mpt2sas_base.c revision 8bad3055e902a16b7cf47777fc3e78a965d0b57a
1/* 2 * This is the Fusion MPT base driver providing common API layer interface 3 * for access to MPT (Message Passing Technology) firmware. 4 * 5 * This code is based on drivers/scsi/mpt2sas/mpt2_base.c 6 * Copyright (C) 2007-2010 LSI Corporation 7 * (mailto:DL-MPTFusionLinux@lsi.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/kernel.h> 46#include <linux/module.h> 47#include <linux/errno.h> 48#include <linux/init.h> 49#include <linux/slab.h> 50#include <linux/types.h> 51#include <linux/pci.h> 52#include <linux/kdev_t.h> 53#include <linux/blkdev.h> 54#include <linux/delay.h> 55#include <linux/interrupt.h> 56#include <linux/dma-mapping.h> 57#include <linux/sort.h> 58#include <linux/io.h> 59#include <linux/time.h> 60#include <linux/kthread.h> 61#include <linux/aer.h> 62 63#include "mpt2sas_base.h" 64 65static MPT_CALLBACK mpt_callbacks[MPT_MAX_CALLBACKS]; 66 67#define FAULT_POLLING_INTERVAL 1000 /* in milliseconds */ 68 69static int max_queue_depth = -1; 70module_param(max_queue_depth, int, 0); 71MODULE_PARM_DESC(max_queue_depth, " max controller queue depth "); 72 73static int max_sgl_entries = -1; 74module_param(max_sgl_entries, int, 0); 75MODULE_PARM_DESC(max_sgl_entries, " max sg entries "); 76 77static int msix_disable = -1; 78module_param(msix_disable, int, 0); 79MODULE_PARM_DESC(msix_disable, " disable msix routed interrupts (default=0)"); 80 81static int missing_delay[2] = {-1, -1}; 82module_param_array(missing_delay, int, NULL, 0); 83MODULE_PARM_DESC(missing_delay, " device missing delay , io missing delay"); 84 85static int mpt2sas_fwfault_debug; 86MODULE_PARM_DESC(mpt2sas_fwfault_debug, " enable detection of firmware fault " 87 "and halt firmware - (default=0)"); 88 89static int disable_discovery = -1; 90module_param(disable_discovery, int, 0); 91MODULE_PARM_DESC(disable_discovery, " disable discovery "); 92 93 94/* diag_buffer_enable is bitwise 95 * bit 0 set = TRACE 96 * bit 1 set = SNAPSHOT 97 * bit 2 set = EXTENDED 98 * 99 * Either bit can be set, or both 100 */ 101static int diag_buffer_enable; 102module_param(diag_buffer_enable, int, 0); 103MODULE_PARM_DESC(diag_buffer_enable, " post diag buffers " 104 "(TRACE=1/SNAPSHOT=2/EXTENDED=4/default=0)"); 105 106/** 107 * _scsih_set_fwfault_debug - global setting of ioc->fwfault_debug. 108 * 109 */ 110static int 111_scsih_set_fwfault_debug(const char *val, struct kernel_param *kp) 112{ 113 int ret = param_set_int(val, kp); 114 struct MPT2SAS_ADAPTER *ioc; 115 116 if (ret) 117 return ret; 118 119 printk(KERN_INFO "setting fwfault_debug(%d)\n", mpt2sas_fwfault_debug); 120 list_for_each_entry(ioc, &mpt2sas_ioc_list, list) 121 ioc->fwfault_debug = mpt2sas_fwfault_debug; 122 return 0; 123} 124 125module_param_call(mpt2sas_fwfault_debug, _scsih_set_fwfault_debug, 126 param_get_int, &mpt2sas_fwfault_debug, 0644); 127 128/** 129 * mpt2sas_remove_dead_ioc_func - kthread context to remove dead ioc 130 * @arg: input argument, used to derive ioc 131 * 132 * Return 0 if controller is removed from pci subsystem. 133 * Return -1 for other case. 134 */ 135static int mpt2sas_remove_dead_ioc_func(void *arg) 136{ 137 struct MPT2SAS_ADAPTER *ioc = (struct MPT2SAS_ADAPTER *)arg; 138 struct pci_dev *pdev; 139 140 if ((ioc == NULL)) 141 return -1; 142 143 pdev = ioc->pdev; 144 if ((pdev == NULL)) 145 return -1; 146 pci_remove_bus_device(pdev); 147 return 0; 148} 149 150 151/** 152 * _base_fault_reset_work - workq handling ioc fault conditions 153 * @work: input argument, used to derive ioc 154 * Context: sleep. 155 * 156 * Return nothing. 157 */ 158static void 159_base_fault_reset_work(struct work_struct *work) 160{ 161 struct MPT2SAS_ADAPTER *ioc = 162 container_of(work, struct MPT2SAS_ADAPTER, fault_reset_work.work); 163 unsigned long flags; 164 u32 doorbell; 165 int rc; 166 struct task_struct *p; 167 168 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); 169 if (ioc->shost_recovery) 170 goto rearm_timer; 171 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); 172 173 doorbell = mpt2sas_base_get_iocstate(ioc, 0); 174 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_MASK) { 175 printk(MPT2SAS_INFO_FMT "%s : SAS host is non-operational !!!!\n", 176 ioc->name, __func__); 177 178 /* 179 * Call _scsih_flush_pending_cmds callback so that we flush all 180 * pending commands back to OS. This call is required to aovid 181 * deadlock at block layer. Dead IOC will fail to do diag reset, 182 * and this call is safe since dead ioc will never return any 183 * command back from HW. 184 */ 185 ioc->schedule_dead_ioc_flush_running_cmds(ioc); 186 /* 187 * Set remove_host flag early since kernel thread will 188 * take some time to execute. 189 */ 190 ioc->remove_host = 1; 191 /*Remove the Dead Host */ 192 p = kthread_run(mpt2sas_remove_dead_ioc_func, ioc, 193 "mpt2sas_dead_ioc_%d", ioc->id); 194 if (IS_ERR(p)) { 195 printk(MPT2SAS_ERR_FMT 196 "%s: Running mpt2sas_dead_ioc thread failed !!!!\n", 197 ioc->name, __func__); 198 } else { 199 printk(MPT2SAS_ERR_FMT 200 "%s: Running mpt2sas_dead_ioc thread success !!!!\n", 201 ioc->name, __func__); 202 } 203 204 return; /* don't rearm timer */ 205 } 206 207 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) { 208 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, 209 FORCE_BIG_HAMMER); 210 printk(MPT2SAS_WARN_FMT "%s: hard reset: %s\n", ioc->name, 211 __func__, (rc == 0) ? "success" : "failed"); 212 doorbell = mpt2sas_base_get_iocstate(ioc, 0); 213 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) 214 mpt2sas_base_fault_info(ioc, doorbell & 215 MPI2_DOORBELL_DATA_MASK); 216 } 217 218 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); 219 rearm_timer: 220 if (ioc->fault_reset_work_q) 221 queue_delayed_work(ioc->fault_reset_work_q, 222 &ioc->fault_reset_work, 223 msecs_to_jiffies(FAULT_POLLING_INTERVAL)); 224 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); 225} 226 227/** 228 * mpt2sas_base_start_watchdog - start the fault_reset_work_q 229 * @ioc: per adapter object 230 * Context: sleep. 231 * 232 * Return nothing. 233 */ 234void 235mpt2sas_base_start_watchdog(struct MPT2SAS_ADAPTER *ioc) 236{ 237 unsigned long flags; 238 239 if (ioc->fault_reset_work_q) 240 return; 241 242 /* initialize fault polling */ 243 INIT_DELAYED_WORK(&ioc->fault_reset_work, _base_fault_reset_work); 244 snprintf(ioc->fault_reset_work_q_name, 245 sizeof(ioc->fault_reset_work_q_name), "poll_%d_status", ioc->id); 246 ioc->fault_reset_work_q = 247 create_singlethread_workqueue(ioc->fault_reset_work_q_name); 248 if (!ioc->fault_reset_work_q) { 249 printk(MPT2SAS_ERR_FMT "%s: failed (line=%d)\n", 250 ioc->name, __func__, __LINE__); 251 return; 252 } 253 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); 254 if (ioc->fault_reset_work_q) 255 queue_delayed_work(ioc->fault_reset_work_q, 256 &ioc->fault_reset_work, 257 msecs_to_jiffies(FAULT_POLLING_INTERVAL)); 258 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); 259} 260 261/** 262 * mpt2sas_base_stop_watchdog - stop the fault_reset_work_q 263 * @ioc: per adapter object 264 * Context: sleep. 265 * 266 * Return nothing. 267 */ 268void 269mpt2sas_base_stop_watchdog(struct MPT2SAS_ADAPTER *ioc) 270{ 271 unsigned long flags; 272 struct workqueue_struct *wq; 273 274 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); 275 wq = ioc->fault_reset_work_q; 276 ioc->fault_reset_work_q = NULL; 277 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); 278 if (wq) { 279 if (!cancel_delayed_work(&ioc->fault_reset_work)) 280 flush_workqueue(wq); 281 destroy_workqueue(wq); 282 } 283} 284 285/** 286 * mpt2sas_base_fault_info - verbose translation of firmware FAULT code 287 * @ioc: per adapter object 288 * @fault_code: fault code 289 * 290 * Return nothing. 291 */ 292void 293mpt2sas_base_fault_info(struct MPT2SAS_ADAPTER *ioc , u16 fault_code) 294{ 295 printk(MPT2SAS_ERR_FMT "fault_state(0x%04x)!\n", 296 ioc->name, fault_code); 297} 298 299/** 300 * mpt2sas_halt_firmware - halt's mpt controller firmware 301 * @ioc: per adapter object 302 * 303 * For debugging timeout related issues. Writing 0xCOFFEE00 304 * to the doorbell register will halt controller firmware. With 305 * the purpose to stop both driver and firmware, the enduser can 306 * obtain a ring buffer from controller UART. 307 */ 308void 309mpt2sas_halt_firmware(struct MPT2SAS_ADAPTER *ioc) 310{ 311 u32 doorbell; 312 313 if (!ioc->fwfault_debug) 314 return; 315 316 dump_stack(); 317 318 doorbell = readl(&ioc->chip->Doorbell); 319 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) 320 mpt2sas_base_fault_info(ioc , doorbell); 321 else { 322 writel(0xC0FFEE00, &ioc->chip->Doorbell); 323 printk(MPT2SAS_ERR_FMT "Firmware is halted due to command " 324 "timeout\n", ioc->name); 325 } 326 327 panic("panic in %s\n", __func__); 328} 329 330#ifdef CONFIG_SCSI_MPT2SAS_LOGGING 331/** 332 * _base_sas_ioc_info - verbose translation of the ioc status 333 * @ioc: per adapter object 334 * @mpi_reply: reply mf payload returned from firmware 335 * @request_hdr: request mf 336 * 337 * Return nothing. 338 */ 339static void 340_base_sas_ioc_info(struct MPT2SAS_ADAPTER *ioc, MPI2DefaultReply_t *mpi_reply, 341 MPI2RequestHeader_t *request_hdr) 342{ 343 u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & 344 MPI2_IOCSTATUS_MASK; 345 char *desc = NULL; 346 u16 frame_sz; 347 char *func_str = NULL; 348 349 /* SCSI_IO, RAID_PASS are handled from _scsih_scsi_ioc_info */ 350 if (request_hdr->Function == MPI2_FUNCTION_SCSI_IO_REQUEST || 351 request_hdr->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH || 352 request_hdr->Function == MPI2_FUNCTION_EVENT_NOTIFICATION) 353 return; 354 355 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE) 356 return; 357 358 switch (ioc_status) { 359 360/**************************************************************************** 361* Common IOCStatus values for all replies 362****************************************************************************/ 363 364 case MPI2_IOCSTATUS_INVALID_FUNCTION: 365 desc = "invalid function"; 366 break; 367 case MPI2_IOCSTATUS_BUSY: 368 desc = "busy"; 369 break; 370 case MPI2_IOCSTATUS_INVALID_SGL: 371 desc = "invalid sgl"; 372 break; 373 case MPI2_IOCSTATUS_INTERNAL_ERROR: 374 desc = "internal error"; 375 break; 376 case MPI2_IOCSTATUS_INVALID_VPID: 377 desc = "invalid vpid"; 378 break; 379 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES: 380 desc = "insufficient resources"; 381 break; 382 case MPI2_IOCSTATUS_INVALID_FIELD: 383 desc = "invalid field"; 384 break; 385 case MPI2_IOCSTATUS_INVALID_STATE: 386 desc = "invalid state"; 387 break; 388 case MPI2_IOCSTATUS_OP_STATE_NOT_SUPPORTED: 389 desc = "op state not supported"; 390 break; 391 392/**************************************************************************** 393* Config IOCStatus values 394****************************************************************************/ 395 396 case MPI2_IOCSTATUS_CONFIG_INVALID_ACTION: 397 desc = "config invalid action"; 398 break; 399 case MPI2_IOCSTATUS_CONFIG_INVALID_TYPE: 400 desc = "config invalid type"; 401 break; 402 case MPI2_IOCSTATUS_CONFIG_INVALID_PAGE: 403 desc = "config invalid page"; 404 break; 405 case MPI2_IOCSTATUS_CONFIG_INVALID_DATA: 406 desc = "config invalid data"; 407 break; 408 case MPI2_IOCSTATUS_CONFIG_NO_DEFAULTS: 409 desc = "config no defaults"; 410 break; 411 case MPI2_IOCSTATUS_CONFIG_CANT_COMMIT: 412 desc = "config cant commit"; 413 break; 414 415/**************************************************************************** 416* SCSI IO Reply 417****************************************************************************/ 418 419 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR: 420 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE: 421 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE: 422 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN: 423 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN: 424 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR: 425 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR: 426 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED: 427 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: 428 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED: 429 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED: 430 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED: 431 break; 432 433/**************************************************************************** 434* For use by SCSI Initiator and SCSI Target end-to-end data protection 435****************************************************************************/ 436 437 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR: 438 desc = "eedp guard error"; 439 break; 440 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR: 441 desc = "eedp ref tag error"; 442 break; 443 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR: 444 desc = "eedp app tag error"; 445 break; 446 447/**************************************************************************** 448* SCSI Target values 449****************************************************************************/ 450 451 case MPI2_IOCSTATUS_TARGET_INVALID_IO_INDEX: 452 desc = "target invalid io index"; 453 break; 454 case MPI2_IOCSTATUS_TARGET_ABORTED: 455 desc = "target aborted"; 456 break; 457 case MPI2_IOCSTATUS_TARGET_NO_CONN_RETRYABLE: 458 desc = "target no conn retryable"; 459 break; 460 case MPI2_IOCSTATUS_TARGET_NO_CONNECTION: 461 desc = "target no connection"; 462 break; 463 case MPI2_IOCSTATUS_TARGET_XFER_COUNT_MISMATCH: 464 desc = "target xfer count mismatch"; 465 break; 466 case MPI2_IOCSTATUS_TARGET_DATA_OFFSET_ERROR: 467 desc = "target data offset error"; 468 break; 469 case MPI2_IOCSTATUS_TARGET_TOO_MUCH_WRITE_DATA: 470 desc = "target too much write data"; 471 break; 472 case MPI2_IOCSTATUS_TARGET_IU_TOO_SHORT: 473 desc = "target iu too short"; 474 break; 475 case MPI2_IOCSTATUS_TARGET_ACK_NAK_TIMEOUT: 476 desc = "target ack nak timeout"; 477 break; 478 case MPI2_IOCSTATUS_TARGET_NAK_RECEIVED: 479 desc = "target nak received"; 480 break; 481 482/**************************************************************************** 483* Serial Attached SCSI values 484****************************************************************************/ 485 486 case MPI2_IOCSTATUS_SAS_SMP_REQUEST_FAILED: 487 desc = "smp request failed"; 488 break; 489 case MPI2_IOCSTATUS_SAS_SMP_DATA_OVERRUN: 490 desc = "smp data overrun"; 491 break; 492 493/**************************************************************************** 494* Diagnostic Buffer Post / Diagnostic Release values 495****************************************************************************/ 496 497 case MPI2_IOCSTATUS_DIAGNOSTIC_RELEASED: 498 desc = "diagnostic released"; 499 break; 500 default: 501 break; 502 } 503 504 if (!desc) 505 return; 506 507 switch (request_hdr->Function) { 508 case MPI2_FUNCTION_CONFIG: 509 frame_sz = sizeof(Mpi2ConfigRequest_t) + ioc->sge_size; 510 func_str = "config_page"; 511 break; 512 case MPI2_FUNCTION_SCSI_TASK_MGMT: 513 frame_sz = sizeof(Mpi2SCSITaskManagementRequest_t); 514 func_str = "task_mgmt"; 515 break; 516 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL: 517 frame_sz = sizeof(Mpi2SasIoUnitControlRequest_t); 518 func_str = "sas_iounit_ctl"; 519 break; 520 case MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR: 521 frame_sz = sizeof(Mpi2SepRequest_t); 522 func_str = "enclosure"; 523 break; 524 case MPI2_FUNCTION_IOC_INIT: 525 frame_sz = sizeof(Mpi2IOCInitRequest_t); 526 func_str = "ioc_init"; 527 break; 528 case MPI2_FUNCTION_PORT_ENABLE: 529 frame_sz = sizeof(Mpi2PortEnableRequest_t); 530 func_str = "port_enable"; 531 break; 532 case MPI2_FUNCTION_SMP_PASSTHROUGH: 533 frame_sz = sizeof(Mpi2SmpPassthroughRequest_t) + ioc->sge_size; 534 func_str = "smp_passthru"; 535 break; 536 default: 537 frame_sz = 32; 538 func_str = "unknown"; 539 break; 540 } 541 542 printk(MPT2SAS_WARN_FMT "ioc_status: %s(0x%04x), request(0x%p)," 543 " (%s)\n", ioc->name, desc, ioc_status, request_hdr, func_str); 544 545 _debug_dump_mf(request_hdr, frame_sz/4); 546} 547 548/** 549 * _base_display_event_data - verbose translation of firmware asyn events 550 * @ioc: per adapter object 551 * @mpi_reply: reply mf payload returned from firmware 552 * 553 * Return nothing. 554 */ 555static void 556_base_display_event_data(struct MPT2SAS_ADAPTER *ioc, 557 Mpi2EventNotificationReply_t *mpi_reply) 558{ 559 char *desc = NULL; 560 u16 event; 561 562 if (!(ioc->logging_level & MPT_DEBUG_EVENTS)) 563 return; 564 565 event = le16_to_cpu(mpi_reply->Event); 566 567 switch (event) { 568 case MPI2_EVENT_LOG_DATA: 569 desc = "Log Data"; 570 break; 571 case MPI2_EVENT_STATE_CHANGE: 572 desc = "Status Change"; 573 break; 574 case MPI2_EVENT_HARD_RESET_RECEIVED: 575 desc = "Hard Reset Received"; 576 break; 577 case MPI2_EVENT_EVENT_CHANGE: 578 desc = "Event Change"; 579 break; 580 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE: 581 desc = "Device Status Change"; 582 break; 583 case MPI2_EVENT_IR_OPERATION_STATUS: 584 if (!ioc->hide_ir_msg) 585 desc = "IR Operation Status"; 586 break; 587 case MPI2_EVENT_SAS_DISCOVERY: 588 { 589 Mpi2EventDataSasDiscovery_t *event_data = 590 (Mpi2EventDataSasDiscovery_t *)mpi_reply->EventData; 591 printk(MPT2SAS_INFO_FMT "Discovery: (%s)", ioc->name, 592 (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ? 593 "start" : "stop"); 594 if (event_data->DiscoveryStatus) 595 printk("discovery_status(0x%08x)", 596 le32_to_cpu(event_data->DiscoveryStatus)); 597 printk("\n"); 598 return; 599 } 600 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE: 601 desc = "SAS Broadcast Primitive"; 602 break; 603 case MPI2_EVENT_SAS_INIT_DEVICE_STATUS_CHANGE: 604 desc = "SAS Init Device Status Change"; 605 break; 606 case MPI2_EVENT_SAS_INIT_TABLE_OVERFLOW: 607 desc = "SAS Init Table Overflow"; 608 break; 609 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST: 610 desc = "SAS Topology Change List"; 611 break; 612 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE: 613 desc = "SAS Enclosure Device Status Change"; 614 break; 615 case MPI2_EVENT_IR_VOLUME: 616 if (!ioc->hide_ir_msg) 617 desc = "IR Volume"; 618 break; 619 case MPI2_EVENT_IR_PHYSICAL_DISK: 620 if (!ioc->hide_ir_msg) 621 desc = "IR Physical Disk"; 622 break; 623 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST: 624 if (!ioc->hide_ir_msg) 625 desc = "IR Configuration Change List"; 626 break; 627 case MPI2_EVENT_LOG_ENTRY_ADDED: 628 if (!ioc->hide_ir_msg) 629 desc = "Log Entry Added"; 630 break; 631 } 632 633 if (!desc) 634 return; 635 636 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, desc); 637} 638#endif 639 640/** 641 * _base_sas_log_info - verbose translation of firmware log info 642 * @ioc: per adapter object 643 * @log_info: log info 644 * 645 * Return nothing. 