2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 2008 Yahoo!, Inc.
6 * Written by: John Baldwin <jhb@FreeBSD.org>
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
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 * 3. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 #include <sys/cdefs.h>
36 #include <sys/param.h>
45 #include <cam/scsi/scsi_message.h>
46 #include <cam/scsi/scsi_pass.h>
57 xptfd = open(XPT_DEVICE, O_RDWR);
61 /* Fetch the path id of bus 0 for the opened mpt controller. */
63 fetch_path_id(path_id_t *path_id)
65 struct bus_match_pattern *b;
73 /* First, find the path id of bus 0 for this mpt controller. */
74 bzero(&ccb, sizeof(ccb));
76 ccb.ccb_h.func_code = XPT_DEV_MATCH;
78 bufsize = sizeof(struct dev_match_result) * 1;
79 ccb.cdm.num_matches = 0;
80 ccb.cdm.match_buf_len = bufsize;
81 ccb.cdm.matches = calloc(1, bufsize);
83 bufsize = sizeof(struct dev_match_pattern) * 1;
84 ccb.cdm.num_patterns = 1;
85 ccb.cdm.pattern_buf_len = bufsize;
86 ccb.cdm.patterns = calloc(1, bufsize);
88 /* Match mptX bus 0. */
89 ccb.cdm.patterns[0].type = DEV_MATCH_BUS;
90 b = &ccb.cdm.patterns[0].pattern.bus_pattern;
91 snprintf(b->dev_name, sizeof(b->dev_name), "mpt");
92 b->unit_number = mpt_unit;
94 b->flags = BUS_MATCH_NAME | BUS_MATCH_UNIT | BUS_MATCH_BUS_ID;
96 if (ioctl(xptfd, CAMIOCOMMAND, &ccb) < 0) {
98 free(ccb.cdm.matches);
99 free(ccb.cdm.patterns);
102 free(ccb.cdm.patterns);
104 if (((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) ||
105 (ccb.cdm.status != CAM_DEV_MATCH_LAST)) {
106 warnx("fetch_path_id got CAM error %#x, CDM error %d\n",
107 ccb.ccb_h.status, ccb.cdm.status);
108 free(ccb.cdm.matches);
112 /* We should have exactly 1 match for the bus. */
113 if (ccb.cdm.num_matches != 1 ||
114 ccb.cdm.matches[0].type != DEV_MATCH_BUS) {
115 free(ccb.cdm.matches);
118 *path_id = ccb.cdm.matches[0].result.bus_result.path_id;
119 free(ccb.cdm.matches);
124 mpt_query_disk(U8 VolumeBus, U8 VolumeID, struct mpt_query_disk *qd)
126 struct periph_match_pattern *p;
127 struct periph_match_result *r;
133 /* mpt(4) only handles devices on bus 0. */
140 /* Find the path ID of bus 0. */
141 error = fetch_path_id(&path_id);
145 bzero(&ccb, sizeof(ccb));
147 ccb.ccb_h.func_code = XPT_DEV_MATCH;
148 ccb.ccb_h.path_id = CAM_XPT_PATH_ID;
149 ccb.ccb_h.target_id = CAM_TARGET_WILDCARD;
150 ccb.ccb_h.target_lun = CAM_LUN_WILDCARD;
152 bufsize = sizeof(struct dev_match_result) * 5;
153 ccb.cdm.num_matches = 0;
154 ccb.cdm.match_buf_len = bufsize;
155 ccb.cdm.matches = calloc(1, bufsize);
157 bufsize = sizeof(struct dev_match_pattern) * 1;
158 ccb.cdm.num_patterns = 1;
159 ccb.cdm.pattern_buf_len = bufsize;
160 ccb.cdm.patterns = calloc(1, bufsize);
162 /* Look for a "da" device at the specified target and lun. */
163 ccb.cdm.patterns[0].type = DEV_MATCH_PERIPH;
164 p = &ccb.cdm.patterns[0].pattern.periph_pattern;
165 p->path_id = path_id;
166 snprintf(p->periph_name, sizeof(p->periph_name), "da");
167 p->target_id = VolumeID;
168 p->flags = PERIPH_MATCH_PATH | PERIPH_MATCH_NAME | PERIPH_MATCH_TARGET;
170 if (ioctl(xptfd, CAMIOCOMMAND, &ccb) < 0) {
172 free(ccb.cdm.matches);
173 free(ccb.cdm.patterns);
176 free(ccb.cdm.patterns);
178 if (((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) ||
179 (ccb.cdm.status != CAM_DEV_MATCH_LAST)) {
180 warnx("mpt_query_disk got CAM error %#x, CDM error %d\n",
181 ccb.ccb_h.status, ccb.cdm.status);
182 free(ccb.cdm.matches);
187 * We should have exactly 1 match for the peripheral.
