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 1.10 2004/06/21 15:39:31 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 mc->mc_data = malloc(sizeof(union mly_devinfo), M_DEVBUF, M_INTWAIT | M_ZERO);
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 mc->mc_data = malloc(datasize, M_DEVBUF, M_INTWAIT);
569 mc->mc_flags |= MLY_CMD_DATAIN;
572 mc->mc_flags |= MLY_CMD_DATAOUT;
574 mc->mc_length = datasize;
575 mc->mc_packet->generic.data_size = datasize;
578 /* run the command */
579 if ((error = mly_immediate_command(mc)))
582 /* clean up and return any data */
583 *status = mc->mc_status;
584 if ((mc->mc_sense > 0) && (sense_buffer != NULL)) {
585 bcopy(mc->mc_packet, sense_buffer, mc->mc_sense);
586 *sense_length = mc->mc_sense;
590 /* should we return a data pointer? */
591 if ((data != NULL) && (*data == NULL))
594 /* command completed OK */
599 /* do we need to free a data buffer we allocated? */
600 if (error && (mc->mc_data != NULL) && (*data == NULL))
601 free(mc->mc_data, M_DEVBUF);
602 mly_release_command(mc);
607 /********************************************************************************
608 * Fetch one event from the controller.
611 mly_fetch_event(struct mly_softc *sc)
613 struct mly_command *mc;
614 struct mly_command_ioctl *mci;
622 if (mly_alloc_command(sc, &mc))
623 return; /* we'll get retried the next time a command completes */
625 /* set up the data buffer */
626 mc->mc_data = malloc(sizeof(struct mly_event), M_DEVBUF, M_INTWAIT|M_ZERO);
627 mc->mc_length = sizeof(struct mly_event);
628 mc->mc_flags |= MLY_CMD_DATAIN;
629 mc->mc_complete = mly_complete_event;
632 * Get an event number to fetch. It's possible that we've raced with another
633 * context for the last event, in which case there will be no more events.
636 if (sc->mly_event_counter == sc->mly_event_waiting) {
637 mly_release_command(mc);
641 event = sc->mly_event_counter++;
647 * At this point we are committed to sending this request, as it
648 * will be the only one constructed for this particular event number.
650 mci = (struct mly_command_ioctl *)&mc->mc_packet->ioctl;
651 mci->opcode = MDACMD_IOCTL;
652 mci->data_size = sizeof(struct mly_event);
653 mci->addr.phys.lun = (event >> 16) & 0xff;
654 mci->addr.phys.target = (event >> 24) & 0xff;
655 mci->addr.phys.channel = 0;
656 mci->addr.phys.controller = 0;
657 mci->timeout.value = 30;
658 mci->timeout.scale = MLY_TIMEOUT_SECONDS;
659 mci->sub_ioctl = MDACIOCTL_GETEVENT;
660 mci->param.getevent.sequence_number_low = event & 0xffff;
662 debug(2, "fetch event %u", event);
665 * Use the ready queue to get this command dispatched.
667 mly_enqueue_ready(mc);
671 /********************************************************************************
672 * Handle the completion of an event poll.
674 * Note that we don't actually have to instigate another poll; the completion of
675 * this command will trigger that if there are any more events to poll for.
678 mly_complete_event(struct mly_command *mc)
680 struct mly_softc *sc = mc->mc_sc;
681 struct mly_event *me = (struct mly_event *)mc->mc_data;
686 * If the event was successfully fetched, process it.
688 if (mc->mc_status == SCSI_STATUS_OK) {
689 mly_process_event(sc, me);
692 mly_release_command(mc);
695 /********************************************************************************
696 * Process a controller event.
699 mly_process_event(struct mly_softc *sc, struct mly_event *me)
701 struct scsi_sense_data *ssd = (struct scsi_sense_data *)&me->sense[0];
703 int bus, target, event, class, action;
706 * Errors can be reported using vendor-unique sense data. In this case, the
707 * event code will be 0x1c (Request sense data present), the sense key will
708 * be 0x09 (vendor specific), the MSB of the ASC will be set, and the
709 * actual event code will be a 16-bit value comprised of the ASCQ (low byte)
710 * and low seven bits of the ASC (low seven bits of the high byte).
712 if ((me->code == 0x1c) &&
713 ((ssd->flags & SSD_KEY) == SSD_KEY_Vendor_Specific) &&
714 (ssd->add_sense_code & 0x80)) {
715 event = ((int)(ssd->add_sense_code & ~0x80) << 8) + ssd->add_sense_code_qual;
720 /* look up event, get codes */
721 fp = mly_describe_code(mly_table_event, event);
723 debug(2, "Event %d code 0x%x", me->sequence_number, me->code);
727 if (isupper(class) && bootverbose)
728 class = tolower(class);
730 /* get action code, text string */
735 * Print some information about the event.
737 * This code uses a table derived from the corresponding portion of the Linux
738 * driver, and thus the parser is very similar.
