2 * Copyright (c) 2000, 2001 Michael Smith
3 * Copyright (c) 2000 BSDi
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * $FreeBSD: src/sys/dev/mly/mly.c,v 1.3.2.3 2001/03/05 20:17:24 msmith Exp $
28 * $DragonFly: src/sys/dev/raid/mly/mly.c,v 1.4 2003/07/19 21:14:24 dillon Exp $
31 #include <sys/param.h>
32 #include <sys/systm.h>
33 #include <sys/malloc.h>
34 #include <sys/kernel.h>
37 #include <sys/ctype.h>
38 #include <sys/ioccom.h>
41 #include <machine/bus_memio.h>
42 #include <machine/bus.h>
43 #include <machine/resource.h>
46 #include <cam/scsi/scsi_all.h>
48 #include <dev/mly/mlyreg.h>
49 #include <dev/mly/mlyio.h>
50 #include <dev/mly/mlyvar.h>
51 #define MLY_DEFINE_TABLES
52 #include <dev/mly/mly_tables.h>
54 static int mly_get_controllerinfo(struct mly_softc *sc);
55 static void mly_scan_devices(struct mly_softc *sc);
56 static void mly_rescan_btl(struct mly_softc *sc, int bus, int target);
57 static void mly_complete_rescan(struct mly_command *mc);
58 static int mly_get_eventstatus(struct mly_softc *sc);
59 static int mly_enable_mmbox(struct mly_softc *sc);
60 static int mly_flush(struct mly_softc *sc);
61 static int mly_ioctl(struct mly_softc *sc, struct mly_command_ioctl *ioctl, void **data,
62 size_t datasize, u_int8_t *status, void *sense_buffer, size_t *sense_length);
63 static void mly_fetch_event(struct mly_softc *sc);
64 static void mly_complete_event(struct mly_command *mc);
65 static void mly_process_event(struct mly_softc *sc, struct mly_event *me);
66 static void mly_periodic(void *data);
68 static int mly_immediate_command(struct mly_command *mc);
69 static int mly_start(struct mly_command *mc);
70 static void mly_complete(void *context, int pending);
72 static void mly_alloc_commands_map(void *arg, bus_dma_segment_t *segs, int nseg, int error);
73 static int mly_alloc_commands(struct mly_softc *sc);
74 static void mly_map_command(struct mly_command *mc);
75 static void mly_unmap_command(struct mly_command *mc);
77 static int mly_fwhandshake(struct mly_softc *sc);
79 static void mly_describe_controller(struct mly_softc *sc);
81 static void mly_printstate(struct mly_softc *sc);
82 static void mly_print_command(struct mly_command *mc);
83 static void mly_print_packet(struct mly_command *mc);
84 static void mly_panic(struct mly_softc *sc, char *reason);
86 void mly_print_controller(int controller);
88 static d_open_t mly_user_open;
89 static d_close_t mly_user_close;
90 static d_ioctl_t mly_user_ioctl;
91 static int mly_user_command(struct mly_softc *sc, struct mly_user_command *uc);
92 static int mly_user_health(struct mly_softc *sc, struct mly_user_health *uh);
94 #define MLY_CDEV_MAJOR 158
96 static struct cdevsw mly_cdevsw = {
113 /********************************************************************************
114 ********************************************************************************
116 ********************************************************************************
117 ********************************************************************************/
119 /********************************************************************************
120 * Initialise the controller and softc
123 mly_attach(struct mly_softc *sc)
130 * Initialise per-controller queues.
135 mly_initq_complete(sc);
137 #if __FreeBSD_version >= 500005
139 * Initialise command-completion task.
141 TASK_INIT(&sc->mly_task_complete, 0, mly_complete, sc);
144 /* disable interrupts before we start talking to the controller */
145 MLY_MASK_INTERRUPTS(sc);
148 * Wait for the controller to come ready, handshake with the firmware if required.
149 * This is typically only necessary on platforms where the controller BIOS does not
152 if ((error = mly_fwhandshake(sc)))
156 * Allocate command buffers
158 if ((error = mly_alloc_commands(sc)))
162 * Obtain controller feature information
164 if ((error = mly_get_controllerinfo(sc)))
168 * Get the current event counter for health purposes, populate the initial
169 * health status buffer.
171 if ((error = mly_get_eventstatus(sc)))
175 * Enable memory-mailbox mode
177 if ((error = mly_enable_mmbox(sc)))
183 if ((error = mly_cam_attach(sc)))
187 * Print a little information about the controller
189 mly_describe_controller(sc);
192 * Mark all attached devices for rescan
194 mly_scan_devices(sc);
197 * Instigate the first status poll immediately. Rescan completions won't
198 * happen until interrupts are enabled, which should still be before
199 * the SCSI subsystem gets to us. (XXX assuming CAM and interrupt-driven
202 mly_periodic((void *)sc);
205 * Create the control device.
207 sc->mly_dev_t = make_dev(&mly_cdevsw, device_get_unit(sc->mly_dev), UID_ROOT, GID_OPERATOR,
208 S_IRUSR | S_IWUSR, "mly%d", device_get_unit(sc->mly_dev));
209 sc->mly_dev_t->si_drv1 = sc;
211 /* enable interrupts now */
212 MLY_UNMASK_INTERRUPTS(sc);
217 /********************************************************************************
218 * Bring the controller to a state where it can be safely left alone.
221 mly_detach(struct mly_softc *sc)
226 /* kill the periodic event */
227 untimeout(mly_periodic, sc, sc->mly_periodic);
229 sc->mly_state |= MLY_STATE_SUSPEND;
231 /* flush controller */
232 mly_printf(sc, "flushing cache...");
233 printf("%s\n", mly_flush(sc) ? "failed" : "done");
235 MLY_MASK_INTERRUPTS(sc);
238 /********************************************************************************
239 ********************************************************************************
241 ********************************************************************************
242 ********************************************************************************/
244 /********************************************************************************
245 * Fill in the mly_controllerinfo and mly_controllerparam fields in the softc.
248 mly_get_controllerinfo(struct mly_softc *sc)
250 struct mly_command_ioctl mci;
256 if (sc->mly_controllerinfo != NULL)
257 free(sc->mly_controllerinfo, M_DEVBUF);
259 /* build the getcontrollerinfo ioctl and send it */
260 bzero(&mci, sizeof(mci));
261 sc->mly_controllerinfo = NULL;
262 mci.sub_ioctl = MDACIOCTL_GETCONTROLLERINFO;
263 if ((error = mly_ioctl(sc, &mci, (void **)&sc->mly_controllerinfo, sizeof(*sc->mly_controllerinfo),
264 &status, NULL, NULL)))
269 if (sc->mly_controllerparam != NULL)
270 free(sc->mly_controllerparam, M_DEVBUF);
272 /* build the getcontrollerparameter ioctl and send it */
273 bzero(&mci, sizeof(mci));
274 sc->mly_controllerparam = NULL;
275 mci.sub_ioctl = MDACIOCTL_GETCONTROLLERPARAMETER;
276 if ((error = mly_ioctl(sc, &mci, (void **)&sc->mly_controllerparam, sizeof(*sc->mly_controllerparam),
277 &status, NULL, NULL)))
285 /********************************************************************************
286 * Schedule all possible devices for a rescan.
290 mly_scan_devices(struct mly_softc *sc)
292 int bus, target, nchn;
297 * Clear any previous BTL information.
299 bzero(&sc->mly_btl, sizeof(sc->mly_btl));
302 * Mark all devices as requiring a rescan, and let the early periodic scan collect them.
304 nchn = sc->mly_controllerinfo->physical_channels_present +
305 sc->mly_controllerinfo->virtual_channels_present;
306 for (bus = 0; bus < nchn; bus++)
307 for (target = 0; target < MLY_MAX_TARGETS; target++)
308 sc->mly_btl[bus][target].mb_flags = MLY_BTL_RESCAN;
312 /********************************************************************************
313 * Rescan a device, possibly as a consequence of getting an event which suggests
314 * that it may have changed.
