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[SCSI] ipr: Get rid of superfluous call to pci_disbale_msi/msix()
[mirror_ubuntu-zesty-kernel.git] / drivers / scsi / ipr.c
CommitLineData
1da177e4
LT		 1/*
2 * ipr.c -- driver for IBM Power Linux RAID adapters
3 *
4 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation
5 *
6 * Copyright (C) 2003, 2004 IBM Corporation
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24/*
25 * Notes:
26 *
27 * This driver is used to control the following SCSI adapters:
28 *
29 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B
30 *
31 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter
32 * PCI-X Dual Channel Ultra 320 SCSI Adapter
33 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card
34 * Embedded SCSI adapter on p615 and p655 systems
35 *
36 * Supported Hardware Features:
37 * - Ultra 320 SCSI controller
38 * - PCI-X host interface
39 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine
40 * - Non-Volatile Write Cache
41 * - Supports attachment of non-RAID disks, tape, and optical devices
42 * - RAID Levels 0, 5, 10
43 * - Hot spare
44 * - Background Parity Checking
45 * - Background Data Scrubbing
46 * - Ability to increase the capacity of an existing RAID 5 disk array
47 * by adding disks
48 *
49 * Driver Features:
50 * - Tagged command queuing
51 * - Adapter microcode download
52 * - PCI hot plug
53 * - SCSI device hot plug
54 *
55 */
56
1da177e4
LT		 57#include <linux/fs.h>
58#include <linux/init.h>
59#include <linux/types.h>
60#include <linux/errno.h>
61#include <linux/kernel.h>
5a0e3ad6 62#include <linux/slab.h>
4d4dd706 63#include <linux/vmalloc.h>
1da177e4
LT		 64#include <linux/ioport.h>
65#include <linux/delay.h>
66#include <linux/pci.h>
67#include <linux/wait.h>
68#include <linux/spinlock.h>
69#include <linux/sched.h>
70#include <linux/interrupt.h>
71#include <linux/blkdev.h>
72#include <linux/firmware.h>
73#include <linux/module.h>
74#include <linux/moduleparam.h>
35a39691 75#include <linux/libata.h>
0ce3a7e5 76#include <linux/hdreg.h>
f72919ec 77#include <linux/reboot.h>
3e7ebdfa 78#include <linux/stringify.h>
1da177e4
LT		 79#include <asm/io.h>
80#include <asm/irq.h>
81#include <asm/processor.h>
82#include <scsi/scsi.h>
83#include <scsi/scsi_host.h>
84#include <scsi/scsi_tcq.h>
85#include <scsi/scsi_eh.h>
86#include <scsi/scsi_cmnd.h>
1da177e4
LT		 87#include "ipr.h"
88
89/*
90 * Global Data
91 */
b7d68ca3 92static LIST_HEAD(ipr_ioa_head);
1da177e4
LT		 93static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
94static unsigned int ipr_max_speed = 1;
95static int ipr_testmode = 0;
96static unsigned int ipr_fastfail = 0;
5469cb5b 97static unsigned int ipr_transop_timeout = 0;
d3c74871 98static unsigned int ipr_debug = 0;
3e7ebdfa 99static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS;
ac09c349 100static unsigned int ipr_dual_ioa_raid = 1;
05a6538a 101static unsigned int ipr_number_of_msix = 2;
1da177e4
LT		 102static DEFINE_SPINLOCK(ipr_driver_lock);
103
104/* This table describes the differences between DMA controller chips */
105static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
60e7486b 106 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
1da177e4 107 .mailbox = 0x0042C,
89aad428 108 .max_cmds = 100,
1da177e4 109 .cache_line_size = 0x20,
7dd21308 110 .clear_isr = 1,
b53d124a 111 .iopoll_weight = 0,
1da177e4
LT		 112 {
113 .set_interrupt_mask_reg = 0x0022C,
114 .clr_interrupt_mask_reg = 0x00230,
214777ba 115 .clr_interrupt_mask_reg32 = 0x00230,
1da177e4 116 .sense_interrupt_mask_reg = 0x0022C,
214777ba 117 .sense_interrupt_mask_reg32 = 0x0022C,
1da177e4 118 .clr_interrupt_reg = 0x00228,
214777ba 119 .clr_interrupt_reg32 = 0x00228,
1da177e4 120 .sense_interrupt_reg = 0x00224,
214777ba 121 .sense_interrupt_reg32 = 0x00224,
1da177e4
LT		 122 .ioarrin_reg = 0x00404,
123 .sense_uproc_interrupt_reg = 0x00214,
214777ba 124 .sense_uproc_interrupt_reg32 = 0x00214,
1da177e4 125 .set_uproc_interrupt_reg = 0x00214,
214777ba
WB		 126 .set_uproc_interrupt_reg32 = 0x00214,
127 .clr_uproc_interrupt_reg = 0x00218,
128 .clr_uproc_interrupt_reg32 = 0x00218
1da177e4
LT		 129 }
130 },
131 { /* Snipe and Scamp */
132 .mailbox = 0x0052C,
89aad428 133 .max_cmds = 100,
1da177e4 134 .cache_line_size = 0x20,
7dd21308 135 .clear_isr = 1,
b53d124a 136 .iopoll_weight = 0,
1da177e4
LT		 137 {
138 .set_interrupt_mask_reg = 0x00288,
139 .clr_interrupt_mask_reg = 0x0028C,
214777ba 140 .clr_interrupt_mask_reg32 = 0x0028C,
1da177e4 141 .sense_interrupt_mask_reg = 0x00288,
214777ba 142 .sense_interrupt_mask_reg32 = 0x00288,
1da177e4 143 .clr_interrupt_reg = 0x00284,
214777ba 144 .clr_interrupt_reg32 = 0x00284,
1da177e4 145 .sense_interrupt_reg = 0x00280,
214777ba 146 .sense_interrupt_reg32 = 0x00280,
1da177e4
LT		 147 .ioarrin_reg = 0x00504,
148 .sense_uproc_interrupt_reg = 0x00290,
214777ba 149 .sense_uproc_interrupt_reg32 = 0x00290,
1da177e4 150 .set_uproc_interrupt_reg = 0x00290,
214777ba
WB		 151 .set_uproc_interrupt_reg32 = 0x00290,
152 .clr_uproc_interrupt_reg = 0x00294,
153 .clr_uproc_interrupt_reg32 = 0x00294
1da177e4
LT		 154 }
155 },
a74c1639 156 { /* CRoC */
110def85 157 .mailbox = 0x00044,
89aad428 158 .max_cmds = 1000,
a74c1639 159 .cache_line_size = 0x20,
7dd21308 160 .clear_isr = 0,
b53d124a 161 .iopoll_weight = 64,
a74c1639
WB		 162 {
163 .set_interrupt_mask_reg = 0x00010,
164 .clr_interrupt_mask_reg = 0x00018,
214777ba 165 .clr_interrupt_mask_reg32 = 0x0001C,
a74c1639 166 .sense_interrupt_mask_reg = 0x00010,
214777ba 167 .sense_interrupt_mask_reg32 = 0x00014,
a74c1639 168 .clr_interrupt_reg = 0x00008,
214777ba 169 .clr_interrupt_reg32 = 0x0000C,
a74c1639 170 .sense_interrupt_reg = 0x00000,
214777ba 171 .sense_interrupt_reg32 = 0x00004,
a74c1639
WB		 172 .ioarrin_reg = 0x00070,
173 .sense_uproc_interrupt_reg = 0x00020,
214777ba 174 .sense_uproc_interrupt_reg32 = 0x00024,
a74c1639 175 .set_uproc_interrupt_reg = 0x00020,
214777ba 176 .set_uproc_interrupt_reg32 = 0x00024,
dcbad00e 177 .clr_uproc_interrupt_reg = 0x00028,
214777ba
WB		 178 .clr_uproc_interrupt_reg32 = 0x0002C,
179 .init_feedback_reg = 0x0005C,
dcbad00e 180 .dump_addr_reg = 0x00064,
8701f185
WB		 181 .dump_data_reg = 0x00068,
182 .endian_swap_reg = 0x00084
a74c1639
WB		 183 }
184 },
1da177e4
LT		 185};
186
187static const struct ipr_chip_t ipr_chip[] = {
cb237ef7
WB		 188 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
189 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
190 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
191 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
192 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
193 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
194 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
195 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
cd9b3d04 196 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
1da177e4
LT		 197};
198
203fa3fe 199static int ipr_max_bus_speeds[] = {
1da177e4
LT		 200 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
201};
202
203MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
204MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
205module_param_named(max_speed, ipr_max_speed, uint, 0);
206MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
207module_param_named(log_level, ipr_log_level, uint, 0);
208MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
209module_param_named(testmode, ipr_testmode, int, 0);
210MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
2cf22be0 211module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
1da177e4
LT		 212MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
213module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
214MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
2cf22be0 215module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
d3c74871 216MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
ac09c349
BK		 217module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
218MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
3e7ebdfa
WB		 219module_param_named(max_devs, ipr_max_devs, int, 0);
220MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
221 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
05a6538a 222module_param_named(number_of_msix, ipr_number_of_msix, int, 0);
6634ff7c 223MODULE_PARM_DESC(number_of_msix, "Specify the number of MSIX interrupts to use on capable adapters (1 - 16). (default:2)");
1da177e4
LT		 224MODULE_LICENSE("GPL");
225MODULE_VERSION(IPR_DRIVER_VERSION);
226
1da177e4
LT		 227/* A constant array of IOASCs/URCs/Error Messages */
228static const
229struct ipr_error_table_t ipr_error_table[] = {
933916f3 230 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 231 "8155: An unknown error was received"},
232 {0x00330000, 0, 0,
233 "Soft underlength error"},
234 {0x005A0000, 0, 0,
235 "Command to be cancelled not found"},
236 {0x00808000, 0, 0,
237 "Qualified success"},
933916f3 238 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 239 "FFFE: Soft device bus error recovered by the IOA"},
933916f3 240 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 241 "4101: Soft device bus fabric error"},
5aa3a333
WB		 242 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
243 "FFFC: Logical block guard error recovered by the device"},
244 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
245 "FFFC: Logical block reference tag error recovered by the device"},
246 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
247 "4171: Recovered scatter list tag / sequence number error"},
248 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
249 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
250 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
251 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
252 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
253 "FFFD: Recovered logical block reference tag error detected by the IOA"},
254 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
255 "FFFD: Logical block guard error recovered by the IOA"},
933916f3 256 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 257 "FFF9: Device sector reassign successful"},
933916f3 258 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 259 "FFF7: Media error recovered by device rewrite procedures"},
933916f3 260 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 261 "7001: IOA sector reassignment successful"},
933916f3 262 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 263 "FFF9: Soft media error. Sector reassignment recommended"},
933916f3 264 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 265 "FFF7: Media error recovered by IOA rewrite procedures"},
933916f3 266 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 267 "FF3D: Soft PCI bus error recovered by the IOA"},
933916f3 268 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 269 "FFF6: Device hardware error recovered by the IOA"},
933916f3 270 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 271 "FFF6: Device hardware error recovered by the device"},
933916f3 272 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 273 "FF3D: Soft IOA error recovered by the IOA"},
933916f3 274 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 275 "FFFA: Undefined device response recovered by the IOA"},
933916f3 276 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 277 "FFF6: Device bus error, message or command phase"},
933916f3 278 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
35a39691 279 "FFFE: Task Management Function failed"},
933916f3 280 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 281 "FFF6: Failure prediction threshold exceeded"},
933916f3 282 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 283 "8009: Impending cache battery pack failure"},
ed7bd661 284 {0x02040100, 0, 0,
285 "Logical Unit in process of becoming ready"},
286 {0x02040200, 0, 0,
287 "Initializing command required"},
1da177e4
LT		 288 {0x02040400, 0, 0,
289 "34FF: Disk device format in progress"},
ed7bd661 290 {0x02040C00, 0, 0,
291 "Logical unit not accessible, target port in unavailable state"},
65f56475
BK		 292 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
293 "9070: IOA requested reset"},
1da177e4
LT		 294 {0x023F0000, 0, 0,
295 "Synchronization required"},
ed7bd661 296 {0x02408500, 0, 0,
297 "IOA microcode download required"},
298 {0x02408600, 0, 0,
299 "Device bus connection is prohibited by host"},
1da177e4
LT		 300 {0x024E0000, 0, 0,
301 "No ready, IOA shutdown"},
302 {0x025A0000, 0, 0,
303 "Not ready, IOA has been shutdown"},
933916f3 304 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 305 "3020: Storage subsystem configuration error"},
306 {0x03110B00, 0, 0,
307 "FFF5: Medium error, data unreadable, recommend reassign"},
308 {0x03110C00, 0, 0,
309 "7000: Medium error, data unreadable, do not reassign"},
933916f3 310 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 311 "FFF3: Disk media format bad"},
933916f3 312 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 313 "3002: Addressed device failed to respond to selection"},
933916f3 314 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 315 "3100: Device bus error"},
933916f3 316 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 317 "3109: IOA timed out a device command"},
318 {0x04088000, 0, 0,
319 "3120: SCSI bus is not operational"},
933916f3 320 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 321 "4100: Hard device bus fabric error"},
5aa3a333
WB		 322 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
323 "310C: Logical block guard error detected by the device"},
324 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
325 "310C: Logical block reference tag error detected by the device"},
326 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
327 "4170: Scatter list tag / sequence number error"},
328 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
329 "8150: Logical block CRC error on IOA to Host transfer"},
330 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
331 "4170: Logical block sequence number error on IOA to Host transfer"},
332 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
333 "310D: Logical block reference tag error detected by the IOA"},
334 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
335 "310D: Logical block guard error detected by the IOA"},
933916f3 336 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 337 "9000: IOA reserved area data check"},
933916f3 338 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 339 "9001: IOA reserved area invalid data pattern"},
933916f3 340 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 341 "9002: IOA reserved area LRC error"},
5aa3a333
WB		 342 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
343 "Hardware Error, IOA metadata access error"},
933916f3 344 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 345 "102E: Out of alternate sectors for disk storage"},
933916f3 346 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 347 "FFF4: Data transfer underlength error"},
933916f3 348 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 349 "FFF4: Data transfer overlength error"},
933916f3 350 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 351 "3400: Logical unit failure"},
933916f3 352 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 353 "FFF4: Device microcode is corrupt"},
933916f3 354 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 355 "8150: PCI bus error"},
356 {0x04430000, 1, 0,
357 "Unsupported device bus message received"},
933916f3 358 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 359 "FFF4: Disk device problem"},
933916f3 360 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 361 "8150: Permanent IOA failure"},
933916f3 362 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 363 "3010: Disk device returned wrong response to IOA"},
933916f3 364 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 365 "8151: IOA microcode error"},
366 {0x04448500, 0, 0,
367 "Device bus status error"},
933916f3 368 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 369 "8157: IOA error requiring IOA reset to recover"},
35a39691
BK		 370 {0x04448700, 0, 0,
371 "ATA device status error"},
1da177e4
LT		 372 {0x04490000, 0, 0,
373 "Message reject received from the device"},
933916f3 374 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 375 "8008: A permanent cache battery pack failure occurred"},
933916f3 376 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 377 "9090: Disk unit has been modified after the last known status"},
933916f3 378 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 379 "9081: IOA detected device error"},
933916f3 380 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 381 "9082: IOA detected device error"},
933916f3 382 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 383 "3110: Device bus error, message or command phase"},
933916f3 384 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
35a39691 385 "3110: SAS Command / Task Management Function failed"},
933916f3 386 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 387 "9091: Incorrect hardware configuration change has been detected"},
933916f3 388 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 389 "9073: Invalid multi-adapter configuration"},
933916f3 390 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 391 "4010: Incorrect connection between cascaded expanders"},
933916f3 392 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 393 "4020: Connections exceed IOA design limits"},
933916f3 394 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 395 "4030: Incorrect multipath connection"},
933916f3 396 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 397 "4110: Unsupported enclosure function"},
ed7bd661 398 {0x04679800, 0, IPR_DEFAULT_LOG_LEVEL,
399 "4120: SAS cable VPD cannot be read"},
933916f3 400 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 401 "FFF4: Command to logical unit failed"},
402 {0x05240000, 1, 0,
403 "Illegal request, invalid request type or request packet"},
404 {0x05250000, 0, 0,
405 "Illegal request, invalid resource handle"},
b0df54bb
BK		 406 {0x05258000, 0, 0,
407 "Illegal request, commands not allowed to this device"},
408 {0x05258100, 0, 0,
409 "Illegal request, command not allowed to a secondary adapter"},
5aa3a333
WB		 410 {0x05258200, 0, 0,
411 "Illegal request, command not allowed to a non-optimized resource"},
1da177e4
LT		 412 {0x05260000, 0, 0,
413 "Illegal request, invalid field in parameter list"},
414 {0x05260100, 0, 0,
415 "Illegal request, parameter not supported"},
416 {0x05260200, 0, 0,
417 "Illegal request, parameter value invalid"},
418 {0x052C0000, 0, 0,
419 "Illegal request, command sequence error"},
b0df54bb
BK		 420 {0x052C8000, 1, 0,
421 "Illegal request, dual adapter support not enabled"},
ed7bd661 422 {0x052C8100, 1, 0,
423 "Illegal request, another cable connector was physically disabled"},
424 {0x054E8000, 1, 0,
425 "Illegal request, inconsistent group id/group count"},
933916f3 426 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 427 "9031: Array protection temporarily suspended, protection resuming"},
933916f3 428 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 429 "9040: Array protection temporarily suspended, protection resuming"},
ed7bd661 430 {0x060B0100, 0, IPR_DEFAULT_LOG_LEVEL,
431 "4080: IOA exceeded maximum operating temperature"},
432 {0x060B8000, 0, IPR_DEFAULT_LOG_LEVEL,
433 "4085: Service required"},
933916f3 434 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 435 "3140: Device bus not ready to ready transition"},
933916f3 436 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 437 "FFFB: SCSI bus was reset"},
438 {0x06290500, 0, 0,
439 "FFFE: SCSI bus transition to single ended"},
440 {0x06290600, 0, 0,
441 "FFFE: SCSI bus transition to LVD"},
933916f3 442 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 443 "FFFB: SCSI bus was reset by another initiator"},
933916f3 444 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 445 "3029: A device replacement has occurred"},
ed7bd661 446 {0x063F8300, 0, IPR_DEFAULT_LOG_LEVEL,
447 "4102: Device bus fabric performance degradation"},
933916f3 448 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 449 "9051: IOA cache data exists for a missing or failed device"},
933916f3 450 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 451 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
933916f3 452 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 453 "9025: Disk unit is not supported at its physical location"},
933916f3 454 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 455 "3020: IOA detected a SCSI bus configuration error"},
933916f3 456 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 457 "3150: SCSI bus configuration error"},
933916f3 458 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 459 "9074: Asymmetric advanced function disk configuration"},
933916f3 460 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 461 "4040: Incomplete multipath connection between IOA and enclosure"},
933916f3 462 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 463 "4041: Incomplete multipath connection between enclosure and device"},
933916f3 464 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 465 "9075: Incomplete multipath connection between IOA and remote IOA"},
933916f3 466 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 467 "9076: Configuration error, missing remote IOA"},
933916f3 468 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 469 "4050: Enclosure does not support a required multipath function"},
ed7bd661 470 {0x06679800, 0, IPR_DEFAULT_LOG_LEVEL,
471 "4121: Configuration error, required cable is missing"},
472 {0x06679900, 0, IPR_DEFAULT_LOG_LEVEL,
473 "4122: Cable is not plugged into the correct location on remote IOA"},
474 {0x06679A00, 0, IPR_DEFAULT_LOG_LEVEL,
475 "4123: Configuration error, invalid cable vital product data"},
476 {0x06679B00, 0, IPR_DEFAULT_LOG_LEVEL,
477 "4124: Configuration error, both cable ends are plugged into the same IOA"},
b75424fc
WB		 478 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
479 "4070: Logically bad block written on device"},
933916f3 480 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 481 "9041: Array protection temporarily suspended"},
933916f3 482 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 483 "9042: Corrupt array parity detected on specified device"},
933916f3 484 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 485 "9030: Array no longer protected due to missing or failed disk unit"},
933916f3 486 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 487 "9071: Link operational transition"},
933916f3 488 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 489 "9072: Link not operational transition"},
933916f3 490 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 491 "9032: Array exposed but still protected"},
e435340c
BK		 492 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
493 "70DD: Device forced failed by disrupt device command"},
933916f3 494 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 495 "4061: Multipath redundancy level got better"},
933916f3 496 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 497 "4060: Multipath redundancy level got worse"},
1da177e4
LT		 498 {0x07270000, 0, 0,
499 "Failure due to other device"},
933916f3 500 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 501 "9008: IOA does not support functions expected by devices"},
933916f3 502 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 503 "9010: Cache data associated with attached devices cannot be found"},
933916f3 504 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 505 "9011: Cache data belongs to devices other than those attached"},
933916f3 506 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 507 "9020: Array missing 2 or more devices with only 1 device present"},
933916f3 508 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 509 "9021: Array missing 2 or more devices with 2 or more devices present"},
933916f3 510 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 511 "9022: Exposed array is missing a required device"},
933916f3 512 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 513 "9023: Array member(s) not at required physical locations"},
933916f3 514 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 515 "9024: Array not functional due to present hardware configuration"},
933916f3 516 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 517 "9026: Array not functional due to present hardware configuration"},
933916f3 518 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 519 "9027: Array is missing a device and parity is out of sync"},
933916f3 520 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 521 "9028: Maximum number of arrays already exist"},
933916f3 522 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 523 "9050: Required cache data cannot be located for a disk unit"},
933916f3 524 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 525 "9052: Cache data exists for a device that has been modified"},
933916f3 526 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 527 "9054: IOA resources not available due to previous problems"},
933916f3 528 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 529 "9092: Disk unit requires initialization before use"},
933916f3 530 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 531 "9029: Incorrect hardware configuration change has been detected"},
933916f3 532 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 533 "9060: One or more disk pairs are missing from an array"},
933916f3 534 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 535 "9061: One or more disks are missing from an array"},
933916f3 536 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 537 "9062: One or more disks are missing from an array"},
933916f3 538 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 539 "9063: Maximum number of functional arrays has been exceeded"},
ed7bd661 540 {0x07279A00, 0, 0,
541 "Data protect, other volume set problem"},
1da177e4
LT		 542 {0x0B260000, 0, 0,
543 "Aborted command, invalid descriptor"},
ed7bd661 544 {0x0B3F9000, 0, 0,
545 "Target operating conditions have changed, dual adapter takeover"},
546 {0x0B530200, 0, 0,
547 "Aborted command, medium removal prevented"},
1da177e4 548 {0x0B5A0000, 0, 0,
ed7bd661 549 "Command terminated by host"},
550 {0x0B5B8000, 0, 0,
551 "Aborted command, command terminated by host"}
1da177e4
LT		 552};
553
554static const struct ipr_ses_table_entry ipr_ses_table[] = {
555 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
556 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
557 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
558 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
559 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
560 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
561 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
562 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
563 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
564 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
565 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
566 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
567 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
568};
569
570/*
571 * Function Prototypes
572 */
573static int ipr_reset_alert(struct ipr_cmnd *);
574static void ipr_process_ccn(struct ipr_cmnd *);
575static void ipr_process_error(struct ipr_cmnd *);
576static void ipr_reset_ioa_job(struct ipr_cmnd *);
577static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
578 enum ipr_shutdown_type);
579
580#ifdef CONFIG_SCSI_IPR_TRACE
581/**
582 * ipr_trc_hook - Add a trace entry to the driver trace
583 * @ipr_cmd: ipr command struct
584 * @type: trace type
585 * @add_data: additional data
586 *
587 * Return value:
588 * none
589 **/
590static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
591 u8 type, u32 add_data)
592{
593 struct ipr_trace_entry *trace_entry;
594 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
595
56d6aa33 596 trace_entry = &ioa_cfg->trace[atomic_add_return
597 (1, &ioa_cfg->trace_index)%IPR_NUM_TRACE_ENTRIES];
1da177e4
LT		 598 trace_entry->time = jiffies;
599 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
600 trace_entry->type = type;
a32c055f
WB		 601 if (ipr_cmd->ioa_cfg->sis64)
602 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
603 else
604 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
35a39691 605 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
1da177e4
LT		 606 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
607 trace_entry->u.add_data = add_data;
56d6aa33 608 wmb();
1da177e4
LT		 609}
610#else
203fa3fe 611#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while (0)
1da177e4
LT		 612#endif
613
172cd6e1
BK		 614/**
615 * ipr_lock_and_done - Acquire lock and complete command
616 * @ipr_cmd: ipr command struct
617 *
618 * Return value:
619 * none
620 **/
621static void ipr_lock_and_done(struct ipr_cmnd *ipr_cmd)
622{
623 unsigned long lock_flags;
624 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
625
626 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
627 ipr_cmd->done(ipr_cmd);
628 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
629}
630
1da177e4
LT		 631/**
632 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
633 * @ipr_cmd: ipr command struct
634 *
635 * Return value:
636 * none
637 **/
638static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
639{
640 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00
WB		 641 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
642 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
a32c055f 643 dma_addr_t dma_addr = ipr_cmd->dma_addr;
05a6538a 644 int hrrq_id;
1da177e4 645
05a6538a 646 hrrq_id = ioarcb->cmd_pkt.hrrq_id;
1da177e4 647 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
05a6538a 648 ioarcb->cmd_pkt.hrrq_id = hrrq_id;
a32c055f 649 ioarcb->data_transfer_length = 0;
1da177e4 650 ioarcb->read_data_transfer_length = 0;
a32c055f 651 ioarcb->ioadl_len = 0;
1da177e4 652 ioarcb->read_ioadl_len = 0;
a32c055f 653
96d21f00 654 if (ipr_cmd->ioa_cfg->sis64) {
a32c055f
WB		 655 ioarcb->u.sis64_addr_data.data_ioadl_addr =
656 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
96d21f00
WB		 657 ioasa64->u.gata.status = 0;
658 } else {
a32c055f
WB		 659 ioarcb->write_ioadl_addr =
660 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
661 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
96d21f00 662 ioasa->u.gata.status = 0;
a32c055f
WB		 663 }
664
96d21f00
WB		 665 ioasa->hdr.ioasc = 0;
666 ioasa->hdr.residual_data_len = 0;
1da177e4 667 ipr_cmd->scsi_cmd = NULL;
35a39691 668 ipr_cmd->qc = NULL;
1da177e4
LT		 669 ipr_cmd->sense_buffer[0] = 0;
670 ipr_cmd->dma_use_sg = 0;
671}
672
673/**
674 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
675 * @ipr_cmd: ipr command struct
676 *
677 * Return value:
678 * none
679 **/
172cd6e1
BK		 680static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd,
681 void (*fast_done) (struct ipr_cmnd *))
1da177e4
LT		 682{
683 ipr_reinit_ipr_cmnd(ipr_cmd);
684 ipr_cmd->u.scratch = 0;
685 ipr_cmd->sibling = NULL;
172cd6e1 686 ipr_cmd->fast_done = fast_done;
1da177e4
LT		 687 init_timer(&ipr_cmd->timer);
688}
689
690/**
00bfef2c 691 * __ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
1da177e4
LT		 692 * @ioa_cfg: ioa config struct
693 *
694 * Return value:
695 * pointer to ipr command struct
696 **/
697static
05a6538a 698struct ipr_cmnd *__ipr_get_free_ipr_cmnd(struct ipr_hrr_queue *hrrq)
1da177e4 699{
05a6538a 700 struct ipr_cmnd *ipr_cmd = NULL;
701
702 if (likely(!list_empty(&hrrq->hrrq_free_q))) {
703 ipr_cmd = list_entry(hrrq->hrrq_free_q.next,
704 struct ipr_cmnd, queue);
705 list_del(&ipr_cmd->queue);
706 }
1da177e4 707
1da177e4
LT		 708
709 return ipr_cmd;
710}
711
00bfef2c
BK		 712/**
713 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block and initialize it
714 * @ioa_cfg: ioa config struct
715 *
716 * Return value:
717 * pointer to ipr command struct
718 **/
719static
720struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
721{
05a6538a 722 struct ipr_cmnd *ipr_cmd =
723 __ipr_get_free_ipr_cmnd(&ioa_cfg->hrrq[IPR_INIT_HRRQ]);
172cd6e1 724 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
00bfef2c
BK		 725 return ipr_cmd;
726}
727
1da177e4
LT		 728/**
729 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
730 * @ioa_cfg: ioa config struct
731 * @clr_ints: interrupts to clear
732 *
733 * This function masks all interrupts on the adapter, then clears the
734 * interrupts specified in the mask
735 *
736 * Return value:
737 * none
738 **/
739static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
740 u32 clr_ints)
741{
742 volatile u32 int_reg;
56d6aa33 743 int i;
1da177e4
LT		 744
745 /* Stop new interrupts */
56d6aa33 746 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
747 spin_lock(&ioa_cfg->hrrq[i]._lock);
748 ioa_cfg->hrrq[i].allow_interrupts = 0;
749 spin_unlock(&ioa_cfg->hrrq[i]._lock);
750 }
751 wmb();
1da177e4
LT		 752
753 /* Set interrupt mask to stop all new interrupts */
214777ba
WB		 754 if (ioa_cfg->sis64)
755 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
756 else
757 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
1da177e4
LT		 758
759 /* Clear any pending interrupts */
214777ba
WB		 760 if (ioa_cfg->sis64)
761 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
762 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
1da177e4
LT		 763 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
764}
765
766/**
767 * ipr_save_pcix_cmd_reg - Save PCI-X command register
768 * @ioa_cfg: ioa config struct
769 *
770 * Return value:
771 * 0 on success / -EIO on failure
772 **/
773static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
774{
775 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
776
7dce0e1c
BK		 777 if (pcix_cmd_reg == 0)
778 return 0;
1da177e4
LT		 779
780 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
781 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
782 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
783 return -EIO;
784 }
785
786 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
787 return 0;
788}
789
790/**
791 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
792 * @ioa_cfg: ioa config struct
793 *
794 * Return value:
795 * 0 on success / -EIO on failure
796 **/
797static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
798{
799 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
800
801 if (pcix_cmd_reg) {
802 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
803 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
804 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
805 return -EIO;
806 }
1da177e4
LT		 807 }
808
809 return 0;
810}
811
35a39691
BK		 812/**
813 * ipr_sata_eh_done - done function for aborted SATA commands
814 * @ipr_cmd: ipr command struct
815 *
816 * This function is invoked for ops generated to SATA
817 * devices which are being aborted.
818 *
819 * Return value:
820 * none
821 **/
822static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
823{
35a39691
BK		 824 struct ata_queued_cmd *qc = ipr_cmd->qc;
825 struct ipr_sata_port *sata_port = qc->ap->private_data;
826
827 qc->err_mask |= AC_ERR_OTHER;
828 sata_port->ioasa.status |= ATA_BUSY;
05a6538a 829 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
35a39691
BK		 830 ata_qc_complete(qc);
831}
832
1da177e4
LT		 833/**
834 * ipr_scsi_eh_done - mid-layer done function for aborted ops
835 * @ipr_cmd: ipr command struct
836 *
837 * This function is invoked by the interrupt handler for
838 * ops generated by the SCSI mid-layer which are being aborted.
839 *
840 * Return value:
841 * none
842 **/
843static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
844{
1da177e4
LT		 845 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
846
847 scsi_cmd->result |= (DID_ERROR << 16);
848
63015bc9 849 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4 850 scsi_cmd->scsi_done(scsi_cmd);
05a6538a 851 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 852}
853
854/**
855 * ipr_fail_all_ops - Fails all outstanding ops.
856 * @ioa_cfg: ioa config struct
857 *
858 * This function fails all outstanding ops.
859 *
860 * Return value:
861 * none
862 **/
863static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
864{
865 struct ipr_cmnd *ipr_cmd, *temp;
05a6538a 866 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 867
868 ENTER;
05a6538a 869 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 870 spin_lock(&hrrq->_lock);
05a6538a 871 list_for_each_entry_safe(ipr_cmd,
872 temp, &hrrq->hrrq_pending_q, queue) {
873 list_del(&ipr_cmd->queue);
1da177e4 874
05a6538a 875 ipr_cmd->s.ioasa.hdr.ioasc =
876 cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
877 ipr_cmd->s.ioasa.hdr.ilid =
878 cpu_to_be32(IPR_DRIVER_ILID);
1da177e4 879
05a6538a 880 if (ipr_cmd->scsi_cmd)
881 ipr_cmd->done = ipr_scsi_eh_done;
882 else if (ipr_cmd->qc)
883 ipr_cmd->done = ipr_sata_eh_done;
1da177e4 884
05a6538a 885 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH,
886 IPR_IOASC_IOA_WAS_RESET);
887 del_timer(&ipr_cmd->timer);
888 ipr_cmd->done(ipr_cmd);
889 }
56d6aa33 890 spin_unlock(&hrrq->_lock);
1da177e4 891 }
1da177e4
LT		 892 LEAVE;
893}
894
a32c055f
WB		 895/**
896 * ipr_send_command - Send driver initiated requests.
897 * @ipr_cmd: ipr command struct
898 *
899 * This function sends a command to the adapter using the correct write call.
900 * In the case of sis64, calculate the ioarcb size required. Then or in the
901 * appropriate bits.
902 *
903 * Return value:
904 * none
905 **/
906static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
907{
908 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
909 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
910
911 if (ioa_cfg->sis64) {
912 /* The default size is 256 bytes */
913 send_dma_addr |= 0x1;
914
915 /* If the number of ioadls * size of ioadl > 128 bytes,
916 then use a 512 byte ioarcb */
917 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
918 send_dma_addr |= 0x4;
919 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
920 } else
921 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
922}
923
1da177e4
LT		 924/**
925 * ipr_do_req - Send driver initiated requests.
926 * @ipr_cmd: ipr command struct
927 * @done: done function
928 * @timeout_func: timeout function
929 * @timeout: timeout value
930 *
931 * This function sends the specified command to the adapter with the
932 * timeout given. The done function is invoked on command completion.
933 *
934 * Return value:
935 * none
936 **/
937static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
938 void (*done) (struct ipr_cmnd *),
939 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
940{
05a6538a 941 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 942
943 ipr_cmd->done = done;
944
945 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
946 ipr_cmd->timer.expires = jiffies + timeout;
947 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
948
949 add_timer(&ipr_cmd->timer);
950
951 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
952
a32c055f 953 ipr_send_command(ipr_cmd);
1da177e4
LT		 954}
955
956/**
957 * ipr_internal_cmd_done - Op done function for an internally generated op.
958 * @ipr_cmd: ipr command struct
959 *
960 * This function is the op done function for an internally generated,
961 * blocking op. It simply wakes the sleeping thread.
962 *
963 * Return value:
964 * none
965 **/
966static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
967{
968 if (ipr_cmd->sibling)
969 ipr_cmd->sibling = NULL;
970 else
971 complete(&ipr_cmd->completion);
972}
973
a32c055f
WB		 974/**
975 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
976 * @ipr_cmd: ipr command struct
977 * @dma_addr: dma address
978 * @len: transfer length
979 * @flags: ioadl flag value
980 *
981 * This function initializes an ioadl in the case where there is only a single
982 * descriptor.
983 *
984 * Return value:
985 * nothing
986 **/
987static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
988 u32 len, int flags)
989{
990 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
991 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
992
993 ipr_cmd->dma_use_sg = 1;
994
995 if (ipr_cmd->ioa_cfg->sis64) {
996 ioadl64->flags = cpu_to_be32(flags);
997 ioadl64->data_len = cpu_to_be32(len);
998 ioadl64->address = cpu_to_be64(dma_addr);
999
1000 ipr_cmd->ioarcb.ioadl_len =
1001 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
1002 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1003 } else {
1004 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
1005 ioadl->address = cpu_to_be32(dma_addr);
1006
1007 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
1008 ipr_cmd->ioarcb.read_ioadl_len =
1009 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1010 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
1011 } else {
1012 ipr_cmd->ioarcb.ioadl_len =
1013 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1014 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1015 }
1016 }
1017}
1018
1da177e4
LT		 1019/**
1020 * ipr_send_blocking_cmd - Send command and sleep on its completion.
1021 * @ipr_cmd: ipr command struct
1022 * @timeout_func: function to invoke if command times out
1023 * @timeout: timeout
1024 *
1025 * Return value:
1026 * none
1027 **/
1028static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
1029 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
1030 u32 timeout)
1031{
1032 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1033
1034 init_completion(&ipr_cmd->completion);
1035 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
1036
1037 spin_unlock_irq(ioa_cfg->host->host_lock);
1038 wait_for_completion(&ipr_cmd->completion);
1039 spin_lock_irq(ioa_cfg->host->host_lock);
1040}
1041
05a6538a 1042static int ipr_get_hrrq_index(struct ipr_ioa_cfg *ioa_cfg)
1043{
1044 if (ioa_cfg->hrrq_num == 1)
56d6aa33 1045 return 0;
1046 else
1047 return (atomic_add_return(1, &ioa_cfg->hrrq_index) % (ioa_cfg->hrrq_num - 1)) + 1;
05a6538a 1048}
1049
1da177e4
LT		 1050/**
1051 * ipr_send_hcam - Send an HCAM to the adapter.
1052 * @ioa_cfg: ioa config struct
1053 * @type: HCAM type
1054 * @hostrcb: hostrcb struct
1055 *
1056 * This function will send a Host Controlled Async command to the adapter.
1057 * If HCAMs are currently not allowed to be issued to the adapter, it will
1058 * place the hostrcb on the free queue.
1059 *
1060 * Return value:
1061 * none
1062 **/
1063static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
1064 struct ipr_hostrcb *hostrcb)
1065{
1066 struct ipr_cmnd *ipr_cmd;
1067 struct ipr_ioarcb *ioarcb;
1068
56d6aa33 1069 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
1da177e4 1070 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
05a6538a 1071 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 1072 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
1073
1074 ipr_cmd->u.hostrcb = hostrcb;
1075 ioarcb = &ipr_cmd->ioarcb;
1076
1077 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1078 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
1079 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
1080 ioarcb->cmd_pkt.cdb[1] = type;
1081 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
1082 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
1083
a32c055f
WB		 1084 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
1085 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 1086
1087 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
1088 ipr_cmd->done = ipr_process_ccn;
1089 else
1090 ipr_cmd->done = ipr_process_error;
1091
1092 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
1093
a32c055f 1094 ipr_send_command(ipr_cmd);
1da177e4
LT		 1095 } else {
1096 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
1097 }
1098}
1099
3e7ebdfa
WB		 1100/**
1101 * ipr_update_ata_class - Update the ata class in the resource entry
1102 * @res: resource entry struct
1103 * @proto: cfgte device bus protocol value
1104 *
1105 * Return value:
1106 * none
1107 **/
1108static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1109{
203fa3fe 1110 switch (proto) {
3e7ebdfa
WB		 1111 case IPR_PROTO_SATA:
1112 case IPR_PROTO_SAS_STP:
1113 res->ata_class = ATA_DEV_ATA;
1114 break;
1115 case IPR_PROTO_SATA_ATAPI:
1116 case IPR_PROTO_SAS_STP_ATAPI:
1117 res->ata_class = ATA_DEV_ATAPI;
1118 break;
1119 default:
1120 res->ata_class = ATA_DEV_UNKNOWN;
1121 break;
1122 };
1123}
1124
1da177e4
LT		 1125/**
1126 * ipr_init_res_entry - Initialize a resource entry struct.
