Date: Tue, 15 Feb 2011 22:01:39 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-projects@freebsd.org Subject: svn commit: r218722 - in projects/graid/head: sbin/geom/class/raid sys/conf sys/geom/raid sys/modules/geom/geom_raid Message-ID: <201102152201.p1FM1der046757@svn.freebsd.org>
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Author: mav Date: Tue Feb 15 22:01:39 2011 New Revision: 218722 URL: http://svn.freebsd.org/changeset/base/218722 Log: Add JMicron RAID BIOS metadata format module. Added: projects/graid/head/sys/geom/raid/md_jmicron.c (contents, props changed) Modified: projects/graid/head/sbin/geom/class/raid/graid.8 projects/graid/head/sys/conf/files projects/graid/head/sys/modules/geom/geom_raid/Makefile Modified: projects/graid/head/sbin/geom/class/raid/graid.8 ============================================================================== --- projects/graid/head/sbin/geom/class/raid/graid.8 Tue Feb 15 22:00:00 2011 (r218721) +++ projects/graid/head/sbin/geom/class/raid/graid.8 Tue Feb 15 22:01:39 2011 (r218722) @@ -24,7 +24,7 @@ .\" .\" $FreeBSD$ .\" -.Dd February 13, 2011 +.Dd February 15, 2011 .Dt GRAID 8 .Os .Sh NAME @@ -207,6 +207,13 @@ Supports configurations: RAID0 (2+ disks RAID5 (3+ disks), RAID10 (4 disks). Configurations not supported by Intel RAID BIOS, but enforsable on your own risk: RAID1 (3+ disks), RAID1E (3+ disks), RAID10 (6+ disks). +.It JMicron +The format used by JMicron RAID BIOS. +Supports one volume per array. +Supports configurations: RAID0 (2+ disks), RAID1 (2 disks), +RAID10 (4 disks), CONCAT (2+ disks). +Configurations not supported by JMicron RAID BIOS, but enforsable on your own +risk: RAID1 (3+ disks), RAID1E (3+ disks), RAID10 (6+ disks), RAID5 (3+ disks). .El .Sh SUPPORTED RAID LEVELS The GEOM RAID class follows a modular design, allowing different RAID levels Modified: projects/graid/head/sys/conf/files ============================================================================== --- projects/graid/head/sys/conf/files Tue Feb 15 22:00:00 2011 (r218721) +++ projects/graid/head/sys/conf/files Tue Feb 15 22:01:39 2011 (r218722) @@ -2090,6 +2090,7 @@ geom/raid/g_raid_ctl.c optional geom_ra geom/raid/g_raid_md_if.m optional geom_raid geom/raid/g_raid_tr_if.m optional geom_raid geom/raid/md_intel.c optional geom_raid +geom/raid/md_jmicron.c optional geom_raid geom/raid/tr_concat.c optional geom_raid geom/raid/tr_raid0.c optional geom_raid geom/raid/tr_raid1.c optional geom_raid Added: projects/graid/head/sys/geom/raid/md_jmicron.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ projects/graid/head/sys/geom/raid/md_jmicron.c Tue Feb 15 22:01:39 2011 (r218722) @@ -0,0 +1,1619 @@ +/*- + * Copyright (c) 2010 Alexander Motin <mav@FreeBSD.org> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/bio.h> +#include <sys/endian.h> +#include <sys/kernel.h> +#include <sys/kobj.h> +#include <sys/limits.h> +#include <sys/lock.h> +#include <sys/malloc.h> +#include <sys/mutex.h> +#include <sys/systm.h> +#include <sys/taskqueue.h> +#include <geom/geom.h> +#include "geom/raid/g_raid.h" +#include "g_raid_md_if.h" + +static MALLOC_DEFINE(M_MD_JMICRON, "md_jmicron_data", "GEOM_RAID JMicron metadata"); + +#define JMICRON_MAX_DISKS 8 +#define JMICRON_MAX_SPARE 2 + +struct jmicron_raid_conf { + u_int8_t signature[2]; +#define JMICRON_MAGIC "JM" + + u_int16_t version; +#define JMICRON_VERSION 0x0001 + + u_int16_t checksum; + u_int8_t filler_1[10]; + u_int32_t disk_id; + u_int32_t offset; + u_int32_t disk_sectors_high; + u_int16_t