FreeBSD/Linux Kernel Cross Reference
sys/dev/aha/aha.c
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/bus.h>
65 #include <sys/systm.h>
66 #include <sys/malloc.h>
67 #include <sys/kernel.h>
68 #include <sys/lock.h>
69 #include <sys/module.h>
70 #include <sys/mutex.h>
71
72 #include <machine/bus.h>
73
74 #include <cam/cam.h>
75 #include <cam/cam_ccb.h>
76 #include <cam/cam_sim.h>
77 #include <cam/cam_xpt_sim.h>
78 #include <cam/cam_debug.h>
79
80 #include <cam/scsi/scsi_message.h>
81
82 #include <dev/aha/ahareg.h>
83
84 #define PRVERB(x) do { if (bootverbose) device_printf x; } while (0)
85
86 /* Macro to determine that a rev is potentially a new valid one
87 * so that the driver doesn't keep breaking on new revs as it
88 * did for the CF and CP.
89 */
90 #define PROBABLY_NEW_BOARD(REV) (REV > 0x43 && REV < 0x56)
91
92 /* MailBox Management functions */
93 static __inline void ahanextinbox(struct aha_softc *aha);
94 static __inline void ahanextoutbox(struct aha_softc *aha);
95
96 #define aha_name(aha) device_get_nameunit(aha->dev)
97
98 static __inline void
99 ahanextinbox(struct aha_softc *aha)
100 {
101 if (aha->cur_inbox == aha->last_inbox)
102 aha->cur_inbox = aha->in_boxes;
103 else
104 aha->cur_inbox++;
105 }
106
107 static __inline void
108 ahanextoutbox(struct aha_softc *aha)
109 {
110 if (aha->cur_outbox == aha->last_outbox)
111 aha->cur_outbox = aha->out_boxes;
112 else
113 aha->cur_outbox++;
114 }
115
116 #define ahautoa24(u,s3) \
117 (s3)[0] = ((u) >> 16) & 0xff; \
118 (s3)[1] = ((u) >> 8) & 0xff; \
119 (s3)[2] = (u) & 0xff;
120
121 #define aha_a24tou(s3) \
122 (((s3)[0] << 16) | ((s3)[1] << 8) | (s3)[2])
123
124 /* CCB Mangement functions */
125 static __inline uint32_t ahaccbvtop(struct aha_softc *aha,
126 struct aha_ccb *accb);
127 static __inline struct aha_ccb* ahaccbptov(struct aha_softc *aha,
128 uint32_t ccb_addr);
129
130 static __inline uint32_t
131 ahaccbvtop(struct aha_softc *aha, struct aha_ccb *accb)
132 {
133 return (aha->aha_ccb_physbase
134 + (uint32_t)((caddr_t)accb - (caddr_t)aha->aha_ccb_array));
135 }
136 static __inline struct aha_ccb *
137 ahaccbptov(struct aha_softc *aha, uint32_t ccb_addr)
138 {
139 return (aha->aha_ccb_array +
140 + ((struct aha_ccb*)(uintptr_t)ccb_addr -
141 (struct aha_ccb*)(uintptr_t)aha->aha_ccb_physbase));
142 }
143
144 static struct aha_ccb* ahagetccb(struct aha_softc *aha);
145 static __inline void ahafreeccb(struct aha_softc *aha, struct aha_ccb *accb);
146 static void ahaallocccbs(struct aha_softc *aha);
147 static bus_dmamap_callback_t ahaexecuteccb;
148 static void ahadone(struct aha_softc *aha, struct aha_ccb *accb,
149 aha_mbi_comp_code_t comp_code);
150
151 /* Host adapter command functions */
152 static int ahareset(struct aha_softc* aha, int hard_reset);
153
154 /* Initialization functions */
155 static int ahainitmboxes(struct aha_softc *aha);
156 static bus_dmamap_callback_t ahamapmboxes;
157 static bus_dmamap_callback_t ahamapccbs;
158 static bus_dmamap_callback_t ahamapsgs;
159
160 /* Transfer Negotiation Functions */
161 static void ahafetchtransinfo(struct aha_softc *aha,
162 struct ccb_trans_settings *cts);
163
164 /* CAM SIM entry points */
165 #define ccb_accb_ptr spriv_ptr0
166 #define ccb_aha_ptr spriv_ptr1
167 static void ahaaction(struct cam_sim *sim, union ccb *ccb);
168 static void ahapoll(struct cam_sim *sim);
169
170 /* Our timeout handler */
171 static timeout_t ahatimeout;
172
173 /* Exported functions */
174 void
175 aha_alloc(struct aha_softc *aha, int unit, bus_space_tag_t tag,
176 bus_space_handle_t bsh)
177 {
178
179 SLIST_INIT(&aha->free_aha_ccbs);
180 LIST_INIT(&aha->pending_ccbs);
181 SLIST_INIT(&aha->sg_maps);
182 aha->unit = unit;
183 aha->tag = tag;
184 aha->bsh = bsh;
185 aha->ccb_sg_opcode = INITIATOR_SG_CCB_WRESID;
186 aha->ccb_ccb_opcode = INITIATOR_CCB_WRESID;
187 }
188
189 void
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_dmamap_destroy(aha->ccb_dmat, aha->ccb_dmamap);
211 bus_dmamem_free(aha->ccb_dmat, aha->aha_ccb_array,
212 aha->ccb_dmamap);
213 case 5:
214 bus_dma_tag_destroy(aha->ccb_dmat);
215 case 4:
216 bus_dmamap_unload(aha->mailbox_dmat, aha->mailbox_dmamap);
217 case 3:
218 bus_dmamem_free(aha->mailbox_dmat, aha->in_boxes,
219 aha->mailbox_dmamap);
220 bus_dmamap_destroy(aha->mailbox_dmat, aha->mailbox_dmamap);
221 case 2:
222 bus_dma_tag_destroy(aha->buffer_dmat);
223 case 1:
224 bus_dma_tag_destroy(aha->mailbox_dmat);
225 case 0:
226 break;
227 }
228 }
229
230 /*
231 * Probe the adapter and verify that the card is an Adaptec.
232 */
233 int
234 aha_probe(struct aha_softc* aha)
235 {
236 u_int status;
237 u_int intstat;
238 int error;
239 board_id_data_t board_id;
240
241 /*
242 * See if the three I/O ports look reasonable.
243 * Touch the minimal number of registers in the
244 * failure case.
245 */
246 status = aha_inb(aha, STATUS_REG);
247 if ((status == 0) ||
248 (status & (DIAG_ACTIVE|CMD_REG_BUSY | STATUS_REG_RSVD)) != 0) {
249 PRVERB((aha->dev, "status reg test failed %x\n", status));
250 return (ENXIO);
251 }
252
253 intstat = aha_inb(aha, INTSTAT_REG);
254 if ((intstat & INTSTAT_REG_RSVD) != 0) {
255 PRVERB((aha->dev, "Failed Intstat Reg Test\n"));
256 return (ENXIO);
257 }
258
259 /*
260 * Looking good so far. Final test is to reset the
261 * adapter and fetch the board ID and ensure we aren't
262 * looking at a BusLogic.
263 */
264 if ((error = ahareset(aha, /*hard_reset*/TRUE)) != 0) {
265 PRVERB((aha->dev, "Failed Reset\n"));
266 return (ENXIO);
267 }
268
269 /*
270 * Get the board ID. We use this to see if we're dealing with
271 * a buslogic card or an aha card (or clone).
272 */
273 error = aha_cmd(aha, AOP_INQUIRE_BOARD_ID, NULL, /*parmlen*/0,
274 (uint8_t*)&board_id, sizeof(board_id), DEFAULT_CMD_TIMEOUT);
275 if (error != 0) {
276 PRVERB((aha->dev, "INQUIRE failed %x\n", error));
277 return (ENXIO);
278 }
279 aha->fw_major = board_id.firmware_rev_major;
280 aha->fw_minor = board_id.firmware_rev_minor;
281 aha->boardid = board_id.board_type;
282
283 /*
284 * The Buslogic cards have an id of either 0x41 or 0x42. So
285 * if those come up in the probe, we test the geometry register
286 * of the board. Adaptec boards that are this old will not have
287 * this register, and return 0xff, while buslogic cards will return
288 * something different.
289 *
290 * It appears that for reasons unknow, for the for the
291 * aha-1542B cards, we need to wait a little bit before trying
292 * to read the geometry register. I picked 10ms since we have
293 * reports that a for loop to 1000 did the trick, and this
294 * errs on the side of conservatism. Besides, no one will
295 * notice a 10mS delay here, even the 1542B card users :-)
296 *
297 * Some compatible cards return 0 here. Some cards also
298 * seem to return 0x7f.