317 mly_rescan_btl(struct mly_softc *sc, int bus, int target)
319 struct mly_command *mc;
320 struct mly_command_ioctl *mci;
326 if (mly_alloc_command(sc, &mc))
327 return; /* we'll be retried soon */
329 /* set up the data buffer */
330 if ((mc->mc_data = malloc(sizeof(union mly_devinfo), M_DEVBUF, M_NOWAIT)) == NULL) {
331 mly_release_command(mc);
332 return; /* we'll get retried the next time a command completes */
334 bzero(mc->mc_data, sizeof(union mly_devinfo));
335 mc->mc_flags |= MLY_CMD_DATAIN;
336 mc->mc_complete = mly_complete_rescan;
338 sc->mly_btl[bus][target].mb_flags &= ~MLY_BTL_RESCAN;
343 * At this point we are committed to sending this request, as it
344 * will be the only one constructed for this particular update.
346 mci = (struct mly_command_ioctl *)&mc->mc_packet->ioctl;
347 mci->opcode = MDACMD_IOCTL;
348 mci->addr.phys.controller = 0;
349 mci->timeout.value = 30;
350 mci->timeout.scale = MLY_TIMEOUT_SECONDS;
351 if (bus >= sc->mly_controllerinfo->physical_channels_present) {
352 mc->mc_length = mci->data_size = sizeof(struct mly_ioctl_getlogdevinfovalid);
353 mci->sub_ioctl = MDACIOCTL_GETLOGDEVINFOVALID;
354 mci->addr.log.logdev = ((bus - sc->mly_controllerinfo->physical_channels_present) * MLY_MAX_TARGETS)
356 debug(2, "logical device %d", mci->addr.log.logdev);
358 mc->mc_length = mci->data_size = sizeof(struct mly_ioctl_getphysdevinfovalid);
359 mci->sub_ioctl = MDACIOCTL_GETPHYSDEVINFOVALID;
360 mci->addr.phys.lun = 0;
361 mci->addr.phys.target = target;
362 mci->addr.phys.channel = bus;
363 debug(2, "physical device %d:%d", mci->addr.phys.channel, mci->addr.phys.target);
367 * Use the ready queue to get this command dispatched.
369 mly_enqueue_ready(mc);
373 /********************************************************************************
374 * Handle the completion of a rescan operation
377 mly_complete_rescan(struct mly_command *mc)
379 struct mly_softc *sc = mc->mc_sc;
380 struct mly_ioctl_getlogdevinfovalid *ldi;
381 struct mly_ioctl_getphysdevinfovalid *pdi;
386 /* iff the command completed OK, we should use the result to update our data */
387 if (mc->mc_status == 0) {
388 if (mc->mc_length == sizeof(*ldi)) {
389 ldi = (struct mly_ioctl_getlogdevinfovalid *)mc->mc_data;
390 bus = MLY_LOGDEV_BUS(sc, ldi->logical_device_number);
391 target = MLY_LOGDEV_TARGET(ldi->logical_device_number);
392 sc->mly_btl[bus][target].mb_flags = MLY_BTL_LOGICAL; /* clears all other flags */
393 sc->mly_btl[bus][target].mb_type = ldi->raid_level;
394 sc->mly_btl[bus][target].mb_state = ldi->state;
395 debug(2, "BTL rescan for %d returns %s, %s", ldi->logical_device_number,
396 mly_describe_code(mly_table_device_type, ldi->raid_level),
397 mly_describe_code(mly_table_device_state, ldi->state));
398 } else if (mc->mc_length == sizeof(*pdi)) {
399 pdi = (struct mly_ioctl_getphysdevinfovalid *)mc->mc_data;
401 target = pdi->target;
402 sc->mly_btl[bus][target].mb_flags = MLY_BTL_PHYSICAL; /* clears all other flags */
403 sc->mly_btl[bus][target].mb_type = MLY_DEVICE_TYPE_PHYSICAL;
404 sc->mly_btl[bus][target].mb_state = pdi->state;
405 sc->mly_btl[bus][target].mb_speed = pdi->speed;
406 sc->mly_btl[bus][target].mb_width = pdi->width;
407 if (pdi->state != MLY_DEVICE_STATE_UNCONFIGURED)
408 sc->mly_btl[bus][target].mb_flags |= MLY_BTL_PROTECTED;
409 debug(2, "BTL rescan for %d:%d returns %s", bus, target,
410 mly_describe_code(mly_table_device_state, pdi->state));
412 mly_printf(sc, "BTL rescan result corrupted\n");
416 * A request sent for a device beyond the last device present will fail.
417 * We don't care about this, so we do nothing about it.
420 free(mc->mc_data, M_DEVBUF);
421 mly_release_command(mc);
424 /********************************************************************************
425 * Get the current health status and set the 'next event' counter to suit.
428 mly_get_eventstatus(struct mly_softc *sc)
430 struct mly_command_ioctl mci;
431 struct mly_health_status *mh;
435 /* build the gethealthstatus ioctl and send it */
436 bzero(&mci, sizeof(mci));
438 mci.sub_ioctl = MDACIOCTL_GETHEALTHSTATUS;
440 if ((error = mly_ioctl(sc, &mci, (void **)&mh, sizeof(*mh), &status, NULL, NULL)))
445 /* get the event counter */
446 sc->mly_event_change = mh->change_counter;
447 sc->mly_event_waiting = mh->next_event;
448 sc->mly_event_counter = mh->next_event;
450 /* save the health status into the memory mailbox */
451 bcopy(mh, &sc->mly_mmbox->mmm_health.status, sizeof(*mh));
453 debug(1, "initial change counter %d, event counter %d", mh->change_counter, mh->next_event);
459 /********************************************************************************
460 * Enable the memory mailbox mode.
463 mly_enable_mmbox(struct mly_softc *sc)
465 struct mly_command_ioctl mci;
466 u_int8_t *sp, status;
471 /* build the ioctl and send it */
472 bzero(&mci, sizeof(mci));
473 mci.sub_ioctl = MDACIOCTL_SETMEMORYMAILBOX;
474 /* set buffer addresses */
475 mci.param.setmemorymailbox.command_mailbox_physaddr =
476 sc->mly_mmbox_busaddr + offsetof(struct mly_mmbox, mmm_command);
477 mci.param.setmemorymailbox.status_mailbox_physaddr =
478 sc->mly_mmbox_busaddr + offsetof(struct mly_mmbox, mmm_status);
479 mci.param.setmemorymailbox.health_buffer_physaddr =
480 sc->mly_mmbox_busaddr + offsetof(struct mly_mmbox, mmm_health);
482 /* set buffer sizes - abuse of data_size field is revolting */
483 sp = (u_int8_t *)&mci.data_size;
484 sp[0] = ((sizeof(union mly_command_packet) * MLY_MMBOX_COMMANDS) / 1024);
485 sp[1] = (sizeof(union mly_status_packet) * MLY_MMBOX_STATUS) / 1024;
486 mci.param.setmemorymailbox.health_buffer_size = sizeof(union mly_health_region) / 1024;
488 debug(1, "memory mailbox at %p (0x%llx/%d 0x%llx/%d 0x%llx/%d", sc->mly_mmbox,
489 mci.param.setmemorymailbox.command_mailbox_physaddr, sp[0],
490 mci.param.setmemorymailbox.status_mailbox_physaddr, sp[1],
491 mci.param.setmemorymailbox.health_buffer_physaddr,
492 mci.param.setmemorymailbox.health_buffer_size);
494 if ((error = mly_ioctl(sc, &mci, NULL, 0, &status, NULL, NULL)))
498 sc->mly_state |= MLY_STATE_MMBOX_ACTIVE;
499 debug(1, "memory mailbox active");
503 /********************************************************************************
504 * Flush all pending I/O from the controller.
507 mly_flush(struct mly_softc *sc)
509 struct mly_command_ioctl mci;
515 /* build the ioctl */
516 bzero(&mci, sizeof(mci));
517 mci.sub_ioctl = MDACIOCTL_FLUSHDEVICEDATA;
518 mci.param.deviceoperation.operation_device = MLY_OPDEVICE_PHYSICAL_CONTROLLER;
520 /* pass it off to the controller */
521 if ((error = mly_ioctl(sc, &mci, NULL, 0, &status, NULL, NULL)))
524 return((status == 0) ? 0 : EIO);
527 /********************************************************************************
528 * Perform an ioctl command.
