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/5.3/sys/dev/aic7xxx/aic7xxx_osm.c 133911 2004-08-17 00:14:31Z gibbs $");
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(scb, aic_get_timeout(scb));
400 }
401
402 ahc_print_path(ahc, scb);
403 printf("no longer in timeout, status = %x\n",
404 ccb->ccb_h.status);
405 }
406 }
407
408 /* Don't clobber any existing error state */
409 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) {
410 ccb->ccb_h.status |= CAM_REQ_CMP;
411 } else if ((scb->flags & SCB_SENSE) != 0) {
412 /*
413 * We performed autosense retrieval.
414 *
415 * Zero any sense not transferred by the
416 * device. The SCSI spec mandates that any
417 * untransfered data should be assumed to be
418 * zero. Complete the 'bounce' of sense information
419 * through buffers accessible via bus-space by
420 * copying it into the clients csio.
421 */
422 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data));
423 memcpy(&ccb->csio.sense_data,
424 ahc_get_sense_buf(ahc, scb),
425 (aic_le32toh(scb->sg_list->len) & AHC_SG_LEN_MASK)
426 - ccb->csio.sense_resid);
427 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID;
428 }
429 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
430 ahc_free_scb(ahc, scb);
431 xpt_done(ccb);
432 }
433
434 static void
435 ahc_action(struct cam_sim *sim, union ccb *ccb)
436 {
437 struct ahc_softc *ahc;
438 struct ahc_tmode_lstate *lstate;
439 u_int target_id;
440 u_int our_id;
441 long s;
442
443 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahc_action\n"));
444
445 ahc = (struct ahc_softc *)cam_sim_softc(sim);
446
447 target_id = ccb->ccb_h.target_id;
448 our_id = SIM_SCSI_ID(ahc, sim);
449
450 switch (ccb->ccb_h.func_code) {
451 /* Common cases first */
452 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */
453 case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/
454 {
455 struct ahc_tmode_tstate *tstate;
456 cam_status status;
457
458 status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate,
459 &lstate, TRUE);
460
461 if (status != CAM_REQ_CMP) {
462 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
463 /* Response from the black hole device */
464 tstate = NULL;
465 lstate = ahc->black_hole;
466 } else {
467 ccb->ccb_h.status = status;
468 xpt_done(ccb);
469 break;
470 }
471 }
472 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
473
474 ahc_lock(ahc, &s);
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 ahc_unlock(ahc, &s);
481 break;
482 }
483
484 /*
485 * The target_id represents the target we attempt to
486 * select. In target mode, this is the initiator of
487 * the original command.
488 */
489 our_id = target_id;
490 target_id = ccb->csio.init_id;
491 /* FALLTHROUGH */
492 }
493 case XPT_SCSI_IO: /* Execute the requested I/O operation */
494 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */
495 {
496 struct scb *scb;
497 struct hardware_scb *hscb;
498
499 if ((ahc->flags & AHC_INITIATORROLE) == 0
500 && (ccb->ccb_h.func_code == XPT_SCSI_IO
501 || ccb->ccb_h.func_code == XPT_RESET_DEV)) {
502 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
503 xpt_done(ccb);
504 return;
505 }
506
507 /*
508 * get an scb to use.
509 */
510 ahc_lock(ahc, &s);
511 if ((scb = ahc_get_scb(ahc)) == NULL) {
512
513 xpt_freeze_simq(sim, /*count*/1);
514 ahc->flags |= AHC_RESOURCE_SHORTAGE;
515 ahc_unlock(ahc, &s);
516 ccb->ccb_h.status = CAM_REQUEUE_REQ;
517 xpt_done(ccb);
518 return;
519 }
520 ahc_unlock(ahc, &s);
521
522 hscb = scb->hscb;
523
524 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE,
525 ("start scb(%p)\n", scb));
526 scb->io_ctx = ccb;
527 /*
528 * So we can find the SCB when an abort is requested
529 */
530 ccb->ccb_h.ccb_scb_ptr = scb;
531
532 /*
533 * Put all the arguments for the xfer in the scb
534 */
535 hscb->control = 0;
536 hscb->scsiid = BUILD_SCSIID(ahc, sim, target_id, our_id);
537 hscb->lun = ccb->ccb_h.target_lun;
538 if (ccb->ccb_h.func_code == XPT_RESET_DEV) {
539 hscb->cdb_len = 0;
540 scb->flags |= SCB_DEVICE_RESET;
541 hscb->control |= MK_MESSAGE;
542 ahc_execute_scb(scb, NULL, 0, 0);
543 } else {
544 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
545 struct target_data *tdata;
546
547 tdata = &hscb->shared_data.tdata;
548 if (ahc->pending_device == lstate)
549 scb->flags |= SCB_TARGET_IMMEDIATE;
550 hscb->control |= TARGET_SCB;
551 scb->flags |= SCB_TARGET_SCB;
552 tdata->target_phases = 0;
553 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
554 tdata->target_phases |= SPHASE_PENDING;
555 tdata->scsi_status =
556 ccb->csio.scsi_status;
557 }
558 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT)
559 tdata->target_phases |= NO_DISCONNECT;
560
561 tdata->initiator_tag = ccb->csio.tag_id;
562 }
563 if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID)
564 hscb->control |= ccb->csio.tag_action;
565
566 ahc_setup_data(ahc, sim, &ccb->csio, scb);
567 }
568 break;
569 }
570 case XPT_NOTIFY_ACK:
571 case XPT_IMMED_NOTIFY:
572 {
573 struct ahc_tmode_tstate *tstate;
574 struct ahc_tmode_lstate *lstate;
575 cam_status status;
576
