2 * Copyright (c) 2009 The DragonFly Project. All rights reserved.
4 * This code is derived from software contributed to The DragonFly Project
5 * by Matthew Dillon <dillon@backplane.com>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * 3. Neither the name of The DragonFly Project nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific, prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * Copyright (c) 2007 David Gwynne <dlg@openbsd.org>
37 * Permission to use, copy, modify, and distribute this software for any
38 * purpose with or without fee is hereby granted, provided that the above
39 * copyright notice and this permission notice appear in all copies.
41 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
42 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
43 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
44 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
45 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
46 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
47 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
49 * $OpenBSD: atascsi.c,v 1.64 2009/02/16 21:19:06 miod Exp $
53 * Implement each SATA port as its own SCSI bus on CAM. This way we can
54 * implement future port multiplier features as individual devices on the
57 * Much of the cdb<->xa conversion code was taken from OpenBSD, the rest
58 * was written natively for DragonFly.
63 const char *ScsiTypeArray[32] = {
98 static void sili_xpt_action(struct cam_sim *sim, union ccb *ccb);
99 static void sili_xpt_poll(struct cam_sim *sim);
100 static void sili_xpt_scsi_disk_io(struct sili_port *ap,
101 struct ata_port *at, union ccb *ccb);
102 static void sili_xpt_scsi_atapi_io(struct sili_port *ap,
103 struct ata_port *at, union ccb *ccb);
105 static void sili_ata_complete_disk_rw(struct ata_xfer *xa);
106 static void sili_ata_complete_disk_synchronize_cache(struct ata_xfer *xa);
107 static void sili_atapi_complete_cmd(struct ata_xfer *xa);
108 static void sili_ata_dummy_sense(struct scsi_sense_data *sense_data);
109 static void sili_ata_atapi_sense(struct ata_fis_d2h *rfis,
110 struct scsi_sense_data *sense_data);
112 static int sili_cam_probe_disk(struct sili_port *ap, struct ata_port *at);
113 static int sili_cam_probe_atapi(struct sili_port *ap, struct ata_port *at);
114 static void sili_ata_dummy_done(struct ata_xfer *xa);
115 static void ata_fix_identify(struct ata_identify *id);
116 static void sili_cam_rescan(struct sili_port *ap);
119 sili_cam_attach(struct sili_port *ap)
121 struct cam_devq *devq;
127 * We want at least one ccb to be available for error processing
128 * so don't let CAM use more then ncmds - 1.
130 unit = device_get_unit(ap->ap_sc->sc_dev);
131 if (ap->ap_sc->sc_ncmds > 1)
132 devq = cam_simq_alloc(ap->ap_sc->sc_ncmds - 1);
134 devq = cam_simq_alloc(ap->ap_sc->sc_ncmds);
138 sim = cam_sim_alloc(sili_xpt_action, sili_xpt_poll, "sili",
139 (void *)ap, unit, &sim_mplock, 1, 1, devq);
140 cam_simq_release(devq);
145 sili_os_unlock_port(ap);
146 error = xpt_bus_register(ap->ap_sim, ap->ap_num);
147 sili_os_lock_port(ap);
148 if (error != CAM_SUCCESS) {
152 ap->ap_flags |= AP_F_BUS_REGISTERED;
154 if (ap->ap_probe == ATA_PROBE_NEED_IDENT)
155 error = sili_cam_probe(ap, NULL);
162 ap->ap_flags |= AP_F_CAM_ATTACHED;
168 * The state of the port has changed.
170 * If at is NULL the physical port has changed state.
171 * If at is non-NULL a particular target behind a PM has changed state.
173 * If found is -1 the target state must be queued to a non-interrupt context.
174 * (only works with at == NULL).
176 * If found is 0 the target was removed.
177 * If found is 1 the target was inserted.
180 sili_cam_changed(struct sili_port *ap, struct ata_port *atx, int found)
182 struct cam_path *tmppath;
186 target = atx ? atx->at_target : CAM_TARGET_WILDCARD;
188 if (ap->ap_sim == NULL)
190 if (found == CAM_TARGET_WILDCARD) {
191 status = xpt_create_path(&tmppath, NULL,
192 cam_sim_path(ap->ap_sim),
193 target, CAM_LUN_WILDCARD);
194 if (status != CAM_REQ_CMP)
198 status = xpt_create_path(&tmppath, NULL,
199 cam_sim_path(ap->ap_sim),
202 if (status != CAM_REQ_CMP)
209 xpt_async(AC_FOUND_DEVICE, tmppath, NULL);
211 xpt_async(AC_LOST_DEVICE, tmppath, NULL);
214 xpt_free_path(tmppath);
218 sili_cam_detach(struct sili_port *ap)
222 if ((ap->ap_flags & AP_F_CAM_ATTACHED) == 0)
226 xpt_freeze_simq(ap->ap_sim, 1);
228 if (ap->ap_flags & AP_F_BUS_REGISTERED) {
229 error = xpt_bus_deregister(cam_sim_path(ap->ap_sim));
230 KKASSERT(error == CAM_REQ_CMP);
231 ap->ap_flags &= ~AP_F_BUS_REGISTERED;
234 cam_sim_free(ap->ap_sim);
238 ap->ap_flags &= ~AP_F_CAM_ATTACHED;
242 * Once the SILI port has been attached we need to probe for a device or
243 * devices on the port and setup various options.
245 * If at is NULL we are probing the direct-attached device on the port,
246 * which may or may not be a port multiplier.
249 sili_cam_probe(struct sili_port *ap, struct ata_port *atx)
254 u_int64_t capacity_bytes;
267 * Delayed CAM attachment for initial probe, sim may be NULL
269 if (ap->ap_sim == NULL)
273 * A NULL atx indicates a probe of the directly connected device.
274 * A non-NULL atx indicates a device connected via a port multiplier.
