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1da177e4 LT |
1 | /* |
2 | * ipr.c -- driver for IBM Power Linux RAID adapters | |
3 | * | |
4 | * Written By: Brian King <brking@us.ibm.com>, IBM Corporation | |
5 | * | |
6 | * Copyright (C) 2003, 2004 IBM Corporation | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | * | |
22 | */ | |
23 | ||
24 | /* | |
25 | * Notes: | |
26 | * | |
27 | * This driver is used to control the following SCSI adapters: | |
28 | * | |
29 | * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B | |
30 | * | |
31 | * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter | |
32 | * PCI-X Dual Channel Ultra 320 SCSI Adapter | |
33 | * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card | |
34 | * Embedded SCSI adapter on p615 and p655 systems | |
35 | * | |
36 | * Supported Hardware Features: | |
37 | * - Ultra 320 SCSI controller | |
38 | * - PCI-X host interface | |
39 | * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine | |
40 | * - Non-Volatile Write Cache | |
41 | * - Supports attachment of non-RAID disks, tape, and optical devices | |
42 | * - RAID Levels 0, 5, 10 | |
43 | * - Hot spare | |
44 | * - Background Parity Checking | |
45 | * - Background Data Scrubbing | |
46 | * - Ability to increase the capacity of an existing RAID 5 disk array | |
47 | * by adding disks | |
48 | * | |
49 | * Driver Features: | |
50 | * - Tagged command queuing | |
51 | * - Adapter microcode download | |
52 | * - PCI hot plug | |
53 | * - SCSI device hot plug | |
54 | * | |
55 | */ | |
56 | ||
1da177e4 LT |
57 | #include <linux/fs.h> |
58 | #include <linux/init.h> | |
59 | #include <linux/types.h> | |
60 | #include <linux/errno.h> | |
61 | #include <linux/kernel.h> | |
62 | #include <linux/ioport.h> | |
63 | #include <linux/delay.h> | |
64 | #include <linux/pci.h> | |
65 | #include <linux/wait.h> | |
66 | #include <linux/spinlock.h> | |
67 | #include <linux/sched.h> | |
68 | #include <linux/interrupt.h> | |
69 | #include <linux/blkdev.h> | |
70 | #include <linux/firmware.h> | |
71 | #include <linux/module.h> | |
72 | #include <linux/moduleparam.h> | |
35a39691 | 73 | #include <linux/libata.h> |
1da177e4 LT |
74 | #include <asm/io.h> |
75 | #include <asm/irq.h> | |
76 | #include <asm/processor.h> | |
77 | #include <scsi/scsi.h> | |
78 | #include <scsi/scsi_host.h> | |
79 | #include <scsi/scsi_tcq.h> | |
80 | #include <scsi/scsi_eh.h> | |
81 | #include <scsi/scsi_cmnd.h> | |
1da177e4 LT |
82 | #include "ipr.h" |
83 | ||
84 | /* | |
85 | * Global Data | |
86 | */ | |
87 | static struct list_head ipr_ioa_head = LIST_HEAD_INIT(ipr_ioa_head); | |
88 | static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL; | |
89 | static unsigned int ipr_max_speed = 1; | |
90 | static int ipr_testmode = 0; | |
91 | static unsigned int ipr_fastfail = 0; | |
5469cb5b | 92 | static unsigned int ipr_transop_timeout = 0; |
62275040 | 93 | static unsigned int ipr_enable_cache = 1; |
d3c74871 | 94 | static unsigned int ipr_debug = 0; |
1da177e4 LT |
95 | static DEFINE_SPINLOCK(ipr_driver_lock); |
96 | ||
97 | /* This table describes the differences between DMA controller chips */ | |
98 | static const struct ipr_chip_cfg_t ipr_chip_cfg[] = { | |
60e7486b | 99 | { /* Gemstone, Citrine, Obsidian, and Obsidian-E */ |
1da177e4 LT |
100 | .mailbox = 0x0042C, |
101 | .cache_line_size = 0x20, | |
102 | { | |
103 | .set_interrupt_mask_reg = 0x0022C, | |
104 | .clr_interrupt_mask_reg = 0x00230, | |
105 | .sense_interrupt_mask_reg = 0x0022C, | |
106 | .clr_interrupt_reg = 0x00228, | |
107 | .sense_interrupt_reg = 0x00224, | |
108 | .ioarrin_reg = 0x00404, | |
109 | .sense_uproc_interrupt_reg = 0x00214, | |
110 | .set_uproc_interrupt_reg = 0x00214, | |
111 | .clr_uproc_interrupt_reg = 0x00218 | |
112 | } | |
113 | }, | |
114 | { /* Snipe and Scamp */ | |
115 | .mailbox = 0x0052C, | |
116 | .cache_line_size = 0x20, | |
117 | { | |
118 | .set_interrupt_mask_reg = 0x00288, | |
119 | .clr_interrupt_mask_reg = 0x0028C, | |
120 | .sense_interrupt_mask_reg = 0x00288, | |
121 | .clr_interrupt_reg = 0x00284, | |
122 | .sense_interrupt_reg = 0x00280, | |
123 | .ioarrin_reg = 0x00504, | |
124 | .sense_uproc_interrupt_reg = 0x00290, | |
125 | .set_uproc_interrupt_reg = 0x00290, | |
126 | .clr_uproc_interrupt_reg = 0x00294 | |
127 | } | |
128 | }, | |
129 | }; | |
130 | ||
131 | static const struct ipr_chip_t ipr_chip[] = { | |
132 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, &ipr_chip_cfg[0] }, | |
133 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, &ipr_chip_cfg[0] }, | |
86f51436 | 134 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, &ipr_chip_cfg[0] }, |
135 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, &ipr_chip_cfg[0] }, | |
60e7486b | 136 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, &ipr_chip_cfg[0] }, |
1da177e4 LT |
137 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, &ipr_chip_cfg[1] }, |
138 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, &ipr_chip_cfg[1] } | |
139 | }; | |
140 | ||
141 | static int ipr_max_bus_speeds [] = { | |
142 | IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE | |
143 | }; | |
144 | ||
145 | MODULE_AUTHOR("Brian King <brking@us.ibm.com>"); | |
146 | MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver"); | |
147 | module_param_named(max_speed, ipr_max_speed, uint, 0); | |
148 | MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320"); | |
149 | module_param_named(log_level, ipr_log_level, uint, 0); | |
150 | MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver"); | |
151 | module_param_named(testmode, ipr_testmode, int, 0); | |
152 | MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations"); | |
153 | module_param_named(fastfail, ipr_fastfail, int, 0); | |
154 | MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries"); | |
155 | module_param_named(transop_timeout, ipr_transop_timeout, int, 0); | |
156 | MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)"); | |
62275040 | 157 | module_param_named(enable_cache, ipr_enable_cache, int, 0); |
158 | MODULE_PARM_DESC(enable_cache, "Enable adapter's non-volatile write cache (default: 1)"); | |
d3c74871 | 159 | module_param_named(debug, ipr_debug, int, 0); |
160 | MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)"); | |
1da177e4 LT |
161 | MODULE_LICENSE("GPL"); |
162 | MODULE_VERSION(IPR_DRIVER_VERSION); | |
163 | ||
1da177e4 LT |
164 | /* A constant array of IOASCs/URCs/Error Messages */ |
165 | static const | |
166 | struct ipr_error_table_t ipr_error_table[] = { | |
933916f3 | 167 | {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
168 | "8155: An unknown error was received"}, |
169 | {0x00330000, 0, 0, | |
170 | "Soft underlength error"}, | |
171 | {0x005A0000, 0, 0, | |
172 | "Command to be cancelled not found"}, | |
173 | {0x00808000, 0, 0, | |
174 | "Qualified success"}, | |
933916f3 | 175 | {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 176 | "FFFE: Soft device bus error recovered by the IOA"}, |
933916f3 | 177 | {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 178 | "4101: Soft device bus fabric error"}, |
933916f3 | 179 | {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 180 | "FFF9: Device sector reassign successful"}, |
933916f3 | 181 | {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 182 | "FFF7: Media error recovered by device rewrite procedures"}, |
933916f3 | 183 | {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 184 | "7001: IOA sector reassignment successful"}, |
933916f3 | 185 | {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 186 | "FFF9: Soft media error. Sector reassignment recommended"}, |
933916f3 | 187 | {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 188 | "FFF7: Media error recovered by IOA rewrite procedures"}, |
933916f3 | 189 | {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 190 | "FF3D: Soft PCI bus error recovered by the IOA"}, |
933916f3 | 191 | {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 192 | "FFF6: Device hardware error recovered by the IOA"}, |
933916f3 | 193 | {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 194 | "FFF6: Device hardware error recovered by the device"}, |
933916f3 | 195 | {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 196 | "FF3D: Soft IOA error recovered by the IOA"}, |
933916f3 | 197 | {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 198 | "FFFA: Undefined device response recovered by the IOA"}, |
933916f3 | 199 | {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 200 | "FFF6: Device bus error, message or command phase"}, |
933916f3 | 201 | {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL, |
35a39691 | 202 | "FFFE: Task Management Function failed"}, |
933916f3 | 203 | {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 204 | "FFF6: Failure prediction threshold exceeded"}, |
933916f3 | 205 | {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
206 | "8009: Impending cache battery pack failure"}, |
207 | {0x02040400, 0, 0, | |
208 | "34FF: Disk device format in progress"}, | |
209 | {0x023F0000, 0, 0, | |
210 | "Synchronization required"}, | |
211 | {0x024E0000, 0, 0, | |
212 | "No ready, IOA shutdown"}, | |
213 | {0x025A0000, 0, 0, | |
214 | "Not ready, IOA has been shutdown"}, | |
933916f3 | 215 | {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
216 | "3020: Storage subsystem configuration error"}, |
217 | {0x03110B00, 0, 0, | |
218 | "FFF5: Medium error, data unreadable, recommend reassign"}, | |
219 | {0x03110C00, 0, 0, | |
220 | "7000: Medium error, data unreadable, do not reassign"}, | |
933916f3 | 221 | {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 222 | "FFF3: Disk media format bad"}, |
933916f3 | 223 | {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 224 | "3002: Addressed device failed to respond to selection"}, |
933916f3 | 225 | {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 226 | "3100: Device bus error"}, |
933916f3 | 227 | {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
228 | "3109: IOA timed out a device command"}, |
229 | {0x04088000, 0, 0, | |
230 | "3120: SCSI bus is not operational"}, | |
933916f3 | 231 | {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 232 | "4100: Hard device bus fabric error"}, |
933916f3 | 233 | {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 234 | "9000: IOA reserved area data check"}, |
933916f3 | 235 | {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 236 | "9001: IOA reserved area invalid data pattern"}, |
933916f3 | 237 | {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 238 | "9002: IOA reserved area LRC error"}, |
933916f3 | 239 | {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 240 | "102E: Out of alternate sectors for disk storage"}, |
933916f3 | 241 | {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 242 | "FFF4: Data transfer underlength error"}, |
933916f3 | 243 | {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 244 | "FFF4: Data transfer overlength error"}, |
933916f3 | 245 | {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 246 | "3400: Logical unit failure"}, |
933916f3 | 247 | {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 248 | "FFF4: Device microcode is corrupt"}, |
933916f3 | 249 | {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
250 | "8150: PCI bus error"}, |
251 | {0x04430000, 1, 0, | |
252 | "Unsupported device bus message received"}, | |
933916f3 | 253 | {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 254 | "FFF4: Disk device problem"}, |
933916f3 | 255 | {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 256 | "8150: Permanent IOA failure"}, |
933916f3 | 257 | {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 258 | "3010: Disk device returned wrong response to IOA"}, |
933916f3 | 259 | {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
260 | "8151: IOA microcode error"}, |
261 | {0x04448500, 0, 0, | |
262 | "Device bus status error"}, | |
933916f3 | 263 | {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 264 | "8157: IOA error requiring IOA reset to recover"}, |
35a39691 BK |
265 | {0x04448700, 0, 0, |
266 | "ATA device status error"}, | |
1da177e4 LT |
267 | {0x04490000, 0, 0, |
268 | "Message reject received from the device"}, | |
933916f3 | 269 | {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 270 | "8008: A permanent cache battery pack failure occurred"}, |
933916f3 | 271 | {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 272 | "9090: Disk unit has been modified after the last known status"}, |
933916f3 | 273 | {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 274 | "9081: IOA detected device error"}, |
933916f3 | 275 | {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 276 | "9082: IOA detected device error"}, |
933916f3 | 277 | {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 278 | "3110: Device bus error, message or command phase"}, |
933916f3 | 279 | {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL, |
35a39691 | 280 | "3110: SAS Command / Task Management Function failed"}, |
933916f3 | 281 | {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 282 | "9091: Incorrect hardware configuration change has been detected"}, |
933916f3 | 283 | {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL, |
b0df54bb | 284 | "9073: Invalid multi-adapter configuration"}, |
933916f3 | 285 | {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 286 | "4010: Incorrect connection between cascaded expanders"}, |
933916f3 | 287 | {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 288 | "4020: Connections exceed IOA design limits"}, |
933916f3 | 289 | {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 290 | "4030: Incorrect multipath connection"}, |
933916f3 | 291 | {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 292 | "4110: Unsupported enclosure function"}, |
933916f3 | 293 | {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
294 | "FFF4: Command to logical unit failed"}, |
295 | {0x05240000, 1, 0, | |
296 | "Illegal request, invalid request type or request packet"}, | |
297 | {0x05250000, 0, 0, | |
298 | "Illegal request, invalid resource handle"}, | |
b0df54bb | 299 | {0x05258000, 0, 0, |
300 | "Illegal request, commands not allowed to this device"}, | |
301 | {0x05258100, 0, 0, | |
302 | "Illegal request, command not allowed to a secondary adapter"}, | |
1da177e4 LT |
303 | {0x05260000, 0, 0, |
304 | "Illegal request, invalid field in parameter list"}, | |
305 | {0x05260100, 0, 0, | |
306 | "Illegal request, parameter not supported"}, | |
307 | {0x05260200, 0, 0, | |
308 | "Illegal request, parameter value invalid"}, | |
309 | {0x052C0000, 0, 0, | |
310 | "Illegal request, command sequence error"}, | |
b0df54bb | 311 | {0x052C8000, 1, 0, |
312 | "Illegal request, dual adapter support not enabled"}, | |
933916f3 | 313 | {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 314 | "9031: Array protection temporarily suspended, protection resuming"}, |
933916f3 | 315 | {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 316 | "9040: Array protection temporarily suspended, protection resuming"}, |
933916f3 | 317 | {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 318 | "3140: Device bus not ready to ready transition"}, |
933916f3 | 319 | {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
320 | "FFFB: SCSI bus was reset"}, |
321 | {0x06290500, 0, 0, | |
322 | "FFFE: SCSI bus transition to single ended"}, | |
323 | {0x06290600, 0, 0, | |
324 | "FFFE: SCSI bus transition to LVD"}, | |
933916f3 | 325 | {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 326 | "FFFB: SCSI bus was reset by another initiator"}, |
933916f3 | 327 | {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 328 | "3029: A device replacement has occurred"}, |
933916f3 | 329 | {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 330 | "9051: IOA cache data exists for a missing or failed device"}, |
933916f3 | 331 | {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL, |
b0df54bb | 332 | "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"}, |
933916f3 | 333 | {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 334 | "9025: Disk unit is not supported at its physical location"}, |
933916f3 | 335 | {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 336 | "3020: IOA detected a SCSI bus configuration error"}, |
933916f3 | 337 | {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 338 | "3150: SCSI bus configuration error"}, |
933916f3 | 339 | {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL, |
b0df54bb | 340 | "9074: Asymmetric advanced function disk configuration"}, |
933916f3 | 341 | {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 342 | "4040: Incomplete multipath connection between IOA and enclosure"}, |
933916f3 | 343 | {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 344 | "4041: Incomplete multipath connection between enclosure and device"}, |
933916f3 | 345 | {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 346 | "9075: Incomplete multipath connection between IOA and remote IOA"}, |
933916f3 | 347 | {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 348 | "9076: Configuration error, missing remote IOA"}, |
933916f3 | 349 | {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 350 | "4050: Enclosure does not support a required multipath function"}, |
933916f3 | 351 | {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 352 | "9041: Array protection temporarily suspended"}, |
933916f3 | 353 | {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 354 | "9042: Corrupt array parity detected on specified device"}, |
933916f3 | 355 | {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 356 | "9030: Array no longer protected due to missing or failed disk unit"}, |
933916f3 | 357 | {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL, |
b0df54bb | 358 | "9071: Link operational transition"}, |
933916f3 | 359 | {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL, |
b0df54bb | 360 | "9072: Link not operational transition"}, |
933916f3 | 361 | {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 362 | "9032: Array exposed but still protected"}, |
e435340c BK |
363 | {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1, |
364 | "70DD: Device forced failed by disrupt device command"}, | |
933916f3 | 365 | {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 366 | "4061: Multipath redundancy level got better"}, |
933916f3 | 367 | {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 368 | "4060: Multipath redundancy level got worse"}, |
1da177e4 LT |
369 | {0x07270000, 0, 0, |
370 | "Failure due to other device"}, | |
933916f3 | 371 | {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 372 | "9008: IOA does not support functions expected by devices"}, |
933916f3 | 373 | {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 374 | "9010: Cache data associated with attached devices cannot be found"}, |
933916f3 | 375 | {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 376 | "9011: Cache data belongs to devices other than those attached"}, |
933916f3 | 377 | {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 378 | "9020: Array missing 2 or more devices with only 1 device present"}, |
933916f3 | 379 | {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 380 | "9021: Array missing 2 or more devices with 2 or more devices present"}, |
933916f3 | 381 | {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 382 | "9022: Exposed array is missing a required device"}, |
933916f3 | 383 | {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 384 | "9023: Array member(s) not at required physical locations"}, |
933916f3 | 385 | {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 386 | "9024: Array not functional due to present hardware configuration"}, |
933916f3 | 387 | {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 388 | "9026: Array not functional due to present hardware configuration"}, |
933916f3 | 389 | {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 390 | "9027: Array is missing a device and parity is out of sync"}, |
933916f3 | 391 | {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 392 | "9028: Maximum number of arrays already exist"}, |
933916f3 | 393 | {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 394 | "9050: Required cache data cannot be located for a disk unit"}, |
933916f3 | 395 | {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 396 | "9052: Cache data exists for a device that has been modified"}, |
933916f3 | 397 | {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 398 | "9054: IOA resources not available due to previous problems"}, |
933916f3 | 399 | {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 400 | "9092: Disk unit requires initialization before use"}, |
933916f3 | 401 | {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 402 | "9029: Incorrect hardware configuration change has been detected"}, |
933916f3 | 403 | {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 404 | "9060: One or more disk pairs are missing from an array"}, |
933916f3 | 405 | {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 406 | "9061: One or more disks are missing from an array"}, |
933916f3 | 407 | {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 408 | "9062: One or more disks are missing from an array"}, |
933916f3 | 409 | {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
410 | "9063: Maximum number of functional arrays has been exceeded"}, |
411 | {0x0B260000, 0, 0, | |
412 | "Aborted command, invalid descriptor"}, | |
413 | {0x0B5A0000, 0, 0, | |
414 | "Command terminated by host"} | |
415 | }; | |
416 | ||
417 | static const struct ipr_ses_table_entry ipr_ses_table[] = { | |
418 | { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 }, | |
419 | { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 }, | |
420 | { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */ | |
421 | { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */ | |
422 | { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */ | |
423 | { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */ | |
424 | { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 }, | |
425 | { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 }, | |
426 | { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, | |
427 | { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, | |
428 | { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 }, | |
429 | { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 }, | |
430 | { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 } | |
431 | }; | |
432 | ||
433 | /* | |
434 | * Function Prototypes | |
435 | */ | |
436 | static int ipr_reset_alert(struct ipr_cmnd *); | |
437 | static void ipr_process_ccn(struct ipr_cmnd *); | |
438 | static void ipr_process_error(struct ipr_cmnd *); | |
439 | static void ipr_reset_ioa_job(struct ipr_cmnd *); | |
440 | static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *, | |
441 | enum ipr_shutdown_type); | |
442 | ||
443 | #ifdef CONFIG_SCSI_IPR_TRACE | |
444 | /** | |
445 | * ipr_trc_hook - Add a trace entry to the driver trace | |
446 | * @ipr_cmd: ipr command struct | |
447 | * @type: trace type | |
448 | * @add_data: additional data | |
449 | * | |
450 | * Return value: | |
451 | * none | |
452 | **/ | |
453 | static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd, | |
454 | u8 type, u32 add_data) | |
455 | { | |
456 | struct ipr_trace_entry *trace_entry; | |
457 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
458 | ||
459 | trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++]; | |
460 | trace_entry->time = jiffies; | |
461 | trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0]; | |
462 | trace_entry->type = type; | |
35a39691 BK |
463 | trace_entry->ata_op_code = ipr_cmd->ioarcb.add_data.u.regs.command; |
464 | trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff; | |
1da177e4 LT |
465 | trace_entry->res_handle = ipr_cmd->ioarcb.res_handle; |
466 | trace_entry->u.add_data = add_data; | |
467 | } | |
468 | #else | |
469 | #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0) | |
470 | #endif | |
471 | ||
472 | /** | |
473 | * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse | |
474 | * @ipr_cmd: ipr command struct | |
475 | * | |
476 | * Return value: | |
477 | * none | |
478 | **/ | |
479 | static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd) | |
480 | { | |
481 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
482 | struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; | |
51b1c7e1 | 483 | dma_addr_t dma_addr = be32_to_cpu(ioarcb->ioarcb_host_pci_addr); |
1da177e4 LT |
484 | |
485 | memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); | |
486 | ioarcb->write_data_transfer_length = 0; | |
487 | ioarcb->read_data_transfer_length = 0; | |
488 | ioarcb->write_ioadl_len = 0; | |
489 | ioarcb->read_ioadl_len = 0; | |
51b1c7e1 BK |
490 | ioarcb->write_ioadl_addr = |
491 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl)); | |
492 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; | |
1da177e4 LT |
493 | ioasa->ioasc = 0; |
494 | ioasa->residual_data_len = 0; | |
35a39691 | 495 | ioasa->u.gata.status = 0; |
1da177e4 LT |
496 | |
497 | ipr_cmd->scsi_cmd = NULL; | |
35a39691 | 498 | ipr_cmd->qc = NULL; |
1da177e4 LT |
499 | ipr_cmd->sense_buffer[0] = 0; |
500 | ipr_cmd->dma_use_sg = 0; | |
501 | } | |
502 | ||
503 | /** | |
504 | * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block | |
505 | * @ipr_cmd: ipr command struct | |
506 | * | |
507 | * Return value: | |
508 | * none | |
509 | **/ | |
510 | static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd) | |
511 | { | |
512 | ipr_reinit_ipr_cmnd(ipr_cmd); | |
513 | ipr_cmd->u.scratch = 0; | |
514 | ipr_cmd->sibling = NULL; | |
515 | init_timer(&ipr_cmd->timer); | |
516 | } | |
517 | ||
518 | /** | |
519 | * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block | |
520 | * @ioa_cfg: ioa config struct | |
521 | * | |
522 | * Return value: | |
523 | * pointer to ipr command struct | |
524 | **/ | |
525 | static | |
526 | struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg) | |
527 | { | |
528 | struct ipr_cmnd *ipr_cmd; | |
529 | ||
530 | ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue); | |
531 | list_del(&ipr_cmd->queue); | |
532 | ipr_init_ipr_cmnd(ipr_cmd); | |
533 | ||
534 | return ipr_cmd; | |
535 | } | |
536 | ||
537 | /** | |
538 | * ipr_unmap_sglist - Unmap scatterlist if mapped | |
539 | * @ioa_cfg: ioa config struct | |
540 | * @ipr_cmd: ipr command struct | |
541 | * | |
542 | * Return value: | |
543 | * nothing | |
544 | **/ | |
545 | static void ipr_unmap_sglist(struct ipr_ioa_cfg *ioa_cfg, | |
546 | struct ipr_cmnd *ipr_cmd) | |
547 | { | |
548 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
549 | ||
550 | if (ipr_cmd->dma_use_sg) { | |
551 | if (scsi_cmd->use_sg > 0) { | |
552 | pci_unmap_sg(ioa_cfg->pdev, scsi_cmd->request_buffer, | |
553 | scsi_cmd->use_sg, | |
554 | scsi_cmd->sc_data_direction); | |
555 | } else { | |
556 | pci_unmap_single(ioa_cfg->pdev, ipr_cmd->dma_handle, | |
557 | scsi_cmd->request_bufflen, | |
558 | scsi_cmd->sc_data_direction); | |
559 | } | |
560 | } | |
561 | } | |
562 | ||
563 | /** | |
564 | * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts | |
565 | * @ioa_cfg: ioa config struct | |
566 | * @clr_ints: interrupts to clear | |
567 | * | |
568 | * This function masks all interrupts on the adapter, then clears the | |
569 | * interrupts specified in the mask | |
570 | * | |
571 | * Return value: | |
572 | * none | |
573 | **/ | |
574 | static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg, | |
575 | u32 clr_ints) | |
576 | { | |
577 | volatile u32 int_reg; | |
578 | ||
579 | /* Stop new interrupts */ | |
580 | ioa_cfg->allow_interrupts = 0; | |
581 | ||
582 | /* Set interrupt mask to stop all new interrupts */ | |
583 | writel(~0, ioa_cfg->regs.set_interrupt_mask_reg); | |
584 | ||
585 | /* Clear any pending interrupts */ | |
586 | writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg); | |
587 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
588 | } | |
589 | ||
590 | /** | |
591 | * ipr_save_pcix_cmd_reg - Save PCI-X command register | |
592 | * @ioa_cfg: ioa config struct | |
593 | * | |
594 | * Return value: | |
595 | * 0 on success / -EIO on failure | |
596 | **/ | |
597 | static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) | |
598 | { | |
599 | int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); | |
600 | ||
7dce0e1c BK |
601 | if (pcix_cmd_reg == 0) |
602 | return 0; | |
1da177e4 LT |
603 | |
604 | if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, | |
605 | &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { | |
606 | dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); | |
607 | return -EIO; | |
608 | } | |
609 | ||
610 | ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO; | |
611 | return 0; | |
612 | } | |
613 | ||
614 | /** | |
615 | * ipr_set_pcix_cmd_reg - Setup PCI-X command register | |
616 | * @ioa_cfg: ioa config struct | |
617 | * | |
618 | * Return value: | |
619 | * 0 on success / -EIO on failure | |
620 | **/ | |
621 | static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) | |
622 | { | |
623 | int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); | |
624 | ||
625 | if (pcix_cmd_reg) { | |
626 | if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, | |
627 | ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { | |
628 | dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n"); | |
629 | return -EIO; | |
630 | } | |
1da177e4 LT |
631 | } |
632 | ||
633 | return 0; | |
634 | } | |
635 | ||
35a39691 BK |
636 | /** |
637 | * ipr_sata_eh_done - done function for aborted SATA commands | |
638 | * @ipr_cmd: ipr command struct | |
639 | * | |
640 | * This function is invoked for ops generated to SATA | |
641 | * devices which are being aborted. | |
642 | * | |
643 | * Return value: | |
644 | * none | |
645 | **/ | |
646 | static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd) | |
647 | { | |
648 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
649 | struct ata_queued_cmd *qc = ipr_cmd->qc; | |
650 | struct ipr_sata_port *sata_port = qc->ap->private_data; | |
651 | ||
652 | qc->err_mask |= AC_ERR_OTHER; | |
653 | sata_port->ioasa.status |= ATA_BUSY; | |
654 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
655 | ata_qc_complete(qc); | |
656 | } | |
657 | ||
1da177e4 LT |
658 | /** |
659 | * ipr_scsi_eh_done - mid-layer done function for aborted ops | |
660 | * @ipr_cmd: ipr command struct | |
661 | * | |
662 | * This function is invoked by the interrupt handler for | |
663 | * ops generated by the SCSI mid-layer which are being aborted. | |
664 | * | |
665 | * Return value: | |
666 | * none | |
667 | **/ | |
668 | static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) | |
669 | { | |
670 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
671 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
672 | ||
673 | scsi_cmd->result |= (DID_ERROR << 16); | |
674 | ||
675 | ipr_unmap_sglist(ioa_cfg, ipr_cmd); | |
676 | scsi_cmd->scsi_done(scsi_cmd); | |
677 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
678 | } | |
679 | ||
680 | /** | |
681 | * ipr_fail_all_ops - Fails all outstanding ops. | |
682 | * @ioa_cfg: ioa config struct | |
683 | * | |
684 | * This function fails all outstanding ops. | |
685 | * | |
686 | * Return value: | |
687 | * none | |
688 | **/ | |
689 | static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg) | |
690 | { | |
691 | struct ipr_cmnd *ipr_cmd, *temp; | |
692 | ||
693 | ENTER; | |
694 | list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) { | |
695 | list_del(&ipr_cmd->queue); | |
696 | ||
697 | ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET); | |
698 | ipr_cmd->ioasa.ilid = cpu_to_be32(IPR_DRIVER_ILID); | |
699 | ||
700 | if (ipr_cmd->scsi_cmd) | |
701 | ipr_cmd->done = ipr_scsi_eh_done; | |
35a39691 BK |
702 | else if (ipr_cmd->qc) |
703 | ipr_cmd->done = ipr_sata_eh_done; | |
1da177e4 LT |
704 | |
705 | ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET); | |
706 | del_timer(&ipr_cmd->timer); | |
707 | ipr_cmd->done(ipr_cmd); | |
708 | } | |
709 | ||
710 | LEAVE; | |
711 | } | |
712 | ||
713 | /** | |
714 | * ipr_do_req - Send driver initiated requests. | |
715 | * @ipr_cmd: ipr command struct | |
716 | * @done: done function | |
717 | * @timeout_func: timeout function | |
718 | * @timeout: timeout value | |
719 | * | |
720 | * This function sends the specified command to the adapter with the | |
721 | * timeout given. The done function is invoked on command completion. | |
722 | * | |
723 | * Return value: | |
724 | * none | |
725 | **/ | |
726 | static void ipr_do_req(struct ipr_cmnd *ipr_cmd, | |
727 | void (*done) (struct ipr_cmnd *), | |
728 | void (*timeout_func) (struct ipr_cmnd *), u32 timeout) | |
729 | { | |
730 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
731 | ||
732 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
733 | ||
734 | ipr_cmd->done = done; | |
735 | ||
736 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; | |
737 | ipr_cmd->timer.expires = jiffies + timeout; | |
738 | ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func; | |
739 | ||
740 | add_timer(&ipr_cmd->timer); | |
741 | ||
742 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0); | |
743 | ||
744 | mb(); | |
745 | writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), | |
746 | ioa_cfg->regs.ioarrin_reg); | |
747 | } | |
748 | ||
749 | /** | |
750 | * ipr_internal_cmd_done - Op done function for an internally generated op. | |
751 | * @ipr_cmd: ipr command struct | |
752 | * | |
753 | * This function is the op done function for an internally generated, | |
754 | * blocking op. It simply wakes the sleeping thread. | |
755 | * | |
756 | * Return value: | |
757 | * none | |
758 | **/ | |
759 | static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd) | |
760 | { | |
761 | if (ipr_cmd->sibling) | |
762 | ipr_cmd->sibling = NULL; | |
763 | else | |
764 | complete(&ipr_cmd->completion); | |
765 | } | |
766 | ||
767 | /** | |
768 | * ipr_send_blocking_cmd - Send command and sleep on its completion. | |
769 | * @ipr_cmd: ipr command struct | |
770 | * @timeout_func: function to invoke if command times out | |
771 | * @timeout: timeout | |
772 | * | |
773 | * Return value: | |
774 | * none | |
775 | **/ | |
776 | static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd, | |
777 | void (*timeout_func) (struct ipr_cmnd *ipr_cmd), | |
778 | u32 timeout) | |
779 | { | |
780 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
781 | ||
782 | init_completion(&ipr_cmd->completion); | |
783 | ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout); | |
784 | ||
785 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
786 | wait_for_completion(&ipr_cmd->completion); | |
787 | spin_lock_irq(ioa_cfg->host->host_lock); | |
788 | } | |
789 | ||
790 | /** | |
791 | * ipr_send_hcam - Send an HCAM to the adapter. | |
792 | * @ioa_cfg: ioa config struct | |
793 | * @type: HCAM type | |
794 | * @hostrcb: hostrcb struct | |
795 | * | |
796 | * This function will send a Host Controlled Async command to the adapter. | |
797 | * If HCAMs are currently not allowed to be issued to the adapter, it will | |
798 | * place the hostrcb on the free queue. | |
799 | * | |
800 | * Return value: | |
801 | * none | |
802 | **/ | |
803 | static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type, | |
804 | struct ipr_hostrcb *hostrcb) | |
805 | { | |
806 | struct ipr_cmnd *ipr_cmd; | |
807 | struct ipr_ioarcb *ioarcb; | |
808 | ||
809 | if (ioa_cfg->allow_cmds) { | |
810 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
811 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
812 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q); | |
813 | ||
814 | ipr_cmd->u.hostrcb = hostrcb; | |
815 | ioarcb = &ipr_cmd->ioarcb; | |
816 | ||
817 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
818 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM; | |
819 | ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC; | |
820 | ioarcb->cmd_pkt.cdb[1] = type; | |
821 | ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff; | |
