1 /*-
2 * Copyright (c) 2011 Alexander Motin <mav@FreeBSD.org>
3 * Copyright (c) 2000 - 2008 Søren Schmidt <sos@FreeBSD.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
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 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD: releng/9.1/sys/geom/raid/md_nvidia.c 240558 2012-09-16 11:02:22Z mav $");
30
31 #include <sys/param.h>
32 #include <sys/bio.h>
33 #include <sys/endian.h>
34 #include <sys/kernel.h>
35 #include <sys/kobj.h>
36 #include <sys/limits.h>
37 #include <sys/lock.h>
38 #include <sys/malloc.h>
39 #include <sys/mutex.h>
40 #include <sys/systm.h>
41 #include <sys/taskqueue.h>
42 #include <geom/geom.h>
43 #include "geom/raid/g_raid.h"
44 #include "g_raid_md_if.h"
45
46 static MALLOC_DEFINE(M_MD_NVIDIA, "md_nvidia_data", "GEOM_RAID NVIDIA metadata");
47
48 struct nvidia_raid_conf {
49 uint8_t nvidia_id[8];
50 #define NVIDIA_MAGIC "NVIDIA "
51
52 uint32_t config_size;
53 uint32_t checksum;
54 uint16_t version;
55 uint8_t disk_number;
56 uint8_t dummy_0;
57 uint32_t total_sectors;
58 uint32_t sector_size;
59 uint8_t name[16];
60 uint8_t revision[4];
61 uint32_t disk_status;
62
63 uint32_t magic_0;
64 #define NVIDIA_MAGIC0 0x00640044
65
66 uint64_t volume_id[2];
67 uint8_t state;
68 #define NVIDIA_S_IDLE 0
69 #define NVIDIA_S_INIT 2
70 #define NVIDIA_S_REBUILD 3
71 #define NVIDIA_S_UPGRADE 4
72 #define NVIDIA_S_SYNC 5
73 uint8_t array_width;
74 uint8_t total_disks;
75 uint8_t orig_array_width;
76 uint16_t type;
77 #define NVIDIA_T_RAID0 0x0080
78 #define NVIDIA_T_RAID1 0x0081
79 #define NVIDIA_T_RAID3 0x0083
80 #define NVIDIA_T_RAID5 0x0085 /* RLQ = 00/02? */
81 #define NVIDIA_T_RAID5_SYM 0x0095 /* RLQ = 03 */
82 #define NVIDIA_T_RAID10 0x008a
83 #define NVIDIA_T_RAID01 0x8180
84 #define NVIDIA_T_CONCAT 0x00ff
85
86 uint16_t dummy_3;
87 uint32_t strip_sectors;
88 uint32_t strip_bytes;
89 uint32_t strip_shift;
90 uint32_t strip_mask;
91 uint32_t stripe_sectors;
92 uint32_t stripe_bytes;
93 uint32_t rebuild_lba;
94 uint32_t orig_type;
95 uint32_t orig_total_sectors;
96 uint32_t status;
97 #define NVIDIA_S_BOOTABLE 0x00000001
98 #define NVIDIA_S_DEGRADED 0x00000002
99
100 uint32_t filler[98];
101 } __packed;
102
103 struct g_raid_md_nvidia_perdisk {
104 struct nvidia_raid_conf *pd_meta;
105 int pd_disk_pos;
106 off_t pd_disk_size;
107 };
108
109 struct g_raid_md_nvidia_object {
110 struct g_raid_md_object mdio_base;
111 uint64_t mdio_volume_id[2];
112 struct nvidia_raid_conf *mdio_meta;
113 struct callout mdio_start_co; /* STARTING state timer. */
114 int mdio_total_disks;
115 int mdio_disks_present;
116 int mdio_started;
117 int mdio_incomplete;
118 struct root_hold_token *mdio_rootmount; /* Root mount delay token. */
119 };
120
121 static g_raid_md_create_t g_raid_md_create_nvidia;
122 static g_raid_md_taste_t g_raid_md_taste_nvidia;
123 static g_raid_md_event_t g_raid_md_event_nvidia;
124 static g_raid_md_ctl_t g_raid_md_ctl_nvidia;
125 static g_raid_md_write_t g_raid_md_write_nvidia;
126 static g_raid_md_fail_disk_t g_raid_md_fail_disk_nvidia;
127 static g_raid_md_free_disk_t g_raid_md_free_disk_nvidia;
128 static g_raid_md_free_t g_raid_md_free_nvidia;
129
130 static kobj_method_t g_raid_md_nvidia_methods[] = {
131 KOBJMETHOD(g_raid_md_create, g_raid_md_create_nvidia),
132 KOBJMETHOD(g_raid_md_taste, g_raid_md_taste_nvidia),
133 KOBJMETHOD(g_raid_md_event, g_raid_md_event_nvidia),
134 KOBJMETHOD(g_raid_md_ctl, g_raid_md_ctl_nvidia),
135 KOBJMETHOD(g_raid_md_write, g_raid_md_write_nvidia),
136 KOBJMETHOD(g_raid_md_fail_disk, g_raid_md_fail_disk_nvidia),
137 KOBJMETHOD(g_raid_md_free_disk, g_raid_md_free_disk_nvidia),
138 KOBJMETHOD(g_raid_md_free, g_raid_md_free_nvidia),
139 { 0, 0 }
140 };
141
142 static struct g_raid_md_class g_raid_md_nvidia_class = {
143 "NVIDIA",
144 g_raid_md_nvidia_methods,
145 sizeof(struct g_raid_md_nvidia_object),
146 .mdc_enable = 1,
147 .mdc_priority = 100
148 };
149
150 static int NVIDIANodeID = 1;
151
152 static void
153 g_raid_md_nvidia_print(struct nvidia_raid_conf *meta)
154 {
155
156 if (g_raid_debug < 1)
157 return;
158
159 printf("********* ATA NVIDIA RAID Metadata *********\n");
160 printf("nvidia_id <%.8s>\n", meta->nvidia_id);
161 printf("config_size %u\n", meta->config_size);
162 printf("checksum 0x%08x\n", meta->checksum);
163 printf("version 0x%04x\n", meta->version);
164 printf("disk_number %d\n", meta->disk_number);
165 printf("dummy_0 0x%02x\n", meta->dummy_0);
166 printf("total_sectors %u\n", meta->total_sectors);
167 printf("sector_size %u\n", meta->sector_size);
168 printf("name <%.16s>\n", meta->name);
169 printf("revision 0x%02x%02x%02x%02x\n",
170 meta->revision[0], meta->revision[1],
171 meta->revision[2], meta->revision[3]);
172 printf("disk_status 0x%08x\n", meta->disk_status);
173 printf("magic_0 0x%08x\n", meta->magic_0);
174 printf("volume_id 0x%016jx%016jx\n",
175 meta->volume_id[1], meta->volume_id[0]);
176 printf("state 0x%02x\n", meta->state);
177 printf("array_width %u\n", meta->array_width);
178 printf("total_disks %u\n", meta->total_disks);
179 printf("orig_array_width %u\n", meta->orig_array_width);
180 printf("type 0x%04x\n", meta->type);
181 printf("dummy_3 0x%04x\n", meta->dummy_3);
182 printf("strip_sectors %u\n", meta->strip_sectors);
183 printf("strip_bytes %u\n", meta->strip_bytes);
184 printf("strip_shift %u\n", meta->strip_shift);
185 printf("strip_mask 0x%08x\n", meta->strip_mask);
186 printf("stripe_sectors %u\n", meta->stripe_sectors);
187 printf("stripe_bytes %u\n", meta->stripe_bytes);
188 printf("rebuild_lba %u\n", meta->rebuild_lba);
189 printf("orig_type 0x%04x\n", meta->orig_type);
190 printf("orig_total_sectors %u\n", meta->orig_total_sectors);
191 printf("status 0x%08x\n", meta->status);
192 printf("=================================================\n");
193 }
194
195 static struct nvidia_raid_conf *
196 nvidia_meta_copy(struct nvidia_raid_conf *meta)
197 {
198 struct nvidia_raid_conf *nmeta;
199
200 nmeta = malloc(sizeof(*meta), M_MD_NVIDIA, M_WAITOK);
201 memcpy(nmeta, meta, sizeof(*meta));
202 return (nmeta);
203 }
204
205 static int
206 nvidia_meta_translate_disk(struct nvidia_raid_conf *meta, int md_disk_pos)
207 {
208 int disk_pos;
209
210 if (md_disk_pos >= 0 && meta->type == NVIDIA_T_RAID01) {
211 disk_pos = (md_disk_pos / meta->array_width) +
212 (md_disk_pos % meta->array_width) * meta->array_width;
213 } else
214 disk_pos = md_disk_pos;
215 return (disk_pos);
216 }
217
218 static void
219 nvidia_meta_get_name(struct nvidia_raid_conf *meta, char *buf)