1127 * @res: resource entry struct
3e7ebdfa 1128 * @cfgtew: config table entry wrapper struct
1da177e4
LT		 1129 *
1130 * Return value:
1131 * none
1132 **/
3e7ebdfa
WB		 1133static void ipr_init_res_entry(struct ipr_resource_entry *res,
1134 struct ipr_config_table_entry_wrapper *cfgtew)
1da177e4 1135{
3e7ebdfa
WB		 1136 int found = 0;
1137 unsigned int proto;
1138 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1139 struct ipr_resource_entry *gscsi_res = NULL;
1140
ee0a90fa 1141 res->needs_sync_complete = 0;
1da177e4
LT		 1142 res->in_erp = 0;
1143 res->add_to_ml = 0;
1144 res->del_from_ml = 0;
1145 res->resetting_device = 0;
0b1f8d44 1146 res->reset_occurred = 0;
1da177e4 1147 res->sdev = NULL;
35a39691 1148 res->sata_port = NULL;
3e7ebdfa
WB		 1149
1150 if (ioa_cfg->sis64) {
1151 proto = cfgtew->u.cfgte64->proto;
1152 res->res_flags = cfgtew->u.cfgte64->res_flags;
1153 res->qmodel = IPR_QUEUEING_MODEL64(res);
438b0331 1154 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1155
1156 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1157 sizeof(res->res_path));
1158
1159 res->bus = 0;
0cb992ed
WB		 1160 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1161 sizeof(res->dev_lun.scsi_lun));
3e7ebdfa
WB		 1162 res->lun = scsilun_to_int(&res->dev_lun);
1163
1164 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1165 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1166 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1167 found = 1;
1168 res->target = gscsi_res->target;
1169 break;
1170 }
1171 }
1172 if (!found) {
1173 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1174 ioa_cfg->max_devs_supported);
1175 set_bit(res->target, ioa_cfg->target_ids);
1176 }
3e7ebdfa
WB		 1177 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1178 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1179 res->target = 0;
1180 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1181 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1182 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1183 ioa_cfg->max_devs_supported);
1184 set_bit(res->target, ioa_cfg->array_ids);
1185 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1186 res->bus = IPR_VSET_VIRTUAL_BUS;
1187 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1188 ioa_cfg->max_devs_supported);
1189 set_bit(res->target, ioa_cfg->vset_ids);
1190 } else {
1191 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1192 ioa_cfg->max_devs_supported);
1193 set_bit(res->target, ioa_cfg->target_ids);
1194 }
1195 } else {
1196 proto = cfgtew->u.cfgte->proto;
1197 res->qmodel = IPR_QUEUEING_MODEL(res);
1198 res->flags = cfgtew->u.cfgte->flags;
1199 if (res->flags & IPR_IS_IOA_RESOURCE)
1200 res->type = IPR_RES_TYPE_IOAFP;
1201 else
1202 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1203
1204 res->bus = cfgtew->u.cfgte->res_addr.bus;
1205 res->target = cfgtew->u.cfgte->res_addr.target;
1206 res->lun = cfgtew->u.cfgte->res_addr.lun;
46d74563 1207 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
3e7ebdfa
WB		 1208 }
1209
1210 ipr_update_ata_class(res, proto);
1211}
1212
1213/**
1214 * ipr_is_same_device - Determine if two devices are the same.
1215 * @res: resource entry struct
1216 * @cfgtew: config table entry wrapper struct
1217 *
1218 * Return value:
1219 * 1 if the devices are the same / 0 otherwise
1220 **/
1221static int ipr_is_same_device(struct ipr_resource_entry *res,
1222 struct ipr_config_table_entry_wrapper *cfgtew)
1223{
1224 if (res->ioa_cfg->sis64) {
1225 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1226 sizeof(cfgtew->u.cfgte64->dev_id)) &&
0cb992ed 1227 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
3e7ebdfa
WB		 1228 sizeof(cfgtew->u.cfgte64->lun))) {
1229 return 1;
1230 }
1231 } else {
1232 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1233 res->target == cfgtew->u.cfgte->res_addr.target &&
1234 res->lun == cfgtew->u.cfgte->res_addr.lun)
1235 return 1;
1236 }
1237
1238 return 0;
1239}
1240
1241/**
b3b3b407 1242 * __ipr_format_res_path - Format the resource path for printing.
3e7ebdfa
WB		 1243 * @res_path: resource path
1244 * @buf: buffer
b3b3b407 1245 * @len: length of buffer provided
3e7ebdfa
WB		 1246 *
1247 * Return value:
1248 * pointer to buffer
1249 **/
b3b3b407 1250static char *__ipr_format_res_path(u8 *res_path, char *buffer, int len)
3e7ebdfa
WB		 1251{
1252 int i;
5adcbeb3 1253 char *p = buffer;
3e7ebdfa 1254
46d74563 1255 *p = '\0';
5adcbeb3
WB		 1256 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1257 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1258 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
3e7ebdfa
WB		 1259
1260 return buffer;
1261}
1262
b3b3b407
BK		 1263/**
1264 * ipr_format_res_path - Format the resource path for printing.
1265 * @ioa_cfg: ioa config struct
1266 * @res_path: resource path
1267 * @buf: buffer
1268 * @len: length of buffer provided
1269 *
1270 * Return value:
1271 * pointer to buffer
1272 **/
1273static char *ipr_format_res_path(struct ipr_ioa_cfg *ioa_cfg,
1274 u8 *res_path, char *buffer, int len)
1275{
1276 char *p = buffer;
1277
1278 *p = '\0';
1279 p += snprintf(p, buffer + len - p, "%d/", ioa_cfg->host->host_no);
1280 __ipr_format_res_path(res_path, p, len - (buffer - p));
1281 return buffer;
1282}
1283
3e7ebdfa
WB		 1284/**
1285 * ipr_update_res_entry - Update the resource entry.
1286 * @res: resource entry struct
1287 * @cfgtew: config table entry wrapper struct
1288 *
1289 * Return value:
1290 * none
1291 **/
1292static void ipr_update_res_entry(struct ipr_resource_entry *res,
1293 struct ipr_config_table_entry_wrapper *cfgtew)
1294{
1295 char buffer[IPR_MAX_RES_PATH_LENGTH];
1296 unsigned int proto;
1297 int new_path = 0;
1298
1299 if (res->ioa_cfg->sis64) {
1300 res->flags = cfgtew->u.cfgte64->flags;
1301 res->res_flags = cfgtew->u.cfgte64->res_flags;
75576bb9 1302 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1303
1304 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1305 sizeof(struct ipr_std_inq_data));
1306
1307 res->qmodel = IPR_QUEUEING_MODEL64(res);
1308 proto = cfgtew->u.cfgte64->proto;
1309 res->res_handle = cfgtew->u.cfgte64->res_handle;
1310 res->dev_id = cfgtew->u.cfgte64->dev_id;
1311
1312 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1313 sizeof(res->dev_lun.scsi_lun));
1314
1315 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1316 sizeof(res->res_path))) {
1317 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1318 sizeof(res->res_path));
1319 new_path = 1;
1320 }
1321
1322 if (res->sdev && new_path)
1323 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
b3b3b407
BK		 1324 ipr_format_res_path(res->ioa_cfg,
1325 res->res_path, buffer, sizeof(buffer)));
3e7ebdfa
WB		 1326 } else {
1327 res->flags = cfgtew->u.cfgte->flags;
1328 if (res->flags & IPR_IS_IOA_RESOURCE)
1329 res->type = IPR_RES_TYPE_IOAFP;
1330 else
1331 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1332
1333 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1334 sizeof(struct ipr_std_inq_data));
1335
1336 res->qmodel = IPR_QUEUEING_MODEL(res);
1337 proto = cfgtew->u.cfgte->proto;
1338 res->res_handle = cfgtew->u.cfgte->res_handle;
1339 }
1340
1341 ipr_update_ata_class(res, proto);
1342}
1343
1344/**
1345 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1346 * for the resource.
1347 * @res: resource entry struct
1348 * @cfgtew: config table entry wrapper struct
1349 *
1350 * Return value:
1351 * none
1352 **/
1353static void ipr_clear_res_target(struct ipr_resource_entry *res)
1354{
1355 struct ipr_resource_entry *gscsi_res = NULL;
1356 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1357
1358 if (!ioa_cfg->sis64)
1359 return;
1360
1361 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1362 clear_bit(res->target, ioa_cfg->array_ids);
1363 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1364 clear_bit(res->target, ioa_cfg->vset_ids);
1365 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1366 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1367 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1368 return;
1369 clear_bit(res->target, ioa_cfg->target_ids);
1370
1371 } else if (res->bus == 0)
1372 clear_bit(res->target, ioa_cfg->target_ids);
1da177e4
LT		 1373}
1374
1375/**
1376 * ipr_handle_config_change - Handle a config change from the adapter
1377 * @ioa_cfg: ioa config struct
1378 * @hostrcb: hostrcb
1379 *
1380 * Return value:
1381 * none
1382 **/
1383static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
3e7ebdfa 1384 struct ipr_hostrcb *hostrcb)
1da177e4
LT		 1385{
1386 struct ipr_resource_entry *res = NULL;
3e7ebdfa
WB		 1387 struct ipr_config_table_entry_wrapper cfgtew;
1388 __be32 cc_res_handle;
1389
1da177e4
LT		 1390 u32 is_ndn = 1;
1391
3e7ebdfa
WB		 1392 if (ioa_cfg->sis64) {
1393 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1394 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1395 } else {
1396 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1397 cc_res_handle = cfgtew.u.cfgte->res_handle;
1398 }
1da177e4
LT		 1399
1400 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 1401 if (res->res_handle == cc_res_handle) {
1da177e4
LT		 1402 is_ndn = 0;
1403 break;
1404 }
1405 }
1406
1407 if (is_ndn) {
1408 if (list_empty(&ioa_cfg->free_res_q)) {
1409 ipr_send_hcam(ioa_cfg,
1410 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1411 hostrcb);
1412 return;
1413 }
1414
1415 res = list_entry(ioa_cfg->free_res_q.next,
1416 struct ipr_resource_entry, queue);
1417
1418 list_del(&res->queue);
3e7ebdfa 1419 ipr_init_res_entry(res, &cfgtew);
1da177e4
LT		 1420 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1421 }
1422
3e7ebdfa 1423 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 1424
1425 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1426 if (res->sdev) {
1da177e4 1427 res->del_from_ml = 1;
3e7ebdfa 1428 res->res_handle = IPR_INVALID_RES_HANDLE;
1da177e4
LT		 1429 if (ioa_cfg->allow_ml_add_del)
1430 schedule_work(&ioa_cfg->work_q);
3e7ebdfa
WB		 1431 } else {
1432 ipr_clear_res_target(res);
1da177e4 1433 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3e7ebdfa 1434 }
5767a1c4 1435 } else if (!res->sdev || res->del_from_ml) {
1da177e4
LT		 1436 res->add_to_ml = 1;
1437 if (ioa_cfg->allow_ml_add_del)
1438 schedule_work(&ioa_cfg->work_q);
1439 }
1440
1441 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1442}
1443
1444/**
1445 * ipr_process_ccn - Op done function for a CCN.
1446 * @ipr_cmd: ipr command struct
1447 *
1448 * This function is the op done function for a configuration
1449 * change notification host controlled async from the adapter.
1450 *
1451 * Return value:
1452 * none
1453 **/
1454static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1455{
1456 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1457 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 1458 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 1459
1460 list_del(&hostrcb->queue);
05a6538a 1461 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 1462
1463 if (ioasc) {
1464 if (ioasc != IPR_IOASC_IOA_WAS_RESET)
1465 dev_err(&ioa_cfg->pdev->dev,
1466 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1467
1468 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1469 } else {
1470 ipr_handle_config_change(ioa_cfg, hostrcb);
1471 }
1472}
1473
8cf093e2
BK		 1474/**
1475 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1476 * @i: index into buffer
1477 * @buf: string to modify
1478 *
1479 * This function will strip all trailing whitespace, pad the end
1480 * of the string with a single space, and NULL terminate the string.
1481 *
1482 * Return value:
1483 * new length of string
1484 **/
1485static int strip_and_pad_whitespace(int i, char *buf)
1486{
1487 while (i && buf[i] == ' ')
1488 i--;
1489 buf[i+1] = ' ';
1490 buf[i+2] = '\0';
1491 return i + 2;
1492}
1493
1494/**
1495 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1496 * @prefix: string to print at start of printk
1497 * @hostrcb: hostrcb pointer
1498 * @vpd: vendor/product id/sn struct
1499 *
1500 * Return value:
1501 * none
1502 **/
1503static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1504 struct ipr_vpd *vpd)
1505{
1506 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1507 int i = 0;
1508
1509 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1510 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1511
1512 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1513 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1514
1515 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1516 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1517
1518 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1519}
1520
1da177e4
LT		 1521/**
1522 * ipr_log_vpd - Log the passed VPD to the error log.
cfc32139 1523 * @vpd: vendor/product id/sn struct
1da177e4
LT		 1524 *
1525 * Return value:
1526 * none
1527 **/
cfc32139 1528static void ipr_log_vpd(struct ipr_vpd *vpd)
1da177e4
LT		 1529{
1530 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1531 + IPR_SERIAL_NUM_LEN];
1532
cfc32139
BK		 1533 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1534 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1da177e4
LT		 1535 IPR_PROD_ID_LEN);
1536 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1537 ipr_err("Vendor/Product ID: %s\n", buffer);
1538
cfc32139 1539 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1da177e4
LT		 1540 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1541 ipr_err(" Serial Number: %s\n", buffer);
1542}
1543
8cf093e2
BK		 1544/**
1545 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1546 * @prefix: string to print at start of printk
1547 * @hostrcb: hostrcb pointer
1548 * @vpd: vendor/product id/sn/wwn struct
1549 *
1550 * Return value:
1551 * none
1552 **/
1553static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1554 struct ipr_ext_vpd *vpd)
1555{
1556 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1557 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1558 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1559}
1560
ee0f05b8
BK		 1561/**
1562 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1563 * @vpd: vendor/product id/sn/wwn struct
1564 *
1565 * Return value:
1566 * none
1567 **/
1568static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1569{
1570 ipr_log_vpd(&vpd->vpd);
1571 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1572 be32_to_cpu(vpd->wwid[1]));
1573}
1574
1575/**
1576 * ipr_log_enhanced_cache_error - Log a cache error.
1577 * @ioa_cfg: ioa config struct
1578 * @hostrcb: hostrcb struct
1579 *
1580 * Return value:
1581 * none
1582 **/
1583static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1584 struct ipr_hostrcb *hostrcb)
1585{
4565e370
WB		 1586 struct ipr_hostrcb_type_12_error *error;
1587
1588 if (ioa_cfg->sis64)
1589 error = &hostrcb->hcam.u.error64.u.type_12_error;
1590 else
1591 error = &hostrcb->hcam.u.error.u.type_12_error;
ee0f05b8
BK		 1592
1593 ipr_err("-----Current Configuration-----\n");
1594 ipr_err("Cache Directory Card Information:\n");
1595 ipr_log_ext_vpd(&error->ioa_vpd);
1596 ipr_err("Adapter Card Information:\n");
1597 ipr_log_ext_vpd(&error->cfc_vpd);
1598
1599 ipr_err("-----Expected Configuration-----\n");
1600 ipr_err("Cache Directory Card Information:\n");
1601 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1602 ipr_err("Adapter Card Information:\n");
1603 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1604
1605 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1606 be32_to_cpu(error->ioa_data[0]),
1607 be32_to_cpu(error->ioa_data[1]),
1608 be32_to_cpu(error->ioa_data[2]));
1609}
1610
1da177e4
LT		 1611/**
1612 * ipr_log_cache_error - Log a cache error.
1613 * @ioa_cfg: ioa config struct
1614 * @hostrcb: hostrcb struct
1615 *
1616 * Return value:
1617 * none
1618 **/
1619static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1620 struct ipr_hostrcb *hostrcb)
1621{
1622 struct ipr_hostrcb_type_02_error *error =
1623 &hostrcb->hcam.u.error.u.type_02_error;
1624
1625 ipr_err("-----Current Configuration-----\n");
1626 ipr_err("Cache Directory Card Information:\n");
cfc32139 1627 ipr_log_vpd(&error->ioa_vpd);
1da177e4 1628 ipr_err("Adapter Card Information:\n");
cfc32139 1629 ipr_log_vpd(&error->cfc_vpd);
1da177e4
LT		 1630
1631 ipr_err("-----Expected Configuration-----\n");
1632 ipr_err("Cache Directory Card Information:\n");
cfc32139 1633 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1da177e4 1634 ipr_err("Adapter Card Information:\n");
cfc32139 1635 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1da177e4
LT		 1636
1637 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1638 be32_to_cpu(error->ioa_data[0]),
1639 be32_to_cpu(error->ioa_data[1]),
1640 be32_to_cpu(error->ioa_data[2]));
1641}
1642
ee0f05b8
BK		 1643/**
1644 * ipr_log_enhanced_config_error - Log a configuration error.
1645 * @ioa_cfg: ioa config struct
1646 * @hostrcb: hostrcb struct
1647 *
1648 * Return value:
1649 * none
1650 **/
1651static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1652 struct ipr_hostrcb *hostrcb)
1653{
1654 int errors_logged, i;
1655 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1656 struct ipr_hostrcb_type_13_error *error;
1657
1658 error = &hostrcb->hcam.u.error.u.type_13_error;
1659 errors_logged = be32_to_cpu(error->errors_logged);
1660
1661 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1662 be32_to_cpu(error->errors_detected), errors_logged);
1663
1664 dev_entry = error->dev;
1665
1666 for (i = 0; i < errors_logged; i++, dev_entry++) {
1667 ipr_err_separator;
1668
1669 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1670 ipr_log_ext_vpd(&dev_entry->vpd);
1671
1672 ipr_err("-----New Device Information-----\n");
1673 ipr_log_ext_vpd(&dev_entry->new_vpd);
1674
1675 ipr_err("Cache Directory Card Information:\n");
1676 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1677
1678 ipr_err("Adapter Card Information:\n");
1679 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1680 }
1681}
1682
4565e370
WB		 1683/**
1684 * ipr_log_sis64_config_error - Log a device error.
1685 * @ioa_cfg: ioa config struct
1686 * @hostrcb: hostrcb struct
1687 *
1688 * Return value:
1689 * none
1690 **/
1691static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1692 struct ipr_hostrcb *hostrcb)
1693{
1694 int errors_logged, i;
1695 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1696 struct ipr_hostrcb_type_23_error *error;
1697 char buffer[IPR_MAX_RES_PATH_LENGTH];
1698
1699 error = &hostrcb->hcam.u.error64.u.type_23_error;
1700 errors_logged = be32_to_cpu(error->errors_logged);
1701
1702 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1703 be32_to_cpu(error->errors_detected), errors_logged);
1704
1705 dev_entry = error->dev;
1706
1707 for (i = 0; i < errors_logged; i++, dev_entry++) {
1708 ipr_err_separator;
1709
1710 ipr_err("Device %d : %s", i + 1,
b3b3b407
BK		 1711 __ipr_format_res_path(dev_entry->res_path,
1712 buffer, sizeof(buffer)));
4565e370
WB		 1713 ipr_log_ext_vpd(&dev_entry->vpd);
1714
1715 ipr_err("-----New Device Information-----\n");
1716 ipr_log_ext_vpd(&dev_entry->new_vpd);
1717
1718 ipr_err("Cache Directory Card Information:\n");
1719 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1720
1721 ipr_err("Adapter Card Information:\n");
1722 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1723 }
1724}
1725
1da177e4
LT		 1726/**
1727 * ipr_log_config_error - Log a configuration error.
1728 * @ioa_cfg: ioa config struct
1729 * @hostrcb: hostrcb struct
1730 *
1731 * Return value:
1732 * none
1733 **/
1734static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1735 struct ipr_hostrcb *hostrcb)
1736{
1737 int errors_logged, i;
1738 struct ipr_hostrcb_device_data_entry *dev_entry;
1739 struct ipr_hostrcb_type_03_error *error;
1740
1741 error = &hostrcb->hcam.u.error.u.type_03_error;
1742 errors_logged = be32_to_cpu(error->errors_logged);
1743
1744 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1745 be32_to_cpu(error->errors_detected), errors_logged);
1746
cfc32139 1747 dev_entry = error->dev;
1da177e4
LT		 1748
1749 for (i = 0; i < errors_logged; i++, dev_entry++) {
1750 ipr_err_separator;
1751
fa15b1f6 1752 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
cfc32139 1753 ipr_log_vpd(&dev_entry->vpd);
1da177e4
LT		 1754
1755 ipr_err("-----New Device Information-----\n");
cfc32139 1756 ipr_log_vpd(&dev_entry->new_vpd);
1da177e4
LT		 1757
1758 ipr_err("Cache Directory Card Information:\n");
cfc32139 1759 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1da177e4
LT		 1760
1761 ipr_err("Adapter Card Information:\n");
cfc32139 1762 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1da177e4
LT		 1763
1764 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1765 be32_to_cpu(dev_entry->ioa_data[0]),
1766 be32_to_cpu(dev_entry->ioa_data[1]),
1767 be32_to_cpu(dev_entry->ioa_data[2]),
1768 be32_to_cpu(dev_entry->ioa_data[3]),
1769 be32_to_cpu(dev_entry->ioa_data[4]));
1770 }
1771}
1772
ee0f05b8
BK		 1773/**
1774 * ipr_log_enhanced_array_error - Log an array configuration error.
1775 * @ioa_cfg: ioa config struct
1776 * @hostrcb: hostrcb struct
1777 *
1778 * Return value:
1779 * none
1780 **/
1781static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1782 struct ipr_hostrcb *hostrcb)
1783{
1784 int i, num_entries;
1785 struct ipr_hostrcb_type_14_error *error;
1786 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1787 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1788
1789 error = &hostrcb->hcam.u.error.u.type_14_error;
1790
1791 ipr_err_separator;
1792
1793 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1794 error->protection_level,
1795 ioa_cfg->host->host_no,
1796 error->last_func_vset_res_addr.bus,
1797 error->last_func_vset_res_addr.target,
1798 error->last_func_vset_res_addr.lun);
1799
1800 ipr_err_separator;
1801
1802 array_entry = error->array_member;
1803 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
7262026f 1804 ARRAY_SIZE(error->array_member));
ee0f05b8
BK		 1805
1806 for (i = 0; i < num_entries; i++, array_entry++) {
1807 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1808 continue;
1809
1810 if (be32_to_cpu(error->exposed_mode_adn) == i)
1811 ipr_err("Exposed Array Member %d:\n", i);
1812 else
1813 ipr_err("Array Member %d:\n", i);
1814
1815 ipr_log_ext_vpd(&array_entry->vpd);
1816 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1817 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1818 "Expected Location");
1819
1820 ipr_err_separator;
1821 }
1822}
1823
1da177e4
LT		 1824/**
1825 * ipr_log_array_error - Log an array configuration error.
1826 * @ioa_cfg: ioa config struct
1827 * @hostrcb: hostrcb struct
1828 *
1829 * Return value:
1830 * none
1831 **/
1832static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1833 struct ipr_hostrcb *hostrcb)
1834{
1835 int i;
1836 struct ipr_hostrcb_type_04_error *error;
1837 struct ipr_hostrcb_array_data_entry *array_entry;
1838 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1839
1840 error = &hostrcb->hcam.u.error.u.type_04_error;
1841
1842 ipr_err_separator;
1843
1844 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1845 error->protection_level,
1846 ioa_cfg->host->host_no,
1847 error->last_func_vset_res_addr.bus,
1848 error->last_func_vset_res_addr.target,
1849 error->last_func_vset_res_addr.lun);
1850
1851 ipr_err_separator;
1852
1853 array_entry = error->array_member;
1854
1855 for (i = 0; i < 18; i++) {
cfc32139 1856 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1da177e4
LT		 1857 continue;
1858
fa15b1f6 1859 if (be32_to_cpu(error->exposed_mode_adn) == i)
1da177e4 1860 ipr_err("Exposed Array Member %d:\n", i);
fa15b1f6 1861 else
1da177e4 1862 ipr_err("Array Member %d:\n", i);
1da177e4 1863
cfc32139 1864 ipr_log_vpd(&array_entry->vpd);
1da177e4 1865
fa15b1f6
BK		 1866 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1867 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1868 "Expected Location");
1da177e4
LT		 1869
1870 ipr_err_separator;
1871
1872 if (i == 9)
1873 array_entry = error->array_member2;
1874 else
1875 array_entry++;
1876 }
1877}
1878
1879/**
b0df54bb 1880 * ipr_log_hex_data - Log additional hex IOA error data.
ac719aba 1881 * @ioa_cfg: ioa config struct
b0df54bb
BK		 1882 * @data: IOA error data
1883 * @len: data length
1da177e4
LT		 1884 *
1885 * Return value:
1886 * none
1887 **/
ac719aba 1888static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
1da177e4
LT		 1889{
1890 int i;
1da177e4 1891
b0df54bb 1892 if (len == 0)
1da177e4
LT		 1893 return;
1894
ac719aba
BK		 1895 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1896 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1897
b0df54bb 1898 for (i = 0; i < len / 4; i += 4) {
1da177e4 1899 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
b0df54bb
BK		 1900 be32_to_cpu(data[i]),
1901 be32_to_cpu(data[i+1]),
1902 be32_to_cpu(data[i+2]),
1903 be32_to_cpu(data[i+3]));
1da177e4
LT		 1904 }
1905}
1906
ee0f05b8
BK		 1907/**
1908 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1909 * @ioa_cfg: ioa config struct
1910 * @hostrcb: hostrcb struct
1911 *
1912 * Return value:
1913 * none
1914 **/
1915static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1916 struct ipr_hostrcb *hostrcb)
1917{
1918 struct ipr_hostrcb_type_17_error *error;
1919
4565e370
WB		 1920 if (ioa_cfg->sis64)
1921 error = &hostrcb->hcam.u.error64.u.type_17_error;
1922 else
1923 error = &hostrcb->hcam.u.error.u.type_17_error;
1924
ee0f05b8 1925 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1926 strim(error->failure_reason);
ee0f05b8 1927
8cf093e2
BK		 1928 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1929 be32_to_cpu(hostrcb->hcam.u.error.prc));
1930 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1931 ipr_log_hex_data(ioa_cfg, error->data,
ee0f05b8
BK		 1932 be32_to_cpu(hostrcb->hcam.length) -
1933 (offsetof(struct ipr_hostrcb_error, u) +
1934 offsetof(struct ipr_hostrcb_type_17_error, data)));
1935}
1936
b0df54bb
BK		 1937/**
1938 * ipr_log_dual_ioa_error - Log a dual adapter error.
1939 * @ioa_cfg: ioa config struct
1940 * @hostrcb: hostrcb struct
1941 *
1942 * Return value:
1943 * none
1944 **/
1945static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1946 struct ipr_hostrcb *hostrcb)
1947{
1948 struct ipr_hostrcb_type_07_error *error;
1949
1950 error = &hostrcb->hcam.u.error.u.type_07_error;
1951 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1952 strim(error->failure_reason);
b0df54bb 1953
8cf093e2
BK		 1954 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1955 be32_to_cpu(hostrcb->hcam.u.error.prc));
1956 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1957 ipr_log_hex_data(ioa_cfg, error->data,
b0df54bb
BK		 1958 be32_to_cpu(hostrcb->hcam.length) -
1959 (offsetof(struct ipr_hostrcb_error, u) +
1960 offsetof(struct ipr_hostrcb_type_07_error, data)));
1961}
1962
49dc6a18
BK		 1963static const struct {
1964 u8 active;
1965 char *desc;
1966} path_active_desc[] = {
1967 { IPR_PATH_NO_INFO, "Path" },
1968 { IPR_PATH_ACTIVE, "Active path" },
1969 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1970};
1971
1972static const struct {
1973 u8 state;
1974 char *desc;
1975} path_state_desc[] = {
1976 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1977 { IPR_PATH_HEALTHY, "is healthy" },
1978 { IPR_PATH_DEGRADED, "is degraded" },
1979 { IPR_PATH_FAILED, "is failed" }
1980};
1981
1982/**
1983 * ipr_log_fabric_path - Log a fabric path error
1984 * @hostrcb: hostrcb struct
1985 * @fabric: fabric descriptor
1986 *
1987 * Return value:
1988 * none
1989 **/
1990static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
1991 struct ipr_hostrcb_fabric_desc *fabric)
1992{
1993 int i, j;
1994 u8 path_state = fabric->path_state;
1995 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1996 u8 state = path_state & IPR_PATH_STATE_MASK;
1997
1998 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1999 if (path_active_desc[i].active != active)
2000 continue;
2001
2002 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2003 if (path_state_desc[j].state != state)
2004 continue;
2005
2006 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
2007 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
2008 path_active_desc[i].desc, path_state_desc[j].desc,
2009 fabric->ioa_port);
2010 } else if (fabric->cascaded_expander == 0xff) {
2011 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
2012 path_active_desc[i].desc, path_state_desc[j].desc,
2013 fabric->ioa_port, fabric->phy);
2014 } else if (fabric->phy == 0xff) {
2015 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
2016 path_active_desc[i].desc, path_state_desc[j].desc,
2017 fabric->ioa_port, fabric->cascaded_expander);
2018 } else {
2019 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
2020 path_active_desc[i].desc, path_state_desc[j].desc,
2021 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2022 }
2023 return;
2024 }
2025 }
2026
2027 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
2028 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2029}
2030
4565e370
WB		 2031/**
2032 * ipr_log64_fabric_path - Log a fabric path error
2033 * @hostrcb: hostrcb struct
2034 * @fabric: fabric descriptor
2035 *
2036 * Return value:
2037 * none
2038 **/
2039static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
2040 struct ipr_hostrcb64_fabric_desc *fabric)
2041{
2042 int i, j;
2043 u8 path_state = fabric->path_state;
2044 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2045 u8 state = path_state & IPR_PATH_STATE_MASK;
2046 char buffer[IPR_MAX_RES_PATH_LENGTH];
2047
2048 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2049 if (path_active_desc[i].active != active)
2050 continue;
2051
2052 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2053 if (path_state_desc[j].state != state)
2054 continue;
2055
2056 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
2057 path_active_desc[i].desc, path_state_desc[j].desc,
b3b3b407
BK		 2058 ipr_format_res_path(hostrcb->ioa_cfg,
2059 fabric->res_path,
2060 buffer, sizeof(buffer)));
4565e370
WB		 2061 return;
2062 }
2063 }
2064
2065 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
b3b3b407
BK		 2066 ipr_format_res_path(hostrcb->ioa_cfg, fabric->res_path,
2067 buffer, sizeof(buffer)));
4565e370
WB		 2068}
2069
49dc6a18
BK		 2070static const struct {
2071 u8 type;
2072 char *desc;
2073} path_type_desc[] = {
2074 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
2075 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
2076 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
2077 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
2078};
2079
2080static const struct {
2081 u8 status;
2082 char *desc;
2083} path_status_desc[] = {
2084 { IPR_PATH_CFG_NO_PROB, "Functional" },
2085 { IPR_PATH_CFG_DEGRADED, "Degraded" },
2086 { IPR_PATH_CFG_FAILED, "Failed" },
2087 { IPR_PATH_CFG_SUSPECT, "Suspect" },
2088 { IPR_PATH_NOT_DETECTED, "Missing" },
2089 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
2090};
2091
2092static const char *link_rate[] = {
2093 "unknown",
2094 "disabled",
2095 "phy reset problem",
2096 "spinup hold",
2097 "port selector",
2098 "unknown",
2099 "unknown",
2100 "unknown",
2101 "1.5Gbps",
2102 "3.0Gbps",
2103 "unknown",
2104 "unknown",
2105 "unknown",
2106 "unknown",
2107 "unknown",
2108 "unknown"
2109};
2110
2111/**
2112 * ipr_log_path_elem - Log a fabric path element.
2113 * @hostrcb: hostrcb struct
2114 * @cfg: fabric path element struct
2115 *
2116 * Return value:
2117 * none
2118 **/
2119static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
2120 struct ipr_hostrcb_config_element *cfg)
2121{
2122 int i, j;
2123 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2124 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2125
2126 if (type == IPR_PATH_CFG_NOT_EXIST)
2127 return;
2128
2129 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2130 if (path_type_desc[i].type != type)
2131 continue;
2132
2133 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2134 if (path_status_desc[j].status != status)
2135 continue;
2136
2137 if (type == IPR_PATH_CFG_IOA_PORT) {
2138 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2139 path_status_desc[j].desc, path_type_desc[i].desc,
2140 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2141 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2142 } else {
2143 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2144 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2145 path_status_desc[j].desc, path_type_desc[i].desc,
2146 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2147 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2148 } else if (cfg->cascaded_expander == 0xff) {
2149 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2150 "WWN=%08X%08X\n", path_status_desc[j].desc,
2151 path_type_desc[i].desc, cfg->phy,
2152 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2153 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2154 } else if (cfg->phy == 0xff) {
2155 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2156 "WWN=%08X%08X\n", path_status_desc[j].desc,
2157 path_type_desc[i].desc, cfg->cascaded_expander,
2158 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2159 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2160 } else {
2161 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2162 "WWN=%08X%08X\n", path_status_desc[j].desc,
2163 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2164 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2165 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2166 }
2167 }
2168 return;
2169 }
2170 }
2171
2172 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2173 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2174 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2175 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2176}
2177
4565e370
WB		 2178/**
2179 * ipr_log64_path_elem - Log a fabric path element.
2180 * @hostrcb: hostrcb struct
2181 * @cfg: fabric path element struct
2182 *
2183 * Return value:
2184 * none
2185 **/
2186static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2187 struct ipr_hostrcb64_config_element *cfg)
2188{
2189 int i, j;
2190 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2191 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2192 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2193 char buffer[IPR_MAX_RES_PATH_LENGTH];
2194
2195 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2196 return;
2197
2198 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2199 if (path_type_desc[i].type != type)
2200 continue;
2201
2202 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2203 if (path_status_desc[j].status != status)
2204 continue;
2205
2206 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2207 path_status_desc[j].desc, path_type_desc[i].desc,
b3b3b407
BK		 2208 ipr_format_res_path(hostrcb->ioa_cfg,
2209 cfg->res_path, buffer, sizeof(buffer)),
2210 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2211 be32_to_cpu(cfg->wwid[0]),
2212 be32_to_cpu(cfg->wwid[1]));
4565e370
WB		 2213 return;
2214 }
2215 }
2216 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2217 "WWN=%08X%08X\n", cfg->type_status,
b3b3b407
BK		 2218 ipr_format_res_path(hostrcb->ioa_cfg,
2219 cfg->res_path, buffer, sizeof(buffer)),
2220 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2221 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
4565e370
WB		 2222}
2223
49dc6a18
BK		 2224/**
2225 * ipr_log_fabric_error - Log a fabric error.
2226 * @ioa_cfg: ioa config struct
2227 * @hostrcb: hostrcb struct
2228 *
2229 * Return value:
2230 * none
2231 **/
2232static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2233 struct ipr_hostrcb *hostrcb)
2234{
2235 struct ipr_hostrcb_type_20_error *error;
2236 struct ipr_hostrcb_fabric_desc *fabric;
2237 struct ipr_hostrcb_config_element *cfg;
2238 int i, add_len;
2239
2240 error = &hostrcb->hcam.u.error.u.type_20_error;
2241 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2242 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2243
2244 add_len = be32_to_cpu(hostrcb->hcam.length) -
2245 (offsetof(struct ipr_hostrcb_error, u) +
2246 offsetof(struct ipr_hostrcb_type_20_error, desc));
2247
2248 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2249 ipr_log_fabric_path(hostrcb, fabric);
2250 for_each_fabric_cfg(fabric, cfg)
2251 ipr_log_path_elem(hostrcb, cfg);
2252
2253 add_len -= be16_to_cpu(fabric->length);
2254 fabric = (struct ipr_hostrcb_fabric_desc *)
2255 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2256 }
2257
ac719aba 2258 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
49dc6a18
BK		 2259}
2260
4565e370
WB		 2261/**
2262 * ipr_log_sis64_array_error - Log a sis64 array error.
2263 * @ioa_cfg: ioa config struct
2264 * @hostrcb: hostrcb struct
2265 *
2266 * Return value:
2267 * none
2268 **/
2269static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2270 struct ipr_hostrcb *hostrcb)
2271{
2272 int i, num_entries;
2273 struct ipr_hostrcb_type_24_error *error;
2274 struct ipr_hostrcb64_array_data_entry *array_entry;
2275 char buffer[IPR_MAX_RES_PATH_LENGTH];
2276 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2277
2278 error = &hostrcb->hcam.u.error64.u.type_24_error;
2279
2280 ipr_err_separator;
2281
2282 ipr_err("RAID %s Array Configuration: %s\n",
2283 error->protection_level,
b3b3b407
BK		 2284 ipr_format_res_path(ioa_cfg, error->last_res_path,
2285 buffer, sizeof(buffer)));
4565e370
WB		 2286
2287 ipr_err_separator;
2288
2289 array_entry = error->array_member;
7262026f
WB		 2290 num_entries = min_t(u32, error->num_entries,
2291 ARRAY_SIZE(error->array_member));
4565e370
WB		 2292
2293 for (i = 0; i < num_entries; i++, array_entry++) {
2294
2295 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2296 continue;
2297
2298 if (error->exposed_mode_adn == i)
2299 ipr_err("Exposed Array Member %d:\n", i);
2300 else
2301 ipr_err("Array Member %d:\n", i);
2302
2303 ipr_err("Array Member %d:\n", i);
2304 ipr_log_ext_vpd(&array_entry->vpd);
7262026f 2305 ipr_err("Current Location: %s\n",
b3b3b407
BK		 2306 ipr_format_res_path(ioa_cfg, array_entry->res_path,
2307 buffer, sizeof(buffer)));
7262026f 2308 ipr_err("Expected Location: %s\n",
b3b3b407
BK		 2309 ipr_format_res_path(ioa_cfg,
2310 array_entry->expected_res_path,
2311 buffer, sizeof(buffer)));
4565e370
WB		 2312
2313 ipr_err_separator;
2314 }
2315}
2316
2317/**
2318 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2319 * @ioa_cfg: ioa config struct
2320 * @hostrcb: hostrcb struct
2321 *
2322 * Return value:
2323 * none
2324 **/
2325static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2326 struct ipr_hostrcb *hostrcb)
2327{
2328 struct ipr_hostrcb_type_30_error *error;
2329 struct ipr_hostrcb64_fabric_desc *fabric;
2330 struct ipr_hostrcb64_config_element *cfg;
2331 int i, add_len;
2332
2333 error = &hostrcb->hcam.u.error64.u.type_30_error;
2334
2335 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2336 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2337
2338 add_len = be32_to_cpu(hostrcb->hcam.length) -
2339 (offsetof(struct ipr_hostrcb64_error, u) +
2340 offsetof(struct ipr_hostrcb_type_30_error, desc));
2341
2342 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2343 ipr_log64_fabric_path(hostrcb, fabric);
2344 for_each_fabric_cfg(fabric, cfg)
2345 ipr_log64_path_elem(hostrcb, cfg);
2346
2347 add_len -= be16_to_cpu(fabric->length);
2348 fabric = (struct ipr_hostrcb64_fabric_desc *)
2349 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2350 }
2351
2352 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
2353}
2354
b0df54bb
BK		 2355/**
2356 * ipr_log_generic_error - Log an adapter error.
2357 * @ioa_cfg: ioa config struct
2358 * @hostrcb: hostrcb struct
2359 *
2360 * Return value:
2361 * none
2362 **/
2363static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2364 struct ipr_hostrcb *hostrcb)
2365{
ac719aba 2366 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
b0df54bb
BK		 2367 be32_to_cpu(hostrcb->hcam.length));
2368}
2369
1da177e4
LT		 2370/**
2371 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2372 * @ioasc: IOASC
2373 *
2374 * This function will return the index of into the ipr_error_table
2375 * for the specified IOASC. If the IOASC is not in the table,
2376 * 0 will be returned, which points to the entry used for unknown errors.
2377 *
2378 * Return value:
2379 * index into the ipr_error_table
2380 **/
2381static u32 ipr_get_error(u32 ioasc)
2382{
2383 int i;
2384
2385 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
35a39691 2386 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
1da177e4
LT		 2387 return i;
2388
2389 return 0;
2390}
2391
2392/**
2393 * ipr_handle_log_data - Log an adapter error.
