2 * Copyright (c) 2009 Yahoo! Inc.
3 * Copyright (c) 2011-2015 LSI Corp.
4 * Copyright (c) 2013-2015 Avago Technologies
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * Avago Technologies (LSI) MPT-Fusion Host Adapter FreeBSD
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
36 /* Communications core for Avago Technologies (LSI) MPT2 */
38 /* TODO Move headers to mpsvar */
39 #include <sys/types.h>
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/kernel.h>
43 #include <sys/selinfo.h>
45 #include <sys/mutex.h>
46 #include <sys/module.h>
50 #include <sys/malloc.h>
52 #include <sys/sysctl.h>
53 #include <sys/queue.h>
54 #include <sys/kthread.h>
55 #include <sys/taskqueue.h>
56 #include <sys/endian.h>
57 #include <sys/eventhandler.h>
59 #include <machine/bus.h>
60 #include <machine/resource.h>
64 #include <dev/pci/pcivar.h>
67 #include <cam/scsi/scsi_all.h>
69 #include <dev/mps/mpi/mpi2_type.h>
70 #include <dev/mps/mpi/mpi2.h>
71 #include <dev/mps/mpi/mpi2_ioc.h>
72 #include <dev/mps/mpi/mpi2_sas.h>
73 #include <dev/mps/mpi/mpi2_cnfg.h>
74 #include <dev/mps/mpi/mpi2_init.h>
75 #include <dev/mps/mpi/mpi2_tool.h>
76 #include <dev/mps/mps_ioctl.h>
77 #include <dev/mps/mpsvar.h>
78 #include <dev/mps/mps_table.h>
80 static int mps_diag_reset(struct mps_softc *sc, int sleep_flag);
81 static int mps_init_queues(struct mps_softc *sc);
82 static int mps_message_unit_reset(struct mps_softc *sc, int sleep_flag);
83 static int mps_transition_operational(struct mps_softc *sc);
84 static int mps_iocfacts_allocate(struct mps_softc *sc, uint8_t attaching);
85 static void mps_iocfacts_free(struct mps_softc *sc);
86 static void mps_startup(void *arg);
87 static int mps_send_iocinit(struct mps_softc *sc);
88 static int mps_alloc_queues(struct mps_softc *sc);
89 static int mps_alloc_replies(struct mps_softc *sc);
90 static int mps_alloc_requests(struct mps_softc *sc);
91 static int mps_attach_log(struct mps_softc *sc);
92 static __inline void mps_complete_command(struct mps_softc *sc,
93 struct mps_command *cm);
94 static void mps_dispatch_event(struct mps_softc *sc, uintptr_t data,
95 MPI2_EVENT_NOTIFICATION_REPLY *reply);
96 static void mps_config_complete(struct mps_softc *sc, struct mps_command *cm);
97 static void mps_periodic(void *);
98 static int mps_reregister_events(struct mps_softc *sc);
99 static void mps_enqueue_request(struct mps_softc *sc, struct mps_command *cm);
100 static int mps_get_iocfacts(struct mps_softc *sc, MPI2_IOC_FACTS_REPLY *facts);
101 static int mps_wait_db_ack(struct mps_softc *sc, int timeout, int sleep_flag);
102 SYSCTL_NODE(_hw, OID_AUTO, mps, CTLFLAG_RD, 0, "MPS Driver Parameters");
104 MALLOC_DEFINE(M_MPT2, "mps", "mpt2 driver memory");
107 * Do a "Diagnostic Reset" aka a hard reset. This should get the chip out of
108 * any state and back to its initialization state machine.
110 static char mpt2_reset_magic[] = { 0x00, 0x0f, 0x04, 0x0b, 0x02, 0x07, 0x0d };
112 /* Added this union to smoothly convert le64toh cm->cm_desc.Words.
113 * Compiler only support unint64_t to be passed as argument.
114 * Otherwise it will through below error
115 * "aggregate value used where an integer was expected"
118 typedef union _reply_descriptor {
124 }reply_descriptor,address_descriptor;
126 /* Rate limit chain-fail messages to 1 per minute */
127 static struct timeval mps_chainfail_interval = { 60, 0 };
130 * sleep_flag can be either CAN_SLEEP or NO_SLEEP.
131 * If this function is called from process context, it can sleep
132 * and there is no harm to sleep, in case if this fuction is called
133 * from Interrupt handler, we can not sleep and need NO_SLEEP flag set.
134 * based on sleep flags driver will call either msleep, pause or DELAY.
135 * msleep and pause are of same variant, but pause is used when mps_mtx
136 * is not hold by driver.
140 mps_diag_reset(struct mps_softc *sc,int sleep_flag)
143 int i, error, tries = 0;
144 uint8_t first_wait_done = FALSE;
146 mps_dprint(sc, MPS_TRACE, "%s\n", __func__);
148 /* Clear any pending interrupts */
149 mps_regwrite(sc, MPI2_HOST_INTERRUPT_STATUS_OFFSET, 0x0);
151 /*Force NO_SLEEP for threads prohibited to sleep
152 * e.a Thread from interrupt handler are prohibited to sleep.
154 if (curthread->td_no_sleeping != 0)
155 sleep_flag = NO_SLEEP;
157 /* Push the magic sequence */
159 while (tries++ < 20) {
160 for (i = 0; i < sizeof(mpt2_reset_magic); i++)
161 mps_regwrite(sc, MPI2_WRITE_SEQUENCE_OFFSET,
162 mpt2_reset_magic[i]);
164 if (mtx_owned(&sc->mps_mtx) && sleep_flag == CAN_SLEEP)
165 msleep(&sc->msleep_fake_chan, &sc->mps_mtx, 0,
167 else if (sleep_flag == CAN_SLEEP)
168 pause("mpsdiag", hz/10);
172 reg = mps_regread(sc, MPI2_HOST_DIAGNOSTIC_OFFSET);
173 if (reg & MPI2_DIAG_DIAG_WRITE_ENABLE) {
181 /* Send the actual reset. XXX need to refresh the reg? */
182 mps_regwrite(sc, MPI2_HOST_DIAGNOSTIC_OFFSET,
183 reg | MPI2_DIAG_RESET_ADAPTER);
185 /* Wait up to 300 seconds in 50ms intervals */
187 for (i = 0; i < 6000; i++) {
189 * Wait 50 msec. If this is the first time through, wait 256
190 * msec to satisfy Diag Reset timing requirements.
192 if (first_wait_done) {
193 if (mtx_owned(&sc->mps_mtx) && sleep_flag == CAN_SLEEP)
194 msleep(&sc->msleep_fake_chan, &sc->mps_mtx, 0,
196 else if (sleep_flag == CAN_SLEEP)
197 pause("mpsdiag", hz/20);
202 first_wait_done = TRUE;
205 * Check for the RESET_ADAPTER bit to be cleared first, then
206 * wait for the RESET state to be cleared, which takes a little
209 reg = mps_regread(sc, MPI2_HOST_DIAGNOSTIC_OFFSET);
210 if (reg & MPI2_DIAG_RESET_ADAPTER) {
213 reg = mps_regread(sc, MPI2_DOORBELL_OFFSET);
214 if ((reg & MPI2_IOC_STATE_MASK) != MPI2_IOC_STATE_RESET) {
222 mps_regwrite(sc, MPI2_WRITE_SEQUENCE_OFFSET, 0x0);
228 mps_message_unit_reset(struct mps_softc *sc, int sleep_flag)
233 mps_regwrite(sc, MPI2_DOORBELL_OFFSET,
234 MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET <<
235 MPI2_DOORBELL_FUNCTION_SHIFT);
237 if (mps_wait_db_ack(sc, 5, sleep_flag) != 0) {
238 mps_dprint(sc, MPS_FAULT, "Doorbell handshake failed : <%s>\n",
247 mps_transition_ready(struct mps_softc *sc)
250 int error, tries = 0;
254 /* If we are in attach call, do not sleep */
255 sleep_flags = (sc->mps_flags & MPS_FLAGS_ATTACH_DONE)
256 ? CAN_SLEEP:NO_SLEEP;
258 while (tries++ < 1200) {
259 reg = mps_regread(sc, MPI2_DOORBELL_OFFSET);
260 mps_dprint(sc, MPS_INIT, "Doorbell= 0x%x\n", reg);
263 * Ensure the IOC is ready to talk. If it's not, try
266 if (reg & MPI2_DOORBELL_USED) {
267 mps_diag_reset(sc, sleep_flags);
272 /* Is the adapter owned by another peer? */
273 if ((reg & MPI2_DOORBELL_WHO_INIT_MASK) ==
274 (MPI2_WHOINIT_PCI_PEER << MPI2_DOORBELL_WHO_INIT_SHIFT)) {
275 device_printf(sc->mps_dev, "IOC is under the control "
276 "of another peer host, aborting initialization.\n");
280 state = reg & MPI2_IOC_STATE_MASK;
281 if (state == MPI2_IOC_STATE_READY) {
285 } else if (state == MPI2_IOC_STATE_FAULT) {
286 mps_dprint(sc, MPS_FAULT, "IOC in fault state 0x%x, resetting\n",
287 state & MPI2_DOORBELL_FAULT_CODE_MASK);
288 mps_diag_reset(sc, sleep_flags);
289 } else if (state == MPI2_IOC_STATE_OPERATIONAL) {
290 /* Need to take ownership */
291 mps_message_unit_reset(sc, sleep_flags);
292 } else if (state == MPI2_IOC_STATE_RESET) {
293 /* Wait a bit, IOC might be in transition */
294 mps_dprint(sc, MPS_FAULT,
295 "IOC in unexpected reset state\n");
297 mps_dprint(sc, MPS_FAULT,
298 "IOC in unknown state 0x%x\n", state);
303 /* Wait 50ms for things to settle down. */
308 device_printf(sc->mps_dev, "Cannot transition IOC to ready\n");
314 mps_transition_operational(struct mps_softc *sc)
322 reg = mps_regread(sc, MPI2_DOORBELL_OFFSET);
323 mps_dprint(sc, MPS_INIT, "Doorbell= 0x%x\n", reg);
325 state = reg & MPI2_IOC_STATE_MASK;
326 if (state != MPI2_IOC_STATE_READY) {
327 if ((error = mps_transition_ready(sc)) != 0) {
328 mps_dprint(sc, MPS_FAULT,
329 "%s failed to transition ready\n", __func__);
334 error = mps_send_iocinit(sc);
339 * This is called during attach and when re-initializing due to a Diag Reset.
340 * IOC Facts is used to allocate many of the structures needed by the driver.
341 * If called from attach, de-allocation is not required because the driver has
342 * not allocated any structures yet, but if called from a Diag Reset, previously
343 * allocated structures based on IOC Facts will need to be freed and re-
344 * allocated bases on the latest IOC Facts.
