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 1.9 2004/05/19 22:52:48 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 <bus/cam/scsi/scsi_all.h>
51 #define MLY_DEFINE_TABLES
52 #include "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 = {
98 /* cmaj */ MLY_CDEV_MAJOR,
115 /********************************************************************************
116 ********************************************************************************
118 ********************************************************************************
119 ********************************************************************************/
121 /********************************************************************************
122 * Initialise the controller and softc
125 mly_attach(struct mly_softc *sc)
132 * Initialise per-controller queues.
137 mly_initq_complete(sc);
139 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005
141 * Initialise command-completion task.
143 TASK_INIT(&sc->mly_task_complete, 0, mly_complete, sc);
146 /* disable interrupts before we start talking to the controller */
147 MLY_MASK_INTERRUPTS(sc);
150 * Wait for the controller to come ready, handshake with the firmware if required.
151 * This is typically only necessary on platforms where the controller BIOS does not
154 if ((error = mly_fwhandshake(sc)))
158 * Allocate command buffers
160 if ((error = mly_alloc_commands(sc)))
164 * Obtain controller feature information
166 if ((error = mly_get_controllerinfo(sc)))
170 * Get the current event counter for health purposes, populate the initial
171 * health status buffer.
173 if ((error = mly_get_eventstatus(sc)))
177 * Enable memory-mailbox mode
179 if ((error = mly_enable_mmbox(sc)))
185 if ((error = mly_cam_attach(sc)))
189 * Print a little information about the controller
191 mly_describe_controller(sc);
194 * Mark all attached devices for rescan
196 mly_scan_devices(sc);
199 * Instigate the first status poll immediately. Rescan completions won't
200 * happen until interrupts are enabled, which should still be before
201 * the SCSI subsystem gets to us. (XXX assuming CAM and interrupt-driven
204 mly_periodic((void *)sc);
207 * Create the control device.
209 cdevsw_add(&mly_cdevsw, -1, device_get_unit(sc->mly_dev));
210 sc->mly_dev_t = make_dev(&mly_cdevsw, device_get_unit(sc->mly_dev),
211 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR,
212 "mly%d", device_get_unit(sc->mly_dev));
213 sc->mly_dev_t->si_drv1 = sc;
215 /* enable interrupts now */
216 MLY_UNMASK_INTERRUPTS(sc);
221 /********************************************************************************
222 * Bring the controller to a state where it can be safely left alone.
225 mly_detach(struct mly_softc *sc)
230 /* kill the periodic event */
231 untimeout(mly_periodic, sc, sc->mly_periodic);
233 sc->mly_state |= MLY_STATE_SUSPEND;
235 /* flush controller */
236 mly_printf(sc, "flushing cache...");
237 printf("%s\n", mly_flush(sc) ? "failed" : "done");
239 MLY_MASK_INTERRUPTS(sc);
242 /********************************************************************************
243 ********************************************************************************
245 ********************************************************************************
246 ********************************************************************************/
248 /********************************************************************************
249 * Fill in the mly_controllerinfo and mly_controllerparam fields in the softc.
252 mly_get_controllerinfo(struct mly_softc *sc)
254 struct mly_command_ioctl mci;
260 if (sc->mly_controllerinfo != NULL)
261 free(sc->mly_controllerinfo, M_DEVBUF);
263 /* build the getcontrollerinfo ioctl and send it */
264 bzero(&mci, sizeof(mci));
265 sc->mly_controllerinfo = NULL;
266 mci.sub_ioctl = MDACIOCTL_GETCONTROLLERINFO;
267 if ((error = mly_ioctl(sc, &mci, (void **)&sc->mly_controllerinfo, sizeof(*sc->mly_controllerinfo),
268 &status, NULL, NULL)))
273 if (sc->mly_controllerparam != NULL)
274 free(sc->mly_controllerparam, M_DEVBUF);
276 /* build the getcontrollerparameter ioctl and send it */
277 bzero(&mci, sizeof(mci));
278 sc->mly_controllerparam = NULL;
279 mci.sub_ioctl = MDACIOCTL_GETCONTROLLERPARAMETER;
280 if ((error = mly_ioctl(sc, &mci, (void **)&sc->mly_controllerparam, sizeof(*sc->mly_controllerparam),
281 &status, NULL, NULL)))
289 /********************************************************************************
290 * Schedule all possible devices for a rescan.
294 mly_scan_devices(struct mly_softc *sc)
296 int bus, target, nchn;
301 * Clear any previous BTL information.
303 bzero(&sc->mly_btl, sizeof(sc->mly_btl));
306 * Mark all devices as requiring a rescan, and let the early periodic scan collect them.
308 nchn = sc->mly_controllerinfo->physical_channels_present +
309 sc->mly_controllerinfo->virtual_channels_present;
310 for (bus = 0; bus < nchn; bus++)
311 for (target = 0; target < MLY_MAX_TARGETS; target++)
312 sc->mly_btl[bus][target].mb_flags = MLY_BTL_RESCAN;
316 /********************************************************************************
317 * Rescan a device, possibly as a consequence of getting an event which suggests
318 * that it may have changed.
321 mly_rescan_btl(struct mly_softc *sc, int bus, int target)
323 struct mly_command *mc;
324 struct mly_command_ioctl *mci;
330 if (mly_alloc_command(sc, &mc))
331 return; /* we'll be retried soon */
333 /* set up the data buffer */
334 if ((mc->mc_data = malloc(sizeof(union mly_devinfo), M_DEVBUF, M_NOWAIT)) == NULL) {
335 mly_release_command(mc);
336 return; /* we'll get retried the next time a command completes */
338 bzero(mc->mc_data, sizeof(union mly_devinfo));
339 mc->mc_flags |= MLY_CMD_DATAIN;
340 mc->mc_complete = mly_complete_rescan;
342 sc->mly_btl[bus][target].mb_flags &= ~MLY_BTL_RESCAN;
347 * At this point we are committed to sending this request, as it
348 * will be the only one constructed for this particular update.
350 mci = (struct mly_command_ioctl *)&mc->mc_packet->ioctl;
351 mci->opcode = MDACMD_IOCTL;
352 mci->addr.phys.controller = 0;
353 mci->timeout.value = 30;
354 mci->timeout.scale = MLY_TIMEOUT_SECONDS;
355 if (bus >= sc->mly_controllerinfo->physical_channels_present) {
356 mc->mc_length = mci->data_size = sizeof(struct mly_ioctl_getlogdevinfovalid);
357 mci->sub_ioctl = MDACIOCTL_GETLOGDEVINFOVALID;
358 mci->addr.log.logdev = ((bus - sc->mly_controllerinfo->physical_channels_present) * MLY_MAX_TARGETS)
360 debug(2, "logical device %d", mci->addr.log.logdev);
362 mc->mc_length = mci->data_size = sizeof(struct mly_ioctl_getphysdevinfovalid);
363 mci->sub_ioctl = MDACIOCTL_GETPHYSDEVINFOVALID;
364 mci->addr.phys.lun = 0;
365 mci->addr.phys.target = target;
366 mci->addr.phys.channel = bus;
367 debug(2, "physical device %d:%d", mci->addr.phys.channel, mci->addr.phys.target);
371 * Use the ready queue to get this command dispatched.
