2 * Copyright (c) 2008 Yahoo!, Inc.
4 * Written by: John Baldwin <jhb@FreeBSD.org>
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 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. Neither the name of the author nor the names of any co-contributors
15 * may be used to endorse or promote products derived from this software
16 * without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #include <sys/cdefs.h>
34 #include <sys/param.h>
43 #include <cam/scsi/scsi_message.h>
44 #include <cam/scsi/scsi_pass.h>
55 xptfd = open(XPT_DEVICE, O_RDWR);
59 /* Fetch the path id of bus 0 for the opened mpt controller. */
61 fetch_path_id(path_id_t *path_id)
63 struct bus_match_pattern *b;
70 /* First, find the path id of bus 0 for this mpt controller. */
71 bzero(&ccb, sizeof(ccb));
73 ccb.ccb_h.func_code = XPT_DEV_MATCH;
75 bufsize = sizeof(struct dev_match_result) * 1;
76 ccb.cdm.num_matches = 0;
77 ccb.cdm.match_buf_len = bufsize;
78 ccb.cdm.matches = calloc(1, bufsize);
80 bufsize = sizeof(struct dev_match_pattern) * 1;
81 ccb.cdm.num_patterns = 1;
82 ccb.cdm.pattern_buf_len = bufsize;
83 ccb.cdm.patterns = calloc(1, bufsize);
85 /* Match mptX bus 0. */
86 ccb.cdm.patterns[0].type = DEV_MATCH_BUS;
87 b = &ccb.cdm.patterns[0].pattern.bus_pattern;
88 snprintf(b->dev_name, sizeof(b->dev_name), "mpt");
89 b->unit_number = mpt_unit;
91 b->flags = BUS_MATCH_NAME | BUS_MATCH_UNIT | BUS_MATCH_BUS_ID;
93 if (ioctl(xptfd, CAMIOCOMMAND, &ccb) < 0) {
94 free(ccb.cdm.matches);
95 free(ccb.cdm.patterns);
98 free(ccb.cdm.patterns);
100 if (((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) ||
101 (ccb.cdm.status != CAM_DEV_MATCH_LAST)) {
102 warnx("fetch_path_id got CAM error %#x, CDM error %d\n",
103 ccb.ccb_h.status, ccb.cdm.status);
104 free(ccb.cdm.matches);
108 /* We should have exactly 1 match for the bus. */
109 if (ccb.cdm.num_matches != 1 ||
110 ccb.cdm.matches[0].type != DEV_MATCH_BUS) {
111 free(ccb.cdm.matches);
114 *path_id = ccb.cdm.matches[0].result.bus_result.path_id;
115 free(ccb.cdm.matches);
120 mpt_query_disk(U8 VolumeBus, U8 VolumeID, struct mpt_query_disk *qd)
122 struct periph_match_pattern *p;
123 struct periph_match_result *r;
129 /* mpt(4) only handles devices on bus 0. */
136 /* Find the path ID of bus 0. */
137 error = fetch_path_id(&path_id);
141 bzero(&ccb, sizeof(ccb));
143 ccb.ccb_h.func_code = XPT_DEV_MATCH;
144 ccb.ccb_h.path_id = CAM_XPT_PATH_ID;
145 ccb.ccb_h.target_id = CAM_TARGET_WILDCARD;
146 ccb.ccb_h.target_lun = CAM_LUN_WILDCARD;
148 bufsize = sizeof(struct dev_match_result) * 5;
149 ccb.cdm.num_matches = 0;
150 ccb.cdm.match_buf_len = bufsize;
151 ccb.cdm.matches = calloc(1, bufsize);
153 bufsize = sizeof(struct dev_match_pattern) * 1;
154 ccb.cdm.num_patterns = 1;
155 ccb.cdm.pattern_buf_len = bufsize;
156 ccb.cdm.patterns = calloc(1, bufsize);
158 /* Look for a "da" device at the specified target and lun. */
159 ccb.cdm.patterns[0].type = DEV_MATCH_PERIPH;
160 p = &ccb.cdm.patterns[0].pattern.periph_pattern;
161 p->path_id = path_id;
162 snprintf(p->periph_name, sizeof(p->periph_name), "da");
163 p->target_id = VolumeID;
164 p->flags = PERIPH_MATCH_PATH | PERIPH_MATCH_NAME | PERIPH_MATCH_TARGET;
166 if (ioctl(xptfd, CAMIOCOMMAND, &ccb) < 0) {
168 free(ccb.cdm.matches);
169 free(ccb.cdm.patterns);
172 free(ccb.cdm.patterns);
174 if (((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) ||
175 (ccb.cdm.status != CAM_DEV_MATCH_LAST)) {
176 warnx("mpt_query_disk got CAM error %#x, CDM error %d\n",
177 ccb.ccb_h.status, ccb.cdm.status);
178 free(ccb.cdm.matches);
183 * We should have exactly 1 match for the peripheral.