347 mps_iocfacts_allocate(struct mps_softc *sc, uint8_t attaching)
350 Mpi2IOCFactsReply_t saved_facts;
351 uint8_t saved_mode, reallocating;
353 mps_dprint(sc, MPS_TRACE, "%s\n", __func__);
355 /* Save old IOC Facts and then only reallocate if Facts have changed */
357 bcopy(sc->facts, &saved_facts, sizeof(MPI2_IOC_FACTS_REPLY));
361 * Get IOC Facts. In all cases throughout this function, panic if doing
362 * a re-initialization and only return the error if attaching so the OS
365 if ((error = mps_get_iocfacts(sc, sc->facts)) != 0) {
367 mps_dprint(sc, MPS_FAULT, "%s failed to get IOC Facts "
368 "with error %d\n", __func__, error);
371 panic("%s failed to get IOC Facts with error %d\n",
376 mps_print_iocfacts(sc, sc->facts);
378 snprintf(sc->fw_version, sizeof(sc->fw_version),
379 "%02d.%02d.%02d.%02d",
380 sc->facts->FWVersion.Struct.Major,
381 sc->facts->FWVersion.Struct.Minor,
382 sc->facts->FWVersion.Struct.Unit,
383 sc->facts->FWVersion.Struct.Dev);
385 mps_printf(sc, "Firmware: %s, Driver: %s\n", sc->fw_version,
387 mps_printf(sc, "IOCCapabilities: %b\n", sc->facts->IOCCapabilities,
388 "\20" "\3ScsiTaskFull" "\4DiagTrace" "\5SnapBuf" "\6ExtBuf"
389 "\7EEDP" "\10BiDirTarg" "\11Multicast" "\14TransRetry" "\15IR"
390 "\16EventReplay" "\17RaidAccel" "\20MSIXIndex" "\21HostDisc");
393 * If the chip doesn't support event replay then a hard reset will be
394 * required to trigger a full discovery. Do the reset here then
395 * retransition to Ready. A hard reset might have already been done,
396 * but it doesn't hurt to do it again. Only do this if attaching, not
400 if ((sc->facts->IOCCapabilities &
401 MPI2_IOCFACTS_CAPABILITY_EVENT_REPLAY) == 0) {
402 mps_diag_reset(sc, NO_SLEEP);
403 if ((error = mps_transition_ready(sc)) != 0) {
404 mps_dprint(sc, MPS_FAULT, "%s failed to "
405 "transition to ready with error %d\n",
413 * Set flag if IR Firmware is loaded. If the RAID Capability has
414 * changed from the previous IOC Facts, log a warning, but only if
415 * checking this after a Diag Reset and not during attach.
417 saved_mode = sc->ir_firmware;
418 if (sc->facts->IOCCapabilities &
419 MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID)
422 if (sc->ir_firmware != saved_mode) {
423 mps_dprint(sc, MPS_FAULT, "%s new IR/IT mode in IOC "
424 "Facts does not match previous mode\n", __func__);
428 /* Only deallocate and reallocate if relevant IOC Facts have changed */
429 reallocating = FALSE;
431 ((saved_facts.MsgVersion != sc->facts->MsgVersion) ||
432 (saved_facts.HeaderVersion != sc->facts->HeaderVersion) ||
433 (saved_facts.MaxChainDepth != sc->facts->MaxChainDepth) ||
434 (saved_facts.RequestCredit != sc->facts->RequestCredit) ||
435 (saved_facts.ProductID != sc->facts->ProductID) ||
436 (saved_facts.IOCCapabilities != sc->facts->IOCCapabilities) ||
437 (saved_facts.IOCRequestFrameSize !=
438 sc->facts->IOCRequestFrameSize) ||
439 (saved_facts.MaxTargets != sc->facts->MaxTargets) ||
440 (saved_facts.MaxSasExpanders != sc->facts->MaxSasExpanders) ||
441 (saved_facts.MaxEnclosures != sc->facts->MaxEnclosures) ||
442 (saved_facts.HighPriorityCredit != sc->facts->HighPriorityCredit) ||
443 (saved_facts.MaxReplyDescriptorPostQueueDepth !=
444 sc->facts->MaxReplyDescriptorPostQueueDepth) ||
445 (saved_facts.ReplyFrameSize != sc->facts->ReplyFrameSize) ||
446 (saved_facts.MaxVolumes != sc->facts->MaxVolumes) ||
447 (saved_facts.MaxPersistentEntries !=
448 sc->facts->MaxPersistentEntries))) {
453 * Some things should be done if attaching or re-allocating after a Diag
454 * Reset, but are not needed after a Diag Reset if the FW has not
457 if (attaching || reallocating) {
459 * Check if controller supports FW diag buffers and set flag to
462 if (sc->facts->IOCCapabilities &
463 MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER)
464 sc->fw_diag_buffer_list[MPI2_DIAG_BUF_TYPE_TRACE].
466 if (sc->facts->IOCCapabilities &
467 MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER)
468 sc->fw_diag_buffer_list[MPI2_DIAG_BUF_TYPE_SNAPSHOT].
470 if (sc->facts->IOCCapabilities &
471 MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER)
472 sc->fw_diag_buffer_list[MPI2_DIAG_BUF_TYPE_EXTENDED].
476 * Set flag if EEDP is supported and if TLR is supported.
478 if (sc->facts->IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_EEDP)
479 sc->eedp_enabled = TRUE;
480 if (sc->facts->IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR)
481 sc->control_TLR = TRUE;
484 * Size the queues. Since the reply queues always need one free
485 * entry, we'll just deduct one reply message here.
487 sc->num_reqs = MIN(MPS_REQ_FRAMES, sc->facts->RequestCredit);
488 sc->num_replies = MIN(MPS_REPLY_FRAMES + MPS_EVT_REPLY_FRAMES,
489 sc->facts->MaxReplyDescriptorPostQueueDepth) - 1;
492 * Initialize all Tail Queues
494 TAILQ_INIT(&sc->req_list);
495 TAILQ_INIT(&sc->high_priority_req_list);
496 TAILQ_INIT(&sc->chain_list);
497 TAILQ_INIT(&sc->tm_list);
501 * If doing a Diag Reset and the FW is significantly different
502 * (reallocating will be set above in IOC Facts comparison), then all
503 * buffers based on the IOC Facts will need to be freed before they are
507 mps_iocfacts_free(sc);
508 mpssas_realloc_targets(sc, saved_facts.MaxTargets);
512 * Any deallocation has been completed. Now start reallocating
513 * if needed. Will only need to reallocate if attaching or if the new
514 * IOC Facts are different from the previous IOC Facts after a Diag
515 * Reset. Targets have already been allocated above if needed.
517 if (attaching || reallocating) {
518 if (((error = mps_alloc_queues(sc)) != 0) ||
519 ((error = mps_alloc_replies(sc)) != 0) ||
520 ((error = mps_alloc_requests(sc)) != 0)) {
522 mps_dprint(sc, MPS_FAULT, "%s failed to alloc "
523 "queues with error %d\n", __func__, error);
527 panic("%s failed to alloc queues with error "
528 "%d\n", __func__, error);
533 /* Always initialize the queues */
534 bzero(sc->free_queue, sc->fqdepth * 4);
538 * Always get the chip out of the reset state, but only panic if not
539 * attaching. If attaching and there is an error, that is handled by
542 error = mps_transition_operational(sc);
545 mps_printf(sc, "%s failed to transition to operational "
546 "with error %d\n", __func__, error);
550 panic("%s failed to transition to operational with "
551 "error %d\n", __func__, error);
556 * Finish the queue initialization.
557 * These are set here instead of in mps_init_queues() because the
558 * IOC resets these values during the state transition in
559 * mps_transition_operational(). The free index is set to 1
560 * because the corresponding index in the IOC is set to 0, and the
561 * IOC treats the queues as full if both are set to the same value.
562 * Hence the reason that the queue can't hold all of the possible
565 sc->replypostindex = 0;
566 mps_regwrite(sc, MPI2_REPLY_FREE_HOST_INDEX_OFFSET, sc->replyfreeindex);
567 mps_regwrite(sc, MPI2_REPLY_POST_HOST_INDEX_OFFSET, 0);
570 * Attach the subsystems so they can prepare their event masks.
572 /* XXX Should be dynamic so that IM/IR and user modules can attach */
574 if (((error = mps_attach_log(sc)) != 0) ||
575 ((error = mps_attach_sas(sc)) != 0) ||
576 ((error = mps_attach_user(sc)) != 0)) {
577 mps_printf(sc, "%s failed to attach all subsystems: "
578 "error %d\n", __func__, error);
583 if ((error = mps_pci_setup_interrupts(sc)) != 0) {
584 mps_printf(sc, "%s failed to setup interrupts\n",
592 * Set flag if this is a WD controller. This shouldn't ever change, but
593 * reset it after a Diag Reset, just in case.
595 sc->WD_available = FALSE;
596 if (pci_get_device(sc->mps_dev) == MPI2_MFGPAGE_DEVID_SSS6200)
597 sc->WD_available = TRUE;
603 * This is called if memory is being free (during detach for example) and when
604 * buffers need to be reallocated due to a Diag Reset.
607 mps_iocfacts_free(struct mps_softc *sc)
609 struct mps_command *cm;
612 mps_dprint(sc, MPS_TRACE, "%s\n", __func__);
614 if (sc->free_busaddr != 0)
615 bus_dmamap_unload(sc->queues_dmat, sc->queues_map);
616 if (sc->free_queue != NULL)
617 bus_dmamem_free(sc->queues_dmat, sc->free_queue,
619 if (sc->queues_dmat != NULL)
620 bus_dma_tag_destroy(sc->queues_dmat);
622 if (sc->chain_busaddr != 0)
623 bus_dmamap_unload(sc->chain_dmat, sc->chain_map);
624 if (sc->chain_frames != NULL)
625 bus_dmamem_free(sc->chain_dmat, sc->chain_frames,
627 if (sc->chain_dmat != NULL)
628 bus_dma_tag_destroy(sc->chain_dmat);
630 if (sc->sense_busaddr != 0)
631 bus_dmamap_unload(sc->sense_dmat, sc->sense_map);
632 if (sc->sense_frames != NULL)
633 bus_dmamem_free(sc->sense_dmat, sc->sense_frames,
635 if (sc->sense_dmat != NULL)
636 bus_dma_tag_destroy(sc->sense_dmat);
638 if (sc->reply_busaddr != 0)
639 bus_dmamap_unload(sc->reply_dmat, sc->reply_map);
640 if (sc->reply_frames != NULL)
641 bus_dmamem_free(sc->reply_dmat, sc->reply_frames,
643 if (sc->reply_dmat != NULL)
644 bus_dma_tag_destroy(sc->reply_dmat);
646 if (sc->req_busaddr != 0)
647 bus_dmamap_unload(sc->req_dmat, sc->req_map);
648 if (sc->req_frames != NULL)
649 bus_dmamem_free(sc->req_dmat, sc->req_frames, sc->req_map);
650 if (sc->req_dmat != NULL)
651 bus_dma_tag_destroy(sc->req_dmat);
653 if (sc->chains != NULL)
654 free(sc->chains, M_MPT2);
655 if (sc->commands != NULL) {
656 for (i = 1; i < sc->num_reqs; i++) {
657 cm = &sc->commands[i];
658 bus_dmamap_destroy(sc->buffer_dmat, cm->cm_dmamap);
660 free(sc->commands, M_MPT2);
662 if (sc->buffer_dmat != NULL)
663 bus_dma_tag_destroy(sc->buffer_dmat);
667 * The terms diag reset and hard reset are used interchangeably in the MPI
668 * docs to mean resetting the controller chip. In this code diag reset
669 * cleans everything up, and the hard reset function just sends the reset
670 * sequence to the chip. This should probably be refactored so that every
671 * subsystem gets a reset notification of some sort, and can clean up
675 mps_reinit(struct mps_softc *sc)
678 struct mpssas_softc *sassc;
684 mtx_assert(&sc->mps_mtx, MA_OWNED);
686 if (sc->mps_flags & MPS_FLAGS_DIAGRESET) {
687 mps_dprint(sc, MPS_INIT, "%s reset already in progress\n",
692 mps_dprint(sc, MPS_INFO, "Reinitializing controller,\n");
693 /* make sure the completion callbacks can recognize they're getting
694 * a NULL cm_reply due to a reset.
696 sc->mps_flags |= MPS_FLAGS_DIAGRESET;
699 * Mask interrupts here.
701 mps_dprint(sc, MPS_INIT, "%s mask interrupts\n", __func__);
704 error = mps_diag_reset(sc, CAN_SLEEP);
706 /* XXXSL No need to panic here */
707 panic("%s hard reset failed with error %d\n",
711 /* Restore the PCI state, including the MSI-X registers */
714 /* Give the I/O subsystem special priority to get itself prepared */
715 mpssas_handle_reinit(sc);
718 * Get IOC Facts and allocate all structures based on this information.
719 * The attach function will also call mps_iocfacts_allocate at startup.
720 * If relevant values have changed in IOC Facts, this function will free
721 * all of the memory based on IOC Facts and reallocate that memory.
723 if ((error = mps_iocfacts_allocate(sc, FALSE)) != 0) {
724 panic("%s IOC Facts based allocation failed with error %d\n",
729 * Mapping structures will be re-allocated after getting IOC Page8, so
730 * free these structures here.
