2 * Copyright (c) 1999 Luoqi Chen.
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 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
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
18 * FOR 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
26 * $FreeBSD: src/sys/dev/aic/aic.c,v 1.8 2000/01/14 23:42:35 imp Exp $
27 * $DragonFly: src/sys/dev/disk/aic/aic.c,v 1.14 2008/05/18 20:30:21 pavalos Exp $
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
34 #include <sys/thread2.h>
36 #include <bus/cam/cam.h>
37 #include <bus/cam/cam_ccb.h>
38 #include <bus/cam/cam_sim.h>
39 #include <bus/cam/cam_xpt_sim.h>
40 #include <bus/cam/cam_debug.h>
42 #include <bus/cam/scsi/scsi_message.h>
44 #include "aic6360reg.h"
47 static void aic_action (struct cam_sim
*sim
, union ccb
*ccb
);
48 static void aic_execute_scb (void *arg
, bus_dma_segment_t
*dm_segs
,
50 static void aic_start (struct aic_softc
*aic
);
51 static void aic_select (struct aic_softc
*aic
);
52 static void aic_selected (struct aic_softc
*aic
);
53 static void aic_reselected (struct aic_softc
*aic
);
54 static void aic_reconnect (struct aic_softc
*aic
, int tag
);
55 static void aic_cmd (struct aic_softc
*aic
);
56 static void aic_msgin (struct aic_softc
*aic
);
57 static void aic_handle_msgin (struct aic_softc
*aic
);
58 static void aic_msgout (struct aic_softc
*aic
);
59 static void aic_datain (struct aic_softc
*aic
);
60 static void aic_dataout (struct aic_softc
*aic
);
61 static void aic_done (struct aic_softc
*aic
, struct aic_scb
*scb
);
62 static void aic_poll (struct cam_sim
*sim
);
63 static void aic_timeout (void *arg
);
64 static void aic_scsi_reset (struct aic_softc
*aic
);
65 static void aic_chip_reset (struct aic_softc
*aic
);
66 static void aic_reset (struct aic_softc
*aic
, int initiate_reset
);
68 devclass_t aic_devclass
;
70 static struct aic_scb
*free_scbs
;
72 static struct aic_scb
*
73 aic_get_scb(struct aic_softc
*aic
)
79 if ((scb
= free_scbs
) != NULL
)
80 free_scbs
= (struct aic_scb
*)free_scbs
->ccb
;
87 aic_free_scb(struct aic_softc
*aic
, struct aic_scb
*scb
)
91 if ((aic
->flags
& AIC_RESOURCE_SHORTAGE
) != 0 &&
92 (scb
->ccb
->ccb_h
.status
& CAM_RELEASE_SIMQ
) == 0) {
93 scb
->ccb
->ccb_h
.status
|= CAM_RELEASE_SIMQ
;
94 aic
->flags
&= ~AIC_RESOURCE_SHORTAGE
;
97 scb
->ccb
= (union ccb
*)free_scbs
;
104 aic_action(struct cam_sim
*sim
, union ccb
*ccb
)
106 struct aic_softc
*aic
;
108 CAM_DEBUG(ccb
->ccb_h
.path
, CAM_DEBUG_TRACE
, ("aic_action\n"));
110 aic
= (struct aic_softc
*)cam_sim_softc(sim
);
112 switch (ccb
->ccb_h
.func_code
) {
113 case XPT_SCSI_IO
: /* Execute the requested I/O operation */
114 case XPT_RESET_DEV
: /* Bus Device Reset the specified SCSI device */
118 if ((scb
= aic_get_scb(aic
)) == NULL
) {
120 aic
->flags
|= AIC_RESOURCE_SHORTAGE
;
122 xpt_freeze_simq(aic
->sim
, /*count*/1);
123 ccb
->ccb_h
.status
= CAM_REQUEUE_REQ
;
129 ccb
->ccb_h
.ccb_scb_ptr
= scb
;
130 ccb
->ccb_h
.ccb_aic_ptr
= aic
;
132 scb
->target
= ccb
->ccb_h
.target_id
;
133 scb
->lun
= ccb
->ccb_h
.target_lun
;
135 if (ccb
->ccb_h
.func_code
== XPT_SCSI_IO
) {
136 scb
->cmd_len
= ccb
->csio
.cdb_len
;
137 if (ccb
->ccb_h
.flags
& CAM_CDB_POINTER
) {
138 if (ccb
->ccb_h
.flags
& CAM_CDB_PHYS
) {
139 ccb
->ccb_h
.status
= CAM_REQ_INVALID
;
140 aic_free_scb(aic
, scb
);
144 scb
->cmd_ptr
= ccb
->csio
.cdb_io
.cdb_ptr
;
146 scb
->cmd_ptr
= ccb
->csio
.cdb_io
.cdb_bytes
;
148 if ((ccb
->ccb_h
.flags
& CAM_DIR_MASK
) != CAM_DIR_NONE
) {
149 if ((ccb
->ccb_h
.flags
& CAM_SCATTER_VALID
) ||
150 (ccb
->ccb_h
.flags
& CAM_DATA_PHYS
)) {
151 ccb
->ccb_h
.status
= CAM_REQ_INVALID
;
152 aic_free_scb(aic
, scb
);
156 scb
->data_ptr
= ccb
->csio
.data_ptr
;
157 scb
->data_len
= ccb
->csio
.dxfer_len
;
159 scb
->data_ptr
= NULL
;
162 aic_execute_scb(scb
, NULL
, 0, 0);
164 scb
->flags
|= SCB_DEVICE_RESET
;
165 aic_execute_scb(scb
, NULL
, 0, 0);
169 case XPT_SET_TRAN_SETTINGS
:
171 struct ccb_trans_settings
*cts
= cts
= &ccb
->cts
;
172 struct aic_tinfo
*ti
= &aic
->tinfo
[ccb
->ccb_h
.target_id
];
173 struct ccb_trans_settings_scsi
*scsi
=
174 &cts
->proto_specific
.scsi
;
175 struct ccb_trans_settings_spi
*spi
=
176 &cts
->xport_specific
.spi
;
180 if ((spi
->valid
& CTS_SPI_VALID_DISC
) != 0 &&
181 (aic
->flags
& AIC_DISC_ENABLE
) != 0) {
182 if ((spi
->flags
& CTS_SPI_FLAGS_DISC_ENB
) != 0)
183 ti
->flags
|= TINFO_DISC_ENB
;
185 ti
->flags
&= ~TINFO_DISC_ENB
;
188 if ((scsi
->valid
& CTS_SCSI_VALID_TQ
) != 0) {
189 if ((scsi
->flags
& CTS_SCSI_FLAGS_TAG_ENB
) != 0)
190 ti
->flags
|= TINFO_TAG_ENB
;
192 ti
->flags
&= ~TINFO_TAG_ENB
;
195 if ((spi
->valid
& CTS_SPI_VALID_SYNC_RATE
) != 0) {
196 ti
->goal
.period
= spi
->sync_period
;
198 if (ti
->goal
.period
> aic
->min_period
) {
201 } else if (ti
->goal
.period
< aic
->max_period
)
202 ti
->goal
.period
= aic
->max_period
;
205 if ((spi
->valid
& CTS_SPI_VALID_SYNC_OFFSET
) != 0) {
206 ti
->goal
.offset
= spi
->sync_offset
;
207 if (ti
->goal
.offset
== 0)
209 else if (ti
->goal
.offset
> AIC_SYNC_OFFSET
)
210 ti
->goal
.offset
= AIC_SYNC_OFFSET
;
213 if ((ti
->goal
.period
!= ti
->current
.period
)
214 || (ti
->goal
.offset
!= ti
->current
.offset
))
215 ti
->flags
|= TINFO_SDTR_NEGO
;
218 ccb
->ccb_h
.status