2394 * @ioa_cfg: ioa config struct
2395 * @hostrcb: hostrcb struct
2396 *
2397 * This function logs an adapter error to the system.
2398 *
2399 * Return value:
2400 * none
2401 **/
2402static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2403 struct ipr_hostrcb *hostrcb)
2404{
2405 u32 ioasc;
2406 int error_index;
2407
2408 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2409 return;
2410
2411 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2412 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2413
4565e370
WB		 2414 if (ioa_cfg->sis64)
2415 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2416 else
2417 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4 2418
4565e370
WB		 2419 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2420 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
1da177e4
LT		 2421 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2422 scsi_report_bus_reset(ioa_cfg->host,
4565e370 2423 hostrcb->hcam.u.error.fd_res_addr.bus);
1da177e4
LT		 2424 }
2425
2426 error_index = ipr_get_error(ioasc);
2427
2428 if (!ipr_error_table[error_index].log_hcam)
2429 return;
2430
49dc6a18 2431 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
1da177e4
LT		 2432
2433 /* Set indication we have logged an error */
2434 ioa_cfg->errors_logged++;
2435
933916f3 2436 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
1da177e4 2437 return;
cf852037
BK		 2438 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2439 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
1da177e4
LT		 2440
2441 switch (hostrcb->hcam.overlay_id) {
1da177e4
LT		 2442 case IPR_HOST_RCB_OVERLAY_ID_2:
2443 ipr_log_cache_error(ioa_cfg, hostrcb);
2444 break;
2445 case IPR_HOST_RCB_OVERLAY_ID_3:
2446 ipr_log_config_error(ioa_cfg, hostrcb);
2447 break;
2448 case IPR_HOST_RCB_OVERLAY_ID_4:
2449 case IPR_HOST_RCB_OVERLAY_ID_6:
2450 ipr_log_array_error(ioa_cfg, hostrcb);
2451 break;
b0df54bb
BK		 2452 case IPR_HOST_RCB_OVERLAY_ID_7:
2453 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2454 break;
ee0f05b8
BK		 2455 case IPR_HOST_RCB_OVERLAY_ID_12:
2456 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2457 break;
2458 case IPR_HOST_RCB_OVERLAY_ID_13:
2459 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2460 break;
2461 case IPR_HOST_RCB_OVERLAY_ID_14:
2462 case IPR_HOST_RCB_OVERLAY_ID_16:
2463 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2464 break;
2465 case IPR_HOST_RCB_OVERLAY_ID_17:
2466 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2467 break;
49dc6a18
BK		 2468 case IPR_HOST_RCB_OVERLAY_ID_20:
2469 ipr_log_fabric_error(ioa_cfg, hostrcb);
2470 break;
4565e370
WB		 2471 case IPR_HOST_RCB_OVERLAY_ID_23:
2472 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2473 break;
2474 case IPR_HOST_RCB_OVERLAY_ID_24:
2475 case IPR_HOST_RCB_OVERLAY_ID_26:
2476 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2477 break;
2478 case IPR_HOST_RCB_OVERLAY_ID_30:
2479 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2480 break;
cf852037 2481 case IPR_HOST_RCB_OVERLAY_ID_1:
1da177e4 2482 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
1da177e4 2483 default:
a9cfca96 2484 ipr_log_generic_error(ioa_cfg, hostrcb);
1da177e4
LT		 2485 break;
2486 }
2487}
2488
2489/**
2490 * ipr_process_error - Op done function for an adapter error log.
2491 * @ipr_cmd: ipr command struct
2492 *
2493 * This function is the op done function for an error log host
2494 * controlled async from the adapter. It will log the error and
2495 * send the HCAM back to the adapter.
2496 *
2497 * Return value:
2498 * none
2499 **/
2500static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2501{
2502 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2503 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 2504 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4565e370
WB		 2505 u32 fd_ioasc;
2506
2507 if (ioa_cfg->sis64)
2508 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2509 else
2510 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4
LT		 2511
2512 list_del(&hostrcb->queue);
05a6538a 2513 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 2514
2515 if (!ioasc) {
2516 ipr_handle_log_data(ioa_cfg, hostrcb);
65f56475
BK		 2517 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2518 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
1da177e4
LT		 2519 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
2520 dev_err(&ioa_cfg->pdev->dev,
2521 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2522 }
2523
2524 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2525}
2526
2527/**
2528 * ipr_timeout - An internally generated op has timed out.
2529 * @ipr_cmd: ipr command struct
2530 *
2531 * This function blocks host requests and initiates an
2532 * adapter reset.
2533 *
2534 * Return value:
2535 * none
2536 **/
2537static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2538{
2539 unsigned long lock_flags = 0;
2540 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2541
2542 ENTER;
2543 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2544
2545 ioa_cfg->errors_logged++;
2546 dev_err(&ioa_cfg->pdev->dev,
2547 "Adapter being reset due to command timeout.\n");
2548
2549 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2550 ioa_cfg->sdt_state = GET_DUMP;
2551
2552 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2553 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2554
2555 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2556 LEAVE;
2557}
2558
2559/**
2560 * ipr_oper_timeout - Adapter timed out transitioning to operational
2561 * @ipr_cmd: ipr command struct
2562 *
2563 * This function blocks host requests and initiates an
2564 * adapter reset.
2565 *
2566 * Return value:
2567 * none
2568 **/
2569static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2570{
2571 unsigned long lock_flags = 0;
2572 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2573
2574 ENTER;
2575 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2576
2577 ioa_cfg->errors_logged++;
2578 dev_err(&ioa_cfg->pdev->dev,
2579 "Adapter timed out transitioning to operational.\n");
2580
2581 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2582 ioa_cfg->sdt_state = GET_DUMP;
2583
2584 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2585 if (ipr_fastfail)
2586 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2587 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2588 }
2589
2590 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2591 LEAVE;
2592}
2593
1da177e4
LT		 2594/**
2595 * ipr_find_ses_entry - Find matching SES in SES table
2596 * @res: resource entry struct of SES
2597 *
2598 * Return value:
2599 * pointer to SES table entry / NULL on failure
2600 **/
2601static const struct ipr_ses_table_entry *
2602ipr_find_ses_entry(struct ipr_resource_entry *res)
2603{
2604 int i, j, matches;
3e7ebdfa 2605 struct ipr_std_inq_vpids *vpids;
1da177e4
LT		 2606 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2607
2608 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2609 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2610 if (ste->compare_product_id_byte[j] == 'X') {
3e7ebdfa
WB		 2611 vpids = &res->std_inq_data.vpids;
2612 if (vpids->product_id[j] == ste->product_id[j])
1da177e4
LT		 2613 matches++;
2614 else
2615 break;
2616 } else
2617 matches++;
2618 }
2619
2620 if (matches == IPR_PROD_ID_LEN)
2621 return ste;
2622 }
2623
2624 return NULL;
2625}
2626
2627/**
2628 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2629 * @ioa_cfg: ioa config struct
2630 * @bus: SCSI bus
2631 * @bus_width: bus width
2632 *
2633 * Return value:
2634 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2635 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2636 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2637 * max 160MHz = max 320MB/sec).
2638 **/
2639static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2640{
2641 struct ipr_resource_entry *res;
2642 const struct ipr_ses_table_entry *ste;
2643 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2644
2645 /* Loop through each config table entry in the config table buffer */
2646 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 2647 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
1da177e4
LT		 2648 continue;
2649
3e7ebdfa 2650 if (bus != res->bus)
1da177e4
LT		 2651 continue;
2652
2653 if (!(ste = ipr_find_ses_entry(res)))
2654 continue;
2655
2656 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2657 }
2658
2659 return max_xfer_rate;
2660}
2661
2662/**
2663 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2664 * @ioa_cfg: ioa config struct
2665 * @max_delay: max delay in micro-seconds to wait
2666 *
2667 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2668 *
2669 * Return value:
2670 * 0 on success / other on failure
2671 **/
2672static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2673{
2674 volatile u32 pcii_reg;
2675 int delay = 1;
2676
2677 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2678 while (delay < max_delay) {
2679 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2680
2681 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2682 return 0;
2683
2684 /* udelay cannot be used if delay is more than a few milliseconds */
2685 if ((delay / 1000) > MAX_UDELAY_MS)
2686 mdelay(delay / 1000);
2687 else
2688 udelay(delay);
2689
2690 delay += delay;
2691 }
2692 return -EIO;
2693}
2694
dcbad00e
WB		 2695/**
2696 * ipr_get_sis64_dump_data_section - Dump IOA memory
2697 * @ioa_cfg: ioa config struct
2698 * @start_addr: adapter address to dump
2699 * @dest: destination kernel buffer
2700 * @length_in_words: length to dump in 4 byte words
2701 *
2702 * Return value:
2703 * 0 on success
2704 **/
2705static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2706 u32 start_addr,
2707 __be32 *dest, u32 length_in_words)
2708{
2709 int i;
2710
2711 for (i = 0; i < length_in_words; i++) {
2712 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2713 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2714 dest++;
2715 }
2716
2717 return 0;
2718}
2719
1da177e4
LT		 2720/**
2721 * ipr_get_ldump_data_section - Dump IOA memory
2722 * @ioa_cfg: ioa config struct
2723 * @start_addr: adapter address to dump
2724 * @dest: destination kernel buffer
2725 * @length_in_words: length to dump in 4 byte words
2726 *
2727 * Return value:
2728 * 0 on success / -EIO on failure
2729 **/
2730static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2731 u32 start_addr,
2732 __be32 *dest, u32 length_in_words)
2733{
2734 volatile u32 temp_pcii_reg;
2735 int i, delay = 0;
2736
dcbad00e
WB		 2737 if (ioa_cfg->sis64)
2738 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2739 dest, length_in_words);
2740
1da177e4
LT		 2741 /* Write IOA interrupt reg starting LDUMP state */
2742 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
214777ba 2743 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2744
2745 /* Wait for IO debug acknowledge */
2746 if (ipr_wait_iodbg_ack(ioa_cfg,
2747 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2748 dev_err(&ioa_cfg->pdev->dev,
2749 "IOA dump long data transfer timeout\n");
2750 return -EIO;
2751 }
2752
2753 /* Signal LDUMP interlocked - clear IO debug ack */
2754 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2755 ioa_cfg->regs.clr_interrupt_reg);
2756
2757 /* Write Mailbox with starting address */
2758 writel(start_addr, ioa_cfg->ioa_mailbox);
2759
2760 /* Signal address valid - clear IOA Reset alert */
2761 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2762 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2763
2764 for (i = 0; i < length_in_words; i++) {
2765 /* Wait for IO debug acknowledge */
2766 if (ipr_wait_iodbg_ack(ioa_cfg,
2767 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2768 dev_err(&ioa_cfg->pdev->dev,
2769 "IOA dump short data transfer timeout\n");
2770 return -EIO;
2771 }
2772
2773 /* Read data from mailbox and increment destination pointer */
2774 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2775 dest++;
2776
2777 /* For all but the last word of data, signal data received */
2778 if (i < (length_in_words - 1)) {
2779 /* Signal dump data received - Clear IO debug Ack */
2780 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2781 ioa_cfg->regs.clr_interrupt_reg);
2782 }
2783 }
2784
2785 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2786 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2787 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2788
2789 writel(IPR_UPROCI_IO_DEBUG_ALERT,
214777ba 2790 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2791
2792 /* Signal dump data received - Clear IO debug Ack */
2793 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2794 ioa_cfg->regs.clr_interrupt_reg);
2795
2796 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2797 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2798 temp_pcii_reg =
214777ba 2799 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
1da177e4
LT		 2800
2801 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2802 return 0;
2803
2804 udelay(10);
2805 delay += 10;
2806 }
2807
2808 return 0;
2809}
2810
2811#ifdef CONFIG_SCSI_IPR_DUMP
2812/**
2813 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2814 * @ioa_cfg: ioa config struct
2815 * @pci_address: adapter address
2816 * @length: length of data to copy
2817 *
2818 * Copy data from PCI adapter to kernel buffer.
2819 * Note: length MUST be a 4 byte multiple
2820 * Return value:
2821 * 0 on success / other on failure
2822 **/
2823static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2824 unsigned long pci_address, u32 length)
2825{
2826 int bytes_copied = 0;
4d4dd706 2827 int cur_len, rc, rem_len, rem_page_len, max_dump_size;
1da177e4
LT		 2828 __be32 *page;
2829 unsigned long lock_flags = 0;
2830 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2831
4d4dd706
KSS		 2832 if (ioa_cfg->sis64)
2833 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2834 else
2835 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2836
1da177e4 2837 while (bytes_copied < length &&
4d4dd706 2838 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) {
1da177e4
LT		 2839 if (ioa_dump->page_offset >= PAGE_SIZE ||
2840 ioa_dump->page_offset == 0) {
2841 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2842
2843 if (!page) {
2844 ipr_trace;
2845 return bytes_copied;
2846 }
2847
2848 ioa_dump->page_offset = 0;
2849 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2850 ioa_dump->next_page_index++;
2851 } else
2852 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2853
2854 rem_len = length - bytes_copied;
2855 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2856 cur_len = min(rem_len, rem_page_len);
2857
2858 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2859 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2860 rc = -EIO;
2861 } else {
2862 rc = ipr_get_ldump_data_section(ioa_cfg,
2863 pci_address + bytes_copied,
2864 &page[ioa_dump->page_offset / 4],
2865 (cur_len / sizeof(u32)));
2866 }
2867 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2868
2869 if (!rc) {
2870 ioa_dump->page_offset += cur_len;
2871 bytes_copied += cur_len;
2872 } else {
2873 ipr_trace;
2874 break;
2875 }
2876 schedule();
2877 }
2878
2879 return bytes_copied;
2880}
2881
2882/**
2883 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2884 * @hdr: dump entry header struct
2885 *
2886 * Return value:
2887 * nothing
2888 **/
2889static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2890{
2891 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2892 hdr->num_elems = 1;
2893 hdr->offset = sizeof(*hdr);
2894 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2895}
2896
2897/**
2898 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2899 * @ioa_cfg: ioa config struct
2900 * @driver_dump: driver dump struct
2901 *
2902 * Return value:
2903 * nothing
2904 **/
2905static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2906 struct ipr_driver_dump *driver_dump)
2907{
2908 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2909
2910 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2911 driver_dump->ioa_type_entry.hdr.len =
2912 sizeof(struct ipr_dump_ioa_type_entry) -
2913 sizeof(struct ipr_dump_entry_header);
2914 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2915 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2916 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2917 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2918 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2919 ucode_vpd->minor_release[1];
2920 driver_dump->hdr.num_entries++;
2921}
2922
2923/**
2924 * ipr_dump_version_data - Fill in the driver version in the dump.
2925 * @ioa_cfg: ioa config struct
2926 * @driver_dump: driver dump struct
2927 *
2928 * Return value:
2929 * nothing
2930 **/
2931static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2932 struct ipr_driver_dump *driver_dump)
2933{
2934 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2935 driver_dump->version_entry.hdr.len =
2936 sizeof(struct ipr_dump_version_entry) -
2937 sizeof(struct ipr_dump_entry_header);
2938 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2939 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2940 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
2941 driver_dump->hdr.num_entries++;
2942}
2943
2944/**
2945 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
2946 * @ioa_cfg: ioa config struct
2947 * @driver_dump: driver dump struct
2948 *
2949 * Return value:
2950 * nothing
2951 **/
2952static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
2953 struct ipr_driver_dump *driver_dump)
2954{
2955 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
2956 driver_dump->trace_entry.hdr.len =
2957 sizeof(struct ipr_dump_trace_entry) -
2958 sizeof(struct ipr_dump_entry_header);
2959 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2960 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
2961 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
2962 driver_dump->hdr.num_entries++;
2963}
2964
2965/**
2966 * ipr_dump_location_data - Fill in the IOA location in the dump.
2967 * @ioa_cfg: ioa config struct
2968 * @driver_dump: driver dump struct
2969 *
2970 * Return value:
2971 * nothing
2972 **/
2973static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
2974 struct ipr_driver_dump *driver_dump)
2975{
2976 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
2977 driver_dump->location_entry.hdr.len =
2978 sizeof(struct ipr_dump_location_entry) -
2979 sizeof(struct ipr_dump_entry_header);
2980 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2981 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
71610f55 2982 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
1da177e4
LT		 2983 driver_dump->hdr.num_entries++;
2984}
2985
2986/**
2987 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
2988 * @ioa_cfg: ioa config struct
2989 * @dump: dump struct
2990 *
2991 * Return value:
2992 * nothing
2993 **/
2994static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
2995{
2996 unsigned long start_addr, sdt_word;
2997 unsigned long lock_flags = 0;
2998 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
2999 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
4d4dd706
KSS		 3000 u32 num_entries, max_num_entries, start_off, end_off;
3001 u32 max_dump_size, bytes_to_copy, bytes_copied, rc;
1da177e4 3002 struct ipr_sdt *sdt;
dcbad00e 3003 int valid = 1;
1da177e4
LT		 3004 int i;
3005
3006 ENTER;
3007
3008 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3009
41e9a696 3010 if (ioa_cfg->sdt_state != READ_DUMP) {
1da177e4
LT		 3011 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3012 return;
3013 }
3014
110def85
WB		 3015 if (ioa_cfg->sis64) {
3016 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3017 ssleep(IPR_DUMP_DELAY_SECONDS);
3018 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3019 }
3020
1da177e4
LT		 3021 start_addr = readl(ioa_cfg->ioa_mailbox);
3022
dcbad00e 3023 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
1da177e4
LT		 3024 dev_err(&ioa_cfg->pdev->dev,
3025 "Invalid dump table format: %lx\n", start_addr);
3026 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3027 return;
3028 }
3029
3030 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
3031
3032 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
3033
3034 /* Initialize the overall dump header */
3035 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
3036 driver_dump->hdr.num_entries = 1;
3037 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
3038 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
3039 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
3040 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
3041
3042 ipr_dump_version_data(ioa_cfg, driver_dump);
3043 ipr_dump_location_data(ioa_cfg, driver_dump);
3044 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
3045 ipr_dump_trace_data(ioa_cfg, driver_dump);
3046
3047 /* Update dump_header */
3048 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
3049
3050 /* IOA Dump entry */
3051 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
1da177e4
LT		 3052 ioa_dump->hdr.len = 0;
3053 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3054 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
3055
3056 /* First entries in sdt are actually a list of dump addresses and
3057 lengths to gather the real dump data. sdt represents the pointer
3058 to the ioa generated dump table. Dump data will be extracted based
3059 on entries in this table */
3060 sdt = &ioa_dump->sdt;
3061
4d4dd706
KSS		 3062 if (ioa_cfg->sis64) {
3063 max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES;
3064 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
3065 } else {
3066 max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES;
3067 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
3068 }
3069
3070 bytes_to_copy = offsetof(struct ipr_sdt, entry) +
3071 (max_num_entries * sizeof(struct ipr_sdt_entry));
1da177e4 3072 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
4d4dd706 3073 bytes_to_copy / sizeof(__be32));
1da177e4
LT		 3074
3075 /* Smart Dump table is ready to use and the first entry is valid */
dcbad00e
WB		 3076 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
3077 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 3078 dev_err(&ioa_cfg->pdev->dev,
3079 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
3080 rc, be32_to_cpu(sdt->hdr.state));
3081 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
3082 ioa_cfg->sdt_state = DUMP_OBTAINED;
3083 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3084 return;
3085 }
3086
3087 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
3088
4d4dd706
KSS		 3089 if (num_entries > max_num_entries)
3090 num_entries = max_num_entries;
3091
3092 /* Update dump length to the actual data to be copied */
3093 dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header);
3094 if (ioa_cfg->sis64)
3095 dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry);
3096 else
3097 dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry);
1da177e4
LT		 3098
3099 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3100
3101 for (i = 0; i < num_entries; i++) {
4d4dd706 3102 if (ioa_dump->hdr.len > max_dump_size) {
1da177e4
LT		 3103 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3104 break;
3105 }
3106
3107 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
dcbad00e
WB		 3108 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
3109 if (ioa_cfg->sis64)
3110 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
3111 else {
3112 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
3113 end_off = be32_to_cpu(sdt->entry[i].end_token);
3114
3115 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
3116 bytes_to_copy = end_off - start_off;
3117 else
3118 valid = 0;
3119 }
3120 if (valid) {
4d4dd706 3121 if (bytes_to_copy > max_dump_size) {
1da177e4
LT		 3122 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
3123 continue;
3124 }
3125
3126 /* Copy data from adapter to driver buffers */
3127 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
3128 bytes_to_copy);
3129
3130 ioa_dump->hdr.len += bytes_copied;
3131
3132 if (bytes_copied != bytes_to_copy) {
3133 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3134 break;
3135 }
3136 }
3137 }
3138 }
3139
3140 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3141
3142 /* Update dump_header */
3143 driver_dump->hdr.len += ioa_dump->hdr.len;
3144 wmb();
3145 ioa_cfg->sdt_state = DUMP_OBTAINED;
3146 LEAVE;
3147}
3148
3149#else
203fa3fe 3150#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while (0)
1da177e4
LT		 3151#endif
3152
3153/**
3154 * ipr_release_dump - Free adapter dump memory
3155 * @kref: kref struct
3156 *
3157 * Return value:
3158 * nothing
3159 **/
3160static void ipr_release_dump(struct kref *kref)
3161{
203fa3fe 3162 struct ipr_dump *dump = container_of(kref, struct ipr_dump, kref);
1da177e4
LT		 3163 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3164 unsigned long lock_flags = 0;
3165 int i;
3166
3167 ENTER;
3168 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3169 ioa_cfg->dump = NULL;
3170 ioa_cfg->sdt_state = INACTIVE;
3171 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3172
3173 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3174 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3175
4d4dd706 3176 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 3177 kfree(dump);
3178 LEAVE;
3179}
3180
3181/**
3182 * ipr_worker_thread - Worker thread
c4028958 3183 * @work: ioa config struct
1da177e4
LT		 3184 *
3185 * Called at task level from a work thread. This function takes care
3186 * of adding and removing device from the mid-layer as configuration
3187 * changes are detected by the adapter.
3188 *
3189 * Return value:
3190 * nothing
3191 **/
c4028958 3192static void ipr_worker_thread(struct work_struct *work)
1da177e4
LT		 3193{
3194 unsigned long lock_flags;
3195 struct ipr_resource_entry *res;
3196 struct scsi_device *sdev;
3197 struct ipr_dump *dump;
c4028958
DH		 3198 struct ipr_ioa_cfg *ioa_cfg =
3199 container_of(work, struct ipr_ioa_cfg, work_q);
1da177e4
LT		 3200 u8 bus, target, lun;
3201 int did_work;
3202
3203 ENTER;
3204 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3205
41e9a696 3206 if (ioa_cfg->sdt_state == READ_DUMP) {
1da177e4
LT		 3207 dump = ioa_cfg->dump;
3208 if (!dump) {
3209 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3210 return;
3211 }
3212 kref_get(&dump->kref);
3213 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3214 ipr_get_ioa_dump(ioa_cfg, dump);
3215 kref_put(&dump->kref, ipr_release_dump);
3216
3217 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4c647e90 3218 if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout)
1da177e4
LT		 3219 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3220 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3221 return;
3222 }
3223
3224restart:
3225 do {
3226 did_work = 0;
56d6aa33 3227 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds ||
3228 !ioa_cfg->allow_ml_add_del) {
1da177e4
LT		 3229 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3230 return;
3231 }
3232
3233 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3234 if (res->del_from_ml && res->sdev) {
3235 did_work = 1;
3236 sdev = res->sdev;
3237 if (!scsi_device_get(sdev)) {
5767a1c4
KSS		 3238 if (!res->add_to_ml)
3239 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3240 else
3241 res->del_from_ml = 0;
1da177e4
LT		 3242 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3243 scsi_remove_device(sdev);
3244 scsi_device_put(sdev);
3245 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3246 }
3247 break;
3248 }
3249 }
203fa3fe 3250 } while (did_work);
1da177e4
LT		 3251
3252 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3253 if (res->add_to_ml) {
3e7ebdfa
WB		 3254 bus = res->bus;
3255 target = res->target;
3256 lun = res->lun;
1121b794 3257 res->add_to_ml = 0;
1da177e4
LT		 3258 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3259 scsi_add_device(ioa_cfg->host, bus, target, lun);
3260 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3261 goto restart;
3262 }
3263 }
3264
3265 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
ee959b00 3266 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
1da177e4
LT		 3267 LEAVE;
3268}
3269
3270#ifdef CONFIG_SCSI_IPR_TRACE
3271/**
3272 * ipr_read_trace - Dump the adapter trace
2c3c8bea 3273 * @filp: open sysfs file
1da177e4 3274 * @kobj: kobject struct
91a69029 3275 * @bin_attr: bin_attribute struct
1da177e4
LT		 3276 * @buf: buffer
3277 * @off: offset
3278 * @count: buffer size
3279 *
3280 * Return value:
3281 * number of bytes printed to buffer
3282 **/
2c3c8bea 3283static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
91a69029
ZR		 3284 struct bin_attribute *bin_attr,
3285 char *buf, loff_t off, size_t count)
1da177e4 3286{
ee959b00
TJ		 3287 struct device *dev = container_of(kobj, struct device, kobj);
3288 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3289 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3290 unsigned long lock_flags = 0;
d777aaf3 3291 ssize_t ret;
1da177e4
LT		 3292
3293 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3294 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3295 IPR_TRACE_SIZE);
1da177e4 3296 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3297
3298 return ret;
1da177e4
LT		 3299}
3300
3301static struct bin_attribute ipr_trace_attr = {
3302 .attr = {
3303 .name = "trace",
3304 .mode = S_IRUGO,
3305 },
3306 .size = 0,
3307 .read = ipr_read_trace,
3308};
3309#endif
3310
3311/**
3312 * ipr_show_fw_version - Show the firmware version
ee959b00
TJ		 3313 * @dev: class device struct
3314 * @buf: buffer
1da177e4
LT		 3315 *
3316 * Return value:
3317 * number of bytes printed to buffer
3318 **/
ee959b00
TJ		 3319static ssize_t ipr_show_fw_version(struct device *dev,
3320 struct device_attribute *attr, char *buf)
1da177e4 3321{
ee959b00 3322 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3323 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3324 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3325 unsigned long lock_flags = 0;
3326 int len;
3327
3328 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3329 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3330 ucode_vpd->major_release, ucode_vpd->card_type,
3331 ucode_vpd->minor_release[0],
3332 ucode_vpd->minor_release[1]);
3333 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3334 return len;
3335}
3336
ee959b00 3337static struct device_attribute ipr_fw_version_attr = {
1da177e4
LT		 3338 .attr = {
3339 .name = "fw_version",
3340 .mode = S_IRUGO,
3341 },
3342 .show = ipr_show_fw_version,
3343};
3344
3345/**
3346 * ipr_show_log_level - Show the adapter's error logging level
ee959b00
TJ		 3347 * @dev: class device struct
3348 * @buf: buffer
1da177e4
LT		 3349 *
3350 * Return value:
3351 * number of bytes printed to buffer
3352 **/
ee959b00
TJ		 3353static ssize_t ipr_show_log_level(struct device *dev,
3354 struct device_attribute *attr, char *buf)
1da177e4 3355{
ee959b00 3356 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3357 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3358 unsigned long lock_flags = 0;
3359 int len;
3360
3361 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3362 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3363 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3364 return len;
3365}
3366
3367/**
3368 * ipr_store_log_level - Change the adapter's error logging level
ee959b00
TJ		 3369 * @dev: class device struct
3370 * @buf: buffer
1da177e4
LT		 3371 *
3372 * Return value:
3373 * number of bytes printed to buffer
3374 **/
ee959b00 3375static ssize_t ipr_store_log_level(struct device *dev,
203fa3fe 3376 struct device_attribute *attr,
1da177e4
LT		 3377 const char *buf, size_t count)
3378{
ee959b00 3379 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3380 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3381 unsigned long lock_flags = 0;
3382
3383 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3384 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3385 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3386 return strlen(buf);
3387}
3388
ee959b00 3389static struct device_attribute ipr_log_level_attr = {
1da177e4
LT		 3390 .attr = {
3391 .name = "log_level",
3392 .mode = S_IRUGO | S_IWUSR,
3393 },
3394 .show = ipr_show_log_level,
3395 .store = ipr_store_log_level
3396};
3397
3398/**
3399 * ipr_store_diagnostics - IOA Diagnostics interface
ee959b00
TJ		 3400 * @dev: device struct
3401 * @buf: buffer
3402 * @count: buffer size
1da177e4
LT		 3403 *
3404 * This function will reset the adapter and wait a reasonable
3405 * amount of time for any errors that the adapter might log.
3406 *
3407 * Return value:
3408 * count on success / other on failure
3409 **/
ee959b00
TJ		 3410static ssize_t ipr_store_diagnostics(struct device *dev,
3411 struct device_attribute *attr,
1da177e4
LT		 3412 const char *buf, size_t count)
3413{
ee959b00 3414 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3415 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3416 unsigned long lock_flags = 0;
3417 int rc = count;
3418
3419 if (!capable(CAP_SYS_ADMIN))
3420 return -EACCES;
3421
1da177e4 3422 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 3423 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 3424 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3425 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3426 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3427 }
3428
1da177e4
LT		 3429 ioa_cfg->errors_logged = 0;
3430 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3431
3432 if (ioa_cfg->in_reset_reload) {
3433 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3434 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3435
3436 /* Wait for a second for any errors to be logged */
3437 msleep(1000);
3438 } else {
3439 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3440 return -EIO;
3441 }
3442
3443 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3444 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3445 rc = -EIO;
3446 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3447
3448 return rc;
3449}
3450
ee959b00 3451static struct device_attribute ipr_diagnostics_attr = {
1da177e4
LT		 3452 .attr = {
3453 .name = "run_diagnostics",
3454 .mode = S_IWUSR,
3455 },
3456 .store = ipr_store_diagnostics
3457};
3458
f37eb54b
BK		 3459/**
3460 * ipr_show_adapter_state - Show the adapter's state
ee959b00
TJ		 3461 * @class_dev: device struct
3462 * @buf: buffer
f37eb54b
BK		 3463 *
3464 * Return value:
3465 * number of bytes printed to buffer
3466 **/
ee959b00
TJ		 3467static ssize_t ipr_show_adapter_state(struct device *dev,
3468 struct device_attribute *attr, char *buf)
f37eb54b 3469{
ee959b00 3470 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b
BK		 3471 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3472 unsigned long lock_flags = 0;
3473 int len;
3474
3475 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
56d6aa33 3476 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
f37eb54b
BK		 3477 len = snprintf(buf, PAGE_SIZE, "offline\n");
3478 else
3479 len = snprintf(buf, PAGE_SIZE, "online\n");
3480 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3481 return len;
3482}
3483
3484/**
3485 * ipr_store_adapter_state - Change adapter state
ee959b00
TJ		 3486 * @dev: device struct
3487 * @buf: buffer
3488 * @count: buffer size
f37eb54b
BK		 3489 *
3490 * This function will change the adapter's state.
3491 *
3492 * Return value:
3493 * count on success / other on failure
3494 **/
ee959b00
TJ		 3495static ssize_t ipr_store_adapter_state(struct device *dev,
3496 struct device_attribute *attr,
f37eb54b
BK		 3497 const char *buf, size_t count)
3498{
ee959b00 3499 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b
BK		 3500 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3501 unsigned long lock_flags;
56d6aa33 3502 int result = count, i;
f37eb54b
BK		 3503
3504 if (!capable(CAP_SYS_ADMIN))
3505 return -EACCES;
3506
3507 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
56d6aa33 3508 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead &&
3509 !strncmp(buf, "online", 6)) {
3510 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
3511 spin_lock(&ioa_cfg->hrrq[i]._lock);
3512 ioa_cfg->hrrq[i].ioa_is_dead = 0;
3513 spin_unlock(&ioa_cfg->hrrq[i]._lock);
3514 }
3515 wmb();
f37eb54b
BK		 3516 ioa_cfg->reset_retries = 0;
3517 ioa_cfg->in_ioa_bringdown = 0;
3518 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3519 }
3520 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3521 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3522
3523 return result;
3524}
3525
ee959b00 3526static struct device_attribute ipr_ioa_state_attr = {
f37eb54b 3527 .attr = {
49dd0961 3528 .name = "online_state",
f37eb54b
BK		 3529 .mode = S_IRUGO | S_IWUSR,
3530 },
3531 .show = ipr_show_adapter_state,
3532 .store = ipr_store_adapter_state
3533};
3534
1da177e4
LT		 3535/**
3536 * ipr_store_reset_adapter - Reset the adapter
ee959b00
TJ		 3537 * @dev: device struct
3538 * @buf: buffer
3539 * @count: buffer size
1da177e4
LT		 3540 *
3541 * This function will reset the adapter.
3542 *
3543 * Return value:
3544 * count on success / other on failure
3545 **/
ee959b00
TJ		 3546static ssize_t ipr_store_reset_adapter(struct device *dev,
3547 struct device_attribute *attr,
1da177e4
LT		 3548 const char *buf, size_t count)
3549{
ee959b00 3550 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3551 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3552 unsigned long lock_flags;
3553 int result = count;
3554
3555 if (!capable(CAP_SYS_ADMIN))
3556 return -EACCES;
3557
3558 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3559 if (!ioa_cfg->in_reset_reload)
3560 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3561 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3562 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3563
3564 return result;
3565}
3566
ee959b00 3567static struct device_attribute ipr_ioa_reset_attr = {
1da177e4
LT		 3568 .attr = {
3569 .name = "reset_host",
3570 .mode = S_IWUSR,
3571 },
3572 .store = ipr_store_reset_adapter
3573};
3574
b53d124a 3575static int ipr_iopoll(struct blk_iopoll *iop, int budget);
3576 /**
3577 * ipr_show_iopoll_weight - Show ipr polling mode
3578 * @dev: class device struct
3579 * @buf: buffer
3580 *
3581 * Return value:
3582 * number of bytes printed to buffer
3583 **/
3584static ssize_t ipr_show_iopoll_weight(struct device *dev,
3585 struct device_attribute *attr, char *buf)
3586{
3587 struct Scsi_Host *shost = class_to_shost(dev);
3588 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3589 unsigned long lock_flags = 0;
3590 int len;
3591
3592 spin_lock_irqsave(shost->host_lock, lock_flags);
3593 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->iopoll_weight);
3594 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3595
3596 return len;
3597}
3598
3599/**
3600 * ipr_store_iopoll_weight - Change the adapter's polling mode
3601 * @dev: class device struct
3602 * @buf: buffer
3603 *
3604 * Return value:
3605 * number of bytes printed to buffer
3606 **/
3607static ssize_t ipr_store_iopoll_weight(struct device *dev,
3608 struct device_attribute *attr,
3609 const char *buf, size_t count)
3610{
3611 struct Scsi_Host *shost = class_to_shost(dev);
3612 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3613 unsigned long user_iopoll_weight;
3614 unsigned long lock_flags = 0;
3615 int i;
3616
3617 if (!ioa_cfg->sis64) {
3618 dev_info(&ioa_cfg->pdev->dev, "blk-iopoll not supported on this adapter\n");
3619 return -EINVAL;
3620 }
3621 if (kstrtoul(buf, 10, &user_iopoll_weight))
3622 return -EINVAL;
3623
3624 if (user_iopoll_weight > 256) {
3625 dev_info(&ioa_cfg->pdev->dev, "Invalid blk-iopoll weight. It must be less than 256\n");
3626 return -EINVAL;
3627 }
3628
3629 if (user_iopoll_weight == ioa_cfg->iopoll_weight) {
3630 dev_info(&ioa_cfg->pdev->dev, "Current blk-iopoll weight has the same weight\n");
3631 return strlen(buf);
3632 }
3633
3634 if (blk_iopoll_enabled && ioa_cfg->iopoll_weight &&
3635 ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
3636 for (i = 1; i < ioa_cfg->hrrq_num; i++)
3637 blk_iopoll_disable(&ioa_cfg->hrrq[i].iopoll);
3638 }
3639
3640 spin_lock_irqsave(shost->host_lock, lock_flags);
3641 ioa_cfg->iopoll_weight = user_iopoll_weight;
3642 if (blk_iopoll_enabled && ioa_cfg->iopoll_weight &&
3643 ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
3644 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
3645 blk_iopoll_init(&ioa_cfg->hrrq[i].iopoll,
3646 ioa_cfg->iopoll_weight, ipr_iopoll);
3647 blk_iopoll_enable(&ioa_cfg->hrrq[i].iopoll);
3648 }
3649 }
3650 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3651
3652 return strlen(buf);
3653}
3654
3655static struct device_attribute ipr_iopoll_weight_attr = {
3656 .attr = {
3657 .name = "iopoll_weight",
3658 .mode = S_IRUGO | S_IWUSR,
3659 },
3660 .show = ipr_show_iopoll_weight,
3661 .store = ipr_store_iopoll_weight
3662};
3663
1da177e4
LT		 3664/**
3665 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3666 * @buf_len: buffer length
3667 *
3668 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3669 * list to use for microcode download
3670 *
3671 * Return value:
3672 * pointer to sglist / NULL on failure
3673 **/
3674static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3675{
3676 int sg_size, order, bsize_elem, num_elem, i, j;
3677 struct ipr_sglist *sglist;
3678 struct scatterlist *scatterlist;
3679 struct page *page;
3680
3681 /* Get the minimum size per scatter/gather element */
3682 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3683
3684 /* Get the actual size per element */
3685 order = get_order(sg_size);
3686
3687 /* Determine the actual number of bytes per element */
3688 bsize_elem = PAGE_SIZE * (1 << order);
3689
3690 /* Determine the actual number of sg entries needed */
3691 if (buf_len % bsize_elem)
3692 num_elem = (buf_len / bsize_elem) + 1;
3693 else
3694 num_elem = buf_len / bsize_elem;
3695
3696 /* Allocate a scatter/gather list for the DMA */
0bc42e35 3697 sglist = kzalloc(sizeof(struct ipr_sglist) +
1da177e4
LT		 3698 (sizeof(struct scatterlist) * (num_elem - 1)),
3699 GFP_KERNEL);
3700
3701 if (sglist == NULL) {
3702 ipr_trace;
3703 return NULL;
3704 }
3705
1da177e4 3706 scatterlist = sglist->scatterlist;
45711f1a 3707 sg_init_table(scatterlist, num_elem);
1da177e4
LT		 3708
3709 sglist->order = order;
3710 sglist->num_sg = num_elem;
3711
3712 /* Allocate a bunch of sg elements */
3713 for (i = 0; i < num_elem; i++) {
3714 page = alloc_pages(GFP_KERNEL, order);
3715 if (!page) {
3716 ipr_trace;
3717
3718 /* Free up what we already allocated */
3719 for (j = i - 1; j >= 0; j--)
45711f1a 3720 __free_pages(sg_page(&scatterlist[j]), order);
1da177e4
LT		 3721 kfree(sglist);
3722 return NULL;
3723 }
3724
642f1490 3725 sg_set_page(&scatterlist[i], page, 0, 0);
1da177e4
LT		 3726 }
3727
3728 return sglist;
3729}
3730
3731/**
3732 * ipr_free_ucode_buffer - Frees a microcode download buffer
3733 * @p_dnld: scatter/gather list pointer
3734 *
3735 * Free a DMA'able ucode download buffer previously allocated with
3736 * ipr_alloc_ucode_buffer
3737 *
3738 * Return value:
3739 * nothing
3740 **/
3741static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3742{
3743 int i;
3744
3745 for (i = 0; i < sglist->num_sg; i++)
45711f1a 3746 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
1da177e4
LT		 3747
3748 kfree(sglist);
3749}
3750
3751/**
3752 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3753 * @sglist: scatter/gather list pointer
3754 * @buffer: buffer pointer
3755 * @len: buffer length
3756 *
3757 * Copy a microcode image from a user buffer into a buffer allocated by
3758 * ipr_alloc_ucode_buffer
3759 *
3760 * Return value:
3761 * 0 on success / other on failure
3762 **/
3763static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3764 u8 *buffer, u32 len)
3765{
3766 int bsize_elem, i, result = 0;
3767 struct scatterlist *scatterlist;
3768 void *kaddr;
3769
3770 /* Determine the actual number of bytes per element */
3771 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3772
3773 scatterlist = sglist->scatterlist;
3774
3775 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
45711f1a
JA		 3776 struct page *page = sg_page(&scatterlist[i]);
3777
3778 kaddr = kmap(page);
1da177e4 3779 memcpy(kaddr, buffer, bsize_elem);
45711f1a 3780 kunmap(page);
1da177e4
LT		 3781
3782 scatterlist[i].length = bsize_elem;
3783
3784 if (result != 0) {
3785 ipr_trace;
3786 return result;
3787 }
3788 }
3789
3790 if (len % bsize_elem) {
45711f1a
JA		 3791 struct page *page = sg_page(&scatterlist[i]);
3792
3793 kaddr = kmap(page);
1da177e4 3794 memcpy(kaddr, buffer, len % bsize_elem);
45711f1a 3795 kunmap(page);
1da177e4
LT		 3796
3797 scatterlist[i].length = len % bsize_elem;
3798 }
3799
3800 sglist->buffer_len = len;
3801 return result;
3802}
3803
a32c055f
WB		 3804/**
3805 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3806 * @ipr_cmd: ipr command struct
3807 * @sglist: scatter/gather list
3808 *
3809 * Builds a microcode download IOA data list (IOADL).
