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/mpt2sas/mpt2_base.c
6 * Copyright (C) 2007-2010 LSI Corporation
7 * (mailto:DL-MPTFusionLinux@lsi.com)
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version 2
12 * of the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
20 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
21 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
22 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
23 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
24 * solely responsible for determining the appropriateness of using and
25 * distributing the Program and assumes all risks associated with its
26 * exercise of rights under this Agreement, including but not limited to
27 * the risks and costs of program errors, damage to or loss of data,
28 * programs or equipment, and unavailability or interruption of operations.
30 * DISCLAIMER OF LIABILITY
31 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
32 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
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36 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
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39 * You should have received a copy of the GNU General Public License
40 * along with this program; if not, write to the Free Software
41 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
45 #include <linux/version.h>
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>
58 #include <linux/sort.h>
60 #include <linux/time.h>
61 #include <linux/aer.h>
63 #include "mpt2sas_base.h"
65 static MPT_CALLBACK mpt_callbacks[MPT_MAX_CALLBACKS];
67 #define FAULT_POLLING_INTERVAL 1000 /* in milliseconds */
69 static int max_queue_depth = -1;
70 module_param(max_queue_depth, int, 0);
71 MODULE_PARM_DESC(max_queue_depth, " max controller queue depth ");
73 static int max_sgl_entries = -1;
74 module_param(max_sgl_entries, int, 0);
75 MODULE_PARM_DESC(max_sgl_entries, " max sg entries ");
77 static int msix_disable = -1;
78 module_param(msix_disable, int, 0);
79 MODULE_PARM_DESC(msix_disable, " disable msix routed interrupts (default=0)");
81 static int missing_delay[2] = {-1, -1};
82 module_param_array(missing_delay, int, NULL, 0);
83 MODULE_PARM_DESC(missing_delay, " device missing delay , io missing delay");
85 /* diag_buffer_enable is bitwise
87 * bit 1 set = SNAPSHOT
88 * bit 2 set = EXTENDED
90 * Either bit can be set, or both
92 static int diag_buffer_enable;
93 module_param(diag_buffer_enable, int, 0);
94 MODULE_PARM_DESC(diag_buffer_enable, " post diag buffers "
95 "(TRACE=1/SNAPSHOT=2/EXTENDED=4/default=0)");
97 int mpt2sas_fwfault_debug;
98 MODULE_PARM_DESC(mpt2sas_fwfault_debug, " enable detection of firmware fault "
99 "and halt firmware - (default=0)");
101 static int disable_discovery = -1;
102 module_param(disable_discovery, int, 0);
103 MODULE_PARM_DESC(disable_discovery, " disable discovery ");
106 * _scsih_set_fwfault_debug - global setting of ioc->fwfault_debug.
110 _scsih_set_fwfault_debug(const char *val, struct kernel_param *kp)
112 int ret = param_set_int(val, kp);
113 struct MPT2SAS_ADAPTER *ioc;
118 printk(KERN_INFO "setting fwfault_debug(%d)\n", mpt2sas_fwfault_debug);
119 list_for_each_entry(ioc, &mpt2sas_ioc_list, list)
120 ioc->fwfault_debug = mpt2sas_fwfault_debug;
123 module_param_call(mpt2sas_fwfault_debug, _scsih_set_fwfault_debug,
124 param_get_int, &mpt2sas_fwfault_debug, 0644);
127 * _base_fault_reset_work - workq handling ioc fault conditions
128 * @work: input argument, used to derive ioc
134 _base_fault_reset_work(struct work_struct *work)
136 struct MPT2SAS_ADAPTER *ioc =
137 container_of(work, struct MPT2SAS_ADAPTER, fault_reset_work.work);
142 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
143 if (ioc->shost_recovery)
145 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
147 doorbell = mpt2sas_base_get_iocstate(ioc, 0);
148 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
149 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
151 printk(MPT2SAS_WARN_FMT "%s: hard reset: %s\n", ioc->name,
152 __func__, (rc == 0) ? "success" : "failed");
153 doorbell = mpt2sas_base_get_iocstate(ioc, 0);
154 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT)
155 mpt2sas_base_fault_info(ioc, doorbell &
156 MPI2_DOORBELL_DATA_MASK);
159 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
161 if (ioc->fault_reset_work_q)
162 queue_delayed_work(ioc->fault_reset_work_q,
163 &ioc->fault_reset_work,
164 msecs_to_jiffies(FAULT_POLLING_INTERVAL));
165 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
169 * mpt2sas_base_start_watchdog - start the fault_reset_work_q
170 * @ioc: per adapter object
176 mpt2sas_base_start_watchdog(struct MPT2SAS_ADAPTER *ioc)
180 if (ioc->fault_reset_work_q)
183 /* initialize fault polling */
184 INIT_DELAYED_WORK(&ioc->fault_reset_work, _base_fault_reset_work);
185 snprintf(ioc->fault_reset_work_q_name,
186 sizeof(ioc->fault_reset_work_q_name), "poll_%d_status", ioc->id);
187 ioc->fault_reset_work_q =
188 create_singlethread_workqueue(ioc->fault_reset_work_q_name);
189 if (!ioc->fault_reset_work_q) {
190 printk(MPT2SAS_ERR_FMT "%s: failed (line=%d)\n",
191 ioc->name, __func__, __LINE__);
194 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
195 if (ioc->fault_reset_work_q)
196 queue_delayed_work(ioc->fault_reset_work_q,
197 &ioc->fault_reset_work,
198 msecs_to_jiffies(FAULT_POLLING_INTERVAL));
199 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
203 * mpt2sas_base_stop_watchdog - stop the fault_reset_work_q
204 * @ioc: per adapter object
210 mpt2sas_base_stop_watchdog(struct MPT2SAS_ADAPTER *ioc)
213 struct workqueue_struct *wq;
215 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
216 wq = ioc->fault_reset_work_q;
217 ioc->fault_reset_work_q = NULL;
218 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
220 if (!cancel_delayed_work(&ioc->fault_reset_work))
222 destroy_workqueue(wq);
227 * mpt2sas_base_fault_info - verbose translation of firmware FAULT code
228 * @ioc: per adapter object
229 * @fault_code: fault code
234 mpt2sas_base_fault_info(struct MPT2SAS_ADAPTER *ioc , u16 fault_code)
236 printk(MPT2SAS_ERR_FMT "fault_state(0x%04x)!\n",
237 ioc->name, fault_code);
241 * mpt2sas_halt_firmware - halt's mpt controller firmware
242 * @ioc: per adapter object
244 * For debugging timeout related issues. Writing 0xCOFFEE00
245 * to the doorbell register will halt controller firmware. With
246 * the purpose to stop both driver and firmware, the enduser can
247 * obtain a ring buffer from controller UART.
250 mpt2sas_halt_firmware(struct MPT2SAS_ADAPTER *ioc)
254 if (!ioc->fwfault_debug)
259 doorbell = readl(&ioc->chip->Doorbell);
260 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT)
261 mpt2sas_base_fault_info(ioc , doorbell);
263 writel(0xC0FFEE00, &ioc->chip->Doorbell);
264 printk(MPT2SAS_ERR_FMT "Firmware is halted due to command "
265 "timeout\n", ioc->name);
268 panic("panic in %s\n", __func__);
271 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
273 * _base_sas_ioc_info - verbose translation of the ioc status
274 * @ioc: per adapter object
275 * @mpi_reply: reply mf payload returned from firmware
276 * @request_hdr: request mf
281 _base_sas_ioc_info(struct MPT2SAS_ADAPTER *ioc, MPI2DefaultReply_t *mpi_reply,
282 MPI2RequestHeader_t *request_hdr)
284 u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
288 char *func_str = NULL;
290 /* SCSI_IO, RAID_PASS are handled from _scsih_scsi_ioc_info */
291 if (request_hdr->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
292 request_hdr->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
293 request_hdr->Function == MPI2_FUNCTION_EVENT_NOTIFICATION)
296 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
299 switch (ioc_status) {
301 /****************************************************************************
302 * Common IOCStatus values for all replies
303 ****************************************************************************/
305 case MPI2_IOCSTATUS_INVALID_FUNCTION:
306 desc = "invalid function";
308 case MPI2_IOCSTATUS_BUSY:
311 case MPI2_IOCSTATUS_INVALID_SGL:
312 desc = "invalid sgl";
314 case MPI2_IOCSTATUS_INTERNAL_ERROR:
315 desc = "internal error";
317 case MPI2_IOCSTATUS_INVALID_VPID:
318 desc = "invalid vpid";
320 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
321 desc = "insufficient resources";
323 case MPI2_IOCSTATUS_INVALID_FIELD:
324 desc = "invalid field";
326 case MPI2_IOCSTATUS_INVALID_STATE:
327 desc = "invalid state";
329 case MPI2_IOCSTATUS_OP_STATE_NOT_SUPPORTED:
330 desc = "op state not supported";
333 /****************************************************************************
334 * Config IOCStatus values
335 ****************************************************************************/
337 case MPI2_IOCSTATUS_CONFIG_INVALID_ACTION:
338 desc = "config invalid action";
340 case MPI2_IOCSTATUS_CONFIG_INVALID_TYPE:
341 desc = "config invalid type";
343 case MPI2_IOCSTATUS_CONFIG_INVALID_PAGE:
344 desc = "config invalid page";
346 case MPI2_IOCSTATUS_CONFIG_INVALID_DATA:
347 desc = "config invalid data";
349 case MPI2_IOCSTATUS_CONFIG_NO_DEFAULTS:
350 desc = "config no defaults";
352 case MPI2_IOCSTATUS_CONFIG_CANT_COMMIT:
353 desc = "config cant commit";
356 /****************************************************************************
358 ****************************************************************************/
360 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
361 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
362 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
363 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
364 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
365 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
366 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
367 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
368 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
369 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
370 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
371 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
374 /****************************************************************************
375 * For use by SCSI Initiator and SCSI Target end-to-end data protection
376 ****************************************************************************/
378 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
379 desc = "eedp guard error";
381 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
382 desc = "eedp ref tag error";
384 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
385 desc = "eedp app tag error";
388 /****************************************************************************
390 ****************************************************************************/
392 case MPI2_IOCSTATUS_TARGET_INVALID_IO_INDEX:
393 desc = "target invalid io index";
395 case MPI2_IOCSTATUS_TARGET_ABORTED:
396 desc = "target aborted";
398 case MPI2_IOCSTATUS_TARGET_NO_CONN_RETRYABLE:
399 desc = "target no conn retryable";
401 case MPI2_IOCSTATUS_TARGET_NO_CONNECTION:
402 desc = "target no connection";
404 case MPI2_IOCSTATUS_TARGET_XFER_COUNT_MISMATCH:
405 desc = "target xfer count mismatch";
407 case MPI2_IOCSTATUS_TARGET_DATA_OFFSET_ERROR:
408 desc = "target data offset error";
410 case MPI2_IOCSTATUS_TARGET_TOO_MUCH_WRITE_DATA:
411 desc = "target too much write data";
413 case MPI2_IOCSTATUS_TARGET_IU_TOO_SHORT:
414 desc = "target iu too short";
416 case MPI2_IOCSTATUS_TARGET_ACK_NAK_TIMEOUT:
417 desc = "target ack nak timeout";
419 case MPI2_IOCSTATUS_TARGET_NAK_RECEIVED:
420 desc = "target nak received";
423 /****************************************************************************
424 * Serial Attached SCSI values
425 ****************************************************************************/
427 case MPI2_IOCSTATUS_SAS_SMP_REQUEST_FAILED:
428 desc = "smp request failed";
430 case MPI2_IOCSTATUS_SAS_SMP_DATA_OVERRUN:
431 desc = "smp data overrun";
434 /****************************************************************************
435 * Diagnostic Buffer Post / Diagnostic Release values
436 ****************************************************************************/
438 case MPI2_IOCSTATUS_DIAGNOSTIC_RELEASED:
439 desc = "diagnostic released";
448 switch (request_hdr->Function) {
449 case MPI2_FUNCTION_CONFIG:
450 frame_sz = sizeof(Mpi2ConfigRequest_t) + ioc->sge_size;
451 func_str = "config_page";
453 case MPI2_FUNCTION_SCSI_TASK_MGMT:
454 frame_sz = sizeof(Mpi2SCSITaskManagementRequest_t);
455 func_str = "task_mgmt";
457 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
458 frame_sz = sizeof(Mpi2SasIoUnitControlRequest_t);
459 func_str = "sas_iounit_ctl";
461 case MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR:
462 frame_sz = sizeof(Mpi2SepRequest_t);
463 func_str = "enclosure";
465 case MPI2_FUNCTION_IOC_INIT:
466 frame_sz = sizeof(Mpi2IOCInitRequest_t);
467 func_str = "ioc_init";
469 case MPI2_FUNCTION_PORT_ENABLE:
470 frame_sz = sizeof(Mpi2PortEnableRequest_t);
471 func_str = "port_enable";
473 case MPI2_FUNCTION_SMP_PASSTHROUGH:
474 frame_sz = sizeof(Mpi2SmpPassthroughRequest_t) + ioc->sge_size;
475 func_str = "smp_passthru";
479 func_str = "unknown";
483 printk(MPT2SAS_WARN_FMT "ioc_status: %s(0x%04x), request(0x%p),"
484 " (%s)\n", ioc->name, desc, ioc_status, request_hdr, func_str);
486 _debug_dump_mf(request_hdr, frame_sz/4);
490 * _base_display_event_data - verbose translation of firmware asyn events
491 * @ioc: per adapter object
492 * @mpi_reply: reply mf payload returned from firmware
497 _base_display_event_data(struct MPT2SAS_ADAPTER *ioc,
498 Mpi2EventNotificationReply_t *mpi_reply)
503 if (!(ioc->logging_level & MPT_DEBUG_EVENTS))
506 event = le16_to_cpu(mpi_reply->Event);
509 case MPI2_EVENT_LOG_DATA:
512 case MPI2_EVENT_STATE_CHANGE:
513 desc = "Status Change";
515 case MPI2_EVENT_HARD_RESET_RECEIVED:
516 desc = "Hard Reset Received";
518 case MPI2_EVENT_EVENT_CHANGE:
519 desc = "Event Change";
521 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
522 desc = "Device Status Change";
524 case MPI2_EVENT_IR_OPERATION_STATUS:
525 desc = "IR Operation Status";
527 case MPI2_EVENT_SAS_DISCOVERY:
529 Mpi2EventDataSasDiscovery_t *event_data =
530 (Mpi2EventDataSasDiscovery_t *)mpi_reply->EventData;
531 printk(MPT2SAS_INFO_FMT "Discovery: (%s)", ioc->name,
532 (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
534 if (event_data->DiscoveryStatus)
535 printk("discovery_status(0x%08x)",
536 le32_to_cpu(event_data->DiscoveryStatus));
540 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
541 desc = "SAS Broadcast Primitive";
543 case MPI2_EVENT_SAS_INIT_DEVICE_STATUS_CHANGE:
544 desc = "SAS Init Device Status Change";
546 case MPI2_EVENT_SAS_INIT_TABLE_OVERFLOW:
547 desc = "SAS Init Table Overflow";
549 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
550 desc = "SAS Topology Change List";
552 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
553 desc = "SAS Enclosure Device Status Change";
555 case MPI2_EVENT_IR_VOLUME:
558 case MPI2_EVENT_IR_PHYSICAL_DISK:
559 desc = "IR Physical Disk";
561 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
562 desc = "IR Configuration Change List";
564 case MPI2_EVENT_LOG_ENTRY_ADDED:
565 desc = "Log Entry Added";
572 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, desc);
577 * _base_sas_log_info - verbose translation of firmware log info
578 * @ioc: per adapter object
579 * @log_info: log info
584 _base_sas_log_info(struct MPT2SAS_ADAPTER *ioc , u32 log_info)
595 union loginfo_type sas_loginfo;
596 char *originator_str = NULL;
598 sas_loginfo.loginfo = log_info;
599 if (sas_loginfo.dw.bus_type != 3 /*SAS*/)
602 /* each nexus loss loginfo */
603 if (log_info == 0x31170000)
606 /* eat the loginfos associated with task aborts */
607 if (ioc->ignore_loginfos && (log_info == 30050000 || log_info ==
608 0x31140000 || log_info == 0x31130000))
611 switch (sas_loginfo.dw.originator) {
613 originator_str = "IOP";
616 originator_str = "PL";
619 originator_str = "IR";
623 printk(MPT2SAS_WARN_FMT "log_info(0x%08x): originator(%s), "
624 "code(0x%02x), sub_code(0x%04x)\n", ioc->name, log_info,
625 originator_str, sas_loginfo.dw.code,
626 sas_loginfo.dw.subcode);
630 * _base_display_reply_info -
631 * @ioc: per adapter object
632 * @smid: system request message index
633 * @msix_index: MSIX table index supplied by the OS
634 * @reply: reply message frame(lower 32bit addr)
639 _base_display_reply_info(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
642 MPI2DefaultReply_t *mpi_reply;
645 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
646 ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
647 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
648 if ((ioc_status & MPI2_IOCSTATUS_MASK) &&
649 (ioc->logging_level & MPT_DEBUG_REPLY)) {
650 _base_sas_ioc_info(ioc , mpi_reply,
651 mpt2sas_base_get_msg_frame(ioc, smid));
654 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
655 _base_sas_log_info(ioc, le32_to_cpu(mpi_reply->IOCLogInfo));
659 * mpt2sas_base_done - base internal command completion routine
660 * @ioc: per adapter object
661 * @smid: system request message index
662 * @msix_index: MSIX table index supplied by the OS
663 * @reply: reply message frame(lower 32bit addr)
665 * Return 1 meaning mf should be freed from _base_interrupt
666 * 0 means the mf is freed from this function.
