1 /*-
2 * Bus independent FreeBSD shim for the aic7xxx based Adaptec SCSI controllers
3 *
4 * Copyright (c) 1994-2001 Justin T. Gibbs.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions, and the following disclaimer,
12 * without modification.
13 * 2. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * Alternatively, this software may be distributed under the terms of the
17 * GNU Public License ("GPL").
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * $Id: //depot/aic7xxx/freebsd/dev/aic7xxx/aic7xxx_osm.c#20 $
32 */
33
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD: releng/8.1/sys/dev/aic7xxx/aic7xxx_osm.c 170872 2007-06-17 05:55:54Z scottl $");
36
37 #include <dev/aic7xxx/aic7xxx_osm.h>
38 #include <dev/aic7xxx/aic7xxx_inline.h>
39
40 #include <sys/kthread.h>
41
42 #ifndef AHC_TMODE_ENABLE
43 #define AHC_TMODE_ENABLE 0
44 #endif
45
46 #include <dev/aic7xxx/aic_osm_lib.c>
47
48 #define ccb_scb_ptr spriv_ptr0
49
50 devclass_t ahc_devclass;
51
52 #if 0
53 static void ahc_dump_targcmd(struct target_cmd *cmd);
54 #endif
55 static int ahc_modevent(module_t mod, int type, void *data);
56 static void ahc_action(struct cam_sim *sim, union ccb *ccb);
57 static void ahc_get_tran_settings(struct ahc_softc *ahc,
58 int our_id, char channel,
59 struct ccb_trans_settings *cts);
60 static void ahc_async(void *callback_arg, uint32_t code,
61 struct cam_path *path, void *arg);
62 static void ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs,
63 int nsegments, int error);
64 static void ahc_poll(struct cam_sim *sim);
65 static void ahc_setup_data(struct ahc_softc *ahc, struct cam_sim *sim,
66 struct ccb_scsiio *csio, struct scb *scb);
67 static void ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim,
68 union ccb *ccb);
69 static int ahc_create_path(struct ahc_softc *ahc,
70 char channel, u_int target, u_int lun,
71 struct cam_path **path);
72
73
74 static int
75 ahc_create_path(struct ahc_softc *ahc, char channel, u_int target,
76 u_int lun, struct cam_path **path)
77 {
78 path_id_t path_id;
79
80 if (channel == 'B')
81 path_id = cam_sim_path(ahc->platform_data->sim_b);
82 else
83 path_id = cam_sim_path(ahc->platform_data->sim);
84
85 return (xpt_create_path(path, /*periph*/NULL,
86 path_id, target, lun));
87 }
88
89 int
90 ahc_map_int(struct ahc_softc *ahc)
91 {
92 int error;
93 int zero;
94 int shareable;
95
96 zero = 0;
97 shareable = (ahc->flags & AHC_EDGE_INTERRUPT) ? 0: RF_SHAREABLE;
98 ahc->platform_data->irq =
99 bus_alloc_resource_any(ahc->dev_softc, SYS_RES_IRQ, &zero,
100 RF_ACTIVE | shareable);
101 if (ahc->platform_data->irq == NULL) {
102 device_printf(ahc->dev_softc,
103 "bus_alloc_resource() failed to allocate IRQ\n");
104 return (ENOMEM);
105 }
106 ahc->platform_data->irq_res_type = SYS_RES_IRQ;
107
108 /* Hook up our interrupt handler */
109 error = bus_setup_intr(ahc->dev_softc, ahc->platform_data->irq,
110 INTR_TYPE_CAM|INTR_MPSAFE, NULL,
111 ahc_platform_intr, ahc, &ahc->platform_data->ih);
112
113 if (error != 0)
114 device_printf(ahc->dev_softc, "bus_setup_intr() failed: %d\n",
115 error);
116 return (error);
117 }
118
119 int
120 aic7770_map_registers(struct ahc_softc *ahc, u_int unused_ioport_arg)
121 {
122 struct resource *regs;
123 int rid;
124
125 rid = 0;
126 regs = bus_alloc_resource_any(ahc->dev_softc, SYS_RES_IOPORT, &rid,
127 RF_ACTIVE);
128 if (regs == NULL) {
129 device_printf(ahc->dev_softc, "Unable to map I/O space?!\n");
130 return ENOMEM;
131 }
132 ahc->platform_data->regs_res_type = SYS_RES_IOPORT;
133 ahc->platform_data->regs_res_id = rid,
134 ahc->platform_data->regs = regs;
135 ahc->tag = rman_get_bustag(regs);
136 ahc->bsh = rman_get_bushandle(regs);
137 return (0);
138 }
139
140 /*
141 * Attach all the sub-devices we can find
142 */
143 int
144 ahc_attach(struct ahc_softc *ahc)
145 {
146 char ahc_info[256];
147 struct ccb_setasync csa;
148 struct cam_devq *devq;
149 int bus_id;
150 int bus_id2;
151 struct cam_sim *sim;
152 struct cam_sim *sim2;
153 struct cam_path *path;
154 struct cam_path *path2;
155 int count;
156
157 count = 0;
158 sim = NULL;
159 sim2 = NULL;
160 path = NULL;
161 path2 = NULL;
162
163
164 /*
165 * Create a thread to perform all recovery.
166 */
167 if (ahc_spawn_recovery_thread(ahc) != 0)
168 goto fail;
169
170 ahc_controller_info(ahc, ahc_info);
171 printf("%s\n", ahc_info);
172 ahc_lock(ahc);
173
174 /*
175 * Attach secondary channel first if the user has
176 * declared it the primary channel.
177 */
178 if ((ahc->features & AHC_TWIN) != 0
179 && (ahc->flags & AHC_PRIMARY_CHANNEL) != 0) {
180 bus_id = 1;
181 bus_id2 = 0;
182 } else {
183 bus_id = 0;
184 bus_id2 = 1;
185 }
186
187 /*
188 * Create the device queue for our SIM(s).
