2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2009 Yahoo! Inc.
5 * Copyright (c) 2011-2015 LSI Corp.
6 * Copyright (c) 2013-2015 Avago Technologies
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * Avago Technologies (LSI) MPT-Fusion Host Adapter FreeBSD
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
38 /* Communications core for Avago Technologies (LSI) MPT2 */
40 /* TODO Move headers to mpsvar */
41 #include <sys/types.h>
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/kernel.h>
45 #include <sys/selinfo.h>
46 #include <sys/module.h>
50 #include <sys/malloc.h>
52 #include <sys/sysctl.h>
53 #include <sys/endian.h>
54 #include <sys/queue.h>
55 #include <sys/kthread.h>
56 #include <sys/taskqueue.h>
59 #include <machine/bus.h>
60 #include <machine/resource.h>
63 #include <machine/stdarg.h>
66 #include <cam/cam_ccb.h>
67 #include <cam/cam_xpt.h>
68 #include <cam/cam_debug.h>
69 #include <cam/cam_sim.h>
70 #include <cam/cam_xpt_sim.h>
71 #include <cam/cam_xpt_periph.h>
72 #include <cam/cam_periph.h>
73 #include <cam/scsi/scsi_all.h>
74 #include <cam/scsi/scsi_message.h>
75 #if __FreeBSD_version >= 900026
76 #include <cam/scsi/smp_all.h>
79 #include <dev/mps/mpi/mpi2_type.h>
80 #include <dev/mps/mpi/mpi2.h>
81 #include <dev/mps/mpi/mpi2_ioc.h>
82 #include <dev/mps/mpi/mpi2_sas.h>
83 #include <dev/mps/mpi/mpi2_cnfg.h>
84 #include <dev/mps/mpi/mpi2_init.h>
85 #include <dev/mps/mpi/mpi2_tool.h>
86 #include <dev/mps/mps_ioctl.h>
87 #include <dev/mps/mpsvar.h>
88 #include <dev/mps/mps_table.h>
89 #include <dev/mps/mps_sas.h>
91 #define MPSSAS_DISCOVERY_TIMEOUT 20
92 #define MPSSAS_MAX_DISCOVERY_TIMEOUTS 10 /* 200 seconds */
95 * static array to check SCSI OpCode for EEDP protection bits
97 #define PRO_R MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP
98 #define PRO_W MPI2_SCSIIO_EEDPFLAGS_INSERT_OP
99 #define PRO_V MPI2_SCSIIO_EEDPFLAGS_INSERT_OP
100 static uint8_t op_code_prot[256] = {
101 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
102 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
103 0, 0, 0, 0, 0, 0, 0, 0, PRO_R, 0, PRO_W, 0, 0, 0, PRO_W, PRO_V,
104 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
105 0, PRO_W, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
106 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
107 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
108 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
109 0, 0, 0, 0, 0, 0, 0, 0, PRO_R, 0, PRO_W, 0, 0, 0, PRO_W, PRO_V,
110 0, 0, 0, PRO_W, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
111 0, 0, 0, 0, 0, 0, 0, 0, PRO_R, 0, PRO_W, 0, 0, 0, PRO_W, PRO_V,
112 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
113 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
114 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
115 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
116 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
119 MALLOC_DEFINE(M_MPSSAS, "MPSSAS", "MPS SAS memory");
121 static void mpssas_remove_device(struct mps_softc *, struct mps_command *);
122 static void mpssas_remove_complete(struct mps_softc *, struct mps_command *);
123 static void mpssas_action(struct cam_sim *sim, union ccb *ccb);
124 static void mpssas_poll(struct cam_sim *sim);
125 static int mpssas_send_abort(struct mps_softc *sc, struct mps_command *tm,
126 struct mps_command *cm);
127 static void mpssas_scsiio_timeout(void *data);
128 static void mpssas_abort_complete(struct mps_softc *sc, struct mps_command *cm);
129 static void mpssas_direct_drive_io(struct mpssas_softc *sassc,
130 struct mps_command *cm, union ccb *ccb);
131 static void mpssas_action_scsiio(struct mpssas_softc *, union ccb *);
132 static void mpssas_scsiio_complete(struct mps_softc *, struct mps_command *);
133 static void mpssas_action_resetdev(struct mpssas_softc *, union ccb *);
134 #if __FreeBSD_version >= 900026
135 static void mpssas_smpio_complete(struct mps_softc *sc, struct mps_command *cm);
136 static void mpssas_send_smpcmd(struct mpssas_softc *sassc, union ccb *ccb,
138 static void mpssas_action_smpio(struct mpssas_softc *sassc, union ccb *ccb);
139 #endif //FreeBSD_version >= 900026
140 static void mpssas_resetdev_complete(struct mps_softc *, struct mps_command *);
141 static void mpssas_async(void *callback_arg, uint32_t code,
142 struct cam_path *path, void *arg);
143 #if (__FreeBSD_version < 901503) || \
144 ((__FreeBSD_version >= 1000000) && (__FreeBSD_version < 1000006))
145 static void mpssas_check_eedp(struct mps_softc *sc, struct cam_path *path,
146 struct ccb_getdev *cgd);
147 static void mpssas_read_cap_done(struct cam_periph *periph, union ccb *done_ccb);
149 static int mpssas_send_portenable(struct mps_softc *sc);
150 static void mpssas_portenable_complete(struct mps_softc *sc,
151 struct mps_command *cm);
153 struct mpssas_target *
154 mpssas_find_target_by_handle(struct mpssas_softc *sassc, int start, uint16_t handle)
156 struct mpssas_target *target;
159 for (i = start; i < sassc->maxtargets; i++) {
160 target = &sassc->targets[i];
161 if (target->handle == handle)
168 /* we need to freeze the simq during attach and diag reset, to avoid failing
169 * commands before device handles have been found by discovery. Since
170 * discovery involves reading config pages and possibly sending commands,
171 * discovery actions may continue even after we receive the end of discovery
172 * event, so refcount discovery actions instead of assuming we can unfreeze
173 * the simq when we get the event.
176 mpssas_startup_increment(struct mpssas_softc *sassc)
178 MPS_FUNCTRACE(sassc->sc);
180 if ((sassc->flags & MPSSAS_IN_STARTUP) != 0) {
181 if (sassc->startup_refcount++ == 0) {
182 /* just starting, freeze the simq */
183 mps_dprint(sassc->sc, MPS_INIT,
184 "%s freezing simq\n", __func__);
185 #if __FreeBSD_version >= 1000039
188 xpt_freeze_simq(sassc->sim, 1);
190 mps_dprint(sassc->sc, MPS_INIT, "%s refcount %u\n", __func__,
191 sassc->startup_refcount);
196 mpssas_release_simq_reinit(struct mpssas_softc *sassc)
198 if (sassc->flags & MPSSAS_QUEUE_FROZEN) {
199 sassc->flags &= ~MPSSAS_QUEUE_FROZEN;
200 xpt_release_simq(sassc->sim, 1);
201 mps_dprint(sassc->sc, MPS_INFO, "Unfreezing SIM queue\n");
206 mpssas_startup_decrement(struct mpssas_softc *sassc)
208 MPS_FUNCTRACE(sassc->sc);
210 if ((sassc->flags & MPSSAS_IN_STARTUP) != 0) {
211 if (--sassc->startup_refcount == 0) {
212 /* finished all discovery-related actions, release
213 * the simq and rescan for the latest topology.
215 mps_dprint(sassc->sc, MPS_INIT,
216 "%s releasing simq\n", __func__);
217 sassc->flags &= ~MPSSAS_IN_STARTUP;
218 xpt_release_simq(sassc->sim, 1);
219 #if __FreeBSD_version >= 1000039
222 mpssas_rescan_target(sassc->sc, NULL);
225 mps_dprint(sassc->sc, MPS_INIT, "%s refcount %u\n", __func__,
226 sassc->startup_refcount);
231 * The firmware requires us to stop sending commands when we're doing task
233 * XXX The logic for serializing the device has been made lazy and moved to
234 * mpssas_prepare_for_tm().
237 mpssas_alloc_tm(struct mps_softc *sc)
239 MPI2_SCSI_TASK_MANAGE_REQUEST *req;
240 struct mps_command *tm;
242 tm = mps_alloc_high_priority_command(sc);
246 req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req;
247 req->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
252 mpssas_free_tm(struct mps_softc *sc, struct mps_command *tm)
254 int target_id = 0xFFFFFFFF;
260 * For TM's the devq is frozen for the device. Unfreeze it here and
261 * free the resources used for freezing the devq. Must clear the
262 * INRESET flag as well or scsi I/O will not work.
264 if (tm->cm_targ != NULL) {
265 tm->cm_targ->flags &= ~MPSSAS_TARGET_INRESET;
266 target_id = tm->cm_targ->tid;
269 mps_dprint(sc, MPS_INFO, "Unfreezing devq for target ID %d\n",
271 xpt_release_devq(tm->cm_ccb->ccb_h.path, 1, TRUE);
272 xpt_free_path(tm->cm_ccb->ccb_h.path);
273 xpt_free_ccb(tm->cm_ccb);
276 mps_free_high_priority_command(sc, tm);
280 mpssas_rescan_target(struct mps_softc *sc, struct mpssas_target *targ)
282 struct mpssas_softc *sassc = sc->sassc;
284 target_id_t targetid;
288 pathid = cam_sim_path(sassc->sim);
290 targetid = CAM_TARGET_WILDCARD;
292 targetid = targ - sassc->targets;
295 * Allocate a CCB and schedule a rescan.
297 ccb = xpt_alloc_ccb_nowait();
299 mps_dprint(sc, MPS_ERROR, "unable to alloc CCB for rescan\n");
303 if (xpt_create_path(&ccb->ccb_h.path, NULL, pathid,
304 targetid, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
305 mps_dprint(sc, MPS_ERROR, "unable to create path for rescan\n");
310 if (targetid == CAM_TARGET_WILDCARD)
311 ccb->ccb_h.func_code = XPT_SCAN_BUS;
313 ccb->ccb_h.func_code = XPT_SCAN_TGT;
315 mps_dprint(sc, MPS_TRACE, "%s targetid %u\n", __func__, targetid);
320 mpssas_log_command(struct mps_command *cm, u_int level, const char *fmt, ...)
330 /* No need to be in here if debugging isn't enabled */
331 if ((cm->cm_sc->mps_debug & level) == 0)
334 sbuf_new(&sb, str, sizeof(str), 0);
338 if (cm->cm_ccb != NULL) {
339 xpt_path_string(cm->cm_ccb->csio.ccb_h.path, path_str,
341 sbuf_cat(&sb, path_str);
342 if (cm->cm_ccb->ccb_h.func_code == XPT_SCSI_IO) {
343 scsi_command_string(&cm->cm_ccb->csio, &sb);
344 sbuf_printf(&sb, "length %d ",
345 cm->cm_ccb->csio.dxfer_len);
349 sbuf_printf(&sb, "(noperiph:%s%d:%u:%u:%u): ",
350 cam_sim_name(cm->cm_sc->sassc->sim),
351 cam_sim_unit(cm->cm_sc->sassc->sim),
352 cam_sim_bus(cm->cm_sc->sassc->sim),
353 cm->cm_targ ? cm->cm_targ->tid : 0xFFFFFFFF,
357 sbuf_printf(&sb, "SMID %u ", cm->cm_desc.Default.SMID);
358 sbuf_vprintf(&sb, fmt, ap);
360 mps_print_field(cm->cm_sc, "%s", sbuf_data(&sb));
367 mpssas_remove_volume(struct mps_softc *sc, struct mps_command *tm)
369 MPI2_SCSI_TASK_MANAGE_REPLY *reply;
370 struct mpssas_target *targ;
375 reply = (MPI2_SCSI_TASK_MANAGE_REPLY *)tm->cm_reply;
376 handle = (uint16_t)(uintptr_t)tm->cm_complete_data;
380 /* XXX retry the remove after the diag reset completes? */
381 mps_dprint(sc, MPS_FAULT,
382 "%s NULL reply resetting device 0x%04x\n", __func__,
384 mpssas_free_tm(sc, tm);
388 if ((le16toh(reply->IOCStatus) & MPI2_IOCSTATUS_MASK) !=
389 MPI2_IOCSTATUS_SUCCESS) {
390 mps_dprint(sc, MPS_ERROR,
391 "IOCStatus = 0x%x while resetting device 0x%x\n",
392 le16toh(reply->IOCStatus), handle);
395 mps_dprint(sc, MPS_XINFO,
396 "Reset aborted %u commands\n", reply->TerminationCount);
397 mps_free_reply(sc, tm->cm_reply_data);
398 tm->cm_reply = NULL; /* Ensures the reply won't get re-freed */
400 mps_dprint(sc, MPS_XINFO,
401 "clearing target %u handle 0x%04x\n", targ->tid, handle);
404 * Don't clear target if remove fails because things will get confusing.
405 * Leave the devname and sasaddr intact so that we know to avoid reusing
406 * this target id if possible, and so we can assign the same target id
407 * to this device if it comes back in the future.
409 if ((le16toh(reply->IOCStatus) & MPI2_IOCSTATUS_MASK) ==
410 MPI2_IOCSTATUS_SUCCESS) {
413 targ->encl_handle = 0x0;
414 targ->encl_slot = 0x0;
415 targ->exp_dev_handle = 0x0;
417 targ->linkrate = 0x0;
422 mpssas_free_tm(sc, tm);
427 * No Need to call "MPI2_SAS_OP_REMOVE_DEVICE" For Volume removal.
428 * Otherwise Volume Delete is same as Bare Drive Removal.
431 mpssas_prepare_volume_remove(struct mpssas_softc *sassc, uint16_t handle)
433 MPI2_SCSI_TASK_MANAGE_REQUEST *req;
434 struct mps_softc *sc;
435 struct mps_command *tm;
436 struct mpssas_target *targ = NULL;
438 MPS_FUNCTRACE(sassc->sc);
443 * If this is a WD controller, determine if the disk should be exposed
444 * to the OS or not. If disk should be exposed, return from this
445 * function without doing anything.
447 if (sc->WD_available && (sc->WD_hide_expose ==
448 MPS_WD_EXPOSE_ALWAYS)) {
453 targ = mpssas_find_target_by_handle(sassc, 0, handle);
455 /* FIXME: what is the action? */
456 /* We don't know about this device? */
457 mps_dprint(sc, MPS_ERROR,
458 "%s %d : invalid handle 0x%x \n", __func__,__LINE__, handle);
462 targ->flags |= MPSSAS_TARGET_INREMOVAL;
464 tm = mpssas_alloc_tm(sc);
466 mps_dprint(sc, MPS_ERROR,
467 "%s: command alloc failure\n", __func__);
471 mpssas_rescan_target(sc, targ);
473 req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req;
474 req->DevHandle = targ->handle;
475 req->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
477 /* SAS Hard Link Reset / SATA Link Reset */
478 req->MsgFlags = MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET;
482 tm->cm_complete = mpssas_remove_volume;
483 tm->cm_complete_data = (void *)(uintptr_t)handle;
485 mps_dprint(sc, MPS_INFO, "%s: Sending reset for target ID %d\n",
486 __func__, targ->tid);
487 mpssas_prepare_for_tm(sc, tm, targ, CAM_LUN_WILDCARD);
489 mps_map_command(sc, tm);
493 * The MPT2 firmware performs debounce on the link to avoid transient link
494 * errors and false removals. When it does decide that link has been lost
495 * and a device need to go away, it expects that the host will perform a
496 * target reset and then an op remove. The reset has the side-effect of
497 * aborting any outstanding requests for the device, which is required for
498 * the op-remove to succeed. It's not clear if the host should check for
499 * the device coming back alive after the reset.