822 | ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff; | |
823 | ||
824 | ioarcb->read_data_transfer_length = cpu_to_be32(sizeof(hostrcb->hcam)); | |
825 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
826 | ipr_cmd->ioadl[0].flags_and_data_len = | |
827 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(hostrcb->hcam)); | |
828 | ipr_cmd->ioadl[0].address = cpu_to_be32(hostrcb->hostrcb_dma); | |
829 | ||
830 | if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE) | |
831 | ipr_cmd->done = ipr_process_ccn; | |
832 | else | |
833 | ipr_cmd->done = ipr_process_error; | |
834 | ||
835 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR); | |
836 | ||
837 | mb(); | |
838 | writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), | |
839 | ioa_cfg->regs.ioarrin_reg); | |
840 | } else { | |
841 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); | |
842 | } | |
843 | } | |
844 | ||
845 | /** | |
846 | * ipr_init_res_entry - Initialize a resource entry struct. | |
847 | * @res: resource entry struct | |
848 | * | |
849 | * Return value: | |
850 | * none | |
851 | **/ | |
852 | static void ipr_init_res_entry(struct ipr_resource_entry *res) | |
853 | { | |
ee0a90fa | 854 | res->needs_sync_complete = 0; |
1da177e4 LT |
855 | res->in_erp = 0; |
856 | res->add_to_ml = 0; | |
857 | res->del_from_ml = 0; | |
858 | res->resetting_device = 0; | |
859 | res->sdev = NULL; | |
35a39691 | 860 | res->sata_port = NULL; |
1da177e4 LT |
861 | } |
862 | ||
863 | /** | |
864 | * ipr_handle_config_change - Handle a config change from the adapter | |
865 | * @ioa_cfg: ioa config struct | |
866 | * @hostrcb: hostrcb | |
867 | * | |
868 | * Return value: | |
869 | * none | |
870 | **/ | |
871 | static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg, | |
872 | struct ipr_hostrcb *hostrcb) | |
873 | { | |
874 | struct ipr_resource_entry *res = NULL; | |
875 | struct ipr_config_table_entry *cfgte; | |
876 | u32 is_ndn = 1; | |
877 | ||
878 | cfgte = &hostrcb->hcam.u.ccn.cfgte; | |
879 | ||
880 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
881 | if (!memcmp(&res->cfgte.res_addr, &cfgte->res_addr, | |
882 | sizeof(cfgte->res_addr))) { | |
883 | is_ndn = 0; | |
884 | break; | |
885 | } | |
886 | } | |
887 | ||
888 | if (is_ndn) { | |
889 | if (list_empty(&ioa_cfg->free_res_q)) { | |
890 | ipr_send_hcam(ioa_cfg, | |
891 | IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, | |
892 | hostrcb); | |
893 | return; | |
894 | } | |
895 | ||
896 | res = list_entry(ioa_cfg->free_res_q.next, | |
897 | struct ipr_resource_entry, queue); | |
898 | ||
899 | list_del(&res->queue); | |
900 | ipr_init_res_entry(res); | |
901 | list_add_tail(&res->queue, &ioa_cfg->used_res_q); | |
902 | } | |
903 | ||
904 | memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry)); | |
905 | ||
906 | if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) { | |
907 | if (res->sdev) { | |
1da177e4 | 908 | res->del_from_ml = 1; |
1121b794 | 909 | res->cfgte.res_handle = IPR_INVALID_RES_HANDLE; |
1da177e4 LT |
910 | if (ioa_cfg->allow_ml_add_del) |
911 | schedule_work(&ioa_cfg->work_q); | |
912 | } else | |
913 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); | |
914 | } else if (!res->sdev) { | |
915 | res->add_to_ml = 1; | |
916 | if (ioa_cfg->allow_ml_add_del) | |
917 | schedule_work(&ioa_cfg->work_q); | |
918 | } | |
919 | ||
920 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); | |
921 | } | |
922 | ||
923 | /** | |
924 | * ipr_process_ccn - Op done function for a CCN. | |
925 | * @ipr_cmd: ipr command struct | |
926 | * | |
927 | * This function is the op done function for a configuration | |
928 | * change notification host controlled async from the adapter. | |
929 | * | |
930 | * Return value: | |
931 | * none | |
932 | **/ | |
933 | static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd) | |
934 | { | |
935 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
936 | struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; | |
937 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
938 | ||
939 | list_del(&hostrcb->queue); | |
940 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
941 | ||
942 | if (ioasc) { | |
943 | if (ioasc != IPR_IOASC_IOA_WAS_RESET) | |
944 | dev_err(&ioa_cfg->pdev->dev, | |
945 | "Host RCB failed with IOASC: 0x%08X\n", ioasc); | |
946 | ||
947 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); | |
948 | } else { | |
949 | ipr_handle_config_change(ioa_cfg, hostrcb); | |
950 | } | |
951 | } | |
952 | ||
953 | /** | |
954 | * ipr_log_vpd - Log the passed VPD to the error log. | |
cfc32139 | 955 | * @vpd: vendor/product id/sn struct |
1da177e4 LT |
956 | * |
957 | * Return value: | |
958 | * none | |
959 | **/ | |
cfc32139 | 960 | static void ipr_log_vpd(struct ipr_vpd *vpd) |
1da177e4 LT |
961 | { |
962 | char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN | |
963 | + IPR_SERIAL_NUM_LEN]; | |
964 | ||
cfc32139 | 965 | memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); |
966 | memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id, | |
1da177e4 LT |
967 | IPR_PROD_ID_LEN); |
968 | buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0'; | |
969 | ipr_err("Vendor/Product ID: %s\n", buffer); | |
970 | ||
cfc32139 | 971 | memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN); |
1da177e4 LT |
972 | buffer[IPR_SERIAL_NUM_LEN] = '\0'; |
973 | ipr_err(" Serial Number: %s\n", buffer); | |
974 | } | |
975 | ||
ee0f05b8 | 976 | /** |
977 | * ipr_log_ext_vpd - Log the passed extended VPD to the error log. | |
978 | * @vpd: vendor/product id/sn/wwn struct | |
979 | * | |
980 | * Return value: | |
981 | * none | |
982 | **/ | |
983 | static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd) | |
984 | { | |
985 | ipr_log_vpd(&vpd->vpd); | |
986 | ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]), | |
987 | be32_to_cpu(vpd->wwid[1])); | |
988 | } | |
989 | ||
990 | /** | |
991 | * ipr_log_enhanced_cache_error - Log a cache error. | |
992 | * @ioa_cfg: ioa config struct | |
993 | * @hostrcb: hostrcb struct | |
994 | * | |
995 | * Return value: | |
996 | * none | |
997 | **/ | |
998 | static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg, | |
999 | struct ipr_hostrcb *hostrcb) | |
1000 | { | |
1001 | struct ipr_hostrcb_type_12_error *error = | |
1002 | &hostrcb->hcam.u.error.u.type_12_error; | |
1003 | ||
1004 | ipr_err("-----Current Configuration-----\n"); | |
1005 | ipr_err("Cache Directory Card Information:\n"); | |
1006 | ipr_log_ext_vpd(&error->ioa_vpd); | |
1007 | ipr_err("Adapter Card Information:\n"); | |
1008 | ipr_log_ext_vpd(&error->cfc_vpd); | |
1009 | ||
1010 | ipr_err("-----Expected Configuration-----\n"); | |
1011 | ipr_err("Cache Directory Card Information:\n"); | |
1012 | ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd); | |
1013 | ipr_err("Adapter Card Information:\n"); | |
1014 | ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd); | |
1015 | ||
1016 | ipr_err("Additional IOA Data: %08X %08X %08X\n", | |
1017 | be32_to_cpu(error->ioa_data[0]), | |
1018 | be32_to_cpu(error->ioa_data[1]), | |
1019 | be32_to_cpu(error->ioa_data[2])); | |
1020 | } | |
1021 | ||
1da177e4 LT |
1022 | /** |
1023 | * ipr_log_cache_error - Log a cache error. | |
1024 | * @ioa_cfg: ioa config struct | |
1025 | * @hostrcb: hostrcb struct | |
1026 | * | |
1027 | * Return value: | |
1028 | * none | |
1029 | **/ | |
1030 | static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg, | |
1031 | struct ipr_hostrcb *hostrcb) | |
1032 | { | |
1033 | struct ipr_hostrcb_type_02_error *error = | |
1034 | &hostrcb->hcam.u.error.u.type_02_error; | |
1035 | ||
1036 | ipr_err("-----Current Configuration-----\n"); | |
1037 | ipr_err("Cache Directory Card Information:\n"); | |
cfc32139 | 1038 | ipr_log_vpd(&error->ioa_vpd); |
1da177e4 | 1039 | ipr_err("Adapter Card Information:\n"); |
cfc32139 | 1040 | ipr_log_vpd(&error->cfc_vpd); |
1da177e4 LT |
1041 | |
1042 | ipr_err("-----Expected Configuration-----\n"); | |
1043 | ipr_err("Cache Directory Card Information:\n"); | |
cfc32139 | 1044 | ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd); |
1da177e4 | 1045 | ipr_err("Adapter Card Information:\n"); |
cfc32139 | 1046 | ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd); |
1da177e4 LT |
1047 | |
1048 | ipr_err("Additional IOA Data: %08X %08X %08X\n", | |
1049 | be32_to_cpu(error->ioa_data[0]), | |
1050 | be32_to_cpu(error->ioa_data[1]), | |
1051 | be32_to_cpu(error->ioa_data[2])); | |
1052 | } | |
1053 | ||
ee0f05b8 | 1054 | /** |
1055 | * ipr_log_enhanced_config_error - Log a configuration error. | |
1056 | * @ioa_cfg: ioa config struct | |
1057 | * @hostrcb: hostrcb struct | |
1058 | * | |
1059 | * Return value: | |
1060 | * none | |
1061 | **/ | |
1062 | static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg, | |
1063 | struct ipr_hostrcb *hostrcb) | |
1064 | { | |
1065 | int errors_logged, i; | |
1066 | struct ipr_hostrcb_device_data_entry_enhanced *dev_entry; | |
1067 | struct ipr_hostrcb_type_13_error *error; | |
1068 | ||
1069 | error = &hostrcb->hcam.u.error.u.type_13_error; | |
1070 | errors_logged = be32_to_cpu(error->errors_logged); | |
1071 | ||
1072 | ipr_err("Device Errors Detected/Logged: %d/%d\n", | |
1073 | be32_to_cpu(error->errors_detected), errors_logged); | |
1074 | ||
1075 | dev_entry = error->dev; | |
1076 | ||
1077 | for (i = 0; i < errors_logged; i++, dev_entry++) { | |
1078 | ipr_err_separator; | |
1079 | ||
1080 | ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); | |
1081 | ipr_log_ext_vpd(&dev_entry->vpd); | |
1082 | ||
1083 | ipr_err("-----New Device Information-----\n"); | |
1084 | ipr_log_ext_vpd(&dev_entry->new_vpd); | |
1085 | ||
1086 | ipr_err("Cache Directory Card Information:\n"); | |
1087 | ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); | |
1088 | ||
1089 | ipr_err("Adapter Card Information:\n"); | |
1090 | ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); | |
1091 | } | |
1092 | } | |
1093 | ||
1da177e4 LT |
1094 | /** |
1095 | * ipr_log_config_error - Log a configuration error. | |
1096 | * @ioa_cfg: ioa config struct | |
1097 | * @hostrcb: hostrcb struct | |
1098 | * | |
1099 | * Return value: | |
1100 | * none | |
1101 | **/ | |
1102 | static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg, | |
1103 | struct ipr_hostrcb *hostrcb) | |
1104 | { | |
1105 | int errors_logged, i; | |
1106 | struct ipr_hostrcb_device_data_entry *dev_entry; | |
1107 | struct ipr_hostrcb_type_03_error *error; | |
1108 | ||
1109 | error = &hostrcb->hcam.u.error.u.type_03_error; | |
1110 | errors_logged = be32_to_cpu(error->errors_logged); | |
1111 | ||
1112 | ipr_err("Device Errors Detected/Logged: %d/%d\n", | |
1113 | be32_to_cpu(error->errors_detected), errors_logged); | |
1114 | ||
cfc32139 | 1115 | dev_entry = error->dev; |
1da177e4 LT |
1116 | |
1117 | for (i = 0; i < errors_logged; i++, dev_entry++) { | |
1118 | ipr_err_separator; | |
1119 | ||
fa15b1f6 | 1120 | ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); |
cfc32139 | 1121 | ipr_log_vpd(&dev_entry->vpd); |
1da177e4 LT |
1122 | |
1123 | ipr_err("-----New Device Information-----\n"); | |
cfc32139 | 1124 | ipr_log_vpd(&dev_entry->new_vpd); |
1da177e4 LT |
1125 | |
1126 | ipr_err("Cache Directory Card Information:\n"); | |
cfc32139 | 1127 | ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd); |
1da177e4 LT |
1128 | |
1129 | ipr_err("Adapter Card Information:\n"); | |
cfc32139 | 1130 | ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd); |
1da177e4 LT |
1131 | |
1132 | ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n", | |
1133 | be32_to_cpu(dev_entry->ioa_data[0]), | |
1134 | be32_to_cpu(dev_entry->ioa_data[1]), | |
1135 | be32_to_cpu(dev_entry->ioa_data[2]), | |
1136 | be32_to_cpu(dev_entry->ioa_data[3]), | |
1137 | be32_to_cpu(dev_entry->ioa_data[4])); | |
1138 | } | |
1139 | } | |
1140 | ||
ee0f05b8 | 1141 | /** |
1142 | * ipr_log_enhanced_array_error - Log an array configuration error. | |
1143 | * @ioa_cfg: ioa config struct | |
1144 | * @hostrcb: hostrcb struct | |
1145 | * | |
1146 | * Return value: | |
1147 | * none | |
1148 | **/ | |
1149 | static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg, | |
1150 | struct ipr_hostrcb *hostrcb) | |
1151 | { | |
1152 | int i, num_entries; | |
1153 | struct ipr_hostrcb_type_14_error *error; | |
1154 | struct ipr_hostrcb_array_data_entry_enhanced *array_entry; | |
1155 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; | |
1156 | ||
1157 | error = &hostrcb->hcam.u.error.u.type_14_error; | |
1158 | ||
1159 | ipr_err_separator; | |
1160 | ||
1161 | ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", | |
1162 | error->protection_level, | |
1163 | ioa_cfg->host->host_no, | |
1164 | error->last_func_vset_res_addr.bus, | |
1165 | error->last_func_vset_res_addr.target, | |
1166 | error->last_func_vset_res_addr.lun); | |
1167 | ||
1168 | ipr_err_separator; | |
1169 | ||
1170 | array_entry = error->array_member; | |
1171 | num_entries = min_t(u32, be32_to_cpu(error->num_entries), | |
1172 | sizeof(error->array_member)); | |
1173 | ||
1174 | for (i = 0; i < num_entries; i++, array_entry++) { | |
1175 | if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) | |
1176 | continue; | |
1177 | ||
1178 | if (be32_to_cpu(error->exposed_mode_adn) == i) | |
1179 | ipr_err("Exposed Array Member %d:\n", i); | |
1180 | else | |
1181 | ipr_err("Array Member %d:\n", i); | |
1182 | ||
1183 | ipr_log_ext_vpd(&array_entry->vpd); | |
1184 | ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); | |
1185 | ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, | |
1186 | "Expected Location"); | |
1187 | ||
1188 | ipr_err_separator; | |
1189 | } | |
1190 | } | |
1191 | ||
1da177e4 LT |
1192 | /** |
1193 | * ipr_log_array_error - Log an array configuration error. | |
1194 | * @ioa_cfg: ioa config struct | |
1195 | * @hostrcb: hostrcb struct | |
1196 | * | |
1197 | * Return value: | |
1198 | * none | |
1199 | **/ | |
1200 | static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg, | |
1201 | struct ipr_hostrcb *hostrcb) | |
1202 | { | |
1203 | int i; | |
1204 | struct ipr_hostrcb_type_04_error *error; | |
1205 | struct ipr_hostrcb_array_data_entry *array_entry; | |
1206 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; | |
1207 | ||
1208 | error = &hostrcb->hcam.u.error.u.type_04_error; | |
1209 | ||
1210 | ipr_err_separator; | |
1211 | ||
1212 | ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", | |
1213 | error->protection_level, | |
1214 | ioa_cfg->host->host_no, | |
1215 | error->last_func_vset_res_addr.bus, | |
1216 | error->last_func_vset_res_addr.target, | |
1217 | error->last_func_vset_res_addr.lun); | |
1218 | ||
1219 | ipr_err_separator; | |
1220 | ||
1221 | array_entry = error->array_member; | |
1222 | ||
1223 | for (i = 0; i < 18; i++) { | |
cfc32139 | 1224 | if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) |
1da177e4 LT |
1225 | continue; |
1226 | ||
fa15b1f6 | 1227 | if (be32_to_cpu(error->exposed_mode_adn) == i) |
1da177e4 | 1228 | ipr_err("Exposed Array Member %d:\n", i); |
fa15b1f6 | 1229 | else |
1da177e4 | 1230 | ipr_err("Array Member %d:\n", i); |
1da177e4 | 1231 | |
cfc32139 | 1232 | ipr_log_vpd(&array_entry->vpd); |
1da177e4 | 1233 | |
fa15b1f6 | 1234 | ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); |
1235 | ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, | |
1236 | "Expected Location"); | |
1da177e4 LT |
1237 | |
1238 | ipr_err_separator; | |
1239 | ||
1240 | if (i == 9) | |
1241 | array_entry = error->array_member2; | |
1242 | else | |
1243 | array_entry++; | |
1244 | } | |
1245 | } | |
1246 | ||
1247 | /** | |
b0df54bb | 1248 | * ipr_log_hex_data - Log additional hex IOA error data. |
ac719aba | 1249 | * @ioa_cfg: ioa config struct |
b0df54bb | 1250 | * @data: IOA error data |
1251 | * @len: data length | |
1da177e4 LT |
1252 | * |
1253 | * Return value: | |
1254 | * none | |
1255 | **/ | |
ac719aba | 1256 | static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len) |
1da177e4 LT |
1257 | { |
1258 | int i; | |
1da177e4 | 1259 | |
b0df54bb | 1260 | if (len == 0) |
1da177e4 LT |
1261 | return; |
1262 | ||
ac719aba BK |
1263 | if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL) |
1264 | len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP); | |
1265 | ||
b0df54bb | 1266 | for (i = 0; i < len / 4; i += 4) { |
1da177e4 | 1267 | ipr_err("%08X: %08X %08X %08X %08X\n", i*4, |
b0df54bb | 1268 | be32_to_cpu(data[i]), |
1269 | be32_to_cpu(data[i+1]), | |
1270 | be32_to_cpu(data[i+2]), | |
1271 | be32_to_cpu(data[i+3])); | |
1da177e4 LT |
1272 | } |
1273 | } | |
1274 | ||
ee0f05b8 | 1275 | /** |
1276 | * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error. | |
1277 | * @ioa_cfg: ioa config struct | |
1278 | * @hostrcb: hostrcb struct | |
1279 | * | |
1280 | * Return value: | |
1281 | * none | |
1282 | **/ | |
1283 | static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, | |
1284 | struct ipr_hostrcb *hostrcb) | |
1285 | { | |
1286 | struct ipr_hostrcb_type_17_error *error; | |
1287 | ||
1288 | error = &hostrcb->hcam.u.error.u.type_17_error; | |
1289 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; | |
1290 | ||
1291 | ipr_err("%s\n", error->failure_reason); | |
1292 | ipr_err("Remote Adapter VPD:\n"); | |
1293 | ipr_log_ext_vpd(&error->vpd); | |
ac719aba | 1294 | ipr_log_hex_data(ioa_cfg, error->data, |
ee0f05b8 | 1295 | be32_to_cpu(hostrcb->hcam.length) - |
1296 | (offsetof(struct ipr_hostrcb_error, u) + | |
1297 | offsetof(struct ipr_hostrcb_type_17_error, data))); | |
1298 | } | |
1299 | ||
b0df54bb | 1300 | /** |
1301 | * ipr_log_dual_ioa_error - Log a dual adapter error. | |
1302 | * @ioa_cfg: ioa config struct | |
1303 | * @hostrcb: hostrcb struct | |
1304 | * | |
1305 | * Return value: | |
1306 | * none | |
1307 | **/ | |
1308 | static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, | |
1309 | struct ipr_hostrcb *hostrcb) | |
1310 | { | |
1311 | struct ipr_hostrcb_type_07_error *error; | |
1312 | ||
1313 | error = &hostrcb->hcam.u.error.u.type_07_error; | |
1314 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; | |
1315 | ||
1316 | ipr_err("%s\n", error->failure_reason); | |
1317 | ipr_err("Remote Adapter VPD:\n"); | |
1318 | ipr_log_vpd(&error->vpd); | |
ac719aba | 1319 | ipr_log_hex_data(ioa_cfg, error->data, |
b0df54bb | 1320 | be32_to_cpu(hostrcb->hcam.length) - |
1321 | (offsetof(struct ipr_hostrcb_error, u) + | |
1322 | offsetof(struct ipr_hostrcb_type_07_error, data))); | |
1323 | } | |
1324 | ||
49dc6a18 BK |
1325 | static const struct { |
1326 | u8 active; | |
1327 | char *desc; | |
1328 | } path_active_desc[] = { | |
1329 | { IPR_PATH_NO_INFO, "Path" }, | |
1330 | { IPR_PATH_ACTIVE, "Active path" }, | |
1331 | { IPR_PATH_NOT_ACTIVE, "Inactive path" } | |
1332 | }; | |
1333 | ||
1334 | static const struct { | |
1335 | u8 state; | |
1336 | char *desc; | |
1337 | } path_state_desc[] = { | |
1338 | { IPR_PATH_STATE_NO_INFO, "has no path state information available" }, | |
1339 | { IPR_PATH_HEALTHY, "is healthy" }, | |
1340 | { IPR_PATH_DEGRADED, "is degraded" }, | |
1341 | { IPR_PATH_FAILED, "is failed" } | |
1342 | }; | |
1343 | ||
1344 | /** | |
1345 | * ipr_log_fabric_path - Log a fabric path error | |
1346 | * @hostrcb: hostrcb struct | |
1347 | * @fabric: fabric descriptor | |
1348 | * | |
1349 | * Return value: | |
1350 | * none | |
1351 | **/ | |
1352 | static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb, | |
1353 | struct ipr_hostrcb_fabric_desc *fabric) | |
1354 | { | |
1355 | int i, j; | |
1356 | u8 path_state = fabric->path_state; | |
1357 | u8 active = path_state & IPR_PATH_ACTIVE_MASK; | |
1358 | u8 state = path_state & IPR_PATH_STATE_MASK; | |
1359 | ||
1360 | for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { | |
1361 | if (path_active_desc[i].active != active) | |
1362 | continue; | |
1363 | ||
1364 | for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { | |
1365 | if (path_state_desc[j].state != state) | |
1366 | continue; | |
1367 | ||
1368 | if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) { | |
1369 | ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n", | |
1370 | path_active_desc[i].desc, path_state_desc[j].desc, | |
1371 | fabric->ioa_port); | |
1372 | } else if (fabric->cascaded_expander == 0xff) { | |
1373 | ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n", | |
1374 | path_active_desc[i].desc, path_state_desc[j].desc, | |
1375 | fabric->ioa_port, fabric->phy); | |
1376 | } else if (fabric->phy == 0xff) { | |
1377 | ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n", | |
1378 | path_active_desc[i].desc, path_state_desc[j].desc, | |
1379 | fabric->ioa_port, fabric->cascaded_expander); | |
1380 | } else { | |
1381 | ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n", | |
1382 | path_active_desc[i].desc, path_state_desc[j].desc, | |
1383 | fabric->ioa_port, fabric->cascaded_expander, fabric->phy); | |
1384 | } | |
1385 | return; | |
1386 | } | |
1387 | } | |
1388 | ||
1389 | ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state, | |
1390 | fabric->ioa_port, fabric->cascaded_expander, fabric->phy); | |
1391 | } | |
1392 | ||
1393 | static const struct { | |
1394 | u8 type; | |
1395 | char *desc; | |
1396 | } path_type_desc[] = { | |
1397 | { IPR_PATH_CFG_IOA_PORT, "IOA port" }, | |
1398 | { IPR_PATH_CFG_EXP_PORT, "Expander port" }, | |
1399 | { IPR_PATH_CFG_DEVICE_PORT, "Device port" }, | |
1400 | { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" } | |
1401 | }; | |
1402 | ||
1403 | static const struct { | |
1404 | u8 status; | |
1405 | char *desc; | |
1406 | } path_status_desc[] = { | |
1407 | { IPR_PATH_CFG_NO_PROB, "Functional" }, | |
1408 | { IPR_PATH_CFG_DEGRADED, "Degraded" }, | |
1409 | { IPR_PATH_CFG_FAILED, "Failed" }, | |
1410 | { IPR_PATH_CFG_SUSPECT, "Suspect" }, | |
1411 | { IPR_PATH_NOT_DETECTED, "Missing" }, | |
1412 | { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" } | |
1413 | }; | |
1414 | ||
1415 | static const char *link_rate[] = { | |
1416 | "unknown", | |
1417 | "disabled", | |
1418 | "phy reset problem", | |
1419 | "spinup hold", | |
1420 | "port selector", | |
1421 | "unknown", | |
1422 | "unknown", | |
1423 | "unknown", | |
1424 | "1.5Gbps", | |
1425 | "3.0Gbps", | |
1426 | "unknown", | |
1427 | "unknown", | |
1428 | "unknown", | |
1429 | "unknown", | |
1430 | "unknown", | |
1431 | "unknown" | |
1432 | }; | |
1433 | ||
1434 | /** | |
1435 | * ipr_log_path_elem - Log a fabric path element. | |
1436 | * @hostrcb: hostrcb struct | |
1437 | * @cfg: fabric path element struct | |
1438 | * | |
1439 | * Return value: | |
1440 | * none | |
1441 | **/ | |
1442 | static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb, | |
1443 | struct ipr_hostrcb_config_element *cfg) | |
1444 | { | |
1445 | int i, j; | |
1446 | u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; | |
1447 | u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; | |
1448 | ||
1449 | if (type == IPR_PATH_CFG_NOT_EXIST) | |
1450 | return; | |
1451 | ||
1452 | for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { | |
1453 | if (path_type_desc[i].type != type) | |
1454 | continue; | |
1455 | ||
1456 | for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { | |
1457 | if (path_status_desc[j].status != status) | |
1458 | continue; | |
1459 | ||
1460 | if (type == IPR_PATH_CFG_IOA_PORT) { | |
1461 | ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n", | |
1462 | path_status_desc[j].desc, path_type_desc[i].desc, | |
1463 | cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], | |
1464 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); | |
1465 | } else { | |
1466 | if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) { | |
1467 | ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n", | |
1468 | path_status_desc[j].desc, path_type_desc[i].desc, | |
1469 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], | |
1470 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); | |
1471 | } else if (cfg->cascaded_expander == 0xff) { | |
1472 | ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, " | |
1473 | "WWN=%08X%08X\n", path_status_desc[j].desc, | |
1474 | path_type_desc[i].desc, cfg->phy, | |
1475 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], | |
1476 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); | |
1477 | } else if (cfg->phy == 0xff) { | |
1478 | ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, " | |
1479 | "WWN=%08X%08X\n", path_status_desc[j].desc, | |
1480 | path_type_desc[i].desc, cfg->cascaded_expander, | |
1481 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], | |
1482 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); | |
1483 | } else { | |
1484 | ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s " | |
1485 | "WWN=%08X%08X\n", path_status_desc[j].desc, | |
1486 | path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy, | |
1487 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], | |
1488 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); | |
1489 | } | |
1490 | } | |
1491 | return; | |
1492 | } | |
1493 | } | |
1494 | ||
1495 | ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s " | |
1496 | "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy, | |
1497 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], | |
1498 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); | |
1499 | } | |
1500 | ||
1501 | /** | |
1502 | * ipr_log_fabric_error - Log a fabric error. | |
1503 | * @ioa_cfg: ioa config struct | |
1504 | * @hostrcb: hostrcb struct | |
1505 | * | |
1506 | * Return value: | |
1507 | * none | |
1508 | **/ | |
1509 | static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg, | |
1510 | struct ipr_hostrcb *hostrcb) | |
1511 | { | |
1512 | struct ipr_hostrcb_type_20_error *error; | |
1513 | struct ipr_hostrcb_fabric_desc *fabric; | |
1514 | struct ipr_hostrcb_config_element *cfg; | |
1515 | int i, add_len; | |
1516 | ||
1517 | error = &hostrcb->hcam.u.error.u.type_20_error; | |
1518 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; | |
1519 | ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); | |
1520 | ||
1521 | add_len = be32_to_cpu(hostrcb->hcam.length) - | |
1522 | (offsetof(struct ipr_hostrcb_error, u) + | |
1523 | offsetof(struct ipr_hostrcb_type_20_error, desc)); | |
1524 | ||
1525 | for (i = 0, fabric = error->desc; i < error->num_entries; i++) { | |
1526 | ipr_log_fabric_path(hostrcb, fabric); | |
1527 | for_each_fabric_cfg(fabric, cfg) | |
1528 | ipr_log_path_elem(hostrcb, cfg); | |
1529 | ||
1530 | add_len -= be16_to_cpu(fabric->length); | |
1531 | fabric = (struct ipr_hostrcb_fabric_desc *) | |
1532 | ((unsigned long)fabric + be16_to_cpu(fabric->length)); | |
1533 | } | |
1534 | ||
ac719aba | 1535 | ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len); |
49dc6a18 BK |
1536 | } |
1537 | ||
b0df54bb | 1538 | /** |
1539 | * ipr_log_generic_error - Log an adapter error. | |
1540 | * @ioa_cfg: ioa config struct | |
1541 | * @hostrcb: hostrcb struct | |
1542 | * | |
1543 | * Return value: | |
1544 | * none | |
1545 | **/ | |
1546 | static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg, | |
1547 | struct ipr_hostrcb *hostrcb) | |
1548 | { | |
ac719aba | 1549 | ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data, |
b0df54bb | 1550 | be32_to_cpu(hostrcb->hcam.length)); |
1551 | } | |
1552 | ||
1da177e4 LT |
1553 | /** |
1554 | * ipr_get_error - Find the specfied IOASC in the ipr_error_table. | |
1555 | * @ioasc: IOASC | |
1556 | * | |
1557 | * This function will return the index of into the ipr_error_table | |
1558 | * for the specified IOASC. If the IOASC is not in the table, | |
1559 | * 0 will be returned, which points to the entry used for unknown errors. | |
1560 | * | |
1561 | * Return value: | |
1562 | * index into the ipr_error_table | |
1563 | **/ | |
1564 | static u32 ipr_get_error(u32 ioasc) | |
1565 | { | |
1566 | int i; | |
1567 | ||
1568 | for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++) | |
35a39691 | 1569 | if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK)) |
1da177e4 LT |
1570 | return i; |
1571 | ||
1572 | return 0; | |
1573 | } | |
1574 | ||
1575 | /** | |
1576 | * ipr_handle_log_data - Log an adapter error. | |
1577 | * @ioa_cfg: ioa config struct | |
1578 | * @hostrcb: hostrcb struct | |
1579 | * | |
1580 | * This function logs an adapter error to the system. | |
1581 | * | |
1582 | * Return value: | |
1583 | * none | |
1584 | **/ | |
1585 | static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg, | |
1586 | struct ipr_hostrcb *hostrcb) | |
1587 | { | |
1588 | u32 ioasc; | |
1589 | int error_index; | |
1590 | ||
1591 | if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY) | |
1592 | return; | |
1593 | ||
1594 | if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST) | |
1595 | dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n"); | |
1596 | ||
1597 | ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc); | |
1598 | ||
1599 | if (ioasc == IPR_IOASC_BUS_WAS_RESET || | |
1600 | ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER) { | |
1601 | /* Tell the midlayer we had a bus reset so it will handle the UA properly */ | |
1602 | scsi_report_bus_reset(ioa_cfg->host, | |
1603 | hostrcb->hcam.u.error.failing_dev_res_addr.bus); | |
1604 | } | |
1605 | ||
1606 | error_index = ipr_get_error(ioasc); | |
1607 | ||
1608 | if (!ipr_error_table[error_index].log_hcam) | |
1609 | return; | |
1610 | ||
49dc6a18 | 1611 | ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error); |
1da177e4 LT |
1612 | |
1613 | /* Set indication we have logged an error */ | |
1614 | ioa_cfg->errors_logged++; | |
1615 | ||
933916f3 | 1616 | if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam) |
1da177e4 | 1617 | return; |
cf852037 | 1618 | if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw)) |
1619 | hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw)); | |
1da177e4 LT |
1620 | |
1621 | switch (hostrcb->hcam.overlay_id) { | |
1da177e4 LT |
1622 | case IPR_HOST_RCB_OVERLAY_ID_2: |
1623 | ipr_log_cache_error(ioa_cfg, hostrcb); | |
1624 | break; | |
1625 | case IPR_HOST_RCB_OVERLAY_ID_3: | |
1626 | ipr_log_config_error(ioa_cfg, hostrcb); | |
1627 | break; | |
1628 | case IPR_HOST_RCB_OVERLAY_ID_4: | |
1629 | case IPR_HOST_RCB_OVERLAY_ID_6: | |
1630 | ipr_log_array_error(ioa_cfg, hostrcb); | |
1631 | break; | |
b0df54bb | 1632 | case IPR_HOST_RCB_OVERLAY_ID_7: |
1633 | ipr_log_dual_ioa_error(ioa_cfg, hostrcb); | |
1634 | break; | |
ee0f05b8 | 1635 | case IPR_HOST_RCB_OVERLAY_ID_12: |
1636 | ipr_log_enhanced_cache_error(ioa_cfg, hostrcb); | |
1637 | break; | |
1638 | case IPR_HOST_RCB_OVERLAY_ID_13: | |
1639 | ipr_log_enhanced_config_error(ioa_cfg, hostrcb); | |
1640 | break; | |
1641 | case IPR_HOST_RCB_OVERLAY_ID_14: | |
1642 | case IPR_HOST_RCB_OVERLAY_ID_16: | |
1643 | ipr_log_enhanced_array_error(ioa_cfg, hostrcb); | |
1644 | break; | |
1645 | case IPR_HOST_RCB_OVERLAY_ID_17: | |
1646 | ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb); | |
1647 | break; | |
49dc6a18 BK |
1648 | case IPR_HOST_RCB_OVERLAY_ID_20: |
1649 | ipr_log_fabric_error(ioa_cfg, hostrcb); | |
1650 | break; | |
cf852037 | 1651 | case IPR_HOST_RCB_OVERLAY_ID_1: |
1da177e4 | 1652 | case IPR_HOST_RCB_OVERLAY_ID_DEFAULT: |
1da177e4 | 1653 | default: |
a9cfca96 | 1654 | ipr_log_generic_error(ioa_cfg, hostrcb); |
1da177e4 LT |
1655 | break; |
1656 | } | |
1657 | } | |
1658 | ||
1659 | /** | |
1660 | * ipr_process_error - Op done function for an adapter error log. | |
1661 | * @ipr_cmd: ipr command struct | |
1662 | * | |
1663 | * This function is the op done function for an error log host | |
1664 | * controlled async from the adapter. It will log the error and | |
1665 | * send the HCAM back to the adapter. | |
1666 | * | |
1667 | * Return value: | |
1668 | * none | |
1669 | **/ | |
1670 | static void ipr_process_error(struct ipr_cmnd *ipr_cmd) | |
1671 | { | |
1672 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
1673 | struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; | |
1674 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
1675 | ||
1676 | list_del(&hostrcb->queue); | |
1677 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
1678 | ||
1679 | if (!ioasc) { | |
1680 | ipr_handle_log_data(ioa_cfg, hostrcb); | |
1681 | } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) { | |
1682 | dev_err(&ioa_cfg->pdev->dev, | |
1683 | "Host RCB failed with IOASC: 0x%08X\n", ioasc); | |
1684 | } | |
1685 | ||
1686 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); | |
1687 | } | |
1688 | ||
1689 | /** | |
1690 | * ipr_timeout - An internally generated op has timed out. | |
1691 | * @ipr_cmd: ipr command struct | |
1692 | * | |
1693 | * This function blocks host requests and initiates an | |
1694 | * adapter reset. | |
1695 | * | |
1696 | * Return value: | |
1697 | * none | |
1698 | **/ | |
1699 | static void ipr_timeout(struct ipr_cmnd *ipr_cmd) | |
1700 | { | |
1701 | unsigned long lock_flags = 0; | |
1702 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
1703 | ||
1704 | ENTER; | |
1705 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1706 | ||
1707 | ioa_cfg->errors_logged++; | |
1708 | dev_err(&ioa_cfg->pdev->dev, | |
1709 | "Adapter being reset due to command timeout.\n"); | |
1710 | ||
1711 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
1712 | ioa_cfg->sdt_state = GET_DUMP; | |
1713 | ||
1714 | if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) | |
1715 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
1716 | ||
1717 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1718 | LEAVE; | |
1719 | } | |
1720 | ||
1721 | /** | |
1722 | * ipr_oper_timeout - Adapter timed out transitioning to operational | |
1723 | * @ipr_cmd: ipr command struct | |
1724 | * | |
1725 | * This function blocks host requests and initiates an | |
1726 | * adapter reset. | |
1727 | * | |
1728 | * Return value: | |
1729 | * none | |
1730 | **/ | |
1731 | static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd) | |
1732 | { | |
1733 | unsigned long lock_flags = 0; | |
1734 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
1735 | ||
1736 | ENTER; | |
1737 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1738 | ||
1739 | ioa_cfg->errors_logged++; | |
1740 | dev_err(&ioa_cfg->pdev->dev, | |
1741 | "Adapter timed out transitioning to operational.\n"); | |
1742 | ||
1743 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
1744 | ioa_cfg->sdt_state = GET_DUMP; | |
1745 | ||
1746 | if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) { | |
1747 | if (ipr_fastfail) | |
1748 | ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; | |
1749 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
1750 | } | |
1751 | ||
1752 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1753 | LEAVE; | |
1754 | } | |
1755 | ||
1756 | /** | |
1757 | * ipr_reset_reload - Reset/Reload the IOA | |
1758 | * @ioa_cfg: ioa config struct | |
1759 | * @shutdown_type: shutdown type | |
1760 | * | |
1761 | * This function resets the adapter and re-initializes it. | |
1762 | * This function assumes that all new host commands have been stopped. | |
1763 | * Return value: | |
1764 | * SUCCESS / FAILED | |
1765 | **/ | |
1766 | static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg, | |
1767 | enum ipr_shutdown_type shutdown_type) | |
1768 | { | |
1769 | if (!ioa_cfg->in_reset_reload) | |
1770 | ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); | |
1771 | ||
1772 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
1773 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
1774 | spin_lock_irq(ioa_cfg->host->host_lock); | |
1775 | ||
1776 | /* If we got hit with a host reset while we were already resetting | |
1777 | the adapter for some reason, and the reset failed. */ | |
1778 | if (ioa_cfg->ioa_is_dead) { | |
1779 | ipr_trace; | |
1780 | return FAILED; | |
1781 | } | |
1782 | ||
1783 | return SUCCESS; | |
1784 | } | |
1785 | ||
1786 | /** | |
1787 | * ipr_find_ses_entry - Find matching SES in SES table | |
1788 | * @res: resource entry struct of SES | |
1789 | * | |
1790 | * Return value: | |
1791 | * pointer to SES table entry / NULL on failure | |
1792 | **/ | |
1793 | static const struct ipr_ses_table_entry * | |
