1 | /* $NetBSD: aic7xxx_osm.c,v 1.38 2016/10/30 23:56:05 mlelstv Exp $ */ |
2 | |
3 | /* |
4 | * Bus independent FreeBSD shim for the aic7xxx based adaptec SCSI controllers |
5 | * |
6 | * Copyright (c) 1994-2001 Justin T. Gibbs. |
7 | * All rights reserved. |
8 | * |
9 | * Redistribution and use in source and binary forms, with or without |
10 | * modification, are permitted provided that the following conditions |
11 | * are met: |
12 | * 1. Redistributions of source code must retain the above copyright |
13 | * notice, this list of conditions, and the following disclaimer, |
14 | * without modification. |
15 | * 2. The name of the author may not be used to endorse or promote products |
16 | * derived from this software without specific prior written permission. |
17 | * |
18 | * Alternatively, this software may be distributed under the terms of the |
19 | * GNU Public License ("GPL"). |
20 | * |
21 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR |
25 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
31 | * SUCH DAMAGE. |
32 | * |
33 | * //depot/aic7xxx/freebsd/dev/aic7xxx/aic7xxx_osm.c#12 $ |
34 | * |
35 | * $FreeBSD: src/sys/dev/aic7xxx/aic7xxx_osm.c,v 1.31 2002/11/30 19:08:58 scottl Exp $ |
36 | */ |
37 | /* |
38 | * Ported from FreeBSD by Pascal Renauld, Network Storage Solutions, Inc. - April 2003 |
39 | */ |
40 | |
41 | #include <sys/cdefs.h> |
42 | __KERNEL_RCSID(0, "$NetBSD: aic7xxx_osm.c,v 1.38 2016/10/30 23:56:05 mlelstv Exp $" ); |
43 | |
44 | #include <dev/ic/aic7xxx_osm.h> |
45 | #include <dev/ic/aic7xxx_inline.h> |
46 | |
47 | #ifndef AHC_TMODE_ENABLE |
48 | #define AHC_TMODE_ENABLE 0 |
49 | #endif |
50 | |
51 | |
52 | static void ahc_action(struct scsipi_channel *chan, |
53 | scsipi_adapter_req_t req, void *arg); |
54 | static void ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs, |
55 | int nsegments); |
56 | static int ahc_poll(struct ahc_softc *ahc, int wait); |
57 | static void ahc_setup_data(struct ahc_softc *ahc, |
58 | struct scsipi_xfer *xs, struct scb *scb); |
59 | static void ahc_set_recoveryscb(struct ahc_softc *ahc, struct scb *scb); |
60 | static int ahc_ioctl(struct scsipi_channel *channel, u_long cmd, |
61 | void *addr, int flag, struct proc *p); |
62 | |
63 | static bool ahc_pmf_suspend(device_t, const pmf_qual_t *); |
64 | static bool ahc_pmf_resume(device_t, const pmf_qual_t *); |
65 | static bool ahc_pmf_shutdown(device_t, int); |
66 | |
67 | |
68 | /* |
69 | * Attach all the sub-devices we can find |
70 | */ |
71 | int |
72 | ahc_attach(struct ahc_softc *ahc) |
73 | { |
74 | u_long s; |
75 | int i; |
76 | char ahc_info[256]; |
77 | |
78 | LIST_INIT(&ahc->pending_scbs); |
79 | for (i = 0; i < AHC_NUM_TARGETS; i++) |
80 | TAILQ_INIT(&ahc->untagged_queues[i]); |
81 | |
82 | ahc_lock(ahc, &s); |
83 | |
84 | ahc->sc_adapter.adapt_dev = ahc->sc_dev; |
85 | ahc->sc_adapter.adapt_nchannels = (ahc->features & AHC_TWIN) ? 2 : 1; |
86 | |
87 | ahc->sc_adapter.adapt_openings = ahc->scb_data->numscbs - 1; |
88 | ahc->sc_adapter.adapt_max_periph = 16; |
89 | |
90 | ahc->sc_adapter.adapt_ioctl = ahc_ioctl; |
91 | ahc->sc_adapter.adapt_minphys = ahc_minphys; |
92 | ahc->sc_adapter.adapt_request = ahc_action; |
93 | |
94 | ahc->sc_channel.chan_adapter = &ahc->sc_adapter; |
95 | ahc->sc_channel.chan_bustype = &scsi_bustype; |
96 | ahc->sc_channel.chan_channel = 0; |
97 | ahc->sc_channel.chan_ntargets = (ahc->features & AHC_WIDE) ? 16 : 8; |
98 | ahc->sc_channel.chan_nluns = 8 /*AHC_NUM_LUNS*/; |
99 | ahc->sc_channel.chan_id = ahc->our_id; |
100 | ahc->sc_channel.chan_flags |= SCSIPI_CHAN_CANGROW; |
101 | |
102 | if (ahc->features & AHC_TWIN) { |
103 | ahc->sc_channel_b = ahc->sc_channel; |
104 | ahc->sc_channel_b.chan_id = ahc->our_id_b; |
105 | ahc->sc_channel_b.chan_channel = 1; |
106 | } |
107 | |
108 | ahc_controller_info(ahc, ahc_info, sizeof(ahc_info)); |
109 | printf("%s: %s\n" , device_xname(ahc->sc_dev), ahc_info); |
110 | |
111 | if ((ahc->flags & AHC_PRIMARY_CHANNEL) == 0) { |
112 | ahc->sc_child = config_found(ahc->sc_dev, |
113 | &ahc->sc_channel, scsiprint); |
114 | if (ahc->features & AHC_TWIN) |
115 | ahc->sc_child_b = config_found(ahc->sc_dev, |
116 | &ahc->sc_channel_b, scsiprint); |
117 | } else { |
118 | if (ahc->features & AHC_TWIN) |
119 | ahc->sc_child = config_found(ahc->sc_dev, |
120 | &ahc->sc_channel_b, scsiprint); |
121 | ahc->sc_child_b = config_found(ahc->sc_dev, |
122 | &ahc->sc_channel, scsiprint); |
123 | } |
124 | |
125 | ahc_intr_enable(ahc, TRUE); |
126 | |
127 | if (ahc->flags & AHC_RESET_BUS_A) |
128 | ahc_reset_channel(ahc, 'A', TRUE); |
