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ipr: add support for async scanning to speed up boot
[mirror_ubuntu-zesty-kernel.git] / drivers / scsi / ipr.c
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1da177e4
LT		 1/*
2 * ipr.c -- driver for IBM Power Linux RAID adapters
3 *
4 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation
5 *
6 * Copyright (C) 2003, 2004 IBM Corporation
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24/*
25 * Notes:
26 *
27 * This driver is used to control the following SCSI adapters:
28 *
29 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B
30 *
31 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter
32 * PCI-X Dual Channel Ultra 320 SCSI Adapter
33 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card
34 * Embedded SCSI adapter on p615 and p655 systems
35 *
36 * Supported Hardware Features:
37 * - Ultra 320 SCSI controller
38 * - PCI-X host interface
39 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine
40 * - Non-Volatile Write Cache
41 * - Supports attachment of non-RAID disks, tape, and optical devices
42 * - RAID Levels 0, 5, 10
43 * - Hot spare
44 * - Background Parity Checking
45 * - Background Data Scrubbing
46 * - Ability to increase the capacity of an existing RAID 5 disk array
47 * by adding disks
48 *
49 * Driver Features:
50 * - Tagged command queuing
51 * - Adapter microcode download
52 * - PCI hot plug
53 * - SCSI device hot plug
54 *
55 */
56
1da177e4
LT		 57#include <linux/fs.h>
58#include <linux/init.h>
59#include <linux/types.h>
60#include <linux/errno.h>
61#include <linux/kernel.h>
5a0e3ad6 62#include <linux/slab.h>
4d4dd706 63#include <linux/vmalloc.h>
1da177e4
LT		 64#include <linux/ioport.h>
65#include <linux/delay.h>
66#include <linux/pci.h>
67#include <linux/wait.h>
68#include <linux/spinlock.h>
69#include <linux/sched.h>
70#include <linux/interrupt.h>
71#include <linux/blkdev.h>
72#include <linux/firmware.h>
73#include <linux/module.h>
74#include <linux/moduleparam.h>
35a39691 75#include <linux/libata.h>
0ce3a7e5 76#include <linux/hdreg.h>
f72919ec 77#include <linux/reboot.h>
3e7ebdfa 78#include <linux/stringify.h>
1da177e4
LT		 79#include <asm/io.h>
80#include <asm/irq.h>
81#include <asm/processor.h>
82#include <scsi/scsi.h>
83#include <scsi/scsi_host.h>
84#include <scsi/scsi_tcq.h>
85#include <scsi/scsi_eh.h>
86#include <scsi/scsi_cmnd.h>
1da177e4
LT		 87#include "ipr.h"
88
89/*
90 * Global Data
91 */
b7d68ca3 92static LIST_HEAD(ipr_ioa_head);
1da177e4
LT		 93static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
94static unsigned int ipr_max_speed = 1;
95static int ipr_testmode = 0;
96static unsigned int ipr_fastfail = 0;
5469cb5b 97static unsigned int ipr_transop_timeout = 0;
d3c74871 98static unsigned int ipr_debug = 0;
3e7ebdfa 99static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS;
ac09c349 100static unsigned int ipr_dual_ioa_raid = 1;
05a6538a 101static unsigned int ipr_number_of_msix = 2;
1da177e4
LT		 102static DEFINE_SPINLOCK(ipr_driver_lock);
103
104/* This table describes the differences between DMA controller chips */
105static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
60e7486b 106 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
1da177e4 107 .mailbox = 0x0042C,
89aad428 108 .max_cmds = 100,
1da177e4 109 .cache_line_size = 0x20,
7dd21308 110 .clear_isr = 1,
b53d124a 111 .iopoll_weight = 0,
1da177e4
LT		 112 {
113 .set_interrupt_mask_reg = 0x0022C,
114 .clr_interrupt_mask_reg = 0x00230,
214777ba 115 .clr_interrupt_mask_reg32 = 0x00230,
1da177e4 116 .sense_interrupt_mask_reg = 0x0022C,
214777ba 117 .sense_interrupt_mask_reg32 = 0x0022C,
1da177e4 118 .clr_interrupt_reg = 0x00228,
214777ba 119 .clr_interrupt_reg32 = 0x00228,
1da177e4 120 .sense_interrupt_reg = 0x00224,
214777ba 121 .sense_interrupt_reg32 = 0x00224,
1da177e4
LT		 122 .ioarrin_reg = 0x00404,
123 .sense_uproc_interrupt_reg = 0x00214,
214777ba 124 .sense_uproc_interrupt_reg32 = 0x00214,
1da177e4 125 .set_uproc_interrupt_reg = 0x00214,
214777ba
WB		 126 .set_uproc_interrupt_reg32 = 0x00214,
127 .clr_uproc_interrupt_reg = 0x00218,
128 .clr_uproc_interrupt_reg32 = 0x00218
1da177e4
LT		 129 }
130 },
131 { /* Snipe and Scamp */
132 .mailbox = 0x0052C,
89aad428 133 .max_cmds = 100,
1da177e4 134 .cache_line_size = 0x20,
7dd21308 135 .clear_isr = 1,
b53d124a 136 .iopoll_weight = 0,
1da177e4
LT		 137 {
138 .set_interrupt_mask_reg = 0x00288,
139 .clr_interrupt_mask_reg = 0x0028C,
214777ba 140 .clr_interrupt_mask_reg32 = 0x0028C,
1da177e4 141 .sense_interrupt_mask_reg = 0x00288,
214777ba 142 .sense_interrupt_mask_reg32 = 0x00288,
1da177e4 143 .clr_interrupt_reg = 0x00284,
214777ba 144 .clr_interrupt_reg32 = 0x00284,
1da177e4 145 .sense_interrupt_reg = 0x00280,
214777ba 146 .sense_interrupt_reg32 = 0x00280,
1da177e4
LT		 147 .ioarrin_reg = 0x00504,
148 .sense_uproc_interrupt_reg = 0x00290,
214777ba 149 .sense_uproc_interrupt_reg32 = 0x00290,
1da177e4 150 .set_uproc_interrupt_reg = 0x00290,
214777ba
WB		 151 .set_uproc_interrupt_reg32 = 0x00290,
152 .clr_uproc_interrupt_reg = 0x00294,
153 .clr_uproc_interrupt_reg32 = 0x00294
1da177e4
LT		 154 }
155 },
a74c1639 156 { /* CRoC */
110def85 157 .mailbox = 0x00044,
89aad428 158 .max_cmds = 1000,
a74c1639 159 .cache_line_size = 0x20,
7dd21308 160 .clear_isr = 0,
b53d124a 161 .iopoll_weight = 64,
a74c1639
WB		 162 {
163 .set_interrupt_mask_reg = 0x00010,
164 .clr_interrupt_mask_reg = 0x00018,
214777ba 165 .clr_interrupt_mask_reg32 = 0x0001C,
a74c1639 166 .sense_interrupt_mask_reg = 0x00010,
214777ba 167 .sense_interrupt_mask_reg32 = 0x00014,
a74c1639 168 .clr_interrupt_reg = 0x00008,
214777ba 169 .clr_interrupt_reg32 = 0x0000C,
a74c1639 170 .sense_interrupt_reg = 0x00000,
214777ba 171 .sense_interrupt_reg32 = 0x00004,
a74c1639
WB		 172 .ioarrin_reg = 0x00070,
173 .sense_uproc_interrupt_reg = 0x00020,
214777ba 174 .sense_uproc_interrupt_reg32 = 0x00024,
a74c1639 175 .set_uproc_interrupt_reg = 0x00020,
214777ba 176 .set_uproc_interrupt_reg32 = 0x00024,
dcbad00e 177 .clr_uproc_interrupt_reg = 0x00028,
214777ba
WB		 178 .clr_uproc_interrupt_reg32 = 0x0002C,
179 .init_feedback_reg = 0x0005C,
dcbad00e 180 .dump_addr_reg = 0x00064,
8701f185
WB		 181 .dump_data_reg = 0x00068,
182 .endian_swap_reg = 0x00084
a74c1639
WB		 183 }
184 },
1da177e4
LT		 185};
186
187static const struct ipr_chip_t ipr_chip[] = {
cb237ef7
WB		 188 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
189 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
190 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
191 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
192 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
193 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
194 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
195 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
cd9b3d04 196 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
1da177e4
LT		 197};
198
203fa3fe 199static int ipr_max_bus_speeds[] = {
1da177e4
LT		 200 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
201};
202
203MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
204MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
205module_param_named(max_speed, ipr_max_speed, uint, 0);
206MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
207module_param_named(log_level, ipr_log_level, uint, 0);
208MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
209module_param_named(testmode, ipr_testmode, int, 0);
210MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
2cf22be0 211module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
1da177e4
LT		 212MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
213module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
214MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
2cf22be0 215module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
d3c74871 216MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
ac09c349
BK		 217module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
218MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
3e7ebdfa
WB		 219module_param_named(max_devs, ipr_max_devs, int, 0);
220MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
221 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
05a6538a 222module_param_named(number_of_msix, ipr_number_of_msix, int, 0);
6634ff7c 223MODULE_PARM_DESC(number_of_msix, "Specify the number of MSIX interrupts to use on capable adapters (1 - 16). (default:2)");
1da177e4
LT		 224MODULE_LICENSE("GPL");
225MODULE_VERSION(IPR_DRIVER_VERSION);
226
1da177e4
LT		 227/* A constant array of IOASCs/URCs/Error Messages */
228static const
229struct ipr_error_table_t ipr_error_table[] = {
933916f3 230 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 231 "8155: An unknown error was received"},
232 {0x00330000, 0, 0,
233 "Soft underlength error"},
234 {0x005A0000, 0, 0,
235 "Command to be cancelled not found"},
236 {0x00808000, 0, 0,
237 "Qualified success"},
933916f3 238 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 239 "FFFE: Soft device bus error recovered by the IOA"},
933916f3 240 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 241 "4101: Soft device bus fabric error"},
5aa3a333
WB		 242 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
243 "FFFC: Logical block guard error recovered by the device"},
244 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
245 "FFFC: Logical block reference tag error recovered by the device"},
246 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
247 "4171: Recovered scatter list tag / sequence number error"},
248 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
249 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
250 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
251 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
252 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
253 "FFFD: Recovered logical block reference tag error detected by the IOA"},
254 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
255 "FFFD: Logical block guard error recovered by the IOA"},
933916f3 256 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 257 "FFF9: Device sector reassign successful"},
933916f3 258 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 259 "FFF7: Media error recovered by device rewrite procedures"},
933916f3 260 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 261 "7001: IOA sector reassignment successful"},
933916f3 262 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 263 "FFF9: Soft media error. Sector reassignment recommended"},
933916f3 264 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 265 "FFF7: Media error recovered by IOA rewrite procedures"},
933916f3 266 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 267 "FF3D: Soft PCI bus error recovered by the IOA"},
933916f3 268 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 269 "FFF6: Device hardware error recovered by the IOA"},
933916f3 270 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 271 "FFF6: Device hardware error recovered by the device"},
933916f3 272 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 273 "FF3D: Soft IOA error recovered by the IOA"},
933916f3 274 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 275 "FFFA: Undefined device response recovered by the IOA"},
933916f3 276 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 277 "FFF6: Device bus error, message or command phase"},
933916f3 278 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
35a39691 279 "FFFE: Task Management Function failed"},
933916f3 280 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 281 "FFF6: Failure prediction threshold exceeded"},
933916f3 282 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 283 "8009: Impending cache battery pack failure"},
ed7bd661 284 {0x02040100, 0, 0,
285 "Logical Unit in process of becoming ready"},
286 {0x02040200, 0, 0,
287 "Initializing command required"},
1da177e4
LT		 288 {0x02040400, 0, 0,
289 "34FF: Disk device format in progress"},
ed7bd661 290 {0x02040C00, 0, 0,
291 "Logical unit not accessible, target port in unavailable state"},
65f56475
BK		 292 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
293 "9070: IOA requested reset"},
1da177e4
LT		 294 {0x023F0000, 0, 0,
295 "Synchronization required"},
ed7bd661 296 {0x02408500, 0, 0,
297 "IOA microcode download required"},
298 {0x02408600, 0, 0,
299 "Device bus connection is prohibited by host"},
1da177e4
LT		 300 {0x024E0000, 0, 0,
301 "No ready, IOA shutdown"},
302 {0x025A0000, 0, 0,
303 "Not ready, IOA has been shutdown"},
933916f3 304 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 305 "3020: Storage subsystem configuration error"},
306 {0x03110B00, 0, 0,
307 "FFF5: Medium error, data unreadable, recommend reassign"},
308 {0x03110C00, 0, 0,
309 "7000: Medium error, data unreadable, do not reassign"},
933916f3 310 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 311 "FFF3: Disk media format bad"},
933916f3 312 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 313 "3002: Addressed device failed to respond to selection"},
933916f3 314 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 315 "3100: Device bus error"},
933916f3 316 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 317 "3109: IOA timed out a device command"},
318 {0x04088000, 0, 0,
319 "3120: SCSI bus is not operational"},
933916f3 320 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 321 "4100: Hard device bus fabric error"},
5aa3a333
WB		 322 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
323 "310C: Logical block guard error detected by the device"},
324 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
325 "310C: Logical block reference tag error detected by the device"},
326 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
327 "4170: Scatter list tag / sequence number error"},
328 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
329 "8150: Logical block CRC error on IOA to Host transfer"},
330 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
331 "4170: Logical block sequence number error on IOA to Host transfer"},
332 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
333 "310D: Logical block reference tag error detected by the IOA"},
334 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
335 "310D: Logical block guard error detected by the IOA"},
933916f3 336 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 337 "9000: IOA reserved area data check"},
933916f3 338 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 339 "9001: IOA reserved area invalid data pattern"},
933916f3 340 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 341 "9002: IOA reserved area LRC error"},
5aa3a333
WB		 342 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
343 "Hardware Error, IOA metadata access error"},
933916f3 344 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 345 "102E: Out of alternate sectors for disk storage"},
933916f3 346 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 347 "FFF4: Data transfer underlength error"},
933916f3 348 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 349 "FFF4: Data transfer overlength error"},
933916f3 350 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 351 "3400: Logical unit failure"},
933916f3 352 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 353 "FFF4: Device microcode is corrupt"},
933916f3 354 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 355 "8150: PCI bus error"},
356 {0x04430000, 1, 0,
357 "Unsupported device bus message received"},
933916f3 358 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 359 "FFF4: Disk device problem"},
933916f3 360 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 361 "8150: Permanent IOA failure"},
933916f3 362 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 363 "3010: Disk device returned wrong response to IOA"},
933916f3 364 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 365 "8151: IOA microcode error"},
366 {0x04448500, 0, 0,
367 "Device bus status error"},
933916f3 368 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 369 "8157: IOA error requiring IOA reset to recover"},
35a39691
BK		 370 {0x04448700, 0, 0,
371 "ATA device status error"},
1da177e4
LT		 372 {0x04490000, 0, 0,
373 "Message reject received from the device"},
933916f3 374 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 375 "8008: A permanent cache battery pack failure occurred"},
933916f3 376 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 377 "9090: Disk unit has been modified after the last known status"},
933916f3 378 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 379 "9081: IOA detected device error"},
933916f3 380 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 381 "9082: IOA detected device error"},
933916f3 382 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 383 "3110: Device bus error, message or command phase"},
933916f3 384 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
35a39691 385 "3110: SAS Command / Task Management Function failed"},
933916f3 386 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 387 "9091: Incorrect hardware configuration change has been detected"},
933916f3 388 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 389 "9073: Invalid multi-adapter configuration"},
933916f3 390 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 391 "4010: Incorrect connection between cascaded expanders"},
933916f3 392 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 393 "4020: Connections exceed IOA design limits"},
933916f3 394 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 395 "4030: Incorrect multipath connection"},
933916f3 396 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 397 "4110: Unsupported enclosure function"},
ed7bd661 398 {0x04679800, 0, IPR_DEFAULT_LOG_LEVEL,
399 "4120: SAS cable VPD cannot be read"},
933916f3 400 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 401 "FFF4: Command to logical unit failed"},
402 {0x05240000, 1, 0,
403 "Illegal request, invalid request type or request packet"},
404 {0x05250000, 0, 0,
405 "Illegal request, invalid resource handle"},
b0df54bb
BK		 406 {0x05258000, 0, 0,
407 "Illegal request, commands not allowed to this device"},
408 {0x05258100, 0, 0,
409 "Illegal request, command not allowed to a secondary adapter"},
5aa3a333
WB		 410 {0x05258200, 0, 0,
411 "Illegal request, command not allowed to a non-optimized resource"},
1da177e4
LT		 412 {0x05260000, 0, 0,
413 "Illegal request, invalid field in parameter list"},
414 {0x05260100, 0, 0,
415 "Illegal request, parameter not supported"},
416 {0x05260200, 0, 0,
417 "Illegal request, parameter value invalid"},
418 {0x052C0000, 0, 0,
419 "Illegal request, command sequence error"},
b0df54bb
BK		 420 {0x052C8000, 1, 0,
421 "Illegal request, dual adapter support not enabled"},
ed7bd661 422 {0x052C8100, 1, 0,
423 "Illegal request, another cable connector was physically disabled"},
424 {0x054E8000, 1, 0,
425 "Illegal request, inconsistent group id/group count"},
933916f3 426 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 427 "9031: Array protection temporarily suspended, protection resuming"},
933916f3 428 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 429 "9040: Array protection temporarily suspended, protection resuming"},
ed7bd661 430 {0x060B0100, 0, IPR_DEFAULT_LOG_LEVEL,
431 "4080: IOA exceeded maximum operating temperature"},
432 {0x060B8000, 0, IPR_DEFAULT_LOG_LEVEL,
433 "4085: Service required"},
933916f3 434 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 435 "3140: Device bus not ready to ready transition"},
933916f3 436 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 437 "FFFB: SCSI bus was reset"},
438 {0x06290500, 0, 0,
439 "FFFE: SCSI bus transition to single ended"},
440 {0x06290600, 0, 0,
441 "FFFE: SCSI bus transition to LVD"},
933916f3 442 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 443 "FFFB: SCSI bus was reset by another initiator"},
933916f3 444 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 445 "3029: A device replacement has occurred"},
ed7bd661 446 {0x063F8300, 0, IPR_DEFAULT_LOG_LEVEL,
447 "4102: Device bus fabric performance degradation"},
933916f3 448 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 449 "9051: IOA cache data exists for a missing or failed device"},
933916f3 450 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 451 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
933916f3 452 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 453 "9025: Disk unit is not supported at its physical location"},
933916f3 454 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 455 "3020: IOA detected a SCSI bus configuration error"},
933916f3 456 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 457 "3150: SCSI bus configuration error"},
933916f3 458 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 459 "9074: Asymmetric advanced function disk configuration"},
933916f3 460 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 461 "4040: Incomplete multipath connection between IOA and enclosure"},
933916f3 462 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 463 "4041: Incomplete multipath connection between enclosure and device"},
933916f3 464 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 465 "9075: Incomplete multipath connection between IOA and remote IOA"},
933916f3 466 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 467 "9076: Configuration error, missing remote IOA"},
933916f3 468 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 469 "4050: Enclosure does not support a required multipath function"},
ed7bd661 470 {0x06679800, 0, IPR_DEFAULT_LOG_LEVEL,
471 "4121: Configuration error, required cable is missing"},
472 {0x06679900, 0, IPR_DEFAULT_LOG_LEVEL,
473 "4122: Cable is not plugged into the correct location on remote IOA"},
474 {0x06679A00, 0, IPR_DEFAULT_LOG_LEVEL,
475 "4123: Configuration error, invalid cable vital product data"},
476 {0x06679B00, 0, IPR_DEFAULT_LOG_LEVEL,
477 "4124: Configuration error, both cable ends are plugged into the same IOA"},
b75424fc
WB		 478 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
479 "4070: Logically bad block written on device"},
933916f3 480 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 481 "9041: Array protection temporarily suspended"},
933916f3 482 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 483 "9042: Corrupt array parity detected on specified device"},
933916f3 484 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 485 "9030: Array no longer protected due to missing or failed disk unit"},
933916f3 486 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 487 "9071: Link operational transition"},
933916f3 488 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 489 "9072: Link not operational transition"},
933916f3 490 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 491 "9032: Array exposed but still protected"},
e435340c
BK		 492 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
493 "70DD: Device forced failed by disrupt device command"},
933916f3 494 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 495 "4061: Multipath redundancy level got better"},
933916f3 496 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 497 "4060: Multipath redundancy level got worse"},
1da177e4
LT		 498 {0x07270000, 0, 0,
499 "Failure due to other device"},
933916f3 500 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 501 "9008: IOA does not support functions expected by devices"},
933916f3 502 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 503 "9010: Cache data associated with attached devices cannot be found"},
933916f3 504 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 505 "9011: Cache data belongs to devices other than those attached"},
933916f3 506 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 507 "9020: Array missing 2 or more devices with only 1 device present"},
933916f3 508 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 509 "9021: Array missing 2 or more devices with 2 or more devices present"},
933916f3 510 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 511 "9022: Exposed array is missing a required device"},
933916f3 512 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 513 "9023: Array member(s) not at required physical locations"},
933916f3 514 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 515 "9024: Array not functional due to present hardware configuration"},
933916f3 516 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 517 "9026: Array not functional due to present hardware configuration"},
933916f3 518 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 519 "9027: Array is missing a device and parity is out of sync"},
933916f3 520 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 521 "9028: Maximum number of arrays already exist"},
933916f3 522 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 523 "9050: Required cache data cannot be located for a disk unit"},
933916f3 524 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 525 "9052: Cache data exists for a device that has been modified"},
933916f3 526 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 527 "9054: IOA resources not available due to previous problems"},
933916f3 528 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 529 "9092: Disk unit requires initialization before use"},
933916f3 530 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 531 "9029: Incorrect hardware configuration change has been detected"},
933916f3 532 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 533 "9060: One or more disk pairs are missing from an array"},
933916f3 534 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 535 "9061: One or more disks are missing from an array"},
933916f3 536 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 537 "9062: One or more disks are missing from an array"},
933916f3 538 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 539 "9063: Maximum number of functional arrays has been exceeded"},
ed7bd661 540 {0x07279A00, 0, 0,
541 "Data protect, other volume set problem"},
1da177e4
LT		 542 {0x0B260000, 0, 0,
543 "Aborted command, invalid descriptor"},
ed7bd661 544 {0x0B3F9000, 0, 0,
545 "Target operating conditions have changed, dual adapter takeover"},
546 {0x0B530200, 0, 0,
547 "Aborted command, medium removal prevented"},
1da177e4 548 {0x0B5A0000, 0, 0,
ed7bd661 549 "Command terminated by host"},
550 {0x0B5B8000, 0, 0,
551 "Aborted command, command terminated by host"}
1da177e4
LT		 552};
553
554static const struct ipr_ses_table_entry ipr_ses_table[] = {
555 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
556 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
557 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
558 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
559 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
560 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
561 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
562 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
563 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
564 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
565 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
566 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
567 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
568};
569
570/*
571 * Function Prototypes
572 */
573static int ipr_reset_alert(struct ipr_cmnd *);
574static void ipr_process_ccn(struct ipr_cmnd *);
575static void ipr_process_error(struct ipr_cmnd *);
576static void ipr_reset_ioa_job(struct ipr_cmnd *);
577static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
578 enum ipr_shutdown_type);
579
580#ifdef CONFIG_SCSI_IPR_TRACE
581/**
582 * ipr_trc_hook - Add a trace entry to the driver trace
583 * @ipr_cmd: ipr command struct
584 * @type: trace type
585 * @add_data: additional data
586 *
587 * Return value:
588 * none
589 **/
590static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
591 u8 type, u32 add_data)
592{
593 struct ipr_trace_entry *trace_entry;
594 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
595
56d6aa33 596 trace_entry = &ioa_cfg->trace[atomic_add_return
597 (1, &ioa_cfg->trace_index)%IPR_NUM_TRACE_ENTRIES];
1da177e4
LT		 598 trace_entry->time = jiffies;
599 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
600 trace_entry->type = type;
a32c055f
WB		 601 if (ipr_cmd->ioa_cfg->sis64)
602 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
603 else
604 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
35a39691 605 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
1da177e4
LT		 606 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
607 trace_entry->u.add_data = add_data;
56d6aa33 608 wmb();
1da177e4
LT		 609}
610#else
203fa3fe 611#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while (0)
1da177e4
LT		 612#endif
613
172cd6e1
BK		 614/**
615 * ipr_lock_and_done - Acquire lock and complete command
616 * @ipr_cmd: ipr command struct
617 *
618 * Return value:
619 * none
620 **/
621static void ipr_lock_and_done(struct ipr_cmnd *ipr_cmd)
622{
623 unsigned long lock_flags;
624 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
625
626 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
627 ipr_cmd->done(ipr_cmd);
628 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
629}
630
1da177e4
LT		 631/**
632 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
633 * @ipr_cmd: ipr command struct
634 *
635 * Return value:
636 * none
637 **/
638static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
639{
640 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00
WB		 641 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
642 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
a32c055f 643 dma_addr_t dma_addr = ipr_cmd->dma_addr;
05a6538a 644 int hrrq_id;
1da177e4 645
05a6538a 646 hrrq_id = ioarcb->cmd_pkt.hrrq_id;
1da177e4 647 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
05a6538a 648 ioarcb->cmd_pkt.hrrq_id = hrrq_id;
a32c055f 649 ioarcb->data_transfer_length = 0;
1da177e4 650 ioarcb->read_data_transfer_length = 0;
a32c055f 651 ioarcb->ioadl_len = 0;
1da177e4 652 ioarcb->read_ioadl_len = 0;
a32c055f 653
96d21f00 654 if (ipr_cmd->ioa_cfg->sis64) {
a32c055f
WB		 655 ioarcb->u.sis64_addr_data.data_ioadl_addr =
656 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
96d21f00
WB		 657 ioasa64->u.gata.status = 0;
658 } else {
a32c055f
WB		 659 ioarcb->write_ioadl_addr =
660 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
661 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
96d21f00 662 ioasa->u.gata.status = 0;
a32c055f
WB		 663 }
664
96d21f00
WB		 665 ioasa->hdr.ioasc = 0;
666 ioasa->hdr.residual_data_len = 0;
1da177e4 667 ipr_cmd->scsi_cmd = NULL;
35a39691 668 ipr_cmd->qc = NULL;
1da177e4
LT		 669 ipr_cmd->sense_buffer[0] = 0;
670 ipr_cmd->dma_use_sg = 0;
671}
672
673/**
674 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
675 * @ipr_cmd: ipr command struct
676 *
677 * Return value:
678 * none
679 **/
172cd6e1
BK		 680static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd,
681 void (*fast_done) (struct ipr_cmnd *))
1da177e4
LT		 682{
683 ipr_reinit_ipr_cmnd(ipr_cmd);
684 ipr_cmd->u.scratch = 0;
685 ipr_cmd->sibling = NULL;
172cd6e1 686 ipr_cmd->fast_done = fast_done;
1da177e4
LT		 687 init_timer(&ipr_cmd->timer);
688}
689
690/**
00bfef2c 691 * __ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
1da177e4
LT		 692 * @ioa_cfg: ioa config struct
693 *
694 * Return value:
695 * pointer to ipr command struct
696 **/
697static
05a6538a 698struct ipr_cmnd *__ipr_get_free_ipr_cmnd(struct ipr_hrr_queue *hrrq)
1da177e4 699{
05a6538a 700 struct ipr_cmnd *ipr_cmd = NULL;
701
702 if (likely(!list_empty(&hrrq->hrrq_free_q))) {
703 ipr_cmd = list_entry(hrrq->hrrq_free_q.next,
704 struct ipr_cmnd, queue);
705 list_del(&ipr_cmd->queue);
706 }
1da177e4 707
1da177e4
LT		 708
709 return ipr_cmd;
710}
711
00bfef2c
BK		 712/**
713 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block and initialize it
714 * @ioa_cfg: ioa config struct
715 *
716 * Return value:
717 * pointer to ipr command struct
718 **/
719static
720struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
721{
05a6538a 722 struct ipr_cmnd *ipr_cmd =
723 __ipr_get_free_ipr_cmnd(&ioa_cfg->hrrq[IPR_INIT_HRRQ]);
172cd6e1 724 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
00bfef2c
BK		 725 return ipr_cmd;
726}
727
1da177e4
LT		 728/**
729 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
730 * @ioa_cfg: ioa config struct
731 * @clr_ints: interrupts to clear
732 *
733 * This function masks all interrupts on the adapter, then clears the
734 * interrupts specified in the mask
735 *
736 * Return value:
737 * none
738 **/
739static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
740 u32 clr_ints)
741{
742 volatile u32 int_reg;
56d6aa33 743 int i;
1da177e4
LT		 744
745 /* Stop new interrupts */
56d6aa33 746 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
747 spin_lock(&ioa_cfg->hrrq[i]._lock);
748 ioa_cfg->hrrq[i].allow_interrupts = 0;
749 spin_unlock(&ioa_cfg->hrrq[i]._lock);
750 }
751 wmb();
1da177e4
LT		 752
753 /* Set interrupt mask to stop all new interrupts */
214777ba
WB		 754 if (ioa_cfg->sis64)
755 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
756 else
757 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
1da177e4
LT		 758
759 /* Clear any pending interrupts */
214777ba
WB		 760 if (ioa_cfg->sis64)
761 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
762 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
1da177e4
LT		 763 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
764}
765
766/**
767 * ipr_save_pcix_cmd_reg - Save PCI-X command register
768 * @ioa_cfg: ioa config struct
769 *
770 * Return value:
771 * 0 on success / -EIO on failure
772 **/
773static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
774{
775 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
776
7dce0e1c
BK		 777 if (pcix_cmd_reg == 0)
778 return 0;
1da177e4
LT		 779
780 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
781 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
782 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
783 return -EIO;
784 }
785
786 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
787 return 0;
788}
789
790/**
791 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
792 * @ioa_cfg: ioa config struct
793 *
794 * Return value:
795 * 0 on success / -EIO on failure
796 **/
797static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
798{
799 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
800
801 if (pcix_cmd_reg) {
802 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
803 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
804 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
805 return -EIO;
806 }
1da177e4
LT		 807 }
808
809 return 0;
810}
811
35a39691
BK		 812/**
813 * ipr_sata_eh_done - done function for aborted SATA commands
814 * @ipr_cmd: ipr command struct
815 *
816 * This function is invoked for ops generated to SATA
817 * devices which are being aborted.
818 *
819 * Return value:
820 * none
821 **/
822static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
823{
35a39691
BK		 824 struct ata_queued_cmd *qc = ipr_cmd->qc;
825 struct ipr_sata_port *sata_port = qc->ap->private_data;
826
827 qc->err_mask |= AC_ERR_OTHER;
828 sata_port->ioasa.status |= ATA_BUSY;
05a6538a 829 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
35a39691
BK		 830 ata_qc_complete(qc);
831}
832
1da177e4
LT		 833/**
834 * ipr_scsi_eh_done - mid-layer done function for aborted ops
835 * @ipr_cmd: ipr command struct
836 *
837 * This function is invoked by the interrupt handler for
838 * ops generated by the SCSI mid-layer which are being aborted.
839 *
840 * Return value:
841 * none
842 **/
843static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
844{
1da177e4
LT		 845 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
846
847 scsi_cmd->result |= (DID_ERROR << 16);
848
63015bc9 849 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4 850 scsi_cmd->scsi_done(scsi_cmd);
05a6538a 851 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 852}
853
854/**
855 * ipr_fail_all_ops - Fails all outstanding ops.
856 * @ioa_cfg: ioa config struct
857 *
858 * This function fails all outstanding ops.
859 *
860 * Return value:
861 * none
862 **/
863static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
864{
865 struct ipr_cmnd *ipr_cmd, *temp;
05a6538a 866 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 867
868 ENTER;
05a6538a 869 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 870 spin_lock(&hrrq->_lock);
05a6538a 871 list_for_each_entry_safe(ipr_cmd,
872 temp, &hrrq->hrrq_pending_q, queue) {
873 list_del(&ipr_cmd->queue);
1da177e4 874
05a6538a 875 ipr_cmd->s.ioasa.hdr.ioasc =
876 cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
877 ipr_cmd->s.ioasa.hdr.ilid =
878 cpu_to_be32(IPR_DRIVER_ILID);
1da177e4 879
05a6538a 880 if (ipr_cmd->scsi_cmd)
881 ipr_cmd->done = ipr_scsi_eh_done;
882 else if (ipr_cmd->qc)
883 ipr_cmd->done = ipr_sata_eh_done;
1da177e4 884
05a6538a 885 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH,
886 IPR_IOASC_IOA_WAS_RESET);
887 del_timer(&ipr_cmd->timer);
888 ipr_cmd->done(ipr_cmd);
889 }
56d6aa33 890 spin_unlock(&hrrq->_lock);
1da177e4 891 }
1da177e4
LT		 892 LEAVE;
893}
894
a32c055f
WB		 895/**
896 * ipr_send_command - Send driver initiated requests.
897 * @ipr_cmd: ipr command struct
898 *
899 * This function sends a command to the adapter using the correct write call.
900 * In the case of sis64, calculate the ioarcb size required. Then or in the
901 * appropriate bits.
902 *
903 * Return value:
904 * none
905 **/
906static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
907{
908 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
909 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
910
911 if (ioa_cfg->sis64) {
912 /* The default size is 256 bytes */
913 send_dma_addr |= 0x1;
914
915 /* If the number of ioadls * size of ioadl > 128 bytes,
916 then use a 512 byte ioarcb */
917 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
918 send_dma_addr |= 0x4;
919 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
920 } else
921 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
922}
923
1da177e4
LT		 924/**
925 * ipr_do_req - Send driver initiated requests.
926 * @ipr_cmd: ipr command struct
927 * @done: done function
928 * @timeout_func: timeout function
929 * @timeout: timeout value
930 *
931 * This function sends the specified command to the adapter with the
932 * timeout given. The done function is invoked on command completion.
933 *
934 * Return value:
935 * none
936 **/
937static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
938 void (*done) (struct ipr_cmnd *),
939 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
940{
05a6538a 941 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 942
943 ipr_cmd->done = done;
944
945 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
946 ipr_cmd->timer.expires = jiffies + timeout;
947 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
948
949 add_timer(&ipr_cmd->timer);
950
951 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
952
a32c055f 953 ipr_send_command(ipr_cmd);
1da177e4
LT		 954}
955
956/**
957 * ipr_internal_cmd_done - Op done function for an internally generated op.
958 * @ipr_cmd: ipr command struct
959 *
960 * This function is the op done function for an internally generated,
961 * blocking op. It simply wakes the sleeping thread.
962 *
963 * Return value:
964 * none
965 **/
966static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
967{
968 if (ipr_cmd->sibling)
969 ipr_cmd->sibling = NULL;
970 else
971 complete(&ipr_cmd->completion);
972}
973
a32c055f
WB		 974/**
975 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
976 * @ipr_cmd: ipr command struct
977 * @dma_addr: dma address
978 * @len: transfer length
979 * @flags: ioadl flag value
980 *
981 * This function initializes an ioadl in the case where there is only a single
982 * descriptor.
983 *
984 * Return value:
985 * nothing
986 **/
987static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
988 u32 len, int flags)
989{
990 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
991 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
992
993 ipr_cmd->dma_use_sg = 1;
994
995 if (ipr_cmd->ioa_cfg->sis64) {
996 ioadl64->flags = cpu_to_be32(flags);
997 ioadl64->data_len = cpu_to_be32(len);
998 ioadl64->address = cpu_to_be64(dma_addr);
999
1000 ipr_cmd->ioarcb.ioadl_len =
1001 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
1002 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1003 } else {
1004 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
1005 ioadl->address = cpu_to_be32(dma_addr);
1006
1007 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
1008 ipr_cmd->ioarcb.read_ioadl_len =
1009 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1010 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
1011 } else {
1012 ipr_cmd->ioarcb.ioadl_len =
1013 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1014 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1015 }
1016 }
1017}
1018
1da177e4
LT		 1019/**
1020 * ipr_send_blocking_cmd - Send command and sleep on its completion.
1021 * @ipr_cmd: ipr command struct
1022 * @timeout_func: function to invoke if command times out
1023 * @timeout: timeout
1024 *
1025 * Return value:
1026 * none
1027 **/
1028static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
1029 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
1030 u32 timeout)
1031{
1032 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1033
1034 init_completion(&ipr_cmd->completion);
1035 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
1036
1037 spin_unlock_irq(ioa_cfg->host->host_lock);
1038 wait_for_completion(&ipr_cmd->completion);
1039 spin_lock_irq(ioa_cfg->host->host_lock);
1040}
1041
05a6538a 1042static int ipr_get_hrrq_index(struct ipr_ioa_cfg *ioa_cfg)
1043{
1044 if (ioa_cfg->hrrq_num == 1)
56d6aa33 1045 return 0;
1046 else
1047 return (atomic_add_return(1, &ioa_cfg->hrrq_index) % (ioa_cfg->hrrq_num - 1)) + 1;
05a6538a 1048}
1049
1da177e4
LT		 1050/**
1051 * ipr_send_hcam - Send an HCAM to the adapter.
1052 * @ioa_cfg: ioa config struct
1053 * @type: HCAM type
1054 * @hostrcb: hostrcb struct
1055 *
1056 * This function will send a Host Controlled Async command to the adapter.
1057 * If HCAMs are currently not allowed to be issued to the adapter, it will
1058 * place the hostrcb on the free queue.
1059 *
1060 * Return value:
1061 * none
1062 **/
1063static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
1064 struct ipr_hostrcb *hostrcb)
1065{
1066 struct ipr_cmnd *ipr_cmd;
1067 struct ipr_ioarcb *ioarcb;
1068
56d6aa33 1069 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
1da177e4 1070 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
05a6538a 1071 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 1072 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
1073
1074 ipr_cmd->u.hostrcb = hostrcb;
1075 ioarcb = &ipr_cmd->ioarcb;
1076
1077 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1078 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
1079 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
1080 ioarcb->cmd_pkt.cdb[1] = type;
1081 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
1082 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
1083
a32c055f
WB		 1084 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
1085 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 1086
1087 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
1088 ipr_cmd->done = ipr_process_ccn;
1089 else
1090 ipr_cmd->done = ipr_process_error;
1091
1092 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
1093
a32c055f 1094 ipr_send_command(ipr_cmd);
1da177e4
LT		 1095 } else {
1096 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
1097 }
1098}
1099
3e7ebdfa
WB		 1100/**
1101 * ipr_update_ata_class - Update the ata class in the resource entry
1102 * @res: resource entry struct
1103 * @proto: cfgte device bus protocol value
1104 *
1105 * Return value:
1106 * none
1107 **/
1108static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1109{
203fa3fe 1110 switch (proto) {
3e7ebdfa
WB		 1111 case IPR_PROTO_SATA:
1112 case IPR_PROTO_SAS_STP:
1113 res->ata_class = ATA_DEV_ATA;
1114 break;
1115 case IPR_PROTO_SATA_ATAPI:
1116 case IPR_PROTO_SAS_STP_ATAPI:
1117 res->ata_class = ATA_DEV_ATAPI;
1118 break;
1119 default:
1120 res->ata_class = ATA_DEV_UNKNOWN;
1121 break;
1122 };
1123}
1124
1da177e4
LT		 1125/**
1126 * ipr_init_res_entry - Initialize a resource entry struct.