732 mps_mapping_exit(sc);
735 * The static page function currently read is IOC Page8. Others can be
736 * added in future. It's possible that the values in IOC Page8 have
737 * changed after a Diag Reset due to user modification, so always read
738 * these. Interrupts are masked, so unmask them before getting config
742 sc->mps_flags &= ~MPS_FLAGS_DIAGRESET;
743 mps_base_static_config_pages(sc);
746 * Some mapping info is based in IOC Page8 data, so re-initialize the
749 mps_mapping_initialize(sc);
752 * Restart will reload the event masks clobbered by the reset, and
753 * then enable the port.
755 mps_reregister_events(sc);
757 /* the end of discovery will release the simq, so we're done. */
758 mps_dprint(sc, MPS_INFO, "%s finished sc %p post %u free %u\n",
759 __func__, sc, sc->replypostindex, sc->replyfreeindex);
761 mpssas_release_simq_reinit(sassc);
766 /* Wait for the chip to ACK a word that we've put into its FIFO
767 * Wait for <timeout> seconds. In single loop wait for busy loop
768 * for 500 microseconds.
769 * Total is [ 0.5 * (2000 * <timeout>) ] in miliseconds.
772 mps_wait_db_ack(struct mps_softc *sc, int timeout, int sleep_flag)
780 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
782 int_status = mps_regread(sc, MPI2_HOST_INTERRUPT_STATUS_OFFSET);
783 if (!(int_status & MPI2_HIS_SYS2IOC_DB_STATUS)) {
784 mps_dprint(sc, MPS_INIT,
785 "%s: successfull count(%d), timeout(%d)\n",
786 __func__, count, timeout);
788 } else if (int_status & MPI2_HIS_IOC2SYS_DB_STATUS) {
789 doorbell = mps_regread(sc, MPI2_DOORBELL_OFFSET);
790 if ((doorbell & MPI2_IOC_STATE_MASK) ==
791 MPI2_IOC_STATE_FAULT) {
792 mps_dprint(sc, MPS_FAULT,
793 "fault_state(0x%04x)!\n", doorbell);
796 } else if (int_status == 0xFFFFFFFF)
799 /* If it can sleep, sleep for 1 milisecond, else busy loop for
801 if (mtx_owned(&sc->mps_mtx) && sleep_flag == CAN_SLEEP)
802 msleep(&sc->msleep_fake_chan, &sc->mps_mtx, 0,
804 else if (sleep_flag == CAN_SLEEP)
805 pause("mpsdba", hz/1000);
812 mps_dprint(sc, MPS_FAULT, "%s: failed due to timeout count(%d), "
813 "int_status(%x)!\n", __func__, count, int_status);
818 /* Wait for the chip to signal that the next word in its FIFO can be fetched */
820 mps_wait_db_int(struct mps_softc *sc)
824 for (retry = 0; retry < MPS_DB_MAX_WAIT; retry++) {
825 if ((mps_regread(sc, MPI2_HOST_INTERRUPT_STATUS_OFFSET) &
826 MPI2_HIS_IOC2SYS_DB_STATUS) != 0)
833 /* Step through the synchronous command state machine, i.e. "Doorbell mode" */
835 mps_request_sync(struct mps_softc *sc, void *req, MPI2_DEFAULT_REPLY *reply,
836 int req_sz, int reply_sz, int timeout)
840 int i, count, ioc_sz, residual;
841 int sleep_flags = CAN_SLEEP;
843 if (curthread->td_no_sleeping != 0)
844 sleep_flags = NO_SLEEP;
847 mps_regwrite(sc, MPI2_HOST_INTERRUPT_STATUS_OFFSET, 0x0);
850 if (mps_regread(sc, MPI2_DOORBELL_OFFSET) & MPI2_DOORBELL_USED)
854 * Announce that a message is coming through the doorbell. Messages
855 * are pushed at 32bit words, so round up if needed.
857 count = (req_sz + 3) / 4;
858 mps_regwrite(sc, MPI2_DOORBELL_OFFSET,
859 (MPI2_FUNCTION_HANDSHAKE << MPI2_DOORBELL_FUNCTION_SHIFT) |
860 (count << MPI2_DOORBELL_ADD_DWORDS_SHIFT));
863 if (mps_wait_db_int(sc) ||
864 (mps_regread(sc, MPI2_DOORBELL_OFFSET) & MPI2_DOORBELL_USED) == 0) {
865 mps_dprint(sc, MPS_FAULT, "Doorbell failed to activate\n");
868 mps_regwrite(sc, MPI2_HOST_INTERRUPT_STATUS_OFFSET, 0x0);
869 if (mps_wait_db_ack(sc, 5, sleep_flags) != 0) {
870 mps_dprint(sc, MPS_FAULT, "Doorbell handshake failed\n");
875 /* Clock out the message data synchronously in 32-bit dwords*/
876 data32 = (uint32_t *)req;
877 for (i = 0; i < count; i++) {
878 mps_regwrite(sc, MPI2_DOORBELL_OFFSET, htole32(data32[i]));
879 if (mps_wait_db_ack(sc, 5, sleep_flags) != 0) {
880 mps_dprint(sc, MPS_FAULT,
881 "Timeout while writing doorbell\n");
887 /* Clock in the reply in 16-bit words. The total length of the
888 * message is always in the 4th byte, so clock out the first 2 words
889 * manually, then loop the rest.
891 data16 = (uint16_t *)reply;
892 if (mps_wait_db_int(sc) != 0) {
893 mps_dprint(sc, MPS_FAULT, "Timeout reading doorbell 0\n");
897 mps_regread(sc, MPI2_DOORBELL_OFFSET) & MPI2_DOORBELL_DATA_MASK;
898 mps_regwrite(sc, MPI2_HOST_INTERRUPT_STATUS_OFFSET, 0x0);
899 if (mps_wait_db_int(sc) != 0) {
900 mps_dprint(sc, MPS_FAULT, "Timeout reading doorbell 1\n");
904 mps_regread(sc, MPI2_DOORBELL_OFFSET) & MPI2_DOORBELL_DATA_MASK;
905 mps_regwrite(sc, MPI2_HOST_INTERRUPT_STATUS_OFFSET, 0x0);
907 /* Number of 32bit words in the message */
908 ioc_sz = reply->MsgLength;
911 * Figure out how many 16bit words to clock in without overrunning.
912 * The precision loss with dividing reply_sz can safely be
913 * ignored because the messages can only be multiples of 32bits.
916 count = MIN((reply_sz / 4), ioc_sz) * 2;
917 if (count < ioc_sz * 2) {
918 residual = ioc_sz * 2 - count;
919 mps_dprint(sc, MPS_ERROR, "Driver error, throwing away %d "
920 "residual message words\n", residual);
923 for (i = 2; i < count; i++) {
924 if (mps_wait_db_int(sc) != 0) {
925 mps_dprint(sc, MPS_FAULT,
926 "Timeout reading doorbell %d\n", i);
929 data16[i] = mps_regread(sc, MPI2_DOORBELL_OFFSET) &
930 MPI2_DOORBELL_DATA_MASK;
931 mps_regwrite(sc, MPI2_HOST_INTERRUPT_STATUS_OFFSET, 0x0);
935 * Pull out residual words that won't fit into the provided buffer.
936 * This keeps the chip from hanging due to a driver programming
940 if (mps_wait_db_int(sc) != 0) {
941 mps_dprint(sc, MPS_FAULT,
942 "Timeout reading doorbell\n");
945 (void)mps_regread(sc, MPI2_DOORBELL_OFFSET);
946 mps_regwrite(sc, MPI2_HOST_INTERRUPT_STATUS_OFFSET, 0x0);
950 if (mps_wait_db_int(sc) != 0) {
951 mps_dprint(sc, MPS_FAULT, "Timeout waiting to exit doorbell\n");
954 if (mps_regread(sc, MPI2_DOORBELL_OFFSET) & MPI2_DOORBELL_USED)
955 mps_dprint(sc, MPS_FAULT, "Warning, doorbell still active\n");
956 mps_regwrite(sc, MPI2_HOST_INTERRUPT_STATUS_OFFSET, 0x0);
962 mps_enqueue_request(struct mps_softc *sc, struct mps_command *cm)
966 mps_dprint(sc, MPS_TRACE, "SMID %u cm %p ccb %p\n",
967 cm->cm_desc.Default.SMID, cm, cm->cm_ccb);
969 if (sc->mps_flags & MPS_FLAGS_ATTACH_DONE && !(sc->mps_flags & MPS_FLAGS_SHUTDOWN))
970 mtx_assert(&sc->mps_mtx, MA_OWNED);
972 if (++sc->io_cmds_active > sc->io_cmds_highwater)
973 sc->io_cmds_highwater++;
974 rd.u.low = cm->cm_desc.Words.Low;
975 rd.u.high = cm->cm_desc.Words.High;
976 rd.word = htole64(rd.word);
977 /* TODO-We may need to make below regwrite atomic */
978 mps_regwrite(sc, MPI2_REQUEST_DESCRIPTOR_POST_LOW_OFFSET,
980 mps_regwrite(sc, MPI2_REQUEST_DESCRIPTOR_POST_HIGH_OFFSET,
985 * Just the FACTS, ma'am.
988 mps_get_iocfacts(struct mps_softc *sc, MPI2_IOC_FACTS_REPLY *facts)
990 MPI2_DEFAULT_REPLY *reply;
991 MPI2_IOC_FACTS_REQUEST request;
992 int error, req_sz, reply_sz;
996 req_sz = sizeof(MPI2_IOC_FACTS_REQUEST);
997 reply_sz = sizeof(MPI2_IOC_FACTS_REPLY);
998 reply = (MPI2_DEFAULT_REPLY *)facts;
1000 bzero(&request, req_sz);
1001 request.Function = MPI2_FUNCTION_IOC_FACTS;
1002 error = mps_request_sync(sc, &request, reply, req_sz, reply_sz, 5);
1008 mps_send_iocinit(struct mps_softc *sc)
1010 MPI2_IOC_INIT_REQUEST init;
1011 MPI2_DEFAULT_REPLY reply;
1012 int req_sz, reply_sz, error;
1014 uint64_t time_in_msec;
1018 req_sz = sizeof(MPI2_IOC_INIT_REQUEST);
1019 reply_sz = sizeof(MPI2_IOC_INIT_REPLY);
1020 bzero(&init, req_sz);
1021 bzero(&reply, reply_sz);
1024 * Fill in the init block. Note that most addresses are
1025 * deliberately in the lower 32bits of memory. This is a micro-
1026 * optimzation for PCI/PCIX, though it's not clear if it helps PCIe.
1028 init.Function = MPI2_FUNCTION_IOC_INIT;
1029 init.WhoInit = MPI2_WHOINIT_HOST_DRIVER;
1030 init.MsgVersion = htole16(MPI2_VERSION);
1031 init.HeaderVersion = htole16(MPI2_HEADER_VERSION);
1032 init.SystemRequestFrameSize = htole16(sc->facts->IOCRequestFrameSize);
1033 init.ReplyDescriptorPostQueueDepth = htole16(sc->pqdepth);
1034 init.ReplyFreeQueueDepth = htole16(sc->fqdepth);
1035 init.SenseBufferAddressHigh = 0;
1036 init.SystemReplyAddressHigh = 0;
1037 init.SystemRequestFrameBaseAddress.High = 0;
1038 init.SystemRequestFrameBaseAddress.Low = htole32((uint32_t)sc->req_busaddr);
1039 init.ReplyDescriptorPostQueueAddress.High = 0;
1040 init.ReplyDescriptorPostQueueAddress.Low = htole32((uint32_t)sc->post_busaddr);
1041 init.ReplyFreeQueueAddress.High = 0;
1042 init.ReplyFreeQueueAddress.Low = htole32((uint32_t)sc->free_busaddr);
1044 time_in_msec = (now.tv_sec * 1000 + now.tv_usec/1000);
1045 init.TimeStamp.High = htole32((time_in_msec >> 32) & 0xFFFFFFFF);
1046 init.TimeStamp.Low = htole32(time_in_msec & 0xFFFFFFFF);
1048 error = mps_request_sync(sc, &init, &reply, req_sz, reply_sz, 5);
1049 if ((reply.IOCStatus & MPI2_IOCSTATUS_MASK) != MPI2_IOCSTATUS_SUCCESS)
1052 mps_dprint(sc, MPS_INIT, "IOCInit status= 0x%x\n", reply.IOCStatus);
1057 mps_memaddr_cb(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
1062 *addr = segs[0].ds_addr;
1066 mps_alloc_queues(struct mps_softc *sc)
1068 bus_addr_t queues_busaddr;
1070 int qsize, fqsize, pqsize;
1073 * The reply free queue contains 4 byte entries in multiples of 16 and
1074 * aligned on a 16 byte boundary. There must always be an unused entry.