1794 | ipr_find_ses_entry(struct ipr_resource_entry *res) | |
1795 | { | |
1796 | int i, j, matches; | |
1797 | const struct ipr_ses_table_entry *ste = ipr_ses_table; | |
1798 | ||
1799 | for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) { | |
1800 | for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) { | |
1801 | if (ste->compare_product_id_byte[j] == 'X') { | |
1802 | if (res->cfgte.std_inq_data.vpids.product_id[j] == ste->product_id[j]) | |
1803 | matches++; | |
1804 | else | |
1805 | break; | |
1806 | } else | |
1807 | matches++; | |
1808 | } | |
1809 | ||
1810 | if (matches == IPR_PROD_ID_LEN) | |
1811 | return ste; | |
1812 | } | |
1813 | ||
1814 | return NULL; | |
1815 | } | |
1816 | ||
1817 | /** | |
1818 | * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus | |
1819 | * @ioa_cfg: ioa config struct | |
1820 | * @bus: SCSI bus | |
1821 | * @bus_width: bus width | |
1822 | * | |
1823 | * Return value: | |
1824 | * SCSI bus speed in units of 100KHz, 1600 is 160 MHz | |
1825 | * For a 2-byte wide SCSI bus, the maximum transfer speed is | |
1826 | * twice the maximum transfer rate (e.g. for a wide enabled bus, | |
1827 | * max 160MHz = max 320MB/sec). | |
1828 | **/ | |
1829 | static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width) | |
1830 | { | |
1831 | struct ipr_resource_entry *res; | |
1832 | const struct ipr_ses_table_entry *ste; | |
1833 | u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width); | |
1834 | ||
1835 | /* Loop through each config table entry in the config table buffer */ | |
1836 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
1837 | if (!(IPR_IS_SES_DEVICE(res->cfgte.std_inq_data))) | |
1838 | continue; | |
1839 | ||
1840 | if (bus != res->cfgte.res_addr.bus) | |
1841 | continue; | |
1842 | ||
1843 | if (!(ste = ipr_find_ses_entry(res))) | |
1844 | continue; | |
1845 | ||
1846 | max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8); | |
1847 | } | |
1848 | ||
1849 | return max_xfer_rate; | |
1850 | } | |
1851 | ||
1852 | /** | |
1853 | * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA | |
1854 | * @ioa_cfg: ioa config struct | |
1855 | * @max_delay: max delay in micro-seconds to wait | |
1856 | * | |
1857 | * Waits for an IODEBUG ACK from the IOA, doing busy looping. | |
1858 | * | |
1859 | * Return value: | |
1860 | * 0 on success / other on failure | |
1861 | **/ | |
1862 | static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay) | |
1863 | { | |
1864 | volatile u32 pcii_reg; | |
1865 | int delay = 1; | |
1866 | ||
1867 | /* Read interrupt reg until IOA signals IO Debug Acknowledge */ | |
1868 | while (delay < max_delay) { | |
1869 | pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
1870 | ||
1871 | if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE) | |
1872 | return 0; | |
1873 | ||
1874 | /* udelay cannot be used if delay is more than a few milliseconds */ | |
1875 | if ((delay / 1000) > MAX_UDELAY_MS) | |
1876 | mdelay(delay / 1000); | |
1877 | else | |
1878 | udelay(delay); | |
1879 | ||
1880 | delay += delay; | |
1881 | } | |
1882 | return -EIO; | |
1883 | } | |
1884 | ||
1885 | /** | |
1886 | * ipr_get_ldump_data_section - Dump IOA memory | |
1887 | * @ioa_cfg: ioa config struct | |
1888 | * @start_addr: adapter address to dump | |
1889 | * @dest: destination kernel buffer | |
1890 | * @length_in_words: length to dump in 4 byte words | |
1891 | * | |
1892 | * Return value: | |
1893 | * 0 on success / -EIO on failure | |
1894 | **/ | |
1895 | static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg, | |
1896 | u32 start_addr, | |
1897 | __be32 *dest, u32 length_in_words) | |
1898 | { | |
1899 | volatile u32 temp_pcii_reg; | |
1900 | int i, delay = 0; | |
1901 | ||
1902 | /* Write IOA interrupt reg starting LDUMP state */ | |
1903 | writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT), | |
1904 | ioa_cfg->regs.set_uproc_interrupt_reg); | |
1905 | ||
1906 | /* Wait for IO debug acknowledge */ | |
1907 | if (ipr_wait_iodbg_ack(ioa_cfg, | |
1908 | IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) { | |
1909 | dev_err(&ioa_cfg->pdev->dev, | |
1910 | "IOA dump long data transfer timeout\n"); | |
1911 | return -EIO; | |
1912 | } | |
1913 | ||
1914 | /* Signal LDUMP interlocked - clear IO debug ack */ | |
1915 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, | |
1916 | ioa_cfg->regs.clr_interrupt_reg); | |
1917 | ||
1918 | /* Write Mailbox with starting address */ | |
1919 | writel(start_addr, ioa_cfg->ioa_mailbox); | |
1920 | ||
1921 | /* Signal address valid - clear IOA Reset alert */ | |
1922 | writel(IPR_UPROCI_RESET_ALERT, | |
1923 | ioa_cfg->regs.clr_uproc_interrupt_reg); | |
1924 | ||
1925 | for (i = 0; i < length_in_words; i++) { | |
1926 | /* Wait for IO debug acknowledge */ | |
1927 | if (ipr_wait_iodbg_ack(ioa_cfg, | |
1928 | IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) { | |
1929 | dev_err(&ioa_cfg->pdev->dev, | |
1930 | "IOA dump short data transfer timeout\n"); | |
1931 | return -EIO; | |
1932 | } | |
1933 | ||
1934 | /* Read data from mailbox and increment destination pointer */ | |
1935 | *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox)); | |
1936 | dest++; | |
1937 | ||
1938 | /* For all but the last word of data, signal data received */ | |
1939 | if (i < (length_in_words - 1)) { | |
1940 | /* Signal dump data received - Clear IO debug Ack */ | |
1941 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, | |
1942 | ioa_cfg->regs.clr_interrupt_reg); | |
1943 | } | |
1944 | } | |
1945 | ||
1946 | /* Signal end of block transfer. Set reset alert then clear IO debug ack */ | |
1947 | writel(IPR_UPROCI_RESET_ALERT, | |
1948 | ioa_cfg->regs.set_uproc_interrupt_reg); | |
1949 | ||
1950 | writel(IPR_UPROCI_IO_DEBUG_ALERT, | |
1951 | ioa_cfg->regs.clr_uproc_interrupt_reg); | |
1952 | ||
1953 | /* Signal dump data received - Clear IO debug Ack */ | |
1954 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, | |
1955 | ioa_cfg->regs.clr_interrupt_reg); | |
1956 | ||
1957 | /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */ | |
1958 | while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) { | |
1959 | temp_pcii_reg = | |
1960 | readl(ioa_cfg->regs.sense_uproc_interrupt_reg); | |
1961 | ||
1962 | if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT)) | |
1963 | return 0; | |
1964 | ||
1965 | udelay(10); | |
1966 | delay += 10; | |
1967 | } | |
1968 | ||
1969 | return 0; | |
1970 | } | |
1971 | ||
1972 | #ifdef CONFIG_SCSI_IPR_DUMP | |
1973 | /** | |
1974 | * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer | |
1975 | * @ioa_cfg: ioa config struct | |
1976 | * @pci_address: adapter address | |
1977 | * @length: length of data to copy | |
1978 | * | |
1979 | * Copy data from PCI adapter to kernel buffer. | |
1980 | * Note: length MUST be a 4 byte multiple | |
1981 | * Return value: | |
1982 | * 0 on success / other on failure | |
1983 | **/ | |
1984 | static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg, | |
1985 | unsigned long pci_address, u32 length) | |
1986 | { | |
1987 | int bytes_copied = 0; | |
1988 | int cur_len, rc, rem_len, rem_page_len; | |
1989 | __be32 *page; | |
1990 | unsigned long lock_flags = 0; | |
1991 | struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump; | |
1992 | ||
1993 | while (bytes_copied < length && | |
1994 | (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) { | |
1995 | if (ioa_dump->page_offset >= PAGE_SIZE || | |
1996 | ioa_dump->page_offset == 0) { | |
1997 | page = (__be32 *)__get_free_page(GFP_ATOMIC); | |
1998 | ||
1999 | if (!page) { | |
2000 | ipr_trace; | |
2001 | return bytes_copied; | |
2002 | } | |
2003 | ||
2004 | ioa_dump->page_offset = 0; | |
2005 | ioa_dump->ioa_data[ioa_dump->next_page_index] = page; | |
2006 | ioa_dump->next_page_index++; | |
2007 | } else | |
2008 | page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1]; | |
2009 | ||
2010 | rem_len = length - bytes_copied; | |
2011 | rem_page_len = PAGE_SIZE - ioa_dump->page_offset; | |
2012 | cur_len = min(rem_len, rem_page_len); | |
2013 | ||
2014 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2015 | if (ioa_cfg->sdt_state == ABORT_DUMP) { | |
2016 | rc = -EIO; | |
2017 | } else { | |
2018 | rc = ipr_get_ldump_data_section(ioa_cfg, | |
2019 | pci_address + bytes_copied, | |
2020 | &page[ioa_dump->page_offset / 4], | |
2021 | (cur_len / sizeof(u32))); | |
2022 | } | |
2023 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2024 | ||
2025 | if (!rc) { | |
2026 | ioa_dump->page_offset += cur_len; | |
2027 | bytes_copied += cur_len; | |
2028 | } else { | |
2029 | ipr_trace; | |
2030 | break; | |
2031 | } | |
2032 | schedule(); | |
2033 | } | |
2034 | ||
2035 | return bytes_copied; | |
2036 | } | |
2037 | ||
2038 | /** | |
2039 | * ipr_init_dump_entry_hdr - Initialize a dump entry header. | |
2040 | * @hdr: dump entry header struct | |
2041 | * | |
2042 | * Return value: | |
2043 | * nothing | |
2044 | **/ | |
2045 | static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr) | |
2046 | { | |
2047 | hdr->eye_catcher = IPR_DUMP_EYE_CATCHER; | |
2048 | hdr->num_elems = 1; | |
2049 | hdr->offset = sizeof(*hdr); | |
2050 | hdr->status = IPR_DUMP_STATUS_SUCCESS; | |
2051 | } | |
2052 | ||
2053 | /** | |
2054 | * ipr_dump_ioa_type_data - Fill in the adapter type in the dump. | |
2055 | * @ioa_cfg: ioa config struct | |
2056 | * @driver_dump: driver dump struct | |
2057 | * | |
2058 | * Return value: | |
2059 | * nothing | |
2060 | **/ | |
2061 | static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg, | |
2062 | struct ipr_driver_dump *driver_dump) | |
2063 | { | |
2064 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; | |
2065 | ||
2066 | ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr); | |
2067 | driver_dump->ioa_type_entry.hdr.len = | |
2068 | sizeof(struct ipr_dump_ioa_type_entry) - | |
2069 | sizeof(struct ipr_dump_entry_header); | |
2070 | driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; | |
2071 | driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID; | |
2072 | driver_dump->ioa_type_entry.type = ioa_cfg->type; | |
2073 | driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) | | |
2074 | (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) | | |
2075 | ucode_vpd->minor_release[1]; | |
2076 | driver_dump->hdr.num_entries++; | |
2077 | } | |
2078 | ||
2079 | /** | |
2080 | * ipr_dump_version_data - Fill in the driver version in the dump. | |
2081 | * @ioa_cfg: ioa config struct | |
2082 | * @driver_dump: driver dump struct | |
2083 | * | |
2084 | * Return value: | |
2085 | * nothing | |
2086 | **/ | |
2087 | static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg, | |
2088 | struct ipr_driver_dump *driver_dump) | |
2089 | { | |
2090 | ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr); | |
2091 | driver_dump->version_entry.hdr.len = | |
2092 | sizeof(struct ipr_dump_version_entry) - | |
2093 | sizeof(struct ipr_dump_entry_header); | |
2094 | driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; | |
2095 | driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID; | |
2096 | strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION); | |
2097 | driver_dump->hdr.num_entries++; | |
2098 | } | |
2099 | ||
2100 | /** | |
2101 | * ipr_dump_trace_data - Fill in the IOA trace in the dump. | |
2102 | * @ioa_cfg: ioa config struct | |
2103 | * @driver_dump: driver dump struct | |
2104 | * | |
2105 | * Return value: | |
2106 | * nothing | |
2107 | **/ | |
2108 | static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg, | |
2109 | struct ipr_driver_dump *driver_dump) | |
2110 | { | |
2111 | ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr); | |
2112 | driver_dump->trace_entry.hdr.len = | |
2113 | sizeof(struct ipr_dump_trace_entry) - | |
2114 | sizeof(struct ipr_dump_entry_header); | |
2115 | driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; | |
2116 | driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID; | |
2117 | memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE); | |
2118 | driver_dump->hdr.num_entries++; | |
2119 | } | |
2120 | ||
2121 | /** | |
2122 | * ipr_dump_location_data - Fill in the IOA location in the dump. | |
2123 | * @ioa_cfg: ioa config struct | |
2124 | * @driver_dump: driver dump struct | |
2125 | * | |
2126 | * Return value: | |
2127 | * nothing | |
2128 | **/ | |
2129 | static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg, | |
2130 | struct ipr_driver_dump *driver_dump) | |
2131 | { | |
2132 | ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr); | |
2133 | driver_dump->location_entry.hdr.len = | |
2134 | sizeof(struct ipr_dump_location_entry) - | |
2135 | sizeof(struct ipr_dump_entry_header); | |
2136 | driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; | |
2137 | driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID; | |
2138 | strcpy(driver_dump->location_entry.location, ioa_cfg->pdev->dev.bus_id); | |
2139 | driver_dump->hdr.num_entries++; | |
2140 | } | |
2141 | ||
2142 | /** | |
2143 | * ipr_get_ioa_dump - Perform a dump of the driver and adapter. | |
2144 | * @ioa_cfg: ioa config struct | |
2145 | * @dump: dump struct | |
2146 | * | |
2147 | * Return value: | |
2148 | * nothing | |
2149 | **/ | |
2150 | static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump) | |
2151 | { | |
2152 | unsigned long start_addr, sdt_word; | |
2153 | unsigned long lock_flags = 0; | |
2154 | struct ipr_driver_dump *driver_dump = &dump->driver_dump; | |
2155 | struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump; | |
2156 | u32 num_entries, start_off, end_off; | |
2157 | u32 bytes_to_copy, bytes_copied, rc; | |
2158 | struct ipr_sdt *sdt; | |
2159 | int i; | |
2160 | ||
2161 | ENTER; | |
2162 | ||
2163 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2164 | ||
2165 | if (ioa_cfg->sdt_state != GET_DUMP) { | |
2166 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2167 | return; | |
2168 | } | |
2169 | ||
2170 | start_addr = readl(ioa_cfg->ioa_mailbox); | |
2171 | ||
2172 | if (!ipr_sdt_is_fmt2(start_addr)) { | |
2173 | dev_err(&ioa_cfg->pdev->dev, | |
2174 | "Invalid dump table format: %lx\n", start_addr); | |
2175 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2176 | return; | |
2177 | } | |
2178 | ||
2179 | dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n"); | |
2180 | ||
2181 | driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER; | |
2182 | ||
2183 | /* Initialize the overall dump header */ | |
2184 | driver_dump->hdr.len = sizeof(struct ipr_driver_dump); | |
2185 | driver_dump->hdr.num_entries = 1; | |
2186 | driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header); | |
2187 | driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS; | |
2188 | driver_dump->hdr.os = IPR_DUMP_OS_LINUX; | |
2189 | driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME; | |
2190 | ||
2191 | ipr_dump_version_data(ioa_cfg, driver_dump); | |
2192 | ipr_dump_location_data(ioa_cfg, driver_dump); | |
2193 | ipr_dump_ioa_type_data(ioa_cfg, driver_dump); | |
2194 | ipr_dump_trace_data(ioa_cfg, driver_dump); | |
2195 | ||
2196 | /* Update dump_header */ | |
2197 | driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header); | |
2198 | ||
2199 | /* IOA Dump entry */ | |
2200 | ipr_init_dump_entry_hdr(&ioa_dump->hdr); | |
2201 | ioa_dump->format = IPR_SDT_FMT2; | |
2202 | ioa_dump->hdr.len = 0; | |
2203 | ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; | |
2204 | ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID; | |
2205 | ||
2206 | /* First entries in sdt are actually a list of dump addresses and | |
2207 | lengths to gather the real dump data. sdt represents the pointer | |
2208 | to the ioa generated dump table. Dump data will be extracted based | |
2209 | on entries in this table */ | |
2210 | sdt = &ioa_dump->sdt; | |
2211 | ||
2212 | rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt, | |
2213 | sizeof(struct ipr_sdt) / sizeof(__be32)); | |
2214 | ||
2215 | /* Smart Dump table is ready to use and the first entry is valid */ | |
2216 | if (rc || (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE)) { | |
2217 | dev_err(&ioa_cfg->pdev->dev, | |
2218 | "Dump of IOA failed. Dump table not valid: %d, %X.\n", | |
2219 | rc, be32_to_cpu(sdt->hdr.state)); | |
2220 | driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED; | |
2221 | ioa_cfg->sdt_state = DUMP_OBTAINED; | |
2222 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2223 | return; | |
2224 | } | |
2225 | ||
2226 | num_entries = be32_to_cpu(sdt->hdr.num_entries_used); | |
2227 | ||
2228 | if (num_entries > IPR_NUM_SDT_ENTRIES) | |
2229 | num_entries = IPR_NUM_SDT_ENTRIES; | |
2230 | ||
2231 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2232 | ||
2233 | for (i = 0; i < num_entries; i++) { | |
2234 | if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) { | |
2235 | driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; | |
2236 | break; | |
2237 | } | |
2238 | ||
2239 | if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) { | |
2240 | sdt_word = be32_to_cpu(sdt->entry[i].bar_str_offset); | |
2241 | start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK; | |
2242 | end_off = be32_to_cpu(sdt->entry[i].end_offset); | |
2243 | ||
2244 | if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) { | |
2245 | bytes_to_copy = end_off - start_off; | |
2246 | if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) { | |
2247 | sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY; | |
2248 | continue; | |
2249 | } | |
2250 | ||
2251 | /* Copy data from adapter to driver buffers */ | |
2252 | bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word, | |
2253 | bytes_to_copy); | |
2254 | ||
2255 | ioa_dump->hdr.len += bytes_copied; | |
2256 | ||
2257 | if (bytes_copied != bytes_to_copy) { | |
2258 | driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; | |
2259 | break; | |
2260 | } | |
2261 | } | |
2262 | } | |
2263 | } | |
2264 | ||
2265 | dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n"); | |
2266 | ||
2267 | /* Update dump_header */ | |
2268 | driver_dump->hdr.len += ioa_dump->hdr.len; | |
2269 | wmb(); | |
2270 | ioa_cfg->sdt_state = DUMP_OBTAINED; | |
2271 | LEAVE; | |
2272 | } | |
2273 | ||
2274 | #else | |
2275 | #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0) | |
2276 | #endif | |
2277 | ||
2278 | /** | |
2279 | * ipr_release_dump - Free adapter dump memory | |
2280 | * @kref: kref struct | |
2281 | * | |
2282 | * Return value: | |
2283 | * nothing | |
2284 | **/ | |
2285 | static void ipr_release_dump(struct kref *kref) | |
2286 | { | |
2287 | struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref); | |
2288 | struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg; | |
2289 | unsigned long lock_flags = 0; | |
2290 | int i; | |
2291 | ||
2292 | ENTER; | |
2293 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2294 | ioa_cfg->dump = NULL; | |
2295 | ioa_cfg->sdt_state = INACTIVE; | |
2296 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2297 | ||
2298 | for (i = 0; i < dump->ioa_dump.next_page_index; i++) | |
2299 | free_page((unsigned long) dump->ioa_dump.ioa_data[i]); | |
2300 | ||
2301 | kfree(dump); | |
2302 | LEAVE; | |
2303 | } | |
2304 | ||
2305 | /** | |
2306 | * ipr_worker_thread - Worker thread | |
c4028958 | 2307 | * @work: ioa config struct |
1da177e4 LT |
2308 | * |
2309 | * Called at task level from a work thread. This function takes care | |
2310 | * of adding and removing device from the mid-layer as configuration | |
2311 | * changes are detected by the adapter. | |
2312 | * | |
2313 | * Return value: | |
2314 | * nothing | |
2315 | **/ | |
c4028958 | 2316 | static void ipr_worker_thread(struct work_struct *work) |
1da177e4 LT |
2317 | { |
2318 | unsigned long lock_flags; | |
2319 | struct ipr_resource_entry *res; | |
2320 | struct scsi_device *sdev; | |
2321 | struct ipr_dump *dump; | |
c4028958 DH |
2322 | struct ipr_ioa_cfg *ioa_cfg = |
2323 | container_of(work, struct ipr_ioa_cfg, work_q); | |
1da177e4 LT |
2324 | u8 bus, target, lun; |
2325 | int did_work; | |
2326 | ||
2327 | ENTER; | |
2328 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2329 | ||
2330 | if (ioa_cfg->sdt_state == GET_DUMP) { | |
2331 | dump = ioa_cfg->dump; | |
2332 | if (!dump) { | |
2333 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2334 | return; | |
2335 | } | |
2336 | kref_get(&dump->kref); | |
2337 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2338 | ipr_get_ioa_dump(ioa_cfg, dump); | |
2339 | kref_put(&dump->kref, ipr_release_dump); | |
2340 | ||
2341 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2342 | if (ioa_cfg->sdt_state == DUMP_OBTAINED) | |
2343 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
2344 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2345 | return; | |
2346 | } | |
2347 | ||
2348 | restart: | |
2349 | do { | |
2350 | did_work = 0; | |
2351 | if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) { | |
2352 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2353 | return; | |
2354 | } | |
2355 | ||
2356 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
2357 | if (res->del_from_ml && res->sdev) { | |
2358 | did_work = 1; | |
2359 | sdev = res->sdev; | |
2360 | if (!scsi_device_get(sdev)) { | |
1da177e4 LT |
2361 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); |
2362 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2363 | scsi_remove_device(sdev); | |
2364 | scsi_device_put(sdev); | |
2365 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2366 | } | |
2367 | break; | |
2368 | } | |
2369 | } | |
2370 | } while(did_work); | |
2371 | ||
2372 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
2373 | if (res->add_to_ml) { | |
2374 | bus = res->cfgte.res_addr.bus; | |
2375 | target = res->cfgte.res_addr.target; | |
2376 | lun = res->cfgte.res_addr.lun; | |
1121b794 | 2377 | res->add_to_ml = 0; |
1da177e4 LT |
2378 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
2379 | scsi_add_device(ioa_cfg->host, bus, target, lun); | |
2380 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2381 | goto restart; | |
2382 | } | |
2383 | } | |
2384 | ||
2385 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
312c004d | 2386 | kobject_uevent(&ioa_cfg->host->shost_classdev.kobj, KOBJ_CHANGE); |
1da177e4 LT |
2387 | LEAVE; |
2388 | } | |
2389 | ||
2390 | #ifdef CONFIG_SCSI_IPR_TRACE | |
2391 | /** | |
2392 | * ipr_read_trace - Dump the adapter trace | |
2393 | * @kobj: kobject struct | |
2394 | * @buf: buffer | |
2395 | * @off: offset | |
2396 | * @count: buffer size | |
2397 | * | |
2398 | * Return value: | |
2399 | * number of bytes printed to buffer | |
2400 | **/ | |
2401 | static ssize_t ipr_read_trace(struct kobject *kobj, char *buf, | |
2402 | loff_t off, size_t count) | |
2403 | { | |
2404 | struct class_device *cdev = container_of(kobj,struct class_device,kobj); | |
2405 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2406 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2407 | unsigned long lock_flags = 0; | |
2408 | int size = IPR_TRACE_SIZE; | |
2409 | char *src = (char *)ioa_cfg->trace; | |
2410 | ||
2411 | if (off > size) | |
2412 | return 0; | |
2413 | if (off + count > size) { | |
2414 | size -= off; | |
2415 | count = size; | |
2416 | } | |
2417 | ||
2418 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2419 | memcpy(buf, &src[off], count); | |
2420 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2421 | return count; | |
2422 | } | |
2423 | ||
2424 | static struct bin_attribute ipr_trace_attr = { | |
2425 | .attr = { | |
2426 | .name = "trace", | |
2427 | .mode = S_IRUGO, | |
2428 | }, | |
2429 | .size = 0, | |
2430 | .read = ipr_read_trace, | |
2431 | }; | |
2432 | #endif | |
2433 | ||
62275040 | 2434 | static const struct { |
2435 | enum ipr_cache_state state; | |
2436 | char *name; | |
2437 | } cache_state [] = { | |
2438 | { CACHE_NONE, "none" }, | |
2439 | { CACHE_DISABLED, "disabled" }, | |
2440 | { CACHE_ENABLED, "enabled" } | |
2441 | }; | |
2442 | ||
2443 | /** | |
2444 | * ipr_show_write_caching - Show the write caching attribute | |
2445 | * @class_dev: class device struct | |
2446 | * @buf: buffer | |
2447 | * | |
2448 | * Return value: | |
2449 | * number of bytes printed to buffer | |
2450 | **/ | |
2451 | static ssize_t ipr_show_write_caching(struct class_device *class_dev, char *buf) | |
2452 | { | |
2453 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2454 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2455 | unsigned long lock_flags = 0; | |
2456 | int i, len = 0; | |
2457 | ||
2458 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2459 | for (i = 0; i < ARRAY_SIZE(cache_state); i++) { | |
2460 | if (cache_state[i].state == ioa_cfg->cache_state) { | |
2461 | len = snprintf(buf, PAGE_SIZE, "%s\n", cache_state[i].name); | |
2462 | break; | |
2463 | } | |
2464 | } | |
2465 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2466 | return len; | |
2467 | } | |
2468 | ||
2469 | ||
2470 | /** | |
2471 | * ipr_store_write_caching - Enable/disable adapter write cache | |
2472 | * @class_dev: class_device struct | |
2473 | * @buf: buffer | |
2474 | * @count: buffer size | |
2475 | * | |
2476 | * This function will enable/disable adapter write cache. | |
2477 | * | |
2478 | * Return value: | |
2479 | * count on success / other on failure | |
2480 | **/ | |
2481 | static ssize_t ipr_store_write_caching(struct class_device *class_dev, | |
2482 | const char *buf, size_t count) | |
2483 | { | |
2484 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2485 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2486 | unsigned long lock_flags = 0; | |
2487 | enum ipr_cache_state new_state = CACHE_INVALID; | |
2488 | int i; | |
2489 | ||
2490 | if (!capable(CAP_SYS_ADMIN)) | |
2491 | return -EACCES; | |
2492 | if (ioa_cfg->cache_state == CACHE_NONE) | |
2493 | return -EINVAL; | |
2494 | ||
2495 | for (i = 0; i < ARRAY_SIZE(cache_state); i++) { | |
2496 | if (!strncmp(cache_state[i].name, buf, strlen(cache_state[i].name))) { | |
2497 | new_state = cache_state[i].state; | |
2498 | break; | |
2499 | } | |
2500 | } | |
2501 | ||
2502 | if (new_state != CACHE_DISABLED && new_state != CACHE_ENABLED) | |
2503 | return -EINVAL; | |
2504 | ||
2505 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2506 | if (ioa_cfg->cache_state == new_state) { | |
2507 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2508 | return count; | |
2509 | } | |
2510 | ||
2511 | ioa_cfg->cache_state = new_state; | |
2512 | dev_info(&ioa_cfg->pdev->dev, "%s adapter write cache.\n", | |
2513 | new_state == CACHE_ENABLED ? "Enabling" : "Disabling"); | |
2514 | if (!ioa_cfg->in_reset_reload) | |
2515 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
2516 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2517 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2518 | ||
2519 | return count; | |
2520 | } | |
2521 | ||
2522 | static struct class_device_attribute ipr_ioa_cache_attr = { | |
2523 | .attr = { | |
2524 | .name = "write_cache", | |
2525 | .mode = S_IRUGO | S_IWUSR, | |
2526 | }, | |
2527 | .show = ipr_show_write_caching, | |
2528 | .store = ipr_store_write_caching | |
2529 | }; | |
2530 | ||
1da177e4 LT |
2531 | /** |
2532 | * ipr_show_fw_version - Show the firmware version | |
2533 | * @class_dev: class device struct | |
2534 | * @buf: buffer | |
2535 | * | |
2536 | * Return value: | |
2537 | * number of bytes printed to buffer | |
2538 | **/ | |
2539 | static ssize_t ipr_show_fw_version(struct class_device *class_dev, char *buf) | |
2540 | { | |
2541 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2542 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2543 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; | |
2544 | unsigned long lock_flags = 0; | |
2545 | int len; | |
2546 | ||
2547 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2548 | len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n", | |
2549 | ucode_vpd->major_release, ucode_vpd->card_type, | |
2550 | ucode_vpd->minor_release[0], | |
2551 | ucode_vpd->minor_release[1]); | |
2552 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2553 | return len; | |
2554 | } | |
2555 | ||
2556 | static struct class_device_attribute ipr_fw_version_attr = { | |
2557 | .attr = { | |
2558 | .name = "fw_version", | |
2559 | .mode = S_IRUGO, | |
2560 | }, | |
2561 | .show = ipr_show_fw_version, | |
2562 | }; | |
2563 | ||
2564 | /** | |
2565 | * ipr_show_log_level - Show the adapter's error logging level | |
2566 | * @class_dev: class device struct | |
2567 | * @buf: buffer | |
2568 | * | |
2569 | * Return value: | |
2570 | * number of bytes printed to buffer | |
2571 | **/ | |
2572 | static ssize_t ipr_show_log_level(struct class_device *class_dev, char *buf) | |
2573 | { | |
2574 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2575 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2576 | unsigned long lock_flags = 0; | |
2577 | int len; | |
2578 | ||
2579 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2580 | len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level); | |
2581 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2582 | return len; | |
2583 | } | |
2584 | ||
2585 | /** | |
2586 | * ipr_store_log_level - Change the adapter's error logging level | |
2587 | * @class_dev: class device struct | |
2588 | * @buf: buffer | |
2589 | * | |
2590 | * Return value: | |
2591 | * number of bytes printed to buffer | |
2592 | **/ | |
2593 | static ssize_t ipr_store_log_level(struct class_device *class_dev, | |
2594 | const char *buf, size_t count) | |
2595 | { | |
2596 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2597 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2598 | unsigned long lock_flags = 0; | |
2599 | ||
2600 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2601 | ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); | |
2602 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2603 | return strlen(buf); | |
2604 | } | |
2605 | ||
2606 | static struct class_device_attribute ipr_log_level_attr = { | |
2607 | .attr = { | |
2608 | .name = "log_level", | |
2609 | .mode = S_IRUGO | S_IWUSR, | |
2610 | }, | |
2611 | .show = ipr_show_log_level, | |
2612 | .store = ipr_store_log_level | |
2613 | }; | |
2614 | ||
2615 | /** | |
2616 | * ipr_store_diagnostics - IOA Diagnostics interface | |
2617 | * @class_dev: class_device struct | |
2618 | * @buf: buffer | |
2619 | * @count: buffer size | |
2620 | * | |
2621 | * This function will reset the adapter and wait a reasonable | |
2622 | * amount of time for any errors that the adapter might log. | |
2623 | * | |
2624 | * Return value: | |
2625 | * count on success / other on failure | |
2626 | **/ | |
2627 | static ssize_t ipr_store_diagnostics(struct class_device *class_dev, | |
2628 | const char *buf, size_t count) | |
2629 | { | |
2630 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2631 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2632 | unsigned long lock_flags = 0; | |
2633 | int rc = count; | |
2634 | ||
2635 | if (!capable(CAP_SYS_ADMIN)) | |
2636 | return -EACCES; | |
2637 | ||
1da177e4 | 2638 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
970ea294 BK |
2639 | while(ioa_cfg->in_reset_reload) { |
2640 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2641 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2642 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2643 | } | |
2644 | ||
1da177e4 LT |
2645 | ioa_cfg->errors_logged = 0; |
2646 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
2647 | ||
2648 | if (ioa_cfg->in_reset_reload) { | |
2649 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2650 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2651 | ||
2652 | /* Wait for a second for any errors to be logged */ | |
2653 | msleep(1000); | |
2654 | } else { | |
2655 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2656 | return -EIO; | |
2657 | } | |
2658 | ||
2659 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2660 | if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) | |
2661 | rc = -EIO; | |
2662 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2663 | ||
2664 | return rc; | |
2665 | } | |
2666 | ||
2667 | static struct class_device_attribute ipr_diagnostics_attr = { | |
2668 | .attr = { | |
2669 | .name = "run_diagnostics", | |
2670 | .mode = S_IWUSR, | |
2671 | }, | |
2672 | .store = ipr_store_diagnostics | |
2673 | }; | |
2674 | ||
f37eb54b | 2675 | /** |
2676 | * ipr_show_adapter_state - Show the adapter's state | |
2677 | * @class_dev: class device struct | |
2678 | * @buf: buffer | |
2679 | * | |
2680 | * Return value: | |
2681 | * number of bytes printed to buffer | |
2682 | **/ | |
2683 | static ssize_t ipr_show_adapter_state(struct class_device *class_dev, char *buf) | |
2684 | { | |
2685 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2686 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2687 | unsigned long lock_flags = 0; | |
2688 | int len; | |
2689 | ||
2690 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2691 | if (ioa_cfg->ioa_is_dead) | |
2692 | len = snprintf(buf, PAGE_SIZE, "offline\n"); | |
2693 | else | |
2694 | len = snprintf(buf, PAGE_SIZE, "online\n"); | |
2695 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2696 | return len; | |
2697 | } | |
2698 | ||
2699 | /** | |
2700 | * ipr_store_adapter_state - Change adapter state | |
2701 | * @class_dev: class_device struct | |
2702 | * @buf: buffer | |
2703 | * @count: buffer size | |
2704 | * | |
2705 | * This function will change the adapter's state. | |
2706 | * | |
2707 | * Return value: | |
2708 | * count on success / other on failure | |
2709 | **/ | |
2710 | static ssize_t ipr_store_adapter_state(struct class_device *class_dev, | |
2711 | const char *buf, size_t count) | |
2712 | { | |
2713 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2714 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2715 | unsigned long lock_flags; | |
2716 | int result = count; | |
2717 | ||
2718 | if (!capable(CAP_SYS_ADMIN)) | |
2719 | return -EACCES; | |
2720 | ||
2721 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2722 | if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) { | |
2723 | ioa_cfg->ioa_is_dead = 0; | |
2724 | ioa_cfg->reset_retries = 0; | |
2725 | ioa_cfg->in_ioa_bringdown = 0; | |
2726 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
2727 | } | |
2728 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2729 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2730 | ||
2731 | return result; | |
2732 | } | |
2733 | ||
2734 | static struct class_device_attribute ipr_ioa_state_attr = { | |
2735 | .attr = { | |
2736 | .name = "state", | |
2737 | .mode = S_IRUGO | S_IWUSR, | |
2738 | }, | |
2739 | .show = ipr_show_adapter_state, | |
2740 | .store = ipr_store_adapter_state | |
2741 | }; | |
2742 | ||
1da177e4 LT |
2743 | /** |
2744 | * ipr_store_reset_adapter - Reset the adapter | |
2745 | * @class_dev: class_device struct | |
2746 | * @buf: buffer | |
2747 | * @count: buffer size | |
2748 | * | |
2749 | * This function will reset the adapter. | |
2750 | * | |
2751 | * Return value: | |
2752 | * count on success / other on failure | |
2753 | **/ | |
2754 | static ssize_t ipr_store_reset_adapter(struct class_device *class_dev, | |
2755 | const char *buf, size_t count) | |
2756 | { | |
2757 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2758 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2759 | unsigned long lock_flags; | |
2760 | int result = count; | |
2761 | ||
2762 | if (!capable(CAP_SYS_ADMIN)) | |
2763 | return -EACCES; | |
2764 | ||
2765 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2766 | if (!ioa_cfg->in_reset_reload) | |
2767 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
2768 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2769 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2770 | ||
2771 | return result; | |
2772 | } | |
2773 | ||
2774 | static struct class_device_attribute ipr_ioa_reset_attr = { | |
2775 | .attr = { | |
2776 | .name = "reset_host", | |
2777 | .mode = S_IWUSR, | |
2778 | }, | |
2779 | .store = ipr_store_reset_adapter | |
2780 | }; | |
2781 | ||
2782 | /** | |
2783 | * ipr_alloc_ucode_buffer - Allocates a microcode download buffer | |