299 *
300 * XXX I'm not sure how this will impact other cloned cards
301 *
302 * This really should be replaced with the esetup command, since
303 * that appears to be more reliable. This becomes more and more
304 * true over time as we discover more cards that don't read the
305 * geometry register consistantly.
306 */
307 if (aha->boardid <= 0x42) {
308 /* Wait 10ms before reading */
309 DELAY(10000);
310 status = aha_inb(aha, GEOMETRY_REG);
311 if (status != 0xff && status != 0x00 && status != 0x7f) {
312 PRVERB((aha->dev, "Geometry Register test failed %#x\n",
313 status));
314 return (ENXIO);
315 }
316 }
317
318 return (0);
319 }
320
321 /*
322 * Pull the boards setup information and record it in our softc.
323 */
324 int
325 aha_fetch_adapter_info(struct aha_softc *aha)
326 {
327 setup_data_t setup_info;
328 config_data_t config_data;
329 uint8_t length_param;
330 int error;
331 struct aha_extbios extbios;
332
333 switch (aha->boardid) {
334 case BOARD_1540_16HEAD_BIOS:
335 snprintf(aha->model, sizeof(aha->model), "1540 16 head BIOS");
336 break;
337 case BOARD_1540_64HEAD_BIOS:
338 snprintf(aha->model, sizeof(aha->model), "1540 64 head BIOS");
339 break;
340 case BOARD_1542:
341 snprintf(aha->model, sizeof(aha->model), "1540/1542 64 head BIOS");
342 break;
343 case BOARD_1640:
344 snprintf(aha->model, sizeof(aha->model), "1640");
345 break;
346 case BOARD_1740:
347 snprintf(aha->model, sizeof(aha->model), "1740A/1742A/1744");
348 break;
349 case BOARD_1542C:
350 snprintf(aha->model, sizeof(aha->model), "1542C");
351 break;
352 case BOARD_1542CF:
353 snprintf(aha->model, sizeof(aha->model), "1542CF");
354 break;
355 case BOARD_1542CP:
356 snprintf(aha->model, sizeof(aha->model), "1542CP");
357 break;
358 default:
359 snprintf(aha->model, sizeof(aha->model), "Unknown");
360 break;
361 }
362 /*
363 * If we are a new type of 1542 board (anything newer than a 1542C)
364 * then disable the extended bios so that the
365 * mailbox interface is unlocked.
366 * This is also true for the 1542B Version 3.20. First Adaptec
367 * board that supports >1Gb drives.
368 * No need to check the extended bios flags as some of the
369 * extensions that cause us problems are not flagged in that byte.
370 */
371 if (PROBABLY_NEW_BOARD(aha->boardid) ||
372 (aha->boardid == 0x41
373 && aha->fw_major == 0x31 &&
374 aha->fw_minor >= 0x34)) {
375 error = aha_cmd(aha, AOP_RETURN_EXT_BIOS_INFO, NULL,
376 /*paramlen*/0, (u_char *)&extbios, sizeof(extbios),
377 DEFAULT_CMD_TIMEOUT);
378 if (error != 0) {
379 device_printf(aha->dev,
380 "AOP_RETURN_EXT_BIOS_INFO - Failed.");
381 return (error);
382 }
383 error = aha_cmd(aha, AOP_MBOX_IF_ENABLE, (uint8_t *)&extbios,
384 /*paramlen*/2, NULL, 0, DEFAULT_CMD_TIMEOUT);
385 if (error != 0) {
386 device_printf(aha->dev, "AOP_MBOX_IF_ENABLE - Failed.");
387 return (error);
388 }
389 }
390 if (aha->boardid < 0x41)
391 device_printf(aha->dev, "Warning: aha-1542A won't work.\n");
392
393 aha->max_sg = 17; /* Need >= 17 to do 64k I/O */
394 aha->diff_bus = 0;
395 aha->extended_lun = 0;
396 aha->extended_trans = 0;
397 aha->max_ccbs = 16;
398 /* Determine Sync/Wide/Disc settings */
399 length_param = sizeof(setup_info);
400 error = aha_cmd(aha, AOP_INQUIRE_SETUP_INFO, &length_param,
401 /*paramlen*/1, (uint8_t*)&setup_info, sizeof(setup_info),
402 DEFAULT_CMD_TIMEOUT);
403 if (error != 0) {
404 device_printf(aha->dev, "aha_fetch_adapter_info - Failed "
405 "Get Setup Info\n");
406 return (error);
407 }
408 if (setup_info.initiate_sync != 0) {
409 aha->sync_permitted = ALL_TARGETS;
410 }
411 aha->disc_permitted = ALL_TARGETS;
412
413 /* We need as many mailboxes as we can have ccbs */
414 aha->num_boxes = aha->max_ccbs;
415
416 /* Determine our SCSI ID */
417 error = aha_cmd(aha, AOP_INQUIRE_CONFIG, NULL, /*parmlen*/0,
418 (uint8_t*)&config_data, sizeof(config_data), DEFAULT_CMD_TIMEOUT);
419 if (error != 0) {
420 device_printf(aha->dev,
421 "aha_fetch_adapter_info - Failed Get Config\n");
422 return (error);
423 }
424 aha->scsi_id = config_data.scsi_id;
425 return (0);
426 }
427
428 /*
429 * Start the board, ready for normal operation
430 */
431 int
432 aha_init(struct aha_softc* aha)
433 {
434 /* Announce the Adapter */
435 device_printf(aha->dev, "AHA-%s FW Rev. %c.%c (ID=%x) ",
436 aha->model, aha->fw_major, aha->fw_minor, aha->boardid);
437
438 if (aha->diff_bus != 0)
439 printf("Diff ");
440
441 printf("SCSI Host Adapter, SCSI ID %d, %d CCBs\n", aha->scsi_id,
442 aha->max_ccbs);
443
444 /*
445 * Create our DMA tags. These tags define the kinds of device
446 * accessible memory allocations and memory mappings we will
447 * need to perform during normal operation.
448 *
449 * Unless we need to further restrict the allocation, we rely
450 * on the restrictions of the parent dmat, hence the common
451 * use of MAXADDR and MAXSIZE.