1127 * @res: resource entry struct
3e7ebdfa 1128 * @cfgtew: config table entry wrapper struct
1da177e4
LT		 1129 *
1130 * Return value:
1131 * none
1132 **/
3e7ebdfa
WB		 1133static void ipr_init_res_entry(struct ipr_resource_entry *res,
1134 struct ipr_config_table_entry_wrapper *cfgtew)
1da177e4 1135{
3e7ebdfa
WB		 1136 int found = 0;
1137 unsigned int proto;
1138 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1139 struct ipr_resource_entry *gscsi_res = NULL;
1140
ee0a90fa 1141 res->needs_sync_complete = 0;
1da177e4
LT		 1142 res->in_erp = 0;
1143 res->add_to_ml = 0;
1144 res->del_from_ml = 0;
1145 res->resetting_device = 0;
0b1f8d44 1146 res->reset_occurred = 0;
1da177e4 1147 res->sdev = NULL;
35a39691 1148 res->sata_port = NULL;
3e7ebdfa
WB		 1149
1150 if (ioa_cfg->sis64) {
1151 proto = cfgtew->u.cfgte64->proto;
1152 res->res_flags = cfgtew->u.cfgte64->res_flags;
1153 res->qmodel = IPR_QUEUEING_MODEL64(res);
438b0331 1154 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1155
1156 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1157 sizeof(res->res_path));
1158
1159 res->bus = 0;
0cb992ed
WB		 1160 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1161 sizeof(res->dev_lun.scsi_lun));
3e7ebdfa
WB		 1162 res->lun = scsilun_to_int(&res->dev_lun);
1163
1164 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1165 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1166 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1167 found = 1;
1168 res->target = gscsi_res->target;
1169 break;
1170 }
1171 }
1172 if (!found) {
1173 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1174 ioa_cfg->max_devs_supported);
1175 set_bit(res->target, ioa_cfg->target_ids);
1176 }
3e7ebdfa
WB		 1177 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1178 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1179 res->target = 0;
1180 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1181 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1182 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1183 ioa_cfg->max_devs_supported);
1184 set_bit(res->target, ioa_cfg->array_ids);
1185 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1186 res->bus = IPR_VSET_VIRTUAL_BUS;
1187 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1188 ioa_cfg->max_devs_supported);
1189 set_bit(res->target, ioa_cfg->vset_ids);
1190 } else {
1191 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1192 ioa_cfg->max_devs_supported);
1193 set_bit(res->target, ioa_cfg->target_ids);
1194 }
1195 } else {
1196 proto = cfgtew->u.cfgte->proto;
1197 res->qmodel = IPR_QUEUEING_MODEL(res);
1198 res->flags = cfgtew->u.cfgte->flags;
1199 if (res->flags & IPR_IS_IOA_RESOURCE)
1200 res->type = IPR_RES_TYPE_IOAFP;
1201 else
1202 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1203
1204 res->bus = cfgtew->u.cfgte->res_addr.bus;
1205 res->target = cfgtew->u.cfgte->res_addr.target;
1206 res->lun = cfgtew->u.cfgte->res_addr.lun;
46d74563 1207 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
3e7ebdfa
WB		 1208 }
1209
1210 ipr_update_ata_class(res, proto);
1211}
1212
1213/**
1214 * ipr_is_same_device - Determine if two devices are the same.
1215 * @res: resource entry struct
1216 * @cfgtew: config table entry wrapper struct
1217 *
1218 * Return value:
1219 * 1 if the devices are the same / 0 otherwise
1220 **/
1221static int ipr_is_same_device(struct ipr_resource_entry *res,
1222 struct ipr_config_table_entry_wrapper *cfgtew)
1223{
1224 if (res->ioa_cfg->sis64) {
1225 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1226 sizeof(cfgtew->u.cfgte64->dev_id)) &&
0cb992ed 1227 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
3e7ebdfa
WB		 1228 sizeof(cfgtew->u.cfgte64->lun))) {
1229 return 1;
1230 }
1231 } else {
1232 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1233 res->target == cfgtew->u.cfgte->res_addr.target &&
1234 res->lun == cfgtew->u.cfgte->res_addr.lun)
1235 return 1;
1236 }
1237
1238 return 0;
1239}
1240
1241/**
b3b3b407 1242 * __ipr_format_res_path - Format the resource path for printing.
3e7ebdfa
WB		 1243 * @res_path: resource path
1244 * @buf: buffer
b3b3b407 1245 * @len: length of buffer provided
3e7ebdfa
WB		 1246 *
1247 * Return value:
1248 * pointer to buffer
1249 **/
b3b3b407 1250static char *__ipr_format_res_path(u8 *res_path, char *buffer, int len)
3e7ebdfa
WB		 1251{
1252 int i;
5adcbeb3 1253 char *p = buffer;
3e7ebdfa 1254
46d74563 1255 *p = '\0';
5adcbeb3
WB		 1256 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1257 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1258 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
3e7ebdfa
WB		 1259
1260 return buffer;
1261}
1262
b3b3b407
BK		 1263/**
1264 * ipr_format_res_path - Format the resource path for printing.
1265 * @ioa_cfg: ioa config struct
1266 * @res_path: resource path
1267 * @buf: buffer
1268 * @len: length of buffer provided
1269 *
1270 * Return value:
1271 * pointer to buffer
1272 **/
1273static char *ipr_format_res_path(struct ipr_ioa_cfg *ioa_cfg,
1274 u8 *res_path, char *buffer, int len)
1275{
1276 char *p = buffer;
1277
1278 *p = '\0';
1279 p += snprintf(p, buffer + len - p, "%d/", ioa_cfg->host->host_no);
1280 __ipr_format_res_path(res_path, p, len - (buffer - p));
1281 return buffer;
1282}
1283
3e7ebdfa
WB		 1284/**
1285 * ipr_update_res_entry - Update the resource entry.
1286 * @res: resource entry struct
1287 * @cfgtew: config table entry wrapper struct
1288 *
1289 * Return value:
1290 * none
1291 **/
1292static void ipr_update_res_entry(struct ipr_resource_entry *res,
1293 struct ipr_config_table_entry_wrapper *cfgtew)
1294{
1295 char buffer[IPR_MAX_RES_PATH_LENGTH];
1296 unsigned int proto;
1297 int new_path = 0;
1298
1299 if (res->ioa_cfg->sis64) {
1300 res->flags = cfgtew->u.cfgte64->flags;
1301 res->res_flags = cfgtew->u.cfgte64->res_flags;
75576bb9 1302 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1303
1304 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1305 sizeof(struct ipr_std_inq_data));
1306
1307 res->qmodel = IPR_QUEUEING_MODEL64(res);
1308 proto = cfgtew->u.cfgte64->proto;
1309 res->res_handle = cfgtew->u.cfgte64->res_handle;
1310 res->dev_id = cfgtew->u.cfgte64->dev_id;
1311
1312 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1313 sizeof(res->dev_lun.scsi_lun));
1314
1315 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1316 sizeof(res->res_path))) {
1317 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1318 sizeof(res->res_path));
1319 new_path = 1;
1320 }
1321
1322 if (res->sdev && new_path)
1323 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
b3b3b407
BK		 1324 ipr_format_res_path(res->ioa_cfg,
1325 res->res_path, buffer, sizeof(buffer)));
3e7ebdfa
WB		 1326 } else {
1327 res->flags = cfgtew->u.cfgte->flags;
1328 if (res->flags & IPR_IS_IOA_RESOURCE)
1329 res->type = IPR_RES_TYPE_IOAFP;
1330 else
1331 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1332
1333 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1334 sizeof(struct ipr_std_inq_data));
1335
1336 res->qmodel = IPR_QUEUEING_MODEL(res);
1337 proto = cfgtew->u.cfgte->proto;
1338 res->res_handle = cfgtew->u.cfgte->res_handle;
1339 }
1340
1341 ipr_update_ata_class(res, proto);
1342}
1343
1344/**
1345 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1346 * for the resource.
1347 * @res: resource entry struct
1348 * @cfgtew: config table entry wrapper struct
1349 *
1350 * Return value:
1351 * none
1352 **/
1353static void ipr_clear_res_target(struct ipr_resource_entry *res)
1354{
1355 struct ipr_resource_entry *gscsi_res = NULL;
1356 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1357
1358 if (!ioa_cfg->sis64)
1359 return;
1360
1361 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1362 clear_bit(res->target, ioa_cfg->array_ids);
1363 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1364 clear_bit(res->target, ioa_cfg->vset_ids);
1365 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1366 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1367 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1368 return;
1369 clear_bit(res->target, ioa_cfg->target_ids);
1370
1371 } else if (res->bus == 0)
1372 clear_bit(res->target, ioa_cfg->target_ids);
1da177e4
LT		 1373}
1374
1375/**
1376 * ipr_handle_config_change - Handle a config change from the adapter
1377 * @ioa_cfg: ioa config struct
1378 * @hostrcb: hostrcb
1379 *
1380 * Return value:
1381 * none
1382 **/
1383static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
3e7ebdfa 1384 struct ipr_hostrcb *hostrcb)
1da177e4
LT		 1385{
1386 struct ipr_resource_entry *res = NULL;
3e7ebdfa
WB		 1387 struct ipr_config_table_entry_wrapper cfgtew;
1388 __be32 cc_res_handle;
1389
1da177e4
LT		 1390 u32 is_ndn = 1;
1391
3e7ebdfa
WB		 1392 if (ioa_cfg->sis64) {
1393 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1394 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1395 } else {
1396 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1397 cc_res_handle = cfgtew.u.cfgte->res_handle;
1398 }
1da177e4
LT		 1399
1400 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 1401 if (res->res_handle == cc_res_handle) {
1da177e4
LT		 1402 is_ndn = 0;
1403 break;
1404 }
1405 }
1406
1407 if (is_ndn) {
1408 if (list_empty(&ioa_cfg->free_res_q)) {
1409 ipr_send_hcam(ioa_cfg,
1410 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1411 hostrcb);
1412 return;
1413 }
1414
1415 res = list_entry(ioa_cfg->free_res_q.next,
1416 struct ipr_resource_entry, queue);
1417
1418 list_del(&res->queue);
3e7ebdfa 1419 ipr_init_res_entry(res, &cfgtew);
1da177e4
LT		 1420 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1421 }
1422
3e7ebdfa 1423 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 1424
1425 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1426 if (res->sdev) {
1da177e4 1427 res->del_from_ml = 1;
3e7ebdfa 1428 res->res_handle = IPR_INVALID_RES_HANDLE;
f688f96d 1429 schedule_work(&ioa_cfg->work_q);
3e7ebdfa
WB		 1430 } else {
1431 ipr_clear_res_target(res);
1da177e4 1432 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3e7ebdfa 1433 }
5767a1c4 1434 } else if (!res->sdev || res->del_from_ml) {
1da177e4 1435 res->add_to_ml = 1;
f688f96d 1436 schedule_work(&ioa_cfg->work_q);
1da177e4
LT		 1437 }
1438
1439 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1440}
1441
1442/**
1443 * ipr_process_ccn - Op done function for a CCN.
1444 * @ipr_cmd: ipr command struct
1445 *
1446 * This function is the op done function for a configuration
1447 * change notification host controlled async from the adapter.
1448 *
1449 * Return value:
1450 * none
1451 **/
1452static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1453{
1454 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1455 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 1456 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 1457
1458 list_del(&hostrcb->queue);
05a6538a 1459 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 1460
1461 if (ioasc) {
1462 if (ioasc != IPR_IOASC_IOA_WAS_RESET)
1463 dev_err(&ioa_cfg->pdev->dev,
1464 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1465
1466 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1467 } else {
1468 ipr_handle_config_change(ioa_cfg, hostrcb);
1469 }
1470}
1471
8cf093e2
BK		 1472/**
1473 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1474 * @i: index into buffer
1475 * @buf: string to modify
1476 *
1477 * This function will strip all trailing whitespace, pad the end
1478 * of the string with a single space, and NULL terminate the string.
1479 *
1480 * Return value:
1481 * new length of string
1482 **/
1483static int strip_and_pad_whitespace(int i, char *buf)
1484{
1485 while (i && buf[i] == ' ')
1486 i--;
1487 buf[i+1] = ' ';
1488 buf[i+2] = '\0';
1489 return i + 2;
1490}
1491
1492/**
1493 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1494 * @prefix: string to print at start of printk
1495 * @hostrcb: hostrcb pointer
1496 * @vpd: vendor/product id/sn struct
1497 *
1498 * Return value:
1499 * none
1500 **/
1501static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1502 struct ipr_vpd *vpd)
1503{
1504 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1505 int i = 0;
1506
1507 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1508 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1509
1510 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1511 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1512
1513 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1514 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1515
1516 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1517}
1518
1da177e4
LT		 1519/**
1520 * ipr_log_vpd - Log the passed VPD to the error log.
cfc32139 1521 * @vpd: vendor/product id/sn struct
1da177e4
LT		 1522 *
1523 * Return value:
1524 * none
1525 **/
cfc32139 1526static void ipr_log_vpd(struct ipr_vpd *vpd)
1da177e4
LT		 1527{
1528 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1529 + IPR_SERIAL_NUM_LEN];
1530
cfc32139
BK		 1531 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1532 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1da177e4
LT		 1533 IPR_PROD_ID_LEN);
1534 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1535 ipr_err("Vendor/Product ID: %s\n", buffer);
1536
cfc32139 1537 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1da177e4
LT		 1538 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1539 ipr_err(" Serial Number: %s\n", buffer);
1540}
1541
8cf093e2
BK		 1542/**
1543 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1544 * @prefix: string to print at start of printk
1545 * @hostrcb: hostrcb pointer
1546 * @vpd: vendor/product id/sn/wwn struct
1547 *
1548 * Return value:
1549 * none
1550 **/
1551static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1552 struct ipr_ext_vpd *vpd)
1553{
1554 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1555 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1556 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1557}
1558
ee0f05b8
BK		 1559/**
1560 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1561 * @vpd: vendor/product id/sn/wwn struct
1562 *
1563 * Return value:
1564 * none
1565 **/
1566static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1567{
1568 ipr_log_vpd(&vpd->vpd);
1569 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1570 be32_to_cpu(vpd->wwid[1]));
1571}
1572
1573/**
1574 * ipr_log_enhanced_cache_error - Log a cache error.
1575 * @ioa_cfg: ioa config struct
1576 * @hostrcb: hostrcb struct
1577 *
1578 * Return value:
1579 * none
1580 **/
1581static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1582 struct ipr_hostrcb *hostrcb)
1583{
4565e370
WB		 1584 struct ipr_hostrcb_type_12_error *error;
1585
1586 if (ioa_cfg->sis64)
1587 error = &hostrcb->hcam.u.error64.u.type_12_error;
1588 else
1589 error = &hostrcb->hcam.u.error.u.type_12_error;
ee0f05b8
BK		 1590
1591 ipr_err("-----Current Configuration-----\n");
1592 ipr_err("Cache Directory Card Information:\n");
1593 ipr_log_ext_vpd(&error->ioa_vpd);
1594 ipr_err("Adapter Card Information:\n");
1595 ipr_log_ext_vpd(&error->cfc_vpd);
1596
1597 ipr_err("-----Expected Configuration-----\n");
1598 ipr_err("Cache Directory Card Information:\n");
1599 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1600 ipr_err("Adapter Card Information:\n");
1601 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1602
1603 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1604 be32_to_cpu(error->ioa_data[0]),
1605 be32_to_cpu(error->ioa_data[1]),
1606 be32_to_cpu(error->ioa_data[2]));
1607}
1608
1da177e4
LT		 1609/**
1610 * ipr_log_cache_error - Log a cache error.
1611 * @ioa_cfg: ioa config struct
1612 * @hostrcb: hostrcb struct
1613 *
1614 * Return value:
1615 * none
1616 **/
1617static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1618 struct ipr_hostrcb *hostrcb)
1619{
1620 struct ipr_hostrcb_type_02_error *error =
1621 &hostrcb->hcam.u.error.u.type_02_error;
1622
1623 ipr_err("-----Current Configuration-----\n");
1624 ipr_err("Cache Directory Card Information:\n");
cfc32139 1625 ipr_log_vpd(&error->ioa_vpd);
1da177e4 1626 ipr_err("Adapter Card Information:\n");
cfc32139 1627 ipr_log_vpd(&error->cfc_vpd);
1da177e4
LT		 1628
1629 ipr_err("-----Expected Configuration-----\n");
1630 ipr_err("Cache Directory Card Information:\n");
cfc32139 1631 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1da177e4 1632 ipr_err("Adapter Card Information:\n");
cfc32139 1633 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1da177e4
LT		 1634
1635 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1636 be32_to_cpu(error->ioa_data[0]),
1637 be32_to_cpu(error->ioa_data[1]),
1638 be32_to_cpu(error->ioa_data[2]));
1639}
1640
ee0f05b8
BK		 1641/**
1642 * ipr_log_enhanced_config_error - Log a configuration error.
1643 * @ioa_cfg: ioa config struct
1644 * @hostrcb: hostrcb struct
1645 *
1646 * Return value:
1647 * none
1648 **/
1649static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1650 struct ipr_hostrcb *hostrcb)
1651{
1652 int errors_logged, i;
1653 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1654 struct ipr_hostrcb_type_13_error *error;
1655
1656 error = &hostrcb->hcam.u.error.u.type_13_error;
1657 errors_logged = be32_to_cpu(error->errors_logged);
1658
1659 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1660 be32_to_cpu(error->errors_detected), errors_logged);
1661
1662 dev_entry = error->dev;
1663
1664 for (i = 0; i < errors_logged; i++, dev_entry++) {
1665 ipr_err_separator;
1666
1667 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1668 ipr_log_ext_vpd(&dev_entry->vpd);
1669
1670 ipr_err("-----New Device Information-----\n");
1671 ipr_log_ext_vpd(&dev_entry->new_vpd);
1672
1673 ipr_err("Cache Directory Card Information:\n");
1674 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1675
1676 ipr_err("Adapter Card Information:\n");
1677 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1678 }
1679}
1680
4565e370
WB		 1681/**
1682 * ipr_log_sis64_config_error - Log a device error.
1683 * @ioa_cfg: ioa config struct
1684 * @hostrcb: hostrcb struct
1685 *
1686 * Return value:
1687 * none
1688 **/
1689static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1690 struct ipr_hostrcb *hostrcb)
1691{
1692 int errors_logged, i;
1693 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1694 struct ipr_hostrcb_type_23_error *error;
1695 char buffer[IPR_MAX_RES_PATH_LENGTH];
1696
1697 error = &hostrcb->hcam.u.error64.u.type_23_error;
1698 errors_logged = be32_to_cpu(error->errors_logged);
1699
1700 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1701 be32_to_cpu(error->errors_detected), errors_logged);
1702
1703 dev_entry = error->dev;
1704
1705 for (i = 0; i < errors_logged; i++, dev_entry++) {
1706 ipr_err_separator;
1707
1708 ipr_err("Device %d : %s", i + 1,
b3b3b407
BK		 1709 __ipr_format_res_path(dev_entry->res_path,
1710 buffer, sizeof(buffer)));
4565e370
WB		 1711 ipr_log_ext_vpd(&dev_entry->vpd);
1712
1713 ipr_err("-----New Device Information-----\n");
1714 ipr_log_ext_vpd(&dev_entry->new_vpd);
1715
1716 ipr_err("Cache Directory Card Information:\n");
1717 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1718
1719 ipr_err("Adapter Card Information:\n");
1720 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1721 }
1722}
1723
1da177e4
LT		 1724/**
1725 * ipr_log_config_error - Log a configuration error.
1726 * @ioa_cfg: ioa config struct
1727 * @hostrcb: hostrcb struct
1728 *
1729 * Return value:
1730 * none
1731 **/
1732static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1733 struct ipr_hostrcb *hostrcb)
1734{
1735 int errors_logged, i;
1736 struct ipr_hostrcb_device_data_entry *dev_entry;
1737 struct ipr_hostrcb_type_03_error *error;
1738
1739 error = &hostrcb->hcam.u.error.u.type_03_error;
1740 errors_logged = be32_to_cpu(error->errors_logged);
1741
1742 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1743 be32_to_cpu(error->errors_detected), errors_logged);
1744
cfc32139 1745 dev_entry = error->dev;
1da177e4
LT		 1746
1747 for (i = 0; i < errors_logged; i++, dev_entry++) {
1748 ipr_err_separator;
1749
fa15b1f6 1750 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
cfc32139 1751 ipr_log_vpd(&dev_entry->vpd);
1da177e4
LT		 1752
1753 ipr_err("-----New Device Information-----\n");
cfc32139 1754 ipr_log_vpd(&dev_entry->new_vpd);
1da177e4
LT		 1755
1756 ipr_err("Cache Directory Card Information:\n");
cfc32139 1757 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1da177e4
LT		 1758
1759 ipr_err("Adapter Card Information:\n");
cfc32139 1760 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1da177e4
LT		 1761
1762 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1763 be32_to_cpu(dev_entry->ioa_data[0]),
1764 be32_to_cpu(dev_entry->ioa_data[1]),
1765 be32_to_cpu(dev_entry->ioa_data[2]),
1766 be32_to_cpu(dev_entry->ioa_data[3]),
1767 be32_to_cpu(dev_entry->ioa_data[4]));
1768 }
1769}
1770
ee0f05b8
BK		 1771/**
1772 * ipr_log_enhanced_array_error - Log an array configuration error.
1773 * @ioa_cfg: ioa config struct
1774 * @hostrcb: hostrcb struct
1775 *
1776 * Return value:
1777 * none
1778 **/
1779static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1780 struct ipr_hostrcb *hostrcb)
1781{
1782 int i, num_entries;
1783 struct ipr_hostrcb_type_14_error *error;
1784 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1785 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1786
1787 error = &hostrcb->hcam.u.error.u.type_14_error;
1788
1789 ipr_err_separator;
1790
1791 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1792 error->protection_level,
1793 ioa_cfg->host->host_no,
1794 error->last_func_vset_res_addr.bus,
1795 error->last_func_vset_res_addr.target,
1796 error->last_func_vset_res_addr.lun);
1797
1798 ipr_err_separator;
1799
1800 array_entry = error->array_member;
1801 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
7262026f 1802 ARRAY_SIZE(error->array_member));
ee0f05b8
BK		 1803
1804 for (i = 0; i < num_entries; i++, array_entry++) {
1805 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1806 continue;
1807
1808 if (be32_to_cpu(error->exposed_mode_adn) == i)
1809 ipr_err("Exposed Array Member %d:\n", i);
1810 else
1811 ipr_err("Array Member %d:\n", i);
1812
1813 ipr_log_ext_vpd(&array_entry->vpd);
1814 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1815 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1816 "Expected Location");
1817
1818 ipr_err_separator;
1819 }
1820}
1821
1da177e4
LT		 1822/**
1823 * ipr_log_array_error - Log an array configuration error.
1824 * @ioa_cfg: ioa config struct
1825 * @hostrcb: hostrcb struct
1826 *
1827 * Return value:
1828 * none
1829 **/
1830static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1831 struct ipr_hostrcb *hostrcb)
1832{
1833 int i;
1834 struct ipr_hostrcb_type_04_error *error;
1835 struct ipr_hostrcb_array_data_entry *array_entry;
1836 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1837
1838 error = &hostrcb->hcam.u.error.u.type_04_error;
1839
1840 ipr_err_separator;
1841
1842 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1843 error->protection_level,
1844 ioa_cfg->host->host_no,
1845 error->last_func_vset_res_addr.bus,
1846 error->last_func_vset_res_addr.target,
1847 error->last_func_vset_res_addr.lun);
1848
1849 ipr_err_separator;
1850
1851 array_entry = error->array_member;
1852
1853 for (i = 0; i < 18; i++) {
cfc32139 1854 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1da177e4
LT		 1855 continue;
1856
fa15b1f6 1857 if (be32_to_cpu(error->exposed_mode_adn) == i)
1da177e4 1858 ipr_err("Exposed Array Member %d:\n", i);
fa15b1f6 1859 else
1da177e4 1860 ipr_err("Array Member %d:\n", i);
1da177e4 1861
cfc32139 1862 ipr_log_vpd(&array_entry->vpd);
1da177e4 1863
fa15b1f6
BK		 1864 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1865 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1866 "Expected Location");
1da177e4
LT		 1867
1868 ipr_err_separator;
1869
1870 if (i == 9)
1871 array_entry = error->array_member2;
1872 else
1873 array_entry++;
1874 }
1875}
1876
1877/**
b0df54bb 1878 * ipr_log_hex_data - Log additional hex IOA error data.
ac719aba 1879 * @ioa_cfg: ioa config struct
b0df54bb
BK		 1880 * @data: IOA error data
1881 * @len: data length
1da177e4
LT		 1882 *
1883 * Return value:
1884 * none
1885 **/
ac719aba 1886static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
1da177e4
LT		 1887{
1888 int i;
1da177e4 1889
b0df54bb 1890 if (len == 0)
1da177e4
LT		 1891 return;
1892
ac719aba
BK		 1893 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1894 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1895
b0df54bb 1896 for (i = 0; i < len / 4; i += 4) {
1da177e4 1897 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
b0df54bb
BK		 1898 be32_to_cpu(data[i]),
1899 be32_to_cpu(data[i+1]),
1900 be32_to_cpu(data[i+2]),
1901 be32_to_cpu(data[i+3]));
1da177e4
LT		 1902 }
1903}
1904
ee0f05b8
BK		 1905/**
1906 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1907 * @ioa_cfg: ioa config struct
1908 * @hostrcb: hostrcb struct
1909 *
1910 * Return value:
1911 * none
1912 **/
1913static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1914 struct ipr_hostrcb *hostrcb)
1915{
1916 struct ipr_hostrcb_type_17_error *error;
1917
4565e370
WB		 1918 if (ioa_cfg->sis64)
1919 error = &hostrcb->hcam.u.error64.u.type_17_error;
1920 else
1921 error = &hostrcb->hcam.u.error.u.type_17_error;
1922
ee0f05b8 1923 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1924 strim(error->failure_reason);
ee0f05b8 1925
8cf093e2
BK		 1926 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1927 be32_to_cpu(hostrcb->hcam.u.error.prc));
1928 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1929 ipr_log_hex_data(ioa_cfg, error->data,
ee0f05b8
BK		 1930 be32_to_cpu(hostrcb->hcam.length) -
1931 (offsetof(struct ipr_hostrcb_error, u) +
1932 offsetof(struct ipr_hostrcb_type_17_error, data)));
1933}
1934
b0df54bb
BK		 1935/**
1936 * ipr_log_dual_ioa_error - Log a dual adapter error.
1937 * @ioa_cfg: ioa config struct
1938 * @hostrcb: hostrcb struct
1939 *
1940 * Return value:
1941 * none
1942 **/
1943static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1944 struct ipr_hostrcb *hostrcb)
1945{
1946 struct ipr_hostrcb_type_07_error *error;
1947
1948 error = &hostrcb->hcam.u.error.u.type_07_error;
1949 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1950 strim(error->failure_reason);
b0df54bb 1951
8cf093e2
BK		 1952 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1953 be32_to_cpu(hostrcb->hcam.u.error.prc));
1954 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1955 ipr_log_hex_data(ioa_cfg, error->data,
b0df54bb
BK		 1956 be32_to_cpu(hostrcb->hcam.length) -
1957 (offsetof(struct ipr_hostrcb_error, u) +
1958 offsetof(struct ipr_hostrcb_type_07_error, data)));
1959}
1960
49dc6a18
BK		 1961static const struct {
1962 u8 active;
1963 char *desc;
1964} path_active_desc[] = {
1965 { IPR_PATH_NO_INFO, "Path" },
1966 { IPR_PATH_ACTIVE, "Active path" },
1967 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1968};
1969
1970static const struct {
1971 u8 state;
1972 char *desc;
1973} path_state_desc[] = {
1974 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1975 { IPR_PATH_HEALTHY, "is healthy" },
1976 { IPR_PATH_DEGRADED, "is degraded" },
1977 { IPR_PATH_FAILED, "is failed" }
1978};
1979
1980/**
1981 * ipr_log_fabric_path - Log a fabric path error
1982 * @hostrcb: hostrcb struct
1983 * @fabric: fabric descriptor
1984 *
1985 * Return value:
1986 * none
1987 **/
1988static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
1989 struct ipr_hostrcb_fabric_desc *fabric)
1990{
1991 int i, j;
1992 u8 path_state = fabric->path_state;
1993 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1994 u8 state = path_state & IPR_PATH_STATE_MASK;
1995
1996 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1997 if (path_active_desc[i].active != active)
1998 continue;
1999
2000 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2001 if (path_state_desc[j].state != state)
2002 continue;
2003
2004 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
2005 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
2006 path_active_desc[i].desc, path_state_desc[j].desc,
2007 fabric->ioa_port);
2008 } else if (fabric->cascaded_expander == 0xff) {
2009 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
2010 path_active_desc[i].desc, path_state_desc[j].desc,
2011 fabric->ioa_port, fabric->phy);
2012 } else if (fabric->phy == 0xff) {
2013 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
2014 path_active_desc[i].desc, path_state_desc[j].desc,
2015 fabric->ioa_port, fabric->cascaded_expander);
2016 } else {
2017 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
2018 path_active_desc[i].desc, path_state_desc[j].desc,
2019 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2020 }
2021 return;
2022 }
2023 }
2024
2025 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
2026 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2027}
2028
4565e370
WB		 2029/**
2030 * ipr_log64_fabric_path - Log a fabric path error
2031 * @hostrcb: hostrcb struct
2032 * @fabric: fabric descriptor
2033 *
2034 * Return value:
2035 * none
2036 **/
2037static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
2038 struct ipr_hostrcb64_fabric_desc *fabric)
2039{
2040 int i, j;
2041 u8 path_state = fabric->path_state;
2042 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2043 u8 state = path_state & IPR_PATH_STATE_MASK;
2044 char buffer[IPR_MAX_RES_PATH_LENGTH];
2045
2046 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2047 if (path_active_desc[i].active != active)
2048 continue;
2049
2050 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2051 if (path_state_desc[j].state != state)
2052 continue;
2053
2054 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
2055 path_active_desc[i].desc, path_state_desc[j].desc,
b3b3b407
BK		 2056 ipr_format_res_path(hostrcb->ioa_cfg,
2057 fabric->res_path,
2058 buffer, sizeof(buffer)));
4565e370
WB		 2059 return;
2060 }
2061 }
2062
2063 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
b3b3b407
BK		 2064 ipr_format_res_path(hostrcb->ioa_cfg, fabric->res_path,
2065 buffer, sizeof(buffer)));
4565e370
WB		 2066}
2067
49dc6a18
BK		 2068static const struct {
2069 u8 type;
2070 char *desc;
2071} path_type_desc[] = {
2072 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
2073 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
2074 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
2075 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
2076};
2077
2078static const struct {
2079 u8 status;
2080 char *desc;
2081} path_status_desc[] = {
2082 { IPR_PATH_CFG_NO_PROB, "Functional" },
2083 { IPR_PATH_CFG_DEGRADED, "Degraded" },
2084 { IPR_PATH_CFG_FAILED, "Failed" },
2085 { IPR_PATH_CFG_SUSPECT, "Suspect" },
2086 { IPR_PATH_NOT_DETECTED, "Missing" },
2087 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
2088};
2089
2090static const char *link_rate[] = {
2091 "unknown",
2092 "disabled",
2093 "phy reset problem",
2094 "spinup hold",
2095 "port selector",
2096 "unknown",
2097 "unknown",
2098 "unknown",
2099 "1.5Gbps",
2100 "3.0Gbps",
2101 "unknown",
2102 "unknown",
2103 "unknown",
2104 "unknown",
2105 "unknown",
2106 "unknown"
2107};
2108
2109/**
2110 * ipr_log_path_elem - Log a fabric path element.
2111 * @hostrcb: hostrcb struct
2112 * @cfg: fabric path element struct
2113 *
2114 * Return value:
2115 * none
2116 **/
2117static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
2118 struct ipr_hostrcb_config_element *cfg)
2119{
2120 int i, j;
2121 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2122 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2123
2124 if (type == IPR_PATH_CFG_NOT_EXIST)
2125 return;
2126
2127 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2128 if (path_type_desc[i].type != type)
2129 continue;
2130
2131 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2132 if (path_status_desc[j].status != status)
2133 continue;
2134
2135 if (type == IPR_PATH_CFG_IOA_PORT) {
2136 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2137 path_status_desc[j].desc, path_type_desc[i].desc,
2138 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2139 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2140 } else {
2141 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2142 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2143 path_status_desc[j].desc, path_type_desc[i].desc,
2144 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2145 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2146 } else if (cfg->cascaded_expander == 0xff) {
2147 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2148 "WWN=%08X%08X\n", path_status_desc[j].desc,
2149 path_type_desc[i].desc, cfg->phy,
2150 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2151 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2152 } else if (cfg->phy == 0xff) {
2153 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2154 "WWN=%08X%08X\n", path_status_desc[j].desc,
2155 path_type_desc[i].desc, cfg->cascaded_expander,
2156 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2157 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2158 } else {
2159 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2160 "WWN=%08X%08X\n", path_status_desc[j].desc,
2161 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2162 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2163 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2164 }
2165 }
2166 return;
2167 }
2168 }
2169
2170 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2171 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2172 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2173 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2174}
2175
4565e370
WB		 2176/**
2177 * ipr_log64_path_elem - Log a fabric path element.
2178 * @hostrcb: hostrcb struct
2179 * @cfg: fabric path element struct
2180 *
2181 * Return value:
2182 * none
2183 **/
2184static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2185 struct ipr_hostrcb64_config_element *cfg)
2186{
2187 int i, j;
2188 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2189 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2190 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2191 char buffer[IPR_MAX_RES_PATH_LENGTH];
2192
2193 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2194 return;
2195
2196 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2197 if (path_type_desc[i].type != type)
2198 continue;
2199
2200 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2201 if (path_status_desc[j].status != status)
2202 continue;
2203
2204 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2205 path_status_desc[j].desc, path_type_desc[i].desc,
b3b3b407
BK		 2206 ipr_format_res_path(hostrcb->ioa_cfg,
2207 cfg->res_path, buffer, sizeof(buffer)),
2208 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2209 be32_to_cpu(cfg->wwid[0]),
2210 be32_to_cpu(cfg->wwid[1]));
4565e370
WB		 2211 return;
2212 }
2213 }
2214 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2215 "WWN=%08X%08X\n", cfg->type_status,
b3b3b407
BK		 2216 ipr_format_res_path(hostrcb->ioa_cfg,
2217 cfg->res_path, buffer, sizeof(buffer)),
2218 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2219 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
4565e370
WB		 2220}
2221
49dc6a18
BK		 2222/**
2223 * ipr_log_fabric_error - Log a fabric error.
2224 * @ioa_cfg: ioa config struct
2225 * @hostrcb: hostrcb struct
2226 *
2227 * Return value:
2228 * none
2229 **/
2230static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2231 struct ipr_hostrcb *hostrcb)
2232{
2233 struct ipr_hostrcb_type_20_error *error;
2234 struct ipr_hostrcb_fabric_desc *fabric;
2235 struct ipr_hostrcb_config_element *cfg;
2236 int i, add_len;
2237
2238 error = &hostrcb->hcam.u.error.u.type_20_error;
2239 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2240 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2241
2242 add_len = be32_to_cpu(hostrcb->hcam.length) -
2243 (offsetof(struct ipr_hostrcb_error, u) +
2244 offsetof(struct ipr_hostrcb_type_20_error, desc));
2245
2246 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2247 ipr_log_fabric_path(hostrcb, fabric);
2248 for_each_fabric_cfg(fabric, cfg)
2249 ipr_log_path_elem(hostrcb, cfg);
2250
2251 add_len -= be16_to_cpu(fabric->length);
2252 fabric = (struct ipr_hostrcb_fabric_desc *)
2253 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2254 }
2255
ac719aba 2256 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
49dc6a18
BK		 2257}
2258
4565e370
WB		 2259/**
2260 * ipr_log_sis64_array_error - Log a sis64 array error.
2261 * @ioa_cfg: ioa config struct
2262 * @hostrcb: hostrcb struct
2263 *
2264 * Return value:
2265 * none
2266 **/
2267static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2268 struct ipr_hostrcb *hostrcb)
2269{
2270 int i, num_entries;
2271 struct ipr_hostrcb_type_24_error *error;
2272 struct ipr_hostrcb64_array_data_entry *array_entry;
2273 char buffer[IPR_MAX_RES_PATH_LENGTH];
2274 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2275
2276 error = &hostrcb->hcam.u.error64.u.type_24_error;
2277
2278 ipr_err_separator;
2279
2280 ipr_err("RAID %s Array Configuration: %s\n",
2281 error->protection_level,
b3b3b407
BK		 2282 ipr_format_res_path(ioa_cfg, error->last_res_path,
2283 buffer, sizeof(buffer)));
4565e370
WB		 2284
2285 ipr_err_separator;
2286
2287 array_entry = error->array_member;
7262026f
WB		 2288 num_entries = min_t(u32, error->num_entries,
2289 ARRAY_SIZE(error->array_member));
4565e370
WB		 2290
2291 for (i = 0; i < num_entries; i++, array_entry++) {
2292
2293 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2294 continue;
2295
2296 if (error->exposed_mode_adn == i)
2297 ipr_err("Exposed Array Member %d:\n", i);
2298 else
2299 ipr_err("Array Member %d:\n", i);
2300
2301 ipr_err("Array Member %d:\n", i);
2302 ipr_log_ext_vpd(&array_entry->vpd);
7262026f 2303 ipr_err("Current Location: %s\n",
b3b3b407
BK		 2304 ipr_format_res_path(ioa_cfg, array_entry->res_path,
2305 buffer, sizeof(buffer)));
7262026f 2306 ipr_err("Expected Location: %s\n",
b3b3b407
BK		 2307 ipr_format_res_path(ioa_cfg,
2308 array_entry->expected_res_path,
2309 buffer, sizeof(buffer)));
4565e370
WB		 2310
2311 ipr_err_separator;
2312 }
2313}
2314
2315/**
2316 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2317 * @ioa_cfg: ioa config struct
2318 * @hostrcb: hostrcb struct
2319 *
2320 * Return value:
2321 * none
2322 **/
2323static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2324 struct ipr_hostrcb *hostrcb)
2325{
2326 struct ipr_hostrcb_type_30_error *error;
2327 struct ipr_hostrcb64_fabric_desc *fabric;
2328 struct ipr_hostrcb64_config_element *cfg;
2329 int i, add_len;
2330
2331 error = &hostrcb->hcam.u.error64.u.type_30_error;
2332
2333 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2334 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2335
2336 add_len = be32_to_cpu(hostrcb->hcam.length) -
2337 (offsetof(struct ipr_hostrcb64_error, u) +
2338 offsetof(struct ipr_hostrcb_type_30_error, desc));
2339
2340 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2341 ipr_log64_fabric_path(hostrcb, fabric);
2342 for_each_fabric_cfg(fabric, cfg)
2343 ipr_log64_path_elem(hostrcb, cfg);
2344
2345 add_len -= be16_to_cpu(fabric->length);
2346 fabric = (struct ipr_hostrcb64_fabric_desc *)
2347 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2348 }
2349
2350 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
2351}
2352
b0df54bb
BK		 2353/**
2354 * ipr_log_generic_error - Log an adapter error.
2355 * @ioa_cfg: ioa config struct
2356 * @hostrcb: hostrcb struct
2357 *
2358 * Return value:
2359 * none
2360 **/
2361static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2362 struct ipr_hostrcb *hostrcb)
2363{
ac719aba 2364 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
b0df54bb
BK		 2365 be32_to_cpu(hostrcb->hcam.length));
2366}
2367
169b9ec8
WX		 2368/**
2369 * ipr_log_sis64_device_error - Log a cache error.
2370 * @ioa_cfg: ioa config struct
2371 * @hostrcb: hostrcb struct
2372 *
2373 * Return value:
2374 * none
2375 **/
2376static void ipr_log_sis64_device_error(struct ipr_ioa_cfg *ioa_cfg,
2377 struct ipr_hostrcb *hostrcb)
2378{
2379 struct ipr_hostrcb_type_21_error *error;
2380 char buffer[IPR_MAX_RES_PATH_LENGTH];
2381
2382 error = &hostrcb->hcam.u.error64.u.type_21_error;
2383
2384 ipr_err("-----Failing Device Information-----\n");
2385 ipr_err("World Wide Unique ID: %08X%08X%08X%08X\n",
2386 be32_to_cpu(error->wwn[0]), be32_to_cpu(error->wwn[1]),
2387 be32_to_cpu(error->wwn[2]), be32_to_cpu(error->wwn[3]));
2388 ipr_err("Device Resource Path: %s\n",
2389 __ipr_format_res_path(error->res_path,
2390 buffer, sizeof(buffer)));
2391 error->primary_problem_desc[sizeof(error->primary_problem_desc) - 1] = '\0';
2392 error->second_problem_desc[sizeof(error->second_problem_desc) - 1] = '\0';
2393 ipr_err("Primary Problem Description: %s\n", error->primary_problem_desc);
2394 ipr_err("Secondary Problem Description: %s\n", error->second_problem_desc);
2395 ipr_err("SCSI Sense Data:\n");
2396 ipr_log_hex_data(ioa_cfg, error->sense_data, sizeof(error->sense_data));
2397 ipr_err("SCSI Command Descriptor Block: \n");
2398 ipr_log_hex_data(ioa_cfg, error->cdb, sizeof(error->cdb));
2399
2400 ipr_err("Additional IOA Data:\n");
2401 ipr_log_hex_data(ioa_cfg, error->ioa_data, be32_to_cpu(error->length_of_error));
2402}
2403
1da177e4
LT		 2404/**
2405 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2406 * @ioasc: IOASC
2407 *
2408 * This function will return the index of into the ipr_error_table
2409 * for the specified IOASC. If the IOASC is not in the table,
2410 * 0 will be returned, which points to the entry used for unknown errors.
