1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
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 #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/geom_dbg.h>
44 #include "geom/raid/g_raid.h"
45 #include "g_raid_md_if.h"
46
47 static MALLOC_DEFINE(M_MD_NVIDIA, "md_nvidia_data", "GEOM_RAID NVIDIA metadata");
48
49 struct nvidia_raid_conf {
50 uint8_t nvidia_id[8];
51 #define NVIDIA_MAGIC "NVIDIA "
52
53 uint32_t config_size;
54 uint32_t checksum;
55 uint16_t version;
56 uint8_t disk_number;
57 uint8_t dummy_0;
58 uint32_t total_sectors;
59 uint32_t sector_size;
60 uint8_t name[16];
61 uint8_t revision[4];
62 uint32_t disk_status;
63
64 uint32_t magic_0;
65 #define NVIDIA_MAGIC0 0x00640044
66
67 uint64_t volume_id[2];
68 uint8_t state;
69 #define NVIDIA_S_IDLE 0
70 #define NVIDIA_S_INIT 2
71 #define NVIDIA_S_REBUILD 3
72 #define NVIDIA_S_UPGRADE 4
73 #define NVIDIA_S_SYNC 5
74 uint8_t array_width;
75 uint8_t total_disks;
76 uint8_t orig_array_width;
77 uint16_t type;
78 #define NVIDIA_T_RAID0 0x0080
79 #define NVIDIA_T_RAID1 0x0081
80 #define NVIDIA_T_RAID3 0x0083
81 #define NVIDIA_T_RAID5 0x0085 /* RLQ = 00/02? */
82 #define NVIDIA_T_RAID5_SYM 0x0095 /* RLQ = 03 */
83 #define NVIDIA_T_RAID10 0x008a
84 #define NVIDIA_T_RAID01 0x8180
85 #define NVIDIA_T_CONCAT 0x00ff
86
87 uint16_t dummy_3;
88 uint32_t strip_sectors;
89 uint32_t strip_bytes;
90 uint32_t strip_shift;
91 uint32_t strip_mask;
92 uint32_t stripe_sectors;
93 uint32_t stripe_bytes;
94 uint32_t rebuild_lba;
95 uint32_t orig_type;
96 uint32_t orig_total_sectors;
97 uint32_t status;
98 #define NVIDIA_S_BOOTABLE 0x00000001
99 #define NVIDIA_S_DEGRADED 0x00000002
100
101 uint32_t filler[98];
102 } __packed;
103
104 struct g_raid_md_nvidia_perdisk {
105 struct nvidia_raid_conf *pd_meta;
106 int pd_disk_pos;
107 off_t pd_disk_size;
108 };
109
110 struct g_raid_md_nvidia_object {
111 struct g_raid_md_object mdio_base;
112 uint64_t mdio_volume_id[2];
113 struct nvidia_raid_conf *mdio_meta;
114 struct callout mdio_start_co; /* STARTING state timer. */
115 int mdio_total_disks;
116 int mdio_disks_present;
117 int mdio_started;
118 int mdio_incomplete;
119 struct root_hold_token *mdio_rootmount; /* Root mount delay token. */
120 };
121
122 static g_raid_md_create_t g_raid_md_create_nvidia;
123 static g_raid_md_taste_t g_raid_md_taste_nvidia;
124 static g_raid_md_event_t g_raid_md_event_nvidia;
125 static g_raid_md_ctl_t g_raid_md_ctl_nvidia;
126 static g_raid_md_write_t g_raid_md_write_nvidia;
127 static g_raid_md_fail_disk_t g_raid_md_fail_disk_nvidia;
128 static g_raid_md_free_disk_t g_raid_md_free_disk_nvidia;
129 static g_raid_md_free_t g_raid_md_free_nvidia;
130
131 static kobj_method_t g_raid_md_nvidia_methods[] = {
132 KOBJMETHOD(g_raid_md_create, g_raid_md_create_nvidia),
133 KOBJMETHOD(g_raid_md_taste, g_raid_md_taste_nvidia),
134 KOBJMETHOD(g_raid_md_event, g_raid_md_event_nvidia),
135 KOBJMETHOD(g_raid_md_ctl, g_raid_md_ctl_nvidia),
136 KOBJMETHOD(g_raid_md_write, g_raid_md_write_nvidia),
137 KOBJMETHOD(g_raid_md_fail_disk, g_raid_md_fail_disk_nvidia),
138 KOBJMETHOD(g_raid_md_free_disk, g_raid_md_free_disk_nvidia),
139 KOBJMETHOD(g_raid_md_free, g_raid_md_free_nvidia),
140 { 0, 0 }
141 };
142
143 static struct g_raid_md_class g_raid_md_nvidia_class = {
144 "NVIDIA",
145 g_raid_md_nvidia_methods,
146 sizeof(struct g_raid_md_nvidia_object),
147 .mdc_enable = 1,
148 .mdc_priority = 100
149 };
150
151 static int NVIDIANodeID = 1;
152
153 static void
g_raid_md_nvidia_print(struct nvidia_raid_conf * meta)154 g_raid_md_nvidia_print(struct nvidia_raid_conf *meta)
155 {
156
157 if (g_raid_debug < 1)
158 return;
159
160 printf("********* ATA NVIDIA RAID Metadata *********\n");
161 printf("nvidia_id <%.8s>\n", meta->nvidia_id);
162 printf("config_size %u\n", meta->config_size);
163 printf("checksum 0x%08x\n", meta->checksum);
164 printf("version 0x%04x\n", meta->version);
165 printf("disk_number %d\n", meta->disk_number);
166 printf("dummy_0 0x%02x\n", meta->dummy_0);
167 printf("total_sectors %u\n", meta->total_sectors);
168 printf("sector_size %u\n", meta->sector_size);
169 printf("name <%.16s>\n", meta->name);
170 printf("revision 0x%02x%02x%02x%02x\n",
171 meta->revision[0], meta->revision[1],
172 meta->revision[2], meta->revision[3]);
173 printf("disk_status 0x%08x\n", meta->disk_status);
174 printf("magic_0 0x%08x\n", meta->magic_0);
175 printf("volume_id 0x%016jx%016jx\n",
176 meta->volume_id[1], meta->volume_id[0]);
177 printf("state 0x%02x\n", meta->state);
178 printf("array_width %u\n", meta->array_width);
179 printf("total_disks %u\n", meta->total_disks);
180 printf("orig_array_width %u\n", meta->orig_array_width);
181 printf("type 0x%04x\n", meta->type);
182 printf("dummy_3 0x%04x\n", meta->dummy_3);
183 printf("strip_sectors %u\n", meta->strip_sectors);
184 printf("strip_bytes %u\n", meta->strip_bytes);
185 printf("strip_shift %u\n", meta->strip_shift);
186 printf("strip_mask 0x%08x\n", meta->strip_mask);
187 printf("stripe_sectors %u\n", meta->stripe_sectors);