452 */
453
454 /* DMA tag for mapping buffers into device visible space. */
455 if (bus_dma_tag_create( /* parent */ aha->parent_dmat,
456 /* alignment */ 1,
457 /* boundary */ 0,
458 /* lowaddr */ BUS_SPACE_MAXADDR,
459 /* highaddr */ BUS_SPACE_MAXADDR,
460 /* filter */ NULL,
461 /* filterarg */ NULL,
462 /* maxsize */ MAXBSIZE,
463 /* nsegments */ AHA_NSEG,
464 /* maxsegsz */ BUS_SPACE_MAXSIZE_24BIT,
465 /* flags */ BUS_DMA_ALLOCNOW,
466 /* lockfunc */ busdma_lock_mutex,
467 /* lockarg */ &Giant,
468 &aha->buffer_dmat) != 0) {
469 goto error_exit;
470 }
471
472 aha->init_level++;
473 /* DMA tag for our mailboxes */
474 if (bus_dma_tag_create( /* parent */ aha->parent_dmat,
475 /* alignment */ 1,
476 /* boundary */ 0,
477 /* lowaddr */ BUS_SPACE_MAXADDR,
478 /* highaddr */ BUS_SPACE_MAXADDR,
479 /* filter */ NULL,
480 /* filterarg */ NULL,
481 /* maxsize */ aha->num_boxes *
482 (sizeof(aha_mbox_in_t) +
483 sizeof(aha_mbox_out_t)),
484 /* nsegments */ 1,
485 /* maxsegsz */ BUS_SPACE_MAXSIZE_24BIT,
486 /* flags */ 0,
487 /* lockfunc */ busdma_lock_mutex,
488 /* lockarg */ &Giant,
489 &aha->mailbox_dmat) != 0) {
490 goto error_exit;
491 }
492
493 aha->init_level++;
494
495 /* Allocation for our mailboxes */
496 if (bus_dmamem_alloc(aha->mailbox_dmat, (void **)&aha->out_boxes,
497 BUS_DMA_NOWAIT, &aha->mailbox_dmamap) != 0)
498 goto error_exit;
499
500 aha->init_level++;
501
502 /* And permanently map them */
503 bus_dmamap_load(aha->mailbox_dmat, aha->mailbox_dmamap,
504 aha->out_boxes, aha->num_boxes * (sizeof(aha_mbox_in_t) +
505 sizeof(aha_mbox_out_t)), ahamapmboxes, aha, /*flags*/0);
506
507 aha->init_level++;
508
509 aha->in_boxes = (aha_mbox_in_t *)&aha->out_boxes[aha->num_boxes];
510
511 ahainitmboxes(aha);
512
513 /* DMA tag for our ccb structures */
514 if (bus_dma_tag_create( /* parent */ aha->parent_dmat,
515 /* alignment */ 1,
516 /* boundary */ 0,
517 /* lowaddr */ BUS_SPACE_MAXADDR,
518 /* highaddr */ BUS_SPACE_MAXADDR,
519 /* filter */ NULL,
520 /* filterarg */ NULL,
521 /* maxsize */ aha->max_ccbs *
522 sizeof(struct aha_ccb),
523 /* nsegments */ 1,
524 /* maxsegsz */ BUS_SPACE_MAXSIZE_24BIT,
525 /* flags */ 0,
526 /* lockfunc */ busdma_lock_mutex,
527 /* lockarg */ &Giant,
528 &aha->ccb_dmat) != 0) {
529 goto error_exit;
530 }
531
532 aha->init_level++;
533
534 /* Allocation for our ccbs */
535 if (bus_dmamem_alloc(aha->ccb_dmat, (void **)&aha->aha_ccb_array,
536 BUS_DMA_NOWAIT, &aha->ccb_dmamap) != 0)
537 goto error_exit;
538
539 aha->init_level++;
540
541 /* And permanently map them */
542 bus_dmamap_load(aha->ccb_dmat, aha->ccb_dmamap, aha->aha_ccb_array,
543 aha->max_ccbs * sizeof(struct aha_ccb), ahamapccbs, aha, /*flags*/0);
544
545 aha->init_level++;
546
547 /* DMA tag for our S/G structures. We allocate in page sized chunks */
548 if (bus_dma_tag_create( /* parent */ aha->parent_dmat,
549 /* alignment */ 1,
550 /* boundary */ 0,
551 /* lowaddr */ BUS_SPACE_MAXADDR,
552 /* highaddr */ BUS_SPACE_MAXADDR,
553 /* filter */ NULL,
554 /* filterarg */ NULL,
555 /* maxsize */ PAGE_SIZE,
556 /* nsegments */ 1,
557 /* maxsegsz */ BUS_SPACE_MAXSIZE_24BIT,
558 /* flags */ 0,
559 /* lockfunc */ busdma_lock_mutex,
560 /* lockarg */ &Giant,
561 &aha->sg_dmat) != 0)
562 goto error_exit;
563
564 aha->init_level++;
565
566 /* Perform initial CCB allocation */
567 bzero(aha->aha_ccb_array, aha->max_ccbs * sizeof(struct aha_ccb));
568 ahaallocccbs(aha);
569
570 if (aha->num_ccbs == 0) {
571 device_printf(aha->dev,
572 "aha_init - Unable to allocate initial ccbs\n");
573 goto error_exit;
574 }
575
576 /*
577 * Note that we are going and return (to probe)
578 */
579 return (0);
580
581 error_exit:
582
583 return (ENXIO);
584 }
585
586 int
587 aha_attach(struct aha_softc *aha)
588 {
589 int tagged_dev_openings;
590 struct cam_devq *devq;
591
592 /*
593 * We don't do tagged queueing, since the aha cards don't
594 * support it.
595 */
596 tagged_dev_openings = 0;
597
598 /*
599 * Create the device queue for our SIM.
600 */
601 devq = cam_simq_alloc(aha->max_ccbs - 1);
602 if (devq == NULL)
603 return (ENOMEM);
604
605 /*
606 * Construct our SIM entry
607 */
608 aha->sim = cam_sim_alloc(ahaaction, ahapoll, "aha", aha, aha->unit, 2,
609 tagged_dev_openings, devq);
610 if (aha->sim == NULL) {
611 cam_simq_free(devq);
612 return (ENOMEM);
613 }
614 if (xpt_bus_register(aha->sim, 0) != CAM_SUCCESS) {
615 cam_sim_free(aha->sim, /*free_devq*/TRUE);
616 return (ENXIO);
617 }
618 if (xpt_create_path(&aha->path, /*periph*/NULL, cam_sim_path(aha->sim),
619 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
620 xpt_bus_deregister(cam_sim_path(aha->sim));
621 cam_sim_free(aha->sim, /*free_devq*/TRUE);
622 return (ENXIO);
623 }
624
625 return (0);
626 }
627
628 static void
629 ahaallocccbs(struct aha_softc *aha)
630 {
631 struct aha_ccb *next_ccb;
632 struct sg_map_node *sg_map;
633 bus_addr_t physaddr;
634 aha_sg_t *segs;
635 int newcount;
636 int i;
637
638 next_ccb = &aha->aha_ccb_array[aha->num_ccbs];
639
640 sg_map = malloc(sizeof(*sg_map), M_DEVBUF, M_NOWAIT);
641
642 if (sg_map == NULL)
643 return;
644
645 /* Allocate S/G space for the next batch of CCBS */
646 if (bus_dmamem_alloc(aha->sg_dmat, (void **)&sg_map->sg_vaddr,
647 BUS_DMA_NOWAIT, &sg_map->sg_dmamap) != 0) {
648 free(sg_map, M_DEVBUF);
649 return;
650 }
651
652 SLIST_INSERT_HEAD(&aha->sg_maps, sg_map, links);
653
654 bus_dmamap_load(aha->sg_dmat, sg_map->sg_dmamap, sg_map->sg_vaddr,
655 PAGE_SIZE, ahamapsgs, aha, /*flags*/0);
656
657 segs = sg_map->sg_vaddr;
658 physaddr = sg_map->sg_physaddr;
659
660 newcount = (PAGE_SIZE / (AHA_NSEG * sizeof(aha_sg_t)));
661 for (i = 0; aha->num_ccbs < aha->max_ccbs && i < newcount; i++) {
662 int error;
663
664 next_ccb->sg_list = segs;
665 next_ccb->sg_list_phys = physaddr;
666 next_ccb->flags = ACCB_FREE;
667 error = bus_dmamap_create(aha->buffer_dmat, /*flags*/0,
668 &next_ccb->dmamap);
669 if (error != 0)
670 break;
671 SLIST_INSERT_HEAD(&aha->free_aha_ccbs, next_ccb, links);
672 segs += AHA_NSEG;
673 physaddr += (AHA_NSEG * sizeof(aha_sg_t));
674 next_ccb++;
675 aha->num_ccbs++;
676 }
677
678 /* Reserve a CCB for error recovery */
679 if (aha->recovery_accb == NULL) {
680 aha->recovery_accb = SLIST_FIRST(&aha->free_aha_ccbs);
681 SLIST_REMOVE_HEAD(&aha->free_aha_ccbs, links);
682 }
683 }
684
685 static __inline void
686 ahafreeccb(struct aha_softc *aha, struct aha_ccb *accb)
687 {
688 int s;
689
690 s = splcam();
691 if ((accb->flags & ACCB_ACTIVE) != 0)
692 LIST_REMOVE(&accb->ccb->ccb_h, sim_links.le);
693 if (aha->resource_shortage != 0
694 && (accb->ccb->ccb_h.status & CAM_RELEASE_SIMQ) == 0) {
695 accb->ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
696 aha->resource_shortage = FALSE;
697 }
698 accb->flags = ACCB_FREE;
699 SLIST_INSERT_HEAD(&aha->free_aha_ccbs, accb, links);
700 aha->active_ccbs--;
701 splx(s);
702 }
703
704 static struct aha_ccb*
705 ahagetccb(struct aha_softc *aha)
706 {
707 struct aha_ccb* accb;
708 int s;
709
710 s = splcam();
711 if ((accb = SLIST_FIRST(&aha->free_aha_ccbs)) != NULL) {
712 SLIST_REMOVE_HEAD(&aha->free_aha_ccbs, links);
713 aha->active_ccbs++;
714 } else if (aha->num_ccbs < aha->max_ccbs) {
715 ahaallocccbs(aha);
716 accb = SLIST_FIRST(&aha->free_aha_ccbs);
717 if (accb == NULL)
718 device_printf(aha->dev, "Can't malloc ACCB\n");
719 else {
720 SLIST_REMOVE_HEAD(&aha->free_aha_ccbs, links);
721 aha->active_ccbs++;
722 }
723 }
724 splx(s);
725
726 return (accb);
727 }
728
729 static void
730 ahaaction(struct cam_sim *sim, union ccb *ccb)
731 {
732 struct aha_softc *aha;
733 int s;
734
735 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahaaction\n"));
736
737 aha = (struct aha_softc *)cam_sim_softc(sim);
738
739 switch (ccb->ccb_h.func_code) {
740 /* Common cases first */
741 case XPT_SCSI_IO: /* Execute the requested I/O operation */
742 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ {
743 struct aha_ccb *accb;
744 struct aha_hccb *hccb;
745
746 /*
747 * Get an accb to use.
