mpt2sas_base.c revision 338b131a3269881c7431234855c93c219b0979b6
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 69#define MAX_HBA_QUEUE_DEPTH 30000 70#define MAX_CHAIN_DEPTH 100000 71static int max_queue_depth = -1; 72module_param(max_queue_depth, int, 0); 73MODULE_PARM_DESC(max_queue_depth, " max controller queue depth "); 74 75static int max_sgl_entries = -1; 76module_param(max_sgl_entries, int, 0); 77MODULE_PARM_DESC(max_sgl_entries, " max sg entries "); 78 79static int msix_disable = -1; 80module_param(msix_disable, int, 0); 81MODULE_PARM_DESC(msix_disable, " disable msix routed interrupts (default=0)"); 82 83static int missing_delay[2] = {-1, -1}; 84module_param_array(missing_delay, int, NULL, 0); 85MODULE_PARM_DESC(missing_delay, " device missing delay , io missing delay"); 86 87static int mpt2sas_fwfault_debug; 88MODULE_PARM_DESC(mpt2sas_fwfault_debug, " enable detection of firmware fault " 89 "and halt firmware - (default=0)"); 90 91static int disable_discovery = -1; 92module_param(disable_discovery, int, 0); 93MODULE_PARM_DESC(disable_discovery, " disable discovery "); 94 95/** 96 * _scsih_set_fwfault_debug - global setting of ioc->fwfault_debug. 97 * 98 */ 99static int 100_scsih_set_fwfault_debug(const char *val, struct kernel_param *kp) 101{ 102 int ret = param_set_int(val, kp); 103 struct MPT2SAS_ADAPTER *ioc; 104 105 if (ret) 106 return ret; 107 108 printk(KERN_INFO "setting fwfault_debug(%d)\n", mpt2sas_fwfault_debug); 109 list_for_each_entry(ioc, &mpt2sas_ioc_list, list) 110 ioc->fwfault_debug = mpt2sas_fwfault_debug; 111 return 0; 112} 113 114module_param_call(mpt2sas_fwfault_debug, _scsih_set_fwfault_debug, 115 param_get_int, &mpt2sas_fwfault_debug, 0644); 116 117/** 118 * mpt2sas_remove_dead_ioc_func - kthread context to remove dead ioc 119 * @arg: input argument, used to derive ioc 120 * 121 * Return 0 if controller is removed from pci subsystem. 122 * Return -1 for other case. 123 */ 124static int mpt2sas_remove_dead_ioc_func(void *arg) 125{ 126 struct MPT2SAS_ADAPTER *ioc = (struct MPT2SAS_ADAPTER *)arg; 127 struct pci_dev *pdev; 128 129 if ((ioc == NULL)) 130 return -1; 131 132 pdev = ioc->pdev; 133 if ((pdev == NULL)) 134 return -1; 135 pci_stop_and_remove_bus_device(pdev); 136 return 0; 137} 138 139 140/** 141 * _base_fault_reset_work - workq handling ioc fault conditions 142 * @work: input argument, used to derive ioc 143 * Context: sleep. 144 * 145 * Return nothing. 146 */ 147static void 148_base_fault_reset_work(struct work_struct *work) 149{ 150 struct MPT2SAS_ADAPTER *ioc = 151 container_of(work, struct MPT2SAS_ADAPTER, fault_reset_work.work); 152 unsigned long flags; 153 u32 doorbell; 154 int rc; 155 struct task_struct *p; 156 157 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); 158 if (ioc->shost_recovery) 159 goto rearm_timer; 160 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); 161 162 doorbell = mpt2sas_base_get_iocstate(ioc, 0); 163 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_MASK) { 164 printk(MPT2SAS_INFO_FMT "%s : SAS host is non-operational !!!!\n", 165 ioc->name, __func__); 166 167 /* 168 * Call _scsih_flush_pending_cmds callback so that we flush all 169 * pending commands back to OS. This call is required to aovid 170 * deadlock at block layer. Dead IOC will fail to do diag reset, 171 * and this call is safe since dead ioc will never return any 172 * command back from HW. 173 */ 174 ioc->schedule_dead_ioc_flush_running_cmds(ioc); 175 /* 176 * Set remove_host flag early since kernel thread will 177 * take some time to execute. 178 */ 179 ioc->remove_host = 1; 180 /*Remove the Dead Host */ 181 p = kthread_run(mpt2sas_remove_dead_ioc_func, ioc, 182 "mpt2sas_dead_ioc_%d", ioc->id); 183 if (IS_ERR(p)) { 184 printk(MPT2SAS_ERR_FMT 185 "%s: Running mpt2sas_dead_ioc thread failed !!!!\n", 186 ioc->name, __func__); 187 } else { 188 printk(MPT2SAS_ERR_FMT 189 "%s: Running mpt2sas_dead_ioc thread success !!!!\n", 190 ioc->name, __func__); 191 } 192 193 return; /* don't rearm timer */ 194 } 195 196 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) { 197 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, 198 FORCE_BIG_HAMMER); 199 printk(MPT2SAS_WARN_FMT "%s: hard reset: %s\n", ioc->name, 200 __func__, (rc == 0) ? "success" : "failed"); 201 doorbell = mpt2sas_base_get_iocstate(ioc, 0); 202 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) 203 mpt2sas_base_fault_info(ioc, doorbell & 204 MPI2_DOORBELL_DATA_MASK); 205 } 206 207 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); 208 rearm_timer: 209 if (ioc->fault_reset_work_q) 210 queue_delayed_work(ioc->fault_reset_work_q, 211 &ioc->fault_reset_work, 212 msecs_to_jiffies(FAULT_POLLING_INTERVAL)); 213 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); 214} 215 216/** 217 * mpt2sas_base_start_watchdog - start the fault_reset_work_q 218 * @ioc: per adapter object 219 * Context: sleep. 220 * 221 * Return nothing. 222 */ 223void 224mpt2sas_base_start_watchdog(struct MPT2SAS_ADAPTER *ioc) 225{ 226 unsigned long flags; 227 228 if (ioc->fault_reset_work_q) 229 return; 230 231 /* initialize fault polling */ 232 INIT_DELAYED_WORK(&ioc->fault_reset_work, _base_fault_reset_work); 233 snprintf(ioc->fault_reset_work_q_name, 234 sizeof(ioc->fault_reset_work_q_name), "poll_%d_status", ioc->id); 235 ioc->fault_reset_work_q = 236 create_singlethread_workqueue(ioc->fault_reset_work_q_name); 237 if (!ioc->fault_reset_work_q) { 238 printk(MPT2SAS_ERR_FMT "%s: failed (line=%d)\n", 239 ioc->name, __func__, __LINE__); 240 return; 241 } 242 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); 243 if (ioc->fault_reset_work_q) 244 queue_delayed_work(ioc->fault_reset_work_q, 245 &ioc->fault_reset_work, 246 msecs_to_jiffies(FAULT_POLLING_INTERVAL)); 247 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); 248} 249 250/** 251 * mpt2sas_base_stop_watchdog - stop the fault_reset_work_q 252 * @ioc: per adapter object 253 * Context: sleep. 254 * 255 * Return nothing. 256 */ 257void 258mpt2sas_base_stop_watchdog(struct MPT2SAS_ADAPTER *ioc) 259{ 260 unsigned long flags; 261 struct workqueue_struct *wq; 262 263 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); 264 wq = ioc->fault_reset_work_q; 265 ioc->fault_reset_work_q = NULL; 266 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); 267 if (wq) { 268 if (!cancel_delayed_work(&ioc->fault_reset_work)) 269 flush_workqueue(wq); 270 destroy_workqueue(wq); 271 } 272} 273 274/** 275 * mpt2sas_base_fault_info - verbose translation of firmware FAULT code 276 * @ioc: per adapter object 277 * @fault_code: fault code 278 * 279 * Return nothing. 280 */ 281void 282mpt2sas_base_fault_info(struct MPT2SAS_ADAPTER *ioc , u16 fault_code) 283{ 284 printk(MPT2SAS_ERR_FMT "fault_state(0x%04x)!\n", 285 ioc->name, fault_code); 286} 287 288/** 289 * mpt2sas_halt_firmware - halt's mpt controller firmware 290 * @ioc: per adapter object 291 * 292 * For debugging timeout related issues. Writing 0xCOFFEE00 293 * to the doorbell register will halt controller firmware. With 294 * the purpose to stop both driver and firmware, the enduser can 295 * obtain a ring buffer from controller UART. 296 */ 297void 298mpt2sas_halt_firmware(struct MPT2SAS_ADAPTER *ioc) 299{ 300 u32 doorbell; 301 302 if (!ioc->fwfault_debug) 303 return; 304 305 dump_stack(); 306 307 doorbell = readl(&ioc->chip->Doorbell); 308 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) 309 mpt2sas_base_fault_info(ioc , doorbell); 310 else { 311 writel(0xC0FFEE00, &ioc->chip->Doorbell); 312 printk(MPT2SAS_ERR_FMT "Firmware is halted due to command " 313 "timeout\n", ioc->name); 314 } 315 316 panic("panic in %s\n", __func__); 317} 318 319#ifdef CONFIG_SCSI_MPT2SAS_LOGGING 320/** 321 * _base_sas_ioc_info - verbose translation of the ioc status 322 * @ioc: per adapter object 323 * @mpi_reply: reply mf payload returned from firmware 324 * @request_hdr: request mf 325 * 326 * Return nothing. 327 */ 328static void 329_base_sas_ioc_info(struct MPT2SAS_ADAPTER *ioc, MPI2DefaultReply_t *mpi_reply, 330 MPI2RequestHeader_t *request_hdr) 331{ 332 u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & 333 MPI2_IOCSTATUS_MASK; 334 char *desc = NULL; 335 u16 frame_sz; 336 char *func_str = NULL; 337 338 /* SCSI_IO, RAID_PASS are handled from _scsih_scsi_ioc_info */ 339 if (request_hdr->Function == MPI2_FUNCTION_SCSI_IO_REQUEST || 340 request_hdr->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH || 341 request_hdr->Function == MPI2_FUNCTION_EVENT_NOTIFICATION) 342 return; 343 344 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE) 345 return; 346 347 switch (ioc_status) { 348 349/**************************************************************************** 350* Common IOCStatus values for all replies 351****************************************************************************/ 352 353 case MPI2_IOCSTATUS_INVALID_FUNCTION: 354 desc = "invalid function"; 355 break; 356 case MPI2_IOCSTATUS_BUSY: 357 desc = "busy"; 358 break; 359 case MPI2_IOCSTATUS_INVALID_SGL: 360 desc = "invalid sgl"; 361 break; 362 case MPI2_IOCSTATUS_INTERNAL_ERROR: 363 desc = "internal error"; 364 break; 365 case MPI2_IOCSTATUS_INVALID_VPID: 366 desc = "invalid vpid"; 367 break; 368 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES: 369 desc = "insufficient resources"; 370 break; 371 case MPI2_IOCSTATUS_INVALID_FIELD: 372 desc = "invalid field"; 373 break; 374 case MPI2_IOCSTATUS_INVALID_STATE: 375 desc = "invalid state"; 376 break; 377 case MPI2_IOCSTATUS_OP_STATE_NOT_SUPPORTED: 378 desc = "op state not supported"; 379 break; 380 381/**************************************************************************** 382* Config IOCStatus values 383****************************************************************************/ 384 385 case MPI2_IOCSTATUS_CONFIG_INVALID_ACTION: 386 desc = "config invalid action"; 387 break; 388 case MPI2_IOCSTATUS_CONFIG_INVALID_TYPE: 389 desc = "config invalid type"; 390 break; 391 case MPI2_IOCSTATUS_CONFIG_INVALID_PAGE: 392 desc = "config invalid page"; 393 break; 394 case MPI2_IOCSTATUS_CONFIG_INVALID_DATA: 395 desc = "config invalid data"; 396 break; 397 case MPI2_IOCSTATUS_CONFIG_NO_DEFAULTS: 398 desc = "config no defaults"; 399 break; 400 case MPI2_IOCSTATUS_CONFIG_CANT_COMMIT: 401 desc = "config cant commit"; 402 break; 403 404/**************************************************************************** 405* SCSI IO Reply 406****************************************************************************/ 407 408 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR: 409 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE: 410 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE: 411 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN: 412 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN: 413 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR: 414 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR: 415 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED: 416 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: 417 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED: 418 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED: 419 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED: 420 break; 421 422/**************************************************************************** 423* For use by SCSI Initiator and SCSI Target end-to-end data protection 424****************************************************************************/ 425 426 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR: 427 desc = "eedp guard error"; 428 break; 429 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR: 430 desc = "eedp ref tag error"; 431 break; 432 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR: 433 desc = "eedp app tag error"; 434 break; 435 436/**************************************************************************** 437* SCSI Target values 438****************************************************************************/ 439 440 case MPI2_IOCSTATUS_TARGET_INVALID_IO_INDEX: 441 desc = "target invalid io index"; 442 break; 443 case MPI2_IOCSTATUS_TARGET_ABORTED: 444 desc = "target aborted"; 445 break; 446 case MPI2_IOCSTATUS_TARGET_NO_CONN_RETRYABLE: 447 desc = "target no conn retryable"; 448 break; 449 case MPI2_IOCSTATUS_TARGET_NO_CONNECTION: 450 desc = "target no connection"; 451 break; 452 case MPI2_IOCSTATUS_TARGET_XFER_COUNT_MISMATCH: 453 desc = "target xfer count mismatch"; 454 break; 455 case MPI2_IOCSTATUS_TARGET_DATA_OFFSET_ERROR: 456 desc = "target data offset error"; 457 break; 458 case MPI2_IOCSTATUS_TARGET_TOO_MUCH_WRITE_DATA: 459 desc = "target too much write data"; 460 break; 461 case MPI2_IOCSTATUS_TARGET_IU_TOO_SHORT: 462 desc = "target iu too short"; 463 break; 464 case MPI2_IOCSTATUS_TARGET_ACK_NAK_TIMEOUT: 465 desc = "target ack nak timeout"; 466 break; 467 case MPI2_IOCSTATUS_TARGET_NAK_RECEIVED: 468 desc = "target nak received"; 469 break; 470 471/**************************************************************************** 472* Serial Attached SCSI values 473****************************************************************************/ 474 475 case MPI2_IOCSTATUS_SAS_SMP_REQUEST_FAILED: 476 desc = "smp request failed"; 477 break; 478 case MPI2_IOCSTATUS_SAS_SMP_DATA_OVERRUN: 479 desc = "smp data overrun"; 480 break; 481 482/**************************************************************************** 483* Diagnostic Buffer Post / Diagnostic Release values 484****************************************************************************/ 485 486 case MPI2_IOCSTATUS_DIAGNOSTIC_RELEASED: 487 desc = "diagnostic released"; 488 break; 489 default: 490 break; 491 } 492 493 if (!desc) 494 return; 495 496 switch (request_hdr->Function) { 497 case MPI2_FUNCTION_CONFIG: 498 frame_sz = sizeof(Mpi2ConfigRequest_t) + ioc->sge_size; 499 func_str = "config_page"; 500 break; 501 case MPI2_FUNCTION_SCSI_TASK_MGMT: 502 frame_sz = sizeof(Mpi2SCSITaskManagementRequest_t); 503 func_str = "task_mgmt"; 504 break; 505 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL: 506 frame_sz = sizeof(Mpi2SasIoUnitControlRequest_t); 507 func_str = "sas_iounit_ctl"; 508 break; 509 case MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR: 510 frame_sz = sizeof(Mpi2SepRequest_t); 511 func_str = "enclosure"; 512 break; 513 case MPI2_FUNCTION_IOC_INIT: 514 frame_sz = sizeof(Mpi2IOCInitRequest_t); 515 func_str = "ioc_init"; 516 break; 517 case MPI2_FUNCTION_PORT_ENABLE: 518 frame_sz = sizeof(Mpi2PortEnableRequest_t); 519 func_str = "port_enable"; 520 break; 521 case MPI2_FUNCTION_SMP_PASSTHROUGH: 522 frame_sz = sizeof(Mpi2SmpPassthroughRequest_t) + ioc->sge_size; 523 func_str = "smp_passthru"; 524 break; 525 default: 526 frame_sz = 32; 527 func_str = "unknown"; 528 break; 529 } 530 531 printk(MPT2SAS_WARN_FMT "ioc_status: %s(0x%04x), request(0x%p)," 532 " (%s)\n", ioc->name, desc, ioc_status, request_hdr, func_str); 533 534 _debug_dump_mf(request_hdr, frame_sz/4); 535} 536 537/** 538 * _base_display_event_data - verbose translation of firmware asyn events 539 * @ioc: per adapter object 540 * @mpi_reply: reply mf payload returned from firmware 541 * 542 * Return nothing. 543 */ 544static void 545_base_display_event_data(struct MPT2SAS_ADAPTER *ioc, 546 Mpi2EventNotificationReply_t *mpi_reply) 547{ 548 char *desc = NULL; 549 u16 event; 550 551 if (!(ioc->logging_level & MPT_DEBUG_EVENTS)) 552 return; 553 554 event = le16_to_cpu(mpi_reply->Event); 555 556 switch (event) { 557 case MPI2_EVENT_LOG_DATA: 558 desc = "Log Data"; 559 break; 560 case MPI2_EVENT_STATE_CHANGE: 561 desc = "Status Change"; 562 break; 563 case MPI2_EVENT_HARD_RESET_RECEIVED: 564 desc = "Hard Reset Received"; 565 break; 566 case MPI2_EVENT_EVENT_CHANGE: 567 desc = "Event Change"; 568 break; 569 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE: 570 desc = "Device Status Change"; 571 break; 572 case MPI2_EVENT_IR_OPERATION_STATUS: 573 if (!ioc->hide_ir_msg) 574 desc = "IR Operation Status"; 575 break; 576 case MPI2_EVENT_SAS_DISCOVERY: 577 { 578 Mpi2EventDataSasDiscovery_t *event_data = 579 (Mpi2EventDataSasDiscovery_t *)mpi_reply->EventData; 580 printk(MPT2SAS_INFO_FMT "Discovery: (%s)", ioc->name, 581 (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ? 582 "start" : "stop"); 583 if (event_data->DiscoveryStatus) 584 printk("discovery_status(0x%08x)", 585 le32_to_cpu(event_data->DiscoveryStatus)); 586 printk("\n"); 587 return; 588 } 589 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE: 590 desc = "SAS Broadcast Primitive"; 591 break; 592 case MPI2_EVENT_SAS_INIT_DEVICE_STATUS_CHANGE: 593 desc = "SAS Init Device Status Change"; 594 break; 595 case MPI2_EVENT_SAS_INIT_TABLE_OVERFLOW: 596 desc = "SAS Init Table Overflow"; 597 break; 598 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST: 599 desc = "SAS Topology Change List"; 600 break; 601 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE: 602 desc = "SAS Enclosure Device Status Change"; 603 break; 604 case MPI2_EVENT_IR_VOLUME: 605 if (!ioc->hide_ir_msg) 606 desc = "IR Volume"; 607 break; 608 case MPI2_EVENT_IR_PHYSICAL_DISK: 609 if (!ioc->hide_ir_msg) 610 desc = "IR Physical Disk"; 611 break; 612 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST: 613 if (!ioc->hide_ir_msg) 614 desc = "IR Configuration Change List"; 615 break; 616 case MPI2_EVENT_LOG_ENTRY_ADDED: 617 if (!ioc->hide_ir_msg) 618 desc = "Log Entry Added"; 619 break; 620 } 621 622 if (!desc) 623 return; 624 625 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, desc); 626} 627#endif 628 629/** 630 * _base_sas_log_info - verbose translation of firmware log info 631 * @ioc: per adapter object 632 * @log_info: log info 633 * 634 * Return nothing. 