1 /*
2 * Generic register and struct definitions for the Adaptech 154x/164x
3 * SCSI host adapters. Product specific probe and attach routines can
4 * be found in:
5 * aha 1542A/1542B/1542C/1542CF/1542CP aha_isa.c
6 * aha 1640 aha_mca.c
7 */
8 /*-
9 * Copyright (c) 1998 M. Warner Losh.
10 * All Rights Reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * Derived from bt.c written by:
34 *
35 * Copyright (c) 1998 Justin T. Gibbs.
36 * All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 * 1. Redistributions of source code must retain the above copyright
42 * notice, this list of conditions, and the following disclaimer,
43 * without modification, immediately at the beginning of the file.
44 * 2. The name of the author may not be used to endorse or promote products
45 * derived from this software without specific prior written permission.
46 *
47 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
48 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
49 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
50 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
51 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
52 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
53 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
54 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
55 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
56 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
57 * SUCH DAMAGE.
58 */
59
60 #include <sys/cdefs.h>
61 __FBSDID("$FreeBSD$");
62
63 #include <sys/param.h>
64 #include <sys/conf.h>
65 #include <sys/bus.h>
66 #include <sys/systm.h>
67 #include <sys/malloc.h>
68 #include <sys/kernel.h>
69 #include <sys/lock.h>
70 #include <sys/module.h>
71 #include <sys/mutex.h>
72 #include <sys/rman.h>
73
74 #include <machine/bus.h>
75
76 #include <cam/cam.h>
77 #include <cam/cam_ccb.h>
78 #include <cam/cam_sim.h>
79 #include <cam/cam_xpt_sim.h>
80 #include <cam/cam_debug.h>
81
82 #include <cam/scsi/scsi_message.h>
83
84 #include <dev/aha/ahareg.h>
85
86 #define PRVERB(x) do { if (bootverbose) device_printf x; } while (0)
87
88 /* Macro to determine that a rev is potentially a new valid one
89 * so that the driver doesn't keep breaking on new revs as it
90 * did for the CF and CP.
91 */
92 #define PROBABLY_NEW_BOARD(REV) (REV > 0x43 && REV < 0x56)
93
94 /* MailBox Management functions */
95 static __inline void ahanextinbox(struct aha_softc *aha);
96 static __inline void ahanextoutbox(struct aha_softc *aha);
97
98 #define aha_name(aha) device_get_nameunit(aha->dev)
99
100 static __inline void
ahanextinbox(struct aha_softc * aha)101 ahanextinbox(struct aha_softc *aha)
102 {
103 if (aha->cur_inbox == aha->last_inbox)
104 aha->cur_inbox = aha->in_boxes;
105 else
106 aha->cur_inbox++;
107 }
108
109 static __inline void
ahanextoutbox(struct aha_softc * aha)110 ahanextoutbox(struct aha_softc *aha)
111 {
112 if (aha->cur_outbox == aha->last_outbox)
113 aha->cur_outbox = aha->out_boxes;
114 else
115 aha->cur_outbox++;
116 }
117
118 #define ahautoa24(u,s3) \
119 (s3)[0] = ((u) >> 16) & 0xff; \
120 (s3)[1] = ((u) >> 8) & 0xff; \
121 (s3)[2] = (u) & 0xff;
122
123 #define aha_a24tou(s3) \
124 (((s3)[0] << 16) | ((s3)[1] << 8) | (s3)[2])
125
126 /* CCB Management functions */
127 static __inline uint32_t ahaccbvtop(struct aha_softc *aha,
128 struct aha_ccb *accb);
129 static __inline struct aha_ccb* ahaccbptov(struct aha_softc *aha,
130 uint32_t ccb_addr);
131
132 static __inline uint32_t
ahaccbvtop(struct aha_softc * aha,struct aha_ccb * accb)133 ahaccbvtop(struct aha_softc *aha, struct aha_ccb *accb)
134 {
135 return (aha->aha_ccb_physbase
136 + (uint32_t)((caddr_t)accb - (caddr_t)aha->aha_ccb_array));
137 }
138 static __inline struct aha_ccb *
ahaccbptov(struct aha_softc * aha,uint32_t ccb_addr)139 ahaccbptov(struct aha_softc *aha, uint32_t ccb_addr)
140 {
141 return (aha->aha_ccb_array +
142 + ((struct aha_ccb*)(uintptr_t)ccb_addr -
143 (struct aha_ccb*)(uintptr_t)aha->aha_ccb_physbase));
144 }
145
146 static struct aha_ccb* ahagetccb(struct aha_softc *aha);
147 static __inline void ahafreeccb(struct aha_softc *aha, struct aha_ccb *accb);
148 static void ahaallocccbs(struct aha_softc *aha);
149 static bus_dmamap_callback_t ahaexecuteccb;
150 static void ahadone(struct aha_softc *aha, struct aha_ccb *accb,
151 aha_mbi_comp_code_t comp_code);
152 static void aha_intr_locked(struct aha_softc *aha);
153
154 /* Host adapter command functions */
155 static int ahareset(struct aha_softc* aha, int hard_reset);
156
157 /* Initialization functions */
158 static int ahainitmboxes(struct aha_softc *aha);
159 static bus_dmamap_callback_t ahamapmboxes;
160 static bus_dmamap_callback_t ahamapccbs;
161 static bus_dmamap_callback_t ahamapsgs;
162
163 /* Transfer Negotiation Functions */
164 static void ahafetchtransinfo(struct aha_softc *aha,
165 struct ccb_trans_settings *cts);
166
167 /* CAM SIM entry points */
168 #define ccb_accb_ptr spriv_ptr0
169 #define ccb_aha_ptr spriv_ptr1
170 static void ahaaction(struct cam_sim *sim, union ccb *ccb);
171 static void ahapoll(struct cam_sim *sim);
172
173 /* Our timeout handler */
174 static void ahatimeout(void *arg);
175
176 /* Exported functions */
177 void
aha_alloc(struct aha_softc * aha)178 aha_alloc(struct aha_softc *aha)
179 {
180
181 SLIST_INIT(&aha->free_aha_ccbs);
182 LIST_INIT(&aha->pending_ccbs);
183 SLIST_INIT(&aha->sg_maps);
184 aha->ccb_sg_opcode = INITIATOR_SG_CCB_WRESID;
185 aha->ccb_ccb_opcode = INITIATOR_CCB_WRESID;
186 mtx_init(&aha->lock, "aha", NULL, MTX_DEF);
187 }
188
189 void
aha_free(struct aha_softc * aha)190 aha_free(struct aha_softc *aha)
191 {
192 switch (aha->init_level) {
193 default:
194 case 8:
195 {
196 struct sg_map_node *sg_map;
197
198 while ((sg_map = SLIST_FIRST(&aha->sg_maps))!= NULL) {
199 SLIST_REMOVE_HEAD(&aha->sg_maps, links);
200 bus_dmamap_unload(aha->sg_dmat, sg_map->sg_dmamap);
201 bus_dmamem_free(aha->sg_dmat, sg_map->sg_vaddr,
202 sg_map->sg_dmamap);
203 free(sg_map, M_DEVBUF);
204 }
205 bus_dma_tag_destroy(aha->sg_dmat);
206 }
207 case 7:
208 bus_dmamap_unload(aha->ccb_dmat, aha->ccb_dmamap);
209 case 6:
210 bus_dmamem_free(aha->ccb_dmat, aha->aha_ccb_array,
211 aha->ccb_dmamap);
212 case 5:
213 bus_dma_tag_destroy(aha->ccb_dmat);
214 case 4:
215 bus_dmamap_unload(aha->mailbox_dmat, aha->mailbox_dmamap);
216 case 3:
217 bus_dmamem_free(aha->mailbox_dmat, aha->in_boxes,
218 aha->mailbox_dmamap);
219 case 2:
220 bus_dma_tag_destroy(aha->buffer_dmat);
221 case 1:
222 bus_dma_tag_destroy(aha->mailbox_dmat);
223 case 0:
224 break;
225 }
226 mtx_destroy(&aha->lock);
227 }
228
229 /*
230 * Probe the adapter and verify that the card is an Adaptec.
231 */
232 int
aha_probe(struct aha_softc * aha)233 aha_probe(struct aha_softc* aha)
234 {
235 u_int status;
236 u_int intstat;
237 int error;
238 board_id_data_t board_id;
239
240 /*
241 * See if the three I/O ports look reasonable.
242 * Touch the minimal number of registers in the
243 * failure case.
244 */
245 status = aha_inb(aha, STATUS_REG);
246 if ((status == 0) ||
247 (status & (DIAG_ACTIVE|CMD_REG_BUSY | STATUS_REG_RSVD)) != 0) {
248 PRVERB((aha->dev, "status reg test failed %x\n", status));
249 return (ENXIO);
250 }
251
252 intstat = aha_inb(aha, INTSTAT_REG);
253 if ((intstat & INTSTAT_REG_RSVD) != 0) {
254 PRVERB((aha->dev, "Failed Intstat Reg Test\n"));
255 return (ENXIO);
256 }
257
258 /*
259 * Looking good so far. Final test is to reset the
260 * adapter and fetch the board ID and ensure we aren't
261 * looking at a BusLogic.