189 */
190 devq = cam_simq_alloc(AHC_MAX_QUEUE);
191 if (devq == NULL)
192 goto fail;
193
194 /*
195 * Construct our first channel SIM entry
196 */
197 sim = cam_sim_alloc(ahc_action, ahc_poll, "ahc", ahc,
198 device_get_unit(ahc->dev_softc),
199 &ahc->platform_data->mtx, 1, AHC_MAX_QUEUE, devq);
200 if (sim == NULL) {
201 cam_simq_free(devq);
202 goto fail;
203 }
204
205 if (xpt_bus_register(sim, ahc->dev_softc, bus_id) != CAM_SUCCESS) {
206 cam_sim_free(sim, /*free_devq*/TRUE);
207 sim = NULL;
208 goto fail;
209 }
210
211 if (xpt_create_path(&path, /*periph*/NULL,
212 cam_sim_path(sim), CAM_TARGET_WILDCARD,
213 CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
214 xpt_bus_deregister(cam_sim_path(sim));
215 cam_sim_free(sim, /*free_devq*/TRUE);
216 sim = NULL;
217 goto fail;
218 }
219
220 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
221 csa.ccb_h.func_code = XPT_SASYNC_CB;
222 csa.event_enable = AC_LOST_DEVICE;
223 csa.callback = ahc_async;
224 csa.callback_arg = sim;
225 xpt_action((union ccb *)&csa);
226 count++;
227
228 if (ahc->features & AHC_TWIN) {
229 sim2 = cam_sim_alloc(ahc_action, ahc_poll, "ahc",
230 ahc, device_get_unit(ahc->dev_softc),
231 &ahc->platform_data->mtx, 1,
232 AHC_MAX_QUEUE, devq);
233
234 if (sim2 == NULL) {
235 printf("ahc_attach: Unable to attach second "
236 "bus due to resource shortage");
237 goto fail;
238 }
239
240 if (xpt_bus_register(sim2, ahc->dev_softc, bus_id2) !=
241 CAM_SUCCESS) {
242 printf("ahc_attach: Unable to attach second "
243 "bus due to resource shortage");
244 /*
245 * We do not want to destroy the device queue
246 * because the first bus is using it.
247 */
248 cam_sim_free(sim2, /*free_devq*/FALSE);
249 goto fail;
250 }
251
252 if (xpt_create_path(&path2, /*periph*/NULL,
253 cam_sim_path(sim2),
254 CAM_TARGET_WILDCARD,
255 CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
256 xpt_bus_deregister(cam_sim_path(sim2));
257 cam_sim_free(sim2, /*free_devq*/FALSE);
258 sim2 = NULL;
259 goto fail;
260 }
261 xpt_setup_ccb(&csa.ccb_h, path2, /*priority*/5);
262 csa.ccb_h.func_code = XPT_SASYNC_CB;
263 csa.event_enable = AC_LOST_DEVICE;
264 csa.callback = ahc_async;
265 csa.callback_arg = sim2;
266 xpt_action((union ccb *)&csa);
267 count++;
268 }
269
270 fail:
271 if ((ahc->features & AHC_TWIN) != 0
272 && (ahc->flags & AHC_PRIMARY_CHANNEL) != 0) {
273 ahc->platform_data->sim_b = sim;
274 ahc->platform_data->path_b = path;
275 ahc->platform_data->sim = sim2;
276 ahc->platform_data->path = path2;
277 } else {
278 ahc->platform_data->sim = sim;
279 ahc->platform_data->path = path;
280 ahc->platform_data->sim_b = sim2;
281 ahc->platform_data->path_b = path2;
282 }
283 ahc_unlock(ahc);
284
285 if (count != 0) {
286 /* We have to wait until after any system dumps... */
287 ahc->platform_data->eh =
288 EVENTHANDLER_REGISTER(shutdown_final, ahc_shutdown,
289 ahc, SHUTDOWN_PRI_DEFAULT);
290 ahc_intr_enable(ahc, TRUE);
291 }
292
293 return (count);
294 }
295
296 /*
297 * Catch an interrupt from the adapter
298 */
299 void
300 ahc_platform_intr(void *arg)
301 {
302 struct ahc_softc *ahc;
303
304 ahc = (struct ahc_softc *)arg;
305 ahc_lock(ahc);
306 ahc_intr(ahc);
307 ahc_unlock(ahc);
308 }
309
310 /*
311 * We have an scb which has been processed by the
312 * adaptor, now we look to see how the operation
313 * went.
314 */
315 void
316 ahc_done(struct ahc_softc *ahc, struct scb *scb)
317 {
318 union ccb *ccb;
319
320 CAM_DEBUG(scb->io_ctx->ccb_h.path, CAM_DEBUG_TRACE,
321 ("ahc_done - scb %d\n", scb->hscb->tag));
322
323 ccb = scb->io_ctx;
324 LIST_REMOVE(scb, pending_links);
325 if ((scb->flags & SCB_TIMEDOUT) != 0)
326 LIST_REMOVE(scb, timedout_links);
327 if ((scb->flags & SCB_UNTAGGEDQ) != 0) {
328 struct scb_tailq *untagged_q;
329 int target_offset;
330
331 target_offset = SCB_GET_TARGET_OFFSET(ahc, scb);
332 untagged_q = &ahc->untagged_queues[target_offset];
333 TAILQ_REMOVE(untagged_q, scb, links.tqe);
334 scb->flags &= ~SCB_UNTAGGEDQ;
335 ahc_run_untagged_queue(ahc, untagged_q);
336 }
337
338 callout_stop(&scb->io_timer);
339
340 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
341 bus_dmasync_op_t op;
342
343 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
344 op = BUS_DMASYNC_POSTREAD;
345 else
346 op = BUS_DMASYNC_POSTWRITE;
347 bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op);
348 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap);
349 }
350
351 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
352 struct cam_path *ccb_path;
353
354 /*
355 * If we have finally disconnected, clean up our
356 * pending device state.
357 * XXX - There may be error states that cause where
358 * we will remain connected.
359 */
360 ccb_path = ccb->ccb_h.path;
361 if (ahc->pending_device != NULL
362 && xpt_path_comp(ahc->pending_device->path, ccb_path) == 0) {
363
364 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
365 ahc->pending_device = NULL;
366 } else {
367 if (bootverbose) {
368 xpt_print_path(ccb->ccb_h.path);
369 printf("Still connected\n");
370 }
371 aic_freeze_ccb(ccb);
372 }
373 }
374
375 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG)
376 ccb->ccb_h.status |= CAM_REQ_CMP;
377 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
378 ahc_free_scb(ahc, scb);
379 xpt_done(ccb);
380 return;
381 }
382
383 /*
384 * If the recovery SCB completes, we have to be
385 * out of our timeout.
386 */
387 if ((scb->flags & SCB_RECOVERY_SCB) != 0) {
388 struct scb *list_scb;
389
390 ahc->scb_data->recovery_scbs--;
391
392 if (aic_get_transaction_status(scb) == CAM_BDR_SENT
393 || aic_get_transaction_status(scb) == CAM_REQ_ABORTED)
394 aic_set_transaction_status(scb, CAM_CMD_TIMEOUT);
395
396 if (ahc->scb_data->recovery_scbs == 0) {
397 /*
398 * All recovery actions have completed successfully,
399 * so reinstate the timeouts for all other pending
400 * commands.