2784 | * @buf_len: buffer length | |
2785 | * | |
2786 | * Allocates a DMA'able buffer in chunks and assembles a scatter/gather | |
2787 | * list to use for microcode download | |
2788 | * | |
2789 | * Return value: | |
2790 | * pointer to sglist / NULL on failure | |
2791 | **/ | |
2792 | static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) | |
2793 | { | |
2794 | int sg_size, order, bsize_elem, num_elem, i, j; | |
2795 | struct ipr_sglist *sglist; | |
2796 | struct scatterlist *scatterlist; | |
2797 | struct page *page; | |
2798 | ||
2799 | /* Get the minimum size per scatter/gather element */ | |
2800 | sg_size = buf_len / (IPR_MAX_SGLIST - 1); | |
2801 | ||
2802 | /* Get the actual size per element */ | |
2803 | order = get_order(sg_size); | |
2804 | ||
2805 | /* Determine the actual number of bytes per element */ | |
2806 | bsize_elem = PAGE_SIZE * (1 << order); | |
2807 | ||
2808 | /* Determine the actual number of sg entries needed */ | |
2809 | if (buf_len % bsize_elem) | |
2810 | num_elem = (buf_len / bsize_elem) + 1; | |
2811 | else | |
2812 | num_elem = buf_len / bsize_elem; | |
2813 | ||
2814 | /* Allocate a scatter/gather list for the DMA */ | |
0bc42e35 | 2815 | sglist = kzalloc(sizeof(struct ipr_sglist) + |
1da177e4 LT |
2816 | (sizeof(struct scatterlist) * (num_elem - 1)), |
2817 | GFP_KERNEL); | |
2818 | ||
2819 | if (sglist == NULL) { | |
2820 | ipr_trace; | |
2821 | return NULL; | |
2822 | } | |
2823 | ||
1da177e4 LT |
2824 | scatterlist = sglist->scatterlist; |
2825 | ||
2826 | sglist->order = order; | |
2827 | sglist->num_sg = num_elem; | |
2828 | ||
2829 | /* Allocate a bunch of sg elements */ | |
2830 | for (i = 0; i < num_elem; i++) { | |
2831 | page = alloc_pages(GFP_KERNEL, order); | |
2832 | if (!page) { | |
2833 | ipr_trace; | |
2834 | ||
2835 | /* Free up what we already allocated */ | |
2836 | for (j = i - 1; j >= 0; j--) | |
2837 | __free_pages(scatterlist[j].page, order); | |
2838 | kfree(sglist); | |
2839 | return NULL; | |
2840 | } | |
2841 | ||
2842 | scatterlist[i].page = page; | |
2843 | } | |
2844 | ||
2845 | return sglist; | |
2846 | } | |
2847 | ||
2848 | /** | |
2849 | * ipr_free_ucode_buffer - Frees a microcode download buffer | |
2850 | * @p_dnld: scatter/gather list pointer | |
2851 | * | |
2852 | * Free a DMA'able ucode download buffer previously allocated with | |
2853 | * ipr_alloc_ucode_buffer | |
2854 | * | |
2855 | * Return value: | |
2856 | * nothing | |
2857 | **/ | |
2858 | static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) | |
2859 | { | |
2860 | int i; | |
2861 | ||
2862 | for (i = 0; i < sglist->num_sg; i++) | |
2863 | __free_pages(sglist->scatterlist[i].page, sglist->order); | |
2864 | ||
2865 | kfree(sglist); | |
2866 | } | |
2867 | ||
2868 | /** | |
2869 | * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer | |
2870 | * @sglist: scatter/gather list pointer | |
2871 | * @buffer: buffer pointer | |
2872 | * @len: buffer length | |
2873 | * | |
2874 | * Copy a microcode image from a user buffer into a buffer allocated by | |
2875 | * ipr_alloc_ucode_buffer | |
2876 | * | |
2877 | * Return value: | |
2878 | * 0 on success / other on failure | |
2879 | **/ | |
2880 | static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, | |
2881 | u8 *buffer, u32 len) | |
2882 | { | |
2883 | int bsize_elem, i, result = 0; | |
2884 | struct scatterlist *scatterlist; | |
2885 | void *kaddr; | |
2886 | ||
2887 | /* Determine the actual number of bytes per element */ | |
2888 | bsize_elem = PAGE_SIZE * (1 << sglist->order); | |
2889 | ||
2890 | scatterlist = sglist->scatterlist; | |
2891 | ||
2892 | for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) { | |
2893 | kaddr = kmap(scatterlist[i].page); | |
2894 | memcpy(kaddr, buffer, bsize_elem); | |
2895 | kunmap(scatterlist[i].page); | |
2896 | ||
2897 | scatterlist[i].length = bsize_elem; | |
2898 | ||
2899 | if (result != 0) { | |
2900 | ipr_trace; | |
2901 | return result; | |
2902 | } | |
2903 | } | |
2904 | ||
2905 | if (len % bsize_elem) { | |
2906 | kaddr = kmap(scatterlist[i].page); | |
2907 | memcpy(kaddr, buffer, len % bsize_elem); | |
2908 | kunmap(scatterlist[i].page); | |
2909 | ||
2910 | scatterlist[i].length = len % bsize_elem; | |
2911 | } | |
2912 | ||
2913 | sglist->buffer_len = len; | |
2914 | return result; | |
2915 | } | |
2916 | ||
2917 | /** | |
12baa420 | 2918 | * ipr_build_ucode_ioadl - Build a microcode download IOADL |
1da177e4 LT |
2919 | * @ipr_cmd: ipr command struct |
2920 | * @sglist: scatter/gather list | |
1da177e4 | 2921 | * |
12baa420 | 2922 | * Builds a microcode download IOA data list (IOADL). |
1da177e4 | 2923 | * |
1da177e4 | 2924 | **/ |
12baa420 | 2925 | static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, |
2926 | struct ipr_sglist *sglist) | |
1da177e4 | 2927 | { |
1da177e4 LT |
2928 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
2929 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
2930 | struct scatterlist *scatterlist = sglist->scatterlist; | |
2931 | int i; | |
2932 | ||
12baa420 | 2933 | ipr_cmd->dma_use_sg = sglist->num_dma_sg; |
1da177e4 | 2934 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
12baa420 | 2935 | ioarcb->write_data_transfer_length = cpu_to_be32(sglist->buffer_len); |
1da177e4 LT |
2936 | ioarcb->write_ioadl_len = |
2937 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
2938 | ||
2939 | for (i = 0; i < ipr_cmd->dma_use_sg; i++) { | |
2940 | ioadl[i].flags_and_data_len = | |
2941 | cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i])); | |
2942 | ioadl[i].address = | |
2943 | cpu_to_be32(sg_dma_address(&scatterlist[i])); | |
2944 | } | |
2945 | ||
12baa420 | 2946 | ioadl[i-1].flags_and_data_len |= |
2947 | cpu_to_be32(IPR_IOADL_FLAGS_LAST); | |
2948 | } | |
2949 | ||
2950 | /** | |
2951 | * ipr_update_ioa_ucode - Update IOA's microcode | |
2952 | * @ioa_cfg: ioa config struct | |
2953 | * @sglist: scatter/gather list | |
2954 | * | |
2955 | * Initiate an adapter reset to update the IOA's microcode | |
2956 | * | |
2957 | * Return value: | |
2958 | * 0 on success / -EIO on failure | |
2959 | **/ | |
2960 | static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, | |
2961 | struct ipr_sglist *sglist) | |
2962 | { | |
2963 | unsigned long lock_flags; | |
2964 | ||
2965 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
970ea294 BK |
2966 | while(ioa_cfg->in_reset_reload) { |
2967 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2968 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2969 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2970 | } | |
12baa420 | 2971 | |
2972 | if (ioa_cfg->ucode_sglist) { | |
2973 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2974 | dev_err(&ioa_cfg->pdev->dev, | |
2975 | "Microcode download already in progress\n"); | |
2976 | return -EIO; | |
1da177e4 | 2977 | } |
12baa420 | 2978 | |
2979 | sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist, | |
2980 | sglist->num_sg, DMA_TO_DEVICE); | |
2981 | ||
2982 | if (!sglist->num_dma_sg) { | |
2983 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2984 | dev_err(&ioa_cfg->pdev->dev, | |
2985 | "Failed to map microcode download buffer!\n"); | |
1da177e4 LT |
2986 | return -EIO; |
2987 | } | |
2988 | ||
12baa420 | 2989 | ioa_cfg->ucode_sglist = sglist; |
2990 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
2991 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2992 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2993 | ||
2994 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2995 | ioa_cfg->ucode_sglist = NULL; | |
2996 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1da177e4 LT |
2997 | return 0; |
2998 | } | |
2999 | ||
3000 | /** | |
3001 | * ipr_store_update_fw - Update the firmware on the adapter | |
3002 | * @class_dev: class_device struct | |
3003 | * @buf: buffer | |
3004 | * @count: buffer size | |
3005 | * | |
3006 | * This function will update the firmware on the adapter. | |
3007 | * | |
3008 | * Return value: | |
3009 | * count on success / other on failure | |
3010 | **/ | |
3011 | static ssize_t ipr_store_update_fw(struct class_device *class_dev, | |
3012 | const char *buf, size_t count) | |
3013 | { | |
3014 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
3015 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
3016 | struct ipr_ucode_image_header *image_hdr; | |
3017 | const struct firmware *fw_entry; | |
3018 | struct ipr_sglist *sglist; | |
1da177e4 LT |
3019 | char fname[100]; |
3020 | char *src; | |
3021 | int len, result, dnld_size; | |
3022 | ||
3023 | if (!capable(CAP_SYS_ADMIN)) | |
3024 | return -EACCES; | |
3025 | ||
3026 | len = snprintf(fname, 99, "%s", buf); | |
3027 | fname[len-1] = '\0'; | |
3028 | ||
3029 | if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) { | |
3030 | dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname); | |
3031 | return -EIO; | |
3032 | } | |
3033 | ||
3034 | image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; | |
3035 | ||
3036 | if (be32_to_cpu(image_hdr->header_length) > fw_entry->size || | |
3037 | (ioa_cfg->vpd_cbs->page3_data.card_type && | |
3038 | ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) { | |
3039 | dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n"); | |
3040 | release_firmware(fw_entry); | |
3041 | return -EINVAL; | |
3042 | } | |
3043 | ||
3044 | src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); | |
3045 | dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); | |
3046 | sglist = ipr_alloc_ucode_buffer(dnld_size); | |
3047 | ||
3048 | if (!sglist) { | |
3049 | dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n"); | |
3050 | release_firmware(fw_entry); | |
3051 | return -ENOMEM; | |
3052 | } | |
3053 | ||
3054 | result = ipr_copy_ucode_buffer(sglist, src, dnld_size); | |
3055 | ||
3056 | if (result) { | |
3057 | dev_err(&ioa_cfg->pdev->dev, | |
3058 | "Microcode buffer copy to DMA buffer failed\n"); | |
12baa420 | 3059 | goto out; |
1da177e4 LT |
3060 | } |
3061 | ||
12baa420 | 3062 | result = ipr_update_ioa_ucode(ioa_cfg, sglist); |
1da177e4 | 3063 | |
12baa420 | 3064 | if (!result) |
3065 | result = count; | |
3066 | out: | |
1da177e4 LT |
3067 | ipr_free_ucode_buffer(sglist); |
3068 | release_firmware(fw_entry); | |
12baa420 | 3069 | return result; |
1da177e4 LT |
3070 | } |
3071 | ||
3072 | static struct class_device_attribute ipr_update_fw_attr = { | |
3073 | .attr = { | |
3074 | .name = "update_fw", | |
3075 | .mode = S_IWUSR, | |
3076 | }, | |
3077 | .store = ipr_store_update_fw | |
3078 | }; | |
3079 | ||
3080 | static struct class_device_attribute *ipr_ioa_attrs[] = { | |
3081 | &ipr_fw_version_attr, | |
3082 | &ipr_log_level_attr, | |
3083 | &ipr_diagnostics_attr, | |
f37eb54b | 3084 | &ipr_ioa_state_attr, |
1da177e4 LT |
3085 | &ipr_ioa_reset_attr, |
3086 | &ipr_update_fw_attr, | |
62275040 | 3087 | &ipr_ioa_cache_attr, |
1da177e4 LT |
3088 | NULL, |
3089 | }; | |
3090 | ||
3091 | #ifdef CONFIG_SCSI_IPR_DUMP | |
3092 | /** | |
3093 | * ipr_read_dump - Dump the adapter | |
3094 | * @kobj: kobject struct | |
3095 | * @buf: buffer | |
3096 | * @off: offset | |
3097 | * @count: buffer size | |
3098 | * | |
3099 | * Return value: | |
3100 | * number of bytes printed to buffer | |
3101 | **/ | |
3102 | static ssize_t ipr_read_dump(struct kobject *kobj, char *buf, | |
3103 | loff_t off, size_t count) | |
3104 | { | |
3105 | struct class_device *cdev = container_of(kobj,struct class_device,kobj); | |
3106 | struct Scsi_Host *shost = class_to_shost(cdev); | |
3107 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
3108 | struct ipr_dump *dump; | |
3109 | unsigned long lock_flags = 0; | |
3110 | char *src; | |
3111 | int len; | |
3112 | size_t rc = count; | |
3113 | ||
3114 | if (!capable(CAP_SYS_ADMIN)) | |
3115 | return -EACCES; | |
3116 | ||
3117 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3118 | dump = ioa_cfg->dump; | |
3119 | ||
3120 | if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { | |
3121 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3122 | return 0; | |
3123 | } | |
3124 | kref_get(&dump->kref); | |
3125 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3126 | ||
3127 | if (off > dump->driver_dump.hdr.len) { | |
3128 | kref_put(&dump->kref, ipr_release_dump); | |
3129 | return 0; | |
3130 | } | |
3131 | ||
3132 | if (off + count > dump->driver_dump.hdr.len) { | |
3133 | count = dump->driver_dump.hdr.len - off; | |
3134 | rc = count; | |
3135 | } | |
3136 | ||
3137 | if (count && off < sizeof(dump->driver_dump)) { | |
3138 | if (off + count > sizeof(dump->driver_dump)) | |
3139 | len = sizeof(dump->driver_dump) - off; | |
3140 | else | |
3141 | len = count; | |
3142 | src = (u8 *)&dump->driver_dump + off; | |
3143 | memcpy(buf, src, len); | |
3144 | buf += len; | |
3145 | off += len; | |
3146 | count -= len; | |
3147 | } | |
3148 | ||
3149 | off -= sizeof(dump->driver_dump); | |
3150 | ||
3151 | if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) { | |
3152 | if (off + count > offsetof(struct ipr_ioa_dump, ioa_data)) | |
3153 | len = offsetof(struct ipr_ioa_dump, ioa_data) - off; | |
3154 | else | |
3155 | len = count; | |
3156 | src = (u8 *)&dump->ioa_dump + off; | |
3157 | memcpy(buf, src, len); | |
3158 | buf += len; | |
3159 | off += len; | |
3160 | count -= len; | |
3161 | } | |
3162 | ||
3163 | off -= offsetof(struct ipr_ioa_dump, ioa_data); | |
3164 | ||
3165 | while (count) { | |
3166 | if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) | |
3167 | len = PAGE_ALIGN(off) - off; | |
3168 | else | |
3169 | len = count; | |
3170 | src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; | |
3171 | src += off & ~PAGE_MASK; | |
3172 | memcpy(buf, src, len); | |
3173 | buf += len; | |
3174 | off += len; | |
3175 | count -= len; | |
3176 | } | |
3177 | ||
3178 | kref_put(&dump->kref, ipr_release_dump); | |
3179 | return rc; | |
3180 | } | |
3181 | ||
3182 | /** | |
3183 | * ipr_alloc_dump - Prepare for adapter dump | |
3184 | * @ioa_cfg: ioa config struct | |
3185 | * | |
3186 | * Return value: | |
3187 | * 0 on success / other on failure | |
3188 | **/ | |
3189 | static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) | |
3190 | { | |
3191 | struct ipr_dump *dump; | |
3192 | unsigned long lock_flags = 0; | |
3193 | ||
0bc42e35 | 3194 | dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL); |
1da177e4 LT |
3195 | |
3196 | if (!dump) { | |
3197 | ipr_err("Dump memory allocation failed\n"); | |
3198 | return -ENOMEM; | |
3199 | } | |
3200 | ||
1da177e4 LT |
3201 | kref_init(&dump->kref); |
3202 | dump->ioa_cfg = ioa_cfg; | |
3203 | ||
3204 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3205 | ||
3206 | if (INACTIVE != ioa_cfg->sdt_state) { | |
3207 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3208 | kfree(dump); | |
3209 | return 0; | |
3210 | } | |
3211 | ||
3212 | ioa_cfg->dump = dump; | |
3213 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; | |
3214 | if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) { | |
3215 | ioa_cfg->dump_taken = 1; | |
3216 | schedule_work(&ioa_cfg->work_q); | |
3217 | } | |
3218 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3219 | ||
1da177e4 LT |
3220 | return 0; |
3221 | } | |
3222 | ||
3223 | /** | |
3224 | * ipr_free_dump - Free adapter dump memory | |
3225 | * @ioa_cfg: ioa config struct | |
3226 | * | |
3227 | * Return value: | |
3228 | * 0 on success / other on failure | |
3229 | **/ | |
3230 | static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) | |
3231 | { | |
3232 | struct ipr_dump *dump; | |
3233 | unsigned long lock_flags = 0; | |
3234 | ||
3235 | ENTER; | |
3236 | ||
3237 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3238 | dump = ioa_cfg->dump; | |
3239 | if (!dump) { | |
3240 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3241 | return 0; | |
3242 | } | |
3243 | ||
3244 | ioa_cfg->dump = NULL; | |
3245 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3246 | ||
3247 | kref_put(&dump->kref, ipr_release_dump); | |
3248 | ||
3249 | LEAVE; | |
3250 | return 0; | |
3251 | } | |
3252 | ||
3253 | /** | |
3254 | * ipr_write_dump - Setup dump state of adapter | |
3255 | * @kobj: kobject struct | |
3256 | * @buf: buffer | |
3257 | * @off: offset | |
3258 | * @count: buffer size | |
3259 | * | |
3260 | * Return value: | |
3261 | * number of bytes printed to buffer | |
3262 | **/ | |
3263 | static ssize_t ipr_write_dump(struct kobject *kobj, char *buf, | |
3264 | loff_t off, size_t count) | |
3265 | { | |
3266 | struct class_device *cdev = container_of(kobj,struct class_device,kobj); | |
3267 | struct Scsi_Host *shost = class_to_shost(cdev); | |
3268 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
3269 | int rc; | |
3270 | ||
3271 | if (!capable(CAP_SYS_ADMIN)) | |
3272 | return -EACCES; | |
3273 | ||
3274 | if (buf[0] == '1') | |
3275 | rc = ipr_alloc_dump(ioa_cfg); | |
3276 | else if (buf[0] == '0') | |
3277 | rc = ipr_free_dump(ioa_cfg); | |
3278 | else | |
3279 | return -EINVAL; | |
3280 | ||
3281 | if (rc) | |
3282 | return rc; | |
3283 | else | |
3284 | return count; | |
3285 | } | |
3286 | ||
3287 | static struct bin_attribute ipr_dump_attr = { | |
3288 | .attr = { | |
3289 | .name = "dump", | |
3290 | .mode = S_IRUSR | S_IWUSR, | |
3291 | }, | |
3292 | .size = 0, | |
3293 | .read = ipr_read_dump, | |
3294 | .write = ipr_write_dump | |
3295 | }; | |
3296 | #else | |
3297 | static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; | |
3298 | #endif | |
3299 | ||
3300 | /** | |
3301 | * ipr_change_queue_depth - Change the device's queue depth | |
3302 | * @sdev: scsi device struct | |
3303 | * @qdepth: depth to set | |
3304 | * | |
3305 | * Return value: | |
3306 | * actual depth set | |
3307 | **/ | |
3308 | static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth) | |
3309 | { | |
35a39691 BK |
3310 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
3311 | struct ipr_resource_entry *res; | |
3312 | unsigned long lock_flags = 0; | |
3313 | ||
3314 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3315 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
3316 | ||
3317 | if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN) | |
3318 | qdepth = IPR_MAX_CMD_PER_ATA_LUN; | |
3319 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3320 | ||
1da177e4 LT |
3321 | scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); |
3322 | return sdev->queue_depth; | |
3323 | } | |
3324 | ||
3325 | /** | |
3326 | * ipr_change_queue_type - Change the device's queue type | |
3327 | * @dsev: scsi device struct | |
3328 | * @tag_type: type of tags to use | |
3329 | * | |
3330 | * Return value: | |
3331 | * actual queue type set | |
3332 | **/ | |
3333 | static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type) | |
3334 | { | |
3335 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; | |
3336 | struct ipr_resource_entry *res; | |
3337 | unsigned long lock_flags = 0; | |
3338 | ||
3339 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3340 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
3341 | ||
3342 | if (res) { | |
3343 | if (ipr_is_gscsi(res) && sdev->tagged_supported) { | |
3344 | /* | |
3345 | * We don't bother quiescing the device here since the | |
3346 | * adapter firmware does it for us. | |
3347 | */ | |
3348 | scsi_set_tag_type(sdev, tag_type); | |
3349 | ||
3350 | if (tag_type) | |
3351 | scsi_activate_tcq(sdev, sdev->queue_depth); | |
3352 | else | |
3353 | scsi_deactivate_tcq(sdev, sdev->queue_depth); | |
3354 | } else | |
3355 | tag_type = 0; | |
3356 | } else | |
3357 | tag_type = 0; | |
3358 | ||
3359 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3360 | return tag_type; | |
3361 | } | |
3362 | ||
3363 | /** | |
3364 | * ipr_show_adapter_handle - Show the adapter's resource handle for this device | |
3365 | * @dev: device struct | |
3366 | * @buf: buffer | |
3367 | * | |
3368 | * Return value: | |
3369 | * number of bytes printed to buffer | |
3370 | **/ | |
10523b3b | 3371 | static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
3372 | { |
3373 | struct scsi_device *sdev = to_scsi_device(dev); | |
3374 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; | |
3375 | struct ipr_resource_entry *res; | |
3376 | unsigned long lock_flags = 0; | |
3377 | ssize_t len = -ENXIO; | |
3378 | ||
3379 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3380 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
3381 | if (res) | |
3382 | len = snprintf(buf, PAGE_SIZE, "%08X\n", res->cfgte.res_handle); | |
3383 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3384 | return len; | |
3385 | } | |
3386 | ||
3387 | static struct device_attribute ipr_adapter_handle_attr = { | |
3388 | .attr = { | |
3389 | .name = "adapter_handle", | |
3390 | .mode = S_IRUSR, | |
3391 | }, | |
3392 | .show = ipr_show_adapter_handle | |
3393 | }; | |
3394 | ||
3395 | static struct device_attribute *ipr_dev_attrs[] = { | |
3396 | &ipr_adapter_handle_attr, | |
3397 | NULL, | |
3398 | }; | |
3399 | ||
3400 | /** | |
3401 | * ipr_biosparam - Return the HSC mapping | |
3402 | * @sdev: scsi device struct | |
3403 | * @block_device: block device pointer | |
3404 | * @capacity: capacity of the device | |
3405 | * @parm: Array containing returned HSC values. | |
3406 | * | |
3407 | * This function generates the HSC parms that fdisk uses. | |
3408 | * We want to make sure we return something that places partitions | |
3409 | * on 4k boundaries for best performance with the IOA. | |
3410 | * | |
3411 | * Return value: | |
3412 | * 0 on success | |
3413 | **/ | |
3414 | static int ipr_biosparam(struct scsi_device *sdev, | |
3415 | struct block_device *block_device, | |
3416 | sector_t capacity, int *parm) | |
3417 | { | |
3418 | int heads, sectors; | |
3419 | sector_t cylinders; | |
3420 | ||
3421 | heads = 128; | |
3422 | sectors = 32; | |
3423 | ||
3424 | cylinders = capacity; | |
3425 | sector_div(cylinders, (128 * 32)); | |
3426 | ||
3427 | /* return result */ | |
3428 | parm[0] = heads; | |
3429 | parm[1] = sectors; | |
3430 | parm[2] = cylinders; | |
3431 | ||
3432 | return 0; | |
3433 | } | |
3434 | ||
35a39691 BK |
3435 | /** |
3436 | * ipr_find_starget - Find target based on bus/target. | |
3437 | * @starget: scsi target struct | |
3438 | * | |
3439 | * Return value: | |
3440 | * resource entry pointer if found / NULL if not found | |
3441 | **/ | |
3442 | static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget) | |
3443 | { | |
3444 | struct Scsi_Host *shost = dev_to_shost(&starget->dev); | |
3445 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; | |
3446 | struct ipr_resource_entry *res; | |
3447 | ||
3448 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3449 | if ((res->cfgte.res_addr.bus == starget->channel) && | |
3450 | (res->cfgte.res_addr.target == starget->id) && | |
3451 | (res->cfgte.res_addr.lun == 0)) { | |
3452 | return res; | |
3453 | } | |
3454 | } | |
3455 | ||
3456 | return NULL; | |
3457 | } | |
3458 | ||
3459 | static struct ata_port_info sata_port_info; | |
3460 | ||
3461 | /** | |
3462 | * ipr_target_alloc - Prepare for commands to a SCSI target | |
3463 | * @starget: scsi target struct | |
3464 | * | |
3465 | * If the device is a SATA device, this function allocates an | |
3466 | * ATA port with libata, else it does nothing. | |
3467 | * | |
3468 | * Return value: | |
3469 | * 0 on success / non-0 on failure | |
3470 | **/ | |
3471 | static int ipr_target_alloc(struct scsi_target *starget) | |
3472 | { | |
3473 | struct Scsi_Host *shost = dev_to_shost(&starget->dev); | |
3474 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; | |
3475 | struct ipr_sata_port *sata_port; | |
3476 | struct ata_port *ap; | |
3477 | struct ipr_resource_entry *res; | |
3478 | unsigned long lock_flags; | |
3479 | ||
3480 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3481 | res = ipr_find_starget(starget); | |
3482 | starget->hostdata = NULL; | |
3483 | ||
3484 | if (res && ipr_is_gata(res)) { | |
3485 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3486 | sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL); | |
3487 | if (!sata_port) | |
3488 | return -ENOMEM; | |
3489 | ||
3490 | ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost); | |
3491 | if (ap) { | |
3492 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3493 | sata_port->ioa_cfg = ioa_cfg; | |
3494 | sata_port->ap = ap; | |
3495 | sata_port->res = res; | |
3496 | ||
3497 | res->sata_port = sata_port; | |
3498 | ap->private_data = sata_port; | |
3499 | starget->hostdata = sata_port; | |
3500 | } else { | |
3501 | kfree(sata_port); | |
3502 | return -ENOMEM; | |
3503 | } | |
3504 | } | |
3505 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3506 | ||
3507 | return 0; | |
3508 | } | |
3509 | ||
3510 | /** | |
3511 | * ipr_target_destroy - Destroy a SCSI target | |
3512 | * @starget: scsi target struct | |
3513 | * | |
3514 | * If the device was a SATA device, this function frees the libata | |
3515 | * ATA port, else it does nothing. | |
3516 | * | |
3517 | **/ | |
3518 | static void ipr_target_destroy(struct scsi_target *starget) | |
3519 | { | |
3520 | struct ipr_sata_port *sata_port = starget->hostdata; | |
3521 | ||
3522 | if (sata_port) { | |
3523 | starget->hostdata = NULL; | |
3524 | ata_sas_port_destroy(sata_port->ap); | |
3525 | kfree(sata_port); | |
3526 | } | |
3527 | } | |
3528 | ||
3529 | /** | |
3530 | * ipr_find_sdev - Find device based on bus/target/lun. | |
3531 | * @sdev: scsi device struct | |
3532 | * | |
3533 | * Return value: | |
3534 | * resource entry pointer if found / NULL if not found | |
3535 | **/ | |
3536 | static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev) | |
3537 | { | |
3538 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
3539 | struct ipr_resource_entry *res; | |
3540 | ||
3541 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3542 | if ((res->cfgte.res_addr.bus == sdev->channel) && | |
3543 | (res->cfgte.res_addr.target == sdev->id) && | |
3544 | (res->cfgte.res_addr.lun == sdev->lun)) | |
3545 | return res; | |
3546 | } | |
3547 | ||
3548 | return NULL; | |
3549 | } | |
3550 | ||
1da177e4 LT |
3551 | /** |
3552 | * ipr_slave_destroy - Unconfigure a SCSI device | |
3553 | * @sdev: scsi device struct | |
3554 | * | |
3555 | * Return value: | |
3556 | * nothing | |
3557 | **/ | |
3558 | static void ipr_slave_destroy(struct scsi_device *sdev) | |
3559 | { | |
3560 | struct ipr_resource_entry *res; | |
3561 | struct ipr_ioa_cfg *ioa_cfg; | |
3562 | unsigned long lock_flags = 0; | |
3563 | ||
3564 | ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
3565 | ||
3566 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3567 | res = (struct ipr_resource_entry *) sdev->hostdata; | |
3568 | if (res) { | |
35a39691 BK |
3569 | if (res->sata_port) |
3570 | ata_port_disable(res->sata_port->ap); | |
1da177e4 LT |
3571 | sdev->hostdata = NULL; |
3572 | res->sdev = NULL; | |
35a39691 | 3573 | res->sata_port = NULL; |
1da177e4 LT |
3574 | } |
3575 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3576 | } | |
3577 | ||
3578 | /** | |
3579 | * ipr_slave_configure - Configure a SCSI device | |
3580 | * @sdev: scsi device struct | |
3581 | * | |
3582 | * This function configures the specified scsi device. | |
3583 | * | |
3584 | * Return value: | |
3585 | * 0 on success | |
3586 | **/ | |
3587 | static int ipr_slave_configure(struct scsi_device *sdev) | |
3588 | { | |
3589 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
3590 | struct ipr_resource_entry *res; | |
3591 | unsigned long lock_flags = 0; | |
3592 | ||
3593 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3594 | res = sdev->hostdata; | |
3595 | if (res) { | |
3596 | if (ipr_is_af_dasd_device(res)) | |
3597 | sdev->type = TYPE_RAID; | |
0726ce26 | 3598 | if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { |
1da177e4 | 3599 | sdev->scsi_level = 4; |
0726ce26 | 3600 | sdev->no_uld_attach = 1; |
3601 | } | |
1da177e4 LT |
3602 | if (ipr_is_vset_device(res)) { |
3603 | sdev->timeout = IPR_VSET_RW_TIMEOUT; | |
3604 | blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); | |
3605 | } | |
e4fbf44e | 3606 | if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)) |
1da177e4 | 3607 | sdev->allow_restart = 1; |
35a39691 BK |
3608 | if (ipr_is_gata(res) && res->sata_port) { |
3609 | scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN); | |
3610 | ata_sas_slave_configure(sdev, res->sata_port->ap); | |
3611 | } else { | |
3612 | scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); | |
3613 | } | |
1da177e4 LT |
3614 | } |
3615 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3616 | return 0; | |
3617 | } | |
3618 | ||
35a39691 BK |
3619 | /** |
3620 | * ipr_ata_slave_alloc - Prepare for commands to a SATA device | |
3621 | * @sdev: scsi device struct | |
3622 | * | |
3623 | * This function initializes an ATA port so that future commands | |
3624 | * sent through queuecommand will work. | |
3625 | * | |
3626 | * Return value: | |
3627 | * 0 on success | |
3628 | **/ | |
3629 | static int ipr_ata_slave_alloc(struct scsi_device *sdev) | |
3630 | { | |
3631 | struct ipr_sata_port *sata_port = NULL; | |
3632 | int rc = -ENXIO; | |
3633 | ||
3634 | ENTER; | |
3635 | if (sdev->sdev_target) | |
3636 | sata_port = sdev->sdev_target->hostdata; | |
3637 | if (sata_port) | |
3638 | rc = ata_sas_port_init(sata_port->ap); | |
3639 | if (rc) | |
3640 | ipr_slave_destroy(sdev); | |
3641 | ||
3642 | LEAVE; | |
3643 | return rc; | |
3644 | } | |
3645 | ||
1da177e4 LT |
3646 | /** |
3647 | * ipr_slave_alloc - Prepare for commands to a device. | |
3648 | * @sdev: scsi device struct | |
3649 | * | |
3650 | * This function saves a pointer to the resource entry | |
3651 | * in the scsi device struct if the device exists. We | |
3652 | * can then use this pointer in ipr_queuecommand when | |
3653 | * handling new commands. | |
3654 | * | |
3655 | * Return value: | |
692aebfc | 3656 | * 0 on success / -ENXIO if device does not exist |
1da177e4 LT |
3657 | **/ |
3658 | static int ipr_slave_alloc(struct scsi_device *sdev) | |
3659 | { | |
3660 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
3661 | struct ipr_resource_entry *res; | |
3662 | unsigned long lock_flags; | |
692aebfc | 3663 | int rc = -ENXIO; |
1da177e4 LT |
3664 | |
3665 | sdev->hostdata = NULL; | |
3666 | ||
3667 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3668 | ||
35a39691 BK |
3669 | res = ipr_find_sdev(sdev); |
3670 | if (res) { | |
3671 | res->sdev = sdev; | |
3672 | res->add_to_ml = 0; | |
3673 | res->in_erp = 0; | |
3674 | sdev->hostdata = res; | |
3675 | if (!ipr_is_naca_model(res)) | |
3676 | res->needs_sync_complete = 1; | |
3677 | rc = 0; | |
3678 | if (ipr_is_gata(res)) { | |
3679 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3680 | return ipr_ata_slave_alloc(sdev); | |
1da177e4 LT |
3681 | } |
3682 | } | |
3683 | ||
3684 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3685 | ||
692aebfc | 3686 | return rc; |
1da177e4 LT |
3687 | } |
3688 | ||
3689 | /** | |
3690 | * ipr_eh_host_reset - Reset the host adapter | |
3691 | * @scsi_cmd: scsi command struct | |
3692 | * | |
3693 | * Return value: | |
3694 | * SUCCESS / FAILED | |
3695 | **/ | |
df0ae249 | 3696 | static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd) |
1da177e4 LT |
3697 | { |
3698 | struct ipr_ioa_cfg *ioa_cfg; | |
3699 | int rc; | |
3700 | ||
3701 | ENTER; | |
3702 | ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; | |
3703 | ||
3704 | dev_err(&ioa_cfg->pdev->dev, | |
3705 | "Adapter being reset as a result of error recovery.\n"); | |
3706 | ||
3707 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
3708 | ioa_cfg->sdt_state = GET_DUMP; | |
3709 | ||
3710 | rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV); | |
3711 | ||
3712 | LEAVE; | |
3713 | return rc; | |
3714 | } | |
3715 | ||
df0ae249 JG |
3716 | static int ipr_eh_host_reset(struct scsi_cmnd * cmd) |
3717 | { | |
3718 | int rc; | |
3719 | ||
3720 | spin_lock_irq(cmd->device->host->host_lock); | |
3721 | rc = __ipr_eh_host_reset(cmd); | |
3722 | spin_unlock_irq(cmd->device->host->host_lock); | |
3723 | ||
3724 | return rc; | |
3725 | } | |
3726 | ||
c6513096 BK |
3727 | /** |
3728 | * ipr_device_reset - Reset the device | |
3729 | * @ioa_cfg: ioa config struct | |
3730 | * @res: resource entry struct | |
3731 | * | |
3732 | * This function issues a device reset to the affected device. | |
3733 | * If the device is a SCSI device, a LUN reset will be sent | |
3734 | * to the device first. If that does not work, a target reset | |
35a39691 BK |
3735 | * will be sent. If the device is a SATA device, a PHY reset will |
3736 | * be sent. | |
c6513096 BK |
3737 | * |
3738 | * Return value: | |
3739 | * 0 on success / non-zero on failure | |
3740 | **/ | |
3741 | static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg, | |
3742 | struct ipr_resource_entry *res) | |
3743 | { | |
3744 | struct ipr_cmnd *ipr_cmd; | |
3745 | struct ipr_ioarcb *ioarcb; | |
3746 | struct ipr_cmd_pkt *cmd_pkt; | |
35a39691 | 3747 | struct ipr_ioarcb_ata_regs *regs; |
c6513096 BK |
3748 | u32 ioasc; |
3749 | ||
3750 | ENTER; | |
3751 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
3752 | ioarcb = &ipr_cmd->ioarcb; | |
3753 | cmd_pkt = &ioarcb->cmd_pkt; | |
35a39691 | 3754 | regs = &ioarcb->add_data.u.regs; |
c6513096 BK |
3755 | |
3756 | ioarcb->res_handle = res->cfgte.res_handle; | |
3757 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
3758 | cmd_pkt->cdb[0] = IPR_RESET_DEVICE; | |
35a39691 BK |
3759 | if (ipr_is_gata(res)) { |
3760 | cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET; | |
3761 | ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(regs->flags)); | |
3762 | regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; | |
3763 | } | |
c6513096 BK |
3764 | |
3765 | ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); | |
3766 | ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
3767 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
35a39691 BK |
3768 | if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) |
3769 | memcpy(&res->sata_port->ioasa, &ipr_cmd->ioasa.u.gata, | |
3770 | sizeof(struct ipr_ioasa_gata)); | |
c6513096 BK |
3771 | |
3772 | LEAVE; | |
3773 | return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0); | |
3774 | } | |
3775 | ||
35a39691 BK |
3776 | /** |
3777 | * ipr_sata_reset - Reset the SATA port | |
3778 | * @ap: SATA port to reset | |
3779 | * @classes: class of the attached device | |
3780 | * | |
3781 | * This function issues a SATA phy reset to the affected ATA port. | |
3782 | * | |
3783 | * Return value: | |
3784 | * 0 on success / non-zero on failure | |
3785 | **/ | |
120bda35 AM |
3786 | static int ipr_sata_reset(struct ata_port *ap, unsigned int *classes, |
3787 | unsigned long deadline) | |
35a39691 BK |
3788 | { |
3789 | struct ipr_sata_port *sata_port = ap->private_data; | |
3790 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; | |
3791 | struct ipr_resource_entry *res; | |
3792 | unsigned long lock_flags = 0; | |
3793 | int rc = -ENXIO; | |
3794 | ||
3795 | ENTER; | |
3796 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
73d98ff0 BK |
3797 | while(ioa_cfg->in_reset_reload) { |
3798 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3799 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
3800 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3801 | } | |
3802 | ||
35a39691 BK |
3803 | res = sata_port->res; |
3804 | if (res) { | |
3805 | rc = ipr_device_reset(ioa_cfg, res); | |
3806 | switch(res->cfgte.proto) { | |
3807 | case IPR_PROTO_SATA: | |
3808 | case IPR_PROTO_SAS_STP: | |
3809 | *classes = ATA_DEV_ATA; | |
3810 | break; | |
3811 | case IPR_PROTO_SATA_ATAPI: | |
3812 | case IPR_PROTO_SAS_STP_ATAPI: | |
3813 | *classes = ATA_DEV_ATAPI; | |
3814 | break; | |
3815 | default: | |
3816 | *classes = ATA_DEV_UNKNOWN; | |
3817 | break; | |
3818 | }; | |
3819 | } | |
3820 | ||
3821 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3822 | LEAVE; | |
3823 | return rc; | |
3824 | } | |
3825 | ||
1da177e4 LT |
3826 | /** |
3827 | * ipr_eh_dev_reset - Reset the device | |
3828 | * @scsi_cmd: scsi command struct | |
3829 | * | |
3830 | * This function issues a device reset to the affected device. | |
