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 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/slab.h> 63 #include <linux/ioport.h> 64 #include <linux/delay.h> 65 #include <linux/pci.h> 66 #include <linux/wait.h> 67 #include <linux/spinlock.h> 68 #include <linux/sched.h> 69 #include <linux/interrupt.h> 70 #include <linux/blkdev.h> 71 #include <linux/firmware.h> 72 #include <linux/module.h> 73 #include <linux/moduleparam.h> 74 #include <linux/libata.h> 75 #include <linux/hdreg.h> 76 #include <linux/reboot.h> 77 #include <linux/stringify.h> 78 #include <asm/io.h> 79 #include <asm/irq.h> 80 #include <asm/processor.h> 81 #include <scsi/scsi.h> 82 #include <scsi/scsi_host.h> 83 #include <scsi/scsi_tcq.h> 84 #include <scsi/scsi_eh.h> 85 #include <scsi/scsi_cmnd.h> 86 #include "ipr.h" 87 88 /* 89 * Global Data 90 */ 91 static LIST_HEAD(ipr_ioa_head); 92 static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL; 93 static unsigned int ipr_max_speed = 1; 94 static int ipr_testmode = 0; 95 static unsigned int ipr_fastfail = 0; 96 static unsigned int ipr_transop_timeout = 0; 97 static unsigned int ipr_debug = 0; 98 static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS; 99 static unsigned int ipr_dual_ioa_raid = 1; 100 static DEFINE_SPINLOCK(ipr_driver_lock); 101 102 /* This table describes the differences between DMA controller chips */ 103 static const struct ipr_chip_cfg_t ipr_chip_cfg[] = { 104 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */ 105 .mailbox = 0x0042C, 106 .cache_line_size = 0x20, 107 { 108 .set_interrupt_mask_reg = 0x0022C, 109 .clr_interrupt_mask_reg = 0x00230, 110 .clr_interrupt_mask_reg32 = 0x00230, 111 .sense_interrupt_mask_reg = 0x0022C, 112 .sense_interrupt_mask_reg32 = 0x0022C, 113 .clr_interrupt_reg = 0x00228, 114 .clr_interrupt_reg32 = 0x00228, 115 .sense_interrupt_reg = 0x00224, 116 .sense_interrupt_reg32 = 0x00224, 117 .ioarrin_reg = 0x00404, 118 .sense_uproc_interrupt_reg = 0x00214, 119 .sense_uproc_interrupt_reg32 = 0x00214, 120 .set_uproc_interrupt_reg = 0x00214, 121 .set_uproc_interrupt_reg32 = 0x00214, 122 .clr_uproc_interrupt_reg = 0x00218, 123 .clr_uproc_interrupt_reg32 = 0x00218 124 } 125 }, 126 { /* Snipe and Scamp */ 127 .mailbox = 0x0052C, 128 .cache_line_size = 0x20, 129 { 130 .set_interrupt_mask_reg = 0x00288, 131 .clr_interrupt_mask_reg = 0x0028C, 132 .clr_interrupt_mask_reg32 = 0x0028C, 133 .sense_interrupt_mask_reg = 0x00288, 134 .sense_interrupt_mask_reg32 = 0x00288, 135 .clr_interrupt_reg = 0x00284, 136 .clr_interrupt_reg32 = 0x00284, 137 .sense_interrupt_reg = 0x00280, 138 .sense_interrupt_reg32 = 0x00280, 139 .ioarrin_reg = 0x00504, 140 .sense_uproc_interrupt_reg = 0x00290, 141 .sense_uproc_interrupt_reg32 = 0x00290, 142 .set_uproc_interrupt_reg = 0x00290, 143 .set_uproc_interrupt_reg32 = 0x00290, 144 .clr_uproc_interrupt_reg = 0x00294, 145 .clr_uproc_interrupt_reg32 = 0x00294 146 } 147 }, 148 { /* CRoC */ 149 .mailbox = 0x00040, 150 .cache_line_size = 0x20, 151 { 152 .set_interrupt_mask_reg = 0x00010, 153 .clr_interrupt_mask_reg = 0x00018, 154 .clr_interrupt_mask_reg32 = 0x0001C, 155 .sense_interrupt_mask_reg = 0x00010, 156 .sense_interrupt_mask_reg32 = 0x00014, 157 .clr_interrupt_reg = 0x00008, 158 .clr_interrupt_reg32 = 0x0000C, 159 .sense_interrupt_reg = 0x00000, 160 .sense_interrupt_reg32 = 0x00004, 161 .ioarrin_reg = 0x00070, 162 .sense_uproc_interrupt_reg = 0x00020, 163 .sense_uproc_interrupt_reg32 = 0x00024, 164 .set_uproc_interrupt_reg = 0x00020, 165 .set_uproc_interrupt_reg32 = 0x00024, 166 .clr_uproc_interrupt_reg = 0x00028, 167 .clr_uproc_interrupt_reg32 = 0x0002C, 168 .init_feedback_reg = 0x0005C, 169 .dump_addr_reg = 0x00064, 170 .dump_data_reg = 0x00068 171 } 172 }, 173 }; 174 175 static const struct ipr_chip_t ipr_chip[] = { 176 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[0] }, 177 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[0] }, 178 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[0] }, 179 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[0] }, 180 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, &ipr_chip_cfg[0] }, 181 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[1] }, 182 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[1] }, 183 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, &ipr_chip_cfg[2] }, 184 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, IPR_USE_MSI, IPR_SIS64, &ipr_chip_cfg[2] } 185 }; 186 187 static int ipr_max_bus_speeds [] = { 188 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE 189 }; 190 191 MODULE_AUTHOR("Brian King <brking@us.ibm.com>"); 192 MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver"); 193 module_param_named(max_speed, ipr_max_speed, uint, 0); 194 MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320"); 195 module_param_named(log_level, ipr_log_level, uint, 0); 196 MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver"); 197 module_param_named(testmode, ipr_testmode, int, 0); 198 MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations"); 199 module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR); 200 MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries"); 201 module_param_named(transop_timeout, ipr_transop_timeout, int, 0); 202 MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)"); 203 module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR); 204 MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)"); 205 module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0); 206 MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)"); 207 module_param_named(max_devs, ipr_max_devs, int, 0); 208 MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. " 209 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]"); 210 MODULE_LICENSE("GPL"); 211 MODULE_VERSION(IPR_DRIVER_VERSION); 212 213 /* A constant array of IOASCs/URCs/Error Messages */ 214 static const 215 struct ipr_error_table_t ipr_error_table[] = { 216 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL, 217 "8155: An unknown error was received"}, 218 {0x00330000, 0, 0, 219 "Soft underlength error"}, 220 {0x005A0000, 0, 0, 221 "Command to be cancelled not found"}, 222 {0x00808000, 0, 0, 223 "Qualified success"}, 224 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL, 225 "FFFE: Soft device bus error recovered by the IOA"}, 226 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL, 227 "4101: Soft device bus fabric error"}, 228 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL, 229 "FFFC: Logical block guard error recovered by the device"}, 230 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL, 231 "FFFC: Logical block reference tag error recovered by the device"}, 232 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL, 233 "4171: Recovered scatter list tag / sequence number error"}, 234 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL, 235 "FF3D: Recovered logical block CRC error on IOA to Host transfer"}, 236 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL, 237 "4171: Recovered logical block sequence number error on IOA to Host transfer"}, 238 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL, 239 "FFFD: Recovered logical block reference tag error detected by the IOA"}, 240 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL, 241 "FFFD: Logical block guard error recovered by the IOA"}, 242 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL, 243 "FFF9: Device sector reassign successful"}, 244 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL, 245 "FFF7: Media error recovered by device rewrite procedures"}, 246 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL, 247 "7001: IOA sector reassignment successful"}, 248 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL, 249 "FFF9: Soft media error. Sector reassignment recommended"}, 250 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL, 251 "FFF7: Media error recovered by IOA rewrite procedures"}, 252 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL, 253 "FF3D: Soft PCI bus error recovered by the IOA"}, 254 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL, 255 "FFF6: Device hardware error recovered by the IOA"}, 256 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL, 257 "FFF6: Device hardware error recovered by the device"}, 258 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL, 259 "FF3D: Soft IOA error recovered by the IOA"}, 260 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL, 261 "FFFA: Undefined device response recovered by the IOA"}, 262 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL, 263 "FFF6: Device bus error, message or command phase"}, 264 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL, 265 "FFFE: Task Management Function failed"}, 266 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL, 267 "FFF6: Failure prediction threshold exceeded"}, 268 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL, 269 "8009: Impending cache battery pack failure"}, 270 {0x02040400, 0, 0, 271 "34FF: Disk device format in progress"}, 272 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL, 273 "9070: IOA requested reset"}, 274 {0x023F0000, 0, 0, 275 "Synchronization required"}, 276 {0x024E0000, 0, 0, 277 "No ready, IOA shutdown"}, 278 {0x025A0000, 0, 0, 279 "Not ready, IOA has been shutdown"}, 280 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL, 281 "3020: Storage subsystem configuration error"}, 282 {0x03110B00, 0, 0, 283 "FFF5: Medium error, data unreadable, recommend reassign"}, 284 {0x03110C00, 0, 0, 285 "7000: Medium error, data unreadable, do not reassign"}, 286 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL, 287 "FFF3: Disk media format bad"}, 288 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL, 289 "3002: Addressed device failed to respond to selection"}, 290 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL, 291 "3100: Device bus error"}, 292 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL, 293 "3109: IOA timed out a device command"}, 294 {0x04088000, 0, 0, 295 "3120: SCSI bus is not operational"}, 296 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL, 297 "4100: Hard device bus fabric error"}, 298 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL, 299 "310C: Logical block guard error detected by the device"}, 300 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL, 301 "310C: Logical block reference tag error detected by the device"}, 302 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL, 303 "4170: Scatter list tag / sequence number error"}, 304 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL, 305 "8150: Logical block CRC error on IOA to Host transfer"}, 306 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL, 307 "4170: Logical block sequence number error on IOA to Host transfer"}, 308 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL, 309 "310D: Logical block reference tag error detected by the IOA"}, 310 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL, 311 "310D: Logical block guard error detected by the IOA"}, 312 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL, 313 "9000: IOA reserved area data check"}, 314 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL, 315 "9001: IOA reserved area invalid data pattern"}, 316 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL, 317 "9002: IOA reserved area LRC error"}, 318 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL, 319 "Hardware Error, IOA metadata access error"}, 320 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL, 321 "102E: Out of alternate sectors for disk storage"}, 322 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL, 323 "FFF4: Data transfer underlength error"}, 324 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL, 325 "FFF4: Data transfer overlength error"}, 326 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL, 327 "3400: Logical unit failure"}, 328 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL, 329 "FFF4: Device microcode is corrupt"}, 330 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL, 331 "8150: PCI bus error"}, 332 {0x04430000, 1, 0, 333 "Unsupported device bus message received"}, 334 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL, 335 "FFF4: Disk device problem"}, 336 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL, 337 "8150: Permanent IOA failure"}, 338 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL, 339 "3010: Disk device returned wrong response to IOA"}, 340 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL, 341 "8151: IOA microcode error"}, 342 {0x04448500, 0, 0, 343 "Device bus status error"}, 344 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL, 345 "8157: IOA error requiring IOA reset to recover"}, 346 {0x04448700, 0, 0, 347 "ATA device status error"}, 348 {0x04490000, 0, 0, 349 "Message reject received from the device"}, 350 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL, 351 "8008: A permanent cache battery pack failure occurred"}, 352 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL, 353 "9090: Disk unit has been modified after the last known status"}, 354 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL, 355 "9081: IOA detected device error"}, 356 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL, 357 "9082: IOA detected device error"}, 358 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL, 359 "3110: Device bus error, message or command phase"}, 360 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL, 361 "3110: SAS Command / Task Management Function failed"}, 362 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL, 363 "9091: Incorrect hardware configuration change has been detected"}, 364 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL, 365 "9073: Invalid multi-adapter configuration"}, 366 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL, 367 "4010: Incorrect connection between cascaded expanders"}, 368 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL, 369 "4020: Connections exceed IOA design limits"}, 370 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL, 371 "4030: Incorrect multipath connection"}, 372 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL, 373 "4110: Unsupported enclosure function"}, 374 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL, 375 "FFF4: Command to logical unit failed"}, 376 {0x05240000, 1, 0, 377 "Illegal request, invalid request type or request packet"}, 378 {0x05250000, 0, 0, 379 "Illegal request, invalid resource handle"}, 380 {0x05258000, 0, 0, 381 "Illegal request, commands not allowed to this device"}, 382 {0x05258100, 0, 0, 383 "Illegal request, command not allowed to a secondary adapter"}, 384 {0x05258200, 0, 0, 385 "Illegal request, command not allowed to a non-optimized resource"}, 386 {0x05260000, 0, 0, 387 "Illegal request, invalid field in parameter list"}, 388 {0x05260100, 0, 0, 389 "Illegal request, parameter not supported"}, 390 {0x05260200, 0, 0, 391 "Illegal request, parameter value invalid"}, 392 {0x052C0000, 0, 0, 393 "Illegal request, command sequence error"}, 394 {0x052C8000, 1, 0, 395 "Illegal request, dual adapter support not enabled"}, 396 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL, 397 "9031: Array protection temporarily suspended, protection resuming"}, 398 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL, 399 "9040: Array protection temporarily suspended, protection resuming"}, 400 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL, 401 "3140: Device bus not ready to ready transition"}, 402 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL, 403 "FFFB: SCSI bus was reset"}, 404 {0x06290500, 0, 0, 405 "FFFE: SCSI bus transition to single ended"}, 406 {0x06290600, 0, 0, 407 "FFFE: SCSI bus transition to LVD"}, 408 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL, 409 "FFFB: SCSI bus was reset by another initiator"}, 410 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL, 411 "3029: A device replacement has occurred"}, 412 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL, 413 "9051: IOA cache data exists for a missing or failed device"}, 414 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL, 415 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"}, 416 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL, 417 "9025: Disk unit is not supported at its physical location"}, 418 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL, 419 "3020: IOA detected a SCSI bus configuration error"}, 420 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL, 421 "3150: SCSI bus configuration error"}, 422 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL, 423 "9074: Asymmetric advanced function disk configuration"}, 424 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL, 425 "4040: Incomplete multipath connection between IOA and enclosure"}, 426 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL, 427 "4041: Incomplete multipath connection between enclosure and device"}, 428 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL, 429 "9075: Incomplete multipath connection between IOA and remote IOA"}, 430 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL, 431 "9076: Configuration error, missing remote IOA"}, 432 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL, 433 "4050: Enclosure does not support a required multipath function"}, 434 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL, 435 "4070: Logically bad block written on device"}, 436 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL, 437 "9041: Array protection temporarily suspended"}, 438 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL, 439 "9042: Corrupt array parity detected on specified device"}, 440 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL, 441 "9030: Array no longer protected due to missing or failed disk unit"}, 442 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL, 443 "9071: Link operational transition"}, 444 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL, 445 "9072: Link not operational transition"}, 446 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL, 447 "9032: Array exposed but still protected"}, 448 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1, 449 "70DD: Device forced failed by disrupt device command"}, 450 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL, 451 "4061: Multipath redundancy level got better"}, 452 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL, 453 "4060: Multipath redundancy level got worse"}, 454 {0x07270000, 0, 0, 455 "Failure due to other device"}, 456 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL, 457 "9008: IOA does not support functions expected by devices"}, 458 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL, 459 "9010: Cache data associated with attached devices cannot be found"}, 460 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL, 461 "9011: Cache data belongs to devices other than those attached"}, 462 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL, 463 "9020: Array missing 2 or more devices with only 1 device present"}, 464 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL, 465 "9021: Array missing 2 or more devices with 2 or more devices present"}, 466 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL, 467 "9022: Exposed array is missing a required device"}, 468 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL, 469 "9023: Array member(s) not at required physical locations"}, 470 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL, 471 "9024: Array not functional due to present hardware configuration"}, 472 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL, 473 "9026: Array not functional due to present hardware configuration"}, 474 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL, 475 "9027: Array is missing a device and parity is out of sync"}, 476 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL, 477 "9028: Maximum number of arrays already exist"}, 478 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL, 479 "9050: Required cache data cannot be located for a disk unit"}, 480 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL, 481 "9052: Cache data exists for a device that has been modified"}, 482 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL, 483 "9054: IOA resources not available due to previous problems"}, 484 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL, 485 "9092: Disk unit requires initialization before use"}, 486 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL, 487 "9029: Incorrect hardware configuration change has been detected"}, 488 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL, 489 "9060: One or more disk pairs are missing from an array"}, 490 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL, 491 "9061: One or more disks are missing from an array"}, 492 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL, 493 "9062: One or more disks are missing from an array"}, 494 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL, 495 "9063: Maximum number of functional arrays has been exceeded"}, 496 {0x0B260000, 0, 0, 497 "Aborted command, invalid descriptor"}, 498 {0x0B5A0000, 0, 0, 499 "Command terminated by host"} 500 }; 501 502 static const struct ipr_ses_table_entry ipr_ses_table[] = { 503 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 }, 504 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 }, 505 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */ 506 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */ 507 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */ 508 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */ 509 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 }, 510 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 }, 511 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, 512 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, 513 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 }, 514 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 }, 515 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 } 516 }; 517 518 /* 519 * Function Prototypes 520 */ 521 static int ipr_reset_alert(struct ipr_cmnd *); 522 static void ipr_process_ccn(struct ipr_cmnd *); 523 static void ipr_process_error(struct ipr_cmnd *); 524 static void ipr_reset_ioa_job(struct ipr_cmnd *); 525 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *, 526 enum ipr_shutdown_type); 527 528 #ifdef CONFIG_SCSI_IPR_TRACE 529 /** 530 * ipr_trc_hook - Add a trace entry to the driver trace 531 * @ipr_cmd: ipr command struct 532 * @type: trace type 533 * @add_data: additional data 534 * 535 * Return value: 536 * none 537 **/ 538 static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd, 539 u8 type, u32 add_data) 540 { 541 struct ipr_trace_entry *trace_entry; 542 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 543 544 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++]; 545 trace_entry->time = jiffies; 546 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0]; 547 trace_entry->type = type; 548 if (ipr_cmd->ioa_cfg->sis64) 549 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command; 550 else 551 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command; 552 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff; 553 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle; 554 trace_entry->u.add_data = add_data; 555 } 556 #else 557 #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0) 558 #endif 559 560 /** 561 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse 562 * @ipr_cmd: ipr command struct 563 * 564 * Return value: 565 * none 566 **/ 567 static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd) 568 { 569 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 570 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 571 dma_addr_t dma_addr = ipr_cmd->dma_addr; 572 573 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 574 ioarcb->data_transfer_length = 0; 575 ioarcb->read_data_transfer_length = 0; 576 ioarcb->ioadl_len = 0; 577 ioarcb->read_ioadl_len = 0; 578 579 if (ipr_cmd->ioa_cfg->sis64) 580 ioarcb->u.sis64_addr_data.data_ioadl_addr = 581 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 582 else { 583 ioarcb->write_ioadl_addr = 584 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 585 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 586 } 587 588 ioasa->ioasc = 0; 589 ioasa->residual_data_len = 0; 590 ioasa->u.gata.status = 0; 591 592 ipr_cmd->scsi_cmd = NULL; 593 ipr_cmd->qc = NULL; 594 ipr_cmd->sense_buffer[0] = 0; 595 ipr_cmd->dma_use_sg = 0; 596 } 597 598 /** 599 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block 600 * @ipr_cmd: ipr command struct 601 * 602 * Return value: 603 * none 604 **/ 605 static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd) 606 { 607 ipr_reinit_ipr_cmnd(ipr_cmd); 608 ipr_cmd->u.scratch = 0; 609 ipr_cmd->sibling = NULL; 610 init_timer(&ipr_cmd->timer); 611 } 612 613 /** 614 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block 615 * @ioa_cfg: ioa config struct 616 * 617 * Return value: 618 * pointer to ipr command struct 619 **/ 620 static 621 struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg) 622 { 623 struct ipr_cmnd *ipr_cmd; 624 625 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue); 626 list_del(&ipr_cmd->queue); 627 ipr_init_ipr_cmnd(ipr_cmd); 628 629 return ipr_cmd; 630 } 631 632 /** 633 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts 634 * @ioa_cfg: ioa config struct 635 * @clr_ints: interrupts to clear 636 * 637 * This function masks all interrupts on the adapter, then clears the 638 * interrupts specified in the mask 639 * 640 * Return value: 641 * none 642 **/ 643 static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg, 644 u32 clr_ints) 645 { 646 volatile u32 int_reg; 647 648 /* Stop new interrupts */ 649 ioa_cfg->allow_interrupts = 0; 650 651 /* Set interrupt mask to stop all new interrupts */ 652 if (ioa_cfg->sis64) 653 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg); 654 else 655 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg); 656 657 /* Clear any pending interrupts */ 658 if (ioa_cfg->sis64) 659 writel(~0, ioa_cfg->regs.clr_interrupt_reg); 660 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32); 661 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 662 } 663 664 /** 665 * ipr_save_pcix_cmd_reg - Save PCI-X command register 666 * @ioa_cfg: ioa config struct 667 * 668 * Return value: 669 * 0 on success / -EIO on failure 670 **/ 671 static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) 672 { 673 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); 674 675 if (pcix_cmd_reg == 0) 676 return 0; 677 678 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, 679 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { 680 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); 681 return -EIO; 682 } 683 684 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO; 685 return 0; 686 } 687 688 /** 689 * ipr_set_pcix_cmd_reg - Setup PCI-X command register 690 * @ioa_cfg: ioa config struct 691 * 692 * Return value: 693 * 0 on success / -EIO on failure 694 **/ 695 static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) 696 { 697 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); 698 699 if (pcix_cmd_reg) { 700 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, 701 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { 702 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n"); 703 return -EIO; 704 } 705 } 706 707 return 0; 708 } 709 710 /** 711 * ipr_sata_eh_done - done function for aborted SATA commands 712 * @ipr_cmd: ipr command struct 713 * 714 * This function is invoked for ops generated to SATA 715 * devices which are being aborted. 716 * 717 * Return value: 718 * none 719 **/ 720 static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd) 721 { 722 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 723 struct ata_queued_cmd *qc = ipr_cmd->qc; 724 struct ipr_sata_port *sata_port = qc->ap->private_data; 725 726 qc->err_mask |= AC_ERR_OTHER; 727 sata_port->ioasa.status |= ATA_BUSY; 728 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 729 ata_qc_complete(qc); 730 } 731 732 /** 733 * ipr_scsi_eh_done - mid-layer done function for aborted ops 734 * @ipr_cmd: ipr command struct 735 * 736 * This function is invoked by the interrupt handler for 737 * ops generated by the SCSI mid-layer which are being aborted. 738 * 739 * Return value: 740 * none 741 **/ 742 static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) 743 { 744 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 745 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 746 747 scsi_cmd->result |= (DID_ERROR << 16); 748 749 scsi_dma_unmap(ipr_cmd->scsi_cmd); 750 scsi_cmd->scsi_done(scsi_cmd); 751 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 752 } 753 754 /** 755 * ipr_fail_all_ops - Fails all outstanding ops. 756 * @ioa_cfg: ioa config struct 757 * 758 * This function fails all outstanding ops. 759 * 760 * Return value: 761 * none 762 **/ 763 static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg) 764 { 765 struct ipr_cmnd *ipr_cmd, *temp; 766 767 ENTER; 768 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) { 769 list_del(&ipr_cmd->queue); 770 771 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET); 772 ipr_cmd->ioasa.ilid = cpu_to_be32(IPR_DRIVER_ILID); 773 774 if (ipr_cmd->scsi_cmd) 775 ipr_cmd->done = ipr_scsi_eh_done; 776 else if (ipr_cmd->qc) 777 ipr_cmd->done = ipr_sata_eh_done; 778 779 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET); 780 del_timer(&ipr_cmd->timer); 781 ipr_cmd->done(ipr_cmd); 782 } 783 784 LEAVE; 785 } 786 787 /** 788 * ipr_send_command - Send driver initiated requests. 789 * @ipr_cmd: ipr command struct 790 * 791 * This function sends a command to the adapter using the correct write call. 792 * In the case of sis64, calculate the ioarcb size required. Then or in the 793 * appropriate bits. 794 * 795 * Return value: 796 * none 797 **/ 798 static void ipr_send_command(struct ipr_cmnd *ipr_cmd) 799 { 800 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 801 dma_addr_t send_dma_addr = ipr_cmd->dma_addr; 802 803 if (ioa_cfg->sis64) { 804 /* The default size is 256 bytes */ 805 send_dma_addr |= 0x1; 806 807 /* If the number of ioadls * size of ioadl > 128 bytes, 808 then use a 512 byte ioarcb */ 809 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 ) 810 send_dma_addr |= 0x4; 811 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg); 812 } else 813 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg); 814 } 815 816 /** 817 * ipr_do_req - Send driver initiated requests. 818 * @ipr_cmd: ipr command struct 819 * @done: done function 820 * @timeout_func: timeout function 821 * @timeout: timeout value 822 * 823 * This function sends the specified command to the adapter with the 824 * timeout given. The done function is invoked on command completion. 825 * 826 * Return value: 827 * none 828 **/ 829 static void ipr_do_req(struct ipr_cmnd *ipr_cmd, 830 void (*done) (struct ipr_cmnd *), 831 void (*timeout_func) (struct ipr_cmnd *), u32 timeout) 832 { 833 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 834 835 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 836 837 ipr_cmd->done = done; 838 839 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 840 ipr_cmd->timer.expires = jiffies + timeout; 841 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func; 842 843 add_timer(&ipr_cmd->timer); 844 845 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0); 846 847 mb(); 848 849 ipr_send_command(ipr_cmd); 850 } 851 852 /** 853 * ipr_internal_cmd_done - Op done function for an internally generated op. 854 * @ipr_cmd: ipr command struct 855 * 856 * This function is the op done function for an internally generated, 857 * blocking op. It simply wakes the sleeping thread. 858 * 859 * Return value: 860 * none 861 **/ 862 static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd) 863 { 864 if (ipr_cmd->sibling) 865 ipr_cmd->sibling = NULL; 866 else 867 complete(&ipr_cmd->completion); 868 } 869 870 /** 871 * ipr_init_ioadl - initialize the ioadl for the correct SIS type 872 * @ipr_cmd: ipr command struct 873 * @dma_addr: dma address 874 * @len: transfer length 875 * @flags: ioadl flag value 876 * 877 * This function initializes an ioadl in the case where there is only a single 878 * descriptor. 879 * 880 * Return value: 881 * nothing 882 **/ 883 static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr, 884 u32 len, int flags) 885 { 886 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 887 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 888 889 ipr_cmd->dma_use_sg = 1; 890 891 if (ipr_cmd->ioa_cfg->sis64) { 892 ioadl64->flags = cpu_to_be32(flags); 893 ioadl64->data_len = cpu_to_be32(len); 894 ioadl64->address = cpu_to_be64(dma_addr); 895 896 ipr_cmd->ioarcb.ioadl_len = 897 cpu_to_be32(sizeof(struct ipr_ioadl64_desc)); 898 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); 899 } else { 900 ioadl->flags_and_data_len = cpu_to_be32(flags | len); 901 ioadl->address = cpu_to_be32(dma_addr); 902 903 if (flags == IPR_IOADL_FLAGS_READ_LAST) { 904 ipr_cmd->ioarcb.read_ioadl_len = 905 cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 906 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len); 907 } else { 908 ipr_cmd->ioarcb.ioadl_len = 909 cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 910 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); 911 } 912 } 913 } 914 915 /** 916 * ipr_send_blocking_cmd - Send command and sleep on its completion. 917 * @ipr_cmd: ipr command struct 918 * @timeout_func: function to invoke if command times out 919 * @timeout: timeout 920 * 921 * Return value: 922 * none 923 **/ 924 static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd, 925 void (*timeout_func) (struct ipr_cmnd *ipr_cmd), 926 u32 timeout) 927 { 928 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 929 930 init_completion(&ipr_cmd->completion); 931 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout); 932 933 spin_unlock_irq(ioa_cfg->host->host_lock); 934 wait_for_completion(&ipr_cmd->completion); 935 spin_lock_irq(ioa_cfg->host->host_lock); 936 } 937 938 /** 939 * ipr_send_hcam - Send an HCAM to the adapter. 940 * @ioa_cfg: ioa config struct 941 * @type: HCAM type 942 * @hostrcb: hostrcb struct 943 * 944 * This function will send a Host Controlled Async command to the adapter. 945 * If HCAMs are currently not allowed to be issued to the adapter, it will 946 * place the hostrcb on the free queue. 