401 */
402 LIST_FOREACH(list_scb, &ahc->pending_scbs,
403 pending_links) {
404
405 aic_scb_timer_reset(list_scb,
406 aic_get_timeout(scb));
407 }
408
409 ahc_print_path(ahc, scb);
410 printf("no longer in timeout, status = %x\n",
411 ccb->ccb_h.status);
412 }
413 }
414
415 /* Don't clobber any existing error state */
416 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) {
417 ccb->ccb_h.status |= CAM_REQ_CMP;
418 } else if ((scb->flags & SCB_SENSE) != 0) {
419 /*
420 * We performed autosense retrieval.
421 *
422 * Zero any sense not transferred by the
423 * device. The SCSI spec mandates that any
424 * untransfered data should be assumed to be
425 * zero. Complete the 'bounce' of sense information
426 * through buffers accessible via bus-space by
427 * copying it into the clients csio.
428 */
429 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data));
430 memcpy(&ccb->csio.sense_data,
431 ahc_get_sense_buf(ahc, scb),
432 (aic_le32toh(scb->sg_list->len) & AHC_SG_LEN_MASK)
433 - ccb->csio.sense_resid);
434 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID;
435 }
436 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
437 ahc_free_scb(ahc, scb);
438 xpt_done(ccb);
439 }
440
441 static void
442 ahc_action(struct cam_sim *sim, union ccb *ccb)
443 {
444 struct ahc_softc *ahc;
445 struct ahc_tmode_lstate *lstate;
446 u_int target_id;
447 u_int our_id;
448
449 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahc_action\n"));
450
451 ahc = (struct ahc_softc *)cam_sim_softc(sim);
452
453 target_id = ccb->ccb_h.target_id;
454 our_id = SIM_SCSI_ID(ahc, sim);
455
456 switch (ccb->ccb_h.func_code) {
457 /* Common cases first */
458 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */
459 case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/
460 {
461 struct ahc_tmode_tstate *tstate;
462 cam_status status;
463
464 status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate,
465 &lstate, TRUE);
466
467 if (status != CAM_REQ_CMP) {
468 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
469 /* Response from the black hole device */
470 tstate = NULL;
471 lstate = ahc->black_hole;
472 } else {
473 ccb->ccb_h.status = status;
474 xpt_done(ccb);
475 break;
476 }
477 }
478 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
479
480 SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h,
481 sim_links.sle);
482 ccb->ccb_h.status = CAM_REQ_INPROG;
483 if ((ahc->flags & AHC_TQINFIFO_BLOCKED) != 0)
484 ahc_run_tqinfifo(ahc, /*paused*/FALSE);
485 break;
486 }
487
488 /*
489 * The target_id represents the target we attempt to
490 * select. In target mode, this is the initiator of
491 * the original command.
492 */
493 our_id = target_id;
494 target_id = ccb->csio.init_id;
495 /* FALLTHROUGH */
496 }
497 case XPT_SCSI_IO: /* Execute the requested I/O operation */
498 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */
499 {
500 struct scb *scb;
501 struct hardware_scb *hscb;
502
503 if ((ahc->flags & AHC_INITIATORROLE) == 0
504 && (ccb->ccb_h.func_code == XPT_SCSI_IO
505 || ccb->ccb_h.func_code == XPT_RESET_DEV)) {
506 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
507 xpt_done(ccb);
508 return;
509 }
510
511 /*
512 * get an scb to use.
513 */
514 if ((scb = ahc_get_scb(ahc)) == NULL) {
515
516 xpt_freeze_simq(sim, /*count*/1);
517 ahc->flags |= AHC_RESOURCE_SHORTAGE;
518 ccb->ccb_h.status = CAM_REQUEUE_REQ;
519 xpt_done(ccb);
520 return;
521 }
522
523 hscb = scb->hscb;
524
525 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE,
526 ("start scb(%p)\n", scb));
527 scb->io_ctx = ccb;
528 /*
529 * So we can find the SCB when an abort is requested
530 */
531 ccb->ccb_h.ccb_scb_ptr = scb;
532
533 /*
534 * Put all the arguments for the xfer in the scb
535 */
536 hscb->control = 0;
537 hscb->scsiid = BUILD_SCSIID(ahc, sim, target_id, our_id);
538 hscb->lun = ccb->ccb_h.target_lun;
539 if (ccb->ccb_h.func_code == XPT_RESET_DEV) {
540 hscb->cdb_len = 0;
541 scb->flags |= SCB_DEVICE_RESET;
542 hscb->control |= MK_MESSAGE;
543 ahc_execute_scb(scb, NULL, 0, 0);
544 } else {
545 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
546 struct target_data *tdata;
547
548 tdata = &hscb->shared_data.tdata;
549 if (ahc->pending_device == lstate)
550 scb->flags |= SCB_TARGET_IMMEDIATE;
551 hscb->control |= TARGET_SCB;
552 scb->flags |= SCB_TARGET_SCB;
553 tdata->target_phases = 0;
554 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
555 tdata->target_phases |= SPHASE_PENDING;
556 tdata->scsi_status =
557 ccb->csio.scsi_status;
558 }
559 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT)
560 tdata->target_phases |= NO_DISCONNECT;
561
562 tdata->initiator_tag = ccb->csio.tag_id;
563 }
564 if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID)
565 hscb->control |= ccb->csio.tag_action;
566
567 ahc_setup_data(ahc, sim, &ccb->csio, scb);
568 }
569 break;
570 }
571 case XPT_NOTIFY_ACK:
572 case XPT_IMMED_NOTIFY:
573 {
574 struct ahc_tmode_tstate *tstate;
575 struct ahc_tmode_lstate *lstate;
576 cam_status status;
577
578 status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate,
579 &lstate, TRUE);
580
581 if (status != CAM_REQ_CMP) {
582 ccb->ccb_h.status = status;
583 xpt_done(ccb);
584 break;
585 }
586 SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h,
587 sim_links.sle);
588 ccb->ccb_h.status = CAM_REQ_INPROG;
589 ahc_send_lstate_events(ahc, lstate);
590 break;
591 }
592 case XPT_EN_LUN: /* Enable LUN as a target */
593 ahc_handle_en_lun(ahc, sim, ccb);
594 xpt_done(ccb);
595 break;