577 status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate,
578 &lstate, TRUE);
579
580 if (status != CAM_REQ_CMP) {
581 ccb->ccb_h.status = status;
582 xpt_done(ccb);
583 break;
584 }
585 SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h,
586 sim_links.sle);
587 ccb->ccb_h.status = CAM_REQ_INPROG;
588 ahc_send_lstate_events(ahc, lstate);
589 break;
590 }
591 case XPT_EN_LUN: /* Enable LUN as a target */
592 ahc_handle_en_lun(ahc, sim, ccb);
593 xpt_done(ccb);
594 break;
595 case XPT_ABORT: /* Abort the specified CCB */
596 {
597 ahc_abort_ccb(ahc, sim, ccb);
598 break;
599 }
600 case XPT_SET_TRAN_SETTINGS:
601 {
602 #ifdef AHC_NEW_TRAN_SETTINGS
603 struct ahc_devinfo devinfo;
604 struct ccb_trans_settings *cts;
605 struct ccb_trans_settings_scsi *scsi;
606 struct ccb_trans_settings_spi *spi;
607 struct ahc_initiator_tinfo *tinfo;
608 struct ahc_tmode_tstate *tstate;
609 uint16_t *discenable;
610 uint16_t *tagenable;
611 u_int update_type;
612
613 cts = &ccb->cts;
614 scsi = &cts->proto_specific.scsi;
615 spi = &cts->xport_specific.spi;
616 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim),
617 cts->ccb_h.target_id,
618 cts->ccb_h.target_lun,
619 SIM_CHANNEL(ahc, sim),
620 ROLE_UNKNOWN);
621 tinfo = ahc_fetch_transinfo(ahc, devinfo.channel,
622 devinfo.our_scsiid,
623 devinfo.target, &tstate);
624 update_type = 0;
625 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
626 update_type |= AHC_TRANS_GOAL;
627 discenable = &tstate->discenable;
628 tagenable = &tstate->tagenable;
629 tinfo->curr.protocol_version =
630 cts->protocol_version;
631 tinfo->curr.transport_version =
632 cts->transport_version;
633 tinfo->goal.protocol_version =
634 cts->protocol_version;
635 tinfo->goal.transport_version =
636 cts->transport_version;
637 } else if (cts->type == CTS_TYPE_USER_SETTINGS) {
638 update_type |= AHC_TRANS_USER;
639 discenable = &ahc->user_discenable;
640 tagenable = &ahc->user_tagenable;
641 tinfo->user.protocol_version =
642 cts->protocol_version;
643 tinfo->user.transport_version =
644 cts->transport_version;
645 } else {
646 ccb->ccb_h.status = CAM_REQ_INVALID;
647 xpt_done(ccb);
648 break;
649 }
650
651 ahc_lock(ahc, &s);
652
653 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
654 if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0)
655 *discenable |= devinfo.target_mask;
656 else
657 *discenable &= ~devinfo.target_mask;
658 }
659
660 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
661 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0)
662 *tagenable |= devinfo.target_mask;
663 else
664 *tagenable &= ~devinfo.target_mask;
665 }
666
667 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
668 ahc_validate_width(ahc, /*tinfo limit*/NULL,
669 &spi->bus_width, ROLE_UNKNOWN);
670 ahc_set_width(ahc, &devinfo, spi->bus_width,
671 update_type, /*paused*/FALSE);
672 }
673
674 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) {
675 if (update_type == AHC_TRANS_USER)
676 spi->ppr_options = tinfo->user.ppr_options;
677 else
678 spi->ppr_options = tinfo->goal.ppr_options;
679 }
680
681 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) {
682 if (update_type == AHC_TRANS_USER)
683 spi->sync_offset = tinfo->user.offset;
684 else
685 spi->sync_offset = tinfo->goal.offset;
686 }
687
688 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) {
689 if (update_type == AHC_TRANS_USER)
690 spi->sync_period = tinfo->user.period;
691 else
692 spi->sync_period = tinfo->goal.period;
693 }
694
695 if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0)
696 || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) {
697 struct ahc_syncrate *syncrate;
698 u_int maxsync;
699
700 if ((ahc->features & AHC_ULTRA2) != 0)
701 maxsync = AHC_SYNCRATE_DT;
702 else if ((ahc->features & AHC_ULTRA) != 0)
703 maxsync = AHC_SYNCRATE_ULTRA;
704 else
705 maxsync = AHC_SYNCRATE_FAST;
706
707 if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT)
708 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ;
709
710 syncrate = ahc_find_syncrate(ahc, &spi->sync_period,
711 &spi->ppr_options,
712 maxsync);
713 ahc_validate_offset(ahc, /*tinfo limit*/NULL,
714 syncrate, &spi->sync_offset,
715 spi->bus_width, ROLE_UNKNOWN);
716
717 /* We use a period of 0 to represent async */
718 if (spi->sync_offset == 0) {
719 spi->sync_period = 0;
720 spi->ppr_options = 0;
721 }
722
723 ahc_set_syncrate(ahc, &devinfo, syncrate,
724 spi->sync_period, spi->sync_offset,
725 spi->ppr_options, update_type,
726 /*paused*/FALSE);
727 }
728 ahc_unlock(ahc, &s);
729 ccb->ccb_h.status = CAM_REQ_CMP;
730 xpt_done(ccb);
731 #else
732 struct ahc_devinfo devinfo;
733 struct ccb_trans_settings *cts;
734 struct ahc_initiator_tinfo *tinfo;
735 struct ahc_tmode_tstate *tstate;
736 uint16_t *discenable;
737 uint16_t *tagenable;
738 u_int update_type;
739 long s;
740
741 cts = &ccb->cts;
742 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim),
743 cts->ccb_h.target_id,
744 cts->ccb_h.target_lun,
745 SIM_CHANNEL(ahc, sim),
746 ROLE_UNKNOWN);
747 tinfo = ahc_fetch_transinfo(ahc, devinfo.channel,
748 devinfo.our_scsiid,
749 devinfo.target, &tstate);
