1 /*-
2 * Bus independent FreeBSD shim for the aic79xx based Adaptec SCSI controllers
3 *
4 * Copyright (c) 1994-2002, 2004 Justin T. Gibbs.
5 * Copyright (c) 2001-2002 Adaptec Inc.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions, and the following disclaimer,
13 * without modification.
14 * 2. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * Alternatively, this software may be distributed under the terms of the
18 * GNU Public License ("GPL").
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
24 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * $Id: //depot/aic7xxx/freebsd/dev/aic7xxx/aic79xx_osm.c#35 $
33 */
34
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
37
38 #include <dev/aic7xxx/aic79xx_osm.h>
39 #include <dev/aic7xxx/aic79xx_inline.h>
40
41 #include <sys/kthread.h>
42
43 #include "opt_ddb.h"
44 #ifdef DDB
45 #include <ddb/ddb.h>
46 #endif
47
48 #ifndef AHD_TMODE_ENABLE
49 #define AHD_TMODE_ENABLE 0
50 #endif
51
52 #include <dev/aic7xxx/aic_osm_lib.c>
53
54 #define ccb_scb_ptr spriv_ptr0
55
56 #if 0
57 static void ahd_dump_targcmd(struct target_cmd *cmd);
58 #endif
59 static int ahd_modevent(module_t mod, int type, void *data);
60 static void ahd_action(struct cam_sim *sim, union ccb *ccb);
61 static void ahd_set_tran_settings(struct ahd_softc *ahd,
62 int our_id, char channel,
63 struct ccb_trans_settings *cts);
64 static void ahd_get_tran_settings(struct ahd_softc *ahd,
65 int our_id, char channel,
66 struct ccb_trans_settings *cts);
67 static void ahd_async(void *callback_arg, uint32_t code,
68 struct cam_path *path, void *arg);
69 static void ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs,
70 int nsegments, int error);
71 static void ahd_poll(struct cam_sim *sim);
72 static void ahd_setup_data(struct ahd_softc *ahd, struct cam_sim *sim,
73 struct ccb_scsiio *csio, struct scb *scb);
74 static void ahd_abort_ccb(struct ahd_softc *ahd, struct cam_sim *sim,
75 union ccb *ccb);
76 static int ahd_create_path(struct ahd_softc *ahd,
77 char channel, u_int target, u_int lun,
78 struct cam_path **path);
79
80 static const char *ahd_sysctl_node_elements[] = {
81 "root",
82 "summary",
83 "debug"
84 };
85
86 #ifndef NO_SYSCTL_DESCR
87 static const char *ahd_sysctl_node_descriptions[] = {
88 "root error collection for aic79xx controllers",
89 "summary collection for aic79xx controllers",
90 "debug collection for aic79xx controllers"
91 };
92 #endif
93
94 static const char *ahd_sysctl_errors_elements[] = {
95 "Cerrors",
96 "Uerrors",
97 "Ferrors"
98 };
99
100 #ifndef NO_SYSCTL_DESCR
101 static const char *ahd_sysctl_errors_descriptions[] = {
102 "Correctable errors",
103 "Uncorrectable errors",
104 "Fatal errors"
105 };
106 #endif
107
108 static int
ahd_set_debugcounters(SYSCTL_HANDLER_ARGS)109 ahd_set_debugcounters(SYSCTL_HANDLER_ARGS)
110 {
111 struct ahd_softc *sc;
112 int error, tmpv;
113
114 tmpv = 0;
115 sc = arg1;
116 error = sysctl_handle_int(oidp, &tmpv, 0, req);
117 if (error != 0 || req->newptr == NULL)
118 return (error);
119 if (tmpv < 0 || tmpv >= AHD_ERRORS_NUMBER)
120 return (EINVAL);
121 sc->summerr[arg2] = tmpv;
122 return (0);
123 }
124
125 static int
ahd_clear_allcounters(SYSCTL_HANDLER_ARGS)126 ahd_clear_allcounters(SYSCTL_HANDLER_ARGS)
127 {
128 struct ahd_softc *sc;
129 int error, tmpv;
130
131 tmpv = 0;
132 sc = arg1;
133 error = sysctl_handle_int(oidp, &tmpv, 0, req);
134 if (error != 0 || req->newptr == NULL)
135 return (error);
136 if (tmpv != 0)
137 bzero(sc->summerr, sizeof(sc->summerr));
138 return (0);
139 }
140
141 static int
ahd_create_path(struct ahd_softc * ahd,char channel,u_int target,u_int lun,struct cam_path ** path)142 ahd_create_path(struct ahd_softc *ahd, char channel, u_int target,
143 u_int lun, struct cam_path **path)
144 {
145 path_id_t path_id;
146
147 path_id = cam_sim_path(ahd->platform_data->sim);
148 return (xpt_create_path(path, /*periph*/NULL,
149 path_id, target, lun));
150 }
151
152 void
ahd_sysctl(struct ahd_softc * ahd)153 ahd_sysctl(struct ahd_softc *ahd)
154 {
155 u_int i;
156
157 for (i = 0; i < AHD_SYSCTL_NUMBER; i++)
158 sysctl_ctx_init(&ahd->sysctl_ctx[i]);
159
160 ahd->sysctl_tree[AHD_SYSCTL_ROOT] =
161 SYSCTL_ADD_NODE(&ahd->sysctl_ctx[AHD_SYSCTL_ROOT],
162 SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO,
163 device_get_nameunit(ahd->dev_softc), CTLFLAG_RD, 0,
164 ahd_sysctl_node_descriptions[AHD_SYSCTL_ROOT]);
165 SYSCTL_ADD_PROC(&ahd->sysctl_ctx[AHD_SYSCTL_ROOT],
166 SYSCTL_CHILDREN(ahd->sysctl_tree[AHD_SYSCTL_ROOT]),
167 OID_AUTO, "clear", CTLTYPE_UINT | CTLFLAG_RW, ahd,
168 0, ahd_clear_allcounters, "IU",
169 "Clear all counters");
170
171 for (i = AHD_SYSCTL_SUMMARY; i < AHD_SYSCTL_NUMBER; i++)
172 ahd->sysctl_tree[i] =
173 SYSCTL_ADD_NODE(&ahd->sysctl_ctx[i],
174 SYSCTL_CHILDREN(ahd->sysctl_tree[AHD_SYSCTL_ROOT]),
175 OID_AUTO, ahd_sysctl_node_elements[i],
176 CTLFLAG_RD, 0,
177 ahd_sysctl_node_descriptions[i]);
178
179 for (i = AHD_ERRORS_CORRECTABLE; i < AHD_ERRORS_NUMBER; i++) {
180 SYSCTL_ADD_UINT(&ahd->sysctl_ctx[AHD_SYSCTL_SUMMARY],
181 SYSCTL_CHILDREN(ahd->sysctl_tree[AHD_SYSCTL_SUMMARY]),
182 OID_AUTO, ahd_sysctl_errors_elements[i],
183 CTLFLAG_RD, &ahd->summerr[i], i,
184 ahd_sysctl_errors_descriptions[i]);
185 SYSCTL_ADD_PROC(&ahd->sysctl_ctx[AHD_SYSCTL_DEBUG],
186 SYSCTL_CHILDREN(ahd->sysctl_tree[AHD_SYSCTL_DEBUG]),
187 OID_AUTO, ahd_sysctl_errors_elements[i],
188 CTLFLAG_RW | CTLTYPE_UINT, ahd, i,
189 ahd_set_debugcounters, "IU",
190 ahd_sysctl_errors_descriptions[i]);
191 }
192 }
193
194 int
ahd_map_int(struct ahd_softc * ahd)195 ahd_map_int(struct ahd_softc *ahd)
196 {
197 int error;
198
199 /* Hook up our interrupt handler */
200 error = bus_setup_intr(ahd->dev_softc, ahd->platform_data->irq,
201 INTR_TYPE_CAM|INTR_MPSAFE, NULL,
202 ahd_platform_intr, ahd, &ahd->platform_data->ih);
203 if (error != 0)
204 device_printf(ahd->dev_softc, "bus_setup_intr() failed: %d\n",
205 error);
206 return (error);
207 }
208
209 /*
210 * Attach all the sub-devices we can find
211 */
212 int
ahd_attach(struct ahd_softc * ahd)213 ahd_attach(struct ahd_softc *ahd)
214 {
215 char ahd_info[256];
216 struct ccb_setasync csa;
217 struct cam_devq *devq;
218 struct cam_sim *sim;
219 struct cam_path *path;
220 int count;
221
222 count = 0;
223 devq = NULL;
224 sim = NULL;
225 path = NULL;
226
227 /*
228 * Create a thread to perform all recovery.
