1 /* 2 * Scsi Host Layer for MPT (Message Passing Technology) based controllers 3 * 4 * This code is based on drivers/scsi/mpt3sas/mpt3sas_scsih.c 5 * Copyright (C) 2012-2014 LSI Corporation 6 * Copyright (C) 2013-2014 Avago Technologies 7 * (mailto: MPT-FusionLinux.pdl@avagotech.com) 8 * 9 * This program is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Public License 11 * as published by the Free Software Foundation; either version 2 12 * of the License, or (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * NO WARRANTY 20 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR 21 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT 22 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, 23 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is 24 * solely responsible for determining the appropriateness of using and 25 * distributing the Program and assumes all risks associated with its 26 * exercise of rights under this Agreement, including but not limited to 27 * the risks and costs of program errors, damage to or loss of data, 28 * programs or equipment, and unavailability or interruption of operations. 29 30 * DISCLAIMER OF LIABILITY 31 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY 32 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND 34 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 35 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 36 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED 37 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES 38 39 * You should have received a copy of the GNU General Public License 40 * along with this program; if not, write to the Free Software 41 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 42 * USA. 43 */ 44 45 #include <linux/module.h> 46 #include <linux/kernel.h> 47 #include <linux/init.h> 48 #include <linux/errno.h> 49 #include <linux/blkdev.h> 50 #include <linux/sched.h> 51 #include <linux/workqueue.h> 52 #include <linux/delay.h> 53 #include <linux/pci.h> 54 #include <linux/interrupt.h> 55 #include <linux/aer.h> 56 #include <linux/raid_class.h> 57 58 #include "mpt3sas_base.h" 59 60 MODULE_AUTHOR(MPT3SAS_AUTHOR); 61 MODULE_DESCRIPTION(MPT3SAS_DESCRIPTION); 62 MODULE_LICENSE("GPL"); 63 MODULE_VERSION(MPT3SAS_DRIVER_VERSION); 64 65 #define RAID_CHANNEL 1 66 /* forward proto's */ 67 static void _scsih_expander_node_remove(struct MPT3SAS_ADAPTER *ioc, 68 struct _sas_node *sas_expander); 69 static void _firmware_event_work(struct work_struct *work); 70 71 static void _scsih_remove_device(struct MPT3SAS_ADAPTER *ioc, 72 struct _sas_device *sas_device); 73 static int _scsih_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle, 74 u8 retry_count, u8 is_pd); 75 76 static u8 _scsih_check_for_pending_tm(struct MPT3SAS_ADAPTER *ioc, u16 smid); 77 78 static void _scsih_scan_start(struct Scsi_Host *shost); 79 static int _scsih_scan_finished(struct Scsi_Host *shost, unsigned long time); 80 81 /* global parameters */ 82 LIST_HEAD(mpt3sas_ioc_list); 83 84 /* local parameters */ 85 static u8 scsi_io_cb_idx = -1; 86 static u8 tm_cb_idx = -1; 87 static u8 ctl_cb_idx = -1; 88 static u8 base_cb_idx = -1; 89 static u8 port_enable_cb_idx = -1; 90 static u8 transport_cb_idx = -1; 91 static u8 scsih_cb_idx = -1; 92 static u8 config_cb_idx = -1; 93 static int mpt_ids; 94 95 static u8 tm_tr_cb_idx = -1 ; 96 static u8 tm_tr_volume_cb_idx = -1 ; 97 static u8 tm_sas_control_cb_idx = -1; 98 99 /* command line options */ 100 static u32 logging_level; 101 MODULE_PARM_DESC(logging_level, 102 " bits for enabling additional logging info (default=0)"); 103 104 105 static ushort max_sectors = 0xFFFF; 106 module_param(max_sectors, ushort, 0); 107 MODULE_PARM_DESC(max_sectors, "max sectors, range 64 to 32767 default=32767"); 108 109 110 static int missing_delay[2] = {-1, -1}; 111 module_param_array(missing_delay, int, NULL, 0); 112 MODULE_PARM_DESC(missing_delay, " device missing delay , io missing delay"); 113 114 /* scsi-mid layer global parmeter is max_report_luns, which is 511 */ 115 #define MPT3SAS_MAX_LUN (16895) 116 static u64 max_lun = MPT3SAS_MAX_LUN; 117 module_param(max_lun, ullong, 0); 118 MODULE_PARM_DESC(max_lun, " max lun, default=16895 "); 119 120 121 122 123 /* diag_buffer_enable is bitwise 124 * bit 0 set = TRACE 125 * bit 1 set = SNAPSHOT 126 * bit 2 set = EXTENDED 127 * 128 * Either bit can be set, or both 129 */ 130 static int diag_buffer_enable = -1; 131 module_param(diag_buffer_enable, int, 0); 132 MODULE_PARM_DESC(diag_buffer_enable, 133 " post diag buffers (TRACE=1/SNAPSHOT=2/EXTENDED=4/default=0)"); 134 static int disable_discovery = -1; 135 module_param(disable_discovery, int, 0); 136 MODULE_PARM_DESC(disable_discovery, " disable discovery "); 137 138 139 /* permit overriding the host protection capabilities mask (EEDP/T10 PI) */ 140 static int prot_mask = -1; 141 module_param(prot_mask, int, 0); 142 MODULE_PARM_DESC(prot_mask, " host protection capabilities mask, def=7 "); 143 144 145 /* raid transport support */ 146 147 static struct raid_template *mpt3sas_raid_template; 148 149 150 /** 151 * struct sense_info - common structure for obtaining sense keys 152 * @skey: sense key 153 * @asc: additional sense code 154 * @ascq: additional sense code qualifier 155 */ 156 struct sense_info { 157 u8 skey; 158 u8 asc; 159 u8 ascq; 160 }; 161 162 #define MPT3SAS_PROCESS_TRIGGER_DIAG (0xFFFB) 163 #define MPT3SAS_TURN_ON_PFA_LED (0xFFFC) 164 #define MPT3SAS_PORT_ENABLE_COMPLETE (0xFFFD) 165 #define MPT3SAS_ABRT_TASK_SET (0xFFFE) 166 #define MPT3SAS_REMOVE_UNRESPONDING_DEVICES (0xFFFF) 167 /** 168 * struct fw_event_work - firmware event struct 169 * @list: link list framework 170 * @work: work object (ioc->fault_reset_work_q) 171 * @cancel_pending_work: flag set during reset handling 172 * @ioc: per adapter object 173 * @device_handle: device handle 174 * @VF_ID: virtual function id 175 * @VP_ID: virtual port id 176 * @ignore: flag meaning this event has been marked to ignore 177 * @event: firmware event MPI2_EVENT_XXX defined in mpt2_ioc.h 178 * @event_data: reply event data payload follows 179 * 180 * This object stored on ioc->fw_event_list. 181 */ 182 struct fw_event_work { 183 struct list_head list; 184 struct work_struct work; 185 u8 cancel_pending_work; 186 struct delayed_work delayed_work; 187 188 struct MPT3SAS_ADAPTER *ioc; 189 u16 device_handle; 190 u8 VF_ID; 191 u8 VP_ID; 192 u8 ignore; 193 u16 event; 194 char event_data[0] __aligned(4); 195 }; 196 197 /* raid transport support */ 198 static struct raid_template *mpt3sas_raid_template; 199 200 /** 201 * struct _scsi_io_transfer - scsi io transfer 202 * @handle: sas device handle (assigned by firmware) 203 * @is_raid: flag set for hidden raid components 204 * @dir: DMA_TO_DEVICE, DMA_FROM_DEVICE, 205 * @data_length: data transfer length 206 * @data_dma: dma pointer to data 207 * @sense: sense data 208 * @lun: lun number 209 * @cdb_length: cdb length 210 * @cdb: cdb contents 211 * @timeout: timeout for this command 212 * @VF_ID: virtual function id 213 * @VP_ID: virtual port id 214 * @valid_reply: flag set for reply message 215 * @sense_length: sense length 216 * @ioc_status: ioc status 217 * @scsi_state: scsi state 218 * @scsi_status: scsi staus 219 * @log_info: log information 220 * @transfer_length: data length transfer when there is a reply message 221 * 222 * Used for sending internal scsi commands to devices within this module. 223 * Refer to _scsi_send_scsi_io(). 224 */ 225 struct _scsi_io_transfer { 226 u16 handle; 227 u8 is_raid; 228 enum dma_data_direction dir; 229 u32 data_length; 230 dma_addr_t data_dma; 231 u8 sense[SCSI_SENSE_BUFFERSIZE]; 232 u32 lun; 233 u8 cdb_length; 234 u8 cdb[32]; 235 u8 timeout; 236 u8 VF_ID; 237 u8 VP_ID; 238 u8 valid_reply; 239 /* the following bits are only valid when 'valid_reply = 1' */ 240 u32 sense_length; 241 u16 ioc_status; 242 u8 scsi_state; 243 u8 scsi_status; 244 u32 log_info; 245 u32 transfer_length; 246 }; 247 248 /* 249 * The pci device ids are defined in mpi/mpi2_cnfg.h. 250 */ 251 static const struct pci_device_id scsih_pci_table[] = { 252 /* Fury ~ 3004 and 3008 */ 253 { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3004, 254 PCI_ANY_ID, PCI_ANY_ID }, 255 { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3008, 256 PCI_ANY_ID, PCI_ANY_ID }, 257 /* Invader ~ 3108 */ 258 { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_1, 259 PCI_ANY_ID, PCI_ANY_ID }, 260 { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_2, 261 PCI_ANY_ID, PCI_ANY_ID }, 262 { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_5, 263 PCI_ANY_ID, PCI_ANY_ID }, 264 { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_6, 265 PCI_ANY_ID, PCI_ANY_ID }, 266 {0} /* Terminating entry */ 267 }; 268 MODULE_DEVICE_TABLE(pci, scsih_pci_table); 269 270 /** 271 * _scsih_set_debug_level - global setting of ioc->logging_level. 272 * 273 * Note: The logging levels are defined in mpt3sas_debug.h. 274 */ 275 static int 276 _scsih_set_debug_level(const char *val, struct kernel_param *kp) 277 { 278 int ret = param_set_int(val, kp); 279 struct MPT3SAS_ADAPTER *ioc; 280 281 if (ret) 282 return ret; 283 284 pr_info("setting logging_level(0x%08x)\n", logging_level); 285 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) 286 ioc->logging_level = logging_level; 287 return 0; 288 } 289 module_param_call(logging_level, _scsih_set_debug_level, param_get_int, 290 &logging_level, 0644); 291 292 /** 293 * _scsih_srch_boot_sas_address - search based on sas_address 294 * @sas_address: sas address 295 * @boot_device: boot device object from bios page 2 296 * 297 * Returns 1 when there's a match, 0 means no match. 298 */ 299 static inline int 300 _scsih_srch_boot_sas_address(u64 sas_address, 301 Mpi2BootDeviceSasWwid_t *boot_device) 302 { 303 return (sas_address == le64_to_cpu(boot_device->SASAddress)) ? 1 : 0; 304 } 305 306 /** 307 * _scsih_srch_boot_device_name - search based on device name 308 * @device_name: device name specified in INDENTIFY fram 309 * @boot_device: boot device object from bios page 2 310 * 311 * Returns 1 when there's a match, 0 means no match. 312 */ 313 static inline int 314 _scsih_srch_boot_device_name(u64 device_name, 315 Mpi2BootDeviceDeviceName_t *boot_device) 316 { 317 return (device_name == le64_to_cpu(boot_device->DeviceName)) ? 1 : 0; 318 } 319 320 /** 321 * _scsih_srch_boot_encl_slot - search based on enclosure_logical_id/slot 322 * @enclosure_logical_id: enclosure logical id 323 * @slot_number: slot number 324 * @boot_device: boot device object from bios page 2 325 * 326 * Returns 1 when there's a match, 0 means no match. 327 */ 328 static inline int 329 _scsih_srch_boot_encl_slot(u64 enclosure_logical_id, u16 slot_number, 330 Mpi2BootDeviceEnclosureSlot_t *boot_device) 331 { 332 return (enclosure_logical_id == le64_to_cpu(boot_device-> 333 EnclosureLogicalID) && slot_number == le16_to_cpu(boot_device-> 334 SlotNumber)) ? 1 : 0; 335 } 336 337 /** 338 * _scsih_is_boot_device - search for matching boot device. 339 * @sas_address: sas address 340 * @device_name: device name specified in INDENTIFY fram 341 * @enclosure_logical_id: enclosure logical id 342 * @slot_number: slot number 343 * @form: specifies boot device form 344 * @boot_device: boot device object from bios page 2 345 * 346 * Returns 1 when there's a match, 0 means no match. 347 */ 348 static int 349 _scsih_is_boot_device(u64 sas_address, u64 device_name, 350 u64 enclosure_logical_id, u16 slot, u8 form, 351 Mpi2BiosPage2BootDevice_t *boot_device) 352 { 353 int rc = 0; 354 355 switch (form) { 356 case MPI2_BIOSPAGE2_FORM_SAS_WWID: 357 if (!sas_address) 358 break; 359 rc = _scsih_srch_boot_sas_address( 360 sas_address, &boot_device->SasWwid); 361 break; 362 case MPI2_BIOSPAGE2_FORM_ENCLOSURE_SLOT: 363 if (!enclosure_logical_id) 364 break; 365 rc = _scsih_srch_boot_encl_slot( 366 enclosure_logical_id, 367 slot, &boot_device->EnclosureSlot); 368 break; 369 case MPI2_BIOSPAGE2_FORM_DEVICE_NAME: 370 if (!device_name) 371 break; 372 rc = _scsih_srch_boot_device_name( 373 device_name, &boot_device->DeviceName); 374 break; 375 case MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED: 376 break; 377 } 378 379 return rc; 380 } 381 382 /** 383 * _scsih_get_sas_address - set the sas_address for given device handle 384 * @handle: device handle 385 * @sas_address: sas address 386 * 387 * Returns 0 success, non-zero when failure 388 */ 389 static int 390 _scsih_get_sas_address(struct MPT3SAS_ADAPTER *ioc, u16 handle, 391 u64 *sas_address) 392 { 393 Mpi2SasDevicePage0_t sas_device_pg0; 394 Mpi2ConfigReply_t mpi_reply; 395 u32 ioc_status; 396 397 *sas_address = 0; 398 399 if (handle <= ioc->sas_hba.num_phys) { 400 *sas_address = ioc->sas_hba.sas_address; 401 return 0; 402 } 403 404 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0, 405 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) { 406 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", ioc->name, 407 __FILE__, __LINE__, __func__); 408 return -ENXIO; 409 } 410 411 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK; 412 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) { 413 *sas_address = le64_to_cpu(sas_device_pg0.SASAddress); 414 return 0; 415 } 416 417 /* we hit this becuase the given parent handle doesn't exist */ 418 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE) 419 return -ENXIO; 420 421 /* else error case */ 422 pr_err(MPT3SAS_FMT 423 "handle(0x%04x), ioc_status(0x%04x), failure at %s:%d/%s()!\n", 424 ioc->name, handle, ioc_status, 425 __FILE__, __LINE__, __func__); 426 return -EIO; 427 } 428 429 /** 430 * _scsih_determine_boot_device - determine boot device. 431 * @ioc: per adapter object 432 * @device: either sas_device or raid_device object 433 * @is_raid: [flag] 1 = raid object, 0 = sas object 434 * 435 * Determines whether this device should be first reported device to 436 * to scsi-ml or sas transport, this purpose is for persistent boot device. 437 * There are primary, alternate, and current entries in bios page 2. The order 438 * priority is primary, alternate, then current. This routine saves 439 * the corresponding device object and is_raid flag in the ioc object. 440 * The saved data to be used later in _scsih_probe_boot_devices(). 441 */ 442 static void 443 _scsih_determine_boot_device(struct MPT3SAS_ADAPTER *ioc, 444 void *device, u8 is_raid) 445 { 446 struct _sas_device *sas_device; 447 struct _raid_device *raid_device; 448 u64 sas_address; 449 u64 device_name; 450 u64 enclosure_logical_id; 451 u16 slot; 452 453 /* only process this function when driver loads */ 454 if (!ioc->is_driver_loading) 455 return; 456 457 /* no Bios, return immediately */ 458 if (!ioc->bios_pg3.BiosVersion) 459 return; 460 461 if (!is_raid) { 462 sas_device = device; 463 sas_address = sas_device->sas_address; 464 device_name = sas_device->device_name; 465 enclosure_logical_id = sas_device->enclosure_logical_id; 466 slot = sas_device->slot; 467 } else { 468 raid_device = device; 469 sas_address = raid_device->wwid; 470 device_name = 0; 471 enclosure_logical_id = 0; 472 slot = 0; 473 } 474 475 if (!ioc->req_boot_device.device) { 476 if (_scsih_is_boot_device(sas_address, device_name, 477 enclosure_logical_id, slot, 478 (ioc->bios_pg2.ReqBootDeviceForm & 479 MPI2_BIOSPAGE2_FORM_MASK), 480 &ioc->bios_pg2.RequestedBootDevice)) { 481 dinitprintk(ioc, pr_info(MPT3SAS_FMT 482 "%s: req_boot_device(0x%016llx)\n", 483 ioc->name, __func__, 484 (unsigned long long)sas_address)); 485 ioc->req_boot_device.device = device; 486 ioc->req_boot_device.is_raid = is_raid; 487 } 488 } 489 490 if (!ioc->req_alt_boot_device.device) { 491 if (_scsih_is_boot_device(sas_address, device_name, 492 enclosure_logical_id, slot, 493 (ioc->bios_pg2.ReqAltBootDeviceForm & 494 MPI2_BIOSPAGE2_FORM_MASK), 495 &ioc->bios_pg2.RequestedAltBootDevice)) { 496 dinitprintk(ioc, pr_info(MPT3SAS_FMT 497 "%s: req_alt_boot_device(0x%016llx)\n", 498 ioc->name, __func__, 499 (unsigned long long)sas_address)); 500 ioc->req_alt_boot_device.device = device; 501 ioc->req_alt_boot_device.is_raid = is_raid; 502 } 503 } 504 505 if (!ioc->current_boot_device.device) { 506 if (_scsih_is_boot_device(sas_address, device_name, 507 enclosure_logical_id, slot, 508 (ioc->bios_pg2.CurrentBootDeviceForm & 509 MPI2_BIOSPAGE2_FORM_MASK), 510 &ioc->bios_pg2.CurrentBootDevice)) { 511 dinitprintk(ioc, pr_info(MPT3SAS_FMT 512 "%s: current_boot_device(0x%016llx)\n", 513 ioc->name, __func__, 514 (unsigned long long)sas_address)); 515 ioc->current_boot_device.device = device; 516 ioc->current_boot_device.is_raid = is_raid; 517 } 518 } 519 } 520 521 /** 522 * mpt3sas_scsih_sas_device_find_by_sas_address - sas device search 523 * @ioc: per adapter object 524 * @sas_address: sas address 525 * Context: Calling function should acquire ioc->sas_device_lock 526 * 527 * This searches for sas_device based on sas_address, then return sas_device 528 * object. 529 */ 530 struct _sas_device * 531 mpt3sas_scsih_sas_device_find_by_sas_address(struct MPT3SAS_ADAPTER *ioc, 532 u64 sas_address) 533 { 534 struct _sas_device *sas_device; 535 536 list_for_each_entry(sas_device, &ioc->sas_device_list, list) 537 if (sas_device->sas_address == sas_address) 538 return sas_device; 539 540 list_for_each_entry(sas_device, &ioc->sas_device_init_list, list) 541 if (sas_device->sas_address == sas_address) 542 return sas_device; 543 544 return NULL; 545 } 546 547 /** 548 * _scsih_sas_device_find_by_handle - sas device search 549 * @ioc: per adapter object 550 * @handle: sas device handle (assigned by firmware) 551 * Context: Calling function should acquire ioc->sas_device_lock 552 * 553 * This searches for sas_device based on sas_address, then return sas_device 554 * object. 555 */ 556 static struct _sas_device * 557 _scsih_sas_device_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle) 558 { 559 struct _sas_device *sas_device; 560 561 list_for_each_entry(sas_device, &ioc->sas_device_list, list) 562 if (sas_device->handle == handle) 563 return sas_device; 564 565 list_for_each_entry(sas_device, &ioc->sas_device_init_list, list) 566 if (sas_device->handle == handle) 567 return sas_device; 568 569 return NULL; 570 } 571 572 /** 573 * _scsih_sas_device_remove - remove sas_device from list. 574 * @ioc: per adapter object 575 * @sas_device: the sas_device object 576 * Context: This function will acquire ioc->sas_device_lock. 577 * 578 * Removing object and freeing associated memory from the ioc->sas_device_list. 579 */ 580 static void 581 _scsih_sas_device_remove(struct MPT3SAS_ADAPTER *ioc, 582 struct _sas_device *sas_device) 583 { 584 unsigned long flags; 585 586 if (!sas_device) 587 return; 588 589 spin_lock_irqsave(&ioc->sas_device_lock, flags); 590 list_del(&sas_device->list); 591 kfree(sas_device); 592 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 593 } 594 595 /** 596 * _scsih_device_remove_by_handle - removing device object by handle 597 * @ioc: per adapter object 598 * @handle: device handle 599 * 600 * Return nothing. 601 */ 602 static void 603 _scsih_device_remove_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle) 604 { 605 struct _sas_device *sas_device; 606 unsigned long flags; 607 608 if (ioc->shost_recovery) 609 return; 610 611 spin_lock_irqsave(&ioc->sas_device_lock, flags); 612 sas_device = _scsih_sas_device_find_by_handle(ioc, handle); 613 if (sas_device) 614 list_del(&sas_device->list); 615 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 616 if (sas_device) 617 _scsih_remove_device(ioc, sas_device); 618 } 619 620 /** 621 * mpt3sas_device_remove_by_sas_address - removing device object by sas address 622 * @ioc: per adapter object 623 * @sas_address: device sas_address 624 * 625 * Return nothing. 626 */ 627 void 628 mpt3sas_device_remove_by_sas_address(struct MPT3SAS_ADAPTER *ioc, 629 u64 sas_address) 630 { 631 struct _sas_device *sas_device; 632 unsigned long flags; 633 634 if (ioc->shost_recovery) 635 return; 636 637 spin_lock_irqsave(&ioc->sas_device_lock, flags); 638 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, 639 sas_address); 640 if (sas_device) 641 list_del(&sas_device->list); 642 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 643 if (sas_device) 644 _scsih_remove_device(ioc, sas_device); 645 } 646 647 /** 648 * _scsih_sas_device_add - insert sas_device to the list. 649 * @ioc: per adapter object 650 * @sas_device: the sas_device object 651 * Context: This function will acquire ioc->sas_device_lock. 652 * 653 * Adding new object to the ioc->sas_device_list. 654 */ 655 static void 656 _scsih_sas_device_add(struct MPT3SAS_ADAPTER *ioc, 657 struct _sas_device *sas_device) 658 { 659 unsigned long flags; 660 661 dewtprintk(ioc, pr_info(MPT3SAS_FMT 662 "%s: handle(0x%04x), sas_addr(0x%016llx)\n", 663 ioc->name, __func__, sas_device->handle, 664 (unsigned long long)sas_device->sas_address)); 665 666 spin_lock_irqsave(&ioc->sas_device_lock, flags); 667 list_add_tail(&sas_device->list, &ioc->sas_device_list); 668 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 669 670 if (!mpt3sas_transport_port_add(ioc, sas_device->handle, 671 sas_device->sas_address_parent)) { 672 _scsih_sas_device_remove(ioc, sas_device); 673 } else if (!sas_device->starget) { 674 /* 675 * When asyn scanning is enabled, its not possible to remove 676 * devices while scanning is turned on due to an oops in 677 * scsi_sysfs_add_sdev()->add_device()->sysfs_addrm_start() 678 */ 679 if (!ioc->is_driver_loading) { 680 mpt3sas_transport_port_remove(ioc, 681 sas_device->sas_address, 682 sas_device->sas_address_parent); 683 _scsih_sas_device_remove(ioc, sas_device); 684 } 685 } 686 } 687 688 /** 689 * _scsih_sas_device_init_add - insert sas_device to the list. 690 * @ioc: per adapter object 691 * @sas_device: the sas_device object 692 * Context: This function will acquire ioc->sas_device_lock. 693 * 694 * Adding new object at driver load time to the ioc->sas_device_init_list. 695 */ 696 static void 697 _scsih_sas_device_init_add(struct MPT3SAS_ADAPTER *ioc, 698 struct _sas_device *sas_device) 699 { 700 unsigned long flags; 701 702 dewtprintk(ioc, pr_info(MPT3SAS_FMT 703 "%s: handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, 704 __func__, sas_device->handle, 705 (unsigned long long)sas_device->sas_address)); 706 707 spin_lock_irqsave(&ioc->sas_device_lock, flags); 708 list_add_tail(&sas_device->list, &ioc->sas_device_init_list); 709 _scsih_determine_boot_device(ioc, sas_device, 0); 710 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 711 } 712 713 /** 714 * _scsih_raid_device_find_by_id - raid device search 715 * @ioc: per adapter object 716 * @id: sas device target id 717 * @channel: sas device channel 718 * Context: Calling function should acquire ioc->raid_device_lock 719 * 720 * This searches for raid_device based on target id, then return raid_device 721 * object. 722 */ 723 static struct _raid_device * 724 _scsih_raid_device_find_by_id(struct MPT3SAS_ADAPTER *ioc, int id, int channel) 725 { 726 struct _raid_device *raid_device, *r; 727 728 r = NULL; 729 list_for_each_entry(raid_device, &ioc->raid_device_list, list) { 730 if (raid_device->id == id && raid_device->channel == channel) { 731 r = raid_device; 732 goto out; 733 } 734 } 735 736 out: 737 return r; 738 } 739 740 /** 741 * _scsih_raid_device_find_by_handle - raid device search 742 * @ioc: per adapter object 743 * @handle: sas device handle (assigned by firmware) 744 * Context: Calling function should acquire ioc->raid_device_lock 745 * 746 * This searches for raid_device based on handle, then return raid_device 747 * object. 748 */ 749 static struct _raid_device * 750 _scsih_raid_device_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle) 751 { 752 struct _raid_device *raid_device, *r; 753 754 r = NULL; 755 list_for_each_entry(raid_device, &ioc->raid_device_list, list) { 756 if (raid_device->handle != handle) 757 continue; 758 r = raid_device; 759 goto out; 760 } 761 762 out: 763 return r; 764 } 765 766 /** 767 * _scsih_raid_device_find_by_wwid - raid device search 768 * @ioc: per adapter object 769 * @handle: sas device handle (assigned by firmware) 770 * Context: Calling function should acquire ioc->raid_device_lock 771 * 772 * This searches for raid_device based on wwid, then return raid_device 773 * object. 774 */ 775 static struct _raid_device * 776 _scsih_raid_device_find_by_wwid(struct MPT3SAS_ADAPTER *ioc, u64 wwid) 777 { 778 struct _raid_device *raid_device, *r; 779 780 r = NULL; 781 list_for_each_entry(raid_device, &ioc->raid_device_list, list) { 782 if (raid_device->wwid != wwid) 783 continue; 784 r = raid_device; 785 goto out; 786 } 787 788 out: 789 return r; 790 } 791 792 /** 793 * _scsih_raid_device_add - add raid_device object 794 * @ioc: per adapter object 795 * @raid_device: raid_device object 796 * 797 * This is added to the raid_device_list link list. 798 */ 799 static void 800 _scsih_raid_device_add(struct MPT3SAS_ADAPTER *ioc, 801 struct _raid_device *raid_device) 802 { 803 unsigned long flags; 804 805 dewtprintk(ioc, pr_info(MPT3SAS_FMT 806 "%s: handle(0x%04x), wwid(0x%016llx)\n", ioc->name, __func__, 807 raid_device->handle, (unsigned long long)raid_device->wwid)); 808 809 spin_lock_irqsave(&ioc->raid_device_lock, flags); 810 list_add_tail(&raid_device->list, &ioc->raid_device_list); 811 spin_unlock_irqrestore(&ioc->raid_device_lock, flags); 812 } 813 814 /** 815 * _scsih_raid_device_remove - delete raid_device object 816 * @ioc: per adapter object 817 * @raid_device: raid_device object 818 * 819 */ 820 static void 821 _scsih_raid_device_remove(struct MPT3SAS_ADAPTER *ioc, 822 struct _raid_device *raid_device) 823 { 824 unsigned long flags; 825 826 spin_lock_irqsave(&ioc->raid_device_lock, flags); 827 list_del(&raid_device->list); 828 kfree(raid_device); 829 spin_unlock_irqrestore(&ioc->raid_device_lock, flags); 830 } 831 832 /** 833 * mpt3sas_scsih_expander_find_by_handle - expander device search 834 * @ioc: per adapter object 835 * @handle: expander handle (assigned by firmware) 836 * Context: Calling function should acquire ioc->sas_device_lock 837 * 838 * This searches for expander device based on handle, then returns the 839 * sas_node object. 840 */ 841 struct _sas_node * 842 mpt3sas_scsih_expander_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle) 843 { 844 struct _sas_node *sas_expander, *r; 845 846 r = NULL; 847 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) { 848 if (sas_expander->handle != handle) 849 continue; 850 r = sas_expander; 851 goto out; 852 } 853 out: 854 return r; 855 } 856 857 /** 858 * mpt3sas_scsih_expander_find_by_sas_address - expander device search 859 * @ioc: per adapter object 860 * @sas_address: sas address 861 * Context: Calling function should acquire ioc->sas_node_lock. 862 * 863 * This searches for expander device based on sas_address, then returns the 864 * sas_node object. 865 */ 866 struct _sas_node * 867 mpt3sas_scsih_expander_find_by_sas_address(struct MPT3SAS_ADAPTER *ioc, 868 u64 sas_address) 869 { 870 struct _sas_node *sas_expander, *r; 871 872 r = NULL; 873 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) { 874 if (sas_expander->sas_address != sas_address) 875 continue; 876 r = sas_expander; 877 goto out; 878 } 879 out: 880 return r; 881 } 882 883 /** 884 * _scsih_expander_node_add - insert expander device to the list. 885 * @ioc: per adapter object 886 * @sas_expander: the sas_device object 887 * Context: This function will acquire ioc->sas_node_lock. 888 * 889 * Adding new object to the ioc->sas_expander_list. 890 * 891 * Return nothing. 892 */ 893 static void 894 _scsih_expander_node_add(struct MPT3SAS_ADAPTER *ioc, 895 struct _sas_node *sas_expander) 896 { 897 unsigned long flags; 898 899 spin_lock_irqsave(&ioc->sas_node_lock, flags); 900 list_add_tail(&sas_expander->list, &ioc->sas_expander_list); 901 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 902 } 903 904 /** 905 * _scsih_is_end_device - determines if device is an end device 906 * @device_info: bitfield providing information about the device. 907 * Context: none 908 * 909 * Returns 1 if end device. 910 */ 911 static int 912 _scsih_is_end_device(u32 device_info) 913 { 914 if (device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE && 915 ((device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) | 916 (device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) | 917 (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE))) 918 return 1; 919 else 920 return 0; 921 } 922 923 /** 924 * _scsih_scsi_lookup_get - returns scmd entry 925 * @ioc: per adapter object 926 * @smid: system request message index 927 * 928 * Returns the smid stored scmd pointer. 929 */ 930 static struct scsi_cmnd * 931 _scsih_scsi_lookup_get(struct MPT3SAS_ADAPTER *ioc, u16 smid) 932 { 933 return ioc->scsi_lookup[smid - 1].scmd; 934 } 935 936 /** 937 * _scsih_scsi_lookup_get_clear - returns scmd entry 938 * @ioc: per adapter object 939 * @smid: system request message index 940 * 941 * Returns the smid stored scmd pointer. 942 * Then will derefrence the stored scmd pointer. 943 */ 944 static inline struct scsi_cmnd * 945 _scsih_scsi_lookup_get_clear(struct MPT3SAS_ADAPTER *ioc, u16 smid) 946 { 947 unsigned long flags; 948 struct scsi_cmnd *scmd; 949 950 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 951 scmd = ioc->scsi_lookup[smid - 1].scmd; 952 ioc->scsi_lookup[smid - 1].scmd = NULL; 953 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 954 955 return scmd; 956 } 957 958 /** 959 * _scsih_scsi_lookup_find_by_scmd - scmd lookup 960 * @ioc: per adapter object 961 * @smid: system request message index 962 * @scmd: pointer to scsi command object 963 * Context: This function will acquire ioc->scsi_lookup_lock. 964 * 965 * This will search for a scmd pointer in the scsi_lookup array, 966 * returning the revelent smid. A returned value of zero means invalid. 967 */ 968 static u16 969 _scsih_scsi_lookup_find_by_scmd(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd 970 *scmd) 971 { 972 u16 smid; 973 unsigned long flags; 974 int i; 975 976 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 977 smid = 0; 978 for (i = 0; i < ioc->scsiio_depth; i++) { 979 if (ioc->scsi_lookup[i].scmd == scmd) { 980 smid = ioc->scsi_lookup[i].smid; 981 goto out; 982 } 983 } 984 out: 985 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 986 return smid; 987 } 988 989 /** 990 * _scsih_scsi_lookup_find_by_target - search for matching channel:id 991 * @ioc: per adapter object 992 * @id: target id 993 * @channel: channel 994 * Context: This function will acquire ioc->scsi_lookup_lock. 995 * 996 * This will search for a matching channel:id in the scsi_lookup array, 997 * returning 1 if found. 998 */ 999 static u8 1000 _scsih_scsi_lookup_find_by_target(struct MPT3SAS_ADAPTER *ioc, int id, 1001 int channel) 1002 { 1003 u8 found; 1004 unsigned long flags; 1005 int i; 1006 1007 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 1008 found = 0; 1009 for (i = 0 ; i < ioc->scsiio_depth; i++) { 1010 if (ioc->scsi_lookup[i].scmd && 1011 (ioc->scsi_lookup[i].scmd->device->id == id && 1012 ioc->scsi_lookup[i].scmd->device->channel == channel)) { 1013 found = 1; 1014 goto out; 1015 } 1016 } 1017 out: 1018 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1019 return found; 1020 } 1021 1022 /** 1023 * _scsih_scsi_lookup_find_by_lun - search for matching channel:id:lun 1024 * @ioc: per adapter object 1025 * @id: target id 1026 * @lun: lun number 1027 * @channel: channel 1028 * Context: This function will acquire ioc->scsi_lookup_lock. 1029 * 1030 * This will search for a matching channel:id:lun in the scsi_lookup array, 1031 * returning 1 if found. 1032 */ 1033 static u8 1034 _scsih_scsi_lookup_find_by_lun(struct MPT3SAS_ADAPTER *ioc, int id, 1035 unsigned int lun, int channel) 1036 { 1037 u8 found; 1038 unsigned long flags; 1039 int i; 1040 1041 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 1042 found = 0; 1043 for (i = 0 ; i < ioc->scsiio_depth; i++) { 1044 if (ioc->scsi_lookup[i].scmd && 1045 (ioc->scsi_lookup[i].scmd->device->id == id && 1046 ioc->scsi_lookup[i].scmd->device->channel == channel && 1047 ioc->scsi_lookup[i].scmd->device->lun == lun)) { 1048 found = 1; 1049 goto out; 1050 } 1051 } 1052 out: 1053 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1054 return found; 1055 } 1056 1057 /** 1058 * _scsih_change_queue_depth - setting device queue depth 1059 * @sdev: scsi device struct 1060 * @qdepth: requested queue depth 1061 * 1062 * Returns queue depth. 