129 | if ((ahc->features & AHC_TWIN) && ahc->flags & AHC_RESET_BUS_B) |
130 | ahc_reset_channel(ahc, 'B', TRUE); |
131 | |
132 | if (!pmf_device_register1(ahc->sc_dev, |
133 | ahc_pmf_suspend, ahc_pmf_resume, ahc_pmf_shutdown)) |
134 | aprint_error_dev(ahc->sc_dev, |
135 | "couldn't establish power handler\n" ); |
136 | |
137 | ahc_unlock(ahc, &s); |
138 | return (1); |
139 | } |
140 | |
141 | /* |
142 | * XXX we should call the real suspend and resume functions here |
143 | * but pmf(9) stuff on cardbus backend is untested yet |
144 | */ |
145 | |
146 | static bool |
147 | ahc_pmf_suspend(device_t dev, const pmf_qual_t *qual) |
148 | { |
149 | struct ahc_softc *sc = device_private(dev); |
150 | #if 0 |
151 | return (ahc_suspend(sc) == 0); |
152 | #else |
153 | ahc_shutdown(sc); |
154 | return true; |
155 | #endif |
156 | } |
157 | |
158 | static bool |
159 | ahc_pmf_resume(device_t dev, const pmf_qual_t *qual) |
160 | { |
161 | #if 0 |
162 | struct ahc_softc *sc = device_private(dev); |
163 | |
164 | return (ahc_resume(sc) == 0); |
165 | #else |
166 | return true; |
167 | #endif |
168 | } |
169 | |
170 | static bool |
171 | ahc_pmf_shutdown(device_t dev, int howto) |
172 | { |
173 | struct ahc_softc *sc = device_private(dev); |
174 | |
175 | /* Disable all interrupt sources by resetting the controller */ |
176 | ahc_shutdown(sc); |
177 | |
178 | return true; |
179 | } |
180 | |
181 | /* |
182 | * Catch an interrupt from the adapter |
183 | */ |
184 | void |
185 | ahc_platform_intr(void *arg) |
186 | { |
187 | struct ahc_softc *ahc; |
188 | |
189 | ahc = arg; |
190 | ahc_intr(ahc); |
191 | } |
192 | |
193 | /* |
194 | * We have an scb which has been processed by the |
195 | * adaptor, now we look to see how the operation |
196 | * went. |
197 | */ |
198 | void |
199 | ahc_done(struct ahc_softc *ahc, struct scb *scb) |
200 | { |
201 | struct scsipi_xfer *xs; |
202 | struct scsipi_periph *periph; |
203 | u_long s; |
204 | |
205 | xs = scb->xs; |
206 | periph = xs->xs_periph; |
207 | LIST_REMOVE(scb, pending_links); |
208 | if ((scb->flags & SCB_UNTAGGEDQ) != 0) { |
209 | struct scb_tailq *untagged_q; |
210 | int target_offset; |
211 | |
212 | target_offset = SCB_GET_TARGET_OFFSET(ahc, scb); |
213 | untagged_q = &ahc->untagged_queues[target_offset]; |
214 | TAILQ_REMOVE(untagged_q, scb, links.tqe); |
215 | scb->flags &= ~SCB_UNTAGGEDQ; |
216 | ahc_run_untagged_queue(ahc, untagged_q); |
217 | } |
218 | |
219 | callout_stop(&scb->xs->xs_callout); |
220 | |
221 | if (xs->datalen) { |
222 | int op; |
223 | |
224 | if (xs->xs_control & XS_CTL_DATA_IN) |
225 | op = BUS_DMASYNC_POSTREAD; |
226 | else |
227 | op = BUS_DMASYNC_POSTWRITE; |
228 | bus_dmamap_sync(ahc->parent_dmat, scb->dmamap, 0, |
229 | scb->dmamap->dm_mapsize, op); |
230 | bus_dmamap_unload(ahc->parent_dmat, scb->dmamap); |
231 | } |
232 | |
233 | /* |
234 | * If the recovery SCB completes, we have to be |
235 | * out of our timeout. |
236 | */ |
237 | if ((scb->flags & SCB_RECOVERY_SCB) != 0) { |
238 | struct scb *list_scb; |
239 | |
240 | /* |
241 | * We were able to complete the command successfully, |
242 | * so reinstate the timeouts for all other pending |
243 | * commands. |
244 | */ |
245 | LIST_FOREACH(list_scb, &ahc->pending_scbs, pending_links) { |
246 | if (!(list_scb->xs->xs_control & XS_CTL_POLL)) { |
247 | callout_reset(&list_scb->xs->xs_callout, |
248 | (list_scb->xs->timeout > 1000000) ? |
249 | (list_scb->xs->timeout / 1000) * hz : |
250 | (list_scb->xs->timeout * hz) / 1000, |
251 | ahc_timeout, list_scb); |
252 | } |
253 | } |
254 | |
255 | if (ahc_get_transaction_status(scb) == CAM_BDR_SENT |
256 | || ahc_get_transaction_status(scb) == CAM_REQ_ABORTED) |
257 | ahc_set_transaction_status(scb, CAM_CMD_TIMEOUT); |
258 | scsipi_printaddr(xs->xs_periph); |
259 | printf("%s: no longer in timeout, status = %x\n" , |
260 | ahc_name(ahc), xs->status); |
261 | |
262 | scsipi_channel_thaw(&ahc->sc_channel, 1); |
263 | if (ahc->features & AHC_TWIN) |
264 | scsipi_channel_thaw(&ahc->sc_channel_b, 1); |
265 | } |
266 | |
267 | /* Don't clobber any existing error state */ |
268 | if (xs->error != XS_NOERROR) { |
269 | /* Don't clobber any existing error state */ |
270 | } else if ((scb->flags & SCB_SENSE) != 0) { |
271 | /* |
272 | * We performed autosense retrieval. |
273 | * |
274 | * Zero any sense not transferred by the |
275 | * device. The SCSI spec mandates that any |
276 | * untransferred data should be assumed to be |
277 | * zero. Complete the 'bounce' of sense information |
278 | * through buffers accessible via bus-space by |
279 | * copying it into the clients csio. |