646 */ 647static void 648_base_sas_log_info(struct MPT2SAS_ADAPTER *ioc , u32 log_info) 649{ 650 union loginfo_type { 651 u32 loginfo; 652 struct { 653 u32 subcode:16; 654 u32 code:8; 655 u32 originator:4; 656 u32 bus_type:4; 657 } dw; 658 }; 659 union loginfo_type sas_loginfo; 660 char *originator_str = NULL; 661 662 sas_loginfo.loginfo = log_info; 663 if (sas_loginfo.dw.bus_type != 3 /*SAS*/) 664 return; 665 666 /* each nexus loss loginfo */ 667 if (log_info == 0x31170000) 668 return; 669 670 /* eat the loginfos associated with task aborts */ 671 if (ioc->ignore_loginfos && (log_info == 30050000 || log_info == 672 0x31140000 || log_info == 0x31130000)) 673 return; 674 675 switch (sas_loginfo.dw.originator) { 676 case 0: 677 originator_str = "IOP"; 678 break; 679 case 1: 680 originator_str = "PL"; 681 break; 682 case 2: 683 if (!ioc->hide_ir_msg) 684 originator_str = "IR"; 685 else 686 originator_str = "WarpDrive"; 687 break; 688 } 689 690 printk(MPT2SAS_WARN_FMT "log_info(0x%08x): originator(%s), " 691 "code(0x%02x), sub_code(0x%04x)\n", ioc->name, log_info, 692 originator_str, sas_loginfo.dw.code, 693 sas_loginfo.dw.subcode); 694} 695 696/** 697 * _base_display_reply_info - 698 * @ioc: per adapter object 699 * @smid: system request message index 700 * @msix_index: MSIX table index supplied by the OS 701 * @reply: reply message frame(lower 32bit addr) 702 * 703 * Return nothing. 704 */ 705static void 706_base_display_reply_info(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, 707 u32 reply) 708{ 709 MPI2DefaultReply_t *mpi_reply; 710 u16 ioc_status; 711 712 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); 713 ioc_status = le16_to_cpu(mpi_reply->IOCStatus); 714#ifdef CONFIG_SCSI_MPT2SAS_LOGGING 715 if ((ioc_status & MPI2_IOCSTATUS_MASK) && 716 (ioc->logging_level & MPT_DEBUG_REPLY)) { 717 _base_sas_ioc_info(ioc , mpi_reply, 718 mpt2sas_base_get_msg_frame(ioc, smid)); 719 } 720#endif 721 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE) 722 _base_sas_log_info(ioc, le32_to_cpu(mpi_reply->IOCLogInfo)); 723} 724 725/** 726 * mpt2sas_base_done - base internal command completion routine 727 * @ioc: per adapter object 728 * @smid: system request message index 729 * @msix_index: MSIX table index supplied by the OS 730 * @reply: reply message frame(lower 32bit addr) 731 * 732 * Return 1 meaning mf should be freed from _base_interrupt 733 * 0 means the mf is freed from this function. 734 */ 735u8 736mpt2sas_base_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, 737 u32 reply) 738{ 739 MPI2DefaultReply_t *mpi_reply; 740 741 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); 742 if (mpi_reply && mpi_reply->Function == MPI2_FUNCTION_EVENT_ACK) 743 return 1; 744 745 if (ioc->base_cmds.status == MPT2_CMD_NOT_USED) 746 return 1; 747 748 ioc->base_cmds.status |= MPT2_CMD_COMPLETE; 749 if (mpi_reply) { 750 ioc->base_cmds.status |= MPT2_CMD_REPLY_VALID; 751 memcpy(ioc->base_cmds.reply, mpi_reply, mpi_reply->MsgLength*4); 752 } 753 ioc->base_cmds.status &= ~MPT2_CMD_PENDING; 754 755 complete(&ioc->base_cmds.done); 756 return 1; 757} 758 759/** 760 * _base_async_event - main callback handler for firmware asyn events 761 * @ioc: per adapter object 762 * @msix_index: MSIX table index supplied by the OS 763 * @reply: reply message frame(lower 32bit addr) 764 * 765 * Return 1 meaning mf should be freed from _base_interrupt 766 * 0 means the mf is freed from this function. 767 */ 768static u8 769_base_async_event(struct MPT2SAS_ADAPTER *ioc, u8 msix_index, u32 reply) 770{ 771 Mpi2EventNotificationReply_t *mpi_reply; 772 Mpi2EventAckRequest_t *ack_request; 773 u16 smid; 774 775 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); 776 if (!mpi_reply) 777 return 1; 778 if (mpi_reply->Function != MPI2_FUNCTION_EVENT_NOTIFICATION) 779 return 1; 780#ifdef CONFIG_SCSI_MPT2SAS_LOGGING 781 _base_display_event_data(ioc, mpi_reply); 782#endif 783 if (!(mpi_reply->AckRequired & MPI2_EVENT_NOTIFICATION_ACK_REQUIRED)) 784 goto out; 785 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx); 786 if (!smid) { 787 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", 788 ioc->name, __func__); 789 goto out; 790 } 791 792 ack_request = mpt2sas_base_get_msg_frame(ioc, smid); 793 memset(ack_request, 0, sizeof(Mpi2EventAckRequest_t)); 794 ack_request->Function = MPI2_FUNCTION_EVENT_ACK; 795 ack_request->Event = mpi_reply->Event; 796 ack_request->EventContext = mpi_reply->EventContext; 797 ack_request->VF_ID = 0; /* TODO */ 798 ack_request->VP_ID = 0; 799 mpt2sas_base_put_smid_default(ioc, smid); 800 801 out: 802 803 /* scsih callback handler */ 804 mpt2sas_scsih_event_callback(ioc, msix_index, reply); 805 806 /* ctl callback handler */ 807 mpt2sas_ctl_event_callback(ioc, msix_index, reply); 808 809 return 1; 810} 811 812/** 813 * _base_get_cb_idx - obtain the callback index 814 * @ioc: per adapter object 815 * @smid: system request message index 816 * 817 * Return callback index. 818 */ 819static u8 820_base_get_cb_idx(struct MPT2SAS_ADAPTER *ioc, u16 smid) 821{ 822 int i; 823 u8 cb_idx; 824 825 if (smid < ioc->hi_priority_smid) { 826 i = smid - 1; 827 cb_idx = ioc->scsi_lookup[i].cb_idx; 828 } else if (smid < ioc->internal_smid) { 829 i = smid - ioc->hi_priority_smid; 830 cb_idx = ioc->hpr_lookup[i].cb_idx; 831 } else if (smid <= ioc->hba_queue_depth) { 832 i = smid - ioc->internal_smid; 833 cb_idx = ioc->internal_lookup[i].cb_idx; 834 } else 835 cb_idx = 0xFF; 836 return cb_idx; 837} 838 839/** 840 * _base_mask_interrupts - disable interrupts 841 * @ioc: per adapter object 842 * 843 * Disabling ResetIRQ, Reply and Doorbell Interrupts 844 * 845 * Return nothing. 846 */ 847static void 848_base_mask_interrupts(struct MPT2SAS_ADAPTER *ioc) 849{ 850 u32 him_register; 851 852 ioc->mask_interrupts = 1; 853 him_register = readl(&ioc->chip->HostInterruptMask); 854 him_register |= MPI2_HIM_DIM + MPI2_HIM_RIM + MPI2_HIM_RESET_IRQ_MASK; 855 writel(him_register, &ioc->chip->HostInterruptMask); 856 readl(&ioc->chip->HostInterruptMask); 857} 858 859/** 860 * _base_unmask_interrupts - enable interrupts 861 * @ioc: per adapter object 862 * 863 * Enabling only Reply Interrupts 864 * 865 * Return nothing. 866 */ 867static void 868_base_unmask_interrupts(struct MPT2SAS_ADAPTER *ioc) 869{ 870 u32 him_register; 871 872 him_register = readl(&ioc->chip->HostInterruptMask); 873 him_register &= ~MPI2_HIM_RIM; 874 writel(him_register, &ioc->chip->HostInterruptMask); 875 ioc->mask_interrupts = 0; 876} 877 878union reply_descriptor { 879 u64 word; 880 struct { 881 u32 low; 882 u32 high; 883 } u; 884}; 885 886/** 887 * _base_interrupt - MPT adapter (IOC) specific interrupt handler. 888 * @irq: irq number (not used) 889 * @bus_id: bus identifier cookie == pointer to MPT_ADAPTER structure 890 * @r: pt_regs pointer (not used) 891 * 892 * Return IRQ_HANDLE if processed, else IRQ_NONE. 893 */ 894static irqreturn_t 895_base_interrupt(int irq, void *bus_id) 896{ 897 struct adapter_reply_queue *reply_q = bus_id; 898 union reply_descriptor rd; 899 u32 completed_cmds; 900 u8 request_desript_type; 901 u16 smid; 902 u8 cb_idx; 903 u32 reply; 904 u8 msix_index = reply_q->msix_index; 905 struct MPT2SAS_ADAPTER *ioc = reply_q->ioc; 906 Mpi2ReplyDescriptorsUnion_t *rpf; 907 u8 rc; 908 909 if (ioc->mask_interrupts) 910 return IRQ_NONE; 911 912 if (!atomic_add_unless(&reply_q->busy, 1, 1)) 913 return IRQ_NONE; 914 915 rpf = &reply_q->reply_post_free[reply_q->reply_post_host_index]; 916 request_desript_type = rpf->Default.ReplyFlags 917 & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK; 918 if (request_desript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED) { 919 atomic_dec(&reply_q->busy); 920 return IRQ_NONE; 921 } 922 923 completed_cmds = 0; 924 cb_idx = 0xFF; 925 do { 926 rd.word = le64_to_cpu(rpf->Words); 927 if (rd.u.low == UINT_MAX || rd.u.high == UINT_MAX) 928 goto out; 929 reply = 0; 930 smid = le16_to_cpu(rpf->Default.DescriptorTypeDependent1); 931 if (request_desript_type == 932 MPI2_RPY_DESCRIPT_FLAGS_ADDRESS_REPLY) { 933 reply = le32_to_cpu 934 (rpf->AddressReply.ReplyFrameAddress); 935 if (reply > ioc->reply_dma_max_address || 936 reply < ioc->reply_dma_min_address) 937 reply = 0; 938 } else if (request_desript_type == 939 MPI2_RPY_DESCRIPT_FLAGS_TARGET_COMMAND_BUFFER) 940 goto next; 941 else if (request_desript_type == 942 MPI2_RPY_DESCRIPT_FLAGS_TARGETASSIST_SUCCESS) 943 goto next; 944 if (smid) 945 cb_idx = _base_get_cb_idx(ioc, smid); 946 if (smid && cb_idx != 0xFF) { 947 rc = mpt_callbacks[cb_idx](ioc, smid, msix_index, 948 reply); 949 if (reply) 950 _base_display_reply_info(ioc, smid, msix_index, 951 reply); 952 if (rc) 953 mpt2sas_base_free_smid(ioc, smid); 954 } 955 if (!smid) 956 _base_async_event(ioc, msix_index, reply); 957 958 /* reply free queue handling */ 959 if (reply) { 960 ioc->reply_free_host_index = 961 (ioc->reply_free_host_index == 962 (ioc->reply_free_queue_depth - 1)) ? 963 0 : ioc->reply_free_host_index + 1; 964 ioc->reply_free[ioc->reply_free_host_index] = 965 cpu_to_le32(reply); 966 wmb(); 967 writel(ioc->reply_free_host_index, 968 &ioc->chip->ReplyFreeHostIndex); 969 } 970 971 next: 972 973 rpf->Words = cpu_to_le64(ULLONG_MAX); 974 reply_q->reply_post_host_index = 975 (reply_q->reply_post_host_index == 976 (ioc->reply_post_queue_depth - 1)) ? 0 : 977 reply_q->reply_post_host_index + 1; 978 request_desript_type = 979 reply_q->reply_post_free[reply_q->reply_post_host_index]. 980 Default.ReplyFlags & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK; 981 completed_cmds++; 982 if (request_desript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED) 983 goto out; 984 if (!reply_q->reply_post_host_index) 985 rpf = reply_q->reply_post_free; 986 else 987 rpf++; 988 } while (1); 989 990 out: 991 992 if (!completed_cmds) { 993 atomic_dec(&reply_q->busy); 994 return IRQ_NONE; 995 } 996 wmb(); 997 if (ioc->is_warpdrive) { 998 writel(reply_q->reply_post_host_index, 999 ioc->reply_post_host_index[msix_index]); 1000 atomic_dec(&reply_q->busy); 1001 return IRQ_HANDLED; 1002 } 1003 writel(reply_q->reply_post_host_index | (msix_index << 1004 MPI2_RPHI_MSIX_INDEX_SHIFT), &ioc->chip->ReplyPostHostIndex); 1005 atomic_dec(&reply_q->busy); 1006 return IRQ_HANDLED; 1007} 1008 1009/** 1010 * _base_is_controller_msix_enabled - is controller support muli-reply queues 1011 * @ioc: per adapter object 1012 * 1013 */ 1014static inline int 1015_base_is_controller_msix_enabled(struct MPT2SAS_ADAPTER *ioc) 1016{ 1017 return (ioc->facts.IOCCapabilities & 1018 MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX) && ioc->msix_enable; 1019} 1020 1021/** 1022 * mpt2sas_base_flush_reply_queues - flushing the MSIX reply queues 1023 * @ioc: per adapter object 1024 * Context: ISR conext 1025 * 1026 * Called when a Task Management request has completed. We want 1027 * to flush the other reply queues so all the outstanding IO has been 1028 * completed back to OS before we process the TM completetion. 1029 * 1030 * Return nothing. 1031 */ 1032void 1033mpt2sas_base_flush_reply_queues(struct MPT2SAS_ADAPTER *ioc) 1034{ 1035 struct adapter_reply_queue *reply_q; 1036 1037 /* If MSIX capability is turned off 1038 * then multi-queues are not enabled 1039 */ 1040 if (!_base_is_controller_msix_enabled(ioc)) 1041 return; 1042 1043 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) { 1044 if (ioc->shost_recovery) 1045 return; 1046 /* TMs are on msix_index == 0 */ 1047 if (reply_q->msix_index == 0) 1048 continue; 1049 _base_interrupt(reply_q->vector, (void *)reply_q); 1050 } 1051} 1052 1053/** 1054 * mpt2sas_base_release_callback_handler - clear interrupt callback handler 1055 * @cb_idx: callback index 1056 * 1057 * Return nothing. 1058 */ 1059void 1060mpt2sas_base_release_callback_handler(u8 cb_idx) 1061{ 1062 mpt_callbacks[cb_idx] = NULL; 1063} 1064 1065/** 1066 * mpt2sas_base_register_callback_handler - obtain index for the interrupt callback handler 1067 * @cb_func: callback function 1068 * 1069 * Returns cb_func. 1070 */ 1071u8 1072mpt2sas_base_register_callback_handler(MPT_CALLBACK cb_func) 1073{ 1074 u8 cb_idx; 1075 1076 for (cb_idx = MPT_MAX_CALLBACKS-1; cb_idx; cb_idx--) 1077 if (mpt_callbacks[cb_idx] == NULL) 1078 break; 1079 1080 mpt_callbacks[cb_idx] = cb_func; 1081 return cb_idx; 1082} 1083 1084/** 1085 * mpt2sas_base_initialize_callback_handler - initialize the interrupt callback handler 1086 * 1087 * Return nothing. 1088 */ 1089void 1090mpt2sas_base_initialize_callback_handler(void) 1091{ 1092 u8 cb_idx; 1093 1094 for (cb_idx = 0; cb_idx < MPT_MAX_CALLBACKS; cb_idx++) 1095 mpt2sas_base_release_callback_handler(cb_idx); 1096} 1097 1098/** 1099 * mpt2sas_base_build_zero_len_sge - build zero length sg entry 1100 * @ioc: per adapter object 1101 * @paddr: virtual address for SGE 1102 * 1103 * Create a zero length scatter gather entry to insure the IOCs hardware has 1104 * something to use if the target device goes brain dead and tries 1105 * to send data even when none is asked for. 1106 * 1107 * Return nothing. 1108 */ 1109void 1110mpt2sas_base_build_zero_len_sge(struct MPT2SAS_ADAPTER *ioc, void *paddr) 1111{ 1112 u32 flags_length = (u32)((MPI2_SGE_FLAGS_LAST_ELEMENT | 1113 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST | 1114 MPI2_SGE_FLAGS_SIMPLE_ELEMENT) << 1115 MPI2_SGE_FLAGS_SHIFT); 1116 ioc->base_add_sg_single(paddr, flags_length, -1); 1117} 1118 1119/** 1120 * _base_add_sg_single_32 - Place a simple 32 bit SGE at address pAddr. 1121 * @paddr: virtual address for SGE 1122 * @flags_length: SGE flags and data transfer length 1123 * @dma_addr: Physical address 1124 * 1125 * Return nothing. 1126 */ 1127static void 1128_base_add_sg_single_32(void *paddr, u32 flags_length, dma_addr_t dma_addr) 1129{ 1130 Mpi2SGESimple32_t *sgel = paddr; 1131 1132 flags_length |= (MPI2_SGE_FLAGS_32_BIT_ADDRESSING | 1133 MPI2_SGE_FLAGS_SYSTEM_ADDRESS) << MPI2_SGE_FLAGS_SHIFT; 1134 sgel->FlagsLength = cpu_to_le32(flags_length); 1135 sgel->Address = cpu_to_le32(dma_addr); 1136} 1137 1138 1139/** 1140 * _base_add_sg_single_64 - Place a simple 64 bit SGE at address pAddr. 1141 * @paddr: virtual address for SGE 1142 * @flags_length: SGE flags and data transfer length 1143 * @dma_addr: Physical address 1144 * 1145 * Return nothing. 1146 */ 1147static void 1148_base_add_sg_single_64(void *paddr, u32 flags_length, dma_addr_t dma_addr) 1149{ 1150 Mpi2SGESimple64_t *sgel = paddr; 1151 1152 flags_length |= (MPI2_SGE_FLAGS_64_BIT_ADDRESSING | 1153 MPI2_SGE_FLAGS_SYSTEM_ADDRESS) << MPI2_SGE_FLAGS_SHIFT; 1154 sgel->FlagsLength = cpu_to_le32(flags_length); 1155 sgel->Address = cpu_to_le64(dma_addr); 1156} 1157 1158#define convert_to_kb(x) ((x) << (PAGE_SHIFT - 10)) 1159 1160/** 1161 * _base_config_dma_addressing - set dma addressing 1162 * @ioc: per adapter object 1163 * @pdev: PCI device struct 1164 * 1165 * Returns 0 for success, non-zero for failure. 1166 */ 1167static int 1168_base_config_dma_addressing(struct MPT2SAS_ADAPTER *ioc, struct pci_dev *pdev) 1169{ 1170 struct sysinfo s; 1171 char *desc = NULL; 1172 1173 if (sizeof(dma_addr_t) > 4) { 1174 const uint64_t required_mask = 1175 dma_get_required_mask(&pdev->dev); 1176 if ((required_mask > DMA_BIT_MASK(32)) && !pci_set_dma_mask(pdev, 1177 DMA_BIT_MASK(64)) && !pci_set_consistent_dma_mask(pdev, 1178 DMA_BIT_MASK(64))) { 1179 ioc->base_add_sg_single = &_base_add_sg_single_64; 1180 ioc->sge_size = sizeof(Mpi2SGESimple64_t); 1181 desc = "64"; 1182 goto out; 1183 } 1184 } 1185 1186 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) 1187 && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) { 1188 ioc->base_add_sg_single = &_base_add_sg_single_32; 1189 ioc->sge_size = sizeof(Mpi2SGESimple32_t); 1190 desc = "32"; 1191 } else 1192 return -ENODEV; 1193 1194 out: 1195 si_meminfo(&s); 1196 printk(MPT2SAS_INFO_FMT "%s BIT PCI BUS DMA ADDRESSING SUPPORTED, " 1197 "total mem (%ld kB)\n", ioc->name, desc, convert_to_kb(s.totalram)); 1198 1199 return 0; 1200} 1201 1202/** 1203 * _base_check_enable_msix - checks MSIX capabable. 1204 * @ioc: per adapter object 1205 * 1206 * Check to see if card is capable of MSIX, and set number 1207 * of available msix vectors 1208 */ 1209static int 1210_base_check_enable_msix(struct MPT2SAS_ADAPTER *ioc) 1211{ 1212 int base; 1213 u16 message_control; 1214 1215 1216 base = pci_find_capability(ioc->pdev, PCI_CAP_ID_MSIX); 1217 if (!base) { 1218 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "msix not " 1219 "supported\n", ioc->name)); 1220 return -EINVAL; 1221 } 1222 1223 /* get msix vector count */ 1224 /* NUMA_IO not supported for older controllers */ 1225 if (ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2004 || 1226 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2008 || 1227 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2108_1 || 1228 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2108_2 || 1229 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2108_3 || 1230 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2116_1 || 1231 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2116_2) 1232 ioc->msix_vector_count = 1; 1233 else { 1234 pci_read_config_word(ioc->pdev, base + 2, &message_control); 1235 ioc->msix_vector_count = (message_control & 0x3FF) + 1; 1236 } 1237 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "msix is supported, " 1238 "vector_count(%d)\n", ioc->name, ioc->msix_vector_count)); 1239 1240 return 0; 1241} 1242 1243/** 1244 * _base_free_irq - free irq 1245 * @ioc: per adapter object 1246 * 1247 * Freeing respective reply_queue from the list. 1248 */ 1249static void 1250_base_free_irq(struct MPT2SAS_ADAPTER *ioc) 1251{ 1252 struct adapter_reply_queue *reply_q, *next; 1253 1254 if (list_empty(&ioc->reply_queue_list)) 1255 return; 1256 1257 list_for_each_entry_safe(reply_q, next, &ioc->reply_queue_list, list) { 1258 list_del(&reply_q->list); 1259 synchronize_irq(reply_q->vector); 1260 free_irq(reply_q->vector, reply_q); 1261 kfree(reply_q); 1262 } 1263} 1264 1265/** 1266 * _base_request_irq - request irq 1267 * @ioc: per adapter object 1268 * @index: msix index into vector table 1269 * @vector: irq vector 1270 * 1271 * Inserting respective reply_queue into the list. 1272 */ 1273static int 1274_base_request_irq(struct MPT2SAS_ADAPTER *ioc, u8 index, u32 vector) 1275{ 1276 struct adapter_reply_queue *reply_q; 1277 int r; 1278 1279 reply_q = kzalloc(sizeof(struct adapter_reply_queue), GFP_KERNEL); 1280 if (!reply_q) { 1281 printk(MPT2SAS_ERR_FMT "unable to allocate memory %d!