262 */
263 if ((error = ahareset(aha, /*hard_reset*/TRUE)) != 0) {
264 PRVERB((aha->dev, "Failed Reset\n"));
265 return (ENXIO);
266 }
267
268 /*
269 * Get the board ID. We use this to see if we're dealing with
270 * a buslogic card or an aha card (or clone).
271 */
272 error = aha_cmd(aha, AOP_INQUIRE_BOARD_ID, NULL, /*parmlen*/0,
273 (uint8_t*)&board_id, sizeof(board_id), DEFAULT_CMD_TIMEOUT);
274 if (error != 0) {
275 PRVERB((aha->dev, "INQUIRE failed %x\n", error));
276 return (ENXIO);
277 }
278 aha->fw_major = board_id.firmware_rev_major;
279 aha->fw_minor = board_id.firmware_rev_minor;
280 aha->boardid = board_id.board_type;
281
282 /*
283 * The Buslogic cards have an id of either 0x41 or 0x42. So
284 * if those come up in the probe, we test the geometry register
285 * of the board. Adaptec boards that are this old will not have
286 * this register, and return 0xff, while buslogic cards will return
287 * something different.
288 *
289 * It appears that for reasons unknow, for the for the
290 * aha-1542B cards, we need to wait a little bit before trying
291 * to read the geometry register. I picked 10ms since we have
292 * reports that a for loop to 1000 did the trick, and this
293 * errs on the side of conservatism. Besides, no one will
294 * notice a 10mS delay here, even the 1542B card users :-)
295 *
296 * Some compatible cards return 0 here. Some cards also
297 * seem to return 0x7f.
298 *
299 * XXX I'm not sure how this will impact other cloned cards
300 *
301 * This really should be replaced with the esetup command, since
302 * that appears to be more reliable. This becomes more and more
303 * true over time as we discover more cards that don't read the
304 * geometry register consistantly.
305 */
306 if (aha->boardid <= 0x42) {
307 /* Wait 10ms before reading */
308 DELAY(10000);
309 status = aha_inb(aha, GEOMETRY_REG);
310 if (status != 0xff && status != 0x00 && status != 0x7f) {
311 PRVERB((aha->dev, "Geometry Register test failed %#x\n",
312 status));
313 return (ENXIO);
314 }
315 }
316
317 return (0);
318 }
319
320 /*
321 * Pull the boards setup information and record it in our softc.
322 */
323 int
aha_fetch_adapter_info(struct aha_softc * aha)324 aha_fetch_adapter_info(struct aha_softc *aha)
325 {
326 setup_data_t setup_info;
327 config_data_t config_data;
328 uint8_t length_param;
329 int error;
330 struct aha_extbios extbios;
331
332 switch (aha->boardid) {
333 case BOARD_1540_16HEAD_BIOS:
334 snprintf(aha->model, sizeof(aha->model), "1540 16 head BIOS");
335 break;
336 case BOARD_1540_64HEAD_BIOS:
337 snprintf(aha->model, sizeof(aha->model), "1540 64 head BIOS");
338 break;
339 case BOARD_1542:
340 snprintf(aha->model, sizeof(aha->model), "1540/1542 64 head BIOS");
341 break;
342 case BOARD_1640:
343 snprintf(aha->model, sizeof(aha->model), "1640");
344 break;
345 case BOARD_1740:
346 snprintf(aha->model, sizeof(aha->model), "1740A/1742A/1744");
347 break;
348 case BOARD_1542C:
349 snprintf(aha->model, sizeof(aha->model), "1542C");
350 break;
351 case BOARD_1542CF:
352 snprintf(aha->model, sizeof(aha->model), "1542CF");
353 break;
354 case BOARD_1542CP:
355 snprintf(aha->model, sizeof(aha->model), "1542CP");
356 break;
357 default:
358 snprintf(aha->model, sizeof(aha->model), "Unknown");
359 break;
360 }
361 /*
362 * If we are a new type of 1542 board (anything newer than a 1542C)
363 * then disable the extended bios so that the
364 * mailbox interface is unlocked.
365 * This is also true for the 1542B Version 3.20. First Adaptec
366 * board that supports >1Gb drives.
367 * No need to check the extended bios flags as some of the
368 * extensions that cause us problems are not flagged in that byte.
369 */
370 if (PROBABLY_NEW_BOARD(aha->boardid) ||
371 (aha->boardid == 0x41
372 && aha->fw_major == 0x31 &&
373 aha->fw_minor >= 0x34)) {
374 error = aha_cmd(aha, AOP_RETURN_EXT_BIOS_INFO, NULL,
375 /*paramlen*/0, (u_char *)&extbios, sizeof(extbios),
376 DEFAULT_CMD_TIMEOUT);
377 if (error != 0) {
378 device_printf(aha->dev,
379 "AOP_RETURN_EXT_BIOS_INFO - Failed.");
380 return (error);
381 }
382 error = aha_cmd(aha, AOP_MBOX_IF_ENABLE, (uint8_t *)&extbios,
383 /*paramlen*/2, NULL, 0, DEFAULT_CMD_TIMEOUT);
384 if (error != 0) {
385 device_printf(aha->dev, "AOP_MBOX_IF_ENABLE - Failed.");
386 return (error);
387 }
388 }
389 if (aha->boardid < 0x41)
390 device_printf(aha->dev, "Warning: aha-1542A won't work.\n");
391
392 aha->max_sg = 17; /* Need >= 17 to do 64k I/O */
393 aha->diff_bus = 0;
394 aha->extended_lun = 0;
395 aha->extended_trans = 0;
396 aha->max_ccbs = 16;
397 /* Determine Sync/Wide/Disc settings */
398 length_param = sizeof(setup_info);
399 error = aha_cmd(aha, AOP_INQUIRE_SETUP_INFO, &length_param,
400 /*paramlen*/1, (uint8_t*)&setup_info, sizeof(setup_info),
401 DEFAULT_CMD_TIMEOUT);
402 if (error != 0) {
403 device_printf(aha->dev, "aha_fetch_adapter_info - Failed "
404 "Get Setup Info\n");
405 return (error);
406 }
407 if (setup_info.initiate_sync != 0) {
408 aha->sync_permitted = ALL_TARGETS;
409 }
410 aha->disc_permitted = ALL_TARGETS;
411
412 /* We need as many mailboxes as we can have ccbs */
413 aha->num_boxes = aha->max_ccbs;
414
415 /* Determine our SCSI ID */
416 error = aha_cmd(aha, AOP_INQUIRE_CONFIG, NULL, /*parmlen*/0,
417 (uint8_t*)&config_data, sizeof(config_data), DEFAULT_CMD_TIMEOUT);
418 if (error != 0) {
419 device_printf(aha->dev,
420 "aha_fetch_adapter_info - Failed Get Config\n");
421 return (error);
422 }
423 aha->scsi_id = config_data.scsi_id;
424 return (0);
425 }
426
427 /*
428 * Start the board, ready for normal operation
429 */
430 int
aha_init(struct aha_softc * aha)431 aha_init(struct aha_softc* aha)
432 {
433 /* Announce the Adapter */
434 device_printf(aha->dev, "AHA-%s FW Rev. %c.%c (ID=%x) ",
435 aha->model, aha->fw_major, aha->fw_minor, aha->boardid);
436
437 if (aha->diff_bus != 0)
438 printf("Diff ");
439
440 printf("SCSI Host Adapter, SCSI ID %d, %d CCBs\n", aha->scsi_id,
441 aha->max_ccbs);
442
443 /*
444 * Create our DMA tags. These tags define the kinds of device
445 * accessible memory allocations and memory mappings we will
446 * need to perform during normal operation.
447 *
448 * Unless we need to further restrict the allocation, we rely
449 * on the restrictions of the parent dmat, hence the common
450 * use of MAXADDR and MAXSIZE.