3810 *
3811 **/
3812static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3813 struct ipr_sglist *sglist)
3814{
3815 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3816 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3817 struct scatterlist *scatterlist = sglist->scatterlist;
3818 int i;
3819
3820 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3821 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3822 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3823
3824 ioarcb->ioadl_len =
3825 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3826 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3827 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3828 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3829 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3830 }
3831
3832 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3833}
3834
1da177e4 3835/**
12baa420 3836 * ipr_build_ucode_ioadl - Build a microcode download IOADL
1da177e4
LT		 3837 * @ipr_cmd: ipr command struct
3838 * @sglist: scatter/gather list
1da177e4 3839 *
12baa420 3840 * Builds a microcode download IOA data list (IOADL).
1da177e4 3841 *
1da177e4 3842 **/
12baa420
BK		 3843static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3844 struct ipr_sglist *sglist)
1da177e4 3845{
1da177e4 3846 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 3847 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4
LT		 3848 struct scatterlist *scatterlist = sglist->scatterlist;
3849 int i;
3850
12baa420 3851 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
1da177e4 3852 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 3853 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3854
3855 ioarcb->ioadl_len =
1da177e4
LT		 3856 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3857
3858 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3859 ioadl[i].flags_and_data_len =
3860 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3861 ioadl[i].address =
3862 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3863 }
3864
12baa420
BK		 3865 ioadl[i-1].flags_and_data_len |=
3866 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3867}
3868
3869/**
3870 * ipr_update_ioa_ucode - Update IOA's microcode
3871 * @ioa_cfg: ioa config struct
3872 * @sglist: scatter/gather list
3873 *
3874 * Initiate an adapter reset to update the IOA's microcode
3875 *
3876 * Return value:
3877 * 0 on success / -EIO on failure
3878 **/
3879static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3880 struct ipr_sglist *sglist)
3881{
3882 unsigned long lock_flags;
3883
3884 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 3885 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 3886 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3887 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3888 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3889 }
12baa420
BK		 3890
3891 if (ioa_cfg->ucode_sglist) {
3892 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3893 dev_err(&ioa_cfg->pdev->dev,
3894 "Microcode download already in progress\n");
3895 return -EIO;
1da177e4 3896 }
12baa420
BK		 3897
3898 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3899 sglist->num_sg, DMA_TO_DEVICE);
3900
3901 if (!sglist->num_dma_sg) {
3902 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3903 dev_err(&ioa_cfg->pdev->dev,
3904 "Failed to map microcode download buffer!\n");
1da177e4
LT		 3905 return -EIO;
3906 }
3907
12baa420
BK		 3908 ioa_cfg->ucode_sglist = sglist;
3909 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3910 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3911 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3912
3913 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3914 ioa_cfg->ucode_sglist = NULL;
3915 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4
LT		 3916 return 0;
3917}
3918
3919/**
3920 * ipr_store_update_fw - Update the firmware on the adapter
ee959b00
TJ		 3921 * @class_dev: device struct
3922 * @buf: buffer
3923 * @count: buffer size
1da177e4
LT		 3924 *
3925 * This function will update the firmware on the adapter.
3926 *
3927 * Return value:
3928 * count on success / other on failure
3929 **/
ee959b00
TJ		 3930static ssize_t ipr_store_update_fw(struct device *dev,
3931 struct device_attribute *attr,
3932 const char *buf, size_t count)
1da177e4 3933{
ee959b00 3934 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3935 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3936 struct ipr_ucode_image_header *image_hdr;
3937 const struct firmware *fw_entry;
3938 struct ipr_sglist *sglist;
1da177e4
LT		 3939 char fname[100];
3940 char *src;
3941 int len, result, dnld_size;
3942
3943 if (!capable(CAP_SYS_ADMIN))
3944 return -EACCES;
3945
3946 len = snprintf(fname, 99, "%s", buf);
3947 fname[len-1] = '\0';
3948
203fa3fe 3949 if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
1da177e4
LT		 3950 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3951 return -EIO;
3952 }
3953
3954 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3955
1da177e4
LT		 3956 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3957 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3958 sglist = ipr_alloc_ucode_buffer(dnld_size);
3959
3960 if (!sglist) {
3961 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3962 release_firmware(fw_entry);
3963 return -ENOMEM;
3964 }
3965
3966 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3967
3968 if (result) {
3969 dev_err(&ioa_cfg->pdev->dev,
3970 "Microcode buffer copy to DMA buffer failed\n");
12baa420 3971 goto out;
1da177e4
LT		 3972 }
3973
14ed9cc7
WB		 3974 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
3975
12baa420 3976 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
1da177e4 3977
12baa420
BK		 3978 if (!result)
3979 result = count;
3980out:
1da177e4
LT		 3981 ipr_free_ucode_buffer(sglist);
3982 release_firmware(fw_entry);
12baa420 3983 return result;
1da177e4
LT		 3984}
3985
ee959b00 3986static struct device_attribute ipr_update_fw_attr = {
1da177e4
LT		 3987 .attr = {
3988 .name = "update_fw",
3989 .mode = S_IWUSR,
3990 },
3991 .store = ipr_store_update_fw
3992};
3993
75576bb9
WB		 3994/**
3995 * ipr_show_fw_type - Show the adapter's firmware type.
3996 * @dev: class device struct
3997 * @buf: buffer
3998 *
3999 * Return value:
4000 * number of bytes printed to buffer
4001 **/
4002static ssize_t ipr_show_fw_type(struct device *dev,
4003 struct device_attribute *attr, char *buf)
4004{
4005 struct Scsi_Host *shost = class_to_shost(dev);
4006 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4007 unsigned long lock_flags = 0;
4008 int len;
4009
4010 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4011 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
4012 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4013 return len;
4014}
4015
4016static struct device_attribute ipr_ioa_fw_type_attr = {
4017 .attr = {
4018 .name = "fw_type",
4019 .mode = S_IRUGO,
4020 },
4021 .show = ipr_show_fw_type
4022};
4023
ee959b00 4024static struct device_attribute *ipr_ioa_attrs[] = {
1da177e4
LT		 4025 &ipr_fw_version_attr,
4026 &ipr_log_level_attr,
4027 &ipr_diagnostics_attr,
f37eb54b 4028 &ipr_ioa_state_attr,
1da177e4
LT		 4029 &ipr_ioa_reset_attr,
4030 &ipr_update_fw_attr,
75576bb9 4031 &ipr_ioa_fw_type_attr,
b53d124a 4032 &ipr_iopoll_weight_attr,
1da177e4
LT		 4033 NULL,
4034};
4035
4036#ifdef CONFIG_SCSI_IPR_DUMP
4037/**
4038 * ipr_read_dump - Dump the adapter
2c3c8bea 4039 * @filp: open sysfs file
1da177e4 4040 * @kobj: kobject struct
91a69029 4041 * @bin_attr: bin_attribute struct
1da177e4
LT		 4042 * @buf: buffer
4043 * @off: offset
4044 * @count: buffer size
4045 *
4046 * Return value:
4047 * number of bytes printed to buffer
4048 **/
2c3c8bea 4049static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4050 struct bin_attribute *bin_attr,
4051 char *buf, loff_t off, size_t count)
1da177e4 4052{
ee959b00 4053 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4054 struct Scsi_Host *shost = class_to_shost(cdev);
4055 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4056 struct ipr_dump *dump;
4057 unsigned long lock_flags = 0;
4058 char *src;
4d4dd706 4059 int len, sdt_end;
1da177e4
LT		 4060 size_t rc = count;
4061
4062 if (!capable(CAP_SYS_ADMIN))
4063 return -EACCES;
4064
4065 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4066 dump = ioa_cfg->dump;
4067
4068 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
4069 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4070 return 0;
4071 }
4072 kref_get(&dump->kref);
4073 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4074
4075 if (off > dump->driver_dump.hdr.len) {
4076 kref_put(&dump->kref, ipr_release_dump);
4077 return 0;
4078 }
4079
4080 if (off + count > dump->driver_dump.hdr.len) {
4081 count = dump->driver_dump.hdr.len - off;
4082 rc = count;
4083 }
4084
4085 if (count && off < sizeof(dump->driver_dump)) {
4086 if (off + count > sizeof(dump->driver_dump))
4087 len = sizeof(dump->driver_dump) - off;
4088 else
4089 len = count;
4090 src = (u8 *)&dump->driver_dump + off;
4091 memcpy(buf, src, len);
4092 buf += len;
4093 off += len;
4094 count -= len;
4095 }
4096
4097 off -= sizeof(dump->driver_dump);
4098
4d4dd706
KSS		 4099 if (ioa_cfg->sis64)
4100 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4101 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
4102 sizeof(struct ipr_sdt_entry));
4103 else
4104 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4105 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
4106
4107 if (count && off < sdt_end) {
4108 if (off + count > sdt_end)
4109 len = sdt_end - off;
1da177e4
LT		 4110 else
4111 len = count;
4112 src = (u8 *)&dump->ioa_dump + off;
4113 memcpy(buf, src, len);
4114 buf += len;
4115 off += len;
4116 count -= len;
4117 }
4118
4d4dd706 4119 off -= sdt_end;
1da177e4
LT		 4120
4121 while (count) {
4122 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
4123 len = PAGE_ALIGN(off) - off;
4124 else
4125 len = count;
4126 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
4127 src += off & ~PAGE_MASK;
4128 memcpy(buf, src, len);
4129 buf += len;
4130 off += len;
4131 count -= len;
4132 }
4133
4134 kref_put(&dump->kref, ipr_release_dump);
4135 return rc;
4136}
4137
4138/**
4139 * ipr_alloc_dump - Prepare for adapter dump
4140 * @ioa_cfg: ioa config struct
4141 *
4142 * Return value:
4143 * 0 on success / other on failure
4144 **/
4145static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
4146{
4147 struct ipr_dump *dump;
4d4dd706 4148 __be32 **ioa_data;
1da177e4
LT		 4149 unsigned long lock_flags = 0;
4150
0bc42e35 4151 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
1da177e4
LT		 4152
4153 if (!dump) {
4154 ipr_err("Dump memory allocation failed\n");
4155 return -ENOMEM;
4156 }
4157
4d4dd706
KSS		 4158 if (ioa_cfg->sis64)
4159 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4160 else
4161 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4162
4163 if (!ioa_data) {
4164 ipr_err("Dump memory allocation failed\n");
4165 kfree(dump);
4166 return -ENOMEM;
4167 }
4168
4169 dump->ioa_dump.ioa_data = ioa_data;
4170
1da177e4
LT		 4171 kref_init(&dump->kref);
4172 dump->ioa_cfg = ioa_cfg;
4173
4174 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4175
4176 if (INACTIVE != ioa_cfg->sdt_state) {
4177 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4d4dd706 4178 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 4179 kfree(dump);
4180 return 0;
4181 }
4182
4183 ioa_cfg->dump = dump;
4184 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
56d6aa33 4185 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && !ioa_cfg->dump_taken) {
1da177e4
LT		 4186 ioa_cfg->dump_taken = 1;
4187 schedule_work(&ioa_cfg->work_q);
4188 }
4189 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4190
1da177e4
LT		 4191 return 0;
4192}
4193
4194/**
4195 * ipr_free_dump - Free adapter dump memory
4196 * @ioa_cfg: ioa config struct
4197 *
4198 * Return value:
4199 * 0 on success / other on failure
4200 **/
4201static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
4202{
4203 struct ipr_dump *dump;
4204 unsigned long lock_flags = 0;
4205
4206 ENTER;
4207
4208 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4209 dump = ioa_cfg->dump;
4210 if (!dump) {
4211 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4212 return 0;
4213 }
4214
4215 ioa_cfg->dump = NULL;
4216 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4217
4218 kref_put(&dump->kref, ipr_release_dump);
4219
4220 LEAVE;
4221 return 0;
4222}
4223
4224/**
4225 * ipr_write_dump - Setup dump state of adapter
2c3c8bea 4226 * @filp: open sysfs file
1da177e4 4227 * @kobj: kobject struct
91a69029 4228 * @bin_attr: bin_attribute struct
1da177e4
LT		 4229 * @buf: buffer
4230 * @off: offset
4231 * @count: buffer size
4232 *
4233 * Return value:
4234 * number of bytes printed to buffer
4235 **/
2c3c8bea 4236static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4237 struct bin_attribute *bin_attr,
4238 char *buf, loff_t off, size_t count)
1da177e4 4239{
ee959b00 4240 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4241 struct Scsi_Host *shost = class_to_shost(cdev);
4242 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4243 int rc;
4244
4245 if (!capable(CAP_SYS_ADMIN))
4246 return -EACCES;
4247
4248 if (buf[0] == '1')
4249 rc = ipr_alloc_dump(ioa_cfg);
4250 else if (buf[0] == '0')
4251 rc = ipr_free_dump(ioa_cfg);
4252 else
4253 return -EINVAL;
4254
4255 if (rc)
4256 return rc;
4257 else
4258 return count;
4259}
4260
4261static struct bin_attribute ipr_dump_attr = {
4262 .attr = {
4263 .name = "dump",
4264 .mode = S_IRUSR | S_IWUSR,
4265 },
4266 .size = 0,
4267 .read = ipr_read_dump,
4268 .write = ipr_write_dump
4269};
4270#else
4271static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4272#endif
4273
4274/**
4275 * ipr_change_queue_depth - Change the device's queue depth
4276 * @sdev: scsi device struct
4277 * @qdepth: depth to set
e881a172 4278 * @reason: calling context
1da177e4
LT		 4279 *
4280 * Return value:
4281 * actual depth set
4282 **/
e881a172
MC		 4283static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth,
4284 int reason)
1da177e4 4285{
35a39691
BK		 4286 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4287 struct ipr_resource_entry *res;
4288 unsigned long lock_flags = 0;
4289
e881a172
MC		 4290 if (reason != SCSI_QDEPTH_DEFAULT)
4291 return -EOPNOTSUPP;
4292
35a39691
BK		 4293 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4294 res = (struct ipr_resource_entry *)sdev->hostdata;
4295
4296 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4297 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4298 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4299
1da177e4
LT		 4300 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
4301 return sdev->queue_depth;
4302}
4303
4304/**
4305 * ipr_change_queue_type - Change the device's queue type
4306 * @dsev: scsi device struct
4307 * @tag_type: type of tags to use
4308 *
4309 * Return value:
4310 * actual queue type set
4311 **/
4312static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
4313{
4314 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4315 struct ipr_resource_entry *res;
4316 unsigned long lock_flags = 0;
4317
4318 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4319 res = (struct ipr_resource_entry *)sdev->hostdata;
4320
4321 if (res) {
4322 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
4323 /*
4324 * We don't bother quiescing the device here since the
4325 * adapter firmware does it for us.
4326 */
4327 scsi_set_tag_type(sdev, tag_type);
4328
4329 if (tag_type)
4330 scsi_activate_tcq(sdev, sdev->queue_depth);
4331 else
4332 scsi_deactivate_tcq(sdev, sdev->queue_depth);
4333 } else
4334 tag_type = 0;
4335 } else
4336 tag_type = 0;
4337
4338 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4339 return tag_type;
4340}
4341
4342/**
4343 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4344 * @dev: device struct
46d74563 4345 * @attr: device attribute structure
1da177e4
LT		 4346 * @buf: buffer
4347 *
4348 * Return value:
4349 * number of bytes printed to buffer
4350 **/
10523b3b 4351static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 4352{
4353 struct scsi_device *sdev = to_scsi_device(dev);
4354 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4355 struct ipr_resource_entry *res;
4356 unsigned long lock_flags = 0;
4357 ssize_t len = -ENXIO;
4358
4359 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4360 res = (struct ipr_resource_entry *)sdev->hostdata;
4361 if (res)
3e7ebdfa 4362 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
1da177e4
LT		 4363 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4364 return len;
4365}
4366
4367static struct device_attribute ipr_adapter_handle_attr = {
4368 .attr = {
4369 .name = "adapter_handle",
4370 .mode = S_IRUSR,
4371 },
4372 .show = ipr_show_adapter_handle
4373};
4374
3e7ebdfa 4375/**
5adcbeb3
WB		 4376 * ipr_show_resource_path - Show the resource path or the resource address for
4377 * this device.
3e7ebdfa 4378 * @dev: device struct
46d74563 4379 * @attr: device attribute structure
3e7ebdfa
WB		 4380 * @buf: buffer
4381 *
4382 * Return value:
4383 * number of bytes printed to buffer
4384 **/
4385static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4386{
4387 struct scsi_device *sdev = to_scsi_device(dev);
4388 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4389 struct ipr_resource_entry *res;
4390 unsigned long lock_flags = 0;
4391 ssize_t len = -ENXIO;
4392 char buffer[IPR_MAX_RES_PATH_LENGTH];
4393
4394 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4395 res = (struct ipr_resource_entry *)sdev->hostdata;
5adcbeb3 4396 if (res && ioa_cfg->sis64)
3e7ebdfa 4397 len = snprintf(buf, PAGE_SIZE, "%s\n",
b3b3b407
BK		 4398 __ipr_format_res_path(res->res_path, buffer,
4399 sizeof(buffer)));
5adcbeb3
WB		 4400 else if (res)
4401 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4402 res->bus, res->target, res->lun);
4403
3e7ebdfa
WB		 4404 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4405 return len;
4406}
4407
4408static struct device_attribute ipr_resource_path_attr = {
4409 .attr = {
4410 .name = "resource_path",
75576bb9 4411 .mode = S_IRUGO,
3e7ebdfa
WB		 4412 },
4413 .show = ipr_show_resource_path
4414};
4415
46d74563
WB		 4416/**
4417 * ipr_show_device_id - Show the device_id for this device.
4418 * @dev: device struct
4419 * @attr: device attribute structure
4420 * @buf: buffer
4421 *
4422 * Return value:
4423 * number of bytes printed to buffer
4424 **/
4425static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4426{
4427 struct scsi_device *sdev = to_scsi_device(dev);
4428 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4429 struct ipr_resource_entry *res;
4430 unsigned long lock_flags = 0;
4431 ssize_t len = -ENXIO;
4432
4433 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4434 res = (struct ipr_resource_entry *)sdev->hostdata;
4435 if (res && ioa_cfg->sis64)
4436 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->dev_id);
4437 else if (res)
4438 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4439
4440 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4441 return len;
4442}
4443
4444static struct device_attribute ipr_device_id_attr = {
4445 .attr = {
4446 .name = "device_id",
4447 .mode = S_IRUGO,
4448 },
4449 .show = ipr_show_device_id
4450};
4451
75576bb9
WB		 4452/**
4453 * ipr_show_resource_type - Show the resource type for this device.
4454 * @dev: device struct
46d74563 4455 * @attr: device attribute structure
75576bb9
WB		 4456 * @buf: buffer
4457 *
4458 * Return value:
4459 * number of bytes printed to buffer
4460 **/
4461static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4462{
4463 struct scsi_device *sdev = to_scsi_device(dev);
4464 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4465 struct ipr_resource_entry *res;
4466 unsigned long lock_flags = 0;
4467 ssize_t len = -ENXIO;
4468
4469 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4470 res = (struct ipr_resource_entry *)sdev->hostdata;
4471
4472 if (res)
4473 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4474
4475 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4476 return len;
4477}
4478
4479static struct device_attribute ipr_resource_type_attr = {
4480 .attr = {
4481 .name = "resource_type",
4482 .mode = S_IRUGO,
4483 },
4484 .show = ipr_show_resource_type
4485};
4486
1da177e4
LT		 4487static struct device_attribute *ipr_dev_attrs[] = {
4488 &ipr_adapter_handle_attr,
3e7ebdfa 4489 &ipr_resource_path_attr,
46d74563 4490 &ipr_device_id_attr,
75576bb9 4491 &ipr_resource_type_attr,
1da177e4
LT		 4492 NULL,
4493};
4494
4495/**
4496 * ipr_biosparam - Return the HSC mapping
4497 * @sdev: scsi device struct
4498 * @block_device: block device pointer
4499 * @capacity: capacity of the device
4500 * @parm: Array containing returned HSC values.
4501 *
4502 * This function generates the HSC parms that fdisk uses.
4503 * We want to make sure we return something that places partitions
4504 * on 4k boundaries for best performance with the IOA.
4505 *
4506 * Return value:
4507 * 0 on success
4508 **/
4509static int ipr_biosparam(struct scsi_device *sdev,
4510 struct block_device *block_device,
4511 sector_t capacity, int *parm)
4512{
4513 int heads, sectors;
4514 sector_t cylinders;
4515
4516 heads = 128;
4517 sectors = 32;
4518
4519 cylinders = capacity;
4520 sector_div(cylinders, (128 * 32));
4521
4522 /* return result */
4523 parm[0] = heads;
4524 parm[1] = sectors;
4525 parm[2] = cylinders;
4526
4527 return 0;
4528}
4529
35a39691
BK		 4530/**
4531 * ipr_find_starget - Find target based on bus/target.
4532 * @starget: scsi target struct
4533 *
4534 * Return value:
4535 * resource entry pointer if found / NULL if not found
4536 **/
4537static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4538{
4539 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4540 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4541 struct ipr_resource_entry *res;
4542
4543 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 4544 if ((res->bus == starget->channel) &&
0ee1d714 4545 (res->target == starget->id)) {
35a39691
BK		 4546 return res;
4547 }
4548 }
4549
4550 return NULL;
4551}
4552
4553static struct ata_port_info sata_port_info;
4554
4555/**
4556 * ipr_target_alloc - Prepare for commands to a SCSI target
4557 * @starget: scsi target struct
4558 *
4559 * If the device is a SATA device, this function allocates an
4560 * ATA port with libata, else it does nothing.
4561 *
4562 * Return value:
4563 * 0 on success / non-0 on failure
4564 **/
4565static int ipr_target_alloc(struct scsi_target *starget)
4566{
4567 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4568 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4569 struct ipr_sata_port *sata_port;
4570 struct ata_port *ap;
4571 struct ipr_resource_entry *res;
4572 unsigned long lock_flags;
4573
4574 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4575 res = ipr_find_starget(starget);
4576 starget->hostdata = NULL;
4577
4578 if (res && ipr_is_gata(res)) {
4579 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4580 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4581 if (!sata_port)
4582 return -ENOMEM;
4583
4584 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4585 if (ap) {
4586 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4587 sata_port->ioa_cfg = ioa_cfg;
4588 sata_port->ap = ap;
4589 sata_port->res = res;
4590
4591 res->sata_port = sata_port;
4592 ap->private_data = sata_port;
4593 starget->hostdata = sata_port;
4594 } else {
4595 kfree(sata_port);
4596 return -ENOMEM;
4597 }
4598 }
4599 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4600
4601 return 0;
4602}
4603
4604/**
4605 * ipr_target_destroy - Destroy a SCSI target
4606 * @starget: scsi target struct
4607 *
4608 * If the device was a SATA device, this function frees the libata
4609 * ATA port, else it does nothing.
4610 *
4611 **/
4612static void ipr_target_destroy(struct scsi_target *starget)
4613{
4614 struct ipr_sata_port *sata_port = starget->hostdata;
3e7ebdfa
WB		 4615 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4616 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4617
4618 if (ioa_cfg->sis64) {
0ee1d714
BK		 4619 if (!ipr_find_starget(starget)) {
4620 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4621 clear_bit(starget->id, ioa_cfg->array_ids);
4622 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4623 clear_bit(starget->id, ioa_cfg->vset_ids);
4624 else if (starget->channel == 0)
4625 clear_bit(starget->id, ioa_cfg->target_ids);
4626 }
3e7ebdfa 4627 }
35a39691
BK		 4628
4629 if (sata_port) {
4630 starget->hostdata = NULL;
4631 ata_sas_port_destroy(sata_port->ap);
4632 kfree(sata_port);
4633 }
4634}
4635
4636/**
4637 * ipr_find_sdev - Find device based on bus/target/lun.
4638 * @sdev: scsi device struct
4639 *
4640 * Return value:
4641 * resource entry pointer if found / NULL if not found
4642 **/
4643static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4644{
4645 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4646 struct ipr_resource_entry *res;
4647
4648 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa
WB		 4649 if ((res->bus == sdev->channel) &&
4650 (res->target == sdev->id) &&
4651 (res->lun == sdev->lun))
35a39691
BK		 4652 return res;
4653 }
4654
4655 return NULL;
4656}
4657
1da177e4
LT		 4658/**
4659 * ipr_slave_destroy - Unconfigure a SCSI device
4660 * @sdev: scsi device struct
4661 *
4662 * Return value:
4663 * nothing
4664 **/
4665static void ipr_slave_destroy(struct scsi_device *sdev)
4666{
4667 struct ipr_resource_entry *res;
4668 struct ipr_ioa_cfg *ioa_cfg;
4669 unsigned long lock_flags = 0;
4670
4671 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4672
4673 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4674 res = (struct ipr_resource_entry *) sdev->hostdata;
4675 if (res) {
35a39691 4676 if (res->sata_port)
3e4ec344 4677 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
1da177e4
LT		 4678 sdev->hostdata = NULL;
4679 res->sdev = NULL;
35a39691 4680 res->sata_port = NULL;
1da177e4
LT		 4681 }
4682 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4683}
4684
4685/**
4686 * ipr_slave_configure - Configure a SCSI device
4687 * @sdev: scsi device struct
4688 *
4689 * This function configures the specified scsi device.
4690 *
4691 * Return value:
4692 * 0 on success
4693 **/
4694static int ipr_slave_configure(struct scsi_device *sdev)
4695{
4696 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4697 struct ipr_resource_entry *res;
dd406ef8 4698 struct ata_port *ap = NULL;
1da177e4 4699 unsigned long lock_flags = 0;
3e7ebdfa 4700 char buffer[IPR_MAX_RES_PATH_LENGTH];
1da177e4
LT		 4701
4702 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4703 res = sdev->hostdata;
4704 if (res) {
4705 if (ipr_is_af_dasd_device(res))
4706 sdev->type = TYPE_RAID;
0726ce26 4707 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
1da177e4 4708 sdev->scsi_level = 4;
0726ce26
BK		 4709 sdev->no_uld_attach = 1;
4710 }
1da177e4 4711 if (ipr_is_vset_device(res)) {
242f9dcb
JA		 4712 blk_queue_rq_timeout(sdev->request_queue,
4713 IPR_VSET_RW_TIMEOUT);
086fa5ff 4714 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
1da177e4 4715 }
dd406ef8
BK		 4716 if (ipr_is_gata(res) && res->sata_port)
4717 ap = res->sata_port->ap;
4718 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4719
4720 if (ap) {
35a39691 4721 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
dd406ef8
BK		 4722 ata_sas_slave_configure(sdev, ap);
4723 } else
35a39691 4724 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
3e7ebdfa
WB		 4725 if (ioa_cfg->sis64)
4726 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
b3b3b407
BK		 4727 ipr_format_res_path(ioa_cfg,
4728 res->res_path, buffer, sizeof(buffer)));
dd406ef8 4729 return 0;
1da177e4
LT		 4730 }
4731 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4732 return 0;
4733}
4734
35a39691
BK		 4735/**
4736 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4737 * @sdev: scsi device struct
4738 *
4739 * This function initializes an ATA port so that future commands
4740 * sent through queuecommand will work.
4741 *
4742 * Return value:
4743 * 0 on success
4744 **/
4745static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4746{
4747 struct ipr_sata_port *sata_port = NULL;
4748 int rc = -ENXIO;
4749
4750 ENTER;
4751 if (sdev->sdev_target)
4752 sata_port = sdev->sdev_target->hostdata;
b2024459 4753 if (sata_port) {
35a39691 4754 rc = ata_sas_port_init(sata_port->ap);
b2024459
DW		 4755 if (rc == 0)
4756 rc = ata_sas_sync_probe(sata_port->ap);
4757 }
4758
35a39691
BK		 4759 if (rc)
4760 ipr_slave_destroy(sdev);
4761
4762 LEAVE;
4763 return rc;
4764}
4765
1da177e4
LT		 4766/**
4767 * ipr_slave_alloc - Prepare for commands to a device.
4768 * @sdev: scsi device struct
4769 *
4770 * This function saves a pointer to the resource entry
4771 * in the scsi device struct if the device exists. We
4772 * can then use this pointer in ipr_queuecommand when
4773 * handling new commands.
4774 *
4775 * Return value:
692aebfc 4776 * 0 on success / -ENXIO if device does not exist
1da177e4
LT		 4777 **/
4778static int ipr_slave_alloc(struct scsi_device *sdev)
4779{
4780 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4781 struct ipr_resource_entry *res;
4782 unsigned long lock_flags;
692aebfc 4783 int rc = -ENXIO;
1da177e4
LT		 4784
4785 sdev->hostdata = NULL;
4786
4787 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4788
35a39691
BK		 4789 res = ipr_find_sdev(sdev);
4790 if (res) {
4791 res->sdev = sdev;
4792 res->add_to_ml = 0;
4793 res->in_erp = 0;
4794 sdev->hostdata = res;
4795 if (!ipr_is_naca_model(res))
4796 res->needs_sync_complete = 1;
4797 rc = 0;
4798 if (ipr_is_gata(res)) {
4799 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4800 return ipr_ata_slave_alloc(sdev);
1da177e4
LT		 4801 }
4802 }
4803
4804 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4805
692aebfc 4806 return rc;
1da177e4
LT		 4807}
4808
70233ac5 4809static int ipr_eh_host_reset(struct scsi_cmnd *cmd)
1da177e4
LT		 4810{
4811 struct ipr_ioa_cfg *ioa_cfg;
70233ac5 4812 unsigned long lock_flags = 0;
4813 int rc = SUCCESS;
1da177e4
LT		 4814
4815 ENTER;
70233ac5 4816 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
4817 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1da177e4 4818
96b04db9 4819 if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
70233ac5 4820 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
a92fa25c
KSS		 4821 dev_err(&ioa_cfg->pdev->dev,
4822 "Adapter being reset as a result of error recovery.\n");
1da177e4 4823
a92fa25c
KSS		 4824 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4825 ioa_cfg->sdt_state = GET_DUMP;
4826 }
1da177e4 4827
70233ac5 4828 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4829 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4830 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
df0ae249 4831
70233ac5 4832 /* If we got hit with a host reset while we were already resetting
4833 the adapter for some reason, and the reset failed. */
4834 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
4835 ipr_trace;
4836 rc = FAILED;
4837 }
df0ae249 4838
70233ac5 4839 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4840 LEAVE;
df0ae249
JG		 4841 return rc;
4842}
4843
c6513096
BK		 4844/**
4845 * ipr_device_reset - Reset the device
4846 * @ioa_cfg: ioa config struct
4847 * @res: resource entry struct
4848 *
4849 * This function issues a device reset to the affected device.
4850 * If the device is a SCSI device, a LUN reset will be sent
4851 * to the device first. If that does not work, a target reset
35a39691
BK		 4852 * will be sent. If the device is a SATA device, a PHY reset will
4853 * be sent.
c6513096
BK		 4854 *
4855 * Return value:
4856 * 0 on success / non-zero on failure
4857 **/
4858static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
4859 struct ipr_resource_entry *res)
4860{
4861 struct ipr_cmnd *ipr_cmd;
4862 struct ipr_ioarcb *ioarcb;
4863 struct ipr_cmd_pkt *cmd_pkt;
35a39691 4864 struct ipr_ioarcb_ata_regs *regs;
c6513096
BK		 4865 u32 ioasc;
4866
4867 ENTER;
4868 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4869 ioarcb = &ipr_cmd->ioarcb;
4870 cmd_pkt = &ioarcb->cmd_pkt;
a32c055f
WB		 4871
4872 if (ipr_cmd->ioa_cfg->sis64) {
4873 regs = &ipr_cmd->i.ata_ioadl.regs;
4874 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
4875 } else
4876 regs = &ioarcb->u.add_data.u.regs;
c6513096 4877
3e7ebdfa 4878 ioarcb->res_handle = res->res_handle;
c6513096
BK		 4879 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4880 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
35a39691
BK		 4881 if (ipr_is_gata(res)) {
4882 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
a32c055f 4883 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
35a39691
BK		 4884 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
4885 }
c6513096
BK		 4886
4887 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
96d21f00 4888 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
05a6538a 4889 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
96d21f00
WB		 4890 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
4891 if (ipr_cmd->ioa_cfg->sis64)
4892 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
4893 sizeof(struct ipr_ioasa_gata));
4894 else
4895 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
4896 sizeof(struct ipr_ioasa_gata));
4897 }
c6513096
BK		 4898
4899 LEAVE;
203fa3fe 4900 return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0;
c6513096
BK		 4901}
4902
35a39691
BK		 4903/**
4904 * ipr_sata_reset - Reset the SATA port
cc0680a5 4905 * @link: SATA link to reset
35a39691
BK		 4906 * @classes: class of the attached device
4907 *
cc0680a5 4908 * This function issues a SATA phy reset to the affected ATA link.
35a39691
BK		 4909 *
4910 * Return value:
4911 * 0 on success / non-zero on failure
4912 **/
cc0680a5 4913static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
120bda35 4914 unsigned long deadline)
35a39691 4915{
cc0680a5 4916 struct ipr_sata_port *sata_port = link->ap->private_data;
35a39691
BK		 4917 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4918 struct ipr_resource_entry *res;
4919 unsigned long lock_flags = 0;
4920 int rc = -ENXIO;
4921
4922 ENTER;
4923 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 4924 while (ioa_cfg->in_reset_reload) {
73d98ff0
BK		 4925 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4926 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4927 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4928 }
4929
35a39691
BK		 4930 res = sata_port->res;
4931 if (res) {
4932 rc = ipr_device_reset(ioa_cfg, res);
3e7ebdfa 4933 *classes = res->ata_class;
35a39691
BK		 4934 }
4935
4936 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4937 LEAVE;
4938 return rc;
4939}
4940
1da177e4
LT		 4941/**
4942 * ipr_eh_dev_reset - Reset the device
4943 * @scsi_cmd: scsi command struct
4944 *
4945 * This function issues a device reset to the affected device.
4946 * A LUN reset will be sent to the device first. If that does
4947 * not work, a target reset will be sent.
4948 *
4949 * Return value:
4950 * SUCCESS / FAILED
4951 **/
203fa3fe 4952static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 4953{
4954 struct ipr_cmnd *ipr_cmd;
4955 struct ipr_ioa_cfg *ioa_cfg;
4956 struct ipr_resource_entry *res;
35a39691
BK		 4957 struct ata_port *ap;
4958 int rc = 0;
05a6538a 4959 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 4960
4961 ENTER;
4962 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4963 res = scsi_cmd->device->hostdata;
4964
eeb88307 4965 if (!res)
1da177e4
LT		 4966 return FAILED;
4967
4968 /*
4969 * If we are currently going through reset/reload, return failed. This will force the
4970 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
4971 * reset to complete
4972 */
4973 if (ioa_cfg->in_reset_reload)
4974 return FAILED;
56d6aa33 4975 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
1da177e4
LT		 4976 return FAILED;
4977
05a6538a 4978 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 4979 spin_lock(&hrrq->_lock);
05a6538a 4980 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
4981 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
4982 if (ipr_cmd->scsi_cmd)
4983 ipr_cmd->done = ipr_scsi_eh_done;
4984 if (ipr_cmd->qc)
4985 ipr_cmd->done = ipr_sata_eh_done;
4986 if (ipr_cmd->qc &&
4987 !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
4988 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
4989 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
4990 }
7402ecef 4991 }
1da177e4 4992 }
56d6aa33 4993 spin_unlock(&hrrq->_lock);
1da177e4 4994 }
1da177e4 4995 res->resetting_device = 1;
fb3ed3cb 4996 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
35a39691
BK		 4997
4998 if (ipr_is_gata(res) && res->sata_port) {
4999 ap = res->sata_port->ap;
5000 spin_unlock_irq(scsi_cmd->device->host->host_lock);
a1efdaba 5001 ata_std_error_handler(ap);
35a39691 5002 spin_lock_irq(scsi_cmd->device->host->host_lock);
5af23d26 5003
05a6538a 5004 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5005 spin_lock(&hrrq->_lock);
05a6538a 5006 list_for_each_entry(ipr_cmd,
5007 &hrrq->hrrq_pending_q, queue) {
5008 if (ipr_cmd->ioarcb.res_handle ==
5009 res->res_handle) {
5010 rc = -EIO;
5011 break;
5012 }
5af23d26 5013 }
56d6aa33 5014 spin_unlock(&hrrq->_lock);
5af23d26 5015 }
35a39691
BK		 5016 } else
5017 rc = ipr_device_reset(ioa_cfg, res);
1da177e4 5018 res->resetting_device = 0;
0b1f8d44 5019 res->reset_occurred = 1;
1da177e4 5020
1da177e4 5021 LEAVE;
203fa3fe 5022 return rc ? FAILED : SUCCESS;
1da177e4
LT		 5023}
5024
203fa3fe 5025static int ipr_eh_dev_reset(struct scsi_cmnd *cmd)
94d0e7b8
JG		 5026{
5027 int rc;
5028
5029 spin_lock_irq(cmd->device->host->host_lock);
5030 rc = __ipr_eh_dev_reset(cmd);
5031 spin_unlock_irq(cmd->device->host->host_lock);
5032
5033 return rc;
5034}
5035
1da177e4
LT		 5036/**
5037 * ipr_bus_reset_done - Op done function for bus reset.
5038 * @ipr_cmd: ipr command struct
5039 *
5040 * This function is the op done function for a bus reset
5041 *
5042 * Return value:
5043 * none
5044 **/
5045static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
5046{
5047 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5048 struct ipr_resource_entry *res;
5049
5050 ENTER;
3e7ebdfa
WB		 5051 if (!ioa_cfg->sis64)
5052 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5053 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
5054 scsi_report_bus_reset(ioa_cfg->host, res->bus);
5055 break;
5056 }
1da177e4 5057 }
1da177e4
LT		 5058
5059 /*
5060 * If abort has not completed, indicate the reset has, else call the
5061 * abort's done function to wake the sleeping eh thread
5062 */
5063 if (ipr_cmd->sibling->sibling)
5064 ipr_cmd->sibling->sibling = NULL;
5065 else
5066 ipr_cmd->sibling->done(ipr_cmd->sibling);
5067
05a6538a 5068 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 5069 LEAVE;
5070}
5071
5072/**
5073 * ipr_abort_timeout - An abort task has timed out
5074 * @ipr_cmd: ipr command struct
5075 *
5076 * This function handles when an abort task times out. If this
5077 * happens we issue a bus reset since we have resources tied
5078 * up that must be freed before returning to the midlayer.
