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SCSI: Free resources when we return BLKPREP_INVALID
[mirror_ubuntu-artful-kernel.git] / drivers / scsi / ipr.c
CommitLineData
1da177e4
LT		 1/*
2 * ipr.c -- driver for IBM Power Linux RAID adapters
3 *
4 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation
5 *
6 * Copyright (C) 2003, 2004 IBM Corporation
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24/*
25 * Notes:
26 *
27 * This driver is used to control the following SCSI adapters:
28 *
29 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B
30 *
31 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter
32 * PCI-X Dual Channel Ultra 320 SCSI Adapter
33 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card
34 * Embedded SCSI adapter on p615 and p655 systems
35 *
36 * Supported Hardware Features:
37 * - Ultra 320 SCSI controller
38 * - PCI-X host interface
39 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine
40 * - Non-Volatile Write Cache
41 * - Supports attachment of non-RAID disks, tape, and optical devices
42 * - RAID Levels 0, 5, 10
43 * - Hot spare
44 * - Background Parity Checking
45 * - Background Data Scrubbing
46 * - Ability to increase the capacity of an existing RAID 5 disk array
47 * by adding disks
48 *
49 * Driver Features:
50 * - Tagged command queuing
51 * - Adapter microcode download
52 * - PCI hot plug
53 * - SCSI device hot plug
54 *
55 */
56
1da177e4
LT		 57#include <linux/fs.h>
58#include <linux/init.h>
59#include <linux/types.h>
60#include <linux/errno.h>
61#include <linux/kernel.h>
5a0e3ad6 62#include <linux/slab.h>
4d4dd706 63#include <linux/vmalloc.h>
1da177e4
LT		 64#include <linux/ioport.h>
65#include <linux/delay.h>
66#include <linux/pci.h>
67#include <linux/wait.h>
68#include <linux/spinlock.h>
69#include <linux/sched.h>
70#include <linux/interrupt.h>
71#include <linux/blkdev.h>
72#include <linux/firmware.h>
73#include <linux/module.h>
74#include <linux/moduleparam.h>
35a39691 75#include <linux/libata.h>
0ce3a7e5 76#include <linux/hdreg.h>
f72919ec 77#include <linux/reboot.h>
3e7ebdfa 78#include <linux/stringify.h>
1da177e4
LT		 79#include <asm/io.h>
80#include <asm/irq.h>
81#include <asm/processor.h>
82#include <scsi/scsi.h>
83#include <scsi/scsi_host.h>
84#include <scsi/scsi_tcq.h>
85#include <scsi/scsi_eh.h>
86#include <scsi/scsi_cmnd.h>
1da177e4
LT		 87#include "ipr.h"
88
89/*
90 * Global Data
91 */
b7d68ca3 92static LIST_HEAD(ipr_ioa_head);
1da177e4
LT		 93static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
94static unsigned int ipr_max_speed = 1;
95static int ipr_testmode = 0;
96static unsigned int ipr_fastfail = 0;
5469cb5b 97static unsigned int ipr_transop_timeout = 0;
d3c74871 98static unsigned int ipr_debug = 0;
3e7ebdfa 99static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS;
ac09c349 100static unsigned int ipr_dual_ioa_raid = 1;
05a6538a 101static unsigned int ipr_number_of_msix = 2;
4fdd7c7a 102static unsigned int ipr_fast_reboot;
1da177e4
LT		 103static DEFINE_SPINLOCK(ipr_driver_lock);
104
105/* This table describes the differences between DMA controller chips */
106static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
60e7486b 107 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
1da177e4 108 .mailbox = 0x0042C,
89aad428 109 .max_cmds = 100,
1da177e4 110 .cache_line_size = 0x20,
7dd21308 111 .clear_isr = 1,
b53d124a 112 .iopoll_weight = 0,
1da177e4
LT		 113 {
114 .set_interrupt_mask_reg = 0x0022C,
115 .clr_interrupt_mask_reg = 0x00230,
214777ba 116 .clr_interrupt_mask_reg32 = 0x00230,
1da177e4 117 .sense_interrupt_mask_reg = 0x0022C,
214777ba 118 .sense_interrupt_mask_reg32 = 0x0022C,
1da177e4 119 .clr_interrupt_reg = 0x00228,
214777ba 120 .clr_interrupt_reg32 = 0x00228,
1da177e4 121 .sense_interrupt_reg = 0x00224,
214777ba 122 .sense_interrupt_reg32 = 0x00224,
1da177e4
LT		 123 .ioarrin_reg = 0x00404,
124 .sense_uproc_interrupt_reg = 0x00214,
214777ba 125 .sense_uproc_interrupt_reg32 = 0x00214,
1da177e4 126 .set_uproc_interrupt_reg = 0x00214,
214777ba
WB		 127 .set_uproc_interrupt_reg32 = 0x00214,
128 .clr_uproc_interrupt_reg = 0x00218,
129 .clr_uproc_interrupt_reg32 = 0x00218
1da177e4
LT		 130 }
131 },
132 { /* Snipe and Scamp */
133 .mailbox = 0x0052C,
89aad428 134 .max_cmds = 100,
1da177e4 135 .cache_line_size = 0x20,
7dd21308 136 .clear_isr = 1,
b53d124a 137 .iopoll_weight = 0,
1da177e4
LT		 138 {
139 .set_interrupt_mask_reg = 0x00288,
140 .clr_interrupt_mask_reg = 0x0028C,
214777ba 141 .clr_interrupt_mask_reg32 = 0x0028C,
1da177e4 142 .sense_interrupt_mask_reg = 0x00288,
214777ba 143 .sense_interrupt_mask_reg32 = 0x00288,
1da177e4 144 .clr_interrupt_reg = 0x00284,
214777ba 145 .clr_interrupt_reg32 = 0x00284,
1da177e4 146 .sense_interrupt_reg = 0x00280,
214777ba 147 .sense_interrupt_reg32 = 0x00280,
1da177e4
LT		 148 .ioarrin_reg = 0x00504,
149 .sense_uproc_interrupt_reg = 0x00290,
214777ba 150 .sense_uproc_interrupt_reg32 = 0x00290,
1da177e4 151 .set_uproc_interrupt_reg = 0x00290,
214777ba
WB		 152 .set_uproc_interrupt_reg32 = 0x00290,
153 .clr_uproc_interrupt_reg = 0x00294,
154 .clr_uproc_interrupt_reg32 = 0x00294
1da177e4
LT		 155 }
156 },
a74c1639 157 { /* CRoC */
110def85 158 .mailbox = 0x00044,
89aad428 159 .max_cmds = 1000,
a74c1639 160 .cache_line_size = 0x20,
7dd21308 161 .clear_isr = 0,
b53d124a 162 .iopoll_weight = 64,
a74c1639
WB		 163 {
164 .set_interrupt_mask_reg = 0x00010,
165 .clr_interrupt_mask_reg = 0x00018,
214777ba 166 .clr_interrupt_mask_reg32 = 0x0001C,
a74c1639 167 .sense_interrupt_mask_reg = 0x00010,
214777ba 168 .sense_interrupt_mask_reg32 = 0x00014,
a74c1639 169 .clr_interrupt_reg = 0x00008,
214777ba 170 .clr_interrupt_reg32 = 0x0000C,
a74c1639 171 .sense_interrupt_reg = 0x00000,
214777ba 172 .sense_interrupt_reg32 = 0x00004,
a74c1639
WB		 173 .ioarrin_reg = 0x00070,
174 .sense_uproc_interrupt_reg = 0x00020,
214777ba 175 .sense_uproc_interrupt_reg32 = 0x00024,
a74c1639 176 .set_uproc_interrupt_reg = 0x00020,
214777ba 177 .set_uproc_interrupt_reg32 = 0x00024,
dcbad00e 178 .clr_uproc_interrupt_reg = 0x00028,
214777ba
WB		 179 .clr_uproc_interrupt_reg32 = 0x0002C,
180 .init_feedback_reg = 0x0005C,
dcbad00e 181 .dump_addr_reg = 0x00064,
8701f185
WB		 182 .dump_data_reg = 0x00068,
183 .endian_swap_reg = 0x00084
a74c1639
WB		 184 }
185 },
1da177e4
LT		 186};
187
188static const struct ipr_chip_t ipr_chip[] = {
cb237ef7
WB		 189 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
190 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
191 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
192 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
193 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
194 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
195 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
196 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
cd9b3d04 197 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
1da177e4
LT		 198};
199
203fa3fe 200static int ipr_max_bus_speeds[] = {
1da177e4
LT		 201 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
202};
203
204MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
205MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
206module_param_named(max_speed, ipr_max_speed, uint, 0);
207MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
208module_param_named(log_level, ipr_log_level, uint, 0);
209MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
210module_param_named(testmode, ipr_testmode, int, 0);
211MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
2cf22be0 212module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
1da177e4
LT		 213MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
214module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
215MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
2cf22be0 216module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
d3c74871 217MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
ac09c349
BK		 218module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
219MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
3e7ebdfa
WB		 220module_param_named(max_devs, ipr_max_devs, int, 0);
221MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
222 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
05a6538a 223module_param_named(number_of_msix, ipr_number_of_msix, int, 0);
6634ff7c 224MODULE_PARM_DESC(number_of_msix, "Specify the number of MSIX interrupts to use on capable adapters (1 - 16). (default:2)");
4fdd7c7a
BK		 225module_param_named(fast_reboot, ipr_fast_reboot, int, S_IRUGO | S_IWUSR);
226MODULE_PARM_DESC(fast_reboot, "Skip adapter shutdown during reboot. Set to 1 to enable. (default: 0)");
1da177e4
LT		 227MODULE_LICENSE("GPL");
228MODULE_VERSION(IPR_DRIVER_VERSION);
229
1da177e4
LT		 230/* A constant array of IOASCs/URCs/Error Messages */
231static const
232struct ipr_error_table_t ipr_error_table[] = {
933916f3 233 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 234 "8155: An unknown error was received"},
235 {0x00330000, 0, 0,
236 "Soft underlength error"},
237 {0x005A0000, 0, 0,
238 "Command to be cancelled not found"},
239 {0x00808000, 0, 0,
240 "Qualified success"},
933916f3 241 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 242 "FFFE: Soft device bus error recovered by the IOA"},
933916f3 243 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 244 "4101: Soft device bus fabric error"},
5aa3a333
WB		 245 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
246 "FFFC: Logical block guard error recovered by the device"},
247 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
248 "FFFC: Logical block reference tag error recovered by the device"},
249 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
250 "4171: Recovered scatter list tag / sequence number error"},
251 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
252 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
253 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
254 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
255 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
256 "FFFD: Recovered logical block reference tag error detected by the IOA"},
257 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
258 "FFFD: Logical block guard error recovered by the IOA"},
933916f3 259 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 260 "FFF9: Device sector reassign successful"},
933916f3 261 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 262 "FFF7: Media error recovered by device rewrite procedures"},
933916f3 263 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 264 "7001: IOA sector reassignment successful"},
933916f3 265 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 266 "FFF9: Soft media error. Sector reassignment recommended"},
933916f3 267 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 268 "FFF7: Media error recovered by IOA rewrite procedures"},
933916f3 269 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 270 "FF3D: Soft PCI bus error recovered by the IOA"},
933916f3 271 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 272 "FFF6: Device hardware error recovered by the IOA"},
933916f3 273 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 274 "FFF6: Device hardware error recovered by the device"},
933916f3 275 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 276 "FF3D: Soft IOA error recovered by the IOA"},
933916f3 277 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 278 "FFFA: Undefined device response recovered by the IOA"},
933916f3 279 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 280 "FFF6: Device bus error, message or command phase"},
933916f3 281 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
35a39691 282 "FFFE: Task Management Function failed"},
933916f3 283 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 284 "FFF6: Failure prediction threshold exceeded"},
933916f3 285 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 286 "8009: Impending cache battery pack failure"},
ed7bd661 287 {0x02040100, 0, 0,
288 "Logical Unit in process of becoming ready"},
289 {0x02040200, 0, 0,
290 "Initializing command required"},
1da177e4
LT		 291 {0x02040400, 0, 0,
292 "34FF: Disk device format in progress"},
ed7bd661 293 {0x02040C00, 0, 0,
294 "Logical unit not accessible, target port in unavailable state"},
65f56475
BK		 295 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
296 "9070: IOA requested reset"},
1da177e4
LT		 297 {0x023F0000, 0, 0,
298 "Synchronization required"},
ed7bd661 299 {0x02408500, 0, 0,
300 "IOA microcode download required"},
301 {0x02408600, 0, 0,
302 "Device bus connection is prohibited by host"},
1da177e4
LT		 303 {0x024E0000, 0, 0,
304 "No ready, IOA shutdown"},
305 {0x025A0000, 0, 0,
306 "Not ready, IOA has been shutdown"},
933916f3 307 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 308 "3020: Storage subsystem configuration error"},
309 {0x03110B00, 0, 0,
310 "FFF5: Medium error, data unreadable, recommend reassign"},
311 {0x03110C00, 0, 0,
312 "7000: Medium error, data unreadable, do not reassign"},
933916f3 313 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 314 "FFF3: Disk media format bad"},
933916f3 315 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 316 "3002: Addressed device failed to respond to selection"},
933916f3 317 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 318 "3100: Device bus error"},
933916f3 319 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 320 "3109: IOA timed out a device command"},
321 {0x04088000, 0, 0,
322 "3120: SCSI bus is not operational"},
933916f3 323 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 324 "4100: Hard device bus fabric error"},
5aa3a333
WB		 325 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
326 "310C: Logical block guard error detected by the device"},
327 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
328 "310C: Logical block reference tag error detected by the device"},
329 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
330 "4170: Scatter list tag / sequence number error"},
331 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
332 "8150: Logical block CRC error on IOA to Host transfer"},
333 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
334 "4170: Logical block sequence number error on IOA to Host transfer"},
335 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
336 "310D: Logical block reference tag error detected by the IOA"},
337 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
338 "310D: Logical block guard error detected by the IOA"},
933916f3 339 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 340 "9000: IOA reserved area data check"},
933916f3 341 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 342 "9001: IOA reserved area invalid data pattern"},
933916f3 343 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 344 "9002: IOA reserved area LRC error"},
5aa3a333
WB		 345 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
346 "Hardware Error, IOA metadata access error"},
933916f3 347 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 348 "102E: Out of alternate sectors for disk storage"},
933916f3 349 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 350 "FFF4: Data transfer underlength error"},
933916f3 351 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 352 "FFF4: Data transfer overlength error"},
933916f3 353 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 354 "3400: Logical unit failure"},
933916f3 355 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 356 "FFF4: Device microcode is corrupt"},
933916f3 357 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 358 "8150: PCI bus error"},
359 {0x04430000, 1, 0,
360 "Unsupported device bus message received"},
933916f3 361 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 362 "FFF4: Disk device problem"},
933916f3 363 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 364 "8150: Permanent IOA failure"},
933916f3 365 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 366 "3010: Disk device returned wrong response to IOA"},
933916f3 367 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 368 "8151: IOA microcode error"},
369 {0x04448500, 0, 0,
370 "Device bus status error"},
933916f3 371 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 372 "8157: IOA error requiring IOA reset to recover"},
35a39691
BK		 373 {0x04448700, 0, 0,
374 "ATA device status error"},
1da177e4
LT		 375 {0x04490000, 0, 0,
376 "Message reject received from the device"},
933916f3 377 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 378 "8008: A permanent cache battery pack failure occurred"},
933916f3 379 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 380 "9090: Disk unit has been modified after the last known status"},
933916f3 381 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 382 "9081: IOA detected device error"},
933916f3 383 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 384 "9082: IOA detected device error"},
933916f3 385 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 386 "3110: Device bus error, message or command phase"},
933916f3 387 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
35a39691 388 "3110: SAS Command / Task Management Function failed"},
933916f3 389 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 390 "9091: Incorrect hardware configuration change has been detected"},
933916f3 391 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 392 "9073: Invalid multi-adapter configuration"},
933916f3 393 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 394 "4010: Incorrect connection between cascaded expanders"},
933916f3 395 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 396 "4020: Connections exceed IOA design limits"},
933916f3 397 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 398 "4030: Incorrect multipath connection"},
933916f3 399 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 400 "4110: Unsupported enclosure function"},
ed7bd661 401 {0x04679800, 0, IPR_DEFAULT_LOG_LEVEL,
402 "4120: SAS cable VPD cannot be read"},
933916f3 403 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 404 "FFF4: Command to logical unit failed"},
405 {0x05240000, 1, 0,
406 "Illegal request, invalid request type or request packet"},
407 {0x05250000, 0, 0,
408 "Illegal request, invalid resource handle"},
b0df54bb
BK		 409 {0x05258000, 0, 0,
410 "Illegal request, commands not allowed to this device"},
411 {0x05258100, 0, 0,
412 "Illegal request, command not allowed to a secondary adapter"},
5aa3a333
WB		 413 {0x05258200, 0, 0,
414 "Illegal request, command not allowed to a non-optimized resource"},
1da177e4
LT		 415 {0x05260000, 0, 0,
416 "Illegal request, invalid field in parameter list"},
417 {0x05260100, 0, 0,
418 "Illegal request, parameter not supported"},
419 {0x05260200, 0, 0,
420 "Illegal request, parameter value invalid"},
421 {0x052C0000, 0, 0,
422 "Illegal request, command sequence error"},
b0df54bb
BK		 423 {0x052C8000, 1, 0,
424 "Illegal request, dual adapter support not enabled"},
ed7bd661 425 {0x052C8100, 1, 0,
426 "Illegal request, another cable connector was physically disabled"},
427 {0x054E8000, 1, 0,
428 "Illegal request, inconsistent group id/group count"},
933916f3 429 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 430 "9031: Array protection temporarily suspended, protection resuming"},
933916f3 431 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 432 "9040: Array protection temporarily suspended, protection resuming"},
ed7bd661 433 {0x060B0100, 0, IPR_DEFAULT_LOG_LEVEL,
434 "4080: IOA exceeded maximum operating temperature"},
435 {0x060B8000, 0, IPR_DEFAULT_LOG_LEVEL,
436 "4085: Service required"},
933916f3 437 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 438 "3140: Device bus not ready to ready transition"},
933916f3 439 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 440 "FFFB: SCSI bus was reset"},
441 {0x06290500, 0, 0,
442 "FFFE: SCSI bus transition to single ended"},
443 {0x06290600, 0, 0,
444 "FFFE: SCSI bus transition to LVD"},
933916f3 445 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 446 "FFFB: SCSI bus was reset by another initiator"},
933916f3 447 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 448 "3029: A device replacement has occurred"},
ed7bd661 449 {0x063F8300, 0, IPR_DEFAULT_LOG_LEVEL,
450 "4102: Device bus fabric performance degradation"},
933916f3 451 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 452 "9051: IOA cache data exists for a missing or failed device"},
933916f3 453 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 454 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
933916f3 455 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 456 "9025: Disk unit is not supported at its physical location"},
933916f3 457 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 458 "3020: IOA detected a SCSI bus configuration error"},
933916f3 459 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 460 "3150: SCSI bus configuration error"},
933916f3 461 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 462 "9074: Asymmetric advanced function disk configuration"},
933916f3 463 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 464 "4040: Incomplete multipath connection between IOA and enclosure"},
933916f3 465 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 466 "4041: Incomplete multipath connection between enclosure and device"},
933916f3 467 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 468 "9075: Incomplete multipath connection between IOA and remote IOA"},
933916f3 469 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 470 "9076: Configuration error, missing remote IOA"},
933916f3 471 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 472 "4050: Enclosure does not support a required multipath function"},
ed7bd661 473 {0x06679800, 0, IPR_DEFAULT_LOG_LEVEL,
474 "4121: Configuration error, required cable is missing"},
475 {0x06679900, 0, IPR_DEFAULT_LOG_LEVEL,
476 "4122: Cable is not plugged into the correct location on remote IOA"},
477 {0x06679A00, 0, IPR_DEFAULT_LOG_LEVEL,
478 "4123: Configuration error, invalid cable vital product data"},
479 {0x06679B00, 0, IPR_DEFAULT_LOG_LEVEL,
480 "4124: Configuration error, both cable ends are plugged into the same IOA"},
b75424fc
WB		 481 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
482 "4070: Logically bad block written on device"},
933916f3 483 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 484 "9041: Array protection temporarily suspended"},
933916f3 485 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 486 "9042: Corrupt array parity detected on specified device"},
933916f3 487 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 488 "9030: Array no longer protected due to missing or failed disk unit"},
933916f3 489 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 490 "9071: Link operational transition"},
933916f3 491 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 492 "9072: Link not operational transition"},
933916f3 493 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 494 "9032: Array exposed but still protected"},
e435340c
BK		 495 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
496 "70DD: Device forced failed by disrupt device command"},
933916f3 497 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 498 "4061: Multipath redundancy level got better"},
933916f3 499 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 500 "4060: Multipath redundancy level got worse"},
f8ee25d7
WX		 501 {0x06808100, 0, IPR_DEFAULT_LOG_LEVEL,
502 "9083: Device raw mode enabled"},
503 {0x06808200, 0, IPR_DEFAULT_LOG_LEVEL,
504 "9084: Device raw mode disabled"},
1da177e4
LT		 505 {0x07270000, 0, 0,
506 "Failure due to other device"},
933916f3 507 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 508 "9008: IOA does not support functions expected by devices"},
933916f3 509 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 510 "9010: Cache data associated with attached devices cannot be found"},
933916f3 511 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 512 "9011: Cache data belongs to devices other than those attached"},
933916f3 513 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 514 "9020: Array missing 2 or more devices with only 1 device present"},
933916f3 515 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 516 "9021: Array missing 2 or more devices with 2 or more devices present"},
933916f3 517 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 518 "9022: Exposed array is missing a required device"},
933916f3 519 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 520 "9023: Array member(s) not at required physical locations"},
933916f3 521 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 522 "9024: Array not functional due to present hardware configuration"},
933916f3 523 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 524 "9026: Array not functional due to present hardware configuration"},
933916f3 525 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 526 "9027: Array is missing a device and parity is out of sync"},
933916f3 527 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 528 "9028: Maximum number of arrays already exist"},
933916f3 529 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 530 "9050: Required cache data cannot be located for a disk unit"},
933916f3 531 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 532 "9052: Cache data exists for a device that has been modified"},
933916f3 533 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 534 "9054: IOA resources not available due to previous problems"},
933916f3 535 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 536 "9092: Disk unit requires initialization before use"},
933916f3 537 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 538 "9029: Incorrect hardware configuration change has been detected"},
933916f3 539 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 540 "9060: One or more disk pairs are missing from an array"},
933916f3 541 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 542 "9061: One or more disks are missing from an array"},
933916f3 543 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 544 "9062: One or more disks are missing from an array"},
933916f3 545 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 546 "9063: Maximum number of functional arrays has been exceeded"},
ed7bd661 547 {0x07279A00, 0, 0,
548 "Data protect, other volume set problem"},
1da177e4
LT		 549 {0x0B260000, 0, 0,
550 "Aborted command, invalid descriptor"},
ed7bd661 551 {0x0B3F9000, 0, 0,
552 "Target operating conditions have changed, dual adapter takeover"},
553 {0x0B530200, 0, 0,
554 "Aborted command, medium removal prevented"},
1da177e4 555 {0x0B5A0000, 0, 0,
ed7bd661 556 "Command terminated by host"},
557 {0x0B5B8000, 0, 0,
558 "Aborted command, command terminated by host"}
1da177e4
LT		 559};
560
561static const struct ipr_ses_table_entry ipr_ses_table[] = {
562 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
563 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
564 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
565 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
566 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
567 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
568 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
569 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
570 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
571 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
572 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
573 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
574 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
575};
576
577/*
578 * Function Prototypes
579 */
580static int ipr_reset_alert(struct ipr_cmnd *);
581static void ipr_process_ccn(struct ipr_cmnd *);
582static void ipr_process_error(struct ipr_cmnd *);
583static void ipr_reset_ioa_job(struct ipr_cmnd *);
584static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
585 enum ipr_shutdown_type);
586
587#ifdef CONFIG_SCSI_IPR_TRACE
588/**
589 * ipr_trc_hook - Add a trace entry to the driver trace
590 * @ipr_cmd: ipr command struct
591 * @type: trace type
592 * @add_data: additional data
593 *
594 * Return value:
595 * none
596 **/
597static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
598 u8 type, u32 add_data)
599{
600 struct ipr_trace_entry *trace_entry;
601 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
bb7c5433 602 unsigned int trace_index;
1da177e4 603
bb7c5433
BK		 604 trace_index = atomic_add_return(1, &ioa_cfg->trace_index) & IPR_TRACE_INDEX_MASK;
605 trace_entry = &ioa_cfg->trace[trace_index];
1da177e4
LT		 606 trace_entry->time = jiffies;
607 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
608 trace_entry->type = type;
a32c055f
WB		 609 if (ipr_cmd->ioa_cfg->sis64)
610 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
611 else
612 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
35a39691 613 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
1da177e4
LT		 614 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
615 trace_entry->u.add_data = add_data;
56d6aa33 616 wmb();
1da177e4
LT		 617}
618#else
203fa3fe 619#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while (0)
1da177e4
LT		 620#endif
621
172cd6e1
BK		 622/**
623 * ipr_lock_and_done - Acquire lock and complete command
624 * @ipr_cmd: ipr command struct
625 *
626 * Return value:
627 * none
628 **/
629static void ipr_lock_and_done(struct ipr_cmnd *ipr_cmd)
630{
631 unsigned long lock_flags;
632 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
633
634 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
635 ipr_cmd->done(ipr_cmd);
636 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
637}
638
1da177e4
LT		 639/**
640 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
641 * @ipr_cmd: ipr command struct
642 *
643 * Return value:
644 * none
645 **/
646static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
647{
648 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00
WB		 649 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
650 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
a32c055f 651 dma_addr_t dma_addr = ipr_cmd->dma_addr;
05a6538a 652 int hrrq_id;
1da177e4 653
05a6538a 654 hrrq_id = ioarcb->cmd_pkt.hrrq_id;
1da177e4 655 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
05a6538a 656 ioarcb->cmd_pkt.hrrq_id = hrrq_id;
a32c055f 657 ioarcb->data_transfer_length = 0;
1da177e4 658 ioarcb->read_data_transfer_length = 0;
a32c055f 659 ioarcb->ioadl_len = 0;
1da177e4 660 ioarcb->read_ioadl_len = 0;
a32c055f 661
96d21f00 662 if (ipr_cmd->ioa_cfg->sis64) {
a32c055f
WB		 663 ioarcb->u.sis64_addr_data.data_ioadl_addr =
664 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
96d21f00
WB		 665 ioasa64->u.gata.status = 0;
666 } else {
a32c055f
WB		 667 ioarcb->write_ioadl_addr =
668 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
669 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
96d21f00 670 ioasa->u.gata.status = 0;
a32c055f
WB		 671 }
672
96d21f00
WB		 673 ioasa->hdr.ioasc = 0;
674 ioasa->hdr.residual_data_len = 0;
1da177e4 675 ipr_cmd->scsi_cmd = NULL;
35a39691 676 ipr_cmd->qc = NULL;
1da177e4
LT		 677 ipr_cmd->sense_buffer[0] = 0;
678 ipr_cmd->dma_use_sg = 0;
679}
680
681/**
682 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
683 * @ipr_cmd: ipr command struct
684 *
685 * Return value:
686 * none
687 **/
172cd6e1
BK		 688static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd,
689 void (*fast_done) (struct ipr_cmnd *))
1da177e4
LT		 690{
691 ipr_reinit_ipr_cmnd(ipr_cmd);
692 ipr_cmd->u.scratch = 0;
693 ipr_cmd->sibling = NULL;
6cdb0817 694 ipr_cmd->eh_comp = NULL;
172cd6e1 695 ipr_cmd->fast_done = fast_done;
1da177e4
LT		 696 init_timer(&ipr_cmd->timer);
697}
698
699/**
00bfef2c 700 * __ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
1da177e4
LT		 701 * @ioa_cfg: ioa config struct
702 *
703 * Return value:
704 * pointer to ipr command struct
705 **/
706static
05a6538a 707struct ipr_cmnd *__ipr_get_free_ipr_cmnd(struct ipr_hrr_queue *hrrq)
1da177e4 708{
05a6538a 709 struct ipr_cmnd *ipr_cmd = NULL;
710
711 if (likely(!list_empty(&hrrq->hrrq_free_q))) {
712 ipr_cmd = list_entry(hrrq->hrrq_free_q.next,
713 struct ipr_cmnd, queue);
714 list_del(&ipr_cmd->queue);
715 }
1da177e4 716
1da177e4
LT		 717
718 return ipr_cmd;
719}
720
00bfef2c
BK		 721/**
722 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block and initialize it
723 * @ioa_cfg: ioa config struct
724 *
725 * Return value:
726 * pointer to ipr command struct
727 **/
728static
729struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
730{
05a6538a 731 struct ipr_cmnd *ipr_cmd =
732 __ipr_get_free_ipr_cmnd(&ioa_cfg->hrrq[IPR_INIT_HRRQ]);
172cd6e1 733 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
00bfef2c
BK		 734 return ipr_cmd;
735}
736
1da177e4
LT		 737/**
738 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
739 * @ioa_cfg: ioa config struct
740 * @clr_ints: interrupts to clear
741 *
742 * This function masks all interrupts on the adapter, then clears the
743 * interrupts specified in the mask
744 *
745 * Return value:
746 * none
747 **/
748static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
749 u32 clr_ints)
750{
751 volatile u32 int_reg;
56d6aa33 752 int i;
1da177e4
LT		 753
754 /* Stop new interrupts */
56d6aa33 755 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
756 spin_lock(&ioa_cfg->hrrq[i]._lock);
757 ioa_cfg->hrrq[i].allow_interrupts = 0;
758 spin_unlock(&ioa_cfg->hrrq[i]._lock);
759 }
760 wmb();
1da177e4
LT		 761
762 /* Set interrupt mask to stop all new interrupts */
214777ba
WB		 763 if (ioa_cfg->sis64)
764 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
765 else
766 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
1da177e4
LT		 767
768 /* Clear any pending interrupts */
214777ba
WB		 769 if (ioa_cfg->sis64)
770 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
771 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
1da177e4
LT		 772 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
773}
774
775/**
776 * ipr_save_pcix_cmd_reg - Save PCI-X command register
777 * @ioa_cfg: ioa config struct
778 *
779 * Return value:
780 * 0 on success / -EIO on failure
781 **/
782static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
783{
784 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
785
7dce0e1c
BK		 786 if (pcix_cmd_reg == 0)
787 return 0;
1da177e4
LT		 788
789 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
790 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
791 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
792 return -EIO;
793 }
794
795 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
796 return 0;
797}
798
799/**
800 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
801 * @ioa_cfg: ioa config struct
802 *
803 * Return value:
804 * 0 on success / -EIO on failure
805 **/
806static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
807{
808 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
809
810 if (pcix_cmd_reg) {
811 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
812 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
813 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
814 return -EIO;
815 }
1da177e4
LT		 816 }
817
818 return 0;
819}
820
35a39691
BK		 821/**
822 * ipr_sata_eh_done - done function for aborted SATA commands
823 * @ipr_cmd: ipr command struct
824 *
825 * This function is invoked for ops generated to SATA
826 * devices which are being aborted.
827 *
828 * Return value:
829 * none
830 **/
831static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
832{
35a39691
BK		 833 struct ata_queued_cmd *qc = ipr_cmd->qc;
834 struct ipr_sata_port *sata_port = qc->ap->private_data;
835
836 qc->err_mask |= AC_ERR_OTHER;
837 sata_port->ioasa.status |= ATA_BUSY;
05a6538a 838 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
35a39691
BK		 839 ata_qc_complete(qc);
840}
841
1da177e4
LT		 842/**
843 * ipr_scsi_eh_done - mid-layer done function for aborted ops
844 * @ipr_cmd: ipr command struct
845 *
846 * This function is invoked by the interrupt handler for
847 * ops generated by the SCSI mid-layer which are being aborted.
848 *
849 * Return value:
850 * none
851 **/
852static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
853{
1da177e4
LT		 854 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
855
856 scsi_cmd->result |= (DID_ERROR << 16);
857
63015bc9 858 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4 859 scsi_cmd->scsi_done(scsi_cmd);
6cdb0817
BK		 860 if (ipr_cmd->eh_comp)
861 complete(ipr_cmd->eh_comp);
05a6538a 862 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 863}
864
865/**
866 * ipr_fail_all_ops - Fails all outstanding ops.
867 * @ioa_cfg: ioa config struct
868 *
869 * This function fails all outstanding ops.
870 *
871 * Return value:
872 * none
873 **/
874static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
875{
876 struct ipr_cmnd *ipr_cmd, *temp;
05a6538a 877 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 878
879 ENTER;
05a6538a 880 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 881 spin_lock(&hrrq->_lock);
05a6538a 882 list_for_each_entry_safe(ipr_cmd,
883 temp, &hrrq->hrrq_pending_q, queue) {
884 list_del(&ipr_cmd->queue);
1da177e4 885
05a6538a 886 ipr_cmd->s.ioasa.hdr.ioasc =
887 cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
888 ipr_cmd->s.ioasa.hdr.ilid =
889 cpu_to_be32(IPR_DRIVER_ILID);
1da177e4 890
05a6538a 891 if (ipr_cmd->scsi_cmd)
892 ipr_cmd->done = ipr_scsi_eh_done;
893 else if (ipr_cmd->qc)
894 ipr_cmd->done = ipr_sata_eh_done;
1da177e4 895
05a6538a 896 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH,
897 IPR_IOASC_IOA_WAS_RESET);
898 del_timer(&ipr_cmd->timer);
899 ipr_cmd->done(ipr_cmd);
900 }
56d6aa33 901 spin_unlock(&hrrq->_lock);
1da177e4 902 }
1da177e4
LT		 903 LEAVE;
904}
905
a32c055f
WB		 906/**
907 * ipr_send_command - Send driver initiated requests.
908 * @ipr_cmd: ipr command struct
909 *
910 * This function sends a command to the adapter using the correct write call.
911 * In the case of sis64, calculate the ioarcb size required. Then or in the
912 * appropriate bits.
913 *
914 * Return value:
915 * none
916 **/
917static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
918{
919 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
920 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
921
922 if (ioa_cfg->sis64) {
923 /* The default size is 256 bytes */
924 send_dma_addr |= 0x1;
925
926 /* If the number of ioadls * size of ioadl > 128 bytes,
927 then use a 512 byte ioarcb */
928 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
929 send_dma_addr |= 0x4;
930 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
931 } else
932 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
933}
934
1da177e4
LT		 935/**
936 * ipr_do_req - Send driver initiated requests.
937 * @ipr_cmd: ipr command struct
938 * @done: done function
939 * @timeout_func: timeout function
940 * @timeout: timeout value
941 *
942 * This function sends the specified command to the adapter with the
943 * timeout given. The done function is invoked on command completion.
944 *
945 * Return value:
946 * none
947 **/
948static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
949 void (*done) (struct ipr_cmnd *),
950 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
951{
05a6538a 952 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 953
954 ipr_cmd->done = done;
955
956 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
957 ipr_cmd->timer.expires = jiffies + timeout;
958 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
959
960 add_timer(&ipr_cmd->timer);
961
962 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
963
a32c055f 964 ipr_send_command(ipr_cmd);
1da177e4
LT		 965}
966
967/**
968 * ipr_internal_cmd_done - Op done function for an internally generated op.
969 * @ipr_cmd: ipr command struct
970 *
971 * This function is the op done function for an internally generated,
972 * blocking op. It simply wakes the sleeping thread.
973 *
974 * Return value:
975 * none
976 **/
977static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
978{
979 if (ipr_cmd->sibling)
980 ipr_cmd->sibling = NULL;
981 else
982 complete(&ipr_cmd->completion);
983}
984
a32c055f
WB		 985/**
986 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
987 * @ipr_cmd: ipr command struct
988 * @dma_addr: dma address
989 * @len: transfer length
990 * @flags: ioadl flag value
991 *
992 * This function initializes an ioadl in the case where there is only a single
993 * descriptor.
994 *
995 * Return value:
996 * nothing
997 **/
998static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
999 u32 len, int flags)
1000{
1001 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1002 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
1003
1004 ipr_cmd->dma_use_sg = 1;
1005
1006 if (ipr_cmd->ioa_cfg->sis64) {
1007 ioadl64->flags = cpu_to_be32(flags);
1008 ioadl64->data_len = cpu_to_be32(len);
1009 ioadl64->address = cpu_to_be64(dma_addr);
1010
1011 ipr_cmd->ioarcb.ioadl_len =
1012 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
1013 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1014 } else {
1015 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
1016 ioadl->address = cpu_to_be32(dma_addr);
1017
1018 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
1019 ipr_cmd->ioarcb.read_ioadl_len =
1020 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1021 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
1022 } else {
1023 ipr_cmd->ioarcb.ioadl_len =
1024 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1025 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1026 }
1027 }
1028}
1029
1da177e4
LT		 1030/**
1031 * ipr_send_blocking_cmd - Send command and sleep on its completion.
1032 * @ipr_cmd: ipr command struct
1033 * @timeout_func: function to invoke if command times out
1034 * @timeout: timeout
1035 *
1036 * Return value:
1037 * none
1038 **/
1039static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
1040 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
1041 u32 timeout)
1042{
1043 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1044
1045 init_completion(&ipr_cmd->completion);
1046 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
1047
1048 spin_unlock_irq(ioa_cfg->host->host_lock);
1049 wait_for_completion(&ipr_cmd->completion);
1050 spin_lock_irq(ioa_cfg->host->host_lock);
1051}
1052
05a6538a 1053static int ipr_get_hrrq_index(struct ipr_ioa_cfg *ioa_cfg)
1054{
3f1c0581
BK		 1055 unsigned int hrrq;
1056
05a6538a 1057 if (ioa_cfg->hrrq_num == 1)
3f1c0581
BK		 1058 hrrq = 0;
1059 else {
1060 hrrq = atomic_add_return(1, &ioa_cfg->hrrq_index);
1061 hrrq = (hrrq % (ioa_cfg->hrrq_num - 1)) + 1;
1062 }
1063 return hrrq;
05a6538a 1064}
1065
1da177e4
LT		 1066/**
1067 * ipr_send_hcam - Send an HCAM to the adapter.
1068 * @ioa_cfg: ioa config struct
1069 * @type: HCAM type
1070 * @hostrcb: hostrcb struct
1071 *
1072 * This function will send a Host Controlled Async command to the adapter.
1073 * If HCAMs are currently not allowed to be issued to the adapter, it will
1074 * place the hostrcb on the free queue.
1075 *
1076 * Return value:
1077 * none
1078 **/
1079static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
1080 struct ipr_hostrcb *hostrcb)
1081{
1082 struct ipr_cmnd *ipr_cmd;
1083 struct ipr_ioarcb *ioarcb;
1084
56d6aa33 1085 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
1da177e4 1086 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
05a6538a 1087 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 1088 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
1089
1090 ipr_cmd->u.hostrcb = hostrcb;
1091 ioarcb = &ipr_cmd->ioarcb;
1092
1093 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1094 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
1095 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
1096 ioarcb->cmd_pkt.cdb[1] = type;
1097 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
1098 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
1099
a32c055f
WB		 1100 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
1101 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 1102
1103 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
1104 ipr_cmd->done = ipr_process_ccn;
1105 else
1106 ipr_cmd->done = ipr_process_error;
1107
1108 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
1109
a32c055f 1110 ipr_send_command(ipr_cmd);
1da177e4
LT		 1111 } else {
1112 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
1113 }
1114}
1115
3e7ebdfa
WB		 1116/**
1117 * ipr_update_ata_class - Update the ata class in the resource entry
1118 * @res: resource entry struct
1119 * @proto: cfgte device bus protocol value
1120 *
1121 * Return value:
1122 * none
1123 **/
1124static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1125{
203fa3fe 1126 switch (proto) {
3e7ebdfa
WB		 1127 case IPR_PROTO_SATA:
1128 case IPR_PROTO_SAS_STP:
1129 res->ata_class = ATA_DEV_ATA;
1130 break;
1131 case IPR_PROTO_SATA_ATAPI:
1132 case IPR_PROTO_SAS_STP_ATAPI:
1133 res->ata_class = ATA_DEV_ATAPI;
1134 break;
1135 default:
1136 res->ata_class = ATA_DEV_UNKNOWN;
1137 break;
1138 };
1139}
1140
1da177e4
LT		 1141/**
1142 * ipr_init_res_entry - Initialize a resource entry struct.
1143 * @res: resource entry struct
3e7ebdfa 1144 * @cfgtew: config table entry wrapper struct
1da177e4
LT		 1145 *
1146 * Return value:
1147 * none
1148 **/
3e7ebdfa
WB		 1149static void ipr_init_res_entry(struct ipr_resource_entry *res,
1150 struct ipr_config_table_entry_wrapper *cfgtew)
1da177e4 1151{
3e7ebdfa
WB		 1152 int found = 0;
1153 unsigned int proto;
1154 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1155 struct ipr_resource_entry *gscsi_res = NULL;
1156
ee0a90fa 1157 res->needs_sync_complete = 0;
1da177e4
LT		 1158 res->in_erp = 0;
1159 res->add_to_ml = 0;
1160 res->del_from_ml = 0;
1161 res->resetting_device = 0;
0b1f8d44 1162 res->reset_occurred = 0;
1da177e4 1163 res->sdev = NULL;
35a39691 1164 res->sata_port = NULL;
3e7ebdfa
WB		 1165
1166 if (ioa_cfg->sis64) {
1167 proto = cfgtew->u.cfgte64->proto;
359d96e7
BK		 1168 res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
1169 res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
3e7ebdfa 1170 res->qmodel = IPR_QUEUEING_MODEL64(res);
438b0331 1171 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1172
1173 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1174 sizeof(res->res_path));
1175
1176 res->bus = 0;
0cb992ed
WB		 1177 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1178 sizeof(res->dev_lun.scsi_lun));
3e7ebdfa
WB		 1179 res->lun = scsilun_to_int(&res->dev_lun);
1180
1181 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1182 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1183 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1184 found = 1;
1185 res->target = gscsi_res->target;
1186 break;
1187 }
1188 }
1189 if (!found) {
1190 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1191 ioa_cfg->max_devs_supported);
1192 set_bit(res->target, ioa_cfg->target_ids);
1193 }
3e7ebdfa
WB		 1194 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1195 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1196 res->target = 0;
1197 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1198 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1199 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1200 ioa_cfg->max_devs_supported);
1201 set_bit(res->target, ioa_cfg->array_ids);
1202 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1203 res->bus = IPR_VSET_VIRTUAL_BUS;
1204 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1205 ioa_cfg->max_devs_supported);
1206 set_bit(res->target, ioa_cfg->vset_ids);
1207 } else {
1208 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1209 ioa_cfg->max_devs_supported);
1210 set_bit(res->target, ioa_cfg->target_ids);
1211 }
1212 } else {
1213 proto = cfgtew->u.cfgte->proto;
1214 res->qmodel = IPR_QUEUEING_MODEL(res);
1215 res->flags = cfgtew->u.cfgte->flags;
1216 if (res->flags & IPR_IS_IOA_RESOURCE)
1217 res->type = IPR_RES_TYPE_IOAFP;
1218 else
1219 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1220
1221 res->bus = cfgtew->u.cfgte->res_addr.bus;
1222 res->target = cfgtew->u.cfgte->res_addr.target;
1223 res->lun = cfgtew->u.cfgte->res_addr.lun;
46d74563 1224 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
3e7ebdfa
WB		 1225 }
1226
1227 ipr_update_ata_class(res, proto);
1228}
1229
1230/**
1231 * ipr_is_same_device - Determine if two devices are the same.
