2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2015 Netflix, Inc.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer,
11 * without modification, immediately at the beginning of the file.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 * derived from ata_xpt.c: Copyright (c) 2009 Alexander Motin <mav@FreeBSD.org>
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
33 #include <sys/param.h>
35 #include <sys/endian.h>
36 #include <sys/systm.h>
37 #include <sys/types.h>
38 #include <sys/malloc.h>
39 #include <sys/kernel.h>
42 #include <sys/fcntl.h>
46 #include <sys/mutex.h>
47 #include <sys/sysctl.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>
60 #include <cam/scsi/scsi_all.h>
61 #include <cam/scsi/scsi_message.h>
62 #include <cam/nvme/nvme_all.h>
63 #include <machine/stdarg.h> /* for xpt_print below */
66 struct nvme_quirk_entry {
68 #define CAM_QUIRK_MAXTAGS 1
73 /* Not even sure why we need this */
74 static periph_init_t nvme_probe_periph_init;
76 static struct periph_driver nvme_probe_driver =
78 nvme_probe_periph_init, "nvme_probe",
79 TAILQ_HEAD_INITIALIZER(nvme_probe_driver.units), /* generation */ 0,
83 PERIPHDRIVER_DECLARE(nvme_probe, nvme_probe_driver);
86 NVME_PROBE_IDENTIFY_CD,
87 NVME_PROBE_IDENTIFY_NS,
92 static char *nvme_probe_action_text[] = {
93 "NVME_PROBE_IDENTIFY_CD",
94 "NVME_PROBE_IDENTIFY_NS",
99 #define NVME_PROBE_SET_ACTION(softc, newaction) \
102 text = nvme_probe_action_text; \
103 CAM_DEBUG((softc)->periph->path, CAM_DEBUG_PROBE, \
104 ("Probe %s to %s\n", text[(softc)->action], \
105 text[(newaction)])); \
106 (softc)->action = (newaction); \
110 NVME_PROBE_NO_ANNOUNCE = 0x04
114 TAILQ_HEAD(, ccb_hdr) request_ccbs;
116 struct nvme_controller_data cd;
117 struct nvme_namespace_data ns;
119 nvme_probe_action action;
120 nvme_probe_flags flags;
122 struct cam_periph *periph;
125 static struct nvme_quirk_entry nvme_quirk_table[] =
129 // T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED,
130 // /*vendor*/"*", /*product*/"*", /*revision*/"*"
132 .quirks = 0, .mintags = 0, .maxtags = 0
136 static const int nvme_quirk_table_size =
137 sizeof(nvme_quirk_table) / sizeof(*nvme_quirk_table);
139 static cam_status nvme_probe_register(struct cam_periph *periph,
141 static void nvme_probe_schedule(struct cam_periph *nvme_probe_periph);
142 static void nvme_probe_start(struct cam_periph *periph, union ccb *start_ccb);
143 static void nvme_probe_done(struct cam_periph *periph, union ccb *done_ccb);
144 static void nvme_probe_cleanup(struct cam_periph *periph);
145 //static void nvme_find_quirk(struct cam_ed *device);
146 static void nvme_scan_lun(struct cam_periph *periph,
147 struct cam_path *path, cam_flags flags,
149 static struct cam_ed *
150 nvme_alloc_device(struct cam_eb *bus, struct cam_et *target,
152 static void nvme_device_transport(struct cam_path *path);
153 static void nvme_dev_async(u_int32_t async_code,
155 struct cam_et *target,
156 struct cam_ed *device,
158 static void nvme_action(union ccb *start_ccb);
159 static void nvme_announce_periph(struct cam_periph *periph);
160 static void nvme_proto_announce(struct cam_ed *device);
161 static void nvme_proto_denounce(struct cam_ed *device);
162 static void nvme_proto_debug_out(union ccb *ccb);
164 static struct xpt_xport_ops nvme_xport_ops = {
165 .alloc_device = nvme_alloc_device,
166 .action = nvme_action,
167 .async = nvme_dev_async,
168 .announce = nvme_announce_periph,
170 #define NVME_XPT_XPORT(x, X) \
171 static struct xpt_xport nvme_xport_ ## x = { \
172 .xport = XPORT_ ## X, \
174 .ops = &nvme_xport_ops, \
176 CAM_XPT_XPORT(nvme_xport_ ## x);
178 NVME_XPT_XPORT(nvme, NVME);
180 #undef NVME_XPT_XPORT
182 static struct xpt_proto_ops nvme_proto_ops = {
183 .announce = nvme_proto_announce,
184 .denounce = nvme_proto_denounce,
185 .debug_out = nvme_proto_debug_out,
187 static struct xpt_proto nvme_proto = {
190 .ops = &nvme_proto_ops,
192 CAM_XPT_PROTO(nvme_proto);
195 nvme_probe_periph_init(void)
