mpt2sas_base.c revision 148124d9310f3870fb016bd2637057841d5b7705
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) 2007-2012 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 mpt2sas_fwfault_debug; 84MODULE_PARM_DESC(mpt2sas_fwfault_debug, " enable detection of firmware fault " 85 "and halt firmware - (default=0)"); 86 87static int disable_discovery = -1; 88module_param(disable_discovery, int, 0); 89MODULE_PARM_DESC(disable_discovery, " disable discovery "); 90 91/** 92 * _scsih_set_fwfault_debug - global setting of ioc->fwfault_debug. 93 * 94 */ 95static int 96_scsih_set_fwfault_debug(const char *val, struct kernel_param *kp) 97{ 98 int ret = param_set_int(val, kp); 99 struct MPT2SAS_ADAPTER *ioc; 100 101 if (ret) 102 return ret; 103 104 printk(KERN_INFO "setting fwfault_debug(%d)\n", mpt2sas_fwfault_debug); 105 list_for_each_entry(ioc, &mpt2sas_ioc_list, list) 106 ioc->fwfault_debug = mpt2sas_fwfault_debug; 107 return 0; 108} 109 110module_param_call(mpt2sas_fwfault_debug, _scsih_set_fwfault_debug, 111 param_get_int, &mpt2sas_fwfault_debug, 0644); 112 113/** 114 * mpt2sas_remove_dead_ioc_func - kthread context to remove dead ioc 115 * @arg: input argument, used to derive ioc 116 * 117 * Return 0 if controller is removed from pci subsystem. 118 * Return -1 for other case. 119 */ 120static int mpt2sas_remove_dead_ioc_func(void *arg) 121{ 122 struct MPT2SAS_ADAPTER *ioc = (struct MPT2SAS_ADAPTER *)arg; 123 struct pci_dev *pdev; 124 125 if ((ioc == NULL)) 126 return -1; 127 128 pdev = ioc->pdev; 129 if ((pdev == NULL)) 130 return -1; 131 pci_stop_and_remove_bus_device(pdev); 132 return 0; 133} 134 135 136/** 137 * _base_fault_reset_work - workq handling ioc fault conditions 138 * @work: input argument, used to derive ioc 139 * Context: sleep. 140 * 141 * Return nothing. 142 */ 143static void 144_base_fault_reset_work(struct work_struct *work) 145{ 146 struct MPT2SAS_ADAPTER *ioc = 147 container_of(work, struct MPT2SAS_ADAPTER, fault_reset_work.work); 148 unsigned long flags; 149 u32 doorbell; 150 int rc; 151 struct task_struct *p; 152 153 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); 154 if (ioc->shost_recovery || ioc->pci_error_recovery) 155 goto rearm_timer; 156 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); 157 158 doorbell = mpt2sas_base_get_iocstate(ioc, 0); 159 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_MASK) { 160 printk(MPT2SAS_INFO_FMT "%s : SAS host is non-operational !!!!\n", 161 ioc->name, __func__); 162 163 /* It may be possible that EEH recovery can resolve some of 164 * pci bus failure issues rather removing the dead ioc function 165 * by considering controller is in a non-operational state. So 166 * here priority is given to the EEH recovery. If it doesn't 167 * not resolve this issue, mpt2sas driver will consider this 168 * controller to non-operational state and remove the dead ioc 169 * function. 170 */ 171 if (ioc->non_operational_loop++ < 5) { 172 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, 173 flags); 174 goto rearm_timer; 175 } 176 177 /* 178 * Call _scsih_flush_pending_cmds callback so that we flush all 179 * pending commands back to OS. This call is required to aovid 180 * deadlock at block layer. Dead IOC will fail to do diag reset, 181 * and this call is safe since dead ioc will never return any 182 * command back from HW. 183 */ 184 ioc->schedule_dead_ioc_flush_running_cmds(ioc); 185 /* 186 * Set remove_host flag early since kernel thread will 187 * take some time to execute. 188 */ 189 ioc->remove_host = 1; 190 /*Remove the Dead Host */ 191 p = kthread_run(mpt2sas_remove_dead_ioc_func, ioc, 192 "mpt2sas_dead_ioc_%d", ioc->id); 193 if (IS_ERR(p)) { 194 printk(MPT2SAS_ERR_FMT 195 "%s: Running mpt2sas_dead_ioc thread failed !!!!\n", 196 ioc->name, __func__); 197 } else { 198 printk(MPT2SAS_ERR_FMT 199 "%s: Running mpt2sas_dead_ioc thread success !!!!\n", 200 ioc->name, __func__); 201 } 202 203 return; /* don't rearm timer */ 204 } 205 206 ioc->non_operational_loop = 0; 207 208 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) { 209 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, 210 FORCE_BIG_HAMMER); 211 printk(MPT2SAS_WARN_FMT "%s: hard reset: %s\n", ioc->name, 212 __func__, (rc == 0) ? "success" : "failed"); 213 doorbell = mpt2sas_base_get_iocstate(ioc, 0); 214 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) 215 mpt2sas_base_fault_info(ioc, doorbell & 216 MPI2_DOORBELL_DATA_MASK); 217 } 218 219 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); 220 rearm_timer: 221 if (ioc->fault_reset_work_q) 222 queue_delayed_work(ioc->fault_reset_work_q, 223 &ioc->fault_reset_work, 224 msecs_to_jiffies(FAULT_POLLING_INTERVAL)); 225 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); 226} 227 228/** 229 * mpt2sas_base_start_watchdog - start the fault_reset_work_q 230 * @ioc: per adapter object 231 * Context: sleep. 232 * 233 * Return nothing. 234 */ 235void 236mpt2sas_base_start_watchdog(struct MPT2SAS_ADAPTER *ioc) 237{ 238 unsigned long flags; 239 240 if (ioc->fault_reset_work_q) 241 return; 242 243 /* initialize fault polling */ 244 INIT_DELAYED_WORK(&ioc->fault_reset_work, _base_fault_reset_work); 245 snprintf(ioc->fault_reset_work_q_name, 246 sizeof(ioc->fault_reset_work_q_name), "poll_%d_status", ioc->id); 247 ioc->fault_reset_work_q = 248 create_singlethread_workqueue(ioc->fault_reset_work_q_name); 249 if (!ioc->fault_reset_work_q) { 250 printk(MPT2SAS_ERR_FMT "%s: failed (line=%d)\n", 251 ioc->name, __func__, __LINE__); 252 return; 253 } 254 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); 255 if (ioc->fault_reset_work_q) 256 queue_delayed_work(ioc->fault_reset_work_q, 257 &ioc->fault_reset_work, 258 msecs_to_jiffies(FAULT_POLLING_INTERVAL)); 259 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); 260} 261 262/** 263 * mpt2sas_base_stop_watchdog - stop the fault_reset_work_q 264 * @ioc: per adapter object 265 * Context: sleep. 266 * 267 * Return nothing. 268 */ 269void 270mpt2sas_base_stop_watchdog(struct MPT2SAS_ADAPTER *ioc) 271{ 272 unsigned long flags; 273 struct workqueue_struct *wq; 274 275 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); 276 wq = ioc->fault_reset_work_q; 277 ioc->fault_reset_work_q = NULL; 278 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); 279 if (wq) { 280 if (!cancel_delayed_work(&ioc->fault_reset_work)) 281 flush_workqueue(wq); 282 destroy_workqueue(wq); 283 } 284} 285 286/** 287 * mpt2sas_base_fault_info - verbose translation of firmware FAULT code 288 * @ioc: per adapter object 289 * @fault_code: fault code 290 * 291 * Return nothing. 292 */ 293void 294mpt2sas_base_fault_info(struct MPT2SAS_ADAPTER *ioc , u16 fault_code) 295{ 296 printk(MPT2SAS_ERR_FMT "fault_state(0x%04x)!\n", 297 ioc->name, fault_code); 298} 299 300/** 301 * mpt2sas_halt_firmware - halt's mpt controller firmware 302 * @ioc: per adapter object 303 * 304 * For debugging timeout related issues. Writing 0xCOFFEE00 305 * to the doorbell register will halt controller firmware. With 306 * the purpose to stop both driver and firmware, the enduser can 307 * obtain a ring buffer from controller UART. 308 */ 309void 310mpt2sas_halt_firmware(struct MPT2SAS_ADAPTER *ioc) 311{ 312 u32 doorbell; 313 314 if (!ioc->fwfault_debug) 315 return; 316 317 dump_stack(); 318 319 doorbell = readl(&ioc->chip->Doorbell); 320 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) 321 mpt2sas_base_fault_info(ioc , doorbell); 322 else { 323 writel(0xC0FFEE00, &ioc->chip->Doorbell); 324 printk(MPT2SAS_ERR_FMT "Firmware is halted due to command " 325 "timeout\n", ioc->name); 326 } 327 328 panic("panic in %s\n", __func__); 329} 330 331#ifdef CONFIG_SCSI_MPT2SAS_LOGGING 332/** 333 * _base_sas_ioc_info - verbose translation of the ioc status 334 * @ioc: per adapter object 335 * @mpi_reply: reply mf payload returned from firmware 336 * @request_hdr: request mf 337 * 338 * Return nothing. 339 */ 340static void 341_base_sas_ioc_info(struct MPT2SAS_ADAPTER *ioc, MPI2DefaultReply_t *mpi_reply, 342 MPI2RequestHeader_t *request_hdr) 343{ 344 u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & 345 MPI2_IOCSTATUS_MASK; 346 char *desc = NULL; 347 u16 frame_sz; 348 char *func_str = NULL; 349 350 /* SCSI_IO, RAID_PASS are handled from _scsih_scsi_ioc_info */ 351 if (request_hdr->Function == MPI2_FUNCTION_SCSI_IO_REQUEST || 352 request_hdr->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH || 353 request_hdr->Function == MPI2_FUNCTION_EVENT_NOTIFICATION) 354 return; 355 356 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE) 357 return; 358 359 switch (ioc_status) { 360 361/**************************************************************************** 362* Common IOCStatus values for all replies 363****************************************************************************/ 364 365 case MPI2_IOCSTATUS_INVALID_FUNCTION: 366 desc = "invalid function"; 367 break; 368 case MPI2_IOCSTATUS_BUSY: 369 desc = "busy"; 370 break; 371 case MPI2_IOCSTATUS_INVALID_SGL: 372 desc = "invalid sgl"; 373 break; 374 case MPI2_IOCSTATUS_INTERNAL_ERROR: 375 desc = "internal error"; 376 break; 377 case MPI2_IOCSTATUS_INVALID_VPID: 378 desc = "invalid vpid"; 379 break; 380 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES: 381 desc = "insufficient resources"; 382 break; 383 case MPI2_IOCSTATUS_INVALID_FIELD: 384 desc = "invalid field"; 385 break; 386 case MPI2_IOCSTATUS_INVALID_STATE: 387 desc = "invalid state"; 388 break; 389 case MPI2_IOCSTATUS_OP_STATE_NOT_SUPPORTED: 390 desc = "op state not supported"; 391 break; 392 393/**************************************************************************** 394* Config IOCStatus values 395****************************************************************************/ 396 397 case MPI2_IOCSTATUS_CONFIG_INVALID_ACTION: 398 desc = "config invalid action"; 399 break; 400 case MPI2_IOCSTATUS_CONFIG_INVALID_TYPE: 401 desc = "config invalid type"; 402 break; 403 case MPI2_IOCSTATUS_CONFIG_INVALID_PAGE: 404 desc = "config invalid page"; 405 break; 406 case MPI2_IOCSTATUS_CONFIG_INVALID_DATA: 407 desc = "config invalid data"; 408 break; 409 case MPI2_IOCSTATUS_CONFIG_NO_DEFAULTS: 410 desc = "config no defaults"; 411 break; 412 case MPI2_IOCSTATUS_CONFIG_CANT_COMMIT: 413 desc = "config cant commit"; 414 break; 415 416/**************************************************************************** 417* SCSI IO Reply 418****************************************************************************/ 419 420 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR: 421 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE: 422 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE: 423 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN: 424 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN: 425 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR: 426 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR: 427 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED: 428 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: 429 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED: 430 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED: 431 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED: 432 break; 433 434/**************************************************************************** 435* For use by SCSI Initiator and SCSI Target end-to-end data protection 436****************************************************************************/ 437 438 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR: 439 desc = "eedp guard error"; 440 break; 441 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR: 442 desc = "eedp ref tag error"; 443 break; 444 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR: 445 desc = "eedp app tag error"; 446 break; 447 448/**************************************************************************** 449* SCSI Target values 450****************************************************************************/ 451 452 case MPI2_IOCSTATUS_TARGET_INVALID_IO_INDEX: 453 desc = "target invalid io index"; 454 break; 455 case MPI2_IOCSTATUS_TARGET_ABORTED: 456 desc = "target aborted"; 457 break; 458 case MPI2_IOCSTATUS_TARGET_NO_CONN_RETRYABLE: 459 desc = "target no conn retryable"; 460 break; 461 case MPI2_IOCSTATUS_TARGET_NO_CONNECTION: 462 desc = "target no connection"; 463 break; 464 case MPI2_IOCSTATUS_TARGET_XFER_COUNT_MISMATCH: 465 desc = "target xfer count mismatch"; 466 break; 467 case MPI2_IOCSTATUS_TARGET_DATA_OFFSET_ERROR: 468 desc = "target data offset error"; 469 break; 470 case MPI2_IOCSTATUS_TARGET_TOO_MUCH_WRITE_DATA: 471 desc = "target too much write data"; 472 break; 473 case MPI2_IOCSTATUS_TARGET_IU_TOO_SHORT: 474 desc = "target iu too short"; 475 break; 476 case MPI2_IOCSTATUS_TARGET_ACK_NAK_TIMEOUT: 477 desc = "target ack nak timeout"; 478 break; 479 case MPI2_IOCSTATUS_TARGET_NAK_RECEIVED: 480 desc = "target nak received"; 481 break; 482 483/**************************************************************************** 484* Serial Attached SCSI values 485****************************************************************************/ 486 487 case MPI2_IOCSTATUS_SAS_SMP_REQUEST_FAILED: 488 desc = "smp request failed"; 489 break; 490 case MPI2_IOCSTATUS_SAS_SMP_DATA_OVERRUN: 491 desc = "smp data overrun"; 492 break; 493 494/**************************************************************************** 495* Diagnostic Buffer Post / Diagnostic Release values 496****************************************************************************/ 497 498 case MPI2_IOCSTATUS_DIAGNOSTIC_RELEASED: 499 desc = "diagnostic released"; 500 break; 501 default: 502 break; 503 } 504 505 if (!desc) 506 return; 507 508 switch (request_hdr->Function) { 509 case MPI2_FUNCTION_CONFIG: 510 frame_sz = sizeof(Mpi2ConfigRequest_t) + ioc->sge_size; 511 func_str = "config_page"; 512 break; 513 case MPI2_FUNCTION_SCSI_TASK_MGMT: 514 frame_sz = sizeof(Mpi2SCSITaskManagementRequest_t); 515 func_str = "task_mgmt"; 516 break; 517 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL: 518 frame_sz = sizeof(Mpi2SasIoUnitControlRequest_t); 519 func_str = "sas_iounit_ctl"; 520 break; 521 case MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR: 522 frame_sz = sizeof(Mpi2SepRequest_t); 523 func_str = "enclosure"; 524 break; 525 case MPI2_FUNCTION_IOC_INIT: 526 frame_sz = sizeof(Mpi2IOCInitRequest_t); 527 func_str = "ioc_init"; 528 break; 529 case MPI2_FUNCTION_PORT_ENABLE: 530 frame_sz = sizeof(Mpi2PortEnableRequest_t); 531 func_str = "port_enable"; 532 break; 533 case MPI2_FUNCTION_SMP_PASSTHROUGH: 534 frame_sz = sizeof(Mpi2SmpPassthroughRequest_t) + ioc->sge_size; 535 func_str = "smp_passthru"; 536 break; 537 default: 538 frame_sz = 32; 539 func_str = "unknown"; 540 break; 541 } 542 543 printk(MPT2SAS_WARN_FMT "ioc_status: %s(0x%04x), request(0x%p)," 544 " (%s)\n", ioc->name, desc, ioc_status, request_hdr, func_str); 545 546 _debug_dump_mf(request_hdr, frame_sz/4); 547} 548 549/** 550 * _base_display_event_data - verbose translation of firmware asyn events 551 * @ioc: per adapter object 552 * @mpi_reply: reply mf payload returned from firmware 553 * 554 * Return nothing. 555 */ 556static void 557_base_display_event_data(struct MPT2SAS_ADAPTER *ioc, 558 Mpi2EventNotificationReply_t *mpi_reply) 559{ 560 char *desc = NULL; 561 u16 event; 562 563 if (!(ioc->logging_level & MPT_DEBUG_EVENTS)) 564 return; 565 566 event = le16_to_cpu(mpi_reply->Event); 567 568 switch (event) { 569 case MPI2_EVENT_LOG_DATA: 570 desc = "Log Data"; 571 break; 572 case MPI2_EVENT_STATE_CHANGE: 573 desc = "Status Change"; 574 break; 575 case MPI2_EVENT_HARD_RESET_RECEIVED: 576 desc = "Hard Reset Received"; 577 break; 578 case MPI2_EVENT_EVENT_CHANGE: 579 desc = "Event Change"; 580 break; 581 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE: 582 desc = "Device Status Change"; 583 break; 584 case MPI2_EVENT_IR_OPERATION_STATUS: 585 if (!ioc->hide_ir_msg) 586 desc = "IR Operation Status"; 587 break; 588 case MPI2_EVENT_SAS_DISCOVERY: 589 { 590 Mpi2EventDataSasDiscovery_t *event_data = 591 (Mpi2EventDataSasDiscovery_t *)mpi_reply->EventData; 592 printk(MPT2SAS_INFO_FMT "Discovery: (%s)", ioc->name, 593 (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ? 594 "start" : "stop"); 595 if (event_data->DiscoveryStatus) 596 printk("discovery_status(0x%08x)", 597 le32_to_cpu(event_data->DiscoveryStatus)); 598 printk("\n"); 599 return; 600 } 601 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE: 602 desc = "SAS Broadcast Primitive"; 603 break; 604 case MPI2_EVENT_SAS_INIT_DEVICE_STATUS_CHANGE: 605 desc = "SAS Init Device Status Change"; 606 break; 607 case MPI2_EVENT_SAS_INIT_TABLE_OVERFLOW: 608 desc = "SAS Init Table Overflow"; 609 break; 610 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST: 611 desc = "SAS Topology Change List"; 612 break; 613 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE: 614 desc = "SAS Enclosure Device Status Change"; 615 break; 616 case MPI2_EVENT_IR_VOLUME: 617 if (!ioc->hide_ir_msg) 618 desc = "IR Volume"; 619 break; 620 case MPI2_EVENT_IR_PHYSICAL_DISK: 621 if (!ioc->hide_ir_msg) 622 desc = "IR Physical Disk"; 623 break; 624 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST: 625 if (!ioc->hide_ir_msg) 626 desc = "IR Configuration Change List"; 627 break; 628 case MPI2_EVENT_LOG_ENTRY_ADDED: 629 if (!ioc->hide_ir_msg) 630 desc = "Log Entry Added"; 631 break; 632 } 633 634 if (!desc) 635 return; 636 637 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, desc); 638} 639#endif 640 641/** 642 * _base_sas_log_info - verbose translation of firmware log info 643 * @ioc: per adapter object 644 * @log_info: log info 645 * 646 * Return nothing. 647 */ 648static void 649_base_sas_log_info(struct MPT2SAS_ADAPTER *ioc , u32 log_info) 650{ 651 union loginfo_type { 652 u32 loginfo; 653 struct { 654 u32 subcode:16; 655 u32 code:8; 656 u32 originator:4; 657 u32 bus_type:4; 658 } dw; 659 }; 660 union loginfo_type sas_loginfo; 661 char *originator_str = NULL; 662 663 sas_loginfo.loginfo = log_info; 664 if (sas_loginfo.dw.bus_type != 3 /*SAS*/) 665 return; 666 667 /* each nexus loss loginfo */ 668 if (log_info == 0x31170000) 669 return; 670 671 /* eat the loginfos associated with task aborts */ 672 if (ioc->ignore_loginfos && (log_info == 0x30050000 || log_info == 673 0x31140000 || log_info == 0x31130000)) 674 return; 675 676 switch (sas_loginfo.dw.originator) { 677 case 0: 678 originator_str = "IOP"; 679 break; 680 case 1: 681 originator_str = "PL"; 682 break; 683 case 2: 684 if (!ioc->hide_ir_msg) 685 originator_str = "IR"; 686 else 687 originator_str = "WarpDrive"; 688 break; 689 } 690 691 printk(MPT2SAS_WARN_FMT "log_info(0x%08x): originator(%s), " 692 "code(0x%02x), sub_code(0x%04x)\n", ioc->name, log_info, 693 originator_str, sas_loginfo.dw.code, 694 sas_loginfo.dw.subcode); 695} 696 697/** 698 * _base_display_reply_info - 699 * @ioc: per adapter object 700 * @smid: system request message index 701 * @msix_index: MSIX table index supplied by the OS 702 * @reply: reply message frame(lower 32bit addr) 703 * 704 * Return nothing. 