184 * However, if we don't get a match, don't print an error
185 * message and return ENOENT.
187 if (ccb.cdm.num_matches == 0) {
188 free(ccb.cdm.matches);
191 if (ccb.cdm.num_matches != 1) {
192 warnx("mpt_query_disk got %d matches, expected 1",
193 ccb.cdm.num_matches);
194 free(ccb.cdm.matches);
197 if (ccb.cdm.matches[0].type != DEV_MATCH_PERIPH) {
198 warnx("mpt_query_disk got wrong CAM match");
199 free(ccb.cdm.matches);
203 /* Copy out the data. */
204 r = &ccb.cdm.matches[1].result.periph_result;
205 snprintf(qd->devname, sizeof(qd->devname), "%s%d", r->periph_name,
207 free(ccb.cdm.matches);
213 periph_is_volume(CONFIG_PAGE_IOC_2 *ioc2, struct periph_match_result *r)
215 CONFIG_PAGE_IOC_2_RAID_VOL *vol;
220 vol = ioc2->RaidVolume;
221 for (i = 0; i < ioc2->NumActiveVolumes; vol++, i++) {
222 if (vol->VolumeBus == 0 && vol->VolumeID == r->target_id)
228 /* Much borrowed from scsireadcapacity() in src/sbin/camcontrol/camcontrol.c. */
230 fetch_scsi_capacity(struct cam_device *dev, struct mpt_standalone_disk *disk)
232 struct scsi_read_capacity_data rcap;
233 struct scsi_read_capacity_data_long rcaplong;
237 ccb = cam_getccb(dev);
241 /* Zero the rest of the ccb. */
242 bzero(&(&ccb->ccb_h)[1], sizeof(struct ccb_scsiio) -
243 sizeof(struct ccb_hdr));
245 scsi_read_capacity(&ccb->csio, 1, NULL, MSG_SIMPLE_Q_TAG, &rcap,
246 SSD_FULL_SIZE, 5000);
248 /* Disable freezing the device queue */
249 ccb->ccb_h.flags |= CAM_DEV_QFRZDIS;
251 if (cam_send_ccb(dev, ccb) < 0) {
257 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
264 * A last block of 2^32-1 means that the true capacity is over 2TB,
265 * and we need to issue the long READ CAPACITY to get the real
266 * capacity. Otherwise, we're all set.