2411 *
2412 * Return value:
2413 * index into the ipr_error_table
2414 **/
2415static u32 ipr_get_error(u32 ioasc)
2416{
2417 int i;
2418
2419 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
35a39691 2420 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
1da177e4
LT		 2421 return i;
2422
2423 return 0;
2424}
2425
2426/**
2427 * ipr_handle_log_data - Log an adapter error.
2428 * @ioa_cfg: ioa config struct
2429 * @hostrcb: hostrcb struct
2430 *
2431 * This function logs an adapter error to the system.
2432 *
2433 * Return value:
2434 * none
2435 **/
2436static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2437 struct ipr_hostrcb *hostrcb)
2438{
2439 u32 ioasc;
2440 int error_index;
3185ea63 2441 struct ipr_hostrcb_type_21_error *error;
1da177e4
LT		 2442
2443 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2444 return;
2445
2446 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2447 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2448
4565e370
WB		 2449 if (ioa_cfg->sis64)
2450 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2451 else
2452 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4 2453
4565e370
WB		 2454 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2455 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
1da177e4
LT		 2456 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2457 scsi_report_bus_reset(ioa_cfg->host,
4565e370 2458 hostrcb->hcam.u.error.fd_res_addr.bus);
1da177e4
LT		 2459 }
2460
2461 error_index = ipr_get_error(ioasc);
2462
2463 if (!ipr_error_table[error_index].log_hcam)
2464 return;
2465
3185ea63 2466 if (ioasc == IPR_IOASC_HW_CMD_FAILED &&
2467 hostrcb->hcam.overlay_id == IPR_HOST_RCB_OVERLAY_ID_21) {
2468 error = &hostrcb->hcam.u.error64.u.type_21_error;
2469
2470 if (((be32_to_cpu(error->sense_data[0]) & 0x0000ff00) >> 8) == ILLEGAL_REQUEST &&
2471 ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
2472 return;
2473 }
2474
49dc6a18 2475 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
1da177e4
LT		 2476
2477 /* Set indication we have logged an error */
2478 ioa_cfg->errors_logged++;
2479
933916f3 2480 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
1da177e4 2481 return;
cf852037
BK		 2482 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2483 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
1da177e4
LT		 2484
2485 switch (hostrcb->hcam.overlay_id) {
1da177e4
LT		 2486 case IPR_HOST_RCB_OVERLAY_ID_2:
2487 ipr_log_cache_error(ioa_cfg, hostrcb);
2488 break;
2489 case IPR_HOST_RCB_OVERLAY_ID_3:
2490 ipr_log_config_error(ioa_cfg, hostrcb);
2491 break;
2492 case IPR_HOST_RCB_OVERLAY_ID_4:
2493 case IPR_HOST_RCB_OVERLAY_ID_6:
2494 ipr_log_array_error(ioa_cfg, hostrcb);
2495 break;
b0df54bb
BK		 2496 case IPR_HOST_RCB_OVERLAY_ID_7:
2497 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2498 break;
ee0f05b8
BK		 2499 case IPR_HOST_RCB_OVERLAY_ID_12:
2500 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2501 break;
2502 case IPR_HOST_RCB_OVERLAY_ID_13:
2503 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2504 break;
2505 case IPR_HOST_RCB_OVERLAY_ID_14:
2506 case IPR_HOST_RCB_OVERLAY_ID_16:
2507 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2508 break;
2509 case IPR_HOST_RCB_OVERLAY_ID_17:
2510 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2511 break;
49dc6a18
BK		 2512 case IPR_HOST_RCB_OVERLAY_ID_20:
2513 ipr_log_fabric_error(ioa_cfg, hostrcb);
2514 break;
169b9ec8
WX		 2515 case IPR_HOST_RCB_OVERLAY_ID_21:
2516 ipr_log_sis64_device_error(ioa_cfg, hostrcb);
2517 break;
4565e370
WB		 2518 case IPR_HOST_RCB_OVERLAY_ID_23:
2519 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2520 break;
2521 case IPR_HOST_RCB_OVERLAY_ID_24:
2522 case IPR_HOST_RCB_OVERLAY_ID_26:
2523 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2524 break;
2525 case IPR_HOST_RCB_OVERLAY_ID_30:
2526 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2527 break;
cf852037 2528 case IPR_HOST_RCB_OVERLAY_ID_1:
1da177e4 2529 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
1da177e4 2530 default:
a9cfca96 2531 ipr_log_generic_error(ioa_cfg, hostrcb);
1da177e4
LT		 2532 break;
2533 }
2534}
2535
2536/**
2537 * ipr_process_error - Op done function for an adapter error log.
2538 * @ipr_cmd: ipr command struct
2539 *
2540 * This function is the op done function for an error log host
2541 * controlled async from the adapter. It will log the error and
2542 * send the HCAM back to the adapter.
2543 *
2544 * Return value:
2545 * none
2546 **/
2547static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2548{
2549 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2550 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 2551 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4565e370
WB		 2552 u32 fd_ioasc;
2553
2554 if (ioa_cfg->sis64)
2555 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2556 else
2557 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4
LT		 2558
2559 list_del(&hostrcb->queue);
05a6538a 2560 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 2561
2562 if (!ioasc) {
2563 ipr_handle_log_data(ioa_cfg, hostrcb);
65f56475
BK		 2564 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2565 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
1da177e4
LT		 2566 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
2567 dev_err(&ioa_cfg->pdev->dev,
2568 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2569 }
2570
2571 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2572}
2573
2574/**
2575 * ipr_timeout - An internally generated op has timed out.
2576 * @ipr_cmd: ipr command struct
2577 *
2578 * This function blocks host requests and initiates an
2579 * adapter reset.
2580 *
2581 * Return value:
2582 * none
2583 **/
2584static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2585{
2586 unsigned long lock_flags = 0;
2587 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2588
2589 ENTER;
2590 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2591
2592 ioa_cfg->errors_logged++;
2593 dev_err(&ioa_cfg->pdev->dev,
2594 "Adapter being reset due to command timeout.\n");
2595
2596 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2597 ioa_cfg->sdt_state = GET_DUMP;
2598
2599 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2600 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2601
2602 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2603 LEAVE;
2604}
2605
2606/**
2607 * ipr_oper_timeout - Adapter timed out transitioning to operational
2608 * @ipr_cmd: ipr command struct
2609 *
2610 * This function blocks host requests and initiates an
2611 * adapter reset.
2612 *
2613 * Return value:
2614 * none
2615 **/
2616static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2617{
2618 unsigned long lock_flags = 0;
2619 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2620
2621 ENTER;
2622 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2623
2624 ioa_cfg->errors_logged++;
2625 dev_err(&ioa_cfg->pdev->dev,
2626 "Adapter timed out transitioning to operational.\n");
2627
2628 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2629 ioa_cfg->sdt_state = GET_DUMP;
2630
2631 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2632 if (ipr_fastfail)
2633 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2634 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2635 }
2636
2637 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2638 LEAVE;
2639}
2640
1da177e4
LT		 2641/**
2642 * ipr_find_ses_entry - Find matching SES in SES table
2643 * @res: resource entry struct of SES
2644 *
2645 * Return value:
2646 * pointer to SES table entry / NULL on failure
2647 **/
2648static const struct ipr_ses_table_entry *
2649ipr_find_ses_entry(struct ipr_resource_entry *res)
2650{
2651 int i, j, matches;
3e7ebdfa 2652 struct ipr_std_inq_vpids *vpids;
1da177e4
LT		 2653 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2654
2655 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2656 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2657 if (ste->compare_product_id_byte[j] == 'X') {
3e7ebdfa
WB		 2658 vpids = &res->std_inq_data.vpids;
2659 if (vpids->product_id[j] == ste->product_id[j])
1da177e4
LT		 2660 matches++;
2661 else
2662 break;
2663 } else
2664 matches++;
2665 }
2666
2667 if (matches == IPR_PROD_ID_LEN)
2668 return ste;
2669 }
2670
2671 return NULL;
2672}
2673
2674/**
2675 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2676 * @ioa_cfg: ioa config struct
2677 * @bus: SCSI bus
2678 * @bus_width: bus width
2679 *
2680 * Return value:
2681 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2682 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2683 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2684 * max 160MHz = max 320MB/sec).
2685 **/
2686static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2687{
2688 struct ipr_resource_entry *res;
2689 const struct ipr_ses_table_entry *ste;
2690 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2691
2692 /* Loop through each config table entry in the config table buffer */
2693 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 2694 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
1da177e4
LT		 2695 continue;
2696
3e7ebdfa 2697 if (bus != res->bus)
1da177e4
LT		 2698 continue;
2699
2700 if (!(ste = ipr_find_ses_entry(res)))
2701 continue;
2702
2703 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2704 }
2705
2706 return max_xfer_rate;
2707}
2708
2709/**
2710 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2711 * @ioa_cfg: ioa config struct
2712 * @max_delay: max delay in micro-seconds to wait
2713 *
2714 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2715 *
2716 * Return value:
2717 * 0 on success / other on failure
2718 **/
2719static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2720{
2721 volatile u32 pcii_reg;
2722 int delay = 1;
2723
2724 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2725 while (delay < max_delay) {
2726 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2727
2728 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2729 return 0;
2730
2731 /* udelay cannot be used if delay is more than a few milliseconds */
2732 if ((delay / 1000) > MAX_UDELAY_MS)
2733 mdelay(delay / 1000);
2734 else
2735 udelay(delay);
2736
2737 delay += delay;
2738 }
2739 return -EIO;
2740}
2741
dcbad00e
WB		 2742/**
2743 * ipr_get_sis64_dump_data_section - Dump IOA memory
2744 * @ioa_cfg: ioa config struct
2745 * @start_addr: adapter address to dump
2746 * @dest: destination kernel buffer
2747 * @length_in_words: length to dump in 4 byte words
2748 *
2749 * Return value:
2750 * 0 on success
2751 **/
2752static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2753 u32 start_addr,
2754 __be32 *dest, u32 length_in_words)
2755{
2756 int i;
2757
2758 for (i = 0; i < length_in_words; i++) {
2759 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2760 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2761 dest++;
2762 }
2763
2764 return 0;
2765}
2766
1da177e4
LT		 2767/**
2768 * ipr_get_ldump_data_section - Dump IOA memory
2769 * @ioa_cfg: ioa config struct
2770 * @start_addr: adapter address to dump
2771 * @dest: destination kernel buffer
2772 * @length_in_words: length to dump in 4 byte words
2773 *
2774 * Return value:
2775 * 0 on success / -EIO on failure
2776 **/
2777static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2778 u32 start_addr,
2779 __be32 *dest, u32 length_in_words)
2780{
2781 volatile u32 temp_pcii_reg;
2782 int i, delay = 0;
2783
dcbad00e
WB		 2784 if (ioa_cfg->sis64)
2785 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2786 dest, length_in_words);
2787
1da177e4
LT		 2788 /* Write IOA interrupt reg starting LDUMP state */
2789 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
214777ba 2790 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2791
2792 /* Wait for IO debug acknowledge */
2793 if (ipr_wait_iodbg_ack(ioa_cfg,
2794 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2795 dev_err(&ioa_cfg->pdev->dev,
2796 "IOA dump long data transfer timeout\n");
2797 return -EIO;
2798 }
2799
2800 /* Signal LDUMP interlocked - clear IO debug ack */
2801 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2802 ioa_cfg->regs.clr_interrupt_reg);
2803
2804 /* Write Mailbox with starting address */
2805 writel(start_addr, ioa_cfg->ioa_mailbox);
2806
2807 /* Signal address valid - clear IOA Reset alert */
2808 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2809 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2810
2811 for (i = 0; i < length_in_words; i++) {
2812 /* Wait for IO debug acknowledge */
2813 if (ipr_wait_iodbg_ack(ioa_cfg,
2814 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2815 dev_err(&ioa_cfg->pdev->dev,
2816 "IOA dump short data transfer timeout\n");
2817 return -EIO;
2818 }
2819
2820 /* Read data from mailbox and increment destination pointer */
2821 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2822 dest++;
2823
2824 /* For all but the last word of data, signal data received */
2825 if (i < (length_in_words - 1)) {
2826 /* Signal dump data received - Clear IO debug Ack */
2827 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2828 ioa_cfg->regs.clr_interrupt_reg);
2829 }
2830 }
2831
2832 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2833 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2834 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2835
2836 writel(IPR_UPROCI_IO_DEBUG_ALERT,
214777ba 2837 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2838
2839 /* Signal dump data received - Clear IO debug Ack */
2840 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2841 ioa_cfg->regs.clr_interrupt_reg);
2842
2843 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2844 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2845 temp_pcii_reg =
214777ba 2846 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
1da177e4
LT		 2847
2848 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2849 return 0;
2850
2851 udelay(10);
2852 delay += 10;
2853 }
2854
2855 return 0;
2856}
2857
2858#ifdef CONFIG_SCSI_IPR_DUMP
2859/**
2860 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2861 * @ioa_cfg: ioa config struct
2862 * @pci_address: adapter address
2863 * @length: length of data to copy
2864 *
2865 * Copy data from PCI adapter to kernel buffer.
2866 * Note: length MUST be a 4 byte multiple
2867 * Return value:
2868 * 0 on success / other on failure
2869 **/
2870static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2871 unsigned long pci_address, u32 length)
2872{
2873 int bytes_copied = 0;
4d4dd706 2874 int cur_len, rc, rem_len, rem_page_len, max_dump_size;
1da177e4
LT		 2875 __be32 *page;
2876 unsigned long lock_flags = 0;
2877 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2878
4d4dd706
KSS		 2879 if (ioa_cfg->sis64)
2880 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2881 else
2882 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2883
1da177e4 2884 while (bytes_copied < length &&
4d4dd706 2885 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) {
1da177e4
LT		 2886 if (ioa_dump->page_offset >= PAGE_SIZE ||
2887 ioa_dump->page_offset == 0) {
2888 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2889
2890 if (!page) {
2891 ipr_trace;
2892 return bytes_copied;
2893 }
2894
2895 ioa_dump->page_offset = 0;
2896 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2897 ioa_dump->next_page_index++;
2898 } else
2899 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2900
2901 rem_len = length - bytes_copied;
2902 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2903 cur_len = min(rem_len, rem_page_len);
2904
2905 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2906 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2907 rc = -EIO;
2908 } else {
2909 rc = ipr_get_ldump_data_section(ioa_cfg,
2910 pci_address + bytes_copied,
2911 &page[ioa_dump->page_offset / 4],
2912 (cur_len / sizeof(u32)));
2913 }
2914 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2915
2916 if (!rc) {
2917 ioa_dump->page_offset += cur_len;
2918 bytes_copied += cur_len;
2919 } else {
2920 ipr_trace;
2921 break;
2922 }
2923 schedule();
2924 }
2925
2926 return bytes_copied;
2927}
2928
2929/**
2930 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2931 * @hdr: dump entry header struct
2932 *
2933 * Return value:
2934 * nothing
2935 **/
2936static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2937{
2938 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2939 hdr->num_elems = 1;
2940 hdr->offset = sizeof(*hdr);
2941 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2942}
2943
2944/**
2945 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2946 * @ioa_cfg: ioa config struct
2947 * @driver_dump: driver dump struct
2948 *
2949 * Return value:
2950 * nothing
2951 **/
2952static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2953 struct ipr_driver_dump *driver_dump)
2954{
2955 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2956
2957 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2958 driver_dump->ioa_type_entry.hdr.len =
2959 sizeof(struct ipr_dump_ioa_type_entry) -
2960 sizeof(struct ipr_dump_entry_header);
2961 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2962 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2963 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2964 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2965 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2966 ucode_vpd->minor_release[1];
2967 driver_dump->hdr.num_entries++;
2968}
2969
2970/**
2971 * ipr_dump_version_data - Fill in the driver version in the dump.
2972 * @ioa_cfg: ioa config struct
2973 * @driver_dump: driver dump struct
2974 *
2975 * Return value:
2976 * nothing
2977 **/
2978static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2979 struct ipr_driver_dump *driver_dump)
2980{
2981 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2982 driver_dump->version_entry.hdr.len =
2983 sizeof(struct ipr_dump_version_entry) -
2984 sizeof(struct ipr_dump_entry_header);
2985 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2986 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2987 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
2988 driver_dump->hdr.num_entries++;
2989}
2990
2991/**
2992 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
2993 * @ioa_cfg: ioa config struct
2994 * @driver_dump: driver dump struct
2995 *
2996 * Return value:
2997 * nothing
2998 **/
2999static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
3000 struct ipr_driver_dump *driver_dump)
3001{
3002 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
3003 driver_dump->trace_entry.hdr.len =
3004 sizeof(struct ipr_dump_trace_entry) -
3005 sizeof(struct ipr_dump_entry_header);
3006 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3007 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
3008 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
3009 driver_dump->hdr.num_entries++;
3010}
3011
3012/**
3013 * ipr_dump_location_data - Fill in the IOA location in the dump.
3014 * @ioa_cfg: ioa config struct
3015 * @driver_dump: driver dump struct
3016 *
3017 * Return value:
3018 * nothing
3019 **/
3020static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
3021 struct ipr_driver_dump *driver_dump)
3022{
3023 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
3024 driver_dump->location_entry.hdr.len =
3025 sizeof(struct ipr_dump_location_entry) -
3026 sizeof(struct ipr_dump_entry_header);
3027 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3028 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
71610f55 3029 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
1da177e4
LT		 3030 driver_dump->hdr.num_entries++;
3031}
3032
3033/**
3034 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
3035 * @ioa_cfg: ioa config struct
3036 * @dump: dump struct
3037 *
3038 * Return value:
3039 * nothing
3040 **/
3041static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
3042{
3043 unsigned long start_addr, sdt_word;
3044 unsigned long lock_flags = 0;
3045 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
3046 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
4d4dd706
KSS		 3047 u32 num_entries, max_num_entries, start_off, end_off;
3048 u32 max_dump_size, bytes_to_copy, bytes_copied, rc;
1da177e4 3049 struct ipr_sdt *sdt;
dcbad00e 3050 int valid = 1;
1da177e4
LT		 3051 int i;
3052
3053 ENTER;
3054
3055 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3056
41e9a696 3057 if (ioa_cfg->sdt_state != READ_DUMP) {
1da177e4
LT		 3058 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3059 return;
3060 }
3061
110def85
WB		 3062 if (ioa_cfg->sis64) {
3063 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3064 ssleep(IPR_DUMP_DELAY_SECONDS);
3065 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3066 }
3067
1da177e4
LT		 3068 start_addr = readl(ioa_cfg->ioa_mailbox);
3069
dcbad00e 3070 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
1da177e4
LT		 3071 dev_err(&ioa_cfg->pdev->dev,
3072 "Invalid dump table format: %lx\n", start_addr);
3073 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3074 return;
3075 }
3076
3077 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
3078
3079 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
3080
3081 /* Initialize the overall dump header */
3082 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
3083 driver_dump->hdr.num_entries = 1;
3084 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
3085 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
3086 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
3087 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
3088
3089 ipr_dump_version_data(ioa_cfg, driver_dump);
3090 ipr_dump_location_data(ioa_cfg, driver_dump);
3091 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
3092 ipr_dump_trace_data(ioa_cfg, driver_dump);
3093
3094 /* Update dump_header */
3095 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
3096
3097 /* IOA Dump entry */
3098 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
1da177e4
LT		 3099 ioa_dump->hdr.len = 0;
3100 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3101 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
3102
3103 /* First entries in sdt are actually a list of dump addresses and
3104 lengths to gather the real dump data. sdt represents the pointer
3105 to the ioa generated dump table. Dump data will be extracted based
3106 on entries in this table */
3107 sdt = &ioa_dump->sdt;
3108
4d4dd706
KSS		 3109 if (ioa_cfg->sis64) {
3110 max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES;
3111 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
3112 } else {
3113 max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES;
3114 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
3115 }
3116
3117 bytes_to_copy = offsetof(struct ipr_sdt, entry) +
3118 (max_num_entries * sizeof(struct ipr_sdt_entry));
1da177e4 3119 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
4d4dd706 3120 bytes_to_copy / sizeof(__be32));
1da177e4
LT		 3121
3122 /* Smart Dump table is ready to use and the first entry is valid */
dcbad00e
WB		 3123 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
3124 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 3125 dev_err(&ioa_cfg->pdev->dev,
3126 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
3127 rc, be32_to_cpu(sdt->hdr.state));
3128 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
3129 ioa_cfg->sdt_state = DUMP_OBTAINED;
3130 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3131 return;
3132 }
3133
3134 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
3135
4d4dd706
KSS		 3136 if (num_entries > max_num_entries)
3137 num_entries = max_num_entries;
3138
3139 /* Update dump length to the actual data to be copied */
3140 dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header);
3141 if (ioa_cfg->sis64)
3142 dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry);
3143 else
3144 dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry);
1da177e4
LT		 3145
3146 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3147
3148 for (i = 0; i < num_entries; i++) {
4d4dd706 3149 if (ioa_dump->hdr.len > max_dump_size) {
1da177e4
LT		 3150 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3151 break;
3152 }
3153
3154 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
dcbad00e
WB		 3155 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
3156 if (ioa_cfg->sis64)
3157 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
3158 else {
3159 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
3160 end_off = be32_to_cpu(sdt->entry[i].end_token);
3161
3162 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
3163 bytes_to_copy = end_off - start_off;
3164 else
3165 valid = 0;
3166 }
3167 if (valid) {
4d4dd706 3168 if (bytes_to_copy > max_dump_size) {
1da177e4
LT		 3169 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
3170 continue;
3171 }
3172
3173 /* Copy data from adapter to driver buffers */
3174 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
3175 bytes_to_copy);
3176
3177 ioa_dump->hdr.len += bytes_copied;
3178
3179 if (bytes_copied != bytes_to_copy) {
3180 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3181 break;
3182 }
3183 }
3184 }
3185 }
3186
3187 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3188
3189 /* Update dump_header */
3190 driver_dump->hdr.len += ioa_dump->hdr.len;
3191 wmb();
3192 ioa_cfg->sdt_state = DUMP_OBTAINED;
3193 LEAVE;
3194}
3195
3196#else
203fa3fe 3197#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while (0)
1da177e4
LT		 3198#endif
3199
3200/**
3201 * ipr_release_dump - Free adapter dump memory
3202 * @kref: kref struct
3203 *
3204 * Return value:
3205 * nothing
3206 **/
3207static void ipr_release_dump(struct kref *kref)
3208{
203fa3fe 3209 struct ipr_dump *dump = container_of(kref, struct ipr_dump, kref);
1da177e4
LT		 3210 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3211 unsigned long lock_flags = 0;
3212 int i;
3213
3214 ENTER;
3215 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3216 ioa_cfg->dump = NULL;
3217 ioa_cfg->sdt_state = INACTIVE;
3218 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3219
3220 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3221 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3222
4d4dd706 3223 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 3224 kfree(dump);
3225 LEAVE;
3226}
3227
3228/**
3229 * ipr_worker_thread - Worker thread
c4028958 3230 * @work: ioa config struct
1da177e4
LT		 3231 *
3232 * Called at task level from a work thread. This function takes care
3233 * of adding and removing device from the mid-layer as configuration
3234 * changes are detected by the adapter.
3235 *
3236 * Return value:
3237 * nothing
3238 **/
c4028958 3239static void ipr_worker_thread(struct work_struct *work)
1da177e4
LT		 3240{
3241 unsigned long lock_flags;
3242 struct ipr_resource_entry *res;
3243 struct scsi_device *sdev;
3244 struct ipr_dump *dump;
c4028958
DH		 3245 struct ipr_ioa_cfg *ioa_cfg =
3246 container_of(work, struct ipr_ioa_cfg, work_q);
1da177e4
LT		 3247 u8 bus, target, lun;
3248 int did_work;
3249
3250 ENTER;
3251 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3252
41e9a696 3253 if (ioa_cfg->sdt_state == READ_DUMP) {
1da177e4
LT		 3254 dump = ioa_cfg->dump;
3255 if (!dump) {
3256 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3257 return;
3258 }
3259 kref_get(&dump->kref);
3260 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3261 ipr_get_ioa_dump(ioa_cfg, dump);
3262 kref_put(&dump->kref, ipr_release_dump);
3263
3264 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4c647e90 3265 if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout)
1da177e4
LT		 3266 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3267 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3268 return;
3269 }
3270
3271restart:
3272 do {
3273 did_work = 0;
f688f96d 3274 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
1da177e4
LT		 3275 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3276 return;
3277 }
3278
3279 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3280 if (res->del_from_ml && res->sdev) {
3281 did_work = 1;
3282 sdev = res->sdev;
3283 if (!scsi_device_get(sdev)) {
5767a1c4
KSS		 3284 if (!res->add_to_ml)
3285 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3286 else
3287 res->del_from_ml = 0;
1da177e4
LT		 3288 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3289 scsi_remove_device(sdev);
3290 scsi_device_put(sdev);
3291 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3292 }
3293 break;
3294 }
3295 }
203fa3fe 3296 } while (did_work);
1da177e4
LT		 3297
3298 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3299 if (res->add_to_ml) {
3e7ebdfa
WB		 3300 bus = res->bus;
3301 target = res->target;
3302 lun = res->lun;
1121b794 3303 res->add_to_ml = 0;
1da177e4
LT		 3304 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3305 scsi_add_device(ioa_cfg->host, bus, target, lun);
3306 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3307 goto restart;
3308 }
3309 }
3310
f688f96d 3311 ioa_cfg->scan_done = 1;
1da177e4 3312 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
ee959b00 3313 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
1da177e4
LT		 3314 LEAVE;
3315}
3316
3317#ifdef CONFIG_SCSI_IPR_TRACE
3318/**
3319 * ipr_read_trace - Dump the adapter trace
2c3c8bea 3320 * @filp: open sysfs file
1da177e4 3321 * @kobj: kobject struct
91a69029 3322 * @bin_attr: bin_attribute struct
1da177e4
LT		 3323 * @buf: buffer
3324 * @off: offset
3325 * @count: buffer size
3326 *
3327 * Return value:
3328 * number of bytes printed to buffer
3329 **/
2c3c8bea 3330static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
91a69029
ZR		 3331 struct bin_attribute *bin_attr,
3332 char *buf, loff_t off, size_t count)
1da177e4 3333{
ee959b00
TJ		 3334 struct device *dev = container_of(kobj, struct device, kobj);
3335 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3336 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3337 unsigned long lock_flags = 0;
d777aaf3 3338 ssize_t ret;
1da177e4
LT		 3339
3340 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3341 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3342 IPR_TRACE_SIZE);
1da177e4 3343 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3344
3345 return ret;
1da177e4
LT		 3346}
3347
3348static struct bin_attribute ipr_trace_attr = {
3349 .attr = {
3350 .name = "trace",
3351 .mode = S_IRUGO,
3352 },
3353 .size = 0,
3354 .read = ipr_read_trace,
3355};
3356#endif
3357
3358/**
3359 * ipr_show_fw_version - Show the firmware version
ee959b00
TJ		 3360 * @dev: class device struct
3361 * @buf: buffer
1da177e4
LT		 3362 *
3363 * Return value:
3364 * number of bytes printed to buffer
3365 **/
ee959b00
TJ		 3366static ssize_t ipr_show_fw_version(struct device *dev,
3367 struct device_attribute *attr, char *buf)
1da177e4 3368{
ee959b00 3369 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3370 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3371 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3372 unsigned long lock_flags = 0;
3373 int len;
3374
3375 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3376 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3377 ucode_vpd->major_release, ucode_vpd->card_type,
3378 ucode_vpd->minor_release[0],
3379 ucode_vpd->minor_release[1]);
3380 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3381 return len;
3382}
3383
ee959b00 3384static struct device_attribute ipr_fw_version_attr = {
1da177e4
LT		 3385 .attr = {
3386 .name = "fw_version",
3387 .mode = S_IRUGO,
3388 },
3389 .show = ipr_show_fw_version,
3390};
3391
3392/**
3393 * ipr_show_log_level - Show the adapter's error logging level
ee959b00
TJ		 3394 * @dev: class device struct
3395 * @buf: buffer
1da177e4
LT		 3396 *
3397 * Return value:
3398 * number of bytes printed to buffer
3399 **/
ee959b00
TJ		 3400static ssize_t ipr_show_log_level(struct device *dev,
3401 struct device_attribute *attr, char *buf)
1da177e4 3402{
ee959b00 3403 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3404 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3405 unsigned long lock_flags = 0;
3406 int len;
3407
3408 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3409 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3410 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3411 return len;
3412}
3413
3414/**
3415 * ipr_store_log_level - Change the adapter's error logging level
ee959b00
TJ		 3416 * @dev: class device struct
3417 * @buf: buffer
1da177e4
LT		 3418 *
3419 * Return value:
3420 * number of bytes printed to buffer
3421 **/
ee959b00 3422static ssize_t ipr_store_log_level(struct device *dev,
203fa3fe 3423 struct device_attribute *attr,
1da177e4
LT		 3424 const char *buf, size_t count)
3425{
ee959b00 3426 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3427 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3428 unsigned long lock_flags = 0;
3429
3430 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3431 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3432 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3433 return strlen(buf);
3434}
3435
ee959b00 3436static struct device_attribute ipr_log_level_attr = {
1da177e4
LT		 3437 .attr = {
3438 .name = "log_level",
3439 .mode = S_IRUGO | S_IWUSR,
3440 },
3441 .show = ipr_show_log_level,
3442 .store = ipr_store_log_level
3443};
3444
3445/**
3446 * ipr_store_diagnostics - IOA Diagnostics interface
ee959b00
TJ		 3447 * @dev: device struct
3448 * @buf: buffer
3449 * @count: buffer size
1da177e4
LT		 3450 *
3451 * This function will reset the adapter and wait a reasonable
3452 * amount of time for any errors that the adapter might log.
3453 *
3454 * Return value:
3455 * count on success / other on failure
3456 **/
ee959b00
TJ		 3457static ssize_t ipr_store_diagnostics(struct device *dev,
3458 struct device_attribute *attr,
1da177e4
LT		 3459 const char *buf, size_t count)
3460{
ee959b00 3461 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3462 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3463 unsigned long lock_flags = 0;
3464 int rc = count;
3465
3466 if (!capable(CAP_SYS_ADMIN))
3467 return -EACCES;
3468
1da177e4 3469 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 3470 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 3471 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3472 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3473 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3474 }
3475
1da177e4
LT		 3476 ioa_cfg->errors_logged = 0;
3477 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3478
3479 if (ioa_cfg->in_reset_reload) {
3480 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3481 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3482
3483 /* Wait for a second for any errors to be logged */
3484 msleep(1000);
3485 } else {
3486 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3487 return -EIO;
3488 }
3489
3490 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3491 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3492 rc = -EIO;
3493 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3494
3495 return rc;
3496}
3497
ee959b00 3498static struct device_attribute ipr_diagnostics_attr = {
1da177e4
LT		 3499 .attr = {
3500 .name = "run_diagnostics",
3501 .mode = S_IWUSR,
3502 },
3503 .store = ipr_store_diagnostics
3504};
3505
f37eb54b
BK		 3506/**
3507 * ipr_show_adapter_state - Show the adapter's state
ee959b00
TJ		 3508 * @class_dev: device struct
3509 * @buf: buffer
f37eb54b
BK		 3510 *
3511 * Return value:
3512 * number of bytes printed to buffer
3513 **/
ee959b00
TJ		 3514static ssize_t ipr_show_adapter_state(struct device *dev,
3515 struct device_attribute *attr, char *buf)
f37eb54b 3516{
ee959b00 3517 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b
BK		 3518 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3519 unsigned long lock_flags = 0;
3520 int len;
3521
3522 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
56d6aa33 3523 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
f37eb54b
BK		 3524 len = snprintf(buf, PAGE_SIZE, "offline\n");
3525 else
3526 len = snprintf(buf, PAGE_SIZE, "online\n");
3527 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3528 return len;
3529}
3530
3531/**
3532 * ipr_store_adapter_state - Change adapter state
ee959b00
TJ		 3533 * @dev: device struct
3534 * @buf: buffer
3535 * @count: buffer size
f37eb54b
BK		 3536 *
3537 * This function will change the adapter's state.
3538 *
3539 * Return value:
3540 * count on success / other on failure
3541 **/
ee959b00
TJ		 3542static ssize_t ipr_store_adapter_state(struct device *dev,
3543 struct device_attribute *attr,
f37eb54b
BK		 3544 const char *buf, size_t count)
3545{
ee959b00 3546 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b
BK		 3547 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3548 unsigned long lock_flags;
56d6aa33 3549 int result = count, i;
f37eb54b
BK		 3550
3551 if (!capable(CAP_SYS_ADMIN))
3552 return -EACCES;
3553
3554 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
56d6aa33 3555 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead &&
3556 !strncmp(buf, "online", 6)) {
3557 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
3558 spin_lock(&ioa_cfg->hrrq[i]._lock);
3559 ioa_cfg->hrrq[i].ioa_is_dead = 0;
3560 spin_unlock(&ioa_cfg->hrrq[i]._lock);
3561 }
3562 wmb();
f37eb54b
BK		 3563 ioa_cfg->reset_retries = 0;
3564 ioa_cfg->in_ioa_bringdown = 0;
3565 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3566 }
3567 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3568 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3569
3570 return result;
3571}
3572
ee959b00 3573static struct device_attribute ipr_ioa_state_attr = {
f37eb54b 3574 .attr = {
49dd0961 3575 .name = "online_state",
f37eb54b
BK		 3576 .mode = S_IRUGO | S_IWUSR,
3577 },
3578 .show = ipr_show_adapter_state,
3579 .store = ipr_store_adapter_state
3580};
3581
1da177e4
LT		 3582/**
3583 * ipr_store_reset_adapter - Reset the adapter
ee959b00
TJ		 3584 * @dev: device struct
3585 * @buf: buffer
3586 * @count: buffer size
1da177e4
LT		 3587 *
3588 * This function will reset the adapter.
3589 *
3590 * Return value:
3591 * count on success / other on failure
3592 **/
ee959b00
TJ		 3593static ssize_t ipr_store_reset_adapter(struct device *dev,
3594 struct device_attribute *attr,
1da177e4
LT		 3595 const char *buf, size_t count)
3596{
ee959b00 3597 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3598 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3599 unsigned long lock_flags;
3600 int result = count;
3601
3602 if (!capable(CAP_SYS_ADMIN))
3603 return -EACCES;
3604
3605 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3606 if (!ioa_cfg->in_reset_reload)
3607 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3608 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3609 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3610
3611 return result;
3612}
3613
ee959b00 3614static struct device_attribute ipr_ioa_reset_attr = {
1da177e4
LT		 3615 .attr = {
3616 .name = "reset_host",
3617 .mode = S_IWUSR,
3618 },
3619 .store = ipr_store_reset_adapter
3620};
3621
b53d124a 3622static int ipr_iopoll(struct blk_iopoll *iop, int budget);
3623 /**
3624 * ipr_show_iopoll_weight - Show ipr polling mode
3625 * @dev: class device struct
3626 * @buf: buffer
3627 *
3628 * Return value:
3629 * number of bytes printed to buffer
3630 **/
3631static ssize_t ipr_show_iopoll_weight(struct device *dev,
3632 struct device_attribute *attr, char *buf)
3633{
3634 struct Scsi_Host *shost = class_to_shost(dev);
3635 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3636 unsigned long lock_flags = 0;
3637 int len;
3638
3639 spin_lock_irqsave(shost->host_lock, lock_flags);
3640 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->iopoll_weight);
3641 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3642
3643 return len;
3644}
3645
3646/**
3647 * ipr_store_iopoll_weight - Change the adapter's polling mode
3648 * @dev: class device struct
3649 * @buf: buffer
3650 *
3651 * Return value:
3652 * number of bytes printed to buffer
3653 **/
3654static ssize_t ipr_store_iopoll_weight(struct device *dev,
3655 struct device_attribute *attr,
3656 const char *buf, size_t count)
3657{
3658 struct Scsi_Host *shost = class_to_shost(dev);
3659 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3660 unsigned long user_iopoll_weight;
3661 unsigned long lock_flags = 0;
3662 int i;
3663
3664 if (!ioa_cfg->sis64) {
3665 dev_info(&ioa_cfg->pdev->dev, "blk-iopoll not supported on this adapter\n");
3666 return -EINVAL;
3667 }
3668 if (kstrtoul(buf, 10, &user_iopoll_weight))
3669 return -EINVAL;
3670
3671 if (user_iopoll_weight > 256) {
3672 dev_info(&ioa_cfg->pdev->dev, "Invalid blk-iopoll weight. It must be less than 256\n");
3673 return -EINVAL;
3674 }
3675
3676 if (user_iopoll_weight == ioa_cfg->iopoll_weight) {
3677 dev_info(&ioa_cfg->pdev->dev, "Current blk-iopoll weight has the same weight\n");
3678 return strlen(buf);
3679 }
3680
89f8b33c 3681 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 3682 for (i = 1; i < ioa_cfg->hrrq_num; i++)
3683 blk_iopoll_disable(&ioa_cfg->hrrq[i].iopoll);
3684 }
3685
3686 spin_lock_irqsave(shost->host_lock, lock_flags);
3687 ioa_cfg->iopoll_weight = user_iopoll_weight;
89f8b33c 3688 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 3689 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
3690 blk_iopoll_init(&ioa_cfg->hrrq[i].iopoll,
3691 ioa_cfg->iopoll_weight, ipr_iopoll);
3692 blk_iopoll_enable(&ioa_cfg->hrrq[i].iopoll);
3693 }
3694 }
3695 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3696
3697 return strlen(buf);
3698}
3699
3700static struct device_attribute ipr_iopoll_weight_attr = {
3701 .attr = {
3702 .name = "iopoll_weight",
3703 .mode = S_IRUGO | S_IWUSR,
3704 },
3705 .show = ipr_show_iopoll_weight,
3706 .store = ipr_store_iopoll_weight
3707};
3708
1da177e4
LT		 3709/**
3710 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3711 * @buf_len: buffer length
3712 *
3713 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3714 * list to use for microcode download
3715 *
3716 * Return value:
3717 * pointer to sglist / NULL on failure
3718 **/
3719static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3720{
3721 int sg_size, order, bsize_elem, num_elem, i, j;
3722 struct ipr_sglist *sglist;
3723 struct scatterlist *scatterlist;
3724 struct page *page;
3725
3726 /* Get the minimum size per scatter/gather element */
3727 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3728
3729 /* Get the actual size per element */
3730 order = get_order(sg_size);
3731
3732 /* Determine the actual number of bytes per element */
3733 bsize_elem = PAGE_SIZE * (1 << order);
3734
3735 /* Determine the actual number of sg entries needed */
3736 if (buf_len % bsize_elem)
3737 num_elem = (buf_len / bsize_elem) + 1;
3738 else
3739 num_elem = buf_len / bsize_elem;
3740
3741 /* Allocate a scatter/gather list for the DMA */
0bc42e35 3742 sglist = kzalloc(sizeof(struct ipr_sglist) +
1da177e4
LT		 3743 (sizeof(struct scatterlist) * (num_elem - 1)),
3744 GFP_KERNEL);
3745
3746 if (sglist == NULL) {
3747 ipr_trace;
3748 return NULL;
3749 }
3750
1da177e4 3751 scatterlist = sglist->scatterlist;
45711f1a 3752 sg_init_table(scatterlist, num_elem);
1da177e4
LT		 3753
3754 sglist->order = order;
3755 sglist->num_sg = num_elem;
3756
3757 /* Allocate a bunch of sg elements */
3758 for (i = 0; i < num_elem; i++) {
3759 page = alloc_pages(GFP_KERNEL, order);
3760 if (!page) {
3761 ipr_trace;
3762
3763 /* Free up what we already allocated */
3764 for (j = i - 1; j >= 0; j--)
45711f1a 3765 __free_pages(sg_page(&scatterlist[j]), order);
1da177e4
LT		 3766 kfree(sglist);
3767 return NULL;
3768 }
3769
642f1490 3770 sg_set_page(&scatterlist[i], page, 0, 0);
1da177e4
LT		 3771 }
3772
3773 return sglist;
3774}
3775
3776/**
3777 * ipr_free_ucode_buffer - Frees a microcode download buffer
3778 * @p_dnld: scatter/gather list pointer
3779 *
3780 * Free a DMA'able ucode download buffer previously allocated with
3781 * ipr_alloc_ucode_buffer
3782 *
3783 * Return value:
3784 * nothing
3785 **/
3786static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3787{
3788 int i;
3789
3790 for (i = 0; i < sglist->num_sg; i++)
45711f1a 3791 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
1da177e4
LT		 3792
3793 kfree(sglist);
3794}
3795
3796/**
3797 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3798 * @sglist: scatter/gather list pointer
3799 * @buffer: buffer pointer
3800 * @len: buffer length
3801 *
3802 * Copy a microcode image from a user buffer into a buffer allocated by
3803 * ipr_alloc_ucode_buffer
3804 *
3805 * Return value:
3806 * 0 on success / other on failure
3807 **/
3808static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3809 u8 *buffer, u32 len)
3810{
3811 int bsize_elem, i, result = 0;
3812 struct scatterlist *scatterlist;
3813 void *kaddr;
3814
3815 /* Determine the actual number of bytes per element */
3816 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3817
3818 scatterlist = sglist->scatterlist;
3819
3820 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
45711f1a
JA		 3821 struct page *page = sg_page(&scatterlist[i]);
3822
3823 kaddr = kmap(page);
1da177e4 3824 memcpy(kaddr, buffer, bsize_elem);
45711f1a 3825 kunmap(page);
1da177e4
LT		 3826
3827 scatterlist[i].length = bsize_elem;
3828
3829 if (result != 0) {
3830 ipr_trace;
3831 return result;
3832 }
3833 }
3834
3835 if (len % bsize_elem) {
45711f1a
JA		 3836 struct page *page = sg_page(&scatterlist[i]);
3837
3838 kaddr = kmap(page);
1da177e4 3839 memcpy(kaddr, buffer, len % bsize_elem);
45711f1a 3840 kunmap(page);
1da177e4
LT		 3841
3842 scatterlist[i].length = len % bsize_elem;
3843 }
3844
3845 sglist->buffer_len = len;
3846 return result;
3847}
3848
a32c055f
WB		 3849/**
3850 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3851 * @ipr_cmd: ipr command struct
3852 * @sglist: scatter/gather list
3853 *
3854 * Builds a microcode download IOA data list (IOADL).