1075 * This queue supplies fresh reply frames for the firmware to use.
1077 * The reply descriptor post queue contains 8 byte entries in
1078 * multiples of 16 and aligned on a 16 byte boundary. This queue
1079 * contains filled-in reply frames sent from the firmware to the host.
1081 * These two queues are allocated together for simplicity.
1083 sc->fqdepth = roundup2((sc->num_replies + 1), 16);
1084 sc->pqdepth = roundup2((sc->num_replies + 1), 16);
1085 fqsize= sc->fqdepth * 4;
1086 pqsize = sc->pqdepth * 8;
1087 qsize = fqsize + pqsize;
1089 if (bus_dma_tag_create( sc->mps_parent_dmat, /* parent */
1090 16, 0, /* algnmnt, boundary */
1091 BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
1092 BUS_SPACE_MAXADDR, /* highaddr */
1093 NULL, NULL, /* filter, filterarg */
1094 qsize, /* maxsize */
1096 qsize, /* maxsegsize */
1098 NULL, NULL, /* lockfunc, lockarg */
1099 &sc->queues_dmat)) {
1100 device_printf(sc->mps_dev, "Cannot allocate queues DMA tag\n");
1103 if (bus_dmamem_alloc(sc->queues_dmat, (void **)&queues, BUS_DMA_NOWAIT,
1105 device_printf(sc->mps_dev, "Cannot allocate queues memory\n");
1108 bzero(queues, qsize);
1109 bus_dmamap_load(sc->queues_dmat, sc->queues_map, queues, qsize,
1110 mps_memaddr_cb, &queues_busaddr, 0);
1112 sc->free_queue = (uint32_t *)queues;
1113 sc->free_busaddr = queues_busaddr;
1114 sc->post_queue = (MPI2_REPLY_DESCRIPTORS_UNION *)(queues + fqsize);
1115 sc->post_busaddr = queues_busaddr + fqsize;
1121 mps_alloc_replies(struct mps_softc *sc)
1123 int rsize, num_replies;
1126 * sc->num_replies should be one less than sc->fqdepth. We need to
1127 * allocate space for sc->fqdepth replies, but only sc->num_replies
1128 * replies can be used at once.
1130 num_replies = max(sc->fqdepth, sc->num_replies);
1132 rsize = sc->facts->ReplyFrameSize * num_replies * 4;
1133 if (bus_dma_tag_create( sc->mps_parent_dmat, /* parent */
1134 4, 0, /* algnmnt, boundary */
1135 BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
1136 BUS_SPACE_MAXADDR, /* highaddr */
1137 NULL, NULL, /* filter, filterarg */
1138 rsize, /* maxsize */
1140 rsize, /* maxsegsize */
1142 NULL, NULL, /* lockfunc, lockarg */
1144 device_printf(sc->mps_dev, "Cannot allocate replies DMA tag\n");
1147 if (bus_dmamem_alloc(sc->reply_dmat, (void **)&sc->reply_frames,
1148 BUS_DMA_NOWAIT, &sc->reply_map)) {
1149 device_printf(sc->mps_dev, "Cannot allocate replies memory\n");
1152 bzero(sc->reply_frames, rsize);
1153 bus_dmamap_load(sc->reply_dmat, sc->reply_map, sc->reply_frames, rsize,
1154 mps_memaddr_cb, &sc->reply_busaddr, 0);
1160 mps_alloc_requests(struct mps_softc *sc)
1162 struct mps_command *cm;
1163 struct mps_chain *chain;
1164 int i, rsize, nsegs;
1166 rsize = sc->facts->IOCRequestFrameSize * sc->num_reqs * 4;
1167 if (bus_dma_tag_create( sc->mps_parent_dmat, /* parent */
1168 16, 0, /* algnmnt, boundary */
1169 BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
1170 BUS_SPACE_MAXADDR, /* highaddr */
1171 NULL, NULL, /* filter, filterarg */
1172 rsize, /* maxsize */
1174 rsize, /* maxsegsize */
1176 NULL, NULL, /* lockfunc, lockarg */
1178 device_printf(sc->mps_dev, "Cannot allocate request DMA tag\n");
1181 if (bus_dmamem_alloc(sc->req_dmat, (void **)&sc->req_frames,
1182 BUS_DMA_NOWAIT, &sc->req_map)) {
1183 device_printf(sc->mps_dev, "Cannot allocate request memory\n");
1186 bzero(sc->req_frames, rsize);
1187 bus_dmamap_load(sc->req_dmat, sc->req_map, sc->req_frames, rsize,
1188 mps_memaddr_cb, &sc->req_busaddr, 0);
1190 rsize = sc->facts->IOCRequestFrameSize * sc->max_chains * 4;
1191 if (bus_dma_tag_create( sc->mps_parent_dmat, /* parent */
1192 16, 0, /* algnmnt, boundary */
1193 BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
1194 BUS_SPACE_MAXADDR, /* highaddr */
1195 NULL, NULL, /* filter, filterarg */
1196 rsize, /* maxsize */
1198 rsize, /* maxsegsize */
1200 NULL, NULL, /* lockfunc, lockarg */
1202 device_printf(sc->mps_dev, "Cannot allocate chain DMA tag\n");
1205 if (bus_dmamem_alloc(sc->chain_dmat, (void **)&sc->chain_frames,
1206 BUS_DMA_NOWAIT, &sc->chain_map)) {
1207 device_printf(sc->mps_dev, "Cannot allocate chain memory\n");
1210 bzero(sc->chain_frames, rsize);
1211 bus_dmamap_load(sc->chain_dmat, sc->chain_map, sc->chain_frames, rsize,
1212 mps_memaddr_cb, &sc->chain_busaddr, 0);
1214 rsize = MPS_SENSE_LEN * sc->num_reqs;
1215 if (bus_dma_tag_create( sc->mps_parent_dmat, /* parent */
1216 1, 0, /* algnmnt, boundary */
1217 BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
1218 BUS_SPACE_MAXADDR, /* highaddr */
1219 NULL, NULL, /* filter, filterarg */
1220 rsize, /* maxsize */
1222 rsize, /* maxsegsize */
1224 NULL, NULL, /* lockfunc, lockarg */
1226 device_printf(sc->mps_dev, "Cannot allocate sense DMA tag\n");
1229 if (bus_dmamem_alloc(sc->sense_dmat, (void **)&sc->sense_frames,
1230 BUS_DMA_NOWAIT, &sc->sense_map)) {
1231 device_printf(sc->mps_dev, "Cannot allocate sense memory\n");
1234 bzero(sc->sense_frames, rsize);
1235 bus_dmamap_load(sc->sense_dmat, sc->sense_map, sc->sense_frames, rsize,
1236 mps_memaddr_cb, &sc->sense_busaddr, 0);
1238 sc->chains = malloc(sizeof(struct mps_chain) * sc->max_chains, M_MPT2,
1241 device_printf(sc->mps_dev,
1242 "Cannot allocate chains memory %s %d\n",
1243 __func__, __LINE__);
1246 for (i = 0; i < sc->max_chains; i++) {
1247 chain = &sc->chains[i];
1248 chain->chain = (MPI2_SGE_IO_UNION *)(sc->chain_frames +
1249 i * sc->facts->IOCRequestFrameSize * 4);
1250 chain->chain_busaddr = sc->chain_busaddr +
1251 i * sc->facts->IOCRequestFrameSize * 4;
1252 mps_free_chain(sc, chain);
1253 sc->chain_free_lowwater++;
1256 /* XXX Need to pick a more precise value */
1257 nsegs = (MAXPHYS / PAGE_SIZE) + 1;
1258 if (bus_dma_tag_create( sc->mps_parent_dmat, /* parent */
1259 1, 0, /* algnmnt, boundary */
1260 BUS_SPACE_MAXADDR, /* lowaddr */
1261 BUS_SPACE_MAXADDR, /* highaddr */
1262 NULL, NULL, /* filter, filterarg */
1263 BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
1264 nsegs, /* nsegments */
1265 BUS_SPACE_MAXSIZE_24BIT,/* maxsegsize */
1266 BUS_DMA_ALLOCNOW, /* flags */
1267 busdma_lock_mutex, /* lockfunc */
1268 &sc->mps_mtx, /* lockarg */
1269 &sc->buffer_dmat)) {
1270 device_printf(sc->mps_dev, "Cannot allocate buffer DMA tag\n");
1275 * SMID 0 cannot be used as a free command per the firmware spec.
1276 * Just drop that command instead of risking accounting bugs.
1278 sc->commands = malloc(sizeof(struct mps_command) * sc->num_reqs,
1279 M_MPT2, M_WAITOK | M_ZERO);
1281 device_printf(sc->mps_dev, "Cannot allocate memory %s %d\n",
1282 __func__, __LINE__);
1285 for (i = 1; i < sc->num_reqs; i++) {
1286 cm = &sc->commands[i];
1287 cm->cm_req = sc->req_frames +
1288 i * sc->facts->IOCRequestFrameSize * 4;
1289 cm->cm_req_busaddr = sc->req_busaddr +
1290 i * sc->facts->IOCRequestFrameSize * 4;
1291 cm->cm_sense = &sc->sense_frames[i];
1292 cm->cm_sense_busaddr = sc->sense_busaddr + i * MPS_SENSE_LEN;
1293 cm->cm_desc.Default.SMID = i;
1295 TAILQ_INIT(&cm->cm_chain_list);
1296 callout_init_mtx(&cm->cm_callout, &sc->mps_mtx, 0);
1298 /* XXX Is a failure here a critical problem? */
1299 if (bus_dmamap_create(sc->buffer_dmat, 0, &cm->cm_dmamap) == 0)
1300 if (i <= sc->facts->HighPriorityCredit)
1301 mps_free_high_priority_command(sc, cm);
1303 mps_free_command(sc, cm);
1305 panic("failed to allocate command %d\n", i);
1315 mps_init_queues(struct mps_softc *sc)
1319 memset((uint8_t *)sc->post_queue, 0xff, sc->pqdepth * 8);
1322 * According to the spec, we need to use one less reply than we
1323 * have space for on the queue. So sc->num_replies (the number we
1324 * use) should be less than sc->fqdepth (allocated size).
1326 if (sc->num_replies >= sc->fqdepth)
1330 * Initialize all of the free queue entries.
1332 for (i = 0; i < sc->fqdepth; i++)
1333 sc->free_queue[i] = sc->reply_busaddr + (i * sc->facts->ReplyFrameSize * 4);
1334 sc->replyfreeindex = sc->num_replies;
1339 /* Get the driver parameter tunables. Lowest priority are the driver defaults.
1340 * Next are the global settings, if they exist. Highest are the per-unit
1341 * settings, if they exist.
1344 mps_get_tunables(struct mps_softc *sc)
1348 /* XXX default to some debugging for now */
1349 sc->mps_debug = MPS_INFO|MPS_FAULT;
1350 sc->disable_msix = 0;
1351 sc->disable_msi = 0;
1352 sc->max_chains = MPS_CHAIN_FRAMES;
1353 sc->enable_ssu = MPS_SSU_ENABLE_SSD_DISABLE_HDD;
1354 sc->spinup_wait_time = DEFAULT_SPINUP_WAIT;
1357 * Grab the global variables.
