609a74746a
If at least one subdisk in the volume supports it, BIO_DELETE requests will be propagated down. Unfortunatelly, for RAID levels with redundancy unmapped blocks will be mapped back during first rebuild/resync process. Sponsored by: iXsystems, Inc. MFC after: 1 month
1670 lines
46 KiB
C
1670 lines
46 KiB
C
/*-
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* Copyright (c) 2011 Alexander Motin <mav@FreeBSD.org>
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* Copyright (c) 2000 - 2008 Søren Schmidt <sos@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/bio.h>
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#include <sys/endian.h>
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#include <sys/kernel.h>
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#include <sys/kobj.h>
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#include <sys/limits.h>
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#include <sys/lock.h>
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#include <sys/malloc.h>
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#include <sys/mutex.h>
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#include <sys/systm.h>
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#include <sys/taskqueue.h>
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#include <geom/geom.h>
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#include "geom/raid/g_raid.h"
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#include "g_raid_md_if.h"
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static MALLOC_DEFINE(M_MD_SII, "md_sii_data", "GEOM_RAID SiI metadata");
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struct sii_raid_conf {
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uint16_t ata_params_00_53[54];
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uint64_t total_sectors; /* 54 - 57 */
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uint16_t ata_params_58_81[72];
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uint16_t product_id; /* 130 */
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uint16_t vendor_id; /* 131 */
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uint16_t version_minor; /* 132 */
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uint16_t version_major; /* 133 */
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uint8_t timestamp[6]; /* 134 - 136 */
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uint16_t strip_sectors; /* 137 */
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uint16_t dummy_2;
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uint8_t disk_number; /* 139 */
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uint8_t type;
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#define SII_T_RAID0 0x00
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#define SII_T_RAID1 0x01
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#define SII_T_RAID01 0x02
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#define SII_T_SPARE 0x03
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#define SII_T_CONCAT 0x04
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#define SII_T_RAID5 0x10
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#define SII_T_RESERVED 0xfd
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#define SII_T_JBOD 0xff
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uint8_t raid0_disks; /* 140 */
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uint8_t raid0_ident;
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uint8_t raid1_disks; /* 141 */
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uint8_t raid1_ident;
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uint64_t rebuild_lba; /* 142 - 145 */
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uint32_t generation; /* 146 - 147 */
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uint8_t disk_status; /* 148 */
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#define SII_S_CURRENT 0x01
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#define SII_S_REBUILD 0x02
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#define SII_S_DROPPED 0x03
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#define SII_S_REMOVED 0x04
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uint8_t raid_status;
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#define SII_S_ONLINE 0x01
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#define SII_S_AVAILABLE 0x02
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uint8_t raid_location; /* 149 */
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uint8_t disk_location;
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uint8_t auto_rebuild; /* 150 */
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#define SII_R_REBUILD 0x00
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#define SII_R_NOREBUILD 0xff
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uint8_t dummy_3;
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uint8_t name[16]; /* 151 - 158 */
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uint16_t checksum; /* 159 */
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uint16_t ata_params_160_255[96];
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} __packed;
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struct g_raid_md_sii_perdisk {
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struct sii_raid_conf *pd_meta;
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int pd_disk_pos;
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off_t pd_disk_size;
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};
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struct g_raid_md_sii_object {