200 nvme_probe_register(struct cam_periph *periph, void *arg)
202 union ccb *request_ccb; /* CCB representing the probe request */
203 nvme_probe_softc *softc;
205 request_ccb = (union ccb *)arg;
206 if (request_ccb == NULL) {
207 printf("nvme_probe_register: no probe CCB, "
208 "can't register device\n");
209 return(CAM_REQ_CMP_ERR);
212 softc = (nvme_probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_ZERO | M_NOWAIT);
215 printf("nvme_probe_register: Unable to probe new device. "
216 "Unable to allocate softc\n");
217 return(CAM_REQ_CMP_ERR);
219 TAILQ_INIT(&softc->request_ccbs);
220 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h,
223 periph->softc = softc;
224 softc->periph = periph;
225 softc->action = NVME_PROBE_INVALID;
226 if (cam_periph_acquire(periph) != 0)
227 return (CAM_REQ_CMP_ERR);
229 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe started\n"));
231 // nvme_device_transport(periph->path);
232 nvme_probe_schedule(periph);
238 nvme_probe_schedule(struct cam_periph *periph)
241 nvme_probe_softc *softc;
243 softc = (nvme_probe_softc *)periph->softc;
244 ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs);
246 NVME_PROBE_SET_ACTION(softc, NVME_PROBE_IDENTIFY_CD);
248 if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE)
249 softc->flags |= NVME_PROBE_NO_ANNOUNCE;
251 softc->flags &= ~NVME_PROBE_NO_ANNOUNCE;
253 xpt_schedule(periph, CAM_PRIORITY_XPT);
257 nvme_probe_start(struct cam_periph *periph, union ccb *start_ccb)
259 struct ccb_nvmeio *nvmeio;
260 nvme_probe_softc *softc;
263 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("nvme_probe_start\n"));
265 softc = (nvme_probe_softc *)periph->softc;
266 nvmeio = &start_ccb->nvmeio;
267 lun = xpt_path_lun_id(periph->path);
269 if (softc->restart) {
271 NVME_PROBE_SET_ACTION(softc, NVME_PROBE_IDENTIFY_CD);
274 switch (softc->action) {
275 case NVME_PROBE_IDENTIFY_CD:
276 cam_fill_nvmeadmin(nvmeio,
278 nvme_probe_done, /* cbfcnp */
279 CAM_DIR_IN, /* flags */
280 (uint8_t *)&softc->cd, /* data_ptr */
281 sizeof(softc->cd), /* dxfer_len */
282 30 * 1000); /* timeout 30s */
283 nvme_ns_cmd(nvmeio, NVME_OPC_IDENTIFY, 0,
286 case NVME_PROBE_IDENTIFY_NS:
287 cam_fill_nvmeadmin(nvmeio,
289 nvme_probe_done, /* cbfcnp */
290 CAM_DIR_IN, /* flags */
291 (uint8_t *)&softc->ns, /* data_ptr */
292 sizeof(softc->ns), /* dxfer_len */
293 30 * 1000); /* timeout 30s */
294 nvme_ns_cmd(nvmeio, NVME_OPC_IDENTIFY, lun,
298 panic("nvme_probe_start: invalid action state 0x%x\n", softc->action);
300 start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
301 xpt_action(start_ccb);
305 nvme_probe_done(struct cam_periph *periph, union ccb *done_ccb)
307 struct nvme_namespace_data *nvme_data;
308 struct nvme_controller_data *nvme_cdata;
309 nvme_probe_softc *softc;
310 struct cam_path *path;
311 struct scsi_vpd_device_id *did;
312 struct scsi_vpd_id_descriptor *idd;
314 int found = 1, e, g, len;
316 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("nvme_probe_done\n"));
318 softc = (nvme_probe_softc *)periph->softc;
319 path = done_ccb->ccb_h.path;
320 priority = done_ccb->ccb_h.pinfo.priority;
322 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
323 if (cam_periph_error(done_ccb,
324 0, softc->restart ? (SF_NO_RECOVERY | SF_NO_RETRY) : 0
327 /* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */
328 cam_release_devq(path, 0, 0, 0, FALSE);
331 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
332 /* Don't wedge the queue */
333 xpt_release_devq(path, /*count*/1, /*run_queue*/TRUE);
337 * If we get to this point, we got an error status back
338 * from the inquiry and the error status doesn't require
339 * automatically retrying the command. Therefore, the
340 * inquiry failed. If we had inquiry information before
341 * for this device, but this latest inquiry command failed,
342 * the device has probably gone away. If this device isn't
343 * already marked unconfigured, notify the peripheral
344 * drivers that this device is no more.