= CAM_REQ_CMP
;
222 case XPT_GET_TRAN_SETTINGS
:
224 struct ccb_trans_settings
*cts
= &ccb
->cts
;
225 struct aic_tinfo
*ti
= &aic
->tinfo
[ccb
->ccb_h
.target_id
];
226 struct ccb_trans_settings_scsi
*scsi
=
227 &cts
->proto_specific
.scsi
;
228 struct ccb_trans_settings_spi
*spi
=
229 &cts
->xport_specific
.spi
;
231 cts
->protocol
= PROTO_SCSI
;
232 cts
->protocol_version
= SCSI_REV_2
;
233 cts
->transport
= XPORT_SPI
;
234 cts
->transport_version
= 2;
235 scsi
->flags
&= ~CTS_SCSI_FLAGS_TAG_ENB
;
236 spi
->flags
&= ~CTS_SPI_FLAGS_DISC_ENB
;
239 if ((ti
->flags
& TINFO_DISC_ENB
) != 0)
240 spi
->flags
|= CTS_SPI_FLAGS_DISC_ENB
;
241 if ((ti
->flags
& TINFO_TAG_ENB
) != 0)
242 scsi
->flags
|= CTS_SCSI_FLAGS_TAG_ENB
;
244 if (cts
->type
== CTS_TYPE_CURRENT_SETTINGS
) {
245 spi
->sync_period
= ti
->current
.period
;
246 spi
->sync_offset
= ti
->current
.offset
;
248 spi
->sync_period
= ti
->user
.period
;
249 spi
->sync_offset
= ti
->user
.offset
;
253 spi
->bus_width
= MSG_EXT_WDTR_BUS_8_BIT
;
254 spi
->valid
= CTS_SPI_VALID_SYNC_RATE
255 | CTS_SPI_VALID_SYNC_OFFSET
256 | CTS_SPI_VALID_BUS_WIDTH
257 | CTS_SPI_VALID_DISC
;
258 scsi
->valid
= CTS_SCSI_VALID_TQ
;
260 ccb
->ccb_h
.status
= CAM_REQ_CMP
;
264 case XPT_CALC_GEOMETRY
:
266 cam_calc_geometry(&ccb
->ccg
, /*extended*/1);
270 case XPT_RESET_BUS
: /* Reset the specified SCSI bus */
271 aic_reset(aic
, /*initiate_reset*/TRUE
);
272 ccb
->ccb_h
.status
= CAM_REQ_CMP
;
275 case XPT_PATH_INQ
: /* Path routing inquiry */
277 struct ccb_pathinq
*cpi
= &ccb
->cpi
;
279 cpi
->version_num
= 1; /* XXX??? */
280 cpi
->hba_inquiry
= PI_SDTR_ABLE
| PI_TAG_ABLE
;
281 cpi
->target_sprt
= 0;
283 cpi
->hba_eng_cnt
= 0;
286 cpi
->initiator_id
= aic
->initiator
;
287 cpi
->bus_id
= cam_sim_bus(sim
);
288 cpi
->base_transfer_speed
= 3300;
289 strncpy(cpi
->sim_vid
, "FreeBSD", SIM_IDLEN
);
290 strncpy(cpi
->hba_vid
, "Adaptec", HBA_IDLEN
);
291 strncpy(cpi
->dev_name
, cam_sim_name(sim
), DEV_IDLEN
);
292 cpi
->unit_number
= cam_sim_unit(sim
);
293 cpi
->transport
= XPORT_SPI
;
294 cpi
->transport_version
= 2;
295 cpi
->protocol
= PROTO_SCSI
;
296 cpi
->protocol_version
= SCSI_REV_2
;
297 cpi
->ccb_h
.status
= CAM_REQ_CMP
;
302 ccb
->ccb_h
.status
= CAM_REQ_INVALID
;
309 aic_execute_scb(void *arg
, bus_dma_segment_t
*dm_segs
, int nseg
, int error
)
311 struct aic_scb
*scb
= (struct aic_scb
*)arg
;
312 union ccb
*ccb
= scb
->ccb
;
313 struct aic_softc
*aic
= (struct aic_softc
*)ccb
->ccb_h
.ccb_aic_ptr
;
317 if (ccb
->ccb_h
.status
!= CAM_REQ_INPROG
) {
319 aic_free_scb(aic
, scb
);
324 scb
->flags
|= SCB_ACTIVE
;
325 ccb
->ccb_h
.status
|= CAM_SIM_QUEUED
;
326 TAILQ_INSERT_TAIL(&aic
->pending_ccbs
, &ccb
->ccb_h
, sim_links
.tqe
);
328 callout_reset(&ccb
->ccb_h
.timeout_ch
, (ccb
->ccb_h
.timeout
* hz
) / 1000,
336 * Start another command if the controller is not busy.
339 aic_start(struct aic_softc
*aic
)
341 struct ccb_hdr
*ccb_h
;
342 struct aic_tinfo
*ti
;
344 if (aic
->state
!= AIC_IDLE
)
347 TAILQ_FOREACH(ccb_h
, &aic
->pending_ccbs
, sim_links
.tqe
) {
348 ti
= &aic
->tinfo
[ccb_h
->target_id
];
349 if ((ti
->lubusy
& (1 << ccb_h
->target_lun
)) == 0) {
350 TAILQ_REMOVE(&aic
->pending_ccbs
, ccb_h
, sim_links
.tqe
);
351 aic
->nexus
= (struct aic_scb
*)ccb_h
->ccb_scb_ptr
;
357 CAM_DEBUG_PRINT(CAM_DEBUG_TRACE
, ("aic_start: idle\n"));
359 aic_outb(aic
, SIMODE0
, ENSELDI
);
360 aic_outb(aic
, SIMODE1
, ENSCSIRST
);
361 aic_outb(aic
, SCSISEQ
, ENRESELI
);
368 aic_select(struct aic_softc
*aic
)
370 struct aic_scb
*scb
= aic
->nexus
;
372 CAM_DEBUG(scb
->ccb
->ccb_h
.path
, CAM_DEBUG_TRACE
,
373 ("aic_select - ccb %p\n", scb
->ccb
));
375 aic
->state
= AIC_SELECTING
;
377 aic_outb(aic
, DMACNTRL1
, 0);
378 aic_outb(aic
, SCSIID
, aic
->initiator
<< OID_S
| scb
->target
);
379 aic_outb(aic
, SXFRCTL1
, STIMO_256ms
| ENSTIMER
|
380 (aic
->flags
& AIC_PARITY_ENABLE
? ENSPCHK
: 0));
382 aic_outb(aic
, SIMODE0
, ENSELDI
|ENSELDO
);
383 aic_outb(aic
, SIMODE1
, ENSCSIRST
|ENSELTIMO
);
384 aic_outb(aic
, SCSISEQ
, ENRESELI
|ENSELO
|ENAUTOATNO
);
388 * We have successfully selected a target, prepare for the information
392 aic_selected(struct aic_softc
*aic
)
394 struct aic_scb
*scb
= aic
->nexus
;
395 union ccb
*ccb
= scb
->ccb
;
396 struct aic_tinfo
*ti
= &aic
->tinfo
[scb
->target
];
398 CAM_DEBUG(ccb
->ccb_h
.path
, CAM_DEBUG_TRACE
,
399 ("aic_selected - ccb %p\n", ccb
));
401 aic
->state
= AIC_HASNEXUS
;
403 if (scb
->flags
& SCB_DEVICE_RESET
) {
404 aic
->msg_buf
[0] = MSG_BUS_DEV_RESET
;
406 aic
->msg_outq
= AIC_MSG_MSGBUF
;
408 aic
->msg_outq
= AIC_MSG_IDENTIFY
;
409 if ((ti
->flags
& TINFO_TAG_ENB
) != 0 &&
410 (ccb
->ccb_h
.flags
& CAM_TAG_ACTION_VALID
) != 0)
411 aic
->msg_outq
|= AIC_MSG_TAG_Q
;
413 ti
->lubusy
|= 1 << scb
->lun
;
414 if ((ti
->flags
& TINFO_SDTR_NEGO
) != 0)
415 aic
->msg_outq
|= AIC_MSG_SDTR
;
418 aic_outb(aic
, CLRSINT0
, CLRSELDO
);
419 aic_outb(aic
, CLRSINT1
, CLRBUSFREE
);
420 aic_outb(aic
, SCSISEQ
, ENAUTOATNP
);
421 aic_outb(aic
, SIMODE0
, 0);
422 aic_outb(aic
, SIMODE1
, ENSCSIRST
|ENBUSFREE
|ENREQINIT
);
423 aic_outb(aic
, SCSIRATE
, ti
->scsirate
);
427 * We are re-selected by a target, save the target id and wait for the
428 * target to further identify itself.