\n", 1282 ioc->name, (int)sizeof(struct adapter_reply_queue)); 1283 return -ENOMEM; 1284 } 1285 reply_q->ioc = ioc; 1286 reply_q->msix_index = index; 1287 reply_q->vector = vector; 1288 atomic_set(&reply_q->busy, 0); 1289 if (ioc->msix_enable) 1290 snprintf(reply_q->name, MPT_NAME_LENGTH, "%s%d-msix%d", 1291 MPT2SAS_DRIVER_NAME, ioc->id, index); 1292 else 1293 snprintf(reply_q->name, MPT_NAME_LENGTH, "%s%d", 1294 MPT2SAS_DRIVER_NAME, ioc->id); 1295 r = request_irq(vector, _base_interrupt, IRQF_SHARED, reply_q->name, 1296 reply_q); 1297 if (r) { 1298 printk(MPT2SAS_ERR_FMT "unable to allocate interrupt %d!\n", 1299 reply_q->name, vector); 1300 kfree(reply_q); 1301 return -EBUSY; 1302 } 1303 1304 INIT_LIST_HEAD(&reply_q->list); 1305 list_add_tail(&reply_q->list, &ioc->reply_queue_list); 1306 return 0; 1307} 1308 1309/** 1310 * _base_assign_reply_queues - assigning msix index for each cpu 1311 * @ioc: per adapter object 1312 * 1313 * The enduser would need to set the affinity via /proc/irq/#/smp_affinity 1314 * 1315 * It would nice if we could call irq_set_affinity, however it is not 1316 * an exported symbol 1317 */ 1318static void 1319_base_assign_reply_queues(struct MPT2SAS_ADAPTER *ioc) 1320{ 1321 struct adapter_reply_queue *reply_q; 1322 int cpu_id; 1323 int cpu_grouping, loop, grouping, grouping_mod; 1324 1325 if (!_base_is_controller_msix_enabled(ioc)) 1326 return; 1327 1328 memset(ioc->cpu_msix_table, 0, ioc->cpu_msix_table_sz); 1329 /* when there are more cpus than available msix vectors, 1330 * then group cpus togeather on same irq 1331 */ 1332 if (ioc->cpu_count > ioc->msix_vector_count) { 1333 grouping = ioc->cpu_count / ioc->msix_vector_count; 1334 grouping_mod = ioc->cpu_count % ioc->msix_vector_count; 1335 if (grouping < 2 || (grouping == 2 && !grouping_mod)) 1336 cpu_grouping = 2; 1337 else if (grouping < 4 || (grouping == 4 && !grouping_mod)) 1338 cpu_grouping = 4; 1339 else if (grouping < 8 || (grouping == 8 && !grouping_mod)) 1340 cpu_grouping = 8; 1341 else 1342 cpu_grouping = 16; 1343 } else 1344 cpu_grouping = 0; 1345 1346 loop = 0; 1347 reply_q = list_entry(ioc->reply_queue_list.next, 1348 struct adapter_reply_queue, list); 1349 for_each_online_cpu(cpu_id) { 1350 if (!cpu_grouping) { 1351 ioc->cpu_msix_table[cpu_id] = reply_q->msix_index; 1352 reply_q = list_entry(reply_q->list.next, 1353 struct adapter_reply_queue, list); 1354 } else { 1355 if (loop < cpu_grouping) { 1356 ioc->cpu_msix_table[cpu_id] = 1357 reply_q->msix_index; 1358 loop++; 1359 } else { 1360 reply_q = list_entry(reply_q->list.next, 1361 struct adapter_reply_queue, list); 1362 ioc->cpu_msix_table[cpu_id] = 1363 reply_q->msix_index; 1364 loop = 1; 1365 } 1366 } 1367 } 1368} 1369 1370/** 1371 * _base_disable_msix - disables msix 1372 * @ioc: per adapter object 1373 * 1374 */ 1375static void 1376_base_disable_msix(struct MPT2SAS_ADAPTER *ioc) 1377{ 1378 if (ioc->msix_enable) { 1379 pci_disable_msix(ioc->pdev); 1380 ioc->msix_enable = 0; 1381 } 1382} 1383 1384/** 1385 * _base_enable_msix - enables msix, failback to io_apic 1386 * @ioc: per adapter object 1387 * 1388 */ 1389static int 1390_base_enable_msix(struct MPT2SAS_ADAPTER *ioc) 1391{ 1392 struct msix_entry *entries, *a; 1393 int r; 1394 int i; 1395 u8 try_msix = 0; 1396 1397 INIT_LIST_HEAD(&ioc->reply_queue_list); 1398 1399 if (msix_disable == -1 || msix_disable == 0) 1400 try_msix = 1; 1401 1402 if (!try_msix) 1403 goto try_ioapic; 1404 1405 if (_base_check_enable_msix(ioc) != 0) 1406 goto try_ioapic; 1407 1408 ioc->reply_queue_count = min_t(u8, ioc->cpu_count, 1409 ioc->msix_vector_count); 1410 1411 entries = kcalloc(ioc->reply_queue_count, sizeof(struct msix_entry), 1412 GFP_KERNEL); 1413 if (!entries) { 1414 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "kcalloc " 1415 "failed @ at %s:%d/%s() !!!\n", ioc->name, __FILE__, 1416 __LINE__, __func__)); 1417 goto try_ioapic; 1418 } 1419 1420 for (i = 0, a = entries; i < ioc->reply_queue_count; i++, a++) 1421 a->entry = i; 1422 1423 r = pci_enable_msix(ioc->pdev, entries, ioc->reply_queue_count); 1424 if (r) { 1425 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "pci_enable_msix " 1426 "failed (r=%d) !!!\n", ioc->name, r)); 1427 kfree(entries); 1428 goto try_ioapic; 1429 } 1430 1431 ioc->msix_enable = 1; 1432 for (i = 0, a = entries; i < ioc->reply_queue_count; i++, a++) { 1433 r = _base_request_irq(ioc, i, a->vector); 1434 if (r) { 1435 _base_free_irq(ioc); 1436 _base_disable_msix(ioc); 1437 kfree(entries); 1438 goto try_ioapic; 1439 } 1440 } 1441 1442 kfree(entries); 1443 return 0; 1444 1445/* failback to io_apic interrupt routing */ 1446 try_ioapic: 1447 1448 r = _base_request_irq(ioc, 0, ioc->pdev->irq); 1449 1450 return r; 1451} 1452 1453/** 1454 * mpt2sas_base_map_resources - map in controller resources (io/irq/memap) 1455 * @ioc: per adapter object 1456 * 1457 * Returns 0 for success, non-zero for failure. 1458 */ 1459int 1460mpt2sas_base_map_resources(struct MPT2SAS_ADAPTER *ioc) 1461{ 1462 struct pci_dev *pdev = ioc->pdev; 1463 u32 memap_sz; 1464 u32 pio_sz; 1465 int i, r = 0; 1466 u64 pio_chip = 0; 1467 u64 chip_phys = 0; 1468 struct adapter_reply_queue *reply_q; 1469 1470 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", 1471 ioc->name, __func__)); 1472 1473 ioc->bars = pci_select_bars(pdev, IORESOURCE_MEM); 1474 if (pci_enable_device_mem(pdev)) { 1475 printk(MPT2SAS_WARN_FMT "pci_enable_device_mem: " 1476 "failed\n", ioc->name); 1477 return -ENODEV; 1478 } 1479 1480 1481 if (pci_request_selected_regions(pdev, ioc->bars, 1482 MPT2SAS_DRIVER_NAME)) { 1483 printk(MPT2SAS_WARN_FMT "pci_request_selected_regions: " 1484 "failed\n", ioc->name); 1485 r = -ENODEV; 1486 goto out_fail; 1487 } 1488 1489 /* AER (Advanced Error Reporting) hooks */ 1490 pci_enable_pcie_error_reporting(pdev); 1491 1492 pci_set_master(pdev); 1493 1494 if (_base_config_dma_addressing(ioc, pdev) != 0) { 1495 printk(MPT2SAS_WARN_FMT "no suitable DMA mask for %s\n", 1496 ioc->name, pci_name(pdev)); 1497 r = -ENODEV; 1498 goto out_fail; 1499 } 1500 1501 for (i = 0, memap_sz = 0, pio_sz = 0 ; i < DEVICE_COUNT_RESOURCE; i++) { 1502 if (pci_resource_flags(pdev, i) & IORESOURCE_IO) { 1503 if (pio_sz) 1504 continue; 1505 pio_chip = (u64)pci_resource_start(pdev, i); 1506 pio_sz = pci_resource_len(pdev, i); 1507 } else { 1508 if (memap_sz) 1509 continue; 1510 /* verify memory resource is valid before using */ 1511 if (pci_resource_flags(pdev, i) & IORESOURCE_MEM) { 1512 ioc->chip_phys = pci_resource_start(pdev, i); 1513 chip_phys = (u64)ioc->chip_phys; 1514 memap_sz = pci_resource_len(pdev, i); 1515 ioc->chip = ioremap(ioc->chip_phys, memap_sz); 1516 if (ioc->chip == NULL) { 1517 printk(MPT2SAS_ERR_FMT "unable to map " 1518 "adapter memory!\n", ioc->name); 1519 r = -EINVAL; 1520 goto out_fail; 1521 } 1522 } 1523 } 1524 } 1525 1526 _base_mask_interrupts(ioc); 1527 r = _base_enable_msix(ioc); 1528 if (r) 1529 goto out_fail; 1530 1531 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) 1532 printk(MPT2SAS_INFO_FMT "%s: IRQ %d\n", 1533 reply_q->name, ((ioc->msix_enable) ? "PCI-MSI-X enabled" : 1534 "IO-APIC enabled"), reply_q->vector); 1535 1536 printk(MPT2SAS_INFO_FMT "iomem(0x%016llx), mapped(0x%p), size(%d)\n", 1537 ioc->name, (unsigned long long)chip_phys, ioc->chip, memap_sz); 1538 printk(MPT2SAS_INFO_FMT "ioport(0x%016llx), size(%d)\n", 1539 ioc->name, (unsigned long long)pio_chip, pio_sz); 1540 1541 /* Save PCI configuration state for recovery from PCI AER/EEH errors */ 1542 pci_save_state(pdev); 1543 1544 return 0; 1545 1546 out_fail: 1547 if (ioc->chip_phys) 1548 iounmap(ioc->chip); 1549 ioc->chip_phys = 0; 1550 pci_release_selected_regions(ioc->pdev, ioc->bars); 1551 pci_disable_pcie_error_reporting(pdev); 1552 pci_disable_device(pdev); 1553 return r; 1554} 1555 1556/** 1557 * mpt2sas_base_get_msg_frame - obtain request mf pointer 1558 * @ioc: per adapter object 1559 * @smid: system request message index(smid zero is invalid) 1560 * 1561 * Returns virt pointer to message frame. 1562 */ 1563void * 1564mpt2sas_base_get_msg_frame(struct MPT2SAS_ADAPTER *ioc, u16 smid) 1565{ 1566 return (void *)(ioc->request + (smid * ioc->request_sz)); 1567} 1568 1569/** 1570 * mpt2sas_base_get_sense_buffer - obtain a sense buffer assigned to a mf request 1571 * @ioc: per adapter object 1572 * @smid: system request message index 1573 * 1574 * Returns virt pointer to sense buffer. 1575 */ 1576void * 1577mpt2sas_base_get_sense_buffer(struct MPT2SAS_ADAPTER *ioc, u16 smid) 1578{ 1579 return (void *)(ioc->sense + ((smid - 1) * SCSI_SENSE_BUFFERSIZE)); 1580} 1581 1582/** 1583 * mpt2sas_base_get_sense_buffer_dma - obtain a sense buffer assigned to a mf request 1584 * @ioc: per adapter object 1585 * @smid: system request message index 1586 * 1587 * Returns phys pointer to the low 32bit address of the sense buffer. 1588 */ 1589__le32 1590mpt2sas_base_get_sense_buffer_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid) 1591{ 1592 return cpu_to_le32(ioc->sense_dma + 1593 ((smid - 1) * SCSI_SENSE_BUFFERSIZE)); 1594} 1595 1596/** 1597 * mpt2sas_base_get_reply_virt_addr - obtain reply frames virt address 1598 * @ioc: per adapter object 1599 * @phys_addr: lower 32 physical addr of the reply 1600 * 1601 * Converts 32bit lower physical addr into a virt address. 1602 */ 1603void * 1604mpt2sas_base_get_reply_virt_addr(struct MPT2SAS_ADAPTER *ioc, u32 phys_addr) 1605{ 1606 if (!phys_addr) 1607 return NULL; 1608 return ioc->reply + (phys_addr - (u32)ioc->reply_dma); 1609} 1610 1611/** 1612 * mpt2sas_base_get_smid - obtain a free smid from internal queue 1613 * @ioc: per adapter object 1614 * @cb_idx: callback index 1615 * 1616 * Returns smid (zero is invalid) 1617 */ 1618u16 1619mpt2sas_base_get_smid(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx) 1620{ 1621 unsigned long flags; 1622 struct request_tracker *request; 1623 u16 smid; 1624 1625 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 1626 if (list_empty(&ioc->internal_free_list)) { 1627 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1628 printk(MPT2SAS_ERR_FMT "%s: smid not available\n", 1629 ioc->name, __func__); 1630 return 0; 1631 } 1632 1633 request = list_entry(ioc->internal_free_list.next, 1634 struct request_tracker, tracker_list); 1635 request->cb_idx = cb_idx; 1636 smid = request->smid; 1637 list_del(&request->tracker_list); 1638 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1639 return smid; 1640} 1641 1642/** 1643 * mpt2sas_base_get_smid_scsiio - obtain a free smid from scsiio queue 1644 * @ioc: per adapter object 1645 * @cb_idx: callback index 1646 * @scmd: pointer to scsi command object 1647 * 1648 * Returns smid (zero is invalid) 1649 */ 1650u16 1651mpt2sas_base_get_smid_scsiio(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx, 1652 struct scsi_cmnd *scmd) 1653{ 1654 unsigned long flags; 1655 struct scsiio_tracker *request; 1656 u16 smid; 1657 1658 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 1659 if (list_empty(&ioc->free_list)) { 1660 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1661 printk(MPT2SAS_ERR_FMT "%s: smid not available\n", 1662 ioc->name, __func__); 1663 return 0; 1664 } 1665 1666 request = list_entry(ioc->free_list.next, 1667 struct scsiio_tracker, tracker_list); 1668 request->scmd = scmd; 1669 request->cb_idx = cb_idx; 1670 smid = request->smid; 1671 list_del(&request->tracker_list); 1672 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1673 return smid; 1674} 1675 1676/** 1677 * mpt2sas_base_get_smid_hpr - obtain a free smid from hi-priority queue 1678 * @ioc: per adapter object 1679 * @cb_idx: callback index 1680 * 1681 * Returns smid (zero is invalid) 1682 */ 1683u16 1684mpt2sas_base_get_smid_hpr(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx) 1685{ 1686 unsigned long flags; 1687 struct request_tracker *request; 1688 u16 smid; 1689 1690 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 1691 if (list_empty(&ioc->hpr_free_list)) { 1692 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1693 return 0; 1694 } 1695 1696 request = list_entry(ioc->hpr_free_list.next, 1697 struct request_tracker, tracker_list); 1698 request->cb_idx = cb_idx; 1699 smid = request->smid; 1700 list_del(&request->tracker_list); 1701 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1702 return smid; 1703} 1704 1705 1706/** 1707 * mpt2sas_base_free_smid - put smid back on free_list 1708 * @ioc: per adapter object 1709 * @smid: system request message index 1710 * 1711 * Return nothing. 1712 */ 1713void 1714mpt2sas_base_free_smid(struct MPT2SAS_ADAPTER *ioc, u16 smid) 1715{ 1716 unsigned long flags; 1717 int i; 1718 struct chain_tracker *chain_req, *next; 1719 1720 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 1721 if (smid < ioc->hi_priority_smid) { 1722 /* scsiio queue */ 1723 i = smid - 1; 1724 if (!list_empty(&ioc->scsi_lookup[i].chain_list)) { 1725 list_for_each_entry_safe(chain_req, next, 1726 &ioc->scsi_lookup[i].chain_list, tracker_list) { 1727 list_del_init(&chain_req->tracker_list); 1728 list_add_tail(&chain_req->tracker_list, 1729 &ioc->free_chain_list); 1730 } 1731 } 1732 ioc->scsi_lookup[i].cb_idx = 0xFF; 1733 ioc->scsi_lookup[i].scmd = NULL; 1734 ioc->scsi_lookup[i].direct_io = 0; 1735 list_add_tail(&ioc->scsi_lookup[i].tracker_list, 1736 &ioc->free_list); 1737 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1738 1739 /* 1740 * See _wait_for_commands_to_complete() call with regards 1741 * to this code. 1742 */ 1743 if (ioc->shost_recovery && ioc->pending_io_count) { 1744 if (ioc->pending_io_count == 1) 1745 wake_up(&ioc->reset_wq); 1746 ioc->pending_io_count--; 1747 } 1748 return; 1749 } else if (smid < ioc->internal_smid) { 1750 /* hi-priority */ 1751 i = smid - ioc->hi_priority_smid; 1752 ioc->hpr_lookup[i].cb_idx = 0xFF; 1753 list_add_tail(&ioc->hpr_lookup[i].tracker_list, 1754 &ioc->hpr_free_list); 1755 } else if (smid <= ioc->hba_queue_depth) { 1756 /* internal queue */ 1757 i = smid - ioc->internal_smid; 1758 ioc->internal_lookup[i].cb_idx = 0xFF; 1759 list_add_tail(&ioc->internal_lookup[i].tracker_list, 1760 &ioc->internal_free_list); 1761 } 1762 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1763} 1764 1765/** 1766 * _base_writeq - 64 bit write to MMIO 1767 * @ioc: per adapter object 1768 * @b: data payload 1769 * @addr: address in MMIO space 1770 * @writeq_lock: spin lock 1771 * 1772 * Glue for handling an atomic 64 bit word to MMIO. This special handling takes 1773 * care of 32 bit environment where its not quarenteed to send the entire word 1774 * in one transfer. 1775 */ 1776#ifndef writeq 1777static inline void _base_writeq(__u64 b, volatile void __iomem *addr, 1778 spinlock_t *writeq_lock) 1779{ 1780 unsigned long flags; 1781 __u64 data_out = cpu_to_le64(b); 1782 1783 spin_lock_irqsave(writeq_lock, flags); 1784 writel((u32)(data_out), addr); 1785 writel((u32)(data_out >> 32), (addr + 4)); 1786 spin_unlock_irqrestore(writeq_lock, flags); 1787} 1788#else 1789static inline void _base_writeq(__u64 b, volatile void __iomem *addr, 1790 spinlock_t *writeq_lock) 1791{ 1792 writeq(cpu_to_le64(b), addr); 1793} 1794#endif 1795 1796static inline u8 1797_base_get_msix_index(struct MPT2SAS_ADAPTER *ioc) 1798{ 1799 return ioc->cpu_msix_table[smp_processor_id()]; 1800} 1801 1802/** 1803 * mpt2sas_base_put_smid_scsi_io - send SCSI_IO request to firmware 1804 * @ioc: per adapter object 1805 * @smid: system request message index 1806 * @handle: device handle 1807 * 1808 * Return nothing. 1809 */ 1810void 1811mpt2sas_base_put_smid_scsi_io(struct MPT2SAS_ADAPTER *ioc, u16 smid, u16 handle) 1812{ 1813 Mpi2RequestDescriptorUnion_t descriptor; 1814 u64 *request = (u64 *)&descriptor; 1815 1816 1817 descriptor.SCSIIO.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO; 1818 descriptor.SCSIIO.MSIxIndex = _base_get_msix_index(ioc); 1819 descriptor.SCSIIO.SMID = cpu_to_le16(smid); 1820 descriptor.SCSIIO.DevHandle = cpu_to_le16(handle); 1821 descriptor.SCSIIO.LMID = 0; 1822 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow, 1823 &ioc->scsi_lookup_lock); 1824} 1825 1826 1827/** 1828 * mpt2sas_base_put_smid_hi_priority - send Task Management request to firmware 1829 * @ioc: per adapter object 1830 * @smid: system request message index 1831 * 1832 * Return nothing. 1833 */ 1834void 1835mpt2sas_base_put_smid_hi_priority(struct MPT2SAS_ADAPTER *ioc, u16 smid) 1836{ 1837 Mpi2RequestDescriptorUnion_t descriptor; 1838 u64 *request = (u64 *)&descriptor; 1839 1840 descriptor.HighPriority.RequestFlags = 1841 MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY; 1842 descriptor.HighPriority.MSIxIndex = 0; 1843 descriptor.HighPriority.SMID = cpu_to_le16(smid); 1844 descriptor.HighPriority.LMID = 0; 1845 descriptor.HighPriority.Reserved1 = 0; 1846 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow, 1847 &ioc->scsi_lookup_lock); 1848} 1849 1850/** 1851 * mpt2sas_base_put_smid_default - Default, primarily used for config pages 1852 * @ioc: per adapter object 1853 * @smid: system request message index 1854 * 1855 * Return nothing. 1856 */ 1857void 1858mpt2sas_base_put_smid_default(struct MPT2SAS_ADAPTER *ioc, u16 smid) 1859{ 1860 Mpi2RequestDescriptorUnion_t descriptor; 1861 u64 *request = (u64 *)&descriptor; 1862 1863 descriptor.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE; 1864 descriptor.Default.MSIxIndex = _base_get_msix_index(ioc); 1865 descriptor.Default.SMID = cpu_to_le16(smid); 1866 descriptor.Default.LMID = 0; 1867 descriptor.Default.DescriptorTypeDependent = 0; 1868 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow, 1869 &ioc->scsi_lookup_lock); 1870} 1871 1872/** 1873 * mpt2sas_base_put_smid_target_assist - send Target Assist/Status to firmware 1874 * @ioc: per adapter object 1875 * @smid: system request message index 1876 * @io_index: value used to track the IO 1877 * 1878 * Return nothing. 