188 printf("stripe_bytes %u\n", meta->stripe_bytes);
189 printf("rebuild_lba %u\n", meta->rebuild_lba);
190 printf("orig_type 0x%04x\n", meta->orig_type);
191 printf("orig_total_sectors %u\n", meta->orig_total_sectors);
192 printf("status 0x%08x\n", meta->status);
193 printf("=================================================\n");
194 }
195
196 static struct nvidia_raid_conf *
nvidia_meta_copy(struct nvidia_raid_conf * meta)197 nvidia_meta_copy(struct nvidia_raid_conf *meta)
198 {
199 struct nvidia_raid_conf *nmeta;
200
201 nmeta = malloc(sizeof(*meta), M_MD_NVIDIA, M_WAITOK);
202 memcpy(nmeta, meta, sizeof(*meta));
203 return (nmeta);
204 }
205
206 static int
nvidia_meta_translate_disk(struct nvidia_raid_conf * meta,int md_disk_pos)207 nvidia_meta_translate_disk(struct nvidia_raid_conf *meta, int md_disk_pos)
208 {
209 int disk_pos;
210
211 if (md_disk_pos >= 0 && meta->type == NVIDIA_T_RAID01) {
212 disk_pos = (md_disk_pos / meta->array_width) +
213 (md_disk_pos % meta->array_width) * meta->array_width;
214 } else
215 disk_pos = md_disk_pos;
216 return (disk_pos);
217 }
218
219 static void
nvidia_meta_get_name(struct nvidia_raid_conf * meta,char * buf)220 nvidia_meta_get_name(struct nvidia_raid_conf *meta, char *buf)
221 {
222 int i;
223
224 strncpy(buf, meta->name, 16);
225 buf[16] = 0;
226 for (i = 15; i >= 0; i--) {
227 if (buf[i] > 0x20)
228 break;
229 buf[i] = 0;
230 }
231 }
232
233 static void
nvidia_meta_put_name(struct nvidia_raid_conf * meta,char * buf)234 nvidia_meta_put_name(struct nvidia_raid_conf *meta, char *buf)
235 {
236
237 memset(meta->name, 0x20, 16);
238 memcpy(meta->name, buf, MIN(strlen(buf), 16));
239 }
240
241 static struct nvidia_raid_conf *
nvidia_meta_read(struct g_consumer * cp)242 nvidia_meta_read(struct g_consumer *cp)
243 {
244 struct g_provider *pp;
245 struct nvidia_raid_conf *meta;
246 char *buf;
247 int error, i;
248 uint32_t checksum, *ptr;
249
250 pp = cp->provider;
251 if (pp->sectorsize < sizeof(*meta))
252 return (NULL);
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 * Different disks may have different sizes,
539 * in concat mode. Update from real disk size.
540 */
541 if (meta->type == NVIDIA_T_CONCAT)
542 sd->sd_size = pd->pd_disk_size - 0x800 * 512;
543
544 if (resurrection) {
545 /* New or ex-spare disk. */
546 g_raid_change_subdisk_state(sd,
547 G_RAID_SUBDISK_S_NEW);
548 } else if (meta->state == NVIDIA_S_REBUILD &&
549 (pd->pd_meta->disk_status & 0x100)) {
550 /* Rebuilding disk. */
551 g_raid_change_subdisk_state(sd,
552 G_RAID_SUBDISK_S_REBUILD);
553 sd->sd_rebuild_pos = (off_t)pd->pd_meta->rebuild_lba /
554 meta->array_width * pd->pd_meta->sector_size;
555 } else if (meta->state == NVIDIA_S_SYNC) {
556 /* Resyncing/dirty disk. */
557 g_raid_change_subdisk_state(sd,
558 G_RAID_SUBDISK_S_RESYNC);
559 sd->sd_rebuild_pos = (off_t)pd->pd_meta->rebuild_lba /
560 meta->array_width * pd->pd_meta->sector_size;
561 } else {
562 /* Up to date disk. */
563 g_raid_change_subdisk_state(sd,
564 G_RAID_SUBDISK_S_ACTIVE);
565 }
566 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW,
567 G_RAID_EVENT_SUBDISK);
568 }
569
570 /* Update status of our need for spare. */
571 if (mdi->mdio_started) {
572 mdi->mdio_incomplete =
573 (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) <
574 mdi->mdio_total_disks);
575 }
576
577 return (resurrection);
578 }
579
580 static void
g_disk_md_nvidia_retaste(void * arg,int pending)581 g_disk_md_nvidia_retaste(void *arg, int pending)
582 {
583
584 G_RAID_DEBUG(1, "Array is not complete, trying to retaste.");
585 g_retaste(&g_raid_class);
586 free(arg, M_MD_NVIDIA);
587 }
588
589 static void
g_raid_md_nvidia_refill(struct g_raid_softc * sc)590 g_raid_md_nvidia_refill(struct g_raid_softc *sc)
591 {
592 struct g_raid_md_object *md;
593 struct g_raid_md_nvidia_object *mdi;
594 struct g_raid_disk *disk;
595 struct task *task;
596 int update, na;
597
598 md = sc->sc_md;
599 mdi = (struct g_raid_md_nvidia_object *)md;
600 update = 0;
601 do {
602 /* Make sure we miss anything. */
603 na = g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE);
604 if (na == mdi->mdio_total_disks)
605 break;
606
607 G_RAID_DEBUG1(1, md->mdo_softc,
608 "Array is not complete (%d of %d), "
609 "trying to refill.", na, mdi->mdio_total_disks);
610
611 /* Try to get use some of STALE disks. */
612 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
613 if (disk->d_state == G_RAID_DISK_S_STALE) {
614 update += g_raid_md_nvidia_start_disk(disk);
615 if (disk->d_state == G_RAID_DISK_S_ACTIVE)
616 break;
617 }
618 }
619 if (disk != NULL)
620 continue;
621
622 /* Try to get use some of SPARE disks. */
623 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
624 if (disk->d_state == G_RAID_DISK_S_SPARE) {
625 update += g_raid_md_nvidia_start_disk(disk);
626 if (disk->d_state == G_RAID_DISK_S_ACTIVE)
627 break;
628 }
629 }
630 } while (disk != NULL);
631
632 /* Write new metadata if we changed something. */
633 if (update)
634 g_raid_md_write_nvidia(md, NULL, NULL, NULL);