635 */ 636static void 637_base_sas_log_info(struct MPT2SAS_ADAPTER *ioc , u32 log_info) 638{ 639 union loginfo_type { 640 u32 loginfo; 641 struct { 642 u32 subcode:16; 643 u32 code:8; 644 u32 originator:4; 645 u32 bus_type:4; 646 } dw; 647 }; 648 union loginfo_type sas_loginfo; 649 char *originator_str = NULL; 650 651 sas_loginfo.loginfo = log_info; 652 if (sas_loginfo.dw.bus_type != 3 /*SAS*/) 653 return; 654 655 /* each nexus loss loginfo */ 656 if (log_info == 0x31170000) 657 return; 658 659 /* eat the loginfos associated with task aborts */ 660 if (ioc->ignore_loginfos && (log_info == 0x30050000 || log_info == 661 0x31140000 || log_info == 0x31130000)) 662 return; 663 664 switch (sas_loginfo.dw.originator) { 665 case 0: 666 originator_str = "IOP"; 667 break; 668 case 1: 669 originator_str = "PL"; 670 break; 671 case 2: 672 if (!ioc->hide_ir_msg) 673 originator_str = "IR"; 674 else 675 originator_str = "WarpDrive"; 676 break; 677 } 678 679 printk(MPT2SAS_WARN_FMT "log_info(0x%08x): originator(%s), " 680 "code(0x%02x), sub_code(0x%04x)\n", ioc->name, log_info, 681 originator_str, sas_loginfo.dw.code, 682 sas_loginfo.dw.subcode); 683} 684 685/** 686 * _base_display_reply_info - 687 * @ioc: per adapter object 688 * @smid: system request message index 689 * @msix_index: MSIX table index supplied by the OS 690 * @reply: reply message frame(lower 32bit addr) 691 * 692 * Return nothing. 693 */ 694static void 695_base_display_reply_info(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, 696 u32 reply) 697{ 698 MPI2DefaultReply_t *mpi_reply; 699 u16 ioc_status; 700 701 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); 702 if (unlikely(!mpi_reply)) { 703 printk(MPT2SAS_ERR_FMT "mpi_reply not valid at %s:%d/%s()!\n", 704 ioc->name, __FILE__, __LINE__, __func__); 705 return; 706 } 707 ioc_status = le16_to_cpu(mpi_reply->IOCStatus); 708#ifdef CONFIG_SCSI_MPT2SAS_LOGGING 709 if ((ioc_status & MPI2_IOCSTATUS_MASK) && 710 (ioc->logging_level & MPT_DEBUG_REPLY)) { 711 _base_sas_ioc_info(ioc , mpi_reply, 712 mpt2sas_base_get_msg_frame(ioc, smid)); 713 } 714#endif 715 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE) 716 _base_sas_log_info(ioc, le32_to_cpu(mpi_reply->IOCLogInfo)); 717} 718 719/** 720 * mpt2sas_base_done - base internal command completion routine 721 * @ioc: per adapter object 722 * @smid: system request message index 723 * @msix_index: MSIX table index supplied by the OS 724 * @reply: reply message frame(lower 32bit addr) 725 * 726 * Return 1 meaning mf should be freed from _base_interrupt 727 * 0 means the mf is freed from this function. 728 */ 729u8 730mpt2sas_base_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, 731 u32 reply) 732{ 733 MPI2DefaultReply_t *mpi_reply; 734 735 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); 736 if (mpi_reply && mpi_reply->Function == MPI2_FUNCTION_EVENT_ACK) 737 return 1; 738 739 if (ioc->base_cmds.status == MPT2_CMD_NOT_USED) 740 return 1; 741 742 ioc->base_cmds.status |= MPT2_CMD_COMPLETE; 743 if (mpi_reply) { 744 ioc->base_cmds.status |= MPT2_CMD_REPLY_VALID; 745 memcpy(ioc->base_cmds.reply, mpi_reply, mpi_reply->MsgLength*4); 746 } 747 ioc->base_cmds.status &= ~MPT2_CMD_PENDING; 748 749 complete(&ioc->base_cmds.done); 750 return 1; 751} 752 753/** 754 * _base_async_event - main callback handler for firmware asyn events 755 * @ioc: per adapter object 756 * @msix_index: MSIX table index supplied by the OS 757 * @reply: reply message frame(lower 32bit addr) 758 * 759 * Return 1 meaning mf should be freed from _base_interrupt 760 * 0 means the mf is freed from this function. 761 */ 762static u8 763_base_async_event(struct MPT2SAS_ADAPTER *ioc, u8 msix_index, u32 reply) 764{ 765 Mpi2EventNotificationReply_t *mpi_reply; 766 Mpi2EventAckRequest_t *ack_request; 767 u16 smid; 768 769 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); 770 if (!mpi_reply) 771 return 1; 772 if (mpi_reply->Function != MPI2_FUNCTION_EVENT_NOTIFICATION) 773 return 1; 774#ifdef CONFIG_SCSI_MPT2SAS_LOGGING 775 _base_display_event_data(ioc, mpi_reply); 776#endif 777 if (!(mpi_reply->AckRequired & MPI2_EVENT_NOTIFICATION_ACK_REQUIRED)) 778 goto out; 779 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx); 780 if (!smid) { 781 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", 782 ioc->name, __func__); 783 goto out; 784 } 785 786 ack_request = mpt2sas_base_get_msg_frame(ioc, smid); 787 memset(ack_request, 0, sizeof(Mpi2EventAckRequest_t)); 788 ack_request->Function = MPI2_FUNCTION_EVENT_ACK; 789 ack_request->Event = mpi_reply->Event; 790 ack_request->EventContext = mpi_reply->EventContext; 791 ack_request->VF_ID = 0; /* TODO */ 792 ack_request->VP_ID = 0; 793 mpt2sas_base_put_smid_default(ioc, smid); 794 795 out: 796 797 /* scsih callback handler */ 798 mpt2sas_scsih_event_callback(ioc, msix_index, reply); 799 800 /* ctl callback handler */ 801 mpt2sas_ctl_event_callback(ioc, msix_index, reply); 802 803 return 1; 804} 805 806/** 807 * _base_get_cb_idx - obtain the callback index 808 * @ioc: per adapter object 809 * @smid: system request message index 810 * 811 * Return callback index. 812 */ 813static u8 814_base_get_cb_idx(struct MPT2SAS_ADAPTER *ioc, u16 smid) 815{ 816 int i; 817 u8 cb_idx; 818 819 if (smid < ioc->hi_priority_smid) { 820 i = smid - 1; 821 cb_idx = ioc->scsi_lookup[i].cb_idx; 822 } else if (smid < ioc->internal_smid) { 823 i = smid - ioc->hi_priority_smid; 824 cb_idx = ioc->hpr_lookup[i].cb_idx; 825 } else if (smid <= ioc->hba_queue_depth) { 826 i = smid - ioc->internal_smid; 827 cb_idx = ioc->internal_lookup[i].cb_idx; 828 } else 829 cb_idx = 0xFF; 830 return cb_idx; 831} 832 833/** 834 * _base_mask_interrupts - disable interrupts 835 * @ioc: per adapter object 836 * 837 * Disabling ResetIRQ, Reply and Doorbell Interrupts 838 * 839 * Return nothing. 840 */ 841static void 842_base_mask_interrupts(struct MPT2SAS_ADAPTER *ioc) 843{ 844 u32 him_register; 845 846 ioc->mask_interrupts = 1; 847 him_register = readl(&ioc->chip->HostInterruptMask); 848 him_register |= MPI2_HIM_DIM + MPI2_HIM_RIM + MPI2_HIM_RESET_IRQ_MASK; 849 writel(him_register, &ioc->chip->HostInterruptMask); 850 readl(&ioc->chip->HostInterruptMask); 851} 852 853/** 854 * _base_unmask_interrupts - enable interrupts 855 * @ioc: per adapter object 856 * 857 * Enabling only Reply Interrupts 858 * 859 * Return nothing. 860 */ 861static void 862_base_unmask_interrupts(struct MPT2SAS_ADAPTER *ioc) 863{ 864 u32 him_register; 865 866 him_register = readl(&ioc->chip->HostInterruptMask); 867 him_register &= ~MPI2_HIM_RIM; 868 writel(him_register, &ioc->chip->HostInterruptMask); 869 ioc->mask_interrupts = 0; 870} 871 872union reply_descriptor { 873 u64 word; 874 struct { 875 u32 low; 876 u32 high; 877 } u; 878}; 879 880/** 881 * _base_interrupt - MPT adapter (IOC) specific interrupt handler. 882 * @irq: irq number (not used) 883 * @bus_id: bus identifier cookie == pointer to MPT_ADAPTER structure 884 * @r: pt_regs pointer (not used) 885 * 886 * Return IRQ_HANDLE if processed, else IRQ_NONE. 887 */ 888static irqreturn_t 889_base_interrupt(int irq, void *bus_id) 890{ 891 struct adapter_reply_queue *reply_q = bus_id; 892 union reply_descriptor rd; 893 u32 completed_cmds; 894 u8 request_desript_type; 895 u16 smid; 896 u8 cb_idx; 897 u32 reply; 898 u8 msix_index = reply_q->msix_index; 899 struct MPT2SAS_ADAPTER *ioc = reply_q->ioc; 900 Mpi2ReplyDescriptorsUnion_t *rpf; 901 u8 rc; 902 903 if (ioc->mask_interrupts) 904 return IRQ_NONE; 905 906 if (!atomic_add_unless(&reply_q->busy, 1, 1)) 907 return IRQ_NONE; 908 909 rpf = &reply_q->reply_post_free[reply_q->reply_post_host_index]; 910 request_desript_type = rpf->Default.ReplyFlags 911 & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK; 912 if (request_desript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED) { 913 atomic_dec(&reply_q->busy); 914 return IRQ_NONE; 915 } 916 917 completed_cmds = 0; 918 cb_idx = 0xFF; 919 do { 920 rd.word = le64_to_cpu(rpf->Words); 921 if (rd.u.low == UINT_MAX || rd.u.high == UINT_MAX) 922 goto out; 923 reply = 0; 924 smid = le16_to_cpu(rpf->Default.DescriptorTypeDependent1); 925 if (request_desript_type == 926 MPI2_RPY_DESCRIPT_FLAGS_ADDRESS_REPLY) { 927 reply = le32_to_cpu 928 (rpf->AddressReply.ReplyFrameAddress); 929 if (reply > ioc->reply_dma_max_address || 930 reply < ioc->reply_dma_min_address) 931 reply = 0; 932 } else if (request_desript_type == 933 MPI2_RPY_DESCRIPT_FLAGS_TARGET_COMMAND_BUFFER) 934 goto next; 935 else if (request_desript_type == 936 MPI2_RPY_DESCRIPT_FLAGS_TARGETASSIST_SUCCESS) 937 goto next; 938 if (smid) { 939 cb_idx = _base_get_cb_idx(ioc, smid); 940 if ((likely(cb_idx < MPT_MAX_CALLBACKS)) 941 && (likely(mpt_callbacks[cb_idx] != NULL))) { 942 rc = mpt_callbacks[cb_idx](ioc, smid, 943 msix_index, reply); 944 if (reply) 945 _base_display_reply_info(ioc, smid, 946 msix_index, reply); 947 if (rc) 948 mpt2sas_base_free_smid(ioc, smid); 949 } 950 } 951 if (!smid) 952 _base_async_event(ioc, msix_index, reply); 953 954 /* reply free queue handling */ 955 if (reply) { 956 ioc->reply_free_host_index = 957 (ioc->reply_free_host_index == 958 (ioc->reply_free_queue_depth - 1)) ? 959 0 : ioc->reply_free_host_index + 1; 960 ioc->reply_free[ioc->reply_free_host_index] = 961 cpu_to_le32(reply); 962 wmb(); 963 writel(ioc->reply_free_host_index, 964 &ioc->chip->ReplyFreeHostIndex); 965 } 966 967 next: 968 969 rpf->Words = cpu_to_le64(ULLONG_MAX); 970 reply_q->reply_post_host_index = 971 (reply_q->reply_post_host_index == 972 (ioc->reply_post_queue_depth - 1)) ? 0 : 973 reply_q->reply_post_host_index + 1; 974 request_desript_type = 975 reply_q->reply_post_free[reply_q->reply_post_host_index]. 976 Default.ReplyFlags & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK; 977 completed_cmds++; 978 if (request_desript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED) 979 goto out; 980 if (!reply_q->reply_post_host_index) 981 rpf = reply_q->reply_post_free; 982 else 983 rpf++; 984 } while (1); 985 986 out: 987 988 if (!completed_cmds) { 989 atomic_dec(&reply_q->busy); 990 return IRQ_NONE; 991 } 992 wmb(); 993 if (ioc->is_warpdrive) { 994 writel(reply_q->reply_post_host_index, 995 ioc->reply_post_host_index[msix_index]); 996 atomic_dec(&reply_q->busy); 997 return IRQ_HANDLED; 998 } 999 writel(reply_q->reply_post_host_index | (msix_index << 1000 MPI2_RPHI_MSIX_INDEX_SHIFT), &ioc->chip->ReplyPostHostIndex); 1001 atomic_dec(&reply_q->busy); 1002 return IRQ_HANDLED; 1003} 1004 1005/** 1006 * _base_is_controller_msix_enabled - is controller support muli-reply queues 1007 * @ioc: per adapter object 1008 * 1009 */ 1010static inline int 1011_base_is_controller_msix_enabled(struct MPT2SAS_ADAPTER *ioc) 1012{ 1013 return (ioc->facts.IOCCapabilities & 1014 MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX) && ioc->msix_enable; 1015} 1016 1017/** 1018 * mpt2sas_base_flush_reply_queues - flushing the MSIX reply queues 1019 * @ioc: per adapter object 1020 * Context: ISR conext 1021 * 1022 * Called when a Task Management request has completed. We want 1023 * to flush the other reply queues so all the outstanding IO has been 1024 * completed back to OS before we process the TM completetion. 1025 * 1026 * Return nothing. 1027 */ 1028void 1029mpt2sas_base_flush_reply_queues(struct MPT2SAS_ADAPTER *ioc) 1030{ 1031 struct adapter_reply_queue *reply_q; 1032 1033 /* If MSIX capability is turned off 1034 * then multi-queues are not enabled 1035 */ 1036 if (!_base_is_controller_msix_enabled(ioc)) 1037 return; 1038 1039 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) { 1040 if (ioc->shost_recovery) 1041 return; 1042 /* TMs are on msix_index == 0 */ 1043 if (reply_q->msix_index == 0) 1044 continue; 1045 _base_interrupt(reply_q->vector, (void *)reply_q); 1046 } 1047} 1048 1049/** 1050 * mpt2sas_base_release_callback_handler - clear interrupt callback handler 1051 * @cb_idx: callback index 1052 * 1053 * Return nothing. 1054 */ 1055void 1056mpt2sas_base_release_callback_handler(u8 cb_idx) 1057{ 1058 mpt_callbacks[cb_idx] = NULL; 1059} 1060 1061/** 1062 * mpt2sas_base_register_callback_handler - obtain index for the interrupt callback handler 1063 * @cb_func: callback function 1064 * 1065 * Returns cb_func. 1066 */ 1067u8 1068mpt2sas_base_register_callback_handler(MPT_CALLBACK cb_func) 1069{ 1070 u8 cb_idx; 1071 1072 for (cb_idx = MPT_MAX_CALLBACKS-1; cb_idx; cb_idx--) 1073 if (mpt_callbacks[cb_idx] == NULL) 1074 break; 1075 1076 mpt_callbacks[cb_idx] = cb_func; 1077 return cb_idx; 1078} 1079 1080/** 1081 * mpt2sas_base_initialize_callback_handler - initialize the interrupt callback handler 1082 * 1083 * Return nothing. 1084 */ 1085void 1086mpt2sas_base_initialize_callback_handler(void) 1087{ 1088 u8 cb_idx; 1089 1090 for (cb_idx = 0; cb_idx < MPT_MAX_CALLBACKS; cb_idx++) 1091 mpt2sas_base_release_callback_handler(cb_idx); 1092} 1093 1094/** 1095 * mpt2sas_base_build_zero_len_sge - build zero length sg entry 1096 * @ioc: per adapter object 1097 * @paddr: virtual address for SGE 1098 * 1099 * Create a zero length scatter gather entry to insure the IOCs hardware has 1100 * something to use if the target device goes brain dead and tries 1101 * to send data even when none is asked for. 1102 * 1103 * Return nothing. 1104 */ 1105void 1106mpt2sas_base_build_zero_len_sge(struct MPT2SAS_ADAPTER *ioc, void *paddr) 1107{ 1108 u32 flags_length = (u32)((MPI2_SGE_FLAGS_LAST_ELEMENT | 1109 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST | 1110 MPI2_SGE_FLAGS_SIMPLE_ELEMENT) << 1111 MPI2_SGE_FLAGS_SHIFT); 1112 ioc->base_add_sg_single(paddr, flags_length, -1); 1113} 1114 1115/** 1116 * _base_add_sg_single_32 - Place a simple 32 bit SGE at address pAddr. 1117 * @paddr: virtual address for SGE 1118 * @flags_length: SGE flags and data transfer length 1119 * @dma_addr: Physical address 1120 * 1121 * Return nothing. 1122 */ 1123static void 1124_base_add_sg_single_32(void *paddr, u32 flags_length, dma_addr_t dma_addr) 1125{ 1126 Mpi2SGESimple32_t *sgel = paddr; 1127 1128 flags_length |= (MPI2_SGE_FLAGS_32_BIT_ADDRESSING | 1129 MPI2_SGE_FLAGS_SYSTEM_ADDRESS) << MPI2_SGE_FLAGS_SHIFT; 1130 sgel->FlagsLength = cpu_to_le32(flags_length); 1131 sgel->Address = cpu_to_le32(dma_addr); 1132} 1133 1134 1135/** 1136 * _base_add_sg_single_64 - Place a simple 64 bit SGE at address pAddr. 1137 * @paddr: virtual address for SGE 1138 * @flags_length: SGE flags and data transfer length 1139 * @dma_addr: Physical address 1140 * 1141 * Return nothing. 1142 */ 1143static void 1144_base_add_sg_single_64(void *paddr, u32 flags_length, dma_addr_t dma_addr) 1145{ 1146 Mpi2SGESimple64_t *sgel = paddr; 1147 1148 flags_length |= (MPI2_SGE_FLAGS_64_BIT_ADDRESSING | 1149 MPI2_SGE_FLAGS_SYSTEM_ADDRESS) << MPI2_SGE_FLAGS_SHIFT; 1150 sgel->FlagsLength = cpu_to_le32(flags_length); 1151 sgel->Address = cpu_to_le64(dma_addr); 1152} 1153 1154#define convert_to_kb(x) ((x) << (PAGE_SHIFT - 10)) 1155 1156/** 1157 * _base_config_dma_addressing - set dma addressing 1158 * @ioc: per adapter object 1159 * @pdev: PCI device struct 1160 * 1161 * Returns 0 for success, non-zero for failure. 1162 */ 1163static int 1164_base_config_dma_addressing(struct MPT2SAS_ADAPTER *ioc, struct pci_dev *pdev) 1165{ 1166 struct sysinfo s; 1167 char *desc = NULL; 1168 1169 if (sizeof(dma_addr_t) > 4) { 1170 const uint64_t required_mask = 1171 dma_get_required_mask(&pdev->dev); 1172 if ((required_mask > DMA_BIT_MASK(32)) && !pci_set_dma_mask(pdev, 1173 DMA_BIT_MASK(64)) && !pci_set_consistent_dma_mask(pdev, 1174 DMA_BIT_MASK(64))) { 1175 ioc->base_add_sg_single = &_base_add_sg_single_64; 1176 ioc->sge_size = sizeof(Mpi2SGESimple64_t); 1177 desc = "64"; 1178 goto out; 1179 } 1180 } 1181 1182 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) 1183 && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) { 1184 ioc->base_add_sg_single = &_base_add_sg_single_32; 1185 ioc->sge_size = sizeof(Mpi2SGESimple32_t); 1186 desc = "32"; 1187 } else 1188 return -ENODEV; 1189 1190 out: 1191 si_meminfo(&s); 1192 printk(MPT2SAS_INFO_FMT "%s BIT PCI BUS DMA ADDRESSING SUPPORTED, " 1193 "total mem (%ld kB)\n", ioc->name, desc, convert_to_kb(s.totalram)); 1194 1195 return 0; 1196} 1197 1198/** 1199 * _base_check_enable_msix - checks MSIX capabable. 1200 * @ioc: per adapter object 1201 * 1202 * Check to see if card is capable of MSIX, and set number 1203 * of available msix vectors 1204 */ 1205static int 1206_base_check_enable_msix(struct MPT2SAS_ADAPTER *ioc) 1207{ 1208 int base; 1209 u16 message_control; 1210 1211 1212 base = pci_find_capability(ioc->pdev, PCI_CAP_ID_MSIX); 1213 if (!base) { 1214 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "msix not " 1215 "supported\n", ioc->name)); 1216 return -EINVAL; 1217 } 1218 1219 /* get msix vector count */ 1220 /* NUMA_IO not supported for older controllers */ 1221 if (ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2004 || 1222 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2008 || 1223 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2108_1 || 1224 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2108_2 || 1225 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2108_3 || 1226 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2116_1 || 1227 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2116_2) 1228 ioc->msix_vector_count = 1; 1229 else { 1230 pci_read_config_word(ioc->pdev, base + 2, &message_control); 1231 ioc->msix_vector_count = (message_control & 0x3FF) + 1; 1232 } 1233 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "msix is supported, " 1234 "vector_count(%d)\n", ioc->name, ioc->msix_vector_count)); 1235 1236 return 0; 1237} 1238 1239/** 1240 * _base_free_irq - free irq 1241 * @ioc: per adapter object 1242 * 1243 * Freeing respective reply_queue from the list. 1244 */ 1245static void 1246_base_free_irq(struct MPT2SAS_ADAPTER *ioc) 1247{ 1248 struct adapter_reply_queue *reply_q, *next; 1249 1250 if (list_empty(&ioc->reply_queue_list)) 1251 return; 1252 1253 list_for_each_entry_safe(reply_q, next, &ioc->reply_queue_list, list) { 1254 list_del(&reply_q->list); 1255 synchronize_irq(reply_q->vector); 1256 free_irq(reply_q->vector, reply_q); 1257 kfree(reply_q); 1258 } 1259} 1260 1261/** 1262 * _base_request_irq - request irq 1263 * @ioc: per adapter object 1264 * @index: msix index into vector table 1265 * @vector: irq vector 1266 * 1267 * Inserting respective reply_queue into the list. 1268 */ 1269static int 1270_base_request_irq(struct MPT2SAS_ADAPTER *ioc, u8 index, u32 vector) 1271{ 1272 struct adapter_reply_queue *reply_q; 1273 int r; 1274 1275 reply_q = kzalloc(sizeof(struct adapter_reply_queue), GFP_KERNEL); 1276 if (!reply_q) { 1277 printk(MPT2SAS_ERR_FMT "unable to allocate memory %d!