669 mpt2sas_base_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
672 MPI2DefaultReply_t *mpi_reply;
674 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
675 if (mpi_reply && mpi_reply->Function == MPI2_FUNCTION_EVENT_ACK)
678 if (ioc->base_cmds.status == MPT2_CMD_NOT_USED)
681 ioc->base_cmds.status |= MPT2_CMD_COMPLETE;
683 ioc->base_cmds.status |= MPT2_CMD_REPLY_VALID;
684 memcpy(ioc->base_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
686 ioc->base_cmds.status &= ~MPT2_CMD_PENDING;
687 complete(&ioc->base_cmds.done);
692 * _base_async_event - main callback handler for firmware asyn events
693 * @ioc: per adapter object
694 * @msix_index: MSIX table index supplied by the OS
695 * @reply: reply message frame(lower 32bit addr)
697 * Return 1 meaning mf should be freed from _base_interrupt
698 * 0 means the mf is freed from this function.
701 _base_async_event(struct MPT2SAS_ADAPTER *ioc, u8 msix_index, u32 reply)
703 Mpi2EventNotificationReply_t *mpi_reply;
704 Mpi2EventAckRequest_t *ack_request;
707 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
710 if (mpi_reply->Function != MPI2_FUNCTION_EVENT_NOTIFICATION)
712 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
713 _base_display_event_data(ioc, mpi_reply);
715 if (!(mpi_reply->AckRequired & MPI2_EVENT_NOTIFICATION_ACK_REQUIRED))
717 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx);
719 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
720 ioc->name, __func__);
724 ack_request = mpt2sas_base_get_msg_frame(ioc, smid);
725 memset(ack_request, 0, sizeof(Mpi2EventAckRequest_t));
726 ack_request->Function = MPI2_FUNCTION_EVENT_ACK;
727 ack_request->Event = mpi_reply->Event;
728 ack_request->EventContext = mpi_reply->EventContext;
729 ack_request->VF_ID = 0; /* TODO */
730 ack_request->VP_ID = 0;
731 mpt2sas_base_put_smid_default(ioc, smid);
735 /* scsih callback handler */
736 mpt2sas_scsih_event_callback(ioc, msix_index, reply);
738 /* ctl callback handler */
739 mpt2sas_ctl_event_callback(ioc, msix_index, reply);
745 * _base_get_cb_idx - obtain the callback index
746 * @ioc: per adapter object
747 * @smid: system request message index
749 * Return callback index.
752 _base_get_cb_idx(struct MPT2SAS_ADAPTER *ioc, u16 smid)
757 if (smid < ioc->hi_priority_smid) {
759 cb_idx = ioc->scsi_lookup[i].cb_idx;
760 } else if (smid < ioc->internal_smid) {
761 i = smid - ioc->hi_priority_smid;
762 cb_idx = ioc->hpr_lookup[i].cb_idx;
763 } else if (smid <= ioc->hba_queue_depth) {
764 i = smid - ioc->internal_smid;
765 cb_idx = ioc->internal_lookup[i].cb_idx;
772 * _base_mask_interrupts - disable interrupts
773 * @ioc: per adapter object
775 * Disabling ResetIRQ, Reply and Doorbell Interrupts
780 _base_mask_interrupts(struct MPT2SAS_ADAPTER *ioc)
784 ioc->mask_interrupts = 1;
785 him_register = readl(&ioc->chip->HostInterruptMask);
786 him_register |= MPI2_HIM_DIM + MPI2_HIM_RIM + MPI2_HIM_RESET_IRQ_MASK;
787 writel(him_register, &ioc->chip->HostInterruptMask);
788 readl(&ioc->chip->HostInterruptMask);
792 * _base_unmask_interrupts - enable interrupts
793 * @ioc: per adapter object
795 * Enabling only Reply Interrupts
800 _base_unmask_interrupts(struct MPT2SAS_ADAPTER *ioc)
804 him_register = readl(&ioc->chip->HostInterruptMask);
805 him_register &= ~MPI2_HIM_RIM;
806 writel(him_register, &ioc->chip->HostInterruptMask);
807 ioc->mask_interrupts = 0;
810 union reply_descriptor {
819 * _base_interrupt - MPT adapter (IOC) specific interrupt handler.
820 * @irq: irq number (not used)
821 * @bus_id: bus identifier cookie == pointer to MPT_ADAPTER structure
822 * @r: pt_regs pointer (not used)
824 * Return IRQ_HANDLE if processed, else IRQ_NONE.
827 _base_interrupt(int irq, void *bus_id)
829 union reply_descriptor rd;
831 u8 request_desript_type;
836 struct MPT2SAS_ADAPTER *ioc = bus_id;
837 Mpi2ReplyDescriptorsUnion_t *rpf;
840 if (ioc->mask_interrupts)
843 rpf = &ioc->reply_post_free[ioc->reply_post_host_index];
844 request_desript_type = rpf->Default.ReplyFlags
845 & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
846 if (request_desript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED)
852 rd.word = rpf->Words;
853 if (rd.u.low == UINT_MAX || rd.u.high == UINT_MAX)
857 smid = le16_to_cpu(rpf->Default.DescriptorTypeDependent1);
858 msix_index = rpf->Default.MSIxIndex;
859 if (request_desript_type ==
860 MPI2_RPY_DESCRIPT_FLAGS_ADDRESS_REPLY) {
862 (rpf->AddressReply.ReplyFrameAddress);
863 if (reply > ioc->reply_dma_max_address ||
864 reply < ioc->reply_dma_min_address)
866 } else if (request_desript_type ==
867 MPI2_RPY_DESCRIPT_FLAGS_TARGET_COMMAND_BUFFER)
869 else if (request_desript_type ==
870 MPI2_RPY_DESCRIPT_FLAGS_TARGETASSIST_SUCCESS)
873 cb_idx = _base_get_cb_idx(ioc, smid);
874 if (smid && cb_idx != 0xFF) {
875 rc = mpt_callbacks[cb_idx](ioc, smid, msix_index,
878 _base_display_reply_info(ioc, smid, msix_index,
881 mpt2sas_base_free_smid(ioc, smid);
884 _base_async_event(ioc, msix_index, reply);
886 /* reply free queue handling */
888 ioc->reply_free_host_index =
889 (ioc->reply_free_host_index ==
890 (ioc->reply_free_queue_depth - 1)) ?
891 0 : ioc->reply_free_host_index + 1;
892 ioc->reply_free[ioc->reply_free_host_index] =
895 writel(ioc->reply_free_host_index,
896 &ioc->chip->ReplyFreeHostIndex);
901 rpf->Words = ULLONG_MAX;
902 ioc->reply_post_host_index = (ioc->reply_post_host_index ==
903 (ioc->reply_post_queue_depth - 1)) ? 0 :
904 ioc->reply_post_host_index + 1;
905 request_desript_type =
906 ioc->reply_post_free[ioc->reply_post_host_index].Default.
907 ReplyFlags & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
909 if (request_desript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED)
911 if (!ioc->reply_post_host_index)
912 rpf = ioc->reply_post_free;
923 writel(ioc->reply_post_host_index, &ioc->chip->ReplyPostHostIndex);
928 * mpt2sas_base_release_callback_handler - clear interupt callback handler
929 * @cb_idx: callback index
934 mpt2sas_base_release_callback_handler(u8 cb_idx)
936 mpt_callbacks[cb_idx] = NULL;
940 * mpt2sas_base_register_callback_handler - obtain index for the interrupt callback handler
941 * @cb_func: callback function
946 mpt2sas_base_register_callback_handler(MPT_CALLBACK cb_func)
950 for (cb_idx = MPT_MAX_CALLBACKS-1; cb_idx; cb_idx--)
951 if (mpt_callbacks[cb_idx] == NULL)
954 mpt_callbacks[cb_idx] = cb_func;
959 * mpt2sas_base_initialize_callback_handler - initialize the interrupt callback handler
964 mpt2sas_base_initialize_callback_handler(void)
968 for (cb_idx = 0; cb_idx < MPT_MAX_CALLBACKS; cb_idx++)
969 mpt2sas_base_release_callback_handler(cb_idx);
973 * mpt2sas_base_build_zero_len_sge - build zero length sg entry
974 * @ioc: per adapter object
975 * @paddr: virtual address for SGE
977 * Create a zero length scatter gather entry to insure the IOCs hardware has
978 * something to use if the target device goes brain dead and tries
979 * to send data even when none is asked for.
984 mpt2sas_base_build_zero_len_sge(struct MPT2SAS_ADAPTER *ioc, void *paddr)
986 u32 flags_length = (u32)((MPI2_SGE_FLAGS_LAST_ELEMENT |
987 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST |
988 MPI2_SGE_FLAGS_SIMPLE_ELEMENT) <<
989 MPI2_SGE_FLAGS_SHIFT);
990 ioc->base_add_sg_single(paddr, flags_length, -1);
994 * _base_add_sg_single_32 - Place a simple 32 bit SGE at address pAddr.
995 * @paddr: virtual address for SGE
996 * @flags_length: SGE flags and data transfer length
997 * @dma_addr: Physical address
1002 _base_add_sg_single_32(void *paddr, u32 flags_length, dma_addr_t dma_addr)
1004 Mpi2SGESimple32_t *sgel = paddr;
1006 flags_length |= (MPI2_SGE_FLAGS_32_BIT_ADDRESSING |
1007 MPI2_SGE_FLAGS_SYSTEM_ADDRESS) << MPI2_SGE_FLAGS_SHIFT;
1008 sgel->FlagsLength = cpu_to_le32(flags_length);
1009 sgel->Address = cpu_to_le32(dma_addr);
1014 * _base_add_sg_single_64 - Place a simple 64 bit SGE at address pAddr.
1015 * @paddr: virtual address for SGE
1016 * @flags_length: SGE flags and data transfer length
1017 * @dma_addr: Physical address
1022 _base_add_sg_single_64(void *paddr, u32 flags_length, dma_addr_t dma_addr)
1024 Mpi2SGESimple64_t *sgel = paddr;
1026 flags_length |= (MPI2_SGE_FLAGS_64_BIT_ADDRESSING |
1027 MPI2_SGE_FLAGS_SYSTEM_ADDRESS) << MPI2_SGE_FLAGS_SHIFT;
1028 sgel->FlagsLength = cpu_to_le32(flags_length);
1029 sgel->Address = cpu_to_le64(dma_addr);
1032 #define convert_to_kb(x) ((x) << (PAGE_SHIFT - 10))
1035 * _base_config_dma_addressing - set dma addressing
1036 * @ioc: per adapter object
1037 * @pdev: PCI device struct
1039 * Returns 0 for success, non-zero for failure.
1042 _base_config_dma_addressing(struct MPT2SAS_ADAPTER *ioc, struct pci_dev *pdev)
1047 if (sizeof(dma_addr_t) > 4) {
1048 const uint64_t required_mask =
1049 dma_get_required_mask(&pdev->dev);
1050 if ((required_mask > DMA_BIT_MASK(32)) && !pci_set_dma_mask(pdev,
1051 DMA_BIT_MASK(64)) && !pci_set_consistent_dma_mask(pdev,
1052 DMA_BIT_MASK(64))) {
1053 ioc->base_add_sg_single = &_base_add_sg_single_64;
1054 ioc->sge_size = sizeof(Mpi2SGESimple64_t);
1060 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
1061 && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
1062 ioc->base_add_sg_single = &_base_add_sg_single_32;
1063 ioc->sge_size = sizeof(Mpi2SGESimple32_t);
1070 printk(MPT2SAS_INFO_FMT "%s BIT PCI BUS DMA ADDRESSING SUPPORTED, "
1071 "total mem (%ld kB)\n", ioc->name, desc, convert_to_kb(s.totalram));
1077 * _base_save_msix_table - backup msix vector table
1078 * @ioc: per adapter object
1080 * This address an errata where diag reset clears out the table
1083 _base_save_msix_table(struct MPT2SAS_ADAPTER *ioc)
1087 if (!ioc->msix_enable || ioc->msix_table_backup == NULL)
1090 for (i = 0; i < ioc->msix_vector_count; i++)
1091 ioc->msix_table_backup[i] = ioc->msix_table[i];
1095 * _base_restore_msix_table - this restores the msix vector table
1096 * @ioc: per adapter object
1100 _base_restore_msix_table(struct MPT2SAS_ADAPTER *ioc)
1104 if (!ioc->msix_enable || ioc->msix_table_backup == NULL)
1107 for (i = 0; i < ioc->msix_vector_count; i++)
1108 ioc->msix_table[i] = ioc->msix_table_backup[i];
1112 * _base_check_enable_msix - checks MSIX capabable.
1113 * @ioc: per adapter object
1115 * Check to see if card is capable of MSIX, and set number
1116 * of avaliable msix vectors
1119 _base_check_enable_msix(struct MPT2SAS_ADAPTER *ioc)
1122 u16 message_control;
1123 u32 msix_table_offset;
1125 base = pci_find_capability(ioc->pdev, PCI_CAP_ID_MSIX);
1127 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "msix not "
1128 "supported\n", ioc->name));
1132 /* get msix vector count */
1133 pci_read_config_word(ioc->pdev, base + 2, &message_control);
1134 ioc->msix_vector_count = (message_control & 0x3FF) + 1;
1136 /* get msix table */
1137 pci_read_config_dword(ioc->pdev, base + 4, &msix_table_offset);
1138 msix_table_offset &= 0xFFFFFFF8;
1139 ioc->msix_table = (u32 *)((void *)ioc->chip + msix_table_offset);
1141 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "msix is supported, "
1142 "vector_count(%d), table_offset(0x%08x), table(%p)\n", ioc->name,
1143 ioc->msix_vector_count, msix_table_offset, ioc->msix_table));
1148 * _base_disable_msix - disables msix
1149 * @ioc: per adapter object
1153 _base_disable_msix(struct MPT2SAS_ADAPTER *ioc)
1155 if (ioc->msix_enable) {
1156 pci_disable_msix(ioc->pdev);
1157 kfree(ioc->msix_table_backup);
1158 ioc->msix_table_backup = NULL;
1159 ioc->msix_enable = 0;
1164 * _base_enable_msix - enables msix, failback to io_apic
1165 * @ioc: per adapter object
1169 _base_enable_msix(struct MPT2SAS_ADAPTER *ioc)
1171 struct msix_entry entries;
1175 if (msix_disable == -1 || msix_disable == 0)
1181 if (_base_check_enable_msix(ioc) != 0)
1184 ioc->msix_table_backup = kcalloc(ioc->msix_vector_count,
1185 sizeof(u32), GFP_KERNEL);
1186 if (!ioc->msix_table_backup) {
1187 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "allocation for "
1188 "msix_table_backup failed!!!\n", ioc->name));
1192 memset(&entries, 0, sizeof(struct msix_entry));
1193 r = pci_enable_msix(ioc->pdev, &entries, 1);
1195 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "pci_enable_msix "
1196 "failed (r=%d) !!!\n", ioc->name, r));
1200 r = request_irq(entries.vector, _base_interrupt, IRQF_SHARED,
1203 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "unable to allocate "
1204 "interrupt %d !!!\n", ioc->name, entries.vector));
1205 pci_disable_msix(ioc->pdev);
1209 ioc->pci_irq = entries.vector;
1210 ioc->msix_enable = 1;
1213 /* failback to io_apic interrupt routing */
1216 r = request_irq(ioc->pdev->irq, _base_interrupt, IRQF_SHARED,
1219 printk(MPT2SAS_ERR_FMT "unable to allocate interrupt %d!\n",
1220 ioc->name, ioc->pdev->irq);
1225 ioc->pci_irq = ioc->pdev->irq;
1233 * mpt2sas_base_map_resources - map in controller resources (io/irq/memap)
1234 * @ioc: per adapter object
1236 * Returns 0 for success, non-zero for failure.