596 case XPT_ABORT: /* Abort the specified CCB */
597 {
598 ahc_abort_ccb(ahc, sim, ccb);
599 break;
600 }
601 case XPT_SET_TRAN_SETTINGS:
602 {
603 struct ahc_devinfo devinfo;
604 struct ccb_trans_settings *cts;
605 struct ccb_trans_settings_scsi *scsi;
606 struct ccb_trans_settings_spi *spi;
607 struct ahc_initiator_tinfo *tinfo;
608 struct ahc_tmode_tstate *tstate;
609 uint16_t *discenable;
610 uint16_t *tagenable;
611 u_int update_type;
612
613 cts = &ccb->cts;
614 scsi = &cts->proto_specific.scsi;
615 spi = &cts->xport_specific.spi;
616 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim),
617 cts->ccb_h.target_id,
618 cts->ccb_h.target_lun,
619 SIM_CHANNEL(ahc, sim),
620 ROLE_UNKNOWN);
621 tinfo = ahc_fetch_transinfo(ahc, devinfo.channel,
622 devinfo.our_scsiid,
623 devinfo.target, &tstate);
624 update_type = 0;
625 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
626 update_type |= AHC_TRANS_GOAL;
627 discenable = &tstate->discenable;
628 tagenable = &tstate->tagenable;
629 tinfo->curr.protocol_version =
630 cts->protocol_version;
631 tinfo->curr.transport_version =
632 cts->transport_version;
633 tinfo->goal.protocol_version =
634 cts->protocol_version;
635 tinfo->goal.transport_version =
636 cts->transport_version;
637 } else if (cts->type == CTS_TYPE_USER_SETTINGS) {
638 update_type |= AHC_TRANS_USER;
639 discenable = &ahc->user_discenable;
640 tagenable = &ahc->user_tagenable;
641 tinfo->user.protocol_version =
642 cts->protocol_version;
643 tinfo->user.transport_version =
644 cts->transport_version;
645 } else {
646 ccb->ccb_h.status = CAM_REQ_INVALID;
647 xpt_done(ccb);
648 break;
649 }
650
651 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
652 if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0)
653 *discenable |= devinfo.target_mask;
654 else
655 *discenable &= ~devinfo.target_mask;
656 }
657
658 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
659 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0)
660 *tagenable |= devinfo.target_mask;
661 else
662 *tagenable &= ~devinfo.target_mask;
663 }
664
665 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
666 ahc_validate_width(ahc, /*tinfo limit*/NULL,
667 &spi->bus_width, ROLE_UNKNOWN);
668 ahc_set_width(ahc, &devinfo, spi->bus_width,
669 update_type, /*paused*/FALSE);
670 }
671
672 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) {
673 if (update_type == AHC_TRANS_USER)
674 spi->ppr_options = tinfo->user.ppr_options;
675 else
676 spi->ppr_options = tinfo->goal.ppr_options;
677 }
678
679 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) {
680 if (update_type == AHC_TRANS_USER)
681 spi->sync_offset = tinfo->user.offset;
682 else
683 spi->sync_offset = tinfo->goal.offset;
684 }
685
686 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) {
687 if (update_type == AHC_TRANS_USER)
688 spi->sync_period = tinfo->user.period;
689 else
690 spi->sync_period = tinfo->goal.period;
691 }
692
693 if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0)
694 || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) {
695 struct ahc_syncrate *syncrate;
696 u_int maxsync;
697
698 if ((ahc->features & AHC_ULTRA2) != 0)
699 maxsync = AHC_SYNCRATE_DT;
700 else if ((ahc->features & AHC_ULTRA) != 0)
701 maxsync = AHC_SYNCRATE_ULTRA;
702 else
703 maxsync = AHC_SYNCRATE_FAST;
704
705 if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT)
706 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ;
707
708 syncrate = ahc_find_syncrate(ahc, &spi->sync_period,
709 &spi->ppr_options,
710 maxsync);
711 ahc_validate_offset(ahc, /*tinfo limit*/NULL,
712 syncrate, &spi->sync_offset,
713 spi->bus_width, ROLE_UNKNOWN);
714
715 /* We use a period of 0 to represent async */
716 if (spi->sync_offset == 0) {
717 spi->sync_period = 0;
718 spi->ppr_options = 0;
719 }
720
721 ahc_set_syncrate(ahc, &devinfo, syncrate,
722 spi->sync_period, spi->sync_offset,
723 spi->ppr_options, update_type,
724 /*paused*/FALSE);
725 }
726 ccb->ccb_h.status = CAM_REQ_CMP;
727 xpt_done(ccb);
728 break;
729 }
730 case XPT_GET_TRAN_SETTINGS:
731 /* Get default/user set transfer settings for the target */
732 {
733
734 ahc_get_tran_settings(ahc, SIM_SCSI_ID(ahc, sim),
735 SIM_CHANNEL(ahc, sim), &ccb->cts);
736 xpt_done(ccb);
737 break;
738 }
739 case XPT_CALC_GEOMETRY:
740 {
741 int extended;
742
743 extended = SIM_IS_SCSIBUS_B(ahc, sim)
744 ? ahc->flags & AHC_EXTENDED_TRANS_B
745 : ahc->flags & AHC_EXTENDED_TRANS_A;
746 aic_calc_geometry(&ccb->ccg, extended);
747 xpt_done(ccb);
748 break;
749 }
750 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
751 {
752 int found;
753
754 found = ahc_reset_channel(ahc, SIM_CHANNEL(ahc, sim),
755 /*initiate reset*/TRUE);
756 if (bootverbose) {
757 xpt_print_path(SIM_PATH(ahc, sim));
758 printf("SCSI bus reset delivered. "
759 "%d SCBs aborted.\n", found);
760 }
761 ccb->ccb_h.status = CAM_REQ_CMP;
762 xpt_done(ccb);
763 break;
764 }
765 case XPT_TERM_IO: /* Terminate the I/O process */
766 /* XXX Implement */
767 ccb->ccb_h.status = CAM_REQ_INVALID;
768 xpt_done(ccb);
769 break;
770 case XPT_PATH_INQ: /* Path routing inquiry */
771 {
772 struct ccb_pathinq *cpi = &ccb->cpi;
773
774 cpi->version_num = 1; /* XXX??? */
775 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE;
776 if ((ahc->features & AHC_WIDE) != 0)
777 cpi->hba_inquiry |= PI_WIDE_16;
778 if ((ahc->features & AHC_TARGETMODE) != 0) {
779 cpi->target_sprt = PIT_PROCESSOR
780 | PIT_DISCONNECT
781 | PIT_TERM_IO;
782 } else {
783 cpi->target_sprt = 0;
784 }
785 cpi->hba_misc = 0;
