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 static void ahci_xpt_action(struct cam_sim *sim, union ccb *ccb);
64 static void ahci_xpt_poll(struct cam_sim *sim);
65 static void ahci_xpt_scsi_disk_io(struct ahci_port *ap,
66 struct ata_port *at, union ccb *ccb);
67 static void ahci_xpt_scsi_atapi_io(struct ahci_port *ap,
68 struct ata_port *at, union ccb *ccb);
69 static void ahci_xpt_page_inquiry(struct ahci_port *ap,
70 struct ata_port *at, union ccb *ccb);
72 static void ahci_ata_complete_disk_rw(struct ata_xfer *xa);
73 static void ahci_ata_complete_disk_synchronize_cache(struct ata_xfer *xa);
74 static void ahci_atapi_complete_cmd(struct ata_xfer *xa);
75 static void ahci_ata_dummy_sense(struct scsi_sense_data *sense_data);
76 static void ahci_ata_atapi_sense(struct ata_fis_d2h *rfis,
77 struct scsi_sense_data *sense_data);
79 static int ahci_cam_probe_disk(struct ahci_port *ap, struct ata_port *at);
80 static int ahci_cam_probe_atapi(struct ahci_port *ap, struct ata_port *at);
81 static int ahci_set_xfer(struct ahci_port *ap, struct ata_port *atx);
82 static void ahci_ata_dummy_done(struct ata_xfer *xa);
83 static void ata_fix_identify(struct ata_identify *id);
84 static void ahci_cam_rescan(struct ahci_port *ap);
85 static void ahci_strip_string(const char **basep, int *lenp);
88 ahci_cam_attach(struct ahci_port *ap)
90 struct cam_devq *devq;
96 * We want at least one ccb to be available for error processing
97 * so don't let CAM use more then ncmds - 1.
99 unit = device_get_unit(ap->ap_sc->sc_dev);
100 if (ap->ap_sc->sc_ncmds > 1)
101 devq = cam_simq_alloc(ap->ap_sc->sc_ncmds - 1);
103 devq = cam_simq_alloc(ap->ap_sc->sc_ncmds);
107 sim = cam_sim_alloc(ahci_xpt_action, ahci_xpt_poll, "ahci",
108 (void *)ap, unit, &sim_mplock, 1, 1, devq);
109 cam_simq_release(devq);
114 ahci_os_unlock_port(ap);
115 error = xpt_bus_register(ap->ap_sim, ap->ap_num);
116 ahci_os_lock_port(ap);
117 if (error != CAM_SUCCESS) {
121 ap->ap_flags |= AP_F_BUS_REGISTERED;
123 if (ap->ap_probe == ATA_PROBE_NEED_IDENT)
124 error = ahci_cam_probe(ap, NULL);
131 ap->ap_flags |= AP_F_CAM_ATTACHED;
137 * The state of the port has changed.
139 * If at is NULL the physical port has changed state.
140 * If at is non-NULL a particular target behind a PM has changed state.
142 * If found is -1 the target state must be queued to a non-interrupt context.
143 * (only works with at == NULL).
145 * If found is 0 the target was removed.
146 * If found is 1 the target was inserted.
149 ahci_cam_changed(struct ahci_port *ap, struct ata_port *atx, int found)
151 struct cam_path *tmppath;
155 target = atx ? atx->at_target : CAM_TARGET_WILDCARD;
157 if (ap->ap_sim == NULL)
159 if (found == CAM_TARGET_WILDCARD) {
160 status = xpt_create_path(&tmppath, NULL,
161 cam_sim_path(ap->ap_sim),
162 target, CAM_LUN_WILDCARD);
163 if (status != CAM_REQ_CMP)
167 status = xpt_create_path(&tmppath, NULL,
168 cam_sim_path(ap->ap_sim),
171 if (status != CAM_REQ_CMP)
178 xpt_async(AC_FOUND_DEVICE, tmppath, NULL);
180 xpt_async(AC_LOST_DEVICE, tmppath, NULL);
183 xpt_free_path(tmppath);
187 ahci_cam_detach(struct ahci_port *ap)
191 if ((ap->ap_flags & AP_F_CAM_ATTACHED) == 0)
195 xpt_freeze_simq(ap->ap_sim, 1);
197 if (ap->ap_flags & AP_F_BUS_REGISTERED) {
198 error = xpt_bus_deregister(cam_sim_path(ap->ap_sim));
199 KKASSERT(error == CAM_REQ_CMP);
200 ap->ap_flags &= ~AP_F_BUS_REGISTERED;
203 cam_sim_free(ap->ap_sim);
207 ap->ap_flags &= ~AP_F_CAM_ATTACHED;
211 * Once the AHCI port has been attached we need to probe for a device or
212 * devices on the port and setup various options.
214 * If at is NULL we are probing the direct-attached device on the port,
215 * which may or may not be a port multiplier.
218 ahci_cam_probe(struct ahci_port *ap, struct ata_port *atx)
223 u_int64_t capacity_bytes;
230 const char *model_id;
231 const char *firmware_id;
232 const char *serial_id;
241 * Delayed CAM attachment for initial probe, sim may be NULL
243 if (ap->ap_sim == NULL)
247 * A NULL atx indicates a probe of the directly connected device.
248 * A non-NULL atx indicates a device connected via a port multiplier.
249 * We need to preserve atx for calls to ahci_ata_get_xfer().
251 * at is always non-NULL. For directly connected devices we supply
252 * an (at) pointing to target 0.
255 at = ap->ap_ata[0]; /* direct attached - device 0 */
256 if (ap->ap_type == ATA_PORT_T_PM) {
257 kprintf("%s: Found Port Multiplier\n",
261 at->at_type = ap->ap_type;
264 if (atx->at_type == ATA_PORT_T_PM) {
265 kprintf("%s: Bogus device, reducing port count to %d\n",
266 ATANAME(ap, atx), atx->at_target);
267 if (ap->ap_pmcount > atx->at_target)
268 ap->ap_pmcount = atx->at_target;
272 if (ap->ap_type == ATA_PORT_T_NONE)
274 if (at->at_type == ATA_PORT_T_NONE)
278 * Issue identify, saving the result
280 xa = ahci_ata_get_xfer(ap, atx);
281 xa->complete = ahci_ata_dummy_done;
282 xa->data = &at->at_identify;
283 xa->datalen = sizeof(at->at_identify);
284 xa->flags = ATA_F_READ | ATA_F_PIO | ATA_F_POLL;
285 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target;
287 switch(at->at_type) {
288 case ATA_PORT_T_DISK:
289 xa->fis->command = ATA_C_IDENTIFY;
292 case ATA_PORT_T_ATAPI:
293 xa->fis->command = ATA_C_ATAPI_IDENTIFY;
294 xa->flags |= ATA_F_AUTOSENSE;
298 xa->fis->command = ATA_C_ATAPI_IDENTIFY;
299 type = "UNKNOWN(ATAPI?)";
302 xa->fis->features = 0;
306 if (ahci_ata_cmd(xa) != ATA_S_COMPLETE) {
307 kprintf("%s: Detected %s device but unable to IDENTIFY\n",
308 ATANAME(ap, atx), type);
309 ahci_ata_put_xfer(xa);
312 ahci_ata_put_xfer(xa);
314 ata_fix_identify(&at->at_identify);
317 * Read capacity using SATA probe info.
