2 * This is the Fusion MPT base driver providing common API layer interface
3 * for access to MPT (Message Passing Technology) firmware.
5 * This code is based on drivers/scsi/mpt3sas/mpt3sas_base.c
6 * Copyright (C) 2012-2014 LSI Corporation
7 * Copyright (C) 2013-2014 Avago Technologies
8 * (mailto: MPT-FusionLinux.pdl@avagotech.com)
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
21 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
22 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
23 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
24 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
25 * solely responsible for determining the appropriateness of using and
26 * distributing the Program and assumes all risks associated with its
27 * exercise of rights under this Agreement, including but not limited to
28 * the risks and costs of program errors, damage to or loss of data,
29 * programs or equipment, and unavailability or interruption of operations.
31 * DISCLAIMER OF LIABILITY
32 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
33 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
35 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
36 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
37 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
38 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
40 * You should have received a copy of the GNU General Public License
41 * along with this program; if not, write to the Free Software
42 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
46 #include <linux/kernel.h>
47 #include <linux/module.h>
48 #include <linux/errno.h>
49 #include <linux/init.h>
50 #include <linux/slab.h>
51 #include <linux/types.h>
52 #include <linux/pci.h>
53 #include <linux/kdev_t.h>
54 #include <linux/blkdev.h>
55 #include <linux/delay.h>
56 #include <linux/interrupt.h>
57 #include <linux/dma-mapping.h>
59 #include <linux/time.h>
60 #include <linux/kthread.h>
61 #include <linux/aer.h>
64 #include "mpt3sas_base.h"
66 static MPT_CALLBACK mpt_callbacks[MPT_MAX_CALLBACKS];
69 #define FAULT_POLLING_INTERVAL 1000 /* in milliseconds */
71 /* maximum controller queue depth */
72 #define MAX_HBA_QUEUE_DEPTH 30000
73 #define MAX_CHAIN_DEPTH 100000
74 static int max_queue_depth = -1;
75 module_param(max_queue_depth, int, 0);
76 MODULE_PARM_DESC(max_queue_depth, " max controller queue depth ");
78 static int max_sgl_entries = -1;
79 module_param(max_sgl_entries, int, 0);
80 MODULE_PARM_DESC(max_sgl_entries, " max sg entries ");
82 static int msix_disable = -1;
83 module_param(msix_disable, int, 0);
84 MODULE_PARM_DESC(msix_disable, " disable msix routed interrupts (default=0)");
86 static int max_msix_vectors = -1;
87 module_param(max_msix_vectors, int, 0);
88 MODULE_PARM_DESC(max_msix_vectors,
91 static int mpt3sas_fwfault_debug;
92 MODULE_PARM_DESC(mpt3sas_fwfault_debug,
93 " enable detection of firmware fault and halt firmware - (default=0)");
96 _base_get_ioc_facts(struct MPT3SAS_ADAPTER *ioc, int sleep_flag);
99 * _scsih_set_fwfault_debug - global setting of ioc->fwfault_debug.
103 _scsih_set_fwfault_debug(const char *val, struct kernel_param *kp)
105 int ret = param_set_int(val, kp);
106 struct MPT3SAS_ADAPTER *ioc;
111 pr_info("setting fwfault_debug(%d)\n", mpt3sas_fwfault_debug);
112 list_for_each_entry(ioc, &mpt3sas_ioc_list, list)
113 ioc->fwfault_debug = mpt3sas_fwfault_debug;
116 module_param_call(mpt3sas_fwfault_debug, _scsih_set_fwfault_debug,
117 param_get_int, &mpt3sas_fwfault_debug, 0644);
120 * mpt3sas_remove_dead_ioc_func - kthread context to remove dead ioc
121 * @arg: input argument, used to derive ioc
123 * Return 0 if controller is removed from pci subsystem.
124 * Return -1 for other case.
126 static int mpt3sas_remove_dead_ioc_func(void *arg)
128 struct MPT3SAS_ADAPTER *ioc = (struct MPT3SAS_ADAPTER *)arg;
129 struct pci_dev *pdev;
137 pci_stop_and_remove_bus_device_locked(pdev);
142 * _base_fault_reset_work - workq handling ioc fault conditions
143 * @work: input argument, used to derive ioc
149 _base_fault_reset_work(struct work_struct *work)
151 struct MPT3SAS_ADAPTER *ioc =
152 container_of(work, struct MPT3SAS_ADAPTER, fault_reset_work.work);
156 struct task_struct *p;
159 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
160 if (ioc->shost_recovery)
162 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
164 doorbell = mpt3sas_base_get_iocstate(ioc, 0);
165 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_MASK) {
166 pr_err(MPT3SAS_FMT "SAS host is non-operational !!!!\n",
170 * Call _scsih_flush_pending_cmds callback so that we flush all
171 * pending commands back to OS. This call is required to aovid
172 * deadlock at block layer. Dead IOC will fail to do diag reset,
173 * and this call is safe since dead ioc will never return any
174 * command back from HW.
176 ioc->schedule_dead_ioc_flush_running_cmds(ioc);
178 * Set remove_host flag early since kernel thread will
179 * take some time to execute.
181 ioc->remove_host = 1;
182 /*Remove the Dead Host */
183 p = kthread_run(mpt3sas_remove_dead_ioc_func, ioc,
184 "mpt3sas_dead_ioc_%d", ioc->id);
187 "%s: Running mpt3sas_dead_ioc thread failed !!!!\n",
188 ioc->name, __func__);
191 "%s: Running mpt3sas_dead_ioc thread success !!!!\n",
192 ioc->name, __func__);
193 return; /* don't rearm timer */
196 if ((doorbell & MPI2_IOC_STATE_MASK) != MPI2_IOC_STATE_OPERATIONAL) {
197 rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
199 pr_warn(MPT3SAS_FMT "%s: hard reset: %s\n", ioc->name,
200 __func__, (rc == 0) ? "success" : "failed");
201 doorbell = mpt3sas_base_get_iocstate(ioc, 0);
202 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT)
203 mpt3sas_base_fault_info(ioc, doorbell &
204 MPI2_DOORBELL_DATA_MASK);
205 if (rc && (doorbell & MPI2_IOC_STATE_MASK) !=
206 MPI2_IOC_STATE_OPERATIONAL)
207 return; /* don't rearm timer */
210 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
212 if (ioc->fault_reset_work_q)
213 queue_delayed_work(ioc->fault_reset_work_q,
214 &ioc->fault_reset_work,
215 msecs_to_jiffies(FAULT_POLLING_INTERVAL));
216 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
220 * mpt3sas_base_start_watchdog - start the fault_reset_work_q
221 * @ioc: per adapter object
227 mpt3sas_base_start_watchdog(struct MPT3SAS_ADAPTER *ioc)
231 if (ioc->fault_reset_work_q)
234 /* initialize fault polling */
236 INIT_DELAYED_WORK(&ioc->fault_reset_work, _base_fault_reset_work);
237 snprintf(ioc->fault_reset_work_q_name,
238 sizeof(ioc->fault_reset_work_q_name), "poll_%d_status", ioc->id);
239 ioc->fault_reset_work_q =
240 create_singlethread_workqueue(ioc->fault_reset_work_q_name);
241 if (!ioc->fault_reset_work_q) {
242 pr_err(MPT3SAS_FMT "%s: failed (line=%d)\n",
243 ioc->name, __func__, __LINE__);
246 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
247 if (ioc->fault_reset_work_q)
248 queue_delayed_work(ioc->fault_reset_work_q,
249 &ioc->fault_reset_work,
250 msecs_to_jiffies(FAULT_POLLING_INTERVAL));
251 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
255 * mpt3sas_base_stop_watchdog - stop the fault_reset_work_q
256 * @ioc: per adapter object
262 mpt3sas_base_stop_watchdog(struct MPT3SAS_ADAPTER *ioc)
265 struct workqueue_struct *wq;
267 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
268 wq = ioc->fault_reset_work_q;
269 ioc->fault_reset_work_q = NULL;
270 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
272 if (!cancel_delayed_work_sync(&ioc->fault_reset_work))
274 destroy_workqueue(wq);
279 * mpt3sas_base_fault_info - verbose translation of firmware FAULT code
280 * @ioc: per adapter object
281 * @fault_code: fault code
286 mpt3sas_base_fault_info(struct MPT3SAS_ADAPTER *ioc , u16 fault_code)
288 pr_err(MPT3SAS_FMT "fault_state(0x%04x)!\n",
289 ioc->name, fault_code);
293 * mpt3sas_halt_firmware - halt's mpt controller firmware
294 * @ioc: per adapter object
296 * For debugging timeout related issues. Writing 0xCOFFEE00
297 * to the doorbell register will halt controller firmware. With
298 * the purpose to stop both driver and firmware, the enduser can
299 * obtain a ring buffer from controller UART.
302 mpt3sas_halt_firmware(struct MPT3SAS_ADAPTER *ioc)
306 if (!ioc->fwfault_debug)
311 doorbell = readl(&ioc->chip->Doorbell);
312 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT)
313 mpt3sas_base_fault_info(ioc , doorbell);
315 writel(0xC0FFEE00, &ioc->chip->Doorbell);
316 pr_err(MPT3SAS_FMT "Firmware is halted due to command timeout\n",
320 if (ioc->fwfault_debug == 2)
324 panic("panic in %s\n", __func__);
327 #ifdef CONFIG_SCSI_MPT3SAS_LOGGING
329 * _base_sas_ioc_info - verbose translation of the ioc status
330 * @ioc: per adapter object
331 * @mpi_reply: reply mf payload returned from firmware
332 * @request_hdr: request mf
337 _base_sas_ioc_info(struct MPT3SAS_ADAPTER *ioc, MPI2DefaultReply_t *mpi_reply,
338 MPI2RequestHeader_t *request_hdr)
340 u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
344 char *func_str = NULL;
346 /* SCSI_IO, RAID_PASS are handled from _scsih_scsi_ioc_info */
347 if (request_hdr->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
348 request_hdr->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
349 request_hdr->Function == MPI2_FUNCTION_EVENT_NOTIFICATION)
352 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
355 switch (ioc_status) {
357 /****************************************************************************
358 * Common IOCStatus values for all replies
359 ****************************************************************************/
361 case MPI2_IOCSTATUS_INVALID_FUNCTION:
362 desc = "invalid function";
364 case MPI2_IOCSTATUS_BUSY:
367 case MPI2_IOCSTATUS_INVALID_SGL:
368 desc = "invalid sgl";
370 case MPI2_IOCSTATUS_INTERNAL_ERROR:
371 desc = "internal error";
373 case MPI2_IOCSTATUS_INVALID_VPID:
374 desc = "invalid vpid";
376 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
377 desc = "insufficient resources";
379 case MPI2_IOCSTATUS_INVALID_FIELD:
380 desc = "invalid field";
382 case MPI2_IOCSTATUS_INVALID_STATE:
383 desc = "invalid state";
385 case MPI2_IOCSTATUS_OP_STATE_NOT_SUPPORTED:
386 desc = "op state not supported";
389 /****************************************************************************
390 * Config IOCStatus values
391 ****************************************************************************/
393 case MPI2_IOCSTATUS_CONFIG_INVALID_ACTION:
394 desc = "config invalid action";
396 case MPI2_IOCSTATUS_CONFIG_INVALID_TYPE:
397 desc = "config invalid type";
399 case MPI2_IOCSTATUS_CONFIG_INVALID_PAGE:
400 desc = "config invalid page";
402 case MPI2_IOCSTATUS_CONFIG_INVALID_DATA:
403 desc = "config invalid data";
405 case MPI2_IOCSTATUS_CONFIG_NO_DEFAULTS:
406 desc = "config no defaults";
408 case MPI2_IOCSTATUS_CONFIG_CANT_COMMIT:
409 desc = "config cant commit";
412 /****************************************************************************
414 ****************************************************************************/
416 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
417 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
418 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
419 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
420 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
421 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
422 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
423 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
424 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
425 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
426 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
427 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
430 /****************************************************************************
431 * For use by SCSI Initiator and SCSI Target end-to-end data protection
432 ****************************************************************************/
434 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
435 desc = "eedp guard error";
437 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
438 desc = "eedp ref tag error";
440 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
441 desc = "eedp app tag error";
444 /****************************************************************************
446 ****************************************************************************/
448 case MPI2_IOCSTATUS_TARGET_INVALID_IO_INDEX:
449 desc = "target invalid io index";
451 case MPI2_IOCSTATUS_TARGET_ABORTED:
452 desc = "target aborted";
454 case MPI2_IOCSTATUS_TARGET_NO_CONN_RETRYABLE:
455 desc = "target no conn retryable";
457 case MPI2_IOCSTATUS_TARGET_NO_CONNECTION:
458 desc = "target no connection";
460 case MPI2_IOCSTATUS_TARGET_XFER_COUNT_MISMATCH:
461 desc = "target xfer count mismatch";
463 case MPI2_IOCSTATUS_TARGET_DATA_OFFSET_ERROR:
464 desc = "target data offset error";
466 case MPI2_IOCSTATUS_TARGET_TOO_MUCH_WRITE_DATA:
467 desc = "target too much write data";
469 case MPI2_IOCSTATUS_TARGET_IU_TOO_SHORT:
470 desc = "target iu too short";
472 case MPI2_IOCSTATUS_TARGET_ACK_NAK_TIMEOUT:
473 desc = "target ack nak timeout";
475 case MPI2_IOCSTATUS_TARGET_NAK_RECEIVED:
476 desc = "target nak received";
479 /****************************************************************************
480 * Serial Attached SCSI values
481 ****************************************************************************/
483 case MPI2_IOCSTATUS_SAS_SMP_REQUEST_FAILED:
484 desc = "smp request failed";
486 case MPI2_IOCSTATUS_SAS_SMP_DATA_OVERRUN:
487 desc = "smp data overrun";
490 /****************************************************************************
491 * Diagnostic Buffer Post / Diagnostic Release values
492 ****************************************************************************/
494 case MPI2_IOCSTATUS_DIAGNOSTIC_RELEASED:
495 desc = "diagnostic released";
504 switch (request_hdr->Function) {
505 case MPI2_FUNCTION_CONFIG:
506 frame_sz = sizeof(Mpi2ConfigRequest_t) + ioc->sge_size;
507 func_str = "config_page";
509 case MPI2_FUNCTION_SCSI_TASK_MGMT:
510 frame_sz = sizeof(Mpi2SCSITaskManagementRequest_t);
511 func_str = "task_mgmt";
513 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
514 frame_sz = sizeof(Mpi2SasIoUnitControlRequest_t);
515 func_str = "sas_iounit_ctl";
517 case MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR:
518 frame_sz = sizeof(Mpi2SepRequest_t);
519 func_str = "enclosure";
521 case MPI2_FUNCTION_IOC_INIT:
522 frame_sz = sizeof(Mpi2IOCInitRequest_t);
523 func_str = "ioc_init";
525 case MPI2_FUNCTION_PORT_ENABLE:
526 frame_sz = sizeof(Mpi2PortEnableRequest_t);
527 func_str = "port_enable";
529 case MPI2_FUNCTION_SMP_PASSTHROUGH:
530 frame_sz = sizeof(Mpi2SmpPassthroughRequest_t) + ioc->sge_size;
531 func_str = "smp_passthru";
535 func_str = "unknown";
539 pr_warn(MPT3SAS_FMT "ioc_status: %s(0x%04x), request(0x%p),(%s)\n",
540 ioc->name, desc, ioc_status, request_hdr, func_str);
542 _debug_dump_mf(request_hdr, frame_sz/4);
546 * _base_display_event_data - verbose translation of firmware asyn events
547 * @ioc: per adapter object
548 * @mpi_reply: reply mf payload returned from firmware
553 _base_display_event_data(struct MPT3SAS_ADAPTER *ioc,
554 Mpi2EventNotificationReply_t *mpi_reply)
559 if (!(ioc->logging_level & MPT_DEBUG_EVENTS))
562 event = le16_to_cpu(mpi_reply->Event);
565 case MPI2_EVENT_LOG_DATA:
568 case MPI2_EVENT_STATE_CHANGE:
569 desc = "Status Change";
571 case MPI2_EVENT_HARD_RESET_RECEIVED:
572 desc = "Hard Reset Received";
574 case MPI2_EVENT_EVENT_CHANGE:
575 desc = "Event Change";
577 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
578 desc = "Device Status Change";
580 case MPI2_EVENT_IR_OPERATION_STATUS:
581 desc = "IR Operation Status";
583 case MPI2_EVENT_SAS_DISCOVERY:
585 Mpi2EventDataSasDiscovery_t *event_data =
586 (Mpi2EventDataSasDiscovery_t *)mpi_reply->EventData;
587 pr_info(MPT3SAS_FMT "Discovery: (%s)", ioc->name,
588 (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
590 if (event_data->DiscoveryStatus)
591 pr_info("discovery_status(0x%08x)",
592 le32_to_cpu(event_data->DiscoveryStatus));
596 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
597 desc = "SAS Broadcast Primitive";
599 case MPI2_EVENT_SAS_INIT_DEVICE_STATUS_CHANGE:
600 desc = "SAS Init Device Status Change";
602 case MPI2_EVENT_SAS_INIT_TABLE_OVERFLOW:
603 desc = "SAS Init Table Overflow";
605 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
606 desc = "SAS Topology Change List";
608 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
609 desc = "SAS Enclosure Device Status Change";
611 case MPI2_EVENT_IR_VOLUME:
614 case MPI2_EVENT_IR_PHYSICAL_DISK:
615 desc = "IR Physical Disk";
617 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
618 desc = "IR Configuration Change List";
620 case MPI2_EVENT_LOG_ENTRY_ADDED:
621 desc = "Log Entry Added";
623 case MPI2_EVENT_TEMP_THRESHOLD:
624 desc = "Temperature Threshold";
631 pr_info(MPT3SAS_FMT "%s\n", ioc->name, desc);
636 * _base_sas_log_info - verbose translation of firmware log info
637 * @ioc: per adapter object
638 * @log_info: log info
643 _base_sas_log_info(struct MPT3SAS_ADAPTER *ioc , u32 log_info)
654 union loginfo_type sas_loginfo;
655 char *originator_str = NULL;
657 sas_loginfo.loginfo = log_info;
658 if (sas_loginfo.dw.bus_type != 3 /*SAS*/)
661 /* each nexus loss loginfo */
662 if (log_info == 0x31170000)
665 /* eat the loginfos associated with task aborts */
666 if (ioc->ignore_loginfos && (log_info == 0x30050000 || log_info ==
667 0x31140000 || log_info == 0x31130000))
670 switch (sas_loginfo.dw.originator) {
672 originator_str = "IOP";
675 originator_str = "PL";
678 originator_str = "IR";
683 "log_info(0x%08x): originator(%s), code(0x%02x), sub_code(0x%04x)\n",
685 originator_str, sas_loginfo.dw.code,
686 sas_loginfo.dw.subcode);
690 * _base_display_reply_info -
691 * @ioc: per adapter object
692 * @smid: system request message index
693 * @msix_index: MSIX table index supplied by the OS
694 * @reply: reply message frame(lower 32bit addr)
699 _base_display_reply_info(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
702 MPI2DefaultReply_t *mpi_reply;
706 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
707 if (unlikely(!mpi_reply)) {
708 pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n",
709 ioc->name, __FILE__, __LINE__, __func__);
712 ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
713 #ifdef CONFIG_SCSI_MPT3SAS_LOGGING
714 if ((ioc_status & MPI2_IOCSTATUS_MASK) &&
715 (ioc->logging_level & MPT_DEBUG_REPLY)) {
716 _base_sas_ioc_info(ioc , mpi_reply,
717 mpt3sas_base_get_msg_frame(ioc, smid));
720 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE) {
721 loginfo = le32_to_cpu(mpi_reply->IOCLogInfo);
722 _base_sas_log_info(ioc, loginfo);
725 if (ioc_status || loginfo) {
726 ioc_status &= MPI2_IOCSTATUS_MASK;
727 mpt3sas_trigger_mpi(ioc, ioc_status, loginfo);
732 * mpt3sas_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)
738 * Return 1 meaning mf should be freed from _base_interrupt
739 * 0 means the mf is freed from this function.
742 mpt3sas_base_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
745 MPI2DefaultReply_t *mpi_reply;
747 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
748 if (mpi_reply && mpi_reply->Function == MPI2_FUNCTION_EVENT_ACK)
751 if (ioc->base_cmds.status == MPT3_CMD_NOT_USED)
754 ioc->base_cmds.status |= MPT3_CMD_COMPLETE;
756 ioc->base_cmds.status |= MPT3_CMD_REPLY_VALID;
757 memcpy(ioc->base_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
759 ioc->base_cmds.status &= ~MPT3_CMD_PENDING;
761 complete(&ioc->base_cmds.done);
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)
771 * Return 1 meaning mf should be freed from _base_interrupt
772 * 0 means the mf is freed from this function.
