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Sync CAM with FreeBSD using lockmgr locks instead of mutexes.
[dragonfly.git] / sys / dev / disk / aic7xxx / aic7xxx_osm.c
blob26c02d96fb35cb87cb1978d7fba4e50e8a646886
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 * $FreeBSD: src/sys/dev/aic7xxx/aic7xxx_osm.c,v 1.45 2006/09/05 20:28:28 mjacob Exp $
34 * $DragonFly: src/sys/dev/disk/aic7xxx/aic7xxx_osm.c,v 1.23 2008/05/18 20:30:21 pavalos Exp $
35 */
36
37 #include "aic7xxx_osm.h"
38 #include "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 "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_MPSAFE, ahc_platform_intr, ahc,
111 &ahc->platform_data->ih, NULL);
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 int bus_id;
149 int bus_id2;
150 struct cam_sim *sim;
151 struct cam_sim *sim2;
152 struct cam_path *path;
153 struct cam_path *path2;
154 int count;
155
156 count = 0;
157 sim = NULL;
158 sim2 = NULL;
159 path = NULL;
160 path2 = NULL;
161
162 /*
163 * Create a thread to perform all recovery.
164 */
165 if (ahc_spawn_recovery_thread(ahc) != 0)
166 goto fail;
167
168 ahc_controller_info(ahc, ahc_info);
169 kprintf("%s\n", ahc_info);
170 ahc_lock(ahc);
171
172 /*
173 * Attach secondary channel first if the user has
174 * declared it the primary channel.
175 */
176 if ((ahc->features & AHC_TWIN) != 0
177 && (ahc->flags & AHC_PRIMARY_CHANNEL) != 0) {
178 bus_id = 1;
179 bus_id2 = 0;
180 } else {
181 bus_id = 0;
182 bus_id2 = 1;
183 }
184
185 /*
186 * Construct our first channel SIM entry
187 */
188 sim = cam_sim_alloc(ahc_action, ahc_poll, "ahc", ahc,
189 device_get_unit(ahc->dev_softc),
190 &ahc->platform_data->lock, 1, AHC_MAX_QUEUE, NULL);
191 if (sim == NULL)
192 goto fail;
193
194 if (xpt_bus_register(sim, bus_id) != CAM_SUCCESS) {
195 cam_sim_free(sim);
196 sim = NULL;
197 goto fail;
198 }
199
200 if (xpt_create_path(&path, /*periph*/NULL,
201 cam_sim_path(sim), CAM_TARGET_WILDCARD,
202 CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
203 xpt_bus_deregister(cam_sim_path(sim));
204 cam_sim_free(sim);
205 sim = NULL;
206 goto fail;
207 }
208
209 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
210 csa.ccb_h.func_code = XPT_SASYNC_CB;
211 csa.event_enable = AC_LOST_DEVICE;
212 csa.callback = ahc_async;
213 csa.callback_arg = sim;
214 xpt_action((union ccb *)&csa);
215 count++;
216
217 if (ahc->features & AHC_TWIN) {
218 sim2 = cam_sim_alloc(ahc_action, ahc_poll, "ahc",
219 ahc, device_get_unit(ahc->dev_softc),
220 &ahc->platform_data->lock, 1,
221 AHC_MAX_QUEUE, NULL);
222
223 if (sim2 == NULL) {
224 kprintf("ahc_attach: Unable to attach second "
225 "bus due to resource shortage");
226 goto fail;
227 }
228
229 if (xpt_bus_register(sim2, bus_id2) != CAM_SUCCESS) {
230 kprintf("ahc_attach: Unable to attach second "
231 "bus due to resource shortage");
232 /*
233 * We do not want to destroy the device queue
234 * because the first bus is using it.
235 */
236 cam_sim_free(sim2);
237 goto fail;
238 }
239
240 if (xpt_create_path(&path2, /*periph*/NULL,
241 cam_sim_path(sim2),
242 CAM_TARGET_WILDCARD,
243 CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
244 xpt_bus_deregister(cam_sim_path(sim2));
245 cam_sim_free(sim2);
246 sim2 = NULL;
247 goto fail;
248 }
249 xpt_setup_ccb(&csa.ccb_h, path2, /*priority*/5);
250 csa.ccb_h.func_code = XPT_SASYNC_CB;
251 csa.event_enable = AC_LOST_DEVICE;
252 csa.callback = ahc_async;
253 csa.callback_arg = sim2;
254 xpt_action((union ccb *)&csa);
255 count++;
256 }
257
258 fail:
259 if ((ahc->features & AHC_TWIN) != 0
260 && (ahc->flags & AHC_PRIMARY_CHANNEL) != 0) {
261 ahc->platform_data->sim_b = sim;
262 ahc->platform_data->path_b = path;
263 ahc->platform_data->sim = sim2;
264 ahc->platform_data->path = path2;
265 } else {
266 ahc->platform_data->sim = sim;
267 ahc->platform_data->path = path;
268 ahc->platform_data->sim_b = sim2;
269 ahc->platform_data->path_b = path2;
270 }
271 ahc_unlock(ahc);
272
273 if (count != 0) {
274 /* We have to wait until after any system dumps... */
275 ahc->platform_data->eh =
276 EVENTHANDLER_REGISTER(shutdown_post_sync, ahc_shutdown,
277 ahc, SHUTDOWN_PRI_DRIVER);
278 ahc_intr_enable(ahc, TRUE);
279 }
280
281 return (count);
282 }
283
284 /*
285 * Catch an interrupt from the adapter
286 */
287 void
288 ahc_platform_intr(void *arg)
289 {
290 struct ahc_softc *ahc;
291
292 ahc = (struct ahc_softc *)arg;
293 ahc_lock(ahc);
294 ahc_intr(ahc);
295 ahc_unlock(ahc);
296 }
297
298 /*
299 * We have an scb which has been processed by the
300 * adaptor, now we look to see how the operation
301 * went.