229 */
230 if (ahd_spawn_recovery_thread(ahd) != 0)
231 goto fail;
232
233 ahd_controller_info(ahd, ahd_info);
234 printf("%s\n", ahd_info);
235 ahd_lock(ahd);
236
237 /*
238 * Create the device queue for our SIM(s).
239 */
240 devq = cam_simq_alloc(AHD_MAX_QUEUE);
241 if (devq == NULL)
242 goto fail;
243
244 /*
245 * Construct our SIM entry
246 */
247 sim = cam_sim_alloc(ahd_action, ahd_poll, "ahd", ahd,
248 device_get_unit(ahd->dev_softc),
249 &ahd->platform_data->mtx, 1, /*XXX*/256, devq);
250 if (sim == NULL) {
251 cam_simq_free(devq);
252 goto fail;
253 }
254
255 if (xpt_bus_register(sim, ahd->dev_softc, /*bus_id*/0) != CAM_SUCCESS) {
256 cam_sim_free(sim, /*free_devq*/TRUE);
257 sim = NULL;
258 goto fail;
259 }
260
261 if (xpt_create_path(&path, /*periph*/NULL,
262 cam_sim_path(sim), CAM_TARGET_WILDCARD,
263 CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
264 xpt_bus_deregister(cam_sim_path(sim));
265 cam_sim_free(sim, /*free_devq*/TRUE);
266 sim = NULL;
267 goto fail;
268 }
269
270 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
271 csa.ccb_h.func_code = XPT_SASYNC_CB;
272 csa.event_enable = AC_LOST_DEVICE;
273 csa.callback = ahd_async;
274 csa.callback_arg = sim;
275 xpt_action((union ccb *)&csa);
276 count++;
277
278 fail:
279 ahd->platform_data->sim = sim;
280 ahd->platform_data->path = path;
281 ahd_unlock(ahd);
282 if (count != 0) {
283 /* We have to wait until after any system dumps... */
284 ahd->platform_data->eh =
285 EVENTHANDLER_REGISTER(shutdown_final, ahd_shutdown,
286 ahd, SHUTDOWN_PRI_DEFAULT);
287 ahd_intr_enable(ahd, TRUE);
288 }
289
290
291 return (count);
292 }
293
294 /*
295 * Catch an interrupt from the adapter
296 */
297 void
ahd_platform_intr(void * arg)298 ahd_platform_intr(void *arg)
299 {
300 struct ahd_softc *ahd;
301
302 ahd = (struct ahd_softc *)arg;
303 ahd_lock(ahd);
304 ahd_intr(ahd);
305 ahd_unlock(ahd);
306 }
307
308 /*
309 * We have an scb which has been processed by the
310 * adaptor, now we look to see how the operation
311 * went.
312 */
313 void
ahd_done(struct ahd_softc * ahd,struct scb * scb)314 ahd_done(struct ahd_softc *ahd, struct scb *scb)
315 {
316 union ccb *ccb;
317
318 CAM_DEBUG(scb->io_ctx->ccb_h.path, CAM_DEBUG_TRACE,
319 ("ahd_done - scb %d\n", SCB_GET_TAG(scb)));
320
321 ccb = scb->io_ctx;
322 LIST_REMOVE(scb, pending_links);
323 if ((scb->flags & SCB_TIMEDOUT) != 0)
324 LIST_REMOVE(scb, timedout_links);
325
326 callout_stop(&scb->io_timer);
327
328 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
329 bus_dmasync_op_t op;
330
331 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
332 op = BUS_DMASYNC_POSTREAD;
333 else
334 op = BUS_DMASYNC_POSTWRITE;
335 bus_dmamap_sync(ahd->buffer_dmat, scb->dmamap, op);
336 bus_dmamap_unload(ahd->buffer_dmat, scb->dmamap);
337 }
338
339 #ifdef AHD_TARGET_MODE
340 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
341 struct cam_path *ccb_path;
342
343 /*
344 * If we have finally disconnected, clean up our
345 * pending device state.
346 * XXX - There may be error states that cause where
347 * we will remain connected.
348 */
349 ccb_path = ccb->ccb_h.path;
350 if (ahd->pending_device != NULL
351 && xpt_path_comp(ahd->pending_device->path, ccb_path) == 0) {
352
353 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
354 ahd->pending_device = NULL;
355 } else {
356 xpt_print_path(ccb->ccb_h.path);
357 printf("Still disconnected\n");
358 ahd_freeze_ccb(ccb);
359 }
360 }
361
362 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG)
363 ccb->ccb_h.status |= CAM_REQ_CMP;
364 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
365 ahd_free_scb(ahd, scb);
366 xpt_done(ccb);
367 return;
368 }
369 #endif
370
371 if ((scb->flags & SCB_RECOVERY_SCB) != 0) {
372 struct scb *list_scb;
373
374 ahd->scb_data.recovery_scbs--;
375
376 if (aic_get_transaction_status(scb) == CAM_BDR_SENT
377 || aic_get_transaction_status(scb) == CAM_REQ_ABORTED)
378 aic_set_transaction_status(scb, CAM_CMD_TIMEOUT);
379
380 if (ahd->scb_data.recovery_scbs == 0) {
381 /*
382 * All recovery actions have completed successfully,
383 * so reinstate the timeouts for all other pending
384 * commands.