188 * However, if we don't get a match, don't print an error
189 * message and return ENOENT.
191 if (ccb.cdm.num_matches == 0) {
192 free(ccb.cdm.matches);
195 if (ccb.cdm.num_matches != 1) {
196 warnx("mpt_query_disk got %d matches, expected 1",
197 ccb.cdm.num_matches);
198 free(ccb.cdm.matches);
201 if (ccb.cdm.matches[0].type != DEV_MATCH_PERIPH) {
202 warnx("mpt_query_disk got wrong CAM match");
203 free(ccb.cdm.matches);
207 /* Copy out the data. */
208 r = &ccb.cdm.matches[1].result.periph_result;
209 snprintf(qd->devname, sizeof(qd->devname), "%s%d", r->periph_name,
211 free(ccb.cdm.matches);
217 periph_is_volume(CONFIG_PAGE_IOC_2 *ioc2, struct periph_match_result *r)
219 CONFIG_PAGE_IOC_2_RAID_VOL *vol;
224 vol = ioc2->RaidVolume;
225 for (i = 0; i < ioc2->NumActiveVolumes; vol++, i++) {
226 if (vol->VolumeBus == 0 && vol->VolumeID == r->target_id)
232 /* Much borrowed from scsireadcapacity() in src/sbin/camcontrol/camcontrol.c. */
234 fetch_scsi_capacity(struct cam_device *dev, struct mpt_standalone_disk *disk)
236 struct scsi_read_capacity_data rcap;
237 struct scsi_read_capacity_data_long rcaplong;
241 ccb = cam_getccb(dev);
245 /* Zero the rest of the ccb. */
246 CCB_CLEAR_ALL_EXCEPT_HDR(&ccb->csio);
248 scsi_read_capacity(&ccb->csio, 1, NULL, MSG_SIMPLE_Q_TAG, &rcap,
249 SSD_FULL_SIZE, 5000);
251 /* Disable freezing the device queue */
252 ccb->ccb_h.flags |= CAM_DEV_QFRZDIS;
254 if (cam_send_ccb(dev, ccb) < 0) {
260 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
266 * A last block of 2^32-1 means that the true capacity is over 2TB,
267 * and we need to issue the long READ CAPACITY to get the real
268 * capacity. Otherwise, we're all set.
