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.
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/kernel.h>
35 #include <sys/types.h>
39 #include <sys/malloc.h>
40 #include <sys/fcntl.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"
57 #include "scsi_message.h"
62 SG_FLAG_LOCKED
= 0x02,
63 SG_FLAG_INVALID
= 0x04
82 #define ccb_type ppriv_field0
83 #define ccb_rdwr ppriv_ptr1
86 TAILQ_ENTRY(sg_rdwr
) rdwr_link
;
94 struct sg_io_hdr io_hdr
;
101 struct devstat device_stats
;
102 TAILQ_HEAD(, sg_rdwr
) rdwr_done
;
110 static d_open_t sgopen
;
111 static d_close_t sgclose
;
112 static d_ioctl_t sgioctl
;
113 static d_write_t sgwrite
;
114 static d_read_t sgread
;
116 static periph_init_t sginit
;
117 static periph_ctor_t sgregister
;
118 static periph_oninv_t sgoninvalidate
;
119 static periph_dtor_t sgcleanup
;
120 static periph_start_t sgstart
;
121 static void sgasync(void *callback_arg
, uint32_t code
,
122 struct cam_path
*path
, void *arg
);
123 static void sgdone(struct cam_periph
*periph
, union ccb
*done_ccb
);
124 static int sgsendccb(struct cam_periph
*periph
, union ccb
*ccb
);
125 static int sgsendrdwr(struct cam_periph
*periph
, union ccb
*ccb
);
126 static int sgerror(union ccb
*ccb
, uint32_t cam_flags
,
127 uint32_t sense_flags
);
128 static void sg_scsiio_status(struct ccb_scsiio
*csio
,
129 u_short
*hoststat
, u_short
*drvstat
);
131 static int scsi_group_len(u_char cmd
);
133 static struct periph_driver sgdriver
=
136 TAILQ_HEAD_INITIALIZER(sgdriver
.units
), /* gen */ 0
138 PERIPHDRIVER_DECLARE(sg
, sgdriver
);
140 static struct dev_ops sg_ops
= {
141 { "sg", 0, D_DISK
| D_MPSAFE
},
149 static int sg_version
= 30125;
157 * Install a global async callback. This callback will receive aync
158 * callbacks like "new device found".
160 status
= xpt_register_async(AC_FOUND_DEVICE
, sgasync
, NULL
, NULL
);
162 if (status
!= CAM_REQ_CMP
) {
163 kprintf("sg: Failed to attach master async callbac "
164 "due to status 0x%x!\n", status
);
169 sgoninvalidate(struct cam_periph
*periph
)
171 struct sg_softc
*softc
;
173 softc
= (struct sg_softc
*)periph
->softc
;
176 * Deregister any async callbacks.
178 xpt_register_async(0, sgasync
, periph
, periph
->path
);
180 softc
->flags
|= SG_FLAG_INVALID
;
183 * XXX Return all queued I/O with ENXIO.
184 * XXX Handle any transactions queued to the card
185 * with XPT_ABORT_CCB.
189 xpt_print(periph
->path
, "lost device\n");
194 sgcleanup(struct cam_periph
*periph
)
196 struct sg_softc
*softc
;
198 softc
= (struct sg_softc
*)periph
->softc
;
200 xpt_print(periph
->path
, "removing device entry\n");
201 devstat_remove_entry(&softc
->device_stats
);
202 cam_periph_unlock(periph
);
203 destroy_dev(softc
->dev
);
204 cam_periph_lock(periph
);
205 kfree(softc
, M_DEVBUF
);
209 sgasync(void *callback_arg
, uint32_t code
, struct cam_path
*path
, void *arg
)
211 struct cam_periph
*periph
;
213 periph
= (struct cam_periph
*)callback_arg
;
216 case AC_FOUND_DEVICE
:
218 struct ccb_getdev
*cgd
;
221 cgd
= (struct ccb_getdev
*)arg
;
226 if (cgd
->protocol
!= PROTO_SCSI
)
231 * Allocate a peripheral instance for this device and
232 * start the probe process.
