Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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> |
| 73 | #include <asm/io.h> |
| 74 | #include <asm/irq.h> |
| 75 | #include <asm/processor.h> |
| 76 | #include <scsi/scsi.h> |
| 77 | #include <scsi/scsi_host.h> |
| 78 | #include <scsi/scsi_tcq.h> |
| 79 | #include <scsi/scsi_eh.h> |
| 80 | #include <scsi/scsi_cmnd.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | #include "ipr.h" |
| 82 | |
| 83 | /* |
| 84 | * Global Data |
| 85 | */ |
| 86 | static struct list_head ipr_ioa_head = LIST_HEAD_INIT(ipr_ioa_head); |
| 87 | static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL; |
| 88 | static unsigned int ipr_max_speed = 1; |
| 89 | static int ipr_testmode = 0; |
| 90 | static unsigned int ipr_fastfail = 0; |
| 91 | static unsigned int ipr_transop_timeout = IPR_OPERATIONAL_TIMEOUT; |
brking@us.ibm.com | 6227504 | 2005-11-01 17:01:14 -0600 | [diff] [blame] | 92 | static unsigned int ipr_enable_cache = 1; |
brking@us.ibm.com | d3c7487 | 2005-11-01 17:01:34 -0600 | [diff] [blame] | 93 | static unsigned int ipr_debug = 0; |
brking@us.ibm.com | 32d2977 | 2005-11-01 17:02:01 -0600 | [diff] [blame] | 94 | static int ipr_auto_create = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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[] = { |
brking@us.ibm.com | 86f5143 | 2005-11-01 17:02:42 -0600 | [diff] [blame] | 99 | { /* Gemstone, Citrine, and Obsidian */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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] }, |
brking@us.ibm.com | 86f5143 | 2005-11-01 17:02:42 -0600 | [diff] [blame] | 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] }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, &ipr_chip_cfg[1] }, |
| 137 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, &ipr_chip_cfg[1] } |
| 138 | }; |
| 139 | |
| 140 | static int ipr_max_bus_speeds [] = { |
| 141 | IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE |
| 142 | }; |
| 143 | |
| 144 | MODULE_AUTHOR("Brian King <brking@us.ibm.com>"); |
| 145 | MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver"); |
| 146 | module_param_named(max_speed, ipr_max_speed, uint, 0); |
| 147 | MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320"); |
| 148 | module_param_named(log_level, ipr_log_level, uint, 0); |
| 149 | MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver"); |
| 150 | module_param_named(testmode, ipr_testmode, int, 0); |
| 151 | MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations"); |
| 152 | module_param_named(fastfail, ipr_fastfail, int, 0); |
| 153 | MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries"); |
| 154 | module_param_named(transop_timeout, ipr_transop_timeout, int, 0); |
| 155 | MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)"); |
brking@us.ibm.com | 6227504 | 2005-11-01 17:01:14 -0600 | [diff] [blame] | 156 | module_param_named(enable_cache, ipr_enable_cache, int, 0); |
| 157 | MODULE_PARM_DESC(enable_cache, "Enable adapter's non-volatile write cache (default: 1)"); |
brking@us.ibm.com | d3c7487 | 2005-11-01 17:01:34 -0600 | [diff] [blame] | 158 | module_param_named(debug, ipr_debug, int, 0); |
| 159 | MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)"); |
brking@us.ibm.com | 32d2977 | 2005-11-01 17:02:01 -0600 | [diff] [blame] | 160 | module_param_named(auto_create, ipr_auto_create, int, 0); |
| 161 | MODULE_PARM_DESC(auto_create, "Auto-create single device RAID 0 arrays when initialized (default: 1)"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | MODULE_LICENSE("GPL"); |
| 163 | MODULE_VERSION(IPR_DRIVER_VERSION); |
| 164 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | /* A constant array of IOASCs/URCs/Error Messages */ |
| 166 | static const |
| 167 | struct ipr_error_table_t ipr_error_table[] = { |
| 168 | {0x00000000, 1, 1, |
| 169 | "8155: An unknown error was received"}, |
| 170 | {0x00330000, 0, 0, |
| 171 | "Soft underlength error"}, |
| 172 | {0x005A0000, 0, 0, |
| 173 | "Command to be cancelled not found"}, |
| 174 | {0x00808000, 0, 0, |
| 175 | "Qualified success"}, |
| 176 | {0x01080000, 1, 1, |
| 177 | "FFFE: Soft device bus error recovered by the IOA"}, |
Brian King | 896bbd2 | 2006-08-02 14:57:44 -0500 | [diff] [blame^] | 178 | {0x01088100, 0, 1, |
| 179 | "4101: Soft device bus fabric error"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 180 | {0x01170600, 0, 1, |
| 181 | "FFF9: Device sector reassign successful"}, |
| 182 | {0x01170900, 0, 1, |
| 183 | "FFF7: Media error recovered by device rewrite procedures"}, |
| 184 | {0x01180200, 0, 1, |
| 185 | "7001: IOA sector reassignment successful"}, |
| 186 | {0x01180500, 0, 1, |
| 187 | "FFF9: Soft media error. Sector reassignment recommended"}, |
| 188 | {0x01180600, 0, 1, |
| 189 | "FFF7: Media error recovered by IOA rewrite procedures"}, |
| 190 | {0x01418000, 0, 1, |
| 191 | "FF3D: Soft PCI bus error recovered by the IOA"}, |
| 192 | {0x01440000, 1, 1, |
| 193 | "FFF6: Device hardware error recovered by the IOA"}, |
| 194 | {0x01448100, 0, 1, |
| 195 | "FFF6: Device hardware error recovered by the device"}, |
| 196 | {0x01448200, 1, 1, |
| 197 | "FF3D: Soft IOA error recovered by the IOA"}, |
| 198 | {0x01448300, 0, 1, |
| 199 | "FFFA: Undefined device response recovered by the IOA"}, |
| 200 | {0x014A0000, 1, 1, |
| 201 | "FFF6: Device bus error, message or command phase"}, |
| 202 | {0x015D0000, 0, 1, |
| 203 | "FFF6: Failure prediction threshold exceeded"}, |
| 204 | {0x015D9200, 0, 1, |
| 205 | "8009: Impending cache battery pack failure"}, |
| 206 | {0x02040400, 0, 0, |
| 207 | "34FF: Disk device format in progress"}, |
| 208 | {0x023F0000, 0, 0, |
| 209 | "Synchronization required"}, |
| 210 | {0x024E0000, 0, 0, |
| 211 | "No ready, IOA shutdown"}, |
| 212 | {0x025A0000, 0, 0, |
| 213 | "Not ready, IOA has been shutdown"}, |
| 214 | {0x02670100, 0, 1, |
| 215 | "3020: Storage subsystem configuration error"}, |
| 216 | {0x03110B00, 0, 0, |
| 217 | "FFF5: Medium error, data unreadable, recommend reassign"}, |
| 218 | {0x03110C00, 0, 0, |
| 219 | "7000: Medium error, data unreadable, do not reassign"}, |
| 220 | {0x03310000, 0, 1, |
| 221 | "FFF3: Disk media format bad"}, |
| 222 | {0x04050000, 0, 1, |
| 223 | "3002: Addressed device failed to respond to selection"}, |
| 224 | {0x04080000, 1, 1, |
| 225 | "3100: Device bus error"}, |
| 226 | {0x04080100, 0, 1, |
| 227 | "3109: IOA timed out a device command"}, |
| 228 | {0x04088000, 0, 0, |
| 229 | "3120: SCSI bus is not operational"}, |
Brian King | 896bbd2 | 2006-08-02 14:57:44 -0500 | [diff] [blame^] | 230 | {0x04088100, 0, 1, |
| 231 | "4100: Hard device bus fabric error"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | {0x04118000, 0, 1, |
| 233 | "9000: IOA reserved area data check"}, |
| 234 | {0x04118100, 0, 1, |
| 235 | "9001: IOA reserved area invalid data pattern"}, |
| 236 | {0x04118200, 0, 1, |
| 237 | "9002: IOA reserved area LRC error"}, |
| 238 | {0x04320000, 0, 1, |
| 239 | "102E: Out of alternate sectors for disk storage"}, |
| 240 | {0x04330000, 1, 1, |
| 241 | "FFF4: Data transfer underlength error"}, |
| 242 | {0x04338000, 1, 1, |
| 243 | "FFF4: Data transfer overlength error"}, |
| 244 | {0x043E0100, 0, 1, |
| 245 | "3400: Logical unit failure"}, |
| 246 | {0x04408500, 0, 1, |
| 247 | "FFF4: Device microcode is corrupt"}, |
| 248 | {0x04418000, 1, 1, |
| 249 | "8150: PCI bus error"}, |
| 250 | {0x04430000, 1, 0, |
| 251 | "Unsupported device bus message received"}, |
| 252 | {0x04440000, 1, 1, |
| 253 | "FFF4: Disk device problem"}, |
| 254 | {0x04448200, 1, 1, |
| 255 | "8150: Permanent IOA failure"}, |
| 256 | {0x04448300, 0, 1, |
| 257 | "3010: Disk device returned wrong response to IOA"}, |
| 258 | {0x04448400, 0, 1, |
| 259 | "8151: IOA microcode error"}, |
| 260 | {0x04448500, 0, 0, |
| 261 | "Device bus status error"}, |
| 262 | {0x04448600, 0, 1, |
| 263 | "8157: IOA error requiring IOA reset to recover"}, |
| 264 | {0x04490000, 0, 0, |
| 265 | "Message reject received from the device"}, |
| 266 | {0x04449200, 0, 1, |
| 267 | "8008: A permanent cache battery pack failure occurred"}, |
| 268 | {0x0444A000, 0, 1, |
| 269 | "9090: Disk unit has been modified after the last known status"}, |
| 270 | {0x0444A200, 0, 1, |
| 271 | "9081: IOA detected device error"}, |
| 272 | {0x0444A300, 0, 1, |
| 273 | "9082: IOA detected device error"}, |
| 274 | {0x044A0000, 1, 1, |
| 275 | "3110: Device bus error, message or command phase"}, |
| 276 | {0x04670400, 0, 1, |
| 277 | "9091: Incorrect hardware configuration change has been detected"}, |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 278 | {0x04678000, 0, 1, |
| 279 | "9073: Invalid multi-adapter configuration"}, |
Brian King | 896bbd2 | 2006-08-02 14:57:44 -0500 | [diff] [blame^] | 280 | {0x04678100, 0, 1, |
| 281 | "4010: Incorrect connection between cascaded expanders"}, |
| 282 | {0x04678200, 0, 1, |
| 283 | "4020: Connections exceed IOA design limits"}, |
| 284 | {0x04678300, 0, 1, |
| 285 | "4030: Incorrect multipath connection"}, |
| 286 | {0x04679000, 0, 1, |
| 287 | "4110: Unsupported enclosure function"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | {0x046E0000, 0, 1, |
| 289 | "FFF4: Command to logical unit failed"}, |
| 290 | {0x05240000, 1, 0, |
| 291 | "Illegal request, invalid request type or request packet"}, |
| 292 | {0x05250000, 0, 0, |
| 293 | "Illegal request, invalid resource handle"}, |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 294 | {0x05258000, 0, 0, |
| 295 | "Illegal request, commands not allowed to this device"}, |
| 296 | {0x05258100, 0, 0, |
| 297 | "Illegal request, command not allowed to a secondary adapter"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 298 | {0x05260000, 0, 0, |
| 299 | "Illegal request, invalid field in parameter list"}, |
| 300 | {0x05260100, 0, 0, |
| 301 | "Illegal request, parameter not supported"}, |
| 302 | {0x05260200, 0, 0, |
| 303 | "Illegal request, parameter value invalid"}, |
| 304 | {0x052C0000, 0, 0, |
| 305 | "Illegal request, command sequence error"}, |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 306 | {0x052C8000, 1, 0, |
| 307 | "Illegal request, dual adapter support not enabled"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | {0x06040500, 0, 1, |
| 309 | "9031: Array protection temporarily suspended, protection resuming"}, |
| 310 | {0x06040600, 0, 1, |
| 311 | "9040: Array protection temporarily suspended, protection resuming"}, |
Brian King | 896bbd2 | 2006-08-02 14:57:44 -0500 | [diff] [blame^] | 312 | {0x06288000, 0, 1, |
| 313 | "3140: Device bus not ready to ready transition"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | {0x06290000, 0, 1, |
| 315 | "FFFB: SCSI bus was reset"}, |
| 316 | {0x06290500, 0, 0, |
| 317 | "FFFE: SCSI bus transition to single ended"}, |
| 318 | {0x06290600, 0, 0, |
| 319 | "FFFE: SCSI bus transition to LVD"}, |
| 320 | {0x06298000, 0, 1, |
| 321 | "FFFB: SCSI bus was reset by another initiator"}, |
| 322 | {0x063F0300, 0, 1, |
| 323 | "3029: A device replacement has occurred"}, |
| 324 | {0x064C8000, 0, 1, |
| 325 | "9051: IOA cache data exists for a missing or failed device"}, |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 326 | {0x064C8100, 0, 1, |
| 327 | "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | {0x06670100, 0, 1, |
| 329 | "9025: Disk unit is not supported at its physical location"}, |
| 330 | {0x06670600, 0, 1, |
| 331 | "3020: IOA detected a SCSI bus configuration error"}, |
| 332 | {0x06678000, 0, 1, |
| 333 | "3150: SCSI bus configuration error"}, |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 334 | {0x06678100, 0, 1, |
| 335 | "9074: Asymmetric advanced function disk configuration"}, |
Brian King | 896bbd2 | 2006-08-02 14:57:44 -0500 | [diff] [blame^] | 336 | {0x06678300, 0, 1, |
| 337 | "4040: Incomplete multipath connection between IOA and enclosure"}, |
| 338 | {0x06678400, 0, 1, |
| 339 | "4041: Incomplete multipath connection between enclosure and device"}, |
| 340 | {0x06678500, 0, 1, |
| 341 | "9075: Incomplete multipath connection between IOA and remote IOA"}, |
| 342 | {0x06678600, 0, 1, |
| 343 | "9076: Configuration error, missing remote IOA"}, |
| 344 | {0x06679100, 0, 1, |
| 345 | "4050: Enclosure does not support a required multipath function"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | {0x06690200, 0, 1, |
| 347 | "9041: Array protection temporarily suspended"}, |
| 348 | {0x06698200, 0, 1, |
| 349 | "9042: Corrupt array parity detected on specified device"}, |
| 350 | {0x066B0200, 0, 1, |
| 351 | "9030: Array no longer protected due to missing or failed disk unit"}, |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 352 | {0x066B8000, 0, 1, |
| 353 | "9071: Link operational transition"}, |
| 354 | {0x066B8100, 0, 1, |
| 355 | "9072: Link not operational transition"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | {0x066B8200, 0, 1, |
| 357 | "9032: Array exposed but still protected"}, |
Brian King | 896bbd2 | 2006-08-02 14:57:44 -0500 | [diff] [blame^] | 358 | {0x066B9100, 0, 1, |
| 359 | "4061: Multipath redundancy level got better"}, |
| 360 | {0x066B9200, 0, 1, |
| 361 | "4060: Multipath redundancy level got worse"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | {0x07270000, 0, 0, |
| 363 | "Failure due to other device"}, |
| 364 | {0x07278000, 0, 1, |
| 365 | "9008: IOA does not support functions expected by devices"}, |
| 366 | {0x07278100, 0, 1, |
| 367 | "9010: Cache data associated with attached devices cannot be found"}, |
| 368 | {0x07278200, 0, 1, |
| 369 | "9011: Cache data belongs to devices other than those attached"}, |
| 370 | {0x07278400, 0, 1, |
| 371 | "9020: Array missing 2 or more devices with only 1 device present"}, |
| 372 | {0x07278500, 0, 1, |
| 373 | "9021: Array missing 2 or more devices with 2 or more devices present"}, |
| 374 | {0x07278600, 0, 1, |
| 375 | "9022: Exposed array is missing a required device"}, |
| 376 | {0x07278700, 0, 1, |
| 377 | "9023: Array member(s) not at required physical locations"}, |
| 378 | {0x07278800, 0, 1, |
| 379 | "9024: Array not functional due to present hardware configuration"}, |
| 380 | {0x07278900, 0, 1, |
| 381 | "9026: Array not functional due to present hardware configuration"}, |
| 382 | {0x07278A00, 0, 1, |
| 383 | "9027: Array is missing a device and parity is out of sync"}, |
| 384 | {0x07278B00, 0, 1, |
| 385 | "9028: Maximum number of arrays already exist"}, |
| 386 | {0x07278C00, 0, 1, |
| 387 | "9050: Required cache data cannot be located for a disk unit"}, |
| 388 | {0x07278D00, 0, 1, |
| 389 | "9052: Cache data exists for a device that has been modified"}, |
| 390 | {0x07278F00, 0, 1, |
| 391 | "9054: IOA resources not available due to previous problems"}, |
| 392 | {0x07279100, 0, 1, |
| 393 | "9092: Disk unit requires initialization before use"}, |
| 394 | {0x07279200, 0, 1, |
| 395 | "9029: Incorrect hardware configuration change has been detected"}, |
| 396 | {0x07279600, 0, 1, |
| 397 | "9060: One or more disk pairs are missing from an array"}, |
| 398 | {0x07279700, 0, 1, |
| 399 | "9061: One or more disks are missing from an array"}, |
| 400 | {0x07279800, 0, 1, |
| 401 | "9062: One or more disks are missing from an array"}, |
| 402 | {0x07279900, 0, 1, |
| 403 | "9063: Maximum number of functional arrays has been exceeded"}, |
| 404 | {0x0B260000, 0, 0, |
| 405 | "Aborted command, invalid descriptor"}, |
| 406 | {0x0B5A0000, 0, 0, |
| 407 | "Command terminated by host"} |
| 408 | }; |
| 409 | |
| 410 | static const struct ipr_ses_table_entry ipr_ses_table[] = { |
| 411 | { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 }, |
| 412 | { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 }, |
| 413 | { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */ |
| 414 | { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */ |
| 415 | { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */ |
| 416 | { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */ |
| 417 | { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 }, |
| 418 | { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 }, |
| 419 | { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, |
| 420 | { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, |
| 421 | { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 }, |
| 422 | { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 }, |
| 423 | { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 } |
| 424 | }; |
| 425 | |
| 426 | /* |
| 427 | * Function Prototypes |
| 428 | */ |
| 429 | static int ipr_reset_alert(struct ipr_cmnd *); |
| 430 | static void ipr_process_ccn(struct ipr_cmnd *); |
| 431 | static void ipr_process_error(struct ipr_cmnd *); |
| 432 | static void ipr_reset_ioa_job(struct ipr_cmnd *); |
| 433 | static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *, |
| 434 | enum ipr_shutdown_type); |
| 435 | |
| 436 | #ifdef CONFIG_SCSI_IPR_TRACE |
| 437 | /** |
| 438 | * ipr_trc_hook - Add a trace entry to the driver trace |
| 439 | * @ipr_cmd: ipr command struct |
| 440 | * @type: trace type |
| 441 | * @add_data: additional data |
| 442 | * |
| 443 | * Return value: |
| 444 | * none |
| 445 | **/ |
| 446 | static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd, |
| 447 | u8 type, u32 add_data) |
| 448 | { |
| 449 | struct ipr_trace_entry *trace_entry; |
| 450 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 451 | |
| 452 | trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++]; |
| 453 | trace_entry->time = jiffies; |
| 454 | trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0]; |
| 455 | trace_entry->type = type; |
| 456 | trace_entry->cmd_index = ipr_cmd->cmd_index; |
| 457 | trace_entry->res_handle = ipr_cmd->ioarcb.res_handle; |
| 458 | trace_entry->u.add_data = add_data; |
| 459 | } |
| 460 | #else |
| 461 | #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0) |
| 462 | #endif |
| 463 | |
| 464 | /** |
| 465 | * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse |
| 466 | * @ipr_cmd: ipr command struct |
| 467 | * |
| 468 | * Return value: |
| 469 | * none |
| 470 | **/ |
| 471 | static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd) |
| 472 | { |
| 473 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
| 474 | struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; |
| 475 | |
| 476 | memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); |
| 477 | ioarcb->write_data_transfer_length = 0; |
| 478 | ioarcb->read_data_transfer_length = 0; |
| 479 | ioarcb->write_ioadl_len = 0; |
| 480 | ioarcb->read_ioadl_len = 0; |
| 481 | ioasa->ioasc = 0; |
| 482 | ioasa->residual_data_len = 0; |
| 483 | |
| 484 | ipr_cmd->scsi_cmd = NULL; |
| 485 | ipr_cmd->sense_buffer[0] = 0; |
| 486 | ipr_cmd->dma_use_sg = 0; |
| 487 | } |
| 488 | |
| 489 | /** |
| 490 | * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block |
| 491 | * @ipr_cmd: ipr command struct |
| 492 | * |
| 493 | * Return value: |
| 494 | * none |
| 495 | **/ |
| 496 | static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd) |
| 497 | { |
| 498 | ipr_reinit_ipr_cmnd(ipr_cmd); |
| 499 | ipr_cmd->u.scratch = 0; |
| 500 | ipr_cmd->sibling = NULL; |
| 501 | init_timer(&ipr_cmd->timer); |
| 502 | } |
| 503 | |
| 504 | /** |
| 505 | * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block |
| 506 | * @ioa_cfg: ioa config struct |
| 507 | * |
| 508 | * Return value: |
| 509 | * pointer to ipr command struct |
| 510 | **/ |
| 511 | static |
| 512 | struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg) |
| 513 | { |
| 514 | struct ipr_cmnd *ipr_cmd; |
| 515 | |
| 516 | ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue); |
| 517 | list_del(&ipr_cmd->queue); |
| 518 | ipr_init_ipr_cmnd(ipr_cmd); |
| 519 | |
| 520 | return ipr_cmd; |
| 521 | } |
| 522 | |
| 523 | /** |
| 524 | * ipr_unmap_sglist - Unmap scatterlist if mapped |
| 525 | * @ioa_cfg: ioa config struct |
| 526 | * @ipr_cmd: ipr command struct |
| 527 | * |
| 528 | * Return value: |
| 529 | * nothing |
| 530 | **/ |
| 531 | static void ipr_unmap_sglist(struct ipr_ioa_cfg *ioa_cfg, |
| 532 | struct ipr_cmnd *ipr_cmd) |
| 533 | { |
| 534 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
| 535 | |
| 536 | if (ipr_cmd->dma_use_sg) { |
| 537 | if (scsi_cmd->use_sg > 0) { |
| 538 | pci_unmap_sg(ioa_cfg->pdev, scsi_cmd->request_buffer, |
| 539 | scsi_cmd->use_sg, |
| 540 | scsi_cmd->sc_data_direction); |
| 541 | } else { |
| 542 | pci_unmap_single(ioa_cfg->pdev, ipr_cmd->dma_handle, |
| 543 | scsi_cmd->request_bufflen, |
| 544 | scsi_cmd->sc_data_direction); |
| 545 | } |
| 546 | } |
| 547 | } |
| 548 | |
| 549 | /** |
| 550 | * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts |
| 551 | * @ioa_cfg: ioa config struct |
| 552 | * @clr_ints: interrupts to clear |
| 553 | * |
| 554 | * This function masks all interrupts on the adapter, then clears the |
| 555 | * interrupts specified in the mask |
| 556 | * |
| 557 | * Return value: |
| 558 | * none |
| 559 | **/ |
| 560 | static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg, |
| 561 | u32 clr_ints) |
| 562 | { |
| 563 | volatile u32 int_reg; |
| 564 | |
| 565 | /* Stop new interrupts */ |
| 566 | ioa_cfg->allow_interrupts = 0; |
| 567 | |
| 568 | /* Set interrupt mask to stop all new interrupts */ |
| 569 | writel(~0, ioa_cfg->regs.set_interrupt_mask_reg); |
| 570 | |
| 571 | /* Clear any pending interrupts */ |
| 572 | writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg); |
| 573 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); |
| 574 | } |
| 575 | |
| 576 | /** |
| 577 | * ipr_save_pcix_cmd_reg - Save PCI-X command register |
| 578 | * @ioa_cfg: ioa config struct |
| 579 | * |
| 580 | * Return value: |
| 581 | * 0 on success / -EIO on failure |
| 582 | **/ |
| 583 | static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) |
| 584 | { |
| 585 | int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); |
| 586 | |
| 587 | if (pcix_cmd_reg == 0) { |
| 588 | dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); |
| 589 | return -EIO; |
| 590 | } |
| 591 | |
| 592 | if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, |
| 593 | &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { |
| 594 | dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); |
| 595 | return -EIO; |
| 596 | } |
| 597 | |
| 598 | ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO; |
| 599 | return 0; |
| 600 | } |
| 601 | |
| 602 | /** |
| 603 | * ipr_set_pcix_cmd_reg - Setup PCI-X command register |
| 604 | * @ioa_cfg: ioa config struct |
| 605 | * |
| 606 | * Return value: |
| 607 | * 0 on success / -EIO on failure |
| 608 | **/ |
| 609 | static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) |
| 610 | { |
| 611 | int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); |
| 612 | |
| 613 | if (pcix_cmd_reg) { |
| 614 | if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, |
| 615 | ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { |
| 616 | dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n"); |
| 617 | return -EIO; |
| 618 | } |
| 619 | } else { |
| 620 | dev_err(&ioa_cfg->pdev->dev, |
| 621 | "Failed to setup PCI-X command register\n"); |
| 622 | return -EIO; |
| 623 | } |
| 624 | |
| 625 | return 0; |
| 626 | } |
| 627 | |
| 628 | /** |
| 629 | * ipr_scsi_eh_done - mid-layer done function for aborted ops |
| 630 | * @ipr_cmd: ipr command struct |
| 631 | * |
| 632 | * This function is invoked by the interrupt handler for |
| 633 | * ops generated by the SCSI mid-layer which are being aborted. |
| 634 | * |
| 635 | * Return value: |
| 636 | * none |
| 637 | **/ |
| 638 | static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) |
| 639 | { |
| 640 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 641 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
| 642 | |
| 643 | scsi_cmd->result |= (DID_ERROR << 16); |
| 644 | |
| 645 | ipr_unmap_sglist(ioa_cfg, ipr_cmd); |
| 646 | scsi_cmd->scsi_done(scsi_cmd); |
| 647 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); |
| 648 | } |
| 649 | |
| 650 | /** |
| 651 | * ipr_fail_all_ops - Fails all outstanding ops. |
| 652 | * @ioa_cfg: ioa config struct |
| 653 | * |
| 654 | * This function fails all outstanding ops. |
| 655 | * |
| 656 | * Return value: |
| 657 | * none |
| 658 | **/ |
| 659 | static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg) |
| 660 | { |
| 661 | struct ipr_cmnd *ipr_cmd, *temp; |
| 662 | |
| 663 | ENTER; |
| 664 | list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) { |
| 665 | list_del(&ipr_cmd->queue); |
| 666 | |
| 667 | ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET); |
| 668 | ipr_cmd->ioasa.ilid = cpu_to_be32(IPR_DRIVER_ILID); |
| 669 | |
| 670 | if (ipr_cmd->scsi_cmd) |
| 671 | ipr_cmd->done = ipr_scsi_eh_done; |
| 672 | |
| 673 | ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET); |
| 674 | del_timer(&ipr_cmd->timer); |
| 675 | ipr_cmd->done(ipr_cmd); |
| 676 | } |
| 677 | |
| 678 | LEAVE; |
| 679 | } |
| 680 | |
| 681 | /** |
| 682 | * ipr_do_req - Send driver initiated requests. |
| 683 | * @ipr_cmd: ipr command struct |
| 684 | * @done: done function |
| 685 | * @timeout_func: timeout function |
| 686 | * @timeout: timeout value |
| 687 | * |
| 688 | * This function sends the specified command to the adapter with the |
| 689 | * timeout given. The done function is invoked on command completion. |
| 690 | * |
| 691 | * Return value: |
| 692 | * none |
| 693 | **/ |
| 694 | static void ipr_do_req(struct ipr_cmnd *ipr_cmd, |
| 695 | void (*done) (struct ipr_cmnd *), |
| 696 | void (*timeout_func) (struct ipr_cmnd *), u32 timeout) |
| 697 | { |
| 698 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 699 | |
| 700 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); |
| 701 | |
| 702 | ipr_cmd->done = done; |
| 703 | |
| 704 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; |
| 705 | ipr_cmd->timer.expires = jiffies + timeout; |
| 706 | ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func; |
| 707 | |
| 708 | add_timer(&ipr_cmd->timer); |
| 709 | |
| 710 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0); |
| 711 | |
| 712 | mb(); |
| 713 | writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), |
| 714 | ioa_cfg->regs.ioarrin_reg); |
| 715 | } |
| 716 | |
| 717 | /** |
| 718 | * ipr_internal_cmd_done - Op done function for an internally generated op. |
| 719 | * @ipr_cmd: ipr command struct |
| 720 | * |
| 721 | * This function is the op done function for an internally generated, |
| 722 | * blocking op. It simply wakes the sleeping thread. |
| 723 | * |
| 724 | * Return value: |
| 725 | * none |
| 726 | **/ |
| 727 | static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd) |
| 728 | { |
| 729 | if (ipr_cmd->sibling) |
| 730 | ipr_cmd->sibling = NULL; |
| 731 | else |
| 732 | complete(&ipr_cmd->completion); |
| 733 | } |
| 734 | |
| 735 | /** |
| 736 | * ipr_send_blocking_cmd - Send command and sleep on its completion. |
| 737 | * @ipr_cmd: ipr command struct |
| 738 | * @timeout_func: function to invoke if command times out |
| 739 | * @timeout: timeout |
| 740 | * |
| 741 | * Return value: |
| 742 | * none |
| 743 | **/ |
| 744 | static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd, |
| 745 | void (*timeout_func) (struct ipr_cmnd *ipr_cmd), |
| 746 | u32 timeout) |
| 747 | { |
| 748 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 749 | |
| 750 | init_completion(&ipr_cmd->completion); |
| 751 | ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout); |
| 752 | |
| 753 | spin_unlock_irq(ioa_cfg->host->host_lock); |
| 754 | wait_for_completion(&ipr_cmd->completion); |
| 755 | spin_lock_irq(ioa_cfg->host->host_lock); |
| 756 | } |
| 757 | |
| 758 | /** |
| 759 | * ipr_send_hcam - Send an HCAM to the adapter. |
| 760 | * @ioa_cfg: ioa config struct |
| 761 | * @type: HCAM type |
| 762 | * @hostrcb: hostrcb struct |
| 763 | * |
| 764 | * This function will send a Host Controlled Async command to the adapter. |
| 765 | * If HCAMs are currently not allowed to be issued to the adapter, it will |
| 766 | * place the hostrcb on the free queue. |
| 767 | * |
| 768 | * Return value: |
| 769 | * none |
| 770 | **/ |
| 771 | static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type, |
| 772 | struct ipr_hostrcb *hostrcb) |
| 773 | { |
| 774 | struct ipr_cmnd *ipr_cmd; |
| 775 | struct ipr_ioarcb *ioarcb; |
| 776 | |
| 777 | if (ioa_cfg->allow_cmds) { |
| 778 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
| 779 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); |
| 780 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q); |
| 781 | |
| 782 | ipr_cmd->u.hostrcb = hostrcb; |
| 783 | ioarcb = &ipr_cmd->ioarcb; |
| 784 | |
| 785 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
| 786 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM; |
| 787 | ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC; |
| 788 | ioarcb->cmd_pkt.cdb[1] = type; |
| 789 | ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff; |
| 790 | ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff; |
| 791 | |
| 792 | ioarcb->read_data_transfer_length = cpu_to_be32(sizeof(hostrcb->hcam)); |
| 793 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); |
| 794 | ipr_cmd->ioadl[0].flags_and_data_len = |
| 795 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(hostrcb->hcam)); |
| 796 | ipr_cmd->ioadl[0].address = cpu_to_be32(hostrcb->hostrcb_dma); |
| 797 | |
| 798 | if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE) |
| 799 | ipr_cmd->done = ipr_process_ccn; |
| 800 | else |
| 801 | ipr_cmd->done = ipr_process_error; |
| 802 | |
| 803 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR); |
| 804 | |
| 805 | mb(); |
| 806 | writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), |
| 807 | ioa_cfg->regs.ioarrin_reg); |
| 808 | } else { |
| 809 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); |
| 810 | } |
| 811 | } |
| 812 | |
| 813 | /** |
| 814 | * ipr_init_res_entry - Initialize a resource entry struct. |
| 815 | * @res: resource entry struct |
| 816 | * |
| 817 | * Return value: |
| 818 | * none |
| 819 | **/ |
| 820 | static void ipr_init_res_entry(struct ipr_resource_entry *res) |
| 821 | { |
brking@us.ibm.com | ee0a90f | 2005-11-01 17:02:22 -0600 | [diff] [blame] | 822 | res->needs_sync_complete = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 823 | res->in_erp = 0; |
| 824 | res->add_to_ml = 0; |
| 825 | res->del_from_ml = 0; |
| 826 | res->resetting_device = 0; |
| 827 | res->sdev = NULL; |
| 828 | } |
| 829 | |
| 830 | /** |
| 831 | * ipr_handle_config_change - Handle a config change from the adapter |
| 832 | * @ioa_cfg: ioa config struct |
| 833 | * @hostrcb: hostrcb |
| 834 | * |
| 835 | * Return value: |
| 836 | * none |
| 837 | **/ |
| 838 | static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg, |
| 839 | struct ipr_hostrcb *hostrcb) |
| 840 | { |
| 841 | struct ipr_resource_entry *res = NULL; |
| 842 | struct ipr_config_table_entry *cfgte; |
| 843 | u32 is_ndn = 1; |
| 844 | |
| 845 | cfgte = &hostrcb->hcam.u.ccn.cfgte; |
| 846 | |
| 847 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
| 848 | if (!memcmp(&res->cfgte.res_addr, &cfgte->res_addr, |
| 849 | sizeof(cfgte->res_addr))) { |
| 850 | is_ndn = 0; |
| 851 | break; |
| 852 | } |
| 853 | } |
| 854 | |
| 855 | if (is_ndn) { |
| 856 | if (list_empty(&ioa_cfg->free_res_q)) { |
| 857 | ipr_send_hcam(ioa_cfg, |
| 858 | IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, |
| 859 | hostrcb); |
| 860 | return; |
| 861 | } |
| 862 | |
| 863 | res = list_entry(ioa_cfg->free_res_q.next, |
| 864 | struct ipr_resource_entry, queue); |
| 865 | |
| 866 | list_del(&res->queue); |
| 867 | ipr_init_res_entry(res); |
| 868 | list_add_tail(&res->queue, &ioa_cfg->used_res_q); |
| 869 | } |
| 870 | |
| 871 | memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry)); |
| 872 | |
| 873 | if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) { |
| 874 | if (res->sdev) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 875 | res->del_from_ml = 1; |
Brian King | 1121b79 | 2006-03-29 09:37:16 -0600 | [diff] [blame] | 876 | res->cfgte.res_handle = IPR_INVALID_RES_HANDLE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 877 | if (ioa_cfg->allow_ml_add_del) |
| 878 | schedule_work(&ioa_cfg->work_q); |
| 879 | } else |
| 880 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); |
| 881 | } else if (!res->sdev) { |
| 882 | res->add_to_ml = 1; |
| 883 | if (ioa_cfg->allow_ml_add_del) |
