From owner-svn-src-projects@FreeBSD.ORG Sat Mar 12 22:48:51 2011 Return-Path: Delivered-To: svn-src-projects@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D85381065673; Sat, 12 Mar 2011 22:48:51 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c]) by mx1.freebsd.org (Postfix) with ESMTP id C3B1A8FC08; Sat, 12 Mar 2011 22:48:51 +0000 (UTC) Received: from svn.freebsd.org (localhost [127.0.0.1]) by svn.freebsd.org (8.14.3/8.14.3) with ESMTP id p2CMmpCU032433; Sat, 12 Mar 2011 22:48:51 GMT (envelope-from mav@svn.freebsd.org) Received: (from mav@localhost) by svn.freebsd.org (8.14.3/8.14.3/Submit) id p2CMmpaj032428; Sat, 12 Mar 2011 22:48:51 GMT (envelope-from mav@svn.freebsd.org) Message-Id: <201103122248.p2CMmpaj032428@svn.freebsd.org> From: Alexander Motin Date: Sat, 12 Mar 2011 22:48:51 +0000 (UTC) To: src-committers@freebsd.org, svn-src-projects@freebsd.org X-SVN-Group: projects MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: Subject: svn commit: r219583 - in projects/graid/head: sbin/geom/class/raid sys/conf sys/geom/raid sys/modules/geom/geom_raid X-BeenThere: svn-src-projects@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "SVN commit messages for the src " projects" tree" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 12 Mar 2011 22:48:51 -0000 Author: mav Date: Sat Mar 12 22:48:51 2011 New Revision: 219583 URL: http://svn.freebsd.org/changeset/base/219583 Log: Add support for SiliconImage RAID BIOS metadata format. Added: projects/graid/head/sys/geom/raid/md_sii.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 Sat Mar 12 22:46:36 2011 (r219582) +++ projects/graid/head/sbin/geom/class/raid/graid.8 Sat Mar 12 22:48:51 2011 (r219583) @@ -24,7 +24,7 @@ .\" .\" $FreeBSD$ .\" -.Dd February 15, 2011 +.Dd March 13, 2011 .Dt GRAID 8 .Os .Sh NAME @@ -214,6 +214,13 @@ Supports configurations: RAID0 (2+ disks RAID10 (4 disks), CONCAT (2+ disks). Configurations not supported by JMicron RAID BIOS, but enforceable on your own risk: RAID1 (3+ disks), RAID1E (3+ disks), RAID10 (6+ disks), RAID5 (3+ disks). +.It SiI +The format used by SiliconImage RAID BIOS. +Supports one volume per array. +Supports configurations: RAID0 (2+ disks), RAID1 (2 disks), +RAID5 (3+ disks), RAID10 (4 disks), SINGLE (1 disk), CONCAT (2+ disks). +Configurations not supported by SiliconImage RAID BIOS, but enforceable on your +own risk: RAID1 (3+ disks), RAID10 (6+ 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 Sat Mar 12 22:46:36 2011 (r219582) +++ projects/graid/head/sys/conf/files Sat Mar 12 22:48:51 2011 (r219583) @@ -2115,6 +2115,7 @@ geom/raid/g_raid_tr_if.m optional geom_r geom/raid/md_intel.c optional geom_raid geom/raid/md_jmicron.c optional geom_raid geom/raid/md_promise.c optional geom_raid +geom/raid/md_sii.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_sii.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ projects/graid/head/sys/geom/raid/md_sii.c Sat Mar 12 22:48:51 2011 (r219583) @@ -0,0 +1,1658 @@ +/*- + * Copyright (c) 2011 Alexander Motin + * 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 +__FBSDID("$FreeBSD$"); + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "geom/raid/g_raid.h" +#include "g_raid_md_if.h" + +static MALLOC_DEFINE(M_MD_SII, "md_sii_data", "GEOM_RAID SiI metadata"); + +struct sii_raid_conf { + uint16_t ata_params_00_53[54]; + uint64_t total_sectors; /* 54 - 57 */ + uint16_t ata_params_58_81[72]; + uint16_t product_id; /* 130 */ + uint16_t vendor_id; /* 131 */ + uint16_t version_minor; /* 132 */ + uint16_t version_major; /* 133 */ + uint8_t timestamp[6]; /* 134 - 136 */ + uint16_t