750 update_type = 0;
751 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0) {
752 update_type |= AHC_TRANS_GOAL;
753 discenable = &tstate->discenable;
754 tagenable = &tstate->tagenable;
755 } else if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) {
756 update_type |= AHC_TRANS_USER;
757 discenable = &ahc->user_discenable;
758 tagenable = &ahc->user_tagenable;
759 } else {
760 ccb->ccb_h.status = CAM_REQ_INVALID;
761 xpt_done(ccb);
762 break;
763 }
764
765 ahc_lock(ahc, &s);
766
767 if ((cts->valid & CCB_TRANS_DISC_VALID) != 0) {
768 if ((cts->flags & CCB_TRANS_DISC_ENB) != 0)
769 *discenable |= devinfo.target_mask;
770 else
771 *discenable &= ~devinfo.target_mask;
772 }
773
774 if ((cts->valid & CCB_TRANS_TQ_VALID) != 0) {
775 if ((cts->flags & CCB_TRANS_TAG_ENB) != 0)
776 *tagenable |= devinfo.target_mask;
777 else
778 *tagenable &= ~devinfo.target_mask;
779 }
780
781 if ((cts->valid & CCB_TRANS_BUS_WIDTH_VALID) != 0) {
782 ahc_validate_width(ahc, /*tinfo limit*/NULL,
783 &cts->bus_width, ROLE_UNKNOWN);
784 ahc_set_width(ahc, &devinfo, cts->bus_width,
785 update_type, /*paused*/FALSE);
786 }
787
788 if ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) == 0) {
789 if (update_type == AHC_TRANS_USER)
790 cts->sync_offset = tinfo->user.offset;
791 else
792 cts->sync_offset = tinfo->goal.offset;
793 }
794
795 if ((cts->valid & CCB_TRANS_SYNC_RATE_VALID) == 0) {
796 if (update_type == AHC_TRANS_USER)
797 cts->sync_period = tinfo->user.period;
798 else
799 cts->sync_period = tinfo->goal.period;
800 }
801
802 if (((cts->valid & CCB_TRANS_SYNC_RATE_VALID) != 0)
803 || ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) != 0)) {
804 struct ahc_syncrate *syncrate;
805 u_int ppr_options;
806 u_int maxsync;
807
808 if ((ahc->features & AHC_ULTRA2) != 0)
809 maxsync = AHC_SYNCRATE_DT;
810 else if ((ahc->features & AHC_ULTRA) != 0)
811 maxsync = AHC_SYNCRATE_ULTRA;
812 else
813 maxsync = AHC_SYNCRATE_FAST;
814
815 ppr_options = 0;
816 if (cts->sync_period <= 9
817 && cts->bus_width == MSG_EXT_WDTR_BUS_16_BIT)
818 ppr_options = MSG_EXT_PPR_DT_REQ;
819
820 syncrate = ahc_find_syncrate(ahc, &cts->sync_period,
821 &ppr_options,
822 maxsync);
823 ahc_validate_offset(ahc, /*tinfo limit*/NULL,
824 syncrate, &cts->sync_offset,
825 MSG_EXT_WDTR_BUS_8_BIT,
826 ROLE_UNKNOWN);
827
828 /* We use a period of 0 to represent async */
829 if (cts->sync_offset == 0) {
830 cts->sync_period = 0;
831 ppr_options = 0;
832 }
833
834 if (ppr_options == MSG_EXT_PPR_DT_REQ
835 && tinfo->user.transport_version >= 3) {
836 tinfo->goal.transport_version =
837 tinfo->user.transport_version;
838 tinfo->curr.transport_version =
839 tinfo->user.transport_version;
840 }
841
842 ahc_set_syncrate(ahc, &devinfo, syncrate,
843 cts->sync_period, cts->sync_offset,
844 ppr_options, update_type,
845 /*paused*/FALSE);
846 }
847 ahc_unlock(ahc, &s);
848 ccb->ccb_h.status = CAM_REQ_CMP;
849 xpt_done(ccb);
850 #endif
851 break;
852 }
853 case XPT_GET_TRAN_SETTINGS:
854 /* Get default/user set transfer settings for the target */
855 {
856
857 ahc_lock(ahc, &s);
858 ahc_get_tran_settings(ahc, SIM_SCSI_ID(ahc, sim),
859 SIM_CHANNEL(ahc, sim), &ccb->cts);
860 ahc_unlock(ahc, &s);
861 xpt_done(ccb);
862 break;
863 }
864 case XPT_CALC_GEOMETRY:
865 {
866 int extended;
867
868 extended = SIM_IS_SCSIBUS_B(ahc, sim)
869 ? ahc->flags & AHC_EXTENDED_TRANS_B
870 : ahc->flags & AHC_EXTENDED_TRANS_A;
871 aic_calc_geometry(&ccb->ccg, extended);
872 xpt_done(ccb);
873 break;
874 }
875 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
876 {
877 int found;
878
879 ahc_lock(ahc, &s);
880 found = ahc_reset_channel(ahc, SIM_CHANNEL(ahc, sim),
881 /*initiate reset*/TRUE);
882 ahc_unlock(ahc, &s);
883 if (bootverbose) {
884 xpt_print_path(SIM_PATH(ahc, sim));
885 printf("SCSI bus reset delivered. "
886 "%d SCBs aborted.\n", found);
887 }
888 ccb->ccb_h.status = CAM_REQ_CMP;
889 xpt_done(ccb);
890 break;
891 }
892 case XPT_TERM_IO: /* Terminate the I/O process */
893 /* XXX Implement */
894 ccb->ccb_h.status = CAM_REQ_INVALID;
895 xpt_done(ccb);
896 break;
897 case XPT_PATH_INQ: /* Path routing inquiry */
898 {
899 struct ccb_pathinq *cpi = &ccb->cpi;
900
901 cpi->version_num = 1; /* XXX??? */
902 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE;
903 if ((ahc->features & AHC_WIDE) != 0)
904 cpi->hba_inquiry |= PI_WIDE_16;
905 if ((ahc->features & AHC_TARGETMODE) != 0) {
906 cpi->target_sprt = PIT_PROCESSOR
907 | PIT_DISCONNECT
908 | PIT_TERM_IO;
909 } else {
910 cpi->target_sprt = 0;
911 }
912 cpi->hba_misc = 0;
913 cpi->hba_eng_cnt = 0;
914 cpi->max_target = (ahc->features & AHC_WIDE) ? 15 : 7;
915 cpi->max_lun = AHC_NUM_LUNS - 1;
916 if (SIM_IS_SCSIBUS_B(ahc, sim)) {
917 cpi->initiator_id = ahc->our_id_b;
918 if ((ahc->flags & AHC_RESET_BUS_B) == 0)
919 cpi->hba_misc |= PIM_NOBUSRESET;
920 } else {
921 cpi->initiator_id = ahc->our_id;
922 if ((ahc->flags & AHC_RESET_BUS_A) == 0)
923 cpi->hba_misc |= PIM_NOBUSRESET;
924 }
925 cpi->bus_id = cam_sim_bus(sim);
926 cpi->base_transfer_speed = 3300;
927 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