220 {
221 int i;
222
223 strncpy(buf, meta->name, 16);
224 buf[16] = 0;
225 for (i = 15; i >= 0; i--) {
226 if (buf[i] > 0x20)
227 break;
228 buf[i] = 0;
229 }
230 }
231
232 static void
233 nvidia_meta_put_name(struct nvidia_raid_conf *meta, char *buf)
234 {
235
236 memset(meta->name, 0x20, 16);
237 memcpy(meta->name, buf, MIN(strlen(buf), 16));
238 }
239
240 static struct nvidia_raid_conf *
241 nvidia_meta_read(struct g_consumer *cp)
242 {
243 struct g_provider *pp;
244 struct nvidia_raid_conf *meta;
245 char *buf;
246 int error, i;
247 uint32_t checksum, *ptr;
248
249 pp = cp->provider;
250
251 /* Read the anchor sector. */
252 buf = g_read_data(cp,
253 pp->mediasize - 2 * pp->sectorsize, pp->sectorsize, &error);
254 if (buf == NULL) {
255 G_RAID_DEBUG(1, "Cannot read metadata from %s (error=%d).",
256 pp->name, error);
257 return (NULL);
258 }
259 meta = malloc(sizeof(*meta), M_MD_NVIDIA, M_WAITOK);
260 memcpy(meta, buf, min(sizeof(*meta), pp->sectorsize));
261 g_free(buf);
262
263 /* Check if this is an NVIDIA RAID struct */
264 if (strncmp(meta->nvidia_id, NVIDIA_MAGIC, strlen(NVIDIA_MAGIC))) {
265 G_RAID_DEBUG(1, "NVIDIA signature check failed on %s", pp->name);
266 free(meta, M_MD_NVIDIA);
267 return (NULL);
268 }
269 if (meta->config_size > 128 ||
270 meta->config_size < 30) {
271 G_RAID_DEBUG(1, "NVIDIA metadata size looks wrong: %d",
272 meta->config_size);
273 free(meta, M_MD_NVIDIA);
274 return (NULL);
275 }
276
277 /* Check metadata checksum. */
278 for (checksum = 0, ptr = (uint32_t *)meta,
279 i = 0; i < meta->config_size; i++)
280 checksum += *ptr++;
281 if (checksum != 0) {
282 G_RAID_DEBUG(1, "NVIDIA checksum check failed on %s", pp->name);
283 free(meta, M_MD_NVIDIA);
284 return (NULL);
285 }
286
287 /* Check volume state. */
288 if (meta->state != NVIDIA_S_IDLE && meta->state != NVIDIA_S_INIT &&
289 meta->state != NVIDIA_S_REBUILD && meta->state != NVIDIA_S_SYNC) {
290 G_RAID_DEBUG(1, "NVIDIA unknown state on %s (0x%02x)",
291 pp->name, meta->state);
292 free(meta, M_MD_NVIDIA);
293 return (NULL);
294 }
295
296 /* Check raid type. */
297 if (meta->type != NVIDIA_T_RAID0 && meta->type != NVIDIA_T_RAID1 &&
298 meta->type != NVIDIA_T_RAID3 && meta->type != NVIDIA_T_RAID5 &&
299 meta->type != NVIDIA_T_RAID5_SYM &&
300 meta->type != NVIDIA_T_RAID01 && meta->type != NVIDIA_T_CONCAT) {
301 G_RAID_DEBUG(1, "NVIDIA unknown RAID level on %s (0x%02x)",
302 pp->name, meta->type);
303 free(meta, M_MD_NVIDIA);
304 return (NULL);
305 }
306
307 return (meta);
308 }
309
310 static int
311 nvidia_meta_write(struct g_consumer *cp, struct nvidia_raid_conf *meta)
312 {
313 struct g_provider *pp;
314 char *buf;
315 int error, i;
316 uint32_t checksum, *ptr;
317
318 pp = cp->provider;
319
320 /* Recalculate checksum for case if metadata were changed. */
321 meta->checksum = 0;
322 for (checksum = 0, ptr = (uint32_t *)meta,
323 i = 0; i < meta->config_size; i++)
324 checksum += *ptr++;
325 meta->checksum -= checksum;
326
327 /* Create and fill buffer. */
328 buf = malloc(pp->sectorsize, M_MD_NVIDIA, M_WAITOK | M_ZERO);
329 memcpy(buf, meta, sizeof(*meta));
330
331 /* Write metadata. */
332 error = g_write_data(cp,
333 pp->mediasize - 2 * pp->sectorsize, buf, pp->sectorsize);
334 if (error != 0) {
335 G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).",
336 pp->name, error);
337 }
338
339 free(buf, M_MD_NVIDIA);
340 return (error);
341 }
342
343 static int
344 nvidia_meta_erase(struct g_consumer *cp)
345 {
346 struct g_provider *pp;
347 char *buf;
348 int error;
349
350 pp = cp->provider;
351 buf = malloc(pp->sectorsize, M_MD_NVIDIA, M_WAITOK | M_ZERO);
352 error = g_write_data(cp,
353 pp->mediasize - 2 * pp->sectorsize, buf, pp->sectorsize);
354 if (error != 0) {
355 G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).",
356 pp->name, error);
357 }
358 free(buf, M_MD_NVIDIA);
359 return (error);
360 }
361
362 static struct g_raid_disk *
363 g_raid_md_nvidia_get_disk(struct g_raid_softc *sc, int id)
364 {
365 struct g_raid_disk *disk;
366 struct g_raid_md_nvidia_perdisk *pd;
367
368 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
369 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data;
370 if (pd->pd_disk_pos == id)
371 break;
372 }
373 return (disk);
374 }
375
376 static int
377 g_raid_md_nvidia_supported(int level, int qual, int disks, int force)
378 {
379
380 switch (level) {
381 case G_RAID_VOLUME_RL_RAID0:
382 if (disks < 1)
383 return (0);
384 if (!force && (disks < 2 || disks > 6))
385 return (0);
386 break;
387 case G_RAID_VOLUME_RL_RAID1:
388 if (disks < 1)
389 return (0);
390 if (!force && (disks != 2))
391 return (0);
392 break;
393 case G_RAID_VOLUME_RL_RAID1E:
394 if (disks < 2)
395 return (0);
396 if (disks % 2 != 0)
397 return (0);
398 if (!force && (disks < 4))
399 return (0);
400 break;
401 case G_RAID_VOLUME_RL_SINGLE:
402 if (disks != 1)
403 return (0);
404 break;
405 case G_RAID_VOLUME_RL_CONCAT:
406 if (disks < 2)
407 return (0);
408 break;
409 case G_RAID_VOLUME_RL_RAID5:
410 if (disks < 3)
411 return (0);
412 if (qual != G_RAID_VOLUME_RLQ_R5LA &&
413 qual != G_RAID_VOLUME_RLQ_R5LS)
414 return (0);
415 break;
416 default:
417 return (0);
418 }
419 if (level != G_RAID_VOLUME_RL_RAID5 && qual != G_RAID_VOLUME_RLQ_NONE)
420 return (0);
421 return (1);
422 }
423
424 static int
425 g_raid_md_nvidia_start_disk(struct g_raid_disk *disk)
426 {
427 struct g_raid_softc *sc;
428 struct g_raid_subdisk *sd, *tmpsd;
429 struct g_raid_disk *olddisk, *tmpdisk;
430 struct g_raid_md_object *md;
431 struct g_raid_md_nvidia_object *mdi;
432 struct g_raid_md_nvidia_perdisk *pd, *oldpd;
433 struct nvidia_raid_conf *meta;
434 int disk_pos, resurrection = 0;
435
436 sc = disk->d_softc;
437 md = sc->sc_md;
438 mdi = (struct g_raid_md_nvidia_object *)md;
439 meta = mdi->mdio_meta;
440 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data;
441 olddisk = NULL;
442
443 /* Find disk position in metadata by it's serial. */
444 if (pd->pd_meta != NULL) {
445 disk_pos = pd->pd_meta->disk_number;
446 if (disk_pos >= meta->total_disks || mdi->mdio_started)
447 disk_pos = -3;
448 } else
449 disk_pos = -3;
450 /* For RAID0+1 we need to translate order. */
451 disk_pos = nvidia_meta_translate_disk(meta, disk_pos);
452 if (disk_pos < 0) {
453 G_RAID_DEBUG1(1, sc, "Unknown, probably new or stale disk");
454 /* If we are in the start process, that's all for now. */
455 if (!mdi->mdio_started)
456 goto nofit;
457 /*
458 * If we have already started - try to get use of the disk.