234 status
= cam_periph_alloc(sgregister
, sgoninvalidate
,
236 "sg", CAM_PERIPH_BIO
, cgd
->ccb_h
.path
,
237 sgasync
, AC_FOUND_DEVICE
, cgd
);
238 if ((status
!= CAM_REQ_CMP
) && (status
!= CAM_REQ_INPROG
)) {
239 const struct cam_status_entry
*entry
;
241 entry
= cam_fetch_status_entry(status
);
242 kprintf("sgasync: Unable to attach new device "
243 "due to status %#x: %s\n", status
, entry
?
244 entry
->status_text
: "Unknown");
249 cam_periph_async(periph
, code
, path
, arg
);
255 sgregister(struct cam_periph
*periph
, void *arg
)
257 struct sg_softc
*softc
;
258 struct ccb_getdev
*cgd
;
261 cgd
= (struct ccb_getdev
*)arg
;
262 if (periph
== NULL
) {
263 kprintf("sgregister: periph was NULL!!\n");
264 return (CAM_REQ_CMP_ERR
);
268 kprintf("sgregister: no getdev CCB, can't register device\n");
269 return (CAM_REQ_CMP_ERR
);
272 softc
= kmalloc(sizeof(*softc
), M_DEVBUF
, M_WAITOK
| M_ZERO
);
273 softc
->state
= SG_STATE_NORMAL
;
274 softc
->pd_type
= SID_TYPE(&cgd
->inq_data
);
275 softc
->sg_timeout
= SG_DEFAULT_TIMEOUT
/ SG_DEFAULT_HZ
* hz
;
276 softc
->sg_user_timeout
= SG_DEFAULT_TIMEOUT
;
277 TAILQ_INIT(&softc
->rdwr_done
);
278 periph
->softc
= softc
;
281 * We pass in 0 for all blocksize, since we don't know what the
282 * blocksize of the device is, if it even has a blocksize.
284 cam_periph_unlock(periph
);
285 no_tags
= (cgd
->inq_data
.flags
& SID_CmdQue
) == 0;
286 devstat_add_entry(&softc
->device_stats
, "sg",
287 periph
->unit_number
, 0,
288 DEVSTAT_NO_BLOCKSIZE
|
289 (no_tags
? DEVSTAT_NO_ORDERED_TAGS
: 0),
291 DEVSTAT_TYPE_IF_SCSI
| DEVSTAT_PRIORITY_PASS
,
292 DEVSTAT_PRIORITY_PASS
);
294 /* Register the device */
295 softc
->dev
= make_dev(&sg_ops
, periph
->unit_number
,
296 UID_ROOT
, GID_OPERATOR
, 0600, "%s%d",
297 periph
->periph_name
, periph
->unit_number
);
298 make_dev_alias(softc
->dev
, "sg%c", 'a' + periph
->unit_number
);
299 cam_periph_lock(periph
);
300 softc
->dev
->si_drv1
= periph
;
303 * Add as async callback so that we get
304 * notified if this device goes away.
306 xpt_register_async(AC_LOST_DEVICE
, sgasync
, periph
, periph
->path
);
310 xpt_announce_periph(periph
, NULL
);
313 return (CAM_REQ_CMP
);
317 sgstart(struct cam_periph
*periph
, union ccb
*start_ccb
)
319 struct sg_softc
*softc
;
321 softc
= (struct sg_softc
*)periph
->softc
;
323 switch (softc
->state
) {
324 case SG_STATE_NORMAL
:
325 start_ccb
->ccb_h
.ccb_type
= SG_CCB_WAITING
;
326 SLIST_INSERT_HEAD(&periph
->ccb_list
, &start_ccb
->ccb_h
,
328 periph
->immediate_priority
= CAM_PRIORITY_NONE
;
329 wakeup(&periph
->ccb_list
);
335 sgdone(struct cam_periph
*periph
, union ccb
*done_ccb
)
337 struct sg_softc
*softc
;
338 struct ccb_scsiio
*csio
;
340 softc
= (struct sg_softc
*)periph
->softc
;
341 csio
= &done_ccb
->csio
;
343 switch (csio
->ccb_h
.ccb_type
) {
345 /* Caller will release the CCB */
346 wakeup(&done_ccb
->ccb_h
.cbfcnp
);
350 struct sg_rdwr
*rdwr
;
352 devstat_end_transaction(
353 &softc
->device_stats
,
355 csio
->tag_action
& 0xf,
356 ((csio
->ccb_h
.flags
& CAM_DIR_MASK
) ==
357 CAM_DIR_NONE
) ? DEVSTAT_NO_DATA
:
358 ((csio
->ccb_h
.flags
& CAM_DIR_OUT
) ?