530 * If (data) is not NULL, the command requires data transfer. If (*data) is NULL
531 * the command requires data transfer from the controller, and we will allocate
532 * a buffer for it. If (*data) is not NULL, the command requires data transfer
535 * XXX passing in the whole ioctl structure is ugly. Better ideas?
537 * XXX we don't even try to handle the case where datasize > 4k. We should.
540 mly_ioctl(struct mly_softc *sc, struct mly_command_ioctl *ioctl, void **data, size_t datasize,
541 u_int8_t *status, void *sense_buffer, size_t *sense_length)
543 struct mly_command *mc;
544 struct mly_command_ioctl *mci;
550 if (mly_alloc_command(sc, &mc)) {
555 /* copy the ioctl structure, but save some important fields and then fixup */
556 mci = &mc->mc_packet->ioctl;
557 ioctl->sense_buffer_address = mci->sense_buffer_address;
558 ioctl->maximum_sense_size = mci->maximum_sense_size;
560 mci->opcode = MDACMD_IOCTL;
561 mci->timeout.value = 30;
562 mci->timeout.scale = MLY_TIMEOUT_SECONDS;
564 /* handle the data buffer */
567 /* allocate data buffer */
568 if ((mc->mc_data = malloc(datasize, M_DEVBUF, M_NOWAIT)) == NULL) {
572 mc->mc_flags |= MLY_CMD_DATAIN;
575 mc->mc_flags |= MLY_CMD_DATAOUT;
577 mc->mc_length = datasize;
578 mc->mc_packet->generic.data_size = datasize;
581 /* run the command */
582 if ((error = mly_immediate_command(mc)))
585 /* clean up and return any data */
586 *status = mc->mc_status;
587 if ((mc->mc_sense > 0) && (sense_buffer != NULL)) {
588 bcopy(mc->mc_packet, sense_buffer, mc->mc_sense);
589 *sense_length = mc->mc_sense;
593 /* should we return a data pointer? */
594 if ((data != NULL) && (*data == NULL))
597 /* command completed OK */
602 /* do we need to free a data buffer we allocated? */
603 if (error && (mc->mc_data != NULL) && (*data == NULL))
604 free(mc->mc_data, M_DEVBUF);
605 mly_release_command(mc);
610 /********************************************************************************
611 * Fetch one event from the controller.
614 mly_fetch_event(struct mly_softc *sc)
616 struct mly_command *mc;
617 struct mly_command_ioctl *mci;
625 if (mly_alloc_command(sc, &mc))
626 return; /* we'll get retried the next time a command completes */
628 /* set up the data buffer */
629 if ((mc->mc_data = malloc(sizeof(struct mly_event), M_DEVBUF, M_NOWAIT)) == NULL) {
630 mly_release_command(mc);
631 return; /* we'll get retried the next time a command completes */
633 bzero(mc->mc_data, sizeof(struct mly_event));
634 mc->mc_length = sizeof(struct mly_event);
635 mc->mc_flags |= MLY_CMD_DATAIN;
636 mc->mc_complete = mly_complete_event;
639 * Get an event number to fetch. It's possible that we've raced with another
640 * context for the last event, in which case there will be no more events.
643 if (sc->mly_event_counter == sc->mly_event_waiting) {
644 mly_release_command(mc);
648 event = sc->mly_event_counter++;
654 * At this point we are committed to sending this request, as it
655 * will be the only one constructed for this particular event number.
657 mci = (struct mly_command_ioctl *)&mc->mc_packet->ioctl;
658 mci->opcode = MDACMD_IOCTL;
659 mci->data_size = sizeof(struct mly_event);
660 mci->addr.phys.lun = (event >> 16) & 0xff;
661 mci->addr.phys.target = (event >> 24) & 0xff;
662 mci->addr.phys.channel = 0;
663 mci->addr.phys.controller = 0;
664 mci->timeout.value = 30;
665 mci->timeout.scale = MLY_TIMEOUT_SECONDS;
666 mci->sub_ioctl = MDACIOCTL_GETEVENT;
667 mci->param.getevent.sequence_number_low = event & 0xffff;
669 debug(2, "fetch event %u", event);
672 * Use the ready queue to get this command dispatched.
674 mly_enqueue_ready(mc);
678 /********************************************************************************
679 * Handle the completion of an event poll.
681 * Note that we don't actually have to instigate another poll; the completion of
682 * this command will trigger that if there are any more events to poll for.
685 mly_complete_event(struct mly_command *mc)
687 struct mly_softc *sc = mc->mc_sc;
688 struct mly_event *me = (struct mly_event *)mc->mc_data;
693 * If the event was successfully fetched, process it.
695 if (mc->mc_status == SCSI_STATUS_OK) {
696 mly_process_event(sc, me);
699 mly_release_command(mc);
702 /********************************************************************************
703 * Process a controller event.
706 mly_process_event(struct mly_softc *sc, struct mly_event *me)
708 struct scsi_sense_data *ssd = (struct scsi_sense_data *)&me->sense[0];
710 int bus, target, event, class, action;
713 * Errors can be reported using vendor-unique sense data. In this case, the
714 * event code will be 0x1c (Request sense data present), the sense key will
715 * be 0x09 (vendor specific), the MSB of the ASC will be set, and the
716 * actual event code will be a 16-bit value comprised of the ASCQ (low byte)
717 * and low seven bits of the ASC (low seven bits of the high byte).
719 if ((me->code == 0x1c) &&
720 ((ssd->flags & SSD_KEY) == SSD_KEY_Vendor_Specific) &&
721 (ssd->add_sense_code & 0x80)) {
722 event = ((int)(ssd->add_sense_code & ~0x80) << 8) + ssd->add_sense_code_qual;
727 /* look up event, get codes */
728 fp = mly_describe_code(mly_table_event, event);
730 debug(2, "Event %d code 0x%x", me->sequence_number, me->code);
734 if (isupper(class) && bootverbose)
735 class = tolower(class);
737 /* get action code, text string */
742 * Print some information about the event.
744 * This code uses a table derived from the corresponding portion of the Linux
745 * driver, and thus the parser is very similar.
748 case 'p': /* error on physical device */
749 mly_printf(sc, "physical device %d:%d %s\n", me->channel, me->target, tp);
751 sc->mly_btl[me->channel][me->target].mb_flags |= MLY_BTL_RESCAN;
753 case 'l': /* error on logical unit */
754 case 'm': /* message about logical unit */
755 bus = MLY_LOGDEV_BUS(sc, me->lun);
756 target = MLY_LOGDEV_TARGET(me->lun);
757 mly_name_device(sc, bus, target);
758 mly_printf(sc, "logical device %d (%s) %s\n", me->lun, sc->mly_btl[bus][target].mb_name, tp);
760 sc->mly_btl[bus][target].mb_flags |= MLY_BTL_RESCAN;
763 case 's': /* report of sense data */
764 if (((ssd->flags & SSD_KEY) == SSD_KEY_NO_SENSE) ||
765 (((ssd->flags & SSD_KEY) == SSD_KEY_NOT_READY) &&
766 (ssd->add_sense_code == 0x04) &&
767 ((ssd->add_sense_code_qual == 0x01) || (ssd->add_sense_code_qual == 0x02))))
768 break; /* ignore NO_SENSE or NOT_READY in one case */
770 mly_printf(sc, "physical device %d:%d %s\n", me->channel, me->target, tp);
771 mly_printf(sc, " sense key %d asc %02x ascq %02x\n",
772 ssd->flags & SSD_KEY, ssd->add_sense_code, ssd->add_sense_code_qual);
773 mly_printf(sc, " info %4D csi %4D\n", ssd->info, "", ssd->cmd_spec_info, "");
775 sc->mly_btl[me->channel][me->target].mb_flags |= MLY_BTL_RESCAN;
778 mly_printf(sc, tp, me->target, me->lun);
781 mly_printf(sc, "controller %s\n", tp);
784 mly_printf(sc, "%s - %d\n", tp, me->code);
786 default: /* probably a 'noisy' event being ignored */
791 /********************************************************************************
792 * Perform periodic activities.