1063 */ 1064 static int 1065 _scsih_change_queue_depth(struct scsi_device *sdev, int qdepth) 1066 { 1067 struct Scsi_Host *shost = sdev->host; 1068 int max_depth; 1069 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 1070 struct MPT3SAS_DEVICE *sas_device_priv_data; 1071 struct MPT3SAS_TARGET *sas_target_priv_data; 1072 struct _sas_device *sas_device; 1073 unsigned long flags; 1074 1075 max_depth = shost->can_queue; 1076 1077 /* limit max device queue for SATA to 32 */ 1078 sas_device_priv_data = sdev->hostdata; 1079 if (!sas_device_priv_data) 1080 goto not_sata; 1081 sas_target_priv_data = sas_device_priv_data->sas_target; 1082 if (!sas_target_priv_data) 1083 goto not_sata; 1084 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) 1085 goto not_sata; 1086 spin_lock_irqsave(&ioc->sas_device_lock, flags); 1087 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, 1088 sas_device_priv_data->sas_target->sas_address); 1089 if (sas_device && sas_device->device_info & 1090 MPI2_SAS_DEVICE_INFO_SATA_DEVICE) 1091 max_depth = MPT3SAS_SATA_QUEUE_DEPTH; 1092 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 1093 1094 not_sata: 1095 1096 if (!sdev->tagged_supported) 1097 max_depth = 1; 1098 if (qdepth > max_depth) 1099 qdepth = max_depth; 1100 return scsi_change_queue_depth(sdev, qdepth); 1101 } 1102 1103 /** 1104 * _scsih_target_alloc - target add routine 1105 * @starget: scsi target struct 1106 * 1107 * Returns 0 if ok. Any other return is assumed to be an error and 1108 * the device is ignored. 1109 */ 1110 static int 1111 _scsih_target_alloc(struct scsi_target *starget) 1112 { 1113 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 1114 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 1115 struct MPT3SAS_TARGET *sas_target_priv_data; 1116 struct _sas_device *sas_device; 1117 struct _raid_device *raid_device; 1118 unsigned long flags; 1119 struct sas_rphy *rphy; 1120 1121 sas_target_priv_data = kzalloc(sizeof(*sas_target_priv_data), 1122 GFP_KERNEL); 1123 if (!sas_target_priv_data) 1124 return -ENOMEM; 1125 1126 starget->hostdata = sas_target_priv_data; 1127 sas_target_priv_data->starget = starget; 1128 sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE; 1129 1130 /* RAID volumes */ 1131 if (starget->channel == RAID_CHANNEL) { 1132 spin_lock_irqsave(&ioc->raid_device_lock, flags); 1133 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id, 1134 starget->channel); 1135 if (raid_device) { 1136 sas_target_priv_data->handle = raid_device->handle; 1137 sas_target_priv_data->sas_address = raid_device->wwid; 1138 sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME; 1139 raid_device->starget = starget; 1140 } 1141 spin_unlock_irqrestore(&ioc->raid_device_lock, flags); 1142 return 0; 1143 } 1144 1145 /* sas/sata devices */ 1146 spin_lock_irqsave(&ioc->sas_device_lock, flags); 1147 rphy = dev_to_rphy(starget->dev.parent); 1148 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, 1149 rphy->identify.sas_address); 1150 1151 if (sas_device) { 1152 sas_target_priv_data->handle = sas_device->handle; 1153 sas_target_priv_data->sas_address = sas_device->sas_address; 1154 sas_device->starget = starget; 1155 sas_device->id = starget->id; 1156 sas_device->channel = starget->channel; 1157 if (test_bit(sas_device->handle, ioc->pd_handles)) 1158 sas_target_priv_data->flags |= 1159 MPT_TARGET_FLAGS_RAID_COMPONENT; 1160 if (sas_device->fast_path) 1161 sas_target_priv_data->flags |= MPT_TARGET_FASTPATH_IO; 1162 } 1163 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 1164 1165 return 0; 1166 } 1167 1168 /** 1169 * _scsih_target_destroy - target destroy routine 1170 * @starget: scsi target struct 1171 * 1172 * Returns nothing. 1173 */ 1174 static void 1175 _scsih_target_destroy(struct scsi_target *starget) 1176 { 1177 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 1178 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 1179 struct MPT3SAS_TARGET *sas_target_priv_data; 1180 struct _sas_device *sas_device; 1181 struct _raid_device *raid_device; 1182 unsigned long flags; 1183 struct sas_rphy *rphy; 1184 1185 sas_target_priv_data = starget->hostdata; 1186 if (!sas_target_priv_data) 1187 return; 1188 1189 if (starget->channel == RAID_CHANNEL) { 1190 spin_lock_irqsave(&ioc->raid_device_lock, flags); 1191 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id, 1192 starget->channel); 1193 if (raid_device) { 1194 raid_device->starget = NULL; 1195 raid_device->sdev = NULL; 1196 } 1197 spin_unlock_irqrestore(&ioc->raid_device_lock, flags); 1198 goto out; 1199 } 1200 1201 spin_lock_irqsave(&ioc->sas_device_lock, flags); 1202 rphy = dev_to_rphy(starget->dev.parent); 1203 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, 1204 rphy->identify.sas_address); 1205 if (sas_device && (sas_device->starget == starget) && 1206 (sas_device->id == starget->id) && 1207 (sas_device->channel == starget->channel)) 1208 sas_device->starget = NULL; 1209 1210 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 1211 1212 out: 1213 kfree(sas_target_priv_data); 1214 starget->hostdata = NULL; 1215 } 1216 1217 /** 1218 * _scsih_slave_alloc - device add routine 1219 * @sdev: scsi device struct 1220 * 1221 * Returns 0 if ok. Any other return is assumed to be an error and 1222 * the device is ignored. 1223 */ 1224 static int 1225 _scsih_slave_alloc(struct scsi_device *sdev) 1226 { 1227 struct Scsi_Host *shost; 1228 struct MPT3SAS_ADAPTER *ioc; 1229 struct MPT3SAS_TARGET *sas_target_priv_data; 1230 struct MPT3SAS_DEVICE *sas_device_priv_data; 1231 struct scsi_target *starget; 1232 struct _raid_device *raid_device; 1233 struct _sas_device *sas_device; 1234 unsigned long flags; 1235 1236 sas_device_priv_data = kzalloc(sizeof(*sas_device_priv_data), 1237 GFP_KERNEL); 1238 if (!sas_device_priv_data) 1239 return -ENOMEM; 1240 1241 sas_device_priv_data->lun = sdev->lun; 1242 sas_device_priv_data->flags = MPT_DEVICE_FLAGS_INIT; 1243 1244 starget = scsi_target(sdev); 1245 sas_target_priv_data = starget->hostdata; 1246 sas_target_priv_data->num_luns++; 1247 sas_device_priv_data->sas_target = sas_target_priv_data; 1248 sdev->hostdata = sas_device_priv_data; 1249 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT)) 1250 sdev->no_uld_attach = 1; 1251 1252 shost = dev_to_shost(&starget->dev); 1253 ioc = shost_priv(shost); 1254 if (starget->channel == RAID_CHANNEL) { 1255 spin_lock_irqsave(&ioc->raid_device_lock, flags); 1256 raid_device = _scsih_raid_device_find_by_id(ioc, 1257 starget->id, starget->channel); 1258 if (raid_device) 1259 raid_device->sdev = sdev; /* raid is single lun */ 1260 spin_unlock_irqrestore(&ioc->raid_device_lock, flags); 1261 } 1262 1263 if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) { 1264 spin_lock_irqsave(&ioc->sas_device_lock, flags); 1265 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, 1266 sas_target_priv_data->sas_address); 1267 if (sas_device && (sas_device->starget == NULL)) { 1268 sdev_printk(KERN_INFO, sdev, 1269 "%s : sas_device->starget set to starget @ %d\n", 1270 __func__, __LINE__); 1271 sas_device->starget = starget; 1272 } 1273 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 1274 } 1275 1276 return 0; 1277 } 1278 1279 /** 1280 * _scsih_slave_destroy - device destroy routine 1281 * @sdev: scsi device struct 1282 * 1283 * Returns nothing. 1284 */ 1285 static void 1286 _scsih_slave_destroy(struct scsi_device *sdev) 1287 { 1288 struct MPT3SAS_TARGET *sas_target_priv_data; 1289 struct scsi_target *starget; 1290 struct Scsi_Host *shost; 1291 struct MPT3SAS_ADAPTER *ioc; 1292 struct _sas_device *sas_device; 1293 unsigned long flags; 1294 1295 if (!sdev->hostdata) 1296 return; 1297 1298 starget = scsi_target(sdev); 1299 sas_target_priv_data = starget->hostdata; 1300 sas_target_priv_data->num_luns--; 1301 1302 shost = dev_to_shost(&starget->dev); 1303 ioc = shost_priv(shost); 1304 1305 if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) { 1306 spin_lock_irqsave(&ioc->sas_device_lock, flags); 1307 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, 1308 sas_target_priv_data->sas_address); 1309 if (sas_device && !sas_target_priv_data->num_luns) 1310 sas_device->starget = NULL; 1311 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 1312 } 1313 1314 kfree(sdev->hostdata); 1315 sdev->hostdata = NULL; 1316 } 1317 1318 /** 1319 * _scsih_display_sata_capabilities - sata capabilities 1320 * @ioc: per adapter object 1321 * @handle: device handle 1322 * @sdev: scsi device struct 1323 */ 1324 static void 1325 _scsih_display_sata_capabilities(struct MPT3SAS_ADAPTER *ioc, 1326 u16 handle, struct scsi_device *sdev) 1327 { 1328 Mpi2ConfigReply_t mpi_reply; 1329 Mpi2SasDevicePage0_t sas_device_pg0; 1330 u32 ioc_status; 1331 u16 flags; 1332 u32 device_info; 1333 1334 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0, 1335 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) { 1336 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1337 ioc->name, __FILE__, __LINE__, __func__); 1338 return; 1339 } 1340 1341 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 1342 MPI2_IOCSTATUS_MASK; 1343 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 1344 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1345 ioc->name, __FILE__, __LINE__, __func__); 1346 return; 1347 } 1348 1349 flags = le16_to_cpu(sas_device_pg0.Flags); 1350 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo); 1351 1352 sdev_printk(KERN_INFO, sdev, 1353 "atapi(%s), ncq(%s), asyn_notify(%s), smart(%s), fua(%s), " 1354 "sw_preserve(%s)\n", 1355 (device_info & MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? "y" : "n", 1356 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED) ? "y" : "n", 1357 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_ASYNCHRONOUS_NOTIFY) ? "y" : 1358 "n", 1359 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SMART_SUPPORTED) ? "y" : "n", 1360 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED) ? "y" : "n", 1361 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SW_PRESERVE) ? "y" : "n"); 1362 } 1363 1364 /* 1365 * raid transport support - 1366 * Enabled for SLES11 and newer, in older kernels the driver will panic when 1367 * unloading the driver followed by a load - I beleive that the subroutine 1368 * raid_class_release() is not cleaning up properly. 1369 */ 1370 1371 /** 1372 * _scsih_is_raid - return boolean indicating device is raid volume 1373 * @dev the device struct object 1374 */ 1375 static int 1376 _scsih_is_raid(struct device *dev) 1377 { 1378 struct scsi_device *sdev = to_scsi_device(dev); 1379 1380 return (sdev->channel == RAID_CHANNEL) ? 1 : 0; 1381 } 1382 1383 /** 1384 * _scsih_get_resync - get raid volume resync percent complete 1385 * @dev the device struct object 1386 */ 1387 static void 1388 _scsih_get_resync(struct device *dev) 1389 { 1390 struct scsi_device *sdev = to_scsi_device(dev); 1391 struct MPT3SAS_ADAPTER *ioc = shost_priv(sdev->host); 1392 static struct _raid_device *raid_device; 1393 unsigned long flags; 1394 Mpi2RaidVolPage0_t vol_pg0; 1395 Mpi2ConfigReply_t mpi_reply; 1396 u32 volume_status_flags; 1397 u8 percent_complete; 1398 u16 handle; 1399 1400 percent_complete = 0; 1401 handle = 0; 1402 spin_lock_irqsave(&ioc->raid_device_lock, flags); 1403 raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id, 1404 sdev->channel); 1405 if (raid_device) { 1406 handle = raid_device->handle; 1407 percent_complete = raid_device->percent_complete; 1408 } 1409 spin_unlock_irqrestore(&ioc->raid_device_lock, flags); 1410 1411 if (!handle) 1412 goto out; 1413 1414 if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0, 1415 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle, 1416 sizeof(Mpi2RaidVolPage0_t))) { 1417 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1418 ioc->name, __FILE__, __LINE__, __func__); 1419 percent_complete = 0; 1420 goto out; 1421 } 1422 1423 volume_status_flags = le32_to_cpu(vol_pg0.VolumeStatusFlags); 1424 if (!(volume_status_flags & 1425 MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS)) 1426 percent_complete = 0; 1427 1428 out: 1429 raid_set_resync(mpt3sas_raid_template, dev, percent_complete); 1430 } 1431 1432 /** 1433 * _scsih_get_state - get raid volume level 1434 * @dev the device struct object 1435 */ 1436 static void 1437 _scsih_get_state(struct device *dev) 1438 { 1439 struct scsi_device *sdev = to_scsi_device(dev); 1440 struct MPT3SAS_ADAPTER *ioc = shost_priv(sdev->host); 1441 static struct _raid_device *raid_device; 1442 unsigned long flags; 1443 Mpi2RaidVolPage0_t vol_pg0; 1444 Mpi2ConfigReply_t mpi_reply; 1445 u32 volstate; 1446 enum raid_state state = RAID_STATE_UNKNOWN; 1447 u16 handle = 0; 1448 1449 spin_lock_irqsave(&ioc->raid_device_lock, flags); 1450 raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id, 1451 sdev->channel); 1452 if (raid_device) 1453 handle = raid_device->handle; 1454 spin_unlock_irqrestore(&ioc->raid_device_lock, flags); 1455 1456 if (!raid_device) 1457 goto out; 1458 1459 if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0, 1460 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle, 1461 sizeof(Mpi2RaidVolPage0_t))) { 1462 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1463 ioc->name, __FILE__, __LINE__, __func__); 1464 goto out; 1465 } 1466 1467 volstate = le32_to_cpu(vol_pg0.VolumeStatusFlags); 1468 if (volstate & MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS) { 1469 state = RAID_STATE_RESYNCING; 1470 goto out; 1471 } 1472 1473 switch (vol_pg0.VolumeState) { 1474 case MPI2_RAID_VOL_STATE_OPTIMAL: 1475 case MPI2_RAID_VOL_STATE_ONLINE: 1476 state = RAID_STATE_ACTIVE; 1477 break; 1478 case MPI2_RAID_VOL_STATE_DEGRADED: 1479 state = RAID_STATE_DEGRADED; 1480 break; 1481 case MPI2_RAID_VOL_STATE_FAILED: 1482 case MPI2_RAID_VOL_STATE_MISSING: 1483 state = RAID_STATE_OFFLINE; 1484 break; 1485 } 1486 out: 1487 raid_set_state(mpt3sas_raid_template, dev, state); 1488 } 1489 1490 /** 1491 * _scsih_set_level - set raid level 1492 * @sdev: scsi device struct 1493 * @volume_type: volume type 1494 */ 1495 static void 1496 _scsih_set_level(struct scsi_device *sdev, u8 volume_type) 1497 { 1498 enum raid_level level = RAID_LEVEL_UNKNOWN; 1499 1500 switch (volume_type) { 1501 case MPI2_RAID_VOL_TYPE_RAID0: 1502 level = RAID_LEVEL_0; 1503 break; 1504 case MPI2_RAID_VOL_TYPE_RAID10: 1505 level = RAID_LEVEL_10; 1506 break; 1507 case MPI2_RAID_VOL_TYPE_RAID1E: 1508 level = RAID_LEVEL_1E; 1509 break; 1510 case MPI2_RAID_VOL_TYPE_RAID1: 1511 level = RAID_LEVEL_1; 1512 break; 1513 } 1514 1515 raid_set_level(mpt3sas_raid_template, &sdev->sdev_gendev, level); 1516 } 1517 1518 1519 /** 1520 * _scsih_get_volume_capabilities - volume capabilities 1521 * @ioc: per adapter object 1522 * @sas_device: the raid_device object 1523 * 1524 * Returns 0 for success, else 1 1525 */ 1526 static int 1527 _scsih_get_volume_capabilities(struct MPT3SAS_ADAPTER *ioc, 1528 struct _raid_device *raid_device) 1529 { 1530 Mpi2RaidVolPage0_t *vol_pg0; 1531 Mpi2RaidPhysDiskPage0_t pd_pg0; 1532 Mpi2SasDevicePage0_t sas_device_pg0; 1533 Mpi2ConfigReply_t mpi_reply; 1534 u16 sz; 1535 u8 num_pds; 1536 1537 if ((mpt3sas_config_get_number_pds(ioc, raid_device->handle, 1538 &num_pds)) || !num_pds) { 1539 dfailprintk(ioc, pr_warn(MPT3SAS_FMT 1540 "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__, 1541 __func__)); 1542 return 1; 1543 } 1544 1545 raid_device->num_pds = num_pds; 1546 sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds * 1547 sizeof(Mpi2RaidVol0PhysDisk_t)); 1548 vol_pg0 = kzalloc(sz, GFP_KERNEL); 1549 if (!vol_pg0) { 1550 dfailprintk(ioc, pr_warn(MPT3SAS_FMT 1551 "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__, 1552 __func__)); 1553 return 1; 1554 } 1555 1556 if ((mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0, 1557 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) { 1558 dfailprintk(ioc, pr_warn(MPT3SAS_FMT 1559 "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__, 1560 __func__)); 1561 kfree(vol_pg0); 1562 return 1; 1563 } 1564 1565 raid_device->volume_type = vol_pg0->VolumeType; 1566 1567 /* figure out what the underlying devices are by 1568 * obtaining the device_info bits for the 1st device 1569 */ 1570 if (!(mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply, 1571 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM, 1572 vol_pg0->PhysDisk[0].PhysDiskNum))) { 1573 if (!(mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, 1574 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, 1575 le16_to_cpu(pd_pg0.DevHandle)))) { 1576 raid_device->device_info = 1577 le32_to_cpu(sas_device_pg0.DeviceInfo); 1578 } 1579 } 1580 1581 kfree(vol_pg0); 1582 return 0; 1583 } 1584 1585 1586 1587 /** 1588 * _scsih_enable_tlr - setting TLR flags 1589 * @ioc: per adapter object 1590 * @sdev: scsi device struct 1591 * 1592 * Enabling Transaction Layer Retries for tape devices when 1593 * vpd page 0x90 is present 1594 * 1595 */ 1596 static void 1597 _scsih_enable_tlr(struct MPT3SAS_ADAPTER *ioc, struct scsi_device *sdev) 1598 { 1599 1600 /* only for TAPE */ 1601 if (sdev->type != TYPE_TAPE) 1602 return; 1603 1604 if (!(ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR)) 1605 return; 1606 1607 sas_enable_tlr(sdev); 1608 sdev_printk(KERN_INFO, sdev, "TLR %s\n", 1609 sas_is_tlr_enabled(sdev) ? "Enabled" : "Disabled"); 1610 return; 1611 1612 } 1613 1614 /** 1615 * _scsih_slave_configure - device configure routine. 1616 * @sdev: scsi device struct 1617 * 1618 * Returns 0 if ok. Any other return is assumed to be an error and 1619 * the device is ignored. 1620 */ 1621 static int 1622 _scsih_slave_configure(struct scsi_device *sdev) 1623 { 1624 struct Scsi_Host *shost = sdev->host; 1625 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 1626 struct MPT3SAS_DEVICE *sas_device_priv_data; 1627 struct MPT3SAS_TARGET *sas_target_priv_data; 1628 struct _sas_device *sas_device; 1629 struct _raid_device *raid_device; 1630 unsigned long flags; 1631 int qdepth; 1632 u8 ssp_target = 0; 1633 char *ds = ""; 1634 char *r_level = ""; 1635 u16 handle, volume_handle = 0; 1636 u64 volume_wwid = 0; 1637 1638 qdepth = 1; 1639 sas_device_priv_data = sdev->hostdata; 1640 sas_device_priv_data->configured_lun = 1; 1641 sas_device_priv_data->flags &= ~MPT_DEVICE_FLAGS_INIT; 1642 sas_target_priv_data = sas_device_priv_data->sas_target; 1643 handle = sas_target_priv_data->handle; 1644 1645 /* raid volume handling */ 1646 if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME) { 1647 1648 spin_lock_irqsave(&ioc->raid_device_lock, flags); 1649 raid_device = _scsih_raid_device_find_by_handle(ioc, handle); 1650 spin_unlock_irqrestore(&ioc->raid_device_lock, flags); 1651 if (!raid_device) { 1652 dfailprintk(ioc, pr_warn(MPT3SAS_FMT 1653 "failure at %s:%d/%s()!\n", ioc->name, __FILE__, 1654 __LINE__, __func__)); 1655 return 1; 1656 } 1657 1658 if (_scsih_get_volume_capabilities(ioc, raid_device)) { 1659 dfailprintk(ioc, pr_warn(MPT3SAS_FMT 1660 "failure at %s:%d/%s()!\n", ioc->name, __FILE__, 1661 __LINE__, __func__)); 1662 return 1; 1663 } 1664 1665 1666 /* RAID Queue Depth Support 1667 * IS volume = underlying qdepth of drive type, either 1668 * MPT3SAS_SAS_QUEUE_DEPTH or MPT3SAS_SATA_QUEUE_DEPTH 1669 * IM/IME/R10 = 128 (MPT3SAS_RAID_QUEUE_DEPTH) 1670 */ 1671 if (raid_device->device_info & 1672 MPI2_SAS_DEVICE_INFO_SSP_TARGET) { 1673 qdepth = MPT3SAS_SAS_QUEUE_DEPTH; 1674 ds = "SSP"; 1675 } else { 1676 qdepth = MPT3SAS_SATA_QUEUE_DEPTH; 1677 if (raid_device->device_info & 1678 MPI2_SAS_DEVICE_INFO_SATA_DEVICE) 1679 ds = "SATA"; 1680 else 1681 ds = "STP"; 1682 } 1683 1684 switch (raid_device->volume_type) { 1685 case MPI2_RAID_VOL_TYPE_RAID0: 1686 r_level = "RAID0"; 1687 break; 1688 case MPI2_RAID_VOL_TYPE_RAID1E: 1689 qdepth = MPT3SAS_RAID_QUEUE_DEPTH; 1690 if (ioc->manu_pg10.OEMIdentifier && 1691 (le32_to_cpu(ioc->manu_pg10.GenericFlags0) & 1692 MFG10_GF0_R10_DISPLAY) && 1693 !(raid_device->num_pds % 2)) 1694 r_level = "RAID10"; 1695 else 1696 r_level = "RAID1E"; 1697 break; 1698 case MPI2_RAID_VOL_TYPE_RAID1: 1699 qdepth = MPT3SAS_RAID_QUEUE_DEPTH; 1700 r_level = "RAID1"; 1701 break; 1702 case MPI2_RAID_VOL_TYPE_RAID10: 1703 qdepth = MPT3SAS_RAID_QUEUE_DEPTH; 1704 r_level = "RAID10"; 1705 break; 1706 case MPI2_RAID_VOL_TYPE_UNKNOWN: 1707 default: 1708 qdepth = MPT3SAS_RAID_QUEUE_DEPTH; 1709 r_level = "RAIDX"; 1710 break; 1711 } 1712 1713 sdev_printk(KERN_INFO, sdev, 1714 "%s: handle(0x%04x), wwid(0x%016llx), pd_count(%d), type(%s)\n", 1715 r_level, raid_device->handle, 1716 (unsigned long long)raid_device->wwid, 1717 raid_device->num_pds, ds); 1718 1719 1720 _scsih_change_queue_depth(sdev, qdepth); 1721 1722 /* raid transport support */ 1723 _scsih_set_level(sdev, raid_device->volume_type); 1724 return 0; 1725 } 1726 1727 /* non-raid handling */ 1728 if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) { 1729 if (mpt3sas_config_get_volume_handle(ioc, handle, 1730 &volume_handle)) { 1731 dfailprintk(ioc, pr_warn(MPT3SAS_FMT 1732 "failure at %s:%d/%s()!\n", ioc->name, 1733 __FILE__, __LINE__, __func__)); 1734 return 1; 1735 } 1736 if (volume_handle && mpt3sas_config_get_volume_wwid(ioc, 1737 volume_handle, &volume_wwid)) { 1738 dfailprintk(ioc, pr_warn(MPT3SAS_FMT 1739 "failure at %s:%d/%s()!\n", ioc->name, 1740 __FILE__, __LINE__, __func__)); 1741 return 1; 1742 } 1743 } 1744 1745 spin_lock_irqsave(&ioc->sas_device_lock, flags); 1746 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, 1747 sas_device_priv_data->sas_target->sas_address); 1748 if (!sas_device) { 1749 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 1750 dfailprintk(ioc, pr_warn(MPT3SAS_FMT 1751 "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__, 1752 __func__)); 1753 return 1; 1754 } 1755 1756 sas_device->volume_handle = volume_handle; 1757 sas_device->volume_wwid = volume_wwid; 1758 if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) { 1759 qdepth = MPT3SAS_SAS_QUEUE_DEPTH; 1760 ssp_target = 1; 1761 ds = "SSP"; 1762 } else { 1763 qdepth = MPT3SAS_SATA_QUEUE_DEPTH; 1764 if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) 1765 ds = "STP"; 1766 else if (sas_device->device_info & 1767 MPI2_SAS_DEVICE_INFO_SATA_DEVICE) 1768 ds = "SATA"; 1769 } 1770 1771 sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), " \ 1772 "sas_addr(0x%016llx), phy(%d), device_name(0x%016llx)\n", 1773 ds, handle, (unsigned long long)sas_device->sas_address, 1774 sas_device->phy, (unsigned long long)sas_device->device_name); 1775 sdev_printk(KERN_INFO, sdev, 1776 "%s: enclosure_logical_id(0x%016llx), slot(%d)\n", 1777 ds, (unsigned long long) 1778 sas_device->enclosure_logical_id, sas_device->slot); 1779 1780 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 1781 1782 if (!ssp_target) 1783 _scsih_display_sata_capabilities(ioc, handle, sdev); 1784 1785 1786 _scsih_change_queue_depth(sdev, qdepth); 1787 1788 if (ssp_target) { 1789 sas_read_port_mode_page(sdev); 1790 _scsih_enable_tlr(ioc, sdev); 1791 } 1792 1793 return 0; 1794 } 1795 1796 /** 1797 * _scsih_bios_param - fetch head, sector, cylinder info for a disk 1798 * @sdev: scsi device struct 1799 * @bdev: pointer to block device context 1800 * @capacity: device size (in 512 byte sectors) 1801 * @params: three element array to place output: 1802 * params[0] number of heads (max 255) 1803 * params[1] number of sectors (max 63) 1804 * params[2] number of cylinders 1805 * 1806 * Return nothing. 1807 */ 1808 static int 1809 _scsih_bios_param(struct scsi_device *sdev, struct block_device *bdev, 1810 sector_t capacity, int params[]) 1811 { 1812 int heads; 1813 int sectors; 1814 sector_t cylinders; 1815 ulong dummy; 1816 1817 heads = 64; 1818 sectors = 32; 1819 1820 dummy = heads * sectors; 1821 cylinders = capacity; 1822 sector_div(cylinders, dummy); 1823 1824 /* 1825 * Handle extended translation size for logical drives 1826 * > 1Gb 1827 */ 1828 if ((ulong)capacity >= 0x200000) { 1829 heads = 255; 1830 sectors = 63; 1831 dummy = heads * sectors; 1832 cylinders = capacity; 1833 sector_div(cylinders, dummy); 1834 } 1835 1836 /* return result */ 1837 params[0] = heads; 1838 params[1] = sectors; 1839 params[2] = cylinders; 1840 1841 return 0; 1842 } 1843 1844 /** 1845 * _scsih_response_code - translation of device response code 1846 * @ioc: per adapter object 1847 * @response_code: response code returned by the device 1848 * 1849 * Return nothing. 1850 */ 1851 static void 1852 _scsih_response_code(struct MPT3SAS_ADAPTER *ioc, u8 response_code) 1853 { 1854 char *desc; 1855 1856 switch (response_code) { 1857 case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE: 1858 desc = "task management request completed"; 1859 break; 1860 case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME: 1861 desc = "invalid frame"; 1862 break; 1863 case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED: 1864 desc = "task management request not supported"; 1865 break; 1866 case MPI2_SCSITASKMGMT_RSP_TM_FAILED: 1867 desc = "task management request failed"; 1868 break; 1869 case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED: 1870 desc = "task management request succeeded"; 1871 break; 1872 case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN: 1873 desc = "invalid lun"; 1874 break; 1875 case 0xA: 1876 desc = "overlapped tag attempted"; 1877 break; 1878 case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC: 1879 desc = "task queued, however not sent to target"; 1880 break; 1881 default: 1882 desc = "unknown"; 1883 break; 1884 } 1885 pr_warn(MPT3SAS_FMT "response_code(0x%01x): %s\n", 1886 ioc->name, response_code, desc); 1887 } 1888 1889 /** 1890 * _scsih_tm_done - tm completion routine 1891 * @ioc: per adapter object 1892 * @smid: system request message index 1893 * @msix_index: MSIX table index supplied by the OS 1894 * @reply: reply message frame(lower 32bit addr) 1895 * Context: none. 1896 * 1897 * The callback handler when using scsih_issue_tm. 1898 * 1899 * Return 1 meaning mf should be freed from _base_interrupt 1900 * 0 means the mf is freed from this function. 1901 */ 1902 static u8 1903 _scsih_tm_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply) 1904 { 1905 MPI2DefaultReply_t *mpi_reply; 1906 1907 if (ioc->tm_cmds.status == MPT3_CMD_NOT_USED) 1908 return 1; 1909 if (ioc->tm_cmds.smid != smid) 1910 return 1; 1911 mpt3sas_base_flush_reply_queues(ioc); 1912 ioc->tm_cmds.status |= MPT3_CMD_COMPLETE; 1913 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply); 1914 if (mpi_reply) { 1915 memcpy(ioc->tm_cmds.reply, mpi_reply, mpi_reply->MsgLength*4); 1916 ioc->tm_cmds.status |= MPT3_CMD_REPLY_VALID; 1917 } 1918 ioc->tm_cmds.status &= ~MPT3_CMD_PENDING; 1919 complete(&ioc->tm_cmds.done); 1920 return 1; 1921 } 1922 1923 /** 1924 * mpt3sas_scsih_set_tm_flag - set per target tm_busy 1925 * @ioc: per adapter object 1926 * @handle: device handle 1927 * 1928 * During taskmangement request, we need to freeze the device queue. 1929 */ 1930 void 1931 mpt3sas_scsih_set_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle) 1932 { 1933 struct MPT3SAS_DEVICE *sas_device_priv_data; 1934 struct scsi_device *sdev; 1935 u8 skip = 0; 1936 1937 shost_for_each_device(sdev, ioc->shost) { 1938 if (skip) 1939 continue; 1940 sas_device_priv_data = sdev->hostdata; 1941 if (!sas_device_priv_data) 1942 continue; 1943 if (sas_device_priv_data->sas_target->handle == handle) { 1944 sas_device_priv_data->sas_target->tm_busy = 1; 1945 skip = 1; 1946 ioc->ignore_loginfos = 1; 1947 } 1948 } 1949 } 1950 1951 /** 1952 * mpt3sas_scsih_clear_tm_flag - clear per target tm_busy 1953 * @ioc: per adapter object 1954 * @handle: device handle 1955 * 1956 * During taskmangement request, we need to freeze the device queue. 1957 */ 1958 void 1959 mpt3sas_scsih_clear_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle) 1960 { 1961 struct MPT3SAS_DEVICE *sas_device_priv_data; 1962 struct scsi_device *sdev; 1963 u8 skip = 0; 1964 1965 shost_for_each_device(sdev, ioc->shost) { 1966 if (skip) 1967 continue; 1968 sas_device_priv_data = sdev->hostdata; 1969 if (!sas_device_priv_data) 1970 continue; 1971 if (sas_device_priv_data->sas_target->handle == handle) { 1972 sas_device_priv_data->sas_target->tm_busy = 0; 1973 skip = 1; 1974 ioc->ignore_loginfos = 0; 1975 } 1976 } 1977 } 1978 1979 /** 1980 * mpt3sas_scsih_issue_tm - main routine for sending tm requests 1981 * @ioc: per adapter struct 1982 * @device_handle: device handle 1983 * @channel: the channel assigned by the OS 1984 * @id: the id assigned by the OS 1985 * @lun: lun number 1986 * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h) 1987 * @smid_task: smid assigned to the task 1988 * @timeout: timeout in seconds 1989 * @m_type: TM_MUTEX_ON or TM_MUTEX_OFF 1990 * Context: user 1991 * 1992 * A generic API for sending task management requests to firmware. 1993 * 1994 * The callback index is set inside `ioc->tm_cb_idx`. 1995 * 1996 * Return SUCCESS or FAILED. 1997 */ 1998 int 1999 mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, uint channel, 2000 uint id, uint lun, u8 type, u16 smid_task, ulong timeout, 2001 enum mutex_type m_type) 2002 { 2003 Mpi2SCSITaskManagementRequest_t *mpi_request; 2004 Mpi2SCSITaskManagementReply_t *mpi_reply; 2005 u16 smid = 0; 2006 u32 ioc_state; 2007 unsigned long timeleft; 2008 struct scsiio_tracker *scsi_lookup = NULL; 2009 int rc; 2010 2011 if (m_type == TM_MUTEX_ON) 2012 mutex_lock(&ioc->tm_cmds.mutex); 2013 if (ioc->tm_cmds.status != MPT3_CMD_NOT_USED) { 2014 pr_info(MPT3SAS_FMT "%s: tm_cmd busy!!!\n", 2015 __func__, ioc->name); 2016 rc = FAILED; 2017 goto err_out; 2018 } 2019 2020 if (ioc->shost_recovery || ioc->remove_host || 2021 ioc->pci_error_recovery) { 2022 pr_info(MPT3SAS_FMT "%s: host reset in progress!\n", 2023 __func__, ioc->name); 2024 rc = FAILED; 2025 goto err_out; 2026 } 2027 2028 ioc_state = mpt3sas_base_get_iocstate(ioc, 0); 2029 if (ioc_state & MPI2_DOORBELL_USED) { 2030 dhsprintk(ioc, pr_info(MPT3SAS_FMT 2031 "unexpected doorbell active!\n", ioc->name)); 2032 rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP, 2033 FORCE_BIG_HAMMER); 2034 rc = (!rc) ? SUCCESS : FAILED; 2035 goto err_out; 2036 } 2037 2038 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) { 2039 mpt3sas_base_fault_info(ioc, ioc_state & 2040 MPI2_DOORBELL_DATA_MASK); 2041 rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP, 2042 FORCE_BIG_HAMMER); 2043 rc = (!rc) ? SUCCESS : FAILED; 2044 goto err_out; 2045 } 2046 2047 smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_cb_idx); 2048 if (!smid) { 2049 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n", 2050 ioc->name, __func__); 2051 rc = FAILED; 2052 goto err_out; 2053 } 2054 2055 if (type == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK) 2056 scsi_lookup = &ioc->scsi_lookup[smid_task - 1]; 2057 2058 dtmprintk(ioc, pr_info(MPT3SAS_FMT 2059 "sending tm: handle(0x%04x), task_type(0x%02x), smid(%d)\n", 2060 ioc->name, handle, type, smid_task)); 2061 ioc->tm_cmds.status = MPT3_CMD_PENDING; 2062 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 2063 ioc->tm_cmds.smid = smid; 2064 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t)); 2065 memset(ioc->tm_cmds.reply, 0, sizeof(Mpi2SCSITaskManagementReply_t)); 2066 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT; 2067 mpi_request->DevHandle = cpu_to_le16(handle); 2068 mpi_request->TaskType = type; 2069 mpi_request->TaskMID = cpu_to_le16(smid_task); 2070 int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN); 2071 mpt3sas_scsih_set_tm_flag(ioc, handle); 2072 init_completion(&ioc->tm_cmds.done); 2073 mpt3sas_base_put_smid_hi_priority(ioc, smid); 2074 timeleft = wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ); 2075 if (!(ioc->tm_cmds.status & MPT3_CMD_COMPLETE)) { 2076 pr_err(MPT3SAS_FMT "%s: timeout\n", 2077 ioc->name, __func__); 2078 _debug_dump_mf(mpi_request, 2079 sizeof(Mpi2SCSITaskManagementRequest_t)/4); 2080 if (!(ioc->tm_cmds.status & MPT3_CMD_RESET)) { 2081 rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP, 2082 FORCE_BIG_HAMMER); 2083 rc = (!rc) ? SUCCESS : FAILED; 2084 ioc->tm_cmds.status = MPT3_CMD_NOT_USED; 2085 mpt3sas_scsih_clear_tm_flag(ioc, handle); 2086 goto err_out; 2087 } 2088 } 2089 2090 if (ioc->tm_cmds.status & MPT3_CMD_REPLY_VALID) { 2091 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT); 2092 mpi_reply = ioc->tm_cmds.reply; 2093 dtmprintk(ioc, pr_info(MPT3SAS_FMT "complete tm: " \ 2094 "ioc_status(0x%04x), loginfo(0x%08x), term_count(0x%08x)\n", 2095 ioc->name, le16_to_cpu(mpi_reply->IOCStatus), 2096 le32_to_cpu(mpi_reply->IOCLogInfo), 2097 le32_to_cpu(mpi_reply->TerminationCount))); 2098 if (ioc->logging_level & MPT_DEBUG_TM) { 2099 _scsih_response_code(ioc, mpi_reply->ResponseCode); 2100 if (mpi_reply->IOCStatus) 2101 _debug_dump_mf(mpi_request, 2102 sizeof(Mpi2SCSITaskManagementRequest_t)/4); 2103 } 2104 } 2105 2106 switch (type) { 2107 case MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK: 2108 rc = SUCCESS; 2109 if (scsi_lookup->scmd == NULL) 2110 break; 2111 rc = FAILED; 2112 break; 2113 2114 case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET: 2115 if (_scsih_scsi_lookup_find_by_target(ioc, id, channel)) 2116 rc = FAILED; 2117 else 2118 rc = SUCCESS; 2119 break; 2120 case MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET: 2121 case MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET: 2122 if (_scsih_scsi_lookup_find_by_lun(ioc, id, lun, channel)) 2123 rc = FAILED; 2124 else 2125 rc = SUCCESS; 2126 break; 2127 case MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK: 2128 rc = SUCCESS; 2129 break; 2130 default: 2131 rc = FAILED; 2132 break; 2133 } 2134 2135 mpt3sas_scsih_clear_tm_flag(ioc, handle); 2136 ioc->tm_cmds.status = MPT3_CMD_NOT_USED; 2137 if (m_type == TM_MUTEX_ON) 2138 mutex_unlock(&ioc->tm_cmds.mutex); 2139 2140 return rc; 2141 2142 err_out: 2143 if (m_type == TM_MUTEX_ON) 2144 mutex_unlock(&ioc->tm_cmds.mutex); 2145 return rc; 2146 } 2147 2148 /** 2149 * _scsih_tm_display_info - displays info about the device 2150 * @ioc: per adapter struct 2151 * @scmd: pointer to scsi command object 2152 * 2153 * Called by task management callback handlers. 