502 mpssas_prepare_remove(struct mpssas_softc *sassc, uint16_t handle)
504 MPI2_SCSI_TASK_MANAGE_REQUEST *req;
505 struct mps_softc *sc;
506 struct mps_command *cm;
507 struct mpssas_target *targ = NULL;
509 MPS_FUNCTRACE(sassc->sc);
513 targ = mpssas_find_target_by_handle(sassc, 0, handle);
515 /* FIXME: what is the action? */
516 /* We don't know about this device? */
517 mps_dprint(sc, MPS_ERROR,
518 "%s : invalid handle 0x%x \n", __func__, handle);
522 targ->flags |= MPSSAS_TARGET_INREMOVAL;
524 cm = mpssas_alloc_tm(sc);
526 mps_dprint(sc, MPS_ERROR,
527 "%s: command alloc failure\n", __func__);
531 mpssas_rescan_target(sc, targ);
533 req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)cm->cm_req;
534 memset(req, 0, sizeof(*req));
535 req->DevHandle = htole16(targ->handle);
536 req->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
538 /* SAS Hard Link Reset / SATA Link Reset */
539 req->MsgFlags = MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET;
543 cm->cm_complete = mpssas_remove_device;
544 cm->cm_complete_data = (void *)(uintptr_t)handle;
546 mps_dprint(sc, MPS_INFO, "%s: Sending reset for target ID %d\n",
547 __func__, targ->tid);
548 mpssas_prepare_for_tm(sc, cm, targ, CAM_LUN_WILDCARD);
550 mps_map_command(sc, cm);
554 mpssas_remove_device(struct mps_softc *sc, struct mps_command *tm)
556 MPI2_SCSI_TASK_MANAGE_REPLY *reply;
557 MPI2_SAS_IOUNIT_CONTROL_REQUEST *req;
558 struct mpssas_target *targ;
559 struct mps_command *next_cm;
564 reply = (MPI2_SCSI_TASK_MANAGE_REPLY *)tm->cm_reply;
565 handle = (uint16_t)(uintptr_t)tm->cm_complete_data;
569 * Currently there should be no way we can hit this case. It only
570 * happens when we have a failure to allocate chain frames, and
571 * task management commands don't have S/G lists.
573 if ((tm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) {
574 mps_dprint(sc, MPS_ERROR,
575 "%s: cm_flags = %#x for remove of handle %#04x! "
576 "This should not happen!\n", __func__, tm->cm_flags,
581 /* XXX retry the remove after the diag reset completes? */
582 mps_dprint(sc, MPS_FAULT,
583 "%s NULL reply resetting device 0x%04x\n", __func__,
585 mpssas_free_tm(sc, tm);
589 if ((le16toh(reply->IOCStatus) & MPI2_IOCSTATUS_MASK) !=
590 MPI2_IOCSTATUS_SUCCESS) {
591 mps_dprint(sc, MPS_ERROR,
592 "IOCStatus = 0x%x while resetting device 0x%x\n",
593 le16toh(reply->IOCStatus), handle);
596 mps_dprint(sc, MPS_XINFO, "Reset aborted %u commands\n",
597 le32toh(reply->TerminationCount));
598 mps_free_reply(sc, tm->cm_reply_data);
599 tm->cm_reply = NULL; /* Ensures the reply won't get re-freed */
601 /* Reuse the existing command */
602 req = (MPI2_SAS_IOUNIT_CONTROL_REQUEST *)tm->cm_req;
603 memset(req, 0, sizeof(*req));
604 req->Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
605 req->Operation = MPI2_SAS_OP_REMOVE_DEVICE;
606 req->DevHandle = htole16(handle);
608 tm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
609 tm->cm_complete = mpssas_remove_complete;
610 tm->cm_complete_data = (void *)(uintptr_t)handle;
612 mps_map_command(sc, tm);
614 mps_dprint(sc, MPS_XINFO, "clearing target %u handle 0x%04x\n",
616 TAILQ_FOREACH_SAFE(tm, &targ->commands, cm_link, next_cm) {
619 mps_dprint(sc, MPS_XINFO, "Completing missed command %p\n", tm);
620 ccb = tm->cm_complete_data;
621 mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE);
622 tm->cm_state = MPS_CM_STATE_BUSY;
623 mpssas_scsiio_complete(sc, tm);
628 mpssas_remove_complete(struct mps_softc *sc, struct mps_command *tm)
630 MPI2_SAS_IOUNIT_CONTROL_REPLY *reply;
632 struct mpssas_target *targ;
633 struct mpssas_lun *lun;
637 reply = (MPI2_SAS_IOUNIT_CONTROL_REPLY *)tm->cm_reply;
638 handle = (uint16_t)(uintptr_t)tm->cm_complete_data;
641 * Currently there should be no way we can hit this case. It only
642 * happens when we have a failure to allocate chain frames, and
643 * task management commands don't have S/G lists.
645 if ((tm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) {
646 mps_dprint(sc, MPS_XINFO,
647 "%s: cm_flags = %#x for remove of handle %#04x! "
648 "This should not happen!\n", __func__, tm->cm_flags,
650 mpssas_free_tm(sc, tm);
655 /* most likely a chip reset */
656 mps_dprint(sc, MPS_FAULT,
657 "%s NULL reply removing device 0x%04x\n", __func__, handle);
658 mpssas_free_tm(sc, tm);
662 mps_dprint(sc, MPS_XINFO,
663 "%s on handle 0x%04x, IOCStatus= 0x%x\n", __func__,
664 handle, le16toh(reply->IOCStatus));
667 * Don't clear target if remove fails because things will get confusing.
668 * Leave the devname and sasaddr intact so that we know to avoid reusing
669 * this target id if possible, and so we can assign the same target id
670 * to this device if it comes back in the future.
672 if ((le16toh(reply->IOCStatus) & MPI2_IOCSTATUS_MASK) ==
673 MPI2_IOCSTATUS_SUCCESS) {
676 targ->encl_handle = 0x0;
677 targ->encl_slot = 0x0;
678 targ->exp_dev_handle = 0x0;
680 targ->linkrate = 0x0;
684 while(!SLIST_EMPTY(&targ->luns)) {
685 lun = SLIST_FIRST(&targ->luns);
686 SLIST_REMOVE_HEAD(&targ->luns, lun_link);
692 mpssas_free_tm(sc, tm);
696 mpssas_register_events(struct mps_softc *sc)
698 u32 events[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS];
701 setbit(events, MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
702 setbit(events, MPI2_EVENT_SAS_DISCOVERY);
703 setbit(events, MPI2_EVENT_SAS_BROADCAST_PRIMITIVE);
704 setbit(events, MPI2_EVENT_SAS_INIT_DEVICE_STATUS_CHANGE);
705 setbit(events, MPI2_EVENT_SAS_INIT_TABLE_OVERFLOW);
706 setbit(events, MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST);
707 setbit(events, MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE);
708 setbit(events, MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST);
709 setbit(events, MPI2_EVENT_IR_VOLUME);
710 setbit(events, MPI2_EVENT_IR_PHYSICAL_DISK);
711 setbit(events, MPI2_EVENT_IR_OPERATION_STATUS);
712 setbit(events, MPI2_EVENT_LOG_ENTRY_ADDED);
714 mps_register_events(sc, events, mpssas_evt_handler, NULL,
715 &sc->sassc->mpssas_eh);
721 mps_attach_sas(struct mps_softc *sc)
723 struct mpssas_softc *sassc;
725 int unit, error = 0, reqs;
728 mps_dprint(sc, MPS_INIT, "%s entered\n", __func__);
730 sassc = malloc(sizeof(struct mpssas_softc), M_MPT2, M_WAITOK|M_ZERO);
732 mps_dprint(sc, MPS_INIT|MPS_ERROR,
733 "Cannot allocate SAS controller memory\n");
738 * XXX MaxTargets could change during a reinit. Since we don't
739 * resize the targets[] array during such an event, cache the value
740 * of MaxTargets here so that we don't get into trouble later. This
741 * should move into the reinit logic.
743 sassc->maxtargets = sc->facts->MaxTargets + sc->facts->MaxVolumes;
744 sassc->targets = malloc(sizeof(struct mpssas_target) *
745 sassc->maxtargets, M_MPT2, M_WAITOK|M_ZERO);
746 if(!sassc->targets) {
747 mps_dprint(sc, MPS_INIT|MPS_ERROR,
748 "Cannot allocate SAS target memory\n");
755 reqs = sc->num_reqs - sc->num_prireqs - 1;
756 if ((sassc->devq = cam_simq_alloc(reqs)) == NULL) {
757 mps_dprint(sc, MPS_ERROR, "Cannot allocate SIMQ\n");
762 unit = device_get_unit(sc->mps_dev);
763 sassc->sim = cam_sim_alloc(mpssas_action, mpssas_poll, "mps", sassc,
764 unit, &sc->mps_mtx, reqs, reqs, sassc->devq);
765 if (sassc->sim == NULL) {
766 mps_dprint(sc, MPS_INIT|MPS_ERROR, "Cannot allocate SIM\n");
771 TAILQ_INIT(&sassc->ev_queue);
773 /* Initialize taskqueue for Event Handling */
774 TASK_INIT(&sassc->ev_task, 0, mpssas_firmware_event_work, sc);
775 sassc->ev_tq = taskqueue_create("mps_taskq", M_NOWAIT | M_ZERO,
776 taskqueue_thread_enqueue, &sassc->ev_tq);
777 taskqueue_start_threads(&sassc->ev_tq, 1, PRIBIO, "%s taskq",
778 device_get_nameunit(sc->mps_dev));
783 * XXX There should be a bus for every port on the adapter, but since
784 * we're just going to fake the topology for now, we'll pretend that
785 * everything is just a target on a single bus.
787 if ((error = xpt_bus_register(sassc->sim, sc->mps_dev, 0)) != 0) {
788 mps_dprint(sc, MPS_INIT|MPS_ERROR,
789 "Error %d registering SCSI bus\n", error);
795 * Assume that discovery events will start right away.
797 * Hold off boot until discovery is complete.
799 sassc->flags |= MPSSAS_IN_STARTUP | MPSSAS_IN_DISCOVERY;
800 sc->sassc->startup_refcount = 0;
801 mpssas_startup_increment(sassc);
803 callout_init(&sassc->discovery_callout, 1 /*mpsafe*/);
806 * Register for async events so we can determine the EEDP
807 * capabilities of devices.
809 status = xpt_create_path(&sassc->path, /*periph*/NULL,
810 cam_sim_path(sc->sassc->sim), CAM_TARGET_WILDCARD,
812 if (status != CAM_REQ_CMP) {
813 mps_dprint(sc, MPS_ERROR|MPS_INIT,
814 "Error %#x creating sim path\n", status);
819 #if (__FreeBSD_version >= 1000006) || \
820 ((__FreeBSD_version >= 901503) && (__FreeBSD_version < 1000000))
821 event = AC_ADVINFO_CHANGED;
823 event = AC_FOUND_DEVICE;
825 status = xpt_register_async(event, mpssas_async, sc,
827 if (status != CAM_REQ_CMP) {
828 mps_dprint(sc, MPS_ERROR,
829 "Error %#x registering async handler for "
830 "AC_ADVINFO_CHANGED events\n", status);
831 xpt_free_path(sassc->path);
835 if (status != CAM_REQ_CMP) {
837 * EEDP use is the exception, not the rule.
838 * Warn the user, but do not fail to attach.
840 mps_printf(sc, "EEDP capabilities disabled.\n");
845 mpssas_register_events(sc);
850 mps_dprint(sc, MPS_INIT, "%s exit error= %d\n", __func__, error);
855 mps_detach_sas(struct mps_softc *sc)
857 struct mpssas_softc *sassc;
858 struct mpssas_lun *lun, *lun_tmp;
859 struct mpssas_target *targ;
864 if (sc->sassc == NULL)
868 mps_deregister_events(sc, sassc->mpssas_eh);
871 * Drain and free the event handling taskqueue with the lock
872 * unheld so that any parallel processing tasks drain properly
873 * without deadlocking.
875 if (sassc->ev_tq != NULL)
876 taskqueue_free(sassc->ev_tq);
878 /* Make sure CAM doesn't wedge if we had to bail out early. */
881 while (sassc->startup_refcount != 0)
882 mpssas_startup_decrement(sassc);
884 /* Deregister our async handler */
885 if (sassc->path != NULL) {
886 xpt_register_async(0, mpssas_async, sc, sassc->path);
887 xpt_free_path(sassc->path);
891 if (sassc->flags & MPSSAS_IN_STARTUP)
892 xpt_release_simq(sassc->sim, 1);
894 if (sassc->sim != NULL) {
895 xpt_bus_deregister(cam_sim_path(sassc->sim));
896 cam_sim_free(sassc->sim, FALSE);
901 if (sassc->devq != NULL)
902 cam_simq_free(sassc->devq);
904 for(i=0; i< sassc->maxtargets ;i++) {
905 targ = &sassc->targets[i];
906 SLIST_FOREACH_SAFE(lun, &targ->luns, lun_link, lun_tmp) {
910 free(sassc->targets, M_MPT2);
918 mpssas_discovery_end(struct mpssas_softc *sassc)
920 struct mps_softc *sc = sassc->sc;
924 if (sassc->flags & MPSSAS_DISCOVERY_TIMEOUT_PENDING)
925 callout_stop(&sassc->discovery_callout);
928 * After discovery has completed, check the mapping table for any
929 * missing devices and update their missing counts. Only do this once
930 * whenever the driver is initialized so that missing counts aren't
931 * updated unnecessarily. Note that just because discovery has
932 * completed doesn't mean that events have been processed yet. The
933 * check_devices function is a callout timer that checks if ALL devices
934 * are missing. If so, it will wait a little longer for events to
935 * complete and keep resetting itself until some device in the mapping
936 * table is not missing, meaning that event processing has started.
938 if (sc->track_mapping_events) {
939 mps_dprint(sc, MPS_XINFO | MPS_MAPPING, "Discovery has "
940 "completed. Check for missing devices in the mapping "
942 callout_reset(&sc->device_check_callout,
943 MPS_MISSING_CHECK_DELAY * hz, mps_mapping_check_devices,
949 mpssas_action(struct cam_sim *sim, union ccb *ccb)
951 struct mpssas_softc *sassc;
953 sassc = cam_sim_softc(sim);
955 MPS_FUNCTRACE(sassc->sc);
956 mps_dprint(sassc->sc, MPS_TRACE, "ccb func_code 0x%x\n",
957 ccb->ccb_h.func_code);
958 mtx_assert(&sassc->sc->mps_mtx, MA_OWNED);
960 switch (ccb->ccb_h.func_code) {
963 struct ccb_pathinq *cpi = &ccb->cpi;
964 struct mps_softc *sc = sassc->sc;
966 cpi->version_num = 1;
967 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
968 cpi->target_sprt = 0;
969 #if __FreeBSD_version >= 1000039
970 cpi->hba_misc = PIM_NOBUSRESET | PIM_UNMAPPED | PIM_NOSCAN;
972 cpi->hba_misc = PIM_NOBUSRESET | PIM_UNMAPPED;
974 cpi->hba_eng_cnt = 0;
975 cpi->max_target = sassc->maxtargets - 1;
979 * initiator_id is set here to an ID outside the set of valid
980 * target IDs (including volumes).