359 DEVSTAT_WRITE
: DEVSTAT_READ
));
361 rdwr
= done_ccb
->ccb_h
.ccb_rdwr
;
362 rdwr
->state
= SG_RDWR_DONE
;
367 wakeup(&done_ccb
->ccb_h
.cbfcnp
);
370 panic("unknown sg CCB type");
375 sgopen(struct dev_open_args
*ap
)
376 /*cdev_t dev, int flags, int fmt, struct thread *td)*/
378 struct cam_periph
*periph
;
379 struct sg_softc
*softc
;
383 * Disallow CAM access if RESTRICTEDROOT
385 if (caps_priv_check_self(SYSCAP_RESTRICTEDROOT
))
388 periph
= (struct cam_periph
*)ap
->a_head
.a_dev
->si_drv1
;
393 * Don't allow access when we're running at a high securelevel.
395 if (securelevel
> 1) {
396 cam_periph_unlock(periph
);
397 cam_periph_release(periph
);
400 cam_periph_lock(periph
);
402 softc
= (struct sg_softc
*)periph
->softc
;
403 if (softc
->flags
& SG_FLAG_INVALID
) {
404 cam_periph_unlock(periph
);
408 if ((softc
->flags
& SG_FLAG_OPEN
) == 0) {
409 softc
->flags
|= SG_FLAG_OPEN
;
410 cam_periph_unlock(periph
);
412 /* Device closes aren't symmetrical, fix up the refcount. */
413 cam_periph_unlock(periph
);
414 cam_periph_release(periph
);
421 sgclose(struct dev_close_args
*ap
)
422 /* cdev_t dev, int flag, int fmt, struct thread *td) */
424 struct cam_periph
*periph
;
425 struct sg_softc
*softc
;
427 periph
= (struct cam_periph
*)ap
->a_head
.a_dev
->si_drv1
;
431 cam_periph_lock(periph
);
433 softc
= (struct sg_softc
*)periph
->softc
;
434 softc
->flags
&= ~SG_FLAG_OPEN
;
436 cam_periph_unlock(periph
);
437 cam_periph_release(periph
);
443 sgioctl(struct dev_ioctl_args
*ap
)
444 /* cdev_t dev, u_long cmd, caddr_t arg, int flag, struct thread *td) */
447 struct ccb_scsiio
*csio
;
448 struct cam_periph
*periph
;
449 struct sg_softc
*softc
;
450 struct sg_io_hdr req
;
453 periph
= (struct cam_periph
*)ap
->a_head
.a_dev
->si_drv1
;
457 cam_periph_lock(periph
);
459 softc
= (struct sg_softc
*)periph
->softc
;
464 case LINUX_SCSI_GET_BUS_NUMBER
: {
467 busno
= xpt_path_path_id(periph
->path
);
468 error
= copyout(&busno
, ap
->a_data
, sizeof(busno
));
471 case LINUX_SCSI_GET_IDLUN
: {
472 struct scsi_idlun idlun
;
475 idlun
.dev_id
= xpt_path_target_id(periph
->path
);
476 sim
= xpt_path_sim(periph
->path
);
477 idlun
.host_unique_id
= sim
->unit_number
;
478 error
= copyout(&idlun
, ap
->a_data
, sizeof(idlun
));
482 case SG_GET_VERSION_NUM
:
483 error
= copyout(&sg_version
, ap
->a_data
, sizeof(sg_version
));
485 case SG_SET_TIMEOUT
: {
488 error
= copyin(ap
->a_data
, &user_timeout
, sizeof(u_int
));
490 softc
->sg_user_timeout
= user_timeout
;
491 softc
->sg_timeout
= user_timeout
/ SG_DEFAULT_HZ
* hz
;
497 * The value is returned directly to the syscall.