3831 | * A LUN reset will be sent to the device first. If that does | |
3832 | * not work, a target reset will be sent. | |
3833 | * | |
3834 | * Return value: | |
3835 | * SUCCESS / FAILED | |
3836 | **/ | |
94d0e7b8 | 3837 | static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd) |
1da177e4 LT |
3838 | { |
3839 | struct ipr_cmnd *ipr_cmd; | |
3840 | struct ipr_ioa_cfg *ioa_cfg; | |
3841 | struct ipr_resource_entry *res; | |
35a39691 BK |
3842 | struct ata_port *ap; |
3843 | int rc = 0; | |
1da177e4 LT |
3844 | |
3845 | ENTER; | |
3846 | ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; | |
3847 | res = scsi_cmd->device->hostdata; | |
3848 | ||
eeb88307 | 3849 | if (!res) |
1da177e4 LT |
3850 | return FAILED; |
3851 | ||
3852 | /* | |
3853 | * If we are currently going through reset/reload, return failed. This will force the | |
3854 | * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the | |
3855 | * reset to complete | |
3856 | */ | |
3857 | if (ioa_cfg->in_reset_reload) | |
3858 | return FAILED; | |
3859 | if (ioa_cfg->ioa_is_dead) | |
3860 | return FAILED; | |
3861 | ||
3862 | list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { | |
3863 | if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) { | |
3864 | if (ipr_cmd->scsi_cmd) | |
3865 | ipr_cmd->done = ipr_scsi_eh_done; | |
24d6f2b5 BK |
3866 | if (ipr_cmd->qc) |
3867 | ipr_cmd->done = ipr_sata_eh_done; | |
7402ecef BK |
3868 | if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) { |
3869 | ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT; | |
3870 | ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED; | |
3871 | } | |
1da177e4 LT |
3872 | } |
3873 | } | |
3874 | ||
3875 | res->resetting_device = 1; | |
fb3ed3cb | 3876 | scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n"); |
35a39691 BK |
3877 | |
3878 | if (ipr_is_gata(res) && res->sata_port) { | |
3879 | ap = res->sata_port->ap; | |
3880 | spin_unlock_irq(scsi_cmd->device->host->host_lock); | |
3881 | ata_do_eh(ap, NULL, NULL, ipr_sata_reset, NULL); | |
3882 | spin_lock_irq(scsi_cmd->device->host->host_lock); | |
3883 | } else | |
3884 | rc = ipr_device_reset(ioa_cfg, res); | |
1da177e4 LT |
3885 | res->resetting_device = 0; |
3886 | ||
1da177e4 | 3887 | LEAVE; |
c6513096 | 3888 | return (rc ? FAILED : SUCCESS); |
1da177e4 LT |
3889 | } |
3890 | ||
94d0e7b8 JG |
3891 | static int ipr_eh_dev_reset(struct scsi_cmnd * cmd) |
3892 | { | |
3893 | int rc; | |
3894 | ||
3895 | spin_lock_irq(cmd->device->host->host_lock); | |
3896 | rc = __ipr_eh_dev_reset(cmd); | |
3897 | spin_unlock_irq(cmd->device->host->host_lock); | |
3898 | ||
3899 | return rc; | |
3900 | } | |
3901 | ||
1da177e4 LT |
3902 | /** |
3903 | * ipr_bus_reset_done - Op done function for bus reset. | |
3904 | * @ipr_cmd: ipr command struct | |
3905 | * | |
3906 | * This function is the op done function for a bus reset | |
3907 | * | |
3908 | * Return value: | |
3909 | * none | |
3910 | **/ | |
3911 | static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) | |
3912 | { | |
3913 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
3914 | struct ipr_resource_entry *res; | |
3915 | ||
3916 | ENTER; | |
3917 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3918 | if (!memcmp(&res->cfgte.res_handle, &ipr_cmd->ioarcb.res_handle, | |
3919 | sizeof(res->cfgte.res_handle))) { | |
3920 | scsi_report_bus_reset(ioa_cfg->host, res->cfgte.res_addr.bus); | |
3921 | break; | |
3922 | } | |
3923 | } | |
3924 | ||
3925 | /* | |
3926 | * If abort has not completed, indicate the reset has, else call the | |
3927 | * abort's done function to wake the sleeping eh thread | |
3928 | */ | |
3929 | if (ipr_cmd->sibling->sibling) | |
3930 | ipr_cmd->sibling->sibling = NULL; | |
3931 | else | |
3932 | ipr_cmd->sibling->done(ipr_cmd->sibling); | |
3933 | ||
3934 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
3935 | LEAVE; | |
3936 | } | |
3937 | ||
3938 | /** | |
3939 | * ipr_abort_timeout - An abort task has timed out | |
3940 | * @ipr_cmd: ipr command struct | |
3941 | * | |
3942 | * This function handles when an abort task times out. If this | |
3943 | * happens we issue a bus reset since we have resources tied | |
3944 | * up that must be freed before returning to the midlayer. | |
3945 | * | |
3946 | * Return value: | |
3947 | * none | |
3948 | **/ | |
3949 | static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd) | |
3950 | { | |
3951 | struct ipr_cmnd *reset_cmd; | |
3952 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
3953 | struct ipr_cmd_pkt *cmd_pkt; | |
3954 | unsigned long lock_flags = 0; | |
3955 | ||
3956 | ENTER; | |
3957 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3958 | if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { | |
3959 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3960 | return; | |
3961 | } | |
3962 | ||
fb3ed3cb | 3963 | sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n"); |
1da177e4 LT |
3964 | reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
3965 | ipr_cmd->sibling = reset_cmd; | |
3966 | reset_cmd->sibling = ipr_cmd; | |
3967 | reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; | |
3968 | cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; | |
3969 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
3970 | cmd_pkt->cdb[0] = IPR_RESET_DEVICE; | |
3971 | cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; | |
3972 | ||
3973 | ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); | |
3974 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3975 | LEAVE; | |
3976 | } | |
3977 | ||
3978 | /** | |
3979 | * ipr_cancel_op - Cancel specified op | |
3980 | * @scsi_cmd: scsi command struct | |
3981 | * | |
3982 | * This function cancels specified op. | |
3983 | * | |
3984 | * Return value: | |
3985 | * SUCCESS / FAILED | |
3986 | **/ | |
3987 | static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd) | |
3988 | { | |
3989 | struct ipr_cmnd *ipr_cmd; | |
3990 | struct ipr_ioa_cfg *ioa_cfg; | |
3991 | struct ipr_resource_entry *res; | |
3992 | struct ipr_cmd_pkt *cmd_pkt; | |
3993 | u32 ioasc; | |
3994 | int op_found = 0; | |
3995 | ||
3996 | ENTER; | |
3997 | ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; | |
3998 | res = scsi_cmd->device->hostdata; | |
3999 | ||
8fa728a2 JG |
4000 | /* If we are currently going through reset/reload, return failed. |
4001 | * This will force the mid-layer to call ipr_eh_host_reset, | |
4002 | * which will then go to sleep and wait for the reset to complete | |
4003 | */ | |
4004 | if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead) | |
4005 | return FAILED; | |
04d9768f | 4006 | if (!res || !ipr_is_gscsi(res)) |
1da177e4 LT |
4007 | return FAILED; |
4008 | ||
4009 | list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { | |
4010 | if (ipr_cmd->scsi_cmd == scsi_cmd) { | |
4011 | ipr_cmd->done = ipr_scsi_eh_done; | |
4012 | op_found = 1; | |
4013 | break; | |
4014 | } | |
4015 | } | |
4016 | ||
4017 | if (!op_found) | |
4018 | return SUCCESS; | |
4019 | ||
4020 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
4021 | ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle; | |
4022 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; | |
4023 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
4024 | cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; | |
4025 | ipr_cmd->u.sdev = scsi_cmd->device; | |
4026 | ||
fb3ed3cb BK |
4027 | scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n", |
4028 | scsi_cmd->cmnd[0]); | |
1da177e4 LT |
4029 | ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); |
4030 | ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
4031 | ||
4032 | /* | |
4033 | * If the abort task timed out and we sent a bus reset, we will get | |
4034 | * one the following responses to the abort | |
4035 | */ | |
4036 | if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { | |
4037 | ioasc = 0; | |
4038 | ipr_trace; | |
4039 | } | |
4040 | ||
4041 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
ee0a90fa | 4042 | if (!ipr_is_naca_model(res)) |
4043 | res->needs_sync_complete = 1; | |
1da177e4 LT |
4044 | |
4045 | LEAVE; | |
4046 | return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS); | |
4047 | } | |
4048 | ||
4049 | /** | |
4050 | * ipr_eh_abort - Abort a single op | |
4051 | * @scsi_cmd: scsi command struct | |
4052 | * | |
4053 | * Return value: | |
4054 | * SUCCESS / FAILED | |
4055 | **/ | |
4056 | static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd) | |
4057 | { | |
8fa728a2 JG |
4058 | unsigned long flags; |
4059 | int rc; | |
1da177e4 LT |
4060 | |
4061 | ENTER; | |
1da177e4 | 4062 | |
8fa728a2 JG |
4063 | spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); |
4064 | rc = ipr_cancel_op(scsi_cmd); | |
4065 | spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags); | |
1da177e4 LT |
4066 | |
4067 | LEAVE; | |
8fa728a2 | 4068 | return rc; |
1da177e4 LT |
4069 | } |
4070 | ||
4071 | /** | |
4072 | * ipr_handle_other_interrupt - Handle "other" interrupts | |
4073 | * @ioa_cfg: ioa config struct | |
4074 | * @int_reg: interrupt register | |
4075 | * | |
4076 | * Return value: | |
4077 | * IRQ_NONE / IRQ_HANDLED | |
4078 | **/ | |
4079 | static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, | |
4080 | volatile u32 int_reg) | |
4081 | { | |
4082 | irqreturn_t rc = IRQ_HANDLED; | |
4083 | ||
4084 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { | |
4085 | /* Mask the interrupt */ | |
4086 | writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg); | |
4087 | ||
4088 | /* Clear the interrupt */ | |
4089 | writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg); | |
4090 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
4091 | ||
4092 | list_del(&ioa_cfg->reset_cmd->queue); | |
4093 | del_timer(&ioa_cfg->reset_cmd->timer); | |
4094 | ipr_reset_ioa_job(ioa_cfg->reset_cmd); | |
4095 | } else { | |
4096 | if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) | |
4097 | ioa_cfg->ioa_unit_checked = 1; | |
4098 | else | |
4099 | dev_err(&ioa_cfg->pdev->dev, | |
4100 | "Permanent IOA failure. 0x%08X\n", int_reg); | |
4101 | ||
4102 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
4103 | ioa_cfg->sdt_state = GET_DUMP; | |
4104 | ||
4105 | ipr_mask_and_clear_interrupts(ioa_cfg, ~0); | |
4106 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
4107 | } | |
4108 | ||
4109 | return rc; | |
4110 | } | |
4111 | ||
4112 | /** | |
4113 | * ipr_isr - Interrupt service routine | |
4114 | * @irq: irq number | |
4115 | * @devp: pointer to ioa config struct | |
1da177e4 LT |
4116 | * |
4117 | * Return value: | |
4118 | * IRQ_NONE / IRQ_HANDLED | |
4119 | **/ | |
7d12e780 | 4120 | static irqreturn_t ipr_isr(int irq, void *devp) |
1da177e4 LT |
4121 | { |
4122 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; | |
4123 | unsigned long lock_flags = 0; | |
4124 | volatile u32 int_reg, int_mask_reg; | |
4125 | u32 ioasc; | |
4126 | u16 cmd_index; | |
4127 | struct ipr_cmnd *ipr_cmd; | |
4128 | irqreturn_t rc = IRQ_NONE; | |
4129 | ||
4130 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4131 | ||
4132 | /* If interrupts are disabled, ignore the interrupt */ | |
4133 | if (!ioa_cfg->allow_interrupts) { | |
4134 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4135 | return IRQ_NONE; | |
4136 | } | |
4137 | ||
4138 | int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
4139 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; | |
4140 | ||
4141 | /* If an interrupt on the adapter did not occur, ignore it */ | |
4142 | if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) { | |
4143 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4144 | return IRQ_NONE; | |
4145 | } | |
4146 | ||
4147 | while (1) { | |
4148 | ipr_cmd = NULL; | |
4149 | ||
4150 | while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == | |
4151 | ioa_cfg->toggle_bit) { | |
4152 | ||
4153 | cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) & | |
4154 | IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; | |
4155 | ||
4156 | if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) { | |
4157 | ioa_cfg->errors_logged++; | |
4158 | dev_err(&ioa_cfg->pdev->dev, "Invalid response handle from IOA\n"); | |
4159 | ||
4160 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
4161 | ioa_cfg->sdt_state = GET_DUMP; | |
4162 | ||
4163 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
4164 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4165 | return IRQ_HANDLED; | |
4166 | } | |
4167 | ||
4168 | ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; | |
4169 | ||
4170 | ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
4171 | ||
4172 | ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc); | |
4173 | ||
4174 | list_del(&ipr_cmd->queue); | |
4175 | del_timer(&ipr_cmd->timer); | |
4176 | ipr_cmd->done(ipr_cmd); | |
4177 | ||
4178 | rc = IRQ_HANDLED; | |
4179 | ||
4180 | if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) { | |
4181 | ioa_cfg->hrrq_curr++; | |
4182 | } else { | |
4183 | ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; | |
4184 | ioa_cfg->toggle_bit ^= 1u; | |
4185 | } | |
4186 | } | |
4187 | ||
4188 | if (ipr_cmd != NULL) { | |
4189 | /* Clear the PCI interrupt */ | |
4190 | writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg); | |
4191 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; | |
4192 | } else | |
4193 | break; | |
4194 | } | |
4195 | ||
4196 | if (unlikely(rc == IRQ_NONE)) | |
4197 | rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); | |
4198 | ||
4199 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4200 | return rc; | |
4201 | } | |
4202 | ||
4203 | /** | |
4204 | * ipr_build_ioadl - Build a scatter/gather list and map the buffer | |
4205 | * @ioa_cfg: ioa config struct | |
4206 | * @ipr_cmd: ipr command struct | |
4207 | * | |
4208 | * Return value: | |
4209 | * 0 on success / -1 on failure | |
4210 | **/ | |
4211 | static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, | |
4212 | struct ipr_cmnd *ipr_cmd) | |
4213 | { | |
4214 | int i; | |
4215 | struct scatterlist *sglist; | |
4216 | u32 length; | |
4217 | u32 ioadl_flags = 0; | |
4218 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
4219 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
4220 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
4221 | ||
4222 | length = scsi_cmd->request_bufflen; | |
4223 | ||
4224 | if (length == 0) | |
4225 | return 0; | |
4226 | ||
4227 | if (scsi_cmd->use_sg) { | |
4228 | ipr_cmd->dma_use_sg = pci_map_sg(ioa_cfg->pdev, | |
4229 | scsi_cmd->request_buffer, | |
4230 | scsi_cmd->use_sg, | |
4231 | scsi_cmd->sc_data_direction); | |
4232 | ||
4233 | if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { | |
4234 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; | |
4235 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
4236 | ioarcb->write_data_transfer_length = cpu_to_be32(length); | |
4237 | ioarcb->write_ioadl_len = | |
4238 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
4239 | } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
4240 | ioadl_flags = IPR_IOADL_FLAGS_READ; | |
4241 | ioarcb->read_data_transfer_length = cpu_to_be32(length); | |
4242 | ioarcb->read_ioadl_len = | |
4243 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
4244 | } | |
4245 | ||
4246 | sglist = scsi_cmd->request_buffer; | |
4247 | ||
51b1c7e1 BK |
4248 | if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->add_data.u.ioadl)) { |
4249 | ioadl = ioarcb->add_data.u.ioadl; | |
4250 | ioarcb->write_ioadl_addr = | |
4251 | cpu_to_be32(be32_to_cpu(ioarcb->ioarcb_host_pci_addr) + | |
4252 | offsetof(struct ipr_ioarcb, add_data)); | |
4253 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; | |
4254 | } | |
4255 | ||
1da177e4 LT |
4256 | for (i = 0; i < ipr_cmd->dma_use_sg; i++) { |
4257 | ioadl[i].flags_and_data_len = | |
4258 | cpu_to_be32(ioadl_flags | sg_dma_len(&sglist[i])); | |
4259 | ioadl[i].address = | |
4260 | cpu_to_be32(sg_dma_address(&sglist[i])); | |
4261 | } | |
4262 | ||
4263 | if (likely(ipr_cmd->dma_use_sg)) { | |
4264 | ioadl[i-1].flags_and_data_len |= | |
4265 | cpu_to_be32(IPR_IOADL_FLAGS_LAST); | |
4266 | return 0; | |
4267 | } else | |
4268 | dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); | |
4269 | } else { | |
4270 | if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { | |
4271 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; | |
4272 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
4273 | ioarcb->write_data_transfer_length = cpu_to_be32(length); | |
4274 | ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
4275 | } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
4276 | ioadl_flags = IPR_IOADL_FLAGS_READ; | |
4277 | ioarcb->read_data_transfer_length = cpu_to_be32(length); | |
4278 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
4279 | } | |
4280 | ||
4281 | ipr_cmd->dma_handle = pci_map_single(ioa_cfg->pdev, | |
4282 | scsi_cmd->request_buffer, length, | |
4283 | scsi_cmd->sc_data_direction); | |
4284 | ||
4285 | if (likely(!pci_dma_mapping_error(ipr_cmd->dma_handle))) { | |
51b1c7e1 BK |
4286 | ioadl = ioarcb->add_data.u.ioadl; |
4287 | ioarcb->write_ioadl_addr = | |
4288 | cpu_to_be32(be32_to_cpu(ioarcb->ioarcb_host_pci_addr) + | |
4289 | offsetof(struct ipr_ioarcb, add_data)); | |
4290 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; | |
1da177e4 LT |
4291 | ipr_cmd->dma_use_sg = 1; |
4292 | ioadl[0].flags_and_data_len = | |
4293 | cpu_to_be32(ioadl_flags | length | IPR_IOADL_FLAGS_LAST); | |
4294 | ioadl[0].address = cpu_to_be32(ipr_cmd->dma_handle); | |
4295 | return 0; | |
4296 | } else | |
4297 | dev_err(&ioa_cfg->pdev->dev, "pci_map_single failed!\n"); | |
4298 | } | |
4299 | ||
4300 | return -1; | |
4301 | } | |
4302 | ||
4303 | /** | |
4304 | * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes | |
4305 | * @scsi_cmd: scsi command struct | |
4306 | * | |
4307 | * Return value: | |
4308 | * task attributes | |
4309 | **/ | |
4310 | static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd) | |
4311 | { | |
4312 | u8 tag[2]; | |
4313 | u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK; | |
4314 | ||
4315 | if (scsi_populate_tag_msg(scsi_cmd, tag)) { | |
4316 | switch (tag[0]) { | |
4317 | case MSG_SIMPLE_TAG: | |
4318 | rc = IPR_FLAGS_LO_SIMPLE_TASK; | |
4319 | break; | |
4320 | case MSG_HEAD_TAG: | |
4321 | rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK; | |
4322 | break; | |
4323 | case MSG_ORDERED_TAG: | |
4324 | rc = IPR_FLAGS_LO_ORDERED_TASK; | |
4325 | break; | |
4326 | }; | |
4327 | } | |
4328 | ||
4329 | return rc; | |
4330 | } | |
4331 | ||
4332 | /** | |
4333 | * ipr_erp_done - Process completion of ERP for a device | |
4334 | * @ipr_cmd: ipr command struct | |
4335 | * | |
4336 | * This function copies the sense buffer into the scsi_cmd | |
4337 | * struct and pushes the scsi_done function. | |
4338 | * | |
4339 | * Return value: | |
4340 | * nothing | |
4341 | **/ | |
4342 | static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) | |
4343 | { | |
4344 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
4345 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; | |
4346 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4347 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
4348 | ||
4349 | if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { | |
4350 | scsi_cmd->result |= (DID_ERROR << 16); | |
fb3ed3cb BK |
4351 | scmd_printk(KERN_ERR, scsi_cmd, |
4352 | "Request Sense failed with IOASC: 0x%08X\n", ioasc); | |
1da177e4 LT |
4353 | } else { |
4354 | memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, | |
4355 | SCSI_SENSE_BUFFERSIZE); | |
4356 | } | |
4357 | ||
4358 | if (res) { | |
ee0a90fa | 4359 | if (!ipr_is_naca_model(res)) |
4360 | res->needs_sync_complete = 1; | |
1da177e4 LT |
4361 | res->in_erp = 0; |
4362 | } | |
4363 | ipr_unmap_sglist(ioa_cfg, ipr_cmd); | |
4364 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4365 | scsi_cmd->scsi_done(scsi_cmd); | |
4366 | } | |
4367 | ||
4368 | /** | |
4369 | * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP | |
4370 | * @ipr_cmd: ipr command struct | |
4371 | * | |
4372 | * Return value: | |
4373 | * none | |
4374 | **/ | |
4375 | static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) | |
4376 | { | |
51b1c7e1 BK |
4377 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
4378 | struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; | |
4379 | dma_addr_t dma_addr = be32_to_cpu(ioarcb->ioarcb_host_pci_addr); | |
1da177e4 LT |
4380 | |
4381 | memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); | |
4382 | ioarcb->write_data_transfer_length = 0; | |
4383 | ioarcb->read_data_transfer_length = 0; | |
4384 | ioarcb->write_ioadl_len = 0; | |
4385 | ioarcb->read_ioadl_len = 0; | |
4386 | ioasa->ioasc = 0; | |
4387 | ioasa->residual_data_len = 0; | |
51b1c7e1 BK |
4388 | ioarcb->write_ioadl_addr = |
4389 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl)); | |
4390 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; | |
1da177e4 LT |
4391 | } |
4392 | ||
4393 | /** | |
4394 | * ipr_erp_request_sense - Send request sense to a device | |
4395 | * @ipr_cmd: ipr command struct | |
4396 | * | |
4397 | * This function sends a request sense to a device as a result | |
4398 | * of a check condition. | |
4399 | * | |
4400 | * Return value: | |
4401 | * nothing | |
4402 | **/ | |
4403 | static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) | |
4404 | { | |
4405 | struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; | |
4406 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
4407 | ||
4408 | if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { | |
4409 | ipr_erp_done(ipr_cmd); | |
4410 | return; | |
4411 | } | |
4412 | ||
4413 | ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); | |
4414 | ||
4415 | cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; | |
4416 | cmd_pkt->cdb[0] = REQUEST_SENSE; | |
4417 | cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; | |
4418 | cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; | |
4419 | cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; | |
4420 | cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); | |
4421 | ||
4422 | ipr_cmd->ioadl[0].flags_and_data_len = | |
4423 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | SCSI_SENSE_BUFFERSIZE); | |
4424 | ipr_cmd->ioadl[0].address = | |
4425 | cpu_to_be32(ipr_cmd->sense_buffer_dma); | |
4426 | ||
4427 | ipr_cmd->ioarcb.read_ioadl_len = | |
4428 | cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
4429 | ipr_cmd->ioarcb.read_data_transfer_length = | |
4430 | cpu_to_be32(SCSI_SENSE_BUFFERSIZE); | |
4431 | ||
4432 | ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout, | |
4433 | IPR_REQUEST_SENSE_TIMEOUT * 2); | |
4434 | } | |
4435 | ||
4436 | /** | |
4437 | * ipr_erp_cancel_all - Send cancel all to a device | |
4438 | * @ipr_cmd: ipr command struct | |
4439 | * | |
4440 | * This function sends a cancel all to a device to clear the | |
4441 | * queue. If we are running TCQ on the device, QERR is set to 1, | |
4442 | * which means all outstanding ops have been dropped on the floor. | |
4443 | * Cancel all will return them to us. | |
4444 | * | |
4445 | * Return value: | |
4446 | * nothing | |
4447 | **/ | |
4448 | static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) | |
4449 | { | |
4450 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
4451 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; | |
4452 | struct ipr_cmd_pkt *cmd_pkt; | |
4453 | ||
4454 | res->in_erp = 1; | |
4455 | ||
4456 | ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); | |
4457 | ||
4458 | if (!scsi_get_tag_type(scsi_cmd->device)) { | |
4459 | ipr_erp_request_sense(ipr_cmd); | |
4460 | return; | |
4461 | } | |
4462 | ||
4463 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; | |
4464 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
4465 | cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; | |
4466 | ||
4467 | ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout, | |
4468 | IPR_CANCEL_ALL_TIMEOUT); | |
4469 | } | |
4470 | ||
4471 | /** | |
4472 | * ipr_dump_ioasa - Dump contents of IOASA | |
4473 | * @ioa_cfg: ioa config struct | |
4474 | * @ipr_cmd: ipr command struct | |
fe964d0a | 4475 | * @res: resource entry struct |
1da177e4 LT |
4476 | * |
4477 | * This function is invoked by the interrupt handler when ops | |
4478 | * fail. It will log the IOASA if appropriate. Only called | |
4479 | * for GPDD ops. | |
4480 | * | |
4481 | * Return value: | |
4482 | * none | |
4483 | **/ | |
4484 | static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, | |
fe964d0a | 4485 | struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res) |
1da177e4 LT |
4486 | { |
4487 | int i; | |
4488 | u16 data_len; | |
b0692dd4 | 4489 | u32 ioasc, fd_ioasc; |
1da177e4 LT |
4490 | struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; |
4491 | __be32 *ioasa_data = (__be32 *)ioasa; | |
4492 | int error_index; | |
4493 | ||
4494 | ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK; | |
b0692dd4 | 4495 | fd_ioasc = be32_to_cpu(ioasa->fd_ioasc) & IPR_IOASC_IOASC_MASK; |
1da177e4 LT |
4496 | |
4497 | if (0 == ioasc) | |
4498 | return; | |
4499 | ||
4500 | if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) | |
4501 | return; | |
4502 | ||
b0692dd4 BK |
4503 | if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc) |
4504 | error_index = ipr_get_error(fd_ioasc); | |
4505 | else | |
4506 | error_index = ipr_get_error(ioasc); | |
1da177e4 LT |
4507 | |
4508 | if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { | |
4509 | /* Don't log an error if the IOA already logged one */ | |
4510 | if (ioasa->ilid != 0) | |
4511 | return; | |
4512 | ||
cc9bd5d4 BK |
4513 | if (!ipr_is_gscsi(res)) |
4514 | return; | |
4515 | ||
1da177e4 LT |
4516 | if (ipr_error_table[error_index].log_ioasa == 0) |
4517 | return; | |
4518 | } | |
4519 | ||
fe964d0a | 4520 | ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error); |
1da177e4 LT |
4521 | |
4522 | if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len)) | |
4523 | data_len = sizeof(struct ipr_ioasa); | |
4524 | else | |
4525 | data_len = be16_to_cpu(ioasa->ret_stat_len); | |
4526 | ||
4527 | ipr_err("IOASA Dump:\n"); | |
4528 | ||
4529 | for (i = 0; i < data_len / 4; i += 4) { | |
4530 | ipr_err("%08X: %08X %08X %08X %08X\n", i*4, | |
4531 | be32_to_cpu(ioasa_data[i]), | |
4532 | be32_to_cpu(ioasa_data[i+1]), | |
4533 | be32_to_cpu(ioasa_data[i+2]), | |
4534 | be32_to_cpu(ioasa_data[i+3])); | |
4535 | } | |
4536 | } | |
4537 | ||
4538 | /** | |
4539 | * ipr_gen_sense - Generate SCSI sense data from an IOASA | |
4540 | * @ioasa: IOASA | |
4541 | * @sense_buf: sense data buffer | |
4542 | * | |
4543 | * Return value: | |
4544 | * none | |
4545 | **/ | |
4546 | static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) | |
4547 | { | |
4548 | u32 failing_lba; | |
4549 | u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; | |
4550 | struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; | |
4551 | struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; | |
4552 | u32 ioasc = be32_to_cpu(ioasa->ioasc); | |
4553 | ||
4554 | memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); | |
4555 | ||
4556 | if (ioasc >= IPR_FIRST_DRIVER_IOASC) | |
4557 | return; | |
4558 | ||
4559 | ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; | |
4560 | ||
4561 | if (ipr_is_vset_device(res) && | |
4562 | ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && | |
4563 | ioasa->u.vset.failing_lba_hi != 0) { | |
4564 | sense_buf[0] = 0x72; | |
4565 | sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); | |
4566 | sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); | |
4567 | sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); | |
4568 | ||
4569 | sense_buf[7] = 12; | |
4570 | sense_buf[8] = 0; | |
4571 | sense_buf[9] = 0x0A; | |
4572 | sense_buf[10] = 0x80; | |
4573 | ||
4574 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); | |
4575 | ||
4576 | sense_buf[12] = (failing_lba & 0xff000000) >> 24; | |
4577 | sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; | |
4578 | sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; | |
4579 | sense_buf[15] = failing_lba & 0x000000ff; | |
4580 | ||
4581 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); | |
4582 | ||
4583 | sense_buf[16] = (failing_lba & 0xff000000) >> 24; | |
4584 | sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; | |
4585 | sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; | |
4586 | sense_buf[19] = failing_lba & 0x000000ff; | |
4587 | } else { | |
4588 | sense_buf[0] = 0x70; | |
4589 | sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); | |
4590 | sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); | |
4591 | sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); | |
4592 | ||
4593 | /* Illegal request */ | |
4594 | if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && | |
4595 | (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) { | |
4596 | sense_buf[7] = 10; /* additional length */ | |
4597 | ||
4598 | /* IOARCB was in error */ | |
4599 | if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) | |
4600 | sense_buf[15] = 0xC0; | |
4601 | else /* Parameter data was invalid */ | |
4602 | sense_buf[15] = 0x80; | |
4603 | ||
4604 | sense_buf[16] = | |
4605 | ((IPR_FIELD_POINTER_MASK & | |
4606 | be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff; | |
4607 | sense_buf[17] = | |
4608 | (IPR_FIELD_POINTER_MASK & | |
4609 | be32_to_cpu(ioasa->ioasc_specific)) & 0xff; | |
4610 | } else { | |
4611 | if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { | |
4612 | if (ipr_is_vset_device(res)) | |
4613 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); | |
4614 | else | |
4615 | failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); | |
4616 | ||
4617 | sense_buf[0] |= 0x80; /* Or in the Valid bit */ | |
4618 | sense_buf[3] = (failing_lba & 0xff000000) >> 24; | |
4619 | sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; | |
4620 | sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; | |
4621 | sense_buf[6] = failing_lba & 0x000000ff; | |
4622 | } | |
4623 | ||
4624 | sense_buf[7] = 6; /* additional length */ | |
4625 | } | |
4626 | } | |
4627 | } | |
4628 | ||
ee0a90fa | 4629 | /** |
4630 | * ipr_get_autosense - Copy autosense data to sense buffer | |
4631 | * @ipr_cmd: ipr command struct | |
4632 | * | |
4633 | * This function copies the autosense buffer to the buffer | |
4634 | * in the scsi_cmd, if there is autosense available. | |
4635 | * | |
4636 | * Return value: | |
4637 | * 1 if autosense was available / 0 if not | |
4638 | **/ | |
4639 | static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd) | |
4640 | { | |
4641 | struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; | |
4642 | ||
117d2ce1 | 4643 | if ((be32_to_cpu(ioasa->ioasc_specific) & IPR_AUTOSENSE_VALID) == 0) |
ee0a90fa | 4644 | return 0; |
4645 | ||
4646 | memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data, | |
4647 | min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len), | |
4648 | SCSI_SENSE_BUFFERSIZE)); | |
4649 | return 1; | |
4650 | } | |
4651 | ||
1da177e4 LT |
4652 | /** |
4653 | * ipr_erp_start - Process an error response for a SCSI op | |
4654 | * @ioa_cfg: ioa config struct | |
4655 | * @ipr_cmd: ipr command struct | |
4656 | * | |
4657 | * This function determines whether or not to initiate ERP | |
4658 | * on the affected device. | |
4659 | * | |
4660 | * Return value: | |
4661 | * nothing | |
4662 | **/ | |
4663 | static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, | |
4664 | struct ipr_cmnd *ipr_cmd) | |
4665 | { | |
4666 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
4667 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; | |
4668 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
8a048994 | 4669 | u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK; |
1da177e4 LT |
4670 | |
4671 | if (!res) { | |
4672 | ipr_scsi_eh_done(ipr_cmd); | |
4673 | return; | |
4674 | } | |
4675 | ||
8a048994 | 4676 | if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS) |
1da177e4 LT |
4677 | ipr_gen_sense(ipr_cmd); |
4678 | ||
cc9bd5d4 BK |
4679 | ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); |
4680 | ||
8a048994 | 4681 | switch (masked_ioasc) { |
1da177e4 | 4682 | case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: |
ee0a90fa | 4683 | if (ipr_is_naca_model(res)) |
4684 | scsi_cmd->result |= (DID_ABORT << 16); | |
4685 | else | |
4686 | scsi_cmd->result |= (DID_IMM_RETRY << 16); | |
1da177e4 LT |
4687 | break; |
4688 | case IPR_IOASC_IR_RESOURCE_HANDLE: | |
b0df54bb | 4689 | case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: |
1da177e4 LT |
4690 | scsi_cmd->result |= (DID_NO_CONNECT << 16); |
4691 | break; | |
4692 | case IPR_IOASC_HW_SEL_TIMEOUT: | |
4693 | scsi_cmd->result |= (DID_NO_CONNECT << 16); | |
ee0a90fa | 4694 | if (!ipr_is_naca_model(res)) |
4695 | res->needs_sync_complete = 1; | |
1da177e4 LT |
4696 | break; |
4697 | case IPR_IOASC_SYNC_REQUIRED: | |
4698 | if (!res->in_erp) | |
4699 | res->needs_sync_complete = 1; | |
4700 | scsi_cmd->result |= (DID_IMM_RETRY << 16); | |
4701 | break; | |
4702 | case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ | |
b0df54bb | 4703 | case IPR_IOASA_IR_DUAL_IOA_DISABLED: |
1da177e4 LT |
4704 | scsi_cmd->result |= (DID_PASSTHROUGH << 16); |
4705 | break; | |
4706 | case IPR_IOASC_BUS_WAS_RESET: | |
4707 | case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: | |
4708 | /* | |
4709 | * Report the bus reset and ask for a retry. The device | |
4710 | * will give CC/UA the next command. | |
4711 | */ | |
4712 | if (!res->resetting_device) | |
4713 | scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); | |
4714 | scsi_cmd->result |= (DID_ERROR << 16); | |
ee0a90fa | 4715 | if (!ipr_is_naca_model(res)) |
4716 | res->needs_sync_complete = 1; | |
1da177e4 LT |
4717 | break; |
4718 | case IPR_IOASC_HW_DEV_BUS_STATUS: | |
4719 | scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); | |
4720 | if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { | |
ee0a90fa | 4721 | if (!ipr_get_autosense(ipr_cmd)) { |
4722 | if (!ipr_is_naca_model(res)) { | |
4723 | ipr_erp_cancel_all(ipr_cmd); | |
4724 | return; | |
4725 | } | |
4726 | } | |
1da177e4 | 4727 | } |
ee0a90fa | 4728 | if (!ipr_is_naca_model(res)) |
4729 | res->needs_sync_complete = 1; | |
1da177e4 LT |
4730 | break; |
4731 | case IPR_IOASC_NR_INIT_CMD_REQUIRED: | |
4732 | break; | |
4733 | default: | |
5b7304fb BK |
4734 | if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) |
4735 | scsi_cmd->result |= (DID_ERROR << 16); | |
ee0a90fa | 4736 | if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res)) |
1da177e4 LT |
4737 | res->needs_sync_complete = 1; |
4738 | break; | |
4739 | } | |
4740 | ||
4741 | ipr_unmap_sglist(ioa_cfg, ipr_cmd); | |
4742 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4743 | scsi_cmd->scsi_done(scsi_cmd); | |
4744 | } | |
4745 | ||
4746 | /** | |
4747 | * ipr_scsi_done - mid-layer done function | |
4748 | * @ipr_cmd: ipr command struct | |
4749 | * | |
4750 | * This function is invoked by the interrupt handler for | |
4751 | * ops generated by the SCSI mid-layer | |
4752 | * | |
4753 | * Return value: | |
4754 | * none | |
4755 | **/ | |
4756 | static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) | |
4757 | { | |
4758 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4759 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
4760 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
4761 | ||
4762 | scsi_cmd->resid = be32_to_cpu(ipr_cmd->ioasa.residual_data_len); | |
4763 | ||
4764 | if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { | |
4765 | ipr_unmap_sglist(ioa_cfg, ipr_cmd); | |
4766 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4767 | scsi_cmd->scsi_done(scsi_cmd); | |
4768 | } else | |
4769 | ipr_erp_start(ioa_cfg, ipr_cmd); | |
4770 | } | |
4771 | ||
1da177e4 LT |
4772 | /** |
4773 | * ipr_queuecommand - Queue a mid-layer request | |
4774 | * @scsi_cmd: scsi command struct | |
4775 | * @done: done function | |
4776 | * | |
4777 | * This function queues a request generated by the mid-layer. | |
