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 devclass_t ahc_devclass;
49
50 #if 0
51 static void ahc_dump_targcmd(struct target_cmd *cmd);
52 #endif
53 static int ahc_modevent(module_t mod, int type, void *data);
54 static void ahc_action(struct cam_sim *sim, union ccb *ccb);
55 static void ahc_get_tran_settings(struct ahc_softc *ahc,
56 int our_id, char channel,
57 struct ccb_trans_settings *cts);
58 static void ahc_async(void *callback_arg, uint32_t code,
59 struct cam_path *path, void *arg);
60 static void ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs,
61 int nsegments, int error);
62 static void ahc_poll(struct cam_sim *sim);
63 static void ahc_setup_data(struct ahc_softc *ahc, struct cam_sim *sim,
64 struct ccb_scsiio *csio, struct scb *scb);
65 static void ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim,
66 union ccb *ccb);
67 static int ahc_create_path(struct ahc_softc *ahc,
68 char channel, u_int target, u_int lun,
69 struct cam_path **path);
70
71 static int
ahc_create_path(struct ahc_softc * ahc,char channel,u_int target,u_int lun,struct cam_path ** path)72 ahc_create_path(struct ahc_softc *ahc, char channel, u_int target,
73 u_int lun, struct cam_path **path)
74 {
75 path_id_t path_id;
76
77 if (channel == 'B')
78 path_id = cam_sim_path(ahc->platform_data->sim_b);
79 else
80 path_id = cam_sim_path(ahc->platform_data->sim);
81
82 return (xpt_create_path(path, /*periph*/NULL,
83 path_id, target, lun));
84 }
85
86 int
ahc_map_int(struct ahc_softc * ahc)87 ahc_map_int(struct ahc_softc *ahc)
88 {
89 int error;
90 int zero;
91 int shareable;
92
93 zero = 0;
94 shareable = (ahc->flags & AHC_EDGE_INTERRUPT) ? 0: RF_SHAREABLE;
95 ahc->platform_data->irq =
96 bus_alloc_resource_any(ahc->dev_softc, SYS_RES_IRQ, &zero,
97 RF_ACTIVE | shareable);
98 if (ahc->platform_data->irq == NULL) {
99 device_printf(ahc->dev_softc,
100 "bus_alloc_resource() failed to allocate IRQ\n");
101 return (ENOMEM);
102 }
103 ahc->platform_data->irq_res_type = SYS_RES_IRQ;
104
105 /* Hook up our interrupt handler */
106 error = bus_setup_intr(ahc->dev_softc, ahc->platform_data->irq,
107 INTR_TYPE_CAM|INTR_MPSAFE, NULL,
108 ahc_platform_intr, ahc, &ahc->platform_data->ih);
109
110 if (error != 0)
111 device_printf(ahc->dev_softc, "bus_setup_intr() failed: %d\n",
112 error);
113 return (error);
114 }
115
116 int
aic7770_map_registers(struct ahc_softc * ahc,u_int unused_ioport_arg)117 aic7770_map_registers(struct ahc_softc *ahc, u_int unused_ioport_arg)
118 {
119 struct resource *regs;
120 int rid;
121
122 rid = 0;
123 regs = bus_alloc_resource_any(ahc->dev_softc, SYS_RES_IOPORT, &rid,
124 RF_ACTIVE);
125 if (regs == NULL) {
126 device_printf(ahc->dev_softc, "Unable to map I/O space?!\n");
127 return ENOMEM;
128 }
129 ahc->platform_data->regs_res_type = SYS_RES_IOPORT;
130 ahc->platform_data->regs_res_id = rid;
131 ahc->platform_data->regs = regs;
132 ahc->tag = rman_get_bustag(regs);
133 ahc->bsh = rman_get_bushandle(regs);
134 return (0);
135 }
136
137 /*
138 * Attach all the sub-devices we can find
139 */
140 int
ahc_attach(struct ahc_softc * ahc)141 ahc_attach(struct ahc_softc *ahc)
142 {
143 char ahc_info[256];
144 struct ccb_setasync csa;
145 struct cam_devq *devq;
146 int bus_id;
147 int bus_id2;
148 struct cam_sim *sim;
149 struct cam_sim *sim2;
150 struct cam_path *path;
151 struct cam_path *path2;
152 int count;
153
154 count = 0;
155 sim = NULL;
156 sim2 = NULL;
157 path = NULL;
158 path2 = NULL;
159
160 /*
161 * Create a thread to perform all recovery.
162 */
163 if (ahc_spawn_recovery_thread(ahc) != 0)
164 goto fail;
165
166 ahc_controller_info(ahc, ahc_info);
167 printf("%s\n", ahc_info);
168 ahc_lock(ahc);
169
170 /*
171 * Attach secondary channel first if the user has
172 * declared it the primary channel.
173 */
174 if ((ahc->features & AHC_TWIN) != 0
175 && (ahc->flags & AHC_PRIMARY_CHANNEL) != 0) {
176 bus_id = 1;
177 bus_id2 = 0;
178 } else {
179 bus_id = 0;
180 bus_id2 = 1;
181 }
182
183 /*
184 * Create the device queue for our SIM(s).