373 mly_enqueue_ready(mc);
377 /********************************************************************************
378 * Handle the completion of a rescan operation
381 mly_complete_rescan(struct mly_command *mc)
383 struct mly_softc *sc = mc->mc_sc;
384 struct mly_ioctl_getlogdevinfovalid *ldi;
385 struct mly_ioctl_getphysdevinfovalid *pdi;
390 /* iff the command completed OK, we should use the result to update our data */
391 if (mc->mc_status == 0) {
392 if (mc->mc_length == sizeof(*ldi)) {
393 ldi = (struct mly_ioctl_getlogdevinfovalid *)mc->mc_data;
394 bus = MLY_LOGDEV_BUS(sc, ldi->logical_device_number);
395 target = MLY_LOGDEV_TARGET(ldi->logical_device_number);
396 sc->mly_btl[bus][target].mb_flags = MLY_BTL_LOGICAL; /* clears all other flags */
397 sc->mly_btl[bus][target].mb_type = ldi->raid_level;
398 sc->mly_btl[bus][target].mb_state = ldi->state;
399 debug(2, "BTL rescan for %d returns %s, %s", ldi->logical_device_number,
400 mly_describe_code(mly_table_device_type, ldi->raid_level),
401 mly_describe_code(mly_table_device_state, ldi->state));
402 } else if (mc->mc_length == sizeof(*pdi)) {
403 pdi = (struct mly_ioctl_getphysdevinfovalid *)mc->mc_data;
405 target = pdi->target;
406 sc->mly_btl[bus][target].mb_flags = MLY_BTL_PHYSICAL; /* clears all other flags */
407 sc->mly_btl[bus][target].mb_type = MLY_DEVICE_TYPE_PHYSICAL;
408 sc->mly_btl[bus][target].mb_state = pdi->state;
409 sc->mly_btl[bus][target].mb_speed = pdi->speed;
410 sc->mly_btl[bus][target].mb_width = pdi->width;
411 if (pdi->state != MLY_DEVICE_STATE_UNCONFIGURED)
412 sc->mly_btl[bus][target].mb_flags |= MLY_BTL_PROTECTED;
413 debug(2, "BTL rescan for %d:%d returns %s", bus, target,
414 mly_describe_code(mly_table_device_state, pdi->state));
416 mly_printf(sc, "BTL rescan result corrupted\n");
420 * A request sent for a device beyond the last device present will fail.
421 * We don't care about this, so we do nothing about it.
424 free(mc->mc_data, M_DEVBUF);
425 mly_release_command(mc);
428 /********************************************************************************
429 * Get the current health status and set the 'next event' counter to suit.
432 mly_get_eventstatus(struct mly_softc *sc)
434 struct mly_command_ioctl mci;
435 struct mly_health_status *mh;
439 /* build the gethealthstatus ioctl and send it */
440 bzero(&mci, sizeof(mci));
442 mci.sub_ioctl = MDACIOCTL_GETHEALTHSTATUS;
444 if ((error = mly_ioctl(sc, &mci, (void **)&mh, sizeof(*mh), &status, NULL, NULL)))
449 /* get the event counter */
450 sc->mly_event_change = mh->change_counter;
451 sc->mly_event_waiting = mh->next_event;
452 sc->mly_event_counter = mh->next_event;
454 /* save the health status into the memory mailbox */
455 bcopy(mh, &sc->mly_mmbox->mmm_health.status, sizeof(*mh));
457 debug(1, "initial change counter %d, event counter %d", mh->change_counter, mh->next_event);
463 /********************************************************************************
464 * Enable the memory mailbox mode.
467 mly_enable_mmbox(struct mly_softc *sc)
469 struct mly_command_ioctl mci;
470 u_int8_t *sp, status;
475 /* build the ioctl and send it */
476 bzero(&mci, sizeof(mci));
477 mci.sub_ioctl = MDACIOCTL_SETMEMORYMAILBOX;
478 /* set buffer addresses */
479 mci.param.setmemorymailbox.command_mailbox_physaddr =
480 sc->mly_mmbox_busaddr + offsetof(struct mly_mmbox, mmm_command);
481 mci.param.setmemorymailbox.status_mailbox_physaddr =
482 sc->mly_mmbox_busaddr + offsetof(struct mly_mmbox, mmm_status);
483 mci.param.setmemorymailbox.health_buffer_physaddr =
484 sc->mly_mmbox_busaddr + offsetof(struct mly_mmbox, mmm_health);
486 /* set buffer sizes - abuse of data_size field is revolting */
487 sp = (u_int8_t *)&mci.data_size;
488 sp[0] = ((sizeof(union mly_command_packet) * MLY_MMBOX_COMMANDS) / 1024);
489 sp[1] = (sizeof(union mly_status_packet) * MLY_MMBOX_STATUS) / 1024;
490 mci.param.setmemorymailbox.health_buffer_size = sizeof(union mly_health_region) / 1024;
492 debug(1, "memory mailbox at %p (0x%llx/%d 0x%llx/%d 0x%llx/%d", sc->mly_mmbox,
493 mci.param.setmemorymailbox.command_mailbox_physaddr, sp[0],
494 mci.param.setmemorymailbox.status_mailbox_physaddr, sp[1],
495 mci.param.setmemorymailbox.health_buffer_physaddr,
496 mci.param.setmemorymailbox.health_buffer_size);
498 if ((error = mly_ioctl(sc, &mci, NULL, 0, &status, NULL, NULL)))
502 sc->mly_state |= MLY_STATE_MMBOX_ACTIVE;
503 debug(1, "memory mailbox active");
507 /********************************************************************************
508 * Flush all pending I/O from the controller.
511 mly_flush(struct mly_softc *sc)
513 struct mly_command_ioctl mci;
519 /* build the ioctl */
520 bzero(&mci, sizeof(mci));
521 mci.sub_ioctl = MDACIOCTL_FLUSHDEVICEDATA;
522 mci.param.deviceoperation.operation_device = MLY_OPDEVICE_PHYSICAL_CONTROLLER;
524 /* pass it off to the controller */
525 if ((error = mly_ioctl(sc, &mci, NULL, 0, &status, NULL, NULL)))
528 return((status == 0) ? 0 : EIO);
531 /********************************************************************************
532 * Perform an ioctl command.
534 * If (data) is not NULL, the command requires data transfer. If (*data) is NULL
535 * the command requires data transfer from the controller, and we will allocate
536 * a buffer for it. If (*data) is not NULL, the command requires data transfer
539 * XXX passing in the whole ioctl structure is ugly. Better ideas?
541 * XXX we don't even try to handle the case where datasize > 4k. We should.
544 mly_ioctl(struct mly_softc *sc, struct mly_command_ioctl *ioctl, void **data, size_t datasize,
545 u_int8_t *status, void *sense_buffer, size_t *sense_length)
547 struct mly_command *mc;
548 struct mly_command_ioctl *mci;
554 if (mly_alloc_command(sc, &mc)) {
559 /* copy the ioctl structure, but save some important fields and then fixup */
560 mci = &mc->mc_packet->ioctl;
561 ioctl->sense_buffer_address = mci->sense_buffer_address;
562 ioctl->maximum_sense_size = mci->maximum_sense_size;
564 mci->opcode = MDACMD_IOCTL;
565 mci->timeout.value = 30;
566 mci->timeout.scale = MLY_TIMEOUT_SECONDS;
568 /* handle the data buffer */
571 /* allocate data buffer */
572 if ((mc->mc_data = malloc(datasize, M_DEVBUF, M_NOWAIT)) == NULL) {
576 mc->mc_flags |= MLY_CMD_DATAIN;
579 mc->mc_flags |= MLY_CMD_DATAOUT;
581 mc->mc_length = datasize;
582 mc->mc_packet->generic.data_size = datasize;
585 /* run the command */
586 if ((error = mly_immediate_command(mc)))
589 /* clean up and return any data */
590 *status = mc->mc_status;
591 if ((mc->mc_sense > 0) && (sense_buffer != NULL)) {
592 bcopy(mc->mc_packet, sense_buffer, mc->mc_sense);
593 *sense_length = mc->mc_sense;
597 /* should we return a data pointer? */
598 if ((data != NULL) && (*data == NULL))
601 /* command completed OK */
606 /* do we need to free a data buffer we allocated? */
607 if (error && (mc->mc_data != NULL) && (*data == NULL))
608 free(mc->mc_data, M_DEVBUF);
609 mly_release_command(mc);
614 /********************************************************************************
615 * Fetch one event from the controller.