1232 * @res: resource entry struct
1233 * @cfgtew: config table entry wrapper struct
1234 *
1235 * Return value:
1236 * 1 if the devices are the same / 0 otherwise
1237 **/
1238static int ipr_is_same_device(struct ipr_resource_entry *res,
1239 struct ipr_config_table_entry_wrapper *cfgtew)
1240{
1241 if (res->ioa_cfg->sis64) {
1242 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1243 sizeof(cfgtew->u.cfgte64->dev_id)) &&
0cb992ed 1244 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
3e7ebdfa
WB		 1245 sizeof(cfgtew->u.cfgte64->lun))) {
1246 return 1;
1247 }
1248 } else {
1249 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1250 res->target == cfgtew->u.cfgte->res_addr.target &&
1251 res->lun == cfgtew->u.cfgte->res_addr.lun)
1252 return 1;
1253 }
1254
1255 return 0;
1256}
1257
1258/**
b3b3b407 1259 * __ipr_format_res_path - Format the resource path for printing.
3e7ebdfa
WB		 1260 * @res_path: resource path
1261 * @buf: buffer
b3b3b407 1262 * @len: length of buffer provided
3e7ebdfa
WB		 1263 *
1264 * Return value:
1265 * pointer to buffer
1266 **/
b3b3b407 1267static char *__ipr_format_res_path(u8 *res_path, char *buffer, int len)
3e7ebdfa
WB		 1268{
1269 int i;
5adcbeb3 1270 char *p = buffer;
3e7ebdfa 1271
46d74563 1272 *p = '\0';
5adcbeb3
WB		 1273 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1274 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1275 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
3e7ebdfa
WB		 1276
1277 return buffer;
1278}
1279
b3b3b407
BK		 1280/**
1281 * ipr_format_res_path - Format the resource path for printing.
1282 * @ioa_cfg: ioa config struct
1283 * @res_path: resource path
1284 * @buf: buffer
1285 * @len: length of buffer provided
1286 *
1287 * Return value:
1288 * pointer to buffer
1289 **/
1290static char *ipr_format_res_path(struct ipr_ioa_cfg *ioa_cfg,
1291 u8 *res_path, char *buffer, int len)
1292{
1293 char *p = buffer;
1294
1295 *p = '\0';
1296 p += snprintf(p, buffer + len - p, "%d/", ioa_cfg->host->host_no);
1297 __ipr_format_res_path(res_path, p, len - (buffer - p));
1298 return buffer;
1299}
1300
3e7ebdfa
WB		 1301/**
1302 * ipr_update_res_entry - Update the resource entry.
1303 * @res: resource entry struct
1304 * @cfgtew: config table entry wrapper struct
1305 *
1306 * Return value:
1307 * none
1308 **/
1309static void ipr_update_res_entry(struct ipr_resource_entry *res,
1310 struct ipr_config_table_entry_wrapper *cfgtew)
1311{
1312 char buffer[IPR_MAX_RES_PATH_LENGTH];
1313 unsigned int proto;
1314 int new_path = 0;
1315
1316 if (res->ioa_cfg->sis64) {
359d96e7
BK		 1317 res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
1318 res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
75576bb9 1319 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1320
1321 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1322 sizeof(struct ipr_std_inq_data));
1323
1324 res->qmodel = IPR_QUEUEING_MODEL64(res);
1325 proto = cfgtew->u.cfgte64->proto;
1326 res->res_handle = cfgtew->u.cfgte64->res_handle;
1327 res->dev_id = cfgtew->u.cfgte64->dev_id;
1328
1329 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1330 sizeof(res->dev_lun.scsi_lun));
1331
1332 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1333 sizeof(res->res_path))) {
1334 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1335 sizeof(res->res_path));
1336 new_path = 1;
1337 }
1338
1339 if (res->sdev && new_path)
1340 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
b3b3b407
BK		 1341 ipr_format_res_path(res->ioa_cfg,
1342 res->res_path, buffer, sizeof(buffer)));
3e7ebdfa
WB		 1343 } else {
1344 res->flags = cfgtew->u.cfgte->flags;
1345 if (res->flags & IPR_IS_IOA_RESOURCE)
1346 res->type = IPR_RES_TYPE_IOAFP;
1347 else
1348 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1349
1350 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1351 sizeof(struct ipr_std_inq_data));
1352
1353 res->qmodel = IPR_QUEUEING_MODEL(res);
1354 proto = cfgtew->u.cfgte->proto;
1355 res->res_handle = cfgtew->u.cfgte->res_handle;
1356 }
1357
1358 ipr_update_ata_class(res, proto);
1359}
1360
1361/**
1362 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1363 * for the resource.
1364 * @res: resource entry struct
1365 * @cfgtew: config table entry wrapper struct
1366 *
1367 * Return value:
1368 * none
1369 **/
1370static void ipr_clear_res_target(struct ipr_resource_entry *res)
1371{
1372 struct ipr_resource_entry *gscsi_res = NULL;
1373 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1374
1375 if (!ioa_cfg->sis64)
1376 return;
1377
1378 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1379 clear_bit(res->target, ioa_cfg->array_ids);
1380 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1381 clear_bit(res->target, ioa_cfg->vset_ids);
1382 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1383 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1384 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1385 return;
1386 clear_bit(res->target, ioa_cfg->target_ids);
1387
1388 } else if (res->bus == 0)
1389 clear_bit(res->target, ioa_cfg->target_ids);
1da177e4
LT		 1390}
1391
1392/**
1393 * ipr_handle_config_change - Handle a config change from the adapter
1394 * @ioa_cfg: ioa config struct
1395 * @hostrcb: hostrcb
1396 *
1397 * Return value:
1398 * none
1399 **/
1400static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
3e7ebdfa 1401 struct ipr_hostrcb *hostrcb)
1da177e4
LT		 1402{
1403 struct ipr_resource_entry *res = NULL;
3e7ebdfa
WB		 1404 struct ipr_config_table_entry_wrapper cfgtew;
1405 __be32 cc_res_handle;
1406
1da177e4
LT		 1407 u32 is_ndn = 1;
1408
3e7ebdfa
WB		 1409 if (ioa_cfg->sis64) {
1410 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1411 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1412 } else {
1413 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1414 cc_res_handle = cfgtew.u.cfgte->res_handle;
1415 }
1da177e4
LT		 1416
1417 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 1418 if (res->res_handle == cc_res_handle) {
1da177e4
LT		 1419 is_ndn = 0;
1420 break;
1421 }
1422 }
1423
1424 if (is_ndn) {
1425 if (list_empty(&ioa_cfg->free_res_q)) {
1426 ipr_send_hcam(ioa_cfg,
1427 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1428 hostrcb);
1429 return;
1430 }
1431
1432 res = list_entry(ioa_cfg->free_res_q.next,
1433 struct ipr_resource_entry, queue);
1434
1435 list_del(&res->queue);
3e7ebdfa 1436 ipr_init_res_entry(res, &cfgtew);
1da177e4
LT		 1437 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1438 }
1439
3e7ebdfa 1440 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 1441
1442 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1443 if (res->sdev) {
1da177e4 1444 res->del_from_ml = 1;
3e7ebdfa 1445 res->res_handle = IPR_INVALID_RES_HANDLE;
f688f96d 1446 schedule_work(&ioa_cfg->work_q);
3e7ebdfa
WB		 1447 } else {
1448 ipr_clear_res_target(res);
1da177e4 1449 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3e7ebdfa 1450 }
5767a1c4 1451 } else if (!res->sdev || res->del_from_ml) {
1da177e4 1452 res->add_to_ml = 1;
f688f96d 1453 schedule_work(&ioa_cfg->work_q);
1da177e4
LT		 1454 }
1455
1456 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1457}
1458
1459/**
1460 * ipr_process_ccn - Op done function for a CCN.
1461 * @ipr_cmd: ipr command struct
1462 *
1463 * This function is the op done function for a configuration
1464 * change notification host controlled async from the adapter.
1465 *
1466 * Return value:
1467 * none
1468 **/
1469static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1470{
1471 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1472 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 1473 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 1474
1475 list_del(&hostrcb->queue);
05a6538a 1476 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 1477
1478 if (ioasc) {
4fdd7c7a
BK		 1479 if (ioasc != IPR_IOASC_IOA_WAS_RESET &&
1480 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST)
1da177e4
LT		 1481 dev_err(&ioa_cfg->pdev->dev,
1482 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1483
1484 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1485 } else {
1486 ipr_handle_config_change(ioa_cfg, hostrcb);
1487 }
1488}
1489
8cf093e2
BK		 1490/**
1491 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1492 * @i: index into buffer
1493 * @buf: string to modify
1494 *
1495 * This function will strip all trailing whitespace, pad the end
1496 * of the string with a single space, and NULL terminate the string.
1497 *
1498 * Return value:
1499 * new length of string
1500 **/
1501static int strip_and_pad_whitespace(int i, char *buf)
1502{
1503 while (i && buf[i] == ' ')
1504 i--;
1505 buf[i+1] = ' ';
1506 buf[i+2] = '\0';
1507 return i + 2;
1508}
1509
1510/**
1511 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1512 * @prefix: string to print at start of printk
1513 * @hostrcb: hostrcb pointer
1514 * @vpd: vendor/product id/sn struct
1515 *
1516 * Return value:
1517 * none
1518 **/
1519static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1520 struct ipr_vpd *vpd)
1521{
1522 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1523 int i = 0;
1524
1525 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1526 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1527
1528 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1529 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1530
1531 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1532 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1533
1534 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1535}
1536
1da177e4
LT		 1537/**
1538 * ipr_log_vpd - Log the passed VPD to the error log.
cfc32139 1539 * @vpd: vendor/product id/sn struct
1da177e4
LT		 1540 *
1541 * Return value:
1542 * none
1543 **/
cfc32139 1544static void ipr_log_vpd(struct ipr_vpd *vpd)
1da177e4
LT		 1545{
1546 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1547 + IPR_SERIAL_NUM_LEN];
1548
cfc32139
BK		 1549 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1550 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1da177e4
LT		 1551 IPR_PROD_ID_LEN);
1552 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1553 ipr_err("Vendor/Product ID: %s\n", buffer);
1554
cfc32139 1555 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1da177e4
LT		 1556 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1557 ipr_err(" Serial Number: %s\n", buffer);
1558}
1559
8cf093e2
BK		 1560/**
1561 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1562 * @prefix: string to print at start of printk
1563 * @hostrcb: hostrcb pointer
1564 * @vpd: vendor/product id/sn/wwn struct
1565 *
1566 * Return value:
1567 * none
1568 **/
1569static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1570 struct ipr_ext_vpd *vpd)
1571{
1572 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1573 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1574 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1575}
1576
ee0f05b8
BK		 1577/**
1578 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1579 * @vpd: vendor/product id/sn/wwn struct
1580 *
1581 * Return value:
1582 * none
1583 **/
1584static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1585{
1586 ipr_log_vpd(&vpd->vpd);
1587 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1588 be32_to_cpu(vpd->wwid[1]));
1589}
1590
1591/**
1592 * ipr_log_enhanced_cache_error - Log a cache error.
1593 * @ioa_cfg: ioa config struct
1594 * @hostrcb: hostrcb struct
1595 *
1596 * Return value:
1597 * none
1598 **/
1599static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1600 struct ipr_hostrcb *hostrcb)
1601{
4565e370
WB		 1602 struct ipr_hostrcb_type_12_error *error;
1603
1604 if (ioa_cfg->sis64)
1605 error = &hostrcb->hcam.u.error64.u.type_12_error;
1606 else
1607 error = &hostrcb->hcam.u.error.u.type_12_error;
ee0f05b8
BK		 1608
1609 ipr_err("-----Current Configuration-----\n");
1610 ipr_err("Cache Directory Card Information:\n");
1611 ipr_log_ext_vpd(&error->ioa_vpd);
1612 ipr_err("Adapter Card Information:\n");
1613 ipr_log_ext_vpd(&error->cfc_vpd);
1614
1615 ipr_err("-----Expected Configuration-----\n");
1616 ipr_err("Cache Directory Card Information:\n");
1617 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1618 ipr_err("Adapter Card Information:\n");
1619 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1620
1621 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1622 be32_to_cpu(error->ioa_data[0]),
1623 be32_to_cpu(error->ioa_data[1]),
1624 be32_to_cpu(error->ioa_data[2]));
1625}
1626
1da177e4
LT		 1627/**
1628 * ipr_log_cache_error - Log a cache error.
1629 * @ioa_cfg: ioa config struct
1630 * @hostrcb: hostrcb struct
1631 *
1632 * Return value:
1633 * none
1634 **/
1635static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1636 struct ipr_hostrcb *hostrcb)
1637{
1638 struct ipr_hostrcb_type_02_error *error =
1639 &hostrcb->hcam.u.error.u.type_02_error;
1640
1641 ipr_err("-----Current Configuration-----\n");
1642 ipr_err("Cache Directory Card Information:\n");
cfc32139 1643 ipr_log_vpd(&error->ioa_vpd);
1da177e4 1644 ipr_err("Adapter Card Information:\n");
cfc32139 1645 ipr_log_vpd(&error->cfc_vpd);
1da177e4
LT		 1646
1647 ipr_err("-----Expected Configuration-----\n");
1648 ipr_err("Cache Directory Card Information:\n");
cfc32139 1649 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1da177e4 1650 ipr_err("Adapter Card Information:\n");
cfc32139 1651 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1da177e4
LT		 1652
1653 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1654 be32_to_cpu(error->ioa_data[0]),
1655 be32_to_cpu(error->ioa_data[1]),
1656 be32_to_cpu(error->ioa_data[2]));
1657}
1658
ee0f05b8
BK		 1659/**
1660 * ipr_log_enhanced_config_error - Log a configuration error.
1661 * @ioa_cfg: ioa config struct
1662 * @hostrcb: hostrcb struct
1663 *
1664 * Return value:
1665 * none
1666 **/
1667static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1668 struct ipr_hostrcb *hostrcb)
1669{
1670 int errors_logged, i;
1671 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1672 struct ipr_hostrcb_type_13_error *error;
1673
1674 error = &hostrcb->hcam.u.error.u.type_13_error;
1675 errors_logged = be32_to_cpu(error->errors_logged);
1676
1677 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1678 be32_to_cpu(error->errors_detected), errors_logged);
1679
1680 dev_entry = error->dev;
1681
1682 for (i = 0; i < errors_logged; i++, dev_entry++) {
1683 ipr_err_separator;
1684
1685 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1686 ipr_log_ext_vpd(&dev_entry->vpd);
1687
1688 ipr_err("-----New Device Information-----\n");
1689 ipr_log_ext_vpd(&dev_entry->new_vpd);
1690
1691 ipr_err("Cache Directory Card Information:\n");
1692 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1693
1694 ipr_err("Adapter Card Information:\n");
1695 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1696 }
1697}
1698
4565e370
WB		 1699/**
1700 * ipr_log_sis64_config_error - Log a device error.
1701 * @ioa_cfg: ioa config struct
1702 * @hostrcb: hostrcb struct
1703 *
1704 * Return value:
1705 * none
1706 **/
1707static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1708 struct ipr_hostrcb *hostrcb)
1709{
1710 int errors_logged, i;
1711 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1712 struct ipr_hostrcb_type_23_error *error;
1713 char buffer[IPR_MAX_RES_PATH_LENGTH];
1714
1715 error = &hostrcb->hcam.u.error64.u.type_23_error;
1716 errors_logged = be32_to_cpu(error->errors_logged);
1717
1718 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1719 be32_to_cpu(error->errors_detected), errors_logged);
1720
1721 dev_entry = error->dev;
1722
1723 for (i = 0; i < errors_logged; i++, dev_entry++) {
1724 ipr_err_separator;
1725
1726 ipr_err("Device %d : %s", i + 1,
b3b3b407
BK		 1727 __ipr_format_res_path(dev_entry->res_path,
1728 buffer, sizeof(buffer)));
4565e370
WB		 1729 ipr_log_ext_vpd(&dev_entry->vpd);
1730
1731 ipr_err("-----New Device Information-----\n");
1732 ipr_log_ext_vpd(&dev_entry->new_vpd);
1733
1734 ipr_err("Cache Directory Card Information:\n");
1735 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1736
1737 ipr_err("Adapter Card Information:\n");
1738 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1739 }
1740}
1741
1da177e4
LT		 1742/**
1743 * ipr_log_config_error - Log a configuration error.
1744 * @ioa_cfg: ioa config struct
1745 * @hostrcb: hostrcb struct
1746 *
1747 * Return value:
1748 * none
1749 **/
1750static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1751 struct ipr_hostrcb *hostrcb)
1752{
1753 int errors_logged, i;
1754 struct ipr_hostrcb_device_data_entry *dev_entry;
1755 struct ipr_hostrcb_type_03_error *error;
1756
1757 error = &hostrcb->hcam.u.error.u.type_03_error;
1758 errors_logged = be32_to_cpu(error->errors_logged);
1759
1760 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1761 be32_to_cpu(error->errors_detected), errors_logged);
1762
cfc32139 1763 dev_entry = error->dev;
1da177e4
LT		 1764
1765 for (i = 0; i < errors_logged; i++, dev_entry++) {
1766 ipr_err_separator;
1767
fa15b1f6 1768 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
cfc32139 1769 ipr_log_vpd(&dev_entry->vpd);
1da177e4
LT		 1770
1771 ipr_err("-----New Device Information-----\n");
cfc32139 1772 ipr_log_vpd(&dev_entry->new_vpd);
1da177e4
LT		 1773
1774 ipr_err("Cache Directory Card Information:\n");
cfc32139 1775 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1da177e4
LT		 1776
1777 ipr_err("Adapter Card Information:\n");
cfc32139 1778 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1da177e4
LT		 1779
1780 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1781 be32_to_cpu(dev_entry->ioa_data[0]),
1782 be32_to_cpu(dev_entry->ioa_data[1]),
1783 be32_to_cpu(dev_entry->ioa_data[2]),
1784 be32_to_cpu(dev_entry->ioa_data[3]),
1785 be32_to_cpu(dev_entry->ioa_data[4]));
1786 }
1787}
1788
ee0f05b8
BK		 1789/**
1790 * ipr_log_enhanced_array_error - Log an array configuration error.
1791 * @ioa_cfg: ioa config struct
1792 * @hostrcb: hostrcb struct
1793 *
1794 * Return value:
1795 * none
1796 **/
1797static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1798 struct ipr_hostrcb *hostrcb)
1799{
1800 int i, num_entries;
1801 struct ipr_hostrcb_type_14_error *error;
1802 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1803 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1804
1805 error = &hostrcb->hcam.u.error.u.type_14_error;
1806
1807 ipr_err_separator;
1808
1809 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1810 error->protection_level,
1811 ioa_cfg->host->host_no,
1812 error->last_func_vset_res_addr.bus,
1813 error->last_func_vset_res_addr.target,
1814 error->last_func_vset_res_addr.lun);
1815
1816 ipr_err_separator;
1817
1818 array_entry = error->array_member;
1819 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
7262026f 1820 ARRAY_SIZE(error->array_member));
ee0f05b8
BK		 1821
1822 for (i = 0; i < num_entries; i++, array_entry++) {
1823 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1824 continue;
1825
1826 if (be32_to_cpu(error->exposed_mode_adn) == i)
1827 ipr_err("Exposed Array Member %d:\n", i);
1828 else
1829 ipr_err("Array Member %d:\n", i);
1830
1831 ipr_log_ext_vpd(&array_entry->vpd);
1832 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1833 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1834 "Expected Location");
1835
1836 ipr_err_separator;
1837 }
1838}
1839
1da177e4
LT		 1840/**
1841 * ipr_log_array_error - Log an array configuration error.
1842 * @ioa_cfg: ioa config struct
1843 * @hostrcb: hostrcb struct
1844 *
1845 * Return value:
1846 * none
1847 **/
1848static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1849 struct ipr_hostrcb *hostrcb)
1850{
1851 int i;
1852 struct ipr_hostrcb_type_04_error *error;
1853 struct ipr_hostrcb_array_data_entry *array_entry;
1854 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1855
1856 error = &hostrcb->hcam.u.error.u.type_04_error;
1857
1858 ipr_err_separator;
1859
1860 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1861 error->protection_level,
1862 ioa_cfg->host->host_no,
1863 error->last_func_vset_res_addr.bus,
1864 error->last_func_vset_res_addr.target,
1865 error->last_func_vset_res_addr.lun);
1866
1867 ipr_err_separator;
1868
1869 array_entry = error->array_member;
1870
1871 for (i = 0; i < 18; i++) {
cfc32139 1872 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1da177e4
LT		 1873 continue;
1874
fa15b1f6 1875 if (be32_to_cpu(error->exposed_mode_adn) == i)
1da177e4 1876 ipr_err("Exposed Array Member %d:\n", i);
fa15b1f6 1877 else
1da177e4 1878 ipr_err("Array Member %d:\n", i);
1da177e4 1879
cfc32139 1880 ipr_log_vpd(&array_entry->vpd);
1da177e4 1881
fa15b1f6
BK		 1882 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1883 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1884 "Expected Location");
1da177e4
LT		 1885
1886 ipr_err_separator;
1887
1888 if (i == 9)
1889 array_entry = error->array_member2;
1890 else
1891 array_entry++;
1892 }
1893}
1894
1895/**
b0df54bb 1896 * ipr_log_hex_data - Log additional hex IOA error data.
ac719aba 1897 * @ioa_cfg: ioa config struct
b0df54bb
BK		 1898 * @data: IOA error data
1899 * @len: data length
1da177e4
LT		 1900 *
1901 * Return value:
1902 * none
1903 **/
359d96e7 1904static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, __be32 *data, int len)
1da177e4
LT		 1905{
1906 int i;
1da177e4 1907
b0df54bb 1908 if (len == 0)
1da177e4
LT		 1909 return;
1910
ac719aba
BK		 1911 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1912 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1913
b0df54bb 1914 for (i = 0; i < len / 4; i += 4) {
1da177e4 1915 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
b0df54bb
BK		 1916 be32_to_cpu(data[i]),
1917 be32_to_cpu(data[i+1]),
1918 be32_to_cpu(data[i+2]),
1919 be32_to_cpu(data[i+3]));
1da177e4
LT		 1920 }
1921}
1922
ee0f05b8
BK		 1923/**
1924 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1925 * @ioa_cfg: ioa config struct
1926 * @hostrcb: hostrcb struct
1927 *
1928 * Return value:
1929 * none
1930 **/
1931static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1932 struct ipr_hostrcb *hostrcb)
1933{
1934 struct ipr_hostrcb_type_17_error *error;
1935
4565e370
WB		 1936 if (ioa_cfg->sis64)
1937 error = &hostrcb->hcam.u.error64.u.type_17_error;
1938 else
1939 error = &hostrcb->hcam.u.error.u.type_17_error;
1940
ee0f05b8 1941 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1942 strim(error->failure_reason);
ee0f05b8 1943
8cf093e2
BK		 1944 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1945 be32_to_cpu(hostrcb->hcam.u.error.prc));
1946 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1947 ipr_log_hex_data(ioa_cfg, error->data,
ee0f05b8
BK		 1948 be32_to_cpu(hostrcb->hcam.length) -
1949 (offsetof(struct ipr_hostrcb_error, u) +
1950 offsetof(struct ipr_hostrcb_type_17_error, data)));
1951}
1952
b0df54bb
BK		 1953/**
1954 * ipr_log_dual_ioa_error - Log a dual adapter error.
1955 * @ioa_cfg: ioa config struct
1956 * @hostrcb: hostrcb struct
1957 *
1958 * Return value:
1959 * none
1960 **/
1961static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1962 struct ipr_hostrcb *hostrcb)
1963{
1964 struct ipr_hostrcb_type_07_error *error;
1965
1966 error = &hostrcb->hcam.u.error.u.type_07_error;
1967 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1968 strim(error->failure_reason);
b0df54bb 1969
8cf093e2
BK		 1970 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1971 be32_to_cpu(hostrcb->hcam.u.error.prc));
1972 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1973 ipr_log_hex_data(ioa_cfg, error->data,
b0df54bb
BK		 1974 be32_to_cpu(hostrcb->hcam.length) -
1975 (offsetof(struct ipr_hostrcb_error, u) +
1976 offsetof(struct ipr_hostrcb_type_07_error, data)));
1977}
1978
49dc6a18
BK		 1979static const struct {
1980 u8 active;
1981 char *desc;
1982} path_active_desc[] = {
1983 { IPR_PATH_NO_INFO, "Path" },
1984 { IPR_PATH_ACTIVE, "Active path" },
1985 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1986};
1987
1988static const struct {
1989 u8 state;
1990 char *desc;
1991} path_state_desc[] = {
1992 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1993 { IPR_PATH_HEALTHY, "is healthy" },
1994 { IPR_PATH_DEGRADED, "is degraded" },
1995 { IPR_PATH_FAILED, "is failed" }
1996};
1997
1998/**
1999 * ipr_log_fabric_path - Log a fabric path error
2000 * @hostrcb: hostrcb struct
2001 * @fabric: fabric descriptor
2002 *
2003 * Return value:
2004 * none
2005 **/
2006static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
2007 struct ipr_hostrcb_fabric_desc *fabric)
2008{
2009 int i, j;
2010 u8 path_state = fabric->path_state;
2011 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2012 u8 state = path_state & IPR_PATH_STATE_MASK;
2013
2014 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2015 if (path_active_desc[i].active != active)
2016 continue;
2017
2018 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2019 if (path_state_desc[j].state != state)
2020 continue;
2021
2022 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
2023 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
2024 path_active_desc[i].desc, path_state_desc[j].desc,
2025 fabric->ioa_port);
2026 } else if (fabric->cascaded_expander == 0xff) {
2027 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
2028 path_active_desc[i].desc, path_state_desc[j].desc,
2029 fabric->ioa_port, fabric->phy);
2030 } else if (fabric->phy == 0xff) {
2031 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
2032 path_active_desc[i].desc, path_state_desc[j].desc,
2033 fabric->ioa_port, fabric->cascaded_expander);
2034 } else {
2035 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
2036 path_active_desc[i].desc, path_state_desc[j].desc,
2037 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2038 }
2039 return;
2040 }
2041 }
2042
2043 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
2044 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2045}
2046
4565e370
WB		 2047/**
2048 * ipr_log64_fabric_path - Log a fabric path error
2049 * @hostrcb: hostrcb struct
2050 * @fabric: fabric descriptor
2051 *
2052 * Return value:
2053 * none
2054 **/
2055static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
2056 struct ipr_hostrcb64_fabric_desc *fabric)
2057{
2058 int i, j;
2059 u8 path_state = fabric->path_state;
2060 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2061 u8 state = path_state & IPR_PATH_STATE_MASK;
2062 char buffer[IPR_MAX_RES_PATH_LENGTH];
2063
2064 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2065 if (path_active_desc[i].active != active)
2066 continue;
2067
2068 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2069 if (path_state_desc[j].state != state)
2070 continue;
2071
2072 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
2073 path_active_desc[i].desc, path_state_desc[j].desc,
b3b3b407
BK		 2074 ipr_format_res_path(hostrcb->ioa_cfg,
2075 fabric->res_path,
2076 buffer, sizeof(buffer)));
4565e370
WB		 2077 return;
2078 }
2079 }
2080
2081 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
b3b3b407
BK		 2082 ipr_format_res_path(hostrcb->ioa_cfg, fabric->res_path,
2083 buffer, sizeof(buffer)));
4565e370
WB		 2084}
2085
49dc6a18
BK		 2086static const struct {
2087 u8 type;
2088 char *desc;
2089} path_type_desc[] = {
2090 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
2091 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
2092 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
2093 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
2094};
2095
2096static const struct {
2097 u8 status;
2098 char *desc;
2099} path_status_desc[] = {
2100 { IPR_PATH_CFG_NO_PROB, "Functional" },
2101 { IPR_PATH_CFG_DEGRADED, "Degraded" },
2102 { IPR_PATH_CFG_FAILED, "Failed" },
2103 { IPR_PATH_CFG_SUSPECT, "Suspect" },
2104 { IPR_PATH_NOT_DETECTED, "Missing" },
2105 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
2106};
2107
2108static const char *link_rate[] = {
2109 "unknown",
2110 "disabled",
2111 "phy reset problem",
2112 "spinup hold",
2113 "port selector",
2114 "unknown",
2115 "unknown",
2116 "unknown",
2117 "1.5Gbps",
2118 "3.0Gbps",
2119 "unknown",
2120 "unknown",
2121 "unknown",
2122 "unknown",
2123 "unknown",
2124 "unknown"
2125};
2126
2127/**
2128 * ipr_log_path_elem - Log a fabric path element.
2129 * @hostrcb: hostrcb struct
2130 * @cfg: fabric path element struct
2131 *
2132 * Return value:
2133 * none
2134 **/
2135static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
2136 struct ipr_hostrcb_config_element *cfg)
2137{
2138 int i, j;
2139 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2140 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2141
2142 if (type == IPR_PATH_CFG_NOT_EXIST)
2143 return;
2144
2145 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2146 if (path_type_desc[i].type != type)
2147 continue;
2148
2149 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2150 if (path_status_desc[j].status != status)
2151 continue;
2152
2153 if (type == IPR_PATH_CFG_IOA_PORT) {
2154 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2155 path_status_desc[j].desc, path_type_desc[i].desc,
2156 cfg->phy, 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 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2160 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2161 path_status_desc[j].desc, path_type_desc[i].desc,
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 } else if (cfg->cascaded_expander == 0xff) {
2165 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2166 "WWN=%08X%08X\n", path_status_desc[j].desc,
2167 path_type_desc[i].desc, cfg->phy,
2168 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2169 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2170 } else if (cfg->phy == 0xff) {
2171 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2172 "WWN=%08X%08X\n", path_status_desc[j].desc,
2173 path_type_desc[i].desc, cfg->cascaded_expander,
2174 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2175 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2176 } else {
2177 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2178 "WWN=%08X%08X\n", path_status_desc[j].desc,
2179 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2180 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2181 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2182 }
2183 }
2184 return;
2185 }
2186 }
2187
2188 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2189 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2190 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2191 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2192}
2193
4565e370
WB		 2194/**
2195 * ipr_log64_path_elem - Log a fabric path element.
2196 * @hostrcb: hostrcb struct
2197 * @cfg: fabric path element struct
2198 *
2199 * Return value:
2200 * none
2201 **/
2202static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2203 struct ipr_hostrcb64_config_element *cfg)
2204{
2205 int i, j;
2206 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2207 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2208 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2209 char buffer[IPR_MAX_RES_PATH_LENGTH];
2210
2211 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2212 return;
2213
2214 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2215 if (path_type_desc[i].type != type)
2216 continue;
2217
2218 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2219 if (path_status_desc[j].status != status)
2220 continue;
2221
2222 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2223 path_status_desc[j].desc, path_type_desc[i].desc,
b3b3b407
BK		 2224 ipr_format_res_path(hostrcb->ioa_cfg,
2225 cfg->res_path, buffer, sizeof(buffer)),
2226 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2227 be32_to_cpu(cfg->wwid[0]),
2228 be32_to_cpu(cfg->wwid[1]));
4565e370
WB		 2229 return;
2230 }
2231 }
2232 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2233 "WWN=%08X%08X\n", cfg->type_status,
b3b3b407
BK		 2234 ipr_format_res_path(hostrcb->ioa_cfg,
2235 cfg->res_path, buffer, sizeof(buffer)),
2236 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2237 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
4565e370
WB		 2238}
2239
49dc6a18
BK		 2240/**
2241 * ipr_log_fabric_error - Log a fabric error.
2242 * @ioa_cfg: ioa config struct
2243 * @hostrcb: hostrcb struct
2244 *
2245 * Return value:
2246 * none
2247 **/
2248static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2249 struct ipr_hostrcb *hostrcb)
2250{
2251 struct ipr_hostrcb_type_20_error *error;
2252 struct ipr_hostrcb_fabric_desc *fabric;
2253 struct ipr_hostrcb_config_element *cfg;
2254 int i, add_len;
2255
2256 error = &hostrcb->hcam.u.error.u.type_20_error;
2257 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2258 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2259
2260 add_len = be32_to_cpu(hostrcb->hcam.length) -
2261 (offsetof(struct ipr_hostrcb_error, u) +
2262 offsetof(struct ipr_hostrcb_type_20_error, desc));
2263
2264 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2265 ipr_log_fabric_path(hostrcb, fabric);
2266 for_each_fabric_cfg(fabric, cfg)
2267 ipr_log_path_elem(hostrcb, cfg);
2268
2269 add_len -= be16_to_cpu(fabric->length);
2270 fabric = (struct ipr_hostrcb_fabric_desc *)
2271 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2272 }
2273
359d96e7 2274 ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
49dc6a18
BK		 2275}
2276
4565e370
WB		 2277/**
2278 * ipr_log_sis64_array_error - Log a sis64 array error.
2279 * @ioa_cfg: ioa config struct
2280 * @hostrcb: hostrcb struct
2281 *
2282 * Return value:
2283 * none
2284 **/
2285static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2286 struct ipr_hostrcb *hostrcb)
2287{
2288 int i, num_entries;
2289 struct ipr_hostrcb_type_24_error *error;
2290 struct ipr_hostrcb64_array_data_entry *array_entry;
2291 char buffer[IPR_MAX_RES_PATH_LENGTH];
2292 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2293
2294 error = &hostrcb->hcam.u.error64.u.type_24_error;
2295
2296 ipr_err_separator;
2297
2298 ipr_err("RAID %s Array Configuration: %s\n",
2299 error->protection_level,
b3b3b407
BK		 2300 ipr_format_res_path(ioa_cfg, error->last_res_path,
2301 buffer, sizeof(buffer)));
4565e370
WB		 2302
2303 ipr_err_separator;
2304
2305 array_entry = error->array_member;
7262026f
WB		 2306 num_entries = min_t(u32, error->num_entries,
2307 ARRAY_SIZE(error->array_member));
4565e370
WB		 2308
2309 for (i = 0; i < num_entries; i++, array_entry++) {
2310
2311 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2312 continue;
2313
2314 if (error->exposed_mode_adn == i)
2315 ipr_err("Exposed Array Member %d:\n", i);
2316 else
2317 ipr_err("Array Member %d:\n", i);
2318
2319 ipr_err("Array Member %d:\n", i);
2320 ipr_log_ext_vpd(&array_entry->vpd);
7262026f 2321 ipr_err("Current Location: %s\n",
b3b3b407
BK		 2322 ipr_format_res_path(ioa_cfg, array_entry->res_path,
2323 buffer, sizeof(buffer)));
7262026f 2324 ipr_err("Expected Location: %s\n",
b3b3b407
BK		 2325 ipr_format_res_path(ioa_cfg,
2326 array_entry->expected_res_path,
2327 buffer, sizeof(buffer)));
4565e370
WB		 2328
2329 ipr_err_separator;
2330 }
2331}
2332
2333/**
2334 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2335 * @ioa_cfg: ioa config struct
2336 * @hostrcb: hostrcb struct
2337 *
2338 * Return value:
2339 * none
2340 **/
2341static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2342 struct ipr_hostrcb *hostrcb)
2343{
2344 struct ipr_hostrcb_type_30_error *error;
2345 struct ipr_hostrcb64_fabric_desc *fabric;
2346 struct ipr_hostrcb64_config_element *cfg;
2347 int i, add_len;
2348
2349 error = &hostrcb->hcam.u.error64.u.type_30_error;
2350
2351 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2352 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2353
2354 add_len = be32_to_cpu(hostrcb->hcam.length) -
2355 (offsetof(struct ipr_hostrcb64_error, u) +
2356 offsetof(struct ipr_hostrcb_type_30_error, desc));
2357
2358 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2359 ipr_log64_fabric_path(hostrcb, fabric);
2360 for_each_fabric_cfg(fabric, cfg)
2361 ipr_log64_path_elem(hostrcb, cfg);
2362
2363 add_len -= be16_to_cpu(fabric->length);
2364 fabric = (struct ipr_hostrcb64_fabric_desc *)
2365 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2366 }
2367
359d96e7 2368 ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
4565e370
WB		 2369}
2370
b0df54bb
BK		 2371/**
2372 * ipr_log_generic_error - Log an adapter error.
2373 * @ioa_cfg: ioa config struct
2374 * @hostrcb: hostrcb struct
2375 *
2376 * Return value:
2377 * none
2378 **/
2379static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2380 struct ipr_hostrcb *hostrcb)
2381{
ac719aba 2382 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
b0df54bb
BK		 2383 be32_to_cpu(hostrcb->hcam.length));
2384}
2385
169b9ec8
WX		 2386/**
2387 * ipr_log_sis64_device_error - Log a cache error.
2388 * @ioa_cfg: ioa config struct
2389 * @hostrcb: hostrcb struct
2390 *
2391 * Return value:
2392 * none
2393 **/
2394static void ipr_log_sis64_device_error(struct ipr_ioa_cfg *ioa_cfg,
2395 struct ipr_hostrcb *hostrcb)
2396{
2397 struct ipr_hostrcb_type_21_error *error;
2398 char buffer[IPR_MAX_RES_PATH_LENGTH];
2399
2400 error = &hostrcb->hcam.u.error64.u.type_21_error;
2401
2402 ipr_err("-----Failing Device Information-----\n");
2403 ipr_err("World Wide Unique ID: %08X%08X%08X%08X\n",
2404 be32_to_cpu(error->wwn[0]), be32_to_cpu(error->wwn[1]),
2405 be32_to_cpu(error->wwn[2]), be32_to_cpu(error->wwn[3]));
2406 ipr_err("Device Resource Path: %s\n",
2407 __ipr_format_res_path(error->res_path,
2408 buffer, sizeof(buffer)));
2409 error->primary_problem_desc[sizeof(error->primary_problem_desc) - 1] = '\0';
2410 error->second_problem_desc[sizeof(error->second_problem_desc) - 1] = '\0';
2411 ipr_err("Primary Problem Description: %s\n", error->primary_problem_desc);
2412 ipr_err("Secondary Problem Description: %s\n", error->second_problem_desc);
2413 ipr_err("SCSI Sense Data:\n");
2414 ipr_log_hex_data(ioa_cfg, error->sense_data, sizeof(error->sense_data));
2415 ipr_err("SCSI Command Descriptor Block: \n");
2416 ipr_log_hex_data(ioa_cfg, error->cdb, sizeof(error->cdb));
2417
2418 ipr_err("Additional IOA Data:\n");
2419 ipr_log_hex_data(ioa_cfg, error->ioa_data, be32_to_cpu(error->length_of_error));
2420}
2421
1da177e4
LT		 2422/**
2423 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2424 * @ioasc: IOASC
2425 *
2426 * This function will return the index of into the ipr_error_table
2427 * for the specified IOASC. If the IOASC is not in the table,
2428 * 0 will be returned, which points to the entry used for unknown errors.
2429 *
2430 * Return value:
2431 * index into the ipr_error_table
2432 **/
2433static u32 ipr_get_error(u32 ioasc)
2434{
2435 int i;
2436
2437 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
35a39691 2438 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
1da177e4
LT		 2439 return i;
2440
2441 return 0;
2442}
2443
2444/**
2445 * ipr_handle_log_data - Log an adapter error.
2446 * @ioa_cfg: ioa config struct
2447 * @hostrcb: hostrcb struct
2448 *
2449 * This function logs an adapter error to the system.
2450 *
2451 * Return value:
2452 * none
2453 **/
2454static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2455 struct ipr_hostrcb *hostrcb)
2456{
2457 u32 ioasc;
2458 int error_index;
3185ea63 2459 struct ipr_hostrcb_type_21_error *error;
1da177e4
LT		 2460
2461 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2462 return;
2463
2464 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2465 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2466
4565e370
WB		 2467 if (ioa_cfg->sis64)
2468 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2469 else
2470 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4 2471
4565e370
WB		 2472 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2473 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
1da177e4
LT		 2474 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2475 scsi_report_bus_reset(ioa_cfg->host,
4565e370 2476 hostrcb->hcam.u.error.fd_res_addr.bus);
1da177e4
LT		 2477 }
2478
2479 error_index = ipr_get_error(ioasc);
2480
2481 if (!ipr_error_table[error_index].log_hcam)
2482 return;
2483
3185ea63 2484 if (ioasc == IPR_IOASC_HW_CMD_FAILED &&
2485 hostrcb->hcam.overlay_id == IPR_HOST_RCB_OVERLAY_ID_21) {
2486 error = &hostrcb->hcam.u.error64.u.type_21_error;
2487
2488 if (((be32_to_cpu(error->sense_data[0]) & 0x0000ff00) >> 8) == ILLEGAL_REQUEST &&
2489 ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
2490 return;
2491 }
2492
49dc6a18 2493 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
1da177e4
LT		 2494
2495 /* Set indication we have logged an error */
2496 ioa_cfg->errors_logged++;
2497
933916f3 2498 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
1da177e4 2499 return;
cf852037
BK		 2500 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2501 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
1da177e4
LT		 2502
2503 switch (hostrcb->hcam.overlay_id) {
1da177e4
LT		 2504 case IPR_HOST_RCB_OVERLAY_ID_2:
2505 ipr_log_cache_error(ioa_cfg, hostrcb);
2506 break;
2507 case IPR_HOST_RCB_OVERLAY_ID_3:
2508 ipr_log_config_error(ioa_cfg, hostrcb);
2509 break;
2510 case IPR_HOST_RCB_OVERLAY_ID_4:
2511 case IPR_HOST_RCB_OVERLAY_ID_6:
2512 ipr_log_array_error(ioa_cfg, hostrcb);
2513 break;
b0df54bb
BK		 2514 case IPR_HOST_RCB_OVERLAY_ID_7:
2515 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2516 break;
ee0f05b8
BK		 2517 case IPR_HOST_RCB_OVERLAY_ID_12:
2518 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2519 break;
2520 case IPR_HOST_RCB_OVERLAY_ID_13:
2521 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2522 break;
2523 case IPR_HOST_RCB_OVERLAY_ID_14:
2524 case IPR_HOST_RCB_OVERLAY_ID_16:
2525 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2526 break;
2527 case IPR_HOST_RCB_OVERLAY_ID_17:
2528 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2529 break;
49dc6a18
BK		 2530 case IPR_HOST_RCB_OVERLAY_ID_20:
2531 ipr_log_fabric_error(ioa_cfg, hostrcb);
2532 break;
169b9ec8
WX		 2533 case IPR_HOST_RCB_OVERLAY_ID_21:
2534 ipr_log_sis64_device_error(ioa_cfg, hostrcb);
2535 break;
4565e370
WB		 2536 case IPR_HOST_RCB_OVERLAY_ID_23:
2537 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2538 break;
2539 case IPR_HOST_RCB_OVERLAY_ID_24:
2540 case IPR_HOST_RCB_OVERLAY_ID_26:
2541 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2542 break;
2543 case IPR_HOST_RCB_OVERLAY_ID_30:
2544 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2545 break;
cf852037 2546 case IPR_HOST_RCB_OVERLAY_ID_1:
1da177e4 2547 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
1da177e4 2548 default:
a9cfca96 2549 ipr_log_generic_error(ioa_cfg, hostrcb);
1da177e4
LT		 2550 break;
2551 }
2552}
2553
2554/**
2555 * ipr_process_error - Op done function for an adapter error log.