185 */
186 devq = cam_simq_alloc(AHC_MAX_QUEUE);
187 if (devq == NULL)
188 goto fail;
189
190 /*
191 * Construct our first channel SIM entry
192 */
193 sim = cam_sim_alloc(ahc_action, ahc_poll, "ahc", ahc,
194 device_get_unit(ahc->dev_softc),
195 &ahc->platform_data->mtx, 1, AHC_MAX_QUEUE, devq);
196 if (sim == NULL) {
197 cam_simq_free(devq);
198 goto fail;
199 }
200
201 if (xpt_bus_register(sim, ahc->dev_softc, bus_id) != CAM_SUCCESS) {
202 cam_sim_free(sim, /*free_devq*/TRUE);
203 sim = NULL;
204 goto fail;
205 }
206
207 if (xpt_create_path(&path, /*periph*/NULL,
208 cam_sim_path(sim), CAM_TARGET_WILDCARD,
209 CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
210 xpt_bus_deregister(cam_sim_path(sim));
211 cam_sim_free(sim, /*free_devq*/TRUE);
212 sim = NULL;
213 goto fail;
214 }
215
216 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
217 csa.ccb_h.func_code = XPT_SASYNC_CB;
218 csa.event_enable = AC_LOST_DEVICE;
219 csa.callback = ahc_async;
220 csa.callback_arg = sim;
221 xpt_action((union ccb *)&csa);
222 count++;
223
224 if (ahc->features & AHC_TWIN) {
225 sim2 = cam_sim_alloc(ahc_action, ahc_poll, "ahc",
226 ahc, device_get_unit(ahc->dev_softc),
227 &ahc->platform_data->mtx, 1,
228 AHC_MAX_QUEUE, devq);
229
230 if (sim2 == NULL) {
231 printf("ahc_attach: Unable to attach second "
232 "bus due to resource shortage");
233 goto fail;
234 }
235
236 if (xpt_bus_register(sim2, ahc->dev_softc, bus_id2) !=
237 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 ahc_unlock(ahc);
280
281 if (count != 0) {
282 /* We have to wait until after any system dumps... */
283 ahc->platform_data->eh =
284 EVENTHANDLER_REGISTER(shutdown_final, ahc_shutdown,
285 ahc, SHUTDOWN_PRI_DEFAULT);
286 ahc_intr_enable(ahc, TRUE);
287 }
288
289 return (count);
290 }
291
292 /*
293 * Catch an interrupt from the adapter
294 */
295 void
ahc_platform_intr(void * arg)296 ahc_platform_intr(void *arg)
297 {
298 struct ahc_softc *ahc;
299
300 ahc = (struct ahc_softc *)arg;
301 ahc_lock(ahc);
302 ahc_intr(ahc);
303 ahc_unlock(ahc);
304 }
305
306 static void
ahc_sync_ccb(struct ahc_softc * ahc,struct scb * scb,union ccb * ccb,bool post)307 ahc_sync_ccb(struct ahc_softc *ahc, struct scb *scb, union ccb *ccb, bool post)
308 {
309 bus_dmasync_op_t op;
310 uint32_t rdmask;
311
312 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO)
313 rdmask = CAM_DIR_OUT;
314 else
315 rdmask = CAM_DIR_IN;
316
317 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == rdmask)
318 op = post ? BUS_DMASYNC_POSTREAD : BUS_DMASYNC_PREREAD;
319 else
320 op = post ? BUS_DMASYNC_POSTWRITE : BUS_DMASYNC_PREWRITE;
321
322 bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op);
323 }
324
325 /*
326 * We have an scb which has been processed by the
327 * adaptor, now we look to see how the operation
328 * went.
329 */
330 void
ahc_done(struct ahc_softc * ahc,struct scb * scb)331 ahc_done(struct ahc_softc *ahc, struct scb *scb)
332 {
333 union ccb *ccb;
334
335 CAM_DEBUG(scb->io_ctx->ccb_h.path, CAM_DEBUG_TRACE,
336 ("ahc_done - scb %d\n", scb->hscb->tag));
337
338 ccb = scb->io_ctx;
339 LIST_REMOVE(scb, pending_links);
340 if ((scb->flags & SCB_TIMEDOUT) != 0)
341 LIST_REMOVE(scb, timedout_links);
342 if ((scb->flags & SCB_UNTAGGEDQ) != 0) {
343 struct scb_tailq *untagged_q;
344 int target_offset;
345
346 target_offset = SCB_GET_TARGET_OFFSET(ahc, scb);
347 untagged_q = &ahc->untagged_queues[target_offset];
348 TAILQ_REMOVE(untagged_q, scb, links.tqe);
349 scb->flags &= ~SCB_UNTAGGEDQ;
350 ahc_run_untagged_queue(ahc, untagged_q);
351 }
352
353 callout_stop(&scb->io_timer);
354
355 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
356 ahc_sync_ccb(ahc, scb, ccb, true);
357 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap);
358 }
359
360 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
361 struct cam_path *ccb_path;
362
363 /*
364 * If we have finally disconnected, clean up our
365 * pending device state.
366 * XXX - There may be error states that cause where
367 * we will remain connected.
368 */
369 ccb_path = ccb->ccb_h.path;
370 if (ahc->pending_device != NULL
371 && xpt_path_comp(ahc->pending_device->path, ccb_path) == 0) {
372 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
373 ahc->pending_device = NULL;
374 } else {
375 if (bootverbose) {
376 xpt_print_path(ccb->ccb_h.path);
377 printf("Still connected\n");
378 }
379 aic_freeze_ccb(ccb);
380 }
381 }
382
383 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG)
384 ccb->ccb_h.status |= CAM_REQ_CMP;
385 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
386 ahc_free_scb(ahc, scb);
387 xpt_done(ccb);
388 return;
389 }
390
391 /*
392 * If the recovery SCB completes, we have to be
393 * out of our timeout.
394 */
395 if ((scb->flags & SCB_RECOVERY_SCB) != 0) {
396 struct scb *list_scb;
397
398 ahc->scb_data->recovery_scbs--;
399
400 if (aic_get_transaction_status(scb) == CAM_BDR_SENT
401 || aic_get_transaction_status(scb) == CAM_REQ_ABORTED)
402 aic_set_transaction_status(scb, CAM_CMD_TIMEOUT);
403
404 if (ahc->scb_data->recovery_scbs == 0) {
405 /*
406 * All recovery actions have completed successfully,
407 * so reinstate the timeouts for all other pending
408 * commands.
409 */
410 LIST_FOREACH(list_scb, &ahc->pending_scbs,
411 pending_links) {
412 aic_scb_timer_reset(list_scb,
413 aic_get_timeout(scb));
414 }
415
416 ahc_print_path(ahc, scb);
417 printf("no longer in timeout, status = %x\n",
418 ccb->ccb_h.status);
419 }
420 }
421
422 /* Don't clobber any existing error state */
423 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) {
424 ccb->ccb_h.status |= CAM_REQ_CMP;
425 } else if ((scb->flags & SCB_SENSE) != 0) {
426 /*
427 * We performed autosense retrieval.
428 *
429 * Zero any sense not transferred by the
430 * device. The SCSI spec mandates that any
431 * untransfered data should be assumed to be
432 * zero. Complete the 'bounce' of sense information
433 * through buffers accessible via bus-space by
434 * copying it into the clients csio.