| 884 | schedule_work(&ioa_cfg->work_q); |
| 885 | } |
| 886 | |
| 887 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); |
| 888 | } |
| 889 | |
| 890 | /** |
| 891 | * ipr_process_ccn - Op done function for a CCN. |
| 892 | * @ipr_cmd: ipr command struct |
| 893 | * |
| 894 | * This function is the op done function for a configuration |
| 895 | * change notification host controlled async from the adapter. |
| 896 | * |
| 897 | * Return value: |
| 898 | * none |
| 899 | **/ |
| 900 | static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd) |
| 901 | { |
| 902 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 903 | struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; |
| 904 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); |
| 905 | |
| 906 | list_del(&hostrcb->queue); |
| 907 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); |
| 908 | |
| 909 | if (ioasc) { |
| 910 | if (ioasc != IPR_IOASC_IOA_WAS_RESET) |
| 911 | dev_err(&ioa_cfg->pdev->dev, |
| 912 | "Host RCB failed with IOASC: 0x%08X\n", ioasc); |
| 913 | |
| 914 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); |
| 915 | } else { |
| 916 | ipr_handle_config_change(ioa_cfg, hostrcb); |
| 917 | } |
| 918 | } |
| 919 | |
| 920 | /** |
| 921 | * ipr_log_vpd - Log the passed VPD to the error log. |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 922 | * @vpd: vendor/product id/sn struct |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 923 | * |
| 924 | * Return value: |
| 925 | * none |
| 926 | **/ |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 927 | static void ipr_log_vpd(struct ipr_vpd *vpd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 928 | { |
| 929 | char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN |
| 930 | + IPR_SERIAL_NUM_LEN]; |
| 931 | |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 932 | memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); |
| 933 | memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 934 | IPR_PROD_ID_LEN); |
| 935 | buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0'; |
| 936 | ipr_err("Vendor/Product ID: %s\n", buffer); |
| 937 | |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 938 | memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 939 | buffer[IPR_SERIAL_NUM_LEN] = '\0'; |
| 940 | ipr_err(" Serial Number: %s\n", buffer); |
| 941 | } |
| 942 | |
| 943 | /** |
brking@us.ibm.com | ee0f05b | 2005-11-01 17:02:15 -0600 | [diff] [blame] | 944 | * ipr_log_ext_vpd - Log the passed extended VPD to the error log. |
| 945 | * @vpd: vendor/product id/sn/wwn struct |
| 946 | * |
| 947 | * Return value: |
| 948 | * none |
| 949 | **/ |
| 950 | static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd) |
| 951 | { |
| 952 | ipr_log_vpd(&vpd->vpd); |
| 953 | ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]), |
| 954 | be32_to_cpu(vpd->wwid[1])); |
| 955 | } |
| 956 | |
| 957 | /** |
| 958 | * ipr_log_enhanced_cache_error - Log a cache error. |
| 959 | * @ioa_cfg: ioa config struct |
| 960 | * @hostrcb: hostrcb struct |
| 961 | * |
| 962 | * Return value: |
| 963 | * none |
| 964 | **/ |
| 965 | static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg, |
| 966 | struct ipr_hostrcb *hostrcb) |
| 967 | { |
| 968 | struct ipr_hostrcb_type_12_error *error = |
| 969 | &hostrcb->hcam.u.error.u.type_12_error; |
| 970 | |
| 971 | ipr_err("-----Current Configuration-----\n"); |
| 972 | ipr_err("Cache Directory Card Information:\n"); |
| 973 | ipr_log_ext_vpd(&error->ioa_vpd); |
| 974 | ipr_err("Adapter Card Information:\n"); |
| 975 | ipr_log_ext_vpd(&error->cfc_vpd); |
| 976 | |
| 977 | ipr_err("-----Expected Configuration-----\n"); |
| 978 | ipr_err("Cache Directory Card Information:\n"); |
| 979 | ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd); |
| 980 | ipr_err("Adapter Card Information:\n"); |
| 981 | ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd); |
| 982 | |
| 983 | ipr_err("Additional IOA Data: %08X %08X %08X\n", |
| 984 | be32_to_cpu(error->ioa_data[0]), |
| 985 | be32_to_cpu(error->ioa_data[1]), |
| 986 | be32_to_cpu(error->ioa_data[2])); |
| 987 | } |
| 988 | |
| 989 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 990 | * ipr_log_cache_error - Log a cache error. |
| 991 | * @ioa_cfg: ioa config struct |
| 992 | * @hostrcb: hostrcb struct |
| 993 | * |
| 994 | * Return value: |
| 995 | * none |
| 996 | **/ |
| 997 | static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg, |
| 998 | struct ipr_hostrcb *hostrcb) |
| 999 | { |
| 1000 | struct ipr_hostrcb_type_02_error *error = |
| 1001 | &hostrcb->hcam.u.error.u.type_02_error; |
| 1002 | |
| 1003 | ipr_err("-----Current Configuration-----\n"); |
| 1004 | ipr_err("Cache Directory Card Information:\n"); |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1005 | ipr_log_vpd(&error->ioa_vpd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1006 | ipr_err("Adapter Card Information:\n"); |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1007 | ipr_log_vpd(&error->cfc_vpd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1008 | |
| 1009 | ipr_err("-----Expected Configuration-----\n"); |
| 1010 | ipr_err("Cache Directory Card Information:\n"); |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1011 | ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1012 | ipr_err("Adapter Card Information:\n"); |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1013 | ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1014 | |
| 1015 | ipr_err("Additional IOA Data: %08X %08X %08X\n", |
| 1016 | be32_to_cpu(error->ioa_data[0]), |
| 1017 | be32_to_cpu(error->ioa_data[1]), |
| 1018 | be32_to_cpu(error->ioa_data[2])); |
| 1019 | } |
| 1020 | |
| 1021 | /** |
brking@us.ibm.com | ee0f05b | 2005-11-01 17:02:15 -0600 | [diff] [blame] | 1022 | * ipr_log_enhanced_config_error - Log a configuration error. |
| 1023 | * @ioa_cfg: ioa config struct |
| 1024 | * @hostrcb: hostrcb struct |
| 1025 | * |
| 1026 | * Return value: |
| 1027 | * none |
| 1028 | **/ |
| 1029 | static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg, |
| 1030 | struct ipr_hostrcb *hostrcb) |
| 1031 | { |
| 1032 | int errors_logged, i; |
| 1033 | struct ipr_hostrcb_device_data_entry_enhanced *dev_entry; |
| 1034 | struct ipr_hostrcb_type_13_error *error; |
| 1035 | |
| 1036 | error = &hostrcb->hcam.u.error.u.type_13_error; |
| 1037 | errors_logged = be32_to_cpu(error->errors_logged); |
| 1038 | |
| 1039 | ipr_err("Device Errors Detected/Logged: %d/%d\n", |
| 1040 | be32_to_cpu(error->errors_detected), errors_logged); |
| 1041 | |
| 1042 | dev_entry = error->dev; |
| 1043 | |
| 1044 | for (i = 0; i < errors_logged; i++, dev_entry++) { |
| 1045 | ipr_err_separator; |
| 1046 | |
| 1047 | ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); |
| 1048 | ipr_log_ext_vpd(&dev_entry->vpd); |
| 1049 | |
| 1050 | ipr_err("-----New Device Information-----\n"); |
| 1051 | ipr_log_ext_vpd(&dev_entry->new_vpd); |
| 1052 | |
| 1053 | ipr_err("Cache Directory Card Information:\n"); |
| 1054 | ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); |
| 1055 | |
| 1056 | ipr_err("Adapter Card Information:\n"); |
| 1057 | ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); |
| 1058 | } |
| 1059 | } |
| 1060 | |
| 1061 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1062 | * ipr_log_config_error - Log a configuration error. |
| 1063 | * @ioa_cfg: ioa config struct |
| 1064 | * @hostrcb: hostrcb struct |
| 1065 | * |
| 1066 | * Return value: |
| 1067 | * none |
| 1068 | **/ |
| 1069 | static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg, |
| 1070 | struct ipr_hostrcb *hostrcb) |
| 1071 | { |
| 1072 | int errors_logged, i; |
| 1073 | struct ipr_hostrcb_device_data_entry *dev_entry; |
| 1074 | struct ipr_hostrcb_type_03_error *error; |
| 1075 | |
| 1076 | error = &hostrcb->hcam.u.error.u.type_03_error; |
| 1077 | errors_logged = be32_to_cpu(error->errors_logged); |
| 1078 | |
| 1079 | ipr_err("Device Errors Detected/Logged: %d/%d\n", |
| 1080 | be32_to_cpu(error->errors_detected), errors_logged); |
| 1081 | |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1082 | dev_entry = error->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1083 | |
| 1084 | for (i = 0; i < errors_logged; i++, dev_entry++) { |
| 1085 | ipr_err_separator; |
| 1086 | |
brking@us.ibm.com | fa15b1f | 2005-11-01 17:00:27 -0600 | [diff] [blame] | 1087 | ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1088 | ipr_log_vpd(&dev_entry->vpd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1089 | |
| 1090 | ipr_err("-----New Device Information-----\n"); |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1091 | ipr_log_vpd(&dev_entry->new_vpd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1092 | |
| 1093 | ipr_err("Cache Directory Card Information:\n"); |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1094 | ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1095 | |
| 1096 | ipr_err("Adapter Card Information:\n"); |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1097 | ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1098 | |
| 1099 | ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n", |
| 1100 | be32_to_cpu(dev_entry->ioa_data[0]), |
| 1101 | be32_to_cpu(dev_entry->ioa_data[1]), |
| 1102 | be32_to_cpu(dev_entry->ioa_data[2]), |
| 1103 | be32_to_cpu(dev_entry->ioa_data[3]), |
| 1104 | be32_to_cpu(dev_entry->ioa_data[4])); |
| 1105 | } |
| 1106 | } |
| 1107 | |
| 1108 | /** |
brking@us.ibm.com | ee0f05b | 2005-11-01 17:02:15 -0600 | [diff] [blame] | 1109 | * ipr_log_enhanced_array_error - Log an array configuration error. |
| 1110 | * @ioa_cfg: ioa config struct |
| 1111 | * @hostrcb: hostrcb struct |
| 1112 | * |
| 1113 | * Return value: |
| 1114 | * none |
| 1115 | **/ |
| 1116 | static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg, |
| 1117 | struct ipr_hostrcb *hostrcb) |
| 1118 | { |
| 1119 | int i, num_entries; |
| 1120 | struct ipr_hostrcb_type_14_error *error; |
| 1121 | struct ipr_hostrcb_array_data_entry_enhanced *array_entry; |
| 1122 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; |
| 1123 | |
| 1124 | error = &hostrcb->hcam.u.error.u.type_14_error; |
| 1125 | |
| 1126 | ipr_err_separator; |
| 1127 | |
| 1128 | ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", |
| 1129 | error->protection_level, |
| 1130 | ioa_cfg->host->host_no, |
| 1131 | error->last_func_vset_res_addr.bus, |
| 1132 | error->last_func_vset_res_addr.target, |
| 1133 | error->last_func_vset_res_addr.lun); |
| 1134 | |
| 1135 | ipr_err_separator; |
| 1136 | |
| 1137 | array_entry = error->array_member; |
| 1138 | num_entries = min_t(u32, be32_to_cpu(error->num_entries), |
| 1139 | sizeof(error->array_member)); |
| 1140 | |
| 1141 | for (i = 0; i < num_entries; i++, array_entry++) { |
| 1142 | if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) |
| 1143 | continue; |
| 1144 | |
| 1145 | if (be32_to_cpu(error->exposed_mode_adn) == i) |
| 1146 | ipr_err("Exposed Array Member %d:\n", i); |
| 1147 | else |
| 1148 | ipr_err("Array Member %d:\n", i); |
| 1149 | |
| 1150 | ipr_log_ext_vpd(&array_entry->vpd); |
| 1151 | ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); |
| 1152 | ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, |
| 1153 | "Expected Location"); |
| 1154 | |
| 1155 | ipr_err_separator; |
| 1156 | } |
| 1157 | } |
| 1158 | |
| 1159 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1160 | * ipr_log_array_error - Log an array configuration error. |
| 1161 | * @ioa_cfg: ioa config struct |
| 1162 | * @hostrcb: hostrcb struct |
| 1163 | * |
| 1164 | * Return value: |
| 1165 | * none |
| 1166 | **/ |
| 1167 | static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg, |
| 1168 | struct ipr_hostrcb *hostrcb) |
| 1169 | { |
| 1170 | int i; |
| 1171 | struct ipr_hostrcb_type_04_error *error; |
| 1172 | struct ipr_hostrcb_array_data_entry *array_entry; |
| 1173 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; |
| 1174 | |
| 1175 | error = &hostrcb->hcam.u.error.u.type_04_error; |
| 1176 | |
| 1177 | ipr_err_separator; |
| 1178 | |
| 1179 | ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", |
| 1180 | error->protection_level, |
| 1181 | ioa_cfg->host->host_no, |
| 1182 | error->last_func_vset_res_addr.bus, |
| 1183 | error->last_func_vset_res_addr.target, |
| 1184 | error->last_func_vset_res_addr.lun); |
| 1185 | |
| 1186 | ipr_err_separator; |
| 1187 | |
| 1188 | array_entry = error->array_member; |
| 1189 | |
| 1190 | for (i = 0; i < 18; i++) { |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1191 | if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1192 | continue; |
| 1193 | |
brking@us.ibm.com | fa15b1f | 2005-11-01 17:00:27 -0600 | [diff] [blame] | 1194 | if (be32_to_cpu(error->exposed_mode_adn) == i) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1195 | ipr_err("Exposed Array Member %d:\n", i); |
brking@us.ibm.com | fa15b1f | 2005-11-01 17:00:27 -0600 | [diff] [blame] | 1196 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1197 | ipr_err("Array Member %d:\n", i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1198 | |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1199 | ipr_log_vpd(&array_entry->vpd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1200 | |
brking@us.ibm.com | fa15b1f | 2005-11-01 17:00:27 -0600 | [diff] [blame] | 1201 | ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); |
| 1202 | ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, |
| 1203 | "Expected Location"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1204 | |
| 1205 | ipr_err_separator; |
| 1206 | |
| 1207 | if (i == 9) |
| 1208 | array_entry = error->array_member2; |
| 1209 | else |
| 1210 | array_entry++; |
| 1211 | } |
| 1212 | } |
| 1213 | |
| 1214 | /** |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 1215 | * ipr_log_hex_data - Log additional hex IOA error data. |
| 1216 | * @data: IOA error data |
| 1217 | * @len: data length |
| 1218 | * |
| 1219 | * Return value: |
| 1220 | * none |
| 1221 | **/ |
| 1222 | static void ipr_log_hex_data(u32 *data, int len) |
| 1223 | { |
| 1224 | int i; |
| 1225 | |
| 1226 | if (len == 0) |
| 1227 | return; |
| 1228 | |
| 1229 | for (i = 0; i < len / 4; i += 4) { |
| 1230 | ipr_err("%08X: %08X %08X %08X %08X\n", i*4, |
| 1231 | be32_to_cpu(data[i]), |
| 1232 | be32_to_cpu(data[i+1]), |
| 1233 | be32_to_cpu(data[i+2]), |
| 1234 | be32_to_cpu(data[i+3])); |
| 1235 | } |
| 1236 | } |
| 1237 | |
| 1238 | /** |
brking@us.ibm.com | ee0f05b | 2005-11-01 17:02:15 -0600 | [diff] [blame] | 1239 | * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error. |
| 1240 | * @ioa_cfg: ioa config struct |
| 1241 | * @hostrcb: hostrcb struct |
| 1242 | * |
| 1243 | * Return value: |
| 1244 | * none |
| 1245 | **/ |
| 1246 | static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, |
| 1247 | struct ipr_hostrcb *hostrcb) |
| 1248 | { |
| 1249 | struct ipr_hostrcb_type_17_error *error; |
| 1250 | |
| 1251 | error = &hostrcb->hcam.u.error.u.type_17_error; |
| 1252 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; |
| 1253 | |
| 1254 | ipr_err("%s\n", error->failure_reason); |
| 1255 | ipr_err("Remote Adapter VPD:\n"); |
| 1256 | ipr_log_ext_vpd(&error->vpd); |
| 1257 | ipr_log_hex_data(error->data, |
| 1258 | be32_to_cpu(hostrcb->hcam.length) - |
| 1259 | (offsetof(struct ipr_hostrcb_error, u) + |
| 1260 | offsetof(struct ipr_hostrcb_type_17_error, data))); |
| 1261 | } |
| 1262 | |
| 1263 | /** |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 1264 | * ipr_log_dual_ioa_error - Log a dual adapter error. |
| 1265 | * @ioa_cfg: ioa config struct |
| 1266 | * @hostrcb: hostrcb struct |
| 1267 | * |
| 1268 | * Return value: |
| 1269 | * none |
| 1270 | **/ |
| 1271 | static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, |
| 1272 | struct ipr_hostrcb *hostrcb) |
| 1273 | { |
| 1274 | struct ipr_hostrcb_type_07_error *error; |
| 1275 | |
| 1276 | error = &hostrcb->hcam.u.error.u.type_07_error; |
| 1277 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; |
| 1278 | |
| 1279 | ipr_err("%s\n", error->failure_reason); |
| 1280 | ipr_err("Remote Adapter VPD:\n"); |
| 1281 | ipr_log_vpd(&error->vpd); |
| 1282 | ipr_log_hex_data(error->data, |
| 1283 | be32_to_cpu(hostrcb->hcam.length) - |
| 1284 | (offsetof(struct ipr_hostrcb_error, u) + |
| 1285 | offsetof(struct ipr_hostrcb_type_07_error, data))); |
| 1286 | } |
| 1287 | |
| 1288 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1289 | * ipr_log_generic_error - Log an adapter error. |
| 1290 | * @ioa_cfg: ioa config struct |
| 1291 | * @hostrcb: hostrcb struct |
| 1292 | * |
| 1293 | * Return value: |
| 1294 | * none |
| 1295 | **/ |
| 1296 | static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg, |
| 1297 | struct ipr_hostrcb *hostrcb) |
| 1298 | { |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 1299 | ipr_log_hex_data(hostrcb->hcam.u.raw.data, |
| 1300 | be32_to_cpu(hostrcb->hcam.length)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1301 | } |
| 1302 | |
| 1303 | /** |
| 1304 | * ipr_get_error - Find the specfied IOASC in the ipr_error_table. |
| 1305 | * @ioasc: IOASC |
| 1306 | * |
| 1307 | * This function will return the index of into the ipr_error_table |
| 1308 | * for the specified IOASC. If the IOASC is not in the table, |
| 1309 | * 0 will be returned, which points to the entry used for unknown errors. |
| 1310 | * |
| 1311 | * Return value: |
| 1312 | * index into the ipr_error_table |
| 1313 | **/ |
| 1314 | static u32 ipr_get_error(u32 ioasc) |
| 1315 | { |
| 1316 | int i; |
| 1317 | |
| 1318 | for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++) |
| 1319 | if (ipr_error_table[i].ioasc == ioasc) |
| 1320 | return i; |
| 1321 | |
| 1322 | return 0; |
| 1323 | } |
| 1324 | |
| 1325 | /** |
| 1326 | * ipr_handle_log_data - Log an adapter error. |
| 1327 | * @ioa_cfg: ioa config struct |
| 1328 | * @hostrcb: hostrcb struct |
| 1329 | * |
| 1330 | * This function logs an adapter error to the system. |
| 1331 | * |
| 1332 | * Return value: |
| 1333 | * none |
| 1334 | **/ |
| 1335 | static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg, |
| 1336 | struct ipr_hostrcb *hostrcb) |
| 1337 | { |
| 1338 | u32 ioasc; |
| 1339 | int error_index; |
| 1340 | |
| 1341 | if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY) |
| 1342 | return; |
| 1343 | |
| 1344 | if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST) |
| 1345 | dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n"); |
| 1346 | |
| 1347 | ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc); |
| 1348 | |
| 1349 | if (ioasc == IPR_IOASC_BUS_WAS_RESET || |
| 1350 | ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER) { |
| 1351 | /* Tell the midlayer we had a bus reset so it will handle the UA properly */ |
| 1352 | scsi_report_bus_reset(ioa_cfg->host, |
| 1353 | hostrcb->hcam.u.error.failing_dev_res_addr.bus); |
| 1354 | } |
| 1355 | |
| 1356 | error_index = ipr_get_error(ioasc); |
| 1357 | |
| 1358 | if (!ipr_error_table[error_index].log_hcam) |
| 1359 | return; |
| 1360 | |
| 1361 | if (ipr_is_device(&hostrcb->hcam.u.error.failing_dev_res_addr)) { |
Brian King | fb3ed3c | 2006-03-29 09:37:37 -0600 | [diff] [blame] | 1362 | ipr_ra_err(ioa_cfg, hostrcb->hcam.u.error.failing_dev_res_addr, |
| 1363 | "%s\n", ipr_error_table[error_index].error); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1364 | } else { |
| 1365 | dev_err(&ioa_cfg->pdev->dev, "%s\n", |
| 1366 | ipr_error_table[error_index].error); |
| 1367 | } |
| 1368 | |
| 1369 | /* Set indication we have logged an error */ |
| 1370 | ioa_cfg->errors_logged++; |
| 1371 | |
| 1372 | if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) |
| 1373 | return; |
brking@us.ibm.com | cf85203 | 2005-11-01 17:00:47 -0600 | [diff] [blame] | 1374 | if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw)) |
| 1375 | hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1376 | |
| 1377 | switch (hostrcb->hcam.overlay_id) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1378 | case IPR_HOST_RCB_OVERLAY_ID_2: |
| 1379 | ipr_log_cache_error(ioa_cfg, hostrcb); |
| 1380 | break; |
| 1381 | case IPR_HOST_RCB_OVERLAY_ID_3: |
| 1382 | ipr_log_config_error(ioa_cfg, hostrcb); |
| 1383 | break; |
| 1384 | case IPR_HOST_RCB_OVERLAY_ID_4: |
| 1385 | case IPR_HOST_RCB_OVERLAY_ID_6: |
| 1386 | ipr_log_array_error(ioa_cfg, hostrcb); |
| 1387 | break; |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 1388 | case IPR_HOST_RCB_OVERLAY_ID_7: |
| 1389 | ipr_log_dual_ioa_error(ioa_cfg, hostrcb); |
| 1390 | break; |
brking@us.ibm.com | ee0f05b | 2005-11-01 17:02:15 -0600 | [diff] [blame] | 1391 | case IPR_HOST_RCB_OVERLAY_ID_12: |
| 1392 | ipr_log_enhanced_cache_error(ioa_cfg, hostrcb); |
| 1393 | break; |
| 1394 | case IPR_HOST_RCB_OVERLAY_ID_13: |
| 1395 | ipr_log_enhanced_config_error(ioa_cfg, hostrcb); |
| 1396 | break; |
| 1397 | case IPR_HOST_RCB_OVERLAY_ID_14: |
| 1398 | case IPR_HOST_RCB_OVERLAY_ID_16: |
| 1399 | ipr_log_enhanced_array_error(ioa_cfg, hostrcb); |
| 1400 | break; |
| 1401 | case IPR_HOST_RCB_OVERLAY_ID_17: |
| 1402 | ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb); |
| 1403 | break; |
brking@us.ibm.com | cf85203 | 2005-11-01 17:00:47 -0600 | [diff] [blame] | 1404 | case IPR_HOST_RCB_OVERLAY_ID_1: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1405 | case IPR_HOST_RCB_OVERLAY_ID_DEFAULT: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1406 | default: |
brking@us.ibm.com | a9cfca9 | 2005-11-01 17:00:41 -0600 | [diff] [blame] | 1407 | ipr_log_generic_error(ioa_cfg, hostrcb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1408 | break; |
| 1409 | } |
| 1410 | } |
| 1411 | |
| 1412 | /** |
| 1413 | * ipr_process_error - Op done function for an adapter error log. |
| 1414 | * @ipr_cmd: ipr command struct |
| 1415 | * |
| 1416 | * This function is the op done function for an error log host |
| 1417 | * controlled async from the adapter. It will log the error and |
| 1418 | * send the HCAM back to the adapter. |
| 1419 | * |
| 1420 | * Return value: |
| 1421 | * none |
| 1422 | **/ |
| 1423 | static void ipr_process_error(struct ipr_cmnd *ipr_cmd) |
| 1424 | { |
| 1425 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 1426 | struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; |
| 1427 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); |
| 1428 | |
| 1429 | list_del(&hostrcb->queue); |
| 1430 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); |
| 1431 | |
| 1432 | if (!ioasc) { |
| 1433 | ipr_handle_log_data(ioa_cfg, hostrcb); |
| 1434 | } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) { |
| 1435 | dev_err(&ioa_cfg->pdev->dev, |
| 1436 | "Host RCB failed with IOASC: 0x%08X\n", ioasc); |
| 1437 | } |
| 1438 | |
| 1439 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); |
| 1440 | } |
| 1441 | |
| 1442 | /** |
| 1443 | * ipr_timeout - An internally generated op has timed out. |
| 1444 | * @ipr_cmd: ipr command struct |
| 1445 | * |
| 1446 | * This function blocks host requests and initiates an |
| 1447 | * adapter reset. |
| 1448 | * |
| 1449 | * Return value: |
| 1450 | * none |
| 1451 | **/ |
| 1452 | static void ipr_timeout(struct ipr_cmnd *ipr_cmd) |
| 1453 | { |
| 1454 | unsigned long lock_flags = 0; |
| 1455 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 1456 | |
| 1457 | ENTER; |
| 1458 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 1459 | |
| 1460 | ioa_cfg->errors_logged++; |
| 1461 | dev_err(&ioa_cfg->pdev->dev, |
| 1462 | "Adapter being reset due to command timeout.\n"); |
| 1463 | |
| 1464 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) |
| 1465 | ioa_cfg->sdt_state = GET_DUMP; |
| 1466 | |
| 1467 | if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) |
| 1468 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
| 1469 | |
| 1470 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 1471 | LEAVE; |
| 1472 | } |
| 1473 | |
| 1474 | /** |
| 1475 | * ipr_oper_timeout - Adapter timed out transitioning to operational |
| 1476 | * @ipr_cmd: ipr command struct |
| 1477 | * |
| 1478 | * This function blocks host requests and initiates an |
| 1479 | * adapter reset. |
| 1480 | * |
| 1481 | * Return value: |
| 1482 | * none |
| 1483 | **/ |
| 1484 | static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd) |
| 1485 | { |
| 1486 | unsigned long lock_flags = 0; |
| 1487 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 1488 | |
| 1489 | ENTER; |
| 1490 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 1491 | |
| 1492 | ioa_cfg->errors_logged++; |
| 1493 | dev_err(&ioa_cfg->pdev->dev, |
| 1494 | "Adapter timed out transitioning to operational.\n"); |
| 1495 | |
| 1496 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) |
| 1497 | ioa_cfg->sdt_state = GET_DUMP; |
| 1498 | |
| 1499 | if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) { |
| 1500 | if (ipr_fastfail) |
| 1501 | ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; |
| 1502 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
| 1503 | } |
| 1504 | |
| 1505 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 1506 | LEAVE; |
| 1507 | } |
| 1508 | |
| 1509 | /** |
| 1510 | * ipr_reset_reload - Reset/Reload the IOA |
| 1511 | * @ioa_cfg: ioa config struct |
| 1512 | * @shutdown_type: shutdown type |
| 1513 | * |
| 1514 | * This function resets the adapter and re-initializes it. |
| 1515 | * This function assumes that all new host commands have been stopped. |
| 1516 | * Return value: |
| 1517 | * SUCCESS / FAILED |
| 1518 | **/ |
| 1519 | static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg, |
| 1520 | enum ipr_shutdown_type shutdown_type) |
| 1521 | { |
| 1522 | if (!ioa_cfg->in_reset_reload) |
| 1523 | ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); |
| 1524 | |
| 1525 | spin_unlock_irq(ioa_cfg->host->host_lock); |
| 1526 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
| 1527 | spin_lock_irq(ioa_cfg->host->host_lock); |
| 1528 | |
| 1529 | /* If we got hit with a host reset while we were already resetting |
| 1530 | the adapter for some reason, and the reset failed. */ |
| 1531 | if (ioa_cfg->ioa_is_dead) { |
| 1532 | ipr_trace; |
| 1533 | return FAILED; |
| 1534 | } |
| 1535 | |
| 1536 | return SUCCESS; |
| 1537 | } |
| 1538 | |
| 1539 | /** |
| 1540 | * ipr_find_ses_entry - Find matching SES in SES table |
| 1541 | * @res: resource entry struct of SES |
| 1542 | * |
| 1543 | * Return value: |
| 1544 | * pointer to SES table entry / NULL on failure |
| 1545 | **/ |
| 1546 | static const struct ipr_ses_table_entry * |
| 1547 | ipr_find_ses_entry(struct ipr_resource_entry *res) |
| 1548 | { |
| 1549 | int i, j, matches; |
| 1550 | const struct ipr_ses_table_entry *ste = ipr_ses_table; |
| 1551 | |
| 1552 | for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) { |
| 1553 | for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) { |
| 1554 | if (ste->compare_product_id_byte[j] == 'X') { |
| 1555 | if (res->cfgte.std_inq_data.vpids.product_id[j] == ste->product_id[j]) |
| 1556 | matches++; |
| 1557 | else |
| 1558 | break; |
| 1559 | } else |
| 1560 | matches++; |
| 1561 | } |
| 1562 | |
| 1563 | if (matches == IPR_PROD_ID_LEN) |
| 1564 | return ste; |
| 1565 | } |
| 1566 | |
| 1567 | return NULL; |
| 1568 | } |
| 1569 | |
| 1570 | /** |
| 1571 | * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus |
| 1572 | * @ioa_cfg: ioa config struct |
| 1573 | * @bus: SCSI bus |
| 1574 | * @bus_width: bus width |
| 1575 | * |
| 1576 | * Return value: |
| 1577 | * SCSI bus speed in units of 100KHz, 1600 is 160 MHz |
| 1578 | * For a 2-byte wide SCSI bus, the maximum transfer speed is |
| 1579 | * twice the maximum transfer rate (e.g. for a wide enabled bus, |
| 1580 | * max 160MHz = max 320MB/sec). |
| 1581 | **/ |
| 1582 | static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width) |
| 1583 | { |
| 1584 | struct ipr_resource_entry *res; |
| 1585 | const struct ipr_ses_table_entry *ste; |
| 1586 | u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width); |
| 1587 | |
| 1588 | /* Loop through each config table entry in the config table buffer */ |
| 1589 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
| 1590 | if (!(IPR_IS_SES_DEVICE(res->cfgte.std_inq_data))) |
| 1591 | continue; |
| 1592 | |
| 1593 | if (bus != res->cfgte.res_addr.bus) |
| 1594 | continue; |
| 1595 | |
| 1596 | if (!(ste = ipr_find_ses_entry(res))) |
| 1597 | continue; |
| 1598 | |
| 1599 | max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8); |
| 1600 | } |
| 1601 | |
| 1602 | return max_xfer_rate; |
| 1603 | } |
| 1604 | |
| 1605 | /** |
| 1606 | * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA |
| 1607 | * @ioa_cfg: ioa config struct |
| 1608 | * @max_delay: max delay in micro-seconds to wait |
| 1609 | * |
| 1610 | * Waits for an IODEBUG ACK from the IOA, doing busy looping. |
| 1611 | * |
| 1612 | * Return value: |
| 1613 | * 0 on success / other on failure |
| 1614 | **/ |
| 1615 | static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay) |
| 1616 | { |
| 1617 | volatile u32 pcii_reg; |
| 1618 | int delay = 1; |
| 1619 | |
| 1620 | /* Read interrupt reg until IOA signals IO Debug Acknowledge */ |
| 1621 | while (delay < max_delay) { |
| 1622 | pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg); |
| 1623 | |
| 1624 | if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE) |
| 1625 | return 0; |
| 1626 | |
| 1627 | /* udelay cannot be used if delay is more than a few milliseconds */ |
| 1628 | if ((delay / 1000) > MAX_UDELAY_MS) |
| 1629 | mdelay(delay / 1000); |
| 1630 | else |
| 1631 | udelay(delay); |
| 1632 | |
| 1633 | delay += delay; |
| 1634 | } |
| 1635 | return -EIO; |
| 1636 | } |
| 1637 | |
| 1638 | /** |
| 1639 | * ipr_get_ldump_data_section - Dump IOA memory |
| 1640 | * @ioa_cfg: ioa config struct |
| 1641 | * @start_addr: adapter address to dump |
| 1642 | * @dest: destination kernel buffer |
| 1643 | * @length_in_words: length to dump in 4 byte words |
| 1644 | * |
| 1645 | * Return value: |
| 1646 | * 0 on success / -EIO on failure |
| 1647 | **/ |
| 1648 | static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg, |
| 1649 | u32 start_addr, |
| 1650 | __be32 *dest, u32 length_in_words) |
| 1651 | { |
| 1652 | volatile u32 temp_pcii_reg; |
| 1653 | int i, delay = 0; |
| 1654 | |
| 1655 | /* Write IOA interrupt reg starting LDUMP state */ |
| 1656 | writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT), |
| 1657 | ioa_cfg->regs.set_uproc_interrupt_reg); |
| 1658 | |
| 1659 | /* Wait for IO debug acknowledge */ |
| 1660 | if (ipr_wait_iodbg_ack(ioa_cfg, |
| 1661 | IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) { |
| 1662 | dev_err(&ioa_cfg->pdev->dev, |
| 1663 | "IOA dump long data transfer timeout\n"); |
| 1664 | return -EIO; |
| 1665 | } |
| 1666 | |
| 1667 | /* Signal LDUMP interlocked - clear IO debug ack */ |
| 1668 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, |
| 1669 | ioa_cfg->regs.clr_interrupt_reg); |
| 1670 | |
| 1671 | /* Write Mailbox with starting address */ |
| 1672 | writel(start_addr, ioa_cfg->ioa_mailbox); |
| 1673 | |
| 1674 | /* Signal address valid - clear IOA Reset alert */ |
| 1675 | writel(IPR_UPROCI_RESET_ALERT, |
| 1676 | ioa_cfg->regs.clr_uproc_interrupt_reg); |
| 1677 | |
| 1678 | for (i = 0; i < length_in_words; i++) { |
| 1679 | /* Wait for IO debug acknowledge */ |
| 1680 | if (ipr_wait_iodbg_ack(ioa_cfg, |
| 1681 | IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) { |
| 1682 | dev_err(&ioa_cfg->pdev->dev, |
| 1683 | "IOA dump short data transfer timeout\n"); |
| 1684 | return -EIO; |
| 1685 | } |
| 1686 | |
| 1687 | /* Read data from mailbox and increment destination pointer */ |
| 1688 | *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox)); |
| 1689 | dest++; |
| 1690 | |
| 1691 | /* For all but the last word of data, signal data received */ |
| 1692 | if (i < (length_in_words - 1)) { |
| 1693 | /* Signal dump data received - Clear IO debug Ack */ |
| 1694 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, |
| 1695 | ioa_cfg->regs.clr_interrupt_reg); |
| 1696 | } |
| 1697 | } |
| 1698 | |
| 1699 | /* Signal end of block transfer. Set reset alert then clear IO debug ack */ |
| 1700 | writel(IPR_UPROCI_RESET_ALERT, |
| 1701 | ioa_cfg->regs.set_uproc_interrupt_reg); |
| 1702 | |
| 1703 | writel(IPR_UPROCI_IO_DEBUG_ALERT, |
| 1704 | ioa_cfg->regs.clr_uproc_interrupt_reg); |
| 1705 | |
| 1706 | /* Signal dump data received - Clear IO debug Ack */ |
| 1707 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, |