982 cpi->initiator_id = sassc->maxtargets;
983 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
984 strlcpy(cpi->hba_vid, "Avago Tech", HBA_IDLEN);
985 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
986 cpi->unit_number = cam_sim_unit(sim);
987 cpi->bus_id = cam_sim_bus(sim);
988 cpi->base_transfer_speed = 150000;
989 cpi->transport = XPORT_SAS;
990 cpi->transport_version = 0;
991 cpi->protocol = PROTO_SCSI;
992 cpi->protocol_version = SCSI_REV_SPC;
993 cpi->maxio = sc->maxio;
994 mpssas_set_ccbstatus(ccb, CAM_REQ_CMP);
997 case XPT_GET_TRAN_SETTINGS:
999 struct ccb_trans_settings *cts;
1000 struct ccb_trans_settings_sas *sas;
1001 struct ccb_trans_settings_scsi *scsi;
1002 struct mpssas_target *targ;
1005 sas = &cts->xport_specific.sas;
1006 scsi = &cts->proto_specific.scsi;
1008 KASSERT(cts->ccb_h.target_id < sassc->maxtargets,
1009 ("Target %d out of bounds in XPT_GET_TRANS_SETTINGS\n",
1010 cts->ccb_h.target_id));
1011 targ = &sassc->targets[cts->ccb_h.target_id];
1012 if (targ->handle == 0x0) {
1013 mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE);
1017 cts->protocol_version = SCSI_REV_SPC2;
1018 cts->transport = XPORT_SAS;
1019 cts->transport_version = 0;
1021 sas->valid = CTS_SAS_VALID_SPEED;
1022 switch (targ->linkrate) {
1024 sas->bitrate = 150000;
1027 sas->bitrate = 300000;
1030 sas->bitrate = 600000;
1036 cts->protocol = PROTO_SCSI;
1037 scsi->valid = CTS_SCSI_VALID_TQ;
1038 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
1040 mpssas_set_ccbstatus(ccb, CAM_REQ_CMP);
1043 case XPT_CALC_GEOMETRY:
1044 cam_calc_geometry(&ccb->ccg, /*extended*/1);
1045 mpssas_set_ccbstatus(ccb, CAM_REQ_CMP);
1048 mps_dprint(sassc->sc, MPS_XINFO, "mpssas_action XPT_RESET_DEV\n");
1049 mpssas_action_resetdev(sassc, ccb);
1054 mps_dprint(sassc->sc, MPS_XINFO,
1055 "mpssas_action faking success for abort or reset\n");
1056 mpssas_set_ccbstatus(ccb, CAM_REQ_CMP);
1059 mpssas_action_scsiio(sassc, ccb);
1061 #if __FreeBSD_version >= 900026
1063 mpssas_action_smpio(sassc, ccb);
1067 mpssas_set_ccbstatus(ccb, CAM_FUNC_NOTAVAIL);
1075 mpssas_announce_reset(struct mps_softc *sc, uint32_t ac_code,
1076 target_id_t target_id, lun_id_t lun_id)
1078 path_id_t path_id = cam_sim_path(sc->sassc->sim);
1079 struct cam_path *path;
1081 mps_dprint(sc, MPS_XINFO, "%s code %x target %d lun %jx\n", __func__,
1082 ac_code, target_id, (uintmax_t)lun_id);
1084 if (xpt_create_path(&path, NULL,
1085 path_id, target_id, lun_id) != CAM_REQ_CMP) {
1086 mps_dprint(sc, MPS_ERROR, "unable to create path for reset "
1091 xpt_async(ac_code, path, NULL);
1092 xpt_free_path(path);
1096 mpssas_complete_all_commands(struct mps_softc *sc)
1098 struct mps_command *cm;
1103 mtx_assert(&sc->mps_mtx, MA_OWNED);
1105 /* complete all commands with a NULL reply */
1106 for (i = 1; i < sc->num_reqs; i++) {
1107 cm = &sc->commands[i];
1108 if (cm->cm_state == MPS_CM_STATE_FREE)
1111 cm->cm_state = MPS_CM_STATE_BUSY;
1112 cm->cm_reply = NULL;
1115 if (cm->cm_flags & MPS_CM_FLAGS_SATA_ID_TIMEOUT) {
1117 free(cm->cm_data, M_MPT2);
1121 if (cm->cm_flags & MPS_CM_FLAGS_POLLED)
1122 cm->cm_flags |= MPS_CM_FLAGS_COMPLETE;
1124 if (cm->cm_complete != NULL) {
1125 mpssas_log_command(cm, MPS_RECOVERY,
1126 "completing cm %p state %x ccb %p for diag reset\n",
1127 cm, cm->cm_state, cm->cm_ccb);
1129 cm->cm_complete(sc, cm);
1131 } else if (cm->cm_flags & MPS_CM_FLAGS_WAKEUP) {
1132 mpssas_log_command(cm, MPS_RECOVERY,
1133 "waking up cm %p state %x ccb %p for diag reset\n",
1134 cm, cm->cm_state, cm->cm_ccb);
1139 if ((completed == 0) && (cm->cm_state != MPS_CM_STATE_FREE)) {
1140 /* this should never happen, but if it does, log */
1141 mpssas_log_command(cm, MPS_RECOVERY,
1142 "cm %p state %x flags 0x%x ccb %p during diag "
1143 "reset\n", cm, cm->cm_state, cm->cm_flags,
1148 sc->io_cmds_active = 0;
1152 mpssas_handle_reinit(struct mps_softc *sc)
1156 /* Go back into startup mode and freeze the simq, so that CAM
1157 * doesn't send any commands until after we've rediscovered all
1158 * targets and found the proper device handles for them.
1160 * After the reset, portenable will trigger discovery, and after all
1161 * discovery-related activities have finished, the simq will be
1164 mps_dprint(sc, MPS_INIT, "%s startup\n", __func__);
1165 sc->sassc->flags |= MPSSAS_IN_STARTUP;
1166 sc->sassc->flags |= MPSSAS_IN_DISCOVERY;
1167 mpssas_startup_increment(sc->sassc);
1169 /* notify CAM of a bus reset */
1170 mpssas_announce_reset(sc, AC_BUS_RESET, CAM_TARGET_WILDCARD,
1173 /* complete and cleanup after all outstanding commands */
1174 mpssas_complete_all_commands(sc);
1176 mps_dprint(sc, MPS_INIT,
1177 "%s startup %u after command completion\n", __func__,
1178 sc->sassc->startup_refcount);
1180 /* zero all the target handles, since they may change after the
1181 * reset, and we have to rediscover all the targets and use the new
1184 for (i = 0; i < sc->sassc->maxtargets; i++) {
1185 if (sc->sassc->targets[i].outstanding != 0)
1186 mps_dprint(sc, MPS_INIT, "target %u outstanding %u\n",
1187 i, sc->sassc->targets[i].outstanding);
1188 sc->sassc->targets[i].handle = 0x0;
1189 sc->sassc->targets[i].exp_dev_handle = 0x0;
1190 sc->sassc->targets[i].outstanding = 0;
1191 sc->sassc->targets[i].flags = MPSSAS_TARGET_INDIAGRESET;
1196 mpssas_tm_timeout(void *data)
1198 struct mps_command *tm = data;
1199 struct mps_softc *sc = tm->cm_sc;
1201 mtx_assert(&sc->mps_mtx, MA_OWNED);
1203 mpssas_log_command(tm, MPS_INFO|MPS_RECOVERY,
1204 "task mgmt %p timed out\n", tm);
1206 KASSERT(tm->cm_state == MPS_CM_STATE_INQUEUE,
1207 ("command not inqueue\n"));
1209 tm->cm_state = MPS_CM_STATE_BUSY;
1214 mpssas_logical_unit_reset_complete(struct mps_softc *sc, struct mps_command *tm)
1216 MPI2_SCSI_TASK_MANAGE_REPLY *reply;
1217 MPI2_SCSI_TASK_MANAGE_REQUEST *req;
1218 unsigned int cm_count = 0;
1219 struct mps_command *cm;
1220 struct mpssas_target *targ;
1222 callout_stop(&tm->cm_callout);
1224 req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req;
1225 reply = (MPI2_SCSI_TASK_MANAGE_REPLY *)tm->cm_reply;
1229 * Currently there should be no way we can hit this case. It only
1230 * happens when we have a failure to allocate chain frames, and
1231 * task management commands don't have S/G lists.
1232 * XXXSL So should it be an assertion?
1234 if ((tm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) {
1235 mps_dprint(sc, MPS_RECOVERY|MPS_ERROR,
1236 "%s: cm_flags = %#x for LUN reset! "
1237 "This should not happen!\n", __func__, tm->cm_flags);
1238 mpssas_free_tm(sc, tm);
1242 if (reply == NULL) {
1243 mps_dprint(sc, MPS_RECOVERY, "NULL reset reply for tm %p\n",
1245 if ((sc->mps_flags & MPS_FLAGS_DIAGRESET) != 0) {
1246 /* this completion was due to a reset, just cleanup */
1247 mps_dprint(sc, MPS_RECOVERY, "Hardware undergoing "
1248 "reset, ignoring NULL LUN reset reply\n");
1250 mpssas_free_tm(sc, tm);
1253 /* we should have gotten a reply. */
1254 mps_dprint(sc, MPS_INFO|MPS_RECOVERY, "NULL reply on "
1255 "LUN reset attempt, resetting controller\n");
1261 mps_dprint(sc, MPS_RECOVERY,
1262 "logical unit reset status 0x%x code 0x%x count %u\n",
1263 le16toh(reply->IOCStatus), le32toh(reply->ResponseCode),
1264 le32toh(reply->TerminationCount));
1267 * See if there are any outstanding commands for this LUN.
1268 * This could be made more efficient by using a per-LU data
1269 * structure of some sort.
1271 TAILQ_FOREACH(cm, &targ->commands, cm_link) {
1272 if (cm->cm_lun == tm->cm_lun)
1276 if (cm_count == 0) {
1277 mps_dprint(sc, MPS_RECOVERY|MPS_INFO,
1278 "Finished recovery after LUN reset for target %u\n",
1281 mpssas_announce_reset(sc, AC_SENT_BDR, targ->tid, tm->cm_lun);
1284 * We've finished recovery for this logical unit. check and
1285 * see if some other logical unit has a timedout command
1286 * that needs to be processed.
1288 cm = TAILQ_FIRST(&targ->timedout_commands);
1290 mps_dprint(sc, MPS_INFO|MPS_RECOVERY,
1291 "More commands to abort for target %u\n",
1293 mpssas_send_abort(sc, tm, cm);
1296 mpssas_free_tm(sc, tm);
1300 * If we still have commands for this LUN, the reset
1301 * effectively failed, regardless of the status reported.
1302 * Escalate to a target reset.
1304 mps_dprint(sc, MPS_INFO|MPS_RECOVERY,
1305 "logical unit reset complete for target %u, but still "
1306 "have %u command(s), sending target reset\n", targ->tid,
1308 mpssas_send_reset(sc, tm,
1309 MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET);
1314 mpssas_target_reset_complete(struct mps_softc *sc, struct mps_command *tm)
1316 MPI2_SCSI_TASK_MANAGE_REPLY *reply;
1317 MPI2_SCSI_TASK_MANAGE_REQUEST *req;
1318 struct mpssas_target *targ;
1320 callout_stop(&tm->cm_callout);
1322 req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req;
1323 reply = (MPI2_SCSI_TASK_MANAGE_REPLY *)tm->cm_reply;
1327 * Currently there should be no way we can hit this case. It only
1328 * happens when we have a failure to allocate chain frames, and
1329 * task management commands don't have S/G lists.
1331 if ((tm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) {
1332 mps_dprint(sc, MPS_ERROR,"%s: cm_flags = %#x for target reset! "
1333 "This should not happen!\n", __func__, tm->cm_flags);
1334 mpssas_free_tm(sc, tm);
1338 if (reply == NULL) {
1339 mps_dprint(sc, MPS_RECOVERY,
1340 "NULL target reset reply for tm %pi TaskMID %u\n",
1341 tm, le16toh(req->TaskMID));
1342 if ((sc->mps_flags & MPS_FLAGS_DIAGRESET) != 0) {
1343 /* this completion was due to a reset, just cleanup */
1344 mps_dprint(sc, MPS_RECOVERY, "Hardware undergoing "
1345 "reset, ignoring NULL target reset reply\n");
1347 mpssas_free_tm(sc, tm);
1349 /* we should have gotten a reply. */
1350 mps_dprint(sc, MPS_INFO|MPS_RECOVERY, "NULL reply on "
1351 "target reset attempt, resetting controller\n");
1357 mps_dprint(sc, MPS_RECOVERY,
1358 "target reset status 0x%x code 0x%x count %u\n",
1359 le16toh(reply->IOCStatus), le32toh(reply->ResponseCode),
1360 le32toh(reply->TerminationCount));
1362 if (targ->outstanding == 0) {
1363 /* we've finished recovery for this target and all
1364 * of its logical units.
1366 mps_dprint(sc, MPS_RECOVERY|MPS_INFO,
1367 "Finished reset recovery for target %u\n", targ->tid);
1369 mpssas_announce_reset(sc, AC_SENT_BDR, tm->cm_targ->tid,
1373 mpssas_free_tm(sc, tm);
1376 * After a target reset, if this target still has
1377 * outstanding commands, the reset effectively failed,
1378 * regardless of the status reported. escalate.
1380 mps_dprint(sc, MPS_INFO|MPS_RECOVERY,
1381 "Target reset complete for target %u, but still have %u "
1382 "command(s), resetting controller\n", targ->tid,
1388 #define MPS_RESET_TIMEOUT 30
1391 mpssas_send_reset(struct mps_softc *sc, struct mps_command *tm, uint8_t type)
1393 MPI2_SCSI_TASK_MANAGE_REQUEST *req;
1394 struct mpssas_target *target;
1397 target = tm->cm_targ;
1398 if (target->handle == 0) {
1399 mps_dprint(sc, MPS_ERROR,"%s null devhandle for target_id %d\n",
1400 __func__, target->tid);
1404 req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req;
1405 req->DevHandle = htole16(target->handle);
1406 req->TaskType = type;
1408 if (type == MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET) {
1409 /* XXX Need to handle invalid LUNs */
1410 MPS_SET_LUN(req->LUN, tm->cm_lun);
1411 tm->cm_targ->logical_unit_resets++;
1412 mps_dprint(sc, MPS_RECOVERY|MPS_INFO,
1413 "Sending logical unit reset to target %u lun %d\n",
1414 target->tid, tm->cm_lun);
1415 tm->cm_complete = mpssas_logical_unit_reset_complete;
1416 mpssas_prepare_for_tm(sc, tm, target, tm->cm_lun);
1417 } else if (type == MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET) {
1419 * Target reset method =
1420 * SAS Hard Link Reset / SATA Link Reset
1422 req->MsgFlags = MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET;
1423 tm->cm_targ->target_resets++;
1424 mps_dprint(sc, MPS_RECOVERY|MPS_INFO,
1425 "Sending target reset to target %u\n", target->tid);
1426 tm->cm_complete = mpssas_target_reset_complete;
1427 mpssas_prepare_for_tm(sc, tm, target, CAM_LUN_WILDCARD);
1429 mps_dprint(sc, MPS_ERROR, "unexpected reset type 0x%x\n", type);
1434 tm->cm_complete_data = (void *)tm;
1436 callout_reset(&tm->cm_callout, MPS_RESET_TIMEOUT * hz,
1437 mpssas_tm_timeout, tm);
1439 err = mps_map_command(sc, tm);
1441 mps_dprint(sc, MPS_ERROR|MPS_RECOVERY,
1442 "error %d sending reset type %u\n",
1450 mpssas_abort_complete(struct mps_softc *sc, struct mps_command *tm)
1452 struct mps_command *cm;
1453 MPI2_SCSI_TASK_MANAGE_REPLY *reply;
1454 MPI2_SCSI_TASK_MANAGE_REQUEST *req;
1455 struct mpssas_target *targ;
1457 callout_stop(&tm->cm_callout);
1459 req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req;
1460 reply = (MPI2_SCSI_TASK_MANAGE_REPLY *)tm->cm_reply;
1464 * Currently there should be no way we can hit this case. It only
1465 * happens when we have a failure to allocate chain frames, and
1466 * task management commands don't have S/G lists.
