xref: /freebsd/sys/dev/aac/aac_cam.c (revision c5a8036c3d9ae664e6c964a81735c04d2c142dfd) 
1 /*
2  * Copyright (c) 2002 Adaptec, Inc.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26 
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29 
30 /*
31  * CAM front-end for communicating with non-DASD devices
32  */
33 
34 #include "opt_aac.h"
35 
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/kernel.h>
39 #include <sys/sysctl.h>
40 #include <sys/malloc.h>
41 
42 #include <cam/cam.h>
43 #include <cam/cam_ccb.h>
44 #include <cam/cam_debug.h>
45 #include <cam/cam_sim.h>
46 #include <cam/cam_xpt_sim.h>
47 #include <cam/scsi/scsi_all.h>
48 #include <cam/scsi/scsi_message.h>
49 
50 #include <sys/bus.h>
51 #include <sys/conf.h>
52 #include <sys/disk.h>
53 
54 #include <machine/md_var.h>
55 #include <machine/bus.h>
56 #include <sys/rman.h>
57 
58 #include <vm/vm.h>
59 #include <vm/pmap.h>
60 
61 #include <dev/aac/aacreg.h>
62 #include <dev/aac/aac_ioctl.h>
63 #include <dev/aac/aacvar.h>
64 
65 struct aac_cam {
66 	device_t		dev;
67 	struct aac_sim		*inf;
68 	struct cam_sim		*sim;
69 	struct cam_path		*path;
70 };
71 
72 static int aac_cam_probe(device_t dev);
73 static int aac_cam_attach(device_t dev);
74 static int aac_cam_detach(device_t dev);
75 static void aac_cam_action(struct cam_sim *, union ccb *);
76 static void aac_cam_poll(struct cam_sim *);
77 static void aac_cam_complete(struct aac_command *);
78 static u_int32_t aac_cam_reset_bus(struct cam_sim *, union ccb *);
79 static u_int32_t aac_cam_abort_ccb(struct cam_sim *, union ccb *);
80 static u_int32_t aac_cam_term_io(struct cam_sim *, union ccb *);
81 static int aac_cam_get_tran_settings(struct aac_softc *, struct ccb_trans_settings *, u_int32_t);
82 
83 static devclass_t	aac_pass_devclass;
84 
85 static device_method_t	aac_pass_methods[] = {
86 	DEVMETHOD(device_probe,		aac_cam_probe),
87 	DEVMETHOD(device_attach,	aac_cam_attach),
88 	DEVMETHOD(device_detach,	aac_cam_detach),
89 	{ 0, 0 }
90 };
91 
92 static driver_t	aac_pass_driver = {
93 	"aacp",
94 	aac_pass_methods,
95 	sizeof(struct aac_cam)
96 };
97 
98 DRIVER_MODULE(aacp, aac, aac_pass_driver, aac_pass_devclass, 0, 0);
99 MODULE_DEPEND(aacp, cam, 1, 1, 1);
100 
101 MALLOC_DEFINE(M_AACCAM, "aaccam", "AAC CAM info");
102 
103 static int
104 aac_cam_probe(device_t dev)
105 {
106 	debug_called(2);
107 
108 	return (0);
109 }
110 
111 static int
112 aac_cam_detach(device_t dev)
113 {
114 	struct aac_cam *camsc;
115 	debug_called(2);
116 
117 	camsc = (struct aac_cam *)device_get_softc(dev);
118 
119 	mtx_lock(&Giant);
120 
121 	xpt_async(AC_LOST_DEVICE, camsc->path, NULL);
122 	xpt_free_path(camsc->path);
123 	xpt_bus_deregister(cam_sim_path(camsc->sim));
124 	cam_sim_free(camsc->sim, /*free_devq*/TRUE);
125 
126 	mtx_unlock(&Giant);
127 
128 	return (0);
129 }
130 
131 /*