346 device_fail: if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0)
347 xpt_async(AC_LOST_DEVICE, path, NULL);
348 NVME_PROBE_SET_ACTION(softc, NVME_PROBE_INVALID);
354 switch (softc->action) {
355 case NVME_PROBE_IDENTIFY_CD:
356 nvme_controller_data_swapbytes(&softc->cd);
358 nvme_cdata = path->device->nvme_cdata;
359 if (nvme_cdata == NULL) {
360 nvme_cdata = malloc(sizeof(*nvme_cdata), M_CAMXPT,
362 if (nvme_cdata == NULL) {
363 xpt_print(path, "Can't allocate memory");
367 bcopy(&softc->cd, nvme_cdata, sizeof(*nvme_cdata));
368 path->device->nvme_cdata = nvme_cdata;
370 /* Save/update serial number. */
371 if (path->device->serial_num != NULL) {
372 free(path->device->serial_num, M_CAMXPT);
373 path->device->serial_num = NULL;
374 path->device->serial_num_len = 0;
376 path->device->serial_num = (u_int8_t *)
377 malloc(NVME_SERIAL_NUMBER_LENGTH + 1, M_CAMXPT, M_NOWAIT);
378 if (path->device->serial_num != NULL) {
379 cam_strvis(path->device->serial_num, nvme_cdata->sn,
380 NVME_SERIAL_NUMBER_LENGTH, NVME_SERIAL_NUMBER_LENGTH + 1);
381 path->device->serial_num_len =
382 strlen(path->device->serial_num);
385 // nvme_find_quirk(path->device);
386 nvme_device_transport(path);
387 NVME_PROBE_SET_ACTION(softc, NVME_PROBE_IDENTIFY_NS);
388 xpt_release_ccb(done_ccb);
389 xpt_schedule(periph, priority);
391 case NVME_PROBE_IDENTIFY_NS:
392 nvme_namespace_data_swapbytes(&softc->ns);
394 /* Check that the namespace exists. */
395 if (softc->ns.nsze == 0)
398 nvme_data = path->device->nvme_data;
399 if (nvme_data == NULL) {
400 nvme_data = malloc(sizeof(*nvme_data), M_CAMXPT,
402 if (nvme_data == NULL) {
403 xpt_print(path, "Can't allocate memory");
407 bcopy(&softc->ns, nvme_data, sizeof(*nvme_data));
408 path->device->nvme_data = nvme_data;
410 /* Save/update device_id based on NGUID and/or EUI64. */
411 if (path->device->device_id != NULL) {
412 free(path->device->device_id, M_CAMXPT);
413 path->device->device_id = NULL;
414 path->device->device_id_len = 0;
417 for (g = 0; g < sizeof(nvme_data->nguid); g++) {
418 if (nvme_data->nguid[g] != 0)
421 if (g < sizeof(nvme_data->nguid))
422 len += sizeof(struct scsi_vpd_id_descriptor) + 16;
423 for (e = 0; e < sizeof(nvme_data->eui64); e++) {
424 if (nvme_data->eui64[e] != 0)
427 if (e < sizeof(nvme_data->eui64))
428 len += sizeof(struct scsi_vpd_id_descriptor) + 8;
430 path->device->device_id = (u_int8_t *)
431 malloc(SVPD_DEVICE_ID_HDR_LEN + len,
434 if (path->device->device_id != NULL) {
435 did = (struct scsi_vpd_device_id *)path->device->device_id;
436 did->device = SID_QUAL_LU_CONNECTED | T_DIRECT;
437 did->page_code = SVPD_DEVICE_ID;
438 scsi_ulto2b(len, did->length);
439 idd = (struct scsi_vpd_id_descriptor *)(did + 1);
440 if (g < sizeof(nvme_data->nguid)) {
441 idd->proto_codeset = SVPD_ID_CODESET_BINARY;
442 idd->id_type = SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_EUI64;
444 bcopy(nvme_data->nguid, idd->identifier, 16);
445 idd = (struct scsi_vpd_id_descriptor *)
446 &idd->identifier[16];
448 if (e < sizeof(nvme_data->eui64)) {
449 idd->proto_codeset = SVPD_ID_CODESET_BINARY;
450 idd->id_type = SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_EUI64;
452 bcopy(nvme_data->eui64, idd->identifier, 8);
454 path->device->device_id_len = SVPD_DEVICE_ID_HDR_LEN + len;
457 if (periph->path->device->flags & CAM_DEV_UNCONFIGURED) {
458 path->device->flags &= ~CAM_DEV_UNCONFIGURED;
459 xpt_acquire_device(path->device);
460 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE;