\n", 1278 ioc->name, (int)sizeof(struct adapter_reply_queue)); 1279 return -ENOMEM; 1280 } 1281 reply_q->ioc = ioc; 1282 reply_q->msix_index = index; 1283 reply_q->vector = vector; 1284 atomic_set(&reply_q->busy, 0); 1285 if (ioc->msix_enable) 1286 snprintf(reply_q->name, MPT_NAME_LENGTH, "%s%d-msix%d", 1287 MPT2SAS_DRIVER_NAME, ioc->id, index); 1288 else 1289 snprintf(reply_q->name, MPT_NAME_LENGTH, "%s%d", 1290 MPT2SAS_DRIVER_NAME, ioc->id); 1291 r = request_irq(vector, _base_interrupt, IRQF_SHARED, reply_q->name, 1292 reply_q); 1293 if (r) { 1294 printk(MPT2SAS_ERR_FMT "unable to allocate interrupt %d!\n", 1295 reply_q->name, vector); 1296 kfree(reply_q); 1297 return -EBUSY; 1298 } 1299 1300 INIT_LIST_HEAD(&reply_q->list); 1301 list_add_tail(&reply_q->list, &ioc->reply_queue_list); 1302 return 0; 1303} 1304 1305/** 1306 * _base_assign_reply_queues - assigning msix index for each cpu 1307 * @ioc: per adapter object 1308 * 1309 * The enduser would need to set the affinity via /proc/irq/#/smp_affinity 1310 * 1311 * It would nice if we could call irq_set_affinity, however it is not 1312 * an exported symbol 1313 */ 1314static void 1315_base_assign_reply_queues(struct MPT2SAS_ADAPTER *ioc) 1316{ 1317 struct adapter_reply_queue *reply_q; 1318 int cpu_id; 1319 int cpu_grouping, loop, grouping, grouping_mod; 1320 1321 if (!_base_is_controller_msix_enabled(ioc)) 1322 return; 1323 1324 memset(ioc->cpu_msix_table, 0, ioc->cpu_msix_table_sz); 1325 /* when there are more cpus than available msix vectors, 1326 * then group cpus togeather on same irq 1327 */ 1328 if (ioc->cpu_count > ioc->msix_vector_count) { 1329 grouping = ioc->cpu_count / ioc->msix_vector_count; 1330 grouping_mod = ioc->cpu_count % ioc->msix_vector_count; 1331 if (grouping < 2 || (grouping == 2 && !grouping_mod)) 1332 cpu_grouping = 2; 1333 else if (grouping < 4 || (grouping == 4 && !grouping_mod)) 1334 cpu_grouping = 4; 1335 else if (grouping < 8 || (grouping == 8 && !grouping_mod)) 1336 cpu_grouping = 8; 1337 else 1338 cpu_grouping = 16; 1339 } else 1340 cpu_grouping = 0; 1341 1342 loop = 0; 1343 reply_q = list_entry(ioc->reply_queue_list.next, 1344 struct adapter_reply_queue, list); 1345 for_each_online_cpu(cpu_id) { 1346 if (!cpu_grouping) { 1347 ioc->cpu_msix_table[cpu_id] = reply_q->msix_index; 1348 reply_q = list_entry(reply_q->list.next, 1349 struct adapter_reply_queue, list); 1350 } else { 1351 if (loop < cpu_grouping) { 1352 ioc->cpu_msix_table[cpu_id] = 1353 reply_q->msix_index; 1354 loop++; 1355 } else { 1356 reply_q = list_entry(reply_q->list.next, 1357 struct adapter_reply_queue, list); 1358 ioc->cpu_msix_table[cpu_id] = 1359 reply_q->msix_index; 1360 loop = 1; 1361 } 1362 } 1363 } 1364} 1365 1366/** 1367 * _base_disable_msix - disables msix 1368 * @ioc: per adapter object 1369 * 1370 */ 1371static void 1372_base_disable_msix(struct MPT2SAS_ADAPTER *ioc) 1373{ 1374 if (ioc->msix_enable) { 1375 pci_disable_msix(ioc->pdev); 1376 ioc->msix_enable = 0; 1377 } 1378} 1379 1380/** 1381 * _base_enable_msix - enables msix, failback to io_apic 1382 * @ioc: per adapter object 1383 * 1384 */ 1385static int 1386_base_enable_msix(struct MPT2SAS_ADAPTER *ioc) 1387{ 1388 struct msix_entry *entries, *a; 1389 int r; 1390 int i; 1391 u8 try_msix = 0; 1392 1393 INIT_LIST_HEAD(&ioc->reply_queue_list); 1394 1395 if (msix_disable == -1 || msix_disable == 0) 1396 try_msix = 1; 1397 1398 if (!try_msix) 1399 goto try_ioapic; 1400 1401 if (_base_check_enable_msix(ioc) != 0) 1402 goto try_ioapic; 1403 1404 ioc->reply_queue_count = min_t(int, ioc->cpu_count, 1405 ioc->msix_vector_count); 1406 1407 entries = kcalloc(ioc->reply_queue_count, sizeof(struct msix_entry), 1408 GFP_KERNEL); 1409 if (!entries) { 1410 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "kcalloc " 1411 "failed @ at %s:%d/%s() !!!\n", ioc->name, __FILE__, 1412 __LINE__, __func__)); 1413 goto try_ioapic; 1414 } 1415 1416 for (i = 0, a = entries; i < ioc->reply_queue_count; i++, a++) 1417 a->entry = i; 1418 1419 r = pci_enable_msix(ioc->pdev, entries, ioc->reply_queue_count); 1420 if (r) { 1421 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "pci_enable_msix " 1422 "failed (r=%d) !!!\n", ioc->name, r)); 1423 kfree(entries); 1424 goto try_ioapic; 1425 } 1426 1427 ioc->msix_enable = 1; 1428 for (i = 0, a = entries; i < ioc->reply_queue_count; i++, a++) { 1429 r = _base_request_irq(ioc, i, a->vector); 1430 if (r) { 1431 _base_free_irq(ioc); 1432 _base_disable_msix(ioc); 1433 kfree(entries); 1434 goto try_ioapic; 1435 } 1436 } 1437 1438 kfree(entries); 1439 return 0; 1440 1441/* failback to io_apic interrupt routing */ 1442 try_ioapic: 1443 1444 r = _base_request_irq(ioc, 0, ioc->pdev->irq); 1445 1446 return r; 1447} 1448 1449/** 1450 * mpt2sas_base_map_resources - map in controller resources (io/irq/memap) 1451 * @ioc: per adapter object 1452 * 1453 * Returns 0 for success, non-zero for failure. 1454 */ 1455int 1456mpt2sas_base_map_resources(struct MPT2SAS_ADAPTER *ioc) 1457{ 1458 struct pci_dev *pdev = ioc->pdev; 1459 u32 memap_sz; 1460 u32 pio_sz; 1461 int i, r = 0; 1462 u64 pio_chip = 0; 1463 u64 chip_phys = 0; 1464 struct adapter_reply_queue *reply_q; 1465 1466 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", 1467 ioc->name, __func__)); 1468 1469 ioc->bars = pci_select_bars(pdev, IORESOURCE_MEM); 1470 if (pci_enable_device_mem(pdev)) { 1471 printk(MPT2SAS_WARN_FMT "pci_enable_device_mem: " 1472 "failed\n", ioc->name); 1473 return -ENODEV; 1474 } 1475 1476 1477 if (pci_request_selected_regions(pdev, ioc->bars, 1478 MPT2SAS_DRIVER_NAME)) { 1479 printk(MPT2SAS_WARN_FMT "pci_request_selected_regions: " 1480 "failed\n", ioc->name); 1481 r = -ENODEV; 1482 goto out_fail; 1483 } 1484 1485 /* AER (Advanced Error Reporting) hooks */ 1486 pci_enable_pcie_error_reporting(pdev); 1487 1488 pci_set_master(pdev); 1489 1490 if (_base_config_dma_addressing(ioc, pdev) != 0) { 1491 printk(MPT2SAS_WARN_FMT "no suitable DMA mask for %s\n", 1492 ioc->name, pci_name(pdev)); 1493 r = -ENODEV; 1494 goto out_fail; 1495 } 1496 1497 for (i = 0, memap_sz = 0, pio_sz = 0 ; i < DEVICE_COUNT_RESOURCE; i++) { 1498 if (pci_resource_flags(pdev, i) & IORESOURCE_IO) { 1499 if (pio_sz) 1500 continue; 1501 pio_chip = (u64)pci_resource_start(pdev, i); 1502 pio_sz = pci_resource_len(pdev, i); 1503 } else { 1504 if (memap_sz) 1505 continue; 1506 /* verify memory resource is valid before using */ 1507 if (pci_resource_flags(pdev, i) & IORESOURCE_MEM) { 1508 ioc->chip_phys = pci_resource_start(pdev, i); 1509 chip_phys = (u64)ioc->chip_phys; 1510 memap_sz = pci_resource_len(pdev, i); 1511 ioc->chip = ioremap(ioc->chip_phys, memap_sz); 1512 if (ioc->chip == NULL) { 1513 printk(MPT2SAS_ERR_FMT "unable to map " 1514 "adapter memory!\n", ioc->name); 1515 r = -EINVAL; 1516 goto out_fail; 1517 } 1518 } 1519 } 1520 } 1521 1522 _base_mask_interrupts(ioc); 1523 r = _base_enable_msix(ioc); 1524 if (r) 1525 goto out_fail; 1526 1527 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) 1528 printk(MPT2SAS_INFO_FMT "%s: IRQ %d\n", 1529 reply_q->name, ((ioc->msix_enable) ? "PCI-MSI-X enabled" : 1530 "IO-APIC enabled"), reply_q->vector); 1531 1532 printk(MPT2SAS_INFO_FMT "iomem(0x%016llx), mapped(0x%p), size(%d)\n", 1533 ioc->name, (unsigned long long)chip_phys, ioc->chip, memap_sz); 1534 printk(MPT2SAS_INFO_FMT "ioport(0x%016llx), size(%d)\n", 1535 ioc->name, (unsigned long long)pio_chip, pio_sz); 1536 1537 /* Save PCI configuration state for recovery from PCI AER/EEH errors */ 1538 pci_save_state(pdev); 1539 1540 return 0; 1541 1542 out_fail: 1543 if (ioc->chip_phys) 1544 iounmap(ioc->chip); 1545 ioc->chip_phys = 0; 1546 pci_release_selected_regions(ioc->pdev, ioc->bars); 1547 pci_disable_pcie_error_reporting(pdev); 1548 pci_disable_device(pdev); 1549 return r; 1550} 1551 1552/** 1553 * mpt2sas_base_get_msg_frame - obtain request mf pointer 1554 * @ioc: per adapter object 1555 * @smid: system request message index(smid zero is invalid) 1556 * 1557 * Returns virt pointer to message frame. 1558 */ 1559void * 1560mpt2sas_base_get_msg_frame(struct MPT2SAS_ADAPTER *ioc, u16 smid) 1561{ 1562 return (void *)(ioc->request + (smid * ioc->request_sz)); 1563} 1564 1565/** 1566 * mpt2sas_base_get_sense_buffer - obtain a sense buffer assigned to a mf request 1567 * @ioc: per adapter object 1568 * @smid: system request message index 1569 * 1570 * Returns virt pointer to sense buffer. 1571 */ 1572void * 1573mpt2sas_base_get_sense_buffer(struct MPT2SAS_ADAPTER *ioc, u16 smid) 1574{ 1575 return (void *)(ioc->sense + ((smid - 1) * SCSI_SENSE_BUFFERSIZE)); 1576} 1577 1578/** 1579 * mpt2sas_base_get_sense_buffer_dma - obtain a sense buffer assigned to a mf request 1580 * @ioc: per adapter object 1581 * @smid: system request message index 1582 * 1583 * Returns phys pointer to the low 32bit address of the sense buffer. 1584 */ 1585__le32 1586mpt2sas_base_get_sense_buffer_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid) 1587{ 1588 return cpu_to_le32(ioc->sense_dma + 1589 ((smid - 1) * SCSI_SENSE_BUFFERSIZE)); 1590} 1591 1592/** 1593 * mpt2sas_base_get_reply_virt_addr - obtain reply frames virt address 1594 * @ioc: per adapter object 1595 * @phys_addr: lower 32 physical addr of the reply 1596 * 1597 * Converts 32bit lower physical addr into a virt address. 1598 */ 1599void * 1600mpt2sas_base_get_reply_virt_addr(struct MPT2SAS_ADAPTER *ioc, u32 phys_addr) 1601{ 1602 if (!phys_addr) 1603 return NULL; 1604 return ioc->reply + (phys_addr - (u32)ioc->reply_dma); 1605} 1606 1607/** 1608 * mpt2sas_base_get_smid - obtain a free smid from internal queue 1609 * @ioc: per adapter object 1610 * @cb_idx: callback index 1611 * 1612 * Returns smid (zero is invalid) 1613 */ 1614u16 1615mpt2sas_base_get_smid(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx) 1616{ 1617 unsigned long flags; 1618 struct request_tracker *request; 1619 u16 smid; 1620 1621 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 1622 if (list_empty(&ioc->internal_free_list)) { 1623 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1624 printk(MPT2SAS_ERR_FMT "%s: smid not available\n", 1625 ioc->name, __func__); 1626 return 0; 1627 } 1628 1629 request = list_entry(ioc->internal_free_list.next, 1630 struct request_tracker, tracker_list); 1631 request->cb_idx = cb_idx; 1632 smid = request->smid; 1633 list_del(&request->tracker_list); 1634 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1635 return smid; 1636} 1637 1638/** 1639 * mpt2sas_base_get_smid_scsiio - obtain a free smid from scsiio queue 1640 * @ioc: per adapter object 1641 * @cb_idx: callback index 1642 * @scmd: pointer to scsi command object 1643 * 1644 * Returns smid (zero is invalid) 1645 */ 1646u16 1647mpt2sas_base_get_smid_scsiio(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx, 1648 struct scsi_cmnd *scmd) 1649{ 1650 unsigned long flags; 1651 struct scsiio_tracker *request; 1652 u16 smid; 1653 1654 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 1655 if (list_empty(&ioc->free_list)) { 1656 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1657 printk(MPT2SAS_ERR_FMT "%s: smid not available\n", 1658 ioc->name, __func__); 1659 return 0; 1660 } 1661 1662 request = list_entry(ioc->free_list.next, 1663 struct scsiio_tracker, tracker_list); 1664 request->scmd = scmd; 1665 request->cb_idx = cb_idx; 1666 smid = request->smid; 1667 list_del(&request->tracker_list); 1668 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1669 return smid; 1670} 1671 1672/** 1673 * mpt2sas_base_get_smid_hpr - obtain a free smid from hi-priority queue 1674 * @ioc: per adapter object 1675 * @cb_idx: callback index 1676 * 1677 * Returns smid (zero is invalid) 1678 */ 1679u16 1680mpt2sas_base_get_smid_hpr(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx) 1681{ 1682 unsigned long flags; 1683 struct request_tracker *request; 1684 u16 smid; 1685 1686 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 1687 if (list_empty(&ioc->hpr_free_list)) { 1688 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1689 return 0; 1690 } 1691 1692 request = list_entry(ioc->hpr_free_list.next, 1693 struct request_tracker, tracker_list); 1694 request->cb_idx = cb_idx; 1695 smid = request->smid; 1696 list_del(&request->tracker_list); 1697 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1698 return smid; 1699} 1700 1701 1702/** 1703 * mpt2sas_base_free_smid - put smid back on free_list 1704 * @ioc: per adapter object 1705 * @smid: system request message index 1706 * 1707 * Return nothing. 1708 */ 1709void 1710mpt2sas_base_free_smid(struct MPT2SAS_ADAPTER *ioc, u16 smid) 1711{ 1712 unsigned long flags; 1713 int i; 1714 struct chain_tracker *chain_req, *next; 1715 1716 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 1717 if (smid < ioc->hi_priority_smid) { 1718 /* scsiio queue */ 1719 i = smid - 1; 1720 if (!list_empty(&ioc->scsi_lookup[i].chain_list)) { 1721 list_for_each_entry_safe(chain_req, next, 1722 &ioc->scsi_lookup[i].chain_list, tracker_list) { 1723 list_del_init(&chain_req->tracker_list); 1724 list_add_tail(&chain_req->tracker_list, 1725 &ioc->free_chain_list); 1726 } 1727 } 1728 ioc->scsi_lookup[i].cb_idx = 0xFF; 1729 ioc->scsi_lookup[i].scmd = NULL; 1730 ioc->scsi_lookup[i].direct_io = 0; 1731 list_add_tail(&ioc->scsi_lookup[i].tracker_list, 1732 &ioc->free_list); 1733 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1734 1735 /* 1736 * See _wait_for_commands_to_complete() call with regards 1737 * to this code. 1738 */ 1739 if (ioc->shost_recovery && ioc->pending_io_count) { 1740 if (ioc->pending_io_count == 1) 1741 wake_up(&ioc->reset_wq); 1742 ioc->pending_io_count--; 1743 } 1744 return; 1745 } else if (smid < ioc->internal_smid) { 1746 /* hi-priority */ 1747 i = smid - ioc->hi_priority_smid; 1748 ioc->hpr_lookup[i].cb_idx = 0xFF; 1749 list_add_tail(&ioc->hpr_lookup[i].tracker_list, 1750 &ioc->hpr_free_list); 1751 } else if (smid <= ioc->hba_queue_depth) { 1752 /* internal queue */ 1753 i = smid - ioc->internal_smid; 1754 ioc->internal_lookup[i].cb_idx = 0xFF; 1755 list_add_tail(&ioc->internal_lookup[i].tracker_list, 1756 &ioc->internal_free_list); 1757 } 1758 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1759} 1760 1761/** 1762 * _base_writeq - 64 bit write to MMIO 1763 * @ioc: per adapter object 1764 * @b: data payload 1765 * @addr: address in MMIO space 1766 * @writeq_lock: spin lock 1767 * 1768 * Glue for handling an atomic 64 bit word to MMIO. This special handling takes 1769 * care of 32 bit environment where its not quarenteed to send the entire word 1770 * in one transfer. 1771 */ 1772#ifndef writeq 1773static inline void _base_writeq(__u64 b, volatile void __iomem *addr, 1774 spinlock_t *writeq_lock) 1775{ 1776 unsigned long flags; 1777 __u64 data_out = cpu_to_le64(b); 1778 1779 spin_lock_irqsave(writeq_lock, flags); 1780 writel((u32)(data_out), addr); 1781 writel((u32)(data_out >> 32), (addr + 4)); 1782 spin_unlock_irqrestore(writeq_lock, flags); 1783} 1784#else 1785static inline void _base_writeq(__u64 b, volatile void __iomem *addr, 1786 spinlock_t *writeq_lock) 1787{ 1788 writeq(cpu_to_le64(b), addr); 1789} 1790#endif 1791 1792static inline u8 1793_base_get_msix_index(struct MPT2SAS_ADAPTER *ioc) 1794{ 1795 return ioc->cpu_msix_table[raw_smp_processor_id()]; 1796} 1797 1798/** 1799 * mpt2sas_base_put_smid_scsi_io - send SCSI_IO request to firmware 1800 * @ioc: per adapter object 1801 * @smid: system request message index 1802 * @handle: device handle 1803 * 1804 * Return nothing. 1805 */ 1806void 1807mpt2sas_base_put_smid_scsi_io(struct MPT2SAS_ADAPTER *ioc, u16 smid, u16 handle) 1808{ 1809 Mpi2RequestDescriptorUnion_t descriptor; 1810 u64 *request = (u64 *)&descriptor; 1811 1812 1813 descriptor.SCSIIO.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO; 1814 descriptor.SCSIIO.MSIxIndex = _base_get_msix_index(ioc); 1815 descriptor.SCSIIO.SMID = cpu_to_le16(smid); 1816 descriptor.SCSIIO.DevHandle = cpu_to_le16(handle); 1817 descriptor.SCSIIO.LMID = 0; 1818 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow, 1819 &ioc->scsi_lookup_lock); 1820} 1821 1822 1823/** 1824 * mpt2sas_base_put_smid_hi_priority - send Task Management request to firmware 1825 * @ioc: per adapter object 1826 * @smid: system request message index 1827 * 1828 * Return nothing. 1829 */ 1830void 1831mpt2sas_base_put_smid_hi_priority(struct MPT2SAS_ADAPTER *ioc, u16 smid) 1832{ 1833 Mpi2RequestDescriptorUnion_t descriptor; 1834 u64 *request = (u64 *)&descriptor; 1835 1836 descriptor.HighPriority.RequestFlags = 1837 MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY; 1838 descriptor.HighPriority.MSIxIndex = 0; 1839 descriptor.HighPriority.SMID = cpu_to_le16(smid); 1840 descriptor.HighPriority.LMID = 0; 1841 descriptor.HighPriority.Reserved1 = 0; 1842 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow, 1843 &ioc->scsi_lookup_lock); 1844} 1845 1846/** 1847 * mpt2sas_base_put_smid_default - Default, primarily used for config pages 1848 * @ioc: per adapter object 1849 * @smid: system request message index 1850 * 1851 * Return nothing. 1852 */ 1853void 1854mpt2sas_base_put_smid_default(struct MPT2SAS_ADAPTER *ioc, u16 smid) 1855{ 1856 Mpi2RequestDescriptorUnion_t descriptor; 1857 u64 *request = (u64 *)&descriptor; 1858 1859 descriptor.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE; 1860 descriptor.Default.MSIxIndex = _base_get_msix_index(ioc); 1861 descriptor.Default.SMID = cpu_to_le16(smid); 1862 descriptor.Default.LMID = 0; 1863 descriptor.Default.DescriptorTypeDependent = 0; 1864 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow, 1865 &ioc->scsi_lookup_lock); 1866} 1867 1868/** 1869 * mpt2sas_base_put_smid_target_assist - send Target Assist/Status to firmware 1870 * @ioc: per adapter object 1871 * @smid: system request message index 1872 * @io_index: value used to track the IO 1873 * 1874 * Return nothing. 1875 */ 1876void 1877mpt2sas_base_put_smid_target_assist(struct MPT2SAS_ADAPTER *ioc, u16 smid, 1878 u16 io_index) 1879{ 1880 Mpi2RequestDescriptorUnion_t descriptor; 1881 u64 *request = (u64 *)&descriptor; 1882 1883 descriptor.SCSITarget.RequestFlags = 1884 MPI2_REQ_DESCRIPT_FLAGS_SCSI_TARGET; 1885 descriptor.SCSITarget.MSIxIndex = _base_get_msix_index(ioc); 1886 descriptor.SCSITarget.SMID = cpu_to_le16(smid); 1887 descriptor.SCSITarget.LMID = 0; 1888 descriptor.SCSITarget.IoIndex = cpu_to_le16(io_index); 1889 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow, 1890 &ioc->scsi_lookup_lock); 1891} 1892 1893/** 1894 * _base_display_dell_branding - Disply branding string 1895 * @ioc: per adapter object 1896 * 1897 * Return nothing. 