302 */
303 void
304 ahc_done(struct ahc_softc *ahc, struct scb *scb)
305 {
306 union ccb *ccb;
307
308 CAM_DEBUG(scb->io_ctx->ccb_h.path, CAM_DEBUG_TRACE,
309 ("ahc_done - scb %d\n", scb->hscb->tag));
310
311 ccb = scb->io_ctx;
312 LIST_REMOVE(scb, pending_links);
313 if ((scb->flags & SCB_TIMEDOUT) != 0)
314 LIST_REMOVE(scb, timedout_links);
315 if ((scb->flags & SCB_UNTAGGEDQ) != 0) {
316 struct scb_tailq *untagged_q;
317 int target_offset;
318
319 target_offset = SCB_GET_TARGET_OFFSET(ahc, scb);
320 untagged_q = &ahc->untagged_queues[target_offset];
321 TAILQ_REMOVE(untagged_q, scb, links.tqe);
322 scb->flags &= ~SCB_UNTAGGEDQ;
323 ahc_run_untagged_queue(ahc, untagged_q);
324 }
325
326 callout_stop(&scb->io_timer);
327
328 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
329 bus_dmasync_op_t op;
330
331 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
332 op = BUS_DMASYNC_POSTREAD;
333 else
334 op = BUS_DMASYNC_POSTWRITE;
335 bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op);
336 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap);
337 }
338
339 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
340 struct cam_path *ccb_path;
341
342 /*
343 * If we have finally disconnected, clean up our
344 * pending device state.
345 * XXX - There may be error states that cause where
346 * we will remain connected.
347 */
348 ccb_path = ccb->ccb_h.path;
349 if (ahc->pending_device != NULL
350 && xpt_path_comp(ahc->pending_device->path, ccb_path) == 0) {
351
352 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
353 ahc->pending_device = NULL;
354 } else {
355 if (bootverbose) {
356 xpt_print_path(ccb->ccb_h.path);
357 kprintf("Still connected\n");
358 }
359 aic_freeze_ccb(ccb);
360 }
361 }
362
363 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG)
364 ccb->ccb_h.status |= CAM_REQ_CMP;
365 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
366 ahc_free_scb(ahc, scb);
367 xpt_done(ccb);
368 return;
369 }
370
371 /*
372 * If the recovery SCB completes, we have to be
373 * out of our timeout.
374 */
375 if ((scb->flags & SCB_RECOVERY_SCB) != 0) {
376 struct scb *list_scb;
377
378 ahc->scb_data->recovery_scbs--;
379
380 if (aic_get_transaction_status(scb) == CAM_BDR_SENT
381 || aic_get_transaction_status(scb) == CAM_REQ_ABORTED)
382 aic_set_transaction_status(scb, CAM_CMD_TIMEOUT);
383
384 if (ahc->scb_data->recovery_scbs == 0) {
385 /*
386 * All recovery actions have completed successfully,
387 * so reinstate the timeouts for all other pending
388 * commands.
389 */
390 LIST_FOREACH(list_scb, &ahc->pending_scbs,
391 pending_links) {
392
393 aic_scb_timer_reset(list_scb,
394 aic_get_timeout(scb));
395 }
396
397 ahc_print_path(ahc, scb);
398 kprintf("no longer in timeout, status = %x\n",
399 ccb->ccb_h.status);
400 }
401 }
402
403 /* Don't clobber any existing error state */
404 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) {
405 ccb->ccb_h.status |= CAM_REQ_CMP;
406 } else if ((scb->flags & SCB_SENSE) != 0) {
407 /*
408 * We performed autosense retrieval.
409 *
410 * Zero any sense not transferred by the
411 * device. The SCSI spec mandates that any
412 * untransfered data should be assumed to be
413 * zero. Complete the 'bounce' of sense information
414 * through buffers accessible via bus-space by
415 * copying it into the clients csio.
416 */
417 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data));
418 memcpy(&ccb->csio.sense_data,
419 ahc_get_sense_buf(ahc, scb),
420 (aic_le32toh(scb->sg_list->len) & AHC_SG_LEN_MASK)
421 - ccb->csio.sense_resid);
422 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID;
423 }
424 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
425 ahc_free_scb(ahc, scb);
426 xpt_done(ccb);
427 }
428
429 static void
430 ahc_action(struct cam_sim *sim, union ccb *ccb)
431 {
432 struct ahc_softc *ahc;
433 struct ahc_tmode_lstate *lstate;
434 u_int target_id;
435 u_int our_id;
436
437 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahc_action\n"));
438
439 ahc = (struct ahc_softc *)cam_sim_softc(sim);
440
441 target_id = ccb->ccb_h.target_id;
442 our_id = SIM_SCSI_ID(ahc, sim);
443
444 switch (ccb->ccb_h.func_code) {
445 /* Common cases first */
446 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */
447 case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/
448 {
449 struct ahc_tmode_tstate *tstate;
450 cam_status status;
451
452 status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate,
453 &lstate, TRUE);
454
455 if (status != CAM_REQ_CMP) {
456 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
457 /* Response from the black hole device */
458 tstate = NULL;
459 lstate = ahc->black_hole;
460 } else {
461 ccb->ccb_h.status = status;
462 xpt_done(ccb);
463 break;
464 }
465 }
466 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
467
468 SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h,
469 sim_links.sle);
470 ccb->ccb_h.status = CAM_REQ_INPROG;
471 if ((ahc->flags & AHC_TQINFIFO_BLOCKED) != 0)
472 ahc_run_tqinfifo(ahc, /*paused*/FALSE);
473 break;
474 }
475
476 /*
477 * The target_id represents the target we attempt to
478 * select. In target mode, this is the initiator of
479 * the original command.