1879 */ 1880void 1881mpt2sas_base_put_smid_target_assist(struct MPT2SAS_ADAPTER *ioc, u16 smid, 1882 u16 io_index) 1883{ 1884 Mpi2RequestDescriptorUnion_t descriptor; 1885 u64 *request = (u64 *)&descriptor; 1886 1887 descriptor.SCSITarget.RequestFlags = 1888 MPI2_REQ_DESCRIPT_FLAGS_SCSI_TARGET; 1889 descriptor.SCSITarget.MSIxIndex = _base_get_msix_index(ioc); 1890 descriptor.SCSITarget.SMID = cpu_to_le16(smid); 1891 descriptor.SCSITarget.LMID = 0; 1892 descriptor.SCSITarget.IoIndex = cpu_to_le16(io_index); 1893 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow, 1894 &ioc->scsi_lookup_lock); 1895} 1896 1897/** 1898 * _base_display_dell_branding - Disply branding string 1899 * @ioc: per adapter object 1900 * 1901 * Return nothing. 1902 */ 1903static void 1904_base_display_dell_branding(struct MPT2SAS_ADAPTER *ioc) 1905{ 1906 char dell_branding[MPT2SAS_DELL_BRANDING_SIZE]; 1907 1908 if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_DELL) 1909 return; 1910 1911 memset(dell_branding, 0, MPT2SAS_DELL_BRANDING_SIZE); 1912 switch (ioc->pdev->subsystem_device) { 1913 case MPT2SAS_DELL_6GBPS_SAS_HBA_SSDID: 1914 strncpy(dell_branding, MPT2SAS_DELL_6GBPS_SAS_HBA_BRANDING, 1915 MPT2SAS_DELL_BRANDING_SIZE - 1); 1916 break; 1917 case MPT2SAS_DELL_PERC_H200_ADAPTER_SSDID: 1918 strncpy(dell_branding, MPT2SAS_DELL_PERC_H200_ADAPTER_BRANDING, 1919 MPT2SAS_DELL_BRANDING_SIZE - 1); 1920 break; 1921 case MPT2SAS_DELL_PERC_H200_INTEGRATED_SSDID: 1922 strncpy(dell_branding, 1923 MPT2SAS_DELL_PERC_H200_INTEGRATED_BRANDING, 1924 MPT2SAS_DELL_BRANDING_SIZE - 1); 1925 break; 1926 case MPT2SAS_DELL_PERC_H200_MODULAR_SSDID: 1927 strncpy(dell_branding, 1928 MPT2SAS_DELL_PERC_H200_MODULAR_BRANDING, 1929 MPT2SAS_DELL_BRANDING_SIZE - 1); 1930 break; 1931 case MPT2SAS_DELL_PERC_H200_EMBEDDED_SSDID: 1932 strncpy(dell_branding, 1933 MPT2SAS_DELL_PERC_H200_EMBEDDED_BRANDING, 1934 MPT2SAS_DELL_BRANDING_SIZE - 1); 1935 break; 1936 case MPT2SAS_DELL_PERC_H200_SSDID: 1937 strncpy(dell_branding, MPT2SAS_DELL_PERC_H200_BRANDING, 1938 MPT2SAS_DELL_BRANDING_SIZE - 1); 1939 break; 1940 case MPT2SAS_DELL_6GBPS_SAS_SSDID: 1941 strncpy(dell_branding, MPT2SAS_DELL_6GBPS_SAS_BRANDING, 1942 MPT2SAS_DELL_BRANDING_SIZE - 1); 1943 break; 1944 default: 1945 sprintf(dell_branding, "0x%4X", ioc->pdev->subsystem_device); 1946 break; 1947 } 1948 1949 printk(MPT2SAS_INFO_FMT "%s: Vendor(0x%04X), Device(0x%04X)," 1950 " SSVID(0x%04X), SSDID(0x%04X)\n", ioc->name, dell_branding, 1951 ioc->pdev->vendor, ioc->pdev->device, ioc->pdev->subsystem_vendor, 1952 ioc->pdev->subsystem_device); 1953} 1954 1955/** 1956 * _base_display_intel_branding - Display branding string 1957 * @ioc: per adapter object 1958 * 1959 * Return nothing. 1960 */ 1961static void 1962_base_display_intel_branding(struct MPT2SAS_ADAPTER *ioc) 1963{ 1964 if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_INTEL) 1965 return; 1966 1967 switch (ioc->pdev->device) { 1968 case MPI2_MFGPAGE_DEVID_SAS2008: 1969 switch (ioc->pdev->subsystem_device) { 1970 case MPT2SAS_INTEL_RMS2LL080_SSDID: 1971 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 1972 MPT2SAS_INTEL_RMS2LL080_BRANDING); 1973 break; 1974 case MPT2SAS_INTEL_RMS2LL040_SSDID: 1975 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 1976 MPT2SAS_INTEL_RMS2LL040_BRANDING); 1977 break; 1978 case MPT2SAS_INTEL_RAMSDALE_SSDID: 1979 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 1980 MPT2SAS_INTEL_RAMSDALE_BRANDING); 1981 break; 1982 default: 1983 break; 1984 } 1985 case MPI2_MFGPAGE_DEVID_SAS2308_2: 1986 switch (ioc->pdev->subsystem_device) { 1987 case MPT2SAS_INTEL_RS25GB008_SSDID: 1988 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 1989 MPT2SAS_INTEL_RS25GB008_BRANDING); 1990 break; 1991 case MPT2SAS_INTEL_RMS25JB080_SSDID: 1992 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 1993 MPT2SAS_INTEL_RMS25JB080_BRANDING); 1994 break; 1995 case MPT2SAS_INTEL_RMS25JB040_SSDID: 1996 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 1997 MPT2SAS_INTEL_RMS25JB040_BRANDING); 1998 break; 1999 case MPT2SAS_INTEL_RMS25KB080_SSDID: 2000 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2001 MPT2SAS_INTEL_RMS25KB080_BRANDING); 2002 break; 2003 case MPT2SAS_INTEL_RMS25KB040_SSDID: 2004 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2005 MPT2SAS_INTEL_RMS25KB040_BRANDING); 2006 break; 2007 default: 2008 break; 2009 } 2010 default: 2011 break; 2012 } 2013} 2014 2015/** 2016 * _base_display_hp_branding - Display branding string 2017 * @ioc: per adapter object 2018 * 2019 * Return nothing. 2020 */ 2021static void 2022_base_display_hp_branding(struct MPT2SAS_ADAPTER *ioc) 2023{ 2024 if (ioc->pdev->subsystem_vendor != MPT2SAS_HP_3PAR_SSVID) 2025 return; 2026 2027 switch (ioc->pdev->device) { 2028 case MPI2_MFGPAGE_DEVID_SAS2004: 2029 switch (ioc->pdev->subsystem_device) { 2030 case MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_SSDID: 2031 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2032 MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_BRANDING); 2033 break; 2034 default: 2035 break; 2036 } 2037 case MPI2_MFGPAGE_DEVID_SAS2308_2: 2038 switch (ioc->pdev->subsystem_device) { 2039 case MPT2SAS_HP_2_4_INTERNAL_SSDID: 2040 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2041 MPT2SAS_HP_2_4_INTERNAL_BRANDING); 2042 break; 2043 case MPT2SAS_HP_2_4_EXTERNAL_SSDID: 2044 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2045 MPT2SAS_HP_2_4_EXTERNAL_BRANDING); 2046 break; 2047 case MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_SSDID: 2048 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2049 MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_BRANDING); 2050 break; 2051 case MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_SSDID: 2052 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2053 MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_BRANDING); 2054 break; 2055 default: 2056 break; 2057 } 2058 default: 2059 break; 2060 } 2061} 2062 2063/** 2064 * _base_display_ioc_capabilities - Disply IOC's capabilities. 2065 * @ioc: per adapter object 2066 * 2067 * Return nothing. 2068 */ 2069static void 2070_base_display_ioc_capabilities(struct MPT2SAS_ADAPTER *ioc) 2071{ 2072 int i = 0; 2073 char desc[16]; 2074 u8 revision; 2075 u32 iounit_pg1_flags; 2076 u32 bios_version; 2077 2078 bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion); 2079 pci_read_config_byte(ioc->pdev, PCI_CLASS_REVISION, &revision); 2080 strncpy(desc, ioc->manu_pg0.ChipName, 16); 2081 printk(MPT2SAS_INFO_FMT "%s: FWVersion(%02d.%02d.%02d.%02d), " 2082 "ChipRevision(0x%02x), BiosVersion(%02d.%02d.%02d.%02d)\n", 2083 ioc->name, desc, 2084 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24, 2085 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16, 2086 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8, 2087 ioc->facts.FWVersion.Word & 0x000000FF, 2088 revision, 2089 (bios_version & 0xFF000000) >> 24, 2090 (bios_version & 0x00FF0000) >> 16, 2091 (bios_version & 0x0000FF00) >> 8, 2092 bios_version & 0x000000FF); 2093 2094 _base_display_dell_branding(ioc); 2095 _base_display_intel_branding(ioc); 2096 _base_display_hp_branding(ioc); 2097 2098 printk(MPT2SAS_INFO_FMT "Protocol=(", ioc->name); 2099 2100 if (ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR) { 2101 printk("Initiator"); 2102 i++; 2103 } 2104 2105 if (ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_TARGET) { 2106 printk("%sTarget", i ? "," : ""); 2107 i++; 2108 } 2109 2110 i = 0; 2111 printk("), "); 2112 printk("Capabilities=("); 2113 2114 if (!ioc->hide_ir_msg) { 2115 if (ioc->facts.IOCCapabilities & 2116 MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID) { 2117 printk("Raid"); 2118 i++; 2119 } 2120 } 2121 2122 if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR) { 2123 printk("%sTLR", i ? "," : ""); 2124 i++; 2125 } 2126 2127 if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_MULTICAST) { 2128 printk("%sMulticast", i ? "," : ""); 2129 i++; 2130 } 2131 2132 if (ioc->facts.IOCCapabilities & 2133 MPI2_IOCFACTS_CAPABILITY_BIDIRECTIONAL_TARGET) { 2134 printk("%sBIDI Target", i ? "," : ""); 2135 i++; 2136 } 2137 2138 if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_EEDP) { 2139 printk("%sEEDP", i ? "," : ""); 2140 i++; 2141 } 2142 2143 if (ioc->facts.IOCCapabilities & 2144 MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER) { 2145 printk("%sSnapshot Buffer", i ? "," : ""); 2146 i++; 2147 } 2148 2149 if (ioc->facts.IOCCapabilities & 2150 MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER) { 2151 printk("%sDiag Trace Buffer", i ? "," : ""); 2152 i++; 2153 } 2154 2155 if (ioc->facts.IOCCapabilities & 2156 MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER) { 2157 printk(KERN_INFO "%sDiag Extended Buffer", i ? "," : ""); 2158 i++; 2159 } 2160 2161 if (ioc->facts.IOCCapabilities & 2162 MPI2_IOCFACTS_CAPABILITY_TASK_SET_FULL_HANDLING) { 2163 printk("%sTask Set Full", i ? "," : ""); 2164 i++; 2165 } 2166 2167 iounit_pg1_flags = le32_to_cpu(ioc->iounit_pg1.Flags); 2168 if (!(iounit_pg1_flags & MPI2_IOUNITPAGE1_NATIVE_COMMAND_Q_DISABLE)) { 2169 printk("%sNCQ", i ? "," : ""); 2170 i++; 2171 } 2172 2173 printk(")\n"); 2174} 2175 2176/** 2177 * _base_update_missing_delay - change the missing delay timers 2178 * @ioc: per adapter object 2179 * @device_missing_delay: amount of time till device is reported missing 2180 * @io_missing_delay: interval IO is returned when there is a missing device 2181 * 2182 * Return nothing. 2183 * 2184 * Passed on the command line, this function will modify the device missing 2185 * delay, as well as the io missing delay. This should be called at driver 2186 * load time. 2187 */ 2188static void 2189_base_update_missing_delay(struct MPT2SAS_ADAPTER *ioc, 2190 u16 device_missing_delay, u8 io_missing_delay) 2191{ 2192 u16 dmd, dmd_new, dmd_orignal; 2193 u8 io_missing_delay_original; 2194 u16 sz; 2195 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL; 2196 Mpi2ConfigReply_t mpi_reply; 2197 u8 num_phys = 0; 2198 u16 ioc_status; 2199 2200 mpt2sas_config_get_number_hba_phys(ioc, &num_phys); 2201 if (!num_phys) 2202 return; 2203 2204 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (num_phys * 2205 sizeof(Mpi2SasIOUnit1PhyData_t)); 2206 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL); 2207 if (!sas_iounit_pg1) { 2208 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", 2209 ioc->name, __FILE__, __LINE__, __func__); 2210 goto out; 2211 } 2212 if ((mpt2sas_config_get_sas_iounit_pg1(ioc, &mpi_reply, 2213 sas_iounit_pg1, sz))) { 2214 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", 2215 ioc->name, __FILE__, __LINE__, __func__); 2216 goto out; 2217 } 2218 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 2219 MPI2_IOCSTATUS_MASK; 2220 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 2221 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", 2222 ioc->name, __FILE__, __LINE__, __func__); 2223 goto out; 2224 } 2225 2226 /* device missing delay */ 2227 dmd = sas_iounit_pg1->ReportDeviceMissingDelay; 2228 if (dmd & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16) 2229 dmd = (dmd & MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16; 2230 else 2231 dmd = dmd & MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK; 2232 dmd_orignal = dmd; 2233 if (device_missing_delay > 0x7F) { 2234 dmd = (device_missing_delay > 0x7F0) ? 0x7F0 : 2235 device_missing_delay; 2236 dmd = dmd / 16; 2237 dmd |= MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16; 2238 } else 2239 dmd = device_missing_delay; 2240 sas_iounit_pg1->ReportDeviceMissingDelay = dmd; 2241 2242 /* io missing delay */ 2243 io_missing_delay_original = sas_iounit_pg1->IODeviceMissingDelay; 2244 sas_iounit_pg1->IODeviceMissingDelay = io_missing_delay; 2245 2246 if (!mpt2sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1, 2247 sz)) { 2248 if (dmd & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16) 2249 dmd_new = (dmd & 2250 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16; 2251 else 2252 dmd_new = 2253 dmd & MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK; 2254 printk(MPT2SAS_INFO_FMT "device_missing_delay: old(%d), " 2255 "new(%d)\n", ioc->name, dmd_orignal, dmd_new); 2256 printk(MPT2SAS_INFO_FMT "ioc_missing_delay: old(%d), " 2257 "new(%d)\n", ioc->name, io_missing_delay_original, 2258 io_missing_delay); 2259 ioc->device_missing_delay = dmd_new; 2260 ioc->io_missing_delay = io_missing_delay; 2261 } 2262 2263out: 2264 kfree(sas_iounit_pg1); 2265} 2266 2267/** 2268 * _base_static_config_pages - static start of day config pages 2269 * @ioc: per adapter object 2270 * 2271 * Return nothing. 2272 */ 2273static void 2274_base_static_config_pages(struct MPT2SAS_ADAPTER *ioc) 2275{ 2276 Mpi2ConfigReply_t mpi_reply; 2277 u32 iounit_pg1_flags; 2278 2279 mpt2sas_config_get_manufacturing_pg0(ioc, &mpi_reply, &ioc->manu_pg0); 2280 if (ioc->ir_firmware) 2281 mpt2sas_config_get_manufacturing_pg10(ioc, &mpi_reply, 2282 &ioc->manu_pg10); 2283 mpt2sas_config_get_bios_pg2(ioc, &mpi_reply, &ioc->bios_pg2); 2284 mpt2sas_config_get_bios_pg3(ioc, &mpi_reply, &ioc->bios_pg3); 2285 mpt2sas_config_get_ioc_pg8(ioc, &mpi_reply, &ioc->ioc_pg8); 2286 mpt2sas_config_get_iounit_pg0(ioc, &mpi_reply, &ioc->iounit_pg0); 2287 mpt2sas_config_get_iounit_pg1(ioc, &mpi_reply, &ioc->iounit_pg1); 2288 _base_display_ioc_capabilities(ioc); 2289 2290 /* 2291 * Enable task_set_full handling in iounit_pg1 when the 2292 * facts capabilities indicate that its supported. 2293 */ 2294 iounit_pg1_flags = le32_to_cpu(ioc->iounit_pg1.Flags); 2295 if ((ioc->facts.IOCCapabilities & 2296 MPI2_IOCFACTS_CAPABILITY_TASK_SET_FULL_HANDLING)) 2297 iounit_pg1_flags &= 2298 ~MPI2_IOUNITPAGE1_DISABLE_TASK_SET_FULL_HANDLING; 2299 else 2300 iounit_pg1_flags |= 2301 MPI2_IOUNITPAGE1_DISABLE_TASK_SET_FULL_HANDLING; 2302 ioc->iounit_pg1.Flags = cpu_to_le32(iounit_pg1_flags); 2303 mpt2sas_config_set_iounit_pg1(ioc, &mpi_reply, &ioc->iounit_pg1); 2304 2305} 2306 2307/** 2308 * _base_release_memory_pools - release memory 2309 * @ioc: per adapter object 2310 * 2311 * Free memory allocated from _base_allocate_memory_pools. 2312 * 2313 * Return nothing. 2314 */ 2315static void 2316_base_release_memory_pools(struct MPT2SAS_ADAPTER *ioc) 2317{ 2318 int i; 2319 2320 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2321 __func__)); 2322 2323 if (ioc->request) { 2324 pci_free_consistent(ioc->pdev, ioc->request_dma_sz, 2325 ioc->request, ioc->request_dma); 2326 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "request_pool(0x%p)" 2327 ": free\n", ioc->name, ioc->request)); 2328 ioc->request = NULL; 2329 } 2330 2331 if (ioc->sense) { 2332 pci_pool_free(ioc->sense_dma_pool, ioc->sense, ioc->sense_dma); 2333 if (ioc->sense_dma_pool) 2334 pci_pool_destroy(ioc->sense_dma_pool); 2335 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "sense_pool(0x%p)" 2336 ": free\n", ioc->name, ioc->sense)); 2337 ioc->sense = NULL; 2338 } 2339 2340 if (ioc->reply) { 2341 pci_pool_free(ioc->reply_dma_pool, ioc->reply, ioc->reply_dma); 2342 if (ioc->reply_dma_pool) 2343 pci_pool_destroy(ioc->reply_dma_pool); 2344 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_pool(0x%p)" 2345 ": free\n", ioc->name, ioc->reply)); 2346 ioc->reply = NULL; 2347 } 2348 2349 if (ioc->reply_free) { 2350 pci_pool_free(ioc->reply_free_dma_pool, ioc->reply_free, 2351 ioc->reply_free_dma); 2352 if (ioc->reply_free_dma_pool) 2353 pci_pool_destroy(ioc->reply_free_dma_pool); 2354 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_free_pool" 2355 "(0x%p): free\n", ioc->name, ioc->reply_free)); 2356 ioc->reply_free = NULL; 2357 } 2358 2359 if (ioc->reply_post_free) { 2360 pci_pool_free(ioc->reply_post_free_dma_pool, 2361 ioc->reply_post_free, ioc->reply_post_free_dma); 2362 if (ioc->reply_post_free_dma_pool) 2363 pci_pool_destroy(ioc->reply_post_free_dma_pool); 2364 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT 2365 "reply_post_free_pool(0x%p): free\n", ioc->name, 2366 ioc->reply_post_free)); 2367 ioc->reply_post_free = NULL; 2368 } 2369 2370 if (ioc->config_page) { 2371 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT 2372 "config_page(0x%p): free\n", ioc->name, 2373 ioc->config_page)); 2374 pci_free_consistent(ioc->pdev, ioc->config_page_sz, 2375 ioc->config_page, ioc->config_page_dma); 2376 } 2377 2378 if (ioc->scsi_lookup) { 2379 free_pages((ulong)ioc->scsi_lookup, ioc->scsi_lookup_pages); 2380 ioc->scsi_lookup = NULL; 2381 } 2382 kfree(ioc->hpr_lookup); 2383 kfree(ioc->internal_lookup); 2384 if (ioc->chain_lookup) { 2385 for (i = 0; i < ioc->chain_depth; i++) { 2386 if (ioc->chain_lookup[i].chain_buffer) 2387 pci_pool_free(ioc->chain_dma_pool, 2388 ioc->chain_lookup[i].chain_buffer, 2389 ioc->chain_lookup[i].chain_buffer_dma); 2390 } 2391 if (ioc->chain_dma_pool) 2392 pci_pool_destroy(ioc->chain_dma_pool); 2393 } 2394 if (ioc->chain_lookup) { 2395 free_pages((ulong)ioc->chain_lookup, ioc->chain_pages); 2396 ioc->chain_lookup = NULL; 2397 } 2398} 2399 2400 2401/** 2402 * _base_allocate_memory_pools - allocate start of day memory pools 2403 * @ioc: per adapter object 2404 * @sleep_flag: CAN_SLEEP or NO_SLEEP 2405 * 2406 * Returns 0 success, anything else error 2407 */ 2408static int 2409_base_allocate_memory_pools(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) 2410{ 2411 struct mpt2sas_facts *facts; 2412 u32 queue_size, queue_diff; 2413 u16 max_sge_elements; 2414 u16 num_of_reply_frames; 2415 u16 chains_needed_per_io; 2416 u32 sz, total_sz, reply_post_free_sz; 2417 u32 retry_sz; 2418 u16 max_request_credit; 2419 int i; 2420 2421 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2422 __func__)); 2423 2424 retry_sz = 0; 2425 facts = &ioc->facts; 2426 2427 /* command line tunables for max sgl entries */ 2428 if (max_sgl_entries != -1) { 2429 ioc->shost->sg_tablesize = (max_sgl_entries < 2430 MPT2SAS_SG_DEPTH) ? max_sgl_entries : 2431 MPT2SAS_SG_DEPTH; 2432 } else { 2433 ioc->shost->sg_tablesize = MPT2SAS_SG_DEPTH; 2434 } 2435 2436 /* command line tunables for max controller queue depth */ 2437 if (max_queue_depth != -1) 2438 max_request_credit = (max_queue_depth < facts->RequestCredit) 2439 ? max_queue_depth : facts->RequestCredit; 2440 else 2441 max_request_credit = facts->RequestCredit; 2442 2443 ioc->hba_queue_depth = max_request_credit; 2444 ioc->hi_priority_depth = facts->HighPriorityCredit; 2445 ioc->internal_depth = ioc->hi_priority_depth + 5; 2446 2447 /* request frame size */ 2448 ioc->request_sz = facts->IOCRequestFrameSize * 4; 2449 2450 /* reply frame size */ 2451 ioc->reply_sz = facts->ReplyFrameSize * 4; 2452 2453 retry_allocation: 2454 total_sz = 0; 2455 /* calculate number of sg elements left over in the 1st frame */ 2456 max_sge_elements = ioc->request_sz - ((sizeof(Mpi2SCSIIORequest_t) - 2457 sizeof(Mpi2SGEIOUnion_t)) + ioc->sge_size); 2458 ioc->max_sges_in_main_message = max_sge_elements/ioc->sge_size; 2459 2460 /* now do the same for a chain buffer */ 2461 max_sge_elements = ioc->request_sz - ioc->sge_size; 2462 ioc->max_sges_in_chain_message = max_sge_elements/ioc->sge_size; 2463 2464 ioc->chain_offset_value_for_main_message = 2465 ((sizeof(Mpi2SCSIIORequest_t) - sizeof(Mpi2SGEIOUnion_t)) + 2466 (ioc->max_sges_in_chain_message * ioc->sge_size)) / 4; 2467 2468 /* 2469 * MPT2SAS_SG_DEPTH = CONFIG_FUSION_MAX_SGE 2470 */ 2471 chains_needed_per_io = ((ioc->shost->sg_tablesize - 2472 ioc->max_sges_in_main_message)/ioc->max_sges_in_chain_message) 2473 + 1; 2474 if (chains_needed_per_io > facts->MaxChainDepth) { 2475 chains_needed_per_io = facts->MaxChainDepth; 2476 ioc->shost->sg_tablesize = min_t(u16, 2477 ioc->max_sges_in_main_message + (ioc->max_sges_in_chain_message 2478 * chains_needed_per_io), ioc->shost->sg_tablesize); 2479 } 2480 ioc->chains_needed_per_io = chains_needed_per_io; 2481 2482 /* reply free queue sizing - taking into account for events */ 2483 num_of_reply_frames = ioc->hba_queue_depth + 32; 2484 2485 /* number of replies frames can't be a multiple of 16 */ 2486 /* decrease number of reply frames by 1 */ 2487 if (!