635
636 /* Update status of our need for spare. */
637 mdi->mdio_incomplete = (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) <
638 mdi->mdio_total_disks);
639
640 /* Request retaste hoping to find spare. */
641 if (mdi->mdio_incomplete) {
642 task = malloc(sizeof(struct task),
643 M_MD_NVIDIA, M_WAITOK | M_ZERO);
644 TASK_INIT(task, 0, g_disk_md_nvidia_retaste, task);
645 taskqueue_enqueue(taskqueue_swi, task);
646 }
647 }
648
649 static void
g_raid_md_nvidia_start(struct g_raid_softc * sc)650 g_raid_md_nvidia_start(struct g_raid_softc *sc)
651 {
652 struct g_raid_md_object *md;
653 struct g_raid_md_nvidia_object *mdi;
654 struct g_raid_md_nvidia_perdisk *pd;
655 struct nvidia_raid_conf *meta;
656 struct g_raid_volume *vol;
657 struct g_raid_subdisk *sd;
658 struct g_raid_disk *disk;
659 off_t size;
660 int j, disk_pos;
661 char buf[17];
662
663 md = sc->sc_md;
664 mdi = (struct g_raid_md_nvidia_object *)md;
665 meta = mdi->mdio_meta;
666
667 /* Create volumes and subdisks. */
668 nvidia_meta_get_name(meta, buf);
669 vol = g_raid_create_volume(sc, buf, -1);
670 vol->v_mediasize = (off_t)meta->total_sectors * 512;
671 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE;
672 if (meta->type == NVIDIA_T_RAID0) {
673 vol->v_raid_level = G_RAID_VOLUME_RL_RAID0;
674 size = vol->v_mediasize / mdi->mdio_total_disks;
675 } else if (meta->type == NVIDIA_T_RAID1) {
676 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1;
677 size = vol->v_mediasize;
678 } else if (meta->type == NVIDIA_T_RAID01) {
679 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E;
680 size = vol->v_mediasize / (mdi->mdio_total_disks / 2);
681 } else if (meta->type == NVIDIA_T_CONCAT) {
682 if (mdi->mdio_total_disks == 1)
683 vol->v_raid_level = G_RAID_VOLUME_RL_SINGLE;
684 else
685 vol->v_raid_level = G_RAID_VOLUME_RL_CONCAT;
686 size = 0;
687 } else if (meta->type == NVIDIA_T_RAID5) {
688 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5;
689 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_R5LA;
690 size = vol->v_mediasize / (mdi->mdio_total_disks - 1);
691 } else if (meta->type == NVIDIA_T_RAID5_SYM) {
692 vol->v_raid_level = G_RAID_VOLUME_RL_RAID5;
693 vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_R5LS;
694 size = vol->v_mediasize / (mdi->mdio_total_disks - 1);
695 } else {
696 vol->v_raid_level = G_RAID_VOLUME_RL_UNKNOWN;
697 size = 0;
698 }
699 vol->v_strip_size = meta->strip_sectors * 512; //ZZZ
700 vol->v_disks_count = mdi->mdio_total_disks;
701 vol->v_sectorsize = 512; //ZZZ
702 for (j = 0; j < vol->v_disks_count; j++) {
703 sd = &vol->v_subdisks[j];
704 sd->sd_offset = 0;
705 sd->sd_size = size;
706 }
707 g_raid_start_volume(vol);
708
709 /* Create disk placeholders to store data for later writing. */
710 for (disk_pos = 0; disk_pos < mdi->mdio_total_disks; disk_pos++) {
711 pd = malloc(sizeof(*pd), M_MD_NVIDIA, M_WAITOK | M_ZERO);
712 pd->pd_disk_pos = disk_pos;
713 disk = g_raid_create_disk(sc);
714 disk->d_md_data = (void *)pd;
715 disk->d_state = G_RAID_DISK_S_OFFLINE;
716 sd = &vol->v_subdisks[disk_pos];
717 sd->sd_disk = disk;
718 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next);
719 }
720
721 /* Make all disks found till the moment take their places. */
722 do {
723 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
724 if (disk->d_state == G_RAID_DISK_S_NONE) {
725 g_raid_md_nvidia_start_disk(disk);
726 break;
727 }
728 }
729 } while (disk != NULL);
730
731 mdi->mdio_started = 1;
732 G_RAID_DEBUG1(0, sc, "Array started.");
733 g_raid_md_write_nvidia(md, NULL, NULL, NULL);
734
735 /* Pickup any STALE/SPARE disks to refill array if needed. */
736 g_raid_md_nvidia_refill(sc);
737
738 g_raid_event_send(vol, G_RAID_VOLUME_E_START, G_RAID_EVENT_VOLUME);
739
740 callout_stop(&mdi->mdio_start_co);
741 G_RAID_DEBUG1(1, sc, "root_mount_rel %p", mdi->mdio_rootmount);
742 root_mount_rel(mdi->mdio_rootmount);
743 mdi->mdio_rootmount = NULL;
744 }
745
746 static void
g_raid_md_nvidia_new_disk(struct g_raid_disk * disk)747 g_raid_md_nvidia_new_disk(struct g_raid_disk *disk)
748 {
749 struct g_raid_softc *sc;
750 struct g_raid_md_object *md;
751 struct g_raid_md_nvidia_object *mdi;
752 struct nvidia_raid_conf *pdmeta;
753 struct g_raid_md_nvidia_perdisk *pd;
754
755 sc = disk->d_softc;
756 md = sc->sc_md;
757 mdi = (struct g_raid_md_nvidia_object *)md;
758 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data;
759 pdmeta = pd->pd_meta;
760
761 if (mdi->mdio_started) {
762 if (g_raid_md_nvidia_start_disk(disk))
763 g_raid_md_write_nvidia(md, NULL, NULL, NULL);
764 } else {
765 if (mdi->mdio_meta == NULL ||
766 mdi->mdio_meta->disk_number >= mdi->mdio_meta->total_disks) {
767 G_RAID_DEBUG1(1, sc, "Newer disk");
768 if (mdi->mdio_meta != NULL)
769 free(mdi->mdio_meta, M_MD_NVIDIA);
770 mdi->mdio_meta = nvidia_meta_copy(pdmeta);
771 mdi->mdio_total_disks = pdmeta->total_disks;
772 mdi->mdio_disks_present = 1;
773 } else if (pdmeta->disk_number < mdi->mdio_meta->total_disks) {
774 mdi->mdio_disks_present++;