480 */
481 our_id = target_id;
482 target_id = ccb->csio.init_id;
483 /* FALLTHROUGH */
484 }
485 case XPT_SCSI_IO: /* Execute the requested I/O operation */
486 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */
487 {
488 struct scb *scb;
489 struct hardware_scb *hscb;
490
491 if ((ahc->flags & AHC_INITIATORROLE) == 0
492 && (ccb->ccb_h.func_code == XPT_SCSI_IO
493 || ccb->ccb_h.func_code == XPT_RESET_DEV)) {
494 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
495 xpt_done(ccb);
496 return;
497 }
498
499 /*
500 * get an scb to use.
501 */
502 if ((scb = ahc_get_scb(ahc)) == NULL) {
503
504 xpt_freeze_simq(sim, /*count*/1);
505 ahc->flags |= AHC_RESOURCE_SHORTAGE;
506 ccb->ccb_h.status = CAM_REQUEUE_REQ;
507 xpt_done(ccb);
508 return;
509 }
510
511 hscb = scb->hscb;
512
513 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE,
514 ("start scb(%p)\n", scb));
515 scb->io_ctx = ccb;
516 /*
517 * So we can find the SCB when an abort is requested
518 */
519 ccb->ccb_h.ccb_scb_ptr = scb;
520
521 /*
522 * Put all the arguments for the xfer in the scb
523 */
524 hscb->control = 0;
525 hscb->scsiid = BUILD_SCSIID(ahc, sim, target_id, our_id);
526 hscb->lun = ccb->ccb_h.target_lun;
527 if (ccb->ccb_h.func_code == XPT_RESET_DEV) {
528 hscb->cdb_len = 0;
529 scb->flags |= SCB_DEVICE_RESET;
530 hscb->control |= MK_MESSAGE;
531 ahc_execute_scb(scb, NULL, 0, 0);
532 } else {
533 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
534 struct target_data *tdata;
535
536 tdata = &hscb->shared_data.tdata;
537 if (ahc->pending_device == lstate)
538 scb->flags |= SCB_TARGET_IMMEDIATE;
539 hscb->control |= TARGET_SCB;
540 scb->flags |= SCB_TARGET_SCB;
541 tdata->target_phases = 0;
542 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
543 tdata->target_phases |= SPHASE_PENDING;
544 tdata->scsi_status =
545 ccb->csio.scsi_status;
546 }
547 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT)
548 tdata->target_phases |= NO_DISCONNECT;
549
550 tdata->initiator_tag = ccb->csio.tag_id;
551 }
552 if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID)
553 hscb->control |= ccb->csio.tag_action;
554
555 ahc_setup_data(ahc, sim, &ccb->csio, scb);
556 }
557 break;
558 }
559 case XPT_NOTIFY_ACK:
560 case XPT_IMMED_NOTIFY:
561 {
562 struct ahc_tmode_tstate *tstate;
563 struct ahc_tmode_lstate *lstate;
564 cam_status status;
565
566 status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate,
567 &lstate, TRUE);
568
569 if (status != CAM_REQ_CMP) {
570 ccb->ccb_h.status = status;
571 xpt_done(ccb);
572 break;
573 }
574 SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h,
575 sim_links.sle);
576 ccb->ccb_h.status = CAM_REQ_INPROG;
577 ahc_send_lstate_events(ahc, lstate);
578 break;
579 }
580 case XPT_EN_LUN: /* Enable LUN as a target */
581 ahc_handle_en_lun(ahc, sim, ccb);
582 xpt_done(ccb);
583 break;
584 case XPT_ABORT: /* Abort the specified CCB */
585 {
586 ahc_abort_ccb(ahc, sim, ccb);
587 break;
588 }
589 case XPT_SET_TRAN_SETTINGS:
590 {
591 struct ahc_devinfo devinfo;
592 struct ccb_trans_settings *cts;
593 struct ccb_trans_settings_scsi *scsi;
594 struct ccb_trans_settings_spi *spi;
595 struct ahc_initiator_tinfo *tinfo;
596 struct ahc_tmode_tstate *tstate;
597 uint16_t *discenable;
598 uint16_t *tagenable;
599 u_int update_type;
600
601 cts = &ccb->cts;
602 scsi = &cts->proto_specific.scsi;
603 spi = &cts->xport_specific.spi;
604 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim),
605 cts->ccb_h.target_id,
606 cts->ccb_h.target_lun,
607 SIM_CHANNEL(ahc, sim),
608 ROLE_UNKNOWN);
609 tinfo = ahc_fetch_transinfo(ahc, devinfo.channel,
610 devinfo.our_scsiid,
611 devinfo.target, &tstate);
612 update_type = 0;
613 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
614 update_type |= AHC_TRANS_GOAL;
615 discenable = &tstate->discenable;
616 tagenable = &tstate->tagenable;
617 tinfo->curr.protocol_version =
618 cts->protocol_version;
619 tinfo->curr.transport_version =
620 cts->transport_version;
621 tinfo->goal.protocol_version =
622 cts->protocol_version;
623 tinfo->goal.transport_version =
624 cts->transport_version;
625 } else if (cts->type == CTS_TYPE_USER_SETTINGS) {
626 update_type |= AHC_TRANS_USER;
627 discenable = &ahc->user_discenable;
628 tagenable = &ahc->user_tagenable;
629 tinfo->user.protocol_version =
630 cts->protocol_version;
631 tinfo->user.transport_version =
632 cts->transport_version;
633 } else {
634 ccb->ccb_h.status = CAM_REQ_INVALID;
635 xpt_done(ccb);
636 break;
637 }
638
639 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
640 if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0)
641 *discenable |= devinfo.target_mask;
642 else
643 *discenable &= ~devinfo.target_mask;
644 }
645
646 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
647 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0)
648 *tagenable |= devinfo.target_mask;
649 else
650 *tagenable &= ~devinfo.target_mask;
651 }
652
653 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
654 ahc_validate_width(ahc, /*tinfo limit*/NULL,