741 case 'p': /* error on physical device */
742 mly_printf(sc, "physical device %d:%d %s\n", me->channel, me->target, tp);
744 sc->mly_btl[me->channel][me->target].mb_flags |= MLY_BTL_RESCAN;
746 case 'l': /* error on logical unit */
747 case 'm': /* message about logical unit */
748 bus = MLY_LOGDEV_BUS(sc, me->lun);
749 target = MLY_LOGDEV_TARGET(me->lun);
750 mly_name_device(sc, bus, target);
751 mly_printf(sc, "logical device %d (%s) %s\n", me->lun, sc->mly_btl[bus][target].mb_name, tp);
753 sc->mly_btl[bus][target].mb_flags |= MLY_BTL_RESCAN;
756 case 's': /* report of sense data */
757 if (((ssd->flags & SSD_KEY) == SSD_KEY_NO_SENSE) ||
758 (((ssd->flags & SSD_KEY) == SSD_KEY_NOT_READY) &&
759 (ssd->add_sense_code == 0x04) &&
760 ((ssd->add_sense_code_qual == 0x01) || (ssd->add_sense_code_qual == 0x02))))
761 break; /* ignore NO_SENSE or NOT_READY in one case */
763 mly_printf(sc, "physical device %d:%d %s\n", me->channel, me->target, tp);
764 mly_printf(sc, " sense key %d asc %02x ascq %02x\n",
765 ssd->flags & SSD_KEY, ssd->add_sense_code, ssd->add_sense_code_qual);
766 mly_printf(sc, " info %4D csi %4D\n", ssd->info, "", ssd->cmd_spec_info, "");
768 sc->mly_btl[me->channel][me->target].mb_flags |= MLY_BTL_RESCAN;
771 mly_printf(sc, tp, me->target, me->lun);
774 mly_printf(sc, "controller %s\n", tp);
777 mly_printf(sc, "%s - %d\n", tp, me->code);
779 default: /* probably a 'noisy' event being ignored */
784 /********************************************************************************
785 * Perform periodic activities.
788 mly_periodic(void *data)
790 struct mly_softc *sc = (struct mly_softc *)data;
791 int nchn, bus, target;
798 nchn = sc->mly_controllerinfo->physical_channels_present +
799 sc->mly_controllerinfo->virtual_channels_present;
800 for (bus = 0; bus < nchn; bus++) {
801 for (target = 0; target < MLY_MAX_TARGETS; target++) {
803 /* ignore the controller in this scan */
804 if (target == sc->mly_controllerparam->initiator_id)
807 /* perform device rescan? */
808 if (sc->mly_btl[bus][target].mb_flags & MLY_BTL_RESCAN)
809 mly_rescan_btl(sc, bus, target);
813 sc->mly_periodic = timeout(mly_periodic, sc, hz);
816 /********************************************************************************
817 ********************************************************************************
819 ********************************************************************************
820 ********************************************************************************/
822 /********************************************************************************
823 * Run a command and wait for it to complete.
827 mly_immediate_command(struct mly_command *mc)
829 struct mly_softc *sc = mc->mc_sc;
834 /* spinning at splcam is ugly, but we're only used during controller init */
836 if ((error = mly_start(mc)))
839 if (sc->mly_state & MLY_STATE_INTERRUPTS_ON) {
840 /* sleep on the command */
841 while(!(mc->mc_flags & MLY_CMD_COMPLETE)) {
842 tsleep(mc, 0, "mlywait", 0);
845 /* spin and collect status while we do */
846 while(!(mc->mc_flags & MLY_CMD_COMPLETE)) {
854 /********************************************************************************
855 * Start as much queued I/O as possible on the controller
858 mly_startio(struct mly_softc *sc)
860 struct mly_command *mc;
866 /* try for a ready command */
867 mc = mly_dequeue_ready(sc);
869 /* try to build a command from a queued ccb */
871 mly_cam_command(sc, &mc);
873 /* no command == nothing to do */
877 /* try to post the command */
879 /* controller busy, or no resources - defer for later */
880 mly_requeue_ready(mc);
886 /********************************************************************************
887 * Deliver a command to the controller; allocate controller resources at the
891 mly_start(struct mly_command *mc)
893 struct mly_softc *sc = mc->mc_sc;
894 union mly_command_packet *pkt;
900 * Set the command up for delivery to the controller.
903 mc->mc_packet->generic.command_id = mc->mc_slot;
908 * Do we have to use the hardware mailbox?
910 if (!(sc->mly_state & MLY_STATE_MMBOX_ACTIVE)) {
912 * Check to see if the controller is ready for us.
914 if (MLY_IDBR_TRUE(sc, MLY_HM_CMDSENT)) {
918 mc->mc_flags |= MLY_CMD_BUSY;
921 * It's ready, send the command.
923 MLY_SET_MBOX(sc, sc->mly_command_mailbox, &mc->mc_packetphys);
924 MLY_SET_REG(sc, sc->mly_idbr, MLY_HM_CMDSENT);
926 } else { /* use memory-mailbox mode */
928 pkt = &sc->mly_mmbox->mmm_command[sc->mly_mmbox_command_index];
930 /* check to see if the next index is free yet */
931 if (pkt->mmbox.flag != 0) {
935 mc->mc_flags |= MLY_CMD_BUSY;
937 /* copy in new command */
938 bcopy(mc->mc_packet->mmbox.data, pkt->mmbox.data, sizeof(pkt->mmbox.data));
939 /* barrier to ensure completion of previous write before we write the flag */
940 bus_space_barrier(NULL, NULL, 0, 0, BUS_SPACE_BARRIER_WRITE); /* tag/handle? */
942 pkt->mmbox.flag = mc->mc_packet->mmbox.flag;
943 /* barrier to ensure completion of previous write before we notify the controller */
944 bus_space_barrier(NULL, NULL, 0, 0, BUS_SPACE_BARRIER_WRITE); /* tag/handle */
946 /* signal controller, update index */
947 MLY_SET_REG(sc, sc->mly_idbr, MLY_AM_CMDSENT);
948 sc->mly_mmbox_command_index = (sc->mly_mmbox_command_index + 1) % MLY_MMBOX_COMMANDS;
951 mly_enqueue_busy(mc);
956 /********************************************************************************
957 * Pick up command status from the controller, schedule a completion event
960 mly_done(struct mly_softc *sc)
962 struct mly_command *mc;
963 union mly_status_packet *sp;
970 /* pick up hardware-mailbox commands */
971 if (MLY_ODBR_TRUE(sc, MLY_HM_STSREADY)) {
972 slot = MLY_GET_REG2(sc, sc->mly_status_mailbox);
973 if (slot < MLY_SLOT_MAX) {