947 * 948 * Return value: 949 * none 950 **/ 951 static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type, 952 struct ipr_hostrcb *hostrcb) 953 { 954 struct ipr_cmnd *ipr_cmd; 955 struct ipr_ioarcb *ioarcb; 956 957 if (ioa_cfg->allow_cmds) { 958 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 959 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 960 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q); 961 962 ipr_cmd->u.hostrcb = hostrcb; 963 ioarcb = &ipr_cmd->ioarcb; 964 965 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 966 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM; 967 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC; 968 ioarcb->cmd_pkt.cdb[1] = type; 969 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff; 970 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff; 971 972 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma, 973 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST); 974 975 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE) 976 ipr_cmd->done = ipr_process_ccn; 977 else 978 ipr_cmd->done = ipr_process_error; 979 980 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR); 981 982 mb(); 983 984 ipr_send_command(ipr_cmd); 985 } else { 986 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 987 } 988 } 989 990 /** 991 * ipr_update_ata_class - Update the ata class in the resource entry 992 * @res: resource entry struct 993 * @proto: cfgte device bus protocol value 994 * 995 * Return value: 996 * none 997 **/ 998 static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto) 999 { 1000 switch(proto) { 1001 case IPR_PROTO_SATA: 1002 case IPR_PROTO_SAS_STP: 1003 res->ata_class = ATA_DEV_ATA; 1004 break; 1005 case IPR_PROTO_SATA_ATAPI: 1006 case IPR_PROTO_SAS_STP_ATAPI: 1007 res->ata_class = ATA_DEV_ATAPI; 1008 break; 1009 default: 1010 res->ata_class = ATA_DEV_UNKNOWN; 1011 break; 1012 }; 1013 } 1014 1015 /** 1016 * ipr_init_res_entry - Initialize a resource entry struct. 1017 * @res: resource entry struct 1018 * @cfgtew: config table entry wrapper struct 1019 * 1020 * Return value: 1021 * none 1022 **/ 1023 static void ipr_init_res_entry(struct ipr_resource_entry *res, 1024 struct ipr_config_table_entry_wrapper *cfgtew) 1025 { 1026 int found = 0; 1027 unsigned int proto; 1028 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; 1029 struct ipr_resource_entry *gscsi_res = NULL; 1030 1031 res->needs_sync_complete = 0; 1032 res->in_erp = 0; 1033 res->add_to_ml = 0; 1034 res->del_from_ml = 0; 1035 res->resetting_device = 0; 1036 res->sdev = NULL; 1037 res->sata_port = NULL; 1038 1039 if (ioa_cfg->sis64) { 1040 proto = cfgtew->u.cfgte64->proto; 1041 res->res_flags = cfgtew->u.cfgte64->res_flags; 1042 res->qmodel = IPR_QUEUEING_MODEL64(res); 1043 res->type = cfgtew->u.cfgte64->res_type & 0x0f; 1044 1045 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, 1046 sizeof(res->res_path)); 1047 1048 res->bus = 0; 1049 res->lun = scsilun_to_int(&res->dev_lun); 1050 1051 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) { 1052 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) { 1053 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) { 1054 found = 1; 1055 res->target = gscsi_res->target; 1056 break; 1057 } 1058 } 1059 if (!found) { 1060 res->target = find_first_zero_bit(ioa_cfg->target_ids, 1061 ioa_cfg->max_devs_supported); 1062 set_bit(res->target, ioa_cfg->target_ids); 1063 } 1064 1065 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, 1066 sizeof(res->dev_lun.scsi_lun)); 1067 } else if (res->type == IPR_RES_TYPE_IOAFP) { 1068 res->bus = IPR_IOAFP_VIRTUAL_BUS; 1069 res->target = 0; 1070 } else if (res->type == IPR_RES_TYPE_ARRAY) { 1071 res->bus = IPR_ARRAY_VIRTUAL_BUS; 1072 res->target = find_first_zero_bit(ioa_cfg->array_ids, 1073 ioa_cfg->max_devs_supported); 1074 set_bit(res->target, ioa_cfg->array_ids); 1075 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) { 1076 res->bus = IPR_VSET_VIRTUAL_BUS; 1077 res->target = find_first_zero_bit(ioa_cfg->vset_ids, 1078 ioa_cfg->max_devs_supported); 1079 set_bit(res->target, ioa_cfg->vset_ids); 1080 } else { 1081 res->target = find_first_zero_bit(ioa_cfg->target_ids, 1082 ioa_cfg->max_devs_supported); 1083 set_bit(res->target, ioa_cfg->target_ids); 1084 } 1085 } else { 1086 proto = cfgtew->u.cfgte->proto; 1087 res->qmodel = IPR_QUEUEING_MODEL(res); 1088 res->flags = cfgtew->u.cfgte->flags; 1089 if (res->flags & IPR_IS_IOA_RESOURCE) 1090 res->type = IPR_RES_TYPE_IOAFP; 1091 else 1092 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; 1093 1094 res->bus = cfgtew->u.cfgte->res_addr.bus; 1095 res->target = cfgtew->u.cfgte->res_addr.target; 1096 res->lun = cfgtew->u.cfgte->res_addr.lun; 1097 } 1098 1099 ipr_update_ata_class(res, proto); 1100 } 1101 1102 /** 1103 * ipr_is_same_device - Determine if two devices are the same. 1104 * @res: resource entry struct 1105 * @cfgtew: config table entry wrapper struct 1106 * 1107 * Return value: 1108 * 1 if the devices are the same / 0 otherwise 1109 **/ 1110 static int ipr_is_same_device(struct ipr_resource_entry *res, 1111 struct ipr_config_table_entry_wrapper *cfgtew) 1112 { 1113 if (res->ioa_cfg->sis64) { 1114 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id, 1115 sizeof(cfgtew->u.cfgte64->dev_id)) && 1116 !memcmp(&res->lun, &cfgtew->u.cfgte64->lun, 1117 sizeof(cfgtew->u.cfgte64->lun))) { 1118 return 1; 1119 } 1120 } else { 1121 if (res->bus == cfgtew->u.cfgte->res_addr.bus && 1122 res->target == cfgtew->u.cfgte->res_addr.target && 1123 res->lun == cfgtew->u.cfgte->res_addr.lun) 1124 return 1; 1125 } 1126 1127 return 0; 1128 } 1129 1130 /** 1131 * ipr_format_resource_path - Format the resource path for printing. 1132 * @res_path: resource path 1133 * @buf: buffer 1134 * 1135 * Return value: 1136 * pointer to buffer 1137 **/ 1138 static char *ipr_format_resource_path(u8 *res_path, char *buffer) 1139 { 1140 int i; 1141 1142 sprintf(buffer, "%02X", res_path[0]); 1143 for (i=1; res_path[i] != 0xff; i++) 1144 sprintf(buffer, "%s-%02X", buffer, res_path[i]); 1145 1146 return buffer; 1147 } 1148 1149 /** 1150 * ipr_update_res_entry - Update the resource entry. 1151 * @res: resource entry struct 1152 * @cfgtew: config table entry wrapper struct 1153 * 1154 * Return value: 1155 * none 1156 **/ 1157 static void ipr_update_res_entry(struct ipr_resource_entry *res, 1158 struct ipr_config_table_entry_wrapper *cfgtew) 1159 { 1160 char buffer[IPR_MAX_RES_PATH_LENGTH]; 1161 unsigned int proto; 1162 int new_path = 0; 1163 1164 if (res->ioa_cfg->sis64) { 1165 res->flags = cfgtew->u.cfgte64->flags; 1166 res->res_flags = cfgtew->u.cfgte64->res_flags; 1167 res->type = cfgtew->u.cfgte64->res_type & 0x0f; 1168 1169 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data, 1170 sizeof(struct ipr_std_inq_data)); 1171 1172 res->qmodel = IPR_QUEUEING_MODEL64(res); 1173 proto = cfgtew->u.cfgte64->proto; 1174 res->res_handle = cfgtew->u.cfgte64->res_handle; 1175 res->dev_id = cfgtew->u.cfgte64->dev_id; 1176 1177 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, 1178 sizeof(res->dev_lun.scsi_lun)); 1179 1180 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path, 1181 sizeof(res->res_path))) { 1182 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, 1183 sizeof(res->res_path)); 1184 new_path = 1; 1185 } 1186 1187 if (res->sdev && new_path) 1188 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n", 1189 ipr_format_resource_path(&res->res_path[0], &buffer[0])); 1190 } else { 1191 res->flags = cfgtew->u.cfgte->flags; 1192 if (res->flags & IPR_IS_IOA_RESOURCE) 1193 res->type = IPR_RES_TYPE_IOAFP; 1194 else 1195 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; 1196 1197 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data, 1198 sizeof(struct ipr_std_inq_data)); 1199 1200 res->qmodel = IPR_QUEUEING_MODEL(res); 1201 proto = cfgtew->u.cfgte->proto; 1202 res->res_handle = cfgtew->u.cfgte->res_handle; 1203 } 1204 1205 ipr_update_ata_class(res, proto); 1206 } 1207 1208 /** 1209 * ipr_clear_res_target - Clear the bit in the bit map representing the target 1210 * for the resource. 1211 * @res: resource entry struct 1212 * @cfgtew: config table entry wrapper struct 1213 * 1214 * Return value: 1215 * none 1216 **/ 1217 static void ipr_clear_res_target(struct ipr_resource_entry *res) 1218 { 1219 struct ipr_resource_entry *gscsi_res = NULL; 1220 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; 1221 1222 if (!ioa_cfg->sis64) 1223 return; 1224 1225 if (res->bus == IPR_ARRAY_VIRTUAL_BUS) 1226 clear_bit(res->target, ioa_cfg->array_ids); 1227 else if (res->bus == IPR_VSET_VIRTUAL_BUS) 1228 clear_bit(res->target, ioa_cfg->vset_ids); 1229 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) { 1230 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) 1231 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res) 1232 return; 1233 clear_bit(res->target, ioa_cfg->target_ids); 1234 1235 } else if (res->bus == 0) 1236 clear_bit(res->target, ioa_cfg->target_ids); 1237 } 1238 1239 /** 1240 * ipr_handle_config_change - Handle a config change from the adapter 1241 * @ioa_cfg: ioa config struct 1242 * @hostrcb: hostrcb 1243 * 1244 * Return value: 1245 * none 1246 **/ 1247 static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg, 1248 struct ipr_hostrcb *hostrcb) 1249 { 1250 struct ipr_resource_entry *res = NULL; 1251 struct ipr_config_table_entry_wrapper cfgtew; 1252 __be32 cc_res_handle; 1253 1254 u32 is_ndn = 1; 1255 1256 if (ioa_cfg->sis64) { 1257 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64; 1258 cc_res_handle = cfgtew.u.cfgte64->res_handle; 1259 } else { 1260 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte; 1261 cc_res_handle = cfgtew.u.cfgte->res_handle; 1262 } 1263 1264 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 1265 if (res->res_handle == cc_res_handle) { 1266 is_ndn = 0; 1267 break; 1268 } 1269 } 1270 1271 if (is_ndn) { 1272 if (list_empty(&ioa_cfg->free_res_q)) { 1273 ipr_send_hcam(ioa_cfg, 1274 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, 1275 hostrcb); 1276 return; 1277 } 1278 1279 res = list_entry(ioa_cfg->free_res_q.next, 1280 struct ipr_resource_entry, queue); 1281 1282 list_del(&res->queue); 1283 ipr_init_res_entry(res, &cfgtew); 1284 list_add_tail(&res->queue, &ioa_cfg->used_res_q); 1285 } 1286 1287 ipr_update_res_entry(res, &cfgtew); 1288 1289 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) { 1290 if (res->sdev) { 1291 res->del_from_ml = 1; 1292 res->res_handle = IPR_INVALID_RES_HANDLE; 1293 if (ioa_cfg->allow_ml_add_del) 1294 schedule_work(&ioa_cfg->work_q); 1295 } else { 1296 ipr_clear_res_target(res); 1297 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 1298 } 1299 } else if (!res->sdev) { 1300 res->add_to_ml = 1; 1301 if (ioa_cfg->allow_ml_add_del) 1302 schedule_work(&ioa_cfg->work_q); 1303 } 1304 1305 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 1306 } 1307 1308 /** 1309 * ipr_process_ccn - Op done function for a CCN. 1310 * @ipr_cmd: ipr command struct 1311 * 1312 * This function is the op done function for a configuration 1313 * change notification host controlled async from the adapter. 1314 * 1315 * Return value: 1316 * none 1317 **/ 1318 static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd) 1319 { 1320 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 1321 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; 1322 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 1323 1324 list_del(&hostrcb->queue); 1325 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 1326 1327 if (ioasc) { 1328 if (ioasc != IPR_IOASC_IOA_WAS_RESET) 1329 dev_err(&ioa_cfg->pdev->dev, 1330 "Host RCB failed with IOASC: 0x%08X\n", ioasc); 1331 1332 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 1333 } else { 1334 ipr_handle_config_change(ioa_cfg, hostrcb); 1335 } 1336 } 1337 1338 /** 1339 * strip_and_pad_whitespace - Strip and pad trailing whitespace. 1340 * @i: index into buffer 1341 * @buf: string to modify 1342 * 1343 * This function will strip all trailing whitespace, pad the end 1344 * of the string with a single space, and NULL terminate the string. 1345 * 1346 * Return value: 1347 * new length of string 1348 **/ 1349 static int strip_and_pad_whitespace(int i, char *buf) 1350 { 1351 while (i && buf[i] == ' ') 1352 i--; 1353 buf[i+1] = ' '; 1354 buf[i+2] = '\0'; 1355 return i + 2; 1356 } 1357 1358 /** 1359 * ipr_log_vpd_compact - Log the passed extended VPD compactly. 1360 * @prefix: string to print at start of printk 1361 * @hostrcb: hostrcb pointer 1362 * @vpd: vendor/product id/sn struct 1363 * 1364 * Return value: 1365 * none 1366 **/ 1367 static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, 1368 struct ipr_vpd *vpd) 1369 { 1370 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3]; 1371 int i = 0; 1372 1373 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); 1374 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer); 1375 1376 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN); 1377 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer); 1378 1379 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN); 1380 buffer[IPR_SERIAL_NUM_LEN + i] = '\0'; 1381 1382 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer); 1383 } 1384 1385 /** 1386 * ipr_log_vpd - Log the passed VPD to the error log. 1387 * @vpd: vendor/product id/sn struct 1388 * 1389 * Return value: 1390 * none 1391 **/ 1392 static void ipr_log_vpd(struct ipr_vpd *vpd) 1393 { 1394 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN 1395 + IPR_SERIAL_NUM_LEN]; 1396 1397 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); 1398 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id, 1399 IPR_PROD_ID_LEN); 1400 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0'; 1401 ipr_err("Vendor/Product ID: %s\n", buffer); 1402 1403 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN); 1404 buffer[IPR_SERIAL_NUM_LEN] = '\0'; 1405 ipr_err(" Serial Number: %s\n", buffer); 1406 } 1407 1408 /** 1409 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly. 1410 * @prefix: string to print at start of printk 1411 * @hostrcb: hostrcb pointer 1412 * @vpd: vendor/product id/sn/wwn struct 1413 * 1414 * Return value: 1415 * none 1416 **/ 1417 static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, 1418 struct ipr_ext_vpd *vpd) 1419 { 1420 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd); 1421 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix, 1422 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1])); 1423 } 1424 1425 /** 1426 * ipr_log_ext_vpd - Log the passed extended VPD to the error log. 1427 * @vpd: vendor/product id/sn/wwn struct 1428 * 1429 * Return value: 1430 * none 1431 **/ 1432 static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd) 1433 { 1434 ipr_log_vpd(&vpd->vpd); 1435 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]), 1436 be32_to_cpu(vpd->wwid[1])); 1437 } 1438 1439 /** 1440 * ipr_log_enhanced_cache_error - Log a cache error. 1441 * @ioa_cfg: ioa config struct 1442 * @hostrcb: hostrcb struct 1443 * 1444 * Return value: 1445 * none 1446 **/ 1447 static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg, 1448 struct ipr_hostrcb *hostrcb) 1449 { 1450 struct ipr_hostrcb_type_12_error *error; 1451 1452 if (ioa_cfg->sis64) 1453 error = &hostrcb->hcam.u.error64.u.type_12_error; 1454 else 1455 error = &hostrcb->hcam.u.error.u.type_12_error; 1456 1457 ipr_err("-----Current Configuration-----\n"); 1458 ipr_err("Cache Directory Card Information:\n"); 1459 ipr_log_ext_vpd(&error->ioa_vpd); 1460 ipr_err("Adapter Card Information:\n"); 1461 ipr_log_ext_vpd(&error->cfc_vpd); 1462 1463 ipr_err("-----Expected Configuration-----\n"); 1464 ipr_err("Cache Directory Card Information:\n"); 1465 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd); 1466 ipr_err("Adapter Card Information:\n"); 1467 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd); 1468 1469 ipr_err("Additional IOA Data: %08X %08X %08X\n", 1470 be32_to_cpu(error->ioa_data[0]), 1471 be32_to_cpu(error->ioa_data[1]), 1472 be32_to_cpu(error->ioa_data[2])); 1473 } 1474 1475 /** 1476 * ipr_log_cache_error - Log a cache error. 1477 * @ioa_cfg: ioa config struct 1478 * @hostrcb: hostrcb struct 1479 * 1480 * Return value: 1481 * none 1482 **/ 1483 static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg, 1484 struct ipr_hostrcb *hostrcb) 1485 { 1486 struct ipr_hostrcb_type_02_error *error = 1487 &hostrcb->hcam.u.error.u.type_02_error; 1488 1489 ipr_err("-----Current Configuration-----\n"); 1490 ipr_err("Cache Directory Card Information:\n"); 1491 ipr_log_vpd(&error->ioa_vpd); 1492 ipr_err("Adapter Card Information:\n"); 1493 ipr_log_vpd(&error->cfc_vpd); 1494 1495 ipr_err("-----Expected Configuration-----\n"); 1496 ipr_err("Cache Directory Card Information:\n"); 1497 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd); 1498 ipr_err("Adapter Card Information:\n"); 1499 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd); 1500 1501 ipr_err("Additional IOA Data: %08X %08X %08X\n", 1502 be32_to_cpu(error->ioa_data[0]), 1503 be32_to_cpu(error->ioa_data[1]), 1504 be32_to_cpu(error->ioa_data[2])); 1505 } 1506 1507 /** 1508 * ipr_log_enhanced_config_error - Log a configuration error. 1509 * @ioa_cfg: ioa config struct 1510 * @hostrcb: hostrcb struct 1511 * 1512 * Return value: 1513 * none 1514 **/ 1515 static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg, 1516 struct ipr_hostrcb *hostrcb) 1517 { 1518 int errors_logged, i; 1519 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry; 1520 struct ipr_hostrcb_type_13_error *error; 1521 1522 error = &hostrcb->hcam.u.error.u.type_13_error; 1523 errors_logged = be32_to_cpu(error->errors_logged); 1524 1525 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1526 be32_to_cpu(error->errors_detected), errors_logged); 1527 1528 dev_entry = error->dev; 1529 1530 for (i = 0; i < errors_logged; i++, dev_entry++) { 1531 ipr_err_separator; 1532 1533 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); 1534 ipr_log_ext_vpd(&dev_entry->vpd); 1535 1536 ipr_err("-----New Device Information-----\n"); 1537 ipr_log_ext_vpd(&dev_entry->new_vpd); 1538 1539 ipr_err("Cache Directory Card Information:\n"); 1540 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); 1541 1542 ipr_err("Adapter Card Information:\n"); 1543 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); 1544 } 1545 } 1546 1547 /** 1548 * ipr_log_sis64_config_error - Log a device error. 1549 * @ioa_cfg: ioa config struct 1550 * @hostrcb: hostrcb struct 1551 * 1552 * Return value: 1553 * none 1554 **/ 1555 static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg, 1556 struct ipr_hostrcb *hostrcb) 1557 { 1558 int errors_logged, i; 1559 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry; 1560 struct ipr_hostrcb_type_23_error *error; 1561 char buffer[IPR_MAX_RES_PATH_LENGTH]; 1562 1563 error = &hostrcb->hcam.u.error64.u.type_23_error; 1564 errors_logged = be32_to_cpu(error->errors_logged); 1565 1566 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1567 be32_to_cpu(error->errors_detected), errors_logged); 1568 1569 dev_entry = error->dev; 1570 1571 for (i = 0; i < errors_logged; i++, dev_entry++) { 1572 ipr_err_separator; 1573 1574 ipr_err("Device %d : %s", i + 1, 1575 ipr_format_resource_path(&dev_entry->res_path[0], &buffer[0])); 1576 ipr_log_ext_vpd(&dev_entry->vpd); 1577 1578 ipr_err("-----New Device Information-----\n"); 1579 ipr_log_ext_vpd(&dev_entry->new_vpd); 1580 1581 ipr_err("Cache Directory Card Information:\n"); 1582 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); 1583 1584 ipr_err("Adapter Card Information:\n"); 1585 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); 1586 } 1587 } 1588 1589 /** 1590 * ipr_log_config_error - Log a configuration error. 1591 * @ioa_cfg: ioa config struct 1592 * @hostrcb: hostrcb struct 1593 * 1594 * Return value: 1595 * none 1596 **/ 1597 static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg, 1598 struct ipr_hostrcb *hostrcb) 1599 { 1600 int errors_logged, i; 1601 struct ipr_hostrcb_device_data_entry *dev_entry; 1602 struct ipr_hostrcb_type_03_error *error; 1603 1604 error = &hostrcb->hcam.u.error.u.type_03_error; 1605 errors_logged = be32_to_cpu(error->errors_logged); 1606 1607 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1608 be32_to_cpu(error->errors_detected), errors_logged); 1609 1610 dev_entry = error->dev; 1611 1612 for (i = 0; i < errors_logged; i++, dev_entry++) { 1613 ipr_err_separator; 1614 1615 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); 1616 ipr_log_vpd(&dev_entry->vpd); 1617 1618 ipr_err("-----New Device Information-----\n"); 1619 ipr_log_vpd(&dev_entry->new_vpd); 1620 1621 ipr_err("Cache Directory Card Information:\n"); 1622 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd); 1623 1624 ipr_err("Adapter Card Information:\n"); 1625 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd); 1626 1627 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n", 1628 be32_to_cpu(dev_entry->ioa_data[0]), 1629 be32_to_cpu(dev_entry->ioa_data[1]), 1630 be32_to_cpu(dev_entry->ioa_data[2]), 1631 be32_to_cpu(dev_entry->ioa_data[3]), 1632 be32_to_cpu(dev_entry->ioa_data[4])); 1633 } 1634 } 1635 1636 /** 1637 * ipr_log_enhanced_array_error - Log an array configuration error. 1638 * @ioa_cfg: ioa config struct 1639 * @hostrcb: hostrcb struct 1640 * 1641 * Return value: 1642 * none 1643 **/ 1644 static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg, 1645 struct ipr_hostrcb *hostrcb) 1646 { 1647 int i, num_entries; 1648 struct ipr_hostrcb_type_14_error *error; 1649 struct ipr_hostrcb_array_data_entry_enhanced *array_entry; 1650 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 1651 1652 error = &hostrcb->hcam.u.error.u.type_14_error; 1653 1654 ipr_err_separator; 1655 1656 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", 1657 error->protection_level, 1658 ioa_cfg->host->host_no, 1659 error->last_func_vset_res_addr.bus, 1660 error->last_func_vset_res_addr.target, 1661 error->last_func_vset_res_addr.lun); 1662 1663 ipr_err_separator; 1664 1665 array_entry = error->array_member; 1666 num_entries = min_t(u32, be32_to_cpu(error->num_entries), 1667 sizeof(error->array_member)); 1668 1669 for (i = 0; i < num_entries; i++, array_entry++) { 1670 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 1671 continue; 1672 1673 if (be32_to_cpu(error->exposed_mode_adn) == i) 1674 ipr_err("Exposed Array Member %d:\n", i); 1675 else 1676 ipr_err("Array Member %d:\n", i); 1677 1678 ipr_log_ext_vpd(&array_entry->vpd); 1679 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); 1680 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, 1681 "Expected Location"); 1682 1683 ipr_err_separator; 1684 } 1685 } 1686 1687 /** 1688 * ipr_log_array_error - Log an array configuration error. 1689 * @ioa_cfg: ioa config struct 1690 * @hostrcb: hostrcb struct 1691 * 1692 * Return value: 1693 * none 1694 **/ 1695 static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg, 1696 struct ipr_hostrcb *hostrcb) 1697 { 1698 int i; 1699 struct ipr_hostrcb_type_04_error *error; 1700 struct ipr_hostrcb_array_data_entry *array_entry; 1701 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 1702 1703 error = &hostrcb->hcam.u.error.u.type_04_error; 1704 1705 ipr_err_separator; 1706 1707 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", 1708 error->protection_level, 1709 ioa_cfg->host->host_no, 1710 error->last_func_vset_res_addr.bus, 1711 error->last_func_vset_res_addr.target, 1712 error->last_func_vset_res_addr.lun); 1713 1714 ipr_err_separator; 1715 1716 array_entry = error->array_member; 1717 1718 for (i = 0; i < 18; i++) { 1719 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 1720 continue; 1721 1722 if (be32_to_cpu(error->exposed_mode_adn) == i) 1723 ipr_err("Exposed Array Member %d:\n", i); 1724 else 1725 ipr_err("Array Member %d:\n", i); 1726 1727 ipr_log_vpd(&array_entry->vpd); 1728 1729 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); 1730 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, 1731 "Expected Location"); 1732 1733 ipr_err_separator; 1734 1735 if (i == 9) 1736 array_entry = error->array_member2; 1737 else 1738 array_entry++; 1739 } 1740 } 1741 1742 /** 1743 * ipr_log_hex_data - Log additional hex IOA error data. 1744 * @ioa_cfg: ioa config struct 1745 * @data: IOA error data 1746 * @len: data length 1747 * 1748 * Return value: 1749 * none 1750 **/ 1751 static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len) 1752 { 1753 int i; 1754 1755 if (len == 0) 1756 return; 1757 1758 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL) 1759 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP); 1760 1761 for (i = 0; i < len / 4; i += 4) { 1762 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 1763 be32_to_cpu(data[i]), 1764 be32_to_cpu(data[i+1]), 1765 be32_to_cpu(data[i+2]), 1766 be32_to_cpu(data[i+3])); 1767 } 1768 } 1769 1770 /** 1771 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error. 1772 * @ioa_cfg: ioa config struct 1773 * @hostrcb: hostrcb struct 1774 * 1775 * Return value: 1776 * none 1777 **/ 1778 static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, 1779 struct ipr_hostrcb *hostrcb) 1780 { 1781 struct ipr_hostrcb_type_17_error *error; 1782 1783 if (ioa_cfg->sis64) 1784 error = &hostrcb->hcam.u.error64.u.type_17_error; 1785 else 1786 error = &hostrcb->hcam.u.error.u.type_17_error; 1787 1788 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1789 strim(error->failure_reason); 1790 1791 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, 1792 be32_to_cpu(hostrcb->hcam.u.error.prc)); 1793 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd); 1794 ipr_log_hex_data(ioa_cfg, error->data, 1795 be32_to_cpu(hostrcb->hcam.length) - 1796 (offsetof(struct ipr_hostrcb_error, u) + 1797 offsetof(struct ipr_hostrcb_type_17_error, data))); 1798 } 1799 1800 /** 1801 * ipr_log_dual_ioa_error - Log a dual adapter error. 1802 * @ioa_cfg: ioa config struct 1803 * @hostrcb: hostrcb struct 1804 * 1805 * Return value: 1806 * none 1807 **/ 1808 static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, 1809 struct ipr_hostrcb *hostrcb) 1810 { 1811 struct ipr_hostrcb_type_07_error *error; 1812 1813 error = &hostrcb->hcam.u.error.u.type_07_error; 1814 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1815 strim(error->failure_reason); 1816 1817 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, 1818 be32_to_cpu(hostrcb->hcam.u.error.prc)); 1819 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd); 1820 ipr_log_hex_data(ioa_cfg, error->data, 1821 be32_to_cpu(hostrcb->hcam.length) - 1822 (offsetof(struct ipr_hostrcb_error, u) + 1823 offsetof(struct ipr_hostrcb_type_07_error, data))); 1824 } 1825 1826 static const struct { 1827 u8 active; 1828 char *desc; 1829 } path_active_desc[] = { 1830 { IPR_PATH_NO_INFO, "Path" }, 1831 { IPR_PATH_ACTIVE, "Active path" }, 1832 { IPR_PATH_NOT_ACTIVE, "Inactive path" } 1833 }; 1834 1835 static const struct { 1836 u8 state; 1837 char *desc; 1838 } path_state_desc[] = { 1839 { IPR_PATH_STATE_NO_INFO, "has no path state information available" }, 1840 { IPR_PATH_HEALTHY, "is healthy" }, 1841 { IPR_PATH_DEGRADED, "is degraded" }, 1842 { IPR_PATH_FAILED, "is failed" } 1843 }; 1844 1845 /** 1846 * ipr_log_fabric_path - Log a fabric path error 1847 * @hostrcb: hostrcb struct 1848 * @fabric: fabric descriptor 1849 * 1850 * Return value: 1851 * none 1852 **/ 1853 static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb, 1854 struct ipr_hostrcb_fabric_desc *fabric) 1855 { 1856 int i, j; 1857 u8 path_state = fabric->path_state; 1858 u8 active = path_state & IPR_PATH_ACTIVE_MASK; 1859 u8 state = path_state & IPR_PATH_STATE_MASK; 1860 1861 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { 1862 if (path_active_desc[i].active != active) 1863 continue; 1864 1865 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { 1866 if (path_state_desc[j].state != state) 1867 continue; 1868 1869 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) { 1870 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n", 1871 path_active_desc[i].desc, path_state_desc[j].desc, 1872 fabric->ioa_port); 1873 } else if (fabric->cascaded_expander == 0xff) { 1874 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n", 1875 path_active_desc[i].desc, path_state_desc[j].desc, 1876 fabric->ioa_port, fabric->phy); 1877 } else if (fabric->phy == 0xff) { 1878 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n", 1879 path_active_desc[i].desc, path_state_desc[j].desc, 1880 fabric->ioa_port, fabric->cascaded_expander); 1881 } else { 1882 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n", 1883 path_active_desc[i].desc, path_state_desc[j].desc, 1884 fabric->ioa_port, fabric->cascaded_expander, fabric->phy); 1885 } 1886 return; 1887 } 1888 } 1889 1890 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state, 1891 fabric->ioa_port, fabric->cascaded_expander, fabric->phy); 1892 } 1893 1894 /** 1895 * ipr_log64_fabric_path - Log a fabric path error 1896 * @hostrcb: hostrcb struct 1897 * @fabric: fabric descriptor 1898 * 1899 * Return value: 1900 * none 1901 **/ 1902 static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb, 1903 struct ipr_hostrcb64_fabric_desc *fabric) 1904 { 1905 int i, j; 1906 u8 path_state = fabric->path_state; 1907 u8 active = path_state & IPR_PATH_ACTIVE_MASK; 1908 u8 state = path_state & IPR_PATH_STATE_MASK; 1909 char buffer[IPR_MAX_RES_PATH_LENGTH]; 1910 1911 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { 1912 if (path_active_desc[i].active != active) 1913 continue; 1914 1915 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { 1916 if (path_state_desc[j].state != state) 1917 continue; 1918 1919 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n", 1920 path_active_desc[i].desc, path_state_desc[j].desc, 1921 ipr_format_resource_path(&fabric->res_path[0], &buffer[0])); 1922 return; 1923 } 1924 } 1925 1926 ipr_err("Path state=%02X Resource Path=%s\n", path_state, 1927 ipr_format_resource_path(&fabric->res_path[0], &buffer[0])); 1928 } 1929 1930 static const struct { 1931 u8 type; 1932 char *desc; 1933 } path_type_desc[] = { 1934 { IPR_PATH_CFG_IOA_PORT, "IOA port" }, 1935 { IPR_PATH_CFG_EXP_PORT, "Expander port" }, 1936 { IPR_PATH_CFG_DEVICE_PORT, "Device port" }, 1937 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" } 1938 }; 1939 1940 static const struct { 1941 u8 status; 1942 char *desc; 1943 } path_status_desc[] = { 1944 { IPR_PATH_CFG_NO_PROB, "Functional" }, 1945 { IPR_PATH_CFG_DEGRADED, "Degraded" }, 1946 { IPR_PATH_CFG_FAILED, "Failed" }, 1947 { IPR_PATH_CFG_SUSPECT, "Suspect" }, 1948 { IPR_PATH_NOT_DETECTED, "Missing" }, 1949 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" } 1950 }; 1951 1952 static const char *link_rate[] = { 1953 "unknown", 1954 "disabled", 1955 "phy reset problem", 1956 "spinup hold", 1957 "port selector", 1958 "unknown", 1959 "unknown", 1960 "unknown", 1961 "1.5Gbps", 1962 "3.0Gbps", 1963 "unknown", 1964 "unknown", 1965 "unknown", 1966 "unknown", 1967 "unknown", 1968 "unknown" 1969 }; 1970 1971 /** 1972 * ipr_log_path_elem - Log a fabric path element. 1973 * @hostrcb: hostrcb struct 1974 * @cfg: fabric path element struct 1975 * 1976 * Return value: 1977 * none 1978 **/ 1979 static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb, 1980 struct ipr_hostrcb_config_element *cfg) 1981 { 1982 int i, j; 1983 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; 1984 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; 1985 1986 if (type == IPR_PATH_CFG_NOT_EXIST) 1987 return; 1988 1989 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { 1990 if (path_type_desc[i].type != type) 1991 continue; 1992 1993 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { 1994 if (path_status_desc[j].status != status) 1995 continue; 1996 1997 if (type == IPR_PATH_CFG_IOA_PORT) { 1998 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n", 1999 path_status_desc[j].desc, path_type_desc[i].desc, 2000 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2001 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2002 } else { 2003 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) { 2004 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n", 2005 path_status_desc[j].desc, path_type_desc[i].desc, 2006 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2007 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2008 } else if (cfg->cascaded_expander == 0xff) { 2009 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, " 2010 "WWN=%08X%08X\n", path_status_desc[j].desc, 2011 path_type_desc[i].desc, cfg->phy, 2012 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2013 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2014 } else if (cfg->phy == 0xff) { 2015 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, " 2016 "WWN=%08X%08X\n", path_status_desc[j].desc, 2017 path_type_desc[i].desc, cfg->cascaded_expander, 2018 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2019 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2020 } else { 2021 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s " 2022 "WWN=%08X%08X\n", path_status_desc[j].desc, 2023 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy, 2024 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2025 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2026 } 2027 } 2028 return; 2029 } 2030 } 2031 2032 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s " 2033 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy, 2034 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2035 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2036 } 2037 2038 /** 2039 * ipr_log64_path_elem - Log a fabric path element. 2040 * @hostrcb: hostrcb struct 2041 * @cfg: fabric path element struct 2042 * 2043 * Return value: 2044 * none 2045 **/ 2046 static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb, 2047 struct ipr_hostrcb64_config_element *cfg) 2048 { 2049 int i, j; 2050 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK; 2051 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; 2052 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; 2053 char buffer[IPR_MAX_RES_PATH_LENGTH]; 2054 2055 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64) 2056 return; 2057 2058 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { 2059 if (path_type_desc[i].type != type) 2060 continue; 2061 2062 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { 2063 if (path_status_desc[j].status != status) 2064 continue; 2065 2066 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n", 2067 path_status_desc[j].desc, path_type_desc[i].desc, 2068 ipr_format_resource_path(&cfg->res_path[0], &buffer[0]), 2069 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2070 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2071 return; 2072 } 2073 } 2074 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s " 2075 "WWN=%08X%08X\n", cfg->type_status, 2076 ipr_format_resource_path(&cfg->res_path[0], &buffer[0]), 2077 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2078 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2079 } 2080 2081 /** 2082 * ipr_log_fabric_error - Log a fabric error. 2083 * @ioa_cfg: ioa config struct 2084 * @hostrcb: hostrcb struct 2085 * 2086 * Return value: 2087 * none 2088 **/ 2089 static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg, 2090 struct ipr_hostrcb *hostrcb) 2091 { 2092 struct ipr_hostrcb_type_20_error *error; 2093 struct ipr_hostrcb_fabric_desc *fabric; 2094 struct ipr_hostrcb_config_element *cfg; 2095 int i, add_len; 2096 2097 error = &hostrcb->hcam.u.error.u.type_20_error; 2098 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 2099 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); 2100 2101 add_len = be32_to_cpu(hostrcb->hcam.length) - 2102 (offsetof(struct ipr_hostrcb_error, u) + 2103 offsetof(struct ipr_hostrcb_type_20_error, desc)); 2104 2105 for (i = 0, fabric = error->desc; i < error->num_entries; i++) { 2106 ipr_log_fabric_path(hostrcb, fabric); 2107 for_each_fabric_cfg(fabric, cfg) 2108 ipr_log_path_elem(hostrcb, cfg); 2109 2110 add_len -= be16_to_cpu(fabric->length); 2111 fabric = (struct ipr_hostrcb_fabric_desc *) 2112 ((unsigned long)fabric + be16_to_cpu(fabric->length)); 2113 } 2114 2115 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len); 2116 } 2117 2118 /** 2119 * ipr_log_sis64_array_error - Log a sis64 array error. 