1359 TUNABLE_INT_FETCH("hw.mps.debug_level", &sc->mps_debug);
1360 TUNABLE_INT_FETCH("hw.mps.disable_msix", &sc->disable_msix);
1361 TUNABLE_INT_FETCH("hw.mps.disable_msi", &sc->disable_msi);
1362 TUNABLE_INT_FETCH("hw.mps.max_chains", &sc->max_chains);
1363 TUNABLE_INT_FETCH("hw.mps.enable_ssu", &sc->enable_ssu);
1364 TUNABLE_INT_FETCH("hw.mps.spinup_wait_time", &sc->spinup_wait_time);
1366 /* Grab the unit-instance variables */
1367 snprintf(tmpstr, sizeof(tmpstr), "dev.mps.%d.debug_level",
1368 device_get_unit(sc->mps_dev));
1369 TUNABLE_INT_FETCH(tmpstr, &sc->mps_debug);
1371 snprintf(tmpstr, sizeof(tmpstr), "dev.mps.%d.disable_msix",
1372 device_get_unit(sc->mps_dev));
1373 TUNABLE_INT_FETCH(tmpstr, &sc->disable_msix);
1375 snprintf(tmpstr, sizeof(tmpstr), "dev.mps.%d.disable_msi",
1376 device_get_unit(sc->mps_dev));
1377 TUNABLE_INT_FETCH(tmpstr, &sc->disable_msi);
1379 snprintf(tmpstr, sizeof(tmpstr), "dev.mps.%d.max_chains",
1380 device_get_unit(sc->mps_dev));
1381 TUNABLE_INT_FETCH(tmpstr, &sc->max_chains);
1383 bzero(sc->exclude_ids, sizeof(sc->exclude_ids));
1384 snprintf(tmpstr, sizeof(tmpstr), "dev.mps.%d.exclude_ids",
1385 device_get_unit(sc->mps_dev));
1386 TUNABLE_STR_FETCH(tmpstr, sc->exclude_ids, sizeof(sc->exclude_ids));
1388 snprintf(tmpstr, sizeof(tmpstr), "dev.mps.%d.enable_ssu",
1389 device_get_unit(sc->mps_dev));
1390 TUNABLE_INT_FETCH(tmpstr, &sc->enable_ssu);
1392 snprintf(tmpstr, sizeof(tmpstr), "dev.mps.%d.spinup_wait_time",
1393 device_get_unit(sc->mps_dev));
1394 TUNABLE_INT_FETCH(tmpstr, &sc->spinup_wait_time);
1398 mps_setup_sysctl(struct mps_softc *sc)
1400 struct sysctl_ctx_list *sysctl_ctx = NULL;
1401 struct sysctl_oid *sysctl_tree = NULL;
1402 char tmpstr[80], tmpstr2[80];
1405 * Setup the sysctl variable so the user can change the debug level
1408 snprintf(tmpstr, sizeof(tmpstr), "MPS controller %d",
1409 device_get_unit(sc->mps_dev));
1410 snprintf(tmpstr2, sizeof(tmpstr2), "%d", device_get_unit(sc->mps_dev));
1412 sysctl_ctx = device_get_sysctl_ctx(sc->mps_dev);
1413 if (sysctl_ctx != NULL)
1414 sysctl_tree = device_get_sysctl_tree(sc->mps_dev);
1416 if (sysctl_tree == NULL) {
1417 sysctl_ctx_init(&sc->sysctl_ctx);
1418 sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctx,
1419 SYSCTL_STATIC_CHILDREN(_hw_mps), OID_AUTO, tmpstr2,
1420 CTLFLAG_RD, 0, tmpstr);
1421 if (sc->sysctl_tree == NULL)
1423 sysctl_ctx = &sc->sysctl_ctx;
1424 sysctl_tree = sc->sysctl_tree;
1427 SYSCTL_ADD_INT(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree),
1428 OID_AUTO, "debug_level", CTLFLAG_RW, &sc->mps_debug, 0,
1431 SYSCTL_ADD_INT(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree),
1432 OID_AUTO, "disable_msix", CTLFLAG_RD, &sc->disable_msix, 0,
1433 "Disable the use of MSI-X interrupts");
1435 SYSCTL_ADD_INT(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree),
1436 OID_AUTO, "disable_msi", CTLFLAG_RD, &sc->disable_msi, 0,
1437 "Disable the use of MSI interrupts");
1439 SYSCTL_ADD_STRING(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree),
1440 OID_AUTO, "firmware_version", CTLFLAG_RW, sc->fw_version,
1441 strlen(sc->fw_version), "firmware version");
1443 SYSCTL_ADD_STRING(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree),
1444 OID_AUTO, "driver_version", CTLFLAG_RW, MPS_DRIVER_VERSION,
1445 strlen(MPS_DRIVER_VERSION), "driver version");
1447 SYSCTL_ADD_INT(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree),
1448 OID_AUTO, "io_cmds_active", CTLFLAG_RD,
1449 &sc->io_cmds_active, 0, "number of currently active commands");
1451 SYSCTL_ADD_INT(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree),
1452 OID_AUTO, "io_cmds_highwater", CTLFLAG_RD,
1453 &sc->io_cmds_highwater, 0, "maximum active commands seen");
1455 SYSCTL_ADD_INT(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree),
1456 OID_AUTO, "chain_free", CTLFLAG_RD,
1457 &sc->chain_free, 0, "number of free chain elements");
1459 SYSCTL_ADD_INT(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree),
1460 OID_AUTO, "chain_free_lowwater", CTLFLAG_RD,
1461 &sc->chain_free_lowwater, 0,"lowest number of free chain elements");
1463 SYSCTL_ADD_INT(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree),
1464 OID_AUTO, "max_chains", CTLFLAG_RD,
1465 &sc->max_chains, 0,"maximum chain frames that will be allocated");
1467 SYSCTL_ADD_INT(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree),
1468 OID_AUTO, "enable_ssu", CTLFLAG_RW, &sc->enable_ssu, 0,
1469 "enable SSU to SATA SSD/HDD at shutdown");
1471 #if __FreeBSD_version >= 900030
1472 SYSCTL_ADD_UQUAD(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree),
1473 OID_AUTO, "chain_alloc_fail", CTLFLAG_RD,
1474 &sc->chain_alloc_fail, "chain allocation failures");
1475 #endif //FreeBSD_version >= 900030
1477 SYSCTL_ADD_INT(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree),
1478 OID_AUTO, "spinup_wait_time", CTLFLAG_RD,
1479 &sc->spinup_wait_time, DEFAULT_SPINUP_WAIT, "seconds to wait for "
1480 "spinup after SATA ID error");
1484 mps_attach(struct mps_softc *sc)
1488 mps_get_tunables(sc);
1492 mtx_init(&sc->mps_mtx, "MPT2SAS lock", NULL, MTX_DEF);
1493 callout_init_mtx(&sc->periodic, &sc->mps_mtx, 0);
1494 TAILQ_INIT(&sc->event_list);
1495 timevalclear(&sc->lastfail);
1497 if ((error = mps_transition_ready(sc)) != 0) {
1498 mps_printf(sc, "%s failed to transition ready\n", __func__);
1502 sc->facts = malloc(sizeof(MPI2_IOC_FACTS_REPLY), M_MPT2,
1505 device_printf(sc->mps_dev, "Cannot allocate memory %s %d\n",
1506 __func__, __LINE__);
1511 * Get IOC Facts and allocate all structures based on this information.
1512 * A Diag Reset will also call mps_iocfacts_allocate and re-read the IOC
1513 * Facts. If relevant values have changed in IOC Facts, this function
1514 * will free all of the memory based on IOC Facts and reallocate that
1515 * memory. If this fails, any allocated memory should already be freed.
1517 if ((error = mps_iocfacts_allocate(sc, TRUE)) != 0) {
1518 mps_dprint(sc, MPS_FAULT, "%s IOC Facts based allocation "
1519 "failed with error %d\n", __func__, error);
1523 /* Start the periodic watchdog check on the IOC Doorbell */
1527 * The portenable will kick off discovery events that will drive the
1528 * rest of the initialization process. The CAM/SAS module will
1529 * hold up the boot sequence until discovery is complete.
1531 sc->mps_ich.ich_func = mps_startup;
1532 sc->mps_ich.ich_arg = sc;
1533 if (config_intrhook_establish(&sc->mps_ich) != 0) {
1534 mps_dprint(sc, MPS_ERROR, "Cannot establish MPS config hook\n");
1539 * Allow IR to shutdown gracefully when shutdown occurs.
1541 sc->shutdown_eh = EVENTHANDLER_REGISTER(shutdown_final,
1542 mpssas_ir_shutdown, sc, SHUTDOWN_PRI_DEFAULT);
1544 if (sc->shutdown_eh == NULL)
1545 mps_dprint(sc, MPS_ERROR, "shutdown event registration "
1548 mps_setup_sysctl(sc);
1550 sc->mps_flags |= MPS_FLAGS_ATTACH_DONE;
1555 /* Run through any late-start handlers. */
1557 mps_startup(void *arg)
1559 struct mps_softc *sc;
1561 sc = (struct mps_softc *)arg;
1564 mps_unmask_intr(sc);
1566 /* initialize device mapping tables */
1567 mps_base_static_config_pages(sc);
1568 mps_mapping_initialize(sc);
1573 /* Periodic watchdog. Is called with the driver lock already held. */
1575 mps_periodic(void *arg)
1577 struct mps_softc *sc;
1580 sc = (struct mps_softc *)arg;
1581 if (sc->mps_flags & MPS_FLAGS_SHUTDOWN)
1584 db = mps_regread(sc, MPI2_DOORBELL_OFFSET);
1585 if ((db & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
1586 mps_dprint(sc, MPS_FAULT, "IOC Fault 0x%08x, Resetting\n", db);
1590 callout_reset(&sc->periodic, MPS_PERIODIC_DELAY * hz, mps_periodic, sc);
1594 mps_log_evt_handler(struct mps_softc *sc, uintptr_t data,
1595 MPI2_EVENT_NOTIFICATION_REPLY *event)
1597 MPI2_EVENT_DATA_LOG_ENTRY_ADDED *entry;
1599 mps_print_event(sc, event);
1601 switch (event->Event) {
1602 case MPI2_EVENT_LOG_DATA:
1603 mps_dprint(sc, MPS_EVENT, "MPI2_EVENT_LOG_DATA:\n");
1604 if (sc->mps_debug & MPS_EVENT)
1605 hexdump(event->EventData, event->EventDataLength, NULL, 0);
1607 case MPI2_EVENT_LOG_ENTRY_ADDED:
1608 entry = (MPI2_EVENT_DATA_LOG_ENTRY_ADDED *)event->EventData;
1609 mps_dprint(sc, MPS_EVENT, "MPI2_EVENT_LOG_ENTRY_ADDED event "
1610 "0x%x Sequence %d:\n", entry->LogEntryQualifier,
1611 entry->LogSequence);
1620 mps_attach_log(struct mps_softc *sc)
1622 u32 events[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS];
1625 setbit(events, MPI2_EVENT_LOG_DATA);
1626 setbit(events, MPI2_EVENT_LOG_ENTRY_ADDED);
1628 mps_register_events(sc, events, mps_log_evt_handler, NULL,
1635 mps_detach_log(struct mps_softc *sc)
1638 if (sc->mps_log_eh != NULL)
1639 mps_deregister_events(sc, sc->mps_log_eh);
1644 * Free all of the driver resources and detach submodules. Should be called
1645 * without the lock held.
1648 mps_free(struct mps_softc *sc)
1652 /* Turn off the watchdog */
1654 sc->mps_flags |= MPS_FLAGS_SHUTDOWN;
1656 /* Lock must not be held for this */
1657 callout_drain(&sc->periodic);
1659 if (((error = mps_detach_log(sc)) != 0) ||
1660 ((error = mps_detach_sas(sc)) != 0))
1663 mps_detach_user(sc);
1665 /* Put the IOC back in the READY state. */
1667 if ((error = mps_transition_ready(sc)) != 0) {
1673 if (sc->facts != NULL)
1674 free(sc->facts, M_MPT2);
1677 * Free all buffers that are based on IOC Facts. A Diag Reset may need
1678 * to free these buffers too.