1468 if ((tm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) {
1469 mps_dprint(sc, MPS_RECOVERY,
1470 "cm_flags = %#x for abort %p TaskMID %u!\n",
1471 tm->cm_flags, tm, le16toh(req->TaskMID));
1472 mpssas_free_tm(sc, tm);
1476 if (reply == NULL) {
1477 mps_dprint(sc, MPS_RECOVERY,
1478 "NULL abort reply for tm %p TaskMID %u\n",
1479 tm, le16toh(req->TaskMID));
1480 if ((sc->mps_flags & MPS_FLAGS_DIAGRESET) != 0) {
1481 /* this completion was due to a reset, just cleanup */
1482 mps_dprint(sc, MPS_RECOVERY, "Hardware undergoing "
1483 "reset, ignoring NULL abort reply\n");
1485 mpssas_free_tm(sc, tm);
1487 /* we should have gotten a reply. */
1488 mps_dprint(sc, MPS_INFO|MPS_RECOVERY, "NULL reply on "
1489 "abort attempt, resetting controller\n");
1495 mps_dprint(sc, MPS_RECOVERY,
1496 "abort TaskMID %u status 0x%x code 0x%x count %u\n",
1497 le16toh(req->TaskMID),
1498 le16toh(reply->IOCStatus), le32toh(reply->ResponseCode),
1499 le32toh(reply->TerminationCount));
1501 cm = TAILQ_FIRST(&tm->cm_targ->timedout_commands);
1504 * If there are no more timedout commands, we're done with
1505 * error recovery for this target.
1507 mps_dprint(sc, MPS_INFO|MPS_RECOVERY,
1508 "Finished abort recovery for target %u\n", targ->tid);
1511 mpssas_free_tm(sc, tm);
1512 } else if (le16toh(req->TaskMID) != cm->cm_desc.Default.SMID) {
1513 /* abort success, but we have more timedout commands to abort */
1514 mps_dprint(sc, MPS_INFO|MPS_RECOVERY,
1515 "Continuing abort recovery for target %u\n", targ->tid);
1517 mpssas_send_abort(sc, tm, cm);
1519 /* we didn't get a command completion, so the abort
1520 * failed as far as we're concerned. escalate.
1522 mps_dprint(sc, MPS_RECOVERY,
1523 "Abort failed for target %u, sending logical unit reset\n",
1526 mpssas_send_reset(sc, tm,
1527 MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET);
1531 #define MPS_ABORT_TIMEOUT 5
1534 mpssas_send_abort(struct mps_softc *sc, struct mps_command *tm, struct mps_command *cm)
1536 MPI2_SCSI_TASK_MANAGE_REQUEST *req;
1537 struct mpssas_target *targ;
1541 if (targ->handle == 0) {
1542 mps_dprint(sc, MPS_ERROR|MPS_RECOVERY,
1543 "%s null devhandle for target_id %d\n",
1544 __func__, cm->cm_ccb->ccb_h.target_id);
1548 mpssas_log_command(cm, MPS_RECOVERY|MPS_INFO,
1549 "Aborting command %p\n", cm);
1551 req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req;
1552 req->DevHandle = htole16(targ->handle);
1553 req->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK;
1555 /* XXX Need to handle invalid LUNs */
1556 MPS_SET_LUN(req->LUN, cm->cm_ccb->ccb_h.target_lun);
1558 req->TaskMID = htole16(cm->cm_desc.Default.SMID);
1561 tm->cm_complete = mpssas_abort_complete;
1562 tm->cm_complete_data = (void *)tm;
1563 tm->cm_targ = cm->cm_targ;
1564 tm->cm_lun = cm->cm_lun;
1566 callout_reset(&tm->cm_callout, MPS_ABORT_TIMEOUT * hz,
1567 mpssas_tm_timeout, tm);
1571 mpssas_prepare_for_tm(sc, tm, targ, tm->cm_lun);
1573 err = mps_map_command(sc, tm);
1575 mps_dprint(sc, MPS_ERROR|MPS_RECOVERY,
1576 "error %d sending abort for cm %p SMID %u\n",
1577 err, cm, req->TaskMID);
1582 mpssas_scsiio_timeout(void *data)
1584 sbintime_t elapsed, now;
1586 struct mps_softc *sc;
1587 struct mps_command *cm;
1588 struct mpssas_target *targ;
1590 cm = (struct mps_command *)data;
1596 mtx_assert(&sc->mps_mtx, MA_OWNED);
1598 mps_dprint(sc, MPS_XINFO|MPS_RECOVERY, "Timeout checking cm %p\n", sc);
1601 * Run the interrupt handler to make sure it's not pending. This
1602 * isn't perfect because the command could have already completed
1603 * and been re-used, though this is unlikely.
1605 mps_intr_locked(sc);
1606 if (cm->cm_flags & MPS_CM_FLAGS_ON_RECOVERY) {
1607 mpssas_log_command(cm, MPS_XINFO,
1608 "SCSI command %p almost timed out\n", cm);
1612 if (cm->cm_ccb == NULL) {
1613 mps_dprint(sc, MPS_ERROR, "command timeout with NULL ccb\n");
1620 elapsed = now - ccb->ccb_h.qos.sim_data;
1621 mpssas_log_command(cm, MPS_INFO|MPS_RECOVERY,
1622 "Command timeout on target %u(0x%04x) %d set, %d.%d elapsed\n",
1623 targ->tid, targ->handle, ccb->ccb_h.timeout,
1624 sbintime_getsec(elapsed), elapsed & 0xffffffff);
1626 /* XXX first, check the firmware state, to see if it's still
1627 * operational. if not, do a diag reset.
1629 mpssas_set_ccbstatus(cm->cm_ccb, CAM_CMD_TIMEOUT);
1630 cm->cm_flags |= MPS_CM_FLAGS_ON_RECOVERY | MPS_CM_FLAGS_TIMEDOUT;
1631 TAILQ_INSERT_TAIL(&targ->timedout_commands, cm, cm_recovery);
1633 if (targ->tm != NULL) {
1634 /* target already in recovery, just queue up another
1635 * timedout command to be processed later.
1637 mps_dprint(sc, MPS_RECOVERY,
1638 "queued timedout cm %p for processing by tm %p\n",
1640 } else if ((targ->tm = mpssas_alloc_tm(sc)) != NULL) {
1641 mps_dprint(sc, MPS_RECOVERY|MPS_INFO,
1642 "Sending abort to target %u for SMID %d\n", targ->tid,
1643 cm->cm_desc.Default.SMID);
1644 mps_dprint(sc, MPS_RECOVERY, "timedout cm %p allocated tm %p\n",
1647 /* start recovery by aborting the first timedout command */
1648 mpssas_send_abort(sc, targ->tm, cm);
1650 /* XXX queue this target up for recovery once a TM becomes
1651 * available. The firmware only has a limited number of
1652 * HighPriority credits for the high priority requests used
1653 * for task management, and we ran out.
1655 * Isilon: don't worry about this for now, since we have
1656 * more credits than disks in an enclosure, and limit
1657 * ourselves to one TM per target for recovery.
1659 mps_dprint(sc, MPS_ERROR|MPS_RECOVERY,
1660 "timedout cm %p failed to allocate a tm\n", cm);
1666 mpssas_action_scsiio(struct mpssas_softc *sassc, union ccb *ccb)
1668 MPI2_SCSI_IO_REQUEST *req;
1669 struct ccb_scsiio *csio;
1670 struct mps_softc *sc;
1671 struct mpssas_target *targ;
1672 struct mpssas_lun *lun;
1673 struct mps_command *cm;
1674 uint8_t i, lba_byte, *ref_tag_addr;
1675 uint16_t eedp_flags;
1676 uint32_t mpi_control;
1680 mtx_assert(&sc->mps_mtx, MA_OWNED);
1683 KASSERT(csio->ccb_h.target_id < sassc->maxtargets,
1684 ("Target %d out of bounds in XPT_SCSI_IO\n",
1685 csio->ccb_h.target_id));
1686 targ = &sassc->targets[csio->ccb_h.target_id];
1687 mps_dprint(sc, MPS_TRACE, "ccb %p target flag %x\n", ccb, targ->flags);
1688 if (targ->handle == 0x0) {
1689 mps_dprint(sc, MPS_ERROR, "%s NULL handle for target %u\n",
1690 __func__, csio->ccb_h.target_id);
1691 mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE);
1695 if (targ->flags & MPS_TARGET_FLAGS_RAID_COMPONENT) {
1696 mps_dprint(sc, MPS_ERROR, "%s Raid component no SCSI IO "
1697 "supported %u\n", __func__, csio->ccb_h.target_id);
1698 mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE);
1703 * Sometimes, it is possible to get a command that is not "In
1704 * Progress" and was actually aborted by the upper layer. Check for
1705 * this here and complete the command without error.
1707 if (mpssas_get_ccbstatus(ccb) != CAM_REQ_INPROG) {
1708 mps_dprint(sc, MPS_TRACE, "%s Command is not in progress for "
1709 "target %u\n", __func__, csio->ccb_h.target_id);
1714 * If devinfo is 0 this will be a volume. In that case don't tell CAM
1715 * that the volume has timed out. We want volumes to be enumerated
1716 * until they are deleted/removed, not just failed.
1718 if (targ->flags & MPSSAS_TARGET_INREMOVAL) {
1719 if (targ->devinfo == 0)
1720 mpssas_set_ccbstatus(ccb, CAM_REQ_CMP);
1722 mpssas_set_ccbstatus(ccb, CAM_SEL_TIMEOUT);
1727 if ((sc->mps_flags & MPS_FLAGS_SHUTDOWN) != 0) {
1728 mps_dprint(sc, MPS_INFO, "%s shutting down\n", __func__);
1729 mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE);
1735 * If target has a reset in progress, freeze the devq and return. The
1736 * devq will be released when the TM reset is finished.
1738 if (targ->flags & MPSSAS_TARGET_INRESET) {
1739 ccb->ccb_h.status = CAM_BUSY | CAM_DEV_QFRZN;
1740 mps_dprint(sc, MPS_INFO, "%s: Freezing devq for target ID %d\n",
1741 __func__, targ->tid);
1742 xpt_freeze_devq(ccb->ccb_h.path, 1);
1747 cm = mps_alloc_command(sc);
1748 if (cm == NULL || (sc->mps_flags & MPS_FLAGS_DIAGRESET)) {
1750 mps_free_command(sc, cm);
1752 if ((sassc->flags & MPSSAS_QUEUE_FROZEN) == 0) {
1753 xpt_freeze_simq(sassc->sim, 1);
1754 sassc->flags |= MPSSAS_QUEUE_FROZEN;
1756 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1757 ccb->ccb_h.status |= CAM_REQUEUE_REQ;
1762 req = (MPI2_SCSI_IO_REQUEST *)cm->cm_req;
1763 bzero(req, sizeof(*req));
1764 req->DevHandle = htole16(targ->handle);
1765 req->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
1767 req->SenseBufferLowAddress = htole32(cm->cm_sense_busaddr);
1768 req->SenseBufferLength = MPS_SENSE_LEN;
1770 req->ChainOffset = 0;
1771 req->SGLOffset0 = 24; /* 32bit word offset to the SGL */
1776 req->DataLength = htole32(csio->dxfer_len);
1777 req->BidirectionalDataLength = 0;
1778 req->IoFlags = htole16(csio->cdb_len);
1781 /* Note: BiDirectional transfers are not supported */
1782 switch (csio->ccb_h.flags & CAM_DIR_MASK) {
1784 mpi_control = MPI2_SCSIIO_CONTROL_READ;
1785 cm->cm_flags |= MPS_CM_FLAGS_DATAIN;
1788 mpi_control = MPI2_SCSIIO_CONTROL_WRITE;
1789 cm->cm_flags |= MPS_CM_FLAGS_DATAOUT;
1793 mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER;
1797 if (csio->cdb_len == 32)
1798 mpi_control |= 4 << MPI2_SCSIIO_CONTROL_ADDCDBLEN_SHIFT;
1800 * It looks like the hardware doesn't require an explicit tag
1801 * number for each transaction. SAM Task Management not supported
1804 switch (csio->tag_action) {
1805 case MSG_HEAD_OF_Q_TAG:
1806 mpi_control |= MPI2_SCSIIO_CONTROL_HEADOFQ;
1808 case MSG_ORDERED_Q_TAG:
1809 mpi_control |= MPI2_SCSIIO_CONTROL_ORDEREDQ;
1812 mpi_control |= MPI2_SCSIIO_CONTROL_ACAQ;
1814 case CAM_TAG_ACTION_NONE:
1815 case MSG_SIMPLE_Q_TAG:
1817 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
1820 mpi_control |= sc->mapping_table[csio->ccb_h.target_id].TLR_bits;
1821 req->Control = htole32(mpi_control);
1822 if (MPS_SET_LUN(req->LUN, csio->ccb_h.target_lun) != 0) {
1823 mps_free_command(sc, cm);
1824 mpssas_set_ccbstatus(ccb, CAM_LUN_INVALID);
1829 if (csio->ccb_h.flags & CAM_CDB_POINTER)
1830 bcopy(csio->cdb_io.cdb_ptr, &req->CDB.CDB32[0], csio->cdb_len);
1832 bcopy(csio->cdb_io.cdb_bytes, &req->CDB.CDB32[0],csio->cdb_len);
1833 req->IoFlags = htole16(csio->cdb_len);
1836 * Check if EEDP is supported and enabled. If it is then check if the
1837 * SCSI opcode could be using EEDP. If so, make sure the LUN exists and
1838 * is formatted for EEDP support. If all of this is true, set CDB up
1839 * for EEDP transfer.
1841 eedp_flags = op_code_prot[req->CDB.CDB32[0]];
1842 if (sc->eedp_enabled && eedp_flags) {
1843 SLIST_FOREACH(lun, &targ->luns, lun_link) {
1844 if (lun->lun_id == csio->ccb_h.target_lun) {
1849 if ((lun != NULL) && (lun->eedp_formatted)) {
1850 req->EEDPBlockSize = htole16(lun->eedp_block_size);
1851 eedp_flags |= (MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
1852 MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
1853 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD);
1854 req->EEDPFlags = htole16(eedp_flags);
1857 * If CDB less than 32, fill in Primary Ref Tag with
1858 * low 4 bytes of LBA. If CDB is 32, tag stuff is
1859 * already there. Also, set protection bit. FreeBSD
1860 * currently does not support CDBs bigger than 16, but
1861 * the code doesn't hurt, and will be here for the
1864 if (csio->cdb_len != 32) {
1865 lba_byte = (csio->cdb_len == 16) ? 6 : 2;
1866 ref_tag_addr = (uint8_t *)&req->CDB.EEDP32.
1867 PrimaryReferenceTag;
1868 for (i = 0; i < 4; i++) {
1870 req->CDB.CDB32[lba_byte + i];
1873 req->CDB.EEDP32.PrimaryReferenceTag =
1874 htole32(req->CDB.EEDP32.PrimaryReferenceTag);
1875 req->CDB.EEDP32.PrimaryApplicationTagMask =
1877 req->CDB.CDB32[1] = (req->CDB.CDB32[1] & 0x1F) |
1881 MPI2_SCSIIO_EEDPFLAGS_INC_PRI_APPTAG;
1882 req->EEDPFlags = htole16(eedp_flags);
1883 req->CDB.CDB32[10] = (req->CDB.CDB32[10] &
1889 cm->cm_length = csio->dxfer_len;
1890 if (cm->cm_length != 0) {
1892 cm->cm_flags |= MPS_CM_FLAGS_USE_CCB;
1896 cm->cm_sge = &req->SGL;
1897 cm->cm_sglsize = (32 - 24) * 4;
1898 cm->cm_desc.SCSIIO.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO;
1899 cm->cm_desc.SCSIIO.DevHandle = htole16(targ->handle);
1900 cm->cm_complete = mpssas_scsiio_complete;
1901 cm->cm_complete_data = ccb;
1903 cm->cm_lun = csio->ccb_h.target_lun;
1907 * If HBA is a WD and the command is not for a retry, try to build a
1908 * direct I/O message. If failed, or the command is for a retry, send
1909 * the I/O to the IR volume itself.