| 1708 | ioa_cfg->regs.clr_interrupt_reg); |
| 1709 | |
| 1710 | /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */ |
| 1711 | while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) { |
| 1712 | temp_pcii_reg = |
| 1713 | readl(ioa_cfg->regs.sense_uproc_interrupt_reg); |
| 1714 | |
| 1715 | if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT)) |
| 1716 | return 0; |
| 1717 | |
| 1718 | udelay(10); |
| 1719 | delay += 10; |
| 1720 | } |
| 1721 | |
| 1722 | return 0; |
| 1723 | } |
| 1724 | |
| 1725 | #ifdef CONFIG_SCSI_IPR_DUMP |
| 1726 | /** |
| 1727 | * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer |
| 1728 | * @ioa_cfg: ioa config struct |
| 1729 | * @pci_address: adapter address |
| 1730 | * @length: length of data to copy |
| 1731 | * |
| 1732 | * Copy data from PCI adapter to kernel buffer. |
| 1733 | * Note: length MUST be a 4 byte multiple |
| 1734 | * Return value: |
| 1735 | * 0 on success / other on failure |
| 1736 | **/ |
| 1737 | static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg, |
| 1738 | unsigned long pci_address, u32 length) |
| 1739 | { |
| 1740 | int bytes_copied = 0; |
| 1741 | int cur_len, rc, rem_len, rem_page_len; |
| 1742 | __be32 *page; |
| 1743 | unsigned long lock_flags = 0; |
| 1744 | struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump; |
| 1745 | |
| 1746 | while (bytes_copied < length && |
| 1747 | (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) { |
| 1748 | if (ioa_dump->page_offset >= PAGE_SIZE || |
| 1749 | ioa_dump->page_offset == 0) { |
| 1750 | page = (__be32 *)__get_free_page(GFP_ATOMIC); |
| 1751 | |
| 1752 | if (!page) { |
| 1753 | ipr_trace; |
| 1754 | return bytes_copied; |
| 1755 | } |
| 1756 | |
| 1757 | ioa_dump->page_offset = 0; |
| 1758 | ioa_dump->ioa_data[ioa_dump->next_page_index] = page; |
| 1759 | ioa_dump->next_page_index++; |
| 1760 | } else |
| 1761 | page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1]; |
| 1762 | |
| 1763 | rem_len = length - bytes_copied; |
| 1764 | rem_page_len = PAGE_SIZE - ioa_dump->page_offset; |
| 1765 | cur_len = min(rem_len, rem_page_len); |
| 1766 | |
| 1767 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 1768 | if (ioa_cfg->sdt_state == ABORT_DUMP) { |
| 1769 | rc = -EIO; |
| 1770 | } else { |
| 1771 | rc = ipr_get_ldump_data_section(ioa_cfg, |
| 1772 | pci_address + bytes_copied, |
| 1773 | &page[ioa_dump->page_offset / 4], |
| 1774 | (cur_len / sizeof(u32))); |
| 1775 | } |
| 1776 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 1777 | |
| 1778 | if (!rc) { |
| 1779 | ioa_dump->page_offset += cur_len; |
| 1780 | bytes_copied += cur_len; |
| 1781 | } else { |
| 1782 | ipr_trace; |
| 1783 | break; |
| 1784 | } |
| 1785 | schedule(); |
| 1786 | } |
| 1787 | |
| 1788 | return bytes_copied; |
| 1789 | } |
| 1790 | |
| 1791 | /** |
| 1792 | * ipr_init_dump_entry_hdr - Initialize a dump entry header. |
| 1793 | * @hdr: dump entry header struct |
| 1794 | * |
| 1795 | * Return value: |
| 1796 | * nothing |
| 1797 | **/ |
| 1798 | static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr) |
| 1799 | { |
| 1800 | hdr->eye_catcher = IPR_DUMP_EYE_CATCHER; |
| 1801 | hdr->num_elems = 1; |
| 1802 | hdr->offset = sizeof(*hdr); |
| 1803 | hdr->status = IPR_DUMP_STATUS_SUCCESS; |
| 1804 | } |
| 1805 | |
| 1806 | /** |
| 1807 | * ipr_dump_ioa_type_data - Fill in the adapter type in the dump. |
| 1808 | * @ioa_cfg: ioa config struct |
| 1809 | * @driver_dump: driver dump struct |
| 1810 | * |
| 1811 | * Return value: |
| 1812 | * nothing |
| 1813 | **/ |
| 1814 | static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg, |
| 1815 | struct ipr_driver_dump *driver_dump) |
| 1816 | { |
| 1817 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; |
| 1818 | |
| 1819 | ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr); |
| 1820 | driver_dump->ioa_type_entry.hdr.len = |
| 1821 | sizeof(struct ipr_dump_ioa_type_entry) - |
| 1822 | sizeof(struct ipr_dump_entry_header); |
| 1823 | driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; |
| 1824 | driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID; |
| 1825 | driver_dump->ioa_type_entry.type = ioa_cfg->type; |
| 1826 | driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) | |
| 1827 | (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) | |
| 1828 | ucode_vpd->minor_release[1]; |
| 1829 | driver_dump->hdr.num_entries++; |
| 1830 | } |
| 1831 | |
| 1832 | /** |
| 1833 | * ipr_dump_version_data - Fill in the driver version in the dump. |
| 1834 | * @ioa_cfg: ioa config struct |
| 1835 | * @driver_dump: driver dump struct |
| 1836 | * |
| 1837 | * Return value: |
| 1838 | * nothing |
| 1839 | **/ |
| 1840 | static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg, |
| 1841 | struct ipr_driver_dump *driver_dump) |
| 1842 | { |
| 1843 | ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr); |
| 1844 | driver_dump->version_entry.hdr.len = |
| 1845 | sizeof(struct ipr_dump_version_entry) - |
| 1846 | sizeof(struct ipr_dump_entry_header); |
| 1847 | driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; |
| 1848 | driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID; |
| 1849 | strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION); |
| 1850 | driver_dump->hdr.num_entries++; |
| 1851 | } |
| 1852 | |
| 1853 | /** |
| 1854 | * ipr_dump_trace_data - Fill in the IOA trace in the dump. |
| 1855 | * @ioa_cfg: ioa config struct |
| 1856 | * @driver_dump: driver dump struct |
| 1857 | * |
| 1858 | * Return value: |
| 1859 | * nothing |
| 1860 | **/ |
| 1861 | static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg, |
| 1862 | struct ipr_driver_dump *driver_dump) |
| 1863 | { |
| 1864 | ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr); |
| 1865 | driver_dump->trace_entry.hdr.len = |
| 1866 | sizeof(struct ipr_dump_trace_entry) - |
| 1867 | sizeof(struct ipr_dump_entry_header); |
| 1868 | driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; |
| 1869 | driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID; |
| 1870 | memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE); |
| 1871 | driver_dump->hdr.num_entries++; |
| 1872 | } |
| 1873 | |
| 1874 | /** |
| 1875 | * ipr_dump_location_data - Fill in the IOA location in the dump. |
| 1876 | * @ioa_cfg: ioa config struct |
| 1877 | * @driver_dump: driver dump struct |
| 1878 | * |
| 1879 | * Return value: |
| 1880 | * nothing |
| 1881 | **/ |
| 1882 | static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg, |
| 1883 | struct ipr_driver_dump *driver_dump) |
| 1884 | { |
| 1885 | ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr); |
| 1886 | driver_dump->location_entry.hdr.len = |
| 1887 | sizeof(struct ipr_dump_location_entry) - |
| 1888 | sizeof(struct ipr_dump_entry_header); |
| 1889 | driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; |
| 1890 | driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID; |
| 1891 | strcpy(driver_dump->location_entry.location, ioa_cfg->pdev->dev.bus_id); |
| 1892 | driver_dump->hdr.num_entries++; |
| 1893 | } |
| 1894 | |
| 1895 | /** |
| 1896 | * ipr_get_ioa_dump - Perform a dump of the driver and adapter. |
| 1897 | * @ioa_cfg: ioa config struct |
| 1898 | * @dump: dump struct |
| 1899 | * |
| 1900 | * Return value: |
| 1901 | * nothing |
| 1902 | **/ |
| 1903 | static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump) |
| 1904 | { |
| 1905 | unsigned long start_addr, sdt_word; |
| 1906 | unsigned long lock_flags = 0; |
| 1907 | struct ipr_driver_dump *driver_dump = &dump->driver_dump; |
| 1908 | struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump; |
| 1909 | u32 num_entries, start_off, end_off; |
| 1910 | u32 bytes_to_copy, bytes_copied, rc; |
| 1911 | struct ipr_sdt *sdt; |
| 1912 | int i; |
| 1913 | |
| 1914 | ENTER; |
| 1915 | |
| 1916 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 1917 | |
| 1918 | if (ioa_cfg->sdt_state != GET_DUMP) { |
| 1919 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 1920 | return; |
| 1921 | } |
| 1922 | |
| 1923 | start_addr = readl(ioa_cfg->ioa_mailbox); |
| 1924 | |
| 1925 | if (!ipr_sdt_is_fmt2(start_addr)) { |
| 1926 | dev_err(&ioa_cfg->pdev->dev, |
| 1927 | "Invalid dump table format: %lx\n", start_addr); |
| 1928 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 1929 | return; |
| 1930 | } |
| 1931 | |
| 1932 | dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n"); |
| 1933 | |
| 1934 | driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER; |
| 1935 | |
| 1936 | /* Initialize the overall dump header */ |
| 1937 | driver_dump->hdr.len = sizeof(struct ipr_driver_dump); |
| 1938 | driver_dump->hdr.num_entries = 1; |
| 1939 | driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header); |
| 1940 | driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS; |
| 1941 | driver_dump->hdr.os = IPR_DUMP_OS_LINUX; |
| 1942 | driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME; |
| 1943 | |
| 1944 | ipr_dump_version_data(ioa_cfg, driver_dump); |
| 1945 | ipr_dump_location_data(ioa_cfg, driver_dump); |
| 1946 | ipr_dump_ioa_type_data(ioa_cfg, driver_dump); |
| 1947 | ipr_dump_trace_data(ioa_cfg, driver_dump); |
| 1948 | |
| 1949 | /* Update dump_header */ |
| 1950 | driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header); |
| 1951 | |
| 1952 | /* IOA Dump entry */ |
| 1953 | ipr_init_dump_entry_hdr(&ioa_dump->hdr); |
| 1954 | ioa_dump->format = IPR_SDT_FMT2; |
| 1955 | ioa_dump->hdr.len = 0; |
| 1956 | ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; |
| 1957 | ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID; |
| 1958 | |
| 1959 | /* First entries in sdt are actually a list of dump addresses and |
| 1960 | lengths to gather the real dump data. sdt represents the pointer |
| 1961 | to the ioa generated dump table. Dump data will be extracted based |
| 1962 | on entries in this table */ |
| 1963 | sdt = &ioa_dump->sdt; |
| 1964 | |
| 1965 | rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt, |
| 1966 | sizeof(struct ipr_sdt) / sizeof(__be32)); |
| 1967 | |
| 1968 | /* Smart Dump table is ready to use and the first entry is valid */ |
| 1969 | if (rc || (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE)) { |
| 1970 | dev_err(&ioa_cfg->pdev->dev, |
| 1971 | "Dump of IOA failed. Dump table not valid: %d, %X.\n", |
| 1972 | rc, be32_to_cpu(sdt->hdr.state)); |
| 1973 | driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED; |
| 1974 | ioa_cfg->sdt_state = DUMP_OBTAINED; |
| 1975 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 1976 | return; |
| 1977 | } |
| 1978 | |
| 1979 | num_entries = be32_to_cpu(sdt->hdr.num_entries_used); |
| 1980 | |
| 1981 | if (num_entries > IPR_NUM_SDT_ENTRIES) |
| 1982 | num_entries = IPR_NUM_SDT_ENTRIES; |
| 1983 | |
| 1984 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 1985 | |
| 1986 | for (i = 0; i < num_entries; i++) { |
| 1987 | if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) { |
| 1988 | driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; |
| 1989 | break; |
| 1990 | } |
| 1991 | |
| 1992 | if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) { |
| 1993 | sdt_word = be32_to_cpu(sdt->entry[i].bar_str_offset); |
| 1994 | start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK; |
| 1995 | end_off = be32_to_cpu(sdt->entry[i].end_offset); |
| 1996 | |
| 1997 | if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) { |
| 1998 | bytes_to_copy = end_off - start_off; |
| 1999 | if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) { |
| 2000 | sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY; |
| 2001 | continue; |
| 2002 | } |
| 2003 | |
| 2004 | /* Copy data from adapter to driver buffers */ |
| 2005 | bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word, |
| 2006 | bytes_to_copy); |
| 2007 | |
| 2008 | ioa_dump->hdr.len += bytes_copied; |
| 2009 | |
| 2010 | if (bytes_copied != bytes_to_copy) { |
| 2011 | driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; |
| 2012 | break; |
| 2013 | } |
| 2014 | } |
| 2015 | } |
| 2016 | } |
| 2017 | |
| 2018 | dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n"); |
| 2019 | |
| 2020 | /* Update dump_header */ |
| 2021 | driver_dump->hdr.len += ioa_dump->hdr.len; |
| 2022 | wmb(); |
| 2023 | ioa_cfg->sdt_state = DUMP_OBTAINED; |
| 2024 | LEAVE; |
| 2025 | } |
| 2026 | |
| 2027 | #else |
| 2028 | #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0) |
| 2029 | #endif |
| 2030 | |
| 2031 | /** |
| 2032 | * ipr_release_dump - Free adapter dump memory |
| 2033 | * @kref: kref struct |
| 2034 | * |
| 2035 | * Return value: |
| 2036 | * nothing |
| 2037 | **/ |
| 2038 | static void ipr_release_dump(struct kref *kref) |
| 2039 | { |
| 2040 | struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref); |
| 2041 | struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg; |
| 2042 | unsigned long lock_flags = 0; |
| 2043 | int i; |
| 2044 | |
| 2045 | ENTER; |
| 2046 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 2047 | ioa_cfg->dump = NULL; |
| 2048 | ioa_cfg->sdt_state = INACTIVE; |
| 2049 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2050 | |
| 2051 | for (i = 0; i < dump->ioa_dump.next_page_index; i++) |
| 2052 | free_page((unsigned long) dump->ioa_dump.ioa_data[i]); |
| 2053 | |
| 2054 | kfree(dump); |
| 2055 | LEAVE; |
| 2056 | } |
| 2057 | |
| 2058 | /** |
| 2059 | * ipr_worker_thread - Worker thread |
| 2060 | * @data: ioa config struct |
| 2061 | * |
| 2062 | * Called at task level from a work thread. This function takes care |
| 2063 | * of adding and removing device from the mid-layer as configuration |
| 2064 | * changes are detected by the adapter. |
| 2065 | * |
| 2066 | * Return value: |
| 2067 | * nothing |
| 2068 | **/ |
| 2069 | static void ipr_worker_thread(void *data) |
| 2070 | { |
| 2071 | unsigned long lock_flags; |
| 2072 | struct ipr_resource_entry *res; |
| 2073 | struct scsi_device *sdev; |
| 2074 | struct ipr_dump *dump; |
| 2075 | struct ipr_ioa_cfg *ioa_cfg = data; |
| 2076 | u8 bus, target, lun; |
| 2077 | int did_work; |
| 2078 | |
| 2079 | ENTER; |
| 2080 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 2081 | |
| 2082 | if (ioa_cfg->sdt_state == GET_DUMP) { |
| 2083 | dump = ioa_cfg->dump; |
| 2084 | if (!dump) { |
| 2085 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2086 | return; |
| 2087 | } |
| 2088 | kref_get(&dump->kref); |
| 2089 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2090 | ipr_get_ioa_dump(ioa_cfg, dump); |
| 2091 | kref_put(&dump->kref, ipr_release_dump); |
| 2092 | |
| 2093 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 2094 | if (ioa_cfg->sdt_state == DUMP_OBTAINED) |
| 2095 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
| 2096 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2097 | return; |
| 2098 | } |
| 2099 | |
| 2100 | restart: |
| 2101 | do { |
| 2102 | did_work = 0; |
| 2103 | if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) { |
| 2104 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2105 | return; |
| 2106 | } |
| 2107 | |
| 2108 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
| 2109 | if (res->del_from_ml && res->sdev) { |
| 2110 | did_work = 1; |
| 2111 | sdev = res->sdev; |
| 2112 | if (!scsi_device_get(sdev)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2113 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); |
| 2114 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2115 | scsi_remove_device(sdev); |
| 2116 | scsi_device_put(sdev); |
| 2117 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 2118 | } |
| 2119 | break; |
| 2120 | } |
| 2121 | } |
| 2122 | } while(did_work); |
| 2123 | |
| 2124 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
| 2125 | if (res->add_to_ml) { |
| 2126 | bus = res->cfgte.res_addr.bus; |
| 2127 | target = res->cfgte.res_addr.target; |
| 2128 | lun = res->cfgte.res_addr.lun; |
Brian King | 1121b79 | 2006-03-29 09:37:16 -0600 | [diff] [blame] | 2129 | res->add_to_ml = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2130 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2131 | scsi_add_device(ioa_cfg->host, bus, target, lun); |
| 2132 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 2133 | goto restart; |
| 2134 | } |
| 2135 | } |
| 2136 | |
| 2137 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
Kay Sievers | 312c004 | 2005-11-16 09:00:00 +0100 | [diff] [blame] | 2138 | kobject_uevent(&ioa_cfg->host->shost_classdev.kobj, KOBJ_CHANGE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2139 | LEAVE; |
| 2140 | } |
| 2141 | |
| 2142 | #ifdef CONFIG_SCSI_IPR_TRACE |
| 2143 | /** |
| 2144 | * ipr_read_trace - Dump the adapter trace |
| 2145 | * @kobj: kobject struct |
| 2146 | * @buf: buffer |
| 2147 | * @off: offset |
| 2148 | * @count: buffer size |
| 2149 | * |
| 2150 | * Return value: |
| 2151 | * number of bytes printed to buffer |
| 2152 | **/ |
| 2153 | static ssize_t ipr_read_trace(struct kobject *kobj, char *buf, |
| 2154 | loff_t off, size_t count) |
| 2155 | { |
| 2156 | struct class_device *cdev = container_of(kobj,struct class_device,kobj); |
| 2157 | struct Scsi_Host *shost = class_to_shost(cdev); |
| 2158 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 2159 | unsigned long lock_flags = 0; |
| 2160 | int size = IPR_TRACE_SIZE; |
| 2161 | char *src = (char *)ioa_cfg->trace; |
| 2162 | |
| 2163 | if (off > size) |
| 2164 | return 0; |
| 2165 | if (off + count > size) { |
| 2166 | size -= off; |
| 2167 | count = size; |
| 2168 | } |
| 2169 | |
| 2170 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 2171 | memcpy(buf, &src[off], count); |
| 2172 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2173 | return count; |
| 2174 | } |
| 2175 | |
| 2176 | static struct bin_attribute ipr_trace_attr = { |
| 2177 | .attr = { |
| 2178 | .name = "trace", |
| 2179 | .mode = S_IRUGO, |
| 2180 | }, |
| 2181 | .size = 0, |
| 2182 | .read = ipr_read_trace, |
| 2183 | }; |
| 2184 | #endif |
| 2185 | |
brking@us.ibm.com | 6227504 | 2005-11-01 17:01:14 -0600 | [diff] [blame] | 2186 | static const struct { |
| 2187 | enum ipr_cache_state state; |
| 2188 | char *name; |
| 2189 | } cache_state [] = { |
| 2190 | { CACHE_NONE, "none" }, |
| 2191 | { CACHE_DISABLED, "disabled" }, |
| 2192 | { CACHE_ENABLED, "enabled" } |
| 2193 | }; |
| 2194 | |
| 2195 | /** |
| 2196 | * ipr_show_write_caching - Show the write caching attribute |
| 2197 | * @class_dev: class device struct |
| 2198 | * @buf: buffer |
| 2199 | * |
| 2200 | * Return value: |
| 2201 | * number of bytes printed to buffer |
| 2202 | **/ |
| 2203 | static ssize_t ipr_show_write_caching(struct class_device *class_dev, char *buf) |
| 2204 | { |
| 2205 | struct Scsi_Host *shost = class_to_shost(class_dev); |
| 2206 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 2207 | unsigned long lock_flags = 0; |
| 2208 | int i, len = 0; |
| 2209 | |
| 2210 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 2211 | for (i = 0; i < ARRAY_SIZE(cache_state); i++) { |
| 2212 | if (cache_state[i].state == ioa_cfg->cache_state) { |
| 2213 | len = snprintf(buf, PAGE_SIZE, "%s\n", cache_state[i].name); |
| 2214 | break; |
| 2215 | } |
| 2216 | } |
| 2217 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2218 | return len; |
| 2219 | } |
| 2220 | |
| 2221 | |
| 2222 | /** |
| 2223 | * ipr_store_write_caching - Enable/disable adapter write cache |
| 2224 | * @class_dev: class_device struct |
| 2225 | * @buf: buffer |
| 2226 | * @count: buffer size |
| 2227 | * |
| 2228 | * This function will enable/disable adapter write cache. |
| 2229 | * |
| 2230 | * Return value: |
| 2231 | * count on success / other on failure |
| 2232 | **/ |
| 2233 | static ssize_t ipr_store_write_caching(struct class_device *class_dev, |
| 2234 | const char *buf, size_t count) |
| 2235 | { |
| 2236 | struct Scsi_Host *shost = class_to_shost(class_dev); |
| 2237 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 2238 | unsigned long lock_flags = 0; |
| 2239 | enum ipr_cache_state new_state = CACHE_INVALID; |
| 2240 | int i; |
| 2241 | |
| 2242 | if (!capable(CAP_SYS_ADMIN)) |
| 2243 | return -EACCES; |
| 2244 | if (ioa_cfg->cache_state == CACHE_NONE) |
| 2245 | return -EINVAL; |
| 2246 | |
| 2247 | for (i = 0; i < ARRAY_SIZE(cache_state); i++) { |
| 2248 | if (!strncmp(cache_state[i].name, buf, strlen(cache_state[i].name))) { |
| 2249 | new_state = cache_state[i].state; |
| 2250 | break; |
| 2251 | } |
| 2252 | } |
| 2253 | |
| 2254 | if (new_state != CACHE_DISABLED && new_state != CACHE_ENABLED) |
| 2255 | return -EINVAL; |
| 2256 | |
| 2257 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 2258 | if (ioa_cfg->cache_state == new_state) { |
| 2259 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2260 | return count; |
| 2261 | } |
| 2262 | |
| 2263 | ioa_cfg->cache_state = new_state; |
| 2264 | dev_info(&ioa_cfg->pdev->dev, "%s adapter write cache.\n", |
| 2265 | new_state == CACHE_ENABLED ? "Enabling" : "Disabling"); |
| 2266 | if (!ioa_cfg->in_reset_reload) |
| 2267 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); |
| 2268 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2269 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
| 2270 | |
| 2271 | return count; |
| 2272 | } |
| 2273 | |
| 2274 | static struct class_device_attribute ipr_ioa_cache_attr = { |
| 2275 | .attr = { |
| 2276 | .name = "write_cache", |
| 2277 | .mode = S_IRUGO | S_IWUSR, |
| 2278 | }, |
| 2279 | .show = ipr_show_write_caching, |
| 2280 | .store = ipr_store_write_caching |
| 2281 | }; |
| 2282 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2283 | /** |
| 2284 | * ipr_show_fw_version - Show the firmware version |
| 2285 | * @class_dev: class device struct |
| 2286 | * @buf: buffer |
| 2287 | * |
| 2288 | * Return value: |
| 2289 | * number of bytes printed to buffer |
| 2290 | **/ |
| 2291 | static ssize_t ipr_show_fw_version(struct class_device *class_dev, char *buf) |
| 2292 | { |
| 2293 | struct Scsi_Host *shost = class_to_shost(class_dev); |
| 2294 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 2295 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; |
| 2296 | unsigned long lock_flags = 0; |
| 2297 | int len; |
| 2298 | |
| 2299 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 2300 | len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n", |
| 2301 | ucode_vpd->major_release, ucode_vpd->card_type, |
| 2302 | ucode_vpd->minor_release[0], |
| 2303 | ucode_vpd->minor_release[1]); |
| 2304 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2305 | return len; |
| 2306 | } |
| 2307 | |
| 2308 | static struct class_device_attribute ipr_fw_version_attr = { |
| 2309 | .attr = { |
| 2310 | .name = "fw_version", |
| 2311 | .mode = S_IRUGO, |
| 2312 | }, |
| 2313 | .show = ipr_show_fw_version, |
| 2314 | }; |
| 2315 | |
| 2316 | /** |
| 2317 | * ipr_show_log_level - Show the adapter's error logging level |
| 2318 | * @class_dev: class device struct |
| 2319 | * @buf: buffer |
| 2320 | * |
| 2321 | * Return value: |
| 2322 | * number of bytes printed to buffer |
| 2323 | **/ |
| 2324 | static ssize_t ipr_show_log_level(struct class_device *class_dev, char *buf) |
| 2325 | { |
| 2326 | struct Scsi_Host *shost = class_to_shost(class_dev); |
| 2327 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 2328 | unsigned long lock_flags = 0; |
| 2329 | int len; |
| 2330 | |
| 2331 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 2332 | len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level); |
| 2333 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2334 | return len; |
| 2335 | } |
| 2336 | |
| 2337 | /** |
| 2338 | * ipr_store_log_level - Change the adapter's error logging level |
| 2339 | * @class_dev: class device struct |
| 2340 | * @buf: buffer |
| 2341 | * |
| 2342 | * Return value: |
| 2343 | * number of bytes printed to buffer |
| 2344 | **/ |
| 2345 | static ssize_t ipr_store_log_level(struct class_device *class_dev, |
| 2346 | const char *buf, size_t count) |
| 2347 | { |
| 2348 | struct Scsi_Host *shost = class_to_shost(class_dev); |
| 2349 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 2350 | unsigned long lock_flags = 0; |
| 2351 | |
| 2352 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 2353 | ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); |
| 2354 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2355 | return strlen(buf); |
| 2356 | } |
| 2357 | |
| 2358 | static struct class_device_attribute ipr_log_level_attr = { |
| 2359 | .attr = { |
| 2360 | .name = "log_level", |
| 2361 | .mode = S_IRUGO | S_IWUSR, |
| 2362 | }, |
| 2363 | .show = ipr_show_log_level, |
| 2364 | .store = ipr_store_log_level |
| 2365 | }; |
| 2366 | |
| 2367 | /** |
| 2368 | * ipr_store_diagnostics - IOA Diagnostics interface |
| 2369 | * @class_dev: class_device struct |
| 2370 | * @buf: buffer |
| 2371 | * @count: buffer size |
| 2372 | * |
| 2373 | * This function will reset the adapter and wait a reasonable |
| 2374 | * amount of time for any errors that the adapter might log. |
| 2375 | * |
| 2376 | * Return value: |
| 2377 | * count on success / other on failure |
| 2378 | **/ |
| 2379 | static ssize_t ipr_store_diagnostics(struct class_device *class_dev, |
| 2380 | const char *buf, size_t count) |
| 2381 | { |
| 2382 | struct Scsi_Host *shost = class_to_shost(class_dev); |
| 2383 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 2384 | unsigned long lock_flags = 0; |
| 2385 | int rc = count; |
| 2386 | |
| 2387 | if (!capable(CAP_SYS_ADMIN)) |
| 2388 | return -EACCES; |
| 2389 | |
| 2390 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
| 2391 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 2392 | ioa_cfg->errors_logged = 0; |
| 2393 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); |
| 2394 | |
| 2395 | if (ioa_cfg->in_reset_reload) { |
| 2396 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2397 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
| 2398 | |
| 2399 | /* Wait for a second for any errors to be logged */ |
| 2400 | msleep(1000); |
| 2401 | } else { |
| 2402 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2403 | return -EIO; |
| 2404 | } |
| 2405 | |
| 2406 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 2407 | if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) |
| 2408 | rc = -EIO; |
| 2409 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2410 | |
| 2411 | return rc; |
| 2412 | } |
| 2413 | |
| 2414 | static struct class_device_attribute ipr_diagnostics_attr = { |
| 2415 | .attr = { |
| 2416 | .name = "run_diagnostics", |
| 2417 | .mode = S_IWUSR, |
| 2418 | }, |
| 2419 | .store = ipr_store_diagnostics |
| 2420 | }; |
| 2421 | |
| 2422 | /** |
brking@us.ibm.com | f37eb54 | 2005-11-01 17:01:40 -0600 | [diff] [blame] | 2423 | * ipr_show_adapter_state - Show the adapter's state |
| 2424 | * @class_dev: class device struct |
| 2425 | * @buf: buffer |
| 2426 | * |
| 2427 | * Return value: |
| 2428 | * number of bytes printed to buffer |
| 2429 | **/ |
| 2430 | static ssize_t ipr_show_adapter_state(struct class_device *class_dev, char *buf) |
| 2431 | { |
| 2432 | struct Scsi_Host *shost = class_to_shost(class_dev); |
| 2433 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 2434 | unsigned long lock_flags = 0; |
| 2435 | int len; |
| 2436 | |
| 2437 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 2438 | if (ioa_cfg->ioa_is_dead) |
| 2439 | len = snprintf(buf, PAGE_SIZE, "offline\n"); |
| 2440 | else |
| 2441 | len = snprintf(buf, PAGE_SIZE, "online\n"); |
| 2442 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2443 | return len; |
| 2444 | } |
| 2445 | |
| 2446 | /** |
| 2447 | * ipr_store_adapter_state - Change adapter state |
| 2448 | * @class_dev: class_device struct |
| 2449 | * @buf: buffer |
| 2450 | * @count: buffer size |
| 2451 | * |
| 2452 | * This function will change the adapter's state. |
| 2453 | * |
| 2454 | * Return value: |
| 2455 | * count on success / other on failure |
| 2456 | **/ |
| 2457 | static ssize_t ipr_store_adapter_state(struct class_device *class_dev, |
| 2458 | const char *buf, size_t count) |
| 2459 | { |
| 2460 | struct Scsi_Host *shost = class_to_shost(class_dev); |
| 2461 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 2462 | unsigned long lock_flags; |
| 2463 | int result = count; |
| 2464 | |
| 2465 | if (!capable(CAP_SYS_ADMIN)) |
| 2466 | return -EACCES; |
| 2467 | |
| 2468 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 2469 | if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) { |
| 2470 | ioa_cfg->ioa_is_dead = 0; |
| 2471 | ioa_cfg->reset_retries = 0; |
| 2472 | ioa_cfg->in_ioa_bringdown = 0; |
| 2473 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
| 2474 | } |
| 2475 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2476 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
| 2477 | |
| 2478 | return result; |
| 2479 | } |
| 2480 | |
| 2481 | static struct class_device_attribute ipr_ioa_state_attr = { |
| 2482 | .attr = { |
| 2483 | .name = "state", |
| 2484 | .mode = S_IRUGO | S_IWUSR, |
| 2485 | }, |
| 2486 | .show = ipr_show_adapter_state, |
| 2487 | .store = ipr_store_adapter_state |
| 2488 | }; |
| 2489 | |
| 2490 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2491 | * ipr_store_reset_adapter - Reset the adapter |
| 2492 | * @class_dev: class_device struct |
| 2493 | * @buf: buffer |
| 2494 | * @count: buffer size |
| 2495 | * |
| 2496 | * This function will reset the adapter. |
| 2497 | * |
| 2498 | * Return value: |
| 2499 | * count on success / other on failure |
| 2500 | **/ |
| 2501 | static ssize_t ipr_store_reset_adapter(struct class_device *class_dev, |
| 2502 | const char *buf, size_t count) |
| 2503 | { |
| 2504 | struct Scsi_Host *shost = class_to_shost(class_dev); |
| 2505 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 2506 | unsigned long lock_flags; |
| 2507 | int result = count; |
| 2508 | |
| 2509 | if (!capable(CAP_SYS_ADMIN)) |
| 2510 | return -EACCES; |
| 2511 | |
| 2512 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 2513 | if (!ioa_cfg->in_reset_reload) |
| 2514 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); |
| 2515 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2516 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
| 2517 | |
| 2518 | return result; |
| 2519 | } |
| 2520 | |
| 2521 | static struct class_device_attribute ipr_ioa_reset_attr = { |
| 2522 | .attr = { |
| 2523 | .name = "reset_host", |
| 2524 | .mode = S_IWUSR, |
| 2525 | }, |
| 2526 | .store = ipr_store_reset_adapter |
| 2527 | }; |
| 2528 | |
| 2529 | /** |
| 2530 | * ipr_alloc_ucode_buffer - Allocates a microcode download buffer |
| 2531 | * @buf_len: buffer length |
| 2532 | * |
| 2533 | * Allocates a DMA'able buffer in chunks and assembles a scatter/gather |
| 2534 | * list to use for microcode download |
| 2535 | * |
| 2536 | * Return value: |
| 2537 | * pointer to sglist / NULL on failure |
| 2538 | **/ |
| 2539 | static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) |
| 2540 | { |
| 2541 | int sg_size, order, bsize_elem, num_elem, i, j; |
| 2542 | struct ipr_sglist *sglist; |
| 2543 | struct scatterlist *scatterlist; |
| 2544 | struct page *page; |
| 2545 | |
| 2546 | /* Get the minimum size per scatter/gather element */ |
| 2547 | sg_size = buf_len / (IPR_MAX_SGLIST - 1); |
| 2548 | |
| 2549 | /* Get the actual size per element */ |
| 2550 | order = get_order(sg_size); |
| 2551 | |
| 2552 | /* Determine the actual number of bytes per element */ |
| 2553 | bsize_elem = PAGE_SIZE * (1 << order); |
| 2554 | |
| 2555 | /* Determine the actual number of sg entries needed */ |
| 2556 | if (buf_len % bsize_elem) |
| 2557 | num_elem = (buf_len / bsize_elem) + 1; |
| 2558 | else |
| 2559 | num_elem = buf_len / bsize_elem; |
| 2560 | |
| 2561 | /* Allocate a scatter/gather list for the DMA */ |
brking@us.ibm.com | 0bc42e3 | 2005-11-01 17:01:20 -0600 | [diff] [blame] | 2562 | sglist = kzalloc(sizeof(struct ipr_sglist) + |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2563 | (sizeof(struct scatterlist) * (num_elem - 1)), |
| 2564 | GFP_KERNEL); |
| 2565 | |
| 2566 | if (sglist == NULL) { |
| 2567 | ipr_trace; |
| 2568 | return NULL; |
| 2569 | } |
| 2570 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2571 | scatterlist = sglist->scatterlist; |
| 2572 | |
| 2573 | sglist->order = order; |
| 2574 | sglist->num_sg = num_elem; |
| 2575 | |
| 2576 | /* Allocate a bunch of sg elements */ |
| 2577 | for (i = 0; i < num_elem; i++) { |
| 2578 | page = alloc_pages(GFP_KERNEL, order); |
| 2579 | if (!page) { |
| 2580 | ipr_trace; |