928 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN);
929 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
930 cpi->unit_number = cam_sim_unit(sim);
931 #ifdef AHC_NEW_TRAN_SETTINGS
932 cpi->protocol = PROTO_SCSI;
933 cpi->protocol_version = SCSI_REV_2;
934 cpi->transport = XPORT_SPI;
935 cpi->transport_version = 2;
936 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_ST;
937 if ((ahc->features & AHC_DT) != 0) {
938 cpi->transport_version = 3;
939 cpi->xport_specific.spi.ppr_options =
940 SID_SPI_CLOCK_DT_ST;
941 }
942 #endif
943 cpi->ccb_h.status = CAM_REQ_CMP;
944 xpt_done(ccb);
945 break;
946 }
947 default:
948 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
949 xpt_done(ccb);
950 break;
951 }
952 }
953
954 static void
955 ahc_get_tran_settings(struct ahc_softc *ahc, int our_id, char channel,
956 struct ccb_trans_settings *cts)
957 {
958 #ifdef AHC_NEW_TRAN_SETTINGS
959 struct ahc_devinfo devinfo;
960 struct ccb_trans_settings_scsi *scsi;
961 struct ccb_trans_settings_spi *spi;
962 struct ahc_initiator_tinfo *targ_info;
963 struct ahc_tmode_tstate *tstate;
964 struct ahc_transinfo *tinfo;
965
966 scsi = &cts->proto_specific.scsi;
967 spi = &cts->xport_specific.spi;
968 ahc_compile_devinfo(&devinfo, our_id,
969 cts->ccb_h.target_id,
970 cts->ccb_h.target_lun,
971 channel, ROLE_UNKNOWN);
972 targ_info = ahc_fetch_transinfo(ahc, devinfo.channel,
973 devinfo.our_scsiid,
974 devinfo.target, &tstate);
975
976 if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
977 tinfo = &targ_info->curr;
978 else
979 tinfo = &targ_info->user;
980
981 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
982 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB;
983 if (cts->type == CTS_TYPE_USER_SETTINGS) {
984 if ((ahc->user_discenable & devinfo.target_mask) != 0)
985 spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
986
987 if ((ahc->user_tagenable & devinfo.target_mask) != 0)
988 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
989 } else {
990 if ((tstate->discenable & devinfo.target_mask) != 0)
991 spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
992
993 if ((tstate->tagenable & devinfo.target_mask) != 0)
994 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
995 }
996 cts->protocol_version = tinfo->protocol_version;
997 cts->transport_version = tinfo->transport_version;
998
999 spi->sync_period = tinfo->period;
1000 spi->sync_offset = tinfo->offset;
1001 spi->bus_width = tinfo->width;
1002 spi->ppr_options = tinfo->ppr_options;
1003
1004 cts->protocol = PROTO_SCSI;
1005 cts->transport = XPORT_SPI;
1006 spi->valid = CTS_SPI_VALID_SYNC_RATE
1007 | CTS_SPI_VALID_SYNC_OFFSET
1008 | CTS_SPI_VALID_BUS_WIDTH
1009 | CTS_SPI_VALID_PPR_OPTIONS;
1010
1011 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
1012 scsi->valid = CTS_SCSI_VALID_TQ;
1013 spi->valid |= CTS_SPI_VALID_DISC;
1014 } else {
1015 scsi->valid = 0;
1016 }
1017
1018 cts->ccb_h.status = CAM_REQ_CMP;
1019 #else
1020 struct ahc_devinfo devinfo;
1021 struct ahc_initiator_tinfo *targ_info;
1022 struct ahc_tmode_tstate *tstate;
1023 struct ahc_transinfo *tinfo;
1024
1025 ahc_compile_devinfo(&devinfo, our_id,
1026 cts->ccb_h.target_id,
1027 cts->ccb_h.target_lun,
1028 channel, ROLE_UNKNOWN);
1029 targ_info = ahc_fetch_transinfo(ahc, devinfo.channel,
1030 devinfo.our_scsiid,
1031 devinfo.target, &tstate);
1032
1033 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0)
1034 tinfo = &targ_info->curr;
1035 else
1036 tinfo = &targ_info->user;
1037
1038 cts->flags &= ~(CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB);
1039 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) == 0) {
1040 if ((ahc->user_discenable & devinfo.target_mask) != 0)
1041 cts->flags |= CCB_TRANS_DISC_ENB;
1042
1043 if ((ahc->user_tagenable & devinfo.target_mask) != 0)
1044 cts->flags |= CCB_TRANS_TAG_ENB;
1045 } else {
1046 if ((tstate->discenable & devinfo.target_mask) != 0)
1047 cts->flags |= CCB_TRANS_DISC_ENB;
1048
1049 if ((tstate->tagenable & devinfo.target_mask) != 0)
1050 cts->flags |= CCB_TRANS_TAG_ENB;
1051 }
1052 cts->sync_period = tinfo->period;
1053 cts->sync_offset = tinfo->offset;
1054 cts->bus_width = tinfo->width;
1055
1056 cts->valid = CCB_TRANS_SYNC_RATE_VALID
1057 | CCB_TRANS_SYNC_OFFSET_VALID
1058 | CCB_TRANS_BUS_WIDTH_VALID;
1059
1060 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD)
1061 cts->valid |= CCB_TRANS_DISC_VALID|CCB_TRANS_TQ_VALID;
1062
1063 cts->ccb_h.status = CAM_REQ_CMP;
1064 #endif
1065 }
1066
1067 static void
1068 ahc_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg)
1069 {
1070 struct ahc_softc *ahc;
1071 struct cam_sim *sim;
1072
1073 sim = (struct cam_sim *)callback_arg;
1074 ahc = (struct ahc_softc *)cam_sim_softc(sim);
1075 switch (code) {
1076 case AC_LOST_DEVICE:
1077 {
1078 struct ahc_devinfo devinfo;
1079 long s;
1080
1081 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim),
1082 xpt_path_target_id(path),
1083 xpt_path_lun_id(path),
1084 SIM_CHANNEL(ahc, sim),
1085 ROLE_UNKNOWN);
1086
1087 /*
1088 * Revert to async/narrow transfers
1089 * for the next device.