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struct g_raid_md_object mdio_base;
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uint8_t mdio_timestamp[6];
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uint8_t mdio_location;
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uint32_t mdio_generation;
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struct sii_raid_conf *mdio_meta;
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struct callout mdio_start_co; /* STARTING state timer. */
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int mdio_total_disks;
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int mdio_disks_present;
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int mdio_started;
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int mdio_incomplete;
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struct root_hold_token *mdio_rootmount; /* Root mount delay token. */
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};
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static g_raid_md_create_t g_raid_md_create_sii;
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static g_raid_md_taste_t g_raid_md_taste_sii;
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static g_raid_md_event_t g_raid_md_event_sii;
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static g_raid_md_ctl_t g_raid_md_ctl_sii;
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static g_raid_md_write_t g_raid_md_write_sii;
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static g_raid_md_fail_disk_t g_raid_md_fail_disk_sii;
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static g_raid_md_free_disk_t g_raid_md_free_disk_sii;
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static g_raid_md_free_t g_raid_md_free_sii;
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static kobj_method_t g_raid_md_sii_methods[] = {
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KOBJMETHOD(g_raid_md_create, g_raid_md_create_sii),
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KOBJMETHOD(g_raid_md_taste, g_raid_md_taste_sii),
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KOBJMETHOD(g_raid_md_event, g_raid_md_event_sii),
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KOBJMETHOD(g_raid_md_ctl, g_raid_md_ctl_sii),
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KOBJMETHOD(g_raid_md_write, g_raid_md_write_sii),
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KOBJMETHOD(g_raid_md_fail_disk, g_raid_md_fail_disk_sii),
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KOBJMETHOD(g_raid_md_free_disk, g_raid_md_free_disk_sii),
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KOBJMETHOD(g_raid_md_free, g_raid_md_free_sii),
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{ 0, 0 }
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};
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static struct g_raid_md_class g_raid_md_sii_class = {
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"SiI",
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g_raid_md_sii_methods,
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sizeof(struct g_raid_md_sii_object),
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.mdc_enable = 1,
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.mdc_priority = 100
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};
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static void
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g_raid_md_sii_print(struct sii_raid_conf *meta)
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{
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if (g_raid_debug < 1)
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return;
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printf("********* ATA SiI RAID Metadata *********\n");
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printf("total_sectors %llu\n",
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(long long unsigned)meta->total_sectors);
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printf("product_id 0x%04x\n", meta->product_id);
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printf("vendor_id 0x%04x\n", meta->vendor_id);
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printf("version_minor 0x%04x\n", meta->version_minor);
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printf("version_major 0x%04x\n", meta->version_major);
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printf("timestamp 0x%02x%02x%02x%02x%02x%02x\n",
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meta->timestamp[5], meta->timestamp[4], meta->timestamp[3],
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meta->timestamp[2], meta->timestamp[1], meta->timestamp[0]);
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printf("strip_sectors %d\n", meta->strip_sectors);
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printf("disk_number %d\n", meta->disk_number);
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printf("type 0x%02x\n", meta->type);
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printf("raid0_disks %d\n", meta->raid0_disks);
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printf("raid0_ident %d\n", meta->raid0_ident);
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printf("raid1_disks %d\n", meta->raid1_disks);
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printf("raid1_ident %d\n", meta->raid1_ident);
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printf("rebuild_lba %llu\n",
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(long long unsigned)meta->rebuild_lba);
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printf("generation %d\n", meta->generation);
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printf("disk_status %d\n", meta->disk_status);