618 mly_fetch_event(struct mly_softc *sc)
620 struct mly_command *mc;
621 struct mly_command_ioctl *mci;
629 if (mly_alloc_command(sc, &mc))
630 return; /* we'll get retried the next time a command completes */
632 /* set up the data buffer */
633 if ((mc->mc_data = malloc(sizeof(struct mly_event), M_DEVBUF, M_NOWAIT)) == NULL) {
634 mly_release_command(mc);
635 return; /* we'll get retried the next time a command completes */
637 bzero(mc->mc_data, sizeof(struct mly_event));
638 mc->mc_length = sizeof(struct mly_event);
639 mc->mc_flags |= MLY_CMD_DATAIN;
640 mc->mc_complete = mly_complete_event;
643 * Get an event number to fetch. It's possible that we've raced with another
644 * context for the last event, in which case there will be no more events.
647 if (sc->mly_event_counter == sc->mly_event_waiting) {
648 mly_release_command(mc);
652 event = sc->mly_event_counter++;
658 * At this point we are committed to sending this request, as it
659 * will be the only one constructed for this particular event number.
661 mci = (struct mly_command_ioctl *)&mc->mc_packet->ioctl;
662 mci->opcode = MDACMD_IOCTL;
663 mci->data_size = sizeof(struct mly_event);
664 mci->addr.phys.lun = (event >> 16) & 0xff;
665 mci->addr.phys.target = (event >> 24) & 0xff;
666 mci->addr.phys.channel = 0;
667 mci->addr.phys.controller = 0;
668 mci->timeout.value = 30;
669 mci->timeout.scale = MLY_TIMEOUT_SECONDS;
670 mci->sub_ioctl = MDACIOCTL_GETEVENT;
671 mci->param.getevent.sequence_number_low = event & 0xffff;
673 debug(2, "fetch event %u", event);
676 * Use the ready queue to get this command dispatched.
678 mly_enqueue_ready(mc);
682 /********************************************************************************
683 * Handle the completion of an event poll.
685 * Note that we don't actually have to instigate another poll; the completion of
686 * this command will trigger that if there are any more events to poll for.
689 mly_complete_event(struct mly_command *mc)
691 struct mly_softc *sc = mc->mc_sc;
692 struct mly_event *me = (struct mly_event *)mc->mc_data;
697 * If the event was successfully fetched, process it.
699 if (mc->mc_status == SCSI_STATUS_OK) {
700 mly_process_event(sc, me);
703 mly_release_command(mc);
706 /********************************************************************************
707 * Process a controller event.
710 mly_process_event(struct mly_softc *sc, struct mly_event *me)
712 struct scsi_sense_data *ssd = (struct scsi_sense_data *)&me->sense[0];
714 int bus, target, event, class, action;
717 * Errors can be reported using vendor-unique sense data. In this case, the
718 * event code will be 0x1c (Request sense data present), the sense key will
719 * be 0x09 (vendor specific), the MSB of the ASC will be set, and the
720 * actual event code will be a 16-bit value comprised of the ASCQ (low byte)
721 * and low seven bits of the ASC (low seven bits of the high byte).
723 if ((me->code == 0x1c) &&
724 ((ssd->flags & SSD_KEY) == SSD_KEY_Vendor_Specific) &&
725 (ssd->add_sense_code & 0x80)) {
726 event = ((int)(ssd->add_sense_code & ~0x80) << 8) + ssd->add_sense_code_qual;
731 /* look up event, get codes */
732 fp = mly_describe_code(mly_table_event, event);
734 debug(2, "Event %d code 0x%x", me->sequence_number, me->code);
738 if (isupper(class) && bootverbose)
739 class = tolower(class);
741 /* get action code, text string */
746 * Print some information about the event.
748 * This code uses a table derived from the corresponding portion of the Linux
749 * driver, and thus the parser is very similar.
752 case 'p': /* error on physical device */
753 mly_printf(sc, "physical device %d:%d %s\n", me->channel, me->target, tp);
755 sc->mly_btl[me->channel][me->target].mb_flags |= MLY_BTL_RESCAN;
757 case 'l': /* error on logical unit */
758 case 'm': /* message about logical unit */
759 bus = MLY_LOGDEV_BUS(sc, me->lun);
760 target = MLY_LOGDEV_TARGET(me->lun);
761 mly_name_device(sc, bus, target);
762 mly_printf(sc, "logical device %d (%s) %s\n", me->lun, sc->mly_btl[bus][target].mb_name, tp);
764 sc->mly_btl[bus][target].mb_flags |= MLY_BTL_RESCAN;
767 case 's': /* report of sense data */
768 if (((ssd->flags & SSD_KEY) == SSD_KEY_NO_SENSE) ||
769 (((ssd->flags & SSD_KEY) == SSD_KEY_NOT_READY) &&
770 (ssd->add_sense_code == 0x04) &&
771 ((ssd->add_sense_code_qual == 0x01) || (ssd->add_sense_code_qual == 0x02))))
772 break; /* ignore NO_SENSE or NOT_READY in one case */
774 mly_printf(sc, "physical device %d:%d %s\n", me->channel, me->target, tp);
775 mly_printf(sc, " sense key %d asc %02x ascq %02x\n",
776 ssd->flags & SSD_KEY, ssd->add_sense_code, ssd->add_sense_code_qual);
777 mly_printf(sc, " info %4D csi %4D\n", ssd->info, "", ssd->cmd_spec_info, "");
779 sc->mly_btl[me->channel][me->target].mb_flags |= MLY_BTL_RESCAN;
782 mly_printf(sc, tp, me->target, me->lun);
785 mly_printf(sc, "controller %s\n", tp);
788 mly_printf(sc, "%s - %d\n", tp, me->code);
790 default: /* probably a 'noisy' event being ignored */
795 /********************************************************************************
796 * Perform periodic activities.
799 mly_periodic(void *data)
801 struct mly_softc *sc = (struct mly_softc *)data;
802 int nchn, bus, target;
809 nchn = sc->mly_controllerinfo->physical_channels_present +
810 sc->mly_controllerinfo->virtual_channels_present;
811 for (bus = 0; bus < nchn; bus++) {
812 for (target = 0; target < MLY_MAX_TARGETS; target++) {
814 /* ignore the controller in this scan */
815 if (target == sc->mly_controllerparam->initiator_id)
818 /* perform device rescan? */
819 if (sc->mly_btl[bus][target].mb_flags & MLY_BTL_RESCAN)
820 mly_rescan_btl(sc, bus, target);
824 sc->mly_periodic = timeout(mly_periodic, sc, hz);
827 /********************************************************************************
828 ********************************************************************************
830 ********************************************************************************
831 ********************************************************************************/
833 /********************************************************************************
834 * Run a command and wait for it to complete.