795 mly_periodic(void *data)
797 struct mly_softc *sc = (struct mly_softc *)data;
798 int nchn, bus, target;
805 nchn = sc->mly_controllerinfo->physical_channels_present +
806 sc->mly_controllerinfo->virtual_channels_present;
807 for (bus = 0; bus < nchn; bus++) {
808 for (target = 0; target < MLY_MAX_TARGETS; target++) {
810 /* ignore the controller in this scan */
811 if (target == sc->mly_controllerparam->initiator_id)
814 /* perform device rescan? */
815 if (sc->mly_btl[bus][target].mb_flags & MLY_BTL_RESCAN)
816 mly_rescan_btl(sc, bus, target);
820 sc->mly_periodic = timeout(mly_periodic, sc, hz);
823 /********************************************************************************
824 ********************************************************************************
826 ********************************************************************************
827 ********************************************************************************/
829 /********************************************************************************
830 * Run a command and wait for it to complete.
834 mly_immediate_command(struct mly_command *mc)
836 struct mly_softc *sc = mc->mc_sc;
841 /* spinning at splcam is ugly, but we're only used during controller init */
843 if ((error = mly_start(mc)))
846 if (sc->mly_state & MLY_STATE_INTERRUPTS_ON) {
847 /* sleep on the command */
848 while(!(mc->mc_flags & MLY_CMD_COMPLETE)) {
849 tsleep(mc, 0, "mlywait", 0);
852 /* spin and collect status while we do */
853 while(!(mc->mc_flags & MLY_CMD_COMPLETE)) {
861 /********************************************************************************
862 * Start as much queued I/O as possible on the controller
865 mly_startio(struct mly_softc *sc)
867 struct mly_command *mc;
873 /* try for a ready command */
874 mc = mly_dequeue_ready(sc);
876 /* try to build a command from a queued ccb */
878 mly_cam_command(sc, &mc);
880 /* no command == nothing to do */
884 /* try to post the command */
886 /* controller busy, or no resources - defer for later */
887 mly_requeue_ready(mc);
893 /********************************************************************************
894 * Deliver a command to the controller; allocate controller resources at the
898 mly_start(struct mly_command *mc)
900 struct mly_softc *sc = mc->mc_sc;
901 union mly_command_packet *pkt;
907 * Set the command up for delivery to the controller.
910 mc->mc_packet->generic.command_id = mc->mc_slot;
915 * Do we have to use the hardware mailbox?
917 if (!(sc->mly_state & MLY_STATE_MMBOX_ACTIVE)) {
919 * Check to see if the controller is ready for us.
921 if (MLY_IDBR_TRUE(sc, MLY_HM_CMDSENT)) {
925 mc->mc_flags |= MLY_CMD_BUSY;
928 * It's ready, send the command.
930 MLY_SET_MBOX(sc, sc->mly_command_mailbox, &mc->mc_packetphys);
931 MLY_SET_REG(sc, sc->mly_idbr, MLY_HM_CMDSENT);
933 } else { /* use memory-mailbox mode */
935 pkt = &sc->mly_mmbox->mmm_command[sc->mly_mmbox_command_index];
937 /* check to see if the next index is free yet */
938 if (pkt->mmbox.flag != 0) {
942 mc->mc_flags |= MLY_CMD_BUSY;
944 /* copy in new command */
945 bcopy(mc->mc_packet->mmbox.data, pkt->mmbox.data, sizeof(pkt->mmbox.data));
946 /* barrier to ensure completion of previous write before we write the flag */
947 bus_space_barrier(NULL, NULL, 0, 0, BUS_SPACE_BARRIER_WRITE); /* tag/handle? */
949 pkt->mmbox.flag = mc->mc_packet->mmbox.flag;
950 /* barrier to ensure completion of previous write before we notify the controller */
951 bus_space_barrier(NULL, NULL, 0, 0, BUS_SPACE_BARRIER_WRITE); /* tag/handle */
953 /* signal controller, update index */
954 MLY_SET_REG(sc, sc->mly_idbr, MLY_AM_CMDSENT);
955 sc->mly_mmbox_command_index = (sc->mly_mmbox_command_index + 1) % MLY_MMBOX_COMMANDS;
958 mly_enqueue_busy(mc);
963 /********************************************************************************
964 * Pick up command status from the controller, schedule a completion event
967 mly_done(struct mly_softc *sc)
969 struct mly_command *mc;
970 union mly_status_packet *sp;
977 /* pick up hardware-mailbox commands */
978 if (MLY_ODBR_TRUE(sc, MLY_HM_STSREADY)) {
979 slot = MLY_GET_REG2(sc, sc->mly_status_mailbox);
980 if (slot < MLY_SLOT_MAX) {
981 mc = &sc->mly_command[slot - MLY_SLOT_START];
982 mc->mc_status = MLY_GET_REG(sc, sc->mly_status_mailbox + 2);
983 mc->mc_sense = MLY_GET_REG(sc, sc->mly_status_mailbox + 3);
984 mc->mc_resid = MLY_GET_REG4(sc, sc->mly_status_mailbox + 4);
986 mc->mc_flags &= ~MLY_CMD_BUSY;
987 mly_enqueue_complete(mc);
990 /* slot 0xffff may mean "extremely bogus command" */
991 mly_printf(sc, "got HM completion for illegal slot %u\n", slot);
993 /* unconditionally acknowledge status */
994 MLY_SET_REG(sc, sc->mly_odbr, MLY_HM_STSREADY);
995 MLY_SET_REG(sc, sc->mly_idbr, MLY_HM_STSACK);
998 /* pick up memory-mailbox commands */
999 if (MLY_ODBR_TRUE(sc, MLY_AM_STSREADY)) {
1001 sp = &sc->mly_mmbox->mmm_status[sc->mly_mmbox_status_index];
1003 /* check for more status */
1004 if (sp->mmbox.flag == 0)
1007 /* get slot number */
1008 slot = sp->status.command_id;
1009 if (slot < MLY_SLOT_MAX) {
1010 mc = &sc->mly_command[slot - MLY_SLOT_START];
1011 mc->mc_status = sp->status.status;
1012 mc->mc_sense = sp->status.sense_length;
1013 mc->mc_resid = sp->status.residue;
1014 mly_remove_busy(mc);
1015 mc->mc_flags &= ~MLY_CMD_BUSY;
1016 mly_enqueue_complete(mc);
1019 /* slot 0xffff may mean "extremely bogus command" */
1020 mly_printf(sc, "got AM completion for illegal slot %u at %d\n",
1021 slot, sc->mly_mmbox_status_index);
1024 /* clear and move to next index */
1026 sc->mly_mmbox_status_index = (sc->mly_mmbox_status_index + 1) % MLY_MMBOX_STATUS;
1028 /* acknowledge that we have collected status value(s) */
1029 MLY_SET_REG(sc, sc->mly_odbr, MLY_AM_STSREADY);
1034 #if __FreeBSD_version >= 500005
1035 if (sc->mly_state & MLY_STATE_INTERRUPTS_ON)
1036 taskqueue_enqueue(taskqueue_swi, &sc->mly_task_complete);
1039 mly_complete(sc, 0);
1043 /********************************************************************************
1044 * Process completed commands
1047 mly_complete(void *context, int pending)
1049 struct mly_softc *sc = (struct mly_softc *)context;
1050 struct mly_command *mc;
1051 void (* mc_complete)(struct mly_command *mc);
1057 * Spin pulling commands off the completed queue and processing them.
1059 while ((mc = mly_dequeue_complete(sc)) != NULL) {
1062 * Free controller resources, mark command complete.
1064 * Note that as soon as we mark the command complete, it may be freed
1065 * out from under us, so we need to save the mc_complete field in
1066 * order to later avoid dereferencing mc. (We would not expect to
1067 * have a polling/sleeping consumer with mc_complete != NULL).