974 mc = &sc->mly_command[slot - MLY_SLOT_START];
975 mc->mc_status = MLY_GET_REG(sc, sc->mly_status_mailbox + 2);
976 mc->mc_sense = MLY_GET_REG(sc, sc->mly_status_mailbox + 3);
977 mc->mc_resid = MLY_GET_REG4(sc, sc->mly_status_mailbox + 4);
979 mc->mc_flags &= ~MLY_CMD_BUSY;
980 mly_enqueue_complete(mc);
983 /* slot 0xffff may mean "extremely bogus command" */
984 mly_printf(sc, "got HM completion for illegal slot %u\n", slot);
986 /* unconditionally acknowledge status */
987 MLY_SET_REG(sc, sc->mly_odbr, MLY_HM_STSREADY);
988 MLY_SET_REG(sc, sc->mly_idbr, MLY_HM_STSACK);
991 /* pick up memory-mailbox commands */
992 if (MLY_ODBR_TRUE(sc, MLY_AM_STSREADY)) {
994 sp = &sc->mly_mmbox->mmm_status[sc->mly_mmbox_status_index];
996 /* check for more status */
997 if (sp->mmbox.flag == 0)
1000 /* get slot number */
1001 slot = sp->status.command_id;
1002 if (slot < MLY_SLOT_MAX) {
1003 mc = &sc->mly_command[slot - MLY_SLOT_START];
1004 mc->mc_status = sp->status.status;
1005 mc->mc_sense = sp->status.sense_length;
1006 mc->mc_resid = sp->status.residue;
1007 mly_remove_busy(mc);
1008 mc->mc_flags &= ~MLY_CMD_BUSY;
1009 mly_enqueue_complete(mc);
1012 /* slot 0xffff may mean "extremely bogus command" */
1013 mly_printf(sc, "got AM completion for illegal slot %u at %d\n",
1014 slot, sc->mly_mmbox_status_index);
1017 /* clear and move to next index */
1019 sc->mly_mmbox_status_index = (sc->mly_mmbox_status_index + 1) % MLY_MMBOX_STATUS;
1021 /* acknowledge that we have collected status value(s) */
1022 MLY_SET_REG(sc, sc->mly_odbr, MLY_AM_STSREADY);
1027 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005
1028 if (sc->mly_state & MLY_STATE_INTERRUPTS_ON)
1029 taskqueue_enqueue(taskqueue_swi, &sc->mly_task_complete);
1032 mly_complete(sc, 0);
1036 /********************************************************************************
1037 * Process completed commands
1040 mly_complete(void *context, int pending)
1042 struct mly_softc *sc = (struct mly_softc *)context;
1043 struct mly_command *mc;
1044 void (* mc_complete)(struct mly_command *mc);
1050 * Spin pulling commands off the completed queue and processing them.
1052 while ((mc = mly_dequeue_complete(sc)) != NULL) {
1055 * Free controller resources, mark command complete.
1057 * Note that as soon as we mark the command complete, it may be freed
1058 * out from under us, so we need to save the mc_complete field in
1059 * order to later avoid dereferencing mc. (We would not expect to
1060 * have a polling/sleeping consumer with mc_complete != NULL).
1062 mly_unmap_command(mc);
1063 mc_complete = mc->mc_complete;
1064 mc->mc_flags |= MLY_CMD_COMPLETE;
1067 * Call completion handler or wake up sleeping consumer.
1069 if (mc_complete != NULL) {
1077 * We may have freed up controller resources which would allow us
1078 * to push more commands onto the controller, so we check here.
1083 * The controller may have updated the health status information,
1084 * so check for it here.
1086 * Note that we only check for health status after a completed command. It
1087 * might be wise to ping the controller occasionally if it's been idle for
1088 * a while just to check up on it. While a filesystem is mounted, or I/O is
1089 * active this isn't really an issue.
1091 if (sc->mly_mmbox->mmm_health.status.change_counter != sc->mly_event_change) {
1092 sc->mly_event_change = sc->mly_mmbox->mmm_health.status.change_counter;
1093 debug(1, "event change %d, event status update, %d -> %d", sc->mly_event_change,
1094 sc->mly_event_waiting, sc->mly_mmbox->mmm_health.status.next_event);
1095 sc->mly_event_waiting = sc->mly_mmbox->mmm_health.status.next_event;
1097 /* wake up anyone that might be interested in this */
1098 wakeup(&sc->mly_event_change);
1100 if (sc->mly_event_counter != sc->mly_event_waiting)
1101 mly_fetch_event(sc);
1104 /********************************************************************************
1105 ********************************************************************************
1106 Command Buffer Management
1107 ********************************************************************************
1108 ********************************************************************************/
1110 /********************************************************************************
1111 * Allocate a command.
1114 mly_alloc_command(struct mly_softc *sc, struct mly_command **mcp)
1116 struct mly_command *mc;
1120 if ((mc = mly_dequeue_free(sc)) == NULL)
1127 /********************************************************************************
1128 * Release a command back to the freelist.
1131 mly_release_command(struct mly_command *mc)
1136 * Fill in parts of the command that may cause confusion if
1137 * a consumer doesn't when we are later allocated.
1141 mc->mc_complete = NULL;
1142 mc->mc_private = NULL;
1145 * By default, we set up to overwrite the command packet with
1146 * sense information.
1148 mc->mc_packet->generic.sense_buffer_address = mc->mc_packetphys;
1149 mc->mc_packet->generic.maximum_sense_size = sizeof(union mly_command_packet);
1151 mly_enqueue_free(mc);
1154 /********************************************************************************
1155 * Map helper for command allocation.
1158 mly_alloc_commands_map(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1160 struct mly_softc *sc = (struct mly_softc *)arg
1164 sc->mly_packetphys = segs[0].ds_addr;
1167 /********************************************************************************
1168 * Allocate and initialise command and packet structures.
1171 mly_alloc_commands(struct mly_softc *sc)
1173 struct mly_command *mc;
1177 * Allocate enough space for all the command packets in one chunk and
1178 * map them permanently into controller-visible space.