705 */ 706static void 707_base_display_reply_info(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, 708 u32 reply) 709{ 710 MPI2DefaultReply_t *mpi_reply; 711 u16 ioc_status; 712 713 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); 714 if (unlikely(!mpi_reply)) { 715 printk(MPT2SAS_ERR_FMT "mpi_reply not valid at %s:%d/%s()!\n", 716 ioc->name, __FILE__, __LINE__, __func__); 717 return; 718 } 719 ioc_status = le16_to_cpu(mpi_reply->IOCStatus); 720#ifdef CONFIG_SCSI_MPT2SAS_LOGGING 721 if ((ioc_status & MPI2_IOCSTATUS_MASK) && 722 (ioc->logging_level & MPT_DEBUG_REPLY)) { 723 _base_sas_ioc_info(ioc , mpi_reply, 724 mpt2sas_base_get_msg_frame(ioc, smid)); 725 } 726#endif 727 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE) 728 _base_sas_log_info(ioc, le32_to_cpu(mpi_reply->IOCLogInfo)); 729} 730 731/** 732 * mpt2sas_base_done - base internal command completion routine 733 * @ioc: per adapter object 734 * @smid: system request message index 735 * @msix_index: MSIX table index supplied by the OS 736 * @reply: reply message frame(lower 32bit addr) 737 * 738 * Return 1 meaning mf should be freed from _base_interrupt 739 * 0 means the mf is freed from this function. 740 */ 741u8 742mpt2sas_base_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, 743 u32 reply) 744{ 745 MPI2DefaultReply_t *mpi_reply; 746 747 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); 748 if (mpi_reply && mpi_reply->Function == MPI2_FUNCTION_EVENT_ACK) 749 return 1; 750 751 if (ioc->base_cmds.status == MPT2_CMD_NOT_USED) 752 return 1; 753 754 ioc->base_cmds.status |= MPT2_CMD_COMPLETE; 755 if (mpi_reply) { 756 ioc->base_cmds.status |= MPT2_CMD_REPLY_VALID; 757 memcpy(ioc->base_cmds.reply, mpi_reply, mpi_reply->MsgLength*4); 758 } 759 ioc->base_cmds.status &= ~MPT2_CMD_PENDING; 760 761 complete(&ioc->base_cmds.done); 762 return 1; 763} 764 765/** 766 * _base_async_event - main callback handler for firmware asyn events 767 * @ioc: per adapter object 768 * @msix_index: MSIX table index supplied by the OS 769 * @reply: reply message frame(lower 32bit addr) 770 * 771 * Return 1 meaning mf should be freed from _base_interrupt 772 * 0 means the mf is freed from this function. 773 */ 774static u8 775_base_async_event(struct MPT2SAS_ADAPTER *ioc, u8 msix_index, u32 reply) 776{ 777 Mpi2EventNotificationReply_t *mpi_reply; 778 Mpi2EventAckRequest_t *ack_request; 779 u16 smid; 780 781 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); 782 if (!mpi_reply) 783 return 1; 784 if (mpi_reply->Function != MPI2_FUNCTION_EVENT_NOTIFICATION) 785 return 1; 786#ifdef CONFIG_SCSI_MPT2SAS_LOGGING 787 _base_display_event_data(ioc, mpi_reply); 788#endif 789 if (!(mpi_reply->AckRequired & MPI2_EVENT_NOTIFICATION_ACK_REQUIRED)) 790 goto out; 791 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx); 792 if (!smid) { 793 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", 794 ioc->name, __func__); 795 goto out; 796 } 797 798 ack_request = mpt2sas_base_get_msg_frame(ioc, smid); 799 memset(ack_request, 0, sizeof(Mpi2EventAckRequest_t)); 800 ack_request->Function = MPI2_FUNCTION_EVENT_ACK; 801 ack_request->Event = mpi_reply->Event; 802 ack_request->EventContext = mpi_reply->EventContext; 803 ack_request->VF_ID = 0; /* TODO */ 804 ack_request->VP_ID = 0; 805 mpt2sas_base_put_smid_default(ioc, smid); 806 807 out: 808 809 /* scsih callback handler */ 810 mpt2sas_scsih_event_callback(ioc, msix_index, reply); 811 812 /* ctl callback handler */ 813 mpt2sas_ctl_event_callback(ioc, msix_index, reply); 814 815 return 1; 816} 817 818/** 819 * _base_get_cb_idx - obtain the callback index 820 * @ioc: per adapter object 821 * @smid: system request message index 822 * 823 * Return callback index. 824 */ 825static u8 826_base_get_cb_idx(struct MPT2SAS_ADAPTER *ioc, u16 smid) 827{ 828 int i; 829 u8 cb_idx; 830 831 if (smid < ioc->hi_priority_smid) { 832 i = smid - 1; 833 cb_idx = ioc->scsi_lookup[i].cb_idx; 834 } else if (smid < ioc->internal_smid) { 835 i = smid - ioc->hi_priority_smid; 836 cb_idx = ioc->hpr_lookup[i].cb_idx; 837 } else if (smid <= ioc->hba_queue_depth) { 838 i = smid - ioc->internal_smid; 839 cb_idx = ioc->internal_lookup[i].cb_idx; 840 } else 841 cb_idx = 0xFF; 842 return cb_idx; 843} 844 845/** 846 * _base_mask_interrupts - disable interrupts 847 * @ioc: per adapter object 848 * 849 * Disabling ResetIRQ, Reply and Doorbell Interrupts 850 * 851 * Return nothing. 852 */ 853static void 854_base_mask_interrupts(struct MPT2SAS_ADAPTER *ioc) 855{ 856 u32 him_register; 857 858 ioc->mask_interrupts = 1; 859 him_register = readl(&ioc->chip->HostInterruptMask); 860 him_register |= MPI2_HIM_DIM + MPI2_HIM_RIM + MPI2_HIM_RESET_IRQ_MASK; 861 writel(him_register, &ioc->chip->HostInterruptMask); 862 readl(&ioc->chip->HostInterruptMask); 863} 864 865/** 866 * _base_unmask_interrupts - enable interrupts 867 * @ioc: per adapter object 868 * 869 * Enabling only Reply Interrupts 870 * 871 * Return nothing. 872 */ 873static void 874_base_unmask_interrupts(struct MPT2SAS_ADAPTER *ioc) 875{ 876 u32 him_register; 877 878 him_register = readl(&ioc->chip->HostInterruptMask); 879 him_register &= ~MPI2_HIM_RIM; 880 writel(him_register, &ioc->chip->HostInterruptMask); 881 ioc->mask_interrupts = 0; 882} 883 884union reply_descriptor { 885 u64 word; 886 struct { 887 u32 low; 888 u32 high; 889 } u; 890}; 891 892/** 893 * _base_interrupt - MPT adapter (IOC) specific interrupt handler. 894 * @irq: irq number (not used) 895 * @bus_id: bus identifier cookie == pointer to MPT_ADAPTER structure 896 * @r: pt_regs pointer (not used) 897 * 898 * Return IRQ_HANDLE if processed, else IRQ_NONE. 899 */ 900static irqreturn_t 901_base_interrupt(int irq, void *bus_id) 902{ 903 struct adapter_reply_queue *reply_q = bus_id; 904 union reply_descriptor rd; 905 u32 completed_cmds; 906 u8 request_desript_type; 907 u16 smid; 908 u8 cb_idx; 909 u32 reply; 910 u8 msix_index = reply_q->msix_index; 911 struct MPT2SAS_ADAPTER *ioc = reply_q->ioc; 912 Mpi2ReplyDescriptorsUnion_t *rpf; 913 u8 rc; 914 915 if (ioc->mask_interrupts) 916 return IRQ_NONE; 917 918 if (!atomic_add_unless(&reply_q->busy, 1, 1)) 919 return IRQ_NONE; 920 921 rpf = &reply_q->reply_post_free[reply_q->reply_post_host_index]; 922 request_desript_type = rpf->Default.ReplyFlags 923 & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK; 924 if (request_desript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED) { 925 atomic_dec(&reply_q->busy); 926 return IRQ_NONE; 927 } 928 929 completed_cmds = 0; 930 cb_idx = 0xFF; 931 do { 932 rd.word = le64_to_cpu(rpf->Words); 933 if (rd.u.low == UINT_MAX || rd.u.high == UINT_MAX) 934 goto out; 935 reply = 0; 936 smid = le16_to_cpu(rpf->Default.DescriptorTypeDependent1); 937 if (request_desript_type == 938 MPI2_RPY_DESCRIPT_FLAGS_ADDRESS_REPLY) { 939 reply = le32_to_cpu 940 (rpf->AddressReply.ReplyFrameAddress); 941 if (reply > ioc->reply_dma_max_address || 942 reply < ioc->reply_dma_min_address) 943 reply = 0; 944 } else if (request_desript_type == 945 MPI2_RPY_DESCRIPT_FLAGS_TARGET_COMMAND_BUFFER) 946 goto next; 947 else if (request_desript_type == 948 MPI2_RPY_DESCRIPT_FLAGS_TARGETASSIST_SUCCESS) 949 goto next; 950 if (smid) { 951 cb_idx = _base_get_cb_idx(ioc, smid); 952 if ((likely(cb_idx < MPT_MAX_CALLBACKS)) 953 && (likely(mpt_callbacks[cb_idx] != NULL))) { 954 rc = mpt_callbacks[cb_idx](ioc, smid, 955 msix_index, reply); 956 if (reply) 957 _base_display_reply_info(ioc, smid, 958 msix_index, reply); 959 if (rc) 960 mpt2sas_base_free_smid(ioc, smid); 961 } 962 } 963 if (!smid) 964 _base_async_event(ioc, msix_index, reply); 965 966 /* reply free queue handling */ 967 if (reply) { 968 ioc->reply_free_host_index = 969 (ioc->reply_free_host_index == 970 (ioc->reply_free_queue_depth - 1)) ? 971 0 : ioc->reply_free_host_index + 1; 972 ioc->reply_free[ioc->reply_free_host_index] = 973 cpu_to_le32(reply); 974 wmb(); 975 writel(ioc->reply_free_host_index, 976 &ioc->chip->ReplyFreeHostIndex); 977 } 978 979 next: 980 981 rpf->Words = cpu_to_le64(ULLONG_MAX); 982 reply_q->reply_post_host_index = 983 (reply_q->reply_post_host_index == 984 (ioc->reply_post_queue_depth - 1)) ? 0 : 985 reply_q->reply_post_host_index + 1; 986 request_desript_type = 987 reply_q->reply_post_free[reply_q->reply_post_host_index]. 988 Default.ReplyFlags & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK; 989 completed_cmds++; 990 if (request_desript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED) 991 goto out; 992 if (!reply_q->reply_post_host_index) 993 rpf = reply_q->reply_post_free; 994 else 995 rpf++; 996 } while (1); 997 998 out: 999 1000 if (!completed_cmds) { 1001 atomic_dec(&reply_q->busy); 1002 return IRQ_NONE; 1003 } 1004 wmb(); 1005 if (ioc->is_warpdrive) { 1006 writel(reply_q->reply_post_host_index, 1007 ioc->reply_post_host_index[msix_index]); 1008 atomic_dec(&reply_q->busy); 1009 return IRQ_HANDLED; 1010 } 1011 writel(reply_q->reply_post_host_index | (msix_index << 1012 MPI2_RPHI_MSIX_INDEX_SHIFT), &ioc->chip->ReplyPostHostIndex); 1013 atomic_dec(&reply_q->busy); 1014 return IRQ_HANDLED; 1015} 1016 1017/** 1018 * _base_is_controller_msix_enabled - is controller support muli-reply queues 1019 * @ioc: per adapter object 1020 * 1021 */ 1022static inline int 1023_base_is_controller_msix_enabled(struct MPT2SAS_ADAPTER *ioc) 1024{ 1025 return (ioc->facts.IOCCapabilities & 1026 MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX) && ioc->msix_enable; 1027} 1028 1029/** 1030 * mpt2sas_base_flush_reply_queues - flushing the MSIX reply queues 1031 * @ioc: per adapter object 1032 * Context: ISR conext 1033 * 1034 * Called when a Task Management request has completed. We want 1035 * to flush the other reply queues so all the outstanding IO has been 1036 * completed back to OS before we process the TM completetion. 1037 * 1038 * Return nothing. 1039 */ 1040void 1041mpt2sas_base_flush_reply_queues(struct MPT2SAS_ADAPTER *ioc) 1042{ 1043 struct adapter_reply_queue *reply_q; 1044 1045 /* If MSIX capability is turned off 1046 * then multi-queues are not enabled 1047 */ 1048 if (!_base_is_controller_msix_enabled(ioc)) 1049 return; 1050 1051 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) { 1052 if (ioc->shost_recovery) 1053 return; 1054 /* TMs are on msix_index == 0 */ 1055 if (reply_q->msix_index == 0) 1056 continue; 1057 _base_interrupt(reply_q->vector, (void *)reply_q); 1058 } 1059} 1060 1061/** 1062 * mpt2sas_base_release_callback_handler - clear interrupt callback handler 1063 * @cb_idx: callback index 1064 * 1065 * Return nothing. 1066 */ 1067void 1068mpt2sas_base_release_callback_handler(u8 cb_idx) 1069{ 1070 mpt_callbacks[cb_idx] = NULL; 1071} 1072 1073/** 1074 * mpt2sas_base_register_callback_handler - obtain index for the interrupt callback handler 1075 * @cb_func: callback function 1076 * 1077 * Returns cb_func. 1078 */ 1079u8 1080mpt2sas_base_register_callback_handler(MPT_CALLBACK cb_func) 1081{ 1082 u8 cb_idx; 1083 1084 for (cb_idx = MPT_MAX_CALLBACKS-1; cb_idx; cb_idx--) 1085 if (mpt_callbacks[cb_idx] == NULL) 1086 break; 1087 1088 mpt_callbacks[cb_idx] = cb_func; 1089 return cb_idx; 1090} 1091 1092/** 1093 * mpt2sas_base_initialize_callback_handler - initialize the interrupt callback handler 1094 * 1095 * Return nothing. 1096 */ 1097void 1098mpt2sas_base_initialize_callback_handler(void) 1099{ 1100 u8 cb_idx; 1101 1102 for (cb_idx = 0; cb_idx < MPT_MAX_CALLBACKS; cb_idx++) 1103 mpt2sas_base_release_callback_handler(cb_idx); 1104} 1105 1106/** 1107 * mpt2sas_base_build_zero_len_sge - build zero length sg entry 1108 * @ioc: per adapter object 1109 * @paddr: virtual address for SGE 1110 * 1111 * Create a zero length scatter gather entry to insure the IOCs hardware has 1112 * something to use if the target device goes brain dead and tries 1113 * to send data even when none is asked for. 1114 * 1115 * Return nothing. 1116 */ 1117void 1118mpt2sas_base_build_zero_len_sge(struct MPT2SAS_ADAPTER *ioc, void *paddr) 1119{ 1120 u32 flags_length = (u32)((MPI2_SGE_FLAGS_LAST_ELEMENT | 1121 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST | 1122 MPI2_SGE_FLAGS_SIMPLE_ELEMENT) << 1123 MPI2_SGE_FLAGS_SHIFT); 1124 ioc->base_add_sg_single(paddr, flags_length, -1); 1125} 1126 1127/** 1128 * _base_add_sg_single_32 - Place a simple 32 bit SGE at address pAddr. 1129 * @paddr: virtual address for SGE 1130 * @flags_length: SGE flags and data transfer length 1131 * @dma_addr: Physical address 1132 * 1133 * Return nothing. 1134 */ 1135static void 1136_base_add_sg_single_32(void *paddr, u32 flags_length, dma_addr_t dma_addr) 1137{ 1138 Mpi2SGESimple32_t *sgel = paddr; 1139 1140 flags_length |= (MPI2_SGE_FLAGS_32_BIT_ADDRESSING | 1141 MPI2_SGE_FLAGS_SYSTEM_ADDRESS) << MPI2_SGE_FLAGS_SHIFT; 1142 sgel->FlagsLength = cpu_to_le32(flags_length); 1143 sgel->Address = cpu_to_le32(dma_addr); 1144} 1145 1146 1147/** 1148 * _base_add_sg_single_64 - Place a simple 64 bit SGE at address pAddr. 1149 * @paddr: virtual address for SGE 1150 * @flags_length: SGE flags and data transfer length 1151 * @dma_addr: Physical address 1152 * 1153 * Return nothing. 1154 */ 1155static void 1156_base_add_sg_single_64(void *paddr, u32 flags_length, dma_addr_t dma_addr) 1157{ 1158 Mpi2SGESimple64_t *sgel = paddr; 1159 1160 flags_length |= (MPI2_SGE_FLAGS_64_BIT_ADDRESSING | 1161 MPI2_SGE_FLAGS_SYSTEM_ADDRESS) << MPI2_SGE_FLAGS_SHIFT; 1162 sgel->FlagsLength = cpu_to_le32(flags_length); 1163 sgel->Address = cpu_to_le64(dma_addr); 1164} 1165 1166#define convert_to_kb(x) ((x) << (PAGE_SHIFT - 10)) 1167 1168/** 1169 * _base_config_dma_addressing - set dma addressing 1170 * @ioc: per adapter object 1171 * @pdev: PCI device struct 1172 * 1173 * Returns 0 for success, non-zero for failure. 1174 */ 1175static int 1176_base_config_dma_addressing(struct MPT2SAS_ADAPTER *ioc, struct pci_dev *pdev) 1177{ 1178 struct sysinfo s; 1179 char *desc = NULL; 1180 1181 if (sizeof(dma_addr_t) > 4) { 1182 const uint64_t required_mask = 1183 dma_get_required_mask(&pdev->dev); 1184 if ((required_mask > DMA_BIT_MASK(32)) && !pci_set_dma_mask(pdev, 1185 DMA_BIT_MASK(64)) && !pci_set_consistent_dma_mask(pdev, 1186 DMA_BIT_MASK(64))) { 1187 ioc->base_add_sg_single = &_base_add_sg_single_64; 1188 ioc->sge_size = sizeof(Mpi2SGESimple64_t); 1189 desc = "64"; 1190 goto out; 1191 } 1192 } 1193 1194 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) 1195 && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) { 1196 ioc->base_add_sg_single = &_base_add_sg_single_32; 1197 ioc->sge_size = sizeof(Mpi2SGESimple32_t); 1198 desc = "32"; 1199 } else 1200 return -ENODEV; 1201 1202 out: 1203 si_meminfo(&s); 1204 printk(MPT2SAS_INFO_FMT "%s BIT PCI BUS DMA ADDRESSING SUPPORTED, " 1205 "total mem (%ld kB)\n", ioc->name, desc, convert_to_kb(s.totalram)); 1206 1207 return 0; 1208} 1209 1210/** 1211 * _base_check_enable_msix - checks MSIX capabable. 1212 * @ioc: per adapter object 1213 * 1214 * Check to see if card is capable of MSIX, and set number 1215 * of available msix vectors 1216 */ 1217static int 1218_base_check_enable_msix(struct MPT2SAS_ADAPTER *ioc) 1219{ 1220 int base; 1221 u16 message_control; 1222 1223 1224 /* Check whether controller SAS2008 B0 controller, 1225 if it is SAS2008 B0 controller use IO-APIC instead of MSIX */ 1226 if (ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2008 && 1227 ioc->pdev->revision == 0x01) { 1228 return -EINVAL; 1229 } 1230 1231 base = pci_find_capability(ioc->pdev, PCI_CAP_ID_MSIX); 1232 if (!base) { 1233 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "msix not " 1234 "supported\n", ioc->name)); 1235 return -EINVAL; 1236 } 1237 1238 /* get msix vector count */ 1239 /* NUMA_IO not supported for older controllers */ 1240 if (ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2004 || 1241 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2008 || 1242 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2108_1 || 1243 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2108_2 || 1244 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2108_3 || 1245 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2116_1 || 1246 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2116_2) 1247 ioc->msix_vector_count = 1; 1248 else { 1249 pci_read_config_word(ioc->pdev, base + 2, &message_control); 1250 ioc->msix_vector_count = (message_control & 0x3FF) + 1; 1251 } 1252 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "msix is supported, " 1253 "vector_count(%d)\n", ioc->name, ioc->msix_vector_count)); 1254 1255 return 0; 1256} 1257 1258/** 1259 * _base_free_irq - free irq 1260 * @ioc: per adapter object 1261 * 1262 * Freeing respective reply_queue from the list. 1263 */ 1264static void 1265_base_free_irq(struct MPT2SAS_ADAPTER *ioc) 1266{ 1267 struct adapter_reply_queue *reply_q, *next; 1268 1269 if (list_empty(&ioc->reply_queue_list)) 1270 return; 1271 1272 list_for_each_entry_safe(reply_q, next, &ioc->reply_queue_list, list) { 1273 list_del(&reply_q->list); 1274 synchronize_irq(reply_q->vector); 1275 free_irq(reply_q->vector, reply_q); 1276 kfree(reply_q); 1277 } 1278} 1279 1280/** 1281 * _base_request_irq - request irq 1282 * @ioc: per adapter object 1283 * @index: msix index into vector table 1284 * @vector: irq vector 1285 * 1286 * Inserting respective reply_queue into the list. 1287 */ 1288static int 1289_base_request_irq(struct MPT2SAS_ADAPTER *ioc, u8 index, u32 vector) 1290{ 1291 struct adapter_reply_queue *reply_q; 1292 int r; 1293 1294 reply_q = kzalloc(sizeof(struct adapter_reply_queue), GFP_KERNEL); 1295 if (!reply_q) { 1296 printk(MPT2SAS_ERR_FMT "unable to allocate memory %d!