2556 * @ipr_cmd: ipr command struct
2557 *
2558 * This function is the op done function for an error log host
2559 * controlled async from the adapter. It will log the error and
2560 * send the HCAM back to the adapter.
2561 *
2562 * Return value:
2563 * none
2564 **/
2565static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2566{
2567 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2568 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 2569 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4565e370
WB		 2570 u32 fd_ioasc;
2571
2572 if (ioa_cfg->sis64)
2573 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2574 else
2575 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4
LT		 2576
2577 list_del(&hostrcb->queue);
05a6538a 2578 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 2579
2580 if (!ioasc) {
2581 ipr_handle_log_data(ioa_cfg, hostrcb);
65f56475
BK		 2582 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2583 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4fdd7c7a
BK		 2584 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET &&
2585 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST) {
1da177e4
LT		 2586 dev_err(&ioa_cfg->pdev->dev,
2587 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2588 }
2589
2590 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2591}
2592
2593/**
2594 * ipr_timeout - An internally generated op has timed out.
2595 * @ipr_cmd: ipr command struct
2596 *
2597 * This function blocks host requests and initiates an
2598 * adapter reset.
2599 *
2600 * Return value:
2601 * none
2602 **/
2603static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2604{
2605 unsigned long lock_flags = 0;
2606 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2607
2608 ENTER;
2609 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2610
2611 ioa_cfg->errors_logged++;
2612 dev_err(&ioa_cfg->pdev->dev,
2613 "Adapter being reset due to command timeout.\n");
2614
2615 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2616 ioa_cfg->sdt_state = GET_DUMP;
2617
2618 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2619 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2620
2621 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2622 LEAVE;
2623}
2624
2625/**
2626 * ipr_oper_timeout - Adapter timed out transitioning to operational
2627 * @ipr_cmd: ipr command struct
2628 *
2629 * This function blocks host requests and initiates an
2630 * adapter reset.
2631 *
2632 * Return value:
2633 * none
2634 **/
2635static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2636{
2637 unsigned long lock_flags = 0;
2638 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2639
2640 ENTER;
2641 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2642
2643 ioa_cfg->errors_logged++;
2644 dev_err(&ioa_cfg->pdev->dev,
2645 "Adapter timed out transitioning to operational.\n");
2646
2647 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2648 ioa_cfg->sdt_state = GET_DUMP;
2649
2650 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2651 if (ipr_fastfail)
2652 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2653 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2654 }
2655
2656 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2657 LEAVE;
2658}
2659
1da177e4
LT		 2660/**
2661 * ipr_find_ses_entry - Find matching SES in SES table
2662 * @res: resource entry struct of SES
2663 *
2664 * Return value:
2665 * pointer to SES table entry / NULL on failure
2666 **/
2667static const struct ipr_ses_table_entry *
2668ipr_find_ses_entry(struct ipr_resource_entry *res)
2669{
2670 int i, j, matches;
3e7ebdfa 2671 struct ipr_std_inq_vpids *vpids;
1da177e4
LT		 2672 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2673
2674 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2675 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2676 if (ste->compare_product_id_byte[j] == 'X') {
3e7ebdfa
WB		 2677 vpids = &res->std_inq_data.vpids;
2678 if (vpids->product_id[j] == ste->product_id[j])
1da177e4
LT		 2679 matches++;
2680 else
2681 break;
2682 } else
2683 matches++;
2684 }
2685
2686 if (matches == IPR_PROD_ID_LEN)
2687 return ste;
2688 }
2689
2690 return NULL;
2691}
2692
2693/**
2694 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2695 * @ioa_cfg: ioa config struct
2696 * @bus: SCSI bus
2697 * @bus_width: bus width
2698 *
2699 * Return value:
2700 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2701 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2702 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2703 * max 160MHz = max 320MB/sec).
2704 **/
2705static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2706{
2707 struct ipr_resource_entry *res;
2708 const struct ipr_ses_table_entry *ste;
2709 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2710
2711 /* Loop through each config table entry in the config table buffer */
2712 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 2713 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
1da177e4
LT		 2714 continue;
2715
3e7ebdfa 2716 if (bus != res->bus)
1da177e4
LT		 2717 continue;
2718
2719 if (!(ste = ipr_find_ses_entry(res)))
2720 continue;
2721
2722 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2723 }
2724
2725 return max_xfer_rate;
2726}
2727
2728/**
2729 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2730 * @ioa_cfg: ioa config struct
2731 * @max_delay: max delay in micro-seconds to wait
2732 *
2733 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2734 *
2735 * Return value:
2736 * 0 on success / other on failure
2737 **/
2738static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2739{
2740 volatile u32 pcii_reg;
2741 int delay = 1;
2742
2743 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2744 while (delay < max_delay) {
2745 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2746
2747 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2748 return 0;
2749
2750 /* udelay cannot be used if delay is more than a few milliseconds */
2751 if ((delay / 1000) > MAX_UDELAY_MS)
2752 mdelay(delay / 1000);
2753 else
2754 udelay(delay);
2755
2756 delay += delay;
2757 }
2758 return -EIO;
2759}
2760
dcbad00e
WB		 2761/**
2762 * ipr_get_sis64_dump_data_section - Dump IOA memory
2763 * @ioa_cfg: ioa config struct
2764 * @start_addr: adapter address to dump
2765 * @dest: destination kernel buffer
2766 * @length_in_words: length to dump in 4 byte words
2767 *
2768 * Return value:
2769 * 0 on success
2770 **/
2771static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2772 u32 start_addr,
2773 __be32 *dest, u32 length_in_words)
2774{
2775 int i;
2776
2777 for (i = 0; i < length_in_words; i++) {
2778 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2779 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2780 dest++;
2781 }
2782
2783 return 0;
2784}
2785
1da177e4
LT		 2786/**
2787 * ipr_get_ldump_data_section - Dump IOA memory
2788 * @ioa_cfg: ioa config struct
2789 * @start_addr: adapter address to dump
2790 * @dest: destination kernel buffer
2791 * @length_in_words: length to dump in 4 byte words
2792 *
2793 * Return value:
2794 * 0 on success / -EIO on failure
2795 **/
2796static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2797 u32 start_addr,
2798 __be32 *dest, u32 length_in_words)
2799{
2800 volatile u32 temp_pcii_reg;
2801 int i, delay = 0;
2802
dcbad00e
WB		 2803 if (ioa_cfg->sis64)
2804 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2805 dest, length_in_words);
2806
1da177e4
LT		 2807 /* Write IOA interrupt reg starting LDUMP state */
2808 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
214777ba 2809 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2810
2811 /* Wait for IO debug acknowledge */
2812 if (ipr_wait_iodbg_ack(ioa_cfg,
2813 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2814 dev_err(&ioa_cfg->pdev->dev,
2815 "IOA dump long data transfer timeout\n");
2816 return -EIO;
2817 }
2818
2819 /* Signal LDUMP interlocked - clear IO debug ack */
2820 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2821 ioa_cfg->regs.clr_interrupt_reg);
2822
2823 /* Write Mailbox with starting address */
2824 writel(start_addr, ioa_cfg->ioa_mailbox);
2825
2826 /* Signal address valid - clear IOA Reset alert */
2827 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2828 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2829
2830 for (i = 0; i < length_in_words; i++) {
2831 /* Wait for IO debug acknowledge */
2832 if (ipr_wait_iodbg_ack(ioa_cfg,
2833 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2834 dev_err(&ioa_cfg->pdev->dev,
2835 "IOA dump short data transfer timeout\n");
2836 return -EIO;
2837 }
2838
2839 /* Read data from mailbox and increment destination pointer */
2840 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2841 dest++;
2842
2843 /* For all but the last word of data, signal data received */
2844 if (i < (length_in_words - 1)) {
2845 /* Signal dump data received - Clear IO debug Ack */
2846 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2847 ioa_cfg->regs.clr_interrupt_reg);
2848 }
2849 }
2850
2851 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2852 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2853 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2854
2855 writel(IPR_UPROCI_IO_DEBUG_ALERT,
214777ba 2856 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2857
2858 /* Signal dump data received - Clear IO debug Ack */
2859 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2860 ioa_cfg->regs.clr_interrupt_reg);
2861
2862 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2863 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2864 temp_pcii_reg =
214777ba 2865 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
1da177e4
LT		 2866
2867 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2868 return 0;
2869
2870 udelay(10);
2871 delay += 10;
2872 }
2873
2874 return 0;
2875}
2876
2877#ifdef CONFIG_SCSI_IPR_DUMP
2878/**
2879 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2880 * @ioa_cfg: ioa config struct
2881 * @pci_address: adapter address
2882 * @length: length of data to copy
2883 *
2884 * Copy data from PCI adapter to kernel buffer.
2885 * Note: length MUST be a 4 byte multiple
2886 * Return value:
2887 * 0 on success / other on failure
2888 **/
2889static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2890 unsigned long pci_address, u32 length)
2891{
2892 int bytes_copied = 0;
4d4dd706 2893 int cur_len, rc, rem_len, rem_page_len, max_dump_size;
1da177e4
LT		 2894 __be32 *page;
2895 unsigned long lock_flags = 0;
2896 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2897
4d4dd706
KSS		 2898 if (ioa_cfg->sis64)
2899 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2900 else
2901 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2902
1da177e4 2903 while (bytes_copied < length &&
4d4dd706 2904 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) {
1da177e4
LT		 2905 if (ioa_dump->page_offset >= PAGE_SIZE ||
2906 ioa_dump->page_offset == 0) {
2907 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2908
2909 if (!page) {
2910 ipr_trace;
2911 return bytes_copied;
2912 }
2913
2914 ioa_dump->page_offset = 0;
2915 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2916 ioa_dump->next_page_index++;
2917 } else
2918 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2919
2920 rem_len = length - bytes_copied;
2921 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2922 cur_len = min(rem_len, rem_page_len);
2923
2924 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2925 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2926 rc = -EIO;
2927 } else {
2928 rc = ipr_get_ldump_data_section(ioa_cfg,
2929 pci_address + bytes_copied,
2930 &page[ioa_dump->page_offset / 4],
2931 (cur_len / sizeof(u32)));
2932 }
2933 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2934
2935 if (!rc) {
2936 ioa_dump->page_offset += cur_len;
2937 bytes_copied += cur_len;
2938 } else {
2939 ipr_trace;
2940 break;
2941 }
2942 schedule();
2943 }
2944
2945 return bytes_copied;
2946}
2947
2948/**
2949 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2950 * @hdr: dump entry header struct
2951 *
2952 * Return value:
2953 * nothing
2954 **/
2955static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2956{
2957 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2958 hdr->num_elems = 1;
2959 hdr->offset = sizeof(*hdr);
2960 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2961}
2962
2963/**
2964 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2965 * @ioa_cfg: ioa config struct
2966 * @driver_dump: driver dump struct
2967 *
2968 * Return value:
2969 * nothing
2970 **/
2971static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2972 struct ipr_driver_dump *driver_dump)
2973{
2974 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2975
2976 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2977 driver_dump->ioa_type_entry.hdr.len =
2978 sizeof(struct ipr_dump_ioa_type_entry) -
2979 sizeof(struct ipr_dump_entry_header);
2980 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2981 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2982 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2983 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2984 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2985 ucode_vpd->minor_release[1];
2986 driver_dump->hdr.num_entries++;
2987}
2988
2989/**
2990 * ipr_dump_version_data - Fill in the driver version in the dump.
2991 * @ioa_cfg: ioa config struct
2992 * @driver_dump: driver dump struct
2993 *
2994 * Return value:
2995 * nothing
2996 **/
2997static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2998 struct ipr_driver_dump *driver_dump)
2999{
3000 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
3001 driver_dump->version_entry.hdr.len =
3002 sizeof(struct ipr_dump_version_entry) -
3003 sizeof(struct ipr_dump_entry_header);
3004 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3005 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
3006 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
3007 driver_dump->hdr.num_entries++;
3008}
3009
3010/**
3011 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
3012 * @ioa_cfg: ioa config struct
3013 * @driver_dump: driver dump struct
3014 *
3015 * Return value:
3016 * nothing
3017 **/
3018static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
3019 struct ipr_driver_dump *driver_dump)
3020{
3021 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
3022 driver_dump->trace_entry.hdr.len =
3023 sizeof(struct ipr_dump_trace_entry) -
3024 sizeof(struct ipr_dump_entry_header);
3025 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3026 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
3027 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
3028 driver_dump->hdr.num_entries++;
3029}
3030
3031/**
3032 * ipr_dump_location_data - Fill in the IOA location in the dump.
3033 * @ioa_cfg: ioa config struct
3034 * @driver_dump: driver dump struct
3035 *
3036 * Return value:
3037 * nothing
3038 **/
3039static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
3040 struct ipr_driver_dump *driver_dump)
3041{
3042 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
3043 driver_dump->location_entry.hdr.len =
3044 sizeof(struct ipr_dump_location_entry) -
3045 sizeof(struct ipr_dump_entry_header);
3046 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3047 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
71610f55 3048 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
1da177e4
LT		 3049 driver_dump->hdr.num_entries++;
3050}
3051
3052/**
3053 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
3054 * @ioa_cfg: ioa config struct
3055 * @dump: dump struct
3056 *
3057 * Return value:
3058 * nothing
3059 **/
3060static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
3061{
3062 unsigned long start_addr, sdt_word;
3063 unsigned long lock_flags = 0;
3064 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
3065 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
4d4dd706
KSS		 3066 u32 num_entries, max_num_entries, start_off, end_off;
3067 u32 max_dump_size, bytes_to_copy, bytes_copied, rc;
1da177e4 3068 struct ipr_sdt *sdt;
dcbad00e 3069 int valid = 1;
1da177e4
LT		 3070 int i;
3071
3072 ENTER;
3073
3074 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3075
41e9a696 3076 if (ioa_cfg->sdt_state != READ_DUMP) {
1da177e4
LT		 3077 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3078 return;
3079 }
3080
110def85
WB		 3081 if (ioa_cfg->sis64) {
3082 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3083 ssleep(IPR_DUMP_DELAY_SECONDS);
3084 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3085 }
3086
1da177e4
LT		 3087 start_addr = readl(ioa_cfg->ioa_mailbox);
3088
dcbad00e 3089 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
1da177e4
LT		 3090 dev_err(&ioa_cfg->pdev->dev,
3091 "Invalid dump table format: %lx\n", start_addr);
3092 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3093 return;
3094 }
3095
3096 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
3097
3098 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
3099
3100 /* Initialize the overall dump header */
3101 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
3102 driver_dump->hdr.num_entries = 1;
3103 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
3104 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
3105 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
3106 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
3107
3108 ipr_dump_version_data(ioa_cfg, driver_dump);
3109 ipr_dump_location_data(ioa_cfg, driver_dump);
3110 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
3111 ipr_dump_trace_data(ioa_cfg, driver_dump);
3112
3113 /* Update dump_header */
3114 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
3115
3116 /* IOA Dump entry */
3117 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
1da177e4
LT		 3118 ioa_dump->hdr.len = 0;
3119 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3120 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
3121
3122 /* First entries in sdt are actually a list of dump addresses and
3123 lengths to gather the real dump data. sdt represents the pointer
3124 to the ioa generated dump table. Dump data will be extracted based
3125 on entries in this table */
3126 sdt = &ioa_dump->sdt;
3127
4d4dd706
KSS		 3128 if (ioa_cfg->sis64) {
3129 max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES;
3130 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
3131 } else {
3132 max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES;
3133 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
3134 }
3135
3136 bytes_to_copy = offsetof(struct ipr_sdt, entry) +
3137 (max_num_entries * sizeof(struct ipr_sdt_entry));
1da177e4 3138 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
4d4dd706 3139 bytes_to_copy / sizeof(__be32));
1da177e4
LT		 3140
3141 /* Smart Dump table is ready to use and the first entry is valid */
dcbad00e
WB		 3142 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
3143 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 3144 dev_err(&ioa_cfg->pdev->dev,
3145 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
3146 rc, be32_to_cpu(sdt->hdr.state));
3147 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
3148 ioa_cfg->sdt_state = DUMP_OBTAINED;
3149 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3150 return;
3151 }
3152
3153 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
3154
4d4dd706
KSS		 3155 if (num_entries > max_num_entries)
3156 num_entries = max_num_entries;
3157
3158 /* Update dump length to the actual data to be copied */
3159 dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header);
3160 if (ioa_cfg->sis64)
3161 dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry);
3162 else
3163 dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry);
1da177e4
LT		 3164
3165 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3166
3167 for (i = 0; i < num_entries; i++) {
4d4dd706 3168 if (ioa_dump->hdr.len > max_dump_size) {
1da177e4
LT		 3169 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3170 break;
3171 }
3172
3173 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
dcbad00e
WB		 3174 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
3175 if (ioa_cfg->sis64)
3176 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
3177 else {
3178 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
3179 end_off = be32_to_cpu(sdt->entry[i].end_token);
3180
3181 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
3182 bytes_to_copy = end_off - start_off;
3183 else
3184 valid = 0;
3185 }
3186 if (valid) {
4d4dd706 3187 if (bytes_to_copy > max_dump_size) {
1da177e4
LT		 3188 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
3189 continue;
3190 }
3191
3192 /* Copy data from adapter to driver buffers */
3193 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
3194 bytes_to_copy);
3195
3196 ioa_dump->hdr.len += bytes_copied;
3197
3198 if (bytes_copied != bytes_to_copy) {
3199 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3200 break;
3201 }
3202 }
3203 }
3204 }
3205
3206 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3207
3208 /* Update dump_header */
3209 driver_dump->hdr.len += ioa_dump->hdr.len;
3210 wmb();
3211 ioa_cfg->sdt_state = DUMP_OBTAINED;
3212 LEAVE;
3213}
3214
3215#else
203fa3fe 3216#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while (0)
1da177e4
LT		 3217#endif
3218
3219/**
3220 * ipr_release_dump - Free adapter dump memory
3221 * @kref: kref struct
3222 *
3223 * Return value:
3224 * nothing
3225 **/
3226static void ipr_release_dump(struct kref *kref)
3227{
203fa3fe 3228 struct ipr_dump *dump = container_of(kref, struct ipr_dump, kref);
1da177e4
LT		 3229 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3230 unsigned long lock_flags = 0;
3231 int i;
3232
3233 ENTER;
3234 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3235 ioa_cfg->dump = NULL;
3236 ioa_cfg->sdt_state = INACTIVE;
3237 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3238
3239 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3240 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3241
4d4dd706 3242 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 3243 kfree(dump);
3244 LEAVE;
3245}
3246
3247/**
3248 * ipr_worker_thread - Worker thread
c4028958 3249 * @work: ioa config struct
1da177e4
LT		 3250 *
3251 * Called at task level from a work thread. This function takes care
3252 * of adding and removing device from the mid-layer as configuration
3253 * changes are detected by the adapter.
3254 *
3255 * Return value:
3256 * nothing
3257 **/
c4028958 3258static void ipr_worker_thread(struct work_struct *work)
1da177e4
LT		 3259{
3260 unsigned long lock_flags;
3261 struct ipr_resource_entry *res;
3262 struct scsi_device *sdev;
3263 struct ipr_dump *dump;
c4028958
DH		 3264 struct ipr_ioa_cfg *ioa_cfg =
3265 container_of(work, struct ipr_ioa_cfg, work_q);
1da177e4
LT		 3266 u8 bus, target, lun;
3267 int did_work;
3268
3269 ENTER;
3270 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3271
41e9a696 3272 if (ioa_cfg->sdt_state == READ_DUMP) {
1da177e4
LT		 3273 dump = ioa_cfg->dump;
3274 if (!dump) {
3275 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3276 return;
3277 }
3278 kref_get(&dump->kref);
3279 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3280 ipr_get_ioa_dump(ioa_cfg, dump);
3281 kref_put(&dump->kref, ipr_release_dump);
3282
3283 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4c647e90 3284 if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout)
1da177e4
LT		 3285 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3286 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3287 return;
3288 }
3289
3290restart:
3291 do {
3292 did_work = 0;
f688f96d 3293 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
1da177e4
LT		 3294 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3295 return;
3296 }
3297
3298 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3299 if (res->del_from_ml && res->sdev) {
3300 did_work = 1;
3301 sdev = res->sdev;
3302 if (!scsi_device_get(sdev)) {
5767a1c4
KSS		 3303 if (!res->add_to_ml)
3304 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3305 else
3306 res->del_from_ml = 0;
1da177e4
LT		 3307 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3308 scsi_remove_device(sdev);
3309 scsi_device_put(sdev);
3310 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3311 }
3312 break;
3313 }
3314 }
203fa3fe 3315 } while (did_work);
1da177e4
LT		 3316
3317 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3318 if (res->add_to_ml) {
3e7ebdfa
WB		 3319 bus = res->bus;
3320 target = res->target;
3321 lun = res->lun;
1121b794 3322 res->add_to_ml = 0;
1da177e4
LT		 3323 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3324 scsi_add_device(ioa_cfg->host, bus, target, lun);
3325 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3326 goto restart;
3327 }
3328 }
3329
f688f96d 3330 ioa_cfg->scan_done = 1;
1da177e4 3331 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
ee959b00 3332 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
1da177e4
LT		 3333 LEAVE;
3334}
3335
3336#ifdef CONFIG_SCSI_IPR_TRACE
3337/**
3338 * ipr_read_trace - Dump the adapter trace
2c3c8bea 3339 * @filp: open sysfs file
1da177e4 3340 * @kobj: kobject struct
91a69029 3341 * @bin_attr: bin_attribute struct
1da177e4
LT		 3342 * @buf: buffer
3343 * @off: offset
3344 * @count: buffer size
3345 *
3346 * Return value:
3347 * number of bytes printed to buffer
3348 **/
2c3c8bea 3349static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
91a69029
ZR		 3350 struct bin_attribute *bin_attr,
3351 char *buf, loff_t off, size_t count)
1da177e4 3352{
ee959b00
TJ		 3353 struct device *dev = container_of(kobj, struct device, kobj);
3354 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3355 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3356 unsigned long lock_flags = 0;
d777aaf3 3357 ssize_t ret;
1da177e4
LT		 3358
3359 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3360 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3361 IPR_TRACE_SIZE);
1da177e4 3362 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3363
3364 return ret;
1da177e4
LT		 3365}
3366
3367static struct bin_attribute ipr_trace_attr = {
3368 .attr = {
3369 .name = "trace",
3370 .mode = S_IRUGO,
3371 },
3372 .size = 0,
3373 .read = ipr_read_trace,
3374};
3375#endif
3376
3377/**
3378 * ipr_show_fw_version - Show the firmware version
ee959b00
TJ		 3379 * @dev: class device struct
3380 * @buf: buffer
1da177e4
LT		 3381 *
3382 * Return value:
3383 * number of bytes printed to buffer
3384 **/
ee959b00
TJ		 3385static ssize_t ipr_show_fw_version(struct device *dev,
3386 struct device_attribute *attr, char *buf)
1da177e4 3387{
ee959b00 3388 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3389 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3390 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3391 unsigned long lock_flags = 0;
3392 int len;
3393
3394 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3395 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3396 ucode_vpd->major_release, ucode_vpd->card_type,
3397 ucode_vpd->minor_release[0],
3398 ucode_vpd->minor_release[1]);
3399 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3400 return len;
3401}
3402
ee959b00 3403static struct device_attribute ipr_fw_version_attr = {
1da177e4
LT		 3404 .attr = {
3405 .name = "fw_version",
3406 .mode = S_IRUGO,
3407 },
3408 .show = ipr_show_fw_version,
3409};
3410
3411/**
3412 * ipr_show_log_level - Show the adapter's error logging level
ee959b00
TJ		 3413 * @dev: class device struct
3414 * @buf: buffer
1da177e4
LT		 3415 *
3416 * Return value:
3417 * number of bytes printed to buffer
3418 **/
ee959b00
TJ		 3419static ssize_t ipr_show_log_level(struct device *dev,
3420 struct device_attribute *attr, char *buf)
1da177e4 3421{
ee959b00 3422 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3423 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3424 unsigned long lock_flags = 0;
3425 int len;
3426
3427 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3428 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3429 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3430 return len;
3431}
3432
3433/**
3434 * ipr_store_log_level - Change the adapter's error logging level
ee959b00
TJ		 3435 * @dev: class device struct
3436 * @buf: buffer
1da177e4
LT		 3437 *
3438 * Return value:
3439 * number of bytes printed to buffer
3440 **/
ee959b00 3441static ssize_t ipr_store_log_level(struct device *dev,
203fa3fe 3442 struct device_attribute *attr,
1da177e4
LT		 3443 const char *buf, size_t count)
3444{
ee959b00 3445 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3446 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3447 unsigned long lock_flags = 0;
3448
3449 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3450 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3451 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3452 return strlen(buf);
3453}
3454
ee959b00 3455static struct device_attribute ipr_log_level_attr = {
1da177e4
LT		 3456 .attr = {
3457 .name = "log_level",
3458 .mode = S_IRUGO | S_IWUSR,
3459 },
3460 .show = ipr_show_log_level,
3461 .store = ipr_store_log_level
3462};
3463
3464/**
3465 * ipr_store_diagnostics - IOA Diagnostics interface
ee959b00
TJ		 3466 * @dev: device struct
3467 * @buf: buffer
3468 * @count: buffer size
1da177e4
LT		 3469 *
3470 * This function will reset the adapter and wait a reasonable
3471 * amount of time for any errors that the adapter might log.
3472 *
3473 * Return value:
3474 * count on success / other on failure
3475 **/
ee959b00
TJ		 3476static ssize_t ipr_store_diagnostics(struct device *dev,
3477 struct device_attribute *attr,
1da177e4
LT		 3478 const char *buf, size_t count)
3479{
ee959b00 3480 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3481 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3482 unsigned long lock_flags = 0;
3483 int rc = count;
3484
3485 if (!capable(CAP_SYS_ADMIN))
3486 return -EACCES;
3487
1da177e4 3488 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 3489 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 3490 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3491 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3492 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3493 }
3494
1da177e4
LT		 3495 ioa_cfg->errors_logged = 0;
3496 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3497
3498 if (ioa_cfg->in_reset_reload) {
3499 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3500 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3501
3502 /* Wait for a second for any errors to be logged */
3503 msleep(1000);
3504 } else {
3505 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3506 return -EIO;
3507 }
3508
3509 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3510 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3511 rc = -EIO;
3512 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3513
3514 return rc;
3515}
3516
ee959b00 3517static struct device_attribute ipr_diagnostics_attr = {
1da177e4
LT		 3518 .attr = {
3519 .name = "run_diagnostics",
3520 .mode = S_IWUSR,
3521 },
3522 .store = ipr_store_diagnostics
3523};
3524
f37eb54b
BK		 3525/**
3526 * ipr_show_adapter_state - Show the adapter's state
ee959b00
TJ		 3527 * @class_dev: device struct
3528 * @buf: buffer
f37eb54b
BK		 3529 *
3530 * Return value:
3531 * number of bytes printed to buffer
3532 **/
ee959b00
TJ		 3533static ssize_t ipr_show_adapter_state(struct device *dev,
3534 struct device_attribute *attr, char *buf)
f37eb54b 3535{
ee959b00 3536 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b
BK		 3537 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3538 unsigned long lock_flags = 0;
3539 int len;
3540
3541 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
56d6aa33 3542 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
f37eb54b
BK		 3543 len = snprintf(buf, PAGE_SIZE, "offline\n");
3544 else
3545 len = snprintf(buf, PAGE_SIZE, "online\n");
3546 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3547 return len;
3548}
3549
3550/**
3551 * ipr_store_adapter_state - Change adapter state
ee959b00
TJ		 3552 * @dev: device struct
3553 * @buf: buffer
3554 * @count: buffer size
f37eb54b
BK		 3555 *
3556 * This function will change the adapter's state.
3557 *
3558 * Return value:
3559 * count on success / other on failure
3560 **/
ee959b00
TJ		 3561static ssize_t ipr_store_adapter_state(struct device *dev,
3562 struct device_attribute *attr,
f37eb54b
BK		 3563 const char *buf, size_t count)
3564{
ee959b00 3565 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b
BK		 3566 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3567 unsigned long lock_flags;
56d6aa33 3568 int result = count, i;
f37eb54b
BK		 3569
3570 if (!capable(CAP_SYS_ADMIN))
3571 return -EACCES;
3572
3573 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
56d6aa33 3574 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead &&
3575 !strncmp(buf, "online", 6)) {
3576 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
3577 spin_lock(&ioa_cfg->hrrq[i]._lock);
3578 ioa_cfg->hrrq[i].ioa_is_dead = 0;
3579 spin_unlock(&ioa_cfg->hrrq[i]._lock);
3580 }
3581 wmb();
f37eb54b
BK		 3582 ioa_cfg->reset_retries = 0;
3583 ioa_cfg->in_ioa_bringdown = 0;
3584 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3585 }
3586 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3587 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3588
3589 return result;
3590}
3591
ee959b00 3592static struct device_attribute ipr_ioa_state_attr = {
f37eb54b 3593 .attr = {
49dd0961 3594 .name = "online_state",
f37eb54b
BK		 3595 .mode = S_IRUGO | S_IWUSR,
3596 },
3597 .show = ipr_show_adapter_state,
3598 .store = ipr_store_adapter_state
3599};
3600
1da177e4
LT		 3601/**
3602 * ipr_store_reset_adapter - Reset the adapter
ee959b00
TJ		 3603 * @dev: device struct
3604 * @buf: buffer
3605 * @count: buffer size
1da177e4
LT		 3606 *
3607 * This function will reset the adapter.
3608 *
3609 * Return value:
3610 * count on success / other on failure
3611 **/
ee959b00
TJ		 3612static ssize_t ipr_store_reset_adapter(struct device *dev,
3613 struct device_attribute *attr,
1da177e4
LT		 3614 const char *buf, size_t count)
3615{
ee959b00 3616 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3617 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3618 unsigned long lock_flags;
3619 int result = count;
3620
3621 if (!capable(CAP_SYS_ADMIN))
3622 return -EACCES;
3623
3624 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3625 if (!ioa_cfg->in_reset_reload)
3626 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3627 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3628 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3629
3630 return result;
3631}
3632
ee959b00 3633static struct device_attribute ipr_ioa_reset_attr = {
1da177e4
LT		 3634 .attr = {
3635 .name = "reset_host",
3636 .mode = S_IWUSR,
3637 },
3638 .store = ipr_store_reset_adapter
3639};
3640
511cbce2 3641static int ipr_iopoll(struct irq_poll *iop, int budget);
b53d124a 3642 /**
3643 * ipr_show_iopoll_weight - Show ipr polling mode
3644 * @dev: class device struct
3645 * @buf: buffer
3646 *
3647 * Return value:
3648 * number of bytes printed to buffer
3649 **/
3650static ssize_t ipr_show_iopoll_weight(struct device *dev,
3651 struct device_attribute *attr, char *buf)
3652{
3653 struct Scsi_Host *shost = class_to_shost(dev);
3654 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3655 unsigned long lock_flags = 0;
3656 int len;
3657
3658 spin_lock_irqsave(shost->host_lock, lock_flags);
3659 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->iopoll_weight);
3660 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3661
3662 return len;
3663}
3664
3665/**
3666 * ipr_store_iopoll_weight - Change the adapter's polling mode
3667 * @dev: class device struct
3668 * @buf: buffer
3669 *
3670 * Return value:
3671 * number of bytes printed to buffer
3672 **/
3673static ssize_t ipr_store_iopoll_weight(struct device *dev,
3674 struct device_attribute *attr,
3675 const char *buf, size_t count)
3676{
3677 struct Scsi_Host *shost = class_to_shost(dev);
3678 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3679 unsigned long user_iopoll_weight;
3680 unsigned long lock_flags = 0;
3681 int i;
3682
3683 if (!ioa_cfg->sis64) {
511cbce2 3684 dev_info(&ioa_cfg->pdev->dev, "irq_poll not supported on this adapter\n");
b53d124a 3685 return -EINVAL;
3686 }
3687 if (kstrtoul(buf, 10, &user_iopoll_weight))
3688 return -EINVAL;
3689
3690 if (user_iopoll_weight > 256) {
511cbce2 3691 dev_info(&ioa_cfg->pdev->dev, "Invalid irq_poll weight. It must be less than 256\n");
b53d124a 3692 return -EINVAL;
3693 }
3694
3695 if (user_iopoll_weight == ioa_cfg->iopoll_weight) {
511cbce2 3696 dev_info(&ioa_cfg->pdev->dev, "Current irq_poll weight has the same weight\n");
b53d124a 3697 return strlen(buf);
3698 }
3699
89f8b33c 3700 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 3701 for (i = 1; i < ioa_cfg->hrrq_num; i++)
511cbce2 3702 irq_poll_disable(&ioa_cfg->hrrq[i].iopoll);
b53d124a 3703 }
3704
3705 spin_lock_irqsave(shost->host_lock, lock_flags);
3706 ioa_cfg->iopoll_weight = user_iopoll_weight;
89f8b33c 3707 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 3708 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
511cbce2 3709 irq_poll_init(&ioa_cfg->hrrq[i].iopoll,
b53d124a 3710 ioa_cfg->iopoll_weight, ipr_iopoll);
b53d124a 3711 }
3712 }
3713 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3714
3715 return strlen(buf);
3716}
3717
3718static struct device_attribute ipr_iopoll_weight_attr = {
3719 .attr = {
3720 .name = "iopoll_weight",
3721 .mode = S_IRUGO | S_IWUSR,
3722 },
3723 .show = ipr_show_iopoll_weight,
3724 .store = ipr_store_iopoll_weight
3725};
3726
1da177e4
LT		 3727/**
3728 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3729 * @buf_len: buffer length
3730 *
3731 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3732 * list to use for microcode download
3733 *
3734 * Return value:
3735 * pointer to sglist / NULL on failure
3736 **/
3737static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3738{
3739 int sg_size, order, bsize_elem, num_elem, i, j;
3740 struct ipr_sglist *sglist;
3741 struct scatterlist *scatterlist;
3742 struct page *page;
3743
3744 /* Get the minimum size per scatter/gather element */
3745 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3746
3747 /* Get the actual size per element */
3748 order = get_order(sg_size);
3749
3750 /* Determine the actual number of bytes per element */
3751 bsize_elem = PAGE_SIZE * (1 << order);
3752
3753 /* Determine the actual number of sg entries needed */
3754 if (buf_len % bsize_elem)
3755 num_elem = (buf_len / bsize_elem) + 1;
3756 else
3757 num_elem = buf_len / bsize_elem;
3758
3759 /* Allocate a scatter/gather list for the DMA */
0bc42e35 3760 sglist = kzalloc(sizeof(struct ipr_sglist) +
1da177e4
LT		 3761 (sizeof(struct scatterlist) * (num_elem - 1)),
3762 GFP_KERNEL);
3763
3764 if (sglist == NULL) {
3765 ipr_trace;
3766 return NULL;
3767 }
3768
1da177e4 3769 scatterlist = sglist->scatterlist;
45711f1a 3770 sg_init_table(scatterlist, num_elem);
1da177e4
LT		 3771
3772 sglist->order = order;
3773 sglist->num_sg = num_elem;
3774
3775 /* Allocate a bunch of sg elements */
3776 for (i = 0; i < num_elem; i++) {
3777 page = alloc_pages(GFP_KERNEL, order);
3778 if (!page) {
3779 ipr_trace;
3780
3781 /* Free up what we already allocated */
3782 for (j = i - 1; j >= 0; j--)
45711f1a 3783 __free_pages(sg_page(&scatterlist[j]), order);
1da177e4
LT		 3784 kfree(sglist);
3785 return NULL;
3786 }
3787
642f1490 3788 sg_set_page(&scatterlist[i], page, 0, 0);
1da177e4
LT		 3789 }
3790
3791 return sglist;
3792}
3793
3794/**
3795 * ipr_free_ucode_buffer - Frees a microcode download buffer
3796 * @p_dnld: scatter/gather list pointer
3797 *
3798 * Free a DMA'able ucode download buffer previously allocated with
3799 * ipr_alloc_ucode_buffer
3800 *
3801 * Return value:
3802 * nothing
3803 **/
3804static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3805{
3806 int i;
3807
3808 for (i = 0; i < sglist->num_sg; i++)
45711f1a 3809 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
1da177e4
LT		 3810
3811 kfree(sglist);
3812}
3813
3814/**
3815 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3816 * @sglist: scatter/gather list pointer
3817 * @buffer: buffer pointer
3818 * @len: buffer length
3819 *
3820 * Copy a microcode image from a user buffer into a buffer allocated by
3821 * ipr_alloc_ucode_buffer
3822 *
3823 * Return value:
3824 * 0 on success / other on failure
3825 **/
3826static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3827 u8 *buffer, u32 len)
3828{
3829 int bsize_elem, i, result = 0;
3830 struct scatterlist *scatterlist;
3831 void *kaddr;
3832
3833 /* Determine the actual number of bytes per element */
3834 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3835
3836 scatterlist = sglist->scatterlist;
3837
3838 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
45711f1a
JA		 3839 struct page *page = sg_page(&scatterlist[i]);
3840
3841 kaddr = kmap(page);
1da177e4 3842 memcpy(kaddr, buffer, bsize_elem);
45711f1a 3843 kunmap(page);
1da177e4
LT		 3844
3845 scatterlist[i].length = bsize_elem;
3846
3847 if (result != 0) {
3848 ipr_trace;
3849 return result;
3850 }
3851 }
3852
3853 if (len % bsize_elem) {
45711f1a
JA		 3854 struct page *page = sg_page(&scatterlist[i]);
3855
3856 kaddr = kmap(page);
1da177e4 3857 memcpy(kaddr, buffer, len % bsize_elem);
45711f1a 3858 kunmap(page);
1da177e4
LT		 3859
3860 scatterlist[i].length = len % bsize_elem;
3861 }
3862
3863 sglist->buffer_len = len;
3864 return result;
3865}
3866
a32c055f
WB		 3867/**
3868 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3869 * @ipr_cmd: ipr command struct
3870 * @sglist: scatter/gather list
3871 *
3872 * Builds a microcode download IOA data list (IOADL).
3873 *
3874 **/
3875static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3876 struct ipr_sglist *sglist)
3877{
3878 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3879 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3880 struct scatterlist *scatterlist = sglist->scatterlist;
3881 int i;
3882
3883 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3884 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3885 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3886
3887 ioarcb->ioadl_len =
3888 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3889 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3890 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3891 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3892 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3893 }
3894
3895 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3896}
3897
1da177e4 3898/**
12baa420 3899 * ipr_build_ucode_ioadl - Build a microcode download IOADL
1da177e4
LT		 3900 * @ipr_cmd: ipr command struct
3901 * @sglist: scatter/gather list
1da177e4 3902 *
12baa420 3903 * Builds a microcode download IOA data list (IOADL).
1da177e4 3904 *
1da177e4 3905 **/
12baa420
BK		 3906static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3907 struct ipr_sglist *sglist)
1da177e4 3908{
1da177e4 3909 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 3910 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4
LT		 3911 struct scatterlist *scatterlist = sglist->scatterlist;
3912 int i;
3913
12baa420 3914 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
1da177e4 3915 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 3916 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3917
3918 ioarcb->ioadl_len =
1da177e4
LT		 3919 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3920
3921 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3922 ioadl[i].flags_and_data_len =
3923 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3924 ioadl[i].address =
3925 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3926 }
3927
12baa420
BK		 3928 ioadl[i-1].flags_and_data_len |=
3929 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3930}
3931
3932/**
3933 * ipr_update_ioa_ucode - Update IOA's microcode
3934 * @ioa_cfg: ioa config struct
3935 * @sglist: scatter/gather list
3936 *
3937 * Initiate an adapter reset to update the IOA's microcode
3938 *
3939 * Return value:
3940 * 0 on success / -EIO on failure
3941 **/
3942static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3943 struct ipr_sglist *sglist)
3944{
3945 unsigned long lock_flags;
3946
3947 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 3948 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 3949 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3950 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3951 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3952 }
12baa420
BK		 3953
3954 if (ioa_cfg->ucode_sglist) {
3955 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3956 dev_err(&ioa_cfg->pdev->dev,
3957 "Microcode download already in progress\n");
3958 return -EIO;
1da177e4 3959 }
12baa420 3960
d73341bf
AB		 3961 sglist->num_dma_sg = dma_map_sg(&ioa_cfg->pdev->dev,
3962 sglist->scatterlist, sglist->num_sg,
3963 DMA_TO_DEVICE);
12baa420
BK		 3964
3965 if (!sglist->num_dma_sg) {
3966 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3967 dev_err(&ioa_cfg->pdev->dev,
3968 "Failed to map microcode download buffer!\n");
1da177e4
LT		 3969 return -EIO;
3970 }
3971
12baa420
BK		 3972 ioa_cfg->ucode_sglist = sglist;
3973 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3974 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3975 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3976
3977 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3978 ioa_cfg->ucode_sglist = NULL;
3979 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4
LT		 3980 return 0;
3981}
3982
3983/**
3984 * ipr_store_update_fw - Update the firmware on the adapter
ee959b00
TJ		 3985 * @class_dev: device struct
3986 * @buf: buffer
3987 * @count: buffer size
1da177e4
LT		 3988 *
3989 * This function will update the firmware on the adapter.