1180 if (bus_dmamem_alloc(sc->mly_packet_dmat, (void **)&sc->mly_packet,
1181 BUS_DMA_NOWAIT, &sc->mly_packetmap)) {
1184 bus_dmamap_load(sc->mly_packet_dmat, sc->mly_packetmap, sc->mly_packet,
1185 MLY_MAXCOMMANDS * sizeof(union mly_command_packet),
1186 mly_alloc_commands_map, sc, 0);
1188 for (i = 0; i < MLY_MAXCOMMANDS; i++) {
1189 mc = &sc->mly_command[i];
1190 bzero(mc, sizeof(*mc));
1192 mc->mc_slot = MLY_SLOT_START + i;
1193 mc->mc_packet = sc->mly_packet + i;
1194 mc->mc_packetphys = sc->mly_packetphys + (i * sizeof(union mly_command_packet));
1195 if (!bus_dmamap_create(sc->mly_buffer_dmat, 0, &mc->mc_datamap))
1196 mly_release_command(mc);
1201 /********************************************************************************
1202 * Command-mapping helper function - populate this command's s/g table
1203 * with the s/g entries for its data.
1206 mly_map_command_sg(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1208 struct mly_command *mc = (struct mly_command *)arg;
1209 struct mly_softc *sc = mc->mc_sc;
1210 struct mly_command_generic *gen = &(mc->mc_packet->generic);
1211 struct mly_sg_entry *sg;
1216 /* can we use the transfer structure directly? */
1218 sg = &gen->transfer.direct.sg[0];
1219 gen->command_control.extended_sg_table = 0;
1221 tabofs = ((mc->mc_slot - MLY_SLOT_START) * MLY_MAXSGENTRIES);
1222 sg = sc->mly_sg_table + tabofs;
1223 gen->transfer.indirect.entries[0] = nseg;
1224 gen->transfer.indirect.table_physaddr[0] = sc->mly_sg_busaddr + (tabofs * sizeof(struct mly_sg_entry));
1225 gen->command_control.extended_sg_table = 1;
1228 /* copy the s/g table */
1229 for (i = 0; i < nseg; i++) {
1230 sg[i].physaddr = segs[i].ds_addr;
1231 sg[i].length = segs[i].ds_len;
1237 /********************************************************************************
1238 * Command-mapping helper function - save the cdb's physical address.
1240 * We don't support 'large' SCSI commands at this time, so this is unused.
1243 mly_map_command_cdb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1245 struct mly_command *mc = (struct mly_command *)arg;
1249 /* XXX can we safely assume that a CDB will never cross a page boundary? */
1250 if ((segs[0].ds_addr % PAGE_SIZE) >
1251 ((segs[0].ds_addr + mc->mc_packet->scsi_large.cdb_length) % PAGE_SIZE))
1252 panic("cdb crosses page boundary");
1254 /* fix up fields in the command packet */
1255 mc->mc_packet->scsi_large.cdb_physaddr = segs[0].ds_addr;
1259 /********************************************************************************
1260 * Map a command into controller-visible space
1263 mly_map_command(struct mly_command *mc)
1265 struct mly_softc *sc = mc->mc_sc;
1269 /* don't map more than once */
1270 if (mc->mc_flags & MLY_CMD_MAPPED)
1273 /* does the command have a data buffer? */
1274 if (mc->mc_data != NULL)
1275 bus_dmamap_load(sc->mly_buffer_dmat, mc->mc_datamap, mc->mc_data, mc->mc_length,
1276 mly_map_command_sg, mc, 0);
1278 if (mc->mc_flags & MLY_CMD_DATAIN)
1279 bus_dmamap_sync(sc->mly_buffer_dmat, mc->mc_datamap, BUS_DMASYNC_PREREAD);
1280 if (mc->mc_flags & MLY_CMD_DATAOUT)
1281 bus_dmamap_sync(sc->mly_buffer_dmat, mc->mc_datamap, BUS_DMASYNC_PREWRITE);
1283 mc->mc_flags |= MLY_CMD_MAPPED;
1286 /********************************************************************************
1287 * Unmap a command from controller-visible space
1290 mly_unmap_command(struct mly_command *mc)
1292 struct mly_softc *sc = mc->mc_sc;
1296 if (!(mc->mc_flags & MLY_CMD_MAPPED))
1299 if (mc->mc_flags & MLY_CMD_DATAIN)
1300 bus_dmamap_sync(sc->mly_buffer_dmat, mc->mc_datamap, BUS_DMASYNC_POSTREAD);
1301 if (mc->mc_flags & MLY_CMD_DATAOUT)
1302 bus_dmamap_sync(sc->mly_buffer_dmat, mc->mc_datamap, BUS_DMASYNC_POSTWRITE);
1304 /* does the command have a data buffer? */
1305 if (mc->mc_data != NULL)
1306 bus_dmamap_unload(sc->mly_buffer_dmat, mc->mc_datamap);
1308 mc->mc_flags &= ~MLY_CMD_MAPPED;
1311 /********************************************************************************
1312 ********************************************************************************
1314 ********************************************************************************
1315 ********************************************************************************/
1317 /********************************************************************************
1318 * Handshake with the firmware while the card is being initialised.