\n", 1297 ioc->name, (int)sizeof(struct adapter_reply_queue)); 1298 return -ENOMEM; 1299 } 1300 reply_q->ioc = ioc; 1301 reply_q->msix_index = index; 1302 reply_q->vector = vector; 1303 atomic_set(&reply_q->busy, 0); 1304 if (ioc->msix_enable) 1305 snprintf(reply_q->name, MPT_NAME_LENGTH, "%s%d-msix%d", 1306 MPT2SAS_DRIVER_NAME, ioc->id, index); 1307 else 1308 snprintf(reply_q->name, MPT_NAME_LENGTH, "%s%d", 1309 MPT2SAS_DRIVER_NAME, ioc->id); 1310 r = request_irq(vector, _base_interrupt, IRQF_SHARED, reply_q->name, 1311 reply_q); 1312 if (r) { 1313 printk(MPT2SAS_ERR_FMT "unable to allocate interrupt %d!\n", 1314 reply_q->name, vector); 1315 kfree(reply_q); 1316 return -EBUSY; 1317 } 1318 1319 INIT_LIST_HEAD(&reply_q->list); 1320 list_add_tail(&reply_q->list, &ioc->reply_queue_list); 1321 return 0; 1322} 1323 1324/** 1325 * _base_assign_reply_queues - assigning msix index for each cpu 1326 * @ioc: per adapter object 1327 * 1328 * The enduser would need to set the affinity via /proc/irq/#/smp_affinity 1329 * 1330 * It would nice if we could call irq_set_affinity, however it is not 1331 * an exported symbol 1332 */ 1333static void 1334_base_assign_reply_queues(struct MPT2SAS_ADAPTER *ioc) 1335{ 1336 struct adapter_reply_queue *reply_q; 1337 int cpu_id; 1338 int cpu_grouping, loop, grouping, grouping_mod; 1339 1340 if (!_base_is_controller_msix_enabled(ioc)) 1341 return; 1342 1343 memset(ioc->cpu_msix_table, 0, ioc->cpu_msix_table_sz); 1344 /* when there are more cpus than available msix vectors, 1345 * then group cpus togeather on same irq 1346 */ 1347 if (ioc->cpu_count > ioc->msix_vector_count) { 1348 grouping = ioc->cpu_count / ioc->msix_vector_count; 1349 grouping_mod = ioc->cpu_count % ioc->msix_vector_count; 1350 if (grouping < 2 || (grouping == 2 && !grouping_mod)) 1351 cpu_grouping = 2; 1352 else if (grouping < 4 || (grouping == 4 && !grouping_mod)) 1353 cpu_grouping = 4; 1354 else if (grouping < 8 || (grouping == 8 && !grouping_mod)) 1355 cpu_grouping = 8; 1356 else 1357 cpu_grouping = 16; 1358 } else 1359 cpu_grouping = 0; 1360 1361 loop = 0; 1362 reply_q = list_entry(ioc->reply_queue_list.next, 1363 struct adapter_reply_queue, list); 1364 for_each_online_cpu(cpu_id) { 1365 if (!cpu_grouping) { 1366 ioc->cpu_msix_table[cpu_id] = reply_q->msix_index; 1367 reply_q = list_entry(reply_q->list.next, 1368 struct adapter_reply_queue, list); 1369 } else { 1370 if (loop < cpu_grouping) { 1371 ioc->cpu_msix_table[cpu_id] = 1372 reply_q->msix_index; 1373 loop++; 1374 } else { 1375 reply_q = list_entry(reply_q->list.next, 1376 struct adapter_reply_queue, list); 1377 ioc->cpu_msix_table[cpu_id] = 1378 reply_q->msix_index; 1379 loop = 1; 1380 } 1381 } 1382 } 1383} 1384 1385/** 1386 * _base_disable_msix - disables msix 1387 * @ioc: per adapter object 1388 * 1389 */ 1390static void 1391_base_disable_msix(struct MPT2SAS_ADAPTER *ioc) 1392{ 1393 if (ioc->msix_enable) { 1394 pci_disable_msix(ioc->pdev); 1395 ioc->msix_enable = 0; 1396 } 1397} 1398 1399/** 1400 * _base_enable_msix - enables msix, failback to io_apic 1401 * @ioc: per adapter object 1402 * 1403 */ 1404static int 1405_base_enable_msix(struct MPT2SAS_ADAPTER *ioc) 1406{ 1407 struct msix_entry *entries, *a; 1408 int r; 1409 int i; 1410 u8 try_msix = 0; 1411 1412 INIT_LIST_HEAD(&ioc->reply_queue_list); 1413 1414 if (msix_disable == -1 || msix_disable == 0) 1415 try_msix = 1; 1416 1417 if (!try_msix) 1418 goto try_ioapic; 1419 1420 if (_base_check_enable_msix(ioc) != 0) 1421 goto try_ioapic; 1422 1423 ioc->reply_queue_count = min_t(int, ioc->cpu_count, 1424 ioc->msix_vector_count); 1425 1426 entries = kcalloc(ioc->reply_queue_count, sizeof(struct msix_entry), 1427 GFP_KERNEL); 1428 if (!entries) { 1429 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "kcalloc " 1430 "failed @ at %s:%d/%s() !!!\n", ioc->name, __FILE__, 1431 __LINE__, __func__)); 1432 goto try_ioapic; 1433 } 1434 1435 for (i = 0, a = entries; i < ioc->reply_queue_count; i++, a++) 1436 a->entry = i; 1437 1438 r = pci_enable_msix(ioc->pdev, entries, ioc->reply_queue_count); 1439 if (r) { 1440 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "pci_enable_msix " 1441 "failed (r=%d) !!!\n", ioc->name, r)); 1442 kfree(entries); 1443 goto try_ioapic; 1444 } 1445 1446 ioc->msix_enable = 1; 1447 for (i = 0, a = entries; i < ioc->reply_queue_count; i++, a++) { 1448 r = _base_request_irq(ioc, i, a->vector); 1449 if (r) { 1450 _base_free_irq(ioc); 1451 _base_disable_msix(ioc); 1452 kfree(entries); 1453 goto try_ioapic; 1454 } 1455 } 1456 1457 kfree(entries); 1458 return 0; 1459 1460/* failback to io_apic interrupt routing */ 1461 try_ioapic: 1462 1463 r = _base_request_irq(ioc, 0, ioc->pdev->irq); 1464 1465 return r; 1466} 1467 1468/** 1469 * mpt2sas_base_map_resources - map in controller resources (io/irq/memap) 1470 * @ioc: per adapter object 1471 * 1472 * Returns 0 for success, non-zero for failure. 1473 */ 1474int 1475mpt2sas_base_map_resources(struct MPT2SAS_ADAPTER *ioc) 1476{ 1477 struct pci_dev *pdev = ioc->pdev; 1478 u32 memap_sz; 1479 u32 pio_sz; 1480 int i, r = 0; 1481 u64 pio_chip = 0; 1482 u64 chip_phys = 0; 1483 struct adapter_reply_queue *reply_q; 1484 1485 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", 1486 ioc->name, __func__)); 1487 1488 ioc->bars = pci_select_bars(pdev, IORESOURCE_MEM); 1489 if (pci_enable_device_mem(pdev)) { 1490 printk(MPT2SAS_WARN_FMT "pci_enable_device_mem: " 1491 "failed\n", ioc->name); 1492 return -ENODEV; 1493 } 1494 1495 1496 if (pci_request_selected_regions(pdev, ioc->bars, 1497 MPT2SAS_DRIVER_NAME)) { 1498 printk(MPT2SAS_WARN_FMT "pci_request_selected_regions: " 1499 "failed\n", ioc->name); 1500 r = -ENODEV; 1501 goto out_fail; 1502 } 1503 1504 /* AER (Advanced Error Reporting) hooks */ 1505 pci_enable_pcie_error_reporting(pdev); 1506 1507 pci_set_master(pdev); 1508 1509 if (_base_config_dma_addressing(ioc, pdev) != 0) { 1510 printk(MPT2SAS_WARN_FMT "no suitable DMA mask for %s\n", 1511 ioc->name, pci_name(pdev)); 1512 r = -ENODEV; 1513 goto out_fail; 1514 } 1515 1516 for (i = 0, memap_sz = 0, pio_sz = 0 ; i < DEVICE_COUNT_RESOURCE; i++) { 1517 if (pci_resource_flags(pdev, i) & IORESOURCE_IO) { 1518 if (pio_sz) 1519 continue; 1520 pio_chip = (u64)pci_resource_start(pdev, i); 1521 pio_sz = pci_resource_len(pdev, i); 1522 } else { 1523 if (memap_sz) 1524 continue; 1525 /* verify memory resource is valid before using */ 1526 if (pci_resource_flags(pdev, i) & IORESOURCE_MEM) { 1527 ioc->chip_phys = pci_resource_start(pdev, i); 1528 chip_phys = (u64)ioc->chip_phys; 1529 memap_sz = pci_resource_len(pdev, i); 1530 ioc->chip = ioremap(ioc->chip_phys, memap_sz); 1531 if (ioc->chip == NULL) { 1532 printk(MPT2SAS_ERR_FMT "unable to map " 1533 "adapter memory!\n", ioc->name); 1534 r = -EINVAL; 1535 goto out_fail; 1536 } 1537 } 1538 } 1539 } 1540 1541 _base_mask_interrupts(ioc); 1542 r = _base_enable_msix(ioc); 1543 if (r) 1544 goto out_fail; 1545 1546 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) 1547 printk(MPT2SAS_INFO_FMT "%s: IRQ %d\n", 1548 reply_q->name, ((ioc->msix_enable) ? "PCI-MSI-X enabled" : 1549 "IO-APIC enabled"), reply_q->vector); 1550 1551 printk(MPT2SAS_INFO_FMT "iomem(0x%016llx), mapped(0x%p), size(%d)\n", 1552 ioc->name, (unsigned long long)chip_phys, ioc->chip, memap_sz); 1553 printk(MPT2SAS_INFO_FMT "ioport(0x%016llx), size(%d)\n", 1554 ioc->name, (unsigned long long)pio_chip, pio_sz); 1555 1556 /* Save PCI configuration state for recovery from PCI AER/EEH errors */ 1557 pci_save_state(pdev); 1558 1559 return 0; 1560 1561 out_fail: 1562 if (ioc->chip_phys) 1563 iounmap(ioc->chip); 1564 ioc->chip_phys = 0; 1565 pci_release_selected_regions(ioc->pdev, ioc->bars); 1566 pci_disable_pcie_error_reporting(pdev); 1567 pci_disable_device(pdev); 1568 return r; 1569} 1570 1571/** 1572 * mpt2sas_base_get_msg_frame - obtain request mf pointer 1573 * @ioc: per adapter object 1574 * @smid: system request message index(smid zero is invalid) 1575 * 1576 * Returns virt pointer to message frame. 1577 */ 1578void * 1579mpt2sas_base_get_msg_frame(struct MPT2SAS_ADAPTER *ioc, u16 smid) 1580{ 1581 return (void *)(ioc->request + (smid * ioc->request_sz)); 1582} 1583 1584/** 1585 * mpt2sas_base_get_sense_buffer - obtain a sense buffer assigned to a mf request 1586 * @ioc: per adapter object 1587 * @smid: system request message index 1588 * 1589 * Returns virt pointer to sense buffer. 1590 */ 1591void * 1592mpt2sas_base_get_sense_buffer(struct MPT2SAS_ADAPTER *ioc, u16 smid) 1593{ 1594 return (void *)(ioc->sense + ((smid - 1) * SCSI_SENSE_BUFFERSIZE)); 1595} 1596 1597/** 1598 * mpt2sas_base_get_sense_buffer_dma - obtain a sense buffer assigned to a mf request 1599 * @ioc: per adapter object 1600 * @smid: system request message index 1601 * 1602 * Returns phys pointer to the low 32bit address of the sense buffer. 1603 */ 1604__le32 1605mpt2sas_base_get_sense_buffer_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid) 1606{ 1607 return cpu_to_le32(ioc->sense_dma + 1608 ((smid - 1) * SCSI_SENSE_BUFFERSIZE)); 1609} 1610 1611/** 1612 * mpt2sas_base_get_reply_virt_addr - obtain reply frames virt address 1613 * @ioc: per adapter object 1614 * @phys_addr: lower 32 physical addr of the reply 1615 * 1616 * Converts 32bit lower physical addr into a virt address. 1617 */ 1618void * 1619mpt2sas_base_get_reply_virt_addr(struct MPT2SAS_ADAPTER *ioc, u32 phys_addr) 1620{ 1621 if (!phys_addr) 1622 return NULL; 1623 return ioc->reply + (phys_addr - (u32)ioc->reply_dma); 1624} 1625 1626/** 1627 * mpt2sas_base_get_smid - obtain a free smid from internal queue 1628 * @ioc: per adapter object 1629 * @cb_idx: callback index 1630 * 1631 * Returns smid (zero is invalid) 1632 */ 1633u16 1634mpt2sas_base_get_smid(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx) 1635{ 1636 unsigned long flags; 1637 struct request_tracker *request; 1638 u16 smid; 1639 1640 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 1641 if (list_empty(&ioc->internal_free_list)) { 1642 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1643 printk(MPT2SAS_ERR_FMT "%s: smid not available\n", 1644 ioc->name, __func__); 1645 return 0; 1646 } 1647 1648 request = list_entry(ioc->internal_free_list.next, 1649 struct request_tracker, tracker_list); 1650 request->cb_idx = cb_idx; 1651 smid = request->smid; 1652 list_del(&request->tracker_list); 1653 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1654 return smid; 1655} 1656 1657/** 1658 * mpt2sas_base_get_smid_scsiio - obtain a free smid from scsiio queue 1659 * @ioc: per adapter object 1660 * @cb_idx: callback index 1661 * @scmd: pointer to scsi command object 1662 * 1663 * Returns smid (zero is invalid) 1664 */ 1665u16 1666mpt2sas_base_get_smid_scsiio(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx, 1667 struct scsi_cmnd *scmd) 1668{ 1669 unsigned long flags; 1670 struct scsiio_tracker *request; 1671 u16 smid; 1672 1673 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 1674 if (list_empty(&ioc->free_list)) { 1675 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1676 printk(MPT2SAS_ERR_FMT "%s: smid not available\n", 1677 ioc->name, __func__); 1678 return 0; 1679 } 1680 1681 request = list_entry(ioc->free_list.next, 1682 struct scsiio_tracker, tracker_list); 1683 request->scmd = scmd; 1684 request->cb_idx = cb_idx; 1685 smid = request->smid; 1686 list_del(&request->tracker_list); 1687 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1688 return smid; 1689} 1690 1691/** 1692 * mpt2sas_base_get_smid_hpr - obtain a free smid from hi-priority queue 1693 * @ioc: per adapter object 1694 * @cb_idx: callback index 1695 * 1696 * Returns smid (zero is invalid) 1697 */ 1698u16 1699mpt2sas_base_get_smid_hpr(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx) 1700{ 1701 unsigned long flags; 1702 struct request_tracker *request; 1703 u16 smid; 1704 1705 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 1706 if (list_empty(&ioc->hpr_free_list)) { 1707 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1708 return 0; 1709 } 1710 1711 request = list_entry(ioc->hpr_free_list.next, 1712 struct request_tracker, tracker_list); 1713 request->cb_idx = cb_idx; 1714 smid = request->smid; 1715 list_del(&request->tracker_list); 1716 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1717 return smid; 1718} 1719 1720 1721/** 1722 * mpt2sas_base_free_smid - put smid back on free_list 1723 * @ioc: per adapter object 1724 * @smid: system request message index 1725 * 1726 * Return nothing. 1727 */ 1728void 1729mpt2sas_base_free_smid(struct MPT2SAS_ADAPTER *ioc, u16 smid) 1730{ 1731 unsigned long flags; 1732 int i; 1733 struct chain_tracker *chain_req, *next; 1734 1735 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 1736 if (smid < ioc->hi_priority_smid) { 1737 /* scsiio queue */ 1738 i = smid - 1; 1739 if (!list_empty(&ioc->scsi_lookup[i].chain_list)) { 1740 list_for_each_entry_safe(chain_req, next, 1741 &ioc->scsi_lookup[i].chain_list, tracker_list) { 1742 list_del_init(&chain_req->tracker_list); 1743 list_add_tail(&chain_req->tracker_list, 1744 &ioc->free_chain_list); 1745 } 1746 } 1747 ioc->scsi_lookup[i].cb_idx = 0xFF; 1748 ioc->scsi_lookup[i].scmd = NULL; 1749 ioc->scsi_lookup[i].direct_io = 0; 1750 list_add_tail(&ioc->scsi_lookup[i].tracker_list, 1751 &ioc->free_list); 1752 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1753 1754 /* 1755 * See _wait_for_commands_to_complete() call with regards 1756 * to this code. 1757 */ 1758 if (ioc->shost_recovery && ioc->pending_io_count) { 1759 if (ioc->pending_io_count == 1) 1760 wake_up(&ioc->reset_wq); 1761 ioc->pending_io_count--; 1762 } 1763 return; 1764 } else if (smid < ioc->internal_smid) { 1765 /* hi-priority */ 1766 i = smid - ioc->hi_priority_smid; 1767 ioc->hpr_lookup[i].cb_idx = 0xFF; 1768 list_add_tail(&ioc->hpr_lookup[i].tracker_list, 1769 &ioc->hpr_free_list); 1770 } else if (smid <= ioc->hba_queue_depth) { 1771 /* internal queue */ 1772 i = smid - ioc->internal_smid; 1773 ioc->internal_lookup[i].cb_idx = 0xFF; 1774 list_add_tail(&ioc->internal_lookup[i].tracker_list, 1775 &ioc->internal_free_list); 1776 } 1777 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1778} 1779 1780/** 1781 * _base_writeq - 64 bit write to MMIO 1782 * @ioc: per adapter object 1783 * @b: data payload 1784 * @addr: address in MMIO space 1785 * @writeq_lock: spin lock 1786 * 1787 * Glue for handling an atomic 64 bit word to MMIO. This special handling takes 1788 * care of 32 bit environment where its not quarenteed to send the entire word 1789 * in one transfer. 1790 */ 1791#ifndef writeq 1792static inline void _base_writeq(__u64 b, volatile void __iomem *addr, 1793 spinlock_t *writeq_lock) 1794{ 1795 unsigned long flags; 1796 __u64 data_out = cpu_to_le64(b); 1797 1798 spin_lock_irqsave(writeq_lock, flags); 1799 writel((u32)(data_out), addr); 1800 writel((u32)(data_out >> 32), (addr + 4)); 1801 spin_unlock_irqrestore(writeq_lock, flags); 1802} 1803#else 1804static inline void _base_writeq(__u64 b, volatile void __iomem *addr, 1805 spinlock_t *writeq_lock) 1806{ 1807 writeq(cpu_to_le64(b), addr); 1808} 1809#endif 1810 1811static inline u8 1812_base_get_msix_index(struct MPT2SAS_ADAPTER *ioc) 1813{ 1814 return ioc->cpu_msix_table[raw_smp_processor_id()]; 1815} 1816 1817/** 1818 * mpt2sas_base_put_smid_scsi_io - send SCSI_IO request to firmware 1819 * @ioc: per adapter object 1820 * @smid: system request message index 1821 * @handle: device handle 1822 * 1823 * Return nothing. 1824 */ 1825void 1826mpt2sas_base_put_smid_scsi_io(struct MPT2SAS_ADAPTER *ioc, u16 smid, u16 handle) 1827{ 1828 Mpi2RequestDescriptorUnion_t descriptor; 1829 u64 *request = (u64 *)&descriptor; 1830 1831 1832 descriptor.SCSIIO.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO; 1833 descriptor.SCSIIO.MSIxIndex = _base_get_msix_index(ioc); 1834 descriptor.SCSIIO.SMID = cpu_to_le16(smid); 1835 descriptor.SCSIIO.DevHandle = cpu_to_le16(handle); 1836 descriptor.SCSIIO.LMID = 0; 1837 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow, 1838 &ioc->scsi_lookup_lock); 1839} 1840 1841 1842/** 1843 * mpt2sas_base_put_smid_hi_priority - send Task Management request to firmware 1844 * @ioc: per adapter object 1845 * @smid: system request message index 1846 * 1847 * Return nothing. 1848 */ 1849void 1850mpt2sas_base_put_smid_hi_priority(struct MPT2SAS_ADAPTER *ioc, u16 smid) 1851{ 1852 Mpi2RequestDescriptorUnion_t descriptor; 1853 u64 *request = (u64 *)&descriptor; 1854 1855 descriptor.HighPriority.RequestFlags = 1856 MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY; 1857 descriptor.HighPriority.MSIxIndex = 0; 1858 descriptor.HighPriority.SMID = cpu_to_le16(smid); 1859 descriptor.HighPriority.LMID = 0; 1860 descriptor.HighPriority.Reserved1 = 0; 1861 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow, 1862 &ioc->scsi_lookup_lock); 1863} 1864 1865/** 1866 * mpt2sas_base_put_smid_default - Default, primarily used for config pages 1867 * @ioc: per adapter object 1868 * @smid: system request message index 1869 * 1870 * Return nothing. 1871 */ 1872void 1873mpt2sas_base_put_smid_default(struct MPT2SAS_ADAPTER *ioc, u16 smid) 1874{ 1875 Mpi2RequestDescriptorUnion_t descriptor; 1876 u64 *request = (u64 *)&descriptor; 1877 1878 descriptor.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE; 1879 descriptor.Default.MSIxIndex = _base_get_msix_index(ioc); 1880 descriptor.Default.SMID = cpu_to_le16(smid); 1881 descriptor.Default.LMID = 0; 1882 descriptor.Default.DescriptorTypeDependent = 0; 1883 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow, 1884 &ioc->scsi_lookup_lock); 1885} 1886 1887/** 1888 * mpt2sas_base_put_smid_target_assist - send Target Assist/Status to firmware 1889 * @ioc: per adapter object 1890 * @smid: system request message index 1891 * @io_index: value used to track the IO 1892 * 1893 * Return nothing. 1894 */ 1895void 1896mpt2sas_base_put_smid_target_assist(struct MPT2SAS_ADAPTER *ioc, u16 smid, 1897 u16 io_index) 1898{ 1899 Mpi2RequestDescriptorUnion_t descriptor; 1900 u64 *request = (u64 *)&descriptor; 1901 1902 descriptor.SCSITarget.RequestFlags = 1903 MPI2_REQ_DESCRIPT_FLAGS_SCSI_TARGET; 1904 descriptor.SCSITarget.MSIxIndex = _base_get_msix_index(ioc); 1905 descriptor.SCSITarget.SMID = cpu_to_le16(smid); 1906 descriptor.SCSITarget.LMID = 0; 1907 descriptor.SCSITarget.IoIndex = cpu_to_le16(io_index); 1908 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow, 1909 &ioc->scsi_lookup_lock); 1910} 1911 1912/** 1913 * _base_display_dell_branding - Disply branding string 1914 * @ioc: per adapter object 1915 * 1916 * Return nothing. 