838 mly_immediate_command(struct mly_command *mc)
840 struct mly_softc *sc = mc->mc_sc;
845 /* spinning at splcam is ugly, but we're only used during controller init */
847 if ((error = mly_start(mc)))
850 if (sc->mly_state & MLY_STATE_INTERRUPTS_ON) {
851 /* sleep on the command */
852 while(!(mc->mc_flags & MLY_CMD_COMPLETE)) {
853 tsleep(mc, 0, "mlywait", 0);
856 /* spin and collect status while we do */
857 while(!(mc->mc_flags & MLY_CMD_COMPLETE)) {
865 /********************************************************************************
866 * Start as much queued I/O as possible on the controller
869 mly_startio(struct mly_softc *sc)
871 struct mly_command *mc;
877 /* try for a ready command */
878 mc = mly_dequeue_ready(sc);
880 /* try to build a command from a queued ccb */
882 mly_cam_command(sc, &mc);
884 /* no command == nothing to do */
888 /* try to post the command */
890 /* controller busy, or no resources - defer for later */
891 mly_requeue_ready(mc);
897 /********************************************************************************
898 * Deliver a command to the controller; allocate controller resources at the
902 mly_start(struct mly_command *mc)
904 struct mly_softc *sc = mc->mc_sc;
905 union mly_command_packet *pkt;
911 * Set the command up for delivery to the controller.
914 mc->mc_packet->generic.command_id = mc->mc_slot;
919 * Do we have to use the hardware mailbox?
921 if (!(sc->mly_state & MLY_STATE_MMBOX_ACTIVE)) {
923 * Check to see if the controller is ready for us.
925 if (MLY_IDBR_TRUE(sc, MLY_HM_CMDSENT)) {
929 mc->mc_flags |= MLY_CMD_BUSY;
932 * It's ready, send the command.
934 MLY_SET_MBOX(sc, sc->mly_command_mailbox, &mc->mc_packetphys);
935 MLY_SET_REG(sc, sc->mly_idbr, MLY_HM_CMDSENT);
937 } else { /* use memory-mailbox mode */
939 pkt = &sc->mly_mmbox->mmm_command[sc->mly_mmbox_command_index];
941 /* check to see if the next index is free yet */
942 if (pkt->mmbox.flag != 0) {
946 mc->mc_flags |= MLY_CMD_BUSY;
948 /* copy in new command */
949 bcopy(mc->mc_packet->mmbox.data, pkt->mmbox.data, sizeof(pkt->mmbox.data));
950 /* barrier to ensure completion of previous write before we write the flag */
951 bus_space_barrier(NULL, NULL, 0, 0, BUS_SPACE_BARRIER_WRITE); /* tag/handle? */
953 pkt->mmbox.flag = mc->mc_packet->mmbox.flag;
954 /* barrier to ensure completion of previous write before we notify the controller */
955 bus_space_barrier(NULL, NULL, 0, 0, BUS_SPACE_BARRIER_WRITE); /* tag/handle */
957 /* signal controller, update index */
958 MLY_SET_REG(sc, sc->mly_idbr, MLY_AM_CMDSENT);
959 sc->mly_mmbox_command_index = (sc->mly_mmbox_command_index + 1) % MLY_MMBOX_COMMANDS;
962 mly_enqueue_busy(mc);
967 /********************************************************************************
968 * Pick up command status from the controller, schedule a completion event
971 mly_done(struct mly_softc *sc)
973 struct mly_command *mc;
974 union mly_status_packet *sp;
981 /* pick up hardware-mailbox commands */
982 if (MLY_ODBR_TRUE(sc, MLY_HM_STSREADY)) {
983 slot = MLY_GET_REG2(sc, sc->mly_status_mailbox);
984 if (slot < MLY_SLOT_MAX) {
985 mc = &sc->mly_command[slot - MLY_SLOT_START];
986 mc->mc_status = MLY_GET_REG(sc, sc->mly_status_mailbox + 2);
987 mc->mc_sense = MLY_GET_REG(sc, sc->mly_status_mailbox + 3);
988 mc->mc_resid = MLY_GET_REG4(sc, sc->mly_status_mailbox + 4);
990 mc->mc_flags &= ~MLY_CMD_BUSY;
991 mly_enqueue_complete(mc);
994 /* slot 0xffff may mean "extremely bogus command" */
995 mly_printf(sc, "got HM completion for illegal slot %u\n", slot);
997 /* unconditionally acknowledge status */
998 MLY_SET_REG(sc, sc->mly_odbr, MLY_HM_STSREADY);
999 MLY_SET_REG(sc, sc->mly_idbr, MLY_HM_STSACK);
1002 /* pick up memory-mailbox commands */
1003 if (MLY_ODBR_TRUE(sc, MLY_AM_STSREADY)) {
1005 sp = &sc->mly_mmbox->mmm_status[sc->mly_mmbox_status_index];
1007 /* check for more status */
1008 if (sp->mmbox.flag == 0)
1011 /* get slot number */
1012 slot = sp->status.command_id;
1013 if (slot < MLY_SLOT_MAX) {
1014 mc = &sc->mly_command[slot - MLY_SLOT_START];
1015 mc->mc_status = sp->status.status;
1016 mc->mc_sense = sp->status.sense_length;
1017 mc->mc_resid = sp->status.residue;
1018 mly_remove_busy(mc);
1019 mc->mc_flags &= ~MLY_CMD_BUSY;
1020 mly_enqueue_complete(mc);
1023 /* slot 0xffff may mean "extremely bogus command" */
1024 mly_printf(sc, "got AM completion for illegal slot %u at %d\n",
1025 slot, sc->mly_mmbox_status_index);
1028 /* clear and move to next index */
1030 sc->mly_mmbox_status_index = (sc->mly_mmbox_status_index + 1) % MLY_MMBOX_STATUS;
1032 /* acknowledge that we have collected status value(s) */
1033 MLY_SET_REG(sc, sc->mly_odbr, MLY_AM_STSREADY);
1038 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005
1039 if (sc->mly_state & MLY_STATE_INTERRUPTS_ON)
1040 taskqueue_enqueue(taskqueue_swi, &sc->mly_task_complete);
1043 mly_complete(sc, 0);
1047 /********************************************************************************
1048 * Process completed commands
1051 mly_complete(void *context, int pending)
1053 struct mly_softc *sc = (struct mly_softc *)context;
1054 struct mly_command *mc;
1055 void (* mc_complete)(struct mly_command *mc);
1061 * Spin pulling commands off the completed queue and processing them.
1063 while ((mc = mly_dequeue_complete(sc)) != NULL) {
1066 * Free controller resources, mark command complete.
1068 * Note that as soon as we mark the command complete, it may be freed
1069 * out from under us, so we need to save the mc_complete field in
1070 * order to later avoid dereferencing mc. (We would not expect to
1071 * have a polling/sleeping consumer with mc_complete != NULL).
1073 mly_unmap_command(mc);
1074 mc_complete = mc->mc_complete;
1075 mc->mc_flags |= MLY_CMD_COMPLETE;
1078 * Call completion handler or wake up sleeping consumer.
1080 if (mc_complete != NULL) {
1088 * We may have freed up controller resources which would allow us
1089 * to push more commands onto the controller, so we check here.
1094 * The controller may have updated the health status information,
1095 * so check for it here.
1097 * Note that we only check for health status after a completed command. It
1098 * might be wise to ping the controller occasionally if it's been idle for
1099 * a while just to check up on it. While a filesystem is mounted, or I/O is
1100 * active this isn't really an issue.
1102 if (sc->mly_mmbox->mmm_health.status.change_counter != sc->mly_event_change) {
1103 sc->mly_event_change = sc->mly_mmbox->mmm_health.status.change_counter;
1104 debug(1, "event change %d, event status update, %d -> %d", sc->mly_event_change,
1105 sc->mly_event_waiting, sc->mly_mmbox->mmm_health.status.next_event);
1106 sc->mly_event_waiting = sc->mly_mmbox->mmm_health.status.next_event;
1108 /* wake up anyone that might be interested in this */
1109 wakeup(&sc->mly_event_change);
1111 if (sc->mly_event_counter != sc->mly_event_waiting)
1112 mly_fetch_event(sc);
1115 /********************************************************************************
1116 ********************************************************************************
1117 Command Buffer Management
1118 ********************************************************************************
1119 ********************************************************************************/
1121 /********************************************************************************
1122 * Allocate a command.