| 2581 | |
| 2582 | /* Free up what we already allocated */ |
| 2583 | for (j = i - 1; j >= 0; j--) |
| 2584 | __free_pages(scatterlist[j].page, order); |
| 2585 | kfree(sglist); |
| 2586 | return NULL; |
| 2587 | } |
| 2588 | |
| 2589 | scatterlist[i].page = page; |
| 2590 | } |
| 2591 | |
| 2592 | return sglist; |
| 2593 | } |
| 2594 | |
| 2595 | /** |
| 2596 | * ipr_free_ucode_buffer - Frees a microcode download buffer |
| 2597 | * @p_dnld: scatter/gather list pointer |
| 2598 | * |
| 2599 | * Free a DMA'able ucode download buffer previously allocated with |
| 2600 | * ipr_alloc_ucode_buffer |
| 2601 | * |
| 2602 | * Return value: |
| 2603 | * nothing |
| 2604 | **/ |
| 2605 | static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) |
| 2606 | { |
| 2607 | int i; |
| 2608 | |
| 2609 | for (i = 0; i < sglist->num_sg; i++) |
| 2610 | __free_pages(sglist->scatterlist[i].page, sglist->order); |
| 2611 | |
| 2612 | kfree(sglist); |
| 2613 | } |
| 2614 | |
| 2615 | /** |
| 2616 | * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer |
| 2617 | * @sglist: scatter/gather list pointer |
| 2618 | * @buffer: buffer pointer |
| 2619 | * @len: buffer length |
| 2620 | * |
| 2621 | * Copy a microcode image from a user buffer into a buffer allocated by |
| 2622 | * ipr_alloc_ucode_buffer |
| 2623 | * |
| 2624 | * Return value: |
| 2625 | * 0 on success / other on failure |
| 2626 | **/ |
| 2627 | static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, |
| 2628 | u8 *buffer, u32 len) |
| 2629 | { |
| 2630 | int bsize_elem, i, result = 0; |
| 2631 | struct scatterlist *scatterlist; |
| 2632 | void *kaddr; |
| 2633 | |
| 2634 | /* Determine the actual number of bytes per element */ |
| 2635 | bsize_elem = PAGE_SIZE * (1 << sglist->order); |
| 2636 | |
| 2637 | scatterlist = sglist->scatterlist; |
| 2638 | |
| 2639 | for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) { |
| 2640 | kaddr = kmap(scatterlist[i].page); |
| 2641 | memcpy(kaddr, buffer, bsize_elem); |
| 2642 | kunmap(scatterlist[i].page); |
| 2643 | |
| 2644 | scatterlist[i].length = bsize_elem; |
| 2645 | |
| 2646 | if (result != 0) { |
| 2647 | ipr_trace; |
| 2648 | return result; |
| 2649 | } |
| 2650 | } |
| 2651 | |
| 2652 | if (len % bsize_elem) { |
| 2653 | kaddr = kmap(scatterlist[i].page); |
| 2654 | memcpy(kaddr, buffer, len % bsize_elem); |
| 2655 | kunmap(scatterlist[i].page); |
| 2656 | |
| 2657 | scatterlist[i].length = len % bsize_elem; |
| 2658 | } |
| 2659 | |
| 2660 | sglist->buffer_len = len; |
| 2661 | return result; |
| 2662 | } |
| 2663 | |
| 2664 | /** |
brking@us.ibm.com | 12baa42 | 2005-11-01 17:01:27 -0600 | [diff] [blame] | 2665 | * ipr_build_ucode_ioadl - Build a microcode download IOADL |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2666 | * @ipr_cmd: ipr command struct |
| 2667 | * @sglist: scatter/gather list |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2668 | * |
brking@us.ibm.com | 12baa42 | 2005-11-01 17:01:27 -0600 | [diff] [blame] | 2669 | * Builds a microcode download IOA data list (IOADL). |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2670 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2671 | **/ |
brking@us.ibm.com | 12baa42 | 2005-11-01 17:01:27 -0600 | [diff] [blame] | 2672 | static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, |
| 2673 | struct ipr_sglist *sglist) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2674 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2675 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
| 2676 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; |
| 2677 | struct scatterlist *scatterlist = sglist->scatterlist; |
| 2678 | int i; |
| 2679 | |
brking@us.ibm.com | 12baa42 | 2005-11-01 17:01:27 -0600 | [diff] [blame] | 2680 | ipr_cmd->dma_use_sg = sglist->num_dma_sg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2681 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
brking@us.ibm.com | 12baa42 | 2005-11-01 17:01:27 -0600 | [diff] [blame] | 2682 | ioarcb->write_data_transfer_length = cpu_to_be32(sglist->buffer_len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2683 | ioarcb->write_ioadl_len = |
| 2684 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); |
| 2685 | |
| 2686 | for (i = 0; i < ipr_cmd->dma_use_sg; i++) { |
| 2687 | ioadl[i].flags_and_data_len = |
| 2688 | cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i])); |
| 2689 | ioadl[i].address = |
| 2690 | cpu_to_be32(sg_dma_address(&scatterlist[i])); |
| 2691 | } |
| 2692 | |
brking@us.ibm.com | 12baa42 | 2005-11-01 17:01:27 -0600 | [diff] [blame] | 2693 | ioadl[i-1].flags_and_data_len |= |
| 2694 | cpu_to_be32(IPR_IOADL_FLAGS_LAST); |
| 2695 | } |
| 2696 | |
| 2697 | /** |
| 2698 | * ipr_update_ioa_ucode - Update IOA's microcode |
| 2699 | * @ioa_cfg: ioa config struct |
| 2700 | * @sglist: scatter/gather list |
| 2701 | * |
| 2702 | * Initiate an adapter reset to update the IOA's microcode |
| 2703 | * |
| 2704 | * Return value: |
| 2705 | * 0 on success / -EIO on failure |
| 2706 | **/ |
| 2707 | static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, |
| 2708 | struct ipr_sglist *sglist) |
| 2709 | { |
| 2710 | unsigned long lock_flags; |
| 2711 | |
| 2712 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 2713 | |
| 2714 | if (ioa_cfg->ucode_sglist) { |
| 2715 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2716 | dev_err(&ioa_cfg->pdev->dev, |
| 2717 | "Microcode download already in progress\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2718 | return -EIO; |
| 2719 | } |
| 2720 | |
brking@us.ibm.com | 12baa42 | 2005-11-01 17:01:27 -0600 | [diff] [blame] | 2721 | sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist, |
| 2722 | sglist->num_sg, DMA_TO_DEVICE); |
| 2723 | |
| 2724 | if (!sglist->num_dma_sg) { |
| 2725 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2726 | dev_err(&ioa_cfg->pdev->dev, |
| 2727 | "Failed to map microcode download buffer!\n"); |
| 2728 | return -EIO; |
| 2729 | } |
| 2730 | |
| 2731 | ioa_cfg->ucode_sglist = sglist; |
| 2732 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); |
| 2733 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2734 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
| 2735 | |
| 2736 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 2737 | ioa_cfg->ucode_sglist = NULL; |
| 2738 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2739 | return 0; |
| 2740 | } |
| 2741 | |
| 2742 | /** |
| 2743 | * ipr_store_update_fw - Update the firmware on the adapter |
| 2744 | * @class_dev: class_device struct |
| 2745 | * @buf: buffer |
| 2746 | * @count: buffer size |
| 2747 | * |
| 2748 | * This function will update the firmware on the adapter. |
| 2749 | * |
| 2750 | * Return value: |
| 2751 | * count on success / other on failure |
| 2752 | **/ |
| 2753 | static ssize_t ipr_store_update_fw(struct class_device *class_dev, |
| 2754 | const char *buf, size_t count) |
| 2755 | { |
| 2756 | struct Scsi_Host *shost = class_to_shost(class_dev); |
| 2757 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 2758 | struct ipr_ucode_image_header *image_hdr; |
| 2759 | const struct firmware *fw_entry; |
| 2760 | struct ipr_sglist *sglist; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2761 | char fname[100]; |
| 2762 | char *src; |
| 2763 | int len, result, dnld_size; |
| 2764 | |
| 2765 | if (!capable(CAP_SYS_ADMIN)) |
| 2766 | return -EACCES; |
| 2767 | |
| 2768 | len = snprintf(fname, 99, "%s", buf); |
| 2769 | fname[len-1] = '\0'; |
| 2770 | |
| 2771 | if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) { |
| 2772 | dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname); |
| 2773 | return -EIO; |
| 2774 | } |
| 2775 | |
| 2776 | image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; |
| 2777 | |
| 2778 | if (be32_to_cpu(image_hdr->header_length) > fw_entry->size || |
| 2779 | (ioa_cfg->vpd_cbs->page3_data.card_type && |
| 2780 | ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) { |
| 2781 | dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n"); |
| 2782 | release_firmware(fw_entry); |
| 2783 | return -EINVAL; |
| 2784 | } |
| 2785 | |
| 2786 | src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); |
| 2787 | dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); |
| 2788 | sglist = ipr_alloc_ucode_buffer(dnld_size); |
| 2789 | |
| 2790 | if (!sglist) { |
| 2791 | dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n"); |
| 2792 | release_firmware(fw_entry); |
| 2793 | return -ENOMEM; |
| 2794 | } |
| 2795 | |
| 2796 | result = ipr_copy_ucode_buffer(sglist, src, dnld_size); |
| 2797 | |
| 2798 | if (result) { |
| 2799 | dev_err(&ioa_cfg->pdev->dev, |
| 2800 | "Microcode buffer copy to DMA buffer failed\n"); |
brking@us.ibm.com | 12baa42 | 2005-11-01 17:01:27 -0600 | [diff] [blame] | 2801 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2802 | } |
| 2803 | |
brking@us.ibm.com | 12baa42 | 2005-11-01 17:01:27 -0600 | [diff] [blame] | 2804 | result = ipr_update_ioa_ucode(ioa_cfg, sglist); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2805 | |
brking@us.ibm.com | 12baa42 | 2005-11-01 17:01:27 -0600 | [diff] [blame] | 2806 | if (!result) |
| 2807 | result = count; |
| 2808 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2809 | ipr_free_ucode_buffer(sglist); |
| 2810 | release_firmware(fw_entry); |
brking@us.ibm.com | 12baa42 | 2005-11-01 17:01:27 -0600 | [diff] [blame] | 2811 | return result; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2812 | } |
| 2813 | |
| 2814 | static struct class_device_attribute ipr_update_fw_attr = { |
| 2815 | .attr = { |
| 2816 | .name = "update_fw", |
| 2817 | .mode = S_IWUSR, |
| 2818 | }, |
| 2819 | .store = ipr_store_update_fw |
| 2820 | }; |
| 2821 | |
| 2822 | static struct class_device_attribute *ipr_ioa_attrs[] = { |
| 2823 | &ipr_fw_version_attr, |
| 2824 | &ipr_log_level_attr, |
| 2825 | &ipr_diagnostics_attr, |
brking@us.ibm.com | f37eb54 | 2005-11-01 17:01:40 -0600 | [diff] [blame] | 2826 | &ipr_ioa_state_attr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2827 | &ipr_ioa_reset_attr, |
| 2828 | &ipr_update_fw_attr, |
brking@us.ibm.com | 6227504 | 2005-11-01 17:01:14 -0600 | [diff] [blame] | 2829 | &ipr_ioa_cache_attr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2830 | NULL, |
| 2831 | }; |
| 2832 | |
| 2833 | #ifdef CONFIG_SCSI_IPR_DUMP |
| 2834 | /** |
| 2835 | * ipr_read_dump - Dump the adapter |
| 2836 | * @kobj: kobject struct |
| 2837 | * @buf: buffer |
| 2838 | * @off: offset |
| 2839 | * @count: buffer size |
| 2840 | * |
| 2841 | * Return value: |
| 2842 | * number of bytes printed to buffer |
| 2843 | **/ |
| 2844 | static ssize_t ipr_read_dump(struct kobject *kobj, char *buf, |
| 2845 | loff_t off, size_t count) |
| 2846 | { |
| 2847 | struct class_device *cdev = container_of(kobj,struct class_device,kobj); |
| 2848 | struct Scsi_Host *shost = class_to_shost(cdev); |
| 2849 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 2850 | struct ipr_dump *dump; |
| 2851 | unsigned long lock_flags = 0; |
| 2852 | char *src; |
| 2853 | int len; |
| 2854 | size_t rc = count; |
| 2855 | |
| 2856 | if (!capable(CAP_SYS_ADMIN)) |
| 2857 | return -EACCES; |
| 2858 | |
| 2859 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 2860 | dump = ioa_cfg->dump; |
| 2861 | |
| 2862 | if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { |
| 2863 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2864 | return 0; |
| 2865 | } |
| 2866 | kref_get(&dump->kref); |
| 2867 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2868 | |
| 2869 | if (off > dump->driver_dump.hdr.len) { |
| 2870 | kref_put(&dump->kref, ipr_release_dump); |
| 2871 | return 0; |
| 2872 | } |
| 2873 | |
| 2874 | if (off + count > dump->driver_dump.hdr.len) { |
| 2875 | count = dump->driver_dump.hdr.len - off; |
| 2876 | rc = count; |
| 2877 | } |
| 2878 | |
| 2879 | if (count && off < sizeof(dump->driver_dump)) { |
| 2880 | if (off + count > sizeof(dump->driver_dump)) |
| 2881 | len = sizeof(dump->driver_dump) - off; |
| 2882 | else |
| 2883 | len = count; |
| 2884 | src = (u8 *)&dump->driver_dump + off; |
| 2885 | memcpy(buf, src, len); |
| 2886 | buf += len; |
| 2887 | off += len; |
| 2888 | count -= len; |
| 2889 | } |
| 2890 | |
| 2891 | off -= sizeof(dump->driver_dump); |
| 2892 | |
| 2893 | if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) { |
| 2894 | if (off + count > offsetof(struct ipr_ioa_dump, ioa_data)) |
| 2895 | len = offsetof(struct ipr_ioa_dump, ioa_data) - off; |
| 2896 | else |
| 2897 | len = count; |
| 2898 | src = (u8 *)&dump->ioa_dump + off; |
| 2899 | memcpy(buf, src, len); |
| 2900 | buf += len; |
| 2901 | off += len; |
| 2902 | count -= len; |
| 2903 | } |
| 2904 | |
| 2905 | off -= offsetof(struct ipr_ioa_dump, ioa_data); |
| 2906 | |
| 2907 | while (count) { |
| 2908 | if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) |
| 2909 | len = PAGE_ALIGN(off) - off; |
| 2910 | else |
| 2911 | len = count; |
| 2912 | src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; |
| 2913 | src += off & ~PAGE_MASK; |
| 2914 | memcpy(buf, src, len); |
| 2915 | buf += len; |
| 2916 | off += len; |
| 2917 | count -= len; |
| 2918 | } |
| 2919 | |
| 2920 | kref_put(&dump->kref, ipr_release_dump); |
| 2921 | return rc; |
| 2922 | } |
| 2923 | |
| 2924 | /** |
| 2925 | * ipr_alloc_dump - Prepare for adapter dump |
| 2926 | * @ioa_cfg: ioa config struct |
| 2927 | * |
| 2928 | * Return value: |
| 2929 | * 0 on success / other on failure |
| 2930 | **/ |
| 2931 | static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) |
| 2932 | { |
| 2933 | struct ipr_dump *dump; |
| 2934 | unsigned long lock_flags = 0; |
| 2935 | |
| 2936 | ENTER; |
brking@us.ibm.com | 0bc42e3 | 2005-11-01 17:01:20 -0600 | [diff] [blame] | 2937 | dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2938 | |
| 2939 | if (!dump) { |
| 2940 | ipr_err("Dump memory allocation failed\n"); |
| 2941 | return -ENOMEM; |
| 2942 | } |
| 2943 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2944 | kref_init(&dump->kref); |
| 2945 | dump->ioa_cfg = ioa_cfg; |
| 2946 | |
| 2947 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 2948 | |
| 2949 | if (INACTIVE != ioa_cfg->sdt_state) { |
| 2950 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2951 | kfree(dump); |
| 2952 | return 0; |
| 2953 | } |
| 2954 | |
| 2955 | ioa_cfg->dump = dump; |
| 2956 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; |
| 2957 | if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) { |
| 2958 | ioa_cfg->dump_taken = 1; |
| 2959 | schedule_work(&ioa_cfg->work_q); |
| 2960 | } |
| 2961 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2962 | |
| 2963 | LEAVE; |
| 2964 | return 0; |
| 2965 | } |
| 2966 | |
| 2967 | /** |
| 2968 | * ipr_free_dump - Free adapter dump memory |
| 2969 | * @ioa_cfg: ioa config struct |
| 2970 | * |
| 2971 | * Return value: |
| 2972 | * 0 on success / other on failure |
| 2973 | **/ |
| 2974 | static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) |
| 2975 | { |
| 2976 | struct ipr_dump *dump; |
| 2977 | unsigned long lock_flags = 0; |
| 2978 | |
| 2979 | ENTER; |
| 2980 | |
| 2981 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 2982 | dump = ioa_cfg->dump; |
| 2983 | if (!dump) { |
| 2984 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2985 | return 0; |
| 2986 | } |
| 2987 | |
| 2988 | ioa_cfg->dump = NULL; |
| 2989 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2990 | |
| 2991 | kref_put(&dump->kref, ipr_release_dump); |
| 2992 | |
| 2993 | LEAVE; |
| 2994 | return 0; |
| 2995 | } |
| 2996 | |
| 2997 | /** |
| 2998 | * ipr_write_dump - Setup dump state of adapter |
| 2999 | * @kobj: kobject struct |
| 3000 | * @buf: buffer |
| 3001 | * @off: offset |
| 3002 | * @count: buffer size |
| 3003 | * |
| 3004 | * Return value: |
| 3005 | * number of bytes printed to buffer |
| 3006 | **/ |
| 3007 | static ssize_t ipr_write_dump(struct kobject *kobj, char *buf, |
| 3008 | loff_t off, size_t count) |
| 3009 | { |
| 3010 | struct class_device *cdev = container_of(kobj,struct class_device,kobj); |
| 3011 | struct Scsi_Host *shost = class_to_shost(cdev); |
| 3012 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 3013 | int rc; |
| 3014 | |
| 3015 | if (!capable(CAP_SYS_ADMIN)) |
| 3016 | return -EACCES; |
| 3017 | |
| 3018 | if (buf[0] == '1') |
| 3019 | rc = ipr_alloc_dump(ioa_cfg); |
| 3020 | else if (buf[0] == '0') |
| 3021 | rc = ipr_free_dump(ioa_cfg); |
| 3022 | else |
| 3023 | return -EINVAL; |
| 3024 | |
| 3025 | if (rc) |
| 3026 | return rc; |
| 3027 | else |
| 3028 | return count; |
| 3029 | } |
| 3030 | |
| 3031 | static struct bin_attribute ipr_dump_attr = { |
| 3032 | .attr = { |
| 3033 | .name = "dump", |
| 3034 | .mode = S_IRUSR | S_IWUSR, |
| 3035 | }, |
| 3036 | .size = 0, |
| 3037 | .read = ipr_read_dump, |
| 3038 | .write = ipr_write_dump |
| 3039 | }; |
| 3040 | #else |
| 3041 | static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; |
| 3042 | #endif |
| 3043 | |
| 3044 | /** |
| 3045 | * ipr_change_queue_depth - Change the device's queue depth |
| 3046 | * @sdev: scsi device struct |
| 3047 | * @qdepth: depth to set |
| 3048 | * |
| 3049 | * Return value: |
| 3050 | * actual depth set |
| 3051 | **/ |
| 3052 | static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth) |
| 3053 | { |
| 3054 | scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); |
| 3055 | return sdev->queue_depth; |
| 3056 | } |
| 3057 | |
| 3058 | /** |
| 3059 | * ipr_change_queue_type - Change the device's queue type |
| 3060 | * @dsev: scsi device struct |
| 3061 | * @tag_type: type of tags to use |
| 3062 | * |
| 3063 | * Return value: |
| 3064 | * actual queue type set |
| 3065 | **/ |
| 3066 | static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type) |
| 3067 | { |
| 3068 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
| 3069 | struct ipr_resource_entry *res; |
| 3070 | unsigned long lock_flags = 0; |
| 3071 | |
| 3072 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 3073 | res = (struct ipr_resource_entry *)sdev->hostdata; |
| 3074 | |
| 3075 | if (res) { |
| 3076 | if (ipr_is_gscsi(res) && sdev->tagged_supported) { |
| 3077 | /* |
| 3078 | * We don't bother quiescing the device here since the |
| 3079 | * adapter firmware does it for us. |
| 3080 | */ |
| 3081 | scsi_set_tag_type(sdev, tag_type); |
| 3082 | |
| 3083 | if (tag_type) |
| 3084 | scsi_activate_tcq(sdev, sdev->queue_depth); |
| 3085 | else |
| 3086 | scsi_deactivate_tcq(sdev, sdev->queue_depth); |
| 3087 | } else |
| 3088 | tag_type = 0; |
| 3089 | } else |
| 3090 | tag_type = 0; |
| 3091 | |
| 3092 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3093 | return tag_type; |
| 3094 | } |
| 3095 | |
| 3096 | /** |
| 3097 | * ipr_show_adapter_handle - Show the adapter's resource handle for this device |
| 3098 | * @dev: device struct |
| 3099 | * @buf: buffer |
| 3100 | * |
| 3101 | * Return value: |
| 3102 | * number of bytes printed to buffer |
| 3103 | **/ |
Yani Ioannou | 10523b3 | 2005-05-17 06:43:37 -0400 | [diff] [blame] | 3104 | static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3105 | { |
| 3106 | struct scsi_device *sdev = to_scsi_device(dev); |
| 3107 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
| 3108 | struct ipr_resource_entry *res; |
| 3109 | unsigned long lock_flags = 0; |
| 3110 | ssize_t len = -ENXIO; |
| 3111 | |
| 3112 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 3113 | res = (struct ipr_resource_entry *)sdev->hostdata; |
| 3114 | if (res) |
| 3115 | len = snprintf(buf, PAGE_SIZE, "%08X\n", res->cfgte.res_handle); |
| 3116 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3117 | return len; |
| 3118 | } |
| 3119 | |
| 3120 | static struct device_attribute ipr_adapter_handle_attr = { |
| 3121 | .attr = { |
| 3122 | .name = "adapter_handle", |
| 3123 | .mode = S_IRUSR, |
| 3124 | }, |
| 3125 | .show = ipr_show_adapter_handle |
| 3126 | }; |
| 3127 | |
| 3128 | static struct device_attribute *ipr_dev_attrs[] = { |
| 3129 | &ipr_adapter_handle_attr, |
| 3130 | NULL, |
| 3131 | }; |
| 3132 | |
| 3133 | /** |
| 3134 | * ipr_biosparam - Return the HSC mapping |
| 3135 | * @sdev: scsi device struct |
| 3136 | * @block_device: block device pointer |
| 3137 | * @capacity: capacity of the device |
| 3138 | * @parm: Array containing returned HSC values. |
| 3139 | * |
| 3140 | * This function generates the HSC parms that fdisk uses. |
| 3141 | * We want to make sure we return something that places partitions |
| 3142 | * on 4k boundaries for best performance with the IOA. |
| 3143 | * |
| 3144 | * Return value: |
| 3145 | * 0 on success |
| 3146 | **/ |
| 3147 | static int ipr_biosparam(struct scsi_device *sdev, |
| 3148 | struct block_device *block_device, |
| 3149 | sector_t capacity, int *parm) |
| 3150 | { |
| 3151 | int heads, sectors; |
| 3152 | sector_t cylinders; |
| 3153 | |
| 3154 | heads = 128; |
| 3155 | sectors = 32; |
| 3156 | |
| 3157 | cylinders = capacity; |
| 3158 | sector_div(cylinders, (128 * 32)); |
| 3159 | |
| 3160 | /* return result */ |
| 3161 | parm[0] = heads; |
| 3162 | parm[1] = sectors; |
| 3163 | parm[2] = cylinders; |
| 3164 | |
| 3165 | return 0; |
| 3166 | } |
| 3167 | |
| 3168 | /** |
| 3169 | * ipr_slave_destroy - Unconfigure a SCSI device |
| 3170 | * @sdev: scsi device struct |
| 3171 | * |
| 3172 | * Return value: |
| 3173 | * nothing |
| 3174 | **/ |
| 3175 | static void ipr_slave_destroy(struct scsi_device *sdev) |
| 3176 | { |
| 3177 | struct ipr_resource_entry *res; |
| 3178 | struct ipr_ioa_cfg *ioa_cfg; |
| 3179 | unsigned long lock_flags = 0; |
| 3180 | |
| 3181 | ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; |
| 3182 | |
| 3183 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 3184 | res = (struct ipr_resource_entry *) sdev->hostdata; |
| 3185 | if (res) { |
| 3186 | sdev->hostdata = NULL; |
| 3187 | res->sdev = NULL; |
| 3188 | } |
| 3189 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3190 | } |
| 3191 | |
| 3192 | /** |
| 3193 | * ipr_slave_configure - Configure a SCSI device |
| 3194 | * @sdev: scsi device struct |
| 3195 | * |
| 3196 | * This function configures the specified scsi device. |
| 3197 | * |
| 3198 | * Return value: |
| 3199 | * 0 on success |
| 3200 | **/ |
| 3201 | static int ipr_slave_configure(struct scsi_device *sdev) |
| 3202 | { |
| 3203 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; |
| 3204 | struct ipr_resource_entry *res; |
| 3205 | unsigned long lock_flags = 0; |
| 3206 | |
| 3207 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 3208 | res = sdev->hostdata; |
| 3209 | if (res) { |
| 3210 | if (ipr_is_af_dasd_device(res)) |
| 3211 | sdev->type = TYPE_RAID; |
brking@us.ibm.com | 0726ce2 | 2005-11-01 17:01:01 -0600 | [diff] [blame] | 3212 | if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3213 | sdev->scsi_level = 4; |
brking@us.ibm.com | 0726ce2 | 2005-11-01 17:01:01 -0600 | [diff] [blame] | 3214 | sdev->no_uld_attach = 1; |
| 3215 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3216 | if (ipr_is_vset_device(res)) { |
| 3217 | sdev->timeout = IPR_VSET_RW_TIMEOUT; |
| 3218 | blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); |
| 3219 | } |
Brian King | e4fbf44 | 2006-03-29 09:37:22 -0600 | [diff] [blame] | 3220 | if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3221 | sdev->allow_restart = 1; |
| 3222 | scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); |
| 3223 | } |
| 3224 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3225 | return 0; |
| 3226 | } |
| 3227 | |
| 3228 | /** |
| 3229 | * ipr_slave_alloc - Prepare for commands to a device. |
| 3230 | * @sdev: scsi device struct |
| 3231 | * |
| 3232 | * This function saves a pointer to the resource entry |
| 3233 | * in the scsi device struct if the device exists. We |
| 3234 | * can then use this pointer in ipr_queuecommand when |
| 3235 | * handling new commands. |
| 3236 | * |
| 3237 | * Return value: |
brking@us.ibm.com | 692aebf | 2005-11-01 17:01:07 -0600 | [diff] [blame] | 3238 | * 0 on success / -ENXIO if device does not exist |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3239 | **/ |
| 3240 | static int ipr_slave_alloc(struct scsi_device *sdev) |
| 3241 | { |
| 3242 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; |
| 3243 | struct ipr_resource_entry *res; |
| 3244 | unsigned long lock_flags; |
brking@us.ibm.com | 692aebf | 2005-11-01 17:01:07 -0600 | [diff] [blame] | 3245 | int rc = -ENXIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3246 | |
| 3247 | sdev->hostdata = NULL; |
| 3248 | |
| 3249 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 3250 | |
| 3251 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
| 3252 | if ((res->cfgte.res_addr.bus == sdev->channel) && |
| 3253 | (res->cfgte.res_addr.target == sdev->id) && |
| 3254 | (res->cfgte.res_addr.lun == sdev->lun)) { |
| 3255 | res->sdev = sdev; |
| 3256 | res->add_to_ml = 0; |
| 3257 | res->in_erp = 0; |
| 3258 | sdev->hostdata = res; |
brking@us.ibm.com | ee0a90f | 2005-11-01 17:02:22 -0600 | [diff] [blame] | 3259 | if (!ipr_is_naca_model(res)) |
| 3260 | res->needs_sync_complete = 1; |
brking@us.ibm.com | 692aebf | 2005-11-01 17:01:07 -0600 | [diff] [blame] | 3261 | rc = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3262 | break; |
| 3263 | } |
| 3264 | } |
| 3265 | |
| 3266 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3267 | |
brking@us.ibm.com | 692aebf | 2005-11-01 17:01:07 -0600 | [diff] [blame] | 3268 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3269 | } |
| 3270 | |
| 3271 | /** |
| 3272 | * ipr_eh_host_reset - Reset the host adapter |
| 3273 | * @scsi_cmd: scsi command struct |
| 3274 | * |
| 3275 | * Return value: |
| 3276 | * SUCCESS / FAILED |
| 3277 | **/ |
Jeff Garzik | df0ae24 | 2005-05-28 07:57:14 -0400 | [diff] [blame] | 3278 | static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3279 | { |
| 3280 | struct ipr_ioa_cfg *ioa_cfg; |
| 3281 | int rc; |
| 3282 | |
| 3283 | ENTER; |
| 3284 | ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; |
| 3285 | |
| 3286 | dev_err(&ioa_cfg->pdev->dev, |
| 3287 | "Adapter being reset as a result of error recovery.\n"); |
| 3288 | |
| 3289 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) |
| 3290 | ioa_cfg->sdt_state = GET_DUMP; |
| 3291 | |
| 3292 | rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV); |
| 3293 | |
| 3294 | LEAVE; |
| 3295 | return rc; |
| 3296 | } |
| 3297 | |
Jeff Garzik | df0ae24 | 2005-05-28 07:57:14 -0400 | [diff] [blame] | 3298 | static int ipr_eh_host_reset(struct scsi_cmnd * cmd) |
| 3299 | { |
| 3300 | int rc; |
| 3301 | |
| 3302 | spin_lock_irq(cmd->device->host->host_lock); |
| 3303 | rc = __ipr_eh_host_reset(cmd); |
| 3304 | spin_unlock_irq(cmd->device->host->host_lock); |
| 3305 | |
| 3306 | return rc; |
| 3307 | } |
| 3308 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3309 | /** |
Brian King | c651309 | 2006-03-29 09:37:43 -0600 | [diff] [blame] | 3310 | * ipr_device_reset - Reset the device |
| 3311 | * @ioa_cfg: ioa config struct |
| 3312 | * @res: resource entry struct |
| 3313 | * |
| 3314 | * This function issues a device reset to the affected device. |
| 3315 | * If the device is a SCSI device, a LUN reset will be sent |
| 3316 | * to the device first. If that does not work, a target reset |
| 3317 | * will be sent. |
| 3318 | * |
| 3319 | * Return value: |
| 3320 | * 0 on success / non-zero on failure |
| 3321 | **/ |
| 3322 | static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg, |
| 3323 | struct ipr_resource_entry *res) |
| 3324 | { |
| 3325 | struct ipr_cmnd *ipr_cmd; |
| 3326 | struct ipr_ioarcb *ioarcb; |
| 3327 | struct ipr_cmd_pkt *cmd_pkt; |
| 3328 | u32 ioasc; |
| 3329 | |
| 3330 | ENTER; |
| 3331 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
| 3332 | ioarcb = &ipr_cmd->ioarcb; |
| 3333 | cmd_pkt = &ioarcb->cmd_pkt; |
| 3334 | |
| 3335 | ioarcb->res_handle = res->cfgte.res_handle; |
| 3336 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; |
| 3337 | cmd_pkt->cdb[0] = IPR_RESET_DEVICE; |
| 3338 | |
| 3339 | ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); |
| 3340 | ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); |
| 3341 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); |
| 3342 | |
| 3343 | LEAVE; |
| 3344 | return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0); |
| 3345 | } |
| 3346 | |
| 3347 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3348 | * ipr_eh_dev_reset - Reset the device |
| 3349 | * @scsi_cmd: scsi command struct |
| 3350 | * |
| 3351 | * This function issues a device reset to the affected device. |
| 3352 | * A LUN reset will be sent to the device first. If that does |
| 3353 | * not work, a target reset will be sent. |
| 3354 | * |
| 3355 | * Return value: |
| 3356 | * SUCCESS / FAILED |
| 3357 | **/ |
Jeff Garzik | 94d0e7b | 2005-05-28 07:55:48 -0400 | [diff] [blame] | 3358 | static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3359 | { |
| 3360 | struct ipr_cmnd *ipr_cmd; |
| 3361 | struct ipr_ioa_cfg *ioa_cfg; |
| 3362 | struct ipr_resource_entry *res; |
Brian King | c651309 | 2006-03-29 09:37:43 -0600 | [diff] [blame] | 3363 | int rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3364 | |
| 3365 | ENTER; |
| 3366 | ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; |
| 3367 | res = scsi_cmd->device->hostdata; |
| 3368 | |
brking@us.ibm.com | eeb8830 | 2005-11-01 17:02:29 -0600 | [diff] [blame] | 3369 | if (!res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3370 | return FAILED; |
| 3371 | |
| 3372 | /* |
| 3373 | * If we are currently going through reset/reload, return failed. This will force the |
| 3374 | * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the |
| 3375 | * reset to complete |
| 3376 | */ |
| 3377 | if (ioa_cfg->in_reset_reload) |
| 3378 | return FAILED; |
| 3379 | if (ioa_cfg->ioa_is_dead) |
| 3380 | return FAILED; |
| 3381 | |
| 3382 | list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { |
| 3383 | if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) { |
| 3384 | if (ipr_cmd->scsi_cmd) |
| 3385 | ipr_cmd->done = ipr_scsi_eh_done; |
| 3386 | } |
| 3387 | } |
| 3388 | |
| 3389 | res->resetting_device = 1; |
Brian King | fb3ed3c | 2006-03-29 09:37:37 -0600 | [diff] [blame] | 3390 | scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n"); |
Brian King | c651309 | 2006-03-29 09:37:43 -0600 | [diff] [blame] | 3391 | rc = ipr_device_reset(ioa_cfg, res); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3392 | res->resetting_device = 0; |
| 3393 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3394 | LEAVE; |
Brian King | c651309 | 2006-03-29 09:37:43 -0600 | [diff] [blame] | 3395 | return (rc ? FAILED : SUCCESS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3396 | } |
| 3397 | |
Jeff Garzik | 94d0e7b | 2005-05-28 07:55:48 -0400 | [diff] [blame] | 3398 | static int ipr_eh_dev_reset(struct scsi_cmnd * cmd) |
| 3399 | { |
| 3400 | int rc; |
| 3401 | |
| 3402 | spin_lock_irq(cmd->device->host->host_lock); |
| 3403 | rc = __ipr_eh_dev_reset(cmd); |
| 3404 | spin_unlock_irq(cmd->device->host->host_lock); |
| 3405 | |
| 3406 | return rc; |
| 3407 | } |
| 3408 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3409 | /** |
| 3410 | * ipr_bus_reset_done - Op done function for bus reset. |
| 3411 | * @ipr_cmd: ipr command struct |
| 3412 | * |
| 3413 | * This function is the op done function for a bus reset |
| 3414 | * |
| 3415 | * Return value: |
| 3416 | * none |
| 3417 | **/ |
| 3418 | static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) |
| 3419 | { |
| 3420 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 3421 | struct ipr_resource_entry *res; |
| 3422 | |
| 3423 | ENTER; |
| 3424 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
| 3425 | if (!memcmp(&res->cfgte.res_handle, &ipr_cmd->ioarcb.res_handle, |
| 3426 | sizeof(res->cfgte.res_handle))) { |
| 3427 | scsi_report_bus_reset(ioa_cfg->host, res->cfgte.res_addr.bus); |
| 3428 | break; |
| 3429 | } |
| 3430 | } |
| 3431 | |
| 3432 | /* |
| 3433 | * If abort has not completed, indicate the reset has, else call the |
| 3434 | * abort's done function to wake the sleeping eh thread |
| 3435 | */ |
| 3436 | if (ipr_cmd->sibling->sibling) |
| 3437 | ipr_cmd->sibling->sibling = NULL; |
| 3438 | else |
| 3439 | ipr_cmd->sibling->done(ipr_cmd->sibling); |
| 3440 | |
| 3441 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); |
| 3442 | LEAVE; |
| 3443 | } |
| 3444 | |
| 3445 | /** |
| 3446 | * ipr_abort_timeout - An abort task has timed out |
