xref: /freebsd/sys/cam/ata/ata_xpt.c (revision d30a1689f5b37e78ea189232a8b94a7011dc0dc8)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2009 Alexander Motin <mav@FreeBSD.org>
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer,
12  *    without modification, immediately at the beginning of the file.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
31 
32 #include <sys/param.h>
33 #include <sys/bus.h>
34 #include <sys/endian.h>
35 #include <sys/systm.h>
36 #include <sys/types.h>
37 #include <sys/malloc.h>
38 #include <sys/kernel.h>
39 #include <sys/time.h>
40 #include <sys/conf.h>
41 #include <sys/fcntl.h>
42 #include <sys/sbuf.h>
43 
44 #include <sys/eventhandler.h>
45 #include <sys/lock.h>
46 #include <sys/mutex.h>
47 #include <sys/sysctl.h>
48 
49 #include <cam/cam.h>
50 #include <cam/cam_ccb.h>
51 #include <cam/cam_queue.h>
52 #include <cam/cam_periph.h>
53 #include <cam/cam_sim.h>
54 #include <cam/cam_xpt.h>
55 #include <cam/cam_xpt_sim.h>
56 #include <cam/cam_xpt_periph.h>
57 #include <cam/cam_xpt_internal.h>
58 #include <cam/cam_debug.h>
59 
60 #include <cam/scsi/scsi_all.h>
61 #include <cam/scsi/scsi_message.h>
62 #include <cam/ata/ata_all.h>
63 #include <machine/stdarg.h>	/* for xpt_print below */
64 #include "opt_cam.h"
65 
66 struct ata_quirk_entry {
67 	struct scsi_inquiry_pattern inq_pat;
68 	u_int8_t quirks;
69 #define	CAM_QUIRK_MAXTAGS	0x01
70 	u_int mintags;
71 	u_int maxtags;
72 };
73 
74 static periph_init_t aprobe_periph_init;
75 
76 static struct periph_driver aprobe_driver =
77 {
78 	aprobe_periph_init, "aprobe",
79 	TAILQ_HEAD_INITIALIZER(aprobe_driver.units), /* generation */ 0,
80 	CAM_PERIPH_DRV_EARLY
81 };
82 
83 PERIPHDRIVER_DECLARE(aprobe, aprobe_driver);
84 
85 typedef enum {
86 	PROBE_RESET,
87 	PROBE_IDENTIFY,
88 	PROBE_SPINUP,
89 	PROBE_SETMODE,
90 	PROBE_SETPM,
91 	PROBE_SETAPST,
92 	PROBE_SETDMAAA,
93 	PROBE_SETAN,
94 	PROBE_SET_MULTI,
95 	PROBE_INQUIRY,
96 	PROBE_FULL_INQUIRY,
97 	PROBE_PM_PID,
98 	PROBE_PM_PRV,
99 	PROBE_IDENTIFY_SES,
100 	PROBE_IDENTIFY_SAFTE,
101 	PROBE_DONE,
102 	PROBE_INVALID
103 } aprobe_action;
104 
105 static char *probe_action_text[] = {
106 	"PROBE_RESET",
107 	"PROBE_IDENTIFY",
108 	"PROBE_SPINUP",
109 	"PROBE_SETMODE",
110 	"PROBE_SETPM",
111 	"PROBE_SETAPST",
112 	"PROBE_SETDMAAA",
113 	"PROBE_SETAN",
114 	"PROBE_SET_MULTI",
115 	"PROBE_INQUIRY",
116 	"PROBE_FULL_INQUIRY",
117 	"PROBE_PM_PID",
118 	"PROBE_PM_PRV",
119 	"PROBE_IDENTIFY_SES",
120 	"PROBE_IDENTIFY_SAFTE",
121 	"PROBE_DONE",
122 	"PROBE_INVALID"
123 };
124 
125 #define PROBE_SET_ACTION(softc, newaction)	\
126 do {									\
127 	char **text;							\
128 	text = probe_action_text;					\
129 	CAM_DEBUG((softc)->periph->path, CAM_DEBUG_PROBE,		\
130 	    ("Probe %s to %s\n", text[(softc)->action],			\
131 	    text[(newaction)]));					\
132 	(softc)->action = (newaction);					\
133 } while(0)
134 
135 typedef enum {
136 	PROBE_NO_ANNOUNCE	= 0x04
137 } aprobe_flags;
138 
139 typedef struct {
140 	TAILQ_HEAD(, ccb_hdr) request_ccbs;
141 	struct ata_params	ident_data;
142 	aprobe_action	action;
143 	aprobe_flags	flags;
144 	uint32_t	pm_pid;
145 	uint32_t	pm_prv;
146 	int		restart;
147 	int		spinup;
148 	int		faults;
149 	u_int		caps;
150 	struct cam_periph *periph;
151 } aprobe_softc;
152 
153 static struct ata_quirk_entry ata_quirk_table[] =
154 {
155 	{
156 		/* Default tagged queuing parameters for all devices */
157 		{
158 		  T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED,
159 		  /*vendor*/"*", /*product*/"*", /*revision*/"*"
160 		},
161 		/*quirks*/0, /*mintags*/0, /*maxtags*/0
162 	},
163 };
164 
165 static cam_status	aproberegister(struct cam_periph *periph, void *arg);
166 static void	 aprobeschedule(struct cam_periph *probe_periph);
167 static void	 aprobestart(struct cam_periph *periph, union ccb *start_ccb);
168 static void	 aproberequestdefaultnegotiation(struct cam_periph *periph);
169 static void	 aprobedone(struct cam_periph *periph, union ccb *done_ccb);
170 static void	 aprobecleanup(struct cam_periph *periph);
171 static void	 ata_find_quirk(struct cam_ed *device);
172 static void	 ata_scan_bus(struct cam_periph *periph, union ccb *ccb);
173 static void	 ata_scan_lun(struct cam_periph *periph,
174 			       struct cam_path *path, cam_flags flags,
175 			       union ccb *ccb);
176 static void	 axptscandone(struct cam_periph *periph, union ccb *done_ccb);
177 static struct cam_ed *
178 		 ata_alloc_device(struct cam_eb *bus, struct cam_et *target,
179 				   lun_id_t lun_id);
180 static void	 ata_device_transport(struct cam_path *path);
181 static void	 ata_get_transfer_settings(struct ccb_trans_settings *cts);
182 static void	 ata_set_transfer_settings(struct ccb_trans_settings *cts,
183 					    struct cam_path *path,
184 					    int async_update);
185 static void	 ata_dev_async(u_int32_t async_code,
186 				struct cam_eb *bus,
187 				struct cam_et *target,
188 				struct cam_ed *device,
189 				void *async_arg);
190 static void	 ata_action(union ccb *start_ccb);
191 static void	 ata_announce_periph(struct cam_periph *periph);
192 static void	 ata_announce_periph_sbuf(struct cam_periph *periph, struct sbuf *sb);
193 static void	 ata_proto_announce(struct cam_ed *device);
194 static void	 ata_proto_announce_sbuf(struct cam_ed *device, struct sbuf *sb);
195 static void	 ata_proto_denounce(struct cam_ed *device);
196 static void	 ata_proto_denounce_sbuf(struct cam_ed *device, struct sbuf *sb);
197 static void	 ata_proto_debug_out(union ccb *ccb);
198 static void	 semb_proto_announce(struct cam_ed *device);
199 static void	 semb_proto_announce_sbuf(struct cam_ed *device, struct sbuf *sb);
200 static void	 semb_proto_denounce(struct cam_ed *device);
201 static void	 semb_proto_denounce_sbuf(struct cam_ed *device, struct sbuf *sb);
202 
203 static int ata_dma = 1;
204 static int atapi_dma = 1;
205 
206 TUNABLE_INT("hw.ata.ata_dma", &ata_dma);
207 TUNABLE_INT("hw.ata.atapi_dma", &atapi_dma);
208 
209 static struct xpt_xport_ops ata_xport_ops = {
210 	.alloc_device = ata_alloc_device,
211 	.action = ata_action,
212 	.async = ata_dev_async,
213 	.announce = ata_announce_periph,
214 	.announce_sbuf = ata_announce_periph_sbuf,
215 };
216 #define ATA_XPT_XPORT(x, X)			\
217 static struct xpt_xport ata_xport_ ## x = {	\
218 	.xport = XPORT_ ## X,			\
219 	.name = #x,				\
220 	.ops = &ata_xport_ops,			\
221 };						\
222 CAM_XPT_XPORT(ata_xport_ ## x);
223 
224 ATA_XPT_XPORT(ata, ATA);
225 ATA_XPT_XPORT(sata, SATA);
226 
227 #undef ATA_XPORT_XPORT
228 
229 static struct xpt_proto_ops ata_proto_ops_ata = {
230 	.announce = ata_proto_announce,
231 	.announce_sbuf = ata_proto_announce_sbuf,
232 	.denounce = ata_proto_denounce,
233 	.denounce_sbuf = ata_proto_denounce_sbuf,
234 	.debug_out = ata_proto_debug_out,
235 };
236 static struct xpt_proto ata_proto_ata = {
237 	.proto = PROTO_ATA,
238 	.name = "ata",
239 	.ops = &ata_proto_ops_ata,
240 };
241 
242 static struct xpt_proto_ops ata_proto_ops_satapm = {
243 	.announce = ata_proto_announce,
244 	.announce_sbuf = ata_proto_announce_sbuf,
245 	.denounce = ata_proto_denounce,
246 	.denounce_sbuf = ata_proto_denounce_sbuf,
247 	.debug_out = ata_proto_debug_out,
248 };
249 static struct xpt_proto ata_proto_satapm = {
250 	.proto = PROTO_SATAPM,
251 	.name = "satapm",
252 	.ops = &ata_proto_ops_satapm,
253 };
254 
255 static struct xpt_proto_ops ata_proto_ops_semb = {
256 	.announce = semb_proto_announce,
257 	.announce_sbuf = semb_proto_announce_sbuf,
258 	.denounce = semb_proto_denounce,
259 	.denounce_sbuf = semb_proto_denounce_sbuf,
260 	.debug_out = ata_proto_debug_out,
261 };
262 static struct xpt_proto ata_proto_semb = {
263 	.proto = PROTO_SEMB,
264 	.name = "semb",
265 	.ops = &ata_proto_ops_semb,
266 };
267 
268 CAM_XPT_PROTO(ata_proto_ata);
269 CAM_XPT_PROTO(ata_proto_satapm);
270 CAM_XPT_PROTO(ata_proto_semb);
271 
272 static void
273 aprobe_periph_init(void)
274 {
275 }
276 
277 static cam_status
278 aproberegister(struct cam_periph *periph, void *arg)
279 {
280 	union ccb *request_ccb;	/* CCB representing the probe request */
281 	aprobe_softc *softc;
282 
283 	request_ccb = (union ccb *)arg;
284 	if (request_ccb == NULL) {
285 		printf("proberegister: no probe CCB, "
286 		       "can't register device\n");
287 		return(CAM_REQ_CMP_ERR);
288 	}
289 
290 	softc = (aprobe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_ZERO | M_NOWAIT);
291 
292 	if (softc == NULL) {
293 		printf("proberegister: Unable to probe new device. "
294 		       "Unable to allocate softc\n");
295 		return(CAM_REQ_CMP_ERR);
296 	}
297 	TAILQ_INIT(&softc->request_ccbs);
298 	TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h,
299 			  periph_links.tqe);
300 	softc->flags = 0;
301 	periph->softc = softc;
302 	softc->periph = periph;
303 	softc->action = PROBE_INVALID;
304 	if (cam_periph_acquire(periph) != 0)
305 		return (CAM_REQ_CMP_ERR);
306 
307 	CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe started\n"));
308 	ata_device_transport(periph->path);
309 	aprobeschedule(periph);
310 	return(CAM_REQ_CMP);
311 }
312 
313 static void
314 aprobeschedule(struct cam_periph *periph)
315 {
316 	union ccb *ccb;
317 	aprobe_softc *softc;
318 
319 	softc = (aprobe_softc *)periph->softc;
320 	ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs);
321 
322 	if ((periph->path->device->flags & CAM_DEV_UNCONFIGURED) ||
323 	    periph->path->device->protocol == PROTO_SATAPM ||
324 	    periph->path->device->protocol == PROTO_SEMB)
325 		PROBE_SET_ACTION(softc, PROBE_RESET);
326 	else
327 		PROBE_SET_ACTION(softc, PROBE_IDENTIFY);
328 
329 	if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE)
330 		softc->flags |= PROBE_NO_ANNOUNCE;
331 	else
332 		softc->flags &= ~PROBE_NO_ANNOUNCE;
333 
334 	xpt_schedule(periph, CAM_PRIORITY_XPT);
335 }
336 
337 static void
338 aprobestart(struct cam_periph *periph, union ccb *start_ccb)
339 {
340 	struct ccb_trans_settings cts;
341 	struct ccb_ataio *ataio;
342 	struct ccb_scsiio *csio;
343 	aprobe_softc *softc;
344 	struct cam_path *path;
345 	struct ata_params *ident_buf;
346 	u_int oif;
347 
348 	CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("aprobestart\n"));
349 
350 	softc = (aprobe_softc *)periph->softc;
351 	path = start_ccb->ccb_h.path;
352 	ataio = &start_ccb->ataio;
353 	csio = &start_ccb->csio;
354 	ident_buf = &periph->path->device->ident_data;