3855 *
3856 **/
3857static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3858 struct ipr_sglist *sglist)
3859{
3860 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3861 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3862 struct scatterlist *scatterlist = sglist->scatterlist;
3863 int i;
3864
3865 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3866 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3867 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3868
3869 ioarcb->ioadl_len =
3870 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3871 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3872 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3873 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3874 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3875 }
3876
3877 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3878}
3879
1da177e4 3880/**
12baa420 3881 * ipr_build_ucode_ioadl - Build a microcode download IOADL
1da177e4
LT		 3882 * @ipr_cmd: ipr command struct
3883 * @sglist: scatter/gather list
1da177e4 3884 *
12baa420 3885 * Builds a microcode download IOA data list (IOADL).
1da177e4 3886 *
1da177e4 3887 **/
12baa420
BK		 3888static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3889 struct ipr_sglist *sglist)
1da177e4 3890{
1da177e4 3891 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 3892 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4
LT		 3893 struct scatterlist *scatterlist = sglist->scatterlist;
3894 int i;
3895
12baa420 3896 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
1da177e4 3897 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 3898 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3899
3900 ioarcb->ioadl_len =
1da177e4
LT		 3901 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3902
3903 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3904 ioadl[i].flags_and_data_len =
3905 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3906 ioadl[i].address =
3907 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3908 }
3909
12baa420
BK		 3910 ioadl[i-1].flags_and_data_len |=
3911 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3912}
3913
3914/**
3915 * ipr_update_ioa_ucode - Update IOA's microcode
3916 * @ioa_cfg: ioa config struct
3917 * @sglist: scatter/gather list
3918 *
3919 * Initiate an adapter reset to update the IOA's microcode
3920 *
3921 * Return value:
3922 * 0 on success / -EIO on failure
3923 **/
3924static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3925 struct ipr_sglist *sglist)
3926{
3927 unsigned long lock_flags;
3928
3929 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 3930 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 3931 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3932 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3933 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3934 }
12baa420
BK		 3935
3936 if (ioa_cfg->ucode_sglist) {
3937 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3938 dev_err(&ioa_cfg->pdev->dev,
3939 "Microcode download already in progress\n");
3940 return -EIO;
1da177e4 3941 }
12baa420 3942
d73341bf
AB		 3943 sglist->num_dma_sg = dma_map_sg(&ioa_cfg->pdev->dev,
3944 sglist->scatterlist, sglist->num_sg,
3945 DMA_TO_DEVICE);
12baa420
BK		 3946
3947 if (!sglist->num_dma_sg) {
3948 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3949 dev_err(&ioa_cfg->pdev->dev,
3950 "Failed to map microcode download buffer!\n");
1da177e4
LT		 3951 return -EIO;
3952 }
3953
12baa420
BK		 3954 ioa_cfg->ucode_sglist = sglist;
3955 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3956 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3957 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3958
3959 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3960 ioa_cfg->ucode_sglist = NULL;
3961 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4
LT		 3962 return 0;
3963}
3964
3965/**
3966 * ipr_store_update_fw - Update the firmware on the adapter
ee959b00
TJ		 3967 * @class_dev: device struct
3968 * @buf: buffer
3969 * @count: buffer size
1da177e4
LT		 3970 *
3971 * This function will update the firmware on the adapter.
3972 *
3973 * Return value:
3974 * count on success / other on failure
3975 **/
ee959b00
TJ		 3976static ssize_t ipr_store_update_fw(struct device *dev,
3977 struct device_attribute *attr,
3978 const char *buf, size_t count)
1da177e4 3979{
ee959b00 3980 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3981 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3982 struct ipr_ucode_image_header *image_hdr;
3983 const struct firmware *fw_entry;
3984 struct ipr_sglist *sglist;
1da177e4
LT		 3985 char fname[100];
3986 char *src;
3987 int len, result, dnld_size;
3988
3989 if (!capable(CAP_SYS_ADMIN))
3990 return -EACCES;
3991
3992 len = snprintf(fname, 99, "%s", buf);
3993 fname[len-1] = '\0';
3994
203fa3fe 3995 if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
1da177e4
LT		 3996 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3997 return -EIO;
3998 }
3999
4000 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
4001
1da177e4
LT		 4002 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
4003 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
4004 sglist = ipr_alloc_ucode_buffer(dnld_size);
4005
4006 if (!sglist) {
4007 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
4008 release_firmware(fw_entry);
4009 return -ENOMEM;
4010 }
4011
4012 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
4013
4014 if (result) {
4015 dev_err(&ioa_cfg->pdev->dev,
4016 "Microcode buffer copy to DMA buffer failed\n");
12baa420 4017 goto out;
1da177e4
LT		 4018 }
4019
14ed9cc7
WB		 4020 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
4021
12baa420 4022 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
1da177e4 4023
12baa420
BK		 4024 if (!result)
4025 result = count;
4026out:
1da177e4
LT		 4027 ipr_free_ucode_buffer(sglist);
4028 release_firmware(fw_entry);
12baa420 4029 return result;
1da177e4
LT		 4030}
4031
ee959b00 4032static struct device_attribute ipr_update_fw_attr = {
1da177e4
LT		 4033 .attr = {
4034 .name = "update_fw",
4035 .mode = S_IWUSR,
4036 },
4037 .store = ipr_store_update_fw
4038};
4039
75576bb9
WB		 4040/**
4041 * ipr_show_fw_type - Show the adapter's firmware type.
4042 * @dev: class device struct
4043 * @buf: buffer
4044 *
4045 * Return value:
4046 * number of bytes printed to buffer
4047 **/
4048static ssize_t ipr_show_fw_type(struct device *dev,
4049 struct device_attribute *attr, char *buf)
4050{
4051 struct Scsi_Host *shost = class_to_shost(dev);
4052 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4053 unsigned long lock_flags = 0;
4054 int len;
4055
4056 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4057 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
4058 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4059 return len;
4060}
4061
4062static struct device_attribute ipr_ioa_fw_type_attr = {
4063 .attr = {
4064 .name = "fw_type",
4065 .mode = S_IRUGO,
4066 },
4067 .show = ipr_show_fw_type
4068};
4069
ee959b00 4070static struct device_attribute *ipr_ioa_attrs[] = {
1da177e4
LT		 4071 &ipr_fw_version_attr,
4072 &ipr_log_level_attr,
4073 &ipr_diagnostics_attr,
f37eb54b 4074 &ipr_ioa_state_attr,
1da177e4
LT		 4075 &ipr_ioa_reset_attr,
4076 &ipr_update_fw_attr,
75576bb9 4077 &ipr_ioa_fw_type_attr,
b53d124a 4078 &ipr_iopoll_weight_attr,
1da177e4
LT		 4079 NULL,
4080};
4081
4082#ifdef CONFIG_SCSI_IPR_DUMP
4083/**
4084 * ipr_read_dump - Dump the adapter
2c3c8bea 4085 * @filp: open sysfs file
1da177e4 4086 * @kobj: kobject struct
91a69029 4087 * @bin_attr: bin_attribute struct
1da177e4
LT		 4088 * @buf: buffer
4089 * @off: offset
4090 * @count: buffer size
4091 *
4092 * Return value:
4093 * number of bytes printed to buffer
4094 **/
2c3c8bea 4095static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4096 struct bin_attribute *bin_attr,
4097 char *buf, loff_t off, size_t count)
1da177e4 4098{
ee959b00 4099 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4100 struct Scsi_Host *shost = class_to_shost(cdev);
4101 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4102 struct ipr_dump *dump;
4103 unsigned long lock_flags = 0;
4104 char *src;
4d4dd706 4105 int len, sdt_end;
1da177e4
LT		 4106 size_t rc = count;
4107
4108 if (!capable(CAP_SYS_ADMIN))
4109 return -EACCES;
4110
4111 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4112 dump = ioa_cfg->dump;
4113
4114 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
4115 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4116 return 0;
4117 }
4118 kref_get(&dump->kref);
4119 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4120
4121 if (off > dump->driver_dump.hdr.len) {
4122 kref_put(&dump->kref, ipr_release_dump);
4123 return 0;
4124 }
4125
4126 if (off + count > dump->driver_dump.hdr.len) {
4127 count = dump->driver_dump.hdr.len - off;
4128 rc = count;
4129 }
4130
4131 if (count && off < sizeof(dump->driver_dump)) {
4132 if (off + count > sizeof(dump->driver_dump))
4133 len = sizeof(dump->driver_dump) - off;
4134 else
4135 len = count;
4136 src = (u8 *)&dump->driver_dump + off;
4137 memcpy(buf, src, len);
4138 buf += len;
4139 off += len;
4140 count -= len;
4141 }
4142
4143 off -= sizeof(dump->driver_dump);
4144
4d4dd706
KSS		 4145 if (ioa_cfg->sis64)
4146 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4147 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
4148 sizeof(struct ipr_sdt_entry));
4149 else
4150 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4151 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
4152
4153 if (count && off < sdt_end) {
4154 if (off + count > sdt_end)
4155 len = sdt_end - off;
1da177e4
LT		 4156 else
4157 len = count;
4158 src = (u8 *)&dump->ioa_dump + off;
4159 memcpy(buf, src, len);
4160 buf += len;
4161 off += len;
4162 count -= len;
4163 }
4164
4d4dd706 4165 off -= sdt_end;
1da177e4
LT		 4166
4167 while (count) {
4168 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
4169 len = PAGE_ALIGN(off) - off;
4170 else
4171 len = count;
4172 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
4173 src += off & ~PAGE_MASK;
4174 memcpy(buf, src, len);
4175 buf += len;
4176 off += len;
4177 count -= len;
4178 }
4179
4180 kref_put(&dump->kref, ipr_release_dump);
4181 return rc;
4182}
4183
4184/**
4185 * ipr_alloc_dump - Prepare for adapter dump
4186 * @ioa_cfg: ioa config struct
4187 *
4188 * Return value:
4189 * 0 on success / other on failure
4190 **/
4191static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
4192{
4193 struct ipr_dump *dump;
4d4dd706 4194 __be32 **ioa_data;
1da177e4
LT		 4195 unsigned long lock_flags = 0;
4196
0bc42e35 4197 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
1da177e4
LT		 4198
4199 if (!dump) {
4200 ipr_err("Dump memory allocation failed\n");
4201 return -ENOMEM;
4202 }
4203
4d4dd706
KSS		 4204 if (ioa_cfg->sis64)
4205 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4206 else
4207 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4208
4209 if (!ioa_data) {
4210 ipr_err("Dump memory allocation failed\n");
4211 kfree(dump);
4212 return -ENOMEM;
4213 }
4214
4215 dump->ioa_dump.ioa_data = ioa_data;
4216
1da177e4
LT		 4217 kref_init(&dump->kref);
4218 dump->ioa_cfg = ioa_cfg;
4219
4220 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4221
4222 if (INACTIVE != ioa_cfg->sdt_state) {
4223 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4d4dd706 4224 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 4225 kfree(dump);
4226 return 0;
4227 }
4228
4229 ioa_cfg->dump = dump;
4230 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
56d6aa33 4231 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && !ioa_cfg->dump_taken) {
1da177e4
LT		 4232 ioa_cfg->dump_taken = 1;
4233 schedule_work(&ioa_cfg->work_q);
4234 }
4235 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4236
1da177e4
LT		 4237 return 0;
4238}
4239
4240/**
4241 * ipr_free_dump - Free adapter dump memory
4242 * @ioa_cfg: ioa config struct
4243 *
4244 * Return value:
4245 * 0 on success / other on failure
4246 **/
4247static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
4248{
4249 struct ipr_dump *dump;
4250 unsigned long lock_flags = 0;
4251
4252 ENTER;
4253
4254 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4255 dump = ioa_cfg->dump;
4256 if (!dump) {
4257 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4258 return 0;
4259 }
4260
4261 ioa_cfg->dump = NULL;
4262 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4263
4264 kref_put(&dump->kref, ipr_release_dump);
4265
4266 LEAVE;
4267 return 0;
4268}
4269
4270/**
4271 * ipr_write_dump - Setup dump state of adapter
2c3c8bea 4272 * @filp: open sysfs file
1da177e4 4273 * @kobj: kobject struct
91a69029 4274 * @bin_attr: bin_attribute struct
1da177e4
LT		 4275 * @buf: buffer
4276 * @off: offset
4277 * @count: buffer size
4278 *
4279 * Return value:
4280 * number of bytes printed to buffer
4281 **/
2c3c8bea 4282static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4283 struct bin_attribute *bin_attr,
4284 char *buf, loff_t off, size_t count)
1da177e4 4285{
ee959b00 4286 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4287 struct Scsi_Host *shost = class_to_shost(cdev);
4288 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4289 int rc;
4290
4291 if (!capable(CAP_SYS_ADMIN))
4292 return -EACCES;
4293
4294 if (buf[0] == '1')
4295 rc = ipr_alloc_dump(ioa_cfg);
4296 else if (buf[0] == '0')
4297 rc = ipr_free_dump(ioa_cfg);
4298 else
4299 return -EINVAL;
4300
4301 if (rc)
4302 return rc;
4303 else
4304 return count;
4305}
4306
4307static struct bin_attribute ipr_dump_attr = {
4308 .attr = {
4309 .name = "dump",
4310 .mode = S_IRUSR | S_IWUSR,
4311 },
4312 .size = 0,
4313 .read = ipr_read_dump,
4314 .write = ipr_write_dump
4315};
4316#else
4317static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4318#endif
4319
4320/**
4321 * ipr_change_queue_depth - Change the device's queue depth
4322 * @sdev: scsi device struct
4323 * @qdepth: depth to set
e881a172 4324 * @reason: calling context
1da177e4
LT		 4325 *
4326 * Return value:
4327 * actual depth set
4328 **/
db5ed4df 4329static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
1da177e4 4330{
35a39691
BK		 4331 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4332 struct ipr_resource_entry *res;
4333 unsigned long lock_flags = 0;
4334
4335 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4336 res = (struct ipr_resource_entry *)sdev->hostdata;
4337
4338 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4339 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4340 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4341
db5ed4df 4342 scsi_change_queue_depth(sdev, qdepth);
1da177e4
LT		 4343 return sdev->queue_depth;
4344}
4345
1da177e4
LT		 4346/**
4347 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4348 * @dev: device struct
46d74563 4349 * @attr: device attribute structure
1da177e4
LT		 4350 * @buf: buffer
4351 *
4352 * Return value:
4353 * number of bytes printed to buffer
4354 **/
10523b3b 4355static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 4356{
4357 struct scsi_device *sdev = to_scsi_device(dev);
4358 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4359 struct ipr_resource_entry *res;
4360 unsigned long lock_flags = 0;
4361 ssize_t len = -ENXIO;
4362
4363 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4364 res = (struct ipr_resource_entry *)sdev->hostdata;
4365 if (res)
3e7ebdfa 4366 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
1da177e4
LT		 4367 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4368 return len;
4369}
4370
4371static struct device_attribute ipr_adapter_handle_attr = {
4372 .attr = {
4373 .name = "adapter_handle",
4374 .mode = S_IRUSR,
4375 },
4376 .show = ipr_show_adapter_handle
4377};
4378
3e7ebdfa 4379/**
5adcbeb3
WB		 4380 * ipr_show_resource_path - Show the resource path or the resource address for
4381 * this device.
3e7ebdfa 4382 * @dev: device struct
46d74563 4383 * @attr: device attribute structure
3e7ebdfa
WB		 4384 * @buf: buffer
4385 *
4386 * Return value:
4387 * number of bytes printed to buffer
4388 **/
4389static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4390{
4391 struct scsi_device *sdev = to_scsi_device(dev);
4392 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4393 struct ipr_resource_entry *res;
4394 unsigned long lock_flags = 0;
4395 ssize_t len = -ENXIO;
4396 char buffer[IPR_MAX_RES_PATH_LENGTH];
4397
4398 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4399 res = (struct ipr_resource_entry *)sdev->hostdata;
5adcbeb3 4400 if (res && ioa_cfg->sis64)
3e7ebdfa 4401 len = snprintf(buf, PAGE_SIZE, "%s\n",
b3b3b407
BK		 4402 __ipr_format_res_path(res->res_path, buffer,
4403 sizeof(buffer)));
5adcbeb3
WB		 4404 else if (res)
4405 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4406 res->bus, res->target, res->lun);
4407
3e7ebdfa
WB		 4408 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4409 return len;
4410}
4411
4412static struct device_attribute ipr_resource_path_attr = {
4413 .attr = {
4414 .name = "resource_path",
75576bb9 4415 .mode = S_IRUGO,
3e7ebdfa
WB		 4416 },
4417 .show = ipr_show_resource_path
4418};
4419
46d74563
WB		 4420/**
4421 * ipr_show_device_id - Show the device_id for this device.
4422 * @dev: device struct
4423 * @attr: device attribute structure
4424 * @buf: buffer
4425 *
4426 * Return value:
4427 * number of bytes printed to buffer
4428 **/
4429static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4430{
4431 struct scsi_device *sdev = to_scsi_device(dev);
4432 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4433 struct ipr_resource_entry *res;
4434 unsigned long lock_flags = 0;
4435 ssize_t len = -ENXIO;
4436
4437 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4438 res = (struct ipr_resource_entry *)sdev->hostdata;
4439 if (res && ioa_cfg->sis64)
4440 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->dev_id);
4441 else if (res)
4442 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4443
4444 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4445 return len;
4446}
4447
4448static struct device_attribute ipr_device_id_attr = {
4449 .attr = {
4450 .name = "device_id",
4451 .mode = S_IRUGO,
4452 },
4453 .show = ipr_show_device_id
4454};
4455
75576bb9
WB		 4456/**
4457 * ipr_show_resource_type - Show the resource type for this device.
4458 * @dev: device struct
46d74563 4459 * @attr: device attribute structure
75576bb9
WB		 4460 * @buf: buffer
4461 *
4462 * Return value:
4463 * number of bytes printed to buffer
4464 **/
4465static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4466{
4467 struct scsi_device *sdev = to_scsi_device(dev);
4468 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4469 struct ipr_resource_entry *res;
4470 unsigned long lock_flags = 0;
4471 ssize_t len = -ENXIO;
4472
4473 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4474 res = (struct ipr_resource_entry *)sdev->hostdata;
4475
4476 if (res)
4477 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4478
4479 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4480 return len;
4481}
4482
4483static struct device_attribute ipr_resource_type_attr = {
4484 .attr = {
4485 .name = "resource_type",
4486 .mode = S_IRUGO,
4487 },
4488 .show = ipr_show_resource_type
4489};
4490
1da177e4
LT		 4491static struct device_attribute *ipr_dev_attrs[] = {
4492 &ipr_adapter_handle_attr,
3e7ebdfa 4493 &ipr_resource_path_attr,
46d74563 4494 &ipr_device_id_attr,
75576bb9 4495 &ipr_resource_type_attr,
1da177e4
LT		 4496 NULL,
4497};
4498
4499/**
4500 * ipr_biosparam - Return the HSC mapping
4501 * @sdev: scsi device struct
4502 * @block_device: block device pointer
4503 * @capacity: capacity of the device
4504 * @parm: Array containing returned HSC values.
4505 *
4506 * This function generates the HSC parms that fdisk uses.
4507 * We want to make sure we return something that places partitions
4508 * on 4k boundaries for best performance with the IOA.
4509 *
4510 * Return value:
4511 * 0 on success
4512 **/
4513static int ipr_biosparam(struct scsi_device *sdev,
4514 struct block_device *block_device,
4515 sector_t capacity, int *parm)
4516{
4517 int heads, sectors;
4518 sector_t cylinders;
4519
4520 heads = 128;
4521 sectors = 32;
4522
4523 cylinders = capacity;
4524 sector_div(cylinders, (128 * 32));
4525
4526 /* return result */
4527 parm[0] = heads;
4528 parm[1] = sectors;
4529 parm[2] = cylinders;
4530
4531 return 0;
4532}
4533
35a39691
BK		 4534/**
4535 * ipr_find_starget - Find target based on bus/target.
4536 * @starget: scsi target struct
4537 *
4538 * Return value:
4539 * resource entry pointer if found / NULL if not found
4540 **/
4541static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4542{
4543 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4544 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4545 struct ipr_resource_entry *res;
4546
4547 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 4548 if ((res->bus == starget->channel) &&
0ee1d714 4549 (res->target == starget->id)) {
35a39691
BK		 4550 return res;
4551 }
4552 }
4553
4554 return NULL;
4555}
4556
4557static struct ata_port_info sata_port_info;
4558
4559/**
4560 * ipr_target_alloc - Prepare for commands to a SCSI target
4561 * @starget: scsi target struct
4562 *
4563 * If the device is a SATA device, this function allocates an
4564 * ATA port with libata, else it does nothing.
4565 *
4566 * Return value:
4567 * 0 on success / non-0 on failure
4568 **/
4569static int ipr_target_alloc(struct scsi_target *starget)
4570{
4571 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4572 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4573 struct ipr_sata_port *sata_port;
4574 struct ata_port *ap;
4575 struct ipr_resource_entry *res;
4576 unsigned long lock_flags;
4577
4578 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4579 res = ipr_find_starget(starget);
4580 starget->hostdata = NULL;
4581
4582 if (res && ipr_is_gata(res)) {
4583 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4584 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4585 if (!sata_port)
4586 return -ENOMEM;
4587
4588 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4589 if (ap) {
4590 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4591 sata_port->ioa_cfg = ioa_cfg;
4592 sata_port->ap = ap;
4593 sata_port->res = res;
4594
4595 res->sata_port = sata_port;
4596 ap->private_data = sata_port;
4597 starget->hostdata = sata_port;
4598 } else {
4599 kfree(sata_port);
4600 return -ENOMEM;
4601 }
4602 }
4603 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4604
4605 return 0;
4606}
4607
4608/**
4609 * ipr_target_destroy - Destroy a SCSI target
4610 * @starget: scsi target struct
4611 *
4612 * If the device was a SATA device, this function frees the libata
4613 * ATA port, else it does nothing.
4614 *
4615 **/
4616static void ipr_target_destroy(struct scsi_target *starget)
4617{
4618 struct ipr_sata_port *sata_port = starget->hostdata;
3e7ebdfa
WB		 4619 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4620 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4621
4622 if (ioa_cfg->sis64) {
0ee1d714
BK		 4623 if (!ipr_find_starget(starget)) {
4624 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4625 clear_bit(starget->id, ioa_cfg->array_ids);
4626 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4627 clear_bit(starget->id, ioa_cfg->vset_ids);
4628 else if (starget->channel == 0)
4629 clear_bit(starget->id, ioa_cfg->target_ids);
4630 }
3e7ebdfa 4631 }
35a39691
BK		 4632
4633 if (sata_port) {
4634 starget->hostdata = NULL;
4635 ata_sas_port_destroy(sata_port->ap);
4636 kfree(sata_port);
4637 }
4638}
4639
4640/**
4641 * ipr_find_sdev - Find device based on bus/target/lun.
4642 * @sdev: scsi device struct
4643 *
4644 * Return value:
4645 * resource entry pointer if found / NULL if not found
4646 **/
4647static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4648{
4649 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4650 struct ipr_resource_entry *res;
4651
4652 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa
WB		 4653 if ((res->bus == sdev->channel) &&
4654 (res->target == sdev->id) &&
4655 (res->lun == sdev->lun))
35a39691
BK		 4656 return res;
4657 }
4658
4659 return NULL;
4660}
4661
1da177e4
LT		 4662/**
4663 * ipr_slave_destroy - Unconfigure a SCSI device
4664 * @sdev: scsi device struct
4665 *
4666 * Return value:
4667 * nothing
4668 **/
4669static void ipr_slave_destroy(struct scsi_device *sdev)
4670{
4671 struct ipr_resource_entry *res;
4672 struct ipr_ioa_cfg *ioa_cfg;
4673 unsigned long lock_flags = 0;
4674
4675 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4676
4677 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4678 res = (struct ipr_resource_entry *) sdev->hostdata;
4679 if (res) {
35a39691 4680 if (res->sata_port)
3e4ec344 4681 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
1da177e4
LT		 4682 sdev->hostdata = NULL;
4683 res->sdev = NULL;
35a39691 4684 res->sata_port = NULL;
1da177e4
LT		 4685 }
4686 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4687}
4688
4689/**
4690 * ipr_slave_configure - Configure a SCSI device
4691 * @sdev: scsi device struct
4692 *
4693 * This function configures the specified scsi device.
4694 *
4695 * Return value:
4696 * 0 on success
4697 **/
4698static int ipr_slave_configure(struct scsi_device *sdev)
4699{
4700 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4701 struct ipr_resource_entry *res;
dd406ef8 4702 struct ata_port *ap = NULL;
1da177e4 4703 unsigned long lock_flags = 0;
3e7ebdfa 4704 char buffer[IPR_MAX_RES_PATH_LENGTH];
1da177e4
LT		 4705
4706 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4707 res = sdev->hostdata;
4708 if (res) {
4709 if (ipr_is_af_dasd_device(res))
4710 sdev->type = TYPE_RAID;
0726ce26 4711 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
1da177e4 4712 sdev->scsi_level = 4;
0726ce26
BK		 4713 sdev->no_uld_attach = 1;
4714 }
1da177e4 4715 if (ipr_is_vset_device(res)) {
242f9dcb
JA		 4716 blk_queue_rq_timeout(sdev->request_queue,
4717 IPR_VSET_RW_TIMEOUT);
086fa5ff 4718 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
1da177e4 4719 }
dd406ef8
BK		 4720 if (ipr_is_gata(res) && res->sata_port)
4721 ap = res->sata_port->ap;
4722 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4723
4724 if (ap) {
db5ed4df 4725 scsi_change_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN);
dd406ef8 4726 ata_sas_slave_configure(sdev, ap);
c8b09f6f
CH		 4727 }
4728
3e7ebdfa
WB		 4729 if (ioa_cfg->sis64)
4730 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
b3b3b407
BK		 4731 ipr_format_res_path(ioa_cfg,
4732 res->res_path, buffer, sizeof(buffer)));
dd406ef8 4733 return 0;
1da177e4
LT		 4734 }
4735 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4736 return 0;
4737}
4738
35a39691
BK		 4739/**
4740 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4741 * @sdev: scsi device struct
4742 *
4743 * This function initializes an ATA port so that future commands
4744 * sent through queuecommand will work.
4745 *
4746 * Return value:
4747 * 0 on success
4748 **/
4749static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4750{
4751 struct ipr_sata_port *sata_port = NULL;
4752 int rc = -ENXIO;
4753
4754 ENTER;
4755 if (sdev->sdev_target)
4756 sata_port = sdev->sdev_target->hostdata;
b2024459 4757 if (sata_port) {
35a39691 4758 rc = ata_sas_port_init(sata_port->ap);
b2024459
DW		 4759 if (rc == 0)
4760 rc = ata_sas_sync_probe(sata_port->ap);
4761 }
4762
35a39691
BK		 4763 if (rc)
4764 ipr_slave_destroy(sdev);
4765
4766 LEAVE;
4767 return rc;
4768}
4769
1da177e4
LT		 4770/**
4771 * ipr_slave_alloc - Prepare for commands to a device.
4772 * @sdev: scsi device struct
4773 *
4774 * This function saves a pointer to the resource entry
4775 * in the scsi device struct if the device exists. We
4776 * can then use this pointer in ipr_queuecommand when
4777 * handling new commands.
4778 *
4779 * Return value:
692aebfc 4780 * 0 on success / -ENXIO if device does not exist
1da177e4
LT		 4781 **/
4782static int ipr_slave_alloc(struct scsi_device *sdev)
4783{
4784 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4785 struct ipr_resource_entry *res;
4786 unsigned long lock_flags;
692aebfc 4787 int rc = -ENXIO;
1da177e4
LT		 4788
4789 sdev->hostdata = NULL;
4790
4791 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4792
35a39691
BK		 4793 res = ipr_find_sdev(sdev);
4794 if (res) {
4795 res->sdev = sdev;
4796 res->add_to_ml = 0;
4797 res->in_erp = 0;
4798 sdev->hostdata = res;
4799 if (!ipr_is_naca_model(res))
4800 res->needs_sync_complete = 1;
4801 rc = 0;
4802 if (ipr_is_gata(res)) {
4803 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4804 return ipr_ata_slave_alloc(sdev);
1da177e4
LT		 4805 }
4806 }
4807
4808 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4809
692aebfc 4810 return rc;
1da177e4
LT		 4811}
4812
70233ac5 4813static int ipr_eh_host_reset(struct scsi_cmnd *cmd)
1da177e4
LT		 4814{
4815 struct ipr_ioa_cfg *ioa_cfg;
70233ac5 4816 unsigned long lock_flags = 0;
4817 int rc = SUCCESS;
1da177e4
LT		 4818
4819 ENTER;
70233ac5 4820 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
4821 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1da177e4 4822
96b04db9 4823 if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
70233ac5 4824 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
a92fa25c
KSS		 4825 dev_err(&ioa_cfg->pdev->dev,
4826 "Adapter being reset as a result of error recovery.\n");
1da177e4 4827
a92fa25c
KSS		 4828 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4829 ioa_cfg->sdt_state = GET_DUMP;
4830 }
1da177e4 4831
70233ac5 4832 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4833 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4834 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
df0ae249 4835
70233ac5 4836 /* If we got hit with a host reset while we were already resetting
4837 the adapter for some reason, and the reset failed. */
4838 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
4839 ipr_trace;
4840 rc = FAILED;
4841 }
df0ae249 4842
70233ac5 4843 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4844 LEAVE;
df0ae249
JG		 4845 return rc;
4846}
4847
c6513096
BK		 4848/**
4849 * ipr_device_reset - Reset the device
4850 * @ioa_cfg: ioa config struct
4851 * @res: resource entry struct
4852 *
4853 * This function issues a device reset to the affected device.
4854 * If the device is a SCSI device, a LUN reset will be sent
4855 * to the device first. If that does not work, a target reset
35a39691
BK		 4856 * will be sent. If the device is a SATA device, a PHY reset will
4857 * be sent.
c6513096
BK		 4858 *
4859 * Return value:
4860 * 0 on success / non-zero on failure
4861 **/
4862static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
4863 struct ipr_resource_entry *res)
4864{
4865 struct ipr_cmnd *ipr_cmd;
4866 struct ipr_ioarcb *ioarcb;
4867 struct ipr_cmd_pkt *cmd_pkt;
35a39691 4868 struct ipr_ioarcb_ata_regs *regs;
c6513096
BK		 4869 u32 ioasc;
4870
4871 ENTER;
4872 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4873 ioarcb = &ipr_cmd->ioarcb;
4874 cmd_pkt = &ioarcb->cmd_pkt;
a32c055f
WB		 4875
4876 if (ipr_cmd->ioa_cfg->sis64) {
4877 regs = &ipr_cmd->i.ata_ioadl.regs;
4878 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
4879 } else
4880 regs = &ioarcb->u.add_data.u.regs;
c6513096 4881
3e7ebdfa 4882 ioarcb->res_handle = res->res_handle;
c6513096
BK		 4883 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4884 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
35a39691
BK		 4885 if (ipr_is_gata(res)) {
4886 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
a32c055f 4887 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
35a39691
BK		 4888 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
4889 }
c6513096
BK		 4890
4891 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
96d21f00 4892 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
05a6538a 4893 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
96d21f00
WB		 4894 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
4895 if (ipr_cmd->ioa_cfg->sis64)
4896 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
4897 sizeof(struct ipr_ioasa_gata));
4898 else
4899 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
4900 sizeof(struct ipr_ioasa_gata));
4901 }
c6513096
BK		 4902
4903 LEAVE;
203fa3fe 4904 return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0;
c6513096
BK		 4905}
4906
35a39691
BK		 4907/**
4908 * ipr_sata_reset - Reset the SATA port
cc0680a5 4909 * @link: SATA link to reset
35a39691
BK		 4910 * @classes: class of the attached device
4911 *
cc0680a5 4912 * This function issues a SATA phy reset to the affected ATA link.
35a39691
BK		 4913 *
4914 * Return value:
4915 * 0 on success / non-zero on failure
4916 **/
cc0680a5 4917static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
120bda35 4918 unsigned long deadline)
35a39691 4919{
cc0680a5 4920 struct ipr_sata_port *sata_port = link->ap->private_data;
35a39691
BK		 4921 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4922 struct ipr_resource_entry *res;
4923 unsigned long lock_flags = 0;
4924 int rc = -ENXIO;
4925
4926 ENTER;
4927 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 4928 while (ioa_cfg->in_reset_reload) {
73d98ff0
BK		 4929 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4930 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4931 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4932 }
4933
35a39691
BK		 4934 res = sata_port->res;
4935 if (res) {
4936 rc = ipr_device_reset(ioa_cfg, res);
3e7ebdfa 4937 *classes = res->ata_class;
35a39691
BK		 4938 }
4939
4940 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4941 LEAVE;
4942 return rc;
4943}
4944
1da177e4
LT		 4945/**
4946 * ipr_eh_dev_reset - Reset the device
4947 * @scsi_cmd: scsi command struct
4948 *
4949 * This function issues a device reset to the affected device.
4950 * A LUN reset will be sent to the device first. If that does
4951 * not work, a target reset will be sent.
4952 *
4953 * Return value:
4954 * SUCCESS / FAILED
4955 **/
203fa3fe 4956static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 4957{
4958 struct ipr_cmnd *ipr_cmd;
4959 struct ipr_ioa_cfg *ioa_cfg;
4960 struct ipr_resource_entry *res;
35a39691
BK		 4961 struct ata_port *ap;
4962 int rc = 0;
05a6538a 4963 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 4964
4965 ENTER;
4966 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4967 res = scsi_cmd->device->hostdata;
4968
eeb88307 4969 if (!res)
1da177e4
LT		 4970 return FAILED;
4971
4972 /*
4973 * If we are currently going through reset/reload, return failed. This will force the
4974 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
4975 * reset to complete
4976 */
4977 if (ioa_cfg->in_reset_reload)
4978 return FAILED;
56d6aa33 4979 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
1da177e4
LT		 4980 return FAILED;
4981
05a6538a 4982 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 4983 spin_lock(&hrrq->_lock);
05a6538a 4984 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
4985 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
4986 if (ipr_cmd->scsi_cmd)
4987 ipr_cmd->done = ipr_scsi_eh_done;
4988 if (ipr_cmd->qc)
4989 ipr_cmd->done = ipr_sata_eh_done;
4990 if (ipr_cmd->qc &&
4991 !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
4992 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
4993 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
4994 }
7402ecef 4995 }
1da177e4 4996 }
56d6aa33 4997 spin_unlock(&hrrq->_lock);
1da177e4 4998 }
1da177e4 4999 res->resetting_device = 1;
fb3ed3cb 5000 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
35a39691
BK		 5001
5002 if (ipr_is_gata(res) && res->sata_port) {
5003 ap = res->sata_port->ap;
5004 spin_unlock_irq(scsi_cmd->device->host->host_lock);
a1efdaba 5005 ata_std_error_handler(ap);
35a39691 5006 spin_lock_irq(scsi_cmd->device->host->host_lock);
5af23d26 5007
05a6538a 5008 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5009 spin_lock(&hrrq->_lock);
05a6538a 5010 list_for_each_entry(ipr_cmd,
5011 &hrrq->hrrq_pending_q, queue) {
5012 if (ipr_cmd->ioarcb.res_handle ==
5013 res->res_handle) {
5014 rc = -EIO;
5015 break;
5016 }
5af23d26 5017 }
56d6aa33 5018 spin_unlock(&hrrq->_lock);
5af23d26 5019 }
35a39691
BK		 5020 } else
5021 rc = ipr_device_reset(ioa_cfg, res);
1da177e4 5022 res->resetting_device = 0;
0b1f8d44 5023 res->reset_occurred = 1;
1da177e4 5024
1da177e4 5025 LEAVE;
203fa3fe 5026 return rc ? FAILED : SUCCESS;
1da177e4
LT		 5027}
5028
203fa3fe 5029static int ipr_eh_dev_reset(struct scsi_cmnd *cmd)
94d0e7b8
JG		 5030{
5031 int rc;
5032
5033 spin_lock_irq(cmd->device->host->host_lock);
5034 rc = __ipr_eh_dev_reset(cmd);
5035 spin_unlock_irq(cmd->device->host->host_lock);
5036
5037 return rc;
5038}
5039
1da177e4
LT		 5040/**
5041 * ipr_bus_reset_done - Op done function for bus reset.
5042 * @ipr_cmd: ipr command struct
5043 *
5044 * This function is the op done function for a bus reset
5045 *
5046 * Return value:
5047 * none
5048 **/
5049static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
5050{
5051 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5052 struct ipr_resource_entry *res;
5053
5054 ENTER;
3e7ebdfa
WB		 5055 if (!ioa_cfg->sis64)
5056 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5057 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
5058 scsi_report_bus_reset(ioa_cfg->host, res->bus);
5059 break;
5060 }
1da177e4 5061 }
1da177e4
LT		 5062
5063 /*
5064 * If abort has not completed, indicate the reset has, else call the
5065 * abort's done function to wake the sleeping eh thread
5066 */
5067 if (ipr_cmd->sibling->sibling)
5068 ipr_cmd->sibling->sibling = NULL;
5069 else
5070 ipr_cmd->sibling->done(ipr_cmd->sibling);
5071
05a6538a 5072 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 5073 LEAVE;
5074}
5075
5076/**
5077 * ipr_abort_timeout - An abort task has timed out
5078 * @ipr_cmd: ipr command struct
5079 *
5080 * This function handles when an abort task times out. If this
5081 * happens we issue a bus reset since we have resources tied
5082 * up that must be freed before returning to the midlayer.