270 if (scsi_4btoul(rcap.addr) != 0xffffffff) {
271 disk->maxlba = scsi_4btoul(rcap.addr);
276 /* Zero the rest of the ccb. */
277 CCB_CLEAR_ALL_EXCEPT_HDR(&ccb->csio);
279 scsi_read_capacity_16(&ccb->csio, 1, NULL, MSG_SIMPLE_Q_TAG, 0, 0, 0,
280 (uint8_t *)&rcaplong, sizeof(rcaplong), SSD_FULL_SIZE, 5000);
282 /* Disable freezing the device queue */
283 ccb->ccb_h.flags |= CAM_DEV_QFRZDIS;
285 if (cam_send_ccb(dev, ccb) < 0) {
291 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
297 disk->maxlba = scsi_8btou64(rcaplong.addr);
301 /* Borrowed heavily from scsi_all.c:scsi_print_inquiry(). */
303 format_scsi_inquiry(struct mpt_standalone_disk *disk,
304 struct scsi_inquiry_data *inq_data)
306 char vendor[16], product[48], revision[16], rstr[12];
308 if (SID_QUAL_IS_VENDOR_UNIQUE(inq_data))
310 if (SID_TYPE(inq_data) != T_DIRECT)
312 if (SID_QUAL(inq_data) != SID_QUAL_LU_CONNECTED)
315 cam_strvis(vendor, inq_data->vendor, sizeof(inq_data->vendor),
317 cam_strvis(product, inq_data->product, sizeof(inq_data->product),
319 cam_strvis(revision, inq_data->revision, sizeof(inq_data->revision),
322 /* Hack for SATA disks, no idea how to tell speed. */
323 if (strcmp(vendor, "ATA") == 0) {
324 snprintf(disk->inqstring, sizeof(disk->inqstring),
325 "<%s %s> SATA", product, revision);
329 switch (SID_ANSI_REV(inq_data)) {
331 strcpy(rstr, "SCSI-CCS");
337 snprintf(rstr, sizeof (rstr), "SCSI-%d",
338 SID_ANSI_REV(inq_data));
341 snprintf(disk->inqstring, sizeof(disk->inqstring), "<%s %s %s> %s",
342 vendor, product, revision, rstr);
345 /* Much borrowed from scsiinquiry() in src/sbin/camcontrol/camcontrol.c. */
347 fetch_scsi_inquiry(struct cam_device *dev, struct mpt_standalone_disk *disk)
349 struct scsi_inquiry_data *inq_buf;
353 ccb = cam_getccb(dev);
357 /* Zero the rest of the ccb. */
358 CCB_CLEAR_ALL_EXCEPT_HDR(&ccb->csio);
360 inq_buf = calloc(1, sizeof(*inq_buf));
361 if (inq_buf == NULL) {
365 scsi_inquiry(&ccb->csio, 1, NULL, MSG_SIMPLE_Q_TAG, (void *)inq_buf,
366 SHORT_INQUIRY_LENGTH, 0, 0, SSD_FULL_SIZE, 5000);
368 /* Disable freezing the device queue */
369 ccb->ccb_h.flags |= CAM_DEV_QFRZDIS;
371 if (cam_send_ccb(dev, ccb) < 0) {
378 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
385 format_scsi_inquiry(disk, inq_buf);
391 mpt_fetch_disks(int fd, int *ndisks, struct mpt_standalone_disk **disksp)
393 CONFIG_PAGE_IOC_2 *ioc2;
394 struct mpt_standalone_disk *disks;
395 struct periph_match_pattern *p;
396 struct periph_match_result *r;
397 struct cam_device *dev;
407 error = fetch_path_id(&path_id);
411 for (count = 100;; count+= 100) {
412 /* Try to fetch 'count' disks in one go. */
413 bzero(&ccb, sizeof(ccb));
415 ccb.ccb_h.func_code = XPT_DEV_MATCH;
417 bufsize = sizeof(struct dev_match_result) * (count + 1);
418 ccb.cdm.num_matches = 0;
419 ccb.cdm.match_buf_len = bufsize;
420 ccb.cdm.matches = calloc(1, bufsize);
422 bufsize = sizeof(struct dev_match_pattern) * 1;
423 ccb.cdm.num_patterns = 1;
424 ccb.cdm.pattern_buf_len = bufsize;
425 ccb.cdm.patterns = calloc(1, bufsize);
427 /* Match any "da" peripherals. */