1239 mpt2sas_base_map_resources(struct MPT2SAS_ADAPTER *ioc)
1241 struct pci_dev *pdev = ioc->pdev;
1248 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n",
1249 ioc->name, __func__));
1251 ioc->bars = pci_select_bars(pdev, IORESOURCE_MEM);
1252 if (pci_enable_device_mem(pdev)) {
1253 printk(MPT2SAS_WARN_FMT "pci_enable_device_mem: "
1254 "failed\n", ioc->name);
1259 if (pci_request_selected_regions(pdev, ioc->bars,
1260 MPT2SAS_DRIVER_NAME)) {
1261 printk(MPT2SAS_WARN_FMT "pci_request_selected_regions: "
1262 "failed\n", ioc->name);
1267 /* AER (Advanced Error Reporting) hooks */
1268 pci_enable_pcie_error_reporting(pdev);
1270 pci_set_master(pdev);
1272 if (_base_config_dma_addressing(ioc, pdev) != 0) {
1273 printk(MPT2SAS_WARN_FMT "no suitable DMA mask for %s\n",
1274 ioc->name, pci_name(pdev));
1279 for (i = 0, memap_sz = 0, pio_sz = 0 ; i < DEVICE_COUNT_RESOURCE; i++) {
1280 if (pci_resource_flags(pdev, i) & IORESOURCE_IO) {
1283 pio_chip = (u64)pci_resource_start(pdev, i);
1284 pio_sz = pci_resource_len(pdev, i);
1288 /* verify memory resource is valid before using */
1289 if (pci_resource_flags(pdev, i) & IORESOURCE_MEM) {
1290 ioc->chip_phys = pci_resource_start(pdev, i);
1291 chip_phys = (u64)ioc->chip_phys;
1292 memap_sz = pci_resource_len(pdev, i);
1293 ioc->chip = ioremap(ioc->chip_phys, memap_sz);
1294 if (ioc->chip == NULL) {
1295 printk(MPT2SAS_ERR_FMT "unable to map "
1296 "adapter memory!\n", ioc->name);
1304 _base_mask_interrupts(ioc);
1305 r = _base_enable_msix(ioc);
1309 printk(MPT2SAS_INFO_FMT "%s: IRQ %d\n",
1310 ioc->name, ((ioc->msix_enable) ? "PCI-MSI-X enabled" :
1311 "IO-APIC enabled"), ioc->pci_irq);
1312 printk(MPT2SAS_INFO_FMT "iomem(0x%016llx), mapped(0x%p), size(%d)\n",
1313 ioc->name, (unsigned long long)chip_phys, ioc->chip, memap_sz);
1314 printk(MPT2SAS_INFO_FMT "ioport(0x%016llx), size(%d)\n",
1315 ioc->name, (unsigned long long)pio_chip, pio_sz);
1317 /* Save PCI configuration state for recovery from PCI AER/EEH errors */
1318 pci_save_state(pdev);
1327 pci_release_selected_regions(ioc->pdev, ioc->bars);
1328 pci_disable_pcie_error_reporting(pdev);
1329 pci_disable_device(pdev);
1334 * mpt2sas_base_get_msg_frame - obtain request mf pointer
1335 * @ioc: per adapter object
1336 * @smid: system request message index(smid zero is invalid)
1338 * Returns virt pointer to message frame.
1341 mpt2sas_base_get_msg_frame(struct MPT2SAS_ADAPTER *ioc, u16 smid)
1343 return (void *)(ioc->request + (smid * ioc->request_sz));
1347 * mpt2sas_base_get_sense_buffer - obtain a sense buffer assigned to a mf request
1348 * @ioc: per adapter object
1349 * @smid: system request message index
1351 * Returns virt pointer to sense buffer.
1354 mpt2sas_base_get_sense_buffer(struct MPT2SAS_ADAPTER *ioc, u16 smid)
1356 return (void *)(ioc->sense + ((smid - 1) * SCSI_SENSE_BUFFERSIZE));
1360 * mpt2sas_base_get_sense_buffer_dma - obtain a sense buffer assigned to a mf request
1361 * @ioc: per adapter object
1362 * @smid: system request message index
1364 * Returns phys pointer to the low 32bit address of the sense buffer.
1367 mpt2sas_base_get_sense_buffer_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid)
1369 return cpu_to_le32(ioc->sense_dma +
1370 ((smid - 1) * SCSI_SENSE_BUFFERSIZE));
1374 * mpt2sas_base_get_reply_virt_addr - obtain reply frames virt address
1375 * @ioc: per adapter object
1376 * @phys_addr: lower 32 physical addr of the reply
1378 * Converts 32bit lower physical addr into a virt address.
1381 mpt2sas_base_get_reply_virt_addr(struct MPT2SAS_ADAPTER *ioc, u32 phys_addr)
1385 return ioc->reply + (phys_addr - (u32)ioc->reply_dma);
1389 * mpt2sas_base_get_smid - obtain a free smid from internal queue
1390 * @ioc: per adapter object
1391 * @cb_idx: callback index
1393 * Returns smid (zero is invalid)
1396 mpt2sas_base_get_smid(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx)
1398 unsigned long flags;
1399 struct request_tracker *request;
1402 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1403 if (list_empty(&ioc->internal_free_list)) {
1404 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1405 printk(MPT2SAS_ERR_FMT "%s: smid not available\n",
1406 ioc->name, __func__);
1410 request = list_entry(ioc->internal_free_list.next,
1411 struct request_tracker, tracker_list);
1412 request->cb_idx = cb_idx;
1413 smid = request->smid;
1414 list_del(&request->tracker_list);
1415 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1420 * mpt2sas_base_get_smid_scsiio - obtain a free smid from scsiio queue
1421 * @ioc: per adapter object
1422 * @cb_idx: callback index
1423 * @scmd: pointer to scsi command object
1425 * Returns smid (zero is invalid)
1428 mpt2sas_base_get_smid_scsiio(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx,
1429 struct scsi_cmnd *scmd)
1431 unsigned long flags;
1432 struct scsiio_tracker *request;
1435 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1436 if (list_empty(&ioc->free_list)) {
1437 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1438 printk(MPT2SAS_ERR_FMT "%s: smid not available\n",
1439 ioc->name, __func__);
1443 request = list_entry(ioc->free_list.next,
1444 struct scsiio_tracker, tracker_list);
1445 request->scmd = scmd;
1446 request->cb_idx = cb_idx;
1447 smid = request->smid;
1448 list_del(&request->tracker_list);
1449 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1454 * mpt2sas_base_get_smid_hpr - obtain a free smid from hi-priority queue
1455 * @ioc: per adapter object
1456 * @cb_idx: callback index
1458 * Returns smid (zero is invalid)
1461 mpt2sas_base_get_smid_hpr(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx)
1463 unsigned long flags;
1464 struct request_tracker *request;
1467 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1468 if (list_empty(&ioc->hpr_free_list)) {
1469 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1473 request = list_entry(ioc->hpr_free_list.next,
1474 struct request_tracker, tracker_list);
1475 request->cb_idx = cb_idx;
1476 smid = request->smid;
1477 list_del(&request->tracker_list);
1478 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1484 * mpt2sas_base_free_smid - put smid back on free_list
1485 * @ioc: per adapter object
1486 * @smid: system request message index
1491 mpt2sas_base_free_smid(struct MPT2SAS_ADAPTER *ioc, u16 smid)
1493 unsigned long flags;
1495 struct chain_tracker *chain_req, *next;
1497 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1498 if (smid < ioc->hi_priority_smid) {
1501 if (!list_empty(&ioc->scsi_lookup[i].chain_list)) {
1502 list_for_each_entry_safe(chain_req, next,
1503 &ioc->scsi_lookup[i].chain_list, tracker_list) {
1504 list_del_init(&chain_req->tracker_list);
1505 list_add_tail(&chain_req->tracker_list,
1506 &ioc->free_chain_list);
1509 ioc->scsi_lookup[i].cb_idx = 0xFF;
1510 ioc->scsi_lookup[i].scmd = NULL;
1511 list_add_tail(&ioc->scsi_lookup[i].tracker_list,
1513 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1516 * See _wait_for_commands_to_complete() call with regards
1519 if (ioc->shost_recovery && ioc->pending_io_count) {
1520 if (ioc->pending_io_count == 1)
1521 wake_up(&ioc->reset_wq);
1522 ioc->pending_io_count--;
1525 } else if (smid < ioc->internal_smid) {
1527 i = smid - ioc->hi_priority_smid;
1528 ioc->hpr_lookup[i].cb_idx = 0xFF;
1529 list_add_tail(&ioc->hpr_lookup[i].tracker_list,
1530 &ioc->hpr_free_list);
1531 } else if (smid <= ioc->hba_queue_depth) {
1532 /* internal queue */
1533 i = smid - ioc->internal_smid;
1534 ioc->internal_lookup[i].cb_idx = 0xFF;
1535 list_add_tail(&ioc->internal_lookup[i].tracker_list,
1536 &ioc->internal_free_list);
1538 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1542 * _base_writeq - 64 bit write to MMIO
1543 * @ioc: per adapter object
1545 * @addr: address in MMIO space
1546 * @writeq_lock: spin lock
1548 * Glue for handling an atomic 64 bit word to MMIO. This special handling takes
1549 * care of 32 bit environment where its not quarenteed to send the entire word
1553 static inline void _base_writeq(__u64 b, volatile void __iomem *addr,
1554 spinlock_t *writeq_lock)
1556 unsigned long flags;
1557 __u64 data_out = cpu_to_le64(b);
1559 spin_lock_irqsave(writeq_lock, flags);
1560 writel((u32)(data_out), addr);
1561 writel((u32)(data_out >> 32), (addr + 4));
1562 spin_unlock_irqrestore(writeq_lock, flags);
1565 static inline void _base_writeq(__u64 b, volatile void __iomem *addr,
1566 spinlock_t *writeq_lock)
1568 writeq(cpu_to_le64(b), addr);
1573 * mpt2sas_base_put_smid_scsi_io - send SCSI_IO request to firmware
1574 * @ioc: per adapter object
1575 * @smid: system request message index
1576 * @handle: device handle
1581 mpt2sas_base_put_smid_scsi_io(struct MPT2SAS_ADAPTER *ioc, u16 smid, u16 handle)
1583 Mpi2RequestDescriptorUnion_t descriptor;
1584 u64 *request = (u64 *)&descriptor;
1587 descriptor.SCSIIO.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO;
1588 descriptor.SCSIIO.MSIxIndex = 0; /* TODO */
1589 descriptor.SCSIIO.SMID = cpu_to_le16(smid);
1590 descriptor.SCSIIO.DevHandle = cpu_to_le16(handle);
1591 descriptor.SCSIIO.LMID = 0;
1592 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
1593 &ioc->scsi_lookup_lock);
1598 * mpt2sas_base_put_smid_hi_priority - send Task Managment request to firmware
1599 * @ioc: per adapter object
1600 * @smid: system request message index
1605 mpt2sas_base_put_smid_hi_priority(struct MPT2SAS_ADAPTER *ioc, u16 smid)
1607 Mpi2RequestDescriptorUnion_t descriptor;
1608 u64 *request = (u64 *)&descriptor;
1610 descriptor.HighPriority.RequestFlags =
1611 MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY;
1612 descriptor.HighPriority.MSIxIndex = 0; /* TODO */
1613 descriptor.HighPriority.SMID = cpu_to_le16(smid);
1614 descriptor.HighPriority.LMID = 0;
1615 descriptor.HighPriority.Reserved1 = 0;
1616 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
1617 &ioc->scsi_lookup_lock);
1621 * mpt2sas_base_put_smid_default - Default, primarily used for config pages
1622 * @ioc: per adapter object
1623 * @smid: system request message index
1628 mpt2sas_base_put_smid_default(struct MPT2SAS_ADAPTER *ioc, u16 smid)
1630 Mpi2RequestDescriptorUnion_t descriptor;
1631 u64 *request = (u64 *)&descriptor;
1633 descriptor.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
1634 descriptor.Default.MSIxIndex = 0; /* TODO */
1635 descriptor.Default.SMID = cpu_to_le16(smid);
1636 descriptor.Default.LMID = 0;
1637 descriptor.Default.DescriptorTypeDependent = 0;
1638 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
1639 &ioc->scsi_lookup_lock);
1643 * mpt2sas_base_put_smid_target_assist - send Target Assist/Status to firmware
1644 * @ioc: per adapter object
1645 * @smid: system request message index
1646 * @io_index: value used to track the IO
1651 mpt2sas_base_put_smid_target_assist(struct MPT2SAS_ADAPTER *ioc, u16 smid,
1654 Mpi2RequestDescriptorUnion_t descriptor;
1655 u64 *request = (u64 *)&descriptor;
1657 descriptor.SCSITarget.RequestFlags =
1658 MPI2_REQ_DESCRIPT_FLAGS_SCSI_TARGET;
1659 descriptor.SCSITarget.MSIxIndex = 0; /* TODO */
1660 descriptor.SCSITarget.SMID = cpu_to_le16(smid);
1661 descriptor.SCSITarget.LMID = 0;
1662 descriptor.SCSITarget.IoIndex = cpu_to_le16(io_index);
1663 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
1664 &ioc->scsi_lookup_lock);
1668 * _base_display_dell_branding - Disply branding string
1669 * @ioc: per adapter object
1674 _base_display_dell_branding(struct MPT2SAS_ADAPTER *ioc)
1676 char dell_branding[MPT2SAS_DELL_BRANDING_SIZE];
1678 if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_DELL)
1681 memset(dell_branding, 0, MPT2SAS_DELL_BRANDING_SIZE);
1682 switch (ioc->pdev->subsystem_device) {
1683 case MPT2SAS_DELL_6GBPS_SAS_HBA_SSDID:
1684 strncpy(dell_branding, MPT2SAS_DELL_6GBPS_SAS_HBA_BRANDING,
1685 MPT2SAS_DELL_BRANDING_SIZE - 1);
1687 case MPT2SAS_DELL_PERC_H200_ADAPTER_SSDID:
1688 strncpy(dell_branding, MPT2SAS_DELL_PERC_H200_ADAPTER_BRANDING,
1689 MPT2SAS_DELL_BRANDING_SIZE - 1);
1691 case MPT2SAS_DELL_PERC_H200_INTEGRATED_SSDID:
1692 strncpy(dell_branding,
1693 MPT2SAS_DELL_PERC_H200_INTEGRATED_BRANDING,
1694 MPT2SAS_DELL_BRANDING_SIZE - 1);
1696 case MPT2SAS_DELL_PERC_H200_MODULAR_SSDID:
1697 strncpy(dell_branding,
1698 MPT2SAS_DELL_PERC_H200_MODULAR_BRANDING,
1699 MPT2SAS_DELL_BRANDING_SIZE - 1);
1701 case MPT2SAS_DELL_PERC_H200_EMBEDDED_SSDID:
1702 strncpy(dell_branding,
1703 MPT2SAS_DELL_PERC_H200_EMBEDDED_BRANDING,
1704 MPT2SAS_DELL_BRANDING_SIZE - 1);
1706 case MPT2SAS_DELL_PERC_H200_SSDID:
1707 strncpy(dell_branding, MPT2SAS_DELL_PERC_H200_BRANDING,
1708 MPT2SAS_DELL_BRANDING_SIZE - 1);
1710 case MPT2SAS_DELL_6GBPS_SAS_SSDID:
1711 strncpy(dell_branding, MPT2SAS_DELL_6GBPS_SAS_BRANDING,
1712 MPT2SAS_DELL_BRANDING_SIZE - 1);
1715 sprintf(dell_branding, "0x%4X", ioc->pdev->subsystem_device);
1719 printk(MPT2SAS_INFO_FMT "%s: Vendor(0x%04X), Device(0x%04X),"
1720 " SSVID(0x%04X), SSDID(0x%04X)\n", ioc->name, dell_branding,
1721 ioc->pdev->vendor, ioc->pdev->device, ioc->pdev->subsystem_vendor,
1722 ioc->pdev->subsystem_device);
1726 * _base_display_intel_branding - Display branding string
1727 * @ioc: per adapter object
1732 _base_display_intel_branding(struct MPT2SAS_ADAPTER *ioc)
1734 if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_INTEL &&
1735 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2008) {
1737 switch (ioc->pdev->subsystem_device) {
1738 case MPT2SAS_INTEL_RMS2LL080_SSDID:
1739 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
1740 MPT2SAS_INTEL_RMS2LL080_BRANDING);
1742 case MPT2SAS_INTEL_RMS2LL040_SSDID:
1743 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
1744 MPT2SAS_INTEL_RMS2LL040_BRANDING);
1751 * _base_display_ioc_capabilities - Disply IOC's capabilities.