435 */
436 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data));
437 memcpy(&ccb->csio.sense_data,
438 ahc_get_sense_buf(ahc, scb),
439 (aic_le32toh(scb->sg_list->len) & AHC_SG_LEN_MASK)
440 - ccb->csio.sense_resid);
441 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID;
442 }
443 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
444 ahc_free_scb(ahc, scb);
445 xpt_done(ccb);
446 }
447
448 static void
ahc_action(struct cam_sim * sim,union ccb * ccb)449 ahc_action(struct cam_sim *sim, union ccb *ccb)
450 {
451 struct ahc_softc *ahc;
452 struct ahc_tmode_lstate *lstate;
453 u_int target_id;
454 u_int our_id;
455
456 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahc_action\n"));
457
458 ahc = (struct ahc_softc *)cam_sim_softc(sim);
459
460 target_id = ccb->ccb_h.target_id;
461 our_id = SIM_SCSI_ID(ahc, sim);
462
463 switch (ccb->ccb_h.func_code) {
464 /* Common cases first */
465 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */
466 case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/
467 {
468 struct ahc_tmode_tstate *tstate;
469 cam_status status;
470
471 status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate,
472 &lstate, TRUE);
473
474 if (status != CAM_REQ_CMP) {
475 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
476 /* Response from the black hole device */
477 tstate = NULL;
478 lstate = ahc->black_hole;
479 } else {
480 ccb->ccb_h.status = status;
481 xpt_done(ccb);
482 break;
483 }
484 }
485 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
486 SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h,
487 sim_links.sle);
488 ccb->ccb_h.status = CAM_REQ_INPROG;
489 if ((ahc->flags & AHC_TQINFIFO_BLOCKED) != 0)
490 ahc_run_tqinfifo(ahc, /*paused*/FALSE);
491 break;
492 }
493
494 /*
495 * The target_id represents the target we attempt to
496 * select. In target mode, this is the initiator of
497 * the original command.
498 */
499 our_id = target_id;
500 target_id = ccb->csio.init_id;
501 /* FALLTHROUGH */
502 }
503 case XPT_SCSI_IO: /* Execute the requested I/O operation */
504 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */
505 {
506 struct scb *scb;
507 struct hardware_scb *hscb;
508
509 if ((ahc->flags & AHC_INITIATORROLE) == 0
510 && (ccb->ccb_h.func_code == XPT_SCSI_IO
511 || ccb->ccb_h.func_code == XPT_RESET_DEV)) {
512 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
513 xpt_done(ccb);
514 return;
515 }
516
517 /*
518 * get an scb to use.
519 */
520 if ((scb = ahc_get_scb(ahc)) == NULL) {
521 xpt_freeze_simq(sim, /*count*/1);
522 ahc->flags |= AHC_RESOURCE_SHORTAGE;
523 ccb->ccb_h.status = CAM_REQUEUE_REQ;
524 xpt_done(ccb);
525 return;
526 }
527
528 hscb = scb->hscb;
529
530 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE,
531 ("start scb(%p)\n", scb));
532 scb->io_ctx = ccb;
533 /*
534 * So we can find the SCB when an abort is requested
535 */
536 ccb->ccb_h.ccb_scb_ptr = scb;
537
538 /*
539 * Put all the arguments for the xfer in the scb
540 */
541 hscb->control = 0;
542 hscb->scsiid = BUILD_SCSIID(ahc, sim, target_id, our_id);
543 hscb->lun = ccb->ccb_h.target_lun;
544 if (ccb->ccb_h.func_code == XPT_RESET_DEV) {
545 hscb->cdb_len = 0;
546 scb->flags |= SCB_DEVICE_RESET;
547 hscb->control |= MK_MESSAGE;
548 ahc_execute_scb(scb, NULL, 0, 0);
549 } else {
550 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
551 struct target_data *tdata;
552
553 tdata = &hscb->shared_data.tdata;
554 if (ahc->pending_device == lstate)
555 scb->flags |= SCB_TARGET_IMMEDIATE;
556 hscb->control |= TARGET_SCB;
557 scb->flags |= SCB_TARGET_SCB;
558 tdata->target_phases = 0;
559 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
560 tdata->target_phases |= SPHASE_PENDING;
561 tdata->scsi_status =
562 ccb->csio.scsi_status;
563 }
564 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT)
565 tdata->target_phases |= NO_DISCONNECT;
566
567 tdata->initiator_tag = ccb->csio.tag_id;
568 }
569 if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID)
570 hscb->control |= ccb->csio.tag_action;
571
572 ahc_setup_data(ahc, sim, &ccb->csio, scb);
573 }
574 break;
575 }
576 case XPT_NOTIFY_ACKNOWLEDGE:
577 case XPT_IMMEDIATE_NOTIFY:
578 {
579 struct ahc_tmode_tstate *tstate;
580 struct ahc_tmode_lstate *lstate;
581 cam_status status;
582
583 status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate,
584 &lstate, TRUE);
585
586 if (status != CAM_REQ_CMP) {
587 ccb->ccb_h.status = status;
588 xpt_done(ccb);
589 break;
590 }
591 SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h,
592 sim_links.sle);
593 ccb->ccb_h.status = CAM_REQ_INPROG;
594 ahc_send_lstate_events(ahc, lstate);
595 break;
596 }
597 case XPT_EN_LUN: /* Enable LUN as a target */
598 ahc_handle_en_lun(ahc, sim, ccb);
599 xpt_done(ccb);
600 break;
601 case XPT_ABORT: /* Abort the specified CCB */
602 {
603 ahc_abort_ccb(ahc, sim, ccb);
604 break;
605 }
606 case XPT_SET_TRAN_SETTINGS:
607 {
608 struct ahc_devinfo devinfo;
609 struct ccb_trans_settings *cts;
610 struct ccb_trans_settings_scsi *scsi;
611 struct ccb_trans_settings_spi *spi;
612 struct ahc_initiator_tinfo *tinfo;
613 struct ahc_tmode_tstate *tstate;
614 uint16_t *discenable;
615 uint16_t *tagenable;
616 u_int update_type;
617
618 cts = &ccb->cts;
619 scsi = &cts->proto_specific.scsi;
620 spi = &cts->xport_specific.spi;