385 */
386 LIST_FOREACH(list_scb,
387 &ahd->pending_scbs, pending_links) {
388
389 aic_scb_timer_reset(list_scb,
390 aic_get_timeout(scb));
391 }
392
393 ahd_print_path(ahd, scb);
394 printf("no longer in timeout, status = %x\n",
395 ccb->ccb_h.status);
396 }
397 }
398
399 /* Don't clobber any existing error state */
400 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) {
401 ccb->ccb_h.status |= CAM_REQ_CMP;
402 } else if ((scb->flags & SCB_SENSE) != 0) {
403 /*
404 * We performed autosense retrieval.
405 *
406 * Zero any sense not transferred by the
407 * device. The SCSI spec mandates that any
408 * untransfered data should be assumed to be
409 * zero. Complete the 'bounce' of sense information
410 * through buffers accessible via bus-space by
411 * copying it into the clients csio.
412 */
413 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data));
414 memcpy(&ccb->csio.sense_data,
415 ahd_get_sense_buf(ahd, scb),
416 /* XXX What size do we want to use??? */
417 sizeof(ccb->csio.sense_data)
418 - ccb->csio.sense_resid);
419 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID;
420 } else if ((scb->flags & SCB_PKT_SENSE) != 0) {
421 struct scsi_status_iu_header *siu;
422 u_int sense_len;
423
424 /*
425 * Copy only the sense data into the provided buffer.
426 */
427 siu = (struct scsi_status_iu_header *)scb->sense_data;
428 sense_len = MIN(scsi_4btoul(siu->sense_length),
429 sizeof(ccb->csio.sense_data));
430 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data));
431 memcpy(&ccb->csio.sense_data,
432 ahd_get_sense_buf(ahd, scb) + SIU_SENSE_OFFSET(siu),
433 sense_len);
434 #ifdef AHD_DEBUG
435 if ((ahd_debug & AHD_SHOW_SENSE) != 0) {
436 uint8_t *sense_data = (uint8_t *)&ccb->csio.sense_data;
437 u_int i;
438
439 printf("Copied %d bytes of sense data offset %d:",
440 sense_len, SIU_SENSE_OFFSET(siu));
441 for (i = 0; i < sense_len; i++)
442 printf(" 0x%x", *sense_data++);
443 printf("\n");
444 }
445 #endif
446 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID;
447 }
448 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
449 ahd_free_scb(ahd, scb);
450 xpt_done(ccb);
451 }
452
453 static void
ahd_action(struct cam_sim * sim,union ccb * ccb)454 ahd_action(struct cam_sim *sim, union ccb *ccb)
455 {
456 struct ahd_softc *ahd;
457 #ifdef AHD_TARGET_MODE
458 struct ahd_tmode_lstate *lstate;
459 #endif
460 u_int target_id;
461 u_int our_id;
462
463 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahd_action\n"));
464
465 ahd = (struct ahd_softc *)cam_sim_softc(sim);
466
467 target_id = ccb->ccb_h.target_id;
468 our_id = SIM_SCSI_ID(ahd, sim);
469
470 switch (ccb->ccb_h.func_code) {
471 /* Common cases first */
472 #ifdef AHD_TARGET_MODE
473 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */
474 case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/
475 {
476 struct ahd_tmode_tstate *tstate;
477 cam_status status;
478
479 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate,
480 &lstate, TRUE);
481
482 if (status != CAM_REQ_CMP) {
483 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
484 /* Response from the black hole device */
485 tstate = NULL;
486 lstate = ahd->black_hole;
487 } else {
488 ccb->ccb_h.status = status;
489 xpt_done(ccb);
490 break;
491 }
492 }
493 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
494
495 SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h,
496 sim_links.sle);
497 ccb->ccb_h.status = CAM_REQ_INPROG;
498 if ((ahd->flags & AHD_TQINFIFO_BLOCKED) != 0)
499 ahd_run_tqinfifo(ahd, /*paused*/FALSE);
500 break;
501 }
502
503 /*
504 * The target_id represents the target we attempt to
505 * select. In target mode, this is the initiator of
506 * the original command.
507 */
508 our_id = target_id;
509 target_id = ccb->csio.init_id;
510 /* FALLTHROUGH */
511 }
512 #endif
513 case XPT_SCSI_IO: /* Execute the requested I/O operation */
514 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */
515 {
516 struct scb *scb;
517 struct hardware_scb *hscb;
518 struct ahd_initiator_tinfo *tinfo;
519 struct ahd_tmode_tstate *tstate;
520 u_int col_idx;
521
522 if ((ahd->flags & AHD_INITIATORROLE) == 0
523 && (ccb->ccb_h.func_code == XPT_SCSI_IO
524 || ccb->ccb_h.func_code == XPT_RESET_DEV)) {
525 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
526 xpt_done(ccb);
527 return;
528 }
529
530 /*
531 * get an scb to use.
532 */
533 tinfo = ahd_fetch_transinfo(ahd, 'A', our_id,
534 target_id, &tstate);
535 if ((ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) == 0
536 || (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0
537 || ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
538 col_idx = AHD_NEVER_COL_IDX;
539 } else {
540 col_idx = AHD_BUILD_COL_IDX(target_id,
541 ccb->ccb_h.target_lun);
542 }
543 if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) {
544
545 xpt_freeze_simq(sim, /*count*/1);
546 ahd->flags |= AHD_RESOURCE_SHORTAGE;
547 ccb->ccb_h.status = CAM_REQUEUE_REQ;
548 xpt_done(ccb);
549 return;
550 }
551
552 hscb = scb->hscb;
553
554 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE,
555 ("start scb(%p)\n", scb));
556 scb->io_ctx = ccb;
557 /*
558 * So we can find the SCB when an abort is requested
559 */
560 ccb->ccb_h.ccb_scb_ptr = scb;
561
562 /*
563 * Put all the arguments for the xfer in the scb
564 */
565 hscb->control = 0;
566 hscb->scsiid = BUILD_SCSIID(ahd, sim, target_id, our_id);
567 hscb->lun = ccb->ccb_h.target_lun;
568 if (ccb->ccb_h.func_code == XPT_RESET_DEV) {
569 hscb->cdb_len = 0;
570 scb->flags |= SCB_DEVICE_RESET;
571 hscb->control |= MK_MESSAGE;
572 hscb->task_management = SIU_TASKMGMT_LUN_RESET;
573 ahd_execute_scb(scb, NULL, 0, 0);
574 } else {
575 #ifdef AHD_TARGET_MODE
576 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
577 struct target_data *tdata;
578
579 tdata = &hscb->shared_data.tdata;
580 if (ahd->pending_device == lstate)
581 scb->flags |= SCB_TARGET_IMMEDIATE;
582 hscb->control |= TARGET_SCB;
583 tdata->target_phases = 0;
584 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
585 tdata->target_phases |= SPHASE_PENDING;
586 tdata->scsi_status =
587 ccb->csio.scsi_status;
588 }
589 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT)
