2 * Copyright (c) 2007 Scott Long
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions, and the following disclaimer,
10 * without modification, immediately at the beginning of the file.
11 * 2. The name of the author may not be used to endorse or promote products
12 * derived from this software without specific prior written permission.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
18 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * scsi_sg peripheral driver. This driver is meant to implement the Linux
29 * SG passthrough interface for SCSI.
33 #include <sys/param.h>
34 #include <sys/systm.h>
35 #include <sys/kernel.h>
36 #include <sys/types.h>
38 #include <sys/malloc.h>
39 #include <sys/fcntl.h>
40 #include <sys/ioccom.h>
41 #include <sys/errno.h>
42 #include <sys/devicestat.h>
45 #include <sys/device.h>
46 #include <sys/sysmsg.h>
49 #include "../cam_ccb.h"
50 #include "../cam_periph.h"
51 #include "../cam_queue.h"
52 #include "../cam_xpt_periph.h"
53 #include "../cam_debug.h"
54 #include "../cam_sim.h"
56 #include <emulation/linux/linux_ioctl.h>
59 #include "scsi_message.h"
64 SG_FLAG_LOCKED = 0x02,
65 SG_FLAG_INVALID = 0x04
83 #define ccb_type ppriv_field0
84 #define ccb_rdwr ppriv_ptr1
87 TAILQ_ENTRY(sg_rdwr) rdwr_link;
95 struct sg_io_hdr io_hdr;
102 struct devstat device_stats;
103 TAILQ_HEAD(, sg_rdwr) rdwr_done;
111 static d_open_t sgopen;
112 static d_close_t sgclose;
113 static d_ioctl_t sgioctl;
114 static d_write_t sgwrite;
115 static d_read_t sgread;
117 static periph_init_t sginit;
118 static periph_ctor_t sgregister;
119 static periph_oninv_t sgoninvalidate;
120 static periph_dtor_t sgcleanup;
121 static periph_start_t sgstart;
122 static void sgasync(void *callback_arg, uint32_t code,
123 struct cam_path *path, void *arg);
124 static void sgdone(struct cam_periph *periph, union ccb *done_ccb);
125 static int sgsendccb(struct cam_periph *periph, union ccb *ccb);
126 static int sgsendrdwr(struct cam_periph *periph, union ccb *ccb);
127 static int sgerror(union ccb *ccb, uint32_t cam_flags,
128 uint32_t sense_flags);
129 static void sg_scsiio_status(struct ccb_scsiio *csio,
130 u_short *hoststat, u_short *drvstat);
132 static int scsi_group_len(u_char cmd);
134 static struct periph_driver sgdriver =
137 TAILQ_HEAD_INITIALIZER(sgdriver.units), /* gen */ 0
139 PERIPHDRIVER_DECLARE(sg, sgdriver);
141 static struct dev_ops sg_ops = {
150 static int sg_version = 30125;
158 * Install a global async callback. This callback will receive aync
159 * callbacks like "new device found".
161 status = xpt_register_async(AC_FOUND_DEVICE, sgasync, NULL, NULL);
163 if (status != CAM_REQ_CMP) {
164 kprintf("sg: Failed to attach master async callbac "
165 "due to status 0x%x!\n", status);
170 sgoninvalidate(struct cam_periph *periph)
172 struct sg_softc *softc;
174 softc = (struct sg_softc *)periph->softc;
177 * Deregister any async callbacks.
179 xpt_register_async(0, sgasync, periph, periph->path);
181 softc->flags |= SG_FLAG_INVALID;
184 * XXX Return all queued I/O with ENXIO.
185 * XXX Handle any transactions queued to the card
186 * with XPT_ABORT_CCB.
190 xpt_print(periph->path, "lost device\n");
195 sgcleanup(struct cam_periph *periph)
197 struct sg_softc *softc;
199 softc = (struct sg_softc *)periph->softc;
201 xpt_print(periph->path, "removing device entry\n");
202 devstat_remove_entry(&softc->device_stats);
203 cam_periph_unlock(periph);
204 destroy_dev(softc->dev);
205 cam_periph_lock(periph);
206 kfree(softc, M_DEVBUF);
210 sgasync(void *callback_arg, uint32_t code, struct cam_path *path, void *arg)
212 struct cam_periph *periph;
214 periph = (struct cam_periph *)callback_arg;
217 case AC_FOUND_DEVICE:
219 struct ccb_getdev *cgd;
222 cgd = (struct ccb_getdev *)arg;
227 if (cgd->protocol != PROTO_SCSI)
232 * Allocate a peripheral instance for this device and
233 * start the probe process.