621 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim),
622 cts->ccb_h.target_id,
623 cts->ccb_h.target_lun,
624 SIM_CHANNEL(ahc, sim),
625 ROLE_UNKNOWN);
626 tinfo = ahc_fetch_transinfo(ahc, devinfo.channel,
627 devinfo.our_scsiid,
628 devinfo.target, &tstate);
629 update_type = 0;
630 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
631 update_type |= AHC_TRANS_GOAL;
632 discenable = &tstate->discenable;
633 tagenable = &tstate->tagenable;
634 tinfo->curr.protocol_version =
635 cts->protocol_version;
636 tinfo->curr.transport_version =
637 cts->transport_version;
638 tinfo->goal.protocol_version =
639 cts->protocol_version;
640 tinfo->goal.transport_version =
641 cts->transport_version;
642 } else if (cts->type == CTS_TYPE_USER_SETTINGS) {
643 update_type |= AHC_TRANS_USER;
644 discenable = &ahc->user_discenable;
645 tagenable = &ahc->user_tagenable;
646 tinfo->user.protocol_version =
647 cts->protocol_version;
648 tinfo->user.transport_version =
649 cts->transport_version;
650 } else {
651 ccb->ccb_h.status = CAM_REQ_INVALID;
652 xpt_done(ccb);
653 break;
654 }
655
656 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
657 if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0)
658 *discenable |= devinfo.target_mask;
659 else
660 *discenable &= ~devinfo.target_mask;
661 }
662
663 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
664 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0)
665 *tagenable |= devinfo.target_mask;
666 else
667 *tagenable &= ~devinfo.target_mask;
668 }
669
670 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
671 ahc_validate_width(ahc, /*tinfo limit*/NULL,
672 &spi->bus_width, ROLE_UNKNOWN);
673 ahc_set_width(ahc, &devinfo, spi->bus_width,
674 update_type, /*paused*/FALSE);
675 }
676
677 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) {
678 if (update_type == AHC_TRANS_USER)
679 spi->ppr_options = tinfo->user.ppr_options;
680 else
681 spi->ppr_options = tinfo->goal.ppr_options;
682 }
683
684 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) {
685 if (update_type == AHC_TRANS_USER)
686 spi->sync_offset = tinfo->user.offset;
687 else
688 spi->sync_offset = tinfo->goal.offset;
689 }
690
691 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) {
692 if (update_type == AHC_TRANS_USER)
693 spi->sync_period = tinfo->user.period;
694 else
695 spi->sync_period = tinfo->goal.period;
696 }
697
698 if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0)
699 || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) {
700 struct ahc_syncrate *syncrate;
701 u_int maxsync;
702
703 if ((ahc->features & AHC_ULTRA2) != 0)
704 maxsync = AHC_SYNCRATE_DT;
705 else if ((ahc->features & AHC_ULTRA) != 0)
706 maxsync = AHC_SYNCRATE_ULTRA;
707 else
708 maxsync = AHC_SYNCRATE_FAST;
709
710 if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT)
711 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ;
712
713 syncrate = ahc_find_syncrate(ahc, &spi->sync_period,
714 &spi->ppr_options,
715 maxsync);
716 ahc_validate_offset(ahc, /*tinfo limit*/NULL,
717 syncrate, &spi->sync_offset,
718 spi->bus_width, ROLE_UNKNOWN);
719
720 /* We use a period of 0 to represent async */
721 if (spi->sync_offset == 0) {
722 spi->sync_period = 0;
723 spi->ppr_options = 0;
724 }
725
726 ahc_set_syncrate(ahc, &devinfo, syncrate,
727 spi->sync_period, spi->sync_offset,
728 spi->ppr_options, update_type,
729 /*paused*/FALSE);
730 }
731 ccb->ccb_h.status = CAM_REQ_CMP;
732 xpt_done(ccb);
733 break;
734 }
735 case XPT_GET_TRAN_SETTINGS:
736 /* Get default/user set transfer settings for the target */
737 {
738 ahc_get_tran_settings(ahc, SIM_SCSI_ID(ahc, sim),
739 SIM_CHANNEL(ahc, sim), &ccb->cts);
740 xpt_done(ccb);
741 break;
742 }
743 case XPT_CALC_GEOMETRY:
744 {
745 int extended;
746
747 extended = SIM_IS_SCSIBUS_B(ahc, sim)
748 ? ahc->flags & AHC_EXTENDED_TRANS_B
749 : ahc->flags & AHC_EXTENDED_TRANS_A;
750 aic_calc_geometry(&ccb->ccg, extended);
751 xpt_done(ccb);
752 break;
753 }
754 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
755 {
756 int found;
757
758 found = ahc_reset_channel(ahc, SIM_CHANNEL(ahc, sim),
759 /*initiate reset*/TRUE);
760 if (bootverbose) {
761 xpt_print_path(SIM_PATH(ahc, sim));
762 printf("SCSI bus reset delivered. "
763 "%d SCBs aborted.\n", found);
764 }
765 ccb->ccb_h.status = CAM_REQ_CMP;
766 xpt_done(ccb);
767 break;
768 }
769 case XPT_TERM_IO: /* Terminate the I/O process */
770 /* XXX Implement */
771 ccb->ccb_h.status = CAM_REQ_INVALID;
772 xpt_done(ccb);
773 break;
774 case XPT_PATH_INQ: /* Path routing inquiry */
775 {
776 struct ccb_pathinq *cpi = &ccb->cpi;
777
778 cpi->version_num = 1; /* XXX??? */
779 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE;
780 if ((ahc->features & AHC_WIDE) != 0)
781 cpi->hba_inquiry |= PI_WIDE_16;
782 if ((ahc->features & AHC_TARGETMODE) != 0) {
783 cpi->target_sprt = PIT_PROCESSOR
784 | PIT_DISCONNECT
785 | PIT_TERM_IO;
786 } else {
787 cpi->target_sprt = 0;
788 }
789 cpi->hba_misc = 0;
790 cpi->hba_eng_cnt = 0;
791 cpi->max_target = (ahc->features & AHC_WIDE) ? 15 : 7;
792 cpi->max_lun = AHC_NUM_LUNS - 1;
793 if (SIM_IS_SCSIBUS_B(ahc, sim)) {
794 cpi->initiator_id = ahc->our_id_b;
795 if ((ahc->flags & AHC_RESET_BUS_B) == 0)
796 cpi->hba_misc |= PIM_NOBUSRESET;
797 } else {
798 cpi->initiator_id = ahc->our_id;
799 if ((ahc->flags & AHC_RESET_BUS_A) == 0)