319 if (le16toh(at->at_identify.cmdset83) & 0x0400) {
320 /* LBA48 feature set supported */
322 for (i = 3; i >= 0; --i) {
325 le16toh(at->at_identify.addrsecxt[i]);
328 capacity = le16toh(at->at_identify.addrsec[1]);
330 capacity += le16toh(at->at_identify.addrsec[0]);
333 capacity = 1024 * 1024 / 512;
334 at->at_capacity = capacity;
336 ap->ap_probe = ATA_PROBE_GOOD;
338 capacity_bytes = capacity * 512;
341 * Negotiate NCQ, throw away any ata_xfer's beyond the negotiated
342 * number of slots and limit the number of CAM ccb's to one less
343 * so we always have a slot available for recovery.
345 * NCQ is not used if ap_ncqdepth is 1 or the host controller does
346 * not support it, and in that case the driver can handle extra
349 * NCQ is currently used only with direct-attached disks. It is
350 * not used with port multipliers or direct-attached ATAPI devices.
352 * Remember at least one extra CCB needs to be reserved for the
355 if ((ap->ap_sc->sc_cap & AHCI_REG_CAP_SNCQ) &&
356 ap->ap_type == ATA_PORT_T_DISK &&
357 (le16toh(at->at_identify.satacap) & (1 << 8))) {
358 at->at_ncqdepth = (le16toh(at->at_identify.qdepth) & 0x1F) + 1;
359 devncqdepth = at->at_ncqdepth;
360 if (at->at_ncqdepth > ap->ap_sc->sc_ncmds)
361 at->at_ncqdepth = ap->ap_sc->sc_ncmds;
362 if (at->at_ncqdepth > 1) {
363 for (i = 0; i < ap->ap_sc->sc_ncmds; ++i) {
364 xa = ahci_ata_get_xfer(ap, atx);
365 if (xa->tag < at->at_ncqdepth) {
366 xa->state = ATA_S_COMPLETE;
367 ahci_ata_put_xfer(xa);
370 if (at->at_ncqdepth >= ap->ap_sc->sc_ncmds) {
371 cam_devq_resize(ap->ap_sim->devq,
372 at->at_ncqdepth - 1);
379 model_len = sizeof(at->at_identify.model);
380 model_id = at->at_identify.model;
381 ahci_strip_string(&model_id, &model_len);
383 firmware_len = sizeof(at->at_identify.firmware);
384 firmware_id = at->at_identify.firmware;
385 ahci_strip_string(&firmware_id, &firmware_len);
387 serial_len = sizeof(at->at_identify.serial);
388 serial_id = at->at_identify.serial;
389 ahci_strip_string(&serial_id, &serial_len);
392 * Generate informatiive strings.
394 * NOTE: We do not automatically set write caching, lookahead,
395 * or the security state for ATAPI devices.
397 if (at->at_identify.cmdset82 & ATA_IDENTIFY_WRITECACHE) {
398 if (at->at_identify.features85 & ATA_IDENTIFY_WRITECACHE)
400 else if (at->at_type == ATA_PORT_T_ATAPI)
408 if (at->at_identify.cmdset82 & ATA_IDENTIFY_LOOKAHEAD) {
409 if (at->at_identify.features85 & ATA_IDENTIFY_LOOKAHEAD)
411 else if (at->at_type == ATA_PORT_T_ATAPI)
419 if (at->at_identify.cmdset82 & ATA_IDENTIFY_SECURITY) {
420 if (at->at_identify.securestatus & ATA_SECURE_FROZEN)
422 else if (at->at_type == ATA_PORT_T_ATAPI)
424 else if (AhciNoFeatures & (1 << ap->ap_num))
425 scstr = "<disabled>";
432 kprintf("%s: Found %s \"%*.*s %*.*s\" serial=\"%*.*s\"\n"
433 "%s: tags=%d/%d satacap=%04x satafea=%04x NCQ=%s "
434 "capacity=%lld.%02dMB\n",
438 model_len, model_len, model_id,
439 firmware_len, firmware_len, firmware_id,
440 serial_len, serial_len, serial_id,
443 devncqdepth, ap->ap_sc->sc_ncmds,
444 at->at_identify.satacap,
445 at->at_identify.satafsup,
446 (at->at_ncqdepth > 1 ? "YES" : "NO"),
447 (long long)capacity_bytes / (1024 * 1024),
448 (int)(capacity_bytes % (1024 * 1024)) * 100 / (1024 * 1024)
450 kprintf("%s: f85=%04x f86=%04x f87=%04x WC=%s RA=%s SEC=%s\n",
452 at->at_identify.features85,
453 at->at_identify.features86,
454 at->at_identify.features87,
461 * Additional type-specific probing
463 switch(at->at_type) {
464 case ATA_PORT_T_DISK:
465 error = ahci_cam_probe_disk(ap, atx);
467 case ATA_PORT_T_ATAPI:
468 error = ahci_cam_probe_atapi(ap, atx);
476 at->at_probe = ATA_PROBE_FAILED;
478 ap->ap_probe = at->at_probe;
480 at->at_probe = ATA_PROBE_GOOD;
482 ap->ap_probe = at->at_probe;
488 * DISK-specific probe after initial ident
491 ahci_cam_probe_disk(struct ahci_port *ap, struct ata_port *atx)
496 at = atx ? atx : ap->ap_ata[0];
499 * Set dummy xfer mode
501 ahci_set_xfer(ap, atx);
504 * Enable write cache if supported
506 * NOTE: "WD My Book" external disk devices have a very poor
507 * daughter board between the the ESATA and the HD. Sending
508 * any ATA_C_SET_FEATURES commands will break the hardware port
509 * with a fatal protocol error. However, this device also
510 * indicates that WRITECACHE is already on and READAHEAD is
511 * not supported so we avoid the issue.