355 
356 	if (softc->restart) {
357 		softc->restart = 0;
358 		if ((path->device->flags & CAM_DEV_UNCONFIGURED) ||
359 		    path->device->protocol == PROTO_SATAPM ||
360 		    path->device->protocol == PROTO_SEMB)
361 			softc->action = PROBE_RESET;
362 		else
363 			softc->action = PROBE_IDENTIFY;
364 	}
365 	switch (softc->action) {
366 	case PROBE_RESET:
367 		cam_fill_ataio(ataio,
368 		      0,
369 		      aprobedone,
370 		      /*flags*/CAM_DIR_NONE,
371 		      0,
372 		      /*data_ptr*/NULL,
373 		      /*dxfer_len*/0,
374 		      15 * 1000);
375 		ata_reset_cmd(ataio);
376 		break;
377 	case PROBE_IDENTIFY:
378 		cam_fill_ataio(ataio,
379 		      1,
380 		      aprobedone,
381 		      /*flags*/CAM_DIR_IN,
382 		      0,
383 		      /*data_ptr*/(u_int8_t *)&softc->ident_data,
384 		      /*dxfer_len*/sizeof(softc->ident_data),
385 		      30 * 1000);
386 		if (path->device->protocol == PROTO_ATA)
387 			ata_28bit_cmd(ataio, ATA_ATA_IDENTIFY, 0, 0, 0);
388 		else
389 			ata_28bit_cmd(ataio, ATA_ATAPI_IDENTIFY, 0, 0, 0);
390 		break;
391 	case PROBE_SPINUP:
392 		if (bootverbose)
393 			xpt_print(path, "Spinning up device\n");
394 		cam_fill_ataio(ataio,
395 		      1,
396 		      aprobedone,
397 		      /*flags*/CAM_DIR_NONE | CAM_HIGH_POWER,
398 		      0,
399 		      /*data_ptr*/NULL,
400 		      /*dxfer_len*/0,
401 		      30 * 1000);
402 		ata_28bit_cmd(ataio, ATA_SETFEATURES, ATA_SF_PUIS_SPINUP, 0, 0);
403 		break;
404 	case PROBE_SETMODE:
405 	{
406 		int mode, wantmode;
407 
408 		mode = 0;
409 		/* Fetch user modes from SIM. */
410 		bzero(&cts, sizeof(cts));
411 		xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE);
412 		cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
413 		cts.type = CTS_TYPE_USER_SETTINGS;
414 		xpt_action((union ccb *)&cts);
415 		if (path->device->transport == XPORT_ATA) {
416 			if (cts.xport_specific.ata.valid & CTS_ATA_VALID_MODE)
417 				mode = cts.xport_specific.ata.mode;
418 		} else {
419 			if (cts.xport_specific.sata.valid & CTS_SATA_VALID_MODE)
420 				mode = cts.xport_specific.sata.mode;
421 		}
422 		if (path->device->protocol == PROTO_ATA) {
423 			if (ata_dma == 0 && (mode == 0 || mode > ATA_PIO_MAX))
424 				mode = ATA_PIO_MAX;
425 		} else {
426 			if (atapi_dma == 0 && (mode == 0 || mode > ATA_PIO_MAX))
427 				mode = ATA_PIO_MAX;
428 		}
429 negotiate:
430 		/* Honor device capabilities. */
431 		wantmode = mode = ata_max_mode(ident_buf, mode);
432 		/* Report modes to SIM. */
433 		bzero(&cts, sizeof(cts));
434 		xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE);
435 		cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS;
436 		cts.type = CTS_TYPE_CURRENT_SETTINGS;
437 		if (path->device->transport == XPORT_ATA) {
438 			cts.xport_specific.ata.mode = mode;
439 			cts.xport_specific.ata.valid = CTS_ATA_VALID_MODE;
440 		} else {
441 			cts.xport_specific.sata.mode = mode;
442 			cts.xport_specific.sata.valid = CTS_SATA_VALID_MODE;
443 		}
444 		xpt_action((union ccb *)&cts);
445 		/* Fetch current modes from SIM. */
446 		bzero(&cts, sizeof(cts));
447 		xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE);
448 		cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
449 		cts.type = CTS_TYPE_CURRENT_SETTINGS;
450 		xpt_action((union ccb *)&cts);
451 		if (path->device->transport == XPORT_ATA) {
452 			if (cts.xport_specific.ata.valid & CTS_ATA_VALID_MODE)
453 				mode = cts.xport_specific.ata.mode;
454 		} else {
455 			if (cts.xport_specific.sata.valid & CTS_SATA_VALID_MODE)
456 				mode = cts.xport_specific.sata.mode;
457 		}
458 		/* If SIM disagree - renegotiate. */
459 		if (mode != wantmode)
460 			goto negotiate;
461 		/* Remember what transport thinks about DMA. */
462 		oif = path->device->inq_flags;
463 		if (mode < ATA_DMA)
464 			path->device->inq_flags &= ~SID_DMA;
465 		else
466 			path->device->inq_flags |= SID_DMA;
467 		if (path->device->inq_flags != oif)
468 			xpt_async(AC_GETDEV_CHANGED, path, NULL);
469 		cam_fill_ataio(ataio,
470 		      1,
471 		      aprobedone,
472 		      /*flags*/CAM_DIR_NONE,
473 		      0,
474 		      /*data_ptr*/NULL,
475 		      /*dxfer_len*/0,
476 		      30 * 1000);
477 		ata_28bit_cmd(ataio, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
478 		break;
479 	}
480 	case PROBE_SETPM:
481 		cam_fill_ataio(ataio,
482 		    1,
483 		    aprobedone,
484 		    CAM_DIR_NONE,
485 		    0,
486 		    NULL,
487 		    0,
488 		    30*1000);
489 		ata_28bit_cmd(ataio, ATA_SETFEATURES,
490 		    (softc->caps & CTS_SATA_CAPS_H_PMREQ) ? 0x10 : 0x90,
491 		    0, 0x03);
492 		break;
493 	case PROBE_SETAPST:
494 		cam_fill_ataio(ataio,
495 		    1,
496 		    aprobedone,
497 		    CAM_DIR_NONE,
498 		    0,
499 		    NULL,
500 		    0,
501 		    30*1000);
502 		ata_28bit_cmd(ataio, ATA_SETFEATURES,
503 		    (softc->caps & CTS_SATA_CAPS_H_APST) ? 0x10 : 0x90,
504 		    0, 0x07);
505 		break;
506 	case PROBE_SETDMAAA:
507 		cam_fill_ataio(ataio,
508 		    1,
509 		    aprobedone,
510 		    CAM_DIR_NONE,
511 		    0,
512 		    NULL,
513 		    0,
514 		    30*1000);
515 		ata_28bit_cmd(ataio, ATA_SETFEATURES,
516 		    (softc->caps & CTS_SATA_CAPS_H_DMAAA) ? 0x10 : 0x90,
517 		    0, 0x02);
518 		break;
519 	case PROBE_SETAN:
520 		/* Remember what transport thinks about AEN. */
521 		oif = path->device->inq_flags;
522 		if (softc->caps & CTS_SATA_CAPS_H_AN)
523 			path->device->inq_flags |= SID_AEN;
524 		else
525 			path->device->inq_flags &= ~SID_AEN;
526 		if (path->device->inq_flags != oif)
527 			xpt_async(AC_GETDEV_CHANGED, path, NULL);
528 		cam_fill_ataio(ataio,
529 		    1,
530 		    aprobedone,
531 		    CAM_DIR_NONE,
532 		    0,
533 		    NULL,
534 		    0,
535 		    30*1000);
536 		ata_28bit_cmd(ataio, ATA_SETFEATURES,
537 		    (softc->caps & CTS_SATA_CAPS_H_AN) ? 0x10 : 0x90,
538 		    0, 0x05);
539 		break;
540 	case PROBE_SET_MULTI:
541 	{
542 		u_int sectors, bytecount;
543 
544 		bytecount = 8192;	/* SATA maximum */
545 		/* Fetch user bytecount from SIM. */
546 		bzero(&cts, sizeof(cts));
547 		xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE);
548 		cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
549 		cts.type = CTS_TYPE_USER_SETTINGS;
550 		xpt_action((union ccb *)&cts);
551 		if (path->device->transport == XPORT_ATA) {
552 			if (cts.xport_specific.ata.valid & CTS_ATA_VALID_BYTECOUNT)
553 				bytecount = cts.xport_specific.ata.bytecount;
554 		} else {
555 			if (cts.xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT)
556 				bytecount = cts.xport_specific.sata.bytecount;
557 		}
558 		/* Honor device capabilities. */
559 		sectors = max(1, min(ident_buf->sectors_intr & 0xff,
560 		    bytecount / ata_logical_sector_size(ident_buf)));
561 		/* Report bytecount to SIM. */
562 		bzero(&cts, sizeof(cts));
563 		xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE);
564 		cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS;
565 		cts.type = CTS_TYPE_CURRENT_SETTINGS;
566 		if (path->device->transport == XPORT_ATA) {
567 			cts.xport_specific.ata.bytecount = sectors *
568 			    ata_logical_sector_size(ident_buf);
569 			cts.xport_specific.ata.valid = CTS_ATA_VALID_BYTECOUNT;
570 		} else {
571 			cts.xport_specific.sata.bytecount = sectors *
572 			    ata_logical_sector_size(ident_buf);
573 			cts.xport_specific.sata.valid = CTS_SATA_VALID_BYTECOUNT;
574 		}
575 		xpt_action((union ccb *)&cts);
576 		/* Fetch current bytecount from SIM. */
577 		bzero(&cts, sizeof(cts));
578 		xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE);
579 		cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
580 		cts.type = CTS_TYPE_CURRENT_SETTINGS;
581 		xpt_action((union ccb *)&cts);
582 		if (path->device->transport == XPORT_ATA) {
583 			if (cts.xport_specific.ata.valid & CTS_ATA_VALID_BYTECOUNT)
584 				bytecount = cts.xport_specific.ata.bytecount;
585 		} else {
586 			if (cts.xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT)
587 				bytecount = cts.xport_specific.sata.bytecount;
588 		}
589 		sectors = bytecount / ata_logical_sector_size(ident_buf);
590 
591 		cam_fill_ataio(ataio,
592 		    1,
593 		    aprobedone,
594 		    CAM_DIR_NONE,
595 		    0,
596 		    NULL,
597 		    0,
598 		    30*1000);
599 		ata_28bit_cmd(ataio, ATA_SET_MULTI, 0, 0, sectors);
600 		break;
601 	}
602 	case PROBE_INQUIRY:
603 	{
604 		u_int bytecount;
605 
606 		bytecount = 8192;	/* SATA maximum */
607 		/* Fetch user bytecount from SIM. */
608 		bzero(&cts, sizeof(cts));
609 		xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE);
610 		cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
611 		cts.type = CTS_TYPE_USER_SETTINGS;
612 		xpt_action((union ccb *)&cts);
613 		if (path->device->transport == XPORT_ATA) {
614 			if (cts.xport_specific.ata.valid & CTS_ATA_VALID_BYTECOUNT)
615 				bytecount = cts.xport_specific.ata.bytecount;
616 		} else {
617 			if (cts.xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT)
618 				bytecount = cts.xport_specific.sata.bytecount;
619 		}
620 		/* Honor device capabilities. */
621 		bytecount &= ~1;
622 		bytecount = max(2, min(65534, bytecount));
623 		if (ident_buf->satacapabilities != 0x0000 &&
624 		    ident_buf->satacapabilities != 0xffff) {
625 			bytecount = min(8192, bytecount);
626 		}
627 		/* Report bytecount to SIM. */
628 		bzero(&cts, sizeof(cts));
629 		xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE);
630 		cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS;
631 		cts.type = CTS_TYPE_CURRENT_SETTINGS;
632 		if (path->device->transport == XPORT_ATA) {
633 			cts.xport_specific.ata.bytecount = bytecount;
634 			cts.xport_specific.ata.valid = CTS_ATA_VALID_BYTECOUNT;
635 		} else {
636 			cts.xport_specific.sata.bytecount = bytecount;
637 			cts.xport_specific.sata.valid = CTS_SATA_VALID_BYTECOUNT;
638 		}
639 		xpt_action((union ccb *)&cts);
640 		/* FALLTHROUGH */
641 	}
642 	case PROBE_FULL_INQUIRY:
643 	{
644 		u_int inquiry_len;
645 		struct scsi_inquiry_data *inq_buf =
646 		    &path->device->inq_data;
647 
648 		if (softc->action == PROBE_INQUIRY)
649 			inquiry_len = SHORT_INQUIRY_LENGTH;
650 		else
651 			inquiry_len = SID_ADDITIONAL_LENGTH(inq_buf);
652 		/*
653 		 * Some parallel SCSI devices fail to send an
654 		 * ignore wide residue message when dealing with
655 		 * odd length inquiry requests.  Round up to be
656 		 * safe.