1680 mps_iocfacts_free(sc);
1682 if (sc->sysctl_tree != NULL)
1683 sysctl_ctx_free(&sc->sysctl_ctx);
1685 /* Deregister the shutdown function */
1686 if (sc->shutdown_eh != NULL)
1687 EVENTHANDLER_DEREGISTER(shutdown_final, sc->shutdown_eh);
1689 mtx_destroy(&sc->mps_mtx);
1694 static __inline void
1695 mps_complete_command(struct mps_softc *sc, struct mps_command *cm)
1700 mps_dprint(sc, MPS_ERROR, "Completing NULL command\n");
1704 if (cm->cm_flags & MPS_CM_FLAGS_POLLED)
1705 cm->cm_flags |= MPS_CM_FLAGS_COMPLETE;
1707 if (cm->cm_complete != NULL) {
1708 mps_dprint(sc, MPS_TRACE,
1709 "%s cm %p calling cm_complete %p data %p reply %p\n",
1710 __func__, cm, cm->cm_complete, cm->cm_complete_data,
1712 cm->cm_complete(sc, cm);
1715 if (cm->cm_flags & MPS_CM_FLAGS_WAKEUP) {
1716 mps_dprint(sc, MPS_TRACE, "waking up %p\n", cm);
1720 if (cm->cm_sc->io_cmds_active != 0) {
1721 cm->cm_sc->io_cmds_active--;
1723 mps_dprint(sc, MPS_ERROR, "Warning: io_cmds_active is "
1724 "out of sync - resynching to 0\n");
1730 mps_sas_log_info(struct mps_softc *sc , u32 log_info)
1732 union loginfo_type {
1741 union loginfo_type sas_loginfo;
1742 char *originator_str = NULL;
1744 sas_loginfo.loginfo = log_info;
1745 if (sas_loginfo.dw.bus_type != 3 /*SAS*/)
1748 /* each nexus loss loginfo */
1749 if (log_info == 0x31170000)
1752 /* eat the loginfos associated with task aborts */
1753 if ((log_info == 30050000 || log_info ==
1754 0x31140000 || log_info == 0x31130000))
1757 switch (sas_loginfo.dw.originator) {
1759 originator_str = "IOP";
1762 originator_str = "PL";
1765 originator_str = "IR";
1769 mps_dprint(sc, MPS_LOG, "log_info(0x%08x): originator(%s), "
1770 "code(0x%02x), sub_code(0x%04x)\n", log_info,
1771 originator_str, sas_loginfo.dw.code,
1772 sas_loginfo.dw.subcode);
1776 mps_display_reply_info(struct mps_softc *sc, uint8_t *reply)
1778 MPI2DefaultReply_t *mpi_reply;
1781 mpi_reply = (MPI2DefaultReply_t*)reply;
1782 sc_status = le16toh(mpi_reply->IOCStatus);
1783 if (sc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
1784 mps_sas_log_info(sc, le32toh(mpi_reply->IOCLogInfo));
1787 mps_intr(void *data)
1789 struct mps_softc *sc;
1792 sc = (struct mps_softc *)data;
1793 mps_dprint(sc, MPS_TRACE, "%s\n", __func__);
1796 * Check interrupt status register to flush the bus. This is
1797 * needed for both INTx interrupts and driver-driven polling
1799 status = mps_regread(sc, MPI2_HOST_INTERRUPT_STATUS_OFFSET);
1800 if ((status & MPI2_HIS_REPLY_DESCRIPTOR_INTERRUPT) == 0)
1804 mps_intr_locked(data);
1810 * In theory, MSI/MSIX interrupts shouldn't need to read any registers on the
1811 * chip. Hopefully this theory is correct.
1814 mps_intr_msi(void *data)
1816 struct mps_softc *sc;
1818 sc = (struct mps_softc *)data;
1819 mps_dprint(sc, MPS_TRACE, "%s\n", __func__);
1821 mps_intr_locked(data);
1827 * The locking is overly broad and simplistic, but easy to deal with for now.
1830 mps_intr_locked(void *data)
1832 MPI2_REPLY_DESCRIPTORS_UNION *desc;
1833 struct mps_softc *sc;
1834 struct mps_command *cm = NULL;
1837 MPI2_DIAG_RELEASE_REPLY *rel_rep;
1838 mps_fw_diagnostic_buffer_t *pBuffer;
1840 sc = (struct mps_softc *)data;
1842 pq = sc->replypostindex;
1843 mps_dprint(sc, MPS_TRACE,
1844 "%s sc %p starting with replypostindex %u\n",
1845 __func__, sc, sc->replypostindex);
1849 desc = &sc->post_queue[sc->replypostindex];
1850 flags = desc->Default.ReplyFlags &
1851 MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
1852 if ((flags == MPI2_RPY_DESCRIPT_FLAGS_UNUSED)
1853 || (le32toh(desc->Words.High) == 0xffffffff))
1856 /* increment the replypostindex now, so that event handlers
1857 * and cm completion handlers which decide to do a diag
1858 * reset can zero it without it getting incremented again
1859 * afterwards, and we break out of this loop on the next
1860 * iteration since the reply post queue has been cleared to
1861 * 0xFF and all descriptors look unused (which they are).
1863 if (++sc->replypostindex >= sc->pqdepth)
1864 sc->replypostindex = 0;
1867 case MPI2_RPY_DESCRIPT_FLAGS_SCSI_IO_SUCCESS:
1868 cm = &sc->commands[le16toh(desc->SCSIIOSuccess.SMID)];
1869 cm->cm_reply = NULL;
1871 case MPI2_RPY_DESCRIPT_FLAGS_ADDRESS_REPLY:
1877 * Re-compose the reply address from the address
1878 * sent back from the chip. The ReplyFrameAddress
1879 * is the lower 32 bits of the physical address of
1880 * particular reply frame. Convert that address to
1881 * host format, and then use that to provide the
1882 * offset against the virtual address base
1883 * (sc->reply_frames).
1885 baddr = le32toh(desc->AddressReply.ReplyFrameAddress);
1886 reply = sc->reply_frames +
1887 (baddr - ((uint32_t)sc->reply_busaddr));
1889 * Make sure the reply we got back is in a valid
1890 * range. If not, go ahead and panic here, since
1891 * we'll probably panic as soon as we deference the
1892 * reply pointer anyway.
1894 if ((reply < sc->reply_frames)
1895 || (reply > (sc->reply_frames +
1896 (sc->fqdepth * sc->facts->ReplyFrameSize * 4)))) {
1897 printf("%s: WARNING: reply %p out of range!\n",
1899 printf("%s: reply_frames %p, fqdepth %d, "
1900 "frame size %d\n", __func__,
1901 sc->reply_frames, sc->fqdepth,
1902 sc->facts->ReplyFrameSize * 4);
1903 printf("%s: baddr %#x,\n", __func__, baddr);
1904 /* LSI-TODO. See Linux Code. Need Gracefull exit*/
1905 panic("Reply address out of range");
1907 if (le16toh(desc->AddressReply.SMID) == 0) {
1908 if (((MPI2_DEFAULT_REPLY *)reply)->Function ==
1909 MPI2_FUNCTION_DIAG_BUFFER_POST) {
1911 * If SMID is 0 for Diag Buffer Post,
1912 * this implies that the reply is due to
1913 * a release function with a status that
1914 * the buffer has been released. Set
1915 * the buffer flags accordingly.
1918 (MPI2_DIAG_RELEASE_REPLY *)reply;
1919 if ((le16toh(rel_rep->IOCStatus) &
1920 MPI2_IOCSTATUS_MASK) ==
1921 MPI2_IOCSTATUS_DIAGNOSTIC_RELEASED)
1924 &sc->fw_diag_buffer_list[
1925 rel_rep->BufferType];
1926 pBuffer->valid_data = TRUE;
1927 pBuffer->owned_by_firmware =
1929 pBuffer->immediate = FALSE;
1932 mps_dispatch_event(sc, baddr,
1933 (MPI2_EVENT_NOTIFICATION_REPLY *)
1936 cm = &sc->commands[le16toh(desc->AddressReply.SMID)];
1937 cm->cm_reply = reply;
1939 le32toh(desc->AddressReply.ReplyFrameAddress);
1943 case MPI2_RPY_DESCRIPT_FLAGS_TARGETASSIST_SUCCESS:
1944 case MPI2_RPY_DESCRIPT_FLAGS_TARGET_COMMAND_BUFFER:
1945 case MPI2_RPY_DESCRIPT_FLAGS_RAID_ACCELERATOR_SUCCESS:
1948 mps_dprint(sc, MPS_ERROR, "Unhandled reply 0x%x\n",
1949 desc->Default.ReplyFlags);
1956 // Print Error reply frame
1958 mps_display_reply_info(sc,cm->cm_reply);
1959 mps_complete_command(sc, cm);
1962 desc->Words.Low = 0xffffffff;
1963 desc->Words.High = 0xffffffff;
1966 if (pq != sc->replypostindex) {
1967 mps_dprint(sc, MPS_TRACE,
1968 "%s sc %p writing postindex %d\n",
1969 __func__, sc, sc->replypostindex);
1970 mps_regwrite(sc, MPI2_REPLY_POST_HOST_INDEX_OFFSET, sc->replypostindex);
1977 mps_dispatch_event(struct mps_softc *sc, uintptr_t data,
1978 MPI2_EVENT_NOTIFICATION_REPLY *reply)
1980 struct mps_event_handle *eh;
1981 int event, handled = 0;
1983 event = le16toh(reply->Event);
1984 TAILQ_FOREACH(eh, &sc->event_list, eh_list) {
1985 if (isset(eh->mask, event)) {
1986 eh->callback(sc, data, reply);
1992 mps_dprint(sc, MPS_EVENT, "Unhandled event 0x%x\n", le16toh(event));
1995 * This is the only place that the event/reply should be freed.
1996 * Anything wanting to hold onto the event data should have
1997 * already copied it into their own storage.
1999 mps_free_reply(sc, data);
2003 mps_reregister_events_complete(struct mps_softc *sc, struct mps_command *cm)
2005 mps_dprint(sc, MPS_TRACE, "%s\n", __func__);
2009 (MPI2_EVENT_NOTIFICATION_REPLY *)cm->cm_reply);
2011 mps_free_command(sc, cm);
2013 /* next, send a port enable */
2018 * For both register_events and update_events, the caller supplies a bitmap
2019 * of events that it _wants_. These functions then turn that into a bitmask
2020 * suitable for the controller.