590 tdata->target_phases |= NO_DISCONNECT;
591
592 tdata->initiator_tag =
593 ahd_htole16(ccb->csio.tag_id);
594 }
595 #endif
596 hscb->task_management = 0;
597 if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID)
598 hscb->control |= ccb->csio.tag_action;
599
600 ahd_setup_data(ahd, sim, &ccb->csio, scb);
601 }
602 break;
603 }
604 #ifdef AHD_TARGET_MODE
605 case XPT_NOTIFY_ACKNOWLEDGE:
606 case XPT_IMMEDIATE_NOTIFY:
607 {
608 struct ahd_tmode_tstate *tstate;
609 struct ahd_tmode_lstate *lstate;
610 cam_status status;
611
612 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate,
613 &lstate, TRUE);
614
615 if (status != CAM_REQ_CMP) {
616 ccb->ccb_h.status = status;
617 xpt_done(ccb);
618 break;
619 }
620 SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h,
621 sim_links.sle);
622 ccb->ccb_h.status = CAM_REQ_INPROG;
623 ahd_send_lstate_events(ahd, lstate);
624 break;
625 }
626 case XPT_EN_LUN: /* Enable LUN as a target */
627 ahd_handle_en_lun(ahd, sim, ccb);
628 xpt_done(ccb);
629 break;
630 #endif
631 case XPT_ABORT: /* Abort the specified CCB */
632 {
633 ahd_abort_ccb(ahd, sim, ccb);
634 break;
635 }
636 case XPT_SET_TRAN_SETTINGS:
637 {
638 ahd_set_tran_settings(ahd, SIM_SCSI_ID(ahd, sim),
639 SIM_CHANNEL(ahd, sim), &ccb->cts);
640 xpt_done(ccb);
641 break;
642 }
643 case XPT_GET_TRAN_SETTINGS:
644 /* Get default/user set transfer settings for the target */
645 {
646 ahd_get_tran_settings(ahd, SIM_SCSI_ID(ahd, sim),
647 SIM_CHANNEL(ahd, sim), &ccb->cts);
648 xpt_done(ccb);
649 break;
650 }
651 case XPT_CALC_GEOMETRY:
652 {
653 aic_calc_geometry(&ccb->ccg, ahd->flags & AHD_EXTENDED_TRANS_A);
654 xpt_done(ccb);
655 break;
656 }
657 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
658 {
659 int found;
660
661 found = ahd_reset_channel(ahd, SIM_CHANNEL(ahd, sim),
662 /*initiate reset*/TRUE);
663 if (bootverbose) {
664 xpt_print_path(SIM_PATH(ahd, sim));
665 printf("SCSI bus reset delivered. "
666 "%d SCBs aborted.\n", found);
667 }
668 ccb->ccb_h.status = CAM_REQ_CMP;
669 xpt_done(ccb);
670 break;
671 }
672 case XPT_TERM_IO: /* Terminate the I/O process */
673 /* XXX Implement */
674 ccb->ccb_h.status = CAM_REQ_INVALID;
675 xpt_done(ccb);
676 break;
677 case XPT_PATH_INQ: /* Path routing inquiry */
678 {
679 struct ccb_pathinq *cpi = &ccb->cpi;
680
681 cpi->version_num = 1; /* XXX??? */
682 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE;
683 if ((ahd->features & AHD_WIDE) != 0)
684 cpi->hba_inquiry |= PI_WIDE_16;
685 if ((ahd->features & AHD_TARGETMODE) != 0) {
686 cpi->target_sprt = PIT_PROCESSOR
687 | PIT_DISCONNECT
688 | PIT_TERM_IO;
689 } else {
690 cpi->target_sprt = 0;
691 }
692 cpi->hba_misc = 0;
693 cpi->hba_eng_cnt = 0;
694 cpi->max_target = (ahd->features & AHD_WIDE) ? 15 : 7;
695 cpi->max_lun = AHD_NUM_LUNS_NONPKT - 1;
696 cpi->initiator_id = ahd->our_id;
697 if ((ahd->flags & AHD_RESET_BUS_A) == 0) {
698 cpi->hba_misc |= PIM_NOBUSRESET;
699 }
700 cpi->bus_id = cam_sim_bus(sim);
701 cpi->base_transfer_speed = 3300;
702 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
703 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN);
704 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
705 cpi->unit_number = cam_sim_unit(sim);
706 cpi->protocol = PROTO_SCSI;
707 cpi->protocol_version = SCSI_REV_2;
708 cpi->transport = XPORT_SPI;
709 cpi->transport_version = 4;
710 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_DT_ST
711 | SID_SPI_IUS
712 | SID_SPI_QAS;
713 cpi->ccb_h.status = CAM_REQ_CMP;
714 xpt_done(ccb);
715 break;
716 }
717 default:
718 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
719 xpt_done(ccb);
720 break;
721 }
722 }
723
724
725 static void
ahd_set_tran_settings(struct ahd_softc * ahd,int our_id,char channel,struct ccb_trans_settings * cts)726 ahd_set_tran_settings(struct ahd_softc *ahd, int our_id, char channel,
727 struct ccb_trans_settings *cts)
728 {
729 struct ahd_devinfo devinfo;
730 struct ccb_trans_settings_scsi *scsi;
731 struct ccb_trans_settings_spi *spi;
732 struct ahd_initiator_tinfo *tinfo;
733 struct ahd_tmode_tstate *tstate;
734 uint16_t *discenable;
735 uint16_t *tagenable;
736 u_int update_type;
737
738 scsi = &cts->proto_specific.scsi;
739 spi = &cts->xport_specific.spi;
740 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim),
741 cts->ccb_h.target_id,
742 cts->ccb_h.target_lun,
743 SIM_CHANNEL(ahd, sim),
744 ROLE_UNKNOWN);
745 tinfo = ahd_fetch_transinfo(ahd, devinfo.channel,
746 devinfo.our_scsiid,
747 devinfo.target, &tstate);
748 update_type = 0;
749 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
750 update_type |= AHD_TRANS_GOAL;
751 discenable = &tstate->discenable;
752 tagenable = &tstate->tagenable;
753 tinfo->curr.protocol_version = cts->protocol_version;
754 tinfo->curr.transport_version = cts->transport_version;
755 tinfo->goal.protocol_version = cts->protocol_version;
756 tinfo->goal.transport_version = cts->transport_version;
757 } else if (cts->type == CTS_TYPE_USER_SETTINGS) {
758 update_type |= AHD_TRANS_USER;
759 discenable = &ahd->user_discenable;
760 tagenable = &ahd->user_tagenable;
761 tinfo->user.protocol_version = cts->protocol_version;
762 tinfo->user.transport_version = cts->transport_version;
763 } else {
764 cts->ccb_h.status = CAM_REQ_INVALID;
765 return;
766 }
767
768 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
769 if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0)
770 *discenable |= devinfo.target_mask;
771 else
772 *discenable &= ~devinfo.target_mask;
773 }
774
775 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
776 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0)
777 *tagenable |= devinfo.target_mask;
778 else
779 *tagenable &= ~devinfo.target_mask;
780 }
781
782 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
783 ahd_validate_width(ahd, /*tinfo limit*/NULL,
784 &spi->bus_width, ROLE_UNKNOWN);
785 ahd_set_width(ahd, &devinfo, spi->bus_width,
786 update_type, /*paused*/FALSE);
787 }
788
789 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) {
790 if (update_type == AHD_TRANS_USER)
791 spi->ppr_options = tinfo->user.ppr_options;
792 else
793 spi->ppr_options = tinfo->goal.ppr_options;
794 }
795
796 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) {