1752 * @ioc: per adapter object
1757 _base_display_ioc_capabilities(struct MPT2SAS_ADAPTER *ioc)
1762 u32 iounit_pg1_flags;
1764 pci_read_config_byte(ioc->pdev, PCI_CLASS_REVISION, &revision);
1765 strncpy(desc, ioc->manu_pg0.ChipName, 16);
1766 printk(MPT2SAS_INFO_FMT "%s: FWVersion(%02d.%02d.%02d.%02d), "
1767 "ChipRevision(0x%02x), BiosVersion(%02d.%02d.%02d.%02d)\n",
1769 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
1770 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
1771 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
1772 ioc->facts.FWVersion.Word & 0x000000FF,
1774 (ioc->bios_pg3.BiosVersion & 0xFF000000) >> 24,
1775 (ioc->bios_pg3.BiosVersion & 0x00FF0000) >> 16,
1776 (ioc->bios_pg3.BiosVersion & 0x0000FF00) >> 8,
1777 ioc->bios_pg3.BiosVersion & 0x000000FF);
1779 _base_display_dell_branding(ioc);
1780 _base_display_intel_branding(ioc);
1782 printk(MPT2SAS_INFO_FMT "Protocol=(", ioc->name);
1784 if (ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR) {
1785 printk("Initiator");
1789 if (ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_TARGET) {
1790 printk("%sTarget", i ? "," : "");
1796 printk("Capabilities=(");
1798 if (ioc->facts.IOCCapabilities &
1799 MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID) {
1804 if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR) {
1805 printk("%sTLR", i ? "," : "");
1809 if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_MULTICAST) {
1810 printk("%sMulticast", i ? "," : "");
1814 if (ioc->facts.IOCCapabilities &
1815 MPI2_IOCFACTS_CAPABILITY_BIDIRECTIONAL_TARGET) {
1816 printk("%sBIDI Target", i ? "," : "");
1820 if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_EEDP) {
1821 printk("%sEEDP", i ? "," : "");
1825 if (ioc->facts.IOCCapabilities &
1826 MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER) {
1827 printk("%sSnapshot Buffer", i ? "," : "");
1831 if (ioc->facts.IOCCapabilities &
1832 MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER) {
1833 printk("%sDiag Trace Buffer", i ? "," : "");
1837 if (ioc->facts.IOCCapabilities &
1838 MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER) {
1839 printk(KERN_INFO "%sDiag Extended Buffer", i ? "," : "");
1843 if (ioc->facts.IOCCapabilities &
1844 MPI2_IOCFACTS_CAPABILITY_TASK_SET_FULL_HANDLING) {
1845 printk("%sTask Set Full", i ? "," : "");
1849 iounit_pg1_flags = le32_to_cpu(ioc->iounit_pg1.Flags);
1850 if (!(iounit_pg1_flags & MPI2_IOUNITPAGE1_NATIVE_COMMAND_Q_DISABLE)) {
1851 printk("%sNCQ", i ? "," : "");
1859 * _base_update_missing_delay - change the missing delay timers
1860 * @ioc: per adapter object
1861 * @device_missing_delay: amount of time till device is reported missing
1862 * @io_missing_delay: interval IO is returned when there is a missing device
1866 * Passed on the command line, this function will modify the device missing
1867 * delay, as well as the io missing delay. This should be called at driver
1871 _base_update_missing_delay(struct MPT2SAS_ADAPTER *ioc,
1872 u16 device_missing_delay, u8 io_missing_delay)
1874 u16 dmd, dmd_new, dmd_orignal;
1875 u8 io_missing_delay_original;
1877 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
1878 Mpi2ConfigReply_t mpi_reply;
1882 mpt2sas_config_get_number_hba_phys(ioc, &num_phys);
1886 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (num_phys *
1887 sizeof(Mpi2SasIOUnit1PhyData_t));
1888 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
1889 if (!sas_iounit_pg1) {
1890 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1891 ioc->name, __FILE__, __LINE__, __func__);
1894 if ((mpt2sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
1895 sas_iounit_pg1, sz))) {
1896 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1897 ioc->name, __FILE__, __LINE__, __func__);
1900 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1901 MPI2_IOCSTATUS_MASK;
1902 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
1903 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1904 ioc->name, __FILE__, __LINE__, __func__);
1908 /* device missing delay */
1909 dmd = sas_iounit_pg1->ReportDeviceMissingDelay;
1910 if (dmd & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
1911 dmd = (dmd & MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
1913 dmd = dmd & MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
1915 if (device_missing_delay > 0x7F) {
1916 dmd = (device_missing_delay > 0x7F0) ? 0x7F0 :
1917 device_missing_delay;
1919 dmd |= MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16;
1921 dmd = device_missing_delay;
1922 sas_iounit_pg1->ReportDeviceMissingDelay = dmd;
1924 /* io missing delay */
1925 io_missing_delay_original = sas_iounit_pg1->IODeviceMissingDelay;
1926 sas_iounit_pg1->IODeviceMissingDelay = io_missing_delay;
1928 if (!mpt2sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1,
1930 if (dmd & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
1932 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
1935 dmd & MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
1936 printk(MPT2SAS_INFO_FMT "device_missing_delay: old(%d), "
1937 "new(%d)\n", ioc->name, dmd_orignal, dmd_new);
1938 printk(MPT2SAS_INFO_FMT "ioc_missing_delay: old(%d), "
1939 "new(%d)\n", ioc->name, io_missing_delay_original,
1941 ioc->device_missing_delay = dmd_new;
1942 ioc->io_missing_delay = io_missing_delay;
1946 kfree(sas_iounit_pg1);
1950 * _base_static_config_pages - static start of day config pages
1951 * @ioc: per adapter object
1956 _base_static_config_pages(struct MPT2SAS_ADAPTER *ioc)
1958 Mpi2ConfigReply_t mpi_reply;
1959 u32 iounit_pg1_flags;
1961 mpt2sas_config_get_manufacturing_pg0(ioc, &mpi_reply, &ioc->manu_pg0);
1962 if (ioc->ir_firmware)
1963 mpt2sas_config_get_manufacturing_pg10(ioc, &mpi_reply,
1965 mpt2sas_config_get_bios_pg2(ioc, &mpi_reply, &ioc->bios_pg2);
1966 mpt2sas_config_get_bios_pg3(ioc, &mpi_reply, &ioc->bios_pg3);
1967 mpt2sas_config_get_ioc_pg8(ioc, &mpi_reply, &ioc->ioc_pg8);
1968 mpt2sas_config_get_iounit_pg0(ioc, &mpi_reply, &ioc->iounit_pg0);
1969 mpt2sas_config_get_iounit_pg1(ioc, &mpi_reply, &ioc->iounit_pg1);
1970 _base_display_ioc_capabilities(ioc);
1973 * Enable task_set_full handling in iounit_pg1 when the
1974 * facts capabilities indicate that its supported.
1976 iounit_pg1_flags = le32_to_cpu(ioc->iounit_pg1.Flags);
1977 if ((ioc->facts.IOCCapabilities &
1978 MPI2_IOCFACTS_CAPABILITY_TASK_SET_FULL_HANDLING))
1980 ~MPI2_IOUNITPAGE1_DISABLE_TASK_SET_FULL_HANDLING;
1983 MPI2_IOUNITPAGE1_DISABLE_TASK_SET_FULL_HANDLING;
1984 ioc->iounit_pg1.Flags = cpu_to_le32(iounit_pg1_flags);
1985 mpt2sas_config_set_iounit_pg1(ioc, &mpi_reply, &ioc->iounit_pg1);
1990 * _base_release_memory_pools - release memory
1991 * @ioc: per adapter object
1993 * Free memory allocated from _base_allocate_memory_pools.
1998 _base_release_memory_pools(struct MPT2SAS_ADAPTER *ioc)
2002 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
2006 pci_free_consistent(ioc->pdev, ioc->request_dma_sz,
2007 ioc->request, ioc->request_dma);
2008 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "request_pool(0x%p)"
2009 ": free\n", ioc->name, ioc->request));
2010 ioc->request = NULL;
2014 pci_pool_free(ioc->sense_dma_pool, ioc->sense, ioc->sense_dma);
2015 if (ioc->sense_dma_pool)
2016 pci_pool_destroy(ioc->sense_dma_pool);
2017 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "sense_pool(0x%p)"
2018 ": free\n", ioc->name, ioc->sense));
2023 pci_pool_free(ioc->reply_dma_pool, ioc->reply, ioc->reply_dma);
2024 if (ioc->reply_dma_pool)
2025 pci_pool_destroy(ioc->reply_dma_pool);
2026 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_pool(0x%p)"
2027 ": free\n", ioc->name, ioc->reply));
2031 if (ioc->reply_free) {
2032 pci_pool_free(ioc->reply_free_dma_pool, ioc->reply_free,
2033 ioc->reply_free_dma);
2034 if (ioc->reply_free_dma_pool)
2035 pci_pool_destroy(ioc->reply_free_dma_pool);
2036 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_free_pool"
2037 "(0x%p): free\n", ioc->name, ioc->reply_free));
2038 ioc->reply_free = NULL;
2041 if (ioc->reply_post_free) {
2042 pci_pool_free(ioc->reply_post_free_dma_pool,
2043 ioc->reply_post_free, ioc->reply_post_free_dma);
2044 if (ioc->reply_post_free_dma_pool)
2045 pci_pool_destroy(ioc->reply_post_free_dma_pool);
2046 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT
2047 "reply_post_free_pool(0x%p): free\n", ioc->name,
2048 ioc->reply_post_free));
2049 ioc->reply_post_free = NULL;
2052 if (ioc->config_page) {
2053 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT
2054 "config_page(0x%p): free\n", ioc->name,
2056 pci_free_consistent(ioc->pdev, ioc->config_page_sz,
2057 ioc->config_page, ioc->config_page_dma);
2060 if (ioc->scsi_lookup) {
2061 free_pages((ulong)ioc->scsi_lookup, ioc->scsi_lookup_pages);
2062 ioc->scsi_lookup = NULL;
2064 kfree(ioc->hpr_lookup);
2065 kfree(ioc->internal_lookup);
2066 if (ioc->chain_lookup) {
2067 for (i = 0; i < ioc->chain_depth; i++) {
2068 if (ioc->chain_lookup[i].chain_buffer)
2069 pci_pool_free(ioc->chain_dma_pool,
2070 ioc->chain_lookup[i].chain_buffer,
2071 ioc->chain_lookup[i].chain_buffer_dma);
2073 if (ioc->chain_dma_pool)
2074 pci_pool_destroy(ioc->chain_dma_pool);
2076 if (ioc->chain_lookup) {
2077 free_pages((ulong)ioc->chain_lookup, ioc->chain_pages);
2078 ioc->chain_lookup = NULL;
2084 * _base_allocate_memory_pools - allocate start of day memory pools
2085 * @ioc: per adapter object
2086 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2088 * Returns 0 success, anything else error
2091 _base_allocate_memory_pools(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
2093 Mpi2IOCFactsReply_t *facts;
2094 u32 queue_size, queue_diff;
2095 u16 max_sge_elements;
2096 u16 num_of_reply_frames;
2097 u16 chains_needed_per_io;
2100 u16 max_request_credit;
2103 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
2107 facts = &ioc->facts;
2109 /* command line tunables for max sgl entries */
2110 if (max_sgl_entries != -1) {
2111 ioc->shost->sg_tablesize = (max_sgl_entries <
2112 MPT2SAS_SG_DEPTH) ? max_sgl_entries :
2115 ioc->shost->sg_tablesize = MPT2SAS_SG_DEPTH;
2118 /* command line tunables for max controller queue depth */
2119 if (max_queue_depth != -1)
2120 max_request_credit = (max_queue_depth < facts->RequestCredit)
2121 ? max_queue_depth : facts->RequestCredit;
2123 max_request_credit = facts->RequestCredit;
2125 ioc->hba_queue_depth = max_request_credit;
2126 ioc->hi_priority_depth = facts->HighPriorityCredit;
2127 ioc->internal_depth = ioc->hi_priority_depth + 5;
2129 /* request frame size */
2130 ioc->request_sz = facts->IOCRequestFrameSize * 4;
2132 /* reply frame size */
2133 ioc->reply_sz = facts->ReplyFrameSize * 4;
2137 /* calculate number of sg elements left over in the 1st frame */
2138 max_sge_elements = ioc->request_sz - ((sizeof(Mpi2SCSIIORequest_t) -
2139 sizeof(Mpi2SGEIOUnion_t)) + ioc->sge_size);
2140 ioc->max_sges_in_main_message = max_sge_elements/ioc->sge_size;
2142 /* now do the same for a chain buffer */
2143 max_sge_elements = ioc->request_sz - ioc->sge_size;
2144 ioc->max_sges_in_chain_message = max_sge_elements/ioc->sge_size;
2146 ioc->chain_offset_value_for_main_message =
2147 ((sizeof(Mpi2SCSIIORequest_t) - sizeof(Mpi2SGEIOUnion_t)) +
2148 (ioc->max_sges_in_chain_message * ioc->sge_size)) / 4;
2151 * MPT2SAS_SG_DEPTH = CONFIG_FUSION_MAX_SGE
2153 chains_needed_per_io = ((ioc->shost->sg_tablesize -
2154 ioc->max_sges_in_main_message)/ioc->max_sges_in_chain_message)
2156 if (chains_needed_per_io > facts->MaxChainDepth) {
2157 chains_needed_per_io = facts->MaxChainDepth;
2158 ioc->shost->sg_tablesize = min_t(u16,
2159 ioc->max_sges_in_main_message + (ioc->max_sges_in_chain_message
2160 * chains_needed_per_io), ioc->shost->sg_tablesize);
2162 ioc->chains_needed_per_io = chains_needed_per_io;
2164 /* reply free queue sizing - taking into account for events */
2165 num_of_reply_frames = ioc->hba_queue_depth + 32;
2167 /* number of replies frames can't be a multiple of 16 */
2168 /* decrease number of reply frames by 1 */
2169 if (!(num_of_reply_frames % 16))
2170 num_of_reply_frames--;
2172 /* calculate number of reply free queue entries
2173 * (must be multiple of 16)
2176 /* (we know reply_free_queue_depth is not a multiple of 16) */
2177 queue_size = num_of_reply_frames;
2178 queue_size += 16 - (queue_size % 16);
2179 ioc->reply_free_queue_depth = queue_size;
2181 /* reply descriptor post queue sizing */
2182 /* this size should be the number of request frames + number of reply
2186 queue_size = ioc->hba_queue_depth + num_of_reply_frames + 1;
2187 /* round up to 16 byte boundary */
2188 if (queue_size % 16)
2189 queue_size += 16 - (queue_size % 16);
2191 /* check against IOC maximum reply post queue depth */
2192 if (queue_size > facts->MaxReplyDescriptorPostQueueDepth) {
2193 queue_diff = queue_size -
2194 facts->MaxReplyDescriptorPostQueueDepth;
2196 /* round queue_diff up to multiple of 16 */
2197 if (queue_diff % 16)
2198 queue_diff += 16 - (queue_diff % 16);
2200 /* adjust hba_queue_depth, reply_free_queue_depth,
2203 ioc->hba_queue_depth -= (queue_diff / 2);
2204 ioc->reply_free_queue_depth -= (queue_diff / 2);
2205 queue_size = facts->MaxReplyDescriptorPostQueueDepth;