1917 */ 1918static void 1919_base_display_dell_branding(struct MPT2SAS_ADAPTER *ioc) 1920{ 1921 char dell_branding[MPT2SAS_DELL_BRANDING_SIZE]; 1922 1923 if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_DELL) 1924 return; 1925 1926 memset(dell_branding, 0, MPT2SAS_DELL_BRANDING_SIZE); 1927 switch (ioc->pdev->subsystem_device) { 1928 case MPT2SAS_DELL_6GBPS_SAS_HBA_SSDID: 1929 strncpy(dell_branding, MPT2SAS_DELL_6GBPS_SAS_HBA_BRANDING, 1930 MPT2SAS_DELL_BRANDING_SIZE - 1); 1931 break; 1932 case MPT2SAS_DELL_PERC_H200_ADAPTER_SSDID: 1933 strncpy(dell_branding, MPT2SAS_DELL_PERC_H200_ADAPTER_BRANDING, 1934 MPT2SAS_DELL_BRANDING_SIZE - 1); 1935 break; 1936 case MPT2SAS_DELL_PERC_H200_INTEGRATED_SSDID: 1937 strncpy(dell_branding, 1938 MPT2SAS_DELL_PERC_H200_INTEGRATED_BRANDING, 1939 MPT2SAS_DELL_BRANDING_SIZE - 1); 1940 break; 1941 case MPT2SAS_DELL_PERC_H200_MODULAR_SSDID: 1942 strncpy(dell_branding, 1943 MPT2SAS_DELL_PERC_H200_MODULAR_BRANDING, 1944 MPT2SAS_DELL_BRANDING_SIZE - 1); 1945 break; 1946 case MPT2SAS_DELL_PERC_H200_EMBEDDED_SSDID: 1947 strncpy(dell_branding, 1948 MPT2SAS_DELL_PERC_H200_EMBEDDED_BRANDING, 1949 MPT2SAS_DELL_BRANDING_SIZE - 1); 1950 break; 1951 case MPT2SAS_DELL_PERC_H200_SSDID: 1952 strncpy(dell_branding, MPT2SAS_DELL_PERC_H200_BRANDING, 1953 MPT2SAS_DELL_BRANDING_SIZE - 1); 1954 break; 1955 case MPT2SAS_DELL_6GBPS_SAS_SSDID: 1956 strncpy(dell_branding, MPT2SAS_DELL_6GBPS_SAS_BRANDING, 1957 MPT2SAS_DELL_BRANDING_SIZE - 1); 1958 break; 1959 default: 1960 sprintf(dell_branding, "0x%4X", ioc->pdev->subsystem_device); 1961 break; 1962 } 1963 1964 printk(MPT2SAS_INFO_FMT "%s: Vendor(0x%04X), Device(0x%04X)," 1965 " SSVID(0x%04X), SSDID(0x%04X)\n", ioc->name, dell_branding, 1966 ioc->pdev->vendor, ioc->pdev->device, ioc->pdev->subsystem_vendor, 1967 ioc->pdev->subsystem_device); 1968} 1969 1970/** 1971 * _base_display_intel_branding - Display branding string 1972 * @ioc: per adapter object 1973 * 1974 * Return nothing. 1975 */ 1976static void 1977_base_display_intel_branding(struct MPT2SAS_ADAPTER *ioc) 1978{ 1979 if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_INTEL) 1980 return; 1981 1982 switch (ioc->pdev->device) { 1983 case MPI2_MFGPAGE_DEVID_SAS2008: 1984 switch (ioc->pdev->subsystem_device) { 1985 case MPT2SAS_INTEL_RMS2LL080_SSDID: 1986 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 1987 MPT2SAS_INTEL_RMS2LL080_BRANDING); 1988 break; 1989 case MPT2SAS_INTEL_RMS2LL040_SSDID: 1990 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 1991 MPT2SAS_INTEL_RMS2LL040_BRANDING); 1992 break; 1993 case MPT2SAS_INTEL_SSD910_SSDID: 1994 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 1995 MPT2SAS_INTEL_SSD910_BRANDING); 1996 break; 1997 default: 1998 break; 1999 } 2000 case MPI2_MFGPAGE_DEVID_SAS2308_2: 2001 switch (ioc->pdev->subsystem_device) { 2002 case MPT2SAS_INTEL_RS25GB008_SSDID: 2003 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2004 MPT2SAS_INTEL_RS25GB008_BRANDING); 2005 break; 2006 case MPT2SAS_INTEL_RMS25JB080_SSDID: 2007 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2008 MPT2SAS_INTEL_RMS25JB080_BRANDING); 2009 break; 2010 case MPT2SAS_INTEL_RMS25JB040_SSDID: 2011 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2012 MPT2SAS_INTEL_RMS25JB040_BRANDING); 2013 break; 2014 case MPT2SAS_INTEL_RMS25KB080_SSDID: 2015 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2016 MPT2SAS_INTEL_RMS25KB080_BRANDING); 2017 break; 2018 case MPT2SAS_INTEL_RMS25KB040_SSDID: 2019 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2020 MPT2SAS_INTEL_RMS25KB040_BRANDING); 2021 break; 2022 case MPT2SAS_INTEL_RMS25LB040_SSDID: 2023 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2024 MPT2SAS_INTEL_RMS25LB040_BRANDING); 2025 break; 2026 case MPT2SAS_INTEL_RMS25LB080_SSDID: 2027 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2028 MPT2SAS_INTEL_RMS25LB080_BRANDING); 2029 break; 2030 default: 2031 break; 2032 } 2033 default: 2034 break; 2035 } 2036} 2037 2038/** 2039 * _base_display_hp_branding - Display branding string 2040 * @ioc: per adapter object 2041 * 2042 * Return nothing. 2043 */ 2044static void 2045_base_display_hp_branding(struct MPT2SAS_ADAPTER *ioc) 2046{ 2047 if (ioc->pdev->subsystem_vendor != MPT2SAS_HP_3PAR_SSVID) 2048 return; 2049 2050 switch (ioc->pdev->device) { 2051 case MPI2_MFGPAGE_DEVID_SAS2004: 2052 switch (ioc->pdev->subsystem_device) { 2053 case MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_SSDID: 2054 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2055 MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_BRANDING); 2056 break; 2057 default: 2058 break; 2059 } 2060 case MPI2_MFGPAGE_DEVID_SAS2308_2: 2061 switch (ioc->pdev->subsystem_device) { 2062 case MPT2SAS_HP_2_4_INTERNAL_SSDID: 2063 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2064 MPT2SAS_HP_2_4_INTERNAL_BRANDING); 2065 break; 2066 case MPT2SAS_HP_2_4_EXTERNAL_SSDID: 2067 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2068 MPT2SAS_HP_2_4_EXTERNAL_BRANDING); 2069 break; 2070 case MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_SSDID: 2071 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2072 MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_BRANDING); 2073 break; 2074 case MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_SSDID: 2075 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2076 MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_BRANDING); 2077 break; 2078 default: 2079 break; 2080 } 2081 default: 2082 break; 2083 } 2084} 2085 2086/** 2087 * _base_display_ioc_capabilities - Disply IOC's capabilities. 2088 * @ioc: per adapter object 2089 * 2090 * Return nothing. 2091 */ 2092static void 2093_base_display_ioc_capabilities(struct MPT2SAS_ADAPTER *ioc) 2094{ 2095 int i = 0; 2096 char desc[16]; 2097 u32 iounit_pg1_flags; 2098 u32 bios_version; 2099 2100 bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion); 2101 strncpy(desc, ioc->manu_pg0.ChipName, 16); 2102 printk(MPT2SAS_INFO_FMT "%s: FWVersion(%02d.%02d.%02d.%02d), " 2103 "ChipRevision(0x%02x), BiosVersion(%02d.%02d.%02d.%02d)\n", 2104 ioc->name, desc, 2105 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24, 2106 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16, 2107 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8, 2108 ioc->facts.FWVersion.Word & 0x000000FF, 2109 ioc->pdev->revision, 2110 (bios_version & 0xFF000000) >> 24, 2111 (bios_version & 0x00FF0000) >> 16, 2112 (bios_version & 0x0000FF00) >> 8, 2113 bios_version & 0x000000FF); 2114 2115 _base_display_dell_branding(ioc); 2116 _base_display_intel_branding(ioc); 2117 _base_display_hp_branding(ioc); 2118 2119 printk(MPT2SAS_INFO_FMT "Protocol=(", ioc->name); 2120 2121 if (ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR) { 2122 printk("Initiator"); 2123 i++; 2124 } 2125 2126 if (ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_TARGET) { 2127 printk("%sTarget", i ? "," : ""); 2128 i++; 2129 } 2130 2131 i = 0; 2132 printk("), "); 2133 printk("Capabilities=("); 2134 2135 if (!ioc->hide_ir_msg) { 2136 if (ioc->facts.IOCCapabilities & 2137 MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID) { 2138 printk("Raid"); 2139 i++; 2140 } 2141 } 2142 2143 if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR) { 2144 printk("%sTLR", i ? "," : ""); 2145 i++; 2146 } 2147 2148 if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_MULTICAST) { 2149 printk("%sMulticast", i ? "," : ""); 2150 i++; 2151 } 2152 2153 if (ioc->facts.IOCCapabilities & 2154 MPI2_IOCFACTS_CAPABILITY_BIDIRECTIONAL_TARGET) { 2155 printk("%sBIDI Target", i ? "," : ""); 2156 i++; 2157 } 2158 2159 if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_EEDP) { 2160 printk("%sEEDP", i ? "," : ""); 2161 i++; 2162 } 2163 2164 if (ioc->facts.IOCCapabilities & 2165 MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER) { 2166 printk("%sSnapshot Buffer", i ? "," : ""); 2167 i++; 2168 } 2169 2170 if (ioc->facts.IOCCapabilities & 2171 MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER) { 2172 printk("%sDiag Trace Buffer", i ? "," : ""); 2173 i++; 2174 } 2175 2176 if (ioc->facts.IOCCapabilities & 2177 MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER) { 2178 printk(KERN_INFO "%sDiag Extended Buffer", i ? "," : ""); 2179 i++; 2180 } 2181 2182 if (ioc->facts.IOCCapabilities & 2183 MPI2_IOCFACTS_CAPABILITY_TASK_SET_FULL_HANDLING) { 2184 printk("%sTask Set Full", i ? "," : ""); 2185 i++; 2186 } 2187 2188 iounit_pg1_flags = le32_to_cpu(ioc->iounit_pg1.Flags); 2189 if (!(iounit_pg1_flags & MPI2_IOUNITPAGE1_NATIVE_COMMAND_Q_DISABLE)) { 2190 printk("%sNCQ", i ? "," : ""); 2191 i++; 2192 } 2193 2194 printk(")\n"); 2195} 2196 2197/** 2198 * mpt2sas_base_update_missing_delay - change the missing delay timers 2199 * @ioc: per adapter object 2200 * @device_missing_delay: amount of time till device is reported missing 2201 * @io_missing_delay: interval IO is returned when there is a missing device 2202 * 2203 * Return nothing. 2204 * 2205 * Passed on the command line, this function will modify the device missing 2206 * delay, as well as the io missing delay. This should be called at driver 2207 * load time. 2208 */ 2209void 2210mpt2sas_base_update_missing_delay(struct MPT2SAS_ADAPTER *ioc, 2211 u16 device_missing_delay, u8 io_missing_delay) 2212{ 2213 u16 dmd, dmd_new, dmd_orignal; 2214 u8 io_missing_delay_original; 2215 u16 sz; 2216 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL; 2217 Mpi2ConfigReply_t mpi_reply; 2218 u8 num_phys = 0; 2219 u16 ioc_status; 2220 2221 mpt2sas_config_get_number_hba_phys(ioc, &num_phys); 2222 if (!num_phys) 2223 return; 2224 2225 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (num_phys * 2226 sizeof(Mpi2SasIOUnit1PhyData_t)); 2227 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL); 2228 if (!sas_iounit_pg1) { 2229 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", 2230 ioc->name, __FILE__, __LINE__, __func__); 2231 goto out; 2232 } 2233 if ((mpt2sas_config_get_sas_iounit_pg1(ioc, &mpi_reply, 2234 sas_iounit_pg1, sz))) { 2235 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", 2236 ioc->name, __FILE__, __LINE__, __func__); 2237 goto out; 2238 } 2239 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 2240 MPI2_IOCSTATUS_MASK; 2241 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 2242 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", 2243 ioc->name, __FILE__, __LINE__, __func__); 2244 goto out; 2245 } 2246 2247 /* device missing delay */ 2248 dmd = sas_iounit_pg1->ReportDeviceMissingDelay; 2249 if (dmd & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16) 2250 dmd = (dmd & MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16; 2251 else 2252 dmd = dmd & MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK; 2253 dmd_orignal = dmd; 2254 if (device_missing_delay > 0x7F) { 2255 dmd = (device_missing_delay > 0x7F0) ? 0x7F0 : 2256 device_missing_delay; 2257 dmd = dmd / 16; 2258 dmd |= MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16; 2259 } else 2260 dmd = device_missing_delay; 2261 sas_iounit_pg1->ReportDeviceMissingDelay = dmd; 2262 2263 /* io missing delay */ 2264 io_missing_delay_original = sas_iounit_pg1->IODeviceMissingDelay; 2265 sas_iounit_pg1->IODeviceMissingDelay = io_missing_delay; 2266 2267 if (!mpt2sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1, 2268 sz)) { 2269 if (dmd & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16) 2270 dmd_new = (dmd & 2271 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16; 2272 else 2273 dmd_new = 2274 dmd & MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK; 2275 printk(MPT2SAS_INFO_FMT "device_missing_delay: old(%d), " 2276 "new(%d)\n", ioc->name, dmd_orignal, dmd_new); 2277 printk(MPT2SAS_INFO_FMT "ioc_missing_delay: old(%d), " 2278 "new(%d)\n", ioc->name, io_missing_delay_original, 2279 io_missing_delay); 2280 ioc->device_missing_delay = dmd_new; 2281 ioc->io_missing_delay = io_missing_delay; 2282 } 2283 2284out: 2285 kfree(sas_iounit_pg1); 2286} 2287 2288/** 2289 * _base_static_config_pages - static start of day config pages 2290 * @ioc: per adapter object 2291 * 2292 * Return nothing. 2293 */ 2294static void 2295_base_static_config_pages(struct MPT2SAS_ADAPTER *ioc) 2296{ 2297 Mpi2ConfigReply_t mpi_reply; 2298 u32 iounit_pg1_flags; 2299 2300 mpt2sas_config_get_manufacturing_pg0(ioc, &mpi_reply, &ioc->manu_pg0); 2301 if (ioc->ir_firmware) 2302 mpt2sas_config_get_manufacturing_pg10(ioc, &mpi_reply, 2303 &ioc->manu_pg10); 2304 mpt2sas_config_get_bios_pg2(ioc, &mpi_reply, &ioc->bios_pg2); 2305 mpt2sas_config_get_bios_pg3(ioc, &mpi_reply, &ioc->bios_pg3); 2306 mpt2sas_config_get_ioc_pg8(ioc, &mpi_reply, &ioc->ioc_pg8); 2307 mpt2sas_config_get_iounit_pg0(ioc, &mpi_reply, &ioc->iounit_pg0); 2308 mpt2sas_config_get_iounit_pg1(ioc, &mpi_reply, &ioc->iounit_pg1); 2309 _base_display_ioc_capabilities(ioc); 2310 2311 /* 2312 * Enable task_set_full handling in iounit_pg1 when the 2313 * facts capabilities indicate that its supported. 2314 */ 2315 iounit_pg1_flags = le32_to_cpu(ioc->iounit_pg1.Flags); 2316 if ((ioc->facts.IOCCapabilities & 2317 MPI2_IOCFACTS_CAPABILITY_TASK_SET_FULL_HANDLING)) 2318 iounit_pg1_flags &= 2319 ~MPI2_IOUNITPAGE1_DISABLE_TASK_SET_FULL_HANDLING; 2320 else 2321 iounit_pg1_flags |= 2322 MPI2_IOUNITPAGE1_DISABLE_TASK_SET_FULL_HANDLING; 2323 ioc->iounit_pg1.Flags = cpu_to_le32(iounit_pg1_flags); 2324 mpt2sas_config_set_iounit_pg1(ioc, &mpi_reply, &ioc->iounit_pg1); 2325 2326} 2327 2328/** 2329 * _base_release_memory_pools - release memory 2330 * @ioc: per adapter object 2331 * 2332 * Free memory allocated from _base_allocate_memory_pools. 2333 * 2334 * Return nothing. 2335 */ 2336static void 2337_base_release_memory_pools(struct MPT2SAS_ADAPTER *ioc) 2338{ 2339 int i; 2340 2341 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2342 __func__)); 2343 2344 if (ioc->request) { 2345 pci_free_consistent(ioc->pdev, ioc->request_dma_sz, 2346 ioc->request, ioc->request_dma); 2347 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "request_pool(0x%p)" 2348 ": free\n", ioc->name, ioc->request)); 2349 ioc->request = NULL; 2350 } 2351 2352 if (ioc->sense) { 2353 pci_pool_free(ioc->sense_dma_pool, ioc->sense, ioc->sense_dma); 2354 if (ioc->sense_dma_pool) 2355 pci_pool_destroy(ioc->sense_dma_pool); 2356 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "sense_pool(0x%p)" 2357 ": free\n", ioc->name, ioc->sense)); 2358 ioc->sense = NULL; 2359 } 2360 2361 if (ioc->reply) { 2362 pci_pool_free(ioc->reply_dma_pool, ioc->reply, ioc->reply_dma); 2363 if (ioc->reply_dma_pool) 2364 pci_pool_destroy(ioc->reply_dma_pool); 2365 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_pool(0x%p)" 2366 ": free\n", ioc->name, ioc->reply)); 2367 ioc->reply = NULL; 2368 } 2369 2370 if (ioc->reply_free) { 2371 pci_pool_free(ioc->reply_free_dma_pool, ioc->reply_free, 2372 ioc->reply_free_dma); 2373 if (ioc->reply_free_dma_pool) 2374 pci_pool_destroy(ioc->reply_free_dma_pool); 2375 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_free_pool" 2376 "(0x%p): free\n", ioc->name, ioc->reply_free)); 2377 ioc->reply_free = NULL; 2378 } 2379 2380 if (ioc->reply_post_free) { 2381 pci_pool_free(ioc->reply_post_free_dma_pool, 2382 ioc->reply_post_free, ioc->reply_post_free_dma); 2383 if (ioc->reply_post_free_dma_pool) 2384 pci_pool_destroy(ioc->reply_post_free_dma_pool); 2385 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT 2386 "reply_post_free_pool(0x%p): free\n", ioc->name, 2387 ioc->reply_post_free)); 2388 ioc->reply_post_free = NULL; 2389 } 2390 2391 if (ioc->config_page) { 2392 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT 2393 "config_page(0x%p): free\n", ioc->name, 2394 ioc->config_page)); 2395 pci_free_consistent(ioc->pdev, ioc->config_page_sz, 2396 ioc->config_page, ioc->config_page_dma); 2397 } 2398 2399 if (ioc->scsi_lookup) { 2400 free_pages((ulong)ioc->scsi_lookup, ioc->scsi_lookup_pages); 2401 ioc->scsi_lookup = NULL; 2402 } 2403 kfree(ioc->hpr_lookup); 2404 kfree(ioc->internal_lookup); 2405 if (ioc->chain_lookup) { 2406 for (i = 0; i < ioc->chain_depth; i++) { 2407 if (ioc->chain_lookup[i].chain_buffer) 2408 pci_pool_free(ioc->chain_dma_pool, 2409 ioc->chain_lookup[i].chain_buffer, 2410 ioc->chain_lookup[i].chain_buffer_dma); 2411 } 2412 if (ioc->chain_dma_pool) 2413 pci_pool_destroy(ioc->chain_dma_pool); 2414 free_pages((ulong)ioc->chain_lookup, ioc->chain_pages); 2415 ioc->chain_lookup = NULL; 2416 } 2417} 2418 2419 2420/** 2421 * _base_allocate_memory_pools - allocate start of day memory pools 2422 * @ioc: per adapter object 2423 * @sleep_flag: CAN_SLEEP or NO_SLEEP 2424 * 2425 * Returns 0 success, anything else error 2426 */ 2427static int 2428_base_allocate_memory_pools(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) 2429{ 2430 struct mpt2sas_facts *facts; 2431 u16 max_sge_elements; 2432 u16 chains_needed_per_io; 2433 u32 sz, total_sz, reply_post_free_sz; 2434 u32 retry_sz; 2435 u16 max_request_credit; 2436 int i; 2437 2438 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 2439 __func__)); 2440 2441 retry_sz = 0; 2442 facts = &ioc->facts; 2443 2444 /* command line tunables for max sgl entries */ 2445 if (max_sgl_entries != -1) { 2446 ioc->shost->sg_tablesize = (max_sgl_entries < 2447 MPT2SAS_SG_DEPTH) ? max_sgl_entries : 2448 MPT2SAS_SG_DEPTH; 2449 } else { 2450 ioc->shost->sg_tablesize = MPT2SAS_SG_DEPTH; 2451 } 2452 2453 /* command line tunables for max controller queue depth */ 2454 if (max_queue_depth != -1 && max_queue_depth != 0) { 2455 max_request_credit = min_t(u16, max_queue_depth + 2456 ioc->hi_priority_depth + ioc->internal_depth, 2457 facts->RequestCredit); 2458 if (max_request_credit > MAX_HBA_QUEUE_DEPTH) 2459 max_request_credit = MAX_HBA_QUEUE_DEPTH; 2460 } else 2461 max_request_credit = min_t(u16, facts->RequestCredit, 2462 MAX_HBA_QUEUE_DEPTH); 2463 2464 ioc->hba_queue_depth = max_request_credit; 2465 ioc->hi_priority_depth = facts->HighPriorityCredit; 2466 ioc->internal_depth = ioc->hi_priority_depth + 5; 2467 2468 /* request frame size */ 2469 ioc->request_sz = facts->IOCRequestFrameSize * 4; 2470 2471 /* reply frame size */ 2472 ioc->reply_sz = facts->ReplyFrameSize * 4; 2473 2474 retry_allocation: 2475 total_sz = 0; 2476 /* calculate number of sg elements left over in the 1st frame */ 2477 max_sge_elements = ioc->request_sz - ((sizeof(Mpi2SCSIIORequest_t) - 2478 sizeof(Mpi2SGEIOUnion_t)) + ioc->sge_size); 2479 ioc->max_sges_in_main_message = max_sge_elements/ioc->sge_size; 2480 2481 /* now do