513 if ((at->at_identify.cmdset82 & ATA_IDENTIFY_WRITECACHE) &&
514 (at->at_identify.features85 & ATA_IDENTIFY_WRITECACHE) == 0) {
515 xa = ahci_ata_get_xfer(ap, atx);
516 xa->complete = ahci_ata_dummy_done;
517 xa->fis->command = ATA_C_SET_FEATURES;
518 xa->fis->features = ATA_SF_WRITECACHE_EN;
519 /* xa->fis->features = ATA_SF_LOOKAHEAD_EN; */
520 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target;
522 xa->flags = ATA_F_PIO | ATA_F_POLL;
525 if (ahci_ata_cmd(xa) == ATA_S_COMPLETE)
526 at->at_features |= ATA_PORT_F_WCACHE;
528 kprintf("%s: Unable to enable write-caching\n",
530 ahci_ata_put_xfer(xa);
534 * Enable readahead if supported
536 if ((at->at_identify.cmdset82 & ATA_IDENTIFY_LOOKAHEAD) &&
537 (at->at_identify.features85 & ATA_IDENTIFY_LOOKAHEAD) == 0) {
538 xa = ahci_ata_get_xfer(ap, atx);
539 xa->complete = ahci_ata_dummy_done;
540 xa->fis->command = ATA_C_SET_FEATURES;
541 xa->fis->features = ATA_SF_LOOKAHEAD_EN;
542 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target;
544 xa->flags = ATA_F_PIO | ATA_F_POLL;
547 if (ahci_ata_cmd(xa) == ATA_S_COMPLETE)
548 at->at_features |= ATA_PORT_F_RAHEAD;
550 kprintf("%s: Unable to enable read-ahead\n",
552 ahci_ata_put_xfer(xa);
556 * FREEZE LOCK the device so malicious users can't lock it on us.
557 * As there is no harm in issuing this to devices that don't
558 * support the security feature set we just send it, and don't bother
559 * checking if the device sends a command abort to tell us it doesn't
562 if ((at->at_identify.cmdset82 & ATA_IDENTIFY_SECURITY) &&
563 (at->at_identify.securestatus & ATA_SECURE_FROZEN) == 0 &&
564 (AhciNoFeatures & (1 << ap->ap_num)) == 0) {
565 xa = ahci_ata_get_xfer(ap, atx);
566 xa->complete = ahci_ata_dummy_done;
567 xa->fis->command = ATA_C_SEC_FREEZE_LOCK;
568 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target;
569 xa->flags = ATA_F_PIO | ATA_F_POLL;
572 if (ahci_ata_cmd(xa) == ATA_S_COMPLETE)
573 at->at_features |= ATA_PORT_F_FRZLCK;
575 kprintf("%s: Unable to set security freeze\n",
577 ahci_ata_put_xfer(xa);
584 * ATAPI-specific probe after initial ident
587 ahci_cam_probe_atapi(struct ahci_port *ap, struct ata_port *atx)
589 ahci_set_xfer(ap, atx);
594 * Setting the transfer mode is irrelevant for the SATA transport
595 * but some (atapi) devices seem to need it anyway. In addition
596 * if we are running through a SATA->PATA converter for some reason
597 * beyond my comprehension we might have to set the mode.
600 ahci_set_xfer(struct ahci_port *ap, struct ata_port *atx)
606 at = atx ? atx : ap->ap_ata[0];
609 * Get the supported mode. SATA hard drives usually set this
610 * field to zero because it's irrelevant for SATA. The general
611 * ATA spec allows unsupported fields to be 0 or bits all 1's.
613 * If the dmamode is not set the device understands that it is
614 * SATA and we don't have to send the obsolete SETXFER command.
616 mode = le16toh(at->at_identify.dmamode);
617 if (mode == 0 || mode == 0xFFFF)
621 * SATA atapi devices often still report a dma mode, even though
622 * it is irrelevant for SATA transport. It is also possible that
623 * we are running through a SATA->PATA converter and seeing the
626 * In this case the device may require a (dummy) SETXFER to be
627 * sent before it will work properly.
629 xa = ahci_ata_get_xfer(ap, atx);
630 xa->complete = ahci_ata_dummy_done;
631 xa->fis->command = ATA_C_SET_FEATURES;
632 xa->fis->features = ATA_SF_SETXFER;
633 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target;
635 xa->fis->sector_count = 0x40 | mode;
636 xa->fis->lba_low = 0;
637 xa->fis->lba_mid = 0;
638 xa->fis->lba_high = 0;
639 xa->flags = ATA_F_PIO | ATA_F_POLL;
642 if (ahci_ata_cmd(xa) != ATA_S_COMPLETE) {
643 kprintf("%s: Unable to set dummy xfer mode \n",
645 } else if (bootverbose) {
646 kprintf("%s: Set dummy xfer mode to %02x\n",
647 ATANAME(ap, atx), 0x40 | mode);
649 ahci_ata_put_xfer(xa);
654 * Fix byte ordering so buffers can be accessed as
658 ata_fix_identify(struct ata_identify *id)
663 swap = (u_int16_t *)id->serial;
664 for (i = 0; i < sizeof(id->serial) / sizeof(u_int16_t); i++)
665 swap[i] = bswap16(swap[i]);
667 swap = (u_int16_t *)id->firmware;
668 for (i = 0; i < sizeof(id->firmware) / sizeof(u_int16_t); i++)
669 swap[i] = bswap16(swap[i]);
671 swap = (u_int16_t *)id->model;
672 for (i = 0; i < sizeof(id->model) / sizeof(u_int16_t); i++)
673 swap[i] = bswap16(swap[i]);
677 * Dummy done callback for xa.
680 ahci_ata_dummy_done(struct ata_xfer *xa)
685 * Use an engineering request to initiate a target scan for devices
686 * behind a port multiplier.
688 * An asynchronous bus scan is used to avoid reentrancy issues.