280 | */ |
281 | memset(&xs->sense.scsi_sense, 0, sizeof(xs->sense.scsi_sense)); |
282 | memcpy(&xs->sense.scsi_sense, |
283 | ahc_get_sense_buf(ahc, scb), |
284 | sizeof(xs->sense.scsi_sense)); |
285 | xs->error = XS_SENSE; |
286 | } |
287 | if (scb->flags & SCB_FREEZE_QUEUE) { |
288 | scsipi_periph_thaw(periph, 1); |
289 | scb->flags &= ~SCB_FREEZE_QUEUE; |
290 | } |
291 | |
292 | ahc_lock(ahc, &s); |
293 | ahc_free_scb(ahc, scb); |
294 | ahc_unlock(ahc, &s); |
295 | |
296 | scsipi_done(xs); |
297 | } |
298 | |
299 | static int |
300 | ahc_ioctl(struct scsipi_channel *channel, u_long cmd, void *addr, |
301 | int flag, struct proc *p) |
302 | { |
303 | struct ahc_softc *ahc; |
304 | int s, ret = ENOTTY; |
305 | |
306 | ahc = device_private(channel->chan_adapter->adapt_dev); |
307 | |
308 | switch (cmd) { |
309 | case SCBUSIORESET: |
310 | s = splbio(); |
311 | ahc_reset_channel(ahc, channel->chan_channel == 1 ? 'B' : 'A', |
312 | TRUE); |
313 | splx(s); |
314 | ret = 0; |
315 | break; |
316 | default: |
317 | break; |
318 | } |
319 | |
320 | return ret; |
321 | } |
322 | |
323 | static void |
324 | ahc_action(struct scsipi_channel *chan, scsipi_adapter_req_t req, void *arg) |
325 | { |
326 | struct ahc_softc *ahc; |
327 | int s; |
328 | struct ahc_initiator_tinfo *tinfo; |
329 | struct ahc_tmode_tstate *tstate; |
330 | |
331 | ahc = device_private(chan->chan_adapter->adapt_dev); |
332 | |
333 | switch (req) { |
334 | |
335 | case ADAPTER_REQ_RUN_XFER: |
336 | { |
337 | struct scsipi_xfer *xs; |
338 | struct scsipi_periph *periph; |
339 | struct scb *scb; |
340 | struct hardware_scb *hscb; |
341 | u_int target_id; |
342 | u_int our_id; |
343 | u_long ss; |
344 | |
345 | xs = arg; |
346 | periph = xs->xs_periph; |
347 | |
348 | target_id = periph->periph_target; |
349 | our_id = ahc->our_id; |
350 | |
351 | SC_DEBUG(xs->xs_periph, SCSIPI_DB3, ("ahc_action\n" )); |
352 | |
353 | /* |
354 | * get an scb to use. |
355 | */ |
356 | ahc_lock(ahc, &ss); |
357 | if ((scb = ahc_get_scb(ahc)) == NULL) { |
358 | xs->error = XS_RESOURCE_SHORTAGE; |
359 | ahc_unlock(ahc, &ss); |
360 | scsipi_done(xs); |
361 | return; |
362 | } |
363 | ahc_unlock(ahc, &ss); |
364 | |
365 | hscb = scb->hscb; |
366 | |
367 | SC_DEBUG(periph, SCSIPI_DB3, ("start scb(%p)\n" , scb)); |
368 | scb->xs = xs; |
369 | |
370 | /* |
371 | * Put all the arguments for the xfer in the scb |
372 | */ |
373 | hscb->control = 0; |
374 | hscb->scsiid = BUILD_SCSIID(ahc, 0, target_id, our_id); |
375 | hscb->lun = periph->periph_lun; |
376 | if (xs->xs_control & XS_CTL_RESET) { |
377 | hscb->cdb_len = 0; |
378 | scb->flags |= SCB_DEVICE_RESET; |
379 | hscb->control |= MK_MESSAGE; |
380 | ahc_execute_scb(scb, NULL, 0); |
381 | } |
382 | |
383 | ahc_setup_data(ahc, xs, scb); |
384 | |
385 | break; |
386 | } |
387 | case ADAPTER_REQ_GROW_RESOURCES: |
388 | #ifdef AHC_DEBUG |
389 | printf("%s: ADAPTER_REQ_GROW_RESOURCES\n" , ahc_name(ahc)); |
390 | #endif |
391 | chan->chan_adapter->adapt_openings += ahc_alloc_scbs(ahc); |
392 | if (ahc->scb_data->numscbs >= AHC_SCB_MAX_ALLOC) |
393 | chan->chan_flags &= ~SCSIPI_CHAN_CANGROW; |
394 | return; |
395 | |
396 | case ADAPTER_REQ_SET_XFER_MODE: |
397 | { |
398 | struct scsipi_xfer_mode *xm = arg; |
399 | struct ahc_devinfo devinfo; |
400 | int target_id, our_id, first; |
401 | u_int width; |
402 | char channel; |
403 | u_int ppr_options = 0, period, offset; |
404 | struct ahc_syncrate *syncrate; |
405 | uint16_t old_autoneg; |
406 | |
407 | target_id = xm->xm_target; |
408 | our_id = chan->chan_id; |
409 | channel = (chan->chan_channel == 1) ? 'B' : 'A'; |
410 | s = splbio(); |
411 | tinfo = ahc_fetch_transinfo(ahc, channel, our_id, target_id, |
412 | &tstate); |
413 | ahc_compile_devinfo(&devinfo, our_id, target_id, |
414 | 0, channel, ROLE_INITIATOR); |
415 | |
416 | old_autoneg = tstate->auto_negotiate; |
417 | |
418 | /* |
419 | * XXX since the period and offset are not provided here, |
420 | * fake things by forcing a renegotiation using the user |
421 | * settings if this is called for the first time (i.e. |
422 | * during probe). Also, cap various values at the user |
423 | * values, assuming that the user set it up that way. |
424 | */ |
425 | if (ahc->inited_target[target_id] == 0) { |
426 | period = tinfo->user.period; |
427 | offset = tinfo->user.offset; |
428 | ppr_options = tinfo->user.ppr_options; |
429 | width = tinfo->user.width; |
430 | tstate->tagenable |= |
431 | (ahc->user_tagenable & devinfo.target_mask); |
432 | tstate->discenable |= |
433 | (ahc->user_discenable & devinfo.target_mask); |