5079 *
5080 * Return value:
5081 * none
5082 **/
5083static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
5084{
5085 struct ipr_cmnd *reset_cmd;
5086 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5087 struct ipr_cmd_pkt *cmd_pkt;
5088 unsigned long lock_flags = 0;
5089
5090 ENTER;
5091 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5092 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
5093 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5094 return;
5095 }
5096
fb3ed3cb 5097 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
1da177e4
LT		 5098 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5099 ipr_cmd->sibling = reset_cmd;
5100 reset_cmd->sibling = ipr_cmd;
5101 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
5102 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
5103 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5104 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5105 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
5106
5107 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5108 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5109 LEAVE;
5110}
5111
5112/**
5113 * ipr_cancel_op - Cancel specified op
5114 * @scsi_cmd: scsi command struct
5115 *
5116 * This function cancels specified op.
5117 *
5118 * Return value:
5119 * SUCCESS / FAILED
5120 **/
203fa3fe 5121static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 5122{
5123 struct ipr_cmnd *ipr_cmd;
5124 struct ipr_ioa_cfg *ioa_cfg;
5125 struct ipr_resource_entry *res;
5126 struct ipr_cmd_pkt *cmd_pkt;
a92fa25c 5127 u32 ioasc, int_reg;
1da177e4 5128 int op_found = 0;
05a6538a 5129 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 5130
5131 ENTER;
5132 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5133 res = scsi_cmd->device->hostdata;
5134
8fa728a2
JG		 5135 /* If we are currently going through reset/reload, return failed.
5136 * This will force the mid-layer to call ipr_eh_host_reset,
5137 * which will then go to sleep and wait for the reset to complete
5138 */
56d6aa33 5139 if (ioa_cfg->in_reset_reload ||
5140 ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
8fa728a2 5141 return FAILED;
a92fa25c
KSS		 5142 if (!res)
5143 return FAILED;
5144
5145 /*
5146 * If we are aborting a timed out op, chances are that the timeout was caused
5147 * by a still not detected EEH error. In such cases, reading a register will
5148 * trigger the EEH recovery infrastructure.
5149 */
5150 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5151
5152 if (!ipr_is_gscsi(res))
1da177e4
LT		 5153 return FAILED;
5154
05a6538a 5155 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5156 spin_lock(&hrrq->_lock);
05a6538a 5157 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5158 if (ipr_cmd->scsi_cmd == scsi_cmd) {
5159 ipr_cmd->done = ipr_scsi_eh_done;
5160 op_found = 1;
5161 break;
5162 }
1da177e4 5163 }
56d6aa33 5164 spin_unlock(&hrrq->_lock);
1da177e4
LT		 5165 }
5166
5167 if (!op_found)
5168 return SUCCESS;
5169
5170 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3e7ebdfa 5171 ipr_cmd->ioarcb.res_handle = res->res_handle;
1da177e4
LT		 5172 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5173 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5174 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5175 ipr_cmd->u.sdev = scsi_cmd->device;
5176
fb3ed3cb
BK		 5177 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
5178 scsi_cmd->cmnd[0]);
1da177e4 5179 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
96d21f00 5180 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5181
5182 /*
5183 * If the abort task timed out and we sent a bus reset, we will get
5184 * one the following responses to the abort
5185 */
5186 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
5187 ioasc = 0;
5188 ipr_trace;
5189 }
5190
c4ee22a3 5191 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
ee0a90fa
BK		 5192 if (!ipr_is_naca_model(res))
5193 res->needs_sync_complete = 1;
1da177e4
LT		 5194
5195 LEAVE;
203fa3fe 5196 return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS;
1da177e4
LT		 5197}
5198
5199/**
5200 * ipr_eh_abort - Abort a single op
5201 * @scsi_cmd: scsi command struct
5202 *
5203 * Return value:
5204 * SUCCESS / FAILED
5205 **/
203fa3fe 5206static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd)
1da177e4 5207{
8fa728a2
JG		 5208 unsigned long flags;
5209 int rc;
1da177e4
LT		 5210
5211 ENTER;
1da177e4 5212
8fa728a2
JG		 5213 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
5214 rc = ipr_cancel_op(scsi_cmd);
5215 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
1da177e4
LT		 5216
5217 LEAVE;
8fa728a2 5218 return rc;
1da177e4
LT		 5219}
5220
5221/**
5222 * ipr_handle_other_interrupt - Handle "other" interrupts
5223 * @ioa_cfg: ioa config struct
634651fa 5224 * @int_reg: interrupt register
1da177e4
LT		 5225 *
5226 * Return value:
5227 * IRQ_NONE / IRQ_HANDLED
5228 **/
634651fa 5229static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
630ad831 5230 u32 int_reg)
1da177e4
LT		 5231{
5232 irqreturn_t rc = IRQ_HANDLED;
7dacb64f 5233 u32 int_mask_reg;
56d6aa33 5234
7dacb64f
WB		 5235 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5236 int_reg &= ~int_mask_reg;
5237
5238 /* If an interrupt on the adapter did not occur, ignore it.
5239 * Or in the case of SIS 64, check for a stage change interrupt.
5240 */
5241 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5242 if (ioa_cfg->sis64) {
5243 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5244 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5245 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5246
5247 /* clear stage change */
5248 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5249 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5250 list_del(&ioa_cfg->reset_cmd->queue);
5251 del_timer(&ioa_cfg->reset_cmd->timer);
5252 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5253 return IRQ_HANDLED;
5254 }
5255 }
5256
5257 return IRQ_NONE;
5258 }
1da177e4
LT		 5259
5260 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5261 /* Mask the interrupt */
5262 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
5263
5264 /* Clear the interrupt */
5265 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
5266 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5267
5268 list_del(&ioa_cfg->reset_cmd->queue);
5269 del_timer(&ioa_cfg->reset_cmd->timer);
5270 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
7dacb64f 5271 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
7dd21308
BK		 5272 if (ioa_cfg->clear_isr) {
5273 if (ipr_debug && printk_ratelimit())
5274 dev_err(&ioa_cfg->pdev->dev,
5275 "Spurious interrupt detected. 0x%08X\n", int_reg);
5276 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5277 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5278 return IRQ_NONE;
5279 }
1da177e4
LT		 5280 } else {
5281 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5282 ioa_cfg->ioa_unit_checked = 1;
05a6538a 5283 else if (int_reg & IPR_PCII_NO_HOST_RRQ)
5284 dev_err(&ioa_cfg->pdev->dev,
5285 "No Host RRQ. 0x%08X\n", int_reg);
1da177e4
LT		 5286 else
5287 dev_err(&ioa_cfg->pdev->dev,
5288 "Permanent IOA failure. 0x%08X\n", int_reg);
5289
5290 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5291 ioa_cfg->sdt_state = GET_DUMP;
5292
5293 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5294 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5295 }
56d6aa33 5296
1da177e4
LT		 5297 return rc;
5298}
5299
3feeb89d
WB		 5300/**
5301 * ipr_isr_eh - Interrupt service routine error handler
5302 * @ioa_cfg: ioa config struct
5303 * @msg: message to log
5304 *
5305 * Return value:
5306 * none
5307 **/
05a6538a 5308static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg, u16 number)
3feeb89d
WB		 5309{
5310 ioa_cfg->errors_logged++;
05a6538a 5311 dev_err(&ioa_cfg->pdev->dev, "%s %d\n", msg, number);
3feeb89d
WB		 5312
5313 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5314 ioa_cfg->sdt_state = GET_DUMP;
5315
5316 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5317}
5318
b53d124a 5319static int ipr_process_hrrq(struct ipr_hrr_queue *hrr_queue, int budget,
05a6538a 5320 struct list_head *doneq)
5321{
5322 u32 ioasc;
5323 u16 cmd_index;
5324 struct ipr_cmnd *ipr_cmd;
5325 struct ipr_ioa_cfg *ioa_cfg = hrr_queue->ioa_cfg;
5326 int num_hrrq = 0;
5327
5328 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5329 if (!hrr_queue->allow_interrupts)
05a6538a 5330 return 0;
5331
5332 while ((be32_to_cpu(*hrr_queue->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5333 hrr_queue->toggle_bit) {
5334
5335 cmd_index = (be32_to_cpu(*hrr_queue->hrrq_curr) &
5336 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >>
5337 IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5338
5339 if (unlikely(cmd_index > hrr_queue->max_cmd_id ||
5340 cmd_index < hrr_queue->min_cmd_id)) {
5341 ipr_isr_eh(ioa_cfg,
5342 "Invalid response handle from IOA: ",
5343 cmd_index);
5344 break;
5345 }
5346
5347 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5348 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5349
5350 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5351
5352 list_move_tail(&ipr_cmd->queue, doneq);
5353
5354 if (hrr_queue->hrrq_curr < hrr_queue->hrrq_end) {
5355 hrr_queue->hrrq_curr++;
5356 } else {
5357 hrr_queue->hrrq_curr = hrr_queue->hrrq_start;
5358 hrr_queue->toggle_bit ^= 1u;
5359 }
5360 num_hrrq++;
b53d124a 5361 if (budget > 0 && num_hrrq >= budget)
5362 break;
05a6538a 5363 }
b53d124a 5364
05a6538a 5365 return num_hrrq;
5366}
b53d124a 5367
5368static int ipr_iopoll(struct blk_iopoll *iop, int budget)
5369{
5370 struct ipr_ioa_cfg *ioa_cfg;
5371 struct ipr_hrr_queue *hrrq;
5372 struct ipr_cmnd *ipr_cmd, *temp;
5373 unsigned long hrrq_flags;
5374 int completed_ops;
5375 LIST_HEAD(doneq);
5376
5377 hrrq = container_of(iop, struct ipr_hrr_queue, iopoll);
5378 ioa_cfg = hrrq->ioa_cfg;
5379
5380 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5381 completed_ops = ipr_process_hrrq(hrrq, budget, &doneq);
5382
5383 if (completed_ops < budget)
5384 blk_iopoll_complete(iop);
5385 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5386
5387 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5388 list_del(&ipr_cmd->queue);
5389 del_timer(&ipr_cmd->timer);
5390 ipr_cmd->fast_done(ipr_cmd);
5391 }
5392
5393 return completed_ops;
5394}
5395
1da177e4
LT		 5396/**
5397 * ipr_isr - Interrupt service routine
5398 * @irq: irq number
5399 * @devp: pointer to ioa config struct
1da177e4
LT		 5400 *
5401 * Return value:
5402 * IRQ_NONE / IRQ_HANDLED
5403 **/
7d12e780 5404static irqreturn_t ipr_isr(int irq, void *devp)
1da177e4 5405{
05a6538a 5406 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5407 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
56d6aa33 5408 unsigned long hrrq_flags = 0;
7dacb64f 5409 u32 int_reg = 0;
3feeb89d 5410 int num_hrrq = 0;
7dacb64f 5411 int irq_none = 0;
172cd6e1 5412 struct ipr_cmnd *ipr_cmd, *temp;
1da177e4 5413 irqreturn_t rc = IRQ_NONE;
172cd6e1 5414 LIST_HEAD(doneq);
1da177e4 5415
56d6aa33 5416 spin_lock_irqsave(hrrq->lock, hrrq_flags);
1da177e4 5417 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5418 if (!hrrq->allow_interrupts) {
5419 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4
LT		 5420 return IRQ_NONE;
5421 }
5422
1da177e4 5423 while (1) {
b53d124a 5424 if (ipr_process_hrrq(hrrq, -1, &doneq)) {
5425 rc = IRQ_HANDLED;
1da177e4 5426
b53d124a 5427 if (!ioa_cfg->clear_isr)
5428 break;
7dd21308 5429
1da177e4 5430 /* Clear the PCI interrupt */
a5442ba4 5431 num_hrrq = 0;
3feeb89d 5432 do {
b53d124a 5433 writel(IPR_PCII_HRRQ_UPDATED,
5434 ioa_cfg->regs.clr_interrupt_reg32);
7dacb64f 5435 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
3feeb89d 5436 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
b53d124a 5437 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
3feeb89d 5438
7dacb64f
WB		 5439 } else if (rc == IRQ_NONE && irq_none == 0) {
5440 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5441 irq_none++;
a5442ba4
WB		 5442 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5443 int_reg & IPR_PCII_HRRQ_UPDATED) {
b53d124a 5444 ipr_isr_eh(ioa_cfg,
5445 "Error clearing HRRQ: ", num_hrrq);
172cd6e1 5446 rc = IRQ_HANDLED;
b53d124a 5447 break;
1da177e4
LT		 5448 } else
5449 break;
5450 }
5451
5452 if (unlikely(rc == IRQ_NONE))
634651fa 5453 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
1da177e4 5454
56d6aa33 5455 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
172cd6e1
BK		 5456 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5457 list_del(&ipr_cmd->queue);
5458 del_timer(&ipr_cmd->timer);
5459 ipr_cmd->fast_done(ipr_cmd);
5460 }
05a6538a 5461 return rc;
5462}
5463
5464/**
5465 * ipr_isr_mhrrq - Interrupt service routine
5466 * @irq: irq number
5467 * @devp: pointer to ioa config struct
5468 *
5469 * Return value:
5470 * IRQ_NONE / IRQ_HANDLED
5471 **/
5472static irqreturn_t ipr_isr_mhrrq(int irq, void *devp)
5473{
5474 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
b53d124a 5475 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
56d6aa33 5476 unsigned long hrrq_flags = 0;
05a6538a 5477 struct ipr_cmnd *ipr_cmd, *temp;
5478 irqreturn_t rc = IRQ_NONE;
5479 LIST_HEAD(doneq);
172cd6e1 5480
56d6aa33 5481 spin_lock_irqsave(hrrq->lock, hrrq_flags);
05a6538a 5482
5483 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5484 if (!hrrq->allow_interrupts) {
5485 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 5486 return IRQ_NONE;
5487 }
5488
b53d124a 5489 if (blk_iopoll_enabled && ioa_cfg->iopoll_weight &&
5490 ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
5491 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5492 hrrq->toggle_bit) {
5493 if (!blk_iopoll_sched_prep(&hrrq->iopoll))
5494 blk_iopoll_sched(&hrrq->iopoll);
5495 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5496 return IRQ_HANDLED;
5497 }
5498 } else {
5499 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5500 hrrq->toggle_bit)
05a6538a 5501
b53d124a 5502 if (ipr_process_hrrq(hrrq, -1, &doneq))
5503 rc = IRQ_HANDLED;
5504 }
05a6538a 5505
56d6aa33 5506 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 5507
5508 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5509 list_del(&ipr_cmd->queue);
5510 del_timer(&ipr_cmd->timer);
5511 ipr_cmd->fast_done(ipr_cmd);
5512 }
1da177e4
LT		 5513 return rc;
5514}
5515
a32c055f
WB		 5516/**
5517 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5518 * @ioa_cfg: ioa config struct
5519 * @ipr_cmd: ipr command struct
5520 *
5521 * Return value:
5522 * 0 on success / -1 on failure
5523 **/
5524static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5525 struct ipr_cmnd *ipr_cmd)
5526{
5527 int i, nseg;
5528 struct scatterlist *sg;
5529 u32 length;
5530 u32 ioadl_flags = 0;
5531 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5532 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5533 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5534
5535 length = scsi_bufflen(scsi_cmd);
5536 if (!length)
5537 return 0;
5538
5539 nseg = scsi_dma_map(scsi_cmd);
5540 if (nseg < 0) {
51f52a47
AB		 5541 if (printk_ratelimit())
5542 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
a32c055f
WB		 5543 return -1;
5544 }
5545
5546 ipr_cmd->dma_use_sg = nseg;
5547
438b0331 5548 ioarcb->data_transfer_length = cpu_to_be32(length);
b8803b1c
WB		 5549 ioarcb->ioadl_len =
5550 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
438b0331 5551
a32c055f
WB		 5552 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5553 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5554 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5555 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5556 ioadl_flags = IPR_IOADL_FLAGS_READ;
5557
5558 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5559 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5560 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5561 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5562 }
5563
5564 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5565 return 0;
5566}
5567
1da177e4
LT		 5568/**
5569 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5570 * @ioa_cfg: ioa config struct
5571 * @ipr_cmd: ipr command struct
5572 *
5573 * Return value:
5574 * 0 on success / -1 on failure
5575 **/
5576static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5577 struct ipr_cmnd *ipr_cmd)
5578{
63015bc9
FT		 5579 int i, nseg;
5580 struct scatterlist *sg;
1da177e4
LT		 5581 u32 length;
5582 u32 ioadl_flags = 0;
5583 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5584 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 5585 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4 5586
63015bc9
FT		 5587 length = scsi_bufflen(scsi_cmd);
5588 if (!length)
1da177e4
LT		 5589 return 0;
5590
63015bc9
FT		 5591 nseg = scsi_dma_map(scsi_cmd);
5592 if (nseg < 0) {
5593 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5594 return -1;
5595 }
51b1c7e1 5596
63015bc9
FT		 5597 ipr_cmd->dma_use_sg = nseg;
5598
5599 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5600 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5601 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 5602 ioarcb->data_transfer_length = cpu_to_be32(length);
5603 ioarcb->ioadl_len =
63015bc9
FT		 5604 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5605 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5606 ioadl_flags = IPR_IOADL_FLAGS_READ;
5607 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5608 ioarcb->read_ioadl_len =
5609 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5610 }
1da177e4 5611
a32c055f
WB		 5612 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5613 ioadl = ioarcb->u.add_data.u.ioadl;
5614 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5615 offsetof(struct ipr_ioarcb, u.add_data));
63015bc9
FT		 5616 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5617 }
1da177e4 5618
63015bc9
FT		 5619 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5620 ioadl[i].flags_and_data_len =
5621 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5622 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
1da177e4
LT		 5623 }
5624
63015bc9
FT		 5625 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5626 return 0;
1da177e4
LT		 5627}
5628
5629/**
5630 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
5631 * @scsi_cmd: scsi command struct
5632 *
5633 * Return value:
5634 * task attributes
5635 **/
5636static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
5637{
5638 u8 tag[2];
5639 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
5640
5641 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
5642 switch (tag[0]) {
5643 case MSG_SIMPLE_TAG:
5644 rc = IPR_FLAGS_LO_SIMPLE_TASK;
5645 break;
5646 case MSG_HEAD_TAG:
5647 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
5648 break;
5649 case MSG_ORDERED_TAG:
5650 rc = IPR_FLAGS_LO_ORDERED_TASK;
5651 break;
5652 };
5653 }
5654
5655 return rc;
5656}
5657
5658/**
5659 * ipr_erp_done - Process completion of ERP for a device
5660 * @ipr_cmd: ipr command struct
5661 *
5662 * This function copies the sense buffer into the scsi_cmd
5663 * struct and pushes the scsi_done function.
5664 *
5665 * Return value:
5666 * nothing
5667 **/
5668static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5669{
5670 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5671 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 5672 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5673
5674 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5675 scsi_cmd->result |= (DID_ERROR << 16);
fb3ed3cb
BK		 5676 scmd_printk(KERN_ERR, scsi_cmd,
5677 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
1da177e4
LT		 5678 } else {
5679 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5680 SCSI_SENSE_BUFFERSIZE);
5681 }
5682
5683 if (res) {
ee0a90fa
BK		 5684 if (!ipr_is_naca_model(res))
5685 res->needs_sync_complete = 1;
1da177e4
LT		 5686 res->in_erp = 0;
5687 }
63015bc9 5688 scsi_dma_unmap(ipr_cmd->scsi_cmd);
05a6538a 5689 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 5690 scsi_cmd->scsi_done(scsi_cmd);
5691}
5692
5693/**
5694 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5695 * @ipr_cmd: ipr command struct
5696 *
5697 * Return value:
5698 * none
5699 **/
5700static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5701{
51b1c7e1 5702 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00 5703 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
a32c055f 5704 dma_addr_t dma_addr = ipr_cmd->dma_addr;
1da177e4
LT		 5705
5706 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
a32c055f 5707 ioarcb->data_transfer_length = 0;
1da177e4 5708 ioarcb->read_data_transfer_length = 0;
a32c055f 5709 ioarcb->ioadl_len = 0;
1da177e4 5710 ioarcb->read_ioadl_len = 0;
96d21f00
WB		 5711 ioasa->hdr.ioasc = 0;
5712 ioasa->hdr.residual_data_len = 0;
a32c055f
WB		 5713
5714 if (ipr_cmd->ioa_cfg->sis64)
5715 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5716 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5717 else {
5718 ioarcb->write_ioadl_addr =
5719 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5720 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5721 }
1da177e4
LT		 5722}
5723
5724/**
5725 * ipr_erp_request_sense - Send request sense to a device
5726 * @ipr_cmd: ipr command struct
5727 *
5728 * This function sends a request sense to a device as a result
5729 * of a check condition.
5730 *
5731 * Return value:
5732 * nothing
5733 **/
5734static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5735{
5736 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
96d21f00 5737 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5738
5739 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5740 ipr_erp_done(ipr_cmd);
5741 return;
5742 }
5743
5744 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5745
5746 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5747 cmd_pkt->cdb[0] = REQUEST_SENSE;
5748 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5749 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5750 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5751 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5752
a32c055f
WB		 5753 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5754 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 5755
5756 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5757 IPR_REQUEST_SENSE_TIMEOUT * 2);
5758}
5759
5760/**
5761 * ipr_erp_cancel_all - Send cancel all to a device
5762 * @ipr_cmd: ipr command struct
5763 *
5764 * This function sends a cancel all to a device to clear the
5765 * queue. If we are running TCQ on the device, QERR is set to 1,
5766 * which means all outstanding ops have been dropped on the floor.
5767 * Cancel all will return them to us.
5768 *
5769 * Return value:
5770 * nothing
5771 **/
5772static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5773{
5774 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5775 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5776 struct ipr_cmd_pkt *cmd_pkt;
5777
5778 res->in_erp = 1;
5779
5780 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5781
5782 if (!scsi_get_tag_type(scsi_cmd->device)) {
5783 ipr_erp_request_sense(ipr_cmd);
5784 return;
5785 }
5786
5787 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5788 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5789 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5790
5791 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5792 IPR_CANCEL_ALL_TIMEOUT);
5793}
5794
5795/**
5796 * ipr_dump_ioasa - Dump contents of IOASA
5797 * @ioa_cfg: ioa config struct
5798 * @ipr_cmd: ipr command struct
fe964d0a 5799 * @res: resource entry struct
1da177e4
LT		 5800 *
5801 * This function is invoked by the interrupt handler when ops
5802 * fail. It will log the IOASA if appropriate. Only called
5803 * for GPDD ops.
5804 *
5805 * Return value:
5806 * none
5807 **/
5808static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
fe964d0a 5809 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
1da177e4
LT		 5810{
5811 int i;
5812 u16 data_len;
b0692dd4 5813 u32 ioasc, fd_ioasc;
96d21f00 5814 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
1da177e4
LT		 5815 __be32 *ioasa_data = (__be32 *)ioasa;
5816 int error_index;
5817
96d21f00
WB		 5818 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5819 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 5820
5821 if (0 == ioasc)
5822 return;
5823
5824 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
5825 return;
5826
b0692dd4
BK		 5827 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
5828 error_index = ipr_get_error(fd_ioasc);
5829 else
5830 error_index = ipr_get_error(ioasc);
1da177e4
LT		 5831
5832 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
5833 /* Don't log an error if the IOA already logged one */
96d21f00 5834 if (ioasa->hdr.ilid != 0)
1da177e4
LT		 5835 return;
5836
cc9bd5d4
BK		 5837 if (!ipr_is_gscsi(res))
5838 return;
5839
1da177e4
LT		 5840 if (ipr_error_table[error_index].log_ioasa == 0)
5841 return;
5842 }
5843
fe964d0a 5844 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
1da177e4 5845
96d21f00
WB		 5846 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
5847 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
5848 data_len = sizeof(struct ipr_ioasa64);
5849 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
1da177e4 5850 data_len = sizeof(struct ipr_ioasa);
1da177e4
LT		 5851
5852 ipr_err("IOASA Dump:\n");
5853
5854 for (i = 0; i < data_len / 4; i += 4) {
5855 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
5856 be32_to_cpu(ioasa_data[i]),
5857 be32_to_cpu(ioasa_data[i+1]),
5858 be32_to_cpu(ioasa_data[i+2]),
5859 be32_to_cpu(ioasa_data[i+3]));
5860 }
5861}
5862
5863/**
5864 * ipr_gen_sense - Generate SCSI sense data from an IOASA
5865 * @ioasa: IOASA
5866 * @sense_buf: sense data buffer
5867 *
5868 * Return value:
5869 * none
5870 **/
5871static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
5872{
5873 u32 failing_lba;
5874 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
5875 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
96d21f00
WB		 5876 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5877 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
1da177e4
LT		 5878
5879 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
5880
5881 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
5882 return;
5883
5884 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
5885
5886 if (ipr_is_vset_device(res) &&
5887 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
5888 ioasa->u.vset.failing_lba_hi != 0) {
5889 sense_buf[0] = 0x72;
5890 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
5891 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
5892 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
5893
5894 sense_buf[7] = 12;
5895 sense_buf[8] = 0;
5896 sense_buf[9] = 0x0A;
5897 sense_buf[10] = 0x80;
5898
5899 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
5900
5901 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
5902 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
5903 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
5904 sense_buf[15] = failing_lba & 0x000000ff;
5905
5906 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5907
5908 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
5909 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
5910 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
5911 sense_buf[19] = failing_lba & 0x000000ff;
5912 } else {
5913 sense_buf[0] = 0x70;
5914 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
5915 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
5916 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
5917
5918 /* Illegal request */
5919 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
96d21f00 5920 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
1da177e4
LT		 5921 sense_buf[7] = 10; /* additional length */
5922
5923 /* IOARCB was in error */
5924 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
5925 sense_buf[15] = 0xC0;
5926 else /* Parameter data was invalid */
5927 sense_buf[15] = 0x80;
5928
5929 sense_buf[16] =
5930 ((IPR_FIELD_POINTER_MASK &
96d21f00 5931 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
1da177e4
LT		 5932 sense_buf[17] =
5933 (IPR_FIELD_POINTER_MASK &
96d21f00 5934 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
1da177e4
LT		 5935 } else {
5936 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
5937 if (ipr_is_vset_device(res))
5938 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5939 else
5940 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
5941
5942 sense_buf[0] |= 0x80; /* Or in the Valid bit */
5943 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
5944 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
5945 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
5946 sense_buf[6] = failing_lba & 0x000000ff;
5947 }
5948
5949 sense_buf[7] = 6; /* additional length */
5950 }
5951 }
5952}
5953
ee0a90fa
BK		 5954/**
5955 * ipr_get_autosense - Copy autosense data to sense buffer
5956 * @ipr_cmd: ipr command struct
5957 *
5958 * This function copies the autosense buffer to the buffer
5959 * in the scsi_cmd, if there is autosense available.
5960 *
5961 * Return value:
5962 * 1 if autosense was available / 0 if not
5963 **/
5964static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
5965{
96d21f00
WB		 5966 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5967 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
ee0a90fa 5968
96d21f00 5969 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
ee0a90fa
BK		 5970 return 0;
5971
96d21f00
WB		 5972 if (ipr_cmd->ioa_cfg->sis64)
5973 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
5974 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
5975 SCSI_SENSE_BUFFERSIZE));
5976 else
5977 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
5978 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
5979 SCSI_SENSE_BUFFERSIZE));
ee0a90fa
BK		 5980 return 1;
5981}
5982
1da177e4
LT		 5983/**
5984 * ipr_erp_start - Process an error response for a SCSI op
5985 * @ioa_cfg: ioa config struct
5986 * @ipr_cmd: ipr command struct
5987 *
5988 * This function determines whether or not to initiate ERP
5989 * on the affected device.
5990 *
5991 * Return value:
5992 * nothing
5993 **/
5994static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
5995 struct ipr_cmnd *ipr_cmd)
5996{
5997 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5998 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 5999 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
8a048994 6000 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 6001
6002 if (!res) {
6003 ipr_scsi_eh_done(ipr_cmd);
6004 return;
6005 }
6006
8a048994 6007 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
1da177e4
LT		 6008 ipr_gen_sense(ipr_cmd);
6009
cc9bd5d4
BK		 6010 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6011
8a048994 6012 switch (masked_ioasc) {
1da177e4 6013 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
ee0a90fa
BK		 6014 if (ipr_is_naca_model(res))
6015 scsi_cmd->result |= (DID_ABORT << 16);
6016 else
6017 scsi_cmd->result |= (DID_IMM_RETRY << 16);
1da177e4
LT		 6018 break;
6019 case IPR_IOASC_IR_RESOURCE_HANDLE:
b0df54bb 6020 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
1da177e4
LT		 6021 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6022 break;
6023 case IPR_IOASC_HW_SEL_TIMEOUT:
6024 scsi_cmd->result |= (DID_NO_CONNECT << 16);
ee0a90fa
BK		 6025 if (!ipr_is_naca_model(res))
6026 res->needs_sync_complete = 1;
1da177e4
LT		 6027 break;
6028 case IPR_IOASC_SYNC_REQUIRED:
6029 if (!res->in_erp)
6030 res->needs_sync_complete = 1;
6031 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6032 break;
6033 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
b0df54bb 6034 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
1da177e4
LT		 6035 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
6036 break;
6037 case IPR_IOASC_BUS_WAS_RESET:
6038 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
6039 /*
6040 * Report the bus reset and ask for a retry. The device
6041 * will give CC/UA the next command.
6042 */
6043 if (!res->resetting_device)
6044 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
6045 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa
BK		 6046 if (!ipr_is_naca_model(res))
6047 res->needs_sync_complete = 1;
1da177e4
LT		 6048 break;
6049 case IPR_IOASC_HW_DEV_BUS_STATUS:
6050 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
6051 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
ee0a90fa
BK		 6052 if (!ipr_get_autosense(ipr_cmd)) {
6053 if (!ipr_is_naca_model(res)) {
6054 ipr_erp_cancel_all(ipr_cmd);
6055 return;
6056 }
6057 }
1da177e4 6058 }
ee0a90fa
BK		 6059 if (!ipr_is_naca_model(res))
6060 res->needs_sync_complete = 1;
1da177e4
LT		 6061 break;
6062 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
6063 break;
6064 default:
5b7304fb
BK		 6065 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6066 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa 6067 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
1da177e4
LT		 6068 res->needs_sync_complete = 1;
6069 break;
6070 }
6071
63015bc9 6072 scsi_dma_unmap(ipr_cmd->scsi_cmd);
05a6538a 6073 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 6074 scsi_cmd->scsi_done(scsi_cmd);
6075}
6076
6077/**
6078 * ipr_scsi_done - mid-layer done function
6079 * @ipr_cmd: ipr command struct
6080 *
6081 * This function is invoked by the interrupt handler for
6082 * ops generated by the SCSI mid-layer
6083 *
6084 * Return value:
6085 * none
6086 **/
6087static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
6088{
6089 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6090 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
96d21f00 6091 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
05a6538a 6092 unsigned long hrrq_flags;
1da177e4 6093
96d21f00 6094 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
1da177e4
LT		 6095
6096 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
172cd6e1
BK		 6097 scsi_dma_unmap(scsi_cmd);
6098
56d6aa33 6099 spin_lock_irqsave(ipr_cmd->hrrq->lock, hrrq_flags);
05a6538a 6100 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4 6101 scsi_cmd->scsi_done(scsi_cmd);
56d6aa33 6102 spin_unlock_irqrestore(ipr_cmd->hrrq->lock, hrrq_flags);
172cd6e1 6103 } else {
56d6aa33 6104 spin_lock_irqsave(ipr_cmd->hrrq->lock, hrrq_flags);
1da177e4 6105 ipr_erp_start(ioa_cfg, ipr_cmd);
56d6aa33 6106 spin_unlock_irqrestore(ipr_cmd->hrrq->lock, hrrq_flags);
172cd6e1 6107 }
1da177e4
LT		 6108}
6109
1da177e4
LT		 6110/**
6111 * ipr_queuecommand - Queue a mid-layer request
00bfef2c 6112 * @shost: scsi host struct
1da177e4 6113 * @scsi_cmd: scsi command struct
1da177e4
LT		 6114 *
6115 * This function queues a request generated by the mid-layer.