657 		 */
658 		inquiry_len = roundup2(inquiry_len, 2);
659 		scsi_inquiry(csio,
660 			     /*retries*/1,
661 			     aprobedone,
662 			     MSG_SIMPLE_Q_TAG,
663 			     (u_int8_t *)inq_buf,
664 			     inquiry_len,
665 			     /*evpd*/FALSE,
666 			     /*page_code*/0,
667 			     SSD_MIN_SIZE,
668 			     /*timeout*/60 * 1000);
669 		break;
670 	}
671 	case PROBE_PM_PID:
672 		cam_fill_ataio(ataio,
673 		      1,
674 		      aprobedone,
675 		      /*flags*/CAM_DIR_NONE,
676 		      0,
677 		      /*data_ptr*/NULL,
678 		      /*dxfer_len*/0,
679 		      10 * 1000);
680 		ata_pm_read_cmd(ataio, 0, 15);
681 		break;
682 	case PROBE_PM_PRV:
683 		cam_fill_ataio(ataio,
684 		      1,
685 		      aprobedone,
686 		      /*flags*/CAM_DIR_NONE,
687 		      0,
688 		      /*data_ptr*/NULL,
689 		      /*dxfer_len*/0,
690 		      10 * 1000);
691 		ata_pm_read_cmd(ataio, 1, 15);
692 		break;
693 	case PROBE_IDENTIFY_SES:
694 		cam_fill_ataio(ataio,
695 		      1,
696 		      aprobedone,
697 		      /*flags*/CAM_DIR_IN,
698 		      0,
699 		      /*data_ptr*/(u_int8_t *)&softc->ident_data,
700 		      /*dxfer_len*/sizeof(softc->ident_data),
701 		      30 * 1000);
702 		ata_28bit_cmd(ataio, ATA_SEP_ATTN, 0xEC, 0x02,
703 		    sizeof(softc->ident_data) / 4);
704 		break;
705 	case PROBE_IDENTIFY_SAFTE:
706 		cam_fill_ataio(ataio,
707 		      1,
708 		      aprobedone,
709 		      /*flags*/CAM_DIR_IN,
710 		      0,
711 		      /*data_ptr*/(u_int8_t *)&softc->ident_data,
712 		      /*dxfer_len*/sizeof(softc->ident_data),
713 		      30 * 1000);
714 		ata_28bit_cmd(ataio, ATA_SEP_ATTN, 0xEC, 0x00,
715 		    sizeof(softc->ident_data) / 4);
716 		break;
717 	default:
718 		panic("aprobestart: invalid action state 0x%x\n", softc->action);
719 	}
720 	start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
721 	xpt_action(start_ccb);
722 }
723 
724 static void
725 aproberequestdefaultnegotiation(struct cam_periph *periph)
726 {
727 	struct ccb_trans_settings cts;
728 
729 	bzero(&cts, sizeof(cts));
730 	xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE);
731 	cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
732 	cts.type = CTS_TYPE_USER_SETTINGS;
733 	xpt_action((union ccb *)&cts);
734 	if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP)
735 		return;
736 	cts.xport_specific.valid = 0;
737 	cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS;
738 	cts.type = CTS_TYPE_CURRENT_SETTINGS;
739 	xpt_action((union ccb *)&cts);
740 }
741 
742 static void
743 aprobedone(struct cam_periph *periph, union ccb *done_ccb)
744 {
745 	struct ccb_trans_settings cts;
746 	struct ata_params *ident_buf;
747 	struct scsi_inquiry_data *inq_buf;
748 	aprobe_softc *softc;
749 	struct cam_path *path;
750 	cam_status status;
751 	u_int32_t  priority;
752 	u_int caps, oif;
753 	int changed, found = 1;
754 	static const uint8_t fake_device_id_hdr[8] =
755 	    {0, SVPD_DEVICE_ID, 0, 12,
756 	     SVPD_ID_CODESET_BINARY, SVPD_ID_TYPE_NAA, 0, 8};
757 
758 	CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("aprobedone\n"));
759 
760 	softc = (aprobe_softc *)periph->softc;
761 	path = done_ccb->ccb_h.path;
762 	priority = done_ccb->ccb_h.pinfo.priority;
763 	ident_buf = &path->device->ident_data;
764 	inq_buf = &path->device->inq_data;
765 
766 	if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
767 		if (cam_periph_error(done_ccb,
768 			0, softc->restart ? (SF_NO_RECOVERY | SF_NO_RETRY) : 0
769 		    ) == ERESTART) {
770 out:
771 			/* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */
772 			cam_release_devq(path, 0, 0, 0, FALSE);
773 			return;
774 		}
775 		if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
776 			/* Don't wedge the queue */
777 			xpt_release_devq(path, /*count*/1, /*run_queue*/TRUE);
778 		}
779 		status = done_ccb->ccb_h.status & CAM_STATUS_MASK;
780 		if (softc->restart) {
781 			softc->faults++;
782 			if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) ==
783 			    CAM_CMD_TIMEOUT)
784 				softc->faults += 4;
785 			if (softc->faults < 10)
786 				goto done;
787 			else
788 				softc->restart = 0;
789 
790 		/* Old PIO2 devices may not support mode setting. */
791 		} else if (softc->action == PROBE_SETMODE &&
792 		    status == CAM_ATA_STATUS_ERROR &&
793 		    ata_max_pmode(ident_buf) <= ATA_PIO2 &&
794 		    (ident_buf->capabilities1 & ATA_SUPPORT_IORDY) == 0) {
795 			goto noerror;
796 
797 		/*
798 		 * Some old WD SATA disks report supported and enabled
799 		 * device-initiated interface power management, but return
800 		 * ABORT on attempt to disable it.
801 		 */
802 		} else if (softc->action == PROBE_SETPM &&
803 		    status == CAM_ATA_STATUS_ERROR) {
804 			goto noerror;
805 
806 		/*
807 		 * Some old WD SATA disks have broken SPINUP handling.
808 		 * If we really fail to spin up the disk, then there will be
809 		 * some media access errors later on, but at least we will
810 		 * have a device to interact with for recovery attempts.
811 		 */
812 		} else if (softc->action == PROBE_SPINUP &&
813 		    status == CAM_ATA_STATUS_ERROR) {
814 			goto noerror;
815 
816 		/*
817 		 * Some HP SATA disks report supported DMA Auto-Activation,
818 		 * but return ABORT on attempt to enable it.
819 		 */
820 		} else if (softc->action == PROBE_SETDMAAA &&
821 		    status == CAM_ATA_STATUS_ERROR) {
822 			goto noerror;
823 
824 		/*
825 		 * SES and SAF-TE SEPs have different IDENTIFY commands,
826 		 * but SATA specification doesn't tell how to identify them.
827 		 * Until better way found, just try another if first fail.
828 		 */
829 		} else if (softc->action == PROBE_IDENTIFY_SES &&
830 		    status == CAM_ATA_STATUS_ERROR) {
831 			PROBE_SET_ACTION(softc, PROBE_IDENTIFY_SAFTE);
832 			xpt_release_ccb(done_ccb);
833 			xpt_schedule(periph, priority);
834 			goto out;
835 		}
836 
837 		/*
838 		 * If we get to this point, we got an error status back
839 		 * from the inquiry and the error status doesn't require
840 		 * automatically retrying the command.  Therefore, the
841 		 * inquiry failed.  If we had inquiry information before
842 		 * for this device, but this latest inquiry command failed,
843 		 * the device has probably gone away.  If this device isn't
844 		 * already marked unconfigured, notify the peripheral
845 		 * drivers that this device is no more.
846 		 */
847 device_fail:	if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0)
848 			xpt_async(AC_LOST_DEVICE, path, NULL);
849 		PROBE_SET_ACTION(softc, PROBE_INVALID);
850 		found = 0;
851 		goto done;
852 	}
853 noerror:
854 	if (softc->restart)
855 		goto done;
856 	switch (softc->action) {
857 	case PROBE_RESET:
858 	{
859 		int sign = (done_ccb->ataio.res.lba_high << 8) +
860 		    done_ccb->ataio.res.lba_mid;
861 		CAM_DEBUG(path, CAM_DEBUG_PROBE,
862 		    ("SIGNATURE: %04x\n", sign));
863 		if (sign == 0x0000 &&
864 		    done_ccb->ccb_h.target_id != 15) {
865 			path->device->protocol = PROTO_ATA;
866 			PROBE_SET_ACTION(softc, PROBE_IDENTIFY);
867 		} else if (sign == 0x9669 &&
868 		    done_ccb->ccb_h.target_id == 15) {
869 			/* Report SIM that PM is present. */
870 			bzero(&cts, sizeof(cts));
871 			xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE);
872 			cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS;
873 			cts.type = CTS_TYPE_CURRENT_SETTINGS;
874 			cts.xport_specific.sata.pm_present = 1;
875 			cts.xport_specific.sata.valid = CTS_SATA_VALID_PM;
876 			xpt_action((union ccb *)&cts);
877 			path->device->protocol = PROTO_SATAPM;
878 			PROBE_SET_ACTION(softc, PROBE_PM_PID);
879 		} else if (sign == 0xc33c &&
880 		    done_ccb->ccb_h.target_id != 15) {
881 			path->device->protocol = PROTO_SEMB;
882 			PROBE_SET_ACTION(softc, PROBE_IDENTIFY_SES);
883 		} else if (sign == 0xeb14 &&
884 		    done_ccb->ccb_h.target_id != 15) {
885 			path->device->protocol = PROTO_SCSI;
886 			PROBE_SET_ACTION(softc, PROBE_IDENTIFY);
887 		} else {
888 			if (done_ccb->ccb_h.target_id != 15) {
889 				xpt_print(path,
890 				    "Unexpected signature 0x%04x\n", sign);
891 			}
892 			goto device_fail;
893 		}
894 		xpt_release_ccb(done_ccb);
895 		xpt_schedule(periph, priority);
896 		goto out;
897 	}
898 	case PROBE_IDENTIFY:
899 	{
900 		struct ccb_pathinq cpi;
901 		int veto = 0;
902 
903 		/*
904 		 * Convert to host byte order, and fix the strings.
905 		 */
906 		ident_buf = &softc->ident_data;
907 		ata_param_fixup(ident_buf);
908 
909 		/*
910 		 * Allow others to veto this ATA disk attachment.  This
911 		 * is mainly used by VMs, whose disk controllers may
912 		 * share the disks with the simulated ATA controllers.