655 &spi->bus_width, ROLE_UNKNOWN);
656 ahc_set_width(ahc, &devinfo, spi->bus_width,
657 update_type, /*paused*/FALSE);
658 }
659
660 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) {
661 if (update_type == AHC_TRANS_USER)
662 spi->ppr_options = tinfo->user.ppr_options;
663 else
664 spi->ppr_options = tinfo->goal.ppr_options;
665 }
666
667 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) {
668 if (update_type == AHC_TRANS_USER)
669 spi->sync_offset = tinfo->user.offset;
670 else
671 spi->sync_offset = tinfo->goal.offset;
672 }
673
674 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) {
675 if (update_type == AHC_TRANS_USER)
676 spi->sync_period = tinfo->user.period;
677 else
678 spi->sync_period = tinfo->goal.period;
679 }
680
681 if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0)
682 || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) {
683 struct ahc_syncrate *syncrate;
684 u_int maxsync;
685
686 if ((ahc->features & AHC_ULTRA2) != 0)
687 maxsync = AHC_SYNCRATE_DT;
688 else if ((ahc->features & AHC_ULTRA) != 0)
689 maxsync = AHC_SYNCRATE_ULTRA;
690 else
691 maxsync = AHC_SYNCRATE_FAST;
692
693 if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT)
694 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ;
695
696 syncrate = ahc_find_syncrate(ahc, &spi->sync_period,
697 &spi->ppr_options,
698 maxsync);
699 ahc_validate_offset(ahc, /*tinfo limit*/NULL,
700 syncrate, &spi->sync_offset,
701 spi->bus_width, ROLE_UNKNOWN);
702
703 /* We use a period of 0 to represent async */
704 if (spi->sync_offset == 0) {
705 spi->sync_period = 0;
706 spi->ppr_options = 0;
707 }
708
709 ahc_set_syncrate(ahc, &devinfo, syncrate,
710 spi->sync_period, spi->sync_offset,
711 spi->ppr_options, update_type,
712 /*paused*/FALSE);
713 }
714 ccb->ccb_h.status = CAM_REQ_CMP;
715 xpt_done(ccb);
716 break;
717 }
718 case XPT_GET_TRAN_SETTINGS:
719 /* Get default/user set transfer settings for the target */
720 {
721
722 ahc_get_tran_settings(ahc, SIM_SCSI_ID(ahc, sim),
723 SIM_CHANNEL(ahc, sim), &ccb->cts);
724 xpt_done(ccb);
725 break;
726 }
727 case XPT_CALC_GEOMETRY:
728 {
729 int extended;
730
731 extended = SIM_IS_SCSIBUS_B(ahc, sim)
732 ? ahc->flags & AHC_EXTENDED_TRANS_B
733 : ahc->flags & AHC_EXTENDED_TRANS_A;
734 cam_calc_geometry(&ccb->ccg, extended);
735 xpt_done(ccb);
736 break;
737 }
738 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
739 {
740 int found;
741
742 found = ahc_reset_channel(ahc, SIM_CHANNEL(ahc, sim),
743 /*initiate reset*/TRUE);
744 if (bootverbose) {
745 xpt_print_path(SIM_PATH(ahc, sim));
746 kprintf("SCSI bus reset delivered. "
747 "%d SCBs aborted.\n", found);
748 }
749 ccb->ccb_h.status = CAM_REQ_CMP;
750 xpt_done(ccb);
751 break;
752 }
753 case XPT_TERM_IO: /* Terminate the I/O process */
754 /* XXX Implement */
755 ccb->ccb_h.status = CAM_REQ_INVALID;
756 xpt_done(ccb);
757 break;
758 case XPT_PATH_INQ: /* Path routing inquiry */
759 {
760 struct ccb_pathinq *cpi = &ccb->cpi;
761
762 cpi->version_num = 1; /* XXX??? */
763 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE;
764 if ((ahc->features & AHC_WIDE) != 0)
765 cpi->hba_inquiry |= PI_WIDE_16;
766 if ((ahc->features & AHC_TARGETMODE) != 0) {
767 cpi->target_sprt = PIT_PROCESSOR
768 | PIT_DISCONNECT
769 | PIT_TERM_IO;
770 } else {
771 cpi->target_sprt = 0;
772 }
773 cpi->hba_misc = 0;
774 cpi->hba_eng_cnt = 0;
775 cpi->max_target = (ahc->features & AHC_WIDE) ? 15 : 7;
776 cpi->max_lun = AHC_NUM_LUNS - 1;
777 if (SIM_IS_SCSIBUS_B(ahc, sim)) {
778 cpi->initiator_id = ahc->our_id_b;
779 if ((ahc->flags & AHC_RESET_BUS_B) == 0)
780 cpi->hba_misc |= PIM_NOBUSRESET;
781 } else {
782 cpi->initiator_id = ahc->our_id;
783 if ((ahc->flags & AHC_RESET_BUS_A) == 0)
784 cpi->hba_misc |= PIM_NOBUSRESET;
785 }
786 cpi->bus_id = cam_sim_bus(sim);
787 cpi->base_transfer_speed = 3300;
788 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
789 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN);
790 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
791 cpi->unit_number = cam_sim_unit(sim);
792 cpi->protocol = PROTO_SCSI;
793 cpi->protocol_version = SCSI_REV_2;
794 cpi->transport = XPORT_SPI;
795 cpi->transport_version = 2;
796 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_ST;
797 if ((ahc->features & AHC_DT) != 0) {
798 cpi->transport_version = 3;
799 cpi->xport_specific.spi.ppr_options =
800 SID_SPI_CLOCK_DT_ST;
801 }
802 cpi->ccb_h.status = CAM_REQ_CMP;
803 xpt_done(ccb);
804 break;
805 }
806 default:
807 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
808 xpt_done(ccb);
809 break;
810 }
811 }
812
813 static void
814 ahc_get_tran_settings(struct ahc_softc *ahc, int our_id, char channel,
815 struct ccb_trans_settings *cts)
816 {
817 struct ahc_devinfo devinfo;
818 struct ccb_trans_settings_scsi *scsi;
819 struct ccb_trans_settings_spi *spi;
820 struct ahc_initiator_tinfo *targ_info;
821 struct ahc_tmode_tstate *tstate;
822 struct ahc_transinfo *tinfo;
823
824 scsi = &cts->proto_specific.scsi;
825 spi = &cts->xport_specific.spi;