132  * Register the driver as a CAM SIM
133  */
134 static int
135 aac_cam_attach(device_t dev)
136 {
137 	struct cam_devq *devq;
138 	struct cam_sim *sim;
139 	struct cam_path *path;
140 	struct aac_cam *camsc;
141 	struct aac_sim *inf;
142 
143 	debug_called(1);
144 
145 	camsc = (struct aac_cam *)device_get_softc(dev);
146 	inf = (struct aac_sim *)device_get_ivars(dev);
147 	camsc->inf = inf;
148 
149 	devq = cam_simq_alloc(inf->TargetsPerBus);
150 	if (devq == NULL)
151 		return (EIO);
152 
153 	sim = cam_sim_alloc(aac_cam_action, aac_cam_poll, "aacp", camsc,
154 	    device_get_unit(dev), 1, 1, devq);
155 	if (sim == NULL) {
156 		cam_simq_free(devq);
157 		return (EIO);
158 	}
159 
160 	/* Since every bus has it's own sim, every bus 'appears' as bus 0 */
161 	if (xpt_bus_register(sim, 0) != CAM_SUCCESS) {
162 		cam_sim_free(sim, TRUE);
163 		return (EIO);
164 	}
165 
166 	if (xpt_create_path(&path, NULL, cam_sim_path(sim),
167 	    CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
168 		xpt_bus_deregister(cam_sim_path(sim));
169 		cam_sim_free(sim, TRUE);
170 		return (EIO);
171 	}
172 
173 	camsc->sim = sim;
174 	camsc->path = path;
175 
176 	return (0);
177 }
178 
179 static void
180 aac_cam_action(struct cam_sim *sim, union ccb *ccb)
181 {
182 	struct	aac_cam *camsc;
183 	struct	aac_softc *sc;
184 	struct	aac_srb32 *srb;
185 	struct	aac_fib *fib;
186 	struct	aac_command *cm;
187 
188 	debug_called(2);
189 
190 	camsc = (struct aac_cam *)cam_sim_softc(sim);
191 	sc = camsc->inf->aac_sc;
192 
193 	/* Synchronous ops, and ops that don't require communication with the
194 	 * controller */
195 	switch(ccb->ccb_h.func_code) {
196 	case XPT_SCSI_IO:
197 	case XPT_RESET_DEV:
198 		/* These are handled down below */
199 		break;
200 	case XPT_CALC_GEOMETRY:
201 	{
202 		struct ccb_calc_geometry *ccg;
203 		u_int32_t size_mb;
204 		u_int32_t secs_per_cylinder;
205 
206 		ccg = &ccb->ccg;
207 		size_mb = ccg->volume_size /
208 		    ((1024L * 1024L) / ccg->block_size);
209 		if (size_mb >= (2 * 1024)) {		/* 2GB */
210 			ccg->heads = 255;
211 			ccg->secs_per_track = 63;
212 		} else if (size_mb >= (1 * 1024)) {	/* 1GB */
213 			ccg->heads = 128;
214 			ccg->secs_per_track = 32;
215 		} else {
216 			ccg->heads = 64;
217 			ccg->secs_per_track = 32;
218 		}
219 		secs_per_cylinder = ccg->heads * ccg->secs_per_track;
220 		ccg->cylinders = ccg->volume_size / secs_per_cylinder;
221 
222 		ccb->ccb_h.status = CAM_REQ_CMP;
223 		xpt_done(ccb);
224 		return;
225 	}
226 	case XPT_PATH_INQ:
227 	{
228 		struct ccb_pathinq *cpi = &ccb->cpi;
229 
230 		cpi->version_num = 1;
231 		cpi->hba_inquiry = PI_WIDE_16;
232 		cpi->target_sprt = 0;
233 
234 		/* Resetting via the passthrough causes problems. */
235 		cpi->hba_misc = PIM_NOBUSRESET;
236 		cpi->hba_eng_cnt = 0;
237 		cpi->max_target = camsc->inf->TargetsPerBus;