748 */
749 if ((accb = ahagetccb(aha)) == NULL) {
750 s = splcam();
751 aha->resource_shortage = TRUE;
752 splx(s);
753 xpt_freeze_simq(aha->sim, /*count*/1);
754 ccb->ccb_h.status = CAM_REQUEUE_REQ;
755 xpt_done(ccb);
756 return;
757 }
758 hccb = &accb->hccb;
759
760 /*
761 * So we can find the ACCB when an abort is requested
762 */
763 accb->ccb = ccb;
764 ccb->ccb_h.ccb_accb_ptr = accb;
765 ccb->ccb_h.ccb_aha_ptr = aha;
766
767 /*
768 * Put all the arguments for the xfer in the accb
769 */
770 hccb->target = ccb->ccb_h.target_id;
771 hccb->lun = ccb->ccb_h.target_lun;
772 hccb->ahastat = 0;
773 hccb->sdstat = 0;
774
775 if (ccb->ccb_h.func_code == XPT_SCSI_IO) {
776 struct ccb_scsiio *csio;
777 struct ccb_hdr *ccbh;
778
779 csio = &ccb->csio;
780 ccbh = &csio->ccb_h;
781 hccb->opcode = aha->ccb_ccb_opcode;
782 hccb->datain = (ccb->ccb_h.flags & CAM_DIR_IN) != 0;
783 hccb->dataout = (ccb->ccb_h.flags & CAM_DIR_OUT) != 0;
784 hccb->cmd_len = csio->cdb_len;
785 if (hccb->cmd_len > sizeof(hccb->scsi_cdb)) {
786 ccb->ccb_h.status = CAM_REQ_INVALID;
787 ahafreeccb(aha, accb);
788 xpt_done(ccb);
789 return;
790 }
791 hccb->sense_len = csio->sense_len;
792 if ((ccbh->flags & CAM_CDB_POINTER) != 0) {
793 if ((ccbh->flags & CAM_CDB_PHYS) == 0) {
794 bcopy(csio->cdb_io.cdb_ptr,
795 hccb->scsi_cdb, hccb->cmd_len);
796 } else {
797 /* I guess I could map it in... */
798 ccbh->status = CAM_REQ_INVALID;
799 ahafreeccb(aha, accb);
800 xpt_done(ccb);
801 return;
802 }
803 } else {
804 bcopy(csio->cdb_io.cdb_bytes,
805 hccb->scsi_cdb, hccb->cmd_len);
806 }
807 /*
808 * If we have any data to send with this command,
809 * map it into bus space.
810 */
811 /* Only use S/G if there is a transfer */
812 if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
813 if ((ccbh->flags & CAM_SCATTER_VALID) == 0) {
814 /*
815 * We've been given a pointer
816 * to a single buffer.
817 */
818 if ((ccbh->flags & CAM_DATA_PHYS)==0) {
819 int error;
820
821 s = splsoftvm();
822 error = bus_dmamap_load(
823 aha->buffer_dmat,
824 accb->dmamap,
825 csio->data_ptr,
826 csio->dxfer_len,
827 ahaexecuteccb,
828 accb,
829 /*flags*/0);
830 if (error == EINPROGRESS) {
831 /*
832 * So as to maintain
833 * ordering, freeze the
834 * controller queue
835 * until our mapping is
836 * returned.
837 */
838 xpt_freeze_simq(aha->sim,
839 1);
840 csio->ccb_h.status |=
841 CAM_RELEASE_SIMQ;
842 }
843 splx(s);
844 } else {
845 struct bus_dma_segment seg;
846
847 /* Pointer to physical buffer */
848 seg.ds_addr =
849 (bus_addr_t)csio->data_ptr;
850 seg.ds_len = csio->dxfer_len;
851 ahaexecuteccb(accb, &seg, 1, 0);
852 }
853 } else {
854 struct bus_dma_segment *segs;
855
856 if ((ccbh->flags & CAM_DATA_PHYS) != 0)
857 panic("ahaaction - Physical "
858 "segment pointers "
859 "unsupported");
860
861 if ((ccbh->flags&CAM_SG_LIST_PHYS)==0)
862 panic("ahaaction - Virtual "
863 "segment addresses "
864 "unsupported");
865
866 /* Just use the segments provided */
867 segs = (struct bus_dma_segment *)
868 csio->data_ptr;
869 ahaexecuteccb(accb, segs,
870 csio->sglist_cnt, 0);
871 }
872 } else {
873 ahaexecuteccb(accb, NULL, 0, 0);
874 }
875 } else {
876 hccb->opcode = INITIATOR_BUS_DEV_RESET;
877 /* No data transfer */
878 hccb->datain = TRUE;
879 hccb->dataout = TRUE;
880 hccb->cmd_len = 0;
881 hccb->sense_len = 0;
882 ahaexecuteccb(accb, NULL, 0, 0);
883 }
884 break;
885 }
886 case XPT_EN_LUN: /* Enable LUN as a target */
887 case XPT_TARGET_IO: /* Execute target I/O request */
888 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */
889 case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/
890 case XPT_ABORT: /* Abort the specified CCB */
891 /* XXX Implement */
892 ccb->ccb_h.status = CAM_REQ_INVALID;
893 xpt_done(ccb);
894 break;
895 case XPT_SET_TRAN_SETTINGS:
896 /* XXX Implement */
897 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
898 xpt_done(ccb);
899 break;
900 case XPT_GET_TRAN_SETTINGS:
901 /* Get default/user set transfer settings for the target */
902 {
903 struct ccb_trans_settings *cts;
904 u_int target_mask;
905
906 cts = &ccb->cts;
907 target_mask = 0x01 << ccb->ccb_h.target_id;
908 if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) {
909 cts->flags = 0;
910 if ((aha->disc_permitted & target_mask) != 0)
911 cts->flags |= CCB_TRANS_DISC_ENB;
912 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
913 if ((aha->sync_permitted & target_mask) != 0) {
914 if (aha->boardid >= BOARD_1542CF)
915 cts->sync_period = 25;
916 else
917 cts->sync_period = 50;
918 } else
919 cts->sync_period = 0;
920
921 if (cts->sync_period != 0)
922 cts->sync_offset = 15;
923
924 cts->valid = CCB_TRANS_SYNC_RATE_VALID
925 | CCB_TRANS_SYNC_OFFSET_VALID
926 | CCB_TRANS_BUS_WIDTH_VALID
927 | CCB_TRANS_DISC_VALID
928 | CCB_TRANS_TQ_VALID;
929 } else {
930 ahafetchtransinfo(aha, cts);
931 }
932
933 ccb->ccb_h.status = CAM_REQ_CMP;
934 xpt_done(ccb);
935 break;
936 }
937 case XPT_CALC_GEOMETRY:
938 {
939 struct ccb_calc_geometry *ccg;
940 uint32_t size_mb;
941 uint32_t secs_per_cylinder;
942
943 ccg = &ccb->ccg;
944 size_mb = ccg->volume_size
945 / ((1024L * 1024L) / ccg->block_size);
946 if (size_mb >= 1024 && (aha->extended_trans != 0)) {
947 if (size_mb >= 2048) {
948 ccg->heads = 255;
949 ccg->secs_per_track = 63;
950 } else {
951 ccg->heads = 128;
952 ccg->secs_per_track = 32;
953 }
954 } else {
955 ccg->heads = 64;
956 ccg->secs_per_track = 32;
957 }
958 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
959 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
960 ccb->ccb_h.status = CAM_REQ_CMP;
961 xpt_done(ccb);
962 break;
963 }
964 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
965 ahareset(aha, /*hardreset*/TRUE);
966 ccb->ccb_h.status = CAM_REQ_CMP;
967 xpt_done(ccb);
968 break;
969 case XPT_TERM_IO: /* Terminate the I/O process */
970 /* XXX Implement */
971 ccb->ccb_h.status = CAM_REQ_INVALID;
972 xpt_done(ccb);
973 break;
974 case XPT_PATH_INQ: /* Path routing inquiry */
975 {
976 struct ccb_pathinq *cpi = &ccb->cpi;
977
978 cpi->version_num = 1; /* XXX??? */