786 cpi->hba_eng_cnt = 0;
787 cpi->max_target = (ahc->features & AHC_WIDE) ? 15 : 7;
788 cpi->max_lun = AHC_NUM_LUNS - 1;
789 if (SIM_IS_SCSIBUS_B(ahc, sim)) {
790 cpi->initiator_id = ahc->our_id_b;
791 if ((ahc->flags & AHC_RESET_BUS_B) == 0)
792 cpi->hba_misc |= PIM_NOBUSRESET;
793 } else {
794 cpi->initiator_id = ahc->our_id;
795 if ((ahc->flags & AHC_RESET_BUS_A) == 0)
796 cpi->hba_misc |= PIM_NOBUSRESET;
797 }
798 cpi->bus_id = cam_sim_bus(sim);
799 cpi->base_transfer_speed = 3300;
800 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
801 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN);
802 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
803 cpi->unit_number = cam_sim_unit(sim);
804 cpi->protocol = PROTO_SCSI;
805 cpi->protocol_version = SCSI_REV_2;
806 cpi->transport = XPORT_SPI;
807 cpi->transport_version = 2;
808 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_ST;
809 if ((ahc->features & AHC_DT) != 0) {
810 cpi->transport_version = 3;
811 cpi->xport_specific.spi.ppr_options =
812 SID_SPI_CLOCK_DT_ST;
813 }
814 cpi->ccb_h.status = CAM_REQ_CMP;
815 xpt_done(ccb);
816 break;
817 }
818 default:
819 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
820 xpt_done(ccb);
821 break;
822 }
823 }
824
825 static void
826 ahc_get_tran_settings(struct ahc_softc *ahc, int our_id, char channel,
827 struct ccb_trans_settings *cts)
828 {
829 struct ahc_devinfo devinfo;
830 struct ccb_trans_settings_scsi *scsi;
831 struct ccb_trans_settings_spi *spi;
832 struct ahc_initiator_tinfo *targ_info;
833 struct ahc_tmode_tstate *tstate;
834 struct ahc_transinfo *tinfo;
835
836 scsi = &cts->proto_specific.scsi;
837 spi = &cts->xport_specific.spi;
838 ahc_compile_devinfo(&devinfo, our_id,
839 cts->ccb_h.target_id,
840 cts->ccb_h.target_lun,
841 channel, ROLE_UNKNOWN);
842 targ_info = ahc_fetch_transinfo(ahc, devinfo.channel,
843 devinfo.our_scsiid,
844 devinfo.target, &tstate);
845
846 if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
847 tinfo = &targ_info->curr;
848 else
849 tinfo = &targ_info->user;
850
851 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
852 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB;
853 if (cts->type == CTS_TYPE_USER_SETTINGS) {
854 if ((ahc->user_discenable & devinfo.target_mask) != 0)
855 spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
856
857 if ((ahc->user_tagenable & devinfo.target_mask) != 0)
858 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
859 } else {
860 if ((tstate->discenable & devinfo.target_mask) != 0)
861 spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
862
863 if ((tstate->tagenable & devinfo.target_mask) != 0)
864 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
865 }
866 cts->protocol_version = tinfo->protocol_version;
867 cts->transport_version = tinfo->transport_version;
868
869 spi->sync_period = tinfo->period;
870 spi->sync_offset = tinfo->offset;
871 spi->bus_width = tinfo->width;
872 spi->ppr_options = tinfo->ppr_options;
873
874 cts->protocol = PROTO_SCSI;
875 cts->transport = XPORT_SPI;
876 spi->valid = CTS_SPI_VALID_SYNC_RATE
877 | CTS_SPI_VALID_SYNC_OFFSET
878 | CTS_SPI_VALID_BUS_WIDTH
879 | CTS_SPI_VALID_PPR_OPTIONS;
880
881 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
882 scsi->valid = CTS_SCSI_VALID_TQ;
883 spi->valid |= CTS_SPI_VALID_DISC;
884 } else {
885 scsi->valid = 0;
886 }
887
888 cts->ccb_h.status = CAM_REQ_CMP;
889 }
890
891 static void
892 ahc_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg)
893 {
894 struct ahc_softc *ahc;
895 struct cam_sim *sim;
896
897 sim = (struct cam_sim *)callback_arg;
898 ahc = (struct ahc_softc *)cam_sim_softc(sim);
899 switch (code) {
900 case AC_LOST_DEVICE:
901 {
902 struct ahc_devinfo devinfo;
903
904 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim),
905 xpt_path_target_id(path),
906 xpt_path_lun_id(path),
907 SIM_CHANNEL(ahc, sim),
908 ROLE_UNKNOWN);
909
910 /*
911 * Revert to async/narrow transfers
912 * for the next device.
913 */
914 ahc_set_width(ahc, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
915 AHC_TRANS_GOAL|AHC_TRANS_CUR, /*paused*/FALSE);
916 ahc_set_syncrate(ahc, &devinfo, /*syncrate*/NULL,
917 /*period*/0, /*offset*/0, /*ppr_options*/0,
918 AHC_TRANS_GOAL|AHC_TRANS_CUR,
919 /*paused*/FALSE);
920 break;
921 }
922 default:
923 break;
924 }
925 }
926
927 static void
928 ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments,
929 int error)
930 {
931 struct scb *scb;
932 union ccb *ccb;
933 struct ahc_softc *ahc;
934 struct ahc_initiator_tinfo *tinfo;
935 struct ahc_tmode_tstate *tstate;
936 u_int mask;
937
938 scb = (struct scb *)arg;
939 ccb = scb->io_ctx;
940 ahc = scb->ahc_softc;
941
942 if (error != 0) {
943 if (error == EFBIG)
944 aic_set_transaction_status(scb, CAM_REQ_TOO_BIG);
945 else
946 aic_set_transaction_status(scb, CAM_REQ_CMP_ERR);
947 if (nsegments != 0)
948 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap);
949 ahc_free_scb(ahc, scb);
950 xpt_done(ccb);
951 return;
952 }
953 if (nsegments != 0) {
954 struct ahc_dma_seg *sg;
955 bus_dma_segment_t *end_seg;
956 bus_dmasync_op_t op;
957
958 end_seg = dm_segs + nsegments;
959
960 /* Copy the segments into our SG list */
961 sg = scb->sg_list;
962 while (dm_segs < end_seg) {
963 uint32_t len;
964
965 sg->addr = aic_htole32(dm_segs->ds_addr);
966 len = dm_segs->ds_len
967 | ((dm_segs->ds_addr >> 8) & 0x7F000000);
968 sg->len = aic_htole32(len);
969 sg++;
970 dm_segs++;
971 }
972
973 /*
974 * Note where to find the SG entries in bus space.