235 status = cam_periph_alloc(sgregister, sgoninvalidate,
237 "sg", CAM_PERIPH_BIO, cgd->ccb_h.path,
238 sgasync, AC_FOUND_DEVICE, cgd);
239 if ((status != CAM_REQ_CMP) && (status != CAM_REQ_INPROG)) {
240 const struct cam_status_entry *entry;
242 entry = cam_fetch_status_entry(status);
243 kprintf("sgasync: Unable to attach new device "
244 "due to status %#x: %s\n", status, entry ?
245 entry->status_text : "Unknown");
250 cam_periph_async(periph, code, path, arg);
256 sgregister(struct cam_periph *periph, void *arg)
258 struct sg_softc *softc;
259 struct ccb_getdev *cgd;
262 cgd = (struct ccb_getdev *)arg;
263 if (periph == NULL) {
264 kprintf("sgregister: periph was NULL!!\n");
265 return (CAM_REQ_CMP_ERR);
269 kprintf("sgregister: no getdev CCB, can't register device\n");
270 return (CAM_REQ_CMP_ERR);
273 softc = kmalloc(sizeof(*softc), M_DEVBUF, M_WAITOK | M_ZERO);
274 softc->state = SG_STATE_NORMAL;
275 softc->pd_type = SID_TYPE(&cgd->inq_data);
276 softc->sg_timeout = SG_DEFAULT_TIMEOUT / SG_DEFAULT_HZ * hz;
277 softc->sg_user_timeout = SG_DEFAULT_TIMEOUT;
278 TAILQ_INIT(&softc->rdwr_done);
279 periph->softc = softc;
282 * We pass in 0 for all blocksize, since we don't know what the
283 * blocksize of the device is, if it even has a blocksize.
285 cam_periph_unlock(periph);
286 no_tags = (cgd->inq_data.flags & SID_CmdQue) == 0;
287 devstat_add_entry(&softc->device_stats, "sg",
288 periph->unit_number, 0,
289 DEVSTAT_NO_BLOCKSIZE |
290 (no_tags ? DEVSTAT_NO_ORDERED_TAGS : 0),
292 DEVSTAT_TYPE_IF_SCSI | DEVSTAT_PRIORITY_PASS,
293 DEVSTAT_PRIORITY_PASS);
295 /* Register the device */
296 softc->dev = make_dev(&sg_ops, periph->unit_number,
297 UID_ROOT, GID_OPERATOR, 0600, "%s%d",
298 periph->periph_name, periph->unit_number);
299 make_dev_alias(softc->dev, "sg%c", 'a' + periph->unit_number);
300 cam_periph_lock(periph);
301 softc->dev->si_drv1 = periph;
304 * Add as async callback so that we get
305 * notified if this device goes away.
307 xpt_register_async(AC_LOST_DEVICE, sgasync, periph, periph->path);
310 xpt_announce_periph(periph, NULL);
312 return (CAM_REQ_CMP);
316 sgstart(struct cam_periph *periph, union ccb *start_ccb)
318 struct sg_softc *softc;
320 softc = (struct sg_softc *)periph->softc;
322 switch (softc->state) {
323 case SG_STATE_NORMAL:
324 start_ccb->ccb_h.ccb_type = SG_CCB_WAITING;
325 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
327 periph->immediate_priority = CAM_PRIORITY_NONE;
328 wakeup(&periph->ccb_list);
334 sgdone(struct cam_periph *periph, union ccb *done_ccb)
336 struct sg_softc *softc;
337 struct ccb_scsiio *csio;
339 softc = (struct sg_softc *)periph->softc;
340 csio = &done_ccb->csio;
341 switch (csio->ccb_h.ccb_type) {
343 /* Caller will release the CCB */
344 wakeup(&done_ccb->ccb_h.cbfcnp);
348 struct sg_rdwr *rdwr;
351 devstat_end_transaction(
352 &softc->device_stats,
354 csio->tag_action & 0xf,
355 ((csio->ccb_h.flags & CAM_DIR_MASK) ==
356 CAM_DIR_NONE) ? DEVSTAT_NO_DATA :
357 ((csio->ccb_h.flags & CAM_DIR_OUT) ?