1090 */
1091 ahc_lock(ahc, &s);
1092 ahc_set_width(ahc, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
1093 AHC_TRANS_GOAL|AHC_TRANS_CUR, /*paused*/FALSE);
1094 ahc_set_syncrate(ahc, &devinfo, /*syncrate*/NULL,
1095 /*period*/0, /*offset*/0, /*ppr_options*/0,
1096 AHC_TRANS_GOAL|AHC_TRANS_CUR,
1097 /*paused*/FALSE);
1098 ahc_unlock(ahc, &s);
1099 break;
1100 }
1101 default:
1102 break;
1103 }
1104 }
1105
1106 static void
1107 ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments,
1108 int error)
1109 {
1110 struct scb *scb;
1111 union ccb *ccb;
1112 struct ahc_softc *ahc;
1113 struct ahc_initiator_tinfo *tinfo;
1114 struct ahc_tmode_tstate *tstate;
1115 u_int mask;
1116 long s;
1117
1118 scb = (struct scb *)arg;
1119 ccb = scb->io_ctx;
1120 ahc = scb->ahc_softc;
1121
1122 if (error != 0) {
1123 if (error == EFBIG)
1124 aic_set_transaction_status(scb, CAM_REQ_TOO_BIG);
1125 else
1126 aic_set_transaction_status(scb, CAM_REQ_CMP_ERR);
1127 if (nsegments != 0)
1128 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap);
1129 ahc_lock(ahc, &s);
1130 ahc_free_scb(ahc, scb);
1131 ahc_unlock(ahc, &s);
1132 xpt_done(ccb);
1133 return;
1134 }
1135 if (nsegments != 0) {
1136 struct ahc_dma_seg *sg;
1137 bus_dma_segment_t *end_seg;
1138 bus_dmasync_op_t op;
1139
1140 end_seg = dm_segs + nsegments;
1141
1142 /* Copy the segments into our SG list */
1143 sg = scb->sg_list;
1144 while (dm_segs < end_seg) {
1145 uint32_t len;
1146
1147 sg->addr = aic_htole32(dm_segs->ds_addr);
1148 len = dm_segs->ds_len
1149 | ((dm_segs->ds_addr >> 8) & 0x7F000000);
1150 sg->len = aic_htole32(len);
1151 sg++;
1152 dm_segs++;
1153 }
1154
1155 /*
1156 * Note where to find the SG entries in bus space.
1157 * We also set the full residual flag which the
1158 * sequencer will clear as soon as a data transfer
1159 * occurs.
1160 */
1161 scb->hscb->sgptr = aic_htole32(scb->sg_list_phys|SG_FULL_RESID);
1162
1163 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
1164 op = BUS_DMASYNC_PREREAD;
1165 else
1166 op = BUS_DMASYNC_PREWRITE;
1167
1168 bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op);
1169
1170 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
1171 struct target_data *tdata;
1172
1173 tdata = &scb->hscb->shared_data.tdata;
1174 tdata->target_phases |= DPHASE_PENDING;
1175 /*
1176 * CAM data direction is relative to the initiator.
1177 */
1178 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
1179 tdata->data_phase = P_DATAOUT;
1180 else
1181 tdata->data_phase = P_DATAIN;
1182
1183 /*
1184 * If the transfer is of an odd length and in the
1185 * "in" direction (scsi->HostBus), then it may
1186 * trigger a bug in the 'WideODD' feature of
1187 * non-Ultra2 chips. Force the total data-length
1188 * to be even by adding an extra, 1 byte, SG,
1189 * element. We do this even if we are not currently
1190 * negotiated wide as negotiation could occur before
1191 * this command is executed.
1192 */
1193 if ((ahc->bugs & AHC_TMODE_WIDEODD_BUG) != 0
1194 && (ccb->csio.dxfer_len & 0x1) != 0
1195 && (ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1196
1197 nsegments++;
1198 if (nsegments > AHC_NSEG) {
1199
1200 aic_set_transaction_status(scb,
1201 CAM_REQ_TOO_BIG);
1202 bus_dmamap_unload(ahc->buffer_dmat,
1203 scb->dmamap);
1204 ahc_lock(ahc, &s);
1205 ahc_free_scb(ahc, scb);
1206 ahc_unlock(ahc, &s);
1207 xpt_done(ccb);
1208 return;
1209 }
1210 sg->addr = aic_htole32(ahc->dma_bug_buf);
1211 sg->len = aic_htole32(1);
1212 sg++;
1213 }
1214 }
1215 sg--;
1216 sg->len |= aic_htole32(AHC_DMA_LAST_SEG);
1217
1218 /* Copy the first SG into the "current" data pointer area */
1219 scb->hscb->dataptr = scb->sg_list->addr;
1220 scb->hscb->datacnt = scb->sg_list->len;
1221 } else {
1222 scb->hscb->sgptr = aic_htole32(SG_LIST_NULL);
1223 scb->hscb->dataptr = 0;
1224 scb->hscb->datacnt = 0;
1225 }
1226
1227 scb->sg_count = nsegments;
1228
1229 ahc_lock(ahc, &s);
1230
1231 /*
1232 * Last time we need to check if this SCB needs to
1233 * be aborted.