the same for a chain buffer */ 2482 max_sge_elements = ioc->request_sz - ioc->sge_size; 2483 ioc->max_sges_in_chain_message = max_sge_elements/ioc->sge_size; 2484 2485 ioc->chain_offset_value_for_main_message = 2486 ((sizeof(Mpi2SCSIIORequest_t) - sizeof(Mpi2SGEIOUnion_t)) + 2487 (ioc->max_sges_in_chain_message * ioc->sge_size)) / 4; 2488 2489 /* 2490 * MPT2SAS_SG_DEPTH = CONFIG_FUSION_MAX_SGE 2491 */ 2492 chains_needed_per_io = ((ioc->shost->sg_tablesize - 2493 ioc->max_sges_in_main_message)/ioc->max_sges_in_chain_message) 2494 + 1; 2495 if (chains_needed_per_io > facts->MaxChainDepth) { 2496 chains_needed_per_io = facts->MaxChainDepth; 2497 ioc->shost->sg_tablesize = min_t(u16, 2498 ioc->max_sges_in_main_message + (ioc->max_sges_in_chain_message 2499 * chains_needed_per_io), ioc->shost->sg_tablesize); 2500 } 2501 ioc->chains_needed_per_io = chains_needed_per_io; 2502 2503 /* reply free queue sizing - taking into account for 64 FW events */ 2504 ioc->reply_free_queue_depth = ioc->hba_queue_depth + 64; 2505 2506 /* calculate reply descriptor post queue depth */ 2507 ioc->reply_post_queue_depth = ioc->hba_queue_depth + 2508 ioc->reply_free_queue_depth + 1; 2509 /* align the reply post queue on the next 16 count boundary */ 2510 if (ioc->reply_post_queue_depth % 16) 2511 ioc->reply_post_queue_depth += 16 - 2512 (ioc->reply_post_queue_depth % 16); 2513 2514 2515 if (ioc->reply_post_queue_depth > 2516 facts->MaxReplyDescriptorPostQueueDepth) { 2517 ioc->reply_post_queue_depth = 2518 facts->MaxReplyDescriptorPostQueueDepth - 2519 (facts->MaxReplyDescriptorPostQueueDepth % 16); 2520 ioc->hba_queue_depth = 2521 ((ioc->reply_post_queue_depth - 64) / 2) - 1; 2522 ioc->reply_free_queue_depth = ioc->hba_queue_depth + 64; 2523 } 2524 2525 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scatter gather: " 2526 "sge_in_main_msg(%d), sge_per_chain(%d), sge_per_io(%d), " 2527 "chains_per_io(%d)\n", ioc->name, ioc->max_sges_in_main_message, 2528 ioc->max_sges_in_chain_message, ioc->shost->sg_tablesize, 2529 ioc->chains_needed_per_io)); 2530 2531 ioc->scsiio_depth = ioc->hba_queue_depth - 2532 ioc->hi_priority_depth - ioc->internal_depth; 2533 2534 /* set the scsi host can_queue depth 2535 * with some internal commands that could be outstanding 2536 */ 2537 ioc->shost->can_queue = ioc->scsiio_depth; 2538 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scsi host: " 2539 "can_queue depth (%d)\n", ioc->name, ioc->shost->can_queue)); 2540 2541 /* contiguous pool for request and chains, 16 byte align, one extra " 2542 * "frame for smid=0 2543 */ 2544 ioc->chain_depth = ioc->chains_needed_per_io * ioc->scsiio_depth; 2545 sz = ((ioc->scsiio_depth + 1) * ioc->request_sz); 2546 2547 /* hi-priority queue */ 2548 sz += (ioc->hi_priority_depth * ioc->request_sz); 2549 2550 /* internal queue */ 2551 sz += (ioc->internal_depth * ioc->request_sz); 2552 2553 ioc->request_dma_sz = sz; 2554 ioc->request = pci_alloc_consistent(ioc->pdev, sz, &ioc->request_dma); 2555 if (!ioc->request) { 2556 printk(MPT2SAS_ERR_FMT "request pool: pci_alloc_consistent " 2557 "failed: hba_depth(%d), chains_per_io(%d), frame_sz(%d), " 2558 "total(%d kB)\n", ioc->name, ioc->hba_queue_depth, 2559 ioc->chains_needed_per_io, ioc->request_sz, sz/1024); 2560 if (ioc->scsiio_depth < MPT2SAS_SAS_QUEUE_DEPTH) 2561 goto out; 2562 retry_sz += 64; 2563 ioc->hba_queue_depth = max_request_credit - retry_sz; 2564 goto retry_allocation; 2565 } 2566 2567 if (retry_sz) 2568 printk(MPT2SAS_ERR_FMT "request pool: pci_alloc_consistent " 2569 "succeed: hba_depth(%d), chains_per_io(%d), frame_sz(%d), " 2570 "total(%d kb)\n", ioc->name, ioc->hba_queue_depth, 2571 ioc->chains_needed_per_io, ioc->request_sz, sz/1024); 2572 2573 2574 /* hi-priority queue */ 2575 ioc->hi_priority = ioc->request + ((ioc->scsiio_depth + 1) * 2576 ioc->request_sz); 2577 ioc->hi_priority_dma = ioc->request_dma + ((ioc->scsiio_depth + 1) * 2578 ioc->request_sz); 2579 2580 /* internal queue */ 2581 ioc->internal = ioc->hi_priority + (ioc->hi_priority_depth * 2582 ioc->request_sz); 2583 ioc->internal_dma = ioc->hi_priority_dma + (ioc->hi_priority_depth * 2584 ioc->request_sz); 2585 2586 2587 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "request pool(0x%p): " 2588 "depth(%d), frame_size(%d), pool_size(%d kB)\n", ioc->name, 2589 ioc->request, ioc->hba_queue_depth, ioc->request_sz, 2590 (ioc->hba_queue_depth * ioc->request_sz)/1024)); 2591 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "request pool: dma(0x%llx)\n", 2592 ioc->name, (unsigned long long) ioc->request_dma)); 2593 total_sz += sz; 2594 2595 sz = ioc->scsiio_depth * sizeof(struct scsiio_tracker); 2596 ioc->scsi_lookup_pages = get_order(sz); 2597 ioc->scsi_lookup = (struct scsiio_tracker *)__get_free_pages( 2598 GFP_KERNEL, ioc->scsi_lookup_pages); 2599 if (!ioc->scsi_lookup) { 2600 printk(MPT2SAS_ERR_FMT "scsi_lookup: get_free_pages failed, " 2601 "sz(%d)\n", ioc->name, (int)sz); 2602 goto out; 2603 } 2604 2605 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scsiio(0x%p): " 2606 "depth(%d)\n", ioc->name, ioc->request, 2607 ioc->scsiio_depth)); 2608 2609 ioc->chain_depth = min_t(u32, ioc->chain_depth, MAX_CHAIN_DEPTH); 2610 sz = ioc->chain_depth * sizeof(struct chain_tracker); 2611 ioc->chain_pages = get_order(sz); 2612 2613 ioc->chain_lookup = (struct chain_tracker *)__get_free_pages( 2614 GFP_KERNEL, ioc->chain_pages); 2615 if (!ioc->chain_lookup) { 2616 printk(MPT2SAS_ERR_FMT "chain_lookup: get_free_pages failed, " 2617 "sz(%d)\n", ioc->name, (int)sz); 2618 goto out; 2619 } 2620 ioc->chain_dma_pool = pci_pool_create("chain pool", ioc->pdev, 2621 ioc->request_sz, 16, 0); 2622 if (!ioc->chain_dma_pool) { 2623 printk(MPT2SAS_ERR_FMT "chain_dma_pool: pci_pool_create " 2624 "failed\n", ioc->name); 2625 goto out; 2626 } 2627 for (i = 0; i < ioc->chain_depth; i++) { 2628 ioc->chain_lookup[i].chain_buffer = pci_pool_alloc( 2629 ioc->chain_dma_pool , GFP_KERNEL, 2630 &ioc->chain_lookup[i].chain_buffer_dma); 2631 if (!ioc->chain_lookup[i].chain_buffer) { 2632 ioc->chain_depth = i; 2633 goto chain_done; 2634 } 2635 total_sz += ioc->request_sz; 2636 } 2637chain_done: 2638 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "chain pool depth" 2639 "(%d), frame_size(%d), pool_size(%d kB)\n", ioc->name, 2640 ioc->chain_depth, ioc->request_sz, ((ioc->chain_depth * 2641 ioc->request_sz))/1024)); 2642 2643 /* initialize hi-priority queue smid's */ 2644 ioc->hpr_lookup = kcalloc(ioc->hi_priority_depth, 2645 sizeof(struct request_tracker), GFP_KERNEL); 2646 if (!ioc->hpr_lookup) { 2647 printk(MPT2SAS_ERR_FMT "hpr_lookup: kcalloc failed\n", 2648 ioc->name); 2649 goto out; 2650 } 2651 ioc->hi_priority_smid = ioc->scsiio_depth + 1; 2652 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "hi_priority(0x%p): " 2653 "depth(%d), start smid(%d)\n", ioc->name, ioc->hi_priority, 2654 ioc->hi_priority_depth, ioc->hi_priority_smid)); 2655 2656 /* initialize internal queue smid's */ 2657 ioc->internal_lookup = kcalloc(ioc->internal_depth, 2658 sizeof(struct request_tracker), GFP_KERNEL); 2659 if (!ioc->internal_lookup) { 2660 printk(MPT2SAS_ERR_FMT "internal_lookup: kcalloc failed\n", 2661 ioc->name); 2662 goto out; 2663 } 2664 ioc->internal_smid = ioc->hi_priority_smid + ioc->hi_priority_depth; 2665 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "internal(0x%p): " 2666 "depth(%d), start smid(%d)\n", ioc->name, ioc->internal, 2667 ioc->internal_depth, ioc->internal_smid)); 2668 2669 /* sense buffers, 4 byte align */ 2670 sz = ioc->scsiio_depth * SCSI_SENSE_BUFFERSIZE; 2671 ioc->sense_dma_pool = pci_pool_create("sense pool", ioc->pdev, sz, 4, 2672 0); 2673 if (!ioc->sense_dma_pool) { 2674 printk(MPT2SAS_ERR_FMT "sense pool: pci_pool_create failed\n", 2675 ioc->name); 2676 goto out; 2677 } 2678 ioc->sense = pci_pool_alloc(ioc->sense_dma_pool , GFP_KERNEL, 2679 &ioc->sense_dma); 2680 if (!ioc->sense) { 2681 printk(MPT2SAS_ERR_FMT "sense pool: pci_pool_alloc failed\n", 2682 ioc->name); 2683 goto out; 2684 } 2685 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT 2686 "sense pool(0x%p): depth(%d), element_size(%d), pool_size" 2687 "(%d kB)\n", ioc->name, ioc->sense, ioc->scsiio_depth, 2688 SCSI_SENSE_BUFFERSIZE, sz/1024)); 2689 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "sense_dma(0x%llx)\n", 2690 ioc->name, (unsigned long long)ioc->sense_dma)); 2691 total_sz += sz; 2692 2693 /* reply pool, 4 byte align */ 2694 sz = ioc->reply_free_queue_depth * ioc->reply_sz; 2695 ioc->reply_dma_pool = pci_pool_create("reply pool", ioc->pdev, sz, 4, 2696 0); 2697 if (!ioc->reply_dma_pool) { 2698 printk(MPT2SAS_ERR_FMT "reply pool: pci_pool_create failed\n", 2699 ioc->name); 2700 goto out; 2701 } 2702 ioc->reply = pci_pool_alloc(ioc->reply_dma_pool , GFP_KERNEL, 2703 &ioc->reply_dma); 2704 if (!ioc->reply) { 2705 printk(MPT2SAS_ERR_FMT "reply pool: pci_pool_alloc failed\n", 2706 ioc->name); 2707 goto out; 2708 } 2709 ioc->reply_dma_min_address = (u32)(ioc->reply_dma); 2710 ioc->reply_dma_max_address = (u32)(ioc->reply_dma) + sz; 2711 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply pool(0x%p): depth" 2712 "(%d), frame_size(%d), pool_size(%d kB)\n", ioc->name, ioc->reply, 2713 ioc->reply_free_queue_depth, ioc->reply_sz, sz/1024)); 2714 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_dma(0x%llx)\n", 2715 ioc->name, (unsigned long long)ioc->reply_dma)); 2716 total_sz += sz; 2717 2718 /* reply free queue, 16 byte align */ 2719 sz = ioc->reply_free_queue_depth * 4; 2720 ioc->reply_free_dma_pool = pci_pool_create("reply_free pool", 2721 ioc->pdev, sz, 16, 0); 2722 if (!ioc->reply_free_dma_pool) { 2723 printk(MPT2SAS_ERR_FMT "reply_free pool: pci_pool_create " 2724 "failed\n", ioc->name); 2725 goto out; 2726 } 2727 ioc->reply_free = pci_pool_alloc(ioc->reply_free_dma_pool , GFP_KERNEL, 2728 &ioc->reply_free_dma); 2729 if (!ioc->reply_free) { 2730 printk(MPT2SAS_ERR_FMT "reply_free pool: pci_pool_alloc " 2731 "failed\n", ioc->name); 2732 goto out; 2733 } 2734 memset(ioc->reply_free, 0, sz); 2735 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_free pool(0x%p): " 2736 "depth(%d), element_size(%d), pool_size(%d kB)\n", ioc->name, 2737 ioc->reply_free, ioc->reply_free_queue_depth, 4, sz/1024)); 2738 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_free_dma" 2739 "(0x%llx)\n", ioc->name, (unsigned long long)ioc->reply_free_dma)); 2740 total_sz += sz; 2741 2742 /* reply post queue, 16 byte align */ 2743 reply_post_free_sz = ioc->reply_post_queue_depth * 2744 sizeof(Mpi2DefaultReplyDescriptor_t); 2745 if (_base_is_controller_msix_enabled(ioc)) 2746 sz = reply_post_free_sz * ioc->reply_queue_count; 2747 else 2748 sz = reply_post_free_sz; 2749 ioc->reply_post_free_dma_pool = pci_pool_create("reply_post_free pool", 2750 ioc->pdev, sz, 16, 0); 2751 if (!ioc->reply_post_free_dma_pool) { 2752 printk(MPT2SAS_ERR_FMT "reply_post_free pool: pci_pool_create " 2753 "failed\n", ioc->name); 2754 goto out; 2755 } 2756 ioc->reply_post_free = pci_pool_alloc(ioc->reply_post_free_dma_pool , 2757 GFP_KERNEL, &ioc->reply_post_free_dma); 2758 if (!ioc->reply_post_free) { 2759 printk(MPT2SAS_ERR_FMT "reply_post_free pool: pci_pool_alloc " 2760 "failed\n", ioc->name); 2761 goto out; 2762 } 2763 memset(ioc->reply_post_free, 0, sz); 2764 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply post free pool" 2765 "(0x%p): depth(%d), element_size(%d), pool_size(%d kB)\n", 2766 ioc->name, ioc->reply_post_free, ioc->reply_post_queue_depth, 8, 2767 sz/1024)); 2768 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_post_free_dma = " 2769 "(0x%llx)\n", ioc->name, (unsigned long long) 2770 ioc->reply_post_free_dma)); 2771 total_sz += sz; 2772 2773 ioc->config_page_sz = 512; 2774 ioc->config_page = pci_alloc_consistent(ioc->pdev, 2775 ioc->config_page_sz, &ioc->config_page_dma); 2776 if (!ioc->config_page) { 2777 printk(MPT2SAS_ERR_FMT "config page: pci_pool_alloc " 2778 "failed\n", ioc->name); 2779 goto out; 2780 } 2781 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "config page(0x%p): size" 2782 "(%d)\n", ioc->name, ioc->config_page, ioc->config_page_sz)); 2783 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "config_page_dma" 2784 "(0x%llx)\n", ioc->name, (unsigned long long)ioc->config_page_dma)); 2785 total_sz += ioc->config_page_sz; 2786 2787 printk(MPT2SAS_INFO_FMT "Allocated physical memory: size(%d kB)\n", 2788 ioc->name, total_sz/1024); 2789 printk(MPT2SAS_INFO_FMT "Current Controller Queue Depth(%d), " 2790 "Max Controller Queue Depth(%d)\n", 2791 ioc->name, ioc->shost->can_queue, facts->RequestCredit); 2792 printk(MPT2SAS_INFO_FMT "Scatter Gather Elements per IO(%d)\n", 2793 ioc->name, ioc->shost->sg_tablesize); 2794 return 0; 2795 2796 out: 2797 return -ENOMEM; 2798} 2799 2800 2801/** 2802 * mpt2sas_base_get_iocstate - Get the current state of a MPT adapter. 2803 * @ioc: Pointer to MPT_ADAPTER structure 2804 * @cooked: Request raw or cooked IOC state 2805 * 2806 * Returns all IOC Doorbell register bits if cooked==0, else just the 2807 * Doorbell bits in MPI_IOC_STATE_MASK. 2808 */ 2809u32 2810mpt2sas_base_get_iocstate(struct MPT2SAS_ADAPTER *ioc, int cooked) 2811{ 2812 u32 s, sc; 2813 2814 s = readl(&ioc->chip->Doorbell); 2815 sc = s & MPI2_IOC_STATE_MASK; 2816 return cooked ? sc : s; 2817} 2818 2819/** 2820 * _base_wait_on_iocstate - waiting on a particular ioc state 2821 * @ioc_state: controller state { READY, OPERATIONAL, or RESET } 2822 * @timeout: timeout in second 2823 * @sleep_flag: CAN_SLEEP or NO_SLEEP 2824 * 2825 * Returns 0 for success, non-zero for failure. 2826 */ 2827static int 2828_base_wait_on_iocstate(struct MPT2SAS_ADAPTER *ioc, u32 ioc_state, int timeout, 2829 int sleep_flag) 2830{ 2831 u32 count, cntdn; 2832 u32 current_state; 2833 2834 count = 0; 2835 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout; 2836 do { 2837 current_state = mpt2sas_base_get_iocstate(ioc, 1); 2838 if (current_state == ioc_state) 2839 return 0; 2840 if (count && current_state == MPI2_IOC_STATE_FAULT) 2841 break; 2842 if (sleep_flag == CAN_SLEEP) 2843 msleep(1); 2844 else 2845 udelay(500); 2846 count++; 2847 } while (--cntdn); 2848 2849 return current_state; 2850} 2851 2852/** 2853 * _base_wait_for_doorbell_int - waiting for controller interrupt(generated by 2854 * a write to the doorbell) 2855 * @ioc: per adapter object 2856 * @timeout: timeout in second 2857 * @sleep_flag: CAN_SLEEP or NO_SLEEP 2858 * 2859 * Returns 0 for success, non-zero for failure. 2860 * 2861 * Notes: MPI2_HIS_IOC2SYS_DB_STATUS - set to one when IOC writes to doorbell. 2862 */ 2863static int 2864_base_wait_for_doorbell_int(struct MPT2SAS_ADAPTER *ioc, int timeout, 2865 int sleep_flag) 2866{ 2867 u32 cntdn, count; 2868 u32 int_status; 2869 2870 count = 0; 2871 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout; 2872 do { 2873 int_status = readl(&ioc->chip->HostInterruptStatus); 2874 if (int_status & MPI2_HIS_IOC2SYS_DB_STATUS) { 2875 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " 2876 "successful count(%d), timeout(%d)\n", ioc->name, 2877 __func__, count, timeout)); 2878 return 0; 2879 } 2880 if (sleep_flag == CAN_SLEEP) 2881 msleep(1); 2882 else 2883 udelay(500); 2884 count++; 2885 } while (--cntdn); 2886 2887 printk(MPT2SAS_ERR_FMT "%s: failed due to timeout count(%d), " 2888 "int_status(%x)!\n", ioc->name, __func__, count, int_status); 2889 return -EFAULT; 2890} 2891 2892/** 2893 * _base_wait_for_doorbell_ack - waiting for controller to read the doorbell. 2894 * @ioc: per adapter object 2895 * @timeout: timeout in second 2896 * @sleep_flag: CAN_SLEEP or NO_SLEEP 2897 * 2898 * Returns 0 for success, non-zero for failure. 2899 * 2900 * Notes: MPI2_HIS_SYS2IOC_DB_STATUS - set to one when host writes to 2901 * doorbell. 2902 */ 2903static int 2904_base_wait_for_doorbell_ack(struct MPT2SAS_ADAPTER *ioc, int timeout, 2905 int sleep_flag) 2906{ 2907 u32 cntdn, count; 2908 u32 int_status; 2909 u32 doorbell; 2910 2911 count = 0; 2912 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout; 2913 do { 2914 int_status = readl(&ioc->chip->HostInterruptStatus); 2915 if (!(int_status & MPI2_HIS_SYS2IOC_DB_STATUS)) { 2916 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " 2917 "successful count(%d), timeout(%d)\n", ioc->name, 2918 __func__, count, timeout)); 2919 return 0; 2920 } else if (int_status & MPI2_HIS_IOC2SYS_DB_STATUS) { 2921 doorbell = readl(&ioc->chip->Doorbell); 2922 if ((doorbell & MPI2_IOC_STATE_MASK) == 2923 MPI2_IOC_STATE_FAULT) { 2924 mpt2sas_base_fault_info(ioc , doorbell); 2925 return -EFAULT; 2926 } 2927 } else if (int_status == 0xFFFFFFFF) 2928 goto out; 2929 2930 if (sleep_flag == CAN_SLEEP) 2931 msleep(1); 2932 else 2933 udelay(500); 2934 count++; 2935 } while (--cntdn); 2936 2937 out: 2938 printk(MPT2SAS_ERR_FMT "%s: failed due to timeout count(%d), " 2939 "int_status(%x)!\n", ioc->name, __func__, count, int_status); 2940 return -EFAULT; 2941} 2942 2943/** 2944 * _base_wait_for_doorbell_not_used - waiting for doorbell to not be in use 2945 * @ioc: per adapter object 2946 * @timeout: timeout in second 2947 * @sleep_flag: CAN_SLEEP or NO_SLEEP 2948 * 2949 * Returns 0 for success, non-zero for failure. 2950 * 2951 */ 2952static int 2953_base_wait_for_doorbell_not_used(struct MPT2SAS_ADAPTER *ioc, int timeout, 2954 int sleep_flag) 2955{ 2956 u32 cntdn, count; 2957 u32 doorbell_reg; 2958 2959 count = 0; 2960 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout; 2961 do { 2962 doorbell_reg = readl(&ioc->chip->Doorbell); 2963 if (!(doorbell_reg & MPI2_DOORBELL_USED)) { 2964 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " 2965 "successful count(%d), timeout(%d)\n", ioc->name, 2966 __func__, count, timeout)); 2967 return 0; 2968 } 2969 if (sleep_flag == CAN_SLEEP) 2970 msleep(1); 2971 else 2972 udelay(500); 2973 count++; 2974 } while (--cntdn); 2975 2976 printk(MPT2SAS_ERR_FMT "%s: failed due to timeout count(%d), " 2977 "doorbell_reg(%x)!\n", ioc->name, __func__, count, doorbell_reg); 2978 return -EFAULT; 2979} 2980 2981/** 2982 * _base_send_ioc_reset - send doorbell reset 2983 * @ioc: per adapter object 2984 * @reset_type: currently only supports: MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET 2985 * @timeout: timeout in second 2986 * @sleep_flag: CAN_SLEEP or NO_SLEEP 2987 * 2988 * Returns 0 for success, non-zero for failure. 