826 ahc_compile_devinfo(&devinfo, our_id,
827 cts->ccb_h.target_id,
828 cts->ccb_h.target_lun,
829 channel, ROLE_UNKNOWN);
830 targ_info = ahc_fetch_transinfo(ahc, devinfo.channel,
831 devinfo.our_scsiid,
832 devinfo.target, &tstate);
833
834 if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
835 tinfo = &targ_info->curr;
836 else
837 tinfo = &targ_info->user;
838
839 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
840 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB;
841 if (cts->type == CTS_TYPE_USER_SETTINGS) {
842 if ((ahc->user_discenable & devinfo.target_mask) != 0)
843 spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
844
845 if ((ahc->user_tagenable & devinfo.target_mask) != 0)
846 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
847 } else {
848 if ((tstate->discenable & devinfo.target_mask) != 0)
849 spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
850
851 if ((tstate->tagenable & devinfo.target_mask) != 0)
852 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
853 }
854 cts->protocol_version = tinfo->protocol_version;
855 cts->transport_version = tinfo->transport_version;
856
857 spi->sync_period = tinfo->period;
858 spi->sync_offset = tinfo->offset;
859 spi->bus_width = tinfo->width;
860 spi->ppr_options = tinfo->ppr_options;
861
862 cts->protocol = PROTO_SCSI;
863 cts->transport = XPORT_SPI;
864 spi->valid = CTS_SPI_VALID_SYNC_RATE
865 | CTS_SPI_VALID_SYNC_OFFSET
866 | CTS_SPI_VALID_BUS_WIDTH
867 | CTS_SPI_VALID_PPR_OPTIONS;
868
869 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
870 scsi->valid = CTS_SCSI_VALID_TQ;
871 spi->valid |= CTS_SPI_VALID_DISC;
872 } else {
873 scsi->valid = 0;
874 }
875
876 cts->ccb_h.status = CAM_REQ_CMP;
877 }
878
879 static void
880 ahc_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg)
881 {
882 struct ahc_softc *ahc;
883 struct cam_sim *sim;
884
885 sim = (struct cam_sim *)callback_arg;
886 ahc = (struct ahc_softc *)cam_sim_softc(sim);
887 switch (code) {
888 case AC_LOST_DEVICE:
889 {
890 struct ahc_devinfo devinfo;
891
892 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim),
893 xpt_path_target_id(path),
894 xpt_path_lun_id(path),
895 SIM_CHANNEL(ahc, sim),
896 ROLE_UNKNOWN);
897
898 /*
899 * Revert to async/narrow transfers
900 * for the next device.
901 */
902 ahc_set_width(ahc, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
903 AHC_TRANS_GOAL|AHC_TRANS_CUR, /*paused*/FALSE);
904 ahc_set_syncrate(ahc, &devinfo, /*syncrate*/NULL,
905 /*period*/0, /*offset*/0, /*ppr_options*/0,
906 AHC_TRANS_GOAL|AHC_TRANS_CUR,
907 /*paused*/FALSE);
908 break;
909 }
910 default:
911 break;
912 }
913 }
914
915 static void
916 ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments,
917 int error)
918 {
919 struct scb *scb;
920 union ccb *ccb;
921 struct ahc_softc *ahc;
922 struct ahc_initiator_tinfo *tinfo;
923 struct ahc_tmode_tstate *tstate;
924 u_int mask;
925
926 scb = (struct scb *)arg;
927 ccb = scb->io_ctx;
928 ahc = scb->ahc_softc;
929
930 if (error != 0) {
931 if (error == EFBIG)
932 aic_set_transaction_status(scb, CAM_REQ_TOO_BIG);
933 else
934 aic_set_transaction_status(scb, CAM_REQ_CMP_ERR);
935 if (nsegments != 0)
936 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap);
937 ahc_free_scb(ahc, scb);
938 xpt_done(ccb);
939 return;
940 }
941 if (nsegments != 0) {
942 struct ahc_dma_seg *sg;
943 bus_dma_segment_t *end_seg;
944 bus_dmasync_op_t op;
945
946 end_seg = dm_segs + nsegments;
947
948 /* Copy the segments into our SG list */
949 sg = scb->sg_list;
950 while (dm_segs < end_seg) {
951 uint32_t len;
952
953 sg->addr = aic_htole32(dm_segs->ds_addr);
954 len = dm_segs->ds_len
955 | ((dm_segs->ds_addr >> 8) & 0x7F000000);
956 sg->len = aic_htole32(len);
957 sg++;
958 dm_segs++;
959 }
960
961 /*
962 * Note where to find the SG entries in bus space.
963 * We also set the full residual flag which the
964 * sequencer will clear as soon as a data transfer
965 * occurs.
966 */
967 scb->hscb->sgptr = aic_htole32(scb->sg_list_phys|SG_FULL_RESID);
968
969 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
970 op = BUS_DMASYNC_PREREAD;
971 else
972 op = BUS_DMASYNC_PREWRITE;
973
974 bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op);
975
976 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
977 struct target_data *tdata;
978
979 tdata = &scb->hscb->shared_data.tdata;
980 tdata->target_phases |= DPHASE_PENDING;
981 /*
982 * CAM data direction is relative to the initiator.
983 */
984 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
985 tdata->data_phase = P_DATAOUT;
986 else
987 tdata->data_phase = P_DATAIN;
988
989 /*
990 * If the transfer is of an odd length and in the
991 * "in" direction (scsi->HostBus), then it may
992 * trigger a bug in the 'WideODD' feature of
993 * non-Ultra2 chips. Force the total data-length
994 * to be even by adding an extra, 1 byte, SG,
995 * element. We do this even if we are not currently
996 * negotiated wide as negotiation could occur before
997 * this command is executed.