(num_of_reply_frames % 16)) 2488 num_of_reply_frames--; 2489 2490 /* calculate number of reply free queue entries 2491 * (must be multiple of 16) 2492 */ 2493 2494 /* (we know reply_free_queue_depth is not a multiple of 16) */ 2495 queue_size = num_of_reply_frames; 2496 queue_size += 16 - (queue_size % 16); 2497 ioc->reply_free_queue_depth = queue_size; 2498 2499 /* reply descriptor post queue sizing */ 2500 /* this size should be the number of request frames + number of reply 2501 * frames 2502 */ 2503 2504 queue_size = ioc->hba_queue_depth + num_of_reply_frames + 1; 2505 /* round up to 16 byte boundary */ 2506 if (queue_size % 16) 2507 queue_size += 16 - (queue_size % 16); 2508 2509 /* check against IOC maximum reply post queue depth */ 2510 if (queue_size > facts->MaxReplyDescriptorPostQueueDepth) { 2511 queue_diff = queue_size - 2512 facts->MaxReplyDescriptorPostQueueDepth; 2513 2514 /* round queue_diff up to multiple of 16 */ 2515 if (queue_diff % 16) 2516 queue_diff += 16 - (queue_diff % 16); 2517 2518 /* adjust hba_queue_depth, reply_free_queue_depth, 2519 * and queue_size 2520 */ 2521 ioc->hba_queue_depth -= (queue_diff / 2); 2522 ioc->reply_free_queue_depth -= (queue_diff / 2); 2523 queue_size = facts->MaxReplyDescriptorPostQueueDepth; 2524 } 2525 ioc->reply_post_queue_depth = queue_size; 2526 2527 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scatter gather: " 2528 "sge_in_main_msg(%d), sge_per_chain(%d), sge_per_io(%d), " 2529 "chains_per_io(%d)\n", ioc->name, ioc->max_sges_in_main_message, 2530 ioc->max_sges_in_chain_message, ioc->shost->sg_tablesize, 2531 ioc->chains_needed_per_io)); 2532 2533 ioc->scsiio_depth = ioc->hba_queue_depth - 2534 ioc->hi_priority_depth - ioc->internal_depth; 2535 2536 /* set the scsi host can_queue depth 2537 * with some internal commands that could be outstanding 2538 */ 2539 ioc->shost->can_queue = ioc->scsiio_depth - (2); 2540 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scsi host: " 2541 "can_queue depth (%d)\n", ioc->name, ioc->shost->can_queue)); 2542 2543 /* contiguous pool for request and chains, 16 byte align, one extra " 2544 * "frame for smid=0 2545 */ 2546 ioc->chain_depth = ioc->chains_needed_per_io * ioc->scsiio_depth; 2547 sz = ((ioc->scsiio_depth + 1) * ioc->request_sz); 2548 2549 /* hi-priority queue */ 2550 sz += (ioc->hi_priority_depth * ioc->request_sz); 2551 2552 /* internal queue */ 2553 sz += (ioc->internal_depth * ioc->request_sz); 2554 2555 ioc->request_dma_sz = sz; 2556 ioc->request = pci_alloc_consistent(ioc->pdev, sz, &ioc->request_dma); 2557 if (!ioc->request) { 2558 printk(MPT2SAS_ERR_FMT "request pool: pci_alloc_consistent " 2559 "failed: hba_depth(%d), chains_per_io(%d), frame_sz(%d), " 2560 "total(%d kB)\n", ioc->name, ioc->hba_queue_depth, 2561 ioc->chains_needed_per_io, ioc->request_sz, sz/1024); 2562 if (ioc->scsiio_depth < MPT2SAS_SAS_QUEUE_DEPTH) 2563 goto out; 2564 retry_sz += 64; 2565 ioc->hba_queue_depth = max_request_credit - retry_sz; 2566 goto retry_allocation; 2567 } 2568 2569 if (retry_sz) 2570 printk(MPT2SAS_ERR_FMT "request pool: pci_alloc_consistent " 2571 "succeed: hba_depth(%d), chains_per_io(%d), frame_sz(%d), " 2572 "total(%d kb)\n", ioc->name, ioc->hba_queue_depth, 2573 ioc->chains_needed_per_io, ioc->request_sz, sz/1024); 2574 2575 2576 /* hi-priority queue */ 2577 ioc->hi_priority = ioc->request + ((ioc->scsiio_depth + 1) * 2578 ioc->request_sz); 2579 ioc->hi_priority_dma = ioc->request_dma + ((ioc->scsiio_depth + 1) * 2580 ioc->request_sz); 2581 2582 /* internal queue */ 2583 ioc->internal = ioc->hi_priority + (ioc->hi_priority_depth * 2584 ioc->request_sz); 2585 ioc->internal_dma = ioc->hi_priority_dma + (ioc->hi_priority_depth * 2586 ioc->request_sz); 2587 2588 2589 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "request pool(0x%p): " 2590 "depth(%d), frame_size(%d), pool_size(%d kB)\n", ioc->name, 2591 ioc->request, ioc->hba_queue_depth, ioc->request_sz, 2592 (ioc->hba_queue_depth * ioc->request_sz)/1024)); 2593 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "request pool: dma(0x%llx)\n", 2594 ioc->name, (unsigned long long) ioc->request_dma)); 2595 total_sz += sz; 2596 2597 sz = ioc->scsiio_depth * sizeof(struct scsiio_tracker); 2598 ioc->scsi_lookup_pages = get_order(sz); 2599 ioc->scsi_lookup = (struct scsiio_tracker *)__get_free_pages( 2600 GFP_KERNEL, ioc->scsi_lookup_pages); 2601 if (!ioc->scsi_lookup) { 2602 printk(MPT2SAS_ERR_FMT "scsi_lookup: get_free_pages failed, " 2603 "sz(%d)\n", ioc->name, (int)sz); 2604 goto out; 2605 } 2606 2607 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scsiio(0x%p): " 2608 "depth(%d)\n", ioc->name, ioc->request, 2609 ioc->scsiio_depth)); 2610 2611 /* loop till the allocation succeeds */ 2612 do { 2613 sz = ioc->chain_depth * sizeof(struct chain_tracker); 2614 ioc->chain_pages = get_order(sz); 2615 ioc->chain_lookup = (struct chain_tracker *)__get_free_pages( 2616 GFP_KERNEL, ioc->chain_pages); 2617 if (ioc->chain_lookup == NULL) 2618 ioc->chain_depth -= 100; 2619 } while (ioc->chain_lookup == NULL); 2620 ioc->chain_dma_pool = pci_pool_create("chain pool", ioc->pdev, 2621 ioc->request_sz, 16, 0); 2622 if (!ioc->chain_dma_pool) { 2623 printk(MPT2SAS_ERR_FMT "chain_dma_pool: pci_pool_create " 2624 "failed\n", ioc->name); 2625 goto out; 2626 } 2627 for (i = 0; i < ioc->chain_depth; i++) { 2628 ioc->chain_lookup[i].chain_buffer = pci_pool_alloc( 2629 ioc->chain_dma_pool , GFP_KERNEL, 2630 &ioc->chain_lookup[i].chain_buffer_dma); 2631 if (!ioc->chain_lookup[i].chain_buffer) { 2632 ioc->chain_depth = i; 2633 goto chain_done; 2634 } 2635 total_sz += ioc->request_sz; 2636 } 2637chain_done: 2638 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "chain pool depth" 2639 "(%d), frame_size(%d), pool_size(%d kB)\n", ioc->name, 2640 ioc->chain_depth, ioc->request_sz, ((ioc->chain_depth * 2641 ioc->request_sz))/1024)); 2642 2643 /* initialize hi-priority queue smid's */ 2644 ioc->hpr_lookup = kcalloc(ioc->hi_priority_depth, 2645 sizeof(struct request_tracker), GFP_KERNEL); 2646 if (!ioc->hpr_lookup) { 2647 printk(MPT2SAS_ERR_FMT "hpr_lookup: kcalloc failed\n", 2648 ioc->name); 2649 goto out; 2650 } 2651 ioc->hi_priority_smid = ioc->scsiio_depth + 1; 2652 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "hi_priority(0x%p): " 2653 "depth(%d), start smid(%d)\n", ioc->name, ioc->hi_priority, 2654 ioc->hi_priority_depth, ioc->hi_priority_smid)); 2655 2656 /* initialize internal queue smid's */ 2657 ioc->internal_lookup = kcalloc(ioc->internal_depth, 2658 sizeof(struct request_tracker), GFP_KERNEL); 2659 if (!ioc->internal_lookup) { 2660 printk(MPT2SAS_ERR_FMT "internal_lookup: kcalloc failed\n", 2661 ioc->name); 2662 goto out; 2663 } 2664 ioc->internal_smid = ioc->hi_priority_smid + ioc->hi_priority_depth; 2665 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "internal(0x%p): " 2666 "depth(%d), start smid(%d)\n", ioc->name, ioc->internal, 2667 ioc->internal_depth, ioc->internal_smid)); 2668 2669 /* sense buffers, 4 byte align */ 2670 sz = ioc->scsiio_depth * SCSI_SENSE_BUFFERSIZE; 2671 ioc->sense_dma_pool = pci_pool_create("sense pool", ioc->pdev, sz, 4, 2672 0); 2673 if (!ioc->sense_dma_pool) { 2674 printk(MPT2SAS_ERR_FMT "sense pool: pci_pool_create failed\n", 2675 ioc->name); 2676 goto out; 2677 } 2678 ioc->sense = pci_pool_alloc(ioc->sense_dma_pool , GFP_KERNEL, 2679 &ioc->sense_dma); 2680 if (!ioc->sense) { 2681 printk(MPT2SAS_ERR_FMT "sense pool: pci_pool_alloc failed\n", 2682 ioc->name); 2683 goto out; 2684 } 2685 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT 2686 "sense pool(0x%p): depth(%d), element_size(%d), pool_size" 2687 "(%d kB)\n", ioc->name, ioc->sense, ioc->scsiio_depth, 2688 SCSI_SENSE_BUFFERSIZE, sz/1024)); 2689 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "sense_dma(0x%llx)\n", 2690 ioc->name, (unsigned long long)ioc->sense_dma)); 2691 total_sz += sz; 2692 2693 /* reply pool, 4 byte align */ 2694 sz = ioc->reply_free_queue_depth * ioc->reply_sz; 2695 ioc->reply_dma_pool = pci_pool_create("reply pool", ioc->pdev, sz, 4, 2696 0); 2697 if (!ioc->reply_dma_pool) { 2698 printk(MPT2SAS_ERR_FMT "reply pool: pci_pool_create failed\n", 2699 ioc->name); 2700 goto out; 2701 } 2702 ioc->reply = pci_pool_alloc(ioc->reply_dma_pool , GFP_KERNEL, 2703 &ioc->reply_dma); 2704 if (!ioc->reply) { 2705 printk(MPT2SAS_ERR_FMT "reply pool: pci_pool_alloc failed\n", 2706 ioc->name); 2707 goto out; 2708 } 2709 ioc->reply_dma_min_address = (u32)(ioc->reply_dma); 2710 ioc->reply_dma_max_address = (u32)(ioc->reply_dma) + sz; 2711 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply pool(0x%p): depth" 2712 "(%d), frame_size(%d), pool_size(%d kB)\n", ioc->name, ioc->reply, 2713 ioc->reply_free_queue_depth, ioc->reply_sz, sz/1024)); 2714 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_dma(0x%llx)\n", 2715 ioc->name, (unsigned long long)ioc->reply_dma)); 2716 total_sz += sz; 2717 2718 /* reply free queue, 16 byte align */ 2719 sz = ioc->reply_free_queue_depth * 4; 2720 ioc->reply_free_dma_pool = pci_pool_create("reply_free pool", 2721 ioc->pdev, sz, 16, 0); 2722 if (!ioc->reply_free_dma_pool) { 2723 printk(MPT2SAS_ERR_FMT "reply_free pool: pci_pool_create " 2724 "failed\n", ioc->name); 2725 goto out; 2726 } 2727 ioc->reply_free = pci_pool_alloc(ioc->reply_free_dma_pool , GFP_KERNEL, 2728 &ioc->reply_free_dma); 2729 if (!ioc->reply_free) { 2730 printk(MPT2SAS_ERR_FMT "reply_free pool: pci_pool_alloc " 2731 "failed\n", ioc->name); 2732 goto out; 2733 } 2734 memset(ioc->reply_free, 0, sz); 2735 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_free pool(0x%p): " 2736 "depth(%d), element_size(%d), pool_size(%d kB)\n", ioc->name, 2737 ioc->reply_free, ioc->reply_free_queue_depth, 4, sz/1024)); 2738 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_free_dma" 2739 "(0x%llx)\n", ioc->name, (unsigned long long)ioc->reply_free_dma)); 2740 total_sz += sz; 2741 2742 /* reply post queue, 16 byte align */ 2743 reply_post_free_sz = ioc->reply_post_queue_depth * 2744 sizeof(Mpi2DefaultReplyDescriptor_t); 2745 if (_base_is_controller_msix_enabled(ioc)) 2746 sz = reply_post_free_sz * ioc->reply_queue_count; 2747 else 2748 sz = reply_post_free_sz; 2749 ioc->reply_post_free_dma_pool = pci_pool_create("reply_post_free pool", 2750 ioc->pdev, sz, 16, 0); 2751 if (!ioc->reply_post_free_dma_pool) { 2752 printk(MPT2SAS_ERR_FMT "reply_post_free pool: pci_pool_create " 2753 "failed\n", ioc->name); 2754 goto out; 2755 } 2756 ioc->reply_post_free = pci_pool_alloc(ioc->reply_post_free_dma_pool , 2757 GFP_KERNEL, &ioc->reply_post_free_dma); 2758 if (!ioc->reply_post_free) { 2759 printk(MPT2SAS_ERR_FMT "reply_post_free pool: pci_pool_alloc " 2760 "failed\n", ioc->name); 2761 goto out; 2762 } 2763 memset(ioc->reply_post_free, 0, sz); 2764 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply post free pool" 2765 "(0x%p): depth(%d), element_size(%d), pool_size(%d kB)\n", 2766 ioc->name, ioc->reply_post_free, ioc->reply_post_queue_depth, 8, 2767 sz/1024)); 2768 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_post_free_dma = " 2769 "(0x%llx)\n", ioc->name, (unsigned long long) 2770 ioc->reply_post_free_dma)); 2771 total_sz += sz; 2772 2773 ioc->config_page_sz = 512; 2774 ioc->config_page = pci_alloc_consistent(ioc->pdev, 2775 ioc->config_page_sz, &ioc->config_page_dma); 2776 if (!ioc->config_page) { 2777 printk(MPT2SAS_ERR_FMT "config page: pci_pool_alloc " 2778 "failed\n", ioc->name); 2779 goto out; 2780 } 2781 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "config page(0x%p): size" 2782 "(%d)\n", ioc->name, ioc->config_page, ioc->config_page_sz)); 2783 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "config_page_dma" 2784 "(0x%llx)\n", ioc->name, (unsigned long long)ioc->config_page_dma)); 2785 total_sz += ioc->config_page_sz; 2786 2787 printk(MPT2SAS_INFO_FMT "Allocated physical memory: size(%d kB)\n", 2788 ioc->name, total_sz/1024); 2789 printk(MPT2SAS_INFO_FMT "Current Controller Queue Depth(%d), " 2790 "Max Controller Queue Depth(%d)\n", 2791 ioc->name, ioc->shost->can_queue, facts->RequestCredit); 2792 printk(MPT2SAS_INFO_FMT "Scatter Gather Elements per IO(%d)\n", 2793 ioc->name, ioc->shost->sg_tablesize); 2794 return 0; 2795 2796 out: 2797 return -ENOMEM; 2798} 2799 2800 2801/** 2802 * mpt2sas_base_get_iocstate - Get the current state of a MPT adapter. 2803 * @ioc: Pointer to MPT_ADAPTER structure 2804 * @cooked: Request raw or cooked IOC state 2805 * 2806 * Returns all IOC Doorbell register bits if cooked==0, else just the 2807 * Doorbell bits in MPI_IOC_STATE_MASK. 2808 */ 2809u32 2810mpt2sas_base_get_iocstate(struct MPT2SAS_ADAPTER *ioc, int cooked) 2811{ 2812 u32 s, sc; 2813 2814 s = readl(&ioc->chip->Doorbell); 2815 sc = s & MPI2_IOC_STATE_MASK; 2816 return cooked ? sc : s; 2817} 2818 2819/** 2820 * _base_wait_on_iocstate - waiting on a particular ioc state 2821 * @ioc_state: controller state { READY, OPERATIONAL, or RESET } 2822 * @timeout: timeout in second 2823 * @sleep_flag: CAN_SLEEP or NO_SLEEP 2824 * 2825 * Returns 0 for success, non-zero for failure. 2826 */ 2827static int 2828_base_wait_on_iocstate(struct MPT2SAS_ADAPTER *ioc, u32 ioc_state, int timeout, 2829 int sleep_flag) 2830{ 2831 u32 count, cntdn; 2832 u32 current_state; 2833 2834 count = 0; 2835 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout; 2836 do { 2837 current_state = mpt2sas_base_get_iocstate(ioc, 1); 2838 if (current_state == ioc_state) 2839 return 0; 2840 if (count && current_state == MPI2_IOC_STATE_FAULT) 2841 break; 2842 if (sleep_flag == CAN_SLEEP) 2843 msleep(1); 2844 else 2845 udelay(500); 2846 count++; 2847 } while (--cntdn); 2848 2849 return current_state; 2850} 2851 2852/** 2853 * _base_wait_for_doorbell_int - waiting for controller interrupt(generated by 2854 * a write to the doorbell) 2855 * @ioc: per adapter object 2856 * @timeout: timeout in second 2857 * @sleep_flag: CAN_SLEEP or NO_SLEEP 2858 * 2859 * Returns 0 for success, non-zero for failure. 2860 * 2861 * Notes: MPI2_HIS_IOC2SYS_DB_STATUS - set to one when IOC writes to doorbell. 2862 */ 2863static int 2864_base_wait_for_doorbell_int(struct MPT2SAS_ADAPTER *ioc, int timeout, 2865 int sleep_flag) 2866{ 2867 u32 cntdn, count; 2868 u32 int_status; 2869 2870 count = 0; 2871 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout; 2872 do { 2873 int_status = readl(&ioc->chip->HostInterruptStatus); 2874 if (int_status & MPI2_HIS_IOC2SYS_DB_STATUS) { 2875 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " 2876 "successful count(%d), timeout(%d)\n", ioc->name, 2877 __func__, count, timeout)); 2878 return 0; 2879 } 2880 if (sleep_flag == CAN_SLEEP) 2881 msleep(1); 2882 else 2883 udelay(500); 2884 count++; 2885 } while (--cntdn); 2886 2887 printk(MPT2SAS_ERR_FMT "%s: failed due to timeout count(%d), " 2888 "int_status(%x)!\n", ioc->name, __func__, count, int_status); 2889 return -EFAULT; 2890} 2891 2892/** 2893 * _base_wait_for_doorbell_ack - waiting for controller to read the doorbell. 2894 * @ioc: per adapter object 2895 * @timeout: timeout in second 2896 * @sleep_flag: CAN_SLEEP or NO_SLEEP 2897 * 2898 * Returns 0 for success, non-zero for failure. 2899 * 2900 * Notes: MPI2_HIS_SYS2IOC_DB_STATUS - set to one when host writes to 2901 * doorbell. 2902 */ 2903static int 2904_base_wait_for_doorbell_ack(struct MPT2SAS_ADAPTER *ioc, int timeout, 2905 int sleep_flag) 2906{ 2907 u32 cntdn, count; 2908 u32 int_status; 2909 u32 doorbell; 2910 2911 count = 0; 2912 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout; 2913 do { 2914 int_status = readl(&ioc->chip->HostInterruptStatus); 2915 if (!(int_status & MPI2_HIS_SYS2IOC_DB_STATUS)) { 2916 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " 2917 "successful count(%d), timeout(%d)\n", ioc->name, 2918 __func__, count, timeout)); 2919 return 0; 2920 } else if (int_status & MPI2_HIS_IOC2SYS_DB_STATUS) { 2921 doorbell = readl(&ioc->chip->Doorbell); 2922 if ((doorbell & MPI2_IOC_STATE_MASK) == 2923 MPI2_IOC_STATE_FAULT) { 2924 mpt2sas_base_fault_info(ioc , doorbell); 2925 return -EFAULT; 2926 } 2927 } else if (int_status == 0xFFFFFFFF) 2928 goto out; 2929 2930 if (sleep_flag == CAN_SLEEP) 2931 msleep(1); 2932 else 2933 udelay(500); 2934 count++; 2935 } while (--cntdn); 2936 2937 out: 2938 printk(MPT2SAS_ERR_FMT "%s: failed due to timeout count(%d), " 2939 "int_status(%x)!\n", ioc->name, __func__, count, int_status); 2940 return -EFAULT; 2941} 2942 2943/** 2944 * _base_wait_for_doorbell_not_used - waiting for doorbell to not be in use 2945 * @ioc: per adapter object 2946 * @timeout: timeout in second 2947 * @sleep_flag: CAN_SLEEP or NO_SLEEP 2948 * 2949 * Returns 0 for success, non-zero for failure. 2950 * 2951 */ 2952static int 2953_base_wait_for_doorbell_not_used(struct MPT2SAS_ADAPTER *ioc, int timeout, 2954 int sleep_flag) 2955{ 2956 u32 cntdn, count; 2957 u32 doorbell_reg; 2958 2959 count = 0; 2960 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout; 2961 do { 2962 doorbell_reg = readl(&ioc->chip->Doorbell); 2963 if (!(doorbell_reg & MPI2_DOORBELL_USED)) { 2964 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " 2965 "successful count(%d), timeout(%d)\n", ioc->name, 2966 __func__, count, timeout)); 2967 return 0; 2968 } 2969 if (sleep_flag == CAN_SLEEP) 2970 msleep(1); 2971 else 2972 udelay(500); 2973 count++; 2974 } while (--cntdn); 2975 2976 printk(MPT2SAS_ERR_FMT "%s: failed due to timeout count(%d), " 2977 "doorbell_reg(%x)!