691 ahci_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb)
693 struct ahci_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr;
695 if (ccb->ccb_h.func_code == XPT_SCAN_BUS) {
696 ap->ap_flags &= ~AP_F_SCAN_RUNNING;
697 if (ap->ap_flags & AP_F_SCAN_REQUESTED) {
698 ap->ap_flags &= ~AP_F_SCAN_REQUESTED;
701 ap->ap_flags |= AP_F_SCAN_COMPLETED;
702 wakeup(&ap->ap_flags);
708 ahci_cam_rescan(struct ahci_port *ap)
710 struct cam_path *path;
715 if (ap->ap_flags & AP_F_SCAN_RUNNING) {
716 ap->ap_flags |= AP_F_SCAN_REQUESTED;
719 ap->ap_flags |= AP_F_SCAN_RUNNING;
720 for (i = 0; i < AHCI_MAX_PMPORTS; ++i) {
721 ap->ap_ata[i]->at_features |= ATA_PORT_F_RESCAN;
724 status = xpt_create_path(&path, xpt_periph, cam_sim_path(ap->ap_sim),
725 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
726 if (status != CAM_REQ_CMP)
729 ccb = xpt_alloc_ccb();
730 xpt_setup_ccb(&ccb->ccb_h, path, 5); /* 5 = low priority */
731 ccb->ccb_h.func_code = XPT_ENG_EXEC;
732 ccb->ccb_h.cbfcnp = ahci_cam_rescan_callback;
733 ccb->ccb_h.sim_priv.entries[0].ptr = ap;
734 ccb->crcn.flags = CAM_FLAG_NONE;
735 xpt_action_async(ccb);
739 ahci_xpt_rescan(struct ahci_port *ap)
741 struct cam_path *path;
745 status = xpt_create_path(&path, xpt_periph, cam_sim_path(ap->ap_sim),
746 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
747 if (status != CAM_REQ_CMP)
750 ccb = xpt_alloc_ccb();
751 xpt_setup_ccb(&ccb->ccb_h, path, 5); /* 5 = low priority */
752 ccb->ccb_h.func_code = XPT_SCAN_BUS;
753 ccb->ccb_h.cbfcnp = ahci_cam_rescan_callback;
754 ccb->ccb_h.sim_priv.entries[0].ptr = ap;
755 ccb->crcn.flags = CAM_FLAG_NONE;
756 xpt_action_async(ccb);
760 * Action function - dispatch command
764 ahci_xpt_action(struct cam_sim *sim, union ccb *ccb)
766 struct ahci_port *ap;
767 struct ata_port *at, *atx;
768 struct ccb_hdr *ccbh;
772 ap = cam_sim_softc(sim);
774 KKASSERT(ap != NULL);
776 unit = cam_sim_unit(sim);
779 * Early failure checks. These checks do not apply to XPT_PATH_INQ,
780 * otherwise the bus rescan will not remove the dead devices when
783 * For non-wildcards we have one target (0) and one lun (0),
784 * unless we have a port multiplier.
786 * A wildcard target indicates only the general bus is being
789 * Calculate at and atx. at is always non-NULL. atx is only
790 * non-NULL for direct-attached devices. It will be NULL for
791 * devices behind a port multiplier.
793 * XXX What do we do with a LUN wildcard?
795 if (ccbh->target_id != CAM_TARGET_WILDCARD &&
796 ccbh->func_code != XPT_PATH_INQ) {
797 if (ap->ap_type == ATA_PORT_T_NONE) {
798 ccbh->status = CAM_DEV_NOT_THERE;
802 if (ccbh->target_id < 0 || ccbh->target_id >= ap->ap_pmcount) {
803 ccbh->status = CAM_DEV_NOT_THERE;
807 at = ap->ap_ata[ccbh->target_id];
808 if (ap->ap_type == ATA_PORT_T_PM)
811 if (ccbh->target_lun != CAM_LUN_WILDCARD && ccbh->target_lun) {
812 ccbh->status = CAM_DEV_NOT_THERE;
821 * Switch on the meta XPT command
823 switch(ccbh->func_code) {
826 * This routine is called after a port multiplier has been
829 ccbh->status = CAM_REQ_CMP;
830 ahci_os_lock_port(ap);
831 ahci_port_state_machine(ap, 0);
832 ahci_os_unlock_port(ap);
838 * This command always succeeds, otherwise the bus scan
839 * will not detach dead devices.
841 ccb->cpi.version_num = 1;
842 ccb->cpi.hba_inquiry = 0;
843 ccb->cpi.target_sprt = 0;
844 ccb->cpi.hba_misc = PIM_SEQSCAN;
845 ccb->cpi.hba_eng_cnt = 0;
846 bzero(ccb->cpi.vuhba_flags, sizeof(ccb->cpi.vuhba_flags));
847 ccb->cpi.max_target = AHCI_MAX_PMPORTS - 1;
848 ccb->cpi.max_lun = 0;
849 ccb->cpi.async_flags = 0;
850 ccb->cpi.hpath_id = 0;
851 ccb->cpi.initiator_id = AHCI_MAX_PMPORTS - 1;
852 ccb->cpi.unit_number = cam_sim_unit(sim);
853 ccb->cpi.bus_id = cam_sim_bus(sim);
854 ccb->cpi.base_transfer_speed = 150000;
855 ccb->cpi.transport = XPORT_SATA;
856 ccb->cpi.transport_version = 1;
857 ccb->cpi.protocol = PROTO_SCSI;
858 ccb->cpi.protocol_version = SCSI_REV_2;
860 ccbh->status = CAM_REQ_CMP;
861 if (ccbh->target_id == CAM_TARGET_WILDCARD) {
862 ahci_os_lock_port(ap);
863 ahci_port_state_machine(ap, 0);
864 ahci_os_unlock_port(ap);
866 switch(ahci_pread(ap, AHCI_PREG_SSTS) &
867 AHCI_PREG_SSTS_SPD) {
868 case AHCI_PREG_SSTS_SPD_GEN1:
869 ccb->cpi.base_transfer_speed = 150000;
871 case AHCI_PREG_SSTS_SPD_GEN2:
872 ccb->cpi.base_transfer_speed = 300000;
876 ccb->cpi.base_transfer_speed = 1000;
880 if (ap->ap_type == ATA_PORT_T_NONE)
881 ccbh->status = CAM_DEV_NOT_THERE;
887 ahci_os_lock_port(ap);
888 if (ap->ap_type == ATA_PORT_T_NONE) {
889 ccbh->status = CAM_DEV_NOT_THERE;
891 ahci_port_reset(ap, atx, 0);
892 ccbh->status = CAM_REQ_CMP;
894 ahci_os_unlock_port(ap);
898 ahci_os_lock_port(ap);
899 ahci_port_reset(ap, NULL, 1);
900 ahci_os_unlock_port(ap);
901 ccbh->status = CAM_REQ_CMP;
904 case XPT_SET_TRAN_SETTINGS:
905 ccbh->status = CAM_FUNC_NOTAVAIL;
908 case XPT_GET_TRAN_SETTINGS:
909 ccb->cts.protocol = PROTO_SCSI;
910 ccb->cts.protocol_version = SCSI_REV_2;
911 ccb->cts.transport = XPORT_SATA;
912 ccb->cts.transport_version = XPORT_VERSION_UNSPECIFIED;
913 ccb->cts.proto_specific.valid = 0;
914 ccb->cts.xport_specific.valid = 0;
915 ccbh->status = CAM_REQ_CMP;
918 case XPT_CALC_GEOMETRY:
919 cam_calc_geometry(&ccb->ccg, 1);
924 * Our parallel startup code might have only probed through
925 * to the IDENT, so do the last step if necessary.