5083 *
5084 * Return value:
5085 * none
5086 **/
5087static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
5088{
5089 struct ipr_cmnd *reset_cmd;
5090 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5091 struct ipr_cmd_pkt *cmd_pkt;
5092 unsigned long lock_flags = 0;
5093
5094 ENTER;
5095 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5096 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
5097 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5098 return;
5099 }
5100
fb3ed3cb 5101 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
1da177e4
LT		 5102 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5103 ipr_cmd->sibling = reset_cmd;
5104 reset_cmd->sibling = ipr_cmd;
5105 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
5106 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
5107 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5108 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5109 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
5110
5111 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5112 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5113 LEAVE;
5114}
5115
5116/**
5117 * ipr_cancel_op - Cancel specified op
5118 * @scsi_cmd: scsi command struct
5119 *
5120 * This function cancels specified op.
5121 *
5122 * Return value:
5123 * SUCCESS / FAILED
5124 **/
203fa3fe 5125static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 5126{
5127 struct ipr_cmnd *ipr_cmd;
5128 struct ipr_ioa_cfg *ioa_cfg;
5129 struct ipr_resource_entry *res;
5130 struct ipr_cmd_pkt *cmd_pkt;
a92fa25c 5131 u32 ioasc, int_reg;
1da177e4 5132 int op_found = 0;
05a6538a 5133 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 5134
5135 ENTER;
5136 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5137 res = scsi_cmd->device->hostdata;
5138
8fa728a2
JG		 5139 /* If we are currently going through reset/reload, return failed.
5140 * This will force the mid-layer to call ipr_eh_host_reset,
5141 * which will then go to sleep and wait for the reset to complete
5142 */
56d6aa33 5143 if (ioa_cfg->in_reset_reload ||
5144 ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
8fa728a2 5145 return FAILED;
a92fa25c
KSS		 5146 if (!res)
5147 return FAILED;
5148
5149 /*
5150 * If we are aborting a timed out op, chances are that the timeout was caused
5151 * by a still not detected EEH error. In such cases, reading a register will
5152 * trigger the EEH recovery infrastructure.
5153 */
5154 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5155
5156 if (!ipr_is_gscsi(res))
1da177e4
LT		 5157 return FAILED;
5158
05a6538a 5159 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5160 spin_lock(&hrrq->_lock);
05a6538a 5161 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5162 if (ipr_cmd->scsi_cmd == scsi_cmd) {
5163 ipr_cmd->done = ipr_scsi_eh_done;
5164 op_found = 1;
5165 break;
5166 }
1da177e4 5167 }
56d6aa33 5168 spin_unlock(&hrrq->_lock);
1da177e4
LT		 5169 }
5170
5171 if (!op_found)
5172 return SUCCESS;
5173
5174 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3e7ebdfa 5175 ipr_cmd->ioarcb.res_handle = res->res_handle;
1da177e4
LT		 5176 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5177 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5178 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5179 ipr_cmd->u.sdev = scsi_cmd->device;
5180
fb3ed3cb
BK		 5181 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
5182 scsi_cmd->cmnd[0]);
1da177e4 5183 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
96d21f00 5184 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5185
5186 /*
5187 * If the abort task timed out and we sent a bus reset, we will get
5188 * one the following responses to the abort
5189 */
5190 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
5191 ioasc = 0;
5192 ipr_trace;
5193 }
5194
c4ee22a3 5195 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
ee0a90fa
BK		 5196 if (!ipr_is_naca_model(res))
5197 res->needs_sync_complete = 1;
1da177e4
LT		 5198
5199 LEAVE;
203fa3fe 5200 return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS;
1da177e4
LT		 5201}
5202
5203/**
5204 * ipr_eh_abort - Abort a single op
5205 * @scsi_cmd: scsi command struct
5206 *
5207 * Return value:
f688f96d
BK		 5208 * 0 if scan in progress / 1 if scan is complete
5209 **/
5210static int ipr_scan_finished(struct Scsi_Host *shost, unsigned long elapsed_time)
5211{
5212 unsigned long lock_flags;
5213 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
5214 int rc = 0;
5215
5216 spin_lock_irqsave(shost->host_lock, lock_flags);
5217 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead || ioa_cfg->scan_done)
5218 rc = 1;
5219 if ((elapsed_time/HZ) > (ioa_cfg->transop_timeout * 2))
5220 rc = 1;
5221 spin_unlock_irqrestore(shost->host_lock, lock_flags);
5222 return rc;
5223}
5224
5225/**
5226 * ipr_eh_host_reset - Reset the host adapter
5227 * @scsi_cmd: scsi command struct
5228 *
5229 * Return value:
1da177e4
LT		 5230 * SUCCESS / FAILED
5231 **/
203fa3fe 5232static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd)
1da177e4 5233{
8fa728a2
JG		 5234 unsigned long flags;
5235 int rc;
1da177e4
LT		 5236
5237 ENTER;
1da177e4 5238
8fa728a2
JG		 5239 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
5240 rc = ipr_cancel_op(scsi_cmd);
5241 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
1da177e4
LT		 5242
5243 LEAVE;
8fa728a2 5244 return rc;
1da177e4
LT		 5245}
5246
5247/**
5248 * ipr_handle_other_interrupt - Handle "other" interrupts
5249 * @ioa_cfg: ioa config struct
634651fa 5250 * @int_reg: interrupt register
1da177e4
LT		 5251 *
5252 * Return value:
5253 * IRQ_NONE / IRQ_HANDLED
5254 **/
634651fa 5255static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
630ad831 5256 u32 int_reg)
1da177e4
LT		 5257{
5258 irqreturn_t rc = IRQ_HANDLED;
7dacb64f 5259 u32 int_mask_reg;
56d6aa33 5260
7dacb64f
WB		 5261 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5262 int_reg &= ~int_mask_reg;
5263
5264 /* If an interrupt on the adapter did not occur, ignore it.
5265 * Or in the case of SIS 64, check for a stage change interrupt.
5266 */
5267 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5268 if (ioa_cfg->sis64) {
5269 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5270 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5271 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5272
5273 /* clear stage change */
5274 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5275 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5276 list_del(&ioa_cfg->reset_cmd->queue);
5277 del_timer(&ioa_cfg->reset_cmd->timer);
5278 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5279 return IRQ_HANDLED;
5280 }
5281 }
5282
5283 return IRQ_NONE;
5284 }
1da177e4
LT		 5285
5286 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5287 /* Mask the interrupt */
5288 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
5289
5290 /* Clear the interrupt */
5291 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
5292 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5293
5294 list_del(&ioa_cfg->reset_cmd->queue);
5295 del_timer(&ioa_cfg->reset_cmd->timer);
5296 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
7dacb64f 5297 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
7dd21308
BK		 5298 if (ioa_cfg->clear_isr) {
5299 if (ipr_debug && printk_ratelimit())
5300 dev_err(&ioa_cfg->pdev->dev,
5301 "Spurious interrupt detected. 0x%08X\n", int_reg);
5302 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5303 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5304 return IRQ_NONE;
5305 }
1da177e4
LT		 5306 } else {
5307 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5308 ioa_cfg->ioa_unit_checked = 1;
05a6538a 5309 else if (int_reg & IPR_PCII_NO_HOST_RRQ)
5310 dev_err(&ioa_cfg->pdev->dev,
5311 "No Host RRQ. 0x%08X\n", int_reg);
1da177e4
LT		 5312 else
5313 dev_err(&ioa_cfg->pdev->dev,
5314 "Permanent IOA failure. 0x%08X\n", int_reg);
5315
5316 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5317 ioa_cfg->sdt_state = GET_DUMP;
5318
5319 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5320 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5321 }
56d6aa33 5322
1da177e4
LT		 5323 return rc;
5324}
5325
3feeb89d
WB		 5326/**
5327 * ipr_isr_eh - Interrupt service routine error handler
5328 * @ioa_cfg: ioa config struct
5329 * @msg: message to log
5330 *
5331 * Return value:
5332 * none
5333 **/
05a6538a 5334static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg, u16 number)
3feeb89d
WB		 5335{
5336 ioa_cfg->errors_logged++;
05a6538a 5337 dev_err(&ioa_cfg->pdev->dev, "%s %d\n", msg, number);
3feeb89d
WB		 5338
5339 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5340 ioa_cfg->sdt_state = GET_DUMP;
5341
5342 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5343}
5344
b53d124a 5345static int ipr_process_hrrq(struct ipr_hrr_queue *hrr_queue, int budget,
05a6538a 5346 struct list_head *doneq)
5347{
5348 u32 ioasc;
5349 u16 cmd_index;
5350 struct ipr_cmnd *ipr_cmd;
5351 struct ipr_ioa_cfg *ioa_cfg = hrr_queue->ioa_cfg;
5352 int num_hrrq = 0;
5353
5354 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5355 if (!hrr_queue->allow_interrupts)
05a6538a 5356 return 0;
5357
5358 while ((be32_to_cpu(*hrr_queue->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5359 hrr_queue->toggle_bit) {
5360
5361 cmd_index = (be32_to_cpu(*hrr_queue->hrrq_curr) &
5362 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >>
5363 IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5364
5365 if (unlikely(cmd_index > hrr_queue->max_cmd_id ||
5366 cmd_index < hrr_queue->min_cmd_id)) {
5367 ipr_isr_eh(ioa_cfg,
5368 "Invalid response handle from IOA: ",
5369 cmd_index);
5370 break;
5371 }
5372
5373 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5374 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5375
5376 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5377
5378 list_move_tail(&ipr_cmd->queue, doneq);
5379
5380 if (hrr_queue->hrrq_curr < hrr_queue->hrrq_end) {
5381 hrr_queue->hrrq_curr++;
5382 } else {
5383 hrr_queue->hrrq_curr = hrr_queue->hrrq_start;
5384 hrr_queue->toggle_bit ^= 1u;
5385 }
5386 num_hrrq++;
b53d124a 5387 if (budget > 0 && num_hrrq >= budget)
5388 break;
05a6538a 5389 }
b53d124a 5390
05a6538a 5391 return num_hrrq;
5392}
b53d124a 5393
5394static int ipr_iopoll(struct blk_iopoll *iop, int budget)
5395{
5396 struct ipr_ioa_cfg *ioa_cfg;
5397 struct ipr_hrr_queue *hrrq;
5398 struct ipr_cmnd *ipr_cmd, *temp;
5399 unsigned long hrrq_flags;
5400 int completed_ops;
5401 LIST_HEAD(doneq);
5402
5403 hrrq = container_of(iop, struct ipr_hrr_queue, iopoll);
5404 ioa_cfg = hrrq->ioa_cfg;
5405
5406 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5407 completed_ops = ipr_process_hrrq(hrrq, budget, &doneq);
5408
5409 if (completed_ops < budget)
5410 blk_iopoll_complete(iop);
5411 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5412
5413 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5414 list_del(&ipr_cmd->queue);
5415 del_timer(&ipr_cmd->timer);
5416 ipr_cmd->fast_done(ipr_cmd);
5417 }
5418
5419 return completed_ops;
5420}
5421
1da177e4
LT		 5422/**
5423 * ipr_isr - Interrupt service routine
5424 * @irq: irq number
5425 * @devp: pointer to ioa config struct
1da177e4
LT		 5426 *
5427 * Return value:
5428 * IRQ_NONE / IRQ_HANDLED
5429 **/
7d12e780 5430static irqreturn_t ipr_isr(int irq, void *devp)
1da177e4 5431{
05a6538a 5432 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5433 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
56d6aa33 5434 unsigned long hrrq_flags = 0;
7dacb64f 5435 u32 int_reg = 0;
3feeb89d 5436 int num_hrrq = 0;
7dacb64f 5437 int irq_none = 0;
172cd6e1 5438 struct ipr_cmnd *ipr_cmd, *temp;
1da177e4 5439 irqreturn_t rc = IRQ_NONE;
172cd6e1 5440 LIST_HEAD(doneq);
1da177e4 5441
56d6aa33 5442 spin_lock_irqsave(hrrq->lock, hrrq_flags);
1da177e4 5443 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5444 if (!hrrq->allow_interrupts) {
5445 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4
LT		 5446 return IRQ_NONE;
5447 }
5448
1da177e4 5449 while (1) {
b53d124a 5450 if (ipr_process_hrrq(hrrq, -1, &doneq)) {
5451 rc = IRQ_HANDLED;
1da177e4 5452
b53d124a 5453 if (!ioa_cfg->clear_isr)
5454 break;
7dd21308 5455
1da177e4 5456 /* Clear the PCI interrupt */
a5442ba4 5457 num_hrrq = 0;
3feeb89d 5458 do {
b53d124a 5459 writel(IPR_PCII_HRRQ_UPDATED,
5460 ioa_cfg->regs.clr_interrupt_reg32);
7dacb64f 5461 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
3feeb89d 5462 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
b53d124a 5463 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
3feeb89d 5464
7dacb64f
WB		 5465 } else if (rc == IRQ_NONE && irq_none == 0) {
5466 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5467 irq_none++;
a5442ba4
WB		 5468 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5469 int_reg & IPR_PCII_HRRQ_UPDATED) {
b53d124a 5470 ipr_isr_eh(ioa_cfg,
5471 "Error clearing HRRQ: ", num_hrrq);
172cd6e1 5472 rc = IRQ_HANDLED;
b53d124a 5473 break;
1da177e4
LT		 5474 } else
5475 break;
5476 }
5477
5478 if (unlikely(rc == IRQ_NONE))
634651fa 5479 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
1da177e4 5480
56d6aa33 5481 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
172cd6e1
BK		 5482 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5483 list_del(&ipr_cmd->queue);
5484 del_timer(&ipr_cmd->timer);
5485 ipr_cmd->fast_done(ipr_cmd);
5486 }
05a6538a 5487 return rc;
5488}
5489
5490/**
5491 * ipr_isr_mhrrq - Interrupt service routine
5492 * @irq: irq number
5493 * @devp: pointer to ioa config struct
5494 *
5495 * Return value:
5496 * IRQ_NONE / IRQ_HANDLED
5497 **/
5498static irqreturn_t ipr_isr_mhrrq(int irq, void *devp)
5499{
5500 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
b53d124a 5501 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
56d6aa33 5502 unsigned long hrrq_flags = 0;
05a6538a 5503 struct ipr_cmnd *ipr_cmd, *temp;
5504 irqreturn_t rc = IRQ_NONE;
5505 LIST_HEAD(doneq);
172cd6e1 5506
56d6aa33 5507 spin_lock_irqsave(hrrq->lock, hrrq_flags);
05a6538a 5508
5509 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5510 if (!hrrq->allow_interrupts) {
5511 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 5512 return IRQ_NONE;
5513 }
5514
89f8b33c 5515 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 5516 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5517 hrrq->toggle_bit) {
5518 if (!blk_iopoll_sched_prep(&hrrq->iopoll))
5519 blk_iopoll_sched(&hrrq->iopoll);
5520 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5521 return IRQ_HANDLED;
5522 }
5523 } else {
5524 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5525 hrrq->toggle_bit)
05a6538a 5526
b53d124a 5527 if (ipr_process_hrrq(hrrq, -1, &doneq))
5528 rc = IRQ_HANDLED;
5529 }
05a6538a 5530
56d6aa33 5531 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 5532
5533 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5534 list_del(&ipr_cmd->queue);
5535 del_timer(&ipr_cmd->timer);
5536 ipr_cmd->fast_done(ipr_cmd);
5537 }
1da177e4
LT		 5538 return rc;
5539}
5540
a32c055f
WB		 5541/**
5542 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5543 * @ioa_cfg: ioa config struct
5544 * @ipr_cmd: ipr command struct
5545 *
5546 * Return value:
5547 * 0 on success / -1 on failure
5548 **/
5549static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5550 struct ipr_cmnd *ipr_cmd)
5551{
5552 int i, nseg;
5553 struct scatterlist *sg;
5554 u32 length;
5555 u32 ioadl_flags = 0;
5556 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5557 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5558 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5559
5560 length = scsi_bufflen(scsi_cmd);
5561 if (!length)
5562 return 0;
5563
5564 nseg = scsi_dma_map(scsi_cmd);
5565 if (nseg < 0) {
51f52a47 5566 if (printk_ratelimit())
d73341bf 5567 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
a32c055f
WB		 5568 return -1;
5569 }
5570
5571 ipr_cmd->dma_use_sg = nseg;
5572
438b0331 5573 ioarcb->data_transfer_length = cpu_to_be32(length);
b8803b1c
WB		 5574 ioarcb->ioadl_len =
5575 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
438b0331 5576
a32c055f
WB		 5577 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5578 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5579 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5580 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5581 ioadl_flags = IPR_IOADL_FLAGS_READ;
5582
5583 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5584 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5585 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5586 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5587 }
5588
5589 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5590 return 0;
5591}
5592
1da177e4
LT		 5593/**
5594 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5595 * @ioa_cfg: ioa config struct
5596 * @ipr_cmd: ipr command struct
5597 *
5598 * Return value:
5599 * 0 on success / -1 on failure
5600 **/
5601static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5602 struct ipr_cmnd *ipr_cmd)
5603{
63015bc9
FT		 5604 int i, nseg;
5605 struct scatterlist *sg;
1da177e4
LT		 5606 u32 length;
5607 u32 ioadl_flags = 0;
5608 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5609 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 5610 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4 5611
63015bc9
FT		 5612 length = scsi_bufflen(scsi_cmd);
5613 if (!length)
1da177e4
LT		 5614 return 0;
5615
63015bc9
FT		 5616 nseg = scsi_dma_map(scsi_cmd);
5617 if (nseg < 0) {
d73341bf 5618 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
63015bc9
FT		 5619 return -1;
5620 }
51b1c7e1 5621
63015bc9
FT		 5622 ipr_cmd->dma_use_sg = nseg;
5623
5624 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5625 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5626 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 5627 ioarcb->data_transfer_length = cpu_to_be32(length);
5628 ioarcb->ioadl_len =
63015bc9
FT		 5629 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5630 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5631 ioadl_flags = IPR_IOADL_FLAGS_READ;
5632 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5633 ioarcb->read_ioadl_len =
5634 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5635 }
1da177e4 5636
a32c055f
WB		 5637 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5638 ioadl = ioarcb->u.add_data.u.ioadl;
5639 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5640 offsetof(struct ipr_ioarcb, u.add_data));
63015bc9
FT		 5641 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5642 }
1da177e4 5643
63015bc9
FT		 5644 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5645 ioadl[i].flags_and_data_len =
5646 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5647 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
1da177e4
LT		 5648 }
5649
63015bc9
FT		 5650 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5651 return 0;
1da177e4
LT		 5652}
5653
1da177e4
LT		 5654/**
5655 * ipr_erp_done - Process completion of ERP for a device
5656 * @ipr_cmd: ipr command struct
5657 *
5658 * This function copies the sense buffer into the scsi_cmd
5659 * struct and pushes the scsi_done function.
5660 *
5661 * Return value:
5662 * nothing
5663 **/
5664static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5665{
5666 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5667 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 5668 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5669
5670 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5671 scsi_cmd->result |= (DID_ERROR << 16);
fb3ed3cb
BK		 5672 scmd_printk(KERN_ERR, scsi_cmd,
5673 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
1da177e4
LT		 5674 } else {
5675 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5676 SCSI_SENSE_BUFFERSIZE);
5677 }
5678
5679 if (res) {
ee0a90fa
BK		 5680 if (!ipr_is_naca_model(res))
5681 res->needs_sync_complete = 1;
1da177e4
LT		 5682 res->in_erp = 0;
5683 }
63015bc9 5684 scsi_dma_unmap(ipr_cmd->scsi_cmd);
05a6538a 5685 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 5686 scsi_cmd->scsi_done(scsi_cmd);
5687}
5688
5689/**
5690 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5691 * @ipr_cmd: ipr command struct
5692 *
5693 * Return value:
5694 * none
5695 **/
5696static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5697{
51b1c7e1 5698 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00 5699 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
a32c055f 5700 dma_addr_t dma_addr = ipr_cmd->dma_addr;
1da177e4
LT		 5701
5702 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
a32c055f 5703 ioarcb->data_transfer_length = 0;
1da177e4 5704 ioarcb->read_data_transfer_length = 0;
a32c055f 5705 ioarcb->ioadl_len = 0;
1da177e4 5706 ioarcb->read_ioadl_len = 0;
96d21f00
WB		 5707 ioasa->hdr.ioasc = 0;
5708 ioasa->hdr.residual_data_len = 0;
a32c055f
WB		 5709
5710 if (ipr_cmd->ioa_cfg->sis64)
5711 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5712 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5713 else {
5714 ioarcb->write_ioadl_addr =
5715 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5716 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5717 }
1da177e4
LT		 5718}
5719
5720/**
5721 * ipr_erp_request_sense - Send request sense to a device
5722 * @ipr_cmd: ipr command struct
5723 *
5724 * This function sends a request sense to a device as a result
5725 * of a check condition.
5726 *
5727 * Return value:
5728 * nothing
5729 **/
5730static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5731{
5732 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
96d21f00 5733 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5734
5735 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5736 ipr_erp_done(ipr_cmd);
5737 return;
5738 }
5739
5740 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5741
5742 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5743 cmd_pkt->cdb[0] = REQUEST_SENSE;
5744 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5745 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5746 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5747 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5748
a32c055f
WB		 5749 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5750 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 5751
5752 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5753 IPR_REQUEST_SENSE_TIMEOUT * 2);
5754}
5755
5756/**
5757 * ipr_erp_cancel_all - Send cancel all to a device
5758 * @ipr_cmd: ipr command struct
5759 *
5760 * This function sends a cancel all to a device to clear the
5761 * queue. If we are running TCQ on the device, QERR is set to 1,
5762 * which means all outstanding ops have been dropped on the floor.
5763 * Cancel all will return them to us.
5764 *
5765 * Return value:
5766 * nothing
5767 **/
5768static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5769{
5770 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5771 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5772 struct ipr_cmd_pkt *cmd_pkt;
5773
5774 res->in_erp = 1;
5775
5776 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5777
17ea0126 5778 if (!scsi_cmd->device->simple_tags) {
1da177e4
LT		 5779 ipr_erp_request_sense(ipr_cmd);
5780 return;
5781 }
5782
5783 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5784 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5785 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5786
5787 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5788 IPR_CANCEL_ALL_TIMEOUT);
5789}
5790
5791/**
5792 * ipr_dump_ioasa - Dump contents of IOASA
5793 * @ioa_cfg: ioa config struct
5794 * @ipr_cmd: ipr command struct
fe964d0a 5795 * @res: resource entry struct
1da177e4
LT		 5796 *
5797 * This function is invoked by the interrupt handler when ops
5798 * fail. It will log the IOASA if appropriate. Only called
5799 * for GPDD ops.
5800 *
5801 * Return value:
5802 * none
5803 **/
5804static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
fe964d0a 5805 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
1da177e4
LT		 5806{
5807 int i;
5808 u16 data_len;
b0692dd4 5809 u32 ioasc, fd_ioasc;
96d21f00 5810 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
1da177e4
LT		 5811 __be32 *ioasa_data = (__be32 *)ioasa;
5812 int error_index;
5813
96d21f00
WB		 5814 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5815 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 5816
5817 if (0 == ioasc)
5818 return;
5819
5820 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
5821 return;
5822
b0692dd4
BK		 5823 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
5824 error_index = ipr_get_error(fd_ioasc);
5825 else
5826 error_index = ipr_get_error(ioasc);
1da177e4
LT		 5827
5828 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
5829 /* Don't log an error if the IOA already logged one */
96d21f00 5830 if (ioasa->hdr.ilid != 0)
1da177e4
LT		 5831 return;
5832
cc9bd5d4
BK		 5833 if (!ipr_is_gscsi(res))
5834 return;
5835
1da177e4
LT		 5836 if (ipr_error_table[error_index].log_ioasa == 0)
5837 return;
5838 }
5839
fe964d0a 5840 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
1da177e4 5841
96d21f00
WB		 5842 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
5843 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
5844 data_len = sizeof(struct ipr_ioasa64);
5845 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
1da177e4 5846 data_len = sizeof(struct ipr_ioasa);
1da177e4
LT		 5847
5848 ipr_err("IOASA Dump:\n");
5849
5850 for (i = 0; i < data_len / 4; i += 4) {
5851 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
5852 be32_to_cpu(ioasa_data[i]),
5853 be32_to_cpu(ioasa_data[i+1]),
5854 be32_to_cpu(ioasa_data[i+2]),
5855 be32_to_cpu(ioasa_data[i+3]));
5856 }
5857}
5858
5859/**
5860 * ipr_gen_sense - Generate SCSI sense data from an IOASA
5861 * @ioasa: IOASA
5862 * @sense_buf: sense data buffer
5863 *
5864 * Return value:
5865 * none
5866 **/
5867static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
5868{
5869 u32 failing_lba;
5870 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
5871 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
96d21f00
WB		 5872 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5873 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
1da177e4
LT		 5874
5875 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
5876
5877 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
5878 return;
5879
5880 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
5881
5882 if (ipr_is_vset_device(res) &&
5883 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
5884 ioasa->u.vset.failing_lba_hi != 0) {
5885 sense_buf[0] = 0x72;
5886 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
5887 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
5888 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
5889
5890 sense_buf[7] = 12;
5891 sense_buf[8] = 0;
5892 sense_buf[9] = 0x0A;
5893 sense_buf[10] = 0x80;
5894
5895 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
5896
5897 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
5898 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
5899 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
5900 sense_buf[15] = failing_lba & 0x000000ff;
5901
5902 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5903
5904 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
5905 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
5906 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
5907 sense_buf[19] = failing_lba & 0x000000ff;
5908 } else {
5909 sense_buf[0] = 0x70;
5910 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
5911 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
5912 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
5913
5914 /* Illegal request */
5915 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
96d21f00 5916 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
1da177e4
LT		 5917 sense_buf[7] = 10; /* additional length */
5918
5919 /* IOARCB was in error */
5920 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
5921 sense_buf[15] = 0xC0;
5922 else /* Parameter data was invalid */
5923 sense_buf[15] = 0x80;
5924
5925 sense_buf[16] =
5926 ((IPR_FIELD_POINTER_MASK &
96d21f00 5927 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
1da177e4
LT		 5928 sense_buf[17] =
5929 (IPR_FIELD_POINTER_MASK &
96d21f00 5930 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
1da177e4
LT		 5931 } else {
5932 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
5933 if (ipr_is_vset_device(res))
5934 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5935 else
5936 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
5937
5938 sense_buf[0] |= 0x80; /* Or in the Valid bit */
5939 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
5940 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
5941 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
5942 sense_buf[6] = failing_lba & 0x000000ff;
5943 }
5944
5945 sense_buf[7] = 6; /* additional length */
5946 }
5947 }
5948}
5949
ee0a90fa
BK		 5950/**
5951 * ipr_get_autosense - Copy autosense data to sense buffer
5952 * @ipr_cmd: ipr command struct
5953 *
5954 * This function copies the autosense buffer to the buffer
5955 * in the scsi_cmd, if there is autosense available.
5956 *
5957 * Return value:
5958 * 1 if autosense was available / 0 if not
5959 **/
5960static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
5961{
96d21f00
WB		 5962 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5963 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
ee0a90fa 5964
96d21f00 5965 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
ee0a90fa
BK		 5966 return 0;
5967
96d21f00
WB		 5968 if (ipr_cmd->ioa_cfg->sis64)
5969 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
5970 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
5971 SCSI_SENSE_BUFFERSIZE));
5972 else
5973 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
5974 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
5975 SCSI_SENSE_BUFFERSIZE));
ee0a90fa
BK		 5976 return 1;
5977}
5978
1da177e4
LT		 5979/**
5980 * ipr_erp_start - Process an error response for a SCSI op
5981 * @ioa_cfg: ioa config struct
5982 * @ipr_cmd: ipr command struct
5983 *
5984 * This function determines whether or not to initiate ERP
5985 * on the affected device.
5986 *
5987 * Return value:
5988 * nothing
5989 **/
5990static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
5991 struct ipr_cmnd *ipr_cmd)
5992{
5993 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5994 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 5995 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
8a048994 5996 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 5997
5998 if (!res) {
5999 ipr_scsi_eh_done(ipr_cmd);
6000 return;
6001 }
6002
8a048994 6003 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
1da177e4
LT		 6004 ipr_gen_sense(ipr_cmd);
6005
cc9bd5d4
BK		 6006 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6007
8a048994 6008 switch (masked_ioasc) {
1da177e4 6009 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
ee0a90fa
BK		 6010 if (ipr_is_naca_model(res))
6011 scsi_cmd->result |= (DID_ABORT << 16);
6012 else
6013 scsi_cmd->result |= (DID_IMM_RETRY << 16);
1da177e4
LT		 6014 break;
6015 case IPR_IOASC_IR_RESOURCE_HANDLE:
b0df54bb 6016 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
1da177e4
LT		 6017 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6018 break;
6019 case IPR_IOASC_HW_SEL_TIMEOUT:
6020 scsi_cmd->result |= (DID_NO_CONNECT << 16);
ee0a90fa
BK		 6021 if (!ipr_is_naca_model(res))
6022 res->needs_sync_complete = 1;
1da177e4
LT		 6023 break;
6024 case IPR_IOASC_SYNC_REQUIRED:
6025 if (!res->in_erp)
6026 res->needs_sync_complete = 1;
6027 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6028 break;
6029 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
b0df54bb 6030 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
1da177e4
LT		 6031 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
6032 break;
6033 case IPR_IOASC_BUS_WAS_RESET:
6034 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
6035 /*
6036 * Report the bus reset and ask for a retry. The device
6037 * will give CC/UA the next command.
6038 */
6039 if (!res->resetting_device)
6040 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
6041 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa
BK		 6042 if (!ipr_is_naca_model(res))
6043 res->needs_sync_complete = 1;
1da177e4
LT		 6044 break;
6045 case IPR_IOASC_HW_DEV_BUS_STATUS:
6046 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
6047 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
ee0a90fa
BK		 6048 if (!ipr_get_autosense(ipr_cmd)) {
6049 if (!ipr_is_naca_model(res)) {
6050 ipr_erp_cancel_all(ipr_cmd);
6051 return;
6052 }
6053 }
1da177e4 6054 }
ee0a90fa
BK		 6055 if (!ipr_is_naca_model(res))
6056 res->needs_sync_complete = 1;
1da177e4
LT		 6057 break;
6058 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
6059 break;
6060 default:
5b7304fb
BK		 6061 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6062 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa 6063 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
1da177e4
LT		 6064 res->needs_sync_complete = 1;
6065 break;
6066 }
6067
63015bc9 6068 scsi_dma_unmap(ipr_cmd->scsi_cmd);
05a6538a 6069 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 6070 scsi_cmd->scsi_done(scsi_cmd);
6071}
6072
6073/**
6074 * ipr_scsi_done - mid-layer done function
6075 * @ipr_cmd: ipr command struct
6076 *
6077 * This function is invoked by the interrupt handler for
6078 * ops generated by the SCSI mid-layer
6079 *
6080 * Return value:
6081 * none
6082 **/
6083static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
6084{
6085 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6086 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
96d21f00 6087 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
05a6538a 6088 unsigned long hrrq_flags;
1da177e4 6089
96d21f00 6090 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
1da177e4
LT		 6091
6092 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
172cd6e1
BK		 6093 scsi_dma_unmap(scsi_cmd);
6094
56d6aa33 6095 spin_lock_irqsave(ipr_cmd->hrrq->lock, hrrq_flags);
05a6538a 6096 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4 6097 scsi_cmd->scsi_done(scsi_cmd);
56d6aa33 6098 spin_unlock_irqrestore(ipr_cmd->hrrq->lock, hrrq_flags);
172cd6e1 6099 } else {
56d6aa33 6100 spin_lock_irqsave(ipr_cmd->hrrq->lock, hrrq_flags);
1da177e4 6101 ipr_erp_start(ioa_cfg, ipr_cmd);
56d6aa33 6102 spin_unlock_irqrestore(ipr_cmd->hrrq->lock, hrrq_flags);
172cd6e1 6103 }
1da177e4
LT		 6104}
6105
1da177e4
LT		 6106/**
6107 * ipr_queuecommand - Queue a mid-layer request
00bfef2c 6108 * @shost: scsi host struct
1da177e4 6109 * @scsi_cmd: scsi command struct
1da177e4
LT		 6110 *
6111 * This function queues a request generated by the mid-layer.