797 if (update_type == AHD_TRANS_USER)
798 spi->sync_offset = tinfo->user.offset;
799 else
800 spi->sync_offset = tinfo->goal.offset;
801 }
802
803 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) {
804 if (update_type == AHD_TRANS_USER)
805 spi->sync_period = tinfo->user.period;
806 else
807 spi->sync_period = tinfo->goal.period;
808 }
809
810 if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0)
811 || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) {
812 u_int maxsync;
813
814 maxsync = AHD_SYNCRATE_MAX;
815
816 if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT)
817 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ;
818
819 if ((*discenable & devinfo.target_mask) == 0)
820 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ;
821
822 ahd_find_syncrate(ahd, &spi->sync_period,
823 &spi->ppr_options, maxsync);
824 ahd_validate_offset(ahd, /*tinfo limit*/NULL,
825 spi->sync_period, &spi->sync_offset,
826 spi->bus_width, ROLE_UNKNOWN);
827
828 /* We use a period of 0 to represent async */
829 if (spi->sync_offset == 0) {
830 spi->sync_period = 0;
831 spi->ppr_options = 0;
832 }
833
834 ahd_set_syncrate(ahd, &devinfo, spi->sync_period,
835 spi->sync_offset, spi->ppr_options,
836 update_type, /*paused*/FALSE);
837 }
838 cts->ccb_h.status = CAM_REQ_CMP;
839 }
840
841 static void
ahd_get_tran_settings(struct ahd_softc * ahd,int our_id,char channel,struct ccb_trans_settings * cts)842 ahd_get_tran_settings(struct ahd_softc *ahd, int our_id, char channel,
843 struct ccb_trans_settings *cts)
844 {
845 struct ahd_devinfo devinfo;
846 struct ccb_trans_settings_scsi *scsi;
847 struct ccb_trans_settings_spi *spi;
848 struct ahd_initiator_tinfo *targ_info;
849 struct ahd_tmode_tstate *tstate;
850 struct ahd_transinfo *tinfo;
851
852 scsi = &cts->proto_specific.scsi;
853 spi = &cts->xport_specific.spi;
854 ahd_compile_devinfo(&devinfo, our_id,
855 cts->ccb_h.target_id,
856 cts->ccb_h.target_lun,
857 channel, ROLE_UNKNOWN);
858 targ_info = ahd_fetch_transinfo(ahd, devinfo.channel,
859 devinfo.our_scsiid,
860 devinfo.target, &tstate);
861
862 if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
863 tinfo = &targ_info->curr;
864 else
865 tinfo = &targ_info->user;
866
867 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
868 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB;
869 if (cts->type == CTS_TYPE_USER_SETTINGS) {
870 if ((ahd->user_discenable & devinfo.target_mask) != 0)
871 spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
872
873 if ((ahd->user_tagenable & devinfo.target_mask) != 0)
874 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
875 } else {
876 if ((tstate->discenable & devinfo.target_mask) != 0)
877 spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
878
879 if ((tstate->tagenable & devinfo.target_mask) != 0)
880 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
881 }
882 cts->protocol_version = tinfo->protocol_version;
883 cts->transport_version = tinfo->transport_version;
884
885 spi->sync_period = tinfo->period;
886 spi->sync_offset = tinfo->offset;
887 spi->bus_width = tinfo->width;
888 spi->ppr_options = tinfo->ppr_options;
889
890 cts->protocol = PROTO_SCSI;
891 cts->transport = XPORT_SPI;
892 spi->valid = CTS_SPI_VALID_SYNC_RATE
893 | CTS_SPI_VALID_SYNC_OFFSET
894 | CTS_SPI_VALID_BUS_WIDTH
895 | CTS_SPI_VALID_PPR_OPTIONS;
896
897 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
898 scsi->valid = CTS_SCSI_VALID_TQ;
899 spi->valid |= CTS_SPI_VALID_DISC;
900 } else {
901 scsi->valid = 0;
902 }
903
904 cts->ccb_h.status = CAM_REQ_CMP;
905 }
906
907 static void
ahd_async(void * callback_arg,uint32_t code,struct cam_path * path,void * arg)908 ahd_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg)
909 {
910 struct ahd_softc *ahd;
911 struct cam_sim *sim;
912
913 sim = (struct cam_sim *)callback_arg;
914 ahd = (struct ahd_softc *)cam_sim_softc(sim);
915 switch (code) {
916 case AC_LOST_DEVICE:
917 {
918 struct ahd_devinfo devinfo;
919
920 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim),
921 xpt_path_target_id(path),
922 xpt_path_lun_id(path),
923 SIM_CHANNEL(ahd, sim),
924 ROLE_UNKNOWN);
925
926 /*
927 * Revert to async/narrow transfers
928 * for the next device.
929 */
930 ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
931 AHD_TRANS_GOAL|AHD_TRANS_CUR, /*paused*/FALSE);
932 ahd_set_syncrate(ahd, &devinfo, /*period*/0, /*offset*/0,
933 /*ppr_options*/0, AHD_TRANS_GOAL|AHD_TRANS_CUR,
934 /*paused*/FALSE);
935 break;
936 }
937 default:
938 break;
939 }
940 }
941
942 static void
ahd_execute_scb(void * arg,bus_dma_segment_t * dm_segs,int nsegments,int error)943 ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments,
944 int error)
945 {
946 struct scb *scb;
947 union ccb *ccb;
948 struct ahd_softc *ahd;
949 struct ahd_initiator_tinfo *tinfo;
950 struct ahd_tmode_tstate *tstate;
951 u_int mask;
952
953 scb = (struct scb *)arg;
954 ccb = scb->io_ctx;
955 ahd = scb->ahd_softc;
956
957 if (error != 0) {
958 if (error == EFBIG)
959 aic_set_transaction_status(scb, CAM_REQ_TOO_BIG);
960 else
961 aic_set_transaction_status(scb, CAM_REQ_CMP_ERR);
962 if (nsegments != 0)
963 bus_dmamap_unload(ahd->buffer_dmat, scb->dmamap);
964 ahd_free_scb(ahd, scb);
965 xpt_done(ccb);
966 return;
967 }
968 scb->sg_count = 0;
969 if (nsegments != 0) {
970 void *sg;
971 bus_dmasync_op_t op;
972 u_int i;
973
974 /* Copy the segments into our SG list */
975 for (i = nsegments, sg = scb->sg_list; i > 0; i--) {
976
977 sg = ahd_sg_setup(ahd, scb, sg, dm_segs->ds_addr,
978 dm_segs->ds_len,
979 /*last*/i == 1);
980 dm_segs++;
981 }
982
983 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
984 op = BUS_DMASYNC_PREREAD;
985 else
986 op = BUS_DMASYNC_PREWRITE;
987
988 bus_dmamap_sync(ahd->buffer_dmat, scb->dmamap, op);
989
990 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
991 struct target_data *tdata;
992
993 tdata = &scb->hscb->shared_data.tdata;
994 tdata->target_phases |= DPHASE_PENDING;
995 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
996 tdata->data_phase = P_DATAOUT;
997 else
998 tdata->data_phase = P_DATAIN;
999 }
1000 }
1001
1002 /*
1003 * Last time we need to check if this SCB needs to
1004 * be aborted.
