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/6.2/sys/dev/aic7xxx/aic7xxx_osm.c 151303 2005-10-14 02:03:27Z delphij $");
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 UNUSED
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, ahc_platform_intr, ahc,
111 &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 long s;
156 int count;
157
158 count = 0;
159 sim = NULL;
160 sim2 = 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, &s);
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 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, 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), 1,
229 AHC_MAX_QUEUE, devq);
230
231 if (sim2 == NULL) {
232 printf("ahc_attach: Unable to attach second "
233 "bus due to resource shortage");
234 goto fail;
235 }
236
237 if (xpt_bus_register(sim2, bus_id2) != CAM_SUCCESS) {
238 printf("ahc_attach: Unable to attach second "
239 "bus due to resource shortage");
240 /*
241 * We do not want to destroy the device queue
242 * because the first bus is using it.
243 */
244 cam_sim_free(sim2, /*free_devq*/FALSE);
245 goto fail;
246 }
247
248 if (xpt_create_path(&path2, /*periph*/NULL,
249 cam_sim_path(sim2),
250 CAM_TARGET_WILDCARD,
251 CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
252 xpt_bus_deregister(cam_sim_path(sim2));
253 cam_sim_free(sim2, /*free_devq*/FALSE);
254 sim2 = NULL;
255 goto fail;
256 }
257 xpt_setup_ccb(&csa.ccb_h, path2, /*priority*/5);
258 csa.ccb_h.func_code = XPT_SASYNC_CB;
259 csa.event_enable = AC_LOST_DEVICE;
260 csa.callback = ahc_async;
261 csa.callback_arg = sim2;
262 xpt_action((union ccb *)&csa);
263 count++;
264 }
265
266 fail:
267 if ((ahc->features & AHC_TWIN) != 0
268 && (ahc->flags & AHC_PRIMARY_CHANNEL) != 0) {
269 ahc->platform_data->sim_b = sim;
270 ahc->platform_data->path_b = path;
271 ahc->platform_data->sim = sim2;
272 ahc->platform_data->path = path2;
273 } else {
274 ahc->platform_data->sim = sim;
275 ahc->platform_data->path = path;
276 ahc->platform_data->sim_b = sim2;
277 ahc->platform_data->path_b = path2;
278 }
279
280 if (count != 0) {
281 /* We have to wait until after any system dumps... */
282 ahc->platform_data->eh =
283 EVENTHANDLER_REGISTER(shutdown_final, ahc_shutdown,
284 ahc, SHUTDOWN_PRI_DEFAULT);
285 ahc_intr_enable(ahc, TRUE);
286 }
287
288 ahc_unlock(ahc, &s);
289 return (count);
290 }
291
292 /*
293 * Catch an interrupt from the adapter
294 */
295 void
296 ahc_platform_intr(void *arg)
297 {
298 struct ahc_softc *ahc;
299
300 ahc = (struct ahc_softc *)arg;
301 ahc_intr(ahc);
302 }
303
304 /*
305 * We have an scb which has been processed by the
306 * adaptor, now we look to see how the operation
307 * went.
308 */
309 void
310 ahc_done(struct ahc_softc *ahc, struct scb *scb)
311 {
312 union ccb *ccb;
313
314 CAM_DEBUG(scb->io_ctx->ccb_h.path, CAM_DEBUG_TRACE,
315 ("ahc_done - scb %d\n", scb->hscb->tag));
316
317 ccb = scb->io_ctx;
318 LIST_REMOVE(scb, pending_links);
319 if ((scb->flags & SCB_TIMEDOUT) != 0)
320 LIST_REMOVE(scb, timedout_links);
321 if ((scb->flags & SCB_UNTAGGEDQ) != 0) {
322 struct scb_tailq *untagged_q;
323 int target_offset;
324
325 target_offset = SCB_GET_TARGET_OFFSET(ahc, scb);
326 untagged_q = &ahc->untagged_queues[target_offset];
327 TAILQ_REMOVE(untagged_q, scb, links.tqe);
328 scb->flags &= ~SCB_UNTAGGEDQ;
329 ahc_run_untagged_queue(ahc, untagged_q);
330 }
331
332 untimeout(ahc_platform_timeout, (caddr_t)scb, ccb->ccb_h.timeout_ch);
333
334 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
335 bus_dmasync_op_t op;
336
337 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
338 op = BUS_DMASYNC_POSTREAD;
339 else
340 op = BUS_DMASYNC_POSTWRITE;
341 bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op);
342 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap);
343 }
344
345 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
346 struct cam_path *ccb_path;
347
348 /*
349 * If we have finally disconnected, clean up our
350 * pending device state.
351 * XXX - There may be error states that cause where
352 * we will remain connected.
353 */
354 ccb_path = ccb->ccb_h.path;
355 if (ahc->pending_device != NULL
356 && xpt_path_comp(ahc->pending_device->path, ccb_path) == 0) {
357
358 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
359 ahc->pending_device = NULL;
360 } else {
361 if (bootverbose) {
362 xpt_print_path(ccb->ccb_h.path);
363 printf("Still connected\n");
364 }
365 aic_freeze_ccb(ccb);
366 }
367 }
368
369 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG)
370 ccb->ccb_h.status |= CAM_REQ_CMP;
371 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
372 ahc_free_scb(ahc, scb);
373 xpt_done(ccb);
374 return;
375 }
376
377 /*
378 * If the recovery SCB completes, we have to be
379 * out of our timeout.
380 */
381 if ((scb->flags & SCB_RECOVERY_SCB) != 0) {
382 struct scb *list_scb;
383
384 ahc->scb_data->recovery_scbs--;
385
386 if (aic_get_transaction_status(scb) == CAM_BDR_SENT
387 || aic_get_transaction_status(scb) == CAM_REQ_ABORTED)
388 aic_set_transaction_status(scb, CAM_CMD_TIMEOUT);
389
390 if (ahc->scb_data->recovery_scbs == 0) {
391 /*
392 * All recovery actions have completed successfully,
393 * so reinstate the timeouts for all other pending
394 * commands.
395 */
396 LIST_FOREACH(list_scb, &ahc->pending_scbs,
397 pending_links) {
398
399 aic_scb_timer_reset(list_scb,
400 aic_get_timeout(scb));
401 }
402
403 ahc_print_path(ahc, scb);
404 printf("no longer in timeout, status = %x\n",
405 ccb->ccb_h.status);
406 }
407 }
408
409 /* Don't clobber any existing error state */
410 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) {
411 ccb->ccb_h.status |= CAM_REQ_CMP;
412 } else if ((scb->flags & SCB_SENSE) != 0) {
413 /*
414 * We performed autosense retrieval.