975 * We also set the full residual flag which the
976 * sequencer will clear as soon as a data transfer
977 * occurs.
978 */
979 scb->hscb->sgptr = aic_htole32(scb->sg_list_phys|SG_FULL_RESID);
980
981 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
982 op = BUS_DMASYNC_PREREAD;
983 else
984 op = BUS_DMASYNC_PREWRITE;
985
986 bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op);
987
988 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
989 struct target_data *tdata;
990
991 tdata = &scb->hscb->shared_data.tdata;
992 tdata->target_phases |= DPHASE_PENDING;
993 /*
994 * CAM data direction is relative to the initiator.
995 */
996 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
997 tdata->data_phase = P_DATAOUT;
998 else
999 tdata->data_phase = P_DATAIN;
1000
1001 /*
1002 * If the transfer is of an odd length and in the
1003 * "in" direction (scsi->HostBus), then it may
1004 * trigger a bug in the 'WideODD' feature of
1005 * non-Ultra2 chips. Force the total data-length
1006 * to be even by adding an extra, 1 byte, SG,
1007 * element. We do this even if we are not currently
1008 * negotiated wide as negotiation could occur before
1009 * this command is executed.
1010 */
1011 if ((ahc->bugs & AHC_TMODE_WIDEODD_BUG) != 0
1012 && (ccb->csio.dxfer_len & 0x1) != 0
1013 && (ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1014
1015 nsegments++;
1016 if (nsegments > AHC_NSEG) {
1017
1018 aic_set_transaction_status(scb,
1019 CAM_REQ_TOO_BIG);
1020 bus_dmamap_unload(ahc->buffer_dmat,
1021 scb->dmamap);
1022 ahc_free_scb(ahc, scb);
1023 xpt_done(ccb);
1024 return;
1025 }
1026 sg->addr = aic_htole32(ahc->dma_bug_buf);
1027 sg->len = aic_htole32(1);
1028 sg++;
1029 }
1030 }
1031 sg--;
1032 sg->len |= aic_htole32(AHC_DMA_LAST_SEG);
1033
1034 /* Copy the first SG into the "current" data pointer area */
1035 scb->hscb->dataptr = scb->sg_list->addr;
1036 scb->hscb->datacnt = scb->sg_list->len;
1037 } else {
1038 scb->hscb->sgptr = aic_htole32(SG_LIST_NULL);
1039 scb->hscb->dataptr = 0;
1040 scb->hscb->datacnt = 0;
1041 }
1042
1043 scb->sg_count = nsegments;
1044
1045 /*
1046 * Last time we need to check if this SCB needs to
1047 * be aborted.
1048 */
1049 if (aic_get_transaction_status(scb) != CAM_REQ_INPROG) {
1050 if (nsegments != 0)
1051 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap);
1052 ahc_free_scb(ahc, scb);
1053 xpt_done(ccb);
1054 return;
1055 }
1056
1057 tinfo = ahc_fetch_transinfo(ahc, SCSIID_CHANNEL(ahc, scb->hscb->scsiid),
1058 SCSIID_OUR_ID(scb->hscb->scsiid),
1059 SCSIID_TARGET(ahc, scb->hscb->scsiid),
1060 &tstate);
1061
1062 mask = SCB_GET_TARGET_MASK(ahc, scb);
1063 scb->hscb->scsirate = tinfo->scsirate;
1064 scb->hscb->scsioffset = tinfo->curr.offset;
1065 if ((tstate->ultraenb & mask) != 0)
1066 scb->hscb->control |= ULTRAENB;
1067
1068 if ((tstate->discenable & mask) != 0
1069 && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0)
1070 scb->hscb->control |= DISCENB;
1071
1072 if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0
1073 && (tinfo->goal.width != 0
1074 || tinfo->goal.offset != 0
1075 || tinfo->goal.ppr_options != 0)) {
1076 scb->flags |= SCB_NEGOTIATE;
1077 scb->hscb->control |= MK_MESSAGE;
1078 } else if ((tstate->auto_negotiate & mask) != 0) {
1079 scb->flags |= SCB_AUTO_NEGOTIATE;
1080 scb->hscb->control |= MK_MESSAGE;
1081 }
1082
1083 LIST_INSERT_HEAD(&ahc->pending_scbs, scb, pending_links);
1084
1085 ccb->ccb_h.status |= CAM_SIM_QUEUED;
1086
1087 /*
1088 * We only allow one untagged transaction
1089 * per target in the initiator role unless
1090 * we are storing a full busy target *lun*
1091 * table in SCB space.
1092 */
1093 if ((scb->hscb->control & (TARGET_SCB|TAG_ENB)) == 0
1094 && (ahc->flags & AHC_SCB_BTT) == 0) {
1095 struct scb_tailq *untagged_q;
1096 int target_offset;
1097
1098 target_offset = SCB_GET_TARGET_OFFSET(ahc, scb);
1099 untagged_q = &(ahc->untagged_queues[target_offset]);
1100 TAILQ_INSERT_TAIL(untagged_q, scb, links.tqe);
1101 scb->flags |= SCB_UNTAGGEDQ;
1102 if (TAILQ_FIRST(untagged_q) != scb) {
1103 return;
1104 }
1105 }
1106 scb->flags |= SCB_ACTIVE;
1107
1108 /*
1109 * Timers are disabled while recovery is in progress.