979 cpi->hba_inquiry = PI_SDTR_ABLE;
980 cpi->target_sprt = 0;
981 cpi->hba_misc = 0;
982 cpi->hba_eng_cnt = 0;
983 cpi->max_target = 7;
984 cpi->max_lun = 7;
985 cpi->initiator_id = aha->scsi_id;
986 cpi->bus_id = cam_sim_bus(sim);
987 cpi->base_transfer_speed = 3300;
988 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
989 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN);
990 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
991 cpi->unit_number = cam_sim_unit(sim);
992 cpi->ccb_h.status = CAM_REQ_CMP;
993 xpt_done(ccb);
994 break;
995 }
996 default:
997 ccb->ccb_h.status = CAM_REQ_INVALID;
998 xpt_done(ccb);
999 break;
1000 }
1001 }
1002
1003 static void
1004 ahaexecuteccb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1005 {
1006 struct aha_ccb *accb;
1007 union ccb *ccb;
1008 struct aha_softc *aha;
1009 int s;
1010 uint32_t paddr;
1011
1012 accb = (struct aha_ccb *)arg;
1013 ccb = accb->ccb;
1014 aha = (struct aha_softc *)ccb->ccb_h.ccb_aha_ptr;
1015
1016 if (error != 0) {
1017 if (error != EFBIG)
1018 device_printf(aha->dev,
1019 "Unexepected error 0x%x returned from "
1020 "bus_dmamap_load\n", error);
1021 if (ccb->ccb_h.status == CAM_REQ_INPROG) {
1022 xpt_freeze_devq(ccb->ccb_h.path, /*count*/1);
1023 ccb->ccb_h.status = CAM_REQ_TOO_BIG|CAM_DEV_QFRZN;
1024 }
1025 ahafreeccb(aha, accb);
1026 xpt_done(ccb);
1027 return;
1028 }
1029
1030 if (nseg != 0) {
1031 aha_sg_t *sg;
1032 bus_dma_segment_t *end_seg;
1033 bus_dmasync_op_t op;
1034
1035 end_seg = dm_segs + nseg;
1036
1037 /* Copy the segments into our SG list */
1038 sg = accb->sg_list;
1039 while (dm_segs < end_seg) {
1040 ahautoa24(dm_segs->ds_len, sg->len);
1041 ahautoa24(dm_segs->ds_addr, sg->addr);
1042 sg++;
1043 dm_segs++;
1044 }
1045
1046 if (nseg > 1) {
1047 accb->hccb.opcode = aha->ccb_sg_opcode;
1048 ahautoa24((sizeof(aha_sg_t) * nseg),
1049 accb->hccb.data_len);
1050 ahautoa24(accb->sg_list_phys, accb->hccb.data_addr);
1051 } else {
1052 bcopy(accb->sg_list->len, accb->hccb.data_len, 3);
1053 bcopy(accb->sg_list->addr, accb->hccb.data_addr, 3);
1054 }
1055
1056 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
1057 op = BUS_DMASYNC_PREREAD;
1058 else
1059 op = BUS_DMASYNC_PREWRITE;
1060
1061 bus_dmamap_sync(aha->buffer_dmat, accb->dmamap, op);
1062
1063 } else {
1064 accb->hccb.opcode = INITIATOR_CCB;
1065 ahautoa24(0, accb->hccb.data_len);
1066 ahautoa24(0, accb->hccb.data_addr);
1067 }
1068
1069 s = splcam();
1070
1071 /*
1072 * Last time we need to check if this CCB needs to
1073 * be aborted.
1074 */
1075 if (ccb->ccb_h.status != CAM_REQ_INPROG) {
1076 if (nseg != 0)
1077 bus_dmamap_unload(aha->buffer_dmat, accb->dmamap);
1078 ahafreeccb(aha, accb);
1079 xpt_done(ccb);
1080 splx(s);
1081 return;
1082 }
1083
1084 accb->flags = ACCB_ACTIVE;
1085 ccb->ccb_h.status |= CAM_SIM_QUEUED;
1086 LIST_INSERT_HEAD(&aha->pending_ccbs, &ccb->ccb_h, sim_links.le);
1087
1088 ccb->ccb_h.timeout_ch = timeout(ahatimeout, (caddr_t)accb,
1089 (ccb->ccb_h.timeout * hz) / 1000);
1090
1091 /* Tell the adapter about this command */
1092 if (aha->cur_outbox->action_code != AMBO_FREE) {
1093 /*
1094 * We should never encounter a busy mailbox.
1095 * If we do, warn the user, and treat it as
1096 * a resource shortage. If the controller is
1097 * hung, one of the pending transactions will
1098 * timeout causing us to start recovery operations.
1099 */
1100 device_printf(aha->dev,
1101 "Encountered busy mailbox with %d out of %d "
1102 "commands active!!!", aha->active_ccbs, aha->max_ccbs);
1103 untimeout(ahatimeout, accb, ccb->ccb_h.timeout_ch);
1104 if (nseg != 0)
1105 bus_dmamap_unload(aha->buffer_dmat, accb->dmamap);
1106 ahafreeccb(aha, accb);
1107 aha->resource_shortage = TRUE;
1108 xpt_freeze_simq(aha->sim, /*count*/1);
1109 ccb->ccb_h.status = CAM_REQUEUE_REQ;
1110 xpt_done(ccb);
1111 return;
1112 }
1113 paddr = ahaccbvtop(aha, accb);
1114 ahautoa24(paddr, aha->cur_outbox->ccb_addr);
1115 aha->cur_outbox->action_code = AMBO_START;
1116 aha_outb(aha, COMMAND_REG, AOP_START_MBOX);
1117
1118 ahanextoutbox(aha);
1119 splx(s);
1120 }
1121
1122 void
1123 aha_intr(void *arg)
1124 {
1125 struct aha_softc *aha;
1126 u_int intstat;
1127 uint32_t paddr;
1128
1129 aha = (struct aha_softc *)arg;
1130 while (((intstat = aha_inb(aha, INTSTAT_REG)) & INTR_PENDING) != 0) {
1131 if ((intstat & CMD_COMPLETE) != 0) {
1132 aha->latched_status = aha_inb(aha, STATUS_REG);
1133 aha->command_cmp = TRUE;
1134 }
1135
1136 aha_outb(aha, CONTROL_REG, RESET_INTR);
1137
1138 if ((intstat & IMB_LOADED) != 0) {
1139 while (aha->cur_inbox->comp_code != AMBI_FREE) {
1140 paddr = aha_a24tou(aha->cur_inbox->ccb_addr);
1141 ahadone(aha, ahaccbptov(aha, paddr),
1142 aha->cur_inbox->comp_code);
1143 aha->cur_inbox->comp_code = AMBI_FREE;
1144 ahanextinbox(aha);
1145 }
1146 }
1147
1148 if ((intstat & SCSI_BUS_RESET) != 0) {
1149 ahareset(aha, /*hardreset*/FALSE);
1150 }
1151 }
1152 }
1153
1154 static void
1155 ahadone(struct aha_softc *aha, struct aha_ccb *accb, aha_mbi_comp_code_t comp_code)
1156 {
1157 union ccb *ccb;
1158 struct ccb_scsiio *csio;
1159
1160 ccb = accb->ccb;
1161 csio = &accb->ccb->csio;
1162
1163 if ((accb->flags & ACCB_ACTIVE) == 0) {
1164 device_printf(aha->dev,
1165 "ahadone - Attempt to free non-active ACCB %p\n",
1166 (void *)accb);
1167 return;
1168 }
1169
1170 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
1171 bus_dmasync_op_t op;
1172
1173 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
1174 op = BUS_DMASYNC_POSTREAD;
1175 else
1176 op = BUS_DMASYNC_POSTWRITE;
1177 bus_dmamap_sync(aha->buffer_dmat, accb->dmamap, op);
1178 bus_dmamap_unload(aha->buffer_dmat, accb->dmamap);
1179 }
1180
1181 if (accb == aha->recovery_accb) {
1182 /*
1183 * The recovery ACCB does not have a CCB associated
1184 * with it, so short circuit the normal error handling.
1185 * We now traverse our list of pending CCBs and process
1186 * any that were terminated by the recovery CCBs action.
1187 * We also reinstate timeouts for all remaining, pending,
1188 * CCBs.