415 *
416 * Zero any sense not transferred by the
417 * device. The SCSI spec mandates that any
418 * untransfered data should be assumed to be
419 * zero. Complete the 'bounce' of sense information
420 * through buffers accessible via bus-space by
421 * copying it into the clients csio.
422 */
423 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data));
424 memcpy(&ccb->csio.sense_data,
425 ahc_get_sense_buf(ahc, scb),
426 (aic_le32toh(scb->sg_list->len) & AHC_SG_LEN_MASK)
427 - ccb->csio.sense_resid);
428 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID;
429 }
430 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
431 ahc_free_scb(ahc, scb);
432 xpt_done(ccb);
433 }
434
435 static void
436 ahc_action(struct cam_sim *sim, union ccb *ccb)
437 {
438 struct ahc_softc *ahc;
439 struct ahc_tmode_lstate *lstate;
440 u_int target_id;
441 u_int our_id;
442 long s;
443
444 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahc_action\n"));
445
446 ahc = (struct ahc_softc *)cam_sim_softc(sim);
447
448 target_id = ccb->ccb_h.target_id;
449 our_id = SIM_SCSI_ID(ahc, sim);
450
451 switch (ccb->ccb_h.func_code) {
452 /* Common cases first */
453 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */
454 case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/
455 {
456 struct ahc_tmode_tstate *tstate;
457 cam_status status;
458
459 status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate,
460 &lstate, TRUE);
461
462 if (status != CAM_REQ_CMP) {
463 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
464 /* Response from the black hole device */
465 tstate = NULL;
466 lstate = ahc->black_hole;
467 } else {
468 ccb->ccb_h.status = status;
469 xpt_done(ccb);
470 break;
471 }
472 }
473 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
474
475 ahc_lock(ahc, &s);
476 SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h,
477 sim_links.sle);
478 ccb->ccb_h.status = CAM_REQ_INPROG;
479 if ((ahc->flags & AHC_TQINFIFO_BLOCKED) != 0)
480 ahc_run_tqinfifo(ahc, /*paused*/FALSE);
481 ahc_unlock(ahc, &s);
482 break;
483 }
484
485 /*
486 * The target_id represents the target we attempt to
487 * select. In target mode, this is the initiator of
488 * the original command.
489 */
490 our_id = target_id;
491 target_id = ccb->csio.init_id;
492 /* FALLTHROUGH */
493 }
494 case XPT_SCSI_IO: /* Execute the requested I/O operation */
495 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */
496 {
497 struct scb *scb;
498 struct hardware_scb *hscb;
499
500 if ((ahc->flags & AHC_INITIATORROLE) == 0
501 && (ccb->ccb_h.func_code == XPT_SCSI_IO
502 || ccb->ccb_h.func_code == XPT_RESET_DEV)) {
503 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
504 xpt_done(ccb);
505 return;
506 }
507
508 /*
509 * get an scb to use.
510 */
511 ahc_lock(ahc, &s);
512 if ((scb = ahc_get_scb(ahc)) == NULL) {
513
514 xpt_freeze_simq(sim, /*count*/1);
515 ahc->flags |= AHC_RESOURCE_SHORTAGE;
516 ahc_unlock(ahc, &s);
517 ccb->ccb_h.status = CAM_REQUEUE_REQ;
518 xpt_done(ccb);
519 return;
520 }
521 ahc_unlock(ahc, &s);
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 #ifdef AHC_NEW_TRAN_SETTINGS
604 struct ahc_devinfo devinfo;
605 struct ccb_trans_settings *cts;
606 struct ccb_trans_settings_scsi *scsi;
607 struct ccb_trans_settings_spi *spi;
608 struct ahc_initiator_tinfo *tinfo;
609 struct ahc_tmode_tstate *tstate;
610 uint16_t *discenable;
611 uint16_t *tagenable;
612 u_int update_type;
613
614 cts = &ccb->cts;
615 scsi = &cts->proto_specific.scsi;
616 spi = &cts->xport_specific.spi;
617 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim),
618 cts->ccb_h.target_id,
619 cts->ccb_h.target_lun,
620 SIM_CHANNEL(ahc, sim),
621 ROLE_UNKNOWN);
622 tinfo = ahc_fetch_transinfo(ahc, devinfo.channel,
623 devinfo.our_scsiid,
624 devinfo.target, &tstate);
625 update_type = 0;
626 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
627 update_type |= AHC_TRANS_GOAL;
628 discenable = &tstate->discenable;
629 tagenable = &tstate->tagenable;
630 tinfo->curr.protocol_version =
631 cts->protocol_version;
632 tinfo->curr.transport_version =
633 cts->transport_version;
634 tinfo->goal.protocol_version =
635 cts->protocol_version;
636 tinfo->goal.transport_version =
637 cts->transport_version;
638 } else if (cts->type == CTS_TYPE_USER_SETTINGS) {
639 update_type |= AHC_TRANS_USER;
640 discenable = &ahc->user_discenable;
641 tagenable = &ahc->user_tagenable;
642 tinfo->user.protocol_version =
643 cts->protocol_version;
644 tinfo->user.transport_version =
645 cts->transport_version;
646 } else {
647 ccb->ccb_h.status = CAM_REQ_INVALID;
648 xpt_done(ccb);
649 break;
650 }
651
652 ahc_lock(ahc, &s);
653
654 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
655 if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0)
656 *discenable |= devinfo.target_mask;
657 else
658 *discenable &= ~devinfo.target_mask;
659 }
660
661 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
662 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0)
663 *tagenable |= devinfo.target_mask;
664 else
665 *tagenable &= ~devinfo.target_mask;
666 }
667
668 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
669 ahc_validate_width(ahc, /*tinfo limit*/NULL,