451 */
452
453 /* DMA tag for mapping buffers into device visible space. */
454 if (bus_dma_tag_create( /* parent */ aha->parent_dmat,
455 /* alignment */ 1,
456 /* boundary */ 0,
457 /* lowaddr */ BUS_SPACE_MAXADDR,
458 /* highaddr */ BUS_SPACE_MAXADDR,
459 /* filter */ NULL,
460 /* filterarg */ NULL,
461 /* maxsize */ DFLTPHYS,
462 /* nsegments */ AHA_NSEG,
463 /* maxsegsz */ BUS_SPACE_MAXSIZE_24BIT,
464 /* flags */ BUS_DMA_ALLOCNOW,
465 /* lockfunc */ busdma_lock_mutex,
466 /* lockarg */ &aha->lock,
467 &aha->buffer_dmat) != 0) {
468 goto error_exit;
469 }
470
471 aha->init_level++;
472 /* DMA tag for our mailboxes */
473 if (bus_dma_tag_create( /* parent */ aha->parent_dmat,
474 /* alignment */ 1,
475 /* boundary */ 0,
476 /* lowaddr */ BUS_SPACE_MAXADDR,
477 /* highaddr */ BUS_SPACE_MAXADDR,
478 /* filter */ NULL,
479 /* filterarg */ NULL,
480 /* maxsize */ aha->num_boxes *
481 (sizeof(aha_mbox_in_t) +
482 sizeof(aha_mbox_out_t)),
483 /* nsegments */ 1,
484 /* maxsegsz */ BUS_SPACE_MAXSIZE_24BIT,
485 /* flags */ 0,
486 /* lockfunc */ NULL,
487 /* lockarg */ NULL,
488 &aha->mailbox_dmat) != 0) {
489 goto error_exit;
490 }
491
492 aha->init_level++;
493
494 /* Allocation for our mailboxes */
495 if (bus_dmamem_alloc(aha->mailbox_dmat, (void **)&aha->out_boxes,
496 BUS_DMA_NOWAIT, &aha->mailbox_dmamap) != 0)
497 goto error_exit;
498
499 aha->init_level++;
500
501 /* And permanently map them */
502 bus_dmamap_load(aha->mailbox_dmat, aha->mailbox_dmamap,
503 aha->out_boxes, aha->num_boxes * (sizeof(aha_mbox_in_t) +
504 sizeof(aha_mbox_out_t)), ahamapmboxes, aha, /*flags*/0);
505
506 aha->init_level++;
507
508 aha->in_boxes = (aha_mbox_in_t *)&aha->out_boxes[aha->num_boxes];
509
510 ahainitmboxes(aha);
511
512 /* DMA tag for our ccb structures */
513 if (bus_dma_tag_create( /* parent */ aha->parent_dmat,
514 /* alignment */ 1,
515 /* boundary */ 0,
516 /* lowaddr */ BUS_SPACE_MAXADDR,
517 /* highaddr */ BUS_SPACE_MAXADDR,
518 /* filter */ NULL,
519 /* filterarg */ NULL,
520 /* maxsize */ aha->max_ccbs *
521 sizeof(struct aha_ccb),
522 /* nsegments */ 1,
523 /* maxsegsz */ BUS_SPACE_MAXSIZE_24BIT,
524 /* flags */ 0,
525 /* lockfunc */ NULL,
526 /* lockarg */ NULL,
527 &aha->ccb_dmat) != 0) {
528 goto error_exit;
529 }
530
531 aha->init_level++;
532
533 /* Allocation for our ccbs */
534 if (bus_dmamem_alloc(aha->ccb_dmat, (void **)&aha->aha_ccb_array,
535 BUS_DMA_NOWAIT, &aha->ccb_dmamap) != 0)
536 goto error_exit;
537
538 aha->init_level++;
539
540 /* And permanently map them */
541 bus_dmamap_load(aha->ccb_dmat, aha->ccb_dmamap, aha->aha_ccb_array,
542 aha->max_ccbs * sizeof(struct aha_ccb), ahamapccbs, aha, /*flags*/0);
543
544 aha->init_level++;
545
546 /* DMA tag for our S/G structures. We allocate in page sized chunks */
547 if (bus_dma_tag_create( /* parent */ aha->parent_dmat,
548 /* alignment */ 1,
549 /* boundary */ 0,
550 /* lowaddr */ BUS_SPACE_MAXADDR,
551 /* highaddr */ BUS_SPACE_MAXADDR,
552 /* filter */ NULL,
553 /* filterarg */ NULL,
554 /* maxsize */ PAGE_SIZE,
555 /* nsegments */ 1,
556 /* maxsegsz */ BUS_SPACE_MAXSIZE_24BIT,
557 /* flags */ 0,
558 /* lockfunc */ NULL,
559 /* lockarg */ NULL,
560 &aha->sg_dmat) != 0)
561 goto error_exit;
562
563 aha->init_level++;
564
565 /* Perform initial CCB allocation */
566 bzero(aha->aha_ccb_array, aha->max_ccbs * sizeof(struct aha_ccb));
567 ahaallocccbs(aha);
568
569 if (aha->num_ccbs == 0) {
570 device_printf(aha->dev,
571 "aha_init - Unable to allocate initial ccbs\n");
572 goto error_exit;
573 }
574
575 /*
576 * Note that we are going and return (to probe)
577 */
578 return (0);
579
580 error_exit:
581
582 return (ENXIO);
583 }
584
585 int
aha_attach(struct aha_softc * aha)586 aha_attach(struct aha_softc *aha)
587 {
588 int tagged_dev_openings;
589 struct cam_devq *devq;
590
591 /*
592 * We don't do tagged queueing, since the aha cards don't
593 * support it.
594 */
595 tagged_dev_openings = 0;
596
597 /*
598 * Create the device queue for our SIM.
599 */
600 devq = cam_simq_alloc(aha->max_ccbs - 1);
601 if (devq == NULL)
602 return (ENOMEM);
603
604 /*
605 * Construct our SIM entry
606 */
607 aha->sim = cam_sim_alloc(ahaaction, ahapoll, "aha", aha,
608 device_get_unit(aha->dev), &aha->lock, 2, tagged_dev_openings,
609 devq);
610 if (aha->sim == NULL) {
611 cam_simq_free(devq);
612 return (ENOMEM);
613 }
614 mtx_lock(&aha->lock);
615 if (xpt_bus_register(aha->sim, aha->dev, 0) != CAM_SUCCESS) {
616 cam_sim_free(aha->sim, /*free_devq*/TRUE);
617 mtx_unlock(&aha->lock);
618 return (ENXIO);
619 }
620 if (xpt_create_path(&aha->path, /*periph*/NULL, cam_sim_path(aha->sim),
621 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
622 xpt_bus_deregister(cam_sim_path(aha->sim));
623 cam_sim_free(aha->sim, /*free_devq*/TRUE);
624 mtx_unlock(&aha->lock);
625 return (ENXIO);
626 }
627 mtx_unlock(&aha->lock);
628
629 return (0);
630 }
631
632 static void
ahaallocccbs(struct aha_softc * aha)633 ahaallocccbs(struct aha_softc *aha)
634 {
635 struct aha_ccb *next_ccb;
636 struct sg_map_node *sg_map;
637 bus_addr_t physaddr;
638 aha_sg_t *segs;
639 int newcount;
640 int i;
641
642 next_ccb = &aha->aha_ccb_array[aha->num_ccbs];
643
644 sg_map = malloc(sizeof(*sg_map), M_DEVBUF, M_NOWAIT);
645
646 if (sg_map == NULL)
647 return;
648
649 /* Allocate S/G space for the next batch of CCBS */
650 if (bus_dmamem_alloc(aha->sg_dmat, (void **)&sg_map->sg_vaddr,
651 BUS_DMA_NOWAIT, &sg_map->sg_dmamap) != 0) {
652 free(sg_map, M_DEVBUF);
653 return;
654 }
655
656 SLIST_INSERT_HEAD(&aha->sg_maps, sg_map, links);
657
658 bus_dmamap_load(aha->sg_dmat, sg_map->sg_dmamap, sg_map->sg_vaddr,
659 PAGE_SIZE, ahamapsgs, aha, /*flags*/0);
660
661 segs = sg_map->sg_vaddr;
662 physaddr = sg_map->sg_physaddr;
663
664 newcount = (PAGE_SIZE / (AHA_NSEG * sizeof(aha_sg_t)));
665 for (i = 0; aha->num_ccbs < aha->max_ccbs && i < newcount; i++) {
666 int error;
667
668 next_ccb->sg_list = segs;
669 next_ccb->sg_list_phys = physaddr;
670 next_ccb->flags = ACCB_FREE;
671 callout_init_mtx(&next_ccb->timer, &aha->lock, 0);
672 error = bus_dmamap_create(aha->buffer_dmat, /*flags*/0,
673 &next_ccb->dmamap);
674 if (error != 0)
675 break;
676 SLIST_INSERT_HEAD(&aha->free_aha_ccbs, next_ccb, links);
677 segs += AHA_NSEG;
678 physaddr += (AHA_NSEG * sizeof(aha_sg_t));
679 next_ccb++;
680 aha->num_ccbs++;
681 }
682
683 /* Reserve a CCB for error recovery */
684 if (aha->recovery_accb == NULL) {
685 aha->recovery_accb = SLIST_FIRST(&aha->free_aha_ccbs);
686 SLIST_REMOVE_HEAD(&aha->free_aha_ccbs, links);
687 }
688 }
689
690 static __inline void
ahafreeccb(struct aha_softc * aha,struct aha_ccb * accb)691 ahafreeccb(struct aha_softc *aha, struct aha_ccb *accb)
692 {
693
694 if (!dumping)
695 mtx_assert(&aha->lock, MA_OWNED);
696 if ((accb->flags & ACCB_ACTIVE) != 0)
697 LIST_REMOVE(&accb->ccb->ccb_h, sim_links.le);
698 if (aha->resource_shortage != 0
699 && (accb->ccb->ccb_h.status & CAM_RELEASE_SIMQ) == 0) {
700 accb->ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
701 aha->resource_shortage = FALSE;
702 }
703 accb->flags = ACCB_FREE;
704 SLIST_INSERT_HEAD(&aha->free_aha_ccbs, accb, links);
705 aha->active_ccbs--;
706 }
707
708 static struct aha_ccb*
ahagetccb(struct aha_softc * aha)709 ahagetccb(struct aha_softc *aha)
710 {
711 struct aha_ccb* accb;
712
713 if (!dumping)
714 mtx_assert(&aha->lock, MA_OWNED);
715 if ((accb = SLIST_FIRST(&aha->free_aha_ccbs)) != NULL) {
716 SLIST_REMOVE_HEAD(&aha->free_aha_ccbs, links);
717 aha->active_ccbs++;
718 } else if (aha->num_ccbs < aha->max_ccbs) {
719 ahaallocccbs(aha);
720 accb = SLIST_FIRST(&aha->free_aha_ccbs);
721 if (accb == NULL)
722 device_printf(aha->dev, "Can't malloc ACCB\n");
723 else {
724 SLIST_REMOVE_HEAD(&aha->free_aha_ccbs, links);
725 aha->active_ccbs++;
726 }
727 }
728
729 return (accb);
730 }
731
732 static void
ahaaction(struct cam_sim * sim,union ccb * ccb)733 ahaaction(struct cam_sim *sim, union ccb *ccb)
734 {
735 struct aha_softc *aha;
736
737 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahaaction\n"));
738
739 aha = (struct aha_softc *)cam_sim_softc(sim);
740 mtx_assert(&aha->lock, MA_OWNED);
741
742 switch (ccb->ccb_h.func_code) {
743 /* Common cases first */
744 case XPT_SCSI_IO: /* Execute the requested I/O operation */
745 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ {
746 struct aha_ccb *accb;
747 struct aha_hccb *hccb;
748
749 /*
750 * Get an accb to use.