2120 * @ioa_cfg: ioa config struct 2121 * @hostrcb: hostrcb struct 2122 * 2123 * Return value: 2124 * none 2125 **/ 2126 static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg, 2127 struct ipr_hostrcb *hostrcb) 2128 { 2129 int i, num_entries; 2130 struct ipr_hostrcb_type_24_error *error; 2131 struct ipr_hostrcb64_array_data_entry *array_entry; 2132 char buffer[IPR_MAX_RES_PATH_LENGTH]; 2133 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 2134 2135 error = &hostrcb->hcam.u.error64.u.type_24_error; 2136 2137 ipr_err_separator; 2138 2139 ipr_err("RAID %s Array Configuration: %s\n", 2140 error->protection_level, 2141 ipr_format_resource_path(&error->last_res_path[0], &buffer[0])); 2142 2143 ipr_err_separator; 2144 2145 array_entry = error->array_member; 2146 num_entries = min_t(u32, be32_to_cpu(error->num_entries), 2147 sizeof(error->array_member)); 2148 2149 for (i = 0; i < num_entries; i++, array_entry++) { 2150 2151 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 2152 continue; 2153 2154 if (error->exposed_mode_adn == i) 2155 ipr_err("Exposed Array Member %d:\n", i); 2156 else 2157 ipr_err("Array Member %d:\n", i); 2158 2159 ipr_err("Array Member %d:\n", i); 2160 ipr_log_ext_vpd(&array_entry->vpd); 2161 ipr_err("Current Location: %s", 2162 ipr_format_resource_path(&array_entry->res_path[0], &buffer[0])); 2163 ipr_err("Expected Location: %s", 2164 ipr_format_resource_path(&array_entry->expected_res_path[0], &buffer[0])); 2165 2166 ipr_err_separator; 2167 } 2168 } 2169 2170 /** 2171 * ipr_log_sis64_fabric_error - Log a sis64 fabric error. 2172 * @ioa_cfg: ioa config struct 2173 * @hostrcb: hostrcb struct 2174 * 2175 * Return value: 2176 * none 2177 **/ 2178 static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg, 2179 struct ipr_hostrcb *hostrcb) 2180 { 2181 struct ipr_hostrcb_type_30_error *error; 2182 struct ipr_hostrcb64_fabric_desc *fabric; 2183 struct ipr_hostrcb64_config_element *cfg; 2184 int i, add_len; 2185 2186 error = &hostrcb->hcam.u.error64.u.type_30_error; 2187 2188 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 2189 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); 2190 2191 add_len = be32_to_cpu(hostrcb->hcam.length) - 2192 (offsetof(struct ipr_hostrcb64_error, u) + 2193 offsetof(struct ipr_hostrcb_type_30_error, desc)); 2194 2195 for (i = 0, fabric = error->desc; i < error->num_entries; i++) { 2196 ipr_log64_fabric_path(hostrcb, fabric); 2197 for_each_fabric_cfg(fabric, cfg) 2198 ipr_log64_path_elem(hostrcb, cfg); 2199 2200 add_len -= be16_to_cpu(fabric->length); 2201 fabric = (struct ipr_hostrcb64_fabric_desc *) 2202 ((unsigned long)fabric + be16_to_cpu(fabric->length)); 2203 } 2204 2205 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len); 2206 } 2207 2208 /** 2209 * ipr_log_generic_error - Log an adapter error. 2210 * @ioa_cfg: ioa config struct 2211 * @hostrcb: hostrcb struct 2212 * 2213 * Return value: 2214 * none 2215 **/ 2216 static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg, 2217 struct ipr_hostrcb *hostrcb) 2218 { 2219 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data, 2220 be32_to_cpu(hostrcb->hcam.length)); 2221 } 2222 2223 /** 2224 * ipr_get_error - Find the specfied IOASC in the ipr_error_table. 2225 * @ioasc: IOASC 2226 * 2227 * This function will return the index of into the ipr_error_table 2228 * for the specified IOASC. If the IOASC is not in the table, 2229 * 0 will be returned, which points to the entry used for unknown errors. 2230 * 2231 * Return value: 2232 * index into the ipr_error_table 2233 **/ 2234 static u32 ipr_get_error(u32 ioasc) 2235 { 2236 int i; 2237 2238 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++) 2239 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK)) 2240 return i; 2241 2242 return 0; 2243 } 2244 2245 /** 2246 * ipr_handle_log_data - Log an adapter error. 2247 * @ioa_cfg: ioa config struct 2248 * @hostrcb: hostrcb struct 2249 * 2250 * This function logs an adapter error to the system. 2251 * 2252 * Return value: 2253 * none 2254 **/ 2255 static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg, 2256 struct ipr_hostrcb *hostrcb) 2257 { 2258 u32 ioasc; 2259 int error_index; 2260 2261 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY) 2262 return; 2263 2264 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST) 2265 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n"); 2266 2267 if (ioa_cfg->sis64) 2268 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); 2269 else 2270 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 2271 2272 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET || 2273 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) { 2274 /* Tell the midlayer we had a bus reset so it will handle the UA properly */ 2275 scsi_report_bus_reset(ioa_cfg->host, 2276 hostrcb->hcam.u.error.fd_res_addr.bus); 2277 } 2278 2279 error_index = ipr_get_error(ioasc); 2280 2281 if (!ipr_error_table[error_index].log_hcam) 2282 return; 2283 2284 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error); 2285 2286 /* Set indication we have logged an error */ 2287 ioa_cfg->errors_logged++; 2288 2289 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam) 2290 return; 2291 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw)) 2292 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw)); 2293 2294 switch (hostrcb->hcam.overlay_id) { 2295 case IPR_HOST_RCB_OVERLAY_ID_2: 2296 ipr_log_cache_error(ioa_cfg, hostrcb); 2297 break; 2298 case IPR_HOST_RCB_OVERLAY_ID_3: 2299 ipr_log_config_error(ioa_cfg, hostrcb); 2300 break; 2301 case IPR_HOST_RCB_OVERLAY_ID_4: 2302 case IPR_HOST_RCB_OVERLAY_ID_6: 2303 ipr_log_array_error(ioa_cfg, hostrcb); 2304 break; 2305 case IPR_HOST_RCB_OVERLAY_ID_7: 2306 ipr_log_dual_ioa_error(ioa_cfg, hostrcb); 2307 break; 2308 case IPR_HOST_RCB_OVERLAY_ID_12: 2309 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb); 2310 break; 2311 case IPR_HOST_RCB_OVERLAY_ID_13: 2312 ipr_log_enhanced_config_error(ioa_cfg, hostrcb); 2313 break; 2314 case IPR_HOST_RCB_OVERLAY_ID_14: 2315 case IPR_HOST_RCB_OVERLAY_ID_16: 2316 ipr_log_enhanced_array_error(ioa_cfg, hostrcb); 2317 break; 2318 case IPR_HOST_RCB_OVERLAY_ID_17: 2319 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb); 2320 break; 2321 case IPR_HOST_RCB_OVERLAY_ID_20: 2322 ipr_log_fabric_error(ioa_cfg, hostrcb); 2323 break; 2324 case IPR_HOST_RCB_OVERLAY_ID_23: 2325 ipr_log_sis64_config_error(ioa_cfg, hostrcb); 2326 break; 2327 case IPR_HOST_RCB_OVERLAY_ID_24: 2328 case IPR_HOST_RCB_OVERLAY_ID_26: 2329 ipr_log_sis64_array_error(ioa_cfg, hostrcb); 2330 break; 2331 case IPR_HOST_RCB_OVERLAY_ID_30: 2332 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb); 2333 break; 2334 case IPR_HOST_RCB_OVERLAY_ID_1: 2335 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT: 2336 default: 2337 ipr_log_generic_error(ioa_cfg, hostrcb); 2338 break; 2339 } 2340 } 2341 2342 /** 2343 * ipr_process_error - Op done function for an adapter error log. 2344 * @ipr_cmd: ipr command struct 2345 * 2346 * This function is the op done function for an error log host 2347 * controlled async from the adapter. It will log the error and 2348 * send the HCAM back to the adapter. 2349 * 2350 * Return value: 2351 * none 2352 **/ 2353 static void ipr_process_error(struct ipr_cmnd *ipr_cmd) 2354 { 2355 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 2356 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; 2357 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 2358 u32 fd_ioasc; 2359 2360 if (ioa_cfg->sis64) 2361 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); 2362 else 2363 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 2364 2365 list_del(&hostrcb->queue); 2366 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 2367 2368 if (!ioasc) { 2369 ipr_handle_log_data(ioa_cfg, hostrcb); 2370 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED) 2371 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); 2372 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) { 2373 dev_err(&ioa_cfg->pdev->dev, 2374 "Host RCB failed with IOASC: 0x%08X\n", ioasc); 2375 } 2376 2377 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 2378 } 2379 2380 /** 2381 * ipr_timeout - An internally generated op has timed out. 2382 * @ipr_cmd: ipr command struct 2383 * 2384 * This function blocks host requests and initiates an 2385 * adapter reset. 2386 * 2387 * Return value: 2388 * none 2389 **/ 2390 static void ipr_timeout(struct ipr_cmnd *ipr_cmd) 2391 { 2392 unsigned long lock_flags = 0; 2393 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 2394 2395 ENTER; 2396 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2397 2398 ioa_cfg->errors_logged++; 2399 dev_err(&ioa_cfg->pdev->dev, 2400 "Adapter being reset due to command timeout.\n"); 2401 2402 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 2403 ioa_cfg->sdt_state = GET_DUMP; 2404 2405 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) 2406 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2407 2408 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2409 LEAVE; 2410 } 2411 2412 /** 2413 * ipr_oper_timeout - Adapter timed out transitioning to operational 2414 * @ipr_cmd: ipr command struct 2415 * 2416 * This function blocks host requests and initiates an 2417 * adapter reset. 2418 * 2419 * Return value: 2420 * none 2421 **/ 2422 static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd) 2423 { 2424 unsigned long lock_flags = 0; 2425 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 2426 2427 ENTER; 2428 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2429 2430 ioa_cfg->errors_logged++; 2431 dev_err(&ioa_cfg->pdev->dev, 2432 "Adapter timed out transitioning to operational.\n"); 2433 2434 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 2435 ioa_cfg->sdt_state = GET_DUMP; 2436 2437 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) { 2438 if (ipr_fastfail) 2439 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; 2440 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2441 } 2442 2443 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2444 LEAVE; 2445 } 2446 2447 /** 2448 * ipr_reset_reload - Reset/Reload the IOA 2449 * @ioa_cfg: ioa config struct 2450 * @shutdown_type: shutdown type 2451 * 2452 * This function resets the adapter and re-initializes it. 2453 * This function assumes that all new host commands have been stopped. 2454 * Return value: 2455 * SUCCESS / FAILED 2456 **/ 2457 static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg, 2458 enum ipr_shutdown_type shutdown_type) 2459 { 2460 if (!ioa_cfg->in_reset_reload) 2461 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 2462 2463 spin_unlock_irq(ioa_cfg->host->host_lock); 2464 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2465 spin_lock_irq(ioa_cfg->host->host_lock); 2466 2467 /* If we got hit with a host reset while we were already resetting 2468 the adapter for some reason, and the reset failed. */ 2469 if (ioa_cfg->ioa_is_dead) { 2470 ipr_trace; 2471 return FAILED; 2472 } 2473 2474 return SUCCESS; 2475 } 2476 2477 /** 2478 * ipr_find_ses_entry - Find matching SES in SES table 2479 * @res: resource entry struct of SES 2480 * 2481 * Return value: 2482 * pointer to SES table entry / NULL on failure 2483 **/ 2484 static const struct ipr_ses_table_entry * 2485 ipr_find_ses_entry(struct ipr_resource_entry *res) 2486 { 2487 int i, j, matches; 2488 struct ipr_std_inq_vpids *vpids; 2489 const struct ipr_ses_table_entry *ste = ipr_ses_table; 2490 2491 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) { 2492 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) { 2493 if (ste->compare_product_id_byte[j] == 'X') { 2494 vpids = &res->std_inq_data.vpids; 2495 if (vpids->product_id[j] == ste->product_id[j]) 2496 matches++; 2497 else 2498 break; 2499 } else 2500 matches++; 2501 } 2502 2503 if (matches == IPR_PROD_ID_LEN) 2504 return ste; 2505 } 2506 2507 return NULL; 2508 } 2509 2510 /** 2511 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus 2512 * @ioa_cfg: ioa config struct 2513 * @bus: SCSI bus 2514 * @bus_width: bus width 2515 * 2516 * Return value: 2517 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz 2518 * For a 2-byte wide SCSI bus, the maximum transfer speed is 2519 * twice the maximum transfer rate (e.g. for a wide enabled bus, 2520 * max 160MHz = max 320MB/sec). 2521 **/ 2522 static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width) 2523 { 2524 struct ipr_resource_entry *res; 2525 const struct ipr_ses_table_entry *ste; 2526 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width); 2527 2528 /* Loop through each config table entry in the config table buffer */ 2529 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 2530 if (!(IPR_IS_SES_DEVICE(res->std_inq_data))) 2531 continue; 2532 2533 if (bus != res->bus) 2534 continue; 2535 2536 if (!(ste = ipr_find_ses_entry(res))) 2537 continue; 2538 2539 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8); 2540 } 2541 2542 return max_xfer_rate; 2543 } 2544 2545 /** 2546 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA 2547 * @ioa_cfg: ioa config struct 2548 * @max_delay: max delay in micro-seconds to wait 2549 * 2550 * Waits for an IODEBUG ACK from the IOA, doing busy looping. 2551 * 2552 * Return value: 2553 * 0 on success / other on failure 2554 **/ 2555 static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay) 2556 { 2557 volatile u32 pcii_reg; 2558 int delay = 1; 2559 2560 /* Read interrupt reg until IOA signals IO Debug Acknowledge */ 2561 while (delay < max_delay) { 2562 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 2563 2564 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE) 2565 return 0; 2566 2567 /* udelay cannot be used if delay is more than a few milliseconds */ 2568 if ((delay / 1000) > MAX_UDELAY_MS) 2569 mdelay(delay / 1000); 2570 else 2571 udelay(delay); 2572 2573 delay += delay; 2574 } 2575 return -EIO; 2576 } 2577 2578 /** 2579 * ipr_get_sis64_dump_data_section - Dump IOA memory 2580 * @ioa_cfg: ioa config struct 2581 * @start_addr: adapter address to dump 2582 * @dest: destination kernel buffer 2583 * @length_in_words: length to dump in 4 byte words 2584 * 2585 * Return value: 2586 * 0 on success 2587 **/ 2588 static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg, 2589 u32 start_addr, 2590 __be32 *dest, u32 length_in_words) 2591 { 2592 int i; 2593 2594 for (i = 0; i < length_in_words; i++) { 2595 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg); 2596 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg)); 2597 dest++; 2598 } 2599 2600 return 0; 2601 } 2602 2603 /** 2604 * ipr_get_ldump_data_section - Dump IOA memory 2605 * @ioa_cfg: ioa config struct 2606 * @start_addr: adapter address to dump 2607 * @dest: destination kernel buffer 2608 * @length_in_words: length to dump in 4 byte words 2609 * 2610 * Return value: 2611 * 0 on success / -EIO on failure 2612 **/ 2613 static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg, 2614 u32 start_addr, 2615 __be32 *dest, u32 length_in_words) 2616 { 2617 volatile u32 temp_pcii_reg; 2618 int i, delay = 0; 2619 2620 if (ioa_cfg->sis64) 2621 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr, 2622 dest, length_in_words); 2623 2624 /* Write IOA interrupt reg starting LDUMP state */ 2625 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT), 2626 ioa_cfg->regs.set_uproc_interrupt_reg32); 2627 2628 /* Wait for IO debug acknowledge */ 2629 if (ipr_wait_iodbg_ack(ioa_cfg, 2630 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) { 2631 dev_err(&ioa_cfg->pdev->dev, 2632 "IOA dump long data transfer timeout\n"); 2633 return -EIO; 2634 } 2635 2636 /* Signal LDUMP interlocked - clear IO debug ack */ 2637 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2638 ioa_cfg->regs.clr_interrupt_reg); 2639 2640 /* Write Mailbox with starting address */ 2641 writel(start_addr, ioa_cfg->ioa_mailbox); 2642 2643 /* Signal address valid - clear IOA Reset alert */ 2644 writel(IPR_UPROCI_RESET_ALERT, 2645 ioa_cfg->regs.clr_uproc_interrupt_reg32); 2646 2647 for (i = 0; i < length_in_words; i++) { 2648 /* Wait for IO debug acknowledge */ 2649 if (ipr_wait_iodbg_ack(ioa_cfg, 2650 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) { 2651 dev_err(&ioa_cfg->pdev->dev, 2652 "IOA dump short data transfer timeout\n"); 2653 return -EIO; 2654 } 2655 2656 /* Read data from mailbox and increment destination pointer */ 2657 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox)); 2658 dest++; 2659 2660 /* For all but the last word of data, signal data received */ 2661 if (i < (length_in_words - 1)) { 2662 /* Signal dump data received - Clear IO debug Ack */ 2663 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2664 ioa_cfg->regs.clr_interrupt_reg); 2665 } 2666 } 2667 2668 /* Signal end of block transfer. Set reset alert then clear IO debug ack */ 2669 writel(IPR_UPROCI_RESET_ALERT, 2670 ioa_cfg->regs.set_uproc_interrupt_reg32); 2671 2672 writel(IPR_UPROCI_IO_DEBUG_ALERT, 2673 ioa_cfg->regs.clr_uproc_interrupt_reg32); 2674 2675 /* Signal dump data received - Clear IO debug Ack */ 2676 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2677 ioa_cfg->regs.clr_interrupt_reg); 2678 2679 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */ 2680 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) { 2681 temp_pcii_reg = 2682 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32); 2683 2684 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT)) 2685 return 0; 2686 2687 udelay(10); 2688 delay += 10; 2689 } 2690 2691 return 0; 2692 } 2693 2694 #ifdef CONFIG_SCSI_IPR_DUMP 2695 /** 2696 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer 2697 * @ioa_cfg: ioa config struct 2698 * @pci_address: adapter address 2699 * @length: length of data to copy 2700 * 2701 * Copy data from PCI adapter to kernel buffer. 2702 * Note: length MUST be a 4 byte multiple 2703 * Return value: 2704 * 0 on success / other on failure 2705 **/ 2706 static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg, 2707 unsigned long pci_address, u32 length) 2708 { 2709 int bytes_copied = 0; 2710 int cur_len, rc, rem_len, rem_page_len; 2711 __be32 *page; 2712 unsigned long lock_flags = 0; 2713 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump; 2714 2715 while (bytes_copied < length && 2716 (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) { 2717 if (ioa_dump->page_offset >= PAGE_SIZE || 2718 ioa_dump->page_offset == 0) { 2719 page = (__be32 *)__get_free_page(GFP_ATOMIC); 2720 2721 if (!page) { 2722 ipr_trace; 2723 return bytes_copied; 2724 } 2725 2726 ioa_dump->page_offset = 0; 2727 ioa_dump->ioa_data[ioa_dump->next_page_index] = page; 2728 ioa_dump->next_page_index++; 2729 } else 2730 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1]; 2731 2732 rem_len = length - bytes_copied; 2733 rem_page_len = PAGE_SIZE - ioa_dump->page_offset; 2734 cur_len = min(rem_len, rem_page_len); 2735 2736 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2737 if (ioa_cfg->sdt_state == ABORT_DUMP) { 2738 rc = -EIO; 2739 } else { 2740 rc = ipr_get_ldump_data_section(ioa_cfg, 2741 pci_address + bytes_copied, 2742 &page[ioa_dump->page_offset / 4], 2743 (cur_len / sizeof(u32))); 2744 } 2745 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2746 2747 if (!rc) { 2748 ioa_dump->page_offset += cur_len; 2749 bytes_copied += cur_len; 2750 } else { 2751 ipr_trace; 2752 break; 2753 } 2754 schedule(); 2755 } 2756 2757 return bytes_copied; 2758 } 2759 2760 /** 2761 * ipr_init_dump_entry_hdr - Initialize a dump entry header. 2762 * @hdr: dump entry header struct 2763 * 2764 * Return value: 2765 * nothing 2766 **/ 2767 static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr) 2768 { 2769 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER; 2770 hdr->num_elems = 1; 2771 hdr->offset = sizeof(*hdr); 2772 hdr->status = IPR_DUMP_STATUS_SUCCESS; 2773 } 2774 2775 /** 2776 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump. 2777 * @ioa_cfg: ioa config struct 2778 * @driver_dump: driver dump struct 2779 * 2780 * Return value: 2781 * nothing 2782 **/ 2783 static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg, 2784 struct ipr_driver_dump *driver_dump) 2785 { 2786 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 2787 2788 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr); 2789 driver_dump->ioa_type_entry.hdr.len = 2790 sizeof(struct ipr_dump_ioa_type_entry) - 2791 sizeof(struct ipr_dump_entry_header); 2792 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2793 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID; 2794 driver_dump->ioa_type_entry.type = ioa_cfg->type; 2795 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) | 2796 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) | 2797 ucode_vpd->minor_release[1]; 2798 driver_dump->hdr.num_entries++; 2799 } 2800 2801 /** 2802 * ipr_dump_version_data - Fill in the driver version in the dump. 2803 * @ioa_cfg: ioa config struct 2804 * @driver_dump: driver dump struct 2805 * 2806 * Return value: 2807 * nothing 2808 **/ 2809 static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg, 2810 struct ipr_driver_dump *driver_dump) 2811 { 2812 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr); 2813 driver_dump->version_entry.hdr.len = 2814 sizeof(struct ipr_dump_version_entry) - 2815 sizeof(struct ipr_dump_entry_header); 2816 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; 2817 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID; 2818 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION); 2819 driver_dump->hdr.num_entries++; 2820 } 2821 2822 /** 2823 * ipr_dump_trace_data - Fill in the IOA trace in the dump. 2824 * @ioa_cfg: ioa config struct 2825 * @driver_dump: driver dump struct 2826 * 2827 * Return value: 2828 * nothing 2829 **/ 2830 static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg, 2831 struct ipr_driver_dump *driver_dump) 2832 { 2833 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr); 2834 driver_dump->trace_entry.hdr.len = 2835 sizeof(struct ipr_dump_trace_entry) - 2836 sizeof(struct ipr_dump_entry_header); 2837 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2838 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID; 2839 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE); 2840 driver_dump->hdr.num_entries++; 2841 } 2842 2843 /** 2844 * ipr_dump_location_data - Fill in the IOA location in the dump. 2845 * @ioa_cfg: ioa config struct 2846 * @driver_dump: driver dump struct 2847 * 2848 * Return value: 2849 * nothing 2850 **/ 2851 static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg, 2852 struct ipr_driver_dump *driver_dump) 2853 { 2854 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr); 2855 driver_dump->location_entry.hdr.len = 2856 sizeof(struct ipr_dump_location_entry) - 2857 sizeof(struct ipr_dump_entry_header); 2858 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; 2859 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID; 2860 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev)); 2861 driver_dump->hdr.num_entries++; 2862 } 2863 2864 /** 2865 * ipr_get_ioa_dump - Perform a dump of the driver and adapter. 2866 * @ioa_cfg: ioa config struct 2867 * @dump: dump struct 2868 * 2869 * Return value: 2870 * nothing 2871 **/ 2872 static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump) 2873 { 2874 unsigned long start_addr, sdt_word; 2875 unsigned long lock_flags = 0; 2876 struct ipr_driver_dump *driver_dump = &dump->driver_dump; 2877 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump; 2878 u32 num_entries, start_off, end_off; 2879 u32 bytes_to_copy, bytes_copied, rc; 2880 struct ipr_sdt *sdt; 2881 int valid = 1; 2882 int i; 2883 2884 ENTER; 2885 2886 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2887 2888 if (ioa_cfg->sdt_state != GET_DUMP) { 2889 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2890 return; 2891 } 2892 2893 start_addr = readl(ioa_cfg->ioa_mailbox); 2894 2895 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) { 2896 dev_err(&ioa_cfg->pdev->dev, 2897 "Invalid dump table format: %lx\n", start_addr); 2898 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2899 return; 2900 } 2901 2902 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n"); 2903 2904 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER; 2905 2906 /* Initialize the overall dump header */ 2907 driver_dump->hdr.len = sizeof(struct ipr_driver_dump); 2908 driver_dump->hdr.num_entries = 1; 2909 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header); 2910 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS; 2911 driver_dump->hdr.os = IPR_DUMP_OS_LINUX; 2912 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME; 2913 2914 ipr_dump_version_data(ioa_cfg, driver_dump); 2915 ipr_dump_location_data(ioa_cfg, driver_dump); 2916 ipr_dump_ioa_type_data(ioa_cfg, driver_dump); 2917 ipr_dump_trace_data(ioa_cfg, driver_dump); 2918 2919 /* Update dump_header */ 2920 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header); 2921 2922 /* IOA Dump entry */ 2923 ipr_init_dump_entry_hdr(&ioa_dump->hdr); 2924 ioa_dump->hdr.len = 0; 2925 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2926 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID; 2927 2928 /* First entries in sdt are actually a list of dump addresses and 2929 lengths to gather the real dump data. sdt represents the pointer 2930 to the ioa generated dump table. Dump data will be extracted based 2931 on entries in this table */ 2932 sdt = &ioa_dump->sdt; 2933 2934 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt, 2935 sizeof(struct ipr_sdt) / sizeof(__be32)); 2936 2937 /* Smart Dump table is ready to use and the first entry is valid */ 2938 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && 2939 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { 2940 dev_err(&ioa_cfg->pdev->dev, 2941 "Dump of IOA failed. Dump table not valid: %d, %X.\n", 2942 rc, be32_to_cpu(sdt->hdr.state)); 2943 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED; 2944 ioa_cfg->sdt_state = DUMP_OBTAINED; 2945 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2946 return; 2947 } 2948 2949 num_entries = be32_to_cpu(sdt->hdr.num_entries_used); 2950 2951 if (num_entries > IPR_NUM_SDT_ENTRIES) 2952 num_entries = IPR_NUM_SDT_ENTRIES; 2953 2954 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2955 2956 for (i = 0; i < num_entries; i++) { 2957 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) { 2958 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; 2959 break; 2960 } 2961 2962 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) { 2963 sdt_word = be32_to_cpu(sdt->entry[i].start_token); 2964 if (ioa_cfg->sis64) 2965 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token); 2966 else { 2967 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK; 2968 end_off = be32_to_cpu(sdt->entry[i].end_token); 2969 2970 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) 2971 bytes_to_copy = end_off - start_off; 2972 else 2973 valid = 0; 2974 } 2975 if (valid) { 2976 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) { 2977 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY; 2978 continue; 2979 } 2980 2981 /* Copy data from adapter to driver buffers */ 2982 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word, 2983 bytes_to_copy); 2984 2985 ioa_dump->hdr.len += bytes_copied; 2986 2987 if (bytes_copied != bytes_to_copy) { 2988 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; 2989 break; 2990 } 2991 } 2992 } 2993 } 2994 2995 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n"); 2996 2997 /* Update dump_header */ 2998 driver_dump->hdr.len += ioa_dump->hdr.len; 2999 wmb(); 3000 ioa_cfg->sdt_state = DUMP_OBTAINED; 3001 LEAVE; 3002 } 3003 3004 #else 3005 #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0) 3006 #endif 3007 3008 /** 3009 * ipr_release_dump - Free adapter dump memory 3010 * @kref: kref struct 3011 * 3012 * Return value: 3013 * nothing 3014 **/ 3015 static void ipr_release_dump(struct kref *kref) 3016 { 3017 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref); 3018 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg; 3019 unsigned long lock_flags = 0; 3020 int i; 3021 3022 ENTER; 3023 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3024 ioa_cfg->dump = NULL; 3025 ioa_cfg->sdt_state = INACTIVE; 3026 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3027 3028 for (i = 0; i < dump->ioa_dump.next_page_index; i++) 3029 free_page((unsigned long) dump->ioa_dump.ioa_data[i]); 3030 3031 kfree(dump); 3032 LEAVE; 3033 } 3034 3035 /** 3036 * ipr_worker_thread - Worker thread 3037 * @work: ioa config struct 3038 * 3039 * Called at task level from a work thread. This function takes care 3040 * of adding and removing device from the mid-layer as configuration 3041 * changes are detected by the adapter. 3042 * 3043 * Return value: 3044 * nothing 3045 **/ 3046 static void ipr_worker_thread(struct work_struct *work) 3047 { 3048 unsigned long lock_flags; 3049 struct ipr_resource_entry *res; 3050 struct scsi_device *sdev; 3051 struct ipr_dump *dump; 3052 struct ipr_ioa_cfg *ioa_cfg = 3053 container_of(work, struct ipr_ioa_cfg, work_q); 3054 u8 bus, target, lun; 3055 int did_work; 3056 3057 ENTER; 3058 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3059 3060 if (ioa_cfg->sdt_state == GET_DUMP) { 3061 dump = ioa_cfg->dump; 3062 if (!dump) { 3063 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3064 return; 3065 } 3066 kref_get(&dump->kref); 3067 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3068 ipr_get_ioa_dump(ioa_cfg, dump); 3069 kref_put(&dump->kref, ipr_release_dump); 3070 3071 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3072 if (ioa_cfg->sdt_state == DUMP_OBTAINED) 3073 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 3074 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3075 return; 3076 } 3077 3078 restart: 3079 do { 3080 did_work = 0; 3081 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) { 3082 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3083 return; 3084 } 3085 3086 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3087 if (res->del_from_ml && res->sdev) { 3088 did_work = 1; 3089 sdev = res->sdev; 3090 if (!scsi_device_get(sdev)) { 3091 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 3092 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3093 scsi_remove_device(sdev); 3094 scsi_device_put(sdev); 3095 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3096 } 3097 break; 3098 } 3099 } 3100 } while(did_work); 3101 3102 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3103 if (res->add_to_ml) { 3104 bus = res->bus; 3105 target = res->target; 3106 lun = res->lun; 3107 res->add_to_ml = 0; 3108 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3109 scsi_add_device(ioa_cfg->host, bus, target, lun); 3110 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3111 goto restart; 3112 } 3113 } 3114 3115 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3116 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE); 3117 LEAVE; 3118 } 3119 3120 #ifdef CONFIG_SCSI_IPR_TRACE 3121 /** 3122 * ipr_read_trace - Dump the adapter trace 3123 * @kobj: kobject struct 3124 * @bin_attr: bin_attribute struct 3125 * @buf: buffer 3126 * @off: offset 3127 * @count: buffer size 3128 * 3129 * Return value: 3130 * number of bytes printed to buffer 3131 **/ 3132 static ssize_t ipr_read_trace(struct kobject *kobj, 3133 struct bin_attribute *bin_attr, 3134 char *buf, loff_t off, size_t count) 3135 { 3136 struct device *dev = container_of(kobj, struct device, kobj); 3137 struct Scsi_Host *shost = class_to_shost(dev); 3138 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3139 unsigned long lock_flags = 0; 3140 ssize_t ret; 3141 3142 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3143 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace, 3144 IPR_TRACE_SIZE); 3145 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3146 3147 return ret; 3148 } 3149 3150 static struct bin_attribute ipr_trace_attr = { 3151 .attr = { 3152 .name = "trace", 3153 .mode = S_IRUGO, 3154 }, 3155 .size = 0, 3156 .read = ipr_read_trace, 3157 }; 3158 #endif 3159 3160 /** 3161 * ipr_show_fw_version - Show the firmware version 3162 * @dev: class device struct 3163 * @buf: buffer 3164 * 3165 * Return value: 3166 * number of bytes printed to buffer 3167 **/ 3168 static ssize_t ipr_show_fw_version(struct device *dev, 3169 struct device_attribute *attr, char *buf) 3170 { 3171 struct Scsi_Host *shost = class_to_shost(dev); 3172 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3173 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 3174 unsigned long lock_flags = 0; 3175 int len; 3176 3177 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3178 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n", 3179 ucode_vpd->major_release, ucode_vpd->card_type, 3180 ucode_vpd->minor_release[0], 3181 ucode_vpd->minor_release[1]); 3182 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3183 return len; 3184 } 3185 3186 static struct device_attribute ipr_fw_version_attr = { 3187 .attr = { 3188 .name = "fw_version", 3189 .mode = S_IRUGO, 3190 }, 3191 .show = ipr_show_fw_version, 3192 }; 3193 3194 /** 3195 * ipr_show_log_level - Show the adapter's error logging level 3196 * @dev: class device struct 3197 * @buf: buffer 3198 * 3199 * Return value: 3200 * number of bytes printed to buffer 3201 **/ 3202 static ssize_t ipr_show_log_level(struct device *dev, 3203 struct device_attribute *attr, char *buf) 3204 { 3205 struct Scsi_Host *shost = class_to_shost(dev); 3206 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3207 unsigned long lock_flags = 0; 3208 int len; 3209 3210 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3211 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level); 3212 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3213 return len; 3214 } 3215 3216 /** 3217 * ipr_store_log_level - Change the adapter's error logging level 3218 * @dev: class device struct 3219 * @buf: buffer 3220 * 3221 * Return value: 3222 * number of bytes printed to buffer 3223 **/ 3224 static ssize_t ipr_store_log_level(struct device *dev, 3225 struct device_attribute *attr, 3226 const char *buf, size_t count) 3227 { 3228 struct Scsi_Host *shost = class_to_shost(dev); 3229 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3230 unsigned long lock_flags = 0; 3231 3232 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3233 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); 3234 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3235 return strlen(buf); 3236 } 3237 3238 static struct device_attribute ipr_log_level_attr = { 3239 .attr = { 3240 .name = "log_level", 3241 .mode = S_IRUGO | S_IWUSR, 3242 }, 3243 .show = ipr_show_log_level, 3244 .store = ipr_store_log_level 3245 }; 3246 3247 /** 3248 * ipr_store_diagnostics - IOA Diagnostics interface 3249 * @dev: device struct 3250 * @buf: buffer 3251 * @count: buffer size 3252 * 3253 * This function will reset the adapter and wait a reasonable 3254 * amount of time for any errors that the adapter might log. 3255 * 3256 * Return value: 3257 * count on success / other on failure 3258 **/ 3259 static ssize_t ipr_store_diagnostics(struct device *dev, 3260 struct device_attribute *attr, 3261 const char *buf, size_t count) 3262 { 3263 struct Scsi_Host *shost = class_to_shost(dev); 3264 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3265 unsigned long lock_flags = 0; 3266 int rc = count; 3267 3268 if (!capable(CAP_SYS_ADMIN)) 3269 return -EACCES; 3270 3271 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3272 while(ioa_cfg->in_reset_reload) { 3273 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3274 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3275 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3276 } 3277 3278 ioa_cfg->errors_logged = 0; 3279 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3280 3281 if (ioa_cfg->in_reset_reload) { 3282 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3283 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3284 3285 /* Wait for a second for any errors to be logged */ 3286 msleep(1000); 3287 } else { 3288 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3289 return -EIO; 3290 } 3291 3292 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3293 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) 3294 rc = -EIO; 3295 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3296 3297 return rc; 3298 } 3299 3300 static struct device_attribute ipr_diagnostics_attr = { 3301 .attr = { 3302 .name = "run_diagnostics", 3303 .mode = S_IWUSR, 3304 }, 3305 .store = ipr_store_diagnostics 3306 }; 3307 3308 /** 3309 * ipr_show_adapter_state - Show the adapter's state 3310 * @class_dev: device struct 3311 * @buf: buffer 3312 * 3313 * Return value: 3314 * number of bytes printed to buffer 3315 **/ 3316 static ssize_t ipr_show_adapter_state(struct device *dev, 3317 struct device_attribute *attr, char *buf) 3318 { 3319 struct Scsi_Host *shost = class_to_shost(dev); 3320 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3321 unsigned long lock_flags = 0; 3322 int len; 3323 3324 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3325 if (ioa_cfg->ioa_is_dead) 3326 len = snprintf(buf, PAGE_SIZE, "offline\n"); 3327 else 3328 len = snprintf(buf, PAGE_SIZE, "online\n"); 3329 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3330 return len; 3331 } 3332 3333 /** 3334 * ipr_store_adapter_state - Change adapter state 3335 * @dev: device struct 3336 * @buf: buffer 3337 * @count: buffer size 3338 * 3339 * This function will change the adapter's state. 