| 3447 | * @ipr_cmd: ipr command struct |
| 3448 | * |
| 3449 | * This function handles when an abort task times out. If this |
| 3450 | * happens we issue a bus reset since we have resources tied |
| 3451 | * up that must be freed before returning to the midlayer. |
| 3452 | * |
| 3453 | * Return value: |
| 3454 | * none |
| 3455 | **/ |
| 3456 | static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd) |
| 3457 | { |
| 3458 | struct ipr_cmnd *reset_cmd; |
| 3459 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 3460 | struct ipr_cmd_pkt *cmd_pkt; |
| 3461 | unsigned long lock_flags = 0; |
| 3462 | |
| 3463 | ENTER; |
| 3464 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 3465 | if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { |
| 3466 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3467 | return; |
| 3468 | } |
| 3469 | |
Brian King | fb3ed3c | 2006-03-29 09:37:37 -0600 | [diff] [blame] | 3470 | sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3471 | reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
| 3472 | ipr_cmd->sibling = reset_cmd; |
| 3473 | reset_cmd->sibling = ipr_cmd; |
| 3474 | reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; |
| 3475 | cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; |
| 3476 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; |
| 3477 | cmd_pkt->cdb[0] = IPR_RESET_DEVICE; |
| 3478 | cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; |
| 3479 | |
| 3480 | ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); |
| 3481 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3482 | LEAVE; |
| 3483 | } |
| 3484 | |
| 3485 | /** |
| 3486 | * ipr_cancel_op - Cancel specified op |
| 3487 | * @scsi_cmd: scsi command struct |
| 3488 | * |
| 3489 | * This function cancels specified op. |
| 3490 | * |
| 3491 | * Return value: |
| 3492 | * SUCCESS / FAILED |
| 3493 | **/ |
| 3494 | static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd) |
| 3495 | { |
| 3496 | struct ipr_cmnd *ipr_cmd; |
| 3497 | struct ipr_ioa_cfg *ioa_cfg; |
| 3498 | struct ipr_resource_entry *res; |
| 3499 | struct ipr_cmd_pkt *cmd_pkt; |
| 3500 | u32 ioasc; |
| 3501 | int op_found = 0; |
| 3502 | |
| 3503 | ENTER; |
| 3504 | ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; |
| 3505 | res = scsi_cmd->device->hostdata; |
| 3506 | |
Jeff Garzik | 8fa728a | 2005-05-28 07:54:40 -0400 | [diff] [blame] | 3507 | /* If we are currently going through reset/reload, return failed. |
| 3508 | * This will force the mid-layer to call ipr_eh_host_reset, |
| 3509 | * which will then go to sleep and wait for the reset to complete |
| 3510 | */ |
| 3511 | if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead) |
| 3512 | return FAILED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3513 | if (!res || (!ipr_is_gscsi(res) && !ipr_is_vset_device(res))) |
| 3514 | return FAILED; |
| 3515 | |
| 3516 | list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { |
| 3517 | if (ipr_cmd->scsi_cmd == scsi_cmd) { |
| 3518 | ipr_cmd->done = ipr_scsi_eh_done; |
| 3519 | op_found = 1; |
| 3520 | break; |
| 3521 | } |
| 3522 | } |
| 3523 | |
| 3524 | if (!op_found) |
| 3525 | return SUCCESS; |
| 3526 | |
| 3527 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
| 3528 | ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle; |
| 3529 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; |
| 3530 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; |
| 3531 | cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; |
| 3532 | ipr_cmd->u.sdev = scsi_cmd->device; |
| 3533 | |
Brian King | fb3ed3c | 2006-03-29 09:37:37 -0600 | [diff] [blame] | 3534 | scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n", |
| 3535 | scsi_cmd->cmnd[0]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3536 | ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); |
| 3537 | ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); |
| 3538 | |
| 3539 | /* |
| 3540 | * If the abort task timed out and we sent a bus reset, we will get |
| 3541 | * one the following responses to the abort |
| 3542 | */ |
| 3543 | if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { |
| 3544 | ioasc = 0; |
| 3545 | ipr_trace; |
| 3546 | } |
| 3547 | |
| 3548 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); |
brking@us.ibm.com | ee0a90f | 2005-11-01 17:02:22 -0600 | [diff] [blame] | 3549 | if (!ipr_is_naca_model(res)) |
| 3550 | res->needs_sync_complete = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3551 | |
| 3552 | LEAVE; |
| 3553 | return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS); |
| 3554 | } |
| 3555 | |
| 3556 | /** |
| 3557 | * ipr_eh_abort - Abort a single op |
| 3558 | * @scsi_cmd: scsi command struct |
| 3559 | * |
| 3560 | * Return value: |
| 3561 | * SUCCESS / FAILED |
| 3562 | **/ |
| 3563 | static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd) |
| 3564 | { |
Jeff Garzik | 8fa728a | 2005-05-28 07:54:40 -0400 | [diff] [blame] | 3565 | unsigned long flags; |
| 3566 | int rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3567 | |
| 3568 | ENTER; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3569 | |
Jeff Garzik | 8fa728a | 2005-05-28 07:54:40 -0400 | [diff] [blame] | 3570 | spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); |
| 3571 | rc = ipr_cancel_op(scsi_cmd); |
| 3572 | spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3573 | |
| 3574 | LEAVE; |
Jeff Garzik | 8fa728a | 2005-05-28 07:54:40 -0400 | [diff] [blame] | 3575 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3576 | } |
| 3577 | |
| 3578 | /** |
| 3579 | * ipr_handle_other_interrupt - Handle "other" interrupts |
| 3580 | * @ioa_cfg: ioa config struct |
| 3581 | * @int_reg: interrupt register |
| 3582 | * |
| 3583 | * Return value: |
| 3584 | * IRQ_NONE / IRQ_HANDLED |
| 3585 | **/ |
| 3586 | static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, |
| 3587 | volatile u32 int_reg) |
| 3588 | { |
| 3589 | irqreturn_t rc = IRQ_HANDLED; |
| 3590 | |
| 3591 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { |
| 3592 | /* Mask the interrupt */ |
| 3593 | writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg); |
| 3594 | |
| 3595 | /* Clear the interrupt */ |
| 3596 | writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg); |
| 3597 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); |
| 3598 | |
| 3599 | list_del(&ioa_cfg->reset_cmd->queue); |
| 3600 | del_timer(&ioa_cfg->reset_cmd->timer); |
| 3601 | ipr_reset_ioa_job(ioa_cfg->reset_cmd); |
| 3602 | } else { |
| 3603 | if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) |
| 3604 | ioa_cfg->ioa_unit_checked = 1; |
| 3605 | else |
| 3606 | dev_err(&ioa_cfg->pdev->dev, |
| 3607 | "Permanent IOA failure. 0x%08X\n", int_reg); |
| 3608 | |
| 3609 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) |
| 3610 | ioa_cfg->sdt_state = GET_DUMP; |
| 3611 | |
| 3612 | ipr_mask_and_clear_interrupts(ioa_cfg, ~0); |
| 3613 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
| 3614 | } |
| 3615 | |
| 3616 | return rc; |
| 3617 | } |
| 3618 | |
| 3619 | /** |
| 3620 | * ipr_isr - Interrupt service routine |
| 3621 | * @irq: irq number |
| 3622 | * @devp: pointer to ioa config struct |
| 3623 | * @regs: pt_regs struct |
| 3624 | * |
| 3625 | * Return value: |
| 3626 | * IRQ_NONE / IRQ_HANDLED |
| 3627 | **/ |
| 3628 | static irqreturn_t ipr_isr(int irq, void *devp, struct pt_regs *regs) |
| 3629 | { |
| 3630 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; |
| 3631 | unsigned long lock_flags = 0; |
| 3632 | volatile u32 int_reg, int_mask_reg; |
| 3633 | u32 ioasc; |
| 3634 | u16 cmd_index; |
| 3635 | struct ipr_cmnd *ipr_cmd; |
| 3636 | irqreturn_t rc = IRQ_NONE; |
| 3637 | |
| 3638 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 3639 | |
| 3640 | /* If interrupts are disabled, ignore the interrupt */ |
| 3641 | if (!ioa_cfg->allow_interrupts) { |
| 3642 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3643 | return IRQ_NONE; |
| 3644 | } |
| 3645 | |
| 3646 | int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); |
| 3647 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; |
| 3648 | |
| 3649 | /* If an interrupt on the adapter did not occur, ignore it */ |
| 3650 | if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) { |
| 3651 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3652 | return IRQ_NONE; |
| 3653 | } |
| 3654 | |
| 3655 | while (1) { |
| 3656 | ipr_cmd = NULL; |
| 3657 | |
| 3658 | while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == |
| 3659 | ioa_cfg->toggle_bit) { |
| 3660 | |
| 3661 | cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) & |
| 3662 | IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; |
| 3663 | |
| 3664 | if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) { |
| 3665 | ioa_cfg->errors_logged++; |
| 3666 | dev_err(&ioa_cfg->pdev->dev, "Invalid response handle from IOA\n"); |
| 3667 | |
| 3668 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) |
| 3669 | ioa_cfg->sdt_state = GET_DUMP; |
| 3670 | |
| 3671 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
| 3672 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3673 | return IRQ_HANDLED; |
| 3674 | } |
| 3675 | |
| 3676 | ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; |
| 3677 | |
| 3678 | ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); |
| 3679 | |
| 3680 | ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc); |
| 3681 | |
| 3682 | list_del(&ipr_cmd->queue); |
| 3683 | del_timer(&ipr_cmd->timer); |
| 3684 | ipr_cmd->done(ipr_cmd); |
| 3685 | |
| 3686 | rc = IRQ_HANDLED; |
| 3687 | |
| 3688 | if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) { |
| 3689 | ioa_cfg->hrrq_curr++; |
| 3690 | } else { |
| 3691 | ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; |
| 3692 | ioa_cfg->toggle_bit ^= 1u; |
| 3693 | } |
| 3694 | } |
| 3695 | |
| 3696 | if (ipr_cmd != NULL) { |
| 3697 | /* Clear the PCI interrupt */ |
| 3698 | writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg); |
| 3699 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; |
| 3700 | } else |
| 3701 | break; |
| 3702 | } |
| 3703 | |
| 3704 | if (unlikely(rc == IRQ_NONE)) |
| 3705 | rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); |
| 3706 | |
| 3707 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3708 | return rc; |
| 3709 | } |
| 3710 | |
| 3711 | /** |
| 3712 | * ipr_build_ioadl - Build a scatter/gather list and map the buffer |
| 3713 | * @ioa_cfg: ioa config struct |
| 3714 | * @ipr_cmd: ipr command struct |
| 3715 | * |
| 3716 | * Return value: |
| 3717 | * 0 on success / -1 on failure |
| 3718 | **/ |
| 3719 | static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, |
| 3720 | struct ipr_cmnd *ipr_cmd) |
| 3721 | { |
| 3722 | int i; |
| 3723 | struct scatterlist *sglist; |
| 3724 | u32 length; |
| 3725 | u32 ioadl_flags = 0; |
| 3726 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
| 3727 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
| 3728 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; |
| 3729 | |
| 3730 | length = scsi_cmd->request_bufflen; |
| 3731 | |
| 3732 | if (length == 0) |
| 3733 | return 0; |
| 3734 | |
| 3735 | if (scsi_cmd->use_sg) { |
| 3736 | ipr_cmd->dma_use_sg = pci_map_sg(ioa_cfg->pdev, |
| 3737 | scsi_cmd->request_buffer, |
| 3738 | scsi_cmd->use_sg, |
| 3739 | scsi_cmd->sc_data_direction); |
| 3740 | |
| 3741 | if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { |
| 3742 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; |
| 3743 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
| 3744 | ioarcb->write_data_transfer_length = cpu_to_be32(length); |
| 3745 | ioarcb->write_ioadl_len = |
| 3746 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); |
| 3747 | } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { |
| 3748 | ioadl_flags = IPR_IOADL_FLAGS_READ; |
| 3749 | ioarcb->read_data_transfer_length = cpu_to_be32(length); |
| 3750 | ioarcb->read_ioadl_len = |
| 3751 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); |
| 3752 | } |
| 3753 | |
| 3754 | sglist = scsi_cmd->request_buffer; |
| 3755 | |
| 3756 | for (i = 0; i < ipr_cmd->dma_use_sg; i++) { |
| 3757 | ioadl[i].flags_and_data_len = |
| 3758 | cpu_to_be32(ioadl_flags | sg_dma_len(&sglist[i])); |
| 3759 | ioadl[i].address = |
| 3760 | cpu_to_be32(sg_dma_address(&sglist[i])); |
| 3761 | } |
| 3762 | |
| 3763 | if (likely(ipr_cmd->dma_use_sg)) { |
| 3764 | ioadl[i-1].flags_and_data_len |= |
| 3765 | cpu_to_be32(IPR_IOADL_FLAGS_LAST); |
| 3766 | return 0; |
| 3767 | } else |
| 3768 | dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); |
| 3769 | } else { |
| 3770 | if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { |
| 3771 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; |
| 3772 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
| 3773 | ioarcb->write_data_transfer_length = cpu_to_be32(length); |
| 3774 | ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); |
| 3775 | } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { |
| 3776 | ioadl_flags = IPR_IOADL_FLAGS_READ; |
| 3777 | ioarcb->read_data_transfer_length = cpu_to_be32(length); |
| 3778 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); |
| 3779 | } |
| 3780 | |
| 3781 | ipr_cmd->dma_handle = pci_map_single(ioa_cfg->pdev, |
| 3782 | scsi_cmd->request_buffer, length, |
| 3783 | scsi_cmd->sc_data_direction); |
| 3784 | |
| 3785 | if (likely(!pci_dma_mapping_error(ipr_cmd->dma_handle))) { |
| 3786 | ipr_cmd->dma_use_sg = 1; |
| 3787 | ioadl[0].flags_and_data_len = |
| 3788 | cpu_to_be32(ioadl_flags | length | IPR_IOADL_FLAGS_LAST); |
| 3789 | ioadl[0].address = cpu_to_be32(ipr_cmd->dma_handle); |
| 3790 | return 0; |
| 3791 | } else |
| 3792 | dev_err(&ioa_cfg->pdev->dev, "pci_map_single failed!\n"); |
| 3793 | } |
| 3794 | |
| 3795 | return -1; |
| 3796 | } |
| 3797 | |
| 3798 | /** |
| 3799 | * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes |
| 3800 | * @scsi_cmd: scsi command struct |
| 3801 | * |
| 3802 | * Return value: |
| 3803 | * task attributes |
| 3804 | **/ |
| 3805 | static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd) |
| 3806 | { |
| 3807 | u8 tag[2]; |
| 3808 | u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK; |
| 3809 | |
| 3810 | if (scsi_populate_tag_msg(scsi_cmd, tag)) { |
| 3811 | switch (tag[0]) { |
| 3812 | case MSG_SIMPLE_TAG: |
| 3813 | rc = IPR_FLAGS_LO_SIMPLE_TASK; |
| 3814 | break; |
| 3815 | case MSG_HEAD_TAG: |
| 3816 | rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK; |
| 3817 | break; |
| 3818 | case MSG_ORDERED_TAG: |
| 3819 | rc = IPR_FLAGS_LO_ORDERED_TASK; |
| 3820 | break; |
| 3821 | }; |
| 3822 | } |
| 3823 | |
| 3824 | return rc; |
| 3825 | } |
| 3826 | |
| 3827 | /** |
| 3828 | * ipr_erp_done - Process completion of ERP for a device |
| 3829 | * @ipr_cmd: ipr command struct |
| 3830 | * |
| 3831 | * This function copies the sense buffer into the scsi_cmd |
| 3832 | * struct and pushes the scsi_done function. |
| 3833 | * |
| 3834 | * Return value: |
| 3835 | * nothing |
| 3836 | **/ |
| 3837 | static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) |
| 3838 | { |
| 3839 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
| 3840 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; |
| 3841 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 3842 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); |
| 3843 | |
| 3844 | if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { |
| 3845 | scsi_cmd->result |= (DID_ERROR << 16); |
Brian King | fb3ed3c | 2006-03-29 09:37:37 -0600 | [diff] [blame] | 3846 | scmd_printk(KERN_ERR, scsi_cmd, |
| 3847 | "Request Sense failed with IOASC: 0x%08X\n", ioasc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3848 | } else { |
| 3849 | memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, |
| 3850 | SCSI_SENSE_BUFFERSIZE); |
| 3851 | } |
| 3852 | |
| 3853 | if (res) { |
brking@us.ibm.com | ee0a90f | 2005-11-01 17:02:22 -0600 | [diff] [blame] | 3854 | if (!ipr_is_naca_model(res)) |
| 3855 | res->needs_sync_complete = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3856 | res->in_erp = 0; |
| 3857 | } |
| 3858 | ipr_unmap_sglist(ioa_cfg, ipr_cmd); |
| 3859 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); |
| 3860 | scsi_cmd->scsi_done(scsi_cmd); |
| 3861 | } |
| 3862 | |
| 3863 | /** |
| 3864 | * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP |
| 3865 | * @ipr_cmd: ipr command struct |
| 3866 | * |
| 3867 | * Return value: |
| 3868 | * none |
| 3869 | **/ |
| 3870 | static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) |
| 3871 | { |
| 3872 | struct ipr_ioarcb *ioarcb; |
| 3873 | struct ipr_ioasa *ioasa; |
| 3874 | |
| 3875 | ioarcb = &ipr_cmd->ioarcb; |
| 3876 | ioasa = &ipr_cmd->ioasa; |
| 3877 | |
| 3878 | memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); |
| 3879 | ioarcb->write_data_transfer_length = 0; |
| 3880 | ioarcb->read_data_transfer_length = 0; |
| 3881 | ioarcb->write_ioadl_len = 0; |
| 3882 | ioarcb->read_ioadl_len = 0; |
| 3883 | ioasa->ioasc = 0; |
| 3884 | ioasa->residual_data_len = 0; |
| 3885 | } |
| 3886 | |
| 3887 | /** |
| 3888 | * ipr_erp_request_sense - Send request sense to a device |
| 3889 | * @ipr_cmd: ipr command struct |
| 3890 | * |
| 3891 | * This function sends a request sense to a device as a result |
| 3892 | * of a check condition. |
| 3893 | * |
| 3894 | * Return value: |
| 3895 | * nothing |
| 3896 | **/ |
| 3897 | static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) |
| 3898 | { |
| 3899 | struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; |
| 3900 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); |
| 3901 | |
| 3902 | if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { |
| 3903 | ipr_erp_done(ipr_cmd); |
| 3904 | return; |
| 3905 | } |
| 3906 | |
| 3907 | ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); |
| 3908 | |
| 3909 | cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; |
| 3910 | cmd_pkt->cdb[0] = REQUEST_SENSE; |
| 3911 | cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; |
| 3912 | cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; |
| 3913 | cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; |
| 3914 | cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); |
| 3915 | |
| 3916 | ipr_cmd->ioadl[0].flags_and_data_len = |
| 3917 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | SCSI_SENSE_BUFFERSIZE); |
| 3918 | ipr_cmd->ioadl[0].address = |
| 3919 | cpu_to_be32(ipr_cmd->sense_buffer_dma); |
| 3920 | |
| 3921 | ipr_cmd->ioarcb.read_ioadl_len = |
| 3922 | cpu_to_be32(sizeof(struct ipr_ioadl_desc)); |
| 3923 | ipr_cmd->ioarcb.read_data_transfer_length = |
| 3924 | cpu_to_be32(SCSI_SENSE_BUFFERSIZE); |
| 3925 | |
| 3926 | ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout, |
| 3927 | IPR_REQUEST_SENSE_TIMEOUT * 2); |
| 3928 | } |
| 3929 | |
| 3930 | /** |
| 3931 | * ipr_erp_cancel_all - Send cancel all to a device |
| 3932 | * @ipr_cmd: ipr command struct |
| 3933 | * |
| 3934 | * This function sends a cancel all to a device to clear the |
| 3935 | * queue. If we are running TCQ on the device, QERR is set to 1, |
| 3936 | * which means all outstanding ops have been dropped on the floor. |
| 3937 | * Cancel all will return them to us. |
| 3938 | * |
| 3939 | * Return value: |
| 3940 | * nothing |
| 3941 | **/ |
| 3942 | static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) |
| 3943 | { |
| 3944 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
| 3945 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; |
| 3946 | struct ipr_cmd_pkt *cmd_pkt; |
| 3947 | |
| 3948 | res->in_erp = 1; |
| 3949 | |
| 3950 | ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); |
| 3951 | |
| 3952 | if (!scsi_get_tag_type(scsi_cmd->device)) { |
| 3953 | ipr_erp_request_sense(ipr_cmd); |
| 3954 | return; |
| 3955 | } |
| 3956 | |
| 3957 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; |
| 3958 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; |
| 3959 | cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; |
| 3960 | |
| 3961 | ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout, |
| 3962 | IPR_CANCEL_ALL_TIMEOUT); |
| 3963 | } |
| 3964 | |
| 3965 | /** |
| 3966 | * ipr_dump_ioasa - Dump contents of IOASA |
| 3967 | * @ioa_cfg: ioa config struct |
| 3968 | * @ipr_cmd: ipr command struct |
Brian King | fe964d0 | 2006-03-29 09:37:29 -0600 | [diff] [blame] | 3969 | * @res: resource entry struct |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3970 | * |
| 3971 | * This function is invoked by the interrupt handler when ops |
| 3972 | * fail. It will log the IOASA if appropriate. Only called |
| 3973 | * for GPDD ops. |
| 3974 | * |
| 3975 | * Return value: |
| 3976 | * none |
| 3977 | **/ |
| 3978 | static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, |
Brian King | fe964d0 | 2006-03-29 09:37:29 -0600 | [diff] [blame] | 3979 | struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3980 | { |
| 3981 | int i; |
| 3982 | u16 data_len; |
| 3983 | u32 ioasc; |
| 3984 | struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; |
| 3985 | __be32 *ioasa_data = (__be32 *)ioasa; |
| 3986 | int error_index; |
| 3987 | |
| 3988 | ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK; |
| 3989 | |
| 3990 | if (0 == ioasc) |
| 3991 | return; |
| 3992 | |
| 3993 | if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) |
| 3994 | return; |
| 3995 | |
| 3996 | error_index = ipr_get_error(ioasc); |
| 3997 | |
| 3998 | if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { |
| 3999 | /* Don't log an error if the IOA already logged one */ |
| 4000 | if (ioasa->ilid != 0) |
| 4001 | return; |
| 4002 | |
| 4003 | if (ipr_error_table[error_index].log_ioasa == 0) |
| 4004 | return; |
| 4005 | } |
| 4006 | |
Brian King | fe964d0 | 2006-03-29 09:37:29 -0600 | [diff] [blame] | 4007 | ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4008 | |
| 4009 | if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len)) |
| 4010 | data_len = sizeof(struct ipr_ioasa); |
| 4011 | else |
| 4012 | data_len = be16_to_cpu(ioasa->ret_stat_len); |
| 4013 | |
| 4014 | ipr_err("IOASA Dump:\n"); |
| 4015 | |
| 4016 | for (i = 0; i < data_len / 4; i += 4) { |
| 4017 | ipr_err("%08X: %08X %08X %08X %08X\n", i*4, |
| 4018 | be32_to_cpu(ioasa_data[i]), |
| 4019 | be32_to_cpu(ioasa_data[i+1]), |
| 4020 | be32_to_cpu(ioasa_data[i+2]), |
| 4021 | be32_to_cpu(ioasa_data[i+3])); |
| 4022 | } |
| 4023 | } |
| 4024 | |
| 4025 | /** |
| 4026 | * ipr_gen_sense - Generate SCSI sense data from an IOASA |
| 4027 | * @ioasa: IOASA |
| 4028 | * @sense_buf: sense data buffer |
| 4029 | * |
| 4030 | * Return value: |
| 4031 | * none |
| 4032 | **/ |
| 4033 | static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) |
| 4034 | { |
| 4035 | u32 failing_lba; |
| 4036 | u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; |
| 4037 | struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; |
| 4038 | struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; |
| 4039 | u32 ioasc = be32_to_cpu(ioasa->ioasc); |
| 4040 | |
| 4041 | memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); |
| 4042 | |
| 4043 | if (ioasc >= IPR_FIRST_DRIVER_IOASC) |
| 4044 | return; |
| 4045 | |
| 4046 | ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; |
| 4047 | |
| 4048 | if (ipr_is_vset_device(res) && |
| 4049 | ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && |
| 4050 | ioasa->u.vset.failing_lba_hi != 0) { |
| 4051 | sense_buf[0] = 0x72; |
| 4052 | sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); |
| 4053 | sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); |
| 4054 | sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); |
| 4055 | |
| 4056 | sense_buf[7] = 12; |
| 4057 | sense_buf[8] = 0; |
| 4058 | sense_buf[9] = 0x0A; |
| 4059 | sense_buf[10] = 0x80; |
| 4060 | |
| 4061 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); |
| 4062 | |
| 4063 | sense_buf[12] = (failing_lba & 0xff000000) >> 24; |
| 4064 | sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; |
| 4065 | sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; |
| 4066 | sense_buf[15] = failing_lba & 0x000000ff; |
| 4067 | |
| 4068 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); |
| 4069 | |
| 4070 | sense_buf[16] = (failing_lba & 0xff000000) >> 24; |
| 4071 | sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; |
| 4072 | sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; |
| 4073 | sense_buf[19] = failing_lba & 0x000000ff; |
| 4074 | } else { |
| 4075 | sense_buf[0] = 0x70; |
| 4076 | sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); |
| 4077 | sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); |
| 4078 | sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); |
| 4079 | |
| 4080 | /* Illegal request */ |
| 4081 | if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && |
| 4082 | (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) { |
| 4083 | sense_buf[7] = 10; /* additional length */ |
| 4084 | |
| 4085 | /* IOARCB was in error */ |
| 4086 | if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) |
| 4087 | sense_buf[15] = 0xC0; |
| 4088 | else /* Parameter data was invalid */ |
| 4089 | sense_buf[15] = 0x80; |
| 4090 | |
| 4091 | sense_buf[16] = |
| 4092 | ((IPR_FIELD_POINTER_MASK & |
| 4093 | be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff; |
| 4094 | sense_buf[17] = |
| 4095 | (IPR_FIELD_POINTER_MASK & |
| 4096 | be32_to_cpu(ioasa->ioasc_specific)) & 0xff; |
| 4097 | } else { |
| 4098 | if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { |
| 4099 | if (ipr_is_vset_device(res)) |
| 4100 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); |
| 4101 | else |
| 4102 | failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); |
| 4103 | |
| 4104 | sense_buf[0] |= 0x80; /* Or in the Valid bit */ |
| 4105 | sense_buf[3] = (failing_lba & 0xff000000) >> 24; |
| 4106 | sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; |
| 4107 | sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; |
| 4108 | sense_buf[6] = failing_lba & 0x000000ff; |
| 4109 | } |
| 4110 | |
| 4111 | sense_buf[7] = 6; /* additional length */ |
| 4112 | } |
| 4113 | } |
| 4114 | } |
| 4115 | |
| 4116 | /** |
brking@us.ibm.com | ee0a90f | 2005-11-01 17:02:22 -0600 | [diff] [blame] | 4117 | * ipr_get_autosense - Copy autosense data to sense buffer |
| 4118 | * @ipr_cmd: ipr command struct |
| 4119 | * |
| 4120 | * This function copies the autosense buffer to the buffer |
| 4121 | * in the scsi_cmd, if there is autosense available. |
| 4122 | * |
| 4123 | * Return value: |
| 4124 | * 1 if autosense was available / 0 if not |
| 4125 | **/ |
| 4126 | static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd) |
| 4127 | { |
| 4128 | struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; |
| 4129 | |
| 4130 | if ((be32_to_cpu(ioasa->ioasc_specific) & |
| 4131 | (IPR_ADDITIONAL_STATUS_FMT | IPR_AUTOSENSE_VALID)) == 0) |
| 4132 | return 0; |
| 4133 | |
| 4134 | memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data, |
| 4135 | min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len), |
| 4136 | SCSI_SENSE_BUFFERSIZE)); |
| 4137 | return 1; |
| 4138 | } |
| 4139 | |
| 4140 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4141 | * ipr_erp_start - Process an error response for a SCSI op |
| 4142 | * @ioa_cfg: ioa config struct |
| 4143 | * @ipr_cmd: ipr command struct |
| 4144 | * |
| 4145 | * This function determines whether or not to initiate ERP |
| 4146 | * on the affected device. |
| 4147 | * |
| 4148 | * Return value: |
| 4149 | * nothing |
| 4150 | **/ |
| 4151 | static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, |
| 4152 | struct ipr_cmnd *ipr_cmd) |
| 4153 | { |
| 4154 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
| 4155 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; |
| 4156 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); |
| 4157 | |
| 4158 | if (!res) { |
| 4159 | ipr_scsi_eh_done(ipr_cmd); |
| 4160 | return; |
| 4161 | } |
| 4162 | |
| 4163 | if (ipr_is_gscsi(res)) |
Brian King | fe964d0 | 2006-03-29 09:37:29 -0600 | [diff] [blame] | 4164 | ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4165 | else |
| 4166 | ipr_gen_sense(ipr_cmd); |
| 4167 | |
| 4168 | switch (ioasc & IPR_IOASC_IOASC_MASK) { |
| 4169 | case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: |
brking@us.ibm.com | ee0a90f | 2005-11-01 17:02:22 -0600 | [diff] [blame] | 4170 | if (ipr_is_naca_model(res)) |
| 4171 | scsi_cmd->result |= (DID_ABORT << 16); |
| 4172 | else |
| 4173 | scsi_cmd->result |= (DID_IMM_RETRY << 16); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4174 | break; |
| 4175 | case IPR_IOASC_IR_RESOURCE_HANDLE: |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 4176 | case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4177 | scsi_cmd->result |= (DID_NO_CONNECT << 16); |
| 4178 | break; |
| 4179 | case IPR_IOASC_HW_SEL_TIMEOUT: |
| 4180 | scsi_cmd->result |= (DID_NO_CONNECT << 16); |
brking@us.ibm.com | ee0a90f | 2005-11-01 17:02:22 -0600 | [diff] [blame] | 4181 | if (!ipr_is_naca_model(res)) |
| 4182 | res->needs_sync_complete = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4183 | break; |
| 4184 | case IPR_IOASC_SYNC_REQUIRED: |
| 4185 | if (!res->in_erp) |
| 4186 | res->needs_sync_complete = 1; |
| 4187 | scsi_cmd->result |= (DID_IMM_RETRY << 16); |
| 4188 | break; |
| 4189 | case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 4190 | case IPR_IOASA_IR_DUAL_IOA_DISABLED: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4191 | scsi_cmd->result |= (DID_PASSTHROUGH << 16); |
| 4192 | break; |
| 4193 | case IPR_IOASC_BUS_WAS_RESET: |
| 4194 | case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: |
| 4195 | /* |
| 4196 | * Report the bus reset and ask for a retry. The device |
| 4197 | * will give CC/UA the next command. |
| 4198 | */ |
| 4199 | if (!res->resetting_device) |
| 4200 | scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); |
| 4201 | scsi_cmd->result |= (DID_ERROR << 16); |
brking@us.ibm.com | ee0a90f | 2005-11-01 17:02:22 -0600 | [diff] [blame] | 4202 | if (!ipr_is_naca_model(res)) |
| 4203 | res->needs_sync_complete = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4204 | break; |
| 4205 | case IPR_IOASC_HW_DEV_BUS_STATUS: |
| 4206 | scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); |
| 4207 | if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { |
brking@us.ibm.com | ee0a90f | 2005-11-01 17:02:22 -0600 | [diff] [blame] | 4208 | if (!ipr_get_autosense(ipr_cmd)) { |
| 4209 | if (!ipr_is_naca_model(res)) { |
| 4210 | ipr_erp_cancel_all(ipr_cmd); |
| 4211 | return; |
| 4212 | } |
| 4213 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4214 | } |
brking@us.ibm.com | ee0a90f | 2005-11-01 17:02:22 -0600 | [diff] [blame] | 4215 | if (!ipr_is_naca_model(res)) |
| 4216 | res->needs_sync_complete = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4217 | break; |
| 4218 | case IPR_IOASC_NR_INIT_CMD_REQUIRED: |
| 4219 | break; |
| 4220 | default: |
| 4221 | scsi_cmd->result |= (DID_ERROR << 16); |
brking@us.ibm.com | ee0a90f | 2005-11-01 17:02:22 -0600 | [diff] [blame] | 4222 | if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4223 | res->needs_sync_complete = 1; |
| 4224 | break; |
| 4225 | } |
| 4226 | |
| 4227 | ipr_unmap_sglist(ioa_cfg, ipr_cmd); |
| 4228 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); |
| 4229 | scsi_cmd->scsi_done(scsi_cmd); |
| 4230 | } |
| 4231 | |
| 4232 | /** |
| 4233 | * ipr_scsi_done - mid-layer done function |
| 4234 | * @ipr_cmd: ipr command struct |
| 4235 | * |
| 4236 | * This function is invoked by the interrupt handler for |
| 4237 | * ops generated by the SCSI mid-layer |
| 4238 | * |
| 4239 | * Return value: |
| 4240 | * none |
| 4241 | **/ |
| 4242 | static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) |
| 4243 | { |
| 4244 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 4245 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
| 4246 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); |
| 4247 | |
| 4248 | scsi_cmd->resid = be32_to_cpu(ipr_cmd->ioasa.residual_data_len); |
| 4249 | |
| 4250 | if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { |
| 4251 | ipr_unmap_sglist(ioa_cfg, ipr_cmd); |
| 4252 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); |
| 4253 | scsi_cmd->scsi_done(scsi_cmd); |
| 4254 | } else |
| 4255 | ipr_erp_start(ioa_cfg, ipr_cmd); |
| 4256 | } |
| 4257 | |
| 4258 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4259 | * ipr_queuecommand - Queue a mid-layer request |