275 * We need to preserve atx for calls to sili_ata_get_xfer().
277 * at is always non-NULL. For directly connected devices we supply
278 * an (at) pointing to target 0.
281 at = ap->ap_ata; /* direct attached - device 0 */
282 if (ap->ap_type == ATA_PORT_T_PM) {
283 kprintf("%s: Found Port Multiplier\n",
287 at->at_type = ap->ap_type;
290 if (atx->at_type == ATA_PORT_T_PM) {
291 kprintf("%s: Bogus device, reducing port count to %d\n",
292 ATANAME(ap, atx), atx->at_target);
293 if (ap->ap_pmcount > atx->at_target)
294 ap->ap_pmcount = atx->at_target;
298 if (ap->ap_type == ATA_PORT_T_NONE)
300 if (at->at_type == ATA_PORT_T_NONE)
304 * Issue identify, saving the result
306 xa = sili_ata_get_xfer(ap, atx);
307 xa->complete = sili_ata_dummy_done;
308 xa->data = &at->at_identify;
309 xa->datalen = sizeof(at->at_identify);
310 xa->flags = ATA_F_READ | ATA_F_PIO | ATA_F_POLL;
311 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target;
313 switch(at->at_type) {
314 case ATA_PORT_T_DISK:
315 xa->fis->command = ATA_C_IDENTIFY;
318 case ATA_PORT_T_ATAPI:
319 xa->fis->command = ATA_C_ATAPI_IDENTIFY;
320 xa->flags |= ATA_F_AUTOSENSE;
324 xa->fis->command = ATA_C_ATAPI_IDENTIFY;
325 type = "UNKNOWN(ATAPI?)";
328 xa->fis->features = 0;
332 if (sili_ata_cmd(xa) != ATA_S_COMPLETE) {
333 kprintf("%s: Detected %s device but unable to IDENTIFY\n",
334 ATANAME(ap, atx), type);
335 sili_ata_put_xfer(xa);
338 sili_ata_put_xfer(xa);
340 ata_fix_identify(&at->at_identify);
343 * Read capacity using SATA probe info.
345 if (le16toh(at->at_identify.cmdset83) & 0x0400) {
346 /* LBA48 feature set supported */
348 for (i = 3; i >= 0; --i) {
351 le16toh(at->at_identify.addrsecxt[i]);
354 capacity = le16toh(at->at_identify.addrsec[1]);
356 capacity += le16toh(at->at_identify.addrsec[0]);
358 at->at_capacity = capacity;
360 ap->ap_probe = ATA_PROBE_GOOD;
362 capacity_bytes = capacity * 512;
365 * Negotiate NCQ, throw away any ata_xfer's beyond the negotiated
366 * number of slots and limit the number of CAM ccb's to one less
367 * so we always have a slot available for recovery.
369 * NCQ is not used if ap_ncqdepth is 1 or the host controller does
370 * not support it, and in that case the driver can handle extra
373 * NCQ is currently used only with direct-attached disks. It is
374 * not used with port multipliers or direct-attached ATAPI devices.
376 * Remember at least one extra CCB needs to be reserved for the
379 if ((ap->ap_sc->sc_flags & SILI_F_NCQ) &&
380 at->at_type == ATA_PORT_T_DISK &&
381 (le16toh(at->at_identify.satacap) & (1 << 8))) {
382 at->at_ncqdepth = (le16toh(at->at_identify.qdepth) & 0x1F) + 1;
383 devncqdepth = at->at_ncqdepth;
384 if (at->at_ncqdepth > ap->ap_sc->sc_ncmds)
385 at->at_ncqdepth = ap->ap_sc->sc_ncmds;
386 if (at->at_ncqdepth > 1) {
387 for (i = 0; i < ap->ap_sc->sc_ncmds; ++i) {
388 xa = sili_ata_get_xfer(ap, atx);
389 if (xa->tag < at->at_ncqdepth) {
390 xa->state = ATA_S_COMPLETE;
391 sili_ata_put_xfer(xa);
394 if (at->at_ncqdepth >= ap->ap_sc->sc_ncmds) {
395 cam_devq_resize(ap->ap_sim->devq,
396 at->at_ncqdepth - 1);
404 * Make the model string a bit more presentable
406 for (model_len = 40; model_len; --model_len) {
407 if (at->at_identify.model[model_len-1] == ' ')
409 if (at->at_identify.model[model_len-1] == 0)
415 * Generate informatiive strings.
417 * NOTE: We do not automatically set write caching, lookahead,
418 * or the security state for ATAPI devices.