1005 */
1006 if (aic_get_transaction_status(scb) != CAM_REQ_INPROG) {
1007 if (nsegments != 0)
1008 bus_dmamap_unload(ahd->buffer_dmat,
1009 scb->dmamap);
1010 ahd_free_scb(ahd, scb);
1011 xpt_done(ccb);
1012 return;
1013 }
1014
1015 tinfo = ahd_fetch_transinfo(ahd, SCSIID_CHANNEL(ahd, scb->hscb->scsiid),
1016 SCSIID_OUR_ID(scb->hscb->scsiid),
1017 SCSIID_TARGET(ahd, scb->hscb->scsiid),
1018 &tstate);
1019
1020 mask = SCB_GET_TARGET_MASK(ahd, scb);
1021
1022 if ((tstate->discenable & mask) != 0
1023 && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0)
1024 scb->hscb->control |= DISCENB;
1025
1026 if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) {
1027 scb->flags |= SCB_PACKETIZED;
1028 if (scb->hscb->task_management != 0)
1029 scb->hscb->control &= ~MK_MESSAGE;
1030 }
1031
1032 if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0
1033 && (tinfo->goal.width != 0
1034 || tinfo->goal.period != 0
1035 || tinfo->goal.ppr_options != 0)) {
1036 scb->flags |= SCB_NEGOTIATE;
1037 scb->hscb->control |= MK_MESSAGE;
1038 } else if ((tstate->auto_negotiate & mask) != 0) {
1039 scb->flags |= SCB_AUTO_NEGOTIATE;
1040 scb->hscb->control |= MK_MESSAGE;
1041 }
1042
1043 LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links);
1044
1045 ccb->ccb_h.status |= CAM_SIM_QUEUED;
1046
1047 aic_scb_timer_start(scb);
1048
1049 if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) {
1050 /* Define a mapping from our tag to the SCB. */
1051 ahd->scb_data.scbindex[SCB_GET_TAG(scb)] = scb;
1052 ahd_pause(ahd);
1053 ahd_set_scbptr(ahd, SCB_GET_TAG(scb));
1054 ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_TARG);
1055 ahd_unpause(ahd);
1056 } else {
1057 ahd_queue_scb(ahd, scb);
1058 }
1059
1060 }
1061
1062 static void
ahd_poll(struct cam_sim * sim)1063 ahd_poll(struct cam_sim *sim)
1064 {
1065 ahd_intr(cam_sim_softc(sim));
1066 }
1067
1068 static void
ahd_setup_data(struct ahd_softc * ahd,struct cam_sim * sim,struct ccb_scsiio * csio,struct scb * scb)1069 ahd_setup_data(struct ahd_softc *ahd, struct cam_sim *sim,
1070 struct ccb_scsiio *csio, struct scb *scb)
1071 {
1072 struct hardware_scb *hscb;
1073 struct ccb_hdr *ccb_h;
1074 int error;
1075
1076 hscb = scb->hscb;
1077 ccb_h = &csio->ccb_h;
1078
1079 csio->resid = 0;
1080 csio->sense_resid = 0;
1081 if (ccb_h->func_code == XPT_SCSI_IO) {
1082 hscb->cdb_len = csio->cdb_len;
1083 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) {
1084
1085 if (hscb->cdb_len > MAX_CDB_LEN
1086 && (ccb_h->flags & CAM_CDB_PHYS) == 0) {
1087
1088 /*
1089 * Should CAM start to support CDB sizes
1090 * greater than 16 bytes, we could use
1091 * the sense buffer to store the CDB.
1092 */
1093 aic_set_transaction_status(scb,
1094 CAM_REQ_INVALID);
1095 ahd_free_scb(ahd, scb);
1096 xpt_done((union ccb *)csio);
1097 return;
1098 }
1099 if ((ccb_h->flags & CAM_CDB_PHYS) != 0) {
1100 hscb->shared_data.idata.cdb_from_host.cdbptr =
1101 aic_htole64((uintptr_t)csio->cdb_io.cdb_ptr);
1102 hscb->shared_data.idata.cdb_from_host.cdblen =
1103 csio->cdb_len;
1104 hscb->cdb_len |= SCB_CDB_LEN_PTR;
1105 } else {
1106 memcpy(hscb->shared_data.idata.cdb,
1107 csio->cdb_io.cdb_ptr,
1108 hscb->cdb_len);
1109 }
1110 } else {
1111 if (hscb->cdb_len > MAX_CDB_LEN) {
1112
1113 aic_set_transaction_status(scb,
1114 CAM_REQ_INVALID);
1115 ahd_free_scb(ahd, scb);
1116 xpt_done((union ccb *)csio);
1117 return;
1118 }
1119 memcpy(hscb->shared_data.idata.cdb,
1120 csio->cdb_io.cdb_bytes, hscb->cdb_len);
1121 }
1122 }
1123
1124 error = bus_dmamap_load_ccb(ahd->buffer_dmat,
1125 scb->dmamap,
1126 (union ccb *)csio,
1127 ahd_execute_scb,
1128 scb, /*flags*/0);
1129 if (error == EINPROGRESS) {
1130 /*
1131 * So as to maintain ordering, freeze the controller queue
1132 * until our mapping is returned.