238 		cpi->max_lun = 8;	/* Per the controller spec */
239 		cpi->initiator_id = camsc->inf->InitiatorBusId;
240 		cpi->bus_id = camsc->inf->BusNumber;
241 		cpi->base_transfer_speed = 3300;
242 		strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
243 		strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN);
244 		strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
245 		cpi->unit_number = cam_sim_unit(sim);
246 
247 		ccb->ccb_h.status = CAM_REQ_CMP;
248 		xpt_done(ccb);
249 		return;
250 	}
251 	case XPT_GET_TRAN_SETTINGS:
252 	{
253 		u_int32_t handle;
254 
255 		handle = AAC_BTL_TO_HANDLE(camsc->inf->BusNumber,
256 		    ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
257 		ccb->ccb_h.status = aac_cam_get_tran_settings(sc, &ccb->cts,
258 		    handle);
259 		xpt_done(ccb);
260 		return;
261 	}
262 	case XPT_SET_TRAN_SETTINGS:
263 		ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
264 		xpt_done(ccb);
265 		return;
266 	case XPT_RESET_BUS:
267 		if (!(sc->flags & AAC_FLAGS_CAM_NORESET)) {
268 			ccb->ccb_h.status = aac_cam_reset_bus(sim, ccb);
269 		} else {
270 			ccb->ccb_h.status = CAM_REQ_CMP;
271 		}
272 		xpt_done(ccb);
273 		return;
274 	case XPT_ABORT:
275 		ccb->ccb_h.status = aac_cam_abort_ccb(sim, ccb);
276 		xpt_done(ccb);
277 		return;
278 	case XPT_TERM_IO:
279 		ccb->ccb_h.status = aac_cam_term_io(sim, ccb);
280 		xpt_done(ccb);
281 		return;
282 	default:
283 		device_printf(sc->aac_dev, "Unsupported command 0x%x\n",
284 		    ccb->ccb_h.func_code);
285 		ccb->ccb_h.status = CAM_PROVIDE_FAIL;
286 		xpt_done(ccb);
287 		return;
288 	}
289 
290 	/* Async ops that require communcation with the controller */
291 
292 	AAC_LOCK_ACQUIRE(&sc->aac_io_lock);
293 	if (aac_alloc_command(sc, &cm)) {
294 		AAC_LOCK_RELEASE(&sc->aac_io_lock);
295 		xpt_freeze_simq(sim, 1);
296 		ccb->ccb_h.status = CAM_REQUEUE_REQ;
297 		xpt_done(ccb);
298 		return;
299 	}
300 
301 	fib = cm->cm_fib;
302 	srb = (struct aac_srb32 *)&fib->data[0];
303 	cm->cm_datalen = 0;
304 
305 	switch (ccb->ccb_h.flags & CAM_DIR_MASK) {
306 	case CAM_DIR_IN:
307 		srb->flags = AAC_SRB_FLAGS_DATA_IN;
308 		cm->cm_flags |= AAC_CMD_DATAIN;
309 		break;
310 	case CAM_DIR_OUT:
311 		srb->flags = AAC_SRB_FLAGS_DATA_OUT;
312 		cm->cm_flags |= AAC_CMD_DATAOUT;
313 		break;
314 	case CAM_DIR_NONE:
315 		srb->flags = AAC_SRB_FLAGS_NO_DATA_XFER;
316 		break;
317 	default:
318 		srb->flags = AAC_SRB_FLAGS_UNSPECIFIED_DIRECTION;
319 		cm->cm_flags |= AAC_CMD_DATAIN | AAC_CMD_DATAOUT;
320 		break;
321 	}
322 
323 	switch(ccb->ccb_h.func_code) {
324 	case XPT_SCSI_IO:
325 	{
326 		struct ccb_scsiio *csio = &ccb->csio;
327 
328 		srb->function = AAC_SRB_FUNC_EXECUTE_SCSI;
329 
330 		/*
331 		 * Copy the CDB into the SRB.  It's only 6-16 bytes,
332 		 * so a copy is not too expensive.