1125 mly_alloc_command(struct mly_softc *sc, struct mly_command **mcp)
1127 struct mly_command *mc;
1131 if ((mc = mly_dequeue_free(sc)) == NULL)
1138 /********************************************************************************
1139 * Release a command back to the freelist.
1142 mly_release_command(struct mly_command *mc)
1147 * Fill in parts of the command that may cause confusion if
1148 * a consumer doesn't when we are later allocated.
1152 mc->mc_complete = NULL;
1153 mc->mc_private = NULL;
1156 * By default, we set up to overwrite the command packet with
1157 * sense information.
1159 mc->mc_packet->generic.sense_buffer_address = mc->mc_packetphys;
1160 mc->mc_packet->generic.maximum_sense_size = sizeof(union mly_command_packet);
1162 mly_enqueue_free(mc);
1165 /********************************************************************************
1166 * Map helper for command allocation.
1169 mly_alloc_commands_map(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1171 struct mly_softc *sc = (struct mly_softc *)arg
1175 sc->mly_packetphys = segs[0].ds_addr;
1178 /********************************************************************************
1179 * Allocate and initialise command and packet structures.
1182 mly_alloc_commands(struct mly_softc *sc)
1184 struct mly_command *mc;
1188 * Allocate enough space for all the command packets in one chunk and
1189 * map them permanently into controller-visible space.
1191 if (bus_dmamem_alloc(sc->mly_packet_dmat, (void **)&sc->mly_packet,
1192 BUS_DMA_NOWAIT, &sc->mly_packetmap)) {
1195 bus_dmamap_load(sc->mly_packet_dmat, sc->mly_packetmap, sc->mly_packet,
1196 MLY_MAXCOMMANDS * sizeof(union mly_command_packet),
1197 mly_alloc_commands_map, sc, 0);
1199 for (i = 0; i < MLY_MAXCOMMANDS; i++) {
1200 mc = &sc->mly_command[i];
1201 bzero(mc, sizeof(*mc));
1203 mc->mc_slot = MLY_SLOT_START + i;
1204 mc->mc_packet = sc->mly_packet + i;
1205 mc->mc_packetphys = sc->mly_packetphys + (i * sizeof(union mly_command_packet));
1206 if (!bus_dmamap_create(sc->mly_buffer_dmat, 0, &mc->mc_datamap))
1207 mly_release_command(mc);
1212 /********************************************************************************
1213 * Command-mapping helper function - populate this command's s/g table
1214 * with the s/g entries for its data.
1217 mly_map_command_sg(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1219 struct mly_command *mc = (struct mly_command *)arg;
1220 struct mly_softc *sc = mc->mc_sc;
1221 struct mly_command_generic *gen = &(mc->mc_packet->generic);
1222 struct mly_sg_entry *sg;
1227 /* can we use the transfer structure directly? */
1229 sg = &gen->transfer.direct.sg[0];
1230 gen->command_control.extended_sg_table = 0;
1232 tabofs = ((mc->mc_slot - MLY_SLOT_START) * MLY_MAXSGENTRIES);
1233 sg = sc->mly_sg_table + tabofs;
1234 gen->transfer.indirect.entries[0] = nseg;
1235 gen->transfer.indirect.table_physaddr[0] = sc->mly_sg_busaddr + (tabofs * sizeof(struct mly_sg_entry));
1236 gen->command_control.extended_sg_table = 1;
1239 /* copy the s/g table */
1240 for (i = 0; i < nseg; i++) {
1241 sg[i].physaddr = segs[i].ds_addr;
1242 sg[i].length = segs[i].ds_len;
1248 /********************************************************************************
1249 * Command-mapping helper function - save the cdb's physical address.
1251 * We don't support 'large' SCSI commands at this time, so this is unused.
1254 mly_map_command_cdb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1256 struct mly_command *mc = (struct mly_command *)arg;
1260 /* XXX can we safely assume that a CDB will never cross a page boundary? */
1261 if ((segs[0].ds_addr % PAGE_SIZE) >
1262 ((segs[0].ds_addr + mc->mc_packet->scsi_large.cdb_length) % PAGE_SIZE))
1263 panic("cdb crosses page boundary");
1265 /* fix up fields in the command packet */
1266 mc->mc_packet->scsi_large.cdb_physaddr = segs[0].ds_addr;
1270 /********************************************************************************
1271 * Map a command into controller-visible space
1274 mly_map_command(struct mly_command *mc)
1276 struct mly_softc *sc = mc->mc_sc;
1280 /* don't map more than once */
1281 if (mc->mc_flags & MLY_CMD_MAPPED)
1284 /* does the command have a data buffer? */
1285 if (mc->mc_data != NULL)
1286 bus_dmamap_load(sc->mly_buffer_dmat, mc->mc_datamap, mc->mc_data, mc->mc_length,
1287 mly_map_command_sg, mc, 0);
1289 if (mc->mc_flags & MLY_CMD_DATAIN)
1290 bus_dmamap_sync(sc->mly_buffer_dmat, mc->mc_datamap, BUS_DMASYNC_PREREAD);
1291 if (mc->mc_flags & MLY_CMD_DATAOUT)
1292 bus_dmamap_sync(sc->mly_buffer_dmat, mc->mc_datamap, BUS_DMASYNC_PREWRITE);
1294 mc->mc_flags |= MLY_CMD_MAPPED;
1297 /********************************************************************************
1298 * Unmap a command from controller-visible space
1301 mly_unmap_command(struct mly_command *mc)
1303 struct mly_softc *sc = mc->mc_sc;
1307 if (!(mc->mc_flags & MLY_CMD_MAPPED))
1310 if (mc->mc_flags & MLY_CMD_DATAIN)
1311 bus_dmamap_sync(sc->mly_buffer_dmat, mc->mc_datamap, BUS_DMASYNC_POSTREAD);
1312 if (mc->mc_flags & MLY_CMD_DATAOUT)
1313 bus_dmamap_sync(sc->mly_buffer_dmat, mc->mc_datamap, BUS_DMASYNC_POSTWRITE);
1315 /* does the command have a data buffer? */
1316 if (mc->mc_data != NULL)
1317 bus_dmamap_unload(sc->mly_buffer_dmat, mc->mc_datamap);
1319 mc->mc_flags &= ~MLY_CMD_MAPPED;
1322 /********************************************************************************
1323 ********************************************************************************
1325 ********************************************************************************
1326 ********************************************************************************/
1328 /********************************************************************************
1329 * Handshake with the firmware while the card is being initialised.
1332 mly_fwhandshake(struct mly_softc *sc)
1334 u_int8_t error, param0, param1;
1339 /* set HM_STSACK and let the firmware initialise */
1340 MLY_SET_REG(sc, sc->mly_idbr, MLY_HM_STSACK);
1341 DELAY(1000); /* too short? */
1343 /* if HM_STSACK is still true, the controller is initialising */
1344 if (!MLY_IDBR_TRUE(sc, MLY_HM_STSACK))
1346 mly_printf(sc, "controller initialisation started\n");
1348 /* spin waiting for initialisation to finish, or for a message to be delivered */
1349 while (MLY_IDBR_TRUE(sc, MLY_HM_STSACK)) {
1350 /* check for a message */
1351 if (MLY_ERROR_VALID(sc)) {
1352 error = MLY_GET_REG(sc, sc->mly_error_status) & ~MLY_MSG_EMPTY;
1353 param0 = MLY_GET_REG(sc, sc->mly_command_mailbox);
1354 param1 = MLY_GET_REG(sc, sc->mly_command_mailbox + 1);
1357 case MLY_MSG_SPINUP:
1359 mly_printf(sc, "drive spinup in progress\n");
1360 spinup = 1; /* only print this once (should print drive being spun?) */
1363 case MLY_MSG_RACE_RECOVERY_FAIL:
1364 mly_printf(sc, "mirror race recovery failed, one or more drives offline\n");
1366 case MLY_MSG_RACE_IN_PROGRESS:
1367 mly_printf(sc, "mirror race recovery in progress\n");
1369 case MLY_MSG_RACE_ON_CRITICAL:
1370 mly_printf(sc, "mirror race recovery on a critical drive\n");
1372 case MLY_MSG_PARITY_ERROR:
1373 mly_printf(sc, "FATAL MEMORY PARITY ERROR\n");
1376 mly_printf(sc, "unknown initialisation code 0x%x\n", error);
1383 /********************************************************************************
1384 ********************************************************************************
1385 Debugging and Diagnostics
1386 ********************************************************************************
1387 ********************************************************************************/
1389 /********************************************************************************
1390 * Print some information about the controller.