420 if (at->at_identify.cmdset82 & ATA_IDENTIFY_WRITECACHE) {
421 if (at->at_identify.features85 & ATA_IDENTIFY_WRITECACHE)
423 else if (at->at_type == ATA_PORT_T_ATAPI)
431 if (at->at_identify.cmdset82 & ATA_IDENTIFY_LOOKAHEAD) {
432 if (at->at_identify.features85 & ATA_IDENTIFY_LOOKAHEAD)
434 else if (at->at_type == ATA_PORT_T_ATAPI)
442 if (at->at_identify.cmdset82 & ATA_IDENTIFY_SECURITY) {
443 if (at->at_identify.securestatus & ATA_SECURE_FROZEN)
445 else if (at->at_type == ATA_PORT_T_ATAPI)
447 else if (SiliNoFeatures & (1 << ap->ap_num))
448 scstr = "<disabled>";
455 kprintf("%s: Found %s \"%*.*s %8.8s\" serial=\"%20.20s\"\n"
456 "%s: tags=%d/%d satacap=%04x satafea=%04x NCQ=%s "
457 "capacity=%lld.%02dMB\n",
461 model_len, model_len,
462 at->at_identify.model,
463 at->at_identify.firmware,
464 at->at_identify.serial,
467 devncqdepth, ap->ap_sc->sc_ncmds,
468 at->at_identify.satacap,
469 at->at_identify.satafsup,
470 (at->at_ncqdepth > 1 ? "YES" : "NO"),
471 (long long)capacity_bytes / (1024 * 1024),
472 (int)(capacity_bytes % (1024 * 1024)) * 100 / (1024 * 1024)
474 kprintf("%s: f85=%04x f86=%04x f87=%04x WC=%s RA=%s SEC=%s\n",
476 at->at_identify.features85,
477 at->at_identify.features86,
478 at->at_identify.features87,
485 * Additional type-specific probing
487 switch(at->at_type) {
488 case ATA_PORT_T_DISK:
489 error = sili_cam_probe_disk(ap, atx);
491 case ATA_PORT_T_ATAPI:
492 error = sili_cam_probe_atapi(ap, atx);
500 at->at_probe = ATA_PROBE_FAILED;
502 ap->ap_probe = at->at_probe;
504 at->at_probe = ATA_PROBE_GOOD;
506 ap->ap_probe = at->at_probe;
512 * DISK-specific probe after initial ident
515 sili_cam_probe_disk(struct sili_port *ap, struct ata_port *atx)
520 at = atx ? atx : ap->ap_ata;
523 * Enable write cache if supported
525 * NOTE: "WD My Book" external disk devices have a very poor
526 * daughter board between the the ESATA and the HD. Sending
527 * any ATA_C_SET_FEATURES commands will break the hardware port
528 * with a fatal protocol error. However, this device also
529 * indicates that WRITECACHE is already on and READAHEAD is
530 * not supported so we avoid the issue.
532 if ((at->at_identify.cmdset82 & ATA_IDENTIFY_WRITECACHE) &&
533 (at->at_identify.features85 & ATA_IDENTIFY_WRITECACHE) == 0) {
534 xa = sili_ata_get_xfer(ap, atx);
535 xa->complete = sili_ata_dummy_done;
536 xa->fis->command = ATA_C_SET_FEATURES;
537 /*xa->fis->features = ATA_SF_WRITECACHE_EN;*/
538 xa->fis->features = ATA_SF_LOOKAHEAD_EN;
539 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target;
541 xa->flags = ATA_F_READ | ATA_F_PIO | ATA_F_POLL;
544 if (sili_ata_cmd(xa) == ATA_S_COMPLETE)
545 at->at_features |= ATA_PORT_F_WCACHE;
547 kprintf("%s: Unable to enable write-caching\n",
549 sili_ata_put_xfer(xa);
553 * Enable readahead if supported
555 if ((at->at_identify.cmdset82 & ATA_IDENTIFY_LOOKAHEAD) &&
556 (at->at_identify.features85 & ATA_IDENTIFY_LOOKAHEAD) == 0) {
557 xa = sili_ata_get_xfer(ap, atx);
558 xa->complete = sili_ata_dummy_done;
559 xa->fis->command = ATA_C_SET_FEATURES;
560 xa->fis->features = ATA_SF_LOOKAHEAD_EN;
561 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target;
563 xa->flags = ATA_F_READ | ATA_F_PIO | ATA_F_POLL;
566 if (sili_ata_cmd(xa) == ATA_S_COMPLETE)
567 at->at_features |= ATA_PORT_F_RAHEAD;
569 kprintf("%s: Unable to enable read-ahead\n",
571 sili_ata_put_xfer(xa);
575 * FREEZE LOCK the device so malicious users can't lock it on us.
576 * As there is no harm in issuing this to devices that don't
577 * support the security feature set we just send it, and don't bother
578 * checking if the device sends a command abort to tell us it doesn't
581 if ((at->at_identify.cmdset82 & ATA_IDENTIFY_SECURITY) &&
582 (at->at_identify.securestatus & ATA_SECURE_FROZEN) == 0 &&
583 (SiliNoFeatures & (1 << ap->ap_num)) == 0) {
584 xa = sili_ata_get_xfer(ap, atx);
585 xa->complete = sili_ata_dummy_done;
586 xa->fis->command = ATA_C_SEC_FREEZE_LOCK;
587 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target;
588 xa->flags = ATA_F_READ | ATA_F_PIO | ATA_F_POLL;
591 if (sili_ata_cmd(xa) == ATA_S_COMPLETE)
592 at->at_features |= ATA_PORT_F_FRZLCK;
594 kprintf("%s: Unable to set security freeze\n",
596 sili_ata_put_xfer(xa);
603 * ATAPI-specific probe after initial ident
606 sili_cam_probe_atapi(struct sili_port *ap, struct ata_port *atx)
612 * Fix byte ordering so buffers can be accessed as
616 ata_fix_identify(struct ata_identify *id)
621 swap = (u_int16_t *)id->serial;
622 for (i = 0; i < sizeof(id->serial) / sizeof(u_int16_t); i++)
623 swap[i] = bswap16(swap[i]);
625 swap = (u_int16_t *)id->firmware;
626 for (i = 0; i < sizeof(id->firmware) / sizeof(u_int16_t); i++)
627 swap[i] = bswap16(swap[i]);
629 swap = (u_int16_t *)id->model;
630 for (i = 0; i < sizeof(id->model) / sizeof(u_int16_t); i++)
631 swap[i] = bswap16(swap[i]);
635 * Dummy done callback for xa.
638 sili_ata_dummy_done(struct ata_xfer *xa)
643 * Use an engineering request to initiate a target scan for devices
644 * behind a port multiplier.
646 * An asynchronous bus scan is used to avoid reentrancy issues.