1133 */
1134 xpt_freeze_simq(sim, /*count*/1);
1135 scb->io_ctx->ccb_h.status |= CAM_RELEASE_SIMQ;
1136 }
1137 }
1138
1139 static void
ahd_abort_ccb(struct ahd_softc * ahd,struct cam_sim * sim,union ccb * ccb)1140 ahd_abort_ccb(struct ahd_softc *ahd, struct cam_sim *sim, union ccb *ccb)
1141 {
1142 union ccb *abort_ccb;
1143
1144 abort_ccb = ccb->cab.abort_ccb;
1145 switch (abort_ccb->ccb_h.func_code) {
1146 #ifdef AHD_TARGET_MODE
1147 case XPT_ACCEPT_TARGET_IO:
1148 case XPT_IMMEDIATE_NOTIFY:
1149 case XPT_CONT_TARGET_IO:
1150 {
1151 struct ahd_tmode_tstate *tstate;
1152 struct ahd_tmode_lstate *lstate;
1153 struct ccb_hdr_slist *list;
1154 cam_status status;
1155
1156 status = ahd_find_tmode_devs(ahd, sim, abort_ccb, &tstate,
1157 &lstate, TRUE);
1158
1159 if (status != CAM_REQ_CMP) {
1160 ccb->ccb_h.status = status;
1161 break;
1162 }
1163
1164 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO)
1165 list = &lstate->accept_tios;
1166 else if (abort_ccb->ccb_h.func_code == XPT_IMMEDIATE_NOTIFY)
1167 list = &lstate->immed_notifies;
1168 else
1169 list = NULL;
1170
1171 if (list != NULL) {
1172 struct ccb_hdr *curelm;
1173 int found;
1174
1175 curelm = SLIST_FIRST(list);
1176 found = 0;
1177 if (curelm == &abort_ccb->ccb_h) {
1178 found = 1;
1179 SLIST_REMOVE_HEAD(list, sim_links.sle);
1180 } else {
1181 while(curelm != NULL) {
1182 struct ccb_hdr *nextelm;
1183
1184 nextelm =
1185 SLIST_NEXT(curelm, sim_links.sle);
1186
1187 if (nextelm == &abort_ccb->ccb_h) {
1188 found = 1;
1189 SLIST_NEXT(curelm,
1190 sim_links.sle) =
1191 SLIST_NEXT(nextelm,
1192 sim_links.sle);
1193 break;
1194 }
1195 curelm = nextelm;
1196 }
1197 }
1198
1199 if (found) {
1200 abort_ccb->ccb_h.status = CAM_REQ_ABORTED;
1201 xpt_done(abort_ccb);
1202 ccb->ccb_h.status = CAM_REQ_CMP;
1203 } else {
1204 xpt_print_path(abort_ccb->ccb_h.path);
1205 printf("Not found\n");
1206 ccb->ccb_h.status = CAM_PATH_INVALID;
1207 }
1208 break;
1209 }
1210 /* FALLTHROUGH */
1211 }
1212 #endif
1213 case XPT_SCSI_IO:
1214 /* XXX Fully implement the hard ones */
1215 ccb->ccb_h.status = CAM_UA_ABORT;
1216 break;
1217 default:
1218 ccb->ccb_h.status = CAM_REQ_INVALID;
1219 break;
1220 }
1221 xpt_done(ccb);
1222 }
1223
1224 void
ahd_send_async(struct ahd_softc * ahd,char channel,u_int target,u_int lun,ac_code code,void * opt_arg)1225 ahd_send_async(struct ahd_softc *ahd, char channel, u_int target,
1226 u_int lun, ac_code code, void *opt_arg)
1227 {
1228 struct ccb_trans_settings cts;
1229 struct cam_path *path;
1230 void *arg;
1231 int error;
1232
1233 arg = NULL;
1234 error = ahd_create_path(ahd, channel, target, lun, &path);
1235
1236 if (error != CAM_REQ_CMP)
1237 return;
1238
1239 switch (code) {
1240 case AC_TRANSFER_NEG:
1241 {
1242 struct ccb_trans_settings_scsi *scsi;
1243
1244 cts.type = CTS_TYPE_CURRENT_SETTINGS;
1245 scsi = &cts.proto_specific.scsi;
1246 cts.ccb_h.path = path;
1247 cts.ccb_h.target_id = target;
1248 cts.ccb_h.target_lun = lun;
1249 ahd_get_tran_settings(ahd, ahd->our_id, channel, &cts);
1250 arg = &cts;
1251 scsi->valid &= ~CTS_SCSI_VALID_TQ;
1252 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
1253 if (opt_arg == NULL)
1254 break;
1255 if (*((ahd_queue_alg *)opt_arg) == AHD_QUEUE_TAGGED)
1256 scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB;
1257 scsi->valid |= CTS_SCSI_VALID_TQ;
1258 break;
1259 }
1260 case AC_SENT_BDR:
1261 case AC_BUS_RESET:
1262 break;
1263 default:
1264 panic("ahd_send_async: Unexpected async event");
1265 }
1266 xpt_async(code, path, arg);
1267 xpt_free_path(path);
1268 }
1269
1270 void
ahd_platform_set_tags(struct ahd_softc * ahd,struct ahd_devinfo * devinfo,int enable)1271 ahd_platform_set_tags(struct ahd_softc *ahd,
1272 struct ahd_devinfo *devinfo, int enable)
1273 {
1274 }
1275
1276 int
ahd_platform_alloc(struct ahd_softc * ahd,void * platform_arg)1277 ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg)
1278 {
1279 ahd->platform_data = malloc(sizeof(struct ahd_platform_data), M_DEVBUF,
1280 M_NOWAIT | M_ZERO);
1281 if (ahd->platform_data == NULL)
1282 return (ENOMEM);
1283 return (0);
1284 }
1285
1286 void
ahd_platform_free(struct ahd_softc * ahd)1287 ahd_platform_free(struct ahd_softc *ahd)
1288 {
1289 struct ahd_platform_data *pdata;
1290
1291 pdata = ahd->platform_data;
1292 if (pdata != NULL) {
1293 if (pdata->regs[0] != NULL)
1294 bus_release_resource(ahd->dev_softc,
1295 pdata->regs_res_type[0],
1296 pdata->regs_res_id[0],
1297 pdata->regs[0]);
1298
1299 if (pdata->regs[1] != NULL)
1300 bus_release_resource(ahd->dev_softc,
1301 pdata->regs_res_type[1],
1302 pdata->regs_res_id[1],
1303 pdata->regs[1]);
1304
1305 if (pdata->irq != NULL)
1306 bus_release_resource(ahd->dev_softc,
1307 pdata->irq_res_type,
1308 0, pdata->irq);
1309
1310 if (pdata->sim != NULL) {
1311 xpt_async(AC_LOST_DEVICE, pdata->path, NULL);
1312 xpt_free_path(pdata->path);
1313 xpt_bus_deregister(cam_sim_path(pdata->sim));
1314 cam_sim_free(pdata->sim, /*free_devq*/TRUE);
1315 }
1316 if (pdata->eh != NULL)
1317 EVENTHANDLER_DEREGISTER(shutdown_final, pdata->eh);
1318 free(ahd->platform_data, M_DEVBUF);
1319 }
1320 }
1321
1322 int
ahd_softc_comp(struct ahd_softc * lahd,struct ahd_softc * rahd)1323 ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd)
1324 {
1325 /* We don't sort softcs under FreeBSD so report equal always */