1189 */
1190 struct cam_path *path;
1191 struct ccb_hdr *ccb_h;
1192 cam_status error;
1193
1194 /* Notify all clients that a BDR occured */
1195 error = xpt_create_path(&path, /*periph*/NULL,
1196 cam_sim_path(aha->sim), accb->hccb.target,
1197 CAM_LUN_WILDCARD);
1198
1199 if (error == CAM_REQ_CMP)
1200 xpt_async(AC_SENT_BDR, path, NULL);
1201
1202 ccb_h = LIST_FIRST(&aha->pending_ccbs);
1203 while (ccb_h != NULL) {
1204 struct aha_ccb *pending_accb;
1205
1206 pending_accb = (struct aha_ccb *)ccb_h->ccb_accb_ptr;
1207 if (pending_accb->hccb.target == accb->hccb.target) {
1208 pending_accb->hccb.ahastat = AHASTAT_HA_BDR;
1209 ccb_h = LIST_NEXT(ccb_h, sim_links.le);
1210 ahadone(aha, pending_accb, AMBI_ERROR);
1211 } else {
1212 ccb_h->timeout_ch = timeout(ahatimeout,
1213 (caddr_t)pending_accb,
1214 (ccb_h->timeout * hz) / 1000);
1215 ccb_h = LIST_NEXT(ccb_h, sim_links.le);
1216 }
1217 }
1218 device_printf(aha->dev, "No longer in timeout\n");
1219 return;
1220 }
1221
1222 untimeout(ahatimeout, accb, ccb->ccb_h.timeout_ch);
1223
1224 switch (comp_code) {
1225 case AMBI_FREE:
1226 device_printf(aha->dev,
1227 "ahadone - CCB completed with free status!\n");
1228 break;
1229 case AMBI_NOT_FOUND:
1230 device_printf(aha->dev,
1231 "ahadone - CCB Abort failed to find CCB\n");
1232 break;
1233 case AMBI_ABORT:
1234 case AMBI_ERROR:
1235 /* An error occured */
1236 if (accb->hccb.opcode < INITIATOR_CCB_WRESID)
1237 csio->resid = 0;
1238 else
1239 csio->resid = aha_a24tou(accb->hccb.data_len);
1240 switch(accb->hccb.ahastat) {
1241 case AHASTAT_DATARUN_ERROR:
1242 {
1243 if (csio->resid <= 0) {
1244 csio->ccb_h.status = CAM_DATA_RUN_ERR;
1245 break;
1246 }
1247 /* FALLTHROUGH */
1248 }
1249 case AHASTAT_NOERROR:
1250 csio->scsi_status = accb->hccb.sdstat;
1251 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
1252 switch(csio->scsi_status) {
1253 case SCSI_STATUS_CHECK_COND:
1254 case SCSI_STATUS_CMD_TERMINATED:
1255 csio->ccb_h.status |= CAM_AUTOSNS_VALID;
1256 /*
1257 * The aha writes the sense data at different
1258 * offsets based on the scsi cmd len
1259 */
1260 bcopy((caddr_t) &accb->hccb.scsi_cdb +
1261 accb->hccb.cmd_len,
1262 (caddr_t) &csio->sense_data,
1263 accb->hccb.sense_len);
1264 break;
1265 default:
1266 break;
1267 case SCSI_STATUS_OK:
1268 csio->ccb_h.status = CAM_REQ_CMP;
1269 break;
1270 }
1271 break;
1272 case AHASTAT_SELTIMEOUT:
1273 csio->ccb_h.status = CAM_SEL_TIMEOUT;
1274 break;
1275 case AHASTAT_UNEXPECTED_BUSFREE:
1276 csio->ccb_h.status = CAM_UNEXP_BUSFREE;
1277 break;
1278 case AHASTAT_INVALID_PHASE:
1279 csio->ccb_h.status = CAM_SEQUENCE_FAIL;
1280 break;
1281 case AHASTAT_INVALID_ACTION_CODE:
1282 panic("%s: Inavlid Action code", aha_name(aha));
1283 break;
1284 case AHASTAT_INVALID_OPCODE:
1285 if (accb->hccb.opcode < INITIATOR_CCB_WRESID)
1286 panic("%s: Invalid CCB Opcode %x hccb = %p",
1287 aha_name(aha), accb->hccb.opcode,
1288 &accb->hccb);
1289 device_printf(aha->dev,
1290 "AHA-1540A compensation failed\n");
1291 xpt_freeze_devq(ccb->ccb_h.path, /*count*/1);
1292 csio->ccb_h.status = CAM_REQUEUE_REQ;
1293 break;
1294 case AHASTAT_LINKED_CCB_LUN_MISMATCH:
1295 /* We don't even support linked commands... */
1296 panic("%s: Linked CCB Lun Mismatch", aha_name(aha));
1297 break;
1298 case AHASTAT_INVALID_CCB_OR_SG_PARAM:
1299 panic("%s: Invalid CCB or SG list", aha_name(aha));
1300 break;
1301 case AHASTAT_HA_SCSI_BUS_RESET:
1302 if ((csio->ccb_h.status & CAM_STATUS_MASK)
1303 != CAM_CMD_TIMEOUT)
1304 csio->ccb_h.status = CAM_SCSI_BUS_RESET;
1305 break;
1306 case AHASTAT_HA_BDR:
1307 if ((accb->flags & ACCB_DEVICE_RESET) == 0)
1308 csio->ccb_h.status = CAM_BDR_SENT;
1309 else
1310 csio->ccb_h.status = CAM_CMD_TIMEOUT;
1311 break;
1312 }
1313 if (csio->ccb_h.status != CAM_REQ_CMP) {
1314 xpt_freeze_devq(csio->ccb_h.path, /*count*/1);
1315 csio->ccb_h.status |= CAM_DEV_QFRZN;
1316 }
1317 if ((accb->flags & ACCB_RELEASE_SIMQ) != 0)
1318 ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
1319 ahafreeccb(aha, accb);
1320 xpt_done(ccb);
1321 break;
1322 case AMBI_OK:
1323 /* All completed without incident */
1324 /* XXX DO WE NEED TO COPY SENSE BYTES HERE???? XXX */
1325 /* I don't think so since it works???? */
1326 ccb->ccb_h.status |= CAM_REQ_CMP;
1327 if ((accb->flags & ACCB_RELEASE_SIMQ) != 0)
1328 ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
1329 ahafreeccb(aha, accb);
1330 xpt_done(ccb);
1331 break;
1332 }
1333 }
1334
1335 static int
1336 ahareset(struct aha_softc* aha, int hard_reset)
1337 {
1338 struct ccb_hdr *ccb_h;
1339 u_int status;
1340 u_int timeout;
1341 uint8_t reset_type;
1342
1343 if (hard_reset != 0)
1344 reset_type = HARD_RESET;
1345 else
1346 reset_type = SOFT_RESET;
1347 aha_outb(aha, CONTROL_REG, reset_type);
1348
1349 /* Wait 5sec. for Diagnostic start */
1350 timeout = 5 * 10000;
1351 while (--timeout) {
1352 status = aha_inb(aha, STATUS_REG);
1353 if ((status & DIAG_ACTIVE) != 0)
1354 break;
1355 DELAY(100);
1356 }
1357 if (timeout == 0) {
1358 PRVERB((aha->dev, "ahareset - Diagnostic Active failed to "
1359 "assert. status = %#x\n", status));
1360 return (ETIMEDOUT);
1361 }
1362
1363 /* Wait 10sec. for Diagnostic end */
1364 timeout = 10 * 10000;
1365 while (--timeout) {
1366 status = aha_inb(aha, STATUS_REG);
1367 if ((status & DIAG_ACTIVE) == 0)
1368 break;
1369 DELAY(100);
1370 }
1371 if (timeout == 0) {
1372 panic("%s: ahareset - Diagnostic Active failed to drop. "
1373 "status = 0x%x\n", aha_name(aha), status);
1374 return (ETIMEDOUT);
1375 }
1376
1377 /* Wait for the host adapter to become ready or report a failure */
1378 timeout = 10000;
1379 while (--timeout) {
1380 status = aha_inb(aha, STATUS_REG);
1381 if ((status & (DIAG_FAIL|HA_READY|DATAIN_REG_READY)) != 0)
1382 break;
1383 DELAY(100);
1384 }
1385 if (timeout == 0) {
1386 device_printf(aha->dev, "ahareset - Host adapter failed to "
1387 "come ready. status = 0x%x\n", status);
1388 return (ETIMEDOUT);
1389 }
1390
1391 /* If the diagnostics failed, tell the user */
1392 if ((status & DIAG_FAIL) != 0
1393 || (status & HA_READY) == 0) {
1394 device_printf(aha->dev, "ahareset - Adapter failed diag\n");
1395
1396 if ((status & DATAIN_REG_READY) != 0)
1397 device_printf(aha->dev, "ahareset - Host Adapter "
1398 "Error code = 0x%x\n", aha_inb(aha, DATAIN_REG));
1399 return (ENXIO);
1400 }
1401
1402 /* If we've attached to the XPT, tell it about the event */
1403 if (aha->path != NULL)
1404 xpt_async(AC_BUS_RESET, aha->path, NULL);
1405
1406 /*
1407 * Perform completion processing for all outstanding CCBs.