927 if (at->at_probe == ATA_PROBE_NEED_IDENT)
928 ahci_cam_probe(ap, atx);
929 if (at->at_probe != ATA_PROBE_GOOD) {
930 ccbh->status = CAM_DEV_NOT_THERE;
934 switch(at->at_type) {
935 case ATA_PORT_T_DISK:
936 ahci_xpt_scsi_disk_io(ap, atx, ccb);
938 case ATA_PORT_T_ATAPI:
939 ahci_xpt_scsi_atapi_io(ap, atx, ccb);
942 ccbh->status = CAM_REQ_INVALID;
948 ccbh->status = CAM_REQ_INVALID;
957 * Generally this function gets called heavily when interrupts might be
958 * non-operational, during a halt/reboot or panic.
962 ahci_xpt_poll(struct cam_sim *sim)
964 struct ahci_port *ap;
966 ap = cam_sim_softc(sim);
968 ahci_os_lock_port(ap);
969 ahci_port_intr(ap, 1);
970 ahci_os_unlock_port(ap);
975 * Convert the SCSI command in ccb to an ata_xfer command in xa
976 * for ATA_PORT_T_DISK operations. Set the completion function
977 * to convert the response back, then dispatch to the OpenBSD AHCI
980 * AHCI DISK commands only support a limited command set, and we
981 * fake additional commands to make it play nice with the CAM subsystem.
985 ahci_xpt_scsi_disk_io(struct ahci_port *ap, struct ata_port *atx,
988 struct ccb_hdr *ccbh;
989 struct ccb_scsiio *csio;
992 struct ata_fis_h2d *fis;
993 struct ata_pass_12 *atp12;
994 struct ata_pass_16 *atp16;
996 union scsi_data *rdata;
1002 ccbh = &ccb->csio.ccb_h;
1004 at = atx ? atx : ap->ap_ata[0];
1007 * XXX not passing NULL at for direct attach!
1009 xa = ahci_ata_get_xfer(ap, atx);
1010 rdata = (void *)csio->data_ptr;
1011 rdata_len = csio->dxfer_len;
1014 * Build the FIS or process the csio to completion.
1016 cdb = (void *)((ccbh->flags & CAM_CDB_POINTER) ?
1017 csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes);
1019 switch(cdb->generic.opcode) {
1022 * Auto-sense everything, so explicit sense requests
1025 ccbh->status = CAM_SCSI_STATUS_ERROR;
1029 * Inquiry supported features
1031 * [opcode, byte2, page_code, length, control]
1033 if (cdb->inquiry.byte2 & SI_EVPD) {
1034 ahci_xpt_page_inquiry(ap, at, ccb);
1036 bzero(rdata, rdata_len);
1037 if (rdata_len < SHORT_INQUIRY_LENGTH) {
1038 ccbh->status = CAM_CCB_LEN_ERR;
1041 if (rdata_len > sizeof(rdata->inquiry_data))
1042 rdata_len = sizeof(rdata->inquiry_data);
1043 rdata->inquiry_data.device = T_DIRECT;
1044 rdata->inquiry_data.version = SCSI_REV_SPC2;
1045 rdata->inquiry_data.response_format = 2;
1046 rdata->inquiry_data.additional_length = 32;
1047 bcopy("SATA ", rdata->inquiry_data.vendor, 8);
1048 bcopy(at->at_identify.model,
1049 rdata->inquiry_data.product,
1050 sizeof(rdata->inquiry_data.product));
1051 bcopy(at->at_identify.firmware,
1052 rdata->inquiry_data.revision,
1053 sizeof(rdata->inquiry_data.revision));
1054 ccbh->status = CAM_REQ_CMP;
1057 case READ_CAPACITY_16:
1058 if (cdb->read_capacity_16.service_action != SRC16_SERVICE_ACTION) {
1059 ccbh->status = CAM_REQ_INVALID;
1062 if (rdata_len < sizeof(rdata->read_capacity_data_16)) {
1063 ccbh->status = CAM_CCB_LEN_ERR;
1068 if (rdata_len < sizeof(rdata->read_capacity_data)) {
1069 ccbh->status = CAM_CCB_LEN_ERR;
1073 capacity = at->at_capacity;
1075 bzero(rdata, rdata_len);
1076 if (cdb->generic.opcode == READ_CAPACITY) {
1077 rdata_len = sizeof(rdata->read_capacity_data);
1078 if (capacity > 0xFFFFFFFFU)
1079 capacity = 0xFFFFFFFFU;
1080 bzero(&rdata->read_capacity_data, rdata_len);
1081 scsi_ulto4b((u_int32_t)capacity - 1,
1082 rdata->read_capacity_data.addr);
1083 scsi_ulto4b(512, rdata->read_capacity_data.length);
1085 rdata_len = sizeof(rdata->read_capacity_data_16);
1086 bzero(&rdata->read_capacity_data_16, rdata_len);
1087 scsi_u64to8b(capacity - 1,
1088 rdata->read_capacity_data_16.addr);
1089 scsi_ulto4b(512, rdata->read_capacity_data_16.length);
1091 ccbh->status = CAM_REQ_CMP;
1093 case SYNCHRONIZE_CACHE:
1095 * Synchronize cache. Specification says this can take
1096 * greater then 30 seconds so give it at least 45.
1099 fis->flags = ATA_H2D_FLAGS_CMD;
1100 fis->command = ATA_C_FLUSH_CACHE;
1102 if (xa->timeout < 45000)
1103 xa->timeout = 45000;
1106 xa->complete = ahci_ata_complete_disk_synchronize_cache;
1108 case TEST_UNIT_READY:
1109 case START_STOP_UNIT:
1112 * Just silently return success
1114 ccbh->status = CAM_REQ_CMP;
1118 atp12 = &cdb->ata_pass_12;
1121 * Figure out the flags to be used, depending on the direction of the
1124 switch (ccbh->flags & CAM_DIR_MASK) {
1126 xa->flags = ATA_F_READ;
1129 xa->flags = ATA_F_WRITE;
1134 xa->flags |= ATA_F_POLL;
1135 xa->data = csio->data_ptr;
1136 xa->datalen = csio->dxfer_len;
1137 xa->complete = ahci_ata_complete_disk_rw;
1138 xa->timeout = ccbh->timeout;
1141 * Populate the fis from the information we received through CAM
1144 fis->flags = ATA_H2D_FLAGS_CMD; /* maybe also atp12->flags ? */
1145 fis->features = atp12->features;
1146 fis->sector_count = atp12->sector_count;
1147 fis->lba_low = atp12->lba_low;
1148 fis->lba_mid = atp12->lba_mid;
1149 fis->lba_high = atp12->lba_high;
1150 fis->device = atp12->device; /* maybe always 0? */
1151 fis->command = atp12->command;
1152 fis->control = atp12->control;
1155 * Mark as in progress so it is sent to the device.