998 */
999 if ((ahc->bugs & AHC_TMODE_WIDEODD_BUG) != 0
1000 && (ccb->csio.dxfer_len & 0x1) != 0
1001 && (ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1002
1003 nsegments++;
1004 if (nsegments > AHC_NSEG) {
1005
1006 aic_set_transaction_status(scb,
1007 CAM_REQ_TOO_BIG);
1008 bus_dmamap_unload(ahc->buffer_dmat,
1009 scb->dmamap);
1010 ahc_free_scb(ahc, scb);
1011 xpt_done(ccb);
1012 return;
1013 }
1014 sg->addr = aic_htole32(ahc->dma_bug_buf);
1015 sg->len = aic_htole32(1);
1016 sg++;
1017 }
1018 }
1019 sg--;
1020 sg->len |= aic_htole32(AHC_DMA_LAST_SEG);
1021
1022 /* Copy the first SG into the "current" data pointer area */
1023 scb->hscb->dataptr = scb->sg_list->addr;
1024 scb->hscb->datacnt = scb->sg_list->len;
1025 } else {
1026 scb->hscb->sgptr = aic_htole32(SG_LIST_NULL);
1027 scb->hscb->dataptr = 0;
1028 scb->hscb->datacnt = 0;
1029 }
1030
1031 scb->sg_count = nsegments;
1032
1033 /*
1034 * Last time we need to check if this SCB needs to
1035 * be aborted.
1036 */
1037 if (aic_get_transaction_status(scb) != CAM_REQ_INPROG) {
1038 if (nsegments != 0)
1039 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap);
1040 ahc_free_scb(ahc, scb);
1041 xpt_done(ccb);
1042 return;
1043 }
1044
1045 tinfo = ahc_fetch_transinfo(ahc, SCSIID_CHANNEL(ahc, scb->hscb->scsiid),
1046 SCSIID_OUR_ID(scb->hscb->scsiid),
1047 SCSIID_TARGET(ahc, scb->hscb->scsiid),
1048 &tstate);
1049
1050 mask = SCB_GET_TARGET_MASK(ahc, scb);
1051 scb->hscb->scsirate = tinfo->scsirate;
1052 scb->hscb->scsioffset = tinfo->curr.offset;
1053 if ((tstate->ultraenb & mask) != 0)
1054 scb->hscb->control |= ULTRAENB;
1055
1056 if ((tstate->discenable & mask) != 0
1057 && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0)
1058 scb->hscb->control |= DISCENB;
1059
1060 if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0
1061 && (tinfo->goal.width != 0
1062 || tinfo->goal.offset != 0
1063 || tinfo->goal.ppr_options != 0)) {
1064 scb->flags |= SCB_NEGOTIATE;
1065 scb->hscb->control |= MK_MESSAGE;
1066 } else if ((tstate->auto_negotiate & mask) != 0) {
1067 scb->flags |= SCB_AUTO_NEGOTIATE;
1068 scb->hscb->control |= MK_MESSAGE;
1069 }
1070
1071 LIST_INSERT_HEAD(&ahc->pending_scbs, scb, pending_links);
1072
1073 ccb->ccb_h.status |= CAM_SIM_QUEUED;
1074
1075 /*
1076 * We only allow one untagged transaction
1077 * per target in the initiator role unless
1078 * we are storing a full busy target *lun*
1079 * table in SCB space.
1080 */
1081 if ((scb->hscb->control & (TARGET_SCB|TAG_ENB)) == 0
1082 && (ahc->flags & AHC_SCB_BTT) == 0) {
1083 struct scb_tailq *untagged_q;
1084 int target_offset;
1085
1086 target_offset = SCB_GET_TARGET_OFFSET(ahc, scb);
1087 untagged_q = &(ahc->untagged_queues[target_offset]);
1088 TAILQ_INSERT_TAIL(untagged_q, scb, links.tqe);
1089 scb->flags |= SCB_UNTAGGEDQ;
1090 if (TAILQ_FIRST(untagged_q) != scb) {
1091 return;
1092 }
1093 }
1094 scb->flags |= SCB_ACTIVE;
1095
1096 /*
1097 * Timers are disabled while recovery is in progress.
1098 */
1099 aic_scb_timer_start(scb);
1100
1101 if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) {
1102 /* Define a mapping from our tag to the SCB. */
1103 ahc->scb_data->scbindex[scb->hscb->tag] = scb;
1104 ahc_pause(ahc);
1105 if ((ahc->flags & AHC_PAGESCBS) == 0)
1106 ahc_outb(ahc, SCBPTR, scb->hscb->tag);
1107 ahc_outb(ahc, TARG_IMMEDIATE_SCB, scb->hscb->tag);
1108 ahc_unpause(ahc);
1109 } else {
1110 ahc_queue_scb(ahc, scb);
1111 }
1112 }
1113
1114 static void
1115 ahc_poll(struct cam_sim *sim)
1116 {
1117 struct ahc_softc *ahc;
1118
1119 ahc = (struct ahc_softc *)cam_sim_softc(sim);
1120 ahc_intr(ahc);
1121 }
1122
1123 static void
1124 ahc_setup_data(struct ahc_softc *ahc, struct cam_sim *sim,
1125 struct ccb_scsiio *csio, struct scb *scb)
1126 {
1127 struct hardware_scb *hscb;
1128 struct ccb_hdr *ccb_h;
1129
1130 hscb = scb->hscb;
1131 ccb_h = &csio->ccb_h;
1132
1133 csio->resid = 0;
1134 csio->sense_resid = 0;
1135 if (ccb_h->func_code == XPT_SCSI_IO) {
1136 hscb->cdb_len = csio->cdb_len;
1137 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) {
1138
1139 if (hscb->cdb_len > sizeof(hscb->cdb32)
1140 || (ccb_h->flags & CAM_CDB_PHYS) != 0) {
1141 aic_set_transaction_status(scb,
1142 CAM_REQ_INVALID);
1143 ahc_free_scb(ahc, scb);
1144 xpt_done((union ccb *)csio);
1145 return;
1146 }
1147 if (hscb->cdb_len > 12) {
1148 memcpy(hscb->cdb32,
1149 csio->cdb_io.cdb_ptr,
1150 hscb->cdb_len);
1151 scb->flags |= SCB_CDB32_PTR;
1152 } else {
1153 memcpy(hscb->shared_data.cdb,
1154 csio->cdb_io.cdb_ptr,
1155 hscb->cdb_len);
1156 }
1157 } else {
1158 if (hscb->cdb_len > 12) {
1159 memcpy(hscb->cdb32, csio->cdb_io.cdb_bytes,
1160 hscb->cdb_len);
1161 scb->flags |= SCB_CDB32_PTR;
1162 } else {
1163 memcpy(hscb->shared_data.cdb,
1164 csio->cdb_io.cdb_bytes,
1165 hscb->cdb_len);
1166 }
1167 }
1168 }
1169
1170 /* Only use S/G if there is a transfer */
1171 if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
1172 if ((ccb_h->flags & CAM_SCATTER_VALID) == 0) {
1173 /* We've been given a pointer to a single buffer */
1174 if ((ccb_h->flags & CAM_DATA_PHYS) == 0) {
1175 int error;
1176
1177 crit_enter();
1178 error = bus_dmamap_load(ahc->buffer_dmat,
1179 scb->dmamap,
1180 csio->data_ptr,
1181 csio->dxfer_len,
1182 ahc_execute_scb,
1183 scb, /*flags*/0);
1184 if (error == EINPROGRESS) {
1185 /*
1186 * So as to maintain ordering,
1187 * freeze the controller queue
1188 * until our mapping is
1189 * returned.