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printf("raid_status %d\n", meta->raid_status);
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printf("raid_location %d\n", meta->raid_location);
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printf("disk_location %d\n", meta->disk_location);
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printf("auto_rebuild %d\n", meta->auto_rebuild);
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printf("name <%.16s>\n", meta->name);
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printf("checksum 0x%04x\n", meta->checksum);
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printf("=================================================\n");
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}
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static struct sii_raid_conf *
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sii_meta_copy(struct sii_raid_conf *meta)
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{
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struct sii_raid_conf *nmeta;
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nmeta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK);
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memcpy(nmeta, meta, sizeof(*meta));
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return (nmeta);
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}
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static int
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sii_meta_total_disks(struct sii_raid_conf *meta)
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{
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switch (meta->type) {
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case SII_T_RAID0:
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case SII_T_RAID5:
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case SII_T_CONCAT:
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return (meta->raid0_disks);
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case SII_T_RAID1:
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return (meta->raid1_disks);
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case SII_T_RAID01:
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return (meta->raid0_disks * meta->raid1_disks);
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case SII_T_SPARE:
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case SII_T_JBOD:
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return (1);
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}
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return (0);
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}
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static int
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sii_meta_disk_pos(struct sii_raid_conf *meta, struct sii_raid_conf *pdmeta)
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{
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if (pdmeta->type == SII_T_SPARE)
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return (-3);
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if (memcmp(&meta->timestamp, &pdmeta->timestamp, 6) != 0)
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return (-1);
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switch (pdmeta->type) {
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case SII_T_RAID0:
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case SII_T_RAID1:
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case SII_T_RAID5:
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case SII_T_CONCAT:
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return (pdmeta->disk_number);
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case SII_T_RAID01:
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return (pdmeta->raid1_ident * pdmeta->raid1_disks +
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pdmeta->raid0_ident);
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case SII_T_JBOD:
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return (0);
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}
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return (-1);
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}
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static void
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sii_meta_get_name(struct sii_raid_conf *meta, char *buf)
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{
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int i;
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strncpy(buf, meta->name, 16);
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buf[16] = 0;
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for (i = 15; i >= 0; i--) {
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if (buf[i] > 0x20)
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break;
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buf[i] = 0;
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}
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}
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static void
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sii_meta_put_name(struct sii_raid_conf *meta, char *buf)
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{
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memset(meta->name, 0x20, 16);
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memcpy(meta->name, buf, MIN(strlen(buf), 16));
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}
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static struct sii_raid_conf *
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sii_meta_read(struct g_consumer *cp)