268 if (scsi_4btoul(rcap.addr) != 0xffffffff) {
269 disk->maxlba = scsi_4btoul(rcap.addr);
273 /* Zero the rest of the ccb. */
274 bzero(&(&ccb->ccb_h)[1], sizeof(struct ccb_scsiio) -
275 sizeof(struct ccb_hdr));
277 scsi_read_capacity_16(&ccb->csio, 1, NULL, MSG_SIMPLE_Q_TAG, 0, 0, 0,
278 &rcaplong, SSD_FULL_SIZE, 5000);
280 /* Disable freezing the device queue */
281 ccb->ccb_h.flags |= CAM_DEV_QFRZDIS;
283 if (cam_send_ccb(dev, ccb) < 0) {
289 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
295 disk->maxlba = scsi_8btou64(rcaplong.addr);
299 /* Borrowed heavily from scsi_all.c:scsi_print_inquiry(). */
301 format_scsi_inquiry(struct mpt_standalone_disk *disk,
302 struct scsi_inquiry_data *inq_data)
304 char vendor[16], product[48], revision[16], rstr[12];
306 if (SID_QUAL_IS_VENDOR_UNIQUE(inq_data))
308 if (SID_TYPE(inq_data) != T_DIRECT)
310 if (SID_QUAL(inq_data) != SID_QUAL_LU_CONNECTED)
313 cam_strvis(vendor, inq_data->vendor, sizeof(inq_data->vendor),
315 cam_strvis(product, inq_data->product, sizeof(inq_data->product),
317 cam_strvis(revision, inq_data->revision, sizeof(inq_data->revision),
320 /* Hack for SATA disks, no idea how to tell speed. */
321 if (strcmp(vendor, "ATA") == 0) {
322 snprintf(disk->inqstring, sizeof(disk->inqstring),
323 "<%s %s> SATA", product, revision);
327 switch (SID_ANSI_REV(inq_data)) {
329 strcpy(rstr, "SCSI-CCS");
335 snprintf(rstr, sizeof (rstr), "SCSI-%d",
336 SID_ANSI_REV(inq_data));
339 snprintf(disk->inqstring, sizeof(disk->inqstring), "<%s %s %s> %s",
340 vendor, product, revision, rstr);
343 /* Much borrowed from scsiinquiry() in src/sbin/camcontrol/camcontrol.c. */
345 fetch_scsi_inquiry(struct cam_device *dev, struct mpt_standalone_disk *disk)
347 struct scsi_inquiry_data *inq_buf;
351 ccb = cam_getccb(dev);
355 /* Zero the rest of the ccb. */
356 bzero(&(&ccb->ccb_h)[1], sizeof(struct ccb_scsiio) -
357 sizeof(struct ccb_hdr));
359 inq_buf = calloc(1, sizeof(*inq_buf));
360 if (inq_buf == NULL) {
364 scsi_inquiry(&ccb->csio, 1, NULL, MSG_SIMPLE_Q_TAG, (void *)inq_buf,
365 SHORT_INQUIRY_LENGTH, 0, 0, SSD_FULL_SIZE, 5000);
367 /* Disable freezing the device queue */
368 ccb->ccb_h.flags |= CAM_DEV_QFRZDIS;
370 if (cam_send_ccb(dev, ccb) < 0) {
377 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
384 format_scsi_inquiry(disk, inq_buf);
390 mpt_fetch_disks(int fd, int *ndisks, struct mpt_standalone_disk **disksp)
392 CONFIG_PAGE_IOC_2 *ioc2;
393 struct mpt_standalone_disk *disks;
394 struct periph_match_pattern *p;
395 struct periph_match_result *r;
396 struct cam_device *dev;
406 error = fetch_path_id(&path_id);
410 for (count = 100;; count+= 100) {
411 /* Try to fetch 'count' disks in one go. */
412 bzero(&ccb, sizeof(ccb));
414 ccb.ccb_h.func_code = XPT_DEV_MATCH;
416 bufsize = sizeof(struct dev_match_result) * (count + 1);
417 ccb.cdm.num_matches = 0;
418 ccb.cdm.match_buf_len = bufsize;
419 ccb.cdm.matches = calloc(1, bufsize);
421 bufsize = sizeof(struct dev_match_pattern) * 1;
422 ccb.cdm.num_patterns = 1;
423 ccb.cdm.pattern_buf_len = bufsize;
424 ccb.cdm.patterns = calloc(1, bufsize);