6112 *
6113 * Return value:
6114 * 0 on success
6115 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
6116 * SCSI_MLQUEUE_HOST_BUSY if host is busy
6117 **/
00bfef2c
BK		 6118static int ipr_queuecommand(struct Scsi_Host *shost,
6119 struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 6120{
6121 struct ipr_ioa_cfg *ioa_cfg;
6122 struct ipr_resource_entry *res;
6123 struct ipr_ioarcb *ioarcb;
6124 struct ipr_cmnd *ipr_cmd;
56d6aa33 6125 unsigned long hrrq_flags, lock_flags;
d12f1576 6126 int rc;
05a6538a 6127 struct ipr_hrr_queue *hrrq;
6128 int hrrq_id;
1da177e4 6129
00bfef2c
BK		 6130 ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
6131
1da177e4 6132 scsi_cmd->result = (DID_OK << 16);
00bfef2c 6133 res = scsi_cmd->device->hostdata;
56d6aa33 6134
6135 if (ipr_is_gata(res) && res->sata_port) {
6136 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6137 rc = ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
6138 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6139 return rc;
6140 }
6141
05a6538a 6142 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6143 hrrq = &ioa_cfg->hrrq[hrrq_id];
1da177e4 6144
56d6aa33 6145 spin_lock_irqsave(hrrq->lock, hrrq_flags);
1da177e4
LT		 6146 /*
6147 * We are currently blocking all devices due to a host reset
6148 * We have told the host to stop giving us new requests, but
6149 * ERP ops don't count. FIXME
6150 */
bfae7820 6151 if (unlikely(!hrrq->allow_cmds && !hrrq->ioa_is_dead && !hrrq->removing_ioa)) {
56d6aa33 6152 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4 6153 return SCSI_MLQUEUE_HOST_BUSY;
00bfef2c 6154 }
1da177e4
LT		 6155
6156 /*
6157 * FIXME - Create scsi_set_host_offline interface
6158 * and the ioa_is_dead check can be removed
6159 */
bfae7820 6160 if (unlikely(hrrq->ioa_is_dead || hrrq->removing_ioa || !res)) {
56d6aa33 6161 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c 6162 goto err_nodev;
1da177e4
LT		 6163 }
6164
05a6538a 6165 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6166 if (ipr_cmd == NULL) {
56d6aa33 6167 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 6168 return SCSI_MLQUEUE_HOST_BUSY;
6169 }
56d6aa33 6170 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
35a39691 6171
172cd6e1 6172 ipr_init_ipr_cmnd(ipr_cmd, ipr_scsi_done);
1da177e4 6173 ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 6174
6175 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
6176 ipr_cmd->scsi_cmd = scsi_cmd;
172cd6e1 6177 ipr_cmd->done = ipr_scsi_eh_done;
1da177e4
LT		 6178
6179 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
6180 if (scsi_cmd->underflow == 0)
6181 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6182
1da177e4 6183 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
0b1f8d44
WX		 6184 if (ipr_is_gscsi(res) && res->reset_occurred) {
6185 res->reset_occurred = 0;
ab6c10b1 6186 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
0b1f8d44 6187 }
1da177e4 6188 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
50668633
CH		 6189 if (scsi_cmd->flags & SCMD_TAGGED)
6190 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_SIMPLE_TASK;
6191 else
6192 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_UNTAGGED_TASK;
1da177e4
LT		 6193 }
6194
6195 if (scsi_cmd->cmnd[0] >= 0xC0 &&
05a6538a 6196 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) {
1da177e4 6197 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
05a6538a 6198 }
1da177e4 6199
d12f1576
DC		 6200 if (ioa_cfg->sis64)
6201 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
6202 else
6203 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
1da177e4 6204
56d6aa33 6205 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6206 if (unlikely(rc || (!hrrq->allow_cmds && !hrrq->ioa_is_dead))) {
05a6538a 6207 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
56d6aa33 6208 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6209 if (!rc)
6210 scsi_dma_unmap(scsi_cmd);
a5fb407e 6211 return SCSI_MLQUEUE_HOST_BUSY;
1da177e4
LT		 6212 }
6213
56d6aa33 6214 if (unlikely(hrrq->ioa_is_dead)) {
05a6538a 6215 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
56d6aa33 6216 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6217 scsi_dma_unmap(scsi_cmd);
6218 goto err_nodev;
6219 }
6220
6221 ioarcb->res_handle = res->res_handle;
6222 if (res->needs_sync_complete) {
6223 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
6224 res->needs_sync_complete = 0;
6225 }
05a6538a 6226 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_pending_q);
00bfef2c 6227 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
a5fb407e 6228 ipr_send_command(ipr_cmd);
56d6aa33 6229 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4 6230 return 0;
1da177e4 6231
00bfef2c 6232err_nodev:
56d6aa33 6233 spin_lock_irqsave(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6234 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
6235 scsi_cmd->result = (DID_NO_CONNECT << 16);
6236 scsi_cmd->scsi_done(scsi_cmd);
56d6aa33 6237 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6238 return 0;
6239}
f281233d 6240
35a39691
BK		 6241/**
6242 * ipr_ioctl - IOCTL handler
6243 * @sdev: scsi device struct
6244 * @cmd: IOCTL cmd
6245 * @arg: IOCTL arg
6246 *
6247 * Return value:
6248 * 0 on success / other on failure
6249 **/
bd705f2d 6250static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
35a39691
BK		 6251{
6252 struct ipr_resource_entry *res;
6253
6254 res = (struct ipr_resource_entry *)sdev->hostdata;
0ce3a7e5
BK		 6255 if (res && ipr_is_gata(res)) {
6256 if (cmd == HDIO_GET_IDENTITY)
6257 return -ENOTTY;
94be9a58 6258 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
0ce3a7e5 6259 }
35a39691
BK		 6260
6261 return -EINVAL;
6262}
6263
1da177e4
LT		 6264/**
6265 * ipr_info - Get information about the card/driver
6266 * @scsi_host: scsi host struct
6267 *
6268 * Return value:
6269 * pointer to buffer with description string
6270 **/
203fa3fe 6271static const char *ipr_ioa_info(struct Scsi_Host *host)
1da177e4
LT		 6272{
6273 static char buffer[512];
6274 struct ipr_ioa_cfg *ioa_cfg;
6275 unsigned long lock_flags = 0;
6276
6277 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
6278
6279 spin_lock_irqsave(host->host_lock, lock_flags);
6280 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
6281 spin_unlock_irqrestore(host->host_lock, lock_flags);
6282
6283 return buffer;
6284}
6285
6286static struct scsi_host_template driver_template = {
6287 .module = THIS_MODULE,
6288 .name = "IPR",
6289 .info = ipr_ioa_info,
35a39691 6290 .ioctl = ipr_ioctl,
1da177e4
LT		 6291 .queuecommand = ipr_queuecommand,
6292 .eh_abort_handler = ipr_eh_abort,
6293 .eh_device_reset_handler = ipr_eh_dev_reset,
6294 .eh_host_reset_handler = ipr_eh_host_reset,
6295 .slave_alloc = ipr_slave_alloc,
6296 .slave_configure = ipr_slave_configure,
6297 .slave_destroy = ipr_slave_destroy,
f688f96d 6298 .scan_finished = ipr_scan_finished,
35a39691
BK		 6299 .target_alloc = ipr_target_alloc,
6300 .target_destroy = ipr_target_destroy,
1da177e4 6301 .change_queue_depth = ipr_change_queue_depth,
1da177e4
LT		 6302 .bios_param = ipr_biosparam,
6303 .can_queue = IPR_MAX_COMMANDS,
6304 .this_id = -1,
6305 .sg_tablesize = IPR_MAX_SGLIST,
6306 .max_sectors = IPR_IOA_MAX_SECTORS,
6307 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
6308 .use_clustering = ENABLE_CLUSTERING,
6309 .shost_attrs = ipr_ioa_attrs,
6310 .sdev_attrs = ipr_dev_attrs,
54b2b50c
MP		 6311 .proc_name = IPR_NAME,
6312 .no_write_same = 1,
2ecb204d 6313 .use_blk_tags = 1,
1da177e4
LT		 6314};
6315
35a39691
BK		 6316/**
6317 * ipr_ata_phy_reset - libata phy_reset handler
6318 * @ap: ata port to reset
6319 *
6320 **/
6321static void ipr_ata_phy_reset(struct ata_port *ap)
6322{
6323 unsigned long flags;
6324 struct ipr_sata_port *sata_port = ap->private_data;
6325 struct ipr_resource_entry *res = sata_port->res;
6326 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6327 int rc;
6328
6329 ENTER;
6330 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
203fa3fe 6331 while (ioa_cfg->in_reset_reload) {
35a39691
BK		 6332 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6333 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6334 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6335 }
6336
56d6aa33 6337 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
35a39691
BK		 6338 goto out_unlock;
6339
6340 rc = ipr_device_reset(ioa_cfg, res);
6341
6342 if (rc) {
3e4ec344 6343 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 6344 goto out_unlock;
6345 }
6346
3e7ebdfa
WB		 6347 ap->link.device[0].class = res->ata_class;
6348 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
3e4ec344 6349 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 6350
6351out_unlock:
6352 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6353 LEAVE;
6354}
6355
6356/**
6357 * ipr_ata_post_internal - Cleanup after an internal command
6358 * @qc: ATA queued command
6359 *
6360 * Return value:
6361 * none
6362 **/
6363static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
6364{
6365 struct ipr_sata_port *sata_port = qc->ap->private_data;
6366 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6367 struct ipr_cmnd *ipr_cmd;
05a6538a 6368 struct ipr_hrr_queue *hrrq;
35a39691
BK		 6369 unsigned long flags;
6370
6371 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
203fa3fe 6372 while (ioa_cfg->in_reset_reload) {
73d98ff0
BK		 6373 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6374 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6375 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6376 }
6377
05a6538a 6378 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 6379 spin_lock(&hrrq->_lock);
05a6538a 6380 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
6381 if (ipr_cmd->qc == qc) {
6382 ipr_device_reset(ioa_cfg, sata_port->res);
6383 break;
6384 }
35a39691 6385 }
56d6aa33 6386 spin_unlock(&hrrq->_lock);
35a39691
BK		 6387 }
6388 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6389}
6390
35a39691
BK		 6391/**
6392 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6393 * @regs: destination
6394 * @tf: source ATA taskfile
6395 *
6396 * Return value:
6397 * none
6398 **/
6399static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6400 struct ata_taskfile *tf)
6401{
6402 regs->feature = tf->feature;
6403 regs->nsect = tf->nsect;
6404 regs->lbal = tf->lbal;
6405 regs->lbam = tf->lbam;
6406 regs->lbah = tf->lbah;
6407 regs->device = tf->device;
6408 regs->command = tf->command;
6409 regs->hob_feature = tf->hob_feature;
6410 regs->hob_nsect = tf->hob_nsect;
6411 regs->hob_lbal = tf->hob_lbal;
6412 regs->hob_lbam = tf->hob_lbam;
6413 regs->hob_lbah = tf->hob_lbah;
6414 regs->ctl = tf->ctl;
6415}
6416
6417/**
6418 * ipr_sata_done - done function for SATA commands
6419 * @ipr_cmd: ipr command struct
6420 *
6421 * This function is invoked by the interrupt handler for
6422 * ops generated by the SCSI mid-layer to SATA devices
6423 *
6424 * Return value:
6425 * none
6426 **/
6427static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6428{
6429 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6430 struct ata_queued_cmd *qc = ipr_cmd->qc;
6431 struct ipr_sata_port *sata_port = qc->ap->private_data;
6432 struct ipr_resource_entry *res = sata_port->res;
96d21f00 6433 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
35a39691 6434
56d6aa33 6435 spin_lock(&ipr_cmd->hrrq->_lock);
96d21f00
WB		 6436 if (ipr_cmd->ioa_cfg->sis64)
6437 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6438 sizeof(struct ipr_ioasa_gata));
6439 else
6440 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6441 sizeof(struct ipr_ioasa_gata));
35a39691
BK		 6442 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6443
96d21f00 6444 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
3e7ebdfa 6445 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
35a39691
BK		 6446
6447 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
96d21f00 6448 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
35a39691 6449 else
96d21f00 6450 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
05a6538a 6451 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
56d6aa33 6452 spin_unlock(&ipr_cmd->hrrq->_lock);
35a39691
BK		 6453 ata_qc_complete(qc);
6454}
6455
a32c055f
WB		 6456/**
6457 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6458 * @ipr_cmd: ipr command struct
6459 * @qc: ATA queued command
6460 *
6461 **/
6462static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6463 struct ata_queued_cmd *qc)
6464{
6465 u32 ioadl_flags = 0;
6466 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1ac7c26d 6467 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ata_ioadl.ioadl64;
a32c055f
WB		 6468 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6469 int len = qc->nbytes;
6470 struct scatterlist *sg;
6471 unsigned int si;
6472 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6473
6474 if (len == 0)
6475 return;
6476
6477 if (qc->dma_dir == DMA_TO_DEVICE) {
6478 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6479 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6480 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6481 ioadl_flags = IPR_IOADL_FLAGS_READ;
6482
6483 ioarcb->data_transfer_length = cpu_to_be32(len);
6484 ioarcb->ioadl_len =
6485 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6486 ioarcb->u.sis64_addr_data.data_ioadl_addr =
1ac7c26d 6487 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl.ioadl64));
a32c055f
WB		 6488
6489 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6490 ioadl64->flags = cpu_to_be32(ioadl_flags);
6491 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6492 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6493
6494 last_ioadl64 = ioadl64;
6495 ioadl64++;
6496 }
6497
6498 if (likely(last_ioadl64))
6499 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6500}
6501
35a39691
BK		 6502/**
6503 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6504 * @ipr_cmd: ipr command struct
6505 * @qc: ATA queued command
6506 *
6507 **/
6508static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6509 struct ata_queued_cmd *qc)
6510{
6511 u32 ioadl_flags = 0;
6512 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 6513 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3be6cbd7 6514 struct ipr_ioadl_desc *last_ioadl = NULL;
dde20207 6515 int len = qc->nbytes;
35a39691 6516 struct scatterlist *sg;
ff2aeb1e 6517 unsigned int si;
35a39691
BK		 6518
6519 if (len == 0)
6520 return;
6521
6522 if (qc->dma_dir == DMA_TO_DEVICE) {
6523 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6524 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 6525 ioarcb->data_transfer_length = cpu_to_be32(len);
6526 ioarcb->ioadl_len =
35a39691
BK		 6527 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6528 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6529 ioadl_flags = IPR_IOADL_FLAGS_READ;
6530 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6531 ioarcb->read_ioadl_len =
6532 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6533 }
6534
ff2aeb1e 6535 for_each_sg(qc->sg, sg, qc->n_elem, si) {
35a39691
BK		 6536 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6537 ioadl->address = cpu_to_be32(sg_dma_address(sg));
3be6cbd7
JG		 6538
6539 last_ioadl = ioadl;
6540 ioadl++;
35a39691 6541 }
3be6cbd7
JG		 6542
6543 if (likely(last_ioadl))
6544 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
35a39691
BK		 6545}
6546
56d6aa33 6547/**
6548 * ipr_qc_defer - Get a free ipr_cmd
6549 * @qc: queued command
6550 *
6551 * Return value:
6552 * 0 if success
6553 **/
6554static int ipr_qc_defer(struct ata_queued_cmd *qc)
6555{
6556 struct ata_port *ap = qc->ap;
6557 struct ipr_sata_port *sata_port = ap->private_data;
6558 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6559 struct ipr_cmnd *ipr_cmd;
6560 struct ipr_hrr_queue *hrrq;
6561 int hrrq_id;
6562
6563 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6564 hrrq = &ioa_cfg->hrrq[hrrq_id];
6565
6566 qc->lldd_task = NULL;
6567 spin_lock(&hrrq->_lock);
6568 if (unlikely(hrrq->ioa_is_dead)) {
6569 spin_unlock(&hrrq->_lock);
6570 return 0;
6571 }
6572
6573 if (unlikely(!hrrq->allow_cmds)) {
6574 spin_unlock(&hrrq->_lock);
6575 return ATA_DEFER_LINK;
6576 }
6577
6578 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6579 if (ipr_cmd == NULL) {
6580 spin_unlock(&hrrq->_lock);
6581 return ATA_DEFER_LINK;
6582 }
6583
6584 qc->lldd_task = ipr_cmd;
6585 spin_unlock(&hrrq->_lock);
6586 return 0;
6587}
6588
35a39691
BK		 6589/**
6590 * ipr_qc_issue - Issue a SATA qc to a device
6591 * @qc: queued command
6592 *
6593 * Return value:
6594 * 0 if success
6595 **/
6596static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6597{
6598 struct ata_port *ap = qc->ap;
6599 struct ipr_sata_port *sata_port = ap->private_data;
6600 struct ipr_resource_entry *res = sata_port->res;
6601 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6602 struct ipr_cmnd *ipr_cmd;
6603 struct ipr_ioarcb *ioarcb;
6604 struct ipr_ioarcb_ata_regs *regs;
6605
56d6aa33 6606 if (qc->lldd_task == NULL)
6607 ipr_qc_defer(qc);
6608
6609 ipr_cmd = qc->lldd_task;
6610 if (ipr_cmd == NULL)
0feeed82 6611 return AC_ERR_SYSTEM;
35a39691 6612
56d6aa33 6613 qc->lldd_task = NULL;
6614 spin_lock(&ipr_cmd->hrrq->_lock);
6615 if (unlikely(!ipr_cmd->hrrq->allow_cmds ||
6616 ipr_cmd->hrrq->ioa_is_dead)) {
6617 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6618 spin_unlock(&ipr_cmd->hrrq->_lock);
6619 return AC_ERR_SYSTEM;
6620 }
6621
05a6538a 6622 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
35a39691 6623 ioarcb = &ipr_cmd->ioarcb;
35a39691 6624
a32c055f
WB		 6625 if (ioa_cfg->sis64) {
6626 regs = &ipr_cmd->i.ata_ioadl.regs;
6627 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6628 } else
6629 regs = &ioarcb->u.add_data.u.regs;
6630
6631 memset(regs, 0, sizeof(*regs));
6632 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
35a39691 6633
56d6aa33 6634 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
35a39691
BK		 6635 ipr_cmd->qc = qc;
6636 ipr_cmd->done = ipr_sata_done;
3e7ebdfa 6637 ipr_cmd->ioarcb.res_handle = res->res_handle;
35a39691
BK		 6638 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6639 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6640 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
dde20207 6641 ipr_cmd->dma_use_sg = qc->n_elem;
35a39691 6642
a32c055f
WB		 6643 if (ioa_cfg->sis64)
6644 ipr_build_ata_ioadl64(ipr_cmd, qc);
6645 else
6646 ipr_build_ata_ioadl(ipr_cmd, qc);
6647
35a39691
BK		 6648 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6649 ipr_copy_sata_tf(regs, &qc->tf);
6650 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
3e7ebdfa 6651 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
35a39691
BK		 6652
6653 switch (qc->tf.protocol) {
6654 case ATA_PROT_NODATA:
6655 case ATA_PROT_PIO:
6656 break;
6657
6658 case ATA_PROT_DMA:
6659 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6660 break;
6661
0dc36888
TH		 6662 case ATAPI_PROT_PIO:
6663 case ATAPI_PROT_NODATA:
35a39691
BK		 6664 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6665 break;
6666
0dc36888 6667 case ATAPI_PROT_DMA:
35a39691
BK		 6668 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6669 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6670 break;
6671
6672 default:
6673 WARN_ON(1);
56d6aa33 6674 spin_unlock(&ipr_cmd->hrrq->_lock);
0feeed82 6675 return AC_ERR_INVALID;
35a39691
BK		 6676 }
6677
a32c055f 6678 ipr_send_command(ipr_cmd);
56d6aa33 6679 spin_unlock(&ipr_cmd->hrrq->_lock);
a32c055f 6680
35a39691
BK		 6681 return 0;
6682}
6683
4c9bf4e7
TH		 6684/**
6685 * ipr_qc_fill_rtf - Read result TF
6686 * @qc: ATA queued command
6687 *
6688 * Return value:
6689 * true
6690 **/
6691static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6692{
6693 struct ipr_sata_port *sata_port = qc->ap->private_data;
6694 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6695 struct ata_taskfile *tf = &qc->result_tf;
6696
6697 tf->feature = g->error;
6698 tf->nsect = g->nsect;
6699 tf->lbal = g->lbal;
6700 tf->lbam = g->lbam;
6701 tf->lbah = g->lbah;
6702 tf->device = g->device;
6703 tf->command = g->status;
6704 tf->hob_nsect = g->hob_nsect;
6705 tf->hob_lbal = g->hob_lbal;
6706 tf->hob_lbam = g->hob_lbam;
6707 tf->hob_lbah = g->hob_lbah;
4c9bf4e7
TH		 6708
6709 return true;
6710}
6711
35a39691 6712static struct ata_port_operations ipr_sata_ops = {
35a39691 6713 .phy_reset = ipr_ata_phy_reset,
a1efdaba 6714 .hardreset = ipr_sata_reset,
35a39691 6715 .post_internal_cmd = ipr_ata_post_internal,
35a39691 6716 .qc_prep = ata_noop_qc_prep,
56d6aa33 6717 .qc_defer = ipr_qc_defer,
35a39691 6718 .qc_issue = ipr_qc_issue,
4c9bf4e7 6719 .qc_fill_rtf = ipr_qc_fill_rtf,
35a39691
BK		 6720 .port_start = ata_sas_port_start,
6721 .port_stop = ata_sas_port_stop
6722};
6723
6724static struct ata_port_info sata_port_info = {
9cbe056f 6725 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
0f2e0330
SS		 6726 .pio_mask = ATA_PIO4_ONLY,
6727 .mwdma_mask = ATA_MWDMA2,
6728 .udma_mask = ATA_UDMA6,
35a39691
BK		 6729 .port_ops = &ipr_sata_ops
6730};
6731
1da177e4
LT		 6732#ifdef CONFIG_PPC_PSERIES
6733static const u16 ipr_blocked_processors[] = {
d3dbeef6
ME		 6734 PVR_NORTHSTAR,
6735 PVR_PULSAR,
6736 PVR_POWER4,
6737 PVR_ICESTAR,
6738 PVR_SSTAR,
6739 PVR_POWER4p,
6740 PVR_630,
6741 PVR_630p
1da177e4
LT		 6742};
6743
6744/**
6745 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6746 * @ioa_cfg: ioa cfg struct
6747 *
6748 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6749 * certain pSeries hardware. This function determines if the given
6750 * adapter is in one of these confgurations or not.
6751 *
6752 * Return value:
6753 * 1 if adapter is not supported / 0 if adapter is supported
6754 **/
6755static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6756{
1da177e4
LT		 6757 int i;
6758
44c10138 6759 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
203fa3fe 6760 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) {
d3dbeef6 6761 if (pvr_version_is(ipr_blocked_processors[i]))
44c10138 6762 return 1;
1da177e4
LT		 6763 }
6764 }
6765 return 0;
6766}
6767#else
6768#define ipr_invalid_adapter(ioa_cfg) 0
6769#endif
6770
6771/**
6772 * ipr_ioa_bringdown_done - IOA bring down completion.
6773 * @ipr_cmd: ipr command struct
6774 *
6775 * This function processes the completion of an adapter bring down.
6776 * It wakes any reset sleepers.
6777 *
6778 * Return value:
6779 * IPR_RC_JOB_RETURN
6780 **/
6781static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6782{
6783 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96b04db9 6784 int i;
1da177e4
LT		 6785
6786 ENTER;
bfae7820
BK		 6787 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
6788 ipr_trace;
6789 spin_unlock_irq(ioa_cfg->host->host_lock);
6790 scsi_unblock_requests(ioa_cfg->host);
6791 spin_lock_irq(ioa_cfg->host->host_lock);
6792 }
6793
1da177e4
LT		 6794 ioa_cfg->in_reset_reload = 0;
6795 ioa_cfg->reset_retries = 0;
96b04db9 6796 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
6797 spin_lock(&ioa_cfg->hrrq[i]._lock);
6798 ioa_cfg->hrrq[i].ioa_is_dead = 1;
6799 spin_unlock(&ioa_cfg->hrrq[i]._lock);
6800 }
6801 wmb();
6802
05a6538a 6803 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4 6804 wake_up_all(&ioa_cfg->reset_wait_q);
1da177e4
LT		 6805 LEAVE;
6806
6807 return IPR_RC_JOB_RETURN;
6808}
6809
6810/**
6811 * ipr_ioa_reset_done - IOA reset completion.
6812 * @ipr_cmd: ipr command struct
6813 *
6814 * This function processes the completion of an adapter reset.
6815 * It schedules any necessary mid-layer add/removes and
6816 * wakes any reset sleepers.
6817 *
6818 * Return value:
6819 * IPR_RC_JOB_RETURN
6820 **/
6821static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
6822{
6823 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6824 struct ipr_resource_entry *res;
6825 struct ipr_hostrcb *hostrcb, *temp;
56d6aa33 6826 int i = 0, j;
1da177e4
LT		 6827
6828 ENTER;
6829 ioa_cfg->in_reset_reload = 0;
56d6aa33 6830 for (j = 0; j < ioa_cfg->hrrq_num; j++) {
6831 spin_lock(&ioa_cfg->hrrq[j]._lock);
6832 ioa_cfg->hrrq[j].allow_cmds = 1;
6833 spin_unlock(&ioa_cfg->hrrq[j]._lock);
6834 }
6835 wmb();
1da177e4 6836 ioa_cfg->reset_cmd = NULL;
3d1d0da6 6837 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
1da177e4
LT		 6838
6839 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
f688f96d 6840 if (res->add_to_ml || res->del_from_ml) {
1da177e4
LT		 6841 ipr_trace;
6842 break;
6843 }
6844 }
6845 schedule_work(&ioa_cfg->work_q);
6846
6847 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
6848 list_del(&hostrcb->queue);
6849 if (i++ < IPR_NUM_LOG_HCAMS)
6850 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
6851 else
6852 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
6853 }
6854
6bb04170 6855 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
1da177e4
LT		 6856 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
6857
6858 ioa_cfg->reset_retries = 0;
05a6538a 6859 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 6860 wake_up_all(&ioa_cfg->reset_wait_q);
6861
30237853 6862 spin_unlock(ioa_cfg->host->host_lock);
1da177e4 6863 scsi_unblock_requests(ioa_cfg->host);
30237853 6864 spin_lock(ioa_cfg->host->host_lock);
1da177e4 6865
56d6aa33 6866 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
1da177e4
LT		 6867 scsi_block_requests(ioa_cfg->host);
6868
f688f96d 6869 schedule_work(&ioa_cfg->work_q);
1da177e4
LT		 6870 LEAVE;
6871 return IPR_RC_JOB_RETURN;
6872}
6873
6874/**
6875 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
6876 * @supported_dev: supported device struct
6877 * @vpids: vendor product id struct
6878 *
6879 * Return value:
6880 * none
6881 **/
6882static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
6883 struct ipr_std_inq_vpids *vpids)
6884{
6885 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
6886 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
6887 supported_dev->num_records = 1;
6888 supported_dev->data_length =
6889 cpu_to_be16(sizeof(struct ipr_supported_device));
6890 supported_dev->reserved = 0;
6891}
6892
6893/**
6894 * ipr_set_supported_devs - Send Set Supported Devices for a device
6895 * @ipr_cmd: ipr command struct
6896 *
a32c055f 6897 * This function sends a Set Supported Devices to the adapter
1da177e4
LT		 6898 *
6899 * Return value:
6900 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6901 **/
6902static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
6903{
6904 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6905 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
1da177e4
LT		 6906 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6907 struct ipr_resource_entry *res = ipr_cmd->u.res;
6908
6909 ipr_cmd->job_step = ipr_ioa_reset_done;
6910
6911 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
e4fbf44e 6912 if (!ipr_is_scsi_disk(res))
1da177e4
LT		 6913 continue;
6914
6915 ipr_cmd->u.res = res;
3e7ebdfa 6916 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
1da177e4
LT		 6917
6918 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6919 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6920 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6921
6922 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
3e7ebdfa 6923 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
1da177e4
LT		 6924 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
6925 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
6926
a32c055f
WB		 6927 ipr_init_ioadl(ipr_cmd,
6928 ioa_cfg->vpd_cbs_dma +
6929 offsetof(struct ipr_misc_cbs, supp_dev),
6930 sizeof(struct ipr_supported_device),
6931 IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 6932
6933 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6934 IPR_SET_SUP_DEVICE_TIMEOUT);
6935
3e7ebdfa
WB		 6936 if (!ioa_cfg->sis64)
6937 ipr_cmd->job_step = ipr_set_supported_devs;
05a6538a 6938 LEAVE;
1da177e4
LT		 6939 return IPR_RC_JOB_RETURN;
6940 }
6941
05a6538a 6942 LEAVE;
1da177e4
LT		 6943 return IPR_RC_JOB_CONTINUE;
6944}
6945
6946/**
6947 * ipr_get_mode_page - Locate specified mode page
6948 * @mode_pages: mode page buffer
6949 * @page_code: page code to find
6950 * @len: minimum required length for mode page
6951 *
6952 * Return value:
6953 * pointer to mode page / NULL on failure
6954 **/
6955static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
6956 u32 page_code, u32 len)
6957{
6958 struct ipr_mode_page_hdr *mode_hdr;
6959 u32 page_length;
6960 u32 length;
6961
6962 if (!mode_pages || (mode_pages->hdr.length == 0))
6963 return NULL;
6964
6965 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
6966 mode_hdr = (struct ipr_mode_page_hdr *)
6967 (mode_pages->data + mode_pages->hdr.block_desc_len);
6968
6969 while (length) {
6970 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
6971 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
6972 return mode_hdr;
6973 break;
6974 } else {
6975 page_length = (sizeof(struct ipr_mode_page_hdr) +
6976 mode_hdr->page_length);
6977 length -= page_length;
6978 mode_hdr = (struct ipr_mode_page_hdr *)
6979 ((unsigned long)mode_hdr + page_length);
6980 }
6981 }
6982 return NULL;
6983}
6984
6985/**
6986 * ipr_check_term_power - Check for term power errors
6987 * @ioa_cfg: ioa config struct
6988 * @mode_pages: IOAFP mode pages buffer
6989 *
6990 * Check the IOAFP's mode page 28 for term power errors
6991 *
6992 * Return value:
6993 * nothing
6994 **/
6995static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
6996 struct ipr_mode_pages *mode_pages)
6997{
6998 int i;
6999 int entry_length;
7000 struct ipr_dev_bus_entry *bus;
7001 struct ipr_mode_page28 *mode_page;
7002
7003 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7004 sizeof(struct ipr_mode_page28));
7005
7006 entry_length = mode_page->entry_length;
7007
7008 bus = mode_page->bus;
7009
7010 for (i = 0; i < mode_page->num_entries; i++) {
7011 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
7012 dev_err(&ioa_cfg->pdev->dev,
7013 "Term power is absent on scsi bus %d\n",
7014 bus->res_addr.bus);
7015 }
7016
7017 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
7018 }
7019}
7020
7021/**
7022 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
7023 * @ioa_cfg: ioa config struct
7024 *
7025 * Looks through the config table checking for SES devices. If
7026 * the SES device is in the SES table indicating a maximum SCSI
7027 * bus speed, the speed is limited for the bus.
7028 *
7029 * Return value:
7030 * none
7031 **/
7032static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
7033{
7034 u32 max_xfer_rate;
7035 int i;
7036
7037 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7038 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
7039 ioa_cfg->bus_attr[i].bus_width);
7040
7041 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
7042 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
7043 }
7044}
7045
7046/**
7047 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
7048 * @ioa_cfg: ioa config struct
7049 * @mode_pages: mode page 28 buffer
7050 *
7051 * Updates mode page 28 based on driver configuration
7052 *
7053 * Return value:
7054 * none
7055 **/
7056static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
203fa3fe 7057 struct ipr_mode_pages *mode_pages)
1da177e4
LT		 7058{
7059 int i, entry_length;
7060 struct ipr_dev_bus_entry *bus;
7061 struct ipr_bus_attributes *bus_attr;
7062 struct ipr_mode_page28 *mode_page;
7063
7064 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7065 sizeof(struct ipr_mode_page28));
7066
7067 entry_length = mode_page->entry_length;
7068
7069 /* Loop for each device bus entry */
7070 for (i = 0, bus = mode_page->bus;
7071 i < mode_page->num_entries;
7072 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
7073 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
7074 dev_err(&ioa_cfg->pdev->dev,
7075 "Invalid resource address reported: 0x%08X\n",
7076 IPR_GET_PHYS_LOC(bus->res_addr));
7077 continue;
7078 }
7079
7080 bus_attr = &ioa_cfg->bus_attr[i];
7081 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
7082 bus->bus_width = bus_attr->bus_width;
7083 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
7084 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
7085 if (bus_attr->qas_enabled)
7086 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
7087 else
7088 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
7089 }
7090}
7091
7092/**
7093 * ipr_build_mode_select - Build a mode select command
7094 * @ipr_cmd: ipr command struct
7095 * @res_handle: resource handle to send command to
7096 * @parm: Byte 2 of Mode Sense command
7097 * @dma_addr: DMA buffer address
7098 * @xfer_len: data transfer length
7099 *
7100 * Return value:
7101 * none
7102 **/
7103static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
a32c055f
WB		 7104 __be32 res_handle, u8 parm,
7105 dma_addr_t dma_addr, u8 xfer_len)
1da177e4 7106{
1da177e4
LT		 7107 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7108
7109 ioarcb->res_handle = res_handle;
7110 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7111 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7112 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
7113 ioarcb->cmd_pkt.cdb[1] = parm;
7114 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7115
a32c055f 7116 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 7117}
7118
7119/**
7120 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
7121 * @ipr_cmd: ipr command struct
7122 *
7123 * This function sets up the SCSI bus attributes and sends
7124 * a Mode Select for Page 28 to activate them.
7125 *
7126 * Return value:
7127 * IPR_RC_JOB_RETURN
7128 **/
7129static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
7130{
7131 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7132 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7133 int length;
7134
7135 ENTER;
4733804c
BK		 7136 ipr_scsi_bus_speed_limit(ioa_cfg);
7137 ipr_check_term_power(ioa_cfg, mode_pages);
7138 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
7139 length = mode_pages->hdr.length + 1;
7140 mode_pages->hdr.length = 0;
1da177e4
LT		 7141
7142 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7143 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7144 length);
7145
f72919ec
WB		 7146 ipr_cmd->job_step = ipr_set_supported_devs;
7147 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7148 struct ipr_resource_entry, queue);
1da177e4
LT		 7149 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7150
7151 LEAVE;
7152 return IPR_RC_JOB_RETURN;
7153}
7154
7155/**
7156 * ipr_build_mode_sense - Builds a mode sense command
7157 * @ipr_cmd: ipr command struct
7158 * @res: resource entry struct
7159 * @parm: Byte 2 of mode sense command
7160 * @dma_addr: DMA address of mode sense buffer
7161 * @xfer_len: Size of DMA buffer
7162 *
7163 * Return value:
7164 * none
7165 **/
7166static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
7167 __be32 res_handle,
a32c055f 7168 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
1da177e4 7169{
1da177e4
LT		 7170 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7171
7172 ioarcb->res_handle = res_handle;
7173 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
7174 ioarcb->cmd_pkt.cdb[2] = parm;
7175 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7176 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7177
a32c055f 7178 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7179}
7180
dfed823e
BK		 7181/**
7182 * ipr_reset_cmd_failed - Handle failure of IOA reset command
7183 * @ipr_cmd: ipr command struct
7184 *
7185 * This function handles the failure of an IOA bringup command.
7186 *
7187 * Return value:
7188 * IPR_RC_JOB_RETURN
7189 **/
7190static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
7191{
7192 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 7193 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e
BK		 7194
7195 dev_err(&ioa_cfg->pdev->dev,
7196 "0x%02X failed with IOASC: 0x%08X\n",
7197 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
7198
7199 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
05a6538a 7200 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
dfed823e
BK		 7201 return IPR_RC_JOB_RETURN;
7202}
7203
7204/**
7205 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
7206 * @ipr_cmd: ipr command struct
7207 *
7208 * This function handles the failure of a Mode Sense to the IOAFP.
7209 * Some adapters do not handle all mode pages.
7210 *
7211 * Return value:
7212 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7213 **/
7214static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
7215{
f72919ec 7216 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 7217 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e
BK		 7218
7219 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
f72919ec
WB		 7220 ipr_cmd->job_step = ipr_set_supported_devs;
7221 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7222 struct ipr_resource_entry, queue);
dfed823e
BK		 7223 return IPR_RC_JOB_CONTINUE;
7224 }
7225
7226 return ipr_reset_cmd_failed(ipr_cmd);
7227}
7228
1da177e4
LT		 7229/**
7230 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
7231 * @ipr_cmd: ipr command struct
7232 *
7233 * This function send a Page 28 mode sense to the IOA to
7234 * retrieve SCSI bus attributes.
7235 *
7236 * Return value:
7237 * IPR_RC_JOB_RETURN
7238 **/
7239static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
7240{
7241 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7242
7243 ENTER;
7244 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7245 0x28, ioa_cfg->vpd_cbs_dma +
7246 offsetof(struct ipr_misc_cbs, mode_pages),
7247 sizeof(struct ipr_mode_pages));
7248
7249 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
dfed823e 7250 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
1da177e4
LT		 7251
7252 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7253
7254 LEAVE;
7255 return IPR_RC_JOB_RETURN;
7256}
7257
ac09c349
BK		 7258/**
7259 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
7260 * @ipr_cmd: ipr command struct
7261 *
7262 * This function enables dual IOA RAID support if possible.
7263 *
7264 * Return value:
7265 * IPR_RC_JOB_RETURN
7266 **/
7267static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
7268{
7269 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7270 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7271 struct ipr_mode_page24 *mode_page;
7272 int length;
7273
7274 ENTER;
7275 mode_page = ipr_get_mode_page(mode_pages, 0x24,
7276 sizeof(struct ipr_mode_page24));
7277
7278 if (mode_page)
7279 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
7280
7281 length = mode_pages->hdr.length + 1;
7282 mode_pages->hdr.length = 0;
7283
7284 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7285 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7286 length);
7287
7288 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7289 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7290
7291 LEAVE;
7292 return IPR_RC_JOB_RETURN;
7293}
7294
7295/**
7296 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
7297 * @ipr_cmd: ipr command struct
7298 *
7299 * This function handles the failure of a Mode Sense to the IOAFP.
7300 * Some adapters do not handle all mode pages.
7301 *
7302 * Return value:
7303 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7304 **/
7305static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
7306{
96d21f00 7307 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
ac09c349
BK		 7308
7309 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7310 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7311 return IPR_RC_JOB_CONTINUE;
7312 }
7313
7314 return ipr_reset_cmd_failed(ipr_cmd);
7315}
7316
7317/**
7318 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
7319 * @ipr_cmd: ipr command struct
7320 *
7321 * This function send a mode sense to the IOA to retrieve
7322 * the IOA Advanced Function Control mode page.
7323 *
7324 * Return value:
7325 * IPR_RC_JOB_RETURN
7326 **/
7327static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
7328{
7329 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7330
7331 ENTER;
7332 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7333 0x24, ioa_cfg->vpd_cbs_dma +
7334 offsetof(struct ipr_misc_cbs, mode_pages),
7335 sizeof(struct ipr_mode_pages));
7336
7337 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
7338 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
7339
7340 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7341
7342 LEAVE;
7343 return IPR_RC_JOB_RETURN;
7344}
7345
1da177e4
LT		 7346/**
7347 * ipr_init_res_table - Initialize the resource table
7348 * @ipr_cmd: ipr command struct
7349 *
7350 * This function looks through the existing resource table, comparing
7351 * it with the config table. This function will take care of old/new
7352 * devices and schedule adding/removing them from the mid-layer
7353 * as appropriate.
7354 *
7355 * Return value:
7356 * IPR_RC_JOB_CONTINUE
7357 **/
7358static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
7359{
7360 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7361 struct ipr_resource_entry *res, *temp;
3e7ebdfa
WB		 7362 struct ipr_config_table_entry_wrapper cfgtew;
7363 int entries, found, flag, i;
1da177e4
LT		 7364 LIST_HEAD(old_res);
7365
7366 ENTER;
3e7ebdfa
WB		 7367 if (ioa_cfg->sis64)
7368 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
7369 else
7370 flag = ioa_cfg->u.cfg_table->hdr.flags;
7371
7372 if (flag & IPR_UCODE_DOWNLOAD_REQ)
1da177e4
LT		 7373 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
7374
7375 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
7376 list_move_tail(&res->queue, &old_res);
7377
3e7ebdfa 7378 if (ioa_cfg->sis64)
438b0331 7379 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
3e7ebdfa
WB		 7380 else
7381 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
7382
7383 for (i = 0; i < entries; i++) {
7384 if (ioa_cfg->sis64)
7385 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
7386 else
7387 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
1da177e4
LT		 7388 found = 0;
7389
7390 list_for_each_entry_safe(res, temp, &old_res, queue) {
3e7ebdfa 7391 if (ipr_is_same_device(res, &cfgtew)) {
1da177e4
LT		 7392 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7393 found = 1;
7394 break;
7395 }
7396 }
7397
7398 if (!found) {
7399 if (list_empty(&ioa_cfg->free_res_q)) {
7400 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
7401 break;
7402 }
7403
7404 found = 1;
7405 res = list_entry(ioa_cfg->free_res_q.next,
7406 struct ipr_resource_entry, queue);
7407 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
3e7ebdfa 7408 ipr_init_res_entry(res, &cfgtew);
1da177e4 7409 res->add_to_ml = 1;
56115598
WB		 7410 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
7411 res->sdev->allow_restart = 1;
1da177e4
LT		 7412
7413 if (found)
3e7ebdfa 7414 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 7415 }
7416
7417 list_for_each_entry_safe(res, temp, &old_res, queue) {
7418 if (res->sdev) {
7419 res->del_from_ml = 1;
3e7ebdfa 7420 res->res_handle = IPR_INVALID_RES_HANDLE;
1da177e4 7421 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
1da177e4
LT		 7422 }
7423 }
7424
3e7ebdfa
WB		 7425 list_for_each_entry_safe(res, temp, &old_res, queue) {
7426 ipr_clear_res_target(res);
7427 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
7428 }
7429
ac09c349
BK		 7430 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7431 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
7432 else
7433 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
1da177e4
LT		 7434
7435 LEAVE;
7436 return IPR_RC_JOB_CONTINUE;
7437}
7438
7439/**
7440 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
7441 * @ipr_cmd: ipr command struct
7442 *
7443 * This function sends a Query IOA Configuration command
7444 * to the adapter to retrieve the IOA configuration table.
7445 *
7446 * Return value:
7447 * IPR_RC_JOB_RETURN
7448 **/
7449static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
7450{
7451 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7452 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4 7453 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
ac09c349 7454 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
1da177e4
LT		 7455
7456 ENTER;
ac09c349
BK		 7457 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
7458 ioa_cfg->dual_raid = 1;
1da177e4
LT		 7459 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7460 ucode_vpd->major_release, ucode_vpd->card_type,
7461 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7462 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7463 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7464
7465 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
438b0331 7466 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
3e7ebdfa
WB		 7467 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7468 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
1da177e4 7469
3e7ebdfa 7470 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
a32c055f 7471 IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7472
7473 ipr_cmd->job_step = ipr_init_res_table;
7474
7475 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7476
7477 LEAVE;
7478 return IPR_RC_JOB_RETURN;
7479}
7480
7481/**
7482 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7483 * @ipr_cmd: ipr command struct
7484 *
7485 * This utility function sends an inquiry to the adapter.
7486 *
7487 * Return value:
7488 * none
7489 **/
7490static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
a32c055f 7491 dma_addr_t dma_addr, u8 xfer_len)
1da177e4
LT		 7492{
7493 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 7494
7495 ENTER;
7496 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7497 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7498
7499 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
7500 ioarcb->cmd_pkt.cdb[1] = flags;
7501 ioarcb->cmd_pkt.cdb[2] = page;
7502 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7503
a32c055f 7504 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7505
7506 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7507 LEAVE;
7508}
7509
62275040
BK		 7510/**
7511 * ipr_inquiry_page_supported - Is the given inquiry page supported
7512 * @page0: inquiry page 0 buffer
7513 * @page: page code.
7514 *
7515 * This function determines if the specified inquiry page is supported.
7516 *
7517 * Return value:
7518 * 1 if page is supported / 0 if not
7519 **/
7520static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7521{
7522 int i;
7523
7524 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7525 if (page0->page[i] == page)
7526 return 1;
7527
7528 return 0;
7529}
7530
ac09c349
BK		 7531/**
7532 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7533 * @ipr_cmd: ipr command struct
7534 *
7535 * This function sends a Page 0xD0 inquiry to the adapter
7536 * to retrieve adapter capabilities.
7537 *
7538 * Return value:
7539 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7540 **/
7541static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7542{
7543 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7544 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7545 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7546
7547 ENTER;
7548 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7549 memset(cap, 0, sizeof(*cap));
7550
7551 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7552 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7553 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7554 sizeof(struct ipr_inquiry_cap));
7555 return IPR_RC_JOB_RETURN;
7556 }
7557
7558 LEAVE;
7559 return IPR_RC_JOB_CONTINUE;
7560}
7561
1da177e4
LT		 7562/**
7563 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7564 * @ipr_cmd: ipr command struct
7565 *
7566 * This function sends a Page 3 inquiry to the adapter
7567 * to retrieve software VPD information.
7568 *
7569 * Return value:
7570 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7571 **/
7572static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
62275040
BK		 7573{
7574 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
62275040
BK		 7575
7576 ENTER;
7577
ac09c349 7578 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
62275040
BK		 7579
7580 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7581 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7582 sizeof(struct ipr_inquiry_page3));
7583
7584 LEAVE;
7585 return IPR_RC_JOB_RETURN;
7586}
7587
7588/**
7589 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7590 * @ipr_cmd: ipr command struct
7591 *
7592 * This function sends a Page 0 inquiry to the adapter
7593 * to retrieve supported inquiry pages.
7594 *
7595 * Return value:
7596 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7597 **/
7598static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7599{
7600 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7601 char type[5];
7602
7603 ENTER;
7604
7605 /* Grab the type out of the VPD and store it away */
7606 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7607 type[4] = '\0';
7608 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7609
f688f96d
BK		 7610 if (ipr_invalid_adapter(ioa_cfg)) {
7611 dev_err(&ioa_cfg->pdev->dev,
7612 "Adapter not supported in this hardware configuration.\n");
7613
7614 if (!ipr_testmode) {
7615 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
7616 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7617 list_add_tail(&ipr_cmd->queue,
7618 &ioa_cfg->hrrq->hrrq_free_q);
7619 return IPR_RC_JOB_RETURN;
7620 }
7621 }
7622
62275040 7623 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
1da177e4 7624
62275040
BK		 7625 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7626 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7627 sizeof(struct ipr_inquiry_page0));
1da177e4
LT		 7628
7629 LEAVE;
7630 return IPR_RC_JOB_RETURN;
7631}
7632
7633/**
7634 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7635 * @ipr_cmd: ipr command struct
7636 *
7637 * This function sends a standard inquiry to the adapter.
7638 *
7639 * Return value:
7640 * IPR_RC_JOB_RETURN
7641 **/
7642static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7643{
7644 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7645
7646 ENTER;
62275040 7647 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
1da177e4
LT		 7648
7649 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7650 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7651 sizeof(struct ipr_ioa_vpd));
7652
7653 LEAVE;
7654 return IPR_RC_JOB_RETURN;
7655}
7656
7657/**
214777ba 7658 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
1da177e4
LT		 7659 * @ipr_cmd: ipr command struct
7660 *
7661 * This function send an Identify Host Request Response Queue
7662 * command to establish the HRRQ with the adapter.