670 &spi->bus_width, ROLE_UNKNOWN);
671 ahc_set_width(ahc, &devinfo, spi->bus_width,
672 update_type, /*paused*/FALSE);
673 }
674
675 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) {
676 if (update_type == AHC_TRANS_USER)
677 spi->ppr_options = tinfo->user.ppr_options;
678 else
679 spi->ppr_options = tinfo->goal.ppr_options;
680 }
681
682 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) {
683 if (update_type == AHC_TRANS_USER)
684 spi->sync_offset = tinfo->user.offset;
685 else
686 spi->sync_offset = tinfo->goal.offset;
687 }
688
689 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) {
690 if (update_type == AHC_TRANS_USER)
691 spi->sync_period = tinfo->user.period;
692 else
693 spi->sync_period = tinfo->goal.period;
694 }
695
696 if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0)
697 || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) {
698 struct ahc_syncrate *syncrate;
699 u_int maxsync;
700
701 if ((ahc->features & AHC_ULTRA2) != 0)
702 maxsync = AHC_SYNCRATE_DT;
703 else if ((ahc->features & AHC_ULTRA) != 0)
704 maxsync = AHC_SYNCRATE_ULTRA;
705 else
706 maxsync = AHC_SYNCRATE_FAST;
707
708 if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT)
709 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ;
710
711 syncrate = ahc_find_syncrate(ahc, &spi->sync_period,
712 &spi->ppr_options,
713 maxsync);
714 ahc_validate_offset(ahc, /*tinfo limit*/NULL,
715 syncrate, &spi->sync_offset,
716 spi->bus_width, ROLE_UNKNOWN);
717
718 /* We use a period of 0 to represent async */
719 if (spi->sync_offset == 0) {
720 spi->sync_period = 0;
721 spi->ppr_options = 0;
722 }
723
724 ahc_set_syncrate(ahc, &devinfo, syncrate,
725 spi->sync_period, spi->sync_offset,
726 spi->ppr_options, update_type,
727 /*paused*/FALSE);
728 }
729 ahc_unlock(ahc, &s);
730 ccb->ccb_h.status = CAM_REQ_CMP;
731 xpt_done(ccb);
732 #else
733 struct ahc_devinfo devinfo;
734 struct ccb_trans_settings *cts;
735 struct ahc_initiator_tinfo *tinfo;
736 struct ahc_tmode_tstate *tstate;
737 uint16_t *discenable;
738 uint16_t *tagenable;
739 u_int update_type;
740 long s;
741
742 cts = &ccb->cts;
743 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim),
744 cts->ccb_h.target_id,
745 cts->ccb_h.target_lun,
746 SIM_CHANNEL(ahc, sim),
747 ROLE_UNKNOWN);
748 tinfo = ahc_fetch_transinfo(ahc, devinfo.channel,
749 devinfo.our_scsiid,
750 devinfo.target, &tstate);
751 update_type = 0;
752 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0) {
753 update_type |= AHC_TRANS_GOAL;
754 discenable = &tstate->discenable;
755 tagenable = &tstate->tagenable;
756 } else if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) {
757 update_type |= AHC_TRANS_USER;
758 discenable = &ahc->user_discenable;
759 tagenable = &ahc->user_tagenable;
760 } else {
761 ccb->ccb_h.status = CAM_REQ_INVALID;
762 xpt_done(ccb);
763 break;
764 }
765
766 ahc_lock(ahc, &s);
767
768 if ((cts->valid & CCB_TRANS_DISC_VALID) != 0) {
769 if ((cts->flags & CCB_TRANS_DISC_ENB) != 0)
770 *discenable |= devinfo.target_mask;
771 else
772 *discenable &= ~devinfo.target_mask;
773 }
774
775 if ((cts->valid & CCB_TRANS_TQ_VALID) != 0) {
776 if ((cts->flags & CCB_TRANS_TAG_ENB) != 0)
777 *tagenable |= devinfo.target_mask;
778 else
779 *tagenable &= ~devinfo.target_mask;
780 }
781
782 if ((cts->valid & CCB_TRANS_BUS_WIDTH_VALID) != 0) {
783 ahc_validate_width(ahc, /*tinfo limit*/NULL,
784 &cts->bus_width, ROLE_UNKNOWN);
785 ahc_set_width(ahc, &devinfo, cts->bus_width,
786 update_type, /*paused*/FALSE);
787 }
788
789 if ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) == 0) {
790 if (update_type == AHC_TRANS_USER)
791 cts->sync_offset = tinfo->user.offset;
792 else
793 cts->sync_offset = tinfo->goal.offset;
794 }
795
796 if ((cts->valid & CCB_TRANS_SYNC_RATE_VALID) == 0) {
797 if (update_type == AHC_TRANS_USER)
798 cts->sync_period = tinfo->user.period;
799 else
800 cts->sync_period = tinfo->goal.period;
801 }
802
803 if (((cts->valid & CCB_TRANS_SYNC_RATE_VALID) != 0)
804 || ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) != 0)) {
805 struct ahc_syncrate *syncrate;
806 u_int ppr_options;
807 u_int maxsync;
808
809 if ((ahc->features & AHC_ULTRA2) != 0)
810 maxsync = AHC_SYNCRATE_DT;
811 else if ((ahc->features & AHC_ULTRA) != 0)
812 maxsync = AHC_SYNCRATE_ULTRA;
813 else
814 maxsync = AHC_SYNCRATE_FAST;
815
816 ppr_options = 0;
817 if (cts->sync_period <= 9
818 && cts->bus_width == MSG_EXT_WDTR_BUS_16_BIT)
819 ppr_options = MSG_EXT_PPR_DT_REQ;
820
821 syncrate = ahc_find_syncrate(ahc, &cts->sync_period,
822 &ppr_options,
823 maxsync);
824 ahc_validate_offset(ahc, /*tinfo limit*/NULL,
825 syncrate, &cts->sync_offset,
826 MSG_EXT_WDTR_BUS_8_BIT,
827 ROLE_UNKNOWN);
828
829 /* We use a period of 0 to represent async */
830 if (cts->sync_offset == 0) {
831 cts->sync_period = 0;
832 ppr_options = 0;
833 }
834
835 if (ppr_options == MSG_EXT_PPR_DT_REQ
836 && tinfo->user.transport_version >= 3) {
837 tinfo->goal.transport_version =
838 tinfo->user.transport_version;
839 tinfo->curr.transport_version =
840 tinfo->user.transport_version;
841 }
842
843 ahc_set_syncrate(ahc, &devinfo, syncrate,
844 cts->sync_period, cts->sync_offset,