649 sili_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb)
651 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr;
653 if (ccb->ccb_h.func_code == XPT_SCAN_BUS) {
654 ap->ap_flags &= ~AP_F_SCAN_RUNNING;
655 if (ap->ap_flags & AP_F_SCAN_REQUESTED) {
656 ap->ap_flags &= ~AP_F_SCAN_REQUESTED;
659 ap->ap_flags |= AP_F_SCAN_COMPLETED;
660 wakeup(&ap->ap_flags);
666 sili_cam_rescan(struct sili_port *ap)
668 struct cam_path *path;
673 if (ap->ap_flags & AP_F_SCAN_RUNNING) {
674 ap->ap_flags |= AP_F_SCAN_REQUESTED;
677 ap->ap_flags |= AP_F_SCAN_RUNNING;
678 for (i = 0; i < SILI_MAX_PMPORTS; ++i) {
679 ap->ap_ata[i].at_features |= ATA_PORT_F_RESCAN;
682 status = xpt_create_path(&path, xpt_periph, cam_sim_path(ap->ap_sim),
683 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
684 if (status != CAM_REQ_CMP)
687 ccb = xpt_alloc_ccb();
688 xpt_setup_ccb(&ccb->ccb_h, path, 5); /* 5 = low priority */
689 ccb->ccb_h.func_code = XPT_ENG_EXEC;
690 ccb->ccb_h.cbfcnp = sili_cam_rescan_callback;
691 ccb->ccb_h.sim_priv.entries[0].ptr = ap;
692 ccb->crcn.flags = CAM_FLAG_NONE;
693 xpt_action_async(ccb);
697 sili_xpt_rescan(struct sili_port *ap)
699 struct cam_path *path;
703 status = xpt_create_path(&path, xpt_periph, cam_sim_path(ap->ap_sim),
704 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
705 if (status != CAM_REQ_CMP)
708 ccb = xpt_alloc_ccb();
709 xpt_setup_ccb(&ccb->ccb_h, path, 5); /* 5 = low priority */
710 ccb->ccb_h.func_code = XPT_SCAN_BUS;
711 ccb->ccb_h.cbfcnp = sili_cam_rescan_callback;
712 ccb->ccb_h.sim_priv.entries[0].ptr = ap;
713 ccb->crcn.flags = CAM_FLAG_NONE;
714 xpt_action_async(ccb);
718 * Action function - dispatch command
722 sili_xpt_action(struct cam_sim *sim, union ccb *ccb)
724 struct sili_port *ap;
725 struct ata_port *at, *atx;
726 struct ccb_hdr *ccbh;
730 ap = cam_sim_softc(sim);
733 KKASSERT(ap != NULL);
735 unit = cam_sim_unit(sim);
738 * Early failure checks. These checks do not apply to XPT_PATH_INQ,
739 * otherwise the bus rescan will not remove the dead devices when
742 * For non-wildcards we have one target (0) and one lun (0),
743 * unless we have a port multiplier.
745 * A wildcard target indicates only the general bus is being
748 * Calculate at and atx. at is always non-NULL. atx is only
749 * non-NULL for direct-attached devices. It will be NULL for
750 * devices behind a port multiplier.
752 * XXX What do we do with a LUN wildcard?
754 if (ccbh->target_id != CAM_TARGET_WILDCARD &&
755 ccbh->func_code != XPT_PATH_INQ) {
756 if (ap->ap_type == ATA_PORT_T_NONE) {
757 ccbh->status = CAM_DEV_NOT_THERE;
761 if (ccbh->target_id < 0 || ccbh->target_id >= ap->ap_pmcount) {
762 ccbh->status = CAM_DEV_NOT_THERE;
766 at += ccbh->target_id;
767 if (ap->ap_type == ATA_PORT_T_PM)
770 if (ccbh->target_lun != CAM_LUN_WILDCARD && ccbh->target_lun) {
771 ccbh->status = CAM_DEV_NOT_THERE;
778 * Switch on the meta XPT command
780 switch(ccbh->func_code) {
783 * This routine is called after a port multiplier has been
786 ccbh->status = CAM_REQ_CMP;
787 sili_os_lock_port(ap);
788 sili_port_state_machine(ap, 0);
789 sili_os_unlock_port(ap);
795 * This command always succeeds, otherwise the bus scan
796 * will not detach dead devices.
798 ccb->cpi.version_num = 1;
799 ccb->cpi.hba_inquiry = 0;
800 ccb->cpi.target_sprt = 0;
801 ccb->cpi.hba_misc = PIM_SEQSCAN;
802 ccb->cpi.hba_eng_cnt = 0;
803 bzero(ccb->cpi.vuhba_flags, sizeof(ccb->cpi.vuhba_flags));
804 ccb->cpi.max_target = SILI_MAX_PMPORTS - 1;
805 ccb->cpi.max_lun = 0;
806 ccb->cpi.async_flags = 0;
807 ccb->cpi.hpath_id = 0;
808 ccb->cpi.initiator_id = SILI_MAX_PMPORTS - 1;
809 ccb->cpi.unit_number = cam_sim_unit(sim);
810 ccb->cpi.bus_id = cam_sim_bus(sim);
811 ccb->cpi.base_transfer_speed = 150000;
812 ccb->cpi.transport = XPORT_SATA;
813 ccb->cpi.transport_version = 1;
814 ccb->cpi.protocol = PROTO_SCSI;
815 ccb->cpi.protocol_version = SCSI_REV_2;
817 ccbh->status = CAM_REQ_CMP;
818 if (ccbh->target_id == CAM_TARGET_WILDCARD) {
819 sili_os_lock_port(ap);
820 sili_port_state_machine(ap, 0);
821 sili_os_unlock_port(ap);
823 switch(sili_pread(ap, SILI_PREG_SSTS) &
824 SILI_PREG_SSTS_SPD) {
825 case SILI_PREG_SSTS_SPD_GEN1:
826 ccb->cpi.base_transfer_speed = 150000;
828 case SILI_PREG_SSTS_SPD_GEN2:
829 ccb->cpi.base_transfer_speed = 300000;
833 ccb->cpi.base_transfer_speed = 1000;
837 if (ap->ap_type == ATA_PORT_T_NONE)
838 ccbh->status = CAM_DEV_NOT_THERE;
844 sili_os_lock_port(ap);
845 if (ap->ap_type == ATA_PORT_T_NONE) {
846 ccbh->status = CAM_DEV_NOT_THERE;
848 sili_port_reset(ap, atx, 0);
849 ccbh->status = CAM_REQ_CMP;
851 sili_os_unlock_port(ap);
855 sili_os_lock_port(ap);
856 sili_port_reset(ap, NULL, 1);
857 sili_os_unlock_port(ap);
858 ccbh->status = CAM_REQ_CMP;
861 case XPT_SET_TRAN_SETTINGS:
862 ccbh->status = CAM_FUNC_NOTAVAIL;
865 case XPT_GET_TRAN_SETTINGS:
866 ccb->cts.protocol = PROTO_SCSI;
867 ccb->cts.protocol_version = SCSI_REV_2;
868 ccb->cts.transport = XPORT_SATA;
869 ccb->cts.transport_version = XPORT_VERSION_UNSPECIFIED;
870 ccb->cts.proto_specific.valid = 0;
871 ccb->cts.xport_specific.valid = 0;
872 ccbh->status = CAM_REQ_CMP;
875 case XPT_CALC_GEOMETRY:
876 cam_calc_geometry(&ccb->ccg, 1);
881 * Our parallel startup code might have only probed through
882 * to the IDENT, so do the last step if necessary.