499 ap
->a_sysmsg
->sysmsg_result
= softc
->sg_user_timeout
;
503 error
= copyin(ap
->a_data
, &req
, sizeof(req
));
507 if (req
.cmd_len
> IOCDBLEN
) {
512 if (req
.iovec_count
!= 0) {
517 ccb
= cam_periph_getccb(periph
, /*priority*/5);
518 ccb
->ccb_h
.ccb_type
= SG_CCB_POLLED
;
521 error
= copyin(req
.cmdp
, &csio
->cdb_io
.cdb_bytes
, req
.cmd_len
);
523 xpt_release_ccb(ccb
);
527 switch(req
.dxfer_direction
) {
528 case SG_DXFER_TO_DEV
:
531 case SG_DXFER_FROM_DEV
:
534 case SG_DXFER_TO_FROM_DEV
:
535 dir
= CAM_DIR_IN
| CAM_DIR_OUT
;
554 error
= sgsendccb(periph
, ccb
);
556 req
.host_status
= DID_ERROR
;
557 req
.driver_status
= DRIVER_INVALID
;
558 xpt_release_ccb(ccb
);
562 req
.status
= csio
->scsi_status
;
563 req
.masked_status
= (csio
->scsi_status
>> 1) & 0x7f;
564 sg_scsiio_status(csio
, &req
.host_status
, &req
.driver_status
);
565 req
.resid
= csio
->resid
;
566 req
.duration
= csio
->ccb_h
.timeout
;
569 error
= copyout(&req
, ap
->a_data
, sizeof(req
));
570 if ((error
== 0) && (csio
->ccb_h
.status
& CAM_AUTOSNS_VALID
)
571 && (req
.sbp
!= NULL
)) {
572 req
.sb_len_wr
= req
.mx_sb_len
- csio
->sense_resid
;
573 error
= copyout(&csio
->sense_data
, req
.sbp
,
577 xpt_release_ccb(ccb
);
580 case SG_GET_RESERVED_SIZE
: {
583 error
= copyout(&size
, ap
->a_data
, sizeof(size
));
589 struct sg_scsi_id id
;
591 id
.host_no
= 0; /* XXX */
592 id
.channel
= xpt_path_path_id(periph
->path
);
593 id
.scsi_id
= xpt_path_target_id(periph
->path
);
594 id
.lun
= xpt_path_lun_id(periph
->path
);
595 id
.scsi_type
= softc
->pd_type
;
596 id
.h_cmd_per_lun
= 1;
597 id
.d_queue_depth
= 1;
601 error
= copyout(&id
, ap
->a_data
, sizeof(id
));
605 case SG_EMULATED_HOST
:
606 case SG_SET_TRANSFORM
:
607 case SG_GET_TRANSFORM
:
608 case SG_GET_NUM_WAITING
:
610 case SG_GET_REQUEST_TABLE
:
611 case SG_SET_KEEP_ORPHAN
:
612 case SG_GET_KEEP_ORPHAN
:
613 case SG_GET_ACCESS_COUNT
:
614 case SG_SET_FORCE_LOW_DMA
:
616 case SG_GET_SG_TABLESIZE
:
617 case SG_SET_FORCE_PACK_ID
:
619 case SG_SET_RESERVED_SIZE
:
620 case SG_GET_COMMAND_Q
:
621 case SG_SET_COMMAND_Q
:
623 case SG_NEXT_CMD_LEN
:
626 kprintf("sgioctl: rejecting cmd 0x%lx\n", ap
->a_cmd
);
632 cam_periph_unlock(periph
);
637 sgwrite(struct dev_write_args
*ap
)
638 /*cdev_t dev, struct uio *uio, int ioflag)*/
641 struct cam_periph
*periph
;
642 struct ccb_scsiio
*csio
;
644 struct sg_header
*hdr
;
645 struct sg_rdwr
*rdwr
;
648 int error
= 0, cdb_len
, buf_len
, dir
;
649 struct uio
*uio
= ap
->a_uio
;
651 periph
= ap
->a_head
.a_dev
->si_drv1
;
652 rdwr
= kmalloc(sizeof(*rdwr
), M_DEVBUF
, M_WAITOK
| M_ZERO
);
653 hdr
= &rdwr
->hdr
.hdr
;
655 /* Copy in the header block and sanity check it */
656 if (uio
->uio_resid
< sizeof(*hdr
)) {
660 error
= uiomove((char *)hdr
, sizeof(*hdr
), uio
);
664 ccb
= xpt_alloc_ccb();
672 * Copy in the CDB block. The designers of the interface didn't
673 * bother to provide a size for this in the header, so we have to
674 * figure it out ourselves.
