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