2207 ioc->reply_post_queue_depth = queue_size;
2209 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scatter gather: "
2210 "sge_in_main_msg(%d), sge_per_chain(%d), sge_per_io(%d), "
2211 "chains_per_io(%d)\n", ioc->name, ioc->max_sges_in_main_message,
2212 ioc->max_sges_in_chain_message, ioc->shost->sg_tablesize,
2213 ioc->chains_needed_per_io));
2215 ioc->scsiio_depth = ioc->hba_queue_depth -
2216 ioc->hi_priority_depth - ioc->internal_depth;
2218 /* set the scsi host can_queue depth
2219 * with some internal commands that could be outstanding
2221 ioc->shost->can_queue = ioc->scsiio_depth - (2);
2222 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scsi host: "
2223 "can_queue depth (%d)\n", ioc->name, ioc->shost->can_queue));
2225 /* contiguous pool for request and chains, 16 byte align, one extra "
2228 ioc->chain_depth = ioc->chains_needed_per_io * ioc->scsiio_depth;
2229 sz = ((ioc->scsiio_depth + 1) * ioc->request_sz);
2231 /* hi-priority queue */
2232 sz += (ioc->hi_priority_depth * ioc->request_sz);
2234 /* internal queue */
2235 sz += (ioc->internal_depth * ioc->request_sz);
2237 ioc->request_dma_sz = sz;
2238 ioc->request = pci_alloc_consistent(ioc->pdev, sz, &ioc->request_dma);
2239 if (!ioc->request) {
2240 printk(MPT2SAS_ERR_FMT "request pool: pci_alloc_consistent "
2241 "failed: hba_depth(%d), chains_per_io(%d), frame_sz(%d), "
2242 "total(%d kB)\n", ioc->name, ioc->hba_queue_depth,
2243 ioc->chains_needed_per_io, ioc->request_sz, sz/1024);
2244 if (ioc->scsiio_depth < MPT2SAS_SAS_QUEUE_DEPTH)
2247 ioc->hba_queue_depth = max_request_credit - retry_sz;
2248 goto retry_allocation;
2252 printk(MPT2SAS_ERR_FMT "request pool: pci_alloc_consistent "
2253 "succeed: hba_depth(%d), chains_per_io(%d), frame_sz(%d), "
2254 "total(%d kb)\n", ioc->name, ioc->hba_queue_depth,
2255 ioc->chains_needed_per_io, ioc->request_sz, sz/1024);
2258 /* hi-priority queue */
2259 ioc->hi_priority = ioc->request + ((ioc->scsiio_depth + 1) *
2261 ioc->hi_priority_dma = ioc->request_dma + ((ioc->scsiio_depth + 1) *
2264 /* internal queue */
2265 ioc->internal = ioc->hi_priority + (ioc->hi_priority_depth *
2267 ioc->internal_dma = ioc->hi_priority_dma + (ioc->hi_priority_depth *
2271 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "request pool(0x%p): "
2272 "depth(%d), frame_size(%d), pool_size(%d kB)\n", ioc->name,
2273 ioc->request, ioc->hba_queue_depth, ioc->request_sz,
2274 (ioc->hba_queue_depth * ioc->request_sz)/1024));
2275 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "request pool: dma(0x%llx)\n",
2276 ioc->name, (unsigned long long) ioc->request_dma));
2279 sz = ioc->scsiio_depth * sizeof(struct scsiio_tracker);
2280 ioc->scsi_lookup_pages = get_order(sz);
2281 ioc->scsi_lookup = (struct scsiio_tracker *)__get_free_pages(
2282 GFP_KERNEL, ioc->scsi_lookup_pages);
2283 if (!ioc->scsi_lookup) {
2284 printk(MPT2SAS_ERR_FMT "scsi_lookup: get_free_pages failed, "
2285 "sz(%d)\n", ioc->name, (int)sz);
2289 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scsiio(0x%p): "
2290 "depth(%d)\n", ioc->name, ioc->request,
2291 ioc->scsiio_depth));
2293 /* loop till the allocation succeeds */
2295 sz = ioc->chain_depth * sizeof(struct chain_tracker);
2296 ioc->chain_pages = get_order(sz);
2297 ioc->chain_lookup = (struct chain_tracker *)__get_free_pages(
2298 GFP_KERNEL, ioc->chain_pages);
2299 if (ioc->chain_lookup == NULL)
2300 ioc->chain_depth -= 100;
2301 } while (ioc->chain_lookup == NULL);
2302 ioc->chain_dma_pool = pci_pool_create("chain pool", ioc->pdev,
2303 ioc->request_sz, 16, 0);
2304 if (!ioc->chain_dma_pool) {
2305 printk(MPT2SAS_ERR_FMT "chain_dma_pool: pci_pool_create "
2306 "failed\n", ioc->name);
2309 for (i = 0; i < ioc->chain_depth; i++) {
2310 ioc->chain_lookup[i].chain_buffer = pci_pool_alloc(
2311 ioc->chain_dma_pool , GFP_KERNEL,
2312 &ioc->chain_lookup[i].chain_buffer_dma);
2313 if (!ioc->chain_lookup[i].chain_buffer) {
2314 ioc->chain_depth = i;
2317 total_sz += ioc->request_sz;
2320 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "chain pool depth"
2321 "(%d), frame_size(%d), pool_size(%d kB)\n", ioc->name,
2322 ioc->chain_depth, ioc->request_sz, ((ioc->chain_depth *
2323 ioc->request_sz))/1024));
2325 /* initialize hi-priority queue smid's */
2326 ioc->hpr_lookup = kcalloc(ioc->hi_priority_depth,
2327 sizeof(struct request_tracker), GFP_KERNEL);
2328 if (!ioc->hpr_lookup) {
2329 printk(MPT2SAS_ERR_FMT "hpr_lookup: kcalloc failed\n",
2333 ioc->hi_priority_smid = ioc->scsiio_depth + 1;
2334 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "hi_priority(0x%p): "
2335 "depth(%d), start smid(%d)\n", ioc->name, ioc->hi_priority,
2336 ioc->hi_priority_depth, ioc->hi_priority_smid));
2338 /* initialize internal queue smid's */
2339 ioc->internal_lookup = kcalloc(ioc->internal_depth,
2340 sizeof(struct request_tracker), GFP_KERNEL);
2341 if (!ioc->internal_lookup) {
2342 printk(MPT2SAS_ERR_FMT "internal_lookup: kcalloc failed\n",
2346 ioc->internal_smid = ioc->hi_priority_smid + ioc->hi_priority_depth;
2347 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "internal(0x%p): "
2348 "depth(%d), start smid(%d)\n", ioc->name, ioc->internal,
2349 ioc->internal_depth, ioc->internal_smid));
2351 /* sense buffers, 4 byte align */
2352 sz = ioc->scsiio_depth * SCSI_SENSE_BUFFERSIZE;
2353 ioc->sense_dma_pool = pci_pool_create("sense pool", ioc->pdev, sz, 4,
2355 if (!ioc->sense_dma_pool) {
2356 printk(MPT2SAS_ERR_FMT "sense pool: pci_pool_create failed\n",
2360 ioc->sense = pci_pool_alloc(ioc->sense_dma_pool , GFP_KERNEL,
2363 printk(MPT2SAS_ERR_FMT "sense pool: pci_pool_alloc failed\n",
2367 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
2368 "sense pool(0x%p): depth(%d), element_size(%d), pool_size"
2369 "(%d kB)\n", ioc->name, ioc->sense, ioc->scsiio_depth,
2370 SCSI_SENSE_BUFFERSIZE, sz/1024));
2371 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "sense_dma(0x%llx)\n",
2372 ioc->name, (unsigned long long)ioc->sense_dma));
2375 /* reply pool, 4 byte align */
2376 sz = ioc->reply_free_queue_depth * ioc->reply_sz;
2377 ioc->reply_dma_pool = pci_pool_create("reply pool", ioc->pdev, sz, 4,
2379 if (!ioc->reply_dma_pool) {
2380 printk(MPT2SAS_ERR_FMT "reply pool: pci_pool_create failed\n",
2384 ioc->reply = pci_pool_alloc(ioc->reply_dma_pool , GFP_KERNEL,
2387 printk(MPT2SAS_ERR_FMT "reply pool: pci_pool_alloc failed\n",
2391 ioc->reply_dma_min_address = (u32)(ioc->reply_dma);
2392 ioc->reply_dma_max_address = (u32)(ioc->reply_dma) + sz;
2393 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply pool(0x%p): depth"
2394 "(%d), frame_size(%d), pool_size(%d kB)\n", ioc->name, ioc->reply,
2395 ioc->reply_free_queue_depth, ioc->reply_sz, sz/1024));
2396 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_dma(0x%llx)\n",
2397 ioc->name, (unsigned long long)ioc->reply_dma));
2400 /* reply free queue, 16 byte align */
2401 sz = ioc->reply_free_queue_depth * 4;
2402 ioc->reply_free_dma_pool = pci_pool_create("reply_free pool",
2403 ioc->pdev, sz, 16, 0);
2404 if (!ioc->reply_free_dma_pool) {
2405 printk(MPT2SAS_ERR_FMT "reply_free pool: pci_pool_create "
2406 "failed\n", ioc->name);
2409 ioc->reply_free = pci_pool_alloc(ioc->reply_free_dma_pool , GFP_KERNEL,
2410 &ioc->reply_free_dma);
2411 if (!ioc->reply_free) {
2412 printk(MPT2SAS_ERR_FMT "reply_free pool: pci_pool_alloc "
2413 "failed\n", ioc->name);
2416 memset(ioc->reply_free, 0, sz);
2417 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_free pool(0x%p): "
2418 "depth(%d), element_size(%d), pool_size(%d kB)\n", ioc->name,
2419 ioc->reply_free, ioc->reply_free_queue_depth, 4, sz/1024));
2420 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_free_dma"
2421 "(0x%llx)\n", ioc->name, (unsigned long long)ioc->reply_free_dma));
2424 /* reply post queue, 16 byte align */
2425 sz = ioc->reply_post_queue_depth * sizeof(Mpi2DefaultReplyDescriptor_t);
2426 ioc->reply_post_free_dma_pool = pci_pool_create("reply_post_free pool",
2427 ioc->pdev, sz, 16, 0);
2428 if (!ioc->reply_post_free_dma_pool) {
2429 printk(MPT2SAS_ERR_FMT "reply_post_free pool: pci_pool_create "
2430 "failed\n", ioc->name);
2433 ioc->reply_post_free = pci_pool_alloc(ioc->reply_post_free_dma_pool ,
2434 GFP_KERNEL, &ioc->reply_post_free_dma);
2435 if (!ioc->reply_post_free) {
2436 printk(MPT2SAS_ERR_FMT "reply_post_free pool: pci_pool_alloc "
2437 "failed\n", ioc->name);
2440 memset(ioc->reply_post_free, 0, sz);
2441 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply post free pool"
2442 "(0x%p): depth(%d), element_size(%d), pool_size(%d kB)\n",
2443 ioc->name, ioc->reply_post_free, ioc->reply_post_queue_depth, 8,
2445 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_post_free_dma = "
2446 "(0x%llx)\n", ioc->name, (unsigned long long)
2447 ioc->reply_post_free_dma));
2450 ioc->config_page_sz = 512;
2451 ioc->config_page = pci_alloc_consistent(ioc->pdev,
2452 ioc->config_page_sz, &ioc->config_page_dma);
2453 if (!ioc->config_page) {
2454 printk(MPT2SAS_ERR_FMT "config page: pci_pool_alloc "
2455 "failed\n", ioc->name);
2458 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "config page(0x%p): size"
2459 "(%d)\n", ioc->name, ioc->config_page, ioc->config_page_sz));
2460 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "config_page_dma"
2461 "(0x%llx)\n", ioc->name, (unsigned long long)ioc->config_page_dma));
2462 total_sz += ioc->config_page_sz;
2464 printk(MPT2SAS_INFO_FMT "Allocated physical memory: size(%d kB)\n",
2465 ioc->name, total_sz/1024);
2466 printk(MPT2SAS_INFO_FMT "Current Controller Queue Depth(%d), "
2467 "Max Controller Queue Depth(%d)\n",
2468 ioc->name, ioc->shost->can_queue, facts->RequestCredit);
2469 printk(MPT2SAS_INFO_FMT "Scatter Gather Elements per IO(%d)\n",
2470 ioc->name, ioc->shost->sg_tablesize);
2479 * mpt2sas_base_get_iocstate - Get the current state of a MPT adapter.
2480 * @ioc: Pointer to MPT_ADAPTER structure
2481 * @cooked: Request raw or cooked IOC state
2483 * Returns all IOC Doorbell register bits if cooked==0, else just the
2484 * Doorbell bits in MPI_IOC_STATE_MASK.
2487 mpt2sas_base_get_iocstate(struct MPT2SAS_ADAPTER *ioc, int cooked)
2491 s = readl(&ioc->chip->Doorbell);
2492 sc = s & MPI2_IOC_STATE_MASK;
2493 return cooked ? sc : s;
2497 * _base_wait_on_iocstate - waiting on a particular ioc state
2498 * @ioc_state: controller state { READY, OPERATIONAL, or RESET }
2499 * @timeout: timeout in second
2500 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2502 * Returns 0 for success, non-zero for failure.
2505 _base_wait_on_iocstate(struct MPT2SAS_ADAPTER *ioc, u32 ioc_state, int timeout,
2512 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
2514 current_state = mpt2sas_base_get_iocstate(ioc, 1);
2515 if (current_state == ioc_state)
2517 if (count && current_state == MPI2_IOC_STATE_FAULT)
2519 if (sleep_flag == CAN_SLEEP)
2526 return current_state;
2530 * _base_wait_for_doorbell_int - waiting for controller interrupt(generated by
2531 * a write to the doorbell)
2532 * @ioc: per adapter object
2533 * @timeout: timeout in second
2534 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2536 * Returns 0 for success, non-zero for failure.
2538 * Notes: MPI2_HIS_IOC2SYS_DB_STATUS - set to one when IOC writes to doorbell.
2541 _base_wait_for_doorbell_int(struct MPT2SAS_ADAPTER *ioc, int timeout,
2548 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
2550 int_status = readl(&ioc->chip->HostInterruptStatus);
2551 if (int_status & MPI2_HIS_IOC2SYS_DB_STATUS) {
2552 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
2553 "successfull count(%d), timeout(%d)\n", ioc->name,
2554 __func__, count, timeout));
2557 if (sleep_flag == CAN_SLEEP)
2564 printk(MPT2SAS_ERR_FMT "%s: failed due to timeout count(%d), "
2565 "int_status(%x)!\n", ioc->name, __func__, count, int_status);
2570 * _base_wait_for_doorbell_ack - waiting for controller to read the doorbell.
2571 * @ioc: per adapter object
2572 * @timeout: timeout in second
2573 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2575 * Returns 0 for success, non-zero for failure.
2577 * Notes: MPI2_HIS_SYS2IOC_DB_STATUS - set to one when host writes to
2581 _base_wait_for_doorbell_ack(struct MPT2SAS_ADAPTER *ioc, int timeout,
2589 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
2591 int_status = readl(&ioc->chip->HostInterruptStatus);
2592 if (!(int_status & MPI2_HIS_SYS2IOC_DB_STATUS)) {
2593 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
2594 "successfull count(%d), timeout(%d)\n", ioc->name,
2595 __func__, count, timeout));
2597 } else if (int_status & MPI2_HIS_IOC2SYS_DB_STATUS) {
2598 doorbell = readl(&ioc->chip->Doorbell);
2599 if ((doorbell & MPI2_IOC_STATE_MASK) ==
2600 MPI2_IOC_STATE_FAULT) {
2601 mpt2sas_base_fault_info(ioc , doorbell);
2604 } else if (int_status == 0xFFFFFFFF)
2607 if (sleep_flag == CAN_SLEEP)
2615 printk(MPT2SAS_ERR_FMT "%s: failed due to timeout count(%d), "
2616 "int_status(%x)!\n", ioc->name, __func__, count, int_status);
2621 * _base_wait_for_doorbell_not_used - waiting for doorbell to not be in use
2622 * @ioc: per adapter object
2623 * @timeout: timeout in second
2624 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2626 * Returns 0 for success, non-zero for failure.