845 ppr_options, update_type,
846 /*paused*/FALSE);
847 }
848 ahc_unlock(ahc, &s);
849 ccb->ccb_h.status = CAM_REQ_CMP;
850 xpt_done(ccb);
851 #endif
852 break;
853 }
854 case XPT_GET_TRAN_SETTINGS:
855 /* Get default/user set transfer settings for the target */
856 {
857
858 ahc_lock(ahc, &s);
859 ahc_get_tran_settings(ahc, SIM_SCSI_ID(ahc, sim),
860 SIM_CHANNEL(ahc, sim), &ccb->cts);
861 ahc_unlock(ahc, &s);
862 xpt_done(ccb);
863 break;
864 }
865 case XPT_CALC_GEOMETRY:
866 {
867 int extended;
868
869 extended = SIM_IS_SCSIBUS_B(ahc, sim)
870 ? ahc->flags & AHC_EXTENDED_TRANS_B
871 : ahc->flags & AHC_EXTENDED_TRANS_A;
872 aic_calc_geometry(&ccb->ccg, extended);
873 xpt_done(ccb);
874 break;
875 }
876 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
877 {
878 int found;
879
880 ahc_lock(ahc, &s);
881 found = ahc_reset_channel(ahc, SIM_CHANNEL(ahc, sim),
882 /*initiate reset*/TRUE);
883 ahc_unlock(ahc, &s);
884 if (bootverbose) {
885 xpt_print_path(SIM_PATH(ahc, sim));
886 printf("SCSI bus reset delivered. "
887 "%d SCBs aborted.\n", found);
888 }
889 ccb->ccb_h.status = CAM_REQ_CMP;
890 xpt_done(ccb);
891 break;
892 }
893 case XPT_TERM_IO: /* Terminate the I/O process */
894 /* XXX Implement */
895 ccb->ccb_h.status = CAM_REQ_INVALID;
896 xpt_done(ccb);
897 break;
898 case XPT_PATH_INQ: /* Path routing inquiry */
899 {
900 struct ccb_pathinq *cpi = &ccb->cpi;
901
902 cpi->version_num = 1; /* XXX??? */
903 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE;
904 if ((ahc->features & AHC_WIDE) != 0)
905 cpi->hba_inquiry |= PI_WIDE_16;
906 if ((ahc->features & AHC_TARGETMODE) != 0) {
907 cpi->target_sprt = PIT_PROCESSOR
908 | PIT_DISCONNECT
909 | PIT_TERM_IO;
910 } else {
911 cpi->target_sprt = 0;
912 }
913 cpi->hba_misc = 0;
914 cpi->hba_eng_cnt = 0;
915 cpi->max_target = (ahc->features & AHC_WIDE) ? 15 : 7;
916 cpi->max_lun = AHC_NUM_LUNS - 1;
917 if (SIM_IS_SCSIBUS_B(ahc, sim)) {
918 cpi->initiator_id = ahc->our_id_b;
919 if ((ahc->flags & AHC_RESET_BUS_B) == 0)
920 cpi->hba_misc |= PIM_NOBUSRESET;
921 } else {
922 cpi->initiator_id = ahc->our_id;
923 if ((ahc->flags & AHC_RESET_BUS_A) == 0)
924 cpi->hba_misc |= PIM_NOBUSRESET;
925 }
926 cpi->bus_id = cam_sim_bus(sim);
927 cpi->base_transfer_speed = 3300;
928 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
929 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN);
930 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
931 cpi->unit_number = cam_sim_unit(sim);
932 #ifdef AHC_NEW_TRAN_SETTINGS
933 cpi->protocol = PROTO_SCSI;
934 cpi->protocol_version = SCSI_REV_2;
935 cpi->transport = XPORT_SPI;
936 cpi->transport_version = 2;
937 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_ST;
938 if ((ahc->features & AHC_DT) != 0) {
939 cpi->transport_version = 3;
940 cpi->xport_specific.spi.ppr_options =
941 SID_SPI_CLOCK_DT_ST;
942 }
943 #endif
944 cpi->ccb_h.status = CAM_REQ_CMP;
945 xpt_done(ccb);
946 break;
947 }
948 default:
949 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
950 xpt_done(ccb);
951 break;
952 }
953 }
954
955 static void
956 ahc_get_tran_settings(struct ahc_softc *ahc, int our_id, char channel,
957 struct ccb_trans_settings *cts)
958 {
959 #ifdef AHC_NEW_TRAN_SETTINGS
960 struct ahc_devinfo devinfo;
961 struct ccb_trans_settings_scsi *scsi;
962 struct ccb_trans_settings_spi *spi;
963 struct ahc_initiator_tinfo *targ_info;
964 struct ahc_tmode_tstate *tstate;
965 struct ahc_transinfo *tinfo;
966
967 scsi = &cts->proto_specific.scsi;
968 spi = &cts->xport_specific.spi;
969 ahc_compile_devinfo(&devinfo, our_id,
970 cts->ccb_h.target_id,
971 cts->ccb_h.target_lun,
972 channel, ROLE_UNKNOWN);
973 targ_info = ahc_fetch_transinfo(ahc, devinfo.channel,
974 devinfo.our_scsiid,
975 devinfo.target, &tstate);
976
977 if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
978 tinfo = &targ_info->curr;
979 else
980 tinfo = &targ_info->user;
981
982 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
983 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB;
984 if (cts->type == CTS_TYPE_USER_SETTINGS) {
985 if ((ahc->user_discenable & devinfo.target_mask) != 0)
986 spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
987
988 if ((ahc->user_tagenable & devinfo.target_mask) != 0)
989 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
990 } else {
991 if ((tstate->discenable & devinfo.target_mask) != 0)
992 spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
993
994 if ((tstate->tagenable & devinfo.target_mask) != 0)
995 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
996 }
997 cts->protocol_version = tinfo->protocol_version;
998 cts->transport_version = tinfo->transport_version;
999
1000 spi->sync_period = tinfo->period;
1001 spi->sync_offset = tinfo->offset;
1002 spi->bus_width = tinfo->width;
1003 spi->ppr_options = tinfo->ppr_options;
1004
1005 cts->protocol = PROTO_SCSI;
1006 cts->transport = XPORT_SPI;
1007 spi->valid = CTS_SPI_VALID_SYNC_RATE
1008 | CTS_SPI_VALID_SYNC_OFFSET
1009 | CTS_SPI_VALID_BUS_WIDTH
1010 | CTS_SPI_VALID_PPR_OPTIONS;
1011
1012 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
1013 scsi->valid = CTS_SCSI_VALID_TQ;
1014 spi->valid |= CTS_SPI_VALID_DISC;