disk_sectors_low; + u_int8_t filler_2[2]; + u_int8_t name[16]; + u_int8_t type; +#define JMICRON_T_RAID0 0 +#define JMICRON_T_RAID1 1 +#define JMICRON_T_RAID01 2 +#define JMICRON_T_CONCAT 3 +#define JMICRON_T_RAID5 5 + + u_int8_t stripe_shift; + u_int16_t flags; +#define JMICRON_F_READY 0x0001 +#define JMICRON_F_BOOTABLE 0x0002 +#define JMICRON_F_BADSEC 0x0004 +#define JMICRON_F_ACTIVE 0x0010 +#define JMICRON_F_UNSYNC 0x0020 +#define JMICRON_F_NEWEST 0x0040 + + u_int8_t filler_3[4]; + u_int32_t spare[JMICRON_MAX_SPARE]; + u_int32_t disks[JMICRON_MAX_DISKS]; +#define JMICRON_DISK_MASK 0xFFFFFFF0 +#define JMICRON_SEG_MASK 0x0000000F + u_int8_t filler_4[32]; + u_int8_t filler_5[384]; +}; + +struct g_raid_md_jmicron_perdisk { + struct jmicron_raid_conf *pd_meta; + int pd_disk_pos; + int pd_disk_id; +}; + +struct g_raid_md_jmicron_object { + struct g_raid_md_object mdio_base; + uint32_t mdio_config_id; + struct jmicron_raid_conf *mdio_meta; + struct callout mdio_start_co; /* STARTING state timer. */ + int mdio_total_disks; + int mdio_disks_present; + int mdio_started; + int mdio_incomplete; + struct root_hold_token *mdio_rootmount; /* Root mount delay token. */ +}; + +static g_raid_md_create_t g_raid_md_create_jmicron; +static g_raid_md_taste_t g_raid_md_taste_jmicron; +static g_raid_md_event_t g_raid_md_event_jmicron; +static g_raid_md_ctl_t g_raid_md_ctl_jmicron; +static g_raid_md_write_t g_raid_md_write_jmicron; +static g_raid_md_fail_disk_t g_raid_md_fail_disk_jmicron; +static g_raid_md_free_disk_t g_raid_md_free_disk_jmicron; +static g_raid_md_free_t g_raid_md_free_jmicron; + +static kobj_method_t g_raid_md_jmicron_methods[] = { + KOBJMETHOD(g_raid_md_create, g_raid_md_create_jmicron), + KOBJMETHOD(g_raid_md_taste, g_raid_md_taste_jmicron), + KOBJMETHOD(g_raid_md_event, g_raid_md_event_jmicron), + KOBJMETHOD(g_raid_md_ctl, g_raid_md_ctl_jmicron), + KOBJMETHOD(g_raid_md_write, g_raid_md_write_jmicron), + KOBJMETHOD(g_raid_md_fail_disk, g_raid_md_fail_disk_jmicron), + KOBJMETHOD(g_raid_md_free_disk, g_raid_md_free_disk_jmicron), + KOBJMETHOD(g_raid_md_free, g_raid_md_free_jmicron), + { 0, 0 } +}; + +static struct g_raid_md_class g_raid_md_jmicron_class = { + "JMicron", + g_raid_md_jmicron_methods, + sizeof(struct g_raid_md_jmicron_object), + .mdc_priority = 100 +}; + +static void +g_raid_md_jmicron_print(struct jmicron_raid_conf *meta) +{ + int k; + + if (g_raid_debug < 1) + return; + + printf("********* ATA JMicron RAID Metadata *********\n"); + printf("signature <%c%c>\n", meta->signature[0], meta->signature[1]); + printf("version %04x\n", meta->version); + printf("checksum 0x%04x\n", meta->checksum); + printf("disk_id 0x%08x\n", meta->disk_id); + printf("offset 0x%08x\n", meta->offset); + printf("disk_sectors_high 0x%08x\n", meta->disk_sectors_high); + printf("disk_sectors_low 0x%04x\n", meta->disk_sectors_low); + printf("name <%.16s>\n", meta->name); + printf("type %d\n", meta->type); + printf("stripe_shift %d\n", meta->stripe_shift); + printf("flags %04x\n", meta->flags); + printf("spare "); + for (k = 0; k < 2; k++) + printf(" 0x%08x", meta->spare[k]); + printf("\n"); + printf("disks "); + for (k = 0; k < JMICRON_MAX_DISKS; k++) + printf(" 0x%08x", meta->disks[k]); + printf("\n"); + printf("=================================================\n"); +} + +static struct jmicron_raid_conf * +jmicron_meta_copy(struct jmicron_raid_conf *meta) +{ + struct jmicron_raid_conf *nmeta; + + nmeta = malloc(sizeof(*meta), M_MD_JMICRON, M_WAITOK); + memcpy(nmeta, meta, sizeof(*meta)); + return (nmeta); +} + +static int +jmicron_meta_total_disks(struct jmicron_raid_conf *meta) +{ + int pos; + + for (pos = 0; pos < JMICRON_MAX_DISKS; pos++) { + if (meta->disks[pos] == 0) + break; + } + return (pos); +} + +static int +jmicron_meta_total_spare(struct jmicron_raid_conf *meta) +{ + int pos, n; + + n = 0; + for (pos = 0; pos < JMICRON_MAX_SPARE; pos++) { + if (meta->spare[pos] != 0) + n++; + } + return (n); +} + +/* + * Generate fake Configuration ID based on disk IDs. + * Note: it will change after each disk set change. + */ +static uint32_t +jmicron_meta_config_id(struct jmicron_raid_conf *meta) +{ + int pos; + uint32_t config_id; + + config_id = 0; + for (pos = 0; pos < JMICRON_MAX_DISKS; pos++) + config_id += meta->disks[pos] << pos; + return (config_id); +} + +static void +jmicron_meta_get_name(struct jmicron_raid_conf *meta, char *buf) +{ + int i; + + strncpy(buf, meta->name, 16); + buf[16] = 0; + for (i = 15; i >= 0; i--) { + if (buf[i] > 0x20) + break; + buf[i] = 0; + } +} + +static void +jmicron_meta_put_name(struct jmicron_raid_conf *meta, char *buf) +{ + + memset(meta->name, 0x20, 16); + memcpy(meta->name, buf, MIN(strlen(meta->name), 16)); +} + +static int +jmicron_meta_find_disk(struct jmicron_raid_conf *meta, uint32_t id) +{ + int pos; + + id &= JMICRON_DISK_MASK; + for (pos = 0; pos < JMICRON_MAX_DISKS; pos++) { + if ((meta->disks[pos] & JMICRON_DISK_MASK) == id) + return (pos); + } + for (pos = 0; pos < 2; pos++) { + if ((meta->spare[pos] & JMICRON_DISK_MASK) == id) + return (-3); + } + return (-1); +} + +static struct jmicron_raid_conf * +jmicron_meta_read(struct g_consumer *cp) +{ + struct g_provider *pp; + struct jmicron_raid_conf *meta; + char *buf; + int error, i; + uint16_t checksum, *ptr; + + pp = cp->provider; + + /* Read the anchor sector. */ + buf = g_read_data(cp, + pp->mediasize - pp->sectorsize, pp->sectorsize, &error); + if (buf == NULL) { + G_RAID_DEBUG(1, "Cannot read metadata from %s (error=%d).", + pp->name, error); + return (NULL); + } + meta = (struct jmicron_raid_conf *)buf; + + /* Check if this is an JMicron RAID struct */ + if (strncmp(meta->signature, JMICRON_MAGIC, strlen(JMICRON_MAGIC))) { + G_RAID_DEBUG(1, "JMicron signature check failed on %s", pp->name); + g_free(buf); + return (NULL); + } + meta = malloc(sizeof(*meta), M_MD_JMICRON, M_WAITOK); + memcpy(meta, buf, min(sizeof(*meta), pp->sectorsize)); + g_free(buf); + + /* Check metadata checksum. */ + for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i < 64; i++) + checksum += *ptr++; + if (checksum != 0) { + G_RAID_DEBUG(1, "JMicron checksum check failed on %s", pp->name); + free(meta, M_MD_JMICRON); + return (NULL); + } + + return (meta); +} + +static int +jmicron_meta_write(struct g_consumer *cp, struct jmicron_raid_conf *meta) +{ + struct g_provider *pp; + char *buf; + int error, i; + uint16_t checksum, *ptr; + + pp = cp->provider; + + /* Recalculate checksum for case if metadata were changed. */ + meta->checksum = 0; + for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i < 64; i++) + checksum += *ptr++; + meta->checksum -= checksum; + + /* Create and fill buffer. */ + buf = malloc(pp->sectorsize, M_MD_JMICRON, M_WAITOK | M_ZERO); + memcpy(buf, meta, sizeof(*meta)); + + error = g_write_data(cp, + pp->mediasize - pp->sectorsize, buf, pp->sectorsize); + if (error != 0) { + G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).", + pp->name, error); + } + + free(buf, M_MD_JMICRON); + return (error); +} + +static int +jmicron_meta_erase(struct g_consumer *cp) +{ + struct g_provider *pp; + char *buf; + int error; + + pp = cp->provider; + buf = malloc(pp->sectorsize, M_MD_JMICRON, M_WAITOK | M_ZERO); + error = g_write_data(cp, + pp->mediasize - pp->sectorsize, buf, pp->sectorsize); + if (error != 0) { + G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).", + pp->name, error); + } + free(buf, M_MD_JMICRON); + return (error); +} + +static struct g_raid_disk * +g_raid_md_jmicron_get_disk(struct g_raid_softc *sc, int id) +{ + struct g_raid_disk *disk; + struct g_raid_md_jmicron_perdisk *pd; + + TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { + pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; + if (pd->pd_disk_pos == id) + break; + } + return (disk); +} + +static int +g_raid_md_jmicron_supported(int level, int qual, int disks, int force) +{ + + if (disks > 8) + return (0); + switch (level) { + case G_RAID_VOLUME_RL_RAID0: + if (disks < 1) + return (0); + if (!force && (disks < 2 || disks > 6)) + return (0); + break; + case G_RAID_VOLUME_RL_RAID1: + if (disks < 1) + return (0); + if (!force && (disks != 2)) + return (0); + break; + case G_RAID_VOLUME_RL_RAID1E: + if (disks < 2) + return (0); + if (!force && (disks != 4)) + return (0); + break; + case G_RAID_VOLUME_RL_SINGLE: + if (disks != 1) + return (0); + break; + case G_RAID_VOLUME_RL_CONCAT: + if (disks < 2) + return (0); + break; + case G_RAID_VOLUME_RL_RAID5: + if (disks < 3) + return (0); + if (!force) + return (0); + break; + default: + return (0); + } + if (qual != G_RAID_VOLUME_RLQ_NONE) + return (0); + return (1); +} + +static int +g_raid_md_jmicron_start_disk(struct g_raid_disk *disk) +{ + struct g_raid_softc *sc; + struct g_raid_subdisk *sd, *tmpsd; + struct g_raid_disk *olddisk, *tmpdisk; + struct g_raid_md_object *md; + struct g_raid_md_jmicron_object *mdi; + struct g_raid_md_jmicron_perdisk *pd, *oldpd; + struct jmicron_raid_conf *meta; + int disk_pos, resurrection = 0; + + sc = disk->d_softc; + md = sc->sc_md; + mdi = (struct g_raid_md_jmicron_object *)md; + meta = mdi->mdio_meta; + pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; + olddisk = NULL; + + /* Find disk position in metadata by it's serial. */ + disk_pos = jmicron_meta_find_disk(meta, pd->pd_disk_id); + if (disk_pos < 0) { + G_RAID_DEBUG1(1, sc, "Unknown, probably new or stale disk"); + /* If we are in the start process, that's all for now. */ + if (!mdi->mdio_started) + goto nofit; + /* + * If we have already started - try to get use of the disk. + * Try to replace OFFLINE disks first, then FAILED. + */ + TAILQ_FOREACH(tmpdisk, &sc->sc_disks, d_next) { + if (tmpdisk->d_state != G_RAID_DISK_S_OFFLINE && + tmpdisk->d_state != G_RAID_DISK_S_FAILED) + continue; +#if 0 + /* Make sure this disk is big enough. */ + TAILQ_FOREACH(sd, &tmpdisk->d_subdisks, sd_next) { + if (sd->sd_offset + sd->sd_size + 4096 > + (off_t)pd->pd_disk_meta.sectors * 512) { + G_RAID_DEBUG1(1, sc, + "Disk too small (%llu < %llu)", + ((unsigned long long) + pd->pd_disk_meta.sectors) * 512, + (unsigned long long) + sd->sd_offset + sd->sd_size + 4096); + break; + } + } + if (sd != NULL) + continue; +#endif + if (tmpdisk->d_state == G_RAID_DISK_S_OFFLINE) { + olddisk = tmpdisk; + break; + } else if (olddisk == NULL) + olddisk = tmpdisk; + } + if (olddisk == NULL) { +nofit: + if (disk_pos == -3 || pd->pd_disk_pos == -3) { + g_raid_change_disk_state(disk, + G_RAID_DISK_S_SPARE); + return (1); + } else { + g_raid_change_disk_state(disk, + G_RAID_DISK_S_STALE); + return (0); + } + } + oldpd = (struct g_raid_md_jmicron_perdisk *)olddisk->d_md_data; + disk_pos = oldpd->pd_disk_pos; + resurrection = 1; + } + + if (olddisk == NULL) { + /* Find placeholder by position. */ + olddisk = g_raid_md_jmicron_get_disk(sc, disk_pos); + if (olddisk == NULL) + panic("No disk at position %d!", disk_pos); + if (olddisk->d_state != G_RAID_DISK_S_OFFLINE) { + G_RAID_DEBUG1(1, sc, "More then one disk for pos %d", + disk_pos); + g_raid_change_disk_state(disk, G_RAID_DISK_S_STALE); + return (0); + } + oldpd = (struct g_raid_md_jmicron_perdisk *)olddisk->d_md_data; + } + + /* Replace failed disk or placeholder with new disk. */ + TAILQ_FOREACH_SAFE(sd, &olddisk->d_subdisks, sd_next, tmpsd) { + TAILQ_REMOVE(&olddisk->d_subdisks, sd, sd_next); + TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); + sd->sd_disk = disk; + } + oldpd->pd_disk_pos = -2; + pd->pd_disk_pos = disk_pos; + /* Update global metadata just in case. */ + meta->disks[disk_pos] = pd->pd_disk_id; + + /* If it was placeholder -- destroy it. */ + if (olddisk->d_state == G_RAID_DISK_S_OFFLINE) { + g_raid_destroy_disk(olddisk); + } else { + /* Otherwise, make it STALE_FAILED. */ + g_raid_change_disk_state(olddisk, G_RAID_DISK_S_STALE_FAILED); + } + + /* Welcome the new disk. */ + g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); + TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { + + /* + * Different disks may have different sizes/offsets, + * especially in concat mode. Update. + */ + if (pd->pd_meta != NULL && !resurrection) { + sd->sd_offset = + (off_t)pd->pd_meta->offset * 16 * 512; //ZZZ + sd->sd_size = + (((off_t)pd->pd_meta->disk_sectors_high << 16) + + pd->pd_meta->disk_sectors_low) * 512; + } + + if (resurrection) { + /* Stale disk, almost same as new. */ + g_raid_change_subdisk_state(sd, + G_RAID_SUBDISK_S_NEW); + } else if ((meta->flags & JMICRON_F_BADSEC) != 0 && + (pd->pd_meta->flags & JMICRON_F_BADSEC) == 0) { + /* Cold-inserted or rebuilding disk. */ + g_raid_change_subdisk_state(sd, + G_RAID_SUBDISK_S_NEW); + } else if (pd->pd_meta->flags & JMICRON_F_UNSYNC) { + /* Dirty or resyncing disk.. */ + g_raid_change_subdisk_state(sd, + G_RAID_SUBDISK_S_STALE); + } else { + /* Up to date disk. */ + g_raid_change_subdisk_state(sd, + G_RAID_SUBDISK_S_ACTIVE); + } + g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, + G_RAID_EVENT_SUBDISK); + } + + /* Update status of our need for spare. */ + if (mdi->mdio_started) { + mdi->mdio_incomplete = + (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < + mdi->mdio_total_disks); + } + + return (resurrection); +} + +static void +g_disk_md_jmicron_retaste(void *arg, int pending) +{ + + G_RAID_DEBUG(1, "Array is not complete, trying to retaste."); + g_retaste(&g_raid_class); + free(arg, M_MD_JMICRON); +} + +static void +g_raid_md_jmicron_refill(struct g_raid_softc *sc) +{ + struct g_raid_md_object *md; + struct g_raid_md_jmicron_object *mdi; + struct jmicron_raid_conf *meta; + struct g_raid_disk *disk; + struct task *task; + int update, na; + + md = sc->sc_md; + mdi = (struct g_raid_md_jmicron_object *)md; + meta = mdi->mdio_meta; + update = 0; + do { + /* Make sure we miss anything. */ + na = g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE); + if (na == mdi->mdio_total_disks) + break; + + G_RAID_DEBUG1(1, md->mdo_softc, + "Array is not complete (%d of %d), " + "trying to refill.", na, mdi->mdio_total_disks); + + /* Try to get use some of STALE disks. */ + TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { + if (disk->d_state == G_RAID_DISK_S_STALE) { + update += g_raid_md_jmicron_start_disk(disk); + if (disk->d_state == G_RAID_DISK_S_ACTIVE) + break; + } + } + if (disk != NULL) + continue; + + /* Try to get use some of SPARE disks. */ + TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { + if (disk->d_state == G_RAID_DISK_S_SPARE) { + update += g_raid_md_jmicron_start_disk(disk); + if (disk->d_state == G_RAID_DISK_S_ACTIVE) + break; + } + } + } while (disk != NULL); + + /* Write new metadata if we changed something. */ + if (update) { + g_raid_md_write_jmicron(md, NULL, NULL, NULL); + meta = mdi->mdio_meta; + } + + /* Update status of our need for spare. */ + mdi->mdio_incomplete = (g_raid_ndisks(sc, G_RAID_DISK_S_ACTIVE) < + mdi->mdio_total_disks); + + /* Request retaste hoping to find spare. */ + if (mdi->mdio_incomplete) { + task = malloc(sizeof(struct task), + M_MD_JMICRON, M_WAITOK | M_ZERO); + TASK_INIT(task, 0, g_disk_md_jmicron_retaste, task); + taskqueue_enqueue(taskqueue_swi, task); + } +} + +static void +g_raid_md_jmicron_start(struct g_raid_softc *sc) +{ + struct g_raid_md_object *md; + struct g_raid_md_jmicron_object *mdi; + struct g_raid_md_jmicron_perdisk *pd; + struct jmicron_raid_conf *meta; + struct g_raid_volume *vol; + struct g_raid_subdisk *sd; + struct g_raid_disk *disk; + off_t size; + int j, disk_pos; + char buf[17]; + + md = sc->sc_md; + mdi = (struct g_raid_md_jmicron_object *)md; + meta = mdi->mdio_meta; + + /* Create volumes and subdisks. */ + jmicron_meta_get_name(meta, buf); + vol = g_raid_create_volume(sc, buf); + size = ((off_t)meta->disk_sectors_high << 16) + meta->disk_sectors_low; + size *= 512; //ZZZ + if (meta->type == JMICRON_T_RAID0) { + vol->v_raid_level = G_RAID_VOLUME_RL_RAID0; + vol->v_mediasize = size * mdi->mdio_total_disks; + } else if (meta->type == JMICRON_T_RAID1) { + vol->v_raid_level = G_RAID_VOLUME_RL_RAID1; + vol->v_mediasize = size; + } else if (meta->type == JMICRON_T_RAID01) { + vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E; + vol->v_mediasize = size * mdi->mdio_total_disks / 2; + } else if (meta->type == JMICRON_T_CONCAT) { + vol->v_raid_level = G_RAID_VOLUME_RL_CONCAT; + vol->v_mediasize = 0; + } else if (meta->type == JMICRON_T_RAID5) { + vol->v_raid_level = G_RAID_VOLUME_RL_RAID5; + vol->v_mediasize = size * (mdi->mdio_total_disks - 1); + } else { + vol->v_raid_level = G_RAID_VOLUME_RL_UNKNOWN; + vol->v_mediasize = 0; + } + vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE; + vol->v_strip_size = 1024 << meta->stripe_shift; //ZZZ + vol->v_disks_count = mdi->mdio_total_disks; + vol->v_sectorsize = 512; //ZZZ + for (j = 0; j < vol->v_disks_count; j++) { + sd = &vol->v_subdisks[j]; + sd->sd_offset = (off_t)meta->offset * 16 * 512; //ZZZ + sd->sd_size = size; + } + g_raid_start_volume(vol); + + /* Create disk placeholders to store data for later writing. */ + for (disk_pos = 0; disk_pos < mdi->mdio_total_disks; disk_pos++) { + pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); + pd->pd_disk_pos = disk_pos; + pd->pd_disk_id = meta->disks[disk_pos]; + disk = g_raid_create_disk(sc); + disk->d_md_data = (void *)pd; + disk->d_state = G_RAID_DISK_S_OFFLINE; + sd = &vol->v_subdisks[disk_pos]; + sd->sd_disk = disk; + TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); + } + + /* Make all disks found till the moment take their places. */ + do { + TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { + if (disk->d_state == G_RAID_DISK_S_NONE) { + g_raid_md_jmicron_start_disk(disk); + break; + } + } + } while (disk != NULL); + + mdi->mdio_started = 1; + G_RAID_DEBUG1(0, sc, "Array started."); + g_raid_md_write_jmicron(md, NULL, NULL, NULL); + + /* Pickup any STALE/SPARE disks to refill array if needed. */ + g_raid_md_jmicron_refill(sc); + + g_raid_event_send(vol, G_RAID_VOLUME_E_START, G_RAID_EVENT_VOLUME); + + callout_stop(&mdi->mdio_start_co); + G_RAID_DEBUG1(1, sc, "root_mount_rel %p", mdi->mdio_rootmount); + root_mount_rel(mdi->mdio_rootmount); + mdi->mdio_rootmount = NULL; +} + +static void +g_raid_md_jmicron_new_disk(struct g_raid_disk *disk) +{ + struct g_raid_softc *sc; + struct g_raid_md_object *md; + struct g_raid_md_jmicron_object *mdi; + struct jmicron_raid_conf *pdmeta; + struct g_raid_md_jmicron_perdisk *pd; + + sc = disk->d_softc; + md = sc->sc_md; + mdi = (struct g_raid_md_jmicron_object *)md; + pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data; + pdmeta = pd->pd_meta; + + if (mdi->mdio_started) { + if (g_raid_md_jmicron_start_disk(disk)) + g_raid_md_write_jmicron(md, NULL, NULL, NULL); + } else { + /* If we haven't started yet - check metadata freshness. */ + if (mdi->mdio_meta == NULL) { + G_RAID_DEBUG1(1, sc, "Newer disk"); + if (mdi->mdio_meta != NULL) + free(mdi->mdio_meta, M_MD_JMICRON); + mdi->mdio_meta = jmicron_meta_copy(pdmeta); + mdi->mdio_total_disks = jmicron_meta_total_disks(pdmeta); + mdi->mdio_disks_present = 1; + } else { + mdi->mdio_disks_present++; + G_RAID_DEBUG1(1, sc, "Matching disk (%d of %d+%d up)", + mdi->mdio_disks_present, + mdi->mdio_total_disks, + jmicron_meta_total_spare(mdi->mdio_meta)); + mdi->mdio_meta->flags |= + pdmeta->flags & JMICRON_F_BADSEC; + } + /* If we collected all needed disks - start array. */ + if (mdi->mdio_disks_present == mdi->mdio_total_disks + + jmicron_meta_total_spare(mdi->mdio_meta)) + g_raid_md_jmicron_start(sc); + } +} + +static void +g_raid_jmicron_go(void *arg) +{ + struct g_raid_softc *sc; + struct g_raid_md_object *md; + struct g_raid_md_jmicron_object *mdi; + + sc = arg; + md = sc->sc_md; + mdi = (struct g_raid_md_jmicron_object *)md; + sx_xlock(&sc->sc_lock); + if (!mdi->mdio_started) { + G_RAID_DEBUG1(0, sc, "Force array start due to timeout."); + g_raid_event_send(sc, G_RAID_NODE_E_START, 0); + } + sx_xunlock(&sc->sc_lock); +} + +static int +g_raid_md_create_jmicron(struct g_raid_md_object *md, struct g_class *mp, + struct g_geom **gp) +{ + struct g_raid_softc *sc; + struct g_raid_md_jmicron_object *mdi; + char name[16]; + + mdi = (struct g_raid_md_jmicron_object *)md; + mdi->mdio_config_id = arc4random(); + snprintf(name, sizeof(name), "JMicron-%08x", mdi->mdio_config_id); + sc = g_raid_create_node(mp, name, md); + if (sc == NULL) + return (G_RAID_MD_TASTE_FAIL); + md->mdo_softc = sc; + *gp = sc->sc_geom; + return (G_RAID_MD_TASTE_NEW); +} + +static int +g_raid_md_taste_jmicron(struct g_raid_md_object *md, struct g_class *mp, + struct g_consumer *cp, struct g_geom **gp) +{ + struct g_consumer *rcp; + struct g_provider *pp; + struct g_raid_md_jmicron_object *mdi, *mdi1; + struct g_raid_softc *sc; + struct g_raid_disk *disk; + struct jmicron_raid_conf *meta; + struct g_raid_md_jmicron_perdisk *pd; + struct g_geom *geom; + int error, disk_pos, result, spare, len; + char name[16]; + uint16_t vendor; + + G_RAID_DEBUG(1, "Tasting JMicron on %s", cp->provider->name); + mdi = (struct g_raid_md_jmicron_object *)md; + pp = cp->provider; + + /* Read metadata from device. */ + meta = NULL; + spare = 