4778 | * | |
4779 | * Return value: | |
4780 | * 0 on success | |
4781 | * SCSI_MLQUEUE_DEVICE_BUSY if device is busy | |
4782 | * SCSI_MLQUEUE_HOST_BUSY if host is busy | |
4783 | **/ | |
4784 | static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd, | |
4785 | void (*done) (struct scsi_cmnd *)) | |
4786 | { | |
4787 | struct ipr_ioa_cfg *ioa_cfg; | |
4788 | struct ipr_resource_entry *res; | |
4789 | struct ipr_ioarcb *ioarcb; | |
4790 | struct ipr_cmnd *ipr_cmd; | |
4791 | int rc = 0; | |
4792 | ||
4793 | scsi_cmd->scsi_done = done; | |
4794 | ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; | |
4795 | res = scsi_cmd->device->hostdata; | |
4796 | scsi_cmd->result = (DID_OK << 16); | |
4797 | ||
4798 | /* | |
4799 | * We are currently blocking all devices due to a host reset | |
4800 | * We have told the host to stop giving us new requests, but | |
4801 | * ERP ops don't count. FIXME | |
4802 | */ | |
4803 | if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead)) | |
4804 | return SCSI_MLQUEUE_HOST_BUSY; | |
4805 | ||
4806 | /* | |
4807 | * FIXME - Create scsi_set_host_offline interface | |
4808 | * and the ioa_is_dead check can be removed | |
4809 | */ | |
4810 | if (unlikely(ioa_cfg->ioa_is_dead || !res)) { | |
4811 | memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); | |
4812 | scsi_cmd->result = (DID_NO_CONNECT << 16); | |
4813 | scsi_cmd->scsi_done(scsi_cmd); | |
4814 | return 0; | |
4815 | } | |
4816 | ||
35a39691 BK |
4817 | if (ipr_is_gata(res) && res->sata_port) |
4818 | return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap); | |
4819 | ||
1da177e4 LT |
4820 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
4821 | ioarcb = &ipr_cmd->ioarcb; | |
4822 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
4823 | ||
4824 | memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); | |
4825 | ipr_cmd->scsi_cmd = scsi_cmd; | |
4826 | ioarcb->res_handle = res->cfgte.res_handle; | |
4827 | ipr_cmd->done = ipr_scsi_done; | |
4828 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr)); | |
4829 | ||
4830 | if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { | |
4831 | if (scsi_cmd->underflow == 0) | |
4832 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; | |
4833 | ||
4834 | if (res->needs_sync_complete) { | |
4835 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; | |
4836 | res->needs_sync_complete = 0; | |
4837 | } | |
4838 | ||
4839 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; | |
4840 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; | |
4841 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; | |
4842 | ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd); | |
4843 | } | |
4844 | ||
4845 | if (scsi_cmd->cmnd[0] >= 0xC0 && | |
4846 | (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) | |
4847 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
4848 | ||
1da177e4 LT |
4849 | if (likely(rc == 0)) |
4850 | rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); | |
4851 | ||
4852 | if (likely(rc == 0)) { | |
4853 | mb(); | |
4854 | writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), | |
4855 | ioa_cfg->regs.ioarrin_reg); | |
4856 | } else { | |
4857 | list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4858 | return SCSI_MLQUEUE_HOST_BUSY; | |
4859 | } | |
4860 | ||
4861 | return 0; | |
4862 | } | |
4863 | ||
35a39691 BK |
4864 | /** |
4865 | * ipr_ioctl - IOCTL handler | |
4866 | * @sdev: scsi device struct | |
4867 | * @cmd: IOCTL cmd | |
4868 | * @arg: IOCTL arg | |
4869 | * | |
4870 | * Return value: | |
4871 | * 0 on success / other on failure | |
4872 | **/ | |
bd705f2d | 4873 | static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) |
35a39691 BK |
4874 | { |
4875 | struct ipr_resource_entry *res; | |
4876 | ||
4877 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
4878 | if (res && ipr_is_gata(res)) | |
4879 | return ata_scsi_ioctl(sdev, cmd, arg); | |
4880 | ||
4881 | return -EINVAL; | |
4882 | } | |
4883 | ||
1da177e4 LT |
4884 | /** |
4885 | * ipr_info - Get information about the card/driver | |
4886 | * @scsi_host: scsi host struct | |
4887 | * | |
4888 | * Return value: | |
4889 | * pointer to buffer with description string | |
4890 | **/ | |
4891 | static const char * ipr_ioa_info(struct Scsi_Host *host) | |
4892 | { | |
4893 | static char buffer[512]; | |
4894 | struct ipr_ioa_cfg *ioa_cfg; | |
4895 | unsigned long lock_flags = 0; | |
4896 | ||
4897 | ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; | |
4898 | ||
4899 | spin_lock_irqsave(host->host_lock, lock_flags); | |
4900 | sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type); | |
4901 | spin_unlock_irqrestore(host->host_lock, lock_flags); | |
4902 | ||
4903 | return buffer; | |
4904 | } | |
4905 | ||
4906 | static struct scsi_host_template driver_template = { | |
4907 | .module = THIS_MODULE, | |
4908 | .name = "IPR", | |
4909 | .info = ipr_ioa_info, | |
35a39691 | 4910 | .ioctl = ipr_ioctl, |
1da177e4 LT |
4911 | .queuecommand = ipr_queuecommand, |
4912 | .eh_abort_handler = ipr_eh_abort, | |
4913 | .eh_device_reset_handler = ipr_eh_dev_reset, | |
4914 | .eh_host_reset_handler = ipr_eh_host_reset, | |
4915 | .slave_alloc = ipr_slave_alloc, | |
4916 | .slave_configure = ipr_slave_configure, | |
4917 | .slave_destroy = ipr_slave_destroy, | |
35a39691 BK |
4918 | .target_alloc = ipr_target_alloc, |
4919 | .target_destroy = ipr_target_destroy, | |
1da177e4 LT |
4920 | .change_queue_depth = ipr_change_queue_depth, |
4921 | .change_queue_type = ipr_change_queue_type, | |
4922 | .bios_param = ipr_biosparam, | |
4923 | .can_queue = IPR_MAX_COMMANDS, | |
4924 | .this_id = -1, | |
4925 | .sg_tablesize = IPR_MAX_SGLIST, | |
4926 | .max_sectors = IPR_IOA_MAX_SECTORS, | |
4927 | .cmd_per_lun = IPR_MAX_CMD_PER_LUN, | |
4928 | .use_clustering = ENABLE_CLUSTERING, | |
4929 | .shost_attrs = ipr_ioa_attrs, | |
4930 | .sdev_attrs = ipr_dev_attrs, | |
4931 | .proc_name = IPR_NAME | |
4932 | }; | |
4933 | ||
35a39691 BK |
4934 | /** |
4935 | * ipr_ata_phy_reset - libata phy_reset handler | |
4936 | * @ap: ata port to reset | |
4937 | * | |
4938 | **/ | |
4939 | static void ipr_ata_phy_reset(struct ata_port *ap) | |
4940 | { | |
4941 | unsigned long flags; | |
4942 | struct ipr_sata_port *sata_port = ap->private_data; | |
4943 | struct ipr_resource_entry *res = sata_port->res; | |
4944 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; | |
4945 | int rc; | |
4946 | ||
4947 | ENTER; | |
4948 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
4949 | while(ioa_cfg->in_reset_reload) { | |
4950 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
4951 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
4952 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
4953 | } | |
4954 | ||
4955 | if (!ioa_cfg->allow_cmds) | |
4956 | goto out_unlock; | |
4957 | ||
4958 | rc = ipr_device_reset(ioa_cfg, res); | |
4959 | ||
4960 | if (rc) { | |
4961 | ap->ops->port_disable(ap); | |
4962 | goto out_unlock; | |
4963 | } | |
4964 | ||
4965 | switch(res->cfgte.proto) { | |
4966 | case IPR_PROTO_SATA: | |
4967 | case IPR_PROTO_SAS_STP: | |
4968 | ap->device[0].class = ATA_DEV_ATA; | |
4969 | break; | |
4970 | case IPR_PROTO_SATA_ATAPI: | |
4971 | case IPR_PROTO_SAS_STP_ATAPI: | |
4972 | ap->device[0].class = ATA_DEV_ATAPI; | |
4973 | break; | |
4974 | default: | |
4975 | ap->device[0].class = ATA_DEV_UNKNOWN; | |
4976 | ap->ops->port_disable(ap); | |
4977 | break; | |
4978 | }; | |
4979 | ||
4980 | out_unlock: | |
4981 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
4982 | LEAVE; | |
4983 | } | |
4984 | ||
4985 | /** | |
4986 | * ipr_ata_post_internal - Cleanup after an internal command | |
4987 | * @qc: ATA queued command | |
4988 | * | |
4989 | * Return value: | |
4990 | * none | |
4991 | **/ | |
4992 | static void ipr_ata_post_internal(struct ata_queued_cmd *qc) | |
4993 | { | |
4994 | struct ipr_sata_port *sata_port = qc->ap->private_data; | |
4995 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; | |
4996 | struct ipr_cmnd *ipr_cmd; | |
4997 | unsigned long flags; | |
4998 | ||
4999 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
73d98ff0 BK |
5000 | while(ioa_cfg->in_reset_reload) { |
5001 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
5002 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
5003 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
5004 | } | |
5005 | ||
35a39691 BK |
5006 | list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { |
5007 | if (ipr_cmd->qc == qc) { | |
5008 | ipr_device_reset(ioa_cfg, sata_port->res); | |
5009 | break; | |
5010 | } | |
5011 | } | |
5012 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
5013 | } | |
5014 | ||
5015 | /** | |
5016 | * ipr_tf_read - Read the current ATA taskfile for the ATA port | |
5017 | * @ap: ATA port | |
5018 | * @tf: destination ATA taskfile | |
5019 | * | |
5020 | * Return value: | |
5021 | * none | |
5022 | **/ | |
5023 | static void ipr_tf_read(struct ata_port *ap, struct ata_taskfile *tf) | |
5024 | { | |
5025 | struct ipr_sata_port *sata_port = ap->private_data; | |
5026 | struct ipr_ioasa_gata *g = &sata_port->ioasa; | |
5027 | ||
5028 | tf->feature = g->error; | |
5029 | tf->nsect = g->nsect; | |
5030 | tf->lbal = g->lbal; | |
5031 | tf->lbam = g->lbam; | |
5032 | tf->lbah = g->lbah; | |
5033 | tf->device = g->device; | |
5034 | tf->command = g->status; | |
5035 | tf->hob_nsect = g->hob_nsect; | |
5036 | tf->hob_lbal = g->hob_lbal; | |
5037 | tf->hob_lbam = g->hob_lbam; | |
5038 | tf->hob_lbah = g->hob_lbah; | |
5039 | tf->ctl = g->alt_status; | |
5040 | } | |
5041 | ||
5042 | /** | |
5043 | * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure | |
5044 | * @regs: destination | |
5045 | * @tf: source ATA taskfile | |
5046 | * | |
5047 | * Return value: | |
5048 | * none | |
5049 | **/ | |
5050 | static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs, | |
5051 | struct ata_taskfile *tf) | |
5052 | { | |
5053 | regs->feature = tf->feature; | |
5054 | regs->nsect = tf->nsect; | |
5055 | regs->lbal = tf->lbal; | |
5056 | regs->lbam = tf->lbam; | |
5057 | regs->lbah = tf->lbah; | |
5058 | regs->device = tf->device; | |
5059 | regs->command = tf->command; | |
5060 | regs->hob_feature = tf->hob_feature; | |
5061 | regs->hob_nsect = tf->hob_nsect; | |
5062 | regs->hob_lbal = tf->hob_lbal; | |
5063 | regs->hob_lbam = tf->hob_lbam; | |
5064 | regs->hob_lbah = tf->hob_lbah; | |
5065 | regs->ctl = tf->ctl; | |
5066 | } | |
5067 | ||
5068 | /** | |
5069 | * ipr_sata_done - done function for SATA commands | |
5070 | * @ipr_cmd: ipr command struct | |
5071 | * | |
5072 | * This function is invoked by the interrupt handler for | |
5073 | * ops generated by the SCSI mid-layer to SATA devices | |
5074 | * | |
5075 | * Return value: | |
5076 | * none | |
5077 | **/ | |
5078 | static void ipr_sata_done(struct ipr_cmnd *ipr_cmd) | |
5079 | { | |
5080 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5081 | struct ata_queued_cmd *qc = ipr_cmd->qc; | |
5082 | struct ipr_sata_port *sata_port = qc->ap->private_data; | |
5083 | struct ipr_resource_entry *res = sata_port->res; | |
5084 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
5085 | ||
5086 | memcpy(&sata_port->ioasa, &ipr_cmd->ioasa.u.gata, | |
5087 | sizeof(struct ipr_ioasa_gata)); | |
5088 | ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); | |
5089 | ||
5090 | if (be32_to_cpu(ipr_cmd->ioasa.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET) | |
5091 | scsi_report_device_reset(ioa_cfg->host, res->cfgte.res_addr.bus, | |
5092 | res->cfgte.res_addr.target); | |
5093 | ||
5094 | if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) | |
5095 | qc->err_mask |= __ac_err_mask(ipr_cmd->ioasa.u.gata.status); | |
5096 | else | |
5097 | qc->err_mask |= ac_err_mask(ipr_cmd->ioasa.u.gata.status); | |
5098 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
5099 | ata_qc_complete(qc); | |
5100 | } | |
5101 | ||
5102 | /** | |
5103 | * ipr_build_ata_ioadl - Build an ATA scatter/gather list | |
5104 | * @ipr_cmd: ipr command struct | |
5105 | * @qc: ATA queued command | |
5106 | * | |
5107 | **/ | |
5108 | static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd, | |
5109 | struct ata_queued_cmd *qc) | |
5110 | { | |
5111 | u32 ioadl_flags = 0; | |
5112 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
5113 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
5114 | int len = qc->nbytes + qc->pad_len; | |
5115 | struct scatterlist *sg; | |
5116 | ||
5117 | if (len == 0) | |
5118 | return; | |
5119 | ||
5120 | if (qc->dma_dir == DMA_TO_DEVICE) { | |
5121 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; | |
5122 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
5123 | ioarcb->write_data_transfer_length = cpu_to_be32(len); | |
5124 | ioarcb->write_ioadl_len = | |
5125 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
5126 | } else if (qc->dma_dir == DMA_FROM_DEVICE) { | |
5127 | ioadl_flags = IPR_IOADL_FLAGS_READ; | |
5128 | ioarcb->read_data_transfer_length = cpu_to_be32(len); | |
5129 | ioarcb->read_ioadl_len = | |
5130 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
5131 | } | |
5132 | ||
5133 | ata_for_each_sg(sg, qc) { | |
5134 | ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg)); | |
5135 | ioadl->address = cpu_to_be32(sg_dma_address(sg)); | |
5136 | if (ata_sg_is_last(sg, qc)) | |
5137 | ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); | |
5138 | else | |
5139 | ioadl++; | |
5140 | } | |
5141 | } | |
5142 | ||
5143 | /** | |
5144 | * ipr_qc_issue - Issue a SATA qc to a device | |
5145 | * @qc: queued command | |
5146 | * | |
5147 | * Return value: | |
5148 | * 0 if success | |
5149 | **/ | |
5150 | static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc) | |
5151 | { | |
5152 | struct ata_port *ap = qc->ap; | |
5153 | struct ipr_sata_port *sata_port = ap->private_data; | |
5154 | struct ipr_resource_entry *res = sata_port->res; | |
5155 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; | |
5156 | struct ipr_cmnd *ipr_cmd; | |
5157 | struct ipr_ioarcb *ioarcb; | |
5158 | struct ipr_ioarcb_ata_regs *regs; | |
5159 | ||
5160 | if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead)) | |
0feeed82 | 5161 | return AC_ERR_SYSTEM; |
35a39691 BK |
5162 | |
5163 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
5164 | ioarcb = &ipr_cmd->ioarcb; | |
5165 | regs = &ioarcb->add_data.u.regs; | |
5166 | ||
5167 | memset(&ioarcb->add_data, 0, sizeof(ioarcb->add_data)); | |
5168 | ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(ioarcb->add_data.u.regs)); | |
5169 | ||
5170 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
5171 | ipr_cmd->qc = qc; | |
5172 | ipr_cmd->done = ipr_sata_done; | |
5173 | ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle; | |
5174 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU; | |
5175 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; | |
5176 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; | |
5177 | ipr_cmd->dma_use_sg = qc->pad_len ? qc->n_elem + 1 : qc->n_elem; | |
5178 | ||
5179 | ipr_build_ata_ioadl(ipr_cmd, qc); | |
5180 | regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; | |
5181 | ipr_copy_sata_tf(regs, &qc->tf); | |
5182 | memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN); | |
5183 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr)); | |
5184 | ||
5185 | switch (qc->tf.protocol) { | |
5186 | case ATA_PROT_NODATA: | |
5187 | case ATA_PROT_PIO: | |
5188 | break; | |
5189 | ||
5190 | case ATA_PROT_DMA: | |
5191 | regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; | |
5192 | break; | |
5193 | ||
5194 | case ATA_PROT_ATAPI: | |
5195 | case ATA_PROT_ATAPI_NODATA: | |
5196 | regs->flags |= IPR_ATA_FLAG_PACKET_CMD; | |
5197 | break; | |
5198 | ||
5199 | case ATA_PROT_ATAPI_DMA: | |
5200 | regs->flags |= IPR_ATA_FLAG_PACKET_CMD; | |
5201 | regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; | |
5202 | break; | |
5203 | ||
5204 | default: | |
5205 | WARN_ON(1); | |
0feeed82 | 5206 | return AC_ERR_INVALID; |
35a39691 BK |
5207 | } |
5208 | ||
5209 | mb(); | |
5210 | writel(be32_to_cpu(ioarcb->ioarcb_host_pci_addr), | |
5211 | ioa_cfg->regs.ioarrin_reg); | |
5212 | return 0; | |
5213 | } | |
5214 | ||
5215 | /** | |
5216 | * ipr_ata_check_status - Return last ATA status | |
5217 | * @ap: ATA port | |
5218 | * | |
5219 | * Return value: | |
5220 | * ATA status | |
5221 | **/ | |
5222 | static u8 ipr_ata_check_status(struct ata_port *ap) | |
5223 | { | |
5224 | struct ipr_sata_port *sata_port = ap->private_data; | |
5225 | return sata_port->ioasa.status; | |
5226 | } | |
5227 | ||
5228 | /** | |
5229 | * ipr_ata_check_altstatus - Return last ATA altstatus | |
5230 | * @ap: ATA port | |
5231 | * | |
5232 | * Return value: | |
5233 | * Alt ATA status | |
5234 | **/ | |
5235 | static u8 ipr_ata_check_altstatus(struct ata_port *ap) | |
5236 | { | |
5237 | struct ipr_sata_port *sata_port = ap->private_data; | |
5238 | return sata_port->ioasa.alt_status; | |
5239 | } | |
5240 | ||
5241 | static struct ata_port_operations ipr_sata_ops = { | |
5242 | .port_disable = ata_port_disable, | |
5243 | .check_status = ipr_ata_check_status, | |
5244 | .check_altstatus = ipr_ata_check_altstatus, | |
5245 | .dev_select = ata_noop_dev_select, | |
5246 | .phy_reset = ipr_ata_phy_reset, | |
5247 | .post_internal_cmd = ipr_ata_post_internal, | |
5248 | .tf_read = ipr_tf_read, | |
5249 | .qc_prep = ata_noop_qc_prep, | |
5250 | .qc_issue = ipr_qc_issue, | |
5251 | .port_start = ata_sas_port_start, | |
5252 | .port_stop = ata_sas_port_stop | |
5253 | }; | |
5254 | ||
5255 | static struct ata_port_info sata_port_info = { | |
5256 | .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET | | |
5257 | ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA, | |
5258 | .pio_mask = 0x10, /* pio4 */ | |
5259 | .mwdma_mask = 0x07, | |
5260 | .udma_mask = 0x7f, /* udma0-6 */ | |
5261 | .port_ops = &ipr_sata_ops | |
5262 | }; | |
5263 | ||
1da177e4 LT |
5264 | #ifdef CONFIG_PPC_PSERIES |
5265 | static const u16 ipr_blocked_processors[] = { | |
5266 | PV_NORTHSTAR, | |
5267 | PV_PULSAR, | |
5268 | PV_POWER4, | |
5269 | PV_ICESTAR, | |
5270 | PV_SSTAR, | |
5271 | PV_POWER4p, | |
5272 | PV_630, | |
5273 | PV_630p | |
5274 | }; | |
5275 | ||
5276 | /** | |
5277 | * ipr_invalid_adapter - Determine if this adapter is supported on this hardware | |
5278 | * @ioa_cfg: ioa cfg struct | |
5279 | * | |
5280 | * Adapters that use Gemstone revision < 3.1 do not work reliably on | |
5281 | * certain pSeries hardware. This function determines if the given | |
5282 | * adapter is in one of these confgurations or not. | |
5283 | * | |
5284 | * Return value: | |
5285 | * 1 if adapter is not supported / 0 if adapter is supported | |
5286 | **/ | |
5287 | static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) | |
5288 | { | |
5289 | u8 rev_id; | |
5290 | int i; | |
5291 | ||
5292 | if (ioa_cfg->type == 0x5702) { | |
5293 | if (pci_read_config_byte(ioa_cfg->pdev, PCI_REVISION_ID, | |
5294 | &rev_id) == PCIBIOS_SUCCESSFUL) { | |
5295 | if (rev_id < 4) { | |
5296 | for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){ | |
5297 | if (__is_processor(ipr_blocked_processors[i])) | |
5298 | return 1; | |
5299 | } | |
5300 | } | |
5301 | } | |
5302 | } | |
5303 | return 0; | |
5304 | } | |
5305 | #else | |
5306 | #define ipr_invalid_adapter(ioa_cfg) 0 | |
5307 | #endif | |
5308 | ||
5309 | /** | |
5310 | * ipr_ioa_bringdown_done - IOA bring down completion. | |
5311 | * @ipr_cmd: ipr command struct | |
5312 | * | |
5313 | * This function processes the completion of an adapter bring down. | |
5314 | * It wakes any reset sleepers. | |
5315 | * | |
5316 | * Return value: | |
5317 | * IPR_RC_JOB_RETURN | |
5318 | **/ | |
5319 | static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) | |
5320 | { | |
5321 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5322 | ||
5323 | ENTER; | |
5324 | ioa_cfg->in_reset_reload = 0; | |
5325 | ioa_cfg->reset_retries = 0; | |
5326 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
5327 | wake_up_all(&ioa_cfg->reset_wait_q); | |
5328 | ||
5329 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
5330 | scsi_unblock_requests(ioa_cfg->host); | |
5331 | spin_lock_irq(ioa_cfg->host->host_lock); | |
5332 | LEAVE; | |
5333 | ||
5334 | return IPR_RC_JOB_RETURN; | |
5335 | } | |
5336 | ||
5337 | /** | |
5338 | * ipr_ioa_reset_done - IOA reset completion. | |
5339 | * @ipr_cmd: ipr command struct | |
5340 | * | |
5341 | * This function processes the completion of an adapter reset. | |
5342 | * It schedules any necessary mid-layer add/removes and | |
5343 | * wakes any reset sleepers. | |
5344 | * | |
5345 | * Return value: | |
5346 | * IPR_RC_JOB_RETURN | |
5347 | **/ | |
5348 | static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) | |
5349 | { | |
5350 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5351 | struct ipr_resource_entry *res; | |
5352 | struct ipr_hostrcb *hostrcb, *temp; | |
5353 | int i = 0; | |
5354 | ||
5355 | ENTER; | |
5356 | ioa_cfg->in_reset_reload = 0; | |
5357 | ioa_cfg->allow_cmds = 1; | |
5358 | ioa_cfg->reset_cmd = NULL; | |
3d1d0da6 | 5359 | ioa_cfg->doorbell |= IPR_RUNTIME_RESET; |
1da177e4 LT |
5360 | |
5361 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
5362 | if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) { | |
5363 | ipr_trace; | |
5364 | break; | |
5365 | } | |
5366 | } | |
5367 | schedule_work(&ioa_cfg->work_q); | |
5368 | ||
5369 | list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) { | |
5370 | list_del(&hostrcb->queue); | |
5371 | if (i++ < IPR_NUM_LOG_HCAMS) | |
5372 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); | |
5373 | else | |
5374 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); | |
5375 | } | |
5376 | ||
6bb04170 | 5377 | scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS); |
1da177e4 LT |
5378 | dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n"); |
5379 | ||
5380 | ioa_cfg->reset_retries = 0; | |
5381 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
5382 | wake_up_all(&ioa_cfg->reset_wait_q); | |
5383 | ||
5384 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
5385 | scsi_unblock_requests(ioa_cfg->host); | |
5386 | spin_lock_irq(ioa_cfg->host->host_lock); | |
5387 | ||
5388 | if (!ioa_cfg->allow_cmds) | |
5389 | scsi_block_requests(ioa_cfg->host); | |
5390 | ||
5391 | LEAVE; | |
5392 | return IPR_RC_JOB_RETURN; | |
5393 | } | |
5394 | ||
5395 | /** | |
5396 | * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer | |
5397 | * @supported_dev: supported device struct | |
5398 | * @vpids: vendor product id struct | |
5399 | * | |
5400 | * Return value: | |
5401 | * none | |
5402 | **/ | |
5403 | static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, | |
5404 | struct ipr_std_inq_vpids *vpids) | |
5405 | { | |
5406 | memset(supported_dev, 0, sizeof(struct ipr_supported_device)); | |
5407 | memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); | |
5408 | supported_dev->num_records = 1; | |
5409 | supported_dev->data_length = | |
5410 | cpu_to_be16(sizeof(struct ipr_supported_device)); | |
5411 | supported_dev->reserved = 0; | |
5412 | } | |
5413 | ||
5414 | /** | |
5415 | * ipr_set_supported_devs - Send Set Supported Devices for a device | |
5416 | * @ipr_cmd: ipr command struct | |
5417 | * | |
5418 | * This function send a Set Supported Devices to the adapter | |
5419 | * | |
5420 | * Return value: | |
5421 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5422 | **/ | |
5423 | static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) | |
5424 | { | |
5425 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5426 | struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; | |
5427 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
5428 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
5429 | struct ipr_resource_entry *res = ipr_cmd->u.res; | |
5430 | ||
5431 | ipr_cmd->job_step = ipr_ioa_reset_done; | |
5432 | ||
5433 | list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { | |
e4fbf44e | 5434 | if (!ipr_is_scsi_disk(res)) |
1da177e4 LT |
5435 | continue; |
5436 | ||
5437 | ipr_cmd->u.res = res; | |
5438 | ipr_set_sup_dev_dflt(supp_dev, &res->cfgte.std_inq_data.vpids); | |
5439 | ||
5440 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
5441 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
5442 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
5443 | ||
5444 | ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; | |
5445 | ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; | |
5446 | ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; | |
5447 | ||
5448 | ioadl->flags_and_data_len = cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | | |
5449 | sizeof(struct ipr_supported_device)); | |
5450 | ioadl->address = cpu_to_be32(ioa_cfg->vpd_cbs_dma + | |
5451 | offsetof(struct ipr_misc_cbs, supp_dev)); | |
5452 | ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
5453 | ioarcb->write_data_transfer_length = | |
5454 | cpu_to_be32(sizeof(struct ipr_supported_device)); | |
5455 | ||
5456 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, | |
5457 | IPR_SET_SUP_DEVICE_TIMEOUT); | |
5458 | ||
5459 | ipr_cmd->job_step = ipr_set_supported_devs; | |
5460 | return IPR_RC_JOB_RETURN; | |
5461 | } | |
5462 | ||
5463 | return IPR_RC_JOB_CONTINUE; | |
5464 | } | |
5465 | ||
62275040 | 5466 | /** |
5467 | * ipr_setup_write_cache - Disable write cache if needed | |
5468 | * @ipr_cmd: ipr command struct | |
5469 | * | |
5470 | * This function sets up adapters write cache to desired setting | |
5471 | * | |
5472 | * Return value: | |
5473 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5474 | **/ | |
5475 | static int ipr_setup_write_cache(struct ipr_cmnd *ipr_cmd) | |
5476 | { | |
5477 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5478 | ||
5479 | ipr_cmd->job_step = ipr_set_supported_devs; | |
5480 | ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, | |
5481 | struct ipr_resource_entry, queue); | |
5482 | ||
5483 | if (ioa_cfg->cache_state != CACHE_DISABLED) | |
5484 | return IPR_RC_JOB_CONTINUE; | |
5485 | ||
5486 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
5487 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
5488 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; | |
5489 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; | |
5490 | ||
5491 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
5492 | ||
5493 | return IPR_RC_JOB_RETURN; | |
5494 | } | |
5495 | ||
1da177e4 LT |
5496 | /** |
5497 | * ipr_get_mode_page - Locate specified mode page | |
5498 | * @mode_pages: mode page buffer | |
5499 | * @page_code: page code to find | |
5500 | * @len: minimum required length for mode page | |
5501 | * | |
5502 | * Return value: | |
5503 | * pointer to mode page / NULL on failure | |
5504 | **/ | |
5505 | static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, | |
5506 | u32 page_code, u32 len) | |
5507 | { | |
5508 | struct ipr_mode_page_hdr *mode_hdr; | |
5509 | u32 page_length; | |
5510 | u32 length; | |
5511 | ||
5512 | if (!mode_pages || (mode_pages->hdr.length == 0)) | |
5513 | return NULL; | |
5514 | ||
5515 | length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; | |
5516 | mode_hdr = (struct ipr_mode_page_hdr *) | |
5517 | (mode_pages->data + mode_pages->hdr.block_desc_len); | |
5518 | ||
5519 | while (length) { | |
5520 | if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { | |
5521 | if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) | |
5522 | return mode_hdr; | |
5523 | break; | |
5524 | } else { | |
5525 | page_length = (sizeof(struct ipr_mode_page_hdr) + | |
5526 | mode_hdr->page_length); | |
5527 | length -= page_length; | |
5528 | mode_hdr = (struct ipr_mode_page_hdr *) | |
5529 | ((unsigned long)mode_hdr + page_length); | |
5530 | } | |
5531 | } | |
5532 | return NULL; | |
5533 | } | |
5534 | ||
5535 | /** | |
5536 | * ipr_check_term_power - Check for term power errors | |
5537 | * @ioa_cfg: ioa config struct | |
5538 | * @mode_pages: IOAFP mode pages buffer | |
5539 | * | |
5540 | * Check the IOAFP's mode page 28 for term power errors | |
5541 | * | |
5542 | * Return value: | |
5543 | * nothing | |
5544 | **/ | |
5545 | static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, | |
5546 | struct ipr_mode_pages *mode_pages) | |
5547 | { | |
5548 | int i; | |
5549 | int entry_length; | |
5550 | struct ipr_dev_bus_entry *bus; | |
5551 | struct ipr_mode_page28 *mode_page; | |
5552 | ||
5553 | mode_page = ipr_get_mode_page(mode_pages, 0x28, | |
5554 | sizeof(struct ipr_mode_page28)); | |
5555 | ||
5556 | entry_length = mode_page->entry_length; | |
5557 | ||
5558 | bus = mode_page->bus; | |
5559 | ||
5560 | for (i = 0; i < mode_page->num_entries; i++) { | |
5561 | if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { | |
5562 | dev_err(&ioa_cfg->pdev->dev, | |
5563 | "Term power is absent on scsi bus %d\n", | |
5564 | bus->res_addr.bus); | |
5565 | } | |
5566 | ||
5567 | bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); | |
5568 | } | |
5569 | } | |
5570 | ||
5571 | /** | |
5572 | * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table | |
5573 | * @ioa_cfg: ioa config struct | |
5574 | * | |
5575 | * Looks through the config table checking for SES devices. If | |
5576 | * the SES device is in the SES table indicating a maximum SCSI | |
5577 | * bus speed, the speed is limited for the bus. | |
5578 | * | |
5579 | * Return value: | |
5580 | * none | |
5581 | **/ | |
5582 | static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) | |
5583 | { | |
5584 | u32 max_xfer_rate; | |
5585 | int i; | |
5586 | ||
5587 | for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { | |
5588 | max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i, | |
5589 | ioa_cfg->bus_attr[i].bus_width); | |
5590 | ||
5591 | if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) | |
5592 | ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; | |
5593 | } | |
5594 | } | |
5595 | ||
5596 | /** | |
5597 | * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 | |
5598 | * @ioa_cfg: ioa config struct | |
5599 | * @mode_pages: mode page 28 buffer | |
5600 | * | |
5601 | * Updates mode page 28 based on driver configuration | |
5602 | * | |
5603 | * Return value: | |
5604 | * none | |
5605 | **/ | |
5606 | static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, | |
5607 | struct ipr_mode_pages *mode_pages) | |
5608 | { | |
5609 | int i, entry_length; | |
5610 | struct ipr_dev_bus_entry *bus; | |
5611 | struct ipr_bus_attributes *bus_attr; | |
5612 | struct ipr_mode_page28 *mode_page; | |
5613 | ||
5614 | mode_page = ipr_get_mode_page(mode_pages, 0x28, | |
5615 | sizeof(struct ipr_mode_page28)); | |
5616 | ||
5617 | entry_length = mode_page->entry_length; | |
5618 | ||
5619 | /* Loop for each device bus entry */ | |
5620 | for (i = 0, bus = mode_page->bus; | |
5621 | i < mode_page->num_entries; | |
5622 | i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { | |
5623 | if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { | |
5624 | dev_err(&ioa_cfg->pdev->dev, | |
5625 | "Invalid resource address reported: 0x%08X\n", | |
5626 | IPR_GET_PHYS_LOC(bus->res_addr)); | |
5627 | continue; | |
5628 | } | |
5629 | ||
5630 | bus_attr = &ioa_cfg->bus_attr[i]; | |
5631 | bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; | |
5632 | bus->bus_width = bus_attr->bus_width; | |
5633 | bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); | |
5634 | bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; | |
5635 | if (bus_attr->qas_enabled) | |
5636 | bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; | |
5637 | else | |
5638 | bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; | |
5639 | } | |
5640 | } | |
5641 | ||
5642 | /** | |
5643 | * ipr_build_mode_select - Build a mode select command | |
5644 | * @ipr_cmd: ipr command struct | |
5645 | * @res_handle: resource handle to send command to | |
5646 | * @parm: Byte 2 of Mode Sense command | |
5647 | * @dma_addr: DMA buffer address | |
5648 | * @xfer_len: data transfer length | |
5649 | * | |
5650 | * Return value: | |
5651 | * none | |
5652 | **/ | |
5653 | static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, | |
5654 | __be32 res_handle, u8 parm, u32 dma_addr, | |
5655 | u8 xfer_len) | |
5656 | { | |
5657 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
5658 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
5659 | ||
5660 | ioarcb->res_handle = res_handle; | |
5661 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
5662 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
5663 | ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; | |
5664 | ioarcb->cmd_pkt.cdb[1] = parm; | |
5665 | ioarcb->cmd_pkt.cdb[4] = xfer_len; | |
5666 | ||
5667 | ioadl->flags_and_data_len = | |
5668 | cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | xfer_len); | |
5669 | ioadl->address = cpu_to_be32(dma_addr); | |
5670 | ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
5671 | ioarcb->write_data_transfer_length = cpu_to_be32(xfer_len); | |
5672 | } | |
5673 | ||
5674 | /** | |
5675 | * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA | |
5676 | * @ipr_cmd: ipr command struct | |
5677 | * | |
5678 | * This function sets up the SCSI bus attributes and sends | |
5679 | * a Mode Select for Page 28 to activate them. | |
5680 | * | |
5681 | * Return value: | |
5682 | * IPR_RC_JOB_RETURN | |
5683 | **/ | |
5684 | static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) | |
5685 | { | |
5686 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5687 | struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; | |
5688 | int length; | |
5689 | ||
5690 | ENTER; | |
4733804c BK |
5691 | ipr_scsi_bus_speed_limit(ioa_cfg); |
5692 | ipr_check_term_power(ioa_cfg, mode_pages); | |
5693 | ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); | |
5694 | length = mode_pages->hdr.length + 1; | |
5695 | mode_pages->hdr.length = 0; | |
1da177e4 LT |
5696 | |
5697 | ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, | |
5698 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), | |
5699 | length); | |
5700 | ||
62275040 | 5701 | ipr_cmd->job_step = ipr_setup_write_cache; |
1da177e4 LT |
5702 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); |
5703 | ||
5704 | LEAVE; | |
5705 | return IPR_RC_JOB_RETURN; | |
5706 | } | |
5707 | ||
5708 | /** | |
5709 | * ipr_build_mode_sense - Builds a mode sense command | |
5710 | * @ipr_cmd: ipr command struct | |
5711 | * @res: resource entry struct | |
5712 | * @parm: Byte 2 of mode sense command | |
5713 | * @dma_addr: DMA address of mode sense buffer | |
5714 | * @xfer_len: Size of DMA buffer | |
5715 | * | |
5716 | * Return value: | |
5717 | * none | |
5718 | **/ | |
5719 | static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, | |
5720 | __be32 res_handle, | |
5721 | u8 parm, u32 dma_addr, u8 xfer_len) | |
5722 | { | |
5723 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
5724 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
5725 | ||
5726 | ioarcb->res_handle = res_handle; | |
5727 | ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; | |
5728 | ioarcb->cmd_pkt.cdb[2] = parm; | |
5729 | ioarcb->cmd_pkt.cdb[4] = xfer_len; | |
5730 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
5731 | ||
5732 | ioadl->flags_and_data_len = | |
5733 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len); | |
5734 | ioadl->address = cpu_to_be32(dma_addr); | |
5735 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
5736 | ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len); | |
5737 | } | |
5738 | ||
dfed823e | 5739 | /** |
5740 | * ipr_reset_cmd_failed - Handle failure of IOA reset command | |
5741 | * @ipr_cmd: ipr command struct | |
5742 | * | |
5743 | * This function handles the failure of an IOA bringup command. | |
5744 | * | |
5745 | * Return value: | |
5746 | * IPR_RC_JOB_RETURN | |
5747 | **/ | |
5748 | static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) | |
5749 | { | |
5750 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5751 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
5752 | ||
5753 | dev_err(&ioa_cfg->pdev->dev, | |