358 DEVSTAT_WRITE : DEVSTAT_READ));
360 rdwr = done_ccb->ccb_h.ccb_rdwr;
362 rdwr->state = SG_RDWR_DONE;
367 panic("unknown sg CCB type");
372 sgopen(struct dev_open_args *ap)
373 /*cdev_t dev, int flags, int fmt, struct thread *td)*/
375 struct cam_periph *periph;
376 struct sg_softc *softc;
379 periph = (struct cam_periph *)ap->a_head.a_dev->si_drv1;
384 * Don't allow access when we're running at a high securelevel.
386 if (securelevel > 1) {
387 cam_periph_unlock(periph);
388 cam_periph_release(periph);
391 cam_periph_lock(periph);
393 softc = (struct sg_softc *)periph->softc;
394 if (softc->flags & SG_FLAG_INVALID) {
395 cam_periph_unlock(periph);
399 if ((softc->flags & SG_FLAG_OPEN) == 0) {
400 softc->flags |= SG_FLAG_OPEN;
401 cam_periph_unlock(periph);
403 /* Device closes aren't symmetrical, fix up the refcount. */
404 cam_periph_unlock(periph);
405 cam_periph_release(periph);
412 sgclose(struct dev_close_args *ap)
413 /* cdev_t dev, int flag, int fmt, struct thread *td) */
415 struct cam_periph *periph;
416 struct sg_softc *softc;
418 periph = (struct cam_periph *)ap->a_head.a_dev->si_drv1;
422 cam_periph_lock(periph);
424 softc = (struct sg_softc *)periph->softc;
425 softc->flags &= ~SG_FLAG_OPEN;
427 cam_periph_unlock(periph);
428 cam_periph_release(periph);
434 sgioctl(struct dev_ioctl_args *ap)
435 /* cdev_t dev, u_long cmd, caddr_t arg, int flag, struct thread *td) */
438 struct ccb_scsiio *csio;
439 struct cam_periph *periph;
440 struct sg_softc *softc;
441 struct sg_io_hdr req;
444 periph = (struct cam_periph *)ap->a_head.a_dev->si_drv1;
448 cam_periph_lock(periph);
450 softc = (struct sg_softc *)periph->softc;
454 case LINUX_SCSI_GET_BUS_NUMBER: {
457 busno = xpt_path_path_id(periph->path);
458 error = copyout(&busno, ap->a_data, sizeof(busno));
461 case LINUX_SCSI_GET_IDLUN: {
462 struct scsi_idlun idlun;
465 idlun.dev_id = xpt_path_target_id(periph->path);
466 sim = xpt_path_sim(periph->path);
467 idlun.host_unique_id = sim->unit_number;
468 error = copyout(&idlun, ap->a_data, sizeof(idlun));
471 case SG_GET_VERSION_NUM:
472 case LINUX_SG_GET_VERSION_NUM:
473 error = copyout(&sg_version, ap->a_data, sizeof(sg_version));
476 case LINUX_SG_SET_TIMEOUT: {
479 error = copyin(ap->a_data, &user_timeout, sizeof(u_int));
481 softc->sg_user_timeout = user_timeout;
482 softc->sg_timeout = user_timeout / SG_DEFAULT_HZ * hz;
487 case LINUX_SG_GET_TIMEOUT:
489 * The value is returned directly to the syscall.