1911 if (sc->WD_valid_config) {
1912 if (ccb->ccb_h.sim_priv.entries[0].field == MPS_WD_RETRY) {
1913 mpssas_direct_drive_io(sassc, cm, ccb);
1915 mpssas_set_ccbstatus(ccb, CAM_REQ_INPROG);
1919 #if defined(BUF_TRACKING) || defined(FULL_BUF_TRACKING)
1920 if (csio->bio != NULL)
1921 biotrack(csio->bio, __func__);
1923 csio->ccb_h.qos.sim_data = sbinuptime();
1924 callout_reset_sbt(&cm->cm_callout, SBT_1MS * ccb->ccb_h.timeout, 0,
1925 mpssas_scsiio_timeout, cm, 0);
1928 targ->outstanding++;
1929 TAILQ_INSERT_TAIL(&targ->commands, cm, cm_link);
1930 ccb->ccb_h.status |= CAM_SIM_QUEUED;
1932 mpssas_log_command(cm, MPS_XINFO, "%s cm %p ccb %p outstanding %u\n",
1933 __func__, cm, ccb, targ->outstanding);
1935 mps_map_command(sc, cm);
1940 * mps_sc_failed_io_info - translated non-succesfull SCSI_IO request
1943 mps_sc_failed_io_info(struct mps_softc *sc, struct ccb_scsiio *csio,
1944 Mpi2SCSIIOReply_t *mpi_reply)
1948 u16 ioc_status = le16toh(mpi_reply->IOCStatus) &
1949 MPI2_IOCSTATUS_MASK;
1950 u8 scsi_state = mpi_reply->SCSIState;
1951 u8 scsi_status = mpi_reply->SCSIStatus;
1952 u32 log_info = le32toh(mpi_reply->IOCLogInfo);
1953 const char *desc_ioc_state, *desc_scsi_status;
1955 if (log_info == 0x31170000)
1958 desc_ioc_state = mps_describe_table(mps_iocstatus_string,
1960 desc_scsi_status = mps_describe_table(mps_scsi_status_string,
1963 mps_dprint(sc, MPS_XINFO, "\thandle(0x%04x), ioc_status(%s)(0x%04x)\n",
1964 le16toh(mpi_reply->DevHandle), desc_ioc_state, ioc_status);
1967 *We can add more detail about underflow data here
1970 mps_dprint(sc, MPS_XINFO, "\tscsi_status(%s)(0x%02x), "
1971 "scsi_state %b\n", desc_scsi_status, scsi_status,
1972 scsi_state, "\20" "\1AutosenseValid" "\2AutosenseFailed"
1973 "\3NoScsiStatus" "\4Terminated" "\5Response InfoValid");
1975 if (sc->mps_debug & MPS_XINFO &&
1976 scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
1977 mps_dprint(sc, MPS_XINFO, "-> Sense Buffer Data : Start :\n");
1978 scsi_sense_print(csio);
1979 mps_dprint(sc, MPS_XINFO, "-> Sense Buffer Data : End :\n");
1982 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) {
1983 response_info = le32toh(mpi_reply->ResponseInfo);
1984 response_bytes = (u8 *)&response_info;
1985 mps_dprint(sc, MPS_XINFO, "response code(0x%1x): %s\n",
1987 mps_describe_table(mps_scsi_taskmgmt_string,
1988 response_bytes[0]));
1993 mpssas_scsiio_complete(struct mps_softc *sc, struct mps_command *cm)
1995 MPI2_SCSI_IO_REPLY *rep;
1997 struct ccb_scsiio *csio;
1998 struct mpssas_softc *sassc;
1999 struct scsi_vpd_supported_page_list *vpd_list = NULL;
2000 u8 *TLR_bits, TLR_on;
2003 struct mpssas_target *target;
2004 target_id_t target_id;
2007 mps_dprint(sc, MPS_TRACE,
2008 "cm %p SMID %u ccb %p reply %p outstanding %u\n", cm,
2009 cm->cm_desc.Default.SMID, cm->cm_ccb, cm->cm_reply,
2010 cm->cm_targ->outstanding);
2012 callout_stop(&cm->cm_callout);
2013 mtx_assert(&sc->mps_mtx, MA_OWNED);
2016 ccb = cm->cm_complete_data;
2018 target_id = csio->ccb_h.target_id;
2019 rep = (MPI2_SCSI_IO_REPLY *)cm->cm_reply;
2021 * XXX KDM if the chain allocation fails, does it matter if we do
2022 * the sync and unload here? It is simpler to do it in every case,
2023 * assuming it doesn't cause problems.
2025 if (cm->cm_data != NULL) {
2026 if (cm->cm_flags & MPS_CM_FLAGS_DATAIN)
2027 dir = BUS_DMASYNC_POSTREAD;
2028 else if (cm->cm_flags & MPS_CM_FLAGS_DATAOUT)
2029 dir = BUS_DMASYNC_POSTWRITE;
2030 bus_dmamap_sync(sc->buffer_dmat, cm->cm_dmamap, dir);
2031 bus_dmamap_unload(sc->buffer_dmat, cm->cm_dmamap);
2034 cm->cm_targ->completed++;
2035 cm->cm_targ->outstanding--;
2036 TAILQ_REMOVE(&cm->cm_targ->commands, cm, cm_link);
2037 ccb->ccb_h.status &= ~(CAM_STATUS_MASK | CAM_SIM_QUEUED);
2039 #if defined(BUF_TRACKING) || defined(FULL_BUF_TRACKING)
2040 if (ccb->csio.bio != NULL)
2041 biotrack(ccb->csio.bio, __func__);
2044 if (cm->cm_flags & MPS_CM_FLAGS_ON_RECOVERY) {
2045 TAILQ_REMOVE(&cm->cm_targ->timedout_commands, cm, cm_recovery);
2046 KASSERT(cm->cm_state == MPS_CM_STATE_BUSY,
2047 ("Not busy for CM_FLAGS_TIMEDOUT: %d\n", cm->cm_state));
2048 cm->cm_flags &= ~MPS_CM_FLAGS_ON_RECOVERY;
2049 if (cm->cm_reply != NULL)
2050 mpssas_log_command(cm, MPS_RECOVERY,
2051 "completed timedout cm %p ccb %p during recovery "
2052 "ioc %x scsi %x state %x xfer %u\n",
2053 cm, cm->cm_ccb, le16toh(rep->IOCStatus),
2054 rep->SCSIStatus, rep->SCSIState,
2055 le32toh(rep->TransferCount));
2057 mpssas_log_command(cm, MPS_RECOVERY,
2058 "completed timedout cm %p ccb %p during recovery\n",
2060 } else if (cm->cm_targ->tm != NULL) {
2061 if (cm->cm_reply != NULL)
2062 mpssas_log_command(cm, MPS_RECOVERY,
2063 "completed cm %p ccb %p during recovery "
2064 "ioc %x scsi %x state %x xfer %u\n",
2065 cm, cm->cm_ccb, le16toh(rep->IOCStatus),
2066 rep->SCSIStatus, rep->SCSIState,
2067 le32toh(rep->TransferCount));
2069 mpssas_log_command(cm, MPS_RECOVERY,
2070 "completed cm %p ccb %p during recovery\n",
2072 } else if ((sc->mps_flags & MPS_FLAGS_DIAGRESET) != 0) {
2073 mpssas_log_command(cm, MPS_RECOVERY,
2074 "reset completed cm %p ccb %p\n",
2078 if ((cm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) {
2080 * We ran into an error after we tried to map the command,
2081 * so we're getting a callback without queueing the command
2082 * to the hardware. So we set the status here, and it will
2083 * be retained below. We'll go through the "fast path",
2084 * because there can be no reply when we haven't actually
2085 * gone out to the hardware.
2087 mpssas_set_ccbstatus(ccb, CAM_REQUEUE_REQ);
2090 * Currently the only error included in the mask is
2091 * MPS_CM_FLAGS_CHAIN_FAILED, which means we're out of
2092 * chain frames. We need to freeze the queue until we get
2093 * a command that completed without this error, which will
2094 * hopefully have some chain frames attached that we can
2095 * use. If we wanted to get smarter about it, we would
2096 * only unfreeze the queue in this condition when we're
2097 * sure that we're getting some chain frames back. That's
2098 * probably unnecessary.
2100 if ((sassc->flags & MPSSAS_QUEUE_FROZEN) == 0) {
2101 xpt_freeze_simq(sassc->sim, 1);
2102 sassc->flags |= MPSSAS_QUEUE_FROZEN;
2103 mps_dprint(sc, MPS_XINFO, "Error sending command, "
2104 "freezing SIM queue\n");
2109 * If this is a Start Stop Unit command and it was issued by the driver
2110 * during shutdown, decrement the refcount to account for all of the
2111 * commands that were sent. All SSU commands should be completed before
2112 * shutdown completes, meaning SSU_refcount will be 0 after SSU_started
2115 if (sc->SSU_started && (csio->cdb_io.cdb_bytes[0] == START_STOP_UNIT)) {
2116 mps_dprint(sc, MPS_INFO, "Decrementing SSU count.\n");
2120 /* Take the fast path to completion */
2121 if (cm->cm_reply == NULL) {
2122 if (mpssas_get_ccbstatus(ccb) == CAM_REQ_INPROG) {
2123 if ((sc->mps_flags & MPS_FLAGS_DIAGRESET) != 0)
2124 mpssas_set_ccbstatus(ccb, CAM_SCSI_BUS_RESET);
2126 mpssas_set_ccbstatus(ccb, CAM_REQ_CMP);
2127 ccb->csio.scsi_status = SCSI_STATUS_OK;
2129 if (sassc->flags & MPSSAS_QUEUE_FROZEN) {
2130 ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
2131 sassc->flags &= ~MPSSAS_QUEUE_FROZEN;
2132 mps_dprint(sc, MPS_XINFO,
2133 "Unfreezing SIM queue\n");
2138 * There are two scenarios where the status won't be
2139 * CAM_REQ_CMP. The first is if MPS_CM_FLAGS_ERROR_MASK is
2140 * set, the second is in the MPS_FLAGS_DIAGRESET above.
2142 if (mpssas_get_ccbstatus(ccb) != CAM_REQ_CMP) {
2144 * Freeze the dev queue so that commands are
2145 * executed in the correct order after error
2148 ccb->ccb_h.status |= CAM_DEV_QFRZN;
2149 xpt_freeze_devq(ccb->ccb_h.path, /*count*/ 1);
2151 mps_free_command(sc, cm);
2156 mpssas_log_command(cm, MPS_XINFO,
2157 "ioc %x scsi %x state %x xfer %u\n",
2158 le16toh(rep->IOCStatus), rep->SCSIStatus, rep->SCSIState,
2159 le32toh(rep->TransferCount));
2162 * If this is a Direct Drive I/O, reissue the I/O to the original IR
2163 * Volume if an error occurred (normal I/O retry). Use the original
2164 * CCB, but set a flag that this will be a retry so that it's sent to
2165 * the original volume. Free the command but reuse the CCB.
2167 if (cm->cm_flags & MPS_CM_FLAGS_DD_IO) {
2168 mps_free_command(sc, cm);
2169 ccb->ccb_h.sim_priv.entries[0].field = MPS_WD_RETRY;
2170 mpssas_action_scsiio(sassc, ccb);
2173 ccb->ccb_h.sim_priv.entries[0].field = 0;
2175 switch (le16toh(rep->IOCStatus) & MPI2_IOCSTATUS_MASK) {
2176 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
2177 csio->resid = cm->cm_length - le32toh(rep->TransferCount);
2179 case MPI2_IOCSTATUS_SUCCESS:
2180 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
2182 if ((le16toh(rep->IOCStatus) & MPI2_IOCSTATUS_MASK) ==
2183 MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR)
2184 mpssas_log_command(cm, MPS_XINFO, "recovered error\n");
2186 /* Completion failed at the transport level. */
2187 if (rep->SCSIState & (MPI2_SCSI_STATE_NO_SCSI_STATUS |
2188 MPI2_SCSI_STATE_TERMINATED)) {
2189 mpssas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR);
2193 /* In a modern packetized environment, an autosense failure
2194 * implies that there's not much else that can be done to
2195 * recover the command.
2197 if (rep->SCSIState & MPI2_SCSI_STATE_AUTOSENSE_FAILED) {
2198 mpssas_set_ccbstatus(ccb, CAM_AUTOSENSE_FAIL);
2203 * CAM doesn't care about SAS Response Info data, but if this is
2204 * the state check if TLR should be done. If not, clear the
2205 * TLR_bits for the target.
2207 if ((rep->SCSIState & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) &&
2208 ((le32toh(rep->ResponseInfo) &
2209 MPI2_SCSI_RI_MASK_REASONCODE) ==
2210 MPS_SCSI_RI_INVALID_FRAME)) {
2211 sc->mapping_table[target_id].TLR_bits =
2212 (u8)MPI2_SCSIIO_CONTROL_NO_TLR;
2216 * Intentionally override the normal SCSI status reporting
2217 * for these two cases. These are likely to happen in a
2218 * multi-initiator environment, and we want to make sure that
2219 * CAM retries these commands rather than fail them.
2221 if ((rep->SCSIStatus == MPI2_SCSI_STATUS_COMMAND_TERMINATED) ||
2222 (rep->SCSIStatus == MPI2_SCSI_STATUS_TASK_ABORTED)) {
2223 mpssas_set_ccbstatus(ccb, CAM_REQ_ABORTED);
2227 /* Handle normal status and sense */
2228 csio->scsi_status = rep->SCSIStatus;
2229 if (rep->SCSIStatus == MPI2_SCSI_STATUS_GOOD)
2230 mpssas_set_ccbstatus(ccb, CAM_REQ_CMP);
2232 mpssas_set_ccbstatus(ccb, CAM_SCSI_STATUS_ERROR);
2234 if (rep->SCSIState & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
2235 int sense_len, returned_sense_len;
2237 returned_sense_len = min(le32toh(rep->SenseCount),
2238 sizeof(struct scsi_sense_data));
2239 if (returned_sense_len < ccb->csio.sense_len)
2240 ccb->csio.sense_resid = ccb->csio.sense_len -
2243 ccb->csio.sense_resid = 0;
2245 sense_len = min(returned_sense_len,
2246 ccb->csio.sense_len - ccb->csio.sense_resid);
2247 bzero(&ccb->csio.sense_data,
2248 sizeof(ccb->csio.sense_data));
2249 bcopy(cm->cm_sense, &ccb->csio.sense_data, sense_len);
2250 ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
2254 * Check if this is an INQUIRY command. If it's a VPD inquiry,
2255 * and it's page code 0 (Supported Page List), and there is
2256 * inquiry data, and this is for a sequential access device, and
2257 * the device is an SSP target, and TLR is supported by the
2258 * controller, turn the TLR_bits value ON if page 0x90 is
2261 if ((csio->cdb_io.cdb_bytes[0] == INQUIRY) &&
2262 (csio->cdb_io.cdb_bytes[1] & SI_EVPD) &&
2263 (csio->cdb_io.cdb_bytes[2] == SVPD_SUPPORTED_PAGE_LIST) &&
2264 ((csio->ccb_h.flags & CAM_DATA_MASK) == CAM_DATA_VADDR) &&
2265 (csio->data_ptr != NULL) &&
2266 ((csio->data_ptr[0] & 0x1f) == T_SEQUENTIAL) &&
2267 (sc->control_TLR) &&
2268 (sc->mapping_table[target_id].device_info &
2269 MPI2_SAS_DEVICE_INFO_SSP_TARGET)) {
2270 vpd_list = (struct scsi_vpd_supported_page_list *)
2272 TLR_bits = &sc->mapping_table[target_id].TLR_bits;
2273 *TLR_bits = (u8)MPI2_SCSIIO_CONTROL_NO_TLR;
2274 TLR_on = (u8)MPI2_SCSIIO_CONTROL_TLR_ON;
2275 alloc_len = ((u16)csio->cdb_io.cdb_bytes[3] << 8) +
2276 csio->cdb_io.cdb_bytes[4];
2277 alloc_len -= csio->resid;
2278 for (i = 0; i < MIN(vpd_list->length, alloc_len); i++) {
2279 if (vpd_list->list[i] == 0x90) {
2287 * If this is a SATA direct-access end device, mark it so that
2288 * a SCSI StartStopUnit command will be sent to it when the
2289 * driver is being shutdown.