775 _base_async_event(struct MPT3SAS_ADAPTER *ioc, u8 msix_index, u32 reply)
777 Mpi2EventNotificationReply_t *mpi_reply;
778 Mpi2EventAckRequest_t *ack_request;
781 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
784 if (mpi_reply->Function != MPI2_FUNCTION_EVENT_NOTIFICATION)
786 #ifdef CONFIG_SCSI_MPT3SAS_LOGGING
787 _base_display_event_data(ioc, mpi_reply);
789 if (!(mpi_reply->AckRequired & MPI2_EVENT_NOTIFICATION_ACK_REQUIRED))
791 smid = mpt3sas_base_get_smid(ioc, ioc->base_cb_idx);
793 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
794 ioc->name, __func__);
798 ack_request = mpt3sas_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 mpt3sas_base_put_smid_default(ioc, smid);
809 /* scsih callback handler */
810 mpt3sas_scsih_event_callback(ioc, msix_index, reply);
812 /* ctl callback handler */
813 mpt3sas_ctl_event_callback(ioc, msix_index, reply);
819 * _base_get_cb_idx - obtain the callback index
820 * @ioc: per adapter object
821 * @smid: system request message index
823 * Return callback index.
826 _base_get_cb_idx(struct MPT3SAS_ADAPTER *ioc, u16 smid)
831 if (smid < ioc->hi_priority_smid) {
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;
846 * _base_mask_interrupts - disable interrupts
847 * @ioc: per adapter object
849 * Disabling ResetIRQ, Reply and Doorbell Interrupts
854 _base_mask_interrupts(struct MPT3SAS_ADAPTER *ioc)
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);
866 * _base_unmask_interrupts - enable interrupts
867 * @ioc: per adapter object
869 * Enabling only Reply Interrupts
874 _base_unmask_interrupts(struct MPT3SAS_ADAPTER *ioc)
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;
884 union reply_descriptor {
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)
898 * Return IRQ_HANDLE if processed, else IRQ_NONE.
901 _base_interrupt(int irq, void *bus_id)
903 struct adapter_reply_queue *reply_q = bus_id;
904 union reply_descriptor rd;
906 u8 request_desript_type;
910 u8 msix_index = reply_q->msix_index;
911 struct MPT3SAS_ADAPTER *ioc = reply_q->ioc;
912 Mpi2ReplyDescriptorsUnion_t *rpf;
915 if (ioc->mask_interrupts)
918 if (!atomic_add_unless(&reply_q->busy, 1, 1))
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);
932 rd.word = le64_to_cpu(rpf->Words);
933 if (rd.u.low == UINT_MAX || rd.u.high == UINT_MAX)
936 smid = le16_to_cpu(rpf->Default.DescriptorTypeDependent1);
937 if (request_desript_type ==
938 MPI25_RPY_DESCRIPT_FLAGS_FAST_PATH_SCSI_IO_SUCCESS ||
939 request_desript_type ==
940 MPI2_RPY_DESCRIPT_FLAGS_SCSI_IO_SUCCESS) {
941 cb_idx = _base_get_cb_idx(ioc, smid);
942 if ((likely(cb_idx < MPT_MAX_CALLBACKS)) &&
943 (likely(mpt_callbacks[cb_idx] != NULL))) {
944 rc = mpt_callbacks[cb_idx](ioc, smid,
947 mpt3sas_base_free_smid(ioc, smid);
949 } else if (request_desript_type ==
950 MPI2_RPY_DESCRIPT_FLAGS_ADDRESS_REPLY) {
952 rpf->AddressReply.ReplyFrameAddress);
953 if (reply > ioc->reply_dma_max_address ||
954 reply < ioc->reply_dma_min_address)
957 cb_idx = _base_get_cb_idx(ioc, smid);
958 if ((likely(cb_idx < MPT_MAX_CALLBACKS)) &&
959 (likely(mpt_callbacks[cb_idx] != NULL))) {
960 rc = mpt_callbacks[cb_idx](ioc, smid,
963 _base_display_reply_info(ioc,
964 smid, msix_index, reply);
966 mpt3sas_base_free_smid(ioc,
970 _base_async_event(ioc, msix_index, reply);
973 /* reply free queue handling */
975 ioc->reply_free_host_index =
976 (ioc->reply_free_host_index ==
977 (ioc->reply_free_queue_depth - 1)) ?
978 0 : ioc->reply_free_host_index + 1;
979 ioc->reply_free[ioc->reply_free_host_index] =
982 writel(ioc->reply_free_host_index,
983 &ioc->chip->ReplyFreeHostIndex);
987 rpf->Words = cpu_to_le64(ULLONG_MAX);
988 reply_q->reply_post_host_index =
989 (reply_q->reply_post_host_index ==
990 (ioc->reply_post_queue_depth - 1)) ? 0 :
991 reply_q->reply_post_host_index + 1;
992 request_desript_type =
993 reply_q->reply_post_free[reply_q->reply_post_host_index].
994 Default.ReplyFlags & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
996 if (request_desript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED)
998 if (!reply_q->reply_post_host_index)
999 rpf = reply_q->reply_post_free;
1006 if (!completed_cmds) {
1007 atomic_dec(&reply_q->busy);
1013 /* Update Reply Post Host Index.
1014 * For those HBA's which support combined reply queue feature
1015 * 1. Get the correct Supplemental Reply Post Host Index Register.
1016 * i.e. (msix_index / 8)th entry from Supplemental Reply Post Host
1017 * Index Register address bank i.e replyPostRegisterIndex[],
1018 * 2. Then update this register with new reply host index value
1019 * in ReplyPostIndex field and the MSIxIndex field with
1020 * msix_index value reduced to a value between 0 and 7,
1021 * using a modulo 8 operation. Since each Supplemental Reply Post
1022 * Host Index Register supports 8 MSI-X vectors.
1024 * For other HBA's just update the Reply Post Host Index register with
1025 * new reply host index value in ReplyPostIndex Field and msix_index
1026 * value in MSIxIndex field.
1028 if (ioc->msix96_vector)
1029 writel(reply_q->reply_post_host_index | ((msix_index & 7) <<
1030 MPI2_RPHI_MSIX_INDEX_SHIFT),
1031 ioc->replyPostRegisterIndex[msix_index/8]);
1033 writel(reply_q->reply_post_host_index | (msix_index <<
1034 MPI2_RPHI_MSIX_INDEX_SHIFT),
1035 &ioc->chip->ReplyPostHostIndex);
1036 atomic_dec(&reply_q->busy);
1041 * _base_is_controller_msix_enabled - is controller support muli-reply queues
1042 * @ioc: per adapter object
1046 _base_is_controller_msix_enabled(struct MPT3SAS_ADAPTER *ioc)
1048 return (ioc->facts.IOCCapabilities &
1049 MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX) && ioc->msix_enable;
1053 * mpt3sas_base_flush_reply_queues - flushing the MSIX reply queues
1054 * @ioc: per adapter object
1055 * Context: ISR conext
1057 * Called when a Task Management request has completed. We want
1058 * to flush the other reply queues so all the outstanding IO has been
1059 * completed back to OS before we process the TM completetion.
1064 mpt3sas_base_flush_reply_queues(struct MPT3SAS_ADAPTER *ioc)
1066 struct adapter_reply_queue *reply_q;
1068 /* If MSIX capability is turned off
1069 * then multi-queues are not enabled
1071 if (!_base_is_controller_msix_enabled(ioc))
1074 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) {
1075 if (ioc->shost_recovery)
1077 /* TMs are on msix_index == 0 */
1078 if (reply_q->msix_index == 0)
1080 _base_interrupt(reply_q->vector, (void *)reply_q);
1085 * mpt3sas_base_release_callback_handler - clear interrupt callback handler
1086 * @cb_idx: callback index
1091 mpt3sas_base_release_callback_handler(u8 cb_idx)
1093 mpt_callbacks[cb_idx] = NULL;
1097 * mpt3sas_base_register_callback_handler - obtain index for the interrupt callback handler
1098 * @cb_func: callback function
1103 mpt3sas_base_register_callback_handler(MPT_CALLBACK cb_func)
1107 for (cb_idx = MPT_MAX_CALLBACKS-1; cb_idx; cb_idx--)
1108 if (mpt_callbacks[cb_idx] == NULL)
1111 mpt_callbacks[cb_idx] = cb_func;
1116 * mpt3sas_base_initialize_callback_handler - initialize the interrupt callback handler
1121 mpt3sas_base_initialize_callback_handler(void)
1125 for (cb_idx = 0; cb_idx < MPT_MAX_CALLBACKS; cb_idx++)
1126 mpt3sas_base_release_callback_handler(cb_idx);
1131 * _base_build_zero_len_sge - build zero length sg entry
1132 * @ioc: per adapter object
1133 * @paddr: virtual address for SGE
1135 * Create a zero length scatter gather entry to insure the IOCs hardware has
1136 * something to use if the target device goes brain dead and tries
1137 * to send data even when none is asked for.
1142 _base_build_zero_len_sge(struct MPT3SAS_ADAPTER *ioc, void *paddr)
1144 u32 flags_length = (u32)((MPI2_SGE_FLAGS_LAST_ELEMENT |
1145 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST |
1146 MPI2_SGE_FLAGS_SIMPLE_ELEMENT) <<
1147 MPI2_SGE_FLAGS_SHIFT);
1148 ioc->base_add_sg_single(paddr, flags_length, -1);
1152 * _base_add_sg_single_32 - Place a simple 32 bit SGE at address pAddr.
1153 * @paddr: virtual address for SGE
1154 * @flags_length: SGE flags and data transfer length
1155 * @dma_addr: Physical address
1160 _base_add_sg_single_32(void *paddr, u32 flags_length, dma_addr_t dma_addr)
1162 Mpi2SGESimple32_t *sgel = paddr;
1164 flags_length |= (MPI2_SGE_FLAGS_32_BIT_ADDRESSING |
1165 MPI2_SGE_FLAGS_SYSTEM_ADDRESS) << MPI2_SGE_FLAGS_SHIFT;
1166 sgel->FlagsLength = cpu_to_le32(flags_length);
1167 sgel->Address = cpu_to_le32(dma_addr);
1172 * _base_add_sg_single_64 - Place a simple 64 bit SGE at address pAddr.
1173 * @paddr: virtual address for SGE
1174 * @flags_length: SGE flags and data transfer length
1175 * @dma_addr: Physical address
1180 _base_add_sg_single_64(void *paddr, u32 flags_length, dma_addr_t dma_addr)
1182 Mpi2SGESimple64_t *sgel = paddr;
1184 flags_length |= (MPI2_SGE_FLAGS_64_BIT_ADDRESSING |
1185 MPI2_SGE_FLAGS_SYSTEM_ADDRESS) << MPI2_SGE_FLAGS_SHIFT;
1186 sgel->FlagsLength = cpu_to_le32(flags_length);
1187 sgel->Address = cpu_to_le64(dma_addr);
1191 * _base_get_chain_buffer_tracker - obtain chain tracker
1192 * @ioc: per adapter object
1193 * @smid: smid associated to an IO request
1195 * Returns chain tracker(from ioc->free_chain_list)
1197 static struct chain_tracker *
1198 _base_get_chain_buffer_tracker(struct MPT3SAS_ADAPTER *ioc, u16 smid)
1200 struct chain_tracker *chain_req;
1201 unsigned long flags;
1203 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1204 if (list_empty(&ioc->free_chain_list)) {
1205 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1206 dfailprintk(ioc, pr_warn(MPT3SAS_FMT
1207 "chain buffers not available\n", ioc->name));
1210 chain_req = list_entry(ioc->free_chain_list.next,
1211 struct chain_tracker, tracker_list);
1212 list_del_init(&chain_req->tracker_list);
1213 list_add_tail(&chain_req->tracker_list,
1214 &ioc->scsi_lookup[smid - 1].chain_list);
1215 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1221 * _base_build_sg - build generic sg
1222 * @ioc: per adapter object
1223 * @psge: virtual address for SGE
1224 * @data_out_dma: physical address for WRITES
1225 * @data_out_sz: data xfer size for WRITES
1226 * @data_in_dma: physical address for READS
1227 * @data_in_sz: data xfer size for READS
1232 _base_build_sg(struct MPT3SAS_ADAPTER *ioc, void *psge,
1233 dma_addr_t data_out_dma, size_t data_out_sz, dma_addr_t data_in_dma,
1238 if (!data_out_sz && !data_in_sz) {
1239 _base_build_zero_len_sge(ioc, psge);
1243 if (data_out_sz && data_in_sz) {
1244 /* WRITE sgel first */
1245 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
1246 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC);
1247 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
1248 ioc->base_add_sg_single(psge, sgl_flags |
1249 data_out_sz, data_out_dma);
1252 psge += ioc->sge_size;
1254 /* READ sgel last */
1255 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
1256 MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
1257 MPI2_SGE_FLAGS_END_OF_LIST);
1258 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
1259 ioc->base_add_sg_single(psge, sgl_flags |
1260 data_in_sz, data_in_dma);
1261 } else if (data_out_sz) /* WRITE */ {
1262 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
1263 MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
1264 MPI2_SGE_FLAGS_END_OF_LIST | MPI2_SGE_FLAGS_HOST_TO_IOC);
1265 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
1266 ioc->base_add_sg_single(psge, sgl_flags |
1267 data_out_sz, data_out_dma);
1268 } else if (data_in_sz) /* READ */ {
1269 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
1270 MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
1271 MPI2_SGE_FLAGS_END_OF_LIST);
1272 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
1273 ioc->base_add_sg_single(psge, sgl_flags |
1274 data_in_sz, data_in_dma);
1278 /* IEEE format sgls */
1281 * _base_add_sg_single_ieee - add sg element for IEEE format
1282 * @paddr: virtual address for SGE
1284 * @chain_offset: number of 128 byte elements from start of segment
1285 * @length: data transfer length
1286 * @dma_addr: Physical address
1291 _base_add_sg_single_ieee(void *paddr, u8 flags, u8 chain_offset, u32 length,
1292 dma_addr_t dma_addr)
1294 Mpi25IeeeSgeChain64_t *sgel = paddr;
1296 sgel->Flags = flags;
1297 sgel->NextChainOffset = chain_offset;
1298 sgel->Length = cpu_to_le32(length);
1299 sgel->Address = cpu_to_le64(dma_addr);
1303 * _base_build_zero_len_sge_ieee - build zero length sg entry for IEEE format
1304 * @ioc: per adapter object
1305 * @paddr: virtual address for SGE
1307 * Create a zero length scatter gather entry to insure the IOCs hardware has
1308 * something to use if the target device goes brain dead and tries
1309 * to send data even when none is asked for.
1314 _base_build_zero_len_sge_ieee(struct MPT3SAS_ADAPTER *ioc, void *paddr)
1316 u8 sgl_flags = (MPI2_IEEE_SGE_FLAGS_SIMPLE_ELEMENT |
1317 MPI2_IEEE_SGE_FLAGS_SYSTEM_ADDR |
1318 MPI25_IEEE_SGE_FLAGS_END_OF_LIST);
1319 _base_add_sg_single_ieee(paddr, sgl_flags, 0, 0, -1);
1323 * _base_build_sg_scmd_ieee - main sg creation routine for IEEE format
1324 * @ioc: per adapter object
1325 * @scmd: scsi command
1326 * @smid: system request message index
1329 * The main routine that builds scatter gather table from a given
1330 * scsi request sent via the .queuecommand main handler.
1332 * Returns 0 success, anything else error
1335 _base_build_sg_scmd_ieee(struct MPT3SAS_ADAPTER *ioc,
1336 struct scsi_cmnd *scmd, u16 smid)
1338 Mpi2SCSIIORequest_t *mpi_request;
1339 dma_addr_t chain_dma;
1340 struct scatterlist *sg_scmd;
1341 void *sg_local, *chain;
1345 u32 sges_in_segment;
1346 u8 simple_sgl_flags;
1347 u8 simple_sgl_flags_last;
1349 struct chain_tracker *chain_req;
1351 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1353 /* init scatter gather flags */
1354 simple_sgl_flags = MPI2_IEEE_SGE_FLAGS_SIMPLE_ELEMENT |
1355 MPI2_IEEE_SGE_FLAGS_SYSTEM_ADDR;
1356 simple_sgl_flags_last = simple_sgl_flags |
1357 MPI25_IEEE_SGE_FLAGS_END_OF_LIST;
1358 chain_sgl_flags = MPI2_IEEE_SGE_FLAGS_CHAIN_ELEMENT |
1359 MPI2_IEEE_SGE_FLAGS_SYSTEM_ADDR;
1361 sg_scmd = scsi_sglist(scmd);
1362 sges_left = scsi_dma_map(scmd);
1363 if (sges_left < 0) {
1364 sdev_printk(KERN_ERR, scmd->device,
1365 "pci_map_sg failed: request for %d bytes!\n",
1366 scsi_bufflen(scmd));
1370 sg_local = &mpi_request->SGL;
1371 sges_in_segment = (ioc->request_sz -
1372 offsetof(Mpi2SCSIIORequest_t, SGL))/ioc->sge_size_ieee;
1373 if (sges_left <= sges_in_segment)
1374 goto fill_in_last_segment;
1376 mpi_request->ChainOffset = (sges_in_segment - 1 /* chain element */) +
1377 (offsetof(Mpi2SCSIIORequest_t, SGL)/ioc->sge_size_ieee);
1379 /* fill in main message segment when there is a chain following */
1380 while (sges_in_segment > 1) {
1381 _base_add_sg_single_ieee(sg_local, simple_sgl_flags, 0,
1382 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1383 sg_scmd = sg_next(sg_scmd);
1384 sg_local += ioc->sge_size_ieee;
1389 /* initializing the pointers */
1390 chain_req = _base_get_chain_buffer_tracker(ioc, smid);
1393 chain = chain_req->chain_buffer;
1394 chain_dma = chain_req->chain_buffer_dma;
1396 sges_in_segment = (sges_left <=
1397 ioc->max_sges_in_chain_message) ? sges_left :
1398 ioc->max_sges_in_chain_message;
1399 chain_offset = (sges_left == sges_in_segment) ?
1400 0 : sges_in_segment;
1401 chain_length = sges_in_segment * ioc->sge_size_ieee;
1403 chain_length += ioc->sge_size_ieee;
1404 _base_add_sg_single_ieee(sg_local, chain_sgl_flags,
1405 chain_offset, chain_length, chain_dma);
1409 goto fill_in_last_segment;
1411 /* fill in chain segments */
1412 while (sges_in_segment) {
1413 _base_add_sg_single_ieee(sg_local, simple_sgl_flags, 0,
1414 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1415 sg_scmd = sg_next(sg_scmd);
1416 sg_local += ioc->sge_size_ieee;
1421 chain_req = _base_get_chain_buffer_tracker(ioc, smid);
1424 chain = chain_req->chain_buffer;
1425 chain_dma = chain_req->chain_buffer_dma;
1429 fill_in_last_segment:
1431 /* fill the last segment */
1432 while (sges_left > 0) {
1434 _base_add_sg_single_ieee(sg_local,
1435 simple_sgl_flags_last, 0, sg_dma_len(sg_scmd),
1436 sg_dma_address(sg_scmd));
1438 _base_add_sg_single_ieee(sg_local, simple_sgl_flags, 0,
1439 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1440 sg_scmd = sg_next(sg_scmd);
1441 sg_local += ioc->sge_size_ieee;
1449 * _base_build_sg_ieee - build generic sg for IEEE format
1450 * @ioc: per adapter object
1451 * @psge: virtual address for SGE
1452 * @data_out_dma: physical address for WRITES
1453 * @data_out_sz: data xfer size for WRITES
1454 * @data_in_dma: physical address for READS
1455 * @data_in_sz: data xfer size for READS
1460 _base_build_sg_ieee(struct MPT3SAS_ADAPTER *ioc, void *psge,
1461 dma_addr_t data_out_dma, size_t data_out_sz, dma_addr_t data_in_dma,
1466 if (!data_out_sz && !data_in_sz) {
1467 _base_build_zero_len_sge_ieee(ioc, psge);
1471 if (data_out_sz && data_in_sz) {
1472 /* WRITE sgel first */
1473 sgl_flags = MPI2_IEEE_SGE_FLAGS_SIMPLE_ELEMENT |
1474 MPI2_IEEE_SGE_FLAGS_SYSTEM_ADDR;
1475 _base_add_sg_single_ieee(psge, sgl_flags, 0, data_out_sz,
1479 psge += ioc->sge_size_ieee;
1481 /* READ sgel last */
1482 sgl_flags |= MPI25_IEEE_SGE_FLAGS_END_OF_LIST;
1483 _base_add_sg_single_ieee(psge, sgl_flags, 0, data_in_sz,
1485 } else if (data_out_sz) /* WRITE */ {
1486 sgl_flags = MPI2_IEEE_SGE_FLAGS_SIMPLE_ELEMENT |
1487 MPI25_IEEE_SGE_FLAGS_END_OF_LIST |
1488 MPI2_IEEE_SGE_FLAGS_SYSTEM_ADDR;
1489 _base_add_sg_single_ieee(psge, sgl_flags, 0, data_out_sz,
1491 } else if (data_in_sz) /* READ */ {
1492 sgl_flags = MPI2_IEEE_SGE_FLAGS_SIMPLE_ELEMENT |
1493 MPI25_IEEE_SGE_FLAGS_END_OF_LIST |
1494 MPI2_IEEE_SGE_FLAGS_SYSTEM_ADDR;
1495 _base_add_sg_single_ieee(psge, sgl_flags, 0, data_in_sz,
1500 #define convert_to_kb(x) ((x) << (PAGE_SHIFT - 10))
1503 * _base_config_dma_addressing - set dma addressing
1504 * @ioc: per adapter object
1505 * @pdev: PCI device struct
1507 * Returns 0 for success, non-zero for failure.