3340 * 3341 * Return value: 3342 * count on success / other on failure 3343 **/ 3344 static ssize_t ipr_store_adapter_state(struct device *dev, 3345 struct device_attribute *attr, 3346 const char *buf, size_t count) 3347 { 3348 struct Scsi_Host *shost = class_to_shost(dev); 3349 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3350 unsigned long lock_flags; 3351 int result = count; 3352 3353 if (!capable(CAP_SYS_ADMIN)) 3354 return -EACCES; 3355 3356 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3357 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) { 3358 ioa_cfg->ioa_is_dead = 0; 3359 ioa_cfg->reset_retries = 0; 3360 ioa_cfg->in_ioa_bringdown = 0; 3361 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 3362 } 3363 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3364 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3365 3366 return result; 3367 } 3368 3369 static struct device_attribute ipr_ioa_state_attr = { 3370 .attr = { 3371 .name = "online_state", 3372 .mode = S_IRUGO | S_IWUSR, 3373 }, 3374 .show = ipr_show_adapter_state, 3375 .store = ipr_store_adapter_state 3376 }; 3377 3378 /** 3379 * ipr_store_reset_adapter - Reset the adapter 3380 * @dev: device struct 3381 * @buf: buffer 3382 * @count: buffer size 3383 * 3384 * This function will reset the adapter. 3385 * 3386 * Return value: 3387 * count on success / other on failure 3388 **/ 3389 static ssize_t ipr_store_reset_adapter(struct device *dev, 3390 struct device_attribute *attr, 3391 const char *buf, size_t count) 3392 { 3393 struct Scsi_Host *shost = class_to_shost(dev); 3394 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3395 unsigned long lock_flags; 3396 int result = count; 3397 3398 if (!capable(CAP_SYS_ADMIN)) 3399 return -EACCES; 3400 3401 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3402 if (!ioa_cfg->in_reset_reload) 3403 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3404 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3405 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3406 3407 return result; 3408 } 3409 3410 static struct device_attribute ipr_ioa_reset_attr = { 3411 .attr = { 3412 .name = "reset_host", 3413 .mode = S_IWUSR, 3414 }, 3415 .store = ipr_store_reset_adapter 3416 }; 3417 3418 /** 3419 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer 3420 * @buf_len: buffer length 3421 * 3422 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather 3423 * list to use for microcode download 3424 * 3425 * Return value: 3426 * pointer to sglist / NULL on failure 3427 **/ 3428 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) 3429 { 3430 int sg_size, order, bsize_elem, num_elem, i, j; 3431 struct ipr_sglist *sglist; 3432 struct scatterlist *scatterlist; 3433 struct page *page; 3434 3435 /* Get the minimum size per scatter/gather element */ 3436 sg_size = buf_len / (IPR_MAX_SGLIST - 1); 3437 3438 /* Get the actual size per element */ 3439 order = get_order(sg_size); 3440 3441 /* Determine the actual number of bytes per element */ 3442 bsize_elem = PAGE_SIZE * (1 << order); 3443 3444 /* Determine the actual number of sg entries needed */ 3445 if (buf_len % bsize_elem) 3446 num_elem = (buf_len / bsize_elem) + 1; 3447 else 3448 num_elem = buf_len / bsize_elem; 3449 3450 /* Allocate a scatter/gather list for the DMA */ 3451 sglist = kzalloc(sizeof(struct ipr_sglist) + 3452 (sizeof(struct scatterlist) * (num_elem - 1)), 3453 GFP_KERNEL); 3454 3455 if (sglist == NULL) { 3456 ipr_trace; 3457 return NULL; 3458 } 3459 3460 scatterlist = sglist->scatterlist; 3461 sg_init_table(scatterlist, num_elem); 3462 3463 sglist->order = order; 3464 sglist->num_sg = num_elem; 3465 3466 /* Allocate a bunch of sg elements */ 3467 for (i = 0; i < num_elem; i++) { 3468 page = alloc_pages(GFP_KERNEL, order); 3469 if (!page) { 3470 ipr_trace; 3471 3472 /* Free up what we already allocated */ 3473 for (j = i - 1; j >= 0; j--) 3474 __free_pages(sg_page(&scatterlist[j]), order); 3475 kfree(sglist); 3476 return NULL; 3477 } 3478 3479 sg_set_page(&scatterlist[i], page, 0, 0); 3480 } 3481 3482 return sglist; 3483 } 3484 3485 /** 3486 * ipr_free_ucode_buffer - Frees a microcode download buffer 3487 * @p_dnld: scatter/gather list pointer 3488 * 3489 * Free a DMA'able ucode download buffer previously allocated with 3490 * ipr_alloc_ucode_buffer 3491 * 3492 * Return value: 3493 * nothing 3494 **/ 3495 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) 3496 { 3497 int i; 3498 3499 for (i = 0; i < sglist->num_sg; i++) 3500 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order); 3501 3502 kfree(sglist); 3503 } 3504 3505 /** 3506 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer 3507 * @sglist: scatter/gather list pointer 3508 * @buffer: buffer pointer 3509 * @len: buffer length 3510 * 3511 * Copy a microcode image from a user buffer into a buffer allocated by 3512 * ipr_alloc_ucode_buffer 3513 * 3514 * Return value: 3515 * 0 on success / other on failure 3516 **/ 3517 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, 3518 u8 *buffer, u32 len) 3519 { 3520 int bsize_elem, i, result = 0; 3521 struct scatterlist *scatterlist; 3522 void *kaddr; 3523 3524 /* Determine the actual number of bytes per element */ 3525 bsize_elem = PAGE_SIZE * (1 << sglist->order); 3526 3527 scatterlist = sglist->scatterlist; 3528 3529 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) { 3530 struct page *page = sg_page(&scatterlist[i]); 3531 3532 kaddr = kmap(page); 3533 memcpy(kaddr, buffer, bsize_elem); 3534 kunmap(page); 3535 3536 scatterlist[i].length = bsize_elem; 3537 3538 if (result != 0) { 3539 ipr_trace; 3540 return result; 3541 } 3542 } 3543 3544 if (len % bsize_elem) { 3545 struct page *page = sg_page(&scatterlist[i]); 3546 3547 kaddr = kmap(page); 3548 memcpy(kaddr, buffer, len % bsize_elem); 3549 kunmap(page); 3550 3551 scatterlist[i].length = len % bsize_elem; 3552 } 3553 3554 sglist->buffer_len = len; 3555 return result; 3556 } 3557 3558 /** 3559 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL 3560 * @ipr_cmd: ipr command struct 3561 * @sglist: scatter/gather list 3562 * 3563 * Builds a microcode download IOA data list (IOADL). 3564 * 3565 **/ 3566 static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd, 3567 struct ipr_sglist *sglist) 3568 { 3569 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 3570 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 3571 struct scatterlist *scatterlist = sglist->scatterlist; 3572 int i; 3573 3574 ipr_cmd->dma_use_sg = sglist->num_dma_sg; 3575 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 3576 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); 3577 3578 ioarcb->ioadl_len = 3579 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); 3580 for (i = 0; i < ipr_cmd->dma_use_sg; i++) { 3581 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE); 3582 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i])); 3583 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i])); 3584 } 3585 3586 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 3587 } 3588 3589 /** 3590 * ipr_build_ucode_ioadl - Build a microcode download IOADL 3591 * @ipr_cmd: ipr command struct 3592 * @sglist: scatter/gather list 3593 * 3594 * Builds a microcode download IOA data list (IOADL). 3595 * 3596 **/ 3597 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, 3598 struct ipr_sglist *sglist) 3599 { 3600 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 3601 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 3602 struct scatterlist *scatterlist = sglist->scatterlist; 3603 int i; 3604 3605 ipr_cmd->dma_use_sg = sglist->num_dma_sg; 3606 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 3607 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); 3608 3609 ioarcb->ioadl_len = 3610 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 3611 3612 for (i = 0; i < ipr_cmd->dma_use_sg; i++) { 3613 ioadl[i].flags_and_data_len = 3614 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i])); 3615 ioadl[i].address = 3616 cpu_to_be32(sg_dma_address(&scatterlist[i])); 3617 } 3618 3619 ioadl[i-1].flags_and_data_len |= 3620 cpu_to_be32(IPR_IOADL_FLAGS_LAST); 3621 } 3622 3623 /** 3624 * ipr_update_ioa_ucode - Update IOA's microcode 3625 * @ioa_cfg: ioa config struct 3626 * @sglist: scatter/gather list 3627 * 3628 * Initiate an adapter reset to update the IOA's microcode 3629 * 3630 * Return value: 3631 * 0 on success / -EIO on failure 3632 **/ 3633 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, 3634 struct ipr_sglist *sglist) 3635 { 3636 unsigned long lock_flags; 3637 3638 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3639 while(ioa_cfg->in_reset_reload) { 3640 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3641 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3642 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3643 } 3644 3645 if (ioa_cfg->ucode_sglist) { 3646 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3647 dev_err(&ioa_cfg->pdev->dev, 3648 "Microcode download already in progress\n"); 3649 return -EIO; 3650 } 3651 3652 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist, 3653 sglist->num_sg, DMA_TO_DEVICE); 3654 3655 if (!sglist->num_dma_sg) { 3656 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3657 dev_err(&ioa_cfg->pdev->dev, 3658 "Failed to map microcode download buffer!\n"); 3659 return -EIO; 3660 } 3661 3662 ioa_cfg->ucode_sglist = sglist; 3663 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3664 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3665 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3666 3667 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3668 ioa_cfg->ucode_sglist = NULL; 3669 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3670 return 0; 3671 } 3672 3673 /** 3674 * ipr_store_update_fw - Update the firmware on the adapter 3675 * @class_dev: device struct 3676 * @buf: buffer 3677 * @count: buffer size 3678 * 3679 * This function will update the firmware on the adapter. 3680 * 3681 * Return value: 3682 * count on success / other on failure 3683 **/ 3684 static ssize_t ipr_store_update_fw(struct device *dev, 3685 struct device_attribute *attr, 3686 const char *buf, size_t count) 3687 { 3688 struct Scsi_Host *shost = class_to_shost(dev); 3689 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3690 struct ipr_ucode_image_header *image_hdr; 3691 const struct firmware *fw_entry; 3692 struct ipr_sglist *sglist; 3693 char fname[100]; 3694 char *src; 3695 int len, result, dnld_size; 3696 3697 if (!capable(CAP_SYS_ADMIN)) 3698 return -EACCES; 3699 3700 len = snprintf(fname, 99, "%s", buf); 3701 fname[len-1] = '\0'; 3702 3703 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) { 3704 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname); 3705 return -EIO; 3706 } 3707 3708 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; 3709 3710 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size || 3711 (ioa_cfg->vpd_cbs->page3_data.card_type && 3712 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) { 3713 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n"); 3714 release_firmware(fw_entry); 3715 return -EINVAL; 3716 } 3717 3718 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); 3719 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); 3720 sglist = ipr_alloc_ucode_buffer(dnld_size); 3721 3722 if (!sglist) { 3723 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n"); 3724 release_firmware(fw_entry); 3725 return -ENOMEM; 3726 } 3727 3728 result = ipr_copy_ucode_buffer(sglist, src, dnld_size); 3729 3730 if (result) { 3731 dev_err(&ioa_cfg->pdev->dev, 3732 "Microcode buffer copy to DMA buffer failed\n"); 3733 goto out; 3734 } 3735 3736 result = ipr_update_ioa_ucode(ioa_cfg, sglist); 3737 3738 if (!result) 3739 result = count; 3740 out: 3741 ipr_free_ucode_buffer(sglist); 3742 release_firmware(fw_entry); 3743 return result; 3744 } 3745 3746 static struct device_attribute ipr_update_fw_attr = { 3747 .attr = { 3748 .name = "update_fw", 3749 .mode = S_IWUSR, 3750 }, 3751 .store = ipr_store_update_fw 3752 }; 3753 3754 static struct device_attribute *ipr_ioa_attrs[] = { 3755 &ipr_fw_version_attr, 3756 &ipr_log_level_attr, 3757 &ipr_diagnostics_attr, 3758 &ipr_ioa_state_attr, 3759 &ipr_ioa_reset_attr, 3760 &ipr_update_fw_attr, 3761 NULL, 3762 }; 3763 3764 #ifdef CONFIG_SCSI_IPR_DUMP 3765 /** 3766 * ipr_read_dump - Dump the adapter 3767 * @kobj: kobject struct 3768 * @bin_attr: bin_attribute struct 3769 * @buf: buffer 3770 * @off: offset 3771 * @count: buffer size 3772 * 3773 * Return value: 3774 * number of bytes printed to buffer 3775 **/ 3776 static ssize_t ipr_read_dump(struct kobject *kobj, 3777 struct bin_attribute *bin_attr, 3778 char *buf, loff_t off, size_t count) 3779 { 3780 struct device *cdev = container_of(kobj, struct device, kobj); 3781 struct Scsi_Host *shost = class_to_shost(cdev); 3782 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3783 struct ipr_dump *dump; 3784 unsigned long lock_flags = 0; 3785 char *src; 3786 int len; 3787 size_t rc = count; 3788 3789 if (!capable(CAP_SYS_ADMIN)) 3790 return -EACCES; 3791 3792 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3793 dump = ioa_cfg->dump; 3794 3795 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { 3796 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3797 return 0; 3798 } 3799 kref_get(&dump->kref); 3800 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3801 3802 if (off > dump->driver_dump.hdr.len) { 3803 kref_put(&dump->kref, ipr_release_dump); 3804 return 0; 3805 } 3806 3807 if (off + count > dump->driver_dump.hdr.len) { 3808 count = dump->driver_dump.hdr.len - off; 3809 rc = count; 3810 } 3811 3812 if (count && off < sizeof(dump->driver_dump)) { 3813 if (off + count > sizeof(dump->driver_dump)) 3814 len = sizeof(dump->driver_dump) - off; 3815 else 3816 len = count; 3817 src = (u8 *)&dump->driver_dump + off; 3818 memcpy(buf, src, len); 3819 buf += len; 3820 off += len; 3821 count -= len; 3822 } 3823 3824 off -= sizeof(dump->driver_dump); 3825 3826 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) { 3827 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data)) 3828 len = offsetof(struct ipr_ioa_dump, ioa_data) - off; 3829 else 3830 len = count; 3831 src = (u8 *)&dump->ioa_dump + off; 3832 memcpy(buf, src, len); 3833 buf += len; 3834 off += len; 3835 count -= len; 3836 } 3837 3838 off -= offsetof(struct ipr_ioa_dump, ioa_data); 3839 3840 while (count) { 3841 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) 3842 len = PAGE_ALIGN(off) - off; 3843 else 3844 len = count; 3845 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; 3846 src += off & ~PAGE_MASK; 3847 memcpy(buf, src, len); 3848 buf += len; 3849 off += len; 3850 count -= len; 3851 } 3852 3853 kref_put(&dump->kref, ipr_release_dump); 3854 return rc; 3855 } 3856 3857 /** 3858 * ipr_alloc_dump - Prepare for adapter dump 3859 * @ioa_cfg: ioa config struct 3860 * 3861 * Return value: 3862 * 0 on success / other on failure 3863 **/ 3864 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) 3865 { 3866 struct ipr_dump *dump; 3867 unsigned long lock_flags = 0; 3868 3869 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL); 3870 3871 if (!dump) { 3872 ipr_err("Dump memory allocation failed\n"); 3873 return -ENOMEM; 3874 } 3875 3876 kref_init(&dump->kref); 3877 dump->ioa_cfg = ioa_cfg; 3878 3879 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3880 3881 if (INACTIVE != ioa_cfg->sdt_state) { 3882 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3883 kfree(dump); 3884 return 0; 3885 } 3886 3887 ioa_cfg->dump = dump; 3888 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 3889 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) { 3890 ioa_cfg->dump_taken = 1; 3891 schedule_work(&ioa_cfg->work_q); 3892 } 3893 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3894 3895 return 0; 3896 } 3897 3898 /** 3899 * ipr_free_dump - Free adapter dump memory 3900 * @ioa_cfg: ioa config struct 3901 * 3902 * Return value: 3903 * 0 on success / other on failure 3904 **/ 3905 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) 3906 { 3907 struct ipr_dump *dump; 3908 unsigned long lock_flags = 0; 3909 3910 ENTER; 3911 3912 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3913 dump = ioa_cfg->dump; 3914 if (!dump) { 3915 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3916 return 0; 3917 } 3918 3919 ioa_cfg->dump = NULL; 3920 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3921 3922 kref_put(&dump->kref, ipr_release_dump); 3923 3924 LEAVE; 3925 return 0; 3926 } 3927 3928 /** 3929 * ipr_write_dump - Setup dump state of adapter 3930 * @kobj: kobject struct 3931 * @bin_attr: bin_attribute struct 3932 * @buf: buffer 3933 * @off: offset 3934 * @count: buffer size 3935 * 3936 * Return value: 3937 * number of bytes printed to buffer 3938 **/ 3939 static ssize_t ipr_write_dump(struct kobject *kobj, 3940 struct bin_attribute *bin_attr, 3941 char *buf, loff_t off, size_t count) 3942 { 3943 struct device *cdev = container_of(kobj, struct device, kobj); 3944 struct Scsi_Host *shost = class_to_shost(cdev); 3945 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3946 int rc; 3947 3948 if (!capable(CAP_SYS_ADMIN)) 3949 return -EACCES; 3950 3951 if (buf[0] == '1') 3952 rc = ipr_alloc_dump(ioa_cfg); 3953 else if (buf[0] == '0') 3954 rc = ipr_free_dump(ioa_cfg); 3955 else 3956 return -EINVAL; 3957 3958 if (rc) 3959 return rc; 3960 else 3961 return count; 3962 } 3963 3964 static struct bin_attribute ipr_dump_attr = { 3965 .attr = { 3966 .name = "dump", 3967 .mode = S_IRUSR | S_IWUSR, 3968 }, 3969 .size = 0, 3970 .read = ipr_read_dump, 3971 .write = ipr_write_dump 3972 }; 3973 #else 3974 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; 3975 #endif 3976 3977 /** 3978 * ipr_change_queue_depth - Change the device's queue depth 3979 * @sdev: scsi device struct 3980 * @qdepth: depth to set 3981 * @reason: calling context 3982 * 3983 * Return value: 3984 * actual depth set 3985 **/ 3986 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth, 3987 int reason) 3988 { 3989 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 3990 struct ipr_resource_entry *res; 3991 unsigned long lock_flags = 0; 3992 3993 if (reason != SCSI_QDEPTH_DEFAULT) 3994 return -EOPNOTSUPP; 3995 3996 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3997 res = (struct ipr_resource_entry *)sdev->hostdata; 3998 3999 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN) 4000 qdepth = IPR_MAX_CMD_PER_ATA_LUN; 4001 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4002 4003 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); 4004 return sdev->queue_depth; 4005 } 4006 4007 /** 4008 * ipr_change_queue_type - Change the device's queue type 4009 * @dsev: scsi device struct 4010 * @tag_type: type of tags to use 4011 * 4012 * Return value: 4013 * actual queue type set 4014 **/ 4015 static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type) 4016 { 4017 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4018 struct ipr_resource_entry *res; 4019 unsigned long lock_flags = 0; 4020 4021 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4022 res = (struct ipr_resource_entry *)sdev->hostdata; 4023 4024 if (res) { 4025 if (ipr_is_gscsi(res) && sdev->tagged_supported) { 4026 /* 4027 * We don't bother quiescing the device here since the 4028 * adapter firmware does it for us. 4029 */ 4030 scsi_set_tag_type(sdev, tag_type); 4031 4032 if (tag_type) 4033 scsi_activate_tcq(sdev, sdev->queue_depth); 4034 else 4035 scsi_deactivate_tcq(sdev, sdev->queue_depth); 4036 } else 4037 tag_type = 0; 4038 } else 4039 tag_type = 0; 4040 4041 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4042 return tag_type; 4043 } 4044 4045 /** 4046 * ipr_show_adapter_handle - Show the adapter's resource handle for this device 4047 * @dev: device struct 4048 * @buf: buffer 4049 * 4050 * Return value: 4051 * number of bytes printed to buffer 4052 **/ 4053 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) 4054 { 4055 struct scsi_device *sdev = to_scsi_device(dev); 4056 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4057 struct ipr_resource_entry *res; 4058 unsigned long lock_flags = 0; 4059 ssize_t len = -ENXIO; 4060 4061 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4062 res = (struct ipr_resource_entry *)sdev->hostdata; 4063 if (res) 4064 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle); 4065 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4066 return len; 4067 } 4068 4069 static struct device_attribute ipr_adapter_handle_attr = { 4070 .attr = { 4071 .name = "adapter_handle", 4072 .mode = S_IRUSR, 4073 }, 4074 .show = ipr_show_adapter_handle 4075 }; 4076 4077 /** 4078 * ipr_show_resource_path - Show the resource path for this device. 4079 * @dev: device struct 4080 * @buf: buffer 4081 * 4082 * Return value: 4083 * number of bytes printed to buffer 4084 **/ 4085 static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf) 4086 { 4087 struct scsi_device *sdev = to_scsi_device(dev); 4088 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4089 struct ipr_resource_entry *res; 4090 unsigned long lock_flags = 0; 4091 ssize_t len = -ENXIO; 4092 char buffer[IPR_MAX_RES_PATH_LENGTH]; 4093 4094 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4095 res = (struct ipr_resource_entry *)sdev->hostdata; 4096 if (res) 4097 len = snprintf(buf, PAGE_SIZE, "%s\n", 4098 ipr_format_resource_path(&res->res_path[0], &buffer[0])); 4099 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4100 return len; 4101 } 4102 4103 static struct device_attribute ipr_resource_path_attr = { 4104 .attr = { 4105 .name = "resource_path", 4106 .mode = S_IRUSR, 4107 }, 4108 .show = ipr_show_resource_path 4109 }; 4110 4111 static struct device_attribute *ipr_dev_attrs[] = { 4112 &ipr_adapter_handle_attr, 4113 &ipr_resource_path_attr, 4114 NULL, 4115 }; 4116 4117 /** 4118 * ipr_biosparam - Return the HSC mapping 4119 * @sdev: scsi device struct 4120 * @block_device: block device pointer 4121 * @capacity: capacity of the device 4122 * @parm: Array containing returned HSC values. 4123 * 4124 * This function generates the HSC parms that fdisk uses. 4125 * We want to make sure we return something that places partitions 4126 * on 4k boundaries for best performance with the IOA. 4127 * 4128 * Return value: 4129 * 0 on success 4130 **/ 4131 static int ipr_biosparam(struct scsi_device *sdev, 4132 struct block_device *block_device, 4133 sector_t capacity, int *parm) 4134 { 4135 int heads, sectors; 4136 sector_t cylinders; 4137 4138 heads = 128; 4139 sectors = 32; 4140 4141 cylinders = capacity; 4142 sector_div(cylinders, (128 * 32)); 4143 4144 /* return result */ 4145 parm[0] = heads; 4146 parm[1] = sectors; 4147 parm[2] = cylinders; 4148 4149 return 0; 4150 } 4151 4152 /** 4153 * ipr_find_starget - Find target based on bus/target. 4154 * @starget: scsi target struct 4155 * 4156 * Return value: 4157 * resource entry pointer if found / NULL if not found 4158 **/ 4159 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget) 4160 { 4161 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4162 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4163 struct ipr_resource_entry *res; 4164 4165 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4166 if ((res->bus == starget->channel) && 4167 (res->target == starget->id) && 4168 (res->lun == 0)) { 4169 return res; 4170 } 4171 } 4172 4173 return NULL; 4174 } 4175 4176 static struct ata_port_info sata_port_info; 4177 4178 /** 4179 * ipr_target_alloc - Prepare for commands to a SCSI target 4180 * @starget: scsi target struct 4181 * 4182 * If the device is a SATA device, this function allocates an 4183 * ATA port with libata, else it does nothing. 4184 * 4185 * Return value: 4186 * 0 on success / non-0 on failure 4187 **/ 4188 static int ipr_target_alloc(struct scsi_target *starget) 4189 { 4190 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4191 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4192 struct ipr_sata_port *sata_port; 4193 struct ata_port *ap; 4194 struct ipr_resource_entry *res; 4195 unsigned long lock_flags; 4196 4197 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4198 res = ipr_find_starget(starget); 4199 starget->hostdata = NULL; 4200 4201 if (res && ipr_is_gata(res)) { 4202 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4203 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL); 4204 if (!sata_port) 4205 return -ENOMEM; 4206 4207 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost); 4208 if (ap) { 4209 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4210 sata_port->ioa_cfg = ioa_cfg; 4211 sata_port->ap = ap; 4212 sata_port->res = res; 4213 4214 res->sata_port = sata_port; 4215 ap->private_data = sata_port; 4216 starget->hostdata = sata_port; 4217 } else { 4218 kfree(sata_port); 4219 return -ENOMEM; 4220 } 4221 } 4222 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4223 4224 return 0; 4225 } 4226 4227 /** 4228 * ipr_target_destroy - Destroy a SCSI target 4229 * @starget: scsi target struct 4230 * 4231 * If the device was a SATA device, this function frees the libata 4232 * ATA port, else it does nothing. 4233 * 4234 **/ 4235 static void ipr_target_destroy(struct scsi_target *starget) 4236 { 4237 struct ipr_sata_port *sata_port = starget->hostdata; 4238 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4239 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4240 4241 if (ioa_cfg->sis64) { 4242 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS) 4243 clear_bit(starget->id, ioa_cfg->array_ids); 4244 else if (starget->channel == IPR_VSET_VIRTUAL_BUS) 4245 clear_bit(starget->id, ioa_cfg->vset_ids); 4246 else if (starget->channel == 0) 4247 clear_bit(starget->id, ioa_cfg->target_ids); 4248 } 4249 4250 if (sata_port) { 4251 starget->hostdata = NULL; 4252 ata_sas_port_destroy(sata_port->ap); 4253 kfree(sata_port); 4254 } 4255 } 4256 4257 /** 4258 * ipr_find_sdev - Find device based on bus/target/lun. 4259 * @sdev: scsi device struct 4260 * 4261 * Return value: 4262 * resource entry pointer if found / NULL if not found 4263 **/ 4264 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev) 4265 { 4266 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4267 struct ipr_resource_entry *res; 4268 4269 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4270 if ((res->bus == sdev->channel) && 4271 (res->target == sdev->id) && 4272 (res->lun == sdev->lun)) 4273 return res; 4274 } 4275 4276 return NULL; 4277 } 4278 4279 /** 4280 * ipr_slave_destroy - Unconfigure a SCSI device 4281 * @sdev: scsi device struct 4282 * 4283 * Return value: 4284 * nothing 4285 **/ 4286 static void ipr_slave_destroy(struct scsi_device *sdev) 4287 { 4288 struct ipr_resource_entry *res; 4289 struct ipr_ioa_cfg *ioa_cfg; 4290 unsigned long lock_flags = 0; 4291 4292 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4293 4294 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4295 res = (struct ipr_resource_entry *) sdev->hostdata; 4296 if (res) { 4297 if (res->sata_port) 4298 ata_port_disable(res->sata_port->ap); 4299 sdev->hostdata = NULL; 4300 res->sdev = NULL; 4301 res->sata_port = NULL; 4302 } 4303 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4304 } 4305 4306 /** 4307 * ipr_slave_configure - Configure a SCSI device 4308 * @sdev: scsi device struct 4309 * 4310 * This function configures the specified scsi device. 4311 * 4312 * Return value: 4313 * 0 on success 4314 **/ 4315 static int ipr_slave_configure(struct scsi_device *sdev) 4316 { 4317 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4318 struct ipr_resource_entry *res; 4319 struct ata_port *ap = NULL; 4320 unsigned long lock_flags = 0; 4321 char buffer[IPR_MAX_RES_PATH_LENGTH]; 4322 4323 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4324 res = sdev->hostdata; 4325 if (res) { 4326 if (ipr_is_af_dasd_device(res)) 4327 sdev->type = TYPE_RAID; 4328 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { 4329 sdev->scsi_level = 4; 4330 sdev->no_uld_attach = 1; 4331 } 4332 if (ipr_is_vset_device(res)) { 4333 blk_queue_rq_timeout(sdev->request_queue, 4334 IPR_VSET_RW_TIMEOUT); 4335 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); 4336 } 4337 if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)) 4338 sdev->allow_restart = 1; 4339 if (ipr_is_gata(res) && res->sata_port) 4340 ap = res->sata_port->ap; 4341 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4342 4343 if (ap) { 4344 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN); 4345 ata_sas_slave_configure(sdev, ap); 4346 } else 4347 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); 4348 if (ioa_cfg->sis64) 4349 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n", 4350 ipr_format_resource_path(&res->res_path[0], &buffer[0])); 4351 return 0; 4352 } 4353 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4354 return 0; 4355 } 4356 4357 /** 4358 * ipr_ata_slave_alloc - Prepare for commands to a SATA device 4359 * @sdev: scsi device struct 4360 * 4361 * This function initializes an ATA port so that future commands 4362 * sent through queuecommand will work. 4363 * 4364 * Return value: 4365 * 0 on success 4366 **/ 4367 static int ipr_ata_slave_alloc(struct scsi_device *sdev) 4368 { 4369 struct ipr_sata_port *sata_port = NULL; 4370 int rc = -ENXIO; 4371 4372 ENTER; 4373 if (sdev->sdev_target) 4374 sata_port = sdev->sdev_target->hostdata; 4375 if (sata_port) 4376 rc = ata_sas_port_init(sata_port->ap); 4377 if (rc) 4378 ipr_slave_destroy(sdev); 4379 4380 LEAVE; 4381 return rc; 4382 } 4383 4384 /** 4385 * ipr_slave_alloc - Prepare for commands to a device. 4386 * @sdev: scsi device struct 4387 * 4388 * This function saves a pointer to the resource entry 4389 * in the scsi device struct if the device exists. We 4390 * can then use this pointer in ipr_queuecommand when 4391 * handling new commands. 4392 * 4393 * Return value: 4394 * 0 on success / -ENXIO if device does not exist 4395 **/ 4396 static int ipr_slave_alloc(struct scsi_device *sdev) 4397 { 4398 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4399 struct ipr_resource_entry *res; 4400 unsigned long lock_flags; 4401 int rc = -ENXIO; 4402 4403 sdev->hostdata = NULL; 4404 4405 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4406 4407 res = ipr_find_sdev(sdev); 4408 if (res) { 4409 res->sdev = sdev; 4410 res->add_to_ml = 0; 4411 res->in_erp = 0; 4412 sdev->hostdata = res; 4413 if (!ipr_is_naca_model(res)) 4414 res->needs_sync_complete = 1; 4415 rc = 0; 4416 if (ipr_is_gata(res)) { 4417 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4418 return ipr_ata_slave_alloc(sdev); 4419 } 4420 } 4421 4422 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4423 4424 return rc; 4425 } 4426 4427 /** 4428 * ipr_eh_host_reset - Reset the host adapter 4429 * @scsi_cmd: scsi command struct 4430 * 4431 * Return value: 4432 * SUCCESS / FAILED 4433 **/ 4434 static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd) 4435 { 4436 struct ipr_ioa_cfg *ioa_cfg; 4437 int rc; 4438 4439 ENTER; 4440 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 4441 4442 dev_err(&ioa_cfg->pdev->dev, 4443 "Adapter being reset as a result of error recovery.\n"); 4444 4445 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4446 ioa_cfg->sdt_state = GET_DUMP; 4447 4448 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV); 4449 4450 LEAVE; 4451 return rc; 4452 } 4453 4454 static int ipr_eh_host_reset(struct scsi_cmnd * cmd) 4455 { 4456 int rc; 4457 4458 spin_lock_irq(cmd->device->host->host_lock); 4459 rc = __ipr_eh_host_reset(cmd); 4460 spin_unlock_irq(cmd->device->host->host_lock); 4461 4462 return rc; 4463 } 4464 4465 /** 4466 * ipr_device_reset - Reset the device 4467 * @ioa_cfg: ioa config struct 4468 * @res: resource entry struct 4469 * 4470 * This function issues a device reset to the affected device. 