2989 */ 2990static int 2991_base_send_ioc_reset(struct MPT2SAS_ADAPTER *ioc, u8 reset_type, int timeout, 2992 int sleep_flag) 2993{ 2994 u32 ioc_state; 2995 int r = 0; 2996 2997 if (reset_type != MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET) { 2998 printk(MPT2SAS_ERR_FMT "%s: unknown reset_type\n", 2999 ioc->name, __func__); 3000 return -EFAULT; 3001 } 3002 3003 if (!(ioc->facts.IOCCapabilities & 3004 MPI2_IOCFACTS_CAPABILITY_EVENT_REPLAY)) 3005 return -EFAULT; 3006 3007 printk(MPT2SAS_INFO_FMT "sending message unit reset !!\n", ioc->name); 3008 3009 writel(reset_type << MPI2_DOORBELL_FUNCTION_SHIFT, 3010 &ioc->chip->Doorbell); 3011 if ((_base_wait_for_doorbell_ack(ioc, 15, sleep_flag))) { 3012 r = -EFAULT; 3013 goto out; 3014 } 3015 ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY, 3016 timeout, sleep_flag); 3017 if (ioc_state) { 3018 printk(MPT2SAS_ERR_FMT "%s: failed going to ready state " 3019 " (ioc_state=0x%x)\n", ioc->name, __func__, ioc_state); 3020 r = -EFAULT; 3021 goto out; 3022 } 3023 out: 3024 printk(MPT2SAS_INFO_FMT "message unit reset: %s\n", 3025 ioc->name, ((r == 0) ? "SUCCESS" : "FAILED")); 3026 return r; 3027} 3028 3029/** 3030 * _base_handshake_req_reply_wait - send request thru doorbell interface 3031 * @ioc: per adapter object 3032 * @request_bytes: request length 3033 * @request: pointer having request payload 3034 * @reply_bytes: reply length 3035 * @reply: pointer to reply payload 3036 * @timeout: timeout in second 3037 * @sleep_flag: CAN_SLEEP or NO_SLEEP 3038 * 3039 * Returns 0 for success, non-zero for failure. 3040 */ 3041static int 3042_base_handshake_req_reply_wait(struct MPT2SAS_ADAPTER *ioc, int request_bytes, 3043 u32 *request, int reply_bytes, u16 *reply, int timeout, int sleep_flag) 3044{ 3045 MPI2DefaultReply_t *default_reply = (MPI2DefaultReply_t *)reply; 3046 int i; 3047 u8 failed; 3048 u16 dummy; 3049 __le32 *mfp; 3050 3051 /* make sure doorbell is not in use */ 3052 if ((readl(&ioc->chip->Doorbell) & MPI2_DOORBELL_USED)) { 3053 printk(MPT2SAS_ERR_FMT "doorbell is in use " 3054 " (line=%d)\n", ioc->name, __LINE__); 3055 return -EFAULT; 3056 } 3057 3058 /* clear pending doorbell interrupts from previous state changes */ 3059 if (readl(&ioc->chip->HostInterruptStatus) & 3060 MPI2_HIS_IOC2SYS_DB_STATUS) 3061 writel(0, &ioc->chip->HostInterruptStatus); 3062 3063 /* send message to ioc */ 3064 writel(((MPI2_FUNCTION_HANDSHAKE<<MPI2_DOORBELL_FUNCTION_SHIFT) | 3065 ((request_bytes/4)<<MPI2_DOORBELL_ADD_DWORDS_SHIFT)), 3066 &ioc->chip->Doorbell); 3067 3068 if ((_base_wait_for_doorbell_int(ioc, 5, NO_SLEEP))) { 3069 printk(MPT2SAS_ERR_FMT "doorbell handshake " 3070 "int failed (line=%d)\n", ioc->name, __LINE__); 3071 return -EFAULT; 3072 } 3073 writel(0, &ioc->chip->HostInterruptStatus); 3074 3075 if ((_base_wait_for_doorbell_ack(ioc, 5, sleep_flag))) { 3076 printk(MPT2SAS_ERR_FMT "doorbell handshake " 3077 "ack failed (line=%d)\n", ioc->name, __LINE__); 3078 return -EFAULT; 3079 } 3080 3081 /* send message 32-bits at a time */ 3082 for (i = 0, failed = 0; i < request_bytes/4 && !failed; i++) { 3083 writel(cpu_to_le32(request[i]), &ioc->chip->Doorbell); 3084 if ((_base_wait_for_doorbell_ack(ioc, 5, sleep_flag))) 3085 failed = 1; 3086 } 3087 3088 if (failed) { 3089 printk(MPT2SAS_ERR_FMT "doorbell handshake " 3090 "sending request failed (line=%d)\n", ioc->name, __LINE__); 3091 return -EFAULT; 3092 } 3093 3094 /* now wait for the reply */ 3095 if ((_base_wait_for_doorbell_int(ioc, timeout, sleep_flag))) { 3096 printk(MPT2SAS_ERR_FMT "doorbell handshake " 3097 "int failed (line=%d)\n", ioc->name, __LINE__); 3098 return -EFAULT; 3099 } 3100 3101 /* read the first two 16-bits, it gives the total length of the reply */ 3102 reply[0] = le16_to_cpu(readl(&ioc->chip->Doorbell) 3103 & MPI2_DOORBELL_DATA_MASK); 3104 writel(0, &ioc->chip->HostInterruptStatus); 3105 if ((_base_wait_for_doorbell_int(ioc, 5, sleep_flag))) { 3106 printk(MPT2SAS_ERR_FMT "doorbell handshake " 3107 "int failed (line=%d)\n", ioc->name, __LINE__); 3108 return -EFAULT; 3109 } 3110 reply[1] = le16_to_cpu(readl(&ioc->chip->Doorbell) 3111 & MPI2_DOORBELL_DATA_MASK); 3112 writel(0, &ioc->chip->HostInterruptStatus); 3113 3114 for (i = 2; i < default_reply->MsgLength * 2; i++) { 3115 if ((_base_wait_for_doorbell_int(ioc, 5, sleep_flag))) { 3116 printk(MPT2SAS_ERR_FMT "doorbell " 3117 "handshake int failed (line=%d)\n", ioc->name, 3118 __LINE__); 3119 return -EFAULT; 3120 } 3121 if (i >= reply_bytes/2) /* overflow case */ 3122 dummy = readl(&ioc->chip->Doorbell); 3123 else 3124 reply[i] = le16_to_cpu(readl(&ioc->chip->Doorbell) 3125 & MPI2_DOORBELL_DATA_MASK); 3126 writel(0, &ioc->chip->HostInterruptStatus); 3127 } 3128 3129 _base_wait_for_doorbell_int(ioc, 5, sleep_flag); 3130 if (_base_wait_for_doorbell_not_used(ioc, 5, sleep_flag) != 0) { 3131 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "doorbell is in use " 3132 " (line=%d)\n", ioc->name, __LINE__)); 3133 } 3134 writel(0, &ioc->chip->HostInterruptStatus); 3135 3136 if (ioc->logging_level & MPT_DEBUG_INIT) { 3137 mfp = (__le32 *)reply; 3138 printk(KERN_INFO "\toffset:data\n"); 3139 for (i = 0; i < reply_bytes/4; i++) 3140 printk(KERN_INFO "\t[0x%02x]:%08x\n", i*4, 3141 le32_to_cpu(mfp[i])); 3142 } 3143 return 0; 3144} 3145 3146/** 3147 * mpt2sas_base_sas_iounit_control - send sas iounit control to FW 3148 * @ioc: per adapter object 3149 * @mpi_reply: the reply payload from FW 3150 * @mpi_request: the request payload sent to FW 3151 * 3152 * The SAS IO Unit Control Request message allows the host to perform low-level 3153 * operations, such as resets on the PHYs of the IO Unit, also allows the host 3154 * to obtain the IOC assigned device handles for a device if it has other 3155 * identifying information about the device, in addition allows the host to 3156 * remove IOC resources associated with the device. 3157 * 3158 * Returns 0 for success, non-zero for failure. 3159 */ 3160int 3161mpt2sas_base_sas_iounit_control(struct MPT2SAS_ADAPTER *ioc, 3162 Mpi2SasIoUnitControlReply_t *mpi_reply, 3163 Mpi2SasIoUnitControlRequest_t *mpi_request) 3164{ 3165 u16 smid; 3166 u32 ioc_state; 3167 unsigned long timeleft; 3168 u8 issue_reset; 3169 int rc; 3170 void *request; 3171 u16 wait_state_count; 3172 3173 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 3174 __func__)); 3175 3176 mutex_lock(&ioc->base_cmds.mutex); 3177 3178 if (ioc->base_cmds.status != MPT2_CMD_NOT_USED) { 3179 printk(MPT2SAS_ERR_FMT "%s: base_cmd in use\n", 3180 ioc->name, __func__); 3181 rc = -EAGAIN; 3182 goto out; 3183 } 3184 3185 wait_state_count = 0; 3186 ioc_state = mpt2sas_base_get_iocstate(ioc, 1); 3187 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { 3188 if (wait_state_count++ == 10) { 3189 printk(MPT2SAS_ERR_FMT 3190 "%s: failed due to ioc not operational\n", 3191 ioc->name, __func__); 3192 rc = -EFAULT; 3193 goto out; 3194 } 3195 ssleep(1); 3196 ioc_state = mpt2sas_base_get_iocstate(ioc, 1); 3197 printk(MPT2SAS_INFO_FMT "%s: waiting for " 3198 "operational state(count=%d)\n", ioc->name, 3199 __func__, wait_state_count); 3200 } 3201 3202 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx); 3203 if (!smid) { 3204 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", 3205 ioc->name, __func__); 3206 rc = -EAGAIN; 3207 goto out; 3208 } 3209 3210 rc = 0; 3211 ioc->base_cmds.status = MPT2_CMD_PENDING; 3212 request = mpt2sas_base_get_msg_frame(ioc, smid); 3213 ioc->base_cmds.smid = smid; 3214 memcpy(request, mpi_request, sizeof(Mpi2SasIoUnitControlRequest_t)); 3215 if (mpi_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET || 3216 mpi_request->Operation == MPI2_SAS_OP_PHY_LINK_RESET) 3217 ioc->ioc_link_reset_in_progress = 1; 3218 init_completion(&ioc->base_cmds.done); 3219 mpt2sas_base_put_smid_default(ioc, smid); 3220 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done, 3221 msecs_to_jiffies(10000)); 3222 if ((mpi_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET || 3223 mpi_request->Operation == MPI2_SAS_OP_PHY_LINK_RESET) && 3224 ioc->ioc_link_reset_in_progress) 3225 ioc->ioc_link_reset_in_progress = 0; 3226 if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) { 3227 printk(MPT2SAS_ERR_FMT "%s: timeout\n", 3228 ioc->name, __func__); 3229 _debug_dump_mf(mpi_request, 3230 sizeof(Mpi2SasIoUnitControlRequest_t)/4); 3231 if (!(ioc->base_cmds.status & MPT2_CMD_RESET)) 3232 issue_reset = 1; 3233 goto issue_host_reset; 3234 } 3235 if (ioc->base_cmds.status & MPT2_CMD_REPLY_VALID) 3236 memcpy(mpi_reply, ioc->base_cmds.reply, 3237 sizeof(Mpi2SasIoUnitControlReply_t)); 3238 else 3239 memset(mpi_reply, 0, sizeof(Mpi2SasIoUnitControlReply_t)); 3240 ioc->base_cmds.status = MPT2_CMD_NOT_USED; 3241 goto out; 3242 3243 issue_host_reset: 3244 if (issue_reset) 3245 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, 3246 FORCE_BIG_HAMMER); 3247 ioc->base_cmds.status = MPT2_CMD_NOT_USED; 3248 rc = -EFAULT; 3249 out: 3250 mutex_unlock(&ioc->base_cmds.mutex); 3251 return rc; 3252} 3253 3254 3255/** 3256 * mpt2sas_base_scsi_enclosure_processor - sending request to sep device 3257 * @ioc: per adapter object 3258 * @mpi_reply: the reply payload from FW 3259 * @mpi_request: the request payload sent to FW 3260 * 3261 * The SCSI Enclosure Processor request message causes the IOC to 3262 * communicate with SES devices to control LED status signals. 3263 * 3264 * Returns 0 for success, non-zero for failure. 3265 */ 3266int 3267mpt2sas_base_scsi_enclosure_processor(struct MPT2SAS_ADAPTER *ioc, 3268 Mpi2SepReply_t *mpi_reply, Mpi2SepRequest_t *mpi_request) 3269{ 3270 u16 smid; 3271 u32 ioc_state; 3272 unsigned long timeleft; 3273 u8 issue_reset; 3274 int rc; 3275 void *request; 3276 u16 wait_state_count; 3277 3278 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 3279 __func__)); 3280 3281 mutex_lock(&ioc->base_cmds.mutex); 3282 3283 if (ioc->base_cmds.status != MPT2_CMD_NOT_USED) { 3284 printk(MPT2SAS_ERR_FMT "%s: base_cmd in use\n", 3285 ioc->name, __func__); 3286 rc = -EAGAIN; 3287 goto out; 3288 } 3289 3290 wait_state_count = 0; 3291 ioc_state = mpt2sas_base_get_iocstate(ioc, 1); 3292 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { 3293 if (wait_state_count++ == 10) { 3294 printk(MPT2SAS_ERR_FMT 3295 "%s: failed due to ioc not operational\n", 3296 ioc->name, __func__); 3297 rc = -EFAULT; 3298 goto out; 3299 } 3300 ssleep(1); 3301 ioc_state = mpt2sas_base_get_iocstate(ioc, 1); 3302 printk(MPT2SAS_INFO_FMT "%s: waiting for " 3303 "operational state(count=%d)\n", ioc->name, 3304 __func__, wait_state_count); 3305 } 3306 3307 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx); 3308 if (!smid) { 3309 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", 3310 ioc->name, __func__); 3311 rc = -EAGAIN; 3312 goto out; 3313 } 3314 3315 rc = 0; 3316 ioc->base_cmds.status = MPT2_CMD_PENDING; 3317 request = mpt2sas_base_get_msg_frame(ioc, smid); 3318 ioc->base_cmds.smid = smid; 3319 memcpy(request, mpi_request, sizeof(Mpi2SepReply_t)); 3320 init_completion(&ioc->base_cmds.done); 3321 mpt2sas_base_put_smid_default(ioc, smid); 3322 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done, 3323 msecs_to_jiffies(10000)); 3324 if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) { 3325 printk(MPT2SAS_ERR_FMT "%s: timeout\n", 3326 ioc->name, __func__); 3327 _debug_dump_mf(mpi_request, 3328 sizeof(Mpi2SepRequest_t)/4); 3329 if (!(ioc->base_cmds.status & MPT2_CMD_RESET)) 3330 issue_reset = 1; 3331 goto issue_host_reset; 3332 } 3333 if (ioc->base_cmds.status & MPT2_CMD_REPLY_VALID) 3334 memcpy(mpi_reply, ioc->base_cmds.reply, 3335 sizeof(Mpi2SepReply_t)); 3336 else 3337 memset(mpi_reply, 0, sizeof(Mpi2SepReply_t)); 3338 ioc->base_cmds.status = MPT2_CMD_NOT_USED; 3339 goto out; 3340 3341 issue_host_reset: 3342 if (issue_reset) 3343 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, 3344 FORCE_BIG_HAMMER); 3345 ioc->base_cmds.status = MPT2_CMD_NOT_USED; 3346 rc = -EFAULT; 3347 out: 3348 mutex_unlock(&ioc->base_cmds.mutex); 3349 return rc; 3350} 3351 3352/** 3353 * _base_get_port_facts - obtain port facts reply and save in ioc 3354 * @ioc: per adapter object 3355 * @sleep_flag: CAN_SLEEP or NO_SLEEP 3356 * 3357 * Returns 0 for success, non-zero for failure. 3358 */ 3359static int 3360_base_get_port_facts(struct MPT2SAS_ADAPTER *ioc, int port, int sleep_flag) 3361{ 3362 Mpi2PortFactsRequest_t mpi_request; 3363 Mpi2PortFactsReply_t mpi_reply; 3364 struct mpt2sas_port_facts *pfacts; 3365 int mpi_reply_sz, mpi_request_sz, r; 3366 3367 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 3368 __func__)); 3369 3370 mpi_reply_sz = sizeof(Mpi2PortFactsReply_t); 3371 mpi_request_sz = sizeof(Mpi2PortFactsRequest_t); 3372 memset(&mpi_request, 0, mpi_request_sz); 3373 mpi_request.Function = MPI2_FUNCTION_PORT_FACTS; 3374 mpi_request.PortNumber = port; 3375 r = _base_handshake_req_reply_wait(ioc, mpi_request_sz, 3376 (u32 *)&mpi_request, mpi_reply_sz, (u16 *)&mpi_reply, 5, CAN_SLEEP); 3377 3378 if (r != 0) { 3379 printk(MPT2SAS_ERR_FMT "%s: handshake failed (r=%d)\n", 3380 ioc->name, __func__, r); 3381 return r; 3382 } 3383 3384 pfacts = &ioc->pfacts[port]; 3385 memset(pfacts, 0, sizeof(struct mpt2sas_port_facts)); 3386 pfacts->PortNumber = mpi_reply.PortNumber; 3387 pfacts->VP_ID = mpi_reply.VP_ID; 3388 pfacts->VF_ID = mpi_reply.VF_ID; 3389 pfacts->MaxPostedCmdBuffers = 3390 le16_to_cpu(mpi_reply.MaxPostedCmdBuffers); 3391 3392 return 0; 3393} 3394 3395/** 3396 * _base_get_ioc_facts - obtain ioc facts reply and save in ioc 3397 * @ioc: per adapter object 3398 * @sleep_flag: CAN_SLEEP or NO_SLEEP 3399 * 3400 * Returns 0 for success, non-zero for failure. 3401 */ 3402static int 3403_base_get_ioc_facts(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) 3404{ 3405 Mpi2IOCFactsRequest_t mpi_request; 3406 Mpi2IOCFactsReply_t mpi_reply; 3407 struct mpt2sas_facts *facts; 3408 int mpi_reply_sz, mpi_request_sz, r; 3409 3410 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 3411 __func__)); 3412 3413 mpi_reply_sz = sizeof(Mpi2IOCFactsReply_t); 3414 mpi_request_sz = sizeof(Mpi2IOCFactsRequest_t); 3415 memset(&mpi_request, 0, mpi_request_sz); 3416 mpi_request.Function = MPI2_FUNCTION_IOC_FACTS; 3417 r = _base_handshake_req_reply_wait(ioc, mpi_request_sz, 3418 (u32 *)&mpi_request, mpi_reply_sz, (u16 *)&mpi_reply, 5, CAN_SLEEP); 3419 3420 if (r != 0) { 3421 printk(MPT2SAS_ERR_FMT "%s: handshake failed (r=%d)\n", 3422 ioc->name, __func__, r); 3423 return r; 3424 } 3425 3426 facts = &ioc->facts; 3427 memset(facts, 0, sizeof(struct mpt2sas_facts)); 3428 facts->MsgVersion = le16_to_cpu(mpi_reply.MsgVersion); 3429 facts->HeaderVersion = le16_to_cpu(mpi_reply.HeaderVersion); 3430 facts->VP_ID = mpi_reply.VP_ID; 3431 facts->VF_ID = mpi_reply.VF_ID; 3432 facts->IOCExceptions = le16_to_cpu(mpi_reply.IOCExceptions); 3433 facts->MaxChainDepth = mpi_reply.MaxChainDepth; 3434 facts->WhoInit = mpi_reply.WhoInit; 3435 facts->NumberOfPorts = mpi_reply.NumberOfPorts; 3436 facts->MaxMSIxVectors = mpi_reply.MaxMSIxVectors; 3437 facts->RequestCredit = le16_to_cpu(mpi_reply.RequestCredit); 3438 facts->MaxReplyDescriptorPostQueueDepth = 3439 le16_to_cpu(mpi_reply.MaxReplyDescriptorPostQueueDepth); 3440 facts->ProductID = le16_to_cpu(mpi_reply.ProductID); 3441 facts->IOCCapabilities = le32_to_cpu(mpi_reply.IOCCapabilities); 3442 if ((facts->IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID)) 3443 ioc->ir_firmware = 1; 3444 facts->FWVersion.Word = le32_to_cpu(mpi_reply.FWVersion.Word); 3445 facts->IOCRequestFrameSize = 3446 le16_to_cpu(mpi_reply.IOCRequestFrameSize); 3447 facts->MaxInitiators = le16_to_cpu(mpi_reply.MaxInitiators); 3448 facts->MaxTargets = le16_to_cpu(mpi_reply.MaxTargets); 3449 ioc->shost->max_id = -1; 3450 facts->MaxSasExpanders = le16_to_cpu(mpi_reply.MaxSasExpanders); 3451 facts->MaxEnclosures = le16_to_cpu(mpi_reply.MaxEnclosures); 3452 facts->ProtocolFlags = le16_to_cpu(mpi_reply.ProtocolFlags); 3453 facts->HighPriorityCredit = 3454 le16_to_cpu(mpi_reply.HighPriorityCredit); 3455 facts->ReplyFrameSize = mpi_reply.ReplyFrameSize; 3456 facts->MaxDevHandle = le16_to_cpu(mpi_reply.MaxDevHandle); 3457 3458 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "hba queue depth(%d), " 3459 "max chains per io(%d)\n", ioc->name, facts->RequestCredit, 3460 facts->MaxChainDepth)); 3461 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "request frame size(%d), " 3462 "reply frame size(%d)\n", ioc->name, 3463 facts->IOCRequestFrameSize * 4, facts->ReplyFrameSize * 4)); 3464 return 0; 3465} 3466 3467/** 3468 * _base_send_ioc_init - send ioc_init to firmware 3469 * @ioc: per adapter object 3470 * @sleep_flag: CAN_SLEEP or NO_SLEEP 3471 * 3472 * Returns 0 for success, non-zero for failure. 3473 */ 3474static int 3475_base_send_ioc_init(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) 3476{ 3477 Mpi2IOCInitRequest_t mpi_request; 3478 Mpi2IOCInitReply_t mpi_reply; 3479 int r; 3480 struct timeval current_time; 3481 u16 ioc_status; 3482 3483 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 3484 __func__)); 3485 3486 memset(&mpi_request, 0, sizeof(Mpi2IOCInitRequest_t)); 3487 mpi_request.Function = MPI2_FUNCTION_IOC_INIT; 3488 mpi_request.WhoInit = MPI2_WHOINIT_HOST_DRIVER; 3489 mpi_request.VF_ID = 0; /* TODO */ 3490 mpi_request.VP_ID = 0; 3491 mpi_request.MsgVersion = cpu_to_le16(MPI2_VERSION); 3492 mpi_request.HeaderVersion = cpu_to_le16(MPI2_HEADER_VERSION); 3493 3494 if (_base_is_controller_msix_enabled(ioc)) 3495 mpi_request.HostMSIxVectors = ioc->reply_queue_count; 3496 mpi_request.SystemRequestFrameSize = cpu_to_le16(ioc->request_sz/4); 3497 mpi_request.ReplyDescriptorPostQueueDepth = 3498 cpu_to_le16(ioc->reply_post_queue_depth); 3499 mpi_request.ReplyFreeQueueDepth = 3500 cpu_to_le16(ioc->reply_free_queue_depth); 3501 3502 mpi_request.SenseBufferAddressHigh = 3503 cpu_to_le32((u64)ioc->sense_dma >> 32); 3504 mpi_request.SystemReplyAddressHigh = 3505 cpu_to_le32((u64)ioc->reply_dma >> 32); 3506 mpi_request.SystemRequestFrameBaseAddress = 3507 cpu_to_le64((u64)ioc->request_dma); 3508 mpi_request.ReplyFreeQueueAddress = 3509 cpu_to_le64((u64)ioc->reply_free_dma); 3510 mpi_request.ReplyDescriptorPostQueueAddress = 3511 cpu_to_le64((u64)ioc->reply_post_free_dma); 3512 3513 3514 /* This time stamp specifies number of milliseconds 3515 * since epoch ~ midnight January 1, 1970. 