884 if (at->at_probe == ATA_PROBE_NEED_IDENT)
885 sili_cam_probe(ap, atx);
886 if (at->at_probe != ATA_PROBE_GOOD) {
887 ccbh->status = CAM_DEV_NOT_THERE;
891 switch(at->at_type) {
892 case ATA_PORT_T_DISK:
893 sili_xpt_scsi_disk_io(ap, atx, ccb);
895 case ATA_PORT_T_ATAPI:
896 sili_xpt_scsi_atapi_io(ap, atx, ccb);
899 ccbh->status = CAM_REQ_INVALID;
905 ccbh->status = CAM_REQ_INVALID;
914 * Generally this function gets called heavily when interrupts might be
915 * non-operational, during a halt/reboot or panic.
919 sili_xpt_poll(struct cam_sim *sim)
921 struct sili_port *ap;
923 ap = cam_sim_softc(sim);
925 sili_os_lock_port(ap);
926 sili_port_intr(ap, 1);
927 sili_os_unlock_port(ap);
932 * Convert the SCSI command in ccb to an ata_xfer command in xa
933 * for ATA_PORT_T_DISK operations. Set the completion function
934 * to convert the response back, then dispatch to the OpenBSD SILI
937 * SILI DISK commands only support a limited command set, and we
938 * fake additional commands to make it play nice with the CAM subsystem.
942 sili_xpt_scsi_disk_io(struct sili_port *ap, struct ata_port *atx,
945 struct ccb_hdr *ccbh;
946 struct ccb_scsiio *csio;
949 struct ata_fis_h2d *fis;
951 union scsi_data *rdata;
957 ccbh = &ccb->csio.ccb_h;
959 at = atx ? atx : &ap->ap_ata[0];
962 * XXX not passing NULL at for direct attach!
964 xa = sili_ata_get_xfer(ap, atx);
965 rdata = (void *)csio->data_ptr;
966 rdata_len = csio->dxfer_len;
969 * Build the FIS or process the csio to completion.
971 cdb = (void *)((ccbh->flags & CAM_CDB_POINTER) ?
972 csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes);
974 switch(cdb->generic.opcode) {
977 * Auto-sense everything, so explicit sense requests
980 ccbh->status = CAM_SCSI_STATUS_ERROR;
984 * Inquiry supported features
986 * [opcode, byte2, page_code, length, control]
988 if (cdb->inquiry.byte2 & SI_EVPD) {
989 switch(cdb->inquiry.page_code) {
990 case SVPD_SUPPORTED_PAGE_LIST:
991 /* XXX atascsi_disk_vpd_supported */
992 case SVPD_UNIT_SERIAL_NUMBER:
993 /* XXX atascsi_disk_vpd_serial */
994 case SVPD_UNIT_DEVID:
995 /* XXX atascsi_disk_vpd_ident */
997 ccbh->status = CAM_FUNC_NOTAVAIL;
1001 bzero(rdata, rdata_len);
1002 if (rdata_len < SHORT_INQUIRY_LENGTH) {
1003 ccbh->status = CAM_CCB_LEN_ERR;
1006 if (rdata_len > sizeof(rdata->inquiry_data))
1007 rdata_len = sizeof(rdata->inquiry_data);
1008 rdata->inquiry_data.device = T_DIRECT;
1009 rdata->inquiry_data.version = SCSI_REV_SPC2;
1010 rdata->inquiry_data.response_format = 2;
1011 rdata->inquiry_data.additional_length = 32;
1012 bcopy("SATA ", rdata->inquiry_data.vendor, 8);
1013 bcopy(at->at_identify.model,
1014 rdata->inquiry_data.product,
1015 sizeof(rdata->inquiry_data.product));
1016 bcopy(at->at_identify.firmware,
1017 rdata->inquiry_data.revision,
1018 sizeof(rdata->inquiry_data.revision));
1019 ccbh->status = CAM_REQ_CMP;
1022 case READ_CAPACITY_16:
1023 if (cdb->read_capacity_16.service_action != SRC16_SERVICE_ACTION) {
1024 ccbh->status = CAM_REQ_INVALID;
1027 if (rdata_len < sizeof(rdata->read_capacity_data_16)) {
1028 ccbh->status = CAM_CCB_LEN_ERR;
1033 if (rdata_len < sizeof(rdata->read_capacity_data)) {
1034 ccbh->status = CAM_CCB_LEN_ERR;
1038 capacity = at->at_capacity;
1040 bzero(rdata, rdata_len);
1041 if (cdb->generic.opcode == READ_CAPACITY) {
1042 rdata_len = sizeof(rdata->read_capacity_data);
1043 if (capacity > 0xFFFFFFFFU)
1044 capacity = 0xFFFFFFFFU;
1045 bzero(&rdata->read_capacity_data, rdata_len);
1046 scsi_ulto4b((u_int32_t)capacity - 1,
1047 rdata->read_capacity_data.addr);
1048 scsi_ulto4b(512, rdata->read_capacity_data.length);
1050 rdata_len = sizeof(rdata->read_capacity_data_16);
1051 bzero(&rdata->read_capacity_data_16, rdata_len);
1052 scsi_u64to8b(capacity - 1,
1053 rdata->read_capacity_data_16.addr);
1054 scsi_ulto4b(512, rdata->read_capacity_data_16.length);
1056 ccbh->status = CAM_REQ_CMP;
1058 case SYNCHRONIZE_CACHE:
1060 * Synchronize cache. Specification says this can take
1061 * greater then 30 seconds so give it at least 45.