\n", ioc->name, __func__, count, doorbell_reg); 2978 return -EFAULT; 2979} 2980 2981/** 2982 * _base_send_ioc_reset - send doorbell reset 2983 * @ioc: per adapter object 2984 * @reset_type: currently only supports: MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET 2985 * @timeout: timeout in second 2986 * @sleep_flag: CAN_SLEEP or NO_SLEEP 2987 * 2988 * Returns 0 for success, non-zero for failure. 2989 */ 2990static int 2991_base_send_ioc_reset(struct MPT2SAS_ADAPTER *ioc, u8 reset_type, int timeout, 2992 int sleep_flag) 2993{ 2994 u32 ioc_state; 2995 int r = 0; 2996 2997 if (reset_type != MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET) { 2998 printk(MPT2SAS_ERR_FMT "%s: unknown reset_type\n", 2999 ioc->name, __func__); 3000 return -EFAULT; 3001 } 3002 3003 if (!(ioc->facts.IOCCapabilities & 3004 MPI2_IOCFACTS_CAPABILITY_EVENT_REPLAY)) 3005 return -EFAULT; 3006 3007 printk(MPT2SAS_INFO_FMT "sending message unit reset !!\n", ioc->name); 3008 3009 writel(reset_type << MPI2_DOORBELL_FUNCTION_SHIFT, 3010 &ioc->chip->Doorbell); 3011 if ((_base_wait_for_doorbell_ack(ioc, 15, sleep_flag))) { 3012 r = -EFAULT; 3013 goto out; 3014 } 3015 ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY, 3016 timeout, sleep_flag); 3017 if (ioc_state) { 3018 printk(MPT2SAS_ERR_FMT "%s: failed going to ready state " 3019 " (ioc_state=0x%x)\n", ioc->name, __func__, ioc_state); 3020 r = -EFAULT; 3021 goto out; 3022 } 3023 out: 3024 printk(MPT2SAS_INFO_FMT "message unit reset: %s\n", 3025 ioc->name, ((r == 0) ? "SUCCESS" : "FAILED")); 3026 return r; 3027} 3028 3029/** 3030 * _base_handshake_req_reply_wait - send request thru doorbell interface 3031 * @ioc: per adapter object 3032 * @request_bytes: request length 3033 * @request: pointer having request payload 3034 * @reply_bytes: reply length 3035 * @reply: pointer to reply payload 3036 * @timeout: timeout in second 3037 * @sleep_flag: CAN_SLEEP or NO_SLEEP 3038 * 3039 * Returns 0 for success, non-zero for failure. 3040 */ 3041static int 3042_base_handshake_req_reply_wait(struct MPT2SAS_ADAPTER *ioc, int request_bytes, 3043 u32 *request, int reply_bytes, u16 *reply, int timeout, int sleep_flag) 3044{ 3045 MPI2DefaultReply_t *default_reply = (MPI2DefaultReply_t *)reply; 3046 int i; 3047 u8 failed; 3048 u16 dummy; 3049 __le32 *mfp; 3050 3051 /* make sure doorbell is not in use */ 3052 if ((readl(&ioc->chip->Doorbell) & MPI2_DOORBELL_USED)) { 3053 printk(MPT2SAS_ERR_FMT "doorbell is in use " 3054 " (line=%d)\n", ioc->name, __LINE__); 3055 return -EFAULT; 3056 } 3057 3058 /* clear pending doorbell interrupts from previous state changes */ 3059 if (readl(&ioc->chip->HostInterruptStatus) & 3060 MPI2_HIS_IOC2SYS_DB_STATUS) 3061 writel(0, &ioc->chip->HostInterruptStatus); 3062 3063 /* send message to ioc */ 3064 writel(((MPI2_FUNCTION_HANDSHAKE<<MPI2_DOORBELL_FUNCTION_SHIFT) | 3065 ((request_bytes/4)<<MPI2_DOORBELL_ADD_DWORDS_SHIFT)), 3066 &ioc->chip->Doorbell); 3067 3068 if ((_base_wait_for_doorbell_int(ioc, 5, NO_SLEEP))) { 3069 printk(MPT2SAS_ERR_FMT "doorbell handshake " 3070 "int failed (line=%d)\n", ioc->name, __LINE__); 3071 return -EFAULT; 3072 } 3073 writel(0, &ioc->chip->HostInterruptStatus); 3074 3075 if ((_base_wait_for_doorbell_ack(ioc, 5, sleep_flag))) { 3076 printk(MPT2SAS_ERR_FMT "doorbell handshake " 3077 "ack failed (line=%d)\n", ioc->name, __LINE__); 3078 return -EFAULT; 3079 } 3080 3081 /* send message 32-bits at a time */ 3082 for (i = 0, failed = 0; i < request_bytes/4 && !failed; i++) { 3083 writel(cpu_to_le32(request[i]), &ioc->chip->Doorbell); 3084 if ((_base_wait_for_doorbell_ack(ioc, 5, sleep_flag))) 3085 failed = 1; 3086 } 3087 3088 if (failed) { 3089 printk(MPT2SAS_ERR_FMT "doorbell handshake " 3090 "sending request failed (line=%d)\n", ioc->name, __LINE__); 3091 return -EFAULT; 3092 } 3093 3094 /* now wait for the reply */ 3095 if ((_base_wait_for_doorbell_int(ioc, timeout, sleep_flag))) { 3096 printk(MPT2SAS_ERR_FMT "doorbell handshake " 3097 "int failed (line=%d)\n", ioc->name, __LINE__); 3098 return -EFAULT; 3099 } 3100 3101 /* read the first two 16-bits, it gives the total length of the reply */ 3102 reply[0] = le16_to_cpu(readl(&ioc->chip->Doorbell) 3103 & MPI2_DOORBELL_DATA_MASK); 3104 writel(0, &ioc->chip->HostInterruptStatus); 3105 if ((_base_wait_for_doorbell_int(ioc, 5, sleep_flag))) { 3106 printk(MPT2SAS_ERR_FMT "doorbell handshake " 3107 "int failed (line=%d)\n", ioc->name, __LINE__); 3108 return -EFAULT; 3109 } 3110 reply[1] = le16_to_cpu(readl(&ioc->chip->Doorbell) 3111 & MPI2_DOORBELL_DATA_MASK); 3112 writel(0, &ioc->chip->HostInterruptStatus); 3113 3114 for (i = 2; i < default_reply->MsgLength * 2; i++) { 3115 if ((_base_wait_for_doorbell_int(ioc, 5, sleep_flag))) { 3116 printk(MPT2SAS_ERR_FMT "doorbell " 3117 "handshake int failed (line=%d)\n", ioc->name, 3118 __LINE__); 3119 return -EFAULT; 3120 } 3121 if (i >= reply_bytes/2) /* overflow case */ 3122 dummy = readl(&ioc->chip->Doorbell); 3123 else 3124 reply[i] = le16_to_cpu(readl(&ioc->chip->Doorbell) 3125 & MPI2_DOORBELL_DATA_MASK); 3126 writel(0, &ioc->chip->HostInterruptStatus); 3127 } 3128 3129 _base_wait_for_doorbell_int(ioc, 5, sleep_flag); 3130 if (_base_wait_for_doorbell_not_used(ioc, 5, sleep_flag) != 0) { 3131 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "doorbell is in use " 3132 " (line=%d)\n", ioc->name, __LINE__)); 3133 } 3134 writel(0, &ioc->chip->HostInterruptStatus); 3135 3136 if (ioc->logging_level & MPT_DEBUG_INIT) { 3137 mfp = (__le32 *)reply; 3138 printk(KERN_INFO "\toffset:data\n"); 3139 for (i = 0; i < reply_bytes/4; i++) 3140 printk(KERN_INFO "\t[0x%02x]:%08x\n", i*4, 3141 le32_to_cpu(mfp[i])); 3142 } 3143 return 0; 3144} 3145 3146/** 3147 * mpt2sas_base_sas_iounit_control - send sas iounit control to FW 3148 * @ioc: per adapter object 3149 * @mpi_reply: the reply payload from FW 3150 * @mpi_request: the request payload sent to FW 3151 * 3152 * The SAS IO Unit Control Request message allows the host to perform low-level 3153 * operations, such as resets on the PHYs of the IO Unit, also allows the host 3154 * to obtain the IOC assigned device handles for a device if it has other 3155 * identifying information about the device, in addition allows the host to 3156 * remove IOC resources associated with the device. 3157 * 3158 * Returns 0 for success, non-zero for failure. 3159 */ 3160int 3161mpt2sas_base_sas_iounit_control(struct MPT2SAS_ADAPTER *ioc, 3162 Mpi2SasIoUnitControlReply_t *mpi_reply, 3163 Mpi2SasIoUnitControlRequest_t *mpi_request) 3164{ 3165 u16 smid; 3166 u32 ioc_state; 3167 unsigned long timeleft; 3168 u8 issue_reset; 3169 int rc; 3170 void *request; 3171 u16 wait_state_count; 3172 3173 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 3174 __func__)); 3175 3176 mutex_lock(&ioc->base_cmds.mutex); 3177 3178 if (ioc->base_cmds.status != MPT2_CMD_NOT_USED) { 3179 printk(MPT2SAS_ERR_FMT "%s: base_cmd in use\n", 3180 ioc->name, __func__); 3181 rc = -EAGAIN; 3182 goto out; 3183 } 3184 3185 wait_state_count = 0; 3186 ioc_state = mpt2sas_base_get_iocstate(ioc, 1); 3187 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { 3188 if (wait_state_count++ == 10) { 3189 printk(MPT2SAS_ERR_FMT 3190 "%s: failed due to ioc not operational\n", 3191 ioc->name, __func__); 3192 rc = -EFAULT; 3193 goto out; 3194 } 3195 ssleep(1); 3196 ioc_state = mpt2sas_base_get_iocstate(ioc, 1); 3197 printk(MPT2SAS_INFO_FMT "%s: waiting for " 3198 "operational state(count=%d)\n", ioc->name, 3199 __func__, wait_state_count); 3200 } 3201 3202 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx); 3203 if (!smid) { 3204 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", 3205 ioc->name, __func__); 3206 rc = -EAGAIN; 3207 goto out; 3208 } 3209 3210 rc = 0; 3211 ioc->base_cmds.status = MPT2_CMD_PENDING; 3212 request = mpt2sas_base_get_msg_frame(ioc, smid); 3213 ioc->base_cmds.smid = smid; 3214 memcpy(request, mpi_request, sizeof(Mpi2SasIoUnitControlRequest_t)); 3215 if (mpi_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET || 3216 mpi_request->Operation == MPI2_SAS_OP_PHY_LINK_RESET) 3217 ioc->ioc_link_reset_in_progress = 1; 3218 init_completion(&ioc->base_cmds.done); 3219 mpt2sas_base_put_smid_default(ioc, smid); 3220 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done, 3221 msecs_to_jiffies(10000)); 3222 if ((mpi_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET || 3223 mpi_request->Operation == MPI2_SAS_OP_PHY_LINK_RESET) && 3224 ioc->ioc_link_reset_in_progress) 3225 ioc->ioc_link_reset_in_progress = 0; 3226 if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) { 3227 printk(MPT2SAS_ERR_FMT "%s: timeout\n", 3228 ioc->name, __func__); 3229 _debug_dump_mf(mpi_request, 3230 sizeof(Mpi2SasIoUnitControlRequest_t)/4); 3231 if (!(ioc->base_cmds.status & MPT2_CMD_RESET)) 3232 issue_reset = 1; 3233 goto issue_host_reset; 3234 } 3235 if (ioc->base_cmds.status & MPT2_CMD_REPLY_VALID) 3236 memcpy(mpi_reply, ioc->base_cmds.reply, 3237 sizeof(Mpi2SasIoUnitControlReply_t)); 3238 else 3239 memset(mpi_reply, 0, sizeof(Mpi2SasIoUnitControlReply_t)); 3240 ioc->base_cmds.status = MPT2_CMD_NOT_USED; 3241 goto out; 3242 3243 issue_host_reset: 3244 if (issue_reset) 3245 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, 3246 FORCE_BIG_HAMMER); 3247 ioc->base_cmds.status = MPT2_CMD_NOT_USED; 3248 rc = -EFAULT; 3249 out: 3250 mutex_unlock(&ioc->base_cmds.mutex); 3251 return rc; 3252} 3253 3254 3255/** 3256 * mpt2sas_base_scsi_enclosure_processor - sending request to sep device 3257 * @ioc: per adapter object 3258 * @mpi_reply: the reply payload from FW 3259 * @mpi_request: the request payload sent to FW 3260 * 3261 * The SCSI Enclosure Processor request message causes the IOC to 3262 * communicate with SES devices to control LED status signals. 3263 * 3264 * Returns 0 for success, non-zero for failure. 3265 */ 3266int 3267mpt2sas_base_scsi_enclosure_processor(struct MPT2SAS_ADAPTER *ioc, 3268 Mpi2SepReply_t *mpi_reply, Mpi2SepRequest_t *mpi_request) 3269{ 3270 u16 smid; 3271 u32 ioc_state; 3272 unsigned long timeleft; 3273 u8 issue_reset; 3274 int rc; 3275 void *request; 3276 u16 wait_state_count; 3277 3278 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 3279 __func__)); 3280 3281 mutex_lock(&ioc->base_cmds.mutex); 3282 3283 if (ioc->base_cmds.status != MPT2_CMD_NOT_USED) { 3284 printk(MPT2SAS_ERR_FMT "%s: base_cmd in use\n", 3285 ioc->name, __func__); 3286 rc = -EAGAIN; 3287 goto out; 3288 } 3289 3290 wait_state_count = 0; 3291 ioc_state = mpt2sas_base_get_iocstate(ioc, 1); 3292 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { 3293 if (wait_state_count++ == 10) { 3294 printk(MPT2SAS_ERR_FMT 3295 "%s: failed due to ioc not operational\n", 3296 ioc->name, __func__); 3297 rc = -EFAULT; 3298 goto out; 3299 } 3300 ssleep(1); 3301 ioc_state = mpt2sas_base_get_iocstate(ioc, 1); 3302 printk(MPT2SAS_INFO_FMT "%s: waiting for " 3303 "operational state(count=%d)\n", ioc->name, 3304 __func__, wait_state_count); 3305 } 3306 3307 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx); 3308 if (!smid) { 3309 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", 3310 ioc->name, __func__); 3311 rc = -EAGAIN; 3312 goto out; 3313 } 3314 3315 rc = 0; 3316 ioc->base_cmds.status = MPT2_CMD_PENDING; 3317 request = mpt2sas_base_get_msg_frame(ioc, smid); 3318 ioc->base_cmds.smid = smid; 3319 memcpy(request, mpi_request, sizeof(Mpi2SepReply_t)); 3320 init_completion(&ioc->base_cmds.done); 3321 mpt2sas_base_put_smid_default(ioc, smid); 3322 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done, 3323 msecs_to_jiffies(10000)); 3324 if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) { 3325 printk(MPT2SAS_ERR_FMT "%s: timeout\n", 3326 ioc->name, __func__); 3327 _debug_dump_mf(mpi_request, 3328 sizeof(Mpi2SepRequest_t)/4); 3329 if (!(ioc->base_cmds.status & MPT2_CMD_RESET)) 3330 issue_reset = 1; 3331 goto issue_host_reset; 3332 } 3333 if (ioc->base_cmds.status & MPT2_CMD_REPLY_VALID) 3334 memcpy(mpi_reply, ioc->base_cmds.reply, 3335 sizeof(Mpi2SepReply_t)); 3336 else 3337 memset(mpi_reply, 0, sizeof(Mpi2SepReply_t)); 3338 ioc->base_cmds.status = MPT2_CMD_NOT_USED; 3339 goto out; 3340 3341 issue_host_reset: 3342 if (issue_reset) 3343 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, 3344 FORCE_BIG_HAMMER); 3345 ioc->base_cmds.status = MPT2_CMD_NOT_USED; 3346 rc = -EFAULT; 3347 out: 3348 mutex_unlock(&ioc->base_cmds.mutex); 3349 return rc; 3350} 3351 3352/** 3353 * _base_get_port_facts - obtain port facts reply and save in ioc 3354 * @ioc: per adapter object 3355 * @sleep_flag: CAN_SLEEP or NO_SLEEP 3356 * 3357 * Returns 0 for success, non-zero for failure. 3358 */ 3359static int 3360_base_get_port_facts(struct MPT2SAS_ADAPTER *ioc, int port, int sleep_flag) 3361{ 3362 Mpi2PortFactsRequest_t mpi_request; 3363 Mpi2PortFactsReply_t mpi_reply; 3364 struct mpt2sas_port_facts *pfacts; 3365 int mpi_reply_sz, mpi_request_sz, r; 3366 3367 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 3368 __func__)); 3369 3370 mpi_reply_sz = sizeof(Mpi2PortFactsReply_t); 3371 mpi_request_sz = sizeof(Mpi2PortFactsRequest_t); 3372 memset(&mpi_request, 0, mpi_request_sz); 3373 mpi_request.Function = MPI2_FUNCTION_PORT_FACTS; 3374 mpi_request.PortNumber = port; 3375 r = _base_handshake_req_reply_wait(ioc, mpi_request_sz, 3376 (u32 *)&mpi_request, mpi_reply_sz, (u16 *)&mpi_reply, 5, CAN_SLEEP); 3377 3378 if (r != 0) { 3379 printk(MPT2SAS_ERR_FMT "%s: handshake failed (r=%d)\n", 3380 ioc->name, __func__, r); 3381 return r; 3382 } 3383 3384 pfacts = &ioc->pfacts[port]; 3385 memset(pfacts, 0, sizeof(Mpi2PortFactsReply_t)); 3386 pfacts->PortNumber = mpi_reply.PortNumber; 3387 pfacts->VP_ID = mpi_reply.VP_ID; 3388 pfacts->VF_ID = mpi_reply.VF_ID; 3389 pfacts->MaxPostedCmdBuffers = 3390 le16_to_cpu(mpi_reply.MaxPostedCmdBuffers); 3391 3392 return 0; 3393} 3394 3395/** 3396 * _base_get_ioc_facts - obtain ioc facts reply and save in ioc 3397 * @ioc: per adapter object 3398 * @sleep_flag: CAN_SLEEP or NO_SLEEP 3399 * 3400 * Returns 0 for success, non-zero for failure. 3401 */ 3402static int 3403_base_get_ioc_facts(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) 3404{ 3405 Mpi2IOCFactsRequest_t mpi_request; 3406 Mpi2IOCFactsReply_t mpi_reply; 3407 struct mpt2sas_facts *facts; 3408 int mpi_reply_sz, mpi_request_sz, r; 3409 3410 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 3411 __func__)); 3412 3413 mpi_reply_sz = sizeof(Mpi2IOCFactsReply_t); 3414 mpi_request_sz = sizeof(Mpi2IOCFactsRequest_t); 3415 memset(&mpi_request, 0, mpi_request_sz); 3416 mpi_request.Function = MPI2_FUNCTION_IOC_FACTS; 3417 r = _base_handshake_req_reply_wait(ioc, mpi_request_sz, 3418 (u32 *)&mpi_request, mpi_reply_sz, (u16 *)&mpi_reply, 5, CAN_SLEEP); 3419 3420 if (r != 0) { 3421 printk(MPT2SAS_ERR_FMT "%s: handshake failed (r=%d)\n", 3422 ioc->name, __func__, r); 3423 return r; 3424 } 3425 3426 facts = &ioc->facts; 3427 memset(facts, 0, sizeof(Mpi2IOCFactsReply_t)); 3428 facts->MsgVersion = le16_to_cpu(mpi_reply.MsgVersion); 3429 facts->HeaderVersion = le16_to_cpu(mpi_reply.HeaderVersion); 3430 facts->VP_ID = mpi_reply.VP_ID; 3431 facts->VF_ID = mpi_reply.VF_ID; 3432 facts->IOCExceptions = le16_to_cpu(mpi_reply.IOCExceptions); 3433 facts->MaxChainDepth = mpi_reply.MaxChainDepth; 3434 facts->WhoInit = mpi_reply.WhoInit; 3435 facts->NumberOfPorts = mpi_reply.NumberOfPorts; 3436 facts->MaxMSIxVectors = mpi_reply.MaxMSIxVectors; 3437 facts->RequestCredit = le16_to_cpu(mpi_reply.RequestCredit); 3438 facts->MaxReplyDescriptorPostQueueDepth = 3439 le16_to_cpu(mpi_reply.MaxReplyDescriptorPostQueueDepth); 3440 facts->ProductID = le16_to_cpu(mpi_reply.ProductID); 3441 facts->IOCCapabilities = le32_to_cpu(mpi_reply.IOCCapabilities); 3442 if ((facts->IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID)) 3443 ioc->ir_firmware = 1; 3444 facts->FWVersion.Word = le32_to_cpu(mpi_reply.FWVersion.Word); 3445 facts->IOCRequestFrameSize = 3446 le16_to_cpu(mpi_reply.IOCRequestFrameSize); 3447 facts->MaxInitiators = le16_to_cpu(mpi_reply.MaxInitiators); 3448 facts->MaxTargets = le16_to_cpu(mpi_reply.MaxTargets); 3449 ioc->shost->max_id = -1; 3450 facts->MaxSasExpanders = le16_to_cpu(mpi_reply.MaxSasExpanders); 3451 facts->MaxEnclosures = le16_to_cpu(mpi_reply.MaxEnclosures); 3452 facts->ProtocolFlags = le16_to_cpu(mpi_reply.ProtocolFlags); 3453 facts->HighPriorityCredit = 3454 le16_to_cpu(mpi_reply.HighPriorityCredit); 3455 facts->ReplyFrameSize = mpi_reply.ReplyFrameSize; 3456 facts->MaxDevHandle = le16_to_cpu(mpi_reply.MaxDevHandle); 3457 3458 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "hba queue depth(%d), " 3459 "max chains per io(%d)\n", ioc->name, facts->RequestCredit, 3460 facts->MaxChainDepth)); 3461 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "request frame size(%d), " 3462 "reply frame size(%d)\n", ioc->name, 3463 facts->IOCRequestFrameSize * 4, facts->ReplyFrameSize * 4)); 3464 return 0; 3465} 3466 3467/** 3468 * _base_send_ioc_init - send ioc_init to firmware 3469 * @ioc: per adapter object 3470 * @sleep_flag: CAN_SLEEP or NO_SLEEP 3471 * 3472 * Returns 0 for success, non-zero for failure. 3473 */ 3474static int 3475_base_send_ioc_init(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) 3476{ 3477 Mpi2IOCInitRequest_t mpi_request; 3478 Mpi2IOCInitReply_t mpi_reply; 3479 int r; 3480 struct timeval current_time; 3481 u16 ioc_status; 3482 3483 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 3484 __func__)); 3485 3486 memset(&mpi_request, 0, sizeof(Mpi2IOCInitRequest_t)); 3487 mpi_request.Function = MPI2_FUNCTION_IOC_INIT; 3488 mpi_request.WhoInit = MPI2_WHOINIT_HOST_DRIVER; 3489 mpi_request.VF_ID = 0; /* TODO */ 3490 mpi_request.VP_ID = 0; 3491 mpi_request.MsgVersion = cpu_to_le16(MPI2_VERSION); 3492 mpi_request.HeaderVersion = cpu_to_le16(MPI2_HEADER_VERSION); 3493 3494 if (_base_is_controller_msix_enabled(ioc)) 3495 mpi_request.HostMSIxVectors = ioc->reply_queue_count; 3496 mpi_request.SystemRequestFrameSize = cpu_to_le16(ioc->request_sz/4); 3497 mpi_request.ReplyDescriptorPostQueueDepth = 3498 cpu_to_le16(ioc->reply_post_queue_depth); 3499 mpi_request.ReplyFreeQueueDepth = 3500 cpu_to_le16(ioc->reply_free_queue_depth); 3501 3502 mpi_request.SenseBufferAddressHigh = 3503 cpu_to_le32((u64)ioc->sense_dma >> 32); 3504 mpi_request.SystemReplyAddressHigh = 3505 cpu_to_le32((u64)ioc->reply_dma >> 32); 3506 mpi_request.SystemRequestFrameBaseAddress = 3507 cpu_to_le64((u64)ioc->request_dma); 3508 mpi_request.ReplyFreeQueueAddress = 3509 cpu_to_le64((u64)ioc->reply_free_dma); 3510 mpi_request.ReplyDescriptorPostQueueAddress = 3511 cpu_to_le64((u64)ioc->reply_post_free_dma); 3512 3513 3514 /* This time stamp specifies number of milliseconds 3515 * since epoch ~ midnight January 1, 1970. 