491 ap->a_sysmsg->sm_result.iresult = softc->sg_user_timeout;
496 error = copyin(ap->a_data, &req, sizeof(req));
500 if (req.cmd_len > IOCDBLEN) {
505 if (req.iovec_count != 0) {
510 ccb = cam_periph_getccb(periph, /*priority*/5);
513 error = copyin(req.cmdp, &csio->cdb_io.cdb_bytes,
516 xpt_release_ccb(ccb);
520 switch(req.dxfer_direction) {
521 case SG_DXFER_TO_DEV:
524 case SG_DXFER_FROM_DEV:
527 case SG_DXFER_TO_FROM_DEV:
528 dir = CAM_DIR_IN | CAM_DIR_OUT;
547 error = sgsendccb(periph, ccb);
549 req.host_status = DID_ERROR;
550 req.driver_status = DRIVER_INVALID;
551 xpt_release_ccb(ccb);
555 req.status = csio->scsi_status;
556 req.masked_status = (csio->scsi_status >> 1) & 0x7f;
557 sg_scsiio_status(csio, &req.host_status, &req.driver_status);
558 req.resid = csio->resid;
559 req.duration = csio->ccb_h.timeout;
562 error = copyout(&req, ap->a_data, sizeof(req));
563 if ((error == 0) && (csio->ccb_h.status & CAM_AUTOSNS_VALID)
564 && (req.sbp != NULL)) {
565 req.sb_len_wr = req.mx_sb_len - csio->sense_resid;
566 error = copyout(&csio->sense_data, req.sbp,
570 xpt_release_ccb(ccb);
573 case SG_GET_RESERVED_SIZE:
574 case LINUX_SG_GET_RESERVED_SIZE: {
577 error = copyout(&size, ap->a_data, sizeof(size));
582 case LINUX_SG_GET_SCSI_ID:
584 struct sg_scsi_id id;
586 id.host_no = 0; /* XXX */
587 id.channel = xpt_path_path_id(periph->path);
588 id.scsi_id = xpt_path_target_id(periph->path);
589 id.lun = xpt_path_lun_id(periph->path);
590 id.scsi_type = softc->pd_type;
591 id.h_cmd_per_lun = 1;
592 id.d_queue_depth = 1;
596 error = copyout(&id, ap->a_data, sizeof(id));
600 case SG_EMULATED_HOST:
601 case SG_SET_TRANSFORM:
602 case SG_GET_TRANSFORM:
603 case SG_GET_NUM_WAITING:
605 case SG_GET_REQUEST_TABLE:
606 case SG_SET_KEEP_ORPHAN:
607 case SG_GET_KEEP_ORPHAN:
608 case SG_GET_ACCESS_COUNT:
609 case SG_SET_FORCE_LOW_DMA:
611 case SG_GET_SG_TABLESIZE:
612 case SG_SET_FORCE_PACK_ID:
614 case SG_SET_RESERVED_SIZE:
615 case SG_GET_COMMAND_Q:
616 case SG_SET_COMMAND_Q:
618 case SG_NEXT_CMD_LEN:
619 case LINUX_SG_EMULATED_HOST:
620 case LINUX_SG_SET_TRANSFORM:
621 case LINUX_SG_GET_TRANSFORM:
622 case LINUX_SG_GET_NUM_WAITING:
623 case LINUX_SG_SCSI_RESET:
624 case LINUX_SG_GET_REQUEST_TABLE:
625 case LINUX_SG_SET_KEEP_ORPHAN:
626 case LINUX_SG_GET_KEEP_ORPHAN:
627 case LINUX_SG_GET_ACCESS_COUNT:
628 case LINUX_SG_SET_FORCE_LOW_DMA:
629 case LINUX_SG_GET_LOW_DMA:
630 case LINUX_SG_GET_SG_TABLESIZE:
631 case LINUX_SG_SET_FORCE_PACK_ID:
632 case LINUX_SG_GET_PACK_ID:
633 case LINUX_SG_SET_RESERVED_SIZE:
634 case LINUX_SG_GET_COMMAND_Q:
635 case LINUX_SG_SET_COMMAND_Q:
636 case LINUX_SG_SET_DEBUG:
637 case LINUX_SG_NEXT_CMD_LEN:
640 kprintf("sgioctl: rejecting cmd 0x%lx\n", ap->a_cmd);
646 cam_periph_unlock(periph);
651 sgwrite(struct dev_write_args *ap)
652 /*cdev_t dev, struct uio *uio, int ioflag)*/
655 struct cam_periph *periph;
656 struct ccb_scsiio *csio;
658 struct sg_header *hdr;
659 struct sg_rdwr *rdwr;
662 int error = 0, cdb_len, buf_len, dir;
663 struct uio *uio = ap->a_uio;
665 periph = ap->a_head.a_dev->si_drv1;
666 rdwr = kmalloc(sizeof(*rdwr), M_DEVBUF, M_WAITOK | M_ZERO);
667 hdr = &rdwr->hdr.hdr;
669 /* Copy in the header block and sanity check it */
670 if (uio->uio_resid < sizeof(*hdr)) {
674 error = uiomove((char *)hdr, sizeof(*hdr), uio);
678 ccb = xpt_alloc_ccb();
686 * Copy in the CDB block. The designers of the interface didn't
687 * bother to provide a size for this in the header, so we have to
688 * figure it out ourselves.