1510 _base_config_dma_addressing(struct MPT3SAS_ADAPTER *ioc, struct pci_dev *pdev)
1513 u64 consistent_dma_mask;
1516 consistent_dma_mask = DMA_BIT_MASK(64);
1518 consistent_dma_mask = DMA_BIT_MASK(32);
1520 if (sizeof(dma_addr_t) > 4) {
1521 const uint64_t required_mask =
1522 dma_get_required_mask(&pdev->dev);
1523 if ((required_mask > DMA_BIT_MASK(32)) &&
1524 !pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1525 !pci_set_consistent_dma_mask(pdev, consistent_dma_mask)) {
1526 ioc->base_add_sg_single = &_base_add_sg_single_64;
1527 ioc->sge_size = sizeof(Mpi2SGESimple64_t);
1533 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
1534 && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
1535 ioc->base_add_sg_single = &_base_add_sg_single_32;
1536 ioc->sge_size = sizeof(Mpi2SGESimple32_t);
1544 "%d BIT PCI BUS DMA ADDRESSING SUPPORTED, total mem (%ld kB)\n",
1545 ioc->name, ioc->dma_mask, convert_to_kb(s.totalram));
1551 _base_change_consistent_dma_mask(struct MPT3SAS_ADAPTER *ioc,
1552 struct pci_dev *pdev)
1554 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
1555 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1562 * _base_check_enable_msix - checks MSIX capabable.
1563 * @ioc: per adapter object
1565 * Check to see if card is capable of MSIX, and set number
1566 * of available msix vectors
1569 _base_check_enable_msix(struct MPT3SAS_ADAPTER *ioc)
1572 u16 message_control;
1574 base = pci_find_capability(ioc->pdev, PCI_CAP_ID_MSIX);
1576 dfailprintk(ioc, pr_info(MPT3SAS_FMT "msix not supported\n",
1581 /* get msix vector count */
1583 pci_read_config_word(ioc->pdev, base + 2, &message_control);
1584 ioc->msix_vector_count = (message_control & 0x3FF) + 1;
1585 dinitprintk(ioc, pr_info(MPT3SAS_FMT
1586 "msix is supported, vector_count(%d)\n",
1587 ioc->name, ioc->msix_vector_count));
1592 * _base_free_irq - free irq
1593 * @ioc: per adapter object
1595 * Freeing respective reply_queue from the list.
1598 _base_free_irq(struct MPT3SAS_ADAPTER *ioc)
1600 struct adapter_reply_queue *reply_q, *next;
1602 if (list_empty(&ioc->reply_queue_list))
1605 list_for_each_entry_safe(reply_q, next, &ioc->reply_queue_list, list) {
1606 list_del(&reply_q->list);
1607 irq_set_affinity_hint(reply_q->vector, NULL);
1608 free_cpumask_var(reply_q->affinity_hint);
1609 synchronize_irq(reply_q->vector);
1610 free_irq(reply_q->vector, reply_q);
1616 * _base_request_irq - request irq
1617 * @ioc: per adapter object
1618 * @index: msix index into vector table
1619 * @vector: irq vector
1621 * Inserting respective reply_queue into the list.
1624 _base_request_irq(struct MPT3SAS_ADAPTER *ioc, u8 index, u32 vector)
1626 struct adapter_reply_queue *reply_q;
1629 reply_q = kzalloc(sizeof(struct adapter_reply_queue), GFP_KERNEL);
1631 pr_err(MPT3SAS_FMT "unable to allocate memory %d!\n",
1632 ioc->name, (int)sizeof(struct adapter_reply_queue));
1636 reply_q->msix_index = index;
1637 reply_q->vector = vector;
1639 if (!alloc_cpumask_var(&reply_q->affinity_hint, GFP_KERNEL))
1641 cpumask_clear(reply_q->affinity_hint);
1643 atomic_set(&reply_q->busy, 0);
1644 if (ioc->msix_enable)
1645 snprintf(reply_q->name, MPT_NAME_LENGTH, "%s%d-msix%d",
1646 MPT3SAS_DRIVER_NAME, ioc->id, index);
1648 snprintf(reply_q->name, MPT_NAME_LENGTH, "%s%d",
1649 MPT3SAS_DRIVER_NAME, ioc->id);
1650 r = request_irq(vector, _base_interrupt, IRQF_SHARED, reply_q->name,
1653 pr_err(MPT3SAS_FMT "unable to allocate interrupt %d!\n",
1654 reply_q->name, vector);
1659 INIT_LIST_HEAD(&reply_q->list);
1660 list_add_tail(&reply_q->list, &ioc->reply_queue_list);
1665 * _base_assign_reply_queues - assigning msix index for each cpu
1666 * @ioc: per adapter object
1668 * The enduser would need to set the affinity via /proc/irq/#/smp_affinity
1670 * It would nice if we could call irq_set_affinity, however it is not
1671 * an exported symbol
1674 _base_assign_reply_queues(struct MPT3SAS_ADAPTER *ioc)
1676 unsigned int cpu, nr_cpus, nr_msix, index = 0;
1677 struct adapter_reply_queue *reply_q;
1679 if (!_base_is_controller_msix_enabled(ioc))
1682 memset(ioc->cpu_msix_table, 0, ioc->cpu_msix_table_sz);
1684 nr_cpus = num_online_cpus();
1685 nr_msix = ioc->reply_queue_count = min(ioc->reply_queue_count,
1686 ioc->facts.MaxMSIxVectors);
1690 cpu = cpumask_first(cpu_online_mask);
1692 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) {
1694 unsigned int i, group = nr_cpus / nr_msix;
1699 if (index < nr_cpus % nr_msix)
1702 for (i = 0 ; i < group ; i++) {
1703 ioc->cpu_msix_table[cpu] = index;
1704 cpumask_or(reply_q->affinity_hint,
1705 reply_q->affinity_hint, get_cpu_mask(cpu));
1706 cpu = cpumask_next(cpu, cpu_online_mask);
1709 if (irq_set_affinity_hint(reply_q->vector,
1710 reply_q->affinity_hint))
1711 dinitprintk(ioc, pr_info(MPT3SAS_FMT
1712 "error setting affinity hint for irq vector %d\n",
1713 ioc->name, reply_q->vector));
1719 * _base_disable_msix - disables msix
1720 * @ioc: per adapter object
1724 _base_disable_msix(struct MPT3SAS_ADAPTER *ioc)
1726 if (!ioc->msix_enable)
1728 pci_disable_msix(ioc->pdev);
1729 ioc->msix_enable = 0;
1733 * _base_enable_msix - enables msix, failback to io_apic
1734 * @ioc: per adapter object
1738 _base_enable_msix(struct MPT3SAS_ADAPTER *ioc)
1740 struct msix_entry *entries, *a;
1745 if (msix_disable == -1 || msix_disable == 0)
1751 if (_base_check_enable_msix(ioc) != 0)
1754 ioc->reply_queue_count = min_t(int, ioc->cpu_count,
1755 ioc->msix_vector_count);
1757 printk(MPT3SAS_FMT "MSI-X vectors supported: %d, no of cores"
1758 ": %d, max_msix_vectors: %d\n", ioc->name, ioc->msix_vector_count,
1759 ioc->cpu_count, max_msix_vectors);
1761 if (!ioc->rdpq_array_enable && max_msix_vectors == -1)
1762 max_msix_vectors = 8;
1764 if (max_msix_vectors > 0) {
1765 ioc->reply_queue_count = min_t(int, max_msix_vectors,
1766 ioc->reply_queue_count);
1767 ioc->msix_vector_count = ioc->reply_queue_count;
1768 } else if (max_msix_vectors == 0)
1771 entries = kcalloc(ioc->reply_queue_count, sizeof(struct msix_entry),
1774 dfailprintk(ioc, pr_info(MPT3SAS_FMT
1775 "kcalloc failed @ at %s:%d/%s() !!!\n",
1776 ioc->name, __FILE__, __LINE__, __func__));
1780 for (i = 0, a = entries; i < ioc->reply_queue_count; i++, a++)
1783 r = pci_enable_msix_exact(ioc->pdev, entries, ioc->reply_queue_count);
1785 dfailprintk(ioc, pr_info(MPT3SAS_FMT
1786 "pci_enable_msix_exact failed (r=%d) !!!\n",
1792 ioc->msix_enable = 1;
1793 for (i = 0, a = entries; i < ioc->reply_queue_count; i++, a++) {
1794 r = _base_request_irq(ioc, i, a->vector);
1796 _base_free_irq(ioc);
1797 _base_disable_msix(ioc);
1806 /* failback to io_apic interrupt routing */
1809 ioc->reply_queue_count = 1;
1810 r = _base_request_irq(ioc, 0, ioc->pdev->irq);
1816 * mpt3sas_base_unmap_resources - free controller resources
1817 * @ioc: per adapter object
1820 mpt3sas_base_unmap_resources(struct MPT3SAS_ADAPTER *ioc)
1822 struct pci_dev *pdev = ioc->pdev;
1824 dexitprintk(ioc, printk(MPT3SAS_FMT "%s\n",
1825 ioc->name, __func__));
1827 _base_free_irq(ioc);
1828 _base_disable_msix(ioc);
1830 if (ioc->msix96_vector)
1831 kfree(ioc->replyPostRegisterIndex);
1833 if (ioc->chip_phys) {
1838 if (pci_is_enabled(pdev)) {
1839 pci_release_selected_regions(ioc->pdev, ioc->bars);
1840 pci_disable_pcie_error_reporting(pdev);
1841 pci_disable_device(pdev);
1846 * mpt3sas_base_map_resources - map in controller resources (io/irq/memap)
1847 * @ioc: per adapter object
1849 * Returns 0 for success, non-zero for failure.
1852 mpt3sas_base_map_resources(struct MPT3SAS_ADAPTER *ioc)
1854 struct pci_dev *pdev = ioc->pdev;
1860 struct adapter_reply_queue *reply_q;
1862 dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n",
1863 ioc->name, __func__));
1865 ioc->bars = pci_select_bars(pdev, IORESOURCE_MEM);
1866 if (pci_enable_device_mem(pdev)) {
1867 pr_warn(MPT3SAS_FMT "pci_enable_device_mem: failed\n",
1874 if (pci_request_selected_regions(pdev, ioc->bars,
1875 MPT3SAS_DRIVER_NAME)) {
1876 pr_warn(MPT3SAS_FMT "pci_request_selected_regions: failed\n",
1883 /* AER (Advanced Error Reporting) hooks */
1884 pci_enable_pcie_error_reporting(pdev);
1886 pci_set_master(pdev);
1889 if (_base_config_dma_addressing(ioc, pdev) != 0) {
1890 pr_warn(MPT3SAS_FMT "no suitable DMA mask for %s\n",
1891 ioc->name, pci_name(pdev));
1896 for (i = 0, memap_sz = 0, pio_sz = 0; (i < DEVICE_COUNT_RESOURCE) &&
1897 (!memap_sz || !pio_sz); i++) {
1898 if (pci_resource_flags(pdev, i) & IORESOURCE_IO) {
1901 pio_chip = (u64)pci_resource_start(pdev, i);
1902 pio_sz = pci_resource_len(pdev, i);
1903 } else if (pci_resource_flags(pdev, i) & IORESOURCE_MEM) {
1906 ioc->chip_phys = pci_resource_start(pdev, i);
1907 chip_phys = (u64)ioc->chip_phys;
1908 memap_sz = pci_resource_len(pdev, i);
1909 ioc->chip = ioremap(ioc->chip_phys, memap_sz);
1913 if (ioc->chip == NULL) {
1914 pr_err(MPT3SAS_FMT "unable to map adapter memory! "
1915 " or resource not found\n", ioc->name);
1920 _base_mask_interrupts(ioc);
1922 r = _base_get_ioc_facts(ioc, CAN_SLEEP);
1926 if (!ioc->rdpq_array_enable_assigned) {
1927 ioc->rdpq_array_enable = ioc->rdpq_array_capable;
1928 ioc->rdpq_array_enable_assigned = 1;
1931 r = _base_enable_msix(ioc);
1935 /* Use the Combined reply queue feature only for SAS3 C0 & higher
1936 * revision HBAs and also only when reply queue count is greater than 8
1938 if (ioc->msix96_vector && ioc->reply_queue_count > 8) {
1939 /* Determine the Supplemental Reply Post Host Index Registers
1940 * Addresse. Supplemental Reply Post Host Index Registers
1941 * starts at offset MPI25_SUP_REPLY_POST_HOST_INDEX_OFFSET and
1942 * each register is at offset bytes of
1943 * MPT3_SUP_REPLY_POST_HOST_INDEX_REG_OFFSET from previous one.
1945 ioc->replyPostRegisterIndex = kcalloc(
1946 MPT3_SUP_REPLY_POST_HOST_INDEX_REG_COUNT,
1947 sizeof(resource_size_t *), GFP_KERNEL);
1948 if (!ioc->replyPostRegisterIndex) {
1949 dfailprintk(ioc, printk(MPT3SAS_FMT
1950 "allocation for reply Post Register Index failed!!!\n",
1956 for (i = 0; i < MPT3_SUP_REPLY_POST_HOST_INDEX_REG_COUNT; i++) {
1957 ioc->replyPostRegisterIndex[i] = (resource_size_t *)
1958 ((u8 *)&ioc->chip->Doorbell +
1959 MPI25_SUP_REPLY_POST_HOST_INDEX_OFFSET +
1960 (i * MPT3_SUP_REPLY_POST_HOST_INDEX_REG_OFFSET));
1963 ioc->msix96_vector = 0;
1965 list_for_each_entry(reply_q, &ioc->reply_queue_list, list)
1966 pr_info(MPT3SAS_FMT "%s: IRQ %d\n",
1967 reply_q->name, ((ioc->msix_enable) ? "PCI-MSI-X enabled" :
1968 "IO-APIC enabled"), reply_q->vector);
1970 pr_info(MPT3SAS_FMT "iomem(0x%016llx), mapped(0x%p), size(%d)\n",
1971 ioc->name, (unsigned long long)chip_phys, ioc->chip, memap_sz);
1972 pr_info(MPT3SAS_FMT "ioport(0x%016llx), size(%d)\n",
1973 ioc->name, (unsigned long long)pio_chip, pio_sz);
1975 /* Save PCI configuration state for recovery from PCI AER/EEH errors */
1976 pci_save_state(pdev);
1980 mpt3sas_base_unmap_resources(ioc);
1985 * mpt3sas_base_get_msg_frame - obtain request mf pointer
1986 * @ioc: per adapter object
1987 * @smid: system request message index(smid zero is invalid)
1989 * Returns virt pointer to message frame.
1992 mpt3sas_base_get_msg_frame(struct MPT3SAS_ADAPTER *ioc, u16 smid)
1994 return (void *)(ioc->request + (smid * ioc->request_sz));
1998 * mpt3sas_base_get_sense_buffer - obtain a sense buffer virt addr
1999 * @ioc: per adapter object
2000 * @smid: system request message index
2002 * Returns virt pointer to sense buffer.
2005 mpt3sas_base_get_sense_buffer(struct MPT3SAS_ADAPTER *ioc, u16 smid)
2007 return (void *)(ioc->sense + ((smid - 1) * SCSI_SENSE_BUFFERSIZE));
2011 * mpt3sas_base_get_sense_buffer_dma - obtain a sense buffer dma addr
2012 * @ioc: per adapter object
2013 * @smid: system request message index
2015 * Returns phys pointer to the low 32bit address of the sense buffer.
2018 mpt3sas_base_get_sense_buffer_dma(struct MPT3SAS_ADAPTER *ioc, u16 smid)
2020 return cpu_to_le32(ioc->sense_dma + ((smid - 1) *
2021 SCSI_SENSE_BUFFERSIZE));
2025 * mpt3sas_base_get_reply_virt_addr - obtain reply frames virt address
2026 * @ioc: per adapter object
2027 * @phys_addr: lower 32 physical addr of the reply
2029 * Converts 32bit lower physical addr into a virt address.