3516 */ 3517 do_gettimeofday(¤t_time); 3518 mpi_request.TimeStamp = cpu_to_le64((u64)current_time.tv_sec * 1000 + 3519 (current_time.tv_usec / 1000)); 3520 3521 if (ioc->logging_level & MPT_DEBUG_INIT) { 3522 __le32 *mfp; 3523 int i; 3524 3525 mfp = (__le32 *)&mpi_request; 3526 printk(KERN_INFO "\toffset:data\n"); 3527 for (i = 0; i < sizeof(Mpi2IOCInitRequest_t)/4; i++) 3528 printk(KERN_INFO "\t[0x%02x]:%08x\n", i*4, 3529 le32_to_cpu(mfp[i])); 3530 } 3531 3532 r = _base_handshake_req_reply_wait(ioc, 3533 sizeof(Mpi2IOCInitRequest_t), (u32 *)&mpi_request, 3534 sizeof(Mpi2IOCInitReply_t), (u16 *)&mpi_reply, 10, 3535 sleep_flag); 3536 3537 if (r != 0) { 3538 printk(MPT2SAS_ERR_FMT "%s: handshake failed (r=%d)\n", 3539 ioc->name, __func__, r); 3540 return r; 3541 } 3542 3543 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK; 3544 if (ioc_status != MPI2_IOCSTATUS_SUCCESS || 3545 mpi_reply.IOCLogInfo) { 3546 printk(MPT2SAS_ERR_FMT "%s: failed\n", ioc->name, __func__); 3547 r = -EIO; 3548 } 3549 3550 return 0; 3551} 3552 3553/** 3554 * mpt2sas_port_enable_done - command completion routine for port enable 3555 * @ioc: per adapter object 3556 * @smid: system request message index 3557 * @msix_index: MSIX table index supplied by the OS 3558 * @reply: reply message frame(lower 32bit addr) 3559 * 3560 * Return 1 meaning mf should be freed from _base_interrupt 3561 * 0 means the mf is freed from this function. 3562 */ 3563u8 3564mpt2sas_port_enable_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, 3565 u32 reply) 3566{ 3567 MPI2DefaultReply_t *mpi_reply; 3568 u16 ioc_status; 3569 3570 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); 3571 if (mpi_reply && mpi_reply->Function == MPI2_FUNCTION_EVENT_ACK) 3572 return 1; 3573 3574 if (ioc->port_enable_cmds.status == MPT2_CMD_NOT_USED) 3575 return 1; 3576 3577 ioc->port_enable_cmds.status |= MPT2_CMD_COMPLETE; 3578 if (mpi_reply) { 3579 ioc->port_enable_cmds.status |= MPT2_CMD_REPLY_VALID; 3580 memcpy(ioc->port_enable_cmds.reply, mpi_reply, 3581 mpi_reply->MsgLength*4); 3582 } 3583 ioc->port_enable_cmds.status &= ~MPT2_CMD_PENDING; 3584 3585 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK; 3586 3587 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) 3588 ioc->port_enable_failed = 1; 3589 3590 if (ioc->is_driver_loading) { 3591 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) { 3592 mpt2sas_port_enable_complete(ioc); 3593 return 1; 3594 } else { 3595 ioc->start_scan_failed = ioc_status; 3596 ioc->start_scan = 0; 3597 return 1; 3598 } 3599 } 3600 complete(&ioc->port_enable_cmds.done); 3601 return 1; 3602} 3603 3604 3605/** 3606 * _base_send_port_enable - send port_enable(discovery stuff) to firmware 3607 * @ioc: per adapter object 3608 * @sleep_flag: CAN_SLEEP or NO_SLEEP 3609 * 3610 * Returns 0 for success, non-zero for failure. 3611 */ 3612static int 3613_base_send_port_enable(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) 3614{ 3615 Mpi2PortEnableRequest_t *mpi_request; 3616 Mpi2PortEnableReply_t *mpi_reply; 3617 unsigned long timeleft; 3618 int r = 0; 3619 u16 smid; 3620 u16 ioc_status; 3621 3622 printk(MPT2SAS_INFO_FMT "sending port enable !!\n", ioc->name); 3623 3624 if (ioc->port_enable_cmds.status & MPT2_CMD_PENDING) { 3625 printk(MPT2SAS_ERR_FMT "%s: internal command already in use\n", 3626 ioc->name, __func__); 3627 return -EAGAIN; 3628 } 3629 3630 smid = mpt2sas_base_get_smid(ioc, ioc->port_enable_cb_idx); 3631 if (!smid) { 3632 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", 3633 ioc->name, __func__); 3634 return -EAGAIN; 3635 } 3636 3637 ioc->port_enable_cmds.status = MPT2_CMD_PENDING; 3638 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); 3639 ioc->port_enable_cmds.smid = smid; 3640 memset(mpi_request, 0, sizeof(Mpi2PortEnableRequest_t)); 3641 mpi_request->Function = MPI2_FUNCTION_PORT_ENABLE; 3642 3643 init_completion(&ioc->port_enable_cmds.done); 3644 mpt2sas_base_put_smid_default(ioc, smid); 3645 timeleft = wait_for_completion_timeout(&ioc->port_enable_cmds.done, 3646 300*HZ); 3647 if (!(ioc->port_enable_cmds.status & MPT2_CMD_COMPLETE)) { 3648 printk(MPT2SAS_ERR_FMT "%s: timeout\n", 3649 ioc->name, __func__); 3650 _debug_dump_mf(mpi_request, 3651 sizeof(Mpi2PortEnableRequest_t)/4); 3652 if (ioc->port_enable_cmds.status & MPT2_CMD_RESET) 3653 r = -EFAULT; 3654 else 3655 r = -ETIME; 3656 goto out; 3657 } 3658 mpi_reply = ioc->port_enable_cmds.reply; 3659 3660 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK; 3661 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 3662 printk(MPT2SAS_ERR_FMT "%s: failed with (ioc_status=0x%08x)\n", 3663 ioc->name, __func__, ioc_status); 3664 r = -EFAULT; 3665 goto out; 3666 } 3667 out: 3668 ioc->port_enable_cmds.status = MPT2_CMD_NOT_USED; 3669 printk(MPT2SAS_INFO_FMT "port enable: %s\n", ioc->name, ((r == 0) ? 3670 "SUCCESS" : "FAILED")); 3671 return r; 3672} 3673 3674/** 3675 * mpt2sas_port_enable - initiate firmware discovery (don't wait for reply) 3676 * @ioc: per adapter object 3677 * 3678 * Returns 0 for success, non-zero for failure. 3679 */ 3680int 3681mpt2sas_port_enable(struct MPT2SAS_ADAPTER *ioc) 3682{ 3683 Mpi2PortEnableRequest_t *mpi_request; 3684 u16 smid; 3685 3686 printk(MPT2SAS_INFO_FMT "sending port enable !!\n", ioc->name); 3687 3688 if (ioc->port_enable_cmds.status & MPT2_CMD_PENDING) { 3689 printk(MPT2SAS_ERR_FMT "%s: internal command already in use\n", 3690 ioc->name, __func__); 3691 return -EAGAIN; 3692 } 3693 3694 smid = mpt2sas_base_get_smid(ioc, ioc->port_enable_cb_idx); 3695 if (!smid) { 3696 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", 3697 ioc->name, __func__); 3698 return -EAGAIN; 3699 } 3700 3701 ioc->port_enable_cmds.status = MPT2_CMD_PENDING; 3702 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); 3703 ioc->port_enable_cmds.smid = smid; 3704 memset(mpi_request, 0, sizeof(Mpi2PortEnableRequest_t)); 3705 mpi_request->Function = MPI2_FUNCTION_PORT_ENABLE; 3706 3707 mpt2sas_base_put_smid_default(ioc, smid); 3708 return 0; 3709} 3710 3711/** 3712 * _base_determine_wait_on_discovery - desposition 3713 * @ioc: per adapter object 3714 * 3715 * Decide whether to wait on discovery to complete. Used to either 3716 * locate boot device, or report volumes ahead of physical devices. 3717 * 3718 * Returns 1 for wait, 0 for don't wait 3719 */ 3720static int 3721_base_determine_wait_on_discovery(struct MPT2SAS_ADAPTER *ioc) 3722{ 3723 /* We wait for discovery to complete if IR firmware is loaded. 3724 * The sas topology events arrive before PD events, so we need time to 3725 * turn on the bit in ioc->pd_handles to indicate PD 3726 * Also, it maybe required to report Volumes ahead of physical 3727 * devices when MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING is set. 3728 */ 3729 if (ioc->ir_firmware) 3730 return 1; 3731 3732 /* if no Bios, then we don't need to wait */ 3733 if (!ioc->bios_pg3.BiosVersion) 3734 return 0; 3735 3736 /* Bios is present, then we drop down here. 3737 * 3738 * If there any entries in the Bios Page 2, then we wait 3739 * for discovery to complete. 3740 */ 3741 3742 /* Current Boot Device */ 3743 if ((ioc->bios_pg2.CurrentBootDeviceForm & 3744 MPI2_BIOSPAGE2_FORM_MASK) == 3745 MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED && 3746 /* Request Boot Device */ 3747 (ioc->bios_pg2.ReqBootDeviceForm & 3748 MPI2_BIOSPAGE2_FORM_MASK) == 3749 MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED && 3750 /* Alternate Request Boot Device */ 3751 (ioc->bios_pg2.ReqAltBootDeviceForm & 3752 MPI2_BIOSPAGE2_FORM_MASK) == 3753 MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED) 3754 return 0; 3755 3756 return 1; 3757} 3758 3759 3760/** 3761 * _base_unmask_events - turn on notification for this event 3762 * @ioc: per adapter object 3763 * @event: firmware event 3764 * 3765 * The mask is stored in ioc->event_masks. 3766 */ 3767static void 3768_base_unmask_events(struct MPT2SAS_ADAPTER *ioc, u16 event) 3769{ 3770 u32 desired_event; 3771 3772 if (event >= 128) 3773 return; 3774 3775 desired_event = (1 << (event % 32)); 3776 3777 if (event < 32) 3778 ioc->event_masks[0] &= ~desired_event; 3779 else if (event < 64) 3780 ioc->event_masks[1] &= ~desired_event; 3781 else if (event < 96) 3782 ioc->event_masks[2] &= ~desired_event; 3783 else if (event < 128) 3784 ioc->event_masks[3] &= ~desired_event; 3785} 3786 3787/** 3788 * _base_event_notification - send event notification 3789 * @ioc: per adapter object 3790 * @sleep_flag: CAN_SLEEP or NO_SLEEP 3791 * 3792 * Returns 0 for success, non-zero for failure. 3793 */ 3794static int 3795_base_event_notification(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) 3796{ 3797 Mpi2EventNotificationRequest_t *mpi_request; 3798 unsigned long timeleft; 3799 u16 smid; 3800 int r = 0; 3801 int i; 3802 3803 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 3804 __func__)); 3805 3806 if (ioc->base_cmds.status & MPT2_CMD_PENDING) { 3807 printk(MPT2SAS_ERR_FMT "%s: internal command already in use\n", 3808 ioc->name, __func__); 3809 return -EAGAIN; 3810 } 3811 3812 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx); 3813 if (!smid) { 3814 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", 3815 ioc->name, __func__); 3816 return -EAGAIN; 3817 } 3818 ioc->base_cmds.status = MPT2_CMD_PENDING; 3819 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); 3820 ioc->base_cmds.smid = smid; 3821 memset(mpi_request, 0, sizeof(Mpi2EventNotificationRequest_t)); 3822 mpi_request->Function = MPI2_FUNCTION_EVENT_NOTIFICATION; 3823 mpi_request->VF_ID = 0; /* TODO */ 3824 mpi_request->VP_ID = 0; 3825 for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++) 3826 mpi_request->EventMasks[i] = 3827 cpu_to_le32(ioc->event_masks[i]); 3828 init_completion(&ioc->base_cmds.done); 3829 mpt2sas_base_put_smid_default(ioc, smid); 3830 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done, 30*HZ); 3831 if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) { 3832 printk(MPT2SAS_ERR_FMT "%s: timeout\n", 3833 ioc->name, __func__); 3834 _debug_dump_mf(mpi_request, 3835 sizeof(Mpi2EventNotificationRequest_t)/4); 3836 if (ioc->base_cmds.status & MPT2_CMD_RESET) 3837 r = -EFAULT; 3838 else 3839 r = -ETIME; 3840 } else 3841 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: complete\n", 3842 ioc->name, __func__)); 3843 ioc->base_cmds.status = MPT2_CMD_NOT_USED; 3844 return r; 3845} 3846 3847/** 3848 * mpt2sas_base_validate_event_type - validating event types 3849 * @ioc: per adapter object 3850 * @event: firmware event 3851 * 3852 * This will turn on firmware event notification when application 3853 * ask for that event. We don't mask events that are already enabled. 3854 */ 3855void 3856mpt2sas_base_validate_event_type(struct MPT2SAS_ADAPTER *ioc, u32 *event_type) 3857{ 3858 int i, j; 3859 u32 event_mask, desired_event; 3860 u8 send_update_to_fw; 3861 3862 for (i = 0, send_update_to_fw = 0; i < 3863 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++) { 3864 event_mask = ~event_type[i]; 3865 desired_event = 1; 3866 for (j = 0; j < 32; j++) { 3867 if (!(event_mask & desired_event) && 3868 (ioc->event_masks[i] & desired_event)) { 3869 ioc->event_masks[i] &= ~desired_event; 3870 send_update_to_fw = 1; 3871 } 3872 desired_event = (desired_event << 1); 3873 } 3874 } 3875 3876 if (!send_update_to_fw) 3877 return; 3878 3879 mutex_lock(&ioc->base_cmds.mutex); 3880 _base_event_notification(ioc, CAN_SLEEP); 3881 mutex_unlock(&ioc->base_cmds.mutex); 3882} 3883 3884/** 3885 * _base_diag_reset - the "big hammer" start of day reset 3886 * @ioc: per adapter object 3887 * @sleep_flag: CAN_SLEEP or NO_SLEEP 3888 * 3889 * Returns 0 for success, non-zero for failure. 3890 */ 3891static int 3892_base_diag_reset(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) 3893{ 3894 u32 host_diagnostic; 3895 u32 ioc_state; 3896 u32 count; 3897 u32 hcb_size; 3898 3899 printk(MPT2SAS_INFO_FMT "sending diag reset !!\n", ioc->name); 3900 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "clear interrupts\n", 3901 ioc->name)); 3902 3903 count = 0; 3904 do { 3905 /* Write magic sequence to WriteSequence register 3906 * Loop until in diagnostic mode 3907 */ 3908 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "write magic " 3909 "sequence\n", ioc->name)); 3910 writel(MPI2_WRSEQ_FLUSH_KEY_VALUE, &ioc->chip->WriteSequence); 3911 writel(MPI2_WRSEQ_1ST_KEY_VALUE, &ioc->chip->WriteSequence); 3912 writel(MPI2_WRSEQ_2ND_KEY_VALUE, &ioc->chip->WriteSequence); 3913 writel(MPI2_WRSEQ_3RD_KEY_VALUE, &ioc->chip->WriteSequence); 3914 writel(MPI2_WRSEQ_4TH_KEY_VALUE, &ioc->chip->WriteSequence); 3915 writel(MPI2_WRSEQ_5TH_KEY_VALUE, &ioc->chip->WriteSequence); 3916 writel(MPI2_WRSEQ_6TH_KEY_VALUE, &ioc->chip->WriteSequence); 3917 3918 /* wait 100 msec */ 3919 if (sleep_flag == CAN_SLEEP) 3920 msleep(100); 3921 else 3922 mdelay(100); 3923 3924 if (count++ > 20) 3925 goto out; 3926 3927 host_diagnostic = readl(&ioc->chip->HostDiagnostic); 3928 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "wrote magic " 3929 "sequence: count(%d), host_diagnostic(0x%08x)\n", 3930 ioc->name, count, host_diagnostic)); 3931 3932 } while ((host_diagnostic & MPI2_DIAG_DIAG_WRITE_ENABLE) == 0); 3933 3934 hcb_size = readl(&ioc->chip->HCBSize); 3935 3936 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "diag reset: issued\n", 3937 ioc->name)); 3938 writel(host_diagnostic | MPI2_DIAG_RESET_ADAPTER, 3939 &ioc->chip->HostDiagnostic); 3940 3941 /* This delay allows the chip PCIe hardware time to finish reset tasks*/ 3942 if (sleep_flag == CAN_SLEEP) 3943 msleep(MPI2_HARD_RESET_PCIE_FIRST_READ_DELAY_MICRO_SEC/1000); 3944 else 3945 mdelay(MPI2_HARD_RESET_PCIE_FIRST_READ_DELAY_MICRO_SEC/1000); 3946 3947 /* Approximately 300 second max wait */ 3948 for (count = 0; count < (300000000 / 3949 MPI2_HARD_RESET_PCIE_SECOND_READ_DELAY_MICRO_SEC); count++) { 3950 3951 host_diagnostic = readl(&ioc->chip->HostDiagnostic); 3952 3953 if (host_diagnostic == 0xFFFFFFFF) 3954 goto out; 3955 if (!(host_diagnostic & MPI2_DIAG_RESET_ADAPTER)) 3956 break; 3957 3958 /* Wait to pass the second read delay window */ 3959 if (sleep_flag == CAN_SLEEP) 3960 msleep(MPI2_HARD_RESET_PCIE_SECOND_READ_DELAY_MICRO_SEC 3961 /1000); 3962 else 3963 mdelay(MPI2_HARD_RESET_PCIE_SECOND_READ_DELAY_MICRO_SEC 3964 /1000); 3965 } 3966 3967 if (host_diagnostic & MPI2_DIAG_HCB_MODE) { 3968 3969 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "restart the adapter " 3970 "assuming the HCB Address points to good F/W\n", 3971 ioc->name)); 3972 host_diagnostic &= ~MPI2_DIAG_BOOT_DEVICE_SELECT_MASK; 3973 host_diagnostic |= MPI2_DIAG_BOOT_DEVICE_SELECT_HCDW; 3974 writel(host_diagnostic, &ioc->chip->HostDiagnostic); 3975 3976 drsprintk(ioc, printk(MPT2SAS_INFO_FMT 3977 "re-enable the HCDW\n", ioc->name)); 3978 writel(hcb_size | MPI2_HCB_SIZE_HCB_ENABLE, 3979 &ioc->chip->HCBSize); 3980 } 3981 3982 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "restart the adapter\n", 3983 ioc->name)); 3984 writel(host_diagnostic & ~MPI2_DIAG_HOLD_IOC_RESET, 3985 &ioc->chip->HostDiagnostic); 3986 3987 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "disable writes to the " 3988 "diagnostic register\n", ioc->name)); 3989 writel(MPI2_WRSEQ_FLUSH_KEY_VALUE, &ioc->chip->WriteSequence); 3990 3991 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "Wait for FW to go to the " 3992 "READY state\n", ioc->name)); 3993 ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY, 20, 3994 sleep_flag); 3995 if (ioc_state) { 3996 printk(MPT2SAS_ERR_FMT "%s: failed going to ready state " 3997 " (ioc_state=0x%x)\n", ioc->name, __func__, ioc_state); 3998 goto out; 3999 } 4000 4001 printk(MPT2SAS_INFO_FMT "diag reset: SUCCESS\n", ioc->name); 4002 return 0; 4003 4004 out: 4005 printk(MPT2SAS_ERR_FMT "diag reset: FAILED\n", ioc->name); 4006 return -EFAULT; 4007} 4008 4009/** 4010 * _base_make_ioc_ready - put controller in READY state 4011 * @ioc: per adapter object 4012 * @sleep_flag: CAN_SLEEP or NO_SLEEP 4013 * @type: FORCE_BIG_HAMMER or SOFT_RESET 4014 * 4015 * Returns 0 for success, non-zero for failure. 4016 */ 4017static int 4018_base_make_ioc_ready(struct MPT2SAS_ADAPTER *ioc, int sleep_flag, 4019 enum reset_type type) 4020{ 4021 u32 ioc_state; 4022 int rc; 4023 4024 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 4025 __func__)); 4026 4027 if (ioc->pci_error_recovery) 4028 return 0; 4029 4030 ioc_state = mpt2sas_base_get_iocstate(ioc, 0); 4031 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: ioc_state(0x%08x)\n", 4032 ioc->name, __func__, ioc_state)); 4033 4034 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_READY) 4035 return 0; 4036 4037 if (ioc_state & MPI2_DOORBELL_USED) { 4038 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "unexpected doorbell " 4039 "active!\n", ioc->name)); 4040 goto issue_diag_reset; 4041 } 4042 4043 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) { 4044 mpt2sas_base_fault_info(ioc, ioc_state & 4045 MPI2_DOORBELL_DATA_MASK); 4046 goto issue_diag_reset; 4047 } 4048 4049 if (type == FORCE_BIG_HAMMER) 4050 goto issue_diag_reset; 4051 4052 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_OPERATIONAL) 4053 if (!(_base_send_ioc_reset(ioc, 4054 MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET, 15, CAN_SLEEP))) { 4055 ioc->ioc_reset_count++; 4056 return 0; 4057 } 4058 4059 issue_diag_reset: 4060 rc = _base_diag_reset(ioc, CAN_SLEEP); 4061 ioc->ioc_reset_count++; 4062 return rc; 4063} 4064 4065/** 4066 * _base_make_ioc_operational - put controller in OPERATIONAL state 4067 * @ioc: per adapter object 4068 * @sleep_flag: CAN_SLEEP or NO_SLEEP 4069 * 4070 * Returns 0 for success, non-zero for failure. 