4471 * If the device is a SCSI device, a LUN reset will be sent 4472 * to the device first. If that does not work, a target reset 4473 * will be sent. If the device is a SATA device, a PHY reset will 4474 * be sent. 4475 * 4476 * Return value: 4477 * 0 on success / non-zero on failure 4478 **/ 4479 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg, 4480 struct ipr_resource_entry *res) 4481 { 4482 struct ipr_cmnd *ipr_cmd; 4483 struct ipr_ioarcb *ioarcb; 4484 struct ipr_cmd_pkt *cmd_pkt; 4485 struct ipr_ioarcb_ata_regs *regs; 4486 u32 ioasc; 4487 4488 ENTER; 4489 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4490 ioarcb = &ipr_cmd->ioarcb; 4491 cmd_pkt = &ioarcb->cmd_pkt; 4492 4493 if (ipr_cmd->ioa_cfg->sis64) { 4494 regs = &ipr_cmd->i.ata_ioadl.regs; 4495 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); 4496 } else 4497 regs = &ioarcb->u.add_data.u.regs; 4498 4499 ioarcb->res_handle = res->res_handle; 4500 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4501 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 4502 if (ipr_is_gata(res)) { 4503 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET; 4504 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags)); 4505 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 4506 } 4507 4508 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 4509 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4510 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4511 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) 4512 memcpy(&res->sata_port->ioasa, &ipr_cmd->ioasa.u.gata, 4513 sizeof(struct ipr_ioasa_gata)); 4514 4515 LEAVE; 4516 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0); 4517 } 4518 4519 /** 4520 * ipr_sata_reset - Reset the SATA port 4521 * @link: SATA link to reset 4522 * @classes: class of the attached device 4523 * 4524 * This function issues a SATA phy reset to the affected ATA link. 4525 * 4526 * Return value: 4527 * 0 on success / non-zero on failure 4528 **/ 4529 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes, 4530 unsigned long deadline) 4531 { 4532 struct ipr_sata_port *sata_port = link->ap->private_data; 4533 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 4534 struct ipr_resource_entry *res; 4535 unsigned long lock_flags = 0; 4536 int rc = -ENXIO; 4537 4538 ENTER; 4539 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4540 while(ioa_cfg->in_reset_reload) { 4541 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4542 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 4543 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4544 } 4545 4546 res = sata_port->res; 4547 if (res) { 4548 rc = ipr_device_reset(ioa_cfg, res); 4549 *classes = res->ata_class; 4550 } 4551 4552 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4553 LEAVE; 4554 return rc; 4555 } 4556 4557 /** 4558 * ipr_eh_dev_reset - Reset the device 4559 * @scsi_cmd: scsi command struct 4560 * 4561 * This function issues a device reset to the affected device. 4562 * A LUN reset will be sent to the device first. If that does 4563 * not work, a target reset will be sent. 4564 * 4565 * Return value: 4566 * SUCCESS / FAILED 4567 **/ 4568 static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd) 4569 { 4570 struct ipr_cmnd *ipr_cmd; 4571 struct ipr_ioa_cfg *ioa_cfg; 4572 struct ipr_resource_entry *res; 4573 struct ata_port *ap; 4574 int rc = 0; 4575 4576 ENTER; 4577 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 4578 res = scsi_cmd->device->hostdata; 4579 4580 if (!res) 4581 return FAILED; 4582 4583 /* 4584 * If we are currently going through reset/reload, return failed. This will force the 4585 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the 4586 * reset to complete 4587 */ 4588 if (ioa_cfg->in_reset_reload) 4589 return FAILED; 4590 if (ioa_cfg->ioa_is_dead) 4591 return FAILED; 4592 4593 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4594 if (ipr_cmd->ioarcb.res_handle == res->res_handle) { 4595 if (ipr_cmd->scsi_cmd) 4596 ipr_cmd->done = ipr_scsi_eh_done; 4597 if (ipr_cmd->qc) 4598 ipr_cmd->done = ipr_sata_eh_done; 4599 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) { 4600 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT; 4601 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED; 4602 } 4603 } 4604 } 4605 4606 res->resetting_device = 1; 4607 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n"); 4608 4609 if (ipr_is_gata(res) && res->sata_port) { 4610 ap = res->sata_port->ap; 4611 spin_unlock_irq(scsi_cmd->device->host->host_lock); 4612 ata_std_error_handler(ap); 4613 spin_lock_irq(scsi_cmd->device->host->host_lock); 4614 4615 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4616 if (ipr_cmd->ioarcb.res_handle == res->res_handle) { 4617 rc = -EIO; 4618 break; 4619 } 4620 } 4621 } else 4622 rc = ipr_device_reset(ioa_cfg, res); 4623 res->resetting_device = 0; 4624 4625 LEAVE; 4626 return (rc ? FAILED : SUCCESS); 4627 } 4628 4629 static int ipr_eh_dev_reset(struct scsi_cmnd * cmd) 4630 { 4631 int rc; 4632 4633 spin_lock_irq(cmd->device->host->host_lock); 4634 rc = __ipr_eh_dev_reset(cmd); 4635 spin_unlock_irq(cmd->device->host->host_lock); 4636 4637 return rc; 4638 } 4639 4640 /** 4641 * ipr_bus_reset_done - Op done function for bus reset. 4642 * @ipr_cmd: ipr command struct 4643 * 4644 * This function is the op done function for a bus reset 4645 * 4646 * Return value: 4647 * none 4648 **/ 4649 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) 4650 { 4651 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4652 struct ipr_resource_entry *res; 4653 4654 ENTER; 4655 if (!ioa_cfg->sis64) 4656 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4657 if (res->res_handle == ipr_cmd->ioarcb.res_handle) { 4658 scsi_report_bus_reset(ioa_cfg->host, res->bus); 4659 break; 4660 } 4661 } 4662 4663 /* 4664 * If abort has not completed, indicate the reset has, else call the 4665 * abort's done function to wake the sleeping eh thread 4666 */ 4667 if (ipr_cmd->sibling->sibling) 4668 ipr_cmd->sibling->sibling = NULL; 4669 else 4670 ipr_cmd->sibling->done(ipr_cmd->sibling); 4671 4672 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4673 LEAVE; 4674 } 4675 4676 /** 4677 * ipr_abort_timeout - An abort task has timed out 4678 * @ipr_cmd: ipr command struct 4679 * 4680 * This function handles when an abort task times out. If this 4681 * happens we issue a bus reset since we have resources tied 4682 * up that must be freed before returning to the midlayer. 4683 * 4684 * Return value: 4685 * none 4686 **/ 4687 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd) 4688 { 4689 struct ipr_cmnd *reset_cmd; 4690 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4691 struct ipr_cmd_pkt *cmd_pkt; 4692 unsigned long lock_flags = 0; 4693 4694 ENTER; 4695 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4696 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { 4697 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4698 return; 4699 } 4700 4701 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n"); 4702 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4703 ipr_cmd->sibling = reset_cmd; 4704 reset_cmd->sibling = ipr_cmd; 4705 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; 4706 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; 4707 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4708 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 4709 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; 4710 4711 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 4712 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4713 LEAVE; 4714 } 4715 4716 /** 4717 * ipr_cancel_op - Cancel specified op 4718 * @scsi_cmd: scsi command struct 4719 * 4720 * This function cancels specified op. 4721 * 4722 * Return value: 4723 * SUCCESS / FAILED 4724 **/ 4725 static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd) 4726 { 4727 struct ipr_cmnd *ipr_cmd; 4728 struct ipr_ioa_cfg *ioa_cfg; 4729 struct ipr_resource_entry *res; 4730 struct ipr_cmd_pkt *cmd_pkt; 4731 u32 ioasc; 4732 int op_found = 0; 4733 4734 ENTER; 4735 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 4736 res = scsi_cmd->device->hostdata; 4737 4738 /* If we are currently going through reset/reload, return failed. 4739 * This will force the mid-layer to call ipr_eh_host_reset, 4740 * which will then go to sleep and wait for the reset to complete 4741 */ 4742 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead) 4743 return FAILED; 4744 if (!res || !ipr_is_gscsi(res)) 4745 return FAILED; 4746 4747 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4748 if (ipr_cmd->scsi_cmd == scsi_cmd) { 4749 ipr_cmd->done = ipr_scsi_eh_done; 4750 op_found = 1; 4751 break; 4752 } 4753 } 4754 4755 if (!op_found) 4756 return SUCCESS; 4757 4758 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4759 ipr_cmd->ioarcb.res_handle = res->res_handle; 4760 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 4761 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4762 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 4763 ipr_cmd->u.sdev = scsi_cmd->device; 4764 4765 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n", 4766 scsi_cmd->cmnd[0]); 4767 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); 4768 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4769 4770 /* 4771 * If the abort task timed out and we sent a bus reset, we will get 4772 * one the following responses to the abort 4773 */ 4774 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { 4775 ioasc = 0; 4776 ipr_trace; 4777 } 4778 4779 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4780 if (!ipr_is_naca_model(res)) 4781 res->needs_sync_complete = 1; 4782 4783 LEAVE; 4784 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS); 4785 } 4786 4787 /** 4788 * ipr_eh_abort - Abort a single op 4789 * @scsi_cmd: scsi command struct 4790 * 4791 * Return value: 4792 * SUCCESS / FAILED 4793 **/ 4794 static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd) 4795 { 4796 unsigned long flags; 4797 int rc; 4798 4799 ENTER; 4800 4801 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); 4802 rc = ipr_cancel_op(scsi_cmd); 4803 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags); 4804 4805 LEAVE; 4806 return rc; 4807 } 4808 4809 /** 4810 * ipr_handle_other_interrupt - Handle "other" interrupts 4811 * @ioa_cfg: ioa config struct 4812 * @int_reg: interrupt register 4813 * 4814 * Return value: 4815 * IRQ_NONE / IRQ_HANDLED 4816 **/ 4817 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, 4818 volatile u32 int_reg) 4819 { 4820 irqreturn_t rc = IRQ_HANDLED; 4821 4822 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 4823 /* Mask the interrupt */ 4824 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg); 4825 4826 /* Clear the interrupt */ 4827 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg); 4828 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 4829 4830 list_del(&ioa_cfg->reset_cmd->queue); 4831 del_timer(&ioa_cfg->reset_cmd->timer); 4832 ipr_reset_ioa_job(ioa_cfg->reset_cmd); 4833 } else { 4834 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) 4835 ioa_cfg->ioa_unit_checked = 1; 4836 else 4837 dev_err(&ioa_cfg->pdev->dev, 4838 "Permanent IOA failure. 0x%08X\n", int_reg); 4839 4840 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4841 ioa_cfg->sdt_state = GET_DUMP; 4842 4843 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 4844 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 4845 } 4846 4847 return rc; 4848 } 4849 4850 /** 4851 * ipr_isr_eh - Interrupt service routine error handler 4852 * @ioa_cfg: ioa config struct 4853 * @msg: message to log 4854 * 4855 * Return value: 4856 * none 4857 **/ 4858 static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg) 4859 { 4860 ioa_cfg->errors_logged++; 4861 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg); 4862 4863 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4864 ioa_cfg->sdt_state = GET_DUMP; 4865 4866 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 4867 } 4868 4869 /** 4870 * ipr_isr - Interrupt service routine 4871 * @irq: irq number 4872 * @devp: pointer to ioa config struct 4873 * 4874 * Return value: 4875 * IRQ_NONE / IRQ_HANDLED 4876 **/ 4877 static irqreturn_t ipr_isr(int irq, void *devp) 4878 { 4879 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; 4880 unsigned long lock_flags = 0; 4881 volatile u32 int_reg, int_mask_reg; 4882 u32 ioasc; 4883 u16 cmd_index; 4884 int num_hrrq = 0; 4885 struct ipr_cmnd *ipr_cmd; 4886 irqreturn_t rc = IRQ_NONE; 4887 4888 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4889 4890 /* If interrupts are disabled, ignore the interrupt */ 4891 if (!ioa_cfg->allow_interrupts) { 4892 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4893 return IRQ_NONE; 4894 } 4895 4896 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); 4897 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg; 4898 4899 /* If an interrupt on the adapter did not occur, ignore it. 4900 * Or in the case of SIS 64, check for a stage change interrupt. 4901 */ 4902 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) { 4903 if (ioa_cfg->sis64) { 4904 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 4905 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 4906 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) { 4907 4908 /* clear stage change */ 4909 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg); 4910 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 4911 list_del(&ioa_cfg->reset_cmd->queue); 4912 del_timer(&ioa_cfg->reset_cmd->timer); 4913 ipr_reset_ioa_job(ioa_cfg->reset_cmd); 4914 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4915 return IRQ_HANDLED; 4916 } 4917 } 4918 4919 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4920 return IRQ_NONE; 4921 } 4922 4923 while (1) { 4924 ipr_cmd = NULL; 4925 4926 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == 4927 ioa_cfg->toggle_bit) { 4928 4929 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) & 4930 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; 4931 4932 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) { 4933 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA"); 4934 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4935 return IRQ_HANDLED; 4936 } 4937 4938 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; 4939 4940 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4941 4942 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc); 4943 4944 list_del(&ipr_cmd->queue); 4945 del_timer(&ipr_cmd->timer); 4946 ipr_cmd->done(ipr_cmd); 4947 4948 rc = IRQ_HANDLED; 4949 4950 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) { 4951 ioa_cfg->hrrq_curr++; 4952 } else { 4953 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 4954 ioa_cfg->toggle_bit ^= 1u; 4955 } 4956 } 4957 4958 if (ipr_cmd != NULL) { 4959 /* Clear the PCI interrupt */ 4960 do { 4961 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32); 4962 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg; 4963 } while (int_reg & IPR_PCII_HRRQ_UPDATED && 4964 num_hrrq++ < IPR_MAX_HRRQ_RETRIES); 4965 4966 if (int_reg & IPR_PCII_HRRQ_UPDATED) { 4967 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ"); 4968 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4969 return IRQ_HANDLED; 4970 } 4971 4972 } else 4973 break; 4974 } 4975 4976 if (unlikely(rc == IRQ_NONE)) 4977 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); 4978 4979 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4980 return rc; 4981 } 4982 4983 /** 4984 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer 4985 * @ioa_cfg: ioa config struct 4986 * @ipr_cmd: ipr command struct 4987 * 4988 * Return value: 4989 * 0 on success / -1 on failure 4990 **/ 4991 static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg, 4992 struct ipr_cmnd *ipr_cmd) 4993 { 4994 int i, nseg; 4995 struct scatterlist *sg; 4996 u32 length; 4997 u32 ioadl_flags = 0; 4998 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4999 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5000 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 5001 5002 length = scsi_bufflen(scsi_cmd); 5003 if (!length) 5004 return 0; 5005 5006 nseg = scsi_dma_map(scsi_cmd); 5007 if (nseg < 0) { 5008 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); 5009 return -1; 5010 } 5011 5012 ipr_cmd->dma_use_sg = nseg; 5013 5014 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { 5015 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5016 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5017 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) 5018 ioadl_flags = IPR_IOADL_FLAGS_READ; 5019 5020 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { 5021 ioadl64[i].flags = cpu_to_be32(ioadl_flags); 5022 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg)); 5023 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg)); 5024 } 5025 5026 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5027 return 0; 5028 } 5029 5030 /** 5031 * ipr_build_ioadl - Build a scatter/gather list and map the buffer 5032 * @ioa_cfg: ioa config struct 5033 * @ipr_cmd: ipr command struct 5034 * 5035 * Return value: 5036 * 0 on success / -1 on failure 5037 **/ 5038 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, 5039 struct ipr_cmnd *ipr_cmd) 5040 { 5041 int i, nseg; 5042 struct scatterlist *sg; 5043 u32 length; 5044 u32 ioadl_flags = 0; 5045 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5046 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5047 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 5048 5049 length = scsi_bufflen(scsi_cmd); 5050 if (!length) 5051 return 0; 5052 5053 nseg = scsi_dma_map(scsi_cmd); 5054 if (nseg < 0) { 5055 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); 5056 return -1; 5057 } 5058 5059 ipr_cmd->dma_use_sg = nseg; 5060 5061 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { 5062 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5063 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5064 ioarcb->data_transfer_length = cpu_to_be32(length); 5065 ioarcb->ioadl_len = 5066 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5067 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { 5068 ioadl_flags = IPR_IOADL_FLAGS_READ; 5069 ioarcb->read_data_transfer_length = cpu_to_be32(length); 5070 ioarcb->read_ioadl_len = 5071 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5072 } 5073 5074 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) { 5075 ioadl = ioarcb->u.add_data.u.ioadl; 5076 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) + 5077 offsetof(struct ipr_ioarcb, u.add_data)); 5078 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 5079 } 5080 5081 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { 5082 ioadl[i].flags_and_data_len = 5083 cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 5084 ioadl[i].address = cpu_to_be32(sg_dma_address(sg)); 5085 } 5086 5087 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5088 return 0; 5089 } 5090 5091 /** 5092 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes 5093 * @scsi_cmd: scsi command struct 5094 * 5095 * Return value: 5096 * task attributes 5097 **/ 5098 static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd) 5099 { 5100 u8 tag[2]; 5101 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK; 5102 5103 if (scsi_populate_tag_msg(scsi_cmd, tag)) { 5104 switch (tag[0]) { 5105 case MSG_SIMPLE_TAG: 5106 rc = IPR_FLAGS_LO_SIMPLE_TASK; 5107 break; 5108 case MSG_HEAD_TAG: 5109 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK; 5110 break; 5111 case MSG_ORDERED_TAG: 5112 rc = IPR_FLAGS_LO_ORDERED_TASK; 5113 break; 5114 }; 5115 } 5116 5117 return rc; 5118 } 5119 5120 /** 5121 * ipr_erp_done - Process completion of ERP for a device 5122 * @ipr_cmd: ipr command struct 5123 * 5124 * This function copies the sense buffer into the scsi_cmd 5125 * struct and pushes the scsi_done function. 5126 * 5127 * Return value: 5128 * nothing 5129 **/ 5130 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) 5131 { 5132 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5133 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 5134 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5135 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5136 5137 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 5138 scsi_cmd->result |= (DID_ERROR << 16); 5139 scmd_printk(KERN_ERR, scsi_cmd, 5140 "Request Sense failed with IOASC: 0x%08X\n", ioasc); 5141 } else { 5142 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, 5143 SCSI_SENSE_BUFFERSIZE); 5144 } 5145 5146 if (res) { 5147 if (!ipr_is_naca_model(res)) 5148 res->needs_sync_complete = 1; 5149 res->in_erp = 0; 5150 } 5151 scsi_dma_unmap(ipr_cmd->scsi_cmd); 5152 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5153 scsi_cmd->scsi_done(scsi_cmd); 5154 } 5155 5156 /** 5157 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP 5158 * @ipr_cmd: ipr command struct 5159 * 5160 * Return value: 5161 * none 5162 **/ 5163 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) 5164 { 5165 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5166 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 5167 dma_addr_t dma_addr = ipr_cmd->dma_addr; 5168 5169 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 5170 ioarcb->data_transfer_length = 0; 5171 ioarcb->read_data_transfer_length = 0; 5172 ioarcb->ioadl_len = 0; 5173 ioarcb->read_ioadl_len = 0; 5174 ioasa->ioasc = 0; 5175 ioasa->residual_data_len = 0; 5176 5177 if (ipr_cmd->ioa_cfg->sis64) 5178 ioarcb->u.sis64_addr_data.data_ioadl_addr = 5179 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 5180 else { 5181 ioarcb->write_ioadl_addr = 5182 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 5183 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 5184 } 5185 } 5186 5187 /** 5188 * ipr_erp_request_sense - Send request sense to a device 5189 * @ipr_cmd: ipr command struct 5190 * 5191 * This function sends a request sense to a device as a result 5192 * of a check condition. 5193 * 5194 * Return value: 5195 * nothing 5196 **/ 5197 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) 5198 { 5199 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 5200 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5201 5202 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 5203 ipr_erp_done(ipr_cmd); 5204 return; 5205 } 5206 5207 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 5208 5209 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; 5210 cmd_pkt->cdb[0] = REQUEST_SENSE; 5211 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; 5212 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; 5213 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 5214 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); 5215 5216 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma, 5217 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST); 5218 5219 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout, 5220 IPR_REQUEST_SENSE_TIMEOUT * 2); 5221 } 5222 5223 /** 5224 * ipr_erp_cancel_all - Send cancel all to a device 5225 * @ipr_cmd: ipr command struct 5226 * 5227 * This function sends a cancel all to a device to clear the 5228 * queue. If we are running TCQ on the device, QERR is set to 1, 5229 * which means all outstanding ops have been dropped on the floor. 5230 * Cancel all will return them to us. 5231 * 5232 * Return value: 5233 * nothing 5234 **/ 5235 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) 5236 { 5237 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5238 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 5239 struct ipr_cmd_pkt *cmd_pkt; 5240 5241 res->in_erp = 1; 5242 5243 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 5244 5245 if (!scsi_get_tag_type(scsi_cmd->device)) { 5246 ipr_erp_request_sense(ipr_cmd); 5247 return; 5248 } 5249 5250 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 5251 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 5252 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 5253 5254 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout, 5255 IPR_CANCEL_ALL_TIMEOUT); 5256 } 5257 5258 /** 5259 * ipr_dump_ioasa - Dump contents of IOASA 5260 * @ioa_cfg: ioa config struct 5261 * @ipr_cmd: ipr command struct 5262 * @res: resource entry struct 5263 * 5264 * This function is invoked by the interrupt handler when ops 5265 * fail. It will log the IOASA if appropriate. Only called 5266 * for GPDD ops. 5267 * 5268 * Return value: 5269 * none 5270 **/ 5271 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, 5272 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res) 5273 { 5274 int i; 5275 u16 data_len; 5276 u32 ioasc, fd_ioasc; 5277 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 5278 __be32 *ioasa_data = (__be32 *)ioasa; 5279 int error_index; 5280 5281 ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK; 5282 fd_ioasc = be32_to_cpu(ioasa->fd_ioasc) & IPR_IOASC_IOASC_MASK; 5283 5284 if (0 == ioasc) 5285 return; 5286 5287 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) 5288 return; 5289 5290 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc) 5291 error_index = ipr_get_error(fd_ioasc); 5292 else 5293 error_index = ipr_get_error(ioasc); 5294 5295 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { 5296 /* Don't log an error if the IOA already logged one */ 5297 if (ioasa->ilid != 0) 5298 return; 5299 5300 if (!ipr_is_gscsi(res)) 5301 return; 5302 5303 if (ipr_error_table[error_index].log_ioasa == 0) 5304 return; 5305 } 5306 5307 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error); 5308 5309 if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len)) 5310 data_len = sizeof(struct ipr_ioasa); 5311 else 5312 data_len = be16_to_cpu(ioasa->ret_stat_len); 5313 5314 ipr_err("IOASA Dump:\n"); 5315 5316 for (i = 0; i < data_len / 4; i += 4) { 5317 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 5318 be32_to_cpu(ioasa_data[i]), 5319 be32_to_cpu(ioasa_data[i+1]), 5320 be32_to_cpu(ioasa_data[i+2]), 5321 be32_to_cpu(ioasa_data[i+3])); 5322 } 5323 } 5324 5325 /** 5326 * ipr_gen_sense - Generate SCSI sense data from an IOASA 5327 * @ioasa: IOASA 5328 * @sense_buf: sense data buffer 5329 * 5330 * Return value: 5331 * none 5332 **/ 5333 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) 5334 { 5335 u32 failing_lba; 5336 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; 5337 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; 5338 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 5339 u32 ioasc = be32_to_cpu(ioasa->ioasc); 5340 5341 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); 5342 5343 if (ioasc >= IPR_FIRST_DRIVER_IOASC) 5344 return; 5345 5346 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; 5347 5348 if (ipr_is_vset_device(res) && 5349 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && 5350 ioasa->u.vset.failing_lba_hi != 0) { 5351 sense_buf[0] = 0x72; 5352 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); 5353 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); 5354 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); 5355 5356 sense_buf[7] = 12; 5357 sense_buf[8] = 0; 5358 sense_buf[9] = 0x0A; 5359 sense_buf[10] = 0x80; 5360 5361 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); 5362 5363 sense_buf[12] = (failing_lba & 0xff000000) >> 24; 5364 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; 5365 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; 5366 sense_buf[15] = failing_lba & 0x000000ff; 5367 5368 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 5369 5370 sense_buf[16] = (failing_lba & 0xff000000) >> 24; 5371 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; 5372 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; 5373 sense_buf[19] = failing_lba & 0x000000ff; 5374 } else { 5375 sense_buf[0] = 0x70; 5376 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); 5377 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); 5378 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); 5379 5380 /* Illegal request */ 5381 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && 5382 (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) { 5383 sense_buf[7] = 10; /* additional length */ 5384 5385 /* IOARCB was in error */ 5386 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) 5387 sense_buf[15] = 0xC0; 5388 else /* Parameter data was invalid */ 5389 sense_buf[15] = 0x80; 5390 5391 sense_buf[16] = 5392 ((IPR_FIELD_POINTER_MASK & 5393 be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff; 5394 sense_buf[17] = 5395 (IPR_FIELD_POINTER_MASK & 5396 be32_to_cpu(ioasa->ioasc_specific)) & 0xff; 5397 } else { 5398 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { 5399 if (ipr_is_vset_device(res)) 5400 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 5401 else 5402 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); 5403 5404 sense_buf[0] |= 0x80; /* Or in the Valid bit */ 5405 sense_buf[3] = (failing_lba & 0xff000000) >> 24; 5406 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; 5407 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; 5408 sense_buf[6] = failing_lba & 0x000000ff; 5409 } 5410 5411 sense_buf[7] = 6; /* additional length */ 5412 } 5413 } 5414 } 5415 5416 /** 5417 * ipr_get_autosense - Copy autosense data to sense buffer 5418 * @ipr_cmd: ipr command struct 5419 * 5420 * This function copies the autosense buffer to the buffer 5421 * in the scsi_cmd, if there is autosense available. 5422 * 5423 * Return value: 5424 * 1 if autosense was available / 0 if not 5425 **/ 5426 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd) 5427 { 5428 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 5429 5430 if ((be32_to_cpu(ioasa->ioasc_specific) & IPR_AUTOSENSE_VALID) == 0) 5431 return 0; 5432 5433 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data, 5434 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len), 5435 SCSI_SENSE_BUFFERSIZE)); 5436 return 1; 5437 } 5438 5439 /** 5440 * ipr_erp_start - Process an error response for a SCSI op 5441 * @ioa_cfg: ioa config struct 5442 * @ipr_cmd: ipr command struct 5443 * 5444 * This function determines whether or not to initiate ERP 5445 * on the affected device. 5446 * 5447 * Return value: 5448 * nothing 5449 **/ 5450 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, 5451 struct ipr_cmnd *ipr_cmd) 5452 { 5453 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5454 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 5455 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5456 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK; 5457 5458 if (!res) { 5459 ipr_scsi_eh_done(ipr_cmd); 5460 return; 5461 } 5462 5463 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS) 5464 ipr_gen_sense(ipr_cmd); 5465 5466 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 5467 5468 switch (masked_ioasc) { 5469 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: 5470 if (ipr_is_naca_model(res)) 5471 scsi_cmd->result |= (DID_ABORT << 16); 5472 else 5473 scsi_cmd->result |= (DID_IMM_RETRY << 16); 5474 break; 5475 case IPR_IOASC_IR_RESOURCE_HANDLE: 5476 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: 5477 scsi_cmd->result |= (DID_NO_CONNECT << 16); 5478 break; 5479 case IPR_IOASC_HW_SEL_TIMEOUT: 5480 scsi_cmd->result |= (DID_NO_CONNECT << 16); 5481 if (!ipr_is_naca_model(res)) 5482 res->needs_sync_complete = 1; 5483 break; 5484 case IPR_IOASC_SYNC_REQUIRED: 5485 if (!res->in_erp) 5486 res->needs_sync_complete = 1; 5487 scsi_cmd->result |= (DID_IMM_RETRY << 16); 5488 break; 5489 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ 5490 case IPR_IOASA_IR_DUAL_IOA_DISABLED: 5491 scsi_cmd->result |= (DID_PASSTHROUGH << 16); 5492 break; 5493 case IPR_IOASC_BUS_WAS_RESET: 5494 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: 5495 /* 5496 * Report the bus reset and ask for a retry. The device 5497 * will give CC/UA the next command. 5498 */ 5499 if (!res->resetting_device) 5500 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); 5501 scsi_cmd->result |= (DID_ERROR << 16); 5502 if (!ipr_is_naca_model(res)) 5503 res->needs_sync_complete = 1; 5504 break; 5505 case IPR_IOASC_HW_DEV_BUS_STATUS: 5506 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); 5507 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { 5508 if (!ipr_get_autosense(ipr_cmd)) { 5509 if (!ipr_is_naca_model(res)) { 5510 ipr_erp_cancel_all(ipr_cmd); 5511 return; 5512 } 5513 } 5514 } 5515 if (!ipr_is_naca_model(res)) 5516 res->needs_sync_complete = 1; 5517 break; 5518 case IPR_IOASC_NR_INIT_CMD_REQUIRED: 5519 break; 5520 default: 5521 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 5522 scsi_cmd->result |= (DID_ERROR << 16); 5523 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res)) 5524 res->needs_sync_complete = 1; 5525 break; 5526 } 5527 5528 scsi_dma_unmap(ipr_cmd->scsi_cmd); 5529 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5530 scsi_cmd->scsi_done(scsi_cmd); 5531 } 5532 5533 /** 5534 * ipr_scsi_done - mid-layer done function 5535 * @ipr_cmd: ipr command struct 5536 * 5537 * This function is invoked by the interrupt handler for 5538 * ops generated by the SCSI mid-layer 5539 * 5540 * Return value: 5541 * none 5542 **/ 5543 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) 5544 { 5545 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5546 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5547 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5548 5549 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->ioasa.residual_data_len)); 5550 5551 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { 5552 scsi_dma_unmap(ipr_cmd->scsi_cmd); 5553 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5554 scsi_cmd->scsi_done(scsi_cmd); 5555 } else 5556 ipr_erp_start(ioa_cfg, ipr_cmd); 5557 } 5558 5559 /** 5560 * ipr_queuecommand - Queue a mid-layer request 5561 * @scsi_cmd: scsi command struct 5562 * @done: done function 5563 * 5564 * This function queues a request generated by the mid-layer. 