333 		 */
334 		srb->cdb_len = csio->cdb_len;
335 		if (ccb->ccb_h.flags & CAM_CDB_POINTER)
336 			bcopy(csio->cdb_io.cdb_ptr, (u_int8_t *)&srb->cdb[0],
337 			    srb->cdb_len);
338 		else
339 			bcopy(csio->cdb_io.cdb_bytes, (u_int8_t *)&srb->cdb[0],
340 			    srb->cdb_len);
341 
342 		/* Map the s/g list. XXX 32bit addresses only! */
343 		if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
344 			if ((ccb->ccb_h.flags & CAM_SCATTER_VALID) == 0) {
345 				srb->data_len = csio->dxfer_len;
346 				if (ccb->ccb_h.flags & CAM_DATA_PHYS) {
347 					/*
348 					 * XXX This isn't 64-bit clean.
349 					 * However, this condition is not
350 					 * normally used in CAM.
351 					 */
352 					srb->sg_map32.SgCount = 1;
353 					srb->sg_map32.SgEntry[0].SgAddress =
354 					    (uint32_t)(uintptr_t)csio->data_ptr;
355 					srb->sg_map32.SgEntry[0].SgByteCount =
356 					    csio->dxfer_len;
357 				} else {
358 					/*
359 					 * Arrange things so that the S/G
360 					 * map will get set up automagically
361 					 */
362 					cm->cm_data = (void *)csio->data_ptr;
363 					cm->cm_datalen = csio->dxfer_len;
364 					cm->cm_sgtable = &srb->sg_map32;
365 				}
366 			} else {
367 				/* XXX Need to handle multiple s/g elements */
368 				panic("aac_cam: multiple s/g elements");
369 			}
370 		} else {
371 			srb->sg_map32.SgCount = 0;
372 			srb->sg_map32.SgEntry[0].SgByteCount = 0;
373 			srb->data_len = 0;
374 		}
375 
376 		break;
377 	}
378 	case XPT_RESET_DEV:
379 		if (!(sc->flags & AAC_FLAGS_CAM_NORESET)) {
380 			srb->function = AAC_SRB_FUNC_RESET_DEVICE;
381 			break;
382 		} else {
383 			ccb->ccb_h.status = CAM_REQ_CMP;
384 			xpt_done(ccb);
385 			return;
386 		}
387 	default:
388 		break;
389 	}
390 
391 	srb->bus = camsc->inf->BusNumber; /* Bus number relative to the card */
392 	srb->target = ccb->ccb_h.target_id;
393 	srb->lun = ccb->ccb_h.target_lun;
394 	srb->timeout = ccb->ccb_h.timeout;	/* XXX */
395 	srb->retry_limit = 0;
396 
397 	cm->cm_complete = aac_cam_complete;
398 	cm->cm_private = ccb;
399 	cm->cm_timestamp = time_second;
400 	cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE;
401 
402 	fib->Header.XferState =
403 	    AAC_FIBSTATE_HOSTOWNED	|
404 	    AAC_FIBSTATE_INITIALISED	|
405 	    AAC_FIBSTATE_FROMHOST	|
406 	    AAC_FIBSTATE_REXPECTED	|
407 	    AAC_FIBSTATE_NORM;
408 	fib->Header.Command = ScsiPortCommand;
409 	fib->Header.Size = sizeof(struct aac_fib_header) +
410 	    sizeof(struct aac_srb32);
411 
412 	aac_enqueue_ready(cm);
413 	aac_startio(cm->cm_sc);
414 
415 	AAC_LOCK_RELEASE(&sc->aac_io_lock);
416 
417 	return;
418 }
419 
420 static void
421 aac_cam_poll(struct cam_sim *sim)
422 {
423 	/*
424 	 * Pinging the interrupt routine isn't very safe, nor is it
425 	 * really necessary.  Do nothing.