1190 */
1191 xpt_freeze_simq(sim,
1192 /*count*/1);
1193 scb->io_ctx->ccb_h.status |=
1194 CAM_RELEASE_SIMQ;
1195 }
1196 crit_exit();
1197 } else {
1198 struct bus_dma_segment seg;
1199
1200 /* Pointer to physical buffer */
1201 if (csio->dxfer_len > AHC_MAXTRANSFER_SIZE)
1202 panic("ahc_setup_data - Transfer size "
1203 "larger than can device max");
1204
1205 seg.ds_addr =
1206 (bus_addr_t)(vm_offset_t)csio->data_ptr;
1207 seg.ds_len = csio->dxfer_len;
1208 ahc_execute_scb(scb, &seg, 1, 0);
1209 }
1210 } else {
1211 struct bus_dma_segment *segs;
1212
1213 if ((ccb_h->flags & CAM_DATA_PHYS) != 0)
1214 panic("ahc_setup_data - Physical segment "
1215 "pointers unsupported");
1216
1217 if ((ccb_h->flags & CAM_SG_LIST_PHYS) == 0)
1218 panic("ahc_setup_data - Virtual segment "
1219 "addresses unsupported");
1220
1221 /* Just use the segments provided */
1222 segs = (struct bus_dma_segment *)csio->data_ptr;
1223 ahc_execute_scb(scb, segs, csio->sglist_cnt, 0);
1224 }
1225 } else {
1226 ahc_execute_scb(scb, NULL, 0, 0);
1227 }
1228 }
1229
1230 static void
1231 ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim, union ccb *ccb)
1232 {
1233 union ccb *abort_ccb;
1234
1235 abort_ccb = ccb->cab.abort_ccb;
1236 switch (abort_ccb->ccb_h.func_code) {
1237 case XPT_ACCEPT_TARGET_IO:
1238 case XPT_IMMED_NOTIFY:
1239 case XPT_CONT_TARGET_IO:
1240 {
1241 struct ahc_tmode_tstate *tstate;
1242 struct ahc_tmode_lstate *lstate;
1243 struct ccb_hdr_slist *list;
1244 cam_status status;
1245
1246 status = ahc_find_tmode_devs(ahc, sim, abort_ccb, &tstate,
1247 &lstate, TRUE);
1248
1249 if (status != CAM_REQ_CMP) {
1250 ccb->ccb_h.status = status;
1251 break;
1252 }
1253
1254 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO)
1255 list = &lstate->accept_tios;
1256 else if (abort_ccb->ccb_h.func_code == XPT_IMMED_NOTIFY)
1257 list = &lstate->immed_notifies;
1258 else
1259 list = NULL;
1260
1261 if (list != NULL) {
1262 struct ccb_hdr *curelm;
1263 int found;
1264
1265 curelm = SLIST_FIRST(list);
1266 found = 0;
1267 if (curelm == &abort_ccb->ccb_h) {
1268 found = 1;
1269 SLIST_REMOVE_HEAD(list, sim_links.sle);
1270 } else {
1271 while(curelm != NULL) {
1272 struct ccb_hdr *nextelm;
1273
1274 nextelm =
1275 SLIST_NEXT(curelm, sim_links.sle);
1276
1277 if (nextelm == &abort_ccb->ccb_h) {
1278 found = 1;
1279 SLIST_NEXT(curelm,
1280 sim_links.sle) =
1281 SLIST_NEXT(nextelm,
1282 sim_links.sle);
1283 break;
1284 }
1285 curelm = nextelm;
1286 }
1287 }
1288
1289 if (found) {
1290 abort_ccb->ccb_h.status = CAM_REQ_ABORTED;
1291 xpt_done(abort_ccb);
1292 ccb->ccb_h.status = CAM_REQ_CMP;
1293 } else {
1294 xpt_print_path(abort_ccb->ccb_h.path);
1295 kprintf("Not found\n");
1296 ccb->ccb_h.status = CAM_PATH_INVALID;
1297 }
1298 break;
1299 }
1300 /* FALLTHROUGH */
1301 }
1302 case XPT_SCSI_IO:
1303 /* XXX Fully implement the hard ones */
1304 ccb->ccb_h.status = CAM_UA_ABORT;
1305 break;
1306 default:
1307 ccb->ccb_h.status = CAM_REQ_INVALID;
1308 break;
1309 }
1310 xpt_done(ccb);
1311 }
1312
1313 void
1314 ahc_send_async(struct ahc_softc *ahc, char channel, u_int target,
1315 u_int lun, ac_code code, void *opt_arg)
1316 {
1317 struct ccb_trans_settings cts;
1318 struct cam_path *path;
1319 void *arg;
1320 int error;
1321
1322 arg = NULL;
1323 error = ahc_create_path(ahc, channel, target, lun, &path);
1324
1325 if (error != CAM_REQ_CMP)
1326 return;
1327
1328 switch (code) {
1329 case AC_TRANSFER_NEG:
1330 {
1331 struct ccb_trans_settings_scsi *scsi;
1332
1333 cts.type = CTS_TYPE_CURRENT_SETTINGS;
1334 scsi = &cts.proto_specific.scsi;
1335 cts.ccb_h.path = path;