2032 mpt3sas_base_get_reply_virt_addr(struct MPT3SAS_ADAPTER *ioc, u32 phys_addr)
2036 return ioc->reply + (phys_addr - (u32)ioc->reply_dma);
2040 * mpt3sas_base_get_smid - obtain a free smid from internal queue
2041 * @ioc: per adapter object
2042 * @cb_idx: callback index
2044 * Returns smid (zero is invalid)
2047 mpt3sas_base_get_smid(struct MPT3SAS_ADAPTER *ioc, u8 cb_idx)
2049 unsigned long flags;
2050 struct request_tracker *request;
2053 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2054 if (list_empty(&ioc->internal_free_list)) {
2055 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2056 pr_err(MPT3SAS_FMT "%s: smid not available\n",
2057 ioc->name, __func__);
2061 request = list_entry(ioc->internal_free_list.next,
2062 struct request_tracker, tracker_list);
2063 request->cb_idx = cb_idx;
2064 smid = request->smid;
2065 list_del(&request->tracker_list);
2066 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2071 * mpt3sas_base_get_smid_scsiio - obtain a free smid from scsiio queue
2072 * @ioc: per adapter object
2073 * @cb_idx: callback index
2074 * @scmd: pointer to scsi command object
2076 * Returns smid (zero is invalid)
2079 mpt3sas_base_get_smid_scsiio(struct MPT3SAS_ADAPTER *ioc, u8 cb_idx,
2080 struct scsi_cmnd *scmd)
2082 unsigned long flags;
2083 struct scsiio_tracker *request;
2086 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2087 if (list_empty(&ioc->free_list)) {
2088 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2089 pr_err(MPT3SAS_FMT "%s: smid not available\n",
2090 ioc->name, __func__);
2094 request = list_entry(ioc->free_list.next,
2095 struct scsiio_tracker, tracker_list);
2096 request->scmd = scmd;
2097 request->cb_idx = cb_idx;
2098 smid = request->smid;
2099 list_del(&request->tracker_list);
2100 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2105 * mpt3sas_base_get_smid_hpr - obtain a free smid from hi-priority queue
2106 * @ioc: per adapter object
2107 * @cb_idx: callback index
2109 * Returns smid (zero is invalid)
2112 mpt3sas_base_get_smid_hpr(struct MPT3SAS_ADAPTER *ioc, u8 cb_idx)
2114 unsigned long flags;
2115 struct request_tracker *request;
2118 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2119 if (list_empty(&ioc->hpr_free_list)) {
2120 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2124 request = list_entry(ioc->hpr_free_list.next,
2125 struct request_tracker, tracker_list);
2126 request->cb_idx = cb_idx;
2127 smid = request->smid;
2128 list_del(&request->tracker_list);
2129 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2134 * mpt3sas_base_free_smid - put smid back on free_list
2135 * @ioc: per adapter object
2136 * @smid: system request message index
2141 mpt3sas_base_free_smid(struct MPT3SAS_ADAPTER *ioc, u16 smid)
2143 unsigned long flags;
2145 struct chain_tracker *chain_req, *next;
2147 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2148 if (smid < ioc->hi_priority_smid) {
2151 if (!list_empty(&ioc->scsi_lookup[i].chain_list)) {
2152 list_for_each_entry_safe(chain_req, next,
2153 &ioc->scsi_lookup[i].chain_list, tracker_list) {
2154 list_del_init(&chain_req->tracker_list);
2155 list_add(&chain_req->tracker_list,
2156 &ioc->free_chain_list);
2159 ioc->scsi_lookup[i].cb_idx = 0xFF;
2160 ioc->scsi_lookup[i].scmd = NULL;
2161 list_add(&ioc->scsi_lookup[i].tracker_list, &ioc->free_list);
2162 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2165 * See _wait_for_commands_to_complete() call with regards
2168 if (ioc->shost_recovery && ioc->pending_io_count) {
2169 if (ioc->pending_io_count == 1)
2170 wake_up(&ioc->reset_wq);
2171 ioc->pending_io_count--;
2174 } else if (smid < ioc->internal_smid) {
2176 i = smid - ioc->hi_priority_smid;
2177 ioc->hpr_lookup[i].cb_idx = 0xFF;
2178 list_add(&ioc->hpr_lookup[i].tracker_list, &ioc->hpr_free_list);
2179 } else if (smid <= ioc->hba_queue_depth) {
2180 /* internal queue */
2181 i = smid - ioc->internal_smid;
2182 ioc->internal_lookup[i].cb_idx = 0xFF;
2183 list_add(&ioc->internal_lookup[i].tracker_list,
2184 &ioc->internal_free_list);
2186 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2190 * _base_writeq - 64 bit write to MMIO
2191 * @ioc: per adapter object
2193 * @addr: address in MMIO space
2194 * @writeq_lock: spin lock
2196 * Glue for handling an atomic 64 bit word to MMIO. This special handling takes
2197 * care of 32 bit environment where its not quarenteed to send the entire word
2200 #if defined(writeq) && defined(CONFIG_64BIT)
2202 _base_writeq(__u64 b, volatile void __iomem *addr, spinlock_t *writeq_lock)
2204 writeq(cpu_to_le64(b), addr);
2208 _base_writeq(__u64 b, volatile void __iomem *addr, spinlock_t *writeq_lock)
2210 unsigned long flags;
2211 __u64 data_out = cpu_to_le64(b);
2213 spin_lock_irqsave(writeq_lock, flags);
2214 writel((u32)(data_out), addr);
2215 writel((u32)(data_out >> 32), (addr + 4));
2216 spin_unlock_irqrestore(writeq_lock, flags);
2221 _base_get_msix_index(struct MPT3SAS_ADAPTER *ioc)
2223 return ioc->cpu_msix_table[raw_smp_processor_id()];
2227 * mpt3sas_base_put_smid_scsi_io - send SCSI_IO request to firmware
2228 * @ioc: per adapter object
2229 * @smid: system request message index
2230 * @handle: device handle
2235 mpt3sas_base_put_smid_scsi_io(struct MPT3SAS_ADAPTER *ioc, u16 smid, u16 handle)
2237 Mpi2RequestDescriptorUnion_t descriptor;
2238 u64 *request = (u64 *)&descriptor;
2241 descriptor.SCSIIO.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO;
2242 descriptor.SCSIIO.MSIxIndex = _base_get_msix_index(ioc);
2243 descriptor.SCSIIO.SMID = cpu_to_le16(smid);
2244 descriptor.SCSIIO.DevHandle = cpu_to_le16(handle);
2245 descriptor.SCSIIO.LMID = 0;
2246 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
2247 &ioc->scsi_lookup_lock);
2251 * mpt3sas_base_put_smid_fast_path - send fast path request to firmware
2252 * @ioc: per adapter object
2253 * @smid: system request message index
2254 * @handle: device handle
2259 mpt3sas_base_put_smid_fast_path(struct MPT3SAS_ADAPTER *ioc, u16 smid,
2262 Mpi2RequestDescriptorUnion_t descriptor;
2263 u64 *request = (u64 *)&descriptor;
2265 descriptor.SCSIIO.RequestFlags =
2266 MPI25_REQ_DESCRIPT_FLAGS_FAST_PATH_SCSI_IO;
2267 descriptor.SCSIIO.MSIxIndex = _base_get_msix_index(ioc);
2268 descriptor.SCSIIO.SMID = cpu_to_le16(smid);
2269 descriptor.SCSIIO.DevHandle = cpu_to_le16(handle);
2270 descriptor.SCSIIO.LMID = 0;
2271 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
2272 &ioc->scsi_lookup_lock);
2276 * mpt3sas_base_put_smid_hi_priority - send Task Managment request to firmware
2277 * @ioc: per adapter object
2278 * @smid: system request message index
2283 mpt3sas_base_put_smid_hi_priority(struct MPT3SAS_ADAPTER *ioc, u16 smid)
2285 Mpi2RequestDescriptorUnion_t descriptor;
2286 u64 *request = (u64 *)&descriptor;
2288 descriptor.HighPriority.RequestFlags =
2289 MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY;
2290 descriptor.HighPriority.MSIxIndex = 0;
2291 descriptor.HighPriority.SMID = cpu_to_le16(smid);
2292 descriptor.HighPriority.LMID = 0;
2293 descriptor.HighPriority.Reserved1 = 0;
2294 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
2295 &ioc->scsi_lookup_lock);
2299 * mpt3sas_base_put_smid_default - Default, primarily used for config pages
2300 * @ioc: per adapter object
2301 * @smid: system request message index
2306 mpt3sas_base_put_smid_default(struct MPT3SAS_ADAPTER *ioc, u16 smid)
2308 Mpi2RequestDescriptorUnion_t descriptor;
2309 u64 *request = (u64 *)&descriptor;
2311 descriptor.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
2312 descriptor.Default.MSIxIndex = _base_get_msix_index(ioc);
2313 descriptor.Default.SMID = cpu_to_le16(smid);
2314 descriptor.Default.LMID = 0;
2315 descriptor.Default.DescriptorTypeDependent = 0;
2316 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
2317 &ioc->scsi_lookup_lock);
2321 * _base_display_intel_branding - Display branding string
2322 * @ioc: per adapter object
2327 _base_display_intel_branding(struct MPT3SAS_ADAPTER *ioc)
2329 if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_INTEL)
2332 switch (ioc->pdev->device) {
2333 case MPI25_MFGPAGE_DEVID_SAS3008:
2334 switch (ioc->pdev->subsystem_device) {
2335 case MPT3SAS_INTEL_RMS3JC080_SSDID:
2336 pr_info(MPT3SAS_FMT "%s\n", ioc->name,
2337 MPT3SAS_INTEL_RMS3JC080_BRANDING);
2340 case MPT3SAS_INTEL_RS3GC008_SSDID:
2341 pr_info(MPT3SAS_FMT "%s\n", ioc->name,
2342 MPT3SAS_INTEL_RS3GC008_BRANDING);
2344 case MPT3SAS_INTEL_RS3FC044_SSDID:
2345 pr_info(MPT3SAS_FMT "%s\n", ioc->name,
2346 MPT3SAS_INTEL_RS3FC044_BRANDING);
2348 case MPT3SAS_INTEL_RS3UC080_SSDID:
2349 pr_info(MPT3SAS_FMT "%s\n", ioc->name,
2350 MPT3SAS_INTEL_RS3UC080_BRANDING);
2354 "Intel(R) Controller: Subsystem ID: 0x%X\n",
2355 ioc->name, ioc->pdev->subsystem_device);
2361 "Intel(R) Controller: Subsystem ID: 0x%X\n",
2362 ioc->name, ioc->pdev->subsystem_device);
2370 * _base_display_dell_branding - Display branding string
2371 * @ioc: per adapter object
2376 _base_display_dell_branding(struct MPT3SAS_ADAPTER *ioc)
2378 if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_DELL)
2381 switch (ioc->pdev->device) {
2382 case MPI25_MFGPAGE_DEVID_SAS3008:
2383 switch (ioc->pdev->subsystem_device) {
2384 case MPT3SAS_DELL_12G_HBA_SSDID:
2385 pr_info(MPT3SAS_FMT "%s\n", ioc->name,
2386 MPT3SAS_DELL_12G_HBA_BRANDING);
2390 "Dell 12Gbps HBA: Subsystem ID: 0x%X\n", ioc->name,
2391 ioc->pdev->subsystem_device);
2397 "Dell 12Gbps HBA: Subsystem ID: 0x%X\n", ioc->name,
2398 ioc->pdev->subsystem_device);
2404 * _base_display_cisco_branding - Display branding string
2405 * @ioc: per adapter object
2410 _base_display_cisco_branding(struct MPT3SAS_ADAPTER *ioc)
2412 if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_CISCO)
2415 switch (ioc->pdev->device) {
2416 case MPI25_MFGPAGE_DEVID_SAS3008:
2417 switch (ioc->pdev->subsystem_device) {
2418 case MPT3SAS_CISCO_12G_HBA_SSDID:
2419 pr_info(MPT3SAS_FMT "%s\n", ioc->name,
2420 MPT3SAS_CISCO_12G_HBA_BRANDING);
2424 "Cisco 12Gbps SAS HBA: Subsystem ID: 0x%X\n",
2425 ioc->name, ioc->pdev->subsystem_device);
2431 "Cisco 12Gbps SAS HBA: Subsystem ID: 0x%X\n",
2432 ioc->name, ioc->pdev->subsystem_device);
2438 * _base_display_ioc_capabilities - Disply IOC's capabilities.
2439 * @ioc: per adapter object
2444 _base_display_ioc_capabilities(struct MPT3SAS_ADAPTER *ioc)
2448 u32 iounit_pg1_flags;
2451 bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
2452 strncpy(desc, ioc->manu_pg0.ChipName, 16);
2453 pr_info(MPT3SAS_FMT "%s: FWVersion(%02d.%02d.%02d.%02d), "\
2454 "ChipRevision(0x%02x), BiosVersion(%02d.%02d.%02d.%02d)\n",
2456 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
2457 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
2458 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
2459 ioc->facts.FWVersion.Word & 0x000000FF,
2460 ioc->pdev->revision,
2461 (bios_version & 0xFF000000) >> 24,
2462 (bios_version & 0x00FF0000) >> 16,
2463 (bios_version & 0x0000FF00) >> 8,
2464 bios_version & 0x000000FF);
2466 _base_display_intel_branding(ioc);
2467 _base_display_dell_branding(ioc);
2468 _base_display_cisco_branding(ioc);
2470 pr_info(MPT3SAS_FMT "Protocol=(", ioc->name);
2472 if (ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR) {
2473 pr_info("Initiator");
2477 if (ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_TARGET) {
2478 pr_info("%sTarget", i ? "," : "");
2484 pr_info("Capabilities=(");
2486 if (ioc->facts.IOCCapabilities &
2487 MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID) {
2492 if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR) {
2493 pr_info("%sTLR", i ? "," : "");
2497 if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_MULTICAST) {
2498 pr_info("%sMulticast", i ? "," : "");
2502 if (ioc->facts.IOCCapabilities &
2503 MPI2_IOCFACTS_CAPABILITY_BIDIRECTIONAL_TARGET) {
2504 pr_info("%sBIDI Target", i ? "," : "");
2508 if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_EEDP) {
2509 pr_info("%sEEDP", i ? "," : "");
2513 if (ioc->facts.IOCCapabilities &
2514 MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER) {
2515 pr_info("%sSnapshot Buffer", i ? "," : "");
2519 if (ioc->facts.IOCCapabilities &
2520 MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER) {
2521 pr_info("%sDiag Trace Buffer", i ? "," : "");
2525 if (ioc->facts.IOCCapabilities &
2526 MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER) {
2527 pr_info("%sDiag Extended Buffer", i ? "," : "");
2531 if (ioc->facts.IOCCapabilities &
2532 MPI2_IOCFACTS_CAPABILITY_TASK_SET_FULL_HANDLING) {
2533 pr_info("%sTask Set Full", i ? "," : "");
2537 iounit_pg1_flags = le32_to_cpu(ioc->iounit_pg1.Flags);
2538 if (!(iounit_pg1_flags & MPI2_IOUNITPAGE1_NATIVE_COMMAND_Q_DISABLE)) {
2539 pr_info("%sNCQ", i ? "," : "");
2547 * mpt3sas_base_update_missing_delay - change the missing delay timers
2548 * @ioc: per adapter object
2549 * @device_missing_delay: amount of time till device is reported missing
2550 * @io_missing_delay: interval IO is returned when there is a missing device
2554 * Passed on the command line, this function will modify the device missing
2555 * delay, as well as the io missing delay. This should be called at driver
2559 mpt3sas_base_update_missing_delay(struct MPT3SAS_ADAPTER *ioc,
2560 u16 device_missing_delay, u8 io_missing_delay)
2562 u16 dmd, dmd_new, dmd_orignal;
2563 u8 io_missing_delay_original;
2565 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
2566 Mpi2ConfigReply_t mpi_reply;
2570 mpt3sas_config_get_number_hba_phys(ioc, &num_phys);
2574 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (num_phys *
2575 sizeof(Mpi2SasIOUnit1PhyData_t));
2576 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
2577 if (!sas_iounit_pg1) {
2578 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
2579 ioc->name, __FILE__, __LINE__, __func__);
2582 if ((mpt3sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
2583 sas_iounit_pg1, sz))) {
2584 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
2585 ioc->name, __FILE__, __LINE__, __func__);
2588 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
2589 MPI2_IOCSTATUS_MASK;
2590 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
2591 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
2592 ioc->name, __FILE__, __LINE__, __func__);
2596 /* device missing delay */
2597 dmd = sas_iounit_pg1->ReportDeviceMissingDelay;
2598 if (dmd & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
2599 dmd = (dmd & MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
2601 dmd = dmd & MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
2603 if (device_missing_delay > 0x7F) {
2604 dmd = (device_missing_delay > 0x7F0) ? 0x7F0 :
2605 device_missing_delay;
2607 dmd |= MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16;
2609 dmd = device_missing_delay;
2610 sas_iounit_pg1->ReportDeviceMissingDelay = dmd;
2612 /* io missing delay */
2613 io_missing_delay_original = sas_iounit_pg1->IODeviceMissingDelay;
2614 sas_iounit_pg1->IODeviceMissingDelay = io_missing_delay;
2616 if (!mpt3sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1,
2618 if (dmd & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
2620 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
2623 dmd & MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
2624 pr_info(MPT3SAS_FMT "device_missing_delay: old(%d), new(%d)\n",
2625 ioc->name, dmd_orignal, dmd_new);
2626 pr_info(MPT3SAS_FMT "ioc_missing_delay: old(%d), new(%d)\n",
2627 ioc->name, io_missing_delay_original,
2629 ioc->device_missing_delay = dmd_new;
2630 ioc->io_missing_delay = io_missing_delay;
2634 kfree(sas_iounit_pg1);
2637 * _base_static_config_pages - static start of day config pages
2638 * @ioc: per adapter object
2643 _base_static_config_pages(struct MPT3SAS_ADAPTER *ioc)
2645 Mpi2ConfigReply_t mpi_reply;
2646 u32 iounit_pg1_flags;
2648 mpt3sas_config_get_manufacturing_pg0(ioc, &mpi_reply, &ioc->manu_pg0);
2649 if (ioc->ir_firmware)
2650 mpt3sas_config_get_manufacturing_pg10(ioc, &mpi_reply,
2654 * Ensure correct T10 PI operation if vendor left EEDPTagMode
2655 * flag unset in NVDATA.
2657 mpt3sas_config_get_manufacturing_pg11(ioc, &mpi_reply, &ioc->manu_pg11);
2658 if (ioc->manu_pg11.EEDPTagMode == 0) {
2659 pr_err("%s: overriding NVDATA EEDPTagMode setting\n",
2661 ioc->manu_pg11.EEDPTagMode &= ~0x3;
2662 ioc->manu_pg11.EEDPTagMode |= 0x1;
2663 mpt3sas_config_set_manufacturing_pg11(ioc, &mpi_reply,
2667 mpt3sas_config_get_bios_pg2(ioc, &mpi_reply, &ioc->bios_pg2);
2668 mpt3sas_config_get_bios_pg3(ioc, &mpi_reply, &ioc->bios_pg3);
2669 mpt3sas_config_get_ioc_pg8(ioc, &mpi_reply, &ioc->ioc_pg8);
2670 mpt3sas_config_get_iounit_pg0(ioc, &mpi_reply, &ioc->iounit_pg0);
2671 mpt3sas_config_get_iounit_pg1(ioc, &mpi_reply, &ioc->iounit_pg1);
2672 mpt3sas_config_get_iounit_pg8(ioc, &mpi_reply, &ioc->iounit_pg8);
2673 _base_display_ioc_capabilities(ioc);
2676 * Enable task_set_full handling in iounit_pg1 when the
2677 * facts capabilities indicate that its supported.
2679 iounit_pg1_flags = le32_to_cpu(ioc->iounit_pg1.Flags);
2680 if ((ioc->facts.IOCCapabilities &
2681 MPI2_IOCFACTS_CAPABILITY_TASK_SET_FULL_HANDLING))
2683 ~MPI2_IOUNITPAGE1_DISABLE_TASK_SET_FULL_HANDLING;
2686 MPI2_IOUNITPAGE1_DISABLE_TASK_SET_FULL_HANDLING;
2687 ioc->iounit_pg1.Flags = cpu_to_le32(iounit_pg1_flags);
2688 mpt3sas_config_set_iounit_pg1(ioc, &mpi_reply, &ioc->iounit_pg1);
2690 if (ioc->iounit_pg8.NumSensors)
2691 ioc->temp_sensors_count = ioc->iounit_pg8.NumSensors;
2695 * _base_release_memory_pools - release memory
2696 * @ioc: per adapter object
2698 * Free memory allocated from _base_allocate_memory_pools.
2703 _base_release_memory_pools(struct MPT3SAS_ADAPTER *ioc)
2706 struct reply_post_struct *rps;
2708 dexitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
2712 pci_free_consistent(ioc->pdev, ioc->request_dma_sz,
2713 ioc->request, ioc->request_dma);
2714 dexitprintk(ioc, pr_info(MPT3SAS_FMT
2715 "request_pool(0x%p): free\n",
2716 ioc->name, ioc->request));
2717 ioc->request = NULL;
2721 pci_pool_free(ioc->sense_dma_pool, ioc->sense, ioc->sense_dma);
2722 if (ioc->sense_dma_pool)
2723 pci_pool_destroy(ioc->sense_dma_pool);
2724 dexitprintk(ioc, pr_info(MPT3SAS_FMT
2725 "sense_pool(0x%p): free\n",
2726 ioc->name, ioc->sense));
2731 pci_pool_free(ioc->reply_dma_pool, ioc->reply, ioc->reply_dma);
2732 if (ioc->reply_dma_pool)
2733 pci_pool_destroy(ioc->reply_dma_pool);
2734 dexitprintk(ioc, pr_info(MPT3SAS_FMT
2735 "reply_pool(0x%p): free\n",
2736 ioc->name, ioc->reply));
2740 if (ioc->reply_free) {
2741 pci_pool_free(ioc->reply_free_dma_pool, ioc->reply_free,
2742 ioc->reply_free_dma);
2743 if (ioc->reply_free_dma_pool)
2744 pci_pool_destroy(ioc->reply_free_dma_pool);
2745 dexitprintk(ioc, pr_info(MPT3SAS_FMT
2746 "reply_free_pool(0x%p): free\n",
2747 ioc->name, ioc->reply_free));
2748 ioc->reply_free = NULL;
2751 if (ioc->reply_post) {
2753 rps = &ioc->reply_post[i];
2754 if (rps->reply_post_free) {
2756 ioc->reply_post_free_dma_pool,
2757 rps->reply_post_free,
2758 rps->reply_post_free_dma);
2759 dexitprintk(ioc, pr_info(MPT3SAS_FMT
2760 "reply_post_free_pool(0x%p): free\n",
2761 ioc->name, rps->reply_post_free));
2762 rps->reply_post_free = NULL;
2764 } while (ioc->rdpq_array_enable &&
2765 (++i < ioc->reply_queue_count));
2767 if (ioc->reply_post_free_dma_pool)
2768 pci_pool_destroy(ioc->reply_post_free_dma_pool);
2769 kfree(ioc->reply_post);
2772 if (ioc->config_page) {
2773 dexitprintk(ioc, pr_info(MPT3SAS_FMT
2774 "config_page(0x%p): free\n", ioc->name,
2776 pci_free_consistent(ioc->pdev, ioc->config_page_sz,
2777 ioc->config_page, ioc->config_page_dma);
2780 if (ioc->scsi_lookup) {
2781 free_pages((ulong)ioc->scsi_lookup, ioc->scsi_lookup_pages);
2782 ioc->scsi_lookup = NULL;
2784 kfree(ioc->hpr_lookup);
2785 kfree(ioc->internal_lookup);
2786 if (ioc->chain_lookup) {
2787 for (i = 0; i < ioc->chain_depth; i++) {
2788 if (ioc->chain_lookup[i].chain_buffer)
2789 pci_pool_free(ioc->chain_dma_pool,
2790 ioc->chain_lookup[i].chain_buffer,
2791 ioc->chain_lookup[i].chain_buffer_dma);
2793 if (ioc->chain_dma_pool)
2794 pci_pool_destroy(ioc->chain_dma_pool);
2795 free_pages((ulong)ioc->chain_lookup, ioc->chain_pages);
2796 ioc->chain_lookup = NULL;
2801 * _base_allocate_memory_pools - allocate start of day memory pools
2802 * @ioc: per adapter object
2803 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2805 * Returns 0 success, anything else error
2808 _base_allocate_memory_pools(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
2810 struct mpt3sas_facts *facts;
2811 u16 max_sge_elements;
2812 u16 chains_needed_per_io;
2813 u32 sz, total_sz, reply_post_free_sz;
2815 u16 max_request_credit;
2816 unsigned short sg_tablesize;
2820 dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
2825 facts = &ioc->facts;
2827 /* command line tunables for max sgl entries */
2828 if (max_sgl_entries != -1)
2829 sg_tablesize = max_sgl_entries;
2831 sg_tablesize = MPT3SAS_SG_DEPTH;
2833 if (sg_tablesize < MPT3SAS_MIN_PHYS_SEGMENTS)
2834 sg_tablesize = MPT3SAS_MIN_PHYS_SEGMENTS;
2835 else if (sg_tablesize > MPT3SAS_MAX_PHYS_SEGMENTS) {
2836 sg_tablesize = min_t(unsigned short, sg_tablesize,
2837 SCSI_MAX_SG_CHAIN_SEGMENTS);
2839 "sg_tablesize(%u) is bigger than kernel"
2840 " defined SCSI_MAX_SG_SEGMENTS(%u)\n", ioc->name,
2841 sg_tablesize, MPT3SAS_MAX_PHYS_SEGMENTS);
2843 ioc->shost->sg_tablesize = sg_tablesize;
2845 ioc->hi_priority_depth = facts->HighPriorityCredit;
2846 ioc->internal_depth = ioc->hi_priority_depth + (5);
2847 /* command line tunables for max controller queue depth */
2848 if (max_queue_depth != -1 && max_queue_depth != 0) {
2849 max_request_credit = min_t(u16, max_queue_depth +
2850 ioc->hi_priority_depth + ioc->internal_depth,
2851 facts->RequestCredit);
2852 if (max_request_credit > MAX_HBA_QUEUE_DEPTH)
2853 max_request_credit = MAX_HBA_QUEUE_DEPTH;
2855 max_request_credit = min_t(u16, facts->RequestCredit,
2856 MAX_HBA_QUEUE_DEPTH);
2858 ioc->hba_queue_depth = max_request_credit;
2860 /* request frame size */
2861 ioc->request_sz = facts->IOCRequestFrameSize * 4;
2863 /* reply frame size */
2864 ioc->reply_sz = facts->ReplyFrameSize * 4;
2866 /* calculate the max scatter element size */
2867 sge_size = max_t(u16, ioc->sge_size, ioc->sge_size_ieee);
2871 /* calculate number of sg elements left over in the 1st frame */
2872 max_sge_elements = ioc->request_sz - ((sizeof(Mpi2SCSIIORequest_t) -
2873 sizeof(Mpi2SGEIOUnion_t)) + sge_size);
2874 ioc->max_sges_in_main_message = max_sge_elements/sge_size;
2876 /* now do the same for a chain buffer */
2877 max_sge_elements = ioc->request_sz - sge_size;
2878 ioc->max_sges_in_chain_message = max_sge_elements/sge_size;
2881 * MPT3SAS_SG_DEPTH = CONFIG_FUSION_MAX_SGE
2883 chains_needed_per_io = ((ioc->shost->sg_tablesize -
2884 ioc->max_sges_in_main_message)/ioc->max_sges_in_chain_message)
2886 if (chains_needed_per_io > facts->MaxChainDepth) {
2887 chains_needed_per_io = facts->MaxChainDepth;
2888 ioc->shost->sg_tablesize = min_t(u16,
2889 ioc->max_sges_in_main_message + (ioc->max_sges_in_chain_message
2890 * chains_needed_per_io), ioc->shost->sg_tablesize);
2892 ioc->chains_needed_per_io = chains_needed_per_io;
2894 /* reply free queue sizing - taking into account for 64 FW events */
2895 ioc->reply_free_queue_depth = ioc->hba_queue_depth + 64;
2897 /* calculate reply descriptor post queue depth */
2898 ioc->reply_post_queue_depth = ioc->hba_queue_depth +
2899 ioc->reply_free_queue_depth + 1 ;
2900 /* align the reply post queue on the next 16 count boundary */
2901 if (ioc->reply_post_queue_depth % 16)
2902 ioc->reply_post_queue_depth += 16 -
2903 (ioc->reply_post_queue_depth % 16);
2906 if (ioc->reply_post_queue_depth >
2907 facts->MaxReplyDescriptorPostQueueDepth) {
2908 ioc->reply_post_queue_depth =
2909 facts->MaxReplyDescriptorPostQueueDepth -
2910 (facts->MaxReplyDescriptorPostQueueDepth % 16);
2911 ioc->hba_queue_depth =
2912 ((ioc->reply_post_queue_depth - 64) / 2) - 1;
2913 ioc->reply_free_queue_depth = ioc->hba_queue_depth + 64;
2916 dinitprintk(ioc, pr_info(MPT3SAS_FMT "scatter gather: " \
2917 "sge_in_main_msg(%d), sge_per_chain(%d), sge_per_io(%d), "
2918 "chains_per_io(%d)\n", ioc->name, ioc->max_sges_in_main_message,
2919 ioc->max_sges_in_chain_message, ioc->shost->sg_tablesize,
2920 ioc->chains_needed_per_io));
2922 /* reply post queue, 16 byte align */
2923 reply_post_free_sz = ioc->reply_post_queue_depth *
2924 sizeof(Mpi2DefaultReplyDescriptor_t);
2926 sz = reply_post_free_sz;
2927 if (_base_is_controller_msix_enabled(ioc) && !ioc->rdpq_array_enable)
2928 sz *= ioc->reply_queue_count;
2930 ioc->reply_post = kcalloc((ioc->rdpq_array_enable) ?