1321 mly_fwhandshake(struct mly_softc *sc)
1323 u_int8_t error, param0, param1;
1328 /* set HM_STSACK and let the firmware initialise */
1329 MLY_SET_REG(sc, sc->mly_idbr, MLY_HM_STSACK);
1330 DELAY(1000); /* too short? */
1332 /* if HM_STSACK is still true, the controller is initialising */
1333 if (!MLY_IDBR_TRUE(sc, MLY_HM_STSACK))
1335 mly_printf(sc, "controller initialisation started\n");
1337 /* spin waiting for initialisation to finish, or for a message to be delivered */
1338 while (MLY_IDBR_TRUE(sc, MLY_HM_STSACK)) {
1339 /* check for a message */
1340 if (MLY_ERROR_VALID(sc)) {
1341 error = MLY_GET_REG(sc, sc->mly_error_status) & ~MLY_MSG_EMPTY;
1342 param0 = MLY_GET_REG(sc, sc->mly_command_mailbox);
1343 param1 = MLY_GET_REG(sc, sc->mly_command_mailbox + 1);
1346 case MLY_MSG_SPINUP:
1348 mly_printf(sc, "drive spinup in progress\n");
1349 spinup = 1; /* only print this once (should print drive being spun?) */
1352 case MLY_MSG_RACE_RECOVERY_FAIL:
1353 mly_printf(sc, "mirror race recovery failed, one or more drives offline\n");
1355 case MLY_MSG_RACE_IN_PROGRESS:
1356 mly_printf(sc, "mirror race recovery in progress\n");
1358 case MLY_MSG_RACE_ON_CRITICAL:
1359 mly_printf(sc, "mirror race recovery on a critical drive\n");
1361 case MLY_MSG_PARITY_ERROR:
1362 mly_printf(sc, "FATAL MEMORY PARITY ERROR\n");
1365 mly_printf(sc, "unknown initialisation code 0x%x\n", error);
1372 /********************************************************************************
1373 ********************************************************************************
1374 Debugging and Diagnostics
1375 ********************************************************************************
1376 ********************************************************************************/
1378 /********************************************************************************
1379 * Print some information about the controller.
1382 mly_describe_controller(struct mly_softc *sc)
1384 struct mly_ioctl_getcontrollerinfo *mi = sc->mly_controllerinfo;
1386 mly_printf(sc, "%16s, %d channel%s, firmware %d.%02d-%d-%02d (%02d%02d%02d%02d), %dMB RAM\n",
1387 mi->controller_name, mi->physical_channels_present, (mi->physical_channels_present) > 1 ? "s" : "",
1388 mi->fw_major, mi->fw_minor, mi->fw_turn, mi->fw_build, /* XXX turn encoding? */
1389 mi->fw_century, mi->fw_year, mi->fw_month, mi->fw_day,
1393 mly_printf(sc, "%s %s (%x), %dMHz %d-bit %.16s\n",
1394 mly_describe_code(mly_table_oemname, mi->oem_information),
1395 mly_describe_code(mly_table_controllertype, mi->controller_type), mi->controller_type,
1396 mi->interface_speed, mi->interface_width, mi->interface_name);
1397 mly_printf(sc, "%dMB %dMHz %d-bit %s%s%s, cache %dMB\n",
1398 mi->memory_size, mi->memory_speed, mi->memory_width,
1399 mly_describe_code(mly_table_memorytype, mi->memory_type),
1400 mi->memory_parity ? "+parity": "",mi->memory_ecc ? "+ECC": "",
1402 mly_printf(sc, "CPU: %s @ %dMHZ\n",
1403 mly_describe_code(mly_table_cputype, mi->cpu[0].type), mi->cpu[0].speed);
1404 if (mi->l2cache_size != 0)
1405 mly_printf(sc, "%dKB L2 cache\n", mi->l2cache_size);
1406 if (mi->exmemory_size != 0)
1407 mly_printf(sc, "%dMB %dMHz %d-bit private %s%s%s\n",
1408 mi->exmemory_size, mi->exmemory_speed, mi->exmemory_width,
1409 mly_describe_code(mly_table_memorytype, mi->exmemory_type),
1410 mi->exmemory_parity ? "+parity": "",mi->exmemory_ecc ? "+ECC": "");
1411 mly_printf(sc, "battery backup %s\n", mi->bbu_present ? "present" : "not installed");
1412 mly_printf(sc, "maximum data transfer %d blocks, maximum sg entries/command %d\n",
1413 mi->maximum_block_count, mi->maximum_sg_entries);
1414 mly_printf(sc, "logical devices present/critical/offline %d/%d/%d\n",
1415 mi->logical_devices_present, mi->logical_devices_critical, mi->logical_devices_offline);
1416 mly_printf(sc, "physical devices present %d\n",
1417 mi->physical_devices_present);
1418 mly_printf(sc, "physical disks present/offline %d/%d\n",
1419 mi->physical_disks_present, mi->physical_disks_offline);
1420 mly_printf(sc, "%d physical channel%s, %d virtual channel%s of %d possible\n",
1421 mi->physical_channels_present, mi->physical_channels_present == 1 ? "" : "s",
1422 mi->virtual_channels_present, mi->virtual_channels_present == 1 ? "" : "s",
1423 mi->virtual_channels_possible);
1424 mly_printf(sc, "%d parallel commands supported\n", mi->maximum_parallel_commands);