676 if (uio
->uio_resid
< 1)
678 error
= uiomove(&cdb_cmd
, 1, uio
);
681 if (hdr
->twelve_byte
)
684 cdb_len
= scsi_group_len(cdb_cmd
);
686 * We've already read the first byte of the CDB and advanced the uio
687 * pointer. Just read the rest.
689 csio
->cdb_io
.cdb_bytes
[0] = cdb_cmd
;
690 error
= uiomove(&csio
->cdb_io
.cdb_bytes
[1], cdb_len
- 1, uio
);
695 * Now set up the data block. Again, the designers didn't bother
696 * to make this reliable.
698 buf_len
= uio
->uio_resid
;
700 buf
= kmalloc(buf_len
, M_DEVBUF
, M_WAITOK
| M_ZERO
);
701 error
= uiomove(buf
, buf_len
, uio
);
705 } else if (hdr
->reply_len
!= 0) {
706 buf
= kmalloc(hdr
->reply_len
, M_DEVBUF
, M_WAITOK
| M_ZERO
);
707 buf_len
= hdr
->reply_len
;
715 cam_periph_lock(periph
);
717 xpt_setup_ccb(&ccb
->ccb_h
, periph
->path
, /*priority*/5);
730 * Send off the command and hope that it works. This path does not
731 * go through sgstart because the I/O is supposed to be asynchronous.
734 rdwr
->buf_len
= buf_len
;
735 rdwr
->tag
= hdr
->pack_id
;
737 rdwr
->state
= SG_RDWR_INPROG
;
738 ccb
->ccb_h
.ccb_rdwr
= rdwr
;
739 ccb
->ccb_h
.ccb_type
= SG_CCB_RDWR_IO
;
740 TAILQ_INSERT_TAIL(&sc
->rdwr_done
, rdwr
, rdwr_link
);
741 error
= sgsendrdwr(periph
, ccb
);
742 cam_periph_unlock(periph
);
746 kfree(buf
, M_DEVBUF
);
748 xpt_free_ccb(&ccb
->ccb_h
);
750 kfree(rdwr
, M_DEVBUF
);
755 sgread(struct dev_read_args
*ap
)
756 /*cdev_t dev, struct uio *uio, int ioflag)*/
758 struct ccb_scsiio
*csio
;
759 struct cam_periph
*periph
;
761 struct sg_header
*hdr
;
762 struct sg_rdwr
*rdwr
;
763 u_short hstat
, dstat
;
764 int error
, pack_len
, reply_len
, pack_id
;
765 struct uio
*uio
= ap
->a_uio
;
767 periph
= ap
->a_head
.a_dev
->si_drv1
;
769 /* XXX The pack len field needs to be updated and written out instead
770 * of discarded. Not sure how to do that.
772 uio
->uio_rw
= UIO_WRITE
;
773 if ((error
= uiomove((char *)&pack_len
, 4, uio
)) != 0)
775 if ((error
= uiomove((char *)&reply_len
, 4, uio
)) != 0)
777 if ((error
= uiomove((char *)&pack_id
, 4, uio
)) != 0)
779 uio
->uio_rw
= UIO_READ
;
781 cam_periph_lock(periph
);
784 TAILQ_FOREACH(rdwr
, &sc
->rdwr_done
, rdwr_link
) {
785 if (rdwr
->tag
== pack_id
)
789 cam_periph_unlock(periph
);
790 if (tsleep(&hstat
, PCATCH
, "sgnull", 0) == ERESTART
)
792 cam_periph_lock(periph
);
795 if (rdwr
->state
!= SG_RDWR_DONE
) {
796 tsleep_interlock(rdwr
, PCATCH
);
797 cam_periph_unlock(periph
);
798 if (rdwr
->state
!= SG_RDWR_DONE
) {
799 if (tsleep(rdwr
, PCATCH
| PINTERLOCKED
, "sgread", 0) ==
804 cam_periph_lock(periph
);
807 TAILQ_REMOVE(&sc
->rdwr_done
, rdwr
, rdwr_link
);
808 cam_periph_unlock(periph
);
810 hdr
= &rdwr
->hdr
.hdr
;
811 csio
= &rdwr
->ccb
->csio
;
812 sg_scsiio_status(csio
, &hstat
, &dstat
);
813 hdr
->host_status
= hstat
;
814 hdr
->driver_status
= dstat