775 G_RAID_DEBUG1(1, sc, "Matching disk (%d of %d up)",
776 mdi->mdio_disks_present,
777 mdi->mdio_total_disks);
778 } else
779 G_RAID_DEBUG1(1, sc, "Spare disk");
780
781 /* If we collected all needed disks - start array. */
782 if (mdi->mdio_disks_present == mdi->mdio_total_disks)
783 g_raid_md_nvidia_start(sc);
784 }
785 }
786
787 static void
g_raid_nvidia_go(void * arg)788 g_raid_nvidia_go(void *arg)
789 {
790 struct g_raid_softc *sc;
791 struct g_raid_md_object *md;
792 struct g_raid_md_nvidia_object *mdi;
793
794 sc = arg;
795 md = sc->sc_md;
796 mdi = (struct g_raid_md_nvidia_object *)md;
797 if (!mdi->mdio_started) {
798 G_RAID_DEBUG1(0, sc, "Force array start due to timeout.");
799 g_raid_event_send(sc, G_RAID_NODE_E_START, 0);
800 }
801 }
802
803 static int
g_raid_md_create_nvidia(struct g_raid_md_object * md,struct g_class * mp,struct g_geom ** gp)804 g_raid_md_create_nvidia(struct g_raid_md_object *md, struct g_class *mp,
805 struct g_geom **gp)
806 {
807 struct g_raid_softc *sc;
808 struct g_raid_md_nvidia_object *mdi;
809 char name[32];
810
811 mdi = (struct g_raid_md_nvidia_object *)md;
812 arc4rand(&mdi->mdio_volume_id, 16, 0);
813 snprintf(name, sizeof(name), "NVIDIA-%d",
814 atomic_fetchadd_int(&NVIDIANodeID, 1));
815 sc = g_raid_create_node(mp, name, md);
816 if (sc == NULL)
817 return (G_RAID_MD_TASTE_FAIL);
818 md->mdo_softc = sc;
819 *gp = sc->sc_geom;
820 return (G_RAID_MD_TASTE_NEW);
821 }
822
823 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)824 g_raid_md_taste_nvidia(struct g_raid_md_object *md, struct g_class *mp,
825 struct g_consumer *cp, struct g_geom **gp)
826 {
827 struct g_consumer *rcp;
828 struct g_provider *pp;
829 struct g_raid_md_nvidia_object *mdi, *mdi1;
830 struct g_raid_softc *sc;
831 struct g_raid_disk *disk;
832 struct nvidia_raid_conf *meta;
833 struct g_raid_md_nvidia_perdisk *pd;
834 struct g_geom *geom;
835 int result, spare, len;
836 char name[32];
837 uint16_t vendor;
838
839 G_RAID_DEBUG(1, "Tasting NVIDIA on %s", cp->provider->name);
840 mdi = (struct g_raid_md_nvidia_object *)md;
841 pp = cp->provider;
842
843 /* Read metadata from device. */
844 meta = NULL;
845 g_topology_unlock();
846 vendor = 0xffff;
847 len = sizeof(vendor);
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 if (meta == NULL) {
853 if (g_raid_aggressive_spare) {
854 if (vendor == 0x10de) {
855 G_RAID_DEBUG(1,
856 "No NVIDIA metadata, forcing spare.");
857 spare = 2;
858 goto search;
859 } else {
860 G_RAID_DEBUG(1,
861 "NVIDIA vendor mismatch 0x%04x != 0x10de",
862 vendor);
863 }
864 }
865 return (G_RAID_MD_TASTE_FAIL);
866 }
867
868 /* Metadata valid. Print it. */
869 g_raid_md_nvidia_print(meta);
870 G_RAID_DEBUG(1, "NVIDIA disk position %d", meta->disk_number);
871 spare = 0;//(meta->type == NVIDIA_T_SPARE) ? 1 : 0;
872
873 search:
874 /* Search for matching node. */
875 sc = NULL;
876 mdi1 = NULL;
877 LIST_FOREACH(geom, &mp->geom, geom) {
878 sc = geom->softc;
879 if (sc == NULL)
880 continue;
881 if (sc->sc_stopping != 0)
882 continue;
883 if (sc->sc_md->mdo_class != md->mdo_class)
884 continue;
885 mdi1 = (struct g_raid_md_nvidia_object *)sc->sc_md;
886 if (spare) {
887 if (mdi1->mdio_incomplete)
888 break;
889 } else {
890 if (memcmp(&mdi1->mdio_volume_id,
891 &meta->volume_id, 16) == 0)
892 break;
893 }
894 }
895
896 /* Found matching node. */
897 if (geom != NULL) {
898 G_RAID_DEBUG(1, "Found matching array %s", sc->sc_name);
899 result = G_RAID_MD_TASTE_EXISTING;
900
901 } else if (spare) { /* Not found needy node -- left for later. */
902 G_RAID_DEBUG(1, "Spare is not needed at this time");
903 goto fail1;
904
905 } else { /* Not found matching node -- create one. */
906 result = G_RAID_MD_TASTE_NEW;
907 memcpy(&mdi->mdio_volume_id, &meta->volume_id, 16);
908 snprintf(name, sizeof(name), "NVIDIA-%d",
909 atomic_fetchadd_int(&NVIDIANodeID, 1));
910 sc = g_raid_create_node(mp, name, md);
911 md->mdo_softc = sc;
912 geom = sc->sc_geom;
913 callout_init(&mdi->mdio_start_co, 1);
914 callout_reset(&mdi->mdio_start_co, g_raid_start_timeout * hz,
915 g_raid_nvidia_go, sc);
916 mdi->mdio_rootmount = root_mount_hold("GRAID-NVIDIA");
917 G_RAID_DEBUG1(1, sc, "root_mount_hold %p", mdi->mdio_rootmount);
918 }
919
920 /* There is no return after this point, so we close passed consumer. */
921 g_access(cp, -1, 0, 0);
922
923 rcp = g_new_consumer(geom);
924 rcp->flags |= G_CF_DIRECT_RECEIVE;
925 g_attach(rcp, pp);
926 if (g_access(rcp, 1, 1, 1) != 0)
927 ; //goto fail1;
928
929 g_topology_unlock();
930 sx_xlock(&sc->sc_lock);
931
932 pd = malloc(sizeof(*pd), M_MD_NVIDIA, M_WAITOK | M_ZERO);
933 pd->pd_meta = meta;
934 if (spare == 2) {
935 pd->pd_disk_pos = -3;
936 } else {
937 pd->pd_disk_pos = -1;
938 }
939 pd->pd_disk_size = pp->mediasize;
940 disk = g_raid_create_disk(sc);
941 disk->d_md_data = (void *)pd;
942 disk->d_consumer = rcp;
943 rcp->private = disk;
944
945 g_raid_get_disk_info(disk);
946
947 g_raid_md_nvidia_new_disk(disk);
948
949 sx_xunlock(&sc->sc_lock);
950 g_topology_lock();