6116 *
6117 * Return value:
6118 * 0 on success
6119 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
6120 * SCSI_MLQUEUE_HOST_BUSY if host is busy
6121 **/
00bfef2c
BK		 6122static int ipr_queuecommand(struct Scsi_Host *shost,
6123 struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 6124{
6125 struct ipr_ioa_cfg *ioa_cfg;
6126 struct ipr_resource_entry *res;
6127 struct ipr_ioarcb *ioarcb;
6128 struct ipr_cmnd *ipr_cmd;
56d6aa33 6129 unsigned long hrrq_flags, lock_flags;
d12f1576 6130 int rc;
05a6538a 6131 struct ipr_hrr_queue *hrrq;
6132 int hrrq_id;
1da177e4 6133
00bfef2c
BK		 6134 ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
6135
1da177e4 6136 scsi_cmd->result = (DID_OK << 16);
00bfef2c 6137 res = scsi_cmd->device->hostdata;
56d6aa33 6138
6139 if (ipr_is_gata(res) && res->sata_port) {
6140 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6141 rc = ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
6142 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6143 return rc;
6144 }
6145
05a6538a 6146 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6147 hrrq = &ioa_cfg->hrrq[hrrq_id];
1da177e4 6148
56d6aa33 6149 spin_lock_irqsave(hrrq->lock, hrrq_flags);
1da177e4
LT		 6150 /*
6151 * We are currently blocking all devices due to a host reset
6152 * We have told the host to stop giving us new requests, but
6153 * ERP ops don't count. FIXME
6154 */
bfae7820 6155 if (unlikely(!hrrq->allow_cmds && !hrrq->ioa_is_dead && !hrrq->removing_ioa)) {
56d6aa33 6156 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4 6157 return SCSI_MLQUEUE_HOST_BUSY;
00bfef2c 6158 }
1da177e4
LT		 6159
6160 /*
6161 * FIXME - Create scsi_set_host_offline interface
6162 * and the ioa_is_dead check can be removed
6163 */
bfae7820 6164 if (unlikely(hrrq->ioa_is_dead || hrrq->removing_ioa || !res)) {
56d6aa33 6165 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c 6166 goto err_nodev;
1da177e4
LT		 6167 }
6168
05a6538a 6169 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6170 if (ipr_cmd == NULL) {
56d6aa33 6171 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 6172 return SCSI_MLQUEUE_HOST_BUSY;
6173 }
56d6aa33 6174 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
35a39691 6175
172cd6e1 6176 ipr_init_ipr_cmnd(ipr_cmd, ipr_scsi_done);
1da177e4 6177 ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 6178
6179 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
6180 ipr_cmd->scsi_cmd = scsi_cmd;
172cd6e1 6181 ipr_cmd->done = ipr_scsi_eh_done;
1da177e4
LT		 6182
6183 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
6184 if (scsi_cmd->underflow == 0)
6185 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6186
1da177e4 6187 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
0b1f8d44
WX		 6188 if (ipr_is_gscsi(res) && res->reset_occurred) {
6189 res->reset_occurred = 0;
ab6c10b1 6190 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
0b1f8d44 6191 }
1da177e4
LT		 6192 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
6193 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
6194 }
6195
6196 if (scsi_cmd->cmnd[0] >= 0xC0 &&
05a6538a 6197 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) {
1da177e4 6198 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
05a6538a 6199 }
1da177e4 6200
d12f1576
DC		 6201 if (ioa_cfg->sis64)
6202 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
6203 else
6204 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
1da177e4 6205
56d6aa33 6206 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6207 if (unlikely(rc || (!hrrq->allow_cmds && !hrrq->ioa_is_dead))) {
05a6538a 6208 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
56d6aa33 6209 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6210 if (!rc)
6211 scsi_dma_unmap(scsi_cmd);
a5fb407e 6212 return SCSI_MLQUEUE_HOST_BUSY;
1da177e4
LT		 6213 }
6214
56d6aa33 6215 if (unlikely(hrrq->ioa_is_dead)) {
05a6538a 6216 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
56d6aa33 6217 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6218 scsi_dma_unmap(scsi_cmd);
6219 goto err_nodev;
6220 }
6221
6222 ioarcb->res_handle = res->res_handle;
6223 if (res->needs_sync_complete) {
6224 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
6225 res->needs_sync_complete = 0;
6226 }
05a6538a 6227 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_pending_q);
00bfef2c 6228 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
a5fb407e 6229 ipr_send_command(ipr_cmd);
56d6aa33 6230 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4 6231 return 0;
1da177e4 6232
00bfef2c 6233err_nodev:
56d6aa33 6234 spin_lock_irqsave(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6235 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
6236 scsi_cmd->result = (DID_NO_CONNECT << 16);
6237 scsi_cmd->scsi_done(scsi_cmd);
56d6aa33 6238 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6239 return 0;
6240}
f281233d 6241
35a39691
BK		 6242/**
6243 * ipr_ioctl - IOCTL handler
6244 * @sdev: scsi device struct
6245 * @cmd: IOCTL cmd
6246 * @arg: IOCTL arg
6247 *
6248 * Return value:
6249 * 0 on success / other on failure
6250 **/
bd705f2d 6251static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
35a39691
BK		 6252{
6253 struct ipr_resource_entry *res;
6254
6255 res = (struct ipr_resource_entry *)sdev->hostdata;
0ce3a7e5
BK		 6256 if (res && ipr_is_gata(res)) {
6257 if (cmd == HDIO_GET_IDENTITY)
6258 return -ENOTTY;
94be9a58 6259 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
0ce3a7e5 6260 }
35a39691
BK		 6261
6262 return -EINVAL;
6263}
6264
1da177e4
LT		 6265/**
6266 * ipr_info - Get information about the card/driver
6267 * @scsi_host: scsi host struct
6268 *
6269 * Return value:
6270 * pointer to buffer with description string
6271 **/
203fa3fe 6272static const char *ipr_ioa_info(struct Scsi_Host *host)
1da177e4
LT		 6273{
6274 static char buffer[512];
6275 struct ipr_ioa_cfg *ioa_cfg;
6276 unsigned long lock_flags = 0;
6277
6278 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
6279
6280 spin_lock_irqsave(host->host_lock, lock_flags);
6281 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
6282 spin_unlock_irqrestore(host->host_lock, lock_flags);
6283
6284 return buffer;
6285}
6286
6287static struct scsi_host_template driver_template = {
6288 .module = THIS_MODULE,
6289 .name = "IPR",
6290 .info = ipr_ioa_info,
35a39691 6291 .ioctl = ipr_ioctl,
1da177e4
LT		 6292 .queuecommand = ipr_queuecommand,
6293 .eh_abort_handler = ipr_eh_abort,
6294 .eh_device_reset_handler = ipr_eh_dev_reset,
6295 .eh_host_reset_handler = ipr_eh_host_reset,
6296 .slave_alloc = ipr_slave_alloc,
6297 .slave_configure = ipr_slave_configure,
6298 .slave_destroy = ipr_slave_destroy,
35a39691
BK		 6299 .target_alloc = ipr_target_alloc,
6300 .target_destroy = ipr_target_destroy,
1da177e4
LT		 6301 .change_queue_depth = ipr_change_queue_depth,
6302 .change_queue_type = ipr_change_queue_type,
6303 .bios_param = ipr_biosparam,
6304 .can_queue = IPR_MAX_COMMANDS,
6305 .this_id = -1,
6306 .sg_tablesize = IPR_MAX_SGLIST,
6307 .max_sectors = IPR_IOA_MAX_SECTORS,
6308 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
6309 .use_clustering = ENABLE_CLUSTERING,
6310 .shost_attrs = ipr_ioa_attrs,
6311 .sdev_attrs = ipr_dev_attrs,
54b2b50c
MP		 6312 .proc_name = IPR_NAME,
6313 .no_write_same = 1,
1da177e4
LT		 6314};
6315
35a39691
BK		 6316/**
6317 * ipr_ata_phy_reset - libata phy_reset handler
6318 * @ap: ata port to reset
6319 *
6320 **/
6321static void ipr_ata_phy_reset(struct ata_port *ap)
6322{
6323 unsigned long flags;
6324 struct ipr_sata_port *sata_port = ap->private_data;
6325 struct ipr_resource_entry *res = sata_port->res;
6326 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6327 int rc;
6328
6329 ENTER;
6330 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
203fa3fe 6331 while (ioa_cfg->in_reset_reload) {
35a39691
BK		 6332 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6333 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6334 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6335 }
6336
56d6aa33 6337 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
35a39691
BK		 6338 goto out_unlock;
6339
6340 rc = ipr_device_reset(ioa_cfg, res);
6341
6342 if (rc) {
3e4ec344 6343 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 6344 goto out_unlock;
6345 }
6346
3e7ebdfa
WB		 6347 ap->link.device[0].class = res->ata_class;
6348 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
3e4ec344 6349 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 6350
6351out_unlock:
6352 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6353 LEAVE;
6354}
6355
6356/**
6357 * ipr_ata_post_internal - Cleanup after an internal command
6358 * @qc: ATA queued command
6359 *
6360 * Return value:
6361 * none
6362 **/
6363static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
6364{
6365 struct ipr_sata_port *sata_port = qc->ap->private_data;
6366 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6367 struct ipr_cmnd *ipr_cmd;
05a6538a 6368 struct ipr_hrr_queue *hrrq;
35a39691
BK		 6369 unsigned long flags;
6370
6371 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
203fa3fe 6372 while (ioa_cfg->in_reset_reload) {
73d98ff0
BK		 6373 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6374 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6375 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6376 }
6377
05a6538a 6378 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 6379 spin_lock(&hrrq->_lock);
05a6538a 6380 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
6381 if (ipr_cmd->qc == qc) {
6382 ipr_device_reset(ioa_cfg, sata_port->res);
6383 break;
6384 }
35a39691 6385 }
56d6aa33 6386 spin_unlock(&hrrq->_lock);
35a39691
BK		 6387 }
6388 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6389}
6390
35a39691
BK		 6391/**
6392 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6393 * @regs: destination
6394 * @tf: source ATA taskfile
6395 *
6396 * Return value:
6397 * none
6398 **/
6399static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6400 struct ata_taskfile *tf)
6401{
6402 regs->feature = tf->feature;
6403 regs->nsect = tf->nsect;
6404 regs->lbal = tf->lbal;
6405 regs->lbam = tf->lbam;
6406 regs->lbah = tf->lbah;
6407 regs->device = tf->device;
6408 regs->command = tf->command;
6409 regs->hob_feature = tf->hob_feature;
6410 regs->hob_nsect = tf->hob_nsect;
6411 regs->hob_lbal = tf->hob_lbal;
6412 regs->hob_lbam = tf->hob_lbam;
6413 regs->hob_lbah = tf->hob_lbah;
6414 regs->ctl = tf->ctl;
6415}
6416
6417/**
6418 * ipr_sata_done - done function for SATA commands
6419 * @ipr_cmd: ipr command struct
6420 *
6421 * This function is invoked by the interrupt handler for
6422 * ops generated by the SCSI mid-layer to SATA devices
6423 *
6424 * Return value:
6425 * none
6426 **/
6427static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6428{
6429 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6430 struct ata_queued_cmd *qc = ipr_cmd->qc;
6431 struct ipr_sata_port *sata_port = qc->ap->private_data;
6432 struct ipr_resource_entry *res = sata_port->res;
96d21f00 6433 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
35a39691 6434
56d6aa33 6435 spin_lock(&ipr_cmd->hrrq->_lock);
96d21f00
WB		 6436 if (ipr_cmd->ioa_cfg->sis64)
6437 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6438 sizeof(struct ipr_ioasa_gata));
6439 else
6440 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6441 sizeof(struct ipr_ioasa_gata));
35a39691
BK		 6442 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6443
96d21f00 6444 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
3e7ebdfa 6445 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
35a39691
BK		 6446
6447 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
96d21f00 6448 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
35a39691 6449 else
96d21f00 6450 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
05a6538a 6451 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
56d6aa33 6452 spin_unlock(&ipr_cmd->hrrq->_lock);
35a39691
BK		 6453 ata_qc_complete(qc);
6454}
6455
a32c055f
WB		 6456/**
6457 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6458 * @ipr_cmd: ipr command struct
6459 * @qc: ATA queued command
6460 *
6461 **/
6462static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6463 struct ata_queued_cmd *qc)
6464{
6465 u32 ioadl_flags = 0;
6466 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1ac7c26d 6467 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ata_ioadl.ioadl64;
a32c055f
WB		 6468 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6469 int len = qc->nbytes;
6470 struct scatterlist *sg;
6471 unsigned int si;
6472 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6473
6474 if (len == 0)
6475 return;
6476
6477 if (qc->dma_dir == DMA_TO_DEVICE) {
6478 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6479 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6480 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6481 ioadl_flags = IPR_IOADL_FLAGS_READ;
6482
6483 ioarcb->data_transfer_length = cpu_to_be32(len);
6484 ioarcb->ioadl_len =
6485 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6486 ioarcb->u.sis64_addr_data.data_ioadl_addr =
1ac7c26d 6487 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl.ioadl64));
a32c055f
WB		 6488
6489 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6490 ioadl64->flags = cpu_to_be32(ioadl_flags);
6491 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6492 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6493
6494 last_ioadl64 = ioadl64;
6495 ioadl64++;
6496 }
6497
6498 if (likely(last_ioadl64))
6499 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6500}
6501
35a39691
BK		 6502/**
6503 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6504 * @ipr_cmd: ipr command struct
6505 * @qc: ATA queued command
6506 *
6507 **/
6508static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6509 struct ata_queued_cmd *qc)
6510{
6511 u32 ioadl_flags = 0;
6512 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 6513 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3be6cbd7 6514 struct ipr_ioadl_desc *last_ioadl = NULL;
dde20207 6515 int len = qc->nbytes;
35a39691 6516 struct scatterlist *sg;
ff2aeb1e 6517 unsigned int si;
35a39691
BK		 6518
6519 if (len == 0)
6520 return;
6521
6522 if (qc->dma_dir == DMA_TO_DEVICE) {
6523 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6524 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 6525 ioarcb->data_transfer_length = cpu_to_be32(len);
6526 ioarcb->ioadl_len =
35a39691
BK		 6527 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6528 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6529 ioadl_flags = IPR_IOADL_FLAGS_READ;
6530 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6531 ioarcb->read_ioadl_len =
6532 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6533 }
6534
ff2aeb1e 6535 for_each_sg(qc->sg, sg, qc->n_elem, si) {
35a39691
BK		 6536 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6537 ioadl->address = cpu_to_be32(sg_dma_address(sg));
3be6cbd7
JG		 6538
6539 last_ioadl = ioadl;
6540 ioadl++;
35a39691 6541 }
3be6cbd7
JG		 6542
6543 if (likely(last_ioadl))
6544 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
35a39691
BK		 6545}
6546
56d6aa33 6547/**
6548 * ipr_qc_defer - Get a free ipr_cmd
6549 * @qc: queued command
6550 *
6551 * Return value:
6552 * 0 if success
6553 **/
6554static int ipr_qc_defer(struct ata_queued_cmd *qc)
6555{
6556 struct ata_port *ap = qc->ap;
6557 struct ipr_sata_port *sata_port = ap->private_data;
6558 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6559 struct ipr_cmnd *ipr_cmd;
6560 struct ipr_hrr_queue *hrrq;
6561 int hrrq_id;
6562
6563 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6564 hrrq = &ioa_cfg->hrrq[hrrq_id];
6565
6566 qc->lldd_task = NULL;
6567 spin_lock(&hrrq->_lock);
6568 if (unlikely(hrrq->ioa_is_dead)) {
6569 spin_unlock(&hrrq->_lock);
6570 return 0;
6571 }
6572
6573 if (unlikely(!hrrq->allow_cmds)) {
6574 spin_unlock(&hrrq->_lock);
6575 return ATA_DEFER_LINK;
6576 }
6577
6578 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6579 if (ipr_cmd == NULL) {
6580 spin_unlock(&hrrq->_lock);
6581 return ATA_DEFER_LINK;
6582 }
6583
6584 qc->lldd_task = ipr_cmd;
6585 spin_unlock(&hrrq->_lock);
6586 return 0;
6587}
6588
35a39691
BK		 6589/**
6590 * ipr_qc_issue - Issue a SATA qc to a device
6591 * @qc: queued command
6592 *
6593 * Return value:
6594 * 0 if success
6595 **/
6596static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6597{
6598 struct ata_port *ap = qc->ap;
6599 struct ipr_sata_port *sata_port = ap->private_data;
6600 struct ipr_resource_entry *res = sata_port->res;
6601 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6602 struct ipr_cmnd *ipr_cmd;
6603 struct ipr_ioarcb *ioarcb;
6604 struct ipr_ioarcb_ata_regs *regs;
6605
56d6aa33 6606 if (qc->lldd_task == NULL)
6607 ipr_qc_defer(qc);
6608
6609 ipr_cmd = qc->lldd_task;
6610 if (ipr_cmd == NULL)
0feeed82 6611 return AC_ERR_SYSTEM;
35a39691 6612
56d6aa33 6613 qc->lldd_task = NULL;
6614 spin_lock(&ipr_cmd->hrrq->_lock);
6615 if (unlikely(!ipr_cmd->hrrq->allow_cmds ||
6616 ipr_cmd->hrrq->ioa_is_dead)) {
6617 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6618 spin_unlock(&ipr_cmd->hrrq->_lock);
6619 return AC_ERR_SYSTEM;
6620 }
6621
05a6538a 6622 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
35a39691 6623 ioarcb = &ipr_cmd->ioarcb;
35a39691 6624
a32c055f
WB		 6625 if (ioa_cfg->sis64) {
6626 regs = &ipr_cmd->i.ata_ioadl.regs;
6627 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6628 } else
6629 regs = &ioarcb->u.add_data.u.regs;
6630
6631 memset(regs, 0, sizeof(*regs));
6632 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
35a39691 6633
56d6aa33 6634 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
35a39691
BK		 6635 ipr_cmd->qc = qc;
6636 ipr_cmd->done = ipr_sata_done;
3e7ebdfa 6637 ipr_cmd->ioarcb.res_handle = res->res_handle;
35a39691
BK		 6638 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6639 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6640 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
dde20207 6641 ipr_cmd->dma_use_sg = qc->n_elem;
35a39691 6642
a32c055f
WB		 6643 if (ioa_cfg->sis64)
6644 ipr_build_ata_ioadl64(ipr_cmd, qc);
6645 else
6646 ipr_build_ata_ioadl(ipr_cmd, qc);
6647
35a39691
BK		 6648 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6649 ipr_copy_sata_tf(regs, &qc->tf);
6650 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
3e7ebdfa 6651 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
35a39691
BK		 6652
6653 switch (qc->tf.protocol) {
6654 case ATA_PROT_NODATA:
6655 case ATA_PROT_PIO:
6656 break;
6657
6658 case ATA_PROT_DMA:
6659 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6660 break;
6661
0dc36888
TH		 6662 case ATAPI_PROT_PIO:
6663 case ATAPI_PROT_NODATA:
35a39691
BK		 6664 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6665 break;
6666
0dc36888 6667 case ATAPI_PROT_DMA:
35a39691
BK		 6668 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6669 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6670 break;
6671
6672 default:
6673 WARN_ON(1);
56d6aa33 6674 spin_unlock(&ipr_cmd->hrrq->_lock);
0feeed82 6675 return AC_ERR_INVALID;
35a39691
BK		 6676 }
6677
a32c055f 6678 ipr_send_command(ipr_cmd);
56d6aa33 6679 spin_unlock(&ipr_cmd->hrrq->_lock);
a32c055f 6680
35a39691
BK		 6681 return 0;
6682}
6683
4c9bf4e7
TH		 6684/**
6685 * ipr_qc_fill_rtf - Read result TF
6686 * @qc: ATA queued command
6687 *
6688 * Return value:
6689 * true
6690 **/
6691static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6692{
6693 struct ipr_sata_port *sata_port = qc->ap->private_data;
6694 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6695 struct ata_taskfile *tf = &qc->result_tf;
6696
6697 tf->feature = g->error;
6698 tf->nsect = g->nsect;
6699 tf->lbal = g->lbal;
6700 tf->lbam = g->lbam;
6701 tf->lbah = g->lbah;
6702 tf->device = g->device;
6703 tf->command = g->status;
6704 tf->hob_nsect = g->hob_nsect;
6705 tf->hob_lbal = g->hob_lbal;
6706 tf->hob_lbam = g->hob_lbam;
6707 tf->hob_lbah = g->hob_lbah;
4c9bf4e7
TH		 6708
6709 return true;
6710}
6711
35a39691 6712static struct ata_port_operations ipr_sata_ops = {
35a39691 6713 .phy_reset = ipr_ata_phy_reset,
a1efdaba 6714 .hardreset = ipr_sata_reset,
35a39691 6715 .post_internal_cmd = ipr_ata_post_internal,
35a39691 6716 .qc_prep = ata_noop_qc_prep,
56d6aa33 6717 .qc_defer = ipr_qc_defer,
35a39691 6718 .qc_issue = ipr_qc_issue,
4c9bf4e7 6719 .qc_fill_rtf = ipr_qc_fill_rtf,
35a39691
BK		 6720 .port_start = ata_sas_port_start,
6721 .port_stop = ata_sas_port_stop
6722};
6723
6724static struct ata_port_info sata_port_info = {
9cbe056f 6725 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
0f2e0330
SS		 6726 .pio_mask = ATA_PIO4_ONLY,
6727 .mwdma_mask = ATA_MWDMA2,
6728 .udma_mask = ATA_UDMA6,
35a39691
BK		 6729 .port_ops = &ipr_sata_ops
6730};
6731
1da177e4
LT		 6732#ifdef CONFIG_PPC_PSERIES
6733static const u16 ipr_blocked_processors[] = {
d3dbeef6
ME		 6734 PVR_NORTHSTAR,
6735 PVR_PULSAR,
6736 PVR_POWER4,
6737 PVR_ICESTAR,
6738 PVR_SSTAR,
6739 PVR_POWER4p,
6740 PVR_630,
6741 PVR_630p
1da177e4
LT		 6742};
6743
6744/**
6745 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6746 * @ioa_cfg: ioa cfg struct
6747 *
6748 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6749 * certain pSeries hardware. This function determines if the given
6750 * adapter is in one of these confgurations or not.
6751 *
6752 * Return value:
6753 * 1 if adapter is not supported / 0 if adapter is supported
6754 **/
6755static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6756{
1da177e4
LT		 6757 int i;
6758
44c10138 6759 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
203fa3fe 6760 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) {
d3dbeef6 6761 if (pvr_version_is(ipr_blocked_processors[i]))
44c10138 6762 return 1;
1da177e4
LT		 6763 }
6764 }
6765 return 0;
6766}
6767#else
6768#define ipr_invalid_adapter(ioa_cfg) 0
6769#endif
6770
6771/**
6772 * ipr_ioa_bringdown_done - IOA bring down completion.
6773 * @ipr_cmd: ipr command struct
6774 *
6775 * This function processes the completion of an adapter bring down.
6776 * It wakes any reset sleepers.
6777 *
6778 * Return value:
6779 * IPR_RC_JOB_RETURN
6780 **/
6781static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6782{
6783 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96b04db9 6784 int i;
1da177e4
LT		 6785
6786 ENTER;
bfae7820
BK		 6787 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
6788 ipr_trace;
6789 spin_unlock_irq(ioa_cfg->host->host_lock);
6790 scsi_unblock_requests(ioa_cfg->host);
6791 spin_lock_irq(ioa_cfg->host->host_lock);
6792 }
6793
1da177e4
LT		 6794 ioa_cfg->in_reset_reload = 0;
6795 ioa_cfg->reset_retries = 0;
96b04db9 6796 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
6797 spin_lock(&ioa_cfg->hrrq[i]._lock);
6798 ioa_cfg->hrrq[i].ioa_is_dead = 1;
6799 spin_unlock(&ioa_cfg->hrrq[i]._lock);
6800 }
6801 wmb();
6802
05a6538a 6803 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4 6804 wake_up_all(&ioa_cfg->reset_wait_q);
1da177e4
LT		 6805 LEAVE;
6806
6807 return IPR_RC_JOB_RETURN;
6808}
6809
6810/**
6811 * ipr_ioa_reset_done - IOA reset completion.
6812 * @ipr_cmd: ipr command struct
6813 *
6814 * This function processes the completion of an adapter reset.
6815 * It schedules any necessary mid-layer add/removes and
6816 * wakes any reset sleepers.
6817 *
6818 * Return value:
6819 * IPR_RC_JOB_RETURN
6820 **/
6821static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
6822{
6823 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6824 struct ipr_resource_entry *res;
6825 struct ipr_hostrcb *hostrcb, *temp;
56d6aa33 6826 int i = 0, j;
1da177e4
LT		 6827
6828 ENTER;
6829 ioa_cfg->in_reset_reload = 0;
56d6aa33 6830 for (j = 0; j < ioa_cfg->hrrq_num; j++) {
6831 spin_lock(&ioa_cfg->hrrq[j]._lock);
6832 ioa_cfg->hrrq[j].allow_cmds = 1;
6833 spin_unlock(&ioa_cfg->hrrq[j]._lock);
6834 }
6835 wmb();
1da177e4 6836 ioa_cfg->reset_cmd = NULL;
3d1d0da6 6837 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
1da177e4
LT		 6838
6839 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
6840 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
6841 ipr_trace;
6842 break;
6843 }
6844 }
6845 schedule_work(&ioa_cfg->work_q);
6846
6847 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
6848 list_del(&hostrcb->queue);
6849 if (i++ < IPR_NUM_LOG_HCAMS)
6850 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
6851 else
6852 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
6853 }
6854
6bb04170 6855 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
1da177e4
LT		 6856 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
6857
6858 ioa_cfg->reset_retries = 0;
05a6538a 6859 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 6860 wake_up_all(&ioa_cfg->reset_wait_q);
6861
30237853 6862 spin_unlock(ioa_cfg->host->host_lock);
1da177e4 6863 scsi_unblock_requests(ioa_cfg->host);
30237853 6864 spin_lock(ioa_cfg->host->host_lock);
1da177e4 6865
56d6aa33 6866 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
1da177e4
LT		 6867 scsi_block_requests(ioa_cfg->host);
6868
6869 LEAVE;
6870 return IPR_RC_JOB_RETURN;
6871}
6872
6873/**
6874 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
6875 * @supported_dev: supported device struct
6876 * @vpids: vendor product id struct
6877 *
6878 * Return value:
6879 * none
6880 **/
6881static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
6882 struct ipr_std_inq_vpids *vpids)
6883{
6884 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
6885 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
6886 supported_dev->num_records = 1;
6887 supported_dev->data_length =
6888 cpu_to_be16(sizeof(struct ipr_supported_device));
6889 supported_dev->reserved = 0;
6890}
6891
6892/**
6893 * ipr_set_supported_devs - Send Set Supported Devices for a device
6894 * @ipr_cmd: ipr command struct
6895 *
a32c055f 6896 * This function sends a Set Supported Devices to the adapter
1da177e4
LT		 6897 *
6898 * Return value:
6899 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6900 **/
6901static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
6902{
6903 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6904 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
1da177e4
LT		 6905 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6906 struct ipr_resource_entry *res = ipr_cmd->u.res;
6907
6908 ipr_cmd->job_step = ipr_ioa_reset_done;
6909
6910 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
e4fbf44e 6911 if (!ipr_is_scsi_disk(res))
1da177e4
LT		 6912 continue;
6913
6914 ipr_cmd->u.res = res;
3e7ebdfa 6915 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
1da177e4
LT		 6916
6917 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6918 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6919 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6920
6921 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
3e7ebdfa 6922 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
1da177e4
LT		 6923 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
6924 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
6925
a32c055f
WB		 6926 ipr_init_ioadl(ipr_cmd,
6927 ioa_cfg->vpd_cbs_dma +
6928 offsetof(struct ipr_misc_cbs, supp_dev),
6929 sizeof(struct ipr_supported_device),
6930 IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 6931
6932 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6933 IPR_SET_SUP_DEVICE_TIMEOUT);
6934
3e7ebdfa
WB		 6935 if (!ioa_cfg->sis64)
6936 ipr_cmd->job_step = ipr_set_supported_devs;
05a6538a 6937 LEAVE;
1da177e4
LT		 6938 return IPR_RC_JOB_RETURN;
6939 }
6940
05a6538a 6941 LEAVE;
1da177e4
LT		 6942 return IPR_RC_JOB_CONTINUE;
6943}
6944
6945/**
6946 * ipr_get_mode_page - Locate specified mode page
6947 * @mode_pages: mode page buffer
6948 * @page_code: page code to find
6949 * @len: minimum required length for mode page
6950 *
6951 * Return value:
6952 * pointer to mode page / NULL on failure
6953 **/
6954static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
6955 u32 page_code, u32 len)
6956{
6957 struct ipr_mode_page_hdr *mode_hdr;
6958 u32 page_length;
6959 u32 length;
6960
6961 if (!mode_pages || (mode_pages->hdr.length == 0))
6962 return NULL;
6963
6964 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
6965 mode_hdr = (struct ipr_mode_page_hdr *)
6966 (mode_pages->data + mode_pages->hdr.block_desc_len);
6967
6968 while (length) {
6969 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
6970 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
6971 return mode_hdr;
6972 break;
6973 } else {
6974 page_length = (sizeof(struct ipr_mode_page_hdr) +
6975 mode_hdr->page_length);
6976 length -= page_length;
6977 mode_hdr = (struct ipr_mode_page_hdr *)
6978 ((unsigned long)mode_hdr + page_length);
6979 }
6980 }
6981 return NULL;
6982}
6983
6984/**
6985 * ipr_check_term_power - Check for term power errors
6986 * @ioa_cfg: ioa config struct
6987 * @mode_pages: IOAFP mode pages buffer
6988 *
6989 * Check the IOAFP's mode page 28 for term power errors
6990 *
6991 * Return value:
6992 * nothing
6993 **/
6994static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
6995 struct ipr_mode_pages *mode_pages)
6996{
6997 int i;
6998 int entry_length;
6999 struct ipr_dev_bus_entry *bus;
7000 struct ipr_mode_page28 *mode_page;
7001
7002 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7003 sizeof(struct ipr_mode_page28));
7004
7005 entry_length = mode_page->entry_length;
7006
7007 bus = mode_page->bus;
7008
7009 for (i = 0; i < mode_page->num_entries; i++) {
7010 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
7011 dev_err(&ioa_cfg->pdev->dev,
7012 "Term power is absent on scsi bus %d\n",
7013 bus->res_addr.bus);
7014 }
7015
7016 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
7017 }
7018}
7019
7020/**
7021 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
7022 * @ioa_cfg: ioa config struct
7023 *
7024 * Looks through the config table checking for SES devices. If
7025 * the SES device is in the SES table indicating a maximum SCSI
7026 * bus speed, the speed is limited for the bus.
7027 *
7028 * Return value:
7029 * none
7030 **/
7031static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
7032{
7033 u32 max_xfer_rate;
7034 int i;
7035
7036 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7037 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
7038 ioa_cfg->bus_attr[i].bus_width);
7039
7040 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
7041 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
7042 }
7043}
7044
7045/**
7046 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
7047 * @ioa_cfg: ioa config struct
7048 * @mode_pages: mode page 28 buffer
7049 *
7050 * Updates mode page 28 based on driver configuration
7051 *
7052 * Return value:
7053 * none
7054 **/
7055static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
203fa3fe 7056 struct ipr_mode_pages *mode_pages)
1da177e4
LT		 7057{
7058 int i, entry_length;
7059 struct ipr_dev_bus_entry *bus;
7060 struct ipr_bus_attributes *bus_attr;
7061 struct ipr_mode_page28 *mode_page;
7062
7063 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7064 sizeof(struct ipr_mode_page28));
7065
7066 entry_length = mode_page->entry_length;
7067
7068 /* Loop for each device bus entry */
7069 for (i = 0, bus = mode_page->bus;
7070 i < mode_page->num_entries;
7071 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
7072 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
7073 dev_err(&ioa_cfg->pdev->dev,
7074 "Invalid resource address reported: 0x%08X\n",
7075 IPR_GET_PHYS_LOC(bus->res_addr));
7076 continue;
7077 }
7078
7079 bus_attr = &ioa_cfg->bus_attr[i];
7080 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
7081 bus->bus_width = bus_attr->bus_width;
7082 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
7083 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
7084 if (bus_attr->qas_enabled)
7085 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
7086 else
7087 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
7088 }
7089}
7090
7091/**
7092 * ipr_build_mode_select - Build a mode select command
7093 * @ipr_cmd: ipr command struct
7094 * @res_handle: resource handle to send command to
7095 * @parm: Byte 2 of Mode Sense command
7096 * @dma_addr: DMA buffer address
7097 * @xfer_len: data transfer length
7098 *
7099 * Return value:
7100 * none
7101 **/
7102static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
a32c055f
WB		 7103 __be32 res_handle, u8 parm,
7104 dma_addr_t dma_addr, u8 xfer_len)
1da177e4 7105{
1da177e4
LT		 7106 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7107
7108 ioarcb->res_handle = res_handle;
7109 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7110 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7111 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
7112 ioarcb->cmd_pkt.cdb[1] = parm;
7113 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7114
a32c055f 7115 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 7116}
7117
7118/**
7119 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
7120 * @ipr_cmd: ipr command struct
7121 *
7122 * This function sets up the SCSI bus attributes and sends
7123 * a Mode Select for Page 28 to activate them.
7124 *
7125 * Return value:
7126 * IPR_RC_JOB_RETURN
7127 **/
7128static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
7129{
7130 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7131 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7132 int length;
7133
7134 ENTER;
4733804c
BK		 7135 ipr_scsi_bus_speed_limit(ioa_cfg);
7136 ipr_check_term_power(ioa_cfg, mode_pages);
7137 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
7138 length = mode_pages->hdr.length + 1;
7139 mode_pages->hdr.length = 0;
1da177e4
LT		 7140
7141 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7142 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7143 length);
7144
f72919ec
WB		 7145 ipr_cmd->job_step = ipr_set_supported_devs;
7146 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7147 struct ipr_resource_entry, queue);
1da177e4
LT		 7148 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7149
7150 LEAVE;
7151 return IPR_RC_JOB_RETURN;
7152}
7153
7154/**
7155 * ipr_build_mode_sense - Builds a mode sense command
7156 * @ipr_cmd: ipr command struct
7157 * @res: resource entry struct
7158 * @parm: Byte 2 of mode sense command
7159 * @dma_addr: DMA address of mode sense buffer
7160 * @xfer_len: Size of DMA buffer
7161 *
7162 * Return value:
7163 * none
7164 **/
7165static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
7166 __be32 res_handle,
a32c055f 7167 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
1da177e4 7168{
1da177e4
LT		 7169 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7170
7171 ioarcb->res_handle = res_handle;
7172 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
7173 ioarcb->cmd_pkt.cdb[2] = parm;
7174 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7175 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7176
a32c055f 7177 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7178}
7179
dfed823e
BK		 7180/**
7181 * ipr_reset_cmd_failed - Handle failure of IOA reset command
7182 * @ipr_cmd: ipr command struct
7183 *
7184 * This function handles the failure of an IOA bringup command.
7185 *
7186 * Return value:
7187 * IPR_RC_JOB_RETURN
7188 **/
7189static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
7190{
7191 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 7192 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e
BK		 7193
7194 dev_err(&ioa_cfg->pdev->dev,
7195 "0x%02X failed with IOASC: 0x%08X\n",
7196 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
7197
7198 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
05a6538a 7199 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
dfed823e
BK		 7200 return IPR_RC_JOB_RETURN;
7201}
7202
7203/**
7204 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
7205 * @ipr_cmd: ipr command struct
7206 *
7207 * This function handles the failure of a Mode Sense to the IOAFP.
7208 * Some adapters do not handle all mode pages.
7209 *
7210 * Return value:
7211 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7212 **/
7213static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
7214{
f72919ec 7215 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 7216 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e
BK		 7217
7218 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
f72919ec
WB		 7219 ipr_cmd->job_step = ipr_set_supported_devs;
7220 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7221 struct ipr_resource_entry, queue);
dfed823e
BK		 7222 return IPR_RC_JOB_CONTINUE;
7223 }
7224
7225 return ipr_reset_cmd_failed(ipr_cmd);
7226}
7227
1da177e4
LT		 7228/**
7229 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
7230 * @ipr_cmd: ipr command struct
7231 *
7232 * This function send a Page 28 mode sense to the IOA to
7233 * retrieve SCSI bus attributes.
7234 *
7235 * Return value:
7236 * IPR_RC_JOB_RETURN
7237 **/
7238static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
7239{
7240 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7241
7242 ENTER;
7243 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7244 0x28, ioa_cfg->vpd_cbs_dma +
7245 offsetof(struct ipr_misc_cbs, mode_pages),
7246 sizeof(struct ipr_mode_pages));
7247
7248 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
dfed823e 7249 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
1da177e4
LT		 7250
7251 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7252
7253 LEAVE;
7254 return IPR_RC_JOB_RETURN;
7255}
7256
ac09c349
BK		 7257/**
7258 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
7259 * @ipr_cmd: ipr command struct
7260 *
7261 * This function enables dual IOA RAID support if possible.
7262 *
7263 * Return value:
7264 * IPR_RC_JOB_RETURN
7265 **/
7266static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
7267{
7268 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7269 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7270 struct ipr_mode_page24 *mode_page;
7271 int length;
7272
7273 ENTER;
7274 mode_page = ipr_get_mode_page(mode_pages, 0x24,
7275 sizeof(struct ipr_mode_page24));
7276
7277 if (mode_page)
7278 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
7279
7280 length = mode_pages->hdr.length + 1;
7281 mode_pages->hdr.length = 0;
7282
7283 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7284 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7285 length);
7286
7287 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7288 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7289
7290 LEAVE;
7291 return IPR_RC_JOB_RETURN;
7292}
7293
7294/**
7295 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
7296 * @ipr_cmd: ipr command struct
7297 *
7298 * This function handles the failure of a Mode Sense to the IOAFP.
7299 * Some adapters do not handle all mode pages.
7300 *
7301 * Return value:
7302 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7303 **/
7304static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
7305{
96d21f00 7306 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
ac09c349
BK		 7307
7308 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7309 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7310 return IPR_RC_JOB_CONTINUE;
7311 }
7312
7313 return ipr_reset_cmd_failed(ipr_cmd);
7314}
7315
7316/**
7317 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
7318 * @ipr_cmd: ipr command struct
7319 *
7320 * This function send a mode sense to the IOA to retrieve
7321 * the IOA Advanced Function Control mode page.
7322 *
7323 * Return value:
7324 * IPR_RC_JOB_RETURN
7325 **/
7326static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
7327{
7328 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7329
7330 ENTER;
7331 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7332 0x24, ioa_cfg->vpd_cbs_dma +
7333 offsetof(struct ipr_misc_cbs, mode_pages),
7334 sizeof(struct ipr_mode_pages));
7335
7336 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
7337 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
7338
7339 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7340
7341 LEAVE;
7342 return IPR_RC_JOB_RETURN;
7343}
7344
1da177e4
LT		 7345/**
7346 * ipr_init_res_table - Initialize the resource table
7347 * @ipr_cmd: ipr command struct
7348 *
7349 * This function looks through the existing resource table, comparing
7350 * it with the config table. This function will take care of old/new
7351 * devices and schedule adding/removing them from the mid-layer
7352 * as appropriate.
7353 *
7354 * Return value:
7355 * IPR_RC_JOB_CONTINUE
7356 **/
7357static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
7358{
7359 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7360 struct ipr_resource_entry *res, *temp;
3e7ebdfa
WB		 7361 struct ipr_config_table_entry_wrapper cfgtew;
7362 int entries, found, flag, i;
1da177e4
LT		 7363 LIST_HEAD(old_res);
7364
7365 ENTER;
3e7ebdfa
WB		 7366 if (ioa_cfg->sis64)
7367 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
7368 else
7369 flag = ioa_cfg->u.cfg_table->hdr.flags;
7370
7371 if (flag & IPR_UCODE_DOWNLOAD_REQ)
1da177e4
LT		 7372 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
7373
7374 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
7375 list_move_tail(&res->queue, &old_res);
7376
3e7ebdfa 7377 if (ioa_cfg->sis64)
438b0331 7378 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
3e7ebdfa
WB		 7379 else
7380 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
7381
7382 for (i = 0; i < entries; i++) {
7383 if (ioa_cfg->sis64)
7384 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
7385 else
7386 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
1da177e4
LT		 7387 found = 0;
7388
7389 list_for_each_entry_safe(res, temp, &old_res, queue) {
3e7ebdfa 7390 if (ipr_is_same_device(res, &cfgtew)) {
1da177e4
LT		 7391 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7392 found = 1;
7393 break;
7394 }
7395 }
7396
7397 if (!found) {
7398 if (list_empty(&ioa_cfg->free_res_q)) {
7399 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
7400 break;
7401 }
7402
7403 found = 1;
7404 res = list_entry(ioa_cfg->free_res_q.next,
7405 struct ipr_resource_entry, queue);
7406 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
3e7ebdfa 7407 ipr_init_res_entry(res, &cfgtew);
1da177e4 7408 res->add_to_ml = 1;
56115598
WB		 7409 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
7410 res->sdev->allow_restart = 1;
1da177e4
LT		 7411
7412 if (found)
3e7ebdfa 7413 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 7414 }
7415
7416 list_for_each_entry_safe(res, temp, &old_res, queue) {
7417 if (res->sdev) {
7418 res->del_from_ml = 1;
3e7ebdfa 7419 res->res_handle = IPR_INVALID_RES_HANDLE;
1da177e4 7420 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
1da177e4
LT		 7421 }
7422 }
7423
3e7ebdfa
WB		 7424 list_for_each_entry_safe(res, temp, &old_res, queue) {
7425 ipr_clear_res_target(res);
7426 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
7427 }
7428
ac09c349
BK		 7429 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7430 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
7431 else
7432 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
1da177e4
LT		 7433
7434 LEAVE;
7435 return IPR_RC_JOB_CONTINUE;
7436}
7437
7438/**
7439 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
7440 * @ipr_cmd: ipr command struct
7441 *
7442 * This function sends a Query IOA Configuration command
7443 * to the adapter to retrieve the IOA configuration table.
7444 *
7445 * Return value:
7446 * IPR_RC_JOB_RETURN
7447 **/
7448static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
7449{
7450 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7451 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4 7452 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
ac09c349 7453 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
1da177e4
LT		 7454
7455 ENTER;
ac09c349
BK		 7456 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
7457 ioa_cfg->dual_raid = 1;
1da177e4
LT		 7458 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7459 ucode_vpd->major_release, ucode_vpd->card_type,
7460 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7461 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7462 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7463
7464 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
438b0331 7465 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
3e7ebdfa
WB		 7466 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7467 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
1da177e4 7468
3e7ebdfa 7469 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
a32c055f 7470 IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7471
7472 ipr_cmd->job_step = ipr_init_res_table;
7473
7474 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7475
7476 LEAVE;
7477 return IPR_RC_JOB_RETURN;
7478}
7479
7480/**
7481 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7482 * @ipr_cmd: ipr command struct
7483 *
7484 * This utility function sends an inquiry to the adapter.
7485 *
7486 * Return value:
7487 * none
7488 **/
7489static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
a32c055f 7490 dma_addr_t dma_addr, u8 xfer_len)
1da177e4
LT		 7491{
7492 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 7493
7494 ENTER;
7495 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7496 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7497
7498 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
7499 ioarcb->cmd_pkt.cdb[1] = flags;
7500 ioarcb->cmd_pkt.cdb[2] = page;
7501 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7502
a32c055f 7503 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7504
7505 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7506 LEAVE;
7507}
7508
62275040
BK		 7509/**
7510 * ipr_inquiry_page_supported - Is the given inquiry page supported
7511 * @page0: inquiry page 0 buffer
7512 * @page: page code.
7513 *
7514 * This function determines if the specified inquiry page is supported.
7515 *
7516 * Return value:
7517 * 1 if page is supported / 0 if not
7518 **/
7519static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7520{
7521 int i;
7522
7523 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7524 if (page0->page[i] == page)
7525 return 1;
7526
7527 return 0;
7528}
7529
ac09c349
BK		 7530/**
7531 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7532 * @ipr_cmd: ipr command struct
7533 *
7534 * This function sends a Page 0xD0 inquiry to the adapter
7535 * to retrieve adapter capabilities.
7536 *
7537 * Return value:
7538 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7539 **/
7540static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7541{
7542 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7543 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7544 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7545
7546 ENTER;
7547 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7548 memset(cap, 0, sizeof(*cap));
7549
7550 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7551 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7552 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7553 sizeof(struct ipr_inquiry_cap));
7554 return IPR_RC_JOB_RETURN;
7555 }
7556
7557 LEAVE;
7558 return IPR_RC_JOB_CONTINUE;
7559}
7560
1da177e4
LT		 7561/**
7562 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7563 * @ipr_cmd: ipr command struct
7564 *
7565 * This function sends a Page 3 inquiry to the adapter
7566 * to retrieve software VPD information.
7567 *
7568 * Return value:
7569 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7570 **/
7571static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
62275040
BK		 7572{
7573 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
62275040
BK		 7574
7575 ENTER;
7576
ac09c349 7577 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
62275040
BK		 7578
7579 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7580 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7581 sizeof(struct ipr_inquiry_page3));
7582
7583 LEAVE;
7584 return IPR_RC_JOB_RETURN;
7585}
7586
7587/**
7588 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7589 * @ipr_cmd: ipr command struct
7590 *
7591 * This function sends a Page 0 inquiry to the adapter
7592 * to retrieve supported inquiry pages.
7593 *
7594 * Return value:
7595 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7596 **/
7597static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7598{
7599 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7600 char type[5];
7601
7602 ENTER;
7603
7604 /* Grab the type out of the VPD and store it away */
7605 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7606 type[4] = '\0';
7607 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7608
62275040 7609 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
1da177e4 7610
62275040
BK		 7611 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7612 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7613 sizeof(struct ipr_inquiry_page0));
1da177e4
LT		 7614
7615 LEAVE;
7616 return IPR_RC_JOB_RETURN;
7617}
7618
7619/**
7620 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7621 * @ipr_cmd: ipr command struct
7622 *
7623 * This function sends a standard inquiry to the adapter.
7624 *
7625 * Return value:
7626 * IPR_RC_JOB_RETURN
7627 **/
7628static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7629{
7630 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7631
7632 ENTER;
62275040 7633 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
1da177e4
LT		 7634
7635 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7636 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7637 sizeof(struct ipr_ioa_vpd));
7638
7639 LEAVE;
7640 return IPR_RC_JOB_RETURN;
7641}
7642
7643/**
214777ba 7644 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
1da177e4
LT		 7645 * @ipr_cmd: ipr command struct
7646 *
7647 * This function send an Identify Host Request Response Queue
7648 * command to establish the HRRQ with the adapter.