800 cpi->hba_misc |= PIM_NOBUSRESET;
801 }
802 cpi->bus_id = cam_sim_bus(sim);
803 cpi->base_transfer_speed = 3300;
804 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
805 strlcpy(cpi->hba_vid, "Adaptec", HBA_IDLEN);
806 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
807 cpi->unit_number = cam_sim_unit(sim);
808 cpi->protocol = PROTO_SCSI;
809 cpi->protocol_version = SCSI_REV_2;
810 cpi->transport = XPORT_SPI;
811 cpi->transport_version = 2;
812 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_ST;
813 if ((ahc->features & AHC_DT) != 0) {
814 cpi->transport_version = 3;
815 cpi->xport_specific.spi.ppr_options =
816 SID_SPI_CLOCK_DT_ST;
817 }
818 cpi->ccb_h.status = CAM_REQ_CMP;
819 xpt_done(ccb);
820 break;
821 }
822 default:
823 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
824 xpt_done(ccb);
825 break;
826 }
827 }
828
829 static void
ahc_get_tran_settings(struct ahc_softc * ahc,int our_id,char channel,struct ccb_trans_settings * cts)830 ahc_get_tran_settings(struct ahc_softc *ahc, int our_id, char channel,
831 struct ccb_trans_settings *cts)
832 {
833 struct ahc_devinfo devinfo;
834 struct ccb_trans_settings_scsi *scsi;
835 struct ccb_trans_settings_spi *spi;
836 struct ahc_initiator_tinfo *targ_info;
837 struct ahc_tmode_tstate *tstate;
838 struct ahc_transinfo *tinfo;
839
840 scsi = &cts->proto_specific.scsi;
841 spi = &cts->xport_specific.spi;
842 ahc_compile_devinfo(&devinfo, our_id,
843 cts->ccb_h.target_id,
844 cts->ccb_h.target_lun,
845 channel, ROLE_UNKNOWN);
846 targ_info = ahc_fetch_transinfo(ahc, devinfo.channel,
847 devinfo.our_scsiid,
848 devinfo.target, &tstate);
849
850 if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
851 tinfo = &targ_info->curr;
852 else
853 tinfo = &targ_info->user;
854
855 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
856 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB;
857 if (cts->type == CTS_TYPE_USER_SETTINGS) {
858 if ((ahc->user_discenable & devinfo.target_mask) != 0)
859 spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
860
861 if ((ahc->user_tagenable & devinfo.target_mask) != 0)
862 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
863 } else {
864 if ((tstate->discenable & devinfo.target_mask) != 0)
865 spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
866
867 if ((tstate->tagenable & devinfo.target_mask) != 0)
868 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
869 }
870 cts->protocol_version = tinfo->protocol_version;
871 cts->transport_version = tinfo->transport_version;
872
873 spi->sync_period = tinfo->period;
874 spi->sync_offset = tinfo->offset;
875 spi->bus_width = tinfo->width;
876 spi->ppr_options = tinfo->ppr_options;
877
878 cts->protocol = PROTO_SCSI;
879 cts->transport = XPORT_SPI;
880 spi->valid = CTS_SPI_VALID_SYNC_RATE
881 | CTS_SPI_VALID_SYNC_OFFSET
882 | CTS_SPI_VALID_BUS_WIDTH
883 | CTS_SPI_VALID_PPR_OPTIONS;
884
885 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
886 scsi->valid = CTS_SCSI_VALID_TQ;
887 spi->valid |= CTS_SPI_VALID_DISC;
888 } else {
889 scsi->valid = 0;
890 }
891
892 cts->ccb_h.status = CAM_REQ_CMP;
893 }
894
895 static void
ahc_async(void * callback_arg,uint32_t code,struct cam_path * path,void * arg)896 ahc_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg)
897 {
898 struct ahc_softc *ahc;
899 struct cam_sim *sim;
900
901 sim = (struct cam_sim *)callback_arg;
902 ahc = (struct ahc_softc *)cam_sim_softc(sim);
903 switch (code) {
904 case AC_LOST_DEVICE:
905 {
906 struct ahc_devinfo devinfo;
907
908 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim),
909 xpt_path_target_id(path),
910 xpt_path_lun_id(path),
911 SIM_CHANNEL(ahc, sim),
912 ROLE_UNKNOWN);
913
914 /*
915 * Revert to async/narrow transfers
916 * for the next device.
917 */
918 ahc_set_width(ahc, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
919 AHC_TRANS_GOAL|AHC_TRANS_CUR, /*paused*/FALSE);
920 ahc_set_syncrate(ahc, &devinfo, /*syncrate*/NULL,
921 /*period*/0, /*offset*/0, /*ppr_options*/0,
922 AHC_TRANS_GOAL|AHC_TRANS_CUR,
923 /*paused*/FALSE);
924 break;
925 }
926 default:
927 break;
928 }
929 }
930
931 static void
ahc_execute_scb(void * arg,bus_dma_segment_t * dm_segs,int nsegments,int error)932 ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments,
933 int error)
934 {
935 struct scb *scb;
936 union ccb *ccb;
937 struct ahc_softc *ahc;
938 struct ahc_initiator_tinfo *tinfo;
939 struct ahc_tmode_tstate *tstate;
940 u_int mask;
941
942 scb = (struct scb *)arg;
943 ccb = scb->io_ctx;
944 ahc = scb->ahc_softc;
945
946 if (error != 0) {
947 if (error == EFBIG)
948 aic_set_transaction_status(scb, CAM_REQ_TOO_BIG);
949 else
950 aic_set_transaction_status(scb, CAM_REQ_CMP_ERR);
951 if (nsegments != 0)
952 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap);
953 ahc_free_scb(ahc, scb);
954 xpt_done(ccb);
955 return;
956 }
957 if (nsegments != 0) {
958 struct ahc_dma_seg *sg;
959 bus_dma_segment_t *end_seg;
960
961 end_seg = dm_segs + nsegments;
962
963 /* Copy the segments into our SG list */
964 sg = scb->sg_list;
965 while (dm_segs < end_seg) {
966 uint32_t len;
967
968 sg->addr = aic_htole32(dm_segs->ds_addr);
969 len = dm_segs->ds_len
970 | ((dm_segs->ds_addr >> 8) & 0x7F000000);
971 sg->len = aic_htole32(len);
972 sg++;
973 dm_segs++;
974 }
975
976 /*
977 * Note where to find the SG entries in bus space.