1157 ccbh->status = CAM_REQ_INPROG;
1160 atp16 = &cdb->ata_pass_16;
1163 * Figure out the flags to be used, depending on the direction of the
1166 switch (ccbh->flags & CAM_DIR_MASK) {
1168 xa->flags = ATA_F_READ;
1171 xa->flags = ATA_F_WRITE;
1176 xa->flags |= ATA_F_POLL;
1177 xa->data = csio->data_ptr;
1178 xa->datalen = csio->dxfer_len;
1179 xa->complete = ahci_ata_complete_disk_rw;
1180 xa->timeout = ccbh->timeout;
1183 * Populate the fis from the information we received through CAM
1186 fis->flags = ATA_H2D_FLAGS_CMD; /* maybe also atp16->flags ? */
1187 fis->features = atp16->features;
1188 fis->features_exp = atp16->features_ext;
1189 fis->sector_count = atp16->sector_count;
1190 fis->sector_count_exp = atp16->sector_count_ext;
1191 fis->lba_low = atp16->lba_low;
1192 fis->lba_low_exp = atp16->lba_low_ext;
1193 fis->lba_mid = atp16->lba_mid;
1194 fis->lba_mid_exp = atp16->lba_mid_ext;
1195 fis->lba_high = atp16->lba_high;
1196 fis->lba_mid_exp = atp16->lba_mid_ext;
1197 fis->device = atp16->device; /* maybe always 0? */
1198 fis->command = atp16->command;
1201 * Mark as in progress so it is sent to the device.
1203 ccbh->status = CAM_REQ_INPROG;
1206 switch(cdb->generic.opcode) {
1208 lba = scsi_3btoul(cdb->rw_6.addr) & 0x1FFFFF;
1209 count = cdb->rw_6.length ? cdb->rw_6.length : 0x100;
1210 xa->flags = ATA_F_READ;
1213 lba = scsi_4btoul(cdb->rw_10.addr);
1214 count = scsi_2btoul(cdb->rw_10.length);
1215 xa->flags = ATA_F_READ;
1218 lba = scsi_4btoul(cdb->rw_12.addr);
1219 count = scsi_4btoul(cdb->rw_12.length);
1220 xa->flags = ATA_F_READ;
1223 lba = scsi_8btou64(cdb->rw_16.addr);
1224 count = scsi_4btoul(cdb->rw_16.length);
1225 xa->flags = ATA_F_READ;
1228 lba = scsi_3btoul(cdb->rw_6.addr) & 0x1FFFFF;
1229 count = cdb->rw_6.length ? cdb->rw_6.length : 0x100;
1230 xa->flags = ATA_F_WRITE;
1233 lba = scsi_4btoul(cdb->rw_10.addr);
1234 count = scsi_2btoul(cdb->rw_10.length);
1235 xa->flags = ATA_F_WRITE;
1238 lba = scsi_4btoul(cdb->rw_12.addr);
1239 count = scsi_4btoul(cdb->rw_12.length);
1240 xa->flags = ATA_F_WRITE;
1243 lba = scsi_8btou64(cdb->rw_16.addr);
1244 count = scsi_4btoul(cdb->rw_16.length);
1245 xa->flags = ATA_F_WRITE;
1248 ccbh->status = CAM_REQ_INVALID;
1251 if (ccbh->status != CAM_REQ_INPROG)
1255 fis->flags = ATA_H2D_FLAGS_CMD;
1256 fis->lba_low = (u_int8_t)lba;
1257 fis->lba_mid = (u_int8_t)(lba >> 8);
1258 fis->lba_high = (u_int8_t)(lba >> 16);
1259 fis->device = ATA_H2D_DEVICE_LBA;
1262 * NCQ only for direct-attached disks, do not currently
1263 * try to use NCQ with port multipliers.
1265 if (at->at_ncqdepth > 1 &&
1266 ap->ap_type == ATA_PORT_T_DISK &&
1267 (ap->ap_sc->sc_cap & AHCI_REG_CAP_SNCQ) &&
1268 (ccbh->flags & CAM_POLLED) == 0) {
1270 * Use NCQ - always uses 48 bit addressing
1272 xa->flags |= ATA_F_NCQ;
1273 fis->command = (xa->flags & ATA_F_WRITE) ?
1274 ATA_C_WRITE_FPDMA : ATA_C_READ_FPDMA;
1275 fis->lba_low_exp = (u_int8_t)(lba >> 24);
1276 fis->lba_mid_exp = (u_int8_t)(lba >> 32);
1277 fis->lba_high_exp = (u_int8_t)(lba >> 40);
1278 fis->sector_count = xa->tag << 3;
1279 fis->features = (u_int8_t)count;
1280 fis->features_exp = (u_int8_t)(count >> 8);
1281 } else if (count > 0x100 || lba > 0x0FFFFFFFU) {
1285 fis->command = (xa->flags & ATA_F_WRITE) ?
1286 ATA_C_WRITEDMA_EXT : ATA_C_READDMA_EXT;
1287 fis->lba_low_exp = (u_int8_t)(lba >> 24);
1288 fis->lba_mid_exp = (u_int8_t)(lba >> 32);
1289 fis->lba_high_exp = (u_int8_t)(lba >> 40);
1290 fis->sector_count = (u_int8_t)count;
1291 fis->sector_count_exp = (u_int8_t)(count >> 8);
1296 * NOTE: 256 sectors is supported, stored as 0.
1298 fis->command = (xa->flags & ATA_F_WRITE) ?
1299 ATA_C_WRITEDMA : ATA_C_READDMA;
1300 fis->device |= (u_int8_t)(lba >> 24) & 0x0F;
1301 fis->sector_count = (u_int8_t)count;
1304 xa->data = csio->data_ptr;
1305 xa->datalen = csio->dxfer_len;
1306 xa->complete = ahci_ata_complete_disk_rw;
1307 xa->timeout = ccbh->timeout; /* milliseconds */
1309 if (xa->timeout > 10000) /* XXX - debug */
1310 xa->timeout = 10000;
1312 if (ccbh->flags & CAM_POLLED)
1313 xa->flags |= ATA_F_POLL;
1318 * If the request is still in progress the xa and FIS have
1319 * been set up (except for the PM target), and must be dispatched.
1320 * Otherwise the request was completed.