2291 if ((csio->cdb_io.cdb_bytes[0] == INQUIRY) &&
2292 ((csio->data_ptr[0] & 0x1f) == T_DIRECT) &&
2293 (sc->mapping_table[target_id].device_info &
2294 MPI2_SAS_DEVICE_INFO_SATA_DEVICE) &&
2295 ((sc->mapping_table[target_id].device_info &
2296 MPI2_SAS_DEVICE_INFO_MASK_DEVICE_TYPE) ==
2297 MPI2_SAS_DEVICE_INFO_END_DEVICE)) {
2298 target = &sassc->targets[target_id];
2299 target->supports_SSU = TRUE;
2300 mps_dprint(sc, MPS_XINFO, "Target %d supports SSU\n",
2304 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
2305 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
2307 * If devinfo is 0 this will be a volume. In that case don't
2308 * tell CAM that the volume is not there. We want volumes to
2309 * be enumerated until they are deleted/removed, not just
2312 if (cm->cm_targ->devinfo == 0)
2313 mpssas_set_ccbstatus(ccb, CAM_REQ_CMP);
2315 mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE);
2317 case MPI2_IOCSTATUS_INVALID_SGL:
2318 mps_print_scsiio_cmd(sc, cm);
2319 mpssas_set_ccbstatus(ccb, CAM_UNREC_HBA_ERROR);
2321 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
2323 * This is one of the responses that comes back when an I/O
2324 * has been aborted. If it is because of a timeout that we
2325 * initiated, just set the status to CAM_CMD_TIMEOUT.
2326 * Otherwise set it to CAM_REQ_ABORTED. The effect on the
2327 * command is the same (it gets retried, subject to the
2328 * retry counter), the only difference is what gets printed
2331 if (cm->cm_flags & MPS_CM_FLAGS_TIMEDOUT)
2332 mpssas_set_ccbstatus(ccb, CAM_CMD_TIMEOUT);
2334 mpssas_set_ccbstatus(ccb, CAM_REQ_ABORTED);
2336 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
2337 /* resid is ignored for this condition */
2339 mpssas_set_ccbstatus(ccb, CAM_DATA_RUN_ERR);
2341 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
2342 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
2344 * These can sometimes be transient transport-related
2345 * errors, and sometimes persistent drive-related errors.
2346 * We used to retry these without decrementing the retry
2347 * count by returning CAM_REQUEUE_REQ. Unfortunately, if
2348 * we hit a persistent drive problem that returns one of
2349 * these error codes, we would retry indefinitely. So,
2350 * return CAM_REQ_CMP_ERROR so that we decrement the retry
2351 * count and avoid infinite retries. We're taking the
2352 * potential risk of flagging false failures in the event
2353 * of a topology-related error (e.g. a SAS expander problem
2354 * causes a command addressed to a drive to fail), but
2355 * avoiding getting into an infinite retry loop.
2357 mpssas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR);
2358 mps_dprint(sc, MPS_INFO,
2359 "Controller reported %s tgt %u SMID %u loginfo %x\n",
2360 mps_describe_table(mps_iocstatus_string,
2361 le16toh(rep->IOCStatus) & MPI2_IOCSTATUS_MASK),
2362 target_id, cm->cm_desc.Default.SMID,
2363 le32toh(rep->IOCLogInfo));
2364 mps_dprint(sc, MPS_XINFO,
2365 "SCSIStatus %x SCSIState %x xfercount %u\n",
2366 rep->SCSIStatus, rep->SCSIState,
2367 le32toh(rep->TransferCount));
2369 case MPI2_IOCSTATUS_INVALID_FUNCTION:
2370 case MPI2_IOCSTATUS_INTERNAL_ERROR:
2371 case MPI2_IOCSTATUS_INVALID_VPID:
2372 case MPI2_IOCSTATUS_INVALID_FIELD:
2373 case MPI2_IOCSTATUS_INVALID_STATE:
2374 case MPI2_IOCSTATUS_OP_STATE_NOT_SUPPORTED:
2375 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
2376 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
2377 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
2378 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
2380 mpssas_log_command(cm, MPS_XINFO,
2381 "completed ioc %x loginfo %x scsi %x state %x xfer %u\n",
2382 le16toh(rep->IOCStatus), le32toh(rep->IOCLogInfo),
2383 rep->SCSIStatus, rep->SCSIState,
2384 le32toh(rep->TransferCount));
2385 csio->resid = cm->cm_length;
2386 mpssas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR);
2390 mps_sc_failed_io_info(sc,csio,rep);
2392 if (sassc->flags & MPSSAS_QUEUE_FROZEN) {
2393 ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
2394 sassc->flags &= ~MPSSAS_QUEUE_FROZEN;
2395 mps_dprint(sc, MPS_XINFO, "Command completed, "
2396 "unfreezing SIM queue\n");
2399 if (mpssas_get_ccbstatus(ccb) != CAM_REQ_CMP) {
2400 ccb->ccb_h.status |= CAM_DEV_QFRZN;
2401 xpt_freeze_devq(ccb->ccb_h.path, /*count*/ 1);
2404 mps_free_command(sc, cm);
2408 /* All Request reached here are Endian safe */
2410 mpssas_direct_drive_io(struct mpssas_softc *sassc, struct mps_command *cm,
2412 pMpi2SCSIIORequest_t pIO_req;
2413 struct mps_softc *sc = sassc->sc;
2415 uint32_t physLBA, stripe_offset, stripe_unit;
2416 uint32_t io_size, column;
2417 uint8_t *ptrLBA, lba_idx, physLBA_byte, *CDB;
2420 * If this is a valid SCSI command (Read6, Read10, Read16, Write6,
2421 * Write10, or Write16), build a direct I/O message. Otherwise, the I/O
2422 * will be sent to the IR volume itself. Since Read6 and Write6 are a
2423 * bit different than the 10/16 CDBs, handle them separately.
2425 pIO_req = (pMpi2SCSIIORequest_t)cm->cm_req;
2426 CDB = pIO_req->CDB.CDB32;
2429 * Handle 6 byte CDBs.
2431 if ((pIO_req->DevHandle == sc->DD_dev_handle) && ((CDB[0] == READ_6) ||
2432 (CDB[0] == WRITE_6))) {
2434 * Get the transfer size in blocks.
2436 io_size = (cm->cm_length >> sc->DD_block_exponent);
2439 * Get virtual LBA given in the CDB.
2441 virtLBA = ((uint64_t)(CDB[1] & 0x1F) << 16) |
2442 ((uint64_t)CDB[2] << 8) | (uint64_t)CDB[3];
2445 * Check that LBA range for I/O does not exceed volume's
2448 if ((virtLBA + (uint64_t)io_size - 1) <=
2451 * Check if the I/O crosses a stripe boundary. If not,
2452 * translate the virtual LBA to a physical LBA and set
2453 * the DevHandle for the PhysDisk to be used. If it
2454 * does cross a boundary, do normal I/O. To get the
2455 * right DevHandle to use, get the map number for the
2456 * column, then use that map number to look up the
2457 * DevHandle of the PhysDisk.
2459 stripe_offset = (uint32_t)virtLBA &
2460 (sc->DD_stripe_size - 1);
2461 if ((stripe_offset + io_size) <= sc->DD_stripe_size) {
2462 physLBA = (uint32_t)virtLBA >>
2463 sc->DD_stripe_exponent;
2464 stripe_unit = physLBA / sc->DD_num_phys_disks;
2465 column = physLBA % sc->DD_num_phys_disks;
2466 pIO_req->DevHandle =
2467 htole16(sc->DD_column_map[column].dev_handle);
2468 /* ???? Is this endian safe*/
2469 cm->cm_desc.SCSIIO.DevHandle =
2472 physLBA = (stripe_unit <<
2473 sc->DD_stripe_exponent) + stripe_offset;
2474 ptrLBA = &pIO_req->CDB.CDB32[1];
2475 physLBA_byte = (uint8_t)(physLBA >> 16);
2476 *ptrLBA = physLBA_byte;
2477 ptrLBA = &pIO_req->CDB.CDB32[2];
2478 physLBA_byte = (uint8_t)(physLBA >> 8);
2479 *ptrLBA = physLBA_byte;
2480 ptrLBA = &pIO_req->CDB.CDB32[3];
2481 physLBA_byte = (uint8_t)physLBA;
2482 *ptrLBA = physLBA_byte;
2485 * Set flag that Direct Drive I/O is
2488 cm->cm_flags |= MPS_CM_FLAGS_DD_IO;
2495 * Handle 10, 12 or 16 byte CDBs.
2497 if ((pIO_req->DevHandle == sc->DD_dev_handle) && ((CDB[0] == READ_10) ||
2498 (CDB[0] == WRITE_10) || (CDB[0] == READ_16) ||
2499 (CDB[0] == WRITE_16) || (CDB[0] == READ_12) ||
2500 (CDB[0] == WRITE_12))) {
2502 * For 16-byte CDB's, verify that the upper 4 bytes of the CDB
2503 * are 0. If not, this is accessing beyond 2TB so handle it in
2504 * the else section. 10-byte and 12-byte CDB's are OK.
2505 * FreeBSD sends very rare 12 byte READ/WRITE, but driver is
2506 * ready to accept 12byte CDB for Direct IOs.
2508 if ((CDB[0] == READ_10 || CDB[0] == WRITE_10) ||
2509 (CDB[0] == READ_12 || CDB[0] == WRITE_12) ||
2510 !(CDB[2] | CDB[3] | CDB[4] | CDB[5])) {
2512 * Get the transfer size in blocks.
2514 io_size = (cm->cm_length >> sc->DD_block_exponent);
2517 * Get virtual LBA. Point to correct lower 4 bytes of
2518 * LBA in the CDB depending on command.
2520 lba_idx = ((CDB[0] == READ_12) ||
2521 (CDB[0] == WRITE_12) ||
2522 (CDB[0] == READ_10) ||
2523 (CDB[0] == WRITE_10))? 2 : 6;
2524 virtLBA = ((uint64_t)CDB[lba_idx] << 24) |
2525 ((uint64_t)CDB[lba_idx + 1] << 16) |
2526 ((uint64_t)CDB[lba_idx + 2] << 8) |
2527 (uint64_t)CDB[lba_idx + 3];
2530 * Check that LBA range for I/O does not exceed volume's
2533 if ((virtLBA + (uint64_t)io_size - 1) <=
2536 * Check if the I/O crosses a stripe boundary.
2537 * If not, translate the virtual LBA to a
2538 * physical LBA and set the DevHandle for the
2539 * PhysDisk to be used. If it does cross a
2540 * boundary, do normal I/O. To get the right
2541 * DevHandle to use, get the map number for the
2542 * column, then use that map number to look up
2543 * the DevHandle of the PhysDisk.
2545 stripe_offset = (uint32_t)virtLBA &
2546 (sc->DD_stripe_size - 1);
2547 if ((stripe_offset + io_size) <=
2548 sc->DD_stripe_size) {
2549 physLBA = (uint32_t)virtLBA >>
2550 sc->DD_stripe_exponent;
2551 stripe_unit = physLBA /
2552 sc->DD_num_phys_disks;
2554 sc->DD_num_phys_disks;
2555 pIO_req->DevHandle =
2556 htole16(sc->DD_column_map[column].
2558 cm->cm_desc.SCSIIO.DevHandle =
2561 physLBA = (stripe_unit <<
2562 sc->DD_stripe_exponent) +
2565 &pIO_req->CDB.CDB32[lba_idx];
2566 physLBA_byte = (uint8_t)(physLBA >> 24);
2567 *ptrLBA = physLBA_byte;
2569 &pIO_req->CDB.CDB32[lba_idx + 1];
2570 physLBA_byte = (uint8_t)(physLBA >> 16);
2571 *ptrLBA = physLBA_byte;
2573 &pIO_req->CDB.CDB32[lba_idx + 2];
2574 physLBA_byte = (uint8_t)(physLBA >> 8);
2575 *ptrLBA = physLBA_byte;
2577 &pIO_req->CDB.CDB32[lba_idx + 3];
2578 physLBA_byte = (uint8_t)physLBA;
2579 *ptrLBA = physLBA_byte;
2582 * Set flag that Direct Drive I/O is
2585 cm->cm_flags |= MPS_CM_FLAGS_DD_IO;
2590 * 16-byte CDB and the upper 4 bytes of the CDB are not
2591 * 0. Get the transfer size in blocks.
2593 io_size = (cm->cm_length >> sc->DD_block_exponent);
2598 virtLBA = ((uint64_t)CDB[2] << 54) |
2599 ((uint64_t)CDB[3] << 48) |
2600 ((uint64_t)CDB[4] << 40) |
2601 ((uint64_t)CDB[5] << 32) |
2602 ((uint64_t)CDB[6] << 24) |
2603 ((uint64_t)CDB[7] << 16) |
2604 ((uint64_t)CDB[8] << 8) |
2608 * Check that LBA range for I/O does not exceed volume's
2611 if ((virtLBA + (uint64_t)io_size - 1) <=
2614 * Check if the I/O crosses a stripe boundary.
2615 * If not, translate the virtual LBA to a
2616 * physical LBA and set the DevHandle for the
2617 * PhysDisk to be used. If it does cross a
2618 * boundary, do normal I/O. To get the right
2619 * DevHandle to use, get the map number for the
2620 * column, then use that map number to look up
2621 * the DevHandle of the PhysDisk.
2623 stripe_offset = (uint32_t)virtLBA &
2624 (sc->DD_stripe_size - 1);
2625 if ((stripe_offset + io_size) <=
2626 sc->DD_stripe_size) {
2627 physLBA = (uint32_t)(virtLBA >>
2628 sc->DD_stripe_exponent);
2629 stripe_unit = physLBA /
2630 sc->DD_num_phys_disks;
2632 sc->DD_num_phys_disks;
2633 pIO_req->DevHandle =
2634 htole16(sc->DD_column_map[column].
2636 cm->cm_desc.SCSIIO.DevHandle =
2639 physLBA = (stripe_unit <<
2640 sc->DD_stripe_exponent) +
2644 * Set upper 4 bytes of LBA to 0. We
2645 * assume that the phys disks are less
2646 * than 2 TB's in size. Then, set the
2649 pIO_req->CDB.CDB32[2] = 0;
2650 pIO_req->CDB.CDB32[3] = 0;
2651 pIO_req->CDB.CDB32[4] = 0;
2652 pIO_req->CDB.CDB32[5] = 0;
2653 ptrLBA = &pIO_req->CDB.CDB32[6];
2654 physLBA_byte = (uint8_t)(physLBA >> 24);
2655 *ptrLBA = physLBA_byte;
2656 ptrLBA = &pIO_req->CDB.CDB32[7];
2657 physLBA_byte = (uint8_t)(physLBA >> 16);
2658 *ptrLBA = physLBA_byte;
2659 ptrLBA = &pIO_req->CDB.CDB32[8];
2660 physLBA_byte = (uint8_t)(physLBA >> 8);
2661 *ptrLBA = physLBA_byte;
2662 ptrLBA = &pIO_req->CDB.CDB32[9];
2663 physLBA_byte = (uint8_t)physLBA;
2664 *ptrLBA = physLBA_byte;
2667 * Set flag that Direct Drive I/O is
2670 cm->cm_flags |= MPS_CM_FLAGS_DD_IO;
2677 #if __FreeBSD_version >= 900026
2679 mpssas_smpio_complete(struct mps_softc *sc, struct mps_command *cm)
2681 MPI2_SMP_PASSTHROUGH_REPLY *rpl;
2682 MPI2_SMP_PASSTHROUGH_REQUEST *req;
2686 ccb = cm->cm_complete_data;
2689 * Currently there should be no way we can hit this case. It only
2690 * happens when we have a failure to allocate chain frames, and SMP
2691 * commands require two S/G elements only. That should be handled
2692 * in the standard request size.