913 		 */
914 		EVENTHANDLER_INVOKE(ada_probe_veto, path, ident_buf, &veto);
915 		if (veto) {
916 			goto device_fail;
917 		}
918 
919 		/* Device may need spin-up before IDENTIFY become valid. */
920 		if ((ident_buf->specconf == 0x37c8 ||
921 		     ident_buf->specconf == 0x738c) &&
922 		    ((ident_buf->config & ATA_RESP_INCOMPLETE) ||
923 		     softc->spinup == 0)) {
924 			PROBE_SET_ACTION(softc, PROBE_SPINUP);
925 			xpt_release_ccb(done_ccb);
926 			xpt_schedule(periph, priority);
927 			goto out;
928 		}
929 		ident_buf = &path->device->ident_data;
930 
931 		/* Check that it is the same device as we know. */
932 		if ((periph->path->device->flags & CAM_DEV_UNCONFIGURED) == 0) {
933 			if (bcmp(softc->ident_data.model, ident_buf->model,
934 			     sizeof(ident_buf->model)) ||
935 			    bcmp(softc->ident_data.serial, ident_buf->serial,
936 			     sizeof(ident_buf->serial))) {
937 				/* The device was replaced. */
938 				changed = 2;
939 				xpt_async(AC_LOST_DEVICE, path, NULL);
940 			} else if (bcmp(&softc->ident_data, ident_buf,
941 			     sizeof(*ident_buf))) {
942 				/* The device is the same, but has changed. */
943 				changed = 1;
944 			} else {
945 				/* Nothing has changed. */
946 				changed = 0;
947 			}
948 		} else {
949 			/* This is a new device. */
950 			changed = 2;
951 		}
952 
953 		if (changed != 0)
954 			bcopy(&softc->ident_data, ident_buf, sizeof(struct ata_params));
955 		if (changed == 2) {
956 			/* Clean up from previous instance of this device */
957 			if (path->device->serial_num != NULL) {
958 				free(path->device->serial_num, M_CAMXPT);
959 				path->device->serial_num = NULL;
960 				path->device->serial_num_len = 0;
961 			}
962 			if (path->device->device_id != NULL) {
963 				free(path->device->device_id, M_CAMXPT);
964 				path->device->device_id = NULL;
965 				path->device->device_id_len = 0;
966 			}
967 			path->device->serial_num =
968 				(u_int8_t *)malloc((sizeof(ident_buf->serial) + 1),
969 					   M_CAMXPT, M_NOWAIT);
970 			if (path->device->serial_num != NULL) {
971 				bcopy(ident_buf->serial,
972 				      path->device->serial_num,
973 				      sizeof(ident_buf->serial));
974 				path->device->serial_num[sizeof(ident_buf->serial)]
975 				    = '\0';
976 				path->device->serial_num_len =
977 				    strlen(path->device->serial_num);
978 			}
979 			if (ident_buf->enabled.extension &
980 			    ATA_SUPPORT_64BITWWN) {
981 				path->device->device_id =
982 				    malloc(16, M_CAMXPT, M_NOWAIT);
983 				if (path->device->device_id != NULL) {
984 					path->device->device_id_len = 16;
985 					bcopy(&fake_device_id_hdr,
986 					    path->device->device_id, 8);
987 					bcopy(ident_buf->wwn,
988 					    path->device->device_id + 8, 8);
989 					ata_bswap(path->device->device_id + 8, 8);
990 				}
991 			}
992 			path->device->flags |= CAM_DEV_IDENTIFY_DATA_VALID;
993 		}
994 		if (changed == 1)
995 			xpt_async(AC_GETDEV_CHANGED, path, NULL);
996 		if (ident_buf->satacapabilities & ATA_SUPPORT_NCQ) {
997 			path->device->mintags = 2;
998 			path->device->maxtags =
999 			    ATA_QUEUE_LEN(ident_buf->queue) + 1;
1000 		}
1001 		ata_find_quirk(path->device);
1002 		if (path->device->mintags != 0 &&
1003 		    path->bus->sim->max_tagged_dev_openings != 0) {
1004 			/* Check if the SIM does not want queued commands. */
1005 			xpt_path_inq(&cpi, path);
1006 			if (cpi.ccb_h.status == CAM_REQ_CMP &&
1007 			    (cpi.hba_inquiry & PI_TAG_ABLE)) {
1008 				/* Report SIM which tags are allowed. */
1009 				bzero(&cts, sizeof(cts));
1010 				xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE);
1011 				cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS;
1012 				cts.type = CTS_TYPE_CURRENT_SETTINGS;
1013 				cts.xport_specific.sata.tags = path->device->maxtags;
1014 				cts.xport_specific.sata.valid = CTS_SATA_VALID_TAGS;
1015 				xpt_action((union ccb *)&cts);
1016 			}
1017 		}
1018 		ata_device_transport(path);
1019 		if (changed == 2)
1020 			aproberequestdefaultnegotiation(periph);
1021 		PROBE_SET_ACTION(softc, PROBE_SETMODE);
1022 		xpt_release_ccb(done_ccb);
1023 		xpt_schedule(periph, priority);
1024 		goto out;
1025 	}
1026 	case PROBE_SPINUP:
1027 		if (bootverbose)
1028 			xpt_print(path, "Spin-up done\n");
1029 		softc->spinup = 1;
1030 		PROBE_SET_ACTION(softc, PROBE_IDENTIFY);
1031 		xpt_release_ccb(done_ccb);
1032 		xpt_schedule(periph, priority);
1033 		goto out;
1034 	case PROBE_SETMODE:
1035 		/* Set supported bits. */
1036 		bzero(&cts, sizeof(cts));
1037 		xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE);
1038 		cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1039 		cts.type = CTS_TYPE_CURRENT_SETTINGS;
1040 		xpt_action((union ccb *)&cts);
1041 		if (path->device->transport == XPORT_SATA &&
1042 		    cts.xport_specific.sata.valid & CTS_SATA_VALID_CAPS)
1043 			caps = cts.xport_specific.sata.caps & CTS_SATA_CAPS_H;
1044 		else if (path->device->transport == XPORT_ATA &&
1045 		    cts.xport_specific.ata.valid & CTS_ATA_VALID_CAPS)
1046 			caps = cts.xport_specific.ata.caps & CTS_ATA_CAPS_H;
1047 		else
1048 			caps = 0;
1049 		if (path->device->transport == XPORT_SATA &&
1050 		    ident_buf->satacapabilities != 0xffff) {
1051 			if (ident_buf->satacapabilities & ATA_SUPPORT_IFPWRMNGTRCV)
1052 				caps |= CTS_SATA_CAPS_D_PMREQ;
1053 			if (ident_buf->satacapabilities & ATA_SUPPORT_HAPST)
1054 				caps |= CTS_SATA_CAPS_D_APST;
1055 		}
1056 		/* Mask unwanted bits. */
1057 		bzero(&cts, sizeof(cts));
1058 		xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE);
1059 		cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1060 		cts.type = CTS_TYPE_USER_SETTINGS;
1061 		xpt_action((union ccb *)&cts);
1062 		if (path->device->transport == XPORT_SATA &&
1063 		    cts.xport_specific.sata.valid & CTS_SATA_VALID_CAPS)
1064 			caps &= cts.xport_specific.sata.caps;
1065 		else if (path->device->transport == XPORT_ATA &&
1066 		    cts.xport_specific.ata.valid & CTS_ATA_VALID_CAPS)
1067 			caps &= cts.xport_specific.ata.caps;
1068 		else
1069 			caps = 0;
1070 		/*
1071 		 * Remember what transport thinks about 48-bit DMA.  If
1072 		 * capability information is not provided or transport is
1073 		 * SATA, we take support for granted.
1074 		 */
1075 		oif = path->device->inq_flags;
1076 		if (!(path->device->inq_flags & SID_DMA) ||
1077 		    (path->device->transport == XPORT_ATA &&
1078 		    (cts.xport_specific.ata.valid & CTS_ATA_VALID_CAPS) &&
1079 		    !(caps & CTS_ATA_CAPS_H_DMA48)))
1080 			path->device->inq_flags &= ~SID_DMA48;
1081 		else
1082 			path->device->inq_flags |= SID_DMA48;
1083 		if (path->device->inq_flags != oif)
1084 			xpt_async(AC_GETDEV_CHANGED, path, NULL);
1085 		/* Store result to SIM. */
1086 		bzero(&cts, sizeof(cts));
1087 		xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE);
1088 		cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS;
1089 		cts.type = CTS_TYPE_CURRENT_SETTINGS;
1090 		if (path->device->transport == XPORT_SATA) {
1091 			cts.xport_specific.sata.caps = caps;
1092 			cts.xport_specific.sata.valid = CTS_SATA_VALID_CAPS;
1093 		} else {
1094 			cts.xport_specific.ata.caps = caps;
1095 			cts.xport_specific.ata.valid = CTS_ATA_VALID_CAPS;
1096 		}
1097 		xpt_action((union ccb *)&cts);
1098 		softc->caps = caps;
1099 		if (path->device->transport != XPORT_SATA)
1100 			goto notsata;
1101 		if ((ident_buf->satasupport & ATA_SUPPORT_IFPWRMNGT) &&
1102 		    (!(softc->caps & CTS_SATA_CAPS_H_PMREQ)) !=
1103 		    (!(ident_buf->sataenabled & ATA_SUPPORT_IFPWRMNGT))) {
1104 			PROBE_SET_ACTION(softc, PROBE_SETPM);
1105 			xpt_release_ccb(done_ccb);
1106 			xpt_schedule(periph, priority);
1107 			goto out;
1108 		}
1109 		/* FALLTHROUGH */
1110 	case PROBE_SETPM:
1111 		if (ident_buf->satacapabilities != 0xffff &&
1112 		    (ident_buf->satacapabilities & ATA_SUPPORT_DAPST) &&
1113 		    (!(softc->caps & CTS_SATA_CAPS_H_APST)) !=
1114 		    (!(ident_buf->sataenabled & ATA_ENABLED_DAPST))) {
1115 			PROBE_SET_ACTION(softc, PROBE_SETAPST);
1116 			xpt_release_ccb(done_ccb);
1117 			xpt_schedule(periph, priority);
1118 			goto out;
1119 		}
1120 		/* FALLTHROUGH */
1121 	case PROBE_SETAPST:
1122 		if ((ident_buf->satasupport & ATA_SUPPORT_AUTOACTIVATE) &&
1123 		    (!(softc->caps & CTS_SATA_CAPS_H_DMAAA)) !=
1124 		    (!(ident_buf->sataenabled & ATA_SUPPORT_AUTOACTIVATE))) {
1125 			PROBE_SET_ACTION(softc, PROBE_SETDMAAA);
1126 			xpt_release_ccb(done_ccb);
1127 			xpt_schedule(periph, priority);
1128 			goto out;
1129 		}
1130 		/* FALLTHROUGH */
1131 	case PROBE_SETDMAAA:
1132 		if (path->device->protocol != PROTO_ATA &&
1133 		    (ident_buf->satasupport & ATA_SUPPORT_ASYNCNOTIF) &&
1134 		    (!(softc->caps & CTS_SATA_CAPS_H_AN)) !=
1135 		    (!(ident_buf->sataenabled & ATA_SUPPORT_ASYNCNOTIF))) {
1136 			PROBE_SET_ACTION(softc, PROBE_SETAN);
1137 			xpt_release_ccb(done_ccb);
1138 			xpt_schedule(periph, priority);
1139 			goto out;
1140 		}
1141 		/* FALLTHROUGH */
1142 	case PROBE_SETAN:
1143 notsata:
1144 		if (path->device->protocol == PROTO_ATA) {
1145 			PROBE_SET_ACTION(softc, PROBE_SET_MULTI);
1146 		} else {
1147 			PROBE_SET_ACTION(softc, PROBE_INQUIRY);
1148 		}
1149 		xpt_release_ccb(done_ccb);
1150 		xpt_schedule(periph, priority);
1151 		goto out;
1152 	case PROBE_SET_MULTI:
1153 		if (periph->path->device->flags & CAM_DEV_UNCONFIGURED) {
1154 			path->device->flags &= ~CAM_DEV_UNCONFIGURED;
1155 			xpt_acquire_device(path->device);
1156 			done_ccb->ccb_h.func_code = XPT_GDEV_TYPE;
1157 			xpt_action(done_ccb);
1158 			xpt_async(AC_FOUND_DEVICE, path, done_ccb);
1159 		}
1160 		PROBE_SET_ACTION(softc, PROBE_DONE);
1161 		break;
1162 	case PROBE_INQUIRY:
1163 	case PROBE_FULL_INQUIRY:
1164 	{
1165 		u_int8_t periph_qual, len;
1166 
1167 		path->device->flags |= CAM_DEV_INQUIRY_DATA_VALID;
1168 
1169 		periph_qual = SID_QUAL(inq_buf);
1170 
1171 		if (periph_qual != SID_QUAL_LU_CONNECTED &&
1172 		    periph_qual != SID_QUAL_LU_OFFLINE)
1173 			break;
1174 
1175 		/*
1176 		 * We conservatively request only
1177 		 * SHORT_INQUIRY_LEN bytes of inquiry
1178 		 * information during our first try
1179 		 * at sending an INQUIRY. If the device
1180 		 * has more information to give,
1181 		 * perform a second request specifying
1182 		 * the amount of information the device
1183 		 * is willing to give.