690 if (uio->uio_resid < 1)
692 error = uiomove(&cdb_cmd, 1, uio);
695 if (hdr->twelve_byte)
698 cdb_len = scsi_group_len(cdb_cmd);
700 * We've already read the first byte of the CDB and advanced the uio
701 * pointer. Just read the rest.
703 csio->cdb_io.cdb_bytes[0] = cdb_cmd;
704 error = uiomove(&csio->cdb_io.cdb_bytes[1], cdb_len - 1, uio);
709 * Now set up the data block. Again, the designers didn't bother
710 * to make this reliable.
712 buf_len = uio->uio_resid;
714 buf = kmalloc(buf_len, M_DEVBUF, M_WAITOK | M_ZERO);
715 error = uiomove(buf, buf_len, uio);
719 } else if (hdr->reply_len != 0) {
720 buf = kmalloc(hdr->reply_len, M_DEVBUF, M_WAITOK | M_ZERO);
721 buf_len = hdr->reply_len;
729 cam_periph_lock(periph);
731 xpt_setup_ccb(&ccb->ccb_h, periph->path, /*priority*/5);
744 * Send off the command and hope that it works. This path does not
745 * go through sgstart because the I/O is supposed to be asynchronous.
748 rdwr->buf_len = buf_len;
749 rdwr->tag = hdr->pack_id;
751 rdwr->state = SG_RDWR_INPROG;
752 ccb->ccb_h.ccb_rdwr = rdwr;
753 ccb->ccb_h.ccb_type = SG_CCB_RDWR_IO;
754 TAILQ_INSERT_TAIL(&sc->rdwr_done, rdwr, rdwr_link);
755 error = sgsendrdwr(periph, ccb);
756 cam_periph_unlock(periph);
760 kfree(buf, M_DEVBUF);
764 kfree(rdwr, M_DEVBUF);
769 sgread(struct dev_read_args *ap)
770 /*cdev_t dev, struct uio *uio, int ioflag)*/
772 struct ccb_scsiio *csio;
773 struct cam_periph *periph;
775 struct sg_header *hdr;
776 struct sg_rdwr *rdwr;
777 u_short hstat, dstat;
778 int error, pack_len, reply_len, pack_id;
779 struct uio *uio = ap->a_uio;
781 periph = ap->a_head.a_dev->si_drv1;
783 /* XXX The pack len field needs to be updated and written out instead
784 * of discarded. Not sure how to do that.