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{
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struct g_provider *pp;
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struct sii_raid_conf *meta;
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char *buf;
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int error, i;
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uint16_t checksum, *ptr;
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pp = cp->provider;
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/* Read the anchor sector. */
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buf = g_read_data(cp,
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pp->mediasize - pp->sectorsize, pp->sectorsize, &error);
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if (buf == NULL) {
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G_RAID_DEBUG(1, "Cannot read metadata from %s (error=%d).",
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pp->name, error);
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return (NULL);
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}
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meta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK);
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memcpy(meta, buf, min(sizeof(*meta), pp->sectorsize));
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g_free(buf);
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/* Check vendor ID. */
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if (meta->vendor_id != 0x1095) {
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G_RAID_DEBUG(1, "SiI vendor ID check failed on %s (0x%04x)",
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pp->name, meta->vendor_id);
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free(meta, M_MD_SII);
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return (NULL);
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}
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/* Check metadata major version. */
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if (meta->version_major != 2) {
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G_RAID_DEBUG(1, "SiI version check failed on %s (%d.%d)",
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pp->name, meta->version_major, meta->version_minor);
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free(meta, M_MD_SII);
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return (NULL);
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}
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/* Check metadata checksum. */
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for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i <= 159; i++)
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checksum += *ptr++;
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if (checksum != 0) {
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G_RAID_DEBUG(1, "SiI checksum check failed on %s", pp->name);
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free(meta, M_MD_SII);
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return (NULL);
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}
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/* Check raid type. */
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if (meta->type != SII_T_RAID0 && meta->type != SII_T_RAID1 &&
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meta->type != SII_T_RAID01 && meta->type != SII_T_SPARE &&
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meta->type != SII_T_RAID5 && meta->type != SII_T_CONCAT &&
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meta->type != SII_T_JBOD) {
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G_RAID_DEBUG(1, "SiI unknown RAID level on %s (0x%02x)",
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pp->name, meta->type);
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free(meta, M_MD_SII);
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return (NULL);
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}
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return (meta);
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}
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static int
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sii_meta_write(struct g_consumer *cp, struct sii_raid_conf *meta)
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{
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struct g_provider *pp;
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char *buf;
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int error, i;
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uint16_t checksum, *ptr;
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pp = cp->provider;
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/* Recalculate checksum for case if metadata were changed. */
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meta->checksum = 0;
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for (checksum = 0, ptr = (uint16_t *)meta, i = 0; i < 159; i++)
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checksum += *ptr++;
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meta->checksum -= checksum;
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/* Create and fill buffer. */
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buf = malloc(pp->sectorsize, M_MD_SII, M_WAITOK | M_ZERO);
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memcpy(buf, meta, sizeof(*meta));
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/* Write 4 copies of metadata. */
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for (i = 0; i < 4; i++) {