978 * We also set the full residual flag which the
979 * sequencer will clear as soon as a data transfer
980 * occurs.
981 */
982 scb->hscb->sgptr = aic_htole32(scb->sg_list_phys|SG_FULL_RESID);
983
984 ahc_sync_ccb(ahc, scb, ccb, false);
985
986 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
987 struct target_data *tdata;
988
989 tdata = &scb->hscb->shared_data.tdata;
990 tdata->target_phases |= DPHASE_PENDING;
991 /*
992 * CAM data direction is relative to the initiator.
993 */
994 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
995 tdata->data_phase = P_DATAOUT;
996 else
997 tdata->data_phase = P_DATAIN;
998
999 /*
1000 * If the transfer is of an odd length and in the
1001 * "in" direction (scsi->HostBus), then it may
1002 * trigger a bug in the 'WideODD' feature of
1003 * non-Ultra2 chips. Force the total data-length
1004 * to be even by adding an extra, 1 byte, SG,
1005 * element. We do this even if we are not currently
1006 * negotiated wide as negotiation could occur before
1007 * this command is executed.
1008 */
1009 if ((ahc->bugs & AHC_TMODE_WIDEODD_BUG) != 0
1010 && (ccb->csio.dxfer_len & 0x1) != 0
1011 && (ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1012 nsegments++;
1013 if (nsegments > AHC_NSEG) {
1014 aic_set_transaction_status(scb,
1015 CAM_REQ_TOO_BIG);
1016 bus_dmamap_unload(ahc->buffer_dmat,
1017 scb->dmamap);
1018 ahc_free_scb(ahc, scb);
1019 xpt_done(ccb);
1020 return;
1021 }
1022 sg->addr = aic_htole32(ahc->dma_bug_buf);
1023 sg->len = aic_htole32(1);
1024 sg++;
1025 }
1026 }
1027 sg--;
1028 sg->len |= aic_htole32(AHC_DMA_LAST_SEG);
1029
1030 /* Copy the first SG into the "current" data pointer area */
1031 scb->hscb->dataptr = scb->sg_list->addr;
1032 scb->hscb->datacnt = scb->sg_list->len;
1033 } else {
1034 scb->hscb->sgptr = aic_htole32(SG_LIST_NULL);
1035 scb->hscb->dataptr = 0;
1036 scb->hscb->datacnt = 0;
1037 }
1038
1039 scb->sg_count = nsegments;
1040
1041 /*
1042 * Last time we need to check if this SCB needs to
1043 * be aborted.
1044 */
1045 if (aic_get_transaction_status(scb) != CAM_REQ_INPROG) {
1046 if (nsegments != 0)
1047 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap);
1048 ahc_free_scb(ahc, scb);
1049 xpt_done(ccb);
1050 return;
1051 }
1052
1053 tinfo = ahc_fetch_transinfo(ahc, SCSIID_CHANNEL(ahc, scb->hscb->scsiid),
1054 SCSIID_OUR_ID(scb->hscb->scsiid),
1055 SCSIID_TARGET(ahc, scb->hscb->scsiid),
1056 &tstate);
1057
1058 mask = SCB_GET_TARGET_MASK(ahc, scb);
1059 scb->hscb->scsirate = tinfo->scsirate;
1060 scb->hscb->scsioffset = tinfo->curr.offset;
1061 if ((tstate->ultraenb & mask) != 0)
1062 scb->hscb->control |= ULTRAENB;
1063
1064 if ((tstate->discenable & mask) != 0
1065 && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0)
1066 scb->hscb->control |= DISCENB;
1067
1068 if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0
1069 && (tinfo->goal.width != 0
1070 || tinfo->goal.offset != 0
1071 || tinfo->goal.ppr_options != 0)) {
1072 scb->flags |= SCB_NEGOTIATE;
1073 scb->hscb->control |= MK_MESSAGE;
1074 } else if ((tstate->auto_negotiate & mask) != 0) {
1075 scb->flags |= SCB_AUTO_NEGOTIATE;
1076 scb->hscb->control |= MK_MESSAGE;
1077 }
1078
1079 LIST_INSERT_HEAD(&ahc->pending_scbs, scb, pending_links);
1080
1081 ccb->ccb_h.status |= CAM_SIM_QUEUED;
1082
1083 /*
1084 * We only allow one untagged transaction
1085 * per target in the initiator role unless
1086 * we are storing a full busy target *lun*
1087 * table in SCB space.
1088 */
1089 if ((scb->hscb->control & (TARGET_SCB|TAG_ENB)) == 0
1090 && (ahc->flags & AHC_SCB_BTT) == 0) {
1091 struct scb_tailq *untagged_q;
1092 int target_offset;
1093
1094 target_offset = SCB_GET_TARGET_OFFSET(ahc, scb);
1095 untagged_q = &(ahc->untagged_queues[target_offset]);
1096 TAILQ_INSERT_TAIL(untagged_q, scb, links.tqe);
1097 scb->flags |= SCB_UNTAGGEDQ;
1098 if (TAILQ_FIRST(untagged_q) != scb) {
1099 return;
1100 }
1101 }
1102 scb->flags |= SCB_ACTIVE;
1103
1104 /*
1105 * Timers are disabled while recovery is in progress.