786 uio->uio_rw = UIO_WRITE;
787 if ((error = uiomove((char *)&pack_len, 4, uio)) != 0)
789 if ((error = uiomove((char *)&reply_len, 4, uio)) != 0)
791 if ((error = uiomove((char *)&pack_id, 4, uio)) != 0)
793 uio->uio_rw = UIO_READ;
795 cam_periph_lock(periph);
798 TAILQ_FOREACH(rdwr, &sc->rdwr_done, rdwr_link) {
799 if (rdwr->tag == pack_id)
803 cam_periph_unlock(periph);
804 if (tsleep(&hstat, PCATCH, "sgnull", 0) == ERESTART)
806 cam_periph_lock(periph);
809 if (rdwr->state != SG_RDWR_DONE) {
810 tsleep_interlock(rdwr, PCATCH);
811 cam_periph_unlock(periph);
812 if (rdwr->state != SG_RDWR_DONE) {
813 if (tsleep(rdwr, PCATCH | PINTERLOCKED, "sgread", 0) ==
818 cam_periph_lock(periph);
821 TAILQ_REMOVE(&sc->rdwr_done, rdwr, rdwr_link);
822 cam_periph_unlock(periph);
824 hdr = &rdwr->hdr.hdr;
825 csio = &rdwr->ccb->csio;
826 sg_scsiio_status(csio, &hstat, &dstat);
827 hdr->host_status = hstat;
828 hdr->driver_status = dstat;
829 hdr->target_status = csio->scsi_status >> 1;
833 case DID_PASSTHROUGH:
853 if (dstat == DRIVER_SENSE) {
854 bcopy(&csio->sense_data, hdr->sense_buffer,
855 min(csio->sense_len, SG_MAX_SENSE));
857 scsi_sense_print(csio);
861 error = uiomove((char *)&hdr->result, sizeof(*hdr) -
862 offsetof(struct sg_header, result), uio);
863 if ((error == 0) && (hdr->result == 0))
864 error = uiomove(rdwr->buf, rdwr->buf_len, uio);
866 cam_periph_lock(periph);
867 xpt_free_ccb(rdwr->ccb);
868 cam_periph_unlock(periph);
869 kfree(rdwr->buf, M_DEVBUF);
870 kfree(rdwr, M_DEVBUF);
875 sgsendccb(struct cam_periph *periph, union ccb *ccb)
877 struct sg_softc *softc;
878 struct cam_periph_map_info mapinfo;
879 int error, need_unmap = 0;
881 softc = periph->softc;
882 if (((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE)
883 && (ccb->csio.data_ptr != NULL)) {
884 bzero(&mapinfo, sizeof(mapinfo));
887 * cam_periph_mapmem calls into proc and vm functions that can
888 * sleep as well as trigger I/O, so we can't hold the lock.
889 * Dropping it here is reasonably safe.
891 cam_periph_unlock(periph);
892 error = cam_periph_mapmem(ccb, &mapinfo);
893 cam_periph_lock(periph);
899 error = cam_periph_runccb(ccb, sgerror, CAM_RETRY_SELTO,
900 SF_RETRY_UA, &softc->device_stats);
903 cam_periph_unmapmem(ccb, &mapinfo);
909 sgsendrdwr(struct cam_periph *periph, union ccb *ccb)
911 struct sg_softc *softc;
913 softc = periph->softc;
914 devstat_start_transaction(&softc->device_stats);
920 sgerror(union ccb *ccb, uint32_t cam_flags, uint32_t sense_flags)
922 struct cam_periph *periph;
923 struct sg_softc *softc;
925 periph = xpt_path_periph(ccb->ccb_h.path);
926 softc = (struct sg_softc *)periph->softc;
928 return (cam_periph_error(ccb, cam_flags, sense_flags,
933 sg_scsiio_status(struct ccb_scsiio *csio, u_short *hoststat, u_short *drvstat)
937 status = csio->ccb_h.status;
939 switch (status & CAM_STATUS_MASK) {
944 case CAM_REQ_CMP_ERR:
945 *hoststat = DID_ERROR;
948 case CAM_REQ_ABORTED:
949 *hoststat = DID_ABORT;
952 case CAM_REQ_INVALID:
953 *hoststat = DID_ERROR;
954 *drvstat = DRIVER_INVALID;
956 case CAM_DEV_NOT_THERE:
957 *hoststat = DID_BAD_TARGET;
960 case CAM_SEL_TIMEOUT:
961 *hoststat = DID_NO_CONNECT;
964 case CAM_CMD_TIMEOUT:
965 *hoststat = DID_TIME_OUT;
968 case CAM_SCSI_STATUS_ERROR:
969 *hoststat = DID_ERROR;
972 case CAM_SCSI_BUS_RESET:
973 *hoststat = DID_RESET;
976 case CAM_UNCOR_PARITY:
977 *hoststat = DID_PARITY;
981 *hoststat = DID_BUS_BUSY;
985 *hoststat = DID_ERROR;
986 *drvstat = DRIVER_ERROR;
989 if (status & CAM_AUTOSNS_VALID)
990 *drvstat = DRIVER_SENSE;
994 scsi_group_len(u_char cmd)
996 int len[] = {6, 10, 10, 12, 12, 12, 10, 10};
999 group = (cmd >> 5) & 0x7;
1000 return (len[group]);