459 * Try to replace OFFLINE disks first, then FAILED.
460 */
461 TAILQ_FOREACH(tmpdisk, &sc->sc_disks, d_next) {
462 if (tmpdisk->d_state != G_RAID_DISK_S_OFFLINE &&
463 tmpdisk->d_state != G_RAID_DISK_S_FAILED)
464 continue;
465 /* Make sure this disk is big enough. */
466 TAILQ_FOREACH(sd, &tmpdisk->d_subdisks, sd_next) {
467 if (sd->sd_offset + sd->sd_size + 2 * 512 >
468 pd->pd_disk_size) {
469 G_RAID_DEBUG1(1, sc,
470 "Disk too small (%ju < %ju)",
471 pd->pd_disk_size,
472 sd->sd_offset + sd->sd_size + 512);
473 break;
474 }
475 }
476 if (sd != NULL)
477 continue;
478 if (tmpdisk->d_state == G_RAID_DISK_S_OFFLINE) {
479 olddisk = tmpdisk;
480 break;
481 } else if (olddisk == NULL)
482 olddisk = tmpdisk;
483 }
484 if (olddisk == NULL) {
485 nofit:
486 g_raid_change_disk_state(disk, G_RAID_DISK_S_SPARE);
487 return (1);
488 }
489 oldpd = (struct g_raid_md_nvidia_perdisk *)olddisk->d_md_data;
490 disk_pos = oldpd->pd_disk_pos;
491 resurrection = 1;
492 }
493
494 if (olddisk == NULL) {
495 /* Find placeholder by position. */
496 olddisk = g_raid_md_nvidia_get_disk(sc, disk_pos);
497 if (olddisk == NULL)
498 panic("No disk at position %d!", disk_pos);
499 if (olddisk->d_state != G_RAID_DISK_S_OFFLINE) {
500 G_RAID_DEBUG1(1, sc, "More then one disk for pos %d",
501 disk_pos);
502 g_raid_change_disk_state(disk, G_RAID_DISK_S_STALE);
503 return (0);
504 }
505 oldpd = (struct g_raid_md_nvidia_perdisk *)olddisk->d_md_data;
506 }
507
508 /* Replace failed disk or placeholder with new disk. */
509 TAILQ_FOREACH_SAFE(sd, &olddisk->d_subdisks, sd_next, tmpsd) {
510 TAILQ_REMOVE(&olddisk->d_subdisks, sd, sd_next);
511 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next);
512 sd->sd_disk = disk;
513 }
514 oldpd->pd_disk_pos = -2;
515 pd->pd_disk_pos = disk_pos;
516
517 /* If it was placeholder -- destroy it. */
518 if (olddisk->d_state == G_RAID_DISK_S_OFFLINE) {
519 g_raid_destroy_disk(olddisk);
520 } else {
521 /* Otherwise, make it STALE_FAILED. */
522 g_raid_change_disk_state(olddisk, G_RAID_DISK_S_STALE_FAILED);
523 }
524
525 /* Welcome the new disk. */
526 if (resurrection)
527 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE);
528 else// if (pd->pd_meta->disk_status == NVIDIA_S_CURRENT ||
529 //pd->pd_meta->disk_status == NVIDIA_S_REBUILD)
530 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE);
531 // else
532 // g_raid_change_disk_state(disk, G_RAID_DISK_S_FAILED);
533 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) {
534
535 /*
536 * Different disks may have different sizes,
537 * in concat mode. Update from real disk size.
538 */
539 if (meta->type == NVIDIA_T_CONCAT)
540 sd->sd_size = pd->pd_disk_size - 0x800 * 512;
541
542 if (resurrection) {
543 /* New or ex-spare disk. */
544 g_raid_change_subdisk_state(sd,
545 G_RAID_SUBDISK_S_NEW);
546 } else if (meta->state == NVIDIA_S_REBUILD &&
547 (pd->pd_meta->disk_status & 0x100)) {
548 /* Rebuilding disk. */
549 g_raid_change_subdisk_state(sd,
550 G_RAID_SUBDISK_S_REBUILD);
551 sd->sd_rebuild_pos = (off_t)pd->pd_meta->rebuild_lba /
552 meta->array_width * pd->pd_meta->sector_size;
553 } else if (meta->state == NVIDIA_S_SYNC) {
554 /* Resyncing/dirty disk. */
555 g_raid_change_subdisk_state(sd,
556 G_RAID_SUBDISK_S_RESYNC);
557 sd->sd_rebuild_pos = (off_t)pd->pd_meta->rebuild_lba /
558 meta->array_width * pd->pd_meta->sector_size;
559 } else {
560 /* Up to date disk. */
561 g_raid_change_subdisk_state(sd,
562 G_RAID_SUBDISK_S_ACTIVE);
563 }
564 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW,
565 G_RAID_EVENT_SUBDISK);
566 }
567
568 /* Update status of our need for spare. */
569 if (mdi->mdio_started) {
570 mdi->mdio_incomplete =
571 (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) <
572 mdi->mdio_total_disks);
573 }
574
575 return (resurrection);
576 }
577
578 static void
579 g_disk_md_nvidia_retaste(void *arg, int pending)
580 {
581
582 G_RAID_DEBUG(1, "Array is not complete, trying to retaste.");
583 g_retaste(&g_raid_class);
584 free(arg, M_MD_NVIDIA);
585 }
586
587 static void
588 g_raid_md_nvidia_refill(struct g_raid_softc *sc)
589 {
590 struct g_raid_md_object *md;
591 struct g_raid_md_nvidia_object *mdi;
592 struct g_raid_disk *disk;
593 struct task *task;
594 int update, na;
595
596 md = sc->sc_md;
597 mdi = (struct g_raid_md_nvidia_object *)md;
598 update = 0;
599 do {
600 /* Make sure we miss anything. */
601 na = g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE);
602 if (na == mdi->mdio_total_disks)
603 break;
604
605 G_RAID_DEBUG1(1, md->mdo_softc,
606 "Array is not complete (%d of %d), "
607 "trying to refill.", na, mdi->mdio_total_disks);
608
609 /* Try to get use some of STALE disks. */
610 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
611 if (disk->d_state == G_RAID_DISK_S_STALE) {
612 update += g_raid_md_nvidia_start_disk(disk);
613 if (disk->d_state == G_RAID_DISK_S_ACTIVE)
614 break;
615 }
616 }
617 if (disk != NULL)
618 continue;
619
620 /* Try to get use some of SPARE disks. */
621 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
622 if (disk->d_state == G_RAID_DISK_S_SPARE) {
623 update += g_raid_md_nvidia_start_disk(disk);
624 if (disk->d_state == G_RAID_DISK_S_ACTIVE)
625 break;
626 }
627 }
628 } while (disk != NULL);
629
630 /* Write new metadata if we changed something. */
631 if (update)
632 g_raid_md_write_nvidia(md, NULL, NULL, NULL);
633
634 /* Update status of our need for spare. */
635 mdi->mdio_incomplete = (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) <
636 mdi->mdio_total_disks);
637
638 /* Request retaste hoping to find spare. */
639 if (mdi->mdio_incomplete) {
640 task = malloc(sizeof(struct task),
641 M_MD_NVIDIA, M_WAITOK | M_ZERO);
642 TASK_INIT(task, 0, g_disk_md_nvidia_retaste, task);
643 taskqueue_enqueue(taskqueue_swi, task);
644 }
645 }
646
647 static void
648 g_raid_md_nvidia_start(struct g_raid_softc *sc)
649 {
650 struct g_raid_md_object *md;
651 struct g_raid_md_nvidia_object *mdi;