2630 _base_wait_for_doorbell_not_used(struct MPT2SAS_ADAPTER *ioc, int timeout,
2637 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
2639 doorbell_reg = readl(&ioc->chip->Doorbell);
2640 if (!(doorbell_reg & MPI2_DOORBELL_USED)) {
2641 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
2642 "successfull count(%d), timeout(%d)\n", ioc->name,
2643 __func__, count, timeout));
2646 if (sleep_flag == CAN_SLEEP)
2653 printk(MPT2SAS_ERR_FMT "%s: failed due to timeout count(%d), "
2654 "doorbell_reg(%x)!\n", ioc->name, __func__, count, doorbell_reg);
2659 * _base_send_ioc_reset - send doorbell reset
2660 * @ioc: per adapter object
2661 * @reset_type: currently only supports: MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET
2662 * @timeout: timeout in second
2663 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2665 * Returns 0 for success, non-zero for failure.
2668 _base_send_ioc_reset(struct MPT2SAS_ADAPTER *ioc, u8 reset_type, int timeout,
2674 if (reset_type != MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET) {
2675 printk(MPT2SAS_ERR_FMT "%s: unknown reset_type\n",
2676 ioc->name, __func__);
2680 if (!(ioc->facts.IOCCapabilities &
2681 MPI2_IOCFACTS_CAPABILITY_EVENT_REPLAY))
2684 printk(MPT2SAS_INFO_FMT "sending message unit reset !!\n", ioc->name);
2686 writel(reset_type << MPI2_DOORBELL_FUNCTION_SHIFT,
2687 &ioc->chip->Doorbell);
2688 if ((_base_wait_for_doorbell_ack(ioc, 15, sleep_flag))) {
2692 ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY,
2693 timeout, sleep_flag);
2695 printk(MPT2SAS_ERR_FMT "%s: failed going to ready state "
2696 " (ioc_state=0x%x)\n", ioc->name, __func__, ioc_state);
2701 printk(MPT2SAS_INFO_FMT "message unit reset: %s\n",
2702 ioc->name, ((r == 0) ? "SUCCESS" : "FAILED"));
2707 * _base_handshake_req_reply_wait - send request thru doorbell interface
2708 * @ioc: per adapter object
2709 * @request_bytes: request length
2710 * @request: pointer having request payload
2711 * @reply_bytes: reply length
2712 * @reply: pointer to reply payload
2713 * @timeout: timeout in second
2714 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2716 * Returns 0 for success, non-zero for failure.
2719 _base_handshake_req_reply_wait(struct MPT2SAS_ADAPTER *ioc, int request_bytes,
2720 u32 *request, int reply_bytes, u16 *reply, int timeout, int sleep_flag)
2722 MPI2DefaultReply_t *default_reply = (MPI2DefaultReply_t *)reply;
2728 /* make sure doorbell is not in use */
2729 if ((readl(&ioc->chip->Doorbell) & MPI2_DOORBELL_USED)) {
2730 printk(MPT2SAS_ERR_FMT "doorbell is in use "
2731 " (line=%d)\n", ioc->name, __LINE__);
2735 /* clear pending doorbell interrupts from previous state changes */
2736 if (readl(&ioc->chip->HostInterruptStatus) &
2737 MPI2_HIS_IOC2SYS_DB_STATUS)
2738 writel(0, &ioc->chip->HostInterruptStatus);
2740 /* send message to ioc */
2741 writel(((MPI2_FUNCTION_HANDSHAKE<<MPI2_DOORBELL_FUNCTION_SHIFT) |
2742 ((request_bytes/4)<<MPI2_DOORBELL_ADD_DWORDS_SHIFT)),
2743 &ioc->chip->Doorbell);
2745 if ((_base_wait_for_doorbell_int(ioc, 5, NO_SLEEP))) {
2746 printk(MPT2SAS_ERR_FMT "doorbell handshake "
2747 "int failed (line=%d)\n", ioc->name, __LINE__);
2750 writel(0, &ioc->chip->HostInterruptStatus);
2752 if ((_base_wait_for_doorbell_ack(ioc, 5, sleep_flag))) {
2753 printk(MPT2SAS_ERR_FMT "doorbell handshake "
2754 "ack failed (line=%d)\n", ioc->name, __LINE__);
2758 /* send message 32-bits at a time */
2759 for (i = 0, failed = 0; i < request_bytes/4 && !failed; i++) {
2760 writel(cpu_to_le32(request[i]), &ioc->chip->Doorbell);
2761 if ((_base_wait_for_doorbell_ack(ioc, 5, sleep_flag)))
2766 printk(MPT2SAS_ERR_FMT "doorbell handshake "
2767 "sending request failed (line=%d)\n", ioc->name, __LINE__);
2771 /* now wait for the reply */
2772 if ((_base_wait_for_doorbell_int(ioc, timeout, sleep_flag))) {
2773 printk(MPT2SAS_ERR_FMT "doorbell handshake "
2774 "int failed (line=%d)\n", ioc->name, __LINE__);
2778 /* read the first two 16-bits, it gives the total length of the reply */
2779 reply[0] = le16_to_cpu(readl(&ioc->chip->Doorbell)
2780 & MPI2_DOORBELL_DATA_MASK);
2781 writel(0, &ioc->chip->HostInterruptStatus);
2782 if ((_base_wait_for_doorbell_int(ioc, 5, sleep_flag))) {
2783 printk(MPT2SAS_ERR_FMT "doorbell handshake "
2784 "int failed (line=%d)\n", ioc->name, __LINE__);
2787 reply[1] = le16_to_cpu(readl(&ioc->chip->Doorbell)
2788 & MPI2_DOORBELL_DATA_MASK);
2789 writel(0, &ioc->chip->HostInterruptStatus);
2791 for (i = 2; i < default_reply->MsgLength * 2; i++) {
2792 if ((_base_wait_for_doorbell_int(ioc, 5, sleep_flag))) {
2793 printk(MPT2SAS_ERR_FMT "doorbell "
2794 "handshake int failed (line=%d)\n", ioc->name,
2798 if (i >= reply_bytes/2) /* overflow case */
2799 dummy = readl(&ioc->chip->Doorbell);
2801 reply[i] = le16_to_cpu(readl(&ioc->chip->Doorbell)
2802 & MPI2_DOORBELL_DATA_MASK);
2803 writel(0, &ioc->chip->HostInterruptStatus);
2806 _base_wait_for_doorbell_int(ioc, 5, sleep_flag);
2807 if (_base_wait_for_doorbell_not_used(ioc, 5, sleep_flag) != 0) {
2808 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "doorbell is in use "
2809 " (line=%d)\n", ioc->name, __LINE__));
2811 writel(0, &ioc->chip->HostInterruptStatus);
2813 if (ioc->logging_level & MPT_DEBUG_INIT) {
2815 printk(KERN_INFO "\toffset:data\n");
2816 for (i = 0; i < reply_bytes/4; i++)
2817 printk(KERN_INFO "\t[0x%02x]:%08x\n", i*4,
2818 le32_to_cpu(mfp[i]));
2824 * mpt2sas_base_sas_iounit_control - send sas iounit control to FW
2825 * @ioc: per adapter object
2826 * @mpi_reply: the reply payload from FW
2827 * @mpi_request: the request payload sent to FW
2829 * The SAS IO Unit Control Request message allows the host to perform low-level
2830 * operations, such as resets on the PHYs of the IO Unit, also allows the host
2831 * to obtain the IOC assigned device handles for a device if it has other
2832 * identifying information about the device, in addition allows the host to
2833 * remove IOC resources associated with the device.
2835 * Returns 0 for success, non-zero for failure.
2838 mpt2sas_base_sas_iounit_control(struct MPT2SAS_ADAPTER *ioc,
2839 Mpi2SasIoUnitControlReply_t *mpi_reply,
2840 Mpi2SasIoUnitControlRequest_t *mpi_request)
2844 unsigned long timeleft;
2848 u16 wait_state_count;
2850 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
2853 mutex_lock(&ioc->base_cmds.mutex);
2855 if (ioc->base_cmds.status != MPT2_CMD_NOT_USED) {
2856 printk(MPT2SAS_ERR_FMT "%s: base_cmd in use\n",
2857 ioc->name, __func__);
2862 wait_state_count = 0;
2863 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
2864 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
2865 if (wait_state_count++ == 10) {
2866 printk(MPT2SAS_ERR_FMT
2867 "%s: failed due to ioc not operational\n",
2868 ioc->name, __func__);
2873 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
2874 printk(MPT2SAS_INFO_FMT "%s: waiting for "
2875 "operational state(count=%d)\n", ioc->name,
2876 __func__, wait_state_count);
2879 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx);
2881 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
2882 ioc->name, __func__);
2888 ioc->base_cmds.status = MPT2_CMD_PENDING;
2889 request = mpt2sas_base_get_msg_frame(ioc, smid);
2890 ioc->base_cmds.smid = smid;
2891 memcpy(request, mpi_request, sizeof(Mpi2SasIoUnitControlRequest_t));
2892 if (mpi_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET ||
2893 mpi_request->Operation == MPI2_SAS_OP_PHY_LINK_RESET)
2894 ioc->ioc_link_reset_in_progress = 1;
2895 mpt2sas_base_put_smid_default(ioc, smid);
2896 init_completion(&ioc->base_cmds.done);
2897 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done,
2898 msecs_to_jiffies(10000));
2899 if ((mpi_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET ||
2900 mpi_request->Operation == MPI2_SAS_OP_PHY_LINK_RESET) &&
2901 ioc->ioc_link_reset_in_progress)
2902 ioc->ioc_link_reset_in_progress = 0;
2903 if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) {
2904 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
2905 ioc->name, __func__);
2906 _debug_dump_mf(mpi_request,
2907 sizeof(Mpi2SasIoUnitControlRequest_t)/4);
2908 if (!(ioc->base_cmds.status & MPT2_CMD_RESET))
2910 goto issue_host_reset;
2912 if (ioc->base_cmds.status & MPT2_CMD_REPLY_VALID)
2913 memcpy(mpi_reply, ioc->base_cmds.reply,
2914 sizeof(Mpi2SasIoUnitControlReply_t));
2916 memset(mpi_reply, 0, sizeof(Mpi2SasIoUnitControlReply_t));
2917 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
2922 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2924 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
2927 mutex_unlock(&ioc->base_cmds.mutex);
2933 * mpt2sas_base_scsi_enclosure_processor - sending request to sep device
2934 * @ioc: per adapter object
2935 * @mpi_reply: the reply payload from FW
2936 * @mpi_request: the request payload sent to FW
2938 * The SCSI Enclosure Processor request message causes the IOC to
2939 * communicate with SES devices to control LED status signals.
2941 * Returns 0 for success, non-zero for failure.
2944 mpt2sas_base_scsi_enclosure_processor(struct MPT2SAS_ADAPTER *ioc,
2945 Mpi2SepReply_t *mpi_reply, Mpi2SepRequest_t *mpi_request)
2949 unsigned long timeleft;
2953 u16 wait_state_count;
2955 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
2958 mutex_lock(&ioc->base_cmds.mutex);
2960 if (ioc->base_cmds.status != MPT2_CMD_NOT_USED) {
2961 printk(MPT2SAS_ERR_FMT "%s: base_cmd in use\n",
2962 ioc->name, __func__);
2967 wait_state_count = 0;
2968 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
2969 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
2970 if (wait_state_count++ == 10) {
2971 printk(MPT2SAS_ERR_FMT
2972 "%s: failed due to ioc not operational\n",
2973 ioc->name, __func__);
2978 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
2979 printk(MPT2SAS_INFO_FMT "%s: waiting for "
2980 "operational state(count=%d)\n", ioc->name,
2981 __func__, wait_state_count);
2984 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx);
2986 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
2987 ioc->name, __func__);
2993 ioc->base_cmds.status = MPT2_CMD_PENDING;
2994 request = mpt2sas_base_get_msg_frame(ioc, smid);
2995 ioc->base_cmds.smid = smid;
2996 memcpy(request, mpi_request, sizeof(Mpi2SepReply_t));
2997 mpt2sas_base_put_smid_default(ioc, smid);
2998 init_completion(&ioc->base_cmds.done);
2999 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done,
3000 msecs_to_jiffies(10000));
3001 if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) {
3002 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
3003 ioc->name, __func__);
3004 _debug_dump_mf(mpi_request,
3005 sizeof(Mpi2SepRequest_t)/4);
3006 if (!(ioc->base_cmds.status & MPT2_CMD_RESET))
3008 goto issue_host_reset;
3010 if (ioc->base_cmds.status & MPT2_CMD_REPLY_VALID)
3011 memcpy(mpi_reply, ioc->base_cmds.reply,
3012 sizeof(Mpi2SepReply_t));
3014 memset(mpi_reply, 0, sizeof(Mpi2SepReply_t));
3015 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
3020 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
3022 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
3025 mutex_unlock(&ioc->base_cmds.mutex);
3030 * _base_get_port_facts - obtain port facts reply and save in ioc
3031 * @ioc: per adapter object
3032 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3034 * Returns 0 for success, non-zero for failure.
3037 _base_get_port_facts(struct MPT2SAS_ADAPTER *ioc, int port, int sleep_flag)
3039 Mpi2PortFactsRequest_t mpi_request;
3040 Mpi2PortFactsReply_t mpi_reply, *pfacts;
3041 int mpi_reply_sz, mpi_request_sz, r;
3043 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
3046 mpi_reply_sz = sizeof(Mpi2PortFactsReply_t);
3047 mpi_request_sz = sizeof(Mpi2PortFactsRequest_t);
3048 memset(&mpi_request, 0, mpi_request_sz);
3049 mpi_request.Function = MPI2_FUNCTION_PORT_FACTS;
3050 mpi_request.PortNumber = port;
3051 r = _base_handshake_req_reply_wait(ioc, mpi_request_sz,
3052 (u32 *)&mpi_request, mpi_reply_sz, (u16 *)&mpi_reply, 5, CAN_SLEEP);
3055 printk(MPT2SAS_ERR_FMT "%s: handshake failed (r=%d)\n",
3056 ioc->name, __func__, r);
3060 pfacts = &ioc->pfacts[port];
3061 memset(pfacts, 0, sizeof(Mpi2PortFactsReply_t));
3062 pfacts->PortNumber = mpi_reply.PortNumber;
3063 pfacts->VP_ID = mpi_reply.VP_ID;
3064 pfacts->VF_ID = mpi_reply.VF_ID;
3065 pfacts->MaxPostedCmdBuffers =
3066 le16_to_cpu(mpi_reply.MaxPostedCmdBuffers);
3072 * _base_get_ioc_facts - obtain ioc facts reply and save in ioc
3073 * @ioc: per adapter object
3074 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3076 * Returns 0 for success, non-zero for failure.
3079 _base_get_ioc_facts(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
3081 Mpi2IOCFactsRequest_t mpi_request;
3082 Mpi2IOCFactsReply_t mpi_reply, *facts;
3083 int mpi_reply_sz, mpi_request_sz, r;
3085 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
3088 mpi_reply_sz = sizeof(Mpi2IOCFactsReply_t);
3089 mpi_request_sz = sizeof(Mpi2IOCFactsRequest_t);
3090 memset(&mpi_request, 0, mpi_request_sz);
3091 mpi_request.Function = MPI2_FUNCTION_IOC_FACTS;
3092 r = _base_handshake_req_reply_wait(ioc, mpi_request_sz,
3093 (u32 *)&mpi_request, mpi_reply_sz, (u16 *)&mpi_reply, 5, CAN_SLEEP);
3096 printk(MPT2SAS_ERR_FMT "%s: handshake failed (r=%d)\n",
3097 ioc->name, __func__, r);
3101 facts = &ioc->facts;
3102 memset(facts, 0, sizeof(Mpi2IOCFactsReply_t));
3103 facts->MsgVersion = le16_to_cpu(mpi_reply.MsgVersion);
3104 facts->HeaderVersion = le16_to_cpu(mpi_reply.HeaderVersion);
3105 facts->VP_ID = mpi_reply.VP_ID;
3106 facts->VF_ID = mpi_reply.VF_ID;
3107 facts->IOCExceptions = le16_to_cpu(mpi_reply.IOCExceptions);
3108 facts->MaxChainDepth = mpi_reply.MaxChainDepth;
3109 facts->WhoInit = mpi_reply.WhoInit;
3110 facts->NumberOfPorts = mpi_reply.NumberOfPorts;
3111 facts->RequestCredit = le16_to_cpu(mpi_reply.RequestCredit);
3112 facts->MaxReplyDescriptorPostQueueDepth =
3113 le16_to_cpu(mpi_reply.MaxReplyDescriptorPostQueueDepth);
3114 facts->ProductID = le16_to_cpu(mpi_reply.ProductID);
3115 facts->IOCCapabilities = le32_to_cpu(mpi_reply.IOCCapabilities);
3116 if ((facts->IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID))
3117 ioc->ir_firmware = 1;
3118 facts->FWVersion.Word = le32_to_cpu(mpi_reply.FWVersion.Word);
3119 facts->IOCRequestFrameSize =
3120 le16_to_cpu(mpi_reply.IOCRequestFrameSize);
3121 facts->MaxInitiators = le16_to_cpu(mpi_reply.MaxInitiators);
3122 facts->MaxTargets = le16_to_cpu(mpi_reply.MaxTargets);
3123 ioc->shost->max_id = -1;
3124 facts->MaxSasExpanders = le16_to_cpu(mpi_reply.MaxSasExpanders);
3125 facts->MaxEnclosures = le16_to_cpu(mpi_reply.MaxEnclosures);
3126 facts->ProtocolFlags = le16_to_cpu(mpi_reply.ProtocolFlags);
3127 facts->HighPriorityCredit =
3128 le16_to_cpu(mpi_reply.HighPriorityCredit);
3129 facts->ReplyFrameSize = mpi_reply.ReplyFrameSize;
3130 facts->MaxDevHandle = le16_to_cpu(mpi_reply.MaxDevHandle);
3132 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "hba queue depth(%d), "
3133 "max chains per io(%d)\n", ioc->name, facts->RequestCredit,
3134 facts->MaxChainDepth));
3135 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "request frame size(%d), "
3136 "reply frame size(%d)\n", ioc->name,
3137 facts->IOCRequestFrameSize * 4, facts->ReplyFrameSize * 4));
3142 * _base_send_ioc_init - send ioc_init to firmware
3143 * @ioc: per adapter object
3144 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3146 * Returns 0 for success, non-zero for failure.