2931 (ioc->reply_queue_count):1,
2932 sizeof(struct reply_post_struct), GFP_KERNEL);
2934 if (!ioc->reply_post) {
2935 pr_err(MPT3SAS_FMT "reply_post_free pool: kcalloc failed\n",
2939 ioc->reply_post_free_dma_pool = pci_pool_create("reply_post_free pool",
2940 ioc->pdev, sz, 16, 0);
2941 if (!ioc->reply_post_free_dma_pool) {
2943 "reply_post_free pool: pci_pool_create failed\n",
2949 ioc->reply_post[i].reply_post_free =
2950 pci_pool_alloc(ioc->reply_post_free_dma_pool,
2952 &ioc->reply_post[i].reply_post_free_dma);
2953 if (!ioc->reply_post[i].reply_post_free) {
2955 "reply_post_free pool: pci_pool_alloc failed\n",
2959 memset(ioc->reply_post[i].reply_post_free, 0, sz);
2960 dinitprintk(ioc, pr_info(MPT3SAS_FMT
2961 "reply post free pool (0x%p): depth(%d),"
2962 "element_size(%d), pool_size(%d kB)\n", ioc->name,
2963 ioc->reply_post[i].reply_post_free,
2964 ioc->reply_post_queue_depth, 8, sz/1024));
2965 dinitprintk(ioc, pr_info(MPT3SAS_FMT
2966 "reply_post_free_dma = (0x%llx)\n", ioc->name,
2967 (unsigned long long)
2968 ioc->reply_post[i].reply_post_free_dma));
2970 } while (ioc->rdpq_array_enable && (++i < ioc->reply_queue_count));
2972 if (ioc->dma_mask == 64) {
2973 if (_base_change_consistent_dma_mask(ioc, ioc->pdev) != 0) {
2975 "no suitable consistent DMA mask for %s\n",
2976 ioc->name, pci_name(ioc->pdev));
2981 ioc->scsiio_depth = ioc->hba_queue_depth -
2982 ioc->hi_priority_depth - ioc->internal_depth;
2984 /* set the scsi host can_queue depth
2985 * with some internal commands that could be outstanding
2987 ioc->shost->can_queue = ioc->scsiio_depth;
2988 dinitprintk(ioc, pr_info(MPT3SAS_FMT
2989 "scsi host: can_queue depth (%d)\n",
2990 ioc->name, ioc->shost->can_queue));
2993 /* contiguous pool for request and chains, 16 byte align, one extra "
2996 ioc->chain_depth = ioc->chains_needed_per_io * ioc->scsiio_depth;
2997 sz = ((ioc->scsiio_depth + 1) * ioc->request_sz);
2999 /* hi-priority queue */
3000 sz += (ioc->hi_priority_depth * ioc->request_sz);
3002 /* internal queue */
3003 sz += (ioc->internal_depth * ioc->request_sz);
3005 ioc->request_dma_sz = sz;
3006 ioc->request = pci_alloc_consistent(ioc->pdev, sz, &ioc->request_dma);
3007 if (!ioc->request) {
3008 pr_err(MPT3SAS_FMT "request pool: pci_alloc_consistent " \
3009 "failed: hba_depth(%d), chains_per_io(%d), frame_sz(%d), "
3010 "total(%d kB)\n", ioc->name, ioc->hba_queue_depth,
3011 ioc->chains_needed_per_io, ioc->request_sz, sz/1024);
3012 if (ioc->scsiio_depth < MPT3SAS_SAS_QUEUE_DEPTH)
3015 ioc->hba_queue_depth = max_request_credit - retry_sz;
3016 goto retry_allocation;
3020 pr_err(MPT3SAS_FMT "request pool: pci_alloc_consistent " \
3021 "succeed: hba_depth(%d), chains_per_io(%d), frame_sz(%d), "
3022 "total(%d kb)\n", ioc->name, ioc->hba_queue_depth,
3023 ioc->chains_needed_per_io, ioc->request_sz, sz/1024);
3025 /* hi-priority queue */
3026 ioc->hi_priority = ioc->request + ((ioc->scsiio_depth + 1) *
3028 ioc->hi_priority_dma = ioc->request_dma + ((ioc->scsiio_depth + 1) *
3031 /* internal queue */
3032 ioc->internal = ioc->hi_priority + (ioc->hi_priority_depth *
3034 ioc->internal_dma = ioc->hi_priority_dma + (ioc->hi_priority_depth *
3037 dinitprintk(ioc, pr_info(MPT3SAS_FMT
3038 "request pool(0x%p): depth(%d), frame_size(%d), pool_size(%d kB)\n",
3039 ioc->name, ioc->request, ioc->hba_queue_depth, ioc->request_sz,
3040 (ioc->hba_queue_depth * ioc->request_sz)/1024));
3042 dinitprintk(ioc, pr_info(MPT3SAS_FMT "request pool: dma(0x%llx)\n",
3043 ioc->name, (unsigned long long) ioc->request_dma));
3046 sz = ioc->scsiio_depth * sizeof(struct scsiio_tracker);
3047 ioc->scsi_lookup_pages = get_order(sz);
3048 ioc->scsi_lookup = (struct scsiio_tracker *)__get_free_pages(
3049 GFP_KERNEL, ioc->scsi_lookup_pages);
3050 if (!ioc->scsi_lookup) {
3051 pr_err(MPT3SAS_FMT "scsi_lookup: get_free_pages failed, sz(%d)\n",
3052 ioc->name, (int)sz);
3056 dinitprintk(ioc, pr_info(MPT3SAS_FMT "scsiio(0x%p): depth(%d)\n",
3057 ioc->name, ioc->request, ioc->scsiio_depth));
3059 ioc->chain_depth = min_t(u32, ioc->chain_depth, MAX_CHAIN_DEPTH);
3060 sz = ioc->chain_depth * sizeof(struct chain_tracker);
3061 ioc->chain_pages = get_order(sz);
3062 ioc->chain_lookup = (struct chain_tracker *)__get_free_pages(
3063 GFP_KERNEL, ioc->chain_pages);
3064 if (!ioc->chain_lookup) {
3065 pr_err(MPT3SAS_FMT "chain_lookup: __get_free_pages failed\n",
3069 ioc->chain_dma_pool = pci_pool_create("chain pool", ioc->pdev,
3070 ioc->request_sz, 16, 0);
3071 if (!ioc->chain_dma_pool) {
3072 pr_err(MPT3SAS_FMT "chain_dma_pool: pci_pool_create failed\n",
3076 for (i = 0; i < ioc->chain_depth; i++) {
3077 ioc->chain_lookup[i].chain_buffer = pci_pool_alloc(
3078 ioc->chain_dma_pool , GFP_KERNEL,
3079 &ioc->chain_lookup[i].chain_buffer_dma);
3080 if (!ioc->chain_lookup[i].chain_buffer) {
3081 ioc->chain_depth = i;
3084 total_sz += ioc->request_sz;
3087 dinitprintk(ioc, pr_info(MPT3SAS_FMT
3088 "chain pool depth(%d), frame_size(%d), pool_size(%d kB)\n",
3089 ioc->name, ioc->chain_depth, ioc->request_sz,
3090 ((ioc->chain_depth * ioc->request_sz))/1024));
3092 /* initialize hi-priority queue smid's */
3093 ioc->hpr_lookup = kcalloc(ioc->hi_priority_depth,
3094 sizeof(struct request_tracker), GFP_KERNEL);
3095 if (!ioc->hpr_lookup) {
3096 pr_err(MPT3SAS_FMT "hpr_lookup: kcalloc failed\n",
3100 ioc->hi_priority_smid = ioc->scsiio_depth + 1;
3101 dinitprintk(ioc, pr_info(MPT3SAS_FMT
3102 "hi_priority(0x%p): depth(%d), start smid(%d)\n",
3103 ioc->name, ioc->hi_priority,
3104 ioc->hi_priority_depth, ioc->hi_priority_smid));
3106 /* initialize internal queue smid's */
3107 ioc->internal_lookup = kcalloc(ioc->internal_depth,
3108 sizeof(struct request_tracker), GFP_KERNEL);
3109 if (!ioc->internal_lookup) {
3110 pr_err(MPT3SAS_FMT "internal_lookup: kcalloc failed\n",
3114 ioc->internal_smid = ioc->hi_priority_smid + ioc->hi_priority_depth;
3115 dinitprintk(ioc, pr_info(MPT3SAS_FMT
3116 "internal(0x%p): depth(%d), start smid(%d)\n",
3117 ioc->name, ioc->internal,
3118 ioc->internal_depth, ioc->internal_smid));
3120 /* sense buffers, 4 byte align */
3121 sz = ioc->scsiio_depth * SCSI_SENSE_BUFFERSIZE;
3122 ioc->sense_dma_pool = pci_pool_create("sense pool", ioc->pdev, sz, 4,
3124 if (!ioc->sense_dma_pool) {
3125 pr_err(MPT3SAS_FMT "sense pool: pci_pool_create failed\n",
3129 ioc->sense = pci_pool_alloc(ioc->sense_dma_pool , GFP_KERNEL,
3132 pr_err(MPT3SAS_FMT "sense pool: pci_pool_alloc failed\n",
3136 dinitprintk(ioc, pr_info(MPT3SAS_FMT
3137 "sense pool(0x%p): depth(%d), element_size(%d), pool_size"
3138 "(%d kB)\n", ioc->name, ioc->sense, ioc->scsiio_depth,
3139 SCSI_SENSE_BUFFERSIZE, sz/1024));
3140 dinitprintk(ioc, pr_info(MPT3SAS_FMT "sense_dma(0x%llx)\n",
3141 ioc->name, (unsigned long long)ioc->sense_dma));
3144 /* reply pool, 4 byte align */
3145 sz = ioc->reply_free_queue_depth * ioc->reply_sz;
3146 ioc->reply_dma_pool = pci_pool_create("reply pool", ioc->pdev, sz, 4,
3148 if (!ioc->reply_dma_pool) {
3149 pr_err(MPT3SAS_FMT "reply pool: pci_pool_create failed\n",
3153 ioc->reply = pci_pool_alloc(ioc->reply_dma_pool , GFP_KERNEL,
3156 pr_err(MPT3SAS_FMT "reply pool: pci_pool_alloc failed\n",
3160 ioc->reply_dma_min_address = (u32)(ioc->reply_dma);
3161 ioc->reply_dma_max_address = (u32)(ioc->reply_dma) + sz;
3162 dinitprintk(ioc, pr_info(MPT3SAS_FMT
3163 "reply pool(0x%p): depth(%d), frame_size(%d), pool_size(%d kB)\n",
3164 ioc->name, ioc->reply,
3165 ioc->reply_free_queue_depth, ioc->reply_sz, sz/1024));
3166 dinitprintk(ioc, pr_info(MPT3SAS_FMT "reply_dma(0x%llx)\n",
3167 ioc->name, (unsigned long long)ioc->reply_dma));
3170 /* reply free queue, 16 byte align */
3171 sz = ioc->reply_free_queue_depth * 4;
3172 ioc->reply_free_dma_pool = pci_pool_create("reply_free pool",
3173 ioc->pdev, sz, 16, 0);
3174 if (!ioc->reply_free_dma_pool) {
3175 pr_err(MPT3SAS_FMT "reply_free pool: pci_pool_create failed\n",
3179 ioc->reply_free = pci_pool_alloc(ioc->reply_free_dma_pool , GFP_KERNEL,
3180 &ioc->reply_free_dma);
3181 if (!ioc->reply_free) {
3182 pr_err(MPT3SAS_FMT "reply_free pool: pci_pool_alloc failed\n",
3186 memset(ioc->reply_free, 0, sz);
3187 dinitprintk(ioc, pr_info(MPT3SAS_FMT "reply_free pool(0x%p): " \
3188 "depth(%d), element_size(%d), pool_size(%d kB)\n", ioc->name,
3189 ioc->reply_free, ioc->reply_free_queue_depth, 4, sz/1024));
3190 dinitprintk(ioc, pr_info(MPT3SAS_FMT
3191 "reply_free_dma (0x%llx)\n",
3192 ioc->name, (unsigned long long)ioc->reply_free_dma));
3195 ioc->config_page_sz = 512;
3196 ioc->config_page = pci_alloc_consistent(ioc->pdev,
3197 ioc->config_page_sz, &ioc->config_page_dma);
3198 if (!ioc->config_page) {
3200 "config page: pci_pool_alloc failed\n",
3204 dinitprintk(ioc, pr_info(MPT3SAS_FMT
3205 "config page(0x%p): size(%d)\n",
3206 ioc->name, ioc->config_page, ioc->config_page_sz));
3207 dinitprintk(ioc, pr_info(MPT3SAS_FMT "config_page_dma(0x%llx)\n",
3208 ioc->name, (unsigned long long)ioc->config_page_dma));
3209 total_sz += ioc->config_page_sz;
3211 pr_info(MPT3SAS_FMT "Allocated physical memory: size(%d kB)\n",
3212 ioc->name, total_sz/1024);
3214 "Current Controller Queue Depth(%d),Max Controller Queue Depth(%d)\n",
3215 ioc->name, ioc->shost->can_queue, facts->RequestCredit);
3216 pr_info(MPT3SAS_FMT "Scatter Gather Elements per IO(%d)\n",
3217 ioc->name, ioc->shost->sg_tablesize);
3225 * mpt3sas_base_get_iocstate - Get the current state of a MPT adapter.
3226 * @ioc: Pointer to MPT_ADAPTER structure
3227 * @cooked: Request raw or cooked IOC state
3229 * Returns all IOC Doorbell register bits if cooked==0, else just the
3230 * Doorbell bits in MPI_IOC_STATE_MASK.
3233 mpt3sas_base_get_iocstate(struct MPT3SAS_ADAPTER *ioc, int cooked)
3237 s = readl(&ioc->chip->Doorbell);
3238 sc = s & MPI2_IOC_STATE_MASK;
3239 return cooked ? sc : s;
3243 * _base_wait_on_iocstate - waiting on a particular ioc state
3244 * @ioc_state: controller state { READY, OPERATIONAL, or RESET }
3245 * @timeout: timeout in second
3246 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3248 * Returns 0 for success, non-zero for failure.
3251 _base_wait_on_iocstate(struct MPT3SAS_ADAPTER *ioc, u32 ioc_state, int timeout,
3258 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
3260 current_state = mpt3sas_base_get_iocstate(ioc, 1);
3261 if (current_state == ioc_state)
3263 if (count && current_state == MPI2_IOC_STATE_FAULT)
3265 if (sleep_flag == CAN_SLEEP)
3266 usleep_range(1000, 1500);
3272 return current_state;
3276 * _base_wait_for_doorbell_int - waiting for controller interrupt(generated by
3277 * a write to the doorbell)
3278 * @ioc: per adapter object
3279 * @timeout: timeout in second
3280 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3282 * Returns 0 for success, non-zero for failure.
3284 * Notes: MPI2_HIS_IOC2SYS_DB_STATUS - set to one when IOC writes to doorbell.
3287 _base_diag_reset(struct MPT3SAS_ADAPTER *ioc, int sleep_flag);
3290 _base_wait_for_doorbell_int(struct MPT3SAS_ADAPTER *ioc, int timeout,
3297 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
3299 int_status = readl(&ioc->chip->HostInterruptStatus);
3300 if (int_status & MPI2_HIS_IOC2SYS_DB_STATUS) {
3301 dhsprintk(ioc, pr_info(MPT3SAS_FMT
3302 "%s: successful count(%d), timeout(%d)\n",
3303 ioc->name, __func__, count, timeout));
3306 if (sleep_flag == CAN_SLEEP)
3307 usleep_range(1000, 1500);
3314 "%s: failed due to timeout count(%d), int_status(%x)!\n",
3315 ioc->name, __func__, count, int_status);
3320 * _base_wait_for_doorbell_ack - waiting for controller to read the doorbell.
3321 * @ioc: per adapter object
3322 * @timeout: timeout in second
3323 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3325 * Returns 0 for success, non-zero for failure.
3327 * Notes: MPI2_HIS_SYS2IOC_DB_STATUS - set to one when host writes to
3331 _base_wait_for_doorbell_ack(struct MPT3SAS_ADAPTER *ioc, int timeout,
3339 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
3341 int_status = readl(&ioc->chip->HostInterruptStatus);
3342 if (!(int_status & MPI2_HIS_SYS2IOC_DB_STATUS)) {
3343 dhsprintk(ioc, pr_info(MPT3SAS_FMT
3344 "%s: successful count(%d), timeout(%d)\n",
3345 ioc->name, __func__, count, timeout));
3347 } else if (int_status & MPI2_HIS_IOC2SYS_DB_STATUS) {
3348 doorbell = readl(&ioc->chip->Doorbell);
3349 if ((doorbell & MPI2_IOC_STATE_MASK) ==
3350 MPI2_IOC_STATE_FAULT) {
3351 mpt3sas_base_fault_info(ioc , doorbell);
3354 } else if (int_status == 0xFFFFFFFF)
3357 if (sleep_flag == CAN_SLEEP)
3358 usleep_range(1000, 1500);
3366 "%s: failed due to timeout count(%d), int_status(%x)!\n",
3367 ioc->name, __func__, count, int_status);
3372 * _base_wait_for_doorbell_not_used - waiting for doorbell to not be in use
3373 * @ioc: per adapter object
3374 * @timeout: timeout in second
3375 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3377 * Returns 0 for success, non-zero for failure.
3381 _base_wait_for_doorbell_not_used(struct MPT3SAS_ADAPTER *ioc, int timeout,
3388 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
3390 doorbell_reg = readl(&ioc->chip->Doorbell);
3391 if (!(doorbell_reg & MPI2_DOORBELL_USED)) {
3392 dhsprintk(ioc, pr_info(MPT3SAS_FMT
3393 "%s: successful count(%d), timeout(%d)\n",
3394 ioc->name, __func__, count, timeout));
3397 if (sleep_flag == CAN_SLEEP)
3398 usleep_range(1000, 1500);
3405 "%s: failed due to timeout count(%d), doorbell_reg(%x)!\n",
3406 ioc->name, __func__, count, doorbell_reg);
3411 * _base_send_ioc_reset - send doorbell reset
3412 * @ioc: per adapter object
3413 * @reset_type: currently only supports: MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET
3414 * @timeout: timeout in second
3415 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3417 * Returns 0 for success, non-zero for failure.