2694 if ((cm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) {
2695 mps_dprint(sc, MPS_ERROR,"%s: cm_flags = %#x on SMP request!\n",
2696 __func__, cm->cm_flags);
2697 mpssas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR);
2701 rpl = (MPI2_SMP_PASSTHROUGH_REPLY *)cm->cm_reply;
2703 mps_dprint(sc, MPS_ERROR, "%s: NULL cm_reply!\n", __func__);
2704 mpssas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR);
2708 req = (MPI2_SMP_PASSTHROUGH_REQUEST *)cm->cm_req;
2709 sasaddr = le32toh(req->SASAddress.Low);
2710 sasaddr |= ((uint64_t)(le32toh(req->SASAddress.High))) << 32;
2712 if ((le16toh(rpl->IOCStatus) & MPI2_IOCSTATUS_MASK) !=
2713 MPI2_IOCSTATUS_SUCCESS ||
2714 rpl->SASStatus != MPI2_SASSTATUS_SUCCESS) {
2715 mps_dprint(sc, MPS_XINFO, "%s: IOCStatus %04x SASStatus %02x\n",
2716 __func__, le16toh(rpl->IOCStatus), rpl->SASStatus);
2717 mpssas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR);
2721 mps_dprint(sc, MPS_XINFO, "%s: SMP request to SAS address "
2722 "%#jx completed successfully\n", __func__,
2723 (uintmax_t)sasaddr);
2725 if (ccb->smpio.smp_response[2] == SMP_FR_ACCEPTED)
2726 mpssas_set_ccbstatus(ccb, CAM_REQ_CMP);
2728 mpssas_set_ccbstatus(ccb, CAM_SMP_STATUS_ERROR);
2732 * We sync in both directions because we had DMAs in the S/G list
2733 * in both directions.
2735 bus_dmamap_sync(sc->buffer_dmat, cm->cm_dmamap,
2736 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
2737 bus_dmamap_unload(sc->buffer_dmat, cm->cm_dmamap);
2738 mps_free_command(sc, cm);
2743 mpssas_send_smpcmd(struct mpssas_softc *sassc, union ccb *ccb, uint64_t sasaddr)
2745 struct mps_command *cm;
2746 uint8_t *request, *response;
2747 MPI2_SMP_PASSTHROUGH_REQUEST *req;
2748 struct mps_softc *sc;
2755 * XXX We don't yet support physical addresses here.
2757 switch ((ccb->ccb_h.flags & CAM_DATA_MASK)) {
2758 case CAM_DATA_PADDR:
2759 case CAM_DATA_SG_PADDR:
2760 mps_dprint(sc, MPS_ERROR,
2761 "%s: physical addresses not supported\n", __func__);
2762 mpssas_set_ccbstatus(ccb, CAM_REQ_INVALID);
2767 * The chip does not support more than one buffer for the
2768 * request or response.
2770 if ((ccb->smpio.smp_request_sglist_cnt > 1)
2771 || (ccb->smpio.smp_response_sglist_cnt > 1)) {
2772 mps_dprint(sc, MPS_ERROR,
2773 "%s: multiple request or response "
2774 "buffer segments not supported for SMP\n",
2776 mpssas_set_ccbstatus(ccb, CAM_REQ_INVALID);
2782 * The CAM_SCATTER_VALID flag was originally implemented
2783 * for the XPT_SCSI_IO CCB, which only has one data pointer.
2784 * We have two. So, just take that flag to mean that we
2785 * might have S/G lists, and look at the S/G segment count
2786 * to figure out whether that is the case for each individual
2789 if (ccb->smpio.smp_request_sglist_cnt != 0) {
2790 bus_dma_segment_t *req_sg;
2792 req_sg = (bus_dma_segment_t *)ccb->smpio.smp_request;
2793 request = (uint8_t *)(uintptr_t)req_sg[0].ds_addr;
2795 request = ccb->smpio.smp_request;
2797 if (ccb->smpio.smp_response_sglist_cnt != 0) {
2798 bus_dma_segment_t *rsp_sg;
2800 rsp_sg = (bus_dma_segment_t *)ccb->smpio.smp_response;
2801 response = (uint8_t *)(uintptr_t)rsp_sg[0].ds_addr;
2803 response = ccb->smpio.smp_response;
2805 case CAM_DATA_VADDR:
2806 request = ccb->smpio.smp_request;
2807 response = ccb->smpio.smp_response;
2810 mpssas_set_ccbstatus(ccb, CAM_REQ_INVALID);
2815 cm = mps_alloc_command(sc);
2817 mps_dprint(sc, MPS_ERROR,
2818 "%s: cannot allocate command\n", __func__);
2819 mpssas_set_ccbstatus(ccb, CAM_RESRC_UNAVAIL);
2824 req = (MPI2_SMP_PASSTHROUGH_REQUEST *)cm->cm_req;
2825 bzero(req, sizeof(*req));
2826 req->Function = MPI2_FUNCTION_SMP_PASSTHROUGH;
2828 /* Allow the chip to use any route to this SAS address. */
2829 req->PhysicalPort = 0xff;
2831 req->RequestDataLength = htole16(ccb->smpio.smp_request_len);
2833 MPI2_SGLFLAGS_SYSTEM_ADDRESS_SPACE | MPI2_SGLFLAGS_SGL_TYPE_MPI;
2835 mps_dprint(sc, MPS_XINFO, "%s: sending SMP request to SAS "
2836 "address %#jx\n", __func__, (uintmax_t)sasaddr);
2838 mpi_init_sge(cm, req, &req->SGL);
2841 * Set up a uio to pass into mps_map_command(). This allows us to
2842 * do one map command, and one busdma call in there.
2844 cm->cm_uio.uio_iov = cm->cm_iovec;
2845 cm->cm_uio.uio_iovcnt = 2;
2846 cm->cm_uio.uio_segflg = UIO_SYSSPACE;
2849 * The read/write flag isn't used by busdma, but set it just in
2850 * case. This isn't exactly accurate, either, since we're going in
2853 cm->cm_uio.uio_rw = UIO_WRITE;
2855 cm->cm_iovec[0].iov_base = request;
2856 cm->cm_iovec[0].iov_len = le16toh(req->RequestDataLength);
2857 cm->cm_iovec[1].iov_base = response;
2858 cm->cm_iovec[1].iov_len = ccb->smpio.smp_response_len;
2860 cm->cm_uio.uio_resid = cm->cm_iovec[0].iov_len +
2861 cm->cm_iovec[1].iov_len;
2864 * Trigger a warning message in mps_data_cb() for the user if we
2865 * wind up exceeding two S/G segments. The chip expects one
2866 * segment for the request and another for the response.
2868 cm->cm_max_segs = 2;
2870 cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
2871 cm->cm_complete = mpssas_smpio_complete;
2872 cm->cm_complete_data = ccb;
2875 * Tell the mapping code that we're using a uio, and that this is
2876 * an SMP passthrough request. There is a little special-case
2877 * logic there (in mps_data_cb()) to handle the bidirectional
2880 cm->cm_flags |= MPS_CM_FLAGS_USE_UIO | MPS_CM_FLAGS_SMP_PASS |
2881 MPS_CM_FLAGS_DATAIN | MPS_CM_FLAGS_DATAOUT;
2883 /* The chip data format is little endian. */
2884 req->SASAddress.High = htole32(sasaddr >> 32);
2885 req->SASAddress.Low = htole32(sasaddr);
2888 * XXX Note that we don't have a timeout/abort mechanism here.
2889 * From the manual, it looks like task management requests only
2890 * work for SCSI IO and SATA passthrough requests. We may need to
2891 * have a mechanism to retry requests in the event of a chip reset
2892 * at least. Hopefully the chip will insure that any errors short
2893 * of that are relayed back to the driver.
2895 error = mps_map_command(sc, cm);
2896 if ((error != 0) && (error != EINPROGRESS)) {
2897 mps_dprint(sc, MPS_ERROR,
2898 "%s: error %d returned from mps_map_command()\n",
2906 mps_free_command(sc, cm);
2907 mpssas_set_ccbstatus(ccb, CAM_RESRC_UNAVAIL);
2914 mpssas_action_smpio(struct mpssas_softc *sassc, union ccb *ccb)
2916 struct mps_softc *sc;
2917 struct mpssas_target *targ;
2918 uint64_t sasaddr = 0;
2923 * Make sure the target exists.
2925 KASSERT(ccb->ccb_h.target_id < sassc->maxtargets,
2926 ("Target %d out of bounds in XPT_SMP_IO\n", ccb->ccb_h.target_id));
2927 targ = &sassc->targets[ccb->ccb_h.target_id];
2928 if (targ->handle == 0x0) {
2929 mps_dprint(sc, MPS_ERROR,
2930 "%s: target %d does not exist!\n", __func__,
2931 ccb->ccb_h.target_id);
2932 mpssas_set_ccbstatus(ccb, CAM_SEL_TIMEOUT);
2938 * If this device has an embedded SMP target, we'll talk to it
2940 * figure out what the expander's address is.
2942 if ((targ->devinfo & MPI2_SAS_DEVICE_INFO_SMP_TARGET) != 0)
2943 sasaddr = targ->sasaddr;
2946 * If we don't have a SAS address for the expander yet, try
2947 * grabbing it from the page 0x83 information cached in the
2948 * transport layer for this target. LSI expanders report the
2949 * expander SAS address as the port-associated SAS address in
2950 * Inquiry VPD page 0x83. Maxim expanders don't report it in page
2953 * XXX KDM disable this for now, but leave it commented out so that
2954 * it is obvious that this is another possible way to get the SAS
2957 * The parent handle method below is a little more reliable, and
2958 * the other benefit is that it works for devices other than SES
2959 * devices. So you can send a SMP request to a da(4) device and it
2960 * will get routed to the expander that device is attached to.
2961 * (Assuming the da(4) device doesn't contain an SMP target...)
2965 sasaddr = xpt_path_sas_addr(ccb->ccb_h.path);
2969 * If we still don't have a SAS address for the expander, look for
2970 * the parent device of this device, which is probably the expander.
2973 #ifdef OLD_MPS_PROBE
2974 struct mpssas_target *parent_target;
2977 if (targ->parent_handle == 0x0) {
2978 mps_dprint(sc, MPS_ERROR,
2979 "%s: handle %d does not have a valid "
2980 "parent handle!\n", __func__, targ->handle);
2981 mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE);
2984 #ifdef OLD_MPS_PROBE
2985 parent_target = mpssas_find_target_by_handle(sassc, 0,
2986 targ->parent_handle);
2988 if (parent_target == NULL) {
2989 mps_dprint(sc, MPS_ERROR,
2990 "%s: handle %d does not have a valid "
2991 "parent target!\n", __func__, targ->handle);
2992 mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE);
2996 if ((parent_target->devinfo &
2997 MPI2_SAS_DEVICE_INFO_SMP_TARGET) == 0) {
2998 mps_dprint(sc, MPS_ERROR,
2999 "%s: handle %d parent %d does not "
3000 "have an SMP target!\n", __func__,
3001 targ->handle, parent_target->handle);
3002 mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE);
3007 sasaddr = parent_target->sasaddr;
3008 #else /* OLD_MPS_PROBE */
3009 if ((targ->parent_devinfo &
3010 MPI2_SAS_DEVICE_INFO_SMP_TARGET) == 0) {
3011 mps_dprint(sc, MPS_ERROR,
3012 "%s: handle %d parent %d does not "
3013 "have an SMP target!\n", __func__,
3014 targ->handle, targ->parent_handle);
3015 mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE);
3019 if (targ->parent_sasaddr == 0x0) {
3020 mps_dprint(sc, MPS_ERROR,
3021 "%s: handle %d parent handle %d does "
3022 "not have a valid SAS address!\n",
3023 __func__, targ->handle, targ->parent_handle);
3024 mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE);
3028 sasaddr = targ->parent_sasaddr;
3029 #endif /* OLD_MPS_PROBE */
3034 mps_dprint(sc, MPS_INFO,
3035 "%s: unable to find SAS address for handle %d\n",
3036 __func__, targ->handle);
3037 mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE);
3040 mpssas_send_smpcmd(sassc, ccb, sasaddr);
3048 #endif //__FreeBSD_version >= 900026
3051 mpssas_action_resetdev(struct mpssas_softc *sassc, union ccb *ccb)
3053 MPI2_SCSI_TASK_MANAGE_REQUEST *req;
3054 struct mps_softc *sc;
3055 struct mps_command *tm;
3056 struct mpssas_target *targ;
3058 MPS_FUNCTRACE(sassc->sc);
3059 mtx_assert(&sassc->sc->mps_mtx, MA_OWNED);
3061 KASSERT(ccb->ccb_h.target_id < sassc->maxtargets,
3062 ("Target %d out of bounds in XPT_RESET_DEV\n",
3063 ccb->ccb_h.target_id));
3065 tm = mpssas_alloc_tm(sc);
3067 mps_dprint(sc, MPS_ERROR,
3068 "command alloc failure in mpssas_action_resetdev\n");
3069 mpssas_set_ccbstatus(ccb, CAM_RESRC_UNAVAIL);
3074 targ = &sassc->targets[ccb->ccb_h.target_id];
3075 req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req;
3076 req->DevHandle = htole16(targ->handle);
3077 req->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
3079 /* SAS Hard Link Reset / SATA Link Reset */
3080 req->MsgFlags = MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET;
3083 tm->cm_complete = mpssas_resetdev_complete;
3084 tm->cm_complete_data = ccb;
3087 mpssas_prepare_for_tm(sc, tm, targ, CAM_LUN_WILDCARD);
3088 mps_map_command(sc, tm);
3092 mpssas_resetdev_complete(struct mps_softc *sc, struct mps_command *tm)
3094 MPI2_SCSI_TASK_MANAGE_REPLY *resp;
3098 mtx_assert(&sc->mps_mtx, MA_OWNED);
3100 resp = (MPI2_SCSI_TASK_MANAGE_REPLY *)tm->cm_reply;
3101 ccb = tm->cm_complete_data;
3104 * Currently there should be no way we can hit this case. It only
3105 * happens when we have a failure to allocate chain frames, and
3106 * task management commands don't have S/G lists.
3108 if ((tm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) {
3109 MPI2_SCSI_TASK_MANAGE_REQUEST *req;
3111 req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req;
3113 mps_dprint(sc, MPS_ERROR,
3114 "%s: cm_flags = %#x for reset of handle %#04x! "
3115 "This should not happen!\n", __func__, tm->cm_flags,
3117 mpssas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR);
3121 mps_dprint(sc, MPS_XINFO,
3122 "%s: IOCStatus = 0x%x ResponseCode = 0x%x\n", __func__,
3123 le16toh(resp->IOCStatus), le32toh(resp->ResponseCode));
3125 if (le32toh(resp->ResponseCode) == MPI2_SCSITASKMGMT_RSP_TM_COMPLETE) {
3126 mpssas_set_ccbstatus(ccb, CAM_REQ_CMP);
3127 mpssas_announce_reset(sc, AC_SENT_BDR, tm->cm_targ->tid,
3131 mpssas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR);
3135 mpssas_free_tm(sc, tm);
3140 mpssas_poll(struct cam_sim *sim)
3142 struct mpssas_softc *sassc;
3144 sassc = cam_sim_softc(sim);
3146 if (sassc->sc->mps_debug & MPS_TRACE) {
3147 /* frequent debug messages during a panic just slow
3148 * everything down too much.