3149 _base_send_ioc_init(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
3151 Mpi2IOCInitRequest_t mpi_request;
3152 Mpi2IOCInitReply_t mpi_reply;
3154 struct timeval current_time;
3157 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
3160 memset(&mpi_request, 0, sizeof(Mpi2IOCInitRequest_t));
3161 mpi_request.Function = MPI2_FUNCTION_IOC_INIT;
3162 mpi_request.WhoInit = MPI2_WHOINIT_HOST_DRIVER;
3163 mpi_request.VF_ID = 0; /* TODO */
3164 mpi_request.VP_ID = 0;
3165 mpi_request.MsgVersion = cpu_to_le16(MPI2_VERSION);
3166 mpi_request.HeaderVersion = cpu_to_le16(MPI2_HEADER_VERSION);
3168 /* In MPI Revision I (0xA), the SystemReplyFrameSize(offset 0x18) was
3169 * removed and made reserved. For those with older firmware will need
3170 * this fix. It was decided that the Reply and Request frame sizes are
3173 if ((ioc->facts.HeaderVersion >> 8) < 0xA) {
3174 mpi_request.Reserved7 = cpu_to_le16(ioc->reply_sz);
3175 /* mpi_request.SystemReplyFrameSize =
3176 * cpu_to_le16(ioc->reply_sz);
3180 mpi_request.SystemRequestFrameSize = cpu_to_le16(ioc->request_sz/4);
3181 mpi_request.ReplyDescriptorPostQueueDepth =
3182 cpu_to_le16(ioc->reply_post_queue_depth);
3183 mpi_request.ReplyFreeQueueDepth =
3184 cpu_to_le16(ioc->reply_free_queue_depth);
3186 #if BITS_PER_LONG > 32
3187 mpi_request.SenseBufferAddressHigh =
3188 cpu_to_le32(ioc->sense_dma >> 32);
3189 mpi_request.SystemReplyAddressHigh =
3190 cpu_to_le32(ioc->reply_dma >> 32);
3191 mpi_request.SystemRequestFrameBaseAddress =
3192 cpu_to_le64(ioc->request_dma);
3193 mpi_request.ReplyFreeQueueAddress =
3194 cpu_to_le64(ioc->reply_free_dma);
3195 mpi_request.ReplyDescriptorPostQueueAddress =
3196 cpu_to_le64(ioc->reply_post_free_dma);
3198 mpi_request.SystemRequestFrameBaseAddress =
3199 cpu_to_le32(ioc->request_dma);
3200 mpi_request.ReplyFreeQueueAddress =
3201 cpu_to_le32(ioc->reply_free_dma);
3202 mpi_request.ReplyDescriptorPostQueueAddress =
3203 cpu_to_le32(ioc->reply_post_free_dma);
3206 /* This time stamp specifies number of milliseconds
3207 * since epoch ~ midnight January 1, 1970.
3209 do_gettimeofday(¤t_time);
3210 mpi_request.TimeStamp = cpu_to_le64((u64)current_time.tv_sec * 1000 +
3211 (current_time.tv_usec / 1000));
3213 if (ioc->logging_level & MPT_DEBUG_INIT) {
3217 mfp = (u32 *)&mpi_request;
3218 printk(KERN_INFO "\toffset:data\n");
3219 for (i = 0; i < sizeof(Mpi2IOCInitRequest_t)/4; i++)
3220 printk(KERN_INFO "\t[0x%02x]:%08x\n", i*4,
3221 le32_to_cpu(mfp[i]));
3224 r = _base_handshake_req_reply_wait(ioc,
3225 sizeof(Mpi2IOCInitRequest_t), (u32 *)&mpi_request,
3226 sizeof(Mpi2IOCInitReply_t), (u16 *)&mpi_reply, 10,
3230 printk(MPT2SAS_ERR_FMT "%s: handshake failed (r=%d)\n",
3231 ioc->name, __func__, r);
3235 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
3236 if (ioc_status != MPI2_IOCSTATUS_SUCCESS ||
3237 mpi_reply.IOCLogInfo) {
3238 printk(MPT2SAS_ERR_FMT "%s: failed\n", ioc->name, __func__);
3246 * _base_send_port_enable - send port_enable(discovery stuff) to firmware
3247 * @ioc: per adapter object
3248 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3250 * Returns 0 for success, non-zero for failure.
3253 _base_send_port_enable(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
3255 Mpi2PortEnableRequest_t *mpi_request;
3257 unsigned long timeleft;
3261 printk(MPT2SAS_INFO_FMT "sending port enable !!\n", ioc->name);
3263 if (ioc->base_cmds.status & MPT2_CMD_PENDING) {
3264 printk(MPT2SAS_ERR_FMT "%s: internal command already in use\n",
3265 ioc->name, __func__);
3269 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx);
3271 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
3272 ioc->name, __func__);
3276 ioc->base_cmds.status = MPT2_CMD_PENDING;
3277 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3278 ioc->base_cmds.smid = smid;
3279 memset(mpi_request, 0, sizeof(Mpi2PortEnableRequest_t));
3280 mpi_request->Function = MPI2_FUNCTION_PORT_ENABLE;
3281 mpi_request->VF_ID = 0; /* TODO */
3282 mpi_request->VP_ID = 0;
3284 mpt2sas_base_put_smid_default(ioc, smid);
3285 init_completion(&ioc->base_cmds.done);
3286 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done,
3288 if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) {
3289 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
3290 ioc->name, __func__);
3291 _debug_dump_mf(mpi_request,
3292 sizeof(Mpi2PortEnableRequest_t)/4);
3293 if (ioc->base_cmds.status & MPT2_CMD_RESET)
3299 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: complete\n",
3300 ioc->name, __func__));
3302 ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_OPERATIONAL,
3305 printk(MPT2SAS_ERR_FMT "%s: failed going to operational state "
3306 " (ioc_state=0x%x)\n", ioc->name, __func__, ioc_state);
3310 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
3311 printk(MPT2SAS_INFO_FMT "port enable: %s\n",
3312 ioc->name, ((r == 0) ? "SUCCESS" : "FAILED"));
3317 * _base_unmask_events - turn on notification for this event
3318 * @ioc: per adapter object
3319 * @event: firmware event
3321 * The mask is stored in ioc->event_masks.
3324 _base_unmask_events(struct MPT2SAS_ADAPTER *ioc, u16 event)
3331 desired_event = (1 << (event % 32));
3334 ioc->event_masks[0] &= ~desired_event;
3335 else if (event < 64)
3336 ioc->event_masks[1] &= ~desired_event;
3337 else if (event < 96)
3338 ioc->event_masks[2] &= ~desired_event;
3339 else if (event < 128)
3340 ioc->event_masks[3] &= ~desired_event;
3344 * _base_event_notification - send event notification
3345 * @ioc: per adapter object
3346 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3348 * Returns 0 for success, non-zero for failure.
3351 _base_event_notification(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
3353 Mpi2EventNotificationRequest_t *mpi_request;
3354 unsigned long timeleft;
3359 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
3362 if (ioc->base_cmds.status & MPT2_CMD_PENDING) {
3363 printk(MPT2SAS_ERR_FMT "%s: internal command already in use\n",
3364 ioc->name, __func__);
3368 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx);
3370 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
3371 ioc->name, __func__);
3374 ioc->base_cmds.status = MPT2_CMD_PENDING;
3375 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3376 ioc->base_cmds.smid = smid;
3377 memset(mpi_request, 0, sizeof(Mpi2EventNotificationRequest_t));
3378 mpi_request->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
3379 mpi_request->VF_ID = 0; /* TODO */
3380 mpi_request->VP_ID = 0;
3381 for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++)
3382 mpi_request->EventMasks[i] =
3383 cpu_to_le32(ioc->event_masks[i]);
3384 mpt2sas_base_put_smid_default(ioc, smid);
3385 init_completion(&ioc->base_cmds.done);
3386 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done, 30*HZ);
3387 if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) {
3388 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
3389 ioc->name, __func__);
3390 _debug_dump_mf(mpi_request,
3391 sizeof(Mpi2EventNotificationRequest_t)/4);
3392 if (ioc->base_cmds.status & MPT2_CMD_RESET)
3397 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: complete\n",
3398 ioc->name, __func__));
3399 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
3404 * mpt2sas_base_validate_event_type - validating event types
3405 * @ioc: per adapter object
3406 * @event: firmware event
3408 * This will turn on firmware event notification when application
3409 * ask for that event. We don't mask events that are already enabled.
3412 mpt2sas_base_validate_event_type(struct MPT2SAS_ADAPTER *ioc, u32 *event_type)
3415 u32 event_mask, desired_event;
3416 u8 send_update_to_fw;
3418 for (i = 0, send_update_to_fw = 0; i <
3419 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++) {
3420 event_mask = ~event_type[i];
3422 for (j = 0; j < 32; j++) {
3423 if (!(event_mask & desired_event) &&
3424 (ioc->event_masks[i] & desired_event)) {
3425 ioc->event_masks[i] &= ~desired_event;
3426 send_update_to_fw = 1;
3428 desired_event = (desired_event << 1);
3432 if (!send_update_to_fw)
3435 mutex_lock(&ioc->base_cmds.mutex);
3436 _base_event_notification(ioc, CAN_SLEEP);
3437 mutex_unlock(&ioc->base_cmds.mutex);
3441 * _base_diag_reset - the "big hammer" start of day reset
3442 * @ioc: per adapter object
3443 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3445 * Returns 0 for success, non-zero for failure.
3448 _base_diag_reset(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
3450 u32 host_diagnostic;
3455 printk(MPT2SAS_INFO_FMT "sending diag reset !!\n", ioc->name);
3457 _base_save_msix_table(ioc);
3459 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "clear interrupts\n",
3464 /* Write magic sequence to WriteSequence register
3465 * Loop until in diagnostic mode
3467 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "write magic "
3468 "sequence\n", ioc->name));
3469 writel(MPI2_WRSEQ_FLUSH_KEY_VALUE, &ioc->chip->WriteSequence);
3470 writel(MPI2_WRSEQ_1ST_KEY_VALUE, &ioc->chip->WriteSequence);
3471 writel(MPI2_WRSEQ_2ND_KEY_VALUE, &ioc->chip->WriteSequence);
3472 writel(MPI2_WRSEQ_3RD_KEY_VALUE, &ioc->chip->WriteSequence);
3473 writel(MPI2_WRSEQ_4TH_KEY_VALUE, &ioc->chip->WriteSequence);
3474 writel(MPI2_WRSEQ_5TH_KEY_VALUE, &ioc->chip->WriteSequence);
3475 writel(MPI2_WRSEQ_6TH_KEY_VALUE, &ioc->chip->WriteSequence);
3478 if (sleep_flag == CAN_SLEEP)
3486 host_diagnostic = readl(&ioc->chip->HostDiagnostic);
3487 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "wrote magic "
3488 "sequence: count(%d), host_diagnostic(0x%08x)\n",
3489 ioc->name, count, host_diagnostic));
3491 } while ((host_diagnostic & MPI2_DIAG_DIAG_WRITE_ENABLE) == 0);
3493 hcb_size = readl(&ioc->chip->HCBSize);
3495 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "diag reset: issued\n",
3497 writel(host_diagnostic | MPI2_DIAG_RESET_ADAPTER,
3498 &ioc->chip->HostDiagnostic);
3500 /* don't access any registers for 50 milliseconds */
3503 /* 300 second max wait */
3504 for (count = 0; count < 3000000 ; count++) {
3506 host_diagnostic = readl(&ioc->chip->HostDiagnostic);
3508 if (host_diagnostic == 0xFFFFFFFF)
3510 if (!(host_diagnostic & MPI2_DIAG_RESET_ADAPTER))
3514 if (sleep_flag == CAN_SLEEP)
3520 if (host_diagnostic & MPI2_DIAG_HCB_MODE) {
3522 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "restart the adapter "
3523 "assuming the HCB Address points to good F/W\n",
3525 host_diagnostic &= ~MPI2_DIAG_BOOT_DEVICE_SELECT_MASK;
3526 host_diagnostic |= MPI2_DIAG_BOOT_DEVICE_SELECT_HCDW;
3527 writel(host_diagnostic, &ioc->chip->HostDiagnostic);
3529 drsprintk(ioc, printk(MPT2SAS_INFO_FMT
3530 "re-enable the HCDW\n", ioc->name));
3531 writel(hcb_size | MPI2_HCB_SIZE_HCB_ENABLE,
3532 &ioc->chip->HCBSize);
3535 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "restart the adapter\n",
3537 writel(host_diagnostic & ~MPI2_DIAG_HOLD_IOC_RESET,
3538 &ioc->chip->HostDiagnostic);
3540 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "disable writes to the "
3541 "diagnostic register\n", ioc->name));
3542 writel(MPI2_WRSEQ_FLUSH_KEY_VALUE, &ioc->chip->WriteSequence);
3544 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "Wait for FW to go to the "
3545 "READY state\n", ioc->name));
3546 ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY, 20,
3549 printk(MPT2SAS_ERR_FMT "%s: failed going to ready state "
3550 " (ioc_state=0x%x)\n", ioc->name, __func__, ioc_state);
3554 _base_restore_msix_table(ioc);
3555 printk(MPT2SAS_INFO_FMT "diag reset: SUCCESS\n", ioc->name);
3559 printk(MPT2SAS_ERR_FMT "diag reset: FAILED\n", ioc->name);
3564 * _base_make_ioc_ready - put controller in READY state
3565 * @ioc: per adapter object
3566 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3567 * @type: FORCE_BIG_HAMMER or SOFT_RESET
3569 * Returns 0 for success, non-zero for failure.
3572 _base_make_ioc_ready(struct MPT2SAS_ADAPTER *ioc, int sleep_flag,
3573 enum reset_type type)
3578 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
3581 if (ioc->pci_error_recovery)
3584 ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
3585 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: ioc_state(0x%08x)\n",
3586 ioc->name, __func__, ioc_state));
3588 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_READY)
3591 if (ioc_state & MPI2_DOORBELL_USED) {
3592 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "unexpected doorbell "
3593 "active!\n", ioc->name));
3594 goto issue_diag_reset;
3597 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
3598 mpt2sas_base_fault_info(ioc, ioc_state &
3599 MPI2_DOORBELL_DATA_MASK);
3600 goto issue_diag_reset;
3603 if (type == FORCE_BIG_HAMMER)
3604 goto issue_diag_reset;
3606 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_OPERATIONAL)
3607 if (!(_base_send_ioc_reset(ioc,
3608 MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET, 15, CAN_SLEEP))) {
3609 ioc->ioc_reset_count++;
3614 rc = _base_diag_reset(ioc, CAN_SLEEP);
3615 ioc->ioc_reset_count++;
3620 * _base_make_ioc_operational - put controller in OPERATIONAL state
3621 * @ioc: per adapter object
3622 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3624 * Returns 0 for success, non-zero for failure.