1393 mly_describe_controller(struct mly_softc *sc)
1395 struct mly_ioctl_getcontrollerinfo *mi = sc->mly_controllerinfo;
1397 mly_printf(sc, "%16s, %d channel%s, firmware %d.%02d-%d-%02d (%02d%02d%02d%02d), %dMB RAM\n",
1398 mi->controller_name, mi->physical_channels_present, (mi->physical_channels_present) > 1 ? "s" : "",
1399 mi->fw_major, mi->fw_minor, mi->fw_turn, mi->fw_build, /* XXX turn encoding? */
1400 mi->fw_century, mi->fw_year, mi->fw_month, mi->fw_day,
1404 mly_printf(sc, "%s %s (%x), %dMHz %d-bit %.16s\n",
1405 mly_describe_code(mly_table_oemname, mi->oem_information),
1406 mly_describe_code(mly_table_controllertype, mi->controller_type), mi->controller_type,
1407 mi->interface_speed, mi->interface_width, mi->interface_name);
1408 mly_printf(sc, "%dMB %dMHz %d-bit %s%s%s, cache %dMB\n",
1409 mi->memory_size, mi->memory_speed, mi->memory_width,
1410 mly_describe_code(mly_table_memorytype, mi->memory_type),
1411 mi->memory_parity ? "+parity": "",mi->memory_ecc ? "+ECC": "",
1413 mly_printf(sc, "CPU: %s @ %dMHZ\n",
1414 mly_describe_code(mly_table_cputype, mi->cpu[0].type), mi->cpu[0].speed);
1415 if (mi->l2cache_size != 0)
1416 mly_printf(sc, "%dKB L2 cache\n", mi->l2cache_size);
1417 if (mi->exmemory_size != 0)
1418 mly_printf(sc, "%dMB %dMHz %d-bit private %s%s%s\n",
1419 mi->exmemory_size, mi->exmemory_speed, mi->exmemory_width,
1420 mly_describe_code(mly_table_memorytype, mi->exmemory_type),
1421 mi->exmemory_parity ? "+parity": "",mi->exmemory_ecc ? "+ECC": "");
1422 mly_printf(sc, "battery backup %s\n", mi->bbu_present ? "present" : "not installed");
1423 mly_printf(sc, "maximum data transfer %d blocks, maximum sg entries/command %d\n",
1424 mi->maximum_block_count, mi->maximum_sg_entries);
1425 mly_printf(sc, "logical devices present/critical/offline %d/%d/%d\n",
1426 mi->logical_devices_present, mi->logical_devices_critical, mi->logical_devices_offline);
1427 mly_printf(sc, "physical devices present %d\n",
1428 mi->physical_devices_present);
1429 mly_printf(sc, "physical disks present/offline %d/%d\n",
1430 mi->physical_disks_present, mi->physical_disks_offline);
1431 mly_printf(sc, "%d physical channel%s, %d virtual channel%s of %d possible\n",
1432 mi->physical_channels_present, mi->physical_channels_present == 1 ? "" : "s",
1433 mi->virtual_channels_present, mi->virtual_channels_present == 1 ? "" : "s",
1434 mi->virtual_channels_possible);
1435 mly_printf(sc, "%d parallel commands supported\n", mi->maximum_parallel_commands);
1436 mly_printf(sc, "%dMB flash ROM, %d of %d maximum cycles\n",
1437 mi->flash_size, mi->flash_age, mi->flash_maximum_age);
1442 /********************************************************************************
1443 * Print some controller state
1446 mly_printstate(struct mly_softc *sc)
1448 mly_printf(sc, "IDBR %02x ODBR %02x ERROR %02x (%x %x %x)\n",
1449 MLY_GET_REG(sc, sc->mly_idbr),
1450 MLY_GET_REG(sc, sc->mly_odbr),
1451 MLY_GET_REG(sc, sc->mly_error_status),
1454 sc->mly_error_status);
1455 mly_printf(sc, "IMASK %02x ISTATUS %02x\n",
1456 MLY_GET_REG(sc, sc->mly_interrupt_mask),
1457 MLY_GET_REG(sc, sc->mly_interrupt_status));
1458 mly_printf(sc, "COMMAND %02x %02x %02x %02x %02x %02x %02x %02x\n",
1459 MLY_GET_REG(sc, sc->mly_command_mailbox),
1460 MLY_GET_REG(sc, sc->mly_command_mailbox + 1),
1461 MLY_GET_REG(sc, sc->mly_command_mailbox + 2),
1462 MLY_GET_REG(sc, sc->mly_command_mailbox + 3),
1463 MLY_GET_REG(sc, sc->mly_command_mailbox + 4),
1464 MLY_GET_REG(sc, sc->mly_command_mailbox + 5),
1465 MLY_GET_REG(sc, sc->mly_command_mailbox + 6),
1466 MLY_GET_REG(sc, sc->mly_command_mailbox + 7));
1467 mly_printf(sc, "STATUS %02x %02x %02x %02x %02x %02x %02x %02x\n",
1468 MLY_GET_REG(sc, sc->mly_status_mailbox),
1469 MLY_GET_REG(sc, sc->mly_status_mailbox + 1),
1470 MLY_GET_REG(sc, sc->mly_status_mailbox + 2),
1471 MLY_GET_REG(sc, sc->mly_status_mailbox + 3),
1472 MLY_GET_REG(sc, sc->mly_status_mailbox + 4),
1473 MLY_GET_REG(sc, sc->mly_status_mailbox + 5),
1474 MLY_GET_REG(sc, sc->mly_status_mailbox + 6),
1475 MLY_GET_REG(sc, sc->mly_status_mailbox + 7));
1476 mly_printf(sc, " %04x %08x\n",
1477 MLY_GET_REG2(sc, sc->mly_status_mailbox),
1478 MLY_GET_REG4(sc, sc->mly_status_mailbox + 4));
1481 struct mly_softc *mly_softc0 = NULL;
1483 mly_printstate0(void)
1485 if (mly_softc0 != NULL)
1486 mly_printstate(mly_softc0);
1489 /********************************************************************************
1493 mly_print_command(struct mly_command *mc)
1495 struct mly_softc *sc = mc->mc_sc;
1497 mly_printf(sc, "COMMAND @ %p\n", mc);
1498 mly_printf(sc, " slot %d\n", mc->mc_slot);
1499 mly_printf(sc, " status 0x%x\n", mc->mc_status);
1500 mly_printf(sc, " sense len %d\n", mc->mc_sense);
1501 mly_printf(sc, " resid %d\n", mc->mc_resid);
1502 mly_printf(sc, " packet %p/0x%llx\n", mc->mc_packet, mc->mc_packetphys);
1503 if (mc->mc_packet != NULL)
1504 mly_print_packet(mc);
1505 mly_printf(sc, " data %p/%d\n", mc->mc_data, mc->mc_length);
1506 mly_printf(sc, " flags %b\n", mc->mc_flags, "\20\1busy\2complete\3slotted\4mapped\5datain\6dataout\n");
1507 mly_printf(sc, " complete %p\n", mc->mc_complete);
1508 mly_printf(sc, " private %p\n", mc->mc_private);
1511 /********************************************************************************
1512 * Print a command packet
1515 mly_print_packet(struct mly_command *mc)
1517 struct mly_softc *sc = mc->mc_sc;
1518 struct mly_command_generic *ge = (struct mly_command_generic *)mc->mc_packet;
1519 struct mly_command_scsi_small *ss = (struct mly_command_scsi_small *)mc->mc_packet;
1520 struct mly_command_scsi_large *sl = (struct mly_command_scsi_large *)mc->mc_packet;