1336 cts.ccb_h.target_id = target;
1337 cts.ccb_h.target_lun = lun;
1338 ahc_get_tran_settings(ahc, channel == 'A' ? ahc->our_id
1339 : ahc->our_id_b,
1340 channel, &cts);
1341 arg = &cts;
1342 scsi->valid &= ~CTS_SCSI_VALID_TQ;
1343 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
1344 if (opt_arg == NULL)
1345 break;
1346 if (*((ahc_queue_alg *)opt_arg) == AHC_QUEUE_TAGGED)
1347 scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB;
1348 scsi->valid |= CTS_SCSI_VALID_TQ;
1349 break;
1350 }
1351 case AC_SENT_BDR:
1352 case AC_BUS_RESET:
1353 break;
1354 default:
1355 panic("ahc_send_async: Unexpected async event");
1356 }
1357 xpt_async(code, path, arg);
1358 xpt_free_path(path);
1359 }
1360
1361 void
1362 ahc_platform_set_tags(struct ahc_softc *ahc,
1363 struct ahc_devinfo *devinfo, int enable)
1364 {
1365 }
1366
1367 int
1368 ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg)
1369 {
1370 ahc->platform_data = kmalloc(sizeof(struct ahc_platform_data), M_DEVBUF,
1371 M_INTWAIT | M_ZERO);
1372 return (0);
1373 }
1374
1375 void
1376 ahc_platform_free(struct ahc_softc *ahc)
1377 {
1378 struct ahc_platform_data *pdata;
1379
1380 pdata = ahc->platform_data;
1381 if (pdata != NULL) {
1382 if (pdata->regs != NULL)
1383 bus_release_resource(ahc->dev_softc,
1384 pdata->regs_res_type,
1385 pdata->regs_res_id,
1386 pdata->regs);
1387
1388 if (pdata->irq != NULL)
1389 bus_release_resource(ahc->dev_softc,
1390 pdata->irq_res_type,
1391 0, pdata->irq);
1392
1393 if (pdata->sim_b != NULL) {
1394 xpt_async(AC_LOST_DEVICE, pdata->path_b, NULL);
1395 xpt_free_path(pdata->path_b);
1396 xpt_bus_deregister(cam_sim_path(pdata->sim_b));
1397 cam_sim_free(pdata->sim_b);
1398 }
1399 if (pdata->sim != NULL) {
1400 xpt_async(AC_LOST_DEVICE, pdata->path, NULL);
1401 xpt_free_path(pdata->path);
1402 xpt_bus_deregister(cam_sim_path(pdata->sim));
1403 cam_sim_free(pdata->sim);
1404 }
1405 if (pdata->eh != NULL)
1406 EVENTHANDLER_DEREGISTER(shutdown_post_sync, pdata->eh);
1407 kfree(ahc->platform_data, M_DEVBUF);
1408 }
1409 }
1410
1411 int
1412 ahc_softc_comp(struct ahc_softc *lahc, struct ahc_softc *rahc)
1413 {
1414 /* We don't sort softcs under FreeBSD so report equal always */
1415 return (0);
1416 }
1417
1418 int
1419 ahc_detach(device_t dev)
1420 {
1421 struct ahc_softc *ahc;
1422
1423 device_printf(dev, "detaching device\n");
1424 ahc = device_get_softc(dev);
1425 ahc_lock(ahc);
1426 TAILQ_REMOVE(&ahc_tailq, ahc, links);
1427 ahc_intr_enable(ahc, FALSE);
1428 bus_teardown_intr(dev, ahc->platform_data->irq, ahc->platform_data->ih);
1429 ahc_unlock(ahc);
1430 ahc_free(ahc);
1431 return (0);
1432 }
1433
1434 #if 0
1435 static void
1436 ahc_dump_targcmd(struct target_cmd *cmd)
1437 {
1438 uint8_t *byte;
1439 uint8_t *last_byte;
1440 int i;
1441
1442 byte = &cmd->initiator_channel;
1443 /* Debugging info for received commands */
1444 last_byte = &cmd[1].initiator_channel;
1445
1446 i = 0;
1447 while (byte < last_byte) {
1448 if (i == 0)
1449 kprintf("\t");
1450 kprintf("%#x", *byte++);
1451 i++;
1452 if (i == 8) {
1453 kprintf("\n");
1454 i = 0;
1455 } else {
1456 kprintf(", ");
1457 }
1458 }
1459 }
1460 #endif
1461
1462 static int
1463 ahc_modevent(module_t mod, int type, void *data)
1464 {
1465 /* XXX Deal with busy status on unload. */
1466 /* XXX Deal with unknown events */
1467 return 0;
1468 }
1469
1470 static moduledata_t ahc_mod = {
1471 "ahc",
1472 ahc_modevent,
1473 NULL
1474 };
1475
1476 DECLARE_MODULE(ahc, ahc_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
1477 MODULE_DEPEND(ahc, cam, 1, 1, 1);
1478 MODULE_VERSION(ahc, 1);
DragonFly BSD