751 */
752 if ((accb = ahagetccb(aha)) == NULL) {
753 aha->resource_shortage = TRUE;
754 xpt_freeze_simq(aha->sim, /*count*/1);
755 ccb->ccb_h.status = CAM_REQUEUE_REQ;
756 xpt_done(ccb);
757 return;
758 }
759 hccb = &accb->hccb;
760
761 /*
762 * So we can find the ACCB when an abort is requested
763 */
764 accb->ccb = ccb;
765 ccb->ccb_h.ccb_accb_ptr = accb;
766 ccb->ccb_h.ccb_aha_ptr = aha;
767
768 /*
769 * Put all the arguments for the xfer in the accb
770 */
771 hccb->target = ccb->ccb_h.target_id;
772 hccb->lun = ccb->ccb_h.target_lun;
773 hccb->ahastat = 0;
774 hccb->sdstat = 0;
775
776 if (ccb->ccb_h.func_code == XPT_SCSI_IO) {
777 struct ccb_scsiio *csio;
778 struct ccb_hdr *ccbh;
779 int error;
780
781 csio = &ccb->csio;
782 ccbh = &csio->ccb_h;
783 hccb->opcode = aha->ccb_ccb_opcode;
784 hccb->datain = (ccb->ccb_h.flags & CAM_DIR_IN) != 0;
785 hccb->dataout = (ccb->ccb_h.flags & CAM_DIR_OUT) != 0;
786 hccb->cmd_len = csio->cdb_len;
787 if (hccb->cmd_len > sizeof(hccb->scsi_cdb)) {
788 ccb->ccb_h.status = CAM_REQ_INVALID;
789 ahafreeccb(aha, accb);
790 xpt_done(ccb);
791 return;
792 }
793 hccb->sense_len = csio->sense_len;
794 if ((ccbh->flags & CAM_CDB_POINTER) != 0) {
795 if ((ccbh->flags & CAM_CDB_PHYS) == 0) {
796 bcopy(csio->cdb_io.cdb_ptr,
797 hccb->scsi_cdb, hccb->cmd_len);
798 } else {
799 /* I guess I could map it in... */
800 ccbh->status = CAM_REQ_INVALID;
801 ahafreeccb(aha, accb);
802 xpt_done(ccb);
803 return;
804 }
805 } else {
806 bcopy(csio->cdb_io.cdb_bytes,
807 hccb->scsi_cdb, hccb->cmd_len);
808 }
809 /*
810 * If we have any data to send with this command,
811 * map it into bus space.
812 */
813
814 error = bus_dmamap_load_ccb(
815 aha->buffer_dmat,
816 accb->dmamap,
817 ccb,
818 ahaexecuteccb,
819 accb,
820 /*flags*/0);
821 if (error == EINPROGRESS) {
822 /*
823 * So as to maintain ordering, freeze the
824 * controller queue until our mapping is
825 * returned.
826 */
827 xpt_freeze_simq(aha->sim, 1);
828 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
829 }
830 } else {
831 hccb->opcode = INITIATOR_BUS_DEV_RESET;
832 /* No data transfer */
833 hccb->datain = TRUE;
834 hccb->dataout = TRUE;
835 hccb->cmd_len = 0;
836 hccb->sense_len = 0;
837 ahaexecuteccb(accb, NULL, 0, 0);
838 }
839 break;
840 }
841 case XPT_EN_LUN: /* Enable LUN as a target */
842 case XPT_TARGET_IO: /* Execute target I/O request */
843 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */
844 case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/
845 case XPT_ABORT: /* Abort the specified CCB */
846 /* XXX Implement */
847 ccb->ccb_h.status = CAM_REQ_INVALID;
848 xpt_done(ccb);
849 break;
850 case XPT_SET_TRAN_SETTINGS:
851 /* XXX Implement */
852 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
853 xpt_done(ccb);
854 break;
855 case XPT_GET_TRAN_SETTINGS:
856 /* Get default/user set transfer settings for the target */
857 {
858 struct ccb_trans_settings *cts = &ccb->cts;
859 u_int target_mask = 0x01 << ccb->ccb_h.target_id;
860 struct ccb_trans_settings_scsi *scsi =
861 &cts->proto_specific.scsi;
862 struct ccb_trans_settings_spi *spi =
863 &cts->xport_specific.spi;
864
865 cts->protocol = PROTO_SCSI;
866 cts->protocol_version = SCSI_REV_2;
867 cts->transport = XPORT_SPI;
868 cts->transport_version = 2;
869 if (cts->type == CTS_TYPE_USER_SETTINGS) {
870 spi->flags = 0;
871 if ((aha->disc_permitted & target_mask) != 0)
872 spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
873 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
874 if ((aha->sync_permitted & target_mask) != 0) {
875 if (aha->boardid >= BOARD_1542CF)
876 spi->sync_period = 25;
877 else
878 spi->sync_period = 50;
879 } else {
880 spi->sync_period = 0;
881 }
882
883 if (spi->sync_period != 0)
884 spi->sync_offset = 15;
885
886 spi->valid = CTS_SPI_VALID_SYNC_RATE
887 | CTS_SPI_VALID_SYNC_OFFSET
888 | CTS_SPI_VALID_BUS_WIDTH
889 | CTS_SPI_VALID_DISC;
890 scsi->valid = CTS_SCSI_VALID_TQ;
891 } else {
892 ahafetchtransinfo(aha, cts);
893 }
894
895 ccb->ccb_h.status = CAM_REQ_CMP;
896 xpt_done(ccb);
897 break;
898 }
899 case XPT_CALC_GEOMETRY:
900 {
901 struct ccb_calc_geometry *ccg;
902 uint32_t size_mb;
903 uint32_t secs_per_cylinder;
904
905 ccg = &ccb->ccg;
906 size_mb = ccg->volume_size
907 / ((1024L * 1024L) / ccg->block_size);
908 if (size_mb >= 1024 && (aha->extended_trans != 0)) {
909 if (size_mb >= 2048) {
910 ccg->heads = 255;
911 ccg->secs_per_track = 63;
912 } else {
913 ccg->heads = 128;
914 ccg->secs_per_track = 32;
915 }
916 } else {
917 ccg->heads = 64;
918 ccg->secs_per_track = 32;
919 }
920 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
921 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
922 ccb->ccb_h.status = CAM_REQ_CMP;
923 xpt_done(ccb);
924 break;
925 }
926 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
927 ahareset(aha, /*hardreset*/TRUE);
928 ccb->ccb_h.status = CAM_REQ_CMP;
929 xpt_done(ccb);
930 break;
931 case XPT_TERM_IO: /* Terminate the I/O process */
932 /* XXX Implement */
933 ccb->ccb_h.status = CAM_REQ_INVALID;
934 xpt_done(ccb);
935 break;
936 case XPT_PATH_INQ: /* Path routing inquiry */
937 {
938 struct ccb_pathinq *cpi = &ccb->cpi;
939
940 cpi->version_num = 1; /* XXX??? */
941 cpi->hba_inquiry = PI_SDTR_ABLE;
942 cpi->target_sprt = 0;
943 cpi->hba_misc = 0;
944 cpi->hba_eng_cnt = 0;
945 cpi->max_target = 7;
946 cpi->max_lun = 7;
947 cpi->initiator_id = aha->scsi_id;
948 cpi->bus_id = cam_sim_bus(sim);
949 cpi->base_transfer_speed = 3300;
950 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
951 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN);
952 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
953 cpi->unit_number = cam_sim_unit(sim);
954 cpi->transport = XPORT_SPI;
955 cpi->transport_version = 2;
956 cpi->protocol = PROTO_SCSI;