431 aic_reselected(struct aic_softc
*aic
)
435 CAM_DEBUG_PRINT(CAM_DEBUG_TRACE
, ("aic_reselected\n"));
438 * If we have started a selection, it must have lost out in
439 * the arbitration, put the command back to the pending queue.
442 TAILQ_INSERT_HEAD(&aic
->pending_ccbs
,
443 &aic
->nexus
->ccb
->ccb_h
, sim_links
.tqe
);
447 selid
= aic_inb(aic
, SELID
) & ~(1 << aic
->initiator
);
448 if (selid
& (selid
- 1)) {
449 /* this should never have happened */
450 kprintf("aic_reselected: invalid selid %x\n", selid
);
451 aic_reset(aic
, /*initiate_reset*/TRUE
);
455 aic
->state
= AIC_RESELECTED
;
456 aic
->target
= ffs(selid
) - 1;
459 aic_outb(aic
, CLRSINT0
, CLRSELDI
);
460 aic_outb(aic
, CLRSINT1
, CLRBUSFREE
);
461 aic_outb(aic
, SIMODE0
, 0);
462 aic_outb(aic
, SIMODE1
, ENSCSIRST
|ENBUSFREE
|ENREQINIT
);
463 aic_outb(aic
, SCSISEQ
, ENAUTOATNP
);
464 aic_outb(aic
, SCSIRATE
, aic
->tinfo
[aic
->target
].scsirate
);
468 * Raise ATNO to signal the target that we have a message for it.
471 aic_sched_msgout(struct aic_softc
*aic
, u_int8_t msg
)
474 aic
->msg_buf
[0] = msg
;
477 aic
->msg_outq
|= AIC_MSG_MSGBUF
;
478 aic_outb(aic
, SCSISIGO
, aic_inb(aic
, SCSISIGI
) | ATNO
);
482 * Wait for SPIORDY (SCSI PIO ready) flag, or a phase change.
485 aic_spiordy(struct aic_softc
*aic
)
487 while (!(aic_inb(aic
, DMASTAT
) & INTSTAT
) &&
488 !(aic_inb(aic
, SSTAT0
) & SPIORDY
))
490 return !(aic_inb(aic
, DMASTAT
) & INTSTAT
);
494 * Reestablish a disconnected nexus.
497 aic_reconnect(struct aic_softc
*aic
, int tag
)
500 struct ccb_hdr
*ccb_h
;
502 CAM_DEBUG_PRINT(CAM_DEBUG_TRACE
, ("aic_reconnect\n"));
506 TAILQ_FOREACH(ccb_h
, &aic
->nexus_ccbs
, sim_links
.tqe
) {
507 scb
= (struct aic_scb
*)ccb_h
->ccb_scb_ptr
;
508 if (scb
->target
== aic
->target
&& scb
->lun
== aic
->lun
&&
509 (tag
== -1 || scb
->tag
== tag
))
513 /* ABORT if nothing is found */
516 aic_sched_msgout(aic
, MSG_ABORT
);
518 aic_sched_msgout(aic
, MSG_ABORT_TAG
);
519 xpt_async(AC_UNSOL_RESEL
, aic
->path
, NULL
);
523 /* Reestablish the nexus */
524 TAILQ_REMOVE(&aic
->nexus_ccbs
, ccb_h
, sim_links
.tqe
);
526 scb
->flags
&= ~SCB_DISCONNECTED
;
527 aic
->state
= AIC_HASNEXUS
;
534 aic_msgin(struct aic_softc
*aic
)
538 CAM_DEBUG_PRINT(CAM_DEBUG_TRACE
, ("aic_msgin\n"));
540 aic_outb(aic
, SIMODE1
, ENSCSIRST
|ENPHASEMIS
|ENBUSFREE
);
541 aic_outb(aic
, SXFRCTL0
, CHEN
|SPIOEN
);
543 aic
->flags
&= ~AIC_DROP_MSGIN
;
547 * If a parity error is detected, drop the remaining
548 * bytes and inform the target so it could resend
551 if (aic_inb(aic
, SSTAT1
) & SCSIPERR
) {
552 aic_outb(aic
, CLRSINT1
, CLRSCSIPERR
);
553 aic
->flags
|= AIC_DROP_MSGIN
;
554 aic_sched_msgout(aic
, MSG_PARITY_ERROR
);
556 if ((aic
->flags
& AIC_DROP_MSGIN
)) {
557 aic_inb(aic
, SCSIDAT
);
560 /* read the message byte without ACKing on it */
561 aic
->msg_buf
[aic
->msg_len
++] = aic_inb(aic
, SCSIBUS
);
562 if (aic
->msg_buf
[0] == MSG_EXTENDED
) {
563 if (aic
->msg_len
< 2) {
564 (void) aic_inb(aic
, SCSIDAT
);
567 switch (aic
->msg_buf
[2]) {
569 msglen
= MSG_EXT_SDTR_LEN
;
572 msglen
= MSG_EXT_WDTR_LEN
;
578 if (aic
->msg_buf
[1] != msglen
) {
579 aic
->flags
|= AIC_DROP_MSGIN
;
580 aic_sched_msgout(aic
, MSG_MESSAGE_REJECT
);
583 } else if (aic
->msg_buf
[0] >= 0x20 && aic
->msg_buf
[0] <= 0x2f)
588 * If we have a complete message, handle it before the final
589 * ACK (in case we decide to reject the message).