5565 * 5566 * Return value: 5567 * 0 on success 5568 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy 5569 * SCSI_MLQUEUE_HOST_BUSY if host is busy 5570 **/ 5571 static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd, 5572 void (*done) (struct scsi_cmnd *)) 5573 { 5574 struct ipr_ioa_cfg *ioa_cfg; 5575 struct ipr_resource_entry *res; 5576 struct ipr_ioarcb *ioarcb; 5577 struct ipr_cmnd *ipr_cmd; 5578 int rc = 0; 5579 5580 scsi_cmd->scsi_done = done; 5581 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 5582 res = scsi_cmd->device->hostdata; 5583 scsi_cmd->result = (DID_OK << 16); 5584 5585 /* 5586 * We are currently blocking all devices due to a host reset 5587 * We have told the host to stop giving us new requests, but 5588 * ERP ops don't count. FIXME 5589 */ 5590 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead)) 5591 return SCSI_MLQUEUE_HOST_BUSY; 5592 5593 /* 5594 * FIXME - Create scsi_set_host_offline interface 5595 * and the ioa_is_dead check can be removed 5596 */ 5597 if (unlikely(ioa_cfg->ioa_is_dead || !res)) { 5598 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 5599 scsi_cmd->result = (DID_NO_CONNECT << 16); 5600 scsi_cmd->scsi_done(scsi_cmd); 5601 return 0; 5602 } 5603 5604 if (ipr_is_gata(res) && res->sata_port) 5605 return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap); 5606 5607 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 5608 ioarcb = &ipr_cmd->ioarcb; 5609 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 5610 5611 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); 5612 ipr_cmd->scsi_cmd = scsi_cmd; 5613 ioarcb->res_handle = res->res_handle; 5614 ipr_cmd->done = ipr_scsi_done; 5615 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); 5616 5617 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { 5618 if (scsi_cmd->underflow == 0) 5619 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 5620 5621 if (res->needs_sync_complete) { 5622 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; 5623 res->needs_sync_complete = 0; 5624 } 5625 5626 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 5627 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; 5628 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; 5629 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd); 5630 } 5631 5632 if (scsi_cmd->cmnd[0] >= 0xC0 && 5633 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) 5634 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 5635 5636 if (likely(rc == 0)) { 5637 if (ioa_cfg->sis64) 5638 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd); 5639 else 5640 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); 5641 } 5642 5643 if (likely(rc == 0)) { 5644 mb(); 5645 ipr_send_command(ipr_cmd); 5646 } else { 5647 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5648 return SCSI_MLQUEUE_HOST_BUSY; 5649 } 5650 5651 return 0; 5652 } 5653 5654 /** 5655 * ipr_ioctl - IOCTL handler 5656 * @sdev: scsi device struct 5657 * @cmd: IOCTL cmd 5658 * @arg: IOCTL arg 5659 * 5660 * Return value: 5661 * 0 on success / other on failure 5662 **/ 5663 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) 5664 { 5665 struct ipr_resource_entry *res; 5666 5667 res = (struct ipr_resource_entry *)sdev->hostdata; 5668 if (res && ipr_is_gata(res)) { 5669 if (cmd == HDIO_GET_IDENTITY) 5670 return -ENOTTY; 5671 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg); 5672 } 5673 5674 return -EINVAL; 5675 } 5676 5677 /** 5678 * ipr_info - Get information about the card/driver 5679 * @scsi_host: scsi host struct 5680 * 5681 * Return value: 5682 * pointer to buffer with description string 5683 **/ 5684 static const char * ipr_ioa_info(struct Scsi_Host *host) 5685 { 5686 static char buffer[512]; 5687 struct ipr_ioa_cfg *ioa_cfg; 5688 unsigned long lock_flags = 0; 5689 5690 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; 5691 5692 spin_lock_irqsave(host->host_lock, lock_flags); 5693 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type); 5694 spin_unlock_irqrestore(host->host_lock, lock_flags); 5695 5696 return buffer; 5697 } 5698 5699 static struct scsi_host_template driver_template = { 5700 .module = THIS_MODULE, 5701 .name = "IPR", 5702 .info = ipr_ioa_info, 5703 .ioctl = ipr_ioctl, 5704 .queuecommand = ipr_queuecommand, 5705 .eh_abort_handler = ipr_eh_abort, 5706 .eh_device_reset_handler = ipr_eh_dev_reset, 5707 .eh_host_reset_handler = ipr_eh_host_reset, 5708 .slave_alloc = ipr_slave_alloc, 5709 .slave_configure = ipr_slave_configure, 5710 .slave_destroy = ipr_slave_destroy, 5711 .target_alloc = ipr_target_alloc, 5712 .target_destroy = ipr_target_destroy, 5713 .change_queue_depth = ipr_change_queue_depth, 5714 .change_queue_type = ipr_change_queue_type, 5715 .bios_param = ipr_biosparam, 5716 .can_queue = IPR_MAX_COMMANDS, 5717 .this_id = -1, 5718 .sg_tablesize = IPR_MAX_SGLIST, 5719 .max_sectors = IPR_IOA_MAX_SECTORS, 5720 .cmd_per_lun = IPR_MAX_CMD_PER_LUN, 5721 .use_clustering = ENABLE_CLUSTERING, 5722 .shost_attrs = ipr_ioa_attrs, 5723 .sdev_attrs = ipr_dev_attrs, 5724 .proc_name = IPR_NAME 5725 }; 5726 5727 /** 5728 * ipr_ata_phy_reset - libata phy_reset handler 5729 * @ap: ata port to reset 5730 * 5731 **/ 5732 static void ipr_ata_phy_reset(struct ata_port *ap) 5733 { 5734 unsigned long flags; 5735 struct ipr_sata_port *sata_port = ap->private_data; 5736 struct ipr_resource_entry *res = sata_port->res; 5737 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5738 int rc; 5739 5740 ENTER; 5741 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5742 while(ioa_cfg->in_reset_reload) { 5743 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5744 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 5745 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5746 } 5747 5748 if (!ioa_cfg->allow_cmds) 5749 goto out_unlock; 5750 5751 rc = ipr_device_reset(ioa_cfg, res); 5752 5753 if (rc) { 5754 ata_port_disable(ap); 5755 goto out_unlock; 5756 } 5757 5758 ap->link.device[0].class = res->ata_class; 5759 if (ap->link.device[0].class == ATA_DEV_UNKNOWN) 5760 ata_port_disable(ap); 5761 5762 out_unlock: 5763 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5764 LEAVE; 5765 } 5766 5767 /** 5768 * ipr_ata_post_internal - Cleanup after an internal command 5769 * @qc: ATA queued command 5770 * 5771 * Return value: 5772 * none 5773 **/ 5774 static void ipr_ata_post_internal(struct ata_queued_cmd *qc) 5775 { 5776 struct ipr_sata_port *sata_port = qc->ap->private_data; 5777 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5778 struct ipr_cmnd *ipr_cmd; 5779 unsigned long flags; 5780 5781 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5782 while(ioa_cfg->in_reset_reload) { 5783 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5784 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 5785 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5786 } 5787 5788 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 5789 if (ipr_cmd->qc == qc) { 5790 ipr_device_reset(ioa_cfg, sata_port->res); 5791 break; 5792 } 5793 } 5794 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5795 } 5796 5797 /** 5798 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure 5799 * @regs: destination 5800 * @tf: source ATA taskfile 5801 * 5802 * Return value: 5803 * none 5804 **/ 5805 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs, 5806 struct ata_taskfile *tf) 5807 { 5808 regs->feature = tf->feature; 5809 regs->nsect = tf->nsect; 5810 regs->lbal = tf->lbal; 5811 regs->lbam = tf->lbam; 5812 regs->lbah = tf->lbah; 5813 regs->device = tf->device; 5814 regs->command = tf->command; 5815 regs->hob_feature = tf->hob_feature; 5816 regs->hob_nsect = tf->hob_nsect; 5817 regs->hob_lbal = tf->hob_lbal; 5818 regs->hob_lbam = tf->hob_lbam; 5819 regs->hob_lbah = tf->hob_lbah; 5820 regs->ctl = tf->ctl; 5821 } 5822 5823 /** 5824 * ipr_sata_done - done function for SATA commands 5825 * @ipr_cmd: ipr command struct 5826 * 5827 * This function is invoked by the interrupt handler for 5828 * ops generated by the SCSI mid-layer to SATA devices 5829 * 5830 * Return value: 5831 * none 5832 **/ 5833 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd) 5834 { 5835 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5836 struct ata_queued_cmd *qc = ipr_cmd->qc; 5837 struct ipr_sata_port *sata_port = qc->ap->private_data; 5838 struct ipr_resource_entry *res = sata_port->res; 5839 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5840 5841 memcpy(&sata_port->ioasa, &ipr_cmd->ioasa.u.gata, 5842 sizeof(struct ipr_ioasa_gata)); 5843 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 5844 5845 if (be32_to_cpu(ipr_cmd->ioasa.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET) 5846 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target); 5847 5848 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 5849 qc->err_mask |= __ac_err_mask(ipr_cmd->ioasa.u.gata.status); 5850 else 5851 qc->err_mask |= ac_err_mask(ipr_cmd->ioasa.u.gata.status); 5852 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5853 ata_qc_complete(qc); 5854 } 5855 5856 /** 5857 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list 5858 * @ipr_cmd: ipr command struct 5859 * @qc: ATA queued command 5860 * 5861 **/ 5862 static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd, 5863 struct ata_queued_cmd *qc) 5864 { 5865 u32 ioadl_flags = 0; 5866 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5867 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 5868 struct ipr_ioadl64_desc *last_ioadl64 = NULL; 5869 int len = qc->nbytes; 5870 struct scatterlist *sg; 5871 unsigned int si; 5872 dma_addr_t dma_addr = ipr_cmd->dma_addr; 5873 5874 if (len == 0) 5875 return; 5876 5877 if (qc->dma_dir == DMA_TO_DEVICE) { 5878 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5879 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5880 } else if (qc->dma_dir == DMA_FROM_DEVICE) 5881 ioadl_flags = IPR_IOADL_FLAGS_READ; 5882 5883 ioarcb->data_transfer_length = cpu_to_be32(len); 5884 ioarcb->ioadl_len = 5885 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); 5886 ioarcb->u.sis64_addr_data.data_ioadl_addr = 5887 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl)); 5888 5889 for_each_sg(qc->sg, sg, qc->n_elem, si) { 5890 ioadl64->flags = cpu_to_be32(ioadl_flags); 5891 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg)); 5892 ioadl64->address = cpu_to_be64(sg_dma_address(sg)); 5893 5894 last_ioadl64 = ioadl64; 5895 ioadl64++; 5896 } 5897 5898 if (likely(last_ioadl64)) 5899 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5900 } 5901 5902 /** 5903 * ipr_build_ata_ioadl - Build an ATA scatter/gather list 5904 * @ipr_cmd: ipr command struct 5905 * @qc: ATA queued command 5906 * 5907 **/ 5908 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd, 5909 struct ata_queued_cmd *qc) 5910 { 5911 u32 ioadl_flags = 0; 5912 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5913 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 5914 struct ipr_ioadl_desc *last_ioadl = NULL; 5915 int len = qc->nbytes; 5916 struct scatterlist *sg; 5917 unsigned int si; 5918 5919 if (len == 0) 5920 return; 5921 5922 if (qc->dma_dir == DMA_TO_DEVICE) { 5923 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5924 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5925 ioarcb->data_transfer_length = cpu_to_be32(len); 5926 ioarcb->ioadl_len = 5927 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5928 } else if (qc->dma_dir == DMA_FROM_DEVICE) { 5929 ioadl_flags = IPR_IOADL_FLAGS_READ; 5930 ioarcb->read_data_transfer_length = cpu_to_be32(len); 5931 ioarcb->read_ioadl_len = 5932 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5933 } 5934 5935 for_each_sg(qc->sg, sg, qc->n_elem, si) { 5936 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 5937 ioadl->address = cpu_to_be32(sg_dma_address(sg)); 5938 5939 last_ioadl = ioadl; 5940 ioadl++; 5941 } 5942 5943 if (likely(last_ioadl)) 5944 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5945 } 5946 5947 /** 5948 * ipr_qc_issue - Issue a SATA qc to a device 5949 * @qc: queued command 5950 * 5951 * Return value: 5952 * 0 if success 5953 **/ 5954 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc) 5955 { 5956 struct ata_port *ap = qc->ap; 5957 struct ipr_sata_port *sata_port = ap->private_data; 5958 struct ipr_resource_entry *res = sata_port->res; 5959 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5960 struct ipr_cmnd *ipr_cmd; 5961 struct ipr_ioarcb *ioarcb; 5962 struct ipr_ioarcb_ata_regs *regs; 5963 5964 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead)) 5965 return AC_ERR_SYSTEM; 5966 5967 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 5968 ioarcb = &ipr_cmd->ioarcb; 5969 5970 if (ioa_cfg->sis64) { 5971 regs = &ipr_cmd->i.ata_ioadl.regs; 5972 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); 5973 } else 5974 regs = &ioarcb->u.add_data.u.regs; 5975 5976 memset(regs, 0, sizeof(*regs)); 5977 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs)); 5978 5979 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 5980 ipr_cmd->qc = qc; 5981 ipr_cmd->done = ipr_sata_done; 5982 ipr_cmd->ioarcb.res_handle = res->res_handle; 5983 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU; 5984 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 5985 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 5986 ipr_cmd->dma_use_sg = qc->n_elem; 5987 5988 if (ioa_cfg->sis64) 5989 ipr_build_ata_ioadl64(ipr_cmd, qc); 5990 else 5991 ipr_build_ata_ioadl(ipr_cmd, qc); 5992 5993 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 5994 ipr_copy_sata_tf(regs, &qc->tf); 5995 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN); 5996 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); 5997 5998 switch (qc->tf.protocol) { 5999 case ATA_PROT_NODATA: 6000 case ATA_PROT_PIO: 6001 break; 6002 6003 case ATA_PROT_DMA: 6004 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 6005 break; 6006 6007 case ATAPI_PROT_PIO: 6008 case ATAPI_PROT_NODATA: 6009 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 6010 break; 6011 6012 case ATAPI_PROT_DMA: 6013 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 6014 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 6015 break; 6016 6017 default: 6018 WARN_ON(1); 6019 return AC_ERR_INVALID; 6020 } 6021 6022 mb(); 6023 6024 ipr_send_command(ipr_cmd); 6025 6026 return 0; 6027 } 6028 6029 /** 6030 * ipr_qc_fill_rtf - Read result TF 6031 * @qc: ATA queued command 6032 * 6033 * Return value: 6034 * true 6035 **/ 6036 static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc) 6037 { 6038 struct ipr_sata_port *sata_port = qc->ap->private_data; 6039 struct ipr_ioasa_gata *g = &sata_port->ioasa; 6040 struct ata_taskfile *tf = &qc->result_tf; 6041 6042 tf->feature = g->error; 6043 tf->nsect = g->nsect; 6044 tf->lbal = g->lbal; 6045 tf->lbam = g->lbam; 6046 tf->lbah = g->lbah; 6047 tf->device = g->device; 6048 tf->command = g->status; 6049 tf->hob_nsect = g->hob_nsect; 6050 tf->hob_lbal = g->hob_lbal; 6051 tf->hob_lbam = g->hob_lbam; 6052 tf->hob_lbah = g->hob_lbah; 6053 tf->ctl = g->alt_status; 6054 6055 return true; 6056 } 6057 6058 static struct ata_port_operations ipr_sata_ops = { 6059 .phy_reset = ipr_ata_phy_reset, 6060 .hardreset = ipr_sata_reset, 6061 .post_internal_cmd = ipr_ata_post_internal, 6062 .qc_prep = ata_noop_qc_prep, 6063 .qc_issue = ipr_qc_issue, 6064 .qc_fill_rtf = ipr_qc_fill_rtf, 6065 .port_start = ata_sas_port_start, 6066 .port_stop = ata_sas_port_stop 6067 }; 6068 6069 static struct ata_port_info sata_port_info = { 6070 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET | 6071 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA, 6072 .pio_mask = 0x10, /* pio4 */ 6073 .mwdma_mask = 0x07, 6074 .udma_mask = 0x7f, /* udma0-6 */ 6075 .port_ops = &ipr_sata_ops 6076 }; 6077 6078 #ifdef CONFIG_PPC_PSERIES 6079 static const u16 ipr_blocked_processors[] = { 6080 PV_NORTHSTAR, 6081 PV_PULSAR, 6082 PV_POWER4, 6083 PV_ICESTAR, 6084 PV_SSTAR, 6085 PV_POWER4p, 6086 PV_630, 6087 PV_630p 6088 }; 6089 6090 /** 6091 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware 6092 * @ioa_cfg: ioa cfg struct 6093 * 6094 * Adapters that use Gemstone revision < 3.1 do not work reliably on 6095 * certain pSeries hardware. This function determines if the given 6096 * adapter is in one of these confgurations or not. 6097 * 6098 * Return value: 6099 * 1 if adapter is not supported / 0 if adapter is supported 6100 **/ 6101 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) 6102 { 6103 int i; 6104 6105 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) { 6106 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){ 6107 if (__is_processor(ipr_blocked_processors[i])) 6108 return 1; 6109 } 6110 } 6111 return 0; 6112 } 6113 #else 6114 #define ipr_invalid_adapter(ioa_cfg) 0 6115 #endif 6116 6117 /** 6118 * ipr_ioa_bringdown_done - IOA bring down completion. 6119 * @ipr_cmd: ipr command struct 6120 * 6121 * This function processes the completion of an adapter bring down. 6122 * It wakes any reset sleepers. 6123 * 6124 * Return value: 6125 * IPR_RC_JOB_RETURN 6126 **/ 6127 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) 6128 { 6129 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6130 6131 ENTER; 6132 ioa_cfg->in_reset_reload = 0; 6133 ioa_cfg->reset_retries = 0; 6134 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6135 wake_up_all(&ioa_cfg->reset_wait_q); 6136 6137 spin_unlock_irq(ioa_cfg->host->host_lock); 6138 scsi_unblock_requests(ioa_cfg->host); 6139 spin_lock_irq(ioa_cfg->host->host_lock); 6140 LEAVE; 6141 6142 return IPR_RC_JOB_RETURN; 6143 } 6144 6145 /** 6146 * ipr_ioa_reset_done - IOA reset completion. 6147 * @ipr_cmd: ipr command struct 6148 * 6149 * This function processes the completion of an adapter reset. 6150 * It schedules any necessary mid-layer add/removes and 6151 * wakes any reset sleepers. 6152 * 6153 * Return value: 6154 * IPR_RC_JOB_RETURN 6155 **/ 6156 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) 6157 { 6158 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6159 struct ipr_resource_entry *res; 6160 struct ipr_hostrcb *hostrcb, *temp; 6161 int i = 0; 6162 6163 ENTER; 6164 ioa_cfg->in_reset_reload = 0; 6165 ioa_cfg->allow_cmds = 1; 6166 ioa_cfg->reset_cmd = NULL; 6167 ioa_cfg->doorbell |= IPR_RUNTIME_RESET; 6168 6169 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 6170 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) { 6171 ipr_trace; 6172 break; 6173 } 6174 } 6175 schedule_work(&ioa_cfg->work_q); 6176 6177 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) { 6178 list_del(&hostrcb->queue); 6179 if (i++ < IPR_NUM_LOG_HCAMS) 6180 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 6181 else 6182 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 6183 } 6184 6185 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS); 6186 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n"); 6187 6188 ioa_cfg->reset_retries = 0; 6189 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6190 wake_up_all(&ioa_cfg->reset_wait_q); 6191 6192 spin_unlock(ioa_cfg->host->host_lock); 6193 scsi_unblock_requests(ioa_cfg->host); 6194 spin_lock(ioa_cfg->host->host_lock); 6195 6196 if (!ioa_cfg->allow_cmds) 6197 scsi_block_requests(ioa_cfg->host); 6198 6199 LEAVE; 6200 return IPR_RC_JOB_RETURN; 6201 } 6202 6203 /** 6204 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer 6205 * @supported_dev: supported device struct 6206 * @vpids: vendor product id struct 6207 * 6208 * Return value: 6209 * none 6210 **/ 6211 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, 6212 struct ipr_std_inq_vpids *vpids) 6213 { 6214 memset(supported_dev, 0, sizeof(struct ipr_supported_device)); 6215 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); 6216 supported_dev->num_records = 1; 6217 supported_dev->data_length = 6218 cpu_to_be16(sizeof(struct ipr_supported_device)); 6219 supported_dev->reserved = 0; 6220 } 6221 6222 /** 6223 * ipr_set_supported_devs - Send Set Supported Devices for a device 6224 * @ipr_cmd: ipr command struct 6225 * 6226 * This function sends a Set Supported Devices to the adapter 6227 * 6228 * Return value: 6229 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6230 **/ 6231 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) 6232 { 6233 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6234 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; 6235 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6236 struct ipr_resource_entry *res = ipr_cmd->u.res; 6237 6238 ipr_cmd->job_step = ipr_ioa_reset_done; 6239 6240 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { 6241 if (!ipr_is_scsi_disk(res)) 6242 continue; 6243 6244 ipr_cmd->u.res = res; 6245 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids); 6246 6247 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6248 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6249 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6250 6251 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; 6252 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES; 6253 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; 6254 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; 6255 6256 ipr_init_ioadl(ipr_cmd, 6257 ioa_cfg->vpd_cbs_dma + 6258 offsetof(struct ipr_misc_cbs, supp_dev), 6259 sizeof(struct ipr_supported_device), 6260 IPR_IOADL_FLAGS_WRITE_LAST); 6261 6262 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 6263 IPR_SET_SUP_DEVICE_TIMEOUT); 6264 6265 if (!ioa_cfg->sis64) 6266 ipr_cmd->job_step = ipr_set_supported_devs; 6267 return IPR_RC_JOB_RETURN; 6268 } 6269 6270 return IPR_RC_JOB_CONTINUE; 6271 } 6272 6273 /** 6274 * ipr_get_mode_page - Locate specified mode page 6275 * @mode_pages: mode page buffer 6276 * @page_code: page code to find 6277 * @len: minimum required length for mode page 6278 * 6279 * Return value: 6280 * pointer to mode page / NULL on failure 6281 **/ 6282 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, 6283 u32 page_code, u32 len) 6284 { 6285 struct ipr_mode_page_hdr *mode_hdr; 6286 u32 page_length; 6287 u32 length; 6288 6289 if (!mode_pages || (mode_pages->hdr.length == 0)) 6290 return NULL; 6291 6292 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; 6293 mode_hdr = (struct ipr_mode_page_hdr *) 6294 (mode_pages->data + mode_pages->hdr.block_desc_len); 6295 6296 while (length) { 6297 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { 6298 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) 6299 return mode_hdr; 6300 break; 6301 } else { 6302 page_length = (sizeof(struct ipr_mode_page_hdr) + 6303 mode_hdr->page_length); 6304 length -= page_length; 6305 mode_hdr = (struct ipr_mode_page_hdr *) 6306 ((unsigned long)mode_hdr + page_length); 6307 } 6308 } 6309 return NULL; 6310 } 6311 6312 /** 6313 * ipr_check_term_power - Check for term power errors 6314 * @ioa_cfg: ioa config struct 6315 * @mode_pages: IOAFP mode pages buffer 6316 * 6317 * Check the IOAFP's mode page 28 for term power errors 6318 * 6319 * Return value: 6320 * nothing 6321 **/ 6322 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, 6323 struct ipr_mode_pages *mode_pages) 6324 { 6325 int i; 6326 int entry_length; 6327 struct ipr_dev_bus_entry *bus; 6328 struct ipr_mode_page28 *mode_page; 6329 6330 mode_page = ipr_get_mode_page(mode_pages, 0x28, 6331 sizeof(struct ipr_mode_page28)); 6332 6333 entry_length = mode_page->entry_length; 6334 6335 bus = mode_page->bus; 6336 6337 for (i = 0; i < mode_page->num_entries; i++) { 6338 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { 6339 dev_err(&ioa_cfg->pdev->dev, 6340 "Term power is absent on scsi bus %d\n", 6341 bus->res_addr.bus); 6342 } 6343 6344 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); 6345 } 6346 } 6347 6348 /** 6349 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table 6350 * @ioa_cfg: ioa config struct 6351 * 6352 * Looks through the config table checking for SES devices. If 6353 * the SES device is in the SES table indicating a maximum SCSI 6354 * bus speed, the speed is limited for the bus. 6355 * 6356 * Return value: 6357 * none 6358 **/ 6359 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) 6360 { 6361 u32 max_xfer_rate; 6362 int i; 6363 6364 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 6365 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i, 6366 ioa_cfg->bus_attr[i].bus_width); 6367 6368 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) 6369 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; 6370 } 6371 } 6372 6373 /** 6374 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 6375 * @ioa_cfg: ioa config struct 6376 * @mode_pages: mode page 28 buffer 6377 * 6378 * Updates mode page 28 based on driver configuration 6379 * 6380 * Return value: 6381 * none 6382 **/ 6383 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, 6384 struct ipr_mode_pages *mode_pages) 6385 { 6386 int i, entry_length; 6387 struct ipr_dev_bus_entry *bus; 6388 struct ipr_bus_attributes *bus_attr; 6389 struct ipr_mode_page28 *mode_page; 6390 6391 mode_page = ipr_get_mode_page(mode_pages, 0x28, 6392 sizeof(struct ipr_mode_page28)); 6393 6394 entry_length = mode_page->entry_length; 6395 6396 /* Loop for each device bus entry */ 6397 for (i = 0, bus = mode_page->bus; 6398 i < mode_page->num_entries; 6399 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { 6400 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { 6401 dev_err(&ioa_cfg->pdev->dev, 6402 "Invalid resource address reported: 0x%08X\n", 6403 IPR_GET_PHYS_LOC(bus->res_addr)); 6404 continue; 6405 } 6406 6407 bus_attr = &ioa_cfg->bus_attr[i]; 6408 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; 6409 bus->bus_width = bus_attr->bus_width; 6410 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); 6411 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; 6412 if (bus_attr->qas_enabled) 6413 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; 6414 else 6415 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; 6416 } 6417 } 6418 6419 /** 6420 * ipr_build_mode_select - Build a mode select command 6421 * @ipr_cmd: ipr command struct 6422 * @res_handle: resource handle to send command to 6423 * @parm: Byte 2 of Mode Sense command 6424 * @dma_addr: DMA buffer address 6425 * @xfer_len: data transfer length 6426 * 6427 * Return value: 6428 * none 6429 **/ 6430 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, 6431 __be32 res_handle, u8 parm, 6432 dma_addr_t dma_addr, u8 xfer_len) 6433 { 6434 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6435 6436 ioarcb->res_handle = res_handle; 6437 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6438 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6439 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; 6440 ioarcb->cmd_pkt.cdb[1] = parm; 6441 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6442 6443 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST); 6444 } 6445 6446 /** 6447 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA 6448 * @ipr_cmd: ipr command struct 6449 * 6450 * This function sets up the SCSI bus attributes and sends 6451 * a Mode Select for Page 28 to activate them. 6452 * 6453 * Return value: 6454 * IPR_RC_JOB_RETURN 6455 **/ 6456 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) 6457 { 6458 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6459 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 6460 int length; 6461 6462 ENTER; 6463 ipr_scsi_bus_speed_limit(ioa_cfg); 6464 ipr_check_term_power(ioa_cfg, mode_pages); 6465 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); 6466 length = mode_pages->hdr.length + 1; 6467 mode_pages->hdr.length = 0; 6468 6469 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 6470 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 6471 length); 6472 6473 ipr_cmd->job_step = ipr_set_supported_devs; 6474 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 6475 struct ipr_resource_entry, queue); 6476 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6477 6478 LEAVE; 6479 return IPR_RC_JOB_RETURN; 6480 } 6481 6482 /** 6483 * ipr_build_mode_sense - Builds a mode sense command 6484 * @ipr_cmd: ipr command struct 6485 * @res: resource entry struct 6486 * @parm: Byte 2 of mode sense command 6487 * @dma_addr: DMA address of mode sense buffer 6488 * @xfer_len: Size of DMA buffer 6489 * 6490 * Return value: 6491 * none 6492 **/ 6493 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, 6494 __be32 res_handle, 6495 u8 parm, dma_addr_t dma_addr, u8 xfer_len) 6496 { 6497 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6498 6499 ioarcb->res_handle = res_handle; 6500 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; 6501 ioarcb->cmd_pkt.cdb[2] = parm; 6502 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6503 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6504 6505 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); 6506 } 6507 6508 /** 6509 * ipr_reset_cmd_failed - Handle failure of IOA reset command 6510 * @ipr_cmd: ipr command struct 6511 * 6512 * This function handles the failure of an IOA bringup command. 6513 * 6514 * Return value: 6515 * IPR_RC_JOB_RETURN 6516 **/ 6517 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) 6518 { 6519 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6520 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 6521 6522 dev_err(&ioa_cfg->pdev->dev, 6523 "0x%02X failed with IOASC: 0x%08X\n", 6524 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); 6525 6526 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 6527 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6528 return IPR_RC_JOB_RETURN; 6529 } 6530 6531 /** 6532 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense 6533 * @ipr_cmd: ipr command struct 6534 * 6535 * This function handles the failure of a Mode Sense to the IOAFP. 6536 * Some adapters do not handle all mode pages. 6537 * 6538 * Return value: 6539 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6540 **/ 6541 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) 6542 { 6543 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6544 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 6545 6546 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 6547 ipr_cmd->job_step = ipr_set_supported_devs; 6548 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 6549 struct ipr_resource_entry, queue); 6550 return IPR_RC_JOB_CONTINUE; 6551 } 6552 6553 return ipr_reset_cmd_failed(ipr_cmd); 6554 } 6555 6556 /** 6557 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA 6558 * @ipr_cmd: ipr command struct 6559 * 6560 * This function send a Page 28 mode sense to the IOA to 6561 * retrieve SCSI bus attributes. 6562 * 6563 * Return value: 6564 * IPR_RC_JOB_RETURN 6565 **/ 6566 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) 6567 { 6568 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6569 6570 ENTER; 6571 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 6572 0x28, ioa_cfg->vpd_cbs_dma + 6573 offsetof(struct ipr_misc_cbs, mode_pages), 6574 sizeof(struct ipr_mode_pages)); 6575 6576 ipr_cmd->job_step = ipr_ioafp_mode_select_page28; 6577 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; 6578 6579 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6580 6581 LEAVE; 6582 return IPR_RC_JOB_RETURN; 6583 } 6584 6585 /** 6586 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA 6587 * @ipr_cmd: ipr command struct 6588 * 6589 * This function enables dual IOA RAID support if possible. 6590 * 6591 * Return value: 6592 * IPR_RC_JOB_RETURN 6593 **/ 6594 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd) 6595 { 6596 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6597 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 6598 struct ipr_mode_page24 *mode_page; 6599 int length; 6600 6601 ENTER; 6602 mode_page = ipr_get_mode_page(mode_pages, 0x24, 6603 sizeof(struct ipr_mode_page24)); 6604 6605 if (mode_page) 6606 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF; 6607 6608 length = mode_pages->hdr.length + 1; 6609 mode_pages->hdr.length = 0; 6610 6611 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 6612 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 6613 length); 6614 6615 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6616 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6617 6618 LEAVE; 6619 return IPR_RC_JOB_RETURN; 6620 } 6621 6622 /** 6623 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense 6624 * @ipr_cmd: ipr command struct 6625 * 6626 * This function handles the failure of a Mode Sense to the IOAFP. 6627 * Some adapters do not handle all mode pages. 6628 * 6629 * Return value: 6630 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6631 **/ 6632 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd) 6633 { 6634 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 6635 6636 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 6637 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6638 return IPR_RC_JOB_CONTINUE; 6639 } 6640 6641 return ipr_reset_cmd_failed(ipr_cmd); 6642 } 6643 6644 /** 6645 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA 6646 * @ipr_cmd: ipr command struct 6647 * 6648 * This function send a mode sense to the IOA to retrieve 6649 * the IOA Advanced Function Control mode page. 6650 * 6651 * Return value: 6652 * IPR_RC_JOB_RETURN 6653 **/ 6654 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd) 6655 { 6656 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6657 6658 ENTER; 6659 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 6660 0x24, ioa_cfg->vpd_cbs_dma + 6661 offsetof(struct ipr_misc_cbs, mode_pages), 6662 sizeof(struct ipr_mode_pages)); 6663 6664 ipr_cmd->job_step = ipr_ioafp_mode_select_page24; 6665 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed; 6666 6667 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6668 6669 LEAVE; 6670 return IPR_RC_JOB_RETURN; 6671 } 6672 6673 /** 6674 * ipr_init_res_table - Initialize the resource table 6675 * @ipr_cmd: ipr command struct 6676 * 6677 * This function looks through the existing resource table, comparing 6678 * it with the config table. This function will take care of old/new 6679 * devices and schedule adding/removing them from the mid-layer 6680 * as appropriate. 6681 * 6682 * Return value: 6683 * IPR_RC_JOB_CONTINUE 6684 **/ 6685 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) 6686 { 6687 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6688 struct ipr_resource_entry *res, *temp; 6689 struct ipr_config_table_entry_wrapper cfgtew; 6690 int entries, found, flag, i; 6691 LIST_HEAD(old_res); 6692 6693 ENTER; 6694 if (ioa_cfg->sis64) 6695 flag = ioa_cfg->u.cfg_table64->hdr64.flags; 6696 else 6697 flag = ioa_cfg->u.cfg_table->hdr.flags; 6698 6699 if (flag & IPR_UCODE_DOWNLOAD_REQ) 6700 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n"); 6701 6702 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) 6703 list_move_tail(&res->queue, &old_res); 6704 6705 if (ioa_cfg->sis64) 6706 entries = ioa_cfg->u.cfg_table64->hdr64.num_entries; 6707 else 6708 entries = ioa_cfg->u.cfg_table->hdr.num_entries; 6709 6710 for (i = 0; i < entries; i++) { 6711 if (ioa_cfg->sis64) 6712 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i]; 6713 else 6714 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i]; 6715 found = 0; 6716 6717 list_for_each_entry_safe(res, temp, &old_res, queue) { 6718 if (ipr_is_same_device(res, &cfgtew)) { 6719 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6720 found = 1; 6721 break; 6722 } 6723 } 6724 6725 if (!found) { 6726 if (list_empty(&ioa_cfg->free_res_q)) { 6727 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n"); 6728 break; 6729 } 6730 6731 found = 1; 6732 res = list_entry(ioa_cfg->free_res_q.next, 6733 struct ipr_resource_entry, queue); 6734 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6735 ipr_init_res_entry(res, &cfgtew); 6736 res->add_to_ml = 1; 6737 } 6738 6739 if (found) 6740 ipr_update_res_entry(res, &cfgtew); 6741 } 6742 6743 list_for_each_entry_safe(res, temp, &old_res, queue) { 6744 if (res->sdev) { 6745 res->del_from_ml = 1; 6746 res->res_handle = IPR_INVALID_RES_HANDLE; 6747 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6748 } 6749 } 6750 6751 list_for_each_entry_safe(res, temp, &old_res, queue) { 6752 ipr_clear_res_target(res); 6753 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 6754 } 6755 6756 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 6757 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24; 6758 else 6759 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6760 6761 LEAVE; 6762 return IPR_RC_JOB_CONTINUE; 6763 } 6764 6765 /** 6766 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. 