3990 *
3991 * Return value:
3992 * count on success / other on failure
3993 **/
ee959b00
TJ		 3994static ssize_t ipr_store_update_fw(struct device *dev,
3995 struct device_attribute *attr,
3996 const char *buf, size_t count)
1da177e4 3997{
ee959b00 3998 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3999 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4000 struct ipr_ucode_image_header *image_hdr;
4001 const struct firmware *fw_entry;
4002 struct ipr_sglist *sglist;
1da177e4
LT		 4003 char fname[100];
4004 char *src;
d63c7dd5 4005 int result, dnld_size;
1da177e4
LT		 4006
4007 if (!capable(CAP_SYS_ADMIN))
4008 return -EACCES;
4009
d63c7dd5 4010 snprintf(fname, sizeof(fname), "%s", buf);
1da177e4 4011
203fa3fe 4012 if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
1da177e4
LT		 4013 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
4014 return -EIO;
4015 }
4016
4017 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
4018
1da177e4
LT		 4019 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
4020 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
4021 sglist = ipr_alloc_ucode_buffer(dnld_size);
4022
4023 if (!sglist) {
4024 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
4025 release_firmware(fw_entry);
4026 return -ENOMEM;
4027 }
4028
4029 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
4030
4031 if (result) {
4032 dev_err(&ioa_cfg->pdev->dev,
4033 "Microcode buffer copy to DMA buffer failed\n");
12baa420 4034 goto out;
1da177e4
LT		 4035 }
4036
14ed9cc7
WB		 4037 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
4038
12baa420 4039 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
1da177e4 4040
12baa420
BK		 4041 if (!result)
4042 result = count;
4043out:
1da177e4
LT		 4044 ipr_free_ucode_buffer(sglist);
4045 release_firmware(fw_entry);
12baa420 4046 return result;
1da177e4
LT		 4047}
4048
ee959b00 4049static struct device_attribute ipr_update_fw_attr = {
1da177e4
LT		 4050 .attr = {
4051 .name = "update_fw",
4052 .mode = S_IWUSR,
4053 },
4054 .store = ipr_store_update_fw
4055};
4056
75576bb9
WB		 4057/**
4058 * ipr_show_fw_type - Show the adapter's firmware type.
4059 * @dev: class device struct
4060 * @buf: buffer
4061 *
4062 * Return value:
4063 * number of bytes printed to buffer
4064 **/
4065static ssize_t ipr_show_fw_type(struct device *dev,
4066 struct device_attribute *attr, char *buf)
4067{
4068 struct Scsi_Host *shost = class_to_shost(dev);
4069 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4070 unsigned long lock_flags = 0;
4071 int len;
4072
4073 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4074 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
4075 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4076 return len;
4077}
4078
4079static struct device_attribute ipr_ioa_fw_type_attr = {
4080 .attr = {
4081 .name = "fw_type",
4082 .mode = S_IRUGO,
4083 },
4084 .show = ipr_show_fw_type
4085};
4086
ee959b00 4087static struct device_attribute *ipr_ioa_attrs[] = {
1da177e4
LT		 4088 &ipr_fw_version_attr,
4089 &ipr_log_level_attr,
4090 &ipr_diagnostics_attr,
f37eb54b 4091 &ipr_ioa_state_attr,
1da177e4
LT		 4092 &ipr_ioa_reset_attr,
4093 &ipr_update_fw_attr,
75576bb9 4094 &ipr_ioa_fw_type_attr,
b53d124a 4095 &ipr_iopoll_weight_attr,
1da177e4
LT		 4096 NULL,
4097};
4098
4099#ifdef CONFIG_SCSI_IPR_DUMP
4100/**
4101 * ipr_read_dump - Dump the adapter
2c3c8bea 4102 * @filp: open sysfs file
1da177e4 4103 * @kobj: kobject struct
91a69029 4104 * @bin_attr: bin_attribute struct
1da177e4
LT		 4105 * @buf: buffer
4106 * @off: offset
4107 * @count: buffer size
4108 *
4109 * Return value:
4110 * number of bytes printed to buffer
4111 **/
2c3c8bea 4112static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4113 struct bin_attribute *bin_attr,
4114 char *buf, loff_t off, size_t count)
1da177e4 4115{
ee959b00 4116 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4117 struct Scsi_Host *shost = class_to_shost(cdev);
4118 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4119 struct ipr_dump *dump;
4120 unsigned long lock_flags = 0;
4121 char *src;
4d4dd706 4122 int len, sdt_end;
1da177e4
LT		 4123 size_t rc = count;
4124
4125 if (!capable(CAP_SYS_ADMIN))
4126 return -EACCES;
4127
4128 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4129 dump = ioa_cfg->dump;
4130
4131 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
4132 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4133 return 0;
4134 }
4135 kref_get(&dump->kref);
4136 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4137
4138 if (off > dump->driver_dump.hdr.len) {
4139 kref_put(&dump->kref, ipr_release_dump);
4140 return 0;
4141 }
4142
4143 if (off + count > dump->driver_dump.hdr.len) {
4144 count = dump->driver_dump.hdr.len - off;
4145 rc = count;
4146 }
4147
4148 if (count && off < sizeof(dump->driver_dump)) {
4149 if (off + count > sizeof(dump->driver_dump))
4150 len = sizeof(dump->driver_dump) - off;
4151 else
4152 len = count;
4153 src = (u8 *)&dump->driver_dump + off;
4154 memcpy(buf, src, len);
4155 buf += len;
4156 off += len;
4157 count -= len;
4158 }
4159
4160 off -= sizeof(dump->driver_dump);
4161
4d4dd706
KSS		 4162 if (ioa_cfg->sis64)
4163 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4164 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
4165 sizeof(struct ipr_sdt_entry));
4166 else
4167 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4168 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
4169
4170 if (count && off < sdt_end) {
4171 if (off + count > sdt_end)
4172 len = sdt_end - off;
1da177e4
LT		 4173 else
4174 len = count;
4175 src = (u8 *)&dump->ioa_dump + off;
4176 memcpy(buf, src, len);
4177 buf += len;
4178 off += len;
4179 count -= len;
4180 }
4181
4d4dd706 4182 off -= sdt_end;
1da177e4
LT		 4183
4184 while (count) {
4185 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
4186 len = PAGE_ALIGN(off) - off;
4187 else
4188 len = count;
4189 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
4190 src += off & ~PAGE_MASK;
4191 memcpy(buf, src, len);
4192 buf += len;
4193 off += len;
4194 count -= len;
4195 }
4196
4197 kref_put(&dump->kref, ipr_release_dump);
4198 return rc;
4199}
4200
4201/**
4202 * ipr_alloc_dump - Prepare for adapter dump
4203 * @ioa_cfg: ioa config struct
4204 *
4205 * Return value:
4206 * 0 on success / other on failure
4207 **/
4208static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
4209{
4210 struct ipr_dump *dump;
4d4dd706 4211 __be32 **ioa_data;
1da177e4
LT		 4212 unsigned long lock_flags = 0;
4213
0bc42e35 4214 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
1da177e4
LT		 4215
4216 if (!dump) {
4217 ipr_err("Dump memory allocation failed\n");
4218 return -ENOMEM;
4219 }
4220
4d4dd706
KSS		 4221 if (ioa_cfg->sis64)
4222 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4223 else
4224 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4225
4226 if (!ioa_data) {
4227 ipr_err("Dump memory allocation failed\n");
4228 kfree(dump);
4229 return -ENOMEM;
4230 }
4231
4232 dump->ioa_dump.ioa_data = ioa_data;
4233
1da177e4
LT		 4234 kref_init(&dump->kref);
4235 dump->ioa_cfg = ioa_cfg;
4236
4237 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4238
4239 if (INACTIVE != ioa_cfg->sdt_state) {
4240 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4d4dd706 4241 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 4242 kfree(dump);
4243 return 0;
4244 }
4245
4246 ioa_cfg->dump = dump;
4247 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
56d6aa33 4248 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && !ioa_cfg->dump_taken) {
1da177e4
LT		 4249 ioa_cfg->dump_taken = 1;
4250 schedule_work(&ioa_cfg->work_q);
4251 }
4252 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4253
1da177e4
LT		 4254 return 0;
4255}
4256
4257/**
4258 * ipr_free_dump - Free adapter dump memory
4259 * @ioa_cfg: ioa config struct
4260 *
4261 * Return value:
4262 * 0 on success / other on failure
4263 **/
4264static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
4265{
4266 struct ipr_dump *dump;
4267 unsigned long lock_flags = 0;
4268
4269 ENTER;
4270
4271 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4272 dump = ioa_cfg->dump;
4273 if (!dump) {
4274 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4275 return 0;
4276 }
4277
4278 ioa_cfg->dump = NULL;
4279 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4280
4281 kref_put(&dump->kref, ipr_release_dump);
4282
4283 LEAVE;
4284 return 0;
4285}
4286
4287/**
4288 * ipr_write_dump - Setup dump state of adapter
2c3c8bea 4289 * @filp: open sysfs file
1da177e4 4290 * @kobj: kobject struct
91a69029 4291 * @bin_attr: bin_attribute struct
1da177e4
LT		 4292 * @buf: buffer
4293 * @off: offset
4294 * @count: buffer size
4295 *
4296 * Return value:
4297 * number of bytes printed to buffer
4298 **/
2c3c8bea 4299static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4300 struct bin_attribute *bin_attr,
4301 char *buf, loff_t off, size_t count)
1da177e4 4302{
ee959b00 4303 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4304 struct Scsi_Host *shost = class_to_shost(cdev);
4305 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4306 int rc;
4307
4308 if (!capable(CAP_SYS_ADMIN))
4309 return -EACCES;
4310
4311 if (buf[0] == '1')
4312 rc = ipr_alloc_dump(ioa_cfg);
4313 else if (buf[0] == '0')
4314 rc = ipr_free_dump(ioa_cfg);
4315 else
4316 return -EINVAL;
4317
4318 if (rc)
4319 return rc;
4320 else
4321 return count;
4322}
4323
4324static struct bin_attribute ipr_dump_attr = {
4325 .attr = {
4326 .name = "dump",
4327 .mode = S_IRUSR | S_IWUSR,
4328 },
4329 .size = 0,
4330 .read = ipr_read_dump,
4331 .write = ipr_write_dump
4332};
4333#else
4334static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4335#endif
4336
4337/**
4338 * ipr_change_queue_depth - Change the device's queue depth
4339 * @sdev: scsi device struct
4340 * @qdepth: depth to set
e881a172 4341 * @reason: calling context
1da177e4
LT		 4342 *
4343 * Return value:
4344 * actual depth set
4345 **/
db5ed4df 4346static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
1da177e4 4347{
35a39691
BK		 4348 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4349 struct ipr_resource_entry *res;
4350 unsigned long lock_flags = 0;
4351
4352 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4353 res = (struct ipr_resource_entry *)sdev->hostdata;
4354
4355 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4356 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4357 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4358
db5ed4df 4359 scsi_change_queue_depth(sdev, qdepth);
1da177e4
LT		 4360 return sdev->queue_depth;
4361}
4362
1da177e4
LT		 4363/**
4364 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4365 * @dev: device struct
46d74563 4366 * @attr: device attribute structure
1da177e4
LT		 4367 * @buf: buffer
4368 *
4369 * Return value:
4370 * number of bytes printed to buffer
4371 **/
10523b3b 4372static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 4373{
4374 struct scsi_device *sdev = to_scsi_device(dev);
4375 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4376 struct ipr_resource_entry *res;
4377 unsigned long lock_flags = 0;
4378 ssize_t len = -ENXIO;
4379
4380 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4381 res = (struct ipr_resource_entry *)sdev->hostdata;
4382 if (res)
3e7ebdfa 4383 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
1da177e4
LT		 4384 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4385 return len;
4386}
4387
4388static struct device_attribute ipr_adapter_handle_attr = {
4389 .attr = {
4390 .name = "adapter_handle",
4391 .mode = S_IRUSR,
4392 },
4393 .show = ipr_show_adapter_handle
4394};
4395
3e7ebdfa 4396/**
5adcbeb3
WB		 4397 * ipr_show_resource_path - Show the resource path or the resource address for
4398 * this device.
3e7ebdfa 4399 * @dev: device struct
46d74563 4400 * @attr: device attribute structure
3e7ebdfa
WB		 4401 * @buf: buffer
4402 *
4403 * Return value:
4404 * number of bytes printed to buffer
4405 **/
4406static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4407{
4408 struct scsi_device *sdev = to_scsi_device(dev);
4409 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4410 struct ipr_resource_entry *res;
4411 unsigned long lock_flags = 0;
4412 ssize_t len = -ENXIO;
4413 char buffer[IPR_MAX_RES_PATH_LENGTH];
4414
4415 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4416 res = (struct ipr_resource_entry *)sdev->hostdata;
5adcbeb3 4417 if (res && ioa_cfg->sis64)
3e7ebdfa 4418 len = snprintf(buf, PAGE_SIZE, "%s\n",
b3b3b407
BK		 4419 __ipr_format_res_path(res->res_path, buffer,
4420 sizeof(buffer)));
5adcbeb3
WB		 4421 else if (res)
4422 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4423 res->bus, res->target, res->lun);
4424
3e7ebdfa
WB		 4425 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4426 return len;
4427}
4428
4429static struct device_attribute ipr_resource_path_attr = {
4430 .attr = {
4431 .name = "resource_path",
75576bb9 4432 .mode = S_IRUGO,
3e7ebdfa
WB		 4433 },
4434 .show = ipr_show_resource_path
4435};
4436
46d74563
WB		 4437/**
4438 * ipr_show_device_id - Show the device_id for this device.
4439 * @dev: device struct
4440 * @attr: device attribute structure
4441 * @buf: buffer
4442 *
4443 * Return value:
4444 * number of bytes printed to buffer
4445 **/
4446static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4447{
4448 struct scsi_device *sdev = to_scsi_device(dev);
4449 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4450 struct ipr_resource_entry *res;
4451 unsigned long lock_flags = 0;
4452 ssize_t len = -ENXIO;
4453
4454 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4455 res = (struct ipr_resource_entry *)sdev->hostdata;
4456 if (res && ioa_cfg->sis64)
bb8647e8 4457 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", be64_to_cpu(res->dev_id));
46d74563
WB		 4458 else if (res)
4459 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4460
4461 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4462 return len;
4463}
4464
4465static struct device_attribute ipr_device_id_attr = {
4466 .attr = {
4467 .name = "device_id",
4468 .mode = S_IRUGO,
4469 },
4470 .show = ipr_show_device_id
4471};
4472
75576bb9
WB		 4473/**
4474 * ipr_show_resource_type - Show the resource type for this device.
4475 * @dev: device struct
46d74563 4476 * @attr: device attribute structure
75576bb9
WB		 4477 * @buf: buffer
4478 *
4479 * Return value:
4480 * number of bytes printed to buffer
4481 **/
4482static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4483{
4484 struct scsi_device *sdev = to_scsi_device(dev);
4485 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4486 struct ipr_resource_entry *res;
4487 unsigned long lock_flags = 0;
4488 ssize_t len = -ENXIO;
4489
4490 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4491 res = (struct ipr_resource_entry *)sdev->hostdata;
4492
4493 if (res)
4494 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4495
4496 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4497 return len;
4498}
4499
4500static struct device_attribute ipr_resource_type_attr = {
4501 .attr = {
4502 .name = "resource_type",
4503 .mode = S_IRUGO,
4504 },
4505 .show = ipr_show_resource_type
4506};
4507
f8ee25d7
WX		 4508/**
4509 * ipr_show_raw_mode - Show the adapter's raw mode
4510 * @dev: class device struct
4511 * @buf: buffer
4512 *
4513 * Return value:
4514 * number of bytes printed to buffer
4515 **/
4516static ssize_t ipr_show_raw_mode(struct device *dev,
4517 struct device_attribute *attr, char *buf)
4518{
4519 struct scsi_device *sdev = to_scsi_device(dev);
4520 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4521 struct ipr_resource_entry *res;
4522 unsigned long lock_flags = 0;
4523 ssize_t len;
4524
4525 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4526 res = (struct ipr_resource_entry *)sdev->hostdata;
4527 if (res)
4528 len = snprintf(buf, PAGE_SIZE, "%d\n", res->raw_mode);
4529 else
4530 len = -ENXIO;
4531 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4532 return len;
4533}
4534
4535/**
4536 * ipr_store_raw_mode - Change the adapter's raw mode
4537 * @dev: class device struct
4538 * @buf: buffer
4539 *
4540 * Return value:
4541 * number of bytes printed to buffer
4542 **/
4543static ssize_t ipr_store_raw_mode(struct device *dev,
4544 struct device_attribute *attr,
4545 const char *buf, size_t count)
4546{
4547 struct scsi_device *sdev = to_scsi_device(dev);
4548 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4549 struct ipr_resource_entry *res;
4550 unsigned long lock_flags = 0;
4551 ssize_t len;
4552
4553 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4554 res = (struct ipr_resource_entry *)sdev->hostdata;
4555 if (res) {
e35d7f27 4556 if (ipr_is_af_dasd_device(res)) {
f8ee25d7
WX		 4557 res->raw_mode = simple_strtoul(buf, NULL, 10);
4558 len = strlen(buf);
4559 if (res->sdev)
4560 sdev_printk(KERN_INFO, res->sdev, "raw mode is %s\n",
4561 res->raw_mode ? "enabled" : "disabled");
4562 } else
4563 len = -EINVAL;
4564 } else
4565 len = -ENXIO;
4566 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4567 return len;
4568}
4569
4570static struct device_attribute ipr_raw_mode_attr = {
4571 .attr = {
4572 .name = "raw_mode",
4573 .mode = S_IRUGO | S_IWUSR,
4574 },
4575 .show = ipr_show_raw_mode,
4576 .store = ipr_store_raw_mode
4577};
4578
1da177e4
LT		 4579static struct device_attribute *ipr_dev_attrs[] = {
4580 &ipr_adapter_handle_attr,
3e7ebdfa 4581 &ipr_resource_path_attr,
46d74563 4582 &ipr_device_id_attr,
75576bb9 4583 &ipr_resource_type_attr,
f8ee25d7 4584 &ipr_raw_mode_attr,
1da177e4
LT		 4585 NULL,
4586};
4587
4588/**
4589 * ipr_biosparam - Return the HSC mapping
4590 * @sdev: scsi device struct
4591 * @block_device: block device pointer
4592 * @capacity: capacity of the device
4593 * @parm: Array containing returned HSC values.
4594 *
4595 * This function generates the HSC parms that fdisk uses.
4596 * We want to make sure we return something that places partitions
4597 * on 4k boundaries for best performance with the IOA.
4598 *
4599 * Return value:
4600 * 0 on success
4601 **/
4602static int ipr_biosparam(struct scsi_device *sdev,
4603 struct block_device *block_device,
4604 sector_t capacity, int *parm)
4605{
4606 int heads, sectors;
4607 sector_t cylinders;
4608
4609 heads = 128;
4610 sectors = 32;
4611
4612 cylinders = capacity;
4613 sector_div(cylinders, (128 * 32));
4614
4615 /* return result */
4616 parm[0] = heads;
4617 parm[1] = sectors;
4618 parm[2] = cylinders;
4619
4620 return 0;
4621}
4622
35a39691
BK		 4623/**
4624 * ipr_find_starget - Find target based on bus/target.
4625 * @starget: scsi target struct
4626 *
4627 * Return value:
4628 * resource entry pointer if found / NULL if not found
4629 **/
4630static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4631{
4632 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4633 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4634 struct ipr_resource_entry *res;
4635
4636 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 4637 if ((res->bus == starget->channel) &&
0ee1d714 4638 (res->target == starget->id)) {
35a39691
BK		 4639 return res;
4640 }
4641 }
4642
4643 return NULL;
4644}
4645
4646static struct ata_port_info sata_port_info;
4647
4648/**
4649 * ipr_target_alloc - Prepare for commands to a SCSI target
4650 * @starget: scsi target struct
4651 *
4652 * If the device is a SATA device, this function allocates an
4653 * ATA port with libata, else it does nothing.
4654 *
4655 * Return value:
4656 * 0 on success / non-0 on failure
4657 **/
4658static int ipr_target_alloc(struct scsi_target *starget)
4659{
4660 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4661 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4662 struct ipr_sata_port *sata_port;
4663 struct ata_port *ap;
4664 struct ipr_resource_entry *res;
4665 unsigned long lock_flags;
4666
4667 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4668 res = ipr_find_starget(starget);
4669 starget->hostdata = NULL;
4670
4671 if (res && ipr_is_gata(res)) {
4672 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4673 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4674 if (!sata_port)
4675 return -ENOMEM;
4676
4677 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4678 if (ap) {
4679 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4680 sata_port->ioa_cfg = ioa_cfg;
4681 sata_port->ap = ap;
4682 sata_port->res = res;
4683
4684 res->sata_port = sata_port;
4685 ap->private_data = sata_port;
4686 starget->hostdata = sata_port;
4687 } else {
4688 kfree(sata_port);
4689 return -ENOMEM;
4690 }
4691 }
4692 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4693
4694 return 0;
4695}
4696
4697/**
4698 * ipr_target_destroy - Destroy a SCSI target
4699 * @starget: scsi target struct
4700 *
4701 * If the device was a SATA device, this function frees the libata
4702 * ATA port, else it does nothing.
4703 *
4704 **/
4705static void ipr_target_destroy(struct scsi_target *starget)
4706{
4707 struct ipr_sata_port *sata_port = starget->hostdata;
3e7ebdfa
WB		 4708 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4709 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4710
4711 if (ioa_cfg->sis64) {
0ee1d714
BK		 4712 if (!ipr_find_starget(starget)) {
4713 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4714 clear_bit(starget->id, ioa_cfg->array_ids);
4715 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4716 clear_bit(starget->id, ioa_cfg->vset_ids);
4717 else if (starget->channel == 0)
4718 clear_bit(starget->id, ioa_cfg->target_ids);
4719 }
3e7ebdfa 4720 }
35a39691
BK		 4721
4722 if (sata_port) {
4723 starget->hostdata = NULL;
4724 ata_sas_port_destroy(sata_port->ap);
4725 kfree(sata_port);
4726 }
4727}
4728
4729/**
4730 * ipr_find_sdev - Find device based on bus/target/lun.
4731 * @sdev: scsi device struct
4732 *
4733 * Return value:
4734 * resource entry pointer if found / NULL if not found
4735 **/
4736static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4737{
4738 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4739 struct ipr_resource_entry *res;
4740
4741 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa
WB		 4742 if ((res->bus == sdev->channel) &&
4743 (res->target == sdev->id) &&
4744 (res->lun == sdev->lun))
35a39691
BK		 4745 return res;
4746 }
4747
4748 return NULL;
4749}
4750
1da177e4
LT		 4751/**
4752 * ipr_slave_destroy - Unconfigure a SCSI device
4753 * @sdev: scsi device struct
4754 *
4755 * Return value:
4756 * nothing
4757 **/
4758static void ipr_slave_destroy(struct scsi_device *sdev)
4759{
4760 struct ipr_resource_entry *res;
4761 struct ipr_ioa_cfg *ioa_cfg;
4762 unsigned long lock_flags = 0;
4763
4764 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4765
4766 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4767 res = (struct ipr_resource_entry *) sdev->hostdata;
4768 if (res) {
35a39691 4769 if (res->sata_port)
3e4ec344 4770 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
1da177e4
LT		 4771 sdev->hostdata = NULL;
4772 res->sdev = NULL;
35a39691 4773 res->sata_port = NULL;
1da177e4
LT		 4774 }
4775 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4776}
4777
4778/**
4779 * ipr_slave_configure - Configure a SCSI device
4780 * @sdev: scsi device struct
4781 *
4782 * This function configures the specified scsi device.
4783 *
4784 * Return value:
4785 * 0 on success
4786 **/
4787static int ipr_slave_configure(struct scsi_device *sdev)
4788{
4789 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4790 struct ipr_resource_entry *res;
dd406ef8 4791 struct ata_port *ap = NULL;
1da177e4 4792 unsigned long lock_flags = 0;
3e7ebdfa 4793 char buffer[IPR_MAX_RES_PATH_LENGTH];
1da177e4
LT		 4794
4795 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4796 res = sdev->hostdata;
4797 if (res) {
4798 if (ipr_is_af_dasd_device(res))
4799 sdev->type = TYPE_RAID;
0726ce26 4800 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
1da177e4 4801 sdev->scsi_level = 4;
0726ce26
BK		 4802 sdev->no_uld_attach = 1;
4803 }
1da177e4 4804 if (ipr_is_vset_device(res)) {
60654e25 4805 sdev->scsi_level = SCSI_SPC_3;
242f9dcb
JA		 4806 blk_queue_rq_timeout(sdev->request_queue,
4807 IPR_VSET_RW_TIMEOUT);
086fa5ff 4808 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
1da177e4 4809 }
dd406ef8
BK		 4810 if (ipr_is_gata(res) && res->sata_port)
4811 ap = res->sata_port->ap;
4812 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4813
4814 if (ap) {
db5ed4df 4815 scsi_change_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN);
dd406ef8 4816 ata_sas_slave_configure(sdev, ap);
c8b09f6f
CH		 4817 }
4818
3e7ebdfa
WB		 4819 if (ioa_cfg->sis64)
4820 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
b3b3b407
BK		 4821 ipr_format_res_path(ioa_cfg,
4822 res->res_path, buffer, sizeof(buffer)));
dd406ef8 4823 return 0;
1da177e4
LT		 4824 }
4825 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4826 return 0;
4827}
4828
35a39691
BK		 4829/**
4830 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4831 * @sdev: scsi device struct
4832 *
4833 * This function initializes an ATA port so that future commands
4834 * sent through queuecommand will work.
4835 *
4836 * Return value:
4837 * 0 on success
4838 **/
4839static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4840{
4841 struct ipr_sata_port *sata_port = NULL;
4842 int rc = -ENXIO;
4843
4844 ENTER;
4845 if (sdev->sdev_target)
4846 sata_port = sdev->sdev_target->hostdata;
b2024459 4847 if (sata_port) {
35a39691 4848 rc = ata_sas_port_init(sata_port->ap);
b2024459
DW		 4849 if (rc == 0)
4850 rc = ata_sas_sync_probe(sata_port->ap);
4851 }
4852
35a39691
BK		 4853 if (rc)
4854 ipr_slave_destroy(sdev);
4855
4856 LEAVE;
4857 return rc;
4858}
4859
1da177e4
LT		 4860/**
4861 * ipr_slave_alloc - Prepare for commands to a device.
4862 * @sdev: scsi device struct
4863 *
4864 * This function saves a pointer to the resource entry
4865 * in the scsi device struct if the device exists. We
4866 * can then use this pointer in ipr_queuecommand when
4867 * handling new commands.
4868 *
4869 * Return value:
692aebfc 4870 * 0 on success / -ENXIO if device does not exist
1da177e4
LT		 4871 **/
4872static int ipr_slave_alloc(struct scsi_device *sdev)
4873{
4874 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4875 struct ipr_resource_entry *res;
4876 unsigned long lock_flags;
692aebfc 4877 int rc = -ENXIO;
1da177e4
LT		 4878
4879 sdev->hostdata = NULL;
4880
4881 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4882
35a39691
BK		 4883 res = ipr_find_sdev(sdev);
4884 if (res) {
4885 res->sdev = sdev;
4886 res->add_to_ml = 0;
4887 res->in_erp = 0;
4888 sdev->hostdata = res;
4889 if (!ipr_is_naca_model(res))
4890 res->needs_sync_complete = 1;
4891 rc = 0;
4892 if (ipr_is_gata(res)) {
4893 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4894 return ipr_ata_slave_alloc(sdev);
1da177e4
LT		 4895 }
4896 }
4897
4898 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4899
692aebfc 4900 return rc;
1da177e4
LT		 4901}
4902
6cdb0817
BK		 4903/**
4904 * ipr_match_lun - Match function for specified LUN
4905 * @ipr_cmd: ipr command struct
4906 * @device: device to match (sdev)
4907 *
4908 * Returns:
4909 * 1 if command matches sdev / 0 if command does not match sdev
4910 **/
4911static int ipr_match_lun(struct ipr_cmnd *ipr_cmd, void *device)
4912{
4913 if (ipr_cmd->scsi_cmd && ipr_cmd->scsi_cmd->device == device)
4914 return 1;
4915 return 0;
4916}
4917
4918/**
4919 * ipr_wait_for_ops - Wait for matching commands to complete
4920 * @ipr_cmd: ipr command struct
4921 * @device: device to match (sdev)
4922 * @match: match function to use
4923 *
4924 * Returns:
4925 * SUCCESS / FAILED
4926 **/
4927static int ipr_wait_for_ops(struct ipr_ioa_cfg *ioa_cfg, void *device,
4928 int (*match)(struct ipr_cmnd *, void *))
4929{
4930 struct ipr_cmnd *ipr_cmd;
4931 int wait;
4932 unsigned long flags;
4933 struct ipr_hrr_queue *hrrq;
4934 signed long timeout = IPR_ABORT_TASK_TIMEOUT;
4935 DECLARE_COMPLETION_ONSTACK(comp);
4936
4937 ENTER;
4938 do {
4939 wait = 0;
4940
4941 for_each_hrrq(hrrq, ioa_cfg) {
4942 spin_lock_irqsave(hrrq->lock, flags);
4943 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
4944 if (match(ipr_cmd, device)) {
4945 ipr_cmd->eh_comp = &comp;
4946 wait++;
4947 }
4948 }
4949 spin_unlock_irqrestore(hrrq->lock, flags);
4950 }
4951
4952 if (wait) {
4953 timeout = wait_for_completion_timeout(&comp, timeout);
4954
4955 if (!timeout) {
4956 wait = 0;
4957
4958 for_each_hrrq(hrrq, ioa_cfg) {
4959 spin_lock_irqsave(hrrq->lock, flags);
4960 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
4961 if (match(ipr_cmd, device)) {
4962 ipr_cmd->eh_comp = NULL;
4963 wait++;
4964 }
4965 }
4966 spin_unlock_irqrestore(hrrq->lock, flags);
4967 }
4968
4969 if (wait)
4970 dev_err(&ioa_cfg->pdev->dev, "Timed out waiting for aborted commands\n");
4971 LEAVE;
4972 return wait ? FAILED : SUCCESS;
4973 }
4974 }
4975 } while (wait);
4976
4977 LEAVE;
4978 return SUCCESS;
4979}
4980
70233ac5 4981static int ipr_eh_host_reset(struct scsi_cmnd *cmd)
1da177e4
LT		 4982{
4983 struct ipr_ioa_cfg *ioa_cfg;
70233ac5 4984 unsigned long lock_flags = 0;
4985 int rc = SUCCESS;
1da177e4
LT		 4986
4987 ENTER;
70233ac5 4988 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
4989 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1da177e4 4990
96b04db9 4991 if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
70233ac5 4992 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
a92fa25c
KSS		 4993 dev_err(&ioa_cfg->pdev->dev,
4994 "Adapter being reset as a result of error recovery.\n");
1da177e4 4995
a92fa25c
KSS		 4996 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4997 ioa_cfg->sdt_state = GET_DUMP;
4998 }
1da177e4 4999
70233ac5 5000 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5001 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5002 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
df0ae249 5003
70233ac5 5004 /* If we got hit with a host reset while we were already resetting
5005 the adapter for some reason, and the reset failed. */
5006 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
5007 ipr_trace;
5008 rc = FAILED;
5009 }
df0ae249 5010
70233ac5 5011 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5012 LEAVE;
df0ae249
JG		 5013 return rc;
5014}
5015
c6513096
BK		 5016/**
5017 * ipr_device_reset - Reset the device
5018 * @ioa_cfg: ioa config struct
5019 * @res: resource entry struct
5020 *
5021 * This function issues a device reset to the affected device.
5022 * If the device is a SCSI device, a LUN reset will be sent
5023 * to the device first. If that does not work, a target reset
35a39691
BK		 5024 * will be sent. If the device is a SATA device, a PHY reset will
5025 * be sent.
c6513096
BK		 5026 *
5027 * Return value:
5028 * 0 on success / non-zero on failure
5029 **/
5030static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
5031 struct ipr_resource_entry *res)
5032{
5033 struct ipr_cmnd *ipr_cmd;
5034 struct ipr_ioarcb *ioarcb;
5035 struct ipr_cmd_pkt *cmd_pkt;
35a39691 5036 struct ipr_ioarcb_ata_regs *regs;
c6513096
BK		 5037 u32 ioasc;
5038
5039 ENTER;
5040 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5041 ioarcb = &ipr_cmd->ioarcb;
5042 cmd_pkt = &ioarcb->cmd_pkt;
a32c055f
WB		 5043
5044 if (ipr_cmd->ioa_cfg->sis64) {
5045 regs = &ipr_cmd->i.ata_ioadl.regs;
5046 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
5047 } else
5048 regs = &ioarcb->u.add_data.u.regs;
c6513096 5049
3e7ebdfa 5050 ioarcb->res_handle = res->res_handle;
c6513096
BK		 5051 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5052 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
35a39691
BK		 5053 if (ipr_is_gata(res)) {
5054 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
a32c055f 5055 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
35a39691
BK		 5056 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5057 }
c6513096
BK		 5058
5059 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
96d21f00 5060 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
05a6538a 5061 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
96d21f00
WB		 5062 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
5063 if (ipr_cmd->ioa_cfg->sis64)
5064 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
5065 sizeof(struct ipr_ioasa_gata));
5066 else
5067 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
5068 sizeof(struct ipr_ioasa_gata));
5069 }
c6513096
BK		 5070
5071 LEAVE;
203fa3fe 5072 return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0;
c6513096
BK		 5073}
5074
35a39691
BK		 5075/**
5076 * ipr_sata_reset - Reset the SATA port
cc0680a5 5077 * @link: SATA link to reset
35a39691
BK		 5078 * @classes: class of the attached device
5079 *
cc0680a5 5080 * This function issues a SATA phy reset to the affected ATA link.
35a39691
BK		 5081 *
5082 * Return value:
5083 * 0 on success / non-zero on failure
5084 **/
cc0680a5 5085static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
120bda35 5086 unsigned long deadline)
35a39691 5087{
cc0680a5 5088 struct ipr_sata_port *sata_port = link->ap->private_data;
35a39691
BK		 5089 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5090 struct ipr_resource_entry *res;
5091 unsigned long lock_flags = 0;
5092 int rc = -ENXIO;
5093
5094 ENTER;
5095 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 5096 while (ioa_cfg->in_reset_reload) {
73d98ff0
BK		 5097 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5098 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5099 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5100 }
5101
35a39691
BK		 5102 res = sata_port->res;
5103 if (res) {
5104 rc = ipr_device_reset(ioa_cfg, res);
3e7ebdfa 5105 *classes = res->ata_class;
35a39691
BK		 5106 }
5107
5108 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5109 LEAVE;
5110 return rc;
5111}
5112
1da177e4
LT		 5113/**
5114 * ipr_eh_dev_reset - Reset the device
5115 * @scsi_cmd: scsi command struct
5116 *
5117 * This function issues a device reset to the affected device.
5118 * A LUN reset will be sent to the device first. If that does
5119 * not work, a target reset will be sent.
5120 *
5121 * Return value:
5122 * SUCCESS / FAILED
5123 **/
203fa3fe 5124static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 5125{
5126 struct ipr_cmnd *ipr_cmd;
5127 struct ipr_ioa_cfg *ioa_cfg;
5128 struct ipr_resource_entry *res;
35a39691
BK		 5129 struct ata_port *ap;
5130 int rc = 0;
05a6538a 5131 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 5132
5133 ENTER;
5134 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5135 res = scsi_cmd->device->hostdata;
5136
eeb88307 5137 if (!res)
1da177e4
LT		 5138 return FAILED;
5139
5140 /*
5141 * If we are currently going through reset/reload, return failed. This will force the
5142 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
5143 * reset to complete
5144 */
5145 if (ioa_cfg->in_reset_reload)
5146 return FAILED;
56d6aa33 5147 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
1da177e4
LT		 5148 return FAILED;
5149
05a6538a 5150 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5151 spin_lock(&hrrq->_lock);
05a6538a 5152 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5153 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
5154 if (ipr_cmd->scsi_cmd)
5155 ipr_cmd->done = ipr_scsi_eh_done;
5156 if (ipr_cmd->qc)
5157 ipr_cmd->done = ipr_sata_eh_done;
5158 if (ipr_cmd->qc &&
5159 !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
5160 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
5161 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
5162 }
7402ecef 5163 }
1da177e4 5164 }
56d6aa33 5165 spin_unlock(&hrrq->_lock);
1da177e4 5166 }
1da177e4 5167 res->resetting_device = 1;
fb3ed3cb 5168 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
35a39691
BK		 5169
5170 if (ipr_is_gata(res) && res->sata_port) {
5171 ap = res->sata_port->ap;
5172 spin_unlock_irq(scsi_cmd->device->host->host_lock);
a1efdaba 5173 ata_std_error_handler(ap);
35a39691 5174 spin_lock_irq(scsi_cmd->device->host->host_lock);
5af23d26 5175
05a6538a 5176 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5177 spin_lock(&hrrq->_lock);
05a6538a 5178 list_for_each_entry(ipr_cmd,
5179 &hrrq->hrrq_pending_q, queue) {
5180 if (ipr_cmd->ioarcb.res_handle ==
5181 res->res_handle) {
5182 rc = -EIO;
5183 break;
5184 }
5af23d26 5185 }
56d6aa33 5186 spin_unlock(&hrrq->_lock);
5af23d26 5187 }
35a39691
BK		 5188 } else
5189 rc = ipr_device_reset(ioa_cfg, res);
1da177e4 5190 res->resetting_device = 0;
0b1f8d44 5191 res->reset_occurred = 1;
1da177e4 5192
1da177e4 5193 LEAVE;
203fa3fe 5194 return rc ? FAILED : SUCCESS;
1da177e4
LT		 5195}
5196
203fa3fe 5197static int ipr_eh_dev_reset(struct scsi_cmnd *cmd)
94d0e7b8
JG		 5198{
5199 int rc;
6cdb0817
BK		 5200 struct ipr_ioa_cfg *ioa_cfg;
5201
5202 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
94d0e7b8
JG		 5203
5204 spin_lock_irq(cmd->device->host->host_lock);
5205 rc = __ipr_eh_dev_reset(cmd);
5206 spin_unlock_irq(cmd->device->host->host_lock);
5207
6cdb0817
BK		 5208 if (rc == SUCCESS)
5209 rc = ipr_wait_for_ops(ioa_cfg, cmd->device, ipr_match_lun);
5210
94d0e7b8
JG		 5211 return rc;
5212}
5213
1da177e4
LT		 5214/**
5215 * ipr_bus_reset_done - Op done function for bus reset.
5216 * @ipr_cmd: ipr command struct
5217 *
5218 * This function is the op done function for a bus reset
5219 *
5220 * Return value:
5221 * none
5222 **/
5223static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
5224{
5225 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5226 struct ipr_resource_entry *res;
5227
5228 ENTER;
3e7ebdfa
WB		 5229 if (!ioa_cfg->sis64)
5230 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5231 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
5232 scsi_report_bus_reset(ioa_cfg->host, res->bus);
5233 break;
5234 }
1da177e4 5235 }
1da177e4
LT		 5236
5237 /*
5238 * If abort has not completed, indicate the reset has, else call the
5239 * abort's done function to wake the sleeping eh thread
5240 */
5241 if (ipr_cmd->sibling->sibling)
5242 ipr_cmd->sibling->sibling = NULL;
5243 else
5244 ipr_cmd->sibling->done(ipr_cmd->sibling);
5245
05a6538a 5246 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 5247 LEAVE;
5248}
5249
5250/**
5251 * ipr_abort_timeout - An abort task has timed out
5252 * @ipr_cmd: ipr command struct
5253 *
5254 * This function handles when an abort task times out. If this
5255 * happens we issue a bus reset since we have resources tied
5256 * up that must be freed before returning to the midlayer.
5257 *
5258 * Return value:
5259 * none
5260 **/
5261static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
5262{
5263 struct ipr_cmnd *reset_cmd;
5264 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5265 struct ipr_cmd_pkt *cmd_pkt;
5266 unsigned long lock_flags = 0;
5267
5268 ENTER;
5269 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5270 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
5271 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5272 return;
5273 }
5274
fb3ed3cb 5275 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
1da177e4
LT		 5276 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5277 ipr_cmd->sibling = reset_cmd;
5278 reset_cmd->sibling = ipr_cmd;
5279 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
5280 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
5281 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5282 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5283 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
5284
5285 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5286 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5287 LEAVE;
5288}
5289
5290/**
5291 * ipr_cancel_op - Cancel specified op
5292 * @scsi_cmd: scsi command struct
5293 *
5294 * This function cancels specified op.
5295 *
5296 * Return value:
5297 * SUCCESS / FAILED
5298 **/
203fa3fe 5299static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 5300{
5301 struct ipr_cmnd *ipr_cmd;
5302 struct ipr_ioa_cfg *ioa_cfg;
5303 struct ipr_resource_entry *res;
5304 struct ipr_cmd_pkt *cmd_pkt;
a92fa25c 5305 u32 ioasc, int_reg;
1da177e4 5306 int op_found = 0;
05a6538a 5307 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 5308
5309 ENTER;
5310 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5311 res = scsi_cmd->device->hostdata;
5312
8fa728a2
JG		 5313 /* If we are currently going through reset/reload, return failed.
5314 * This will force the mid-layer to call ipr_eh_host_reset,
5315 * which will then go to sleep and wait for the reset to complete
5316 */
56d6aa33 5317 if (ioa_cfg->in_reset_reload ||
5318 ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
8fa728a2 5319 return FAILED;
a92fa25c
KSS		 5320 if (!res)
5321 return FAILED;
5322
5323 /*
5324 * If we are aborting a timed out op, chances are that the timeout was caused
5325 * by a still not detected EEH error. In such cases, reading a register will
5326 * trigger the EEH recovery infrastructure.