3420 _base_send_ioc_reset(struct MPT3SAS_ADAPTER *ioc, u8 reset_type, int timeout,
3426 if (reset_type != MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET) {
3427 pr_err(MPT3SAS_FMT "%s: unknown reset_type\n",
3428 ioc->name, __func__);
3432 if (!(ioc->facts.IOCCapabilities &
3433 MPI2_IOCFACTS_CAPABILITY_EVENT_REPLAY))
3436 pr_info(MPT3SAS_FMT "sending message unit reset !!\n", ioc->name);
3438 writel(reset_type << MPI2_DOORBELL_FUNCTION_SHIFT,
3439 &ioc->chip->Doorbell);
3440 if ((_base_wait_for_doorbell_ack(ioc, 15, sleep_flag))) {
3444 ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY,
3445 timeout, sleep_flag);
3448 "%s: failed going to ready state (ioc_state=0x%x)\n",
3449 ioc->name, __func__, ioc_state);
3454 pr_info(MPT3SAS_FMT "message unit reset: %s\n",
3455 ioc->name, ((r == 0) ? "SUCCESS" : "FAILED"));
3460 * _base_handshake_req_reply_wait - send request thru doorbell interface
3461 * @ioc: per adapter object
3462 * @request_bytes: request length
3463 * @request: pointer having request payload
3464 * @reply_bytes: reply length
3465 * @reply: pointer to reply payload
3466 * @timeout: timeout in second
3467 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3469 * Returns 0 for success, non-zero for failure.
3472 _base_handshake_req_reply_wait(struct MPT3SAS_ADAPTER *ioc, int request_bytes,
3473 u32 *request, int reply_bytes, u16 *reply, int timeout, int sleep_flag)
3475 MPI2DefaultReply_t *default_reply = (MPI2DefaultReply_t *)reply;
3481 /* make sure doorbell is not in use */
3482 if ((readl(&ioc->chip->Doorbell) & MPI2_DOORBELL_USED)) {
3484 "doorbell is in use (line=%d)\n",
3485 ioc->name, __LINE__);
3489 /* clear pending doorbell interrupts from previous state changes */
3490 if (readl(&ioc->chip->HostInterruptStatus) &
3491 MPI2_HIS_IOC2SYS_DB_STATUS)
3492 writel(0, &ioc->chip->HostInterruptStatus);
3494 /* send message to ioc */
3495 writel(((MPI2_FUNCTION_HANDSHAKE<<MPI2_DOORBELL_FUNCTION_SHIFT) |
3496 ((request_bytes/4)<<MPI2_DOORBELL_ADD_DWORDS_SHIFT)),
3497 &ioc->chip->Doorbell);
3499 if ((_base_wait_for_doorbell_int(ioc, 5, NO_SLEEP))) {
3501 "doorbell handshake int failed (line=%d)\n",
3502 ioc->name, __LINE__);
3505 writel(0, &ioc->chip->HostInterruptStatus);
3507 if ((_base_wait_for_doorbell_ack(ioc, 5, sleep_flag))) {
3509 "doorbell handshake ack failed (line=%d)\n",
3510 ioc->name, __LINE__);
3514 /* send message 32-bits at a time */
3515 for (i = 0, failed = 0; i < request_bytes/4 && !failed; i++) {
3516 writel(cpu_to_le32(request[i]), &ioc->chip->Doorbell);
3517 if ((_base_wait_for_doorbell_ack(ioc, 5, sleep_flag)))
3523 "doorbell handshake sending request failed (line=%d)\n",
3524 ioc->name, __LINE__);
3528 /* now wait for the reply */
3529 if ((_base_wait_for_doorbell_int(ioc, timeout, sleep_flag))) {
3531 "doorbell handshake int failed (line=%d)\n",
3532 ioc->name, __LINE__);
3536 /* read the first two 16-bits, it gives the total length of the reply */
3537 reply[0] = le16_to_cpu(readl(&ioc->chip->Doorbell)
3538 & MPI2_DOORBELL_DATA_MASK);
3539 writel(0, &ioc->chip->HostInterruptStatus);
3540 if ((_base_wait_for_doorbell_int(ioc, 5, sleep_flag))) {
3542 "doorbell handshake int failed (line=%d)\n",
3543 ioc->name, __LINE__);
3546 reply[1] = le16_to_cpu(readl(&ioc->chip->Doorbell)
3547 & MPI2_DOORBELL_DATA_MASK);
3548 writel(0, &ioc->chip->HostInterruptStatus);
3550 for (i = 2; i < default_reply->MsgLength * 2; i++) {
3551 if ((_base_wait_for_doorbell_int(ioc, 5, sleep_flag))) {
3553 "doorbell handshake int failed (line=%d)\n",
3554 ioc->name, __LINE__);
3557 if (i >= reply_bytes/2) /* overflow case */
3558 dummy = readl(&ioc->chip->Doorbell);
3560 reply[i] = le16_to_cpu(readl(&ioc->chip->Doorbell)
3561 & MPI2_DOORBELL_DATA_MASK);
3562 writel(0, &ioc->chip->HostInterruptStatus);
3565 _base_wait_for_doorbell_int(ioc, 5, sleep_flag);
3566 if (_base_wait_for_doorbell_not_used(ioc, 5, sleep_flag) != 0) {
3567 dhsprintk(ioc, pr_info(MPT3SAS_FMT
3568 "doorbell is in use (line=%d)\n", ioc->name, __LINE__));
3570 writel(0, &ioc->chip->HostInterruptStatus);
3572 if (ioc->logging_level & MPT_DEBUG_INIT) {
3573 mfp = (__le32 *)reply;
3574 pr_info("\toffset:data\n");
3575 for (i = 0; i < reply_bytes/4; i++)
3576 pr_info("\t[0x%02x]:%08x\n", i*4,
3577 le32_to_cpu(mfp[i]));
3583 * mpt3sas_base_sas_iounit_control - send sas iounit control to FW
3584 * @ioc: per adapter object
3585 * @mpi_reply: the reply payload from FW
3586 * @mpi_request: the request payload sent to FW
3588 * The SAS IO Unit Control Request message allows the host to perform low-level
3589 * operations, such as resets on the PHYs of the IO Unit, also allows the host
3590 * to obtain the IOC assigned device handles for a device if it has other
3591 * identifying information about the device, in addition allows the host to
3592 * remove IOC resources associated with the device.
3594 * Returns 0 for success, non-zero for failure.
3597 mpt3sas_base_sas_iounit_control(struct MPT3SAS_ADAPTER *ioc,
3598 Mpi2SasIoUnitControlReply_t *mpi_reply,
3599 Mpi2SasIoUnitControlRequest_t *mpi_request)
3603 unsigned long timeleft;
3604 bool issue_reset = false;
3607 u16 wait_state_count;
3609 dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
3612 mutex_lock(&ioc->base_cmds.mutex);
3614 if (ioc->base_cmds.status != MPT3_CMD_NOT_USED) {
3615 pr_err(MPT3SAS_FMT "%s: base_cmd in use\n",
3616 ioc->name, __func__);
3621 wait_state_count = 0;
3622 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
3623 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
3624 if (wait_state_count++ == 10) {
3626 "%s: failed due to ioc not operational\n",
3627 ioc->name, __func__);
3632 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
3634 "%s: waiting for operational state(count=%d)\n",
3635 ioc->name, __func__, wait_state_count);
3638 smid = mpt3sas_base_get_smid(ioc, ioc->base_cb_idx);
3640 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
3641 ioc->name, __func__);
3647 ioc->base_cmds.status = MPT3_CMD_PENDING;
3648 request = mpt3sas_base_get_msg_frame(ioc, smid);
3649 ioc->base_cmds.smid = smid;
3650 memcpy(request, mpi_request, sizeof(Mpi2SasIoUnitControlRequest_t));
3651 if (mpi_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET ||
3652 mpi_request->Operation == MPI2_SAS_OP_PHY_LINK_RESET)
3653 ioc->ioc_link_reset_in_progress = 1;
3654 init_completion(&ioc->base_cmds.done);
3655 mpt3sas_base_put_smid_default(ioc, smid);
3656 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done,
3657 msecs_to_jiffies(10000));
3658 if ((mpi_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET ||
3659 mpi_request->Operation == MPI2_SAS_OP_PHY_LINK_RESET) &&
3660 ioc->ioc_link_reset_in_progress)
3661 ioc->ioc_link_reset_in_progress = 0;
3662 if (!(ioc->base_cmds.status & MPT3_CMD_COMPLETE)) {
3663 pr_err(MPT3SAS_FMT "%s: timeout\n",
3664 ioc->name, __func__);
3665 _debug_dump_mf(mpi_request,
3666 sizeof(Mpi2SasIoUnitControlRequest_t)/4);
3667 if (!(ioc->base_cmds.status & MPT3_CMD_RESET))
3669 goto issue_host_reset;
3671 if (ioc->base_cmds.status & MPT3_CMD_REPLY_VALID)
3672 memcpy(mpi_reply, ioc->base_cmds.reply,
3673 sizeof(Mpi2SasIoUnitControlReply_t));
3675 memset(mpi_reply, 0, sizeof(Mpi2SasIoUnitControlReply_t));
3676 ioc->base_cmds.status = MPT3_CMD_NOT_USED;
3681 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
3683 ioc->base_cmds.status = MPT3_CMD_NOT_USED;
3686 mutex_unlock(&ioc->base_cmds.mutex);
3691 * mpt3sas_base_scsi_enclosure_processor - sending request to sep device
3692 * @ioc: per adapter object
3693 * @mpi_reply: the reply payload from FW
3694 * @mpi_request: the request payload sent to FW
3696 * The SCSI Enclosure Processor request message causes the IOC to
3697 * communicate with SES devices to control LED status signals.
3699 * Returns 0 for success, non-zero for failure.
3702 mpt3sas_base_scsi_enclosure_processor(struct MPT3SAS_ADAPTER *ioc,
3703 Mpi2SepReply_t *mpi_reply, Mpi2SepRequest_t *mpi_request)
3707 unsigned long timeleft;
3708 bool issue_reset = false;
3711 u16 wait_state_count;
3713 dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
3716 mutex_lock(&ioc->base_cmds.mutex);
3718 if (ioc->base_cmds.status != MPT3_CMD_NOT_USED) {
3719 pr_err(MPT3SAS_FMT "%s: base_cmd in use\n",
3720 ioc->name, __func__);
3725 wait_state_count = 0;
3726 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
3727 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
3728 if (wait_state_count++ == 10) {
3730 "%s: failed due to ioc not operational\n",
3731 ioc->name, __func__);
3736 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
3738 "%s: waiting for operational state(count=%d)\n",
3740 __func__, wait_state_count);
3743 smid = mpt3sas_base_get_smid(ioc, ioc->base_cb_idx);
3745 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
3746 ioc->name, __func__);
3752 ioc->base_cmds.status = MPT3_CMD_PENDING;
3753 request = mpt3sas_base_get_msg_frame(ioc, smid);
3754 ioc->base_cmds.smid = smid;
3755 memcpy(request, mpi_request, sizeof(Mpi2SepReply_t));
3756 init_completion(&ioc->base_cmds.done);
3757 mpt3sas_base_put_smid_default(ioc, smid);
3758 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done,
3759 msecs_to_jiffies(10000));
3760 if (!(ioc->base_cmds.status & MPT3_CMD_COMPLETE)) {
3761 pr_err(MPT3SAS_FMT "%s: timeout\n",
3762 ioc->name, __func__);
3763 _debug_dump_mf(mpi_request,
3764 sizeof(Mpi2SepRequest_t)/4);
3765 if (!(ioc->base_cmds.status & MPT3_CMD_RESET))
3766 issue_reset = false;
3767 goto issue_host_reset;
3769 if (ioc->base_cmds.status & MPT3_CMD_REPLY_VALID)
3770 memcpy(mpi_reply, ioc->base_cmds.reply,
3771 sizeof(Mpi2SepReply_t));
3773 memset(mpi_reply, 0, sizeof(Mpi2SepReply_t));
3774 ioc->base_cmds.status = MPT3_CMD_NOT_USED;
3779 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
3781 ioc->base_cmds.status = MPT3_CMD_NOT_USED;
3784 mutex_unlock(&ioc->base_cmds.mutex);
3789 * _base_get_port_facts - obtain port facts reply and save in ioc
3790 * @ioc: per adapter object
3791 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3793 * Returns 0 for success, non-zero for failure.
3796 _base_get_port_facts(struct MPT3SAS_ADAPTER *ioc, int port, int sleep_flag)
3798 Mpi2PortFactsRequest_t mpi_request;
3799 Mpi2PortFactsReply_t mpi_reply;
3800 struct mpt3sas_port_facts *pfacts;
3801 int mpi_reply_sz, mpi_request_sz, r;
3803 dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
3806 mpi_reply_sz = sizeof(Mpi2PortFactsReply_t);
3807 mpi_request_sz = sizeof(Mpi2PortFactsRequest_t);
3808 memset(&mpi_request, 0, mpi_request_sz);
3809 mpi_request.Function = MPI2_FUNCTION_PORT_FACTS;
3810 mpi_request.PortNumber = port;
3811 r = _base_handshake_req_reply_wait(ioc, mpi_request_sz,
3812 (u32 *)&mpi_request, mpi_reply_sz, (u16 *)&mpi_reply, 5, CAN_SLEEP);
3815 pr_err(MPT3SAS_FMT "%s: handshake failed (r=%d)\n",
3816 ioc->name, __func__, r);
3820 pfacts = &ioc->pfacts[port];
3821 memset(pfacts, 0, sizeof(struct mpt3sas_port_facts));
3822 pfacts->PortNumber = mpi_reply.PortNumber;
3823 pfacts->VP_ID = mpi_reply.VP_ID;
3824 pfacts->VF_ID = mpi_reply.VF_ID;
3825 pfacts->MaxPostedCmdBuffers =
3826 le16_to_cpu(mpi_reply.MaxPostedCmdBuffers);
3832 * _base_wait_for_iocstate - Wait until the card is in READY or OPERATIONAL
3833 * @ioc: per adapter object
3835 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3837 * Returns 0 for success, non-zero for failure.
3840 _base_wait_for_iocstate(struct MPT3SAS_ADAPTER *ioc, int timeout,
3846 dinitprintk(ioc, printk(MPT3SAS_FMT "%s\n", ioc->name,
3849 if (ioc->pci_error_recovery) {
3850 dfailprintk(ioc, printk(MPT3SAS_FMT
3851 "%s: host in pci error recovery\n", ioc->name, __func__));
3855 ioc_state = mpt3sas_base_get_iocstate(ioc, 0);
3856 dhsprintk(ioc, printk(MPT3SAS_FMT "%s: ioc_state(0x%08x)\n",
3857 ioc->name, __func__, ioc_state));
3859 if (((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_READY) ||
3860 (ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_OPERATIONAL)
3863 if (ioc_state & MPI2_DOORBELL_USED) {
3864 dhsprintk(ioc, printk(MPT3SAS_FMT
3865 "unexpected doorbell active!\n", ioc->name));
3866 goto issue_diag_reset;
3869 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
3870 mpt3sas_base_fault_info(ioc, ioc_state &
3871 MPI2_DOORBELL_DATA_MASK);
3872 goto issue_diag_reset;
3875 ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY,
3876 timeout, sleep_flag);
3878 dfailprintk(ioc, printk(MPT3SAS_FMT
3879 "%s: failed going to ready state (ioc_state=0x%x)\n",
3880 ioc->name, __func__, ioc_state));
3885 rc = _base_diag_reset(ioc, sleep_flag);
3890 * _base_get_ioc_facts - obtain ioc facts reply and save in ioc
3891 * @ioc: per adapter object
3892 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3894 * Returns 0 for success, non-zero for failure.
3897 _base_get_ioc_facts(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
3899 Mpi2IOCFactsRequest_t mpi_request;
3900 Mpi2IOCFactsReply_t mpi_reply;
3901 struct mpt3sas_facts *facts;
3902 int mpi_reply_sz, mpi_request_sz, r;
3904 dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
3907 r = _base_wait_for_iocstate(ioc, 10, sleep_flag);
3909 dfailprintk(ioc, printk(MPT3SAS_FMT
3910 "%s: failed getting to correct state\n",
3911 ioc->name, __func__));
3914 mpi_reply_sz = sizeof(Mpi2IOCFactsReply_t);
3915 mpi_request_sz = sizeof(Mpi2IOCFactsRequest_t);
3916 memset(&mpi_request, 0, mpi_request_sz);
3917 mpi_request.Function = MPI2_FUNCTION_IOC_FACTS;
3918 r = _base_handshake_req_reply_wait(ioc, mpi_request_sz,
3919 (u32 *)&mpi_request, mpi_reply_sz, (u16 *)&mpi_reply, 5, CAN_SLEEP);
3922 pr_err(MPT3SAS_FMT "%s: handshake failed (r=%d)\n",
3923 ioc->name, __func__, r);
3927 facts = &ioc->facts;
3928 memset(facts, 0, sizeof(struct mpt3sas_facts));
3929 facts->MsgVersion = le16_to_cpu(mpi_reply.MsgVersion);
3930 facts->HeaderVersion = le16_to_cpu(mpi_reply.HeaderVersion);
3931 facts->VP_ID = mpi_reply.VP_ID;
3932 facts->VF_ID = mpi_reply.VF_ID;
3933 facts->IOCExceptions = le16_to_cpu(mpi_reply.IOCExceptions);
3934 facts->MaxChainDepth = mpi_reply.MaxChainDepth;
3935 facts->WhoInit = mpi_reply.WhoInit;
3936 facts->NumberOfPorts = mpi_reply.NumberOfPorts;
3937 facts->MaxMSIxVectors = mpi_reply.MaxMSIxVectors;
3938 facts->RequestCredit = le16_to_cpu(mpi_reply.RequestCredit);
3939 facts->MaxReplyDescriptorPostQueueDepth =
3940 le16_to_cpu(mpi_reply.MaxReplyDescriptorPostQueueDepth);
3941 facts->ProductID = le16_to_cpu(mpi_reply.ProductID);
3942 facts->IOCCapabilities = le32_to_cpu(mpi_reply.IOCCapabilities);
3943 if ((facts->IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID))
3944 ioc->ir_firmware = 1;
3945 if ((facts->IOCCapabilities &
3946 MPI2_IOCFACTS_CAPABILITY_RDPQ_ARRAY_CAPABLE))
3947 ioc->rdpq_array_capable = 1;
3948 facts->FWVersion.Word = le32_to_cpu(mpi_reply.FWVersion.Word);
3949 facts->IOCRequestFrameSize =
3950 le16_to_cpu(mpi_reply.IOCRequestFrameSize);
3951 facts->MaxInitiators = le16_to_cpu(mpi_reply.MaxInitiators);
3952 facts->MaxTargets = le16_to_cpu(mpi_reply.MaxTargets);
3953 ioc->shost->max_id = -1;
3954 facts->MaxSasExpanders = le16_to_cpu(mpi_reply.MaxSasExpanders);
3955 facts->MaxEnclosures = le16_to_cpu(mpi_reply.MaxEnclosures);
3956 facts->ProtocolFlags = le16_to_cpu(mpi_reply.ProtocolFlags);
3957 facts->HighPriorityCredit =
3958 le16_to_cpu(mpi_reply.HighPriorityCredit);
3959 facts->ReplyFrameSize = mpi_reply.ReplyFrameSize;
3960 facts->MaxDevHandle = le16_to_cpu(mpi_reply.MaxDevHandle);
3962 dinitprintk(ioc, pr_info(MPT3SAS_FMT
3963 "hba queue depth(%d), max chains per io(%d)\n",
3964 ioc->name, facts->RequestCredit,
3965 facts->MaxChainDepth));
3966 dinitprintk(ioc, pr_info(MPT3SAS_FMT
3967 "request frame size(%d), reply frame size(%d)\n", ioc->name,
3968 facts->IOCRequestFrameSize * 4, facts->ReplyFrameSize * 4));
3973 * _base_send_ioc_init - send ioc_init to firmware
3974 * @ioc: per adapter object
3975 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3977 * Returns 0 for success, non-zero for failure.