6767 * @ipr_cmd: ipr command struct 6768 * 6769 * This function sends a Query IOA Configuration command 6770 * to the adapter to retrieve the IOA configuration table. 6771 * 6772 * Return value: 6773 * IPR_RC_JOB_RETURN 6774 **/ 6775 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) 6776 { 6777 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6778 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6779 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 6780 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 6781 6782 ENTER; 6783 if (cap->cap & IPR_CAP_DUAL_IOA_RAID) 6784 ioa_cfg->dual_raid = 1; 6785 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", 6786 ucode_vpd->major_release, ucode_vpd->card_type, 6787 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); 6788 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6789 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6790 6791 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; 6792 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff; 6793 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff; 6794 6795 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size, 6796 IPR_IOADL_FLAGS_READ_LAST); 6797 6798 ipr_cmd->job_step = ipr_init_res_table; 6799 6800 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6801 6802 LEAVE; 6803 return IPR_RC_JOB_RETURN; 6804 } 6805 6806 /** 6807 * ipr_ioafp_inquiry - Send an Inquiry to the adapter. 6808 * @ipr_cmd: ipr command struct 6809 * 6810 * This utility function sends an inquiry to the adapter. 6811 * 6812 * Return value: 6813 * none 6814 **/ 6815 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, 6816 dma_addr_t dma_addr, u8 xfer_len) 6817 { 6818 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6819 6820 ENTER; 6821 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6822 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6823 6824 ioarcb->cmd_pkt.cdb[0] = INQUIRY; 6825 ioarcb->cmd_pkt.cdb[1] = flags; 6826 ioarcb->cmd_pkt.cdb[2] = page; 6827 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6828 6829 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); 6830 6831 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6832 LEAVE; 6833 } 6834 6835 /** 6836 * ipr_inquiry_page_supported - Is the given inquiry page supported 6837 * @page0: inquiry page 0 buffer 6838 * @page: page code. 6839 * 6840 * This function determines if the specified inquiry page is supported. 6841 * 6842 * Return value: 6843 * 1 if page is supported / 0 if not 6844 **/ 6845 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) 6846 { 6847 int i; 6848 6849 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) 6850 if (page0->page[i] == page) 6851 return 1; 6852 6853 return 0; 6854 } 6855 6856 /** 6857 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter. 6858 * @ipr_cmd: ipr command struct 6859 * 6860 * This function sends a Page 0xD0 inquiry to the adapter 6861 * to retrieve adapter capabilities. 6862 * 6863 * Return value: 6864 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6865 **/ 6866 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd) 6867 { 6868 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6869 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; 6870 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 6871 6872 ENTER; 6873 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; 6874 memset(cap, 0, sizeof(*cap)); 6875 6876 if (ipr_inquiry_page_supported(page0, 0xD0)) { 6877 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0, 6878 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap), 6879 sizeof(struct ipr_inquiry_cap)); 6880 return IPR_RC_JOB_RETURN; 6881 } 6882 6883 LEAVE; 6884 return IPR_RC_JOB_CONTINUE; 6885 } 6886 6887 /** 6888 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. 6889 * @ipr_cmd: ipr command struct 6890 * 6891 * This function sends a Page 3 inquiry to the adapter 6892 * to retrieve software VPD information. 6893 * 6894 * Return value: 6895 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6896 **/ 6897 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) 6898 { 6899 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6900 6901 ENTER; 6902 6903 ipr_cmd->job_step = ipr_ioafp_cap_inquiry; 6904 6905 ipr_ioafp_inquiry(ipr_cmd, 1, 3, 6906 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), 6907 sizeof(struct ipr_inquiry_page3)); 6908 6909 LEAVE; 6910 return IPR_RC_JOB_RETURN; 6911 } 6912 6913 /** 6914 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. 6915 * @ipr_cmd: ipr command struct 6916 * 6917 * This function sends a Page 0 inquiry to the adapter 6918 * to retrieve supported inquiry pages. 6919 * 6920 * Return value: 6921 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6922 **/ 6923 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) 6924 { 6925 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6926 char type[5]; 6927 6928 ENTER; 6929 6930 /* Grab the type out of the VPD and store it away */ 6931 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); 6932 type[4] = '\0'; 6933 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); 6934 6935 ipr_cmd->job_step = ipr_ioafp_page3_inquiry; 6936 6937 ipr_ioafp_inquiry(ipr_cmd, 1, 0, 6938 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), 6939 sizeof(struct ipr_inquiry_page0)); 6940 6941 LEAVE; 6942 return IPR_RC_JOB_RETURN; 6943 } 6944 6945 /** 6946 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. 6947 * @ipr_cmd: ipr command struct 6948 * 6949 * This function sends a standard inquiry to the adapter. 6950 * 6951 * Return value: 6952 * IPR_RC_JOB_RETURN 6953 **/ 6954 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) 6955 { 6956 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6957 6958 ENTER; 6959 ipr_cmd->job_step = ipr_ioafp_page0_inquiry; 6960 6961 ipr_ioafp_inquiry(ipr_cmd, 0, 0, 6962 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), 6963 sizeof(struct ipr_ioa_vpd)); 6964 6965 LEAVE; 6966 return IPR_RC_JOB_RETURN; 6967 } 6968 6969 /** 6970 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ. 6971 * @ipr_cmd: ipr command struct 6972 * 6973 * This function send an Identify Host Request Response Queue 6974 * command to establish the HRRQ with the adapter. 6975 * 6976 * Return value: 6977 * IPR_RC_JOB_RETURN 6978 **/ 6979 static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd) 6980 { 6981 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6982 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6983 6984 ENTER; 6985 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n"); 6986 6987 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; 6988 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6989 6990 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6991 if (ioa_cfg->sis64) 6992 ioarcb->cmd_pkt.cdb[1] = 0x1; 6993 ioarcb->cmd_pkt.cdb[2] = 6994 ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff; 6995 ioarcb->cmd_pkt.cdb[3] = 6996 ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff; 6997 ioarcb->cmd_pkt.cdb[4] = 6998 ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff; 6999 ioarcb->cmd_pkt.cdb[5] = 7000 ((u64) ioa_cfg->host_rrq_dma) & 0xff; 7001 ioarcb->cmd_pkt.cdb[7] = 7002 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff; 7003 ioarcb->cmd_pkt.cdb[8] = 7004 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff; 7005 7006 if (ioa_cfg->sis64) { 7007 ioarcb->cmd_pkt.cdb[10] = 7008 ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff; 7009 ioarcb->cmd_pkt.cdb[11] = 7010 ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff; 7011 ioarcb->cmd_pkt.cdb[12] = 7012 ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff; 7013 ioarcb->cmd_pkt.cdb[13] = 7014 ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff; 7015 } 7016 7017 ipr_cmd->job_step = ipr_ioafp_std_inquiry; 7018 7019 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 7020 7021 LEAVE; 7022 return IPR_RC_JOB_RETURN; 7023 } 7024 7025 /** 7026 * ipr_reset_timer_done - Adapter reset timer function 7027 * @ipr_cmd: ipr command struct 7028 * 7029 * Description: This function is used in adapter reset processing 7030 * for timing events. If the reset_cmd pointer in the IOA 7031 * config struct is not this adapter's we are doing nested 7032 * resets and fail_all_ops will take care of freeing the 7033 * command block. 7034 * 7035 * Return value: 7036 * none 7037 **/ 7038 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd) 7039 { 7040 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7041 unsigned long lock_flags = 0; 7042 7043 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 7044 7045 if (ioa_cfg->reset_cmd == ipr_cmd) { 7046 list_del(&ipr_cmd->queue); 7047 ipr_cmd->done(ipr_cmd); 7048 } 7049 7050 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 7051 } 7052 7053 /** 7054 * ipr_reset_start_timer - Start a timer for adapter reset job 7055 * @ipr_cmd: ipr command struct 7056 * @timeout: timeout value 7057 * 7058 * Description: This function is used in adapter reset processing 7059 * for timing events. If the reset_cmd pointer in the IOA 7060 * config struct is not this adapter's we are doing nested 7061 * resets and fail_all_ops will take care of freeing the 7062 * command block. 7063 * 7064 * Return value: 7065 * none 7066 **/ 7067 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, 7068 unsigned long timeout) 7069 { 7070 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 7071 ipr_cmd->done = ipr_reset_ioa_job; 7072 7073 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 7074 ipr_cmd->timer.expires = jiffies + timeout; 7075 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done; 7076 add_timer(&ipr_cmd->timer); 7077 } 7078 7079 /** 7080 * ipr_init_ioa_mem - Initialize ioa_cfg control block 7081 * @ioa_cfg: ioa cfg struct 7082 * 7083 * Return value: 7084 * nothing 7085 **/ 7086 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) 7087 { 7088 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS); 7089 7090 /* Initialize Host RRQ pointers */ 7091 ioa_cfg->hrrq_start = ioa_cfg->host_rrq; 7092 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1]; 7093 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 7094 ioa_cfg->toggle_bit = 1; 7095 7096 /* Zero out config table */ 7097 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size); 7098 } 7099 7100 /** 7101 * ipr_reset_next_stage - Process IPL stage change based on feedback register. 7102 * @ipr_cmd: ipr command struct 7103 * 7104 * Return value: 7105 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7106 **/ 7107 static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd) 7108 { 7109 unsigned long stage, stage_time; 7110 u32 feedback; 7111 volatile u32 int_reg; 7112 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7113 u64 maskval = 0; 7114 7115 feedback = readl(ioa_cfg->regs.init_feedback_reg); 7116 stage = feedback & IPR_IPL_INIT_STAGE_MASK; 7117 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK; 7118 7119 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time); 7120 7121 /* sanity check the stage_time value */ 7122 if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME) 7123 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME; 7124 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT) 7125 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT; 7126 7127 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) { 7128 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg); 7129 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7130 stage_time = ioa_cfg->transop_timeout; 7131 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 7132 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) { 7133 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 7134 maskval = IPR_PCII_IPL_STAGE_CHANGE; 7135 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER; 7136 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg); 7137 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7138 return IPR_RC_JOB_CONTINUE; 7139 } 7140 7141 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 7142 ipr_cmd->timer.expires = jiffies + stage_time * HZ; 7143 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; 7144 ipr_cmd->done = ipr_reset_ioa_job; 7145 add_timer(&ipr_cmd->timer); 7146 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 7147 7148 return IPR_RC_JOB_RETURN; 7149 } 7150 7151 /** 7152 * ipr_reset_enable_ioa - Enable the IOA following a reset. 7153 * @ipr_cmd: ipr command struct 7154 * 7155 * This function reinitializes some control blocks and 7156 * enables destructive diagnostics on the adapter. 7157 * 7158 * Return value: 7159 * IPR_RC_JOB_RETURN 7160 **/ 7161 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) 7162 { 7163 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7164 volatile u32 int_reg; 7165 7166 ENTER; 7167 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 7168 ipr_init_ioa_mem(ioa_cfg); 7169 7170 ioa_cfg->allow_interrupts = 1; 7171 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 7172 7173 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 7174 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), 7175 ioa_cfg->regs.clr_interrupt_mask_reg32); 7176 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7177 return IPR_RC_JOB_CONTINUE; 7178 } 7179 7180 /* Enable destructive diagnostics on IOA */ 7181 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32); 7182 7183 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32); 7184 if (ioa_cfg->sis64) 7185 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_mask_reg); 7186 7187 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7188 7189 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n"); 7190 7191 if (ioa_cfg->sis64) { 7192 ipr_cmd->job_step = ipr_reset_next_stage; 7193 return IPR_RC_JOB_CONTINUE; 7194 } 7195 7196 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 7197 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ); 7198 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; 7199 ipr_cmd->done = ipr_reset_ioa_job; 7200 add_timer(&ipr_cmd->timer); 7201 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 7202 7203 LEAVE; 7204 return IPR_RC_JOB_RETURN; 7205 } 7206 7207 /** 7208 * ipr_reset_wait_for_dump - Wait for a dump to timeout. 7209 * @ipr_cmd: ipr command struct 7210 * 7211 * This function is invoked when an adapter dump has run out 7212 * of processing time. 7213 * 7214 * Return value: 7215 * IPR_RC_JOB_CONTINUE 7216 **/ 7217 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) 7218 { 7219 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7220 7221 if (ioa_cfg->sdt_state == GET_DUMP) 7222 ioa_cfg->sdt_state = ABORT_DUMP; 7223 7224 ipr_cmd->job_step = ipr_reset_alert; 7225 7226 return IPR_RC_JOB_CONTINUE; 7227 } 7228 7229 /** 7230 * ipr_unit_check_no_data - Log a unit check/no data error log 7231 * @ioa_cfg: ioa config struct 7232 * 7233 * Logs an error indicating the adapter unit checked, but for some 7234 * reason, we were unable to fetch the unit check buffer. 7235 * 7236 * Return value: 7237 * nothing 7238 **/ 7239 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) 7240 { 7241 ioa_cfg->errors_logged++; 7242 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n"); 7243 } 7244 7245 /** 7246 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA 7247 * @ioa_cfg: ioa config struct 7248 * 7249 * Fetches the unit check buffer from the adapter by clocking the data 7250 * through the mailbox register. 7251 * 7252 * Return value: 7253 * nothing 7254 **/ 7255 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) 7256 { 7257 unsigned long mailbox; 7258 struct ipr_hostrcb *hostrcb; 7259 struct ipr_uc_sdt sdt; 7260 int rc, length; 7261 u32 ioasc; 7262 7263 mailbox = readl(ioa_cfg->ioa_mailbox); 7264 7265 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) { 7266 ipr_unit_check_no_data(ioa_cfg); 7267 return; 7268 } 7269 7270 memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); 7271 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt, 7272 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); 7273 7274 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) || 7275 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && 7276 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { 7277 ipr_unit_check_no_data(ioa_cfg); 7278 return; 7279 } 7280 7281 /* Find length of the first sdt entry (UC buffer) */ 7282 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE) 7283 length = be32_to_cpu(sdt.entry[0].end_token); 7284 else 7285 length = (be32_to_cpu(sdt.entry[0].end_token) - 7286 be32_to_cpu(sdt.entry[0].start_token)) & 7287 IPR_FMT2_MBX_ADDR_MASK; 7288 7289 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, 7290 struct ipr_hostrcb, queue); 7291 list_del(&hostrcb->queue); 7292 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); 7293 7294 rc = ipr_get_ldump_data_section(ioa_cfg, 7295 be32_to_cpu(sdt.entry[0].start_token), 7296 (__be32 *)&hostrcb->hcam, 7297 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); 7298 7299 if (!rc) { 7300 ipr_handle_log_data(ioa_cfg, hostrcb); 7301 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 7302 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED && 7303 ioa_cfg->sdt_state == GET_DUMP) 7304 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 7305 } else 7306 ipr_unit_check_no_data(ioa_cfg); 7307 7308 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 7309 } 7310 7311 /** 7312 * ipr_reset_restore_cfg_space - Restore PCI config space. 7313 * @ipr_cmd: ipr command struct 7314 * 7315 * Description: This function restores the saved PCI config space of 7316 * the adapter, fails all outstanding ops back to the callers, and 7317 * fetches the dump/unit check if applicable to this reset. 7318 * 7319 * Return value: 7320 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7321 **/ 7322 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) 7323 { 7324 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7325 int rc; 7326 7327 ENTER; 7328 ioa_cfg->pdev->state_saved = true; 7329 rc = pci_restore_state(ioa_cfg->pdev); 7330 7331 if (rc != PCIBIOS_SUCCESSFUL) { 7332 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 7333 return IPR_RC_JOB_CONTINUE; 7334 } 7335 7336 if (ipr_set_pcix_cmd_reg(ioa_cfg)) { 7337 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 7338 return IPR_RC_JOB_CONTINUE; 7339 } 7340 7341 ipr_fail_all_ops(ioa_cfg); 7342 7343 if (ioa_cfg->ioa_unit_checked) { 7344 ioa_cfg->ioa_unit_checked = 0; 7345 ipr_get_unit_check_buffer(ioa_cfg); 7346 ipr_cmd->job_step = ipr_reset_alert; 7347 ipr_reset_start_timer(ipr_cmd, 0); 7348 return IPR_RC_JOB_RETURN; 7349 } 7350 7351 if (ioa_cfg->in_ioa_bringdown) { 7352 ipr_cmd->job_step = ipr_ioa_bringdown_done; 7353 } else { 7354 ipr_cmd->job_step = ipr_reset_enable_ioa; 7355 7356 if (GET_DUMP == ioa_cfg->sdt_state) { 7357 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT); 7358 ipr_cmd->job_step = ipr_reset_wait_for_dump; 7359 schedule_work(&ioa_cfg->work_q); 7360 return IPR_RC_JOB_RETURN; 7361 } 7362 } 7363 7364 ENTER; 7365 return IPR_RC_JOB_CONTINUE; 7366 } 7367 7368 /** 7369 * ipr_reset_bist_done - BIST has completed on the adapter. 7370 * @ipr_cmd: ipr command struct 7371 * 7372 * Description: Unblock config space and resume the reset process. 7373 * 7374 * Return value: 7375 * IPR_RC_JOB_CONTINUE 7376 **/ 7377 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd) 7378 { 7379 ENTER; 7380 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); 7381 ipr_cmd->job_step = ipr_reset_restore_cfg_space; 7382 LEAVE; 7383 return IPR_RC_JOB_CONTINUE; 7384 } 7385 7386 /** 7387 * ipr_reset_start_bist - Run BIST on the adapter. 7388 * @ipr_cmd: ipr command struct 7389 * 7390 * Description: This function runs BIST on the adapter, then delays 2 seconds. 7391 * 7392 * Return value: 7393 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7394 **/ 7395 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) 7396 { 7397 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7398 int rc; 7399 7400 ENTER; 7401 pci_block_user_cfg_access(ioa_cfg->pdev); 7402 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); 7403 7404 if (rc != PCIBIOS_SUCCESSFUL) { 7405 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); 7406 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 7407 rc = IPR_RC_JOB_CONTINUE; 7408 } else { 7409 ipr_cmd->job_step = ipr_reset_bist_done; 7410 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 7411 rc = IPR_RC_JOB_RETURN; 7412 } 7413 7414 LEAVE; 7415 return rc; 7416 } 7417 7418 /** 7419 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter 7420 * @ipr_cmd: ipr command struct 7421 * 7422 * Description: This clears PCI reset to the adapter and delays two seconds. 7423 * 7424 * Return value: 7425 * IPR_RC_JOB_RETURN 7426 **/ 7427 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd) 7428 { 7429 ENTER; 7430 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset); 7431 ipr_cmd->job_step = ipr_reset_bist_done; 7432 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 7433 LEAVE; 7434 return IPR_RC_JOB_RETURN; 7435 } 7436 7437 /** 7438 * ipr_reset_slot_reset - Reset the PCI slot of the adapter. 7439 * @ipr_cmd: ipr command struct 7440 * 7441 * Description: This asserts PCI reset to the adapter. 7442 * 7443 * Return value: 7444 * IPR_RC_JOB_RETURN 7445 **/ 7446 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd) 7447 { 7448 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7449 struct pci_dev *pdev = ioa_cfg->pdev; 7450 7451 ENTER; 7452 pci_block_user_cfg_access(pdev); 7453 pci_set_pcie_reset_state(pdev, pcie_warm_reset); 7454 ipr_cmd->job_step = ipr_reset_slot_reset_done; 7455 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT); 7456 LEAVE; 7457 return IPR_RC_JOB_RETURN; 7458 } 7459 7460 /** 7461 * ipr_reset_allowed - Query whether or not IOA can be reset 7462 * @ioa_cfg: ioa config struct 7463 * 7464 * Return value: 7465 * 0 if reset not allowed / non-zero if reset is allowed 7466 **/ 7467 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) 7468 { 7469 volatile u32 temp_reg; 7470 7471 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 7472 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); 7473 } 7474 7475 /** 7476 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. 7477 * @ipr_cmd: ipr command struct 7478 * 7479 * Description: This function waits for adapter permission to run BIST, 7480 * then runs BIST. If the adapter does not give permission after a 7481 * reasonable time, we will reset the adapter anyway. The impact of 7482 * resetting the adapter without warning the adapter is the risk of 7483 * losing the persistent error log on the adapter. If the adapter is 7484 * reset while it is writing to the flash on the adapter, the flash 7485 * segment will have bad ECC and be zeroed. 7486 * 7487 * Return value: 7488 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7489 **/ 7490 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) 7491 { 7492 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7493 int rc = IPR_RC_JOB_RETURN; 7494 7495 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { 7496 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; 7497 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 7498 } else { 7499 ipr_cmd->job_step = ioa_cfg->reset; 7500 rc = IPR_RC_JOB_CONTINUE; 7501 } 7502 7503 return rc; 7504 } 7505 7506 /** 7507 * ipr_reset_alert_part2 - Alert the adapter of a pending reset 7508 * @ipr_cmd: ipr command struct 7509 * 7510 * Description: This function alerts the adapter that it will be reset. 7511 * If memory space is not currently enabled, proceed directly 7512 * to running BIST on the adapter. The timer must always be started 7513 * so we guarantee we do not run BIST from ipr_isr. 7514 * 7515 * Return value: 7516 * IPR_RC_JOB_RETURN 7517 **/ 7518 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) 7519 { 7520 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7521 u16 cmd_reg; 7522 int rc; 7523 7524 ENTER; 7525 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg); 7526 7527 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { 7528 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 7529 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32); 7530 ipr_cmd->job_step = ipr_reset_wait_to_start_bist; 7531 } else { 7532 ipr_cmd->job_step = ioa_cfg->reset; 7533 } 7534 7535 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; 7536 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 7537 7538 LEAVE; 7539 return IPR_RC_JOB_RETURN; 7540 } 7541 7542 /** 7543 * ipr_reset_ucode_download_done - Microcode download completion 7544 * @ipr_cmd: ipr command struct 7545 * 7546 * Description: This function unmaps the microcode download buffer. 7547 * 7548 * Return value: 7549 * IPR_RC_JOB_CONTINUE 7550 **/ 7551 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) 7552 { 7553 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7554 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 7555 7556 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist, 7557 sglist->num_sg, DMA_TO_DEVICE); 7558 7559 ipr_cmd->job_step = ipr_reset_alert; 7560 return IPR_RC_JOB_CONTINUE; 7561 } 7562 7563 /** 7564 * ipr_reset_ucode_download - Download microcode to the adapter 7565 * @ipr_cmd: ipr command struct 7566 * 7567 * Description: This function checks to see if it there is microcode 7568 * to download to the adapter. If there is, a download is performed. 7569 * 7570 * Return value: 7571 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7572 **/ 7573 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) 7574 { 7575 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7576 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 7577 7578 ENTER; 7579 ipr_cmd->job_step = ipr_reset_alert; 7580 7581 if (!sglist) 7582 return IPR_RC_JOB_CONTINUE; 7583 7584 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7585 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 7586 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; 7587 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; 7588 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; 7589 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; 7590 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; 7591 7592 if (ioa_cfg->sis64) 7593 ipr_build_ucode_ioadl64(ipr_cmd, sglist); 7594 else 7595 ipr_build_ucode_ioadl(ipr_cmd, sglist); 7596 ipr_cmd->job_step = ipr_reset_ucode_download_done; 7597 7598 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 7599 IPR_WRITE_BUFFER_TIMEOUT); 7600 7601 LEAVE; 7602 return IPR_RC_JOB_RETURN; 7603 } 7604 7605 /** 7606 * ipr_reset_shutdown_ioa - Shutdown the adapter 7607 * @ipr_cmd: ipr command struct 7608 * 7609 * Description: This function issues an adapter shutdown of the 7610 * specified type to the specified adapter as part of the 7611 * adapter reset job. 7612 * 7613 * Return value: 7614 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7615 **/ 7616 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) 7617 { 7618 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7619 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; 7620 unsigned long timeout; 7621 int rc = IPR_RC_JOB_CONTINUE; 7622 7623 ENTER; 7624 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) { 7625 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7626 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 7627 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 7628 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; 7629 7630 if (shutdown_type == IPR_SHUTDOWN_NORMAL) 7631 timeout = IPR_SHUTDOWN_TIMEOUT; 7632 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) 7633 timeout = IPR_INTERNAL_TIMEOUT; 7634 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 7635 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO; 7636 else 7637 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; 7638 7639 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); 7640 7641 rc = IPR_RC_JOB_RETURN; 7642 ipr_cmd->job_step = ipr_reset_ucode_download; 7643 } else 7644 ipr_cmd->job_step = ipr_reset_alert; 7645 7646 LEAVE; 7647 return rc; 7648 } 7649 7650 /** 7651 * ipr_reset_ioa_job - Adapter reset job 7652 * @ipr_cmd: ipr command struct 7653 * 7654 * Description: This function is the job router for the adapter reset job. 7655 * 7656 * Return value: 7657 * none 7658 **/ 7659 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) 7660 { 7661 u32 rc, ioasc; 7662 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7663 7664 do { 7665 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 7666 7667 if (ioa_cfg->reset_cmd != ipr_cmd) { 7668 /* 7669 * We are doing nested adapter resets and this is 7670 * not the current reset job. 7671 */ 7672 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 7673 return; 7674 } 7675 7676 if (IPR_IOASC_SENSE_KEY(ioasc)) { 7677 rc = ipr_cmd->job_step_failed(ipr_cmd); 7678 if (rc == IPR_RC_JOB_RETURN) 7679 return; 7680 } 7681 7682 ipr_reinit_ipr_cmnd(ipr_cmd); 7683 ipr_cmd->job_step_failed = ipr_reset_cmd_failed; 7684 rc = ipr_cmd->job_step(ipr_cmd); 7685 } while(rc == IPR_RC_JOB_CONTINUE); 7686 } 7687 7688 /** 7689 * _ipr_initiate_ioa_reset - Initiate an adapter reset 7690 * @ioa_cfg: ioa config struct 7691 * @job_step: first job step of reset job 7692 * @shutdown_type: shutdown type 7693 * 7694 * Description: This function will initiate the reset of the given adapter 7695 * starting at the selected job step. 7696 * If the caller needs to wait on the completion of the reset, 7697 * the caller must sleep on the reset_wait_q. 7698 * 7699 * Return value: 7700 * none 7701 **/ 7702 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 7703 int (*job_step) (struct ipr_cmnd *), 7704 enum ipr_shutdown_type shutdown_type) 7705 { 7706 struct ipr_cmnd *ipr_cmd; 7707 7708 ioa_cfg->in_reset_reload = 1; 7709 ioa_cfg->allow_cmds = 0; 7710 scsi_block_requests(ioa_cfg->host); 7711 7712 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 7713 ioa_cfg->reset_cmd = ipr_cmd; 7714 ipr_cmd->job_step = job_step; 7715 ipr_cmd->u.shutdown_type = shutdown_type; 7716 7717 ipr_reset_ioa_job(ipr_cmd); 7718 } 7719 7720 /** 7721 * ipr_initiate_ioa_reset - Initiate an adapter reset 7722 * @ioa_cfg: ioa config struct 7723 * @shutdown_type: shutdown type 7724 * 7725 * Description: This function will initiate the reset of the given adapter. 7726 * If the caller needs to wait on the completion of the reset, 7727 * the caller must sleep on the reset_wait_q. 7728 * 7729 * Return value: 7730 * none 7731 **/ 7732 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 7733 enum ipr_shutdown_type shutdown_type) 7734 { 7735 if (ioa_cfg->ioa_is_dead) 7736 return; 7737 7738 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP) 7739 ioa_cfg->sdt_state = ABORT_DUMP; 7740 7741 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { 7742 dev_err(&ioa_cfg->pdev->dev, 7743 "IOA taken offline - error recovery failed\n"); 7744 7745 ioa_cfg->reset_retries = 0; 7746 ioa_cfg->ioa_is_dead = 1; 7747 7748 if (ioa_cfg->in_ioa_bringdown) { 7749 ioa_cfg->reset_cmd = NULL; 7750 ioa_cfg->in_reset_reload = 0; 7751 ipr_fail_all_ops(ioa_cfg); 7752 wake_up_all(&ioa_cfg->reset_wait_q); 7753 7754 spin_unlock_irq(ioa_cfg->host->host_lock); 7755 scsi_unblock_requests(ioa_cfg->host); 7756 spin_lock_irq(ioa_cfg->host->host_lock); 7757 return; 7758 } else { 7759 ioa_cfg->in_ioa_bringdown = 1; 7760 shutdown_type = IPR_SHUTDOWN_NONE; 7761 } 7762 } 7763 7764 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa, 7765 shutdown_type); 7766 } 7767 7768 /** 7769 * ipr_reset_freeze - Hold off all I/O activity 7770 * @ipr_cmd: ipr command struct 7771 * 7772 * Description: If the PCI slot is frozen, hold off all I/O 7773 * activity; then, as soon as the slot is available again, 7774 * initiate an adapter reset. 7775 */ 7776 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) 7777 { 7778 /* Disallow new interrupts, avoid loop */ 7779 ipr_cmd->ioa_cfg->allow_interrupts = 0; 7780 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 7781 ipr_cmd->done = ipr_reset_ioa_job; 7782 return IPR_RC_JOB_RETURN; 7783 } 7784 7785 /** 7786 * ipr_pci_frozen - Called when slot has experienced a PCI bus error. 7787 * @pdev: PCI device struct 7788 * 7789 * Description: This routine is called to tell us that the PCI bus 7790 * is down. Can't do anything here, except put the device driver 7791 * into a holding pattern, waiting for the PCI bus to come back. 7792 */ 7793 static void ipr_pci_frozen(struct pci_dev *pdev) 7794 { 7795 unsigned long flags = 0; 7796 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7797 7798 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 7799 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE); 7800 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 7801 } 7802 7803 /** 7804 * ipr_pci_slot_reset - Called when PCI slot has been reset. 7805 * @pdev: PCI device struct 7806 * 7807 * Description: This routine is called by the pci error recovery 7808 * code after the PCI slot has been reset, just before we 7809 * should resume normal operations. 7810 */ 7811 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) 7812 { 7813 unsigned long flags = 0; 7814 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7815 7816 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 7817 if (ioa_cfg->needs_warm_reset) 7818 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 7819 else 7820 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space, 7821 IPR_SHUTDOWN_NONE); 7822 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 7823 return PCI_ERS_RESULT_RECOVERED; 7824 } 7825 7826 /** 7827 * ipr_pci_perm_failure - Called when PCI slot is dead for good. 7828 * @pdev: PCI device struct 7829 * 7830 * Description: This routine is called when the PCI bus has 7831 * permanently failed. 7832 */ 7833 static void ipr_pci_perm_failure(struct pci_dev *pdev) 7834 { 7835 unsigned long flags = 0; 7836 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7837 7838 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 7839 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 7840 ioa_cfg->sdt_state = ABORT_DUMP; 7841 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES; 7842 ioa_cfg->in_ioa_bringdown = 1; 7843 ioa_cfg->allow_cmds = 0; 7844 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 7845 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 7846 } 7847 7848 /** 7849 * ipr_pci_error_detected - Called when a PCI error is detected. 7850 * @pdev: PCI device struct 7851 * @state: PCI channel state 7852 * 7853 * Description: Called when a PCI error is detected. 7854 * 7855 * Return value: 7856 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT 7857 */ 7858 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, 7859 pci_channel_state_t state) 7860 { 7861 switch (state) { 7862 case pci_channel_io_frozen: 7863 ipr_pci_frozen(pdev); 7864 return PCI_ERS_RESULT_NEED_RESET; 7865 case pci_channel_io_perm_failure: 7866 ipr_pci_perm_failure(pdev); 7867 return PCI_ERS_RESULT_DISCONNECT; 7868 break; 7869 default: 7870 break; 7871 } 7872 return PCI_ERS_RESULT_NEED_RESET; 7873 } 7874 7875 /** 7876 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) 7877 * @ioa_cfg: ioa cfg struct 7878 * 7879 * Description: This is the second phase of adapter intialization 7880 * This function takes care of initilizing the adapter to the point 7881 * where it can accept new commands. 