1069 mly_unmap_command(mc);
1070 mc_complete = mc->mc_complete;
1071 mc->mc_flags |= MLY_CMD_COMPLETE;
1074 * Call completion handler or wake up sleeping consumer.
1076 if (mc_complete != NULL) {
1084 * We may have freed up controller resources which would allow us
1085 * to push more commands onto the controller, so we check here.
1090 * The controller may have updated the health status information,
1091 * so check for it here.
1093 * Note that we only check for health status after a completed command. It
1094 * might be wise to ping the controller occasionally if it's been idle for
1095 * a while just to check up on it. While a filesystem is mounted, or I/O is
1096 * active this isn't really an issue.
1098 if (sc->mly_mmbox->mmm_health.status.change_counter != sc->mly_event_change) {
1099 sc->mly_event_change = sc->mly_mmbox->mmm_health.status.change_counter;
1100 debug(1, "event change %d, event status update, %d -> %d", sc->mly_event_change,
1101 sc->mly_event_waiting, sc->mly_mmbox->mmm_health.status.next_event);
1102 sc->mly_event_waiting = sc->mly_mmbox->mmm_health.status.next_event;
1104 /* wake up anyone that might be interested in this */
1105 wakeup(&sc->mly_event_change);
1107 if (sc->mly_event_counter != sc->mly_event_waiting)
1108 mly_fetch_event(sc);
1111 /********************************************************************************
1112 ********************************************************************************
1113 Command Buffer Management
1114 ********************************************************************************
1115 ********************************************************************************/
1117 /********************************************************************************
1118 * Allocate a command.
1121 mly_alloc_command(struct mly_softc *sc, struct mly_command **mcp)
1123 struct mly_command *mc;
1127 if ((mc = mly_dequeue_free(sc)) == NULL)
1134 /********************************************************************************
1135 * Release a command back to the freelist.
1138 mly_release_command(struct mly_command *mc)
1143 * Fill in parts of the command that may cause confusion if
1144 * a consumer doesn't when we are later allocated.
1148 mc->mc_complete = NULL;
1149 mc->mc_private = NULL;
1152 * By default, we set up to overwrite the command packet with
1153 * sense information.
1155 mc->mc_packet->generic.sense_buffer_address = mc->mc_packetphys;
1156 mc->mc_packet->generic.maximum_sense_size = sizeof(union mly_command_packet);
1158 mly_enqueue_free(mc);
1161 /********************************************************************************
1162 * Map helper for command allocation.
1165 mly_alloc_commands_map(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1167 struct mly_softc *sc = (struct mly_softc *)arg
1171 sc->mly_packetphys = segs[0].ds_addr;
1174 /********************************************************************************
1175 * Allocate and initialise command and packet structures.
1178 mly_alloc_commands(struct mly_softc *sc)
1180 struct mly_command *mc;
1184 * Allocate enough space for all the command packets in one chunk and
1185 * map them permanently into controller-visible space.
1187 if (bus_dmamem_alloc(sc->mly_packet_dmat, (void **)&sc->mly_packet,
1188 BUS_DMA_NOWAIT, &sc->mly_packetmap)) {
1191 bus_dmamap_load(sc->mly_packet_dmat, sc->mly_packetmap, sc->mly_packet,
1192 MLY_MAXCOMMANDS * sizeof(union mly_command_packet),
1193 mly_alloc_commands_map, sc, 0);
1195 for (i = 0; i < MLY_MAXCOMMANDS; i++) {
1196 mc = &sc->mly_command[i];
1197 bzero(mc, sizeof(*mc));
1199 mc->mc_slot = MLY_SLOT_START + i;
1200 mc->mc_packet = sc->mly_packet + i;
1201 mc->mc_packetphys = sc->mly_packetphys + (i * sizeof(union mly_command_packet));
1202 if (!bus_dmamap_create(sc->mly_buffer_dmat, 0, &mc->mc_datamap))
1203 mly_release_command(mc);
1208 /********************************************************************************
1209 * Command-mapping helper function - populate this command's s/g table
1210 * with the s/g entries for its data.
1213 mly_map_command_sg(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1215 struct mly_command *mc = (struct mly_command *)arg;
1216 struct mly_softc *sc = mc->mc_sc;
1217 struct mly_command_generic *gen = &(mc->mc_packet->generic);
1218 struct mly_sg_entry *sg;
1223 /* can we use the transfer structure directly? */
1225 sg = &gen->transfer.direct.sg[0];
1226 gen->command_control.extended_sg_table = 0;
1228 tabofs = ((mc->mc_slot - MLY_SLOT_START) * MLY_MAXSGENTRIES);
1229 sg = sc->mly_sg_table + tabofs;
1230 gen->transfer.indirect.entries[0] = nseg;
1231 gen->transfer.indirect.table_physaddr[0] = sc->mly_sg_busaddr + (tabofs * sizeof(struct mly_sg_entry));
1232 gen->command_control.extended_sg_table = 1;
1235 /* copy the s/g table */
1236 for (i = 0; i < nseg; i++) {
1237 sg[i].physaddr = segs[i].ds_addr;
1238 sg[i].length = segs[i].ds_len;
1244 /********************************************************************************
1245 * Command-mapping helper function - save the cdb's physical address.
1247 * We don't support 'large' SCSI commands at this time, so this is unused.
1250 mly_map_command_cdb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1252 struct mly_command *mc = (struct mly_command *)arg;
1256 /* XXX can we safely assume that a CDB will never cross a page boundary? */
1257 if ((segs[0].ds_addr % PAGE_SIZE) >
1258 ((segs[0].ds_addr + mc->mc_packet->scsi_large.cdb_length) % PAGE_SIZE))
1259 panic("cdb crosses page boundary");
1261 /* fix up fields in the command packet */
1262 mc->mc_packet->scsi_large.cdb_physaddr = segs[0].ds_addr;
1266 /********************************************************************************
1267 * Map a command into controller-visible space
1270 mly_map_command(struct mly_command *mc)
1272 struct mly_softc *sc = mc->mc_sc;
1276 /* don't map more than once */
1277 if (mc->mc_flags & MLY_CMD_MAPPED)
1280 /* does the command have a data buffer? */
1281 if (mc->mc_data != NULL)
1282 bus_dmamap_load(sc->mly_buffer_dmat, mc->mc_datamap, mc->mc_data, mc->mc_length,
1283 mly_map_command_sg, mc, 0);
1285 if (mc->mc_flags & MLY_CMD_DATAIN)
1286 bus_dmamap_sync(sc->mly_buffer_dmat, mc->mc_datamap, BUS_DMASYNC_PREREAD);
1287 if (mc->mc_flags & MLY_CMD_DATAOUT)
1288 bus_dmamap_sync(sc->mly_buffer_dmat, mc->mc_datamap, BUS_DMASYNC_PREWRITE);
1290 mc->mc_flags |= MLY_CMD_MAPPED;
1293 /********************************************************************************
1294 * Unmap a command from controller-visible space
1297 mly_unmap_command(struct mly_command *mc)
1299 struct mly_softc *sc = mc->mc_sc;
1303 if (!(mc->mc_flags & MLY_CMD_MAPPED))
1306 if (mc->mc_flags & MLY_CMD_DATAIN)
1307 bus_dmamap_sync(sc->mly_buffer_dmat, mc->mc_datamap, BUS_DMASYNC_POSTREAD);
1308 if (mc->mc_flags & MLY_CMD_DATAOUT)
1309 bus_dmamap_sync(sc->mly_buffer_dmat, mc->mc_datamap, BUS_DMASYNC_POSTWRITE);
1311 /* does the command have a data buffer? */
1312 if (mc->mc_data != NULL)
1313 bus_dmamap_unload(sc->mly_buffer_dmat, mc->mc_datamap);
1315 mc->mc_flags &= ~MLY_CMD_MAPPED;
1318 /********************************************************************************
1319 ********************************************************************************
1321 ********************************************************************************
1322 ********************************************************************************/
1324 /********************************************************************************
1325 * Handshake with the firmware while the card is being initialised.