1184 		 */
1185 		len = inq_buf->additional_length
1186 		    + offsetof(struct scsi_inquiry_data, additional_length) + 1;
1187 		if (softc->action == PROBE_INQUIRY
1188 		    && len > SHORT_INQUIRY_LENGTH) {
1189 			PROBE_SET_ACTION(softc, PROBE_FULL_INQUIRY);
1190 			xpt_release_ccb(done_ccb);
1191 			xpt_schedule(periph, priority);
1192 			goto out;
1193 		}
1194 
1195 		ata_device_transport(path);
1196 		if (periph->path->device->flags & CAM_DEV_UNCONFIGURED) {
1197 			path->device->flags &= ~CAM_DEV_UNCONFIGURED;
1198 			xpt_acquire_device(path->device);
1199 			done_ccb->ccb_h.func_code = XPT_GDEV_TYPE;
1200 			xpt_action(done_ccb);
1201 			xpt_async(AC_FOUND_DEVICE, path, done_ccb);
1202 		}
1203 		PROBE_SET_ACTION(softc, PROBE_DONE);
1204 		break;
1205 	}
1206 	case PROBE_PM_PID:
1207 		if ((path->device->flags & CAM_DEV_IDENTIFY_DATA_VALID) == 0)
1208 			bzero(ident_buf, sizeof(*ident_buf));
1209 		softc->pm_pid = (done_ccb->ataio.res.lba_high << 24) +
1210 		    (done_ccb->ataio.res.lba_mid << 16) +
1211 		    (done_ccb->ataio.res.lba_low << 8) +
1212 		    done_ccb->ataio.res.sector_count;
1213 		((uint32_t *)ident_buf)[0] = softc->pm_pid;
1214 		snprintf(ident_buf->model, sizeof(ident_buf->model),
1215 		    "Port Multiplier %08x", softc->pm_pid);
1216 		PROBE_SET_ACTION(softc, PROBE_PM_PRV);
1217 		xpt_release_ccb(done_ccb);
1218 		xpt_schedule(periph, priority);
1219 		goto out;
1220 	case PROBE_PM_PRV:
1221 		softc->pm_prv = (done_ccb->ataio.res.lba_high << 24) +
1222 		    (done_ccb->ataio.res.lba_mid << 16) +
1223 		    (done_ccb->ataio.res.lba_low << 8) +
1224 		    done_ccb->ataio.res.sector_count;
1225 		((uint32_t *)ident_buf)[1] = softc->pm_prv;
1226 		snprintf(ident_buf->revision, sizeof(ident_buf->revision),
1227 		    "%04x", softc->pm_prv);
1228 		path->device->flags |= CAM_DEV_IDENTIFY_DATA_VALID;
1229 		ata_device_transport(path);
1230 		if (periph->path->device->flags & CAM_DEV_UNCONFIGURED)
1231 			aproberequestdefaultnegotiation(periph);
1232 		/* Set supported bits. */
1233 		bzero(&cts, sizeof(cts));
1234 		xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE);
1235 		cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1236 		cts.type = CTS_TYPE_CURRENT_SETTINGS;
1237 		xpt_action((union ccb *)&cts);
1238 		if (cts.xport_specific.sata.valid & CTS_SATA_VALID_CAPS)
1239 			caps = cts.xport_specific.sata.caps & CTS_SATA_CAPS_H;
1240 		else
1241 			caps = 0;
1242 		/* All PMPs must support PM requests. */
1243 		caps |= CTS_SATA_CAPS_D_PMREQ;
1244 		/* Mask unwanted bits. */
1245 		bzero(&cts, sizeof(cts));
1246 		xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE);
1247 		cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1248 		cts.type = CTS_TYPE_USER_SETTINGS;
1249 		xpt_action((union ccb *)&cts);
1250 		if (cts.xport_specific.sata.valid & CTS_SATA_VALID_CAPS)
1251 			caps &= cts.xport_specific.sata.caps;
1252 		else
1253 			caps = 0;
1254 		/* Remember what transport thinks about AEN. */
1255 		oif = path->device->inq_flags;
1256 		if ((caps & CTS_SATA_CAPS_H_AN) && path->device->protocol != PROTO_ATA)
1257 			path->device->inq_flags |= SID_AEN;
1258 		else
1259 			path->device->inq_flags &= ~SID_AEN;
1260 		/* Store result to SIM. */
1261 		bzero(&cts, sizeof(cts));
1262 		xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE);
1263 		cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS;
1264 		cts.type = CTS_TYPE_CURRENT_SETTINGS;
1265 		cts.xport_specific.sata.caps = caps;
1266 		cts.xport_specific.sata.valid = CTS_SATA_VALID_CAPS;
1267 		xpt_action((union ccb *)&cts);
1268 		softc->caps = caps;
1269 		if (periph->path->device->flags & CAM_DEV_UNCONFIGURED) {
1270 			path->device->flags &= ~CAM_DEV_UNCONFIGURED;
1271 			xpt_acquire_device(path->device);
1272 			done_ccb->ccb_h.func_code = XPT_GDEV_TYPE;
1273 			xpt_action(done_ccb);
1274 			xpt_async(AC_FOUND_DEVICE, path, done_ccb);
1275 		} else {
1276 			if (path->device->inq_flags != oif)
1277 				xpt_async(AC_GETDEV_CHANGED, path, NULL);
1278 			done_ccb->ccb_h.func_code = XPT_GDEV_TYPE;
1279 			xpt_action(done_ccb);
1280 			xpt_async(AC_SCSI_AEN, path, done_ccb);
1281 		}
1282 		PROBE_SET_ACTION(softc, PROBE_DONE);
1283 		break;
1284 	case PROBE_IDENTIFY_SES:
1285 	case PROBE_IDENTIFY_SAFTE:
1286 		if ((periph->path->device->flags & CAM_DEV_UNCONFIGURED) == 0) {
1287 			/* Check that it is the same device. */
1288 			if (bcmp(&softc->ident_data, ident_buf, 53)) {
1289 				/* Device changed. */
1290 				changed = 2;
1291 				xpt_async(AC_LOST_DEVICE, path, NULL);
1292 			} else {
1293 				bcopy(&softc->ident_data, ident_buf, sizeof(struct ata_params));
1294 				changed = 0;
1295 			}
1296 		} else
1297 			changed = 2;
1298 		if (changed) {
1299 			bcopy(&softc->ident_data, ident_buf, sizeof(struct ata_params));
1300 			/* Clean up from previous instance of this device */
1301 			if (path->device->device_id != NULL) {
1302 				free(path->device->device_id, M_CAMXPT);
1303 				path->device->device_id = NULL;
1304 				path->device->device_id_len = 0;
1305 			}
1306 			path->device->device_id =
1307 			    malloc(16, M_CAMXPT, M_NOWAIT);
1308 			if (path->device->device_id != NULL) {
1309 				path->device->device_id_len = 16;
1310 				bcopy(&fake_device_id_hdr,
1311 				    path->device->device_id, 8);
1312 				bcopy(((uint8_t*)ident_buf) + 2,
1313 				    path->device->device_id + 8, 8);
1314 			}
1315 
1316 			path->device->flags |= CAM_DEV_IDENTIFY_DATA_VALID;
1317 		}
1318 		ata_device_transport(path);
1319 		if (changed)
1320 			aproberequestdefaultnegotiation(periph);
1321 
1322 		if (periph->path->device->flags & CAM_DEV_UNCONFIGURED) {
1323 			path->device->flags &= ~CAM_DEV_UNCONFIGURED;
1324 			xpt_acquire_device(path->device);
1325 			done_ccb->ccb_h.func_code = XPT_GDEV_TYPE;
1326 			xpt_action(done_ccb);
1327 			xpt_async(AC_FOUND_DEVICE, path, done_ccb);
1328 		}
1329 		PROBE_SET_ACTION(softc, PROBE_DONE);
1330 		break;
1331 	default:
1332 		panic("aprobedone: invalid action state 0x%x\n", softc->action);
1333 	}
1334 done:
1335 	if (softc->restart) {
1336 		softc->restart = 0;
1337 		xpt_release_ccb(done_ccb);
1338 		aprobeschedule(periph);
1339 		goto out;
1340 	}
1341 	xpt_release_ccb(done_ccb);
1342 	CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe completed\n"));
1343 	while ((done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs))) {
1344 		TAILQ_REMOVE(&softc->request_ccbs,
1345 		    &done_ccb->ccb_h, periph_links.tqe);
1346 		done_ccb->ccb_h.status = found ? CAM_REQ_CMP : CAM_REQ_CMP_ERR;
1347 		xpt_done(done_ccb);
1348 	}
1349 	/* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */
1350 	cam_release_devq(path, 0, 0, 0, FALSE);
1351 	cam_periph_invalidate(periph);
1352 	cam_periph_release_locked(periph);
1353 }
1354 
1355 static void
1356 aprobecleanup(struct cam_periph *periph)
1357 {
1358 	free(periph->softc, M_CAMXPT);
1359 }
1360 
1361 static void
1362 ata_find_quirk(struct cam_ed *device)
1363 {
1364 	struct ata_quirk_entry *quirk;
1365 	caddr_t	match;
1366 
1367 	match = cam_quirkmatch((caddr_t)&device->ident_data,
1368 			       (caddr_t)ata_quirk_table,
1369 			       nitems(ata_quirk_table),
1370 			       sizeof(*ata_quirk_table), ata_identify_match);
1371 
1372 	if (match == NULL)
1373 		panic("xpt_find_quirk: device didn't match wildcard entry!!");
1374 
1375 	quirk = (struct ata_quirk_entry *)match;
1376 	device->quirk = quirk;
1377 	if (quirk->quirks & CAM_QUIRK_MAXTAGS) {
1378 		device->mintags = quirk->mintags;
1379 		device->maxtags = quirk->maxtags;
1380 	}
1381 }
1382 
1383 typedef struct {
1384 	union	ccb *request_ccb;
1385 	struct 	ccb_pathinq *cpi;
1386 	int	counter;
1387 } ata_scan_bus_info;
1388 
1389 /*
1390  * To start a scan, request_ccb is an XPT_SCAN_BUS ccb.
1391  * As the scan progresses, xpt_scan_bus is used as the
1392  * callback on completion function.