5327 */
5328 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5329
5330 if (!ipr_is_gscsi(res))
1da177e4
LT		 5331 return FAILED;
5332
05a6538a 5333 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5334 spin_lock(&hrrq->_lock);
05a6538a 5335 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5336 if (ipr_cmd->scsi_cmd == scsi_cmd) {
5337 ipr_cmd->done = ipr_scsi_eh_done;
5338 op_found = 1;
5339 break;
5340 }
1da177e4 5341 }
56d6aa33 5342 spin_unlock(&hrrq->_lock);
1da177e4
LT		 5343 }
5344
5345 if (!op_found)
5346 return SUCCESS;
5347
5348 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3e7ebdfa 5349 ipr_cmd->ioarcb.res_handle = res->res_handle;
1da177e4
LT		 5350 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5351 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5352 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5353 ipr_cmd->u.sdev = scsi_cmd->device;
5354
fb3ed3cb
BK		 5355 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
5356 scsi_cmd->cmnd[0]);
1da177e4 5357 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
96d21f00 5358 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5359
5360 /*
5361 * If the abort task timed out and we sent a bus reset, we will get
5362 * one the following responses to the abort
5363 */
5364 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
5365 ioasc = 0;
5366 ipr_trace;
5367 }
5368
c4ee22a3 5369 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
ee0a90fa
BK		 5370 if (!ipr_is_naca_model(res))
5371 res->needs_sync_complete = 1;
1da177e4
LT		 5372
5373 LEAVE;
203fa3fe 5374 return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS;
1da177e4
LT		 5375}
5376
5377/**
5378 * ipr_eh_abort - Abort a single op
5379 * @scsi_cmd: scsi command struct
5380 *
5381 * Return value:
f688f96d
BK		 5382 * 0 if scan in progress / 1 if scan is complete
5383 **/
5384static int ipr_scan_finished(struct Scsi_Host *shost, unsigned long elapsed_time)
5385{
5386 unsigned long lock_flags;
5387 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
5388 int rc = 0;
5389
5390 spin_lock_irqsave(shost->host_lock, lock_flags);
5391 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead || ioa_cfg->scan_done)
5392 rc = 1;
5393 if ((elapsed_time/HZ) > (ioa_cfg->transop_timeout * 2))
5394 rc = 1;
5395 spin_unlock_irqrestore(shost->host_lock, lock_flags);
5396 return rc;
5397}
5398
5399/**
5400 * ipr_eh_host_reset - Reset the host adapter
5401 * @scsi_cmd: scsi command struct
5402 *
5403 * Return value:
1da177e4
LT		 5404 * SUCCESS / FAILED
5405 **/
203fa3fe 5406static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd)
1da177e4 5407{
8fa728a2
JG		 5408 unsigned long flags;
5409 int rc;
6cdb0817 5410 struct ipr_ioa_cfg *ioa_cfg;
1da177e4
LT		 5411
5412 ENTER;
1da177e4 5413
6cdb0817
BK		 5414 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5415
8fa728a2
JG		 5416 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
5417 rc = ipr_cancel_op(scsi_cmd);
5418 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
1da177e4 5419
6cdb0817
BK		 5420 if (rc == SUCCESS)
5421 rc = ipr_wait_for_ops(ioa_cfg, scsi_cmd->device, ipr_match_lun);
1da177e4 5422 LEAVE;
8fa728a2 5423 return rc;
1da177e4
LT		 5424}
5425
5426/**
5427 * ipr_handle_other_interrupt - Handle "other" interrupts
5428 * @ioa_cfg: ioa config struct
634651fa 5429 * @int_reg: interrupt register
1da177e4
LT		 5430 *
5431 * Return value:
5432 * IRQ_NONE / IRQ_HANDLED
5433 **/
634651fa 5434static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
630ad831 5435 u32 int_reg)
1da177e4
LT		 5436{
5437 irqreturn_t rc = IRQ_HANDLED;
7dacb64f 5438 u32 int_mask_reg;
56d6aa33 5439
7dacb64f
WB		 5440 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5441 int_reg &= ~int_mask_reg;
5442
5443 /* If an interrupt on the adapter did not occur, ignore it.
5444 * Or in the case of SIS 64, check for a stage change interrupt.
5445 */
5446 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5447 if (ioa_cfg->sis64) {
5448 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5449 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5450 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5451
5452 /* clear stage change */
5453 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5454 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5455 list_del(&ioa_cfg->reset_cmd->queue);
5456 del_timer(&ioa_cfg->reset_cmd->timer);
5457 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5458 return IRQ_HANDLED;
5459 }
5460 }
5461
5462 return IRQ_NONE;
5463 }
1da177e4
LT		 5464
5465 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5466 /* Mask the interrupt */
5467 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
1da177e4
LT		 5468 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5469
5470 list_del(&ioa_cfg->reset_cmd->queue);
5471 del_timer(&ioa_cfg->reset_cmd->timer);
5472 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
7dacb64f 5473 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
7dd21308
BK		 5474 if (ioa_cfg->clear_isr) {
5475 if (ipr_debug && printk_ratelimit())
5476 dev_err(&ioa_cfg->pdev->dev,
5477 "Spurious interrupt detected. 0x%08X\n", int_reg);
5478 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5479 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5480 return IRQ_NONE;
5481 }
1da177e4
LT		 5482 } else {
5483 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5484 ioa_cfg->ioa_unit_checked = 1;
05a6538a 5485 else if (int_reg & IPR_PCII_NO_HOST_RRQ)
5486 dev_err(&ioa_cfg->pdev->dev,
5487 "No Host RRQ. 0x%08X\n", int_reg);
1da177e4
LT		 5488 else
5489 dev_err(&ioa_cfg->pdev->dev,
5490 "Permanent IOA failure. 0x%08X\n", int_reg);
5491
5492 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5493 ioa_cfg->sdt_state = GET_DUMP;
5494
5495 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5496 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5497 }
56d6aa33 5498
1da177e4
LT		 5499 return rc;
5500}
5501
3feeb89d
WB		 5502/**
5503 * ipr_isr_eh - Interrupt service routine error handler
5504 * @ioa_cfg: ioa config struct
5505 * @msg: message to log
5506 *
5507 * Return value:
5508 * none
5509 **/
05a6538a 5510static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg, u16 number)
3feeb89d
WB		 5511{
5512 ioa_cfg->errors_logged++;
05a6538a 5513 dev_err(&ioa_cfg->pdev->dev, "%s %d\n", msg, number);
3feeb89d
WB		 5514
5515 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5516 ioa_cfg->sdt_state = GET_DUMP;
5517
5518 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5519}
5520
b53d124a 5521static int ipr_process_hrrq(struct ipr_hrr_queue *hrr_queue, int budget,
05a6538a 5522 struct list_head *doneq)
5523{
5524 u32 ioasc;
5525 u16 cmd_index;
5526 struct ipr_cmnd *ipr_cmd;
5527 struct ipr_ioa_cfg *ioa_cfg = hrr_queue->ioa_cfg;
5528 int num_hrrq = 0;
5529
5530 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5531 if (!hrr_queue->allow_interrupts)
05a6538a 5532 return 0;
5533
5534 while ((be32_to_cpu(*hrr_queue->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5535 hrr_queue->toggle_bit) {
5536
5537 cmd_index = (be32_to_cpu(*hrr_queue->hrrq_curr) &
5538 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >>
5539 IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5540
5541 if (unlikely(cmd_index > hrr_queue->max_cmd_id ||
5542 cmd_index < hrr_queue->min_cmd_id)) {
5543 ipr_isr_eh(ioa_cfg,
5544 "Invalid response handle from IOA: ",
5545 cmd_index);
5546 break;
5547 }
5548
5549 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5550 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5551
5552 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5553
5554 list_move_tail(&ipr_cmd->queue, doneq);
5555
5556 if (hrr_queue->hrrq_curr < hrr_queue->hrrq_end) {
5557 hrr_queue->hrrq_curr++;
5558 } else {
5559 hrr_queue->hrrq_curr = hrr_queue->hrrq_start;
5560 hrr_queue->toggle_bit ^= 1u;
5561 }
5562 num_hrrq++;
b53d124a 5563 if (budget > 0 && num_hrrq >= budget)
5564 break;
05a6538a 5565 }
b53d124a 5566
05a6538a 5567 return num_hrrq;
5568}
b53d124a 5569
511cbce2 5570static int ipr_iopoll(struct irq_poll *iop, int budget)
b53d124a 5571{
5572 struct ipr_ioa_cfg *ioa_cfg;
5573 struct ipr_hrr_queue *hrrq;
5574 struct ipr_cmnd *ipr_cmd, *temp;
5575 unsigned long hrrq_flags;
5576 int completed_ops;
5577 LIST_HEAD(doneq);
5578
5579 hrrq = container_of(iop, struct ipr_hrr_queue, iopoll);
5580 ioa_cfg = hrrq->ioa_cfg;
5581
5582 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5583 completed_ops = ipr_process_hrrq(hrrq, budget, &doneq);
5584
5585 if (completed_ops < budget)
511cbce2 5586 irq_poll_complete(iop);
b53d124a 5587 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5588
5589 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5590 list_del(&ipr_cmd->queue);
5591 del_timer(&ipr_cmd->timer);
5592 ipr_cmd->fast_done(ipr_cmd);
5593 }
5594
5595 return completed_ops;
5596}
5597
1da177e4
LT		 5598/**
5599 * ipr_isr - Interrupt service routine
5600 * @irq: irq number
5601 * @devp: pointer to ioa config struct
1da177e4
LT		 5602 *
5603 * Return value:
5604 * IRQ_NONE / IRQ_HANDLED
5605 **/
7d12e780 5606static irqreturn_t ipr_isr(int irq, void *devp)
1da177e4 5607{
05a6538a 5608 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5609 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
56d6aa33 5610 unsigned long hrrq_flags = 0;
7dacb64f 5611 u32 int_reg = 0;
3feeb89d 5612 int num_hrrq = 0;
7dacb64f 5613 int irq_none = 0;
172cd6e1 5614 struct ipr_cmnd *ipr_cmd, *temp;
1da177e4 5615 irqreturn_t rc = IRQ_NONE;
172cd6e1 5616 LIST_HEAD(doneq);
1da177e4 5617
56d6aa33 5618 spin_lock_irqsave(hrrq->lock, hrrq_flags);
1da177e4 5619 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5620 if (!hrrq->allow_interrupts) {
5621 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4
LT		 5622 return IRQ_NONE;
5623 }
5624
1da177e4 5625 while (1) {
b53d124a 5626 if (ipr_process_hrrq(hrrq, -1, &doneq)) {
5627 rc = IRQ_HANDLED;
1da177e4 5628
b53d124a 5629 if (!ioa_cfg->clear_isr)
5630 break;
7dd21308 5631
1da177e4 5632 /* Clear the PCI interrupt */
a5442ba4 5633 num_hrrq = 0;
3feeb89d 5634 do {
b53d124a 5635 writel(IPR_PCII_HRRQ_UPDATED,
5636 ioa_cfg->regs.clr_interrupt_reg32);
7dacb64f 5637 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
3feeb89d 5638 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
b53d124a 5639 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
3feeb89d 5640
7dacb64f
WB		 5641 } else if (rc == IRQ_NONE && irq_none == 0) {
5642 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5643 irq_none++;
a5442ba4
WB		 5644 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5645 int_reg & IPR_PCII_HRRQ_UPDATED) {
b53d124a 5646 ipr_isr_eh(ioa_cfg,
5647 "Error clearing HRRQ: ", num_hrrq);
172cd6e1 5648 rc = IRQ_HANDLED;
b53d124a 5649 break;
1da177e4
LT		 5650 } else
5651 break;
5652 }
5653
5654 if (unlikely(rc == IRQ_NONE))
634651fa 5655 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
1da177e4 5656
56d6aa33 5657 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
172cd6e1
BK		 5658 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5659 list_del(&ipr_cmd->queue);
5660 del_timer(&ipr_cmd->timer);
5661 ipr_cmd->fast_done(ipr_cmd);
5662 }
05a6538a 5663 return rc;
5664}
5665
5666/**
5667 * ipr_isr_mhrrq - Interrupt service routine
5668 * @irq: irq number
5669 * @devp: pointer to ioa config struct
5670 *
5671 * Return value:
5672 * IRQ_NONE / IRQ_HANDLED
5673 **/
5674static irqreturn_t ipr_isr_mhrrq(int irq, void *devp)
5675{
5676 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
b53d124a 5677 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
56d6aa33 5678 unsigned long hrrq_flags = 0;
05a6538a 5679 struct ipr_cmnd *ipr_cmd, *temp;
5680 irqreturn_t rc = IRQ_NONE;
5681 LIST_HEAD(doneq);
172cd6e1 5682
56d6aa33 5683 spin_lock_irqsave(hrrq->lock, hrrq_flags);
05a6538a 5684
5685 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5686 if (!hrrq->allow_interrupts) {
5687 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 5688 return IRQ_NONE;
5689 }
5690
89f8b33c 5691 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 5692 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5693 hrrq->toggle_bit) {
ea51190c 5694 irq_poll_sched(&hrrq->iopoll);
b53d124a 5695 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5696 return IRQ_HANDLED;
5697 }
5698 } else {
5699 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5700 hrrq->toggle_bit)
05a6538a 5701
b53d124a 5702 if (ipr_process_hrrq(hrrq, -1, &doneq))
5703 rc = IRQ_HANDLED;
5704 }
05a6538a 5705
56d6aa33 5706 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 5707
5708 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5709 list_del(&ipr_cmd->queue);
5710 del_timer(&ipr_cmd->timer);
5711 ipr_cmd->fast_done(ipr_cmd);
5712 }
1da177e4
LT		 5713 return rc;
5714}
5715
a32c055f
WB		 5716/**
5717 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5718 * @ioa_cfg: ioa config struct
5719 * @ipr_cmd: ipr command struct
5720 *
5721 * Return value:
5722 * 0 on success / -1 on failure
5723 **/
5724static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5725 struct ipr_cmnd *ipr_cmd)
5726{
5727 int i, nseg;
5728 struct scatterlist *sg;
5729 u32 length;
5730 u32 ioadl_flags = 0;
5731 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5732 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5733 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5734
5735 length = scsi_bufflen(scsi_cmd);
5736 if (!length)
5737 return 0;
5738
5739 nseg = scsi_dma_map(scsi_cmd);
5740 if (nseg < 0) {
51f52a47 5741 if (printk_ratelimit())
d73341bf 5742 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
a32c055f
WB		 5743 return -1;
5744 }
5745
5746 ipr_cmd->dma_use_sg = nseg;
5747
438b0331 5748 ioarcb->data_transfer_length = cpu_to_be32(length);
b8803b1c
WB		 5749 ioarcb->ioadl_len =
5750 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
438b0331 5751
a32c055f
WB		 5752 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5753 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5754 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5755 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5756 ioadl_flags = IPR_IOADL_FLAGS_READ;
5757
5758 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5759 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5760 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5761 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5762 }
5763
5764 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5765 return 0;
5766}
5767
1da177e4
LT		 5768/**
5769 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5770 * @ioa_cfg: ioa config struct
5771 * @ipr_cmd: ipr command struct
5772 *
5773 * Return value:
5774 * 0 on success / -1 on failure
5775 **/
5776static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5777 struct ipr_cmnd *ipr_cmd)
5778{
63015bc9
FT		 5779 int i, nseg;
5780 struct scatterlist *sg;
1da177e4
LT		 5781 u32 length;
5782 u32 ioadl_flags = 0;
5783 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5784 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 5785 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4 5786
63015bc9
FT		 5787 length = scsi_bufflen(scsi_cmd);
5788 if (!length)
1da177e4
LT		 5789 return 0;
5790
63015bc9
FT		 5791 nseg = scsi_dma_map(scsi_cmd);
5792 if (nseg < 0) {
d73341bf 5793 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
63015bc9
FT		 5794 return -1;
5795 }
51b1c7e1 5796
63015bc9
FT		 5797 ipr_cmd->dma_use_sg = nseg;
5798
5799 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5800 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5801 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 5802 ioarcb->data_transfer_length = cpu_to_be32(length);
5803 ioarcb->ioadl_len =
63015bc9
FT		 5804 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5805 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5806 ioadl_flags = IPR_IOADL_FLAGS_READ;
5807 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5808 ioarcb->read_ioadl_len =
5809 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5810 }
1da177e4 5811
a32c055f
WB		 5812 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5813 ioadl = ioarcb->u.add_data.u.ioadl;
5814 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5815 offsetof(struct ipr_ioarcb, u.add_data));
63015bc9
FT		 5816 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5817 }
1da177e4 5818
63015bc9
FT		 5819 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5820 ioadl[i].flags_and_data_len =
5821 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5822 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
1da177e4
LT		 5823 }
5824
63015bc9
FT		 5825 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5826 return 0;
1da177e4
LT		 5827}
5828
1da177e4
LT		 5829/**
5830 * ipr_erp_done - Process completion of ERP for a device
5831 * @ipr_cmd: ipr command struct
5832 *
5833 * This function copies the sense buffer into the scsi_cmd
5834 * struct and pushes the scsi_done function.
5835 *
5836 * Return value:
5837 * nothing
5838 **/
5839static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5840{
5841 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5842 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 5843 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5844
5845 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5846 scsi_cmd->result |= (DID_ERROR << 16);
fb3ed3cb
BK		 5847 scmd_printk(KERN_ERR, scsi_cmd,
5848 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
1da177e4
LT		 5849 } else {
5850 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5851 SCSI_SENSE_BUFFERSIZE);
5852 }
5853
5854 if (res) {
ee0a90fa
BK		 5855 if (!ipr_is_naca_model(res))
5856 res->needs_sync_complete = 1;
1da177e4
LT		 5857 res->in_erp = 0;
5858 }
63015bc9 5859 scsi_dma_unmap(ipr_cmd->scsi_cmd);
05a6538a 5860 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 5861 scsi_cmd->scsi_done(scsi_cmd);
5862}
5863
5864/**
5865 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5866 * @ipr_cmd: ipr command struct
5867 *
5868 * Return value:
5869 * none
5870 **/
5871static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5872{
51b1c7e1 5873 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00 5874 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
a32c055f 5875 dma_addr_t dma_addr = ipr_cmd->dma_addr;
1da177e4
LT		 5876
5877 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
a32c055f 5878 ioarcb->data_transfer_length = 0;
1da177e4 5879 ioarcb->read_data_transfer_length = 0;
a32c055f 5880 ioarcb->ioadl_len = 0;
1da177e4 5881 ioarcb->read_ioadl_len = 0;
96d21f00
WB		 5882 ioasa->hdr.ioasc = 0;
5883 ioasa->hdr.residual_data_len = 0;
a32c055f
WB		 5884
5885 if (ipr_cmd->ioa_cfg->sis64)
5886 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5887 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5888 else {
5889 ioarcb->write_ioadl_addr =
5890 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5891 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5892 }
1da177e4
LT		 5893}
5894
5895/**
5896 * ipr_erp_request_sense - Send request sense to a device
5897 * @ipr_cmd: ipr command struct
5898 *
5899 * This function sends a request sense to a device as a result
5900 * of a check condition.
5901 *
5902 * Return value:
5903 * nothing
5904 **/
5905static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5906{
5907 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
96d21f00 5908 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5909
5910 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5911 ipr_erp_done(ipr_cmd);
5912 return;
5913 }
5914
5915 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5916
5917 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5918 cmd_pkt->cdb[0] = REQUEST_SENSE;
5919 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5920 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5921 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5922 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5923
a32c055f
WB		 5924 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5925 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 5926
5927 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5928 IPR_REQUEST_SENSE_TIMEOUT * 2);
5929}
5930
5931/**
5932 * ipr_erp_cancel_all - Send cancel all to a device
5933 * @ipr_cmd: ipr command struct
5934 *
5935 * This function sends a cancel all to a device to clear the
5936 * queue. If we are running TCQ on the device, QERR is set to 1,
5937 * which means all outstanding ops have been dropped on the floor.
5938 * Cancel all will return them to us.
5939 *
5940 * Return value:
5941 * nothing
5942 **/
5943static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5944{
5945 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5946 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5947 struct ipr_cmd_pkt *cmd_pkt;
5948
5949 res->in_erp = 1;
5950
5951 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5952
17ea0126 5953 if (!scsi_cmd->device->simple_tags) {
1da177e4
LT		 5954 ipr_erp_request_sense(ipr_cmd);
5955 return;
5956 }
5957
5958 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5959 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5960 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5961
5962 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5963 IPR_CANCEL_ALL_TIMEOUT);
5964}
5965
5966/**
5967 * ipr_dump_ioasa - Dump contents of IOASA
5968 * @ioa_cfg: ioa config struct
5969 * @ipr_cmd: ipr command struct
fe964d0a 5970 * @res: resource entry struct
1da177e4
LT		 5971 *
5972 * This function is invoked by the interrupt handler when ops
5973 * fail. It will log the IOASA if appropriate. Only called
5974 * for GPDD ops.
5975 *
5976 * Return value:
5977 * none
5978 **/
5979static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
fe964d0a 5980 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
1da177e4
LT		 5981{
5982 int i;
5983 u16 data_len;
b0692dd4 5984 u32 ioasc, fd_ioasc;
96d21f00 5985 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
1da177e4
LT		 5986 __be32 *ioasa_data = (__be32 *)ioasa;
5987 int error_index;
5988
96d21f00
WB		 5989 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5990 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 5991
5992 if (0 == ioasc)
5993 return;
5994
5995 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
5996 return;
5997
b0692dd4
BK		 5998 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
5999 error_index = ipr_get_error(fd_ioasc);
6000 else
6001 error_index = ipr_get_error(ioasc);
1da177e4
LT		 6002
6003 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
6004 /* Don't log an error if the IOA already logged one */
96d21f00 6005 if (ioasa->hdr.ilid != 0)
1da177e4
LT		 6006 return;
6007
cc9bd5d4
BK		 6008 if (!ipr_is_gscsi(res))
6009 return;
6010
1da177e4
LT		 6011 if (ipr_error_table[error_index].log_ioasa == 0)
6012 return;
6013 }
6014
fe964d0a 6015 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
1da177e4 6016
96d21f00
WB		 6017 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
6018 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
6019 data_len = sizeof(struct ipr_ioasa64);
6020 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
1da177e4 6021 data_len = sizeof(struct ipr_ioasa);
1da177e4
LT		 6022
6023 ipr_err("IOASA Dump:\n");
6024
6025 for (i = 0; i < data_len / 4; i += 4) {
6026 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
6027 be32_to_cpu(ioasa_data[i]),
6028 be32_to_cpu(ioasa_data[i+1]),
6029 be32_to_cpu(ioasa_data[i+2]),
6030 be32_to_cpu(ioasa_data[i+3]));
6031 }
6032}
6033
6034/**
6035 * ipr_gen_sense - Generate SCSI sense data from an IOASA
6036 * @ioasa: IOASA
6037 * @sense_buf: sense data buffer
6038 *
6039 * Return value:
6040 * none
6041 **/
6042static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
6043{
6044 u32 failing_lba;
6045 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
6046 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
96d21f00
WB		 6047 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6048 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
1da177e4
LT		 6049
6050 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
6051
6052 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
6053 return;
6054
6055 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
6056
6057 if (ipr_is_vset_device(res) &&
6058 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
6059 ioasa->u.vset.failing_lba_hi != 0) {
6060 sense_buf[0] = 0x72;
6061 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
6062 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
6063 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
6064
6065 sense_buf[7] = 12;
6066 sense_buf[8] = 0;
6067 sense_buf[9] = 0x0A;
6068 sense_buf[10] = 0x80;
6069
6070 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
6071
6072 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
6073 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
6074 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
6075 sense_buf[15] = failing_lba & 0x000000ff;
6076
6077 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6078
6079 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
6080 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
6081 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
6082 sense_buf[19] = failing_lba & 0x000000ff;
6083 } else {
6084 sense_buf[0] = 0x70;
6085 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
6086 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
6087 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
6088
6089 /* Illegal request */
6090 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
96d21f00 6091 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
1da177e4
LT		 6092 sense_buf[7] = 10; /* additional length */
6093
6094 /* IOARCB was in error */
6095 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
6096 sense_buf[15] = 0xC0;
6097 else /* Parameter data was invalid */
6098 sense_buf[15] = 0x80;
6099
6100 sense_buf[16] =
6101 ((IPR_FIELD_POINTER_MASK &
96d21f00 6102 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
1da177e4
LT		 6103 sense_buf[17] =
6104 (IPR_FIELD_POINTER_MASK &
96d21f00 6105 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
1da177e4
LT		 6106 } else {
6107 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
6108 if (ipr_is_vset_device(res))
6109 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6110 else
6111 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
6112
6113 sense_buf[0] |= 0x80; /* Or in the Valid bit */
6114 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
6115 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
6116 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
6117 sense_buf[6] = failing_lba & 0x000000ff;
6118 }
6119
6120 sense_buf[7] = 6; /* additional length */
6121 }
6122 }
6123}
6124
ee0a90fa
BK		 6125/**
6126 * ipr_get_autosense - Copy autosense data to sense buffer
6127 * @ipr_cmd: ipr command struct
6128 *
6129 * This function copies the autosense buffer to the buffer
6130 * in the scsi_cmd, if there is autosense available.
6131 *
6132 * Return value:
6133 * 1 if autosense was available / 0 if not
6134 **/
6135static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
6136{
96d21f00
WB		 6137 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6138 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
ee0a90fa 6139
96d21f00 6140 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
ee0a90fa
BK		 6141 return 0;
6142
96d21f00
WB		 6143 if (ipr_cmd->ioa_cfg->sis64)
6144 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
6145 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
6146 SCSI_SENSE_BUFFERSIZE));
6147 else
6148 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
6149 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
6150 SCSI_SENSE_BUFFERSIZE));
ee0a90fa
BK		 6151 return 1;
6152}
6153
1da177e4
LT		 6154/**
6155 * ipr_erp_start - Process an error response for a SCSI op
6156 * @ioa_cfg: ioa config struct
6157 * @ipr_cmd: ipr command struct
6158 *
6159 * This function determines whether or not to initiate ERP
6160 * on the affected device.
6161 *
6162 * Return value:
6163 * nothing
6164 **/
6165static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
6166 struct ipr_cmnd *ipr_cmd)
6167{
6168 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6169 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 6170 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
8a048994 6171 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 6172
6173 if (!res) {
6174 ipr_scsi_eh_done(ipr_cmd);
6175 return;
6176 }
6177
8a048994 6178 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
1da177e4
LT		 6179 ipr_gen_sense(ipr_cmd);
6180
cc9bd5d4
BK		 6181 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6182
8a048994 6183 switch (masked_ioasc) {
1da177e4 6184 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
ee0a90fa
BK		 6185 if (ipr_is_naca_model(res))
6186 scsi_cmd->result |= (DID_ABORT << 16);
6187 else
6188 scsi_cmd->result |= (DID_IMM_RETRY << 16);
1da177e4
LT		 6189 break;
6190 case IPR_IOASC_IR_RESOURCE_HANDLE:
b0df54bb 6191 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
1da177e4
LT		 6192 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6193 break;
6194 case IPR_IOASC_HW_SEL_TIMEOUT:
6195 scsi_cmd->result |= (DID_NO_CONNECT << 16);
ee0a90fa
BK		 6196 if (!ipr_is_naca_model(res))
6197 res->needs_sync_complete = 1;
1da177e4
LT		 6198 break;
6199 case IPR_IOASC_SYNC_REQUIRED:
6200 if (!res->in_erp)
6201 res->needs_sync_complete = 1;
6202 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6203 break;
6204 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
b0df54bb 6205 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
1da177e4
LT		 6206 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
6207 break;
6208 case IPR_IOASC_BUS_WAS_RESET:
6209 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
6210 /*
6211 * Report the bus reset and ask for a retry. The device
6212 * will give CC/UA the next command.
6213 */
6214 if (!res->resetting_device)
6215 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
6216 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa
BK		 6217 if (!ipr_is_naca_model(res))
6218 res->needs_sync_complete = 1;
1da177e4
LT		 6219 break;
6220 case IPR_IOASC_HW_DEV_BUS_STATUS:
6221 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
6222 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
ee0a90fa
BK		 6223 if (!ipr_get_autosense(ipr_cmd)) {
6224 if (!ipr_is_naca_model(res)) {
6225 ipr_erp_cancel_all(ipr_cmd);
6226 return;
6227 }
6228 }
1da177e4 6229 }
ee0a90fa
BK		 6230 if (!ipr_is_naca_model(res))
6231 res->needs_sync_complete = 1;
1da177e4
LT		 6232 break;
6233 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
6234 break;
f8ee25d7
WX		 6235 case IPR_IOASC_IR_NON_OPTIMIZED:
6236 if (res->raw_mode) {
6237 res->raw_mode = 0;
6238 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6239 } else
6240 scsi_cmd->result |= (DID_ERROR << 16);
6241 break;
1da177e4 6242 default:
5b7304fb
BK		 6243 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6244 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa 6245 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
1da177e4
LT		 6246 res->needs_sync_complete = 1;
6247 break;
6248 }
6249
63015bc9 6250 scsi_dma_unmap(ipr_cmd->scsi_cmd);
05a6538a 6251 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 6252 scsi_cmd->scsi_done(scsi_cmd);
6253}
6254
6255/**
6256 * ipr_scsi_done - mid-layer done function
6257 * @ipr_cmd: ipr command struct
6258 *
6259 * This function is invoked by the interrupt handler for
6260 * ops generated by the SCSI mid-layer
6261 *
6262 * Return value:
6263 * none
6264 **/
6265static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
6266{
6267 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6268 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
96d21f00 6269 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
36b8e180 6270 unsigned long lock_flags;
1da177e4 6271
96d21f00 6272 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
1da177e4
LT		 6273
6274 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
172cd6e1
BK		 6275 scsi_dma_unmap(scsi_cmd);
6276
36b8e180 6277 spin_lock_irqsave(ipr_cmd->hrrq->lock, lock_flags);
05a6538a 6278 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4 6279 scsi_cmd->scsi_done(scsi_cmd);
36b8e180 6280 spin_unlock_irqrestore(ipr_cmd->hrrq->lock, lock_flags);
172cd6e1 6281 } else {
36b8e180
BK		 6282 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6283 spin_lock(&ipr_cmd->hrrq->_lock);
1da177e4 6284 ipr_erp_start(ioa_cfg, ipr_cmd);
36b8e180
BK		 6285 spin_unlock(&ipr_cmd->hrrq->_lock);
6286 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
172cd6e1 6287 }
1da177e4
LT		 6288}
6289
1da177e4
LT		 6290/**
6291 * ipr_queuecommand - Queue a mid-layer request
00bfef2c 6292 * @shost: scsi host struct
1da177e4 6293 * @scsi_cmd: scsi command struct
1da177e4
LT		 6294 *
6295 * This function queues a request generated by the mid-layer.
6296 *
6297 * Return value:
6298 * 0 on success
6299 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
6300 * SCSI_MLQUEUE_HOST_BUSY if host is busy
6301 **/
00bfef2c
BK		 6302static int ipr_queuecommand(struct Scsi_Host *shost,
6303 struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 6304{
6305 struct ipr_ioa_cfg *ioa_cfg;
6306 struct ipr_resource_entry *res;
6307 struct ipr_ioarcb *ioarcb;
6308 struct ipr_cmnd *ipr_cmd;
56d6aa33 6309 unsigned long hrrq_flags, lock_flags;
d12f1576 6310 int rc;
05a6538a 6311 struct ipr_hrr_queue *hrrq;
6312 int hrrq_id;
1da177e4 6313
00bfef2c
BK		 6314 ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
6315
1da177e4 6316 scsi_cmd->result = (DID_OK << 16);
00bfef2c 6317 res = scsi_cmd->device->hostdata;
56d6aa33 6318
6319 if (ipr_is_gata(res) && res->sata_port) {
6320 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6321 rc = ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
6322 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6323 return rc;
6324 }
6325
05a6538a 6326 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6327 hrrq = &ioa_cfg->hrrq[hrrq_id];
1da177e4 6328
56d6aa33 6329 spin_lock_irqsave(hrrq->lock, hrrq_flags);
1da177e4
LT		 6330 /*
6331 * We are currently blocking all devices due to a host reset
6332 * We have told the host to stop giving us new requests, but
6333 * ERP ops don't count. FIXME
6334 */
bfae7820 6335 if (unlikely(!hrrq->allow_cmds && !hrrq->ioa_is_dead && !hrrq->removing_ioa)) {
56d6aa33 6336 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4 6337 return SCSI_MLQUEUE_HOST_BUSY;
00bfef2c 6338 }
1da177e4
LT		 6339
6340 /*
6341 * FIXME - Create scsi_set_host_offline interface
6342 * and the ioa_is_dead check can be removed
6343 */
bfae7820 6344 if (unlikely(hrrq->ioa_is_dead || hrrq->removing_ioa || !res)) {
56d6aa33 6345 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c 6346 goto err_nodev;
1da177e4
LT		 6347 }
6348
05a6538a 6349 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6350 if (ipr_cmd == NULL) {
56d6aa33 6351 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 6352 return SCSI_MLQUEUE_HOST_BUSY;
6353 }
56d6aa33 6354 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
35a39691 6355
172cd6e1 6356 ipr_init_ipr_cmnd(ipr_cmd, ipr_scsi_done);
1da177e4 6357 ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 6358
6359 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
6360 ipr_cmd->scsi_cmd = scsi_cmd;
172cd6e1 6361 ipr_cmd->done = ipr_scsi_eh_done;
1da177e4 6362
4f92d01a 6363 if (ipr_is_gscsi(res)) {
1da177e4
LT		 6364 if (scsi_cmd->underflow == 0)
6365 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6366
4f92d01a 6367 if (res->reset_occurred) {
0b1f8d44 6368 res->reset_occurred = 0;
ab6c10b1 6369 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
0b1f8d44 6370 }
4f92d01a
GKB		 6371 }
6372
6373 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
6374 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6375
1da177e4 6376 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
50668633
CH		 6377 if (scsi_cmd->flags & SCMD_TAGGED)
6378 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_SIMPLE_TASK;
6379 else
6380 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_UNTAGGED_TASK;
1da177e4
LT		 6381 }
6382
6383 if (scsi_cmd->cmnd[0] >= 0xC0 &&
05a6538a 6384 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) {
1da177e4 6385 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
05a6538a 6386 }
3cb4fc1f 6387 if (res->raw_mode && ipr_is_af_dasd_device(res)) {
f8ee25d7 6388 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE;
1da177e4 6389
3cb4fc1f
GKB		 6390 if (scsi_cmd->underflow == 0)
6391 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6392 }
6393
d12f1576
DC		 6394 if (ioa_cfg->sis64)
6395 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
6396 else
6397 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
1da177e4 6398
56d6aa33 6399 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6400 if (unlikely(rc || (!hrrq->allow_cmds && !hrrq->ioa_is_dead))) {
05a6538a 6401 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
56d6aa33 6402 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6403 if (!rc)
6404 scsi_dma_unmap(scsi_cmd);
a5fb407e 6405 return SCSI_MLQUEUE_HOST_BUSY;
1da177e4
LT		 6406 }
6407
56d6aa33 6408 if (unlikely(hrrq->ioa_is_dead)) {
05a6538a 6409 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
56d6aa33 6410 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6411 scsi_dma_unmap(scsi_cmd);
6412 goto err_nodev;
6413 }
6414
6415 ioarcb->res_handle = res->res_handle;
6416 if (res->needs_sync_complete) {
6417 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
6418 res->needs_sync_complete = 0;
6419 }
05a6538a 6420 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_pending_q);
00bfef2c 6421 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
a5fb407e 6422 ipr_send_command(ipr_cmd);
56d6aa33 6423 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4 6424 return 0;
1da177e4 6425
00bfef2c 6426err_nodev:
56d6aa33 6427 spin_lock_irqsave(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6428 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
6429 scsi_cmd->result = (DID_NO_CONNECT << 16);
6430 scsi_cmd->scsi_done(scsi_cmd);
56d6aa33 6431 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6432 return 0;
6433}
f281233d 6434
35a39691
BK		 6435/**
6436 * ipr_ioctl - IOCTL handler
6437 * @sdev: scsi device struct
6438 * @cmd: IOCTL cmd
6439 * @arg: IOCTL arg
6440 *
6441 * Return value:
6442 * 0 on success / other on failure
6443 **/
bd705f2d 6444static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
35a39691
BK		 6445{
6446 struct ipr_resource_entry *res;
6447
6448 res = (struct ipr_resource_entry *)sdev->hostdata;
0ce3a7e5
BK		 6449 if (res && ipr_is_gata(res)) {
6450 if (cmd == HDIO_GET_IDENTITY)
6451 return -ENOTTY;
94be9a58 6452 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
0ce3a7e5 6453 }
35a39691
BK		 6454
6455 return -EINVAL;
6456}
6457
1da177e4
LT		 6458/**
6459 * ipr_info - Get information about the card/driver
6460 * @scsi_host: scsi host struct
6461 *
6462 * Return value:
6463 * pointer to buffer with description string
6464 **/
203fa3fe 6465static const char *ipr_ioa_info(struct Scsi_Host *host)
1da177e4
LT		 6466{
6467 static char buffer[512];
6468 struct ipr_ioa_cfg *ioa_cfg;
6469 unsigned long lock_flags = 0;
6470
6471 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
6472
6473 spin_lock_irqsave(host->host_lock, lock_flags);
6474 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
6475 spin_unlock_irqrestore(host->host_lock, lock_flags);
6476
6477 return buffer;
6478}
6479
6480static struct scsi_host_template driver_template = {
6481 .module = THIS_MODULE,
6482 .name = "IPR",
6483 .info = ipr_ioa_info,
35a39691 6484 .ioctl = ipr_ioctl,
1da177e4
LT		 6485 .queuecommand = ipr_queuecommand,
6486 .eh_abort_handler = ipr_eh_abort,
6487 .eh_device_reset_handler = ipr_eh_dev_reset,
6488 .eh_host_reset_handler = ipr_eh_host_reset,
6489 .slave_alloc = ipr_slave_alloc,
6490 .slave_configure = ipr_slave_configure,
6491 .slave_destroy = ipr_slave_destroy,
f688f96d 6492 .scan_finished = ipr_scan_finished,
35a39691
BK		 6493 .target_alloc = ipr_target_alloc,
6494 .target_destroy = ipr_target_destroy,
1da177e4 6495 .change_queue_depth = ipr_change_queue_depth,
1da177e4
LT		 6496 .bios_param = ipr_biosparam,
6497 .can_queue = IPR_MAX_COMMANDS,
6498 .this_id = -1,
6499 .sg_tablesize = IPR_MAX_SGLIST,
6500 .max_sectors = IPR_IOA_MAX_SECTORS,
6501 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
6502 .use_clustering = ENABLE_CLUSTERING,
6503 .shost_attrs = ipr_ioa_attrs,
6504 .sdev_attrs = ipr_dev_attrs,
54b2b50c 6505 .proc_name = IPR_NAME,
1da177e4
LT		 6506};
6507
35a39691
BK		 6508/**
6509 * ipr_ata_phy_reset - libata phy_reset handler
6510 * @ap: ata port to reset
6511 *
6512 **/
6513static void ipr_ata_phy_reset(struct ata_port *ap)
6514{
6515 unsigned long flags;
6516 struct ipr_sata_port *sata_port = ap->private_data;
6517 struct ipr_resource_entry *res = sata_port->res;
6518 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6519 int rc;
6520
6521 ENTER;
6522 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
203fa3fe 6523 while (ioa_cfg->in_reset_reload) {
35a39691
BK		 6524 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6525 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6526 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6527 }
6528
56d6aa33 6529 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
35a39691
BK		 6530 goto out_unlock;
6531
6532 rc = ipr_device_reset(ioa_cfg, res);
6533
6534 if (rc) {
3e4ec344 6535 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 6536 goto out_unlock;
6537 }
6538
3e7ebdfa
WB		 6539 ap->link.device[0].class = res->ata_class;
6540 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
3e4ec344 6541 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 6542
6543out_unlock:
6544 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6545 LEAVE;
6546}
6547
6548/**
6549 * ipr_ata_post_internal - Cleanup after an internal command
6550 * @qc: ATA queued command
6551 *
6552 * Return value:
6553 * none
6554 **/
6555static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
6556{
6557 struct ipr_sata_port *sata_port = qc->ap->private_data;
6558 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6559 struct ipr_cmnd *ipr_cmd;
05a6538a 6560 struct ipr_hrr_queue *hrrq;
35a39691
BK		 6561 unsigned long flags;
6562
6563 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
203fa3fe 6564 while (ioa_cfg->in_reset_reload) {
73d98ff0
BK		 6565 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6566 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6567 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6568 }
6569
05a6538a 6570 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 6571 spin_lock(&hrrq->_lock);
05a6538a 6572 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
6573 if (ipr_cmd->qc == qc) {
6574 ipr_device_reset(ioa_cfg, sata_port->res);
6575 break;
6576 }
35a39691 6577 }
56d6aa33 6578 spin_unlock(&hrrq->_lock);
35a39691
BK		 6579 }
6580 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6581}
6582
35a39691
BK		 6583/**
6584 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6585 * @regs: destination
6586 * @tf: source ATA taskfile
6587 *
6588 * Return value:
6589 * none
6590 **/
6591static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6592 struct ata_taskfile *tf)
6593{
6594 regs->feature = tf->feature;
6595 regs->nsect = tf->nsect;
6596 regs->lbal = tf->lbal;
6597 regs->lbam = tf->lbam;
6598 regs->lbah = tf->lbah;
6599 regs->device = tf->device;
6600 regs->command = tf->command;
6601 regs->hob_feature = tf->hob_feature;
6602 regs->hob_nsect = tf->hob_nsect;
6603 regs->hob_lbal = tf->hob_lbal;
6604 regs->hob_lbam = tf->hob_lbam;
6605 regs->hob_lbah = tf->hob_lbah;
6606 regs->ctl = tf->ctl;
6607}
6608
6609/**
6610 * ipr_sata_done - done function for SATA commands
6611 * @ipr_cmd: ipr command struct
6612 *
6613 * This function is invoked by the interrupt handler for
6614 * ops generated by the SCSI mid-layer to SATA devices
6615 *
6616 * Return value:
6617 * none
6618 **/
6619static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6620{
6621 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6622 struct ata_queued_cmd *qc = ipr_cmd->qc;
6623 struct ipr_sata_port *sata_port = qc->ap->private_data;
6624 struct ipr_resource_entry *res = sata_port->res;
96d21f00 6625 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
35a39691 6626
56d6aa33 6627 spin_lock(&ipr_cmd->hrrq->_lock);
96d21f00
WB		 6628 if (ipr_cmd->ioa_cfg->sis64)
6629 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6630 sizeof(struct ipr_ioasa_gata));
6631 else
6632 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6633 sizeof(struct ipr_ioasa_gata));
35a39691
BK		 6634 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6635
96d21f00 6636 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
3e7ebdfa 6637 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
35a39691
BK		 6638
6639 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
96d21f00 6640 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
35a39691 6641 else
96d21f00 6642 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
05a6538a 6643 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
56d6aa33 6644 spin_unlock(&ipr_cmd->hrrq->_lock);
35a39691
BK		 6645 ata_qc_complete(qc);
6646}
6647
a32c055f
WB		 6648/**
6649 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6650 * @ipr_cmd: ipr command struct
6651 * @qc: ATA queued command
6652 *
6653 **/
6654static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6655 struct ata_queued_cmd *qc)
6656{
6657 u32 ioadl_flags = 0;
6658 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1ac7c26d 6659 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ata_ioadl.ioadl64;
a32c055f
WB		 6660 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6661 int len = qc->nbytes;
6662 struct scatterlist *sg;
6663 unsigned int si;
6664 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6665
6666 if (len == 0)
6667 return;
6668
6669 if (qc->dma_dir == DMA_TO_DEVICE) {
6670 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6671 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6672 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6673 ioadl_flags = IPR_IOADL_FLAGS_READ;
6674
6675 ioarcb->data_transfer_length = cpu_to_be32(len);
6676 ioarcb->ioadl_len =
6677 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6678 ioarcb->u.sis64_addr_data.data_ioadl_addr =
1ac7c26d 6679 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl.ioadl64));
a32c055f
WB		 6680
6681 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6682 ioadl64->flags = cpu_to_be32(ioadl_flags);
6683 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6684 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6685
6686 last_ioadl64 = ioadl64;
6687 ioadl64++;
6688 }
6689
6690 if (likely(last_ioadl64))
6691 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6692}
6693
35a39691
BK		 6694/**
6695 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6696 * @ipr_cmd: ipr command struct
6697 * @qc: ATA queued command
6698 *
6699 **/
6700static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6701 struct ata_queued_cmd *qc)
6702{
6703 u32 ioadl_flags = 0;
6704 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 6705 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3be6cbd7 6706 struct ipr_ioadl_desc *last_ioadl = NULL;
dde20207 6707 int len = qc->nbytes;
35a39691 6708 struct scatterlist *sg;
ff2aeb1e 6709 unsigned int si;
35a39691
BK		 6710
6711 if (len == 0)
6712 return;
6713
6714 if (qc->dma_dir == DMA_TO_DEVICE) {
6715 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6716 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 6717 ioarcb->data_transfer_length = cpu_to_be32(len);
6718 ioarcb->ioadl_len =
35a39691
BK		 6719 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6720 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6721 ioadl_flags = IPR_IOADL_FLAGS_READ;
6722 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6723 ioarcb->read_ioadl_len =
6724 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6725 }
6726
ff2aeb1e 6727 for_each_sg(qc->sg, sg, qc->n_elem, si) {
35a39691
BK		 6728 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6729 ioadl->address = cpu_to_be32(sg_dma_address(sg));
3be6cbd7
JG		 6730
6731 last_ioadl = ioadl;
6732 ioadl++;
35a39691 6733 }
3be6cbd7
JG		 6734
6735 if (likely(last_ioadl))
6736 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
35a39691
BK		 6737}
6738
56d6aa33 6739/**
6740 * ipr_qc_defer - Get a free ipr_cmd
6741 * @qc: queued command
6742 *
6743 * Return value:
6744 * 0 if success
6745 **/
6746static int ipr_qc_defer(struct ata_queued_cmd *qc)
6747{
6748 struct ata_port *ap = qc->ap;
6749 struct ipr_sata_port *sata_port = ap->private_data;
6750 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6751 struct ipr_cmnd *ipr_cmd;
6752 struct ipr_hrr_queue *hrrq;
6753 int hrrq_id;
6754
6755 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6756 hrrq = &ioa_cfg->hrrq[hrrq_id];
6757
6758 qc->lldd_task = NULL;
6759 spin_lock(&hrrq->_lock);
6760 if (unlikely(hrrq->ioa_is_dead)) {
6761 spin_unlock(&hrrq->_lock);
6762 return 0;
6763 }
6764
6765 if (unlikely(!hrrq->allow_cmds)) {
6766 spin_unlock(&hrrq->_lock);
6767 return ATA_DEFER_LINK;
6768 }
6769
6770 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6771 if (ipr_cmd == NULL) {
6772 spin_unlock(&hrrq->_lock);
6773 return ATA_DEFER_LINK;
6774 }
6775
6776 qc->lldd_task = ipr_cmd;
6777 spin_unlock(&hrrq->_lock);
6778 return 0;
6779}
6780
35a39691
BK		 6781/**
6782 * ipr_qc_issue - Issue a SATA qc to a device
6783 * @qc: queued command
6784 *
6785 * Return value:
6786 * 0 if success
6787 **/
6788static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6789{
6790 struct ata_port *ap = qc->ap;
6791 struct ipr_sata_port *sata_port = ap->private_data;
6792 struct ipr_resource_entry *res = sata_port->res;
6793 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6794 struct ipr_cmnd *ipr_cmd;
6795 struct ipr_ioarcb *ioarcb;
6796 struct ipr_ioarcb_ata_regs *regs;
6797
56d6aa33 6798 if (qc->lldd_task == NULL)
6799 ipr_qc_defer(qc);
6800
6801 ipr_cmd = qc->lldd_task;
6802 if (ipr_cmd == NULL)
0feeed82 6803 return AC_ERR_SYSTEM;
35a39691 6804
56d6aa33 6805 qc->lldd_task = NULL;
6806 spin_lock(&ipr_cmd->hrrq->_lock);
6807 if (unlikely(!ipr_cmd->hrrq->allow_cmds ||
6808 ipr_cmd->hrrq->ioa_is_dead)) {
6809 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6810 spin_unlock(&ipr_cmd->hrrq->_lock);
6811 return AC_ERR_SYSTEM;
6812 }
6813
05a6538a 6814 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
35a39691 6815 ioarcb = &ipr_cmd->ioarcb;
35a39691 6816
a32c055f
WB		 6817 if (ioa_cfg->sis64) {
6818 regs = &ipr_cmd->i.ata_ioadl.regs;
6819 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6820 } else
6821 regs = &ioarcb->u.add_data.u.regs;
6822
6823 memset(regs, 0, sizeof(*regs));
6824 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
35a39691 6825
56d6aa33 6826 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
35a39691
BK		 6827 ipr_cmd->qc = qc;
6828 ipr_cmd->done = ipr_sata_done;
3e7ebdfa 6829 ipr_cmd->ioarcb.res_handle = res->res_handle;
35a39691
BK		 6830 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6831 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6832 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
dde20207 6833 ipr_cmd->dma_use_sg = qc->n_elem;
35a39691 6834
a32c055f
WB		 6835 if (ioa_cfg->sis64)
6836 ipr_build_ata_ioadl64(ipr_cmd, qc);
6837 else
6838 ipr_build_ata_ioadl(ipr_cmd, qc);
6839
35a39691
BK		 6840 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6841 ipr_copy_sata_tf(regs, &qc->tf);
6842 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
3e7ebdfa 6843 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
35a39691
BK		 6844
6845 switch (qc->tf.protocol) {
6846 case ATA_PROT_NODATA:
6847 case ATA_PROT_PIO:
6848 break;
6849
6850 case ATA_PROT_DMA:
6851 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6852 break;
6853
0dc36888
TH		 6854 case ATAPI_PROT_PIO:
6855 case ATAPI_PROT_NODATA:
35a39691
BK		 6856 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6857 break;
6858
0dc36888 6859 case ATAPI_PROT_DMA:
35a39691
BK		 6860 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6861 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6862 break;
6863
6864 default:
6865 WARN_ON(1);
56d6aa33 6866 spin_unlock(&ipr_cmd->hrrq->_lock);
0feeed82 6867 return AC_ERR_INVALID;
35a39691
BK		 6868 }
6869
a32c055f 6870 ipr_send_command(ipr_cmd);
56d6aa33 6871 spin_unlock(&ipr_cmd->hrrq->_lock);
a32c055f 6872
35a39691
BK		 6873 return 0;
6874}
6875
4c9bf4e7
TH		 6876/**
6877 * ipr_qc_fill_rtf - Read result TF
6878 * @qc: ATA queued command
6879 *
6880 * Return value:
6881 * true
6882 **/
6883static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6884{
6885 struct ipr_sata_port *sata_port = qc->ap->private_data;
6886 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6887 struct ata_taskfile *tf = &qc->result_tf;
6888
6889 tf->feature = g->error;
6890 tf->nsect = g->nsect;
6891 tf->lbal = g->lbal;
6892 tf->lbam = g->lbam;
6893 tf->lbah = g->lbah;
6894 tf->device = g->device;
6895 tf->command = g->status;
6896 tf->hob_nsect = g->hob_nsect;
6897 tf->hob_lbal = g->hob_lbal;
6898 tf->hob_lbam = g->hob_lbam;
6899 tf->hob_lbah = g->hob_lbah;
4c9bf4e7
TH		 6900
6901 return true;
6902}
6903
35a39691 6904static struct ata_port_operations ipr_sata_ops = {
35a39691 6905 .phy_reset = ipr_ata_phy_reset,
a1efdaba 6906 .hardreset = ipr_sata_reset,
35a39691 6907 .post_internal_cmd = ipr_ata_post_internal,
35a39691 6908 .qc_prep = ata_noop_qc_prep,
56d6aa33 6909 .qc_defer = ipr_qc_defer,
35a39691 6910 .qc_issue = ipr_qc_issue,
4c9bf4e7 6911 .qc_fill_rtf = ipr_qc_fill_rtf,
35a39691
BK		 6912 .port_start = ata_sas_port_start,
6913 .port_stop = ata_sas_port_stop
6914};
6915
6916static struct ata_port_info sata_port_info = {
5067c046
SL		 6917 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA |
6918 ATA_FLAG_SAS_HOST,
0f2e0330
SS		 6919 .pio_mask = ATA_PIO4_ONLY,
6920 .mwdma_mask = ATA_MWDMA2,
6921 .udma_mask = ATA_UDMA6,
35a39691
BK		 6922 .port_ops = &ipr_sata_ops
6923};
6924
1da177e4
LT		 6925#ifdef CONFIG_PPC_PSERIES
6926static const u16 ipr_blocked_processors[] = {
d3dbeef6
ME		 6927 PVR_NORTHSTAR,
6928 PVR_PULSAR,
6929 PVR_POWER4,
6930 PVR_ICESTAR,
6931 PVR_SSTAR,
6932 PVR_POWER4p,
6933 PVR_630,
6934 PVR_630p
1da177e4
LT		 6935};
6936
6937/**
6938 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6939 * @ioa_cfg: ioa cfg struct
6940 *
6941 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6942 * certain pSeries hardware. This function determines if the given
6943 * adapter is in one of these confgurations or not.