1521 struct mly_command_ioctl *io = (struct mly_command_ioctl *)mc->mc_packet;
1524 mly_printf(sc, " command_id %d\n", ge->command_id);
1525 mly_printf(sc, " opcode %d\n", ge->opcode);
1526 mly_printf(sc, " command_control fua %d dpo %d est %d dd %s nas %d ddis %d\n",
1527 ge->command_control.force_unit_access,
1528 ge->command_control.disable_page_out,
1529 ge->command_control.extended_sg_table,
1530 (ge->command_control.data_direction == MLY_CCB_WRITE) ? "WRITE" : "READ",
1531 ge->command_control.no_auto_sense,
1532 ge->command_control.disable_disconnect);
1533 mly_printf(sc, " data_size %d\n", ge->data_size);
1534 mly_printf(sc, " sense_buffer_address 0x%llx\n", ge->sense_buffer_address);
1535 mly_printf(sc, " lun %d\n", ge->addr.phys.lun);
1536 mly_printf(sc, " target %d\n", ge->addr.phys.target);
1537 mly_printf(sc, " channel %d\n", ge->addr.phys.channel);
1538 mly_printf(sc, " logical device %d\n", ge->addr.log.logdev);
1539 mly_printf(sc, " controller %d\n", ge->addr.phys.controller);
1540 mly_printf(sc, " timeout %d %s\n",
1542 (ge->timeout.scale == MLY_TIMEOUT_SECONDS) ? "seconds" :
1543 ((ge->timeout.scale == MLY_TIMEOUT_MINUTES) ? "minutes" : "hours"));
1544 mly_printf(sc, " maximum_sense_size %d\n", ge->maximum_sense_size);
1545 switch(ge->opcode) {
1548 mly_printf(sc, " cdb length %d\n", ss->cdb_length);
1549 mly_printf(sc, " cdb %*D\n", ss->cdb_length, ss->cdb, " ");
1553 case MDACMD_SCSILCPT:
1554 mly_printf(sc, " cdb length %d\n", sl->cdb_length);
1555 mly_printf(sc, " cdb 0x%llx\n", sl->cdb_physaddr);
1559 mly_printf(sc, " sub_ioctl 0x%x\n", io->sub_ioctl);
1560 switch(io->sub_ioctl) {
1561 case MDACIOCTL_SETMEMORYMAILBOX:
1562 mly_printf(sc, " health_buffer_size %d\n",
1563 io->param.setmemorymailbox.health_buffer_size);
1564 mly_printf(sc, " health_buffer_phys 0x%llx\n",
1565 io->param.setmemorymailbox.health_buffer_physaddr);
1566 mly_printf(sc, " command_mailbox 0x%llx\n",
1567 io->param.setmemorymailbox.command_mailbox_physaddr);
1568 mly_printf(sc, " status_mailbox 0x%llx\n",
1569 io->param.setmemorymailbox.status_mailbox_physaddr);
1573 case MDACIOCTL_SETREALTIMECLOCK:
1574 case MDACIOCTL_GETHEALTHSTATUS:
1575 case MDACIOCTL_GETCONTROLLERINFO:
1576 case MDACIOCTL_GETLOGDEVINFOVALID:
1577 case MDACIOCTL_GETPHYSDEVINFOVALID:
1578 case MDACIOCTL_GETPHYSDEVSTATISTICS:
1579 case MDACIOCTL_GETLOGDEVSTATISTICS:
1580 case MDACIOCTL_GETCONTROLLERSTATISTICS:
1581 case MDACIOCTL_GETBDT_FOR_SYSDRIVE:
1582 case MDACIOCTL_CREATENEWCONF:
1583 case MDACIOCTL_ADDNEWCONF:
1584 case MDACIOCTL_GETDEVCONFINFO:
1585 case MDACIOCTL_GETFREESPACELIST:
1586 case MDACIOCTL_MORE:
1587 case MDACIOCTL_SETPHYSDEVPARAMETER:
1588 case MDACIOCTL_GETPHYSDEVPARAMETER:
1589 case MDACIOCTL_GETLOGDEVPARAMETER:
1590 case MDACIOCTL_SETLOGDEVPARAMETER:
1591 mly_printf(sc, " param %10D\n", io->param.data.param, " ");
1595 case MDACIOCTL_GETEVENT:
1596 mly_printf(sc, " event %d\n",
1597 io->param.getevent.sequence_number_low + ((u_int32_t)io->addr.log.logdev << 16));
1601 case MDACIOCTL_SETRAIDDEVSTATE:
1602 mly_printf(sc, " state %d\n", io->param.setraiddevstate.state);
1606 case MDACIOCTL_XLATEPHYSDEVTORAIDDEV:
1607 mly_printf(sc, " raid_device %d\n", io->param.xlatephysdevtoraiddev.raid_device);
1608 mly_printf(sc, " controller %d\n", io->param.xlatephysdevtoraiddev.controller);
1609 mly_printf(sc, " channel %d\n", io->param.xlatephysdevtoraiddev.channel);
1610 mly_printf(sc, " target %d\n", io->param.xlatephysdevtoraiddev.target);
1611 mly_printf(sc, " lun %d\n", io->param.xlatephysdevtoraiddev.lun);
1615 case MDACIOCTL_GETGROUPCONFINFO:
1616 mly_printf(sc, " group %d\n", io->param.getgroupconfinfo.group);
1620 case MDACIOCTL_GET_SUBSYSTEM_DATA:
1621 case MDACIOCTL_SET_SUBSYSTEM_DATA:
1622 case MDACIOCTL_STARTDISOCVERY:
1623 case MDACIOCTL_INITPHYSDEVSTART:
1624 case MDACIOCTL_INITPHYSDEVSTOP:
1625 case MDACIOCTL_INITRAIDDEVSTART:
1626 case MDACIOCTL_INITRAIDDEVSTOP:
1627 case MDACIOCTL_REBUILDRAIDDEVSTART:
1628 case MDACIOCTL_REBUILDRAIDDEVSTOP:
1629 case MDACIOCTL_MAKECONSISTENTDATASTART:
1630 case MDACIOCTL_MAKECONSISTENTDATASTOP:
1631 case MDACIOCTL_CONSISTENCYCHECKSTART:
1632 case MDACIOCTL_CONSISTENCYCHECKSTOP:
1633 case MDACIOCTL_RESETDEVICE:
1634 case MDACIOCTL_FLUSHDEVICEDATA:
1635 case MDACIOCTL_PAUSEDEVICE:
1636 case MDACIOCTL_UNPAUSEDEVICE:
1637 case MDACIOCTL_LOCATEDEVICE:
1638 case MDACIOCTL_SETMASTERSLAVEMODE:
1639 case MDACIOCTL_DELETERAIDDEV:
1640 case MDACIOCTL_REPLACEINTERNALDEV:
1641 case MDACIOCTL_CLEARCONF:
1642 case MDACIOCTL_GETCONTROLLERPARAMETER:
1643 case MDACIOCTL_SETCONTRLLERPARAMETER:
1644 case MDACIOCTL_CLEARCONFSUSPMODE:
1645 case MDACIOCTL_STOREIMAGE:
1646 case MDACIOCTL_READIMAGE:
1647 case MDACIOCTL_FLASHIMAGES:
1648 case MDACIOCTL_RENAMERAIDDEV:
1649 default: /* no idea what to print */
1655 case MDACMD_IOCTLCHECK:
1656 case MDACMD_MEMCOPY:
1659 break; /* print nothing */
1662 if (ge->command_control.extended_sg_table) {
1663 mly_printf(sc, " sg table 0x%llx/%d\n",
1664 ge->transfer.indirect.table_physaddr[0], ge->transfer.indirect.entries[0]);
1666 mly_printf(sc, " 0000 0x%llx/%lld\n",
1667 ge->transfer.direct.sg[0].physaddr, ge->transfer.direct.sg[0].length);
1668 mly_printf(sc, " 0001 0x%llx/%lld\n",
1669 ge->transfer.direct.sg[1].physaddr, ge->transfer.direct.sg[1].length);
1674 /********************************************************************************
1675 * Panic in a slightly informative fashion
1678 mly_panic(struct mly_softc *sc, char *reason)
1685 /********************************************************************************
1686 * Print queue statistics, callable from DDB.