434 | ahc->inited_target[target_id] = 1; |
435 | first = 1; |
436 | } else |
437 | first = 0; |
438 | |
439 | if (xm->xm_mode & (PERIPH_CAP_WIDE16 | PERIPH_CAP_DT)) |
440 | width = MSG_EXT_WDTR_BUS_16_BIT; |
441 | else |
442 | width = MSG_EXT_WDTR_BUS_8_BIT; |
443 | |
444 | ahc_validate_width(ahc, NULL, &width, ROLE_UNKNOWN); |
445 | if (width > tinfo->user.width) |
446 | width = tinfo->user.width; |
447 | ahc_set_width(ahc, &devinfo, width, AHC_TRANS_GOAL, FALSE); |
448 | |
449 | if (!(xm->xm_mode & (PERIPH_CAP_SYNC | PERIPH_CAP_DT))) { |
450 | period = 0; |
451 | offset = 0; |
452 | ppr_options = 0; |
453 | } |
454 | |
455 | if ((xm->xm_mode & PERIPH_CAP_DT) && |
456 | (ppr_options & MSG_EXT_PPR_DT_REQ)) |
457 | ppr_options |= MSG_EXT_PPR_DT_REQ; |
458 | else |
459 | ppr_options &= ~MSG_EXT_PPR_DT_REQ; |
460 | if ((tstate->discenable & devinfo.target_mask) == 0 || |
461 | (tstate->tagenable & devinfo.target_mask) == 0) |
462 | ppr_options &= ~MSG_EXT_PPR_IU_REQ; |
463 | |
464 | if ((xm->xm_mode & PERIPH_CAP_TQING) && |
465 | (ahc->user_tagenable & devinfo.target_mask)) |
466 | tstate->tagenable |= devinfo.target_mask; |
467 | else |
468 | tstate->tagenable &= ~devinfo.target_mask; |
469 | |
470 | syncrate = ahc_find_syncrate(ahc, &period, &ppr_options, |
471 | AHC_SYNCRATE_MAX); |
472 | ahc_validate_offset(ahc, NULL, syncrate, &offset, |
473 | width, ROLE_UNKNOWN); |
474 | |
475 | if (offset == 0) { |
476 | period = 0; |
477 | ppr_options = 0; |
478 | } |
479 | |
480 | if (ppr_options != 0 |
481 | && tinfo->user.transport_version >= 3) { |
482 | tinfo->goal.transport_version = |
483 | tinfo->user.transport_version; |
484 | tinfo->curr.transport_version = |
485 | tinfo->user.transport_version; |
486 | } |
487 | |
488 | ahc_set_syncrate(ahc, &devinfo, syncrate, period, offset, |
489 | ppr_options, AHC_TRANS_GOAL, FALSE); |
490 | |
491 | /* |
492 | * If this is the first request, and no negotiation is |
493 | * needed, just confirm the state to the scsipi layer, |
494 | * so that it can print a message. |
495 | */ |
496 | if (old_autoneg == tstate->auto_negotiate && first) { |
497 | xm->xm_mode = 0; |
498 | xm->xm_period = tinfo->curr.period; |
499 | xm->xm_offset = tinfo->curr.offset; |
500 | if (tinfo->curr.width == MSG_EXT_WDTR_BUS_16_BIT) |
501 | xm->xm_mode |= PERIPH_CAP_WIDE16; |
502 | if (tinfo->curr.period) |
503 | xm->xm_mode |= PERIPH_CAP_SYNC; |
504 | if (tstate->tagenable & devinfo.target_mask) |
505 | xm->xm_mode |= PERIPH_CAP_TQING; |
506 | if (tinfo->curr.ppr_options & MSG_EXT_PPR_DT_REQ) |
507 | xm->xm_mode |= PERIPH_CAP_DT; |
508 | scsipi_async_event(chan, ASYNC_EVENT_XFER_MODE, xm); |
509 | } |
510 | splx(s); |
511 | } |
512 | } |
513 | |
514 | return; |
515 | } |
516 | |
517 | static void |
518 | ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments) |
519 | { |
520 | struct scb *scb; |
521 | struct scsipi_xfer *xs; |
522 | struct ahc_softc *ahc; |
523 | struct ahc_initiator_tinfo *tinfo; |
524 | struct ahc_tmode_tstate *tstate; |
525 | |
526 | u_int mask; |
527 | u_long s; |
528 | |
529 | scb = (struct scb *)arg; |
530 | xs = scb->xs; |
531 | xs->error = 0; |
532 | xs->status = 0; |
533 | xs->xs_status = 0; |
534 | ahc = device_private( |
535 | xs->xs_periph->periph_channel->chan_adapter->adapt_dev); |
536 | |
537 | if (nsegments != 0) { |
538 | struct ahc_dma_seg *sg; |
539 | bus_dma_segment_t *end_seg; |
540 | int op; |
541 | |
542 | end_seg = dm_segs + nsegments; |
543 | |
544 | /* Copy the segments into our SG list */ |
545 | sg = scb->sg_list; |
546 | while (dm_segs < end_seg) { |
547 | uint32_t len; |
548 | |
549 | sg->addr = ahc_htole32(dm_segs->ds_addr); |
550 | len = dm_segs->ds_len |
551 | | ((dm_segs->ds_addr >> 8) & AHC_SG_HIGH_ADDR_MASK); |
552 | sg->len = ahc_htole32(len); |
553 | sg++; |
554 | dm_segs++; |
555 | } |
556 | |
557 | /* |
558 | * Note where to find the SG entries in bus space. |
559 | * We also set the full residual flag which the |
560 | * sequencer will clear as soon as a data transfer |
561 | * occurs. |
562 | */ |
563 | scb->hscb->sgptr = ahc_htole32(scb->sg_list_phys|SG_FULL_RESID); |
564 | |
565 | if (xs->xs_control & XS_CTL_DATA_IN) |
566 | op = BUS_DMASYNC_PREREAD; |
567 | else |
568 | op = BUS_DMASYNC_PREWRITE; |
569 | |
570 | bus_dmamap_sync(ahc->parent_dmat, scb->dmamap, 0, |
571 | scb->dmamap->dm_mapsize, op); |
572 | |
573 | sg--; |
574 | sg->len |= ahc_htole32(AHC_DMA_LAST_SEG); |
575 | |
576 | /* Copy the first SG into the "current" data pointer area */ |
577 | scb->hscb->dataptr = scb->sg_list->addr; |
578 | scb->hscb->datacnt = scb->sg_list->len; |