957 cpi->protocol_version = SCSI_REV_2;
958 cpi->ccb_h.status = CAM_REQ_CMP;
959 xpt_done(ccb);
960 break;
961 }
962 default:
963 ccb->ccb_h.status = CAM_REQ_INVALID;
964 xpt_done(ccb);
965 break;
966 }
967 }
968
969 static void
ahaexecuteccb(void * arg,bus_dma_segment_t * dm_segs,int nseg,int error)970 ahaexecuteccb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
971 {
972 struct aha_ccb *accb;
973 union ccb *ccb;
974 struct aha_softc *aha;
975 uint32_t paddr;
976
977 accb = (struct aha_ccb *)arg;
978 ccb = accb->ccb;
979 aha = (struct aha_softc *)ccb->ccb_h.ccb_aha_ptr;
980
981 if (error != 0) {
982 if (error != EFBIG)
983 device_printf(aha->dev,
984 "Unexepected error 0x%x returned from "
985 "bus_dmamap_load\n", error);
986 if (ccb->ccb_h.status == CAM_REQ_INPROG) {
987 xpt_freeze_devq(ccb->ccb_h.path, /*count*/1);
988 ccb->ccb_h.status = CAM_REQ_TOO_BIG|CAM_DEV_QFRZN;
989 }
990 ahafreeccb(aha, accb);
991 xpt_done(ccb);
992 return;
993 }
994
995 if (nseg != 0) {
996 aha_sg_t *sg;
997 bus_dma_segment_t *end_seg;
998 bus_dmasync_op_t op;
999
1000 end_seg = dm_segs + nseg;
1001
1002 /* Copy the segments into our SG list */
1003 sg = accb->sg_list;
1004 while (dm_segs < end_seg) {
1005 ahautoa24(dm_segs->ds_len, sg->len);
1006 ahautoa24(dm_segs->ds_addr, sg->addr);
1007 sg++;
1008 dm_segs++;
1009 }
1010
1011 if (nseg > 1) {
1012 accb->hccb.opcode = aha->ccb_sg_opcode;
1013 ahautoa24((sizeof(aha_sg_t) * nseg),
1014 accb->hccb.data_len);
1015 ahautoa24(accb->sg_list_phys, accb->hccb.data_addr);
1016 } else {
1017 bcopy(accb->sg_list->len, accb->hccb.data_len, 3);
1018 bcopy(accb->sg_list->addr, accb->hccb.data_addr, 3);
1019 }
1020
1021 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
1022 op = BUS_DMASYNC_PREREAD;
1023 else
1024 op = BUS_DMASYNC_PREWRITE;
1025
1026 bus_dmamap_sync(aha->buffer_dmat, accb->dmamap, op);
1027
1028 } else {
1029 accb->hccb.opcode = INITIATOR_CCB;
1030 ahautoa24(0, accb->hccb.data_len);
1031 ahautoa24(0, accb->hccb.data_addr);
1032 }
1033
1034 /*
1035 * Last time we need to check if this CCB needs to
1036 * be aborted.
1037 */
1038 if (ccb->ccb_h.status != CAM_REQ_INPROG) {
1039 if (nseg != 0)
1040 bus_dmamap_unload(aha->buffer_dmat, accb->dmamap);
1041 ahafreeccb(aha, accb);
1042 xpt_done(ccb);
1043 return;
1044 }
1045
1046 accb->flags = ACCB_ACTIVE;
1047 ccb->ccb_h.status |= CAM_SIM_QUEUED;
1048 LIST_INSERT_HEAD(&aha->pending_ccbs, &ccb->ccb_h, sim_links.le);
1049
1050 callout_reset_sbt(&accb->timer, SBT_1MS * ccb->ccb_h.timeout, 0,
1051 ahatimeout, accb, 0);
1052
1053 /* Tell the adapter about this command */
1054 if (aha->cur_outbox->action_code != AMBO_FREE) {
1055 /*
1056 * We should never encounter a busy mailbox.
1057 * If we do, warn the user, and treat it as
1058 * a resource shortage. If the controller is
1059 * hung, one of the pending transactions will
1060 * timeout causing us to start recovery operations.
1061 */
1062 device_printf(aha->dev,
1063 "Encountered busy mailbox with %d out of %d "
1064 "commands active!!!", aha->active_ccbs, aha->max_ccbs);
1065 callout_stop(&accb->timer);
1066 if (nseg != 0)
1067 bus_dmamap_unload(aha->buffer_dmat, accb->dmamap);
1068 ahafreeccb(aha, accb);
1069 aha->resource_shortage = TRUE;
1070 xpt_freeze_simq(aha->sim, /*count*/1);
1071 ccb->ccb_h.status = CAM_REQUEUE_REQ;
1072 xpt_done(ccb);
1073 return;
1074 }
1075 paddr = ahaccbvtop(aha, accb);
1076 ahautoa24(paddr, aha->cur_outbox->ccb_addr);
1077 aha->cur_outbox->action_code = AMBO_START;
1078 aha_outb(aha, COMMAND_REG, AOP_START_MBOX);
1079
1080 ahanextoutbox(aha);
1081 }
1082
1083 void
aha_intr(void * arg)1084 aha_intr(void *arg)
1085 {
1086 struct aha_softc *aha;
1087
1088 aha = arg;
1089 mtx_lock(&aha->lock);
1090 aha_intr_locked(aha);
1091 mtx_unlock(&aha->lock);
1092 }
1093
1094 void
aha_intr_locked(struct aha_softc * aha)1095 aha_intr_locked(struct aha_softc *aha)
1096 {
1097 u_int intstat;
1098 uint32_t paddr;
1099
1100 while (((intstat = aha_inb(aha, INTSTAT_REG)) & INTR_PENDING) != 0) {
1101 if ((intstat & CMD_COMPLETE) != 0) {
1102 aha->latched_status = aha_inb(aha, STATUS_REG);
1103 aha->command_cmp = TRUE;
1104 }
1105
1106 aha_outb(aha, CONTROL_REG, RESET_INTR);
1107
1108 if ((intstat & IMB_LOADED) != 0) {
1109 while (aha->cur_inbox->comp_code != AMBI_FREE) {
1110 paddr = aha_a24tou(aha->cur_inbox->ccb_addr);
1111 ahadone(aha, ahaccbptov(aha, paddr),
1112 aha->cur_inbox->comp_code);
1113 aha->cur_inbox->comp_code = AMBI_FREE;
1114 ahanextinbox(aha);
1115 }
1116 }
1117
1118 if ((intstat & SCSI_BUS_RESET) != 0) {
1119 ahareset(aha, /*hardreset*/FALSE);
1120 }
1121 }
1122 }
1123
1124 static void
ahadone(struct aha_softc * aha,struct aha_ccb * accb,aha_mbi_comp_code_t comp_code)1125 ahadone(struct aha_softc *aha, struct aha_ccb *accb, aha_mbi_comp_code_t comp_code)
1126 {
1127 union ccb *ccb;
1128 struct ccb_scsiio *csio;
1129
1130 ccb = accb->ccb;
1131 csio = &accb->ccb->csio;
1132
1133 if ((accb->flags & ACCB_ACTIVE) == 0) {
1134 device_printf(aha->dev,
1135 "ahadone - Attempt to free non-active ACCB %p\n",
1136 (void *)accb);
1137 return;
1138 }
1139
1140 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
1141 bus_dmasync_op_t op;
1142
1143 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
1144 op = BUS_DMASYNC_POSTREAD;
1145 else
1146 op = BUS_DMASYNC_POSTWRITE;
1147 bus_dmamap_sync(aha->buffer_dmat, accb->dmamap, op);
1148 bus_dmamap_unload(aha->buffer_dmat, accb->dmamap);
1149 }
1150
1151 if (accb == aha->recovery_accb) {
1152 /*
1153 * The recovery ACCB does not have a CCB associated
1154 * with it, so short circuit the normal error handling.
1155 * We now traverse our list of pending CCBs and process
1156 * any that were terminated by the recovery CCBs action.
1157 * We also reinstate timeouts for all remaining, pending,
1158 * CCBs.