2023 mps_register_events(struct mps_softc *sc, u32 *mask,
2024 mps_evt_callback_t *cb, void *data, struct mps_event_handle **handle)
2026 struct mps_event_handle *eh;
2029 eh = malloc(sizeof(struct mps_event_handle), M_MPT2, M_WAITOK|M_ZERO);
2031 device_printf(sc->mps_dev, "Cannot allocate memory %s %d\n",
2032 __func__, __LINE__);
2037 TAILQ_INSERT_TAIL(&sc->event_list, eh, eh_list);
2039 error = mps_update_events(sc, eh, mask);
2046 mps_update_events(struct mps_softc *sc, struct mps_event_handle *handle,
2049 MPI2_EVENT_NOTIFICATION_REQUEST *evtreq;
2050 MPI2_EVENT_NOTIFICATION_REPLY *reply;
2051 struct mps_command *cm;
2054 mps_dprint(sc, MPS_TRACE, "%s\n", __func__);
2056 if ((mask != NULL) && (handle != NULL))
2057 bcopy(mask, &handle->mask[0], sizeof(u32) *
2058 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS);
2060 for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++)
2061 sc->event_mask[i] = -1;
2063 for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++)
2064 sc->event_mask[i] &= ~handle->mask[i];
2067 if ((cm = mps_alloc_command(sc)) == NULL)
2069 evtreq = (MPI2_EVENT_NOTIFICATION_REQUEST *)cm->cm_req;
2070 evtreq->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
2071 evtreq->MsgFlags = 0;
2072 evtreq->SASBroadcastPrimitiveMasks = 0;
2073 #ifdef MPS_DEBUG_ALL_EVENTS
2075 u_char fullmask[16];
2076 memset(fullmask, 0x00, 16);
2077 bcopy(fullmask, &evtreq->EventMasks[0], sizeof(u32) *
2078 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS);
2081 for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++)
2082 evtreq->EventMasks[i] =
2083 htole32(sc->event_mask[i]);
2085 cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
2088 error = mps_request_polled(sc, cm);
2089 reply = (MPI2_EVENT_NOTIFICATION_REPLY *)cm->cm_reply;
2090 if ((reply == NULL) ||
2091 (reply->IOCStatus & MPI2_IOCSTATUS_MASK) != MPI2_IOCSTATUS_SUCCESS)
2093 mps_print_event(sc, reply);
2094 mps_dprint(sc, MPS_TRACE, "%s finished error %d\n", __func__, error);
2096 mps_free_command(sc, cm);
2101 mps_reregister_events(struct mps_softc *sc)
2103 MPI2_EVENT_NOTIFICATION_REQUEST *evtreq;
2104 struct mps_command *cm;
2105 struct mps_event_handle *eh;
2108 mps_dprint(sc, MPS_TRACE, "%s\n", __func__);
2110 /* first, reregister events */
2112 for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++)
2113 sc->event_mask[i] = -1;
2115 TAILQ_FOREACH(eh, &sc->event_list, eh_list) {
2116 for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++)
2117 sc->event_mask[i] &= ~eh->mask[i];
2120 if ((cm = mps_alloc_command(sc)) == NULL)
2122 evtreq = (MPI2_EVENT_NOTIFICATION_REQUEST *)cm->cm_req;
2123 evtreq->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
2124 evtreq->MsgFlags = 0;
2125 evtreq->SASBroadcastPrimitiveMasks = 0;
2126 #ifdef MPS_DEBUG_ALL_EVENTS
2128 u_char fullmask[16];
2129 memset(fullmask, 0x00, 16);
2130 bcopy(fullmask, &evtreq->EventMasks[0], sizeof(u32) *
2131 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS);
2134 for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++)
2135 evtreq->EventMasks[i] =
2136 htole32(sc->event_mask[i]);
2138 cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
2140 cm->cm_complete = mps_reregister_events_complete;
2142 error = mps_map_command(sc, cm);
2144 mps_dprint(sc, MPS_TRACE, "%s finished with error %d\n", __func__,
2150 mps_deregister_events(struct mps_softc *sc, struct mps_event_handle *handle)
2153 TAILQ_REMOVE(&sc->event_list, handle, eh_list);
2154 free(handle, M_MPT2);
2158 * Add a chain element as the next SGE for the specified command.
2159 * Reset cm_sge and cm_sgesize to indicate all the available space.
2162 mps_add_chain(struct mps_command *cm)
2164 MPI2_SGE_CHAIN32 *sgc;
2165 struct mps_chain *chain;
2168 if (cm->cm_sglsize < MPS_SGC_SIZE)
2169 panic("MPS: Need SGE Error Code\n");
2171 chain = mps_alloc_chain(cm->cm_sc);
2175 space = (int)cm->cm_sc->facts->IOCRequestFrameSize * 4;
2178 * Note: a double-linked list is used to make it easier to
2179 * walk for debugging.
2181 TAILQ_INSERT_TAIL(&cm->cm_chain_list, chain, chain_link);
2183 sgc = (MPI2_SGE_CHAIN32 *)&cm->cm_sge->MpiChain;
2184 sgc->Length = htole16(space);
2185 sgc->NextChainOffset = 0;
2186 /* TODO Looks like bug in Setting sgc->Flags.
2187 * sgc->Flags = ( MPI2_SGE_FLAGS_CHAIN_ELEMENT | MPI2_SGE_FLAGS_64_BIT_ADDRESSING |
2188 * MPI2_SGE_FLAGS_SYSTEM_ADDRESS) << MPI2_SGE_FLAGS_SHIFT
2189 * This is fine.. because we are not using simple element. In case of
2190 * MPI2_SGE_CHAIN32, we have seperate Length and Flags feild.
2192 sgc->Flags = MPI2_SGE_FLAGS_CHAIN_ELEMENT;
2193 sgc->Address = htole32(chain->chain_busaddr);
2195 cm->cm_sge = (MPI2_SGE_IO_UNION *)&chain->chain->MpiSimple;
2196 cm->cm_sglsize = space;
2201 * Add one scatter-gather element (chain, simple, transaction context)
2202 * to the scatter-gather list for a command. Maintain cm_sglsize and
2203 * cm_sge as the remaining size and pointer to the next SGE to fill
2207 mps_push_sge(struct mps_command *cm, void *sgep, size_t len, int segsleft)
2209 MPI2_SGE_TRANSACTION_UNION *tc = sgep;
2210 MPI2_SGE_SIMPLE64 *sge = sgep;
2212 uint32_t saved_buf_len, saved_address_low, saved_address_high;
2214 type = (tc->Flags & MPI2_SGE_FLAGS_ELEMENT_MASK);
2218 case MPI2_SGE_FLAGS_TRANSACTION_ELEMENT: {
2219 if (len != tc->DetailsLength + 4)
2220 panic("TC %p length %u or %zu?", tc,
2221 tc->DetailsLength + 4, len);
2224 case MPI2_SGE_FLAGS_CHAIN_ELEMENT:
2225 /* Driver only uses 32-bit chain elements */
2226 if (len != MPS_SGC_SIZE)
2227 panic("CHAIN %p length %u or %zu?", sgep,
2230 case MPI2_SGE_FLAGS_SIMPLE_ELEMENT:
2231 /* Driver only uses 64-bit SGE simple elements */
2232 if (len != MPS_SGE64_SIZE)
2233 panic("SGE simple %p length %u or %zu?", sge,
2234 MPS_SGE64_SIZE, len);
2235 if (((le32toh(sge->FlagsLength) >> MPI2_SGE_FLAGS_SHIFT) &
2236 MPI2_SGE_FLAGS_ADDRESS_SIZE) == 0)
2237 panic("SGE simple %p not marked 64-bit?", sge);
2241 panic("Unexpected SGE %p, flags %02x", tc, tc->Flags);
2246 * case 1: 1 more segment, enough room for it
2247 * case 2: 2 more segments, enough room for both
2248 * case 3: >=2 more segments, only enough room for 1 and a chain
2249 * case 4: >=1 more segment, enough room for only a chain
2250 * case 5: >=1 more segment, no room for anything (error)
2254 * There should be room for at least a chain element, or this
2255 * code is buggy. Case (5).
2257 if (cm->cm_sglsize < MPS_SGC_SIZE)
2258 panic("MPS: Need SGE Error Code\n");
2260 if (segsleft >= 2 &&
2261 cm->cm_sglsize < len + MPS_SGC_SIZE + MPS_SGE64_SIZE) {
2263 * There are 2 or more segments left to add, and only
2264 * enough room for 1 and a chain. Case (3).
2266 * Mark as last element in this chain if necessary.
2268 if (type == MPI2_SGE_FLAGS_SIMPLE_ELEMENT) {
2269 sge->FlagsLength |= htole32(
2270 MPI2_SGE_FLAGS_LAST_ELEMENT << MPI2_SGE_FLAGS_SHIFT);
2274 * Add the item then a chain. Do the chain now,
2275 * rather than on the next iteration, to simplify
2276 * understanding the code.
2278 cm->cm_sglsize -= len;
2279 bcopy(sgep, cm->cm_sge, len);
2280 cm->cm_sge = (MPI2_SGE_IO_UNION *)((uintptr_t)cm->cm_sge + len);
2281 return (mps_add_chain(cm));
2284 if (segsleft >= 1 && cm->cm_sglsize < len + MPS_SGC_SIZE) {
2286 * 1 or more segment, enough room for only a chain.
2287 * Hope the previous element wasn't a Simple entry
2288 * that needed to be marked with
2289 * MPI2_SGE_FLAGS_LAST_ELEMENT. Case (4).
2291 if ((error = mps_add_chain(cm)) != 0)
2296 /* Case 1: 1 more segment, enough room for it. */
2297 if (segsleft == 1 && cm->cm_sglsize < len)
2298 panic("1 seg left and no room? %u versus %zu",
2299 cm->cm_sglsize, len);
2301 /* Case 2: 2 more segments, enough room for both */
2302 if (segsleft == 2 && cm->cm_sglsize < len + MPS_SGE64_SIZE)
2303 panic("2 segs left and no room? %u versus %zu",
2304 cm->cm_sglsize, len);
2307 if (segsleft == 1 && type == MPI2_SGE_FLAGS_SIMPLE_ELEMENT) {
2309 * If this is a bi-directional request, need to account for that
2310 * here. Save the pre-filled sge values. These will be used
2311 * either for the 2nd SGL or for a single direction SGL. If
2312 * cm_out_len is non-zero, this is a bi-directional request, so
2313 * fill in the OUT SGL first, then the IN SGL, otherwise just
2314 * fill in the IN SGL. Note that at this time, when filling in
2315 * 2 SGL's for a bi-directional request, they both use the same
2316 * DMA buffer (same cm command).
2318 saved_buf_len = le32toh(sge->FlagsLength) & 0x00FFFFFF;
2319 saved_address_low = sge->Address.Low;
2320 saved_address_high = sge->Address.High;
2321 if (cm->cm_out_len) {
2322 sge->FlagsLength = htole32(cm->cm_out_len |
2323 ((uint32_t)(MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
2324 MPI2_SGE_FLAGS_END_OF_BUFFER |
2325 MPI2_SGE_FLAGS_HOST_TO_IOC |
2326 MPI2_SGE_FLAGS_64_BIT_ADDRESSING) <<
2327 MPI2_SGE_FLAGS_SHIFT));
2328 cm->cm_sglsize -= len;
2329 bcopy(sgep, cm->cm_sge, len);
2330 cm->cm_sge = (MPI2_SGE_IO_UNION *)((uintptr_t)cm->cm_sge
2334 ((uint32_t)(MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
2335 MPI2_SGE_FLAGS_END_OF_BUFFER |
2336 MPI2_SGE_FLAGS_LAST_ELEMENT |
2337 MPI2_SGE_FLAGS_END_OF_LIST |
2338 MPI2_SGE_FLAGS_64_BIT_ADDRESSING) <<
2339 MPI2_SGE_FLAGS_SHIFT);
2340 if (cm->cm_flags & MPS_CM_FLAGS_DATAIN) {
2342 ((uint32_t)(MPI2_SGE_FLAGS_IOC_TO_HOST) <<
2343 MPI2_SGE_FLAGS_SHIFT);
2346 ((uint32_t)(MPI2_SGE_FLAGS_HOST_TO_IOC) <<
2347 MPI2_SGE_FLAGS_SHIFT);
2349 sge->FlagsLength = htole32(saved_buf_len);
2350 sge->Address.Low = saved_address_low;
2351 sge->Address.High = saved_address_high;
2354 cm->cm_sglsize -= len;
2355 bcopy(sgep, cm->cm_sge, len);
2356 cm->cm_sge = (MPI2_SGE_IO_UNION *)((uintptr_t)cm->cm_sge + len);
2361 * Add one dma segment to the scatter-gather list for a command.
2364 mps_add_dmaseg(struct mps_command *cm, vm_paddr_t pa, size_t len, u_int flags,
2367 MPI2_SGE_SIMPLE64 sge;
2370 * This driver always uses 64-bit address elements for simplicity.