951 *gp = geom;
952 return (result);
953 fail1:
954 free(meta, M_MD_NVIDIA);
955 return (G_RAID_MD_TASTE_FAIL);
956 }
957
958 static int
g_raid_md_event_nvidia(struct g_raid_md_object * md,struct g_raid_disk * disk,u_int event)959 g_raid_md_event_nvidia(struct g_raid_md_object *md,
960 struct g_raid_disk *disk, u_int event)
961 {
962 struct g_raid_softc *sc;
963 struct g_raid_subdisk *sd;
964 struct g_raid_md_nvidia_object *mdi;
965 struct g_raid_md_nvidia_perdisk *pd;
966
967 sc = md->mdo_softc;
968 mdi = (struct g_raid_md_nvidia_object *)md;
969 if (disk == NULL) {
970 switch (event) {
971 case G_RAID_NODE_E_START:
972 if (!mdi->mdio_started) {
973 /* Bump volume ID to drop missing disks. */
974 arc4rand(&mdi->mdio_volume_id, 16, 0);
975 g_raid_md_nvidia_start(sc);
976 }
977 return (0);
978 }
979 return (-1);
980 }
981 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data;
982 switch (event) {
983 case G_RAID_DISK_E_DISCONNECTED:
984 /* If disk was assigned, just update statuses. */
985 if (pd->pd_disk_pos >= 0) {
986 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE);
987 if (disk->d_consumer) {
988 g_raid_kill_consumer(sc, disk->d_consumer);
989 disk->d_consumer = NULL;
990 }
991 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) {
992 g_raid_change_subdisk_state(sd,
993 G_RAID_SUBDISK_S_NONE);
994 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED,
995 G_RAID_EVENT_SUBDISK);
996 }
997 } else {
998 /* Otherwise -- delete. */
999 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE);
1000 g_raid_destroy_disk(disk);
1001 }
1002
1003 if (mdi->mdio_started) {
1004 /* Bump volume ID to prevent disk resurrection. */
1005 if (pd->pd_disk_pos >= 0)
1006 arc4rand(&mdi->mdio_volume_id, 16, 0);
1007
1008 /* Write updated metadata to all disks. */
1009 g_raid_md_write_nvidia(md, NULL, NULL, NULL);
1010 }
1011
1012 /* Check if anything left except placeholders. */
1013 if (g_raid_ndisks(sc, -1) ==
1014 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE))
1015 g_raid_destroy_node(sc, 0);
1016 else
1017 g_raid_md_nvidia_refill(sc);
1018 return (0);
1019 }
1020 return (-2);
1021 }
1022
1023 static int
g_raid_md_ctl_nvidia(struct g_raid_md_object * md,struct gctl_req * req)1024 g_raid_md_ctl_nvidia(struct g_raid_md_object *md,
1025 struct gctl_req *req)
1026 {
1027 struct g_raid_softc *sc;
1028 struct g_raid_volume *vol;
1029 struct g_raid_subdisk *sd;
1030 struct g_raid_disk *disk;
1031 struct g_raid_md_nvidia_object *mdi;
1032 struct g_raid_md_nvidia_perdisk *pd;
1033 struct g_consumer *cp;
1034 struct g_provider *pp;
1035 char arg[16];
1036 const char *verb, *volname, *levelname, *diskname;
1037 int *nargs, *force;
1038 off_t size, sectorsize, strip, volsize;
1039 intmax_t *sizearg, *striparg;
1040 int numdisks, i, len, level, qual, update;
1041 int error;
1042
1043 sc = md->mdo_softc;
1044 mdi = (struct g_raid_md_nvidia_object *)md;
1045 verb = gctl_get_param(req, "verb", NULL);
1046 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
1047 error = 0;
1048 if (strcmp(verb, "label") == 0) {
1049 if (*nargs < 4) {
1050 gctl_error(req, "Invalid number of arguments.");
1051 return (-1);
1052 }
1053 volname = gctl_get_asciiparam(req, "arg1");
1054 if (volname == NULL) {
1055 gctl_error(req, "No volume name.");
1056 return (-2);
1057 }
1058 levelname = gctl_get_asciiparam(req, "arg2");
1059 if (levelname == NULL) {
1060 gctl_error(req, "No RAID level.");
1061 return (-3);
1062 }
1063 if (strcasecmp(levelname, "RAID5") == 0)
1064 levelname = "RAID5-LS";
1065 if (g_raid_volume_str2level(levelname, &level, &qual)) {
1066 gctl_error(req, "Unknown RAID level '%s'.", levelname);
1067 return (-4);
1068 }
1069 numdisks = *nargs - 3;
1070 force = gctl_get_paraml(req, "force", sizeof(*force));
1071 if (!g_raid_md_nvidia_supported(level, qual, numdisks,
1072 force ? *force : 0)) {
1073 gctl_error(req, "Unsupported RAID level "
1074 "(0x%02x/0x%02x), or number of disks (%d).",
1075 level, qual, numdisks);
1076 return (-5);
1077 }
1078
1079 /* Search for disks, connect them and probe. */
1080 size = 0x7fffffffffffffffllu;
1081 sectorsize = 0;
1082 for (i = 0; i < numdisks; i++) {
1083 snprintf(arg, sizeof(arg), "arg%d", i + 3);
1084 diskname = gctl_get_asciiparam(req, arg);
1085 if (diskname == NULL) {
1086 gctl_error(req, "No disk name (%s).", arg);
1087 error = -6;
1088 break;
1089 }
1090 if (strcmp(diskname, "NONE") == 0) {
1091 cp = NULL;
1092 pp = NULL;
1093 } else {
1094 g_topology_lock();
1095 cp = g_raid_open_consumer(sc, diskname);
1096 if (cp == NULL) {
1097 gctl_error(req, "Can't open '%s'.",
1098 diskname);
1099 g_topology_unlock();
1100 error = -7;
1101 break;
1102 }
1103 pp = cp->provider;
1104 }
1105 pd = malloc(sizeof(*pd), M_MD_NVIDIA, M_WAITOK | M_ZERO);
1106 pd->pd_disk_pos = i;
1107 disk = g_raid_create_disk(sc);
1108 disk->d_md_data = (void *)pd;
1109 disk->d_consumer = cp;
1110 if (cp == NULL)
1111 continue;
1112 cp->private = disk;
1113 g_topology_unlock();
1114
1115 g_raid_get_disk_info(disk);
1116