3516 */ 3517 do_gettimeofday(¤t_time); 3518 mpi_request.TimeStamp = cpu_to_le64((u64)current_time.tv_sec * 1000 + 3519 (current_time.tv_usec / 1000)); 3520 3521 if (ioc->logging_level & MPT_DEBUG_INIT) { 3522 __le32 *mfp; 3523 int i; 3524 3525 mfp = (__le32 *)&mpi_request; 3526 printk(KERN_INFO "\toffset:data\n"); 3527 for (i = 0; i < sizeof(Mpi2IOCInitRequest_t)/4; i++) 3528 printk(KERN_INFO "\t[0x%02x]:%08x\n", i*4, 3529 le32_to_cpu(mfp[i])); 3530 } 3531 3532 r = _base_handshake_req_reply_wait(ioc, 3533 sizeof(Mpi2IOCInitRequest_t), (u32 *)&mpi_request, 3534 sizeof(Mpi2IOCInitReply_t), (u16 *)&mpi_reply, 10, 3535 sleep_flag); 3536 3537 if (r != 0) { 3538 printk(MPT2SAS_ERR_FMT "%s: handshake failed (r=%d)\n", 3539 ioc->name, __func__, r); 3540 return r; 3541 } 3542 3543 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK; 3544 if (ioc_status != MPI2_IOCSTATUS_SUCCESS || 3545 mpi_reply.IOCLogInfo) { 3546 printk(MPT2SAS_ERR_FMT "%s: failed\n", ioc->name, __func__); 3547 r = -EIO; 3548 } 3549 3550 return 0; 3551} 3552 3553/** 3554 * mpt2sas_port_enable_done - command completion routine for port enable 3555 * @ioc: per adapter object 3556 * @smid: system request message index 3557 * @msix_index: MSIX table index supplied by the OS 3558 * @reply: reply message frame(lower 32bit addr) 3559 * 3560 * Return 1 meaning mf should be freed from _base_interrupt 3561 * 0 means the mf is freed from this function. 3562 */ 3563u8 3564mpt2sas_port_enable_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, 3565 u32 reply) 3566{ 3567 MPI2DefaultReply_t *mpi_reply; 3568 u16 ioc_status; 3569 3570 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); 3571 if (mpi_reply && mpi_reply->Function == MPI2_FUNCTION_EVENT_ACK) 3572 return 1; 3573 3574 if (ioc->port_enable_cmds.status == MPT2_CMD_NOT_USED) 3575 return 1; 3576 3577 ioc->port_enable_cmds.status |= MPT2_CMD_COMPLETE; 3578 if (mpi_reply) { 3579 ioc->port_enable_cmds.status |= MPT2_CMD_REPLY_VALID; 3580 memcpy(ioc->port_enable_cmds.reply, mpi_reply, 3581 mpi_reply->MsgLength*4); 3582 } 3583 ioc->port_enable_cmds.status &= ~MPT2_CMD_PENDING; 3584 3585 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK; 3586 3587 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) 3588 ioc->port_enable_failed = 1; 3589 3590 if (ioc->is_driver_loading) { 3591 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) { 3592 mpt2sas_port_enable_complete(ioc); 3593 return 1; 3594 } else { 3595 ioc->start_scan_failed = ioc_status; 3596 ioc->start_scan = 0; 3597 return 1; 3598 } 3599 } 3600 complete(&ioc->port_enable_cmds.done); 3601 return 1; 3602} 3603 3604 3605/** 3606 * _base_send_port_enable - send port_enable(discovery stuff) to firmware 3607 * @ioc: per adapter object 3608 * @sleep_flag: CAN_SLEEP or NO_SLEEP 3609 * 3610 * Returns 0 for success, non-zero for failure. 3611 */ 3612static int 3613_base_send_port_enable(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) 3614{ 3615 Mpi2PortEnableRequest_t *mpi_request; 3616 Mpi2PortEnableReply_t *mpi_reply; 3617 unsigned long timeleft; 3618 int r = 0; 3619 u16 smid; 3620 u16 ioc_status; 3621 3622 printk(MPT2SAS_INFO_FMT "sending port enable !!\n", ioc->name); 3623 3624 if (ioc->port_enable_cmds.status & MPT2_CMD_PENDING) { 3625 printk(MPT2SAS_ERR_FMT "%s: internal command already in use\n", 3626 ioc->name, __func__); 3627 return -EAGAIN; 3628 } 3629 3630 smid = mpt2sas_base_get_smid(ioc, ioc->port_enable_cb_idx); 3631 if (!smid) { 3632 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", 3633 ioc->name, __func__); 3634 return -EAGAIN; 3635 } 3636 3637 ioc->port_enable_cmds.status = MPT2_CMD_PENDING; 3638 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); 3639 ioc->port_enable_cmds.smid = smid; 3640 memset(mpi_request, 0, sizeof(Mpi2PortEnableRequest_t)); 3641 mpi_request->Function = MPI2_FUNCTION_PORT_ENABLE; 3642 3643 init_completion(&ioc->port_enable_cmds.done); 3644 mpt2sas_base_put_smid_default(ioc, smid); 3645 timeleft = wait_for_completion_timeout(&ioc->port_enable_cmds.done, 3646 300*HZ); 3647 if (!(ioc->port_enable_cmds.status & MPT2_CMD_COMPLETE)) { 3648 printk(MPT2SAS_ERR_FMT "%s: timeout\n", 3649 ioc->name, __func__); 3650 _debug_dump_mf(mpi_request, 3651 sizeof(Mpi2PortEnableRequest_t)/4); 3652 if (ioc->port_enable_cmds.status & MPT2_CMD_RESET) 3653 r = -EFAULT; 3654 else 3655 r = -ETIME; 3656 goto out; 3657 } 3658 mpi_reply = ioc->port_enable_cmds.reply; 3659 3660 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK; 3661 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 3662 printk(MPT2SAS_ERR_FMT "%s: failed with (ioc_status=0x%08x)\n", 3663 ioc->name, __func__, ioc_status); 3664 r = -EFAULT; 3665 goto out; 3666 } 3667 out: 3668 ioc->port_enable_cmds.status = MPT2_CMD_NOT_USED; 3669 printk(MPT2SAS_INFO_FMT "port enable: %s\n", ioc->name, ((r == 0) ? 3670 "SUCCESS" : "FAILED")); 3671 return r; 3672} 3673 3674/** 3675 * mpt2sas_port_enable - initiate firmware discovery (don't wait for reply) 3676 * @ioc: per adapter object 3677 * 3678 * Returns 0 for success, non-zero for failure. 3679 */ 3680int 3681mpt2sas_port_enable(struct MPT2SAS_ADAPTER *ioc) 3682{ 3683 Mpi2PortEnableRequest_t *mpi_request; 3684 u16 smid; 3685 3686 printk(MPT2SAS_INFO_FMT "sending port enable !!\n", ioc->name); 3687 3688 if (ioc->port_enable_cmds.status & MPT2_CMD_PENDING) { 3689 printk(MPT2SAS_ERR_FMT "%s: internal command already in use\n", 3690 ioc->name, __func__); 3691 return -EAGAIN; 3692 } 3693 3694 smid = mpt2sas_base_get_smid(ioc, ioc->port_enable_cb_idx); 3695 if (!smid) { 3696 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", 3697 ioc->name, __func__); 3698 return -EAGAIN; 3699 } 3700 3701 ioc->port_enable_cmds.status = MPT2_CMD_PENDING; 3702 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); 3703 ioc->port_enable_cmds.smid = smid; 3704 memset(mpi_request, 0, sizeof(Mpi2PortEnableRequest_t)); 3705 mpi_request->Function = MPI2_FUNCTION_PORT_ENABLE; 3706 3707 mpt2sas_base_put_smid_default(ioc, smid); 3708 return 0; 3709} 3710 3711/** 3712 * _base_determine_wait_on_discovery - desposition 3713 * @ioc: per adapter object 3714 * 3715 * Decide whether to wait on discovery to complete. Used to either 3716 * locate boot device, or report volumes ahead of physical devices. 3717 * 3718 * Returns 1 for wait, 0 for don't wait 3719 */ 3720static int 3721_base_determine_wait_on_discovery(struct MPT2SAS_ADAPTER *ioc) 3722{ 3723 /* We wait for discovery to complete if IR firmware is loaded. 3724 * The sas topology events arrive before PD events, so we need time to 3725 * turn on the bit in ioc->pd_handles to indicate PD 3726 * Also, it maybe required to report Volumes ahead of physical 3727 * devices when MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING is set. 3728 */ 3729 if (ioc->ir_firmware) 3730 return 1; 3731 3732 /* if no Bios, then we don't need to wait */ 3733 if (!ioc->bios_pg3.BiosVersion) 3734 return 0; 3735 3736 /* Bios is present, then we drop down here. 3737 * 3738 * If there any entries in the Bios Page 2, then we wait 3739 * for discovery to complete. 3740 */ 3741 3742 /* Current Boot Device */ 3743 if ((ioc->bios_pg2.CurrentBootDeviceForm & 3744 MPI2_BIOSPAGE2_FORM_MASK) == 3745 MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED && 3746 /* Request Boot Device */ 3747 (ioc->bios_pg2.ReqBootDeviceForm & 3748 MPI2_BIOSPAGE2_FORM_MASK) == 3749 MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED && 3750 /* Alternate Request Boot Device */ 3751 (ioc->bios_pg2.ReqAltBootDeviceForm & 3752 MPI2_BIOSPAGE2_FORM_MASK) == 3753 MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED) 3754 return 0; 3755 3756 return 1; 3757} 3758 3759 3760/** 3761 * _base_unmask_events - turn on notification for this event 3762 * @ioc: per adapter object 3763 * @event: firmware event 3764 * 3765 * The mask is stored in ioc->event_masks. 3766 */ 3767static void 3768_base_unmask_events(struct MPT2SAS_ADAPTER *ioc, u16 event) 3769{ 3770 u32 desired_event; 3771 3772 if (event >= 128) 3773 return; 3774 3775 desired_event = (1 << (event % 32)); 3776 3777 if (event < 32) 3778 ioc->event_masks[0] &= ~desired_event; 3779 else if (event < 64) 3780 ioc->event_masks[1] &= ~desired_event; 3781 else if (event < 96) 3782 ioc->event_masks[2] &= ~desired_event; 3783 else if (event < 128) 3784 ioc->event_masks[3] &= ~desired_event; 3785} 3786 3787/** 3788 * _base_event_notification - send event notification 3789 * @ioc: per adapter object 3790 * @sleep_flag: CAN_SLEEP or NO_SLEEP 3791 * 3792 * Returns 0 for success, non-zero for failure. 3793 */ 3794static int 3795_base_event_notification(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) 3796{ 3797 Mpi2EventNotificationRequest_t *mpi_request; 3798 unsigned long timeleft; 3799 u16 smid; 3800 int r = 0; 3801 int i; 3802 3803 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 3804 __func__)); 3805 3806 if (ioc->base_cmds.status & MPT2_CMD_PENDING) { 3807 printk(MPT2SAS_ERR_FMT "%s: internal command already in use\n", 3808 ioc->name, __func__); 3809 return -EAGAIN; 3810 } 3811 3812 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx); 3813 if (!smid) { 3814 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", 3815 ioc->name, __func__); 3816 return -EAGAIN; 3817 } 3818 ioc->base_cmds.status = MPT2_CMD_PENDING; 3819 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); 3820 ioc->base_cmds.smid = smid; 3821 memset(mpi_request, 0, sizeof(Mpi2EventNotificationRequest_t)); 3822 mpi_request->Function = MPI2_FUNCTION_EVENT_NOTIFICATION; 3823 mpi_request->VF_ID = 0; /* TODO */ 3824 mpi_request->VP_ID = 0; 3825 for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++) 3826 mpi_request->EventMasks[i] = 3827 cpu_to_le32(ioc->event_masks[i]); 3828 init_completion(&ioc->base_cmds.done); 3829 mpt2sas_base_put_smid_default(ioc, smid); 3830 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done, 30*HZ); 3831 if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) { 3832 printk(MPT2SAS_ERR_FMT "%s: timeout\n", 3833 ioc->name, __func__); 3834 _debug_dump_mf(mpi_request, 3835 sizeof(Mpi2EventNotificationRequest_t)/4); 3836 if (ioc->base_cmds.status & MPT2_CMD_RESET) 3837 r = -EFAULT; 3838 else 3839 r = -ETIME; 3840 } else 3841 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: complete\n", 3842 ioc->name, __func__)); 3843 ioc->base_cmds.status = MPT2_CMD_NOT_USED; 3844 return r; 3845} 3846 3847/** 3848 * mpt2sas_base_validate_event_type - validating event types 3849 * @ioc: per adapter object 3850 * @event: firmware event 3851 * 3852 * This will turn on firmware event notification when application 3853 * ask for that event. We don't mask events that are already enabled. 3854 */ 3855void 3856mpt2sas_base_validate_event_type(struct MPT2SAS_ADAPTER *ioc, u32 *event_type) 3857{ 3858 int i, j; 3859 u32 event_mask, desired_event; 3860 u8 send_update_to_fw; 3861 3862 for (i = 0, send_update_to_fw = 0; i < 3863 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++) { 3864 event_mask = ~event_type[i]; 3865 desired_event = 1; 3866 for (j = 0; j < 32; j++) { 3867 if (!(event_mask & desired_event) && 3868 (ioc->event_masks[i] & desired_event)) { 3869 ioc->event_masks[i] &= ~desired_event; 3870 send_update_to_fw = 1; 3871 } 3872 desired_event = (desired_event << 1); 3873 } 3874 } 3875 3876 if (!send_update_to_fw) 3877 return; 3878 3879 mutex_lock(&ioc->base_cmds.mutex); 3880 _base_event_notification(ioc, CAN_SLEEP); 3881 mutex_unlock(&ioc->base_cmds.mutex); 3882} 3883 3884/** 3885 * _base_diag_reset - the "big hammer" start of day reset 3886 * @ioc: per adapter object 3887 * @sleep_flag: CAN_SLEEP or NO_SLEEP 3888 * 3889 * Returns 0 for success, non-zero for failure. 3890 */ 3891static int 3892_base_diag_reset(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) 3893{ 3894 u32 host_diagnostic; 3895 u32 ioc_state; 3896 u32 count; 3897 u32 hcb_size; 3898 3899 printk(MPT2SAS_INFO_FMT "sending diag reset !!\n", ioc->name); 3900 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "clear interrupts\n", 3901 ioc->name)); 3902 3903 count = 0; 3904 do { 3905 /* Write magic sequence to WriteSequence register 3906 * Loop until in diagnostic mode 3907 */ 3908 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "write magic " 3909 "sequence\n", ioc->name)); 3910 writel(MPI2_WRSEQ_FLUSH_KEY_VALUE, &ioc->chip->WriteSequence); 3911 writel(MPI2_WRSEQ_1ST_KEY_VALUE, &ioc->chip->WriteSequence); 3912 writel(MPI2_WRSEQ_2ND_KEY_VALUE, &ioc->chip->WriteSequence); 3913 writel(MPI2_WRSEQ_3RD_KEY_VALUE, &ioc->chip->WriteSequence); 3914 writel(MPI2_WRSEQ_4TH_KEY_VALUE, &ioc->chip->WriteSequence); 3915 writel(MPI2_WRSEQ_5TH_KEY_VALUE, &ioc->chip->WriteSequence); 3916 writel(MPI2_WRSEQ_6TH_KEY_VALUE, &ioc->chip->WriteSequence); 3917 3918 /* wait 100 msec */ 3919 if (sleep_flag == CAN_SLEEP) 3920 msleep(100); 3921 else 3922 mdelay(100); 3923 3924 if (count++ > 20) 3925 goto out; 3926 3927 host_diagnostic = readl(&ioc->chip->HostDiagnostic); 3928 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "wrote magic " 3929 "sequence: count(%d), host_diagnostic(0x%08x)\n", 3930 ioc->name, count, host_diagnostic)); 3931 3932 } while ((host_diagnostic & MPI2_DIAG_DIAG_WRITE_ENABLE) == 0); 3933 3934 hcb_size = readl(&ioc->chip->HCBSize); 3935 3936 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "diag reset: issued\n", 3937 ioc->name)); 3938 writel(host_diagnostic | MPI2_DIAG_RESET_ADAPTER, 3939 &ioc->chip->HostDiagnostic); 3940 3941 /* don't access any registers for 50 milliseconds */ 3942 msleep(50); 3943 3944 /* 300 second max wait */ 3945 for (count = 0; count < 3000000 ; count++) { 3946 3947 host_diagnostic = readl(&ioc->chip->HostDiagnostic); 3948 3949 if (host_diagnostic == 0xFFFFFFFF) 3950 goto out; 3951 if (!(host_diagnostic & MPI2_DIAG_RESET_ADAPTER)) 3952 break; 3953 3954 /* wait 100 msec */ 3955 if (sleep_flag == CAN_SLEEP) 3956 msleep(1); 3957 else 3958 mdelay(1); 3959 } 3960 3961 if (host_diagnostic & MPI2_DIAG_HCB_MODE) { 3962 3963 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "restart the adapter " 3964 "assuming the HCB Address points to good F/W\n", 3965 ioc->name)); 3966 host_diagnostic &= ~MPI2_DIAG_BOOT_DEVICE_SELECT_MASK; 3967 host_diagnostic |= MPI2_DIAG_BOOT_DEVICE_SELECT_HCDW; 3968 writel(host_diagnostic, &ioc->chip->HostDiagnostic); 3969 3970 drsprintk(ioc, printk(MPT2SAS_INFO_FMT 3971 "re-enable the HCDW\n", ioc->name)); 3972 writel(hcb_size | MPI2_HCB_SIZE_HCB_ENABLE, 3973 &ioc->chip->HCBSize); 3974 } 3975 3976 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "restart the adapter\n", 3977 ioc->name)); 3978 writel(host_diagnostic & ~MPI2_DIAG_HOLD_IOC_RESET, 3979 &ioc->chip->HostDiagnostic); 3980 3981 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "disable writes to the " 3982 "diagnostic register\n", ioc->name)); 3983 writel(MPI2_WRSEQ_FLUSH_KEY_VALUE, &ioc->chip->WriteSequence); 3984 3985 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "Wait for FW to go to the " 3986 "READY state\n", ioc->name)); 3987 ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY, 20, 3988 sleep_flag); 3989 if (ioc_state) { 3990 printk(MPT2SAS_ERR_FMT "%s: failed going to ready state " 3991 " (ioc_state=0x%x)\n", ioc->name, __func__, ioc_state); 3992 goto out; 3993 } 3994 3995 printk(MPT2SAS_INFO_FMT "diag reset: SUCCESS\n", ioc->name); 3996 return 0; 3997 3998 out: 3999 printk(MPT2SAS_ERR_FMT "diag reset: FAILED\n", ioc->name); 4000 return -EFAULT; 4001} 4002 4003/** 4004 * _base_make_ioc_ready - put controller in READY state 4005 * @ioc: per adapter object 4006 * @sleep_flag: CAN_SLEEP or NO_SLEEP 4007 * @type: FORCE_BIG_HAMMER or SOFT_RESET 4008 * 4009 * Returns 0 for success, non-zero for failure. 4010 */ 4011static int 4012_base_make_ioc_ready(struct MPT2SAS_ADAPTER *ioc, int sleep_flag, 4013 enum reset_type type) 4014{ 4015 u32 ioc_state; 4016 int rc; 4017 4018 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 4019 __func__)); 4020 4021 if (ioc->pci_error_recovery) 4022 return 0; 4023 4024 ioc_state = mpt2sas_base_get_iocstate(ioc, 0); 4025 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: ioc_state(0x%08x)\n", 4026 ioc->name, __func__, ioc_state)); 4027 4028 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_READY) 4029 return 0; 4030 4031 if (ioc_state & MPI2_DOORBELL_USED) { 4032 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "unexpected doorbell " 4033 "active!\n", ioc->name)); 4034 goto issue_diag_reset; 4035 } 4036 4037 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) { 4038 mpt2sas_base_fault_info(ioc, ioc_state & 4039 MPI2_DOORBELL_DATA_MASK); 4040 goto issue_diag_reset; 4041 } 4042 4043 if (type == FORCE_BIG_HAMMER) 4044 goto issue_diag_reset; 4045 4046 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_OPERATIONAL) 4047 if (!(_base_send_ioc_reset(ioc, 4048 MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET, 15, CAN_SLEEP))) { 4049 ioc->ioc_reset_count++; 4050 return 0; 4051 } 4052 4053 issue_diag_reset: 4054 rc = _base_diag_reset(ioc, CAN_SLEEP); 4055 ioc->ioc_reset_count++; 4056 return rc; 4057} 4058 4059/** 4060 * _base_make_ioc_operational - put controller in OPERATIONAL state 4061 * @ioc: per adapter object 4062 * @sleep_flag: CAN_SLEEP or NO_SLEEP 4063 * 4064 * Returns 0 for success, non-zero for failure. 