591 if (aic
->msg_len
== msglen
) {
592 aic_handle_msgin(aic
);
595 /* ACK on the message byte */
596 (void) aic_inb(aic
, SCSIDAT
);
597 } while (aic_spiordy(aic
));
599 aic_outb(aic
, SXFRCTL0
, CHEN
);
600 aic_outb(aic
, SIMODE1
, ENSCSIRST
|ENBUSFREE
|ENREQINIT
);
607 aic_handle_msgin(struct aic_softc
*aic
)
610 struct ccb_hdr
*ccb_h
;
611 struct aic_tinfo
*ti
;
612 struct ccb_trans_settings neg
;
613 struct ccb_trans_settings_spi
*spi
= &neg
.xport_specific
.spi
;
615 if (aic
->state
== AIC_RESELECTED
) {
616 if (!MSG_ISIDENTIFY(aic
->msg_buf
[0])) {
617 aic_sched_msgout(aic
, MSG_MESSAGE_REJECT
);
620 aic
->lun
= aic
->msg_buf
[0] & MSG_IDENTIFY_LUNMASK
;
621 if (aic
->tinfo
[aic
->target
].lubusy
& (1 << aic
->lun
))
622 aic_reconnect(aic
, -1);
624 aic
->state
= AIC_RECONNECTING
;
628 if (aic
->state
== AIC_RECONNECTING
) {
629 if (aic
->msg_buf
[0] != MSG_SIMPLE_Q_TAG
) {
630 aic_sched_msgout(aic
, MSG_MESSAGE_REJECT
);
633 aic_reconnect(aic
, aic
->msg_buf
[1]);
637 switch (aic
->msg_buf
[0]) {
638 case MSG_CMDCOMPLETE
: {
639 struct ccb_scsiio
*csio
;
641 ccb_h
= &scb
->ccb
->ccb_h
;
642 csio
= &scb
->ccb
->csio
;
643 if ((scb
->flags
& SCB_SENSE
) != 0) {
644 /* auto REQUEST SENSE command */
645 scb
->flags
&= ~SCB_SENSE
;
646 csio
->sense_resid
= scb
->data_len
;
647 if (scb
->status
== SCSI_STATUS_OK
) {
649 CAM_SCSI_STATUS_ERROR
|CAM_AUTOSNS_VALID
;
650 /*scsi_sense_print(csio);*/
652 ccb_h
->status
|= CAM_AUTOSENSE_FAIL
;
653 kprintf("ccb %p sense failed %x\n",
657 csio
->scsi_status
= scb
->status
;
658 csio
->resid
= scb
->data_len
;
659 if (scb
->status
== SCSI_STATUS_OK
) {
660 /* everything goes well */
661 ccb_h
->status
|= CAM_REQ_CMP
;
662 } else if ((ccb_h
->flags
& CAM_DIS_AUTOSENSE
) == 0 &&
663 (csio
->scsi_status
== SCSI_STATUS_CHECK_COND
||
664 csio
->scsi_status
== SCSI_STATUS_CMD_TERMINATED
)) {
665 /* try to retrieve sense information */
666 scb
->flags
|= SCB_SENSE
;
667 aic
->flags
|= AIC_BUSFREE_OK
;
670 ccb_h
->status
|= CAM_SCSI_STATUS_ERROR
;
673 aic
->flags
|= AIC_BUSFREE_OK
;
677 switch (aic
->msg_buf
[2]) {
680 ti
= &aic
->tinfo
[scb
->target
];
681 if (ti
->flags
& TINFO_SDTR_SENT
) {
682 ti
->current
.period
= aic
->msg_buf
[3];
683 ti
->current
.offset
= aic
->msg_buf
[4];
685 ti
->current
.period
= aic
->msg_buf
[3] =
686 max(ti
->goal
.period
, aic
->msg_buf
[3]);
687 ti
->current
.offset
= aic
->msg_buf
[4] =
688 min(ti
->goal
.offset
, aic
->msg_buf
[4]);
690 * The target initiated the negotiation,
691 * send back a response.
693 aic_sched_msgout(aic
, 0);
695 ti
->flags
&= ~(TINFO_SDTR_SENT
|TINFO_SDTR_NEGO
);
696 ti
->scsirate
= ti
->current
.offset
? ti
->current
.offset
|
697 ((ti
->current
.period
* 4 + 49) / 50 - 2) << 4 : 0;
698 aic_outb(aic
, SCSIRATE
, ti
->scsirate
);
699 memset(&neg
, 0, sizeof (neg
));
700 neg
.protocol
= PROTO_SCSI
;
701 neg
.protocol_version
= SCSI_REV_2
;
702 neg
.transport
= XPORT_SPI
;
703 neg
.transport_version
= 2;
704 spi
->sync_period
= ti
->goal
.period
= ti
->current
.period
;
705 spi
->sync_offset
= ti
->goal
.offset
= ti
->current
.offset
;
706 spi
->valid
= CTS_SPI_VALID_SYNC_RATE
707 | CTS_SPI_VALID_SYNC_OFFSET
;
708 ccb_h
= &scb
->ccb
->ccb_h
;
709 xpt_setup_ccb(&neg
.ccb_h
, ccb_h
->path
, 1);
710 xpt_async(AC_TRANSFER_NEG
, ccb_h
->path
, &neg
);
714 aic_sched_msgout(aic
, MSG_MESSAGE_REJECT
);
720 ccb_h
= &scb
->ccb
->ccb_h
;
721 TAILQ_INSERT_TAIL(&aic
->nexus_ccbs
, ccb_h
, sim_links
.tqe
);
722 scb
->flags
|= SCB_DISCONNECTED
;
723 aic
->flags
|= AIC_BUSFREE_OK
;
725 CAM_DEBUG(ccb_h
->path
, CAM_DEBUG_TRACE
, ("disconnected\n"));
727 case MSG_MESSAGE_REJECT
:
728 switch (aic
->msg_outq
& -aic
->msg_outq
) {
731 ti
= &aic
->tinfo
[scb
->target
];
732 ti
->flags
&= ~TINFO_TAG_ENB
;
733 ti
->lubusy
|= 1 << scb
->lun
;
737 ti
= &aic
->tinfo
[scb
->target
];
738 ti
->current
.period
= ti
->goal
.period
= 0;
739 ti
->current
.offset
= ti
->goal
.offset
= 0;
740 ti
->flags
&= ~(TINFO_SDTR_SENT
|TINFO_SDTR_NEGO
);
742 aic_outb(aic
, SCSIRATE
, ti
->scsirate
);
743 memset(&neg
, 0, sizeof (neg
));
744 neg
.protocol
= PROTO_SCSI
;
745 neg
.protocol_version
= SCSI_REV_2
;
746 neg
.transport
= XPORT_SPI
;
747 neg
.transport_version
= 2;
748 spi
->sync_period
= ti
->current
.period
;
749 spi
->sync_offset
= ti
->current
.offset
;
750 spi
->valid
= CTS_SPI_VALID_SYNC_RATE
751 | CTS_SPI_VALID_SYNC_OFFSET
;
752 ccb_h
= &scb
->ccb
->ccb_h
;
753 xpt_setup_ccb(&neg
.ccb_h
, ccb_h
->path
, 1);
754 xpt_async(AC_TRANSFER_NEG
, ccb_h
->path
, &neg
);
760 case MSG_SAVEDATAPOINTER
:
762 case MSG_RESTOREPOINTERS
:
767 aic_sched_msgout(aic
, MSG_MESSAGE_REJECT
);
776 aic_msgout(struct aic_softc
*aic
)
780 struct aic_tinfo
*ti
;
783 CAM_DEBUG_PRINT(CAM_DEBUG_TRACE
, ("aic_msgout\n"));
785 aic_outb(aic
, SIMODE1
, ENSCSIRST
|ENPHASEMIS
|ENBUSFREE
);
786 aic_outb(aic
, SXFRCTL0
, CHEN
|SPIOEN
);
789 * If the previous phase is also the message out phase,
790 * we need to retransmit all the messages, probably
791 * because the target has detected a parity error during
792 * the past transmission.