1689 mly_print_controller(int controller)
1691 struct mly_softc *sc;
1693 if ((sc = devclass_get_softc(devclass_find("mly"), controller)) == NULL) {
1694 printf("mly: controller %d invalid\n", controller);
1696 device_printf(sc->mly_dev, "queue curr max\n");
1697 device_printf(sc->mly_dev, "free %04d/%04d\n",
1698 sc->mly_qstat[MLYQ_FREE].q_length, sc->mly_qstat[MLYQ_FREE].q_max);
1699 device_printf(sc->mly_dev, "ready %04d/%04d\n",
1700 sc->mly_qstat[MLYQ_READY].q_length, sc->mly_qstat[MLYQ_READY].q_max);
1701 device_printf(sc->mly_dev, "busy %04d/%04d\n",
1702 sc->mly_qstat[MLYQ_BUSY].q_length, sc->mly_qstat[MLYQ_BUSY].q_max);
1703 device_printf(sc->mly_dev, "complete %04d/%04d\n",
1704 sc->mly_qstat[MLYQ_COMPLETE].q_length, sc->mly_qstat[MLYQ_COMPLETE].q_max);
1709 /********************************************************************************
1710 ********************************************************************************
1711 Control device interface
1712 ********************************************************************************
1713 ********************************************************************************/
1715 /********************************************************************************
1716 * Accept an open operation on the control device.
1719 mly_user_open(dev_t dev, int flags, int fmt, d_thread_t *td)
1721 int unit = minor(dev);
1722 struct mly_softc *sc = devclass_get_softc(devclass_find("mly"), unit);
1724 sc->mly_state |= MLY_STATE_OPEN;
1728 /********************************************************************************
1729 * Accept the last close on the control device.
1732 mly_user_close(dev_t dev, int flags, int fmt, d_thread_t *td)
1734 int unit = minor(dev);
1735 struct mly_softc *sc = devclass_get_softc(devclass_find("mly"), unit);
1737 sc->mly_state &= ~MLY_STATE_OPEN;
1741 /********************************************************************************
1742 * Handle controller-specific control operations.
1745 mly_user_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *td)
1747 struct mly_softc *sc = (struct mly_softc *)dev->si_drv1;
1748 struct mly_user_command *uc = (struct mly_user_command *)addr;
1749 struct mly_user_health *uh = (struct mly_user_health *)addr;
1753 return(mly_user_command(sc, uc));
1755 return(mly_user_health(sc, uh));
1761 /********************************************************************************
1762 * Execute a command passed in from userspace.
1764 * The control structure contains the actual command for the controller, as well
1765 * as the user-space data pointer and data size, and an optional sense buffer
1766 * size/pointer. On completion, the data size is adjusted to the command
1767 * residual, and the sense buffer size to the size of the returned sense data.
1771 mly_user_command(struct mly_softc *sc, struct mly_user_command *uc)
1773 struct mly_command *mc;
1776 /* allocate a command */
1777 if (mly_alloc_command(sc, &mc)) {
1779 goto out; /* XXX Linux version will wait for a command */
1782 /* handle data size/direction */
1783 mc->mc_length = (uc->DataTransferLength >= 0) ? uc->DataTransferLength : -uc->DataTransferLength;
1784 if (mc->mc_length > 0) {
1785 if ((mc->mc_data = malloc(mc->mc_length, M_DEVBUF, M_NOWAIT)) == NULL) {
1790 if (uc->DataTransferLength > 0) {
1791 mc->mc_flags |= MLY_CMD_DATAIN;
1792 bzero(mc->mc_data, mc->mc_length);
1794 if (uc->DataTransferLength < 0) {
1795 mc->mc_flags |= MLY_CMD_DATAOUT;
1796 if ((error = copyin(uc->DataTransferBuffer, mc->mc_data, mc->mc_length)) != 0)
1800 /* copy the controller command */
1801 bcopy(&uc->CommandMailbox, mc->mc_packet, sizeof(uc->CommandMailbox));
1803 /* clear command completion handler so that we get woken up */
1804 mc->mc_complete = NULL;
1806 /* execute the command */
1808 mly_requeue_ready(mc);
1810 while (!(mc->mc_flags & MLY_CMD_COMPLETE))
1811 tsleep(mc, 0, "mlyioctl", 0);
1814 /* return the data to userspace */
1815 if (uc->DataTransferLength > 0)
1816 if ((error = copyout(mc->mc_data, uc->DataTransferBuffer, mc->mc_length)) != 0)
1819 /* return the sense buffer to userspace */
1820 if ((uc->RequestSenseLength > 0) && (mc->mc_sense > 0)) {
1821 if ((error = copyout(mc->mc_packet, uc->RequestSenseBuffer,
1822 min(uc->RequestSenseLength, mc->mc_sense))) != 0)
1826 /* return command results to userspace (caller will copy out) */
1827 uc->DataTransferLength = mc->mc_resid;
1828 uc->RequestSenseLength = min(uc->RequestSenseLength, mc->mc_sense);
1829 uc->CommandStatus = mc->mc_status;
1833 if (mc->mc_data != NULL)
1834 free(mc->mc_data, M_DEVBUF);
1836 mly_release_command(mc);
1840 /********************************************************************************
1841 * Return health status to userspace. If the health change index in the user
1842 * structure does not match that currently exported by the controller, we
1843 * return the current status immediately. Otherwise, we block until either
1844 * interrupted or new status is delivered.
1847 mly_user_health(struct mly_softc *sc, struct mly_user_health *uh)
1849 struct mly_health_status mh;
1852 /* fetch the current health status from userspace */
1853 if ((error = copyin(uh->HealthStatusBuffer, &mh, sizeof(mh))) != 0)
1856 /* spin waiting for a status update */
1858 error = EWOULDBLOCK;
1859 while ((error != 0) && (sc->mly_event_change == mh.change_counter))
1860 error = tsleep(&sc->mly_event_change, PCATCH, "mlyhealth", 0);
1863 /* copy the controller's health status buffer out (there is a race here if it changes again) */
1864 error = copyout(&sc->mly_mmbox->mmm_health.status, uh->HealthStatusBuffer,
1865 sizeof(uh->HealthStatusBuffer));