1898 */ 1899static void 1900_base_display_dell_branding(struct MPT2SAS_ADAPTER *ioc) 1901{ 1902 char dell_branding[MPT2SAS_DELL_BRANDING_SIZE]; 1903 1904 if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_DELL) 1905 return; 1906 1907 memset(dell_branding, 0, MPT2SAS_DELL_BRANDING_SIZE); 1908 switch (ioc->pdev->subsystem_device) { 1909 case MPT2SAS_DELL_6GBPS_SAS_HBA_SSDID: 1910 strncpy(dell_branding, MPT2SAS_DELL_6GBPS_SAS_HBA_BRANDING, 1911 MPT2SAS_DELL_BRANDING_SIZE - 1); 1912 break; 1913 case MPT2SAS_DELL_PERC_H200_ADAPTER_SSDID: 1914 strncpy(dell_branding, MPT2SAS_DELL_PERC_H200_ADAPTER_BRANDING, 1915 MPT2SAS_DELL_BRANDING_SIZE - 1); 1916 break; 1917 case MPT2SAS_DELL_PERC_H200_INTEGRATED_SSDID: 1918 strncpy(dell_branding, 1919 MPT2SAS_DELL_PERC_H200_INTEGRATED_BRANDING, 1920 MPT2SAS_DELL_BRANDING_SIZE - 1); 1921 break; 1922 case MPT2SAS_DELL_PERC_H200_MODULAR_SSDID: 1923 strncpy(dell_branding, 1924 MPT2SAS_DELL_PERC_H200_MODULAR_BRANDING, 1925 MPT2SAS_DELL_BRANDING_SIZE - 1); 1926 break; 1927 case MPT2SAS_DELL_PERC_H200_EMBEDDED_SSDID: 1928 strncpy(dell_branding, 1929 MPT2SAS_DELL_PERC_H200_EMBEDDED_BRANDING, 1930 MPT2SAS_DELL_BRANDING_SIZE - 1); 1931 break; 1932 case MPT2SAS_DELL_PERC_H200_SSDID: 1933 strncpy(dell_branding, MPT2SAS_DELL_PERC_H200_BRANDING, 1934 MPT2SAS_DELL_BRANDING_SIZE - 1); 1935 break; 1936 case MPT2SAS_DELL_6GBPS_SAS_SSDID: 1937 strncpy(dell_branding, MPT2SAS_DELL_6GBPS_SAS_BRANDING, 1938 MPT2SAS_DELL_BRANDING_SIZE - 1); 1939 break; 1940 default: 1941 sprintf(dell_branding, "0x%4X", ioc->pdev->subsystem_device); 1942 break; 1943 } 1944 1945 printk(MPT2SAS_INFO_FMT "%s: Vendor(0x%04X), Device(0x%04X)," 1946 " SSVID(0x%04X), SSDID(0x%04X)\n", ioc->name, dell_branding, 1947 ioc->pdev->vendor, ioc->pdev->device, ioc->pdev->subsystem_vendor, 1948 ioc->pdev->subsystem_device); 1949} 1950 1951/** 1952 * _base_display_intel_branding - Display branding string 1953 * @ioc: per adapter object 1954 * 1955 * Return nothing. 1956 */ 1957static void 1958_base_display_intel_branding(struct MPT2SAS_ADAPTER *ioc) 1959{ 1960 if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_INTEL) 1961 return; 1962 1963 switch (ioc->pdev->device) { 1964 case MPI2_MFGPAGE_DEVID_SAS2008: 1965 switch (ioc->pdev->subsystem_device) { 1966 case MPT2SAS_INTEL_RMS2LL080_SSDID: 1967 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 1968 MPT2SAS_INTEL_RMS2LL080_BRANDING); 1969 break; 1970 case MPT2SAS_INTEL_RMS2LL040_SSDID: 1971 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 1972 MPT2SAS_INTEL_RMS2LL040_BRANDING); 1973 break; 1974 case MPT2SAS_INTEL_RAMSDALE_SSDID: 1975 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 1976 MPT2SAS_INTEL_RAMSDALE_BRANDING); 1977 break; 1978 default: 1979 break; 1980 } 1981 case MPI2_MFGPAGE_DEVID_SAS2308_2: 1982 switch (ioc->pdev->subsystem_device) { 1983 case MPT2SAS_INTEL_RS25GB008_SSDID: 1984 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 1985 MPT2SAS_INTEL_RS25GB008_BRANDING); 1986 break; 1987 case MPT2SAS_INTEL_RMS25JB080_SSDID: 1988 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 1989 MPT2SAS_INTEL_RMS25JB080_BRANDING); 1990 break; 1991 case MPT2SAS_INTEL_RMS25JB040_SSDID: 1992 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 1993 MPT2SAS_INTEL_RMS25JB040_BRANDING); 1994 break; 1995 case MPT2SAS_INTEL_RMS25KB080_SSDID: 1996 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 1997 MPT2SAS_INTEL_RMS25KB080_BRANDING); 1998 break; 1999 case MPT2SAS_INTEL_RMS25KB040_SSDID: 2000 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2001 MPT2SAS_INTEL_RMS25KB040_BRANDING); 2002 break; 2003 default: 2004 break; 2005 } 2006 default: 2007 break; 2008 } 2009} 2010 2011/** 2012 * _base_display_hp_branding - Display branding string 2013 * @ioc: per adapter object 2014 * 2015 * Return nothing. 2016 */ 2017static void 2018_base_display_hp_branding(struct MPT2SAS_ADAPTER *ioc) 2019{ 2020 if (ioc->pdev->subsystem_vendor != MPT2SAS_HP_3PAR_SSVID) 2021 return; 2022 2023 switch (ioc->pdev->device) { 2024 case MPI2_MFGPAGE_DEVID_SAS2004: 2025 switch (ioc->pdev->subsystem_device) { 2026 case MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_SSDID: 2027 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2028 MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_BRANDING); 2029 break; 2030 default: 2031 break; 2032 } 2033 case MPI2_MFGPAGE_DEVID_SAS2308_2: 2034 switch (ioc->pdev->subsystem_device) { 2035 case MPT2SAS_HP_2_4_INTERNAL_SSDID: 2036 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2037 MPT2SAS_HP_2_4_INTERNAL_BRANDING); 2038 break; 2039 case MPT2SAS_HP_2_4_EXTERNAL_SSDID: 2040 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2041 MPT2SAS_HP_2_4_EXTERNAL_BRANDING); 2042 break; 2043 case MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_SSDID: 2044 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2045 MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_BRANDING); 2046 break; 2047 case MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_SSDID: 2048 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2049 MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_BRANDING); 2050 break; 2051 default: 2052 break; 2053 } 2054 default: 2055 break; 2056 } 2057} 2058 2059/** 2060 * _base_display_ioc_capabilities - Disply IOC's capabilities. 2061 * @ioc: per adapter object 2062 * 2063 * Return nothing. 2064 */ 2065static void 2066_base_display_ioc_capabilities(struct MPT2SAS_ADAPTER *ioc) 2067{ 2068 int i = 0; 2069 char desc[16]; 2070 u32 iounit_pg1_flags; 2071 u32 bios_version; 2072 2073 bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion); 2074 strncpy(desc, ioc->manu_pg0.ChipName, 16); 2075 printk(MPT2SAS_INFO_FMT "%s: FWVersion(%02d.%02d.%02d.%02d), " 2076 "ChipRevision(0x%02x), BiosVersion(%02d.%02d.%02d.%02d)\n", 2077 ioc->name, desc, 2078 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24, 2079 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16, 2080 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8, 2081 ioc->facts.FWVersion.Word & 0x000000FF, 2082 ioc->pdev->revision, 2083 (bios_version & 0xFF000000) >> 24, 2084 (bios_version & 0x00FF0000) >> 16, 2085 (bios_version & 0x0000FF00) >> 8, 2086 bios_version & 0x000000FF); 2087 2088 _base_display_dell_branding(ioc); 2089 _base_display_intel_branding(ioc); 2090 _base_display_hp_branding(ioc); 2091 2092 printk(MPT2SAS_INFO_FMT "Protocol=(", ioc->name); 2093 2094 if (ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR) { 2095 printk("Initiator"); 2096 i++; 2097 } 2098 2099 if (ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_TARGET) { 2100 printk("%sTarget", i ? "," : ""); 2101 i++; 2102 } 2103 2104 i = 0; 2105 printk("), "); 2106 printk("Capabilities=("); 2107 2108 if (!ioc->hide_ir_msg) { 2109 if (ioc->facts.IOCCapabilities & 2110 MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID) { 2111 printk("Raid"); 2112 i++; 2113 } 2114 } 2115 2116 if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR) { 2117 printk("%sTLR", i ? "," : ""); 2118 i++; 2119 } 2120 2121 if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_MULTICAST) { 2122 printk("%sMulticast", i ? "," : ""); 2123 i++; 2124 } 2125 2126 if (ioc->facts.IOCCapabilities & 2127 MPI2_IOCFACTS_CAPABILITY_BIDIRECTIONAL_TARGET) { 2128 printk("%sBIDI Target", i ? "," : ""); 2129 i++; 2130 } 2131 2132 if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_EEDP) { 2133 printk("%sEEDP", i ? "," : ""); 2134 i++; 2135 } 2136 2137 if (ioc->facts.IOCCapabilities & 2138 MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER) { 2139 printk("%sSnapshot Buffer", i ? "," : ""); 2140 i++; 2141 } 2142 2143 if (ioc->facts.IOCCapabilities & 2144 MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER) { 2145 printk("%sDiag Trace Buffer", i ? "," : ""); 2146 i++; 2147 } 2148 2149 if (ioc->facts.IOCCapabilities & 2150 MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER) { 2151 printk(KERN_INFO "%sDiag Extended Buffer", i ? "," : ""); 2152 i++; 2153 } 2154 2155 if (ioc->facts.IOCCapabilities & 2156 MPI2_IOCFACTS_CAPABILITY_TASK_SET_FULL_HANDLING) { 2157 printk("%sTask Set Full", i ? "," : ""); 2158 i++; 2159 } 2160 2161 iounit_pg1_flags = le32_to_cpu(ioc->iounit_pg1.Flags); 2162 if (!(iounit_pg1_flags & MPI2_IOUNITPAGE1_NATIVE_COMMAND_Q_DISABLE)) { 2163 printk("%sNCQ", i ? "," : ""); 2164 i++; 2165 } 2166 2167 printk(")\n"); 2168} 2169 2170/** 2171 * _base_update_missing_delay - change the missing delay timers 2172 * @ioc: per adapter object 2173 * @device_missing_delay: amount of time till device is reported missing 2174 * @io_missing_delay: interval IO is returned when there is a missing device 2175 * 2176 * Return nothing. 2177 * 2178 * Passed on the command line, this function will modify the device missing 2179 * delay, as well as the io missing delay. This should be called at driver 2180 * load time. 2181 */ 2182static void 2183_base_update_missing_delay(struct MPT2SAS_ADAPTER *ioc, 2184 u16 device_missing_delay, u8 io_missing_delay) 2185{ 2186 u16 dmd, dmd_new, dmd_orignal; 2187 u8 io_missing_delay_original; 2188 u16 sz; 2189 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL; 2190 Mpi2ConfigReply_t mpi_reply; 2191 u8 num_phys = 0; 2192 u16 ioc_status; 2193 2194 mpt2sas_config_get_number_hba_phys(ioc, &num_phys); 2195 if (!num_phys) 2196 return; 2197 2198 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (num_phys * 2199 sizeof(Mpi2SasIOUnit1PhyData_t)); 2200 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL); 2201 if (!sas_iounit_pg1) { 2202 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", 2203 ioc->name, __FILE__, __LINE__, __func__); 2204 goto out; 2205 } 2206 if ((mpt2sas_config_get_sas_iounit_pg1(ioc, &mpi_reply, 2207 sas_iounit_pg1, sz))) { 2208 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", 2209 ioc->name, __FILE__, __LINE__, __func__); 2210 goto out; 2211 } 2212 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 2213 MPI2_IOCSTATUS_MASK; 2214 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 2215 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", 2216 ioc->name, __FILE__, __LINE__, __func__); 2217 goto out; 2218 } 2219 2220 /* device missing delay */ 2221 dmd = sas_iounit_pg1->ReportDeviceMissingDelay; 2222 if (dmd & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16) 2223 dmd = (dmd & MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16; 2224 else 2225 dmd = dmd & MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK; 2226 dmd_orignal = dmd; 2227 if (device_missing_delay > 0x7F) { 2228 dmd = (device_missing_delay > 0x7F0) ? 0x7F0 : 2229 device_missing_delay; 2230 dmd = dmd / 16; 2231 dmd |= MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16; 2232 } else 2233 dmd = device_missing_delay; 2234 sas_iounit_pg1->ReportDeviceMissingDelay = dmd; 2235 2236 /* io missing delay */ 2237 io_missing_delay_original = sas_iounit_pg1->IODeviceMissingDelay; 2238 sas_iounit_pg1->IODeviceMissingDelay = io_missing_delay; 2239 2240 if (!mpt2sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1, 2241 sz)) { 2242 if (dmd & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16) 2243 dmd_new = (dmd & 2244 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16; 2245 else 2246 dmd_new = 2247 dmd & MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK; 2248 printk(MPT2SAS_INFO_FMT "device_missing_delay: old(%d), " 2249 "new(%d)\n", ioc->name, dmd_orignal, dmd_new); 2250 printk(MPT2SAS_INFO_FMT "ioc_missing_delay: old(%d), " 2251 "new(%d)\n", ioc->name, io_missing_delay_original, 2252 io_missing_delay); 2253 ioc->device_missing_delay = dmd_new; 2254 ioc->io_missing_delay = io_missing_delay; 2255 } 2256 2257out: 2258 kfree(sas_iounit_pg1); 2259} 2260 2261/** 2262 * _base_static_config_pages - static start of day config pages 2263 * @ioc: per adapter object 2264 * 2265 * Return nothing. 2266 */ 2267static void 2268_base_static_config_pages(struct MPT2SAS_ADAPTER *ioc) 2269{ 2270 Mpi2ConfigReply_t mpi_reply; 2271 u32 iounit_pg1_flags; 2272 2273 mpt2sas_config_get_manufacturing_pg0(ioc, &mpi_reply, &ioc->manu_pg0); 2274 if (ioc->ir_firmware) 2275 mpt2sas_config_get_manufacturing_pg10(ioc, &mpi_reply, 2276 &ioc->manu_pg10); 2277 mpt2sas_config_get_bios_pg2(ioc, &mpi_reply, &ioc->bios_pg2); 2278 mpt2sas_config_get_bios_pg3(ioc, &mpi_reply, &ioc->bios_pg3); 2279 mpt2sas_config_get_ioc_pg8(ioc, &mpi_reply, &ioc->ioc_pg8); 2280 mpt2sas_config_get_iounit_pg0(ioc, &mpi_reply, &ioc->iounit_pg0); 2281 mpt2sas_config_get_iounit_pg1(ioc, &mpi_reply, &ioc->iounit_pg1); 2282 _base_display_ioc_capabilities(ioc); 2283 2284 /* 2285 * Enable task_set_full handling in iounit_pg1 when the 2286 * facts capabilities indicate that its supported. 2287 */ 2288 iounit_pg1_flags = le32_to_cpu(ioc->iounit_pg1.Flags); 2289 if ((ioc->facts.IOCCapabilities & 2290 MPI2_IOCFACTS_CAPABILITY_TASK_SET_FULL_HANDLING)) 2291 iounit_pg1_flags &= 2292 ~MPI2_IOUNITPAGE1_DISABLE_TASK_SET_FULL_HANDLING; 2293 else 2294 iounit_pg1_flags |= 2295 MPI2_IOUNITPAGE1_DISABLE_TASK_SET_FULL_HANDLING; 2296 ioc->iounit_pg1.Flags = cpu_to_le32(iounit_pg1_flags); 2297 mpt2sas_config_set_iounit_pg1(ioc, &mpi_reply, &ioc->iounit_pg1); 2298 2299} 2300 2301/** 2302 * _base_release_memory_pools - release memory 2303 * @ioc: per adapter object 2304 * 2305 * Free memory allocated from _base_allocate_memory_pools. 2306 * 2307 * Return nothing. 2308 */ 2309static void 2310_base_release_memory_pools(struct MPT2SAS_ADAPTER *ioc) 2311{ 2312 int i; 2313 2314 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2315 __func__)); 2316 2317 if (ioc->request) { 2318 pci_free_consistent(ioc->pdev, ioc->request_dma_sz, 2319 ioc->request, ioc->request_dma); 2320 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "request_pool(0x%p)" 2321 ": free\n", ioc->name, ioc->request)); 2322 ioc->request = NULL; 2323 } 2324 2325 if (ioc->sense) { 2326 pci_pool_free(ioc->sense_dma_pool, ioc->sense, ioc->sense_dma); 2327 if (ioc->sense_dma_pool) 2328 pci_pool_destroy(ioc->sense_dma_pool); 2329 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "sense_pool(0x%p)" 2330 ": free\n", ioc->name, ioc->sense)); 2331 ioc->sense = NULL; 2332 } 2333 2334 if (ioc->reply) { 2335 pci_pool_free(ioc->reply_dma_pool, ioc->reply, ioc->reply_dma); 2336 if (ioc->reply_dma_pool) 2337 pci_pool_destroy(ioc->reply_dma_pool); 2338 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_pool(0x%p)" 2339 ": free\n", ioc->name, ioc->reply)); 2340 ioc->reply = NULL; 2341 } 2342 2343 if (ioc->reply_free) { 2344 pci_pool_free(ioc->reply_free_dma_pool, ioc->reply_free, 2345 ioc->reply_free_dma); 2346 if (ioc->reply_free_dma_pool) 2347 pci_pool_destroy(ioc->reply_free_dma_pool); 2348 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_free_pool" 2349 "(0x%p): free\n", ioc->name, ioc->reply_free)); 2350 ioc->reply_free = NULL; 2351 } 2352 2353 if (ioc->reply_post_free) { 2354 pci_pool_free(ioc->reply_post_free_dma_pool, 2355 ioc->reply_post_free, ioc->reply_post_free_dma); 2356 if (ioc->reply_post_free_dma_pool) 2357 pci_pool_destroy(ioc->reply_post_free_dma_pool); 2358 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT 2359 "reply_post_free_pool(0x%p): free\n", ioc->name, 2360 ioc->reply_post_free)); 2361 ioc->reply_post_free = NULL; 2362 } 2363 2364 if (ioc->config_page) { 2365 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT 2366 "config_page(0x%p): free\n", ioc->name, 2367 ioc->config_page)); 2368 pci_free_consistent(ioc->pdev, ioc->config_page_sz, 2369 ioc->config_page, ioc->config_page_dma); 2370 } 2371 2372 if (ioc->scsi_lookup) { 2373 free_pages((ulong)ioc->scsi_lookup, ioc->scsi_lookup_pages); 2374 ioc->scsi_lookup = NULL; 2375 } 2376 kfree(ioc->hpr_lookup); 2377 kfree(ioc->internal_lookup); 2378 if (ioc->chain_lookup) { 2379 for (i = 0; i < ioc->chain_depth; i++) { 2380 if (ioc->chain_lookup[i].chain_buffer) 2381 pci_pool_free(ioc->chain_dma_pool, 2382 ioc->chain_lookup[i].chain_buffer, 2383 ioc->chain_lookup[i].chain_buffer_dma); 2384 } 2385 if (ioc->chain_dma_pool) 2386 pci_pool_destroy(ioc->chain_dma_pool); 2387 free_pages((ulong)ioc->chain_lookup, ioc->chain_pages); 2388 ioc->chain_lookup = NULL; 2389 } 2390} 2391 2392 2393/** 2394 * _base_allocate_memory_pools - allocate start of day memory pools 2395 * @ioc: per adapter object 2396 * @sleep_flag: CAN_SLEEP or NO_SLEEP 2397 * 2398 * Returns 0 success, anything else error 2399 */ 2400static int 2401_base_allocate_memory_pools(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) 2402{ 2403 struct mpt2sas_facts *facts; 2404 u16 max_sge_elements; 2405 u16 chains_needed_per_io; 2406 u32 sz, total_sz, reply_post_free_sz; 2407 u32 retry_sz; 2408 u16 max_request_credit; 2409 int i; 2410 2411 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2412 __func__)); 2413 2414 retry_sz = 0; 2415 facts = &ioc->facts; 2416 2417 /* command line tunables for max sgl entries */ 2418 if (max_sgl_entries != -1) { 2419 ioc->shost->sg_tablesize = (max_sgl_entries < 2420 MPT2SAS_SG_DEPTH) ? max_sgl_entries : 2421 MPT2SAS_SG_DEPTH; 2422 } else { 2423 ioc->shost->sg_tablesize = MPT2SAS_SG_DEPTH; 2424 } 2425 2426 /* command line tunables for max controller queue depth */ 2427 if (max_queue_depth != -1 && max_queue_depth != 0) { 2428 max_request_credit = min_t(u16, max_queue_depth + 2429 ioc->hi_priority_depth + ioc->internal_depth, 2430 facts->RequestCredit); 2431 if (max_request_credit > MAX_HBA_QUEUE_DEPTH) 2432 max_request_credit = MAX_HBA_QUEUE_DEPTH; 2433 } else 2434 max_request_credit = min_t(u16, facts->RequestCredit, 2435 MAX_HBA_QUEUE_DEPTH); 2436 2437 ioc->hba_queue_depth = max_request_credit; 2438 ioc->hi_priority_depth = facts->HighPriorityCredit; 2439 ioc->internal_depth = ioc->hi_priority_depth + 5; 2440 2441 /* request frame size */ 2442 ioc->request_sz = facts->IOCRequestFrameSize * 4; 2443 2444 /* reply frame size */ 2445 ioc->reply_sz = facts->ReplyFrameSize * 4; 2446 2447 retry_allocation: 2448 total_sz = 0; 2449 /* calculate number of sg elements left over in the 1st frame */ 2450 max_sge_elements = ioc->request_sz - ((sizeof(Mpi2SCSIIORequest_t) - 2451 sizeof(Mpi2SGEIOUnion_t)) + ioc->sge_size); 2452 ioc->max_sges_in_main_message = max_sge_elements/ioc->sge_size; 2453 2454 /* now do the same for a chain buffer */ 2455 max_sge_elements = ioc->request_sz - ioc->sge_size; 2456 ioc->max_sges_in_chain_message = max_sge_elements/ioc->sge_size; 