1425 mly_printf(sc, "%dMB flash ROM, %d of %d maximum cycles\n",
1426 mi->flash_size, mi->flash_age, mi->flash_maximum_age);
1431 /********************************************************************************
1432 * Print some controller state
1435 mly_printstate(struct mly_softc *sc)
1437 mly_printf(sc, "IDBR %02x ODBR %02x ERROR %02x (%x %x %x)\n",
1438 MLY_GET_REG(sc, sc->mly_idbr),
1439 MLY_GET_REG(sc, sc->mly_odbr),
1440 MLY_GET_REG(sc, sc->mly_error_status),
1443 sc->mly_error_status);
1444 mly_printf(sc, "IMASK %02x ISTATUS %02x\n",
1445 MLY_GET_REG(sc, sc->mly_interrupt_mask),
1446 MLY_GET_REG(sc, sc->mly_interrupt_status));
1447 mly_printf(sc, "COMMAND %02x %02x %02x %02x %02x %02x %02x %02x\n",
1448 MLY_GET_REG(sc, sc->mly_command_mailbox),
1449 MLY_GET_REG(sc, sc->mly_command_mailbox + 1),
1450 MLY_GET_REG(sc, sc->mly_command_mailbox + 2),
1451 MLY_GET_REG(sc, sc->mly_command_mailbox + 3),
1452 MLY_GET_REG(sc, sc->mly_command_mailbox + 4),
1453 MLY_GET_REG(sc, sc->mly_command_mailbox + 5),
1454 MLY_GET_REG(sc, sc->mly_command_mailbox + 6),
1455 MLY_GET_REG(sc, sc->mly_command_mailbox + 7));
1456 mly_printf(sc, "STATUS %02x %02x %02x %02x %02x %02x %02x %02x\n",
1457 MLY_GET_REG(sc, sc->mly_status_mailbox),
1458 MLY_GET_REG(sc, sc->mly_status_mailbox + 1),
1459 MLY_GET_REG(sc, sc->mly_status_mailbox + 2),
1460 MLY_GET_REG(sc, sc->mly_status_mailbox + 3),
1461 MLY_GET_REG(sc, sc->mly_status_mailbox + 4),
1462 MLY_GET_REG(sc, sc->mly_status_mailbox + 5),
1463 MLY_GET_REG(sc, sc->mly_status_mailbox + 6),
1464 MLY_GET_REG(sc, sc->mly_status_mailbox + 7));
1465 mly_printf(sc, " %04x %08x\n",
1466 MLY_GET_REG2(sc, sc->mly_status_mailbox),
1467 MLY_GET_REG4(sc, sc->mly_status_mailbox + 4));
1470 struct mly_softc *mly_softc0 = NULL;
1472 mly_printstate0(void)
1474 if (mly_softc0 != NULL)
1475 mly_printstate(mly_softc0);
1478 /********************************************************************************
1482 mly_print_command(struct mly_command *mc)
1484 struct mly_softc *sc = mc->mc_sc;
1486 mly_printf(sc, "COMMAND @ %p\n", mc);
1487 mly_printf(sc, " slot %d\n", mc->mc_slot);
1488 mly_printf(sc, " status 0x%x\n", mc->mc_status);
1489 mly_printf(sc, " sense len %d\n", mc->mc_sense);
1490 mly_printf(sc, " resid %d\n", mc->mc_resid);
1491 mly_printf(sc, " packet %p/0x%llx\n", mc->mc_packet, mc->mc_packetphys);
1492 if (mc->mc_packet != NULL)
1493 mly_print_packet(mc);
1494 mly_printf(sc, " data %p/%d\n", mc->mc_data, mc->mc_length);
1495 mly_printf(sc, " flags %b\n", mc->mc_flags, "\20\1busy\2complete\3slotted\4mapped\5datain\6dataout\n");
1496 mly_printf(sc, " complete %p\n", mc->mc_complete);
1497 mly_printf(sc, " private %p\n", mc->mc_private);
1500 /********************************************************************************
1501 * Print a command packet
1504 mly_print_packet(struct mly_command *mc)
1506 struct mly_softc *sc = mc->mc_sc;
1507 struct mly_command_generic *ge = (struct mly_command_generic *)mc->mc_packet;
1508 struct mly_command_scsi_small *ss = (struct mly_command_scsi_small *)mc->mc_packet;
1509 struct mly_command_scsi_large *sl = (struct mly_command_scsi_large *)mc->mc_packet;
1510 struct mly_command_ioctl *io = (struct mly_command_ioctl *)mc->mc_packet;
1513 mly_printf(sc, " command_id %d\n", ge->command_id);
1514 mly_printf(sc, " opcode %d\n", ge->opcode);
1515 mly_printf(sc, " command_control fua %d dpo %d est %d dd %s nas %d ddis %d\n",
1516 ge->command_control.force_unit_access,
1517 ge->command_control.disable_page_out,
1518 ge->command_control.extended_sg_table,
1519 (ge->command_control.data_direction == MLY_CCB_WRITE) ? "WRITE" : "READ",
1520 ge->command_control.no_auto_sense,
1521 ge->command_control.disable_disconnect);
1522 mly_printf(sc, " data_size %d\n", ge->data_size);
1523 mly_printf(sc, " sense_buffer_address 0x%llx\n", ge->sense_buffer_address);
1524 mly_printf(sc, " lun %d\n", ge->addr.phys.lun);
1525 mly_printf(sc, " target %d\n", ge->addr.phys.target);
1526 mly_printf(sc, " channel %d\n", ge->addr.phys.channel);
1527 mly_printf(sc, " logical device %d\n", ge->addr.log.logdev);
1528 mly_printf(sc, " controller %d\n", ge->addr.phys.controller);
1529 mly_printf(sc, " timeout %d %s\n",
1531 (ge->timeout.scale == MLY_TIMEOUT_SECONDS) ? "seconds" :
1532 ((ge->timeout.scale == MLY_TIMEOUT_MINUTES) ? "minutes" : "hours"));
1533 mly_printf(sc, " maximum_sense_size %d\n", ge->maximum_sense_size);