1117 pd->pd_disk_size = pp->mediasize;
1118 if (size > pp->mediasize)
1119 size = pp->mediasize;
1120 if (sectorsize < pp->sectorsize)
1121 sectorsize = pp->sectorsize;
1122 }
1123 if (error != 0)
1124 return (error);
1125
1126 if (sectorsize <= 0) {
1127 gctl_error(req, "Can't get sector size.");
1128 return (-8);
1129 }
1130
1131 /* Reserve space for metadata. */
1132 size -= 2 * sectorsize;
1133
1134 /* Handle size argument. */
1135 len = sizeof(*sizearg);
1136 sizearg = gctl_get_param(req, "size", &len);
1137 if (sizearg != NULL && len == sizeof(*sizearg) &&
1138 *sizearg > 0) {
1139 if (*sizearg > size) {
1140 gctl_error(req, "Size too big %lld > %lld.",
1141 (long long)*sizearg, (long long)size);
1142 return (-9);
1143 }
1144 size = *sizearg;
1145 }
1146
1147 /* Handle strip argument. */
1148 strip = 131072;
1149 len = sizeof(*striparg);
1150 striparg = gctl_get_param(req, "strip", &len);
1151 if (striparg != NULL && len == sizeof(*striparg) &&
1152 *striparg > 0) {
1153 if (*striparg < sectorsize) {
1154 gctl_error(req, "Strip size too small.");
1155 return (-10);
1156 }
1157 if (*striparg % sectorsize != 0) {
1158 gctl_error(req, "Incorrect strip size.");
1159 return (-11);
1160 }
1161 if (strip > 65535 * sectorsize) {
1162 gctl_error(req, "Strip size too big.");
1163 return (-12);
1164 }
1165 strip = *striparg;
1166 }
1167
1168 /* Round size down to strip or sector. */
1169 if (level == G_RAID_VOLUME_RL_RAID1)
1170 size -= (size % sectorsize);
1171 else if (level == G_RAID_VOLUME_RL_RAID1E &&
1172 (numdisks & 1) != 0)
1173 size -= (size % (2 * strip));
1174 else
1175 size -= (size % strip);
1176 if (size <= 0) {
1177 gctl_error(req, "Size too small.");
1178 return (-13);
1179 }
1180
1181 if (level == G_RAID_VOLUME_RL_RAID0 ||
1182 level == G_RAID_VOLUME_RL_CONCAT ||
1183 level == G_RAID_VOLUME_RL_SINGLE)
1184 volsize = size * numdisks;
1185 else if (level == G_RAID_VOLUME_RL_RAID1)
1186 volsize = size;
1187 else if (level == G_RAID_VOLUME_RL_RAID5)
1188 volsize = size * (numdisks - 1);
1189 else { /* RAID1E */
1190 volsize = ((size * numdisks) / strip / 2) *
1191 strip;
1192 }
1193 if (volsize > 0xffffffffllu * sectorsize) {
1194 gctl_error(req, "Size too big.");
1195 return (-14);
1196 }
1197
1198 /* We have all we need, create things: volume, ... */
1199 mdi->mdio_total_disks = numdisks;
1200 mdi->mdio_started = 1;
1201 vol = g_raid_create_volume(sc, volname, -1);
1202 vol->v_md_data = (void *)(intptr_t)0;
1203 vol->v_raid_level = level;
1204 vol->v_raid_level_qualifier = qual;
1205 vol->v_strip_size = strip;
1206 vol->v_disks_count = numdisks;
1207 vol->v_mediasize = volsize;
1208 vol->v_sectorsize = sectorsize;
1209 g_raid_start_volume(vol);
1210
1211 /* , and subdisks. */
1212 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1213 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data;
1214 sd = &vol->v_subdisks[pd->pd_disk_pos];
1215 sd->sd_disk = disk;
1216 sd->sd_offset = 0;
1217 sd->sd_size = size;
1218 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next);
1219 if (sd->sd_disk->d_consumer != NULL) {
1220 g_raid_change_disk_state(disk,
1221 G_RAID_DISK_S_ACTIVE);
1222 g_raid_change_subdisk_state(sd,
1223 G_RAID_SUBDISK_S_ACTIVE);
1224 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW,
1225 G_RAID_EVENT_SUBDISK);
1226 } else {
1227 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE);
1228 }
1229 }
1230
1231 /* Write metadata based on created entities. */
1232 G_RAID_DEBUG1(0, sc, "Array started.");
1233 g_raid_md_write_nvidia(md, NULL, NULL, NULL);
1234
1235 /* Pickup any STALE/SPARE disks to refill array if needed. */
1236 g_raid_md_nvidia_refill(sc);
1237
1238 g_raid_event_send(vol, G_RAID_VOLUME_E_START,
1239 G_RAID_EVENT_VOLUME);
1240 return (0);
1241 }
1242 if (strcmp(verb, "delete") == 0) {
1243 /* Check if some volume is still open. */
1244 force = gctl_get_paraml(req, "force", sizeof(*force));
1245 if (force != NULL && *force == 0 &&
1246 g_raid_nopens(sc) != 0) {
1247 gctl_error(req, "Some volume is still open.");
1248 return (-4);
1249 }
1250
1251 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1252 if (disk->d_consumer)
1253 nvidia_meta_erase(disk->d_consumer);
1254 }
1255 g_raid_destroy_node(sc, 0);
1256 return (0);
1257 }
1258 if (strcmp(verb, "remove") == 0 ||
1259 strcmp(verb, "fail") == 0) {
1260 if (*nargs < 2) {
1261 gctl_error(req, "Invalid number of arguments.");
1262 return (-1);
1263 }
1264 for (i = 1; i < *nargs; i++) {
1265 snprintf(arg, sizeof(arg), "arg%d", i);
1266 diskname = gctl_get_asciiparam(req, arg);
1267 if (diskname == NULL) {
1268 gctl_error(req, "No disk name (%s).", arg);
1269 error = -2;
1270 break;
1271 }
1272 if (strncmp(diskname, _PATH_DEV, 5) == 0)
1273 diskname += 5;
1274
1275 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1276 if (disk->d_consumer != NULL &&
1277 disk->d_consumer->provider != NULL &&
1278 strcmp(disk->d_consumer->provider->name,
1279 diskname) == 0)
1280 break;
1281 }
1282 if (disk == NULL) {