3980 _base_send_ioc_init(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
3982 Mpi2IOCInitRequest_t mpi_request;
3983 Mpi2IOCInitReply_t mpi_reply;
3985 struct timeval current_time;
3987 u32 reply_post_free_array_sz = 0;
3988 Mpi2IOCInitRDPQArrayEntry *reply_post_free_array = NULL;
3989 dma_addr_t reply_post_free_array_dma;
3991 dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
3994 memset(&mpi_request, 0, sizeof(Mpi2IOCInitRequest_t));
3995 mpi_request.Function = MPI2_FUNCTION_IOC_INIT;
3996 mpi_request.WhoInit = MPI2_WHOINIT_HOST_DRIVER;
3997 mpi_request.VF_ID = 0; /* TODO */
3998 mpi_request.VP_ID = 0;
3999 mpi_request.MsgVersion = cpu_to_le16(MPI25_VERSION);
4000 mpi_request.HeaderVersion = cpu_to_le16(MPI2_HEADER_VERSION);
4002 if (_base_is_controller_msix_enabled(ioc))
4003 mpi_request.HostMSIxVectors = ioc->reply_queue_count;
4004 mpi_request.SystemRequestFrameSize = cpu_to_le16(ioc->request_sz/4);
4005 mpi_request.ReplyDescriptorPostQueueDepth =
4006 cpu_to_le16(ioc->reply_post_queue_depth);
4007 mpi_request.ReplyFreeQueueDepth =
4008 cpu_to_le16(ioc->reply_free_queue_depth);
4010 mpi_request.SenseBufferAddressHigh =
4011 cpu_to_le32((u64)ioc->sense_dma >> 32);
4012 mpi_request.SystemReplyAddressHigh =
4013 cpu_to_le32((u64)ioc->reply_dma >> 32);
4014 mpi_request.SystemRequestFrameBaseAddress =
4015 cpu_to_le64((u64)ioc->request_dma);
4016 mpi_request.ReplyFreeQueueAddress =
4017 cpu_to_le64((u64)ioc->reply_free_dma);
4019 if (ioc->rdpq_array_enable) {
4020 reply_post_free_array_sz = ioc->reply_queue_count *
4021 sizeof(Mpi2IOCInitRDPQArrayEntry);
4022 reply_post_free_array = pci_alloc_consistent(ioc->pdev,
4023 reply_post_free_array_sz, &reply_post_free_array_dma);
4024 if (!reply_post_free_array) {
4026 "reply_post_free_array: pci_alloc_consistent failed\n",
4031 memset(reply_post_free_array, 0, reply_post_free_array_sz);
4032 for (i = 0; i < ioc->reply_queue_count; i++)
4033 reply_post_free_array[i].RDPQBaseAddress =
4035 (u64)ioc->reply_post[i].reply_post_free_dma);
4036 mpi_request.MsgFlags = MPI2_IOCINIT_MSGFLAG_RDPQ_ARRAY_MODE;
4037 mpi_request.ReplyDescriptorPostQueueAddress =
4038 cpu_to_le64((u64)reply_post_free_array_dma);
4040 mpi_request.ReplyDescriptorPostQueueAddress =
4041 cpu_to_le64((u64)ioc->reply_post[0].reply_post_free_dma);
4044 /* This time stamp specifies number of milliseconds
4045 * since epoch ~ midnight January 1, 1970.
4047 do_gettimeofday(¤t_time);
4048 mpi_request.TimeStamp = cpu_to_le64((u64)current_time.tv_sec * 1000 +
4049 (current_time.tv_usec / 1000));
4051 if (ioc->logging_level & MPT_DEBUG_INIT) {
4055 mfp = (__le32 *)&mpi_request;
4056 pr_info("\toffset:data\n");
4057 for (i = 0; i < sizeof(Mpi2IOCInitRequest_t)/4; i++)
4058 pr_info("\t[0x%02x]:%08x\n", i*4,
4059 le32_to_cpu(mfp[i]));
4062 r = _base_handshake_req_reply_wait(ioc,
4063 sizeof(Mpi2IOCInitRequest_t), (u32 *)&mpi_request,
4064 sizeof(Mpi2IOCInitReply_t), (u16 *)&mpi_reply, 10,
4068 pr_err(MPT3SAS_FMT "%s: handshake failed (r=%d)\n",
4069 ioc->name, __func__, r);
4073 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
4074 if (ioc_status != MPI2_IOCSTATUS_SUCCESS ||
4075 mpi_reply.IOCLogInfo) {
4076 pr_err(MPT3SAS_FMT "%s: failed\n", ioc->name, __func__);
4081 if (reply_post_free_array)
4082 pci_free_consistent(ioc->pdev, reply_post_free_array_sz,
4083 reply_post_free_array,
4084 reply_post_free_array_dma);
4089 * mpt3sas_port_enable_done - command completion routine for port enable
4090 * @ioc: per adapter object
4091 * @smid: system request message index
4092 * @msix_index: MSIX table index supplied by the OS
4093 * @reply: reply message frame(lower 32bit addr)
4095 * Return 1 meaning mf should be freed from _base_interrupt
4096 * 0 means the mf is freed from this function.
4099 mpt3sas_port_enable_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
4102 MPI2DefaultReply_t *mpi_reply;
4105 if (ioc->port_enable_cmds.status == MPT3_CMD_NOT_USED)
4108 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
4112 if (mpi_reply->Function != MPI2_FUNCTION_PORT_ENABLE)
4115 ioc->port_enable_cmds.status &= ~MPT3_CMD_PENDING;
4116 ioc->port_enable_cmds.status |= MPT3_CMD_COMPLETE;
4117 ioc->port_enable_cmds.status |= MPT3_CMD_REPLY_VALID;
4118 memcpy(ioc->port_enable_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
4119 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
4120 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
4121 ioc->port_enable_failed = 1;
4123 if (ioc->is_driver_loading) {
4124 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
4125 mpt3sas_port_enable_complete(ioc);
4128 ioc->start_scan_failed = ioc_status;
4129 ioc->start_scan = 0;
4133 complete(&ioc->port_enable_cmds.done);
4138 * _base_send_port_enable - send port_enable(discovery stuff) to firmware
4139 * @ioc: per adapter object
4140 * @sleep_flag: CAN_SLEEP or NO_SLEEP
4142 * Returns 0 for success, non-zero for failure.
4145 _base_send_port_enable(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
4147 Mpi2PortEnableRequest_t *mpi_request;
4148 Mpi2PortEnableReply_t *mpi_reply;
4149 unsigned long timeleft;
4154 pr_info(MPT3SAS_FMT "sending port enable !!\n", ioc->name);
4156 if (ioc->port_enable_cmds.status & MPT3_CMD_PENDING) {
4157 pr_err(MPT3SAS_FMT "%s: internal command already in use\n",
4158 ioc->name, __func__);
4162 smid = mpt3sas_base_get_smid(ioc, ioc->port_enable_cb_idx);
4164 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
4165 ioc->name, __func__);
4169 ioc->port_enable_cmds.status = MPT3_CMD_PENDING;
4170 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
4171 ioc->port_enable_cmds.smid = smid;
4172 memset(mpi_request, 0, sizeof(Mpi2PortEnableRequest_t));
4173 mpi_request->Function = MPI2_FUNCTION_PORT_ENABLE;
4175 init_completion(&ioc->port_enable_cmds.done);
4176 mpt3sas_base_put_smid_default(ioc, smid);
4177 timeleft = wait_for_completion_timeout(&ioc->port_enable_cmds.done,
4179 if (!(ioc->port_enable_cmds.status & MPT3_CMD_COMPLETE)) {
4180 pr_err(MPT3SAS_FMT "%s: timeout\n",
4181 ioc->name, __func__);
4182 _debug_dump_mf(mpi_request,
4183 sizeof(Mpi2PortEnableRequest_t)/4);
4184 if (ioc->port_enable_cmds.status & MPT3_CMD_RESET)
4191 mpi_reply = ioc->port_enable_cmds.reply;
4192 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
4193 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4194 pr_err(MPT3SAS_FMT "%s: failed with (ioc_status=0x%08x)\n",
4195 ioc->name, __func__, ioc_status);
4201 ioc->port_enable_cmds.status = MPT3_CMD_NOT_USED;
4202 pr_info(MPT3SAS_FMT "port enable: %s\n", ioc->name, ((r == 0) ?
4203 "SUCCESS" : "FAILED"));
4208 * mpt3sas_port_enable - initiate firmware discovery (don't wait for reply)
4209 * @ioc: per adapter object
4211 * Returns 0 for success, non-zero for failure.
4214 mpt3sas_port_enable(struct MPT3SAS_ADAPTER *ioc)
4216 Mpi2PortEnableRequest_t *mpi_request;
4219 pr_info(MPT3SAS_FMT "sending port enable !!\n", ioc->name);
4221 if (ioc->port_enable_cmds.status & MPT3_CMD_PENDING) {
4222 pr_err(MPT3SAS_FMT "%s: internal command already in use\n",
4223 ioc->name, __func__);
4227 smid = mpt3sas_base_get_smid(ioc, ioc->port_enable_cb_idx);
4229 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
4230 ioc->name, __func__);
4234 ioc->port_enable_cmds.status = MPT3_CMD_PENDING;
4235 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
4236 ioc->port_enable_cmds.smid = smid;
4237 memset(mpi_request, 0, sizeof(Mpi2PortEnableRequest_t));
4238 mpi_request->Function = MPI2_FUNCTION_PORT_ENABLE;
4240 mpt3sas_base_put_smid_default(ioc, smid);
4245 * _base_determine_wait_on_discovery - desposition
4246 * @ioc: per adapter object
4248 * Decide whether to wait on discovery to complete. Used to either
4249 * locate boot device, or report volumes ahead of physical devices.
4251 * Returns 1 for wait, 0 for don't wait
4254 _base_determine_wait_on_discovery(struct MPT3SAS_ADAPTER *ioc)
4256 /* We wait for discovery to complete if IR firmware is loaded.
4257 * The sas topology events arrive before PD events, so we need time to
4258 * turn on the bit in ioc->pd_handles to indicate PD
4259 * Also, it maybe required to report Volumes ahead of physical
4260 * devices when MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING is set.
4262 if (ioc->ir_firmware)
4265 /* if no Bios, then we don't need to wait */
4266 if (!ioc->bios_pg3.BiosVersion)
4269 /* Bios is present, then we drop down here.
4271 * If there any entries in the Bios Page 2, then we wait
4272 * for discovery to complete.
4275 /* Current Boot Device */
4276 if ((ioc->bios_pg2.CurrentBootDeviceForm &
4277 MPI2_BIOSPAGE2_FORM_MASK) ==
4278 MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED &&
4279 /* Request Boot Device */
4280 (ioc->bios_pg2.ReqBootDeviceForm &
4281 MPI2_BIOSPAGE2_FORM_MASK) ==
4282 MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED &&
4283 /* Alternate Request Boot Device */
4284 (ioc->bios_pg2.ReqAltBootDeviceForm &
4285 MPI2_BIOSPAGE2_FORM_MASK) ==
4286 MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED)
4293 * _base_unmask_events - turn on notification for this event
4294 * @ioc: per adapter object
4295 * @event: firmware event
4297 * The mask is stored in ioc->event_masks.
4300 _base_unmask_events(struct MPT3SAS_ADAPTER *ioc, u16 event)
4307 desired_event = (1 << (event % 32));
4310 ioc->event_masks[0] &= ~desired_event;
4311 else if (event < 64)
4312 ioc->event_masks[1] &= ~desired_event;
4313 else if (event < 96)
4314 ioc->event_masks[2] &= ~desired_event;
4315 else if (event < 128)
4316 ioc->event_masks[3] &= ~desired_event;
4320 * _base_event_notification - send event notification
4321 * @ioc: per adapter object
4322 * @sleep_flag: CAN_SLEEP or NO_SLEEP
4324 * Returns 0 for success, non-zero for failure.
4327 _base_event_notification(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
4329 Mpi2EventNotificationRequest_t *mpi_request;
4330 unsigned long timeleft;
4335 dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
4338 if (ioc->base_cmds.status & MPT3_CMD_PENDING) {
4339 pr_err(MPT3SAS_FMT "%s: internal command already in use\n",
4340 ioc->name, __func__);
4344 smid = mpt3sas_base_get_smid(ioc, ioc->base_cb_idx);
4346 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
4347 ioc->name, __func__);
4350 ioc->base_cmds.status = MPT3_CMD_PENDING;
4351 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
4352 ioc->base_cmds.smid = smid;
4353 memset(mpi_request, 0, sizeof(Mpi2EventNotificationRequest_t));
4354 mpi_request->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
4355 mpi_request->VF_ID = 0; /* TODO */
4356 mpi_request->VP_ID = 0;
4357 for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++)
4358 mpi_request->EventMasks[i] =
4359 cpu_to_le32(ioc->event_masks[i]);
4360 init_completion(&ioc->base_cmds.done);
4361 mpt3sas_base_put_smid_default(ioc, smid);
4362 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done, 30*HZ);
4363 if (!(ioc->base_cmds.status & MPT3_CMD_COMPLETE)) {
4364 pr_err(MPT3SAS_FMT "%s: timeout\n",
4365 ioc->name, __func__);
4366 _debug_dump_mf(mpi_request,
4367 sizeof(Mpi2EventNotificationRequest_t)/4);
4368 if (ioc->base_cmds.status & MPT3_CMD_RESET)
4373 dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s: complete\n",
4374 ioc->name, __func__));
4375 ioc->base_cmds.status = MPT3_CMD_NOT_USED;
4380 * mpt3sas_base_validate_event_type - validating event types
4381 * @ioc: per adapter object
4382 * @event: firmware event
4384 * This will turn on firmware event notification when application
4385 * ask for that event. We don't mask events that are already enabled.
4388 mpt3sas_base_validate_event_type(struct MPT3SAS_ADAPTER *ioc, u32 *event_type)
4391 u32 event_mask, desired_event;
4392 u8 send_update_to_fw;
4394 for (i = 0, send_update_to_fw = 0; i <
4395 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++) {
4396 event_mask = ~event_type[i];
4398 for (j = 0; j < 32; j++) {
4399 if (!(event_mask & desired_event) &&
4400 (ioc->event_masks[i] & desired_event)) {
4401 ioc->event_masks[i] &= ~desired_event;
4402 send_update_to_fw = 1;
4404 desired_event = (desired_event << 1);
4408 if (!send_update_to_fw)
4411 mutex_lock(&ioc->base_cmds.mutex);
4412 _base_event_notification(ioc, CAN_SLEEP);
4413 mutex_unlock(&ioc->base_cmds.mutex);
4417 * _base_diag_reset - the "big hammer" start of day reset
4418 * @ioc: per adapter object
4419 * @sleep_flag: CAN_SLEEP or NO_SLEEP
4421 * Returns 0 for success, non-zero for failure.
4424 _base_diag_reset(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
4426 u32 host_diagnostic;
4431 pr_info(MPT3SAS_FMT "sending diag reset !!\n", ioc->name);
4433 drsprintk(ioc, pr_info(MPT3SAS_FMT "clear interrupts\n",
4438 /* Write magic sequence to WriteSequence register
4439 * Loop until in diagnostic mode
4441 drsprintk(ioc, pr_info(MPT3SAS_FMT
4442 "write magic sequence\n", ioc->name));
4443 writel(MPI2_WRSEQ_FLUSH_KEY_VALUE, &ioc->chip->WriteSequence);
4444 writel(MPI2_WRSEQ_1ST_KEY_VALUE, &ioc->chip->WriteSequence);
4445 writel(MPI2_WRSEQ_2ND_KEY_VALUE, &ioc->chip->WriteSequence);
4446 writel(MPI2_WRSEQ_3RD_KEY_VALUE, &ioc->chip->WriteSequence);
4447 writel(MPI2_WRSEQ_4TH_KEY_VALUE, &ioc->chip->WriteSequence);
4448 writel(MPI2_WRSEQ_5TH_KEY_VALUE, &ioc->chip->WriteSequence);
4449 writel(MPI2_WRSEQ_6TH_KEY_VALUE, &ioc->chip->WriteSequence);
4452 if (sleep_flag == CAN_SLEEP)
4460 host_diagnostic = readl(&ioc->chip->HostDiagnostic);
4461 drsprintk(ioc, pr_info(MPT3SAS_FMT
4462 "wrote magic sequence: count(%d), host_diagnostic(0x%08x)\n",
4463 ioc->name, count, host_diagnostic));
4465 } while ((host_diagnostic & MPI2_DIAG_DIAG_WRITE_ENABLE) == 0);
4467 hcb_size = readl(&ioc->chip->HCBSize);
4469 drsprintk(ioc, pr_info(MPT3SAS_FMT "diag reset: issued\n",
4471 writel(host_diagnostic | MPI2_DIAG_RESET_ADAPTER,
4472 &ioc->chip->HostDiagnostic);
4474 /*This delay allows the chip PCIe hardware time to finish reset tasks*/
4475 if (sleep_flag == CAN_SLEEP)
4476 msleep(MPI2_HARD_RESET_PCIE_FIRST_READ_DELAY_MICRO_SEC/1000);
4478 mdelay(MPI2_HARD_RESET_PCIE_FIRST_READ_DELAY_MICRO_SEC/1000);
4480 /* Approximately 300 second max wait */
4481 for (count = 0; count < (300000000 /
4482 MPI2_HARD_RESET_PCIE_SECOND_READ_DELAY_MICRO_SEC); count++) {
4484 host_diagnostic = readl(&ioc->chip->HostDiagnostic);
4486 if (host_diagnostic == 0xFFFFFFFF)
4488 if (!(host_diagnostic & MPI2_DIAG_RESET_ADAPTER))
4491 /* Wait to pass the second read delay window */
4492 if (sleep_flag == CAN_SLEEP)
4493 msleep(MPI2_HARD_RESET_PCIE_SECOND_READ_DELAY_MICRO_SEC
4496 mdelay(MPI2_HARD_RESET_PCIE_SECOND_READ_DELAY_MICRO_SEC
4500 if (host_diagnostic & MPI2_DIAG_HCB_MODE) {
4502 drsprintk(ioc, pr_info(MPT3SAS_FMT
4503 "restart the adapter assuming the HCB Address points to good F/W\n",
4505 host_diagnostic &= ~MPI2_DIAG_BOOT_DEVICE_SELECT_MASK;
4506 host_diagnostic |= MPI2_DIAG_BOOT_DEVICE_SELECT_HCDW;
4507 writel(host_diagnostic, &ioc->chip->HostDiagnostic);
4509 drsprintk(ioc, pr_info(MPT3SAS_FMT
4510 "re-enable the HCDW\n", ioc->name));
4511 writel(hcb_size | MPI2_HCB_SIZE_HCB_ENABLE,
4512 &ioc->chip->HCBSize);
4515 drsprintk(ioc, pr_info(MPT3SAS_FMT "restart the adapter\n",
4517 writel(host_diagnostic & ~MPI2_DIAG_HOLD_IOC_RESET,
4518 &ioc->chip->HostDiagnostic);
4520 drsprintk(ioc, pr_info(MPT3SAS_FMT
4521 "disable writes to the diagnostic register\n", ioc->name));
4522 writel(MPI2_WRSEQ_FLUSH_KEY_VALUE, &ioc->chip->WriteSequence);
4524 drsprintk(ioc, pr_info(MPT3SAS_FMT
4525 "Wait for FW to go to the READY state\n", ioc->name));
4526 ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY, 20,
4530 "%s: failed going to ready state (ioc_state=0x%x)\n",
4531 ioc->name, __func__, ioc_state);
4535 pr_info(MPT3SAS_FMT "diag reset: SUCCESS\n", ioc->name);
4539 pr_err(MPT3SAS_FMT "diag reset: FAILED\n", ioc->name);
4544 * _base_make_ioc_ready - put controller in READY state
4545 * @ioc: per adapter object
4546 * @sleep_flag: CAN_SLEEP or NO_SLEEP
4547 * @type: FORCE_BIG_HAMMER or SOFT_RESET
4549 * Returns 0 for success, non-zero for failure.
4552 _base_make_ioc_ready(struct MPT3SAS_ADAPTER *ioc, int sleep_flag,
4553 enum reset_type type)
4559 dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
4562 if (ioc->pci_error_recovery)
4565 ioc_state = mpt3sas_base_get_iocstate(ioc, 0);
4566 dhsprintk(ioc, pr_info(MPT3SAS_FMT "%s: ioc_state(0x%08x)\n",
4567 ioc->name, __func__, ioc_state));
4569 /* if in RESET state, it should move to READY state shortly */
4571 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_RESET) {
4572 while ((ioc_state & MPI2_IOC_STATE_MASK) !=
4573 MPI2_IOC_STATE_READY) {
4574 if (count++ == 10) {
4576 "%s: failed going to ready state (ioc_state=0x%x)\n",
4577 ioc->name, __func__, ioc_state);
4580 if (sleep_flag == CAN_SLEEP)
4584 ioc_state = mpt3sas_base_get_iocstate(ioc, 0);
4588 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_READY)
4591 if (ioc_state & MPI2_DOORBELL_USED) {
4592 dhsprintk(ioc, pr_info(MPT3SAS_FMT
4593 "unexpected doorbell active!\n",
4595 goto issue_diag_reset;
4598 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
4599 mpt3sas_base_fault_info(ioc, ioc_state &
4600 MPI2_DOORBELL_DATA_MASK);
4601 goto issue_diag_reset;
4604 if (type == FORCE_BIG_HAMMER)
4605 goto issue_diag_reset;
4607 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_OPERATIONAL)
4608 if (!(_base_send_ioc_reset(ioc,
4609 MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET, 15, CAN_SLEEP))) {
4614 rc = _base_diag_reset(ioc, CAN_SLEEP);
4619 * _base_make_ioc_operational - put controller in OPERATIONAL state
4620 * @ioc: per adapter object
4621 * @sleep_flag: CAN_SLEEP or NO_SLEEP
4623 * Returns 0 for success, non-zero for failure.