| 4260 | * @scsi_cmd: scsi command struct |
| 4261 | * @done: done function |
| 4262 | * |
| 4263 | * This function queues a request generated by the mid-layer. |
| 4264 | * |
| 4265 | * Return value: |
| 4266 | * 0 on success |
| 4267 | * SCSI_MLQUEUE_DEVICE_BUSY if device is busy |
| 4268 | * SCSI_MLQUEUE_HOST_BUSY if host is busy |
| 4269 | **/ |
| 4270 | static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd, |
| 4271 | void (*done) (struct scsi_cmnd *)) |
| 4272 | { |
| 4273 | struct ipr_ioa_cfg *ioa_cfg; |
| 4274 | struct ipr_resource_entry *res; |
| 4275 | struct ipr_ioarcb *ioarcb; |
| 4276 | struct ipr_cmnd *ipr_cmd; |
| 4277 | int rc = 0; |
| 4278 | |
| 4279 | scsi_cmd->scsi_done = done; |
| 4280 | ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; |
| 4281 | res = scsi_cmd->device->hostdata; |
| 4282 | scsi_cmd->result = (DID_OK << 16); |
| 4283 | |
| 4284 | /* |
| 4285 | * We are currently blocking all devices due to a host reset |
| 4286 | * We have told the host to stop giving us new requests, but |
| 4287 | * ERP ops don't count. FIXME |
| 4288 | */ |
| 4289 | if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead)) |
| 4290 | return SCSI_MLQUEUE_HOST_BUSY; |
| 4291 | |
| 4292 | /* |
| 4293 | * FIXME - Create scsi_set_host_offline interface |
| 4294 | * and the ioa_is_dead check can be removed |
| 4295 | */ |
| 4296 | if (unlikely(ioa_cfg->ioa_is_dead || !res)) { |
| 4297 | memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); |
| 4298 | scsi_cmd->result = (DID_NO_CONNECT << 16); |
| 4299 | scsi_cmd->scsi_done(scsi_cmd); |
| 4300 | return 0; |
| 4301 | } |
| 4302 | |
| 4303 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
| 4304 | ioarcb = &ipr_cmd->ioarcb; |
| 4305 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); |
| 4306 | |
| 4307 | memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); |
| 4308 | ipr_cmd->scsi_cmd = scsi_cmd; |
| 4309 | ioarcb->res_handle = res->cfgte.res_handle; |
| 4310 | ipr_cmd->done = ipr_scsi_done; |
| 4311 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr)); |
| 4312 | |
| 4313 | if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { |
| 4314 | if (scsi_cmd->underflow == 0) |
| 4315 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; |
| 4316 | |
| 4317 | if (res->needs_sync_complete) { |
| 4318 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; |
| 4319 | res->needs_sync_complete = 0; |
| 4320 | } |
| 4321 | |
| 4322 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; |
| 4323 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; |
| 4324 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; |
| 4325 | ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd); |
| 4326 | } |
| 4327 | |
| 4328 | if (scsi_cmd->cmnd[0] >= 0xC0 && |
| 4329 | (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) |
| 4330 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
| 4331 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4332 | if (likely(rc == 0)) |
| 4333 | rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); |
| 4334 | |
| 4335 | if (likely(rc == 0)) { |
| 4336 | mb(); |
| 4337 | writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), |
| 4338 | ioa_cfg->regs.ioarrin_reg); |
| 4339 | } else { |
| 4340 | list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q); |
| 4341 | return SCSI_MLQUEUE_HOST_BUSY; |
| 4342 | } |
| 4343 | |
| 4344 | return 0; |
| 4345 | } |
| 4346 | |
| 4347 | /** |
| 4348 | * ipr_info - Get information about the card/driver |
| 4349 | * @scsi_host: scsi host struct |
| 4350 | * |
| 4351 | * Return value: |
| 4352 | * pointer to buffer with description string |
| 4353 | **/ |
| 4354 | static const char * ipr_ioa_info(struct Scsi_Host *host) |
| 4355 | { |
| 4356 | static char buffer[512]; |
| 4357 | struct ipr_ioa_cfg *ioa_cfg; |
| 4358 | unsigned long lock_flags = 0; |
| 4359 | |
| 4360 | ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; |
| 4361 | |
| 4362 | spin_lock_irqsave(host->host_lock, lock_flags); |
| 4363 | sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type); |
| 4364 | spin_unlock_irqrestore(host->host_lock, lock_flags); |
| 4365 | |
| 4366 | return buffer; |
| 4367 | } |
| 4368 | |
| 4369 | static struct scsi_host_template driver_template = { |
| 4370 | .module = THIS_MODULE, |
| 4371 | .name = "IPR", |
| 4372 | .info = ipr_ioa_info, |
| 4373 | .queuecommand = ipr_queuecommand, |
| 4374 | .eh_abort_handler = ipr_eh_abort, |
| 4375 | .eh_device_reset_handler = ipr_eh_dev_reset, |
| 4376 | .eh_host_reset_handler = ipr_eh_host_reset, |
| 4377 | .slave_alloc = ipr_slave_alloc, |
| 4378 | .slave_configure = ipr_slave_configure, |
| 4379 | .slave_destroy = ipr_slave_destroy, |
| 4380 | .change_queue_depth = ipr_change_queue_depth, |
| 4381 | .change_queue_type = ipr_change_queue_type, |
| 4382 | .bios_param = ipr_biosparam, |
| 4383 | .can_queue = IPR_MAX_COMMANDS, |
| 4384 | .this_id = -1, |
| 4385 | .sg_tablesize = IPR_MAX_SGLIST, |
| 4386 | .max_sectors = IPR_IOA_MAX_SECTORS, |
| 4387 | .cmd_per_lun = IPR_MAX_CMD_PER_LUN, |
| 4388 | .use_clustering = ENABLE_CLUSTERING, |
| 4389 | .shost_attrs = ipr_ioa_attrs, |
| 4390 | .sdev_attrs = ipr_dev_attrs, |
| 4391 | .proc_name = IPR_NAME |
| 4392 | }; |
| 4393 | |
| 4394 | #ifdef CONFIG_PPC_PSERIES |
| 4395 | static const u16 ipr_blocked_processors[] = { |
| 4396 | PV_NORTHSTAR, |
| 4397 | PV_PULSAR, |
| 4398 | PV_POWER4, |
| 4399 | PV_ICESTAR, |
| 4400 | PV_SSTAR, |
| 4401 | PV_POWER4p, |
| 4402 | PV_630, |
| 4403 | PV_630p |
| 4404 | }; |
| 4405 | |
| 4406 | /** |
| 4407 | * ipr_invalid_adapter - Determine if this adapter is supported on this hardware |
| 4408 | * @ioa_cfg: ioa cfg struct |
| 4409 | * |
| 4410 | * Adapters that use Gemstone revision < 3.1 do not work reliably on |
| 4411 | * certain pSeries hardware. This function determines if the given |
| 4412 | * adapter is in one of these confgurations or not. |
| 4413 | * |
| 4414 | * Return value: |
| 4415 | * 1 if adapter is not supported / 0 if adapter is supported |
| 4416 | **/ |
| 4417 | static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) |
| 4418 | { |
| 4419 | u8 rev_id; |
| 4420 | int i; |
| 4421 | |
| 4422 | if (ioa_cfg->type == 0x5702) { |
| 4423 | if (pci_read_config_byte(ioa_cfg->pdev, PCI_REVISION_ID, |
| 4424 | &rev_id) == PCIBIOS_SUCCESSFUL) { |
| 4425 | if (rev_id < 4) { |
| 4426 | for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){ |
| 4427 | if (__is_processor(ipr_blocked_processors[i])) |
| 4428 | return 1; |
| 4429 | } |
| 4430 | } |
| 4431 | } |
| 4432 | } |
| 4433 | return 0; |
| 4434 | } |
| 4435 | #else |
| 4436 | #define ipr_invalid_adapter(ioa_cfg) 0 |
| 4437 | #endif |
| 4438 | |
| 4439 | /** |
| 4440 | * ipr_ioa_bringdown_done - IOA bring down completion. |
| 4441 | * @ipr_cmd: ipr command struct |
| 4442 | * |
| 4443 | * This function processes the completion of an adapter bring down. |
| 4444 | * It wakes any reset sleepers. |
| 4445 | * |
| 4446 | * Return value: |
| 4447 | * IPR_RC_JOB_RETURN |
| 4448 | **/ |
| 4449 | static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) |
| 4450 | { |
| 4451 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 4452 | |
| 4453 | ENTER; |
| 4454 | ioa_cfg->in_reset_reload = 0; |
| 4455 | ioa_cfg->reset_retries = 0; |
| 4456 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); |
| 4457 | wake_up_all(&ioa_cfg->reset_wait_q); |
| 4458 | |
| 4459 | spin_unlock_irq(ioa_cfg->host->host_lock); |
| 4460 | scsi_unblock_requests(ioa_cfg->host); |
| 4461 | spin_lock_irq(ioa_cfg->host->host_lock); |
| 4462 | LEAVE; |
| 4463 | |
| 4464 | return IPR_RC_JOB_RETURN; |
| 4465 | } |
| 4466 | |
| 4467 | /** |
| 4468 | * ipr_ioa_reset_done - IOA reset completion. |
| 4469 | * @ipr_cmd: ipr command struct |
| 4470 | * |
| 4471 | * This function processes the completion of an adapter reset. |
| 4472 | * It schedules any necessary mid-layer add/removes and |
| 4473 | * wakes any reset sleepers. |
| 4474 | * |
| 4475 | * Return value: |
| 4476 | * IPR_RC_JOB_RETURN |
| 4477 | **/ |
| 4478 | static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) |
| 4479 | { |
| 4480 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 4481 | struct ipr_resource_entry *res; |
| 4482 | struct ipr_hostrcb *hostrcb, *temp; |
| 4483 | int i = 0; |
| 4484 | |
| 4485 | ENTER; |
| 4486 | ioa_cfg->in_reset_reload = 0; |
| 4487 | ioa_cfg->allow_cmds = 1; |
| 4488 | ioa_cfg->reset_cmd = NULL; |
brking@us.ibm.com | 3d1d0da | 2005-11-01 17:01:54 -0600 | [diff] [blame] | 4489 | ioa_cfg->doorbell |= IPR_RUNTIME_RESET; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4490 | |
| 4491 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
| 4492 | if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) { |
| 4493 | ipr_trace; |
| 4494 | break; |
| 4495 | } |
| 4496 | } |
| 4497 | schedule_work(&ioa_cfg->work_q); |
| 4498 | |
| 4499 | list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) { |
| 4500 | list_del(&hostrcb->queue); |
| 4501 | if (i++ < IPR_NUM_LOG_HCAMS) |
| 4502 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); |
| 4503 | else |
| 4504 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); |
| 4505 | } |
| 4506 | |
| 4507 | dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n"); |
| 4508 | |
| 4509 | ioa_cfg->reset_retries = 0; |
| 4510 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); |
| 4511 | wake_up_all(&ioa_cfg->reset_wait_q); |
| 4512 | |
| 4513 | spin_unlock_irq(ioa_cfg->host->host_lock); |
| 4514 | scsi_unblock_requests(ioa_cfg->host); |
| 4515 | spin_lock_irq(ioa_cfg->host->host_lock); |
| 4516 | |
| 4517 | if (!ioa_cfg->allow_cmds) |
| 4518 | scsi_block_requests(ioa_cfg->host); |
| 4519 | |
| 4520 | LEAVE; |
| 4521 | return IPR_RC_JOB_RETURN; |
| 4522 | } |
| 4523 | |
| 4524 | /** |
| 4525 | * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer |
| 4526 | * @supported_dev: supported device struct |
| 4527 | * @vpids: vendor product id struct |
| 4528 | * |
| 4529 | * Return value: |
| 4530 | * none |
| 4531 | **/ |
| 4532 | static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, |
| 4533 | struct ipr_std_inq_vpids *vpids) |
| 4534 | { |
| 4535 | memset(supported_dev, 0, sizeof(struct ipr_supported_device)); |
| 4536 | memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); |
| 4537 | supported_dev->num_records = 1; |
| 4538 | supported_dev->data_length = |
| 4539 | cpu_to_be16(sizeof(struct ipr_supported_device)); |
| 4540 | supported_dev->reserved = 0; |
| 4541 | } |
| 4542 | |
| 4543 | /** |
| 4544 | * ipr_set_supported_devs - Send Set Supported Devices for a device |
| 4545 | * @ipr_cmd: ipr command struct |
| 4546 | * |
| 4547 | * This function send a Set Supported Devices to the adapter |
| 4548 | * |
| 4549 | * Return value: |
| 4550 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 4551 | **/ |
| 4552 | static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) |
| 4553 | { |
| 4554 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 4555 | struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; |
| 4556 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; |
| 4557 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
| 4558 | struct ipr_resource_entry *res = ipr_cmd->u.res; |
| 4559 | |
| 4560 | ipr_cmd->job_step = ipr_ioa_reset_done; |
| 4561 | |
| 4562 | list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { |
Brian King | e4fbf44 | 2006-03-29 09:37:22 -0600 | [diff] [blame] | 4563 | if (!ipr_is_scsi_disk(res)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4564 | continue; |
| 4565 | |
| 4566 | ipr_cmd->u.res = res; |
| 4567 | ipr_set_sup_dev_dflt(supp_dev, &res->cfgte.std_inq_data.vpids); |
| 4568 | |
| 4569 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
| 4570 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
| 4571 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
| 4572 | |
| 4573 | ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; |
| 4574 | ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; |
| 4575 | ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; |
| 4576 | |
| 4577 | ioadl->flags_and_data_len = cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | |
| 4578 | sizeof(struct ipr_supported_device)); |
| 4579 | ioadl->address = cpu_to_be32(ioa_cfg->vpd_cbs_dma + |
| 4580 | offsetof(struct ipr_misc_cbs, supp_dev)); |
| 4581 | ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); |
| 4582 | ioarcb->write_data_transfer_length = |
| 4583 | cpu_to_be32(sizeof(struct ipr_supported_device)); |
| 4584 | |
| 4585 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, |
| 4586 | IPR_SET_SUP_DEVICE_TIMEOUT); |
| 4587 | |
| 4588 | ipr_cmd->job_step = ipr_set_supported_devs; |
| 4589 | return IPR_RC_JOB_RETURN; |
| 4590 | } |
| 4591 | |
| 4592 | return IPR_RC_JOB_CONTINUE; |
| 4593 | } |
| 4594 | |
| 4595 | /** |
brking@us.ibm.com | 6227504 | 2005-11-01 17:01:14 -0600 | [diff] [blame] | 4596 | * ipr_setup_write_cache - Disable write cache if needed |
| 4597 | * @ipr_cmd: ipr command struct |
| 4598 | * |
| 4599 | * This function sets up adapters write cache to desired setting |
| 4600 | * |
| 4601 | * Return value: |
| 4602 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 4603 | **/ |
| 4604 | static int ipr_setup_write_cache(struct ipr_cmnd *ipr_cmd) |
| 4605 | { |
| 4606 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 4607 | |
| 4608 | ipr_cmd->job_step = ipr_set_supported_devs; |
| 4609 | ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, |
| 4610 | struct ipr_resource_entry, queue); |
| 4611 | |
| 4612 | if (ioa_cfg->cache_state != CACHE_DISABLED) |
| 4613 | return IPR_RC_JOB_CONTINUE; |
| 4614 | |
| 4615 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
| 4616 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
| 4617 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; |
| 4618 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; |
| 4619 | |
| 4620 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); |
| 4621 | |
| 4622 | return IPR_RC_JOB_RETURN; |
| 4623 | } |
| 4624 | |
| 4625 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4626 | * ipr_get_mode_page - Locate specified mode page |
| 4627 | * @mode_pages: mode page buffer |
| 4628 | * @page_code: page code to find |
| 4629 | * @len: minimum required length for mode page |
| 4630 | * |
| 4631 | * Return value: |
| 4632 | * pointer to mode page / NULL on failure |
| 4633 | **/ |
| 4634 | static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, |
| 4635 | u32 page_code, u32 len) |
| 4636 | { |
| 4637 | struct ipr_mode_page_hdr *mode_hdr; |
| 4638 | u32 page_length; |
| 4639 | u32 length; |
| 4640 | |
| 4641 | if (!mode_pages || (mode_pages->hdr.length == 0)) |
| 4642 | return NULL; |
| 4643 | |
| 4644 | length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; |
| 4645 | mode_hdr = (struct ipr_mode_page_hdr *) |
| 4646 | (mode_pages->data + mode_pages->hdr.block_desc_len); |
| 4647 | |
| 4648 | while (length) { |
| 4649 | if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { |
| 4650 | if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) |
| 4651 | return mode_hdr; |
| 4652 | break; |
| 4653 | } else { |
| 4654 | page_length = (sizeof(struct ipr_mode_page_hdr) + |
| 4655 | mode_hdr->page_length); |
| 4656 | length -= page_length; |
| 4657 | mode_hdr = (struct ipr_mode_page_hdr *) |
| 4658 | ((unsigned long)mode_hdr + page_length); |
| 4659 | } |
| 4660 | } |
| 4661 | return NULL; |
| 4662 | } |
| 4663 | |
| 4664 | /** |
| 4665 | * ipr_check_term_power - Check for term power errors |
| 4666 | * @ioa_cfg: ioa config struct |
| 4667 | * @mode_pages: IOAFP mode pages buffer |
| 4668 | * |
| 4669 | * Check the IOAFP's mode page 28 for term power errors |
| 4670 | * |
| 4671 | * Return value: |
| 4672 | * nothing |
| 4673 | **/ |
| 4674 | static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, |
| 4675 | struct ipr_mode_pages *mode_pages) |
| 4676 | { |
| 4677 | int i; |
| 4678 | int entry_length; |
| 4679 | struct ipr_dev_bus_entry *bus; |
| 4680 | struct ipr_mode_page28 *mode_page; |
| 4681 | |
| 4682 | mode_page = ipr_get_mode_page(mode_pages, 0x28, |
| 4683 | sizeof(struct ipr_mode_page28)); |
| 4684 | |
| 4685 | entry_length = mode_page->entry_length; |
| 4686 | |
| 4687 | bus = mode_page->bus; |
| 4688 | |
| 4689 | for (i = 0; i < mode_page->num_entries; i++) { |
| 4690 | if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { |
| 4691 | dev_err(&ioa_cfg->pdev->dev, |
| 4692 | "Term power is absent on scsi bus %d\n", |
| 4693 | bus->res_addr.bus); |
| 4694 | } |
| 4695 | |
| 4696 | bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); |
| 4697 | } |
| 4698 | } |
| 4699 | |
| 4700 | /** |
| 4701 | * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table |
| 4702 | * @ioa_cfg: ioa config struct |
| 4703 | * |
| 4704 | * Looks through the config table checking for SES devices. If |
| 4705 | * the SES device is in the SES table indicating a maximum SCSI |
| 4706 | * bus speed, the speed is limited for the bus. |
| 4707 | * |
| 4708 | * Return value: |
| 4709 | * none |
| 4710 | **/ |
| 4711 | static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) |
| 4712 | { |
| 4713 | u32 max_xfer_rate; |
| 4714 | int i; |
| 4715 | |
| 4716 | for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { |
| 4717 | max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i, |
| 4718 | ioa_cfg->bus_attr[i].bus_width); |
| 4719 | |
| 4720 | if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) |
| 4721 | ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; |
| 4722 | } |
| 4723 | } |
| 4724 | |
| 4725 | /** |
| 4726 | * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 |
| 4727 | * @ioa_cfg: ioa config struct |
| 4728 | * @mode_pages: mode page 28 buffer |
| 4729 | * |
| 4730 | * Updates mode page 28 based on driver configuration |
| 4731 | * |
| 4732 | * Return value: |
| 4733 | * none |
| 4734 | **/ |
| 4735 | static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, |
| 4736 | struct ipr_mode_pages *mode_pages) |
| 4737 | { |
| 4738 | int i, entry_length; |
| 4739 | struct ipr_dev_bus_entry *bus; |
| 4740 | struct ipr_bus_attributes *bus_attr; |
| 4741 | struct ipr_mode_page28 *mode_page; |
| 4742 | |
| 4743 | mode_page = ipr_get_mode_page(mode_pages, 0x28, |
| 4744 | sizeof(struct ipr_mode_page28)); |
| 4745 | |
| 4746 | entry_length = mode_page->entry_length; |
| 4747 | |
| 4748 | /* Loop for each device bus entry */ |
| 4749 | for (i = 0, bus = mode_page->bus; |
| 4750 | i < mode_page->num_entries; |
| 4751 | i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { |
| 4752 | if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { |
| 4753 | dev_err(&ioa_cfg->pdev->dev, |
| 4754 | "Invalid resource address reported: 0x%08X\n", |
| 4755 | IPR_GET_PHYS_LOC(bus->res_addr)); |
| 4756 | continue; |
| 4757 | } |
| 4758 | |
| 4759 | bus_attr = &ioa_cfg->bus_attr[i]; |
| 4760 | bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; |
| 4761 | bus->bus_width = bus_attr->bus_width; |
| 4762 | bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); |
| 4763 | bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; |
| 4764 | if (bus_attr->qas_enabled) |
| 4765 | bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; |
| 4766 | else |
| 4767 | bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; |
| 4768 | } |
| 4769 | } |
| 4770 | |
| 4771 | /** |
| 4772 | * ipr_build_mode_select - Build a mode select command |
| 4773 | * @ipr_cmd: ipr command struct |
| 4774 | * @res_handle: resource handle to send command to |
| 4775 | * @parm: Byte 2 of Mode Sense command |
| 4776 | * @dma_addr: DMA buffer address |
| 4777 | * @xfer_len: data transfer length |
| 4778 | * |
| 4779 | * Return value: |
| 4780 | * none |
| 4781 | **/ |
| 4782 | static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, |
| 4783 | __be32 res_handle, u8 parm, u32 dma_addr, |
| 4784 | u8 xfer_len) |
| 4785 | { |
| 4786 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; |
| 4787 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
| 4788 | |
| 4789 | ioarcb->res_handle = res_handle; |
| 4790 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; |
| 4791 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
| 4792 | ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; |
| 4793 | ioarcb->cmd_pkt.cdb[1] = parm; |
| 4794 | ioarcb->cmd_pkt.cdb[4] = xfer_len; |
| 4795 | |
| 4796 | ioadl->flags_and_data_len = |
| 4797 | cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | xfer_len); |
| 4798 | ioadl->address = cpu_to_be32(dma_addr); |
| 4799 | ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); |
| 4800 | ioarcb->write_data_transfer_length = cpu_to_be32(xfer_len); |
| 4801 | } |
| 4802 | |
| 4803 | /** |
| 4804 | * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA |
| 4805 | * @ipr_cmd: ipr command struct |
| 4806 | * |
| 4807 | * This function sets up the SCSI bus attributes and sends |
| 4808 | * a Mode Select for Page 28 to activate them. |
| 4809 | * |
| 4810 | * Return value: |
| 4811 | * IPR_RC_JOB_RETURN |
| 4812 | **/ |
| 4813 | static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) |
| 4814 | { |
| 4815 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 4816 | struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; |
| 4817 | int length; |
| 4818 | |
| 4819 | ENTER; |
Brian King | 4733804 | 2006-02-08 20:57:42 -0600 | [diff] [blame] | 4820 | ipr_scsi_bus_speed_limit(ioa_cfg); |
| 4821 | ipr_check_term_power(ioa_cfg, mode_pages); |
| 4822 | ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); |
| 4823 | length = mode_pages->hdr.length + 1; |
| 4824 | mode_pages->hdr.length = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4825 | |
| 4826 | ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, |
| 4827 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), |
| 4828 | length); |
| 4829 | |
brking@us.ibm.com | 6227504 | 2005-11-01 17:01:14 -0600 | [diff] [blame] | 4830 | ipr_cmd->job_step = ipr_setup_write_cache; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4831 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); |
| 4832 | |
| 4833 | LEAVE; |
| 4834 | return IPR_RC_JOB_RETURN; |
| 4835 | } |
| 4836 | |
| 4837 | /** |
| 4838 | * ipr_build_mode_sense - Builds a mode sense command |
| 4839 | * @ipr_cmd: ipr command struct |
| 4840 | * @res: resource entry struct |
| 4841 | * @parm: Byte 2 of mode sense command |
| 4842 | * @dma_addr: DMA address of mode sense buffer |
| 4843 | * @xfer_len: Size of DMA buffer |
| 4844 | * |
| 4845 | * Return value: |
| 4846 | * none |
| 4847 | **/ |
| 4848 | static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, |
| 4849 | __be32 res_handle, |
| 4850 | u8 parm, u32 dma_addr, u8 xfer_len) |
| 4851 | { |
| 4852 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; |
| 4853 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
| 4854 | |
| 4855 | ioarcb->res_handle = res_handle; |
| 4856 | ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; |
| 4857 | ioarcb->cmd_pkt.cdb[2] = parm; |
| 4858 | ioarcb->cmd_pkt.cdb[4] = xfer_len; |
| 4859 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; |
| 4860 | |
| 4861 | ioadl->flags_and_data_len = |
| 4862 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len); |
| 4863 | ioadl->address = cpu_to_be32(dma_addr); |
| 4864 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); |
| 4865 | ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len); |
| 4866 | } |
| 4867 | |
| 4868 | /** |
brking@us.ibm.com | dfed823 | 2005-11-01 17:02:55 -0600 | [diff] [blame] | 4869 | * ipr_reset_cmd_failed - Handle failure of IOA reset command |
| 4870 | * @ipr_cmd: ipr command struct |
| 4871 | * |
| 4872 | * This function handles the failure of an IOA bringup command. |
| 4873 | * |
| 4874 | * Return value: |
| 4875 | * IPR_RC_JOB_RETURN |
| 4876 | **/ |
| 4877 | static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) |
| 4878 | { |
| 4879 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 4880 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); |
| 4881 | |
| 4882 | dev_err(&ioa_cfg->pdev->dev, |
| 4883 | "0x%02X failed with IOASC: 0x%08X\n", |
| 4884 | ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); |
| 4885 | |
| 4886 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
| 4887 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); |
| 4888 | return IPR_RC_JOB_RETURN; |
| 4889 | } |
| 4890 | |
| 4891 | /** |
| 4892 | * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense |
| 4893 | * @ipr_cmd: ipr command struct |
| 4894 | * |
| 4895 | * This function handles the failure of a Mode Sense to the IOAFP. |
| 4896 | * Some adapters do not handle all mode pages. |
| 4897 | * |
| 4898 | * Return value: |
| 4899 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 4900 | **/ |
| 4901 | static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) |
| 4902 | { |
| 4903 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); |
| 4904 | |
| 4905 | if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { |
| 4906 | ipr_cmd->job_step = ipr_setup_write_cache; |
| 4907 | return IPR_RC_JOB_CONTINUE; |
| 4908 | } |
| 4909 | |
| 4910 | return ipr_reset_cmd_failed(ipr_cmd); |
| 4911 | } |
| 4912 | |
| 4913 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4914 | * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA |
| 4915 | * @ipr_cmd: ipr command struct |
| 4916 | * |
| 4917 | * This function send a Page 28 mode sense to the IOA to |
| 4918 | * retrieve SCSI bus attributes. |
| 4919 | * |
| 4920 | * Return value: |
| 4921 | * IPR_RC_JOB_RETURN |
| 4922 | **/ |
| 4923 | static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) |
| 4924 | { |
| 4925 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 4926 | |
| 4927 | ENTER; |
| 4928 | ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), |
| 4929 | 0x28, ioa_cfg->vpd_cbs_dma + |
| 4930 | offsetof(struct ipr_misc_cbs, mode_pages), |
| 4931 | sizeof(struct ipr_mode_pages)); |
| 4932 | |
| 4933 | ipr_cmd->job_step = ipr_ioafp_mode_select_page28; |
brking@us.ibm.com | dfed823 | 2005-11-01 17:02:55 -0600 | [diff] [blame] | 4934 | ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4935 | |
| 4936 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); |
| 4937 | |
| 4938 | LEAVE; |
| 4939 | return IPR_RC_JOB_RETURN; |
| 4940 | } |
| 4941 | |
| 4942 | /** |
| 4943 | * ipr_init_res_table - Initialize the resource table |
| 4944 | * @ipr_cmd: ipr command struct |
| 4945 | * |
| 4946 | * This function looks through the existing resource table, comparing |
| 4947 | * it with the config table. This function will take care of old/new |
| 4948 | * devices and schedule adding/removing them from the mid-layer |
| 4949 | * as appropriate. |
| 4950 | * |
| 4951 | * Return value: |
| 4952 | * IPR_RC_JOB_CONTINUE |
| 4953 | **/ |
| 4954 | static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) |
| 4955 | { |
| 4956 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 4957 | struct ipr_resource_entry *res, *temp; |
| 4958 | struct ipr_config_table_entry *cfgte; |
| 4959 | int found, i; |
| 4960 | LIST_HEAD(old_res); |
| 4961 | |
| 4962 | ENTER; |
| 4963 | if (ioa_cfg->cfg_table->hdr.flags & IPR_UCODE_DOWNLOAD_REQ) |
| 4964 | dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n"); |
| 4965 | |
| 4966 | list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) |
| 4967 | list_move_tail(&res->queue, &old_res); |
| 4968 | |
| 4969 | for (i = 0; i < ioa_cfg->cfg_table->hdr.num_entries; i++) { |
| 4970 | cfgte = &ioa_cfg->cfg_table->dev[i]; |
| 4971 | found = 0; |
| 4972 | |
| 4973 | list_for_each_entry_safe(res, temp, &old_res, queue) { |
| 4974 | if (!memcmp(&res->cfgte.res_addr, |
| 4975 | &cfgte->res_addr, sizeof(cfgte->res_addr))) { |
| 4976 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); |
| 4977 | found = 1; |
| 4978 | break; |
| 4979 | } |
| 4980 | } |
| 4981 | |
| 4982 | if (!found) { |
| 4983 | if (list_empty(&ioa_cfg->free_res_q)) { |
| 4984 | dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n"); |
| 4985 | break; |
| 4986 | } |
| 4987 | |
| 4988 | found = 1; |
| 4989 | res = list_entry(ioa_cfg->free_res_q.next, |
| 4990 | struct ipr_resource_entry, queue); |
| 4991 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); |
| 4992 | ipr_init_res_entry(res); |
| 4993 | res->add_to_ml = 1; |
| 4994 | } |
| 4995 | |
| 4996 | if (found) |
| 4997 | memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry)); |
| 4998 | } |
| 4999 | |
| 5000 | list_for_each_entry_safe(res, temp, &old_res, queue) { |
| 5001 | if (res->sdev) { |
| 5002 | res->del_from_ml = 1; |
Brian King | 1121b79 | 2006-03-29 09:37:16 -0600 | [diff] [blame] | 5003 | res->cfgte.res_handle = IPR_INVALID_RES_HANDLE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5004 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); |
| 5005 | } else { |
| 5006 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); |
| 5007 | } |
| 5008 | } |
| 5009 | |
| 5010 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; |
| 5011 | |
| 5012 | LEAVE; |
| 5013 | return IPR_RC_JOB_CONTINUE; |
| 5014 | } |
| 5015 | |
| 5016 | /** |
| 5017 | * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. |
| 5018 | * @ipr_cmd: ipr command struct |
| 5019 | * |
| 5020 | * This function sends a Query IOA Configuration command |
| 5021 | * to the adapter to retrieve the IOA configuration table. |
| 5022 | * |
| 5023 | * Return value: |
| 5024 | * IPR_RC_JOB_RETURN |
| 5025 | **/ |
| 5026 | static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) |
| 5027 | { |
| 5028 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 5029 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
| 5030 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; |
| 5031 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; |
| 5032 | |
| 5033 | ENTER; |
| 5034 | dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", |
| 5035 | ucode_vpd->major_release, ucode_vpd->card_type, |
| 5036 | ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); |
| 5037 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
| 5038 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
| 5039 | |
| 5040 | ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; |
| 5041 | ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_config_table) >> 8) & 0xff; |
| 5042 | ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_config_table) & 0xff; |
| 5043 | |
| 5044 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); |
| 5045 | ioarcb->read_data_transfer_length = |
| 5046 | cpu_to_be32(sizeof(struct ipr_config_table)); |
| 5047 | |
| 5048 | ioadl->address = cpu_to_be32(ioa_cfg->cfg_table_dma); |
| 5049 | ioadl->flags_and_data_len = |
| 5050 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(struct ipr_config_table)); |
| 5051 | |
| 5052 | ipr_cmd->job_step = ipr_init_res_table; |
| 5053 | |
| 5054 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); |
| 5055 | |
| 5056 | LEAVE; |
| 5057 | return IPR_RC_JOB_RETURN; |
| 5058 | } |
| 5059 | |
| 5060 | /** |
| 5061 | * ipr_ioafp_inquiry - Send an Inquiry to the adapter. |
| 5062 | * @ipr_cmd: ipr command struct |
| 5063 | * |
| 5064 | * This utility function sends an inquiry to the adapter. |
| 5065 | * |
| 5066 | * Return value: |
| 5067 | * none |
| 5068 | **/ |
| 5069 | static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, |
| 5070 | u32 dma_addr, u8 xfer_len) |
| 5071 | { |
| 5072 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
| 5073 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; |
| 5074 | |
| 5075 | ENTER; |
| 5076 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; |
| 5077 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
| 5078 | |
| 5079 | ioarcb->cmd_pkt.cdb[0] = INQUIRY; |
| 5080 | ioarcb->cmd_pkt.cdb[1] = flags; |
| 5081 | ioarcb->cmd_pkt.cdb[2] = page; |
| 5082 | ioarcb->cmd_pkt.cdb[4] = xfer_len; |
| 5083 | |
| 5084 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); |
| 5085 | ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len); |
| 5086 | |
| 5087 | ioadl->address = cpu_to_be32(dma_addr); |
| 5088 | ioadl->flags_and_data_len = |
| 5089 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len); |
| 5090 | |
| 5091 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); |
| 5092 | LEAVE; |
| 5093 | } |
| 5094 | |
| 5095 | /** |
brking@us.ibm.com | 6227504 | 2005-11-01 17:01:14 -0600 | [diff] [blame] | 5096 | * ipr_inquiry_page_supported - Is the given inquiry page supported |
| 5097 | * @page0: inquiry page 0 buffer |