461 xpt_action(done_ccb);
462 xpt_async(AC_FOUND_DEVICE, path, done_ccb);
464 NVME_PROBE_SET_ACTION(softc, NVME_PROBE_DONE);
467 panic("nvme_probe_done: invalid action state 0x%x\n", softc->action);
470 if (softc->restart) {
472 xpt_release_ccb(done_ccb);
473 nvme_probe_schedule(periph);
476 xpt_release_ccb(done_ccb);
477 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe completed\n"));
478 while ((done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs))) {
479 TAILQ_REMOVE(&softc->request_ccbs,
480 &done_ccb->ccb_h, periph_links.tqe);
481 done_ccb->ccb_h.status = found ? CAM_REQ_CMP : CAM_REQ_CMP_ERR;
484 /* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */
485 cam_release_devq(path, 0, 0, 0, FALSE);
486 cam_periph_invalidate(periph);
487 cam_periph_release_locked(periph);
491 nvme_probe_cleanup(struct cam_periph *periph)
494 free(periph->softc, M_CAMXPT);
498 /* XXX should be used, don't delete */
500 nvme_find_quirk(struct cam_ed *device)
502 struct nvme_quirk_entry *quirk;
505 match = cam_quirkmatch((caddr_t)&device->nvme_data,
506 (caddr_t)nvme_quirk_table,
507 nvme_quirk_table_size,
508 sizeof(*nvme_quirk_table), nvme_identify_match);
511 panic("xpt_find_quirk: device didn't match wildcard entry!!");
513 quirk = (struct nvme_quirk_entry *)match;
514 device->quirk = quirk;
515 if (quirk->quirks & CAM_QUIRK_MAXTAGS) {
516 device->mintags = quirk->mintags;
517 device->maxtags = quirk->maxtags;
523 nvme_scan_lun(struct cam_periph *periph, struct cam_path *path,
524 cam_flags flags, union ccb *request_ccb)
526 struct ccb_pathinq cpi;
528 struct cam_periph *old_periph;
531 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("nvme_scan_lun\n"));
533 xpt_path_inq(&cpi, path);
535 if (cpi.ccb_h.status != CAM_REQ_CMP) {
536 if (request_ccb != NULL) {
537 request_ccb->ccb_h.status = cpi.ccb_h.status;
538 xpt_done(request_ccb);
543 if (xpt_path_lun_id(path) == CAM_LUN_WILDCARD) {
544 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("nvme_scan_lun ignoring bus\n"));
545 request_ccb->ccb_h.status = CAM_REQ_CMP; /* XXX signal error ? */
546 xpt_done(request_ccb);
550 lock = (xpt_path_owned(path) == 0);
553 if ((old_periph = cam_periph_find(path, "nvme_probe")) != NULL) {
554 if ((old_periph->flags & CAM_PERIPH_INVALID) == 0) {
555 nvme_probe_softc *softc;
557 softc = (nvme_probe_softc *)old_periph->softc;
558 TAILQ_INSERT_TAIL(&softc->request_ccbs,
559 &request_ccb->ccb_h, periph_links.tqe);
561 CAM_DEBUG(path, CAM_DEBUG_TRACE,
562 ("restarting nvme_probe device\n"));
564 request_ccb->ccb_h.status = CAM_REQ_CMP_ERR;
565 CAM_DEBUG(path, CAM_DEBUG_TRACE,
566 ("Failing to restart nvme_probe device\n"));
567 xpt_done(request_ccb);
570 CAM_DEBUG(path, CAM_DEBUG_TRACE,
571 ("Adding nvme_probe device\n"));
572 status = cam_periph_alloc(nvme_probe_register, NULL, nvme_probe_cleanup,
573 nvme_probe_start, "nvme_probe",
575 request_ccb->ccb_h.path, NULL, 0,
578 if (status != CAM_REQ_CMP) {
579 xpt_print(path, "xpt_scan_lun: cam_alloc_periph "
580 "returned an error, can't continue probe\n");
581 request_ccb->ccb_h.status = status;
582 xpt_done(request_ccb);
586 xpt_path_unlock(path);
589 static struct cam_ed *
590 nvme_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id)
592 struct nvme_quirk_entry *quirk;
593 struct cam_ed *device;
595 device = xpt_alloc_device(bus, target, lun_id);
600 * Take the default quirk entry until we have inquiry
601 * data from nvme and can determine a better quirk to use.