1106 */
1107 aic_scb_timer_start(scb);
1108
1109 if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) {
1110 /* Define a mapping from our tag to the SCB. */
1111 ahc->scb_data->scbindex[scb->hscb->tag] = scb;
1112 ahc_pause(ahc);
1113 if ((ahc->flags & AHC_PAGESCBS) == 0)
1114 ahc_outb(ahc, SCBPTR, scb->hscb->tag);
1115 ahc_outb(ahc, TARG_IMMEDIATE_SCB, scb->hscb->tag);
1116 ahc_unpause(ahc);
1117 } else {
1118 ahc_queue_scb(ahc, scb);
1119 }
1120 }
1121
1122 static void
ahc_poll(struct cam_sim * sim)1123 ahc_poll(struct cam_sim *sim)
1124 {
1125 struct ahc_softc *ahc;
1126
1127 ahc = (struct ahc_softc *)cam_sim_softc(sim);
1128 ahc_intr(ahc);
1129 }
1130
1131 static void
ahc_setup_data(struct ahc_softc * ahc,struct cam_sim * sim,struct ccb_scsiio * csio,struct scb * scb)1132 ahc_setup_data(struct ahc_softc *ahc, struct cam_sim *sim,
1133 struct ccb_scsiio *csio, struct scb *scb)
1134 {
1135 struct hardware_scb *hscb;
1136 struct ccb_hdr *ccb_h;
1137 int error;
1138
1139 hscb = scb->hscb;
1140 ccb_h = &csio->ccb_h;
1141
1142 csio->resid = 0;
1143 csio->sense_resid = 0;
1144 if (ccb_h->func_code == XPT_SCSI_IO) {
1145 hscb->cdb_len = csio->cdb_len;
1146 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) {
1147 if (hscb->cdb_len > sizeof(hscb->cdb32)
1148 || (ccb_h->flags & CAM_CDB_PHYS) != 0) {
1149 aic_set_transaction_status(scb,
1150 CAM_REQ_INVALID);
1151 ahc_free_scb(ahc, scb);
1152 xpt_done((union ccb *)csio);
1153 return;
1154 }
1155 if (hscb->cdb_len > 12) {
1156 memcpy(hscb->cdb32,
1157 csio->cdb_io.cdb_ptr,
1158 hscb->cdb_len);
1159 scb->flags |= SCB_CDB32_PTR;
1160 } else {
1161 memcpy(hscb->shared_data.cdb,
1162 csio->cdb_io.cdb_ptr,
1163 hscb->cdb_len);
1164 }
1165 } else {
1166 if (hscb->cdb_len > 12) {
1167 memcpy(hscb->cdb32, csio->cdb_io.cdb_bytes,
1168 hscb->cdb_len);
1169 scb->flags |= SCB_CDB32_PTR;
1170 } else {
1171 memcpy(hscb->shared_data.cdb,
1172 csio->cdb_io.cdb_bytes,
1173 hscb->cdb_len);
1174 }
1175 }
1176 }
1177
1178 error = bus_dmamap_load_ccb(ahc->buffer_dmat,
1179 scb->dmamap,
1180 (union ccb *)csio,
1181 ahc_execute_scb,
1182 scb,
1183 0);
1184 if (error == EINPROGRESS) {
1185 /*
1186 * So as to maintain ordering,
1187 * freeze the controller queue
1188 * until our mapping is
1189 * returned.
1190 */
1191 xpt_freeze_simq(sim, /*count*/1);
1192 scb->io_ctx->ccb_h.status |= CAM_RELEASE_SIMQ;
1193 }
1194 }
1195
1196 static void
ahc_abort_ccb(struct ahc_softc * ahc,struct cam_sim * sim,union ccb * ccb)1197 ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim, union ccb *ccb)
1198 {
1199 union ccb *abort_ccb;
1200
1201 abort_ccb = ccb->cab.abort_ccb;
1202 switch (abort_ccb->ccb_h.func_code) {
1203 case XPT_ACCEPT_TARGET_IO:
1204 case XPT_IMMEDIATE_NOTIFY:
1205 case XPT_CONT_TARGET_IO:
1206 {
1207 struct ahc_tmode_tstate *tstate;
1208 struct ahc_tmode_lstate *lstate;
1209 struct ccb_hdr_slist *list;
1210 cam_status status;
1211
1212 status = ahc_find_tmode_devs(ahc, sim, abort_ccb, &tstate,
1213 &lstate, TRUE);
1214
1215 if (status != CAM_REQ_CMP) {
1216 ccb->ccb_h.status = status;
1217 break;
1218 }
1219
1220 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO)
1221 list = &lstate->accept_tios;
1222 else if (abort_ccb->ccb_h.func_code == XPT_IMMEDIATE_NOTIFY)
1223 list = &lstate->immed_notifies;
1224 else
1225 list = NULL;
1226
1227 if (list != NULL) {
1228 struct ccb_hdr *curelm;
1229 int found;
1230
1231 curelm = SLIST_FIRST(list);
1232 found = 0;
1233 if (curelm == &abort_ccb->ccb_h) {
1234 found = 1;
1235 SLIST_REMOVE_HEAD(list, sim_links.sle);
1236 } else {
1237 while(curelm != NULL) {
1238 struct ccb_hdr *nextelm;
1239
1240 nextelm =
1241 SLIST_NEXT(curelm, sim_links.sle);
1242
1243 if (nextelm == &abort_ccb->ccb_h) {
1244 found = 1;
1245 SLIST_NEXT(curelm,
1246 sim_links.sle) =
1247 SLIST_NEXT(nextelm,
1248 sim_links.sle);
1249 break;
1250 }
1251 curelm = nextelm;
1252 }
1253 }
1254
1255 if (found) {
1256 abort_ccb->ccb_h.status = CAM_REQ_ABORTED;
1257 xpt_done(abort_ccb);
1258 ccb->ccb_h.status = CAM_REQ_CMP;
1259 } else {
1260 xpt_print_path(abort_ccb->ccb_h.path);
1261 printf("Not found\n");
1262 ccb->ccb_h.status = CAM_PATH_INVALID;
1263 }
1264 break;
1265 }
1266 /* FALLTHROUGH */
1267 }
1268 case XPT_SCSI_IO:
1269 /* XXX Fully implement the hard ones */
1270 ccb->ccb_h.status = CAM_UA_ABORT;
1271 break;
1272 default:
1273 ccb->ccb_h.status = CAM_REQ_INVALID;
1274 break;
1275 }
1276 xpt_done(ccb);
1277 }
1278
1279 void
ahc_send_async(struct ahc_softc * ahc,char channel,u_int target,u_int lun,ac_code code,void * opt_arg)1280 ahc_send_async(struct ahc_softc *ahc, char channel, u_int target,