4071 */ 4072static int 4073_base_make_ioc_operational(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) 4074{ 4075 int r, i; 4076 unsigned long flags; 4077 u32 reply_address; 4078 u16 smid; 4079 struct _tr_list *delayed_tr, *delayed_tr_next; 4080 u8 hide_flag; 4081 struct adapter_reply_queue *reply_q; 4082 long reply_post_free; 4083 u32 reply_post_free_sz; 4084 4085 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 4086 __func__)); 4087 4088 /* clean the delayed target reset list */ 4089 list_for_each_entry_safe(delayed_tr, delayed_tr_next, 4090 &ioc->delayed_tr_list, list) { 4091 list_del(&delayed_tr->list); 4092 kfree(delayed_tr); 4093 } 4094 4095 list_for_each_entry_safe(delayed_tr, delayed_tr_next, 4096 &ioc->delayed_tr_volume_list, list) { 4097 list_del(&delayed_tr->list); 4098 kfree(delayed_tr); 4099 } 4100 4101 /* initialize the scsi lookup free list */ 4102 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 4103 INIT_LIST_HEAD(&ioc->free_list); 4104 smid = 1; 4105 for (i = 0; i < ioc->scsiio_depth; i++, smid++) { 4106 INIT_LIST_HEAD(&ioc->scsi_lookup[i].chain_list); 4107 ioc->scsi_lookup[i].cb_idx = 0xFF; 4108 ioc->scsi_lookup[i].smid = smid; 4109 ioc->scsi_lookup[i].scmd = NULL; 4110 ioc->scsi_lookup[i].direct_io = 0; 4111 list_add_tail(&ioc->scsi_lookup[i].tracker_list, 4112 &ioc->free_list); 4113 } 4114 4115 /* hi-priority queue */ 4116 INIT_LIST_HEAD(&ioc->hpr_free_list); 4117 smid = ioc->hi_priority_smid; 4118 for (i = 0; i < ioc->hi_priority_depth; i++, smid++) { 4119 ioc->hpr_lookup[i].cb_idx = 0xFF; 4120 ioc->hpr_lookup[i].smid = smid; 4121 list_add_tail(&ioc->hpr_lookup[i].tracker_list, 4122 &ioc->hpr_free_list); 4123 } 4124 4125 /* internal queue */ 4126 INIT_LIST_HEAD(&ioc->internal_free_list); 4127 smid = ioc->internal_smid; 4128 for (i = 0; i < ioc->internal_depth; i++, smid++) { 4129 ioc->internal_lookup[i].cb_idx = 0xFF; 4130 ioc->internal_lookup[i].smid = smid; 4131 list_add_tail(&ioc->internal_lookup[i].tracker_list, 4132 &ioc->internal_free_list); 4133 } 4134 4135 /* chain pool */ 4136 INIT_LIST_HEAD(&ioc->free_chain_list); 4137 for (i = 0; i < ioc->chain_depth; i++) 4138 list_add_tail(&ioc->chain_lookup[i].tracker_list, 4139 &ioc->free_chain_list); 4140 4141 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 4142 4143 /* initialize Reply Free Queue */ 4144 for (i = 0, reply_address = (u32)ioc->reply_dma ; 4145 i < ioc->reply_free_queue_depth ; i++, reply_address += 4146 ioc->reply_sz) 4147 ioc->reply_free[i] = cpu_to_le32(reply_address); 4148 4149 /* initialize reply queues */ 4150 if (ioc->is_driver_loading) 4151 _base_assign_reply_queues(ioc); 4152 4153 /* initialize Reply Post Free Queue */ 4154 reply_post_free = (long)ioc->reply_post_free; 4155 reply_post_free_sz = ioc->reply_post_queue_depth * 4156 sizeof(Mpi2DefaultReplyDescriptor_t); 4157 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) { 4158 reply_q->reply_post_host_index = 0; 4159 reply_q->reply_post_free = (Mpi2ReplyDescriptorsUnion_t *) 4160 reply_post_free; 4161 for (i = 0; i < ioc->reply_post_queue_depth; i++) 4162 reply_q->reply_post_free[i].Words = 4163 cpu_to_le64(ULLONG_MAX); 4164 if (!_base_is_controller_msix_enabled(ioc)) 4165 goto skip_init_reply_post_free_queue; 4166 reply_post_free += reply_post_free_sz; 4167 } 4168 skip_init_reply_post_free_queue: 4169 4170 r = _base_send_ioc_init(ioc, sleep_flag); 4171 if (r) 4172 return r; 4173 4174 /* initialize reply free host index */ 4175 ioc->reply_free_host_index = ioc->reply_free_queue_depth - 1; 4176 writel(ioc->reply_free_host_index, &ioc->chip->ReplyFreeHostIndex); 4177 4178 /* initialize reply post host index */ 4179 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) { 4180 writel(reply_q->msix_index << MPI2_RPHI_MSIX_INDEX_SHIFT, 4181 &ioc->chip->ReplyPostHostIndex); 4182 if (!_base_is_controller_msix_enabled(ioc)) 4183 goto skip_init_reply_post_host_index; 4184 } 4185 4186 skip_init_reply_post_host_index: 4187 4188 _base_unmask_interrupts(ioc); 4189 4190 r = _base_event_notification(ioc, sleep_flag); 4191 if (r) 4192 return r; 4193 4194 if (sleep_flag == CAN_SLEEP) 4195 _base_static_config_pages(ioc); 4196 4197 4198 if (ioc->is_driver_loading) { 4199 if (ioc->is_warpdrive && ioc->manu_pg10.OEMIdentifier 4200 == 0x80) { 4201 hide_flag = (u8) ( 4202 le32_to_cpu(ioc->manu_pg10.OEMSpecificFlags0) & 4203 MFG_PAGE10_HIDE_SSDS_MASK); 4204 if (hide_flag != MFG_PAGE10_HIDE_SSDS_MASK) 4205 ioc->mfg_pg10_hide_flag = hide_flag; 4206 } 4207 ioc->wait_for_discovery_to_complete = 4208 _base_determine_wait_on_discovery(ioc); 4209 return r; /* scan_start and scan_finished support */ 4210 } 4211 r = _base_send_port_enable(ioc, sleep_flag); 4212 if (r) 4213 return r; 4214 4215 return r; 4216} 4217 4218/** 4219 * mpt2sas_base_free_resources - free resources controller resources (io/irq/memap) 4220 * @ioc: per adapter object 4221 * 4222 * Return nothing. 4223 */ 4224void 4225mpt2sas_base_free_resources(struct MPT2SAS_ADAPTER *ioc) 4226{ 4227 struct pci_dev *pdev = ioc->pdev; 4228 4229 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 4230 __func__)); 4231 4232 _base_mask_interrupts(ioc); 4233 ioc->shost_recovery = 1; 4234 _base_make_ioc_ready(ioc, CAN_SLEEP, SOFT_RESET); 4235 ioc->shost_recovery = 0; 4236 _base_free_irq(ioc); 4237 _base_disable_msix(ioc); 4238 if (ioc->chip_phys) 4239 iounmap(ioc->chip); 4240 ioc->chip_phys = 0; 4241 pci_release_selected_regions(ioc->pdev, ioc->bars); 4242 pci_disable_pcie_error_reporting(pdev); 4243 pci_disable_device(pdev); 4244 return; 4245} 4246 4247/** 4248 * mpt2sas_base_attach - attach controller instance 4249 * @ioc: per adapter object 4250 * 4251 * Returns 0 for success, non-zero for failure. 4252 */ 4253int 4254mpt2sas_base_attach(struct MPT2SAS_ADAPTER *ioc) 4255{ 4256 int r, i; 4257 int cpu_id, last_cpu_id = 0; 4258 4259 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 4260 __func__)); 4261 4262 /* setup cpu_msix_table */ 4263 ioc->cpu_count = num_online_cpus(); 4264 for_each_online_cpu(cpu_id) 4265 last_cpu_id = cpu_id; 4266 ioc->cpu_msix_table_sz = last_cpu_id + 1; 4267 ioc->cpu_msix_table = kzalloc(ioc->cpu_msix_table_sz, GFP_KERNEL); 4268 ioc->reply_queue_count = 1; 4269 if (!ioc->cpu_msix_table) { 4270 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "allocation for " 4271 "cpu_msix_table failed!!!\n", ioc->name)); 4272 r = -ENOMEM; 4273 goto out_free_resources; 4274 } 4275 4276 if (ioc->is_warpdrive) { 4277 ioc->reply_post_host_index = kcalloc(ioc->cpu_msix_table_sz, 4278 sizeof(resource_size_t *), GFP_KERNEL); 4279 if (!ioc->reply_post_host_index) { 4280 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "allocation " 4281 "for cpu_msix_table failed!!!\n", ioc->name)); 4282 r = -ENOMEM; 4283 goto out_free_resources; 4284 } 4285 } 4286 4287 r = mpt2sas_base_map_resources(ioc); 4288 if (r) 4289 goto out_free_resources; 4290 4291 if (ioc->is_warpdrive) { 4292 ioc->reply_post_host_index[0] = 4293 (resource_size_t *)&ioc->chip->ReplyPostHostIndex; 4294 4295 for (i = 1; i < ioc->cpu_msix_table_sz; i++) 4296 ioc->reply_post_host_index[i] = (resource_size_t *) 4297 ((u8 *)&ioc->chip->Doorbell + (0x4000 + ((i - 1) 4298 * 4))); 4299 } 4300 4301 pci_set_drvdata(ioc->pdev, ioc->shost); 4302 r = _base_get_ioc_facts(ioc, CAN_SLEEP); 4303 if (r) 4304 goto out_free_resources; 4305 4306 r = _base_make_ioc_ready(ioc, CAN_SLEEP, SOFT_RESET); 4307 if (r) 4308 goto out_free_resources; 4309 4310 ioc->pfacts = kcalloc(ioc->facts.NumberOfPorts, 4311 sizeof(struct mpt2sas_port_facts), GFP_KERNEL); 4312 if (!ioc->pfacts) { 4313 r = -ENOMEM; 4314 goto out_free_resources; 4315 } 4316 4317 for (i = 0 ; i < ioc->facts.NumberOfPorts; i++) { 4318 r = _base_get_port_facts(ioc, i, CAN_SLEEP); 4319 if (r) 4320 goto out_free_resources; 4321 } 4322 4323 r = _base_allocate_memory_pools(ioc, CAN_SLEEP); 4324 if (r) 4325 goto out_free_resources; 4326 4327 init_waitqueue_head(&ioc->reset_wq); 4328 /* allocate memory pd handle bitmask list */ 4329 ioc->pd_handles_sz = (ioc->facts.MaxDevHandle / 8); 4330 if (ioc->facts.MaxDevHandle % 8) 4331 ioc->pd_handles_sz++; 4332 ioc->pd_handles = kzalloc(ioc->pd_handles_sz, 4333 GFP_KERNEL); 4334 if (!ioc->pd_handles) { 4335 r = -ENOMEM; 4336 goto out_free_resources; 4337 } 4338 ioc->blocking_handles = kzalloc(ioc->pd_handles_sz, 4339 GFP_KERNEL); 4340 if (!ioc->blocking_handles) { 4341 r = -ENOMEM; 4342 goto out_free_resources; 4343 } 4344 ioc->fwfault_debug = mpt2sas_fwfault_debug; 4345 4346 /* base internal command bits */ 4347 mutex_init(&ioc->base_cmds.mutex); 4348 ioc->base_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL); 4349 ioc->base_cmds.status = MPT2_CMD_NOT_USED; 4350 4351 /* port_enable command bits */ 4352 ioc->port_enable_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL); 4353 ioc->port_enable_cmds.status = MPT2_CMD_NOT_USED; 4354 4355 /* transport internal command bits */ 4356 ioc->transport_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL); 4357 ioc->transport_cmds.status = MPT2_CMD_NOT_USED; 4358 mutex_init(&ioc->transport_cmds.mutex); 4359 4360 /* scsih internal command bits */ 4361 ioc->scsih_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL); 4362 ioc->scsih_cmds.status = MPT2_CMD_NOT_USED; 4363 mutex_init(&ioc->scsih_cmds.mutex); 4364 4365 /* task management internal command bits */ 4366 ioc->tm_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL); 4367 ioc->tm_cmds.status = MPT2_CMD_NOT_USED; 4368 mutex_init(&ioc->tm_cmds.mutex); 4369 4370 /* config page internal command bits */ 4371 ioc->config_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL); 4372 ioc->config_cmds.status = MPT2_CMD_NOT_USED; 4373 mutex_init(&ioc->config_cmds.mutex); 4374 4375 /* ctl module internal command bits */ 4376 ioc->ctl_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL); 4377 ioc->ctl_cmds.sense = kzalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL); 4378 ioc->ctl_cmds.status = MPT2_CMD_NOT_USED; 4379 mutex_init(&ioc->ctl_cmds.mutex); 4380 4381 if (!ioc->base_cmds.reply || !ioc->transport_cmds.reply || 4382 !ioc->scsih_cmds.reply || !ioc->tm_cmds.reply || 4383 !ioc->config_cmds.reply || !ioc->ctl_cmds.reply || 4384 !ioc->ctl_cmds.sense) { 4385 r = -ENOMEM; 4386 goto out_free_resources; 4387 } 4388 4389 if (!ioc->base_cmds.reply || !ioc->transport_cmds.reply || 4390 !ioc->scsih_cmds.reply || !ioc->tm_cmds.reply || 4391 !ioc->config_cmds.reply || !ioc->ctl_cmds.reply) { 4392 r = -ENOMEM; 4393 goto out_free_resources; 4394 } 4395 4396 for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++) 4397 ioc->event_masks[i] = -1; 4398 4399 /* here we enable the events we care about */ 4400 _base_unmask_events(ioc, MPI2_EVENT_SAS_DISCOVERY); 4401 _base_unmask_events(ioc, MPI2_EVENT_SAS_BROADCAST_PRIMITIVE); 4402 _base_unmask_events(ioc, MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST); 4403 _base_unmask_events(ioc, MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE); 4404 _base_unmask_events(ioc, MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE); 4405 _base_unmask_events(ioc, MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST); 4406 _base_unmask_events(ioc, MPI2_EVENT_IR_VOLUME); 4407 _base_unmask_events(ioc, MPI2_EVENT_IR_PHYSICAL_DISK); 4408 _base_unmask_events(ioc, MPI2_EVENT_IR_OPERATION_STATUS); 4409 _base_unmask_events(ioc, MPI2_EVENT_LOG_ENTRY_ADDED); 4410 r = _base_make_ioc_operational(ioc, CAN_SLEEP); 4411 if (r) 4412 goto out_free_resources; 4413 4414 ioc->non_operational_loop = 0; 4415 4416 return 0; 4417 4418 out_free_resources: 4419 4420 ioc->remove_host = 1; 4421 mpt2sas_base_free_resources(ioc); 4422 _base_release_memory_pools(ioc); 4423 pci_set_drvdata(ioc->pdev, NULL); 4424 kfree(ioc->cpu_msix_table); 4425 if (ioc->is_warpdrive) 4426 kfree(ioc->reply_post_host_index); 4427 kfree(ioc->pd_handles); 4428 kfree(ioc->blocking_handles); 4429 kfree(ioc->tm_cmds.reply); 4430 kfree(ioc->transport_cmds.reply); 4431 kfree(ioc->scsih_cmds.reply); 4432 kfree(ioc->config_cmds.reply); 4433 kfree(ioc->base_cmds.reply); 4434 kfree(ioc->port_enable_cmds.reply); 4435 kfree(ioc->ctl_cmds.reply); 4436 kfree(ioc->ctl_cmds.sense); 4437 kfree(ioc->pfacts); 4438 ioc->ctl_cmds.reply = NULL; 4439 ioc->base_cmds.reply = NULL; 4440 ioc->tm_cmds.reply = NULL; 4441 ioc->scsih_cmds.reply = NULL; 4442 ioc->transport_cmds.reply = NULL; 4443 ioc->config_cmds.reply = NULL; 4444 ioc->pfacts = NULL; 4445 return r; 4446} 4447 4448 4449/** 4450 * mpt2sas_base_detach - remove controller instance 4451 * @ioc: per adapter object 4452 * 4453 * Return nothing. 4454 */ 4455void 4456mpt2sas_base_detach(struct MPT2SAS_ADAPTER *ioc) 4457{ 4458 4459 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 4460 __func__)); 4461 4462 mpt2sas_base_stop_watchdog(ioc); 4463 mpt2sas_base_free_resources(ioc); 4464 _base_release_memory_pools(ioc); 4465 pci_set_drvdata(ioc->pdev, NULL); 4466 kfree(ioc->cpu_msix_table); 4467 if (ioc->is_warpdrive) 4468 kfree(ioc->reply_post_host_index); 4469 kfree(ioc->pd_handles); 4470 kfree(ioc->blocking_handles); 4471 kfree(ioc->pfacts); 4472 kfree(ioc->ctl_cmds.reply); 4473 kfree(ioc->ctl_cmds.sense); 4474 kfree(ioc->base_cmds.reply); 4475 kfree(ioc->port_enable_cmds.reply); 4476 kfree(ioc->tm_cmds.reply); 4477 kfree(ioc->transport_cmds.reply); 4478 kfree(ioc->scsih_cmds.reply); 4479 kfree(ioc->config_cmds.reply); 4480} 4481 4482/** 4483 * _base_reset_handler - reset callback handler (for base) 4484 * @ioc: per adapter object 4485 * @reset_phase: phase 4486 * 4487 * The handler for doing any required cleanup or initialization. 4488 * 4489 * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET, 4490 * MPT2_IOC_DONE_RESET 4491 * 4492 * Return nothing. 4493 */ 4494static void 4495_base_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase) 4496{ 4497 mpt2sas_scsih_reset_handler(ioc, reset_phase); 4498 mpt2sas_ctl_reset_handler(ioc, reset_phase); 4499 switch (reset_phase) { 4500 case MPT2_IOC_PRE_RESET: 4501 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " 4502 "MPT2_IOC_PRE_RESET\n", ioc->name, __func__)); 4503 break; 4504 case MPT2_IOC_AFTER_RESET: 4505 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " 4506 "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__)); 4507 if (ioc->transport_cmds.status & MPT2_CMD_PENDING) { 4508 ioc->transport_cmds.status |= MPT2_CMD_RESET; 4509 mpt2sas_base_free_smid(ioc, ioc->transport_cmds.smid); 4510 complete(&ioc->transport_cmds.done); 4511 } 4512 if (ioc->base_cmds.status & MPT2_CMD_PENDING) { 4513 ioc->base_cmds.status |= MPT2_CMD_RESET; 4514 mpt2sas_base_free_smid(ioc, ioc->base_cmds.smid); 4515 complete(&ioc->base_cmds.done); 4516 } 4517 if (ioc->port_enable_cmds.status & MPT2_CMD_PENDING) { 4518 ioc->port_enable_failed = 1; 4519 ioc->port_enable_cmds.status |= MPT2_CMD_RESET; 4520 mpt2sas_base_free_smid(ioc, ioc->port_enable_cmds.smid); 4521 if (ioc->is_driver_loading) { 4522 ioc->start_scan_failed = 4523 MPI2_IOCSTATUS_INTERNAL_ERROR; 4524 ioc->start_scan = 0; 4525 ioc->port_enable_cmds.status = 4526 MPT2_CMD_NOT_USED; 4527 } else 4528 complete(&ioc->port_enable_cmds.done); 4529 4530 } 4531 if (ioc->config_cmds.status & MPT2_CMD_PENDING) { 4532 ioc->config_cmds.status |= MPT2_CMD_RESET; 4533 mpt2sas_base_free_smid(ioc, ioc->config_cmds.smid); 4534 ioc->config_cmds.smid = USHRT_MAX; 4535 complete(&ioc->config_cmds.done); 4536 } 4537 break; 4538 case MPT2_IOC_DONE_RESET: 4539 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " 4540 "MPT2_IOC_DONE_RESET\n", ioc->name, __func__)); 4541 break; 4542 } 4543} 4544 4545/** 4546 * _wait_for_commands_to_complete - reset controller 4547 * @ioc: Pointer to MPT_ADAPTER structure 4548 * @sleep_flag: CAN_SLEEP or NO_SLEEP 4549 * 4550 * This function waiting(3s) for all pending commands to complete 4551 * prior to putting controller in reset. 4552 */ 4553static void 4554_wait_for_commands_to_complete(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) 4555{ 4556 u32 ioc_state; 4557 unsigned long flags; 4558 u16 i; 4559 4560 ioc->pending_io_count = 0; 4561 if (sleep_flag != CAN_SLEEP) 4562 return; 4563 4564 ioc_state = mpt2sas_base_get_iocstate(ioc, 0); 4565 if ((ioc_state & MPI2_IOC_STATE_MASK) != MPI2_IOC_STATE_OPERATIONAL) 4566 return; 4567 4568 /* pending command count */ 4569 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 4570 for (i = 0; i < ioc->scsiio_depth; i++) 4571 if (ioc->scsi_lookup[i].cb_idx != 0xFF) 4572 ioc->pending_io_count++; 4573 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 4574 4575 if (!ioc->pending_io_count) 4576 return; 4577 4578 /* wait for pending commands to complete */ 4579 wait_event_timeout(ioc->reset_wq, ioc->pending_io_count == 0, 10 * HZ); 4580} 4581 4582/** 4583 * mpt2sas_base_hard_reset_handler - reset controller 4584 * @ioc: Pointer to MPT_ADAPTER structure 4585 * @sleep_flag: CAN_SLEEP or NO_SLEEP 4586 * @type: FORCE_BIG_HAMMER or SOFT_RESET 4587 * 4588 * Returns 0 for success, non-zero for failure. 4589 */ 4590int 4591mpt2sas_base_hard_reset_handler(struct MPT2SAS_ADAPTER *ioc, int sleep_flag, 4592 enum reset_type type) 4593{ 4594 int r; 4595 unsigned long flags; 4596 4597 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name, 4598 __func__)); 4599 4600 if (ioc->pci_error_recovery) { 4601 printk(MPT2SAS_ERR_FMT "%s: pci error recovery reset\n", 4602 ioc->name, __func__); 4603 r = 0; 4604 goto out_unlocked; 4605 } 4606 4607 if (mpt2sas_fwfault_debug) 4608 mpt2sas_halt_firmware(ioc); 4609 4610 /* TODO - What we really should be doing is pulling 4611 * out all the code associated with NO_SLEEP; its never used. 4612 * That is legacy code from mpt fusion driver, ported over. 4613 * I will leave this BUG_ON here for now till its been resolved. 4614 */ 4615 BUG_ON(sleep_flag == NO_SLEEP); 4616 4617 /* wait for an active reset in progress to complete */ 4618 if (!mutex_trylock(&ioc->reset_in_progress_mutex)) { 4619 do { 4620 ssleep(1); 4621 } while (ioc->shost_recovery == 1); 4622 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit\n", ioc->name, 4623 __func__)); 4624 return ioc->ioc_reset_in_progress_status; 4625 } 4626 4627 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); 4628 ioc->shost_recovery = 1; 4629 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); 4630 4631 _base_reset_handler(ioc, MPT2_IOC_PRE_RESET); 4632 _wait_for_commands_to_complete(ioc, sleep_flag); 4633 _base_mask_interrupts(ioc); 4634 r = _base_make_ioc_ready(ioc, sleep_flag, type); 4635 if (r) 4636 goto out; 4637 _base_reset_handler(ioc, MPT2_IOC_AFTER_RESET); 4638 4639 /* If this hard reset is called while port enable is active, then 4640 * there is no reason to call make_ioc_operational 4641 */ 4642 if (ioc->is_driver_loading && ioc->port_enable_failed) { 4643 ioc->remove_host = 1; 4644 r = -EFAULT; 4645 goto out; 4646 } 4647 r = _base_make_ioc_operational(ioc, sleep_flag); 4648 if (!r) 4649 _base_reset_handler(ioc, MPT2_IOC_DONE_RESET); 4650 out: 4651 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: %s\n", 4652 ioc->name, __func__, ((r == 0) ? "SUCCESS" : "FAILED"))); 4653 4654 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); 4655 ioc->ioc_reset_in_progress_status = r; 4656 ioc->shost_recovery = 0; 4657 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); 4658 mutex_unlock(&ioc->reset_in_progress_mutex); 4659 4660 out_unlocked: 4661 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit\n", ioc->name, 4662 __func__)); 4663 return r; 4664} 4665