1110 */
1111 aic_scb_timer_start(scb);
1112
1113 if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) {
1114 /* Define a mapping from our tag to the SCB. */
1115 ahc->scb_data->scbindex[scb->hscb->tag] = scb;
1116 ahc_pause(ahc);
1117 if ((ahc->flags & AHC_PAGESCBS) == 0)
1118 ahc_outb(ahc, SCBPTR, scb->hscb->tag);
1119 ahc_outb(ahc, TARG_IMMEDIATE_SCB, scb->hscb->tag);
1120 ahc_unpause(ahc);
1121 } else {
1122 ahc_queue_scb(ahc, scb);
1123 }
1124 }
1125
1126 static void
1127 ahc_poll(struct cam_sim *sim)
1128 {
1129 struct ahc_softc *ahc;
1130
1131 ahc = (struct ahc_softc *)cam_sim_softc(sim);
1132 ahc_intr(ahc);
1133 }
1134
1135 static void
1136 ahc_setup_data(struct ahc_softc *ahc, struct cam_sim *sim,
1137 struct ccb_scsiio *csio, struct scb *scb)
1138 {
1139 struct hardware_scb *hscb;
1140 struct ccb_hdr *ccb_h;
1141
1142 hscb = scb->hscb;
1143 ccb_h = &csio->ccb_h;
1144
1145 csio->resid = 0;
1146 csio->sense_resid = 0;
1147 if (ccb_h->func_code == XPT_SCSI_IO) {
1148 hscb->cdb_len = csio->cdb_len;
1149 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) {
1150
1151 if (hscb->cdb_len > sizeof(hscb->cdb32)
1152 || (ccb_h->flags & CAM_CDB_PHYS) != 0) {
1153 aic_set_transaction_status(scb,
1154 CAM_REQ_INVALID);
1155 ahc_free_scb(ahc, scb);
1156 xpt_done((union ccb *)csio);
1157 return;
1158 }
1159 if (hscb->cdb_len > 12) {
1160 memcpy(hscb->cdb32,
1161 csio->cdb_io.cdb_ptr,
1162 hscb->cdb_len);
1163 scb->flags |= SCB_CDB32_PTR;
1164 } else {
1165 memcpy(hscb->shared_data.cdb,
1166 csio->cdb_io.cdb_ptr,
1167 hscb->cdb_len);
1168 }
1169 } else {
1170 if (hscb->cdb_len > 12) {
1171 memcpy(hscb->cdb32, csio->cdb_io.cdb_bytes,
1172 hscb->cdb_len);
1173 scb->flags |= SCB_CDB32_PTR;
1174 } else {
1175 memcpy(hscb->shared_data.cdb,
1176 csio->cdb_io.cdb_bytes,
1177 hscb->cdb_len);
1178 }
1179 }
1180 }
1181
1182 /* Only use S/G if there is a transfer */
1183 if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
1184 if ((ccb_h->flags & CAM_SCATTER_VALID) == 0) {
1185 /* We've been given a pointer to a single buffer */
1186 if ((ccb_h->flags & CAM_DATA_PHYS) == 0) {
1187 int s;
1188 int error;
1189
1190 s = splsoftvm();
1191 error = bus_dmamap_load(ahc->buffer_dmat,
1192 scb->dmamap,
1193 csio->data_ptr,
1194 csio->dxfer_len,
1195 ahc_execute_scb,
1196 scb, /*flags*/0);
1197 if (error == EINPROGRESS) {
1198 /*
1199 * So as to maintain ordering,
1200 * freeze the controller queue
1201 * until our mapping is
1202 * returned.
1203 */
1204 xpt_freeze_simq(sim,
1205 /*count*/1);
1206 scb->io_ctx->ccb_h.status |=
1207 CAM_RELEASE_SIMQ;
1208 }
1209 splx(s);
1210 } else {
1211 struct bus_dma_segment seg;
1212
1213 /* Pointer to physical buffer */
1214 if (csio->dxfer_len > AHC_MAXTRANSFER_SIZE)
1215 panic("ahc_setup_data - Transfer size "
1216 "larger than can device max");
1217
1218 seg.ds_addr =
1219 (bus_addr_t)(vm_offset_t)csio->data_ptr;
1220 seg.ds_len = csio->dxfer_len;
1221 ahc_execute_scb(scb, &seg, 1, 0);
1222 }
1223 } else {
1224 struct bus_dma_segment *segs;
1225
1226 if ((ccb_h->flags & CAM_DATA_PHYS) != 0)
1227 panic("ahc_setup_data - Physical segment "
1228 "pointers unsupported");
1229
1230 if ((ccb_h->flags & CAM_SG_LIST_PHYS) == 0)
1231 panic("ahc_setup_data - Virtual segment "
1232 "addresses unsupported");
1233
1234 /* Just use the segments provided */
1235 segs = (struct bus_dma_segment *)csio->data_ptr;
1236 ahc_execute_scb(scb, segs, csio->sglist_cnt, 0);
1237 }
1238 } else {
1239 ahc_execute_scb(scb, NULL, 0, 0);
1240 }
1241 }
1242
1243 static void
1244 ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim, union ccb *ccb)
1245 {
1246 union ccb *abort_ccb;
1247
1248 abort_ccb = ccb->cab.abort_ccb;
1249 switch (abort_ccb->ccb_h.func_code) {
1250 case XPT_ACCEPT_TARGET_IO:
1251 case XPT_IMMED_NOTIFY:
1252 case XPT_CONT_TARGET_IO:
1253 {
1254 struct ahc_tmode_tstate *tstate;
1255 struct ahc_tmode_lstate *lstate;
1256 struct ccb_hdr_slist *list;
1257 cam_status status;
1258
1259 status = ahc_find_tmode_devs(ahc, sim, abort_ccb, &tstate,
1260 &lstate, TRUE);
1261
1262 if (status != CAM_REQ_CMP) {
1263 ccb->ccb_h.status = status;
1264 break;
1265 }
1266
1267 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO)
1268 list = &lstate->accept_tios;
1269 else if (abort_ccb->ccb_h.func_code == XPT_IMMED_NOTIFY)
1270 list = &lstate->immed_notifies;
1271 else
1272 list = NULL;
1273
1274 if (list != NULL) {
1275 struct ccb_hdr *curelm;
1276 int found;
1277
1278 curelm = SLIST_FIRST(list);
1279 found = 0;
1280 if (curelm == &abort_ccb->ccb_h) {
1281 found = 1;
1282 SLIST_REMOVE_HEAD(list, sim_links.sle);
1283 } else {
1284 while(curelm != NULL) {
1285 struct ccb_hdr *nextelm;
1286
1287 nextelm =
1288 SLIST_NEXT(curelm, sim_links.sle);
1289
1290 if (nextelm == &abort_ccb->ccb_h) {
1291 found = 1;
1292 SLIST_NEXT(curelm,
1293 sim_links.sle) =
1294 SLIST_NEXT(nextelm,
1295 sim_links.sle);
1296 break;
1297 }
1298 curelm = nextelm;