1015 } else {
1016 scsi->valid = 0;
1017 }
1018
1019 cts->ccb_h.status = CAM_REQ_CMP;
1020 #else
1021 struct ahc_devinfo devinfo;
1022 struct ahc_initiator_tinfo *targ_info;
1023 struct ahc_tmode_tstate *tstate;
1024 struct ahc_transinfo *tinfo;
1025
1026 ahc_compile_devinfo(&devinfo, our_id,
1027 cts->ccb_h.target_id,
1028 cts->ccb_h.target_lun,
1029 channel, ROLE_UNKNOWN);
1030 targ_info = ahc_fetch_transinfo(ahc, devinfo.channel,
1031 devinfo.our_scsiid,
1032 devinfo.target, &tstate);
1033
1034 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0)
1035 tinfo = &targ_info->curr;
1036 else
1037 tinfo = &targ_info->user;
1038
1039 cts->flags &= ~(CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB);
1040 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) == 0) {
1041 if ((ahc->user_discenable & devinfo.target_mask) != 0)
1042 cts->flags |= CCB_TRANS_DISC_ENB;
1043
1044 if ((ahc->user_tagenable & devinfo.target_mask) != 0)
1045 cts->flags |= CCB_TRANS_TAG_ENB;
1046 } else {
1047 if ((tstate->discenable & devinfo.target_mask) != 0)
1048 cts->flags |= CCB_TRANS_DISC_ENB;
1049
1050 if ((tstate->tagenable & devinfo.target_mask) != 0)
1051 cts->flags |= CCB_TRANS_TAG_ENB;
1052 }
1053 cts->sync_period = tinfo->period;
1054 cts->sync_offset = tinfo->offset;
1055 cts->bus_width = tinfo->width;
1056
1057 cts->valid = CCB_TRANS_SYNC_RATE_VALID
1058 | CCB_TRANS_SYNC_OFFSET_VALID
1059 | CCB_TRANS_BUS_WIDTH_VALID;
1060
1061 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD)
1062 cts->valid |= CCB_TRANS_DISC_VALID|CCB_TRANS_TQ_VALID;
1063
1064 cts->ccb_h.status = CAM_REQ_CMP;
1065 #endif
1066 }
1067
1068 static void
1069 ahc_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg)
1070 {
1071 struct ahc_softc *ahc;
1072 struct cam_sim *sim;
1073
1074 sim = (struct cam_sim *)callback_arg;
1075 ahc = (struct ahc_softc *)cam_sim_softc(sim);
1076 switch (code) {
1077 case AC_LOST_DEVICE:
1078 {
1079 struct ahc_devinfo devinfo;
1080 long s;
1081
1082 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim),
1083 xpt_path_target_id(path),
1084 xpt_path_lun_id(path),
1085 SIM_CHANNEL(ahc, sim),
1086 ROLE_UNKNOWN);
1087
1088 /*
1089 * Revert to async/narrow transfers
1090 * for the next device.
1091 */
1092 ahc_lock(ahc, &s);
1093 ahc_set_width(ahc, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
1094 AHC_TRANS_GOAL|AHC_TRANS_CUR, /*paused*/FALSE);
1095 ahc_set_syncrate(ahc, &devinfo, /*syncrate*/NULL,
1096 /*period*/0, /*offset*/0, /*ppr_options*/0,
1097 AHC_TRANS_GOAL|AHC_TRANS_CUR,
1098 /*paused*/FALSE);
1099 ahc_unlock(ahc, &s);
1100 break;
1101 }
1102 default:
1103 break;
1104 }
1105 }
1106
1107 static void
1108 ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments,
1109 int error)
1110 {
1111 struct scb *scb;
1112 union ccb *ccb;
1113 struct ahc_softc *ahc;
1114 struct ahc_initiator_tinfo *tinfo;
1115 struct ahc_tmode_tstate *tstate;
1116 u_int mask;
1117 long s;
1118
1119 scb = (struct scb *)arg;
1120 ccb = scb->io_ctx;
1121 ahc = scb->ahc_softc;
1122
1123 if (error != 0) {
1124 if (error == EFBIG)
1125 aic_set_transaction_status(scb, CAM_REQ_TOO_BIG);
1126 else
1127 aic_set_transaction_status(scb, CAM_REQ_CMP_ERR);
1128 if (nsegments != 0)
1129 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap);
1130 ahc_lock(ahc, &s);
1131 ahc_free_scb(ahc, scb);
1132 ahc_unlock(ahc, &s);
1133 xpt_done(ccb);
1134 return;
1135 }
1136 if (nsegments != 0) {
1137 struct ahc_dma_seg *sg;
1138 bus_dma_segment_t *end_seg;
1139 bus_dmasync_op_t op;
1140
1141 end_seg = dm_segs + nsegments;
1142
1143 /* Copy the segments into our SG list */
1144 sg = scb->sg_list;
1145 while (dm_segs < end_seg) {
1146 uint32_t len;
1147
1148 sg->addr = aic_htole32(dm_segs->ds_addr);
1149 len = dm_segs->ds_len
1150 | ((dm_segs->ds_addr >> 8) & 0x7F000000);
1151 sg->len = aic_htole32(len);
1152 sg++;
1153 dm_segs++;
1154 }
1155
1156 /*
1157 * Note where to find the SG entries in bus space.
1158 * We also set the full residual flag which the
1159 * sequencer will clear as soon as a data transfer
1160 * occurs.
1161 */
1162 scb->hscb->sgptr = aic_htole32(scb->sg_list_phys|SG_FULL_RESID);
1163
1164 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
1165 op = BUS_DMASYNC_PREREAD;
1166 else
1167 op = BUS_DMASYNC_PREWRITE;
1168
1169 bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op);
1170
1171 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
1172 struct target_data *tdata;
1173
1174 tdata = &scb->hscb->shared_data.tdata;
1175 tdata->target_phases |= DPHASE_PENDING;
1176 /*
1177 * CAM data direction is relative to the initiator.
1178 */
1179 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
1180 tdata->data_phase = P_DATAOUT;
1181 else
1182 tdata->data_phase = P_DATAIN;
1183
1184 /*
1185 * If the transfer is of an odd length and in the
1186 * "in" direction (scsi->HostBus), then it may
1187 * trigger a bug in the 'WideODD' feature of
1188 * non-Ultra2 chips. Force the total data-length
1189 * to be even by adding an extra, 1 byte, SG,
1190 * element. We do this even if we are not currently
1191 * negotiated wide as negotiation could occur before
1192 * this command is executed.