7649 *
7650 * Return value:
7651 * IPR_RC_JOB_RETURN
7652 **/
214777ba 7653static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7654{
7655 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7656 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
05a6538a 7657 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 7658
7659 ENTER;
05a6538a 7660 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
1da177e4
LT		 7661 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7662
56d6aa33 7663 if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) {
7664 hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index];
1da177e4 7665
05a6538a 7666 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7667 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1da177e4 7668
05a6538a 7669 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7670 if (ioa_cfg->sis64)
7671 ioarcb->cmd_pkt.cdb[1] = 0x1;
214777ba 7672
05a6538a 7673 if (ioa_cfg->nvectors == 1)
7674 ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE;
7675 else
7676 ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE;
7677
7678 ioarcb->cmd_pkt.cdb[2] =
7679 ((u64) hrrq->host_rrq_dma >> 24) & 0xff;
7680 ioarcb->cmd_pkt.cdb[3] =
7681 ((u64) hrrq->host_rrq_dma >> 16) & 0xff;
7682 ioarcb->cmd_pkt.cdb[4] =
7683 ((u64) hrrq->host_rrq_dma >> 8) & 0xff;
7684 ioarcb->cmd_pkt.cdb[5] =
7685 ((u64) hrrq->host_rrq_dma) & 0xff;
7686 ioarcb->cmd_pkt.cdb[7] =
7687 ((sizeof(u32) * hrrq->size) >> 8) & 0xff;
7688 ioarcb->cmd_pkt.cdb[8] =
7689 (sizeof(u32) * hrrq->size) & 0xff;
7690
7691 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
56d6aa33 7692 ioarcb->cmd_pkt.cdb[9] =
7693 ioa_cfg->identify_hrrq_index;
1da177e4 7694
05a6538a 7695 if (ioa_cfg->sis64) {
7696 ioarcb->cmd_pkt.cdb[10] =
7697 ((u64) hrrq->host_rrq_dma >> 56) & 0xff;
7698 ioarcb->cmd_pkt.cdb[11] =
7699 ((u64) hrrq->host_rrq_dma >> 48) & 0xff;
7700 ioarcb->cmd_pkt.cdb[12] =
7701 ((u64) hrrq->host_rrq_dma >> 40) & 0xff;
7702 ioarcb->cmd_pkt.cdb[13] =
7703 ((u64) hrrq->host_rrq_dma >> 32) & 0xff;
7704 }
7705
7706 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
56d6aa33 7707 ioarcb->cmd_pkt.cdb[14] =
7708 ioa_cfg->identify_hrrq_index;
05a6538a 7709
7710 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7711 IPR_INTERNAL_TIMEOUT);
7712
56d6aa33 7713 if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num)
7714 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
05a6538a 7715
7716 LEAVE;
7717 return IPR_RC_JOB_RETURN;
05a6538a 7718 }
7719
1da177e4 7720 LEAVE;
05a6538a 7721 return IPR_RC_JOB_CONTINUE;
1da177e4
LT		 7722}
7723
7724/**
7725 * ipr_reset_timer_done - Adapter reset timer function
7726 * @ipr_cmd: ipr command struct
7727 *
7728 * Description: This function is used in adapter reset processing
7729 * for timing events. If the reset_cmd pointer in the IOA
7730 * config struct is not this adapter's we are doing nested
7731 * resets and fail_all_ops will take care of freeing the
7732 * command block.
7733 *
7734 * Return value:
7735 * none
7736 **/
7737static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
7738{
7739 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7740 unsigned long lock_flags = 0;
7741
7742 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7743
7744 if (ioa_cfg->reset_cmd == ipr_cmd) {
7745 list_del(&ipr_cmd->queue);
7746 ipr_cmd->done(ipr_cmd);
7747 }
7748
7749 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7750}
7751
7752/**
7753 * ipr_reset_start_timer - Start a timer for adapter reset job
7754 * @ipr_cmd: ipr command struct
7755 * @timeout: timeout value
7756 *
7757 * Description: This function is used in adapter reset processing
7758 * for timing events. If the reset_cmd pointer in the IOA
7759 * config struct is not this adapter's we are doing nested
7760 * resets and fail_all_ops will take care of freeing the
7761 * command block.
7762 *
7763 * Return value:
7764 * none
7765 **/
7766static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
7767 unsigned long timeout)
7768{
05a6538a 7769
7770 ENTER;
7771 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 7772 ipr_cmd->done = ipr_reset_ioa_job;
7773
7774 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7775 ipr_cmd->timer.expires = jiffies + timeout;
7776 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
7777 add_timer(&ipr_cmd->timer);
7778}
7779
7780/**
7781 * ipr_init_ioa_mem - Initialize ioa_cfg control block
7782 * @ioa_cfg: ioa cfg struct
7783 *
7784 * Return value:
7785 * nothing
7786 **/
7787static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
7788{
05a6538a 7789 struct ipr_hrr_queue *hrrq;
1da177e4 7790
05a6538a 7791 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 7792 spin_lock(&hrrq->_lock);
05a6538a 7793 memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size);
7794
7795 /* Initialize Host RRQ pointers */
7796 hrrq->hrrq_start = hrrq->host_rrq;
7797 hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1];
7798 hrrq->hrrq_curr = hrrq->hrrq_start;
7799 hrrq->toggle_bit = 1;
56d6aa33 7800 spin_unlock(&hrrq->_lock);
05a6538a 7801 }
56d6aa33 7802 wmb();
05a6538a 7803
56d6aa33 7804 ioa_cfg->identify_hrrq_index = 0;
7805 if (ioa_cfg->hrrq_num == 1)
7806 atomic_set(&ioa_cfg->hrrq_index, 0);
7807 else
7808 atomic_set(&ioa_cfg->hrrq_index, 1);
1da177e4
LT		 7809
7810 /* Zero out config table */
3e7ebdfa 7811 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
1da177e4
LT		 7812}
7813
214777ba
WB		 7814/**
7815 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
7816 * @ipr_cmd: ipr command struct
7817 *
7818 * Return value:
7819 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7820 **/
7821static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
7822{
7823 unsigned long stage, stage_time;
7824 u32 feedback;
7825 volatile u32 int_reg;
7826 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7827 u64 maskval = 0;
7828
7829 feedback = readl(ioa_cfg->regs.init_feedback_reg);
7830 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
7831 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
7832
7833 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
7834
7835 /* sanity check the stage_time value */
438b0331
WB		 7836 if (stage_time == 0)
7837 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
7838 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
214777ba
WB		 7839 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
7840 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
7841 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
7842
7843 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
7844 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
7845 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7846 stage_time = ioa_cfg->transop_timeout;
7847 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7848 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
1df79ca4
WB		 7849 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7850 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7851 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7852 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7853 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
7854 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
7855 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7856 return IPR_RC_JOB_CONTINUE;
7857 }
214777ba
WB		 7858 }
7859
7860 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7861 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
7862 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7863 ipr_cmd->done = ipr_reset_ioa_job;
7864 add_timer(&ipr_cmd->timer);
05a6538a 7865
7866 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
214777ba
WB		 7867
7868 return IPR_RC_JOB_RETURN;
7869}
7870
1da177e4
LT		 7871/**
7872 * ipr_reset_enable_ioa - Enable the IOA following a reset.
7873 * @ipr_cmd: ipr command struct
7874 *
7875 * This function reinitializes some control blocks and
7876 * enables destructive diagnostics on the adapter.
7877 *
7878 * Return value:
7879 * IPR_RC_JOB_RETURN
7880 **/
7881static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
7882{
7883 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7884 volatile u32 int_reg;
7be96900 7885 volatile u64 maskval;
56d6aa33 7886 int i;
1da177e4
LT		 7887
7888 ENTER;
214777ba 7889 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
1da177e4
LT		 7890 ipr_init_ioa_mem(ioa_cfg);
7891
56d6aa33 7892 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
7893 spin_lock(&ioa_cfg->hrrq[i]._lock);
7894 ioa_cfg->hrrq[i].allow_interrupts = 1;
7895 spin_unlock(&ioa_cfg->hrrq[i]._lock);
7896 }
7897 wmb();
8701f185
WB		 7898 if (ioa_cfg->sis64) {
7899 /* Set the adapter to the correct endian mode. */
7900 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7901 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7902 }
7903
7be96900 7904 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
1da177e4
LT		 7905
7906 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7907 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
214777ba 7908 ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4
LT		 7909 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7910 return IPR_RC_JOB_CONTINUE;
7911 }
7912
7913 /* Enable destructive diagnostics on IOA */
214777ba
WB		 7914 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
7915
7be96900
WB		 7916 if (ioa_cfg->sis64) {
7917 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7918 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
7919 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
7920 } else
7921 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4 7922
1da177e4
LT		 7923 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7924
7925 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
7926
214777ba
WB		 7927 if (ioa_cfg->sis64) {
7928 ipr_cmd->job_step = ipr_reset_next_stage;
7929 return IPR_RC_JOB_CONTINUE;
7930 }
7931
1da177e4 7932 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
5469cb5b 7933 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
1da177e4
LT		 7934 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7935 ipr_cmd->done = ipr_reset_ioa_job;
7936 add_timer(&ipr_cmd->timer);
05a6538a 7937 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 7938
7939 LEAVE;
7940 return IPR_RC_JOB_RETURN;
7941}
7942
7943/**
7944 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
7945 * @ipr_cmd: ipr command struct
7946 *
7947 * This function is invoked when an adapter dump has run out
7948 * of processing time.
7949 *
7950 * Return value:
7951 * IPR_RC_JOB_CONTINUE
7952 **/
7953static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
7954{
7955 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7956
7957 if (ioa_cfg->sdt_state == GET_DUMP)
41e9a696
BK		 7958 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7959 else if (ioa_cfg->sdt_state == READ_DUMP)
1da177e4
LT		 7960 ioa_cfg->sdt_state = ABORT_DUMP;
7961
4c647e90 7962 ioa_cfg->dump_timeout = 1;
1da177e4
LT		 7963 ipr_cmd->job_step = ipr_reset_alert;
7964
7965 return IPR_RC_JOB_CONTINUE;
7966}
7967
7968/**
7969 * ipr_unit_check_no_data - Log a unit check/no data error log
7970 * @ioa_cfg: ioa config struct
7971 *
7972 * Logs an error indicating the adapter unit checked, but for some
7973 * reason, we were unable to fetch the unit check buffer.
7974 *
7975 * Return value:
7976 * nothing
7977 **/
7978static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
7979{
7980 ioa_cfg->errors_logged++;
7981 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
7982}
7983
7984/**
7985 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
7986 * @ioa_cfg: ioa config struct
7987 *
7988 * Fetches the unit check buffer from the adapter by clocking the data
7989 * through the mailbox register.
7990 *
7991 * Return value:
7992 * nothing
7993 **/
7994static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
7995{
7996 unsigned long mailbox;
7997 struct ipr_hostrcb *hostrcb;
7998 struct ipr_uc_sdt sdt;
7999 int rc, length;
65f56475 8000 u32 ioasc;
1da177e4
LT		 8001
8002 mailbox = readl(ioa_cfg->ioa_mailbox);
8003
dcbad00e 8004 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
1da177e4
LT		 8005 ipr_unit_check_no_data(ioa_cfg);
8006 return;
8007 }
8008
8009 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
8010 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
8011 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
8012
dcbad00e
WB		 8013 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
8014 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
8015 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 8016 ipr_unit_check_no_data(ioa_cfg);
8017 return;
8018 }
8019
8020 /* Find length of the first sdt entry (UC buffer) */
dcbad00e
WB		 8021 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
8022 length = be32_to_cpu(sdt.entry[0].end_token);
8023 else
8024 length = (be32_to_cpu(sdt.entry[0].end_token) -
8025 be32_to_cpu(sdt.entry[0].start_token)) &
8026 IPR_FMT2_MBX_ADDR_MASK;
1da177e4
LT		 8027
8028 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
8029 struct ipr_hostrcb, queue);
8030 list_del(&hostrcb->queue);
8031 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
8032
8033 rc = ipr_get_ldump_data_section(ioa_cfg,
dcbad00e 8034 be32_to_cpu(sdt.entry[0].start_token),
1da177e4
LT		 8035 (__be32 *)&hostrcb->hcam,
8036 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
8037
65f56475 8038 if (!rc) {
1da177e4 8039 ipr_handle_log_data(ioa_cfg, hostrcb);
4565e370 8040 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
65f56475
BK		 8041 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
8042 ioa_cfg->sdt_state == GET_DUMP)
8043 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8044 } else
1da177e4
LT		 8045 ipr_unit_check_no_data(ioa_cfg);
8046
8047 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
8048}
8049
110def85
WB		 8050/**
8051 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
8052 * @ipr_cmd: ipr command struct
8053 *
8054 * Description: This function will call to get the unit check buffer.
8055 *
8056 * Return value:
8057 * IPR_RC_JOB_RETURN
8058 **/
8059static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
8060{
8061 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8062
8063 ENTER;
8064 ioa_cfg->ioa_unit_checked = 0;
8065 ipr_get_unit_check_buffer(ioa_cfg);
8066 ipr_cmd->job_step = ipr_reset_alert;
8067 ipr_reset_start_timer(ipr_cmd, 0);
8068
8069 LEAVE;
8070 return IPR_RC_JOB_RETURN;
8071}
8072
1da177e4
LT		 8073/**
8074 * ipr_reset_restore_cfg_space - Restore PCI config space.
8075 * @ipr_cmd: ipr command struct
8076 *
8077 * Description: This function restores the saved PCI config space of
8078 * the adapter, fails all outstanding ops back to the callers, and
8079 * fetches the dump/unit check if applicable to this reset.
8080 *
8081 * Return value:
8082 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8083 **/
8084static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
8085{
8086 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
630ad831 8087 u32 int_reg;
1da177e4
LT		 8088
8089 ENTER;
99c965dd 8090 ioa_cfg->pdev->state_saved = true;
1d3c16a8 8091 pci_restore_state(ioa_cfg->pdev);
1da177e4
LT		 8092
8093 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
96d21f00 8094 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
1da177e4
LT		 8095 return IPR_RC_JOB_CONTINUE;
8096 }
8097
8098 ipr_fail_all_ops(ioa_cfg);
8099
8701f185
WB		 8100 if (ioa_cfg->sis64) {
8101 /* Set the adapter to the correct endian mode. */
8102 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8103 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8104 }
8105
1da177e4 8106 if (ioa_cfg->ioa_unit_checked) {
110def85
WB		 8107 if (ioa_cfg->sis64) {
8108 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
8109 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
8110 return IPR_RC_JOB_RETURN;
8111 } else {
8112 ioa_cfg->ioa_unit_checked = 0;
8113 ipr_get_unit_check_buffer(ioa_cfg);
8114 ipr_cmd->job_step = ipr_reset_alert;
8115 ipr_reset_start_timer(ipr_cmd, 0);
8116 return IPR_RC_JOB_RETURN;
8117 }
1da177e4
LT		 8118 }
8119
8120 if (ioa_cfg->in_ioa_bringdown) {
8121 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8122 } else {
8123 ipr_cmd->job_step = ipr_reset_enable_ioa;
8124
8125 if (GET_DUMP == ioa_cfg->sdt_state) {
41e9a696 8126 ioa_cfg->sdt_state = READ_DUMP;
4c647e90 8127 ioa_cfg->dump_timeout = 0;
4d4dd706
KSS		 8128 if (ioa_cfg->sis64)
8129 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
8130 else
8131 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
1da177e4
LT		 8132 ipr_cmd->job_step = ipr_reset_wait_for_dump;
8133 schedule_work(&ioa_cfg->work_q);
8134 return IPR_RC_JOB_RETURN;
8135 }
8136 }
8137
438b0331 8138 LEAVE;
1da177e4
LT		 8139 return IPR_RC_JOB_CONTINUE;
8140}
8141
e619e1a7
BK		 8142/**
8143 * ipr_reset_bist_done - BIST has completed on the adapter.
8144 * @ipr_cmd: ipr command struct
8145 *
8146 * Description: Unblock config space and resume the reset process.
8147 *
8148 * Return value:
8149 * IPR_RC_JOB_CONTINUE
8150 **/
8151static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
8152{
fb51ccbf
JK		 8153 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8154
e619e1a7 8155 ENTER;
fb51ccbf
JK		 8156 if (ioa_cfg->cfg_locked)
8157 pci_cfg_access_unlock(ioa_cfg->pdev);
8158 ioa_cfg->cfg_locked = 0;
e619e1a7
BK		 8159 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
8160 LEAVE;
8161 return IPR_RC_JOB_CONTINUE;
8162}
8163
1da177e4
LT		 8164/**
8165 * ipr_reset_start_bist - Run BIST on the adapter.
8166 * @ipr_cmd: ipr command struct
8167 *
8168 * Description: This function runs BIST on the adapter, then delays 2 seconds.
8169 *
8170 * Return value:
8171 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8172 **/
8173static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
8174{
8175 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
cb237ef7 8176 int rc = PCIBIOS_SUCCESSFUL;
1da177e4
LT		 8177
8178 ENTER;
cb237ef7
WB		 8179 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
8180 writel(IPR_UPROCI_SIS64_START_BIST,
8181 ioa_cfg->regs.set_uproc_interrupt_reg32);
8182 else
8183 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
8184
8185 if (rc == PCIBIOS_SUCCESSFUL) {
e619e1a7 8186 ipr_cmd->job_step = ipr_reset_bist_done;
1da177e4
LT		 8187 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8188 rc = IPR_RC_JOB_RETURN;
cb237ef7 8189 } else {
fb51ccbf
JK		 8190 if (ioa_cfg->cfg_locked)
8191 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
8192 ioa_cfg->cfg_locked = 0;
cb237ef7
WB		 8193 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8194 rc = IPR_RC_JOB_CONTINUE;
1da177e4
LT		 8195 }
8196
8197 LEAVE;
8198 return rc;
8199}
8200
463fc696
BK		 8201/**
8202 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
8203 * @ipr_cmd: ipr command struct
8204 *
8205 * Description: This clears PCI reset to the adapter and delays two seconds.
8206 *
8207 * Return value:
8208 * IPR_RC_JOB_RETURN
8209 **/
8210static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
8211{
8212 ENTER;
8213 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
8214 ipr_cmd->job_step = ipr_reset_bist_done;
8215 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8216 LEAVE;
8217 return IPR_RC_JOB_RETURN;
8218}
8219
8220/**
8221 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
8222 * @ipr_cmd: ipr command struct
8223 *
8224 * Description: This asserts PCI reset to the adapter.
8225 *
8226 * Return value:
8227 * IPR_RC_JOB_RETURN
8228 **/
8229static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
8230{
8231 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8232 struct pci_dev *pdev = ioa_cfg->pdev;
8233
8234 ENTER;
463fc696
BK		 8235 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
8236 ipr_cmd->job_step = ipr_reset_slot_reset_done;
8237 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
8238 LEAVE;
8239 return IPR_RC_JOB_RETURN;
8240}
8241
fb51ccbf
JK		 8242/**
8243 * ipr_reset_block_config_access_wait - Wait for permission to block config access
8244 * @ipr_cmd: ipr command struct
8245 *
8246 * Description: This attempts to block config access to the IOA.
8247 *
8248 * Return value:
8249 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8250 **/
8251static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
8252{
8253 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8254 int rc = IPR_RC_JOB_CONTINUE;
8255
8256 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
8257 ioa_cfg->cfg_locked = 1;
8258 ipr_cmd->job_step = ioa_cfg->reset;
8259 } else {
8260 if (ipr_cmd->u.time_left) {
8261 rc = IPR_RC_JOB_RETURN;
8262 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8263 ipr_reset_start_timer(ipr_cmd,
8264 IPR_CHECK_FOR_RESET_TIMEOUT);
8265 } else {
8266 ipr_cmd->job_step = ioa_cfg->reset;
8267 dev_err(&ioa_cfg->pdev->dev,
8268 "Timed out waiting to lock config access. Resetting anyway.\n");
8269 }
8270 }
8271
8272 return rc;
8273}
8274
8275/**
8276 * ipr_reset_block_config_access - Block config access to the IOA
8277 * @ipr_cmd: ipr command struct
8278 *
8279 * Description: This attempts to block config access to the IOA
8280 *
8281 * Return value:
8282 * IPR_RC_JOB_CONTINUE
8283 **/
8284static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
8285{
8286 ipr_cmd->ioa_cfg->cfg_locked = 0;
8287 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
8288 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8289 return IPR_RC_JOB_CONTINUE;
8290}
8291
1da177e4
LT		 8292/**
8293 * ipr_reset_allowed - Query whether or not IOA can be reset
8294 * @ioa_cfg: ioa config struct
8295 *
8296 * Return value:
8297 * 0 if reset not allowed / non-zero if reset is allowed
8298 **/
8299static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
8300{
8301 volatile u32 temp_reg;
8302
8303 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8304 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
8305}
8306
8307/**
8308 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
8309 * @ipr_cmd: ipr command struct
8310 *
8311 * Description: This function waits for adapter permission to run BIST,
8312 * then runs BIST. If the adapter does not give permission after a
8313 * reasonable time, we will reset the adapter anyway. The impact of
8314 * resetting the adapter without warning the adapter is the risk of
8315 * losing the persistent error log on the adapter. If the adapter is
8316 * reset while it is writing to the flash on the adapter, the flash
8317 * segment will have bad ECC and be zeroed.
8318 *
8319 * Return value:
8320 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8321 **/
8322static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
8323{
8324 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8325 int rc = IPR_RC_JOB_RETURN;
8326
8327 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
8328 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8329 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8330 } else {
fb51ccbf 8331 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 8332 rc = IPR_RC_JOB_CONTINUE;
8333 }
8334
8335 return rc;
8336}
8337
8338/**
8701f185 8339 * ipr_reset_alert - Alert the adapter of a pending reset
1da177e4
LT		 8340 * @ipr_cmd: ipr command struct
8341 *
8342 * Description: This function alerts the adapter that it will be reset.
8343 * If memory space is not currently enabled, proceed directly
8344 * to running BIST on the adapter. The timer must always be started
8345 * so we guarantee we do not run BIST from ipr_isr.
8346 *
8347 * Return value:
8348 * IPR_RC_JOB_RETURN
8349 **/
8350static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
8351{
8352 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8353 u16 cmd_reg;
8354 int rc;
8355
8356 ENTER;
8357 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
8358
8359 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
8360 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
214777ba 8361 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 8362 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
8363 } else {
fb51ccbf 8364 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 8365 }
8366
8367 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8368 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8369
8370 LEAVE;
8371 return IPR_RC_JOB_RETURN;
8372}
8373
8374/**
8375 * ipr_reset_ucode_download_done - Microcode download completion
8376 * @ipr_cmd: ipr command struct
8377 *
8378 * Description: This function unmaps the microcode download buffer.
8379 *
8380 * Return value:
8381 * IPR_RC_JOB_CONTINUE
8382 **/
8383static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
8384{
8385 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8386 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8387
8388 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
8389 sglist->num_sg, DMA_TO_DEVICE);
8390
8391 ipr_cmd->job_step = ipr_reset_alert;
8392 return IPR_RC_JOB_CONTINUE;
8393}
8394
8395/**
8396 * ipr_reset_ucode_download - Download microcode to the adapter
8397 * @ipr_cmd: ipr command struct
8398 *
8399 * Description: This function checks to see if it there is microcode
8400 * to download to the adapter. If there is, a download is performed.
8401 *
8402 * Return value:
8403 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8404 **/
8405static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
8406{
8407 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8408 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8409
8410 ENTER;
8411 ipr_cmd->job_step = ipr_reset_alert;
8412
8413 if (!sglist)
8414 return IPR_RC_JOB_CONTINUE;
8415
8416 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8417 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
8418 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
8419 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
8420 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
8421 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
8422 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
8423
a32c055f
WB		 8424 if (ioa_cfg->sis64)
8425 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
8426 else
8427 ipr_build_ucode_ioadl(ipr_cmd, sglist);
1da177e4
LT		 8428 ipr_cmd->job_step = ipr_reset_ucode_download_done;
8429
8430 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8431 IPR_WRITE_BUFFER_TIMEOUT);
8432
8433 LEAVE;
8434 return IPR_RC_JOB_RETURN;
8435}
8436
8437/**
8438 * ipr_reset_shutdown_ioa - Shutdown the adapter
8439 * @ipr_cmd: ipr command struct
8440 *
8441 * Description: This function issues an adapter shutdown of the
8442 * specified type to the specified adapter as part of the
8443 * adapter reset job.
8444 *
8445 * Return value:
8446 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8447 **/
8448static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
8449{
8450 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8451 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
8452 unsigned long timeout;
8453 int rc = IPR_RC_JOB_CONTINUE;
8454
8455 ENTER;
56d6aa33 8456 if (shutdown_type != IPR_SHUTDOWN_NONE &&
8457 !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
1da177e4
LT		 8458 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8459 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8460 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
8461 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
8462
ac09c349
BK		 8463 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
8464 timeout = IPR_SHUTDOWN_TIMEOUT;
1da177e4
LT		 8465 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
8466 timeout = IPR_INTERNAL_TIMEOUT;
ac09c349
BK		 8467 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
8468 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
1da177e4 8469 else
ac09c349 8470 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
1da177e4
LT		 8471
8472 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
8473
8474 rc = IPR_RC_JOB_RETURN;
8475 ipr_cmd->job_step = ipr_reset_ucode_download;
8476 } else
8477 ipr_cmd->job_step = ipr_reset_alert;
8478
8479 LEAVE;
8480 return rc;
8481}
8482
8483/**
8484 * ipr_reset_ioa_job - Adapter reset job
8485 * @ipr_cmd: ipr command struct
8486 *
8487 * Description: This function is the job router for the adapter reset job.
8488 *
8489 * Return value:
8490 * none
8491 **/
8492static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
8493{
8494 u32 rc, ioasc;
1da177e4
LT		 8495 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8496
8497 do {
96d21f00 8498 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 8499
8500 if (ioa_cfg->reset_cmd != ipr_cmd) {
8501 /*
8502 * We are doing nested adapter resets and this is
8503 * not the current reset job.
8504 */
05a6538a 8505 list_add_tail(&ipr_cmd->queue,
8506 &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 8507 return;
8508 }
8509
8510 if (IPR_IOASC_SENSE_KEY(ioasc)) {
dfed823e
BK		 8511 rc = ipr_cmd->job_step_failed(ipr_cmd);
8512 if (rc == IPR_RC_JOB_RETURN)
8513 return;
1da177e4
LT		 8514 }
8515
8516 ipr_reinit_ipr_cmnd(ipr_cmd);
dfed823e 8517 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
1da177e4 8518 rc = ipr_cmd->job_step(ipr_cmd);
203fa3fe 8519 } while (rc == IPR_RC_JOB_CONTINUE);
1da177e4
LT		 8520}
8521
8522/**
8523 * _ipr_initiate_ioa_reset - Initiate an adapter reset
8524 * @ioa_cfg: ioa config struct
8525 * @job_step: first job step of reset job
8526 * @shutdown_type: shutdown type
8527 *
8528 * Description: This function will initiate the reset of the given adapter
8529 * starting at the selected job step.
8530 * If the caller needs to wait on the completion of the reset,
8531 * the caller must sleep on the reset_wait_q.
8532 *
8533 * Return value:
8534 * none
8535 **/
8536static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8537 int (*job_step) (struct ipr_cmnd *),
8538 enum ipr_shutdown_type shutdown_type)
8539{
8540 struct ipr_cmnd *ipr_cmd;
56d6aa33 8541 int i;
1da177e4
LT		 8542
8543 ioa_cfg->in_reset_reload = 1;
56d6aa33 8544 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8545 spin_lock(&ioa_cfg->hrrq[i]._lock);
8546 ioa_cfg->hrrq[i].allow_cmds = 0;
8547 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8548 }
8549 wmb();
bfae7820
BK		 8550 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa)
8551 scsi_block_requests(ioa_cfg->host);
1da177e4
LT		 8552
8553 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
8554 ioa_cfg->reset_cmd = ipr_cmd;
8555 ipr_cmd->job_step = job_step;
8556 ipr_cmd->u.shutdown_type = shutdown_type;
8557
8558 ipr_reset_ioa_job(ipr_cmd);
8559}
8560
8561/**
8562 * ipr_initiate_ioa_reset - Initiate an adapter reset
8563 * @ioa_cfg: ioa config struct
8564 * @shutdown_type: shutdown type
8565 *
8566 * Description: This function will initiate the reset of the given adapter.
8567 * If the caller needs to wait on the completion of the reset,
8568 * the caller must sleep on the reset_wait_q.
8569 *
8570 * Return value:
8571 * none
8572 **/
8573static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8574 enum ipr_shutdown_type shutdown_type)
8575{
56d6aa33 8576 int i;
8577
8578 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
1da177e4
LT		 8579 return;
8580
41e9a696
BK		 8581 if (ioa_cfg->in_reset_reload) {
8582 if (ioa_cfg->sdt_state == GET_DUMP)
8583 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8584 else if (ioa_cfg->sdt_state == READ_DUMP)
8585 ioa_cfg->sdt_state = ABORT_DUMP;
8586 }
1da177e4
LT		 8587
8588 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
8589 dev_err(&ioa_cfg->pdev->dev,
8590 "IOA taken offline - error recovery failed\n");
8591
8592 ioa_cfg->reset_retries = 0;
56d6aa33 8593 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8594 spin_lock(&ioa_cfg->hrrq[i]._lock);
8595 ioa_cfg->hrrq[i].ioa_is_dead = 1;
8596 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8597 }
8598 wmb();
1da177e4
LT		 8599
8600 if (ioa_cfg->in_ioa_bringdown) {
8601 ioa_cfg->reset_cmd = NULL;
8602 ioa_cfg->in_reset_reload = 0;
8603 ipr_fail_all_ops(ioa_cfg);
8604 wake_up_all(&ioa_cfg->reset_wait_q);
8605
bfae7820
BK		 8606 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
8607 spin_unlock_irq(ioa_cfg->host->host_lock);
8608 scsi_unblock_requests(ioa_cfg->host);
8609 spin_lock_irq(ioa_cfg->host->host_lock);
8610 }
1da177e4
LT		 8611 return;
8612 } else {
8613 ioa_cfg->in_ioa_bringdown = 1;
8614 shutdown_type = IPR_SHUTDOWN_NONE;
8615 }
8616 }
8617
8618 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
8619 shutdown_type);
8620}
8621
f8a88b19
LV		 8622/**
8623 * ipr_reset_freeze - Hold off all I/O activity
8624 * @ipr_cmd: ipr command struct
8625 *
8626 * Description: If the PCI slot is frozen, hold off all I/O
8627 * activity; then, as soon as the slot is available again,
8628 * initiate an adapter reset.
8629 */
8630static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
8631{
56d6aa33 8632 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8633 int i;
8634
f8a88b19 8635 /* Disallow new interrupts, avoid loop */
56d6aa33 8636 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8637 spin_lock(&ioa_cfg->hrrq[i]._lock);
8638 ioa_cfg->hrrq[i].allow_interrupts = 0;
8639 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8640 }
8641 wmb();
05a6538a 8642 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
f8a88b19
LV		 8643 ipr_cmd->done = ipr_reset_ioa_job;
8644 return IPR_RC_JOB_RETURN;
8645}
8646
6270e593
BK		 8647/**
8648 * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled
8649 * @pdev: PCI device struct
8650 *
8651 * Description: This routine is called to tell us that the MMIO
8652 * access to the IOA has been restored
8653 */
8654static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev)
8655{
8656 unsigned long flags = 0;
8657 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8658
8659 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8660 if (!ioa_cfg->probe_done)
8661 pci_save_state(pdev);
8662 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8663 return PCI_ERS_RESULT_NEED_RESET;
8664}
8665
f8a88b19
LV		 8666/**
8667 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
8668 * @pdev: PCI device struct
8669 *
8670 * Description: This routine is called to tell us that the PCI bus
8671 * is down. Can't do anything here, except put the device driver
8672 * into a holding pattern, waiting for the PCI bus to come back.
8673 */
8674static void ipr_pci_frozen(struct pci_dev *pdev)
8675{
8676 unsigned long flags = 0;
8677 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8678
8679 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 8680 if (ioa_cfg->probe_done)
8681 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
f8a88b19
LV		 8682 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8683}
8684
8685/**
8686 * ipr_pci_slot_reset - Called when PCI slot has been reset.
8687 * @pdev: PCI device struct
8688 *
8689 * Description: This routine is called by the pci error recovery
8690 * code after the PCI slot has been reset, just before we
8691 * should resume normal operations.
8692 */
8693static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
8694{
8695 unsigned long flags = 0;
8696 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8697
8698 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 8699 if (ioa_cfg->probe_done) {
8700 if (ioa_cfg->needs_warm_reset)
8701 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8702 else
8703 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
8704 IPR_SHUTDOWN_NONE);
8705 } else
8706 wake_up_all(&ioa_cfg->eeh_wait_q);
f8a88b19
LV		 8707 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8708 return PCI_ERS_RESULT_RECOVERED;
8709}
8710
8711/**
8712 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
8713 * @pdev: PCI device struct
8714 *
8715 * Description: This routine is called when the PCI bus has
8716 * permanently failed.
8717 */
8718static void ipr_pci_perm_failure(struct pci_dev *pdev)
8719{
8720 unsigned long flags = 0;
8721 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
56d6aa33 8722 int i;
f8a88b19
LV		 8723
8724 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 8725 if (ioa_cfg->probe_done) {
8726 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8727 ioa_cfg->sdt_state = ABORT_DUMP;
8728 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1;
8729 ioa_cfg->in_ioa_bringdown = 1;
8730 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8731 spin_lock(&ioa_cfg->hrrq[i]._lock);
8732 ioa_cfg->hrrq[i].allow_cmds = 0;
8733 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8734 }
8735 wmb();
8736 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8737 } else
8738 wake_up_all(&ioa_cfg->eeh_wait_q);
f8a88b19
LV		 8739 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8740}
8741
8742/**
8743 * ipr_pci_error_detected - Called when a PCI error is detected.
8744 * @pdev: PCI device struct
8745 * @state: PCI channel state
8746 *
8747 * Description: Called when a PCI error is detected.
8748 *
8749 * Return value:
8750 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
8751 */
8752static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
8753 pci_channel_state_t state)
8754{
8755 switch (state) {
8756 case pci_channel_io_frozen:
8757 ipr_pci_frozen(pdev);
6270e593 8758 return PCI_ERS_RESULT_CAN_RECOVER;
f8a88b19
LV		 8759 case pci_channel_io_perm_failure:
8760 ipr_pci_perm_failure(pdev);
8761 return PCI_ERS_RESULT_DISCONNECT;
8762 break;
8763 default:
8764 break;
8765 }
8766 return PCI_ERS_RESULT_NEED_RESET;
8767}
8768
1da177e4
LT		 8769/**
8770 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
8771 * @ioa_cfg: ioa cfg struct
8772 *
8773 * Description: This is the second phase of adapter intialization
8774 * This function takes care of initilizing the adapter to the point
8775 * where it can accept new commands.
8776
8777 * Return value:
b1c11812 8778 * 0 on success / -EIO on failure
1da177e4 8779 **/
6f039790 8780static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 8781{
8782 int rc = 0;
8783 unsigned long host_lock_flags = 0;
8784
8785 ENTER;
8786 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8787 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
6270e593 8788 ioa_cfg->probe_done = 1;
ce155cce
BK		 8789 if (ioa_cfg->needs_hard_reset) {
8790 ioa_cfg->needs_hard_reset = 0;
8791 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8792 } else
8793 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
8794 IPR_SHUTDOWN_NONE);
1da177e4
LT		 8795 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8796 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8797 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8798
56d6aa33 8799 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
1da177e4
LT		 8800 rc = -EIO;
8801 } else if (ipr_invalid_adapter(ioa_cfg)) {
8802 if (!ipr_testmode)
8803 rc = -EIO;
8804
8805 dev_err(&ioa_cfg->pdev->dev,
8806 "Adapter not supported in this hardware configuration.\n");
8807 }
8808
8809 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8810
8811 LEAVE;
8812 return rc;
8813}
8814
8815/**
8816 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
8817 * @ioa_cfg: ioa config struct
8818 *
8819 * Return value:
8820 * none
8821 **/
8822static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8823{
8824 int i;
8825
8826 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8827 if (ioa_cfg->ipr_cmnd_list[i])
8828 pci_pool_free(ioa_cfg->ipr_cmd_pool,
8829 ioa_cfg->ipr_cmnd_list[i],
8830 ioa_cfg->ipr_cmnd_list_dma[i]);
8831
8832 ioa_cfg->ipr_cmnd_list[i] = NULL;
8833 }
8834
8835 if (ioa_cfg->ipr_cmd_pool)
203fa3fe 8836 pci_pool_destroy(ioa_cfg->ipr_cmd_pool);
1da177e4 8837
89aad428
BK		 8838 kfree(ioa_cfg->ipr_cmnd_list);
8839 kfree(ioa_cfg->ipr_cmnd_list_dma);
8840 ioa_cfg->ipr_cmnd_list = NULL;
8841 ioa_cfg->ipr_cmnd_list_dma = NULL;
1da177e4
LT		 8842 ioa_cfg->ipr_cmd_pool = NULL;
8843}
8844
8845/**
8846 * ipr_free_mem - Frees memory allocated for an adapter
8847 * @ioa_cfg: ioa cfg struct
8848 *
8849 * Return value:
8850 * nothing
8851 **/
8852static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
8853{
8854 int i;
8855
8856 kfree(ioa_cfg->res_entries);
8857 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
8858 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8859 ipr_free_cmd_blks(ioa_cfg);
05a6538a 8860
8861 for (i = 0; i < ioa_cfg->hrrq_num; i++)
8862 pci_free_consistent(ioa_cfg->pdev,
8863 sizeof(u32) * ioa_cfg->hrrq[i].size,
8864 ioa_cfg->hrrq[i].host_rrq,
8865 ioa_cfg->hrrq[i].host_rrq_dma);
8866
3e7ebdfa
WB		 8867 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size,
8868 ioa_cfg->u.cfg_table,
1da177e4
LT		 8869 ioa_cfg->cfg_table_dma);
8870
8871 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8872 pci_free_consistent(ioa_cfg->pdev,
8873 sizeof(struct ipr_hostrcb),
8874 ioa_cfg->hostrcb[i],
8875 ioa_cfg->hostrcb_dma[i]);
8876 }
8877
8878 ipr_free_dump(ioa_cfg);
1da177e4
LT		 8879 kfree(ioa_cfg->trace);
8880}
8881
8882/**
8883 * ipr_free_all_resources - Free all allocated resources for an adapter.
8884 * @ipr_cmd: ipr command struct
8885 *
8886 * This function frees all allocated resources for the
8887 * specified adapter.