| 5098 | * @page: page code. |
| 5099 | * |
| 5100 | * This function determines if the specified inquiry page is supported. |
| 5101 | * |
| 5102 | * Return value: |
| 5103 | * 1 if page is supported / 0 if not |
| 5104 | **/ |
| 5105 | static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) |
| 5106 | { |
| 5107 | int i; |
| 5108 | |
| 5109 | for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) |
| 5110 | if (page0->page[i] == page) |
| 5111 | return 1; |
| 5112 | |
| 5113 | return 0; |
| 5114 | } |
| 5115 | |
| 5116 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5117 | * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. |
| 5118 | * @ipr_cmd: ipr command struct |
| 5119 | * |
| 5120 | * This function sends a Page 3 inquiry to the adapter |
| 5121 | * to retrieve software VPD information. |
| 5122 | * |
| 5123 | * Return value: |
| 5124 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 5125 | **/ |
| 5126 | static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) |
| 5127 | { |
| 5128 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
brking@us.ibm.com | 6227504 | 2005-11-01 17:01:14 -0600 | [diff] [blame] | 5129 | struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; |
| 5130 | |
| 5131 | ENTER; |
| 5132 | |
| 5133 | if (!ipr_inquiry_page_supported(page0, 1)) |
| 5134 | ioa_cfg->cache_state = CACHE_NONE; |
| 5135 | |
| 5136 | ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; |
| 5137 | |
| 5138 | ipr_ioafp_inquiry(ipr_cmd, 1, 3, |
| 5139 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), |
| 5140 | sizeof(struct ipr_inquiry_page3)); |
| 5141 | |
| 5142 | LEAVE; |
| 5143 | return IPR_RC_JOB_RETURN; |
| 5144 | } |
| 5145 | |
| 5146 | /** |
| 5147 | * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. |
| 5148 | * @ipr_cmd: ipr command struct |
| 5149 | * |
| 5150 | * This function sends a Page 0 inquiry to the adapter |
| 5151 | * to retrieve supported inquiry pages. |
| 5152 | * |
| 5153 | * Return value: |
| 5154 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 5155 | **/ |
| 5156 | static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) |
| 5157 | { |
| 5158 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5159 | char type[5]; |
| 5160 | |
| 5161 | ENTER; |
| 5162 | |
| 5163 | /* Grab the type out of the VPD and store it away */ |
| 5164 | memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); |
| 5165 | type[4] = '\0'; |
| 5166 | ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); |
| 5167 | |
brking@us.ibm.com | 6227504 | 2005-11-01 17:01:14 -0600 | [diff] [blame] | 5168 | ipr_cmd->job_step = ipr_ioafp_page3_inquiry; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5169 | |
brking@us.ibm.com | 6227504 | 2005-11-01 17:01:14 -0600 | [diff] [blame] | 5170 | ipr_ioafp_inquiry(ipr_cmd, 1, 0, |
| 5171 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), |
| 5172 | sizeof(struct ipr_inquiry_page0)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5173 | |
| 5174 | LEAVE; |
| 5175 | return IPR_RC_JOB_RETURN; |
| 5176 | } |
| 5177 | |
| 5178 | /** |
| 5179 | * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. |
| 5180 | * @ipr_cmd: ipr command struct |
| 5181 | * |
| 5182 | * This function sends a standard inquiry to the adapter. |
| 5183 | * |
| 5184 | * Return value: |
| 5185 | * IPR_RC_JOB_RETURN |
| 5186 | **/ |
| 5187 | static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) |
| 5188 | { |
| 5189 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 5190 | |
| 5191 | ENTER; |
brking@us.ibm.com | 6227504 | 2005-11-01 17:01:14 -0600 | [diff] [blame] | 5192 | ipr_cmd->job_step = ipr_ioafp_page0_inquiry; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5193 | |
| 5194 | ipr_ioafp_inquiry(ipr_cmd, 0, 0, |
| 5195 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), |
| 5196 | sizeof(struct ipr_ioa_vpd)); |
| 5197 | |
| 5198 | LEAVE; |
| 5199 | return IPR_RC_JOB_RETURN; |
| 5200 | } |
| 5201 | |
| 5202 | /** |
| 5203 | * ipr_ioafp_indentify_hrrq - Send Identify Host RRQ. |
| 5204 | * @ipr_cmd: ipr command struct |
| 5205 | * |
| 5206 | * This function send an Identify Host Request Response Queue |
| 5207 | * command to establish the HRRQ with the adapter. |
| 5208 | * |
| 5209 | * Return value: |
| 5210 | * IPR_RC_JOB_RETURN |
| 5211 | **/ |
| 5212 | static int ipr_ioafp_indentify_hrrq(struct ipr_cmnd *ipr_cmd) |
| 5213 | { |
| 5214 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 5215 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
| 5216 | |
| 5217 | ENTER; |
| 5218 | dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n"); |
| 5219 | |
| 5220 | ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; |
| 5221 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
| 5222 | |
| 5223 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
| 5224 | ioarcb->cmd_pkt.cdb[2] = |
| 5225 | ((u32) ioa_cfg->host_rrq_dma >> 24) & 0xff; |
| 5226 | ioarcb->cmd_pkt.cdb[3] = |
| 5227 | ((u32) ioa_cfg->host_rrq_dma >> 16) & 0xff; |
| 5228 | ioarcb->cmd_pkt.cdb[4] = |
| 5229 | ((u32) ioa_cfg->host_rrq_dma >> 8) & 0xff; |
| 5230 | ioarcb->cmd_pkt.cdb[5] = |
| 5231 | ((u32) ioa_cfg->host_rrq_dma) & 0xff; |
| 5232 | ioarcb->cmd_pkt.cdb[7] = |
| 5233 | ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff; |
| 5234 | ioarcb->cmd_pkt.cdb[8] = |
| 5235 | (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff; |
| 5236 | |
| 5237 | ipr_cmd->job_step = ipr_ioafp_std_inquiry; |
| 5238 | |
| 5239 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); |
| 5240 | |
| 5241 | LEAVE; |
| 5242 | return IPR_RC_JOB_RETURN; |
| 5243 | } |
| 5244 | |
| 5245 | /** |
| 5246 | * ipr_reset_timer_done - Adapter reset timer function |
| 5247 | * @ipr_cmd: ipr command struct |
| 5248 | * |
| 5249 | * Description: This function is used in adapter reset processing |
| 5250 | * for timing events. If the reset_cmd pointer in the IOA |
| 5251 | * config struct is not this adapter's we are doing nested |
| 5252 | * resets and fail_all_ops will take care of freeing the |
| 5253 | * command block. |
| 5254 | * |
| 5255 | * Return value: |
| 5256 | * none |
| 5257 | **/ |
| 5258 | static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd) |
| 5259 | { |
| 5260 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 5261 | unsigned long lock_flags = 0; |
| 5262 | |
| 5263 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 5264 | |
| 5265 | if (ioa_cfg->reset_cmd == ipr_cmd) { |
| 5266 | list_del(&ipr_cmd->queue); |
| 5267 | ipr_cmd->done(ipr_cmd); |
| 5268 | } |
| 5269 | |
| 5270 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 5271 | } |
| 5272 | |
| 5273 | /** |
| 5274 | * ipr_reset_start_timer - Start a timer for adapter reset job |
| 5275 | * @ipr_cmd: ipr command struct |
| 5276 | * @timeout: timeout value |
| 5277 | * |
| 5278 | * Description: This function is used in adapter reset processing |
| 5279 | * for timing events. If the reset_cmd pointer in the IOA |
| 5280 | * config struct is not this adapter's we are doing nested |
| 5281 | * resets and fail_all_ops will take care of freeing the |
| 5282 | * command block. |
| 5283 | * |
| 5284 | * Return value: |
| 5285 | * none |
| 5286 | **/ |
| 5287 | static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, |
| 5288 | unsigned long timeout) |
| 5289 | { |
| 5290 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); |
| 5291 | ipr_cmd->done = ipr_reset_ioa_job; |
| 5292 | |
| 5293 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; |
| 5294 | ipr_cmd->timer.expires = jiffies + timeout; |
| 5295 | ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done; |
| 5296 | add_timer(&ipr_cmd->timer); |
| 5297 | } |
| 5298 | |
| 5299 | /** |
| 5300 | * ipr_init_ioa_mem - Initialize ioa_cfg control block |
| 5301 | * @ioa_cfg: ioa cfg struct |
| 5302 | * |
| 5303 | * Return value: |
| 5304 | * nothing |
| 5305 | **/ |
| 5306 | static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) |
| 5307 | { |
| 5308 | memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS); |
| 5309 | |
| 5310 | /* Initialize Host RRQ pointers */ |
| 5311 | ioa_cfg->hrrq_start = ioa_cfg->host_rrq; |
| 5312 | ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1]; |
| 5313 | ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; |
| 5314 | ioa_cfg->toggle_bit = 1; |
| 5315 | |
| 5316 | /* Zero out config table */ |
| 5317 | memset(ioa_cfg->cfg_table, 0, sizeof(struct ipr_config_table)); |
| 5318 | } |
| 5319 | |
| 5320 | /** |
| 5321 | * ipr_reset_enable_ioa - Enable the IOA following a reset. |
| 5322 | * @ipr_cmd: ipr command struct |
| 5323 | * |
| 5324 | * This function reinitializes some control blocks and |
| 5325 | * enables destructive diagnostics on the adapter. |
| 5326 | * |
| 5327 | * Return value: |
| 5328 | * IPR_RC_JOB_RETURN |
| 5329 | **/ |
| 5330 | static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) |
| 5331 | { |
| 5332 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 5333 | volatile u32 int_reg; |
| 5334 | |
| 5335 | ENTER; |
| 5336 | ipr_cmd->job_step = ipr_ioafp_indentify_hrrq; |
| 5337 | ipr_init_ioa_mem(ioa_cfg); |
| 5338 | |
| 5339 | ioa_cfg->allow_interrupts = 1; |
| 5340 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); |
| 5341 | |
| 5342 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { |
| 5343 | writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), |
| 5344 | ioa_cfg->regs.clr_interrupt_mask_reg); |
| 5345 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); |
| 5346 | return IPR_RC_JOB_CONTINUE; |
| 5347 | } |
| 5348 | |
| 5349 | /* Enable destructive diagnostics on IOA */ |
brking@us.ibm.com | 3d1d0da | 2005-11-01 17:01:54 -0600 | [diff] [blame] | 5350 | writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5351 | |
| 5352 | writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg); |
| 5353 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); |
| 5354 | |
| 5355 | dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n"); |
| 5356 | |
| 5357 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; |
| 5358 | ipr_cmd->timer.expires = jiffies + (ipr_transop_timeout * HZ); |
| 5359 | ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; |
| 5360 | ipr_cmd->done = ipr_reset_ioa_job; |
| 5361 | add_timer(&ipr_cmd->timer); |
| 5362 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); |
| 5363 | |
| 5364 | LEAVE; |
| 5365 | return IPR_RC_JOB_RETURN; |
| 5366 | } |
| 5367 | |
| 5368 | /** |
| 5369 | * ipr_reset_wait_for_dump - Wait for a dump to timeout. |
| 5370 | * @ipr_cmd: ipr command struct |
| 5371 | * |
| 5372 | * This function is invoked when an adapter dump has run out |
| 5373 | * of processing time. |
| 5374 | * |
| 5375 | * Return value: |
| 5376 | * IPR_RC_JOB_CONTINUE |
| 5377 | **/ |
| 5378 | static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) |
| 5379 | { |
| 5380 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 5381 | |
| 5382 | if (ioa_cfg->sdt_state == GET_DUMP) |
| 5383 | ioa_cfg->sdt_state = ABORT_DUMP; |
| 5384 | |
| 5385 | ipr_cmd->job_step = ipr_reset_alert; |
| 5386 | |
| 5387 | return IPR_RC_JOB_CONTINUE; |
| 5388 | } |
| 5389 | |
| 5390 | /** |
| 5391 | * ipr_unit_check_no_data - Log a unit check/no data error log |
| 5392 | * @ioa_cfg: ioa config struct |
| 5393 | * |
| 5394 | * Logs an error indicating the adapter unit checked, but for some |
| 5395 | * reason, we were unable to fetch the unit check buffer. |
| 5396 | * |
| 5397 | * Return value: |
| 5398 | * nothing |
| 5399 | **/ |
| 5400 | static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) |
| 5401 | { |
| 5402 | ioa_cfg->errors_logged++; |
| 5403 | dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n"); |
| 5404 | } |
| 5405 | |
| 5406 | /** |
| 5407 | * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA |
| 5408 | * @ioa_cfg: ioa config struct |
| 5409 | * |
| 5410 | * Fetches the unit check buffer from the adapter by clocking the data |
| 5411 | * through the mailbox register. |
| 5412 | * |
| 5413 | * Return value: |
| 5414 | * nothing |
| 5415 | **/ |
| 5416 | static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) |
| 5417 | { |
| 5418 | unsigned long mailbox; |
| 5419 | struct ipr_hostrcb *hostrcb; |
| 5420 | struct ipr_uc_sdt sdt; |
| 5421 | int rc, length; |
| 5422 | |
| 5423 | mailbox = readl(ioa_cfg->ioa_mailbox); |
| 5424 | |
| 5425 | if (!ipr_sdt_is_fmt2(mailbox)) { |
| 5426 | ipr_unit_check_no_data(ioa_cfg); |
| 5427 | return; |
| 5428 | } |
| 5429 | |
| 5430 | memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); |
| 5431 | rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt, |
| 5432 | (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); |
| 5433 | |
| 5434 | if (rc || (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE) || |
| 5435 | !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY)) { |
| 5436 | ipr_unit_check_no_data(ioa_cfg); |
| 5437 | return; |
| 5438 | } |
| 5439 | |
| 5440 | /* Find length of the first sdt entry (UC buffer) */ |
| 5441 | length = (be32_to_cpu(sdt.entry[0].end_offset) - |
| 5442 | be32_to_cpu(sdt.entry[0].bar_str_offset)) & IPR_FMT2_MBX_ADDR_MASK; |
| 5443 | |
| 5444 | hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, |
| 5445 | struct ipr_hostrcb, queue); |
| 5446 | list_del(&hostrcb->queue); |
| 5447 | memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); |
| 5448 | |
| 5449 | rc = ipr_get_ldump_data_section(ioa_cfg, |
| 5450 | be32_to_cpu(sdt.entry[0].bar_str_offset), |
| 5451 | (__be32 *)&hostrcb->hcam, |
| 5452 | min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); |
| 5453 | |
| 5454 | if (!rc) |
| 5455 | ipr_handle_log_data(ioa_cfg, hostrcb); |
| 5456 | else |
| 5457 | ipr_unit_check_no_data(ioa_cfg); |
| 5458 | |
| 5459 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); |
| 5460 | } |
| 5461 | |
| 5462 | /** |
| 5463 | * ipr_reset_restore_cfg_space - Restore PCI config space. |
| 5464 | * @ipr_cmd: ipr command struct |
| 5465 | * |
| 5466 | * Description: This function restores the saved PCI config space of |
| 5467 | * the adapter, fails all outstanding ops back to the callers, and |
| 5468 | * fetches the dump/unit check if applicable to this reset. |
| 5469 | * |
| 5470 | * Return value: |
| 5471 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 5472 | **/ |
| 5473 | static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) |
| 5474 | { |
| 5475 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 5476 | int rc; |
| 5477 | |
| 5478 | ENTER; |
Brian King | b30197d | 2005-09-27 01:21:56 -0700 | [diff] [blame] | 5479 | pci_unblock_user_cfg_access(ioa_cfg->pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5480 | rc = pci_restore_state(ioa_cfg->pdev); |
| 5481 | |
| 5482 | if (rc != PCIBIOS_SUCCESSFUL) { |
| 5483 | ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); |
| 5484 | return IPR_RC_JOB_CONTINUE; |
| 5485 | } |
| 5486 | |
| 5487 | if (ipr_set_pcix_cmd_reg(ioa_cfg)) { |
| 5488 | ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); |
| 5489 | return IPR_RC_JOB_CONTINUE; |
| 5490 | } |
| 5491 | |
| 5492 | ipr_fail_all_ops(ioa_cfg); |
| 5493 | |
| 5494 | if (ioa_cfg->ioa_unit_checked) { |
| 5495 | ioa_cfg->ioa_unit_checked = 0; |
| 5496 | ipr_get_unit_check_buffer(ioa_cfg); |
| 5497 | ipr_cmd->job_step = ipr_reset_alert; |
| 5498 | ipr_reset_start_timer(ipr_cmd, 0); |
| 5499 | return IPR_RC_JOB_RETURN; |
| 5500 | } |
| 5501 | |
| 5502 | if (ioa_cfg->in_ioa_bringdown) { |
| 5503 | ipr_cmd->job_step = ipr_ioa_bringdown_done; |
| 5504 | } else { |
| 5505 | ipr_cmd->job_step = ipr_reset_enable_ioa; |
| 5506 | |
| 5507 | if (GET_DUMP == ioa_cfg->sdt_state) { |
| 5508 | ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT); |
| 5509 | ipr_cmd->job_step = ipr_reset_wait_for_dump; |
| 5510 | schedule_work(&ioa_cfg->work_q); |
| 5511 | return IPR_RC_JOB_RETURN; |
| 5512 | } |
| 5513 | } |
| 5514 | |
| 5515 | ENTER; |
| 5516 | return IPR_RC_JOB_CONTINUE; |
| 5517 | } |
| 5518 | |
| 5519 | /** |
| 5520 | * ipr_reset_start_bist - Run BIST on the adapter. |
| 5521 | * @ipr_cmd: ipr command struct |
| 5522 | * |
| 5523 | * Description: This function runs BIST on the adapter, then delays 2 seconds. |
| 5524 | * |
| 5525 | * Return value: |
| 5526 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 5527 | **/ |
| 5528 | static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) |
| 5529 | { |
| 5530 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 5531 | int rc; |
| 5532 | |
| 5533 | ENTER; |
Brian King | b30197d | 2005-09-27 01:21:56 -0700 | [diff] [blame] | 5534 | pci_block_user_cfg_access(ioa_cfg->pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5535 | rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); |
| 5536 | |
| 5537 | if (rc != PCIBIOS_SUCCESSFUL) { |
| 5538 | ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); |
| 5539 | rc = IPR_RC_JOB_CONTINUE; |
| 5540 | } else { |
| 5541 | ipr_cmd->job_step = ipr_reset_restore_cfg_space; |
| 5542 | ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); |
| 5543 | rc = IPR_RC_JOB_RETURN; |
| 5544 | } |
| 5545 | |
| 5546 | LEAVE; |
| 5547 | return rc; |
| 5548 | } |
| 5549 | |
| 5550 | /** |
| 5551 | * ipr_reset_allowed - Query whether or not IOA can be reset |
| 5552 | * @ioa_cfg: ioa config struct |
| 5553 | * |
| 5554 | * Return value: |
| 5555 | * 0 if reset not allowed / non-zero if reset is allowed |
| 5556 | **/ |
| 5557 | static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) |
| 5558 | { |
| 5559 | volatile u32 temp_reg; |
| 5560 | |
| 5561 | temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg); |
| 5562 | return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); |
| 5563 | } |
| 5564 | |
| 5565 | /** |
| 5566 | * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. |
| 5567 | * @ipr_cmd: ipr command struct |
| 5568 | * |
| 5569 | * Description: This function waits for adapter permission to run BIST, |
| 5570 | * then runs BIST. If the adapter does not give permission after a |
| 5571 | * reasonable time, we will reset the adapter anyway. The impact of |
| 5572 | * resetting the adapter without warning the adapter is the risk of |
| 5573 | * losing the persistent error log on the adapter. If the adapter is |
| 5574 | * reset while it is writing to the flash on the adapter, the flash |
| 5575 | * segment will have bad ECC and be zeroed. |
| 5576 | * |
| 5577 | * Return value: |
| 5578 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 5579 | **/ |
| 5580 | static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) |
| 5581 | { |
| 5582 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 5583 | int rc = IPR_RC_JOB_RETURN; |
| 5584 | |
| 5585 | if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { |
| 5586 | ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; |
| 5587 | ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); |
| 5588 | } else { |
| 5589 | ipr_cmd->job_step = ipr_reset_start_bist; |
| 5590 | rc = IPR_RC_JOB_CONTINUE; |
| 5591 | } |
| 5592 | |
| 5593 | return rc; |
| 5594 | } |
| 5595 | |
| 5596 | /** |
| 5597 | * ipr_reset_alert_part2 - Alert the adapter of a pending reset |
| 5598 | * @ipr_cmd: ipr command struct |
| 5599 | * |
| 5600 | * Description: This function alerts the adapter that it will be reset. |
| 5601 | * If memory space is not currently enabled, proceed directly |
| 5602 | * to running BIST on the adapter. The timer must always be started |
| 5603 | * so we guarantee we do not run BIST from ipr_isr. |
| 5604 | * |
| 5605 | * Return value: |
| 5606 | * IPR_RC_JOB_RETURN |
| 5607 | **/ |
| 5608 | static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) |
| 5609 | { |
| 5610 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 5611 | u16 cmd_reg; |
| 5612 | int rc; |
| 5613 | |
| 5614 | ENTER; |
| 5615 | rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg); |
| 5616 | |
| 5617 | if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { |
| 5618 | ipr_mask_and_clear_interrupts(ioa_cfg, ~0); |
| 5619 | writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg); |
| 5620 | ipr_cmd->job_step = ipr_reset_wait_to_start_bist; |
| 5621 | } else { |
| 5622 | ipr_cmd->job_step = ipr_reset_start_bist; |
| 5623 | } |
| 5624 | |
| 5625 | ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; |
| 5626 | ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); |
| 5627 | |
| 5628 | LEAVE; |
| 5629 | return IPR_RC_JOB_RETURN; |
| 5630 | } |
| 5631 | |
| 5632 | /** |
| 5633 | * ipr_reset_ucode_download_done - Microcode download completion |
| 5634 | * @ipr_cmd: ipr command struct |
| 5635 | * |
| 5636 | * Description: This function unmaps the microcode download buffer. |
| 5637 | * |
| 5638 | * Return value: |
| 5639 | * IPR_RC_JOB_CONTINUE |
| 5640 | **/ |
| 5641 | static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) |
| 5642 | { |
| 5643 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 5644 | struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; |
| 5645 | |
| 5646 | pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist, |
| 5647 | sglist->num_sg, DMA_TO_DEVICE); |
| 5648 | |
| 5649 | ipr_cmd->job_step = ipr_reset_alert; |
| 5650 | return IPR_RC_JOB_CONTINUE; |
| 5651 | } |
| 5652 | |
| 5653 | /** |
| 5654 | * ipr_reset_ucode_download - Download microcode to the adapter |
| 5655 | * @ipr_cmd: ipr command struct |
| 5656 | * |
| 5657 | * Description: This function checks to see if it there is microcode |
| 5658 | * to download to the adapter. If there is, a download is performed. |
| 5659 | * |
| 5660 | * Return value: |
| 5661 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 5662 | **/ |
| 5663 | static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) |
| 5664 | { |
| 5665 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 5666 | struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; |
| 5667 | |
| 5668 | ENTER; |
| 5669 | ipr_cmd->job_step = ipr_reset_alert; |
| 5670 | |
| 5671 | if (!sglist) |
| 5672 | return IPR_RC_JOB_CONTINUE; |
| 5673 | |
| 5674 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
| 5675 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; |
| 5676 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; |
| 5677 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; |
| 5678 | ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; |
| 5679 | ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; |
| 5680 | ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; |
| 5681 | |
brking@us.ibm.com | 12baa42 | 2005-11-01 17:01:27 -0600 | [diff] [blame] | 5682 | ipr_build_ucode_ioadl(ipr_cmd, sglist); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5683 | ipr_cmd->job_step = ipr_reset_ucode_download_done; |
| 5684 | |
| 5685 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, |
| 5686 | IPR_WRITE_BUFFER_TIMEOUT); |
| 5687 | |
| 5688 | LEAVE; |
| 5689 | return IPR_RC_JOB_RETURN; |
| 5690 | } |
| 5691 | |
| 5692 | /** |
| 5693 | * ipr_reset_shutdown_ioa - Shutdown the adapter |
| 5694 | * @ipr_cmd: ipr command struct |
| 5695 | * |
| 5696 | * Description: This function issues an adapter shutdown of the |
| 5697 | * specified type to the specified adapter as part of the |
| 5698 | * adapter reset job. |
| 5699 | * |
| 5700 | * Return value: |
| 5701 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 5702 | **/ |
| 5703 | static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) |
| 5704 | { |
| 5705 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 5706 | enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; |
| 5707 | unsigned long timeout; |
| 5708 | int rc = IPR_RC_JOB_CONTINUE; |
| 5709 | |
| 5710 | ENTER; |
| 5711 | if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) { |
| 5712 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
| 5713 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
| 5714 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; |
| 5715 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; |
| 5716 | |
| 5717 | if (shutdown_type == IPR_SHUTDOWN_ABBREV) |
| 5718 | timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; |
| 5719 | else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) |
| 5720 | timeout = IPR_INTERNAL_TIMEOUT; |
| 5721 | else |
| 5722 | timeout = IPR_SHUTDOWN_TIMEOUT; |
| 5723 | |
| 5724 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); |
| 5725 | |
| 5726 | rc = IPR_RC_JOB_RETURN; |
| 5727 | ipr_cmd->job_step = ipr_reset_ucode_download; |
| 5728 | } else |
| 5729 | ipr_cmd->job_step = ipr_reset_alert; |
| 5730 | |
| 5731 | LEAVE; |
| 5732 | return rc; |
| 5733 | } |
| 5734 | |
| 5735 | /** |
| 5736 | * ipr_reset_ioa_job - Adapter reset job |
| 5737 | * @ipr_cmd: ipr command struct |
| 5738 | * |
| 5739 | * Description: This function is the job router for the adapter reset job. |
| 5740 | * |
| 5741 | * Return value: |
| 5742 | * none |
| 5743 | **/ |
| 5744 | static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) |
| 5745 | { |
| 5746 | u32 rc, ioasc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5747 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 5748 | |
| 5749 | do { |
| 5750 | ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); |
| 5751 | |
| 5752 | if (ioa_cfg->reset_cmd != ipr_cmd) { |
| 5753 | /* |
| 5754 | * We are doing nested adapter resets and this is |
| 5755 | * not the current reset job. |
| 5756 | */ |
| 5757 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); |
| 5758 | return; |
| 5759 | } |
| 5760 | |
| 5761 | if (IPR_IOASC_SENSE_KEY(ioasc)) { |
brking@us.ibm.com | dfed823 | 2005-11-01 17:02:55 -0600 | [diff] [blame] | 5762 | rc = ipr_cmd->job_step_failed(ipr_cmd); |
| 5763 | if (rc == IPR_RC_JOB_RETURN) |
| 5764 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5765 | } |
| 5766 | |
| 5767 | ipr_reinit_ipr_cmnd(ipr_cmd); |
brking@us.ibm.com | dfed823 | 2005-11-01 17:02:55 -0600 | [diff] [blame] | 5768 | ipr_cmd->job_step_failed = ipr_reset_cmd_failed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5769 | rc = ipr_cmd->job_step(ipr_cmd); |
| 5770 | } while(rc == IPR_RC_JOB_CONTINUE); |
| 5771 | } |
| 5772 | |
| 5773 | /** |
| 5774 | * _ipr_initiate_ioa_reset - Initiate an adapter reset |
| 5775 | * @ioa_cfg: ioa config struct |
| 5776 | * @job_step: first job step of reset job |
| 5777 | * @shutdown_type: shutdown type |
| 5778 | * |
| 5779 | * Description: This function will initiate the reset of the given adapter |
| 5780 | * starting at the selected job step. |
| 5781 | * If the caller needs to wait on the completion of the reset, |
| 5782 | * the caller must sleep on the reset_wait_q. |
| 5783 | * |
| 5784 | * Return value: |
| 5785 | * none |
| 5786 | **/ |
| 5787 | static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, |
| 5788 | int (*job_step) (struct ipr_cmnd *), |
| 5789 | enum ipr_shutdown_type shutdown_type) |
| 5790 | { |
| 5791 | struct ipr_cmnd *ipr_cmd; |
| 5792 | |
| 5793 | ioa_cfg->in_reset_reload = 1; |
| 5794 | ioa_cfg->allow_cmds = 0; |
| 5795 | scsi_block_requests(ioa_cfg->host); |
| 5796 | |
| 5797 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
| 5798 | ioa_cfg->reset_cmd = ipr_cmd; |
| 5799 | ipr_cmd->job_step = job_step; |
| 5800 | ipr_cmd->u.shutdown_type = shutdown_type; |
| 5801 | |
| 5802 | ipr_reset_ioa_job(ipr_cmd); |
| 5803 | } |
| 5804 | |
| 5805 | /** |
| 5806 | * ipr_initiate_ioa_reset - Initiate an adapter reset |
| 5807 | * @ioa_cfg: ioa config struct |
| 5808 | * @shutdown_type: shutdown type |
| 5809 | * |
| 5810 | * Description: This function will initiate the reset of the given adapter. |
| 5811 | * If the caller needs to wait on the completion of the reset, |
| 5812 | * the caller must sleep on the reset_wait_q. |
| 5813 | * |
| 5814 | * Return value: |
| 5815 | * none |
| 5816 | **/ |
| 5817 | static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, |
| 5818 | enum ipr_shutdown_type shutdown_type) |
| 5819 | { |
| 5820 | if (ioa_cfg->ioa_is_dead) |
| 5821 | return; |
| 5822 | |
| 5823 | if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP) |
| 5824 | ioa_cfg->sdt_state = ABORT_DUMP; |
| 5825 | |
| 5826 | if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { |
| 5827 | dev_err(&ioa_cfg->pdev->dev, |
| 5828 | "IOA taken offline - error recovery failed\n"); |
| 5829 | |
| 5830 | ioa_cfg->reset_retries = 0; |
| 5831 | ioa_cfg->ioa_is_dead = 1; |
| 5832 | |
| 5833 | if (ioa_cfg->in_ioa_bringdown) { |
| 5834 | ioa_cfg->reset_cmd = NULL; |
| 5835 | ioa_cfg->in_reset_reload = 0; |
| 5836 | ipr_fail_all_ops(ioa_cfg); |
| 5837 | wake_up_all(&ioa_cfg->reset_wait_q); |
| 5838 | |
| 5839 | spin_unlock_irq(ioa_cfg->host->host_lock); |
| 5840 | scsi_unblock_requests(ioa_cfg->host); |
| 5841 | spin_lock_irq(ioa_cfg->host->host_lock); |
| 5842 | return; |
| 5843 | } else { |
| 5844 | ioa_cfg->in_ioa_bringdown = 1; |
| 5845 | shutdown_type = IPR_SHUTDOWN_NONE; |
| 5846 | } |
| 5847 | } |
| 5848 | |
| 5849 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa, |
| 5850 | shutdown_type); |
| 5851 | } |
| 5852 | |
| 5853 | /** |
Linas Vepstas | f8a88b19 | 2006-02-03 16:52:42 -0600 | [diff] [blame] | 5854 | * ipr_reset_freeze - Hold off all I/O activity |
| 5855 | * @ipr_cmd: ipr command struct |
| 5856 | * |
| 5857 | * Description: If the PCI slot is frozen, hold off all I/O |
| 5858 | * activity; then, as soon as the slot is available again, |
| 5859 | * initiate an adapter reset. |
| 5860 | */ |
| 5861 | static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) |
| 5862 | { |
| 5863 | /* Disallow new interrupts, avoid loop */ |
| 5864 | ipr_cmd->ioa_cfg->allow_interrupts = 0; |
| 5865 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); |
| 5866 | ipr_cmd->done = ipr_reset_ioa_job; |
| 5867 | return IPR_RC_JOB_RETURN; |
| 5868 | } |
| 5869 | |
| 5870 | /** |
| 5871 | * ipr_pci_frozen - Called when slot has experienced a PCI bus error. |
| 5872 | * @pdev: PCI device struct |
| 5873 | * |
| 5874 | * Description: This routine is called to tell us that the PCI bus |
| 5875 | * is down. Can't do anything here, except put the device driver |
| 5876 | * into a holding pattern, waiting for the PCI bus to come back. |
| 5877 | */ |
| 5878 | static void ipr_pci_frozen(struct pci_dev *pdev) |
| 5879 | { |
| 5880 | unsigned long flags = 0; |
| 5881 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
| 5882 | |
| 5883 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); |
| 5884 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE); |
| 5885 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); |
| 5886 | } |
| 5887 | |
| 5888 | /** |
| 5889 | * ipr_pci_slot_reset - Called when PCI slot has been reset. |
| 5890 | * @pdev: PCI device struct |
| 5891 | * |
| 5892 | * Description: This routine is called by the pci error recovery |
| 5893 | * code after the PCI slot has been reset, just before we |
| 5894 | * should resume normal operations. |
| 5895 | */ |
| 5896 | static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) |
| 5897 | { |
| 5898 | unsigned long flags = 0; |
| 5899 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
| 5900 | |
| 5901 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); |
| 5902 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space, |
| 5903 | IPR_SHUTDOWN_NONE); |
| 5904 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); |
| 5905 | return PCI_ERS_RESULT_RECOVERED; |
| 5906 | } |
| 5907 | |
| 5908 | /** |
| 5909 | * ipr_pci_perm_failure - Called when PCI slot is dead for good. |
| 5910 | * @pdev: PCI device struct |
| 5911 | * |
| 5912 | * Description: This routine is called when the PCI bus has |
| 5913 | * permanently failed. |
| 5914 | */ |
| 5915 | static void ipr_pci_perm_failure(struct pci_dev *pdev) |
| 5916 | { |
| 5917 | unsigned long flags = 0; |
| 5918 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
| 5919 | |
| 5920 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); |
| 5921 | if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) |
| 5922 | ioa_cfg->sdt_state = ABORT_DUMP; |
| 5923 | ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES; |
| 5924 | ioa_cfg->in_ioa_bringdown = 1; |
| 5925 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
| 5926 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); |
| 5927 | } |
| 5928 | |
| 5929 | /** |
| 5930 | * ipr_pci_error_detected - Called when a PCI error is detected. |
| 5931 | * @pdev: PCI device struct |
| 5932 | * @state: PCI channel state |
| 5933 | * |
| 5934 | * Description: Called when a PCI error is detected. |
| 5935 | * |
| 5936 | * Return value: |
| 5937 | * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT |
| 5938 | */ |