652 struct g_raid_md_nvidia_perdisk *pd;
653 struct nvidia_raid_conf *meta;
654 struct g_raid_volume *vol;
655 struct g_raid_subdisk *sd;
656 struct g_raid_disk *disk;
657 off_t size;
658 int j, disk_pos;
659 char buf[17];
660
661 md = sc->sc_md;
662 mdi = (struct g_raid_md_nvidia_object *)md;
663 meta = mdi->mdio_meta;
664
665 /* Create volumes and subdisks. */
666 nvidia_meta_get_name(meta, buf);
667 vol = g_raid_create_volume(sc, buf, -1);
668 vol->v_mediasize = (off_t)meta->total_sectors * 512;
669 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE;
670 if (meta->type == NVIDIA_T_RAID0) {
671 vol->v_raid_level = G_RAID_VOLUME_RL_RAID0;
672 size = vol->v_mediasize / mdi->mdio_total_disks;
673 } else if (meta->type == NVIDIA_T_RAID1) {
674 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1;
675 size = vol->v_mediasize;
676 } else if (meta->type == NVIDIA_T_RAID01) {
677 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E;
678 size = vol->v_mediasize / (mdi->mdio_total_disks / 2);
679 } else if (meta->type == NVIDIA_T_CONCAT) {
680 if (mdi->mdio_total_disks == 1)
681 vol->v_raid_level = G_RAID_VOLUME_RL_SINGLE;
682 else
683 vol->v_raid_level = G_RAID_VOLUME_RL_CONCAT;
684 size = 0;
685 } else if (meta->type == NVIDIA_T_RAID5) {
686 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5;
687 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_R5LA;
688 size = vol->v_mediasize / (mdi->mdio_total_disks - 1);
689 } else if (meta->type == NVIDIA_T_RAID5_SYM) {
690 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5;
691 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_R5LS;
692 size = vol->v_mediasize / (mdi->mdio_total_disks - 1);
693 } else {
694 vol->v_raid_level = G_RAID_VOLUME_RL_UNKNOWN;
695 size = 0;
696 }
697 vol->v_strip_size = meta->strip_sectors * 512; //ZZZ
698 vol->v_disks_count = mdi->mdio_total_disks;
699 vol->v_sectorsize = 512; //ZZZ
700 for (j = 0; j < vol->v_disks_count; j++) {
701 sd = &vol->v_subdisks[j];
702 sd->sd_offset = 0;
703 sd->sd_size = size;
704 }
705 g_raid_start_volume(vol);
706
707 /* Create disk placeholders to store data for later writing. */
708 for (disk_pos = 0; disk_pos < mdi->mdio_total_disks; disk_pos++) {
709 pd = malloc(sizeof(*pd), M_MD_NVIDIA, M_WAITOK | M_ZERO);
710 pd->pd_disk_pos = disk_pos;
711 disk = g_raid_create_disk(sc);
712 disk->d_md_data = (void *)pd;
713 disk->d_state = G_RAID_DISK_S_OFFLINE;
714 sd = &vol->v_subdisks[disk_pos];
715 sd->sd_disk = disk;
716 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next);
717 }
718
719 /* Make all disks found till the moment take their places. */
720 do {
721 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
722 if (disk->d_state == G_RAID_DISK_S_NONE) {
723 g_raid_md_nvidia_start_disk(disk);
724 break;
725 }
726 }
727 } while (disk != NULL);
728
729 mdi->mdio_started = 1;
730 G_RAID_DEBUG1(0, sc, "Array started.");
731 g_raid_md_write_nvidia(md, NULL, NULL, NULL);
732
733 /* Pickup any STALE/SPARE disks to refill array if needed. */
734 g_raid_md_nvidia_refill(sc);
735
736 g_raid_event_send(vol, G_RAID_VOLUME_E_START, G_RAID_EVENT_VOLUME);
737
738 callout_stop(&mdi->mdio_start_co);
739 G_RAID_DEBUG1(1, sc, "root_mount_rel %p", mdi->mdio_rootmount);
740 root_mount_rel(mdi->mdio_rootmount);
741 mdi->mdio_rootmount = NULL;
742 }
743
744 static void
745 g_raid_md_nvidia_new_disk(struct g_raid_disk *disk)
746 {
747 struct g_raid_softc *sc;
748 struct g_raid_md_object *md;
749 struct g_raid_md_nvidia_object *mdi;
750 struct nvidia_raid_conf *pdmeta;
751 struct g_raid_md_nvidia_perdisk *pd;
752
753 sc = disk->d_softc;
754 md = sc->sc_md;
755 mdi = (struct g_raid_md_nvidia_object *)md;
756 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data;
757 pdmeta = pd->pd_meta;
758
759 if (mdi->mdio_started) {
760 if (g_raid_md_nvidia_start_disk(disk))
761 g_raid_md_write_nvidia(md, NULL, NULL, NULL);
762 } else {
763 if (mdi->mdio_meta == NULL ||
764 mdi->mdio_meta->disk_number >= mdi->mdio_meta->total_disks) {
765 G_RAID_DEBUG1(1, sc, "Newer disk");
766 if (mdi->mdio_meta != NULL)
767 free(mdi->mdio_meta, M_MD_NVIDIA);
768 mdi->mdio_meta = nvidia_meta_copy(pdmeta);
769 mdi->mdio_total_disks = pdmeta->total_disks;
770 mdi->mdio_disks_present = 1;
771 } else if (pdmeta->disk_number < mdi->mdio_meta->total_disks) {
772 mdi->mdio_disks_present++;
773 G_RAID_DEBUG1(1, sc, "Matching disk (%d of %d up)",
774 mdi->mdio_disks_present,
775 mdi->mdio_total_disks);
776 } else
777 G_RAID_DEBUG1(1, sc, "Spare disk");
778
779 /* If we collected all needed disks - start array. */
780 if (mdi->mdio_disks_present == mdi->mdio_total_disks)
781 g_raid_md_nvidia_start(sc);
782 }
783 }
784
785 static void
786 g_raid_nvidia_go(void *arg)
787 {
788 struct g_raid_softc *sc;
789 struct g_raid_md_object *md;
790 struct g_raid_md_nvidia_object *mdi;
791
792 sc = arg;
793 md = sc->sc_md;
794 mdi = (struct g_raid_md_nvidia_object *)md;
795 if (!mdi->mdio_started) {
796 G_RAID_DEBUG1(0, sc, "Force array start due to timeout.");
797 g_raid_event_send(sc, G_RAID_NODE_E_START, 0);
798 }
799 }
800
801 static int
802 g_raid_md_create_nvidia(struct g_raid_md_object *md, struct g_class *mp,
803 struct g_geom **gp)
804 {
805 struct g_raid_softc *sc;
806 struct g_raid_md_nvidia_object *mdi;
807 char name[32];
808
809 mdi = (struct g_raid_md_nvidia_object *)md;
810 arc4rand(&mdi->mdio_volume_id, 16, 0);
811 snprintf(name, sizeof(name), "NVIDIA-%d",
812 atomic_fetchadd_int(&NVIDIANodeID, 1));
813 sc = g_raid_create_node(mp, name, md);
814 if (sc == NULL)
815 return (G_RAID_MD_TASTE_FAIL);
816 md->mdo_softc = sc;
817 *gp = sc->sc_geom;
818 return (G_RAID_MD_TASTE_NEW);
819 }
820
821 static int
822 g_raid_md_taste_nvidia(struct g_raid_md_object *md, struct g_class *mp,
823 struct g_consumer *cp, struct g_geom **gp)
824 {
825 struct g_consumer *rcp;
826 struct g_provider *pp;
827 struct g_raid_md_nvidia_object *mdi, *mdi1;
828 struct g_raid_softc *sc;
829 struct g_raid_disk *disk;