2372 bzero(&sge, sizeof(sge));
2373 flags |= MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
2374 MPI2_SGE_FLAGS_64_BIT_ADDRESSING;
2375 sge.FlagsLength = htole32(len | (flags << MPI2_SGE_FLAGS_SHIFT));
2376 mps_from_u64(pa, &sge.Address);
2378 return (mps_push_sge(cm, &sge, sizeof sge, segsleft));
2382 mps_data_cb(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
2384 struct mps_softc *sc;
2385 struct mps_command *cm;
2386 u_int i, dir, sflags;
2388 cm = (struct mps_command *)arg;
2392 * In this case, just print out a warning and let the chip tell the
2393 * user they did the wrong thing.
2395 if ((cm->cm_max_segs != 0) && (nsegs > cm->cm_max_segs)) {
2396 mps_dprint(sc, MPS_ERROR,
2397 "%s: warning: busdma returned %d segments, "
2398 "more than the %d allowed\n", __func__, nsegs,
2403 * Set up DMA direction flags. Bi-directional requests are also handled
2404 * here. In that case, both direction flags will be set.
2407 if (cm->cm_flags & MPS_CM_FLAGS_SMP_PASS) {
2409 * We have to add a special case for SMP passthrough, there
2410 * is no easy way to generically handle it. The first
2411 * S/G element is used for the command (therefore the
2412 * direction bit needs to be set). The second one is used
2413 * for the reply. We'll leave it to the caller to make
2414 * sure we only have two buffers.
2417 * Even though the busdma man page says it doesn't make
2418 * sense to have both direction flags, it does in this case.
2419 * We have one s/g element being accessed in each direction.
2421 dir = BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD;
2424 * Set the direction flag on the first buffer in the SMP
2425 * passthrough request. We'll clear it for the second one.
2427 sflags |= MPI2_SGE_FLAGS_DIRECTION |
2428 MPI2_SGE_FLAGS_END_OF_BUFFER;
2429 } else if (cm->cm_flags & MPS_CM_FLAGS_DATAOUT) {
2430 sflags |= MPI2_SGE_FLAGS_HOST_TO_IOC;
2431 dir = BUS_DMASYNC_PREWRITE;
2433 dir = BUS_DMASYNC_PREREAD;
2435 for (i = 0; i < nsegs; i++) {
2436 if ((cm->cm_flags & MPS_CM_FLAGS_SMP_PASS) && (i != 0)) {
2437 sflags &= ~MPI2_SGE_FLAGS_DIRECTION;
2439 error = mps_add_dmaseg(cm, segs[i].ds_addr, segs[i].ds_len,
2442 /* Resource shortage, roll back! */
2443 if (ratecheck(&sc->lastfail, &mps_chainfail_interval))
2444 mps_dprint(sc, MPS_INFO, "Out of chain frames, "
2445 "consider increasing hw.mps.max_chains.\n");
2446 cm->cm_flags |= MPS_CM_FLAGS_CHAIN_FAILED;
2447 mps_complete_command(sc, cm);
2452 bus_dmamap_sync(sc->buffer_dmat, cm->cm_dmamap, dir);
2453 mps_enqueue_request(sc, cm);
2459 mps_data_cb2(void *arg, bus_dma_segment_t *segs, int nsegs, bus_size_t mapsize,
2462 mps_data_cb(arg, segs, nsegs, error);
2466 * This is the routine to enqueue commands ansynchronously.
2467 * Note that the only error path here is from bus_dmamap_load(), which can
2468 * return EINPROGRESS if it is waiting for resources. Other than this, it's
2469 * assumed that if you have a command in-hand, then you have enough credits
2473 mps_map_command(struct mps_softc *sc, struct mps_command *cm)
2477 if (cm->cm_flags & MPS_CM_FLAGS_USE_UIO) {
2478 error = bus_dmamap_load_uio(sc->buffer_dmat, cm->cm_dmamap,
2479 &cm->cm_uio, mps_data_cb2, cm, 0);
2480 } else if (cm->cm_flags & MPS_CM_FLAGS_USE_CCB) {
2481 error = bus_dmamap_load_ccb(sc->buffer_dmat, cm->cm_dmamap,
2482 cm->cm_data, mps_data_cb, cm, 0);
2483 } else if ((cm->cm_data != NULL) && (cm->cm_length != 0)) {
2484 error = bus_dmamap_load(sc->buffer_dmat, cm->cm_dmamap,
2485 cm->cm_data, cm->cm_length, mps_data_cb, cm, 0);
2487 /* Add a zero-length element as needed */
2488 if (cm->cm_sge != NULL)
2489 mps_add_dmaseg(cm, 0, 0, 0, 1);
2490 mps_enqueue_request(sc, cm);
2497 * This is the routine to enqueue commands synchronously. An error of
2498 * EINPROGRESS from mps_map_command() is ignored since the command will
2499 * be executed and enqueued automatically. Other errors come from msleep().
2502 mps_wait_command(struct mps_softc *sc, struct mps_command *cm, int timeout,
2506 struct timeval cur_time, start_time;
2508 if (sc->mps_flags & MPS_FLAGS_DIAGRESET)
2511 cm->cm_complete = NULL;
2512 cm->cm_flags |= (MPS_CM_FLAGS_WAKEUP + MPS_CM_FLAGS_POLLED);
2513 error = mps_map_command(sc, cm);
2514 if ((error != 0) && (error != EINPROGRESS))
2517 // Check for context and wait for 50 mSec at a time until time has
2518 // expired or the command has finished. If msleep can't be used, need
2520 if (curthread->td_no_sleeping != 0)
2521 sleep_flag = NO_SLEEP;
2522 getmicrotime(&start_time);
2523 if (mtx_owned(&sc->mps_mtx) && sleep_flag == CAN_SLEEP) {
2524 error = msleep(cm, &sc->mps_mtx, 0, "mpswait", timeout*hz);
2526 while ((cm->cm_flags & MPS_CM_FLAGS_COMPLETE) == 0) {
2527 mps_intr_locked(sc);
2528 if (sleep_flag == CAN_SLEEP)
2529 pause("mpswait", hz/20);
2533 getmicrotime(&cur_time);
2534 if ((cur_time.tv_sec - start_time.tv_sec) > timeout) {
2535 error = EWOULDBLOCK;
2541 if (error == EWOULDBLOCK) {
2542 mps_dprint(sc, MPS_FAULT, "Calling Reinit from %s\n", __func__);
2543 rc = mps_reinit(sc);
2544 mps_dprint(sc, MPS_FAULT, "Reinit %s\n", (rc == 0) ? "success" :
2552 * This is the routine to enqueue a command synchonously and poll for
2553 * completion. Its use should be rare.
2556 mps_request_polled(struct mps_softc *sc, struct mps_command *cm)
2558 int error, timeout = 0, rc;
2559 struct timeval cur_time, start_time;
2563 cm->cm_flags |= MPS_CM_FLAGS_POLLED;
2564 cm->cm_complete = NULL;
2565 mps_map_command(sc, cm);
2567 getmicrotime(&start_time);
2568 while ((cm->cm_flags & MPS_CM_FLAGS_COMPLETE) == 0) {
2569 mps_intr_locked(sc);
2571 if (mtx_owned(&sc->mps_mtx))
2572 msleep(&sc->msleep_fake_chan, &sc->mps_mtx, 0,
2575 pause("mpsdiag", hz/20);
2578 * Check for real-time timeout and fail if more than 60 seconds.
2580 getmicrotime(&cur_time);
2581 timeout = cur_time.tv_sec - start_time.tv_sec;
2583 mps_dprint(sc, MPS_FAULT, "polling failed\n");
2590 mps_dprint(sc, MPS_FAULT, "Calling Reinit from %s\n", __func__);
2591 rc = mps_reinit(sc);
2592 mps_dprint(sc, MPS_FAULT, "Reinit %s\n", (rc == 0) ? "success" :
2600 * The MPT driver had a verbose interface for config pages. In this driver,
2601 * reduce it to much simplier terms, similar to the Linux driver.
2604 mps_read_config_page(struct mps_softc *sc, struct mps_config_params *params)
2606 MPI2_CONFIG_REQUEST *req;
2607 struct mps_command *cm;
2610 if (sc->mps_flags & MPS_FLAGS_BUSY) {
2614 cm = mps_alloc_command(sc);
2619 req = (MPI2_CONFIG_REQUEST *)cm->cm_req;
2620 req->Function = MPI2_FUNCTION_CONFIG;
2621 req->Action = params->action;
2623 req->ChainOffset = 0;
2624 req->PageAddress = params->page_address;
2625 if (params->hdr.Struct.PageType == MPI2_CONFIG_PAGETYPE_EXTENDED) {
2626 MPI2_CONFIG_EXTENDED_PAGE_HEADER *hdr;
2628 hdr = ¶ms->hdr.Ext;
2629 req->ExtPageType = hdr->ExtPageType;
2630 req->ExtPageLength = hdr->ExtPageLength;
2631 req->Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
2632 req->Header.PageLength = 0; /* Must be set to zero */
2633 req->Header.PageNumber = hdr->PageNumber;
2634 req->Header.PageVersion = hdr->PageVersion;
2636 MPI2_CONFIG_PAGE_HEADER *hdr;
2638 hdr = ¶ms->hdr.Struct;
2639 req->Header.PageType = hdr->PageType;
2640 req->Header.PageNumber = hdr->PageNumber;
2641 req->Header.PageLength = hdr->PageLength;
2642 req->Header.PageVersion = hdr->PageVersion;
2645 cm->cm_data = params->buffer;
2646 cm->cm_length = params->length;
2647 if (cm->cm_data != NULL) {
2648 cm->cm_sge = &req->PageBufferSGE;
2649 cm->cm_sglsize = sizeof(MPI2_SGE_IO_UNION);
2650 cm->cm_flags = MPS_CM_FLAGS_SGE_SIMPLE | MPS_CM_FLAGS_DATAIN;
2653 cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
2655 cm->cm_complete_data = params;
2656 if (params->callback != NULL) {
2657 cm->cm_complete = mps_config_complete;
2658 return (mps_map_command(sc, cm));
2660 error = mps_wait_command(sc, cm, 0, CAN_SLEEP);
2662 mps_dprint(sc, MPS_FAULT,
2663 "Error %d reading config page\n", error);
2664 mps_free_command(sc, cm);
2667 mps_config_complete(sc, cm);
2674 mps_write_config_page(struct mps_softc *sc, struct mps_config_params *params)
2680 mps_config_complete(struct mps_softc *sc, struct mps_command *cm)
2682 MPI2_CONFIG_REPLY *reply;
2683 struct mps_config_params *params;
2686 params = cm->cm_complete_data;
2688 if (cm->cm_data != NULL) {
2689 bus_dmamap_sync(sc->buffer_dmat, cm->cm_dmamap,
2690 BUS_DMASYNC_POSTREAD);
2691 bus_dmamap_unload(sc->buffer_dmat, cm->cm_dmamap);
2695 * XXX KDM need to do more error recovery? This results in the
2696 * device in question not getting probed.
2698 if ((cm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) {
2699 params->status = MPI2_IOCSTATUS_BUSY;
2703 reply = (MPI2_CONFIG_REPLY *)cm->cm_reply;
2704 if (reply == NULL) {
2705 params->status = MPI2_IOCSTATUS_BUSY;
2708 params->status = reply->IOCStatus;
2709 if (params->hdr.Struct.PageType == MPI2_CONFIG_PAGETYPE_EXTENDED) {
2710 params->hdr.Ext.ExtPageType = reply->ExtPageType;
2711 params->hdr.Ext.ExtPageLength = reply->ExtPageLength;
2712 params->hdr.Ext.PageType = reply->Header.PageType;
2713 params->hdr.Ext.PageNumber = reply->Header.PageNumber;
2714 params->hdr.Ext.PageVersion = reply->Header.PageVersion;
2716 params->hdr.Struct.PageType = reply->Header.PageType;
2717 params->hdr.Struct.PageNumber = reply->Header.PageNumber;
2718 params->hdr.Struct.PageLength = reply->Header.PageLength;
2719 params->hdr.Struct.PageVersion = reply->Header.PageVersion;
2723 mps_free_command(sc, cm);
2724 if (params->callback != NULL)
2725 params->callback(sc, params);