1328 mly_fwhandshake(struct mly_softc *sc)
1330 u_int8_t error, param0, param1;
1335 /* set HM_STSACK and let the firmware initialise */
1336 MLY_SET_REG(sc, sc->mly_idbr, MLY_HM_STSACK);
1337 DELAY(1000); /* too short? */
1339 /* if HM_STSACK is still true, the controller is initialising */
1340 if (!MLY_IDBR_TRUE(sc, MLY_HM_STSACK))
1342 mly_printf(sc, "controller initialisation started\n");
1344 /* spin waiting for initialisation to finish, or for a message to be delivered */
1345 while (MLY_IDBR_TRUE(sc, MLY_HM_STSACK)) {
1346 /* check for a message */
1347 if (MLY_ERROR_VALID(sc)) {
1348 error = MLY_GET_REG(sc, sc->mly_error_status) & ~MLY_MSG_EMPTY;
1349 param0 = MLY_GET_REG(sc, sc->mly_command_mailbox);
1350 param1 = MLY_GET_REG(sc, sc->mly_command_mailbox + 1);
1353 case MLY_MSG_SPINUP:
1355 mly_printf(sc, "drive spinup in progress\n");
1356 spinup = 1; /* only print this once (should print drive being spun?) */
1359 case MLY_MSG_RACE_RECOVERY_FAIL:
1360 mly_printf(sc, "mirror race recovery failed, one or more drives offline\n");
1362 case MLY_MSG_RACE_IN_PROGRESS:
1363 mly_printf(sc, "mirror race recovery in progress\n");
1365 case MLY_MSG_RACE_ON_CRITICAL:
1366 mly_printf(sc, "mirror race recovery on a critical drive\n");
1368 case MLY_MSG_PARITY_ERROR:
1369 mly_printf(sc, "FATAL MEMORY PARITY ERROR\n");
1372 mly_printf(sc, "unknown initialisation code 0x%x\n", error);
1379 /********************************************************************************
1380 ********************************************************************************
1381 Debugging and Diagnostics
1382 ********************************************************************************
1383 ********************************************************************************/
1385 /********************************************************************************
1386 * Print some information about the controller.
1389 mly_describe_controller(struct mly_softc *sc)
1391 struct mly_ioctl_getcontrollerinfo *mi = sc->mly_controllerinfo;
1393 mly_printf(sc, "%16s, %d channel%s, firmware %d.%02d-%d-%02d (%02d%02d%02d%02d), %dMB RAM\n",
1394 mi->controller_name, mi->physical_channels_present, (mi->physical_channels_present) > 1 ? "s" : "",
1395 mi->fw_major, mi->fw_minor, mi->fw_turn, mi->fw_build, /* XXX turn encoding? */
1396 mi->fw_century, mi->fw_year, mi->fw_month, mi->fw_day,
1400 mly_printf(sc, "%s %s (%x), %dMHz %d-bit %.16s\n",
1401 mly_describe_code(mly_table_oemname, mi->oem_information),
1402 mly_describe_code(mly_table_controllertype, mi->controller_type), mi->controller_type,
1403 mi->interface_speed, mi->interface_width, mi->interface_name);
1404 mly_printf(sc, "%dMB %dMHz %d-bit %s%s%s, cache %dMB\n",
1405 mi->memory_size, mi->memory_speed, mi->memory_width,
1406 mly_describe_code(mly_table_memorytype, mi->memory_type),
1407 mi->memory_parity ? "+parity": "",mi->memory_ecc ? "+ECC": "",
1409 mly_printf(sc, "CPU: %s @ %dMHZ\n",
1410 mly_describe_code(mly_table_cputype, mi->cpu[0].type), mi->cpu[0].speed);
1411 if (mi->l2cache_size != 0)
1412 mly_printf(sc, "%dKB L2 cache\n", mi->l2cache_size);
1413 if (mi->exmemory_size != 0)
1414 mly_printf(sc, "%dMB %dMHz %d-bit private %s%s%s\n",
1415 mi->exmemory_size, mi->exmemory_speed, mi->exmemory_width,
1416 mly_describe_code(mly_table_memorytype, mi->exmemory_type),
1417 mi->exmemory_parity ? "+parity": "",mi->exmemory_ecc ? "+ECC": "");
1418 mly_printf(sc, "battery backup %s\n", mi->bbu_present ? "present" : "not installed");
1419 mly_printf(sc, "maximum data transfer %d blocks, maximum sg entries/command %d\n",
1420 mi->maximum_block_count, mi->maximum_sg_entries);
1421 mly_printf(sc, "logical devices present/critical/offline %d/%d/%d\n",
1422 mi->logical_devices_present, mi->logical_devices_critical, mi->logical_devices_offline);
1423 mly_printf(sc, "physical devices present %d\n",
1424 mi->physical_devices_present);
1425 mly_printf(sc, "physical disks present/offline %d/%d\n",
1426 mi->physical_disks_present, mi->physical_disks_offline);
1427 mly_printf(sc, "%d physical channel%s, %d virtual channel%s of %d possible\n",
1428 mi->physical_channels_present, mi->physical_channels_present == 1 ? "" : "s",
1429 mi->virtual_channels_present, mi->virtual_channels_present == 1 ? "" : "s",
1430 mi->virtual_channels_possible);
1431 mly_printf(sc, "%d parallel commands supported\n", mi->maximum_parallel_commands);
1432 mly_printf(sc, "%dMB flash ROM, %d of %d maximum cycles\n",
1433 mi->flash_size, mi->flash_age, mi->flash_maximum_age);
1438 /********************************************************************************
1439 * Print some controller state
1442 mly_printstate(struct mly_softc *sc)
1444 mly_printf(sc, "IDBR %02x ODBR %02x ERROR %02x (%x %x %x)\n",
1445 MLY_GET_REG(sc, sc->mly_idbr),
1446 MLY_GET_REG(sc, sc->mly_odbr),
1447 MLY_GET_REG(sc, sc->mly_error_status),
1450 sc->mly_error_status);
1451 mly_printf(sc, "IMASK %02x ISTATUS %02x\n",
1452 MLY_GET_REG(sc, sc->mly_interrupt_mask),
1453 MLY_GET_REG(sc, sc->mly_interrupt_status));
1454 mly_printf(sc, "COMMAND %02x %02x %02x %02x %02x %02x %02x %02x\n",
1455 MLY_GET_REG(sc, sc->mly_command_mailbox),
1456 MLY_GET_REG(sc, sc->mly_command_mailbox + 1),
1457 MLY_GET_REG(sc, sc->mly_command_mailbox + 2),
1458 MLY_GET_REG(sc, sc->mly_command_mailbox + 3),
1459 MLY_GET_REG(sc, sc->mly_command_mailbox + 4),
1460 MLY_GET_REG(sc, sc->mly_command_mailbox + 5),
1461 MLY_GET_REG(sc, sc->mly_command_mailbox + 6),
1462 MLY_GET_REG(sc, sc->mly_command_mailbox + 7));
1463 mly_printf(sc, "STATUS %02x %02x %02x %02x %02x %02x %02x %02x\n",
1464 MLY_GET_REG(sc, sc->mly_status_mailbox),
1465 MLY_GET_REG(sc, sc->mly_status_mailbox + 1),
1466 MLY_GET_REG(sc, sc->mly_status_mailbox + 2),
1467 MLY_GET_REG(sc, sc->mly_status_mailbox + 3),
1468 MLY_GET_REG(sc, sc->mly_status_mailbox + 4),
1469 MLY_GET_REG(sc, sc->mly_status_mailbox + 5),
1470 MLY_GET_REG(sc, sc->mly_status_mailbox + 6),
1471 MLY_GET_REG(sc, sc->mly_status_mailbox + 7));
1472 mly_printf(sc, " %04x %08x\n",
1473 MLY_GET_REG2(sc, sc->mly_status_mailbox),
1474 MLY_GET_REG4(sc, sc->mly_status_mailbox + 4));
1477 struct mly_softc *mly_softc0 = NULL;
1479 mly_printstate0(void)
1481 if (mly_softc0 != NULL)
1482 mly_printstate(mly_softc0);
1485 /********************************************************************************
1489 mly_print_command(struct mly_command *mc)
1491 struct mly_softc *sc = mc->mc_sc;
1493 mly_printf(sc, "COMMAND @ %p\n", mc);
1494 mly_printf(sc, " slot %d\n", mc->mc_slot);
1495 mly_printf(sc, " status 0x%x\n", mc->mc_status);