830 struct nvidia_raid_conf *meta;
831 struct g_raid_md_nvidia_perdisk *pd;
832 struct g_geom *geom;
833 int error, result, spare, len;
834 char name[32];
835 uint16_t vendor;
836
837 G_RAID_DEBUG(1, "Tasting NVIDIA on %s", cp->provider->name);
838 mdi = (struct g_raid_md_nvidia_object *)md;
839 pp = cp->provider;
840
841 /* Read metadata from device. */
842 meta = NULL;
843 vendor = 0xffff;
844 if (g_access(cp, 1, 0, 0) != 0)
845 return (G_RAID_MD_TASTE_FAIL);
846 g_topology_unlock();
847 len = 2;
848 if (pp->geom->rank == 1)
849 g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor);
850 meta = nvidia_meta_read(cp);
851 g_topology_lock();
852 g_access(cp, -1, 0, 0);
853 if (meta == NULL) {
854 if (g_raid_aggressive_spare) {
855 if (vendor == 0x10de) {
856 G_RAID_DEBUG(1,
857 "No NVIDIA metadata, forcing spare.");
858 spare = 2;
859 goto search;
860 } else {
861 G_RAID_DEBUG(1,
862 "NVIDIA vendor mismatch 0x%04x != 0x10de",
863 vendor);
864 }
865 }
866 return (G_RAID_MD_TASTE_FAIL);
867 }
868
869 /* Metadata valid. Print it. */
870 g_raid_md_nvidia_print(meta);
871 G_RAID_DEBUG(1, "NVIDIA disk position %d", meta->disk_number);
872 spare = 0;//(meta->type == NVIDIA_T_SPARE) ? 1 : 0;
873
874 search:
875 /* Search for matching node. */
876 sc = NULL;
877 mdi1 = NULL;
878 LIST_FOREACH(geom, &mp->geom, geom) {
879 sc = geom->softc;
880 if (sc == NULL)
881 continue;
882 if (sc->sc_stopping != 0)
883 continue;
884 if (sc->sc_md->mdo_class != md->mdo_class)
885 continue;
886 mdi1 = (struct g_raid_md_nvidia_object *)sc->sc_md;
887 if (spare) {
888 if (mdi1->mdio_incomplete)
889 break;
890 } else {
891 if (memcmp(&mdi1->mdio_volume_id,
892 &meta->volume_id, 16) == 0)
893 break;
894 }
895 }
896
897 /* Found matching node. */
898 if (geom != NULL) {
899 G_RAID_DEBUG(1, "Found matching array %s", sc->sc_name);
900 result = G_RAID_MD_TASTE_EXISTING;
901
902 } else if (spare) { /* Not found needy node -- left for later. */
903 G_RAID_DEBUG(1, "Spare is not needed at this time");
904 goto fail1;
905
906 } else { /* Not found matching node -- create one. */
907 result = G_RAID_MD_TASTE_NEW;
908 memcpy(&mdi->mdio_volume_id, &meta->volume_id, 16);
909 snprintf(name, sizeof(name), "NVIDIA-%d",
910 atomic_fetchadd_int(&NVIDIANodeID, 1));
911 sc = g_raid_create_node(mp, name, md);
912 md->mdo_softc = sc;
913 geom = sc->sc_geom;
914 callout_init(&mdi->mdio_start_co, 1);
915 callout_reset(&mdi->mdio_start_co, g_raid_start_timeout * hz,
916 g_raid_nvidia_go, sc);
917 mdi->mdio_rootmount = root_mount_hold("GRAID-NVIDIA");
918 G_RAID_DEBUG1(1, sc, "root_mount_hold %p", mdi->mdio_rootmount);
919 }
920
921 rcp = g_new_consumer(geom);
922 g_attach(rcp, pp);
923 if (g_access(rcp, 1, 1, 1) != 0)
924 ; //goto fail1;
925
926 g_topology_unlock();
927 sx_xlock(&sc->sc_lock);
928
929 pd = malloc(sizeof(*pd), M_MD_NVIDIA, M_WAITOK | M_ZERO);
930 pd->pd_meta = meta;
931 if (spare == 2) {
932 pd->pd_disk_pos = -3;
933 } else {
934 pd->pd_disk_pos = -1;
935 }
936 pd->pd_disk_size = pp->mediasize;
937 disk = g_raid_create_disk(sc);
938 disk->d_md_data = (void *)pd;
939 disk->d_consumer = rcp;
940 rcp->private = disk;
941
942 /* Read kernel dumping information. */
943 disk->d_kd.offset = 0;
944 disk->d_kd.length = OFF_MAX;
945 len = sizeof(disk->d_kd);
946 error = g_io_getattr("GEOM::kerneldump", rcp, &len, &disk->d_kd);
947 if (disk->d_kd.di.dumper == NULL)
948 G_RAID_DEBUG1(2, sc, "Dumping not supported by %s: %d.",
949 rcp->provider->name, error);
950
951 g_raid_md_nvidia_new_disk(disk);
952
953 sx_xunlock(&sc->sc_lock);
954 g_topology_lock();
955 *gp = geom;
956 return (result);
957 fail1:
958 free(meta, M_MD_NVIDIA);
959 return (G_RAID_MD_TASTE_FAIL);
960 }
961
962 static int
963 g_raid_md_event_nvidia(struct g_raid_md_object *md,
964 struct g_raid_disk *disk, u_int event)
965 {
966 struct g_raid_softc *sc;
967 struct g_raid_subdisk *sd;
968 struct g_raid_md_nvidia_object *mdi;
969 struct g_raid_md_nvidia_perdisk *pd;
970
971 sc = md->mdo_softc;
972 mdi = (struct g_raid_md_nvidia_object *)md;
973 if (disk == NULL) {
974 switch (event) {
975 case G_RAID_NODE_E_START:
976 if (!mdi->mdio_started) {
977 /* Bump volume ID to drop missing disks. */
978 arc4rand(&mdi->mdio_volume_id, 16, 0);
979 g_raid_md_nvidia_start(sc);
980 }
981 return (0);
982 }
983 return (-1);
984 }
985 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data;
986 switch (event) {
987 case G_RAID_DISK_E_DISCONNECTED:
988 /* If disk was assigned, just update statuses. */
989 if (pd->pd_disk_pos >= 0) {
990 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE);
991 if (disk->d_consumer) {
992 g_raid_kill_consumer(sc, disk->d_consumer);
993 disk->d_consumer = NULL;
994 }
995 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) {
996 g_raid_change_subdisk_state(sd,
997 G_RAID_SUBDISK_S_NONE);
998 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED,
999 G_RAID_EVENT_SUBDISK);
1000 }
1001 } else {
1002 /* Otherwise -- delete. */
1003 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE);
1004 g_raid_destroy_disk(disk);
1005 }
1006
1007 if (mdi->mdio_started) {
1008 /* Bump volume ID to prevent disk resurrection. */
1009 if (pd->pd_disk_pos >= 0)
1010 arc4rand(&mdi->mdio_volume_id, 16, 0);
1011
1012 /* Write updated metadata to all disks. */
1013 g_raid_md_write_nvidia(md, NULL, NULL, NULL);
1014 }
1015
1016 /* Check if anything left except placeholders. */
1017 if (g_raid_ndisks(sc, -1) ==
1018 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE))
1019 g_raid_destroy_node(sc, 0);
1020 else
1021 g_raid_md_nvidia_refill(sc);
1022 return (0);
1023 }
1024 return (-2);
1025 }
1026
1027 static int
1028 g_raid_md_ctl_nvidia(struct g_raid_md_object *md,
1029 struct gctl_req *req)
1030 {
1031 struct g_raid_softc *sc;
1032 struct g_raid_volume *vol;
1033 struct g_raid_subdisk *sd;
1034 struct g_raid_disk *disk;
1035 struct g_raid_md_nvidia_object *mdi;
1036 struct g_raid_md_nvidia_perdisk *pd;
1037 struct g_consumer *cp;