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error = g_write_data(cp,
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pp->mediasize - (pp->sectorsize * (1 + 0x200 * i)),
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buf, pp->sectorsize);
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if (error != 0) {
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G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).",
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pp->name, error);
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break;
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}
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}
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free(buf, M_MD_SII);
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return (error);
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}
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static int
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sii_meta_erase(struct g_consumer *cp)
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{
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struct g_provider *pp;
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char *buf;
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int error, i;
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pp = cp->provider;
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buf = malloc(pp->sectorsize, M_MD_SII, M_WAITOK | M_ZERO);
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/* Write 4 copies of metadata. */
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for (i = 0; i < 4; i++) {
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error = g_write_data(cp,
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pp->mediasize - (pp->sectorsize * (1 + 0x200 * i)),
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buf, pp->sectorsize);
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if (error != 0) {
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G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).",
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pp->name, error);
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}
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}
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free(buf, M_MD_SII);
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return (error);
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}
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static int
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sii_meta_write_spare(struct g_consumer *cp)
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{
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struct sii_raid_conf *meta;
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int error;
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meta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK | M_ZERO);
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meta->total_sectors = cp->provider->mediasize /
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cp->provider->sectorsize - 0x800;
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meta->vendor_id = 0x1095;
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meta->version_minor = 0;
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meta->version_major = 2;
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meta->timestamp[0] = arc4random();
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meta->timestamp[1] = arc4random();
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meta->timestamp[2] = arc4random();
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meta->timestamp[3] = arc4random();
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meta->timestamp[4] = arc4random();
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meta->timestamp[5] = arc4random();
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meta->type = SII_T_SPARE;
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meta->generation = 1;
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meta->raid1_ident = 0xff;
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meta->raid_location = arc4random();
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error = sii_meta_write(cp, meta);
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free(meta, M_MD_SII);
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return (error);
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}
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static struct g_raid_disk *
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g_raid_md_sii_get_disk(struct g_raid_softc *sc, int id)
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{
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struct g_raid_disk *disk;
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struct g_raid_md_sii_perdisk *pd;
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TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
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pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
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if (pd->pd_disk_pos == id)
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break;
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}
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return (disk);
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}
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static int
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g_raid_md_sii_supported(int level, int qual, int disks, int force)
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{
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if (disks > 8)