5754 | "0x%02X failed with IOASC: 0x%08X\n", | |
5755 | ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); | |
5756 | ||
5757 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
5758 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
5759 | return IPR_RC_JOB_RETURN; | |
5760 | } | |
5761 | ||
5762 | /** | |
5763 | * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense | |
5764 | * @ipr_cmd: ipr command struct | |
5765 | * | |
5766 | * This function handles the failure of a Mode Sense to the IOAFP. | |
5767 | * Some adapters do not handle all mode pages. | |
5768 | * | |
5769 | * Return value: | |
5770 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5771 | **/ | |
5772 | static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) | |
5773 | { | |
5774 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
5775 | ||
5776 | if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { | |
5777 | ipr_cmd->job_step = ipr_setup_write_cache; | |
5778 | return IPR_RC_JOB_CONTINUE; | |
5779 | } | |
5780 | ||
5781 | return ipr_reset_cmd_failed(ipr_cmd); | |
5782 | } | |
5783 | ||
1da177e4 LT |
5784 | /** |
5785 | * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA | |
5786 | * @ipr_cmd: ipr command struct | |
5787 | * | |
5788 | * This function send a Page 28 mode sense to the IOA to | |
5789 | * retrieve SCSI bus attributes. | |
5790 | * | |
5791 | * Return value: | |
5792 | * IPR_RC_JOB_RETURN | |
5793 | **/ | |
5794 | static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) | |
5795 | { | |
5796 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5797 | ||
5798 | ENTER; | |
5799 | ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), | |
5800 | 0x28, ioa_cfg->vpd_cbs_dma + | |
5801 | offsetof(struct ipr_misc_cbs, mode_pages), | |
5802 | sizeof(struct ipr_mode_pages)); | |
5803 | ||
5804 | ipr_cmd->job_step = ipr_ioafp_mode_select_page28; | |
dfed823e | 5805 | ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; |
1da177e4 LT |
5806 | |
5807 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
5808 | ||
5809 | LEAVE; | |
5810 | return IPR_RC_JOB_RETURN; | |
5811 | } | |
5812 | ||
5813 | /** | |
5814 | * ipr_init_res_table - Initialize the resource table | |
5815 | * @ipr_cmd: ipr command struct | |
5816 | * | |
5817 | * This function looks through the existing resource table, comparing | |
5818 | * it with the config table. This function will take care of old/new | |
5819 | * devices and schedule adding/removing them from the mid-layer | |
5820 | * as appropriate. | |
5821 | * | |
5822 | * Return value: | |
5823 | * IPR_RC_JOB_CONTINUE | |
5824 | **/ | |
5825 | static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) | |
5826 | { | |
5827 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5828 | struct ipr_resource_entry *res, *temp; | |
5829 | struct ipr_config_table_entry *cfgte; | |
5830 | int found, i; | |
5831 | LIST_HEAD(old_res); | |
5832 | ||
5833 | ENTER; | |
5834 | if (ioa_cfg->cfg_table->hdr.flags & IPR_UCODE_DOWNLOAD_REQ) | |
5835 | dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n"); | |
5836 | ||
5837 | list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) | |
5838 | list_move_tail(&res->queue, &old_res); | |
5839 | ||
5840 | for (i = 0; i < ioa_cfg->cfg_table->hdr.num_entries; i++) { | |
5841 | cfgte = &ioa_cfg->cfg_table->dev[i]; | |
5842 | found = 0; | |
5843 | ||
5844 | list_for_each_entry_safe(res, temp, &old_res, queue) { | |
5845 | if (!memcmp(&res->cfgte.res_addr, | |
5846 | &cfgte->res_addr, sizeof(cfgte->res_addr))) { | |
5847 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); | |
5848 | found = 1; | |
5849 | break; | |
5850 | } | |
5851 | } | |
5852 | ||
5853 | if (!found) { | |
5854 | if (list_empty(&ioa_cfg->free_res_q)) { | |
5855 | dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n"); | |
5856 | break; | |
5857 | } | |
5858 | ||
5859 | found = 1; | |
5860 | res = list_entry(ioa_cfg->free_res_q.next, | |
5861 | struct ipr_resource_entry, queue); | |
5862 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); | |
5863 | ipr_init_res_entry(res); | |
5864 | res->add_to_ml = 1; | |
5865 | } | |
5866 | ||
5867 | if (found) | |
5868 | memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry)); | |
5869 | } | |
5870 | ||
5871 | list_for_each_entry_safe(res, temp, &old_res, queue) { | |
5872 | if (res->sdev) { | |
5873 | res->del_from_ml = 1; | |
1121b794 | 5874 | res->cfgte.res_handle = IPR_INVALID_RES_HANDLE; |
1da177e4 LT |
5875 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); |
5876 | } else { | |
5877 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); | |
5878 | } | |
5879 | } | |
5880 | ||
5881 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; | |
5882 | ||
5883 | LEAVE; | |
5884 | return IPR_RC_JOB_CONTINUE; | |
5885 | } | |
5886 | ||
5887 | /** | |
5888 | * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. | |
5889 | * @ipr_cmd: ipr command struct | |
5890 | * | |
5891 | * This function sends a Query IOA Configuration command | |
5892 | * to the adapter to retrieve the IOA configuration table. | |
5893 | * | |
5894 | * Return value: | |
5895 | * IPR_RC_JOB_RETURN | |
5896 | **/ | |
5897 | static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) | |
5898 | { | |
5899 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5900 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
5901 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
5902 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; | |
5903 | ||
5904 | ENTER; | |
5905 | dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", | |
5906 | ucode_vpd->major_release, ucode_vpd->card_type, | |
5907 | ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); | |
5908 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
5909 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
5910 | ||
5911 | ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; | |
5912 | ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_config_table) >> 8) & 0xff; | |
5913 | ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_config_table) & 0xff; | |
5914 | ||
5915 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
5916 | ioarcb->read_data_transfer_length = | |
5917 | cpu_to_be32(sizeof(struct ipr_config_table)); | |
5918 | ||
5919 | ioadl->address = cpu_to_be32(ioa_cfg->cfg_table_dma); | |
5920 | ioadl->flags_and_data_len = | |
5921 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(struct ipr_config_table)); | |
5922 | ||
5923 | ipr_cmd->job_step = ipr_init_res_table; | |
5924 | ||
5925 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
5926 | ||
5927 | LEAVE; | |
5928 | return IPR_RC_JOB_RETURN; | |
5929 | } | |
5930 | ||
5931 | /** | |
5932 | * ipr_ioafp_inquiry - Send an Inquiry to the adapter. | |
5933 | * @ipr_cmd: ipr command struct | |
5934 | * | |
5935 | * This utility function sends an inquiry to the adapter. | |
5936 | * | |
5937 | * Return value: | |
5938 | * none | |
5939 | **/ | |
5940 | static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, | |
5941 | u32 dma_addr, u8 xfer_len) | |
5942 | { | |
5943 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
5944 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
5945 | ||
5946 | ENTER; | |
5947 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
5948 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
5949 | ||
5950 | ioarcb->cmd_pkt.cdb[0] = INQUIRY; | |
5951 | ioarcb->cmd_pkt.cdb[1] = flags; | |
5952 | ioarcb->cmd_pkt.cdb[2] = page; | |
5953 | ioarcb->cmd_pkt.cdb[4] = xfer_len; | |
5954 | ||
5955 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
5956 | ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len); | |
5957 | ||
5958 | ioadl->address = cpu_to_be32(dma_addr); | |
5959 | ioadl->flags_and_data_len = | |
5960 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len); | |
5961 | ||
5962 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
5963 | LEAVE; | |
5964 | } | |
5965 | ||
62275040 | 5966 | /** |
5967 | * ipr_inquiry_page_supported - Is the given inquiry page supported | |
5968 | * @page0: inquiry page 0 buffer | |
5969 | * @page: page code. | |
5970 | * | |
5971 | * This function determines if the specified inquiry page is supported. | |
5972 | * | |
5973 | * Return value: | |
5974 | * 1 if page is supported / 0 if not | |
5975 | **/ | |
5976 | static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) | |
5977 | { | |
5978 | int i; | |
5979 | ||
5980 | for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) | |
5981 | if (page0->page[i] == page) | |
5982 | return 1; | |
5983 | ||
5984 | return 0; | |
5985 | } | |
5986 | ||
1da177e4 LT |
5987 | /** |
5988 | * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. | |
5989 | * @ipr_cmd: ipr command struct | |
5990 | * | |
5991 | * This function sends a Page 3 inquiry to the adapter | |
5992 | * to retrieve software VPD information. | |
5993 | * | |
5994 | * Return value: | |
5995 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5996 | **/ | |
5997 | static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) | |
62275040 | 5998 | { |
5999 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6000 | struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; | |
6001 | ||
6002 | ENTER; | |
6003 | ||
6004 | if (!ipr_inquiry_page_supported(page0, 1)) | |
6005 | ioa_cfg->cache_state = CACHE_NONE; | |
6006 | ||
6007 | ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; | |
6008 | ||
6009 | ipr_ioafp_inquiry(ipr_cmd, 1, 3, | |
6010 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), | |
6011 | sizeof(struct ipr_inquiry_page3)); | |
6012 | ||
6013 | LEAVE; | |
6014 | return IPR_RC_JOB_RETURN; | |
6015 | } | |
6016 | ||
6017 | /** | |
6018 | * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. | |
6019 | * @ipr_cmd: ipr command struct | |
6020 | * | |
6021 | * This function sends a Page 0 inquiry to the adapter | |
6022 | * to retrieve supported inquiry pages. | |
6023 | * | |
6024 | * Return value: | |
6025 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
6026 | **/ | |
6027 | static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) | |
1da177e4 LT |
6028 | { |
6029 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6030 | char type[5]; | |
6031 | ||
6032 | ENTER; | |
6033 | ||
6034 | /* Grab the type out of the VPD and store it away */ | |
6035 | memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); | |
6036 | type[4] = '\0'; | |
6037 | ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); | |
6038 | ||
62275040 | 6039 | ipr_cmd->job_step = ipr_ioafp_page3_inquiry; |
1da177e4 | 6040 | |
62275040 | 6041 | ipr_ioafp_inquiry(ipr_cmd, 1, 0, |
6042 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), | |
6043 | sizeof(struct ipr_inquiry_page0)); | |
1da177e4 LT |
6044 | |
6045 | LEAVE; | |
6046 | return IPR_RC_JOB_RETURN; | |
6047 | } | |
6048 | ||
6049 | /** | |
6050 | * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. | |
6051 | * @ipr_cmd: ipr command struct | |
6052 | * | |
6053 | * This function sends a standard inquiry to the adapter. | |
6054 | * | |
6055 | * Return value: | |
6056 | * IPR_RC_JOB_RETURN | |
6057 | **/ | |
6058 | static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) | |
6059 | { | |
6060 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6061 | ||
6062 | ENTER; | |
62275040 | 6063 | ipr_cmd->job_step = ipr_ioafp_page0_inquiry; |
1da177e4 LT |
6064 | |
6065 | ipr_ioafp_inquiry(ipr_cmd, 0, 0, | |
6066 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), | |
6067 | sizeof(struct ipr_ioa_vpd)); | |
6068 | ||
6069 | LEAVE; | |
6070 | return IPR_RC_JOB_RETURN; | |
6071 | } | |
6072 | ||
6073 | /** | |
6074 | * ipr_ioafp_indentify_hrrq - Send Identify Host RRQ. | |
6075 | * @ipr_cmd: ipr command struct | |
6076 | * | |
6077 | * This function send an Identify Host Request Response Queue | |
6078 | * command to establish the HRRQ with the adapter. | |
6079 | * | |
6080 | * Return value: | |
6081 | * IPR_RC_JOB_RETURN | |
6082 | **/ | |
6083 | static int ipr_ioafp_indentify_hrrq(struct ipr_cmnd *ipr_cmd) | |
6084 | { | |
6085 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6086 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
6087 | ||
6088 | ENTER; | |
6089 | dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n"); | |
6090 | ||
6091 | ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; | |
6092 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
6093 | ||
6094 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
6095 | ioarcb->cmd_pkt.cdb[2] = | |
6096 | ((u32) ioa_cfg->host_rrq_dma >> 24) & 0xff; | |
6097 | ioarcb->cmd_pkt.cdb[3] = | |
6098 | ((u32) ioa_cfg->host_rrq_dma >> 16) & 0xff; | |
6099 | ioarcb->cmd_pkt.cdb[4] = | |
6100 | ((u32) ioa_cfg->host_rrq_dma >> 8) & 0xff; | |
6101 | ioarcb->cmd_pkt.cdb[5] = | |
6102 | ((u32) ioa_cfg->host_rrq_dma) & 0xff; | |
6103 | ioarcb->cmd_pkt.cdb[7] = | |
6104 | ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff; | |
6105 | ioarcb->cmd_pkt.cdb[8] = | |
6106 | (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff; | |
6107 | ||
6108 | ipr_cmd->job_step = ipr_ioafp_std_inquiry; | |
6109 | ||
6110 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
6111 | ||
6112 | LEAVE; | |
6113 | return IPR_RC_JOB_RETURN; | |
6114 | } | |
6115 | ||
6116 | /** | |
6117 | * ipr_reset_timer_done - Adapter reset timer function | |
6118 | * @ipr_cmd: ipr command struct | |
6119 | * | |
6120 | * Description: This function is used in adapter reset processing | |
6121 | * for timing events. If the reset_cmd pointer in the IOA | |
6122 | * config struct is not this adapter's we are doing nested | |
6123 | * resets and fail_all_ops will take care of freeing the | |
6124 | * command block. | |
6125 | * | |
6126 | * Return value: | |
6127 | * none | |
6128 | **/ | |
6129 | static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd) | |
6130 | { | |
6131 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6132 | unsigned long lock_flags = 0; | |
6133 | ||
6134 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
6135 | ||
6136 | if (ioa_cfg->reset_cmd == ipr_cmd) { | |
6137 | list_del(&ipr_cmd->queue); | |
6138 | ipr_cmd->done(ipr_cmd); | |
6139 | } | |
6140 | ||
6141 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
6142 | } | |
6143 | ||
6144 | /** | |
6145 | * ipr_reset_start_timer - Start a timer for adapter reset job | |
6146 | * @ipr_cmd: ipr command struct | |
6147 | * @timeout: timeout value | |
6148 | * | |
6149 | * Description: This function is used in adapter reset processing | |
6150 | * for timing events. If the reset_cmd pointer in the IOA | |
6151 | * config struct is not this adapter's we are doing nested | |
6152 | * resets and fail_all_ops will take care of freeing the | |
6153 | * command block. | |
6154 | * | |
6155 | * Return value: | |
6156 | * none | |
6157 | **/ | |
6158 | static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, | |
6159 | unsigned long timeout) | |
6160 | { | |
6161 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); | |
6162 | ipr_cmd->done = ipr_reset_ioa_job; | |
6163 | ||
6164 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; | |
6165 | ipr_cmd->timer.expires = jiffies + timeout; | |
6166 | ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done; | |
6167 | add_timer(&ipr_cmd->timer); | |
6168 | } | |
6169 | ||
6170 | /** | |
6171 | * ipr_init_ioa_mem - Initialize ioa_cfg control block | |
6172 | * @ioa_cfg: ioa cfg struct | |
6173 | * | |
6174 | * Return value: | |
6175 | * nothing | |
6176 | **/ | |
6177 | static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) | |
6178 | { | |
6179 | memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS); | |
6180 | ||
6181 | /* Initialize Host RRQ pointers */ | |
6182 | ioa_cfg->hrrq_start = ioa_cfg->host_rrq; | |
6183 | ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1]; | |
6184 | ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; | |
6185 | ioa_cfg->toggle_bit = 1; | |
6186 | ||
6187 | /* Zero out config table */ | |
6188 | memset(ioa_cfg->cfg_table, 0, sizeof(struct ipr_config_table)); | |
6189 | } | |
6190 | ||
6191 | /** | |
6192 | * ipr_reset_enable_ioa - Enable the IOA following a reset. | |
6193 | * @ipr_cmd: ipr command struct | |
6194 | * | |
6195 | * This function reinitializes some control blocks and | |
6196 | * enables destructive diagnostics on the adapter. | |
6197 | * | |
6198 | * Return value: | |
6199 | * IPR_RC_JOB_RETURN | |
6200 | **/ | |
6201 | static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) | |
6202 | { | |
6203 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6204 | volatile u32 int_reg; | |
6205 | ||
6206 | ENTER; | |
6207 | ipr_cmd->job_step = ipr_ioafp_indentify_hrrq; | |
6208 | ipr_init_ioa_mem(ioa_cfg); | |
6209 | ||
6210 | ioa_cfg->allow_interrupts = 1; | |
6211 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
6212 | ||
6213 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { | |
6214 | writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), | |
6215 | ioa_cfg->regs.clr_interrupt_mask_reg); | |
6216 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
6217 | return IPR_RC_JOB_CONTINUE; | |
6218 | } | |
6219 | ||
6220 | /* Enable destructive diagnostics on IOA */ | |
3d1d0da6 | 6221 | writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg); |
1da177e4 LT |
6222 | |
6223 | writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg); | |
6224 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
6225 | ||
6226 | dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n"); | |
6227 | ||
6228 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; | |
5469cb5b | 6229 | ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ); |
1da177e4 LT |
6230 | ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; |
6231 | ipr_cmd->done = ipr_reset_ioa_job; | |
6232 | add_timer(&ipr_cmd->timer); | |
6233 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
6234 | ||
6235 | LEAVE; | |
6236 | return IPR_RC_JOB_RETURN; | |
6237 | } | |
6238 | ||
6239 | /** | |
6240 | * ipr_reset_wait_for_dump - Wait for a dump to timeout. | |
6241 | * @ipr_cmd: ipr command struct | |
6242 | * | |
6243 | * This function is invoked when an adapter dump has run out | |
6244 | * of processing time. | |
6245 | * | |
6246 | * Return value: | |
6247 | * IPR_RC_JOB_CONTINUE | |
6248 | **/ | |
6249 | static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) | |
6250 | { | |
6251 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6252 | ||
6253 | if (ioa_cfg->sdt_state == GET_DUMP) | |
6254 | ioa_cfg->sdt_state = ABORT_DUMP; | |
6255 | ||
6256 | ipr_cmd->job_step = ipr_reset_alert; | |
6257 | ||
6258 | return IPR_RC_JOB_CONTINUE; | |
6259 | } | |
6260 | ||
6261 | /** | |
6262 | * ipr_unit_check_no_data - Log a unit check/no data error log | |
6263 | * @ioa_cfg: ioa config struct | |
6264 | * | |
6265 | * Logs an error indicating the adapter unit checked, but for some | |
6266 | * reason, we were unable to fetch the unit check buffer. | |
6267 | * | |
6268 | * Return value: | |
6269 | * nothing | |
6270 | **/ | |
6271 | static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) | |
6272 | { | |
6273 | ioa_cfg->errors_logged++; | |
6274 | dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n"); | |
6275 | } | |
6276 | ||
6277 | /** | |
6278 | * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA | |
6279 | * @ioa_cfg: ioa config struct | |
6280 | * | |
6281 | * Fetches the unit check buffer from the adapter by clocking the data | |
6282 | * through the mailbox register. | |
6283 | * | |
6284 | * Return value: | |
6285 | * nothing | |
6286 | **/ | |
6287 | static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) | |
6288 | { | |
6289 | unsigned long mailbox; | |
6290 | struct ipr_hostrcb *hostrcb; | |
6291 | struct ipr_uc_sdt sdt; | |
6292 | int rc, length; | |
6293 | ||
6294 | mailbox = readl(ioa_cfg->ioa_mailbox); | |
6295 | ||
6296 | if (!ipr_sdt_is_fmt2(mailbox)) { | |
6297 | ipr_unit_check_no_data(ioa_cfg); | |
6298 | return; | |
6299 | } | |
6300 | ||
6301 | memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); | |
6302 | rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt, | |
6303 | (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); | |
6304 | ||
6305 | if (rc || (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE) || | |
6306 | !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY)) { | |
6307 | ipr_unit_check_no_data(ioa_cfg); | |
6308 | return; | |
6309 | } | |
6310 | ||
6311 | /* Find length of the first sdt entry (UC buffer) */ | |
6312 | length = (be32_to_cpu(sdt.entry[0].end_offset) - | |
6313 | be32_to_cpu(sdt.entry[0].bar_str_offset)) & IPR_FMT2_MBX_ADDR_MASK; | |
6314 | ||
6315 | hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, | |
6316 | struct ipr_hostrcb, queue); | |
6317 | list_del(&hostrcb->queue); | |
6318 | memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); | |
6319 | ||
6320 | rc = ipr_get_ldump_data_section(ioa_cfg, | |
6321 | be32_to_cpu(sdt.entry[0].bar_str_offset), | |
6322 | (__be32 *)&hostrcb->hcam, | |
6323 | min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); | |
6324 | ||
6325 | if (!rc) | |
6326 | ipr_handle_log_data(ioa_cfg, hostrcb); | |
6327 | else | |
6328 | ipr_unit_check_no_data(ioa_cfg); | |
6329 | ||
6330 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); | |
6331 | } | |
6332 | ||
6333 | /** | |
6334 | * ipr_reset_restore_cfg_space - Restore PCI config space. | |
6335 | * @ipr_cmd: ipr command struct | |
6336 | * | |
6337 | * Description: This function restores the saved PCI config space of | |
6338 | * the adapter, fails all outstanding ops back to the callers, and | |
6339 | * fetches the dump/unit check if applicable to this reset. | |
6340 | * | |
6341 | * Return value: | |
6342 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
6343 | **/ | |
6344 | static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) | |
6345 | { | |
6346 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6347 | int rc; | |
6348 | ||
6349 | ENTER; | |
6350 | rc = pci_restore_state(ioa_cfg->pdev); | |
6351 | ||
6352 | if (rc != PCIBIOS_SUCCESSFUL) { | |
6353 | ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); | |
6354 | return IPR_RC_JOB_CONTINUE; | |
6355 | } | |
6356 | ||
6357 | if (ipr_set_pcix_cmd_reg(ioa_cfg)) { | |
6358 | ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); | |
6359 | return IPR_RC_JOB_CONTINUE; | |
6360 | } | |
6361 | ||
6362 | ipr_fail_all_ops(ioa_cfg); | |
6363 | ||
6364 | if (ioa_cfg->ioa_unit_checked) { | |
6365 | ioa_cfg->ioa_unit_checked = 0; | |
6366 | ipr_get_unit_check_buffer(ioa_cfg); | |
6367 | ipr_cmd->job_step = ipr_reset_alert; | |
6368 | ipr_reset_start_timer(ipr_cmd, 0); | |
6369 | return IPR_RC_JOB_RETURN; | |
6370 | } | |
6371 | ||
6372 | if (ioa_cfg->in_ioa_bringdown) { | |
6373 | ipr_cmd->job_step = ipr_ioa_bringdown_done; | |
6374 | } else { | |
6375 | ipr_cmd->job_step = ipr_reset_enable_ioa; | |
6376 | ||
6377 | if (GET_DUMP == ioa_cfg->sdt_state) { | |
6378 | ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT); | |
6379 | ipr_cmd->job_step = ipr_reset_wait_for_dump; | |
6380 | schedule_work(&ioa_cfg->work_q); | |
6381 | return IPR_RC_JOB_RETURN; | |
6382 | } | |
6383 | } | |
6384 | ||
6385 | ENTER; | |
6386 | return IPR_RC_JOB_CONTINUE; | |
6387 | } | |
6388 | ||
e619e1a7 BK |
6389 | /** |
6390 | * ipr_reset_bist_done - BIST has completed on the adapter. | |
6391 | * @ipr_cmd: ipr command struct | |
6392 | * | |
6393 | * Description: Unblock config space and resume the reset process. | |
6394 | * | |
6395 | * Return value: | |
6396 | * IPR_RC_JOB_CONTINUE | |
6397 | **/ | |
6398 | static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd) | |
6399 | { | |
6400 | ENTER; | |
6401 | pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); | |
6402 | ipr_cmd->job_step = ipr_reset_restore_cfg_space; | |
6403 | LEAVE; | |
6404 | return IPR_RC_JOB_CONTINUE; | |
6405 | } | |
6406 | ||
1da177e4 LT |
6407 | /** |
6408 | * ipr_reset_start_bist - Run BIST on the adapter. | |
6409 | * @ipr_cmd: ipr command struct | |
6410 | * | |
6411 | * Description: This function runs BIST on the adapter, then delays 2 seconds. | |
6412 | * | |
6413 | * Return value: | |
6414 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
6415 | **/ | |
6416 | static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) | |
6417 | { | |
6418 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6419 | int rc; | |
6420 | ||
6421 | ENTER; | |
b30197d2 | 6422 | pci_block_user_cfg_access(ioa_cfg->pdev); |
1da177e4 LT |
6423 | rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); |
6424 | ||
6425 | if (rc != PCIBIOS_SUCCESSFUL) { | |
a9aedb09 | 6426 | pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); |
1da177e4 LT |
6427 | ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); |
6428 | rc = IPR_RC_JOB_CONTINUE; | |
6429 | } else { | |
e619e1a7 | 6430 | ipr_cmd->job_step = ipr_reset_bist_done; |
1da177e4 LT |
6431 | ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); |
6432 | rc = IPR_RC_JOB_RETURN; | |
6433 | } | |
6434 | ||
6435 | LEAVE; | |
6436 | return rc; | |
6437 | } | |
6438 | ||
6439 | /** | |
6440 | * ipr_reset_allowed - Query whether or not IOA can be reset | |
6441 | * @ioa_cfg: ioa config struct | |
6442 | * | |
6443 | * Return value: | |
6444 | * 0 if reset not allowed / non-zero if reset is allowed | |
6445 | **/ | |
6446 | static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) | |
6447 | { | |
6448 | volatile u32 temp_reg; | |
6449 | ||
6450 | temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
6451 | return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); | |
6452 | } | |
6453 | ||
6454 | /** | |
6455 | * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. | |
6456 | * @ipr_cmd: ipr command struct | |
6457 | * | |
6458 | * Description: This function waits for adapter permission to run BIST, | |
6459 | * then runs BIST. If the adapter does not give permission after a | |
6460 | * reasonable time, we will reset the adapter anyway. The impact of | |
6461 | * resetting the adapter without warning the adapter is the risk of | |
6462 | * losing the persistent error log on the adapter. If the adapter is | |
6463 | * reset while it is writing to the flash on the adapter, the flash | |
6464 | * segment will have bad ECC and be zeroed. | |
6465 | * | |
6466 | * Return value: | |
6467 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
6468 | **/ | |
6469 | static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) | |
6470 | { | |
6471 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6472 | int rc = IPR_RC_JOB_RETURN; | |
6473 | ||
6474 | if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { | |
6475 | ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; | |
6476 | ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); | |
6477 | } else { | |
6478 | ipr_cmd->job_step = ipr_reset_start_bist; | |
6479 | rc = IPR_RC_JOB_CONTINUE; | |
6480 | } | |
6481 | ||
6482 | return rc; | |
6483 | } | |
6484 | ||
6485 | /** | |
6486 | * ipr_reset_alert_part2 - Alert the adapter of a pending reset | |
6487 | * @ipr_cmd: ipr command struct | |
6488 | * | |
6489 | * Description: This function alerts the adapter that it will be reset. | |
6490 | * If memory space is not currently enabled, proceed directly | |
6491 | * to running BIST on the adapter. The timer must always be started | |
6492 | * so we guarantee we do not run BIST from ipr_isr. | |
6493 | * | |
6494 | * Return value: | |
6495 | * IPR_RC_JOB_RETURN | |
6496 | **/ | |
6497 | static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) | |
6498 | { | |
6499 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6500 | u16 cmd_reg; | |
6501 | int rc; | |
6502 | ||
6503 | ENTER; | |
6504 | rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg); | |
6505 | ||
6506 | if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { | |
6507 | ipr_mask_and_clear_interrupts(ioa_cfg, ~0); | |
6508 | writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg); | |
6509 | ipr_cmd->job_step = ipr_reset_wait_to_start_bist; | |
6510 | } else { | |
6511 | ipr_cmd->job_step = ipr_reset_start_bist; | |
6512 | } | |
6513 | ||
6514 | ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; | |
6515 | ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); | |
6516 | ||
6517 | LEAVE; | |
6518 | return IPR_RC_JOB_RETURN; | |
6519 | } | |
6520 | ||
6521 | /** | |
6522 | * ipr_reset_ucode_download_done - Microcode download completion | |
6523 | * @ipr_cmd: ipr command struct | |
6524 | * | |
6525 | * Description: This function unmaps the microcode download buffer. | |
6526 | * | |
6527 | * Return value: | |
6528 | * IPR_RC_JOB_CONTINUE | |
6529 | **/ | |
6530 | static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) | |
6531 | { | |
6532 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6533 | struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; | |
6534 | ||
6535 | pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist, | |
6536 | sglist->num_sg, DMA_TO_DEVICE); | |
6537 | ||
6538 | ipr_cmd->job_step = ipr_reset_alert; | |
6539 | return IPR_RC_JOB_CONTINUE; | |
6540 | } | |
6541 | ||
6542 | /** | |
6543 | * ipr_reset_ucode_download - Download microcode to the adapter | |
6544 | * @ipr_cmd: ipr command struct | |
6545 | * | |
6546 | * Description: This function checks to see if it there is microcode | |
6547 | * to download to the adapter. If there is, a download is performed. | |
6548 | * | |
6549 | * Return value: | |
6550 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
6551 | **/ | |
6552 | static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) | |
6553 | { | |
6554 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6555 | struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; | |
6556 | ||
6557 | ENTER; | |
6558 | ipr_cmd->job_step = ipr_reset_alert; | |
6559 | ||
6560 | if (!sglist) | |
6561 | return IPR_RC_JOB_CONTINUE; | |
6562 | ||
6563 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
6564 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
6565 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; | |
6566 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; | |
6567 | ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; | |
6568 | ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; | |
6569 | ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; | |
6570 | ||
12baa420 | 6571 | ipr_build_ucode_ioadl(ipr_cmd, sglist); |
1da177e4 LT |
6572 | ipr_cmd->job_step = ipr_reset_ucode_download_done; |
6573 | ||
6574 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, | |
6575 | IPR_WRITE_BUFFER_TIMEOUT); | |
6576 | ||
6577 | LEAVE; | |
6578 | return IPR_RC_JOB_RETURN; | |
6579 | } | |
6580 | ||
6581 | /** | |
6582 | * ipr_reset_shutdown_ioa - Shutdown the adapter | |
6583 | * @ipr_cmd: ipr command struct | |
6584 | * | |
6585 | * Description: This function issues an adapter shutdown of the | |
6586 | * specified type to the specified adapter as part of the | |
6587 | * adapter reset job. | |
6588 | * | |
6589 | * Return value: | |
6590 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
6591 | **/ | |
6592 | static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) | |
6593 | { | |
6594 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6595 | enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; | |
6596 | unsigned long timeout; | |
6597 | int rc = IPR_RC_JOB_CONTINUE; | |
6598 | ||
6599 | ENTER; | |
6600 | if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) { | |
6601 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
6602 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
6603 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; | |
6604 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; | |
6605 | ||
6606 | if (shutdown_type == IPR_SHUTDOWN_ABBREV) | |
6607 | timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; | |
6608 | else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) | |
6609 | timeout = IPR_INTERNAL_TIMEOUT; | |
6610 | else | |
6611 | timeout = IPR_SHUTDOWN_TIMEOUT; | |
6612 | ||
6613 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); | |
6614 | ||
6615 | rc = IPR_RC_JOB_RETURN; | |
6616 | ipr_cmd->job_step = ipr_reset_ucode_download; | |
6617 | } else | |
6618 | ipr_cmd->job_step = ipr_reset_alert; | |
6619 | ||
6620 | LEAVE; | |
6621 | return rc; | |
6622 | } | |
6623 | ||
6624 | /** | |
6625 | * ipr_reset_ioa_job - Adapter reset job | |
6626 | * @ipr_cmd: ipr command struct | |
6627 | * | |
6628 | * Description: This function is the job router for the adapter reset job. | |
6629 | * | |
6630 | * Return value: | |
6631 | * none | |
6632 | **/ | |
6633 | static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) | |
6634 | { | |
6635 | u32 rc, ioasc; | |
1da177e4 LT |
6636 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
6637 | ||
6638 | do { | |
6639 | ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
6640 | ||
6641 | if (ioa_cfg->reset_cmd != ipr_cmd) { | |
6642 | /* | |
6643 | * We are doing nested adapter resets and this is | |
6644 | * not the current reset job. | |
6645 | */ | |
6646 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
6647 | return; | |
6648 | } | |
6649 | ||
6650 | if (IPR_IOASC_SENSE_KEY(ioasc)) { | |
dfed823e | 6651 | rc = ipr_cmd->job_step_failed(ipr_cmd); |
6652 | if (rc == IPR_RC_JOB_RETURN) | |
6653 | return; | |
1da177e4 LT |
6654 | } |
6655 | ||
6656 | ipr_reinit_ipr_cmnd(ipr_cmd); | |
dfed823e | 6657 | ipr_cmd->job_step_failed = ipr_reset_cmd_failed; |
1da177e4 LT |
6658 | rc = ipr_cmd->job_step(ipr_cmd); |
6659 | } while(rc == IPR_RC_JOB_CONTINUE); | |
6660 | } | |
6661 | ||
6662 | /** | |
6663 | * _ipr_initiate_ioa_reset - Initiate an adapter reset | |
6664 | * @ioa_cfg: ioa config struct | |
6665 | * @job_step: first job step of reset job | |
6666 | * @shutdown_type: shutdown type | |
6667 | * | |
6668 | * Description: This function will initiate the reset of the given adapter | |
6669 | * starting at the selected job step. | |
6670 | * If the caller needs to wait on the completion of the reset, | |
6671 | * the caller must sleep on the reset_wait_q. | |
6672 | * | |
6673 | * Return value: | |
6674 | * none | |
6675 | **/ | |
6676 | static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, | |
6677 | int (*job_step) (struct ipr_cmnd *), | |
6678 | enum ipr_shutdown_type shutdown_type) | |
6679 | { | |
6680 | struct ipr_cmnd *ipr_cmd; | |
6681 | ||
6682 | ioa_cfg->in_reset_reload = 1; | |
6683 | ioa_cfg->allow_cmds = 0; | |
6684 | scsi_block_requests(ioa_cfg->host); | |
6685 | ||
6686 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
6687 | ioa_cfg->reset_cmd = ipr_cmd; | |
6688 | ipr_cmd->job_step = job_step; | |
6689 | ipr_cmd->u.shutdown_type = shutdown_type; | |
6690 | ||
6691 | ipr_reset_ioa_job(ipr_cmd); | |
6692 | } | |
6693 | ||
6694 | /** | |
6695 | * ipr_initiate_ioa_reset - Initiate an adapter reset | |
6696 | * @ioa_cfg: ioa config struct | |
6697 | * @shutdown_type: shutdown type | |
6698 | * | |
6699 | * Description: This function will initiate the reset of the given adapter. | |
6700 | * If the caller needs to wait on the completion of the reset, | |
6701 | * the caller must sleep on the reset_wait_q. | |
6702 | * | |
6703 | * Return value: | |
6704 | * none | |
6705 | **/ | |
6706 | static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, | |
6707 | enum ipr_shutdown_type shutdown_type) | |
6708 | { | |
6709 | if (ioa_cfg->ioa_is_dead) | |
6710 | return; | |
6711 | ||
6712 | if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP) | |
6713 | ioa_cfg->sdt_state = ABORT_DUMP; | |
6714 | ||
6715 | if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { | |
6716 | dev_err(&ioa_cfg->pdev->dev, | |
6717 | "IOA taken offline - error recovery failed\n"); | |
6718 | ||
6719 | ioa_cfg->reset_retries = 0; | |
6720 | ioa_cfg->ioa_is_dead = 1; | |
6721 | ||
6722 | if (ioa_cfg->in_ioa_bringdown) { | |
6723 | ioa_cfg->reset_cmd = NULL; | |
6724 | ioa_cfg->in_reset_reload = 0; | |
6725 | ipr_fail_all_ops(ioa_cfg); | |
6726 | wake_up_all(&ioa_cfg->reset_wait_q); | |
6727 | ||
6728 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
6729 | scsi_unblock_requests(ioa_cfg->host); | |