1534 switch(ge->opcode) {
1537 mly_printf(sc, " cdb length %d\n", ss->cdb_length);
1538 mly_printf(sc, " cdb %*D\n", ss->cdb_length, ss->cdb, " ");
1542 case MDACMD_SCSILCPT:
1543 mly_printf(sc, " cdb length %d\n", sl->cdb_length);
1544 mly_printf(sc, " cdb 0x%llx\n", sl->cdb_physaddr);
1548 mly_printf(sc, " sub_ioctl 0x%x\n", io->sub_ioctl);
1549 switch(io->sub_ioctl) {
1550 case MDACIOCTL_SETMEMORYMAILBOX:
1551 mly_printf(sc, " health_buffer_size %d\n",
1552 io->param.setmemorymailbox.health_buffer_size);
1553 mly_printf(sc, " health_buffer_phys 0x%llx\n",
1554 io->param.setmemorymailbox.health_buffer_physaddr);
1555 mly_printf(sc, " command_mailbox 0x%llx\n",
1556 io->param.setmemorymailbox.command_mailbox_physaddr);
1557 mly_printf(sc, " status_mailbox 0x%llx\n",
1558 io->param.setmemorymailbox.status_mailbox_physaddr);
1562 case MDACIOCTL_SETREALTIMECLOCK:
1563 case MDACIOCTL_GETHEALTHSTATUS:
1564 case MDACIOCTL_GETCONTROLLERINFO:
1565 case MDACIOCTL_GETLOGDEVINFOVALID:
1566 case MDACIOCTL_GETPHYSDEVINFOVALID:
1567 case MDACIOCTL_GETPHYSDEVSTATISTICS:
1568 case MDACIOCTL_GETLOGDEVSTATISTICS:
1569 case MDACIOCTL_GETCONTROLLERSTATISTICS:
1570 case MDACIOCTL_GETBDT_FOR_SYSDRIVE:
1571 case MDACIOCTL_CREATENEWCONF:
1572 case MDACIOCTL_ADDNEWCONF:
1573 case MDACIOCTL_GETDEVCONFINFO:
1574 case MDACIOCTL_GETFREESPACELIST:
1575 case MDACIOCTL_MORE:
1576 case MDACIOCTL_SETPHYSDEVPARAMETER:
1577 case MDACIOCTL_GETPHYSDEVPARAMETER:
1578 case MDACIOCTL_GETLOGDEVPARAMETER:
1579 case MDACIOCTL_SETLOGDEVPARAMETER:
1580 mly_printf(sc, " param %10D\n", io->param.data.param, " ");
1584 case MDACIOCTL_GETEVENT:
1585 mly_printf(sc, " event %d\n",
1586 io->param.getevent.sequence_number_low + ((u_int32_t)io->addr.log.logdev << 16));
1590 case MDACIOCTL_SETRAIDDEVSTATE:
1591 mly_printf(sc, " state %d\n", io->param.setraiddevstate.state);
1595 case MDACIOCTL_XLATEPHYSDEVTORAIDDEV:
1596 mly_printf(sc, " raid_device %d\n", io->param.xlatephysdevtoraiddev.raid_device);
1597 mly_printf(sc, " controller %d\n", io->param.xlatephysdevtoraiddev.controller);
1598 mly_printf(sc, " channel %d\n", io->param.xlatephysdevtoraiddev.channel);
1599 mly_printf(sc, " target %d\n", io->param.xlatephysdevtoraiddev.target);
1600 mly_printf(sc, " lun %d\n", io->param.xlatephysdevtoraiddev.lun);
1604 case MDACIOCTL_GETGROUPCONFINFO:
1605 mly_printf(sc, " group %d\n", io->param.getgroupconfinfo.group);
1609 case MDACIOCTL_GET_SUBSYSTEM_DATA:
1610 case MDACIOCTL_SET_SUBSYSTEM_DATA:
1611 case MDACIOCTL_STARTDISOCVERY:
1612 case MDACIOCTL_INITPHYSDEVSTART:
1613 case MDACIOCTL_INITPHYSDEVSTOP:
1614 case MDACIOCTL_INITRAIDDEVSTART:
1615 case MDACIOCTL_INITRAIDDEVSTOP:
1616 case MDACIOCTL_REBUILDRAIDDEVSTART:
1617 case MDACIOCTL_REBUILDRAIDDEVSTOP:
1618 case MDACIOCTL_MAKECONSISTENTDATASTART:
1619 case MDACIOCTL_MAKECONSISTENTDATASTOP:
1620 case MDACIOCTL_CONSISTENCYCHECKSTART:
1621 case MDACIOCTL_CONSISTENCYCHECKSTOP:
1622 case MDACIOCTL_RESETDEVICE:
1623 case MDACIOCTL_FLUSHDEVICEDATA:
1624 case MDACIOCTL_PAUSEDEVICE:
1625 case MDACIOCTL_UNPAUSEDEVICE:
1626 case MDACIOCTL_LOCATEDEVICE:
1627 case MDACIOCTL_SETMASTERSLAVEMODE:
1628 case MDACIOCTL_DELETERAIDDEV:
1629 case MDACIOCTL_REPLACEINTERNALDEV:
1630 case MDACIOCTL_CLEARCONF:
1631 case MDACIOCTL_GETCONTROLLERPARAMETER:
1632 case MDACIOCTL_SETCONTRLLERPARAMETER:
1633 case MDACIOCTL_CLEARCONFSUSPMODE:
1634 case MDACIOCTL_STOREIMAGE:
1635 case MDACIOCTL_READIMAGE:
1636 case MDACIOCTL_FLASHIMAGES:
1637 case MDACIOCTL_RENAMERAIDDEV:
1638 default: /* no idea what to print */
1644 case MDACMD_IOCTLCHECK:
1645 case MDACMD_MEMCOPY:
1648 break; /* print nothing */
1651 if (ge->command_control.extended_sg_table) {
1652 mly_printf(sc, " sg table 0x%llx/%d\n",
1653 ge->transfer.indirect.table_physaddr[0], ge->transfer.indirect.entries[0]);
1655 mly_printf(sc, " 0000 0x%llx/%lld\n",
1656 ge->transfer.direct.sg[0].physaddr, ge->transfer.direct.sg[0].length);
1657 mly_printf(sc, " 0001 0x%llx/%lld\n",
1658 ge->transfer.direct.sg[1].physaddr, ge->transfer.direct.sg[1].length);
1663 /********************************************************************************
1664 * Panic in a slightly informative fashion
1667 mly_panic(struct mly_softc *sc, char *reason)
1674 /********************************************************************************
1675 * Print queue statistics, callable from DDB.