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return (0);
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switch (level) {
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case G_RAID_VOLUME_RL_RAID0:
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if (disks < 1)
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return (0);
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if (!force && (disks < 2 || disks > 6))
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return (0);
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break;
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case G_RAID_VOLUME_RL_RAID1:
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if (disks < 1)
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return (0);
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if (!force && (disks != 2))
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return (0);
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break;
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case G_RAID_VOLUME_RL_RAID1E:
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if (disks < 2)
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return (0);
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if (disks % 2 != 0)
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return (0);
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if (!force && (disks < 4))
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return (0);
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break;
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case G_RAID_VOLUME_RL_SINGLE:
|
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if (disks != 1)
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return (0);
|
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break;
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case G_RAID_VOLUME_RL_CONCAT:
|
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if (disks < 2)
|
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return (0);
|
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break;
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case G_RAID_VOLUME_RL_RAID5:
|
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if (disks < 3)
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return (0);
|
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if (qual != G_RAID_VOLUME_RLQ_R5LS)
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return (0);
|
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break;
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default:
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return (0);
|
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}
|
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if (level != G_RAID_VOLUME_RL_RAID5 && 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 g_raid_disk *disk;
|
|
struct task *task;
|
|
int update, na;
|
|
|
|
md = sc->sc_md;
|
|
mdi = (struct g_raid_md_sii_object *)md;
|
|
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);
|
|
|
|
/* 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, -1);
|
|
vol->v_mediasize = (off_t)meta->total_sectors * 512;
|
|
vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_NONE;
|
|
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_RAID01) {
|
|
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;
|
|
vol->v_raid_level_qualifier = G_RAID_VOLUME_RLQ_R5LS;
|
|
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_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;
|
|
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);
|
|
}
|
|
}
|
|
|
|
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 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;
|
|
vendor = 0xffff;
|
|
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");
|
|
goto fail1;
|
|
|
|
} else { /* Not found matching node -- create one. */
|
|
result = G_RAID_MD_TASTE_NEW;
|
|
memcpy(&mdi->mdio_timestamp, &meta->timestamp, 6);
|
|
mdi->mdio_location = meta->raid_location;
|
|
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);
|
|
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_sii_go, sc);
|
|
mdi->mdio_rootmount = root_mount_hold("GRAID-SiI");
|
|
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_SII, M_WAITOK | M_ZERO);
|
|
pd->pd_meta = meta;
|
|
if (spare == 2) {
|
|
pd->pd_disk_pos = -3;
|
|
} else {
|
|
pd->pd_disk_pos = -1;
|
|
}
|
|
pd->pd_disk_size = pp->mediasize;
|
|
disk = g_raid_create_disk(sc);
|
|
disk->d_md_data = (void *)pd;
|
|
disk->d_consumer = rcp;
|
|
rcp->private = disk;
|
|
|
|
g_raid_get_disk_info(disk);
|
|
|
|
g_raid_md_sii_new_disk(disk);
|
|
|
|
sx_xunlock(&sc->sc_lock);
|
|
g_topology_lock();
|
|
*gp = geom;
|
|
return (result);
|
|
fail1:
|
|
free(meta, M_MD_SII);
|
|
return (G_RAID_MD_TASTE_FAIL);
|
|
}
|
|
|
|
static int
|
|
g_raid_md_event_sii(struct g_raid_md_object *md,
|
|
struct g_raid_disk *disk, u_int event)
|
|
{
|
|
struct g_raid_softc *sc;
|
|
struct g_raid_subdisk *sd;
|
|
struct g_raid_md_sii_object *mdi;
|
|
struct g_raid_md_sii_perdisk *pd;
|
|
|
|
sc = md->mdo_softc;
|
|
mdi = (struct g_raid_md_sii_object *)md;
|
|
if (disk == NULL) {
|
|
switch (event) {
|
|
case G_RAID_NODE_E_START:
|
|
if (!mdi->mdio_started)
|
|
g_raid_md_sii_start(sc);
|
|
return (0);
|
|
}
|
|
return (-1);
|
|
}
|
|
pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
|
|
switch (event) {
|
|
case G_RAID_DISK_E_DISCONNECTED:
|
|
/* If disk was assigned, just update statuses. */
|
|
if (pd->pd_disk_pos >= 0) {
|
|
g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE);
|
|
if (disk->d_consumer) {
|
|
g_raid_kill_consumer(sc, disk->d_consumer);
|
|
disk->d_consumer = NULL;
|
|
}
|
|
TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) {