6730 | spin_lock_irq(ioa_cfg->host->host_lock); | |
6731 | return; | |
6732 | } else { | |
6733 | ioa_cfg->in_ioa_bringdown = 1; | |
6734 | shutdown_type = IPR_SHUTDOWN_NONE; | |
6735 | } | |
6736 | } | |
6737 | ||
6738 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa, | |
6739 | shutdown_type); | |
6740 | } | |
6741 | ||
f8a88b19 LV |
6742 | /** |
6743 | * ipr_reset_freeze - Hold off all I/O activity | |
6744 | * @ipr_cmd: ipr command struct | |
6745 | * | |
6746 | * Description: If the PCI slot is frozen, hold off all I/O | |
6747 | * activity; then, as soon as the slot is available again, | |
6748 | * initiate an adapter reset. | |
6749 | */ | |
6750 | static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) | |
6751 | { | |
6752 | /* Disallow new interrupts, avoid loop */ | |
6753 | ipr_cmd->ioa_cfg->allow_interrupts = 0; | |
6754 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); | |
6755 | ipr_cmd->done = ipr_reset_ioa_job; | |
6756 | return IPR_RC_JOB_RETURN; | |
6757 | } | |
6758 | ||
6759 | /** | |
6760 | * ipr_pci_frozen - Called when slot has experienced a PCI bus error. | |
6761 | * @pdev: PCI device struct | |
6762 | * | |
6763 | * Description: This routine is called to tell us that the PCI bus | |
6764 | * is down. Can't do anything here, except put the device driver | |
6765 | * into a holding pattern, waiting for the PCI bus to come back. | |
6766 | */ | |
6767 | static void ipr_pci_frozen(struct pci_dev *pdev) | |
6768 | { | |
6769 | unsigned long flags = 0; | |
6770 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
6771 | ||
6772 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
6773 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE); | |
6774 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
6775 | } | |
6776 | ||
6777 | /** | |
6778 | * ipr_pci_slot_reset - Called when PCI slot has been reset. | |
6779 | * @pdev: PCI device struct | |
6780 | * | |
6781 | * Description: This routine is called by the pci error recovery | |
6782 | * code after the PCI slot has been reset, just before we | |
6783 | * should resume normal operations. | |
6784 | */ | |
6785 | static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) | |
6786 | { | |
6787 | unsigned long flags = 0; | |
6788 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
6789 | ||
6790 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
6791 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space, | |
6792 | IPR_SHUTDOWN_NONE); | |
6793 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
6794 | return PCI_ERS_RESULT_RECOVERED; | |
6795 | } | |
6796 | ||
6797 | /** | |
6798 | * ipr_pci_perm_failure - Called when PCI slot is dead for good. | |
6799 | * @pdev: PCI device struct | |
6800 | * | |
6801 | * Description: This routine is called when the PCI bus has | |
6802 | * permanently failed. | |
6803 | */ | |
6804 | static void ipr_pci_perm_failure(struct pci_dev *pdev) | |
6805 | { | |
6806 | unsigned long flags = 0; | |
6807 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
6808 | ||
6809 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
6810 | if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) | |
6811 | ioa_cfg->sdt_state = ABORT_DUMP; | |
6812 | ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES; | |
6813 | ioa_cfg->in_ioa_bringdown = 1; | |
6814 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
6815 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
6816 | } | |
6817 | ||
6818 | /** | |
6819 | * ipr_pci_error_detected - Called when a PCI error is detected. | |
6820 | * @pdev: PCI device struct | |
6821 | * @state: PCI channel state | |
6822 | * | |
6823 | * Description: Called when a PCI error is detected. | |
6824 | * | |
6825 | * Return value: | |
6826 | * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT | |
6827 | */ | |
6828 | static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, | |
6829 | pci_channel_state_t state) | |
6830 | { | |
6831 | switch (state) { | |
6832 | case pci_channel_io_frozen: | |
6833 | ipr_pci_frozen(pdev); | |
6834 | return PCI_ERS_RESULT_NEED_RESET; | |
6835 | case pci_channel_io_perm_failure: | |
6836 | ipr_pci_perm_failure(pdev); | |
6837 | return PCI_ERS_RESULT_DISCONNECT; | |
6838 | break; | |
6839 | default: | |
6840 | break; | |
6841 | } | |
6842 | return PCI_ERS_RESULT_NEED_RESET; | |
6843 | } | |
6844 | ||
1da177e4 LT |
6845 | /** |
6846 | * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) | |
6847 | * @ioa_cfg: ioa cfg struct | |
6848 | * | |
6849 | * Description: This is the second phase of adapter intialization | |
6850 | * This function takes care of initilizing the adapter to the point | |
6851 | * where it can accept new commands. | |
6852 | ||
6853 | * Return value: | |
6854 | * 0 on sucess / -EIO on failure | |
6855 | **/ | |
6856 | static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) | |
6857 | { | |
6858 | int rc = 0; | |
6859 | unsigned long host_lock_flags = 0; | |
6860 | ||
6861 | ENTER; | |
6862 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); | |
6863 | dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg); | |
ce155cce | 6864 | if (ioa_cfg->needs_hard_reset) { |
6865 | ioa_cfg->needs_hard_reset = 0; | |
6866 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
6867 | } else | |
6868 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, | |
6869 | IPR_SHUTDOWN_NONE); | |
1da177e4 LT |
6870 | |
6871 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
6872 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
6873 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); | |
6874 | ||
6875 | if (ioa_cfg->ioa_is_dead) { | |
6876 | rc = -EIO; | |
6877 | } else if (ipr_invalid_adapter(ioa_cfg)) { | |
6878 | if (!ipr_testmode) | |
6879 | rc = -EIO; | |
6880 | ||
6881 | dev_err(&ioa_cfg->pdev->dev, | |
6882 | "Adapter not supported in this hardware configuration.\n"); | |
6883 | } | |
6884 | ||
6885 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
6886 | ||
6887 | LEAVE; | |
6888 | return rc; | |
6889 | } | |
6890 | ||
6891 | /** | |
6892 | * ipr_free_cmd_blks - Frees command blocks allocated for an adapter | |
6893 | * @ioa_cfg: ioa config struct | |
6894 | * | |
6895 | * Return value: | |
6896 | * none | |
6897 | **/ | |
6898 | static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) | |
6899 | { | |
6900 | int i; | |
6901 | ||
6902 | for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { | |
6903 | if (ioa_cfg->ipr_cmnd_list[i]) | |
6904 | pci_pool_free(ioa_cfg->ipr_cmd_pool, | |
6905 | ioa_cfg->ipr_cmnd_list[i], | |
6906 | ioa_cfg->ipr_cmnd_list_dma[i]); | |
6907 | ||
6908 | ioa_cfg->ipr_cmnd_list[i] = NULL; | |
6909 | } | |
6910 | ||
6911 | if (ioa_cfg->ipr_cmd_pool) | |
6912 | pci_pool_destroy (ioa_cfg->ipr_cmd_pool); | |
6913 | ||
6914 | ioa_cfg->ipr_cmd_pool = NULL; | |
6915 | } | |
6916 | ||
6917 | /** | |
6918 | * ipr_free_mem - Frees memory allocated for an adapter | |
6919 | * @ioa_cfg: ioa cfg struct | |
6920 | * | |
6921 | * Return value: | |
6922 | * nothing | |
6923 | **/ | |
6924 | static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) | |
6925 | { | |
6926 | int i; | |
6927 | ||
6928 | kfree(ioa_cfg->res_entries); | |
6929 | pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs), | |
6930 | ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); | |
6931 | ipr_free_cmd_blks(ioa_cfg); | |
6932 | pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, | |
6933 | ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); | |
6934 | pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_config_table), | |
6935 | ioa_cfg->cfg_table, | |
6936 | ioa_cfg->cfg_table_dma); | |
6937 | ||
6938 | for (i = 0; i < IPR_NUM_HCAMS; i++) { | |
6939 | pci_free_consistent(ioa_cfg->pdev, | |
6940 | sizeof(struct ipr_hostrcb), | |
6941 | ioa_cfg->hostrcb[i], | |
6942 | ioa_cfg->hostrcb_dma[i]); | |
6943 | } | |
6944 | ||
6945 | ipr_free_dump(ioa_cfg); | |
1da177e4 LT |
6946 | kfree(ioa_cfg->trace); |
6947 | } | |
6948 | ||
6949 | /** | |
6950 | * ipr_free_all_resources - Free all allocated resources for an adapter. | |
6951 | * @ipr_cmd: ipr command struct | |
6952 | * | |
6953 | * This function frees all allocated resources for the | |
6954 | * specified adapter. | |
6955 | * | |
6956 | * Return value: | |
6957 | * none | |
6958 | **/ | |
6959 | static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) | |
6960 | { | |
6961 | struct pci_dev *pdev = ioa_cfg->pdev; | |
6962 | ||
6963 | ENTER; | |
6964 | free_irq(pdev->irq, ioa_cfg); | |
6965 | iounmap(ioa_cfg->hdw_dma_regs); | |
6966 | pci_release_regions(pdev); | |
6967 | ipr_free_mem(ioa_cfg); | |
6968 | scsi_host_put(ioa_cfg->host); | |
6969 | pci_disable_device(pdev); | |
6970 | LEAVE; | |
6971 | } | |
6972 | ||
6973 | /** | |
6974 | * ipr_alloc_cmd_blks - Allocate command blocks for an adapter | |
6975 | * @ioa_cfg: ioa config struct | |
6976 | * | |
6977 | * Return value: | |
6978 | * 0 on success / -ENOMEM on allocation failure | |
6979 | **/ | |
6980 | static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) | |
6981 | { | |
6982 | struct ipr_cmnd *ipr_cmd; | |
6983 | struct ipr_ioarcb *ioarcb; | |
6984 | dma_addr_t dma_addr; | |
6985 | int i; | |
6986 | ||
6987 | ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev, | |
6988 | sizeof(struct ipr_cmnd), 8, 0); | |
6989 | ||
6990 | if (!ioa_cfg->ipr_cmd_pool) | |
6991 | return -ENOMEM; | |
6992 | ||
6993 | for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { | |
e94b1766 | 6994 | ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr); |
1da177e4 LT |
6995 | |
6996 | if (!ipr_cmd) { | |
6997 | ipr_free_cmd_blks(ioa_cfg); | |
6998 | return -ENOMEM; | |
6999 | } | |
7000 | ||
7001 | memset(ipr_cmd, 0, sizeof(*ipr_cmd)); | |
7002 | ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; | |
7003 | ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; | |
7004 | ||
7005 | ioarcb = &ipr_cmd->ioarcb; | |
7006 | ioarcb->ioarcb_host_pci_addr = cpu_to_be32(dma_addr); | |
7007 | ioarcb->host_response_handle = cpu_to_be32(i << 2); | |
7008 | ioarcb->write_ioadl_addr = | |
7009 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl)); | |
7010 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; | |
7011 | ioarcb->ioasa_host_pci_addr = | |
7012 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa)); | |
7013 | ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); | |
7014 | ipr_cmd->cmd_index = i; | |
7015 | ipr_cmd->ioa_cfg = ioa_cfg; | |
7016 | ipr_cmd->sense_buffer_dma = dma_addr + | |
7017 | offsetof(struct ipr_cmnd, sense_buffer); | |
7018 | ||
7019 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
7020 | } | |
7021 | ||
7022 | return 0; | |
7023 | } | |
7024 | ||
7025 | /** | |
7026 | * ipr_alloc_mem - Allocate memory for an adapter | |
7027 | * @ioa_cfg: ioa config struct | |
7028 | * | |
7029 | * Return value: | |
7030 | * 0 on success / non-zero for error | |
7031 | **/ | |
7032 | static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) | |
7033 | { | |
7034 | struct pci_dev *pdev = ioa_cfg->pdev; | |
7035 | int i, rc = -ENOMEM; | |
7036 | ||
7037 | ENTER; | |
0bc42e35 | 7038 | ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) * |
1da177e4 LT |
7039 | IPR_MAX_PHYSICAL_DEVS, GFP_KERNEL); |
7040 | ||
7041 | if (!ioa_cfg->res_entries) | |
7042 | goto out; | |
7043 | ||
1da177e4 LT |
7044 | for (i = 0; i < IPR_MAX_PHYSICAL_DEVS; i++) |
7045 | list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); | |
7046 | ||
7047 | ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev, | |
7048 | sizeof(struct ipr_misc_cbs), | |
7049 | &ioa_cfg->vpd_cbs_dma); | |
7050 | ||
7051 | if (!ioa_cfg->vpd_cbs) | |
7052 | goto out_free_res_entries; | |
7053 | ||
7054 | if (ipr_alloc_cmd_blks(ioa_cfg)) | |
7055 | goto out_free_vpd_cbs; | |
7056 | ||
7057 | ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev, | |
7058 | sizeof(u32) * IPR_NUM_CMD_BLKS, | |
7059 | &ioa_cfg->host_rrq_dma); | |
7060 | ||
7061 | if (!ioa_cfg->host_rrq) | |
7062 | goto out_ipr_free_cmd_blocks; | |
7063 | ||
7064 | ioa_cfg->cfg_table = pci_alloc_consistent(ioa_cfg->pdev, | |
7065 | sizeof(struct ipr_config_table), | |
7066 | &ioa_cfg->cfg_table_dma); | |
7067 | ||
7068 | if (!ioa_cfg->cfg_table) | |
7069 | goto out_free_host_rrq; | |
7070 | ||
7071 | for (i = 0; i < IPR_NUM_HCAMS; i++) { | |
7072 | ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev, | |
7073 | sizeof(struct ipr_hostrcb), | |
7074 | &ioa_cfg->hostrcb_dma[i]); | |
7075 | ||
7076 | if (!ioa_cfg->hostrcb[i]) | |
7077 | goto out_free_hostrcb_dma; | |
7078 | ||
7079 | ioa_cfg->hostrcb[i]->hostrcb_dma = | |
7080 | ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); | |
49dc6a18 | 7081 | ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg; |
1da177e4 LT |
7082 | list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q); |
7083 | } | |
7084 | ||
0bc42e35 | 7085 | ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) * |
1da177e4 LT |
7086 | IPR_NUM_TRACE_ENTRIES, GFP_KERNEL); |
7087 | ||
7088 | if (!ioa_cfg->trace) | |
7089 | goto out_free_hostrcb_dma; | |
7090 | ||
1da177e4 LT |
7091 | rc = 0; |
7092 | out: | |
7093 | LEAVE; | |
7094 | return rc; | |
7095 | ||
7096 | out_free_hostrcb_dma: | |
7097 | while (i-- > 0) { | |
7098 | pci_free_consistent(pdev, sizeof(struct ipr_hostrcb), | |
7099 | ioa_cfg->hostrcb[i], | |
7100 | ioa_cfg->hostrcb_dma[i]); | |
7101 | } | |
7102 | pci_free_consistent(pdev, sizeof(struct ipr_config_table), | |
7103 | ioa_cfg->cfg_table, ioa_cfg->cfg_table_dma); | |
7104 | out_free_host_rrq: | |
7105 | pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, | |
7106 | ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); | |
7107 | out_ipr_free_cmd_blocks: | |
7108 | ipr_free_cmd_blks(ioa_cfg); | |
7109 | out_free_vpd_cbs: | |
7110 | pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs), | |
7111 | ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); | |
7112 | out_free_res_entries: | |
7113 | kfree(ioa_cfg->res_entries); | |
7114 | goto out; | |
7115 | } | |
7116 | ||
7117 | /** | |
7118 | * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values | |
7119 | * @ioa_cfg: ioa config struct | |
7120 | * | |
7121 | * Return value: | |
7122 | * none | |
7123 | **/ | |
7124 | static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) | |
7125 | { | |
7126 | int i; | |
7127 | ||
7128 | for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { | |
7129 | ioa_cfg->bus_attr[i].bus = i; | |
7130 | ioa_cfg->bus_attr[i].qas_enabled = 0; | |
7131 | ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; | |
7132 | if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) | |
7133 | ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; | |
7134 | else | |
7135 | ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; | |
7136 | } | |
7137 | } | |
7138 | ||
7139 | /** | |
7140 | * ipr_init_ioa_cfg - Initialize IOA config struct | |
7141 | * @ioa_cfg: ioa config struct | |
7142 | * @host: scsi host struct | |
7143 | * @pdev: PCI dev struct | |
7144 | * | |
7145 | * Return value: | |
7146 | * none | |
7147 | **/ | |
7148 | static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, | |
7149 | struct Scsi_Host *host, struct pci_dev *pdev) | |
7150 | { | |
7151 | const struct ipr_interrupt_offsets *p; | |
7152 | struct ipr_interrupts *t; | |
7153 | void __iomem *base; | |
7154 | ||
7155 | ioa_cfg->host = host; | |
7156 | ioa_cfg->pdev = pdev; | |
7157 | ioa_cfg->log_level = ipr_log_level; | |
3d1d0da6 | 7158 | ioa_cfg->doorbell = IPR_DOORBELL; |
1da177e4 LT |
7159 | sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER); |
7160 | sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL); | |
7161 | sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL); | |
7162 | sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL); | |
7163 | sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); | |
7164 | sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); | |
7165 | sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); | |
7166 | sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); | |
7167 | ||
7168 | INIT_LIST_HEAD(&ioa_cfg->free_q); | |
7169 | INIT_LIST_HEAD(&ioa_cfg->pending_q); | |
7170 | INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q); | |
7171 | INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q); | |
7172 | INIT_LIST_HEAD(&ioa_cfg->free_res_q); | |
7173 | INIT_LIST_HEAD(&ioa_cfg->used_res_q); | |
c4028958 | 7174 | INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread); |
1da177e4 LT |
7175 | init_waitqueue_head(&ioa_cfg->reset_wait_q); |
7176 | ioa_cfg->sdt_state = INACTIVE; | |
62275040 | 7177 | if (ipr_enable_cache) |
7178 | ioa_cfg->cache_state = CACHE_ENABLED; | |
7179 | else | |
7180 | ioa_cfg->cache_state = CACHE_DISABLED; | |
1da177e4 LT |
7181 | |
7182 | ipr_initialize_bus_attr(ioa_cfg); | |
7183 | ||
7184 | host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; | |
7185 | host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; | |
7186 | host->max_channel = IPR_MAX_BUS_TO_SCAN; | |
7187 | host->unique_id = host->host_no; | |
7188 | host->max_cmd_len = IPR_MAX_CDB_LEN; | |
7189 | pci_set_drvdata(pdev, ioa_cfg); | |
7190 | ||
7191 | p = &ioa_cfg->chip_cfg->regs; | |
7192 | t = &ioa_cfg->regs; | |
7193 | base = ioa_cfg->hdw_dma_regs; | |
7194 | ||
7195 | t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; | |
7196 | t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; | |
7197 | t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; | |
7198 | t->clr_interrupt_reg = base + p->clr_interrupt_reg; | |
7199 | t->sense_interrupt_reg = base + p->sense_interrupt_reg; | |
7200 | t->ioarrin_reg = base + p->ioarrin_reg; | |
7201 | t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; | |
7202 | t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; | |
7203 | t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; | |
7204 | } | |
7205 | ||
7206 | /** | |
7207 | * ipr_get_chip_cfg - Find adapter chip configuration | |
7208 | * @dev_id: PCI device id struct | |
7209 | * | |
7210 | * Return value: | |
7211 | * ptr to chip config on success / NULL on failure | |
7212 | **/ | |
7213 | static const struct ipr_chip_cfg_t * __devinit | |
7214 | ipr_get_chip_cfg(const struct pci_device_id *dev_id) | |
7215 | { | |
7216 | int i; | |
7217 | ||
1da177e4 LT |
7218 | for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) |
7219 | if (ipr_chip[i].vendor == dev_id->vendor && | |
7220 | ipr_chip[i].device == dev_id->device) | |
7221 | return ipr_chip[i].cfg; | |
7222 | return NULL; | |
7223 | } | |
7224 | ||
7225 | /** | |
7226 | * ipr_probe_ioa - Allocates memory and does first stage of initialization | |
7227 | * @pdev: PCI device struct | |
7228 | * @dev_id: PCI device id struct | |
7229 | * | |
7230 | * Return value: | |
7231 | * 0 on success / non-zero on failure | |
7232 | **/ | |
7233 | static int __devinit ipr_probe_ioa(struct pci_dev *pdev, | |
7234 | const struct pci_device_id *dev_id) | |
7235 | { | |
7236 | struct ipr_ioa_cfg *ioa_cfg; | |
7237 | struct Scsi_Host *host; | |
7238 | unsigned long ipr_regs_pci; | |
7239 | void __iomem *ipr_regs; | |
a2a65a3e | 7240 | int rc = PCIBIOS_SUCCESSFUL; |
ce155cce | 7241 | volatile u32 mask, uproc; |
1da177e4 LT |
7242 | |
7243 | ENTER; | |
7244 | ||
7245 | if ((rc = pci_enable_device(pdev))) { | |
7246 | dev_err(&pdev->dev, "Cannot enable adapter\n"); | |
7247 | goto out; | |
7248 | } | |
7249 | ||
7250 | dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq); | |
7251 | ||
7252 | host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); | |
7253 | ||
7254 | if (!host) { | |
7255 | dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n"); | |
7256 | rc = -ENOMEM; | |
7257 | goto out_disable; | |
7258 | } | |
7259 | ||
7260 | ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; | |
7261 | memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); | |
35a39691 BK |
7262 | ata_host_init(&ioa_cfg->ata_host, &pdev->dev, |
7263 | sata_port_info.flags, &ipr_sata_ops); | |
1da177e4 LT |
7264 | |
7265 | ioa_cfg->chip_cfg = ipr_get_chip_cfg(dev_id); | |
7266 | ||
7267 | if (!ioa_cfg->chip_cfg) { | |
7268 | dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n", | |
7269 | dev_id->vendor, dev_id->device); | |
7270 | goto out_scsi_host_put; | |
7271 | } | |
7272 | ||
5469cb5b BK |
7273 | if (ipr_transop_timeout) |
7274 | ioa_cfg->transop_timeout = ipr_transop_timeout; | |
7275 | else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT) | |
7276 | ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT; | |
7277 | else | |
7278 | ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT; | |
7279 | ||
1da177e4 LT |
7280 | ipr_regs_pci = pci_resource_start(pdev, 0); |
7281 | ||
7282 | rc = pci_request_regions(pdev, IPR_NAME); | |
7283 | if (rc < 0) { | |
7284 | dev_err(&pdev->dev, | |
7285 | "Couldn't register memory range of registers\n"); | |
7286 | goto out_scsi_host_put; | |
7287 | } | |
7288 | ||
7289 | ipr_regs = ioremap(ipr_regs_pci, pci_resource_len(pdev, 0)); | |
7290 | ||
7291 | if (!ipr_regs) { | |
7292 | dev_err(&pdev->dev, | |
7293 | "Couldn't map memory range of registers\n"); | |
7294 | rc = -ENOMEM; | |
7295 | goto out_release_regions; | |
7296 | } | |
7297 | ||
7298 | ioa_cfg->hdw_dma_regs = ipr_regs; | |
7299 | ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; | |
7300 | ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; | |
7301 | ||
7302 | ipr_init_ioa_cfg(ioa_cfg, host, pdev); | |
7303 | ||
7304 | pci_set_master(pdev); | |
7305 | ||
7306 | rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | |
7307 | if (rc < 0) { | |
7308 | dev_err(&pdev->dev, "Failed to set PCI DMA mask\n"); | |
7309 | goto cleanup_nomem; | |
7310 | } | |
7311 | ||
7312 | rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, | |
7313 | ioa_cfg->chip_cfg->cache_line_size); | |
7314 | ||
7315 | if (rc != PCIBIOS_SUCCESSFUL) { | |
7316 | dev_err(&pdev->dev, "Write of cache line size failed\n"); | |
7317 | rc = -EIO; | |
7318 | goto cleanup_nomem; | |
7319 | } | |
7320 | ||
7321 | /* Save away PCI config space for use following IOA reset */ | |
7322 | rc = pci_save_state(pdev); | |
7323 | ||
7324 | if (rc != PCIBIOS_SUCCESSFUL) { | |
7325 | dev_err(&pdev->dev, "Failed to save PCI config space\n"); | |
7326 | rc = -EIO; | |
7327 | goto cleanup_nomem; | |
7328 | } | |
7329 | ||
7330 | if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) | |
7331 | goto cleanup_nomem; | |
7332 | ||
7333 | if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) | |
7334 | goto cleanup_nomem; | |
7335 | ||
7336 | rc = ipr_alloc_mem(ioa_cfg); | |
7337 | if (rc < 0) { | |
7338 | dev_err(&pdev->dev, | |
7339 | "Couldn't allocate enough memory for device driver!\n"); | |
7340 | goto cleanup_nomem; | |
7341 | } | |
7342 | ||
ce155cce | 7343 | /* |
7344 | * If HRRQ updated interrupt is not masked, or reset alert is set, | |
7345 | * the card is in an unknown state and needs a hard reset | |
7346 | */ | |
7347 | mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
7348 | uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg); | |
7349 | if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) | |
7350 | ioa_cfg->needs_hard_reset = 1; | |
7351 | ||
1da177e4 | 7352 | ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); |
1d6f359a | 7353 | rc = request_irq(pdev->irq, ipr_isr, IRQF_SHARED, IPR_NAME, ioa_cfg); |
1da177e4 LT |
7354 | |
7355 | if (rc) { | |
7356 | dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n", | |
7357 | pdev->irq, rc); | |
7358 | goto cleanup_nolog; | |
7359 | } | |
7360 | ||
7361 | spin_lock(&ipr_driver_lock); | |
7362 | list_add_tail(&ioa_cfg->queue, &ipr_ioa_head); | |
7363 | spin_unlock(&ipr_driver_lock); | |
7364 | ||
7365 | LEAVE; | |
7366 | out: | |
7367 | return rc; | |
7368 | ||
7369 | cleanup_nolog: | |
7370 | ipr_free_mem(ioa_cfg); | |
7371 | cleanup_nomem: | |
7372 | iounmap(ipr_regs); | |
7373 | out_release_regions: | |
7374 | pci_release_regions(pdev); | |
7375 | out_scsi_host_put: | |
7376 | scsi_host_put(host); | |
7377 | out_disable: | |
7378 | pci_disable_device(pdev); | |
7379 | goto out; | |
7380 | } | |
7381 | ||
7382 | /** | |
7383 | * ipr_scan_vsets - Scans for VSET devices | |
7384 | * @ioa_cfg: ioa config struct | |
7385 | * | |
7386 | * Description: Since the VSET resources do not follow SAM in that we can have | |
7387 | * sparse LUNs with no LUN 0, we have to scan for these ourselves. | |
7388 | * | |
7389 | * Return value: | |
7390 | * none | |
7391 | **/ | |
7392 | static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg) | |
7393 | { | |
7394 | int target, lun; | |
7395 | ||
7396 | for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++) | |
7397 | for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ ) | |
7398 | scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun); | |
7399 | } | |
7400 | ||
7401 | /** | |
7402 | * ipr_initiate_ioa_bringdown - Bring down an adapter | |
7403 | * @ioa_cfg: ioa config struct | |
7404 | * @shutdown_type: shutdown type | |
7405 | * | |
7406 | * Description: This function will initiate bringing down the adapter. | |
7407 | * This consists of issuing an IOA shutdown to the adapter | |
7408 | * to flush the cache, and running BIST. | |
7409 | * If the caller needs to wait on the completion of the reset, | |
7410 | * the caller must sleep on the reset_wait_q. | |
7411 | * | |
7412 | * Return value: | |
7413 | * none | |
7414 | **/ | |
7415 | static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, | |
7416 | enum ipr_shutdown_type shutdown_type) | |
7417 | { | |
7418 | ENTER; | |
7419 | if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) | |
7420 | ioa_cfg->sdt_state = ABORT_DUMP; | |
7421 | ioa_cfg->reset_retries = 0; | |
7422 | ioa_cfg->in_ioa_bringdown = 1; | |
7423 | ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); | |
7424 | LEAVE; | |
7425 | } | |
7426 | ||
7427 | /** | |
7428 | * __ipr_remove - Remove a single adapter | |
7429 | * @pdev: pci device struct | |
7430 | * | |
7431 | * Adapter hot plug remove entry point. | |
7432 | * | |
7433 | * Return value: | |
7434 | * none | |
7435 | **/ | |
7436 | static void __ipr_remove(struct pci_dev *pdev) | |
7437 | { | |
7438 | unsigned long host_lock_flags = 0; | |
7439 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
7440 | ENTER; | |
7441 | ||
7442 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); | |
970ea294 BK |
7443 | while(ioa_cfg->in_reset_reload) { |
7444 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
7445 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
7446 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); | |
7447 | } | |
7448 | ||
1da177e4 LT |
7449 | ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); |
7450 | ||
7451 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
7452 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
5cbf5eae | 7453 | flush_scheduled_work(); |
1da177e4 LT |
7454 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); |
7455 | ||
7456 | spin_lock(&ipr_driver_lock); | |
7457 | list_del(&ioa_cfg->queue); | |
7458 | spin_unlock(&ipr_driver_lock); | |
7459 | ||
7460 | if (ioa_cfg->sdt_state == ABORT_DUMP) | |
7461 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; | |
7462 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
7463 | ||
7464 | ipr_free_all_resources(ioa_cfg); | |
7465 | ||
7466 | LEAVE; | |
7467 | } | |
7468 | ||
7469 | /** | |
7470 | * ipr_remove - IOA hot plug remove entry point | |
7471 | * @pdev: pci device struct | |
7472 | * | |
7473 | * Adapter hot plug remove entry point. | |
7474 | * | |
7475 | * Return value: | |
7476 | * none | |
7477 | **/ | |
7478 | static void ipr_remove(struct pci_dev *pdev) | |
7479 | { | |
7480 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
7481 | ||
7482 | ENTER; | |
7483 | ||
1da177e4 LT |
7484 | ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj, |
7485 | &ipr_trace_attr); | |
7486 | ipr_remove_dump_file(&ioa_cfg->host->shost_classdev.kobj, | |
7487 | &ipr_dump_attr); | |
7488 | scsi_remove_host(ioa_cfg->host); | |
7489 | ||
7490 | __ipr_remove(pdev); | |
7491 | ||
7492 | LEAVE; | |
7493 | } | |
7494 | ||
7495 | /** | |
7496 | * ipr_probe - Adapter hot plug add entry point | |
7497 | * | |
7498 | * Return value: | |
7499 | * 0 on success / non-zero on failure | |
7500 | **/ | |
7501 | static int __devinit ipr_probe(struct pci_dev *pdev, | |
7502 | const struct pci_device_id *dev_id) | |
7503 | { | |
7504 | struct ipr_ioa_cfg *ioa_cfg; | |
7505 | int rc; | |
7506 | ||
7507 | rc = ipr_probe_ioa(pdev, dev_id); | |
7508 | ||
7509 | if (rc) | |
7510 | return rc; | |
7511 | ||
7512 | ioa_cfg = pci_get_drvdata(pdev); | |
7513 | rc = ipr_probe_ioa_part2(ioa_cfg); | |
7514 | ||
7515 | if (rc) { | |
7516 | __ipr_remove(pdev); | |
7517 | return rc; | |
7518 | } | |
7519 | ||
7520 | rc = scsi_add_host(ioa_cfg->host, &pdev->dev); | |
7521 | ||
7522 | if (rc) { | |
7523 | __ipr_remove(pdev); | |
7524 | return rc; | |
7525 | } | |
7526 | ||
7527 | rc = ipr_create_trace_file(&ioa_cfg->host->shost_classdev.kobj, | |
7528 | &ipr_trace_attr); | |
7529 | ||
7530 | if (rc) { | |
7531 | scsi_remove_host(ioa_cfg->host); | |
7532 | __ipr_remove(pdev); | |
7533 | return rc; | |
7534 | } | |
7535 | ||
7536 | rc = ipr_create_dump_file(&ioa_cfg->host->shost_classdev.kobj, | |
7537 | &ipr_dump_attr); | |
7538 | ||
7539 | if (rc) { | |
7540 | ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj, | |
7541 | &ipr_trace_attr); | |
7542 | scsi_remove_host(ioa_cfg->host); | |
7543 | __ipr_remove(pdev); | |
7544 | return rc; | |
7545 | } | |
7546 | ||
7547 | scsi_scan_host(ioa_cfg->host); | |
7548 | ipr_scan_vsets(ioa_cfg); | |
7549 | scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN); | |
7550 | ioa_cfg->allow_ml_add_del = 1; | |
11cd8f12 | 7551 | ioa_cfg->host->max_channel = IPR_VSET_BUS; |
1da177e4 LT |
7552 | schedule_work(&ioa_cfg->work_q); |
7553 | return 0; | |
7554 | } | |
7555 | ||
7556 | /** | |
7557 | * ipr_shutdown - Shutdown handler. | |
d18c3db5 | 7558 | * @pdev: pci device struct |
1da177e4 LT |
7559 | * |
7560 | * This function is invoked upon system shutdown/reboot. It will issue | |
7561 | * an adapter shutdown to the adapter to flush the write cache. | |
7562 | * | |
7563 | * Return value: | |
7564 | * none | |
7565 | **/ | |
d18c3db5 | 7566 | static void ipr_shutdown(struct pci_dev *pdev) |
1da177e4 | 7567 | { |
d18c3db5 | 7568 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
1da177e4 LT |
7569 | unsigned long lock_flags = 0; |
7570 | ||
7571 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
970ea294 BK |
7572 | while(ioa_cfg->in_reset_reload) { |
7573 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
7574 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
7575 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
7576 | } | |
7577 | ||
1da177e4 LT |
7578 | ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); |
7579 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
7580 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
7581 | } | |
7582 | ||
7583 | static struct pci_device_id ipr_pci_table[] __devinitdata = { | |
7584 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, | |
6d84c944 | 7585 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 }, |
1da177e4 | 7586 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
6d84c944 | 7587 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 }, |
1da177e4 | 7588 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
6d84c944 | 7589 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 }, |
1da177e4 | 7590 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
6d84c944 | 7591 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 }, |
1da177e4 | 7592 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
6d84c944 | 7593 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 }, |
1da177e4 | 7594 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
6d84c944 | 7595 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 }, |
1da177e4 | 7596 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
6d84c944 | 7597 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 }, |
86f51436 | 7598 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
5469cb5b BK |
7599 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0, |
7600 | IPR_USE_LONG_TRANSOP_TIMEOUT }, | |
86f51436 | 7601 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, |
6d84c944 | 7602 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, |
86f51436 | 7603 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, |
6d84c944 | 7604 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 0 }, |
60e7486b | 7605 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, |
5469cb5b BK |
7606 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, |
7607 | IPR_USE_LONG_TRANSOP_TIMEOUT }, | |
86f51436 | 7608 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, |
6d84c944 | 7609 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, |
86f51436 | 7610 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, |
6d84c944 | 7611 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 0 }, |
60e7486b | 7612 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, |
5469cb5b BK |
7613 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, |
7614 | IPR_USE_LONG_TRANSOP_TIMEOUT }, | |
185eb31c BK |
7615 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, |
7616 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0, 0 }, | |
7617 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, | |
7618 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, | |
7619 | IPR_USE_LONG_TRANSOP_TIMEOUT }, | |
7620 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, | |
7621 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 }, | |
60e7486b | 7622 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, |
5469cb5b BK |
7623 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0, |
7624 | IPR_USE_LONG_TRANSOP_TIMEOUT }, | |
1da177e4 | 7625 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, |
6d84c944 | 7626 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 }, |
1da177e4 | 7627 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
6d84c944 | 7628 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 }, |
86f51436 | 7629 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
5469cb5b BK |
7630 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0, |
7631 | IPR_USE_LONG_TRANSOP_TIMEOUT }, | |
60e7486b | 7632 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
5469cb5b BK |
7633 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0, |
7634 | IPR_USE_LONG_TRANSOP_TIMEOUT }, | |
185eb31c BK |
7635 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SCAMP_E, |
7636 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, | |
7637 | IPR_USE_LONG_TRANSOP_TIMEOUT }, | |
1da177e4 LT |
7638 | { } |
7639 | }; | |
7640 | MODULE_DEVICE_TABLE(pci, ipr_pci_table); | |
7641 | ||
f8a88b19 LV |
7642 | static struct pci_error_handlers ipr_err_handler = { |
7643 | .error_detected = ipr_pci_error_detected, | |
7644 | .slot_reset = ipr_pci_slot_reset, | |
7645 | }; | |
7646 | ||
1da177e4 LT |
7647 | static struct pci_driver ipr_driver = { |
7648 | .name = IPR_NAME, | |
7649 | .id_table = ipr_pci_table, | |
7650 | .probe = ipr_probe, | |
7651 | .remove = ipr_remove, | |
d18c3db5 | 7652 | .shutdown = ipr_shutdown, |
f8a88b19 | 7653 | .err_handler = &ipr_err_handler, |
68c96e59 | 7654 | .dynids.use_driver_data = 1 |
1da177e4 LT |
7655 | }; |
7656 | ||
7657 | /** | |
7658 | * ipr_init - Module entry point | |
7659 | * | |
7660 | * Return value: | |
7661 | * 0 on success / negative value on failure | |
7662 | **/ | |
7663 | static int __init ipr_init(void) | |
7664 | { | |
7665 | ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", | |
7666 | IPR_DRIVER_VERSION, IPR_DRIVER_DATE); | |
7667 | ||
dcbccbde | 7668 | return pci_register_driver(&ipr_driver); |
1da177e4 LT |
7669 | } |
7670 | ||
7671 | /** | |
7672 | * ipr_exit - Module unload | |
7673 | * | |
7674 | * Module unload entry point. | |
7675 | * | |
7676 | * Return value: | |
7677 | * none | |
7678 | **/ | |
7679 | static void __exit ipr_exit(void) | |
7680 | { | |
7681 | pci_unregister_driver(&ipr_driver); | |
7682 | } | |
7683 | ||
7684 | module_init(ipr_init); | |
7685 | module_exit(ipr_exit); |