1326 return (0);
1327 }
1328
1329 int
ahd_detach(device_t dev)1330 ahd_detach(device_t dev)
1331 {
1332 struct ahd_softc *ahd;
1333
1334 device_printf(dev, "detaching device\n");
1335 ahd = device_get_softc(dev);
1336 ahd_lock(ahd);
1337 TAILQ_REMOVE(&ahd_tailq, ahd, links);
1338 ahd_intr_enable(ahd, FALSE);
1339 bus_teardown_intr(dev, ahd->platform_data->irq, ahd->platform_data->ih);
1340 ahd_unlock(ahd);
1341 ahd_free(ahd);
1342 return (0);
1343 }
1344
1345 #if 0
1346 static void
1347 ahd_dump_targcmd(struct target_cmd *cmd)
1348 {
1349 uint8_t *byte;
1350 uint8_t *last_byte;
1351 int i;
1352
1353 byte = &cmd->initiator_channel;
1354 /* Debugging info for received commands */
1355 last_byte = &cmd[1].initiator_channel;
1356
1357 i = 0;
1358 while (byte < last_byte) {
1359 if (i == 0)
1360 printf("\t");
1361 printf("%#x", *byte++);
1362 i++;
1363 if (i == 8) {
1364 printf("\n");
1365 i = 0;
1366 } else {
1367 printf(", ");
1368 }
1369 }
1370 }
1371 #endif
1372
1373 static int
ahd_modevent(module_t mod,int type,void * data)1374 ahd_modevent(module_t mod, int type, void *data)
1375 {
1376 /* XXX Deal with busy status on unload. */
1377 /* XXX Deal with unknown events */
1378 return 0;
1379 }
1380
1381 static moduledata_t ahd_mod = {
1382 "ahd",
1383 ahd_modevent,
1384 NULL
1385 };
1386
1387 /********************************** DDB Hooks *********************************/
1388 #ifdef DDB
1389 static struct ahd_softc *ahd_ddb_softc;
1390 static int ahd_ddb_paused;
1391 static int ahd_ddb_paused_on_entry;
DB_COMMAND(ahd_sunit,ahd_ddb_sunit)1392 DB_COMMAND(ahd_sunit, ahd_ddb_sunit)
1393 {
1394 struct ahd_softc *list_ahd;
1395
1396 ahd_ddb_softc = NULL;
1397 TAILQ_FOREACH(list_ahd, &ahd_tailq, links) {
1398 if (list_ahd->unit == addr)
1399 ahd_ddb_softc = list_ahd;
1400 }
1401 if (ahd_ddb_softc == NULL)
1402 db_error("No matching softc found!\n");
1403 }
1404
DB_COMMAND(ahd_pause,ahd_ddb_pause)1405 DB_COMMAND(ahd_pause, ahd_ddb_pause)
1406 {
1407 if (ahd_ddb_softc == NULL) {
1408 db_error("Must set unit with ahd_sunit first!\n");
1409 return;
1410 }
1411 if (ahd_ddb_paused == 0) {
1412 ahd_ddb_paused++;
1413 if (ahd_is_paused(ahd_ddb_softc)) {
1414 ahd_ddb_paused_on_entry++;
1415 return;
1416 }
1417 ahd_pause(ahd_ddb_softc);
1418 }
1419 }
1420
DB_COMMAND(ahd_unpause,ahd_ddb_unpause)1421 DB_COMMAND(ahd_unpause, ahd_ddb_unpause)
1422 {
1423 if (ahd_ddb_softc == NULL) {
1424 db_error("Must set unit with ahd_sunit first!\n");
1425 return;
1426 }
1427 if (ahd_ddb_paused != 0) {
1428 ahd_ddb_paused = 0;
1429 if (ahd_ddb_paused_on_entry)
1430 return;
1431 ahd_unpause(ahd_ddb_softc);
1432 } else if (ahd_ddb_paused_on_entry != 0) {
1433 /* Two unpauses to clear a paused on entry. */
1434 ahd_ddb_paused_on_entry = 0;
1435 ahd_unpause(ahd_ddb_softc);
1436 }
1437 }
1438
DB_COMMAND(ahd_in,ahd_ddb_in)1439 DB_COMMAND(ahd_in, ahd_ddb_in)
1440 {
1441 int c;
1442 int size;
1443
1444 if (ahd_ddb_softc == NULL) {
1445 db_error("Must set unit with ahd_sunit first!\n");
1446 return;
1447 }
1448 if (have_addr == 0)
1449 return;
1450
1451 size = 1;
1452 while ((c = *modif++) != '\0') {
1453 switch (c) {
1454 case 'b':
1455 size = 1;
1456 break;
1457 case 'w':
1458 size = 2;
1459 break;
1460 case 'l':
1461 size = 4;
1462 break;
1463 }
1464 }
1465
1466 if (count <= 0)
1467 count = 1;
1468 while (--count >= 0) {
1469 db_printf("%04lx (M)%x: \t", (u_long)addr,
1470 ahd_inb(ahd_ddb_softc, MODE_PTR));
1471 switch (size) {
1472 case 1:
1473 db_printf("%02x\n", ahd_inb(ahd_ddb_softc, addr));
1474 break;
1475 case 2:
1476 db_printf("%04x\n", ahd_inw(ahd_ddb_softc, addr));
1477 break;
1478 case 4:
1479 db_printf("%08x\n", ahd_inl(ahd_ddb_softc, addr));
1480 break;
1481 }
1482 }
1483 }
1484
DB_FUNC(ahd_out,ahd_ddb_out,db_cmd_table,CS_MORE,NULL)1485 DB_FUNC(ahd_out, ahd_ddb_out, db_cmd_table, CS_MORE, NULL)
1486 {
1487 db_expr_t old_value;
1488 db_expr_t new_value;
1489 int size;
1490
1491 if (ahd_ddb_softc == NULL) {
1492 db_error("Must set unit with ahd_sunit first!\n");
1493 return;
1494 }
1495
1496 switch (modif[0]) {
1497 case '\0':
1498 case 'b':
1499 size = 1;
1500 break;
1501 case 'h':
1502 size = 2;
1503 break;
1504 case 'l':
1505 size = 4;
1506 break;
1507 default:
1508 db_error("Unknown size\n");
1509 return;
1510 }
1511
1512 while (db_expression(&new_value)) {
1513 switch (size) {
1514 default:
1515 case 1:
1516 old_value = ahd_inb(ahd_ddb_softc, addr);
1517 ahd_outb(ahd_ddb_softc, addr, new_value);
1518 break;
1519 case 2:
1520 old_value = ahd_inw(ahd_ddb_softc, addr);
1521 ahd_outw(ahd_ddb_softc, addr, new_value);
1522 break;
1523 case 4:
1524 old_value = ahd_inl(ahd_ddb_softc, addr);
1525 ahd_outl(ahd_ddb_softc, addr, new_value);
1526 break;
1527 }
1528 db_printf("%04lx (M)%x: \t0x%lx\t=\t0x%lx",
1529 (u_long)addr, ahd_inb(ahd_ddb_softc, MODE_PTR),
1530 (u_long)old_value, (u_long)new_value);
1531 addr += size;
1532 }
1533 db_skip_to_eol();
1534 }
1535
DB_COMMAND(ahd_dump,ahd_ddb_dump)1536 DB_COMMAND(ahd_dump, ahd_ddb_dump)
1537 {
1538 if (ahd_ddb_softc == NULL) {
1539 db_error("Must set unit with ahd_sunit first!\n");
1540 return;
1541 }
1542 ahd_dump_card_state(ahd_ddb_softc);
1543 }
1544
1545 #endif
1546
1547
1548 DECLARE_MODULE(ahd, ahd_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
1549 MODULE_DEPEND(ahd, cam, 1, 1, 1);
1550 MODULE_VERSION(ahd, 1);
1551