1038 struct g_provider *pp;
1039 char arg[16];
1040 const char *verb, *volname, *levelname, *diskname;
1041 int *nargs, *force;
1042 off_t size, sectorsize, strip, volsize;
1043 intmax_t *sizearg, *striparg;
1044 int numdisks, i, len, level, qual, update;
1045 int error;
1046
1047 sc = md->mdo_softc;
1048 mdi = (struct g_raid_md_nvidia_object *)md;
1049 verb = gctl_get_param(req, "verb", NULL);
1050 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
1051 error = 0;
1052 if (strcmp(verb, "label") == 0) {
1053
1054 if (*nargs < 4) {
1055 gctl_error(req, "Invalid number of arguments.");
1056 return (-1);
1057 }
1058 volname = gctl_get_asciiparam(req, "arg1");
1059 if (volname == NULL) {
1060 gctl_error(req, "No volume name.");
1061 return (-2);
1062 }
1063 levelname = gctl_get_asciiparam(req, "arg2");
1064 if (levelname == NULL) {
1065 gctl_error(req, "No RAID level.");
1066 return (-3);
1067 }
1068 if (strcasecmp(levelname, "RAID5") == 0)
1069 levelname = "RAID5-LS";
1070 if (g_raid_volume_str2level(levelname, &level, &qual)) {
1071 gctl_error(req, "Unknown RAID level '%s'.", levelname);
1072 return (-4);
1073 }
1074 numdisks = *nargs - 3;
1075 force = gctl_get_paraml(req, "force", sizeof(*force));
1076 if (!g_raid_md_nvidia_supported(level, qual, numdisks,
1077 force ? *force : 0)) {
1078 gctl_error(req, "Unsupported RAID level "
1079 "(0x%02x/0x%02x), or number of disks (%d).",
1080 level, qual, numdisks);
1081 return (-5);
1082 }
1083
1084 /* Search for disks, connect them and probe. */
1085 size = 0x7fffffffffffffffllu;
1086 sectorsize = 0;
1087 for (i = 0; i < numdisks; i++) {
1088 snprintf(arg, sizeof(arg), "arg%d", i + 3);
1089 diskname = gctl_get_asciiparam(req, arg);
1090 if (diskname == NULL) {
1091 gctl_error(req, "No disk name (%s).", arg);
1092 error = -6;
1093 break;
1094 }
1095 if (strcmp(diskname, "NONE") == 0) {
1096 cp = NULL;
1097 pp = NULL;
1098 } else {
1099 g_topology_lock();
1100 cp = g_raid_open_consumer(sc, diskname);
1101 if (cp == NULL) {
1102 gctl_error(req, "Can't open '%s'.",
1103 diskname);
1104 g_topology_unlock();
1105 error = -7;
1106 break;
1107 }
1108 pp = cp->provider;
1109 }
1110 pd = malloc(sizeof(*pd), M_MD_NVIDIA, M_WAITOK | M_ZERO);
1111 pd->pd_disk_pos = i;
1112 disk = g_raid_create_disk(sc);
1113 disk->d_md_data = (void *)pd;
1114 disk->d_consumer = cp;
1115 if (cp == NULL)
1116 continue;
1117 cp->private = disk;
1118 g_topology_unlock();
1119
1120 /* Read kernel dumping information. */
1121 disk->d_kd.offset = 0;
1122 disk->d_kd.length = OFF_MAX;
1123 len = sizeof(disk->d_kd);
1124 g_io_getattr("GEOM::kerneldump", cp, &len, &disk->d_kd);
1125 if (disk->d_kd.di.dumper == NULL)
1126 G_RAID_DEBUG1(2, sc,
1127 "Dumping not supported by %s.",
1128 cp->provider->name);
1129
1130 pd->pd_disk_size = pp->mediasize;
1131 if (size > pp->mediasize)
1132 size = pp->mediasize;
1133 if (sectorsize < pp->sectorsize)
1134 sectorsize = pp->sectorsize;
1135 }
1136 if (error != 0)
1137 return (error);
1138
1139 if (sectorsize <= 0) {
1140 gctl_error(req, "Can't get sector size.");
1141 return (-8);
1142 }
1143
1144 /* Reserve space for metadata. */
1145 size -= 2 * sectorsize;
1146
1147 /* Handle size argument. */
1148 len = sizeof(*sizearg);
1149 sizearg = gctl_get_param(req, "size", &len);
1150 if (sizearg != NULL && len == sizeof(*sizearg) &&
1151 *sizearg > 0) {
1152 if (*sizearg > size) {
1153 gctl_error(req, "Size too big %lld > %lld.",
1154 (long long)*sizearg, (long long)size);
1155 return (-9);
1156 }
1157 size = *sizearg;
1158 }
1159
1160 /* Handle strip argument. */
1161 strip = 131072;
1162 len = sizeof(*striparg);
1163 striparg = gctl_get_param(req, "strip", &len);
1164 if (striparg != NULL && len == sizeof(*striparg) &&
1165 *striparg > 0) {
1166 if (*striparg < sectorsize) {
1167 gctl_error(req, "Strip size too small.");
1168 return (-10);
1169 }
1170 if (*striparg % sectorsize != 0) {
1171 gctl_error(req, "Incorrect strip size.");
1172 return (-11);
1173 }
1174 if (strip > 65535 * sectorsize) {
1175 gctl_error(req, "Strip size too big.");
1176 return (-12);
1177 }
1178 strip = *striparg;
1179 }
1180
1181 /* Round size down to strip or sector. */
1182 if (level == G_RAID_VOLUME_RL_RAID1)
1183 size -= (size % sectorsize);
1184 else if (level == G_RAID_VOLUME_RL_RAID1E &&
1185 (numdisks & 1) != 0)
1186 size -= (size % (2 * strip));
1187 else
1188 size -= (size % strip);
1189 if (size <= 0) {
1190 gctl_error(req, "Size too small.");
1191 return (-13);
1192 }
1193
1194 if (level == G_RAID_VOLUME_RL_RAID0 ||
1195 level == G_RAID_VOLUME_RL_CONCAT ||
1196 level == G_RAID_VOLUME_RL_SINGLE)
1197 volsize = size * numdisks;
1198 else if (level == G_RAID_VOLUME_RL_RAID1)
1199 volsize = size;
1200 else if (level == G_RAID_VOLUME_RL_RAID5)
1201 volsize = size * (numdisks - 1);
1202 else { /* RAID1E */
1203 volsize = ((size * numdisks) / strip / 2) *
1204 strip;
1205 }
1206 if (volsize > 0xffffffffllu * sectorsize) {
1207 gctl_error(req, "Size too big.");
1208 return (-14);
1209 }
1210
1211 /* We have all we need, create things: volume, ... */
1212 mdi->mdio_total_disks = numdisks;
1213 mdi->mdio_started = 1;
1214 vol = g_raid_create_volume(sc, volname, -1);
1215 vol->v_md_data = (void *)(intptr_t)0;
1216 vol->v_raid_level = level;
1217 vol->v_raid_level_qualifier = qual;
1218 vol->v_strip_size = strip;
1219 vol->v_disks_count = numdisks;
1220 vol->v_mediasize = volsize;
1221 vol->v_sectorsize = sectorsize;
1222 g_raid_start_volume(vol);
1223
1224 /* , and subdisks. */
1225 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1226 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data;
1227 sd = &vol->v_subdisks[pd->pd_disk_pos];
1228 sd->sd_disk = disk;
1229 sd->sd_offset = 0;
1230 sd->sd_size = size;
1231 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next);
1232 if (sd->sd_disk->d_consumer != NULL) {
1233 g_raid_change_disk_state(disk,
1234 G_RAID_DISK_S_ACTIVE);
1235 g_raid_change_subdisk_state(sd,