| 5939 | static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, |
| 5940 | pci_channel_state_t state) |
| 5941 | { |
| 5942 | switch (state) { |
| 5943 | case pci_channel_io_frozen: |
| 5944 | ipr_pci_frozen(pdev); |
| 5945 | return PCI_ERS_RESULT_NEED_RESET; |
| 5946 | case pci_channel_io_perm_failure: |
| 5947 | ipr_pci_perm_failure(pdev); |
| 5948 | return PCI_ERS_RESULT_DISCONNECT; |
| 5949 | break; |
| 5950 | default: |
| 5951 | break; |
| 5952 | } |
| 5953 | return PCI_ERS_RESULT_NEED_RESET; |
| 5954 | } |
| 5955 | |
| 5956 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5957 | * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) |
| 5958 | * @ioa_cfg: ioa cfg struct |
| 5959 | * |
| 5960 | * Description: This is the second phase of adapter intialization |
| 5961 | * This function takes care of initilizing the adapter to the point |
| 5962 | * where it can accept new commands. |
| 5963 | |
| 5964 | * Return value: |
| 5965 | * 0 on sucess / -EIO on failure |
| 5966 | **/ |
| 5967 | static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) |
| 5968 | { |
| 5969 | int rc = 0; |
| 5970 | unsigned long host_lock_flags = 0; |
| 5971 | |
| 5972 | ENTER; |
| 5973 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); |
| 5974 | dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg); |
brking@us.ibm.com | ce155cc | 2005-11-17 09:35:12 -0600 | [diff] [blame] | 5975 | if (ioa_cfg->needs_hard_reset) { |
| 5976 | ioa_cfg->needs_hard_reset = 0; |
| 5977 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
| 5978 | } else |
| 5979 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, |
| 5980 | IPR_SHUTDOWN_NONE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5981 | |
| 5982 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); |
| 5983 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
| 5984 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); |
| 5985 | |
| 5986 | if (ioa_cfg->ioa_is_dead) { |
| 5987 | rc = -EIO; |
| 5988 | } else if (ipr_invalid_adapter(ioa_cfg)) { |
| 5989 | if (!ipr_testmode) |
| 5990 | rc = -EIO; |
| 5991 | |
| 5992 | dev_err(&ioa_cfg->pdev->dev, |
| 5993 | "Adapter not supported in this hardware configuration.\n"); |
| 5994 | } |
| 5995 | |
| 5996 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); |
| 5997 | |
| 5998 | LEAVE; |
| 5999 | return rc; |
| 6000 | } |
| 6001 | |
| 6002 | /** |
| 6003 | * ipr_free_cmd_blks - Frees command blocks allocated for an adapter |
| 6004 | * @ioa_cfg: ioa config struct |
| 6005 | * |
| 6006 | * Return value: |
| 6007 | * none |
| 6008 | **/ |
| 6009 | static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) |
| 6010 | { |
| 6011 | int i; |
| 6012 | |
| 6013 | for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { |
| 6014 | if (ioa_cfg->ipr_cmnd_list[i]) |
| 6015 | pci_pool_free(ioa_cfg->ipr_cmd_pool, |
| 6016 | ioa_cfg->ipr_cmnd_list[i], |
| 6017 | ioa_cfg->ipr_cmnd_list_dma[i]); |
| 6018 | |
| 6019 | ioa_cfg->ipr_cmnd_list[i] = NULL; |
| 6020 | } |
| 6021 | |
| 6022 | if (ioa_cfg->ipr_cmd_pool) |
| 6023 | pci_pool_destroy (ioa_cfg->ipr_cmd_pool); |
| 6024 | |
| 6025 | ioa_cfg->ipr_cmd_pool = NULL; |
| 6026 | } |
| 6027 | |
| 6028 | /** |
| 6029 | * ipr_free_mem - Frees memory allocated for an adapter |
| 6030 | * @ioa_cfg: ioa cfg struct |
| 6031 | * |
| 6032 | * Return value: |
| 6033 | * nothing |
| 6034 | **/ |
| 6035 | static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) |
| 6036 | { |
| 6037 | int i; |
| 6038 | |
| 6039 | kfree(ioa_cfg->res_entries); |
| 6040 | pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs), |
| 6041 | ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); |
| 6042 | ipr_free_cmd_blks(ioa_cfg); |
| 6043 | pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, |
| 6044 | ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); |
| 6045 | pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_config_table), |
| 6046 | ioa_cfg->cfg_table, |
| 6047 | ioa_cfg->cfg_table_dma); |
| 6048 | |
| 6049 | for (i = 0; i < IPR_NUM_HCAMS; i++) { |
| 6050 | pci_free_consistent(ioa_cfg->pdev, |
| 6051 | sizeof(struct ipr_hostrcb), |
| 6052 | ioa_cfg->hostrcb[i], |
| 6053 | ioa_cfg->hostrcb_dma[i]); |
| 6054 | } |
| 6055 | |
| 6056 | ipr_free_dump(ioa_cfg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6057 | kfree(ioa_cfg->trace); |
| 6058 | } |
| 6059 | |
| 6060 | /** |
| 6061 | * ipr_free_all_resources - Free all allocated resources for an adapter. |
| 6062 | * @ipr_cmd: ipr command struct |
| 6063 | * |
| 6064 | * This function frees all allocated resources for the |
| 6065 | * specified adapter. |
| 6066 | * |
| 6067 | * Return value: |
| 6068 | * none |
| 6069 | **/ |
| 6070 | static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) |
| 6071 | { |
| 6072 | struct pci_dev *pdev = ioa_cfg->pdev; |
| 6073 | |
| 6074 | ENTER; |
| 6075 | free_irq(pdev->irq, ioa_cfg); |
| 6076 | iounmap(ioa_cfg->hdw_dma_regs); |
| 6077 | pci_release_regions(pdev); |
| 6078 | ipr_free_mem(ioa_cfg); |
| 6079 | scsi_host_put(ioa_cfg->host); |
| 6080 | pci_disable_device(pdev); |
| 6081 | LEAVE; |
| 6082 | } |
| 6083 | |
| 6084 | /** |
| 6085 | * ipr_alloc_cmd_blks - Allocate command blocks for an adapter |
| 6086 | * @ioa_cfg: ioa config struct |
| 6087 | * |
| 6088 | * Return value: |
| 6089 | * 0 on success / -ENOMEM on allocation failure |
| 6090 | **/ |
| 6091 | static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) |
| 6092 | { |
| 6093 | struct ipr_cmnd *ipr_cmd; |
| 6094 | struct ipr_ioarcb *ioarcb; |
| 6095 | dma_addr_t dma_addr; |
| 6096 | int i; |
| 6097 | |
| 6098 | ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev, |
| 6099 | sizeof(struct ipr_cmnd), 8, 0); |
| 6100 | |
| 6101 | if (!ioa_cfg->ipr_cmd_pool) |
| 6102 | return -ENOMEM; |
| 6103 | |
| 6104 | for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { |
| 6105 | ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, SLAB_KERNEL, &dma_addr); |
| 6106 | |
| 6107 | if (!ipr_cmd) { |
| 6108 | ipr_free_cmd_blks(ioa_cfg); |
| 6109 | return -ENOMEM; |
| 6110 | } |
| 6111 | |
| 6112 | memset(ipr_cmd, 0, sizeof(*ipr_cmd)); |
| 6113 | ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; |
| 6114 | ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; |
| 6115 | |
| 6116 | ioarcb = &ipr_cmd->ioarcb; |
| 6117 | ioarcb->ioarcb_host_pci_addr = cpu_to_be32(dma_addr); |
| 6118 | ioarcb->host_response_handle = cpu_to_be32(i << 2); |
| 6119 | ioarcb->write_ioadl_addr = |
| 6120 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl)); |
| 6121 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; |
| 6122 | ioarcb->ioasa_host_pci_addr = |
| 6123 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa)); |
| 6124 | ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); |
| 6125 | ipr_cmd->cmd_index = i; |
| 6126 | ipr_cmd->ioa_cfg = ioa_cfg; |
| 6127 | ipr_cmd->sense_buffer_dma = dma_addr + |
| 6128 | offsetof(struct ipr_cmnd, sense_buffer); |
| 6129 | |
| 6130 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); |
| 6131 | } |
| 6132 | |
| 6133 | return 0; |
| 6134 | } |
| 6135 | |
| 6136 | /** |
| 6137 | * ipr_alloc_mem - Allocate memory for an adapter |
| 6138 | * @ioa_cfg: ioa config struct |
| 6139 | * |
| 6140 | * Return value: |
| 6141 | * 0 on success / non-zero for error |
| 6142 | **/ |
| 6143 | static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) |
| 6144 | { |
| 6145 | struct pci_dev *pdev = ioa_cfg->pdev; |
| 6146 | int i, rc = -ENOMEM; |
| 6147 | |
| 6148 | ENTER; |
brking@us.ibm.com | 0bc42e3 | 2005-11-01 17:01:20 -0600 | [diff] [blame] | 6149 | ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6150 | IPR_MAX_PHYSICAL_DEVS, GFP_KERNEL); |
| 6151 | |
| 6152 | if (!ioa_cfg->res_entries) |
| 6153 | goto out; |
| 6154 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6155 | for (i = 0; i < IPR_MAX_PHYSICAL_DEVS; i++) |
| 6156 | list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); |
| 6157 | |
| 6158 | ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev, |
| 6159 | sizeof(struct ipr_misc_cbs), |
| 6160 | &ioa_cfg->vpd_cbs_dma); |
| 6161 | |
| 6162 | if (!ioa_cfg->vpd_cbs) |
| 6163 | goto out_free_res_entries; |
| 6164 | |
| 6165 | if (ipr_alloc_cmd_blks(ioa_cfg)) |
| 6166 | goto out_free_vpd_cbs; |
| 6167 | |
| 6168 | ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev, |
| 6169 | sizeof(u32) * IPR_NUM_CMD_BLKS, |
| 6170 | &ioa_cfg->host_rrq_dma); |
| 6171 | |
| 6172 | if (!ioa_cfg->host_rrq) |
| 6173 | goto out_ipr_free_cmd_blocks; |
| 6174 | |
| 6175 | ioa_cfg->cfg_table = pci_alloc_consistent(ioa_cfg->pdev, |
| 6176 | sizeof(struct ipr_config_table), |
| 6177 | &ioa_cfg->cfg_table_dma); |
| 6178 | |
| 6179 | if (!ioa_cfg->cfg_table) |
| 6180 | goto out_free_host_rrq; |
| 6181 | |
| 6182 | for (i = 0; i < IPR_NUM_HCAMS; i++) { |
| 6183 | ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev, |
| 6184 | sizeof(struct ipr_hostrcb), |
| 6185 | &ioa_cfg->hostrcb_dma[i]); |
| 6186 | |
| 6187 | if (!ioa_cfg->hostrcb[i]) |
| 6188 | goto out_free_hostrcb_dma; |
| 6189 | |
| 6190 | ioa_cfg->hostrcb[i]->hostrcb_dma = |
| 6191 | ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); |
| 6192 | list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q); |
| 6193 | } |
| 6194 | |
brking@us.ibm.com | 0bc42e3 | 2005-11-01 17:01:20 -0600 | [diff] [blame] | 6195 | ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6196 | IPR_NUM_TRACE_ENTRIES, GFP_KERNEL); |
| 6197 | |
| 6198 | if (!ioa_cfg->trace) |
| 6199 | goto out_free_hostrcb_dma; |
| 6200 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6201 | rc = 0; |
| 6202 | out: |
| 6203 | LEAVE; |
| 6204 | return rc; |
| 6205 | |
| 6206 | out_free_hostrcb_dma: |
| 6207 | while (i-- > 0) { |
| 6208 | pci_free_consistent(pdev, sizeof(struct ipr_hostrcb), |
| 6209 | ioa_cfg->hostrcb[i], |
| 6210 | ioa_cfg->hostrcb_dma[i]); |
| 6211 | } |
| 6212 | pci_free_consistent(pdev, sizeof(struct ipr_config_table), |
| 6213 | ioa_cfg->cfg_table, ioa_cfg->cfg_table_dma); |
| 6214 | out_free_host_rrq: |
| 6215 | pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, |
| 6216 | ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); |
| 6217 | out_ipr_free_cmd_blocks: |
| 6218 | ipr_free_cmd_blks(ioa_cfg); |
| 6219 | out_free_vpd_cbs: |
| 6220 | pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs), |
| 6221 | ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); |
| 6222 | out_free_res_entries: |
| 6223 | kfree(ioa_cfg->res_entries); |
| 6224 | goto out; |
| 6225 | } |
| 6226 | |
| 6227 | /** |
| 6228 | * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values |
| 6229 | * @ioa_cfg: ioa config struct |
| 6230 | * |
| 6231 | * Return value: |
| 6232 | * none |
| 6233 | **/ |
| 6234 | static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) |
| 6235 | { |
| 6236 | int i; |
| 6237 | |
| 6238 | for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { |
| 6239 | ioa_cfg->bus_attr[i].bus = i; |
| 6240 | ioa_cfg->bus_attr[i].qas_enabled = 0; |
| 6241 | ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; |
| 6242 | if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) |
| 6243 | ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; |
| 6244 | else |
| 6245 | ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; |
| 6246 | } |
| 6247 | } |
| 6248 | |
| 6249 | /** |
| 6250 | * ipr_init_ioa_cfg - Initialize IOA config struct |
| 6251 | * @ioa_cfg: ioa config struct |
| 6252 | * @host: scsi host struct |
| 6253 | * @pdev: PCI dev struct |
| 6254 | * |
| 6255 | * Return value: |
| 6256 | * none |
| 6257 | **/ |
| 6258 | static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, |
| 6259 | struct Scsi_Host *host, struct pci_dev *pdev) |
| 6260 | { |
| 6261 | const struct ipr_interrupt_offsets *p; |
| 6262 | struct ipr_interrupts *t; |
| 6263 | void __iomem *base; |
| 6264 | |
| 6265 | ioa_cfg->host = host; |
| 6266 | ioa_cfg->pdev = pdev; |
| 6267 | ioa_cfg->log_level = ipr_log_level; |
brking@us.ibm.com | 3d1d0da | 2005-11-01 17:01:54 -0600 | [diff] [blame] | 6268 | ioa_cfg->doorbell = IPR_DOORBELL; |
brking@us.ibm.com | 32d2977 | 2005-11-01 17:02:01 -0600 | [diff] [blame] | 6269 | if (!ipr_auto_create) |
| 6270 | ioa_cfg->doorbell |= IPR_RUNTIME_RESET; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6271 | sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER); |
| 6272 | sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL); |
| 6273 | sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL); |
| 6274 | sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL); |
| 6275 | sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); |
| 6276 | sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); |
| 6277 | sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); |
| 6278 | sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); |
| 6279 | |
| 6280 | INIT_LIST_HEAD(&ioa_cfg->free_q); |
| 6281 | INIT_LIST_HEAD(&ioa_cfg->pending_q); |
| 6282 | INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q); |
| 6283 | INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q); |
| 6284 | INIT_LIST_HEAD(&ioa_cfg->free_res_q); |
| 6285 | INIT_LIST_HEAD(&ioa_cfg->used_res_q); |
| 6286 | INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread, ioa_cfg); |
| 6287 | init_waitqueue_head(&ioa_cfg->reset_wait_q); |
| 6288 | ioa_cfg->sdt_state = INACTIVE; |
brking@us.ibm.com | 6227504 | 2005-11-01 17:01:14 -0600 | [diff] [blame] | 6289 | if (ipr_enable_cache) |
| 6290 | ioa_cfg->cache_state = CACHE_ENABLED; |
| 6291 | else |
| 6292 | ioa_cfg->cache_state = CACHE_DISABLED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6293 | |
| 6294 | ipr_initialize_bus_attr(ioa_cfg); |
| 6295 | |
| 6296 | host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; |
| 6297 | host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; |
| 6298 | host->max_channel = IPR_MAX_BUS_TO_SCAN; |
| 6299 | host->unique_id = host->host_no; |
| 6300 | host->max_cmd_len = IPR_MAX_CDB_LEN; |
| 6301 | pci_set_drvdata(pdev, ioa_cfg); |
| 6302 | |
| 6303 | p = &ioa_cfg->chip_cfg->regs; |
| 6304 | t = &ioa_cfg->regs; |
| 6305 | base = ioa_cfg->hdw_dma_regs; |
| 6306 | |
| 6307 | t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; |
| 6308 | t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; |
| 6309 | t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; |
| 6310 | t->clr_interrupt_reg = base + p->clr_interrupt_reg; |
| 6311 | t->sense_interrupt_reg = base + p->sense_interrupt_reg; |
| 6312 | t->ioarrin_reg = base + p->ioarrin_reg; |
| 6313 | t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; |
| 6314 | t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; |
| 6315 | t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; |
| 6316 | } |
| 6317 | |
| 6318 | /** |
| 6319 | * ipr_get_chip_cfg - Find adapter chip configuration |
| 6320 | * @dev_id: PCI device id struct |
| 6321 | * |
| 6322 | * Return value: |
| 6323 | * ptr to chip config on success / NULL on failure |
| 6324 | **/ |
| 6325 | static const struct ipr_chip_cfg_t * __devinit |
| 6326 | ipr_get_chip_cfg(const struct pci_device_id *dev_id) |
| 6327 | { |
| 6328 | int i; |
| 6329 | |
| 6330 | if (dev_id->driver_data) |
| 6331 | return (const struct ipr_chip_cfg_t *)dev_id->driver_data; |
| 6332 | |
| 6333 | for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) |
| 6334 | if (ipr_chip[i].vendor == dev_id->vendor && |
| 6335 | ipr_chip[i].device == dev_id->device) |
| 6336 | return ipr_chip[i].cfg; |
| 6337 | return NULL; |
| 6338 | } |
| 6339 | |
| 6340 | /** |
| 6341 | * ipr_probe_ioa - Allocates memory and does first stage of initialization |
| 6342 | * @pdev: PCI device struct |
| 6343 | * @dev_id: PCI device id struct |
| 6344 | * |
| 6345 | * Return value: |
| 6346 | * 0 on success / non-zero on failure |
| 6347 | **/ |
| 6348 | static int __devinit ipr_probe_ioa(struct pci_dev *pdev, |
| 6349 | const struct pci_device_id *dev_id) |
| 6350 | { |
| 6351 | struct ipr_ioa_cfg *ioa_cfg; |
| 6352 | struct Scsi_Host *host; |
| 6353 | unsigned long ipr_regs_pci; |
| 6354 | void __iomem *ipr_regs; |
| 6355 | u32 rc = PCIBIOS_SUCCESSFUL; |
brking@us.ibm.com | ce155cc | 2005-11-17 09:35:12 -0600 | [diff] [blame] | 6356 | volatile u32 mask, uproc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6357 | |
| 6358 | ENTER; |
| 6359 | |
| 6360 | if ((rc = pci_enable_device(pdev))) { |
| 6361 | dev_err(&pdev->dev, "Cannot enable adapter\n"); |
| 6362 | goto out; |
| 6363 | } |
| 6364 | |
| 6365 | dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq); |
| 6366 | |
| 6367 | host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); |
| 6368 | |
| 6369 | if (!host) { |
| 6370 | dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n"); |
| 6371 | rc = -ENOMEM; |
| 6372 | goto out_disable; |
| 6373 | } |
| 6374 | |
| 6375 | ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; |
| 6376 | memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); |
| 6377 | |
| 6378 | ioa_cfg->chip_cfg = ipr_get_chip_cfg(dev_id); |
| 6379 | |
| 6380 | if (!ioa_cfg->chip_cfg) { |
| 6381 | dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n", |
| 6382 | dev_id->vendor, dev_id->device); |
| 6383 | goto out_scsi_host_put; |
| 6384 | } |
| 6385 | |
| 6386 | ipr_regs_pci = pci_resource_start(pdev, 0); |
| 6387 | |
| 6388 | rc = pci_request_regions(pdev, IPR_NAME); |
| 6389 | if (rc < 0) { |
| 6390 | dev_err(&pdev->dev, |
| 6391 | "Couldn't register memory range of registers\n"); |
| 6392 | goto out_scsi_host_put; |
| 6393 | } |
| 6394 | |
| 6395 | ipr_regs = ioremap(ipr_regs_pci, pci_resource_len(pdev, 0)); |
| 6396 | |
| 6397 | if (!ipr_regs) { |
| 6398 | dev_err(&pdev->dev, |
| 6399 | "Couldn't map memory range of registers\n"); |
| 6400 | rc = -ENOMEM; |
| 6401 | goto out_release_regions; |
| 6402 | } |
| 6403 | |
| 6404 | ioa_cfg->hdw_dma_regs = ipr_regs; |
| 6405 | ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; |
| 6406 | ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; |
| 6407 | |
| 6408 | ipr_init_ioa_cfg(ioa_cfg, host, pdev); |
| 6409 | |
| 6410 | pci_set_master(pdev); |
| 6411 | |
| 6412 | rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); |
| 6413 | if (rc < 0) { |
| 6414 | dev_err(&pdev->dev, "Failed to set PCI DMA mask\n"); |
| 6415 | goto cleanup_nomem; |
| 6416 | } |
| 6417 | |
| 6418 | rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, |
| 6419 | ioa_cfg->chip_cfg->cache_line_size); |
| 6420 | |
| 6421 | if (rc != PCIBIOS_SUCCESSFUL) { |
| 6422 | dev_err(&pdev->dev, "Write of cache line size failed\n"); |
| 6423 | rc = -EIO; |
| 6424 | goto cleanup_nomem; |
| 6425 | } |
| 6426 | |
| 6427 | /* Save away PCI config space for use following IOA reset */ |
| 6428 | rc = pci_save_state(pdev); |
| 6429 | |
| 6430 | if (rc != PCIBIOS_SUCCESSFUL) { |
| 6431 | dev_err(&pdev->dev, "Failed to save PCI config space\n"); |
| 6432 | rc = -EIO; |
| 6433 | goto cleanup_nomem; |
| 6434 | } |
| 6435 | |
| 6436 | if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) |
| 6437 | goto cleanup_nomem; |
| 6438 | |
| 6439 | if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) |
| 6440 | goto cleanup_nomem; |
| 6441 | |
| 6442 | rc = ipr_alloc_mem(ioa_cfg); |
| 6443 | if (rc < 0) { |
| 6444 | dev_err(&pdev->dev, |
| 6445 | "Couldn't allocate enough memory for device driver!\n"); |
| 6446 | goto cleanup_nomem; |
| 6447 | } |
| 6448 | |
brking@us.ibm.com | ce155cc | 2005-11-17 09:35:12 -0600 | [diff] [blame] | 6449 | /* |
| 6450 | * If HRRQ updated interrupt is not masked, or reset alert is set, |
| 6451 | * the card is in an unknown state and needs a hard reset |
| 6452 | */ |
| 6453 | mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg); |
| 6454 | uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg); |
| 6455 | if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) |
| 6456 | ioa_cfg->needs_hard_reset = 1; |
| 6457 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6458 | ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); |
Thomas Gleixner | 1d6f359 | 2006-07-01 19:29:42 -0700 | [diff] [blame] | 6459 | rc = request_irq(pdev->irq, ipr_isr, IRQF_SHARED, IPR_NAME, ioa_cfg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6460 | |
| 6461 | if (rc) { |
| 6462 | dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n", |
| 6463 | pdev->irq, rc); |
| 6464 | goto cleanup_nolog; |
| 6465 | } |
| 6466 | |
| 6467 | spin_lock(&ipr_driver_lock); |
| 6468 | list_add_tail(&ioa_cfg->queue, &ipr_ioa_head); |
| 6469 | spin_unlock(&ipr_driver_lock); |
| 6470 | |
| 6471 | LEAVE; |
| 6472 | out: |
| 6473 | return rc; |
| 6474 | |
| 6475 | cleanup_nolog: |
| 6476 | ipr_free_mem(ioa_cfg); |
| 6477 | cleanup_nomem: |
| 6478 | iounmap(ipr_regs); |
| 6479 | out_release_regions: |
| 6480 | pci_release_regions(pdev); |
| 6481 | out_scsi_host_put: |
| 6482 | scsi_host_put(host); |
| 6483 | out_disable: |
| 6484 | pci_disable_device(pdev); |
| 6485 | goto out; |
| 6486 | } |
| 6487 | |
| 6488 | /** |
| 6489 | * ipr_scan_vsets - Scans for VSET devices |
| 6490 | * @ioa_cfg: ioa config struct |
| 6491 | * |
| 6492 | * Description: Since the VSET resources do not follow SAM in that we can have |
| 6493 | * sparse LUNs with no LUN 0, we have to scan for these ourselves. |
| 6494 | * |
| 6495 | * Return value: |
| 6496 | * none |
| 6497 | **/ |
| 6498 | static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg) |
| 6499 | { |
| 6500 | int target, lun; |
| 6501 | |
| 6502 | for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++) |
| 6503 | for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ ) |
| 6504 | scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun); |
| 6505 | } |
| 6506 | |
| 6507 | /** |
| 6508 | * ipr_initiate_ioa_bringdown - Bring down an adapter |
| 6509 | * @ioa_cfg: ioa config struct |
| 6510 | * @shutdown_type: shutdown type |
| 6511 | * |
| 6512 | * Description: This function will initiate bringing down the adapter. |
| 6513 | * This consists of issuing an IOA shutdown to the adapter |
| 6514 | * to flush the cache, and running BIST. |
| 6515 | * If the caller needs to wait on the completion of the reset, |
| 6516 | * the caller must sleep on the reset_wait_q. |
| 6517 | * |
| 6518 | * Return value: |
| 6519 | * none |
| 6520 | **/ |
| 6521 | static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, |
| 6522 | enum ipr_shutdown_type shutdown_type) |
| 6523 | { |
| 6524 | ENTER; |
| 6525 | if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) |
| 6526 | ioa_cfg->sdt_state = ABORT_DUMP; |
| 6527 | ioa_cfg->reset_retries = 0; |
| 6528 | ioa_cfg->in_ioa_bringdown = 1; |
| 6529 | ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); |
| 6530 | LEAVE; |
| 6531 | } |
| 6532 | |
| 6533 | /** |
| 6534 | * __ipr_remove - Remove a single adapter |
| 6535 | * @pdev: pci device struct |
| 6536 | * |
| 6537 | * Adapter hot plug remove entry point. |
| 6538 | * |
| 6539 | * Return value: |
| 6540 | * none |
| 6541 | **/ |
| 6542 | static void __ipr_remove(struct pci_dev *pdev) |
| 6543 | { |
| 6544 | unsigned long host_lock_flags = 0; |
| 6545 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
| 6546 | ENTER; |
| 6547 | |
| 6548 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); |
| 6549 | ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); |
| 6550 | |
| 6551 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); |
| 6552 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
brking@us.ibm.com | 5cbf5ea | 2005-05-02 19:50:47 -0500 | [diff] [blame] | 6553 | flush_scheduled_work(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6554 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); |
| 6555 | |
| 6556 | spin_lock(&ipr_driver_lock); |
| 6557 | list_del(&ioa_cfg->queue); |
| 6558 | spin_unlock(&ipr_driver_lock); |
| 6559 | |
| 6560 | if (ioa_cfg->sdt_state == ABORT_DUMP) |
| 6561 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; |
| 6562 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); |
| 6563 | |
| 6564 | ipr_free_all_resources(ioa_cfg); |
| 6565 | |
| 6566 | LEAVE; |
| 6567 | } |
| 6568 | |
| 6569 | /** |
| 6570 | * ipr_remove - IOA hot plug remove entry point |
| 6571 | * @pdev: pci device struct |
| 6572 | * |
| 6573 | * Adapter hot plug remove entry point. |
| 6574 | * |
| 6575 | * Return value: |
| 6576 | * none |
| 6577 | **/ |
| 6578 | static void ipr_remove(struct pci_dev *pdev) |
| 6579 | { |
| 6580 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
| 6581 | |
| 6582 | ENTER; |
| 6583 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6584 | ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj, |
| 6585 | &ipr_trace_attr); |
| 6586 | ipr_remove_dump_file(&ioa_cfg->host->shost_classdev.kobj, |
| 6587 | &ipr_dump_attr); |
| 6588 | scsi_remove_host(ioa_cfg->host); |
| 6589 | |
| 6590 | __ipr_remove(pdev); |
| 6591 | |
| 6592 | LEAVE; |
| 6593 | } |
| 6594 | |
| 6595 | /** |
| 6596 | * ipr_probe - Adapter hot plug add entry point |
| 6597 | * |
| 6598 | * Return value: |
| 6599 | * 0 on success / non-zero on failure |
| 6600 | **/ |
| 6601 | static int __devinit ipr_probe(struct pci_dev *pdev, |
| 6602 | const struct pci_device_id *dev_id) |
| 6603 | { |
| 6604 | struct ipr_ioa_cfg *ioa_cfg; |
| 6605 | int rc; |
| 6606 | |
| 6607 | rc = ipr_probe_ioa(pdev, dev_id); |
| 6608 | |
| 6609 | if (rc) |
| 6610 | return rc; |
| 6611 | |
| 6612 | ioa_cfg = pci_get_drvdata(pdev); |
| 6613 | rc = ipr_probe_ioa_part2(ioa_cfg); |
| 6614 | |
| 6615 | if (rc) { |
| 6616 | __ipr_remove(pdev); |
| 6617 | return rc; |
| 6618 | } |
| 6619 | |
| 6620 | rc = scsi_add_host(ioa_cfg->host, &pdev->dev); |
| 6621 | |
| 6622 | if (rc) { |
| 6623 | __ipr_remove(pdev); |
| 6624 | return rc; |
| 6625 | } |
| 6626 | |
| 6627 | rc = ipr_create_trace_file(&ioa_cfg->host->shost_classdev.kobj, |
| 6628 | &ipr_trace_attr); |
| 6629 | |
| 6630 | if (rc) { |
| 6631 | scsi_remove_host(ioa_cfg->host); |
| 6632 | __ipr_remove(pdev); |
| 6633 | return rc; |
| 6634 | } |
| 6635 | |
| 6636 | rc = ipr_create_dump_file(&ioa_cfg->host->shost_classdev.kobj, |
| 6637 | &ipr_dump_attr); |
| 6638 | |
| 6639 | if (rc) { |
| 6640 | ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj, |
| 6641 | &ipr_trace_attr); |
| 6642 | scsi_remove_host(ioa_cfg->host); |
| 6643 | __ipr_remove(pdev); |
| 6644 | return rc; |
| 6645 | } |
| 6646 | |
| 6647 | scsi_scan_host(ioa_cfg->host); |
| 6648 | ipr_scan_vsets(ioa_cfg); |
| 6649 | scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN); |
| 6650 | ioa_cfg->allow_ml_add_del = 1; |
brking@us.ibm.com | 11cd8f1 | 2005-11-01 17:00:11 -0600 | [diff] [blame] | 6651 | ioa_cfg->host->max_channel = IPR_VSET_BUS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6652 | schedule_work(&ioa_cfg->work_q); |
| 6653 | return 0; |
| 6654 | } |
| 6655 | |
| 6656 | /** |
| 6657 | * ipr_shutdown - Shutdown handler. |
Greg Kroah-Hartman | d18c3db | 2005-06-23 17:35:56 -0700 | [diff] [blame] | 6658 | * @pdev: pci device struct |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6659 | * |
| 6660 | * This function is invoked upon system shutdown/reboot. It will issue |
| 6661 | * an adapter shutdown to the adapter to flush the write cache. |
| 6662 | * |
| 6663 | * Return value: |
| 6664 | * none |
| 6665 | **/ |
Greg Kroah-Hartman | d18c3db | 2005-06-23 17:35:56 -0700 | [diff] [blame] | 6666 | static void ipr_shutdown(struct pci_dev *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6667 | { |
Greg Kroah-Hartman | d18c3db | 2005-06-23 17:35:56 -0700 | [diff] [blame] | 6668 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6669 | unsigned long lock_flags = 0; |
| 6670 | |
| 6671 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 6672 | ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); |
| 6673 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 6674 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
| 6675 | } |
| 6676 | |
| 6677 | static struct pci_device_id ipr_pci_table[] __devinitdata = { |
| 6678 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
| 6679 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, |
| 6680 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, |
| 6681 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
| 6682 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, |
| 6683 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, |
| 6684 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
| 6685 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, |
| 6686 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, |
| 6687 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
| 6688 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, |
| 6689 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, |
| 6690 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
| 6691 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, |
| 6692 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, |
| 6693 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
| 6694 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, |
| 6695 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, |
| 6696 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
| 6697 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, |
| 6698 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, |
brking@us.ibm.com | 86f5143 | 2005-11-01 17:02:42 -0600 | [diff] [blame] | 6699 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
| 6700 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, |
| 6701 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, |
| 6702 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, |
| 6703 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, |
| 6704 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, |
| 6705 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, |
| 6706 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, |
| 6707 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, |
| 6708 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, |
| 6709 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, |
| 6710 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, |
| 6711 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, |
| 6712 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, |
| 6713 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6714 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, |
| 6715 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, |
| 6716 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] }, |
| 6717 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
| 6718 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, |
| 6719 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] }, |
brking@us.ibm.com | 86f5143 | 2005-11-01 17:02:42 -0600 | [diff] [blame] | 6720 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
| 6721 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, |
| 6722 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6723 | { } |
| 6724 | }; |
| 6725 | MODULE_DEVICE_TABLE(pci, ipr_pci_table); |
| 6726 | |
Linas Vepstas | f8a88b19 | 2006-02-03 16:52:42 -0600 | [diff] [blame] | 6727 | static struct pci_error_handlers ipr_err_handler = { |
| 6728 | .error_detected = ipr_pci_error_detected, |
| 6729 | .slot_reset = ipr_pci_slot_reset, |
| 6730 | }; |
| 6731 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6732 | static struct pci_driver ipr_driver = { |
| 6733 | .name = IPR_NAME, |
| 6734 | .id_table = ipr_pci_table, |
| 6735 | .probe = ipr_probe, |
| 6736 | .remove = ipr_remove, |
Greg Kroah-Hartman | d18c3db | 2005-06-23 17:35:56 -0700 | [diff] [blame] | 6737 | .shutdown = ipr_shutdown, |
Linas Vepstas | f8a88b19 | 2006-02-03 16:52:42 -0600 | [diff] [blame] | 6738 | .err_handler = &ipr_err_handler, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6739 | }; |
| 6740 | |
| 6741 | /** |
| 6742 | * ipr_init - Module entry point |
| 6743 | * |
| 6744 | * Return value: |
| 6745 | * 0 on success / negative value on failure |
| 6746 | **/ |
| 6747 | static int __init ipr_init(void) |
| 6748 | { |
| 6749 | ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", |
| 6750 | IPR_DRIVER_VERSION, IPR_DRIVER_DATE); |
| 6751 | |
| 6752 | return pci_module_init(&ipr_driver); |
| 6753 | } |
| 6754 | |
| 6755 | /** |
| 6756 | * ipr_exit - Module unload |
| 6757 | * |
| 6758 | * Module unload entry point. |
| 6759 | * |
| 6760 | * Return value: |
| 6761 | * none |
| 6762 | **/ |
| 6763 | static void __exit ipr_exit(void) |
| 6764 | { |
| 6765 | pci_unregister_driver(&ipr_driver); |
| 6766 | } |
| 6767 | |
| 6768 | module_init(ipr_init); |
| 6769 | module_exit(ipr_exit); |