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