794 if (aic
->prev_phase
== PH_MSGOUT
)
795 aic
->msg_outq
= aic
->msg_sent
;
798 int q
= aic
->msg_outq
;
799 if (msgidx
> 0 && msgidx
== aic
->msg_len
) {
800 /* complete message sent, start the next one */
808 /* setup the message */
810 case AIC_MSG_IDENTIFY
:
813 ti
= &aic
->tinfo
[scb
->target
];
814 aic
->msg_buf
[0] = MSG_IDENTIFY(scb
->lun
,
815 (ti
->flags
& TINFO_DISC_ENB
) &&
816 !(ccb
->ccb_h
.flags
& CAM_DIS_DISCONNECT
));
822 aic
->msg_buf
[0] = ccb
->csio
.tag_action
;
823 aic
->msg_buf
[1] = scb
->tag
;
828 ti
= &aic
->tinfo
[scb
->target
];
829 aic
->msg_buf
[0] = MSG_EXTENDED
;
830 aic
->msg_buf
[1] = MSG_EXT_SDTR_LEN
;
831 aic
->msg_buf
[2] = MSG_EXT_SDTR
;
832 aic
->msg_buf
[3] = ti
->goal
.period
;
833 aic
->msg_buf
[4] = ti
->goal
.offset
;
834 aic
->msg_len
= MSG_EXT_SDTR_LEN
+ 2;
835 ti
->flags
|= TINFO_SDTR_SENT
;
838 /* a single message already in the buffer */
839 if (aic
->msg_buf
[0] == MSG_BUS_DEV_RESET
||
840 aic
->msg_buf
[0] == MSG_ABORT
||
841 aic
->msg_buf
[0] == MSG_ABORT_TAG
)
842 aic
->flags
|= AIC_BUSFREE_OK
;
847 * If this is the last message byte of all messages,
848 * clear ATNO to signal transmission complete.
850 if ((q
& (q
- 1)) == 0 && msgidx
== aic
->msg_len
- 1)
851 aic_outb(aic
, CLRSINT1
, CLRATNO
);
852 /* transmit the message byte */
853 aic_outb(aic
, SCSIDAT
, aic
->msg_buf
[msgidx
++]);
854 } while (aic_spiordy(aic
));
856 aic_outb(aic
, SXFRCTL0
, CHEN
);
857 aic_outb(aic
, SIMODE1
, ENSCSIRST
|ENBUSFREE
|ENREQINIT
);
864 aic_datain(struct aic_softc
*aic
)
866 struct aic_scb
*scb
= aic
->nexus
;
867 u_int8_t dmastat
, dmacntrl0
;
870 CAM_DEBUG_PRINT(CAM_DEBUG_TRACE
, ("aic_datain\n"));
872 aic_outb(aic
, SIMODE1
, ENSCSIRST
|ENPHASEMIS
|ENBUSFREE
);
873 aic_outb(aic
, SXFRCTL0
, SCSIEN
|DMAEN
|CHEN
);
876 if (aic
->flags
& AIC_DWIO_ENABLE
)
877 dmacntrl0
|= DWORDPIO
;
878 aic_outb(aic
, DMACNTRL0
, dmacntrl0
);
880 while (scb
->data_len
> 0) {
882 /* wait for the fifo to fill up or a phase change */
883 dmastat
= aic_inb(aic
, DMASTAT
);
884 if (dmastat
& (INTSTAT
|DFIFOFULL
))
887 if (dmastat
& DFIFOFULL
) {
891 * No more data, wait for the remaining bytes in
892 * the scsi fifo to be transfer to the host fifo.
894 while (!(aic_inb(aic
, SSTAT2
) & SEMPTY
))
896 n
= aic_inb(aic
, FIFOSTAT
);
898 n
= imin(scb
->data_len
, n
);
899 if (aic
->flags
& AIC_DWIO_ENABLE
) {
901 aic_insl(aic
, DMADATALONG
, scb
->data_ptr
, n
>>2);
902 scb
->data_ptr
+= n
& ~3;
903 scb
->data_len
-= n
& ~3;
908 aic_insw(aic
, DMADATA
, scb
->data_ptr
, n
>> 1);
909 scb
->data_ptr
+= n
& ~1;
910 scb
->data_len
-= n
& ~1;
915 aic_outb(aic
, DMACNTRL0
, ENDMA
|B8MODE
);
916 aic_insb(aic
, DMADATA
, scb
->data_ptr
, n
);
919 aic_outb(aic
, DMACNTRL0
, dmacntrl0
);
922 if (dmastat
& INTSTAT
)
926 aic_outb(aic
, SXFRCTL0
, CHEN
);
927 aic_outb(aic
, SIMODE1
, ENSCSIRST
|ENBUSFREE
|ENREQINIT
);
934 aic_dataout(struct aic_softc
*aic
)
936 struct aic_scb
*scb
= aic
->nexus
;
937 u_int8_t dmastat
, dmacntrl0
, sstat2
;
940 CAM_DEBUG_PRINT(CAM_DEBUG_TRACE
, ("aic_dataout\n"));
942 aic_outb(aic
, SIMODE1
, ENSCSIRST
|ENPHASEMIS
|ENBUSFREE
);
943 aic_outb(aic
, SXFRCTL0
, SCSIEN
|DMAEN
|CHEN
);
945 dmacntrl0
= ENDMA
|WRITE
;
946 if (aic
->flags
& AIC_DWIO_ENABLE
)
947 dmacntrl0
|= DWORDPIO
;
948 aic_outb(aic
, DMACNTRL0
, dmacntrl0
);
950 while (scb
->data_len
> 0) {
952 /* wait for the fifo to clear up or a phase change */
953 dmastat
= aic_inb(aic
, DMASTAT
);
954 if (dmastat
& (INTSTAT
|DFIFOEMP
))
957 if (dmastat
& INTSTAT
)
959 n
= imin(scb
->data_len
, FIFOSIZE
);
960 if (aic
->flags
& AIC_DWIO_ENABLE
) {
962 aic_outsl(aic
, DMADATALONG
, scb
->data_ptr
,n
>>2);
963 scb
->data_ptr
+= n
& ~3;
964 scb
->data_len
-= n
& ~3;
969 aic_outsw(aic
, DMADATA
, scb
->data_ptr
, n
>> 1);
970 scb
->data_ptr
+= n
& ~1;
971 scb
->data_len
-= n
& ~1;
976 aic_outb(aic
, DMACNTRL0
, ENDMA
|WRITE
|B8MODE
);
977 aic_outsb(aic
, DMADATA
, scb
->data_ptr
, n
);
980 aic_outb(aic
, DMACNTRL0
, dmacntrl0
);
985 /* wait until all bytes in the fifos are transmitted */
986 dmastat
= aic_inb(aic
, DMASTAT
);
987 sstat2
= aic_inb(aic
, SSTAT2
);
988 if ((dmastat
& DFIFOEMP
) && (sstat2
& SEMPTY
))
990 if (dmastat
& INTSTAT
) {
991 /* adjust for untransmitted bytes */
992 n
= aic_inb(aic
, FIFOSTAT
) + (sstat2
& 0xf);
996 aic_outb(aic
, SXFRCTL0
, CHEN
|CLRCH
);
997 aic_outb(aic
, DMACNTRL0
, RSTFIFO
);
1002 aic_outb(aic
, SXFRCTL0
, CHEN
);
1003 aic_outb(aic
, SIMODE1
, ENSCSIRST
|ENBUSFREE
|ENREQINIT
);
1007 * Send the scsi command.