1236 G_RAID_SUBDISK_S_ACTIVE);
1237 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW,
1238 G_RAID_EVENT_SUBDISK);
1239 } else {
1240 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE);
1241 }
1242 }
1243
1244 /* Write metadata based on created entities. */
1245 G_RAID_DEBUG1(0, sc, "Array started.");
1246 g_raid_md_write_nvidia(md, NULL, NULL, NULL);
1247
1248 /* Pickup any STALE/SPARE disks to refill array if needed. */
1249 g_raid_md_nvidia_refill(sc);
1250
1251 g_raid_event_send(vol, G_RAID_VOLUME_E_START,
1252 G_RAID_EVENT_VOLUME);
1253 return (0);
1254 }
1255 if (strcmp(verb, "delete") == 0) {
1256
1257 /* Check if some volume is still open. */
1258 force = gctl_get_paraml(req, "force", sizeof(*force));
1259 if (force != NULL && *force == 0 &&
1260 g_raid_nopens(sc) != 0) {
1261 gctl_error(req, "Some volume is still open.");
1262 return (-4);
1263 }
1264
1265 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1266 if (disk->d_consumer)
1267 nvidia_meta_erase(disk->d_consumer);
1268 }
1269 g_raid_destroy_node(sc, 0);
1270 return (0);
1271 }
1272 if (strcmp(verb, "remove") == 0 ||
1273 strcmp(verb, "fail") == 0) {
1274 if (*nargs < 2) {
1275 gctl_error(req, "Invalid number of arguments.");
1276 return (-1);
1277 }
1278 for (i = 1; i < *nargs; i++) {
1279 snprintf(arg, sizeof(arg), "arg%d", i);
1280 diskname = gctl_get_asciiparam(req, arg);
1281 if (diskname == NULL) {
1282 gctl_error(req, "No disk name (%s).", arg);
1283 error = -2;
1284 break;
1285 }
1286 if (strncmp(diskname, "/dev/", 5) == 0)
1287 diskname += 5;
1288
1289 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1290 if (disk->d_consumer != NULL &&
1291 disk->d_consumer->provider != NULL &&
1292 strcmp(disk->d_consumer->provider->name,
1293 diskname) == 0)
1294 break;
1295 }
1296 if (disk == NULL) {
1297 gctl_error(req, "Disk '%s' not found.",
1298 diskname);
1299 error = -3;
1300 break;
1301 }
1302
1303 if (strcmp(verb, "fail") == 0) {
1304 g_raid_md_fail_disk_nvidia(md, NULL, disk);
1305 continue;
1306 }
1307
1308 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data;
1309
1310 /* Erase metadata on deleting disk. */
1311 nvidia_meta_erase(disk->d_consumer);
1312
1313 /* If disk was assigned, just update statuses. */
1314 if (pd->pd_disk_pos >= 0) {
1315 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE);
1316 g_raid_kill_consumer(sc, disk->d_consumer);
1317 disk->d_consumer = NULL;
1318 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) {
1319 g_raid_change_subdisk_state(sd,
1320 G_RAID_SUBDISK_S_NONE);
1321 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED,
1322 G_RAID_EVENT_SUBDISK);
1323 }
1324 } else {
1325 /* Otherwise -- delete. */
1326 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE);
1327 g_raid_destroy_disk(disk);
1328 }
1329 }
1330
1331 /* Write updated metadata to remaining disks. */
1332 g_raid_md_write_nvidia(md, NULL, NULL, NULL);
1333
1334 /* Check if anything left except placeholders. */
1335 if (g_raid_ndisks(sc, -1) ==
1336 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE))
1337 g_raid_destroy_node(sc, 0);
1338 else
1339 g_raid_md_nvidia_refill(sc);
1340 return (error);
1341 }
1342 if (strcmp(verb, "insert") == 0) {
1343 if (*nargs < 2) {
1344 gctl_error(req, "Invalid number of arguments.");
1345 return (-1);
1346 }
1347 update = 0;
1348 for (i = 1; i < *nargs; i++) {
1349 /* Get disk name. */
1350 snprintf(arg, sizeof(arg), "arg%d", i);
1351 diskname = gctl_get_asciiparam(req, arg);
1352 if (diskname == NULL) {
1353 gctl_error(req, "No disk name (%s).", arg);
1354 error = -3;
1355 break;
1356 }
1357
1358 /* Try to find provider with specified name. */
1359 g_topology_lock();
1360 cp = g_raid_open_consumer(sc, diskname);
1361 if (cp == NULL) {
1362 gctl_error(req, "Can't open disk '%s'.",
1363 diskname);
1364 g_topology_unlock();
1365 error = -4;
1366 break;
1367 }
1368 pp = cp->provider;
1369
1370 pd = malloc(sizeof(*pd), M_MD_NVIDIA, M_WAITOK | M_ZERO);
1371 pd->pd_disk_pos = -3;
1372 pd->pd_disk_size = pp->mediasize;
1373
1374 disk = g_raid_create_disk(sc);
1375 disk->d_consumer = cp;
1376 disk->d_md_data = (void *)pd;
1377 cp->private = disk;
1378 g_topology_unlock();
1379
1380 /* Read kernel dumping information. */
1381 disk->d_kd.offset = 0;
1382 disk->d_kd.length = OFF_MAX;
1383 len = sizeof(disk->d_kd);
1384 g_io_getattr("GEOM::kerneldump", cp, &len, &disk->d_kd);
1385 if (disk->d_kd.di.dumper == NULL)
1386 G_RAID_DEBUG1(2, sc,
1387 "Dumping not supported by %s.",
1388 cp->provider->name);
1389
1390 /* Welcome the "new" disk. */
1391 update += g_raid_md_nvidia_start_disk(disk);
1392 if (disk->d_state != G_RAID_DISK_S_SPARE &&
1393 disk->d_state != G_RAID_DISK_S_ACTIVE) {
1394 gctl_error(req, "Disk '%s' doesn't fit.",
1395 diskname);
1396 g_raid_destroy_disk(disk);
1397 error = -8;
1398 break;
1399 }
1400 }
1401
1402 /* Write new metadata if we changed something. */
1403 if (update)
1404 g_raid_md_write_nvidia(md, NULL, NULL, NULL);
1405 return (error);
1406 }
1407 gctl_error(req, "Command '%s' is not supported.", verb);
1408 return (-100);
1409 }
1410
1411 static int
1412 g_raid_md_write_nvidia(struct g_raid_md_object *md, struct g_raid_volume *tvol,
1413 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk)
1414 {
1415 struct g_raid_softc *sc;
1416 struct g_raid_volume *vol;
1417 struct g_raid_subdisk *sd;
1418 struct g_raid_disk *disk;
1419 struct g_raid_md_nvidia_object *mdi;
1420 struct g_raid_md_nvidia_perdisk *pd;
1421 struct nvidia_raid_conf *meta;
1422 int i, spares;
1423
1424 sc = md->mdo_softc;
1425 mdi = (struct g_raid_md_nvidia_object *)md;
1426
1427 if (sc->sc_stopping == G_RAID_DESTROY_HARD)
1428 return (0);
1429
1430 /* There is only one volume. */
1431 vol = TAILQ_FIRST(&sc->sc_volumes);
1432
1433 /* Fill global fields. */
1434 meta = malloc(sizeof(*meta), M_MD_NVIDIA, M_WAITOK | M_ZERO);
1435 if (mdi->mdio_meta)
1436 memcpy(meta, mdi->mdio_meta, sizeof(*meta));