3150 mps_printf(sassc->sc, "%s clearing MPS_TRACE\n", __func__);
3151 sassc->sc->mps_debug &= ~MPS_TRACE;
3154 mps_intr_locked(sassc->sc);
3158 mpssas_async(void *callback_arg, uint32_t code, struct cam_path *path,
3161 struct mps_softc *sc;
3163 sc = (struct mps_softc *)callback_arg;
3166 #if (__FreeBSD_version >= 1000006) || \
3167 ((__FreeBSD_version >= 901503) && (__FreeBSD_version < 1000000))
3168 case AC_ADVINFO_CHANGED: {
3169 struct mpssas_target *target;
3170 struct mpssas_softc *sassc;
3171 struct scsi_read_capacity_data_long rcap_buf;
3172 struct ccb_dev_advinfo cdai;
3173 struct mpssas_lun *lun;
3178 buftype = (uintptr_t)arg;
3184 * We're only interested in read capacity data changes.
3186 if (buftype != CDAI_TYPE_RCAPLONG)
3190 * We should have a handle for this, but check to make sure.
3192 KASSERT(xpt_path_target_id(path) < sassc->maxtargets,
3193 ("Target %d out of bounds in mpssas_async\n",
3194 xpt_path_target_id(path)));
3195 target = &sassc->targets[xpt_path_target_id(path)];
3196 if (target->handle == 0)
3199 lunid = xpt_path_lun_id(path);
3201 SLIST_FOREACH(lun, &target->luns, lun_link) {
3202 if (lun->lun_id == lunid) {
3208 if (found_lun == 0) {
3209 lun = malloc(sizeof(struct mpssas_lun), M_MPT2,
3212 mps_dprint(sc, MPS_ERROR, "Unable to alloc "
3213 "LUN for EEDP support.\n");
3216 lun->lun_id = lunid;
3217 SLIST_INSERT_HEAD(&target->luns, lun, lun_link);
3220 bzero(&rcap_buf, sizeof(rcap_buf));
3221 xpt_setup_ccb(&cdai.ccb_h, path, CAM_PRIORITY_NORMAL);
3222 cdai.ccb_h.func_code = XPT_DEV_ADVINFO;
3223 cdai.ccb_h.flags = CAM_DIR_IN;
3224 cdai.buftype = CDAI_TYPE_RCAPLONG;
3225 #if (__FreeBSD_version >= 1100061) || \
3226 ((__FreeBSD_version >= 1001510) && (__FreeBSD_version < 1100000))
3227 cdai.flags = CDAI_FLAG_NONE;
3231 cdai.bufsiz = sizeof(rcap_buf);
3232 cdai.buf = (uint8_t *)&rcap_buf;
3233 xpt_action((union ccb *)&cdai);
3234 if ((cdai.ccb_h.status & CAM_DEV_QFRZN) != 0)
3235 cam_release_devq(cdai.ccb_h.path,
3238 if ((mpssas_get_ccbstatus((union ccb *)&cdai) == CAM_REQ_CMP)
3239 && (rcap_buf.prot & SRC16_PROT_EN)) {
3240 switch (rcap_buf.prot & SRC16_P_TYPE) {
3243 lun->eedp_formatted = TRUE;
3244 lun->eedp_block_size =
3245 scsi_4btoul(rcap_buf.length);
3249 lun->eedp_formatted = FALSE;
3250 lun->eedp_block_size = 0;
3254 lun->eedp_formatted = FALSE;
3255 lun->eedp_block_size = 0;
3260 case AC_FOUND_DEVICE: {
3261 struct ccb_getdev *cgd;
3264 mpssas_check_eedp(sc, path, cgd);
3273 #if (__FreeBSD_version < 901503) || \
3274 ((__FreeBSD_version >= 1000000) && (__FreeBSD_version < 1000006))
3276 mpssas_check_eedp(struct mps_softc *sc, struct cam_path *path,
3277 struct ccb_getdev *cgd)
3279 struct mpssas_softc *sassc = sc->sassc;
3280 struct ccb_scsiio *csio;
3281 struct scsi_read_capacity_16 *scsi_cmd;
3282 struct scsi_read_capacity_eedp *rcap_buf;
3284 target_id_t targetid;
3287 struct cam_path *local_path;
3288 struct mpssas_target *target;
3289 struct mpssas_lun *lun;
3294 pathid = cam_sim_path(sassc->sim);
3295 targetid = xpt_path_target_id(path);
3296 lunid = xpt_path_lun_id(path);
3298 KASSERT(targetid < sassc->maxtargets,
3299 ("Target %d out of bounds in mpssas_check_eedp\n",
3301 target = &sassc->targets[targetid];
3302 if (target->handle == 0x0)
3306 * Determine if the device is EEDP capable.
3308 * If this flag is set in the inquiry data,
3309 * the device supports protection information,
3310 * and must support the 16 byte read
3311 * capacity command, otherwise continue without
3312 * sending read cap 16
3314 if ((cgd->inq_data.spc3_flags & SPC3_SID_PROTECT) == 0)
3318 * Issue a READ CAPACITY 16 command. This info
3319 * is used to determine if the LUN is formatted
3322 ccb = xpt_alloc_ccb_nowait();
3324 mps_dprint(sc, MPS_ERROR, "Unable to alloc CCB "
3325 "for EEDP support.\n");
3329 if (xpt_create_path(&local_path, xpt_periph,
3330 pathid, targetid, lunid) != CAM_REQ_CMP) {
3331 mps_dprint(sc, MPS_ERROR, "Unable to create "
3332 "path for EEDP support\n");
3338 * If LUN is already in list, don't create a new
3342 SLIST_FOREACH(lun, &target->luns, lun_link) {
3343 if (lun->lun_id == lunid) {
3349 lun = malloc(sizeof(struct mpssas_lun), M_MPT2,
3352 mps_dprint(sc, MPS_ERROR,
3353 "Unable to alloc LUN for EEDP support.\n");
3354 xpt_free_path(local_path);
3358 lun->lun_id = lunid;
3359 SLIST_INSERT_HEAD(&target->luns, lun,
3363 xpt_path_string(local_path, path_str, sizeof(path_str));
3365 mps_dprint(sc, MPS_INFO, "Sending read cap: path %s handle %d\n",
3366 path_str, target->handle);
3369 * Issue a READ CAPACITY 16 command for the LUN.
3370 * The mpssas_read_cap_done function will load
3371 * the read cap info into the LUN struct.
3373 rcap_buf = malloc(sizeof(struct scsi_read_capacity_eedp),
3374 M_MPT2, M_NOWAIT | M_ZERO);
3375 if (rcap_buf == NULL) {
3376 mps_dprint(sc, MPS_FAULT,
3377 "Unable to alloc read capacity buffer for EEDP support.\n");
3378 xpt_free_path(ccb->ccb_h.path);
3382 xpt_setup_ccb(&ccb->ccb_h, local_path, CAM_PRIORITY_XPT);
3384 csio->ccb_h.func_code = XPT_SCSI_IO;
3385 csio->ccb_h.flags = CAM_DIR_IN;
3386 csio->ccb_h.retry_count = 4;
3387 csio->ccb_h.cbfcnp = mpssas_read_cap_done;
3388 csio->ccb_h.timeout = 60000;
3389 csio->data_ptr = (uint8_t *)rcap_buf;
3390 csio->dxfer_len = sizeof(struct scsi_read_capacity_eedp);
3391 csio->sense_len = MPS_SENSE_LEN;
3392 csio->cdb_len = sizeof(*scsi_cmd);
3393 csio->tag_action = MSG_SIMPLE_Q_TAG;
3395 scsi_cmd = (struct scsi_read_capacity_16 *)&csio->cdb_io.cdb_bytes;
3396 bzero(scsi_cmd, sizeof(*scsi_cmd));
3397 scsi_cmd->opcode = 0x9E;
3398 scsi_cmd->service_action = SRC16_SERVICE_ACTION;
3399 ((uint8_t *)scsi_cmd)[13] = sizeof(struct scsi_read_capacity_eedp);
3401 ccb->ccb_h.ppriv_ptr1 = sassc;
3406 mpssas_read_cap_done(struct cam_periph *periph, union ccb *done_ccb)
3408 struct mpssas_softc *sassc;
3409 struct mpssas_target *target;
3410 struct mpssas_lun *lun;
3411 struct scsi_read_capacity_eedp *rcap_buf;
3413 if (done_ccb == NULL)
3416 /* Driver need to release devq, it Scsi command is
3417 * generated by driver internally.
3418 * Currently there is a single place where driver
3419 * calls scsi command internally. In future if driver
3420 * calls more scsi command internally, it needs to release
3421 * devq internally, since those command will not go back to
3424 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) ) {
3425 done_ccb->ccb_h.status &= ~CAM_DEV_QFRZN;
3426 xpt_release_devq(done_ccb->ccb_h.path,
3427 /*count*/ 1, /*run_queue*/TRUE);
3430 rcap_buf = (struct scsi_read_capacity_eedp *)done_ccb->csio.data_ptr;
3433 * Get the LUN ID for the path and look it up in the LUN list for the
3436 sassc = (struct mpssas_softc *)done_ccb->ccb_h.ppriv_ptr1;
3437 KASSERT(done_ccb->ccb_h.target_id < sassc->maxtargets,
3438 ("Target %d out of bounds in mpssas_read_cap_done\n",
3439 done_ccb->ccb_h.target_id));
3440 target = &sassc->targets[done_ccb->ccb_h.target_id];
3441 SLIST_FOREACH(lun, &target->luns, lun_link) {
3442 if (lun->lun_id != done_ccb->ccb_h.target_lun)
3446 * Got the LUN in the target's LUN list. Fill it in
3447 * with EEDP info. If the READ CAP 16 command had some
3448 * SCSI error (common if command is not supported), mark
3449 * the lun as not supporting EEDP and set the block size
3452 if ((mpssas_get_ccbstatus(done_ccb) != CAM_REQ_CMP)
3453 || (done_ccb->csio.scsi_status != SCSI_STATUS_OK)) {
3454 lun->eedp_formatted = FALSE;
3455 lun->eedp_block_size = 0;
3459 if (rcap_buf->protect & 0x01) {
3460 mps_dprint(sassc->sc, MPS_INFO, "LUN %d for "
3461 "target ID %d is formatted for EEDP "
3462 "support.\n", done_ccb->ccb_h.target_lun,
3463 done_ccb->ccb_h.target_id);
3464 lun->eedp_formatted = TRUE;
3465 lun->eedp_block_size = scsi_4btoul(rcap_buf->length);
3470 // Finished with this CCB and path.
3471 free(rcap_buf, M_MPT2);
3472 xpt_free_path(done_ccb->ccb_h.path);
3473 xpt_free_ccb(done_ccb);
3475 #endif /* (__FreeBSD_version < 901503) || \
3476 ((__FreeBSD_version >= 1000000) && (__FreeBSD_version < 1000006)) */
3479 * Set the INRESET flag for this target so that no I/O will be sent to
3480 * the target until the reset has completed. If an I/O request does
3481 * happen, the devq will be frozen. The CCB holds the path which is
3482 * used to release the devq. The devq is released and the CCB is freed
3483 * when the TM completes.
3486 mpssas_prepare_for_tm(struct mps_softc *sc, struct mps_command *tm,
3487 struct mpssas_target *target, lun_id_t lun_id)
3492 ccb = xpt_alloc_ccb_nowait();
3494 path_id = cam_sim_path(sc->sassc->sim);
3495 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, path_id,
3496 target->tid, lun_id) != CAM_REQ_CMP) {
3500 tm->cm_targ = target;
3501 target->flags |= MPSSAS_TARGET_INRESET;
3507 mpssas_startup(struct mps_softc *sc)
3511 * Send the port enable message and set the wait_for_port_enable flag.
3512 * This flag helps to keep the simq frozen until all discovery events
3515 sc->wait_for_port_enable = 1;
3516 mpssas_send_portenable(sc);
3521 mpssas_send_portenable(struct mps_softc *sc)
3523 MPI2_PORT_ENABLE_REQUEST *request;
3524 struct mps_command *cm;
3528 if ((cm = mps_alloc_command(sc)) == NULL)
3530 request = (MPI2_PORT_ENABLE_REQUEST *)cm->cm_req;
3531 request->Function = MPI2_FUNCTION_PORT_ENABLE;
3532 request->MsgFlags = 0;
3534 cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
3535 cm->cm_complete = mpssas_portenable_complete;
3539 mps_map_command(sc, cm);
3540 mps_dprint(sc, MPS_XINFO,
3541 "mps_send_portenable finished cm %p req %p complete %p\n",
3542 cm, cm->cm_req, cm->cm_complete);
3547 mpssas_portenable_complete(struct mps_softc *sc, struct mps_command *cm)
3549 MPI2_PORT_ENABLE_REPLY *reply;
3550 struct mpssas_softc *sassc;
3556 * Currently there should be no way we can hit this case. It only
3557 * happens when we have a failure to allocate chain frames, and
3558 * port enable commands don't have S/G lists.
3560 if ((cm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) {
3561 mps_dprint(sc, MPS_ERROR, "%s: cm_flags = %#x for port enable! "
3562 "This should not happen!\n", __func__, cm->cm_flags);
3565 reply = (MPI2_PORT_ENABLE_REPLY *)cm->cm_reply;
3567 mps_dprint(sc, MPS_FAULT, "Portenable NULL reply\n");
3568 else if (le16toh(reply->IOCStatus & MPI2_IOCSTATUS_MASK) !=
3569 MPI2_IOCSTATUS_SUCCESS)
3570 mps_dprint(sc, MPS_FAULT, "Portenable failed\n");
3572 mps_free_command(sc, cm);
3575 * Get WarpDrive info after discovery is complete but before the scan
3576 * starts. At this point, all devices are ready to be exposed to the
3577 * OS. If devices should be hidden instead, take them out of the
3578 * 'targets' array before the scan. The devinfo for a disk will have
3579 * some info and a volume's will be 0. Use that to remove disks.
3581 mps_wd_config_pages(sc);
3584 * Done waiting for port enable to complete. Decrement the refcount.
3585 * If refcount is 0, discovery is complete and a rescan of the bus can
3586 * take place. Since the simq was explicitly frozen before port
3587 * enable, it must be explicitly released here to keep the
3588 * freeze/release count in sync.
3590 sc->wait_for_port_enable = 0;
3591 sc->port_enable_complete = 1;
3592 wakeup(&sc->port_enable_complete);
3593 mpssas_startup_decrement(sassc);
3597 mpssas_check_id(struct mpssas_softc *sassc, int id)
3599 struct mps_softc *sc = sassc->sc;
3603 ids = &sc->exclude_ids[0];
3604 while((name = strsep(&ids, ",")) != NULL) {
3605 if (name[0] == '\0')
3607 if (strtol(name, NULL, 0) == (long)id)
3615 mpssas_realloc_targets(struct mps_softc *sc, int maxtargets)
3617 struct mpssas_softc *sassc;
3618 struct mpssas_lun *lun, *lun_tmp;
3619 struct mpssas_target *targ;
3624 * The number of targets is based on IOC Facts, so free all of
3625 * the allocated LUNs for each target and then the target buffer
3628 for (i=0; i< maxtargets; i++) {
3629 targ = &sassc->targets[i];
3630 SLIST_FOREACH_SAFE(lun, &targ->luns, lun_link, lun_tmp) {
3634 free(sassc->targets, M_MPT2);
3636 sassc->targets = malloc(sizeof(struct mpssas_target) * maxtargets,
3637 M_MPT2, M_WAITOK|M_ZERO);
3638 if (!sassc->targets) {
3639 panic("%s failed to alloc targets with error %d\n",