3627 _base_make_ioc_operational(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
3630 unsigned long flags;
3633 struct _tr_list *delayed_tr, *delayed_tr_next;
3635 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
3638 /* clean the delayed target reset list */
3639 list_for_each_entry_safe(delayed_tr, delayed_tr_next,
3640 &ioc->delayed_tr_list, list) {
3641 list_del(&delayed_tr->list);
3645 list_for_each_entry_safe(delayed_tr, delayed_tr_next,
3646 &ioc->delayed_tr_volume_list, list) {
3647 list_del(&delayed_tr->list);
3651 /* initialize the scsi lookup free list */
3652 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
3653 INIT_LIST_HEAD(&ioc->free_list);
3655 for (i = 0; i < ioc->scsiio_depth; i++, smid++) {
3656 INIT_LIST_HEAD(&ioc->scsi_lookup[i].chain_list);
3657 ioc->scsi_lookup[i].cb_idx = 0xFF;
3658 ioc->scsi_lookup[i].smid = smid;
3659 ioc->scsi_lookup[i].scmd = NULL;
3660 list_add_tail(&ioc->scsi_lookup[i].tracker_list,
3664 /* hi-priority queue */
3665 INIT_LIST_HEAD(&ioc->hpr_free_list);
3666 smid = ioc->hi_priority_smid;
3667 for (i = 0; i < ioc->hi_priority_depth; i++, smid++) {
3668 ioc->hpr_lookup[i].cb_idx = 0xFF;
3669 ioc->hpr_lookup[i].smid = smid;
3670 list_add_tail(&ioc->hpr_lookup[i].tracker_list,
3671 &ioc->hpr_free_list);
3674 /* internal queue */
3675 INIT_LIST_HEAD(&ioc->internal_free_list);
3676 smid = ioc->internal_smid;
3677 for (i = 0; i < ioc->internal_depth; i++, smid++) {
3678 ioc->internal_lookup[i].cb_idx = 0xFF;
3679 ioc->internal_lookup[i].smid = smid;
3680 list_add_tail(&ioc->internal_lookup[i].tracker_list,
3681 &ioc->internal_free_list);
3685 INIT_LIST_HEAD(&ioc->free_chain_list);
3686 for (i = 0; i < ioc->chain_depth; i++)
3687 list_add_tail(&ioc->chain_lookup[i].tracker_list,
3688 &ioc->free_chain_list);
3690 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
3692 /* initialize Reply Free Queue */
3693 for (i = 0, reply_address = (u32)ioc->reply_dma ;
3694 i < ioc->reply_free_queue_depth ; i++, reply_address +=
3696 ioc->reply_free[i] = cpu_to_le32(reply_address);
3698 /* initialize Reply Post Free Queue */
3699 for (i = 0; i < ioc->reply_post_queue_depth; i++)
3700 ioc->reply_post_free[i].Words = ULLONG_MAX;
3702 r = _base_send_ioc_init(ioc, sleep_flag);
3706 /* initialize the index's */
3707 ioc->reply_free_host_index = ioc->reply_free_queue_depth - 1;
3708 ioc->reply_post_host_index = 0;
3709 writel(ioc->reply_free_host_index, &ioc->chip->ReplyFreeHostIndex);
3710 writel(0, &ioc->chip->ReplyPostHostIndex);
3712 _base_unmask_interrupts(ioc);
3713 r = _base_event_notification(ioc, sleep_flag);
3717 if (sleep_flag == CAN_SLEEP)
3718 _base_static_config_pages(ioc);
3720 if (ioc->wait_for_port_enable_to_complete) {
3721 if (diag_buffer_enable != 0)
3722 mpt2sas_enable_diag_buffer(ioc, diag_buffer_enable);
3723 if (disable_discovery > 0)
3727 r = _base_send_port_enable(ioc, sleep_flag);
3735 * mpt2sas_base_free_resources - free resources controller resources (io/irq/memap)
3736 * @ioc: per adapter object
3741 mpt2sas_base_free_resources(struct MPT2SAS_ADAPTER *ioc)
3743 struct pci_dev *pdev = ioc->pdev;
3745 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
3748 _base_mask_interrupts(ioc);
3749 ioc->shost_recovery = 1;
3750 _base_make_ioc_ready(ioc, CAN_SLEEP, SOFT_RESET);
3751 ioc->shost_recovery = 0;
3753 synchronize_irq(pdev->irq);
3754 free_irq(ioc->pci_irq, ioc);
3756 _base_disable_msix(ioc);
3761 pci_release_selected_regions(ioc->pdev, ioc->bars);
3762 pci_disable_pcie_error_reporting(pdev);
3763 pci_disable_device(pdev);
3768 * mpt2sas_base_attach - attach controller instance
3769 * @ioc: per adapter object
3771 * Returns 0 for success, non-zero for failure.
3774 mpt2sas_base_attach(struct MPT2SAS_ADAPTER *ioc)
3778 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
3781 r = mpt2sas_base_map_resources(ioc);
3785 pci_set_drvdata(ioc->pdev, ioc->shost);
3786 r = _base_get_ioc_facts(ioc, CAN_SLEEP);
3788 goto out_free_resources;
3790 r = _base_make_ioc_ready(ioc, CAN_SLEEP, SOFT_RESET);
3792 goto out_free_resources;
3794 ioc->pfacts = kcalloc(ioc->facts.NumberOfPorts,
3795 sizeof(Mpi2PortFactsReply_t), GFP_KERNEL);
3798 goto out_free_resources;
3801 for (i = 0 ; i < ioc->facts.NumberOfPorts; i++) {
3802 r = _base_get_port_facts(ioc, i, CAN_SLEEP);
3804 goto out_free_resources;
3807 r = _base_allocate_memory_pools(ioc, CAN_SLEEP);
3809 goto out_free_resources;
3811 init_waitqueue_head(&ioc->reset_wq);
3813 /* allocate memory pd handle bitmask list */
3814 ioc->pd_handles_sz = (ioc->facts.MaxDevHandle / 8);
3815 if (ioc->facts.MaxDevHandle % 8)
3816 ioc->pd_handles_sz++;
3817 ioc->pd_handles = kzalloc(ioc->pd_handles_sz,
3819 if (!ioc->pd_handles) {
3821 goto out_free_resources;
3824 ioc->fwfault_debug = mpt2sas_fwfault_debug;
3826 /* base internal command bits */
3827 mutex_init(&ioc->base_cmds.mutex);
3828 ioc->base_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
3829 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
3831 /* transport internal command bits */
3832 ioc->transport_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
3833 ioc->transport_cmds.status = MPT2_CMD_NOT_USED;
3834 mutex_init(&ioc->transport_cmds.mutex);
3836 /* scsih internal command bits */
3837 ioc->scsih_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
3838 ioc->scsih_cmds.status = MPT2_CMD_NOT_USED;
3839 mutex_init(&ioc->scsih_cmds.mutex);
3841 /* task management internal command bits */
3842 ioc->tm_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
3843 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
3844 mutex_init(&ioc->tm_cmds.mutex);
3846 /* config page internal command bits */
3847 ioc->config_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
3848 ioc->config_cmds.status = MPT2_CMD_NOT_USED;
3849 mutex_init(&ioc->config_cmds.mutex);
3851 /* ctl module internal command bits */
3852 ioc->ctl_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
3853 ioc->ctl_cmds.sense = kzalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL);
3854 ioc->ctl_cmds.status = MPT2_CMD_NOT_USED;
3855 mutex_init(&ioc->ctl_cmds.mutex);
3857 if (!ioc->base_cmds.reply || !ioc->transport_cmds.reply ||
3858 !ioc->scsih_cmds.reply || !ioc->tm_cmds.reply ||
3859 !ioc->config_cmds.reply || !ioc->ctl_cmds.reply ||
3860 !ioc->ctl_cmds.sense) {
3862 goto out_free_resources;
3865 if (!ioc->base_cmds.reply || !ioc->transport_cmds.reply ||
3866 !ioc->scsih_cmds.reply || !ioc->tm_cmds.reply ||
3867 !ioc->config_cmds.reply || !ioc->ctl_cmds.reply) {
3869 goto out_free_resources;
3872 init_completion(&ioc->shost_recovery_done);
3874 for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++)
3875 ioc->event_masks[i] = -1;
3877 /* here we enable the events we care about */
3878 _base_unmask_events(ioc, MPI2_EVENT_SAS_DISCOVERY);
3879 _base_unmask_events(ioc, MPI2_EVENT_SAS_BROADCAST_PRIMITIVE);
3880 _base_unmask_events(ioc, MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST);
3881 _base_unmask_events(ioc, MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
3882 _base_unmask_events(ioc, MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE);
3883 _base_unmask_events(ioc, MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST);
3884 _base_unmask_events(ioc, MPI2_EVENT_IR_VOLUME);
3885 _base_unmask_events(ioc, MPI2_EVENT_IR_PHYSICAL_DISK);
3886 _base_unmask_events(ioc, MPI2_EVENT_IR_OPERATION_STATUS);
3887 _base_unmask_events(ioc, MPI2_EVENT_LOG_ENTRY_ADDED);
3888 r = _base_make_ioc_operational(ioc, CAN_SLEEP);
3890 goto out_free_resources;
3892 if (missing_delay[0] != -1 && missing_delay[1] != -1)
3893 _base_update_missing_delay(ioc, missing_delay[0],
3896 mpt2sas_base_start_watchdog(ioc);
3901 ioc->remove_host = 1;
3902 mpt2sas_base_free_resources(ioc);
3903 _base_release_memory_pools(ioc);
3904 pci_set_drvdata(ioc->pdev, NULL);
3905 kfree(ioc->pd_handles);
3906 kfree(ioc->tm_cmds.reply);
3907 kfree(ioc->transport_cmds.reply);
3908 kfree(ioc->scsih_cmds.reply);
3909 kfree(ioc->config_cmds.reply);
3910 kfree(ioc->base_cmds.reply);
3911 kfree(ioc->ctl_cmds.reply);
3912 kfree(ioc->ctl_cmds.sense);
3914 ioc->ctl_cmds.reply = NULL;
3915 ioc->base_cmds.reply = NULL;
3916 ioc->tm_cmds.reply = NULL;
3917 ioc->scsih_cmds.reply = NULL;
3918 ioc->transport_cmds.reply = NULL;
3919 ioc->config_cmds.reply = NULL;
3926 * mpt2sas_base_detach - remove controller instance
3927 * @ioc: per adapter object
3932 mpt2sas_base_detach(struct MPT2SAS_ADAPTER *ioc)
3935 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
3938 mpt2sas_base_stop_watchdog(ioc);
3939 mpt2sas_base_free_resources(ioc);
3940 _base_release_memory_pools(ioc);
3941 pci_set_drvdata(ioc->pdev, NULL);
3942 kfree(ioc->pd_handles);
3944 kfree(ioc->ctl_cmds.reply);
3945 kfree(ioc->ctl_cmds.sense);
3946 kfree(ioc->base_cmds.reply);
3947 kfree(ioc->tm_cmds.reply);
3948 kfree(ioc->transport_cmds.reply);
3949 kfree(ioc->scsih_cmds.reply);
3950 kfree(ioc->config_cmds.reply);
3954 * _base_reset_handler - reset callback handler (for base)
3955 * @ioc: per adapter object
3956 * @reset_phase: phase
3958 * The handler for doing any required cleanup or initialization.
3960 * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET,
3961 * MPT2_IOC_DONE_RESET
3966 _base_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
3968 mpt2sas_scsih_reset_handler(ioc, reset_phase);
3969 mpt2sas_ctl_reset_handler(ioc, reset_phase);
3970 switch (reset_phase) {
3971 case MPT2_IOC_PRE_RESET:
3972 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
3973 "MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
3975 case MPT2_IOC_AFTER_RESET:
3976 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
3977 "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
3978 if (ioc->transport_cmds.status & MPT2_CMD_PENDING) {
3979 ioc->transport_cmds.status |= MPT2_CMD_RESET;
3980 mpt2sas_base_free_smid(ioc, ioc->transport_cmds.smid);
3981 complete(&ioc->transport_cmds.done);
3983 if (ioc->base_cmds.status & MPT2_CMD_PENDING) {
3984 ioc->base_cmds.status |= MPT2_CMD_RESET;
3985 mpt2sas_base_free_smid(ioc, ioc->base_cmds.smid);
3986 complete(&ioc->base_cmds.done);
3988 if (ioc->config_cmds.status & MPT2_CMD_PENDING) {
3989 ioc->config_cmds.status |= MPT2_CMD_RESET;
3990 mpt2sas_base_free_smid(ioc, ioc->config_cmds.smid);
3991 ioc->config_cmds.smid = USHRT_MAX;
3992 complete(&ioc->config_cmds.done);
3995 case MPT2_IOC_DONE_RESET:
3996 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
3997 "MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
4003 * _wait_for_commands_to_complete - reset controller
4004 * @ioc: Pointer to MPT_ADAPTER structure
4005 * @sleep_flag: CAN_SLEEP or NO_SLEEP
4007 * This function waiting(3s) for all pending commands to complete
4008 * prior to putting controller in reset.
4011 _wait_for_commands_to_complete(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
4014 unsigned long flags;
4017 ioc->pending_io_count = 0;
4018 if (sleep_flag != CAN_SLEEP)
4021 ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
4022 if ((ioc_state & MPI2_IOC_STATE_MASK) != MPI2_IOC_STATE_OPERATIONAL)
4025 /* pending command count */
4026 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
4027 for (i = 0; i < ioc->scsiio_depth; i++)
4028 if (ioc->scsi_lookup[i].cb_idx != 0xFF)
4029 ioc->pending_io_count++;
4030 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
4032 if (!ioc->pending_io_count)
4035 /* wait for pending commands to complete */
4036 wait_event_timeout(ioc->reset_wq, ioc->pending_io_count == 0, 10 * HZ);
4040 * mpt2sas_base_hard_reset_handler - reset controller
4041 * @ioc: Pointer to MPT_ADAPTER structure
4042 * @sleep_flag: CAN_SLEEP or NO_SLEEP
4043 * @type: FORCE_BIG_HAMMER or SOFT_RESET
4045 * Returns 0 for success, non-zero for failure.
4048 mpt2sas_base_hard_reset_handler(struct MPT2SAS_ADAPTER *ioc, int sleep_flag,
4049 enum reset_type type)
4052 unsigned long flags;
4053 u8 pe_complete = ioc->wait_for_port_enable_to_complete;
4055 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name,
4058 if (ioc->pci_error_recovery) {
4059 printk(MPT2SAS_ERR_FMT "%s: pci error recovery reset\n",
4060 ioc->name, __func__);
4065 if (mpt2sas_fwfault_debug)
4066 mpt2sas_halt_firmware(ioc);
4068 /* TODO - What we really should be doing is pulling
4069 * out all the code associated with NO_SLEEP; its never used.
4070 * That is legacy code from mpt fusion driver, ported over.
4071 * I will leave this BUG_ON here for now till its been resolved.
4073 BUG_ON(sleep_flag == NO_SLEEP);
4075 /* wait for an active reset in progress to complete */
4076 if (!mutex_trylock(&ioc->reset_in_progress_mutex)) {
4079 } while (ioc->shost_recovery == 1);
4080 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit\n", ioc->name,
4082 return ioc->ioc_reset_in_progress_status;
4085 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
4086 ioc->shost_recovery = 1;
4087 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
4089 _base_reset_handler(ioc, MPT2_IOC_PRE_RESET);
4090 _wait_for_commands_to_complete(ioc, sleep_flag);
4091 _base_mask_interrupts(ioc);
4092 r = _base_make_ioc_ready(ioc, sleep_flag, type);
4095 _base_reset_handler(ioc, MPT2_IOC_AFTER_RESET);
4097 /* If this hard reset is called while port enable is active, then
4098 * there is no reason to call make_ioc_operational
4104 r = _base_make_ioc_operational(ioc, sleep_flag);
4106 _base_reset_handler(ioc, MPT2_IOC_DONE_RESET);
4108 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: %s\n",
4109 ioc->name, __func__, ((r == 0) ? "SUCCESS" : "FAILED")));
4111 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
4112 ioc->ioc_reset_in_progress_status = r;
4113 ioc->shost_recovery = 0;
4114 complete(&ioc->shost_recovery_done);
4115 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
4116 mutex_unlock(&ioc->reset_in_progress_mutex);
4118 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit\n", ioc->name,