1496 mly_printf(sc, " sense len %d\n", mc->mc_sense);
1497 mly_printf(sc, " resid %d\n", mc->mc_resid);
1498 mly_printf(sc, " packet %p/0x%llx\n", mc->mc_packet, mc->mc_packetphys);
1499 if (mc->mc_packet != NULL)
1500 mly_print_packet(mc);
1501 mly_printf(sc, " data %p/%d\n", mc->mc_data, mc->mc_length);
1502 mly_printf(sc, " flags %b\n", mc->mc_flags, "\20\1busy\2complete\3slotted\4mapped\5datain\6dataout\n");
1503 mly_printf(sc, " complete %p\n", mc->mc_complete);
1504 mly_printf(sc, " private %p\n", mc->mc_private);
1507 /********************************************************************************
1508 * Print a command packet
1511 mly_print_packet(struct mly_command *mc)
1513 struct mly_softc *sc = mc->mc_sc;
1514 struct mly_command_generic *ge = (struct mly_command_generic *)mc->mc_packet;
1515 struct mly_command_scsi_small *ss = (struct mly_command_scsi_small *)mc->mc_packet;
1516 struct mly_command_scsi_large *sl = (struct mly_command_scsi_large *)mc->mc_packet;
1517 struct mly_command_ioctl *io = (struct mly_command_ioctl *)mc->mc_packet;
1520 mly_printf(sc, " command_id %d\n", ge->command_id);
1521 mly_printf(sc, " opcode %d\n", ge->opcode);
1522 mly_printf(sc, " command_control fua %d dpo %d est %d dd %s nas %d ddis %d\n",
1523 ge->command_control.force_unit_access,
1524 ge->command_control.disable_page_out,
1525 ge->command_control.extended_sg_table,
1526 (ge->command_control.data_direction == MLY_CCB_WRITE) ? "WRITE" : "READ",
1527 ge->command_control.no_auto_sense,
1528 ge->command_control.disable_disconnect);
1529 mly_printf(sc, " data_size %d\n", ge->data_size);
1530 mly_printf(sc, " sense_buffer_address 0x%llx\n", ge->sense_buffer_address);
1531 mly_printf(sc, " lun %d\n", ge->addr.phys.lun);
1532 mly_printf(sc, " target %d\n", ge->addr.phys.target);
1533 mly_printf(sc, " channel %d\n", ge->addr.phys.channel);
1534 mly_printf(sc, " logical device %d\n", ge->addr.log.logdev);
1535 mly_printf(sc, " controller %d\n", ge->addr.phys.controller);
1536 mly_printf(sc, " timeout %d %s\n",
1538 (ge->timeout.scale == MLY_TIMEOUT_SECONDS) ? "seconds" :
1539 ((ge->timeout.scale == MLY_TIMEOUT_MINUTES) ? "minutes" : "hours"));
1540 mly_printf(sc, " maximum_sense_size %d\n", ge->maximum_sense_size);
1541 switch(ge->opcode) {
1544 mly_printf(sc, " cdb length %d\n", ss->cdb_length);
1545 mly_printf(sc, " cdb %*D\n", ss->cdb_length, ss->cdb, " ");
1549 case MDACMD_SCSILCPT:
1550 mly_printf(sc, " cdb length %d\n", sl->cdb_length);
1551 mly_printf(sc, " cdb 0x%llx\n", sl->cdb_physaddr);
1555 mly_printf(sc, " sub_ioctl 0x%x\n", io->sub_ioctl);
1556 switch(io->sub_ioctl) {
1557 case MDACIOCTL_SETMEMORYMAILBOX:
1558 mly_printf(sc, " health_buffer_size %d\n",
1559 io->param.setmemorymailbox.health_buffer_size);
1560 mly_printf(sc, " health_buffer_phys 0x%llx\n",
1561 io->param.setmemorymailbox.health_buffer_physaddr);
1562 mly_printf(sc, " command_mailbox 0x%llx\n",
1563 io->param.setmemorymailbox.command_mailbox_physaddr);
1564 mly_printf(sc, " status_mailbox 0x%llx\n",
1565 io->param.setmemorymailbox.status_mailbox_physaddr);
1569 case MDACIOCTL_SETREALTIMECLOCK:
1570 case MDACIOCTL_GETHEALTHSTATUS:
1571 case MDACIOCTL_GETCONTROLLERINFO:
1572 case MDACIOCTL_GETLOGDEVINFOVALID:
1573 case MDACIOCTL_GETPHYSDEVINFOVALID:
1574 case MDACIOCTL_GETPHYSDEVSTATISTICS:
1575 case MDACIOCTL_GETLOGDEVSTATISTICS:
1576 case MDACIOCTL_GETCONTROLLERSTATISTICS:
1577 case MDACIOCTL_GETBDT_FOR_SYSDRIVE:
1578 case MDACIOCTL_CREATENEWCONF:
1579 case MDACIOCTL_ADDNEWCONF:
1580 case MDACIOCTL_GETDEVCONFINFO:
1581 case MDACIOCTL_GETFREESPACELIST:
1582 case MDACIOCTL_MORE:
1583 case MDACIOCTL_SETPHYSDEVPARAMETER:
1584 case MDACIOCTL_GETPHYSDEVPARAMETER:
1585 case MDACIOCTL_GETLOGDEVPARAMETER:
1586 case MDACIOCTL_SETLOGDEVPARAMETER:
1587 mly_printf(sc, " param %10D\n", io->param.data.param, " ");
1591 case MDACIOCTL_GETEVENT:
1592 mly_printf(sc, " event %d\n",
1593 io->param.getevent.sequence_number_low + ((u_int32_t)io->addr.log.logdev << 16));
1597 case MDACIOCTL_SETRAIDDEVSTATE:
1598 mly_printf(sc, " state %d\n", io->param.setraiddevstate.state);
1602 case MDACIOCTL_XLATEPHYSDEVTORAIDDEV:
1603 mly_printf(sc, " raid_device %d\n", io->param.xlatephysdevtoraiddev.raid_device);
1604 mly_printf(sc, " controller %d\n", io->param.xlatephysdevtoraiddev.controller);
1605 mly_printf(sc, " channel %d\n", io->param.xlatephysdevtoraiddev.channel);
1606 mly_printf(sc, " target %d\n", io->param.xlatephysdevtoraiddev.target);
1607 mly_printf(sc, " lun %d\n", io->param.xlatephysdevtoraiddev.lun);
1611 case MDACIOCTL_GETGROUPCONFINFO:
1612 mly_printf(sc, " group %d\n", io->param.getgroupconfinfo.group);
1616 case MDACIOCTL_GET_SUBSYSTEM_DATA:
1617 case MDACIOCTL_SET_SUBSYSTEM_DATA:
1618 case MDACIOCTL_STARTDISOCVERY:
1619 case MDACIOCTL_INITPHYSDEVSTART:
1620 case MDACIOCTL_INITPHYSDEVSTOP:
1621 case MDACIOCTL_INITRAIDDEVSTART:
1622 case MDACIOCTL_INITRAIDDEVSTOP:
1623 case MDACIOCTL_REBUILDRAIDDEVSTART:
1624 case MDACIOCTL_REBUILDRAIDDEVSTOP:
1625 case MDACIOCTL_MAKECONSISTENTDATASTART:
1626 case MDACIOCTL_MAKECONSISTENTDATASTOP:
1627 case MDACIOCTL_CONSISTENCYCHECKSTART:
1628 case MDACIOCTL_CONSISTENCYCHECKSTOP:
1629 case MDACIOCTL_RESETDEVICE:
1630 case MDACIOCTL_FLUSHDEVICEDATA:
1631 case MDACIOCTL_PAUSEDEVICE:
1632 case MDACIOCTL_UNPAUSEDEVICE:
1633 case MDACIOCTL_LOCATEDEVICE:
1634 case MDACIOCTL_SETMASTERSLAVEMODE:
1635 case MDACIOCTL_DELETERAIDDEV:
1636 case MDACIOCTL_REPLACEINTERNALDEV:
1637 case MDACIOCTL_CLEARCONF:
1638 case MDACIOCTL_GETCONTROLLERPARAMETER:
1639 case MDACIOCTL_SETCONTRLLERPARAMETER:
1640 case MDACIOCTL_CLEARCONFSUSPMODE:
1641 case MDACIOCTL_STOREIMAGE:
1642 case MDACIOCTL_READIMAGE:
1643 case MDACIOCTL_FLASHIMAGES:
1644 case MDACIOCTL_RENAMERAIDDEV:
1645 default: /* no idea what to print */
1651 case MDACMD_IOCTLCHECK:
1652 case MDACMD_MEMCOPY:
1655 break; /* print nothing */
1658 if (ge->command_control.extended_sg_table) {
1659 mly_printf(sc, " sg table 0x%llx/%d\n",
1660 ge->transfer.indirect.table_physaddr[0], ge->transfer.indirect.entries[0]);
1662 mly_printf(sc, " 0000 0x%llx/%lld\n",
1663 ge->transfer.direct.sg[0].physaddr, ge->transfer.direct.sg[0].length);
1664 mly_printf(sc, " 0001 0x%llx/%lld\n",
1665 ge->transfer.direct.sg[1].physaddr, ge->transfer.direct.sg[1].length);
1670 /********************************************************************************
1671 * Panic in a slightly informative fashion
1674 mly_panic(struct mly_softc *sc, char *reason)
1681 /********************************************************************************
1682 * Print queue statistics, callable from DDB.