7882 7883 * Return value: 7884 * 0 on success / -EIO on failure 7885 **/ 7886 static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) 7887 { 7888 int rc = 0; 7889 unsigned long host_lock_flags = 0; 7890 7891 ENTER; 7892 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7893 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg); 7894 if (ioa_cfg->needs_hard_reset) { 7895 ioa_cfg->needs_hard_reset = 0; 7896 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 7897 } else 7898 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, 7899 IPR_SHUTDOWN_NONE); 7900 7901 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7902 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7903 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7904 7905 if (ioa_cfg->ioa_is_dead) { 7906 rc = -EIO; 7907 } else if (ipr_invalid_adapter(ioa_cfg)) { 7908 if (!ipr_testmode) 7909 rc = -EIO; 7910 7911 dev_err(&ioa_cfg->pdev->dev, 7912 "Adapter not supported in this hardware configuration.\n"); 7913 } 7914 7915 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7916 7917 LEAVE; 7918 return rc; 7919 } 7920 7921 /** 7922 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter 7923 * @ioa_cfg: ioa config struct 7924 * 7925 * Return value: 7926 * none 7927 **/ 7928 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 7929 { 7930 int i; 7931 7932 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 7933 if (ioa_cfg->ipr_cmnd_list[i]) 7934 pci_pool_free(ioa_cfg->ipr_cmd_pool, 7935 ioa_cfg->ipr_cmnd_list[i], 7936 ioa_cfg->ipr_cmnd_list_dma[i]); 7937 7938 ioa_cfg->ipr_cmnd_list[i] = NULL; 7939 } 7940 7941 if (ioa_cfg->ipr_cmd_pool) 7942 pci_pool_destroy (ioa_cfg->ipr_cmd_pool); 7943 7944 ioa_cfg->ipr_cmd_pool = NULL; 7945 } 7946 7947 /** 7948 * ipr_free_mem - Frees memory allocated for an adapter 7949 * @ioa_cfg: ioa cfg struct 7950 * 7951 * Return value: 7952 * nothing 7953 **/ 7954 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) 7955 { 7956 int i; 7957 7958 kfree(ioa_cfg->res_entries); 7959 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs), 7960 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 7961 ipr_free_cmd_blks(ioa_cfg); 7962 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 7963 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 7964 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size, 7965 ioa_cfg->u.cfg_table, 7966 ioa_cfg->cfg_table_dma); 7967 7968 for (i = 0; i < IPR_NUM_HCAMS; i++) { 7969 pci_free_consistent(ioa_cfg->pdev, 7970 sizeof(struct ipr_hostrcb), 7971 ioa_cfg->hostrcb[i], 7972 ioa_cfg->hostrcb_dma[i]); 7973 } 7974 7975 ipr_free_dump(ioa_cfg); 7976 kfree(ioa_cfg->trace); 7977 } 7978 7979 /** 7980 * ipr_free_all_resources - Free all allocated resources for an adapter. 7981 * @ipr_cmd: ipr command struct 7982 * 7983 * This function frees all allocated resources for the 7984 * specified adapter. 7985 * 7986 * Return value: 7987 * none 7988 **/ 7989 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) 7990 { 7991 struct pci_dev *pdev = ioa_cfg->pdev; 7992 7993 ENTER; 7994 free_irq(pdev->irq, ioa_cfg); 7995 pci_disable_msi(pdev); 7996 iounmap(ioa_cfg->hdw_dma_regs); 7997 pci_release_regions(pdev); 7998 ipr_free_mem(ioa_cfg); 7999 scsi_host_put(ioa_cfg->host); 8000 pci_disable_device(pdev); 8001 LEAVE; 8002 } 8003 8004 /** 8005 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter 8006 * @ioa_cfg: ioa config struct 8007 * 8008 * Return value: 8009 * 0 on success / -ENOMEM on allocation failure 8010 **/ 8011 static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 8012 { 8013 struct ipr_cmnd *ipr_cmd; 8014 struct ipr_ioarcb *ioarcb; 8015 dma_addr_t dma_addr; 8016 int i; 8017 8018 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev, 8019 sizeof(struct ipr_cmnd), 16, 0); 8020 8021 if (!ioa_cfg->ipr_cmd_pool) 8022 return -ENOMEM; 8023 8024 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 8025 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr); 8026 8027 if (!ipr_cmd) { 8028 ipr_free_cmd_blks(ioa_cfg); 8029 return -ENOMEM; 8030 } 8031 8032 memset(ipr_cmd, 0, sizeof(*ipr_cmd)); 8033 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; 8034 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; 8035 8036 ioarcb = &ipr_cmd->ioarcb; 8037 ipr_cmd->dma_addr = dma_addr; 8038 if (ioa_cfg->sis64) 8039 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr); 8040 else 8041 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr); 8042 8043 ioarcb->host_response_handle = cpu_to_be32(i << 2); 8044 if (ioa_cfg->sis64) { 8045 ioarcb->u.sis64_addr_data.data_ioadl_addr = 8046 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 8047 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr = 8048 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, ioasa)); 8049 } else { 8050 ioarcb->write_ioadl_addr = 8051 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 8052 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 8053 ioarcb->ioasa_host_pci_addr = 8054 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa)); 8055 } 8056 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); 8057 ipr_cmd->cmd_index = i; 8058 ipr_cmd->ioa_cfg = ioa_cfg; 8059 ipr_cmd->sense_buffer_dma = dma_addr + 8060 offsetof(struct ipr_cmnd, sense_buffer); 8061 8062 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 8063 } 8064 8065 return 0; 8066 } 8067 8068 /** 8069 * ipr_alloc_mem - Allocate memory for an adapter 8070 * @ioa_cfg: ioa config struct 8071 * 8072 * Return value: 8073 * 0 on success / non-zero for error 8074 **/ 8075 static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) 8076 { 8077 struct pci_dev *pdev = ioa_cfg->pdev; 8078 int i, rc = -ENOMEM; 8079 8080 ENTER; 8081 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) * 8082 ioa_cfg->max_devs_supported, GFP_KERNEL); 8083 8084 if (!ioa_cfg->res_entries) 8085 goto out; 8086 8087 if (ioa_cfg->sis64) { 8088 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) * 8089 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); 8090 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) * 8091 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); 8092 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) * 8093 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); 8094 } 8095 8096 for (i = 0; i < ioa_cfg->max_devs_supported; i++) { 8097 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); 8098 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg; 8099 } 8100 8101 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev, 8102 sizeof(struct ipr_misc_cbs), 8103 &ioa_cfg->vpd_cbs_dma); 8104 8105 if (!ioa_cfg->vpd_cbs) 8106 goto out_free_res_entries; 8107 8108 if (ipr_alloc_cmd_blks(ioa_cfg)) 8109 goto out_free_vpd_cbs; 8110 8111 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev, 8112 sizeof(u32) * IPR_NUM_CMD_BLKS, 8113 &ioa_cfg->host_rrq_dma); 8114 8115 if (!ioa_cfg->host_rrq) 8116 goto out_ipr_free_cmd_blocks; 8117 8118 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev, 8119 ioa_cfg->cfg_table_size, 8120 &ioa_cfg->cfg_table_dma); 8121 8122 if (!ioa_cfg->u.cfg_table) 8123 goto out_free_host_rrq; 8124 8125 for (i = 0; i < IPR_NUM_HCAMS; i++) { 8126 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev, 8127 sizeof(struct ipr_hostrcb), 8128 &ioa_cfg->hostrcb_dma[i]); 8129 8130 if (!ioa_cfg->hostrcb[i]) 8131 goto out_free_hostrcb_dma; 8132 8133 ioa_cfg->hostrcb[i]->hostrcb_dma = 8134 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); 8135 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg; 8136 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q); 8137 } 8138 8139 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) * 8140 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL); 8141 8142 if (!ioa_cfg->trace) 8143 goto out_free_hostrcb_dma; 8144 8145 rc = 0; 8146 out: 8147 LEAVE; 8148 return rc; 8149 8150 out_free_hostrcb_dma: 8151 while (i-- > 0) { 8152 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb), 8153 ioa_cfg->hostrcb[i], 8154 ioa_cfg->hostrcb_dma[i]); 8155 } 8156 pci_free_consistent(pdev, ioa_cfg->cfg_table_size, 8157 ioa_cfg->u.cfg_table, 8158 ioa_cfg->cfg_table_dma); 8159 out_free_host_rrq: 8160 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 8161 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 8162 out_ipr_free_cmd_blocks: 8163 ipr_free_cmd_blks(ioa_cfg); 8164 out_free_vpd_cbs: 8165 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs), 8166 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 8167 out_free_res_entries: 8168 kfree(ioa_cfg->res_entries); 8169 goto out; 8170 } 8171 8172 /** 8173 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values 8174 * @ioa_cfg: ioa config struct 8175 * 8176 * Return value: 8177 * none 8178 **/ 8179 static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) 8180 { 8181 int i; 8182 8183 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 8184 ioa_cfg->bus_attr[i].bus = i; 8185 ioa_cfg->bus_attr[i].qas_enabled = 0; 8186 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; 8187 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) 8188 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; 8189 else 8190 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; 8191 } 8192 } 8193 8194 /** 8195 * ipr_init_ioa_cfg - Initialize IOA config struct 8196 * @ioa_cfg: ioa config struct 8197 * @host: scsi host struct 8198 * @pdev: PCI dev struct 8199 * 8200 * Return value: 8201 * none 8202 **/ 8203 static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, 8204 struct Scsi_Host *host, struct pci_dev *pdev) 8205 { 8206 const struct ipr_interrupt_offsets *p; 8207 struct ipr_interrupts *t; 8208 void __iomem *base; 8209 8210 ioa_cfg->host = host; 8211 ioa_cfg->pdev = pdev; 8212 ioa_cfg->log_level = ipr_log_level; 8213 ioa_cfg->doorbell = IPR_DOORBELL; 8214 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER); 8215 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL); 8216 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL); 8217 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL); 8218 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); 8219 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); 8220 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); 8221 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); 8222 8223 INIT_LIST_HEAD(&ioa_cfg->free_q); 8224 INIT_LIST_HEAD(&ioa_cfg->pending_q); 8225 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q); 8226 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q); 8227 INIT_LIST_HEAD(&ioa_cfg->free_res_q); 8228 INIT_LIST_HEAD(&ioa_cfg->used_res_q); 8229 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread); 8230 init_waitqueue_head(&ioa_cfg->reset_wait_q); 8231 init_waitqueue_head(&ioa_cfg->msi_wait_q); 8232 ioa_cfg->sdt_state = INACTIVE; 8233 8234 ipr_initialize_bus_attr(ioa_cfg); 8235 ioa_cfg->max_devs_supported = ipr_max_devs; 8236 8237 if (ioa_cfg->sis64) { 8238 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS; 8239 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET; 8240 if (ipr_max_devs > IPR_MAX_SIS64_DEVS) 8241 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS; 8242 } else { 8243 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; 8244 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; 8245 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS) 8246 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS; 8247 } 8248 host->max_channel = IPR_MAX_BUS_TO_SCAN; 8249 host->unique_id = host->host_no; 8250 host->max_cmd_len = IPR_MAX_CDB_LEN; 8251 pci_set_drvdata(pdev, ioa_cfg); 8252 8253 p = &ioa_cfg->chip_cfg->regs; 8254 t = &ioa_cfg->regs; 8255 base = ioa_cfg->hdw_dma_regs; 8256 8257 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; 8258 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; 8259 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32; 8260 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; 8261 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32; 8262 t->clr_interrupt_reg = base + p->clr_interrupt_reg; 8263 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32; 8264 t->sense_interrupt_reg = base + p->sense_interrupt_reg; 8265 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32; 8266 t->ioarrin_reg = base + p->ioarrin_reg; 8267 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; 8268 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32; 8269 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; 8270 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32; 8271 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; 8272 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32; 8273 8274 if (ioa_cfg->sis64) { 8275 t->init_feedback_reg = base + p->init_feedback_reg; 8276 t->dump_addr_reg = base + p->dump_addr_reg; 8277 t->dump_data_reg = base + p->dump_data_reg; 8278 } 8279 } 8280 8281 /** 8282 * ipr_get_chip_info - Find adapter chip information 8283 * @dev_id: PCI device id struct 8284 * 8285 * Return value: 8286 * ptr to chip information on success / NULL on failure 8287 **/ 8288 static const struct ipr_chip_t * __devinit 8289 ipr_get_chip_info(const struct pci_device_id *dev_id) 8290 { 8291 int i; 8292 8293 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) 8294 if (ipr_chip[i].vendor == dev_id->vendor && 8295 ipr_chip[i].device == dev_id->device) 8296 return &ipr_chip[i]; 8297 return NULL; 8298 } 8299 8300 /** 8301 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi(). 8302 * @pdev: PCI device struct 8303 * 8304 * Description: Simply set the msi_received flag to 1 indicating that 8305 * Message Signaled Interrupts are supported. 8306 * 8307 * Return value: 8308 * 0 on success / non-zero on failure 8309 **/ 8310 static irqreturn_t __devinit ipr_test_intr(int irq, void *devp) 8311 { 8312 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; 8313 unsigned long lock_flags = 0; 8314 irqreturn_t rc = IRQ_HANDLED; 8315 8316 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8317 8318 ioa_cfg->msi_received = 1; 8319 wake_up(&ioa_cfg->msi_wait_q); 8320 8321 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8322 return rc; 8323 } 8324 8325 /** 8326 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support. 8327 * @pdev: PCI device struct 8328 * 8329 * Description: The return value from pci_enable_msi() can not always be 8330 * trusted. This routine sets up and initiates a test interrupt to determine 8331 * if the interrupt is received via the ipr_test_intr() service routine. 8332 * If the tests fails, the driver will fall back to LSI. 8333 * 8334 * Return value: 8335 * 0 on success / non-zero on failure 8336 **/ 8337 static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, 8338 struct pci_dev *pdev) 8339 { 8340 int rc; 8341 volatile u32 int_reg; 8342 unsigned long lock_flags = 0; 8343 8344 ENTER; 8345 8346 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8347 init_waitqueue_head(&ioa_cfg->msi_wait_q); 8348 ioa_cfg->msi_received = 0; 8349 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8350 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32); 8351 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 8352 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8353 8354 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg); 8355 if (rc) { 8356 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq); 8357 return rc; 8358 } else if (ipr_debug) 8359 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq); 8360 8361 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32); 8362 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 8363 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ); 8364 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8365 8366 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8367 if (!ioa_cfg->msi_received) { 8368 /* MSI test failed */ 8369 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n"); 8370 rc = -EOPNOTSUPP; 8371 } else if (ipr_debug) 8372 dev_info(&pdev->dev, "MSI test succeeded.\n"); 8373 8374 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8375 8376 free_irq(pdev->irq, ioa_cfg); 8377 8378 LEAVE; 8379 8380 return rc; 8381 } 8382 8383 /** 8384 * ipr_probe_ioa - Allocates memory and does first stage of initialization 8385 * @pdev: PCI device struct 8386 * @dev_id: PCI device id struct 8387 * 8388 * Return value: 8389 * 0 on success / non-zero on failure 8390 **/ 8391 static int __devinit ipr_probe_ioa(struct pci_dev *pdev, 8392 const struct pci_device_id *dev_id) 8393 { 8394 struct ipr_ioa_cfg *ioa_cfg; 8395 struct Scsi_Host *host; 8396 unsigned long ipr_regs_pci; 8397 void __iomem *ipr_regs; 8398 int rc = PCIBIOS_SUCCESSFUL; 8399 volatile u32 mask, uproc, interrupts; 8400 8401 ENTER; 8402 8403 if ((rc = pci_enable_device(pdev))) { 8404 dev_err(&pdev->dev, "Cannot enable adapter\n"); 8405 goto out; 8406 } 8407 8408 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq); 8409 8410 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); 8411 8412 if (!host) { 8413 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n"); 8414 rc = -ENOMEM; 8415 goto out_disable; 8416 } 8417 8418 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; 8419 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); 8420 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, 8421 sata_port_info.flags, &ipr_sata_ops); 8422 8423 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id); 8424 8425 if (!ioa_cfg->ipr_chip) { 8426 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n", 8427 dev_id->vendor, dev_id->device); 8428 goto out_scsi_host_put; 8429 } 8430 8431 /* set SIS 32 or SIS 64 */ 8432 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0; 8433 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg; 8434 8435 if (ipr_transop_timeout) 8436 ioa_cfg->transop_timeout = ipr_transop_timeout; 8437 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT) 8438 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT; 8439 else 8440 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT; 8441 8442 ioa_cfg->revid = pdev->revision; 8443 8444 ipr_regs_pci = pci_resource_start(pdev, 0); 8445 8446 rc = pci_request_regions(pdev, IPR_NAME); 8447 if (rc < 0) { 8448 dev_err(&pdev->dev, 8449 "Couldn't register memory range of registers\n"); 8450 goto out_scsi_host_put; 8451 } 8452 8453 ipr_regs = pci_ioremap_bar(pdev, 0); 8454 8455 if (!ipr_regs) { 8456 dev_err(&pdev->dev, 8457 "Couldn't map memory range of registers\n"); 8458 rc = -ENOMEM; 8459 goto out_release_regions; 8460 } 8461 8462 ioa_cfg->hdw_dma_regs = ipr_regs; 8463 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; 8464 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; 8465 8466 ipr_init_ioa_cfg(ioa_cfg, host, pdev); 8467 8468 pci_set_master(pdev); 8469 8470 if (ioa_cfg->sis64) { 8471 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); 8472 if (rc < 0) { 8473 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n"); 8474 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 8475 } 8476 8477 } else 8478 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 8479 8480 if (rc < 0) { 8481 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n"); 8482 goto cleanup_nomem; 8483 } 8484 8485 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 8486 ioa_cfg->chip_cfg->cache_line_size); 8487 8488 if (rc != PCIBIOS_SUCCESSFUL) { 8489 dev_err(&pdev->dev, "Write of cache line size failed\n"); 8490 rc = -EIO; 8491 goto cleanup_nomem; 8492 } 8493 8494 /* Enable MSI style interrupts if they are supported. */ 8495 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) { 8496 rc = ipr_test_msi(ioa_cfg, pdev); 8497 if (rc == -EOPNOTSUPP) 8498 pci_disable_msi(pdev); 8499 else if (rc) 8500 goto out_msi_disable; 8501 else 8502 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq); 8503 } else if (ipr_debug) 8504 dev_info(&pdev->dev, "Cannot enable MSI.\n"); 8505 8506 /* Save away PCI config space for use following IOA reset */ 8507 rc = pci_save_state(pdev); 8508 8509 if (rc != PCIBIOS_SUCCESSFUL) { 8510 dev_err(&pdev->dev, "Failed to save PCI config space\n"); 8511 rc = -EIO; 8512 goto cleanup_nomem; 8513 } 8514 8515 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) 8516 goto cleanup_nomem; 8517 8518 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) 8519 goto cleanup_nomem; 8520 8521 if (ioa_cfg->sis64) 8522 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64) 8523 + ((sizeof(struct ipr_config_table_entry64) 8524 * ioa_cfg->max_devs_supported))); 8525 else 8526 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr) 8527 + ((sizeof(struct ipr_config_table_entry) 8528 * ioa_cfg->max_devs_supported))); 8529 8530 rc = ipr_alloc_mem(ioa_cfg); 8531 if (rc < 0) { 8532 dev_err(&pdev->dev, 8533 "Couldn't allocate enough memory for device driver!\n"); 8534 goto cleanup_nomem; 8535 } 8536 8537 /* 8538 * If HRRQ updated interrupt is not masked, or reset alert is set, 8539 * the card is in an unknown state and needs a hard reset 8540 */ 8541 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); 8542 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32); 8543 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32); 8544 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) 8545 ioa_cfg->needs_hard_reset = 1; 8546 if (interrupts & IPR_PCII_ERROR_INTERRUPTS) 8547 ioa_cfg->needs_hard_reset = 1; 8548 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED) 8549 ioa_cfg->ioa_unit_checked = 1; 8550 8551 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8552 rc = request_irq(pdev->irq, ipr_isr, 8553 ioa_cfg->msi_received ? 0 : IRQF_SHARED, 8554 IPR_NAME, ioa_cfg); 8555 8556 if (rc) { 8557 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n", 8558 pdev->irq, rc); 8559 goto cleanup_nolog; 8560 } 8561 8562 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) || 8563 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) { 8564 ioa_cfg->needs_warm_reset = 1; 8565 ioa_cfg->reset = ipr_reset_slot_reset; 8566 } else 8567 ioa_cfg->reset = ipr_reset_start_bist; 8568 8569 spin_lock(&ipr_driver_lock); 8570 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head); 8571 spin_unlock(&ipr_driver_lock); 8572 8573 LEAVE; 8574 out: 8575 return rc; 8576 8577 cleanup_nolog: 8578 ipr_free_mem(ioa_cfg); 8579 cleanup_nomem: 8580 iounmap(ipr_regs); 8581 out_msi_disable: 8582 pci_disable_msi(pdev); 8583 out_release_regions: 8584 pci_release_regions(pdev); 8585 out_scsi_host_put: 8586 scsi_host_put(host); 8587 out_disable: 8588 pci_disable_device(pdev); 8589 goto out; 8590 } 8591 8592 /** 8593 * ipr_scan_vsets - Scans for VSET devices 8594 * @ioa_cfg: ioa config struct 8595 * 8596 * Description: Since the VSET resources do not follow SAM in that we can have 8597 * sparse LUNs with no LUN 0, we have to scan for these ourselves. 8598 * 8599 * Return value: 8600 * none 8601 **/ 8602 static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg) 8603 { 8604 int target, lun; 8605 8606 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++) 8607 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ ) 8608 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun); 8609 } 8610 8611 /** 8612 * ipr_initiate_ioa_bringdown - Bring down an adapter 8613 * @ioa_cfg: ioa config struct 8614 * @shutdown_type: shutdown type 8615 * 8616 * Description: This function will initiate bringing down the adapter. 8617 * This consists of issuing an IOA shutdown to the adapter 8618 * to flush the cache, and running BIST. 8619 * If the caller needs to wait on the completion of the reset, 8620 * the caller must sleep on the reset_wait_q. 8621 * 8622 * Return value: 8623 * none 8624 **/ 8625 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, 8626 enum ipr_shutdown_type shutdown_type) 8627 { 8628 ENTER; 8629 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 8630 ioa_cfg->sdt_state = ABORT_DUMP; 8631 ioa_cfg->reset_retries = 0; 8632 ioa_cfg->in_ioa_bringdown = 1; 8633 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 8634 LEAVE; 8635 } 8636 8637 /** 8638 * __ipr_remove - Remove a single adapter 8639 * @pdev: pci device struct 8640 * 8641 * Adapter hot plug remove entry point. 8642 * 8643 * Return value: 8644 * none 8645 **/ 8646 static void __ipr_remove(struct pci_dev *pdev) 8647 { 8648 unsigned long host_lock_flags = 0; 8649 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8650 ENTER; 8651 8652 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8653 while(ioa_cfg->in_reset_reload) { 8654 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8655 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8656 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8657 } 8658 8659 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 8660 8661 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8662 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8663 flush_scheduled_work(); 8664 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8665 8666 spin_lock(&ipr_driver_lock); 8667 list_del(&ioa_cfg->queue); 8668 spin_unlock(&ipr_driver_lock); 8669 8670 if (ioa_cfg->sdt_state == ABORT_DUMP) 8671 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 8672 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8673 8674 ipr_free_all_resources(ioa_cfg); 8675 8676 LEAVE; 8677 } 8678 8679 /** 8680 * ipr_remove - IOA hot plug remove entry point 8681 * @pdev: pci device struct 8682 * 8683 * Adapter hot plug remove entry point. 8684 * 8685 * Return value: 8686 * none 8687 **/ 8688 static void __devexit ipr_remove(struct pci_dev *pdev) 8689 { 8690 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8691 8692 ENTER; 8693 8694 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 8695 &ipr_trace_attr); 8696 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj, 8697 &ipr_dump_attr); 8698 scsi_remove_host(ioa_cfg->host); 8699 8700 __ipr_remove(pdev); 8701 8702 LEAVE; 8703 } 8704 8705 /** 8706 * ipr_probe - Adapter hot plug add entry point 8707 * 8708 * Return value: 8709 * 0 on success / non-zero on failure 8710 **/ 8711 static int __devinit ipr_probe(struct pci_dev *pdev, 8712 const struct pci_device_id *dev_id) 8713 { 8714 struct ipr_ioa_cfg *ioa_cfg; 8715 int rc; 8716 8717 rc = ipr_probe_ioa(pdev, dev_id); 8718 8719 if (rc) 8720 return rc; 8721 8722 ioa_cfg = pci_get_drvdata(pdev); 8723 rc = ipr_probe_ioa_part2(ioa_cfg); 8724 8725 if (rc) { 8726 __ipr_remove(pdev); 8727 return rc; 8728 } 8729 8730 rc = scsi_add_host(ioa_cfg->host, &pdev->dev); 8731 8732 if (rc) { 8733 __ipr_remove(pdev); 8734 return rc; 8735 } 8736 8737 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj, 8738 &ipr_trace_attr); 8739 8740 if (rc) { 8741 scsi_remove_host(ioa_cfg->host); 8742 __ipr_remove(pdev); 8743 return rc; 8744 } 8745 8746 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj, 8747 &ipr_dump_attr); 8748 8749 if (rc) { 8750 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 8751 &ipr_trace_attr); 8752 scsi_remove_host(ioa_cfg->host); 8753 __ipr_remove(pdev); 8754 return rc; 8755 } 8756 8757 scsi_scan_host(ioa_cfg->host); 8758 ipr_scan_vsets(ioa_cfg); 8759 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN); 8760 ioa_cfg->allow_ml_add_del = 1; 8761 ioa_cfg->host->max_channel = IPR_VSET_BUS; 8762 schedule_work(&ioa_cfg->work_q); 8763 return 0; 8764 } 8765 8766 /** 8767 * ipr_shutdown - Shutdown handler. 8768 * @pdev: pci device struct 8769 * 8770 * This function is invoked upon system shutdown/reboot. It will issue 8771 * an adapter shutdown to the adapter to flush the write cache. 8772 * 8773 * Return value: 8774 * none 8775 **/ 8776 static void ipr_shutdown(struct pci_dev *pdev) 8777 { 8778 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8779 unsigned long lock_flags = 0; 8780 8781 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8782 while(ioa_cfg->in_reset_reload) { 8783 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8784 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8785 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8786 } 8787 8788 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 8789 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8790 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8791 } 8792 8793 static struct pci_device_id ipr_pci_table[] __devinitdata = { 8794 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 8795 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 }, 8796 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 8797 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 }, 8798 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 8799 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 }, 8800 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 8801 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 }, 8802 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 8803 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 }, 8804 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 8805 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 }, 8806 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 8807 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 }, 8808 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 8809 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0, 8810 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8811 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 8812 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 8813 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 8814 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 8815 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8816 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 8817 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 8818 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8819 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 8820 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 8821 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 8822 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 8823 IPR_USE_LONG_TRANSOP_TIMEOUT}, 8824 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 8825 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 8826 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8827 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 8828 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0, 8829 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8830 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 8831 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 }, 8832 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 8833 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0, 8834 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET }, 8835 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, 8836 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 }, 8837 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 8838 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 }, 8839 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 8840 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0, 8841 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8842 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 8843 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0, 8844 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8845 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 8846 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 }, 8847 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 8848 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 }, 8849 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 8850 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 }, 8851 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 8852 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 }, 8853 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 8854 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 }, 8855 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 8856 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 }, 8857 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 8858 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, 0 }, 8859 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 8860 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 }, 8861 { } 8862 }; 8863 MODULE_DEVICE_TABLE(pci, ipr_pci_table); 8864 8865 static struct pci_error_handlers ipr_err_handler = { 8866 .error_detected = ipr_pci_error_detected, 8867 .slot_reset = ipr_pci_slot_reset, 8868 }; 8869 8870 static struct pci_driver ipr_driver = { 8871 .name = IPR_NAME, 8872 .id_table = ipr_pci_table, 8873 .probe = ipr_probe, 8874 .remove = __devexit_p(ipr_remove), 8875 .shutdown = ipr_shutdown, 8876 .err_handler = &ipr_err_handler, 8877 }; 8878 8879 /** 8880 * ipr_halt_done - Shutdown prepare completion 8881 * 8882 * Return value: 8883 * none 8884 **/ 8885 static void ipr_halt_done(struct ipr_cmnd *ipr_cmd) 8886 { 8887 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8888 8889 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 8890 } 8891 8892 /** 8893 * ipr_halt - Issue shutdown prepare to all adapters 8894 * 8895 * Return value: 8896 * NOTIFY_OK on success / NOTIFY_DONE on failure 8897 **/ 8898 static int ipr_halt(struct notifier_block *nb, ulong event, void *buf) 8899 { 8900 struct ipr_cmnd *ipr_cmd; 8901 struct ipr_ioa_cfg *ioa_cfg; 8902 unsigned long flags = 0; 8903 8904 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF) 8905 return NOTIFY_DONE; 8906 8907 spin_lock(&ipr_driver_lock); 8908 8909 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) { 8910 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 8911 if (!ioa_cfg->allow_cmds) { 8912 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 8913 continue; 8914 } 8915 8916 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 8917 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 8918 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 8919 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 8920 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; 8921 8922 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 8923 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 8924 } 8925 spin_unlock(&ipr_driver_lock); 8926 8927 return NOTIFY_OK; 8928 } 8929 8930 static struct notifier_block ipr_notifier = { 8931 ipr_halt, NULL, 0 8932 }; 8933 8934 /** 8935 * ipr_init - Module entry point 8936 * 8937 * Return value: 8938 * 0 on success / negative value on failure 8939 **/ 8940 static int __init ipr_init(void) 8941 { 8942 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", 8943 IPR_DRIVER_VERSION, IPR_DRIVER_DATE); 8944 8945 register_reboot_notifier(&ipr_notifier); 8946 return pci_register_driver(&ipr_driver); 8947 } 8948 8949 /** 8950 * ipr_exit - Module unload 8951 * 8952 * Module unload entry point. 8953 * 8954 * Return value: 8955 * none 8956 **/ 8957 static void __exit ipr_exit(void) 8958 { 8959 unregister_reboot_notifier(&ipr_notifier); 8960 pci_unregister_driver(&ipr_driver); 8961 } 8962 8963 module_init(ipr_init); 8964 module_exit(ipr_exit); 8965