579 | } else { |
580 | scb->hscb->sgptr = ahc_htole32(SG_LIST_NULL); |
581 | scb->hscb->dataptr = 0; |
582 | scb->hscb->datacnt = 0; |
583 | } |
584 | |
585 | scb->sg_count = nsegments; |
586 | |
587 | ahc_lock(ahc, &s); |
588 | |
589 | /* |
590 | * Last time we need to check if this SCB needs to |
591 | * be aborted. |
592 | */ |
593 | if (xs->xs_status & XS_STS_DONE) { |
594 | if (nsegments != 0) |
595 | bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap); |
596 | ahc_free_scb(ahc, scb); |
597 | ahc_unlock(ahc, &s); |
598 | scsipi_done(xs); |
599 | return; |
600 | } |
601 | |
602 | tinfo = ahc_fetch_transinfo(ahc, ahc->channel, |
603 | SCSIID_OUR_ID(scb->hscb->scsiid), |
604 | SCSIID_TARGET(ahc, scb->hscb->scsiid), |
605 | &tstate); |
606 | |
607 | mask = SCB_GET_TARGET_MASK(ahc, scb); |
608 | scb->hscb->scsirate = tinfo->scsirate; |
609 | scb->hscb->scsioffset = tinfo->curr.offset; |
610 | |
611 | if ((tstate->ultraenb & mask) != 0) |
612 | scb->hscb->control |= ULTRAENB; |
613 | |
614 | if ((tstate->discenable & mask) != 0) |
615 | scb->hscb->control |= DISCENB; |
616 | |
617 | if (xs->xs_tag_type) |
618 | scb->hscb->control |= xs->xs_tag_type; |
619 | |
620 | #if 1 /* This looks like it makes sense at first, but it can loop */ |
621 | if ((xs->xs_control & XS_CTL_DISCOVERY) && (tinfo->goal.width == 0 |
622 | && tinfo->goal.offset == 0 |
623 | && tinfo->goal.ppr_options == 0)) { |
624 | scb->flags |= SCB_NEGOTIATE; |
625 | scb->hscb->control |= MK_MESSAGE; |
626 | } else |
627 | #endif |
628 | if ((tstate->auto_negotiate & mask) != 0) { |
629 | scb->flags |= SCB_AUTO_NEGOTIATE; |
630 | scb->hscb->control |= MK_MESSAGE; |
631 | } |
632 | |
633 | LIST_INSERT_HEAD(&ahc->pending_scbs, scb, pending_links); |
634 | |
635 | if (!(xs->xs_control & XS_CTL_POLL)) { |
636 | callout_reset(&scb->xs->xs_callout, xs->timeout > 1000000 ? |
637 | (xs->timeout / 1000) * hz : (xs->timeout * hz) / 1000, |
638 | ahc_timeout, scb); |
639 | } |
640 | |
641 | /* |
642 | * We only allow one untagged transaction |
643 | * per target in the initiator role unless |
644 | * we are storing a full busy target *lun* |
645 | * table in SCB space. |
646 | */ |
647 | if ((scb->hscb->control & (TARGET_SCB|TAG_ENB)) == 0 |
648 | && (ahc->flags & AHC_SCB_BTT) == 0) { |
649 | struct scb_tailq *untagged_q; |
650 | int target_offset; |
651 | |
652 | target_offset = SCB_GET_TARGET_OFFSET(ahc, scb); |
653 | untagged_q = &(ahc->untagged_queues[target_offset]); |
654 | TAILQ_INSERT_TAIL(untagged_q, scb, links.tqe); |
655 | scb->flags |= SCB_UNTAGGEDQ; |
656 | if (TAILQ_FIRST(untagged_q) != scb) { |
657 | ahc_unlock(ahc, &s); |
658 | return; |
659 | } |
660 | } |
661 | scb->flags |= SCB_ACTIVE; |
662 | |
663 | if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) { |
664 | /* Define a mapping from our tag to the SCB. */ |
665 | ahc->scb_data->scbindex[scb->hscb->tag] = scb; |
666 | ahc_pause(ahc); |
667 | if ((ahc->flags & AHC_PAGESCBS) == 0) |
668 | ahc_outb(ahc, SCBPTR, scb->hscb->tag); |
669 | ahc_outb(ahc, TARG_IMMEDIATE_SCB, scb->hscb->tag); |
670 | ahc_unpause(ahc); |
671 | } else { |
672 | ahc_queue_scb(ahc, scb); |
673 | } |
674 | |
675 | if (!(xs->xs_control & XS_CTL_POLL)) { |
676 | ahc_unlock(ahc, &s); |
677 | return; |
678 | } |
679 | |
680 | /* |
681 | * If we can't use interrupts, poll for completion |
682 | */ |
683 | |
684 | SC_DEBUG(xs->xs_periph, SCSIPI_DB3, ("cmd_poll\n" )); |
685 | do { |
686 | if (ahc_poll(ahc, xs->timeout)) { |
687 | if (!(xs->xs_control & XS_CTL_SILENT)) |
688 | printf("cmd fail\n" ); |
689 | ahc_timeout(scb); |
690 | break; |
691 | } |
692 | } while (!(xs->xs_status & XS_STS_DONE)); |
693 | ahc_unlock(ahc, &s); |
694 | |
695 | return; |
696 | } |
697 | |
698 | static int |
699 | ahc_poll(struct ahc_softc *ahc, int wait) |
700 | { |
701 | while (--wait) { |
702 | DELAY(1000); |
703 | if (ahc_inb(ahc, INTSTAT) & INT_PEND) |
704 | break; |
705 | } |
706 | |
707 | if (wait == 0) { |
708 | printf("%s: board is not responding\n" , ahc_name(ahc)); |
709 | return (EIO); |
710 | } |
711 | |
712 | ahc_intr(ahc); |
713 | return (0); |
714 | } |
715 | |
716 | static void |
717 | ahc_setup_data(struct ahc_softc *ahc, struct scsipi_xfer *xs, |
718 | struct scb *scb) |
719 | { |
720 | struct hardware_scb *hscb; |
721 | |
722 | hscb = scb->hscb; |
723 | xs->resid = xs->status = 0; |
724 | |
725 | hscb->cdb_len = xs->cmdlen; |
726 | if (hscb->cdb_len > sizeof(hscb->cdb32)) { |
727 | u_long s; |
728 | |
729 | ahc_set_transaction_status(scb, CAM_REQ_INVALID); |
730 | ahc_lock(ahc, &s); |
731 | ahc_free_scb(ahc, scb); |