1393  */
1394 static void
1395 ata_scan_bus(struct cam_periph *periph, union ccb *request_ccb)
1396 {
1397 	struct	cam_path *path;
1398 	ata_scan_bus_info *scan_info;
1399 	union	ccb *work_ccb, *reset_ccb;
1400 	struct mtx *mtx;
1401 	cam_status status;
1402 
1403 	CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE,
1404 		  ("xpt_scan_bus\n"));
1405 	switch (request_ccb->ccb_h.func_code) {
1406 	case XPT_SCAN_BUS:
1407 	case XPT_SCAN_TGT:
1408 		/* Find out the characteristics of the bus */
1409 		work_ccb = xpt_alloc_ccb_nowait();
1410 		if (work_ccb == NULL) {
1411 			request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
1412 			xpt_done(request_ccb);
1413 			return;
1414 		}
1415 		xpt_path_inq(&work_ccb->cpi, request_ccb->ccb_h.path);
1416 		if (work_ccb->ccb_h.status != CAM_REQ_CMP) {
1417 			request_ccb->ccb_h.status = work_ccb->ccb_h.status;
1418 			xpt_free_ccb(work_ccb);
1419 			xpt_done(request_ccb);
1420 			return;
1421 		}
1422 
1423 		/* We may need to reset bus first, if we haven't done it yet. */
1424 		if ((work_ccb->cpi.hba_inquiry &
1425 		    (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) &&
1426 		    !(work_ccb->cpi.hba_misc & PIM_NOBUSRESET) &&
1427 		    !timevalisset(&request_ccb->ccb_h.path->bus->last_reset)) {
1428 			reset_ccb = xpt_alloc_ccb_nowait();
1429 			if (reset_ccb == NULL) {
1430 				request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
1431 				xpt_free_ccb(work_ccb);
1432 				xpt_done(request_ccb);
1433 				return;
1434 			}
1435 			xpt_setup_ccb(&reset_ccb->ccb_h, request_ccb->ccb_h.path,
1436 			      CAM_PRIORITY_NONE);
1437 			reset_ccb->ccb_h.func_code = XPT_RESET_BUS;
1438 			xpt_action(reset_ccb);
1439 			if (reset_ccb->ccb_h.status != CAM_REQ_CMP) {
1440 				request_ccb->ccb_h.status = reset_ccb->ccb_h.status;
1441 				xpt_free_ccb(reset_ccb);
1442 				xpt_free_ccb(work_ccb);
1443 				xpt_done(request_ccb);
1444 				return;
1445 			}
1446 			xpt_free_ccb(reset_ccb);
1447 		}
1448 
1449 		/* Save some state for use while we probe for devices */
1450 		scan_info = (ata_scan_bus_info *)
1451 		    malloc(sizeof(ata_scan_bus_info), M_CAMXPT, M_NOWAIT);
1452 		if (scan_info == NULL) {
1453 			request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
1454 			xpt_free_ccb(work_ccb);
1455 			xpt_done(request_ccb);
1456 			return;
1457 		}
1458 		scan_info->request_ccb = request_ccb;
1459 		scan_info->cpi = &work_ccb->cpi;
1460 		/* If PM supported, probe it first. */
1461 		if (scan_info->cpi->hba_inquiry & PI_SATAPM)
1462 			scan_info->counter = scan_info->cpi->max_target;
1463 		else
1464 			scan_info->counter = 0;
1465 
1466 		work_ccb = xpt_alloc_ccb_nowait();
1467 		if (work_ccb == NULL) {
1468 			free(scan_info, M_CAMXPT);
1469 			request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
1470 			xpt_done(request_ccb);
1471 			break;
1472 		}
1473 		mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path);
1474 		goto scan_next;
1475 	case XPT_SCAN_LUN:
1476 		work_ccb = request_ccb;
1477 		/* Reuse the same CCB to query if a device was really found */
1478 		scan_info = (ata_scan_bus_info *)work_ccb->ccb_h.ppriv_ptr0;
1479 		mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path);
1480 		mtx_lock(mtx);
1481 		/* If there is PMP... */
1482 		if ((scan_info->cpi->hba_inquiry & PI_SATAPM) &&
1483 		    (scan_info->counter == scan_info->cpi->max_target)) {
1484 			if (work_ccb->ccb_h.status == CAM_REQ_CMP) {
1485 				/* everything else will be probed by it */
1486 				/* Free the current request path- we're done with it. */
1487 				xpt_free_path(work_ccb->ccb_h.path);
1488 				goto done;
1489 			} else {
1490 				struct ccb_trans_settings cts;
1491 
1492 				/* Report SIM that PM is absent. */
1493 				bzero(&cts, sizeof(cts));
1494 				xpt_setup_ccb(&cts.ccb_h,
1495 				    work_ccb->ccb_h.path, CAM_PRIORITY_NONE);
1496 				cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS;
1497 				cts.type = CTS_TYPE_CURRENT_SETTINGS;
1498 				cts.xport_specific.sata.pm_present = 0;
1499 				cts.xport_specific.sata.valid = CTS_SATA_VALID_PM;
1500 				xpt_action((union ccb *)&cts);
1501 			}
1502 		}
1503 		/* Free the current request path- we're done with it. */
1504 		xpt_free_path(work_ccb->ccb_h.path);
1505 		if (scan_info->counter ==
1506 		    ((scan_info->cpi->hba_inquiry & PI_SATAPM) ?
1507 		    0 : scan_info->cpi->max_target)) {
1508 done:
1509 			mtx_unlock(mtx);
1510 			xpt_free_ccb(work_ccb);
1511 			xpt_free_ccb((union ccb *)scan_info->cpi);
1512 			request_ccb = scan_info->request_ccb;
1513 			free(scan_info, M_CAMXPT);
1514 			request_ccb->ccb_h.status = CAM_REQ_CMP;
1515 			xpt_done(request_ccb);
1516 			break;
1517 		}
1518 		/* Take next device. Wrap from max (PMP) to 0. */
1519 		scan_info->counter = (scan_info->counter + 1 ) %
1520 		    (scan_info->cpi->max_target + 1);
1521 scan_next:
1522 		status = xpt_create_path(&path, NULL,
1523 		    scan_info->request_ccb->ccb_h.path_id,
1524 		    scan_info->counter, 0);
1525 		if (status != CAM_REQ_CMP) {
1526 			if (request_ccb->ccb_h.func_code == XPT_SCAN_LUN)
1527 				mtx_unlock(mtx);
1528 			printf("xpt_scan_bus: xpt_create_path failed"
1529 			    " with status %#x, bus scan halted\n",
1530 			    status);
1531 			xpt_free_ccb(work_ccb);
1532 			xpt_free_ccb((union ccb *)scan_info->cpi);
1533 			request_ccb = scan_info->request_ccb;
1534 			free(scan_info, M_CAMXPT);
1535 			request_ccb->ccb_h.status = status;
1536 			xpt_done(request_ccb);
1537 			break;
1538 		}
1539 		xpt_setup_ccb(&work_ccb->ccb_h, path,
1540 		    scan_info->request_ccb->ccb_h.pinfo.priority);
1541 		work_ccb->ccb_h.func_code = XPT_SCAN_LUN;
1542 		work_ccb->ccb_h.cbfcnp = ata_scan_bus;
1543 		work_ccb->ccb_h.flags |= CAM_UNLOCKED;
1544 		work_ccb->ccb_h.ppriv_ptr0 = scan_info;
1545 		work_ccb->crcn.flags = scan_info->request_ccb->crcn.flags;
1546 		mtx_unlock(mtx);
1547 		if (request_ccb->ccb_h.func_code == XPT_SCAN_LUN)
1548 			mtx = NULL;
1549 		xpt_action(work_ccb);
1550 		if (mtx != NULL)
1551 			mtx_lock(mtx);
1552 		break;
1553 	default:
1554 		break;
1555 	}
1556 }
1557 
1558 static void
1559 ata_scan_lun(struct cam_periph *periph, struct cam_path *path,
1560 	     cam_flags flags, union ccb *request_ccb)
1561 {
1562 	struct ccb_pathinq cpi;
1563 	cam_status status;
1564 	struct cam_path *new_path;
1565 	struct cam_periph *old_periph;
1566 	int lock;
1567 
1568 	CAM_DEBUG(path, CAM_DEBUG_TRACE, ("xpt_scan_lun\n"));
1569 
1570 	xpt_path_inq(&cpi, path);
1571 	if (cpi.ccb_h.status != CAM_REQ_CMP) {
1572 		if (request_ccb != NULL) {
1573 			request_ccb->ccb_h.status = cpi.ccb_h.status;
1574 			xpt_done(request_ccb);
1575 		}
1576 		return;
1577 	}
1578 
1579 	if (request_ccb == NULL) {
1580 		request_ccb = xpt_alloc_ccb_nowait();
1581 		if (request_ccb == NULL) {
1582 			xpt_print(path, "xpt_scan_lun: can't allocate CCB, "
1583 			    "can't continue\n");
1584 			return;
1585 		}
1586 		status = xpt_create_path(&new_path, NULL,
1587 					  path->bus->path_id,
1588 					  path->target->target_id,
1589 					  path->device->lun_id);
1590 		if (status != CAM_REQ_CMP) {
1591 			xpt_print(path, "xpt_scan_lun: can't create path, "
1592 			    "can't continue\n");
1593 			xpt_free_ccb(request_ccb);
1594 			return;
1595 		}
1596 		xpt_setup_ccb(&request_ccb->ccb_h, new_path, CAM_PRIORITY_XPT);
1597 		request_ccb->ccb_h.cbfcnp = axptscandone;
1598 		request_ccb->ccb_h.flags |= CAM_UNLOCKED;
1599 		request_ccb->ccb_h.func_code = XPT_SCAN_LUN;
1600 		request_ccb->crcn.flags = flags;
1601 	}
1602 
1603 	lock = (xpt_path_owned(path) == 0);
1604 	if (lock)
1605 		xpt_path_lock(path);
1606 	if ((old_periph = cam_periph_find(path, "aprobe")) != NULL) {
1607 		if ((old_periph->flags & CAM_PERIPH_INVALID) == 0) {
1608 			aprobe_softc *softc;
1609 
1610 			softc = (aprobe_softc *)old_periph->softc;
1611 			TAILQ_INSERT_TAIL(&softc->request_ccbs,
1612 				&request_ccb->ccb_h, periph_links.tqe);
1613 			softc->restart = 1;
1614 		} else {
1615 			request_ccb->ccb_h.status = CAM_REQ_CMP_ERR;
1616 			xpt_done(request_ccb);
1617 		}
1618 	} else {
1619 		status = cam_periph_alloc(aproberegister, NULL, aprobecleanup,
1620 					  aprobestart, "aprobe",
1621 					  CAM_PERIPH_BIO,
1622 					  request_ccb->ccb_h.path, NULL, 0,
1623 					  request_ccb);
1624 
1625 		if (status != CAM_REQ_CMP) {
1626 			xpt_print(path, "xpt_scan_lun: cam_alloc_periph "
1627 			    "returned an error, can't continue probe\n");
1628 			request_ccb->ccb_h.status = status;
1629 			xpt_done(request_ccb);
1630 		}
1631 	}
1632 	if (lock)
1633 		xpt_path_unlock(path);
1634 }
1635 
1636 static void
1637 axptscandone(struct cam_periph *periph, union ccb *done_ccb)
1638 {
1639 
1640 	xpt_free_path(done_ccb->ccb_h.path);
1641 	xpt_free_ccb(done_ccb);
1642 }
1643 
1644 static struct cam_ed *
1645 ata_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id)
1646 {
1647 	struct ata_quirk_entry *quirk;
1648 	struct cam_ed *device;
1649 
1650 	device = xpt_alloc_device(bus, target, lun_id);
1651 	if (device == NULL)
1652 		return (NULL);
1653 
1654 	/*
1655 	 * Take the default quirk entry until we have inquiry
1656 	 * data and can determine a better quirk to use.
1657 	 */
1658 	quirk = &ata_quirk_table[nitems(ata_quirk_table) - 1];
1659 	device->quirk = (void *)quirk;
1660 	device->mintags = 0;
1661 	device->maxtags = 0;
1662 	bzero(&device->inq_data, sizeof(device->inq_data));
1663 	device->inq_flags = 0;
1664 	device->queue_flags = 0;
1665 	device->serial_num = NULL;
1666 	device->serial_num_len = 0;
1667 	return (device);
1668 }
1669 
1670 static void
1671 ata_device_transport(struct cam_path *path)
1672 {
1673 	struct ccb_pathinq cpi;
1674 	struct ccb_trans_settings cts;
1675 	struct scsi_inquiry_data *inq_buf = NULL;
1676 	struct ata_params *ident_buf = NULL;
1677 
1678 	/* Get transport information from the SIM */
1679 	xpt_path_inq(&cpi, path);
1680 
1681 	path->device->transport = cpi.transport;
1682 	if ((path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0)
1683 		inq_buf = &path->device->inq_data;
1684 	if ((path->device->flags & CAM_DEV_IDENTIFY_DATA_VALID) != 0)
1685 		ident_buf = &path->device->ident_data;
1686 	if (path->device->protocol == PROTO_ATA) {
1687 		path->device->protocol_version = ident_buf ?
1688 		    ata_version(ident_buf->version_major) : cpi.protocol_version;
1689 	} else if (path->device->protocol == PROTO_SCSI) {
1690 		path->device->protocol_version = inq_buf ?
1691 		    SID_ANSI_REV(inq_buf) : cpi.protocol_version;
1692 	}
1693 	path->device->transport_version = ident_buf ?