1159 */
1160 struct cam_path *path;
1161 struct ccb_hdr *ccb_h;
1162 cam_status error;
1163
1164 /* Notify all clients that a BDR occured */
1165 error = xpt_create_path(&path, /*periph*/NULL,
1166 cam_sim_path(aha->sim), accb->hccb.target,
1167 CAM_LUN_WILDCARD);
1168
1169 if (error == CAM_REQ_CMP) {
1170 xpt_async(AC_SENT_BDR, path, NULL);
1171 xpt_free_path(path);
1172 }
1173
1174 ccb_h = LIST_FIRST(&aha->pending_ccbs);
1175 while (ccb_h != NULL) {
1176 struct aha_ccb *pending_accb;
1177
1178 pending_accb = (struct aha_ccb *)ccb_h->ccb_accb_ptr;
1179 if (pending_accb->hccb.target == accb->hccb.target) {
1180 pending_accb->hccb.ahastat = AHASTAT_HA_BDR;
1181 ccb_h = LIST_NEXT(ccb_h, sim_links.le);
1182 ahadone(aha, pending_accb, AMBI_ERROR);
1183 } else {
1184 callout_reset_sbt(&pending_accb->timer,
1185 SBT_1MS * ccb_h->timeout, 0, ahatimeout,
1186 pending_accb, 0);
1187 ccb_h = LIST_NEXT(ccb_h, sim_links.le);
1188 }
1189 }
1190 device_printf(aha->dev, "No longer in timeout\n");
1191 return;
1192 }
1193
1194 callout_stop(&accb->timer);
1195
1196 switch (comp_code) {
1197 case AMBI_FREE:
1198 device_printf(aha->dev,
1199 "ahadone - CCB completed with free status!\n");
1200 break;
1201 case AMBI_NOT_FOUND:
1202 device_printf(aha->dev,
1203 "ahadone - CCB Abort failed to find CCB\n");
1204 break;
1205 case AMBI_ABORT:
1206 case AMBI_ERROR:
1207 /* An error occured */
1208 if (accb->hccb.opcode < INITIATOR_CCB_WRESID)
1209 csio->resid = 0;
1210 else
1211 csio->resid = aha_a24tou(accb->hccb.data_len);
1212 switch(accb->hccb.ahastat) {
1213 case AHASTAT_DATARUN_ERROR:
1214 {
1215 if (csio->resid <= 0) {
1216 csio->ccb_h.status = CAM_DATA_RUN_ERR;
1217 break;
1218 }
1219 /* FALLTHROUGH */
1220 }
1221 case AHASTAT_NOERROR:
1222 csio->scsi_status = accb->hccb.sdstat;
1223 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
1224 switch(csio->scsi_status) {
1225 case SCSI_STATUS_CHECK_COND:
1226 case SCSI_STATUS_CMD_TERMINATED:
1227 csio->ccb_h.status |= CAM_AUTOSNS_VALID;
1228 /*
1229 * The aha writes the sense data at different
1230 * offsets based on the scsi cmd len
1231 */
1232 bcopy((caddr_t) &accb->hccb.scsi_cdb +
1233 accb->hccb.cmd_len,
1234 (caddr_t) &csio->sense_data,
1235 accb->hccb.sense_len);
1236 break;
1237 default:
1238 break;
1239 case SCSI_STATUS_OK:
1240 csio->ccb_h.status = CAM_REQ_CMP;
1241 break;
1242 }
1243 break;
1244 case AHASTAT_SELTIMEOUT:
1245 csio->ccb_h.status = CAM_SEL_TIMEOUT;
1246 break;
1247 case AHASTAT_UNEXPECTED_BUSFREE:
1248 csio->ccb_h.status = CAM_UNEXP_BUSFREE;
1249 break;
1250 case AHASTAT_INVALID_PHASE:
1251 csio->ccb_h.status = CAM_SEQUENCE_FAIL;
1252 break;
1253 case AHASTAT_INVALID_ACTION_CODE:
1254 panic("%s: Inavlid Action code", aha_name(aha));
1255 break;
1256 case AHASTAT_INVALID_OPCODE:
1257 if (accb->hccb.opcode < INITIATOR_CCB_WRESID)
1258 panic("%s: Invalid CCB Opcode %x hccb = %p",
1259 aha_name(aha), accb->hccb.opcode,
1260 &accb->hccb);
1261 device_printf(aha->dev,
1262 "AHA-1540A compensation failed\n");
1263 xpt_freeze_devq(ccb->ccb_h.path, /*count*/1);
1264 csio->ccb_h.status = CAM_REQUEUE_REQ;
1265 break;
1266 case AHASTAT_LINKED_CCB_LUN_MISMATCH:
1267 /* We don't even support linked commands... */
1268 panic("%s: Linked CCB Lun Mismatch", aha_name(aha));
1269 break;
1270 case AHASTAT_INVALID_CCB_OR_SG_PARAM:
1271 panic("%s: Invalid CCB or SG list", aha_name(aha));
1272 break;
1273 case AHASTAT_HA_SCSI_BUS_RESET:
1274 if ((csio->ccb_h.status & CAM_STATUS_MASK)
1275 != CAM_CMD_TIMEOUT)
1276 csio->ccb_h.status = CAM_SCSI_BUS_RESET;
1277 break;
1278 case AHASTAT_HA_BDR:
1279 if ((accb->flags & ACCB_DEVICE_RESET) == 0)
1280 csio->ccb_h.status = CAM_BDR_SENT;
1281 else
1282 csio->ccb_h.status = CAM_CMD_TIMEOUT;
1283 break;
1284 }
1285 if (csio->ccb_h.status != CAM_REQ_CMP) {
1286 xpt_freeze_devq(csio->ccb_h.path, /*count*/1);
1287 csio->ccb_h.status |= CAM_DEV_QFRZN;
1288 }
1289 if ((accb->flags & ACCB_RELEASE_SIMQ) != 0)
1290 ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
1291 ahafreeccb(aha, accb);
1292 xpt_done(ccb);
1293 break;
1294 case AMBI_OK:
1295 /* All completed without incident */
1296 /* XXX DO WE NEED TO COPY SENSE BYTES HERE???? XXX */
1297 /* I don't think so since it works???? */
1298 ccb->ccb_h.status |= CAM_REQ_CMP;
1299 if ((accb->flags & ACCB_RELEASE_SIMQ) != 0)
1300 ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
1301 ahafreeccb(aha, accb);
1302 xpt_done(ccb);
1303 break;
1304 }
1305 }
1306
1307 static int
ahareset(struct aha_softc * aha,int hard_reset)1308 ahareset(struct aha_softc* aha, int hard_reset)
1309 {
1310 struct ccb_hdr *ccb_h;
1311 u_int status;
1312 u_int timeout;
1313 uint8_t reset_type;
1314
1315 if (hard_reset != 0)
1316 reset_type = HARD_RESET;
1317 else
1318 reset_type = SOFT_RESET;
1319 aha_outb(aha, CONTROL_REG, reset_type);
1320
1321 /* Wait 5sec. for Diagnostic start */
1322 timeout = 5 * 10000;
1323 while (--timeout) {
1324 status = aha_inb(aha, STATUS_REG);
1325 if ((status & DIAG_ACTIVE) != 0)
1326 break;
1327 DELAY(100);
1328 }
1329 if (timeout == 0) {
1330 PRVERB((aha->dev, "ahareset - Diagnostic Active failed to "
1331 "assert. status = %#x\n", status));
1332 return (ETIMEDOUT);
1333 }
1334
1335 /* Wait 10sec. for Diagnostic end */
1336 timeout = 10 * 10000;
1337 while (--timeout) {
1338 status = aha_inb(aha, STATUS_REG);
1339 if ((status & DIAG_ACTIVE) == 0)
1340 break;
1341 DELAY(100);
1342 }
1343 if (timeout == 0) {
1344 panic("%s: ahareset - Diagnostic Active failed to drop. "
1345 "status = 0x%x\n", aha_name(aha), status);
1346 return (ETIMEDOUT);
1347 }
1348
1349 /* Wait for the host adapter to become ready or report a failure */
1350 timeout = 10000;
1351 while (--timeout) {
1352 status = aha_inb(aha, STATUS_REG);
1353 if ((status & (DIAG_FAIL|HA_READY|DATAIN_REG_READY)) != 0)
1354 break;
1355 DELAY(100);
1356 }
1357 if (timeout == 0) {
1358 device_printf(aha->dev, "ahareset - Host adapter failed to "
1359 "come ready. status = 0x%x\n", status);
1360 return (ETIMEDOUT);
1361 }
1362
1363 /* If the diagnostics failed, tell the user */
1364 if ((status & DIAG_FAIL) != 0
1365 || (status & HA_READY) == 0) {
1366 device_printf(aha->dev, "ahareset - Adapter failed diag\n");
1367
1368 if ((status & DATAIN_REG_READY) != 0)
1369 device_printf(aha->dev, "ahareset - Host Adapter "
1370 "Error code = 0x%x\n", aha_inb(aha, DATAIN_REG));
1371 return (ENXIO);
1372 }
1373
1374 /* If we've attached to the XPT, tell it about the event */
1375 if (aha->path != NULL)
1376 xpt_async(AC_BUS_RESET, aha->path, NULL);
1377
1378 /*
1379 * Perform completion processing for all outstanding CCBs.