strip_sectors; /* 137 */ + uint16_t dummy_2; + uint8_t disk_number; /* 139 */ + uint8_t type; +#define SII_T_RAID0 0x00 +#define SII_T_RAID1 0x01 +#define SII_T_RAID10 0x02 +#define SII_T_SPARE 0x03 +#define SII_T_CONCAT 0x04 +#define SII_T_RAID5 0x10 +#define SII_T_RESERVED 0xfd +#define SII_T_JBOD 0xff + + uint8_t raid0_disks; /* 140 */ + uint8_t raid0_ident; + uint8_t raid1_disks; /* 141 */ + uint8_t raid1_ident; + uint64_t rebuild_lba; /* 142 - 145 */ + uint32_t generation; /* 146 - 147 */ + uint8_t disk_status; /* 148 */ +#define SII_S_CURRENT 0x01 +#define SII_S_REBUILD 0x02 +#define SII_S_DROPPED 0x03 +#define SII_S_REMOVED 0x04 + + uint8_t raid_status; +#define SII_S_ONLINE 0x01 +#define SII_S_AVAILABLE 0x02 + + uint8_t raid_location; /* 149 */ + uint8_t disk_location; + uint8_t auto_rebuild; /* 150 */ +#define SII_R_REBUILD 0x00 +#define SII_R_NOREBUILD 0xff + + uint8_t dummy_3; + uint8_t name[16]; /* 151 - 158 */ + uint16_t checksum; /* 159 */ + uint8_t ata_params_160_254[190]; + uint16_t ata_checksum; /* 255 */ +} __packed; + +struct g_raid_md_sii_perdisk { + struct sii_raid_conf *pd_meta; + int pd_disk_pos; + off_t pd_disk_size; +}; + +struct g_raid_md_sii_object { + struct g_raid_md_object mdio_base; + uint8_t mdio_timestamp[6]; + uint8_t mdio_location; + uint32_t mdio_generation; + struct sii_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_sii; +static g_raid_md_taste_t g_raid_md_taste_sii; +static g_raid_md_event_t g_raid_md_event_sii; +static g_raid_md_ctl_t g_raid_md_ctl_sii; +static g_raid_md_write_t g_raid_md_write_sii; +static g_raid_md_fail_disk_t g_raid_md_fail_disk_sii; +static g_raid_md_free_disk_t g_raid_md_free_disk_sii; +static g_raid_md_free_t g_raid_md_free_sii; + +static kobj_method_t g_raid_md_sii_methods[] = { + KOBJMETHOD(g_raid_md_create, g_raid_md_create_sii), + KOBJMETHOD(g_raid_md_taste, g_raid_md_taste_sii), + KOBJMETHOD(g_raid_md_event, g_raid_md_event_sii), + KOBJMETHOD(g_raid_md_ctl, g_raid_md_ctl_sii), + KOBJMETHOD(g_raid_md_write, g_raid_md_write_sii), + KOBJMETHOD(g_raid_md_fail_disk, g_raid_md_fail_disk_sii), + KOBJMETHOD(g_raid_md_free_disk, g_raid_md_free_disk_sii), + KOBJMETHOD(g_raid_md_free, g_raid_md_free_sii), + { 0, 0 } +}; + +static struct g_raid_md_class g_raid_md_sii_class = { + "SiI", + g_raid_md_sii_methods, + sizeof(struct g_raid_md_sii_object), + .mdc_priority = 100 +}; + +static void +g_raid_md_sii_print(struct sii_raid_conf *meta) +{ + + if (g_raid_debug < 1) + return; + + printf("********* ATA SiI RAID Metadata *********\n"); + printf("total_sectors %llu\n", + (long long unsigned)meta->total_sectors); + printf("product_id 0x%04x\n", meta->product_id); + printf("vendor_id 0x%04x\n", meta->vendor_id); + printf("version_minor 0x%04x\n", meta->version_minor); + printf("version_major 0x%04x\n", meta->version_major); + printf("timestamp 0x%02x%02x%02x%02x%02x%02x\n", + meta->timestamp[5], meta->timestamp[4], meta->timestamp[3], + meta->timestamp[2], meta->timestamp[1], meta->timestamp[0]); + printf("strip_sectors %d\n", meta->strip_sectors); + printf("disk_number %d\n", meta->disk_number); + printf("type 0x%02x\n", meta->type); + printf("raid0_disks %d\n", meta->raid0_disks); + printf("raid0_ident %d\n", meta->raid0_ident); + printf("raid1_disks %d\n", meta->raid1_disks); + printf("raid1_ident %d\n", meta->raid1_ident); + printf("rebuild_lba %llu\n", + (long long unsigned)meta->rebuild_lba); + printf("generation %d\n", meta->generation); + printf("disk_status %d\n", meta->disk_status); + printf("raid_status %d\n", meta->raid_status); + printf("raid_location %d\n", meta->raid_location); + printf("disk_location %d\n", meta->disk_location); + printf("auto_rebuild %d\n", meta->auto_rebuild); + printf("name <%.16s>\n", meta->name); + printf("checksum 0x%04x\n", meta->checksum); + printf("=================================================\n"); +} + +static struct sii_raid_conf * +sii_meta_copy(struct sii_raid_conf *meta) +{ + struct sii_raid_conf *nmeta; + + nmeta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK); + memcpy(nmeta, meta, sizeof(*meta)); + return (nmeta); +} + +static int +sii_meta_total_disks(struct sii_raid_conf *meta) +{ + + switch (meta->type) { + case SII_T_RAID0: + case SII_T_RAID5: + case SII_T_CONCAT: + return (meta->raid0_disks); + case SII_T_RAID1: + return (meta->raid1_disks); + case SII_T_RAID10: + return (meta->raid0_disks * meta->raid1_disks); + case SII_T_SPARE: + case SII_T_JBOD: + return (1); + } + return (0); +} + +static int +sii_meta_disk_pos(struct sii_raid_conf *meta, struct sii_raid_conf *pdmeta) +{ + + if (pdmeta->type == SII_T_SPARE) + return (-3); + + if (memcmp(&meta->timestamp, &pdmeta->timestamp, 6) != 0) + return (-1); + + switch (pdmeta->type) { + case SII_T_RAID0: + case SII_T_RAID1: + case SII_T_RAID5: + case SII_T_CONCAT: + return (pdmeta->disk_number); + case SII_T_RAID10: + return (pdmeta->raid1_ident * pdmeta->raid1_disks + + pdmeta->raid0_ident); + case SII_T_JBOD: + return (0); + } + return (-1); +} + +static void +sii_meta_get_name(struct sii_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 +sii_meta_put_name(struct sii_raid_conf *meta, char *buf) +{ + + memset(meta->name, 0x20, 16); + memcpy(meta->name, buf, MIN(strlen(meta->name), 16)); +} + +static struct sii_raid_conf * +sii_meta_read(struct g_consumer *cp) +{ + struct g_provider *pp; + struct sii_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 = malloc(sizeof(*meta), M_MD_SII, M_WAITOK); + memcpy(meta, buf, min(sizeof(*meta), pp->sectorsize)); + g_free(buf); + + /* Check metadata major version. */ + if (meta->version_major != 2) { + G_RAID_DEBUG(1, "SiI version check failed on %s (%d.%d)", + pp->name, meta->version_major, meta->version_minor); + free(meta, M_MD_SII); + return (NULL); + } + + /* Check metadata checksum. */ + for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i <= 159; i++) + checksum += *ptr++; + if (checksum != 0) { + G_RAID_DEBUG(1, "SiI checksum check failed on %s", pp->name); + free(meta, M_MD_SII); + return (NULL); + } + + /* Check raid type. */ + if (meta->type != SII_T_RAID0 && meta->type != SII_T_RAID1 && + meta->type != SII_T_RAID10 && meta->type != SII_T_SPARE && + meta->type != SII_T_RAID5 && meta->type != SII_T_CONCAT && + meta->type != SII_T_JBOD) { + G_RAID_DEBUG(1, "SiI unknown RAID level on %s (0x%02x)", + pp->name, meta->type); + free(meta, M_MD_SII); + return (NULL); + } + + return (meta); +} + +static int +sii_meta_write(struct g_consumer *cp, struct sii_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 < 159; i++) + checksum += *ptr++; + meta->checksum -= checksum; + + /* Create and fill buffer. */ + buf = malloc(pp->sectorsize, M_MD_SII, M_WAITOK | M_ZERO); + memcpy(buf, meta, sizeof(*meta)); + + /* Write 4 copies of metadata. */ + for (i = 0; i < 4; i++) { + error = g_write_data(cp, + pp->mediasize - (pp->sectorsize * (1 + 0x200 * i)), + buf, pp->sectorsize); + if (error != 0) { + G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).", + pp->name, error); + break; + } + } + + free(buf, M_MD_SII); + return (error); +} + +static int +sii_meta_erase(struct g_consumer *cp) +{ + struct g_provider *pp; + char *buf; + int error, i; + + pp = cp->provider; + buf = malloc(pp->sectorsize, M_MD_SII, M_WAITOK | M_ZERO); + /* Write 4 copies of metadata. */ + for (i = 0; i < 4; i++) { + error = g_write_data(cp, + pp->mediasize - (pp->sectorsize * (1 + 0x200 * i)), + buf, pp->sectorsize); + if (error != 0) { + G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).", + pp->name, error); + } + } + free(buf, M_MD_SII); + return (error); +} + +static struct g_raid_disk * +g_raid_md_sii_get_disk(struct g_raid_softc *sc, int id) +{ + struct g_raid_disk *disk; + struct g_raid_md_sii_perdisk *pd; + + TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { + pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data; + if (pd->pd_disk_pos == id) + break; + } + return (disk); +} + +static int +g_raid_md_sii_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 (disks % 2 != 0) + 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); + break; + default: + return (0); + } + if (qual != G_RAID_VOLUME_RLQ_NONE) + return (0); + return (1); +} + +static int +g_raid_md_sii_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_sii_object *mdi; + struct g_raid_md_sii_perdisk *pd, *oldpd; + struct sii_raid_conf *meta; + int disk_pos, resurrection = 0; + + sc = disk->d_softc; + md = sc->sc_md; + mdi = (struct g_raid_md_sii_object *)md; + meta = mdi->mdio_meta; + pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data; + olddisk = NULL; + + /* Find disk position in metadata by it's serial. */ + if (pd->pd_meta != NULL) + disk_pos = sii_meta_disk_pos(meta, pd->pd_meta); + else + disk_pos = -3; + 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; + /* Make sure this disk is big enough. */ + TAILQ_FOREACH(sd, &tmpdisk->d_subdisks, sd_next) { + if (sd->sd_offset + sd->sd_size + 512 > + pd->pd_disk_size) { + G_RAID_DEBUG1(1, sc, + "Disk too small (%ju < %ju)", + pd->pd_disk_size, + sd->sd_offset + sd->sd_size + 512); + break; + } + } + if (sd != NULL) + continue; + 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_sii_perdisk *)olddisk->d_md_data; + disk_pos = oldpd->pd_disk_pos; + resurrection = 1; + } + + if (olddisk == NULL) { + /* Find placeholder by position. */ + olddisk = g_raid_md_sii_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_sii_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; + + /* 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. */ + if (resurrection) + g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); + else if (pd->pd_meta->disk_status == SII_S_CURRENT || + pd->pd_meta->disk_status == SII_S_REBUILD) + g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); + else + g_raid_change_disk_state(disk, G_RAID_DISK_S_FAILED); + TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { + + /* + * Different disks may have different sizes, + * in concat mode. Update from real disk size. + */ + if (meta->type == SII_T_CONCAT || meta->type == SII_T_JBOD) + sd->sd_size = pd->pd_disk_size - 0x800 * 512; + + if (resurrection) { + /* New or ex-spare disk. */ + g_raid_change_subdisk_state(sd, + G_RAID_SUBDISK_S_NEW); + } else if (pd->pd_meta->disk_status == SII_S_REBUILD) { + /* Rebuilding disk. */ + g_raid_change_subdisk_state(sd, + G_RAID_SUBDISK_S_REBUILD); + if (pd->pd_meta->generation == meta->generation) + sd->sd_rebuild_pos = pd->pd_meta->rebuild_lba * 512; + else + sd->sd_rebuild_pos = 0; + } else if (pd->pd_meta->disk_status == SII_S_CURRENT) { + if (pd->pd_meta->raid_status == SII_S_ONLINE || + pd->pd_meta->generation != meta->generation) { + /* 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); + } + } else { + g_raid_change_subdisk_state(sd, + G_RAID_SUBDISK_S_FAILED); + } + 