1299 }
1300 }
1301
1302 if (found) {
1303 abort_ccb->ccb_h.status = CAM_REQ_ABORTED;
1304 xpt_done(abort_ccb);
1305 ccb->ccb_h.status = CAM_REQ_CMP;
1306 } else {
1307 xpt_print_path(abort_ccb->ccb_h.path);
1308 printf("Not found\n");
1309 ccb->ccb_h.status = CAM_PATH_INVALID;
1310 }
1311 break;
1312 }
1313 /* FALLTHROUGH */
1314 }
1315 case XPT_SCSI_IO:
1316 /* XXX Fully implement the hard ones */
1317 ccb->ccb_h.status = CAM_UA_ABORT;
1318 break;
1319 default:
1320 ccb->ccb_h.status = CAM_REQ_INVALID;
1321 break;
1322 }
1323 xpt_done(ccb);
1324 }
1325
1326 void
1327 ahc_send_async(struct ahc_softc *ahc, char channel, u_int target,
1328 u_int lun, ac_code code, void *opt_arg)
1329 {
1330 struct ccb_trans_settings cts;
1331 struct cam_path *path;
1332 void *arg;
1333 int error;
1334
1335 arg = NULL;
1336 error = ahc_create_path(ahc, channel, target, lun, &path);
1337
1338 if (error != CAM_REQ_CMP)
1339 return;
1340
1341 switch (code) {
1342 case AC_TRANSFER_NEG:
1343 {
1344 struct ccb_trans_settings_scsi *scsi;
1345
1346 cts.type = CTS_TYPE_CURRENT_SETTINGS;
1347 scsi = &cts.proto_specific.scsi;
1348 cts.ccb_h.path = path;
1349 cts.ccb_h.target_id = target;
1350 cts.ccb_h.target_lun = lun;
1351 ahc_get_tran_settings(ahc, channel == 'A' ? ahc->our_id
1352 : ahc->our_id_b,
1353 channel, &cts);
1354 arg = &cts;
1355 scsi->valid &= ~CTS_SCSI_VALID_TQ;
1356 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
1357 if (opt_arg == NULL)
1358 break;
1359 if (*((ahc_queue_alg *)opt_arg) == AHC_QUEUE_TAGGED)
1360 scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB;
1361 scsi->valid |= CTS_SCSI_VALID_TQ;
1362 break;
1363 }
1364 case AC_SENT_BDR:
1365 case AC_BUS_RESET:
1366 break;
1367 default:
1368 panic("ahc_send_async: Unexpected async event");
1369 }
1370 xpt_async(code, path, arg);
1371 xpt_free_path(path);
1372 }
1373
1374 void
1375 ahc_platform_set_tags(struct ahc_softc *ahc,
1376 struct ahc_devinfo *devinfo, int enable)
1377 {
1378 }
1379
1380 int
1381 ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg)
1382 {
1383 ahc->platform_data = malloc(sizeof(struct ahc_platform_data), M_DEVBUF,
1384 M_NOWAIT | M_ZERO);
1385 if (ahc->platform_data == NULL)
1386 return (ENOMEM);
1387 return (0);
1388 }
1389
1390 void
1391 ahc_platform_free(struct ahc_softc *ahc)
1392 {
1393 struct ahc_platform_data *pdata;
1394
1395 pdata = ahc->platform_data;
1396 if (pdata != NULL) {
1397 if (pdata->regs != NULL)
1398 bus_release_resource(ahc->dev_softc,
1399 pdata->regs_res_type,
1400 pdata->regs_res_id,
1401 pdata->regs);
1402
1403 if (pdata->irq != NULL)
1404 bus_release_resource(ahc->dev_softc,
1405 pdata->irq_res_type,
1406 0, pdata->irq);
1407
1408 if (pdata->sim_b != NULL) {
1409 xpt_async(AC_LOST_DEVICE, pdata->path_b, NULL);
1410 xpt_free_path(pdata->path_b);
1411 xpt_bus_deregister(cam_sim_path(pdata->sim_b));
1412 cam_sim_free(pdata->sim_b, /*free_devq*/TRUE);
1413 }
1414 if (pdata->sim != NULL) {
1415 xpt_async(AC_LOST_DEVICE, pdata->path, NULL);
1416 xpt_free_path(pdata->path);
1417 xpt_bus_deregister(cam_sim_path(pdata->sim));
1418 cam_sim_free(pdata->sim, /*free_devq*/TRUE);
1419 }
1420 if (pdata->eh != NULL)
1421 EVENTHANDLER_DEREGISTER(shutdown_final, pdata->eh);
1422 free(ahc->platform_data, M_DEVBUF);
1423 }
1424 }
1425
1426 int
1427 ahc_softc_comp(struct ahc_softc *lahc, struct ahc_softc *rahc)
1428 {
1429 /* We don't sort softcs under FreeBSD so report equal always */
1430 return (0);
1431 }
1432
1433 int
1434 ahc_detach(device_t dev)
1435 {
1436 struct ahc_softc *ahc;
1437
1438 device_printf(dev, "detaching device\n");
1439 ahc = device_get_softc(dev);
1440 ahc_lock(ahc);
1441 TAILQ_REMOVE(&ahc_tailq, ahc, links);
1442 ahc_intr_enable(ahc, FALSE);
1443 bus_teardown_intr(dev, ahc->platform_data->irq, ahc->platform_data->ih);
1444 ahc_unlock(ahc);
1445 ahc_free(ahc);
1446 return (0);
1447 }
1448
1449 #if 0
1450 static void
1451 ahc_dump_targcmd(struct target_cmd *cmd)
1452 {
1453 uint8_t *byte;
1454 uint8_t *last_byte;
1455 int i;
1456
1457 byte = &cmd->initiator_channel;
1458 /* Debugging info for received commands */
1459 last_byte = &cmd[1].initiator_channel;
1460
1461 i = 0;
1462 while (byte < last_byte) {
1463 if (i == 0)
1464 printf("\t");
1465 printf("%#x", *byte++);
1466 i++;
1467 if (i == 8) {
1468 printf("\n");
1469 i = 0;
1470 } else {
1471 printf(", ");
1472 }
1473 }
1474 }
1475 #endif
1476
1477 static int
1478 ahc_modevent(module_t mod, int type, void *data)
1479 {
1480 /* XXX Deal with busy status on unload. */
1481 /* XXX Deal with unknown events */
1482 return 0;
1483 }
1484
1485 static moduledata_t ahc_mod = {
1486 "ahc",
1487 ahc_modevent,
1488 NULL
1489 };
1490
1491 DECLARE_MODULE(ahc, ahc_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
1492 MODULE_DEPEND(ahc, cam, 1, 1, 1);
1493 MODULE_VERSION(ahc, 1);
Cache object: 78f445e6092c4044339e58b7a119a2e3
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