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