1234 */
1235 if (aic_get_transaction_status(scb) != CAM_REQ_INPROG) {
1236 if (nsegments != 0)
1237 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap);
1238 ahc_free_scb(ahc, scb);
1239 ahc_unlock(ahc, &s);
1240 xpt_done(ccb);
1241 return;
1242 }
1243
1244 tinfo = ahc_fetch_transinfo(ahc, SCSIID_CHANNEL(ahc, scb->hscb->scsiid),
1245 SCSIID_OUR_ID(scb->hscb->scsiid),
1246 SCSIID_TARGET(ahc, scb->hscb->scsiid),
1247 &tstate);
1248
1249 mask = SCB_GET_TARGET_MASK(ahc, scb);
1250 scb->hscb->scsirate = tinfo->scsirate;
1251 scb->hscb->scsioffset = tinfo->curr.offset;
1252 if ((tstate->ultraenb & mask) != 0)
1253 scb->hscb->control |= ULTRAENB;
1254
1255 if ((tstate->discenable & mask) != 0
1256 && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0)
1257 scb->hscb->control |= DISCENB;
1258
1259 if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0
1260 && (tinfo->goal.width != 0
1261 || tinfo->goal.offset != 0
1262 || tinfo->goal.ppr_options != 0)) {
1263 scb->flags |= SCB_NEGOTIATE;
1264 scb->hscb->control |= MK_MESSAGE;
1265 } else if ((tstate->auto_negotiate & mask) != 0) {
1266 scb->flags |= SCB_AUTO_NEGOTIATE;
1267 scb->hscb->control |= MK_MESSAGE;
1268 }
1269
1270 LIST_INSERT_HEAD(&ahc->pending_scbs, scb, pending_links);
1271
1272 ccb->ccb_h.status |= CAM_SIM_QUEUED;
1273
1274 /*
1275 * We only allow one untagged transaction
1276 * per target in the initiator role unless
1277 * we are storing a full busy target *lun*
1278 * table in SCB space.
1279 */
1280 if ((scb->hscb->control & (TARGET_SCB|TAG_ENB)) == 0
1281 && (ahc->flags & AHC_SCB_BTT) == 0) {
1282 struct scb_tailq *untagged_q;
1283 int target_offset;
1284
1285 target_offset = SCB_GET_TARGET_OFFSET(ahc, scb);
1286 untagged_q = &(ahc->untagged_queues[target_offset]);
1287 TAILQ_INSERT_TAIL(untagged_q, scb, links.tqe);
1288 scb->flags |= SCB_UNTAGGEDQ;
1289 if (TAILQ_FIRST(untagged_q) != scb) {
1290 ahc_unlock(ahc, &s);
1291 return;
1292 }
1293 }
1294 scb->flags |= SCB_ACTIVE;
1295
1296 /*
1297 * Timers are disabled while recovery is in progress.
1298 */
1299 aic_scb_timer_start(scb);
1300
1301 if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) {
1302 /* Define a mapping from our tag to the SCB. */
1303 ahc->scb_data->scbindex[scb->hscb->tag] = scb;
1304 ahc_pause(ahc);
1305 if ((ahc->flags & AHC_PAGESCBS) == 0)
1306 ahc_outb(ahc, SCBPTR, scb->hscb->tag);
1307 ahc_outb(ahc, TARG_IMMEDIATE_SCB, scb->hscb->tag);
1308 ahc_unpause(ahc);
1309 } else {
1310 ahc_queue_scb(ahc, scb);
1311 }
1312
1313 ahc_unlock(ahc, &s);
1314 }
1315
1316 static void
1317 ahc_poll(struct cam_sim *sim)
1318 {
1319 struct ahc_softc *ahc;
1320
1321 ahc = (struct ahc_softc *)cam_sim_softc(sim);
1322 ahc_intr(ahc);
1323 }
1324
1325 static void
1326 ahc_setup_data(struct ahc_softc *ahc, struct cam_sim *sim,
1327 struct ccb_scsiio *csio, struct scb *scb)
1328 {
1329 struct hardware_scb *hscb;
1330 struct ccb_hdr *ccb_h;
1331
1332 hscb = scb->hscb;
1333 ccb_h = &csio->ccb_h;
1334
1335 csio->resid = 0;
1336 csio->sense_resid = 0;
1337 if (ccb_h->func_code == XPT_SCSI_IO) {
1338 hscb->cdb_len = csio->cdb_len;
1339 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) {
1340
1341 if (hscb->cdb_len > sizeof(hscb->cdb32)
1342 || (ccb_h->flags & CAM_CDB_PHYS) != 0) {
1343 u_long s;
1344
1345 aic_set_transaction_status(scb,
1346 CAM_REQ_INVALID);
1347 ahc_lock(ahc, &s);
1348 ahc_free_scb(ahc, scb);
1349 ahc_unlock(ahc, &s);
1350 xpt_done((union ccb *)csio);
1351 return;
1352 }
1353 if (hscb->cdb_len > 12) {
1354 memcpy(hscb->cdb32,
1355 csio->cdb_io.cdb_ptr,
1356 hscb->cdb_len);
1357 scb->flags |= SCB_CDB32_PTR;
1358 } else {
1359 memcpy(hscb->shared_data.cdb,
1360 csio->cdb_io.cdb_ptr,
1361 hscb->cdb_len);
1362 }
1363 } else {
1364 if (hscb->cdb_len > 12) {
1365 memcpy(hscb->cdb32, csio->cdb_io.cdb_bytes,
1366 hscb->cdb_len);
1367 scb->flags |= SCB_CDB32_PTR;
1368 } else {
1369 memcpy(hscb->shared_data.cdb,
1370 csio->cdb_io.cdb_bytes,
1371 hscb->cdb_len);
1372 }
1373 }
1374 }
1375
1376 /* Only use S/G if there is a transfer */
1377 if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
1378 if ((ccb_h->flags & CAM_SCATTER_VALID) == 0) {
1379 /* We've been given a pointer to a single buffer */
1380 if ((ccb_h->flags & CAM_DATA_PHYS) == 0) {
1381 int s;
1382 int error;
1383
1384 s = splsoftvm();
1385 error = bus_dmamap_load(ahc->buffer_dmat,
1386 scb->dmamap,
1387 csio->data_ptr,
1388 csio->dxfer_len,
1389 ahc_execute_scb,
1390 scb, /*flags*/0);
1391 if (error == EINPROGRESS) {
1392 /*
1393 * So as to maintain ordering,
1394 * freeze the controller queue
1395 * until our mapping is
1396 * returned.