603 quirk = &nvme_quirk_table[nvme_quirk_table_size - 1];
604 device->quirk = (void *)quirk;
607 device->inq_flags = 0;
608 device->queue_flags = 0;
609 device->device_id = NULL;
610 device->device_id_len = 0;
611 device->serial_num = NULL;
612 device->serial_num_len = 0;
617 nvme_device_transport(struct cam_path *path)
619 struct ccb_pathinq cpi;
620 struct ccb_trans_settings cts;
621 /* XXX get data from nvme namespace and other info ??? */
623 /* Get transport information from the SIM */
624 xpt_path_inq(&cpi, path);
626 path->device->transport = cpi.transport;
627 path->device->transport_version = cpi.transport_version;
629 path->device->protocol = cpi.protocol;
630 path->device->protocol_version = cpi.protocol_version;
632 /* Tell the controller what we think */
633 memset(&cts, 0, sizeof(cts));
634 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE);
635 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS;
636 cts.type = CTS_TYPE_CURRENT_SETTINGS;
637 cts.transport = path->device->transport;
638 cts.transport_version = path->device->transport_version;
639 cts.protocol = path->device->protocol;
640 cts.protocol_version = path->device->protocol_version;
641 cts.proto_specific.valid = 0;
642 cts.xport_specific.valid = 0;
643 xpt_action((union ccb *)&cts);
647 nvme_dev_advinfo(union ccb *start_ccb)
649 struct cam_ed *device;
650 struct ccb_dev_advinfo *cdai;
653 xpt_path_assert(start_ccb->ccb_h.path, MA_OWNED);
654 start_ccb->ccb_h.status = CAM_REQ_INVALID;
655 device = start_ccb->ccb_h.path->device;
656 cdai = &start_ccb->cdai;
657 switch(cdai->buftype) {
658 case CDAI_TYPE_SCSI_DEVID:
659 if (cdai->flags & CDAI_FLAG_STORE)
661 cdai->provsiz = device->device_id_len;
662 if (device->device_id_len == 0)
664 amt = device->device_id_len;
665 if (cdai->provsiz > cdai->bufsiz)
667 memcpy(cdai->buf, device->device_id, amt);
669 case CDAI_TYPE_SERIAL_NUM:
670 if (cdai->flags & CDAI_FLAG_STORE)
672 cdai->provsiz = device->serial_num_len;
673 if (device->serial_num_len == 0)
675 amt = device->serial_num_len;
676 if (cdai->provsiz > cdai->bufsiz)
678 memcpy(cdai->buf, device->serial_num, amt);
680 case CDAI_TYPE_PHYS_PATH:
681 if (cdai->flags & CDAI_FLAG_STORE) {
682 if (device->physpath != NULL) {
683 free(device->physpath, M_CAMXPT);
684 device->physpath = NULL;
685 device->physpath_len = 0;
687 /* Clear existing buffer if zero length */
688 if (cdai->bufsiz == 0)
690 device->physpath = malloc(cdai->bufsiz, M_CAMXPT, M_NOWAIT);
691 if (device->physpath == NULL) {
692 start_ccb->ccb_h.status = CAM_REQ_ABORTED;
695 device->physpath_len = cdai->bufsiz;
696 memcpy(device->physpath, cdai->buf, cdai->bufsiz);
698 cdai->provsiz = device->physpath_len;
699 if (device->physpath_len == 0)
701 amt = device->physpath_len;
702 if (cdai->provsiz > cdai->bufsiz)
704 memcpy(cdai->buf, device->physpath, amt);
707 case CDAI_TYPE_NVME_CNTRL:
708 if (cdai->flags & CDAI_FLAG_STORE)
710 amt = sizeof(struct nvme_controller_data);
712 if (amt > cdai->bufsiz)
714 memcpy(cdai->buf, device->nvme_cdata, amt);
716 case CDAI_TYPE_NVME_NS:
717 if (cdai->flags & CDAI_FLAG_STORE)
719 amt = sizeof(struct nvme_namespace_data);
721 if (amt > cdai->bufsiz)
723 memcpy(cdai->buf, device->nvme_data, amt);
728 start_ccb->ccb_h.status = CAM_REQ_CMP;
730 if (cdai->flags & CDAI_FLAG_STORE) {
731 xpt_async(AC_ADVINFO_CHANGED, start_ccb->ccb_h.path,
732 (void *)(uintptr_t)cdai->buftype);
737 nvme_action(union ccb *start_ccb)
739 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE,
740 ("nvme_action: func= %#x\n", start_ccb->ccb_h.func_code));
742 switch (start_ccb->ccb_h.func_code) {
746 nvme_scan_lun(start_ccb->ccb_h.path->periph,
747 start_ccb->ccb_h.path, start_ccb->crcn.flags,
750 case XPT_DEV_ADVINFO:
751 nvme_dev_advinfo(start_ccb);
755 xpt_action_default(start_ccb);
761 * Handle any per-device event notifications that require action by the XPT.
764 nvme_dev_async(u_int32_t async_code, struct cam_eb *bus, struct cam_et *target,
765 struct cam_ed *device, void *async_arg)
769 * We only need to handle events for real devices.
771 if (target->target_id == CAM_TARGET_WILDCARD
772 || device->lun_id == CAM_LUN_WILDCARD)
775 if (async_code == AC_LOST_DEVICE &&
776 (device->flags & CAM_DEV_UNCONFIGURED) == 0) {
777 device->flags |= CAM_DEV_UNCONFIGURED;
778 xpt_release_device(device);
783 nvme_announce_periph(struct cam_periph *periph)
785 struct ccb_pathinq cpi;
786 struct ccb_trans_settings cts;
787 struct cam_path *path = periph->path;
788 struct ccb_trans_settings_nvme *nvmex;
792 cam_periph_assert(periph, MA_OWNED);
794 /* Ask the SIM for connection details */
795 memset(&cts, 0, sizeof(cts));
796 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL);
797 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
798 cts.type = CTS_TYPE_CURRENT_SETTINGS;
799 xpt_action((union ccb*)&cts);
800 if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP)
802 nvmex = &cts.xport_specific.nvme;
804 /* Ask the SIM for its base transfer speed */
805 xpt_path_inq(&cpi, periph->path);
806 sbuf_new(&sb, buffer, sizeof(buffer), SBUF_FIXEDLEN);
807 sbuf_printf(&sb, "%s%d: nvme version %d.%d",
808 periph->periph_name, periph->unit_number,
809 NVME_MAJOR(nvmex->spec),
810 NVME_MINOR(nvmex->spec));
811 if (nvmex->valid & CTS_NVME_VALID_LINK)
812 sbuf_printf(&sb, " x%d (max x%d) lanes PCIe Gen%d (max Gen%d) link",
813 nvmex->lanes, nvmex->max_lanes,
814 nvmex->speed, nvmex->max_speed);
815 sbuf_printf(&sb, "\n");
821 nvme_proto_announce(struct cam_ed *device)
826 sbuf_new(&sb, buffer, sizeof(buffer), SBUF_FIXEDLEN);
827 nvme_print_ident(device->nvme_cdata, device->nvme_data, &sb);
833 nvme_proto_denounce(struct cam_ed *device)
836 nvme_proto_announce(device);
840 nvme_proto_debug_out(union ccb *ccb)
842 char cdb_str[(sizeof(struct nvme_command) * 3) + 1];
844 if (ccb->ccb_h.func_code != XPT_NVME_IO &&
845 ccb->ccb_h.func_code != XPT_NVME_ADMIN)
848 CAM_DEBUG(ccb->ccb_h.path,
849 CAM_DEBUG_CDB,("%s. NCB: %s\n", nvme_op_string(&ccb->nvmeio.cmd,
850 ccb->ccb_h.func_code == XPT_NVME_ADMIN),
851 nvme_cmd_string(&ccb->nvmeio.cmd, cdb_str, sizeof(cdb_str))));