1437 memcpy(meta->nvidia_id, NVIDIA_MAGIC, sizeof(NVIDIA_MAGIC) - 1);
1438 meta->config_size = 30;
1439 meta->version = 0x0064;
1440 meta->total_sectors = vol->v_mediasize / vol->v_sectorsize;
1441 meta->sector_size = vol->v_sectorsize;
1442 nvidia_meta_put_name(meta, vol->v_name);
1443 meta->magic_0 = NVIDIA_MAGIC0;
1444 memcpy(&meta->volume_id, &mdi->mdio_volume_id, 16);
1445 meta->state = NVIDIA_S_IDLE;
1446 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1)
1447 meta->array_width = 1;
1448 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E)
1449 meta->array_width = vol->v_disks_count / 2;
1450 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID5)
1451 meta->array_width = vol->v_disks_count - 1;
1452 else
1453 meta->array_width = vol->v_disks_count;
1454 meta->total_disks = vol->v_disks_count;
1455 meta->orig_array_width = meta->array_width;
1456 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID0)
1457 meta->type = NVIDIA_T_RAID0;
1458 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1)
1459 meta->type = NVIDIA_T_RAID1;
1460 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E)
1461 meta->type = NVIDIA_T_RAID01;
1462 else if (vol->v_raid_level == G_RAID_VOLUME_RL_CONCAT ||
1463 vol->v_raid_level == G_RAID_VOLUME_RL_SINGLE)
1464 meta->type = NVIDIA_T_CONCAT;
1465 else if (vol->v_raid_level_qualifier == G_RAID_VOLUME_RLQ_R5LA)
1466 meta->type = NVIDIA_T_RAID5;
1467 else
1468 meta->type = NVIDIA_T_RAID5_SYM;
1469 meta->strip_sectors = vol->v_strip_size / vol->v_sectorsize;
1470 meta->strip_bytes = vol->v_strip_size;
1471 meta->strip_shift = ffs(meta->strip_sectors) - 1;
1472 meta->strip_mask = meta->strip_sectors - 1;
1473 meta->stripe_sectors = meta->strip_sectors * meta->orig_array_width;
1474 meta->stripe_bytes = meta->stripe_sectors * vol->v_sectorsize;
1475 meta->rebuild_lba = 0;
1476 meta->orig_type = meta->type;
1477 meta->orig_total_sectors = meta->total_sectors;
1478 meta->status = 0;
1479
1480 for (i = 0; i < vol->v_disks_count; i++) {
1481 sd = &vol->v_subdisks[i];
1482 if ((sd->sd_state == G_RAID_SUBDISK_S_STALE ||
1483 sd->sd_state == G_RAID_SUBDISK_S_RESYNC ||
1484 vol->v_dirty) &&
1485 meta->state != NVIDIA_S_REBUILD)
1486 meta->state = NVIDIA_S_SYNC;
1487 else if (sd->sd_state == G_RAID_SUBDISK_S_NEW ||
1488 sd->sd_state == G_RAID_SUBDISK_S_REBUILD)
1489 meta->state = NVIDIA_S_REBUILD;
1490 }
1491
1492 /* We are done. Print meta data and store them to disks. */
1493 if (mdi->mdio_meta != NULL)
1494 free(mdi->mdio_meta, M_MD_NVIDIA);
1495 mdi->mdio_meta = meta;
1496 spares = 0;
1497 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1498 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data;
1499 if (disk->d_state != G_RAID_DISK_S_ACTIVE &&
1500 disk->d_state != G_RAID_DISK_S_SPARE)
1501 continue;
1502 if (pd->pd_meta != NULL) {
1503 free(pd->pd_meta, M_MD_NVIDIA);
1504 pd->pd_meta = NULL;
1505 }
1506 pd->pd_meta = nvidia_meta_copy(meta);
1507 if ((sd = TAILQ_FIRST(&disk->d_subdisks)) != NULL) {
1508 /* For RAID0+1 we need to translate order. */
1509 pd->pd_meta->disk_number =
1510 nvidia_meta_translate_disk(meta, sd->sd_pos);
1511 if (sd->sd_state != G_RAID_SUBDISK_S_ACTIVE) {
1512 pd->pd_meta->disk_status = 0x100;
1513 pd->pd_meta->rebuild_lba =
1514 sd->sd_rebuild_pos / vol->v_sectorsize *
1515 meta->array_width;
1516 }
1517 } else
1518 pd->pd_meta->disk_number = meta->total_disks + spares++;
1519 G_RAID_DEBUG(1, "Writing NVIDIA metadata to %s",
1520 g_raid_get_diskname(disk));
1521 g_raid_md_nvidia_print(pd->pd_meta);
1522 nvidia_meta_write(disk->d_consumer, pd->pd_meta);
1523 }
1524 return (0);
1525 }
1526
1527 static int
1528 g_raid_md_fail_disk_nvidia(struct g_raid_md_object *md,
1529 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk)
1530 {
1531 struct g_raid_softc *sc;
1532 struct g_raid_md_nvidia_perdisk *pd;
1533 struct g_raid_subdisk *sd;
1534
1535 sc = md->mdo_softc;
1536 pd = (struct g_raid_md_nvidia_perdisk *)tdisk->d_md_data;
1537
1538 /* We can't fail disk that is not a part of array now. */
1539 if (pd->pd_disk_pos < 0)
1540 return (-1);
1541
1542 /* Erase metadata to prevent disks's later resurrection. */
1543 if (tdisk->d_consumer)
1544 nvidia_meta_erase(tdisk->d_consumer);
1545
1546 /* Change states. */
1547 g_raid_change_disk_state(tdisk, G_RAID_DISK_S_FAILED);
1548 TAILQ_FOREACH(sd, &tdisk->d_subdisks, sd_next) {
1549 g_raid_change_subdisk_state(sd,
1550 G_RAID_SUBDISK_S_FAILED);
1551 g_raid_event_send(sd, G_RAID_SUBDISK_E_FAILED,
1552 G_RAID_EVENT_SUBDISK);
1553 }
1554
1555 /* Write updated metadata to remaining disks. */
1556 g_raid_md_write_nvidia(md, NULL, NULL, tdisk);
1557
1558 /* Check if anything left except placeholders. */
1559 if (g_raid_ndisks(sc, -1) ==
1560 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE))
1561 g_raid_destroy_node(sc, 0);
1562 else
1563 g_raid_md_nvidia_refill(sc);
1564 return (0);
1565 }
1566
1567 static int
1568 g_raid_md_free_disk_nvidia(struct g_raid_md_object *md,
1569 struct g_raid_disk *disk)
1570 {
1571 struct g_raid_md_nvidia_perdisk *pd;
1572
1573 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data;
1574 if (pd->pd_meta != NULL) {
1575 free(pd->pd_meta, M_MD_NVIDIA);
1576 pd->pd_meta = NULL;
1577 }
1578 free(pd, M_MD_NVIDIA);
1579 disk->d_md_data = NULL;
1580 return (0);
1581 }
1582
1583 static int
1584 g_raid_md_free_nvidia(struct g_raid_md_object *md)
1585 {
1586 struct g_raid_md_nvidia_object *mdi;
1587
1588 mdi = (struct g_raid_md_nvidia_object *)md;
1589 if (!mdi->mdio_started) {
1590 mdi->mdio_started = 0;
1591 callout_stop(&mdi->mdio_start_co);
1592 G_RAID_DEBUG1(1, md->mdo_softc,
1593 "root_mount_rel %p", mdi->mdio_rootmount);
1594 root_mount_rel(mdi->mdio_rootmount);
1595 mdi->mdio_rootmount = NULL;
1596 }
1597 if (mdi->mdio_meta != NULL) {
1598 free(mdi->mdio_meta, M_MD_NVIDIA);
1599 mdi->mdio_meta = NULL;
1600 }
1601 return (0);
1602 }
1603
1604 G_RAID_MD_DECLARE(nvidia, "NVIDIA");
Cache object: c683ae5eccfaf6df82780493375be563
|