2154 */ 2155 static void 2156 _scsih_tm_display_info(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd) 2157 { 2158 struct scsi_target *starget = scmd->device->sdev_target; 2159 struct MPT3SAS_TARGET *priv_target = starget->hostdata; 2160 struct _sas_device *sas_device = NULL; 2161 unsigned long flags; 2162 char *device_str = NULL; 2163 2164 if (!priv_target) 2165 return; 2166 device_str = "volume"; 2167 2168 scsi_print_command(scmd); 2169 if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) { 2170 starget_printk(KERN_INFO, starget, 2171 "%s handle(0x%04x), %s wwid(0x%016llx)\n", 2172 device_str, priv_target->handle, 2173 device_str, (unsigned long long)priv_target->sas_address); 2174 } else { 2175 spin_lock_irqsave(&ioc->sas_device_lock, flags); 2176 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, 2177 priv_target->sas_address); 2178 if (sas_device) { 2179 if (priv_target->flags & 2180 MPT_TARGET_FLAGS_RAID_COMPONENT) { 2181 starget_printk(KERN_INFO, starget, 2182 "volume handle(0x%04x), " 2183 "volume wwid(0x%016llx)\n", 2184 sas_device->volume_handle, 2185 (unsigned long long)sas_device->volume_wwid); 2186 } 2187 starget_printk(KERN_INFO, starget, 2188 "handle(0x%04x), sas_address(0x%016llx), phy(%d)\n", 2189 sas_device->handle, 2190 (unsigned long long)sas_device->sas_address, 2191 sas_device->phy); 2192 starget_printk(KERN_INFO, starget, 2193 "enclosure_logical_id(0x%016llx), slot(%d)\n", 2194 (unsigned long long)sas_device->enclosure_logical_id, 2195 sas_device->slot); 2196 } 2197 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 2198 } 2199 } 2200 2201 /** 2202 * _scsih_abort - eh threads main abort routine 2203 * @scmd: pointer to scsi command object 2204 * 2205 * Returns SUCCESS if command aborted else FAILED 2206 */ 2207 static int 2208 _scsih_abort(struct scsi_cmnd *scmd) 2209 { 2210 struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host); 2211 struct MPT3SAS_DEVICE *sas_device_priv_data; 2212 u16 smid; 2213 u16 handle; 2214 int r; 2215 2216 sdev_printk(KERN_INFO, scmd->device, 2217 "attempting task abort! scmd(%p)\n", scmd); 2218 _scsih_tm_display_info(ioc, scmd); 2219 2220 sas_device_priv_data = scmd->device->hostdata; 2221 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) { 2222 sdev_printk(KERN_INFO, scmd->device, 2223 "device been deleted! scmd(%p)\n", scmd); 2224 scmd->result = DID_NO_CONNECT << 16; 2225 scmd->scsi_done(scmd); 2226 r = SUCCESS; 2227 goto out; 2228 } 2229 2230 /* search for the command */ 2231 smid = _scsih_scsi_lookup_find_by_scmd(ioc, scmd); 2232 if (!smid) { 2233 scmd->result = DID_RESET << 16; 2234 r = SUCCESS; 2235 goto out; 2236 } 2237 2238 /* for hidden raid components and volumes this is not supported */ 2239 if (sas_device_priv_data->sas_target->flags & 2240 MPT_TARGET_FLAGS_RAID_COMPONENT || 2241 sas_device_priv_data->sas_target->flags & MPT_TARGET_FLAGS_VOLUME) { 2242 scmd->result = DID_RESET << 16; 2243 r = FAILED; 2244 goto out; 2245 } 2246 2247 mpt3sas_halt_firmware(ioc); 2248 2249 handle = sas_device_priv_data->sas_target->handle; 2250 r = mpt3sas_scsih_issue_tm(ioc, handle, scmd->device->channel, 2251 scmd->device->id, scmd->device->lun, 2252 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30, TM_MUTEX_ON); 2253 2254 out: 2255 sdev_printk(KERN_INFO, scmd->device, "task abort: %s scmd(%p)\n", 2256 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd); 2257 return r; 2258 } 2259 2260 /** 2261 * _scsih_dev_reset - eh threads main device reset routine 2262 * @scmd: pointer to scsi command object 2263 * 2264 * Returns SUCCESS if command aborted else FAILED 2265 */ 2266 static int 2267 _scsih_dev_reset(struct scsi_cmnd *scmd) 2268 { 2269 struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host); 2270 struct MPT3SAS_DEVICE *sas_device_priv_data; 2271 struct _sas_device *sas_device; 2272 unsigned long flags; 2273 u16 handle; 2274 int r; 2275 2276 sdev_printk(KERN_INFO, scmd->device, 2277 "attempting device reset! scmd(%p)\n", scmd); 2278 _scsih_tm_display_info(ioc, scmd); 2279 2280 sas_device_priv_data = scmd->device->hostdata; 2281 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) { 2282 sdev_printk(KERN_INFO, scmd->device, 2283 "device been deleted! scmd(%p)\n", scmd); 2284 scmd->result = DID_NO_CONNECT << 16; 2285 scmd->scsi_done(scmd); 2286 r = SUCCESS; 2287 goto out; 2288 } 2289 2290 /* for hidden raid components obtain the volume_handle */ 2291 handle = 0; 2292 if (sas_device_priv_data->sas_target->flags & 2293 MPT_TARGET_FLAGS_RAID_COMPONENT) { 2294 spin_lock_irqsave(&ioc->sas_device_lock, flags); 2295 sas_device = _scsih_sas_device_find_by_handle(ioc, 2296 sas_device_priv_data->sas_target->handle); 2297 if (sas_device) 2298 handle = sas_device->volume_handle; 2299 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 2300 } else 2301 handle = sas_device_priv_data->sas_target->handle; 2302 2303 if (!handle) { 2304 scmd->result = DID_RESET << 16; 2305 r = FAILED; 2306 goto out; 2307 } 2308 2309 r = mpt3sas_scsih_issue_tm(ioc, handle, scmd->device->channel, 2310 scmd->device->id, scmd->device->lun, 2311 MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 30, TM_MUTEX_ON); 2312 2313 out: 2314 sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(%p)\n", 2315 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd); 2316 return r; 2317 } 2318 2319 /** 2320 * _scsih_target_reset - eh threads main target reset routine 2321 * @scmd: pointer to scsi command object 2322 * 2323 * Returns SUCCESS if command aborted else FAILED 2324 */ 2325 static int 2326 _scsih_target_reset(struct scsi_cmnd *scmd) 2327 { 2328 struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host); 2329 struct MPT3SAS_DEVICE *sas_device_priv_data; 2330 struct _sas_device *sas_device; 2331 unsigned long flags; 2332 u16 handle; 2333 int r; 2334 struct scsi_target *starget = scmd->device->sdev_target; 2335 2336 starget_printk(KERN_INFO, starget, "attempting target reset! scmd(%p)\n", 2337 scmd); 2338 _scsih_tm_display_info(ioc, scmd); 2339 2340 sas_device_priv_data = scmd->device->hostdata; 2341 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) { 2342 starget_printk(KERN_INFO, starget, "target been deleted! scmd(%p)\n", 2343 scmd); 2344 scmd->result = DID_NO_CONNECT << 16; 2345 scmd->scsi_done(scmd); 2346 r = SUCCESS; 2347 goto out; 2348 } 2349 2350 /* for hidden raid components obtain the volume_handle */ 2351 handle = 0; 2352 if (sas_device_priv_data->sas_target->flags & 2353 MPT_TARGET_FLAGS_RAID_COMPONENT) { 2354 spin_lock_irqsave(&ioc->sas_device_lock, flags); 2355 sas_device = _scsih_sas_device_find_by_handle(ioc, 2356 sas_device_priv_data->sas_target->handle); 2357 if (sas_device) 2358 handle = sas_device->volume_handle; 2359 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 2360 } else 2361 handle = sas_device_priv_data->sas_target->handle; 2362 2363 if (!handle) { 2364 scmd->result = DID_RESET << 16; 2365 r = FAILED; 2366 goto out; 2367 } 2368 2369 r = mpt3sas_scsih_issue_tm(ioc, handle, scmd->device->channel, 2370 scmd->device->id, 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 2371 30, TM_MUTEX_ON); 2372 2373 out: 2374 starget_printk(KERN_INFO, starget, "target reset: %s scmd(%p)\n", 2375 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd); 2376 return r; 2377 } 2378 2379 2380 /** 2381 * _scsih_host_reset - eh threads main host reset routine 2382 * @scmd: pointer to scsi command object 2383 * 2384 * Returns SUCCESS if command aborted else FAILED 2385 */ 2386 static int 2387 _scsih_host_reset(struct scsi_cmnd *scmd) 2388 { 2389 struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host); 2390 int r, retval; 2391 2392 pr_info(MPT3SAS_FMT "attempting host reset! scmd(%p)\n", 2393 ioc->name, scmd); 2394 scsi_print_command(scmd); 2395 2396 if (ioc->is_driver_loading) { 2397 pr_info(MPT3SAS_FMT "Blocking the host reset\n", 2398 ioc->name); 2399 r = FAILED; 2400 goto out; 2401 } 2402 2403 retval = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP, 2404 FORCE_BIG_HAMMER); 2405 r = (retval < 0) ? FAILED : SUCCESS; 2406 out: 2407 pr_info(MPT3SAS_FMT "host reset: %s scmd(%p)\n", 2408 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd); 2409 2410 return r; 2411 } 2412 2413 /** 2414 * _scsih_fw_event_add - insert and queue up fw_event 2415 * @ioc: per adapter object 2416 * @fw_event: object describing the event 2417 * Context: This function will acquire ioc->fw_event_lock. 2418 * 2419 * This adds the firmware event object into link list, then queues it up to 2420 * be processed from user context. 2421 * 2422 * Return nothing. 2423 */ 2424 static void 2425 _scsih_fw_event_add(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work *fw_event) 2426 { 2427 unsigned long flags; 2428 2429 if (ioc->firmware_event_thread == NULL) 2430 return; 2431 2432 spin_lock_irqsave(&ioc->fw_event_lock, flags); 2433 INIT_LIST_HEAD(&fw_event->list); 2434 list_add_tail(&fw_event->list, &ioc->fw_event_list); 2435 INIT_WORK(&fw_event->work, _firmware_event_work); 2436 queue_work(ioc->firmware_event_thread, &fw_event->work); 2437 spin_unlock_irqrestore(&ioc->fw_event_lock, flags); 2438 } 2439 2440 /** 2441 * _scsih_fw_event_free - delete fw_event 2442 * @ioc: per adapter object 2443 * @fw_event: object describing the event 2444 * Context: This function will acquire ioc->fw_event_lock. 2445 * 2446 * This removes firmware event object from link list, frees associated memory. 2447 * 2448 * Return nothing. 2449 */ 2450 static void 2451 _scsih_fw_event_free(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work 2452 *fw_event) 2453 { 2454 unsigned long flags; 2455 2456 spin_lock_irqsave(&ioc->fw_event_lock, flags); 2457 list_del(&fw_event->list); 2458 kfree(fw_event); 2459 spin_unlock_irqrestore(&ioc->fw_event_lock, flags); 2460 } 2461 2462 2463 /** 2464 * mpt3sas_send_trigger_data_event - send event for processing trigger data 2465 * @ioc: per adapter object 2466 * @event_data: trigger event data 2467 * 2468 * Return nothing. 2469 */ 2470 void 2471 mpt3sas_send_trigger_data_event(struct MPT3SAS_ADAPTER *ioc, 2472 struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data) 2473 { 2474 struct fw_event_work *fw_event; 2475 2476 if (ioc->is_driver_loading) 2477 return; 2478 fw_event = kzalloc(sizeof(*fw_event) + sizeof(*event_data), 2479 GFP_ATOMIC); 2480 if (!fw_event) 2481 return; 2482 fw_event->event = MPT3SAS_PROCESS_TRIGGER_DIAG; 2483 fw_event->ioc = ioc; 2484 memcpy(fw_event->event_data, event_data, sizeof(*event_data)); 2485 _scsih_fw_event_add(ioc, fw_event); 2486 } 2487 2488 /** 2489 * _scsih_error_recovery_delete_devices - remove devices not responding 2490 * @ioc: per adapter object 2491 * 2492 * Return nothing. 2493 */ 2494 static void 2495 _scsih_error_recovery_delete_devices(struct MPT3SAS_ADAPTER *ioc) 2496 { 2497 struct fw_event_work *fw_event; 2498 2499 if (ioc->is_driver_loading) 2500 return; 2501 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC); 2502 if (!fw_event) 2503 return; 2504 fw_event->event = MPT3SAS_REMOVE_UNRESPONDING_DEVICES; 2505 fw_event->ioc = ioc; 2506 _scsih_fw_event_add(ioc, fw_event); 2507 } 2508 2509 /** 2510 * mpt3sas_port_enable_complete - port enable completed (fake event) 2511 * @ioc: per adapter object 2512 * 2513 * Return nothing. 2514 */ 2515 void 2516 mpt3sas_port_enable_complete(struct MPT3SAS_ADAPTER *ioc) 2517 { 2518 struct fw_event_work *fw_event; 2519 2520 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC); 2521 if (!fw_event) 2522 return; 2523 fw_event->event = MPT3SAS_PORT_ENABLE_COMPLETE; 2524 fw_event->ioc = ioc; 2525 _scsih_fw_event_add(ioc, fw_event); 2526 } 2527 2528 /** 2529 * _scsih_fw_event_cleanup_queue - cleanup event queue 2530 * @ioc: per adapter object 2531 * 2532 * Walk the firmware event queue, either killing timers, or waiting 2533 * for outstanding events to complete 2534 * 2535 * Return nothing. 2536 */ 2537 static void 2538 _scsih_fw_event_cleanup_queue(struct MPT3SAS_ADAPTER *ioc) 2539 { 2540 struct fw_event_work *fw_event, *next; 2541 2542 if (list_empty(&ioc->fw_event_list) || 2543 !ioc->firmware_event_thread || in_interrupt()) 2544 return; 2545 2546 list_for_each_entry_safe(fw_event, next, &ioc->fw_event_list, list) { 2547 if (cancel_delayed_work_sync(&fw_event->delayed_work)) { 2548 _scsih_fw_event_free(ioc, fw_event); 2549 continue; 2550 } 2551 } 2552 } 2553 2554 /** 2555 * _scsih_ublock_io_all_device - unblock every device 2556 * @ioc: per adapter object 2557 * 2558 * change the device state from block to running 2559 */ 2560 static void 2561 _scsih_ublock_io_all_device(struct MPT3SAS_ADAPTER *ioc) 2562 { 2563 struct MPT3SAS_DEVICE *sas_device_priv_data; 2564 struct scsi_device *sdev; 2565 2566 shost_for_each_device(sdev, ioc->shost) { 2567 sas_device_priv_data = sdev->hostdata; 2568 if (!sas_device_priv_data) 2569 continue; 2570 if (!sas_device_priv_data->block) 2571 continue; 2572 2573 sas_device_priv_data->block = 0; 2574 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev, 2575 "device_running, handle(0x%04x)\n", 2576 sas_device_priv_data->sas_target->handle)); 2577 scsi_internal_device_unblock(sdev, SDEV_RUNNING); 2578 } 2579 } 2580 2581 2582 /** 2583 * _scsih_ublock_io_device - prepare device to be deleted 2584 * @ioc: per adapter object 2585 * @sas_addr: sas address 2586 * 2587 * unblock then put device in offline state 2588 */ 2589 static void 2590 _scsih_ublock_io_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address) 2591 { 2592 struct MPT3SAS_DEVICE *sas_device_priv_data; 2593 struct scsi_device *sdev; 2594 2595 shost_for_each_device(sdev, ioc->shost) { 2596 sas_device_priv_data = sdev->hostdata; 2597 if (!sas_device_priv_data) 2598 continue; 2599 if (sas_device_priv_data->sas_target->sas_address 2600 != sas_address) 2601 continue; 2602 if (sas_device_priv_data->block) { 2603 sas_device_priv_data->block = 0; 2604 scsi_internal_device_unblock(sdev, SDEV_RUNNING); 2605 } 2606 } 2607 } 2608 2609 /** 2610 * _scsih_block_io_all_device - set the device state to SDEV_BLOCK 2611 * @ioc: per adapter object 2612 * @handle: device handle 2613 * 2614 * During device pull we need to appropiately set the sdev state. 2615 */ 2616 static void 2617 _scsih_block_io_all_device(struct MPT3SAS_ADAPTER *ioc) 2618 { 2619 struct MPT3SAS_DEVICE *sas_device_priv_data; 2620 struct scsi_device *sdev; 2621 2622 shost_for_each_device(sdev, ioc->shost) { 2623 sas_device_priv_data = sdev->hostdata; 2624 if (!sas_device_priv_data) 2625 continue; 2626 if (sas_device_priv_data->block) 2627 continue; 2628 sas_device_priv_data->block = 1; 2629 scsi_internal_device_block(sdev); 2630 sdev_printk(KERN_INFO, sdev, "device_blocked, handle(0x%04x)\n", 2631 sas_device_priv_data->sas_target->handle); 2632 } 2633 } 2634 2635 /** 2636 * _scsih_block_io_device - set the device state to SDEV_BLOCK 2637 * @ioc: per adapter object 2638 * @handle: device handle 2639 * 2640 * During device pull we need to appropiately set the sdev state. 2641 */ 2642 static void 2643 _scsih_block_io_device(struct MPT3SAS_ADAPTER *ioc, u16 handle) 2644 { 2645 struct MPT3SAS_DEVICE *sas_device_priv_data; 2646 struct scsi_device *sdev; 2647 2648 shost_for_each_device(sdev, ioc->shost) { 2649 sas_device_priv_data = sdev->hostdata; 2650 if (!sas_device_priv_data) 2651 continue; 2652 if (sas_device_priv_data->sas_target->handle != handle) 2653 continue; 2654 if (sas_device_priv_data->block) 2655 continue; 2656 sas_device_priv_data->block = 1; 2657 scsi_internal_device_block(sdev); 2658 sdev_printk(KERN_INFO, sdev, 2659 "device_blocked, handle(0x%04x)\n", handle); 2660 } 2661 } 2662 2663 /** 2664 * _scsih_block_io_to_children_attached_to_ex 2665 * @ioc: per adapter object 2666 * @sas_expander: the sas_device object 2667 * 2668 * This routine set sdev state to SDEV_BLOCK for all devices 2669 * attached to this expander. This function called when expander is 2670 * pulled. 2671 */ 2672 static void 2673 _scsih_block_io_to_children_attached_to_ex(struct MPT3SAS_ADAPTER *ioc, 2674 struct _sas_node *sas_expander) 2675 { 2676 struct _sas_port *mpt3sas_port; 2677 struct _sas_device *sas_device; 2678 struct _sas_node *expander_sibling; 2679 unsigned long flags; 2680 2681 if (!sas_expander) 2682 return; 2683 2684 list_for_each_entry(mpt3sas_port, 2685 &sas_expander->sas_port_list, port_list) { 2686 if (mpt3sas_port->remote_identify.device_type == 2687 SAS_END_DEVICE) { 2688 spin_lock_irqsave(&ioc->sas_device_lock, flags); 2689 sas_device = 2690 mpt3sas_scsih_sas_device_find_by_sas_address(ioc, 2691 mpt3sas_port->remote_identify.sas_address); 2692 if (sas_device) 2693 set_bit(sas_device->handle, 2694 ioc->blocking_handles); 2695 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 2696 } 2697 } 2698 2699 list_for_each_entry(mpt3sas_port, 2700 &sas_expander->sas_port_list, port_list) { 2701 2702 if (mpt3sas_port->remote_identify.device_type == 2703 SAS_EDGE_EXPANDER_DEVICE || 2704 mpt3sas_port->remote_identify.device_type == 2705 SAS_FANOUT_EXPANDER_DEVICE) { 2706 expander_sibling = 2707 mpt3sas_scsih_expander_find_by_sas_address( 2708 ioc, mpt3sas_port->remote_identify.sas_address); 2709 _scsih_block_io_to_children_attached_to_ex(ioc, 2710 expander_sibling); 2711 } 2712 } 2713 } 2714 2715 /** 2716 * _scsih_block_io_to_children_attached_directly 2717 * @ioc: per adapter object 2718 * @event_data: topology change event data 2719 * 2720 * This routine set sdev state to SDEV_BLOCK for all devices 2721 * direct attached during device pull. 2722 */ 2723 static void 2724 _scsih_block_io_to_children_attached_directly(struct MPT3SAS_ADAPTER *ioc, 2725 Mpi2EventDataSasTopologyChangeList_t *event_data) 2726 { 2727 int i; 2728 u16 handle; 2729 u16 reason_code; 2730 2731 for (i = 0; i < event_data->NumEntries; i++) { 2732 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle); 2733 if (!handle) 2734 continue; 2735 reason_code = event_data->PHY[i].PhyStatus & 2736 MPI2_EVENT_SAS_TOPO_RC_MASK; 2737 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING) 2738 _scsih_block_io_device(ioc, handle); 2739 } 2740 } 2741 2742 /** 2743 * _scsih_tm_tr_send - send task management request 2744 * @ioc: per adapter object 2745 * @handle: device handle 2746 * Context: interrupt time. 2747 * 2748 * This code is to initiate the device removal handshake protocol 2749 * with controller firmware. This function will issue target reset 2750 * using high priority request queue. It will send a sas iounit 2751 * control request (MPI2_SAS_OP_REMOVE_DEVICE) from this completion. 2752 * 2753 * This is designed to send muliple task management request at the same 2754 * time to the fifo. If the fifo is full, we will append the request, 2755 * and process it in a future completion. 2756 */ 2757 static void 2758 _scsih_tm_tr_send(struct MPT3SAS_ADAPTER *ioc, u16 handle) 2759 { 2760 Mpi2SCSITaskManagementRequest_t *mpi_request; 2761 u16 smid; 2762 struct _sas_device *sas_device; 2763 struct MPT3SAS_TARGET *sas_target_priv_data = NULL; 2764 u64 sas_address = 0; 2765 unsigned long flags; 2766 struct _tr_list *delayed_tr; 2767 u32 ioc_state; 2768 2769 if (ioc->remove_host) { 2770 dewtprintk(ioc, pr_info(MPT3SAS_FMT 2771 "%s: host has been removed: handle(0x%04x)\n", 2772 __func__, ioc->name, handle)); 2773 return; 2774 } else if (ioc->pci_error_recovery) { 2775 dewtprintk(ioc, pr_info(MPT3SAS_FMT 2776 "%s: host in pci error recovery: handle(0x%04x)\n", 2777 __func__, ioc->name, 2778 handle)); 2779 return; 2780 } 2781 ioc_state = mpt3sas_base_get_iocstate(ioc, 1); 2782 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { 2783 dewtprintk(ioc, pr_info(MPT3SAS_FMT 2784 "%s: host is not operational: handle(0x%04x)\n", 2785 __func__, ioc->name, 2786 handle)); 2787 return; 2788 } 2789 2790 /* if PD, then return */ 2791 if (test_bit(handle, ioc->pd_handles)) 2792 return; 2793 2794 spin_lock_irqsave(&ioc->sas_device_lock, flags); 2795 sas_device = _scsih_sas_device_find_by_handle(ioc, handle); 2796 if (sas_device && sas_device->starget && 2797 sas_device->starget->hostdata) { 2798 sas_target_priv_data = sas_device->starget->hostdata; 2799 sas_target_priv_data->deleted = 1; 2800 sas_address = sas_device->sas_address; 2801 } 2802 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 2803 2804 if (sas_target_priv_data) { 2805 dewtprintk(ioc, pr_info(MPT3SAS_FMT 2806 "setting delete flag: handle(0x%04x), sas_addr(0x%016llx)\n", 2807 ioc->name, handle, 2808 (unsigned long long)sas_address)); 2809 _scsih_ublock_io_device(ioc, sas_address); 2810 sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE; 2811 } 2812 2813 smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_tr_cb_idx); 2814 if (!smid) { 2815 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC); 2816 if (!delayed_tr) 2817 return; 2818 INIT_LIST_HEAD(&delayed_tr->list); 2819 delayed_tr->handle = handle; 2820 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list); 2821 dewtprintk(ioc, pr_info(MPT3SAS_FMT 2822 "DELAYED:tr:handle(0x%04x), (open)\n", 2823 ioc->name, handle)); 2824 return; 2825 } 2826 2827 dewtprintk(ioc, pr_info(MPT3SAS_FMT 2828 "tr_send:handle(0x%04x), (open), smid(%d), cb(%d)\n", 2829 ioc->name, handle, smid, 2830 ioc->tm_tr_cb_idx)); 2831 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 2832 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t)); 2833 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT; 2834 mpi_request->DevHandle = cpu_to_le16(handle); 2835 mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET; 2836 mpt3sas_base_put_smid_hi_priority(ioc, smid); 2837 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_DEVICE_REMOVAL); 2838 } 2839 2840 /** 2841 * _scsih_tm_tr_complete - 2842 * @ioc: per adapter object 2843 * @smid: system request message index 2844 * @msix_index: MSIX table index supplied by the OS 2845 * @reply: reply message frame(lower 32bit addr) 2846 * Context: interrupt time. 2847 * 2848 * This is the target reset completion routine. 2849 * This code is part of the code to initiate the device removal 2850 * handshake protocol with controller firmware. 2851 * It will send a sas iounit control request (MPI2_SAS_OP_REMOVE_DEVICE) 2852 * 2853 * Return 1 meaning mf should be freed from _base_interrupt 2854 * 0 means the mf is freed from this function. 2855 */ 2856 static u8 2857 _scsih_tm_tr_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, 2858 u32 reply) 2859 { 2860 u16 handle; 2861 Mpi2SCSITaskManagementRequest_t *mpi_request_tm; 2862 Mpi2SCSITaskManagementReply_t *mpi_reply = 2863 mpt3sas_base_get_reply_virt_addr(ioc, reply); 2864 Mpi2SasIoUnitControlRequest_t *mpi_request; 2865 u16 smid_sas_ctrl; 2866 u32 ioc_state; 2867 2868 if (ioc->remove_host) { 2869 dewtprintk(ioc, pr_info(MPT3SAS_FMT 2870 "%s: host has been removed\n", __func__, ioc->name)); 2871 return 1; 2872 } else if (ioc->pci_error_recovery) { 2873 dewtprintk(ioc, pr_info(MPT3SAS_FMT 2874 "%s: host in pci error recovery\n", __func__, 2875 ioc->name)); 2876 return 1; 2877 } 2878 ioc_state = mpt3sas_base_get_iocstate(ioc, 1); 2879 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { 2880 dewtprintk(ioc, pr_info(MPT3SAS_FMT 2881 "%s: host is not operational\n", __func__, ioc->name)); 2882 return 1; 2883 } 2884 if (unlikely(!mpi_reply)) { 2885 pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n", 2886 ioc->name, __FILE__, __LINE__, __func__); 2887 return 1; 2888 } 2889 mpi_request_tm = mpt3sas_base_get_msg_frame(ioc, smid); 2890 handle = le16_to_cpu(mpi_request_tm->DevHandle); 2891 if (handle != le16_to_cpu(mpi_reply->DevHandle)) { 2892 dewtprintk(ioc, pr_err(MPT3SAS_FMT 2893 "spurious interrupt: handle(0x%04x:0x%04x), smid(%d)!!!\n", 2894 ioc->name, handle, 2895 le16_to_cpu(mpi_reply->DevHandle), smid)); 2896 return 0; 2897 } 2898 2899 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT); 2900 dewtprintk(ioc, pr_info(MPT3SAS_FMT 2901 "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), " 2902 "loginfo(0x%08x), completed(%d)\n", ioc->name, 2903 handle, smid, le16_to_cpu(mpi_reply->IOCStatus), 2904 le32_to_cpu(mpi_reply->IOCLogInfo), 2905 le32_to_cpu(mpi_reply->TerminationCount))); 2906 2907 smid_sas_ctrl = mpt3sas_base_get_smid(ioc, ioc->tm_sas_control_cb_idx); 2908 if (!smid_sas_ctrl) { 2909 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n", 2910 ioc->name, __func__); 2911 return 1; 2912 } 2913 2914 dewtprintk(ioc, pr_info(MPT3SAS_FMT 2915 "sc_send:handle(0x%04x), (open), smid(%d), cb(%d)\n", 2916 ioc->name, handle, smid_sas_ctrl, 2917 ioc->tm_sas_control_cb_idx)); 2918 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid_sas_ctrl); 2919 memset(mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t)); 2920 mpi_request->Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL; 2921 mpi_request->Operation = MPI2_SAS_OP_REMOVE_DEVICE; 2922 mpi_request->DevHandle = mpi_request_tm->DevHandle; 2923 mpt3sas_base_put_smid_default(ioc, smid_sas_ctrl); 2924 2925 return _scsih_check_for_pending_tm(ioc, smid); 2926 } 2927 2928 2929 /** 2930 * _scsih_sas_control_complete - completion routine 2931 * @ioc: per adapter object 2932 * @smid: system request message index 2933 * @msix_index: MSIX table index supplied by the OS 2934 * @reply: reply message frame(lower 32bit addr) 2935 * Context: interrupt time. 2936 * 2937 * This is the sas iounit control completion routine. 2938 * This code is part of the code to initiate the device removal 2939 * handshake protocol with controller firmware. 2940 * 2941 * Return 1 meaning mf should be freed from _base_interrupt 2942 * 0 means the mf is freed from this function. 2943 */ 2944 static u8 2945 _scsih_sas_control_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid, 2946 u8 msix_index, u32 reply) 2947 { 2948 Mpi2SasIoUnitControlReply_t *mpi_reply = 2949 mpt3sas_base_get_reply_virt_addr(ioc, reply); 2950 2951 if (likely(mpi_reply)) { 2952 dewtprintk(ioc, pr_info(MPT3SAS_FMT 2953 "sc_complete:handle(0x%04x), (open) " 2954 "smid(%d), ioc_status(0x%04x), loginfo(0x%08x)\n", 2955 ioc->name, le16_to_cpu(mpi_reply->DevHandle), smid, 2956 le16_to_cpu(mpi_reply->IOCStatus), 2957 le32_to_cpu(mpi_reply->IOCLogInfo))); 2958 } else { 2959 pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n", 2960 ioc->name, __FILE__, __LINE__, __func__); 2961 } 2962 return 1; 2963 } 2964 2965 /** 2966 * _scsih_tm_tr_volume_send - send target reset request for volumes 2967 * @ioc: per adapter object 2968 * @handle: device handle 2969 * Context: interrupt time. 2970 * 2971 * This is designed to send muliple task management request at the same 2972 * time to the fifo. If the fifo is full, we will append the request, 2973 * and process it in a future completion. 2974 */ 2975 static void 2976 _scsih_tm_tr_volume_send(struct MPT3SAS_ADAPTER *ioc, u16 handle) 2977 { 2978 Mpi2SCSITaskManagementRequest_t *mpi_request; 2979 u16 smid; 2980 struct _tr_list *delayed_tr; 2981 2982 if (ioc->shost_recovery || ioc->remove_host || 2983 ioc->pci_error_recovery) { 2984 dewtprintk(ioc, pr_info(MPT3SAS_FMT 2985 "%s: host reset in progress!\n", 2986 __func__, ioc->name)); 2987 return; 2988 } 2989 2990 smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_tr_volume_cb_idx); 2991 if (!smid) { 2992 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC); 2993 if (!delayed_tr) 2994 return; 2995 INIT_LIST_HEAD(&delayed_tr->list); 2996 delayed_tr->handle = handle; 2997 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_volume_list); 2998 dewtprintk(ioc, pr_info(MPT3SAS_FMT 2999 "DELAYED:tr:handle(0x%04x), (open)\n", 3000 ioc->name, handle)); 3001 return; 3002 } 3003 3004 dewtprintk(ioc, pr_info(MPT3SAS_FMT 3005 "tr_send:handle(0x%04x), (open), smid(%d), cb(%d)\n", 3006 ioc->name, handle, smid, 3007 ioc->tm_tr_volume_cb_idx)); 3008 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 3009 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t)); 3010 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT; 3011 mpi_request->DevHandle = cpu_to_le16(handle); 3012 mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET; 3013 mpt3sas_base_put_smid_hi_priority(ioc, smid); 3014 } 3015 3016 /** 3017 * _scsih_tm_volume_tr_complete - target reset completion 3018 * @ioc: per adapter object 3019 * @smid: system request message index 3020 * @msix_index: MSIX table index supplied by the OS 3021 * @reply: reply message frame(lower 32bit addr) 3022 * Context: interrupt time. 3023 * 3024 * Return 1 meaning mf should be freed from _base_interrupt 3025 * 0 means the mf is freed from this function. 3026 */ 3027 static u8 3028 _scsih_tm_volume_tr_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid, 3029 u8 msix_index, u32 reply) 3030 { 3031 u16 handle; 3032 Mpi2SCSITaskManagementRequest_t *mpi_request_tm; 3033 Mpi2SCSITaskManagementReply_t *mpi_reply = 3034 mpt3sas_base_get_reply_virt_addr(ioc, reply); 3035 3036 if (ioc->shost_recovery || ioc->remove_host || 3037 ioc->pci_error_recovery) { 3038 dewtprintk(ioc, pr_info(MPT3SAS_FMT 3039 "%s: host reset in progress!\n", 3040 __func__, ioc->name)); 3041 return 1; 3042 } 3043 if (unlikely(!mpi_reply)) { 3044 pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n", 3045 ioc->name, __FILE__, __LINE__, __func__); 3046 return 1; 3047 } 3048 3049 mpi_request_tm = mpt3sas_base_get_msg_frame(ioc, smid); 3050 handle = le16_to_cpu(mpi_request_tm->DevHandle); 3051 if (handle != le16_to_cpu(mpi_reply->DevHandle)) { 3052 dewtprintk(ioc, pr_err(MPT3SAS_FMT 3053 "spurious interrupt: handle(0x%04x:0x%04x), smid(%d)!!!\n", 3054 ioc->name, handle, 3055 le16_to_cpu(mpi_reply->DevHandle), smid)); 3056 return 0; 3057 } 3058 3059 dewtprintk(ioc, pr_info(MPT3SAS_FMT 3060 "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), " 3061 "loginfo(0x%08x), completed(%d)\n", ioc->name, 3062 handle, smid, le16_to_cpu(mpi_reply->IOCStatus), 3063 le32_to_cpu(mpi_reply->IOCLogInfo), 3064 le32_to_cpu(mpi_reply->TerminationCount))); 3065 3066 return _scsih_check_for_pending_tm(ioc, smid); 3067 } 3068 3069 3070 /** 3071 * _scsih_check_for_pending_tm - check for pending task management 3072 * @ioc: per adapter object 3073 * @smid: system request message index 3074 * 3075 * This will check delayed target reset list, and feed the 3076 * next reqeust. 3077 * 3078 * Return 1 meaning mf should be freed from _base_interrupt 3079 * 0 means the mf is freed from this function. 3080 */ 3081 static u8 3082 _scsih_check_for_pending_tm(struct MPT3SAS_ADAPTER *ioc, u16 smid) 3083 { 3084 struct _tr_list *delayed_tr; 3085 3086 if (!list_empty(&ioc->delayed_tr_volume_list)) { 3087 delayed_tr = list_entry(ioc->delayed_tr_volume_list.next, 3088 struct _tr_list, list); 3089 mpt3sas_base_free_smid(ioc, smid); 3090 _scsih_tm_tr_volume_send(ioc, delayed_tr->handle); 3091 list_del(&delayed_tr->list); 3092 kfree(delayed_tr); 3093 return 0; 3094 } 3095 3096 if (!list_empty(&ioc->delayed_tr_list)) { 3097 delayed_tr = list_entry(ioc->delayed_tr_list.next, 3098 struct _tr_list, list); 3099 mpt3sas_base_free_smid(ioc, smid); 3100 _scsih_tm_tr_send(ioc, delayed_tr->handle); 3101 list_del(&delayed_tr->list); 3102 kfree(delayed_tr); 3103 return 0; 3104 } 3105 3106 return 1; 3107 } 3108 3109 /** 3110 * _scsih_check_topo_delete_events - sanity check on topo events 3111 * @ioc: per adapter object 3112 * @event_data: the event data payload 3113 * 3114 * This routine added to better handle cable breaker. 3115 * 3116 * This handles the case where driver receives multiple expander 3117 * add and delete events in a single shot. When there is a delete event 3118 * the routine will void any pending add events waiting in the event queue. 3119 * 3120 * Return nothing. 