1685 mly_print_controller(int controller)
1687 struct mly_softc *sc;
1689 if ((sc = devclass_get_softc(devclass_find("mly"), controller)) == NULL) {
1690 printf("mly: controller %d invalid\n", controller);
1692 device_printf(sc->mly_dev, "queue curr max\n");
1693 device_printf(sc->mly_dev, "free %04d/%04d\n",
1694 sc->mly_qstat[MLYQ_FREE].q_length, sc->mly_qstat[MLYQ_FREE].q_max);
1695 device_printf(sc->mly_dev, "ready %04d/%04d\n",
1696 sc->mly_qstat[MLYQ_READY].q_length, sc->mly_qstat[MLYQ_READY].q_max);
1697 device_printf(sc->mly_dev, "busy %04d/%04d\n",
1698 sc->mly_qstat[MLYQ_BUSY].q_length, sc->mly_qstat[MLYQ_BUSY].q_max);
1699 device_printf(sc->mly_dev, "complete %04d/%04d\n",
1700 sc->mly_qstat[MLYQ_COMPLETE].q_length, sc->mly_qstat[MLYQ_COMPLETE].q_max);
1705 /********************************************************************************
1706 ********************************************************************************
1707 Control device interface
1708 ********************************************************************************
1709 ********************************************************************************/
1711 /********************************************************************************
1712 * Accept an open operation on the control device.
1715 mly_user_open(dev_t dev, int flags, int fmt, d_thread_t *td)
1717 int unit = minor(dev);
1718 struct mly_softc *sc = devclass_get_softc(devclass_find("mly"), unit);
1720 sc->mly_state |= MLY_STATE_OPEN;
1724 /********************************************************************************
1725 * Accept the last close on the control device.
1728 mly_user_close(dev_t dev, int flags, int fmt, d_thread_t *td)
1730 int unit = minor(dev);
1731 struct mly_softc *sc = devclass_get_softc(devclass_find("mly"), unit);
1733 sc->mly_state &= ~MLY_STATE_OPEN;
1737 /********************************************************************************
1738 * Handle controller-specific control operations.
1741 mly_user_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *td)
1743 struct mly_softc *sc = (struct mly_softc *)dev->si_drv1;
1744 struct mly_user_command *uc = (struct mly_user_command *)addr;
1745 struct mly_user_health *uh = (struct mly_user_health *)addr;
1749 return(mly_user_command(sc, uc));
1751 return(mly_user_health(sc, uh));
1757 /********************************************************************************
1758 * Execute a command passed in from userspace.
1760 * The control structure contains the actual command for the controller, as well
1761 * as the user-space data pointer and data size, and an optional sense buffer
1762 * size/pointer. On completion, the data size is adjusted to the command
1763 * residual, and the sense buffer size to the size of the returned sense data.
1767 mly_user_command(struct mly_softc *sc, struct mly_user_command *uc)
1769 struct mly_command *mc;
1772 /* allocate a command */
1773 if (mly_alloc_command(sc, &mc)) {
1775 goto out; /* XXX Linux version will wait for a command */
1778 /* handle data size/direction */
1779 mc->mc_length = (uc->DataTransferLength >= 0) ? uc->DataTransferLength : -uc->DataTransferLength;
1780 if (mc->mc_length > 0) {
1781 if ((mc->mc_data = malloc(mc->mc_length, M_DEVBUF, M_NOWAIT)) == NULL) {
1786 if (uc->DataTransferLength > 0) {
1787 mc->mc_flags |= MLY_CMD_DATAIN;
1788 bzero(mc->mc_data, mc->mc_length);
1790 if (uc->DataTransferLength < 0) {
1791 mc->mc_flags |= MLY_CMD_DATAOUT;
1792 if ((error = copyin(uc->DataTransferBuffer, mc->mc_data, mc->mc_length)) != 0)
1796 /* copy the controller command */
1797 bcopy(&uc->CommandMailbox, mc->mc_packet, sizeof(uc->CommandMailbox));
1799 /* clear command completion handler so that we get woken up */
1800 mc->mc_complete = NULL;
1802 /* execute the command */
1804 mly_requeue_ready(mc);
1806 while (!(mc->mc_flags & MLY_CMD_COMPLETE))
1807 tsleep(mc, 0, "mlyioctl", 0);
1810 /* return the data to userspace */
1811 if (uc->DataTransferLength > 0)
1812 if ((error = copyout(mc->mc_data, uc->DataTransferBuffer, mc->mc_length)) != 0)
1815 /* return the sense buffer to userspace */
1816 if ((uc->RequestSenseLength > 0) && (mc->mc_sense > 0)) {
1817 if ((error = copyout(mc->mc_packet, uc->RequestSenseBuffer,
1818 min(uc->RequestSenseLength, mc->mc_sense))) != 0)
1822 /* return command results to userspace (caller will copy out) */
1823 uc->DataTransferLength = mc->mc_resid;
1824 uc->RequestSenseLength = min(uc->RequestSenseLength, mc->mc_sense);
1825 uc->CommandStatus = mc->mc_status;
1829 if (mc->mc_data != NULL)
1830 free(mc->mc_data, M_DEVBUF);
1832 mly_release_command(mc);
1836 /********************************************************************************
1837 * Return health status to userspace. If the health change index in the user
1838 * structure does not match that currently exported by the controller, we
1839 * return the current status immediately. Otherwise, we block until either
1840 * interrupted or new status is delivered.
1843 mly_user_health(struct mly_softc *sc, struct mly_user_health *uh)
1845 struct mly_health_status mh;
1848 /* fetch the current health status from userspace */
1849 if ((error = copyin(uh->HealthStatusBuffer, &mh, sizeof(mh))) != 0)
1852 /* spin waiting for a status update */
1854 error = EWOULDBLOCK;
1855 while ((error != 0) && (sc->mly_event_change == mh.change_counter))
1856 error = tsleep(&sc->mly_event_change, PCATCH, "mlyhealth", 0);
1859 /* copy the controller's health status buffer out (there is a race here if it changes again) */
1860 error = copyout(&sc->mly_mmbox->mmm_health.status, uh->HealthStatusBuffer,
1861 sizeof(uh->HealthStatusBuffer));