1694 	    ata_version(ident_buf->version_major) : cpi.transport_version;
1695 
1696 	/* Tell the controller what we think */
1697 	bzero(&cts, sizeof(cts));
1698 	xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE);
1699 	cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS;
1700 	cts.type = CTS_TYPE_CURRENT_SETTINGS;
1701 	cts.transport = path->device->transport;
1702 	cts.transport_version = path->device->transport_version;
1703 	cts.protocol = path->device->protocol;
1704 	cts.protocol_version = path->device->protocol_version;
1705 	cts.proto_specific.valid = 0;
1706 	if (ident_buf) {
1707 		if (path->device->transport == XPORT_ATA) {
1708 			cts.xport_specific.ata.atapi =
1709 			    (ident_buf->config == ATA_PROTO_CFA) ? 0 :
1710 			    ((ident_buf->config & ATA_PROTO_MASK) == ATA_PROTO_ATAPI_16) ? 16 :
1711 			    ((ident_buf->config & ATA_PROTO_MASK) == ATA_PROTO_ATAPI_12) ? 12 : 0;
1712 			cts.xport_specific.ata.valid = CTS_ATA_VALID_ATAPI;
1713 		} else {
1714 			cts.xport_specific.sata.atapi =
1715 			    (ident_buf->config == ATA_PROTO_CFA) ? 0 :
1716 			    ((ident_buf->config & ATA_PROTO_MASK) == ATA_PROTO_ATAPI_16) ? 16 :
1717 			    ((ident_buf->config & ATA_PROTO_MASK) == ATA_PROTO_ATAPI_12) ? 12 : 0;
1718 			cts.xport_specific.sata.valid = CTS_SATA_VALID_ATAPI;
1719 		}
1720 	} else
1721 		cts.xport_specific.valid = 0;
1722 	xpt_action((union ccb *)&cts);
1723 }
1724 
1725 static void
1726 ata_dev_advinfo(union ccb *start_ccb)
1727 {
1728 	struct cam_ed *device;
1729 	struct ccb_dev_advinfo *cdai;
1730 	off_t amt;
1731 
1732 	xpt_path_assert(start_ccb->ccb_h.path, MA_OWNED);
1733 	start_ccb->ccb_h.status = CAM_REQ_INVALID;
1734 	device = start_ccb->ccb_h.path->device;
1735 	cdai = &start_ccb->cdai;
1736 	switch(cdai->buftype) {
1737 	case CDAI_TYPE_SCSI_DEVID:
1738 		if (cdai->flags & CDAI_FLAG_STORE)
1739 			return;
1740 		cdai->provsiz = device->device_id_len;
1741 		if (device->device_id_len == 0)
1742 			break;
1743 		amt = device->device_id_len;
1744 		if (cdai->provsiz > cdai->bufsiz)
1745 			amt = cdai->bufsiz;
1746 		memcpy(cdai->buf, device->device_id, amt);
1747 		break;
1748 	case CDAI_TYPE_SERIAL_NUM:
1749 		if (cdai->flags & CDAI_FLAG_STORE)
1750 			return;
1751 		cdai->provsiz = device->serial_num_len;
1752 		if (device->serial_num_len == 0)
1753 			break;
1754 		amt = device->serial_num_len;
1755 		if (cdai->provsiz > cdai->bufsiz)
1756 			amt = cdai->bufsiz;
1757 		memcpy(cdai->buf, device->serial_num, amt);
1758 		break;
1759 	case CDAI_TYPE_PHYS_PATH:
1760 		if (cdai->flags & CDAI_FLAG_STORE) {
1761 			if (device->physpath != NULL) {
1762 				free(device->physpath, M_CAMXPT);
1763 				device->physpath = NULL;
1764 				device->physpath_len = 0;
1765 			}
1766 			/* Clear existing buffer if zero length */
1767 			if (cdai->bufsiz == 0)
1768 				break;
1769 			device->physpath = malloc(cdai->bufsiz, M_CAMXPT, M_NOWAIT);
1770 			if (device->physpath == NULL) {
1771 				start_ccb->ccb_h.status = CAM_REQ_ABORTED;
1772 				return;
1773 			}
1774 			device->physpath_len = cdai->bufsiz;
1775 			memcpy(device->physpath, cdai->buf, cdai->bufsiz);
1776 		} else {
1777 			cdai->provsiz = device->physpath_len;
1778 			if (device->physpath_len == 0)
1779 				break;
1780 			amt = device->physpath_len;
1781 			if (cdai->provsiz > cdai->bufsiz)
1782 				amt = cdai->bufsiz;
1783 			memcpy(cdai->buf, device->physpath, amt);
1784 		}
1785 		break;
1786 	default:
1787 		return;
1788 	}
1789 	start_ccb->ccb_h.status = CAM_REQ_CMP;
1790 
1791 	if (cdai->flags & CDAI_FLAG_STORE) {
1792 		xpt_async(AC_ADVINFO_CHANGED, start_ccb->ccb_h.path,
1793 			  (void *)(uintptr_t)cdai->buftype);
1794 	}
1795 }
1796 
1797 static void
1798 ata_action(union ccb *start_ccb)
1799 {
1800 
1801 	if (start_ccb->ccb_h.func_code != XPT_ATA_IO) {
1802 		KASSERT((start_ccb->ccb_h.alloc_flags & CAM_CCB_FROM_UMA) == 0,
1803 		    ("%s: ccb %p, func_code %#x should not be allocated "
1804 		    "from UMA zone\n",
1805 		    __func__, start_ccb, start_ccb->ccb_h.func_code));
1806 	}
1807 
1808 	switch (start_ccb->ccb_h.func_code) {
1809 	case XPT_SET_TRAN_SETTINGS:
1810 	{
1811 		ata_set_transfer_settings(&start_ccb->cts,
1812 					   start_ccb->ccb_h.path,
1813 					   /*async_update*/FALSE);
1814 		break;
1815 	}
1816 	case XPT_SCAN_BUS:
1817 	case XPT_SCAN_TGT:
1818 		ata_scan_bus(start_ccb->ccb_h.path->periph, start_ccb);
1819 		break;
1820 	case XPT_SCAN_LUN:
1821 		ata_scan_lun(start_ccb->ccb_h.path->periph,
1822 			      start_ccb->ccb_h.path, start_ccb->crcn.flags,
1823 			      start_ccb);
1824 		break;
1825 	case XPT_GET_TRAN_SETTINGS:
1826 	{
1827 		ata_get_transfer_settings(&start_ccb->cts);
1828 		break;
1829 	}
1830 	case XPT_SCSI_IO:
1831 	{
1832 		struct cam_ed *device;
1833 		u_int	maxlen = 0;
1834 
1835 		device = start_ccb->ccb_h.path->device;
1836 		if (device->protocol == PROTO_SCSI &&
1837 		    (device->flags & CAM_DEV_IDENTIFY_DATA_VALID)) {
1838 			uint16_t p =
1839 			    device->ident_data.config & ATA_PROTO_MASK;
1840 
1841 			maxlen =
1842 			    (device->ident_data.config == ATA_PROTO_CFA) ? 0 :
1843 			    (p == ATA_PROTO_ATAPI_16) ? 16 :
1844 			    (p == ATA_PROTO_ATAPI_12) ? 12 : 0;
1845 		}
1846 		if (start_ccb->csio.cdb_len > maxlen) {
1847 			start_ccb->ccb_h.status = CAM_REQ_INVALID;
1848 			xpt_done(start_ccb);
1849 			break;
1850 		}
1851 		xpt_action_default(start_ccb);
1852 		break;
1853 	}
1854 	case XPT_DEV_ADVINFO:
1855 	{
1856 		ata_dev_advinfo(start_ccb);
1857 		break;
1858 	}
1859 	default:
1860 		xpt_action_default(start_ccb);
1861 		break;
1862 	}
1863 }
1864 
1865 static void
1866 ata_get_transfer_settings(struct ccb_trans_settings *cts)
1867 {
1868 	struct	ccb_trans_settings_ata *ata;
1869 	struct	ccb_trans_settings_scsi *scsi;
1870 	struct	cam_ed *device;
1871 
1872 	device = cts->ccb_h.path->device;
1873 	xpt_action_default((union ccb *)cts);
1874 
1875 	if (cts->protocol == PROTO_UNKNOWN ||
1876 	    cts->protocol == PROTO_UNSPECIFIED) {
1877 		cts->protocol = device->protocol;
1878 		cts->protocol_version = device->protocol_version;
1879 	}
1880 
1881 	if (cts->protocol == PROTO_ATA) {
1882 		ata = &cts->proto_specific.ata;
1883 		if ((ata->valid & CTS_ATA_VALID_TQ) == 0) {
1884 			ata->valid |= CTS_ATA_VALID_TQ;
1885 			if (cts->type == CTS_TYPE_USER_SETTINGS ||
1886 			    (device->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 ||
1887 			    (device->inq_flags & SID_CmdQue) != 0)
1888 				ata->flags |= CTS_ATA_FLAGS_TAG_ENB;
1889 		}
1890 	}
1891 	if (cts->protocol == PROTO_SCSI) {
1892 		scsi = &cts->proto_specific.scsi;
1893 		if ((scsi->valid & CTS_SCSI_VALID_TQ) == 0) {
1894 			scsi->valid |= CTS_SCSI_VALID_TQ;
1895 			if (cts->type == CTS_TYPE_USER_SETTINGS ||
1896 			    (device->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 ||
1897 			    (device->inq_flags & SID_CmdQue) != 0)
1898 				scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
1899 		}
1900 	}
1901 
1902 	if (cts->transport == XPORT_UNKNOWN ||
1903 	    cts->transport == XPORT_UNSPECIFIED) {
1904 		cts->transport = device->transport;
1905 		cts->transport_version = device->transport_version;
1906 	}
1907 }
1908 
1909 static void
1910 ata_set_transfer_settings(struct ccb_trans_settings *cts, struct cam_path *path,
1911 			   int async_update)
1912 {
1913 	struct	ccb_pathinq cpi;
1914 	struct	ccb_trans_settings_ata *ata;
1915 	struct	ccb_trans_settings_scsi *scsi;
1916 	struct	ata_params *ident_data;
1917 	struct	scsi_inquiry_data *inq_data;
1918 	struct	cam_ed *device;
1919 
1920 	if (path == NULL || (device = path->device) == NULL) {
1921 		cts->ccb_h.status = CAM_PATH_INVALID;
1922 		xpt_done((union ccb *)cts);
1923 		return;
1924 	}
1925 
1926 	if (cts->protocol == PROTO_UNKNOWN
1927 	 || cts->protocol == PROTO_UNSPECIFIED) {
1928 		cts->protocol = device->protocol;
1929 		cts->protocol_version = device->protocol_version;
1930 	}
1931 
1932 	if (cts->protocol_version == PROTO_VERSION_UNKNOWN
1933 	 || cts->protocol_version == PROTO_VERSION_UNSPECIFIED)
1934 		cts->protocol_version = device->protocol_version;
1935 
1936 	if (cts->protocol != device->protocol) {
1937 		xpt_print(path, "Uninitialized Protocol %x:%x?\n",
1938 		       cts->protocol, device->protocol);
1939 		cts->protocol = device->protocol;
1940 	}
1941 
1942 	if (cts->protocol_version > device->protocol_version) {
1943 		if (bootverbose) {
1944 			xpt_print(path, "Down reving Protocol "
1945 			    "Version from %d to %d?\n", cts->protocol_version,
1946 			    device->protocol_version);
1947 		}
1948 		cts->protocol_version = device->protocol_version;
1949 	}
1950 
1951 	if (cts->transport == XPORT_UNKNOWN
1952 	 || cts->transport == XPORT_UNSPECIFIED) {
1953 		cts->transport = device->transport;
1954 		cts->transport_version = device->transport_version;
1955 	}
1956 
1957 	if (cts->transport_version == XPORT_VERSION_UNKNOWN
1958 	 || cts->transport_version == XPORT_VERSION_UNSPECIFIED)
1959 		cts->transport_version = device->transport_version;
1960 
1961 	if (cts->transport != device->transport) {
1962 		xpt_print(path, "Uninitialized Transport %x:%x?\n",
1963 		    cts->transport, device->transport);
1964 		cts->transport = device->transport;
1965 	}
1966 
1967 	if (cts->transport_version > device->transport_version) {
1968 		if (bootverbose) {
1969 			xpt_print(path, "Down reving Transport "
1970 			    "Version from %d to %d?\n", cts->transport_version,
1971 			    device->transport_version);
1972 		}
1973 		cts->transport_version = device->transport_version;
1974 	}
1975 
1976 	ident_data = &device->ident_data;
1977 	inq_data = &device->inq_data;
1978 	if (cts->protocol == PROTO_ATA)
1979 		ata = &cts->proto_specific.ata;
1980 	else
1981 		ata = NULL;
1982 	if (cts->protocol == PROTO_SCSI)
1983 		scsi = &cts->proto_specific.scsi;
1984 	else
1985 		scsi = NULL;
1986 	xpt_path_inq(&cpi, path);
1987 
1988 	/* Sanity checking */
1989 	if ((cpi.hba_inquiry & PI_TAG_ABLE) == 0
1990 	 || (ata && (ident_data->satacapabilities & ATA_SUPPORT_NCQ) == 0)
1991 	 || (scsi && (INQ_DATA_TQ_ENABLED(inq_data)) == 0)
1992 	 || (device->queue_flags & SCP_QUEUE_DQUE) != 0
1993 	 || (device->mintags == 0)) {
1994 		/*
1995 		 * Can't tag on hardware that doesn't support tags,
1996 		 * doesn't have it enabled, or has broken tag support.