2457 2458 ioc->chain_offset_value_for_main_message = 2459 ((sizeof(Mpi2SCSIIORequest_t) - sizeof(Mpi2SGEIOUnion_t)) + 2460 (ioc->max_sges_in_chain_message * ioc->sge_size)) / 4; 2461 2462 /* 2463 * MPT2SAS_SG_DEPTH = CONFIG_FUSION_MAX_SGE 2464 */ 2465 chains_needed_per_io = ((ioc->shost->sg_tablesize - 2466 ioc->max_sges_in_main_message)/ioc->max_sges_in_chain_message) 2467 + 1; 2468 if (chains_needed_per_io > facts->MaxChainDepth) { 2469 chains_needed_per_io = facts->MaxChainDepth; 2470 ioc->shost->sg_tablesize = min_t(u16, 2471 ioc->max_sges_in_main_message + (ioc->max_sges_in_chain_message 2472 * chains_needed_per_io), ioc->shost->sg_tablesize); 2473 } 2474 ioc->chains_needed_per_io = chains_needed_per_io; 2475 2476 /* reply free queue sizing - taking into account for 64 FW events */ 2477 ioc->reply_free_queue_depth = ioc->hba_queue_depth + 64; 2478 2479 /* align the reply post queue on the next 16 count boundary */ 2480 if (!ioc->reply_free_queue_depth % 16) 2481 ioc->reply_post_queue_depth = ioc->reply_free_queue_depth + 16; 2482 else 2483 ioc->reply_post_queue_depth = ioc->reply_free_queue_depth + 2484 32 - (ioc->reply_free_queue_depth % 16); 2485 if (ioc->reply_post_queue_depth > 2486 facts->MaxReplyDescriptorPostQueueDepth) { 2487 ioc->reply_post_queue_depth = min_t(u16, 2488 (facts->MaxReplyDescriptorPostQueueDepth - 2489 (facts->MaxReplyDescriptorPostQueueDepth % 16)), 2490 (ioc->hba_queue_depth - (ioc->hba_queue_depth % 16))); 2491 ioc->reply_free_queue_depth = ioc->reply_post_queue_depth - 16; 2492 ioc->hba_queue_depth = ioc->reply_free_queue_depth - 64; 2493 } 2494 2495 2496 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scatter gather: " 2497 "sge_in_main_msg(%d), sge_per_chain(%d), sge_per_io(%d), " 2498 "chains_per_io(%d)\n", ioc->name, ioc->max_sges_in_main_message, 2499 ioc->max_sges_in_chain_message, ioc->shost->sg_tablesize, 2500 ioc->chains_needed_per_io)); 2501 2502 ioc->scsiio_depth = ioc->hba_queue_depth - 2503 ioc->hi_priority_depth - ioc->internal_depth; 2504 2505 /* set the scsi host can_queue depth 2506 * with some internal commands that could be outstanding 2507 */ 2508 ioc->shost->can_queue = ioc->scsiio_depth; 2509 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scsi host: " 2510 "can_queue depth (%d)\n", ioc->name, ioc->shost->can_queue)); 2511 2512 /* contiguous pool for request and chains, 16 byte align, one extra " 2513 * "frame for smid=0 2514 */ 2515 ioc->chain_depth = ioc->chains_needed_per_io * ioc->scsiio_depth; 2516 sz = ((ioc->scsiio_depth + 1) * ioc->request_sz); 2517 2518 /* hi-priority queue */ 2519 sz += (ioc->hi_priority_depth * ioc->request_sz); 2520 2521 /* internal queue */ 2522 sz += (ioc->internal_depth * ioc->request_sz); 2523 2524 ioc->request_dma_sz = sz; 2525 ioc->request = pci_alloc_consistent(ioc->pdev, sz, &ioc->request_dma); 2526 if (!ioc->request) { 2527 printk(MPT2SAS_ERR_FMT "request pool: pci_alloc_consistent " 2528 "failed: hba_depth(%d), chains_per_io(%d), frame_sz(%d), " 2529 "total(%d kB)\n", ioc->name, ioc->hba_queue_depth, 2530 ioc->chains_needed_per_io, ioc->request_sz, sz/1024); 2531 if (ioc->scsiio_depth < MPT2SAS_SAS_QUEUE_DEPTH) 2532 goto out; 2533 retry_sz += 64; 2534 ioc->hba_queue_depth = max_request_credit - retry_sz; 2535 goto retry_allocation; 2536 } 2537 2538 if (retry_sz) 2539 printk(MPT2SAS_ERR_FMT "request pool: pci_alloc_consistent " 2540 "succeed: hba_depth(%d), chains_per_io(%d), frame_sz(%d), " 2541 "total(%d kb)\n", ioc->name, ioc->hba_queue_depth, 2542 ioc->chains_needed_per_io, ioc->request_sz, sz/1024); 2543 2544 2545 /* hi-priority queue */ 2546 ioc->hi_priority = ioc->request + ((ioc->scsiio_depth + 1) * 2547 ioc->request_sz); 2548 ioc->hi_priority_dma = ioc->request_dma + ((ioc->scsiio_depth + 1) * 2549 ioc->request_sz); 2550 2551 /* internal queue */ 2552 ioc->internal = ioc->hi_priority + (ioc->hi_priority_depth * 2553 ioc->request_sz); 2554 ioc->internal_dma = ioc->hi_priority_dma + (ioc->hi_priority_depth * 2555 ioc->request_sz); 2556 2557 2558 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "request pool(0x%p): " 2559 "depth(%d), frame_size(%d), pool_size(%d kB)\n", ioc->name, 2560 ioc->request, ioc->hba_queue_depth, ioc->request_sz, 2561 (ioc->hba_queue_depth * ioc->request_sz)/1024)); 2562 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "request pool: dma(0x%llx)\n", 2563 ioc->name, (unsigned long long) ioc->request_dma)); 2564 total_sz += sz; 2565 2566 sz = ioc->scsiio_depth * sizeof(struct scsiio_tracker); 2567 ioc->scsi_lookup_pages = get_order(sz); 2568 ioc->scsi_lookup = (struct scsiio_tracker *)__get_free_pages( 2569 GFP_KERNEL, ioc->scsi_lookup_pages); 2570 if (!ioc->scsi_lookup) { 2571 printk(MPT2SAS_ERR_FMT "scsi_lookup: get_free_pages failed, " 2572 "sz(%d)\n", ioc->name, (int)sz); 2573 goto out; 2574 } 2575 2576 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scsiio(0x%p): " 2577 "depth(%d)\n", ioc->name, ioc->request, 2578 ioc->scsiio_depth)); 2579 2580 ioc->chain_depth = min_t(u32, ioc->chain_depth, MAX_CHAIN_DEPTH); 2581 sz = ioc->chain_depth * sizeof(struct chain_tracker); 2582 ioc->chain_pages = get_order(sz); 2583 2584 ioc->chain_lookup = (struct chain_tracker *)__get_free_pages( 2585 GFP_KERNEL, ioc->chain_pages); 2586 if (!ioc->chain_lookup) { 2587 printk(MPT2SAS_ERR_FMT "chain_lookup: get_free_pages failed, " 2588 "sz(%d)\n", ioc->name, (int)sz); 2589 goto out; 2590 } 2591 ioc->chain_dma_pool = pci_pool_create("chain pool", ioc->pdev, 2592 ioc->request_sz, 16, 0); 2593 if (!ioc->chain_dma_pool) { 2594 printk(MPT2SAS_ERR_FMT "chain_dma_pool: pci_pool_create " 2595 "failed\n", ioc->name); 2596 goto out; 2597 } 2598 for (i = 0; i < ioc->chain_depth; i++) { 2599 ioc->chain_lookup[i].chain_buffer = pci_pool_alloc( 2600 ioc->chain_dma_pool , GFP_KERNEL, 2601 &ioc->chain_lookup[i].chain_buffer_dma); 2602 if (!ioc->chain_lookup[i].chain_buffer) { 2603 ioc->chain_depth = i; 2604 goto chain_done; 2605 } 2606 total_sz += ioc->request_sz; 2607 } 2608chain_done: 2609 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "chain pool depth" 2610 "(%d), frame_size(%d), pool_size(%d kB)\n", ioc->name, 2611 ioc->chain_depth, ioc->request_sz, ((ioc->chain_depth * 2612 ioc->request_sz))/1024)); 2613 2614 /* initialize hi-priority queue smid's */ 2615 ioc->hpr_lookup = kcalloc(ioc->hi_priority_depth, 2616 sizeof(struct request_tracker), GFP_KERNEL); 2617 if (!ioc->hpr_lookup) { 2618 printk(MPT2SAS_ERR_FMT "hpr_lookup: kcalloc failed\n", 2619 ioc->name); 2620 goto out; 2621 } 2622 ioc->hi_priority_smid = ioc->scsiio_depth + 1; 2623 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "hi_priority(0x%p): " 2624 "depth(%d), start smid(%d)\n", ioc->name, ioc->hi_priority, 2625 ioc->hi_priority_depth, ioc->hi_priority_smid)); 2626 2627 /* initialize internal queue smid's */ 2628 ioc->internal_lookup = kcalloc(ioc->internal_depth, 2629 sizeof(struct request_tracker), GFP_KERNEL); 2630 if (!ioc->internal_lookup) { 2631 printk(MPT2SAS_ERR_FMT "internal_lookup: kcalloc failed\n", 2632 ioc->name); 2633 goto out; 2634 } 2635 ioc->internal_smid = ioc->hi_priority_smid + ioc->hi_priority_depth; 2636 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "internal(0x%p): " 2637 "depth(%d), start smid(%d)\n", ioc->name, ioc->internal, 2638 ioc->internal_depth, ioc->internal_smid)); 2639 2640 /* sense buffers, 4 byte align */ 2641 sz = ioc->scsiio_depth * SCSI_SENSE_BUFFERSIZE; 2642 ioc->sense_dma_pool = pci_pool_create("sense pool", ioc->pdev, sz, 4, 2643 0); 2644 if (!ioc->sense_dma_pool) { 2645 printk(MPT2SAS_ERR_FMT "sense pool: pci_pool_create failed\n", 2646 ioc->name); 2647 goto out; 2648 } 2649 ioc->sense = pci_pool_alloc(ioc->sense_dma_pool , GFP_KERNEL, 2650 &ioc->sense_dma); 2651 if (!ioc->sense) { 2652 printk(MPT2SAS_ERR_FMT "sense pool: pci_pool_alloc failed\n", 2653 ioc->name); 2654 goto out; 2655 } 2656 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT 2657 "sense pool(0x%p): depth(%d), element_size(%d), pool_size" 2658 "(%d kB)\n", ioc->name, ioc->sense, ioc->scsiio_depth, 2659 SCSI_SENSE_BUFFERSIZE, sz/1024)); 2660 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "sense_dma(0x%llx)\n", 2661 ioc->name, (unsigned long long)ioc->sense_dma)); 2662 total_sz += sz; 2663 2664 /* reply pool, 4 byte align */ 2665 sz = ioc->reply_free_queue_depth * ioc->reply_sz; 2666 ioc->reply_dma_pool = pci_pool_create("reply pool", ioc->pdev, sz, 4, 2667 0); 2668 if (!ioc->reply_dma_pool) { 2669 printk(MPT2SAS_ERR_FMT "reply pool: pci_pool_create failed\n", 2670 ioc->name); 2671 goto out; 2672 } 2673 ioc->reply = pci_pool_alloc(ioc->reply_dma_pool , GFP_KERNEL, 2674 &ioc->reply_dma); 2675 if (!ioc->reply) { 2676 printk(MPT2SAS_ERR_FMT "reply pool: pci_pool_alloc failed\n", 2677 ioc->name); 2678 goto out; 2679 } 2680 ioc->reply_dma_min_address = (u32)(ioc->reply_dma); 2681 ioc->reply_dma_max_address = (u32)(ioc->reply_dma) + sz; 2682 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply pool(0x%p): depth" 2683 "(%d), frame_size(%d), pool_size(%d kB)\n", ioc->name, ioc->reply, 2684 ioc->reply_free_queue_depth, ioc->reply_sz, sz/1024)); 2685 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_dma(0x%llx)\n", 2686 ioc->name, (unsigned long long)ioc->reply_dma)); 2687 total_sz += sz; 2688 2689 /* reply free queue, 16 byte align */ 2690 sz = ioc->reply_free_queue_depth * 4; 2691 ioc->reply_free_dma_pool = pci_pool_create("reply_free pool", 2692 ioc->pdev, sz, 16, 0); 2693 if (!ioc->reply_free_dma_pool) { 2694 printk(MPT2SAS_ERR_FMT "reply_free pool: pci_pool_create " 2695 "failed\n", ioc->name); 2696 goto out; 2697 } 2698 ioc->reply_free = pci_pool_alloc(ioc->reply_free_dma_pool , GFP_KERNEL, 2699 &ioc->reply_free_dma); 2700 if (!ioc->reply_free) { 2701 printk(MPT2SAS_ERR_FMT "reply_free pool: pci_pool_alloc " 2702 "failed\n", ioc->name); 2703 goto out; 2704 } 2705 memset(ioc->reply_free, 0, sz); 2706 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_free pool(0x%p): " 2707 "depth(%d), element_size(%d), pool_size(%d kB)\n", ioc->name, 2708 ioc->reply_free, ioc->reply_free_queue_depth, 4, sz/1024)); 2709 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_free_dma" 2710 "(0x%llx)\n", ioc->name, (unsigned long long)ioc->reply_free_dma)); 2711 total_sz += sz; 2712 2713 /* reply post queue, 16 byte align */ 2714 reply_post_free_sz = ioc->reply_post_queue_depth * 2715 sizeof(Mpi2DefaultReplyDescriptor_t); 2716 if (_base_is_controller_msix_enabled(ioc)) 2717 sz = reply_post_free_sz * ioc->reply_queue_count; 2718 else 2719 sz = reply_post_free_sz; 2720 ioc->reply_post_free_dma_pool = pci_pool_create("reply_post_free pool", 2721 ioc->pdev, sz, 16, 0); 2722 if (!ioc->reply_post_free_dma_pool) { 2723 printk(MPT2SAS_ERR_FMT "reply_post_free pool: pci_pool_create " 2724 "failed\n", ioc->name); 2725 goto out; 2726 } 2727 ioc->reply_post_free = pci_pool_alloc(ioc->reply_post_free_dma_pool , 2728 GFP_KERNEL, &ioc->reply_post_free_dma); 2729 if (!ioc->reply_post_free) { 2730 printk(MPT2SAS_ERR_FMT "reply_post_free pool: pci_pool_alloc " 2731 "failed\n", ioc->name); 2732 goto out; 2733 } 2734 memset(ioc->reply_post_free, 0, sz); 2735 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply post free pool" 2736 "(0x%p): depth(%d), element_size(%d), pool_size(%d kB)\n", 2737 ioc->name, ioc->reply_post_free, ioc->reply_post_queue_depth, 8, 2738 sz/1024)); 2739 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_post_free_dma = " 2740 "(0x%llx)\n", ioc->name, (unsigned long long) 2741 ioc->reply_post_free_dma)); 2742 total_sz += sz; 2743 2744 ioc->config_page_sz = 512; 2745 ioc->config_page = pci_alloc_consistent(ioc->pdev, 2746 ioc->config_page_sz, &ioc->config_page_dma); 2747 if (!ioc->config_page) { 2748 printk(MPT2SAS_ERR_FMT "config page: pci_pool_alloc " 2749 "failed\n", ioc->name); 2750 goto out; 2751 } 2752 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "config page(0x%p): size" 2753 "(%d)\n", ioc->name, ioc->config_page, ioc->config_page_sz)); 2754 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "config_page_dma" 2755 "(0x%llx)\n", ioc->name, (unsigned long long)ioc->config_page_dma)); 2756 total_sz += ioc->config_page_sz; 2757 2758 printk(MPT2SAS_INFO_FMT "Allocated physical memory: size(%d kB)\n", 2759 ioc->name, total_sz/1024); 2760 printk(MPT2SAS_INFO_FMT "Current Controller Queue Depth(%d), " 2761 "Max Controller Queue Depth(%d)\n", 2762 ioc->name, ioc->shost->can_queue, facts->RequestCredit); 2763 printk(MPT2SAS_INFO_FMT "Scatter Gather Elements per IO(%d)\n", 2764 ioc->name, ioc->shost->sg_tablesize); 2765 return 0; 2766 2767 out: 2768 return -ENOMEM; 2769} 2770 2771 2772/** 2773 * mpt2sas_base_get_iocstate - Get the current state of a MPT adapter. 2774 * @ioc: Pointer to MPT_ADAPTER structure 2775 * @cooked: Request raw or cooked IOC state 2776 * 2777 * Returns all IOC Doorbell register bits if cooked==0, else just the 2778 * Doorbell bits in MPI_IOC_STATE_MASK. 2779 */ 2780u32 2781mpt2sas_base_get_iocstate(struct MPT2SAS_ADAPTER *ioc, int cooked) 2782{ 2783 u32 s, sc; 2784 2785 s = readl(&ioc->chip->Doorbell); 2786 sc = s & MPI2_IOC_STATE_MASK; 2787 return cooked ? sc : s; 2788} 2789 2790/** 2791 * _base_wait_on_iocstate - waiting on a particular ioc state 2792 * @ioc_state: controller state { READY, OPERATIONAL, or RESET } 2793 * @timeout: timeout in second 2794 * @sleep_flag: CAN_SLEEP or NO_SLEEP 2795 * 2796 * Returns 0 for success, non-zero for failure. 2797 */ 2798static int 2799_base_wait_on_iocstate(struct MPT2SAS_ADAPTER *ioc, u32 ioc_state, int timeout, 2800 int sleep_flag) 2801{ 2802 u32 count, cntdn; 2803 u32 current_state; 2804 2805 count = 0; 2806 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout; 2807 do { 2808 current_state = mpt2sas_base_get_iocstate(ioc, 1); 2809 if (current_state == ioc_state) 2810 return 0; 2811 if (count && current_state == MPI2_IOC_STATE_FAULT) 2812 break; 2813 if (sleep_flag == CAN_SLEEP) 2814 msleep(1); 2815 else 2816 udelay(500); 2817 count++; 2818 } while (--cntdn); 2819 2820 return current_state; 2821} 2822 2823/** 2824 * _base_wait_for_doorbell_int - waiting for controller interrupt(generated by 2825 * a write to the doorbell) 2826 * @ioc: per adapter object 2827 * @timeout: timeout in second 2828 * @sleep_flag: CAN_SLEEP or NO_SLEEP 2829 * 2830 * Returns 0 for success, non-zero for failure. 2831 * 2832 * Notes: MPI2_HIS_IOC2SYS_DB_STATUS - set to one when IOC writes to doorbell. 2833 */ 2834static int 2835_base_wait_for_doorbell_int(struct MPT2SAS_ADAPTER *ioc, int timeout, 2836 int sleep_flag) 2837{ 2838 u32 cntdn, count; 2839 u32 int_status; 2840 2841 count = 0; 2842 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout; 2843 do { 2844 int_status = readl(&ioc->chip->HostInterruptStatus); 2845 if (int_status & MPI2_HIS_IOC2SYS_DB_STATUS) { 2846 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " 2847 "successful count(%d), timeout(%d)\n", ioc->name, 2848 __func__, count, timeout)); 2849 return 0; 2850 } 2851 if (sleep_flag == CAN_SLEEP) 2852 msleep(1); 2853 else 2854 udelay(500); 2855 count++; 2856 } while (--cntdn); 2857 2858 printk(MPT2SAS_ERR_FMT "%s: failed due to timeout count(%d), " 2859 "int_status(%x)!\n", ioc->name, __func__, count, int_status); 2860 return -EFAULT; 2861} 2862 2863/** 2864 * _base_wait_for_doorbell_ack - waiting for controller to read the doorbell. 2865 * @ioc: per adapter object 2866 * @timeout: timeout in second 2867 * @sleep_flag: CAN_SLEEP or NO_SLEEP 2868 * 2869 * Returns 0 for success, non-zero for failure. 2870 * 2871 * Notes: MPI2_HIS_SYS2IOC_DB_STATUS - set to one when host writes to 2872 * doorbell. 2873 */ 2874static int 2875_base_wait_for_doorbell_ack(struct MPT2SAS_ADAPTER *ioc, int timeout, 2876 int sleep_flag) 2877{ 2878 u32 cntdn, count; 2879 u32 int_status; 2880 u32 doorbell; 2881 2882 count = 0; 2883 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout; 2884 do { 2885 int_status = readl(&ioc->chip->HostInterruptStatus); 2886 if (!(int_status & MPI2_HIS_SYS2IOC_DB_STATUS)) { 2887 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " 2888 "successful count(%d), timeout(%d)\n", ioc->name, 2889 __func__, count, timeout)); 2890 return 0; 2891 } else if (int_status & MPI2_HIS_IOC2SYS_DB_STATUS) { 2892 doorbell = readl(&ioc->chip->Doorbell); 2893 if ((doorbell & MPI2_IOC_STATE_MASK) == 2894 MPI2_IOC_STATE_FAULT) { 2895 mpt2sas_base_fault_info(ioc , doorbell); 2896 return -EFAULT; 2897 } 2898 } else if (int_status == 0xFFFFFFFF) 2899 goto out; 2900 2901 if (sleep_flag == CAN_SLEEP) 2902 msleep(1); 2903 else 2904 udelay(500); 2905 count++; 2906 } while (--cntdn); 2907 2908 out: 2909 printk(MPT2SAS_ERR_FMT "%s: failed due to timeout count(%d), " 2910 "int_status(%x)!\n", ioc->name, __func__, count, int_status); 2911 return -EFAULT; 2912} 2913 2914/** 2915 * _base_wait_for_doorbell_not_used - waiting for doorbell to not be in use 2916 * @ioc: per adapter object 2917 * @timeout: timeout in second 2918 * @sleep_flag: CAN_SLEEP or NO_SLEEP 2919 * 2920 * Returns 0 for success, non-zero for failure. 2921 * 2922 */ 2923static int 2924_base_wait_for_doorbell_not_used(struct MPT2SAS_ADAPTER *ioc, int timeout, 2925 int sleep_flag) 2926{ 2927 u32 cntdn, count; 2928 u32 doorbell_reg; 2929 2930 count = 0; 2931 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout; 2932 do { 2933 doorbell_reg = readl(&ioc->chip->Doorbell); 2934 if (!(doorbell_reg & MPI2_DOORBELL_USED)) { 2935 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " 2936 "successful count(%d), timeout(%d)\n", ioc->name, 2937 __func__, count, timeout)); 2938 return 0; 2939 } 2940 if (sleep_flag == CAN_SLEEP) 2941 msleep(1); 2942 else 2943 udelay(500); 2944 count++; 2945 } while (--cntdn); 2946 2947 printk(MPT2SAS_ERR_FMT "%s: failed due to timeout count(%d), " 2948 "doorbell_reg(%x)!\n", ioc->name, __func__, count, doorbell_reg); 2949 return -EFAULT; 2950} 2951 2952/** 2953 * _base_send_ioc_reset - send doorbell reset 2954 * @ioc: per adapter object 2955 * @reset_type: currently only supports: MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET 2956 * @timeout: timeout in second 2957 * @sleep_flag: CAN_SLEEP or NO_SLEEP 2958 * 2959 * Returns 0 for success, non-zero for failure. 