1064 fis->flags = ATA_H2D_FLAGS_CMD;
1065 fis->command = ATA_C_FLUSH_CACHE;
1067 if (xa->timeout < 45000)
1068 xa->timeout = 45000;
1070 xa->flags = ATA_F_READ;
1071 xa->complete = sili_ata_complete_disk_synchronize_cache;
1073 case TEST_UNIT_READY:
1074 case START_STOP_UNIT:
1077 * Just silently return success
1079 ccbh->status = CAM_REQ_CMP;
1085 * XXX implement pass-through
1087 ccbh->status = CAM_FUNC_NOTAVAIL;
1090 switch(cdb->generic.opcode) {
1092 lba = scsi_3btoul(cdb->rw_6.addr) & 0x1FFFFF;
1093 count = cdb->rw_6.length ? cdb->rw_6.length : 0x100;
1094 xa->flags = ATA_F_READ;
1097 lba = scsi_4btoul(cdb->rw_10.addr);
1098 count = scsi_2btoul(cdb->rw_10.length);
1099 xa->flags = ATA_F_READ;
1102 lba = scsi_4btoul(cdb->rw_12.addr);
1103 count = scsi_4btoul(cdb->rw_12.length);
1104 xa->flags = ATA_F_READ;
1107 lba = scsi_8btou64(cdb->rw_16.addr);
1108 count = scsi_4btoul(cdb->rw_16.length);
1109 xa->flags = ATA_F_READ;
1112 lba = scsi_3btoul(cdb->rw_6.addr) & 0x1FFFFF;
1113 count = cdb->rw_6.length ? cdb->rw_6.length : 0x100;
1114 xa->flags = ATA_F_WRITE;
1117 lba = scsi_4btoul(cdb->rw_10.addr);
1118 count = scsi_2btoul(cdb->rw_10.length);
1119 xa->flags = ATA_F_WRITE;
1122 lba = scsi_4btoul(cdb->rw_12.addr);
1123 count = scsi_4btoul(cdb->rw_12.length);
1124 xa->flags = ATA_F_WRITE;
1127 lba = scsi_8btou64(cdb->rw_16.addr);
1128 count = scsi_4btoul(cdb->rw_16.length);
1129 xa->flags = ATA_F_WRITE;
1132 ccbh->status = CAM_REQ_INVALID;
1135 if (ccbh->status != CAM_REQ_INPROG)
1139 fis->flags = ATA_H2D_FLAGS_CMD;
1140 fis->lba_low = (u_int8_t)lba;
1141 fis->lba_mid = (u_int8_t)(lba >> 8);
1142 fis->lba_high = (u_int8_t)(lba >> 16);
1143 fis->device = ATA_H2D_DEVICE_LBA;
1146 * NCQ only for direct-attached disks, do not currently
1147 * try to use NCQ with port multipliers.
1149 * XXX fixme SII chip can do NCQ w/ port multipliers.
1151 if (at->at_ncqdepth > 1 &&
1152 at->at_type == ATA_PORT_T_DISK &&
1153 (ap->ap_sc->sc_flags & SILI_F_NCQ) &&
1154 (ccbh->flags & CAM_POLLED) == 0) {
1156 * Use NCQ - always uses 48 bit addressing
1158 xa->flags |= ATA_F_NCQ;
1159 fis->command = (xa->flags & ATA_F_WRITE) ?
1160 ATA_C_WRITE_FPDMA : ATA_C_READ_FPDMA;
1161 fis->lba_low_exp = (u_int8_t)(lba >> 24);
1162 fis->lba_mid_exp = (u_int8_t)(lba >> 32);
1163 fis->lba_high_exp = (u_int8_t)(lba >> 40);
1164 fis->sector_count = xa->tag << 3;
1165 fis->features = (u_int8_t)count;
1166 fis->features_exp = (u_int8_t)(count >> 8);
1167 } else if (count > 0x100 || lba > 0xFFFFFFFFU) {
1171 fis->command = (xa->flags & ATA_F_WRITE) ?
1172 ATA_C_WRITEDMA_EXT : ATA_C_READDMA_EXT;
1173 fis->lba_low_exp = (u_int8_t)(lba >> 24);
1174 fis->lba_mid_exp = (u_int8_t)(lba >> 32);
1175 fis->lba_high_exp = (u_int8_t)(lba >> 40);
1176 fis->sector_count = (u_int8_t)count;
1177 fis->sector_count_exp = (u_int8_t)(count >> 8);
1182 * NOTE: 256 sectors is supported, stored as 0.