1010 aic_cmd(struct aic_softc
*aic
)
1012 struct aic_scb
*scb
= aic
->nexus
;
1013 struct scsi_request_sense sense_cmd
;
1015 CAM_DEBUG_PRINT(CAM_DEBUG_TRACE
, ("aic_cmd\n"));
1017 if (scb
->flags
& SCB_SENSE
) {
1018 /* autosense request */
1019 sense_cmd
.opcode
= REQUEST_SENSE
;
1020 sense_cmd
.byte2
= scb
->lun
<< 5;
1021 sense_cmd
.length
= scb
->ccb
->csio
.sense_len
;
1022 sense_cmd
.control
= 0;
1023 sense_cmd
.unused
[0] = 0;
1024 sense_cmd
.unused
[1] = 0;
1025 scb
->cmd_ptr
= (u_int8_t
*)&sense_cmd
;
1026 scb
->cmd_len
= sizeof(sense_cmd
);
1027 scb
->data_ptr
= (u_int8_t
*)&scb
->ccb
->csio
.sense_data
;
1028 scb
->data_len
= scb
->ccb
->csio
.sense_len
;
1031 aic_outb(aic
, SIMODE1
, ENSCSIRST
|ENPHASEMIS
|ENBUSFREE
);
1032 aic_outb(aic
, DMACNTRL0
, ENDMA
|WRITE
);
1033 aic_outb(aic
, SXFRCTL0
, SCSIEN
|DMAEN
|CHEN
);
1034 aic_outsw(aic
, DMADATA
, (u_int16_t
*)scb
->cmd_ptr
, scb
->cmd_len
>> 1);
1035 while ((aic_inb(aic
, SSTAT2
) & SEMPTY
) == 0 &&
1036 (aic_inb(aic
, DMASTAT
) & INTSTAT
) == 0)
1038 aic_outb(aic
, SXFRCTL0
, CHEN
);
1039 aic_outb(aic
, SIMODE1
, ENSCSIRST
|ENBUSFREE
|ENREQINIT
);
1043 * Finish off a command. The caller is responsible to remove the ccb
1047 aic_done(struct aic_softc
*aic
, struct aic_scb
*scb
)
1049 union ccb
*ccb
= scb
->ccb
;
1051 CAM_DEBUG(ccb
->ccb_h
.path
, CAM_DEBUG_TRACE
,
1052 ("aic_done - ccb %p status %x resid %d\n",
1053 ccb
, ccb
->ccb_h
.status
, ccb
->csio
.resid
));
1055 callout_stop(&ccb
->ccb_h
.timeout_ch
);
1057 if ((scb
->flags
& SCB_DEVICE_RESET
) != 0 &&
1058 ccb
->ccb_h
.func_code
!= XPT_RESET_DEV
) {
1059 struct cam_path
*path
;
1060 struct ccb_hdr
*ccb_h
;
1063 error
= xpt_create_path(&path
, /*periph*/NULL
,
1064 cam_sim_path(aic
->sim
),
1068 if (error
== CAM_REQ_CMP
) {
1069 xpt_async(AC_SENT_BDR
, path
, NULL
);
1070 xpt_free_path(path
);
1073 ccb_h
= TAILQ_FIRST(&aic
->pending_ccbs
);
1074 while (ccb_h
!= NULL
) {
1075 struct aic_scb
*pending_scb
;
1077 pending_scb
= (struct aic_scb
*)ccb_h
->ccb_scb_ptr
;
1078 if (ccb_h
->target_id
== scb
->target
) {
1079 ccb_h
->status
|= CAM_BDR_SENT
;
1080 ccb_h
= TAILQ_NEXT(ccb_h
, sim_links
.tqe
);
1081 TAILQ_REMOVE(&aic
->pending_ccbs
,
1082 &pending_scb
->ccb
->ccb_h
, sim_links
.tqe
);
1083 aic_done(aic
, pending_scb
);
1085 callout_reset(&ccb_h
->timeout_ch
,
1086 (ccb_h
->timeout
* hz
) / 1000,
1087 aic_timeout
, pending_scb
);
1088 ccb_h
= TAILQ_NEXT(ccb_h
, sim_links
.tqe
);
1092 ccb_h
= TAILQ_FIRST(&aic
->nexus_ccbs
);
1093 while (ccb_h
!= NULL
) {
1094 struct aic_scb
*nexus_scb
;
1096 nexus_scb
= (struct aic_scb
*)ccb_h
->ccb_scb_ptr
;
1097 if (ccb_h
->target_id
== scb
->target
) {
1098 ccb_h
->status
|= CAM_BDR_SENT
;
1099 ccb_h
= TAILQ_NEXT(ccb_h
, sim_links
.tqe
);
1100 TAILQ_REMOVE(&aic
->nexus_ccbs
,
1101 &nexus_scb
->ccb
->ccb_h
, sim_links
.tqe
);
1102 aic_done(aic
, nexus_scb
);
1104 callout_reset(&ccb_h
->timeout_ch
,
1105 (ccb_h
->timeout
* hz
) / 1000,
1106 aic_timeout
, nexus_scb
);
1107 ccb_h
= TAILQ_NEXT(ccb_h
, sim_links
.tqe
);
1112 if (aic
->nexus
== scb
|| scb
->flags
& SCB_DISCONNECTED
)
1113 aic
->tinfo
[scb
->target
].lubusy
&= ~(1 << scb
->lun
);
1115 if (aic
->nexus
== scb
) {
1118 aic_free_scb(aic
, scb
);
1123 aic_poll(struct cam_sim
*sim
)
1125 aic_intr(cam_sim_softc(sim
));
1129 aic_timeout(void *arg
)
1131 struct aic_scb
*scb
= (struct aic_scb
*)arg
;
1132 union ccb
*ccb
= scb
->ccb
;
1133 struct aic_softc
*aic
= (struct aic_softc
*)ccb
->ccb_h
.ccb_aic_ptr
;
1135 xpt_print_path(ccb
->ccb_h
.path
);
1136 kprintf("ccb %p - timed out", ccb
);
1137 if (aic
->nexus
&& aic
->nexus
!= scb
)
1138 kprintf(", nexus %p", aic
->nexus
->ccb
);
1139 kprintf(", phase 0x%x, state %d\n", aic_inb(aic
, SCSISIGI
), aic
->state
);
1143 if ((scb
->flags
& SCB_ACTIVE
) == 0) {
1145 xpt_print_path(ccb
->ccb_h
.path
);
1146 kprintf("ccb %p - timed out already completed\n", ccb
);
1150 if ((scb
->flags
& SCB_DEVICE_RESET
) == 0 && aic
->nexus
== scb
) {
1151 struct ccb_hdr
*ccb_h
= &scb
->ccb
->ccb_h
;
1153 if ((ccb_h
->status
& CAM_RELEASE_SIMQ
) == 0) {
1154 xpt_freeze_simq(aic
->sim
, /*count*/1);
1155 ccb_h
->status
|= CAM_RELEASE_SIMQ
;
1158 TAILQ_FOREACH(ccb_h
, &aic
->pending_ccbs