3121 */ 3122 static void 3123 _scsih_check_topo_delete_events(struct MPT3SAS_ADAPTER *ioc, 3124 Mpi2EventDataSasTopologyChangeList_t *event_data) 3125 { 3126 struct fw_event_work *fw_event; 3127 Mpi2EventDataSasTopologyChangeList_t *local_event_data; 3128 u16 expander_handle; 3129 struct _sas_node *sas_expander; 3130 unsigned long flags; 3131 int i, reason_code; 3132 u16 handle; 3133 3134 for (i = 0 ; i < event_data->NumEntries; i++) { 3135 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle); 3136 if (!handle) 3137 continue; 3138 reason_code = event_data->PHY[i].PhyStatus & 3139 MPI2_EVENT_SAS_TOPO_RC_MASK; 3140 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING) 3141 _scsih_tm_tr_send(ioc, handle); 3142 } 3143 3144 expander_handle = le16_to_cpu(event_data->ExpanderDevHandle); 3145 if (expander_handle < ioc->sas_hba.num_phys) { 3146 _scsih_block_io_to_children_attached_directly(ioc, event_data); 3147 return; 3148 } 3149 if (event_data->ExpStatus == 3150 MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING) { 3151 /* put expander attached devices into blocking state */ 3152 spin_lock_irqsave(&ioc->sas_node_lock, flags); 3153 sas_expander = mpt3sas_scsih_expander_find_by_handle(ioc, 3154 expander_handle); 3155 _scsih_block_io_to_children_attached_to_ex(ioc, sas_expander); 3156 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 3157 do { 3158 handle = find_first_bit(ioc->blocking_handles, 3159 ioc->facts.MaxDevHandle); 3160 if (handle < ioc->facts.MaxDevHandle) 3161 _scsih_block_io_device(ioc, handle); 3162 } while (test_and_clear_bit(handle, ioc->blocking_handles)); 3163 } else if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_RESPONDING) 3164 _scsih_block_io_to_children_attached_directly(ioc, event_data); 3165 3166 if (event_data->ExpStatus != MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING) 3167 return; 3168 3169 /* mark ignore flag for pending events */ 3170 spin_lock_irqsave(&ioc->fw_event_lock, flags); 3171 list_for_each_entry(fw_event, &ioc->fw_event_list, list) { 3172 if (fw_event->event != MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST || 3173 fw_event->ignore) 3174 continue; 3175 local_event_data = (Mpi2EventDataSasTopologyChangeList_t *) 3176 fw_event->event_data; 3177 if (local_event_data->ExpStatus == 3178 MPI2_EVENT_SAS_TOPO_ES_ADDED || 3179 local_event_data->ExpStatus == 3180 MPI2_EVENT_SAS_TOPO_ES_RESPONDING) { 3181 if (le16_to_cpu(local_event_data->ExpanderDevHandle) == 3182 expander_handle) { 3183 dewtprintk(ioc, pr_info(MPT3SAS_FMT 3184 "setting ignoring flag\n", ioc->name)); 3185 fw_event->ignore = 1; 3186 } 3187 } 3188 } 3189 spin_unlock_irqrestore(&ioc->fw_event_lock, flags); 3190 } 3191 3192 /** 3193 * _scsih_set_volume_delete_flag - setting volume delete flag 3194 * @ioc: per adapter object 3195 * @handle: device handle 3196 * 3197 * This returns nothing. 3198 */ 3199 static void 3200 _scsih_set_volume_delete_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle) 3201 { 3202 struct _raid_device *raid_device; 3203 struct MPT3SAS_TARGET *sas_target_priv_data; 3204 unsigned long flags; 3205 3206 spin_lock_irqsave(&ioc->raid_device_lock, flags); 3207 raid_device = _scsih_raid_device_find_by_handle(ioc, handle); 3208 if (raid_device && raid_device->starget && 3209 raid_device->starget->hostdata) { 3210 sas_target_priv_data = 3211 raid_device->starget->hostdata; 3212 sas_target_priv_data->deleted = 1; 3213 dewtprintk(ioc, pr_info(MPT3SAS_FMT 3214 "setting delete flag: handle(0x%04x), " 3215 "wwid(0x%016llx)\n", ioc->name, handle, 3216 (unsigned long long) raid_device->wwid)); 3217 } 3218 spin_unlock_irqrestore(&ioc->raid_device_lock, flags); 3219 } 3220 3221 /** 3222 * _scsih_set_volume_handle_for_tr - set handle for target reset to volume 3223 * @handle: input handle 3224 * @a: handle for volume a 3225 * @b: handle for volume b 3226 * 3227 * IR firmware only supports two raid volumes. The purpose of this 3228 * routine is to set the volume handle in either a or b. When the given 3229 * input handle is non-zero, or when a and b have not been set before. 3230 */ 3231 static void 3232 _scsih_set_volume_handle_for_tr(u16 handle, u16 *a, u16 *b) 3233 { 3234 if (!handle || handle == *a || handle == *b) 3235 return; 3236 if (!*a) 3237 *a = handle; 3238 else if (!*b) 3239 *b = handle; 3240 } 3241 3242 /** 3243 * _scsih_check_ir_config_unhide_events - check for UNHIDE events 3244 * @ioc: per adapter object 3245 * @event_data: the event data payload 3246 * Context: interrupt time. 3247 * 3248 * This routine will send target reset to volume, followed by target 3249 * resets to the PDs. This is called when a PD has been removed, or 3250 * volume has been deleted or removed. When the target reset is sent 3251 * to volume, the PD target resets need to be queued to start upon 3252 * completion of the volume target reset. 3253 * 3254 * Return nothing. 3255 */ 3256 static void 3257 _scsih_check_ir_config_unhide_events(struct MPT3SAS_ADAPTER *ioc, 3258 Mpi2EventDataIrConfigChangeList_t *event_data) 3259 { 3260 Mpi2EventIrConfigElement_t *element; 3261 int i; 3262 u16 handle, volume_handle, a, b; 3263 struct _tr_list *delayed_tr; 3264 3265 a = 0; 3266 b = 0; 3267 3268 /* Volume Resets for Deleted or Removed */ 3269 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0]; 3270 for (i = 0; i < event_data->NumElements; i++, element++) { 3271 if (le32_to_cpu(event_data->Flags) & 3272 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) 3273 continue; 3274 if (element->ReasonCode == 3275 MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED || 3276 element->ReasonCode == 3277 MPI2_EVENT_IR_CHANGE_RC_REMOVED) { 3278 volume_handle = le16_to_cpu(element->VolDevHandle); 3279 _scsih_set_volume_delete_flag(ioc, volume_handle); 3280 _scsih_set_volume_handle_for_tr(volume_handle, &a, &b); 3281 } 3282 } 3283 3284 /* Volume Resets for UNHIDE events */ 3285 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0]; 3286 for (i = 0; i < event_data->NumElements; i++, element++) { 3287 if (le32_to_cpu(event_data->Flags) & 3288 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) 3289 continue; 3290 if (element->ReasonCode == MPI2_EVENT_IR_CHANGE_RC_UNHIDE) { 3291 volume_handle = le16_to_cpu(element->VolDevHandle); 3292 _scsih_set_volume_handle_for_tr(volume_handle, &a, &b); 3293 } 3294 } 3295 3296 if (a) 3297 _scsih_tm_tr_volume_send(ioc, a); 3298 if (b) 3299 _scsih_tm_tr_volume_send(ioc, b); 3300 3301 /* PD target resets */ 3302 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0]; 3303 for (i = 0; i < event_data->NumElements; i++, element++) { 3304 if (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_UNHIDE) 3305 continue; 3306 handle = le16_to_cpu(element->PhysDiskDevHandle); 3307 volume_handle = le16_to_cpu(element->VolDevHandle); 3308 clear_bit(handle, ioc->pd_handles); 3309 if (!volume_handle) 3310 _scsih_tm_tr_send(ioc, handle); 3311 else if (volume_handle == a || volume_handle == b) { 3312 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC); 3313 BUG_ON(!delayed_tr); 3314 INIT_LIST_HEAD(&delayed_tr->list); 3315 delayed_tr->handle = handle; 3316 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list); 3317 dewtprintk(ioc, pr_info(MPT3SAS_FMT 3318 "DELAYED:tr:handle(0x%04x), (open)\n", ioc->name, 3319 handle)); 3320 } else 3321 _scsih_tm_tr_send(ioc, handle); 3322 } 3323 } 3324 3325 3326 /** 3327 * _scsih_check_volume_delete_events - set delete flag for volumes 3328 * @ioc: per adapter object 3329 * @event_data: the event data payload 3330 * Context: interrupt time. 3331 * 3332 * This will handle the case when the cable connected to entire volume is 3333 * pulled. We will take care of setting the deleted flag so normal IO will 3334 * not be sent. 3335 * 3336 * Return nothing. 3337 */ 3338 static void 3339 _scsih_check_volume_delete_events(struct MPT3SAS_ADAPTER *ioc, 3340 Mpi2EventDataIrVolume_t *event_data) 3341 { 3342 u32 state; 3343 3344 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED) 3345 return; 3346 state = le32_to_cpu(event_data->NewValue); 3347 if (state == MPI2_RAID_VOL_STATE_MISSING || state == 3348 MPI2_RAID_VOL_STATE_FAILED) 3349 _scsih_set_volume_delete_flag(ioc, 3350 le16_to_cpu(event_data->VolDevHandle)); 3351 } 3352 3353 /** 3354 * _scsih_temp_threshold_events - display temperature threshold exceeded events 3355 * @ioc: per adapter object 3356 * @event_data: the temp threshold event data 3357 * Context: interrupt time. 3358 * 3359 * Return nothing. 3360 */ 3361 static void 3362 _scsih_temp_threshold_events(struct MPT3SAS_ADAPTER *ioc, 3363 Mpi2EventDataTemperature_t *event_data) 3364 { 3365 if (ioc->temp_sensors_count >= event_data->SensorNum) { 3366 pr_err(MPT3SAS_FMT "Temperature Threshold flags %s%s%s%s" 3367 " exceeded for Sensor: %d !!!\n", ioc->name, 3368 ((le16_to_cpu(event_data->Status) & 0x1) == 1) ? "0 " : " ", 3369 ((le16_to_cpu(event_data->Status) & 0x2) == 2) ? "1 " : " ", 3370 ((le16_to_cpu(event_data->Status) & 0x4) == 4) ? "2 " : " ", 3371 ((le16_to_cpu(event_data->Status) & 0x8) == 8) ? "3 " : " ", 3372 event_data->SensorNum); 3373 pr_err(MPT3SAS_FMT "Current Temp In Celsius: %d\n", 3374 ioc->name, event_data->CurrentTemperature); 3375 } 3376 } 3377 3378 /** 3379 * _scsih_flush_running_cmds - completing outstanding commands. 3380 * @ioc: per adapter object 3381 * 3382 * The flushing out of all pending scmd commands following host reset, 3383 * where all IO is dropped to the floor. 3384 * 3385 * Return nothing. 3386 */ 3387 static void 3388 _scsih_flush_running_cmds(struct MPT3SAS_ADAPTER *ioc) 3389 { 3390 struct scsi_cmnd *scmd; 3391 u16 smid; 3392 u16 count = 0; 3393 3394 for (smid = 1; smid <= ioc->scsiio_depth; smid++) { 3395 scmd = _scsih_scsi_lookup_get_clear(ioc, smid); 3396 if (!scmd) 3397 continue; 3398 count++; 3399 mpt3sas_base_free_smid(ioc, smid); 3400 scsi_dma_unmap(scmd); 3401 if (ioc->pci_error_recovery) 3402 scmd->result = DID_NO_CONNECT << 16; 3403 else 3404 scmd->result = DID_RESET << 16; 3405 scmd->scsi_done(scmd); 3406 } 3407 dtmprintk(ioc, pr_info(MPT3SAS_FMT "completing %d cmds\n", 3408 ioc->name, count)); 3409 } 3410 3411 /** 3412 * _scsih_setup_eedp - setup MPI request for EEDP transfer 3413 * @ioc: per adapter object 3414 * @scmd: pointer to scsi command object 3415 * @mpi_request: pointer to the SCSI_IO reqest message frame 3416 * 3417 * Supporting protection 1 and 3. 3418 * 3419 * Returns nothing 3420 */ 3421 static void 3422 _scsih_setup_eedp(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd, 3423 Mpi2SCSIIORequest_t *mpi_request) 3424 { 3425 u16 eedp_flags; 3426 unsigned char prot_op = scsi_get_prot_op(scmd); 3427 unsigned char prot_type = scsi_get_prot_type(scmd); 3428 Mpi25SCSIIORequest_t *mpi_request_3v = 3429 (Mpi25SCSIIORequest_t *)mpi_request; 3430 3431 if (prot_type == SCSI_PROT_DIF_TYPE0 || prot_op == SCSI_PROT_NORMAL) 3432 return; 3433 3434 if (prot_op == SCSI_PROT_READ_STRIP) 3435 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP; 3436 else if (prot_op == SCSI_PROT_WRITE_INSERT) 3437 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_INSERT_OP; 3438 else 3439 return; 3440 3441 switch (prot_type) { 3442 case SCSI_PROT_DIF_TYPE1: 3443 case SCSI_PROT_DIF_TYPE2: 3444 3445 /* 3446 * enable ref/guard checking 3447 * auto increment ref tag 3448 */ 3449 eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG | 3450 MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG | 3451 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD; 3452 mpi_request->CDB.EEDP32.PrimaryReferenceTag = 3453 cpu_to_be32(scsi_get_lba(scmd)); 3454 break; 3455 3456 case SCSI_PROT_DIF_TYPE3: 3457 3458 /* 3459 * enable guard checking 3460 */ 3461 eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD; 3462 3463 break; 3464 } 3465 3466 mpi_request_3v->EEDPBlockSize = 3467 cpu_to_le16(scmd->device->sector_size); 3468 mpi_request->EEDPFlags = cpu_to_le16(eedp_flags); 3469 } 3470 3471 /** 3472 * _scsih_eedp_error_handling - return sense code for EEDP errors 3473 * @scmd: pointer to scsi command object 3474 * @ioc_status: ioc status 3475 * 3476 * Returns nothing 3477 */ 3478 static void 3479 _scsih_eedp_error_handling(struct scsi_cmnd *scmd, u16 ioc_status) 3480 { 3481 u8 ascq; 3482 3483 switch (ioc_status) { 3484 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR: 3485 ascq = 0x01; 3486 break; 3487 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR: 3488 ascq = 0x02; 3489 break; 3490 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR: 3491 ascq = 0x03; 3492 break; 3493 default: 3494 ascq = 0x00; 3495 break; 3496 } 3497 scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, 0x10, 3498 ascq); 3499 scmd->result = DRIVER_SENSE << 24 | (DID_ABORT << 16) | 3500 SAM_STAT_CHECK_CONDITION; 3501 } 3502 3503 3504 /** 3505 * _scsih_qcmd - main scsi request entry point 3506 * @scmd: pointer to scsi command object 3507 * @done: function pointer to be invoked on completion 3508 * 3509 * The callback index is set inside `ioc->scsi_io_cb_idx`. 3510 * 3511 * Returns 0 on success. If there's a failure, return either: 3512 * SCSI_MLQUEUE_DEVICE_BUSY if the device queue is full, or 3513 * SCSI_MLQUEUE_HOST_BUSY if the entire host queue is full 3514 */ 3515 static int 3516 _scsih_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *scmd) 3517 { 3518 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 3519 struct MPT3SAS_DEVICE *sas_device_priv_data; 3520 struct MPT3SAS_TARGET *sas_target_priv_data; 3521 Mpi2SCSIIORequest_t *mpi_request; 3522 u32 mpi_control; 3523 u16 smid; 3524 u16 handle; 3525 3526 #ifdef CONFIG_SCSI_MPT3SAS_LOGGING 3527 if (ioc->logging_level & MPT_DEBUG_SCSI) 3528 scsi_print_command(scmd); 3529 #endif 3530 3531 sas_device_priv_data = scmd->device->hostdata; 3532 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) { 3533 scmd->result = DID_NO_CONNECT << 16; 3534 scmd->scsi_done(scmd); 3535 return 0; 3536 } 3537 3538 if (ioc->pci_error_recovery || ioc->remove_host) { 3539 scmd->result = DID_NO_CONNECT << 16; 3540 scmd->scsi_done(scmd); 3541 return 0; 3542 } 3543 3544 sas_target_priv_data = sas_device_priv_data->sas_target; 3545 3546 /* invalid device handle */ 3547 handle = sas_target_priv_data->handle; 3548 if (handle == MPT3SAS_INVALID_DEVICE_HANDLE) { 3549 scmd->result = DID_NO_CONNECT << 16; 3550 scmd->scsi_done(scmd); 3551 return 0; 3552 } 3553 3554 3555 /* host recovery or link resets sent via IOCTLs */ 3556 if (ioc->shost_recovery || ioc->ioc_link_reset_in_progress) 3557 return SCSI_MLQUEUE_HOST_BUSY; 3558 3559 /* device has been deleted */ 3560 else if (sas_target_priv_data->deleted) { 3561 scmd->result = DID_NO_CONNECT << 16; 3562 scmd->scsi_done(scmd); 3563 return 0; 3564 /* device busy with task managment */ 3565 } else if (sas_target_priv_data->tm_busy || 3566 sas_device_priv_data->block) 3567 return SCSI_MLQUEUE_DEVICE_BUSY; 3568 3569 if (scmd->sc_data_direction == DMA_FROM_DEVICE) 3570 mpi_control = MPI2_SCSIIO_CONTROL_READ; 3571 else if (scmd->sc_data_direction == DMA_TO_DEVICE) 3572 mpi_control = MPI2_SCSIIO_CONTROL_WRITE; 3573 else 3574 mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER; 3575 3576 /* set tags */ 3577 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ; 3578 3579 if ((sas_device_priv_data->flags & MPT_DEVICE_TLR_ON) && 3580 scmd->cmd_len != 32) 3581 mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON; 3582 3583 smid = mpt3sas_base_get_smid_scsiio(ioc, ioc->scsi_io_cb_idx, scmd); 3584 if (!smid) { 3585 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n", 3586 ioc->name, __func__); 3587 goto out; 3588 } 3589 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 3590 memset(mpi_request, 0, sizeof(Mpi2SCSIIORequest_t)); 3591 _scsih_setup_eedp(ioc, scmd, mpi_request); 3592 3593 if (scmd->cmd_len == 32) 3594 mpi_control |= 4 << MPI2_SCSIIO_CONTROL_ADDCDBLEN_SHIFT; 3595 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST; 3596 if (sas_device_priv_data->sas_target->flags & 3597 MPT_TARGET_FLAGS_RAID_COMPONENT) 3598 mpi_request->Function = MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH; 3599 else 3600 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST; 3601 mpi_request->DevHandle = cpu_to_le16(handle); 3602 mpi_request->DataLength = cpu_to_le32(scsi_bufflen(scmd)); 3603 mpi_request->Control = cpu_to_le32(mpi_control); 3604 mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len); 3605 mpi_request->MsgFlags = MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR; 3606 mpi_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE; 3607 mpi_request->SenseBufferLowAddress = 3608 mpt3sas_base_get_sense_buffer_dma(ioc, smid); 3609 mpi_request->SGLOffset0 = offsetof(Mpi2SCSIIORequest_t, SGL) / 4; 3610 int_to_scsilun(sas_device_priv_data->lun, (struct scsi_lun *) 3611 mpi_request->LUN); 3612 memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len); 3613 3614 if (mpi_request->DataLength) { 3615 if (ioc->build_sg_scmd(ioc, scmd, smid)) { 3616 mpt3sas_base_free_smid(ioc, smid); 3617 goto out; 3618 } 3619 } else 3620 ioc->build_zero_len_sge(ioc, &mpi_request->SGL); 3621 3622 if (likely(mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)) { 3623 if (sas_target_priv_data->flags & MPT_TARGET_FASTPATH_IO) { 3624 mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len | 3625 MPI25_SCSIIO_IOFLAGS_FAST_PATH); 3626 mpt3sas_base_put_smid_fast_path(ioc, smid, handle); 3627 } else 3628 mpt3sas_base_put_smid_scsi_io(ioc, smid, handle); 3629 } else 3630 mpt3sas_base_put_smid_default(ioc, smid); 3631 return 0; 3632 3633 out: 3634 return SCSI_MLQUEUE_HOST_BUSY; 3635 } 3636 3637 /** 3638 * _scsih_normalize_sense - normalize descriptor and fixed format sense data 3639 * @sense_buffer: sense data returned by target 3640 * @data: normalized skey/asc/ascq 3641 * 3642 * Return nothing. 3643 */ 3644 static void 3645 _scsih_normalize_sense(char *sense_buffer, struct sense_info *data) 3646 { 3647 if ((sense_buffer[0] & 0x7F) >= 0x72) { 3648 /* descriptor format */ 3649 data->skey = sense_buffer[1] & 0x0F; 3650 data->asc = sense_buffer[2]; 3651 data->ascq = sense_buffer[3]; 3652 } else { 3653 /* fixed format */ 3654 data->skey = sense_buffer[2] & 0x0F; 3655 data->asc = sense_buffer[12]; 3656 data->ascq = sense_buffer[13]; 3657 } 3658 } 3659 3660 #ifdef CONFIG_SCSI_MPT3SAS_LOGGING 3661 /** 3662 * _scsih_scsi_ioc_info - translated non-succesfull SCSI_IO request 3663 * @ioc: per adapter object 3664 * @scmd: pointer to scsi command object 3665 * @mpi_reply: reply mf payload returned from firmware 3666 * 3667 * scsi_status - SCSI Status code returned from target device 3668 * scsi_state - state info associated with SCSI_IO determined by ioc 3669 * ioc_status - ioc supplied status info 3670 * 3671 * Return nothing. 3672 */ 3673 static void 3674 _scsih_scsi_ioc_info(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd, 3675 Mpi2SCSIIOReply_t *mpi_reply, u16 smid) 3676 { 3677 u32 response_info; 3678 u8 *response_bytes; 3679 u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & 3680 MPI2_IOCSTATUS_MASK; 3681 u8 scsi_state = mpi_reply->SCSIState; 3682 u8 scsi_status = mpi_reply->SCSIStatus; 3683 char *desc_ioc_state = NULL; 3684 char *desc_scsi_status = NULL; 3685 char *desc_scsi_state = ioc->tmp_string; 3686 u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo); 3687 struct _sas_device *sas_device = NULL; 3688 unsigned long flags; 3689 struct scsi_target *starget = scmd->device->sdev_target; 3690 struct MPT3SAS_TARGET *priv_target = starget->hostdata; 3691 char *device_str = NULL; 3692 3693 if (!priv_target) 3694 return; 3695 device_str = "volume"; 3696 3697 if (log_info == 0x31170000) 3698 return; 3699 3700 switch (ioc_status) { 3701 case MPI2_IOCSTATUS_SUCCESS: 3702 desc_ioc_state = "success"; 3703 break; 3704 case MPI2_IOCSTATUS_INVALID_FUNCTION: 3705 desc_ioc_state = "invalid function"; 3706 break; 3707 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR: 3708 desc_ioc_state = "scsi recovered error"; 3709 break; 3710 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE: 3711 desc_ioc_state = "scsi invalid dev handle"; 3712 break; 3713 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE: 3714 desc_ioc_state = "scsi device not there"; 3715 break; 3716 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN: 3717 desc_ioc_state = "scsi data overrun"; 3718 break; 3719 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN: 3720 desc_ioc_state = "scsi data underrun"; 3721 break; 3722 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR: 3723 desc_ioc_state = "scsi io data error"; 3724 break; 3725 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR: 3726 desc_ioc_state = "scsi protocol error"; 3727 break; 3728 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED: 3729 desc_ioc_state = "scsi task terminated"; 3730 break; 3731 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: 3732 desc_ioc_state = "scsi residual mismatch"; 3733 break; 3734 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED: 3735 desc_ioc_state = "scsi task mgmt failed"; 3736 break; 3737 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED: 3738 desc_ioc_state = "scsi ioc terminated"; 3739 break; 3740 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED: 3741 desc_ioc_state = "scsi ext terminated"; 3742 break; 3743 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR: 3744 desc_ioc_state = "eedp guard error"; 3745 break; 3746 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR: 3747 desc_ioc_state = "eedp ref tag error"; 3748 break; 3749 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR: 3750 desc_ioc_state = "eedp app tag error"; 3751 break; 3752 default: 3753 desc_ioc_state = "unknown"; 3754 break; 3755 } 3756 3757 switch (scsi_status) { 3758 case MPI2_SCSI_STATUS_GOOD: 3759 desc_scsi_status = "good"; 3760 break; 3761 case MPI2_SCSI_STATUS_CHECK_CONDITION: 3762 desc_scsi_status = "check condition"; 3763 break; 3764 case MPI2_SCSI_STATUS_CONDITION_MET: 3765 desc_scsi_status = "condition met"; 3766 break; 3767 case MPI2_SCSI_STATUS_BUSY: 3768 desc_scsi_status = "busy"; 3769 break; 3770 case MPI2_SCSI_STATUS_INTERMEDIATE: 3771 desc_scsi_status = "intermediate"; 3772 break; 3773 case MPI2_SCSI_STATUS_INTERMEDIATE_CONDMET: 3774 desc_scsi_status = "intermediate condmet"; 3775 break; 3776 case MPI2_SCSI_STATUS_RESERVATION_CONFLICT: 3777 desc_scsi_status = "reservation conflict"; 3778 break; 3779 case MPI2_SCSI_STATUS_COMMAND_TERMINATED: 3780 desc_scsi_status = "command terminated"; 3781 break; 3782 case MPI2_SCSI_STATUS_TASK_SET_FULL: 3783 desc_scsi_status = "task set full"; 3784 break; 3785 case MPI2_SCSI_STATUS_ACA_ACTIVE: 3786 desc_scsi_status = "aca active"; 3787 break; 3788 case MPI2_SCSI_STATUS_TASK_ABORTED: 3789 desc_scsi_status = "task aborted"; 3790 break; 3791 default: 3792 desc_scsi_status = "unknown"; 3793 break; 3794 } 3795 3796 desc_scsi_state[0] = '\0'; 3797 if (!scsi_state) 3798 desc_scsi_state = " "; 3799 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) 3800 strcat(desc_scsi_state, "response info "); 3801 if (scsi_state & MPI2_SCSI_STATE_TERMINATED) 3802 strcat(desc_scsi_state, "state terminated "); 3803 if (scsi_state & MPI2_SCSI_STATE_NO_SCSI_STATUS) 3804 strcat(desc_scsi_state, "no status "); 3805 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_FAILED) 3806 strcat(desc_scsi_state, "autosense failed "); 3807 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) 3808 strcat(desc_scsi_state, "autosense valid "); 3809 3810 scsi_print_command(scmd); 3811 3812 if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) { 3813 pr_warn(MPT3SAS_FMT "\t%s wwid(0x%016llx)\n", ioc->name, 3814 device_str, (unsigned long long)priv_target->sas_address); 3815 } else { 3816 spin_lock_irqsave(&ioc->sas_device_lock, flags); 3817 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, 3818 priv_target->sas_address); 3819 if (sas_device) { 3820 pr_warn(MPT3SAS_FMT 3821 "\tsas_address(0x%016llx), phy(%d)\n", 3822 ioc->name, (unsigned long long) 3823 sas_device->sas_address, sas_device->phy); 3824 pr_warn(MPT3SAS_FMT 3825 "\tenclosure_logical_id(0x%016llx), slot(%d)\n", 3826 ioc->name, (unsigned long long) 3827 sas_device->enclosure_logical_id, sas_device->slot); 3828 } 3829 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 3830 } 3831 3832 pr_warn(MPT3SAS_FMT 3833 "\thandle(0x%04x), ioc_status(%s)(0x%04x), smid(%d)\n", 3834 ioc->name, le16_to_cpu(mpi_reply->DevHandle), 3835 desc_ioc_state, ioc_status, smid); 3836 pr_warn(MPT3SAS_FMT 3837 "\trequest_len(%d), underflow(%d), resid(%d)\n", 3838 ioc->name, scsi_bufflen(scmd), scmd->underflow, 3839 scsi_get_resid(scmd)); 3840 pr_warn(MPT3SAS_FMT 3841 "\ttag(%d), transfer_count(%d), sc->result(0x%08x)\n", 3842 ioc->name, le16_to_cpu(mpi_reply->TaskTag), 3843 le32_to_cpu(mpi_reply->TransferCount), scmd->result); 3844 pr_warn(MPT3SAS_FMT 3845 "\tscsi_status(%s)(0x%02x), scsi_state(%s)(0x%02x)\n", 3846 ioc->name, desc_scsi_status, 3847 scsi_status, desc_scsi_state, scsi_state); 3848 3849 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) { 3850 struct sense_info data; 3851 _scsih_normalize_sense(scmd->sense_buffer, &data); 3852 pr_warn(MPT3SAS_FMT 3853 "\t[sense_key,asc,ascq]: [0x%02x,0x%02x,0x%02x], count(%d)\n", 3854 ioc->name, data.skey, 3855 data.asc, data.ascq, le32_to_cpu(mpi_reply->SenseCount)); 3856 } 3857 3858 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) { 3859 response_info = le32_to_cpu(mpi_reply->ResponseInfo); 3860 response_bytes = (u8 *)&response_info; 3861 _scsih_response_code(ioc, response_bytes[0]); 3862 } 3863 } 3864 #endif 3865 3866 /** 3867 * _scsih_turn_on_pfa_led - illuminate PFA LED 3868 * @ioc: per adapter object 3869 * @handle: device handle 3870 * Context: process 3871 * 3872 * Return nothing. 3873 */ 3874 static void 3875 _scsih_turn_on_pfa_led(struct MPT3SAS_ADAPTER *ioc, u16 handle) 3876 { 3877 Mpi2SepReply_t mpi_reply; 3878 Mpi2SepRequest_t mpi_request; 3879 struct _sas_device *sas_device; 3880 3881 sas_device = _scsih_sas_device_find_by_handle(ioc, handle); 3882 if (!sas_device) 3883 return; 3884 3885 memset(&mpi_request, 0, sizeof(Mpi2SepRequest_t)); 3886 mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR; 3887 mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS; 3888 mpi_request.SlotStatus = 3889 cpu_to_le32(MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT); 3890 mpi_request.DevHandle = cpu_to_le16(handle); 3891 mpi_request.Flags = MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS; 3892 if ((mpt3sas_base_scsi_enclosure_processor(ioc, &mpi_reply, 3893 &mpi_request)) != 0) { 3894 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", ioc->name, 3895 __FILE__, __LINE__, __func__); 3896 return; 3897 } 3898 sas_device->pfa_led_on = 1; 3899 3900 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) { 3901 dewtprintk(ioc, pr_info(MPT3SAS_FMT 3902 "enclosure_processor: ioc_status (0x%04x), loginfo(0x%08x)\n", 3903 ioc->name, le16_to_cpu(mpi_reply.IOCStatus), 3904 le32_to_cpu(mpi_reply.IOCLogInfo))); 3905 return; 3906 } 3907 } 3908 /** 3909 * _scsih_turn_off_pfa_led - turn off Fault LED 3910 * @ioc: per adapter object 3911 * @sas_device: sas device whose PFA LED has to turned off 3912 * Context: process 3913 * 3914 * Return nothing. 3915 */ 3916 static void 3917 _scsih_turn_off_pfa_led(struct MPT3SAS_ADAPTER *ioc, 3918 struct _sas_device *sas_device) 3919 { 3920 Mpi2SepReply_t mpi_reply; 3921 Mpi2SepRequest_t mpi_request; 3922 3923 memset(&mpi_request, 0, sizeof(Mpi2SepRequest_t)); 3924 mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR; 3925 mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS; 3926 mpi_request.SlotStatus = 0; 3927 mpi_request.Slot = cpu_to_le16(sas_device->slot); 3928 mpi_request.DevHandle = 0; 3929 mpi_request.EnclosureHandle = cpu_to_le16(sas_device->enclosure_handle); 3930 mpi_request.Flags = MPI2_SEP_REQ_FLAGS_ENCLOSURE_SLOT_ADDRESS; 3931 if ((mpt3sas_base_scsi_enclosure_processor(ioc, &mpi_reply, 3932 &mpi_request)) != 0) { 3933 printk(MPT3SAS_FMT "failure at %s:%d/%s()!\n", ioc->name, 3934 __FILE__, __LINE__, __func__); 3935 return; 3936 } 3937 3938 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) { 3939 dewtprintk(ioc, printk(MPT3SAS_FMT 3940 "enclosure_processor: ioc_status (0x%04x), loginfo(0x%08x)\n", 3941 ioc->name, le16_to_cpu(mpi_reply.IOCStatus), 3942 le32_to_cpu(mpi_reply.IOCLogInfo))); 3943 return; 3944 } 3945 } 3946 /** 3947 * _scsih_send_event_to_turn_on_pfa_led - fire delayed event 3948 * @ioc: per adapter object 3949 * @handle: device handle 3950 * Context: interrupt. 3951 * 3952 * Return nothing. 3953 */ 3954 static void 3955 _scsih_send_event_to_turn_on_pfa_led(struct MPT3SAS_ADAPTER *ioc, u16 handle) 3956 { 3957 struct fw_event_work *fw_event; 3958 3959 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC); 3960 if (!fw_event) 3961 return; 3962 fw_event->event = MPT3SAS_TURN_ON_PFA_LED; 3963 fw_event->device_handle = handle; 3964 fw_event->ioc = ioc; 3965 _scsih_fw_event_add(ioc, fw_event); 3966 } 3967 3968 /** 3969 * _scsih_smart_predicted_fault - process smart errors 3970 * @ioc: per adapter object 3971 * @handle: device handle 3972 * Context: interrupt. 3973 * 3974 * Return nothing. 3975 */ 3976 static void 3977 _scsih_smart_predicted_fault(struct MPT3SAS_ADAPTER *ioc, u16 handle) 3978 { 3979 struct scsi_target *starget; 3980 struct MPT3SAS_TARGET *sas_target_priv_data; 3981 Mpi2EventNotificationReply_t *event_reply; 3982 Mpi2EventDataSasDeviceStatusChange_t *event_data; 3983 struct _sas_device *sas_device; 3984 ssize_t sz; 3985 unsigned long flags; 3986 3987 /* only handle non-raid devices */ 3988 spin_lock_irqsave(&ioc->sas_device_lock, flags); 3989 sas_device = _scsih_sas_device_find_by_handle(ioc, handle); 3990 if (!sas_device) { 3991 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 3992 return; 3993 } 3994 starget = sas_device->starget; 3995 sas_target_priv_data = starget->hostdata; 3996 3997 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) || 3998 ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))) { 3999 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 4000 return; 4001 } 4002 starget_printk(KERN_WARNING, starget, "predicted fault\n"); 4003 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 4004 4005 if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM) 4006 _scsih_send_event_to_turn_on_pfa_led(ioc, handle); 4007 4008 /* insert into event log */ 4009 sz = offsetof(Mpi2EventNotificationReply_t, EventData) + 4010 sizeof(Mpi2EventDataSasDeviceStatusChange_t); 4011 event_reply = kzalloc(sz, GFP_KERNEL); 4012 if (!event_reply) { 4013 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4014 ioc->name, __FILE__, __LINE__, __func__); 4015 return; 4016 } 4017 4018 event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION; 4019 event_reply->Event = 4020 cpu_to_le16(MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE); 4021 event_reply->MsgLength = sz/4; 4022 event_reply->EventDataLength = 4023 cpu_to_le16(sizeof(Mpi2EventDataSasDeviceStatusChange_t)/4); 4024 event_data = (Mpi2EventDataSasDeviceStatusChange_t *) 4025 event_reply->EventData; 4026 event_data->ReasonCode = MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA; 4027 event_data->ASC = 0x5D; 4028 event_data->DevHandle = cpu_to_le16(handle); 4029 event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address); 4030 mpt3sas_ctl_add_to_event_log(ioc, event_reply); 4031 kfree(event_reply); 4032 } 4033 4034 /** 4035 * _scsih_io_done - scsi request callback 4036 * @ioc: per adapter object 4037 * @smid: system request message index 4038 * @msix_index: MSIX table index supplied by the OS 4039 * @reply: reply message frame(lower 32bit addr) 4040 * 4041 * Callback handler when using _scsih_qcmd. 4042 * 4043 * Return 1 meaning mf should be freed from _base_interrupt 4044 * 0 means the mf is freed from this function. 