426 /* Match any "da" peripherals. */
427 ccb.cdm.patterns[0].type = DEV_MATCH_PERIPH;
428 p = &ccb.cdm.patterns[0].pattern.periph_pattern;
429 p->path_id = path_id;
430 snprintf(p->periph_name, sizeof(p->periph_name), "da");
431 p->flags = PERIPH_MATCH_PATH | PERIPH_MATCH_NAME;
433 if (ioctl(xptfd, CAMIOCOMMAND, &ccb) < 0) {
435 free(ccb.cdm.matches);
436 free(ccb.cdm.patterns);
439 free(ccb.cdm.patterns);
441 /* Check for CCB errors. */
442 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
443 free(ccb.cdm.matches);
447 /* If we need a longer list, try again. */
448 if (ccb.cdm.status == CAM_DEV_MATCH_MORE) {
449 free(ccb.cdm.matches);
453 /* If we got an error, abort. */
454 if (ccb.cdm.status != CAM_DEV_MATCH_LAST) {
455 free(ccb.cdm.matches);
461 /* Shortcut if we don't have any "da" devices. */
462 if (ccb.cdm.num_matches == 0) {
463 free(ccb.cdm.matches);
469 /* We should have N matches, 1 for each "da" device. */
470 for (i = 0; i < ccb.cdm.num_matches; i++) {
471 if (ccb.cdm.matches[i].type != DEV_MATCH_PERIPH) {
472 warnx("mpt_fetch_disks got wrong CAM matches");
473 free(ccb.cdm.matches);
479 * Some of the "da" peripherals may be for RAID volumes, so
480 * fetch the IOC 2 page (list of RAID volumes) so we can
481 * exclude them from the list.
483 ioc2 = mpt_read_ioc_page(fd, 2, NULL);
484 disks = calloc(ccb.cdm.num_matches, sizeof(*disks));
486 for (i = 0; i < ccb.cdm.num_matches; i++) {
487 r = &ccb.cdm.matches[i].result.periph_result;
488 if (periph_is_volume(ioc2, r))
490 disks[count].bus = 0;
491 disks[count].target = r->target_id;
492 snprintf(disks[count].devname, sizeof(disks[count].devname),
493 "%s%d", r->periph_name, r->unit_number);
495 dev = cam_open_device(disks[count].devname, O_RDWR);
497 fetch_scsi_capacity(dev, &disks[count]);
498 fetch_scsi_inquiry(dev, &disks[count]);
499 cam_close_device(dev);
503 free(ccb.cdm.matches);
512 * Instruct the mpt(4) device to rescan its busses to find new devices
513 * such as disks whose RAID physdisk page was removed or volumes that
514 * were created. If id is -1, the entire bus is rescanned.
515 * Otherwise, only devices at the specified ID are rescanned. If bus
516 * is -1, then all busses are scanned instead of the specified bus.
517 * Note that currently, only bus 0 is supported.
520 mpt_rescan_bus(int bus, int id)
526 /* mpt(4) only handles devices on bus 0. */
527 if (bus != -1 && bus != 0)
533 error = fetch_path_id(&path_id);
537 /* Perform the actual rescan. */
538 bzero(&ccb, sizeof(ccb));
539 ccb.ccb_h.path_id = path_id;
541 ccb.ccb_h.func_code = XPT_SCAN_BUS;
542 ccb.ccb_h.target_id = CAM_TARGET_WILDCARD;
543 ccb.ccb_h.target_lun = CAM_LUN_WILDCARD;
544 ccb.ccb_h.timeout = 5000;
546 ccb.ccb_h.func_code = XPT_SCAN_LUN;
547 ccb.ccb_h.target_id = id;
548 ccb.ccb_h.target_lun = 0;
550 ccb.crcn.flags = CAM_FLAG_NONE;
552 /* Run this at a low priority. */
553 ccb.ccb_h.pinfo.priority = 5;
555 if (ioctl(xptfd, CAMIOCOMMAND, &ccb) == -1)
558 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
559 warnx("mpt_rescan_bus rescan got CAM error %#x\n",
560 ccb.ccb_h.status & CAM_STATUS_MASK);