426 	 */
427 }
428 
429 static void
430 aac_cam_complete(struct aac_command *cm)
431 {
432 	union	ccb *ccb;
433 	struct 	aac_srb_response *srbr;
434 	struct	aac_softc *sc;
435 
436 	debug_called(2);
437 
438 	sc = cm->cm_sc;
439 	ccb = cm->cm_private;
440 	srbr = (struct aac_srb_response *)&cm->cm_fib->data[0];
441 
442 	if (srbr->fib_status != 0) {
443 		device_printf(sc->aac_dev, "Passthru FIB failed!\n");
444 		ccb->ccb_h.status = CAM_REQ_ABORTED;
445 	} else {
446 		/*
447 		 * The SRB error codes just happen to match the CAM error
448 		 * codes.  How convienient!
449 		 */
450 		ccb->ccb_h.status = srbr->srb_status;
451 
452 		/* Take care of SCSI_IO ops. */
453 		if (ccb->ccb_h.func_code == XPT_SCSI_IO) {
454 			u_int8_t command, device;
455 
456 			ccb->csio.scsi_status = srbr->scsi_status;
457 
458 			/* Take care of autosense */
459 			if (srbr->sense_len) {
460 				int sense_len, scsi_sense_len;
461 
462 				scsi_sense_len = sizeof(struct scsi_sense_data);
463 				bzero(&ccb->csio.sense_data, scsi_sense_len);
464 				sense_len = (srbr->sense_len >
465 				    scsi_sense_len) ? scsi_sense_len :
466 				    srbr->sense_len;
467 				bcopy(&srbr->sense[0], &ccb->csio.sense_data,
468 				    srbr->sense_len);
469 				ccb->csio.sense_len = sense_len;
470 				ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
471 				scsi_sense_print(&ccb->csio);
472 			}
473 
474 			/* If this is an inquiry command, fake things out */
475 			if (ccb->ccb_h.flags & CAM_CDB_POINTER)
476 				command = ccb->csio.cdb_io.cdb_ptr[0];
477 			else
478 				command = ccb->csio.cdb_io.cdb_bytes[0];
479 
480 			if ((command == INQUIRY) &&
481 			    (ccb->ccb_h.status == CAM_REQ_CMP)) {
482 				device = ccb->csio.data_ptr[0] & 0x1f;
483 				/*
484 				 * We want DASD and PROC devices to only be
485 				 * visible through the pass device.
486 				 */
487 				if ((device == T_DIRECT) ||
488 				    (device == T_PROCESSOR) ||
489 				    (sc->flags & AAC_FLAGS_CAM_PASSONLY))
490 					ccb->csio.data_ptr[0] =
491 					    ((device & 0xe0) | T_NODEVICE);
492 			}
493 		}
494 	}
495 
496 	aac_release_command(cm);
497 
498 	AAC_LOCK_RELEASE(&sc->aac_io_lock);
499 	mtx_lock(&Giant);
500 	xpt_done(ccb);
501 	mtx_unlock(&Giant);
502 	AAC_LOCK_ACQUIRE(&sc->aac_io_lock);
503 
504 	return;
505 }
506 
507 static u_int32_t
508 aac_cam_reset_bus(struct cam_sim *sim, union ccb *ccb)
509 {
510 	struct aac_fib *fib;
511 	struct aac_softc *sc;
512 	struct aac_cam *camsc;
513 	struct aac_vmioctl *vmi;
514 	struct aac_resetbus *rbc;
515 	int e;
516 
517 	camsc = (struct aac_cam *)cam_sim_softc(sim);
518 	sc = camsc->inf->aac_sc;
519 
520 	if (sc == NULL) {
521 		printf("Null sc?\n");
522 		return (CAM_REQ_ABORTED);
523 	}
524 
525 	aac_alloc_sync_fib(sc, &fib, 0);