2960 */ 2961static int 2962_base_send_ioc_reset(struct MPT2SAS_ADAPTER *ioc, u8 reset_type, int timeout, 2963 int sleep_flag) 2964{ 2965 u32 ioc_state; 2966 int r = 0; 2967 2968 if (reset_type != MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET) { 2969 printk(MPT2SAS_ERR_FMT "%s: unknown reset_type\n", 2970 ioc->name, __func__); 2971 return -EFAULT; 2972 } 2973 2974 if (!(ioc->facts.IOCCapabilities & 2975 MPI2_IOCFACTS_CAPABILITY_EVENT_REPLAY)) 2976 return -EFAULT; 2977 2978 printk(MPT2SAS_INFO_FMT "sending message unit reset !!\n", ioc->name); 2979 2980 writel(reset_type << MPI2_DOORBELL_FUNCTION_SHIFT, 2981 &ioc->chip->Doorbell); 2982 if ((_base_wait_for_doorbell_ack(ioc, 15, sleep_flag))) { 2983 r = -EFAULT; 2984 goto out; 2985 } 2986 ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY, 2987 timeout, sleep_flag); 2988 if (ioc_state) { 2989 printk(MPT2SAS_ERR_FMT "%s: failed going to ready state " 2990 " (ioc_state=0x%x)\n", ioc->name, __func__, ioc_state); 2991 r = -EFAULT; 2992 goto out; 2993 } 2994 out: 2995 printk(MPT2SAS_INFO_FMT "message unit reset: %s\n", 2996 ioc->name, ((r == 0) ? "SUCCESS" : "FAILED")); 2997 return r; 2998} 2999 3000/** 3001 * _base_handshake_req_reply_wait - send request thru doorbell interface 3002 * @ioc: per adapter object 3003 * @request_bytes: request length 3004 * @request: pointer having request payload 3005 * @reply_bytes: reply length 3006 * @reply: pointer to reply payload 3007 * @timeout: timeout in second 3008 * @sleep_flag: CAN_SLEEP or NO_SLEEP 3009 * 3010 * Returns 0 for success, non-zero for failure. 3011 */ 3012static int 3013_base_handshake_req_reply_wait(struct MPT2SAS_ADAPTER *ioc, int request_bytes, 3014 u32 *request, int reply_bytes, u16 *reply, int timeout, int sleep_flag) 3015{ 3016 MPI2DefaultReply_t *default_reply = (MPI2DefaultReply_t *)reply; 3017 int i; 3018 u8 failed; 3019 u16 dummy; 3020 __le32 *mfp; 3021 3022 /* make sure doorbell is not in use */ 3023 if ((readl(&ioc->chip->Doorbell) & MPI2_DOORBELL_USED)) { 3024 printk(MPT2SAS_ERR_FMT "doorbell is in use " 3025 " (line=%d)\n", ioc->name, __LINE__); 3026 return -EFAULT; 3027 } 3028 3029 /* clear pending doorbell interrupts from previous state changes */ 3030 if (readl(&ioc->chip->HostInterruptStatus) & 3031 MPI2_HIS_IOC2SYS_DB_STATUS) 3032 writel(0, &ioc->chip->HostInterruptStatus); 3033 3034 /* send message to ioc */ 3035 writel(((MPI2_FUNCTION_HANDSHAKE<<MPI2_DOORBELL_FUNCTION_SHIFT) | 3036 ((request_bytes/4)<<MPI2_DOORBELL_ADD_DWORDS_SHIFT)), 3037 &ioc->chip->Doorbell); 3038 3039 if ((_base_wait_for_doorbell_int(ioc, 5, NO_SLEEP))) { 3040 printk(MPT2SAS_ERR_FMT "doorbell handshake " 3041 "int failed (line=%d)\n", ioc->name, __LINE__); 3042 return -EFAULT; 3043 } 3044 writel(0, &ioc->chip->HostInterruptStatus); 3045 3046 if ((_base_wait_for_doorbell_ack(ioc, 5, sleep_flag))) { 3047 printk(MPT2SAS_ERR_FMT "doorbell handshake " 3048 "ack failed (line=%d)\n", ioc->name, __LINE__); 3049 return -EFAULT; 3050 } 3051 3052 /* send message 32-bits at a time */ 3053 for (i = 0, failed = 0; i < request_bytes/4 && !failed; i++) { 3054 writel(cpu_to_le32(request[i]), &ioc->chip->Doorbell); 3055 if ((_base_wait_for_doorbell_ack(ioc, 5, sleep_flag))) 3056 failed = 1; 3057 } 3058 3059 if (failed) { 3060 printk(MPT2SAS_ERR_FMT "doorbell handshake " 3061 "sending request failed (line=%d)\n", ioc->name, __LINE__); 3062 return -EFAULT; 3063 } 3064 3065 /* now wait for the reply */ 3066 if ((_base_wait_for_doorbell_int(ioc, timeout, sleep_flag))) { 3067 printk(MPT2SAS_ERR_FMT "doorbell handshake " 3068 "int failed (line=%d)\n", ioc->name, __LINE__); 3069 return -EFAULT; 3070 } 3071 3072 /* read the first two 16-bits, it gives the total length of the reply */ 3073 reply[0] = le16_to_cpu(readl(&ioc->chip->Doorbell) 3074 & MPI2_DOORBELL_DATA_MASK); 3075 writel(0, &ioc->chip->HostInterruptStatus); 3076 if ((_base_wait_for_doorbell_int(ioc, 5, sleep_flag))) { 3077 printk(MPT2SAS_ERR_FMT "doorbell handshake " 3078 "int failed (line=%d)\n", ioc->name, __LINE__); 3079 return -EFAULT; 3080 } 3081 reply[1] = le16_to_cpu(readl(&ioc->chip->Doorbell) 3082 & MPI2_DOORBELL_DATA_MASK); 3083 writel(0, &ioc->chip->HostInterruptStatus); 3084 3085 for (i = 2; i < default_reply->MsgLength * 2; i++) { 3086 if ((_base_wait_for_doorbell_int(ioc, 5, sleep_flag))) { 3087 printk(MPT2SAS_ERR_FMT "doorbell " 3088 "handshake int failed (line=%d)\n", ioc->name, 3089 __LINE__); 3090 return -EFAULT; 3091 } 3092 if (i >= reply_bytes/2) /* overflow case */ 3093 dummy = readl(&ioc->chip->Doorbell); 3094 else 3095 reply[i] = le16_to_cpu(readl(&ioc->chip->Doorbell) 3096 & MPI2_DOORBELL_DATA_MASK); 3097 writel(0, &ioc->chip->HostInterruptStatus); 3098 } 3099 3100 _base_wait_for_doorbell_int(ioc, 5, sleep_flag); 3101 if (_base_wait_for_doorbell_not_used(ioc, 5, sleep_flag) != 0) { 3102 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "doorbell is in use " 3103 " (line=%d)\n", ioc->name, __LINE__)); 3104 } 3105 writel(0, &ioc->chip->HostInterruptStatus); 3106 3107 if (ioc->logging_level & MPT_DEBUG_INIT) { 3108 mfp = (__le32 *)reply; 3109 printk(KERN_INFO "\toffset:data\n"); 3110 for (i = 0; i < reply_bytes/4; i++) 3111 printk(KERN_INFO "\t[0x%02x]:%08x\n", i*4, 3112 le32_to_cpu(mfp[i])); 3113 } 3114 return 0; 3115} 3116 3117/** 3118 * mpt2sas_base_sas_iounit_control - send sas iounit control to FW 3119 * @ioc: per adapter object 3120 * @mpi_reply: the reply payload from FW 3121 * @mpi_request: the request payload sent to FW 3122 * 3123 * The SAS IO Unit Control Request message allows the host to perform low-level 3124 * operations, such as resets on the PHYs of the IO Unit, also allows the host 3125 * to obtain the IOC assigned device handles for a device if it has other 3126 * identifying information about the device, in addition allows the host to 3127 * remove IOC resources associated with the device. 3128 * 3129 * Returns 0 for success, non-zero for failure. 3130 */ 3131int 3132mpt2sas_base_sas_iounit_control(struct MPT2SAS_ADAPTER *ioc, 3133 Mpi2SasIoUnitControlReply_t *mpi_reply, 3134 Mpi2SasIoUnitControlRequest_t *mpi_request) 3135{ 3136 u16 smid; 3137 u32 ioc_state; 3138 unsigned long timeleft; 3139 u8 issue_reset; 3140 int rc; 3141 void *request; 3142 u16 wait_state_count; 3143 3144 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 3145 __func__)); 3146 3147 mutex_lock(&ioc->base_cmds.mutex); 3148 3149 if (ioc->base_cmds.status != MPT2_CMD_NOT_USED) { 3150 printk(MPT2SAS_ERR_FMT "%s: base_cmd in use\n", 3151 ioc->name, __func__); 3152 rc = -EAGAIN; 3153 goto out; 3154 } 3155 3156 wait_state_count = 0; 3157 ioc_state = mpt2sas_base_get_iocstate(ioc, 1); 3158 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { 3159 if (wait_state_count++ == 10) { 3160 printk(MPT2SAS_ERR_FMT 3161 "%s: failed due to ioc not operational\n", 3162 ioc->name, __func__); 3163 rc = -EFAULT; 3164 goto out; 3165 } 3166 ssleep(1); 3167 ioc_state = mpt2sas_base_get_iocstate(ioc, 1); 3168 printk(MPT2SAS_INFO_FMT "%s: waiting for " 3169 "operational state(count=%d)\n", ioc->name, 3170 __func__, wait_state_count); 3171 } 3172 3173 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx); 3174 if (!smid) { 3175 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", 3176 ioc->name, __func__); 3177 rc = -EAGAIN; 3178 goto out; 3179 } 3180 3181 rc = 0; 3182 ioc->base_cmds.status = MPT2_CMD_PENDING; 3183 request = mpt2sas_base_get_msg_frame(ioc, smid); 3184 ioc->base_cmds.smid = smid; 3185 memcpy(request, mpi_request, sizeof(Mpi2SasIoUnitControlRequest_t)); 3186 if (mpi_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET || 3187 mpi_request->Operation == MPI2_SAS_OP_PHY_LINK_RESET) 3188 ioc->ioc_link_reset_in_progress = 1; 3189 init_completion(&ioc->base_cmds.done); 3190 mpt2sas_base_put_smid_default(ioc, smid); 3191 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done, 3192 msecs_to_jiffies(10000)); 3193 if ((mpi_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET || 3194 mpi_request->Operation == MPI2_SAS_OP_PHY_LINK_RESET) && 3195 ioc->ioc_link_reset_in_progress) 3196 ioc->ioc_link_reset_in_progress = 0; 3197 if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) { 3198 printk(MPT2SAS_ERR_FMT "%s: timeout\n", 3199 ioc->name, __func__); 3200 _debug_dump_mf(mpi_request, 3201 sizeof(Mpi2SasIoUnitControlRequest_t)/4); 3202 if (!(ioc->base_cmds.status & MPT2_CMD_RESET)) 3203 issue_reset = 1; 3204 goto issue_host_reset; 3205 } 3206 if (ioc->base_cmds.status & MPT2_CMD_REPLY_VALID) 3207 memcpy(mpi_reply, ioc->base_cmds.reply, 3208 sizeof(Mpi2SasIoUnitControlReply_t)); 3209 else 3210 memset(mpi_reply, 0, sizeof(Mpi2SasIoUnitControlReply_t)); 3211 ioc->base_cmds.status = MPT2_CMD_NOT_USED; 3212 goto out; 3213 3214 issue_host_reset: 3215 if (issue_reset) 3216 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, 3217 FORCE_BIG_HAMMER); 3218 ioc->base_cmds.status = MPT2_CMD_NOT_USED; 3219 rc = -EFAULT; 3220 out: 3221 mutex_unlock(&ioc->base_cmds.mutex); 3222 return rc; 3223} 3224 3225 3226/** 3227 * mpt2sas_base_scsi_enclosure_processor - sending request to sep device 3228 * @ioc: per adapter object 3229 * @mpi_reply: the reply payload from FW 3230 * @mpi_request: the request payload sent to FW 3231 * 3232 * The SCSI Enclosure Processor request message causes the IOC to 3233 * communicate with SES devices to control LED status signals. 3234 * 3235 * Returns 0 for success, non-zero for failure. 3236 */ 3237int 3238mpt2sas_base_scsi_enclosure_processor(struct MPT2SAS_ADAPTER *ioc, 3239 Mpi2SepReply_t *mpi_reply, Mpi2SepRequest_t *mpi_request) 3240{ 3241 u16 smid; 3242 u32 ioc_state; 3243 unsigned long timeleft; 3244 u8 issue_reset; 3245 int rc; 3246 void *request; 3247 u16 wait_state_count; 3248 3249 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 3250 __func__)); 3251 3252 mutex_lock(&ioc->base_cmds.mutex); 3253 3254 if (ioc->base_cmds.status != MPT2_CMD_NOT_USED) { 3255 printk(MPT2SAS_ERR_FMT "%s: base_cmd in use\n", 3256 ioc->name, __func__); 3257 rc = -EAGAIN; 3258 goto out; 3259 } 3260 3261 wait_state_count = 0; 3262 ioc_state = mpt2sas_base_get_iocstate(ioc, 1); 3263 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { 3264 if (wait_state_count++ == 10) { 3265 printk(MPT2SAS_ERR_FMT 3266 "%s: failed due to ioc not operational\n", 3267 ioc->name, __func__); 3268 rc = -EFAULT; 3269 goto out; 3270 } 3271 ssleep(1); 3272 ioc_state = mpt2sas_base_get_iocstate(ioc, 1); 3273 printk(MPT2SAS_INFO_FMT "%s: waiting for " 3274 "operational state(count=%d)\n", ioc->name, 3275 __func__, wait_state_count); 3276 } 3277 3278 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx); 3279 if (!smid) { 3280 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", 3281 ioc->name, __func__); 3282 rc = -EAGAIN; 3283 goto out; 3284 } 3285 3286 rc = 0; 3287 ioc->base_cmds.status = MPT2_CMD_PENDING; 3288 request = mpt2sas_base_get_msg_frame(ioc, smid); 3289 ioc->base_cmds.smid = smid; 3290 memcpy(request, mpi_request, sizeof(Mpi2SepReply_t)); 3291 init_completion(&ioc->base_cmds.done); 3292 mpt2sas_base_put_smid_default(ioc, smid); 3293 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done, 3294 msecs_to_jiffies(10000)); 3295 if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) { 3296 printk(MPT2SAS_ERR_FMT "%s: timeout\n", 3297 ioc->name, __func__); 3298 _debug_dump_mf(mpi_request, 3299 sizeof(Mpi2SepRequest_t)/4); 3300 if (!(ioc->base_cmds.status & MPT2_CMD_RESET)) 3301 issue_reset = 1; 3302 goto issue_host_reset; 3303 } 3304 if (ioc->base_cmds.status & MPT2_CMD_REPLY_VALID) 3305 memcpy(mpi_reply, ioc->base_cmds.reply, 3306 sizeof(Mpi2SepReply_t)); 3307 else 3308 memset(mpi_reply, 0, sizeof(Mpi2SepReply_t)); 3309 ioc->base_cmds.status = MPT2_CMD_NOT_USED; 3310 goto out; 3311 3312 issue_host_reset: 3313 if (issue_reset) 3314 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, 3315 FORCE_BIG_HAMMER); 3316 ioc->base_cmds.status = MPT2_CMD_NOT_USED; 3317 rc = -EFAULT; 3318 out: 3319 mutex_unlock(&ioc->base_cmds.mutex); 3320 return rc; 3321} 3322 3323/** 3324 * _base_get_port_facts - obtain port facts reply and save in ioc 3325 * @ioc: per adapter object 3326 * @sleep_flag: CAN_SLEEP or NO_SLEEP 3327 * 3328 * Returns 0 for success, non-zero for failure. 3329 */ 3330static int 3331_base_get_port_facts(struct MPT2SAS_ADAPTER *ioc, int port, int sleep_flag) 3332{ 3333 Mpi2PortFactsRequest_t mpi_request; 3334 Mpi2PortFactsReply_t mpi_reply; 3335 struct mpt2sas_port_facts *pfacts; 3336 int mpi_reply_sz, mpi_request_sz, r; 3337 3338 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 3339 __func__)); 3340 3341 mpi_reply_sz = sizeof(Mpi2PortFactsReply_t); 3342 mpi_request_sz = sizeof(Mpi2PortFactsRequest_t); 3343 memset(&mpi_request, 0, mpi_request_sz); 3344 mpi_request.Function = MPI2_FUNCTION_PORT_FACTS; 3345 mpi_request.PortNumber = port; 3346 r = _base_handshake_req_reply_wait(ioc, mpi_request_sz, 3347 (u32 *)&mpi_request, mpi_reply_sz, (u16 *)&mpi_reply, 5, CAN_SLEEP); 3348 3349 if (r != 0) { 3350 printk(MPT2SAS_ERR_FMT "%s: handshake failed (r=%d)\n", 3351 ioc->name, __func__, r); 3352 return r; 3353 } 3354 3355 pfacts = &ioc->pfacts[port]; 3356 memset(pfacts, 0, sizeof(struct mpt2sas_port_facts)); 3357 pfacts->PortNumber = mpi_reply.PortNumber; 3358 pfacts->VP_ID = mpi_reply.VP_ID; 3359 pfacts->VF_ID = mpi_reply.VF_ID; 3360 pfacts->MaxPostedCmdBuffers = 3361 le16_to_cpu(mpi_reply.MaxPostedCmdBuffers); 3362 3363 return 0; 3364} 3365 3366/** 3367 * _base_get_ioc_facts - obtain ioc facts reply and save in ioc 3368 * @ioc: per adapter object 3369 * @sleep_flag: CAN_SLEEP or NO_SLEEP 3370 * 3371 * Returns 0 for success, non-zero for failure. 3372 */ 3373static int 3374_base_get_ioc_facts(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) 3375{ 3376 Mpi2IOCFactsRequest_t mpi_request; 3377 Mpi2IOCFactsReply_t mpi_reply; 3378 struct mpt2sas_facts *facts; 3379 int mpi_reply_sz, mpi_request_sz, r; 3380 3381 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 3382 __func__)); 3383 3384 mpi_reply_sz = sizeof(Mpi2IOCFactsReply_t); 3385 mpi_request_sz = sizeof(Mpi2IOCFactsRequest_t); 3386 memset(&mpi_request, 0, mpi_request_sz); 3387 mpi_request.Function = MPI2_FUNCTION_IOC_FACTS; 3388 r = _base_handshake_req_reply_wait(ioc, mpi_request_sz, 3389 (u32 *)&mpi_request, mpi_reply_sz, (u16 *)&mpi_reply, 5, CAN_SLEEP); 3390 3391 if (r != 0) { 3392 printk(MPT2SAS_ERR_FMT "%s: handshake failed (r=%d)\n", 3393 ioc->name, __func__, r); 3394 return r; 3395 } 3396 3397 facts = &ioc->facts; 3398 memset(facts, 0, sizeof(struct mpt2sas_facts)); 3399 facts->MsgVersion = le16_to_cpu(mpi_reply.MsgVersion); 3400 facts->HeaderVersion = le16_to_cpu(mpi_reply.HeaderVersion); 3401 facts->VP_ID = mpi_reply.VP_ID; 3402 facts->VF_ID = mpi_reply.VF_ID; 3403 facts->IOCExceptions = le16_to_cpu(mpi_reply.IOCExceptions); 3404 facts->MaxChainDepth = mpi_reply.MaxChainDepth; 3405 facts->WhoInit = mpi_reply.WhoInit; 3406 facts->NumberOfPorts = mpi_reply.NumberOfPorts; 3407 facts->MaxMSIxVectors = mpi_reply.MaxMSIxVectors; 3408 facts->RequestCredit = le16_to_cpu(mpi_reply.RequestCredit); 3409 facts->MaxReplyDescriptorPostQueueDepth = 3410 le16_to_cpu(mpi_reply.MaxReplyDescriptorPostQueueDepth); 3411 facts->ProductID = le16_to_cpu(mpi_reply.ProductID); 3412 facts->IOCCapabilities = le32_to_cpu(mpi_reply.IOCCapabilities); 3413 if ((facts->IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID)) 3414 ioc->ir_firmware = 1; 3415 facts->FWVersion.Word = le32_to_cpu(mpi_reply.FWVersion.Word); 3416 facts->IOCRequestFrameSize = 3417 le16_to_cpu(mpi_reply.IOCRequestFrameSize); 3418 facts->MaxInitiators = le16_to_cpu(mpi_reply.MaxInitiators); 3419 facts->MaxTargets = le16_to_cpu(mpi_reply.MaxTargets); 3420 ioc->shost->max_id = -1; 3421 facts->MaxSasExpanders = le16_to_cpu(mpi_reply.MaxSasExpanders); 3422 facts->MaxEnclosures = le16_to_cpu(mpi_reply.MaxEnclosures); 3423 facts->ProtocolFlags = le16_to_cpu(mpi_reply.ProtocolFlags); 3424 facts->HighPriorityCredit = 3425 le16_to_cpu(mpi_reply.HighPriorityCredit); 3426 facts->ReplyFrameSize = mpi_reply.ReplyFrameSize; 3427 facts->MaxDevHandle = le16_to_cpu(mpi_reply.MaxDevHandle); 3428 3429 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "hba queue depth(%d), " 3430 "max chains per io(%d)\n", ioc->name, facts->RequestCredit, 3431 facts->MaxChainDepth)); 3432 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "request frame size(%d), " 3433 "reply frame size(%d)\n", ioc->name, 3434 facts->IOCRequestFrameSize * 4, facts->ReplyFrameSize * 4)); 3435 return 0; 3436} 3437 3438/** 3439 * _base_send_ioc_init - send ioc_init to firmware 3440 * @ioc: per adapter object 3441 * @sleep_flag: CAN_SLEEP or NO_SLEEP 3442 * 3443 * Returns 0 for success, non-zero for failure. 3444 */ 3445static int 3446_base_send_ioc_init(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) 3447{ 3448 Mpi2IOCInitRequest_t mpi_request; 3449 Mpi2IOCInitReply_t mpi_reply; 3450 int r; 3451 struct timeval current_time; 3452 u16 ioc_status; 3453 3454 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 3455 __func__)); 3456 3457 memset(&mpi_request, 0, sizeof(Mpi2IOCInitRequest_t)); 3458 mpi_request.Function = MPI2_FUNCTION_IOC_INIT; 3459 mpi_request.WhoInit = MPI2_WHOINIT_HOST_DRIVER; 3460 mpi_request.VF_ID = 0; /* TODO */ 3461 mpi_request.VP_ID = 0; 3462 mpi_request.MsgVersion = cpu_to_le16(MPI2_VERSION); 3463 mpi_request.HeaderVersion = cpu_to_le16(MPI2_HEADER_VERSION); 3464 3465 if (_base_is_controller_msix_enabled(ioc)) 3466 mpi_request.HostMSIxVectors = ioc->reply_queue_count; 3467 mpi_request.SystemRequestFrameSize = cpu_to_le16(ioc->request_sz/4); 3468 mpi_request.ReplyDescriptorPostQueueDepth = 3469 cpu_to_le16(ioc->reply_post_queue_depth); 3470 mpi_request.ReplyFreeQueueDepth = 3471 cpu_to_le16(ioc->reply_free_queue_depth); 3472 3473 mpi_request.SenseBufferAddressHigh = 3474 cpu_to_le32((u64)ioc->sense_dma >> 32); 3475 mpi_request.SystemReplyAddressHigh = 3476 cpu_to_le32((u64)ioc->reply_dma >> 32); 3477 mpi_request.SystemRequestFrameBaseAddress = 3478 cpu_to_le64((u64)ioc->request_dma); 3479 mpi_request.ReplyFreeQueueAddress = 3480 cpu_to_le64((u64)ioc->reply_free_dma); 3481 mpi_request.ReplyDescriptorPostQueueAddress = 3482 cpu_to_le64((u64)ioc->reply_post_free_dma); 3483 3484 3485 /* This time stamp specifies number of milliseconds 3486 * since epoch ~ midnight January 1, 1970. 