1281 u_int lun, ac_code code, void *opt_arg)
1282 {
1283 struct ccb_trans_settings cts;
1284 struct cam_path *path;
1285 void *arg;
1286 int error;
1287
1288 arg = NULL;
1289 error = ahc_create_path(ahc, channel, target, lun, &path);
1290
1291 if (error != CAM_REQ_CMP)
1292 return;
1293
1294 switch (code) {
1295 case AC_TRANSFER_NEG:
1296 {
1297 struct ccb_trans_settings_scsi *scsi;
1298
1299 cts.type = CTS_TYPE_CURRENT_SETTINGS;
1300 scsi = &cts.proto_specific.scsi;
1301 cts.ccb_h.path = path;
1302 cts.ccb_h.target_id = target;
1303 cts.ccb_h.target_lun = lun;
1304 ahc_get_tran_settings(ahc, channel == 'A' ? ahc->our_id
1305 : ahc->our_id_b,
1306 channel, &cts);
1307 arg = &cts;
1308 scsi->valid &= ~CTS_SCSI_VALID_TQ;
1309 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
1310 if (opt_arg == NULL)
1311 break;
1312 if (*((ahc_queue_alg *)opt_arg) == AHC_QUEUE_TAGGED)
1313 scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB;
1314 scsi->valid |= CTS_SCSI_VALID_TQ;
1315 break;
1316 }
1317 case AC_SENT_BDR:
1318 case AC_BUS_RESET:
1319 break;
1320 default:
1321 panic("ahc_send_async: Unexpected async event");
1322 }
1323 xpt_async(code, path, arg);
1324 xpt_free_path(path);
1325 }
1326
1327 void
ahc_platform_set_tags(struct ahc_softc * ahc,struct ahc_devinfo * devinfo,int enable)1328 ahc_platform_set_tags(struct ahc_softc *ahc,
1329 struct ahc_devinfo *devinfo, int enable)
1330 {
1331 }
1332
1333 int
ahc_platform_alloc(struct ahc_softc * ahc,void * platform_arg)1334 ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg)
1335 {
1336 ahc->platform_data = malloc(sizeof(struct ahc_platform_data), M_DEVBUF,
1337 M_NOWAIT | M_ZERO);
1338 if (ahc->platform_data == NULL)
1339 return (ENOMEM);
1340 return (0);
1341 }
1342
1343 void
ahc_platform_free(struct ahc_softc * ahc)1344 ahc_platform_free(struct ahc_softc *ahc)
1345 {
1346 struct ahc_platform_data *pdata;
1347
1348 pdata = ahc->platform_data;
1349 if (pdata != NULL) {
1350 if (pdata->regs != NULL)
1351 bus_release_resource(ahc->dev_softc,
1352 pdata->regs_res_type,
1353 pdata->regs_res_id,
1354 pdata->regs);
1355
1356 if (pdata->irq != NULL)
1357 bus_release_resource(ahc->dev_softc,
1358 pdata->irq_res_type,
1359 0, pdata->irq);
1360
1361 if (pdata->sim_b != NULL) {
1362 xpt_async(AC_LOST_DEVICE, pdata->path_b, NULL);
1363 xpt_free_path(pdata->path_b);
1364 xpt_bus_deregister(cam_sim_path(pdata->sim_b));
1365 cam_sim_free(pdata->sim_b, /*free_devq*/TRUE);
1366 }
1367 if (pdata->sim != NULL) {
1368 xpt_async(AC_LOST_DEVICE, pdata->path, NULL);
1369 xpt_free_path(pdata->path);
1370 xpt_bus_deregister(cam_sim_path(pdata->sim));
1371 cam_sim_free(pdata->sim, /*free_devq*/TRUE);
1372 }
1373 if (pdata->eh != NULL)
1374 EVENTHANDLER_DEREGISTER(shutdown_final, pdata->eh);
1375 free(ahc->platform_data, M_DEVBUF);
1376 }
1377 }
1378
1379 int
ahc_softc_comp(struct ahc_softc * lahc,struct ahc_softc * rahc)1380 ahc_softc_comp(struct ahc_softc *lahc, struct ahc_softc *rahc)
1381 {
1382 /* We don't sort softcs under FreeBSD so report equal always */
1383 return (0);
1384 }
1385
1386 int
ahc_detach(device_t dev)1387 ahc_detach(device_t dev)
1388 {
1389 struct ahc_softc *ahc;
1390
1391 device_printf(dev, "detaching device\n");
1392 ahc = device_get_softc(dev);
1393 ahc_lock(ahc);
1394 TAILQ_REMOVE(&ahc_tailq, ahc, links);
1395 ahc_intr_enable(ahc, FALSE);
1396 bus_teardown_intr(dev, ahc->platform_data->irq, ahc->platform_data->ih);
1397 ahc_unlock(ahc);
1398 ahc_free(ahc);
1399 return (0);
1400 }
1401
1402 #if 0
1403 static void
1404 ahc_dump_targcmd(struct target_cmd *cmd)
1405 {
1406 uint8_t *byte;
1407 uint8_t *last_byte;
1408 int i;
1409
1410 byte = &cmd->initiator_channel;
1411 /* Debugging info for received commands */
1412 last_byte = &cmd[1].initiator_channel;
1413
1414 i = 0;
1415 while (byte < last_byte) {
1416 if (i == 0)
1417 printf("\t");
1418 printf("%#x", *byte++);
1419 i++;
1420 if (i == 8) {
1421 printf("\n");
1422 i = 0;
1423 } else {
1424 printf(", ");
1425 }
1426 }
1427 }
1428 #endif
1429
1430 static int
ahc_modevent(module_t mod,int type,void * data)1431 ahc_modevent(module_t mod, int type, void *data)
1432 {
1433 /* XXX Deal with busy status on unload. */
1434 /* XXX Deal with unknown events */
1435 return 0;
1436 }
1437
1438 static moduledata_t ahc_mod = {
1439 "ahc",
1440 ahc_modevent,
1441 NULL
1442 };
1443
1444 DECLARE_MODULE(ahc, ahc_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
1445 MODULE_DEPEND(ahc, cam, 1, 1, 1);
1446 MODULE_VERSION(ahc, 1);
1447