, sim_links
.tqe
)
1159 callout_stop(&ccb_h
->timeout_ch
);
1161 TAILQ_FOREACH(ccb_h
, &aic
->nexus_ccbs
, sim_links
.tqe
)
1162 callout_stop(&ccb_h
->timeout_ch
);
1164 scb
->flags
|= SCB_DEVICE_RESET
;
1165 callout_reset(&ccb
->ccb_h
.timeout_ch
, 5 * hz
, aic_timeout
, scb
);
1166 aic_sched_msgout(aic
, MSG_BUS_DEV_RESET
);
1168 if (aic
->nexus
== scb
) {
1169 ccb
->ccb_h
.status
|= CAM_CMD_TIMEOUT
;
1172 aic_reset(aic
, /*initiate_reset*/TRUE
);
1181 struct aic_softc
*aic
= (struct aic_softc
*)arg
;
1182 u_int8_t sstat0
, sstat1
;
1184 struct aic_scb
*scb
;
1186 if (!(aic_inb(aic
, DMASTAT
) & INTSTAT
))
1189 aic_outb(aic
, DMACNTRL0
, 0);
1191 sstat0
= aic_inb(aic
, SSTAT0
);
1192 sstat1
= aic_inb(aic
, SSTAT1
);
1194 if ((sstat1
& SCSIRSTI
) != 0) {
1195 /* a device-initiated bus reset */
1196 aic_outb(aic
, CLRSINT1
, CLRSCSIRSTI
);
1197 aic_reset(aic
, /*initiate_reset*/FALSE
);
1201 if ((sstat1
& SCSIPERR
) != 0) {
1202 aic_outb(aic
, CLRSINT1
, CLRSCSIPERR
);
1203 aic_sched_msgout(aic
, MSG_PARITY_ERROR
);
1204 aic_outb(aic
, DMACNTRL0
, INTEN
);
1208 if (aic_inb(aic
, SSTAT4
)) {
1209 aic_outb(aic
, CLRSERR
, CLRSYNCERR
|CLRFWERR
|CLRFRERR
);
1210 aic_reset(aic
, /*initiate_reset*/TRUE
);
1214 if (aic
->state
<= AIC_SELECTING
) {
1215 if ((sstat0
& SELDI
) != 0) {
1216 aic_reselected(aic
);
1217 aic_outb(aic
, DMACNTRL0
, INTEN
);
1221 if ((sstat0
& SELDO
) != 0) {
1223 aic_outb(aic
, DMACNTRL0
, INTEN
);
1227 if ((sstat1
& SELTO
) != 0) {
1230 ccb
->ccb_h
.status
= CAM_SEL_TIMEOUT
;
1232 while ((sstat1
& BUSFREE
) == 0)
1233 sstat1
= aic_inb(aic
, SSTAT1
);
1234 aic
->flags
|= AIC_BUSFREE_OK
;
1238 if ((sstat1
& BUSFREE
) != 0) {
1239 aic_outb(aic
, SCSISEQ
, 0);
1240 aic_outb(aic
, CLRSINT0
, sstat0
);
1241 aic_outb(aic
, CLRSINT1
, sstat1
);
1242 if ((scb
= aic
->nexus
)) {
1243 if ((aic
->flags
& AIC_BUSFREE_OK
) == 0) {
1245 ccb
->ccb_h
.status
= CAM_UNEXP_BUSFREE
;
1247 } else if (scb
->flags
& SCB_DEVICE_RESET
) {
1249 if (ccb
->ccb_h
.func_code
== XPT_RESET_DEV
) {
1250 xpt_async(AC_SENT_BDR
,
1251 ccb
->ccb_h
.path
, NULL
);
1252 ccb
->ccb_h
.status
|= CAM_REQ_CMP
;
1254 ccb
->ccb_h
.status
|= CAM_CMD_TIMEOUT
;
1256 } else if (scb
->flags
& SCB_SENSE
) {
1257 /* autosense request */
1258 aic
->flags
&= ~AIC_BUSFREE_OK
;
1259 aic
->tinfo
[scb
->target
].lubusy
&=
1262 aic_outb(aic
, DMACNTRL0
, INTEN
);
1266 aic
->flags
&= ~AIC_BUSFREE_OK
;
1267 aic
->state
= AIC_IDLE
;
1269 aic_outb(aic
, DMACNTRL0
, INTEN
);
1273 if ((sstat1
& REQINIT
) != 0) {
1274 u_int8_t phase
= aic_inb(aic
, SCSISIGI
) & PH_MASK
;
1275 aic_outb(aic
, SCSISIGO
, phase
);
1276 aic_outb(aic
, CLRSINT1
, CLRPHASECHG
);
1288 aic_outb(aic
, DMACNTRL0
, 0);
1289 aic_outb(aic
, SXFRCTL0
, CHEN
|SPIOEN
);
1290 scb
->status
= aic_inb(aic
, SCSIDAT
);
1291 aic_outb(aic
, SXFRCTL0
, CHEN
);
1303 aic
->prev_phase
= phase
;
1304 aic_outb(aic
, DMACNTRL0
, INTEN
);
1308 kprintf("aic_intr: unexpected intr sstat0 %x sstat1 %x\n",
1310 aic_outb(aic
, DMACNTRL0
, INTEN
);
1317 aic_chip_reset(struct aic_softc
*aic
)
1320 * Doc. recommends to clear these two registers before
1321 * operations commence
1323 aic_outb(aic
, SCSITEST
, 0);
1324 aic_outb(aic
, TEST
, 0);
1326 /* Reset SCSI-FIFO and abort any transfers */
1327 aic_outb(aic
, SXFRCTL0
, CHEN
|CLRCH
|CLRSTCNT
);
1329 /* Reset HOST-FIFO */
1330 aic_outb(aic
, DMACNTRL0
, RSTFIFO
);
1331 aic_outb(aic
, DMACNTRL1
, 0);
1333 /* Disable all selection features */
1334 aic_outb(aic
, SCSISEQ
, 0);
1335 aic_outb(aic
, SXFRCTL1
, 0);
1337 /* Disable interrupts */
1338 aic_outb(aic
, SIMODE0
, 0);
1339 aic_outb(aic
, SIMODE1
, 0);
1341 /* Clear interrupts */
1342 aic_outb(aic
, CLRSINT0
, 0x7f);
1343 aic_outb(aic
, CLRSINT1
, 0xef);
1345 /* Disable synchronous transfers */
1346 aic_outb(aic
, SCSIRATE
, 0);
1348 /* Haven't seen ant errors (yet) */
1349 aic_outb(aic
, CLRSERR
, 0x07);
1351 /* Set our SCSI-ID */
1352 aic_outb(aic
, SCSIID
, aic
->initiator
<< OID_S
);
1353 aic_outb(aic
, BRSTCNTRL
, EISA_BRST_TIM
);
1357 * Reset the SCSI bus
1360 aic_scsi_reset(struct aic_softc
*aic
)
1362 aic_outb(aic
, SCSISEQ
, SCSIRSTO
);
1364 aic_outb(aic
, SCSISEQ
, 0);
1369 * Reset. Abort all pending commands.