1397 */
1398 xpt_freeze_simq(sim,
1399 /*count*/1);
1400 scb->io_ctx->ccb_h.status |=
1401 CAM_RELEASE_SIMQ;
1402 }
1403 splx(s);
1404 } else {
1405 struct bus_dma_segment seg;
1406
1407 /* Pointer to physical buffer */
1408 if (csio->dxfer_len > AHC_MAXTRANSFER_SIZE)
1409 panic("ahc_setup_data - Transfer size "
1410 "larger than can device max");
1411
1412 seg.ds_addr =
1413 (bus_addr_t)(vm_offset_t)csio->data_ptr;
1414 seg.ds_len = csio->dxfer_len;
1415 ahc_execute_scb(scb, &seg, 1, 0);
1416 }
1417 } else {
1418 struct bus_dma_segment *segs;
1419
1420 if ((ccb_h->flags & CAM_DATA_PHYS) != 0)
1421 panic("ahc_setup_data - Physical segment "
1422 "pointers unsupported");
1423
1424 if ((ccb_h->flags & CAM_SG_LIST_PHYS) == 0)
1425 panic("ahc_setup_data - Virtual segment "
1426 "addresses unsupported");
1427
1428 /* Just use the segments provided */
1429 segs = (struct bus_dma_segment *)csio->data_ptr;
1430 ahc_execute_scb(scb, segs, csio->sglist_cnt, 0);
1431 }
1432 } else {
1433 ahc_execute_scb(scb, NULL, 0, 0);
1434 }
1435 }
1436
1437 static void
1438 ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim, union ccb *ccb)
1439 {
1440 union ccb *abort_ccb;
1441
1442 abort_ccb = ccb->cab.abort_ccb;
1443 switch (abort_ccb->ccb_h.func_code) {
1444 case XPT_ACCEPT_TARGET_IO:
1445 case XPT_IMMED_NOTIFY:
1446 case XPT_CONT_TARGET_IO:
1447 {
1448 struct ahc_tmode_tstate *tstate;
1449 struct ahc_tmode_lstate *lstate;
1450 struct ccb_hdr_slist *list;
1451 cam_status status;
1452
1453 status = ahc_find_tmode_devs(ahc, sim, abort_ccb, &tstate,
1454 &lstate, TRUE);
1455
1456 if (status != CAM_REQ_CMP) {
1457 ccb->ccb_h.status = status;
1458 break;
1459 }
1460
1461 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO)
1462 list = &lstate->accept_tios;
1463 else if (abort_ccb->ccb_h.func_code == XPT_IMMED_NOTIFY)
1464 list = &lstate->immed_notifies;
1465 else
1466 list = NULL;
1467
1468 if (list != NULL) {
1469 struct ccb_hdr *curelm;
1470 int found;
1471
1472 curelm = SLIST_FIRST(list);
1473 found = 0;
1474 if (curelm == &abort_ccb->ccb_h) {
1475 found = 1;
1476 SLIST_REMOVE_HEAD(list, sim_links.sle);
1477 } else {
1478 while(curelm != NULL) {
1479 struct ccb_hdr *nextelm;
1480
1481 nextelm =
1482 SLIST_NEXT(curelm, sim_links.sle);
1483
1484 if (nextelm == &abort_ccb->ccb_h) {
1485 found = 1;
1486 SLIST_NEXT(curelm,
1487 sim_links.sle) =
1488 SLIST_NEXT(nextelm,
1489 sim_links.sle);
1490 break;
1491 }
1492 curelm = nextelm;
1493 }
1494 }
1495
1496 if (found) {
1497 abort_ccb->ccb_h.status = CAM_REQ_ABORTED;
1498 xpt_done(abort_ccb);
1499 ccb->ccb_h.status = CAM_REQ_CMP;
1500 } else {
1501 xpt_print_path(abort_ccb->ccb_h.path);
1502 printf("Not found\n");
1503 ccb->ccb_h.status = CAM_PATH_INVALID;
1504 }
1505 break;
1506 }
1507 /* FALLTHROUGH */
1508 }
1509 case XPT_SCSI_IO:
1510 /* XXX Fully implement the hard ones */
1511 ccb->ccb_h.status = CAM_UA_ABORT;
1512 break;
1513 default:
1514 ccb->ccb_h.status = CAM_REQ_INVALID;
1515 break;
1516 }
1517 xpt_done(ccb);
1518 }
1519
1520 void
1521 ahc_send_async(struct ahc_softc *ahc, char channel, u_int target,
1522 u_int lun, ac_code code, void *opt_arg)
1523 {
1524 struct ccb_trans_settings cts;
1525 struct cam_path *path;
1526 void *arg;
1527 int error;
1528
1529 arg = NULL;
1530 error = ahc_create_path(ahc, channel, target, lun, &path);
1531
1532 if (error != CAM_REQ_CMP)
1533 return;
1534
1535 switch (code) {
1536 case AC_TRANSFER_NEG:
1537 {
1538 #ifdef AHC_NEW_TRAN_SETTINGS
1539 struct ccb_trans_settings_scsi *scsi;
1540
1541 cts.type = CTS_TYPE_CURRENT_SETTINGS;
1542 scsi = &cts.proto_specific.scsi;
1543 #else
1544 cts.flags = CCB_TRANS_CURRENT_SETTINGS;
1545 #endif
1546 cts.ccb_h.path = path;
1547 cts.ccb_h.target_id = target;
1548 cts.ccb_h.target_lun = lun;
1549 ahc_get_tran_settings(ahc, channel == 'A' ? ahc->our_id
1550 : ahc->our_id_b,
1551 channel, &cts);
1552 arg = &cts;
1553 #ifdef AHC_NEW_TRAN_SETTINGS
1554 scsi->valid &= ~CTS_SCSI_VALID_TQ;
1555 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