|
|
g_raid_change_subdisk_state(sd,
|
|
G_RAID_SUBDISK_S_NONE);
|
|
g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED,
|
|
G_RAID_EVENT_SUBDISK);
|
|
}
|
|
} else {
|
|
/* Otherwise -- delete. */
|
|
g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE);
|
|
g_raid_destroy_disk(disk);
|
|
}
|
|
|
|
/* Write updated metadata to all disks. */
|
|
g_raid_md_write_sii(md, NULL, NULL, NULL);
|
|
|
|
/* Check if anything left except placeholders. */
|
|
if (g_raid_ndisks(sc, -1) ==
|
|
g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE))
|
|
g_raid_destroy_node(sc, 0);
|
|
else
|
|
g_raid_md_sii_refill(sc);
|
|
return (0);
|
|
}
|
|
return (-2);
|
|
}
|
|
|
|
static int
|
|
g_raid_md_ctl_sii(struct g_raid_md_object *md,
|
|
struct gctl_req *req)
|
|
{
|
|
struct g_raid_softc *sc;
|
|
struct g_raid_volume *vol;
|
|
struct g_raid_subdisk *sd;
|
|
struct g_raid_disk *disk;
|
|
struct g_raid_md_sii_object *mdi;
|
|
struct g_raid_md_sii_perdisk *pd;
|
|
struct g_consumer *cp;
|
|
struct g_provider *pp;
|
|
char arg[16];
|
|
const char *verb, *volname, *levelname, *diskname;
|
|
int *nargs, *force;
|
|
off_t size, sectorsize, strip;
|
|
intmax_t *sizearg, *striparg;
|
|
int numdisks, i, len, level, qual, update;
|
|
int error;
|
|
|
|
sc = md->mdo_softc;
|
|
mdi = (struct g_raid_md_sii_object *)md;
|
|
verb = gctl_get_param(req, "verb", NULL);
|
|
nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
|
|
error = 0;
|
|
if (strcmp(verb, "label") == 0) {
|
|
|
|
if (*nargs < 4) {
|
|
gctl_error(req, "Invalid number of arguments.");
|
|
return (-1);
|
|
}
|
|
volname = gctl_get_asciiparam(req, "arg1");
|
|
if (volname == NULL) {
|
|
gctl_error(req, "No volume name.");
|
|
return (-2);
|
|
}
|
|
levelname = gctl_get_asciiparam(req, "arg2");
|
|
if (levelname == NULL) {
|
|
gctl_error(req, "No RAID level.");
|
|
return (-3);
|
|
}
|
|
if (strcasecmp(levelname, "RAID5") == 0)
|
|
levelname = "RAID5-LS";
|
|
if (g_raid_volume_str2level(levelname, &level, &qual)) {
|
|
gctl_error(req, "Unknown RAID level '%s'.", levelname);
|
|
return (-4);
|
|
}
|
|
numdisks = *nargs - 3;
|
|
force = gctl_get_paraml(req, "force", sizeof(*force));
|
|
if (!g_raid_md_sii_supported(level, qual, numdisks,
|
|
force ? *force : 0)) {
|
|
gctl_error(req, "Unsupported RAID level "
|
|
"(0x%02x/0x%02x), or number of disks (%d).",
|
|
level, qual, numdisks);
|
|
return (-5);
|
|
}
|
|
|
|
/* Search for disks, connect them and probe. */
|
|
size = 0x7fffffffffffffffllu;
|
|
sectorsize = 0;
|
|
for (i = 0; i < numdisks; i++) {
|
|
snprintf(arg, sizeof(arg), "arg%d", i + 3);
|
|
diskname = gctl_get_asciiparam(req, arg);
|
|
if (diskname == NULL) {
|
|
gctl_error(req, "No disk name (%s).", arg);
|
|
error = -6;
|
|
break;
|
|
}
|
|
if (strcmp(diskname, "NONE") == 0) {
|
|
cp = NULL;
|
|
pp = NULL;
|
|
} else {
|
|
g_topology_lock();
|
|
cp = g_raid_open_consumer(sc, diskname);
|
|
if (cp == NULL) {
|
|
gctl_error(req, "Can't open '%s'.",
|
|
diskname);
|
|
g_topology_unlock();
|
|
error = -7;
|
|
break;
|
|
}
|
|
pp = cp->provider;
|
|
}
|
|
pd = malloc(sizeof(*pd), M_MD_SII, M_WAITOK | M_ZERO);
|
|
pd->pd_disk_pos = i;
|
|
disk = g_raid_create_disk(sc);
|
|
disk->d_md_data = (void *)pd;
|
|
disk->d_consumer = cp;
|
|
if (cp == NULL)
|
|
continue;
|
|
cp->private = disk;
|
|
g_topology_unlock();
|
|
|
|
g_raid_get_disk_info(disk);
|
|
|
|
pd->pd_disk_size = pp->mediasize;
|
|
if (size > pp->mediasize)
|
|
size = pp->mediasize;
|
|
if (sectorsize < pp->sectorsize)
|
|
sectorsize = pp->sectorsize;
|
|
}
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
if (sectorsize <= 0) {
|
|
gctl_error(req, "Can't get sector size.");
|
|
return (-8);
|
|
}
|
|
|
|
/* Reserve space for metadata. */
|
|
size -= 0x800 * sectorsize;
|
|
|
|
/* Handle size argument. */
|
|
len = sizeof(*sizearg);
|
|
sizearg = gctl_get_param(req, "size", &len);
|
|
if (sizearg != NULL && len == sizeof(*sizearg) &&
|
|
*sizearg > 0) {
|
|
if (*sizearg > size) {
|
|
gctl_error(req, "Size too big %lld > %lld.",
|
|
(long long)*sizearg, (long long)size);
|
|
return (-9);
|
|
}
|
|
size = *sizearg;
|
|
}
|
|
|
|
/* Handle strip argument. */
|
|
strip = 131072;
|
|
len = sizeof(*striparg);
|
|
striparg = gctl_get_param(req, "strip", &len);
|
|
if (striparg != NULL && len == sizeof(*striparg) &&
|
|
*striparg > 0) {
|
|
if (*striparg < sectorsize) {
|
|
gctl_error(req, "Strip size too small.");
|
|
return (-10);
|
|
}
|
|
if (*striparg % sectorsize != 0) {
|
|
gctl_error(req, "Incorrect strip size.");
|
|
return (-11);
|
|
}
|
|
if (strip > 65535 * sectorsize) {
|
|
gctl_error(req, "Strip size too big.");
|
|
return (-12);
|
|
}
|
|
strip = *striparg;
|
|
}
|
|
|
|
/* Round size down to strip or sector. */
|
|
if (level == G_RAID_VOLUME_RL_RAID1)
|
|
size -= (size % sectorsize);
|
|
else if (level == G_RAID_VOLUME_RL_RAID1E &&
|
|
(numdisks & 1) != 0)
|
|
size -= (size % (2 * strip));
|
|
else
|
|
size -= (size % strip);
|
|
if (size <= 0) {
|
|
gctl_error(req, "Size too small.");
|
|
return (-13);
|
|
}
|
|
if (size > 0xffffffffffffllu * sectorsize) {
|
|
gctl_error(req, "Size too big.");
|
|
return (-14);
|
|
}
|
|
|
|
/* We have all we need, create things: volume, ... */
|
|
mdi->mdio_total_disks = numdisks;
|
|
mdi->mdio_started = 1;
|
|
vol = g_raid_create_volume(sc, volname, -1);
|
|
vol->v_md_data = (void *)(intptr_t)0;
|
|
vol->v_raid_level = level;
|
|
vol->v_raid_level_qualifier = qual;
|
|
vol->v_strip_size = strip;
|
|
vol->v_disks_count = numdisks;
|
|
if (level == G_RAID_VOLUME_RL_RAID0 ||
|
|
level == G_RAID_VOLUME_RL_CONCAT ||
|
|
level == G_RAID_VOLUME_RL_SINGLE)
|
|
vol->v_mediasize = size * numdisks;
|
|
else if (level == G_RAID_VOLUME_RL_RAID1)
|
|
vol->v_mediasize = size;
|
|
else if (level == G_RAID_VOLUME_RL_RAID5)