4045 */ 4046 static u8 4047 _scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply) 4048 { 4049 Mpi2SCSIIORequest_t *mpi_request; 4050 Mpi2SCSIIOReply_t *mpi_reply; 4051 struct scsi_cmnd *scmd; 4052 u16 ioc_status; 4053 u32 xfer_cnt; 4054 u8 scsi_state; 4055 u8 scsi_status; 4056 u32 log_info; 4057 struct MPT3SAS_DEVICE *sas_device_priv_data; 4058 u32 response_code = 0; 4059 4060 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply); 4061 scmd = _scsih_scsi_lookup_get_clear(ioc, smid); 4062 if (scmd == NULL) 4063 return 1; 4064 4065 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 4066 4067 if (mpi_reply == NULL) { 4068 scmd->result = DID_OK << 16; 4069 goto out; 4070 } 4071 4072 sas_device_priv_data = scmd->device->hostdata; 4073 if (!sas_device_priv_data || !sas_device_priv_data->sas_target || 4074 sas_device_priv_data->sas_target->deleted) { 4075 scmd->result = DID_NO_CONNECT << 16; 4076 goto out; 4077 } 4078 ioc_status = le16_to_cpu(mpi_reply->IOCStatus); 4079 4080 /* turning off TLR */ 4081 scsi_state = mpi_reply->SCSIState; 4082 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) 4083 response_code = 4084 le32_to_cpu(mpi_reply->ResponseInfo) & 0xFF; 4085 if (!sas_device_priv_data->tlr_snoop_check) { 4086 sas_device_priv_data->tlr_snoop_check++; 4087 if ((sas_device_priv_data->flags & MPT_DEVICE_TLR_ON) && 4088 response_code == MPI2_SCSITASKMGMT_RSP_INVALID_FRAME) 4089 sas_device_priv_data->flags &= 4090 ~MPT_DEVICE_TLR_ON; 4091 } 4092 4093 xfer_cnt = le32_to_cpu(mpi_reply->TransferCount); 4094 scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt); 4095 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE) 4096 log_info = le32_to_cpu(mpi_reply->IOCLogInfo); 4097 else 4098 log_info = 0; 4099 ioc_status &= MPI2_IOCSTATUS_MASK; 4100 scsi_status = mpi_reply->SCSIStatus; 4101 4102 if (ioc_status == MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 && 4103 (scsi_status == MPI2_SCSI_STATUS_BUSY || 4104 scsi_status == MPI2_SCSI_STATUS_RESERVATION_CONFLICT || 4105 scsi_status == MPI2_SCSI_STATUS_TASK_SET_FULL)) { 4106 ioc_status = MPI2_IOCSTATUS_SUCCESS; 4107 } 4108 4109 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) { 4110 struct sense_info data; 4111 const void *sense_data = mpt3sas_base_get_sense_buffer(ioc, 4112 smid); 4113 u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE, 4114 le32_to_cpu(mpi_reply->SenseCount)); 4115 memcpy(scmd->sense_buffer, sense_data, sz); 4116 _scsih_normalize_sense(scmd->sense_buffer, &data); 4117 /* failure prediction threshold exceeded */ 4118 if (data.asc == 0x5D) 4119 _scsih_smart_predicted_fault(ioc, 4120 le16_to_cpu(mpi_reply->DevHandle)); 4121 mpt3sas_trigger_scsi(ioc, data.skey, data.asc, data.ascq); 4122 } 4123 4124 switch (ioc_status) { 4125 case MPI2_IOCSTATUS_BUSY: 4126 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES: 4127 scmd->result = SAM_STAT_BUSY; 4128 break; 4129 4130 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE: 4131 scmd->result = DID_NO_CONNECT << 16; 4132 break; 4133 4134 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED: 4135 if (sas_device_priv_data->block) { 4136 scmd->result = DID_TRANSPORT_DISRUPTED << 16; 4137 goto out; 4138 } 4139 if (log_info == 0x31110630) { 4140 if (scmd->retries > 2) { 4141 scmd->result = DID_NO_CONNECT << 16; 4142 scsi_device_set_state(scmd->device, 4143 SDEV_OFFLINE); 4144 } else { 4145 scmd->result = DID_SOFT_ERROR << 16; 4146 scmd->device->expecting_cc_ua = 1; 4147 } 4148 break; 4149 } 4150 scmd->result = DID_SOFT_ERROR << 16; 4151 break; 4152 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED: 4153 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED: 4154 scmd->result = DID_RESET << 16; 4155 break; 4156 4157 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: 4158 if ((xfer_cnt == 0) || (scmd->underflow > xfer_cnt)) 4159 scmd->result = DID_SOFT_ERROR << 16; 4160 else 4161 scmd->result = (DID_OK << 16) | scsi_status; 4162 break; 4163 4164 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN: 4165 scmd->result = (DID_OK << 16) | scsi_status; 4166 4167 if ((scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID)) 4168 break; 4169 4170 if (xfer_cnt < scmd->underflow) { 4171 if (scsi_status == SAM_STAT_BUSY) 4172 scmd->result = SAM_STAT_BUSY; 4173 else 4174 scmd->result = DID_SOFT_ERROR << 16; 4175 } else if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED | 4176 MPI2_SCSI_STATE_NO_SCSI_STATUS)) 4177 scmd->result = DID_SOFT_ERROR << 16; 4178 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED) 4179 scmd->result = DID_RESET << 16; 4180 else if (!xfer_cnt && scmd->cmnd[0] == REPORT_LUNS) { 4181 mpi_reply->SCSIState = MPI2_SCSI_STATE_AUTOSENSE_VALID; 4182 mpi_reply->SCSIStatus = SAM_STAT_CHECK_CONDITION; 4183 scmd->result = (DRIVER_SENSE << 24) | 4184 SAM_STAT_CHECK_CONDITION; 4185 scmd->sense_buffer[0] = 0x70; 4186 scmd->sense_buffer[2] = ILLEGAL_REQUEST; 4187 scmd->sense_buffer[12] = 0x20; 4188 scmd->sense_buffer[13] = 0; 4189 } 4190 break; 4191 4192 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN: 4193 scsi_set_resid(scmd, 0); 4194 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR: 4195 case MPI2_IOCSTATUS_SUCCESS: 4196 scmd->result = (DID_OK << 16) | scsi_status; 4197 if (response_code == 4198 MPI2_SCSITASKMGMT_RSP_INVALID_FRAME || 4199 (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED | 4200 MPI2_SCSI_STATE_NO_SCSI_STATUS))) 4201 scmd->result = DID_SOFT_ERROR << 16; 4202 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED) 4203 scmd->result = DID_RESET << 16; 4204 break; 4205 4206 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR: 4207 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR: 4208 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR: 4209 _scsih_eedp_error_handling(scmd, ioc_status); 4210 break; 4211 4212 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR: 4213 case MPI2_IOCSTATUS_INVALID_FUNCTION: 4214 case MPI2_IOCSTATUS_INVALID_SGL: 4215 case MPI2_IOCSTATUS_INTERNAL_ERROR: 4216 case MPI2_IOCSTATUS_INVALID_FIELD: 4217 case MPI2_IOCSTATUS_INVALID_STATE: 4218 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR: 4219 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED: 4220 default: 4221 scmd->result = DID_SOFT_ERROR << 16; 4222 break; 4223 4224 } 4225 4226 #ifdef CONFIG_SCSI_MPT3SAS_LOGGING 4227 if (scmd->result && (ioc->logging_level & MPT_DEBUG_REPLY)) 4228 _scsih_scsi_ioc_info(ioc , scmd, mpi_reply, smid); 4229 #endif 4230 4231 out: 4232 4233 scsi_dma_unmap(scmd); 4234 4235 scmd->scsi_done(scmd); 4236 return 1; 4237 } 4238 4239 /** 4240 * _scsih_sas_host_refresh - refreshing sas host object contents 4241 * @ioc: per adapter object 4242 * Context: user 4243 * 4244 * During port enable, fw will send topology events for every device. Its 4245 * possible that the handles may change from the previous setting, so this 4246 * code keeping handles updating if changed. 4247 * 4248 * Return nothing. 4249 */ 4250 static void 4251 _scsih_sas_host_refresh(struct MPT3SAS_ADAPTER *ioc) 4252 { 4253 u16 sz; 4254 u16 ioc_status; 4255 int i; 4256 Mpi2ConfigReply_t mpi_reply; 4257 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL; 4258 u16 attached_handle; 4259 u8 link_rate; 4260 4261 dtmprintk(ioc, pr_info(MPT3SAS_FMT 4262 "updating handles for sas_host(0x%016llx)\n", 4263 ioc->name, (unsigned long long)ioc->sas_hba.sas_address)); 4264 4265 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys 4266 * sizeof(Mpi2SasIOUnit0PhyData_t)); 4267 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL); 4268 if (!sas_iounit_pg0) { 4269 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4270 ioc->name, __FILE__, __LINE__, __func__); 4271 return; 4272 } 4273 4274 if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply, 4275 sas_iounit_pg0, sz)) != 0) 4276 goto out; 4277 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK; 4278 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) 4279 goto out; 4280 for (i = 0; i < ioc->sas_hba.num_phys ; i++) { 4281 link_rate = sas_iounit_pg0->PhyData[i].NegotiatedLinkRate >> 4; 4282 if (i == 0) 4283 ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0-> 4284 PhyData[0].ControllerDevHandle); 4285 ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle; 4286 attached_handle = le16_to_cpu(sas_iounit_pg0->PhyData[i]. 4287 AttachedDevHandle); 4288 if (attached_handle && link_rate < MPI2_SAS_NEG_LINK_RATE_1_5) 4289 link_rate = MPI2_SAS_NEG_LINK_RATE_1_5; 4290 mpt3sas_transport_update_links(ioc, ioc->sas_hba.sas_address, 4291 attached_handle, i, link_rate); 4292 } 4293 out: 4294 kfree(sas_iounit_pg0); 4295 } 4296 4297 /** 4298 * _scsih_sas_host_add - create sas host object 4299 * @ioc: per adapter object 4300 * 4301 * Creating host side data object, stored in ioc->sas_hba 4302 * 4303 * Return nothing. 4304 */ 4305 static void 4306 _scsih_sas_host_add(struct MPT3SAS_ADAPTER *ioc) 4307 { 4308 int i; 4309 Mpi2ConfigReply_t mpi_reply; 4310 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL; 4311 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL; 4312 Mpi2SasPhyPage0_t phy_pg0; 4313 Mpi2SasDevicePage0_t sas_device_pg0; 4314 Mpi2SasEnclosurePage0_t enclosure_pg0; 4315 u16 ioc_status; 4316 u16 sz; 4317 u8 device_missing_delay; 4318 4319 mpt3sas_config_get_number_hba_phys(ioc, &ioc->sas_hba.num_phys); 4320 if (!ioc->sas_hba.num_phys) { 4321 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4322 ioc->name, __FILE__, __LINE__, __func__); 4323 return; 4324 } 4325 4326 /* sas_iounit page 0 */ 4327 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys * 4328 sizeof(Mpi2SasIOUnit0PhyData_t)); 4329 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL); 4330 if (!sas_iounit_pg0) { 4331 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4332 ioc->name, __FILE__, __LINE__, __func__); 4333 return; 4334 } 4335 if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply, 4336 sas_iounit_pg0, sz))) { 4337 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4338 ioc->name, __FILE__, __LINE__, __func__); 4339 goto out; 4340 } 4341 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 4342 MPI2_IOCSTATUS_MASK; 4343 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 4344 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4345 ioc->name, __FILE__, __LINE__, __func__); 4346 goto out; 4347 } 4348 4349 /* sas_iounit page 1 */ 4350 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys * 4351 sizeof(Mpi2SasIOUnit1PhyData_t)); 4352 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL); 4353 if (!sas_iounit_pg1) { 4354 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4355 ioc->name, __FILE__, __LINE__, __func__); 4356 goto out; 4357 } 4358 if ((mpt3sas_config_get_sas_iounit_pg1(ioc, &mpi_reply, 4359 sas_iounit_pg1, sz))) { 4360 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4361 ioc->name, __FILE__, __LINE__, __func__); 4362 goto out; 4363 } 4364 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 4365 MPI2_IOCSTATUS_MASK; 4366 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 4367 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4368 ioc->name, __FILE__, __LINE__, __func__); 4369 goto out; 4370 } 4371 4372 ioc->io_missing_delay = 4373 sas_iounit_pg1->IODeviceMissingDelay; 4374 device_missing_delay = 4375 sas_iounit_pg1->ReportDeviceMissingDelay; 4376 if (device_missing_delay & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16) 4377 ioc->device_missing_delay = (device_missing_delay & 4378 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16; 4379 else 4380 ioc->device_missing_delay = device_missing_delay & 4381 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK; 4382 4383 ioc->sas_hba.parent_dev = &ioc->shost->shost_gendev; 4384 ioc->sas_hba.phy = kcalloc(ioc->sas_hba.num_phys, 4385 sizeof(struct _sas_phy), GFP_KERNEL); 4386 if (!ioc->sas_hba.phy) { 4387 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4388 ioc->name, __FILE__, __LINE__, __func__); 4389 goto out; 4390 } 4391 for (i = 0; i < ioc->sas_hba.num_phys ; i++) { 4392 if ((mpt3sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0, 4393 i))) { 4394 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4395 ioc->name, __FILE__, __LINE__, __func__); 4396 goto out; 4397 } 4398 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 4399 MPI2_IOCSTATUS_MASK; 4400 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 4401 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4402 ioc->name, __FILE__, __LINE__, __func__); 4403 goto out; 4404 } 4405 4406 if (i == 0) 4407 ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0-> 4408 PhyData[0].ControllerDevHandle); 4409 ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle; 4410 ioc->sas_hba.phy[i].phy_id = i; 4411 mpt3sas_transport_add_host_phy(ioc, &ioc->sas_hba.phy[i], 4412 phy_pg0, ioc->sas_hba.parent_dev); 4413 } 4414 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0, 4415 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, ioc->sas_hba.handle))) { 4416 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4417 ioc->name, __FILE__, __LINE__, __func__); 4418 goto out; 4419 } 4420 ioc->sas_hba.enclosure_handle = 4421 le16_to_cpu(sas_device_pg0.EnclosureHandle); 4422 ioc->sas_hba.sas_address = le64_to_cpu(sas_device_pg0.SASAddress); 4423 pr_info(MPT3SAS_FMT 4424 "host_add: handle(0x%04x), sas_addr(0x%016llx), phys(%d)\n", 4425 ioc->name, ioc->sas_hba.handle, 4426 (unsigned long long) ioc->sas_hba.sas_address, 4427 ioc->sas_hba.num_phys) ; 4428 4429 if (ioc->sas_hba.enclosure_handle) { 4430 if (!(mpt3sas_config_get_enclosure_pg0(ioc, &mpi_reply, 4431 &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE, 4432 ioc->sas_hba.enclosure_handle))) 4433 ioc->sas_hba.enclosure_logical_id = 4434 le64_to_cpu(enclosure_pg0.EnclosureLogicalID); 4435 } 4436 4437 out: 4438 kfree(sas_iounit_pg1); 4439 kfree(sas_iounit_pg0); 4440 } 4441 4442 /** 4443 * _scsih_expander_add - creating expander object 4444 * @ioc: per adapter object 4445 * @handle: expander handle 4446 * 4447 * Creating expander object, stored in ioc->sas_expander_list. 4448 * 4449 * Return 0 for success, else error. 4450 */ 4451 static int 4452 _scsih_expander_add(struct MPT3SAS_ADAPTER *ioc, u16 handle) 4453 { 4454 struct _sas_node *sas_expander; 4455 Mpi2ConfigReply_t mpi_reply; 4456 Mpi2ExpanderPage0_t expander_pg0; 4457 Mpi2ExpanderPage1_t expander_pg1; 4458 Mpi2SasEnclosurePage0_t enclosure_pg0; 4459 u32 ioc_status; 4460 u16 parent_handle; 4461 u64 sas_address, sas_address_parent = 0; 4462 int i; 4463 unsigned long flags; 4464 struct _sas_port *mpt3sas_port = NULL; 4465 4466 int rc = 0; 4467 4468 if (!handle) 4469 return -1; 4470 4471 if (ioc->shost_recovery || ioc->pci_error_recovery) 4472 return -1; 4473 4474 if ((mpt3sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0, 4475 MPI2_SAS_EXPAND_PGAD_FORM_HNDL, handle))) { 4476 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4477 ioc->name, __FILE__, __LINE__, __func__); 4478 return -1; 4479 } 4480 4481 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 4482 MPI2_IOCSTATUS_MASK; 4483 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 4484 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4485 ioc->name, __FILE__, __LINE__, __func__); 4486 return -1; 4487 } 4488 4489 /* handle out of order topology events */ 4490 parent_handle = le16_to_cpu(expander_pg0.ParentDevHandle); 4491 if (_scsih_get_sas_address(ioc, parent_handle, &sas_address_parent) 4492 != 0) { 4493 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4494 ioc->name, __FILE__, __LINE__, __func__); 4495 return -1; 4496 } 4497 if (sas_address_parent != ioc->sas_hba.sas_address) { 4498 spin_lock_irqsave(&ioc->sas_node_lock, flags); 4499 sas_expander = mpt3sas_scsih_expander_find_by_sas_address(ioc, 4500 sas_address_parent); 4501 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 4502 if (!sas_expander) { 4503 rc = _scsih_expander_add(ioc, parent_handle); 4504 if (rc != 0) 4505 return rc; 4506 } 4507 } 4508 4509 spin_lock_irqsave(&ioc->sas_node_lock, flags); 4510 sas_address = le64_to_cpu(expander_pg0.SASAddress); 4511 sas_expander = mpt3sas_scsih_expander_find_by_sas_address(ioc, 4512 sas_address); 4513 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 4514 4515 if (sas_expander) 4516 return 0; 4517 4518 sas_expander = kzalloc(sizeof(struct _sas_node), 4519 GFP_KERNEL); 4520 if (!sas_expander) { 4521 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4522 ioc->name, __FILE__, __LINE__, __func__); 4523 return -1; 4524 } 4525 4526 sas_expander->handle = handle; 4527 sas_expander->num_phys = expander_pg0.NumPhys; 4528 sas_expander->sas_address_parent = sas_address_parent; 4529 sas_expander->sas_address = sas_address; 4530 4531 pr_info(MPT3SAS_FMT "expander_add: handle(0x%04x)," \ 4532 " parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n", ioc->name, 4533 handle, parent_handle, (unsigned long long) 4534 sas_expander->sas_address, sas_expander->num_phys); 4535 4536 if (!sas_expander->num_phys) 4537 goto out_fail; 4538 sas_expander->phy = kcalloc(sas_expander->num_phys, 4539 sizeof(struct _sas_phy), GFP_KERNEL); 4540 if (!sas_expander->phy) { 4541 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4542 ioc->name, __FILE__, __LINE__, __func__); 4543 rc = -1; 4544 goto out_fail; 4545 } 4546 4547 INIT_LIST_HEAD(&sas_expander->sas_port_list); 4548 mpt3sas_port = mpt3sas_transport_port_add(ioc, handle, 4549 sas_address_parent); 4550 if (!mpt3sas_port) { 4551 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4552 ioc->name, __FILE__, __LINE__, __func__); 4553 rc = -1; 4554 goto out_fail; 4555 } 4556 sas_expander->parent_dev = &mpt3sas_port->rphy->dev; 4557 4558 for (i = 0 ; i < sas_expander->num_phys ; i++) { 4559 if ((mpt3sas_config_get_expander_pg1(ioc, &mpi_reply, 4560 &expander_pg1, i, handle))) { 4561 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4562 ioc->name, __FILE__, __LINE__, __func__); 4563 rc = -1; 4564 goto out_fail; 4565 } 4566 sas_expander->phy[i].handle = handle; 4567 sas_expander->phy[i].phy_id = i; 4568 4569 if ((mpt3sas_transport_add_expander_phy(ioc, 4570 &sas_expander->phy[i], expander_pg1, 4571 sas_expander->parent_dev))) { 4572 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4573 ioc->name, __FILE__, __LINE__, __func__); 4574 rc = -1; 4575 goto out_fail; 4576 } 4577 } 4578 4579 if (sas_expander->enclosure_handle) { 4580 if (!(mpt3sas_config_get_enclosure_pg0(ioc, &mpi_reply, 4581 &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE, 4582 sas_expander->enclosure_handle))) 4583 sas_expander->enclosure_logical_id = 4584 le64_to_cpu(enclosure_pg0.EnclosureLogicalID); 4585 } 4586 4587 _scsih_expander_node_add(ioc, sas_expander); 4588 return 0; 4589 4590 out_fail: 4591 4592 if (mpt3sas_port) 4593 mpt3sas_transport_port_remove(ioc, sas_expander->sas_address, 4594 sas_address_parent); 4595 kfree(sas_expander); 4596 return rc; 4597 } 4598 4599 /** 4600 * mpt3sas_expander_remove - removing expander object 4601 * @ioc: per adapter object 4602 * @sas_address: expander sas_address 4603 * 4604 * Return nothing. 4605 */ 4606 void 4607 mpt3sas_expander_remove(struct MPT3SAS_ADAPTER *ioc, u64 sas_address) 4608 { 4609 struct _sas_node *sas_expander; 4610 unsigned long flags; 4611 4612 if (ioc->shost_recovery) 4613 return; 4614 4615 spin_lock_irqsave(&ioc->sas_node_lock, flags); 4616 sas_expander = mpt3sas_scsih_expander_find_by_sas_address(ioc, 4617 sas_address); 4618 if (sas_expander) 4619 list_del(&sas_expander->list); 4620 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 4621 if (sas_expander) 4622 _scsih_expander_node_remove(ioc, sas_expander); 4623 } 4624 4625 /** 4626 * _scsih_done - internal SCSI_IO callback handler. 4627 * @ioc: per adapter object 4628 * @smid: system request message index 4629 * @msix_index: MSIX table index supplied by the OS 4630 * @reply: reply message frame(lower 32bit addr) 4631 * 4632 * Callback handler when sending internal generated SCSI_IO. 4633 * The callback index passed is `ioc->scsih_cb_idx` 4634 * 4635 * Return 1 meaning mf should be freed from _base_interrupt 4636 * 0 means the mf is freed from this function. 4637 */ 4638 static u8 4639 _scsih_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply) 4640 { 4641 MPI2DefaultReply_t *mpi_reply; 4642 4643 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply); 4644 if (ioc->scsih_cmds.status == MPT3_CMD_NOT_USED) 4645 return 1; 4646 if (ioc->scsih_cmds.smid != smid) 4647 return 1; 4648 ioc->scsih_cmds.status |= MPT3_CMD_COMPLETE; 4649 if (mpi_reply) { 4650 memcpy(ioc->scsih_cmds.reply, mpi_reply, 4651 mpi_reply->MsgLength*4); 4652 ioc->scsih_cmds.status |= MPT3_CMD_REPLY_VALID; 4653 } 4654 ioc->scsih_cmds.status &= ~MPT3_CMD_PENDING; 4655 complete(&ioc->scsih_cmds.done); 4656 return 1; 4657 } 4658 4659 4660 4661 4662 #define MPT3_MAX_LUNS (255) 4663 4664 4665 /** 4666 * _scsih_check_access_status - check access flags 4667 * @ioc: per adapter object 4668 * @sas_address: sas address 4669 * @handle: sas device handle 4670 * @access_flags: errors returned during discovery of the device 4671 * 4672 * Return 0 for success, else failure 4673 */ 4674 static u8 4675 _scsih_check_access_status(struct MPT3SAS_ADAPTER *ioc, u64 sas_address, 4676 u16 handle, u8 access_status) 4677 { 4678 u8 rc = 1; 4679 char *desc = NULL; 4680 4681 switch (access_status) { 4682 case MPI2_SAS_DEVICE0_ASTATUS_NO_ERRORS: 4683 case MPI2_SAS_DEVICE0_ASTATUS_SATA_NEEDS_INITIALIZATION: 4684 rc = 0; 4685 break; 4686 case MPI2_SAS_DEVICE0_ASTATUS_SATA_CAPABILITY_FAILED: 4687 desc = "sata capability failed"; 4688 break; 4689 case MPI2_SAS_DEVICE0_ASTATUS_SATA_AFFILIATION_CONFLICT: 4690 desc = "sata affiliation conflict"; 4691 break; 4692 case MPI2_SAS_DEVICE0_ASTATUS_ROUTE_NOT_ADDRESSABLE: 4693 desc = "route not addressable"; 4694 break; 4695 case MPI2_SAS_DEVICE0_ASTATUS_SMP_ERROR_NOT_ADDRESSABLE: 4696 desc = "smp error not addressable"; 4697 break; 4698 case MPI2_SAS_DEVICE0_ASTATUS_DEVICE_BLOCKED: 4699 desc = "device blocked"; 4700 break; 4701 case MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED: 4702 case MPI2_SAS_DEVICE0_ASTATUS_SIF_UNKNOWN: 4703 case MPI2_SAS_DEVICE0_ASTATUS_SIF_AFFILIATION_CONFLICT: 4704 case MPI2_SAS_DEVICE0_ASTATUS_SIF_DIAG: 4705 case MPI2_SAS_DEVICE0_ASTATUS_SIF_IDENTIFICATION: 4706 case MPI2_SAS_DEVICE0_ASTATUS_SIF_CHECK_POWER: 4707 case MPI2_SAS_DEVICE0_ASTATUS_SIF_PIO_SN: 4708 case MPI2_SAS_DEVICE0_ASTATUS_SIF_MDMA_SN: 4709 case MPI2_SAS_DEVICE0_ASTATUS_SIF_UDMA_SN: 4710 case MPI2_SAS_DEVICE0_ASTATUS_SIF_ZONING_VIOLATION: 4711 case MPI2_SAS_DEVICE0_ASTATUS_SIF_NOT_ADDRESSABLE: 4712 case MPI2_SAS_DEVICE0_ASTATUS_SIF_MAX: 4713 desc = "sata initialization failed"; 4714 break; 4715 default: 4716 desc = "unknown"; 4717 break; 4718 } 4719 4720 if (!rc) 4721 return 0; 4722 4723 pr_err(MPT3SAS_FMT 4724 "discovery errors(%s): sas_address(0x%016llx), handle(0x%04x)\n", 4725 ioc->name, desc, (unsigned long long)sas_address, handle); 4726 return rc; 4727 } 4728 4729 /** 4730 * _scsih_check_device - checking device responsiveness 4731 * @ioc: per adapter object 4732 * @parent_sas_address: sas address of parent expander or sas host 4733 * @handle: attached device handle 4734 * @phy_numberv: phy number 4735 * @link_rate: new link rate 4736 * 4737 * Returns nothing. 4738 */ 4739 static void 4740 _scsih_check_device(struct MPT3SAS_ADAPTER *ioc, 4741 u64 parent_sas_address, u16 handle, u8 phy_number, u8 link_rate) 4742 { 4743 Mpi2ConfigReply_t mpi_reply; 4744 Mpi2SasDevicePage0_t sas_device_pg0; 4745 struct _sas_device *sas_device; 4746 u32 ioc_status; 4747 unsigned long flags; 4748 u64 sas_address; 4749 struct scsi_target *starget; 4750 struct MPT3SAS_TARGET *sas_target_priv_data; 4751 u32 device_info; 4752 4753 4754 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0, 4755 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) 4756 return; 4757 4758 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK; 4759 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) 4760 return; 4761 4762 /* wide port handling ~ we need only handle device once for the phy that 4763 * is matched in sas device page zero 4764 */ 4765 if (phy_number != sas_device_pg0.PhyNum) 4766 return; 4767 4768 /* check if this is end device */ 4769 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo); 4770 if (!(_scsih_is_end_device(device_info))) 4771 return; 4772 4773 spin_lock_irqsave(&ioc->sas_device_lock, flags); 4774 sas_address = le64_to_cpu(sas_device_pg0.SASAddress); 4775 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, 4776 sas_address); 4777 4778 if (!sas_device) { 4779 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 4780 return; 4781 } 4782 4783 if (unlikely(sas_device->handle != handle)) { 4784 starget = sas_device->starget; 4785 sas_target_priv_data = starget->hostdata; 4786 starget_printk(KERN_INFO, starget, 4787 "handle changed from(0x%04x) to (0x%04x)!!!\n", 4788 sas_device->handle, handle); 4789 sas_target_priv_data->handle = handle; 4790 sas_device->handle = handle; 4791 } 4792 4793 /* check if device is present */ 4794 if (!(le16_to_cpu(sas_device_pg0.Flags) & 4795 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) { 4796 pr_err(MPT3SAS_FMT 4797 "device is not present handle(0x%04x), flags!!!\n", 4798 ioc->name, handle); 4799 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 4800 return; 4801 } 4802 4803 /* check if there were any issues with discovery */ 4804 if (_scsih_check_access_status(ioc, sas_address, handle, 4805 sas_device_pg0.AccessStatus)) { 4806 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 4807 return; 4808 } 4809 4810 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 4811 _scsih_ublock_io_device(ioc, sas_address); 4812 4813 } 4814 4815 /** 4816 * _scsih_add_device - creating sas device object 4817 * @ioc: per adapter object 4818 * @handle: sas device handle 4819 * @phy_num: phy number end device attached to 4820 * @is_pd: is this hidden raid component 4821 * 4822 * Creating end device object, stored in ioc->sas_device_list. 4823 * 4824 * Returns 0 for success, non-zero for failure. 4825 */ 4826 static int 4827 _scsih_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle, u8 phy_num, 4828 u8 is_pd) 4829 { 4830 Mpi2ConfigReply_t mpi_reply; 4831 Mpi2SasDevicePage0_t sas_device_pg0; 4832 Mpi2SasEnclosurePage0_t enclosure_pg0; 4833 struct _sas_device *sas_device; 4834 u32 ioc_status; 4835 u64 sas_address; 4836 u32 device_info; 4837 unsigned long flags; 4838 4839 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0, 4840 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) { 4841 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4842 ioc->name, __FILE__, __LINE__, __func__); 4843 return -1; 4844 } 4845 4846 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 4847 MPI2_IOCSTATUS_MASK; 4848 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 4849 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4850 ioc->name, __FILE__, __LINE__, __func__); 4851 return -1; 4852 } 4853 4854 /* check if this is end device */ 4855 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo); 4856 if (!(_scsih_is_end_device(device_info))) 4857 return -1; 4858 sas_address = le64_to_cpu(sas_device_pg0.SASAddress); 4859 4860 /* check if device is present */ 4861 if (!(le16_to_cpu(sas_device_pg0.Flags) & 4862 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) { 4863 pr_err(MPT3SAS_FMT "device is not present handle(0x04%x)!!!\n", 4864 ioc->name, handle); 4865 return -1; 4866 } 4867 4868 /* check if there were any issues with discovery */ 4869 if (_scsih_check_access_status(ioc, sas_address, handle, 4870 sas_device_pg0.AccessStatus)) 4871 return -1; 4872 4873 spin_lock_irqsave(&ioc->sas_device_lock, flags); 4874 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, 4875 sas_address); 4876 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 4877 4878 if (sas_device) 4879 return -1; 4880 4881 sas_device = kzalloc(sizeof(struct _sas_device), 4882 GFP_KERNEL); 4883 if (!sas_device) { 4884 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4885 ioc->name, __FILE__, __LINE__, __func__); 4886 return 0; 4887 } 4888 4889 sas_device->handle = handle; 4890 if (_scsih_get_sas_address(ioc, 4891 le16_to_cpu(sas_device_pg0.ParentDevHandle), 4892 &sas_device->sas_address_parent) != 0) 4893 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 4894 ioc->name, __FILE__, __LINE__, __func__); 4895 sas_device->enclosure_handle = 4896 le16_to_cpu(sas_device_pg0.EnclosureHandle); 4897 sas_device->slot = 4898 le16_to_cpu(sas_device_pg0.Slot); 4899 sas_device->device_info = device_info; 4900 sas_device->sas_address = sas_address; 4901 sas_device->phy = sas_device_pg0.PhyNum; 4902 sas_device->fast_path = (le16_to_cpu(sas_device_pg0.Flags) & 4903 MPI25_SAS_DEVICE0_FLAGS_FAST_PATH_CAPABLE) ? 1 : 0; 4904 4905 /* get enclosure_logical_id */ 4906 if (sas_device->enclosure_handle && !(mpt3sas_config_get_enclosure_pg0( 4907 ioc, &mpi_reply, &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE, 4908 sas_device->enclosure_handle))) 4909 sas_device->enclosure_logical_id = 4910 le64_to_cpu(enclosure_pg0.EnclosureLogicalID); 4911 4912 /* get device name */ 4913 sas_device->device_name = le64_to_cpu(sas_device_pg0.DeviceName); 4914 4915 if (ioc->wait_for_discovery_to_complete) 4916 _scsih_sas_device_init_add(ioc, sas_device); 4917 else 4918 _scsih_sas_device_add(ioc, sas_device); 4919 4920 return 0; 4921 } 4922 4923 /** 4924 * _scsih_remove_device - removing sas device object 4925 * @ioc: per adapter object 4926 * @sas_device_delete: the sas_device object 4927 * 4928 * Return nothing. 4929 */ 4930 static void 4931 _scsih_remove_device(struct MPT3SAS_ADAPTER *ioc, 4932 struct _sas_device *sas_device) 4933 { 4934 struct MPT3SAS_TARGET *sas_target_priv_data; 4935 4936 if ((ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM) && 4937 (sas_device->pfa_led_on)) { 4938 _scsih_turn_off_pfa_led(ioc, sas_device); 4939 sas_device->pfa_led_on = 0; 4940 } 4941 dewtprintk(ioc, pr_info(MPT3SAS_FMT 4942 "%s: enter: handle(0x%04x), sas_addr(0x%016llx)\n", 4943 ioc->name, __func__, 4944 sas_device->handle, (unsigned long long) 4945 sas_device->sas_address)); 4946 4947 if (sas_device->starget && sas_device->starget->hostdata) { 4948 sas_target_priv_data = sas_device->starget->hostdata; 4949 sas_target_priv_data->deleted = 1; 4950 _scsih_ublock_io_device(ioc, sas_device->sas_address); 4951 sas_target_priv_data->handle = 4952 MPT3SAS_INVALID_DEVICE_HANDLE; 4953 } 4954 mpt3sas_transport_port_remove(ioc, 4955 sas_device->sas_address, 4956 sas_device->sas_address_parent); 4957 4958 pr_info(MPT3SAS_FMT 4959 "removing handle(0x%04x), sas_addr(0x%016llx)\n", 4960 ioc->name, sas_device->handle, 4961 (unsigned long long) sas_device->sas_address); 4962 4963 dewtprintk(ioc, pr_info(MPT3SAS_FMT 4964 "%s: exit: handle(0x%04x), sas_addr(0x%016llx)\n", 4965 ioc->name, __func__, 4966 sas_device->handle, (unsigned long long) 4967 sas_device->sas_address)); 4968 4969 kfree(sas_device); 4970 } 4971 4972 #ifdef CONFIG_SCSI_MPT3SAS_LOGGING 4973 /** 4974 * _scsih_sas_topology_change_event_debug - debug for topology event 4975 * @ioc: per adapter object 4976 * @event_data: event data payload 4977 * Context: user. 4978 */ 4979 static void 4980 _scsih_sas_topology_change_event_debug(struct MPT3SAS_ADAPTER *ioc, 4981 Mpi2EventDataSasTopologyChangeList_t *event_data) 4982 { 4983 int i; 4984 u16 handle; 4985 u16 reason_code; 4986 u8 phy_number; 4987 char *status_str = NULL; 4988 u8 link_rate, prev_link_rate; 4989 4990 switch (event_data->ExpStatus) { 4991 case MPI2_EVENT_SAS_TOPO_ES_ADDED: 4992 status_str = "add"; 4993 break; 4994 case MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING: 4995 status_str = "remove"; 4996 break; 4997 case MPI2_EVENT_SAS_TOPO_ES_RESPONDING: 4998 case 0: 4999 status_str = "responding"; 5000 break; 5001 case MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING: 5002 status_str = "remove delay"; 5003 break; 5004 default: 5005 status_str = "unknown status"; 5006 break; 5007 } 5008 pr_info(MPT3SAS_FMT "sas topology change: (%s)\n", 5009 ioc->name, status_str); 5010 pr_info("\thandle(0x%04x), enclosure_handle(0x%04x) " \ 5011 "start_phy(%02d), count(%d)\n", 5012 le16_to_cpu(event_data->ExpanderDevHandle), 5013 le16_to_cpu(event_data->EnclosureHandle), 5014 event_data->StartPhyNum, event_data->NumEntries); 5015 for (i = 0; i < event_data->NumEntries; i++) { 5016 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle); 5017 if (!handle) 5018 continue; 5019 phy_number = event_data->StartPhyNum + i; 5020 reason_code = event_data->PHY[i].PhyStatus & 5021 MPI2_EVENT_SAS_TOPO_RC_MASK; 5022 switch (reason_code) { 5023 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED: 5024 status_str = "target add"; 5025 break; 5026 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING: 5027 status_str = "target remove"; 5028 break; 5029 case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING: 5030 status_str = "delay target remove"; 5031 break; 5032 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED: 5033 status_str = "link rate change"; 5034 break; 5035 case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE: 5036 status_str = "target responding"; 5037 break; 5038 default: 5039 status_str = "unknown"; 5040 break; 5041 } 5042 link_rate = event_data->PHY[i].LinkRate >> 4; 5043 prev_link_rate = event_data->PHY[i].LinkRate & 0xF; 5044 pr_info("\tphy(%02d), attached_handle(0x%04x): %s:" \ 5045 " link rate: new(0x%02x), old(0x%02x)\n", phy_number, 5046 handle, status_str, link_rate, prev_link_rate); 5047 5048 } 5049 } 5050 #endif 5051 5052 /** 5053 * _scsih_sas_topology_change_event - handle topology changes 5054 * @ioc: per adapter object 5055 * @fw_event: The fw_event_work object 5056 * Context: user. 5057 * 5058 */ 5059 static int 5060 _scsih_sas_topology_change_event(struct MPT3SAS_ADAPTER *ioc, 5061 struct fw_event_work *fw_event) 5062 { 5063 int i; 5064 u16 parent_handle, handle; 5065 u16 reason_code; 5066 u8 phy_number, max_phys; 5067 struct _sas_node *sas_expander; 5068 u64 sas_address; 5069 unsigned long flags; 5070 u8 link_rate, prev_link_rate; 5071 Mpi2EventDataSasTopologyChangeList_t *event_data = 5072 (Mpi2EventDataSasTopologyChangeList_t *) 5073 fw_event->event_data; 5074 5075 #ifdef CONFIG_SCSI_MPT3SAS_LOGGING 5076 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) 5077 _scsih_sas_topology_change_event_debug(ioc, event_data); 5078 #endif 5079 5080 if (ioc->shost_recovery || ioc->remove_host || ioc->pci_error_recovery) 5081 return 0; 5082 5083 if (!ioc->sas_hba.num_phys) 5084 _scsih_sas_host_add(ioc); 5085 else 5086 _scsih_sas_host_refresh(ioc); 5087 5088 if (fw_event->ignore) { 5089 dewtprintk(ioc, pr_info(MPT3SAS_FMT 5090 "ignoring expander event\n", ioc->name)); 5091 return 0; 5092 } 5093 5094 parent_handle = le16_to_cpu(event_data->ExpanderDevHandle); 5095 5096 /* handle expander add */ 5097 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_ADDED) 5098 if (_scsih_expander_add(ioc, parent_handle) != 0) 5099 return 0; 5100 5101 spin_lock_irqsave(&ioc->sas_node_lock, flags); 5102 sas_expander = mpt3sas_scsih_expander_find_by_handle(ioc, 5103 parent_handle); 5104 if (sas_expander) { 5105 sas_address = sas_expander->sas_address; 5106 max_phys = sas_expander->num_phys; 5107 } else if (parent_handle < ioc->sas_hba.num_phys) { 5108 sas_address = ioc->sas_hba.sas_address; 5109 max_phys = ioc->sas_hba.num_phys; 5110 } else { 5111 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 5112 return 0; 5113 } 5114 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 5115 5116 /* handle siblings events */ 5117 for (i = 0; i < event_data->NumEntries; i++) { 5118 if (fw_event->ignore) { 5119 dewtprintk(ioc, pr_info(MPT3SAS_FMT 5120 "ignoring expander event\n", ioc->name)); 5121 return 0; 5122 } 5123 if (ioc->remove_host || ioc->pci_error_recovery) 5124 return 0; 5125 phy_number = event_data->StartPhyNum + i; 5126 if (phy_number >= max_phys) 5127 continue; 5128 reason_code = event_data->PHY[i].PhyStatus & 5129 MPI2_EVENT_SAS_TOPO_RC_MASK; 5130 if ((event_data->PHY[i].PhyStatus & 5131 MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT) && (reason_code != 5132 MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING)) 5133 continue; 5134 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle); 5135 if (!handle) 5136 continue; 5137 link_rate = event_data->PHY[i].LinkRate >> 4; 5138 prev_link_rate = event_data->PHY[i].LinkRate & 0xF; 5139 switch (reason_code) { 5140 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED: 5141 5142 if (ioc->shost_recovery) 5143 break; 5144 5145 if (link_rate == prev_link_rate) 5146 break; 5147 5148 mpt3sas_transport_update_links(ioc, sas_address, 5149 handle, phy_number, link_rate); 5150 5151 if (link_rate < MPI2_SAS_NEG_LINK_RATE_1_5) 5152 break; 5153 5154 _scsih_check_device(ioc, sas_address, handle, 5155 phy_number, link_rate); 5156 5157 5158 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED: 5159 5160 if (ioc->shost_recovery) 5161 break; 5162 5163 mpt3sas_transport_update_links(ioc, sas_address, 5164 handle, phy_number, link_rate); 5165 5166 _scsih_add_device(ioc, handle, phy_number, 0); 5167 5168 break; 5169 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING: 5170 5171 _scsih_device_remove_by_handle(ioc, handle); 5172 break; 5173 } 5174 } 5175 5176 /* handle expander removal */ 5177 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING && 5178 sas_expander) 5179 mpt3sas_expander_remove(ioc, sas_address); 5180 5181 return 0; 5182 } 5183 5184 #ifdef CONFIG_SCSI_MPT3SAS_LOGGING 5185 /** 5186 * _scsih_sas_device_status_change_event_debug - debug for device event 5187 * @event_data: event data payload 5188 * Context: user. 5189 * 5190 * Return nothing. 