732 | ahc_unlock(ahc, &s); |
733 | scsipi_done(xs); |
734 | return; |
735 | } |
736 | |
737 | if (hscb->cdb_len > 12) { |
738 | memcpy(hscb->cdb32, xs->cmd, hscb->cdb_len); |
739 | scb->flags |= SCB_CDB32_PTR; |
740 | } else { |
741 | memcpy(hscb->shared_data.cdb, xs->cmd, hscb->cdb_len); |
742 | } |
743 | |
744 | /* Only use S/G if there is a transfer */ |
745 | if (xs->datalen) { |
746 | int error; |
747 | |
748 | error = bus_dmamap_load(ahc->parent_dmat, |
749 | scb->dmamap, xs->data, |
750 | xs->datalen, NULL, |
751 | ((xs->xs_control & XS_CTL_NOSLEEP) ? |
752 | BUS_DMA_NOWAIT : BUS_DMA_WAITOK) | |
753 | BUS_DMA_STREAMING | |
754 | ((xs->xs_control & XS_CTL_DATA_IN) ? |
755 | BUS_DMA_READ : BUS_DMA_WRITE)); |
756 | if (error) { |
757 | #ifdef AHC_DEBUG |
758 | printf("%s: in ahc_setup_data(): bus_dmamap_load() " |
759 | "= %d\n" , |
760 | ahc_name(ahc), error); |
761 | #endif |
762 | xs->error = XS_RESOURCE_SHORTAGE; |
763 | scsipi_done(xs); |
764 | return; |
765 | } |
766 | ahc_execute_scb(scb, |
767 | scb->dmamap->dm_segs, |
768 | scb->dmamap->dm_nsegs); |
769 | } else { |
770 | ahc_execute_scb(scb, NULL, 0); |
771 | } |
772 | } |
773 | |
774 | static void |
775 | ahc_set_recoveryscb(struct ahc_softc *ahc, struct scb *scb) { |
776 | |
777 | if ((scb->flags & SCB_RECOVERY_SCB) == 0) { |
778 | struct scb *list_scb; |
779 | |
780 | scb->flags |= SCB_RECOVERY_SCB; |
781 | |
782 | /* |
783 | * Take all queued, but not sent SCBs out of the equation. |
784 | * Also ensure that no new CCBs are queued to us while we |
785 | * try to fix this problem. |
786 | */ |
787 | scsipi_channel_freeze(&ahc->sc_channel, 1); |
788 | if (ahc->features & AHC_TWIN) |
789 | scsipi_channel_freeze(&ahc->sc_channel_b, 1); |
790 | |
791 | /* |
792 | * Go through all of our pending SCBs and remove |
793 | * any scheduled timeouts for them. We will reschedule |
794 | * them after we've successfully fixed this problem. |
795 | */ |
796 | LIST_FOREACH(list_scb, &ahc->pending_scbs, pending_links) { |
797 | callout_stop(&list_scb->xs->xs_callout); |
798 | } |
799 | } |
800 | } |
801 | |
802 | void |
803 | ahc_timeout(void *arg) |
804 | { |
805 | struct scb *scb; |
806 | struct ahc_softc *ahc; |
807 | u_long s; |
808 | int found; |
809 | u_int last_phase; |
810 | int target; |
811 | int lun; |
812 | int i; |
813 | char channel; |
814 | |
815 | scb = arg; |
816 | ahc = scb->ahc_softc; |
817 | |
818 | ahc_lock(ahc, &s); |
819 | |
820 | ahc_pause_and_flushwork(ahc); |
821 | |
822 | if ((scb->flags & SCB_ACTIVE) == 0) { |
823 | /* Previous timeout took care of me already */ |
824 | printf("%s: Timedout SCB already complete. " |
825 | "Interrupts may not be functioning.\n" , ahc_name(ahc)); |
826 | ahc_unpause(ahc); |
827 | ahc_unlock(ahc, &s); |
828 | return; |
829 | } |
830 | |
831 | target = SCB_GET_TARGET(ahc, scb); |
832 | channel = SCB_GET_CHANNEL(ahc, scb); |
833 | lun = SCB_GET_LUN(scb); |
834 | |
835 | ahc_print_path(ahc, scb); |
836 | printf("SCB 0x%x - timed out\n" , scb->hscb->tag); |
837 | ahc_dump_card_state(ahc); |
838 | last_phase = ahc_inb(ahc, LASTPHASE); |
839 | if (scb->sg_count > 0) { |
840 | for (i = 0; i < scb->sg_count; i++) { |
841 | printf("sg[%d] - Addr 0x%x : Length %d\n" , |
842 | i, |
843 | scb->sg_list[i].addr, |
844 | scb->sg_list[i].len & AHC_SG_LEN_MASK); |
845 | } |
846 | } |
847 | if (scb->flags & (SCB_DEVICE_RESET|SCB_ABORT)) { |
848 | /* |
849 | * Been down this road before. |
850 | * Do a full bus reset. |
851 | */ |
852 | bus_reset: |
853 | ahc_set_transaction_status(scb, CAM_CMD_TIMEOUT); |
854 | found = ahc_reset_channel(ahc, channel, /*Initiate Reset*/TRUE); |
855 | printf("%s: Issued Channel %c Bus Reset. " |
856 | "%d SCBs aborted\n" , ahc_name(ahc), channel, found); |
857 | } else { |
858 | /* |
859 | * If we are a target, transition to bus free and report |
860 | * the timeout. |
861 | * |
862 | * The target/initiator that is holding up the bus may not |
863 | * be the same as the one that triggered this timeout |
864 | * (different commands have different timeout lengths). |
865 | * If the bus is idle and we are acting as the initiator |
866 | * for this request, queue a BDR message to the timed out |
867 | * target. Otherwise, if the timed out transaction is |
868 | * active: |
869 | * Initiator transaction: |
870 | * Stuff the message buffer with a BDR message and assert |
871 | * ATN in the hopes that the target will let go of the bus |
872 | * and go to the mesgout phase. If this fails, we'll |
873 | * get another timeout 2 seconds later which will attempt |
874 | * a bus reset. |
875 | * |
876 | * Target transaction: |