1283 gctl_error(req, "Disk '%s' not found.",
1284 diskname);
1285 error = -3;
1286 break;
1287 }
1288
1289 if (strcmp(verb, "fail") == 0) {
1290 g_raid_md_fail_disk_nvidia(md, NULL, disk);
1291 continue;
1292 }
1293
1294 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data;
1295
1296 /* Erase metadata on deleting disk. */
1297 nvidia_meta_erase(disk->d_consumer);
1298
1299 /* If disk was assigned, just update statuses. */
1300 if (pd->pd_disk_pos >= 0) {
1301 g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE);
1302 g_raid_kill_consumer(sc, disk->d_consumer);
1303 disk->d_consumer = NULL;
1304 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) {
1305 g_raid_change_subdisk_state(sd,
1306 G_RAID_SUBDISK_S_NONE);
1307 g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED,
1308 G_RAID_EVENT_SUBDISK);
1309 }
1310 } else {
1311 /* Otherwise -- delete. */
1312 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE);
1313 g_raid_destroy_disk(disk);
1314 }
1315 }
1316
1317 /* Write updated metadata to remaining disks. */
1318 g_raid_md_write_nvidia(md, NULL, NULL, NULL);
1319
1320 /* Check if anything left except placeholders. */
1321 if (g_raid_ndisks(sc, -1) ==
1322 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE))
1323 g_raid_destroy_node(sc, 0);
1324 else
1325 g_raid_md_nvidia_refill(sc);
1326 return (error);
1327 }
1328 if (strcmp(verb, "insert") == 0) {
1329 if (*nargs < 2) {
1330 gctl_error(req, "Invalid number of arguments.");
1331 return (-1);
1332 }
1333 update = 0;
1334 for (i = 1; i < *nargs; i++) {
1335 /* Get disk name. */
1336 snprintf(arg, sizeof(arg), "arg%d", i);
1337 diskname = gctl_get_asciiparam(req, arg);
1338 if (diskname == NULL) {
1339 gctl_error(req, "No disk name (%s).", arg);
1340 error = -3;
1341 break;
1342 }
1343
1344 /* Try to find provider with specified name. */
1345 g_topology_lock();
1346 cp = g_raid_open_consumer(sc, diskname);
1347 if (cp == NULL) {
1348 gctl_error(req, "Can't open disk '%s'.",
1349 diskname);
1350 g_topology_unlock();
1351 error = -4;
1352 break;
1353 }
1354 pp = cp->provider;
1355
1356 pd = malloc(sizeof(*pd), M_MD_NVIDIA, M_WAITOK | M_ZERO);
1357 pd->pd_disk_pos = -3;
1358 pd->pd_disk_size = pp->mediasize;
1359
1360 disk = g_raid_create_disk(sc);
1361 disk->d_consumer = cp;
1362 disk->d_md_data = (void *)pd;
1363 cp->private = disk;
1364 g_topology_unlock();
1365
1366 g_raid_get_disk_info(disk);
1367
1368 /* Welcome the "new" disk. */
1369 update += g_raid_md_nvidia_start_disk(disk);
1370 if (disk->d_state != G_RAID_DISK_S_SPARE &&
1371 disk->d_state != G_RAID_DISK_S_ACTIVE) {
1372 gctl_error(req, "Disk '%s' doesn't fit.",
1373 diskname);
1374 g_raid_destroy_disk(disk);
1375 error = -8;
1376 break;
1377 }
1378 }
1379
1380 /* Write new metadata if we changed something. */
1381 if (update)
1382 g_raid_md_write_nvidia(md, NULL, NULL, NULL);
1383 return (error);
1384 }
1385 gctl_error(req, "Command '%s' is not supported.", verb);
1386 return (-100);
1387 }
1388
1389 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)1390 g_raid_md_write_nvidia(struct g_raid_md_object *md, struct g_raid_volume *tvol,
1391 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk)
1392 {
1393 struct g_raid_softc *sc;
1394 struct g_raid_volume *vol;
1395 struct g_raid_subdisk *sd;
1396 struct g_raid_disk *disk;
1397 struct g_raid_md_nvidia_object *mdi;
1398 struct g_raid_md_nvidia_perdisk *pd;
1399 struct nvidia_raid_conf *meta;
1400 int i, spares;
1401
1402 sc = md->mdo_softc;
1403 mdi = (struct g_raid_md_nvidia_object *)md;
1404
1405 if (sc->sc_stopping == G_RAID_DESTROY_HARD)
1406 return (0);
1407
1408 /* There is only one volume. */
1409 vol = TAILQ_FIRST(&sc->sc_volumes);
1410
1411 /* Fill global fields. */
1412 meta = malloc(sizeof(*meta), M_MD_NVIDIA, M_WAITOK | M_ZERO);
1413 if (mdi->mdio_meta)
1414 memcpy(meta, mdi->mdio_meta, sizeof(*meta));
1415 memcpy(meta->nvidia_id, NVIDIA_MAGIC, sizeof(NVIDIA_MAGIC) - 1);
1416 meta->config_size = 30;
1417 meta->version = 0x0064;
1418 meta->total_sectors = vol->v_mediasize / vol->v_sectorsize;
1419 meta->sector_size = vol->v_sectorsize;
1420 nvidia_meta_put_name(meta, vol->v_name);
1421 meta->magic_0 = NVIDIA_MAGIC0;
1422 memcpy(&meta->volume_id, &mdi->mdio_volume_id, 16);
1423 meta->state = NVIDIA_S_IDLE;
1424 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1)
1425 meta->array_width = 1;
1426 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E)
1427 meta->array_width = vol->v_disks_count / 2;
1428 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID5)
1429 meta->array_width = vol->v_disks_count - 1;
1430 else
1431 meta->array_width = vol->v_disks_count;
1432 meta->total_disks = vol->v_disks_count;
1433 meta->orig_array_width = meta->array_width;
1434 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID0)
1435 meta->type = NVIDIA_T_RAID0;
1436 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1)
1437 meta->type = NVIDIA_T_RAID1;
1438 else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E)
1439 meta->type = NVIDIA_T_RAID01;