5191 */ 5192 static void 5193 _scsih_sas_device_status_change_event_debug(struct MPT3SAS_ADAPTER *ioc, 5194 Mpi2EventDataSasDeviceStatusChange_t *event_data) 5195 { 5196 char *reason_str = NULL; 5197 5198 switch (event_data->ReasonCode) { 5199 case MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA: 5200 reason_str = "smart data"; 5201 break; 5202 case MPI2_EVENT_SAS_DEV_STAT_RC_UNSUPPORTED: 5203 reason_str = "unsupported device discovered"; 5204 break; 5205 case MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET: 5206 reason_str = "internal device reset"; 5207 break; 5208 case MPI2_EVENT_SAS_DEV_STAT_RC_TASK_ABORT_INTERNAL: 5209 reason_str = "internal task abort"; 5210 break; 5211 case MPI2_EVENT_SAS_DEV_STAT_RC_ABORT_TASK_SET_INTERNAL: 5212 reason_str = "internal task abort set"; 5213 break; 5214 case MPI2_EVENT_SAS_DEV_STAT_RC_CLEAR_TASK_SET_INTERNAL: 5215 reason_str = "internal clear task set"; 5216 break; 5217 case MPI2_EVENT_SAS_DEV_STAT_RC_QUERY_TASK_INTERNAL: 5218 reason_str = "internal query task"; 5219 break; 5220 case MPI2_EVENT_SAS_DEV_STAT_RC_SATA_INIT_FAILURE: 5221 reason_str = "sata init failure"; 5222 break; 5223 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET: 5224 reason_str = "internal device reset complete"; 5225 break; 5226 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_TASK_ABORT_INTERNAL: 5227 reason_str = "internal task abort complete"; 5228 break; 5229 case MPI2_EVENT_SAS_DEV_STAT_RC_ASYNC_NOTIFICATION: 5230 reason_str = "internal async notification"; 5231 break; 5232 case MPI2_EVENT_SAS_DEV_STAT_RC_EXPANDER_REDUCED_FUNCTIONALITY: 5233 reason_str = "expander reduced functionality"; 5234 break; 5235 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_EXPANDER_REDUCED_FUNCTIONALITY: 5236 reason_str = "expander reduced functionality complete"; 5237 break; 5238 default: 5239 reason_str = "unknown reason"; 5240 break; 5241 } 5242 pr_info(MPT3SAS_FMT "device status change: (%s)\n" 5243 "\thandle(0x%04x), sas address(0x%016llx), tag(%d)", 5244 ioc->name, reason_str, le16_to_cpu(event_data->DevHandle), 5245 (unsigned long long)le64_to_cpu(event_data->SASAddress), 5246 le16_to_cpu(event_data->TaskTag)); 5247 if (event_data->ReasonCode == MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA) 5248 pr_info(MPT3SAS_FMT ", ASC(0x%x), ASCQ(0x%x)\n", ioc->name, 5249 event_data->ASC, event_data->ASCQ); 5250 pr_info("\n"); 5251 } 5252 #endif 5253 5254 /** 5255 * _scsih_sas_device_status_change_event - handle device status change 5256 * @ioc: per adapter object 5257 * @fw_event: The fw_event_work object 5258 * Context: user. 5259 * 5260 * Return nothing. 5261 */ 5262 static void 5263 _scsih_sas_device_status_change_event(struct MPT3SAS_ADAPTER *ioc, 5264 struct fw_event_work *fw_event) 5265 { 5266 struct MPT3SAS_TARGET *target_priv_data; 5267 struct _sas_device *sas_device; 5268 u64 sas_address; 5269 unsigned long flags; 5270 Mpi2EventDataSasDeviceStatusChange_t *event_data = 5271 (Mpi2EventDataSasDeviceStatusChange_t *) 5272 fw_event->event_data; 5273 5274 #ifdef CONFIG_SCSI_MPT3SAS_LOGGING 5275 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) 5276 _scsih_sas_device_status_change_event_debug(ioc, 5277 event_data); 5278 #endif 5279 5280 /* In MPI Revision K (0xC), the internal device reset complete was 5281 * implemented, so avoid setting tm_busy flag for older firmware. 5282 */ 5283 if ((ioc->facts.HeaderVersion >> 8) < 0xC) 5284 return; 5285 5286 if (event_data->ReasonCode != 5287 MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET && 5288 event_data->ReasonCode != 5289 MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET) 5290 return; 5291 5292 spin_lock_irqsave(&ioc->sas_device_lock, flags); 5293 sas_address = le64_to_cpu(event_data->SASAddress); 5294 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, 5295 sas_address); 5296 5297 if (!sas_device || !sas_device->starget) { 5298 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 5299 return; 5300 } 5301 5302 target_priv_data = sas_device->starget->hostdata; 5303 if (!target_priv_data) { 5304 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 5305 return; 5306 } 5307 5308 if (event_data->ReasonCode == 5309 MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET) 5310 target_priv_data->tm_busy = 1; 5311 else 5312 target_priv_data->tm_busy = 0; 5313 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 5314 } 5315 5316 #ifdef CONFIG_SCSI_MPT3SAS_LOGGING 5317 /** 5318 * _scsih_sas_enclosure_dev_status_change_event_debug - debug for enclosure 5319 * event 5320 * @ioc: per adapter object 5321 * @event_data: event data payload 5322 * Context: user. 5323 * 5324 * Return nothing. 5325 */ 5326 static void 5327 _scsih_sas_enclosure_dev_status_change_event_debug(struct MPT3SAS_ADAPTER *ioc, 5328 Mpi2EventDataSasEnclDevStatusChange_t *event_data) 5329 { 5330 char *reason_str = NULL; 5331 5332 switch (event_data->ReasonCode) { 5333 case MPI2_EVENT_SAS_ENCL_RC_ADDED: 5334 reason_str = "enclosure add"; 5335 break; 5336 case MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING: 5337 reason_str = "enclosure remove"; 5338 break; 5339 default: 5340 reason_str = "unknown reason"; 5341 break; 5342 } 5343 5344 pr_info(MPT3SAS_FMT "enclosure status change: (%s)\n" 5345 "\thandle(0x%04x), enclosure logical id(0x%016llx)" 5346 " number slots(%d)\n", ioc->name, reason_str, 5347 le16_to_cpu(event_data->EnclosureHandle), 5348 (unsigned long long)le64_to_cpu(event_data->EnclosureLogicalID), 5349 le16_to_cpu(event_data->StartSlot)); 5350 } 5351 #endif 5352 5353 /** 5354 * _scsih_sas_enclosure_dev_status_change_event - handle enclosure events 5355 * @ioc: per adapter object 5356 * @fw_event: The fw_event_work object 5357 * Context: user. 5358 * 5359 * Return nothing. 5360 */ 5361 static void 5362 _scsih_sas_enclosure_dev_status_change_event(struct MPT3SAS_ADAPTER *ioc, 5363 struct fw_event_work *fw_event) 5364 { 5365 #ifdef CONFIG_SCSI_MPT3SAS_LOGGING 5366 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) 5367 _scsih_sas_enclosure_dev_status_change_event_debug(ioc, 5368 (Mpi2EventDataSasEnclDevStatusChange_t *) 5369 fw_event->event_data); 5370 #endif 5371 } 5372 5373 /** 5374 * _scsih_sas_broadcast_primitive_event - handle broadcast events 5375 * @ioc: per adapter object 5376 * @fw_event: The fw_event_work object 5377 * Context: user. 5378 * 5379 * Return nothing. 5380 */ 5381 static void 5382 _scsih_sas_broadcast_primitive_event(struct MPT3SAS_ADAPTER *ioc, 5383 struct fw_event_work *fw_event) 5384 { 5385 struct scsi_cmnd *scmd; 5386 struct scsi_device *sdev; 5387 u16 smid, handle; 5388 u32 lun; 5389 struct MPT3SAS_DEVICE *sas_device_priv_data; 5390 u32 termination_count; 5391 u32 query_count; 5392 Mpi2SCSITaskManagementReply_t *mpi_reply; 5393 Mpi2EventDataSasBroadcastPrimitive_t *event_data = 5394 (Mpi2EventDataSasBroadcastPrimitive_t *) 5395 fw_event->event_data; 5396 u16 ioc_status; 5397 unsigned long flags; 5398 int r; 5399 u8 max_retries = 0; 5400 u8 task_abort_retries; 5401 5402 mutex_lock(&ioc->tm_cmds.mutex); 5403 pr_info(MPT3SAS_FMT 5404 "%s: enter: phy number(%d), width(%d)\n", 5405 ioc->name, __func__, event_data->PhyNum, 5406 event_data->PortWidth); 5407 5408 _scsih_block_io_all_device(ioc); 5409 5410 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 5411 mpi_reply = ioc->tm_cmds.reply; 5412 broadcast_aen_retry: 5413 5414 /* sanity checks for retrying this loop */ 5415 if (max_retries++ == 5) { 5416 dewtprintk(ioc, pr_info(MPT3SAS_FMT "%s: giving up\n", 5417 ioc->name, __func__)); 5418 goto out; 5419 } else if (max_retries > 1) 5420 dewtprintk(ioc, pr_info(MPT3SAS_FMT "%s: %d retry\n", 5421 ioc->name, __func__, max_retries - 1)); 5422 5423 termination_count = 0; 5424 query_count = 0; 5425 for (smid = 1; smid <= ioc->scsiio_depth; smid++) { 5426 if (ioc->shost_recovery) 5427 goto out; 5428 scmd = _scsih_scsi_lookup_get(ioc, smid); 5429 if (!scmd) 5430 continue; 5431 sdev = scmd->device; 5432 sas_device_priv_data = sdev->hostdata; 5433 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) 5434 continue; 5435 /* skip hidden raid components */ 5436 if (sas_device_priv_data->sas_target->flags & 5437 MPT_TARGET_FLAGS_RAID_COMPONENT) 5438 continue; 5439 /* skip volumes */ 5440 if (sas_device_priv_data->sas_target->flags & 5441 MPT_TARGET_FLAGS_VOLUME) 5442 continue; 5443 5444 handle = sas_device_priv_data->sas_target->handle; 5445 lun = sas_device_priv_data->lun; 5446 query_count++; 5447 5448 if (ioc->shost_recovery) 5449 goto out; 5450 5451 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 5452 r = mpt3sas_scsih_issue_tm(ioc, handle, 0, 0, lun, 5453 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30, 5454 TM_MUTEX_OFF); 5455 if (r == FAILED) { 5456 sdev_printk(KERN_WARNING, sdev, 5457 "mpt3sas_scsih_issue_tm: FAILED when sending " 5458 "QUERY_TASK: scmd(%p)\n", scmd); 5459 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 5460 goto broadcast_aen_retry; 5461 } 5462 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) 5463 & MPI2_IOCSTATUS_MASK; 5464 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 5465 sdev_printk(KERN_WARNING, sdev, 5466 "query task: FAILED with IOCSTATUS(0x%04x), scmd(%p)\n", 5467 ioc_status, scmd); 5468 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 5469 goto broadcast_aen_retry; 5470 } 5471 5472 /* see if IO is still owned by IOC and target */ 5473 if (mpi_reply->ResponseCode == 5474 MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED || 5475 mpi_reply->ResponseCode == 5476 MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC) { 5477 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 5478 continue; 5479 } 5480 task_abort_retries = 0; 5481 tm_retry: 5482 if (task_abort_retries++ == 60) { 5483 dewtprintk(ioc, pr_info(MPT3SAS_FMT 5484 "%s: ABORT_TASK: giving up\n", ioc->name, 5485 __func__)); 5486 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 5487 goto broadcast_aen_retry; 5488 } 5489 5490 if (ioc->shost_recovery) 5491 goto out_no_lock; 5492 5493 r = mpt3sas_scsih_issue_tm(ioc, handle, sdev->channel, sdev->id, 5494 sdev->lun, MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30, 5495 TM_MUTEX_OFF); 5496 if (r == FAILED) { 5497 sdev_printk(KERN_WARNING, sdev, 5498 "mpt3sas_scsih_issue_tm: ABORT_TASK: FAILED : " 5499 "scmd(%p)\n", scmd); 5500 goto tm_retry; 5501 } 5502 5503 if (task_abort_retries > 1) 5504 sdev_printk(KERN_WARNING, sdev, 5505 "mpt3sas_scsih_issue_tm: ABORT_TASK: RETRIES (%d):" 5506 " scmd(%p)\n", 5507 task_abort_retries - 1, scmd); 5508 5509 termination_count += le32_to_cpu(mpi_reply->TerminationCount); 5510 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 5511 } 5512 5513 if (ioc->broadcast_aen_pending) { 5514 dewtprintk(ioc, pr_info(MPT3SAS_FMT 5515 "%s: loop back due to pending AEN\n", 5516 ioc->name, __func__)); 5517 ioc->broadcast_aen_pending = 0; 5518 goto broadcast_aen_retry; 5519 } 5520 5521 out: 5522 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 5523 out_no_lock: 5524 5525 dewtprintk(ioc, pr_info(MPT3SAS_FMT 5526 "%s - exit, query_count = %d termination_count = %d\n", 5527 ioc->name, __func__, query_count, termination_count)); 5528 5529 ioc->broadcast_aen_busy = 0; 5530 if (!ioc->shost_recovery) 5531 _scsih_ublock_io_all_device(ioc); 5532 mutex_unlock(&ioc->tm_cmds.mutex); 5533 } 5534 5535 /** 5536 * _scsih_sas_discovery_event - handle discovery events 5537 * @ioc: per adapter object 5538 * @fw_event: The fw_event_work object 5539 * Context: user. 5540 * 5541 * Return nothing. 5542 */ 5543 static void 5544 _scsih_sas_discovery_event(struct MPT3SAS_ADAPTER *ioc, 5545 struct fw_event_work *fw_event) 5546 { 5547 Mpi2EventDataSasDiscovery_t *event_data = 5548 (Mpi2EventDataSasDiscovery_t *) fw_event->event_data; 5549 5550 #ifdef CONFIG_SCSI_MPT3SAS_LOGGING 5551 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) { 5552 pr_info(MPT3SAS_FMT "discovery event: (%s)", ioc->name, 5553 (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ? 5554 "start" : "stop"); 5555 if (event_data->DiscoveryStatus) 5556 pr_info("discovery_status(0x%08x)", 5557 le32_to_cpu(event_data->DiscoveryStatus)); 5558 pr_info("\n"); 5559 } 5560 #endif 5561 5562 if (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED && 5563 !ioc->sas_hba.num_phys) { 5564 if (disable_discovery > 0 && ioc->shost_recovery) { 5565 /* Wait for the reset to complete */ 5566 while (ioc->shost_recovery) 5567 ssleep(1); 5568 } 5569 _scsih_sas_host_add(ioc); 5570 } 5571 } 5572 5573 /** 5574 * _scsih_ir_fastpath - turn on fastpath for IR physdisk 5575 * @ioc: per adapter object 5576 * @handle: device handle for physical disk 5577 * @phys_disk_num: physical disk number 5578 * 5579 * Return 0 for success, else failure. 5580 */ 5581 static int 5582 _scsih_ir_fastpath(struct MPT3SAS_ADAPTER *ioc, u16 handle, u8 phys_disk_num) 5583 { 5584 Mpi2RaidActionRequest_t *mpi_request; 5585 Mpi2RaidActionReply_t *mpi_reply; 5586 u16 smid; 5587 u8 issue_reset = 0; 5588 int rc = 0; 5589 u16 ioc_status; 5590 u32 log_info; 5591 5592 5593 mutex_lock(&ioc->scsih_cmds.mutex); 5594 5595 if (ioc->scsih_cmds.status != MPT3_CMD_NOT_USED) { 5596 pr_err(MPT3SAS_FMT "%s: scsih_cmd in use\n", 5597 ioc->name, __func__); 5598 rc = -EAGAIN; 5599 goto out; 5600 } 5601 ioc->scsih_cmds.status = MPT3_CMD_PENDING; 5602 5603 smid = mpt3sas_base_get_smid(ioc, ioc->scsih_cb_idx); 5604 if (!smid) { 5605 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n", 5606 ioc->name, __func__); 5607 ioc->scsih_cmds.status = MPT3_CMD_NOT_USED; 5608 rc = -EAGAIN; 5609 goto out; 5610 } 5611 5612 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 5613 ioc->scsih_cmds.smid = smid; 5614 memset(mpi_request, 0, sizeof(Mpi2RaidActionRequest_t)); 5615 5616 mpi_request->Function = MPI2_FUNCTION_RAID_ACTION; 5617 mpi_request->Action = MPI2_RAID_ACTION_PHYSDISK_HIDDEN; 5618 mpi_request->PhysDiskNum = phys_disk_num; 5619 5620 dewtprintk(ioc, pr_info(MPT3SAS_FMT "IR RAID_ACTION: turning fast "\ 5621 "path on for handle(0x%04x), phys_disk_num (0x%02x)\n", ioc->name, 5622 handle, phys_disk_num)); 5623 5624 init_completion(&ioc->scsih_cmds.done); 5625 mpt3sas_base_put_smid_default(ioc, smid); 5626 wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ); 5627 5628 if (!(ioc->scsih_cmds.status & MPT3_CMD_COMPLETE)) { 5629 pr_err(MPT3SAS_FMT "%s: timeout\n", 5630 ioc->name, __func__); 5631 if (!(ioc->scsih_cmds.status & MPT3_CMD_RESET)) 5632 issue_reset = 1; 5633 rc = -EFAULT; 5634 goto out; 5635 } 5636 5637 if (ioc->scsih_cmds.status & MPT3_CMD_REPLY_VALID) { 5638 5639 mpi_reply = ioc->scsih_cmds.reply; 5640 ioc_status = le16_to_cpu(mpi_reply->IOCStatus); 5641 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE) 5642 log_info = le32_to_cpu(mpi_reply->IOCLogInfo); 5643 else 5644 log_info = 0; 5645 ioc_status &= MPI2_IOCSTATUS_MASK; 5646 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 5647 dewtprintk(ioc, pr_info(MPT3SAS_FMT 5648 "IR RAID_ACTION: failed: ioc_status(0x%04x), " 5649 "loginfo(0x%08x)!!!\n", ioc->name, ioc_status, 5650 log_info)); 5651 rc = -EFAULT; 5652 } else 5653 dewtprintk(ioc, pr_info(MPT3SAS_FMT 5654 "IR RAID_ACTION: completed successfully\n", 5655 ioc->name)); 5656 } 5657 5658 out: 5659 ioc->scsih_cmds.status = MPT3_CMD_NOT_USED; 5660 mutex_unlock(&ioc->scsih_cmds.mutex); 5661 5662 if (issue_reset) 5663 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP, 5664 FORCE_BIG_HAMMER); 5665 return rc; 5666 } 5667 5668 /** 5669 * _scsih_reprobe_lun - reprobing lun 5670 * @sdev: scsi device struct 5671 * @no_uld_attach: sdev->no_uld_attach flag setting 5672 * 5673 **/ 5674 static void 5675 _scsih_reprobe_lun(struct scsi_device *sdev, void *no_uld_attach) 5676 { 5677 int rc; 5678 sdev->no_uld_attach = no_uld_attach ? 1 : 0; 5679 sdev_printk(KERN_INFO, sdev, "%s raid component\n", 5680 sdev->no_uld_attach ? "hidding" : "exposing"); 5681 rc = scsi_device_reprobe(sdev); 5682 } 5683 5684 /** 5685 * _scsih_sas_volume_add - add new volume 5686 * @ioc: per adapter object 5687 * @element: IR config element data 5688 * Context: user. 5689 * 5690 * Return nothing. 5691 */ 5692 static void 5693 _scsih_sas_volume_add(struct MPT3SAS_ADAPTER *ioc, 5694 Mpi2EventIrConfigElement_t *element) 5695 { 5696 struct _raid_device *raid_device; 5697 unsigned long flags; 5698 u64 wwid; 5699 u16 handle = le16_to_cpu(element->VolDevHandle); 5700 int rc; 5701 5702 mpt3sas_config_get_volume_wwid(ioc, handle, &wwid); 5703 if (!wwid) { 5704 pr_err(MPT3SAS_FMT 5705 "failure at %s:%d/%s()!\n", ioc->name, 5706 __FILE__, __LINE__, __func__); 5707 return; 5708 } 5709 5710 spin_lock_irqsave(&ioc->raid_device_lock, flags); 5711 raid_device = _scsih_raid_device_find_by_wwid(ioc, wwid); 5712 spin_unlock_irqrestore(&ioc->raid_device_lock, flags); 5713 5714 if (raid_device) 5715 return; 5716 5717 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL); 5718 if (!raid_device) { 5719 pr_err(MPT3SAS_FMT 5720 "failure at %s:%d/%s()!\n", ioc->name, 5721 __FILE__, __LINE__, __func__); 5722 return; 5723 } 5724 5725 raid_device->id = ioc->sas_id++; 5726 raid_device->channel = RAID_CHANNEL; 5727 raid_device->handle = handle; 5728 raid_device->wwid = wwid; 5729 _scsih_raid_device_add(ioc, raid_device); 5730 if (!ioc->wait_for_discovery_to_complete) { 5731 rc = scsi_add_device(ioc->shost, RAID_CHANNEL, 5732 raid_device->id, 0); 5733 if (rc) 5734 _scsih_raid_device_remove(ioc, raid_device); 5735 } else { 5736 spin_lock_irqsave(&ioc->raid_device_lock, flags); 5737 _scsih_determine_boot_device(ioc, raid_device, 1); 5738 spin_unlock_irqrestore(&ioc->raid_device_lock, flags); 5739 } 5740 } 5741 5742 /** 5743 * _scsih_sas_volume_delete - delete volume 5744 * @ioc: per adapter object 5745 * @handle: volume device handle 5746 * Context: user. 5747 * 5748 * Return nothing. 5749 */ 5750 static void 5751 _scsih_sas_volume_delete(struct MPT3SAS_ADAPTER *ioc, u16 handle) 5752 { 5753 struct _raid_device *raid_device; 5754 unsigned long flags; 5755 struct MPT3SAS_TARGET *sas_target_priv_data; 5756 struct scsi_target *starget = NULL; 5757 5758 spin_lock_irqsave(&ioc->raid_device_lock, flags); 5759 raid_device = _scsih_raid_device_find_by_handle(ioc, handle); 5760 if (raid_device) { 5761 if (raid_device->starget) { 5762 starget = raid_device->starget; 5763 sas_target_priv_data = starget->hostdata; 5764 sas_target_priv_data->deleted = 1; 5765 } 5766 pr_info(MPT3SAS_FMT "removing handle(0x%04x), wwid(0x%016llx)\n", 5767 ioc->name, raid_device->handle, 5768 (unsigned long long) raid_device->wwid); 5769 list_del(&raid_device->list); 5770 kfree(raid_device); 5771 } 5772 spin_unlock_irqrestore(&ioc->raid_device_lock, flags); 5773 if (starget) 5774 scsi_remove_target(&starget->dev); 5775 } 5776 5777 /** 5778 * _scsih_sas_pd_expose - expose pd component to /dev/sdX 5779 * @ioc: per adapter object 5780 * @element: IR config element data 5781 * Context: user. 5782 * 5783 * Return nothing. 5784 */ 5785 static void 5786 _scsih_sas_pd_expose(struct MPT3SAS_ADAPTER *ioc, 5787 Mpi2EventIrConfigElement_t *element) 5788 { 5789 struct _sas_device *sas_device; 5790 struct scsi_target *starget = NULL; 5791 struct MPT3SAS_TARGET *sas_target_priv_data; 5792 unsigned long flags; 5793 u16 handle = le16_to_cpu(element->PhysDiskDevHandle); 5794 5795 spin_lock_irqsave(&ioc->sas_device_lock, flags); 5796 sas_device = _scsih_sas_device_find_by_handle(ioc, handle); 5797 if (sas_device) { 5798 sas_device->volume_handle = 0; 5799 sas_device->volume_wwid = 0; 5800 clear_bit(handle, ioc->pd_handles); 5801 if (sas_device->starget && sas_device->starget->hostdata) { 5802 starget = sas_device->starget; 5803 sas_target_priv_data = starget->hostdata; 5804 sas_target_priv_data->flags &= 5805 ~MPT_TARGET_FLAGS_RAID_COMPONENT; 5806 } 5807 } 5808 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 5809 if (!sas_device) 5810 return; 5811 5812 /* exposing raid component */ 5813 if (starget) 5814 starget_for_each_device(starget, NULL, _scsih_reprobe_lun); 5815 } 5816 5817 /** 5818 * _scsih_sas_pd_hide - hide pd component from /dev/sdX 5819 * @ioc: per adapter object 5820 * @element: IR config element data 5821 * Context: user. 5822 * 5823 * Return nothing. 5824 */ 5825 static void 5826 _scsih_sas_pd_hide(struct MPT3SAS_ADAPTER *ioc, 5827 Mpi2EventIrConfigElement_t *element) 5828 { 5829 struct _sas_device *sas_device; 5830 struct scsi_target *starget = NULL; 5831 struct MPT3SAS_TARGET *sas_target_priv_data; 5832 unsigned long flags; 5833 u16 handle = le16_to_cpu(element->PhysDiskDevHandle); 5834 u16 volume_handle = 0; 5835 u64 volume_wwid = 0; 5836 5837 mpt3sas_config_get_volume_handle(ioc, handle, &volume_handle); 5838 if (volume_handle) 5839 mpt3sas_config_get_volume_wwid(ioc, volume_handle, 5840 &volume_wwid); 5841 5842 spin_lock_irqsave(&ioc->sas_device_lock, flags); 5843 sas_device = _scsih_sas_device_find_by_handle(ioc, handle); 5844 if (sas_device) { 5845 set_bit(handle, ioc->pd_handles); 5846 if (sas_device->starget && sas_device->starget->hostdata) { 5847 starget = sas_device->starget; 5848 sas_target_priv_data = starget->hostdata; 5849 sas_target_priv_data->flags |= 5850 MPT_TARGET_FLAGS_RAID_COMPONENT; 5851 sas_device->volume_handle = volume_handle; 5852 sas_device->volume_wwid = volume_wwid; 5853 } 5854 } 5855 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 5856 if (!sas_device) 5857 return; 5858 5859 /* hiding raid component */ 5860 _scsih_ir_fastpath(ioc, handle, element->PhysDiskNum); 5861 if (starget) 5862 starget_for_each_device(starget, (void *)1, _scsih_reprobe_lun); 5863 } 5864 5865 /** 5866 * _scsih_sas_pd_delete - delete pd component 5867 * @ioc: per adapter object 5868 * @element: IR config element data 5869 * Context: user. 5870 * 5871 * Return nothing. 5872 */ 5873 static void 5874 _scsih_sas_pd_delete(struct MPT3SAS_ADAPTER *ioc, 5875 Mpi2EventIrConfigElement_t *element) 5876 { 5877 u16 handle = le16_to_cpu(element->PhysDiskDevHandle); 5878 5879 _scsih_device_remove_by_handle(ioc, handle); 5880 } 5881 5882 /** 5883 * _scsih_sas_pd_add - remove pd component 5884 * @ioc: per adapter object 5885 * @element: IR config element data 5886 * Context: user. 5887 * 5888 * Return nothing. 5889 */ 5890 static void 5891 _scsih_sas_pd_add(struct MPT3SAS_ADAPTER *ioc, 5892 Mpi2EventIrConfigElement_t *element) 5893 { 5894 struct _sas_device *sas_device; 5895 unsigned long flags; 5896 u16 handle = le16_to_cpu(element->PhysDiskDevHandle); 5897 Mpi2ConfigReply_t mpi_reply; 5898 Mpi2SasDevicePage0_t sas_device_pg0; 5899 u32 ioc_status; 5900 u64 sas_address; 5901 u16 parent_handle; 5902 5903 set_bit(handle, ioc->pd_handles); 5904 5905 spin_lock_irqsave(&ioc->sas_device_lock, flags); 5906 sas_device = _scsih_sas_device_find_by_handle(ioc, handle); 5907 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 5908 if (sas_device) { 5909 _scsih_ir_fastpath(ioc, handle, element->PhysDiskNum); 5910 return; 5911 } 5912 5913 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0, 5914 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) { 5915 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 5916 ioc->name, __FILE__, __LINE__, __func__); 5917 return; 5918 } 5919 5920 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 5921 MPI2_IOCSTATUS_MASK; 5922 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 5923 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 5924 ioc->name, __FILE__, __LINE__, __func__); 5925 return; 5926 } 5927 5928 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle); 5929 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address)) 5930 mpt3sas_transport_update_links(ioc, sas_address, handle, 5931 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5); 5932 5933 _scsih_ir_fastpath(ioc, handle, element->PhysDiskNum); 5934 _scsih_add_device(ioc, handle, 0, 1); 5935 } 5936 5937 #ifdef CONFIG_SCSI_MPT3SAS_LOGGING 5938 /** 5939 * _scsih_sas_ir_config_change_event_debug - debug for IR Config Change events 5940 * @ioc: per adapter object 5941 * @event_data: event data payload 5942 * Context: user. 5943 * 5944 * Return nothing. 5945 */ 5946 static void 5947 _scsih_sas_ir_config_change_event_debug(struct MPT3SAS_ADAPTER *ioc, 5948 Mpi2EventDataIrConfigChangeList_t *event_data) 5949 { 5950 Mpi2EventIrConfigElement_t *element; 5951 u8 element_type; 5952 int i; 5953 char *reason_str = NULL, *element_str = NULL; 5954 5955 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0]; 5956 5957 pr_info(MPT3SAS_FMT "raid config change: (%s), elements(%d)\n", 5958 ioc->name, (le32_to_cpu(event_data->Flags) & 5959 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 5960 "foreign" : "native", event_data->NumElements); 5961 for (i = 0; i < event_data->NumElements; i++, element++) { 5962 switch (element->ReasonCode) { 5963 case MPI2_EVENT_IR_CHANGE_RC_ADDED: 5964 reason_str = "add"; 5965 break; 5966 case MPI2_EVENT_IR_CHANGE_RC_REMOVED: 5967 reason_str = "remove"; 5968 break; 5969 case MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE: 5970 reason_str = "no change"; 5971 break; 5972 case MPI2_EVENT_IR_CHANGE_RC_HIDE: 5973 reason_str = "hide"; 5974 break; 5975 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE: 5976 reason_str = "unhide"; 5977 break; 5978 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED: 5979 reason_str = "volume_created"; 5980 break; 5981 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED: 5982 reason_str = "volume_deleted"; 5983 break; 5984 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED: 5985 reason_str = "pd_created"; 5986 break; 5987 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED: 5988 reason_str = "pd_deleted"; 5989 break; 5990 default: 5991 reason_str = "unknown reason"; 5992 break; 5993 } 5994 element_type = le16_to_cpu(element->ElementFlags) & 5995 MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK; 5996 switch (element_type) { 5997 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT: 5998 element_str = "volume"; 5999 break; 6000 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT: 6001 element_str = "phys disk"; 6002 break; 6003 case MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT: 6004 element_str = "hot spare"; 6005 break; 6006 default: 6007 element_str = "unknown element"; 6008 break; 6009 } 6010 pr_info("\t(%s:%s), vol handle(0x%04x), " \ 6011 "pd handle(0x%04x), pd num(0x%02x)\n", element_str, 6012 reason_str, le16_to_cpu(element->VolDevHandle), 6013 le16_to_cpu(element->PhysDiskDevHandle), 6014 element->PhysDiskNum); 6015 } 6016 } 6017 #endif 6018 6019 /** 6020 * _scsih_sas_ir_config_change_event - handle ir configuration change events 6021 * @ioc: per adapter object 6022 * @fw_event: The fw_event_work object 6023 * Context: user. 6024 * 6025 * Return nothing. 6026 */ 6027 static void 6028 _scsih_sas_ir_config_change_event(struct MPT3SAS_ADAPTER *ioc, 6029 struct fw_event_work *fw_event) 6030 { 6031 Mpi2EventIrConfigElement_t *element; 6032 int i; 6033 u8 foreign_config; 6034 Mpi2EventDataIrConfigChangeList_t *event_data = 6035 (Mpi2EventDataIrConfigChangeList_t *) 6036 fw_event->event_data; 6037 6038 #ifdef CONFIG_SCSI_MPT3SAS_LOGGING 6039 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) 6040 _scsih_sas_ir_config_change_event_debug(ioc, event_data); 6041 6042 #endif 6043 6044 foreign_config = (le32_to_cpu(event_data->Flags) & 6045 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0; 6046 6047 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0]; 6048 if (ioc->shost_recovery) { 6049 6050 for (i = 0; i < event_data->NumElements; i++, element++) { 6051 if (element->ReasonCode == MPI2_EVENT_IR_CHANGE_RC_HIDE) 6052 _scsih_ir_fastpath(ioc, 6053 le16_to_cpu(element->PhysDiskDevHandle), 6054 element->PhysDiskNum); 6055 } 6056 return; 6057 } 6058 for (i = 0; i < event_data->NumElements; i++, element++) { 6059 6060 switch (element->ReasonCode) { 6061 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED: 6062 case MPI2_EVENT_IR_CHANGE_RC_ADDED: 6063 if (!foreign_config) 6064 _scsih_sas_volume_add(ioc, element); 6065 break; 6066 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED: 6067 case MPI2_EVENT_IR_CHANGE_RC_REMOVED: 6068 if (!foreign_config) 6069 _scsih_sas_volume_delete(ioc, 6070 le16_to_cpu(element->VolDevHandle)); 6071 break; 6072 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED: 6073 _scsih_sas_pd_hide(ioc, element); 6074 break; 6075 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED: 6076 _scsih_sas_pd_expose(ioc, element); 6077 break; 6078 case MPI2_EVENT_IR_CHANGE_RC_HIDE: 6079 _scsih_sas_pd_add(ioc, element); 6080 break; 6081 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE: 6082 _scsih_sas_pd_delete(ioc, element); 6083 break; 6084 } 6085 } 6086 } 6087 6088 /** 6089 * _scsih_sas_ir_volume_event - IR volume event 6090 * @ioc: per adapter object 6091 * @fw_event: The fw_event_work object 6092 * Context: user. 6093 * 6094 * Return nothing. 6095 */ 6096 static void 6097 _scsih_sas_ir_volume_event(struct MPT3SAS_ADAPTER *ioc, 6098 struct fw_event_work *fw_event) 6099 { 6100 u64 wwid; 6101 unsigned long flags; 6102 struct _raid_device *raid_device; 6103 u16 handle; 6104 u32 state; 6105 int rc; 6106 Mpi2EventDataIrVolume_t *event_data = 6107 (Mpi2EventDataIrVolume_t *) fw_event->event_data; 6108 6109 if (ioc->shost_recovery) 6110 return; 6111 6112 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED) 6113 return; 6114 6115 handle = le16_to_cpu(event_data->VolDevHandle); 6116 state = le32_to_cpu(event_data->NewValue); 6117 dewtprintk(ioc, pr_info(MPT3SAS_FMT 6118 "%s: handle(0x%04x), old(0x%08x), new(0x%08x)\n", 6119 ioc->name, __func__, handle, 6120 le32_to_cpu(event_data->PreviousValue), state)); 6121 switch (state) { 6122 case MPI2_RAID_VOL_STATE_MISSING: 6123 case MPI2_RAID_VOL_STATE_FAILED: 6124 _scsih_sas_volume_delete(ioc, handle); 6125 break; 6126 6127 case MPI2_RAID_VOL_STATE_ONLINE: 6128 case MPI2_RAID_VOL_STATE_DEGRADED: 6129 case MPI2_RAID_VOL_STATE_OPTIMAL: 6130 6131 spin_lock_irqsave(&ioc->raid_device_lock, flags); 6132 raid_device = _scsih_raid_device_find_by_handle(ioc, handle); 6133 spin_unlock_irqrestore(&ioc->raid_device_lock, flags); 6134 6135 if (raid_device) 6136 break; 6137 6138 mpt3sas_config_get_volume_wwid(ioc, handle, &wwid); 6139 if (!wwid) { 6140 pr_err(MPT3SAS_FMT 6141 "failure at %s:%d/%s()!\n", ioc->name, 6142 __FILE__, __LINE__, __func__); 6143 break; 6144 } 6145 6146 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL); 6147 if (!raid_device) { 6148 pr_err(MPT3SAS_FMT 6149 "failure at %s:%d/%s()!