;
815 hdr
->target_status
= csio
->scsi_status
>> 1;
819 case DID_PASSTHROUGH
:
839 if (dstat
== DRIVER_SENSE
) {
840 bcopy(&csio
->sense_data
, hdr
->sense_buffer
,
841 min(csio
->sense_len
, SG_MAX_SENSE
));
843 scsi_sense_print(csio
);
847 error
= uiomove((char *)&hdr
->result
, sizeof(*hdr
) -
848 offsetof(struct sg_header
, result
), uio
);
849 if ((error
== 0) && (hdr
->result
== 0))
850 error
= uiomove(rdwr
->buf
, rdwr
->buf_len
, uio
);
852 cam_periph_lock(periph
);
853 xpt_free_ccb(&rdwr
->ccb
->ccb_h
);
854 cam_periph_unlock(periph
);
855 kfree(rdwr
->buf
, M_DEVBUF
);
856 kfree(rdwr
, M_DEVBUF
);
861 sgsendccb(struct cam_periph
*periph
, union ccb
*ccb
)
863 struct sg_softc
*softc
;
864 struct cam_periph_map_info mapinfo
;
865 int error
, need_unmap
= 0;
867 softc
= periph
->softc
;
868 if (((ccb
->ccb_h
.flags
& CAM_DIR_MASK
) != CAM_DIR_NONE
)
869 && (ccb
->csio
.data_ptr
!= NULL
)) {
870 bzero(&mapinfo
, sizeof(mapinfo
));
873 * cam_periph_mapmem calls into proc and vm functions that can
874 * sleep as well as trigger I/O, so we can't hold the lock.
875 * Dropping it here is reasonably safe.
877 cam_periph_unlock(periph
);
878 error
= cam_periph_mapmem(ccb
, &mapinfo
);
879 cam_periph_lock(periph
);
885 error
= cam_periph_runccb(ccb
, sgerror
, CAM_RETRY_SELTO
,
886 SF_RETRY_UA
, &softc
->device_stats
);
889 cam_periph_unmapmem(ccb
, &mapinfo
);
895 sgsendrdwr(struct cam_periph
*periph
, union ccb
*ccb
)
897 struct sg_softc
*softc
;
899 softc
= periph
->softc
;
900 devstat_start_transaction(&softc
->device_stats
);
906 sgerror(union ccb
*ccb
, uint32_t cam_flags
, uint32_t sense_flags
)
908 struct cam_periph
*periph
;
909 struct sg_softc
*softc
;
911 periph
= xpt_path_periph(ccb
->ccb_h
.path
);
912 softc
= (struct sg_softc
*)periph
->softc
;
914 return (cam_periph_error(ccb
, cam_flags
, sense_flags
,
919 sg_scsiio_status(struct ccb_scsiio
*csio
, u_short
*hoststat
, u_short
*drvstat
)
923 status
= csio
->ccb_h
.status
;
925 switch (status
& CAM_STATUS_MASK
) {
930 case CAM_REQ_CMP_ERR
:
931 *hoststat
= DID_ERROR
;
934 case CAM_REQ_ABORTED
:
935 *hoststat
= DID_ABORT
;
938 case CAM_REQ_INVALID
:
939 *hoststat
= DID_ERROR
;
940 *drvstat
= DRIVER_INVALID
;
942 case CAM_DEV_NOT_THERE
:
943 *hoststat
= DID_BAD_TARGET
;
946 case CAM_SEL_TIMEOUT
:
947 *hoststat
= DID_NO_CONNECT
;
950 case CAM_CMD_TIMEOUT
:
951 *hoststat
= DID_TIME_OUT
;
954 case CAM_SCSI_STATUS_ERROR
:
955 *hoststat
= DID_ERROR
;
958 case CAM_SCSI_BUS_RESET
:
959 *hoststat
= DID_RESET
;
962 case CAM_UNCOR_PARITY
:
963 *hoststat
= DID_PARITY
;
967 *hoststat
= DID_BUS_BUSY
;
971 *hoststat
= DID_ERROR
;
972 *drvstat
= DRIVER_ERROR
;
975 if (status
& CAM_AUTOSNS_VALID
)
976 *drvstat
= DRIVER_SENSE
;
980 scsi_group_len(u_char cmd
)
982 int len
[] = {6, 10, 10, 12, 12, 12, 10, 10};
985 group
= (cmd
>> 5) & 0x7;