6944 *
6945 * Return value:
6946 * 1 if adapter is not supported / 0 if adapter is supported
6947 **/
6948static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6949{
1da177e4
LT		 6950 int i;
6951
44c10138 6952 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
203fa3fe 6953 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) {
d3dbeef6 6954 if (pvr_version_is(ipr_blocked_processors[i]))
44c10138 6955 return 1;
1da177e4
LT		 6956 }
6957 }
6958 return 0;
6959}
6960#else
6961#define ipr_invalid_adapter(ioa_cfg) 0
6962#endif
6963
6964/**
6965 * ipr_ioa_bringdown_done - IOA bring down completion.
6966 * @ipr_cmd: ipr command struct
6967 *
6968 * This function processes the completion of an adapter bring down.
6969 * It wakes any reset sleepers.
6970 *
6971 * Return value:
6972 * IPR_RC_JOB_RETURN
6973 **/
6974static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6975{
6976 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96b04db9 6977 int i;
1da177e4
LT		 6978
6979 ENTER;
bfae7820
BK		 6980 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
6981 ipr_trace;
6982 spin_unlock_irq(ioa_cfg->host->host_lock);
6983 scsi_unblock_requests(ioa_cfg->host);
6984 spin_lock_irq(ioa_cfg->host->host_lock);
6985 }
6986
1da177e4
LT		 6987 ioa_cfg->in_reset_reload = 0;
6988 ioa_cfg->reset_retries = 0;
96b04db9 6989 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
6990 spin_lock(&ioa_cfg->hrrq[i]._lock);
6991 ioa_cfg->hrrq[i].ioa_is_dead = 1;
6992 spin_unlock(&ioa_cfg->hrrq[i]._lock);
6993 }
6994 wmb();
6995
05a6538a 6996 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4 6997 wake_up_all(&ioa_cfg->reset_wait_q);
1da177e4
LT		 6998 LEAVE;
6999
7000 return IPR_RC_JOB_RETURN;
7001}
7002
7003/**
7004 * ipr_ioa_reset_done - IOA reset completion.
7005 * @ipr_cmd: ipr command struct
7006 *
7007 * This function processes the completion of an adapter reset.
7008 * It schedules any necessary mid-layer add/removes and
7009 * wakes any reset sleepers.
7010 *
7011 * Return value:
7012 * IPR_RC_JOB_RETURN
7013 **/
7014static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
7015{
7016 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7017 struct ipr_resource_entry *res;
7018 struct ipr_hostrcb *hostrcb, *temp;
56d6aa33 7019 int i = 0, j;
1da177e4
LT		 7020
7021 ENTER;
7022 ioa_cfg->in_reset_reload = 0;
56d6aa33 7023 for (j = 0; j < ioa_cfg->hrrq_num; j++) {
7024 spin_lock(&ioa_cfg->hrrq[j]._lock);
7025 ioa_cfg->hrrq[j].allow_cmds = 1;
7026 spin_unlock(&ioa_cfg->hrrq[j]._lock);
7027 }
7028 wmb();
1da177e4 7029 ioa_cfg->reset_cmd = NULL;
3d1d0da6 7030 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
1da177e4
LT		 7031
7032 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
f688f96d 7033 if (res->add_to_ml || res->del_from_ml) {
1da177e4
LT		 7034 ipr_trace;
7035 break;
7036 }
7037 }
7038 schedule_work(&ioa_cfg->work_q);
7039
7040 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
7041 list_del(&hostrcb->queue);
7042 if (i++ < IPR_NUM_LOG_HCAMS)
7043 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
7044 else
7045 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
7046 }
7047
6bb04170 7048 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
1da177e4
LT		 7049 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
7050
7051 ioa_cfg->reset_retries = 0;
05a6538a 7052 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 7053 wake_up_all(&ioa_cfg->reset_wait_q);
7054
30237853 7055 spin_unlock(ioa_cfg->host->host_lock);
1da177e4 7056 scsi_unblock_requests(ioa_cfg->host);
30237853 7057 spin_lock(ioa_cfg->host->host_lock);
1da177e4 7058
56d6aa33 7059 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
1da177e4
LT		 7060 scsi_block_requests(ioa_cfg->host);
7061
f688f96d 7062 schedule_work(&ioa_cfg->work_q);
1da177e4
LT		 7063 LEAVE;
7064 return IPR_RC_JOB_RETURN;
7065}
7066
7067/**
7068 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
7069 * @supported_dev: supported device struct
7070 * @vpids: vendor product id struct
7071 *
7072 * Return value:
7073 * none
7074 **/
7075static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
7076 struct ipr_std_inq_vpids *vpids)
7077{
7078 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
7079 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
7080 supported_dev->num_records = 1;
7081 supported_dev->data_length =
7082 cpu_to_be16(sizeof(struct ipr_supported_device));
7083 supported_dev->reserved = 0;
7084}
7085
7086/**
7087 * ipr_set_supported_devs - Send Set Supported Devices for a device
7088 * @ipr_cmd: ipr command struct
7089 *
a32c055f 7090 * This function sends a Set Supported Devices to the adapter
1da177e4
LT		 7091 *
7092 * Return value:
7093 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7094 **/
7095static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
7096{
7097 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7098 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
1da177e4
LT		 7099 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7100 struct ipr_resource_entry *res = ipr_cmd->u.res;
7101
7102 ipr_cmd->job_step = ipr_ioa_reset_done;
7103
7104 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
e4fbf44e 7105 if (!ipr_is_scsi_disk(res))
1da177e4
LT		 7106 continue;
7107
7108 ipr_cmd->u.res = res;
3e7ebdfa 7109 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
1da177e4
LT		 7110
7111 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7112 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7113 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7114
7115 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
3e7ebdfa 7116 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
1da177e4
LT		 7117 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
7118 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
7119
a32c055f
WB		 7120 ipr_init_ioadl(ipr_cmd,
7121 ioa_cfg->vpd_cbs_dma +
7122 offsetof(struct ipr_misc_cbs, supp_dev),
7123 sizeof(struct ipr_supported_device),
7124 IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 7125
7126 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7127 IPR_SET_SUP_DEVICE_TIMEOUT);
7128
3e7ebdfa
WB		 7129 if (!ioa_cfg->sis64)
7130 ipr_cmd->job_step = ipr_set_supported_devs;
05a6538a 7131 LEAVE;
1da177e4
LT		 7132 return IPR_RC_JOB_RETURN;
7133 }
7134
05a6538a 7135 LEAVE;
1da177e4
LT		 7136 return IPR_RC_JOB_CONTINUE;
7137}
7138
7139/**
7140 * ipr_get_mode_page - Locate specified mode page
7141 * @mode_pages: mode page buffer
7142 * @page_code: page code to find
7143 * @len: minimum required length for mode page
7144 *
7145 * Return value:
7146 * pointer to mode page / NULL on failure
7147 **/
7148static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
7149 u32 page_code, u32 len)
7150{
7151 struct ipr_mode_page_hdr *mode_hdr;
7152 u32 page_length;
7153 u32 length;
7154
7155 if (!mode_pages || (mode_pages->hdr.length == 0))
7156 return NULL;
7157
7158 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
7159 mode_hdr = (struct ipr_mode_page_hdr *)
7160 (mode_pages->data + mode_pages->hdr.block_desc_len);
7161
7162 while (length) {
7163 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
7164 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
7165 return mode_hdr;
7166 break;
7167 } else {
7168 page_length = (sizeof(struct ipr_mode_page_hdr) +
7169 mode_hdr->page_length);
7170 length -= page_length;
7171 mode_hdr = (struct ipr_mode_page_hdr *)
7172 ((unsigned long)mode_hdr + page_length);
7173 }
7174 }
7175 return NULL;
7176}
7177
7178/**
7179 * ipr_check_term_power - Check for term power errors
7180 * @ioa_cfg: ioa config struct
7181 * @mode_pages: IOAFP mode pages buffer
7182 *
7183 * Check the IOAFP's mode page 28 for term power errors
7184 *
7185 * Return value:
7186 * nothing
7187 **/
7188static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
7189 struct ipr_mode_pages *mode_pages)
7190{
7191 int i;
7192 int entry_length;
7193 struct ipr_dev_bus_entry *bus;
7194 struct ipr_mode_page28 *mode_page;
7195
7196 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7197 sizeof(struct ipr_mode_page28));
7198
7199 entry_length = mode_page->entry_length;
7200
7201 bus = mode_page->bus;
7202
7203 for (i = 0; i < mode_page->num_entries; i++) {
7204 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
7205 dev_err(&ioa_cfg->pdev->dev,
7206 "Term power is absent on scsi bus %d\n",
7207 bus->res_addr.bus);
7208 }
7209
7210 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
7211 }
7212}
7213
7214/**
7215 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
7216 * @ioa_cfg: ioa config struct
7217 *
7218 * Looks through the config table checking for SES devices. If
7219 * the SES device is in the SES table indicating a maximum SCSI
7220 * bus speed, the speed is limited for the bus.
7221 *
7222 * Return value:
7223 * none
7224 **/
7225static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
7226{
7227 u32 max_xfer_rate;
7228 int i;
7229
7230 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7231 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
7232 ioa_cfg->bus_attr[i].bus_width);
7233
7234 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
7235 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
7236 }
7237}
7238
7239/**
7240 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
7241 * @ioa_cfg: ioa config struct
7242 * @mode_pages: mode page 28 buffer
7243 *
7244 * Updates mode page 28 based on driver configuration
7245 *
7246 * Return value:
7247 * none
7248 **/
7249static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
203fa3fe 7250 struct ipr_mode_pages *mode_pages)
1da177e4
LT		 7251{
7252 int i, entry_length;
7253 struct ipr_dev_bus_entry *bus;
7254 struct ipr_bus_attributes *bus_attr;
7255 struct ipr_mode_page28 *mode_page;
7256
7257 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7258 sizeof(struct ipr_mode_page28));
7259
7260 entry_length = mode_page->entry_length;
7261
7262 /* Loop for each device bus entry */
7263 for (i = 0, bus = mode_page->bus;
7264 i < mode_page->num_entries;
7265 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
7266 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
7267 dev_err(&ioa_cfg->pdev->dev,
7268 "Invalid resource address reported: 0x%08X\n",
7269 IPR_GET_PHYS_LOC(bus->res_addr));
7270 continue;
7271 }
7272
7273 bus_attr = &ioa_cfg->bus_attr[i];
7274 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
7275 bus->bus_width = bus_attr->bus_width;
7276 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
7277 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
7278 if (bus_attr->qas_enabled)
7279 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
7280 else
7281 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
7282 }
7283}
7284
7285/**
7286 * ipr_build_mode_select - Build a mode select command
7287 * @ipr_cmd: ipr command struct
7288 * @res_handle: resource handle to send command to
7289 * @parm: Byte 2 of Mode Sense command
7290 * @dma_addr: DMA buffer address
7291 * @xfer_len: data transfer length
7292 *
7293 * Return value:
7294 * none
7295 **/
7296static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
a32c055f
WB		 7297 __be32 res_handle, u8 parm,
7298 dma_addr_t dma_addr, u8 xfer_len)
1da177e4 7299{
1da177e4
LT		 7300 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7301
7302 ioarcb->res_handle = res_handle;
7303 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7304 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7305 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
7306 ioarcb->cmd_pkt.cdb[1] = parm;
7307 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7308
a32c055f 7309 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 7310}
7311
7312/**
7313 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
7314 * @ipr_cmd: ipr command struct
7315 *
7316 * This function sets up the SCSI bus attributes and sends
7317 * a Mode Select for Page 28 to activate them.
7318 *
7319 * Return value:
7320 * IPR_RC_JOB_RETURN
7321 **/
7322static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
7323{
7324 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7325 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7326 int length;
7327
7328 ENTER;
4733804c
BK		 7329 ipr_scsi_bus_speed_limit(ioa_cfg);
7330 ipr_check_term_power(ioa_cfg, mode_pages);
7331 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
7332 length = mode_pages->hdr.length + 1;
7333 mode_pages->hdr.length = 0;
1da177e4
LT		 7334
7335 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7336 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7337 length);
7338
f72919ec
WB		 7339 ipr_cmd->job_step = ipr_set_supported_devs;
7340 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7341 struct ipr_resource_entry, queue);
1da177e4
LT		 7342 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7343
7344 LEAVE;
7345 return IPR_RC_JOB_RETURN;
7346}
7347
7348/**
7349 * ipr_build_mode_sense - Builds a mode sense command
7350 * @ipr_cmd: ipr command struct
7351 * @res: resource entry struct
7352 * @parm: Byte 2 of mode sense command
7353 * @dma_addr: DMA address of mode sense buffer
7354 * @xfer_len: Size of DMA buffer
7355 *
7356 * Return value:
7357 * none
7358 **/
7359static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
7360 __be32 res_handle,
a32c055f 7361 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
1da177e4 7362{
1da177e4
LT		 7363 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7364
7365 ioarcb->res_handle = res_handle;
7366 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
7367 ioarcb->cmd_pkt.cdb[2] = parm;
7368 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7369 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7370
a32c055f 7371 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7372}
7373
dfed823e
BK		 7374/**
7375 * ipr_reset_cmd_failed - Handle failure of IOA reset command
7376 * @ipr_cmd: ipr command struct
7377 *
7378 * This function handles the failure of an IOA bringup command.
7379 *
7380 * Return value:
7381 * IPR_RC_JOB_RETURN
7382 **/
7383static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
7384{
7385 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 7386 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e
BK		 7387
7388 dev_err(&ioa_cfg->pdev->dev,
7389 "0x%02X failed with IOASC: 0x%08X\n",
7390 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
7391
7392 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
05a6538a 7393 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
dfed823e
BK		 7394 return IPR_RC_JOB_RETURN;
7395}
7396
7397/**
7398 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
7399 * @ipr_cmd: ipr command struct
7400 *
7401 * This function handles the failure of a Mode Sense to the IOAFP.
7402 * Some adapters do not handle all mode pages.
7403 *
7404 * Return value:
7405 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7406 **/
7407static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
7408{
f72919ec 7409 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 7410 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e
BK		 7411
7412 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
f72919ec
WB		 7413 ipr_cmd->job_step = ipr_set_supported_devs;
7414 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7415 struct ipr_resource_entry, queue);
dfed823e
BK		 7416 return IPR_RC_JOB_CONTINUE;
7417 }
7418
7419 return ipr_reset_cmd_failed(ipr_cmd);
7420}
7421
1da177e4
LT		 7422/**
7423 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
7424 * @ipr_cmd: ipr command struct
7425 *
7426 * This function send a Page 28 mode sense to the IOA to
7427 * retrieve SCSI bus attributes.
7428 *
7429 * Return value:
7430 * IPR_RC_JOB_RETURN
7431 **/
7432static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
7433{
7434 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7435
7436 ENTER;
7437 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7438 0x28, ioa_cfg->vpd_cbs_dma +
7439 offsetof(struct ipr_misc_cbs, mode_pages),
7440 sizeof(struct ipr_mode_pages));
7441
7442 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
dfed823e 7443 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
1da177e4
LT		 7444
7445 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7446
7447 LEAVE;
7448 return IPR_RC_JOB_RETURN;
7449}
7450
ac09c349
BK		 7451/**
7452 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
7453 * @ipr_cmd: ipr command struct
7454 *
7455 * This function enables dual IOA RAID support if possible.
7456 *
7457 * Return value:
7458 * IPR_RC_JOB_RETURN
7459 **/
7460static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
7461{
7462 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7463 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7464 struct ipr_mode_page24 *mode_page;
7465 int length;
7466
7467 ENTER;
7468 mode_page = ipr_get_mode_page(mode_pages, 0x24,
7469 sizeof(struct ipr_mode_page24));
7470
7471 if (mode_page)
7472 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
7473
7474 length = mode_pages->hdr.length + 1;
7475 mode_pages->hdr.length = 0;
7476
7477 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7478 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7479 length);
7480
7481 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7482 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7483
7484 LEAVE;
7485 return IPR_RC_JOB_RETURN;
7486}
7487
7488/**
7489 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
7490 * @ipr_cmd: ipr command struct
7491 *
7492 * This function handles the failure of a Mode Sense to the IOAFP.
7493 * Some adapters do not handle all mode pages.
7494 *
7495 * Return value:
7496 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7497 **/
7498static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
7499{
96d21f00 7500 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
ac09c349
BK		 7501
7502 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7503 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7504 return IPR_RC_JOB_CONTINUE;
7505 }
7506
7507 return ipr_reset_cmd_failed(ipr_cmd);
7508}
7509
7510/**
7511 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
7512 * @ipr_cmd: ipr command struct
7513 *
7514 * This function send a mode sense to the IOA to retrieve
7515 * the IOA Advanced Function Control mode page.
7516 *
7517 * Return value:
7518 * IPR_RC_JOB_RETURN
7519 **/
7520static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
7521{
7522 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7523
7524 ENTER;
7525 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7526 0x24, ioa_cfg->vpd_cbs_dma +
7527 offsetof(struct ipr_misc_cbs, mode_pages),
7528 sizeof(struct ipr_mode_pages));
7529
7530 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
7531 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
7532
7533 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7534
7535 LEAVE;
7536 return IPR_RC_JOB_RETURN;
7537}
7538
1da177e4
LT		 7539/**
7540 * ipr_init_res_table - Initialize the resource table
7541 * @ipr_cmd: ipr command struct
7542 *
7543 * This function looks through the existing resource table, comparing
7544 * it with the config table. This function will take care of old/new
7545 * devices and schedule adding/removing them from the mid-layer
7546 * as appropriate.
7547 *
7548 * Return value:
7549 * IPR_RC_JOB_CONTINUE
7550 **/
7551static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
7552{
7553 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7554 struct ipr_resource_entry *res, *temp;
3e7ebdfa
WB		 7555 struct ipr_config_table_entry_wrapper cfgtew;
7556 int entries, found, flag, i;
1da177e4
LT		 7557 LIST_HEAD(old_res);
7558
7559 ENTER;
3e7ebdfa
WB		 7560 if (ioa_cfg->sis64)
7561 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
7562 else
7563 flag = ioa_cfg->u.cfg_table->hdr.flags;
7564
7565 if (flag & IPR_UCODE_DOWNLOAD_REQ)
1da177e4
LT		 7566 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
7567
7568 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
7569 list_move_tail(&res->queue, &old_res);
7570
3e7ebdfa 7571 if (ioa_cfg->sis64)
438b0331 7572 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
3e7ebdfa
WB		 7573 else
7574 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
7575
7576 for (i = 0; i < entries; i++) {
7577 if (ioa_cfg->sis64)
7578 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
7579 else
7580 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
1da177e4
LT		 7581 found = 0;
7582
7583 list_for_each_entry_safe(res, temp, &old_res, queue) {
3e7ebdfa 7584 if (ipr_is_same_device(res, &cfgtew)) {
1da177e4
LT		 7585 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7586 found = 1;
7587 break;
7588 }
7589 }
7590
7591 if (!found) {
7592 if (list_empty(&ioa_cfg->free_res_q)) {
7593 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
7594 break;
7595 }
7596
7597 found = 1;
7598 res = list_entry(ioa_cfg->free_res_q.next,
7599 struct ipr_resource_entry, queue);
7600 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
3e7ebdfa 7601 ipr_init_res_entry(res, &cfgtew);
1da177e4 7602 res->add_to_ml = 1;
56115598
WB		 7603 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
7604 res->sdev->allow_restart = 1;
1da177e4
LT		 7605
7606 if (found)
3e7ebdfa 7607 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 7608 }
7609
7610 list_for_each_entry_safe(res, temp, &old_res, queue) {
7611 if (res->sdev) {
7612 res->del_from_ml = 1;
3e7ebdfa 7613 res->res_handle = IPR_INVALID_RES_HANDLE;
1da177e4 7614 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
1da177e4
LT		 7615 }
7616 }
7617
3e7ebdfa
WB		 7618 list_for_each_entry_safe(res, temp, &old_res, queue) {
7619 ipr_clear_res_target(res);
7620 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
7621 }
7622
ac09c349
BK		 7623 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7624 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
7625 else
7626 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
1da177e4
LT		 7627
7628 LEAVE;
7629 return IPR_RC_JOB_CONTINUE;
7630}
7631
7632/**
7633 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
7634 * @ipr_cmd: ipr command struct
7635 *
7636 * This function sends a Query IOA Configuration command
7637 * to the adapter to retrieve the IOA configuration table.
7638 *
7639 * Return value:
7640 * IPR_RC_JOB_RETURN
7641 **/
7642static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
7643{
7644 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7645 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4 7646 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
ac09c349 7647 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
1da177e4
LT		 7648
7649 ENTER;
ac09c349
BK		 7650 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
7651 ioa_cfg->dual_raid = 1;
1da177e4
LT		 7652 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7653 ucode_vpd->major_release, ucode_vpd->card_type,
7654 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7655 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7656 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7657
7658 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
438b0331 7659 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
3e7ebdfa
WB		 7660 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7661 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
1da177e4 7662
3e7ebdfa 7663 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
a32c055f 7664 IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7665
7666 ipr_cmd->job_step = ipr_init_res_table;
7667
7668 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7669
7670 LEAVE;
7671 return IPR_RC_JOB_RETURN;
7672}
7673
1a47af26
GKB		 7674static int ipr_ioa_service_action_failed(struct ipr_cmnd *ipr_cmd)
7675{
7676 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7677
7678 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT)
7679 return IPR_RC_JOB_CONTINUE;
7680
7681 return ipr_reset_cmd_failed(ipr_cmd);
7682}
7683
7684static void ipr_build_ioa_service_action(struct ipr_cmnd *ipr_cmd,
7685 __be32 res_handle, u8 sa_code)
7686{
7687 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7688
7689 ioarcb->res_handle = res_handle;
7690 ioarcb->cmd_pkt.cdb[0] = IPR_IOA_SERVICE_ACTION;
7691 ioarcb->cmd_pkt.cdb[1] = sa_code;
7692 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7693}
7694
7695/**
7696 * ipr_ioafp_set_caching_parameters - Issue Set Cache parameters service
7697 * action
7698 *
7699 * Return value:
7700 * none
7701 **/
7702static int ipr_ioafp_set_caching_parameters(struct ipr_cmnd *ipr_cmd)
7703{
7704 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7705 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7706 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data;
7707
7708 ENTER;
7709
7710 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7711
7712 if (pageC4->cache_cap[0] & IPR_CAP_SYNC_CACHE) {
7713 ipr_build_ioa_service_action(ipr_cmd,
7714 cpu_to_be32(IPR_IOA_RES_HANDLE),
7715 IPR_IOA_SA_CHANGE_CACHE_PARAMS);
7716
7717 ioarcb->cmd_pkt.cdb[2] = 0x40;
7718
7719 ipr_cmd->job_step_failed = ipr_ioa_service_action_failed;
7720 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7721 IPR_SET_SUP_DEVICE_TIMEOUT);
7722
7723 LEAVE;
7724 return IPR_RC_JOB_RETURN;
7725 }
7726
7727 LEAVE;
7728 return IPR_RC_JOB_CONTINUE;
7729}
7730
1da177e4
LT		 7731/**
7732 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7733 * @ipr_cmd: ipr command struct
7734 *
7735 * This utility function sends an inquiry to the adapter.
7736 *
7737 * Return value:
7738 * none
7739 **/
7740static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
a32c055f 7741 dma_addr_t dma_addr, u8 xfer_len)
1da177e4
LT		 7742{
7743 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 7744
7745 ENTER;
7746 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7747 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7748
7749 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
7750 ioarcb->cmd_pkt.cdb[1] = flags;
7751 ioarcb->cmd_pkt.cdb[2] = page;
7752 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7753
a32c055f 7754 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7755
7756 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7757 LEAVE;
7758}
7759
62275040
BK		 7760/**
7761 * ipr_inquiry_page_supported - Is the given inquiry page supported
7762 * @page0: inquiry page 0 buffer
7763 * @page: page code.
7764 *
7765 * This function determines if the specified inquiry page is supported.
7766 *
7767 * Return value:
7768 * 1 if page is supported / 0 if not
7769 **/
7770static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7771{
7772 int i;
7773
7774 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7775 if (page0->page[i] == page)
7776 return 1;
7777
7778 return 0;
7779}
7780
1021b3ff
GKB		 7781/**
7782 * ipr_ioafp_pageC4_inquiry - Send a Page 0xC4 Inquiry to the adapter.
7783 * @ipr_cmd: ipr command struct
7784 *
7785 * This function sends a Page 0xC4 inquiry to the adapter
7786 * to retrieve software VPD information.
7787 *
7788 * Return value:
7789 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7790 **/
7791static int ipr_ioafp_pageC4_inquiry(struct ipr_cmnd *ipr_cmd)
7792{
7793 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7794 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7795 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data;
7796
7797 ENTER;
1a47af26 7798 ipr_cmd->job_step = ipr_ioafp_set_caching_parameters;
1021b3ff
GKB		 7799 memset(pageC4, 0, sizeof(*pageC4));
7800
7801 if (ipr_inquiry_page_supported(page0, 0xC4)) {
7802 ipr_ioafp_inquiry(ipr_cmd, 1, 0xC4,
7803 (ioa_cfg->vpd_cbs_dma
7804 + offsetof(struct ipr_misc_cbs,
7805 pageC4_data)),
7806 sizeof(struct ipr_inquiry_pageC4));
7807 return IPR_RC_JOB_RETURN;
7808 }
7809
7810 LEAVE;
7811 return IPR_RC_JOB_CONTINUE;
7812}
7813
ac09c349
BK		 7814/**
7815 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7816 * @ipr_cmd: ipr command struct
7817 *
7818 * This function sends a Page 0xD0 inquiry to the adapter
7819 * to retrieve adapter capabilities.
7820 *
7821 * Return value:
7822 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7823 **/
7824static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7825{
7826 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7827 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7828 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7829
7830 ENTER;
1021b3ff 7831 ipr_cmd->job_step = ipr_ioafp_pageC4_inquiry;
ac09c349
BK		 7832 memset(cap, 0, sizeof(*cap));
7833
7834 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7835 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7836 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7837 sizeof(struct ipr_inquiry_cap));
7838 return IPR_RC_JOB_RETURN;
7839 }
7840
7841 LEAVE;
7842 return IPR_RC_JOB_CONTINUE;
7843}
7844
1da177e4
LT		 7845/**
7846 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7847 * @ipr_cmd: ipr command struct
7848 *
7849 * This function sends a Page 3 inquiry to the adapter
7850 * to retrieve software VPD information.
7851 *
7852 * Return value:
7853 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7854 **/
7855static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
62275040
BK		 7856{
7857 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
62275040
BK		 7858
7859 ENTER;
7860
ac09c349 7861 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
62275040
BK		 7862
7863 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7864 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7865 sizeof(struct ipr_inquiry_page3));
7866
7867 LEAVE;
7868 return IPR_RC_JOB_RETURN;
7869}
7870
7871/**
7872 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7873 * @ipr_cmd: ipr command struct
7874 *
7875 * This function sends a Page 0 inquiry to the adapter
7876 * to retrieve supported inquiry pages.
7877 *
7878 * Return value:
7879 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7880 **/
7881static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7882{
7883 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7884 char type[5];
7885
7886 ENTER;
7887
7888 /* Grab the type out of the VPD and store it away */
7889 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7890 type[4] = '\0';
7891 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7892
f688f96d
BK		 7893 if (ipr_invalid_adapter(ioa_cfg)) {
7894 dev_err(&ioa_cfg->pdev->dev,
7895 "Adapter not supported in this hardware configuration.\n");
7896
7897 if (!ipr_testmode) {
7898 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
7899 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7900 list_add_tail(&ipr_cmd->queue,
7901 &ioa_cfg->hrrq->hrrq_free_q);
7902 return IPR_RC_JOB_RETURN;
7903 }
7904 }
7905
62275040 7906 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
1da177e4 7907
62275040
BK		 7908 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7909 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7910 sizeof(struct ipr_inquiry_page0));
1da177e4
LT		 7911
7912 LEAVE;
7913 return IPR_RC_JOB_RETURN;
7914}
7915
7916/**
7917 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7918 * @ipr_cmd: ipr command struct
7919 *
7920 * This function sends a standard inquiry to the adapter.
7921 *
7922 * Return value:
7923 * IPR_RC_JOB_RETURN
7924 **/
7925static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7926{
7927 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7928
7929 ENTER;
62275040 7930 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
1da177e4
LT		 7931
7932 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7933 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7934 sizeof(struct ipr_ioa_vpd));
7935
7936 LEAVE;
7937 return IPR_RC_JOB_RETURN;
7938}
7939
7940/**
214777ba 7941 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
1da177e4
LT		 7942 * @ipr_cmd: ipr command struct
7943 *
7944 * This function send an Identify Host Request Response Queue
7945 * command to establish the HRRQ with the adapter.
7946 *
7947 * Return value:
7948 * IPR_RC_JOB_RETURN
7949 **/
214777ba 7950static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7951{
7952 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7953 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
05a6538a 7954 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 7955
7956 ENTER;
05a6538a 7957 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
1da177e4
LT		 7958 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7959
56d6aa33 7960 if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) {
7961 hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index];
1da177e4 7962
05a6538a 7963 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7964 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1da177e4 7965
05a6538a 7966 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7967 if (ioa_cfg->sis64)
7968 ioarcb->cmd_pkt.cdb[1] = 0x1;
214777ba 7969
05a6538a 7970 if (ioa_cfg->nvectors == 1)
7971 ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE;
7972 else
7973 ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE;
7974
7975 ioarcb->cmd_pkt.cdb[2] =
7976 ((u64) hrrq->host_rrq_dma >> 24) & 0xff;
7977 ioarcb->cmd_pkt.cdb[3] =
7978 ((u64) hrrq->host_rrq_dma >> 16) & 0xff;
7979 ioarcb->cmd_pkt.cdb[4] =
7980 ((u64) hrrq->host_rrq_dma >> 8) & 0xff;
7981 ioarcb->cmd_pkt.cdb[5] =
7982 ((u64) hrrq->host_rrq_dma) & 0xff;
7983 ioarcb->cmd_pkt.cdb[7] =
7984 ((sizeof(u32) * hrrq->size) >> 8) & 0xff;
7985 ioarcb->cmd_pkt.cdb[8] =
7986 (sizeof(u32) * hrrq->size) & 0xff;
7987
7988 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
56d6aa33 7989 ioarcb->cmd_pkt.cdb[9] =
7990 ioa_cfg->identify_hrrq_index;
1da177e4 7991
05a6538a 7992 if (ioa_cfg->sis64) {
7993 ioarcb->cmd_pkt.cdb[10] =
7994 ((u64) hrrq->host_rrq_dma >> 56) & 0xff;
7995 ioarcb->cmd_pkt.cdb[11] =
7996 ((u64) hrrq->host_rrq_dma >> 48) & 0xff;
7997 ioarcb->cmd_pkt.cdb[12] =
7998 ((u64) hrrq->host_rrq_dma >> 40) & 0xff;
7999 ioarcb->cmd_pkt.cdb[13] =
8000 ((u64) hrrq->host_rrq_dma >> 32) & 0xff;
8001 }
8002
8003 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
56d6aa33 8004 ioarcb->cmd_pkt.cdb[14] =
8005 ioa_cfg->identify_hrrq_index;
05a6538a 8006
8007 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8008 IPR_INTERNAL_TIMEOUT);
8009
56d6aa33 8010 if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num)
8011 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
05a6538a 8012
8013 LEAVE;
8014 return IPR_RC_JOB_RETURN;
05a6538a 8015 }
8016
1da177e4 8017 LEAVE;
05a6538a 8018 return IPR_RC_JOB_CONTINUE;
1da177e4
LT		 8019}
8020
8021/**
8022 * ipr_reset_timer_done - Adapter reset timer function
8023 * @ipr_cmd: ipr command struct
8024 *
8025 * Description: This function is used in adapter reset processing
8026 * for timing events. If the reset_cmd pointer in the IOA
8027 * config struct is not this adapter's we are doing nested
8028 * resets and fail_all_ops will take care of freeing the
8029 * command block.
8030 *
8031 * Return value:
8032 * none
8033 **/
8034static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
8035{
8036 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8037 unsigned long lock_flags = 0;
8038
8039 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8040
8041 if (ioa_cfg->reset_cmd == ipr_cmd) {
8042 list_del(&ipr_cmd->queue);
8043 ipr_cmd->done(ipr_cmd);
8044 }
8045
8046 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8047}
8048
8049/**
8050 * ipr_reset_start_timer - Start a timer for adapter reset job
8051 * @ipr_cmd: ipr command struct
8052 * @timeout: timeout value
8053 *
8054 * Description: This function is used in adapter reset processing
8055 * for timing events. If the reset_cmd pointer in the IOA
8056 * config struct is not this adapter's we are doing nested
8057 * resets and fail_all_ops will take care of freeing the
8058 * command block.