1997 		 */
1998 		if (ata)
1999 			ata->flags &= ~CTS_ATA_FLAGS_TAG_ENB;
2000 		if (scsi)
2001 			scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
2002 	}
2003 
2004 	/* Start/stop tags use. */
2005 	if (cts->type == CTS_TYPE_CURRENT_SETTINGS &&
2006 	    ((ata && (ata->valid & CTS_ATA_VALID_TQ) != 0) ||
2007 	     (scsi && (scsi->valid & CTS_SCSI_VALID_TQ) != 0))) {
2008 		int nowt, newt = 0;
2009 
2010 		nowt = ((device->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 ||
2011 			(device->inq_flags & SID_CmdQue) != 0);
2012 		if (ata)
2013 			newt = (ata->flags & CTS_ATA_FLAGS_TAG_ENB) != 0;
2014 		if (scsi)
2015 			newt = (scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0;
2016 
2017 		if (newt && !nowt) {
2018 			/*
2019 			 * Delay change to use tags until after a
2020 			 * few commands have gone to this device so
2021 			 * the controller has time to perform transfer
2022 			 * negotiations without tagged messages getting
2023 			 * in the way.
2024 			 */
2025 			device->tag_delay_count = CAM_TAG_DELAY_COUNT;
2026 			device->flags |= CAM_DEV_TAG_AFTER_COUNT;
2027 		} else if (nowt && !newt)
2028 			xpt_stop_tags(path);
2029 	}
2030 
2031 	if (async_update == FALSE)
2032 		xpt_action_default((union ccb *)cts);
2033 }
2034 
2035 /*
2036  * Handle any per-device event notifications that require action by the XPT.
2037  */
2038 static void
2039 ata_dev_async(u_int32_t async_code, struct cam_eb *bus, struct cam_et *target,
2040 	      struct cam_ed *device, void *async_arg)
2041 {
2042 	/*
2043 	 * We only need to handle events for real devices.
2044 	 */
2045 	if (target->target_id == CAM_TARGET_WILDCARD ||
2046 	    device->lun_id == CAM_LUN_WILDCARD)
2047 		return;
2048 
2049 	switch (async_code) {
2050 	case AC_SENT_BDR:
2051 	case AC_BUS_RESET:
2052 	case AC_INQ_CHANGED: {
2053 		cam_status status;
2054 		struct cam_path newpath;
2055 		cam_flags flags;
2056 
2057 		/*
2058 		 * We need our own path with wildcards expanded to handle these
2059 		 * events.
2060 		 */
2061 		status = xpt_compile_path(&newpath, NULL,
2062 					  bus->path_id,
2063 					  target->target_id,
2064 					  device->lun_id);
2065 		if (status != CAM_REQ_CMP)
2066 			break; /* fail safe and just drop it */
2067 
2068 		/*
2069 		 * For AC_INQ_CHANGED, we've sent a start unit command, or
2070 		 * something similar to a device that may have caused its
2071 		 * inquiry data to change. So we re-scan the device to refresh
2072 		 * the inquiry data for it, allowing changes. Otherwise we rescan
2073 		 * without allowing changes to respond to the reset, not allowing
2074 		 * changes.
2075 		 */
2076 		flags = async_code == AC_INQ_CHANGED ? CAM_EXPECT_INQ_CHANGE : 0;
2077 		ata_scan_lun(newpath.periph, &newpath, flags, NULL);
2078 		xpt_release_path(&newpath);
2079 		break;
2080 	}
2081 	case AC_TRANSFER_NEG: {
2082 		struct ccb_trans_settings *settings;
2083 		struct cam_path path;
2084 
2085 		settings = (struct ccb_trans_settings *)async_arg;
2086 		xpt_compile_path(&path, NULL, bus->path_id, target->target_id,
2087 				 device->lun_id);
2088 		ata_set_transfer_settings(settings, &path,
2089 					  /*async_update*/TRUE);
2090 		xpt_release_path(&path);
2091 		break;
2092 	}
2093 	case AC_LOST_DEVICE:
2094 		if ((device->flags & CAM_DEV_UNCONFIGURED) == 0) {
2095 			device->flags |= CAM_DEV_UNCONFIGURED;
2096 			xpt_release_device(device);
2097 		}
2098 		break;
2099 	}
2100 }
2101 
2102 static void
2103 _ata_announce_periph(struct cam_periph *periph, struct ccb_trans_settings *cts, u_int *speed)
2104 {
2105 	struct	ccb_pathinq cpi;
2106 	struct	cam_path *path = periph->path;
2107 
2108 	cam_periph_assert(periph, MA_OWNED);
2109 
2110 	xpt_setup_ccb(&cts->ccb_h, path, CAM_PRIORITY_NORMAL);
2111 	cts->ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
2112 	cts->type = CTS_TYPE_CURRENT_SETTINGS;
2113 	xpt_action((union ccb*)cts);
2114 	if ((cts->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP)
2115 		return;
2116 	/* Ask the SIM for its base transfer speed */
2117 	xpt_path_inq(&cpi, path);
2118 	/* Report connection speed */
2119 	*speed = cpi.base_transfer_speed;
2120 	if (cts->transport == XPORT_ATA) {
2121 		struct	ccb_trans_settings_pata *pata =
2122 		    &cts->xport_specific.ata;
2123 
2124 		if (pata->valid & CTS_ATA_VALID_MODE)
2125 			*speed = ata_mode2speed(pata->mode);
2126 	}
2127 	if (cts->transport == XPORT_SATA) {
2128 		struct	ccb_trans_settings_sata *sata =
2129 		    &cts->xport_specific.sata;
2130 
2131 		if (sata->valid & CTS_SATA_VALID_REVISION)
2132 			*speed = ata_revision2speed(sata->revision);
2133 	}
2134 }
2135 
2136 static void
2137 ata_announce_periph(struct cam_periph *periph)
2138 {
2139 	struct ccb_trans_settings cts;
2140 	u_int speed, mb;
2141 
2142 	bzero(&cts, sizeof(cts));
2143 	_ata_announce_periph(periph, &cts, &speed);
2144 	if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP)
2145 		return;
2146 
2147 	mb = speed / 1000;
2148 	if (mb > 0)
2149 		printf("%s%d: %d.%03dMB/s transfers",
2150 		       periph->periph_name, periph->unit_number,
2151 		       mb, speed % 1000);
2152 	else
2153 		printf("%s%d: %dKB/s transfers", periph->periph_name,
2154 		       periph->unit_number, speed);
2155 	/* Report additional information about connection */
2156 	if (cts.transport == XPORT_ATA) {
2157 		struct ccb_trans_settings_pata *pata =
2158 		    &cts.xport_specific.ata;
2159 
2160 		printf(" (");
2161 		if (pata->valid & CTS_ATA_VALID_MODE)
2162 			printf("%s, ", ata_mode2string(pata->mode));
2163 		if ((pata->valid & CTS_ATA_VALID_ATAPI) && pata->atapi != 0)
2164 			printf("ATAPI %dbytes, ", pata->atapi);
2165 		if (pata->valid & CTS_ATA_VALID_BYTECOUNT)
2166 			printf("PIO %dbytes", pata->bytecount);
2167 		printf(")");
2168 	}
2169 	if (cts.transport == XPORT_SATA) {
2170 		struct ccb_trans_settings_sata *sata =
2171 		    &cts.xport_specific.sata;
2172 
2173 		printf(" (");
2174 		if (sata->valid & CTS_SATA_VALID_REVISION)
2175 			printf("SATA %d.x, ", sata->revision);
2176 		else
2177 			printf("SATA, ");
2178 		if (sata->valid & CTS_SATA_VALID_MODE)
2179 			printf("%s, ", ata_mode2string(sata->mode));
2180 		if ((sata->valid & CTS_ATA_VALID_ATAPI) && sata->atapi != 0)
2181 			printf("ATAPI %dbytes, ", sata->atapi);
2182 		if (sata->valid & CTS_SATA_VALID_BYTECOUNT)
2183 			printf("PIO %dbytes", sata->bytecount);
2184 		printf(")");
2185 	}
2186 	printf("\n");
2187 }
2188 
2189 static void
2190 ata_announce_periph_sbuf(struct cam_periph *periph, struct sbuf *sb)
2191 {
2192 	struct ccb_trans_settings cts;
2193 	u_int speed, mb;
2194 
2195 	bzero(&cts, sizeof(cts));
2196 	_ata_announce_periph(periph, &cts, &speed);
2197 	if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP)
2198 		return;
2199 
2200 	mb = speed / 1000;
2201 	if (mb > 0)
2202 		sbuf_printf(sb, "%s%d: %d.%03dMB/s transfers",
2203 		       periph->periph_name, periph->unit_number,
2204 		       mb, speed % 1000);
2205 	else
2206 		sbuf_printf(sb, "%s%d: %dKB/s transfers", periph->periph_name,
2207 		       periph->unit_number, speed);
2208 	/* Report additional information about connection */
2209 	if (cts.transport == XPORT_ATA) {
2210 		struct ccb_trans_settings_pata *pata =
2211 		    &cts.xport_specific.ata;
2212 
2213 		sbuf_printf(sb, " (");
2214 		if (pata->valid & CTS_ATA_VALID_MODE)
2215 			sbuf_printf(sb, "%s, ", ata_mode2string(pata->mode));
2216 		if ((pata->valid & CTS_ATA_VALID_ATAPI) && pata->atapi != 0)
2217 			sbuf_printf(sb, "ATAPI %dbytes, ", pata->atapi);
2218 		if (pata->valid & CTS_ATA_VALID_BYTECOUNT)
2219 			sbuf_printf(sb, "PIO %dbytes", pata->bytecount);
2220 		sbuf_printf(sb, ")");
2221 	}
2222 	if (cts.transport == XPORT_SATA) {
2223 		struct ccb_trans_settings_sata *sata =
2224 		    &cts.xport_specific.sata;
2225 
2226 		sbuf_printf(sb, " (");
2227 		if (sata->valid & CTS_SATA_VALID_REVISION)
2228 			sbuf_printf(sb, "SATA %d.x, ", sata->revision);
2229 		else
2230 			sbuf_printf(sb, "SATA, ");
2231 		if (sata->valid & CTS_SATA_VALID_MODE)
2232 			sbuf_printf(sb, "%s, ", ata_mode2string(sata->mode));
2233 		if ((sata->valid & CTS_ATA_VALID_ATAPI) && sata->atapi != 0)
2234 			sbuf_printf(sb, "ATAPI %dbytes, ", sata->atapi);
2235 		if (sata->valid & CTS_SATA_VALID_BYTECOUNT)
2236 			sbuf_printf(sb, "PIO %dbytes", sata->bytecount);
2237 		sbuf_printf(sb, ")");
2238 	}
2239 	sbuf_printf(sb, "\n");
2240 }
2241 
2242 static void
2243 ata_proto_announce_sbuf(struct cam_ed *device, struct sbuf *sb)
2244 {
2245 	ata_print_ident_sbuf(&device->ident_data, sb);
2246 }
2247 
2248 static void
2249 ata_proto_announce(struct cam_ed *device)
2250 {
2251 	ata_print_ident(&device->ident_data);
2252 }
2253 
2254 static void
2255 ata_proto_denounce(struct cam_ed *device)
2256 {
2257 	ata_print_ident_short(&device->ident_data);
2258 }
2259 
2260 static void
2261 ata_proto_denounce_sbuf(struct cam_ed *device, struct sbuf *sb)
2262 {
2263 	ata_print_ident_short_sbuf(&device->ident_data, sb);
2264 }
2265 
2266 static void
2267 semb_proto_announce_sbuf(struct cam_ed *device, struct sbuf *sb)
2268 {
2269 	semb_print_ident_sbuf((struct sep_identify_data *)&device->ident_data, sb);
2270 }
2271 
2272 static void
2273 semb_proto_announce(struct cam_ed *device)
2274 {
2275 	semb_print_ident((struct sep_identify_data *)&device->ident_data);
2276 }
2277 
2278 static void
2279 semb_proto_denounce(struct cam_ed *device)
2280 {
2281 	semb_print_ident_short((struct sep_identify_data *)&device->ident_data);
2282 }
2283 
2284 static void
2285 semb_proto_denounce_sbuf(struct cam_ed *device, struct sbuf *sb)
2286 {
2287 	semb_print_ident_short_sbuf((struct sep_identify_data *)&device->ident_data, sb);
2288 }
2289 
2290 static void
2291 ata_proto_debug_out(union ccb *ccb)
2292 {
2293 	char cdb_str[(sizeof(struct ata_cmd) * 3) + 1];
2294 
2295 	if (ccb->ccb_h.func_code != XPT_ATA_IO)
2296 		return;
2297 
2298 	CAM_DEBUG(ccb->ccb_h.path,
2299 	    CAM_DEBUG_CDB,("%s. ACB: %s\n", ata_op_string(&ccb->ataio.cmd),
2300 		ata_cmd_string(&ccb->ataio.cmd, cdb_str, sizeof(cdb_str))));
2301 }
2302