1408 */
1409 while ((ccb_h = LIST_FIRST(&aha->pending_ccbs)) != NULL) {
1410 struct aha_ccb *pending_accb;
1411
1412 pending_accb = (struct aha_ccb *)ccb_h->ccb_accb_ptr;
1413 pending_accb->hccb.ahastat = AHASTAT_HA_SCSI_BUS_RESET;
1414 ahadone(aha, pending_accb, AMBI_ERROR);
1415 }
1416
1417 /* If we've allocated mailboxes, initialize them */
1418 /* Must be done after we've aborted our queue, or aha_cmd fails */
1419 if (aha->init_level > 4)
1420 ahainitmboxes(aha);
1421
1422 return (0);
1423 }
1424
1425 /*
1426 * Send a command to the adapter.
1427 */
1428 int
1429 aha_cmd(struct aha_softc *aha, aha_op_t opcode, uint8_t *params,
1430 u_int param_len, uint8_t *reply_data, u_int reply_len,
1431 u_int cmd_timeout)
1432 {
1433 u_int timeout;
1434 u_int status;
1435 u_int saved_status;
1436 u_int intstat;
1437 u_int reply_buf_size;
1438 int s;
1439 int cmd_complete;
1440 int error;
1441
1442 /* No data returned to start */
1443 reply_buf_size = reply_len;
1444 reply_len = 0;
1445 intstat = 0;
1446 cmd_complete = 0;
1447 saved_status = 0;
1448 error = 0;
1449
1450 /*
1451 * All commands except for the "start mailbox" and the "enable
1452 * outgoing mailbox read interrupt" commands cannot be issued
1453 * while there are pending transactions. Freeze our SIMQ
1454 * and wait for all completions to occur if necessary.
1455 */
1456 timeout = 10000;
1457 s = splcam();
1458 while (LIST_FIRST(&aha->pending_ccbs) != NULL && --timeout) {
1459 /* Fire the interrupt handler in case interrupts are blocked */
1460 aha_intr(aha);
1461 splx(s);
1462 DELAY(10);
1463 s = splcam();
1464 }
1465 splx(s);
1466
1467 if (timeout == 0) {
1468 device_printf(aha->dev,
1469 "aha_cmd: Timeout waiting for adapter idle\n");
1470 return (ETIMEDOUT);
1471 }
1472 aha->command_cmp = 0;
1473 /*
1474 * Wait up to 10 sec. for the adapter to become
1475 * ready to accept commands.
1476 */
1477 timeout = 100000;
1478 while (--timeout) {
1479 status = aha_inb(aha, STATUS_REG);
1480 if ((status & HA_READY) != 0 && (status & CMD_REG_BUSY) == 0)
1481 break;
1482 /*
1483 * Throw away any pending data which may be
1484 * left over from earlier commands that we
1485 * timedout on.
1486 */
1487 if ((status & DATAIN_REG_READY) != 0)
1488 (void)aha_inb(aha, DATAIN_REG);
1489 DELAY(100);
1490 }
1491 if (timeout == 0) {
1492 device_printf(aha->dev, "aha_cmd: Timeout waiting for adapter"
1493 " ready, status = 0x%x\n", status);
1494 return (ETIMEDOUT);
1495 }
1496
1497 /*
1498 * Send the opcode followed by any necessary parameter bytes.
1499 */
1500 aha_outb(aha, COMMAND_REG, opcode);
1501
1502 /*
1503 * Wait for up to 1sec to get the parameter list sent
1504 */
1505 timeout = 10000;
1506 while (param_len && --timeout) {
1507 DELAY(100);
1508 s = splcam();
1509 status = aha_inb(aha, STATUS_REG);
1510 intstat = aha_inb(aha, INTSTAT_REG);
1511 splx(s);
1512
1513 if ((intstat & (INTR_PENDING|CMD_COMPLETE))
1514 == (INTR_PENDING|CMD_COMPLETE)) {
1515 saved_status = status;
1516 cmd_complete = 1;
1517 break;
1518 }
1519
1520 if (aha->command_cmp != 0) {
1521 saved_status = aha->latched_status;
1522 cmd_complete = 1;
1523 break;
1524 }
1525 if ((status & DATAIN_REG_READY) != 0)
1526 break;
1527 if ((status & CMD_REG_BUSY) == 0) {
1528 aha_outb(aha, COMMAND_REG, *params++);
1529 param_len--;
1530 timeout = 10000;
1531 }
1532 }
1533 if (timeout == 0) {
1534 device_printf(aha->dev, "aha_cmd: Timeout sending parameters, "
1535 "status = 0x%x\n", status);
1536 error = ETIMEDOUT;
1537 }
1538
1539 /*
1540 * For all other commands, we wait for any output data
1541 * and the final comand completion interrupt.
1542 */
1543 while (cmd_complete == 0 && --cmd_timeout) {
1544
1545 s = splcam();
1546 status = aha_inb(aha, STATUS_REG);
1547 intstat = aha_inb(aha, INTSTAT_REG);
1548 splx(s);
1549
1550 if (aha->command_cmp != 0) {
1551 cmd_complete = 1;
1552 saved_status = aha->latched_status;
1553 } else if ((intstat & (INTR_PENDING|CMD_COMPLETE))
1554 == (INTR_PENDING|CMD_COMPLETE)) {
1555 /*
1556 * Our poll (in case interrupts are blocked)
1557 * saw the CMD_COMPLETE interrupt.
1558 */
1559 cmd_complete = 1;
1560 saved_status = status;
1561 }
1562 if ((status & DATAIN_REG_READY) != 0) {
1563 uint8_t data;
1564
1565 data = aha_inb(aha, DATAIN_REG);
1566 if (reply_len < reply_buf_size) {
1567 *reply_data++ = data;
1568 } else {
1569 device_printf(aha->dev,
1570 "aha_cmd - Discarded reply data "
1571 "byte for opcode 0x%x\n", opcode);
1572 }
1573 /*
1574 * Reset timeout to ensure at least a second
1575 * between response bytes.
1576 */
1577 cmd_timeout = MAX(cmd_timeout, 10000);
1578 reply_len++;
1579 }
1580 DELAY(100);
1581 }
1582 if (cmd_timeout == 0) {
1583 device_printf(aha->dev, "aha_cmd: Timeout: status = 0x%x, "
1584 "intstat = 0x%x, reply_len = %d\n", status, intstat,
1585 reply_len);
1586 return (ETIMEDOUT);
1587 }
1588
1589 /*
1590 * Clear any pending interrupts. Block interrupts so our
1591 * interrupt handler is not re-entered.
1592 */
1593 s = splcam();
1594 aha_intr(aha);
1595 splx(s);
1596
1597 if (error != 0)
1598 return (error);
1599
1600 /*
1601 * If the command was rejected by the controller, tell the caller.
1602 */
1603 if ((saved_status & CMD_INVALID) != 0) {
1604 PRVERB((aha->dev, "Invalid Command 0x%x\n", opcode));
1605 /*
1606 * Some early adapters may not recover properly from
1607 * an invalid command. If it appears that the controller
1608 * has wedged (i.e. status was not cleared by our interrupt
1609 * reset above), perform a soft reset.
1610 */
1611 DELAY(1000);
1612 status = aha_inb(aha, STATUS_REG);
1613 if ((status & (CMD_INVALID|STATUS_REG_RSVD|DATAIN_REG_READY|
1614 CMD_REG_BUSY|DIAG_FAIL|DIAG_ACTIVE)) != 0
1615 || (status & (HA_READY|INIT_REQUIRED))
1616 != (HA_READY|INIT_REQUIRED))
1617 ahareset(aha, /*hard_reset*/FALSE);
1618 return (EINVAL);
1619 }
1620
1621 if (param_len > 0) {
1622 /* The controller did not accept the full argument list */
1623 PRVERB((aha->dev, "Controller did not accept full argument "
1624 "list (%d > 0)\n", param_len));
1625 return (E2BIG);
1626 }
1627
1628 if (reply_len != reply_buf_size) {
1629 /* Too much or too little data received */
1630 PRVERB((aha->dev, "data received mismatch (%d != %d)\n",
1631 reply_len, reply_buf_size));
1632 return (EMSGSIZE);
1633 }
1634
1635 /* We were successful */
1636 return (0);
1637 }
1638
1639 static int
1640 ahainitmboxes(struct aha_softc *aha)
1641 {
1642 int error;
1643 init_24b_mbox_params_t init_mbox;
1644
1645 bzero(aha->in_boxes, sizeof(aha_mbox_in_t) * aha->num_boxes);
1646 bzero(aha->out_boxes, sizeof(aha_mbox_out_t) * aha->num_boxes);
1647 aha->cur_inbox = aha->in_boxes;
1648 aha->last_inbox = aha->in_boxes + aha->num_boxes - 1;
1649 aha->cur_outbox = aha->out_boxes;
1650 aha->last_outbox = aha->out_boxes + aha->num_boxes - 1;
1651
1652 /* Tell the adapter about them */
1653 init_mbox.num_mboxes = aha->num_boxes;
1654 ahautoa24(aha->mailbox_physbase, init_mbox.base_addr);
1655 error = aha_cmd(aha, AOP_INITIALIZE_MBOX, (uint8_t *)&init_mbox,
1656 /*parmlen*/sizeof(init_mbox), /*reply_buf*/NULL,
1657 /*reply_len*/0, DEFAULT_CMD_TIMEOUT);
1658
1659 if (error != 0)
1660 printf("ahainitmboxes: Initialization command failed\n");
1661 return (error);
1662 }
1663
1664 /*
1665 * Update the XPT's idea of the negotiated transfer
1666 * parameters for a particular target.