1193 */
1194 if ((ahc->bugs & AHC_TMODE_WIDEODD_BUG) != 0
1195 && (ccb->csio.dxfer_len & 0x1) != 0
1196 && (ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1197
1198 nsegments++;
1199 if (nsegments > AHC_NSEG) {
1200
1201 aic_set_transaction_status(scb,
1202 CAM_REQ_TOO_BIG);
1203 bus_dmamap_unload(ahc->buffer_dmat,
1204 scb->dmamap);
1205 ahc_lock(ahc, &s);
1206 ahc_free_scb(ahc, scb);
1207 ahc_unlock(ahc, &s);
1208 xpt_done(ccb);
1209 return;
1210 }
1211 sg->addr = aic_htole32(ahc->dma_bug_buf);
1212 sg->len = aic_htole32(1);
1213 sg++;
1214 }
1215 }
1216 sg--;
1217 sg->len |= aic_htole32(AHC_DMA_LAST_SEG);
1218
1219 /* Copy the first SG into the "current" data pointer area */
1220 scb->hscb->dataptr = scb->sg_list->addr;
1221 scb->hscb->datacnt = scb->sg_list->len;
1222 } else {
1223 scb->hscb->sgptr = aic_htole32(SG_LIST_NULL);
1224 scb->hscb->dataptr = 0;
1225 scb->hscb->datacnt = 0;
1226 }
1227
1228 scb->sg_count = nsegments;
1229
1230 ahc_lock(ahc, &s);
1231
1232 /*
1233 * Last time we need to check if this SCB needs to
1234 * be aborted.
1235 */
1236 if (aic_get_transaction_status(scb) != CAM_REQ_INPROG) {
1237 if (nsegments != 0)
1238 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap);
1239 ahc_free_scb(ahc, scb);
1240 ahc_unlock(ahc, &s);
1241 xpt_done(ccb);
1242 return;
1243 }
1244
1245 tinfo = ahc_fetch_transinfo(ahc, SCSIID_CHANNEL(ahc, scb->hscb->scsiid),
1246 SCSIID_OUR_ID(scb->hscb->scsiid),
1247 SCSIID_TARGET(ahc, scb->hscb->scsiid),
1248 &tstate);
1249
1250 mask = SCB_GET_TARGET_MASK(ahc, scb);
1251 scb->hscb->scsirate = tinfo->scsirate;
1252 scb->hscb->scsioffset = tinfo->curr.offset;
1253 if ((tstate->ultraenb & mask) != 0)
1254 scb->hscb->control |= ULTRAENB;
1255
1256 if ((tstate->discenable & mask) != 0
1257 && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0)
1258 scb->hscb->control |= DISCENB;
1259
1260 if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0
1261 && (tinfo->goal.width != 0
1262 || tinfo->goal.offset != 0
1263 || tinfo->goal.ppr_options != 0)) {
1264 scb->flags |= SCB_NEGOTIATE;
1265 scb->hscb->control |= MK_MESSAGE;
1266 } else if ((tstate->auto_negotiate & mask) != 0) {
1267 scb->flags |= SCB_AUTO_NEGOTIATE;
1268 scb->hscb->control |= MK_MESSAGE;
1269 }
1270
1271 LIST_INSERT_HEAD(&ahc->pending_scbs, scb, pending_links);
1272
1273 ccb->ccb_h.status |= CAM_SIM_QUEUED;
1274
1275 /*
1276 * We only allow one untagged transaction
1277 * per target in the initiator role unless
1278 * we are storing a full busy target *lun*
1279 * table in SCB space.
1280 */
1281 if ((scb->hscb->control & (TARGET_SCB|TAG_ENB)) == 0
1282 && (ahc->flags & AHC_SCB_BTT) == 0) {
1283 struct scb_tailq *untagged_q;
1284 int target_offset;
1285
1286 target_offset = SCB_GET_TARGET_OFFSET(ahc, scb);
1287 untagged_q = &(ahc->untagged_queues[target_offset]);
1288 TAILQ_INSERT_TAIL(untagged_q, scb, links.tqe);
1289 scb->flags |= SCB_UNTAGGEDQ;
1290 if (TAILQ_FIRST(untagged_q) != scb) {
1291 ahc_unlock(ahc, &s);
1292 return;
1293 }
1294 }
1295 scb->flags |= SCB_ACTIVE;
1296
1297 /*
1298 * Timers are disabled while recovery is in progress.
1299 */
1300 aic_scb_timer_start(scb);
1301
1302 if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) {
1303 /* Define a mapping from our tag to the SCB. */
1304 ahc->scb_data->scbindex[scb->hscb->tag] = scb;
1305 ahc_pause(ahc);
1306 if ((ahc->flags & AHC_PAGESCBS) == 0)
1307 ahc_outb(ahc, SCBPTR, scb->hscb->tag);
1308 ahc_outb(ahc, TARG_IMMEDIATE_SCB, scb->hscb->tag);
1309 ahc_unpause(ahc);
1310 } else {
1311 ahc_queue_scb(ahc, scb);
1312 }
1313
1314 ahc_unlock(ahc, &s);
1315 }
1316
1317 static void
1318 ahc_poll(struct cam_sim *sim)
1319 {
1320 struct ahc_softc *ahc;
1321
1322 ahc = (struct ahc_softc *)cam_sim_softc(sim);
1323 ahc_intr(ahc);
1324 }
1325
1326 static void
1327 ahc_setup_data(struct ahc_softc *ahc, struct cam_sim *sim,
1328 struct ccb_scsiio *csio, struct scb *scb)
1329 {
1330 struct hardware_scb *hscb;
1331 struct ccb_hdr *ccb_h;
1332
1333 hscb = scb->hscb;
1334 ccb_h = &csio->ccb_h;
1335
1336 csio->resid = 0;
1337 csio->sense_resid = 0;
1338 if (ccb_h->func_code == XPT_SCSI_IO) {
1339 hscb->cdb_len = csio->cdb_len;
1340 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) {
1341
1342 if (hscb->cdb_len > sizeof(hscb->cdb32)
1343 || (ccb_h->flags & CAM_CDB_PHYS) != 0) {
1344 u_long s;
1345
1346 aic_set_transaction_status(scb,
1347 CAM_REQ_INVALID);
1348 ahc_lock(ahc, &s);
1349 ahc_free_scb(ahc, scb);
1350 ahc_unlock(ahc, &s);
1351 xpt_done((union ccb *)csio);
1352 return;
1353 }
1354 if (hscb->cdb_len > 12) {
1355 memcpy(hscb->cdb32,
1356 csio->cdb_io.cdb_ptr,
1357 hscb->cdb_len);
1358 scb->flags |= SCB_CDB32_PTR;
1359 } else {
1360 memcpy(hscb->shared_data.cdb,
1361 csio->cdb_io.cdb_ptr,
1362 hscb->cdb_len);
1363 }
1364 } else {
1365 if (hscb->cdb_len > 12) {
1366 memcpy(hscb->cdb32, csio->cdb_io.cdb_bytes,
1367 hscb->cdb_len);
1368 scb->flags |= SCB_CDB32_PTR;
1369 } else {
1370 memcpy(hscb->shared_data.cdb,
1371 csio->cdb_io.cdb_bytes,
1372 hscb->cdb_len);
1373 }
1374 }
1375 }
1376
1377 /* Only use S/G if there is a transfer */
1378 if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
1379 if ((ccb_h->flags & CAM_SCATTER_VALID) == 0) {
1380 /* We've been given a pointer to a single buffer */
1381 if ((ccb_h->flags & CAM_DATA_PHYS) == 0) {
1382 int s;
1383 int error;
1384
1385 s = splsoftvm();
1386 error = bus_dmamap_load(ahc->buffer_dmat,
1387 scb->dmamap,
1388 csio->data_ptr,
1389 csio->dxfer_len,
1390 ahc_execute_scb,
1391 scb, /*flags*/0);
1392 if (error == EINPROGRESS) {
1393 /*
1394 * So as to maintain ordering,
1395 * freeze the controller queue
1396 * until our mapping is
1397 * returned.