8059 *
8060 * Return value:
8061 * none
8062 **/
8063static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
8064 unsigned long timeout)
8065{
05a6538a 8066
8067 ENTER;
8068 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 8069 ipr_cmd->done = ipr_reset_ioa_job;
8070
8071 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8072 ipr_cmd->timer.expires = jiffies + timeout;
8073 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
8074 add_timer(&ipr_cmd->timer);
8075}
8076
8077/**
8078 * ipr_init_ioa_mem - Initialize ioa_cfg control block
8079 * @ioa_cfg: ioa cfg struct
8080 *
8081 * Return value:
8082 * nothing
8083 **/
8084static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
8085{
05a6538a 8086 struct ipr_hrr_queue *hrrq;
1da177e4 8087
05a6538a 8088 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 8089 spin_lock(&hrrq->_lock);
05a6538a 8090 memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size);
8091
8092 /* Initialize Host RRQ pointers */
8093 hrrq->hrrq_start = hrrq->host_rrq;
8094 hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1];
8095 hrrq->hrrq_curr = hrrq->hrrq_start;
8096 hrrq->toggle_bit = 1;
56d6aa33 8097 spin_unlock(&hrrq->_lock);
05a6538a 8098 }
56d6aa33 8099 wmb();
05a6538a 8100
56d6aa33 8101 ioa_cfg->identify_hrrq_index = 0;
8102 if (ioa_cfg->hrrq_num == 1)
8103 atomic_set(&ioa_cfg->hrrq_index, 0);
8104 else
8105 atomic_set(&ioa_cfg->hrrq_index, 1);
1da177e4
LT		 8106
8107 /* Zero out config table */
3e7ebdfa 8108 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
1da177e4
LT		 8109}
8110
214777ba
WB		 8111/**
8112 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
8113 * @ipr_cmd: ipr command struct
8114 *
8115 * Return value:
8116 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8117 **/
8118static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
8119{
8120 unsigned long stage, stage_time;
8121 u32 feedback;
8122 volatile u32 int_reg;
8123 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8124 u64 maskval = 0;
8125
8126 feedback = readl(ioa_cfg->regs.init_feedback_reg);
8127 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
8128 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
8129
8130 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
8131
8132 /* sanity check the stage_time value */
438b0331
WB		 8133 if (stage_time == 0)
8134 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
8135 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
214777ba
WB		 8136 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
8137 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
8138 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
8139
8140 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
8141 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
8142 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8143 stage_time = ioa_cfg->transop_timeout;
8144 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8145 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
1df79ca4
WB		 8146 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
8147 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8148 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8149 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8150 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
8151 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
8152 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8153 return IPR_RC_JOB_CONTINUE;
8154 }
214777ba
WB		 8155 }
8156
8157 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8158 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
8159 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8160 ipr_cmd->done = ipr_reset_ioa_job;
8161 add_timer(&ipr_cmd->timer);
05a6538a 8162
8163 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
214777ba
WB		 8164
8165 return IPR_RC_JOB_RETURN;
8166}
8167
1da177e4
LT		 8168/**
8169 * ipr_reset_enable_ioa - Enable the IOA following a reset.
8170 * @ipr_cmd: ipr command struct
8171 *
8172 * This function reinitializes some control blocks and
8173 * enables destructive diagnostics on the adapter.
8174 *
8175 * Return value:
8176 * IPR_RC_JOB_RETURN
8177 **/
8178static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
8179{
8180 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8181 volatile u32 int_reg;
7be96900 8182 volatile u64 maskval;
56d6aa33 8183 int i;
1da177e4
LT		 8184
8185 ENTER;
214777ba 8186 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
1da177e4
LT		 8187 ipr_init_ioa_mem(ioa_cfg);
8188
56d6aa33 8189 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8190 spin_lock(&ioa_cfg->hrrq[i]._lock);
8191 ioa_cfg->hrrq[i].allow_interrupts = 1;
8192 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8193 }
8194 wmb();
8701f185
WB		 8195 if (ioa_cfg->sis64) {
8196 /* Set the adapter to the correct endian mode. */
8197 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8198 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8199 }
8200
7be96900 8201 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
1da177e4
LT		 8202
8203 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8204 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
214777ba 8205 ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4
LT		 8206 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8207 return IPR_RC_JOB_CONTINUE;
8208 }
8209
8210 /* Enable destructive diagnostics on IOA */
214777ba
WB		 8211 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
8212
7be96900
WB		 8213 if (ioa_cfg->sis64) {
8214 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8215 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
8216 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
8217 } else
8218 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4 8219
1da177e4
LT		 8220 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8221
8222 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
8223
214777ba
WB		 8224 if (ioa_cfg->sis64) {
8225 ipr_cmd->job_step = ipr_reset_next_stage;
8226 return IPR_RC_JOB_CONTINUE;
8227 }
8228
1da177e4 8229 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
5469cb5b 8230 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
1da177e4
LT		 8231 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8232 ipr_cmd->done = ipr_reset_ioa_job;
8233 add_timer(&ipr_cmd->timer);
05a6538a 8234 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 8235
8236 LEAVE;
8237 return IPR_RC_JOB_RETURN;
8238}
8239
8240/**
8241 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
8242 * @ipr_cmd: ipr command struct
8243 *
8244 * This function is invoked when an adapter dump has run out
8245 * of processing time.
8246 *
8247 * Return value:
8248 * IPR_RC_JOB_CONTINUE
8249 **/
8250static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
8251{
8252 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8253
8254 if (ioa_cfg->sdt_state == GET_DUMP)
41e9a696
BK		 8255 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8256 else if (ioa_cfg->sdt_state == READ_DUMP)
1da177e4
LT		 8257 ioa_cfg->sdt_state = ABORT_DUMP;
8258
4c647e90 8259 ioa_cfg->dump_timeout = 1;
1da177e4
LT		 8260 ipr_cmd->job_step = ipr_reset_alert;
8261
8262 return IPR_RC_JOB_CONTINUE;
8263}
8264
8265/**
8266 * ipr_unit_check_no_data - Log a unit check/no data error log
8267 * @ioa_cfg: ioa config struct
8268 *
8269 * Logs an error indicating the adapter unit checked, but for some
8270 * reason, we were unable to fetch the unit check buffer.
8271 *
8272 * Return value:
8273 * nothing
8274 **/
8275static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
8276{
8277 ioa_cfg->errors_logged++;
8278 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
8279}
8280
8281/**
8282 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
8283 * @ioa_cfg: ioa config struct
8284 *
8285 * Fetches the unit check buffer from the adapter by clocking the data
8286 * through the mailbox register.
8287 *
8288 * Return value:
8289 * nothing
8290 **/
8291static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
8292{
8293 unsigned long mailbox;
8294 struct ipr_hostrcb *hostrcb;
8295 struct ipr_uc_sdt sdt;
8296 int rc, length;
65f56475 8297 u32 ioasc;
1da177e4
LT		 8298
8299 mailbox = readl(ioa_cfg->ioa_mailbox);
8300
dcbad00e 8301 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
1da177e4
LT		 8302 ipr_unit_check_no_data(ioa_cfg);
8303 return;
8304 }
8305
8306 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
8307 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
8308 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
8309
dcbad00e
WB		 8310 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
8311 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
8312 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 8313 ipr_unit_check_no_data(ioa_cfg);
8314 return;
8315 }
8316
8317 /* Find length of the first sdt entry (UC buffer) */
dcbad00e
WB		 8318 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
8319 length = be32_to_cpu(sdt.entry[0].end_token);
8320 else
8321 length = (be32_to_cpu(sdt.entry[0].end_token) -
8322 be32_to_cpu(sdt.entry[0].start_token)) &
8323 IPR_FMT2_MBX_ADDR_MASK;
1da177e4
LT		 8324
8325 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
8326 struct ipr_hostrcb, queue);
8327 list_del(&hostrcb->queue);
8328 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
8329
8330 rc = ipr_get_ldump_data_section(ioa_cfg,
dcbad00e 8331 be32_to_cpu(sdt.entry[0].start_token),
1da177e4
LT		 8332 (__be32 *)&hostrcb->hcam,
8333 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
8334
65f56475 8335 if (!rc) {
1da177e4 8336 ipr_handle_log_data(ioa_cfg, hostrcb);
4565e370 8337 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
65f56475
BK		 8338 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
8339 ioa_cfg->sdt_state == GET_DUMP)
8340 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8341 } else
1da177e4
LT		 8342 ipr_unit_check_no_data(ioa_cfg);
8343
8344 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
8345}
8346
110def85
WB		 8347/**
8348 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
8349 * @ipr_cmd: ipr command struct
8350 *
8351 * Description: This function will call to get the unit check buffer.
8352 *
8353 * Return value:
8354 * IPR_RC_JOB_RETURN
8355 **/
8356static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
8357{
8358 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8359
8360 ENTER;
8361 ioa_cfg->ioa_unit_checked = 0;
8362 ipr_get_unit_check_buffer(ioa_cfg);
8363 ipr_cmd->job_step = ipr_reset_alert;
8364 ipr_reset_start_timer(ipr_cmd, 0);
8365
8366 LEAVE;
8367 return IPR_RC_JOB_RETURN;
8368}
8369
f41f1d99
GKB		 8370static int ipr_dump_mailbox_wait(struct ipr_cmnd *ipr_cmd)
8371{
8372 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8373
8374 ENTER;
8375
8376 if (ioa_cfg->sdt_state != GET_DUMP)
8377 return IPR_RC_JOB_RETURN;
8378
8379 if (!ioa_cfg->sis64 || !ipr_cmd->u.time_left ||
8380 (readl(ioa_cfg->regs.sense_interrupt_reg) &
8381 IPR_PCII_MAILBOX_STABLE)) {
8382
8383 if (!ipr_cmd->u.time_left)
8384 dev_err(&ioa_cfg->pdev->dev,
8385 "Timed out waiting for Mailbox register.\n");
8386
8387 ioa_cfg->sdt_state = READ_DUMP;
8388 ioa_cfg->dump_timeout = 0;
8389 if (ioa_cfg->sis64)
8390 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
8391 else
8392 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
8393 ipr_cmd->job_step = ipr_reset_wait_for_dump;
8394 schedule_work(&ioa_cfg->work_q);
8395
8396 } else {
8397 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8398 ipr_reset_start_timer(ipr_cmd,
8399 IPR_CHECK_FOR_RESET_TIMEOUT);
8400 }
8401
8402 LEAVE;
8403 return IPR_RC_JOB_RETURN;
8404}
8405
1da177e4
LT		 8406/**
8407 * ipr_reset_restore_cfg_space - Restore PCI config space.
8408 * @ipr_cmd: ipr command struct
8409 *
8410 * Description: This function restores the saved PCI config space of
8411 * the adapter, fails all outstanding ops back to the callers, and
8412 * fetches the dump/unit check if applicable to this reset.
8413 *
8414 * Return value:
8415 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8416 **/
8417static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
8418{
8419 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
630ad831 8420 u32 int_reg;
1da177e4
LT		 8421
8422 ENTER;
99c965dd 8423 ioa_cfg->pdev->state_saved = true;
1d3c16a8 8424 pci_restore_state(ioa_cfg->pdev);
1da177e4
LT		 8425
8426 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
96d21f00 8427 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
1da177e4
LT		 8428 return IPR_RC_JOB_CONTINUE;
8429 }
8430
8431 ipr_fail_all_ops(ioa_cfg);
8432
8701f185
WB		 8433 if (ioa_cfg->sis64) {
8434 /* Set the adapter to the correct endian mode. */
8435 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8436 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8437 }
8438
1da177e4 8439 if (ioa_cfg->ioa_unit_checked) {
110def85
WB		 8440 if (ioa_cfg->sis64) {
8441 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
8442 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
8443 return IPR_RC_JOB_RETURN;
8444 } else {
8445 ioa_cfg->ioa_unit_checked = 0;
8446 ipr_get_unit_check_buffer(ioa_cfg);
8447 ipr_cmd->job_step = ipr_reset_alert;
8448 ipr_reset_start_timer(ipr_cmd, 0);
8449 return IPR_RC_JOB_RETURN;
8450 }
1da177e4
LT		 8451 }
8452
8453 if (ioa_cfg->in_ioa_bringdown) {
8454 ipr_cmd->job_step = ipr_ioa_bringdown_done;
f41f1d99
GKB		 8455 } else if (ioa_cfg->sdt_state == GET_DUMP) {
8456 ipr_cmd->job_step = ipr_dump_mailbox_wait;
8457 ipr_cmd->u.time_left = IPR_WAIT_FOR_MAILBOX;
1da177e4
LT		 8458 } else {
8459 ipr_cmd->job_step = ipr_reset_enable_ioa;
1da177e4
LT		 8460 }
8461
438b0331 8462 LEAVE;
1da177e4
LT		 8463 return IPR_RC_JOB_CONTINUE;
8464}
8465
e619e1a7
BK		 8466/**
8467 * ipr_reset_bist_done - BIST has completed on the adapter.
8468 * @ipr_cmd: ipr command struct
8469 *
8470 * Description: Unblock config space and resume the reset process.
8471 *
8472 * Return value:
8473 * IPR_RC_JOB_CONTINUE
8474 **/
8475static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
8476{
fb51ccbf
JK		 8477 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8478
e619e1a7 8479 ENTER;
fb51ccbf
JK		 8480 if (ioa_cfg->cfg_locked)
8481 pci_cfg_access_unlock(ioa_cfg->pdev);
8482 ioa_cfg->cfg_locked = 0;
e619e1a7
BK		 8483 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
8484 LEAVE;
8485 return IPR_RC_JOB_CONTINUE;
8486}
8487
1da177e4
LT		 8488/**
8489 * ipr_reset_start_bist - Run BIST on the adapter.
8490 * @ipr_cmd: ipr command struct
8491 *
8492 * Description: This function runs BIST on the adapter, then delays 2 seconds.
8493 *
8494 * Return value:
8495 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8496 **/
8497static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
8498{
8499 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
cb237ef7 8500 int rc = PCIBIOS_SUCCESSFUL;
1da177e4
LT		 8501
8502 ENTER;
cb237ef7
WB		 8503 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
8504 writel(IPR_UPROCI_SIS64_START_BIST,
8505 ioa_cfg->regs.set_uproc_interrupt_reg32);
8506 else
8507 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
8508
8509 if (rc == PCIBIOS_SUCCESSFUL) {
e619e1a7 8510 ipr_cmd->job_step = ipr_reset_bist_done;
1da177e4
LT		 8511 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8512 rc = IPR_RC_JOB_RETURN;
cb237ef7 8513 } else {
fb51ccbf
JK		 8514 if (ioa_cfg->cfg_locked)
8515 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
8516 ioa_cfg->cfg_locked = 0;
cb237ef7
WB		 8517 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8518 rc = IPR_RC_JOB_CONTINUE;
1da177e4
LT		 8519 }
8520
8521 LEAVE;
8522 return rc;
8523}
8524
463fc696
BK		 8525/**
8526 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
8527 * @ipr_cmd: ipr command struct
8528 *
8529 * Description: This clears PCI reset to the adapter and delays two seconds.
8530 *
8531 * Return value:
8532 * IPR_RC_JOB_RETURN
8533 **/
8534static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
8535{
8536 ENTER;
463fc696
BK		 8537 ipr_cmd->job_step = ipr_reset_bist_done;
8538 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8539 LEAVE;
8540 return IPR_RC_JOB_RETURN;
8541}
8542
2796ca5e
BK		 8543/**
8544 * ipr_reset_reset_work - Pulse a PCIe fundamental reset
8545 * @work: work struct
8546 *
8547 * Description: This pulses warm reset to a slot.
8548 *
8549 **/
8550static void ipr_reset_reset_work(struct work_struct *work)
8551{
8552 struct ipr_cmnd *ipr_cmd = container_of(work, struct ipr_cmnd, work);
8553 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8554 struct pci_dev *pdev = ioa_cfg->pdev;
8555 unsigned long lock_flags = 0;
8556
8557 ENTER;
8558 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
8559 msleep(jiffies_to_msecs(IPR_PCI_RESET_TIMEOUT));
8560 pci_set_pcie_reset_state(pdev, pcie_deassert_reset);
8561
8562 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8563 if (ioa_cfg->reset_cmd == ipr_cmd)
8564 ipr_reset_ioa_job(ipr_cmd);
8565 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8566 LEAVE;
8567}
8568
463fc696
BK		 8569/**
8570 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
8571 * @ipr_cmd: ipr command struct
8572 *
8573 * Description: This asserts PCI reset to the adapter.
8574 *
8575 * Return value:
8576 * IPR_RC_JOB_RETURN
8577 **/
8578static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
8579{
8580 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
463fc696
BK		 8581
8582 ENTER;
2796ca5e
BK		 8583 INIT_WORK(&ipr_cmd->work, ipr_reset_reset_work);
8584 queue_work(ioa_cfg->reset_work_q, &ipr_cmd->work);
463fc696 8585 ipr_cmd->job_step = ipr_reset_slot_reset_done;
463fc696
BK		 8586 LEAVE;
8587 return IPR_RC_JOB_RETURN;
8588}
8589
fb51ccbf
JK		 8590/**
8591 * ipr_reset_block_config_access_wait - Wait for permission to block config access
8592 * @ipr_cmd: ipr command struct
8593 *
8594 * Description: This attempts to block config access to the IOA.
8595 *
8596 * Return value:
8597 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8598 **/
8599static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
8600{
8601 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8602 int rc = IPR_RC_JOB_CONTINUE;
8603
8604 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
8605 ioa_cfg->cfg_locked = 1;
8606 ipr_cmd->job_step = ioa_cfg->reset;
8607 } else {
8608 if (ipr_cmd->u.time_left) {
8609 rc = IPR_RC_JOB_RETURN;
8610 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8611 ipr_reset_start_timer(ipr_cmd,
8612 IPR_CHECK_FOR_RESET_TIMEOUT);
8613 } else {
8614 ipr_cmd->job_step = ioa_cfg->reset;
8615 dev_err(&ioa_cfg->pdev->dev,
8616 "Timed out waiting to lock config access. Resetting anyway.\n");
8617 }
8618 }
8619
8620 return rc;
8621}
8622
8623/**
8624 * ipr_reset_block_config_access - Block config access to the IOA
8625 * @ipr_cmd: ipr command struct
8626 *
8627 * Description: This attempts to block config access to the IOA
8628 *
8629 * Return value:
8630 * IPR_RC_JOB_CONTINUE
8631 **/
8632static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
8633{
8634 ipr_cmd->ioa_cfg->cfg_locked = 0;
8635 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
8636 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8637 return IPR_RC_JOB_CONTINUE;
8638}
8639
1da177e4
LT		 8640/**
8641 * ipr_reset_allowed - Query whether or not IOA can be reset
8642 * @ioa_cfg: ioa config struct
8643 *
8644 * Return value:
8645 * 0 if reset not allowed / non-zero if reset is allowed
8646 **/
8647static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
8648{
8649 volatile u32 temp_reg;
8650
8651 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8652 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
8653}
8654
8655/**
8656 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
8657 * @ipr_cmd: ipr command struct
8658 *
8659 * Description: This function waits for adapter permission to run BIST,
8660 * then runs BIST. If the adapter does not give permission after a
8661 * reasonable time, we will reset the adapter anyway. The impact of
8662 * resetting the adapter without warning the adapter is the risk of
8663 * losing the persistent error log on the adapter. If the adapter is
8664 * reset while it is writing to the flash on the adapter, the flash
8665 * segment will have bad ECC and be zeroed.
8666 *
8667 * Return value:
8668 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8669 **/
8670static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
8671{
8672 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8673 int rc = IPR_RC_JOB_RETURN;
8674
8675 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
8676 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8677 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8678 } else {
fb51ccbf 8679 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 8680 rc = IPR_RC_JOB_CONTINUE;
8681 }
8682
8683 return rc;
8684}
8685
8686/**
8701f185 8687 * ipr_reset_alert - Alert the adapter of a pending reset
1da177e4
LT		 8688 * @ipr_cmd: ipr command struct
8689 *
8690 * Description: This function alerts the adapter that it will be reset.
8691 * If memory space is not currently enabled, proceed directly
8692 * to running BIST on the adapter. The timer must always be started
8693 * so we guarantee we do not run BIST from ipr_isr.
8694 *
8695 * Return value:
8696 * IPR_RC_JOB_RETURN
8697 **/
8698static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
8699{
8700 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8701 u16 cmd_reg;
8702 int rc;
8703
8704 ENTER;
8705 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
8706
8707 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
8708 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
214777ba 8709 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 8710 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
8711 } else {
fb51ccbf 8712 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 8713 }
8714
8715 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8716 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8717
8718 LEAVE;
8719 return IPR_RC_JOB_RETURN;
8720}
8721
4fdd7c7a
BK		 8722/**
8723 * ipr_reset_quiesce_done - Complete IOA disconnect
8724 * @ipr_cmd: ipr command struct
8725 *
8726 * Description: Freeze the adapter to complete quiesce processing
8727 *
8728 * Return value:
8729 * IPR_RC_JOB_CONTINUE
8730 **/
8731static int ipr_reset_quiesce_done(struct ipr_cmnd *ipr_cmd)
8732{
8733 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8734
8735 ENTER;
8736 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8737 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8738 LEAVE;
8739 return IPR_RC_JOB_CONTINUE;
8740}
8741
8742/**
8743 * ipr_reset_cancel_hcam_done - Check for outstanding commands
8744 * @ipr_cmd: ipr command struct
8745 *
8746 * Description: Ensure nothing is outstanding to the IOA and
8747 * proceed with IOA disconnect. Otherwise reset the IOA.
8748 *
8749 * Return value:
8750 * IPR_RC_JOB_RETURN / IPR_RC_JOB_CONTINUE
8751 **/
8752static int ipr_reset_cancel_hcam_done(struct ipr_cmnd *ipr_cmd)
8753{
8754 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8755 struct ipr_cmnd *loop_cmd;
8756 struct ipr_hrr_queue *hrrq;
8757 int rc = IPR_RC_JOB_CONTINUE;
8758 int count = 0;
8759
8760 ENTER;
8761 ipr_cmd->job_step = ipr_reset_quiesce_done;
8762
8763 for_each_hrrq(hrrq, ioa_cfg) {
8764 spin_lock(&hrrq->_lock);
8765 list_for_each_entry(loop_cmd, &hrrq->hrrq_pending_q, queue) {
8766 count++;
8767 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8768 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
8769 rc = IPR_RC_JOB_RETURN;
8770 break;
8771 }
8772 spin_unlock(&hrrq->_lock);
8773
8774 if (count)
8775 break;
8776 }
8777
8778 LEAVE;
8779 return rc;
8780}
8781
8782/**
8783 * ipr_reset_cancel_hcam - Cancel outstanding HCAMs
8784 * @ipr_cmd: ipr command struct
8785 *
8786 * Description: Cancel any oustanding HCAMs to the IOA.
8787 *
8788 * Return value:
8789 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8790 **/
8791static int ipr_reset_cancel_hcam(struct ipr_cmnd *ipr_cmd)
8792{
8793 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8794 int rc = IPR_RC_JOB_CONTINUE;
8795 struct ipr_cmd_pkt *cmd_pkt;
8796 struct ipr_cmnd *hcam_cmd;
8797 struct ipr_hrr_queue *hrrq = &ioa_cfg->hrrq[IPR_INIT_HRRQ];
8798
8799 ENTER;
8800 ipr_cmd->job_step = ipr_reset_cancel_hcam_done;
8801
8802 if (!hrrq->ioa_is_dead) {
8803 if (!list_empty(&ioa_cfg->hostrcb_pending_q)) {
8804 list_for_each_entry(hcam_cmd, &hrrq->hrrq_pending_q, queue) {
8805 if (hcam_cmd->ioarcb.cmd_pkt.cdb[0] != IPR_HOST_CONTROLLED_ASYNC)
8806 continue;
8807
8808 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8809 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8810 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
8811 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
8812 cmd_pkt->cdb[0] = IPR_CANCEL_REQUEST;
8813 cmd_pkt->cdb[1] = IPR_CANCEL_64BIT_IOARCB;
8814 cmd_pkt->cdb[10] = ((u64) hcam_cmd->dma_addr >> 56) & 0xff;
8815 cmd_pkt->cdb[11] = ((u64) hcam_cmd->dma_addr >> 48) & 0xff;
8816 cmd_pkt->cdb[12] = ((u64) hcam_cmd->dma_addr >> 40) & 0xff;
8817 cmd_pkt->cdb[13] = ((u64) hcam_cmd->dma_addr >> 32) & 0xff;
8818 cmd_pkt->cdb[2] = ((u64) hcam_cmd->dma_addr >> 24) & 0xff;
8819 cmd_pkt->cdb[3] = ((u64) hcam_cmd->dma_addr >> 16) & 0xff;
8820 cmd_pkt->cdb[4] = ((u64) hcam_cmd->dma_addr >> 8) & 0xff;
8821 cmd_pkt->cdb[5] = ((u64) hcam_cmd->dma_addr) & 0xff;
8822
8823 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8824 IPR_CANCEL_TIMEOUT);
8825
8826 rc = IPR_RC_JOB_RETURN;
8827 ipr_cmd->job_step = ipr_reset_cancel_hcam;
8828 break;
8829 }
8830 }
8831 } else
8832 ipr_cmd->job_step = ipr_reset_alert;
8833
8834 LEAVE;
8835 return rc;
8836}
8837
1da177e4
LT		 8838/**
8839 * ipr_reset_ucode_download_done - Microcode download completion
8840 * @ipr_cmd: ipr command struct
8841 *
8842 * Description: This function unmaps the microcode download buffer.
8843 *
8844 * Return value:
8845 * IPR_RC_JOB_CONTINUE
8846 **/
8847static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
8848{
8849 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8850 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8851
d73341bf 8852 dma_unmap_sg(&ioa_cfg->pdev->dev, sglist->scatterlist,
1da177e4
LT		 8853 sglist->num_sg, DMA_TO_DEVICE);
8854
8855 ipr_cmd->job_step = ipr_reset_alert;
8856 return IPR_RC_JOB_CONTINUE;
8857}
8858
8859/**
8860 * ipr_reset_ucode_download - Download microcode to the adapter
8861 * @ipr_cmd: ipr command struct
8862 *
8863 * Description: This function checks to see if it there is microcode
8864 * to download to the adapter. If there is, a download is performed.
8865 *
8866 * Return value:
8867 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8868 **/
8869static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
8870{
8871 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8872 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8873
8874 ENTER;
8875 ipr_cmd->job_step = ipr_reset_alert;
8876
8877 if (!sglist)
8878 return IPR_RC_JOB_CONTINUE;
8879
8880 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8881 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
8882 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
8883 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
8884 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
8885 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
8886 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
8887
a32c055f
WB		 8888 if (ioa_cfg->sis64)
8889 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
8890 else
8891 ipr_build_ucode_ioadl(ipr_cmd, sglist);
1da177e4
LT		 8892 ipr_cmd->job_step = ipr_reset_ucode_download_done;
8893
8894 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8895 IPR_WRITE_BUFFER_TIMEOUT);
8896
8897 LEAVE;
8898 return IPR_RC_JOB_RETURN;
8899}
8900
8901/**
8902 * ipr_reset_shutdown_ioa - Shutdown the adapter
8903 * @ipr_cmd: ipr command struct
8904 *
8905 * Description: This function issues an adapter shutdown of the
8906 * specified type to the specified adapter as part of the
8907 * adapter reset job.
8908 *
8909 * Return value:
8910 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8911 **/
8912static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
8913{
8914 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8915 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
8916 unsigned long timeout;
8917 int rc = IPR_RC_JOB_CONTINUE;
8918
8919 ENTER;
4fdd7c7a
BK		 8920 if (shutdown_type == IPR_SHUTDOWN_QUIESCE)
8921 ipr_cmd->job_step = ipr_reset_cancel_hcam;
8922 else if (shutdown_type != IPR_SHUTDOWN_NONE &&
56d6aa33 8923 !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
1da177e4
LT		 8924 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8925 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8926 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
8927 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
8928
ac09c349
BK		 8929 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
8930 timeout = IPR_SHUTDOWN_TIMEOUT;
1da177e4
LT		 8931 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
8932 timeout = IPR_INTERNAL_TIMEOUT;
ac09c349
BK		 8933 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
8934 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
1da177e4 8935 else
ac09c349 8936 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
1da177e4
LT		 8937
8938 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
8939
8940 rc = IPR_RC_JOB_RETURN;
8941 ipr_cmd->job_step = ipr_reset_ucode_download;
8942 } else
8943 ipr_cmd->job_step = ipr_reset_alert;
8944
8945 LEAVE;
8946 return rc;
8947}
8948
8949/**
8950 * ipr_reset_ioa_job - Adapter reset job
8951 * @ipr_cmd: ipr command struct
8952 *
8953 * Description: This function is the job router for the adapter reset job.
8954 *
8955 * Return value:
8956 * none
8957 **/
8958static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
8959{
8960 u32 rc, ioasc;
1da177e4
LT		 8961 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8962
8963 do {
96d21f00 8964 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 8965
8966 if (ioa_cfg->reset_cmd != ipr_cmd) {
8967 /*
8968 * We are doing nested adapter resets and this is
8969 * not the current reset job.
8970 */
05a6538a 8971 list_add_tail(&ipr_cmd->queue,
8972 &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 8973 return;
8974 }
8975
8976 if (IPR_IOASC_SENSE_KEY(ioasc)) {
dfed823e
BK		 8977 rc = ipr_cmd->job_step_failed(ipr_cmd);
8978 if (rc == IPR_RC_JOB_RETURN)
8979 return;
1da177e4
LT		 8980 }
8981
8982 ipr_reinit_ipr_cmnd(ipr_cmd);
dfed823e 8983 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
1da177e4 8984 rc = ipr_cmd->job_step(ipr_cmd);
203fa3fe 8985 } while (rc == IPR_RC_JOB_CONTINUE);
1da177e4
LT		 8986}
8987
8988/**
8989 * _ipr_initiate_ioa_reset - Initiate an adapter reset
8990 * @ioa_cfg: ioa config struct
8991 * @job_step: first job step of reset job
8992 * @shutdown_type: shutdown type
8993 *
8994 * Description: This function will initiate the reset of the given adapter
8995 * starting at the selected job step.
8996 * If the caller needs to wait on the completion of the reset,
8997 * the caller must sleep on the reset_wait_q.
8998 *
8999 * Return value:
9000 * none
9001 **/
9002static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
9003 int (*job_step) (struct ipr_cmnd *),
9004 enum ipr_shutdown_type shutdown_type)
9005{
9006 struct ipr_cmnd *ipr_cmd;
56d6aa33 9007 int i;
1da177e4
LT		 9008
9009 ioa_cfg->in_reset_reload = 1;
56d6aa33 9010 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9011 spin_lock(&ioa_cfg->hrrq[i]._lock);
9012 ioa_cfg->hrrq[i].allow_cmds = 0;
9013 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9014 }
9015 wmb();
bfae7820
BK		 9016 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa)
9017 scsi_block_requests(ioa_cfg->host);
1da177e4
LT		 9018
9019 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
9020 ioa_cfg->reset_cmd = ipr_cmd;
9021 ipr_cmd->job_step = job_step;
9022 ipr_cmd->u.shutdown_type = shutdown_type;
9023
9024 ipr_reset_ioa_job(ipr_cmd);
9025}
9026
9027/**
9028 * ipr_initiate_ioa_reset - Initiate an adapter reset
9029 * @ioa_cfg: ioa config struct
9030 * @shutdown_type: shutdown type
9031 *
9032 * Description: This function will initiate the reset of the given adapter.
9033 * If the caller needs to wait on the completion of the reset,
9034 * the caller must sleep on the reset_wait_q.
9035 *
9036 * Return value:
9037 * none
9038 **/
9039static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
9040 enum ipr_shutdown_type shutdown_type)
9041{
56d6aa33 9042 int i;
9043
9044 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
1da177e4
LT		 9045 return;
9046
41e9a696
BK		 9047 if (ioa_cfg->in_reset_reload) {
9048 if (ioa_cfg->sdt_state == GET_DUMP)
9049 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
9050 else if (ioa_cfg->sdt_state == READ_DUMP)
9051 ioa_cfg->sdt_state = ABORT_DUMP;
9052 }
1da177e4
LT		 9053
9054 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
9055 dev_err(&ioa_cfg->pdev->dev,
9056 "IOA taken offline - error recovery failed\n");
9057
9058 ioa_cfg->reset_retries = 0;
56d6aa33 9059 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9060 spin_lock(&ioa_cfg->hrrq[i]._lock);
9061 ioa_cfg->hrrq[i].ioa_is_dead = 1;
9062 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9063 }
9064 wmb();
1da177e4
LT		 9065
9066 if (ioa_cfg->in_ioa_bringdown) {
9067 ioa_cfg->reset_cmd = NULL;
9068 ioa_cfg->in_reset_reload = 0;
9069 ipr_fail_all_ops(ioa_cfg);
9070 wake_up_all(&ioa_cfg->reset_wait_q);
9071
bfae7820
BK		 9072 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
9073 spin_unlock_irq(ioa_cfg->host->host_lock);
9074 scsi_unblock_requests(ioa_cfg->host);
9075 spin_lock_irq(ioa_cfg->host->host_lock);
9076 }
1da177e4
LT		 9077 return;
9078 } else {
9079 ioa_cfg->in_ioa_bringdown = 1;
9080 shutdown_type = IPR_SHUTDOWN_NONE;
9081 }
9082 }
9083
9084 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
9085 shutdown_type);
9086}
9087
f8a88b19
LV		 9088/**
9089 * ipr_reset_freeze - Hold off all I/O activity
9090 * @ipr_cmd: ipr command struct
9091 *
9092 * Description: If the PCI slot is frozen, hold off all I/O
9093 * activity; then, as soon as the slot is available again,
9094 * initiate an adapter reset.
9095 */
9096static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
9097{
56d6aa33 9098 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9099 int i;
9100
f8a88b19 9101 /* Disallow new interrupts, avoid loop */
56d6aa33 9102 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9103 spin_lock(&ioa_cfg->hrrq[i]._lock);
9104 ioa_cfg->hrrq[i].allow_interrupts = 0;
9105 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9106 }
9107 wmb();
05a6538a 9108 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
f8a88b19
LV		 9109 ipr_cmd->done = ipr_reset_ioa_job;
9110 return IPR_RC_JOB_RETURN;
9111}
9112
6270e593
BK		 9113/**
9114 * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled
9115 * @pdev: PCI device struct
9116 *
9117 * Description: This routine is called to tell us that the MMIO
9118 * access to the IOA has been restored
9119 */
9120static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev)
9121{
9122 unsigned long flags = 0;
9123 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9124
9125 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9126 if (!ioa_cfg->probe_done)
9127 pci_save_state(pdev);
9128 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9129 return PCI_ERS_RESULT_NEED_RESET;
9130}
9131
f8a88b19
LV		 9132/**
9133 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
9134 * @pdev: PCI device struct
9135 *
9136 * Description: This routine is called to tell us that the PCI bus
9137 * is down. Can't do anything here, except put the device driver
9138 * into a holding pattern, waiting for the PCI bus to come back.
9139 */
9140static void ipr_pci_frozen(struct pci_dev *pdev)
9141{
9142 unsigned long flags = 0;
9143 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9144
9145 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 9146 if (ioa_cfg->probe_done)
9147 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
f8a88b19
LV		 9148 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9149}
9150
9151/**
9152 * ipr_pci_slot_reset - Called when PCI slot has been reset.
9153 * @pdev: PCI device struct
9154 *
9155 * Description: This routine is called by the pci error recovery
9156 * code after the PCI slot has been reset, just before we
9157 * should resume normal operations.
9158 */
9159static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
9160{
9161 unsigned long flags = 0;
9162 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9163
9164 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 9165 if (ioa_cfg->probe_done) {
9166 if (ioa_cfg->needs_warm_reset)
9167 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9168 else
9169 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
9170 IPR_SHUTDOWN_NONE);
9171 } else
9172 wake_up_all(&ioa_cfg->eeh_wait_q);
f8a88b19
LV		 9173 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9174 return PCI_ERS_RESULT_RECOVERED;
9175}
9176
9177/**
9178 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
9179 * @pdev: PCI device struct
9180 *
9181 * Description: This routine is called when the PCI bus has
9182 * permanently failed.
9183 */
9184static void ipr_pci_perm_failure(struct pci_dev *pdev)
9185{
9186 unsigned long flags = 0;
9187 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
56d6aa33 9188 int i;
f8a88b19
LV		 9189
9190 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 9191 if (ioa_cfg->probe_done) {
9192 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
9193 ioa_cfg->sdt_state = ABORT_DUMP;
9194 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1;
9195 ioa_cfg->in_ioa_bringdown = 1;
9196 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9197 spin_lock(&ioa_cfg->hrrq[i]._lock);
9198 ioa_cfg->hrrq[i].allow_cmds = 0;
9199 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9200 }
9201 wmb();
9202 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9203 } else
9204 wake_up_all(&ioa_cfg->eeh_wait_q);
f8a88b19
LV		 9205 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9206}
9207
9208/**
9209 * ipr_pci_error_detected - Called when a PCI error is detected.
9210 * @pdev: PCI device struct
9211 * @state: PCI channel state
9212 *
9213 * Description: Called when a PCI error is detected.
9214 *
9215 * Return value:
9216 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
9217 */
9218static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
9219 pci_channel_state_t state)
9220{
9221 switch (state) {
9222 case pci_channel_io_frozen:
9223 ipr_pci_frozen(pdev);
6270e593 9224 return PCI_ERS_RESULT_CAN_RECOVER;
f8a88b19
LV		 9225 case pci_channel_io_perm_failure:
9226 ipr_pci_perm_failure(pdev);
9227 return PCI_ERS_RESULT_DISCONNECT;
9228 break;
9229 default:
9230 break;
9231 }
9232 return PCI_ERS_RESULT_NEED_RESET;
9233}
9234
1da177e4
LT		 9235/**
9236 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
9237 * @ioa_cfg: ioa cfg struct
9238 *
9239 * Description: This is the second phase of adapter intialization
9240 * This function takes care of initilizing the adapter to the point
9241 * where it can accept new commands.
9242
9243 * Return value:
b1c11812 9244 * 0 on success / -EIO on failure
1da177e4 9245 **/
6f039790 9246static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9247{
9248 int rc = 0;
9249 unsigned long host_lock_flags = 0;
9250
9251 ENTER;
9252 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9253 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
6270e593 9254 ioa_cfg->probe_done = 1;
ce155cce
BK		 9255 if (ioa_cfg->needs_hard_reset) {
9256 ioa_cfg->needs_hard_reset = 0;
9257 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9258 } else
9259 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
9260 IPR_SHUTDOWN_NONE);
1da177e4 9261 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
1da177e4
LT		 9262
9263 LEAVE;
9264 return rc;
9265}
9266
9267/**
9268 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
9269 * @ioa_cfg: ioa config struct
9270 *
9271 * Return value:
9272 * none
9273 **/
9274static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
9275{
9276 int i;
9277
a65e8f12
BK		 9278 if (ioa_cfg->ipr_cmnd_list) {
9279 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
9280 if (ioa_cfg->ipr_cmnd_list[i])
9281 dma_pool_free(ioa_cfg->ipr_cmd_pool,
9282 ioa_cfg->ipr_cmnd_list[i],
9283 ioa_cfg->ipr_cmnd_list_dma[i]);
1da177e4 9284
a65e8f12
BK		 9285 ioa_cfg->ipr_cmnd_list[i] = NULL;
9286 }
1da177e4
LT		 9287 }
9288
9289 if (ioa_cfg->ipr_cmd_pool)
d73341bf 9290 dma_pool_destroy(ioa_cfg->ipr_cmd_pool);
1da177e4 9291
89aad428
BK		 9292 kfree(ioa_cfg->ipr_cmnd_list);
9293 kfree(ioa_cfg->ipr_cmnd_list_dma);
9294 ioa_cfg->ipr_cmnd_list = NULL;
9295 ioa_cfg->ipr_cmnd_list_dma = NULL;
1da177e4
LT		 9296 ioa_cfg->ipr_cmd_pool = NULL;
9297}
9298
9299/**
9300 * ipr_free_mem - Frees memory allocated for an adapter
9301 * @ioa_cfg: ioa cfg struct
9302 *
9303 * Return value:
9304 * nothing
9305 **/
9306static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
9307{
9308 int i;
9309
9310 kfree(ioa_cfg->res_entries);
d73341bf
AB		 9311 dma_free_coherent(&ioa_cfg->pdev->dev, sizeof(struct ipr_misc_cbs),
9312 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
1da177e4 9313 ipr_free_cmd_blks(ioa_cfg);
05a6538a 9314
9315 for (i = 0; i < ioa_cfg->hrrq_num; i++)
d73341bf
AB		 9316 dma_free_coherent(&ioa_cfg->pdev->dev,
9317 sizeof(u32) * ioa_cfg->hrrq[i].size,
9318 ioa_cfg->hrrq[i].host_rrq,
9319 ioa_cfg->hrrq[i].host_rrq_dma);
05a6538a 9320
d73341bf
AB		 9321 dma_free_coherent(&ioa_cfg->pdev->dev, ioa_cfg->cfg_table_size,
9322 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
1da177e4
LT		 9323
9324 for (i = 0; i < IPR_NUM_HCAMS; i++) {
d73341bf
AB		 9325 dma_free_coherent(&ioa_cfg->pdev->dev,
9326 sizeof(struct ipr_hostrcb),
9327 ioa_cfg->hostrcb[i],
9328 ioa_cfg->hostrcb_dma[i]);
1da177e4
LT		 9329 }
9330
9331 ipr_free_dump(ioa_cfg);
1da177e4
LT		 9332 kfree(ioa_cfg->trace);
9333}
9334
9335/**
2796ca5e
BK		 9336 * ipr_free_irqs - Free all allocated IRQs for the adapter.
9337 * @ioa_cfg: ipr cfg struct
1da177e4 9338 *
2796ca5e 9339 * This function frees all allocated IRQs for the
1da177e4
LT		 9340 * specified adapter.
9341 *
9342 * Return value:
9343 * none
9344 **/
2796ca5e 9345static void ipr_free_irqs(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9346{
9347 struct pci_dev *pdev = ioa_cfg->pdev;
9348
05a6538a 9349 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
9350 ioa_cfg->intr_flag == IPR_USE_MSIX) {
9351 int i;
9352 for (i = 0; i < ioa_cfg->nvectors; i++)
9353 free_irq(ioa_cfg->vectors_info[i].vec,
2796ca5e 9354 &ioa_cfg->hrrq[i]);
05a6538a 9355 } else
9356 free_irq(pdev->irq, &ioa_cfg->hrrq[0]);
9357
56d6aa33 9358 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
05a6538a 9359 pci_disable_msi(pdev);
56d6aa33 9360 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
9361 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
05a6538a 9362 pci_disable_msix(pdev);
56d6aa33 9363 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
9364 }
2796ca5e 9365}
05a6538a 9366
2796ca5e
BK		 9367/**
9368 * ipr_free_all_resources - Free all allocated resources for an adapter.
9369 * @ipr_cmd: ipr command struct
9370 *
9371 * This function frees all allocated resources for the
9372 * specified adapter.