1380 */
1381 while ((ccb_h = LIST_FIRST(&aha->pending_ccbs)) != NULL) {
1382 struct aha_ccb *pending_accb;
1383
1384 pending_accb = (struct aha_ccb *)ccb_h->ccb_accb_ptr;
1385 pending_accb->hccb.ahastat = AHASTAT_HA_SCSI_BUS_RESET;
1386 ahadone(aha, pending_accb, AMBI_ERROR);
1387 }
1388
1389 /* If we've allocated mailboxes, initialize them */
1390 /* Must be done after we've aborted our queue, or aha_cmd fails */
1391 if (aha->init_level > 4)
1392 ahainitmboxes(aha);
1393
1394 return (0);
1395 }
1396
1397 /*
1398 * Send a command to the adapter.
1399 */
1400 int
aha_cmd(struct aha_softc * aha,aha_op_t opcode,uint8_t * params,u_int param_len,uint8_t * reply_data,u_int reply_len,u_int cmd_timeout)1401 aha_cmd(struct aha_softc *aha, aha_op_t opcode, uint8_t *params,
1402 u_int param_len, uint8_t *reply_data, u_int reply_len,
1403 u_int cmd_timeout)
1404 {
1405 u_int timeout;
1406 u_int status;
1407 u_int saved_status;
1408 u_int intstat;
1409 u_int reply_buf_size;
1410 int cmd_complete;
1411 int error;
1412
1413 /* No data returned to start */
1414 reply_buf_size = reply_len;
1415 reply_len = 0;
1416 intstat = 0;
1417 cmd_complete = 0;
1418 saved_status = 0;
1419 error = 0;
1420
1421 /*
1422 * All commands except for the "start mailbox" and the "enable
1423 * outgoing mailbox read interrupt" commands cannot be issued
1424 * while there are pending transactions. Freeze our SIMQ
1425 * and wait for all completions to occur if necessary.
1426 */
1427 timeout = 10000;
1428 while (LIST_FIRST(&aha->pending_ccbs) != NULL && --timeout) {
1429 /* Fire the interrupt handler in case interrupts are blocked */
1430 aha_intr(aha);
1431 DELAY(10);
1432 }
1433
1434 if (timeout == 0) {
1435 device_printf(aha->dev,
1436 "aha_cmd: Timeout waiting for adapter idle\n");
1437 return (ETIMEDOUT);
1438 }
1439 aha->command_cmp = 0;
1440 /*
1441 * Wait up to 10 sec. for the adapter to become
1442 * ready to accept commands.
1443 */
1444 timeout = 100000;
1445 while (--timeout) {
1446 status = aha_inb(aha, STATUS_REG);
1447 if ((status & HA_READY) != 0 && (status & CMD_REG_BUSY) == 0)
1448 break;
1449 /*
1450 * Throw away any pending data which may be
1451 * left over from earlier commands that we
1452 * timedout on.
1453 */
1454 if ((status & DATAIN_REG_READY) != 0)
1455 (void)aha_inb(aha, DATAIN_REG);
1456 DELAY(100);
1457 }
1458 if (timeout == 0) {
1459 device_printf(aha->dev, "aha_cmd: Timeout waiting for adapter"
1460 " ready, status = 0x%x\n", status);
1461 return (ETIMEDOUT);
1462 }
1463
1464 /*
1465 * Send the opcode followed by any necessary parameter bytes.
1466 */
1467 aha_outb(aha, COMMAND_REG, opcode);
1468
1469 /*
1470 * Wait for up to 1sec to get the parameter list sent
1471 */
1472 timeout = 10000;
1473 while (param_len && --timeout) {
1474 DELAY(100);
1475 status = aha_inb(aha, STATUS_REG);
1476 intstat = aha_inb(aha, INTSTAT_REG);
1477
1478 if ((intstat & (INTR_PENDING|CMD_COMPLETE))
1479 == (INTR_PENDING|CMD_COMPLETE)) {
1480 saved_status = status;
1481 cmd_complete = 1;
1482 break;
1483 }
1484
1485 if (aha->command_cmp != 0) {
1486 saved_status = aha->latched_status;
1487 cmd_complete = 1;
1488 break;
1489 }
1490 if ((status & DATAIN_REG_READY) != 0)
1491 break;
1492 if ((status & CMD_REG_BUSY) == 0) {
1493 aha_outb(aha, COMMAND_REG, *params++);
1494 param_len--;
1495 timeout = 10000;
1496 }
1497 }
1498 if (timeout == 0) {
1499 device_printf(aha->dev, "aha_cmd: Timeout sending parameters, "
1500 "status = 0x%x\n", status);
1501 error = ETIMEDOUT;
1502 }
1503
1504 /*
1505 * For all other commands, we wait for any output data
1506 * and the final comand completion interrupt.
1507 */
1508 while (cmd_complete == 0 && --cmd_timeout) {
1509
1510 status = aha_inb(aha, STATUS_REG);
1511 intstat = aha_inb(aha, INTSTAT_REG);
1512
1513 if (aha->command_cmp != 0) {
1514 cmd_complete = 1;
1515 saved_status = aha->latched_status;
1516 } else if ((intstat & (INTR_PENDING|CMD_COMPLETE))
1517 == (INTR_PENDING|CMD_COMPLETE)) {
1518 /*
1519 * Our poll (in case interrupts are blocked)
1520 * saw the CMD_COMPLETE interrupt.
1521 */
1522 cmd_complete = 1;
1523 saved_status = status;
1524 }
1525 if ((status & DATAIN_REG_READY) != 0) {
1526 uint8_t data;
1527
1528 data = aha_inb(aha, DATAIN_REG);
1529 if (reply_len < reply_buf_size) {
1530 *reply_data++ = data;
1531 } else {
1532 device_printf(aha->dev,
1533 "aha_cmd - Discarded reply data "
1534 "byte for opcode 0x%x\n", opcode);
1535 }
1536 /*
1537 * Reset timeout to ensure at least a second
1538 * between response bytes.
1539 */
1540 cmd_timeout = MAX(cmd_timeout, 10000);
1541 reply_len++;
1542 }
1543 DELAY(100);
1544 }
1545 if (cmd_timeout == 0) {
1546 device_printf(aha->dev, "aha_cmd: Timeout: status = 0x%x, "
1547 "intstat = 0x%x, reply_len = %d\n", status, intstat,
1548 reply_len);
1549 return (ETIMEDOUT);
1550 }
1551
1552 /*
1553 * Clear any pending interrupts. Block interrupts so our
1554 * interrupt handler is not re-entered.
1555 */
1556 aha_intr(aha);
1557
1558 if (error != 0)
1559 return (error);
1560
1561 /*
1562 * If the command was rejected by the controller, tell the caller.
1563 */
1564 if ((saved_status & CMD_INVALID) != 0) {
1565 PRVERB((aha->dev, "Invalid Command 0x%x\n", opcode));
1566 /*
1567 * Some early adapters may not recover properly from
1568 * an invalid command. If it appears that the controller
1569 * has wedged (i.e. status was not cleared by our interrupt
1570 * reset above), perform a soft reset.
1571 */
1572 DELAY(1000);
1573 status = aha_inb(aha, STATUS_REG);
1574 if ((status & (CMD_INVALID|STATUS_REG_RSVD|DATAIN_REG_READY|
1575 CMD_REG_BUSY|DIAG_FAIL|DIAG_ACTIVE)) != 0
1576 || (status & (HA_READY|INIT_REQUIRED))
1577 != (HA_READY|INIT_REQUIRED))
1578 ahareset(aha, /*hard_reset*/FALSE);
1579 return (EINVAL);
1580 }
1581
1582 if (param_len > 0) {
1583 /* The controller did not accept the full argument list */
1584 PRVERB((aha->dev, "Controller did not accept full argument "
1585 "list (%d > 0)\n", param_len));
1586 return (E2BIG);
1587 }
1588
1589 if (reply_len != reply_buf_size) {
1590 /* Too much or too little data received */
1591 PRVERB((aha->dev, "data received mismatch (%d != %d)\n",
1592 reply_len, reply_buf_size));
1593 return (EMSGSIZE);
1594 }
1595
1596 /* We were successful */
1597 return (0);
1598 }
1599
1600 static int
ahainitmboxes(struct aha_softc * aha)1601 ahainitmboxes(struct aha_softc *aha)
1602 {
1603 int error;
1604 init_24b_mbox_params_t init_mbox;
1605
1606 bzero(aha->in_boxes, sizeof(aha_mbox_in_t) * aha->num_boxes);
1607 bzero(aha->out_boxes, sizeof(aha_mbox_out_t) * aha->num_boxes);
1608 aha->cur_inbox = aha->in_boxes;
1609 aha->last_inbox = aha->in_boxes + aha->num_boxes - 1;
1610 aha->cur_outbox = aha->out_boxes;
1611 aha->last_outbox = aha->out_boxes + aha->num_boxes - 1;
1612
1613 /* Tell the adapter about them */
1614 init_mbox.num_mboxes = aha->num_boxes;
1615 ahautoa24(aha->mailbox_physbase, init_mbox.base_addr);
1616 error = aha_cmd(aha, AOP_INITIALIZE_MBOX, (uint8_t *)&init_mbox,
1617 /*parmlen*/sizeof(init_mbox), /*reply_buf*/NULL,
1618 /*reply_len*/0, DEFAULT_CMD_TIMEOUT);
1619
1620 if (error != 0)
1621 printf("ahainitmboxes: Initialization command failed\n");
1622 return (error);
1623 }
1624
1625 /*
1626 * Update the XPT's idea of the negotiated transfer
1627 * parameters for a particular target.