4065 */ 4066static int 4067_base_make_ioc_operational(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) 4068{ 4069 int r, i; 4070 unsigned long flags; 4071 u32 reply_address; 4072 u16 smid; 4073 struct _tr_list *delayed_tr, *delayed_tr_next; 4074 u8 hide_flag; 4075 struct adapter_reply_queue *reply_q; 4076 long reply_post_free; 4077 u32 reply_post_free_sz; 4078 4079 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 4080 __func__)); 4081 4082 /* clean the delayed target reset list */ 4083 list_for_each_entry_safe(delayed_tr, delayed_tr_next, 4084 &ioc->delayed_tr_list, list) { 4085 list_del(&delayed_tr->list); 4086 kfree(delayed_tr); 4087 } 4088 4089 list_for_each_entry_safe(delayed_tr, delayed_tr_next, 4090 &ioc->delayed_tr_volume_list, list) { 4091 list_del(&delayed_tr->list); 4092 kfree(delayed_tr); 4093 } 4094 4095 /* initialize the scsi lookup free list */ 4096 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 4097 INIT_LIST_HEAD(&ioc->free_list); 4098 smid = 1; 4099 for (i = 0; i < ioc->scsiio_depth; i++, smid++) { 4100 INIT_LIST_HEAD(&ioc->scsi_lookup[i].chain_list); 4101 ioc->scsi_lookup[i].cb_idx = 0xFF; 4102 ioc->scsi_lookup[i].smid = smid; 4103 ioc->scsi_lookup[i].scmd = NULL; 4104 ioc->scsi_lookup[i].direct_io = 0; 4105 list_add_tail(&ioc->scsi_lookup[i].tracker_list, 4106 &ioc->free_list); 4107 } 4108 4109 /* hi-priority queue */ 4110 INIT_LIST_HEAD(&ioc->hpr_free_list); 4111 smid = ioc->hi_priority_smid; 4112 for (i = 0; i < ioc->hi_priority_depth; i++, smid++) { 4113 ioc->hpr_lookup[i].cb_idx = 0xFF; 4114 ioc->hpr_lookup[i].smid = smid; 4115 list_add_tail(&ioc->hpr_lookup[i].tracker_list, 4116 &ioc->hpr_free_list); 4117 } 4118 4119 /* internal queue */ 4120 INIT_LIST_HEAD(&ioc->internal_free_list); 4121 smid = ioc->internal_smid; 4122 for (i = 0; i < ioc->internal_depth; i++, smid++) { 4123 ioc->internal_lookup[i].cb_idx = 0xFF; 4124 ioc->internal_lookup[i].smid = smid; 4125 list_add_tail(&ioc->internal_lookup[i].tracker_list, 4126 &ioc->internal_free_list); 4127 } 4128 4129 /* chain pool */ 4130 INIT_LIST_HEAD(&ioc->free_chain_list); 4131 for (i = 0; i < ioc->chain_depth; i++) 4132 list_add_tail(&ioc->chain_lookup[i].tracker_list, 4133 &ioc->free_chain_list); 4134 4135 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 4136 4137 /* initialize Reply Free Queue */ 4138 for (i = 0, reply_address = (u32)ioc->reply_dma ; 4139 i < ioc->reply_free_queue_depth ; i++, reply_address += 4140 ioc->reply_sz) 4141 ioc->reply_free[i] = cpu_to_le32(reply_address); 4142 4143 /* initialize reply queues */ 4144 _base_assign_reply_queues(ioc); 4145 4146 /* initialize Reply Post Free Queue */ 4147 reply_post_free = (long)ioc->reply_post_free; 4148 reply_post_free_sz = ioc->reply_post_queue_depth * 4149 sizeof(Mpi2DefaultReplyDescriptor_t); 4150 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) { 4151 reply_q->reply_post_host_index = 0; 4152 reply_q->reply_post_free = (Mpi2ReplyDescriptorsUnion_t *) 4153 reply_post_free; 4154 for (i = 0; i < ioc->reply_post_queue_depth; i++) 4155 reply_q->reply_post_free[i].Words = 4156 cpu_to_le64(ULLONG_MAX); 4157 if (!_base_is_controller_msix_enabled(ioc)) 4158 goto skip_init_reply_post_free_queue; 4159 reply_post_free += reply_post_free_sz; 4160 } 4161 skip_init_reply_post_free_queue: 4162 4163 r = _base_send_ioc_init(ioc, sleep_flag); 4164 if (r) 4165 return r; 4166 4167 /* initialize reply free host index */ 4168 ioc->reply_free_host_index = ioc->reply_free_queue_depth - 1; 4169 writel(ioc->reply_free_host_index, &ioc->chip->ReplyFreeHostIndex); 4170 4171 /* initialize reply post host index */ 4172 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) { 4173 writel(reply_q->msix_index << MPI2_RPHI_MSIX_INDEX_SHIFT, 4174 &ioc->chip->ReplyPostHostIndex); 4175 if (!_base_is_controller_msix_enabled(ioc)) 4176 goto skip_init_reply_post_host_index; 4177 } 4178 4179 skip_init_reply_post_host_index: 4180 4181 _base_unmask_interrupts(ioc); 4182 4183 r = _base_event_notification(ioc, sleep_flag); 4184 if (r) 4185 return r; 4186 4187 if (sleep_flag == CAN_SLEEP) 4188 _base_static_config_pages(ioc); 4189 4190 4191 if (ioc->is_driver_loading) { 4192 4193 4194 4195 ioc->wait_for_discovery_to_complete = 4196 _base_determine_wait_on_discovery(ioc); 4197 return r; /* scan_start and scan_finished support */ 4198 } 4199 4200 4201 if (ioc->wait_for_discovery_to_complete && ioc->is_warpdrive) { 4202 if (ioc->manu_pg10.OEMIdentifier == 0x80) { 4203 hide_flag = (u8) (ioc->manu_pg10.OEMSpecificFlags0 & 4204 MFG_PAGE10_HIDE_SSDS_MASK); 4205 if (hide_flag != MFG_PAGE10_HIDE_SSDS_MASK) 4206 ioc->mfg_pg10_hide_flag = hide_flag; 4207 } 4208 } 4209 4210 r = _base_send_port_enable(ioc, sleep_flag); 4211 if (r) 4212 return r; 4213 4214 return r; 4215} 4216 4217/** 4218 * mpt2sas_base_free_resources - free resources controller resources (io/irq/memap) 4219 * @ioc: per adapter object 4220 * 4221 * Return nothing. 4222 */ 4223void 4224mpt2sas_base_free_resources(struct MPT2SAS_ADAPTER *ioc) 4225{ 4226 struct pci_dev *pdev = ioc->pdev; 4227 4228 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 4229 __func__)); 4230 4231 _base_mask_interrupts(ioc); 4232 ioc->shost_recovery = 1; 4233 _base_make_ioc_ready(ioc, CAN_SLEEP, SOFT_RESET); 4234 ioc->shost_recovery = 0; 4235 _base_free_irq(ioc); 4236 _base_disable_msix(ioc); 4237 if (ioc->chip_phys) 4238 iounmap(ioc->chip); 4239 ioc->chip_phys = 0; 4240 pci_release_selected_regions(ioc->pdev, ioc->bars); 4241 pci_disable_pcie_error_reporting(pdev); 4242 pci_disable_device(pdev); 4243 return; 4244} 4245 4246/** 4247 * mpt2sas_base_attach - attach controller instance 4248 * @ioc: per adapter object 4249 * 4250 * Returns 0 for success, non-zero for failure. 4251 */ 4252int 4253mpt2sas_base_attach(struct MPT2SAS_ADAPTER *ioc) 4254{ 4255 int r, i; 4256 int cpu_id, last_cpu_id = 0; 4257 4258 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 4259 __func__)); 4260 4261 /* setup cpu_msix_table */ 4262 ioc->cpu_count = num_online_cpus(); 4263 for_each_online_cpu(cpu_id) 4264 last_cpu_id = cpu_id; 4265 ioc->cpu_msix_table_sz = last_cpu_id + 1; 4266 ioc->cpu_msix_table = kzalloc(ioc->cpu_msix_table_sz, GFP_KERNEL); 4267 ioc->reply_queue_count = 1; 4268 if (!ioc->cpu_msix_table) { 4269 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "allocation for " 4270 "cpu_msix_table failed!!!\n", ioc->name)); 4271 r = -ENOMEM; 4272 goto out_free_resources; 4273 } 4274 4275 if (ioc->is_warpdrive) { 4276 ioc->reply_post_host_index = kcalloc(ioc->cpu_msix_table_sz, 4277 sizeof(resource_size_t *), GFP_KERNEL); 4278 if (!ioc->reply_post_host_index) { 4279 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "allocation " 4280 "for cpu_msix_table failed!!!\n", ioc->name)); 4281 r = -ENOMEM; 4282 goto out_free_resources; 4283 } 4284 } 4285 4286 r = mpt2sas_base_map_resources(ioc); 4287 if (r) 4288 return r; 4289 4290 if (ioc->is_warpdrive) { 4291 ioc->reply_post_host_index[0] = 4292 (resource_size_t *)&ioc->chip->ReplyPostHostIndex; 4293 4294 for (i = 1; i < ioc->cpu_msix_table_sz; i++) 4295 ioc->reply_post_host_index[i] = (resource_size_t *) 4296 ((u8 *)&ioc->chip->Doorbell + (0x4000 + ((i - 1) 4297 * 4))); 4298 } 4299 4300 pci_set_drvdata(ioc->pdev, ioc->shost); 4301 r = _base_get_ioc_facts(ioc, CAN_SLEEP); 4302 if (r) 4303 goto out_free_resources; 4304 4305 r = _base_make_ioc_ready(ioc, CAN_SLEEP, SOFT_RESET); 4306 if (r) 4307 goto out_free_resources; 4308 4309 ioc->pfacts = kcalloc(ioc->facts.NumberOfPorts, 4310 sizeof(Mpi2PortFactsReply_t), GFP_KERNEL); 4311 if (!ioc->pfacts) { 4312 r = -ENOMEM; 4313 goto out_free_resources; 4314 } 4315 4316 for (i = 0 ; i < ioc->facts.NumberOfPorts; i++) { 4317 r = _base_get_port_facts(ioc, i, CAN_SLEEP); 4318 if (r) 4319 goto out_free_resources; 4320 } 4321 4322 r = _base_allocate_memory_pools(ioc, CAN_SLEEP); 4323 if (r) 4324 goto out_free_resources; 4325 4326 init_waitqueue_head(&ioc->reset_wq); 4327 4328 /* allocate memory pd handle bitmask list */ 4329 ioc->pd_handles_sz = (ioc->facts.MaxDevHandle / 8); 4330 if (ioc->facts.MaxDevHandle % 8) 4331 ioc->pd_handles_sz++; 4332 ioc->pd_handles = kzalloc(ioc->pd_handles_sz, 4333 GFP_KERNEL); 4334 if (!ioc->pd_handles) { 4335 r = -ENOMEM; 4336 goto out_free_resources; 4337 } 4338 4339 ioc->fwfault_debug = mpt2sas_fwfault_debug; 4340 4341 /* base internal command bits */ 4342 mutex_init(&ioc->base_cmds.mutex); 4343 ioc->base_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL); 4344 ioc->base_cmds.status = MPT2_CMD_NOT_USED; 4345 4346 /* port_enable command bits */ 4347 ioc->port_enable_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL); 4348 ioc->port_enable_cmds.status = MPT2_CMD_NOT_USED; 4349 4350 /* transport internal command bits */ 4351 ioc->transport_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL); 4352 ioc->transport_cmds.status = MPT2_CMD_NOT_USED; 4353 mutex_init(&ioc->transport_cmds.mutex); 4354 4355 /* scsih internal command bits */ 4356 ioc->scsih_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL); 4357 ioc->scsih_cmds.status = MPT2_CMD_NOT_USED; 4358 mutex_init(&ioc->scsih_cmds.mutex); 4359 4360 /* task management internal command bits */ 4361 ioc->tm_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL); 4362 ioc->tm_cmds.status = MPT2_CMD_NOT_USED; 4363 mutex_init(&ioc->tm_cmds.mutex); 4364 4365 /* config page internal command bits */ 4366 ioc->config_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL); 4367 ioc->config_cmds.status = MPT2_CMD_NOT_USED; 4368 mutex_init(&ioc->config_cmds.mutex); 4369 4370 /* ctl module internal command bits */ 4371 ioc->ctl_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL); 4372 ioc->ctl_cmds.sense = kzalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL); 4373 ioc->ctl_cmds.status = MPT2_CMD_NOT_USED; 4374 mutex_init(&ioc->ctl_cmds.mutex); 4375 4376 if (!ioc->base_cmds.reply || !ioc->transport_cmds.reply || 4377 !ioc->scsih_cmds.reply || !ioc->tm_cmds.reply || 4378 !ioc->config_cmds.reply || !ioc->ctl_cmds.reply || 4379 !ioc->ctl_cmds.sense) { 4380 r = -ENOMEM; 4381 goto out_free_resources; 4382 } 4383 4384 if (!ioc->base_cmds.reply || !ioc->transport_cmds.reply || 4385 !ioc->scsih_cmds.reply || !ioc->tm_cmds.reply || 4386 !ioc->config_cmds.reply || !ioc->ctl_cmds.reply) { 4387 r = -ENOMEM; 4388 goto out_free_resources; 4389 } 4390 4391 for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++) 4392 ioc->event_masks[i] = -1; 4393 4394 /* here we enable the events we care about */ 4395 _base_unmask_events(ioc, MPI2_EVENT_SAS_DISCOVERY); 4396 _base_unmask_events(ioc, MPI2_EVENT_SAS_BROADCAST_PRIMITIVE); 4397 _base_unmask_events(ioc, MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST); 4398 _base_unmask_events(ioc, MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE); 4399 _base_unmask_events(ioc, MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE); 4400 _base_unmask_events(ioc, MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST); 4401 _base_unmask_events(ioc, MPI2_EVENT_IR_VOLUME); 4402 _base_unmask_events(ioc, MPI2_EVENT_IR_PHYSICAL_DISK); 4403 _base_unmask_events(ioc, MPI2_EVENT_IR_OPERATION_STATUS); 4404 _base_unmask_events(ioc, MPI2_EVENT_LOG_ENTRY_ADDED); 4405 r = _base_make_ioc_operational(ioc, CAN_SLEEP); 4406 if (r) 4407 goto out_free_resources; 4408 4409 if (missing_delay[0] != -1 && missing_delay[1] != -1) 4410 _base_update_missing_delay(ioc, missing_delay[0], 4411 missing_delay[1]); 4412 4413 return 0; 4414 4415 out_free_resources: 4416 4417 ioc->remove_host = 1; 4418 mpt2sas_base_free_resources(ioc); 4419 _base_release_memory_pools(ioc); 4420 pci_set_drvdata(ioc->pdev, NULL); 4421 kfree(ioc->cpu_msix_table); 4422 if (ioc->is_warpdrive) 4423 kfree(ioc->reply_post_host_index); 4424 kfree(ioc->pd_handles); 4425 kfree(ioc->tm_cmds.reply); 4426 kfree(ioc->transport_cmds.reply); 4427 kfree(ioc->scsih_cmds.reply); 4428 kfree(ioc->config_cmds.reply); 4429 kfree(ioc->base_cmds.reply); 4430 kfree(ioc->port_enable_cmds.reply); 4431 kfree(ioc->ctl_cmds.reply); 4432 kfree(ioc->ctl_cmds.sense); 4433 kfree(ioc->pfacts); 4434 ioc->ctl_cmds.reply = NULL; 4435 ioc->base_cmds.reply = NULL; 4436 ioc->tm_cmds.reply = NULL; 4437 ioc->scsih_cmds.reply = NULL; 4438 ioc->transport_cmds.reply = NULL; 4439 ioc->config_cmds.reply = NULL; 4440 ioc->pfacts = NULL; 4441 return r; 4442} 4443 4444 4445/** 4446 * mpt2sas_base_detach - remove controller instance 4447 * @ioc: per adapter object 4448 * 4449 * Return nothing. 4450 */ 4451void 4452mpt2sas_base_detach(struct MPT2SAS_ADAPTER *ioc) 4453{ 4454 4455 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 4456 __func__)); 4457 4458 mpt2sas_base_stop_watchdog(ioc); 4459 mpt2sas_base_free_resources(ioc); 4460 _base_release_memory_pools(ioc); 4461 pci_set_drvdata(ioc->pdev, NULL); 4462 kfree(ioc->cpu_msix_table); 4463 if (ioc->is_warpdrive) 4464 kfree(ioc->reply_post_host_index); 4465 kfree(ioc->pd_handles); 4466 kfree(ioc->pfacts); 4467 kfree(ioc->ctl_cmds.reply); 4468 kfree(ioc->ctl_cmds.sense); 4469 kfree(ioc->base_cmds.reply); 4470 kfree(ioc->port_enable_cmds.reply); 4471 kfree(ioc->tm_cmds.reply); 4472 kfree(ioc->transport_cmds.reply); 4473 kfree(ioc->scsih_cmds.reply); 4474 kfree(ioc->config_cmds.reply); 4475} 4476 4477/** 4478 * _base_reset_handler - reset callback handler (for base) 4479 * @ioc: per adapter object 4480 * @reset_phase: phase 4481 * 4482 * The handler for doing any required cleanup or initialization. 4483 * 4484 * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET, 4485 * MPT2_IOC_DONE_RESET 4486 * 4487 * Return nothing. 4488 */ 4489static void 4490_base_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase) 4491{ 4492 mpt2sas_scsih_reset_handler(ioc, reset_phase); 4493 mpt2sas_ctl_reset_handler(ioc, reset_phase); 4494 switch (reset_phase) { 4495 case MPT2_IOC_PRE_RESET: 4496 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " 4497 "MPT2_IOC_PRE_RESET\n", ioc->name, __func__)); 4498 break; 4499 case MPT2_IOC_AFTER_RESET: 4500 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " 4501 "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__)); 4502 if (ioc->transport_cmds.status & MPT2_CMD_PENDING) { 4503 ioc->transport_cmds.status |= MPT2_CMD_RESET; 4504 mpt2sas_base_free_smid(ioc, ioc->transport_cmds.smid); 4505 complete(&ioc->transport_cmds.done); 4506 } 4507 if (ioc->base_cmds.status & MPT2_CMD_PENDING) { 4508 ioc->base_cmds.status |= MPT2_CMD_RESET; 4509 mpt2sas_base_free_smid(ioc, ioc->base_cmds.smid); 4510 complete(&ioc->base_cmds.done); 4511 } 4512 if (ioc->port_enable_cmds.status & MPT2_CMD_PENDING) { 4513 ioc->port_enable_failed = 1; 4514 ioc->port_enable_cmds.status |= MPT2_CMD_RESET; 4515 mpt2sas_base_free_smid(ioc, ioc->port_enable_cmds.smid); 4516 if (ioc->is_driver_loading) { 4517 ioc->start_scan_failed = 4518 MPI2_IOCSTATUS_INTERNAL_ERROR; 4519 ioc->start_scan = 0; 4520 ioc->port_enable_cmds.status = 4521 MPT2_CMD_NOT_USED; 4522 } else 4523 complete(&ioc->port_enable_cmds.done); 4524 4525 } 4526 if (ioc->config_cmds.status & MPT2_CMD_PENDING) { 4527 ioc->config_cmds.status |= MPT2_CMD_RESET; 4528 mpt2sas_base_free_smid(ioc, ioc->config_cmds.smid); 4529 ioc->config_cmds.smid = USHRT_MAX; 4530 complete(&ioc->config_cmds.done); 4531 } 4532 break; 4533 case MPT2_IOC_DONE_RESET: 4534 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " 4535 "MPT2_IOC_DONE_RESET\n", ioc->name, __func__)); 4536 break; 4537 } 4538} 4539 4540/** 4541 * _wait_for_commands_to_complete - reset controller 4542 * @ioc: Pointer to MPT_ADAPTER structure 4543 * @sleep_flag: CAN_SLEEP or NO_SLEEP 4544 * 4545 * This function waiting(3s) for all pending commands to complete 4546 * prior to putting controller in reset. 4547 */ 4548static void 4549_wait_for_commands_to_complete(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) 4550{ 4551 u32 ioc_state; 4552 unsigned long flags; 4553 u16 i; 4554 4555 ioc->pending_io_count = 0; 4556 if (sleep_flag != CAN_SLEEP) 4557 return; 4558 4559 ioc_state = mpt2sas_base_get_iocstate(ioc, 0); 4560 if ((ioc_state & MPI2_IOC_STATE_MASK) != MPI2_IOC_STATE_OPERATIONAL) 4561 return; 4562 4563 /* pending command count */ 4564 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 4565 for (i = 0; i < ioc->scsiio_depth; i++) 4566 if (ioc->scsi_lookup[i].cb_idx != 0xFF) 4567 ioc->pending_io_count++; 4568 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 4569 4570 if (!ioc->pending_io_count) 4571 return; 4572 4573 /* wait for pending commands to complete */ 4574 wait_event_timeout(ioc->reset_wq, ioc->pending_io_count == 0, 10 * HZ); 4575} 4576 4577/** 4578 * mpt2sas_base_hard_reset_handler - reset controller 4579 * @ioc: Pointer to MPT_ADAPTER structure 4580 * @sleep_flag: CAN_SLEEP or NO_SLEEP 4581 * @type: FORCE_BIG_HAMMER or SOFT_RESET 4582 * 4583 * Returns 0 for success, non-zero for failure. 4584 */ 4585int 4586mpt2sas_base_hard_reset_handler(struct MPT2SAS_ADAPTER *ioc, int sleep_flag, 4587 enum reset_type type) 4588{ 4589 int r; 4590 unsigned long flags; 4591 4592 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name, 4593 __func__)); 4594 4595 if (ioc->pci_error_recovery) { 4596 printk(MPT2SAS_ERR_FMT "%s: pci error recovery reset\n", 4597 ioc->name, __func__); 4598 r = 0; 4599 goto out; 4600 } 4601 4602 if (mpt2sas_fwfault_debug) 4603 mpt2sas_halt_firmware(ioc); 4604 4605 /* TODO - What we really should be doing is pulling 4606 * out all the code associated with NO_SLEEP; its never used. 4607 * That is legacy code from mpt fusion driver, ported over. 4608 * I will leave this BUG_ON here for now till its been resolved. 4609 */ 4610 BUG_ON(sleep_flag == NO_SLEEP); 4611 4612 /* wait for an active reset in progress to complete */ 4613 if (!mutex_trylock(&ioc->reset_in_progress_mutex)) { 4614 do { 4615 ssleep(1); 4616 } while (ioc->shost_recovery == 1); 4617 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit\n", ioc->name, 4618 __func__)); 4619 return ioc->ioc_reset_in_progress_status; 4620 } 4621 4622 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); 4623 ioc->shost_recovery = 1; 4624 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); 4625 4626 _base_reset_handler(ioc, MPT2_IOC_PRE_RESET); 4627 _wait_for_commands_to_complete(ioc, sleep_flag); 4628 _base_mask_interrupts(ioc); 4629 r = _base_make_ioc_ready(ioc, sleep_flag, type); 4630 if (r) 4631 goto out; 4632 _base_reset_handler(ioc, MPT2_IOC_AFTER_RESET); 4633 4634 /* If this hard reset is called while port enable is active, then 4635 * there is no reason to call make_ioc_operational 4636 */ 4637 if (ioc->is_driver_loading && ioc->port_enable_failed) { 4638 ioc->remove_host = 1; 4639 r = -EFAULT; 4640 goto out; 4641 } 4642 r = _base_make_ioc_operational(ioc, sleep_flag); 4643 if (!r) 4644 _base_reset_handler(ioc, MPT2_IOC_DONE_RESET); 4645 out: 4646 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: %s\n", 4647 ioc->name, __func__, ((r == 0) ? "SUCCESS" : "FAILED"))); 4648 4649 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); 4650 ioc->ioc_reset_in_progress_status = r; 4651 ioc->shost_recovery = 0; 4652 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); 4653 mutex_unlock(&ioc->reset_in_progress_mutex); 4654 4655 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit\n", ioc->name, 4656 __func__)); 4657 return r; 4658} 4659