1440 else if (vol->v_raid_level == G_RAID_VOLUME_RL_CONCAT ||
1441 vol->v_raid_level == G_RAID_VOLUME_RL_SINGLE)
1442 meta->type = NVIDIA_T_CONCAT;
1443 else if (vol->v_raid_level_qualifier == G_RAID_VOLUME_RLQ_R5LA)
1444 meta->type = NVIDIA_T_RAID5;
1445 else
1446 meta->type = NVIDIA_T_RAID5_SYM;
1447 meta->strip_sectors = vol->v_strip_size / vol->v_sectorsize;
1448 meta->strip_bytes = vol->v_strip_size;
1449 meta->strip_shift = ffs(meta->strip_sectors) - 1;
1450 meta->strip_mask = meta->strip_sectors - 1;
1451 meta->stripe_sectors = meta->strip_sectors * meta->orig_array_width;
1452 meta->stripe_bytes = meta->stripe_sectors * vol->v_sectorsize;
1453 meta->rebuild_lba = 0;
1454 meta->orig_type = meta->type;
1455 meta->orig_total_sectors = meta->total_sectors;
1456 meta->status = 0;
1457
1458 for (i = 0; i < vol->v_disks_count; i++) {
1459 sd = &vol->v_subdisks[i];
1460 if ((sd->sd_state == G_RAID_SUBDISK_S_STALE ||
1461 sd->sd_state == G_RAID_SUBDISK_S_RESYNC ||
1462 vol->v_dirty) &&
1463 meta->state != NVIDIA_S_REBUILD)
1464 meta->state = NVIDIA_S_SYNC;
1465 else if (sd->sd_state == G_RAID_SUBDISK_S_NEW ||
1466 sd->sd_state == G_RAID_SUBDISK_S_REBUILD)
1467 meta->state = NVIDIA_S_REBUILD;
1468 }
1469
1470 /* We are done. Print meta data and store them to disks. */
1471 if (mdi->mdio_meta != NULL)
1472 free(mdi->mdio_meta, M_MD_NVIDIA);
1473 mdi->mdio_meta = meta;
1474 spares = 0;
1475 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
1476 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data;
1477 if (disk->d_state != G_RAID_DISK_S_ACTIVE &&
1478 disk->d_state != G_RAID_DISK_S_SPARE)
1479 continue;
1480 if (pd->pd_meta != NULL) {
1481 free(pd->pd_meta, M_MD_NVIDIA);
1482 pd->pd_meta = NULL;
1483 }
1484 pd->pd_meta = nvidia_meta_copy(meta);
1485 if ((sd = TAILQ_FIRST(&disk->d_subdisks)) != NULL) {
1486 /* For RAID0+1 we need to translate order. */
1487 pd->pd_meta->disk_number =
1488 nvidia_meta_translate_disk(meta, sd->sd_pos);
1489 if (sd->sd_state != G_RAID_SUBDISK_S_ACTIVE) {
1490 pd->pd_meta->disk_status = 0x100;
1491 pd->pd_meta->rebuild_lba =
1492 sd->sd_rebuild_pos / vol->v_sectorsize *
1493 meta->array_width;
1494 }
1495 } else
1496 pd->pd_meta->disk_number = meta->total_disks + spares++;
1497 G_RAID_DEBUG(1, "Writing NVIDIA metadata to %s",
1498 g_raid_get_diskname(disk));
1499 g_raid_md_nvidia_print(pd->pd_meta);
1500 nvidia_meta_write(disk->d_consumer, pd->pd_meta);
1501 }
1502 return (0);
1503 }
1504
1505 static int
g_raid_md_fail_disk_nvidia(struct g_raid_md_object * md,struct g_raid_subdisk * tsd,struct g_raid_disk * tdisk)1506 g_raid_md_fail_disk_nvidia(struct g_raid_md_object *md,
1507 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk)
1508 {
1509 struct g_raid_softc *sc;
1510 struct g_raid_md_nvidia_perdisk *pd;
1511 struct g_raid_subdisk *sd;
1512
1513 sc = md->mdo_softc;
1514 pd = (struct g_raid_md_nvidia_perdisk *)tdisk->d_md_data;
1515
1516 /* We can't fail disk that is not a part of array now. */
1517 if (pd->pd_disk_pos < 0)
1518 return (-1);
1519
1520 /* Erase metadata to prevent disks's later resurrection. */
1521 if (tdisk->d_consumer)
1522 nvidia_meta_erase(tdisk->d_consumer);
1523
1524 /* Change states. */
1525 g_raid_change_disk_state(tdisk, G_RAID_DISK_S_FAILED);
1526 TAILQ_FOREACH(sd, &tdisk->d_subdisks, sd_next) {
1527 g_raid_change_subdisk_state(sd,
1528 G_RAID_SUBDISK_S_FAILED);
1529 g_raid_event_send(sd, G_RAID_SUBDISK_E_FAILED,
1530 G_RAID_EVENT_SUBDISK);
1531 }
1532
1533 /* Write updated metadata to remaining disks. */
1534 g_raid_md_write_nvidia(md, NULL, NULL, tdisk);
1535
1536 /* Check if anything left except placeholders. */
1537 if (g_raid_ndisks(sc, -1) ==
1538 g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE))
1539 g_raid_destroy_node(sc, 0);
1540 else
1541 g_raid_md_nvidia_refill(sc);
1542 return (0);
1543 }
1544
1545 static int
g_raid_md_free_disk_nvidia(struct g_raid_md_object * md,struct g_raid_disk * disk)1546 g_raid_md_free_disk_nvidia(struct g_raid_md_object *md,
1547 struct g_raid_disk *disk)
1548 {
1549 struct g_raid_md_nvidia_perdisk *pd;
1550
1551 pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data;
1552 if (pd->pd_meta != NULL) {
1553 free(pd->pd_meta, M_MD_NVIDIA);
1554 pd->pd_meta = NULL;
1555 }
1556 free(pd, M_MD_NVIDIA);
1557 disk->d_md_data = NULL;
1558 return (0);
1559 }
1560
1561 static int
g_raid_md_free_nvidia(struct g_raid_md_object * md)1562 g_raid_md_free_nvidia(struct g_raid_md_object *md)
1563 {
1564 struct g_raid_md_nvidia_object *mdi;
1565
1566 mdi = (struct g_raid_md_nvidia_object *)md;
1567 if (!mdi->mdio_started) {
1568 mdi->mdio_started = 0;
1569 callout_stop(&mdi->mdio_start_co);
1570 G_RAID_DEBUG1(1, md->mdo_softc,
1571 "root_mount_rel %p", mdi->mdio_rootmount);
1572 root_mount_rel(mdi->mdio_rootmount);
1573 mdi->mdio_rootmount = NULL;
1574 }
1575 if (mdi->mdio_meta != NULL) {
1576 free(mdi->mdio_meta, M_MD_NVIDIA);
1577 mdi->mdio_meta = NULL;
1578 }
1579 return (0);
1580 }
1581
1582 G_RAID_MD_DECLARE(nvidia, "NVIDIA");
1583