1184 fis->command = (xa->flags & ATA_F_WRITE) ?
1185 ATA_C_WRITEDMA : ATA_C_READDMA;
1186 fis->device |= (u_int8_t)(lba >> 24) & 0x0F;
1187 fis->sector_count = (u_int8_t)count;
1190 xa->data = csio->data_ptr;
1191 xa->datalen = csio->dxfer_len;
1192 xa->complete = sili_ata_complete_disk_rw;
1193 xa->timeout = ccbh->timeout; /* milliseconds */
1194 if (ccbh->flags & CAM_POLLED)
1195 xa->flags |= ATA_F_POLL;
1200 * If the request is still in progress the xa and FIS have
1201 * been set up and must be dispatched. Otherwise the request
1204 if (ccbh->status == CAM_REQ_INPROG) {
1205 KKASSERT(xa->complete != NULL);
1206 xa->atascsi_private = ccb;
1207 ccb->ccb_h.sim_priv.entries[0].ptr = ap;
1208 sili_os_lock_port(ap);
1209 fis->flags |= at->at_target;
1211 sili_os_unlock_port(ap);
1213 sili_ata_put_xfer(xa);
1219 * Convert the SCSI command in ccb to an ata_xfer command in xa
1220 * for ATA_PORT_T_ATAPI operations. Set the completion function
1221 * to convert the response back, then dispatch to the OpenBSD SILI
1226 sili_xpt_scsi_atapi_io(struct sili_port *ap, struct ata_port *atx,
1229 struct ccb_hdr *ccbh;
1230 struct ccb_scsiio *csio;
1231 struct ata_xfer *xa;
1232 struct ata_fis_h2d *fis;
1236 struct ata_port *at;
1238 ccbh = &ccb->csio.ccb_h;
1240 at = atx ? atx : &ap->ap_ata[0];
1242 switch (ccbh->flags & CAM_DIR_MASK) {
1244 flags = ATA_F_PACKET | ATA_F_READ;
1247 flags = ATA_F_PACKET | ATA_F_WRITE;
1250 flags = ATA_F_PACKET;
1253 ccbh->status = CAM_REQ_INVALID;
1260 * Special handling to get the rfis back into host memory while
1261 * still allowing the Sili chip to run commands in parallel to
1262 * ATAPI devices behind a PM.
1264 flags |= ATA_F_AUTOSENSE;
1267 * The command has to fit in the packet command buffer.
1269 if (csio->cdb_len < 6 || csio->cdb_len > 16) {
1270 ccbh->status = CAM_CCB_LEN_ERR;
1276 * Initialize the XA and FIS.
1278 * XXX not passing NULL at for direct attach!
1280 xa = sili_ata_get_xfer(ap, atx);
1283 fis->flags = ATA_H2D_FLAGS_CMD | at->at_target;
1284 fis->command = ATA_C_PACKET;
1286 fis->sector_count = xa->tag << 3;
1287 fis->features = ATA_H2D_FEATURES_DMA |
1288 ((flags & ATA_F_WRITE) ?
1289 ATA_H2D_FEATURES_DIR_WRITE : ATA_H2D_FEATURES_DIR_READ);
1290 fis->lba_mid = 0x00;
1291 fis->lba_high = 0x20;
1294 xa->data = csio->data_ptr;
1295 xa->datalen = csio->dxfer_len;
1296 xa->timeout = ccbh->timeout; /* milliseconds */
1298 if (ccbh->flags & CAM_POLLED)
1299 xa->flags |= ATA_F_POLL;
1302 * Copy the cdb to the packetcmd buffer in the FIS using a
1303 * convenient pointer in the xa.
1305 cdbs = (void *)((ccbh->flags & CAM_CDB_POINTER) ?
1306 csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes);
1307 bcopy(cdbs, xa->packetcmd, csio->cdb_len);
1310 kprintf("opcode %d cdb_len %d dxfer_len %d\n",
1311 cdbs->generic.opcode,
1312 csio->cdb_len, csio->dxfer_len);
1316 * Some ATAPI commands do not actually follow the SCSI standard.
1318 cdbd = (void *)xa->packetcmd;
1320 switch(cdbd->generic.opcode) {
1323 * Some ATAPI devices can't handle SI_EVPD being set
1324 * for a basic inquiry (page_code == 0).
1326 * Some ATAPI devices can't handle long inquiry lengths,
1327 * don't ask me why. Truncate the inquiry length.
1329 if ((cdbd->inquiry.byte2 & SI_EVPD) &&
1330 cdbd->inquiry.page_code == 0) {
1331 cdbd->inquiry.byte2 &= ~SI_EVPD;
1333 if (cdbd->inquiry.page_code == 0 &&
1334 cdbd->inquiry.length > SHORT_INQUIRY_LENGTH) {
1335 cdbd->inquiry.length = SHORT_INQUIRY_LENGTH;
1341 * Convert *_6 to *_10 commands. Most ATAPI devices
1342 * cannot handle the SCSI READ_6 and WRITE_6 commands.
1344 cdbd->rw_10.opcode |= 0x20;
1345 cdbd->rw_10.byte2 = 0;
1346 cdbd->rw_10.addr[0] = cdbs->rw_6.addr[0] & 0x1F;
1347 cdbd->rw_10.addr[1] = cdbs->rw_6.addr[1];
1348 cdbd->rw_10.addr[2] = cdbs->rw_6.addr[2];
1349 cdbd->rw_10.addr[3] = 0;
1350 cdbd->rw_10.reserved = 0;
1351 cdbd->rw_10.length[0] = 0;
1352 cdbd->rw_10.length[1] = cdbs->rw_6.length;
1353 cdbd->rw_10.control = cdbs->rw_6.control;
1362 xa->complete = sili_atapi_complete_cmd;
1363 xa->atascsi_private = ccb;
1364 ccb->ccb_h.sim_priv.entries[0].ptr = ap;
1365 sili_os_lock_port(ap);
1367 sili_os_unlock_port(ap);
1371 * Completion function for ATA_PORT_T_DISK cache synchronization.