1372 aic_reset(struct aic_softc
*aic
, int initiate_reset
)
1374 struct ccb_hdr
*ccb_h
;
1376 CAM_DEBUG_PRINT(CAM_DEBUG_TRACE
, ("aic_reset\n"));
1379 aic_scsi_reset(aic
);
1380 aic_chip_reset(aic
);
1382 xpt_async(AC_BUS_RESET
, aic
->path
, NULL
);
1384 while ((ccb_h
= TAILQ_FIRST(&aic
->pending_ccbs
)) != NULL
) {
1385 TAILQ_REMOVE(&aic
->pending_ccbs
, ccb_h
, sim_links
.tqe
);
1386 ccb_h
->status
|= CAM_SCSI_BUS_RESET
;
1387 aic_done(aic
, (struct aic_scb
*)ccb_h
->ccb_scb_ptr
);
1390 while ((ccb_h
= TAILQ_FIRST(&aic
->nexus_ccbs
)) != NULL
) {
1391 TAILQ_REMOVE(&aic
->nexus_ccbs
, ccb_h
, sim_links
.tqe
);
1392 ccb_h
->status
|= CAM_SCSI_BUS_RESET
;
1393 aic_done(aic
, (struct aic_scb
*)ccb_h
->ccb_scb_ptr
);
1397 ccb_h
= &aic
->nexus
->ccb
->ccb_h
;
1398 ccb_h
->status
|= CAM_SCSI_BUS_RESET
;
1399 aic_done(aic
, aic
->nexus
);
1402 aic
->state
= AIC_IDLE
;
1403 aic_outb(aic
, DMACNTRL0
, INTEN
);
1406 static char *aic_chip_names
[] = {
1407 "AIC6260", "AIC6360", "AIC6370", "GM82C700",
1413 } aic_chip_ids
[] = {
1414 { AIC6360
, IDSTRING_AIC6360
},
1415 { AIC6370
, IDSTRING_AIC6370
},
1416 { GM82C700
, IDSTRING_GM82C700
},
1420 aic_init(struct aic_softc
*aic
)
1422 struct aic_scb
*scb
;
1423 struct aic_tinfo
*ti
;
1424 u_int8_t porta
, portb
;
1428 TAILQ_INIT(&aic
->pending_ccbs
);
1429 TAILQ_INIT(&aic
->nexus_ccbs
);
1431 aic
->state
= AIC_IDLE
;
1432 aic
->prev_phase
= -1;
1435 aic_chip_reset(aic
);
1436 aic_scsi_reset(aic
);
1438 /* determine the chip type from its ID string */
1439 aic
->chip_type
= AIC6260
;
1440 aic_insb(aic
, ID
, chip_id
, sizeof(chip_id
) - 1);
1441 chip_id
[sizeof(chip_id
) - 1] = '\0';
1442 for (i
= 0; i
< sizeof(aic_chip_ids
) / sizeof(aic_chip_ids
[0]); i
++) {
1443 if (!strcmp(chip_id
, aic_chip_ids
[i
].idstring
)) {
1444 aic
->chip_type
= aic_chip_ids
[i
].type
;
1449 porta
= aic_inb(aic
, PORTA
);
1450 portb
= aic_inb(aic
, PORTB
);
1452 aic
->initiator
= PORTA_ID(porta
);
1453 if (PORTA_PARITY(porta
))
1454 aic
->flags
|= AIC_PARITY_ENABLE
;
1455 if (PORTB_DISC(portb
))
1456 aic
->flags
|= AIC_DISC_ENABLE
;
1457 if (PORTB_DMA(portb
))
1458 aic
->flags
|= AIC_DMA_ENABLE
;
1461 * We can do fast SCSI (10MHz clock rate) if bit 4 of portb
1462 * is set and we've got a 6360. The 6260 can only do standard
1465 if (aic
->chip_type
> AIC6260
|| aic_inb(aic
, REV
)) {
1466 if (PORTB_FSYNC(portb
))
1467 aic
->flags
|= AIC_FAST_ENABLE
;
1468 aic
->flags
|= AIC_DWIO_ENABLE
;
1471 if (aic
->flags
& AIC_FAST_ENABLE
)
1472 aic
->max_period
= AIC_FAST_SYNC_PERIOD
;
1474 aic
->max_period
= AIC_SYNC_PERIOD
;
1475 aic
->min_period
= AIC_MIN_SYNC_PERIOD
;
1478 for (i
= 255; i
>= 0; i
--) {
1479 scb
= &aic
->scbs
[i
];
1481 aic_free_scb(aic
, scb
);
1484 for (i
= 0; i
< 8; i
++) {
1485 if (i
== aic
->initiator
)
1487 ti
= &aic
->tinfo
[i
];
1488 bzero(ti
, sizeof(*ti
));
1489 ti
->flags
= TINFO_TAG_ENB
;
1490 if (aic
->flags
& AIC_DISC_ENABLE
)
1491 ti
->flags
|= TINFO_DISC_ENB
;
1492 ti
->user
.period
= aic
->max_period
;
1493 ti
->user
.offset
= AIC_SYNC_OFFSET
;
1497 aic_outb(aic
, DMACNTRL0
, INTEN
);
1501 aic_probe(struct aic_softc
*aic
)
1505 /* Remove aic6360 from possible powerdown mode */
1506 aic_outb(aic
, DMACNTRL0
, 0);
1509 aic_outb(aic
, DMACNTRL1
, 0); /* Reset stack pointer */
1510 for (i
= 0; i
< STSIZE
; i
++)
1511 aic_outb(aic
, STACK
, i
);
1513 /* See if we can pull out the same sequence */
1514 aic_outb(aic
, DMACNTRL1
, 0);
1515 for (i
= 0; i
< STSIZE
&& aic_inb(aic
, STACK
) == i
; i
++)
1524 aic_attach(struct aic_softc
*aic
)
1527 * Construct our SIM entry
1529 aic
->sim
= cam_sim_alloc(aic_action
, aic_poll
, "aic", aic
,
1530 aic
->unit
, &sim_mplock
, 2, 256, NULL
);
1531 if (aic
->sim
== NULL
)
1534 if (xpt_bus_register(aic
->sim
, 0) != CAM_SUCCESS
) {
1535 cam_sim_free(aic
->sim
);
1539 if (xpt_create_path(&aic
->path
, /*periph*/NULL
,
1540 cam_sim_path(aic
->sim
), CAM_TARGET_WILDCARD
,
1541 CAM_LUN_WILDCARD
) != CAM_REQ_CMP
) {
1542 xpt_bus_deregister(cam_sim_path(aic
->sim
));
1543 cam_sim_free(aic
->sim
);
1549 kprintf("aic%d: %s", aic
->unit
, aic_chip_names
[aic
->chip_type
]);
1550 if (aic
->flags
& AIC_DMA_ENABLE
)
1552 if (aic
->flags
& AIC_DISC_ENABLE
)
1553 kprintf(", disconnection");
1554 if (aic
->flags
& AIC_PARITY_ENABLE
)
1555 kprintf(", parity check");
1556 if (aic
->flags
& AIC_FAST_ENABLE
)
1557 kprintf(", fast SCSI");
1563 aic_detach(struct aic_softc
*aic
)
1565 xpt_async(AC_LOST_DEVICE
, aic
->path
, NULL
);
1566 xpt_free_path(aic
->path
);
1567 xpt_bus_deregister(cam_sim_path(aic
->sim
));
1568 cam_sim_free(aic
->sim
);