1678 mly_print_controller(int controller)
1680 struct mly_softc *sc;
1682 if ((sc = devclass_get_softc(devclass_find("mly"), controller)) == NULL) {
1683 printf("mly: controller %d invalid\n", controller);
1685 device_printf(sc->mly_dev, "queue curr max\n");
1686 device_printf(sc->mly_dev, "free %04d/%04d\n",
1687 sc->mly_qstat[MLYQ_FREE].q_length, sc->mly_qstat[MLYQ_FREE].q_max);
1688 device_printf(sc->mly_dev, "ready %04d/%04d\n",
1689 sc->mly_qstat[MLYQ_READY].q_length, sc->mly_qstat[MLYQ_READY].q_max);
1690 device_printf(sc->mly_dev, "busy %04d/%04d\n",
1691 sc->mly_qstat[MLYQ_BUSY].q_length, sc->mly_qstat[MLYQ_BUSY].q_max);
1692 device_printf(sc->mly_dev, "complete %04d/%04d\n",
1693 sc->mly_qstat[MLYQ_COMPLETE].q_length, sc->mly_qstat[MLYQ_COMPLETE].q_max);
1698 /********************************************************************************
1699 ********************************************************************************
1700 Control device interface
1701 ********************************************************************************
1702 ********************************************************************************/
1704 /********************************************************************************
1705 * Accept an open operation on the control device.
1708 mly_user_open(dev_t dev, int flags, int fmt, d_thread_t *td)
1710 int unit = minor(dev);
1711 struct mly_softc *sc = devclass_get_softc(devclass_find("mly"), unit);
1713 sc->mly_state |= MLY_STATE_OPEN;
1717 /********************************************************************************
1718 * Accept the last close on the control device.
1721 mly_user_close(dev_t dev, int flags, int fmt, d_thread_t *td)
1723 int unit = minor(dev);
1724 struct mly_softc *sc = devclass_get_softc(devclass_find("mly"), unit);
1726 sc->mly_state &= ~MLY_STATE_OPEN;
1730 /********************************************************************************
1731 * Handle controller-specific control operations.
1734 mly_user_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *td)
1736 struct mly_softc *sc = (struct mly_softc *)dev->si_drv1;
1737 struct mly_user_command *uc = (struct mly_user_command *)addr;
1738 struct mly_user_health *uh = (struct mly_user_health *)addr;
1742 return(mly_user_command(sc, uc));
1744 return(mly_user_health(sc, uh));
1750 /********************************************************************************
1751 * Execute a command passed in from userspace.
1753 * The control structure contains the actual command for the controller, as well
1754 * as the user-space data pointer and data size, and an optional sense buffer
1755 * size/pointer. On completion, the data size is adjusted to the command
1756 * residual, and the sense buffer size to the size of the returned sense data.
1760 mly_user_command(struct mly_softc *sc, struct mly_user_command *uc)
1762 struct mly_command *mc;
1765 /* allocate a command */
1766 if (mly_alloc_command(sc, &mc)) {
1768 goto out; /* XXX Linux version will wait for a command */
1771 /* handle data size/direction */
1772 mc->mc_length = (uc->DataTransferLength >= 0) ? uc->DataTransferLength : -uc->DataTransferLength;
1773 if (mc->mc_length > 0)
1774 mc->mc_data = malloc(mc->mc_length, M_DEVBUF, M_INTWAIT);
1775 if (uc->DataTransferLength > 0) {
1776 mc->mc_flags |= MLY_CMD_DATAIN;
1777 bzero(mc->mc_data, mc->mc_length);
1779 if (uc->DataTransferLength < 0) {
1780 mc->mc_flags |= MLY_CMD_DATAOUT;
1781 if ((error = copyin(uc->DataTransferBuffer, mc->mc_data, mc->mc_length)) != 0)
1785 /* copy the controller command */
1786 bcopy(&uc->CommandMailbox, mc->mc_packet, sizeof(uc->CommandMailbox));
1788 /* clear command completion handler so that we get woken up */
1789 mc->mc_complete = NULL;
1791 /* execute the command */
1793 mly_requeue_ready(mc);
1795 while (!(mc->mc_flags & MLY_CMD_COMPLETE))
1796 tsleep(mc, 0, "mlyioctl", 0);
1799 /* return the data to userspace */
1800 if (uc->DataTransferLength > 0)
1801 if ((error = copyout(mc->mc_data, uc->DataTransferBuffer, mc->mc_length)) != 0)
1804 /* return the sense buffer to userspace */
1805 if ((uc->RequestSenseLength > 0) && (mc->mc_sense > 0)) {
1806 if ((error = copyout(mc->mc_packet, uc->RequestSenseBuffer,
1807 min(uc->RequestSenseLength, mc->mc_sense))) != 0)
1811 /* return command results to userspace (caller will copy out) */
1812 uc->DataTransferLength = mc->mc_resid;
1813 uc->RequestSenseLength = min(uc->RequestSenseLength, mc->mc_sense);
1814 uc->CommandStatus = mc->mc_status;
1818 if (mc->mc_data != NULL)
1819 free(mc->mc_data, M_DEVBUF);
1821 mly_release_command(mc);
1825 /********************************************************************************
1826 * Return health status to userspace. If the health change index in the user
1827 * structure does not match that currently exported by the controller, we
1828 * return the current status immediately. Otherwise, we block until either
1829 * interrupted or new status is delivered.
1832 mly_user_health(struct mly_softc *sc, struct mly_user_health *uh)
1834 struct mly_health_status mh;
1837 /* fetch the current health status from userspace */
1838 if ((error = copyin(uh->HealthStatusBuffer, &mh, sizeof(mh))) != 0)
1841 /* spin waiting for a status update */
1843 error = EWOULDBLOCK;
1844 while ((error != 0) && (sc->mly_event_change == mh.change_counter))
1845 error = tsleep(&sc->mly_event_change, PCATCH, "mlyhealth", 0);
1848 /* copy the controller's health status buffer out (there is a race here if it changes again) */
1849 error = copyout(&sc->mly_mmbox->mmm_health.status, uh->HealthStatusBuffer,
1850 sizeof(uh->HealthStatusBuffer));