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_sii_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_SII); +} + +static void +g_raid_md_sii_refill(struct g_raid_softc *sc) +{ + struct g_raid_md_object *md; + struct g_raid_md_sii_object *mdi; + struct sii_raid_conf *meta; + struct g_raid_disk *disk; + struct task *task; + int update, na; + + md = sc->sc_md; + mdi = (struct g_raid_md_sii_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_sii_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_sii_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_sii(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_SII, M_WAITOK | M_ZERO); + TASK_INIT(task, 0, g_disk_md_sii_retaste, task); + taskqueue_enqueue(taskqueue_swi, task); + } +} + +static void +g_raid_md_sii_start(struct g_raid_softc *sc) +{ + struct g_raid_md_object *md; + struct g_raid_md_sii_object *mdi; + struct g_raid_md_sii_perdisk *pd; + struct sii_raid_conf *meta; + struct g_raid_volume *vol; + struct g_raid_subdisk *sd; + struct g_raid_disk *disk, *best; + off_t size; + int j, disk_pos; + uint32_t gendiff, bestgendiff; + char buf[17]; + + md = sc->sc_md; + mdi = (struct g_raid_md_sii_object *)md; + meta = mdi->mdio_meta; + + /* Create volumes and subdisks. */ + sii_meta_get_name(meta, buf); + vol = g_raid_create_volume(sc, buf); + vol->v_mediasize = (off_t)meta->total_sectors * 512; + if (meta->type == SII_T_RAID0) { + vol->v_raid_level = G_RAID_VOLUME_RL_RAID0; + size = vol->v_mediasize / mdi->mdio_total_disks; + } else if (meta->type == SII_T_RAID1) { + vol->v_raid_level = G_RAID_VOLUME_RL_RAID1; + size = vol->v_mediasize; + } else if (meta->type == SII_T_RAID10) { + vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E; + size = vol->v_mediasize / (mdi->mdio_total_disks / 2); + } else if (meta->type == SII_T_CONCAT) { + if (mdi->mdio_total_disks == 1) + vol->v_raid_level = G_RAID_VOLUME_RL_SINGLE; + else + vol->v_raid_level = G_RAID_VOLUME_RL_CONCAT; + size = 0; + } else if (meta->type == SII_T_RAID5) { + vol->v_raid_level = G_RAID_VOLUME_RL_RAID5; + size = vol->v_mediasize / (mdi->mdio_total_disks - 1); + } else if (meta->type == SII_T_JBOD) { + vol->v_raid_level = G_RAID_VOLUME_RL_SINGLE; + size = 0; + } else { + vol->v_raid_level = G_RAID_VOLUME_RL_UNKNOWN; + size = 0; + } + vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE; + vol->v_strip_size = meta->strip_sectors * 512; //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 = 0; + 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_SII, M_WAITOK | M_ZERO); + pd->pd_disk_pos = 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 + * in order of their generation numbers. + */ + do { + best = NULL; + bestgendiff = 0xffffffff; + TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { + if (disk->d_state != G_RAID_DISK_S_NONE) + continue; + pd = disk->d_md_data; + if (pd->pd_meta == NULL) + gendiff = 0xfffffffe; + else + gendiff = meta->generation - + pd->pd_meta->generation; + if (gendiff < bestgendiff) { + best = disk; + bestgendiff = gendiff; + } + } + if (best != NULL) + g_raid_md_sii_start_disk(best); + } while (best != NULL); + + mdi->mdio_started = 1; + G_RAID_DEBUG1(0, sc, "Array started."); + g_raid_md_write_sii(md, NULL, NULL, NULL); + + /* Pickup any STALE/SPARE disks to refill array if needed. */ + g_raid_md_sii_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_sii_new_disk(struct g_raid_disk *disk) +{ + struct g_raid_softc *sc; + struct g_raid_md_object *md; + struct g_raid_md_sii_object *mdi; + struct sii_raid_conf *pdmeta; + struct g_raid_md_sii_perdisk *pd; + + sc = disk->d_softc; + md = sc->sc_md; + mdi = (struct g_raid_md_sii_object *)md; + pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data; + pdmeta = pd->pd_meta; + + if (mdi->mdio_started) { + if (g_raid_md_sii_start_disk(disk)) + g_raid_md_write_sii(md, NULL, NULL, NULL); + } else { + if (mdi->mdio_meta == NULL || + ((int32_t)(pdmeta->generation - mdi->mdio_generation)) > 0) { + G_RAID_DEBUG1(1, sc, "Newer disk"); + if (mdi->mdio_meta != NULL) + free(mdi->mdio_meta, M_MD_SII); + mdi->mdio_meta = sii_meta_copy(pdmeta); + mdi->mdio_generation = mdi->mdio_meta->generation; + mdi->mdio_total_disks = sii_meta_total_disks(pdmeta); + mdi->mdio_disks_present = 1; + } else if (pdmeta->generation == mdi->mdio_generation) { + mdi->mdio_disks_present++; + G_RAID_DEBUG1(1, sc, "Matching disk (%d of %d up)", + mdi->mdio_disks_present, + mdi->mdio_total_disks); + } else { + G_RAID_DEBUG1(1, sc, "Older disk"); + } + + /* If we collected all needed disks - start array. */ + if (mdi->mdio_disks_present == mdi->mdio_total_disks) + g_raid_md_sii_start(sc); + } +} + +static void +g_raid_sii_go(void *arg) +{ + struct g_raid_softc *sc; + struct g_raid_md_object *md; + struct g_raid_md_sii_object *mdi; + + sc = arg; + md = sc->sc_md; + mdi = (struct g_raid_md_sii_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_sii(struct g_raid_md_object *md, struct g_class *mp, + struct g_geom **gp) +{ + struct g_raid_softc *sc; + struct g_raid_md_sii_object *mdi; + char name[32]; + + mdi = (struct g_raid_md_sii_object *)md; + mdi->mdio_timestamp[5] = arc4random(); + mdi->mdio_timestamp[4] = arc4random(); + mdi->mdio_timestamp[3] = arc4random(); + mdi->mdio_timestamp[2] = arc4random(); + mdi->mdio_timestamp[1] = arc4random(); + mdi->mdio_timestamp[0] = arc4random(); + mdi->mdio_location = arc4random(); + mdi->mdio_generation = 0; + snprintf(name, sizeof(name), "SiI-%02x%02x%02x%02x%02x%02x", + mdi->mdio_timestamp[5], mdi->mdio_timestamp[4], + mdi->mdio_timestamp[3], mdi->mdio_timestamp[2], + mdi->mdio_timestamp[1], mdi->mdio_timestamp[0]); + 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_sii(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_sii_object *mdi, *mdi1; + struct g_raid_softc *sc; + struct g_raid_disk *disk; + struct sii_raid_conf *meta; + struct g_raid_md_sii_perdisk *pd; + struct g_geom *geom; + int error, disk_pos, result, spare, len; + char name[32]; + uint16_t vendor; + + G_RAID_DEBUG(1, "Tasting SiI on %s", cp->provider->name); + mdi = (struct g_raid_md_sii_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 = sii_meta_read(cp); + g_topology_lock(); + g_access(cp, -1, 0, 0); + if (meta == NULL) { + if (g_raid_aggressive_spare) { + if (vendor == 0x1095) { + G_RAID_DEBUG(1, + "No SiI metadata, forcing spare."); + spare = 2; + goto search; + } else { + G_RAID_DEBUG(1, + "SiI vendor mismatch 0x%04x != 0x1095", + vendor); + } + } + return (G_RAID_MD_TASTE_FAIL); + } + + /* Check this disk position in obtained metadata. */ + disk_pos = sii_meta_disk_pos(meta, meta); + if (disk_pos == -1) { + G_RAID_DEBUG(1, "SiI disk position not found"); + goto fail1; + } + + /* Metadata valid. Print it. */ + g_raid_md_sii_print(meta); + G_RAID_DEBUG(1, "SiI disk position %d", disk_pos); + spare = (meta->type == SII_T_SPARE) ? 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_sii_object *)sc->sc_md; + if (spare) { + if (mdi1->mdio_incomplete) + break; + } else { + if (mdi1->mdio_location == meta->raid_location && + memcmp(&mdi1->mdio_timestamp, + &meta->timestamp, 6) == 0) + 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"); *** DIFF OUTPUT TRUNCATED AT 1000 LINES ***