3487 */ 3488 do_gettimeofday(¤t_time); 3489 mpi_request.TimeStamp = cpu_to_le64((u64)current_time.tv_sec * 1000 + 3490 (current_time.tv_usec / 1000)); 3491 3492 if (ioc->logging_level & MPT_DEBUG_INIT) { 3493 __le32 *mfp; 3494 int i; 3495 3496 mfp = (__le32 *)&mpi_request; 3497 printk(KERN_INFO "\toffset:data\n"); 3498 for (i = 0; i < sizeof(Mpi2IOCInitRequest_t)/4; i++) 3499 printk(KERN_INFO "\t[0x%02x]:%08x\n", i*4, 3500 le32_to_cpu(mfp[i])); 3501 } 3502 3503 r = _base_handshake_req_reply_wait(ioc, 3504 sizeof(Mpi2IOCInitRequest_t), (u32 *)&mpi_request, 3505 sizeof(Mpi2IOCInitReply_t), (u16 *)&mpi_reply, 10, 3506 sleep_flag); 3507 3508 if (r != 0) { 3509 printk(MPT2SAS_ERR_FMT "%s: handshake failed (r=%d)\n", 3510 ioc->name, __func__, r); 3511 return r; 3512 } 3513 3514 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK; 3515 if (ioc_status != MPI2_IOCSTATUS_SUCCESS || 3516 mpi_reply.IOCLogInfo) { 3517 printk(MPT2SAS_ERR_FMT "%s: failed\n", ioc->name, __func__); 3518 r = -EIO; 3519 } 3520 3521 return 0; 3522} 3523 3524/** 3525 * mpt2sas_port_enable_done - command completion routine for port enable 3526 * @ioc: per adapter object 3527 * @smid: system request message index 3528 * @msix_index: MSIX table index supplied by the OS 3529 * @reply: reply message frame(lower 32bit addr) 3530 * 3531 * Return 1 meaning mf should be freed from _base_interrupt 3532 * 0 means the mf is freed from this function. 3533 */ 3534u8 3535mpt2sas_port_enable_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, 3536 u32 reply) 3537{ 3538 MPI2DefaultReply_t *mpi_reply; 3539 u16 ioc_status; 3540 3541 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); 3542 if (mpi_reply && mpi_reply->Function == MPI2_FUNCTION_EVENT_ACK) 3543 return 1; 3544 3545 if (ioc->port_enable_cmds.status == MPT2_CMD_NOT_USED) 3546 return 1; 3547 3548 ioc->port_enable_cmds.status |= MPT2_CMD_COMPLETE; 3549 if (mpi_reply) { 3550 ioc->port_enable_cmds.status |= MPT2_CMD_REPLY_VALID; 3551 memcpy(ioc->port_enable_cmds.reply, mpi_reply, 3552 mpi_reply->MsgLength*4); 3553 } 3554 ioc->port_enable_cmds.status &= ~MPT2_CMD_PENDING; 3555 3556 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK; 3557 3558 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) 3559 ioc->port_enable_failed = 1; 3560 3561 if (ioc->is_driver_loading) { 3562 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) { 3563 mpt2sas_port_enable_complete(ioc); 3564 return 1; 3565 } else { 3566 ioc->start_scan_failed = ioc_status; 3567 ioc->start_scan = 0; 3568 return 1; 3569 } 3570 } 3571 complete(&ioc->port_enable_cmds.done); 3572 return 1; 3573} 3574 3575 3576/** 3577 * _base_send_port_enable - send port_enable(discovery stuff) to firmware 3578 * @ioc: per adapter object 3579 * @sleep_flag: CAN_SLEEP or NO_SLEEP 3580 * 3581 * Returns 0 for success, non-zero for failure. 3582 */ 3583static int 3584_base_send_port_enable(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) 3585{ 3586 Mpi2PortEnableRequest_t *mpi_request; 3587 Mpi2PortEnableReply_t *mpi_reply; 3588 unsigned long timeleft; 3589 int r = 0; 3590 u16 smid; 3591 u16 ioc_status; 3592 3593 printk(MPT2SAS_INFO_FMT "sending port enable !!\n", ioc->name); 3594 3595 if (ioc->port_enable_cmds.status & MPT2_CMD_PENDING) { 3596 printk(MPT2SAS_ERR_FMT "%s: internal command already in use\n", 3597 ioc->name, __func__); 3598 return -EAGAIN; 3599 } 3600 3601 smid = mpt2sas_base_get_smid(ioc, ioc->port_enable_cb_idx); 3602 if (!smid) { 3603 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", 3604 ioc->name, __func__); 3605 return -EAGAIN; 3606 } 3607 3608 ioc->port_enable_cmds.status = MPT2_CMD_PENDING; 3609 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); 3610 ioc->port_enable_cmds.smid = smid; 3611 memset(mpi_request, 0, sizeof(Mpi2PortEnableRequest_t)); 3612 mpi_request->Function = MPI2_FUNCTION_PORT_ENABLE; 3613 3614 init_completion(&ioc->port_enable_cmds.done); 3615 mpt2sas_base_put_smid_default(ioc, smid); 3616 timeleft = wait_for_completion_timeout(&ioc->port_enable_cmds.done, 3617 300*HZ); 3618 if (!(ioc->port_enable_cmds.status & MPT2_CMD_COMPLETE)) { 3619 printk(MPT2SAS_ERR_FMT "%s: timeout\n", 3620 ioc->name, __func__); 3621 _debug_dump_mf(mpi_request, 3622 sizeof(Mpi2PortEnableRequest_t)/4); 3623 if (ioc->port_enable_cmds.status & MPT2_CMD_RESET) 3624 r = -EFAULT; 3625 else 3626 r = -ETIME; 3627 goto out; 3628 } 3629 mpi_reply = ioc->port_enable_cmds.reply; 3630 3631 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK; 3632 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 3633 printk(MPT2SAS_ERR_FMT "%s: failed with (ioc_status=0x%08x)\n", 3634 ioc->name, __func__, ioc_status); 3635 r = -EFAULT; 3636 goto out; 3637 } 3638 out: 3639 ioc->port_enable_cmds.status = MPT2_CMD_NOT_USED; 3640 printk(MPT2SAS_INFO_FMT "port enable: %s\n", ioc->name, ((r == 0) ? 3641 "SUCCESS" : "FAILED")); 3642 return r; 3643} 3644 3645/** 3646 * mpt2sas_port_enable - initiate firmware discovery (don't wait for reply) 3647 * @ioc: per adapter object 3648 * 3649 * Returns 0 for success, non-zero for failure. 3650 */ 3651int 3652mpt2sas_port_enable(struct MPT2SAS_ADAPTER *ioc) 3653{ 3654 Mpi2PortEnableRequest_t *mpi_request; 3655 u16 smid; 3656 3657 printk(MPT2SAS_INFO_FMT "sending port enable !!\n", ioc->name); 3658 3659 if (ioc->port_enable_cmds.status & MPT2_CMD_PENDING) { 3660 printk(MPT2SAS_ERR_FMT "%s: internal command already in use\n", 3661 ioc->name, __func__); 3662 return -EAGAIN; 3663 } 3664 3665 smid = mpt2sas_base_get_smid(ioc, ioc->port_enable_cb_idx); 3666 if (!smid) { 3667 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", 3668 ioc->name, __func__); 3669 return -EAGAIN; 3670 } 3671 3672 ioc->port_enable_cmds.status = MPT2_CMD_PENDING; 3673 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); 3674 ioc->port_enable_cmds.smid = smid; 3675 memset(mpi_request, 0, sizeof(Mpi2PortEnableRequest_t)); 3676 mpi_request->Function = MPI2_FUNCTION_PORT_ENABLE; 3677 3678 mpt2sas_base_put_smid_default(ioc, smid); 3679 return 0; 3680} 3681 3682/** 3683 * _base_determine_wait_on_discovery - desposition 3684 * @ioc: per adapter object 3685 * 3686 * Decide whether to wait on discovery to complete. Used to either 3687 * locate boot device, or report volumes ahead of physical devices. 3688 * 3689 * Returns 1 for wait, 0 for don't wait 3690 */ 3691static int 3692_base_determine_wait_on_discovery(struct MPT2SAS_ADAPTER *ioc) 3693{ 3694 /* We wait for discovery to complete if IR firmware is loaded. 3695 * The sas topology events arrive before PD events, so we need time to 3696 * turn on the bit in ioc->pd_handles to indicate PD 3697 * Also, it maybe required to report Volumes ahead of physical 3698 * devices when MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING is set. 3699 */ 3700 if (ioc->ir_firmware) 3701 return 1; 3702 3703 /* if no Bios, then we don't need to wait */ 3704 if (!ioc->bios_pg3.BiosVersion) 3705 return 0; 3706 3707 /* Bios is present, then we drop down here. 3708 * 3709 * If there any entries in the Bios Page 2, then we wait 3710 * for discovery to complete. 3711 */ 3712 3713 /* Current Boot Device */ 3714 if ((ioc->bios_pg2.CurrentBootDeviceForm & 3715 MPI2_BIOSPAGE2_FORM_MASK) == 3716 MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED && 3717 /* Request Boot Device */ 3718 (ioc->bios_pg2.ReqBootDeviceForm & 3719 MPI2_BIOSPAGE2_FORM_MASK) == 3720 MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED && 3721 /* Alternate Request Boot Device */ 3722 (ioc->bios_pg2.ReqAltBootDeviceForm & 3723 MPI2_BIOSPAGE2_FORM_MASK) == 3724 MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED) 3725 return 0; 3726 3727 return 1; 3728} 3729 3730 3731/** 3732 * _base_unmask_events - turn on notification for this event 3733 * @ioc: per adapter object 3734 * @event: firmware event 3735 * 3736 * The mask is stored in ioc->event_masks. 3737 */ 3738static void 3739_base_unmask_events(struct MPT2SAS_ADAPTER *ioc, u16 event) 3740{ 3741 u32 desired_event; 3742 3743 if (event >= 128) 3744 return; 3745 3746 desired_event = (1 << (event % 32)); 3747 3748 if (event < 32) 3749 ioc->event_masks[0] &= ~desired_event; 3750 else if (event < 64) 3751 ioc->event_masks[1] &= ~desired_event; 3752 else if (event < 96) 3753 ioc->event_masks[2] &= ~desired_event; 3754 else if (event < 128) 3755 ioc->event_masks[3] &= ~desired_event; 3756} 3757 3758/** 3759 * _base_event_notification - send event notification 3760 * @ioc: per adapter object 3761 * @sleep_flag: CAN_SLEEP or NO_SLEEP 3762 * 3763 * Returns 0 for success, non-zero for failure. 3764 */ 3765static int 3766_base_event_notification(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) 3767{ 3768 Mpi2EventNotificationRequest_t *mpi_request; 3769 unsigned long timeleft; 3770 u16 smid; 3771 int r = 0; 3772 int i; 3773 3774 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 3775 __func__)); 3776 3777 if (ioc->base_cmds.status & MPT2_CMD_PENDING) { 3778 printk(MPT2SAS_ERR_FMT "%s: internal command already in use\n", 3779 ioc->name, __func__); 3780 return -EAGAIN; 3781 } 3782 3783 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx); 3784 if (!smid) { 3785 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", 3786 ioc->name, __func__); 3787 return -EAGAIN; 3788 } 3789 ioc->base_cmds.status = MPT2_CMD_PENDING; 3790 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); 3791 ioc->base_cmds.smid = smid; 3792 memset(mpi_request, 0, sizeof(Mpi2EventNotificationRequest_t)); 3793 mpi_request->Function = MPI2_FUNCTION_EVENT_NOTIFICATION; 3794 mpi_request->VF_ID = 0; /* TODO */ 3795 mpi_request->VP_ID = 0; 3796 for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++) 3797 mpi_request->EventMasks[i] = 3798 cpu_to_le32(ioc->event_masks[i]); 3799 init_completion(&ioc->base_cmds.done); 3800 mpt2sas_base_put_smid_default(ioc, smid); 3801 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done, 30*HZ); 3802 if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) { 3803 printk(MPT2SAS_ERR_FMT "%s: timeout\n", 3804 ioc->name, __func__); 3805 _debug_dump_mf(mpi_request, 3806 sizeof(Mpi2EventNotificationRequest_t)/4); 3807 if (ioc->base_cmds.status & MPT2_CMD_RESET) 3808 r = -EFAULT; 3809 else 3810 r = -ETIME; 3811 } else 3812 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: complete\n", 3813 ioc->name, __func__)); 3814 ioc->base_cmds.status = MPT2_CMD_NOT_USED; 3815 return r; 3816} 3817 3818/** 3819 * mpt2sas_base_validate_event_type - validating event types 3820 * @ioc: per adapter object 3821 * @event: firmware event 3822 * 3823 * This will turn on firmware event notification when application 3824 * ask for that event. We don't mask events that are already enabled. 3825 */ 3826void 3827mpt2sas_base_validate_event_type(struct MPT2SAS_ADAPTER *ioc, u32 *event_type) 3828{ 3829 int i, j; 3830 u32 event_mask, desired_event; 3831 u8 send_update_to_fw; 3832 3833 for (i = 0, send_update_to_fw = 0; i < 3834 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++) { 3835 event_mask = ~event_type[i]; 3836 desired_event = 1; 3837 for (j = 0; j < 32; j++) { 3838 if (!(event_mask & desired_event) && 3839 (ioc->event_masks[i] & desired_event)) { 3840 ioc->event_masks[i] &= ~desired_event; 3841 send_update_to_fw = 1; 3842 } 3843 desired_event = (desired_event << 1); 3844 } 3845 } 3846 3847 if (!send_update_to_fw) 3848 return; 3849 3850 mutex_lock(&ioc->base_cmds.mutex); 3851 _base_event_notification(ioc, CAN_SLEEP); 3852 mutex_unlock(&ioc->base_cmds.mutex); 3853} 3854 3855/** 3856 * _base_diag_reset - the "big hammer" start of day reset 3857 * @ioc: per adapter object 3858 * @sleep_flag: CAN_SLEEP or NO_SLEEP 3859 * 3860 * Returns 0 for success, non-zero for failure. 3861 */ 3862static int 3863_base_diag_reset(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) 3864{ 3865 u32 host_diagnostic; 3866 u32 ioc_state; 3867 u32 count; 3868 u32 hcb_size; 3869 3870 printk(MPT2SAS_INFO_FMT "sending diag reset !!\n", ioc->name); 3871 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "clear interrupts\n", 3872 ioc->name)); 3873 3874 count = 0; 3875 do { 3876 /* Write magic sequence to WriteSequence register 3877 * Loop until in diagnostic mode 3878 */ 3879 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "write magic " 3880 "sequence\n", ioc->name)); 3881 writel(MPI2_WRSEQ_FLUSH_KEY_VALUE, &ioc->chip->WriteSequence); 3882 writel(MPI2_WRSEQ_1ST_KEY_VALUE, &ioc->chip->WriteSequence); 3883 writel(MPI2_WRSEQ_2ND_KEY_VALUE, &ioc->chip->WriteSequence); 3884 writel(MPI2_WRSEQ_3RD_KEY_VALUE, &ioc->chip->WriteSequence); 3885 writel(MPI2_WRSEQ_4TH_KEY_VALUE, &ioc->chip->WriteSequence); 3886 writel(MPI2_WRSEQ_5TH_KEY_VALUE, &ioc->chip->WriteSequence); 3887 writel(MPI2_WRSEQ_6TH_KEY_VALUE, &ioc->chip->WriteSequence); 3888 3889 /* wait 100 msec */ 3890 if (sleep_flag == CAN_SLEEP) 3891 msleep(100); 3892 else 3893 mdelay(100); 3894 3895 if (count++ > 20) 3896 goto out; 3897 3898 host_diagnostic = readl(&ioc->chip->HostDiagnostic); 3899 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "wrote magic " 3900 "sequence: count(%d), host_diagnostic(0x%08x)\n", 3901 ioc->name, count, host_diagnostic)); 3902 3903 } while ((host_diagnostic & MPI2_DIAG_DIAG_WRITE_ENABLE) == 0); 3904 3905 hcb_size = readl(&ioc->chip->HCBSize); 3906 3907 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "diag reset: issued\n", 3908 ioc->name)); 3909 writel(host_diagnostic | MPI2_DIAG_RESET_ADAPTER, 3910 &ioc->chip->HostDiagnostic); 3911 3912 /* don't access any registers for 50 milliseconds */ 3913 msleep(50); 3914 3915 /* 300 second max wait */ 3916 for (count = 0; count < 3000000 ; count++) { 3917 3918 host_diagnostic = readl(&ioc->chip->HostDiagnostic); 3919 3920 if (host_diagnostic == 0xFFFFFFFF) 3921 goto out; 3922 if (!(host_diagnostic & MPI2_DIAG_RESET_ADAPTER)) 3923 break; 3924 3925 /* wait 100 msec */ 3926 if (sleep_flag == CAN_SLEEP) 3927 msleep(1); 3928 else 3929 mdelay(1); 3930 } 3931 3932 if (host_diagnostic & MPI2_DIAG_HCB_MODE) { 3933 3934 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "restart the adapter " 3935 "assuming the HCB Address points to good F/W\n", 3936 ioc->name)); 3937 host_diagnostic &= ~MPI2_DIAG_BOOT_DEVICE_SELECT_MASK; 3938 host_diagnostic |= MPI2_DIAG_BOOT_DEVICE_SELECT_HCDW; 3939 writel(host_diagnostic, &ioc->chip->HostDiagnostic); 3940 3941 drsprintk(ioc, printk(MPT2SAS_INFO_FMT 3942 "re-enable the HCDW\n", ioc->name)); 3943 writel(hcb_size | MPI2_HCB_SIZE_HCB_ENABLE, 3944 &ioc->chip->HCBSize); 3945 } 3946 3947 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "restart the adapter\n", 3948 ioc->name)); 3949 writel(host_diagnostic & ~MPI2_DIAG_HOLD_IOC_RESET, 3950 &ioc->chip->HostDiagnostic); 3951 3952 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "disable writes to the " 3953 "diagnostic register\n", ioc->name)); 3954 writel(MPI2_WRSEQ_FLUSH_KEY_VALUE, &ioc->chip->WriteSequence); 3955 3956 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "Wait for FW to go to the " 3957 "READY state\n", ioc->name)); 3958 ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY, 20, 3959 sleep_flag); 3960 if (ioc_state) { 3961 printk(MPT2SAS_ERR_FMT "%s: failed going to ready state " 3962 " (ioc_state=0x%x)\n", ioc->name, __func__, ioc_state); 3963 goto out; 3964 } 3965 3966 printk(MPT2SAS_INFO_FMT "diag reset: SUCCESS\n", ioc->name); 3967 return 0; 3968 3969 out: 3970 printk(MPT2SAS_ERR_FMT "diag reset: FAILED\n", ioc->name); 3971 return -EFAULT; 3972} 3973 3974/** 3975 * _base_make_ioc_ready - put controller in READY state 3976 * @ioc: per adapter object 3977 * @sleep_flag: CAN_SLEEP or NO_SLEEP 3978 * @type: FORCE_BIG_HAMMER or SOFT_RESET 3979 * 3980 * Returns 0 for success, non-zero for failure. 3981 */ 3982static int 3983_base_make_ioc_ready(struct MPT2SAS_ADAPTER *ioc, int sleep_flag, 3984 enum reset_type type) 3985{ 3986 u32 ioc_state; 3987 int rc; 3988 3989 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 3990 __func__)); 3991 3992 if (ioc->pci_error_recovery) 3993 return 0; 3994 3995 ioc_state = mpt2sas_base_get_iocstate(ioc, 0); 3996 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: ioc_state(0x%08x)\n", 3997 ioc->name, __func__, ioc_state)); 3998 3999 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_READY) 4000 return 0; 4001 4002 if (ioc_state & MPI2_DOORBELL_USED) { 4003 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "unexpected doorbell " 4004 "active!\n", ioc->name)); 4005 goto issue_diag_reset; 4006 } 4007 4008 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) { 4009 mpt2sas_base_fault_info(ioc, ioc_state & 4010 MPI2_DOORBELL_DATA_MASK); 4011 goto issue_diag_reset; 4012 } 4013 4014 if (type == FORCE_BIG_HAMMER) 4015 goto issue_diag_reset; 4016 4017 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_OPERATIONAL) 4018 if (!(_base_send_ioc_reset(ioc, 4019 MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET, 15, CAN_SLEEP))) { 4020 ioc->ioc_reset_count++; 4021 return 0; 4022 } 4023 4024 issue_diag_reset: 4025 rc = _base_diag_reset(ioc, CAN_SLEEP); 4026 ioc->ioc_reset_count++; 4027 return rc; 4028} 4029 4030/** 4031 * _base_make_ioc_operational - put controller in OPERATIONAL state 4032 * @ioc: per adapter object 4033 * @sleep_flag: CAN_SLEEP or NO_SLEEP 4034 * 4035 * Returns 0 for success, non-zero for failure. 