9373 *
9374 * Return value:
9375 * none
9376 **/
9377static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
9378{
9379 struct pci_dev *pdev = ioa_cfg->pdev;
05a6538a 9380
2796ca5e
BK		 9381 ENTER;
9382 ipr_free_irqs(ioa_cfg);
9383 if (ioa_cfg->reset_work_q)
9384 destroy_workqueue(ioa_cfg->reset_work_q);
1da177e4
LT		 9385 iounmap(ioa_cfg->hdw_dma_regs);
9386 pci_release_regions(pdev);
9387 ipr_free_mem(ioa_cfg);
9388 scsi_host_put(ioa_cfg->host);
9389 pci_disable_device(pdev);
9390 LEAVE;
9391}
9392
9393/**
9394 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
9395 * @ioa_cfg: ioa config struct
9396 *
9397 * Return value:
9398 * 0 on success / -ENOMEM on allocation failure
9399 **/
6f039790 9400static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9401{
9402 struct ipr_cmnd *ipr_cmd;
9403 struct ipr_ioarcb *ioarcb;
9404 dma_addr_t dma_addr;
05a6538a 9405 int i, entries_each_hrrq, hrrq_id = 0;
1da177e4 9406
d73341bf 9407 ioa_cfg->ipr_cmd_pool = dma_pool_create(IPR_NAME, &ioa_cfg->pdev->dev,
203fa3fe 9408 sizeof(struct ipr_cmnd), 512, 0);
1da177e4
LT		 9409
9410 if (!ioa_cfg->ipr_cmd_pool)
9411 return -ENOMEM;
9412
89aad428
BK		 9413 ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL);
9414 ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL);
9415
9416 if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) {
9417 ipr_free_cmd_blks(ioa_cfg);
9418 return -ENOMEM;
9419 }
9420
05a6538a 9421 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9422 if (ioa_cfg->hrrq_num > 1) {
9423 if (i == 0) {
9424 entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS;
9425 ioa_cfg->hrrq[i].min_cmd_id = 0;
9426 ioa_cfg->hrrq[i].max_cmd_id =
9427 (entries_each_hrrq - 1);
9428 } else {
9429 entries_each_hrrq =
9430 IPR_NUM_BASE_CMD_BLKS/
9431 (ioa_cfg->hrrq_num - 1);
9432 ioa_cfg->hrrq[i].min_cmd_id =
9433 IPR_NUM_INTERNAL_CMD_BLKS +
9434 (i - 1) * entries_each_hrrq;
9435 ioa_cfg->hrrq[i].max_cmd_id =
9436 (IPR_NUM_INTERNAL_CMD_BLKS +
9437 i * entries_each_hrrq - 1);
9438 }
9439 } else {
9440 entries_each_hrrq = IPR_NUM_CMD_BLKS;
9441 ioa_cfg->hrrq[i].min_cmd_id = 0;
9442 ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1);
9443 }
9444 ioa_cfg->hrrq[i].size = entries_each_hrrq;
9445 }
9446
9447 BUG_ON(ioa_cfg->hrrq_num == 0);
9448
9449 i = IPR_NUM_CMD_BLKS -
9450 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1;
9451 if (i > 0) {
9452 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i;
9453 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i;
9454 }
9455
1da177e4 9456 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
d73341bf 9457 ipr_cmd = dma_pool_alloc(ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
1da177e4
LT		 9458
9459 if (!ipr_cmd) {
9460 ipr_free_cmd_blks(ioa_cfg);
9461 return -ENOMEM;
9462 }
9463
9464 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
9465 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
9466 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
9467
9468 ioarcb = &ipr_cmd->ioarcb;
a32c055f
WB		 9469 ipr_cmd->dma_addr = dma_addr;
9470 if (ioa_cfg->sis64)
9471 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
9472 else
9473 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
9474
1da177e4 9475 ioarcb->host_response_handle = cpu_to_be32(i << 2);
a32c055f
WB		 9476 if (ioa_cfg->sis64) {
9477 ioarcb->u.sis64_addr_data.data_ioadl_addr =
9478 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
9479 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
96d21f00 9480 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
a32c055f
WB		 9481 } else {
9482 ioarcb->write_ioadl_addr =
9483 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
9484 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
9485 ioarcb->ioasa_host_pci_addr =
96d21f00 9486 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
a32c055f 9487 }
1da177e4
LT		 9488 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
9489 ipr_cmd->cmd_index = i;
9490 ipr_cmd->ioa_cfg = ioa_cfg;
9491 ipr_cmd->sense_buffer_dma = dma_addr +
9492 offsetof(struct ipr_cmnd, sense_buffer);
9493
05a6538a 9494 ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id;
9495 ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id];
9496 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
9497 if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id)
9498 hrrq_id++;
1da177e4
LT		 9499 }
9500
9501 return 0;
9502}
9503
9504/**
9505 * ipr_alloc_mem - Allocate memory for an adapter
9506 * @ioa_cfg: ioa config struct
9507 *
9508 * Return value:
9509 * 0 on success / non-zero for error
9510 **/
6f039790 9511static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9512{
9513 struct pci_dev *pdev = ioa_cfg->pdev;
9514 int i, rc = -ENOMEM;
9515
9516 ENTER;
0bc42e35 9517 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
3e7ebdfa 9518 ioa_cfg->max_devs_supported, GFP_KERNEL);
1da177e4
LT		 9519
9520 if (!ioa_cfg->res_entries)
9521 goto out;
9522
3e7ebdfa 9523 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
1da177e4 9524 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
3e7ebdfa
WB		 9525 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
9526 }
1da177e4 9527
d73341bf
AB		 9528 ioa_cfg->vpd_cbs = dma_alloc_coherent(&pdev->dev,
9529 sizeof(struct ipr_misc_cbs),
9530 &ioa_cfg->vpd_cbs_dma,
9531 GFP_KERNEL);
1da177e4
LT		 9532
9533 if (!ioa_cfg->vpd_cbs)
9534 goto out_free_res_entries;
9535
9536 if (ipr_alloc_cmd_blks(ioa_cfg))
9537 goto out_free_vpd_cbs;
9538
05a6538a 9539 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
d73341bf 9540 ioa_cfg->hrrq[i].host_rrq = dma_alloc_coherent(&pdev->dev,
05a6538a 9541 sizeof(u32) * ioa_cfg->hrrq[i].size,
d73341bf
AB		 9542 &ioa_cfg->hrrq[i].host_rrq_dma,
9543 GFP_KERNEL);
05a6538a 9544
9545 if (!ioa_cfg->hrrq[i].host_rrq) {
9546 while (--i > 0)
d73341bf 9547 dma_free_coherent(&pdev->dev,
05a6538a 9548 sizeof(u32) * ioa_cfg->hrrq[i].size,
9549 ioa_cfg->hrrq[i].host_rrq,
9550 ioa_cfg->hrrq[i].host_rrq_dma);
9551 goto out_ipr_free_cmd_blocks;
9552 }
9553 ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg;
9554 }
1da177e4 9555
d73341bf
AB		 9556 ioa_cfg->u.cfg_table = dma_alloc_coherent(&pdev->dev,
9557 ioa_cfg->cfg_table_size,
9558 &ioa_cfg->cfg_table_dma,
9559 GFP_KERNEL);
1da177e4 9560
3e7ebdfa 9561 if (!ioa_cfg->u.cfg_table)
1da177e4
LT		 9562 goto out_free_host_rrq;
9563
9564 for (i = 0; i < IPR_NUM_HCAMS; i++) {
d73341bf
AB		 9565 ioa_cfg->hostrcb[i] = dma_alloc_coherent(&pdev->dev,
9566 sizeof(struct ipr_hostrcb),
9567 &ioa_cfg->hostrcb_dma[i],
9568 GFP_KERNEL);
1da177e4
LT		 9569
9570 if (!ioa_cfg->hostrcb[i])
9571 goto out_free_hostrcb_dma;
9572
9573 ioa_cfg->hostrcb[i]->hostrcb_dma =
9574 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
49dc6a18 9575 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
1da177e4
LT		 9576 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
9577 }
9578
0bc42e35 9579 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
1da177e4
LT		 9580 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
9581
9582 if (!ioa_cfg->trace)
9583 goto out_free_hostrcb_dma;
9584
1da177e4
LT		 9585 rc = 0;
9586out:
9587 LEAVE;
9588 return rc;
9589
9590out_free_hostrcb_dma:
9591 while (i-- > 0) {
d73341bf
AB		 9592 dma_free_coherent(&pdev->dev, sizeof(struct ipr_hostrcb),
9593 ioa_cfg->hostrcb[i],
9594 ioa_cfg->hostrcb_dma[i]);
1da177e4 9595 }
d73341bf
AB		 9596 dma_free_coherent(&pdev->dev, ioa_cfg->cfg_table_size,
9597 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
1da177e4 9598out_free_host_rrq:
05a6538a 9599 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
d73341bf
AB		 9600 dma_free_coherent(&pdev->dev,
9601 sizeof(u32) * ioa_cfg->hrrq[i].size,
9602 ioa_cfg->hrrq[i].host_rrq,
9603 ioa_cfg->hrrq[i].host_rrq_dma);
05a6538a 9604 }
1da177e4
LT		 9605out_ipr_free_cmd_blocks:
9606 ipr_free_cmd_blks(ioa_cfg);
9607out_free_vpd_cbs:
d73341bf
AB		 9608 dma_free_coherent(&pdev->dev, sizeof(struct ipr_misc_cbs),
9609 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
1da177e4
LT		 9610out_free_res_entries:
9611 kfree(ioa_cfg->res_entries);
9612 goto out;
9613}
9614
9615/**
9616 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
9617 * @ioa_cfg: ioa config struct
9618 *
9619 * Return value:
9620 * none
9621 **/
6f039790 9622static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9623{
9624 int i;
9625
9626 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
9627 ioa_cfg->bus_attr[i].bus = i;
9628 ioa_cfg->bus_attr[i].qas_enabled = 0;
9629 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
9630 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
9631 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
9632 else
9633 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
9634 }
9635}
9636
6270e593
BK		 9637/**
9638 * ipr_init_regs - Initialize IOA registers
9639 * @ioa_cfg: ioa config struct
9640 *
9641 * Return value:
9642 * none
9643 **/
9644static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg)
9645{
9646 const struct ipr_interrupt_offsets *p;
9647 struct ipr_interrupts *t;
9648 void __iomem *base;
9649
9650 p = &ioa_cfg->chip_cfg->regs;
9651 t = &ioa_cfg->regs;
9652 base = ioa_cfg->hdw_dma_regs;
9653
9654 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
9655 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
9656 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
9657 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
9658 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
9659 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
9660 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
9661 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
9662 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
9663 t->ioarrin_reg = base + p->ioarrin_reg;
9664 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
9665 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
9666 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
9667 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
9668 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
9669 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
9670
9671 if (ioa_cfg->sis64) {
9672 t->init_feedback_reg = base + p->init_feedback_reg;
9673 t->dump_addr_reg = base + p->dump_addr_reg;
9674 t->dump_data_reg = base + p->dump_data_reg;
9675 t->endian_swap_reg = base + p->endian_swap_reg;
9676 }
9677}
9678
1da177e4
LT		 9679/**
9680 * ipr_init_ioa_cfg - Initialize IOA config struct
9681 * @ioa_cfg: ioa config struct
9682 * @host: scsi host struct
9683 * @pdev: PCI dev struct
9684 *
9685 * Return value:
9686 * none
9687 **/
6f039790
GKH		 9688static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
9689 struct Scsi_Host *host, struct pci_dev *pdev)
1da177e4 9690{
6270e593 9691 int i;
1da177e4
LT		 9692
9693 ioa_cfg->host = host;
9694 ioa_cfg->pdev = pdev;
9695 ioa_cfg->log_level = ipr_log_level;
3d1d0da6 9696 ioa_cfg->doorbell = IPR_DOORBELL;
1da177e4
LT		 9697 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
9698 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
1da177e4
LT		 9699 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
9700 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
9701 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
9702 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
9703
1da177e4
LT		 9704 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
9705 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
9706 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
9707 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
c4028958 9708 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
1da177e4 9709 init_waitqueue_head(&ioa_cfg->reset_wait_q);
95fecd90 9710 init_waitqueue_head(&ioa_cfg->msi_wait_q);
6270e593 9711 init_waitqueue_head(&ioa_cfg->eeh_wait_q);
1da177e4
LT		 9712 ioa_cfg->sdt_state = INACTIVE;
9713
9714 ipr_initialize_bus_attr(ioa_cfg);
3e7ebdfa 9715 ioa_cfg->max_devs_supported = ipr_max_devs;
1da177e4 9716
3e7ebdfa
WB		 9717 if (ioa_cfg->sis64) {
9718 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
9719 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
9720 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
9721 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
6270e593
BK		 9722 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
9723 + ((sizeof(struct ipr_config_table_entry64)
9724 * ioa_cfg->max_devs_supported)));
3e7ebdfa
WB		 9725 } else {
9726 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
9727 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
9728 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
9729 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
6270e593
BK		 9730 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
9731 + ((sizeof(struct ipr_config_table_entry)
9732 * ioa_cfg->max_devs_supported)));
3e7ebdfa 9733 }
6270e593 9734
f688f96d 9735 host->max_channel = IPR_VSET_BUS;
1da177e4
LT		 9736 host->unique_id = host->host_no;
9737 host->max_cmd_len = IPR_MAX_CDB_LEN;
89aad428 9738 host->can_queue = ioa_cfg->max_cmds;
1da177e4
LT		 9739 pci_set_drvdata(pdev, ioa_cfg);
9740
6270e593
BK		 9741 for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) {
9742 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q);
9743 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q);
9744 spin_lock_init(&ioa_cfg->hrrq[i]._lock);
9745 if (i == 0)
9746 ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock;
9747 else
9748 ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock;
dcbad00e 9749 }
1da177e4
LT		 9750}
9751
9752/**
1be7bd82 9753 * ipr_get_chip_info - Find adapter chip information
1da177e4
LT		 9754 * @dev_id: PCI device id struct
9755 *
9756 * Return value:
1be7bd82 9757 * ptr to chip information on success / NULL on failure
1da177e4 9758 **/
6f039790 9759static const struct ipr_chip_t *
1be7bd82 9760ipr_get_chip_info(const struct pci_device_id *dev_id)
1da177e4
LT		 9761{
9762 int i;
9763
1da177e4
LT		 9764 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
9765 if (ipr_chip[i].vendor == dev_id->vendor &&
9766 ipr_chip[i].device == dev_id->device)
1be7bd82 9767 return &ipr_chip[i];
1da177e4
LT		 9768 return NULL;
9769}
9770
6270e593
BK		 9771/**
9772 * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete
9773 * during probe time
9774 * @ioa_cfg: ioa config struct
9775 *
9776 * Return value:
9777 * None
9778 **/
9779static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg)
9780{
9781 struct pci_dev *pdev = ioa_cfg->pdev;
9782
9783 if (pci_channel_offline(pdev)) {
9784 wait_event_timeout(ioa_cfg->eeh_wait_q,
9785 !pci_channel_offline(pdev),
9786 IPR_PCI_ERROR_RECOVERY_TIMEOUT);
9787 pci_restore_state(pdev);
9788 }
9789}
9790
05a6538a 9791static int ipr_enable_msix(struct ipr_ioa_cfg *ioa_cfg)
9792{
9793 struct msix_entry entries[IPR_MAX_MSIX_VECTORS];
60e76b77 9794 int i, vectors;
05a6538a 9795
9796 for (i = 0; i < ARRAY_SIZE(entries); ++i)
9797 entries[i].entry = i;
9798
60e76b77
AG		 9799 vectors = pci_enable_msix_range(ioa_cfg->pdev,
9800 entries, 1, ipr_number_of_msix);
9801 if (vectors < 0) {
6270e593 9802 ipr_wait_for_pci_err_recovery(ioa_cfg);
60e76b77 9803 return vectors;
05a6538a 9804 }
9805
60e76b77
AG		 9806 for (i = 0; i < vectors; i++)
9807 ioa_cfg->vectors_info[i].vec = entries[i].vector;
9808 ioa_cfg->nvectors = vectors;
05a6538a 9809
60e76b77 9810 return 0;
05a6538a 9811}
9812
9813static int ipr_enable_msi(struct ipr_ioa_cfg *ioa_cfg)
9814{
60e76b77 9815 int i, vectors;
05a6538a 9816
60e76b77
AG		 9817 vectors = pci_enable_msi_range(ioa_cfg->pdev, 1, ipr_number_of_msix);
9818 if (vectors < 0) {
6270e593 9819 ipr_wait_for_pci_err_recovery(ioa_cfg);
60e76b77 9820 return vectors;
05a6538a 9821 }
9822
60e76b77
AG		 9823 for (i = 0; i < vectors; i++)
9824 ioa_cfg->vectors_info[i].vec = ioa_cfg->pdev->irq + i;
9825 ioa_cfg->nvectors = vectors;
05a6538a 9826
60e76b77 9827 return 0;
05a6538a 9828}
9829
9830static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg)
9831{
9832 int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1;
9833
9834 for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) {
9835 snprintf(ioa_cfg->vectors_info[vec_idx].desc, n,
9836 "host%d-%d", ioa_cfg->host->host_no, vec_idx);
9837 ioa_cfg->vectors_info[vec_idx].
9838 desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0;
9839 }
9840}
9841
9842static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg)
9843{
9844 int i, rc;
9845
9846 for (i = 1; i < ioa_cfg->nvectors; i++) {
9847 rc = request_irq(ioa_cfg->vectors_info[i].vec,
9848 ipr_isr_mhrrq,
9849 0,
9850 ioa_cfg->vectors_info[i].desc,
9851 &ioa_cfg->hrrq[i]);
9852 if (rc) {
9853 while (--i >= 0)
9854 free_irq(ioa_cfg->vectors_info[i].vec,
9855 &ioa_cfg->hrrq[i]);
9856 return rc;
9857 }
9858 }
9859 return 0;
9860}
9861
95fecd90
WB		 9862/**
9863 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
9864 * @pdev: PCI device struct
9865 *
9866 * Description: Simply set the msi_received flag to 1 indicating that
9867 * Message Signaled Interrupts are supported.
9868 *
9869 * Return value:
9870 * 0 on success / non-zero on failure
9871 **/
6f039790 9872static irqreturn_t ipr_test_intr(int irq, void *devp)
95fecd90
WB		 9873{
9874 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
9875 unsigned long lock_flags = 0;
9876 irqreturn_t rc = IRQ_HANDLED;
9877
05a6538a 9878 dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n", irq);
95fecd90
WB		 9879 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9880
9881 ioa_cfg->msi_received = 1;
9882 wake_up(&ioa_cfg->msi_wait_q);
9883
9884 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9885 return rc;
9886}
9887
9888/**
9889 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
9890 * @pdev: PCI device struct
9891 *
60e76b77 9892 * Description: The return value from pci_enable_msi_range() can not always be
95fecd90
WB		 9893 * trusted. This routine sets up and initiates a test interrupt to determine
9894 * if the interrupt is received via the ipr_test_intr() service routine.
9895 * If the tests fails, the driver will fall back to LSI.
9896 *
9897 * Return value:
9898 * 0 on success / non-zero on failure
9899 **/
6f039790 9900static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev)
95fecd90
WB		 9901{
9902 int rc;
9903 volatile u32 int_reg;
9904 unsigned long lock_flags = 0;
9905
9906 ENTER;
9907
9908 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9909 init_waitqueue_head(&ioa_cfg->msi_wait_q);
9910 ioa_cfg->msi_received = 0;
9911 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
214777ba 9912 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
95fecd90
WB		 9913 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
9914 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9915
f19799f4 9916 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9917 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
9918 else
9919 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
95fecd90
WB		 9920 if (rc) {
9921 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
9922 return rc;
9923 } else if (ipr_debug)
9924 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
9925
214777ba 9926 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
95fecd90
WB		 9927 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
9928 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
56d6aa33 9929 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
95fecd90
WB		 9930 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
9931
95fecd90
WB		 9932 if (!ioa_cfg->msi_received) {
9933 /* MSI test failed */
9934 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
9935 rc = -EOPNOTSUPP;
9936 } else if (ipr_debug)
9937 dev_info(&pdev->dev, "MSI test succeeded.\n");
9938
9939 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9940
f19799f4 9941 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9942 free_irq(ioa_cfg->vectors_info[0].vec, ioa_cfg);
9943 else
9944 free_irq(pdev->irq, ioa_cfg);
95fecd90
WB		 9945
9946 LEAVE;
9947
9948 return rc;
9949}
9950
05a6538a 9951 /* ipr_probe_ioa - Allocates memory and does first stage of initialization
1da177e4
LT		 9952 * @pdev: PCI device struct
9953 * @dev_id: PCI device id struct
9954 *
9955 * Return value:
9956 * 0 on success / non-zero on failure
9957 **/
6f039790
GKH		 9958static int ipr_probe_ioa(struct pci_dev *pdev,
9959 const struct pci_device_id *dev_id)
1da177e4
LT		 9960{
9961 struct ipr_ioa_cfg *ioa_cfg;
9962 struct Scsi_Host *host;
9963 unsigned long ipr_regs_pci;
9964 void __iomem *ipr_regs;
a2a65a3e 9965 int rc = PCIBIOS_SUCCESSFUL;
473b1e8e 9966 volatile u32 mask, uproc, interrupts;
feccada9 9967 unsigned long lock_flags, driver_lock_flags;
1da177e4
LT		 9968
9969 ENTER;
9970
1da177e4 9971 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
1da177e4
LT		 9972 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
9973
9974 if (!host) {
9975 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
9976 rc = -ENOMEM;
6270e593 9977 goto out;
1da177e4
LT		 9978 }
9979
9980 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
9981 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
8d8e7d13 9982 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops);
1da177e4 9983
1be7bd82 9984 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
1da177e4 9985
1be7bd82 9986 if (!ioa_cfg->ipr_chip) {
1da177e4
LT		 9987 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
9988 dev_id->vendor, dev_id->device);
9989 goto out_scsi_host_put;
9990 }
9991
a32c055f
WB		 9992 /* set SIS 32 or SIS 64 */
9993 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
1be7bd82 9994 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
7dd21308 9995 ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr;
89aad428 9996 ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds;
1be7bd82 9997
5469cb5b
BK		 9998 if (ipr_transop_timeout)
9999 ioa_cfg->transop_timeout = ipr_transop_timeout;
10000 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
10001 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
10002 else
10003 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
10004
44c10138 10005 ioa_cfg->revid = pdev->revision;
463fc696 10006
6270e593
BK		 10007 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
10008
1da177e4
LT		 10009 ipr_regs_pci = pci_resource_start(pdev, 0);
10010
10011 rc = pci_request_regions(pdev, IPR_NAME);
10012 if (rc < 0) {
10013 dev_err(&pdev->dev,
10014 "Couldn't register memory range of registers\n");
10015 goto out_scsi_host_put;
10016 }
10017
6270e593
BK		 10018 rc = pci_enable_device(pdev);
10019
10020 if (rc || pci_channel_offline(pdev)) {
10021 if (pci_channel_offline(pdev)) {
10022 ipr_wait_for_pci_err_recovery(ioa_cfg);
10023 rc = pci_enable_device(pdev);
10024 }
10025
10026 if (rc) {
10027 dev_err(&pdev->dev, "Cannot enable adapter\n");
10028 ipr_wait_for_pci_err_recovery(ioa_cfg);
10029 goto out_release_regions;
10030 }
10031 }
10032
25729a7f 10033 ipr_regs = pci_ioremap_bar(pdev, 0);
1da177e4
LT		 10034
10035 if (!ipr_regs) {
10036 dev_err(&pdev->dev,
10037 "Couldn't map memory range of registers\n");
10038 rc = -ENOMEM;
6270e593 10039 goto out_disable;
1da177e4
LT		 10040 }
10041
10042 ioa_cfg->hdw_dma_regs = ipr_regs;
10043 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
10044 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
10045
6270e593 10046 ipr_init_regs(ioa_cfg);
1da177e4 10047
a32c055f 10048 if (ioa_cfg->sis64) {
869404cb 10049 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
a32c055f 10050 if (rc < 0) {
869404cb
AB		 10051 dev_dbg(&pdev->dev, "Failed to set 64 bit DMA mask\n");
10052 rc = dma_set_mask_and_coherent(&pdev->dev,
10053 DMA_BIT_MASK(32));
a32c055f 10054 }
a32c055f 10055 } else
869404cb 10056 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
a32c055f 10057
1da177e4 10058 if (rc < 0) {
869404cb 10059 dev_err(&pdev->dev, "Failed to set DMA mask\n");
1da177e4
LT		 10060 goto cleanup_nomem;
10061 }
10062
10063 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
10064 ioa_cfg->chip_cfg->cache_line_size);
10065
10066 if (rc != PCIBIOS_SUCCESSFUL) {
10067 dev_err(&pdev->dev, "Write of cache line size failed\n");
6270e593 10068 ipr_wait_for_pci_err_recovery(ioa_cfg);
1da177e4
LT		 10069 rc = -EIO;
10070 goto cleanup_nomem;
10071 }
10072
6270e593
BK		 10073 /* Issue MMIO read to ensure card is not in EEH */
10074 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
10075 ipr_wait_for_pci_err_recovery(ioa_cfg);
10076
05a6538a 10077 if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) {
10078 dev_err(&pdev->dev, "The max number of MSIX is %d\n",
10079 IPR_MAX_MSIX_VECTORS);
10080 ipr_number_of_msix = IPR_MAX_MSIX_VECTORS;
10081 }
10082
10083 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
56d6aa33 10084 ipr_enable_msix(ioa_cfg) == 0)
05a6538a 10085 ioa_cfg->intr_flag = IPR_USE_MSIX;
10086 else if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
56d6aa33 10087 ipr_enable_msi(ioa_cfg) == 0)
05a6538a 10088 ioa_cfg->intr_flag = IPR_USE_MSI;
10089 else {
10090 ioa_cfg->intr_flag = IPR_USE_LSI;
10091 ioa_cfg->nvectors = 1;
10092 dev_info(&pdev->dev, "Cannot enable MSI.\n");
10093 }
10094
6270e593
BK		 10095 pci_set_master(pdev);
10096
10097 if (pci_channel_offline(pdev)) {
10098 ipr_wait_for_pci_err_recovery(ioa_cfg);
10099 pci_set_master(pdev);
10100 if (pci_channel_offline(pdev)) {
10101 rc = -EIO;
10102 goto out_msi_disable;
10103 }
10104 }
10105
05a6538a 10106 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
10107 ioa_cfg->intr_flag == IPR_USE_MSIX) {
95fecd90 10108 rc = ipr_test_msi(ioa_cfg, pdev);
05a6538a 10109 if (rc == -EOPNOTSUPP) {
6270e593 10110 ipr_wait_for_pci_err_recovery(ioa_cfg);
05a6538a 10111 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
10112 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
10113 pci_disable_msi(pdev);
10114 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
10115 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
10116 pci_disable_msix(pdev);
10117 }
10118
10119 ioa_cfg->intr_flag = IPR_USE_LSI;
10120 ioa_cfg->nvectors = 1;
10121 }
95fecd90
WB		 10122 else if (rc)
10123 goto out_msi_disable;
05a6538a 10124 else {
10125 if (ioa_cfg->intr_flag == IPR_USE_MSI)
10126 dev_info(&pdev->dev,
10127 "Request for %d MSIs succeeded with starting IRQ: %d\n",
10128 ioa_cfg->nvectors, pdev->irq);
10129 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
10130 dev_info(&pdev->dev,
10131 "Request for %d MSIXs succeeded.",
10132 ioa_cfg->nvectors);
10133 }
10134 }
10135
10136 ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors,
10137 (unsigned int)num_online_cpus(),
10138 (unsigned int)IPR_MAX_HRRQ_NUM);
95fecd90 10139
1da177e4 10140 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
f170c684 10141 goto out_msi_disable;
1da177e4
LT		 10142
10143 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
f170c684 10144 goto out_msi_disable;
1da177e4
LT		 10145
10146 rc = ipr_alloc_mem(ioa_cfg);
10147 if (rc < 0) {
10148 dev_err(&pdev->dev,
10149 "Couldn't allocate enough memory for device driver!\n");
f170c684 10150 goto out_msi_disable;
1da177e4
LT		 10151 }
10152
6270e593
BK		 10153 /* Save away PCI config space for use following IOA reset */
10154 rc = pci_save_state(pdev);
10155
10156 if (rc != PCIBIOS_SUCCESSFUL) {
10157 dev_err(&pdev->dev, "Failed to save PCI config space\n");
10158 rc = -EIO;
10159 goto cleanup_nolog;
10160 }
10161
ce155cce
BK		 10162 /*
10163 * If HRRQ updated interrupt is not masked, or reset alert is set,
10164 * the card is in an unknown state and needs a hard reset
10165 */
214777ba
WB		 10166 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
10167 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
10168 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
ce155cce
BK		 10169 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
10170 ioa_cfg->needs_hard_reset = 1;
5d7c20b7 10171 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
473b1e8e
BK		 10172 ioa_cfg->needs_hard_reset = 1;
10173 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
10174 ioa_cfg->ioa_unit_checked = 1;
ce155cce 10175
56d6aa33 10176 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1da177e4 10177 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
56d6aa33 10178 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4 10179
05a6538a 10180 if (ioa_cfg->intr_flag == IPR_USE_MSI
10181 || ioa_cfg->intr_flag == IPR_USE_MSIX) {
10182 name_msi_vectors(ioa_cfg);
10183 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_isr,
10184 0,
10185 ioa_cfg->vectors_info[0].desc,
10186 &ioa_cfg->hrrq[0]);
10187 if (!rc)
10188 rc = ipr_request_other_msi_irqs(ioa_cfg);
10189 } else {
10190 rc = request_irq(pdev->irq, ipr_isr,
10191 IRQF_SHARED,
10192 IPR_NAME, &ioa_cfg->hrrq[0]);
10193 }
1da177e4
LT		 10194 if (rc) {
10195 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
10196 pdev->irq, rc);
10197 goto cleanup_nolog;
10198 }
10199
463fc696
BK		 10200 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
10201 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
10202 ioa_cfg->needs_warm_reset = 1;
10203 ioa_cfg->reset = ipr_reset_slot_reset;
2796ca5e
BK		 10204
10205 ioa_cfg->reset_work_q = alloc_ordered_workqueue("ipr_reset_%d",
10206 WQ_MEM_RECLAIM, host->host_no);
10207
10208 if (!ioa_cfg->reset_work_q) {
10209 dev_err(&pdev->dev, "Couldn't register reset workqueue\n");
10210 goto out_free_irq;
10211 }
463fc696
BK		 10212 } else
10213 ioa_cfg->reset = ipr_reset_start_bist;
10214
feccada9 10215 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
1da177e4 10216 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
feccada9 10217 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
1da177e4
LT		 10218
10219 LEAVE;
10220out:
10221 return rc;
10222
2796ca5e
BK		 10223out_free_irq:
10224 ipr_free_irqs(ioa_cfg);
1da177e4
LT		 10225cleanup_nolog:
10226 ipr_free_mem(ioa_cfg);
95fecd90 10227out_msi_disable:
6270e593 10228 ipr_wait_for_pci_err_recovery(ioa_cfg);
05a6538a 10229 if (ioa_cfg->intr_flag == IPR_USE_MSI)
10230 pci_disable_msi(pdev);
10231 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
10232 pci_disable_msix(pdev);
f170c684
JL		 10233cleanup_nomem:
10234 iounmap(ipr_regs);
6270e593
BK		 10235out_disable:
10236 pci_disable_device(pdev);
1da177e4
LT		 10237out_release_regions:
10238 pci_release_regions(pdev);
10239out_scsi_host_put:
10240 scsi_host_put(host);
1da177e4
LT		 10241 goto out;
10242}
10243
1da177e4
LT		 10244/**
10245 * ipr_initiate_ioa_bringdown - Bring down an adapter
10246 * @ioa_cfg: ioa config struct
10247 * @shutdown_type: shutdown type
10248 *
10249 * Description: This function will initiate bringing down the adapter.
10250 * This consists of issuing an IOA shutdown to the adapter
10251 * to flush the cache, and running BIST.
10252 * If the caller needs to wait on the completion of the reset,
10253 * the caller must sleep on the reset_wait_q.
10254 *
10255 * Return value:
10256 * none
10257 **/
10258static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
10259 enum ipr_shutdown_type shutdown_type)
10260{
10261 ENTER;
10262 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
10263 ioa_cfg->sdt_state = ABORT_DUMP;
10264 ioa_cfg->reset_retries = 0;
10265 ioa_cfg->in_ioa_bringdown = 1;
10266 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
10267 LEAVE;
10268}
10269
10270/**
10271 * __ipr_remove - Remove a single adapter
10272 * @pdev: pci device struct
10273 *
10274 * Adapter hot plug remove entry point.
10275 *
10276 * Return value:
10277 * none
10278 **/
10279static void __ipr_remove(struct pci_dev *pdev)
10280{
10281 unsigned long host_lock_flags = 0;
10282 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
bfae7820 10283 int i;
feccada9 10284 unsigned long driver_lock_flags;
1da177e4
LT		 10285 ENTER;
10286
10287 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
203fa3fe 10288 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 10289 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10290 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10291 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10292 }
10293
bfae7820
BK		 10294 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
10295 spin_lock(&ioa_cfg->hrrq[i]._lock);
10296 ioa_cfg->hrrq[i].removing_ioa = 1;
10297 spin_unlock(&ioa_cfg->hrrq[i]._lock);
10298 }
10299 wmb();
1da177e4
LT		 10300 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
10301
10302 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10303 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
43829731 10304 flush_work(&ioa_cfg->work_q);
2796ca5e
BK		 10305 if (ioa_cfg->reset_work_q)
10306 flush_workqueue(ioa_cfg->reset_work_q);
9077a944 10307 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
1da177e4
LT		 10308 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10309
feccada9 10310 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
1da177e4 10311 list_del(&ioa_cfg->queue);
feccada9 10312 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
1da177e4
LT		 10313
10314 if (ioa_cfg->sdt_state == ABORT_DUMP)
10315 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
10316 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10317
10318 ipr_free_all_resources(ioa_cfg);
10319
10320 LEAVE;
10321}
10322
10323/**
10324 * ipr_remove - IOA hot plug remove entry point
10325 * @pdev: pci device struct
10326 *
10327 * Adapter hot plug remove entry point.
10328 *
10329 * Return value:
10330 * none
10331 **/
6f039790 10332static void ipr_remove(struct pci_dev *pdev)
1da177e4
LT		 10333{
10334 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10335
10336 ENTER;
10337
ee959b00 10338 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4 10339 &ipr_trace_attr);
ee959b00 10340 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10341 &ipr_dump_attr);
10342 scsi_remove_host(ioa_cfg->host);
10343
10344 __ipr_remove(pdev);
10345
10346 LEAVE;
10347}
10348
10349/**
10350 * ipr_probe - Adapter hot plug add entry point
10351 *
10352 * Return value:
10353 * 0 on success / non-zero on failure
10354 **/
6f039790 10355static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
1da177e4
LT		 10356{
10357 struct ipr_ioa_cfg *ioa_cfg;
b53d124a 10358 int rc, i;
1da177e4
LT		 10359
10360 rc = ipr_probe_ioa(pdev, dev_id);
10361
10362 if (rc)
10363 return rc;
10364
10365 ioa_cfg = pci_get_drvdata(pdev);
10366 rc = ipr_probe_ioa_part2(ioa_cfg);
10367
10368 if (rc) {
10369 __ipr_remove(pdev);
10370 return rc;
10371 }
10372
10373 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
10374
10375 if (rc) {
10376 __ipr_remove(pdev);
10377 return rc;
10378 }
10379
ee959b00 10380 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10381 &ipr_trace_attr);
10382
10383 if (rc) {
10384 scsi_remove_host(ioa_cfg->host);
10385 __ipr_remove(pdev);
10386 return rc;
10387 }
10388
ee959b00 10389 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10390 &ipr_dump_attr);
10391
10392 if (rc) {
ee959b00 10393 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10394 &ipr_trace_attr);
10395 scsi_remove_host(ioa_cfg->host);
10396 __ipr_remove(pdev);
10397 return rc;
10398 }
10399
10400 scsi_scan_host(ioa_cfg->host);
b53d124a 10401 ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight;
10402
89f8b33c 10403 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 10404 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
511cbce2 10405 irq_poll_init(&ioa_cfg->hrrq[i].iopoll,
b53d124a 10406 ioa_cfg->iopoll_weight, ipr_iopoll);
b53d124a 10407 }
10408 }
10409
1da177e4
LT		 10410 schedule_work(&ioa_cfg->work_q);
10411 return 0;
10412}
10413
10414/**
10415 * ipr_shutdown - Shutdown handler.
d18c3db5 10416 * @pdev: pci device struct
1da177e4
LT		 10417 *
10418 * This function is invoked upon system shutdown/reboot. It will issue
10419 * an adapter shutdown to the adapter to flush the write cache.
10420 *
10421 * Return value:
10422 * none
10423 **/
d18c3db5 10424static void ipr_shutdown(struct pci_dev *pdev)
1da177e4 10425{
d18c3db5 10426 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
1da177e4 10427 unsigned long lock_flags = 0;
4fdd7c7a 10428 enum ipr_shutdown_type shutdown_type = IPR_SHUTDOWN_NORMAL;
b53d124a 10429 int i;
1da177e4
LT		 10430
10431 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
89f8b33c 10432 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 10433 ioa_cfg->iopoll_weight = 0;
10434 for (i = 1; i < ioa_cfg->hrrq_num; i++)
511cbce2 10435 irq_poll_disable(&ioa_cfg->hrrq[i].iopoll);
b53d124a 10436 }
10437
203fa3fe 10438 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 10439 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10440 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10441 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10442 }
10443
4fdd7c7a
BK		 10444 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64)
10445 shutdown_type = IPR_SHUTDOWN_QUIESCE;
10446
10447 ipr_initiate_ioa_bringdown(ioa_cfg, shutdown_type);
1da177e4
LT		 10448 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10449 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4fdd7c7a 10450 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) {
2796ca5e 10451 ipr_free_irqs(ioa_cfg);
4fdd7c7a
BK		 10452 pci_disable_device(ioa_cfg->pdev);
10453 }
1da177e4
LT		 10454}
10455
6f039790 10456static struct pci_device_id ipr_pci_table[] = {
1da177e4 10457 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10458 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
1da177e4 10459 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10460 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
1da177e4 10461 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10462 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
1da177e4 10463 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10464 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
1da177e4 10465 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10466 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
1da177e4 10467 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10468 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
1da177e4 10469 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10470 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
86f51436 10471 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
5469cb5b
BK		 10472 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
10473 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 10474 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
6d84c944 10475 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 10476 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
22d2e402
BK		 10477 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10478 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 10479 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
5469cb5b
BK		 10480 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10481 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 10482 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
6d84c944 10483 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 10484 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
22d2e402
BK		 10485 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10486 IPR_USE_LONG_TRANSOP_TIMEOUT},
60e7486b 10487 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
5469cb5b
BK		 10488 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10489 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c 10490 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
22d2e402
BK		 10491 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
10492 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c
BK		 10493 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10494 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
b0f56d3d
WB		 10495 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10496 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
60e7486b 10497 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
5469cb5b 10498 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
463fc696 10499 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
1da177e4 10500 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
6d84c944 10501 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
1da177e4 10502 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
6d84c944 10503 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
86f51436 10504 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 10505 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
10506 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 10507 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 10508 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
10509 IPR_USE_LONG_TRANSOP_TIMEOUT },
d7b4627f
WB		 10510 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10511 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
10512 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10513 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
10514 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10515 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
b8d5d568 10516 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10517 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 },
5a918353
WB		 10518 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10519 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
32622bde
WB		 10520 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10521 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
cd9b3d04 10522 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10523 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
cd9b3d04 10524 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10525 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
cd9b3d04 10526 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10527 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
cd9b3d04
WB		 10528 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10529 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 },
10530 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10531 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
b8d5d568 10532 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10533 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 },
10534 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10535 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 },
10536 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10537 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 },
10538 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10539 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 },
43c5fdaf 10540 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10541 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 },
10542 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
f94d9964
WX		 10543 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 },
10544 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
43c5fdaf 10545 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 },
10546 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10547 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 },
10548 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10549 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 },
10550 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10551 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 },
10552 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10553 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 },
10554 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10555 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 },
5eeac3e9
WX		 10556 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10557 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCA, 0, 0, 0 },
10558 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10559 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CD2, 0, 0, 0 },
10560 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10561 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCD, 0, 0, 0 },
1da177e4
LT		 10562 { }
10563};
10564MODULE_DEVICE_TABLE(pci, ipr_pci_table);
10565
a55b2d21 10566static const struct pci_error_handlers ipr_err_handler = {
f8a88b19 10567 .error_detected = ipr_pci_error_detected,
6270e593 10568 .mmio_enabled = ipr_pci_mmio_enabled,
f8a88b19
LV		 10569 .slot_reset = ipr_pci_slot_reset,
10570};
10571
1da177e4
LT		 10572static struct pci_driver ipr_driver = {
10573 .name = IPR_NAME,
10574 .id_table = ipr_pci_table,
10575 .probe = ipr_probe,
6f039790 10576 .remove = ipr_remove,
d18c3db5 10577 .shutdown = ipr_shutdown,
f8a88b19 10578 .err_handler = &ipr_err_handler,
1da177e4
LT		 10579};
10580
f72919ec
WB		 10581/**
10582 * ipr_halt_done - Shutdown prepare completion
10583 *
10584 * Return value:
10585 * none
10586 **/
10587static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
10588{
05a6538a 10589 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
f72919ec
WB		 10590}
10591
10592/**
10593 * ipr_halt - Issue shutdown prepare to all adapters
10594 *
10595 * Return value:
10596 * NOTIFY_OK on success / NOTIFY_DONE on failure
10597 **/
10598static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
10599{
10600 struct ipr_cmnd *ipr_cmd;
10601 struct ipr_ioa_cfg *ioa_cfg;
feccada9 10602 unsigned long flags = 0, driver_lock_flags;
f72919ec
WB		 10603
10604 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
10605 return NOTIFY_DONE;
10606
feccada9 10607 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
f72919ec
WB		 10608
10609 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
10610 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
4fdd7c7a
BK		 10611 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds ||
10612 (ipr_fast_reboot && event == SYS_RESTART && ioa_cfg->sis64)) {
f72919ec
WB		 10613 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10614 continue;
10615 }
10616
10617 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
10618 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
10619 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
10620 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
10621 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
10622
10623 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
10624 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10625 }
feccada9 10626 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
f72919ec
WB		 10627
10628 return NOTIFY_OK;
10629}
10630
10631static struct notifier_block ipr_notifier = {
10632 ipr_halt, NULL, 0
10633};
10634
1da177e4
LT		 10635/**
10636 * ipr_init - Module entry point
10637 *
10638 * Return value:
10639 * 0 on success / negative value on failure
10640 **/
10641static int __init ipr_init(void)
10642{
10643 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
10644 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
10645
f72919ec 10646 register_reboot_notifier(&ipr_notifier);
dcbccbde 10647 return pci_register_driver(&ipr_driver);
1da177e4
LT		 10648}
10649
10650/**
10651 * ipr_exit - Module unload
10652 *
10653 * Module unload entry point.
10654 *
10655 * Return value:
10656 * none
10657 **/
10658static void __exit ipr_exit(void)
10659{
f72919ec 10660 unregister_reboot_notifier(&ipr_notifier);
1da177e4
LT		 10661 pci_unregister_driver(&ipr_driver);
10662}
10663
10664module_init(ipr_init);
10665module_exit(ipr_exit);
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