526 
527 	vmi = (struct aac_vmioctl *)&fib->data[0];
528 	bzero(vmi, sizeof(struct aac_vmioctl));
529 
530 	vmi->Command = VM_Ioctl;
531 	vmi->ObjType = FT_DRIVE;
532 	vmi->MethId = sc->scsi_method_id;
533 	vmi->ObjId = 0;
534 	vmi->IoctlCmd = ResetBus;
535 
536 	rbc = (struct aac_resetbus *)&vmi->IoctlBuf[0];
537 	rbc->BusNumber = camsc->inf->BusNumber;
538 
539 	e = aac_sync_fib(sc, ContainerCommand, 0, fib,
540 	    sizeof(struct aac_vmioctl));
541 	if (e) {
542 		device_printf(sc->aac_dev,"Error %d sending ResetBus command\n",
543 		    e);
544 		aac_release_sync_fib(sc);
545 		return (CAM_REQ_ABORTED);
546 	}
547 
548 	aac_release_sync_fib(sc);
549 	return (CAM_REQ_CMP);
550 }
551 
552 static u_int32_t
553 aac_cam_abort_ccb(struct cam_sim *sim, union ccb *ccb)
554 {
555 	return (CAM_UA_ABORT);
556 }
557 
558 static u_int32_t
559 aac_cam_term_io(struct cam_sim *sim, union ccb *ccb)
560 {
561 	return (CAM_UA_TERMIO);
562 }
563 
564 static int
565 aac_cam_get_tran_settings(struct aac_softc *sc, struct ccb_trans_settings *cts, u_int32_t handle)
566 {
567 	struct aac_fib *fib;
568 	struct aac_vmioctl *vmi;
569 	struct aac_vmi_devinfo_resp *vmi_resp;
570 	int error;
571 
572 	aac_alloc_sync_fib(sc, &fib, 0);
573 	vmi = (struct aac_vmioctl *)&fib->data[0];
574 	bzero(vmi, sizeof(struct aac_vmioctl));
575 
576 	vmi->Command = VM_Ioctl;
577 	vmi->ObjType = FT_DRIVE;
578 	vmi->MethId = sc->scsi_method_id;
579 	vmi->ObjId = handle;
580 	vmi->IoctlCmd = GetDeviceProbeInfo;
581 
582 	error = aac_sync_fib(sc, ContainerCommand, 0, fib,
583 	    sizeof(struct aac_vmioctl));
584 	if (error) {
585 		device_printf(sc->aac_dev, "Error %d sending GetDeviceProbeInfo"
586 		              " command\n", error);
587 		aac_release_sync_fib(sc);
588 		return (CAM_REQ_INVALID);
589 	}
590 
591 	vmi_resp = (struct aac_vmi_devinfo_resp *)&fib->data[0];
592 	if (vmi_resp->Status != ST_OK) {
593 		/*
594 		 * The only reason why this command will return an error is
595 		 * if the requested device doesn't exist.
596 		 */
597 		debug(1, "GetDeviceProbeInfo returned %d\n", vmi_resp->Status);
598 		aac_release_sync_fib(sc);
599 		return (CAM_DEV_NOT_THERE);
600 	}
601 
602 	cts->bus_width = ((vmi_resp->Inquiry7 & 0x60) >> 5);
603 	cts->valid = CCB_TRANS_BUS_WIDTH_VALID;
604 
605 	if (vmi_resp->ScsiRate) {
606 		cts->sync_period =
607 		    scsi_calc_syncparam((10000 / vmi_resp->ScsiRate));
608 		cts->sync_offset = vmi_resp->ScsiOffset;
609 		cts->valid |= CCB_TRANS_SYNC_RATE_VALID		|
610 			      CCB_TRANS_SYNC_OFFSET_VALID;
611 	}
612 
613 	cts->flags &= ~(CCB_TRANS_DISC_ENB | CCB_TRANS_TAG_ENB);
614 	cts->valid |= CCB_TRANS_DISC_VALID		|
615 		      CCB_TRANS_TQ_VALID;
616 
617 	aac_release_sync_fib(sc);
618 	return (CAM_REQ_CMP);
619 }
620