1322 if (ccbh->status == CAM_REQ_INPROG) {
1323 KKASSERT(xa->complete != NULL);
1324 xa->atascsi_private = ccb;
1325 ccb->ccb_h.sim_priv.entries[0].ptr = ap;
1326 ahci_os_lock_port(ap);
1327 xa->fis->flags |= at->at_target;
1329 ahci_os_unlock_port(ap);
1331 ahci_ata_put_xfer(xa);
1337 * Convert the SCSI command in ccb to an ata_xfer command in xa
1338 * for ATA_PORT_T_ATAPI operations. Set the completion function
1339 * to convert the response back, then dispatch to the OpenBSD AHCI
1344 ahci_xpt_scsi_atapi_io(struct ahci_port *ap, struct ata_port *atx,
1347 struct ccb_hdr *ccbh;
1348 struct ccb_scsiio *csio;
1349 struct ata_xfer *xa;
1350 struct ata_fis_h2d *fis;
1354 struct ata_port *at;
1356 ccbh = &ccb->csio.ccb_h;
1358 at = atx ? atx : ap->ap_ata[0];
1360 switch (ccbh->flags & CAM_DIR_MASK) {
1362 flags = ATA_F_PACKET | ATA_F_READ;
1365 flags = ATA_F_PACKET | ATA_F_WRITE;
1368 flags = ATA_F_PACKET;
1371 ccbh->status = CAM_REQ_INVALID;
1378 * Special handling to get the rfis back into host memory while
1379 * still allowing the chip to run commands in parallel to
1380 * ATAPI devices behind a PM.
1382 flags |= ATA_F_AUTOSENSE;
1385 * The command has to fit in the packet command buffer.
1387 if (csio->cdb_len < 6 || csio->cdb_len > 16) {
1388 ccbh->status = CAM_CCB_LEN_ERR;
1394 * Initialize the XA and FIS. It is unclear how much of
1395 * this has to mimic the equivalent ATA command.
1397 * XXX not passing NULL at for direct attach!
1399 xa = ahci_ata_get_xfer(ap, atx);
1402 fis->flags = ATA_H2D_FLAGS_CMD | at->at_target;
1403 fis->command = ATA_C_PACKET;
1404 fis->device = ATA_H2D_DEVICE_LBA;
1405 fis->sector_count = xa->tag << 3;
1406 if (flags & (ATA_F_READ | ATA_F_WRITE)) {
1407 if (flags & ATA_F_WRITE) {
1408 fis->features = ATA_H2D_FEATURES_DMA |
1409 ATA_H2D_FEATURES_DIR_WRITE;
1411 fis->features = ATA_H2D_FEATURES_DMA |
1412 ATA_H2D_FEATURES_DIR_READ;
1418 fis->control = ATA_FIS_CONTROL_4BIT;
1421 xa->data = csio->data_ptr;
1422 xa->datalen = csio->dxfer_len;
1423 xa->timeout = ccbh->timeout; /* milliseconds */
1425 if (ccbh->flags & CAM_POLLED)
1426 xa->flags |= ATA_F_POLL;
1429 * Copy the cdb to the packetcmd buffer in the FIS using a
1430 * convenient pointer in the xa.
1432 * Zero-out any trailing bytes in case the ATAPI device cares.
1434 cdbs = (void *)((ccbh->flags & CAM_CDB_POINTER) ?
1435 csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes);
1436 bcopy(cdbs, xa->packetcmd, csio->cdb_len);
1437 if (csio->cdb_len < 16)
1438 bzero(xa->packetcmd + csio->cdb_len, 16 - csio->cdb_len);
1441 kprintf("opcode %d cdb_len %d dxfer_len %d\n",
1442 cdbs->generic.opcode,
1443 csio->cdb_len, csio->dxfer_len);
1447 * Some ATAPI commands do not actually follow the SCSI standard.
1449 cdbd = (void *)xa->packetcmd;
1451 switch(cdbd->generic.opcode) {
1454 * Force SENSE requests to the ATAPI sense length.
1456 * It is unclear if this is needed or not.
1458 if (cdbd->sense.length == SSD_FULL_SIZE) {
1460 kprintf("%s: Shortening sense request\n",
1463 cdbd->sense.length = offsetof(struct scsi_sense_data,
1469 * Some ATAPI devices can't handle long inquiry lengths,
1470 * don't ask me why. Truncate the inquiry length.
1472 if (cdbd->inquiry.page_code == 0 &&
1473 cdbd->inquiry.length > SHORT_INQUIRY_LENGTH) {
1474 cdbd->inquiry.length = SHORT_INQUIRY_LENGTH;
1480 * Convert *_6 to *_10 commands. Most ATAPI devices
1481 * cannot handle the SCSI READ_6 and WRITE_6 commands.
1483 cdbd->rw_10.opcode |= 0x20;
1484 cdbd->rw_10.byte2 = 0;
1485 cdbd->rw_10.addr[0] = cdbs->rw_6.addr[0] & 0x1F;
1486 cdbd->rw_10.addr[1] = cdbs->rw_6.addr[1];
1487 cdbd->rw_10.addr[2] = cdbs->rw_6.addr[2];
1488 cdbd->rw_10.addr[3] = 0;
1489 cdbd->rw_10.reserved = 0;
1490 cdbd->rw_10.length[0] = 0;
1491 cdbd->rw_10.length[1] = cdbs->rw_6.length;
1492 cdbd->rw_10.control = cdbs->rw_6.control;
1501 xa->complete = ahci_atapi_complete_cmd;
1502 xa->atascsi_private = ccb;
1503 ccb->ccb_h.sim_priv.entries[0].ptr = ap;
1504 ahci_os_lock_port(ap);
1506 ahci_os_unlock_port(ap);
1510 * Simulate page inquiries for disk attachments.
1514 ahci_xpt_page_inquiry(struct ahci_port *ap, struct ata_port *at, union ccb *ccb)
1517 struct scsi_vpd_supported_page_list list;
1518 struct scsi_vpd_unit_serial_number serno;
1519 struct scsi_vpd_unit_devid devid;
1527 page = kmalloc(sizeof(*page), M_DEVBUF, M_WAITOK | M_ZERO);
1529 cdb = (void *)((ccb->ccb_h.flags & CAM_CDB_POINTER) ?
1530 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes);
1532 switch(cdb->inquiry.page_code) {
1533 case SVPD_SUPPORTED_PAGE_LIST:
1535 page->list.device = T_DIRECT;
1536 page->list.page_code = SVPD_SUPPORTED_PAGE_LIST;
1537 page->list.list[i++] = SVPD_SUPPORTED_PAGE_LIST;
1538 page->list.list[i++] = SVPD_UNIT_SERIAL_NUMBER;
1539 page->list.list[i++] = SVPD_UNIT_DEVID;
1540 page->list.length = i;
1541 len = offsetof(struct scsi_vpd_supported_page_list, list[3]);
1543 case SVPD_UNIT_SERIAL_NUMBER:
1545 j = sizeof(at->at_identify.serial);
1546 for (i = 0; i < j && at->at_identify.serial[i] == ' '; ++i)
1548 while (j > i && at->at_identify.serial[j-1] == ' ')
1550 page->serno.device = T_DIRECT;
1551 page->serno.page_code = SVPD_UNIT_SERIAL_NUMBER;
1552 page->serno.length = j - i;
1553 bcopy(at->at_identify.serial + i,
1554 page->serno.serial_num, j - i);
1555 len = offsetof(struct scsi_vpd_unit_serial_number,
1558 case SVPD_UNIT_DEVID:
1559 /* fall through for now */
1561 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
1565 if (ccb->ccb_h.status == CAM_REQ_INPROG) {
1566 if (len <= ccb->csio.dxfer_len) {
1567 ccb->ccb_h.status = CAM_REQ_CMP;
1568 bzero(ccb->csio.data_ptr, ccb->csio.dxfer_len);
1569 bcopy(page, ccb->csio.data_ptr, len);
1570 ccb->csio.resid = ccb->csio.dxfer_len - len;
1572 ccb->ccb_h.status = CAM_CCB_LEN_ERR;
1575 kfree(page, M_DEVBUF);
1579 * Completion function for ATA_PORT_T_DISK cache synchronization.