877 | * Transition to BUS FREE and report the error. |
878 | * It's good to be the target! |
879 | */ |
880 | u_int active_scb_index; |
881 | u_int saved_scbptr; |
882 | |
883 | saved_scbptr = ahc_inb(ahc, SCBPTR); |
884 | active_scb_index = ahc_inb(ahc, SCB_TAG); |
885 | |
886 | if ((ahc_inb(ahc, SEQ_FLAGS) & NOT_IDENTIFIED) == 0 |
887 | && (active_scb_index < ahc->scb_data->numscbs)) { |
888 | struct scb *active_scb; |
889 | |
890 | /* |
891 | * If the active SCB is not us, assume that |
892 | * the active SCB has a longer timeout than |
893 | * the timedout SCB, and wait for the active |
894 | * SCB to timeout. |
895 | */ |
896 | active_scb = ahc_lookup_scb(ahc, active_scb_index); |
897 | if (active_scb != scb) { |
898 | uint64_t newtimeout; |
899 | |
900 | ahc_print_path(ahc, scb); |
901 | printf("Other SCB Timeout%s" , |
902 | (scb->flags & SCB_OTHERTCL_TIMEOUT) != 0 |
903 | ? " again\n" : "\n" ); |
904 | scb->flags |= SCB_OTHERTCL_TIMEOUT; |
905 | newtimeout = MAX(active_scb->xs->timeout, |
906 | scb->xs->timeout); |
907 | callout_reset(&scb->xs->xs_callout, |
908 | newtimeout > 1000000 ? |
909 | (newtimeout / 1000) * hz : |
910 | (newtimeout * hz) / 1000, |
911 | ahc_timeout, scb); |
912 | ahc_unpause(ahc); |
913 | ahc_unlock(ahc, &s); |
914 | return; |
915 | } |
916 | |
917 | /* It's us */ |
918 | if ((scb->flags & SCB_TARGET_SCB) != 0) { |
919 | |
920 | /* |
921 | * Send back any queued up transactions |
922 | * and properly record the error condition. |
923 | */ |
924 | ahc_abort_scbs(ahc, SCB_GET_TARGET(ahc, scb), |
925 | SCB_GET_CHANNEL(ahc, scb), |
926 | SCB_GET_LUN(scb), |
927 | scb->hscb->tag, |
928 | ROLE_TARGET, |
929 | CAM_CMD_TIMEOUT); |
930 | |
931 | /* Will clear us from the bus */ |
932 | ahc_restart(ahc); |
933 | ahc_unlock(ahc, &s); |
934 | return; |
935 | } |
936 | |
937 | ahc_set_recoveryscb(ahc, active_scb); |
938 | ahc_outb(ahc, MSG_OUT, HOST_MSG); |
939 | ahc_outb(ahc, SCSISIGO, last_phase|ATNO); |
940 | ahc_print_path(ahc, active_scb); |
941 | printf("BDR message in message buffer\n" ); |
942 | active_scb->flags |= SCB_DEVICE_RESET; |
943 | callout_reset(&active_scb->xs->xs_callout, |
944 | 2 * hz, ahc_timeout, active_scb); |
945 | ahc_unpause(ahc); |
946 | } else { |
947 | int disconnected; |
948 | |
949 | /* XXX Shouldn't panic. Just punt instead? */ |
950 | if ((scb->flags & SCB_TARGET_SCB) != 0) |
951 | panic("Timed-out target SCB but bus idle" ); |
952 | |
953 | if (last_phase != P_BUSFREE |
954 | && (ahc_inb(ahc, SSTAT0) & TARGET) != 0) { |
955 | /* XXX What happened to the SCB? */ |
956 | /* Hung target selection. Goto busfree */ |
957 | printf("%s: Hung target selection\n" , |
958 | ahc_name(ahc)); |
959 | ahc_restart(ahc); |
960 | ahc_unlock(ahc, &s); |
961 | return; |
962 | } |
963 | |
964 | if (ahc_search_qinfifo(ahc, target, channel, lun, |
965 | scb->hscb->tag, ROLE_INITIATOR, |
966 | /*status*/0, SEARCH_COUNT) > 0) { |
967 | disconnected = FALSE; |
968 | } else { |
969 | disconnected = TRUE; |
970 | } |
971 | |
972 | if (disconnected) { |
973 | |
974 | ahc_set_recoveryscb(ahc, scb); |
975 | /* |
976 | * Actually re-queue this SCB in an attempt |
977 | * to select the device before it reconnects. |
978 | * In either case (selection or reselection), |
979 | * we will now issue a target reset to the |
980 | * timed-out device. |
981 | * |
982 | * Set the MK_MESSAGE control bit indicating |
983 | * that we desire to send a message. We |
984 | * also set the disconnected flag since |
985 | * in the paging case there is no guarantee |
986 | * that our SCB control byte matches the |
987 | * version on the card. We don't want the |
988 | * sequencer to abort the command thinking |
989 | * an unsolicited reselection occurred. |
990 | */ |
991 | scb->hscb->control |= MK_MESSAGE|DISCONNECTED; |
992 | scb->flags |= SCB_DEVICE_RESET; |
993 | |
994 | /* |
995 | * Remove any cached copy of this SCB in the |
996 | * disconnected list in preparation for the |
997 | * queuing of our abort SCB. We use the |
998 | * same element in the SCB, SCB_NEXT, for |
999 | * both the qinfifo and the disconnected list. |
1000 | */ |
1001 | ahc_search_disc_list(ahc, target, channel, |
1002 | lun, scb->hscb->tag, |
1003 | /*stop_on_first*/TRUE, |
1004 | /*remove*/TRUE, |
1005 | /*save_state*/FALSE); |
1006 | |
1007 | /* |
1008 | * In the non-paging case, the sequencer will |
1009 | * never re-reference the in-core SCB. |
1010 | * To make sure we are notified during |
1011 | * reslection, set the MK_MESSAGE flag in |
1012 | * the card's copy of the SCB. |
1013 | */ |
1014 | if ((ahc->flags & AHC_PAGESCBS) == 0) { |