1667 */
1668 static void
1669 ahafetchtransinfo(struct aha_softc *aha, struct ccb_trans_settings* cts)
1670 {
1671 setup_data_t setup_info;
1672 u_int target;
1673 u_int targ_offset;
1674 u_int sync_period;
1675 int error;
1676 uint8_t param;
1677 targ_syncinfo_t sync_info;
1678
1679 target = cts->ccb_h.target_id;
1680 targ_offset = (target & 0x7);
1681
1682 /*
1683 * Inquire Setup Information. This command retreives
1684 * the sync info for older models.
1685 */
1686 param = sizeof(setup_info);
1687 error = aha_cmd(aha, AOP_INQUIRE_SETUP_INFO, ¶m, /*paramlen*/1,
1688 (uint8_t*)&setup_info, sizeof(setup_info), DEFAULT_CMD_TIMEOUT);
1689
1690 if (error != 0) {
1691 device_printf(aha->dev,
1692 "ahafetchtransinfo - Inquire Setup Info Failed %d\n",
1693 error);
1694 return;
1695 }
1696
1697 sync_info = setup_info.syncinfo[targ_offset];
1698
1699 if (sync_info.sync == 0)
1700 cts->sync_offset = 0;
1701 else
1702 cts->sync_offset = sync_info.offset;
1703
1704 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
1705
1706 if (aha->boardid >= BOARD_1542CF)
1707 sync_period = 1000;
1708 else
1709 sync_period = 2000;
1710 sync_period += 500 * sync_info.period;
1711
1712 /* Convert ns value to standard SCSI sync rate */
1713 if (cts->sync_offset != 0)
1714 cts->sync_period = scsi_calc_syncparam(sync_period);
1715 else
1716 cts->sync_period = 0;
1717
1718 cts->valid = CCB_TRANS_SYNC_RATE_VALID
1719 | CCB_TRANS_SYNC_OFFSET_VALID
1720 | CCB_TRANS_BUS_WIDTH_VALID;
1721 xpt_async(AC_TRANSFER_NEG, cts->ccb_h.path, cts);
1722 }
1723
1724 static void
1725 ahamapmboxes(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1726 {
1727 struct aha_softc* aha;
1728
1729 aha = (struct aha_softc*)arg;
1730 aha->mailbox_physbase = segs->ds_addr;
1731 }
1732
1733 static void
1734 ahamapccbs(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1735 {
1736 struct aha_softc* aha;
1737
1738 aha = (struct aha_softc*)arg;
1739 aha->aha_ccb_physbase = segs->ds_addr;
1740 }
1741
1742 static void
1743 ahamapsgs(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1744 {
1745
1746 struct aha_softc* aha;
1747
1748 aha = (struct aha_softc*)arg;
1749 SLIST_FIRST(&aha->sg_maps)->sg_physaddr = segs->ds_addr;
1750 }
1751
1752 static void
1753 ahapoll(struct cam_sim *sim)
1754 {
1755 aha_intr(cam_sim_softc(sim));
1756 }
1757
1758 static void
1759 ahatimeout(void *arg)
1760 {
1761 struct aha_ccb *accb;
1762 union ccb *ccb;
1763 struct aha_softc *aha;
1764 int s;
1765 uint32_t paddr;
1766 struct ccb_hdr *ccb_h;
1767
1768 accb = (struct aha_ccb *)arg;
1769 ccb = accb->ccb;
1770 aha = (struct aha_softc *)ccb->ccb_h.ccb_aha_ptr;
1771 xpt_print_path(ccb->ccb_h.path);
1772 printf("CCB %p - timed out\n", (void *)accb);
1773
1774 s = splcam();
1775
1776 if ((accb->flags & ACCB_ACTIVE) == 0) {
1777 xpt_print_path(ccb->ccb_h.path);
1778 printf("CCB %p - timed out CCB already completed\n",
1779 (void *)accb);
1780 splx(s);
1781 return;
1782 }
1783
1784 /*
1785 * In order to simplify the recovery process, we ask the XPT
1786 * layer to halt the queue of new transactions and we traverse
1787 * the list of pending CCBs and remove their timeouts. This
1788 * means that the driver attempts to clear only one error
1789 * condition at a time. In general, timeouts that occur
1790 * close together are related anyway, so there is no benefit
1791 * in attempting to handle errors in parrallel. Timeouts will
1792 * be reinstated when the recovery process ends.
1793 */
1794 if ((accb->flags & ACCB_DEVICE_RESET) == 0) {
1795 if ((accb->flags & ACCB_RELEASE_SIMQ) == 0) {
1796 xpt_freeze_simq(aha->sim, /*count*/1);
1797 accb->flags |= ACCB_RELEASE_SIMQ;
1798 }
1799
1800 ccb_h = LIST_FIRST(&aha->pending_ccbs);
1801 while (ccb_h != NULL) {
1802 struct aha_ccb *pending_accb;
1803
1804 pending_accb = (struct aha_ccb *)ccb_h->ccb_accb_ptr;
1805 untimeout(ahatimeout, pending_accb, ccb_h->timeout_ch);
1806 ccb_h = LIST_NEXT(ccb_h, sim_links.le);
1807 }
1808 }
1809
1810 if ((accb->flags & ACCB_DEVICE_RESET) != 0
1811 || aha->cur_outbox->action_code != AMBO_FREE) {
1812 /*
1813 * Try a full host adapter/SCSI bus reset.
1814 * We do this only if we have already attempted
1815 * to clear the condition with a BDR, or we cannot
1816 * attempt a BDR for lack of mailbox resources.
1817 */
1818 ccb->ccb_h.status = CAM_CMD_TIMEOUT;
1819 ahareset(aha, /*hardreset*/TRUE);
1820 device_printf(aha->dev, "No longer in timeout\n");
1821 } else {
1822 /*
1823 * Send a Bus Device Reset message:
1824 * The target that is holding up the bus may not
1825 * be the same as the one that triggered this timeout
1826 * (different commands have different timeout lengths),
1827 * but we have no way of determining this from our
1828 * timeout handler. Our strategy here is to queue a
1829 * BDR message to the target of the timed out command.
1830 * If this fails, we'll get another timeout 2 seconds
1831 * later which will attempt a bus reset.
1832 */
1833 accb->flags |= ACCB_DEVICE_RESET;
1834 ccb->ccb_h.timeout_ch = timeout(ahatimeout, (caddr_t)accb, 2 * hz);
1835 aha->recovery_accb->hccb.opcode = INITIATOR_BUS_DEV_RESET;
1836
1837 /* No Data Transfer */
1838 aha->recovery_accb->hccb.datain = TRUE;
1839 aha->recovery_accb->hccb.dataout = TRUE;
1840 aha->recovery_accb->hccb.ahastat = 0;
1841 aha->recovery_accb->hccb.sdstat = 0;
1842 aha->recovery_accb->hccb.target = ccb->ccb_h.target_id;
1843
1844 /* Tell the adapter about this command */
1845 paddr = ahaccbvtop(aha, aha->recovery_accb);
1846 ahautoa24(paddr, aha->cur_outbox->ccb_addr);
1847 aha->cur_outbox->action_code = AMBO_START;
1848 aha_outb(aha, COMMAND_REG, AOP_START_MBOX);
1849 ahanextoutbox(aha);
1850 }
1851
1852 splx(s);
1853 }
1854
1855 int
1856 aha_detach(struct aha_softc *aha)
1857 {
1858 xpt_async(AC_LOST_DEVICE, aha->path, NULL);
1859 xpt_free_path(aha->path);
1860 xpt_bus_deregister(cam_sim_path(aha->sim));
1861 cam_sim_free(aha->sim, /*free_devq*/TRUE);
1862 return (0);
1863 }
1864 MODULE_DEPEND(aha, cam, 1, 1, 1);
Cache object: bb5cff8dffc92444ceab3aaece877d89
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