1583 ahci_ata_complete_disk_synchronize_cache(struct ata_xfer *xa)
1585 union ccb *ccb = xa->atascsi_private;
1586 struct ccb_hdr *ccbh = &ccb->ccb_h;
1587 struct ahci_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr;
1590 case ATA_S_COMPLETE:
1591 ccbh->status = CAM_REQ_CMP;
1592 ccb->csio.scsi_status = SCSI_STATUS_OK;
1595 kprintf("%s: synchronize_cache: error\n",
1596 ATANAME(ap, xa->at));
1597 ccbh->status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
1598 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
1599 ahci_ata_dummy_sense(&ccb->csio.sense_data);
1602 kprintf("%s: synchronize_cache: timeout\n",
1603 ATANAME(ap, xa->at));
1604 ccbh->status = CAM_CMD_TIMEOUT;
1607 kprintf("%s: synchronize_cache: unknown state %d\n",
1608 ATANAME(ap, xa->at), xa->state);
1609 ccbh->status = CAM_REQ_CMP_ERR;
1612 ahci_ata_put_xfer(xa);
1613 ahci_os_unlock_port(ap);
1615 ahci_os_lock_port(ap);
1619 * Completion function for ATA_PORT_T_DISK I/O
1623 ahci_ata_complete_disk_rw(struct ata_xfer *xa)
1625 union ccb *ccb = xa->atascsi_private;
1626 struct ccb_hdr *ccbh = &ccb->ccb_h;
1627 struct ahci_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr;
1630 case ATA_S_COMPLETE:
1631 ccbh->status = CAM_REQ_CMP;
1632 ccb->csio.scsi_status = SCSI_STATUS_OK;
1635 kprintf("%s: disk_rw: error\n", ATANAME(ap, xa->at));
1636 ccbh->status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
1637 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
1638 ahci_ata_dummy_sense(&ccb->csio.sense_data);
1641 kprintf("%s: disk_rw: timeout\n", ATANAME(ap, xa->at));
1642 ccbh->status = CAM_CMD_TIMEOUT;
1643 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
1644 ahci_ata_dummy_sense(&ccb->csio.sense_data);
1647 kprintf("%s: disk_rw: unknown state %d\n",
1648 ATANAME(ap, xa->at), xa->state);
1649 ccbh->status = CAM_REQ_CMP_ERR;
1652 ccb->csio.resid = xa->resid;
1653 ahci_ata_put_xfer(xa);
1654 ahci_os_unlock_port(ap);
1656 ahci_os_lock_port(ap);
1660 * Completion function for ATA_PORT_T_ATAPI I/O
1662 * Sense data is returned in the rfis.
1666 ahci_atapi_complete_cmd(struct ata_xfer *xa)
1668 union ccb *ccb = xa->atascsi_private;
1669 struct ccb_hdr *ccbh = &ccb->ccb_h;
1670 struct ahci_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr;
1673 cdb = (void *)((ccb->ccb_h.flags & CAM_CDB_POINTER) ?
1674 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes);
1677 case ATA_S_COMPLETE:
1678 ccbh->status = CAM_REQ_CMP;
1679 ccb->csio.scsi_status = SCSI_STATUS_OK;
1682 ccbh->status = CAM_SCSI_STATUS_ERROR;
1683 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
1684 ahci_ata_atapi_sense(&xa->rfis, &ccb->csio.sense_data);
1687 kprintf("%s: cmd %d: timeout\n",
1688 PORTNAME(ap), cdb->generic.opcode);
1689 ccbh->status = CAM_CMD_TIMEOUT;
1690 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
1691 ahci_ata_dummy_sense(&ccb->csio.sense_data);
1694 kprintf("%s: cmd %d: unknown state %d\n",
1695 PORTNAME(ap), cdb->generic.opcode, xa->state);
1696 ccbh->status = CAM_REQ_CMP_ERR;
1699 ccb->csio.resid = xa->resid;
1700 ahci_ata_put_xfer(xa);
1701 ahci_os_unlock_port(ap);
1703 ahci_os_lock_port(ap);
1707 * Construct dummy sense data for errors on DISKs
1711 ahci_ata_dummy_sense(struct scsi_sense_data *sense_data)
1713 sense_data->error_code = SSD_ERRCODE_VALID | SSD_CURRENT_ERROR;
1714 sense_data->segment = 0;
1715 sense_data->flags = SSD_KEY_MEDIUM_ERROR;
1716 sense_data->info[0] = 0;
1717 sense_data->info[1] = 0;
1718 sense_data->info[2] = 0;
1719 sense_data->info[3] = 0;
1720 sense_data->extra_len = 0;
1724 * Construct atapi sense data for errors on ATAPI
1726 * The ATAPI sense data is stored in the passed rfis and must be converted
1727 * to SCSI sense data.
1731 ahci_ata_atapi_sense(struct ata_fis_d2h *rfis,
1732 struct scsi_sense_data *sense_data)
1734 sense_data->error_code = SSD_ERRCODE_VALID | SSD_CURRENT_ERROR;
1735 sense_data->segment = 0;
1736 sense_data->flags = (rfis->error & 0xF0) >> 4;
1737 if (rfis->error & 0x04)
1738 sense_data->flags |= SSD_KEY_ILLEGAL_REQUEST;
1739 if (rfis->error & 0x02)
1740 sense_data->flags |= SSD_EOM;
1741 if (rfis->error & 0x01)
1742 sense_data->flags |= SSD_ILI;
1743 sense_data->info[0] = 0;
1744 sense_data->info[1] = 0;
1745 sense_data->info[2] = 0;
1746 sense_data->info[3] = 0;
1747 sense_data->extra_len = 0;
1752 ahci_strip_string(const char **basep, int *lenp)
1754 const char *base = *basep;
1757 while (len && (*base == 0 || *base == ' ')) {
1761 while (len && (base[len-1] == 0 || base[len-1] == ' '))