\n", ioc->name, 6150 __FILE__, __LINE__, __func__); 6151 break; 6152 } 6153 6154 raid_device->id = ioc->sas_id++; 6155 raid_device->channel = RAID_CHANNEL; 6156 raid_device->handle = handle; 6157 raid_device->wwid = wwid; 6158 _scsih_raid_device_add(ioc, raid_device); 6159 rc = scsi_add_device(ioc->shost, RAID_CHANNEL, 6160 raid_device->id, 0); 6161 if (rc) 6162 _scsih_raid_device_remove(ioc, raid_device); 6163 break; 6164 6165 case MPI2_RAID_VOL_STATE_INITIALIZING: 6166 default: 6167 break; 6168 } 6169 } 6170 6171 /** 6172 * _scsih_sas_ir_physical_disk_event - PD event 6173 * @ioc: per adapter object 6174 * @fw_event: The fw_event_work object 6175 * Context: user. 6176 * 6177 * Return nothing. 6178 */ 6179 static void 6180 _scsih_sas_ir_physical_disk_event(struct MPT3SAS_ADAPTER *ioc, 6181 struct fw_event_work *fw_event) 6182 { 6183 u16 handle, parent_handle; 6184 u32 state; 6185 struct _sas_device *sas_device; 6186 unsigned long flags; 6187 Mpi2ConfigReply_t mpi_reply; 6188 Mpi2SasDevicePage0_t sas_device_pg0; 6189 u32 ioc_status; 6190 Mpi2EventDataIrPhysicalDisk_t *event_data = 6191 (Mpi2EventDataIrPhysicalDisk_t *) fw_event->event_data; 6192 u64 sas_address; 6193 6194 if (ioc->shost_recovery) 6195 return; 6196 6197 if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED) 6198 return; 6199 6200 handle = le16_to_cpu(event_data->PhysDiskDevHandle); 6201 state = le32_to_cpu(event_data->NewValue); 6202 6203 dewtprintk(ioc, pr_info(MPT3SAS_FMT 6204 "%s: handle(0x%04x), old(0x%08x), new(0x%08x)\n", 6205 ioc->name, __func__, handle, 6206 le32_to_cpu(event_data->PreviousValue), state)); 6207 switch (state) { 6208 case MPI2_RAID_PD_STATE_ONLINE: 6209 case MPI2_RAID_PD_STATE_DEGRADED: 6210 case MPI2_RAID_PD_STATE_REBUILDING: 6211 case MPI2_RAID_PD_STATE_OPTIMAL: 6212 case MPI2_RAID_PD_STATE_HOT_SPARE: 6213 6214 set_bit(handle, ioc->pd_handles); 6215 spin_lock_irqsave(&ioc->sas_device_lock, flags); 6216 sas_device = _scsih_sas_device_find_by_handle(ioc, handle); 6217 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 6218 6219 if (sas_device) 6220 return; 6221 6222 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, 6223 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, 6224 handle))) { 6225 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 6226 ioc->name, __FILE__, __LINE__, __func__); 6227 return; 6228 } 6229 6230 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 6231 MPI2_IOCSTATUS_MASK; 6232 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 6233 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 6234 ioc->name, __FILE__, __LINE__, __func__); 6235 return; 6236 } 6237 6238 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle); 6239 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address)) 6240 mpt3sas_transport_update_links(ioc, sas_address, handle, 6241 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5); 6242 6243 _scsih_add_device(ioc, handle, 0, 1); 6244 6245 break; 6246 6247 case MPI2_RAID_PD_STATE_OFFLINE: 6248 case MPI2_RAID_PD_STATE_NOT_CONFIGURED: 6249 case MPI2_RAID_PD_STATE_NOT_COMPATIBLE: 6250 default: 6251 break; 6252 } 6253 } 6254 6255 #ifdef CONFIG_SCSI_MPT3SAS_LOGGING 6256 /** 6257 * _scsih_sas_ir_operation_status_event_debug - debug for IR op event 6258 * @ioc: per adapter object 6259 * @event_data: event data payload 6260 * Context: user. 6261 * 6262 * Return nothing. 6263 */ 6264 static void 6265 _scsih_sas_ir_operation_status_event_debug(struct MPT3SAS_ADAPTER *ioc, 6266 Mpi2EventDataIrOperationStatus_t *event_data) 6267 { 6268 char *reason_str = NULL; 6269 6270 switch (event_data->RAIDOperation) { 6271 case MPI2_EVENT_IR_RAIDOP_RESYNC: 6272 reason_str = "resync"; 6273 break; 6274 case MPI2_EVENT_IR_RAIDOP_ONLINE_CAP_EXPANSION: 6275 reason_str = "online capacity expansion"; 6276 break; 6277 case MPI2_EVENT_IR_RAIDOP_CONSISTENCY_CHECK: 6278 reason_str = "consistency check"; 6279 break; 6280 case MPI2_EVENT_IR_RAIDOP_BACKGROUND_INIT: 6281 reason_str = "background init"; 6282 break; 6283 case MPI2_EVENT_IR_RAIDOP_MAKE_DATA_CONSISTENT: 6284 reason_str = "make data consistent"; 6285 break; 6286 } 6287 6288 if (!reason_str) 6289 return; 6290 6291 pr_info(MPT3SAS_FMT "raid operational status: (%s)" \ 6292 "\thandle(0x%04x), percent complete(%d)\n", 6293 ioc->name, reason_str, 6294 le16_to_cpu(event_data->VolDevHandle), 6295 event_data->PercentComplete); 6296 } 6297 #endif 6298 6299 /** 6300 * _scsih_sas_ir_operation_status_event - handle RAID operation events 6301 * @ioc: per adapter object 6302 * @fw_event: The fw_event_work object 6303 * Context: user. 6304 * 6305 * Return nothing. 6306 */ 6307 static void 6308 _scsih_sas_ir_operation_status_event(struct MPT3SAS_ADAPTER *ioc, 6309 struct fw_event_work *fw_event) 6310 { 6311 Mpi2EventDataIrOperationStatus_t *event_data = 6312 (Mpi2EventDataIrOperationStatus_t *) 6313 fw_event->event_data; 6314 static struct _raid_device *raid_device; 6315 unsigned long flags; 6316 u16 handle; 6317 6318 #ifdef CONFIG_SCSI_MPT3SAS_LOGGING 6319 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) 6320 _scsih_sas_ir_operation_status_event_debug(ioc, 6321 event_data); 6322 #endif 6323 6324 /* code added for raid transport support */ 6325 if (event_data->RAIDOperation == MPI2_EVENT_IR_RAIDOP_RESYNC) { 6326 6327 spin_lock_irqsave(&ioc->raid_device_lock, flags); 6328 handle = le16_to_cpu(event_data->VolDevHandle); 6329 raid_device = _scsih_raid_device_find_by_handle(ioc, handle); 6330 if (raid_device) 6331 raid_device->percent_complete = 6332 event_data->PercentComplete; 6333 spin_unlock_irqrestore(&ioc->raid_device_lock, flags); 6334 } 6335 } 6336 6337 /** 6338 * _scsih_prep_device_scan - initialize parameters prior to device scan 6339 * @ioc: per adapter object 6340 * 6341 * Set the deleted flag prior to device scan. If the device is found during 6342 * the scan, then we clear the deleted flag. 6343 */ 6344 static void 6345 _scsih_prep_device_scan(struct MPT3SAS_ADAPTER *ioc) 6346 { 6347 struct MPT3SAS_DEVICE *sas_device_priv_data; 6348 struct scsi_device *sdev; 6349 6350 shost_for_each_device(sdev, ioc->shost) { 6351 sas_device_priv_data = sdev->hostdata; 6352 if (sas_device_priv_data && sas_device_priv_data->sas_target) 6353 sas_device_priv_data->sas_target->deleted = 1; 6354 } 6355 } 6356 6357 /** 6358 * _scsih_mark_responding_sas_device - mark a sas_devices as responding 6359 * @ioc: per adapter object 6360 * @sas_address: sas address 6361 * @slot: enclosure slot id 6362 * @handle: device handle 6363 * 6364 * After host reset, find out whether devices are still responding. 6365 * Used in _scsih_remove_unresponsive_sas_devices. 6366 * 6367 * Return nothing. 6368 */ 6369 static void 6370 _scsih_mark_responding_sas_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address, 6371 u16 slot, u16 handle) 6372 { 6373 struct MPT3SAS_TARGET *sas_target_priv_data = NULL; 6374 struct scsi_target *starget; 6375 struct _sas_device *sas_device; 6376 unsigned long flags; 6377 6378 spin_lock_irqsave(&ioc->sas_device_lock, flags); 6379 list_for_each_entry(sas_device, &ioc->sas_device_list, list) { 6380 if (sas_device->sas_address == sas_address && 6381 sas_device->slot == slot) { 6382 sas_device->responding = 1; 6383 starget = sas_device->starget; 6384 if (starget && starget->hostdata) { 6385 sas_target_priv_data = starget->hostdata; 6386 sas_target_priv_data->tm_busy = 0; 6387 sas_target_priv_data->deleted = 0; 6388 } else 6389 sas_target_priv_data = NULL; 6390 if (starget) 6391 starget_printk(KERN_INFO, starget, 6392 "handle(0x%04x), sas_addr(0x%016llx), " 6393 "enclosure logical id(0x%016llx), " 6394 "slot(%d)\n", handle, 6395 (unsigned long long)sas_device->sas_address, 6396 (unsigned long long) 6397 sas_device->enclosure_logical_id, 6398 sas_device->slot); 6399 if (sas_device->handle == handle) 6400 goto out; 6401 pr_info("\thandle changed from(0x%04x)!!!\n", 6402 sas_device->handle); 6403 sas_device->handle = handle; 6404 if (sas_target_priv_data) 6405 sas_target_priv_data->handle = handle; 6406 goto out; 6407 } 6408 } 6409 out: 6410 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 6411 } 6412 6413 /** 6414 * _scsih_search_responding_sas_devices - 6415 * @ioc: per adapter object 6416 * 6417 * After host reset, find out whether devices are still responding. 6418 * If not remove. 6419 * 6420 * Return nothing. 6421 */ 6422 static void 6423 _scsih_search_responding_sas_devices(struct MPT3SAS_ADAPTER *ioc) 6424 { 6425 Mpi2SasDevicePage0_t sas_device_pg0; 6426 Mpi2ConfigReply_t mpi_reply; 6427 u16 ioc_status; 6428 u16 handle; 6429 u32 device_info; 6430 6431 pr_info(MPT3SAS_FMT "search for end-devices: start\n", ioc->name); 6432 6433 if (list_empty(&ioc->sas_device_list)) 6434 goto out; 6435 6436 handle = 0xFFFF; 6437 while (!(mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, 6438 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE, 6439 handle))) { 6440 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 6441 MPI2_IOCSTATUS_MASK; 6442 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) 6443 break; 6444 handle = le16_to_cpu(sas_device_pg0.DevHandle); 6445 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo); 6446 if (!(_scsih_is_end_device(device_info))) 6447 continue; 6448 _scsih_mark_responding_sas_device(ioc, 6449 le64_to_cpu(sas_device_pg0.SASAddress), 6450 le16_to_cpu(sas_device_pg0.Slot), handle); 6451 } 6452 6453 out: 6454 pr_info(MPT3SAS_FMT "search for end-devices: complete\n", 6455 ioc->name); 6456 } 6457 6458 /** 6459 * _scsih_mark_responding_raid_device - mark a raid_device as responding 6460 * @ioc: per adapter object 6461 * @wwid: world wide identifier for raid volume 6462 * @handle: device handle 6463 * 6464 * After host reset, find out whether devices are still responding. 6465 * Used in _scsih_remove_unresponsive_raid_devices. 6466 * 6467 * Return nothing. 6468 */ 6469 static void 6470 _scsih_mark_responding_raid_device(struct MPT3SAS_ADAPTER *ioc, u64 wwid, 6471 u16 handle) 6472 { 6473 struct MPT3SAS_TARGET *sas_target_priv_data; 6474 struct scsi_target *starget; 6475 struct _raid_device *raid_device; 6476 unsigned long flags; 6477 6478 spin_lock_irqsave(&ioc->raid_device_lock, flags); 6479 list_for_each_entry(raid_device, &ioc->raid_device_list, list) { 6480 if (raid_device->wwid == wwid && raid_device->starget) { 6481 starget = raid_device->starget; 6482 if (starget && starget->hostdata) { 6483 sas_target_priv_data = starget->hostdata; 6484 sas_target_priv_data->deleted = 0; 6485 } else 6486 sas_target_priv_data = NULL; 6487 raid_device->responding = 1; 6488 spin_unlock_irqrestore(&ioc->raid_device_lock, flags); 6489 starget_printk(KERN_INFO, raid_device->starget, 6490 "handle(0x%04x), wwid(0x%016llx)\n", handle, 6491 (unsigned long long)raid_device->wwid); 6492 spin_lock_irqsave(&ioc->raid_device_lock, flags); 6493 if (raid_device->handle == handle) { 6494 spin_unlock_irqrestore(&ioc->raid_device_lock, 6495 flags); 6496 return; 6497 } 6498 pr_info("\thandle changed from(0x%04x)!!!\n", 6499 raid_device->handle); 6500 raid_device->handle = handle; 6501 if (sas_target_priv_data) 6502 sas_target_priv_data->handle = handle; 6503 spin_unlock_irqrestore(&ioc->raid_device_lock, flags); 6504 return; 6505 } 6506 } 6507 spin_unlock_irqrestore(&ioc->raid_device_lock, flags); 6508 } 6509 6510 /** 6511 * _scsih_search_responding_raid_devices - 6512 * @ioc: per adapter object 6513 * 6514 * After host reset, find out whether devices are still responding. 6515 * If not remove. 6516 * 6517 * Return nothing. 6518 */ 6519 static void 6520 _scsih_search_responding_raid_devices(struct MPT3SAS_ADAPTER *ioc) 6521 { 6522 Mpi2RaidVolPage1_t volume_pg1; 6523 Mpi2RaidVolPage0_t volume_pg0; 6524 Mpi2RaidPhysDiskPage0_t pd_pg0; 6525 Mpi2ConfigReply_t mpi_reply; 6526 u16 ioc_status; 6527 u16 handle; 6528 u8 phys_disk_num; 6529 6530 if (!ioc->ir_firmware) 6531 return; 6532 6533 pr_info(MPT3SAS_FMT "search for raid volumes: start\n", 6534 ioc->name); 6535 6536 if (list_empty(&ioc->raid_device_list)) 6537 goto out; 6538 6539 handle = 0xFFFF; 6540 while (!(mpt3sas_config_get_raid_volume_pg1(ioc, &mpi_reply, 6541 &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) { 6542 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 6543 MPI2_IOCSTATUS_MASK; 6544 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) 6545 break; 6546 handle = le16_to_cpu(volume_pg1.DevHandle); 6547 6548 if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, 6549 &volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle, 6550 sizeof(Mpi2RaidVolPage0_t))) 6551 continue; 6552 6553 if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL || 6554 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE || 6555 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED) 6556 _scsih_mark_responding_raid_device(ioc, 6557 le64_to_cpu(volume_pg1.WWID), handle); 6558 } 6559 6560 /* refresh the pd_handles */ 6561 phys_disk_num = 0xFF; 6562 memset(ioc->pd_handles, 0, ioc->pd_handles_sz); 6563 while (!(mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply, 6564 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM, 6565 phys_disk_num))) { 6566 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 6567 MPI2_IOCSTATUS_MASK; 6568 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) 6569 break; 6570 phys_disk_num = pd_pg0.PhysDiskNum; 6571 handle = le16_to_cpu(pd_pg0.DevHandle); 6572 set_bit(handle, ioc->pd_handles); 6573 } 6574 out: 6575 pr_info(MPT3SAS_FMT "search for responding raid volumes: complete\n", 6576 ioc->name); 6577 } 6578 6579 /** 6580 * _scsih_mark_responding_expander - mark a expander as responding 6581 * @ioc: per adapter object 6582 * @sas_address: sas address 6583 * @handle: 6584 * 6585 * After host reset, find out whether devices are still responding. 6586 * Used in _scsih_remove_unresponsive_expanders. 6587 * 6588 * Return nothing. 6589 */ 6590 static void 6591 _scsih_mark_responding_expander(struct MPT3SAS_ADAPTER *ioc, u64 sas_address, 6592 u16 handle) 6593 { 6594 struct _sas_node *sas_expander; 6595 unsigned long flags; 6596 int i; 6597 6598 spin_lock_irqsave(&ioc->sas_node_lock, flags); 6599 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) { 6600 if (sas_expander->sas_address != sas_address) 6601 continue; 6602 sas_expander->responding = 1; 6603 if (sas_expander->handle == handle) 6604 goto out; 6605 pr_info("\texpander(0x%016llx): handle changed" \ 6606 " from(0x%04x) to (0x%04x)!!!\n", 6607 (unsigned long long)sas_expander->sas_address, 6608 sas_expander->handle, handle); 6609 sas_expander->handle = handle; 6610 for (i = 0 ; i < sas_expander->num_phys ; i++) 6611 sas_expander->phy[i].handle = handle; 6612 goto out; 6613 } 6614 out: 6615 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 6616 } 6617 6618 /** 6619 * _scsih_search_responding_expanders - 6620 * @ioc: per adapter object 6621 * 6622 * After host reset, find out whether devices are still responding. 6623 * If not remove. 6624 * 6625 * Return nothing. 6626 */ 6627 static void 6628 _scsih_search_responding_expanders(struct MPT3SAS_ADAPTER *ioc) 6629 { 6630 Mpi2ExpanderPage0_t expander_pg0; 6631 Mpi2ConfigReply_t mpi_reply; 6632 u16 ioc_status; 6633 u64 sas_address; 6634 u16 handle; 6635 6636 pr_info(MPT3SAS_FMT "search for expanders: start\n", ioc->name); 6637 6638 if (list_empty(&ioc->sas_expander_list)) 6639 goto out; 6640 6641 handle = 0xFFFF; 6642 while (!(mpt3sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0, 6643 MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) { 6644 6645 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 6646 MPI2_IOCSTATUS_MASK; 6647 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) 6648 break; 6649 6650 handle = le16_to_cpu(expander_pg0.DevHandle); 6651 sas_address = le64_to_cpu(expander_pg0.SASAddress); 6652 pr_info("\texpander present: handle(0x%04x), sas_addr(0x%016llx)\n", 6653 handle, 6654 (unsigned long long)sas_address); 6655 _scsih_mark_responding_expander(ioc, sas_address, handle); 6656 } 6657 6658 out: 6659 pr_info(MPT3SAS_FMT "search for expanders: complete\n", ioc->name); 6660 } 6661 6662 /** 6663 * _scsih_remove_unresponding_sas_devices - removing unresponding devices 6664 * @ioc: per adapter object 6665 * 6666 * Return nothing. 6667 */ 6668 static void 6669 _scsih_remove_unresponding_sas_devices(struct MPT3SAS_ADAPTER *ioc) 6670 { 6671 struct _sas_device *sas_device, *sas_device_next; 6672 struct _sas_node *sas_expander, *sas_expander_next; 6673 struct _raid_device *raid_device, *raid_device_next; 6674 struct list_head tmp_list; 6675 unsigned long flags; 6676 6677 pr_info(MPT3SAS_FMT "removing unresponding devices: start\n", 6678 ioc->name); 6679 6680 /* removing unresponding end devices */ 6681 pr_info(MPT3SAS_FMT "removing unresponding devices: end-devices\n", 6682 ioc->name); 6683 list_for_each_entry_safe(sas_device, sas_device_next, 6684 &ioc->sas_device_list, list) { 6685 if (!sas_device->responding) 6686 mpt3sas_device_remove_by_sas_address(ioc, 6687 sas_device->sas_address); 6688 else 6689 sas_device->responding = 0; 6690 } 6691 6692 /* removing unresponding volumes */ 6693 if (ioc->ir_firmware) { 6694 pr_info(MPT3SAS_FMT "removing unresponding devices: volumes\n", 6695 ioc->name); 6696 list_for_each_entry_safe(raid_device, raid_device_next, 6697 &ioc->raid_device_list, list) { 6698 if (!raid_device->responding) 6699 _scsih_sas_volume_delete(ioc, 6700 raid_device->handle); 6701 else 6702 raid_device->responding = 0; 6703 } 6704 } 6705 6706 /* removing unresponding expanders */ 6707 pr_info(MPT3SAS_FMT "removing unresponding devices: expanders\n", 6708 ioc->name); 6709 spin_lock_irqsave(&ioc->sas_node_lock, flags); 6710 INIT_LIST_HEAD(&tmp_list); 6711 list_for_each_entry_safe(sas_expander, sas_expander_next, 6712 &ioc->sas_expander_list, list) { 6713 if (!sas_expander->responding) 6714 list_move_tail(&sas_expander->list, &tmp_list); 6715 else 6716 sas_expander->responding = 0; 6717 } 6718 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 6719 list_for_each_entry_safe(sas_expander, sas_expander_next, &tmp_list, 6720 list) { 6721 list_del(&sas_expander->list); 6722 _scsih_expander_node_remove(ioc, sas_expander); 6723 } 6724 6725 pr_info(MPT3SAS_FMT "removing unresponding devices: complete\n", 6726 ioc->name); 6727 6728 /* unblock devices */ 6729 _scsih_ublock_io_all_device(ioc); 6730 } 6731 6732 static void 6733 _scsih_refresh_expander_links(struct MPT3SAS_ADAPTER *ioc, 6734 struct _sas_node *sas_expander, u16 handle) 6735 { 6736 Mpi2ExpanderPage1_t expander_pg1; 6737 Mpi2ConfigReply_t mpi_reply; 6738 int i; 6739 6740 for (i = 0 ; i < sas_expander->num_phys ; i++) { 6741 if ((mpt3sas_config_get_expander_pg1(ioc, &mpi_reply, 6742 &expander_pg1, i, handle))) { 6743 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 6744 ioc->name, __FILE__, __LINE__, __func__); 6745 return; 6746 } 6747 6748 mpt3sas_transport_update_links(ioc, sas_expander->sas_address, 6749 le16_to_cpu(expander_pg1.AttachedDevHandle), i, 6750 expander_pg1.NegotiatedLinkRate >> 4); 6751 } 6752 } 6753 6754 /** 6755 * _scsih_scan_for_devices_after_reset - scan for devices after host reset 6756 * @ioc: per adapter object 6757 * 6758 * Return nothing. 6759 */ 6760 static void 6761 _scsih_scan_for_devices_after_reset(struct MPT3SAS_ADAPTER *ioc) 6762 { 6763 Mpi2ExpanderPage0_t expander_pg0; 6764 Mpi2SasDevicePage0_t sas_device_pg0; 6765 Mpi2RaidVolPage1_t volume_pg1; 6766 Mpi2RaidVolPage0_t volume_pg0; 6767 Mpi2RaidPhysDiskPage0_t pd_pg0; 6768 Mpi2EventIrConfigElement_t element; 6769 Mpi2ConfigReply_t mpi_reply; 6770 u8 phys_disk_num; 6771 u16 ioc_status; 6772 u16 handle, parent_handle; 6773 u64 sas_address; 6774 struct _sas_device *sas_device; 6775 struct _sas_node *expander_device; 6776 static struct _raid_device *raid_device; 6777 u8 retry_count; 6778 unsigned long flags; 6779 6780 pr_info(MPT3SAS_FMT "scan devices: start\n", ioc->name); 6781 6782 _scsih_sas_host_refresh(ioc); 6783 6784 pr_info(MPT3SAS_FMT "\tscan devices: expanders start\n", ioc->name); 6785 6786 /* expanders */ 6787 handle = 0xFFFF; 6788 while (!(mpt3sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0, 6789 MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) { 6790 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 6791 MPI2_IOCSTATUS_MASK; 6792 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 6793 pr_info(MPT3SAS_FMT "\tbreak from expander scan: " \ 6794 "ioc_status(0x%04x), loginfo(0x%08x)\n", 6795 ioc->name, ioc_status, 6796 le32_to_cpu(mpi_reply.IOCLogInfo)); 6797 break; 6798 } 6799 handle = le16_to_cpu(expander_pg0.DevHandle); 6800 spin_lock_irqsave(&ioc->sas_node_lock, flags); 6801 expander_device = mpt3sas_scsih_expander_find_by_sas_address( 6802 ioc, le64_to_cpu(expander_pg0.SASAddress)); 6803 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 6804 if (expander_device) 6805 _scsih_refresh_expander_links(ioc, expander_device, 6806 handle); 6807 else { 6808 pr_info(MPT3SAS_FMT "\tBEFORE adding expander: " \ 6809 "handle (0x%04x), sas_addr(0x%016llx)\n", ioc->name, 6810 handle, (unsigned long long) 6811 le64_to_cpu(expander_pg0.SASAddress)); 6812 _scsih_expander_add(ioc, handle); 6813 pr_info(MPT3SAS_FMT "\tAFTER adding expander: " \ 6814 "handle (0x%04x), sas_addr(0x%016llx)\n", ioc->name, 6815 handle, (unsigned long long) 6816 le64_to_cpu(expander_pg0.SASAddress)); 6817 } 6818 } 6819 6820 pr_info(MPT3SAS_FMT "\tscan devices: expanders complete\n", 6821 ioc->name); 6822 6823 if (!ioc->ir_firmware) 6824 goto skip_to_sas; 6825 6826 pr_info(MPT3SAS_FMT "\tscan devices: phys disk start\n", ioc->name); 6827 6828 /* phys disk */ 6829 phys_disk_num = 0xFF; 6830 while (!(mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply, 6831 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM, 6832 phys_disk_num))) { 6833 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 6834 MPI2_IOCSTATUS_MASK; 6835 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 6836 pr_info(MPT3SAS_FMT "\tbreak from phys disk scan: "\ 6837 "ioc_status(0x%04x), loginfo(0x%08x)\n", 6838 ioc->name, ioc_status, 6839 le32_to_cpu(mpi_reply.IOCLogInfo)); 6840 break; 6841 } 6842 phys_disk_num = pd_pg0.PhysDiskNum; 6843 handle = le16_to_cpu(pd_pg0.DevHandle); 6844 spin_lock_irqsave(&ioc->sas_device_lock, flags); 6845 sas_device = _scsih_sas_device_find_by_handle(ioc, handle); 6846 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 6847 if (sas_device) 6848 continue; 6849 if (mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, 6850 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, 6851 handle) != 0) 6852 continue; 6853 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 6854 MPI2_IOCSTATUS_MASK; 6855 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 6856 pr_info(MPT3SAS_FMT "\tbreak from phys disk scan " \ 6857 "ioc_status(0x%04x), loginfo(0x%08x)\n", 6858 ioc->name, ioc_status, 6859 le32_to_cpu(mpi_reply.IOCLogInfo)); 6860 break; 6861 } 6862 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle); 6863 if (!_scsih_get_sas_address(ioc, parent_handle, 6864 &sas_address)) { 6865 pr_info(MPT3SAS_FMT "\tBEFORE adding phys disk: " \ 6866 " handle (0x%04x), sas_addr(0x%016llx)\n", 6867 ioc->name, handle, (unsigned long long) 6868 le64_to_cpu(sas_device_pg0.SASAddress)); 6869 mpt3sas_transport_update_links(ioc, sas_address, 6870 handle, sas_device_pg0.PhyNum, 6871 MPI2_SAS_NEG_LINK_RATE_1_5); 6872 set_bit(handle, ioc->pd_handles); 6873 retry_count = 0; 6874 /* This will retry adding the end device. 6875 * _scsih_add_device() will decide on retries and 6876 * return "1" when it should be retried 6877 */ 6878 while (_scsih_add_device(ioc, handle, retry_count++, 6879 1)) { 6880 ssleep(1); 6881 } 6882 pr_info(MPT3SAS_FMT "\tAFTER adding phys disk: " \ 6883 " handle (0x%04x), sas_addr(0x%016llx)\n", 6884 ioc->name, handle, (unsigned long long) 6885 le64_to_cpu(sas_device_pg0.SASAddress)); 6886 } 6887 } 6888 6889 pr_info(MPT3SAS_FMT "\tscan devices: phys disk complete\n", 6890 ioc->name); 6891 6892 pr_info(MPT3SAS_FMT "\tscan devices: volumes start\n", ioc->name); 6893 6894 /* volumes */ 6895 handle = 0xFFFF; 6896 while (!(mpt3sas_config_get_raid_volume_pg1(ioc, &mpi_reply, 6897 &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) { 6898 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 6899 MPI2_IOCSTATUS_MASK; 6900 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 6901 pr_info(MPT3SAS_FMT "\tbreak from volume scan: " \ 6902 "ioc_status(0x%04x), loginfo(0x%08x)\n", 6903 ioc->name, ioc_status, 6904 le32_to_cpu(mpi_reply.IOCLogInfo)); 6905 break; 6906 } 6907 handle = le16_to_cpu(volume_pg1.DevHandle); 6908 spin_lock_irqsave(&ioc->raid_device_lock, flags); 6909 raid_device = _scsih_raid_device_find_by_wwid(ioc, 6910 le64_to_cpu(volume_pg1.WWID)); 6911 spin_unlock_irqrestore(&ioc->raid_device_lock, flags); 6912 if (raid_device) 6913 continue; 6914 if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, 6915 &volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle, 6916 sizeof(Mpi2RaidVolPage0_t))) 6917 continue; 6918 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 6919 MPI2_IOCSTATUS_MASK; 6920 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 6921 pr_info(MPT3SAS_FMT "\tbreak from volume scan: " \ 6922 "ioc_status(0x%04x), loginfo(0x%08x)\n", 6923 ioc->name, ioc_status, 6924 le32_to_cpu(mpi_reply.IOCLogInfo)); 6925 break; 6926 } 6927 if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL || 6928 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE || 6929 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED) { 6930 memset(&element, 0, sizeof(Mpi2EventIrConfigElement_t)); 6931 element.ReasonCode = MPI2_EVENT_IR_CHANGE_RC_ADDED; 6932 element.VolDevHandle = volume_pg1.DevHandle; 6933 pr_info(MPT3SAS_FMT 6934 "\tBEFORE adding volume: handle (0x%04x)\n", 6935 ioc->name, volume_pg1.DevHandle); 6936 _scsih_sas_volume_add(ioc, &element); 6937 pr_info(MPT3SAS_FMT 6938 "\tAFTER adding volume: handle (0x%04x)\n", 6939 ioc->name, volume_pg1.DevHandle); 6940 } 6941 } 6942 6943 pr_info(MPT3SAS_FMT "\tscan devices: volumes complete\n", 6944 ioc->name); 6945 6946 skip_to_sas: 6947 6948 pr_info(MPT3SAS_FMT "\tscan devices: end devices start\n", 6949 ioc->name); 6950 6951 /* sas devices */ 6952 handle = 0xFFFF; 6953 while (!(mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, 6954 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE, 6955 handle))) { 6956 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 6957 MPI2_IOCSTATUS_MASK; 6958 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 6959 pr_info(MPT3SAS_FMT "\tbreak from end device scan:"\ 6960 " ioc_status(0x%04x), loginfo(0x%08x)\n", 6961 ioc->name, ioc_status, 6962 le32_to_cpu(mpi_reply.IOCLogInfo)); 6963 break; 6964 } 6965 handle = le16_to_cpu(sas_device_pg0.DevHandle); 6966 if (!(_scsih_is_end_device( 6967 le32_to_cpu(sas_device_pg0.DeviceInfo)))) 6968 continue; 6969 spin_lock_irqsave(&ioc->sas_device_lock, flags); 6970 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, 6971 le64_to_cpu(sas_device_pg0.SASAddress)); 6972 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 6973 if (sas_device) 6974 continue; 6975 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle); 6976 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address)) { 6977 pr_info(MPT3SAS_FMT "\tBEFORE adding end device: " \ 6978 "handle (0x%04x), sas_addr(0x%016llx)\n", ioc->name, 6979 handle, (unsigned long long) 6980 le64_to_cpu(sas_device_pg0.SASAddress)); 6981 mpt3sas_transport_update_links(ioc, sas_address, handle, 6982 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5); 6983 retry_count = 0; 6984 /* This will retry adding the end device. 6985 * _scsih_add_device() will decide on retries and 6986 * return "1" when it should be retried 6987 */ 6988 while (_scsih_add_device(ioc, handle, retry_count++, 6989 0)) { 6990 ssleep(1); 6991 } 6992 pr_info(MPT3SAS_FMT "\tAFTER adding end device: " \ 6993 "handle (0x%04x), sas_addr(0x%016llx)\n", ioc->name, 6994 handle, (unsigned long long) 6995 le64_to_cpu(sas_device_pg0.SASAddress)); 6996 } 6997 } 6998 pr_info(MPT3SAS_FMT "\tscan devices: end devices complete\n", 6999 ioc->name); 7000 7001 pr_info(MPT3SAS_FMT "scan devices: complete\n", ioc->name); 7002 } 7003 /** 7004 * mpt3sas_scsih_reset_handler - reset callback handler (for scsih) 7005 * @ioc: per adapter object 7006 * @reset_phase: phase 7007 * 7008 * The handler for doing any required cleanup or initialization. 7009 * 7010 * The reset phase can be MPT3_IOC_PRE_RESET, MPT3_IOC_AFTER_RESET, 7011 * MPT3_IOC_DONE_RESET 7012 * 7013 * Return nothing. 7014 */ 7015 void 7016 mpt3sas_scsih_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase) 7017 { 7018 switch (reset_phase) { 7019 case MPT3_IOC_PRE_RESET: 7020 dtmprintk(ioc, pr_info(MPT3SAS_FMT 7021 "%s: MPT3_IOC_PRE_RESET\n", ioc->name, __func__)); 7022 break; 7023 case MPT3_IOC_AFTER_RESET: 7024 dtmprintk(ioc, pr_info(MPT3SAS_FMT 7025 "%s: MPT3_IOC_AFTER_RESET\n", ioc->name, __func__)); 7026 if (ioc->scsih_cmds.status & MPT3_CMD_PENDING) { 7027 ioc->scsih_cmds.status |= MPT3_CMD_RESET; 7028 mpt3sas_base_free_smid(ioc, ioc->scsih_cmds.smid); 7029 complete(&ioc->scsih_cmds.done); 7030 } 7031 if (ioc->tm_cmds.status & MPT3_CMD_PENDING) { 7032 ioc->tm_cmds.status |= MPT3_CMD_RESET; 7033 mpt3sas_base_free_smid(ioc, ioc->tm_cmds.smid); 7034 complete(&ioc->tm_cmds.done); 7035 } 7036 7037 _scsih_fw_event_cleanup_queue(ioc); 7038 _scsih_flush_running_cmds(ioc); 7039 break; 7040 case MPT3_IOC_DONE_RESET: 7041 dtmprintk(ioc, pr_info(MPT3SAS_FMT 7042 "%s: MPT3_IOC_DONE_RESET\n", ioc->name, __func__)); 7043 if ((!ioc->is_driver_loading) && !(disable_discovery > 0 && 7044 !ioc->sas_hba.num_phys)) { 7045 _scsih_prep_device_scan(ioc); 7046 _scsih_search_responding_sas_devices(ioc); 7047 _scsih_search_responding_raid_devices(ioc); 7048 _scsih_search_responding_expanders(ioc); 7049 _scsih_error_recovery_delete_devices(ioc); 7050 } 7051 break; 7052 } 7053 } 7054 7055 /** 7056 * _mpt3sas_fw_work - delayed task for processing firmware events 7057 * @ioc: per adapter object 7058 * @fw_event: The fw_event_work object 7059 * Context: user. 7060 * 7061 * Return nothing. 7062 */ 7063 static void 7064 _mpt3sas_fw_work(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work *fw_event) 7065 { 7066 /* the queue is being flushed so ignore this event */ 7067 if (ioc->remove_host || 7068 ioc->pci_error_recovery) { 7069 _scsih_fw_event_free(ioc, fw_event); 7070 return; 7071 } 7072 7073 switch (fw_event->event) { 7074 case MPT3SAS_PROCESS_TRIGGER_DIAG: 7075 mpt3sas_process_trigger_data(ioc, 7076 (struct SL_WH_TRIGGERS_EVENT_DATA_T *) 7077 fw_event->event_data); 7078 break; 7079 case MPT3SAS_REMOVE_UNRESPONDING_DEVICES: 7080 while (scsi_host_in_recovery(ioc->shost) || ioc->shost_recovery) 7081 ssleep(1); 7082 _scsih_remove_unresponding_sas_devices(ioc); 7083 _scsih_scan_for_devices_after_reset(ioc); 7084 break; 7085 case MPT3SAS_PORT_ENABLE_COMPLETE: 7086 ioc->start_scan = 0; 7087 if (missing_delay[0] != -1 && missing_delay[1] != -1) 7088 mpt3sas_base_update_missing_delay(ioc, missing_delay[0], 7089 missing_delay[1]); 7090 dewtprintk(ioc, pr_info(MPT3SAS_FMT 7091 "port enable: complete from worker thread\n", 7092 ioc->name)); 7093 break; 7094 case MPT3SAS_TURN_ON_PFA_LED: 7095 _scsih_turn_on_pfa_led(ioc, fw_event->device_handle); 7096 break; 7097 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST: 7098 _scsih_sas_topology_change_event(ioc, fw_event); 7099 break; 7100 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE: 7101 _scsih_sas_device_status_change_event(ioc, fw_event); 7102 break; 7103 case MPI2_EVENT_SAS_DISCOVERY: 7104 _scsih_sas_discovery_event(ioc, fw_event); 7105 break; 7106 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE: 7107 _scsih_sas_broadcast_primitive_event(ioc, fw_event); 7108 break; 7109 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE: 7110 _scsih_sas_enclosure_dev_status_change_event(ioc, 7111 fw_event); 7112 break; 7113 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST: 7114 _scsih_sas_ir_config_change_event(ioc, fw_event); 7115 break; 7116 case MPI2_EVENT_IR_VOLUME: 7117 _scsih_sas_ir_volume_event(ioc, fw_event); 7118 break; 7119 case MPI2_EVENT_IR_PHYSICAL_DISK: 7120 _scsih_sas_ir_physical_disk_event(ioc, fw_event); 7121 break; 7122 case MPI2_EVENT_IR_OPERATION_STATUS: 7123 _scsih_sas_ir_operation_status_event(ioc, fw_event); 7124 break; 7125 } 7126 _scsih_fw_event_free(ioc, fw_event); 7127 } 7128 7129 /** 7130 * _firmware_event_work 7131 * @ioc: per adapter object 7132 * @work: The fw_event_work object 7133 * Context: user. 7134 * 7135 * wrappers for the work thread handling firmware events 7136 * 7137 * Return nothing. 7138 */ 7139 7140 static void 7141 _firmware_event_work(struct work_struct *work) 7142 { 7143 struct fw_event_work *fw_event = container_of(work, 7144 struct fw_event_work, work); 7145 7146 _mpt3sas_fw_work(fw_event->ioc, fw_event); 7147 } 7148 7149 /** 7150 * mpt3sas_scsih_event_callback - firmware event handler (called at ISR time) 7151 * @ioc: per adapter object 7152 * @msix_index: MSIX table index supplied by the OS 7153 * @reply: reply message frame(lower 32bit addr) 7154 * Context: interrupt. 