8888 *
8889 * Return value:
8890 * none
8891 **/
8892static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
8893{
8894 struct pci_dev *pdev = ioa_cfg->pdev;
8895
8896 ENTER;
05a6538a 8897 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
8898 ioa_cfg->intr_flag == IPR_USE_MSIX) {
8899 int i;
8900 for (i = 0; i < ioa_cfg->nvectors; i++)
8901 free_irq(ioa_cfg->vectors_info[i].vec,
8902 &ioa_cfg->hrrq[i]);
8903 } else
8904 free_irq(pdev->irq, &ioa_cfg->hrrq[0]);
8905
56d6aa33 8906 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
05a6538a 8907 pci_disable_msi(pdev);
56d6aa33 8908 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
8909 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
05a6538a 8910 pci_disable_msix(pdev);
56d6aa33 8911 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
8912 }
05a6538a 8913
1da177e4
LT		 8914 iounmap(ioa_cfg->hdw_dma_regs);
8915 pci_release_regions(pdev);
8916 ipr_free_mem(ioa_cfg);
8917 scsi_host_put(ioa_cfg->host);
8918 pci_disable_device(pdev);
8919 LEAVE;
8920}
8921
8922/**
8923 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
8924 * @ioa_cfg: ioa config struct
8925 *
8926 * Return value:
8927 * 0 on success / -ENOMEM on allocation failure
8928 **/
6f039790 8929static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 8930{
8931 struct ipr_cmnd *ipr_cmd;
8932 struct ipr_ioarcb *ioarcb;
8933 dma_addr_t dma_addr;
05a6538a 8934 int i, entries_each_hrrq, hrrq_id = 0;
1da177e4 8935
203fa3fe
KSS		 8936 ioa_cfg->ipr_cmd_pool = pci_pool_create(IPR_NAME, ioa_cfg->pdev,
8937 sizeof(struct ipr_cmnd), 512, 0);
1da177e4
LT		 8938
8939 if (!ioa_cfg->ipr_cmd_pool)
8940 return -ENOMEM;
8941
89aad428
BK		 8942 ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL);
8943 ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL);
8944
8945 if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) {
8946 ipr_free_cmd_blks(ioa_cfg);
8947 return -ENOMEM;
8948 }
8949
05a6538a 8950 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8951 if (ioa_cfg->hrrq_num > 1) {
8952 if (i == 0) {
8953 entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS;
8954 ioa_cfg->hrrq[i].min_cmd_id = 0;
8955 ioa_cfg->hrrq[i].max_cmd_id =
8956 (entries_each_hrrq - 1);
8957 } else {
8958 entries_each_hrrq =
8959 IPR_NUM_BASE_CMD_BLKS/
8960 (ioa_cfg->hrrq_num - 1);
8961 ioa_cfg->hrrq[i].min_cmd_id =
8962 IPR_NUM_INTERNAL_CMD_BLKS +
8963 (i - 1) * entries_each_hrrq;
8964 ioa_cfg->hrrq[i].max_cmd_id =
8965 (IPR_NUM_INTERNAL_CMD_BLKS +
8966 i * entries_each_hrrq - 1);
8967 }
8968 } else {
8969 entries_each_hrrq = IPR_NUM_CMD_BLKS;
8970 ioa_cfg->hrrq[i].min_cmd_id = 0;
8971 ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1);
8972 }
8973 ioa_cfg->hrrq[i].size = entries_each_hrrq;
8974 }
8975
8976 BUG_ON(ioa_cfg->hrrq_num == 0);
8977
8978 i = IPR_NUM_CMD_BLKS -
8979 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1;
8980 if (i > 0) {
8981 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i;
8982 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i;
8983 }
8984
1da177e4 8985 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
203fa3fe 8986 ipr_cmd = pci_pool_alloc(ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
1da177e4
LT		 8987
8988 if (!ipr_cmd) {
8989 ipr_free_cmd_blks(ioa_cfg);
8990 return -ENOMEM;
8991 }
8992
8993 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
8994 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
8995 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
8996
8997 ioarcb = &ipr_cmd->ioarcb;
a32c055f
WB		 8998 ipr_cmd->dma_addr = dma_addr;
8999 if (ioa_cfg->sis64)
9000 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
9001 else
9002 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
9003
1da177e4 9004 ioarcb->host_response_handle = cpu_to_be32(i << 2);
a32c055f
WB		 9005 if (ioa_cfg->sis64) {
9006 ioarcb->u.sis64_addr_data.data_ioadl_addr =
9007 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
9008 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
96d21f00 9009 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
a32c055f
WB		 9010 } else {
9011 ioarcb->write_ioadl_addr =
9012 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
9013 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
9014 ioarcb->ioasa_host_pci_addr =
96d21f00 9015 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
a32c055f 9016 }
1da177e4
LT		 9017 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
9018 ipr_cmd->cmd_index = i;
9019 ipr_cmd->ioa_cfg = ioa_cfg;
9020 ipr_cmd->sense_buffer_dma = dma_addr +
9021 offsetof(struct ipr_cmnd, sense_buffer);
9022
05a6538a 9023 ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id;
9024 ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id];
9025 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
9026 if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id)
9027 hrrq_id++;
1da177e4
LT		 9028 }
9029
9030 return 0;
9031}
9032
9033/**
9034 * ipr_alloc_mem - Allocate memory for an adapter
9035 * @ioa_cfg: ioa config struct
9036 *
9037 * Return value:
9038 * 0 on success / non-zero for error
9039 **/
6f039790 9040static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9041{
9042 struct pci_dev *pdev = ioa_cfg->pdev;
9043 int i, rc = -ENOMEM;
9044
9045 ENTER;
0bc42e35 9046 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
3e7ebdfa 9047 ioa_cfg->max_devs_supported, GFP_KERNEL);
1da177e4
LT		 9048
9049 if (!ioa_cfg->res_entries)
9050 goto out;
9051
3e7ebdfa 9052 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
1da177e4 9053 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
3e7ebdfa
WB		 9054 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
9055 }
1da177e4
LT		 9056
9057 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
9058 sizeof(struct ipr_misc_cbs),
9059 &ioa_cfg->vpd_cbs_dma);
9060
9061 if (!ioa_cfg->vpd_cbs)
9062 goto out_free_res_entries;
9063
9064 if (ipr_alloc_cmd_blks(ioa_cfg))
9065 goto out_free_vpd_cbs;
9066
05a6538a 9067 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9068 ioa_cfg->hrrq[i].host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
9069 sizeof(u32) * ioa_cfg->hrrq[i].size,
9070 &ioa_cfg->hrrq[i].host_rrq_dma);
9071
9072 if (!ioa_cfg->hrrq[i].host_rrq) {
9073 while (--i > 0)
9074 pci_free_consistent(pdev,
9075 sizeof(u32) * ioa_cfg->hrrq[i].size,
9076 ioa_cfg->hrrq[i].host_rrq,
9077 ioa_cfg->hrrq[i].host_rrq_dma);
9078 goto out_ipr_free_cmd_blocks;
9079 }
9080 ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg;
9081 }
1da177e4 9082
3e7ebdfa
WB		 9083 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
9084 ioa_cfg->cfg_table_size,
9085 &ioa_cfg->cfg_table_dma);
1da177e4 9086
3e7ebdfa 9087 if (!ioa_cfg->u.cfg_table)
1da177e4
LT		 9088 goto out_free_host_rrq;
9089
9090 for (i = 0; i < IPR_NUM_HCAMS; i++) {
9091 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
9092 sizeof(struct ipr_hostrcb),
9093 &ioa_cfg->hostrcb_dma[i]);
9094
9095 if (!ioa_cfg->hostrcb[i])
9096 goto out_free_hostrcb_dma;
9097
9098 ioa_cfg->hostrcb[i]->hostrcb_dma =
9099 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
49dc6a18 9100 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
1da177e4
LT		 9101 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
9102 }
9103
0bc42e35 9104 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
1da177e4
LT		 9105 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
9106
9107 if (!ioa_cfg->trace)
9108 goto out_free_hostrcb_dma;
9109
1da177e4
LT		 9110 rc = 0;
9111out:
9112 LEAVE;
9113 return rc;
9114
9115out_free_hostrcb_dma:
9116 while (i-- > 0) {
9117 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
9118 ioa_cfg->hostrcb[i],
9119 ioa_cfg->hostrcb_dma[i]);
9120 }
3e7ebdfa
WB		 9121 pci_free_consistent(pdev, ioa_cfg->cfg_table_size,
9122 ioa_cfg->u.cfg_table,
9123 ioa_cfg->cfg_table_dma);
1da177e4 9124out_free_host_rrq:
05a6538a 9125 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9126 pci_free_consistent(pdev,
9127 sizeof(u32) * ioa_cfg->hrrq[i].size,
9128 ioa_cfg->hrrq[i].host_rrq,
9129 ioa_cfg->hrrq[i].host_rrq_dma);
9130 }
1da177e4
LT		 9131out_ipr_free_cmd_blocks:
9132 ipr_free_cmd_blks(ioa_cfg);
9133out_free_vpd_cbs:
9134 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
9135 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
9136out_free_res_entries:
9137 kfree(ioa_cfg->res_entries);
9138 goto out;
9139}
9140
9141/**
9142 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
9143 * @ioa_cfg: ioa config struct
9144 *
9145 * Return value:
9146 * none
9147 **/
6f039790 9148static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9149{
9150 int i;
9151
9152 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
9153 ioa_cfg->bus_attr[i].bus = i;
9154 ioa_cfg->bus_attr[i].qas_enabled = 0;
9155 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
9156 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
9157 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
9158 else
9159 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
9160 }
9161}
9162
6270e593
BK		 9163/**
9164 * ipr_init_regs - Initialize IOA registers
9165 * @ioa_cfg: ioa config struct
9166 *
9167 * Return value:
9168 * none
9169 **/
9170static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg)
9171{
9172 const struct ipr_interrupt_offsets *p;
9173 struct ipr_interrupts *t;
9174 void __iomem *base;
9175
9176 p = &ioa_cfg->chip_cfg->regs;
9177 t = &ioa_cfg->regs;
9178 base = ioa_cfg->hdw_dma_regs;
9179
9180 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
9181 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
9182 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
9183 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
9184 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
9185 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
9186 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
9187 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
9188 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
9189 t->ioarrin_reg = base + p->ioarrin_reg;
9190 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
9191 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
9192 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
9193 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
9194 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
9195 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
9196
9197 if (ioa_cfg->sis64) {
9198 t->init_feedback_reg = base + p->init_feedback_reg;
9199 t->dump_addr_reg = base + p->dump_addr_reg;
9200 t->dump_data_reg = base + p->dump_data_reg;
9201 t->endian_swap_reg = base + p->endian_swap_reg;
9202 }
9203}
9204
1da177e4
LT		 9205/**
9206 * ipr_init_ioa_cfg - Initialize IOA config struct
9207 * @ioa_cfg: ioa config struct
9208 * @host: scsi host struct
9209 * @pdev: PCI dev struct
9210 *
9211 * Return value:
9212 * none
9213 **/
6f039790
GKH		 9214static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
9215 struct Scsi_Host *host, struct pci_dev *pdev)
1da177e4 9216{
6270e593 9217 int i;
1da177e4
LT		 9218
9219 ioa_cfg->host = host;
9220 ioa_cfg->pdev = pdev;
9221 ioa_cfg->log_level = ipr_log_level;
3d1d0da6 9222 ioa_cfg->doorbell = IPR_DOORBELL;
1da177e4
LT		 9223 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
9224 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
1da177e4
LT		 9225 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
9226 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
9227 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
9228 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
9229
1da177e4
LT		 9230 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
9231 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
9232 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
9233 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
c4028958 9234 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
1da177e4 9235 init_waitqueue_head(&ioa_cfg->reset_wait_q);
95fecd90 9236 init_waitqueue_head(&ioa_cfg->msi_wait_q);
6270e593 9237 init_waitqueue_head(&ioa_cfg->eeh_wait_q);
1da177e4
LT		 9238 ioa_cfg->sdt_state = INACTIVE;
9239
9240 ipr_initialize_bus_attr(ioa_cfg);
3e7ebdfa 9241 ioa_cfg->max_devs_supported = ipr_max_devs;
1da177e4 9242
3e7ebdfa
WB		 9243 if (ioa_cfg->sis64) {
9244 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
9245 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
9246 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
9247 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
6270e593
BK		 9248 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
9249 + ((sizeof(struct ipr_config_table_entry64)
9250 * ioa_cfg->max_devs_supported)));
3e7ebdfa
WB		 9251 } else {
9252 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
9253 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
9254 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
9255 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
6270e593
BK		 9256 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
9257 + ((sizeof(struct ipr_config_table_entry)
9258 * ioa_cfg->max_devs_supported)));
3e7ebdfa 9259 }
6270e593 9260
1da177e4
LT		 9261 host->max_channel = IPR_MAX_BUS_TO_SCAN;
9262 host->unique_id = host->host_no;
9263 host->max_cmd_len = IPR_MAX_CDB_LEN;
89aad428 9264 host->can_queue = ioa_cfg->max_cmds;
1da177e4
LT		 9265 pci_set_drvdata(pdev, ioa_cfg);
9266
6270e593
BK		 9267 for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) {
9268 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q);
9269 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q);
9270 spin_lock_init(&ioa_cfg->hrrq[i]._lock);
9271 if (i == 0)
9272 ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock;
9273 else
9274 ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock;
dcbad00e 9275 }
1da177e4
LT		 9276}
9277
9278/**
1be7bd82 9279 * ipr_get_chip_info - Find adapter chip information
1da177e4
LT		 9280 * @dev_id: PCI device id struct
9281 *
9282 * Return value:
1be7bd82 9283 * ptr to chip information on success / NULL on failure
1da177e4 9284 **/
6f039790 9285static const struct ipr_chip_t *
1be7bd82 9286ipr_get_chip_info(const struct pci_device_id *dev_id)
1da177e4
LT		 9287{
9288 int i;
9289
1da177e4
LT		 9290 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
9291 if (ipr_chip[i].vendor == dev_id->vendor &&
9292 ipr_chip[i].device == dev_id->device)
1be7bd82 9293 return &ipr_chip[i];
1da177e4
LT		 9294 return NULL;
9295}
9296
6270e593
BK		 9297/**
9298 * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete
9299 * during probe time
9300 * @ioa_cfg: ioa config struct
9301 *
9302 * Return value:
9303 * None
9304 **/
9305static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg)
9306{
9307 struct pci_dev *pdev = ioa_cfg->pdev;
9308
9309 if (pci_channel_offline(pdev)) {
9310 wait_event_timeout(ioa_cfg->eeh_wait_q,
9311 !pci_channel_offline(pdev),
9312 IPR_PCI_ERROR_RECOVERY_TIMEOUT);
9313 pci_restore_state(pdev);
9314 }
9315}
9316
05a6538a 9317static int ipr_enable_msix(struct ipr_ioa_cfg *ioa_cfg)
9318{
9319 struct msix_entry entries[IPR_MAX_MSIX_VECTORS];
9320 int i, err, vectors;
9321
9322 for (i = 0; i < ARRAY_SIZE(entries); ++i)
9323 entries[i].entry = i;
9324
9325 vectors = ipr_number_of_msix;
9326
9327 while ((err = pci_enable_msix(ioa_cfg->pdev, entries, vectors)) > 0)
9328 vectors = err;
9329
9330 if (err < 0) {
6270e593 9331 ipr_wait_for_pci_err_recovery(ioa_cfg);
05a6538a 9332 return err;
9333 }
9334
9335 if (!err) {
9336 for (i = 0; i < vectors; i++)
9337 ioa_cfg->vectors_info[i].vec = entries[i].vector;
9338 ioa_cfg->nvectors = vectors;
9339 }
9340
9341 return err;
9342}
9343
9344static int ipr_enable_msi(struct ipr_ioa_cfg *ioa_cfg)
9345{
9346 int i, err, vectors;
9347
9348 vectors = ipr_number_of_msix;
9349
9350 while ((err = pci_enable_msi_block(ioa_cfg->pdev, vectors)) > 0)
9351 vectors = err;
9352
9353 if (err < 0) {
6270e593 9354 ipr_wait_for_pci_err_recovery(ioa_cfg);
05a6538a 9355 return err;
9356 }
9357
9358 if (!err) {
9359 for (i = 0; i < vectors; i++)
9360 ioa_cfg->vectors_info[i].vec = ioa_cfg->pdev->irq + i;
9361 ioa_cfg->nvectors = vectors;
9362 }
9363
9364 return err;
9365}
9366
9367static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg)
9368{
9369 int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1;
9370
9371 for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) {
9372 snprintf(ioa_cfg->vectors_info[vec_idx].desc, n,
9373 "host%d-%d", ioa_cfg->host->host_no, vec_idx);
9374 ioa_cfg->vectors_info[vec_idx].
9375 desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0;
9376 }
9377}
9378
9379static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg)
9380{
9381 int i, rc;
9382
9383 for (i = 1; i < ioa_cfg->nvectors; i++) {
9384 rc = request_irq(ioa_cfg->vectors_info[i].vec,
9385 ipr_isr_mhrrq,
9386 0,
9387 ioa_cfg->vectors_info[i].desc,
9388 &ioa_cfg->hrrq[i]);
9389 if (rc) {
9390 while (--i >= 0)
9391 free_irq(ioa_cfg->vectors_info[i].vec,
9392 &ioa_cfg->hrrq[i]);
9393 return rc;
9394 }
9395 }
9396 return 0;
9397}
9398
95fecd90
WB		 9399/**
9400 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
9401 * @pdev: PCI device struct
9402 *
9403 * Description: Simply set the msi_received flag to 1 indicating that
9404 * Message Signaled Interrupts are supported.
9405 *
9406 * Return value:
9407 * 0 on success / non-zero on failure
9408 **/
6f039790 9409static irqreturn_t ipr_test_intr(int irq, void *devp)
95fecd90
WB		 9410{
9411 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
9412 unsigned long lock_flags = 0;
9413 irqreturn_t rc = IRQ_HANDLED;
9414
05a6538a 9415 dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n", irq);
95fecd90
WB		 9416 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9417
9418 ioa_cfg->msi_received = 1;
9419 wake_up(&ioa_cfg->msi_wait_q);
9420
9421 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9422 return rc;
9423}
9424
9425/**
9426 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
9427 * @pdev: PCI device struct
9428 *
9429 * Description: The return value from pci_enable_msi() can not always be
9430 * trusted. This routine sets up and initiates a test interrupt to determine
9431 * if the interrupt is received via the ipr_test_intr() service routine.
9432 * If the tests fails, the driver will fall back to LSI.
9433 *
9434 * Return value:
9435 * 0 on success / non-zero on failure
9436 **/
6f039790 9437static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev)
95fecd90
WB		 9438{
9439 int rc;
9440 volatile u32 int_reg;
9441 unsigned long lock_flags = 0;
9442
9443 ENTER;
9444
9445 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9446 init_waitqueue_head(&ioa_cfg->msi_wait_q);
9447 ioa_cfg->msi_received = 0;
9448 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
214777ba 9449 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
95fecd90
WB		 9450 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
9451 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9452
f19799f4 9453 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9454 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
9455 else
9456 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
95fecd90
WB		 9457 if (rc) {
9458 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
9459 return rc;
9460 } else if (ipr_debug)
9461 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
9462
214777ba 9463 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
95fecd90
WB		 9464 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
9465 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
56d6aa33 9466 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
95fecd90
WB		 9467 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
9468
95fecd90
WB		 9469 if (!ioa_cfg->msi_received) {
9470 /* MSI test failed */
9471 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
9472 rc = -EOPNOTSUPP;
9473 } else if (ipr_debug)
9474 dev_info(&pdev->dev, "MSI test succeeded.\n");
9475
9476 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9477
f19799f4 9478 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9479 free_irq(ioa_cfg->vectors_info[0].vec, ioa_cfg);
9480 else
9481 free_irq(pdev->irq, ioa_cfg);
95fecd90
WB		 9482
9483 LEAVE;
9484
9485 return rc;
9486}
9487
05a6538a 9488 /* ipr_probe_ioa - Allocates memory and does first stage of initialization
1da177e4
LT		 9489 * @pdev: PCI device struct
9490 * @dev_id: PCI device id struct
9491 *
9492 * Return value:
9493 * 0 on success / non-zero on failure
9494 **/
6f039790
GKH		 9495static int ipr_probe_ioa(struct pci_dev *pdev,
9496 const struct pci_device_id *dev_id)
1da177e4
LT		 9497{
9498 struct ipr_ioa_cfg *ioa_cfg;
9499 struct Scsi_Host *host;
9500 unsigned long ipr_regs_pci;
9501 void __iomem *ipr_regs;
a2a65a3e 9502 int rc = PCIBIOS_SUCCESSFUL;
473b1e8e 9503 volatile u32 mask, uproc, interrupts;
feccada9 9504 unsigned long lock_flags, driver_lock_flags;
1da177e4
LT		 9505
9506 ENTER;
9507
1da177e4 9508 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
1da177e4
LT		 9509 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
9510
9511 if (!host) {
9512 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
9513 rc = -ENOMEM;
6270e593 9514 goto out;
1da177e4
LT		 9515 }
9516
9517 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
9518 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
8d8e7d13 9519 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops);
1da177e4 9520
1be7bd82 9521 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
1da177e4 9522
1be7bd82 9523 if (!ioa_cfg->ipr_chip) {
1da177e4
LT		 9524 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
9525 dev_id->vendor, dev_id->device);
9526 goto out_scsi_host_put;
9527 }
9528
a32c055f
WB		 9529 /* set SIS 32 or SIS 64 */
9530 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
1be7bd82 9531 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
7dd21308 9532 ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr;
89aad428 9533 ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds;
1be7bd82 9534
5469cb5b
BK		 9535 if (ipr_transop_timeout)
9536 ioa_cfg->transop_timeout = ipr_transop_timeout;
9537 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
9538 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
9539 else
9540 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
9541
44c10138 9542 ioa_cfg->revid = pdev->revision;
463fc696 9543
6270e593
BK		 9544 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
9545
1da177e4
LT		 9546 ipr_regs_pci = pci_resource_start(pdev, 0);
9547
9548 rc = pci_request_regions(pdev, IPR_NAME);
9549 if (rc < 0) {
9550 dev_err(&pdev->dev,
9551 "Couldn't register memory range of registers\n");
9552 goto out_scsi_host_put;
9553 }
9554
6270e593
BK		 9555 rc = pci_enable_device(pdev);
9556
9557 if (rc || pci_channel_offline(pdev)) {
9558 if (pci_channel_offline(pdev)) {
9559 ipr_wait_for_pci_err_recovery(ioa_cfg);
9560 rc = pci_enable_device(pdev);
9561 }
9562
9563 if (rc) {
9564 dev_err(&pdev->dev, "Cannot enable adapter\n");
9565 ipr_wait_for_pci_err_recovery(ioa_cfg);
9566 goto out_release_regions;
9567 }
9568 }
9569
25729a7f 9570 ipr_regs = pci_ioremap_bar(pdev, 0);
1da177e4
LT		 9571
9572 if (!ipr_regs) {
9573 dev_err(&pdev->dev,
9574 "Couldn't map memory range of registers\n");
9575 rc = -ENOMEM;
6270e593 9576 goto out_disable;
1da177e4
LT		 9577 }
9578
9579 ioa_cfg->hdw_dma_regs = ipr_regs;
9580 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
9581 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
9582
6270e593 9583 ipr_init_regs(ioa_cfg);
1da177e4 9584
a32c055f
WB		 9585 if (ioa_cfg->sis64) {
9586 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
9587 if (rc < 0) {
9588 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n");
9589 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
9590 }
a32c055f
WB		 9591 } else
9592 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
9593
1da177e4
LT		 9594 if (rc < 0) {
9595 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
9596 goto cleanup_nomem;
9597 }
9598
9599 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
9600 ioa_cfg->chip_cfg->cache_line_size);
9601
9602 if (rc != PCIBIOS_SUCCESSFUL) {
9603 dev_err(&pdev->dev, "Write of cache line size failed\n");
6270e593 9604 ipr_wait_for_pci_err_recovery(ioa_cfg);
1da177e4
LT		 9605 rc = -EIO;
9606 goto cleanup_nomem;
9607 }
9608
6270e593
BK		 9609 /* Issue MMIO read to ensure card is not in EEH */
9610 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
9611 ipr_wait_for_pci_err_recovery(ioa_cfg);
9612
05a6538a 9613 if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) {
9614 dev_err(&pdev->dev, "The max number of MSIX is %d\n",
9615 IPR_MAX_MSIX_VECTORS);
9616 ipr_number_of_msix = IPR_MAX_MSIX_VECTORS;
9617 }
9618
9619 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
56d6aa33 9620 ipr_enable_msix(ioa_cfg) == 0)
05a6538a 9621 ioa_cfg->intr_flag = IPR_USE_MSIX;
9622 else if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
56d6aa33 9623 ipr_enable_msi(ioa_cfg) == 0)
05a6538a 9624 ioa_cfg->intr_flag = IPR_USE_MSI;
9625 else {
9626 ioa_cfg->intr_flag = IPR_USE_LSI;
9627 ioa_cfg->nvectors = 1;
9628 dev_info(&pdev->dev, "Cannot enable MSI.\n");
9629 }
9630
6270e593
BK		 9631 pci_set_master(pdev);
9632
9633 if (pci_channel_offline(pdev)) {
9634 ipr_wait_for_pci_err_recovery(ioa_cfg);
9635 pci_set_master(pdev);
9636 if (pci_channel_offline(pdev)) {
9637 rc = -EIO;
9638 goto out_msi_disable;
9639 }
9640 }
9641
05a6538a 9642 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
9643 ioa_cfg->intr_flag == IPR_USE_MSIX) {
95fecd90 9644 rc = ipr_test_msi(ioa_cfg, pdev);
05a6538a 9645 if (rc == -EOPNOTSUPP) {
6270e593 9646 ipr_wait_for_pci_err_recovery(ioa_cfg);
05a6538a 9647 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
9648 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
9649 pci_disable_msi(pdev);
9650 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
9651 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
9652 pci_disable_msix(pdev);
9653 }
9654
9655 ioa_cfg->intr_flag = IPR_USE_LSI;
9656 ioa_cfg->nvectors = 1;
9657 }
95fecd90
WB		 9658 else if (rc)
9659 goto out_msi_disable;
05a6538a 9660 else {
9661 if (ioa_cfg->intr_flag == IPR_USE_MSI)
9662 dev_info(&pdev->dev,
9663 "Request for %d MSIs succeeded with starting IRQ: %d\n",
9664 ioa_cfg->nvectors, pdev->irq);
9665 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9666 dev_info(&pdev->dev,
9667 "Request for %d MSIXs succeeded.",
9668 ioa_cfg->nvectors);
9669 }
9670 }
9671
9672 ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors,
9673 (unsigned int)num_online_cpus(),
9674 (unsigned int)IPR_MAX_HRRQ_NUM);
95fecd90 9675
1da177e4 9676 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
f170c684 9677 goto out_msi_disable;
1da177e4
LT		 9678
9679 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
f170c684 9680 goto out_msi_disable;
1da177e4
LT		 9681
9682 rc = ipr_alloc_mem(ioa_cfg);
9683 if (rc < 0) {
9684 dev_err(&pdev->dev,
9685 "Couldn't allocate enough memory for device driver!\n");
f170c684 9686 goto out_msi_disable;
1da177e4
LT		 9687 }
9688
6270e593
BK		 9689 /* Save away PCI config space for use following IOA reset */
9690 rc = pci_save_state(pdev);
9691
9692 if (rc != PCIBIOS_SUCCESSFUL) {
9693 dev_err(&pdev->dev, "Failed to save PCI config space\n");
9694 rc = -EIO;
9695 goto cleanup_nolog;
9696 }
9697
ce155cce
BK		 9698 /*
9699 * If HRRQ updated interrupt is not masked, or reset alert is set,
9700 * the card is in an unknown state and needs a hard reset
9701 */
214777ba
WB		 9702 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
9703 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
9704 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
ce155cce
BK		 9705 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
9706 ioa_cfg->needs_hard_reset = 1;
5d7c20b7 9707 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
473b1e8e
BK		 9708 ioa_cfg->needs_hard_reset = 1;
9709 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
9710 ioa_cfg->ioa_unit_checked = 1;
ce155cce 9711
56d6aa33 9712 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1da177e4 9713 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
56d6aa33 9714 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4 9715
05a6538a 9716 if (ioa_cfg->intr_flag == IPR_USE_MSI
9717 || ioa_cfg->intr_flag == IPR_USE_MSIX) {
9718 name_msi_vectors(ioa_cfg);
9719 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_isr,
9720 0,
9721 ioa_cfg->vectors_info[0].desc,
9722 &ioa_cfg->hrrq[0]);
9723 if (!rc)
9724 rc = ipr_request_other_msi_irqs(ioa_cfg);
9725 } else {
9726 rc = request_irq(pdev->irq, ipr_isr,
9727 IRQF_SHARED,
9728 IPR_NAME, &ioa_cfg->hrrq[0]);
9729 }
1da177e4
LT		 9730 if (rc) {
9731 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
9732 pdev->irq, rc);
9733 goto cleanup_nolog;
9734 }
9735
463fc696
BK		 9736 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
9737 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
9738 ioa_cfg->needs_warm_reset = 1;
9739 ioa_cfg->reset = ipr_reset_slot_reset;
9740 } else
9741 ioa_cfg->reset = ipr_reset_start_bist;
9742
feccada9 9743 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
1da177e4 9744 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
feccada9 9745 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
1da177e4
LT		 9746
9747 LEAVE;
9748out:
9749 return rc;
9750
9751cleanup_nolog:
9752 ipr_free_mem(ioa_cfg);
95fecd90 9753out_msi_disable:
6270e593 9754 ipr_wait_for_pci_err_recovery(ioa_cfg);
05a6538a 9755 if (ioa_cfg->intr_flag == IPR_USE_MSI)
9756 pci_disable_msi(pdev);
9757 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9758 pci_disable_msix(pdev);
f170c684
JL		 9759cleanup_nomem:
9760 iounmap(ipr_regs);
6270e593
BK		 9761out_disable:
9762 pci_disable_device(pdev);
1da177e4
LT		 9763out_release_regions:
9764 pci_release_regions(pdev);
9765out_scsi_host_put:
9766 scsi_host_put(host);
1da177e4
LT		 9767 goto out;
9768}
9769
9770/**
9771 * ipr_scan_vsets - Scans for VSET devices
9772 * @ioa_cfg: ioa config struct
9773 *
9774 * Description: Since the VSET resources do not follow SAM in that we can have
9775 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
9776 *
9777 * Return value:
9778 * none
9779 **/
9780static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
9781{
9782 int target, lun;
9783
9784 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
203fa3fe 9785 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++)
1da177e4
LT		 9786 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
9787}
9788
9789/**
9790 * ipr_initiate_ioa_bringdown - Bring down an adapter
9791 * @ioa_cfg: ioa config struct
9792 * @shutdown_type: shutdown type
9793 *
9794 * Description: This function will initiate bringing down the adapter.
9795 * This consists of issuing an IOA shutdown to the adapter
9796 * to flush the cache, and running BIST.
9797 * If the caller needs to wait on the completion of the reset,
9798 * the caller must sleep on the reset_wait_q.
9799 *
9800 * Return value:
9801 * none
9802 **/
9803static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
9804 enum ipr_shutdown_type shutdown_type)
9805{
9806 ENTER;
9807 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
9808 ioa_cfg->sdt_state = ABORT_DUMP;
9809 ioa_cfg->reset_retries = 0;
9810 ioa_cfg->in_ioa_bringdown = 1;
9811 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
9812 LEAVE;
9813}
9814
9815/**
9816 * __ipr_remove - Remove a single adapter
9817 * @pdev: pci device struct
9818 *
9819 * Adapter hot plug remove entry point.
9820 *
9821 * Return value:
9822 * none
9823 **/
9824static void __ipr_remove(struct pci_dev *pdev)
9825{
9826 unsigned long host_lock_flags = 0;
9827 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
bfae7820 9828 int i;
feccada9 9829 unsigned long driver_lock_flags;
1da177e4
LT		 9830 ENTER;
9831
9832 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
203fa3fe 9833 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 9834 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9835 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9836 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9837 }
9838
bfae7820
BK		 9839 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9840 spin_lock(&ioa_cfg->hrrq[i]._lock);
9841 ioa_cfg->hrrq[i].removing_ioa = 1;
9842 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9843 }
9844 wmb();
1da177e4
LT		 9845 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
9846
9847 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9848 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
43829731 9849 flush_work(&ioa_cfg->work_q);
9077a944 9850 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
1da177e4
LT		 9851 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9852
feccada9 9853 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
1da177e4 9854 list_del(&ioa_cfg->queue);
feccada9 9855 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
1da177e4
LT		 9856
9857 if (ioa_cfg->sdt_state == ABORT_DUMP)
9858 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
9859 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9860
9861 ipr_free_all_resources(ioa_cfg);
9862
9863 LEAVE;
9864}
9865
9866/**
9867 * ipr_remove - IOA hot plug remove entry point
9868 * @pdev: pci device struct
9869 *
9870 * Adapter hot plug remove entry point.
9871 *
9872 * Return value:
9873 * none
9874 **/
6f039790 9875static void ipr_remove(struct pci_dev *pdev)
1da177e4
LT		 9876{
9877 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9878
9879 ENTER;
9880
ee959b00 9881 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4 9882 &ipr_trace_attr);
ee959b00 9883 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9884 &ipr_dump_attr);
9885 scsi_remove_host(ioa_cfg->host);
9886
9887 __ipr_remove(pdev);
9888
9889 LEAVE;
9890}
9891
9892/**
9893 * ipr_probe - Adapter hot plug add entry point
9894 *
9895 * Return value:
9896 * 0 on success / non-zero on failure
9897 **/
6f039790 9898static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
1da177e4
LT		 9899{
9900 struct ipr_ioa_cfg *ioa_cfg;
b53d124a 9901 int rc, i;
1da177e4
LT		 9902
9903 rc = ipr_probe_ioa(pdev, dev_id);
9904
9905 if (rc)
9906 return rc;
9907
9908 ioa_cfg = pci_get_drvdata(pdev);
9909 rc = ipr_probe_ioa_part2(ioa_cfg);
9910
9911 if (rc) {
9912 __ipr_remove(pdev);
9913 return rc;
9914 }
9915
9916 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
9917
9918 if (rc) {
9919 __ipr_remove(pdev);
9920 return rc;
9921 }
9922
ee959b00 9923 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9924 &ipr_trace_attr);
9925
9926 if (rc) {
9927 scsi_remove_host(ioa_cfg->host);
9928 __ipr_remove(pdev);
9929 return rc;
9930 }
9931
ee959b00 9932 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9933 &ipr_dump_attr);
9934
9935 if (rc) {
ee959b00 9936 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9937 &ipr_trace_attr);
9938 scsi_remove_host(ioa_cfg->host);
9939 __ipr_remove(pdev);
9940 return rc;
9941 }
9942
9943 scsi_scan_host(ioa_cfg->host);
9944 ipr_scan_vsets(ioa_cfg);
9945 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
9946 ioa_cfg->allow_ml_add_del = 1;
11cd8f12 9947 ioa_cfg->host->max_channel = IPR_VSET_BUS;
b53d124a 9948 ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight;
9949
9950 if (blk_iopoll_enabled && ioa_cfg->iopoll_weight &&
9951 ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
9952 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
9953 blk_iopoll_init(&ioa_cfg->hrrq[i].iopoll,
9954 ioa_cfg->iopoll_weight, ipr_iopoll);
9955 blk_iopoll_enable(&ioa_cfg->hrrq[i].iopoll);
9956 }
9957 }
9958
1da177e4
LT		 9959 schedule_work(&ioa_cfg->work_q);
9960 return 0;
9961}
9962
9963/**
9964 * ipr_shutdown - Shutdown handler.
d18c3db5 9965 * @pdev: pci device struct
1da177e4
LT		 9966 *
9967 * This function is invoked upon system shutdown/reboot. It will issue
9968 * an adapter shutdown to the adapter to flush the write cache.
9969 *
9970 * Return value:
9971 * none
9972 **/
d18c3db5 9973static void ipr_shutdown(struct pci_dev *pdev)
1da177e4 9974{
d18c3db5 9975 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
1da177e4 9976 unsigned long lock_flags = 0;
b53d124a 9977 int i;
1da177e4
LT		 9978
9979 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
b53d124a 9980 if (blk_iopoll_enabled && ioa_cfg->iopoll_weight &&
9981 ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
9982 ioa_cfg->iopoll_weight = 0;
9983 for (i = 1; i < ioa_cfg->hrrq_num; i++)
9984 blk_iopoll_disable(&ioa_cfg->hrrq[i].iopoll);
9985 }
9986
203fa3fe 9987 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 9988 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9989 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9990 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9991 }
9992
1da177e4
LT		 9993 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
9994 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9995 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9996}
9997
6f039790 9998static struct pci_device_id ipr_pci_table[] = {
1da177e4 9999 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10000 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
1da177e4 10001 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10002 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
1da177e4 10003 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10004 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
1da177e4 10005 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10006 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
1da177e4 10007 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10008 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
1da177e4 10009 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10010 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
1da177e4 10011 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10012 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
86f51436 10013 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
5469cb5b
BK		 10014 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
10015 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 10016 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
6d84c944 10017 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 10018 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
22d2e402
BK		 10019 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10020 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 10021 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
5469cb5b
BK		 10022 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10023 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 10024 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
6d84c944 10025 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 10026 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
22d2e402
BK		 10027 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10028 IPR_USE_LONG_TRANSOP_TIMEOUT},
60e7486b 10029 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
5469cb5b
BK		 10030 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10031 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c 10032 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
22d2e402
BK		 10033 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
10034 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c
BK		 10035 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10036 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
b0f56d3d
WB		 10037 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10038 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
60e7486b 10039 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
5469cb5b 10040 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
463fc696 10041 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
1da177e4 10042 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
6d84c944 10043 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
1da177e4 10044 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
6d84c944 10045 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
86f51436 10046 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 10047 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
10048 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 10049 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 10050 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
10051 IPR_USE_LONG_TRANSOP_TIMEOUT },
d7b4627f
WB		 10052 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10053 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
10054 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10055 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
10056 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10057 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
b8d5d568 10058 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10059 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 },
5a918353
WB		 10060 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10061 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
32622bde
WB		 10062 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10063 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
cd9b3d04 10064 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10065 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
cd9b3d04 10066 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10067 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
cd9b3d04 10068 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10069 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
cd9b3d04
WB		 10070 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10071 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 },
10072 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10073 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
b8d5d568 10074 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10075 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 },
10076 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10077 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 },
10078 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10079 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 },
10080 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10081 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 },
43c5fdaf 10082 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10083 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 },
10084 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
f94d9964
WX		 10085 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 },
10086 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
43c5fdaf 10087 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 },
10088 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10089 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 },
10090 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10091 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 },
10092 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10093 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 },
10094 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10095 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 },
10096 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10097 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 },
1da177e4
LT		 10098 { }
10099};
10100MODULE_DEVICE_TABLE(pci, ipr_pci_table);
10101
a55b2d21 10102static const struct pci_error_handlers ipr_err_handler = {
f8a88b19 10103 .error_detected = ipr_pci_error_detected,
6270e593 10104 .mmio_enabled = ipr_pci_mmio_enabled,
f8a88b19
LV		 10105 .slot_reset = ipr_pci_slot_reset,
10106};
10107
1da177e4
LT		 10108static struct pci_driver ipr_driver = {
10109 .name = IPR_NAME,
10110 .id_table = ipr_pci_table,
10111 .probe = ipr_probe,
6f039790 10112 .remove = ipr_remove,
d18c3db5 10113 .shutdown = ipr_shutdown,
f8a88b19 10114 .err_handler = &ipr_err_handler,
1da177e4
LT		 10115};
10116
f72919ec
WB		 10117/**
10118 * ipr_halt_done - Shutdown prepare completion
10119 *
10120 * Return value:
10121 * none
10122 **/
10123static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
10124{
05a6538a 10125 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
f72919ec
WB		 10126}
10127
10128/**
10129 * ipr_halt - Issue shutdown prepare to all adapters
10130 *
10131 * Return value:
10132 * NOTIFY_OK on success / NOTIFY_DONE on failure
10133 **/
10134static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
10135{
10136 struct ipr_cmnd *ipr_cmd;
10137 struct ipr_ioa_cfg *ioa_cfg;
feccada9 10138 unsigned long flags = 0, driver_lock_flags;
f72919ec
WB		 10139
10140 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
10141 return NOTIFY_DONE;
10142
feccada9 10143 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
f72919ec
WB		 10144
10145 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
10146 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
56d6aa33 10147 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
f72919ec
WB		 10148 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10149 continue;
10150 }
10151
10152 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
10153 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
10154 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
10155 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
10156 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
10157
10158 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
10159 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10160 }
feccada9 10161 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
f72919ec
WB		 10162
10163 return NOTIFY_OK;
10164}
10165
10166static struct notifier_block ipr_notifier = {
10167 ipr_halt, NULL, 0
10168};
10169
1da177e4
LT		 10170/**
10171 * ipr_init - Module entry point
10172 *
10173 * Return value:
10174 * 0 on success / negative value on failure
10175 **/
10176static int __init ipr_init(void)
10177{
10178 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
10179 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
10180
f72919ec 10181 register_reboot_notifier(&ipr_notifier);
dcbccbde 10182 return pci_register_driver(&ipr_driver);
1da177e4
LT		 10183}
10184
10185/**
10186 * ipr_exit - Module unload
10187 *
10188 * Module unload entry point.
10189 *
10190 * Return value:
10191 * none
10192 **/
10193static void __exit ipr_exit(void)
10194{
f72919ec 10195 unregister_reboot_notifier(&ipr_notifier);
1da177e4
LT		 10196 pci_unregister_driver(&ipr_driver);
10197}
10198
10199module_init(ipr_init);
10200module_exit(ipr_exit);
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