7663 *
7664 * Return value:
7665 * IPR_RC_JOB_RETURN
7666 **/
214777ba 7667static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7668{
7669 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7670 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
05a6538a 7671 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 7672
7673 ENTER;
05a6538a 7674 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
1da177e4
LT		 7675 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7676
56d6aa33 7677 if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) {
7678 hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index];
1da177e4 7679
05a6538a 7680 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7681 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1da177e4 7682
05a6538a 7683 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7684 if (ioa_cfg->sis64)
7685 ioarcb->cmd_pkt.cdb[1] = 0x1;
214777ba 7686
05a6538a 7687 if (ioa_cfg->nvectors == 1)
7688 ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE;
7689 else
7690 ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE;
7691
7692 ioarcb->cmd_pkt.cdb[2] =
7693 ((u64) hrrq->host_rrq_dma >> 24) & 0xff;
7694 ioarcb->cmd_pkt.cdb[3] =
7695 ((u64) hrrq->host_rrq_dma >> 16) & 0xff;
7696 ioarcb->cmd_pkt.cdb[4] =
7697 ((u64) hrrq->host_rrq_dma >> 8) & 0xff;
7698 ioarcb->cmd_pkt.cdb[5] =
7699 ((u64) hrrq->host_rrq_dma) & 0xff;
7700 ioarcb->cmd_pkt.cdb[7] =
7701 ((sizeof(u32) * hrrq->size) >> 8) & 0xff;
7702 ioarcb->cmd_pkt.cdb[8] =
7703 (sizeof(u32) * hrrq->size) & 0xff;
7704
7705 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
56d6aa33 7706 ioarcb->cmd_pkt.cdb[9] =
7707 ioa_cfg->identify_hrrq_index;
1da177e4 7708
05a6538a 7709 if (ioa_cfg->sis64) {
7710 ioarcb->cmd_pkt.cdb[10] =
7711 ((u64) hrrq->host_rrq_dma >> 56) & 0xff;
7712 ioarcb->cmd_pkt.cdb[11] =
7713 ((u64) hrrq->host_rrq_dma >> 48) & 0xff;
7714 ioarcb->cmd_pkt.cdb[12] =
7715 ((u64) hrrq->host_rrq_dma >> 40) & 0xff;
7716 ioarcb->cmd_pkt.cdb[13] =
7717 ((u64) hrrq->host_rrq_dma >> 32) & 0xff;
7718 }
7719
7720 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
56d6aa33 7721 ioarcb->cmd_pkt.cdb[14] =
7722 ioa_cfg->identify_hrrq_index;
05a6538a 7723
7724 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7725 IPR_INTERNAL_TIMEOUT);
7726
56d6aa33 7727 if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num)
7728 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
05a6538a 7729
7730 LEAVE;
7731 return IPR_RC_JOB_RETURN;
05a6538a 7732 }
7733
1da177e4 7734 LEAVE;
05a6538a 7735 return IPR_RC_JOB_CONTINUE;
1da177e4
LT		 7736}
7737
7738/**
7739 * ipr_reset_timer_done - Adapter reset timer function
7740 * @ipr_cmd: ipr command struct
7741 *
7742 * Description: This function is used in adapter reset processing
7743 * for timing events. If the reset_cmd pointer in the IOA
7744 * config struct is not this adapter's we are doing nested
7745 * resets and fail_all_ops will take care of freeing the
7746 * command block.
7747 *
7748 * Return value:
7749 * none
7750 **/
7751static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
7752{
7753 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7754 unsigned long lock_flags = 0;
7755
7756 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7757
7758 if (ioa_cfg->reset_cmd == ipr_cmd) {
7759 list_del(&ipr_cmd->queue);
7760 ipr_cmd->done(ipr_cmd);
7761 }
7762
7763 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7764}
7765
7766/**
7767 * ipr_reset_start_timer - Start a timer for adapter reset job
7768 * @ipr_cmd: ipr command struct
7769 * @timeout: timeout value
7770 *
7771 * Description: This function is used in adapter reset processing
7772 * for timing events. If the reset_cmd pointer in the IOA
7773 * config struct is not this adapter's we are doing nested
7774 * resets and fail_all_ops will take care of freeing the
7775 * command block.
7776 *
7777 * Return value:
7778 * none
7779 **/
7780static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
7781 unsigned long timeout)
7782{
05a6538a 7783
7784 ENTER;
7785 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 7786 ipr_cmd->done = ipr_reset_ioa_job;
7787
7788 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7789 ipr_cmd->timer.expires = jiffies + timeout;
7790 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
7791 add_timer(&ipr_cmd->timer);
7792}
7793
7794/**
7795 * ipr_init_ioa_mem - Initialize ioa_cfg control block
7796 * @ioa_cfg: ioa cfg struct
7797 *
7798 * Return value:
7799 * nothing
7800 **/
7801static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
7802{
05a6538a 7803 struct ipr_hrr_queue *hrrq;
1da177e4 7804
05a6538a 7805 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 7806 spin_lock(&hrrq->_lock);
05a6538a 7807 memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size);
7808
7809 /* Initialize Host RRQ pointers */
7810 hrrq->hrrq_start = hrrq->host_rrq;
7811 hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1];
7812 hrrq->hrrq_curr = hrrq->hrrq_start;
7813 hrrq->toggle_bit = 1;
56d6aa33 7814 spin_unlock(&hrrq->_lock);
05a6538a 7815 }
56d6aa33 7816 wmb();
05a6538a 7817
56d6aa33 7818 ioa_cfg->identify_hrrq_index = 0;
7819 if (ioa_cfg->hrrq_num == 1)
7820 atomic_set(&ioa_cfg->hrrq_index, 0);
7821 else
7822 atomic_set(&ioa_cfg->hrrq_index, 1);
1da177e4
LT		 7823
7824 /* Zero out config table */
3e7ebdfa 7825 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
1da177e4
LT		 7826}
7827
214777ba
WB		 7828/**
7829 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
7830 * @ipr_cmd: ipr command struct
7831 *
7832 * Return value:
7833 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7834 **/
7835static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
7836{
7837 unsigned long stage, stage_time;
7838 u32 feedback;
7839 volatile u32 int_reg;
7840 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7841 u64 maskval = 0;
7842
7843 feedback = readl(ioa_cfg->regs.init_feedback_reg);
7844 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
7845 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
7846
7847 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
7848
7849 /* sanity check the stage_time value */
438b0331
WB		 7850 if (stage_time == 0)
7851 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
7852 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
214777ba
WB		 7853 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
7854 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
7855 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
7856
7857 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
7858 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
7859 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7860 stage_time = ioa_cfg->transop_timeout;
7861 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7862 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
1df79ca4
WB		 7863 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7864 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7865 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7866 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7867 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
7868 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
7869 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7870 return IPR_RC_JOB_CONTINUE;
7871 }
214777ba
WB		 7872 }
7873
7874 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7875 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
7876 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7877 ipr_cmd->done = ipr_reset_ioa_job;
7878 add_timer(&ipr_cmd->timer);
05a6538a 7879
7880 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
214777ba
WB		 7881
7882 return IPR_RC_JOB_RETURN;
7883}
7884
1da177e4
LT		 7885/**
7886 * ipr_reset_enable_ioa - Enable the IOA following a reset.
7887 * @ipr_cmd: ipr command struct
7888 *
7889 * This function reinitializes some control blocks and
7890 * enables destructive diagnostics on the adapter.
7891 *
7892 * Return value:
7893 * IPR_RC_JOB_RETURN
7894 **/
7895static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
7896{
7897 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7898 volatile u32 int_reg;
7be96900 7899 volatile u64 maskval;
56d6aa33 7900 int i;
1da177e4
LT		 7901
7902 ENTER;
214777ba 7903 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
1da177e4
LT		 7904 ipr_init_ioa_mem(ioa_cfg);
7905
56d6aa33 7906 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
7907 spin_lock(&ioa_cfg->hrrq[i]._lock);
7908 ioa_cfg->hrrq[i].allow_interrupts = 1;
7909 spin_unlock(&ioa_cfg->hrrq[i]._lock);
7910 }
7911 wmb();
8701f185
WB		 7912 if (ioa_cfg->sis64) {
7913 /* Set the adapter to the correct endian mode. */
7914 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7915 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7916 }
7917
7be96900 7918 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
1da177e4
LT		 7919
7920 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7921 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
214777ba 7922 ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4
LT		 7923 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7924 return IPR_RC_JOB_CONTINUE;
7925 }
7926
7927 /* Enable destructive diagnostics on IOA */
214777ba
WB		 7928 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
7929
7be96900
WB		 7930 if (ioa_cfg->sis64) {
7931 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7932 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
7933 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
7934 } else
7935 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4 7936
1da177e4
LT		 7937 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7938
7939 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
7940
214777ba
WB		 7941 if (ioa_cfg->sis64) {
7942 ipr_cmd->job_step = ipr_reset_next_stage;
7943 return IPR_RC_JOB_CONTINUE;
7944 }
7945
1da177e4 7946 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
5469cb5b 7947 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
1da177e4
LT		 7948 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7949 ipr_cmd->done = ipr_reset_ioa_job;
7950 add_timer(&ipr_cmd->timer);
05a6538a 7951 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 7952
7953 LEAVE;
7954 return IPR_RC_JOB_RETURN;
7955}
7956
7957/**
7958 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
7959 * @ipr_cmd: ipr command struct
7960 *
7961 * This function is invoked when an adapter dump has run out
7962 * of processing time.
7963 *
7964 * Return value:
7965 * IPR_RC_JOB_CONTINUE
7966 **/
7967static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
7968{
7969 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7970
7971 if (ioa_cfg->sdt_state == GET_DUMP)
41e9a696
BK		 7972 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7973 else if (ioa_cfg->sdt_state == READ_DUMP)
1da177e4
LT		 7974 ioa_cfg->sdt_state = ABORT_DUMP;
7975
4c647e90 7976 ioa_cfg->dump_timeout = 1;
1da177e4
LT		 7977 ipr_cmd->job_step = ipr_reset_alert;
7978
7979 return IPR_RC_JOB_CONTINUE;
7980}
7981
7982/**
7983 * ipr_unit_check_no_data - Log a unit check/no data error log
7984 * @ioa_cfg: ioa config struct
7985 *
7986 * Logs an error indicating the adapter unit checked, but for some
7987 * reason, we were unable to fetch the unit check buffer.
7988 *
7989 * Return value:
7990 * nothing
7991 **/
7992static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
7993{
7994 ioa_cfg->errors_logged++;
7995 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
7996}
7997
7998/**
7999 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
8000 * @ioa_cfg: ioa config struct
8001 *
8002 * Fetches the unit check buffer from the adapter by clocking the data
8003 * through the mailbox register.
8004 *
8005 * Return value:
8006 * nothing
8007 **/
8008static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
8009{
8010 unsigned long mailbox;
8011 struct ipr_hostrcb *hostrcb;
8012 struct ipr_uc_sdt sdt;
8013 int rc, length;
65f56475 8014 u32 ioasc;
1da177e4
LT		 8015
8016 mailbox = readl(ioa_cfg->ioa_mailbox);
8017
dcbad00e 8018 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
1da177e4
LT		 8019 ipr_unit_check_no_data(ioa_cfg);
8020 return;
8021 }
8022
8023 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
8024 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
8025 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
8026
dcbad00e
WB		 8027 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
8028 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
8029 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 8030 ipr_unit_check_no_data(ioa_cfg);
8031 return;
8032 }
8033
8034 /* Find length of the first sdt entry (UC buffer) */
dcbad00e
WB		 8035 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
8036 length = be32_to_cpu(sdt.entry[0].end_token);
8037 else
8038 length = (be32_to_cpu(sdt.entry[0].end_token) -
8039 be32_to_cpu(sdt.entry[0].start_token)) &
8040 IPR_FMT2_MBX_ADDR_MASK;
1da177e4
LT		 8041
8042 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
8043 struct ipr_hostrcb, queue);
8044 list_del(&hostrcb->queue);
8045 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
8046
8047 rc = ipr_get_ldump_data_section(ioa_cfg,
dcbad00e 8048 be32_to_cpu(sdt.entry[0].start_token),
1da177e4
LT		 8049 (__be32 *)&hostrcb->hcam,
8050 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
8051
65f56475 8052 if (!rc) {
1da177e4 8053 ipr_handle_log_data(ioa_cfg, hostrcb);
4565e370 8054 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
65f56475
BK		 8055 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
8056 ioa_cfg->sdt_state == GET_DUMP)
8057 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8058 } else
1da177e4
LT		 8059 ipr_unit_check_no_data(ioa_cfg);
8060
8061 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
8062}
8063
110def85
WB		 8064/**
8065 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
8066 * @ipr_cmd: ipr command struct
8067 *
8068 * Description: This function will call to get the unit check buffer.
8069 *
8070 * Return value:
8071 * IPR_RC_JOB_RETURN
8072 **/
8073static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
8074{
8075 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8076
8077 ENTER;
8078 ioa_cfg->ioa_unit_checked = 0;
8079 ipr_get_unit_check_buffer(ioa_cfg);
8080 ipr_cmd->job_step = ipr_reset_alert;
8081 ipr_reset_start_timer(ipr_cmd, 0);
8082
8083 LEAVE;
8084 return IPR_RC_JOB_RETURN;
8085}
8086
1da177e4
LT		 8087/**
8088 * ipr_reset_restore_cfg_space - Restore PCI config space.
8089 * @ipr_cmd: ipr command struct
8090 *
8091 * Description: This function restores the saved PCI config space of
8092 * the adapter, fails all outstanding ops back to the callers, and
8093 * fetches the dump/unit check if applicable to this reset.
8094 *
8095 * Return value:
8096 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8097 **/
8098static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
8099{
8100 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
630ad831 8101 u32 int_reg;
1da177e4
LT		 8102
8103 ENTER;
99c965dd 8104 ioa_cfg->pdev->state_saved = true;
1d3c16a8 8105 pci_restore_state(ioa_cfg->pdev);
1da177e4
LT		 8106
8107 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
96d21f00 8108 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
1da177e4
LT		 8109 return IPR_RC_JOB_CONTINUE;
8110 }
8111
8112 ipr_fail_all_ops(ioa_cfg);
8113
8701f185
WB		 8114 if (ioa_cfg->sis64) {
8115 /* Set the adapter to the correct endian mode. */
8116 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8117 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8118 }
8119
1da177e4 8120 if (ioa_cfg->ioa_unit_checked) {
110def85
WB		 8121 if (ioa_cfg->sis64) {
8122 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
8123 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
8124 return IPR_RC_JOB_RETURN;
8125 } else {
8126 ioa_cfg->ioa_unit_checked = 0;
8127 ipr_get_unit_check_buffer(ioa_cfg);
8128 ipr_cmd->job_step = ipr_reset_alert;
8129 ipr_reset_start_timer(ipr_cmd, 0);
8130 return IPR_RC_JOB_RETURN;
8131 }
1da177e4
LT		 8132 }
8133
8134 if (ioa_cfg->in_ioa_bringdown) {
8135 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8136 } else {
8137 ipr_cmd->job_step = ipr_reset_enable_ioa;
8138
8139 if (GET_DUMP == ioa_cfg->sdt_state) {
41e9a696 8140 ioa_cfg->sdt_state = READ_DUMP;
4c647e90 8141 ioa_cfg->dump_timeout = 0;
4d4dd706
KSS		 8142 if (ioa_cfg->sis64)
8143 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
8144 else
8145 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
1da177e4
LT		 8146 ipr_cmd->job_step = ipr_reset_wait_for_dump;
8147 schedule_work(&ioa_cfg->work_q);
8148 return IPR_RC_JOB_RETURN;
8149 }
8150 }
8151
438b0331 8152 LEAVE;
1da177e4
LT		 8153 return IPR_RC_JOB_CONTINUE;
8154}
8155
e619e1a7
BK		 8156/**
8157 * ipr_reset_bist_done - BIST has completed on the adapter.
8158 * @ipr_cmd: ipr command struct
8159 *
8160 * Description: Unblock config space and resume the reset process.
8161 *
8162 * Return value:
8163 * IPR_RC_JOB_CONTINUE
8164 **/
8165static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
8166{
fb51ccbf
JK		 8167 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8168
e619e1a7 8169 ENTER;
fb51ccbf
JK		 8170 if (ioa_cfg->cfg_locked)
8171 pci_cfg_access_unlock(ioa_cfg->pdev);
8172 ioa_cfg->cfg_locked = 0;
e619e1a7
BK		 8173 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
8174 LEAVE;
8175 return IPR_RC_JOB_CONTINUE;
8176}
8177
1da177e4
LT		 8178/**
8179 * ipr_reset_start_bist - Run BIST on the adapter.
8180 * @ipr_cmd: ipr command struct
8181 *
8182 * Description: This function runs BIST on the adapter, then delays 2 seconds.
8183 *
8184 * Return value:
8185 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8186 **/
8187static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
8188{
8189 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
cb237ef7 8190 int rc = PCIBIOS_SUCCESSFUL;
1da177e4
LT		 8191
8192 ENTER;
cb237ef7
WB		 8193 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
8194 writel(IPR_UPROCI_SIS64_START_BIST,
8195 ioa_cfg->regs.set_uproc_interrupt_reg32);
8196 else
8197 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
8198
8199 if (rc == PCIBIOS_SUCCESSFUL) {
e619e1a7 8200 ipr_cmd->job_step = ipr_reset_bist_done;
1da177e4
LT		 8201 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8202 rc = IPR_RC_JOB_RETURN;
cb237ef7 8203 } else {
fb51ccbf
JK		 8204 if (ioa_cfg->cfg_locked)
8205 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
8206 ioa_cfg->cfg_locked = 0;
cb237ef7
WB		 8207 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8208 rc = IPR_RC_JOB_CONTINUE;
1da177e4
LT		 8209 }
8210
8211 LEAVE;
8212 return rc;
8213}
8214
463fc696
BK		 8215/**
8216 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
8217 * @ipr_cmd: ipr command struct
8218 *
8219 * Description: This clears PCI reset to the adapter and delays two seconds.
8220 *
8221 * Return value:
8222 * IPR_RC_JOB_RETURN
8223 **/
8224static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
8225{
8226 ENTER;
8227 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
8228 ipr_cmd->job_step = ipr_reset_bist_done;
8229 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8230 LEAVE;
8231 return IPR_RC_JOB_RETURN;
8232}
8233
8234/**
8235 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
8236 * @ipr_cmd: ipr command struct
8237 *
8238 * Description: This asserts PCI reset to the adapter.
8239 *
8240 * Return value:
8241 * IPR_RC_JOB_RETURN
8242 **/
8243static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
8244{
8245 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8246 struct pci_dev *pdev = ioa_cfg->pdev;
8247
8248 ENTER;
463fc696
BK		 8249 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
8250 ipr_cmd->job_step = ipr_reset_slot_reset_done;
8251 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
8252 LEAVE;
8253 return IPR_RC_JOB_RETURN;
8254}
8255
fb51ccbf
JK		 8256/**
8257 * ipr_reset_block_config_access_wait - Wait for permission to block config access
8258 * @ipr_cmd: ipr command struct
8259 *
8260 * Description: This attempts to block config access to the IOA.
8261 *
8262 * Return value:
8263 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8264 **/
8265static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
8266{
8267 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8268 int rc = IPR_RC_JOB_CONTINUE;
8269
8270 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
8271 ioa_cfg->cfg_locked = 1;
8272 ipr_cmd->job_step = ioa_cfg->reset;
8273 } else {
8274 if (ipr_cmd->u.time_left) {
8275 rc = IPR_RC_JOB_RETURN;
8276 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8277 ipr_reset_start_timer(ipr_cmd,
8278 IPR_CHECK_FOR_RESET_TIMEOUT);
8279 } else {
8280 ipr_cmd->job_step = ioa_cfg->reset;
8281 dev_err(&ioa_cfg->pdev->dev,
8282 "Timed out waiting to lock config access. Resetting anyway.\n");
8283 }
8284 }
8285
8286 return rc;
8287}
8288
8289/**
8290 * ipr_reset_block_config_access - Block config access to the IOA
8291 * @ipr_cmd: ipr command struct
8292 *
8293 * Description: This attempts to block config access to the IOA
8294 *
8295 * Return value:
8296 * IPR_RC_JOB_CONTINUE
8297 **/
8298static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
8299{
8300 ipr_cmd->ioa_cfg->cfg_locked = 0;
8301 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
8302 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8303 return IPR_RC_JOB_CONTINUE;
8304}
8305
1da177e4
LT		 8306/**
8307 * ipr_reset_allowed - Query whether or not IOA can be reset
8308 * @ioa_cfg: ioa config struct
8309 *
8310 * Return value:
8311 * 0 if reset not allowed / non-zero if reset is allowed
8312 **/
8313static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
8314{
8315 volatile u32 temp_reg;
8316
8317 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8318 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
8319}
8320
8321/**
8322 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
8323 * @ipr_cmd: ipr command struct
8324 *
8325 * Description: This function waits for adapter permission to run BIST,
8326 * then runs BIST. If the adapter does not give permission after a
8327 * reasonable time, we will reset the adapter anyway. The impact of
8328 * resetting the adapter without warning the adapter is the risk of
8329 * losing the persistent error log on the adapter. If the adapter is
8330 * reset while it is writing to the flash on the adapter, the flash
8331 * segment will have bad ECC and be zeroed.
8332 *
8333 * Return value:
8334 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8335 **/
8336static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
8337{
8338 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8339 int rc = IPR_RC_JOB_RETURN;
8340
8341 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
8342 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8343 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8344 } else {
fb51ccbf 8345 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 8346 rc = IPR_RC_JOB_CONTINUE;
8347 }
8348
8349 return rc;
8350}
8351
8352/**
8701f185 8353 * ipr_reset_alert - Alert the adapter of a pending reset
1da177e4
LT		 8354 * @ipr_cmd: ipr command struct
8355 *
8356 * Description: This function alerts the adapter that it will be reset.
8357 * If memory space is not currently enabled, proceed directly
8358 * to running BIST on the adapter. The timer must always be started
8359 * so we guarantee we do not run BIST from ipr_isr.
8360 *
8361 * Return value:
8362 * IPR_RC_JOB_RETURN
8363 **/
8364static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
8365{
8366 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8367 u16 cmd_reg;
8368 int rc;
8369
8370 ENTER;
8371 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
8372
8373 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
8374 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
214777ba 8375 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 8376 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
8377 } else {
fb51ccbf 8378 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 8379 }
8380
8381 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8382 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8383
8384 LEAVE;
8385 return IPR_RC_JOB_RETURN;
8386}
8387
8388/**
8389 * ipr_reset_ucode_download_done - Microcode download completion
8390 * @ipr_cmd: ipr command struct
8391 *
8392 * Description: This function unmaps the microcode download buffer.
8393 *
8394 * Return value:
8395 * IPR_RC_JOB_CONTINUE
8396 **/
8397static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
8398{
8399 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8400 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8401
d73341bf 8402 dma_unmap_sg(&ioa_cfg->pdev->dev, sglist->scatterlist,
1da177e4
LT		 8403 sglist->num_sg, DMA_TO_DEVICE);
8404
8405 ipr_cmd->job_step = ipr_reset_alert;
8406 return IPR_RC_JOB_CONTINUE;
8407}
8408
8409/**
8410 * ipr_reset_ucode_download - Download microcode to the adapter
8411 * @ipr_cmd: ipr command struct
8412 *
8413 * Description: This function checks to see if it there is microcode
8414 * to download to the adapter. If there is, a download is performed.
8415 *
8416 * Return value:
8417 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8418 **/
8419static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
8420{
8421 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8422 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8423
8424 ENTER;
8425 ipr_cmd->job_step = ipr_reset_alert;
8426
8427 if (!sglist)
8428 return IPR_RC_JOB_CONTINUE;
8429
8430 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8431 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
8432 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
8433 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
8434 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
8435 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
8436 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
8437
a32c055f
WB		 8438 if (ioa_cfg->sis64)
8439 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
8440 else
8441 ipr_build_ucode_ioadl(ipr_cmd, sglist);
1da177e4
LT		 8442 ipr_cmd->job_step = ipr_reset_ucode_download_done;
8443
8444 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8445 IPR_WRITE_BUFFER_TIMEOUT);
8446
8447 LEAVE;
8448 return IPR_RC_JOB_RETURN;
8449}
8450
8451/**
8452 * ipr_reset_shutdown_ioa - Shutdown the adapter
8453 * @ipr_cmd: ipr command struct
8454 *
8455 * Description: This function issues an adapter shutdown of the
8456 * specified type to the specified adapter as part of the
8457 * adapter reset job.
8458 *
8459 * Return value:
8460 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8461 **/
8462static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
8463{
8464 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8465 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
8466 unsigned long timeout;
8467 int rc = IPR_RC_JOB_CONTINUE;
8468
8469 ENTER;
56d6aa33 8470 if (shutdown_type != IPR_SHUTDOWN_NONE &&
8471 !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
1da177e4
LT		 8472 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8473 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8474 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
8475 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
8476
ac09c349
BK		 8477 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
8478 timeout = IPR_SHUTDOWN_TIMEOUT;
1da177e4
LT		 8479 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
8480 timeout = IPR_INTERNAL_TIMEOUT;
ac09c349
BK		 8481 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
8482 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
1da177e4 8483 else
ac09c349 8484 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
1da177e4
LT		 8485
8486 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
8487
8488 rc = IPR_RC_JOB_RETURN;
8489 ipr_cmd->job_step = ipr_reset_ucode_download;
8490 } else
8491 ipr_cmd->job_step = ipr_reset_alert;
8492
8493 LEAVE;
8494 return rc;
8495}
8496
8497/**
8498 * ipr_reset_ioa_job - Adapter reset job
8499 * @ipr_cmd: ipr command struct
8500 *
8501 * Description: This function is the job router for the adapter reset job.
8502 *
8503 * Return value:
8504 * none
8505 **/
8506static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
8507{
8508 u32 rc, ioasc;
1da177e4
LT		 8509 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8510
8511 do {
96d21f00 8512 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 8513
8514 if (ioa_cfg->reset_cmd != ipr_cmd) {
8515 /*
8516 * We are doing nested adapter resets and this is
8517 * not the current reset job.
8518 */
05a6538a 8519 list_add_tail(&ipr_cmd->queue,
8520 &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 8521 return;
8522 }
8523
8524 if (IPR_IOASC_SENSE_KEY(ioasc)) {
dfed823e
BK		 8525 rc = ipr_cmd->job_step_failed(ipr_cmd);
8526 if (rc == IPR_RC_JOB_RETURN)
8527 return;
1da177e4
LT		 8528 }
8529
8530 ipr_reinit_ipr_cmnd(ipr_cmd);
dfed823e 8531 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
1da177e4 8532 rc = ipr_cmd->job_step(ipr_cmd);
203fa3fe 8533 } while (rc == IPR_RC_JOB_CONTINUE);
1da177e4
LT		 8534}
8535
8536/**
8537 * _ipr_initiate_ioa_reset - Initiate an adapter reset
8538 * @ioa_cfg: ioa config struct
8539 * @job_step: first job step of reset job
8540 * @shutdown_type: shutdown type
8541 *
8542 * Description: This function will initiate the reset of the given adapter
8543 * starting at the selected job step.
8544 * If the caller needs to wait on the completion of the reset,
8545 * the caller must sleep on the reset_wait_q.
8546 *
8547 * Return value:
8548 * none
8549 **/
8550static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8551 int (*job_step) (struct ipr_cmnd *),
8552 enum ipr_shutdown_type shutdown_type)
8553{
8554 struct ipr_cmnd *ipr_cmd;
56d6aa33 8555 int i;
1da177e4
LT		 8556
8557 ioa_cfg->in_reset_reload = 1;
56d6aa33 8558 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8559 spin_lock(&ioa_cfg->hrrq[i]._lock);
8560 ioa_cfg->hrrq[i].allow_cmds = 0;
8561 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8562 }
8563 wmb();
bfae7820
BK		 8564 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa)
8565 scsi_block_requests(ioa_cfg->host);
1da177e4
LT		 8566
8567 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
8568 ioa_cfg->reset_cmd = ipr_cmd;
8569 ipr_cmd->job_step = job_step;
8570 ipr_cmd->u.shutdown_type = shutdown_type;
8571
8572 ipr_reset_ioa_job(ipr_cmd);
8573}
8574
8575/**
8576 * ipr_initiate_ioa_reset - Initiate an adapter reset
8577 * @ioa_cfg: ioa config struct
8578 * @shutdown_type: shutdown type
8579 *
8580 * Description: This function will initiate the reset of the given adapter.
8581 * If the caller needs to wait on the completion of the reset,
8582 * the caller must sleep on the reset_wait_q.
8583 *
8584 * Return value:
8585 * none
8586 **/
8587static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8588 enum ipr_shutdown_type shutdown_type)
8589{
56d6aa33 8590 int i;
8591
8592 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
1da177e4
LT		 8593 return;
8594
41e9a696
BK		 8595 if (ioa_cfg->in_reset_reload) {
8596 if (ioa_cfg->sdt_state == GET_DUMP)
8597 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8598 else if (ioa_cfg->sdt_state == READ_DUMP)
8599 ioa_cfg->sdt_state = ABORT_DUMP;
8600 }
1da177e4
LT		 8601
8602 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
8603 dev_err(&ioa_cfg->pdev->dev,
8604 "IOA taken offline - error recovery failed\n");
8605
8606 ioa_cfg->reset_retries = 0;
56d6aa33 8607 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8608 spin_lock(&ioa_cfg->hrrq[i]._lock);
8609 ioa_cfg->hrrq[i].ioa_is_dead = 1;
8610 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8611 }
8612 wmb();
1da177e4
LT		 8613
8614 if (ioa_cfg->in_ioa_bringdown) {
8615 ioa_cfg->reset_cmd = NULL;
8616 ioa_cfg->in_reset_reload = 0;
8617 ipr_fail_all_ops(ioa_cfg);
8618 wake_up_all(&ioa_cfg->reset_wait_q);
8619
bfae7820
BK		 8620 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
8621 spin_unlock_irq(ioa_cfg->host->host_lock);
8622 scsi_unblock_requests(ioa_cfg->host);
8623 spin_lock_irq(ioa_cfg->host->host_lock);
8624 }
1da177e4
LT		 8625 return;
8626 } else {
8627 ioa_cfg->in_ioa_bringdown = 1;
8628 shutdown_type = IPR_SHUTDOWN_NONE;
8629 }
8630 }
8631
8632 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
8633 shutdown_type);
8634}
8635
f8a88b19
LV		 8636/**
8637 * ipr_reset_freeze - Hold off all I/O activity
8638 * @ipr_cmd: ipr command struct
8639 *
8640 * Description: If the PCI slot is frozen, hold off all I/O
8641 * activity; then, as soon as the slot is available again,
8642 * initiate an adapter reset.
8643 */
8644static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
8645{
56d6aa33 8646 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8647 int i;
8648
f8a88b19 8649 /* Disallow new interrupts, avoid loop */
56d6aa33 8650 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8651 spin_lock(&ioa_cfg->hrrq[i]._lock);
8652 ioa_cfg->hrrq[i].allow_interrupts = 0;
8653 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8654 }
8655 wmb();
05a6538a 8656 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
f8a88b19
LV		 8657 ipr_cmd->done = ipr_reset_ioa_job;
8658 return IPR_RC_JOB_RETURN;
8659}
8660
6270e593
BK		 8661/**
8662 * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled
8663 * @pdev: PCI device struct
8664 *
8665 * Description: This routine is called to tell us that the MMIO
8666 * access to the IOA has been restored
8667 */
8668static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev)
8669{
8670 unsigned long flags = 0;
8671 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8672
8673 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8674 if (!ioa_cfg->probe_done)
8675 pci_save_state(pdev);
8676 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8677 return PCI_ERS_RESULT_NEED_RESET;
8678}
8679
f8a88b19
LV		 8680/**
8681 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
8682 * @pdev: PCI device struct
8683 *
8684 * Description: This routine is called to tell us that the PCI bus
8685 * is down. Can't do anything here, except put the device driver
8686 * into a holding pattern, waiting for the PCI bus to come back.
8687 */
8688static void ipr_pci_frozen(struct pci_dev *pdev)
8689{
8690 unsigned long flags = 0;
8691 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8692
8693 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 8694 if (ioa_cfg->probe_done)
8695 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
f8a88b19
LV		 8696 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8697}
8698
8699/**
8700 * ipr_pci_slot_reset - Called when PCI slot has been reset.
8701 * @pdev: PCI device struct
8702 *
8703 * Description: This routine is called by the pci error recovery
8704 * code after the PCI slot has been reset, just before we
8705 * should resume normal operations.
8706 */
8707static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
8708{
8709 unsigned long flags = 0;
8710 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8711
8712 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 8713 if (ioa_cfg->probe_done) {
8714 if (ioa_cfg->needs_warm_reset)
8715 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8716 else
8717 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
8718 IPR_SHUTDOWN_NONE);
8719 } else
8720 wake_up_all(&ioa_cfg->eeh_wait_q);
f8a88b19
LV		 8721 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8722 return PCI_ERS_RESULT_RECOVERED;
8723}
8724
8725/**
8726 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
8727 * @pdev: PCI device struct
8728 *
8729 * Description: This routine is called when the PCI bus has
8730 * permanently failed.
8731 */
8732static void ipr_pci_perm_failure(struct pci_dev *pdev)
8733{
8734 unsigned long flags = 0;
8735 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
56d6aa33 8736 int i;
f8a88b19
LV		 8737
8738 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 8739 if (ioa_cfg->probe_done) {
8740 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8741 ioa_cfg->sdt_state = ABORT_DUMP;
8742 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1;
8743 ioa_cfg->in_ioa_bringdown = 1;
8744 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8745 spin_lock(&ioa_cfg->hrrq[i]._lock);
8746 ioa_cfg->hrrq[i].allow_cmds = 0;
8747 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8748 }
8749 wmb();
8750 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8751 } else
8752 wake_up_all(&ioa_cfg->eeh_wait_q);
f8a88b19
LV		 8753 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8754}
8755
8756/**
8757 * ipr_pci_error_detected - Called when a PCI error is detected.
8758 * @pdev: PCI device struct
8759 * @state: PCI channel state
8760 *
8761 * Description: Called when a PCI error is detected.
8762 *
8763 * Return value:
8764 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
8765 */
8766static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
8767 pci_channel_state_t state)
8768{
8769 switch (state) {
8770 case pci_channel_io_frozen:
8771 ipr_pci_frozen(pdev);
6270e593 8772 return PCI_ERS_RESULT_CAN_RECOVER;
f8a88b19
LV		 8773 case pci_channel_io_perm_failure:
8774 ipr_pci_perm_failure(pdev);
8775 return PCI_ERS_RESULT_DISCONNECT;
8776 break;
8777 default:
8778 break;
8779 }
8780 return PCI_ERS_RESULT_NEED_RESET;
8781}
8782
1da177e4
LT		 8783/**
8784 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
8785 * @ioa_cfg: ioa cfg struct
8786 *
8787 * Description: This is the second phase of adapter intialization
8788 * This function takes care of initilizing the adapter to the point
8789 * where it can accept new commands.
8790
8791 * Return value:
b1c11812 8792 * 0 on success / -EIO on failure
1da177e4 8793 **/
6f039790 8794static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 8795{
8796 int rc = 0;
8797 unsigned long host_lock_flags = 0;
8798
8799 ENTER;
8800 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8801 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
6270e593 8802 ioa_cfg->probe_done = 1;
ce155cce
BK		 8803 if (ioa_cfg->needs_hard_reset) {
8804 ioa_cfg->needs_hard_reset = 0;
8805 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8806 } else
8807 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
8808 IPR_SHUTDOWN_NONE);
1da177e4 8809 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
1da177e4
LT		 8810
8811 LEAVE;
8812 return rc;
8813}
8814
8815/**
8816 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
8817 * @ioa_cfg: ioa config struct
8818 *
8819 * Return value:
8820 * none
8821 **/
8822static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8823{
8824 int i;
8825
8826 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8827 if (ioa_cfg->ipr_cmnd_list[i])
d73341bf 8828 dma_pool_free(ioa_cfg->ipr_cmd_pool,
1da177e4
LT		 8829 ioa_cfg->ipr_cmnd_list[i],
8830 ioa_cfg->ipr_cmnd_list_dma[i]);
8831
8832 ioa_cfg->ipr_cmnd_list[i] = NULL;
8833 }
8834
8835 if (ioa_cfg->ipr_cmd_pool)
d73341bf 8836 dma_pool_destroy(ioa_cfg->ipr_cmd_pool);
1da177e4 8837
89aad428
BK		 8838 kfree(ioa_cfg->ipr_cmnd_list);
8839 kfree(ioa_cfg->ipr_cmnd_list_dma);
8840 ioa_cfg->ipr_cmnd_list = NULL;
8841 ioa_cfg->ipr_cmnd_list_dma = NULL;
1da177e4
LT		 8842 ioa_cfg->ipr_cmd_pool = NULL;
8843}
8844
8845/**
8846 * ipr_free_mem - Frees memory allocated for an adapter
8847 * @ioa_cfg: ioa cfg struct
8848 *
8849 * Return value:
8850 * nothing
8851 **/
8852static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
8853{
8854 int i;
8855
8856 kfree(ioa_cfg->res_entries);
d73341bf
AB		 8857 dma_free_coherent(&ioa_cfg->pdev->dev, sizeof(struct ipr_misc_cbs),
8858 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
1da177e4 8859 ipr_free_cmd_blks(ioa_cfg);
05a6538a 8860
8861 for (i = 0; i < ioa_cfg->hrrq_num; i++)
d73341bf
AB		 8862 dma_free_coherent(&ioa_cfg->pdev->dev,
8863 sizeof(u32) * ioa_cfg->hrrq[i].size,
8864 ioa_cfg->hrrq[i].host_rrq,
8865 ioa_cfg->hrrq[i].host_rrq_dma);
05a6538a 8866
d73341bf
AB		 8867 dma_free_coherent(&ioa_cfg->pdev->dev, ioa_cfg->cfg_table_size,
8868 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
1da177e4
LT		 8869
8870 for (i = 0; i < IPR_NUM_HCAMS; i++) {
d73341bf
AB		 8871 dma_free_coherent(&ioa_cfg->pdev->dev,
8872 sizeof(struct ipr_hostrcb),
8873 ioa_cfg->hostrcb[i],
8874 ioa_cfg->hostrcb_dma[i]);
1da177e4
LT		 8875 }
8876
8877 ipr_free_dump(ioa_cfg);
1da177e4
LT		 8878 kfree(ioa_cfg->trace);
8879}
8880
8881/**
8882 * ipr_free_all_resources - Free all allocated resources for an adapter.
8883 * @ipr_cmd: ipr command struct
8884 *
8885 * This function frees all allocated resources for the
8886 * specified adapter.