1375 sili_ata_complete_disk_synchronize_cache(struct ata_xfer *xa)
1377 union ccb *ccb = xa->atascsi_private;
1378 struct ccb_hdr *ccbh = &ccb->ccb_h;
1379 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr;
1382 case ATA_S_COMPLETE:
1383 ccbh->status = CAM_REQ_CMP;
1384 ccb->csio.scsi_status = SCSI_STATUS_OK;
1387 kprintf("%s: synchronize_cache: error\n",
1388 ATANAME(ap, xa->at));
1389 ccbh->status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
1390 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
1391 sili_ata_dummy_sense(&ccb->csio.sense_data);
1394 kprintf("%s: synchronize_cache: timeout\n",
1395 ATANAME(ap, xa->at));
1396 ccbh->status = CAM_CMD_TIMEOUT;
1399 kprintf("%s: synchronize_cache: unknown state %d\n",
1400 ATANAME(ap, xa->at), xa->state);
1401 ccbh->status = CAM_REQ_CMP_ERR;
1404 sili_ata_put_xfer(xa);
1405 sili_os_unlock_port(ap);
1407 sili_os_lock_port(ap);
1411 * Completion function for ATA_PORT_T_DISK I/O
1415 sili_ata_complete_disk_rw(struct ata_xfer *xa)
1417 union ccb *ccb = xa->atascsi_private;
1418 struct ccb_hdr *ccbh = &ccb->ccb_h;
1419 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr;
1422 case ATA_S_COMPLETE:
1423 ccbh->status = CAM_REQ_CMP;
1424 ccb->csio.scsi_status = SCSI_STATUS_OK;
1427 kprintf("%s: disk_rw: error\n", ATANAME(ap, xa->at));
1428 ccbh->status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
1429 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
1430 sili_ata_dummy_sense(&ccb->csio.sense_data);
1433 kprintf("%s: disk_rw: timeout\n", ATANAME(ap, xa->at));
1434 ccbh->status = CAM_CMD_TIMEOUT;
1435 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
1436 sili_ata_dummy_sense(&ccb->csio.sense_data);
1439 kprintf("%s: disk_rw: unknown state %d\n",
1440 ATANAME(ap, xa->at), xa->state);
1441 ccbh->status = CAM_REQ_CMP_ERR;
1444 ccb->csio.resid = xa->resid;
1445 sili_ata_put_xfer(xa);
1446 sili_os_unlock_port(ap);
1448 sili_os_lock_port(ap);
1452 * Completion function for ATA_PORT_T_ATAPI I/O
1454 * Sense data is returned in the rfis.
1458 sili_atapi_complete_cmd(struct ata_xfer *xa)
1460 union ccb *ccb = xa->atascsi_private;
1461 struct ccb_hdr *ccbh = &ccb->ccb_h;
1462 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr;
1465 cdb = (void *)((ccb->ccb_h.flags & CAM_CDB_POINTER) ?
1466 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes);
1469 case ATA_S_COMPLETE:
1470 ccbh->status = CAM_REQ_CMP;
1471 ccb->csio.scsi_status = SCSI_STATUS_OK;
1474 ccbh->status = CAM_SCSI_STATUS_ERROR;
1475 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
1476 sili_ata_atapi_sense(xa->rfis, &ccb->csio.sense_data);
1479 kprintf("%s: cmd %d: timeout\n",
1480 PORTNAME(ap), cdb->generic.opcode);
1481 ccbh->status = CAM_CMD_TIMEOUT;
1482 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
1483 sili_ata_dummy_sense(&ccb->csio.sense_data);
1486 kprintf("%s: cmd %d: unknown state %d\n",
1487 PORTNAME(ap), cdb->generic.opcode, xa->state);
1488 ccbh->status = CAM_REQ_CMP_ERR;
1491 ccb->csio.resid = xa->resid;
1492 sili_ata_put_xfer(xa);
1493 sili_os_unlock_port(ap);
1495 sili_os_lock_port(ap);
1499 * Construct dummy sense data for errors on DISKs
1503 sili_ata_dummy_sense(struct scsi_sense_data *sense_data)
1505 sense_data->error_code = SSD_ERRCODE_VALID | SSD_CURRENT_ERROR;
1506 sense_data->segment = 0;
1507 sense_data->flags = SSD_KEY_MEDIUM_ERROR;
1508 sense_data->info[0] = 0;
1509 sense_data->info[1] = 0;
1510 sense_data->info[2] = 0;
1511 sense_data->info[3] = 0;
1512 sense_data->extra_len = 0;
1516 * Construct atapi sense data for errors on ATAPI
1518 * The ATAPI sense data is stored in the passed rfis and must be converted
1519 * to SCSI sense data.
1523 sili_ata_atapi_sense(struct ata_fis_d2h *rfis,
1524 struct scsi_sense_data *sense_data)
1526 sense_data->error_code = SSD_ERRCODE_VALID | SSD_CURRENT_ERROR;
1527 sense_data->segment = 0;
1528 sense_data->flags = (rfis->error & 0xF0) >> 4;
1529 if (rfis->error & 0x04)
1530 sense_data->flags |= SSD_KEY_ILLEGAL_REQUEST;
1531 if (rfis->error & 0x02)
1532 sense_data->flags |= SSD_EOM;
1533 if (rfis->error & 0x01)
1534 sense_data->flags |= SSD_ILI;
1535 sense_data->info[0] = 0;
1536 sense_data->info[1] = 0;
1537 sense_data->info[2] = 0;
1538 sense_data->info[3] = 0;
1539 sense_data->extra_len = 0;