1398 */
1399 xpt_freeze_simq(sim,
1400 /*count*/1);
1401 scb->io_ctx->ccb_h.status |=
1402 CAM_RELEASE_SIMQ;
1403 }
1404 splx(s);
1405 } else {
1406 struct bus_dma_segment seg;
1407
1408 /* Pointer to physical buffer */
1409 if (csio->dxfer_len > AHC_MAXTRANSFER_SIZE)
1410 panic("ahc_setup_data - Transfer size "
1411 "larger than can device max");
1412
1413 seg.ds_addr =
1414 (bus_addr_t)(vm_offset_t)csio->data_ptr;
1415 seg.ds_len = csio->dxfer_len;
1416 ahc_execute_scb(scb, &seg, 1, 0);
1417 }
1418 } else {
1419 struct bus_dma_segment *segs;
1420
1421 if ((ccb_h->flags & CAM_DATA_PHYS) != 0)
1422 panic("ahc_setup_data - Physical segment "
1423 "pointers unsupported");
1424
1425 if ((ccb_h->flags & CAM_SG_LIST_PHYS) == 0)
1426 panic("ahc_setup_data - Virtual segment "
1427 "addresses unsupported");
1428
1429 /* Just use the segments provided */
1430 segs = (struct bus_dma_segment *)csio->data_ptr;
1431 ahc_execute_scb(scb, segs, csio->sglist_cnt, 0);
1432 }
1433 } else {
1434 ahc_execute_scb(scb, NULL, 0, 0);
1435 }
1436 }
1437
1438 static void
1439 ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim, union ccb *ccb)
1440 {
1441 union ccb *abort_ccb;
1442
1443 abort_ccb = ccb->cab.abort_ccb;
1444 switch (abort_ccb->ccb_h.func_code) {
1445 case XPT_ACCEPT_TARGET_IO:
1446 case XPT_IMMED_NOTIFY:
1447 case XPT_CONT_TARGET_IO:
1448 {
1449 struct ahc_tmode_tstate *tstate;
1450 struct ahc_tmode_lstate *lstate;
1451 struct ccb_hdr_slist *list;
1452 cam_status status;
1453
1454 status = ahc_find_tmode_devs(ahc, sim, abort_ccb, &tstate,
1455 &lstate, TRUE);
1456
1457 if (status != CAM_REQ_CMP) {
1458 ccb->ccb_h.status = status;
1459 break;
1460 }
1461
1462 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO)
1463 list = &lstate->accept_tios;
1464 else if (abort_ccb->ccb_h.func_code == XPT_IMMED_NOTIFY)
1465 list = &lstate->immed_notifies;
1466 else
1467 list = NULL;
1468
1469 if (list != NULL) {
1470 struct ccb_hdr *curelm;
1471 int found;
1472
1473 curelm = SLIST_FIRST(list);
1474 found = 0;
1475 if (curelm == &abort_ccb->ccb_h) {
1476 found = 1;
1477 SLIST_REMOVE_HEAD(list, sim_links.sle);
1478 } else {
1479 while(curelm != NULL) {
1480 struct ccb_hdr *nextelm;
1481
1482 nextelm =
1483 SLIST_NEXT(curelm, sim_links.sle);
1484
1485 if (nextelm == &abort_ccb->ccb_h) {
1486 found = 1;
1487 SLIST_NEXT(curelm,
1488 sim_links.sle) =
1489 SLIST_NEXT(nextelm,
1490 sim_links.sle);
1491 break;
1492 }
1493 curelm = nextelm;
1494 }
1495 }
1496
1497 if (found) {
1498 abort_ccb->ccb_h.status = CAM_REQ_ABORTED;
1499 xpt_done(abort_ccb);
1500 ccb->ccb_h.status = CAM_REQ_CMP;
1501 } else {
1502 xpt_print_path(abort_ccb->ccb_h.path);
1503 printf("Not found\n");
1504 ccb->ccb_h.status = CAM_PATH_INVALID;
1505 }
1506 break;
1507 }
1508 /* FALLTHROUGH */
1509 }
1510 case XPT_SCSI_IO:
1511 /* XXX Fully implement the hard ones */
1512 ccb->ccb_h.status = CAM_UA_ABORT;
1513 break;
1514 default:
1515 ccb->ccb_h.status = CAM_REQ_INVALID;
1516 break;
1517 }
1518 xpt_done(ccb);
1519 }
1520
1521 void
1522 ahc_send_async(struct ahc_softc *ahc, char channel, u_int target,
1523 u_int lun, ac_code code, void *opt_arg)
1524 {
1525 struct ccb_trans_settings cts;
1526 struct cam_path *path;
1527 void *arg;
1528 int error;
1529
1530 arg = NULL;
1531 error = ahc_create_path(ahc, channel, target, lun, &path);
1532
1533 if (error != CAM_REQ_CMP)
1534 return;
1535
1536 switch (code) {
1537 case AC_TRANSFER_NEG:
1538 {
1539 #ifdef AHC_NEW_TRAN_SETTINGS
1540 struct ccb_trans_settings_scsi *scsi;
1541
1542 cts.type = CTS_TYPE_CURRENT_SETTINGS;
1543 scsi = &cts.proto_specific.scsi;
1544 #else
1545 cts.flags = CCB_TRANS_CURRENT_SETTINGS;
1546 #endif
1547 cts.ccb_h.path = path;
1548 cts.ccb_h.target_id = target;
1549 cts.ccb_h.target_lun = lun;
1550 ahc_get_tran_settings(ahc, channel == 'A' ? ahc->our_id
1551 : ahc->our_id_b,
1552 channel, &cts);
1553 arg = &cts;
1554 #ifdef AHC_NEW_TRAN_SETTINGS
1555 scsi->valid &= ~CTS_SCSI_VALID_TQ;
1556 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