1556 #else
1557 cts.valid &= ~CCB_TRANS_TQ_VALID;
1558 cts.flags &= ~CCB_TRANS_TAG_ENB;
1559 #endif
1560 if (opt_arg == NULL)
1561 break;
1562 if (*((ahc_queue_alg *)opt_arg) == AHC_QUEUE_TAGGED)
1563 #ifdef AHC_NEW_TRAN_SETTINGS
1564 scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB;
1565 scsi->valid |= CTS_SCSI_VALID_TQ;
1566 #else
1567 cts.flags |= CCB_TRANS_TAG_ENB;
1568 cts.valid |= CCB_TRANS_TQ_VALID;
1569 #endif
1570 break;
1571 }
1572 case AC_SENT_BDR:
1573 case AC_BUS_RESET:
1574 break;
1575 default:
1576 panic("ahc_send_async: Unexpected async event");
1577 }
1578 xpt_async(code, path, arg);
1579 xpt_free_path(path);
1580 }
1581
1582 void
1583 ahc_platform_set_tags(struct ahc_softc *ahc,
1584 struct ahc_devinfo *devinfo, int enable)
1585 {
1586 }
1587
1588 int
1589 ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg)
1590 {
1591 ahc->platform_data = malloc(sizeof(struct ahc_platform_data), M_DEVBUF,
1592 M_NOWAIT | M_ZERO);
1593 if (ahc->platform_data == NULL)
1594 return (ENOMEM);
1595 return (0);
1596 }
1597
1598 void
1599 ahc_platform_free(struct ahc_softc *ahc)
1600 {
1601 struct ahc_platform_data *pdata;
1602
1603 pdata = ahc->platform_data;
1604 if (pdata != NULL) {
1605 if (pdata->regs != NULL)
1606 bus_release_resource(ahc->dev_softc,
1607 pdata->regs_res_type,
1608 pdata->regs_res_id,
1609 pdata->regs);
1610
1611 if (pdata->irq != NULL)
1612 bus_release_resource(ahc->dev_softc,
1613 pdata->irq_res_type,
1614 0, pdata->irq);
1615
1616 if (pdata->sim_b != NULL) {
1617 xpt_async(AC_LOST_DEVICE, pdata->path_b, NULL);
1618 xpt_free_path(pdata->path_b);
1619 xpt_bus_deregister(cam_sim_path(pdata->sim_b));
1620 cam_sim_free(pdata->sim_b, /*free_devq*/TRUE);
1621 }
1622 if (pdata->sim != NULL) {
1623 xpt_async(AC_LOST_DEVICE, pdata->path, NULL);
1624 xpt_free_path(pdata->path);
1625 xpt_bus_deregister(cam_sim_path(pdata->sim));
1626 cam_sim_free(pdata->sim, /*free_devq*/TRUE);
1627 }
1628 if (pdata->eh != NULL)
1629 EVENTHANDLER_DEREGISTER(shutdown_final, pdata->eh);
1630 free(ahc->platform_data, M_DEVBUF);
1631 }
1632 }
1633
1634 int
1635 ahc_softc_comp(struct ahc_softc *lahc, struct ahc_softc *rahc)
1636 {
1637 /* We don't sort softcs under FreeBSD so report equal always */
1638 return (0);
1639 }
1640
1641 int
1642 ahc_detach(device_t dev)
1643 {
1644 struct ahc_softc *ahc;
1645 u_long l;
1646 u_long s;
1647
1648 ahc_list_lock(&l);
1649 device_printf(dev, "detaching device\n");
1650 ahc = device_get_softc(dev);
1651 ahc = ahc_find_softc(ahc);
1652 if (ahc == NULL) {
1653 device_printf(dev, "aic7xxx already detached\n");
1654 ahc_list_unlock(&l);
1655 return (ENOENT);
1656 }
1657 TAILQ_REMOVE(&ahc_tailq, ahc, links);
1658 ahc_list_unlock(&l);
1659 ahc_lock(ahc, &s);
1660 ahc_intr_enable(ahc, FALSE);
1661 bus_teardown_intr(dev, ahc->platform_data->irq, ahc->platform_data->ih);
1662 ahc_unlock(ahc, &s);
1663 ahc_free(ahc);
1664 return (0);
1665 }
1666
1667 #if UNUSED
1668 static void
1669 ahc_dump_targcmd(struct target_cmd *cmd)
1670 {
1671 uint8_t *byte;
1672 uint8_t *last_byte;
1673 int i;
1674
1675 byte = &cmd->initiator_channel;
1676 /* Debugging info for received commands */
1677 last_byte = &cmd[1].initiator_channel;
1678
1679 i = 0;
1680 while (byte < last_byte) {
1681 if (i == 0)
1682 printf("\t");
1683 printf("%#x", *byte++);
1684 i++;
1685 if (i == 8) {
1686 printf("\n");
1687 i = 0;
1688 } else {
1689 printf(", ");
1690 }
1691 }
1692 }
1693 #endif
1694
1695 static int
1696 ahc_modevent(module_t mod, int type, void *data)
1697 {
1698 /* XXX Deal with busy status on unload. */
1699 /* XXX Deal with unknown events */
1700 return 0;
1701 }
1702
1703 static moduledata_t ahc_mod = {
1704 "ahc",
1705 ahc_modevent,
1706 NULL
1707 };
1708
1709 DECLARE_MODULE(ahc, ahc_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
1710 MODULE_DEPEND(ahc, cam, 1, 1, 1);
1711 MODULE_VERSION(ahc, 1);
Cache object: eff9dc593c1a0ec5a2fe9dd28fddbcd9
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