8887 *
8888 * Return value:
8889 * none
8890 **/
8891static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
8892{
8893 struct pci_dev *pdev = ioa_cfg->pdev;
8894
8895 ENTER;
05a6538a 8896 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
8897 ioa_cfg->intr_flag == IPR_USE_MSIX) {
8898 int i;
8899 for (i = 0; i < ioa_cfg->nvectors; i++)
8900 free_irq(ioa_cfg->vectors_info[i].vec,
8901 &ioa_cfg->hrrq[i]);
8902 } else
8903 free_irq(pdev->irq, &ioa_cfg->hrrq[0]);
8904
56d6aa33 8905 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
05a6538a 8906 pci_disable_msi(pdev);
56d6aa33 8907 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
8908 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
05a6538a 8909 pci_disable_msix(pdev);
56d6aa33 8910 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
8911 }
05a6538a 8912
1da177e4
LT		 8913 iounmap(ioa_cfg->hdw_dma_regs);
8914 pci_release_regions(pdev);
8915 ipr_free_mem(ioa_cfg);
8916 scsi_host_put(ioa_cfg->host);
8917 pci_disable_device(pdev);
8918 LEAVE;
8919}
8920
8921/**
8922 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
8923 * @ioa_cfg: ioa config struct
8924 *
8925 * Return value:
8926 * 0 on success / -ENOMEM on allocation failure
8927 **/
6f039790 8928static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 8929{
8930 struct ipr_cmnd *ipr_cmd;
8931 struct ipr_ioarcb *ioarcb;
8932 dma_addr_t dma_addr;
05a6538a 8933 int i, entries_each_hrrq, hrrq_id = 0;
1da177e4 8934
d73341bf 8935 ioa_cfg->ipr_cmd_pool = dma_pool_create(IPR_NAME, &ioa_cfg->pdev->dev,
203fa3fe 8936 sizeof(struct ipr_cmnd), 512, 0);
1da177e4
LT		 8937
8938 if (!ioa_cfg->ipr_cmd_pool)
8939 return -ENOMEM;
8940
89aad428
BK		 8941 ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL);
8942 ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL);
8943
8944 if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) {
8945 ipr_free_cmd_blks(ioa_cfg);
8946 return -ENOMEM;
8947 }
8948
05a6538a 8949 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8950 if (ioa_cfg->hrrq_num > 1) {
8951 if (i == 0) {
8952 entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS;
8953 ioa_cfg->hrrq[i].min_cmd_id = 0;
8954 ioa_cfg->hrrq[i].max_cmd_id =
8955 (entries_each_hrrq - 1);
8956 } else {
8957 entries_each_hrrq =
8958 IPR_NUM_BASE_CMD_BLKS/
8959 (ioa_cfg->hrrq_num - 1);
8960 ioa_cfg->hrrq[i].min_cmd_id =
8961 IPR_NUM_INTERNAL_CMD_BLKS +
8962 (i - 1) * entries_each_hrrq;
8963 ioa_cfg->hrrq[i].max_cmd_id =
8964 (IPR_NUM_INTERNAL_CMD_BLKS +
8965 i * entries_each_hrrq - 1);
8966 }
8967 } else {
8968 entries_each_hrrq = IPR_NUM_CMD_BLKS;
8969 ioa_cfg->hrrq[i].min_cmd_id = 0;
8970 ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1);
8971 }
8972 ioa_cfg->hrrq[i].size = entries_each_hrrq;
8973 }
8974
8975 BUG_ON(ioa_cfg->hrrq_num == 0);
8976
8977 i = IPR_NUM_CMD_BLKS -
8978 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1;
8979 if (i > 0) {
8980 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i;
8981 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i;
8982 }
8983
1da177e4 8984 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
d73341bf 8985 ipr_cmd = dma_pool_alloc(ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
1da177e4
LT		 8986
8987 if (!ipr_cmd) {
8988 ipr_free_cmd_blks(ioa_cfg);
8989 return -ENOMEM;
8990 }
8991
8992 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
8993 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
8994 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
8995
8996 ioarcb = &ipr_cmd->ioarcb;
a32c055f
WB		 8997 ipr_cmd->dma_addr = dma_addr;
8998 if (ioa_cfg->sis64)
8999 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
9000 else
9001 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
9002
1da177e4 9003 ioarcb->host_response_handle = cpu_to_be32(i << 2);
a32c055f
WB		 9004 if (ioa_cfg->sis64) {
9005 ioarcb->u.sis64_addr_data.data_ioadl_addr =
9006 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
9007 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
96d21f00 9008 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
a32c055f
WB		 9009 } else {
9010 ioarcb->write_ioadl_addr =
9011 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
9012 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
9013 ioarcb->ioasa_host_pci_addr =
96d21f00 9014 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
a32c055f 9015 }
1da177e4
LT		 9016 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
9017 ipr_cmd->cmd_index = i;
9018 ipr_cmd->ioa_cfg = ioa_cfg;
9019 ipr_cmd->sense_buffer_dma = dma_addr +
9020 offsetof(struct ipr_cmnd, sense_buffer);
9021
05a6538a 9022 ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id;
9023 ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id];
9024 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
9025 if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id)
9026 hrrq_id++;
1da177e4
LT		 9027 }
9028
9029 return 0;
9030}
9031
9032/**
9033 * ipr_alloc_mem - Allocate memory for an adapter
9034 * @ioa_cfg: ioa config struct
9035 *
9036 * Return value:
9037 * 0 on success / non-zero for error
9038 **/
6f039790 9039static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9040{
9041 struct pci_dev *pdev = ioa_cfg->pdev;
9042 int i, rc = -ENOMEM;
9043
9044 ENTER;
0bc42e35 9045 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
3e7ebdfa 9046 ioa_cfg->max_devs_supported, GFP_KERNEL);
1da177e4
LT		 9047
9048 if (!ioa_cfg->res_entries)
9049 goto out;
9050
3e7ebdfa 9051 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
1da177e4 9052 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
3e7ebdfa
WB		 9053 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
9054 }
1da177e4 9055
d73341bf
AB		 9056 ioa_cfg->vpd_cbs = dma_alloc_coherent(&pdev->dev,
9057 sizeof(struct ipr_misc_cbs),
9058 &ioa_cfg->vpd_cbs_dma,
9059 GFP_KERNEL);
1da177e4
LT		 9060
9061 if (!ioa_cfg->vpd_cbs)
9062 goto out_free_res_entries;
9063
9064 if (ipr_alloc_cmd_blks(ioa_cfg))
9065 goto out_free_vpd_cbs;
9066
05a6538a 9067 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
d73341bf 9068 ioa_cfg->hrrq[i].host_rrq = dma_alloc_coherent(&pdev->dev,
05a6538a 9069 sizeof(u32) * ioa_cfg->hrrq[i].size,
d73341bf
AB		 9070 &ioa_cfg->hrrq[i].host_rrq_dma,
9071 GFP_KERNEL);
05a6538a 9072
9073 if (!ioa_cfg->hrrq[i].host_rrq) {
9074 while (--i > 0)
d73341bf 9075 dma_free_coherent(&pdev->dev,
05a6538a 9076 sizeof(u32) * ioa_cfg->hrrq[i].size,
9077 ioa_cfg->hrrq[i].host_rrq,
9078 ioa_cfg->hrrq[i].host_rrq_dma);
9079 goto out_ipr_free_cmd_blocks;
9080 }
9081 ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg;
9082 }
1da177e4 9083
d73341bf
AB		 9084 ioa_cfg->u.cfg_table = dma_alloc_coherent(&pdev->dev,
9085 ioa_cfg->cfg_table_size,
9086 &ioa_cfg->cfg_table_dma,
9087 GFP_KERNEL);
1da177e4 9088
3e7ebdfa 9089 if (!ioa_cfg->u.cfg_table)
1da177e4
LT		 9090 goto out_free_host_rrq;
9091
9092 for (i = 0; i < IPR_NUM_HCAMS; i++) {
d73341bf
AB		 9093 ioa_cfg->hostrcb[i] = dma_alloc_coherent(&pdev->dev,
9094 sizeof(struct ipr_hostrcb),
9095 &ioa_cfg->hostrcb_dma[i],
9096 GFP_KERNEL);
1da177e4
LT		 9097
9098 if (!ioa_cfg->hostrcb[i])
9099 goto out_free_hostrcb_dma;
9100
9101 ioa_cfg->hostrcb[i]->hostrcb_dma =
9102 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
49dc6a18 9103 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
1da177e4
LT		 9104 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
9105 }
9106
0bc42e35 9107 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
1da177e4
LT		 9108 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
9109
9110 if (!ioa_cfg->trace)
9111 goto out_free_hostrcb_dma;
9112
1da177e4
LT		 9113 rc = 0;
9114out:
9115 LEAVE;
9116 return rc;
9117
9118out_free_hostrcb_dma:
9119 while (i-- > 0) {
d73341bf
AB		 9120 dma_free_coherent(&pdev->dev, sizeof(struct ipr_hostrcb),
9121 ioa_cfg->hostrcb[i],
9122 ioa_cfg->hostrcb_dma[i]);
1da177e4 9123 }
d73341bf
AB		 9124 dma_free_coherent(&pdev->dev, ioa_cfg->cfg_table_size,
9125 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
1da177e4 9126out_free_host_rrq:
05a6538a 9127 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
d73341bf
AB		 9128 dma_free_coherent(&pdev->dev,
9129 sizeof(u32) * ioa_cfg->hrrq[i].size,
9130 ioa_cfg->hrrq[i].host_rrq,
9131 ioa_cfg->hrrq[i].host_rrq_dma);
05a6538a 9132 }
1da177e4
LT		 9133out_ipr_free_cmd_blocks:
9134 ipr_free_cmd_blks(ioa_cfg);
9135out_free_vpd_cbs:
d73341bf
AB		 9136 dma_free_coherent(&pdev->dev, sizeof(struct ipr_misc_cbs),
9137 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
1da177e4
LT		 9138out_free_res_entries:
9139 kfree(ioa_cfg->res_entries);
9140 goto out;
9141}
9142
9143/**
9144 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
9145 * @ioa_cfg: ioa config struct
9146 *
9147 * Return value:
9148 * none
9149 **/
6f039790 9150static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9151{
9152 int i;
9153
9154 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
9155 ioa_cfg->bus_attr[i].bus = i;
9156 ioa_cfg->bus_attr[i].qas_enabled = 0;
9157 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
9158 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
9159 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
9160 else
9161 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
9162 }
9163}
9164
6270e593
BK		 9165/**
9166 * ipr_init_regs - Initialize IOA registers
9167 * @ioa_cfg: ioa config struct
9168 *
9169 * Return value:
9170 * none
9171 **/
9172static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg)
9173{
9174 const struct ipr_interrupt_offsets *p;
9175 struct ipr_interrupts *t;
9176 void __iomem *base;
9177
9178 p = &ioa_cfg->chip_cfg->regs;
9179 t = &ioa_cfg->regs;
9180 base = ioa_cfg->hdw_dma_regs;
9181
9182 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
9183 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
9184 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
9185 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
9186 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
9187 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
9188 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
9189 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
9190 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
9191 t->ioarrin_reg = base + p->ioarrin_reg;
9192 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
9193 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
9194 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
9195 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
9196 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
9197 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
9198
9199 if (ioa_cfg->sis64) {
9200 t->init_feedback_reg = base + p->init_feedback_reg;
9201 t->dump_addr_reg = base + p->dump_addr_reg;
9202 t->dump_data_reg = base + p->dump_data_reg;
9203 t->endian_swap_reg = base + p->endian_swap_reg;
9204 }
9205}
9206
1da177e4
LT		 9207/**
9208 * ipr_init_ioa_cfg - Initialize IOA config struct
9209 * @ioa_cfg: ioa config struct
9210 * @host: scsi host struct
9211 * @pdev: PCI dev struct
9212 *
9213 * Return value:
9214 * none
9215 **/
6f039790
GKH		 9216static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
9217 struct Scsi_Host *host, struct pci_dev *pdev)
1da177e4 9218{
6270e593 9219 int i;
1da177e4
LT		 9220
9221 ioa_cfg->host = host;
9222 ioa_cfg->pdev = pdev;
9223 ioa_cfg->log_level = ipr_log_level;
3d1d0da6 9224 ioa_cfg->doorbell = IPR_DOORBELL;
1da177e4
LT		 9225 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
9226 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
1da177e4
LT		 9227 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
9228 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
9229 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
9230 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
9231
1da177e4
LT		 9232 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
9233 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
9234 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
9235 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
c4028958 9236 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
1da177e4 9237 init_waitqueue_head(&ioa_cfg->reset_wait_q);
95fecd90 9238 init_waitqueue_head(&ioa_cfg->msi_wait_q);
6270e593 9239 init_waitqueue_head(&ioa_cfg->eeh_wait_q);
1da177e4
LT		 9240 ioa_cfg->sdt_state = INACTIVE;
9241
9242 ipr_initialize_bus_attr(ioa_cfg);
3e7ebdfa 9243 ioa_cfg->max_devs_supported = ipr_max_devs;
1da177e4 9244
3e7ebdfa
WB		 9245 if (ioa_cfg->sis64) {
9246 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
9247 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
9248 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
9249 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
6270e593
BK		 9250 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
9251 + ((sizeof(struct ipr_config_table_entry64)
9252 * ioa_cfg->max_devs_supported)));
3e7ebdfa
WB		 9253 } else {
9254 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
9255 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
9256 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
9257 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
6270e593
BK		 9258 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
9259 + ((sizeof(struct ipr_config_table_entry)
9260 * ioa_cfg->max_devs_supported)));
3e7ebdfa 9261 }
6270e593 9262
f688f96d 9263 host->max_channel = IPR_VSET_BUS;
1da177e4
LT		 9264 host->unique_id = host->host_no;
9265 host->max_cmd_len = IPR_MAX_CDB_LEN;
89aad428 9266 host->can_queue = ioa_cfg->max_cmds;
1da177e4
LT		 9267 pci_set_drvdata(pdev, ioa_cfg);
9268
6270e593
BK		 9269 for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) {
9270 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q);
9271 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q);
9272 spin_lock_init(&ioa_cfg->hrrq[i]._lock);
9273 if (i == 0)
9274 ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock;
9275 else
9276 ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock;
dcbad00e 9277 }
1da177e4
LT		 9278}
9279
9280/**
1be7bd82 9281 * ipr_get_chip_info - Find adapter chip information
1da177e4
LT		 9282 * @dev_id: PCI device id struct
9283 *
9284 * Return value:
1be7bd82 9285 * ptr to chip information on success / NULL on failure
1da177e4 9286 **/
6f039790 9287static const struct ipr_chip_t *
1be7bd82 9288ipr_get_chip_info(const struct pci_device_id *dev_id)
1da177e4
LT		 9289{
9290 int i;
9291
1da177e4
LT		 9292 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
9293 if (ipr_chip[i].vendor == dev_id->vendor &&
9294 ipr_chip[i].device == dev_id->device)
1be7bd82 9295 return &ipr_chip[i];
1da177e4
LT		 9296 return NULL;
9297}
9298
6270e593
BK		 9299/**
9300 * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete
9301 * during probe time
9302 * @ioa_cfg: ioa config struct
9303 *
9304 * Return value:
9305 * None
9306 **/
9307static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg)
9308{
9309 struct pci_dev *pdev = ioa_cfg->pdev;
9310
9311 if (pci_channel_offline(pdev)) {
9312 wait_event_timeout(ioa_cfg->eeh_wait_q,
9313 !pci_channel_offline(pdev),
9314 IPR_PCI_ERROR_RECOVERY_TIMEOUT);
9315 pci_restore_state(pdev);
9316 }
9317}
9318
05a6538a 9319static int ipr_enable_msix(struct ipr_ioa_cfg *ioa_cfg)
9320{
9321 struct msix_entry entries[IPR_MAX_MSIX_VECTORS];
60e76b77 9322 int i, vectors;
05a6538a 9323
9324 for (i = 0; i < ARRAY_SIZE(entries); ++i)
9325 entries[i].entry = i;
9326
60e76b77
AG		 9327 vectors = pci_enable_msix_range(ioa_cfg->pdev,
9328 entries, 1, ipr_number_of_msix);
9329 if (vectors < 0) {
6270e593 9330 ipr_wait_for_pci_err_recovery(ioa_cfg);
60e76b77 9331 return vectors;
05a6538a 9332 }
9333
60e76b77
AG		 9334 for (i = 0; i < vectors; i++)
9335 ioa_cfg->vectors_info[i].vec = entries[i].vector;
9336 ioa_cfg->nvectors = vectors;
05a6538a 9337
60e76b77 9338 return 0;
05a6538a 9339}
9340
9341static int ipr_enable_msi(struct ipr_ioa_cfg *ioa_cfg)
9342{
60e76b77 9343 int i, vectors;
05a6538a 9344
60e76b77
AG		 9345 vectors = pci_enable_msi_range(ioa_cfg->pdev, 1, ipr_number_of_msix);
9346 if (vectors < 0) {
6270e593 9347 ipr_wait_for_pci_err_recovery(ioa_cfg);
60e76b77 9348 return vectors;
05a6538a 9349 }
9350
60e76b77
AG		 9351 for (i = 0; i < vectors; i++)
9352 ioa_cfg->vectors_info[i].vec = ioa_cfg->pdev->irq + i;
9353 ioa_cfg->nvectors = vectors;
05a6538a 9354
60e76b77 9355 return 0;
05a6538a 9356}
9357
9358static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg)
9359{
9360 int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1;
9361
9362 for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) {
9363 snprintf(ioa_cfg->vectors_info[vec_idx].desc, n,
9364 "host%d-%d", ioa_cfg->host->host_no, vec_idx);
9365 ioa_cfg->vectors_info[vec_idx].
9366 desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0;
9367 }
9368}
9369
9370static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg)
9371{
9372 int i, rc;
9373
9374 for (i = 1; i < ioa_cfg->nvectors; i++) {
9375 rc = request_irq(ioa_cfg->vectors_info[i].vec,
9376 ipr_isr_mhrrq,
9377 0,
9378 ioa_cfg->vectors_info[i].desc,
9379 &ioa_cfg->hrrq[i]);
9380 if (rc) {
9381 while (--i >= 0)
9382 free_irq(ioa_cfg->vectors_info[i].vec,
9383 &ioa_cfg->hrrq[i]);
9384 return rc;
9385 }
9386 }
9387 return 0;
9388}
9389
95fecd90
WB		 9390/**
9391 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
9392 * @pdev: PCI device struct
9393 *
9394 * Description: Simply set the msi_received flag to 1 indicating that
9395 * Message Signaled Interrupts are supported.
9396 *
9397 * Return value:
9398 * 0 on success / non-zero on failure
9399 **/
6f039790 9400static irqreturn_t ipr_test_intr(int irq, void *devp)
95fecd90
WB		 9401{
9402 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
9403 unsigned long lock_flags = 0;
9404 irqreturn_t rc = IRQ_HANDLED;
9405
05a6538a 9406 dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n", irq);
95fecd90
WB		 9407 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9408
9409 ioa_cfg->msi_received = 1;
9410 wake_up(&ioa_cfg->msi_wait_q);
9411
9412 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9413 return rc;
9414}
9415
9416/**
9417 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
9418 * @pdev: PCI device struct
9419 *
60e76b77 9420 * Description: The return value from pci_enable_msi_range() can not always be
95fecd90
WB		 9421 * trusted. This routine sets up and initiates a test interrupt to determine
9422 * if the interrupt is received via the ipr_test_intr() service routine.
9423 * If the tests fails, the driver will fall back to LSI.
9424 *
9425 * Return value:
9426 * 0 on success / non-zero on failure
9427 **/
6f039790 9428static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev)
95fecd90
WB		 9429{
9430 int rc;
9431 volatile u32 int_reg;
9432 unsigned long lock_flags = 0;
9433
9434 ENTER;
9435
9436 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9437 init_waitqueue_head(&ioa_cfg->msi_wait_q);
9438 ioa_cfg->msi_received = 0;
9439 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
214777ba 9440 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
95fecd90
WB		 9441 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
9442 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9443
f19799f4 9444 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9445 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
9446 else
9447 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
95fecd90
WB		 9448 if (rc) {
9449 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
9450 return rc;
9451 } else if (ipr_debug)
9452 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
9453
214777ba 9454 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
95fecd90
WB		 9455 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
9456 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
56d6aa33 9457 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
95fecd90
WB		 9458 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
9459
95fecd90
WB		 9460 if (!ioa_cfg->msi_received) {
9461 /* MSI test failed */
9462 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
9463 rc = -EOPNOTSUPP;
9464 } else if (ipr_debug)
9465 dev_info(&pdev->dev, "MSI test succeeded.\n");
9466
9467 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9468
f19799f4 9469 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9470 free_irq(ioa_cfg->vectors_info[0].vec, ioa_cfg);
9471 else
9472 free_irq(pdev->irq, ioa_cfg);
95fecd90
WB		 9473
9474 LEAVE;
9475
9476 return rc;
9477}
9478
05a6538a 9479 /* ipr_probe_ioa - Allocates memory and does first stage of initialization
1da177e4
LT		 9480 * @pdev: PCI device struct
9481 * @dev_id: PCI device id struct
9482 *
9483 * Return value:
9484 * 0 on success / non-zero on failure
9485 **/
6f039790
GKH		 9486static int ipr_probe_ioa(struct pci_dev *pdev,
9487 const struct pci_device_id *dev_id)
1da177e4
LT		 9488{
9489 struct ipr_ioa_cfg *ioa_cfg;
9490 struct Scsi_Host *host;
9491 unsigned long ipr_regs_pci;
9492 void __iomem *ipr_regs;
a2a65a3e 9493 int rc = PCIBIOS_SUCCESSFUL;
473b1e8e 9494 volatile u32 mask, uproc, interrupts;
feccada9 9495 unsigned long lock_flags, driver_lock_flags;
1da177e4
LT		 9496
9497 ENTER;
9498
1da177e4 9499 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
1da177e4
LT		 9500 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
9501
9502 if (!host) {
9503 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
9504 rc = -ENOMEM;
6270e593 9505 goto out;
1da177e4
LT		 9506 }
9507
9508 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
9509 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
8d8e7d13 9510 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops);
1da177e4 9511
1be7bd82 9512 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
1da177e4 9513
1be7bd82 9514 if (!ioa_cfg->ipr_chip) {
1da177e4
LT		 9515 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
9516 dev_id->vendor, dev_id->device);
9517 goto out_scsi_host_put;
9518 }
9519
a32c055f
WB		 9520 /* set SIS 32 or SIS 64 */
9521 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
1be7bd82 9522 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
7dd21308 9523 ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr;
89aad428 9524 ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds;
1be7bd82 9525
5469cb5b
BK		 9526 if (ipr_transop_timeout)
9527 ioa_cfg->transop_timeout = ipr_transop_timeout;
9528 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
9529 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
9530 else
9531 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
9532
44c10138 9533 ioa_cfg->revid = pdev->revision;
463fc696 9534
6270e593
BK		 9535 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
9536
1da177e4
LT		 9537 ipr_regs_pci = pci_resource_start(pdev, 0);
9538
9539 rc = pci_request_regions(pdev, IPR_NAME);
9540 if (rc < 0) {
9541 dev_err(&pdev->dev,
9542 "Couldn't register memory range of registers\n");
9543 goto out_scsi_host_put;
9544 }
9545
6270e593
BK		 9546 rc = pci_enable_device(pdev);
9547
9548 if (rc || pci_channel_offline(pdev)) {
9549 if (pci_channel_offline(pdev)) {
9550 ipr_wait_for_pci_err_recovery(ioa_cfg);
9551 rc = pci_enable_device(pdev);
9552 }
9553
9554 if (rc) {
9555 dev_err(&pdev->dev, "Cannot enable adapter\n");
9556 ipr_wait_for_pci_err_recovery(ioa_cfg);
9557 goto out_release_regions;
9558 }
9559 }
9560
25729a7f 9561 ipr_regs = pci_ioremap_bar(pdev, 0);
1da177e4
LT		 9562
9563 if (!ipr_regs) {
9564 dev_err(&pdev->dev,
9565 "Couldn't map memory range of registers\n");
9566 rc = -ENOMEM;
6270e593 9567 goto out_disable;
1da177e4
LT		 9568 }
9569
9570 ioa_cfg->hdw_dma_regs = ipr_regs;
9571 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
9572 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
9573
6270e593 9574 ipr_init_regs(ioa_cfg);
1da177e4 9575
a32c055f 9576 if (ioa_cfg->sis64) {
869404cb 9577 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
a32c055f 9578 if (rc < 0) {
869404cb
AB		 9579 dev_dbg(&pdev->dev, "Failed to set 64 bit DMA mask\n");
9580 rc = dma_set_mask_and_coherent(&pdev->dev,
9581 DMA_BIT_MASK(32));
a32c055f 9582 }
a32c055f 9583 } else
869404cb 9584 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
a32c055f 9585
1da177e4 9586 if (rc < 0) {
869404cb 9587 dev_err(&pdev->dev, "Failed to set DMA mask\n");
1da177e4
LT		 9588 goto cleanup_nomem;
9589 }
9590
9591 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
9592 ioa_cfg->chip_cfg->cache_line_size);
9593
9594 if (rc != PCIBIOS_SUCCESSFUL) {
9595 dev_err(&pdev->dev, "Write of cache line size failed\n");
6270e593 9596 ipr_wait_for_pci_err_recovery(ioa_cfg);
1da177e4
LT		 9597 rc = -EIO;
9598 goto cleanup_nomem;
9599 }
9600
6270e593
BK		 9601 /* Issue MMIO read to ensure card is not in EEH */
9602 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
9603 ipr_wait_for_pci_err_recovery(ioa_cfg);
9604
05a6538a 9605 if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) {
9606 dev_err(&pdev->dev, "The max number of MSIX is %d\n",
9607 IPR_MAX_MSIX_VECTORS);
9608 ipr_number_of_msix = IPR_MAX_MSIX_VECTORS;
9609 }
9610
9611 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
56d6aa33 9612 ipr_enable_msix(ioa_cfg) == 0)
05a6538a 9613 ioa_cfg->intr_flag = IPR_USE_MSIX;
9614 else if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
56d6aa33 9615 ipr_enable_msi(ioa_cfg) == 0)
05a6538a 9616 ioa_cfg->intr_flag = IPR_USE_MSI;
9617 else {
9618 ioa_cfg->intr_flag = IPR_USE_LSI;
9619 ioa_cfg->nvectors = 1;
9620 dev_info(&pdev->dev, "Cannot enable MSI.\n");
9621 }
9622
6270e593
BK		 9623 pci_set_master(pdev);
9624
9625 if (pci_channel_offline(pdev)) {
9626 ipr_wait_for_pci_err_recovery(ioa_cfg);
9627 pci_set_master(pdev);
9628 if (pci_channel_offline(pdev)) {
9629 rc = -EIO;
9630 goto out_msi_disable;
9631 }
9632 }
9633
05a6538a 9634 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
9635 ioa_cfg->intr_flag == IPR_USE_MSIX) {
95fecd90 9636 rc = ipr_test_msi(ioa_cfg, pdev);
05a6538a 9637 if (rc == -EOPNOTSUPP) {
6270e593 9638 ipr_wait_for_pci_err_recovery(ioa_cfg);
05a6538a 9639 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
9640 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
9641 pci_disable_msi(pdev);
9642 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
9643 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
9644 pci_disable_msix(pdev);
9645 }
9646
9647 ioa_cfg->intr_flag = IPR_USE_LSI;
9648 ioa_cfg->nvectors = 1;
9649 }
95fecd90
WB		 9650 else if (rc)
9651 goto out_msi_disable;
05a6538a 9652 else {
9653 if (ioa_cfg->intr_flag == IPR_USE_MSI)
9654 dev_info(&pdev->dev,
9655 "Request for %d MSIs succeeded with starting IRQ: %d\n",
9656 ioa_cfg->nvectors, pdev->irq);
9657 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9658 dev_info(&pdev->dev,
9659 "Request for %d MSIXs succeeded.",
9660 ioa_cfg->nvectors);
9661 }
9662 }
9663
9664 ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors,
9665 (unsigned int)num_online_cpus(),
9666 (unsigned int)IPR_MAX_HRRQ_NUM);
95fecd90 9667
1da177e4 9668 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
f170c684 9669 goto out_msi_disable;
1da177e4
LT		 9670
9671 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
f170c684 9672 goto out_msi_disable;
1da177e4
LT		 9673
9674 rc = ipr_alloc_mem(ioa_cfg);
9675 if (rc < 0) {
9676 dev_err(&pdev->dev,
9677 "Couldn't allocate enough memory for device driver!\n");
f170c684 9678 goto out_msi_disable;
1da177e4
LT		 9679 }
9680
6270e593
BK		 9681 /* Save away PCI config space for use following IOA reset */
9682 rc = pci_save_state(pdev);
9683
9684 if (rc != PCIBIOS_SUCCESSFUL) {
9685 dev_err(&pdev->dev, "Failed to save PCI config space\n");
9686 rc = -EIO;
9687 goto cleanup_nolog;
9688 }
9689
ce155cce
BK		 9690 /*
9691 * If HRRQ updated interrupt is not masked, or reset alert is set,
9692 * the card is in an unknown state and needs a hard reset
9693 */
214777ba
WB		 9694 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
9695 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
9696 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
ce155cce
BK		 9697 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
9698 ioa_cfg->needs_hard_reset = 1;
5d7c20b7 9699 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
473b1e8e
BK		 9700 ioa_cfg->needs_hard_reset = 1;
9701 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
9702 ioa_cfg->ioa_unit_checked = 1;
ce155cce 9703
56d6aa33 9704 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1da177e4 9705 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
56d6aa33 9706 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4 9707
05a6538a 9708 if (ioa_cfg->intr_flag == IPR_USE_MSI
9709 || ioa_cfg->intr_flag == IPR_USE_MSIX) {
9710 name_msi_vectors(ioa_cfg);
9711 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_isr,
9712 0,
9713 ioa_cfg->vectors_info[0].desc,
9714 &ioa_cfg->hrrq[0]);
9715 if (!rc)
9716 rc = ipr_request_other_msi_irqs(ioa_cfg);
9717 } else {
9718 rc = request_irq(pdev->irq, ipr_isr,
9719 IRQF_SHARED,
9720 IPR_NAME, &ioa_cfg->hrrq[0]);
9721 }
1da177e4
LT		 9722 if (rc) {
9723 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
9724 pdev->irq, rc);
9725 goto cleanup_nolog;
9726 }
9727
463fc696
BK		 9728 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
9729 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
9730 ioa_cfg->needs_warm_reset = 1;
9731 ioa_cfg->reset = ipr_reset_slot_reset;
9732 } else
9733 ioa_cfg->reset = ipr_reset_start_bist;
9734
feccada9 9735 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
1da177e4 9736 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
feccada9 9737 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
1da177e4
LT		 9738
9739 LEAVE;
9740out:
9741 return rc;
9742
9743cleanup_nolog:
9744 ipr_free_mem(ioa_cfg);
95fecd90 9745out_msi_disable:
6270e593 9746 ipr_wait_for_pci_err_recovery(ioa_cfg);
05a6538a 9747 if (ioa_cfg->intr_flag == IPR_USE_MSI)
9748 pci_disable_msi(pdev);
9749 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9750 pci_disable_msix(pdev);
f170c684
JL		 9751cleanup_nomem:
9752 iounmap(ipr_regs);
6270e593
BK		 9753out_disable:
9754 pci_disable_device(pdev);
1da177e4
LT		 9755out_release_regions:
9756 pci_release_regions(pdev);
9757out_scsi_host_put:
9758 scsi_host_put(host);
1da177e4
LT		 9759 goto out;
9760}
9761
1da177e4
LT		 9762/**
9763 * ipr_initiate_ioa_bringdown - Bring down an adapter
9764 * @ioa_cfg: ioa config struct
9765 * @shutdown_type: shutdown type
9766 *
9767 * Description: This function will initiate bringing down the adapter.
9768 * This consists of issuing an IOA shutdown to the adapter
9769 * to flush the cache, and running BIST.
9770 * If the caller needs to wait on the completion of the reset,
9771 * the caller must sleep on the reset_wait_q.
9772 *
9773 * Return value:
9774 * none
9775 **/
9776static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
9777 enum ipr_shutdown_type shutdown_type)
9778{
9779 ENTER;
9780 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
9781 ioa_cfg->sdt_state = ABORT_DUMP;
9782 ioa_cfg->reset_retries = 0;
9783 ioa_cfg->in_ioa_bringdown = 1;
9784 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
9785 LEAVE;
9786}
9787
9788/**
9789 * __ipr_remove - Remove a single adapter
9790 * @pdev: pci device struct
9791 *
9792 * Adapter hot plug remove entry point.
9793 *
9794 * Return value:
9795 * none
9796 **/
9797static void __ipr_remove(struct pci_dev *pdev)
9798{
9799 unsigned long host_lock_flags = 0;
9800 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
bfae7820 9801 int i;
feccada9 9802 unsigned long driver_lock_flags;
1da177e4
LT		 9803 ENTER;
9804
9805 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
203fa3fe 9806 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 9807 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9808 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9809 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9810 }
9811
bfae7820
BK		 9812 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9813 spin_lock(&ioa_cfg->hrrq[i]._lock);
9814 ioa_cfg->hrrq[i].removing_ioa = 1;
9815 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9816 }
9817 wmb();
1da177e4
LT		 9818 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
9819
9820 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9821 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
43829731 9822 flush_work(&ioa_cfg->work_q);
9077a944 9823 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
1da177e4
LT		 9824 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9825
feccada9 9826 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
1da177e4 9827 list_del(&ioa_cfg->queue);
feccada9 9828 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
1da177e4
LT		 9829
9830 if (ioa_cfg->sdt_state == ABORT_DUMP)
9831 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
9832 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9833
9834 ipr_free_all_resources(ioa_cfg);
9835
9836 LEAVE;
9837}
9838
9839/**
9840 * ipr_remove - IOA hot plug remove entry point
9841 * @pdev: pci device struct
9842 *
9843 * Adapter hot plug remove entry point.
9844 *
9845 * Return value:
9846 * none
9847 **/
6f039790 9848static void ipr_remove(struct pci_dev *pdev)
1da177e4
LT		 9849{
9850 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9851
9852 ENTER;
9853
ee959b00 9854 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4 9855 &ipr_trace_attr);
ee959b00 9856 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9857 &ipr_dump_attr);
9858 scsi_remove_host(ioa_cfg->host);
9859
9860 __ipr_remove(pdev);
9861
9862 LEAVE;
9863}
9864
9865/**
9866 * ipr_probe - Adapter hot plug add entry point
9867 *
9868 * Return value:
9869 * 0 on success / non-zero on failure
9870 **/
6f039790 9871static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
1da177e4
LT		 9872{
9873 struct ipr_ioa_cfg *ioa_cfg;
b53d124a 9874 int rc, i;
1da177e4
LT		 9875
9876 rc = ipr_probe_ioa(pdev, dev_id);
9877
9878 if (rc)
9879 return rc;
9880
9881 ioa_cfg = pci_get_drvdata(pdev);
9882 rc = ipr_probe_ioa_part2(ioa_cfg);
9883
9884 if (rc) {
9885 __ipr_remove(pdev);
9886 return rc;
9887 }
9888
9889 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
9890
9891 if (rc) {
9892 __ipr_remove(pdev);
9893 return rc;
9894 }
9895
ee959b00 9896 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9897 &ipr_trace_attr);
9898
9899 if (rc) {
9900 scsi_remove_host(ioa_cfg->host);
9901 __ipr_remove(pdev);
9902 return rc;
9903 }
9904
ee959b00 9905 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9906 &ipr_dump_attr);
9907
9908 if (rc) {
ee959b00 9909 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9910 &ipr_trace_attr);
9911 scsi_remove_host(ioa_cfg->host);
9912 __ipr_remove(pdev);
9913 return rc;
9914 }
9915
9916 scsi_scan_host(ioa_cfg->host);
b53d124a 9917 ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight;
9918
89f8b33c 9919 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 9920 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
9921 blk_iopoll_init(&ioa_cfg->hrrq[i].iopoll,
9922 ioa_cfg->iopoll_weight, ipr_iopoll);
9923 blk_iopoll_enable(&ioa_cfg->hrrq[i].iopoll);
9924 }
9925 }
9926
1da177e4
LT		 9927 schedule_work(&ioa_cfg->work_q);
9928 return 0;
9929}
9930
9931/**
9932 * ipr_shutdown - Shutdown handler.
d18c3db5 9933 * @pdev: pci device struct
1da177e4
LT		 9934 *
9935 * This function is invoked upon system shutdown/reboot. It will issue
9936 * an adapter shutdown to the adapter to flush the write cache.
9937 *
9938 * Return value:
9939 * none
9940 **/
d18c3db5 9941static void ipr_shutdown(struct pci_dev *pdev)
1da177e4 9942{
d18c3db5 9943 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
1da177e4 9944 unsigned long lock_flags = 0;
b53d124a 9945 int i;
1da177e4
LT		 9946
9947 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
89f8b33c 9948 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 9949 ioa_cfg->iopoll_weight = 0;
9950 for (i = 1; i < ioa_cfg->hrrq_num; i++)
9951 blk_iopoll_disable(&ioa_cfg->hrrq[i].iopoll);
9952 }
9953
203fa3fe 9954 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 9955 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9956 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9957 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9958 }
9959
1da177e4
LT		 9960 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
9961 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9962 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9963}
9964
6f039790 9965static struct pci_device_id ipr_pci_table[] = {
1da177e4 9966 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 9967 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
1da177e4 9968 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 9969 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
1da177e4 9970 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 9971 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
1da177e4 9972 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 9973 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
1da177e4 9974 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 9975 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
1da177e4 9976 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 9977 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
1da177e4 9978 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 9979 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
86f51436 9980 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
5469cb5b
BK		 9981 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
9982 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 9983 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
6d84c944 9984 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 9985 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
22d2e402
BK		 9986 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
9987 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 9988 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
5469cb5b
BK		 9989 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9990 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 9991 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
6d84c944 9992 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 9993 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
22d2e402
BK		 9994 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
9995 IPR_USE_LONG_TRANSOP_TIMEOUT},
60e7486b 9996 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
5469cb5b
BK		 9997 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9998 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c 9999 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
22d2e402
BK		 10000 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
10001 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c
BK		 10002 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10003 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
b0f56d3d
WB		 10004 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10005 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
60e7486b 10006 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
5469cb5b 10007 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
463fc696 10008 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
1da177e4 10009 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
6d84c944 10010 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
1da177e4 10011 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
6d84c944 10012 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
86f51436 10013 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 10014 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
10015 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 10016 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 10017 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
10018 IPR_USE_LONG_TRANSOP_TIMEOUT },
d7b4627f
WB		 10019 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10020 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
10021 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10022 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
10023 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10024 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
b8d5d568 10025 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10026 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 },
5a918353
WB		 10027 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10028 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
32622bde
WB		 10029 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10030 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
cd9b3d04 10031 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10032 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
cd9b3d04 10033 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10034 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
cd9b3d04 10035 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10036 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
cd9b3d04
WB		 10037 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10038 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 },
10039 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10040 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
b8d5d568 10041 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10042 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 },
10043 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10044 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 },
10045 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10046 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 },
10047 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10048 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 },
43c5fdaf 10049 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10050 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 },
10051 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
f94d9964
WX		 10052 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 },
10053 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
43c5fdaf 10054 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 },
10055 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10056 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 },
10057 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10058 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 },
10059 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10060 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 },
10061 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10062 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 },
10063 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10064 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 },
5eeac3e9
WX		 10065 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10066 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCA, 0, 0, 0 },
10067 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10068 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CD2, 0, 0, 0 },
10069 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10070 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCD, 0, 0, 0 },
1da177e4
LT		 10071 { }
10072};
10073MODULE_DEVICE_TABLE(pci, ipr_pci_table);
10074
a55b2d21 10075static const struct pci_error_handlers ipr_err_handler = {
f8a88b19 10076 .error_detected = ipr_pci_error_detected,
6270e593 10077 .mmio_enabled = ipr_pci_mmio_enabled,
f8a88b19
LV		 10078 .slot_reset = ipr_pci_slot_reset,
10079};
10080
1da177e4
LT		 10081static struct pci_driver ipr_driver = {
10082 .name = IPR_NAME,
10083 .id_table = ipr_pci_table,
10084 .probe = ipr_probe,
6f039790 10085 .remove = ipr_remove,
d18c3db5 10086 .shutdown = ipr_shutdown,
f8a88b19 10087 .err_handler = &ipr_err_handler,
1da177e4
LT		 10088};
10089
f72919ec
WB		 10090/**
10091 * ipr_halt_done - Shutdown prepare completion
10092 *
10093 * Return value:
10094 * none
10095 **/
10096static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
10097{
05a6538a 10098 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
f72919ec
WB		 10099}
10100
10101/**
10102 * ipr_halt - Issue shutdown prepare to all adapters
10103 *
10104 * Return value:
10105 * NOTIFY_OK on success / NOTIFY_DONE on failure
10106 **/
10107static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
10108{
10109 struct ipr_cmnd *ipr_cmd;
10110 struct ipr_ioa_cfg *ioa_cfg;
feccada9 10111 unsigned long flags = 0, driver_lock_flags;
f72919ec
WB		 10112
10113 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
10114 return NOTIFY_DONE;
10115
feccada9 10116 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
f72919ec
WB		 10117
10118 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
10119 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
56d6aa33 10120 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
f72919ec
WB		 10121 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10122 continue;
10123 }
10124
10125 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
10126 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
10127 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
10128 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
10129 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
10130
10131 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
10132 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10133 }
feccada9 10134 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
f72919ec
WB		 10135
10136 return NOTIFY_OK;
10137}
10138
10139static struct notifier_block ipr_notifier = {
10140 ipr_halt, NULL, 0
10141};
10142
1da177e4
LT		 10143/**
10144 * ipr_init - Module entry point
10145 *
10146 * Return value:
10147 * 0 on success / negative value on failure
10148 **/
10149static int __init ipr_init(void)
10150{
10151 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
10152 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
10153
f72919ec 10154 register_reboot_notifier(&ipr_notifier);
dcbccbde 10155 return pci_register_driver(&ipr_driver);
1da177e4
LT		 10156}
10157
10158/**
10159 * ipr_exit - Module unload
10160 *
10161 * Module unload entry point.
10162 *
10163 * Return value:
10164 * none
10165 **/
10166static void __exit ipr_exit(void)
10167{
f72919ec 10168 unregister_reboot_notifier(&ipr_notifier);
1da177e4
LT		 10169 pci_unregister_driver(&ipr_driver);
10170}
10171
10172module_init(ipr_init);
10173module_exit(ipr_exit);
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