1557 #else
1558 cts.valid &= ~CCB_TRANS_TQ_VALID;
1559 cts.flags &= ~CCB_TRANS_TAG_ENB;
1560 #endif
1561 if (opt_arg == NULL)
1562 break;
1563 if (*((ahc_queue_alg *)opt_arg) == AHC_QUEUE_TAGGED)
1564 #ifdef AHC_NEW_TRAN_SETTINGS
1565 scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB;
1566 scsi->valid |= CTS_SCSI_VALID_TQ;
1567 #else
1568 cts.flags |= CCB_TRANS_TAG_ENB;
1569 cts.valid |= CCB_TRANS_TQ_VALID;
1570 #endif
1571 break;
1572 }
1573 case AC_SENT_BDR:
1574 case AC_BUS_RESET:
1575 break;
1576 default:
1577 panic("ahc_send_async: Unexpected async event");
1578 }
1579 xpt_async(code, path, arg);
1580 xpt_free_path(path);
1581 }
1582
1583 void
1584 ahc_platform_set_tags(struct ahc_softc *ahc,
1585 struct ahc_devinfo *devinfo, int enable)
1586 {
1587 }
1588
1589 int
1590 ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg)
1591 {
1592 ahc->platform_data = malloc(sizeof(struct ahc_platform_data), M_DEVBUF,
1593 M_NOWAIT | M_ZERO);
1594 if (ahc->platform_data == NULL)
1595 return (ENOMEM);
1596 return (0);
1597 }
1598
1599 void
1600 ahc_platform_free(struct ahc_softc *ahc)
1601 {
1602 struct ahc_platform_data *pdata;
1603
1604 pdata = ahc->platform_data;
1605 if (pdata != NULL) {
1606 if (pdata->regs != NULL)
1607 bus_release_resource(ahc->dev_softc,
1608 pdata->regs_res_type,
1609 pdata->regs_res_id,
1610 pdata->regs);
1611
1612 if (pdata->irq != NULL)
1613 bus_release_resource(ahc->dev_softc,
1614 pdata->irq_res_type,
1615 0, pdata->irq);
1616
1617 if (pdata->sim_b != NULL) {
1618 xpt_async(AC_LOST_DEVICE, pdata->path_b, NULL);
1619 xpt_free_path(pdata->path_b);
1620 xpt_bus_deregister(cam_sim_path(pdata->sim_b));
1621 cam_sim_free(pdata->sim_b, /*free_devq*/TRUE);
1622 }
1623 if (pdata->sim != NULL) {
1624 xpt_async(AC_LOST_DEVICE, pdata->path, NULL);
1625 xpt_free_path(pdata->path);
1626 xpt_bus_deregister(cam_sim_path(pdata->sim));
1627 cam_sim_free(pdata->sim, /*free_devq*/TRUE);
1628 }
1629 if (pdata->eh != NULL)
1630 EVENTHANDLER_DEREGISTER(shutdown_final, pdata->eh);
1631 free(ahc->platform_data, M_DEVBUF);
1632 }
1633 }
1634
1635 int
1636 ahc_softc_comp(struct ahc_softc *lahc, struct ahc_softc *rahc)
1637 {
1638 /* We don't sort softcs under FreeBSD so report equal always */
1639 return (0);
1640 }
1641
1642 int
1643 ahc_detach(device_t dev)
1644 {
1645 struct ahc_softc *ahc;
1646 u_long l;
1647 u_long s;
1648
1649 ahc_list_lock(&l);
1650 device_printf(dev, "detaching device\n");
1651 ahc = device_get_softc(dev);
1652 ahc = ahc_find_softc(ahc);
1653 if (ahc == NULL) {
1654 device_printf(dev, "aic7xxx already detached\n");
1655 ahc_list_unlock(&l);
1656 return (ENOENT);
1657 }
1658 TAILQ_REMOVE(&ahc_tailq, ahc, links);
1659 ahc_list_unlock(&l);
1660 ahc_lock(ahc, &s);
1661 ahc_intr_enable(ahc, FALSE);
1662 bus_teardown_intr(dev, ahc->platform_data->irq, ahc->platform_data->ih);
1663 ahc_unlock(ahc, &s);
1664 ahc_free(ahc);
1665 return (0);
1666 }
1667
1668 #if UNUSED
1669 static void
1670 ahc_dump_targcmd(struct target_cmd *cmd)
1671 {
1672 uint8_t *byte;
1673 uint8_t *last_byte;
1674 int i;
1675
1676 byte = &cmd->initiator_channel;
1677 /* Debugging info for received commands */
1678 last_byte = &cmd[1].initiator_channel;
1679
1680 i = 0;
1681 while (byte < last_byte) {
1682 if (i == 0)
1683 printf("\t");
1684 printf("%#x", *byte++);
1685 i++;
1686 if (i == 8) {
1687 printf("\n");
1688 i = 0;
1689 } else {
1690 printf(", ");
1691 }
1692 }
1693 }
1694 #endif
1695
1696 static int
1697 ahc_modevent(module_t mod, int type, void *data)
1698 {
1699 /* XXX Deal with busy status on unload. */
1700 /* XXX Deal with unknown events */
1701 return 0;
1702 }
1703
1704 static moduledata_t ahc_mod = {
1705 "ahc",
1706 ahc_modevent,
1707 NULL
1708 };
1709
1710 DECLARE_MODULE(ahc, ahc_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
1711 MODULE_DEPEND(ahc, cam, 1, 1, 1);
1712 MODULE_VERSION(ahc, 1);
Cache object: 80c3c31784478a78fa889f8c36e14c56
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