428 ccb.cdm.patterns[0].type = DEV_MATCH_PERIPH;
429 p = &ccb.cdm.patterns[0].pattern.periph_pattern;
430 p->path_id = path_id;
431 snprintf(p->periph_name, sizeof(p->periph_name), "da");
432 p->flags = PERIPH_MATCH_PATH | PERIPH_MATCH_NAME;
434 if (ioctl(xptfd, CAMIOCOMMAND, &ccb) < 0) {
436 free(ccb.cdm.matches);
437 free(ccb.cdm.patterns);
440 free(ccb.cdm.patterns);
442 /* Check for CCB errors. */
443 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
444 free(ccb.cdm.matches);
448 /* If we need a longer list, try again. */
449 if (ccb.cdm.status == CAM_DEV_MATCH_MORE) {
450 free(ccb.cdm.matches);
454 /* If we got an error, abort. */
455 if (ccb.cdm.status != CAM_DEV_MATCH_LAST) {
456 free(ccb.cdm.matches);
462 /* Shortcut if we don't have any "da" devices. */
463 if (ccb.cdm.num_matches == 0) {
464 free(ccb.cdm.matches);
470 /* We should have N matches, 1 for each "da" device. */
471 for (i = 0; i < ccb.cdm.num_matches; i++) {
472 if (ccb.cdm.matches[i].type != DEV_MATCH_PERIPH) {
473 warnx("mpt_fetch_disks got wrong CAM matches");
474 free(ccb.cdm.matches);
480 * Some of the "da" peripherals may be for RAID volumes, so
481 * fetch the IOC 2 page (list of RAID volumes) so we can
482 * exclude them from the list.
484 ioc2 = mpt_read_ioc_page(fd, 2, NULL);
487 disks = calloc(ccb.cdm.num_matches, sizeof(*disks));
489 for (i = 0; i < ccb.cdm.num_matches; i++) {
490 r = &ccb.cdm.matches[i].result.periph_result;
491 if (periph_is_volume(ioc2, r))
493 disks[count].bus = 0;
494 disks[count].target = r->target_id;
495 snprintf(disks[count].devname, sizeof(disks[count].devname),
496 "%s%d", r->periph_name, r->unit_number);
498 dev = cam_open_device(disks[count].devname, O_RDWR);
500 fetch_scsi_capacity(dev, &disks[count]);
501 fetch_scsi_inquiry(dev, &disks[count]);
502 cam_close_device(dev);
506 free(ccb.cdm.matches);
515 * Instruct the mpt(4) device to rescan its buses to find new devices
516 * such as disks whose RAID physdisk page was removed or volumes that
517 * were created. If id is -1, the entire bus is rescanned.
518 * Otherwise, only devices at the specified ID are rescanned. If bus
519 * is -1, then all buses are scanned instead of the specified bus.
520 * Note that currently, only bus 0 is supported.
523 mpt_rescan_bus(int bus, int id)
529 /* mpt(4) only handles devices on bus 0. */
530 if (bus != -1 && bus != 0)
536 error = fetch_path_id(&path_id);
540 /* Perform the actual rescan. */
541 bzero(&ccb, sizeof(ccb));
542 ccb.ccb_h.path_id = path_id;
544 ccb.ccb_h.func_code = XPT_SCAN_BUS;
545 ccb.ccb_h.target_id = CAM_TARGET_WILDCARD;
546 ccb.ccb_h.target_lun = CAM_LUN_WILDCARD;
547 ccb.ccb_h.timeout = 5000;
549 ccb.ccb_h.func_code = XPT_SCAN_LUN;
550 ccb.ccb_h.target_id = id;
551 ccb.ccb_h.target_lun = 0;
553 ccb.crcn.flags = CAM_FLAG_NONE;
555 /* Run this at a low priority. */
556 ccb.ccb_h.pinfo.priority = 5;
558 if (ioctl(xptfd, CAMIOCOMMAND, &ccb) == -1)
561 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
562 warnx("mpt_rescan_bus rescan got CAM error %#x\n",
563 ccb.ccb_h.status & CAM_STATUS_MASK);