1015 | ahc_outb(ahc, SCBPTR, scb->hscb->tag); |
1016 | ahc_outb(ahc, SCB_CONTROL, |
1017 | ahc_inb(ahc, SCB_CONTROL) |
1018 | | MK_MESSAGE); |
1019 | } |
1020 | |
1021 | /* |
1022 | * Clear out any entries in the QINFIFO first |
1023 | * so we are the next SCB for this target |
1024 | * to run. |
1025 | */ |
1026 | ahc_search_qinfifo(ahc, |
1027 | SCB_GET_TARGET(ahc, scb), |
1028 | channel, SCB_GET_LUN(scb), |
1029 | SCB_LIST_NULL, |
1030 | ROLE_INITIATOR, |
1031 | CAM_REQUEUE_REQ, |
1032 | SEARCH_COMPLETE); |
1033 | ahc_print_path(ahc, scb); |
1034 | printf("Queuing a BDR SCB\n" ); |
1035 | ahc_qinfifo_requeue_tail(ahc, scb); |
1036 | ahc_outb(ahc, SCBPTR, saved_scbptr); |
1037 | callout_reset(&scb->xs->xs_callout, 2 * hz, |
1038 | ahc_timeout, scb); |
1039 | ahc_unpause(ahc); |
1040 | } else { |
1041 | /* Go "immediatly" to the bus reset */ |
1042 | /* This shouldn't happen */ |
1043 | ahc_set_recoveryscb(ahc, scb); |
1044 | ahc_print_path(ahc, scb); |
1045 | printf("SCB %d: Immediate reset. " |
1046 | "Flags = 0x%x\n" , scb->hscb->tag, |
1047 | scb->flags); |
1048 | goto bus_reset; |
1049 | } |
1050 | } |
1051 | } |
1052 | ahc_unlock(ahc, &s); |
1053 | } |
1054 | |
1055 | void |
1056 | ahc_platform_set_tags(struct ahc_softc *ahc, |
1057 | struct ahc_devinfo *devinfo, int enable) |
1058 | { |
1059 | struct ahc_tmode_tstate *tstate; |
1060 | |
1061 | ahc_fetch_transinfo(ahc, devinfo->channel, devinfo->our_scsiid, |
1062 | devinfo->target, &tstate); |
1063 | |
1064 | if (enable) |
1065 | tstate->tagenable |= devinfo->target_mask; |
1066 | else |
1067 | tstate->tagenable &= ~devinfo->target_mask; |
1068 | } |
1069 | |
1070 | int |
1071 | ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg) |
1072 | { |
1073 | if (sizeof(struct ahc_platform_data) == 0) |
1074 | return 0; |
1075 | ahc->platform_data = malloc(sizeof(struct ahc_platform_data), M_DEVBUF, |
1076 | M_NOWAIT); |
1077 | if (ahc->platform_data == NULL) |
1078 | return (ENOMEM); |
1079 | return (0); |
1080 | } |
1081 | |
1082 | void |
1083 | ahc_platform_free(struct ahc_softc *ahc) |
1084 | { |
1085 | if (sizeof(struct ahc_platform_data) == 0) |
1086 | return; |
1087 | free(ahc->platform_data, M_DEVBUF); |
1088 | } |
1089 | |
1090 | int |
1091 | ahc_softc_comp(struct ahc_softc *lahc, struct ahc_softc *rahc) |
1092 | { |
1093 | return (0); |
1094 | } |
1095 | |
1096 | int |
1097 | ahc_detach(struct ahc_softc *ahc, int flags) |
1098 | { |
1099 | int rv = 0; |
1100 | |
1101 | ahc_intr_enable(ahc, FALSE); |
1102 | if (ahc->sc_child != NULL) |
1103 | rv = config_detach(ahc->sc_child, flags); |
1104 | if (rv == 0 && ahc->sc_child_b != NULL) |
1105 | rv = config_detach(ahc->sc_child_b, flags); |
1106 | |
1107 | pmf_device_deregister(ahc->sc_dev); |
1108 | ahc_free(ahc); |
1109 | |
1110 | return (rv); |
1111 | } |
1112 | |
1113 | |
1114 | void |
1115 | ahc_send_async(struct ahc_softc *ahc, char channel, u_int target, u_int lun, |
1116 | ac_code code, void *opt_arg) |
1117 | { |
1118 | struct ahc_tmode_tstate *tstate; |
1119 | struct ahc_initiator_tinfo *tinfo; |
1120 | struct ahc_devinfo devinfo; |
1121 | struct scsipi_channel *chan; |
1122 | struct scsipi_xfer_mode xm; |
1123 | |
1124 | chan = channel == 'B' ? &ahc->sc_channel_b : &ahc->sc_channel; |
1125 | switch (code) { |
1126 | case AC_TRANSFER_NEG: |
1127 | tinfo = ahc_fetch_transinfo(ahc, channel, ahc->our_id, target, |
1128 | &tstate); |
1129 | ahc_compile_devinfo(&devinfo, ahc->our_id, target, lun, |
1130 | channel, ROLE_UNKNOWN); |
1131 | /* |
1132 | * Don't bother if negotiating. XXX? |
1133 | */ |
1134 | if (tinfo->curr.period != tinfo->goal.period |
1135 | || tinfo->curr.width != tinfo->goal.width |
1136 | || tinfo->curr.offset != tinfo->goal.offset |
1137 | || tinfo->curr.ppr_options != tinfo->goal.ppr_options) |
1138 | break; |
1139 | xm.xm_target = target; |
1140 | xm.xm_mode = 0; |
1141 | xm.xm_period = tinfo->curr.period; |
1142 | xm.xm_offset = tinfo->curr.offset; |
1143 | if (tinfo->curr.width == MSG_EXT_WDTR_BUS_16_BIT) |
1144 | xm.xm_mode |= PERIPH_CAP_WIDE16; |
1145 | if (tinfo->curr.period) |
1146 | xm.xm_mode |= PERIPH_CAP_SYNC; |
1147 | if (tstate->tagenable & devinfo.target_mask) |
1148 | xm.xm_mode |= PERIPH_CAP_TQING; |
1149 | if (tinfo->curr.ppr_options & MSG_EXT_PPR_DT_REQ) |
1150 | xm.xm_mode |= PERIPH_CAP_DT; |
1151 | scsipi_async_event(chan, ASYNC_EVENT_XFER_MODE, &xm); |
1152 | break; |
1153 | case AC_BUS_RESET: |
1154 | scsipi_async_event(chan, ASYNC_EVENT_RESET, NULL); |
1155 | case AC_SENT_BDR: |
1156 | default: |
1157 | break; |
1158 | } |
1159 | } |
1160 | |