4626 _base_make_ioc_operational(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
4629 unsigned long flags;
4632 struct _tr_list *delayed_tr, *delayed_tr_next;
4633 struct adapter_reply_queue *reply_q;
4634 long reply_post_free;
4635 u32 reply_post_free_sz, index = 0;
4637 dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
4640 /* clean the delayed target reset list */
4641 list_for_each_entry_safe(delayed_tr, delayed_tr_next,
4642 &ioc->delayed_tr_list, list) {
4643 list_del(&delayed_tr->list);
4648 list_for_each_entry_safe(delayed_tr, delayed_tr_next,
4649 &ioc->delayed_tr_volume_list, list) {
4650 list_del(&delayed_tr->list);
4654 /* initialize the scsi lookup free list */
4655 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
4656 INIT_LIST_HEAD(&ioc->free_list);
4658 for (i = 0; i < ioc->scsiio_depth; i++, smid++) {
4659 INIT_LIST_HEAD(&ioc->scsi_lookup[i].chain_list);
4660 ioc->scsi_lookup[i].cb_idx = 0xFF;
4661 ioc->scsi_lookup[i].smid = smid;
4662 ioc->scsi_lookup[i].scmd = NULL;
4663 list_add_tail(&ioc->scsi_lookup[i].tracker_list,
4667 /* hi-priority queue */
4668 INIT_LIST_HEAD(&ioc->hpr_free_list);
4669 smid = ioc->hi_priority_smid;
4670 for (i = 0; i < ioc->hi_priority_depth; i++, smid++) {
4671 ioc->hpr_lookup[i].cb_idx = 0xFF;
4672 ioc->hpr_lookup[i].smid = smid;
4673 list_add_tail(&ioc->hpr_lookup[i].tracker_list,
4674 &ioc->hpr_free_list);
4677 /* internal queue */
4678 INIT_LIST_HEAD(&ioc->internal_free_list);
4679 smid = ioc->internal_smid;
4680 for (i = 0; i < ioc->internal_depth; i++, smid++) {
4681 ioc->internal_lookup[i].cb_idx = 0xFF;
4682 ioc->internal_lookup[i].smid = smid;
4683 list_add_tail(&ioc->internal_lookup[i].tracker_list,
4684 &ioc->internal_free_list);
4688 INIT_LIST_HEAD(&ioc->free_chain_list);
4689 for (i = 0; i < ioc->chain_depth; i++)
4690 list_add_tail(&ioc->chain_lookup[i].tracker_list,
4691 &ioc->free_chain_list);
4693 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
4695 /* initialize Reply Free Queue */
4696 for (i = 0, reply_address = (u32)ioc->reply_dma ;
4697 i < ioc->reply_free_queue_depth ; i++, reply_address +=
4699 ioc->reply_free[i] = cpu_to_le32(reply_address);
4701 /* initialize reply queues */
4702 if (ioc->is_driver_loading)
4703 _base_assign_reply_queues(ioc);
4705 /* initialize Reply Post Free Queue */
4706 reply_post_free_sz = ioc->reply_post_queue_depth *
4707 sizeof(Mpi2DefaultReplyDescriptor_t);
4708 reply_post_free = (long)ioc->reply_post[index].reply_post_free;
4709 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) {
4710 reply_q->reply_post_host_index = 0;
4711 reply_q->reply_post_free = (Mpi2ReplyDescriptorsUnion_t *)
4713 for (i = 0; i < ioc->reply_post_queue_depth; i++)
4714 reply_q->reply_post_free[i].Words =
4715 cpu_to_le64(ULLONG_MAX);
4716 if (!_base_is_controller_msix_enabled(ioc))
4717 goto skip_init_reply_post_free_queue;
4719 * If RDPQ is enabled, switch to the next allocation.
4720 * Otherwise advance within the contiguous region.
4722 if (ioc->rdpq_array_enable)
4723 reply_post_free = (long)
4724 ioc->reply_post[++index].reply_post_free;
4726 reply_post_free += reply_post_free_sz;
4728 skip_init_reply_post_free_queue:
4730 r = _base_send_ioc_init(ioc, sleep_flag);
4734 /* initialize reply free host index */
4735 ioc->reply_free_host_index = ioc->reply_free_queue_depth - 1;
4736 writel(ioc->reply_free_host_index, &ioc->chip->ReplyFreeHostIndex);
4738 /* initialize reply post host index */
4739 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) {
4740 if (ioc->msix96_vector)
4741 writel((reply_q->msix_index & 7)<<
4742 MPI2_RPHI_MSIX_INDEX_SHIFT,
4743 ioc->replyPostRegisterIndex[reply_q->msix_index/8]);
4745 writel(reply_q->msix_index <<
4746 MPI2_RPHI_MSIX_INDEX_SHIFT,
4747 &ioc->chip->ReplyPostHostIndex);
4749 if (!_base_is_controller_msix_enabled(ioc))
4750 goto skip_init_reply_post_host_index;
4753 skip_init_reply_post_host_index:
4755 _base_unmask_interrupts(ioc);
4756 r = _base_event_notification(ioc, sleep_flag);
4760 if (sleep_flag == CAN_SLEEP)
4761 _base_static_config_pages(ioc);
4764 if (ioc->is_driver_loading) {
4765 ioc->wait_for_discovery_to_complete =
4766 _base_determine_wait_on_discovery(ioc);
4768 return r; /* scan_start and scan_finished support */
4771 r = _base_send_port_enable(ioc, sleep_flag);
4779 * mpt3sas_base_free_resources - free resources controller resources
4780 * @ioc: per adapter object
4785 mpt3sas_base_free_resources(struct MPT3SAS_ADAPTER *ioc)
4787 dexitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
4790 if (ioc->chip_phys && ioc->chip) {
4791 _base_mask_interrupts(ioc);
4792 ioc->shost_recovery = 1;
4793 _base_make_ioc_ready(ioc, CAN_SLEEP, SOFT_RESET);
4794 ioc->shost_recovery = 0;
4797 mpt3sas_base_unmap_resources(ioc);
4802 * mpt3sas_base_attach - attach controller instance
4803 * @ioc: per adapter object
4805 * Returns 0 for success, non-zero for failure.
4808 mpt3sas_base_attach(struct MPT3SAS_ADAPTER *ioc)
4811 int cpu_id, last_cpu_id = 0;
4814 dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
4817 /* setup cpu_msix_table */
4818 ioc->cpu_count = num_online_cpus();
4819 for_each_online_cpu(cpu_id)
4820 last_cpu_id = cpu_id;
4821 ioc->cpu_msix_table_sz = last_cpu_id + 1;
4822 ioc->cpu_msix_table = kzalloc(ioc->cpu_msix_table_sz, GFP_KERNEL);
4823 ioc->reply_queue_count = 1;
4824 if (!ioc->cpu_msix_table) {
4825 dfailprintk(ioc, pr_info(MPT3SAS_FMT
4826 "allocation for cpu_msix_table failed!!!\n",
4829 goto out_free_resources;
4832 /* Check whether the controller revision is C0 or above.
4833 * only C0 and above revision controllers support 96 MSI-X vectors.
4835 revision = ioc->pdev->revision;
4837 if ((ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3004 ||
4838 ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3008 ||
4839 ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3108_1 ||
4840 ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3108_2 ||
4841 ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3108_5 ||
4842 ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3108_6) &&
4844 ioc->msix96_vector = 1;
4846 ioc->rdpq_array_enable_assigned = 0;
4848 r = mpt3sas_base_map_resources(ioc);
4850 goto out_free_resources;
4853 pci_set_drvdata(ioc->pdev, ioc->shost);
4854 r = _base_get_ioc_facts(ioc, CAN_SLEEP);
4856 goto out_free_resources;
4860 * SCSI_IO, SMP_PASSTHRU, SATA_PASSTHRU, Target Assist, and
4861 * Target Status - all require the IEEE formated scatter gather
4865 ioc->build_sg_scmd = &_base_build_sg_scmd_ieee;
4866 ioc->build_sg = &_base_build_sg_ieee;
4867 ioc->build_zero_len_sge = &_base_build_zero_len_sge_ieee;
4868 ioc->sge_size_ieee = sizeof(Mpi2IeeeSgeSimple64_t);
4871 * These function pointers for other requests that don't
4872 * the require IEEE scatter gather elements.
4874 * For example Configuration Pages and SAS IOUNIT Control don't.
4876 ioc->build_sg_mpi = &_base_build_sg;
4877 ioc->build_zero_len_sge_mpi = &_base_build_zero_len_sge;
4879 r = _base_make_ioc_ready(ioc, CAN_SLEEP, SOFT_RESET);
4881 goto out_free_resources;
4883 ioc->pfacts = kcalloc(ioc->facts.NumberOfPorts,
4884 sizeof(struct mpt3sas_port_facts), GFP_KERNEL);
4887 goto out_free_resources;
4890 for (i = 0 ; i < ioc->facts.NumberOfPorts; i++) {
4891 r = _base_get_port_facts(ioc, i, CAN_SLEEP);
4893 goto out_free_resources;
4896 r = _base_allocate_memory_pools(ioc, CAN_SLEEP);
4898 goto out_free_resources;
4900 init_waitqueue_head(&ioc->reset_wq);
4902 /* allocate memory pd handle bitmask list */
4903 ioc->pd_handles_sz = (ioc->facts.MaxDevHandle / 8);
4904 if (ioc->facts.MaxDevHandle % 8)
4905 ioc->pd_handles_sz++;
4906 ioc->pd_handles = kzalloc(ioc->pd_handles_sz,
4908 if (!ioc->pd_handles) {
4910 goto out_free_resources;
4912 ioc->blocking_handles = kzalloc(ioc->pd_handles_sz,
4914 if (!ioc->blocking_handles) {
4916 goto out_free_resources;
4919 ioc->fwfault_debug = mpt3sas_fwfault_debug;
4921 /* base internal command bits */
4922 mutex_init(&ioc->base_cmds.mutex);
4923 ioc->base_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
4924 ioc->base_cmds.status = MPT3_CMD_NOT_USED;
4926 /* port_enable command bits */
4927 ioc->port_enable_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
4928 ioc->port_enable_cmds.status = MPT3_CMD_NOT_USED;
4930 /* transport internal command bits */
4931 ioc->transport_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
4932 ioc->transport_cmds.status = MPT3_CMD_NOT_USED;
4933 mutex_init(&ioc->transport_cmds.mutex);
4935 /* scsih internal command bits */
4936 ioc->scsih_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
4937 ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
4938 mutex_init(&ioc->scsih_cmds.mutex);
4940 /* task management internal command bits */
4941 ioc->tm_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
4942 ioc->tm_cmds.status = MPT3_CMD_NOT_USED;
4943 mutex_init(&ioc->tm_cmds.mutex);
4945 /* config page internal command bits */
4946 ioc->config_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
4947 ioc->config_cmds.status = MPT3_CMD_NOT_USED;
4948 mutex_init(&ioc->config_cmds.mutex);
4950 /* ctl module internal command bits */
4951 ioc->ctl_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
4952 ioc->ctl_cmds.sense = kzalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL);
4953 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
4954 mutex_init(&ioc->ctl_cmds.mutex);
4956 if (!ioc->base_cmds.reply || !ioc->transport_cmds.reply ||
4957 !ioc->scsih_cmds.reply || !ioc->tm_cmds.reply ||
4958 !ioc->config_cmds.reply || !ioc->ctl_cmds.reply ||
4959 !ioc->ctl_cmds.sense) {
4961 goto out_free_resources;
4964 for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++)
4965 ioc->event_masks[i] = -1;
4967 /* here we enable the events we care about */
4968 _base_unmask_events(ioc, MPI2_EVENT_SAS_DISCOVERY);
4969 _base_unmask_events(ioc, MPI2_EVENT_SAS_BROADCAST_PRIMITIVE);
4970 _base_unmask_events(ioc, MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST);
4971 _base_unmask_events(ioc, MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
4972 _base_unmask_events(ioc, MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE);
4973 _base_unmask_events(ioc, MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST);
4974 _base_unmask_events(ioc, MPI2_EVENT_IR_VOLUME);
4975 _base_unmask_events(ioc, MPI2_EVENT_IR_PHYSICAL_DISK);
4976 _base_unmask_events(ioc, MPI2_EVENT_IR_OPERATION_STATUS);
4977 _base_unmask_events(ioc, MPI2_EVENT_LOG_ENTRY_ADDED);
4978 _base_unmask_events(ioc, MPI2_EVENT_TEMP_THRESHOLD);
4980 r = _base_make_ioc_operational(ioc, CAN_SLEEP);
4982 goto out_free_resources;
4988 ioc->remove_host = 1;
4990 mpt3sas_base_free_resources(ioc);
4991 _base_release_memory_pools(ioc);
4992 pci_set_drvdata(ioc->pdev, NULL);
4993 kfree(ioc->cpu_msix_table);
4994 kfree(ioc->pd_handles);
4995 kfree(ioc->blocking_handles);
4996 kfree(ioc->tm_cmds.reply);
4997 kfree(ioc->transport_cmds.reply);
4998 kfree(ioc->scsih_cmds.reply);
4999 kfree(ioc->config_cmds.reply);
5000 kfree(ioc->base_cmds.reply);
5001 kfree(ioc->port_enable_cmds.reply);
5002 kfree(ioc->ctl_cmds.reply);
5003 kfree(ioc->ctl_cmds.sense);
5005 ioc->ctl_cmds.reply = NULL;
5006 ioc->base_cmds.reply = NULL;
5007 ioc->tm_cmds.reply = NULL;
5008 ioc->scsih_cmds.reply = NULL;
5009 ioc->transport_cmds.reply = NULL;
5010 ioc->config_cmds.reply = NULL;
5017 * mpt3sas_base_detach - remove controller instance
5018 * @ioc: per adapter object
5023 mpt3sas_base_detach(struct MPT3SAS_ADAPTER *ioc)
5025 dexitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
5028 mpt3sas_base_stop_watchdog(ioc);
5029 mpt3sas_base_free_resources(ioc);
5030 _base_release_memory_pools(ioc);
5031 pci_set_drvdata(ioc->pdev, NULL);
5032 kfree(ioc->cpu_msix_table);
5033 kfree(ioc->pd_handles);
5034 kfree(ioc->blocking_handles);
5036 kfree(ioc->ctl_cmds.reply);
5037 kfree(ioc->ctl_cmds.sense);
5038 kfree(ioc->base_cmds.reply);
5039 kfree(ioc->port_enable_cmds.reply);
5040 kfree(ioc->tm_cmds.reply);
5041 kfree(ioc->transport_cmds.reply);
5042 kfree(ioc->scsih_cmds.reply);
5043 kfree(ioc->config_cmds.reply);
5047 * _base_reset_handler - reset callback handler (for base)
5048 * @ioc: per adapter object
5049 * @reset_phase: phase
5051 * The handler for doing any required cleanup or initialization.
5053 * The reset phase can be MPT3_IOC_PRE_RESET, MPT3_IOC_AFTER_RESET,
5054 * MPT3_IOC_DONE_RESET
5059 _base_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase)
5061 mpt3sas_scsih_reset_handler(ioc, reset_phase);
5062 mpt3sas_ctl_reset_handler(ioc, reset_phase);
5063 switch (reset_phase) {
5064 case MPT3_IOC_PRE_RESET:
5065 dtmprintk(ioc, pr_info(MPT3SAS_FMT
5066 "%s: MPT3_IOC_PRE_RESET\n", ioc->name, __func__));
5068 case MPT3_IOC_AFTER_RESET:
5069 dtmprintk(ioc, pr_info(MPT3SAS_FMT
5070 "%s: MPT3_IOC_AFTER_RESET\n", ioc->name, __func__));
5071 if (ioc->transport_cmds.status & MPT3_CMD_PENDING) {
5072 ioc->transport_cmds.status |= MPT3_CMD_RESET;
5073 mpt3sas_base_free_smid(ioc, ioc->transport_cmds.smid);
5074 complete(&ioc->transport_cmds.done);
5076 if (ioc->base_cmds.status & MPT3_CMD_PENDING) {
5077 ioc->base_cmds.status |= MPT3_CMD_RESET;
5078 mpt3sas_base_free_smid(ioc, ioc->base_cmds.smid);
5079 complete(&ioc->base_cmds.done);
5081 if (ioc->port_enable_cmds.status & MPT3_CMD_PENDING) {
5082 ioc->port_enable_failed = 1;
5083 ioc->port_enable_cmds.status |= MPT3_CMD_RESET;
5084 mpt3sas_base_free_smid(ioc, ioc->port_enable_cmds.smid);
5085 if (ioc->is_driver_loading) {
5086 ioc->start_scan_failed =
5087 MPI2_IOCSTATUS_INTERNAL_ERROR;
5088 ioc->start_scan = 0;
5089 ioc->port_enable_cmds.status =
5092 complete(&ioc->port_enable_cmds.done);
5094 if (ioc->config_cmds.status & MPT3_CMD_PENDING) {
5095 ioc->config_cmds.status |= MPT3_CMD_RESET;
5096 mpt3sas_base_free_smid(ioc, ioc->config_cmds.smid);
5097 ioc->config_cmds.smid = USHRT_MAX;
5098 complete(&ioc->config_cmds.done);
5101 case MPT3_IOC_DONE_RESET:
5102 dtmprintk(ioc, pr_info(MPT3SAS_FMT
5103 "%s: MPT3_IOC_DONE_RESET\n", ioc->name, __func__));
5109 * _wait_for_commands_to_complete - reset controller
5110 * @ioc: Pointer to MPT_ADAPTER structure
5111 * @sleep_flag: CAN_SLEEP or NO_SLEEP
5113 * This function waiting(3s) for all pending commands to complete
5114 * prior to putting controller in reset.
5117 _wait_for_commands_to_complete(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
5120 unsigned long flags;
5123 ioc->pending_io_count = 0;
5124 if (sleep_flag != CAN_SLEEP)
5127 ioc_state = mpt3sas_base_get_iocstate(ioc, 0);
5128 if ((ioc_state & MPI2_IOC_STATE_MASK) != MPI2_IOC_STATE_OPERATIONAL)
5131 /* pending command count */
5132 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5133 for (i = 0; i < ioc->scsiio_depth; i++)
5134 if (ioc->scsi_lookup[i].cb_idx != 0xFF)
5135 ioc->pending_io_count++;
5136 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
5138 if (!ioc->pending_io_count)
5141 /* wait for pending commands to complete */
5142 wait_event_timeout(ioc->reset_wq, ioc->pending_io_count == 0, 10 * HZ);
5146 * mpt3sas_base_hard_reset_handler - reset controller
5147 * @ioc: Pointer to MPT_ADAPTER structure
5148 * @sleep_flag: CAN_SLEEP or NO_SLEEP
5149 * @type: FORCE_BIG_HAMMER or SOFT_RESET
5151 * Returns 0 for success, non-zero for failure.
5154 mpt3sas_base_hard_reset_handler(struct MPT3SAS_ADAPTER *ioc, int sleep_flag,
5155 enum reset_type type)
5158 unsigned long flags;
5160 u8 is_fault = 0, is_trigger = 0;
5162 dtmprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
5165 if (ioc->pci_error_recovery) {
5166 pr_err(MPT3SAS_FMT "%s: pci error recovery reset\n",
5167 ioc->name, __func__);
5172 if (mpt3sas_fwfault_debug)
5173 mpt3sas_halt_firmware(ioc);
5175 /* TODO - What we really should be doing is pulling
5176 * out all the code associated with NO_SLEEP; its never used.
5177 * That is legacy code from mpt fusion driver, ported over.
5178 * I will leave this BUG_ON here for now till its been resolved.
5180 BUG_ON(sleep_flag == NO_SLEEP);
5182 /* wait for an active reset in progress to complete */
5183 if (!mutex_trylock(&ioc->reset_in_progress_mutex)) {
5186 } while (ioc->shost_recovery == 1);
5187 dtmprintk(ioc, pr_info(MPT3SAS_FMT "%s: exit\n", ioc->name,
5189 return ioc->ioc_reset_in_progress_status;
5192 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
5193 ioc->shost_recovery = 1;
5194 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
5196 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
5197 MPT3_DIAG_BUFFER_IS_REGISTERED) &&
5198 (!(ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
5199 MPT3_DIAG_BUFFER_IS_RELEASED))) {
5201 ioc_state = mpt3sas_base_get_iocstate(ioc, 0);
5202 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT)
5205 _base_reset_handler(ioc, MPT3_IOC_PRE_RESET);
5206 _wait_for_commands_to_complete(ioc, sleep_flag);
5207 _base_mask_interrupts(ioc);
5208 r = _base_make_ioc_ready(ioc, sleep_flag, type);
5211 _base_reset_handler(ioc, MPT3_IOC_AFTER_RESET);
5213 /* If this hard reset is called while port enable is active, then
5214 * there is no reason to call make_ioc_operational
5216 if (ioc->is_driver_loading && ioc->port_enable_failed) {
5217 ioc->remove_host = 1;
5221 r = _base_get_ioc_facts(ioc, CAN_SLEEP);
5225 if (ioc->rdpq_array_enable && !ioc->rdpq_array_capable)
5226 panic("%s: Issue occurred with flashing controller firmware."
5227 "Please reboot the system and ensure that the correct"
5228 " firmware version is running\n", ioc->name);
5230 r = _base_make_ioc_operational(ioc, sleep_flag);
5232 _base_reset_handler(ioc, MPT3_IOC_DONE_RESET);
5235 dtmprintk(ioc, pr_info(MPT3SAS_FMT "%s: %s\n",
5236 ioc->name, __func__, ((r == 0) ? "SUCCESS" : "FAILED")));
5238 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
5239 ioc->ioc_reset_in_progress_status = r;
5240 ioc->shost_recovery = 0;
5241 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
5242 ioc->ioc_reset_count++;
5243 mutex_unlock(&ioc->reset_in_progress_mutex);
5246 if ((r == 0) && is_trigger) {
5248 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_FW_FAULT);
5250 mpt3sas_trigger_master(ioc,
5251 MASTER_TRIGGER_ADAPTER_RESET);
5253 dtmprintk(ioc, pr_info(MPT3SAS_FMT "%s: exit\n", ioc->name,