4036 */ 4037static int 4038_base_make_ioc_operational(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) 4039{ 4040 int r, i; 4041 unsigned long flags; 4042 u32 reply_address; 4043 u16 smid; 4044 struct _tr_list *delayed_tr, *delayed_tr_next; 4045 u8 hide_flag; 4046 struct adapter_reply_queue *reply_q; 4047 long reply_post_free; 4048 u32 reply_post_free_sz; 4049 4050 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 4051 __func__)); 4052 4053 /* clean the delayed target reset list */ 4054 list_for_each_entry_safe(delayed_tr, delayed_tr_next, 4055 &ioc->delayed_tr_list, list) { 4056 list_del(&delayed_tr->list); 4057 kfree(delayed_tr); 4058 } 4059 4060 list_for_each_entry_safe(delayed_tr, delayed_tr_next, 4061 &ioc->delayed_tr_volume_list, list) { 4062 list_del(&delayed_tr->list); 4063 kfree(delayed_tr); 4064 } 4065 4066 /* initialize the scsi lookup free list */ 4067 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 4068 INIT_LIST_HEAD(&ioc->free_list); 4069 smid = 1; 4070 for (i = 0; i < ioc->scsiio_depth; i++, smid++) { 4071 INIT_LIST_HEAD(&ioc->scsi_lookup[i].chain_list); 4072 ioc->scsi_lookup[i].cb_idx = 0xFF; 4073 ioc->scsi_lookup[i].smid = smid; 4074 ioc->scsi_lookup[i].scmd = NULL; 4075 ioc->scsi_lookup[i].direct_io = 0; 4076 list_add_tail(&ioc->scsi_lookup[i].tracker_list, 4077 &ioc->free_list); 4078 } 4079 4080 /* hi-priority queue */ 4081 INIT_LIST_HEAD(&ioc->hpr_free_list); 4082 smid = ioc->hi_priority_smid; 4083 for (i = 0; i < ioc->hi_priority_depth; i++, smid++) { 4084 ioc->hpr_lookup[i].cb_idx = 0xFF; 4085 ioc->hpr_lookup[i].smid = smid; 4086 list_add_tail(&ioc->hpr_lookup[i].tracker_list, 4087 &ioc->hpr_free_list); 4088 } 4089 4090 /* internal queue */ 4091 INIT_LIST_HEAD(&ioc->internal_free_list); 4092 smid = ioc->internal_smid; 4093 for (i = 0; i < ioc->internal_depth; i++, smid++) { 4094 ioc->internal_lookup[i].cb_idx = 0xFF; 4095 ioc->internal_lookup[i].smid = smid; 4096 list_add_tail(&ioc->internal_lookup[i].tracker_list, 4097 &ioc->internal_free_list); 4098 } 4099 4100 /* chain pool */ 4101 INIT_LIST_HEAD(&ioc->free_chain_list); 4102 for (i = 0; i < ioc->chain_depth; i++) 4103 list_add_tail(&ioc->chain_lookup[i].tracker_list, 4104 &ioc->free_chain_list); 4105 4106 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 4107 4108 /* initialize Reply Free Queue */ 4109 for (i = 0, reply_address = (u32)ioc->reply_dma ; 4110 i < ioc->reply_free_queue_depth ; i++, reply_address += 4111 ioc->reply_sz) 4112 ioc->reply_free[i] = cpu_to_le32(reply_address); 4113 4114 /* initialize reply queues */ 4115 if (ioc->is_driver_loading) 4116 _base_assign_reply_queues(ioc); 4117 4118 /* initialize Reply Post Free Queue */ 4119 reply_post_free = (long)ioc->reply_post_free; 4120 reply_post_free_sz = ioc->reply_post_queue_depth * 4121 sizeof(Mpi2DefaultReplyDescriptor_t); 4122 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) { 4123 reply_q->reply_post_host_index = 0; 4124 reply_q->reply_post_free = (Mpi2ReplyDescriptorsUnion_t *) 4125 reply_post_free; 4126 for (i = 0; i < ioc->reply_post_queue_depth; i++) 4127 reply_q->reply_post_free[i].Words = 4128 cpu_to_le64(ULLONG_MAX); 4129 if (!_base_is_controller_msix_enabled(ioc)) 4130 goto skip_init_reply_post_free_queue; 4131 reply_post_free += reply_post_free_sz; 4132 } 4133 skip_init_reply_post_free_queue: 4134 4135 r = _base_send_ioc_init(ioc, sleep_flag); 4136 if (r) 4137 return r; 4138 4139 /* initialize reply free host index */ 4140 ioc->reply_free_host_index = ioc->reply_free_queue_depth - 1; 4141 writel(ioc->reply_free_host_index, &ioc->chip->ReplyFreeHostIndex); 4142 4143 /* initialize reply post host index */ 4144 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) { 4145 writel(reply_q->msix_index << MPI2_RPHI_MSIX_INDEX_SHIFT, 4146 &ioc->chip->ReplyPostHostIndex); 4147 if (!_base_is_controller_msix_enabled(ioc)) 4148 goto skip_init_reply_post_host_index; 4149 } 4150 4151 skip_init_reply_post_host_index: 4152 4153 _base_unmask_interrupts(ioc); 4154 4155 r = _base_event_notification(ioc, sleep_flag); 4156 if (r) 4157 return r; 4158 4159 if (sleep_flag == CAN_SLEEP) 4160 _base_static_config_pages(ioc); 4161 4162 4163 if (ioc->is_driver_loading) { 4164 if (ioc->is_warpdrive && ioc->manu_pg10.OEMIdentifier 4165 == 0x80) { 4166 hide_flag = (u8) ( 4167 le32_to_cpu(ioc->manu_pg10.OEMSpecificFlags0) & 4168 MFG_PAGE10_HIDE_SSDS_MASK); 4169 if (hide_flag != MFG_PAGE10_HIDE_SSDS_MASK) 4170 ioc->mfg_pg10_hide_flag = hide_flag; 4171 } 4172 ioc->wait_for_discovery_to_complete = 4173 _base_determine_wait_on_discovery(ioc); 4174 return r; /* scan_start and scan_finished support */ 4175 } 4176 r = _base_send_port_enable(ioc, sleep_flag); 4177 if (r) 4178 return r; 4179 4180 return r; 4181} 4182 4183/** 4184 * mpt2sas_base_free_resources - free resources controller resources (io/irq/memap) 4185 * @ioc: per adapter object 4186 * 4187 * Return nothing. 4188 */ 4189void 4190mpt2sas_base_free_resources(struct MPT2SAS_ADAPTER *ioc) 4191{ 4192 struct pci_dev *pdev = ioc->pdev; 4193 4194 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 4195 __func__)); 4196 4197 _base_mask_interrupts(ioc); 4198 ioc->shost_recovery = 1; 4199 _base_make_ioc_ready(ioc, CAN_SLEEP, SOFT_RESET); 4200 ioc->shost_recovery = 0; 4201 _base_free_irq(ioc); 4202 _base_disable_msix(ioc); 4203 if (ioc->chip_phys) 4204 iounmap(ioc->chip); 4205 ioc->chip_phys = 0; 4206 pci_release_selected_regions(ioc->pdev, ioc->bars); 4207 pci_disable_pcie_error_reporting(pdev); 4208 pci_disable_device(pdev); 4209 return; 4210} 4211 4212/** 4213 * mpt2sas_base_attach - attach controller instance 4214 * @ioc: per adapter object 4215 * 4216 * Returns 0 for success, non-zero for failure. 4217 */ 4218int 4219mpt2sas_base_attach(struct MPT2SAS_ADAPTER *ioc) 4220{ 4221 int r, i; 4222 int cpu_id, last_cpu_id = 0; 4223 4224 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 4225 __func__)); 4226 4227 /* setup cpu_msix_table */ 4228 ioc->cpu_count = num_online_cpus(); 4229 for_each_online_cpu(cpu_id) 4230 last_cpu_id = cpu_id; 4231 ioc->cpu_msix_table_sz = last_cpu_id + 1; 4232 ioc->cpu_msix_table = kzalloc(ioc->cpu_msix_table_sz, GFP_KERNEL); 4233 ioc->reply_queue_count = 1; 4234 if (!ioc->cpu_msix_table) { 4235 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "allocation for " 4236 "cpu_msix_table failed!!!\n", ioc->name)); 4237 r = -ENOMEM; 4238 goto out_free_resources; 4239 } 4240 4241 if (ioc->is_warpdrive) { 4242 ioc->reply_post_host_index = kcalloc(ioc->cpu_msix_table_sz, 4243 sizeof(resource_size_t *), GFP_KERNEL); 4244 if (!ioc->reply_post_host_index) { 4245 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "allocation " 4246 "for cpu_msix_table failed!!!\n", ioc->name)); 4247 r = -ENOMEM; 4248 goto out_free_resources; 4249 } 4250 } 4251 4252 r = mpt2sas_base_map_resources(ioc); 4253 if (r) 4254 goto out_free_resources; 4255 4256 if (ioc->is_warpdrive) { 4257 ioc->reply_post_host_index[0] = 4258 (resource_size_t *)&ioc->chip->ReplyPostHostIndex; 4259 4260 for (i = 1; i < ioc->cpu_msix_table_sz; i++) 4261 ioc->reply_post_host_index[i] = (resource_size_t *) 4262 ((u8 *)&ioc->chip->Doorbell + (0x4000 + ((i - 1) 4263 * 4))); 4264 } 4265 4266 pci_set_drvdata(ioc->pdev, ioc->shost); 4267 r = _base_get_ioc_facts(ioc, CAN_SLEEP); 4268 if (r) 4269 goto out_free_resources; 4270 4271 r = _base_make_ioc_ready(ioc, CAN_SLEEP, SOFT_RESET); 4272 if (r) 4273 goto out_free_resources; 4274 4275 ioc->pfacts = kcalloc(ioc->facts.NumberOfPorts, 4276 sizeof(struct mpt2sas_port_facts), GFP_KERNEL); 4277 if (!ioc->pfacts) { 4278 r = -ENOMEM; 4279 goto out_free_resources; 4280 } 4281 4282 for (i = 0 ; i < ioc->facts.NumberOfPorts; i++) { 4283 r = _base_get_port_facts(ioc, i, CAN_SLEEP); 4284 if (r) 4285 goto out_free_resources; 4286 } 4287 4288 r = _base_allocate_memory_pools(ioc, CAN_SLEEP); 4289 if (r) 4290 goto out_free_resources; 4291 4292 init_waitqueue_head(&ioc->reset_wq); 4293 /* allocate memory pd handle bitmask list */ 4294 ioc->pd_handles_sz = (ioc->facts.MaxDevHandle / 8); 4295 if (ioc->facts.MaxDevHandle % 8) 4296 ioc->pd_handles_sz++; 4297 ioc->pd_handles = kzalloc(ioc->pd_handles_sz, 4298 GFP_KERNEL); 4299 if (!ioc->pd_handles) { 4300 r = -ENOMEM; 4301 goto out_free_resources; 4302 } 4303 ioc->blocking_handles = kzalloc(ioc->pd_handles_sz, 4304 GFP_KERNEL); 4305 if (!ioc->blocking_handles) { 4306 r = -ENOMEM; 4307 goto out_free_resources; 4308 } 4309 ioc->fwfault_debug = mpt2sas_fwfault_debug; 4310 4311 /* base internal command bits */ 4312 mutex_init(&ioc->base_cmds.mutex); 4313 ioc->base_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL); 4314 ioc->base_cmds.status = MPT2_CMD_NOT_USED; 4315 4316 /* port_enable command bits */ 4317 ioc->port_enable_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL); 4318 ioc->port_enable_cmds.status = MPT2_CMD_NOT_USED; 4319 4320 /* transport internal command bits */ 4321 ioc->transport_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL); 4322 ioc->transport_cmds.status = MPT2_CMD_NOT_USED; 4323 mutex_init(&ioc->transport_cmds.mutex); 4324 4325 /* scsih internal command bits */ 4326 ioc->scsih_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL); 4327 ioc->scsih_cmds.status = MPT2_CMD_NOT_USED; 4328 mutex_init(&ioc->scsih_cmds.mutex); 4329 4330 /* task management internal command bits */ 4331 ioc->tm_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL); 4332 ioc->tm_cmds.status = MPT2_CMD_NOT_USED; 4333 mutex_init(&ioc->tm_cmds.mutex); 4334 4335 /* config page internal command bits */ 4336 ioc->config_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL); 4337 ioc->config_cmds.status = MPT2_CMD_NOT_USED; 4338 mutex_init(&ioc->config_cmds.mutex); 4339 4340 /* ctl module internal command bits */ 4341 ioc->ctl_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL); 4342 ioc->ctl_cmds.sense = kzalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL); 4343 ioc->ctl_cmds.status = MPT2_CMD_NOT_USED; 4344 mutex_init(&ioc->ctl_cmds.mutex); 4345 4346 if (!ioc->base_cmds.reply || !ioc->transport_cmds.reply || 4347 !ioc->scsih_cmds.reply || !ioc->tm_cmds.reply || 4348 !ioc->config_cmds.reply || !ioc->ctl_cmds.reply || 4349 !ioc->ctl_cmds.sense) { 4350 r = -ENOMEM; 4351 goto out_free_resources; 4352 } 4353 4354 if (!ioc->base_cmds.reply || !ioc->transport_cmds.reply || 4355 !ioc->scsih_cmds.reply || !ioc->tm_cmds.reply || 4356 !ioc->config_cmds.reply || !ioc->ctl_cmds.reply) { 4357 r = -ENOMEM; 4358 goto out_free_resources; 4359 } 4360 4361 for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++) 4362 ioc->event_masks[i] = -1; 4363 4364 /* here we enable the events we care about */ 4365 _base_unmask_events(ioc, MPI2_EVENT_SAS_DISCOVERY); 4366 _base_unmask_events(ioc, MPI2_EVENT_SAS_BROADCAST_PRIMITIVE); 4367 _base_unmask_events(ioc, MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST); 4368 _base_unmask_events(ioc, MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE); 4369 _base_unmask_events(ioc, MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE); 4370 _base_unmask_events(ioc, MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST); 4371 _base_unmask_events(ioc, MPI2_EVENT_IR_VOLUME); 4372 _base_unmask_events(ioc, MPI2_EVENT_IR_PHYSICAL_DISK); 4373 _base_unmask_events(ioc, MPI2_EVENT_IR_OPERATION_STATUS); 4374 _base_unmask_events(ioc, MPI2_EVENT_LOG_ENTRY_ADDED); 4375 r = _base_make_ioc_operational(ioc, CAN_SLEEP); 4376 if (r) 4377 goto out_free_resources; 4378 4379 if (missing_delay[0] != -1 && missing_delay[1] != -1) 4380 _base_update_missing_delay(ioc, missing_delay[0], 4381 missing_delay[1]); 4382 4383 return 0; 4384 4385 out_free_resources: 4386 4387 ioc->remove_host = 1; 4388 mpt2sas_base_free_resources(ioc); 4389 _base_release_memory_pools(ioc); 4390 pci_set_drvdata(ioc->pdev, NULL); 4391 kfree(ioc->cpu_msix_table); 4392 if (ioc->is_warpdrive) 4393 kfree(ioc->reply_post_host_index); 4394 kfree(ioc->pd_handles); 4395 kfree(ioc->blocking_handles); 4396 kfree(ioc->tm_cmds.reply); 4397 kfree(ioc->transport_cmds.reply); 4398 kfree(ioc->scsih_cmds.reply); 4399 kfree(ioc->config_cmds.reply); 4400 kfree(ioc->base_cmds.reply); 4401 kfree(ioc->port_enable_cmds.reply); 4402 kfree(ioc->ctl_cmds.reply); 4403 kfree(ioc->ctl_cmds.sense); 4404 kfree(ioc->pfacts); 4405 ioc->ctl_cmds.reply = NULL; 4406 ioc->base_cmds.reply = NULL; 4407 ioc->tm_cmds.reply = NULL; 4408 ioc->scsih_cmds.reply = NULL; 4409 ioc->transport_cmds.reply = NULL; 4410 ioc->config_cmds.reply = NULL; 4411 ioc->pfacts = NULL; 4412 return r; 4413} 4414 4415 4416/** 4417 * mpt2sas_base_detach - remove controller instance 4418 * @ioc: per adapter object 4419 * 4420 * Return nothing. 4421 */ 4422void 4423mpt2sas_base_detach(struct MPT2SAS_ADAPTER *ioc) 4424{ 4425 4426 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 4427 __func__)); 4428 4429 mpt2sas_base_stop_watchdog(ioc); 4430 mpt2sas_base_free_resources(ioc); 4431 _base_release_memory_pools(ioc); 4432 pci_set_drvdata(ioc->pdev, NULL); 4433 kfree(ioc->cpu_msix_table); 4434 if (ioc->is_warpdrive) 4435 kfree(ioc->reply_post_host_index); 4436 kfree(ioc->pd_handles); 4437 kfree(ioc->blocking_handles); 4438 kfree(ioc->pfacts); 4439 kfree(ioc->ctl_cmds.reply); 4440 kfree(ioc->ctl_cmds.sense); 4441 kfree(ioc->base_cmds.reply); 4442 kfree(ioc->port_enable_cmds.reply); 4443 kfree(ioc->tm_cmds.reply); 4444 kfree(ioc->transport_cmds.reply); 4445 kfree(ioc->scsih_cmds.reply); 4446 kfree(ioc->config_cmds.reply); 4447} 4448 4449/** 4450 * _base_reset_handler - reset callback handler (for base) 4451 * @ioc: per adapter object 4452 * @reset_phase: phase 4453 * 4454 * The handler for doing any required cleanup or initialization. 4455 * 4456 * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET, 4457 * MPT2_IOC_DONE_RESET 4458 * 4459 * Return nothing. 4460 */ 4461static void 4462_base_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase) 4463{ 4464 mpt2sas_scsih_reset_handler(ioc, reset_phase); 4465 mpt2sas_ctl_reset_handler(ioc, reset_phase); 4466 switch (reset_phase) { 4467 case MPT2_IOC_PRE_RESET: 4468 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " 4469 "MPT2_IOC_PRE_RESET\n", ioc->name, __func__)); 4470 break; 4471 case MPT2_IOC_AFTER_RESET: 4472 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " 4473 "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__)); 4474 if (ioc->transport_cmds.status & MPT2_CMD_PENDING) { 4475 ioc->transport_cmds.status |= MPT2_CMD_RESET; 4476 mpt2sas_base_free_smid(ioc, ioc->transport_cmds.smid); 4477 complete(&ioc->transport_cmds.done); 4478 } 4479 if (ioc->base_cmds.status & MPT2_CMD_PENDING) { 4480 ioc->base_cmds.status |= MPT2_CMD_RESET; 4481 mpt2sas_base_free_smid(ioc, ioc->base_cmds.smid); 4482 complete(&ioc->base_cmds.done); 4483 } 4484 if (ioc->port_enable_cmds.status & MPT2_CMD_PENDING) { 4485 ioc->port_enable_failed = 1; 4486 ioc->port_enable_cmds.status |= MPT2_CMD_RESET; 4487 mpt2sas_base_free_smid(ioc, ioc->port_enable_cmds.smid); 4488 if (ioc->is_driver_loading) { 4489 ioc->start_scan_failed = 4490 MPI2_IOCSTATUS_INTERNAL_ERROR; 4491 ioc->start_scan = 0; 4492 ioc->port_enable_cmds.status = 4493 MPT2_CMD_NOT_USED; 4494 } else 4495 complete(&ioc->port_enable_cmds.done); 4496 4497 } 4498 if (ioc->config_cmds.status & MPT2_CMD_PENDING) { 4499 ioc->config_cmds.status |= MPT2_CMD_RESET; 4500 mpt2sas_base_free_smid(ioc, ioc->config_cmds.smid); 4501 ioc->config_cmds.smid = USHRT_MAX; 4502 complete(&ioc->config_cmds.done); 4503 } 4504 break; 4505 case MPT2_IOC_DONE_RESET: 4506 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " 4507 "MPT2_IOC_DONE_RESET\n", ioc->name, __func__)); 4508 break; 4509 } 4510} 4511 4512/** 4513 * _wait_for_commands_to_complete - reset controller 4514 * @ioc: Pointer to MPT_ADAPTER structure 4515 * @sleep_flag: CAN_SLEEP or NO_SLEEP 4516 * 4517 * This function waiting(3s) for all pending commands to complete 4518 * prior to putting controller in reset. 4519 */ 4520static void 4521_wait_for_commands_to_complete(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) 4522{ 4523 u32 ioc_state; 4524 unsigned long flags; 4525 u16 i; 4526 4527 ioc->pending_io_count = 0; 4528 if (sleep_flag != CAN_SLEEP) 4529 return; 4530 4531 ioc_state = mpt2sas_base_get_iocstate(ioc, 0); 4532 if ((ioc_state & MPI2_IOC_STATE_MASK) != MPI2_IOC_STATE_OPERATIONAL) 4533 return; 4534 4535 /* pending command count */ 4536 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 4537 for (i = 0; i < ioc->scsiio_depth; i++) 4538 if (ioc->scsi_lookup[i].cb_idx != 0xFF) 4539 ioc->pending_io_count++; 4540 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 4541 4542 if (!ioc->pending_io_count) 4543 return; 4544 4545 /* wait for pending commands to complete */ 4546 wait_event_timeout(ioc->reset_wq, ioc->pending_io_count == 0, 10 * HZ); 4547} 4548 4549/** 4550 * mpt2sas_base_hard_reset_handler - reset controller 4551 * @ioc: Pointer to MPT_ADAPTER structure 4552 * @sleep_flag: CAN_SLEEP or NO_SLEEP 4553 * @type: FORCE_BIG_HAMMER or SOFT_RESET 4554 * 4555 * Returns 0 for success, non-zero for failure. 4556 */ 4557int 4558mpt2sas_base_hard_reset_handler(struct MPT2SAS_ADAPTER *ioc, int sleep_flag, 4559 enum reset_type type) 4560{ 4561 int r; 4562 unsigned long flags; 4563 4564 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name, 4565 __func__)); 4566 4567 if (ioc->pci_error_recovery) { 4568 printk(MPT2SAS_ERR_FMT "%s: pci error recovery reset\n", 4569 ioc->name, __func__); 4570 r = 0; 4571 goto out_unlocked; 4572 } 4573 4574 if (mpt2sas_fwfault_debug) 4575 mpt2sas_halt_firmware(ioc); 4576 4577 /* TODO - What we really should be doing is pulling 4578 * out all the code associated with NO_SLEEP; its never used. 4579 * That is legacy code from mpt fusion driver, ported over. 4580 * I will leave this BUG_ON here for now till its been resolved. 4581 */ 4582 BUG_ON(sleep_flag == NO_SLEEP); 4583 4584 /* wait for an active reset in progress to complete */ 4585 if (!mutex_trylock(&ioc->reset_in_progress_mutex)) { 4586 do { 4587 ssleep(1); 4588 } while (ioc->shost_recovery == 1); 4589 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit\n", ioc->name, 4590 __func__)); 4591 return ioc->ioc_reset_in_progress_status; 4592 } 4593 4594 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); 4595 ioc->shost_recovery = 1; 4596 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); 4597 4598 _base_reset_handler(ioc, MPT2_IOC_PRE_RESET); 4599 _wait_for_commands_to_complete(ioc, sleep_flag); 4600 _base_mask_interrupts(ioc); 4601 r = _base_make_ioc_ready(ioc, sleep_flag, type); 4602 if (r) 4603 goto out; 4604 _base_reset_handler(ioc, MPT2_IOC_AFTER_RESET); 4605 4606 /* If this hard reset is called while port enable is active, then 4607 * there is no reason to call make_ioc_operational 4608 */ 4609 if (ioc->is_driver_loading && ioc->port_enable_failed) { 4610 ioc->remove_host = 1; 4611 r = -EFAULT; 4612 goto out; 4613 } 4614 r = _base_make_ioc_operational(ioc, sleep_flag); 4615 if (!r) 4616 _base_reset_handler(ioc, MPT2_IOC_DONE_RESET); 4617 out: 4618 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: %s\n", 4619 ioc->name, __func__, ((r == 0) ? "SUCCESS" : "FAILED"))); 4620 4621 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); 4622 ioc->ioc_reset_in_progress_status = r; 4623 ioc->shost_recovery = 0; 4624 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); 4625 mutex_unlock(&ioc->reset_in_progress_mutex); 4626 4627 out_unlocked: 4628 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit\n", ioc->name, 4629 __func__)); 4630 return r; 4631} 4632