0; + vendor = 0xffff; + disk_pos = 0; + if (g_access(cp, 1, 0, 0) != 0) + return (G_RAID_MD_TASTE_FAIL); + g_topology_unlock(); + len = 2; + if (pp->geom->rank == 1) + g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor); + meta = jmicron_meta_read(cp); + g_topology_lock(); + g_access(cp, -1, 0, 0); + if (meta == NULL) { + if (g_raid_aggressive_spare) { + if (vendor == 0x197b) { + G_RAID_DEBUG(1, + "No JMicron metadata, forcing spare."); + spare = 2; + goto search; + } else { + G_RAID_DEBUG(1, + "JMicron vendor mismatch 0x%04x != 0x197b", + vendor); + } + } + return (G_RAID_MD_TASTE_FAIL); + } + + /* Check this disk position in obtained metadata. */ + disk_pos = jmicron_meta_find_disk(meta, meta->disk_id); + if (disk_pos == -1) { + G_RAID_DEBUG(1, "JMicron disk_id %08x not found", + meta->disk_id); + goto fail1; + } + + /* Metadata valid. Print it. */ + g_raid_md_jmicron_print(meta); + G_RAID_DEBUG(1, "JMicron disk position %d", disk_pos); + spare = (disk_pos == -2) ? 1 : 0; + +search: + /* Search for matching node. */ + sc = NULL; + mdi1 = NULL; + LIST_FOREACH(geom, &mp->geom, geom) { + sc = geom->softc; + if (sc == NULL) + continue; + if (sc->sc_stopping != 0) + continue; + if (sc->sc_md->mdo_class != md->mdo_class) + continue; + mdi1 = (struct g_raid_md_jmicron_object *)sc->sc_md; + if (spare == 2) { + if (mdi1->mdio_incomplete) + break; + } else { + if (mdi1->mdio_config_id == + jmicron_meta_config_id(meta)) + break; + } + } + + /* Found matching node. */ + if (geom != NULL) { + G_RAID_DEBUG(1, "Found matching array %s", sc->sc_name); + result = G_RAID_MD_TASTE_EXISTING; + + } else if (spare) { /* Not found needy node -- left for later. */ + G_RAID_DEBUG(1, "Spare is not needed at this time"); + goto fail1; + + } else { /* Not found matching node -- create one. */ + result = G_RAID_MD_TASTE_NEW; + mdi->mdio_config_id = jmicron_meta_config_id(meta); + snprintf(name, sizeof(name), "JMicron-%08x", + mdi->mdio_config_id); + sc = g_raid_create_node(mp, name, md); + md->mdo_softc = sc; + geom = sc->sc_geom; + callout_init(&mdi->mdio_start_co, 1); + callout_reset(&mdi->mdio_start_co, g_raid_start_timeout * hz, + g_raid_jmicron_go, sc); + mdi->mdio_rootmount = root_mount_hold("GRAID-JMicron"); + G_RAID_DEBUG1(1, sc, "root_mount_hold %p", mdi->mdio_rootmount); + } + + rcp = g_new_consumer(geom); + g_attach(rcp, pp); + if (g_access(rcp, 1, 1, 1) != 0) + ; //goto fail1; + + g_topology_unlock(); + sx_xlock(&sc->sc_lock); + + pd = malloc(sizeof(*pd), M_MD_JMICRON, M_WAITOK | M_ZERO); + pd->pd_meta = meta; + if (spare == 2) { +// pd->pd_disk_meta.sectors = pp->mediasize / pp->sectorsize; + pd->pd_disk_pos = -3; + pd->pd_disk_id = arc4random() & JMICRON_DISK_MASK; + } else { + pd->pd_disk_pos = -1; + pd->pd_disk_id = meta->disk_id; + } + disk = g_raid_create_disk(sc); + disk->d_md_data = (void *)pd; + disk->d_consumer = rcp; + rcp->private = disk; + + /* Read kernel dumping information. */ + disk->d_kd.offset = 0; + disk->d_kd.length = OFF_MAX; + len = sizeof(disk->d_kd); + error = g_io_getattr("GEOM::kerneldump", rcp, &len, &disk->d_kd); + if (disk->d_kd.di.dumper == NULL) + G_RAID_DEBUG1(2, sc, "Dumping not supported by %s: %d.", + rcp->provider->name, error); + + g_raid_md_jmicron_new_disk(disk); + + sx_xunlock(&sc->sc_lock); + g_topology_lock(); + *gp = geom; + return (result); +fail1: + free(meta, M_MD_JMICRON); + return (G_RAID_MD_TASTE_FAIL); +} + *** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
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