1628 */
1629 static void
ahafetchtransinfo(struct aha_softc * aha,struct ccb_trans_settings * cts)1630 ahafetchtransinfo(struct aha_softc *aha, struct ccb_trans_settings* cts)
1631 {
1632 setup_data_t setup_info;
1633 u_int target;
1634 u_int targ_offset;
1635 u_int sync_period;
1636 int error;
1637 uint8_t param;
1638 targ_syncinfo_t sync_info;
1639 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
1640
1641 target = cts->ccb_h.target_id;
1642 targ_offset = (target & 0x7);
1643
1644 /*
1645 * Inquire Setup Information. This command retreives
1646 * the sync info for older models.
1647 */
1648 param = sizeof(setup_info);
1649 error = aha_cmd(aha, AOP_INQUIRE_SETUP_INFO, ¶m, /*paramlen*/1,
1650 (uint8_t*)&setup_info, sizeof(setup_info), DEFAULT_CMD_TIMEOUT);
1651
1652 if (error != 0) {
1653 device_printf(aha->dev,
1654 "ahafetchtransinfo - Inquire Setup Info Failed %d\n",
1655 error);
1656 return;
1657 }
1658
1659 sync_info = setup_info.syncinfo[targ_offset];
1660
1661 if (sync_info.sync == 0)
1662 spi->sync_offset = 0;
1663 else
1664 spi->sync_offset = sync_info.offset;
1665
1666 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
1667
1668 if (aha->boardid >= BOARD_1542CF)
1669 sync_period = 1000;
1670 else
1671 sync_period = 2000;
1672 sync_period += 500 * sync_info.period;
1673
1674 /* Convert ns value to standard SCSI sync rate */
1675 if (spi->sync_offset != 0)
1676 spi->sync_period = scsi_calc_syncparam(sync_period);
1677 else
1678 spi->sync_period = 0;
1679
1680 spi->valid = CTS_SPI_VALID_SYNC_RATE
1681 | CTS_SPI_VALID_SYNC_OFFSET
1682 | CTS_SPI_VALID_BUS_WIDTH;
1683 xpt_async(AC_TRANSFER_NEG, cts->ccb_h.path, cts);
1684 }
1685
1686 static void
ahamapmboxes(void * arg,bus_dma_segment_t * segs,int nseg,int error)1687 ahamapmboxes(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1688 {
1689 struct aha_softc* aha;
1690
1691 aha = (struct aha_softc*)arg;
1692 aha->mailbox_physbase = segs->ds_addr;
1693 }
1694
1695 static void
ahamapccbs(void * arg,bus_dma_segment_t * segs,int nseg,int error)1696 ahamapccbs(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1697 {
1698 struct aha_softc* aha;
1699
1700 aha = (struct aha_softc*)arg;
1701 aha->aha_ccb_physbase = segs->ds_addr;
1702 }
1703
1704 static void
ahamapsgs(void * arg,bus_dma_segment_t * segs,int nseg,int error)1705 ahamapsgs(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1706 {
1707
1708 struct aha_softc* aha;
1709
1710 aha = (struct aha_softc*)arg;
1711 SLIST_FIRST(&aha->sg_maps)->sg_physaddr = segs->ds_addr;
1712 }
1713
1714 static void
ahapoll(struct cam_sim * sim)1715 ahapoll(struct cam_sim *sim)
1716 {
1717 aha_intr_locked(cam_sim_softc(sim));
1718 }
1719
1720 static void
ahatimeout(void * arg)1721 ahatimeout(void *arg)
1722 {
1723 struct aha_ccb *accb;
1724 union ccb *ccb;
1725 struct aha_softc *aha;
1726 uint32_t paddr;
1727 struct ccb_hdr *ccb_h;
1728
1729 accb = (struct aha_ccb *)arg;
1730 ccb = accb->ccb;
1731 aha = (struct aha_softc *)ccb->ccb_h.ccb_aha_ptr;
1732 mtx_assert(&aha->lock, MA_OWNED);
1733 xpt_print_path(ccb->ccb_h.path);
1734 printf("CCB %p - timed out\n", (void *)accb);
1735
1736 if ((accb->flags & ACCB_ACTIVE) == 0) {
1737 xpt_print_path(ccb->ccb_h.path);
1738 printf("CCB %p - timed out CCB already completed\n",
1739 (void *)accb);
1740 return;
1741 }
1742
1743 /*
1744 * In order to simplify the recovery process, we ask the XPT
1745 * layer to halt the queue of new transactions and we traverse
1746 * the list of pending CCBs and remove their timeouts. This
1747 * means that the driver attempts to clear only one error
1748 * condition at a time. In general, timeouts that occur
1749 * close together are related anyway, so there is no benefit
1750 * in attempting to handle errors in parrallel. Timeouts will
1751 * be reinstated when the recovery process ends.
1752 */
1753 if ((accb->flags & ACCB_DEVICE_RESET) == 0) {
1754 if ((accb->flags & ACCB_RELEASE_SIMQ) == 0) {
1755 xpt_freeze_simq(aha->sim, /*count*/1);
1756 accb->flags |= ACCB_RELEASE_SIMQ;
1757 }
1758
1759 ccb_h = LIST_FIRST(&aha->pending_ccbs);
1760 while (ccb_h != NULL) {
1761 struct aha_ccb *pending_accb;
1762
1763 pending_accb = (struct aha_ccb *)ccb_h->ccb_accb_ptr;
1764 callout_stop(&pending_accb->timer);
1765 ccb_h = LIST_NEXT(ccb_h, sim_links.le);
1766 }
1767 }
1768
1769 if ((accb->flags & ACCB_DEVICE_RESET) != 0
1770 || aha->cur_outbox->action_code != AMBO_FREE) {
1771 /*
1772 * Try a full host adapter/SCSI bus reset.
1773 * We do this only if we have already attempted
1774 * to clear the condition with a BDR, or we cannot
1775 * attempt a BDR for lack of mailbox resources.
1776 */
1777 ccb->ccb_h.status = CAM_CMD_TIMEOUT;
1778 ahareset(aha, /*hardreset*/TRUE);
1779 device_printf(aha->dev, "No longer in timeout\n");
1780 } else {
1781 /*
1782 * Send a Bus Device Reset message:
1783 * The target that is holding up the bus may not
1784 * be the same as the one that triggered this timeout
1785 * (different commands have different timeout lengths),
1786 * but we have no way of determining this from our
1787 * timeout handler. Our strategy here is to queue a
1788 * BDR message to the target of the timed out command.
1789 * If this fails, we'll get another timeout 2 seconds
1790 * later which will attempt a bus reset.
1791 */
1792 accb->flags |= ACCB_DEVICE_RESET;
1793 callout_reset(&accb->timer, 2 * hz, ahatimeout, accb);
1794 aha->recovery_accb->hccb.opcode = INITIATOR_BUS_DEV_RESET;
1795
1796 /* No Data Transfer */
1797 aha->recovery_accb->hccb.datain = TRUE;
1798 aha->recovery_accb->hccb.dataout = TRUE;
1799 aha->recovery_accb->hccb.ahastat = 0;
1800 aha->recovery_accb->hccb.sdstat = 0;
1801 aha->recovery_accb->hccb.target = ccb->ccb_h.target_id;
1802
1803 /* Tell the adapter about this command */
1804 paddr = ahaccbvtop(aha, aha->recovery_accb);
1805 ahautoa24(paddr, aha->cur_outbox->ccb_addr);
1806 aha->cur_outbox->action_code = AMBO_START;
1807 aha_outb(aha, COMMAND_REG, AOP_START_MBOX);
1808 ahanextoutbox(aha);
1809 }
1810 }
1811
1812 int
aha_detach(struct aha_softc * aha)1813 aha_detach(struct aha_softc *aha)
1814 {
1815 mtx_lock(&aha->lock);
1816 xpt_async(AC_LOST_DEVICE, aha->path, NULL);
1817 xpt_free_path(aha->path);
1818 xpt_bus_deregister(cam_sim_path(aha->sim));
1819 cam_sim_free(aha->sim, /*free_devq*/TRUE);
1820 mtx_unlock(&aha->lock);
1821 /* XXX: Drain all timers? */
1822 return (0);
1823 }
1824 MODULE_DEPEND(aha, cam, 1, 1, 1);
1825