7155 * 7156 * This function merely adds a new work task into ioc->firmware_event_thread. 7157 * The tasks are worked from _firmware_event_work in user context. 7158 * 7159 * Return 1 meaning mf should be freed from _base_interrupt 7160 * 0 means the mf is freed from this function. 7161 */ 7162 u8 7163 mpt3sas_scsih_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index, 7164 u32 reply) 7165 { 7166 struct fw_event_work *fw_event; 7167 Mpi2EventNotificationReply_t *mpi_reply; 7168 u16 event; 7169 u16 sz; 7170 7171 /* events turned off due to host reset or driver unloading */ 7172 if (ioc->remove_host || ioc->pci_error_recovery) 7173 return 1; 7174 7175 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply); 7176 7177 if (unlikely(!mpi_reply)) { 7178 pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n", 7179 ioc->name, __FILE__, __LINE__, __func__); 7180 return 1; 7181 } 7182 7183 event = le16_to_cpu(mpi_reply->Event); 7184 7185 if (event != MPI2_EVENT_LOG_ENTRY_ADDED) 7186 mpt3sas_trigger_event(ioc, event, 0); 7187 7188 switch (event) { 7189 /* handle these */ 7190 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE: 7191 { 7192 Mpi2EventDataSasBroadcastPrimitive_t *baen_data = 7193 (Mpi2EventDataSasBroadcastPrimitive_t *) 7194 mpi_reply->EventData; 7195 7196 if (baen_data->Primitive != 7197 MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT) 7198 return 1; 7199 7200 if (ioc->broadcast_aen_busy) { 7201 ioc->broadcast_aen_pending++; 7202 return 1; 7203 } else 7204 ioc->broadcast_aen_busy = 1; 7205 break; 7206 } 7207 7208 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST: 7209 _scsih_check_topo_delete_events(ioc, 7210 (Mpi2EventDataSasTopologyChangeList_t *) 7211 mpi_reply->EventData); 7212 break; 7213 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST: 7214 _scsih_check_ir_config_unhide_events(ioc, 7215 (Mpi2EventDataIrConfigChangeList_t *) 7216 mpi_reply->EventData); 7217 break; 7218 case MPI2_EVENT_IR_VOLUME: 7219 _scsih_check_volume_delete_events(ioc, 7220 (Mpi2EventDataIrVolume_t *) 7221 mpi_reply->EventData); 7222 break; 7223 7224 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE: 7225 case MPI2_EVENT_IR_OPERATION_STATUS: 7226 case MPI2_EVENT_SAS_DISCOVERY: 7227 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE: 7228 case MPI2_EVENT_IR_PHYSICAL_DISK: 7229 break; 7230 7231 case MPI2_EVENT_TEMP_THRESHOLD: 7232 _scsih_temp_threshold_events(ioc, 7233 (Mpi2EventDataTemperature_t *) 7234 mpi_reply->EventData); 7235 break; 7236 7237 default: /* ignore the rest */ 7238 return 1; 7239 } 7240 7241 sz = le16_to_cpu(mpi_reply->EventDataLength) * 4; 7242 fw_event = kzalloc(sizeof(*fw_event) + sz, GFP_ATOMIC); 7243 if (!fw_event) { 7244 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 7245 ioc->name, __FILE__, __LINE__, __func__); 7246 return 1; 7247 } 7248 7249 memcpy(fw_event->event_data, mpi_reply->EventData, sz); 7250 fw_event->ioc = ioc; 7251 fw_event->VF_ID = mpi_reply->VF_ID; 7252 fw_event->VP_ID = mpi_reply->VP_ID; 7253 fw_event->event = event; 7254 _scsih_fw_event_add(ioc, fw_event); 7255 return 1; 7256 } 7257 7258 /* shost template */ 7259 static struct scsi_host_template scsih_driver_template = { 7260 .module = THIS_MODULE, 7261 .name = "Fusion MPT SAS Host", 7262 .proc_name = MPT3SAS_DRIVER_NAME, 7263 .queuecommand = _scsih_qcmd, 7264 .target_alloc = _scsih_target_alloc, 7265 .slave_alloc = _scsih_slave_alloc, 7266 .slave_configure = _scsih_slave_configure, 7267 .target_destroy = _scsih_target_destroy, 7268 .slave_destroy = _scsih_slave_destroy, 7269 .scan_finished = _scsih_scan_finished, 7270 .scan_start = _scsih_scan_start, 7271 .change_queue_depth = _scsih_change_queue_depth, 7272 .eh_abort_handler = _scsih_abort, 7273 .eh_device_reset_handler = _scsih_dev_reset, 7274 .eh_target_reset_handler = _scsih_target_reset, 7275 .eh_host_reset_handler = _scsih_host_reset, 7276 .bios_param = _scsih_bios_param, 7277 .can_queue = 1, 7278 .this_id = -1, 7279 .sg_tablesize = MPT3SAS_SG_DEPTH, 7280 .max_sectors = 32767, 7281 .cmd_per_lun = 7, 7282 .use_clustering = ENABLE_CLUSTERING, 7283 .shost_attrs = mpt3sas_host_attrs, 7284 .sdev_attrs = mpt3sas_dev_attrs, 7285 .track_queue_depth = 1, 7286 }; 7287 7288 /** 7289 * _scsih_expander_node_remove - removing expander device from list. 7290 * @ioc: per adapter object 7291 * @sas_expander: the sas_device object 7292 * Context: Calling function should acquire ioc->sas_node_lock. 7293 * 7294 * Removing object and freeing associated memory from the 7295 * ioc->sas_expander_list. 7296 * 7297 * Return nothing. 7298 */ 7299 static void 7300 _scsih_expander_node_remove(struct MPT3SAS_ADAPTER *ioc, 7301 struct _sas_node *sas_expander) 7302 { 7303 struct _sas_port *mpt3sas_port, *next; 7304 7305 /* remove sibling ports attached to this expander */ 7306 list_for_each_entry_safe(mpt3sas_port, next, 7307 &sas_expander->sas_port_list, port_list) { 7308 if (ioc->shost_recovery) 7309 return; 7310 if (mpt3sas_port->remote_identify.device_type == 7311 SAS_END_DEVICE) 7312 mpt3sas_device_remove_by_sas_address(ioc, 7313 mpt3sas_port->remote_identify.sas_address); 7314 else if (mpt3sas_port->remote_identify.device_type == 7315 SAS_EDGE_EXPANDER_DEVICE || 7316 mpt3sas_port->remote_identify.device_type == 7317 SAS_FANOUT_EXPANDER_DEVICE) 7318 mpt3sas_expander_remove(ioc, 7319 mpt3sas_port->remote_identify.sas_address); 7320 } 7321 7322 mpt3sas_transport_port_remove(ioc, sas_expander->sas_address, 7323 sas_expander->sas_address_parent); 7324 7325 pr_info(MPT3SAS_FMT 7326 "expander_remove: handle(0x%04x), sas_addr(0x%016llx)\n", 7327 ioc->name, 7328 sas_expander->handle, (unsigned long long) 7329 sas_expander->sas_address); 7330 7331 kfree(sas_expander->phy); 7332 kfree(sas_expander); 7333 } 7334 7335 /** 7336 * _scsih_ir_shutdown - IR shutdown notification 7337 * @ioc: per adapter object 7338 * 7339 * Sending RAID Action to alert the Integrated RAID subsystem of the IOC that 7340 * the host system is shutting down. 7341 * 7342 * Return nothing. 7343 */ 7344 static void 7345 _scsih_ir_shutdown(struct MPT3SAS_ADAPTER *ioc) 7346 { 7347 Mpi2RaidActionRequest_t *mpi_request; 7348 Mpi2RaidActionReply_t *mpi_reply; 7349 u16 smid; 7350 7351 /* is IR firmware build loaded ? */ 7352 if (!ioc->ir_firmware) 7353 return; 7354 7355 /* are there any volumes ? */ 7356 if (list_empty(&ioc->raid_device_list)) 7357 return; 7358 7359 mutex_lock(&ioc->scsih_cmds.mutex); 7360 7361 if (ioc->scsih_cmds.status != MPT3_CMD_NOT_USED) { 7362 pr_err(MPT3SAS_FMT "%s: scsih_cmd in use\n", 7363 ioc->name, __func__); 7364 goto out; 7365 } 7366 ioc->scsih_cmds.status = MPT3_CMD_PENDING; 7367 7368 smid = mpt3sas_base_get_smid(ioc, ioc->scsih_cb_idx); 7369 if (!smid) { 7370 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n", 7371 ioc->name, __func__); 7372 ioc->scsih_cmds.status = MPT3_CMD_NOT_USED; 7373 goto out; 7374 } 7375 7376 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 7377 ioc->scsih_cmds.smid = smid; 7378 memset(mpi_request, 0, sizeof(Mpi2RaidActionRequest_t)); 7379 7380 mpi_request->Function = MPI2_FUNCTION_RAID_ACTION; 7381 mpi_request->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED; 7382 7383 pr_info(MPT3SAS_FMT "IR shutdown (sending)\n", ioc->name); 7384 init_completion(&ioc->scsih_cmds.done); 7385 mpt3sas_base_put_smid_default(ioc, smid); 7386 wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ); 7387 7388 if (!(ioc->scsih_cmds.status & MPT3_CMD_COMPLETE)) { 7389 pr_err(MPT3SAS_FMT "%s: timeout\n", 7390 ioc->name, __func__); 7391 goto out; 7392 } 7393 7394 if (ioc->scsih_cmds.status & MPT3_CMD_REPLY_VALID) { 7395 mpi_reply = ioc->scsih_cmds.reply; 7396 pr_info(MPT3SAS_FMT 7397 "IR shutdown (complete): ioc_status(0x%04x), loginfo(0x%08x)\n", 7398 ioc->name, le16_to_cpu(mpi_reply->IOCStatus), 7399 le32_to_cpu(mpi_reply->IOCLogInfo)); 7400 } 7401 7402 out: 7403 ioc->scsih_cmds.status = MPT3_CMD_NOT_USED; 7404 mutex_unlock(&ioc->scsih_cmds.mutex); 7405 } 7406 7407 /** 7408 * _scsih_remove - detach and remove add host 7409 * @pdev: PCI device struct 7410 * 7411 * Routine called when unloading the driver. 7412 * Return nothing. 7413 */ 7414 static void _scsih_remove(struct pci_dev *pdev) 7415 { 7416 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7417 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 7418 struct _sas_port *mpt3sas_port, *next_port; 7419 struct _raid_device *raid_device, *next; 7420 struct MPT3SAS_TARGET *sas_target_priv_data; 7421 struct workqueue_struct *wq; 7422 unsigned long flags; 7423 7424 ioc->remove_host = 1; 7425 _scsih_fw_event_cleanup_queue(ioc); 7426 7427 spin_lock_irqsave(&ioc->fw_event_lock, flags); 7428 wq = ioc->firmware_event_thread; 7429 ioc->firmware_event_thread = NULL; 7430 spin_unlock_irqrestore(&ioc->fw_event_lock, flags); 7431 if (wq) 7432 destroy_workqueue(wq); 7433 7434 /* release all the volumes */ 7435 _scsih_ir_shutdown(ioc); 7436 list_for_each_entry_safe(raid_device, next, &ioc->raid_device_list, 7437 list) { 7438 if (raid_device->starget) { 7439 sas_target_priv_data = 7440 raid_device->starget->hostdata; 7441 sas_target_priv_data->deleted = 1; 7442 scsi_remove_target(&raid_device->starget->dev); 7443 } 7444 pr_info(MPT3SAS_FMT "removing handle(0x%04x), wwid(0x%016llx)\n", 7445 ioc->name, raid_device->handle, 7446 (unsigned long long) raid_device->wwid); 7447 _scsih_raid_device_remove(ioc, raid_device); 7448 } 7449 7450 /* free ports attached to the sas_host */ 7451 list_for_each_entry_safe(mpt3sas_port, next_port, 7452 &ioc->sas_hba.sas_port_list, port_list) { 7453 if (mpt3sas_port->remote_identify.device_type == 7454 SAS_END_DEVICE) 7455 mpt3sas_device_remove_by_sas_address(ioc, 7456 mpt3sas_port->remote_identify.sas_address); 7457 else if (mpt3sas_port->remote_identify.device_type == 7458 SAS_EDGE_EXPANDER_DEVICE || 7459 mpt3sas_port->remote_identify.device_type == 7460 SAS_FANOUT_EXPANDER_DEVICE) 7461 mpt3sas_expander_remove(ioc, 7462 mpt3sas_port->remote_identify.sas_address); 7463 } 7464 7465 /* free phys attached to the sas_host */ 7466 if (ioc->sas_hba.num_phys) { 7467 kfree(ioc->sas_hba.phy); 7468 ioc->sas_hba.phy = NULL; 7469 ioc->sas_hba.num_phys = 0; 7470 } 7471 7472 sas_remove_host(shost); 7473 scsi_remove_host(shost); 7474 mpt3sas_base_detach(ioc); 7475 list_del(&ioc->list); 7476 scsi_host_put(shost); 7477 } 7478 7479 /** 7480 * _scsih_shutdown - routine call during system shutdown 7481 * @pdev: PCI device struct 7482 * 7483 * Return nothing. 7484 */ 7485 static void 7486 _scsih_shutdown(struct pci_dev *pdev) 7487 { 7488 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7489 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 7490 struct workqueue_struct *wq; 7491 unsigned long flags; 7492 7493 ioc->remove_host = 1; 7494 _scsih_fw_event_cleanup_queue(ioc); 7495 7496 spin_lock_irqsave(&ioc->fw_event_lock, flags); 7497 wq = ioc->firmware_event_thread; 7498 ioc->firmware_event_thread = NULL; 7499 spin_unlock_irqrestore(&ioc->fw_event_lock, flags); 7500 if (wq) 7501 destroy_workqueue(wq); 7502 7503 _scsih_ir_shutdown(ioc); 7504 mpt3sas_base_detach(ioc); 7505 } 7506 7507 7508 /** 7509 * _scsih_probe_boot_devices - reports 1st device 7510 * @ioc: per adapter object 7511 * 7512 * If specified in bios page 2, this routine reports the 1st 7513 * device scsi-ml or sas transport for persistent boot device 7514 * purposes. Please refer to function _scsih_determine_boot_device() 7515 */ 7516 static void 7517 _scsih_probe_boot_devices(struct MPT3SAS_ADAPTER *ioc) 7518 { 7519 u8 is_raid; 7520 void *device; 7521 struct _sas_device *sas_device; 7522 struct _raid_device *raid_device; 7523 u16 handle; 7524 u64 sas_address_parent; 7525 u64 sas_address; 7526 unsigned long flags; 7527 int rc; 7528 7529 /* no Bios, return immediately */ 7530 if (!ioc->bios_pg3.BiosVersion) 7531 return; 7532 7533 device = NULL; 7534 is_raid = 0; 7535 if (ioc->req_boot_device.device) { 7536 device = ioc->req_boot_device.device; 7537 is_raid = ioc->req_boot_device.is_raid; 7538 } else if (ioc->req_alt_boot_device.device) { 7539 device = ioc->req_alt_boot_device.device; 7540 is_raid = ioc->req_alt_boot_device.is_raid; 7541 } else if (ioc->current_boot_device.device) { 7542 device = ioc->current_boot_device.device; 7543 is_raid = ioc->current_boot_device.is_raid; 7544 } 7545 7546 if (!device) 7547 return; 7548 7549 if (is_raid) { 7550 raid_device = device; 7551 rc = scsi_add_device(ioc->shost, RAID_CHANNEL, 7552 raid_device->id, 0); 7553 if (rc) 7554 _scsih_raid_device_remove(ioc, raid_device); 7555 } else { 7556 spin_lock_irqsave(&ioc->sas_device_lock, flags); 7557 sas_device = device; 7558 handle = sas_device->handle; 7559 sas_address_parent = sas_device->sas_address_parent; 7560 sas_address = sas_device->sas_address; 7561 list_move_tail(&sas_device->list, &ioc->sas_device_list); 7562 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 7563 7564 if (!mpt3sas_transport_port_add(ioc, handle, 7565 sas_address_parent)) { 7566 _scsih_sas_device_remove(ioc, sas_device); 7567 } else if (!sas_device->starget) { 7568 if (!ioc->is_driver_loading) { 7569 mpt3sas_transport_port_remove(ioc, 7570 sas_address, 7571 sas_address_parent); 7572 _scsih_sas_device_remove(ioc, sas_device); 7573 } 7574 } 7575 } 7576 } 7577 7578 /** 7579 * _scsih_probe_raid - reporting raid volumes to scsi-ml 7580 * @ioc: per adapter object 7581 * 7582 * Called during initial loading of the driver. 7583 */ 7584 static void 7585 _scsih_probe_raid(struct MPT3SAS_ADAPTER *ioc) 7586 { 7587 struct _raid_device *raid_device, *raid_next; 7588 int rc; 7589 7590 list_for_each_entry_safe(raid_device, raid_next, 7591 &ioc->raid_device_list, list) { 7592 if (raid_device->starget) 7593 continue; 7594 rc = scsi_add_device(ioc->shost, RAID_CHANNEL, 7595 raid_device->id, 0); 7596 if (rc) 7597 _scsih_raid_device_remove(ioc, raid_device); 7598 } 7599 } 7600 7601 /** 7602 * _scsih_probe_sas - reporting sas devices to sas transport 7603 * @ioc: per adapter object 7604 * 7605 * Called during initial loading of the driver. 7606 */ 7607 static void 7608 _scsih_probe_sas(struct MPT3SAS_ADAPTER *ioc) 7609 { 7610 struct _sas_device *sas_device, *next; 7611 unsigned long flags; 7612 7613 /* SAS Device List */ 7614 list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list, 7615 list) { 7616 7617 if (!mpt3sas_transport_port_add(ioc, sas_device->handle, 7618 sas_device->sas_address_parent)) { 7619 list_del(&sas_device->list); 7620 kfree(sas_device); 7621 continue; 7622 } else if (!sas_device->starget) { 7623 /* 7624 * When asyn scanning is enabled, its not possible to 7625 * remove devices while scanning is turned on due to an 7626 * oops in scsi_sysfs_add_sdev()->add_device()-> 7627 * sysfs_addrm_start() 7628 */ 7629 if (!ioc->is_driver_loading) { 7630 mpt3sas_transport_port_remove(ioc, 7631 sas_device->sas_address, 7632 sas_device->sas_address_parent); 7633 list_del(&sas_device->list); 7634 kfree(sas_device); 7635 continue; 7636 } 7637 } 7638 7639 spin_lock_irqsave(&ioc->sas_device_lock, flags); 7640 list_move_tail(&sas_device->list, &ioc->sas_device_list); 7641 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 7642 } 7643 } 7644 7645 /** 7646 * _scsih_probe_devices - probing for devices 7647 * @ioc: per adapter object 7648 * 7649 * Called during initial loading of the driver. 7650 */ 7651 static void 7652 _scsih_probe_devices(struct MPT3SAS_ADAPTER *ioc) 7653 { 7654 u16 volume_mapping_flags; 7655 7656 if (!(ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR)) 7657 return; /* return when IOC doesn't support initiator mode */ 7658 7659 _scsih_probe_boot_devices(ioc); 7660 7661 if (ioc->ir_firmware) { 7662 volume_mapping_flags = 7663 le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) & 7664 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE; 7665 if (volume_mapping_flags == 7666 MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) { 7667 _scsih_probe_raid(ioc); 7668 _scsih_probe_sas(ioc); 7669 } else { 7670 _scsih_probe_sas(ioc); 7671 _scsih_probe_raid(ioc); 7672 } 7673 } else 7674 _scsih_probe_sas(ioc); 7675 } 7676 7677 /** 7678 * _scsih_scan_start - scsi lld callback for .scan_start 7679 * @shost: SCSI host pointer 7680 * 7681 * The shost has the ability to discover targets on its own instead 7682 * of scanning the entire bus. In our implemention, we will kick off 7683 * firmware discovery. 7684 */ 7685 static void 7686 _scsih_scan_start(struct Scsi_Host *shost) 7687 { 7688 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 7689 int rc; 7690 if (diag_buffer_enable != -1 && diag_buffer_enable != 0) 7691 mpt3sas_enable_diag_buffer(ioc, diag_buffer_enable); 7692 7693 if (disable_discovery > 0) 7694 return; 7695 7696 ioc->start_scan = 1; 7697 rc = mpt3sas_port_enable(ioc); 7698 7699 if (rc != 0) 7700 pr_info(MPT3SAS_FMT "port enable: FAILED\n", ioc->name); 7701 } 7702 7703 /** 7704 * _scsih_scan_finished - scsi lld callback for .scan_finished 7705 * @shost: SCSI host pointer 7706 * @time: elapsed time of the scan in jiffies 7707 * 7708 * This function will be called periodicallyn until it returns 1 with the 7709 * scsi_host and the elapsed time of the scan in jiffies. In our implemention, 7710 * we wait for firmware discovery to complete, then return 1. 7711 */ 7712 static int 7713 _scsih_scan_finished(struct Scsi_Host *shost, unsigned long time) 7714 { 7715 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 7716 7717 if (disable_discovery > 0) { 7718 ioc->is_driver_loading = 0; 7719 ioc->wait_for_discovery_to_complete = 0; 7720 return 1; 7721 } 7722 7723 if (time >= (300 * HZ)) { 7724 ioc->base_cmds.status = MPT3_CMD_NOT_USED; 7725 pr_info(MPT3SAS_FMT 7726 "port enable: FAILED with timeout (timeout=300s)\n", 7727 ioc->name); 7728 ioc->is_driver_loading = 0; 7729 return 1; 7730 } 7731 7732 if (ioc->start_scan) 7733 return 0; 7734 7735 if (ioc->start_scan_failed) { 7736 pr_info(MPT3SAS_FMT 7737 "port enable: FAILED with (ioc_status=0x%08x)\n", 7738 ioc->name, ioc->start_scan_failed); 7739 ioc->is_driver_loading = 0; 7740 ioc->wait_for_discovery_to_complete = 0; 7741 ioc->remove_host = 1; 7742 return 1; 7743 } 7744 7745 pr_info(MPT3SAS_FMT "port enable: SUCCESS\n", ioc->name); 7746 ioc->base_cmds.status = MPT3_CMD_NOT_USED; 7747 7748 if (ioc->wait_for_discovery_to_complete) { 7749 ioc->wait_for_discovery_to_complete = 0; 7750 _scsih_probe_devices(ioc); 7751 } 7752 mpt3sas_base_start_watchdog(ioc); 7753 ioc->is_driver_loading = 0; 7754 return 1; 7755 } 7756 7757 /** 7758 * _scsih_probe - attach and add scsi host 7759 * @pdev: PCI device struct 7760 * @id: pci device id 7761 * 7762 * Returns 0 success, anything else error. 7763 */ 7764 static int 7765 _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id) 7766 { 7767 struct MPT3SAS_ADAPTER *ioc; 7768 struct Scsi_Host *shost; 7769 int rv; 7770 7771 shost = scsi_host_alloc(&scsih_driver_template, 7772 sizeof(struct MPT3SAS_ADAPTER)); 7773 if (!shost) 7774 return -ENODEV; 7775 7776 /* init local params */ 7777 ioc = shost_priv(shost); 7778 memset(ioc, 0, sizeof(struct MPT3SAS_ADAPTER)); 7779 INIT_LIST_HEAD(&ioc->list); 7780 list_add_tail(&ioc->list, &mpt3sas_ioc_list); 7781 ioc->shost = shost; 7782 ioc->id = mpt_ids++; 7783 sprintf(ioc->name, "%s%d", MPT3SAS_DRIVER_NAME, ioc->id); 7784 ioc->pdev = pdev; 7785 ioc->scsi_io_cb_idx = scsi_io_cb_idx; 7786 ioc->tm_cb_idx = tm_cb_idx; 7787 ioc->ctl_cb_idx = ctl_cb_idx; 7788 ioc->base_cb_idx = base_cb_idx; 7789 ioc->port_enable_cb_idx = port_enable_cb_idx; 7790 ioc->transport_cb_idx = transport_cb_idx; 7791 ioc->scsih_cb_idx = scsih_cb_idx; 7792 ioc->config_cb_idx = config_cb_idx; 7793 ioc->tm_tr_cb_idx = tm_tr_cb_idx; 7794 ioc->tm_tr_volume_cb_idx = tm_tr_volume_cb_idx; 7795 ioc->tm_sas_control_cb_idx = tm_sas_control_cb_idx; 7796 ioc->logging_level = logging_level; 7797 ioc->schedule_dead_ioc_flush_running_cmds = &_scsih_flush_running_cmds; 7798 /* misc semaphores and spin locks */ 7799 mutex_init(&ioc->reset_in_progress_mutex); 7800 spin_lock_init(&ioc->ioc_reset_in_progress_lock); 7801 spin_lock_init(&ioc->scsi_lookup_lock); 7802 spin_lock_init(&ioc->sas_device_lock); 7803 spin_lock_init(&ioc->sas_node_lock); 7804 spin_lock_init(&ioc->fw_event_lock); 7805 spin_lock_init(&ioc->raid_device_lock); 7806 spin_lock_init(&ioc->diag_trigger_lock); 7807 7808 INIT_LIST_HEAD(&ioc->sas_device_list); 7809 INIT_LIST_HEAD(&ioc->sas_device_init_list); 7810 INIT_LIST_HEAD(&ioc->sas_expander_list); 7811 INIT_LIST_HEAD(&ioc->fw_event_list); 7812 INIT_LIST_HEAD(&ioc->raid_device_list); 7813 INIT_LIST_HEAD(&ioc->sas_hba.sas_port_list); 7814 INIT_LIST_HEAD(&ioc->delayed_tr_list); 7815 INIT_LIST_HEAD(&ioc->delayed_tr_volume_list); 7816 INIT_LIST_HEAD(&ioc->reply_queue_list); 7817 7818 /* init shost parameters */ 7819 shost->max_cmd_len = 32; 7820 shost->max_lun = max_lun; 7821 shost->transportt = mpt3sas_transport_template; 7822 shost->unique_id = ioc->id; 7823 7824 if (max_sectors != 0xFFFF) { 7825 if (max_sectors < 64) { 7826 shost->max_sectors = 64; 7827 pr_warn(MPT3SAS_FMT "Invalid value %d passed " \ 7828 "for max_sectors, range is 64 to 32767. Assigning " 7829 "value of 64.\n", ioc->name, max_sectors); 7830 } else if (max_sectors > 32767) { 7831 shost->max_sectors = 32767; 7832 pr_warn(MPT3SAS_FMT "Invalid value %d passed " \ 7833 "for max_sectors, range is 64 to 32767. Assigning " 7834 "default value of 32767.\n", ioc->name, 7835 max_sectors); 7836 } else { 7837 shost->max_sectors = max_sectors & 0xFFFE; 7838 pr_info(MPT3SAS_FMT 7839 "The max_sectors value is set to %d\n", 7840 ioc->name, shost->max_sectors); 7841 } 7842 } 7843 7844 /* register EEDP capabilities with SCSI layer */ 7845 if (prot_mask > 0) 7846 scsi_host_set_prot(shost, prot_mask); 7847 else 7848 scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION 7849 | SHOST_DIF_TYPE2_PROTECTION 7850 | SHOST_DIF_TYPE3_PROTECTION); 7851 7852 scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC); 7853 7854 /* event thread */ 7855 snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name), 7856 "fw_event%d", ioc->id); 7857 ioc->firmware_event_thread = create_singlethread_workqueue( 7858 ioc->firmware_event_name); 7859 if (!ioc->firmware_event_thread) { 7860 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 7861 ioc->name, __FILE__, __LINE__, __func__); 7862 rv = -ENODEV; 7863 goto out_thread_fail; 7864 } 7865 7866 ioc->is_driver_loading = 1; 7867 if ((mpt3sas_base_attach(ioc))) { 7868 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 7869 ioc->name, __FILE__, __LINE__, __func__); 7870 rv = -ENODEV; 7871 goto out_attach_fail; 7872 } 7873 rv = scsi_add_host(shost, &pdev->dev); 7874 if (rv) { 7875 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 7876 ioc->name, __FILE__, __LINE__, __func__); 7877 goto out_add_shost_fail; 7878 } 7879 7880 scsi_scan_host(shost); 7881 return 0; 7882 out_add_shost_fail: 7883 mpt3sas_base_detach(ioc); 7884 out_attach_fail: 7885 destroy_workqueue(ioc->firmware_event_thread); 7886 out_thread_fail: 7887 list_del(&ioc->list); 7888 scsi_host_put(shost); 7889 return rv; 7890 } 7891 7892 #ifdef CONFIG_PM 7893 /** 7894 * _scsih_suspend - power management suspend main entry point 7895 * @pdev: PCI device struct 7896 * @state: PM state change to (usually PCI_D3) 7897 * 7898 * Returns 0 success, anything else error. 7899 */ 7900 static int 7901 _scsih_suspend(struct pci_dev *pdev, pm_message_t state) 7902 { 7903 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7904 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 7905 pci_power_t device_state; 7906 7907 mpt3sas_base_stop_watchdog(ioc); 7908 flush_scheduled_work(); 7909 scsi_block_requests(shost); 7910 device_state = pci_choose_state(pdev, state); 7911 pr_info(MPT3SAS_FMT 7912 "pdev=0x%p, slot=%s, entering operating state [D%d]\n", 7913 ioc->name, pdev, pci_name(pdev), device_state); 7914 7915 pci_save_state(pdev); 7916 mpt3sas_base_free_resources(ioc); 7917 pci_set_power_state(pdev, device_state); 7918 return 0; 7919 } 7920 7921 /** 7922 * _scsih_resume - power management resume main entry point 7923 * @pdev: PCI device struct 7924 * 7925 * Returns 0 success, anything else error. 7926 */ 7927 static int 7928 _scsih_resume(struct pci_dev *pdev) 7929 { 7930 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7931 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 7932 pci_power_t device_state = pdev->current_state; 7933 int r; 7934 7935 pr_info(MPT3SAS_FMT 7936 "pdev=0x%p, slot=%s, previous operating state [D%d]\n", 7937 ioc->name, pdev, pci_name(pdev), device_state); 7938 7939 pci_set_power_state(pdev, PCI_D0); 7940 pci_enable_wake(pdev, PCI_D0, 0); 7941 pci_restore_state(pdev); 7942 ioc->pdev = pdev; 7943 r = mpt3sas_base_map_resources(ioc); 7944 if (r) 7945 return r; 7946 7947 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP, SOFT_RESET); 7948 scsi_unblock_requests(shost); 7949 mpt3sas_base_start_watchdog(ioc); 7950 return 0; 7951 } 7952 #endif /* CONFIG_PM */ 7953 7954 /** 7955 * _scsih_pci_error_detected - Called when a PCI error is detected. 7956 * @pdev: PCI device struct 7957 * @state: PCI channel state 7958 * 7959 * Description: Called when a PCI error is detected. 7960 * 7961 * Return value: 7962 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT 7963 */ 7964 static pci_ers_result_t 7965 _scsih_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 7966 { 7967 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7968 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 7969 7970 pr_info(MPT3SAS_FMT "PCI error: detected callback, state(%d)!!\n", 7971 ioc->name, state); 7972 7973 switch (state) { 7974 case pci_channel_io_normal: 7975 return PCI_ERS_RESULT_CAN_RECOVER; 7976 case pci_channel_io_frozen: 7977 /* Fatal error, prepare for slot reset */ 7978 ioc->pci_error_recovery = 1; 7979 scsi_block_requests(ioc->shost); 7980 mpt3sas_base_stop_watchdog(ioc); 7981 mpt3sas_base_free_resources(ioc); 7982 return PCI_ERS_RESULT_NEED_RESET; 7983 case pci_channel_io_perm_failure: 7984 /* Permanent error, prepare for device removal */ 7985 ioc->pci_error_recovery = 1; 7986 mpt3sas_base_stop_watchdog(ioc); 7987 _scsih_flush_running_cmds(ioc); 7988 return PCI_ERS_RESULT_DISCONNECT; 7989 } 7990 return PCI_ERS_RESULT_NEED_RESET; 7991 } 7992 7993 /** 7994 * _scsih_pci_slot_reset - Called when PCI slot has been reset. 7995 * @pdev: PCI device struct 7996 * 7997 * Description: This routine is called by the pci error recovery 7998 * code after the PCI slot has been reset, just before we 7999 * should resume normal operations. 8000 */ 8001 static pci_ers_result_t 8002 _scsih_pci_slot_reset(struct pci_dev *pdev) 8003 { 8004 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8005 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 8006 int rc; 8007 8008 pr_info(MPT3SAS_FMT "PCI error: slot reset callback!!\n", 8009 ioc->name); 8010 8011 ioc->pci_error_recovery = 0; 8012 ioc->pdev = pdev; 8013 pci_restore_state(pdev); 8014 rc = mpt3sas_base_map_resources(ioc); 8015 if (rc) 8016 return PCI_ERS_RESULT_DISCONNECT; 8017 8018 rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP, 8019 FORCE_BIG_HAMMER); 8020 8021 pr_warn(MPT3SAS_FMT "hard reset: %s\n", ioc->name, 8022 (rc == 0) ? "success" : "failed"); 8023 8024 if (!rc) 8025 return PCI_ERS_RESULT_RECOVERED; 8026 else 8027 return PCI_ERS_RESULT_DISCONNECT; 8028 } 8029 8030 /** 8031 * _scsih_pci_resume() - resume normal ops after PCI reset 8032 * @pdev: pointer to PCI device 8033 * 8034 * Called when the error recovery driver tells us that its 8035 * OK to resume normal operation. Use completion to allow 8036 * halted scsi ops to resume. 8037 */ 8038 static void 8039 _scsih_pci_resume(struct pci_dev *pdev) 8040 { 8041 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8042 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 8043 8044 pr_info(MPT3SAS_FMT "PCI error: resume callback!!\n", ioc->name); 8045 8046 pci_cleanup_aer_uncorrect_error_status(pdev); 8047 mpt3sas_base_start_watchdog(ioc); 8048 scsi_unblock_requests(ioc->shost); 8049 } 8050 8051 /** 8052 * _scsih_pci_mmio_enabled - Enable MMIO and dump debug registers 8053 * @pdev: pointer to PCI device 8054 */ 8055 static pci_ers_result_t 8056 _scsih_pci_mmio_enabled(struct pci_dev *pdev) 8057 { 8058 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8059 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 8060 8061 pr_info(MPT3SAS_FMT "PCI error: mmio enabled callback!!\n", 8062 ioc->name); 8063 8064 /* TODO - dump whatever for debugging purposes */ 8065 8066 /* Request a slot reset. */ 8067 return PCI_ERS_RESULT_NEED_RESET; 8068 } 8069 8070 /* raid transport support */ 8071 static struct raid_function_template mpt3sas_raid_functions = { 8072 .cookie = &scsih_driver_template, 8073 .is_raid = _scsih_is_raid, 8074 .get_resync = _scsih_get_resync, 8075 .get_state = _scsih_get_state, 8076 }; 8077 8078 static struct pci_error_handlers _scsih_err_handler = { 8079 .error_detected = _scsih_pci_error_detected, 8080 .mmio_enabled = _scsih_pci_mmio_enabled, 8081 .slot_reset = _scsih_pci_slot_reset, 8082 .resume = _scsih_pci_resume, 8083 }; 8084 8085 static struct pci_driver scsih_driver = { 8086 .name = MPT3SAS_DRIVER_NAME, 8087 .id_table = scsih_pci_table, 8088 .probe = _scsih_probe, 8089 .remove = _scsih_remove, 8090 .shutdown = _scsih_shutdown, 8091 .err_handler = &_scsih_err_handler, 8092 #ifdef CONFIG_PM 8093 .suspend = _scsih_suspend, 8094 .resume = _scsih_resume, 8095 #endif 8096 }; 8097 8098 8099 /** 8100 * _scsih_init - main entry point for this driver. 8101 * 8102 * Returns 0 success, anything else error. 8103 */ 8104 static int __init 8105 _scsih_init(void) 8106 { 8107 int error; 8108 8109 mpt_ids = 0; 8110 8111 pr_info("%s version %s loaded\n", MPT3SAS_DRIVER_NAME, 8112 MPT3SAS_DRIVER_VERSION); 8113 8114 mpt3sas_transport_template = 8115 sas_attach_transport(&mpt3sas_transport_functions); 8116 if (!mpt3sas_transport_template) 8117 return -ENODEV; 8118 8119 /* raid transport support */ 8120 mpt3sas_raid_template = raid_class_attach(&mpt3sas_raid_functions); 8121 if (!mpt3sas_raid_template) { 8122 sas_release_transport(mpt3sas_transport_template); 8123 return -ENODEV; 8124 } 8125 8126 mpt3sas_base_initialize_callback_handler(); 8127 8128 /* queuecommand callback hander */ 8129 scsi_io_cb_idx = mpt3sas_base_register_callback_handler(_scsih_io_done); 8130 8131 /* task managment callback handler */ 8132 tm_cb_idx = mpt3sas_base_register_callback_handler(_scsih_tm_done); 8133 8134 /* base internal commands callback handler */ 8135 base_cb_idx = mpt3sas_base_register_callback_handler(mpt3sas_base_done); 8136 port_enable_cb_idx = mpt3sas_base_register_callback_handler( 8137 mpt3sas_port_enable_done); 8138 8139 /* transport internal commands callback handler */ 8140 transport_cb_idx = mpt3sas_base_register_callback_handler( 8141 mpt3sas_transport_done); 8142 8143 /* scsih internal commands callback handler */ 8144 scsih_cb_idx = mpt3sas_base_register_callback_handler(_scsih_done); 8145 8146 /* configuration page API internal commands callback handler */ 8147 config_cb_idx = mpt3sas_base_register_callback_handler( 8148 mpt3sas_config_done); 8149 8150 /* ctl module callback handler */ 8151 ctl_cb_idx = mpt3sas_base_register_callback_handler(mpt3sas_ctl_done); 8152 8153 tm_tr_cb_idx = mpt3sas_base_register_callback_handler( 8154 _scsih_tm_tr_complete); 8155 8156 tm_tr_volume_cb_idx = mpt3sas_base_register_callback_handler( 8157 _scsih_tm_volume_tr_complete); 8158 8159 tm_sas_control_cb_idx = mpt3sas_base_register_callback_handler( 8160 _scsih_sas_control_complete); 8161 8162 mpt3sas_ctl_init(); 8163 8164 error = pci_register_driver(&scsih_driver); 8165 if (error) { 8166 /* raid transport support */ 8167 raid_class_release(mpt3sas_raid_template); 8168 sas_release_transport(mpt3sas_transport_template); 8169 } 8170 8171 return error; 8172 } 8173 8174 /** 8175 * _scsih_exit - exit point for this driver (when it is a module). 8176 * 8177 * Returns 0 success, anything else error. 8178 */ 8179 static void __exit 8180 _scsih_exit(void) 8181 { 8182 pr_info("mpt3sas version %s unloading\n", 8183 MPT3SAS_DRIVER_VERSION); 8184 8185 mpt3sas_ctl_exit(); 8186 8187 pci_unregister_driver(&scsih_driver); 8188 8189 8190 mpt3sas_base_release_callback_handler(scsi_io_cb_idx); 8191 mpt3sas_base_release_callback_handler(tm_cb_idx); 8192 mpt3sas_base_release_callback_handler(base_cb_idx); 8193 mpt3sas_base_release_callback_handler(port_enable_cb_idx); 8194 mpt3sas_base_release_callback_handler(transport_cb_idx); 8195 mpt3sas_base_release_callback_handler(scsih_cb_idx); 8196 mpt3sas_base_release_callback_handler(config_cb_idx); 8197 mpt3sas_base_release_callback_handler(ctl_cb_idx); 8198 8199 mpt3sas_base_release_callback_handler(tm_tr_cb_idx); 8200 mpt3sas_base_release_callback_handler(tm_tr_volume_cb_idx); 8201 mpt3sas_base_release_callback_handler(tm_sas_control_cb_idx); 8202 8203 /* raid transport support */ 8204 raid_class_release(mpt3sas_raid_template); 8205 sas_release_transport(mpt3sas_transport_template); 8206 } 8207 8208 module_init(_scsih_init); 8209 module_exit(_scsih_exit); 8210