|
|
vol->v_mediasize = size * (numdisks - 1);
|
|
else { /* RAID1E */
|
|
vol->v_mediasize = ((size * numdisks) / strip / 2) *
|
|
strip;
|
|
}
|
|
vol->v_sectorsize = sectorsize;
|
|
g_raid_start_volume(vol);
|
|
|
|
/* , and subdisks. */
|
|
TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
|
|
pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
|
|
sd = &vol->v_subdisks[pd->pd_disk_pos];
|
|
sd->sd_disk = disk;
|
|
sd->sd_offset = 0;
|
|
sd->sd_size = size;
|
|
TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next);
|
|
if (sd->sd_disk->d_consumer != NULL) {
|
|
g_raid_change_disk_state(disk,
|
|
G_RAID_DISK_S_ACTIVE);
|
|
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);
|
|
} else {
|
|
g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE);
|
|
}
|
|
}
|
|
|
|
/* Write metadata based on created entities. */
|
|
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);
|
|
return (0);
|
|
}
|
|
if (strcmp(verb, "delete") == 0) {
|
|
|
|
/* Check if some volume is still open. */
|
|
force = gctl_get_paraml(req, "force", sizeof(*force));
|
|
if (force != NULL && *force == 0 &&
|
|
g_raid_nopens(sc) != 0) {
|
|
gctl_error(req, "Some volume is still open.");
|
|
return (-4);
|
|
}
|
|
|
|
TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
|
|
if (disk->d_consumer)
|
|
sii_meta_erase(disk->d_consumer);
|
|
}
|
|
g_raid_destroy_node(sc, 0);
|
|
return (0);
|
|
}
|
|
if (strcmp(verb, "remove") == 0 ||
|
|
strcmp(verb, "fail") == 0) {
|
|
if (*nargs < 2) {
|
|
gctl_error(req, "Invalid number of arguments.");
|
|
return (-1);
|
|
}
|
|
for (i = 1; i < *nargs; i++) {
|
|
snprintf(arg, sizeof(arg), "arg%d", i);
|
|
diskname = gctl_get_asciiparam(req, arg);
|
|
if (diskname == NULL) {
|
|
gctl_error(req, "No disk name (%s).", arg);
|
|
error = -2;
|
|
break;
|
|
}
|
|
if (strncmp(diskname, "/dev/", 5) == 0)
|
|
diskname += 5;
|
|
|
|
TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
|
|
if (disk->d_consumer != NULL &&
|
|
disk->d_consumer->provider != NULL &&
|
|
strcmp(disk->d_consumer->provider->name,
|
|
diskname) == 0)
|
|
break;
|
|
}
|
|
if (disk == NULL) {
|
|
gctl_error(req, "Disk '%s' not found.",
|
|
diskname);
|
|
error = -3;
|
|
break;
|
|
}
|
|
|
|
if (strcmp(verb, "fail") == 0) {
|
|
g_raid_md_fail_disk_sii(md, NULL, disk);
|
|
continue;
|
|
}
|
|
|
|
pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
|
|
|
|
/* Erase metadata on deleting disk. */
|
|
sii_meta_erase(disk->d_consumer);
|
|
|
|
/* If disk was assigned, just update statuses. */
|
|
if (pd->pd_disk_pos >= 0) {
|
|
g_raid_change_disk_state(disk, G_RAID_DISK_S_OFFLINE);
|
|
g_raid_kill_consumer(sc, disk->d_consumer);
|
|
disk->d_consumer = NULL;
|
|
TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) {
|
|
g_raid_change_subdisk_state(sd,
|
|
G_RAID_SUBDISK_S_NONE);
|
|
g_raid_event_send(sd, G_RAID_SUBDISK_E_DISCONNECTED,
|
|
G_RAID_EVENT_SUBDISK);
|
|
}
|
|
} else {
|
|
/* Otherwise -- delete. */
|
|
g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE);
|
|
g_raid_destroy_disk(disk);
|
|
}
|
|
}
|
|
|
|
/* Write updated metadata to remaining disks. */
|
|
g_raid_md_write_sii(md, NULL, NULL, NULL);
|
|
|
|
/* Check if anything left except placeholders. */
|
|
if (g_raid_ndisks(sc, -1) ==
|
|
g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE))
|
|
g_raid_destroy_node(sc, 0);
|
|
else
|
|
g_raid_md_sii_refill(sc);
|
|
return (error);
|
|
}
|
|
if (strcmp(verb, "insert") == 0) {
|
|
if (*nargs < 2) {
|
|
gctl_error(req, "Invalid number of arguments.");
|
|
return (-1);
|
|
}
|
|
update = 0;
|
|
for (i = 1; i < *nargs; i++) {
|
|
/* Get disk name. */
|
|
snprintf(arg, sizeof(arg), "arg%d", i);
|
|
diskname = gctl_get_asciiparam(req, arg);
|
|
if (diskname == NULL) {
|
|
gctl_error(req, "No disk name (%s).", arg);
|
|
error = -3;
|
|
break;
|
|
}
|
|
|
|
/* Try to find provider with specified name. */
|
|
g_topology_lock();
|
|
cp = g_raid_open_consumer(sc, diskname);
|
|
if (cp == NULL) {
|
|
gctl_error(req, "Can't open disk '%s'.",
|
|
diskname);
|
|
g_topology_unlock();
|
|
error = -4;
|
|
break;
|
|
}
|
|
pp = cp->provider;
|
|
|
|
pd = malloc(sizeof(*pd), M_MD_SII, M_WAITOK | M_ZERO);
|
|
pd->pd_disk_pos = -3;
|
|
pd->pd_disk_size = pp->mediasize;
|
|
|
|
disk = g_raid_create_disk(sc);
|
|
disk->d_consumer = cp;
|
|
disk->d_md_data = (void *)pd;
|
|
cp->private = disk;
|
|
g_topology_unlock();
|
|
|
|
g_raid_get_disk_info(disk);
|
|
|
|
/* Welcome the "new" disk. */
|
|
update += g_raid_md_sii_start_disk(disk);
|
|
if (disk->d_state == G_RAID_DISK_S_SPARE) {
|
|
sii_meta_write_spare(cp);
|
|
g_raid_destroy_disk(disk);
|
|
} else if (disk->d_state != G_RAID_DISK_S_ACTIVE) {
|
|
gctl_error(req, "Disk '%s' doesn't fit.",
|
|
diskname);
|
|
g_raid_destroy_disk(disk);
|
|
error = -8;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Write new metadata if we changed something. */
|
|
if (update)
|
|
g_raid_md_write_sii(md, NULL, NULL, NULL);
|
|
return (error);
|
|
}
|
|
gctl_error(req, "Command '%s' is not supported.", verb);
|
|
return (-100);
|
|
}
|
|
|
|
static int
|
|
g_raid_md_write_sii(struct g_raid_md_object *md, struct g_raid_volume *tvol,
|
|
struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk)
|
|
{
|
|
struct g_raid_softc *sc;
|
|
struct g_raid_volume *vol;
|
|
struct g_raid_subdisk *sd;
|
|
struct g_raid_disk *disk;
|
|
struct g_raid_md_sii_object *mdi;
|
|
struct g_raid_md_sii_perdisk *pd;
|
|
struct sii_raid_conf *meta;
|
|
int i;
|
|
|
|
sc = md->mdo_softc;
|
|
mdi = (struct g_raid_md_sii_object *)md;
|
|
|
|
if (sc->sc_stopping == G_RAID_DESTROY_HARD)
|
|
return (0);
|
|
|
|
/* Bump generation. Newly written metadata may differ from previous. */
|
|
mdi->mdio_generation++;
|
|
|
|
/* There is only one volume. */
|
|
vol = TAILQ_FIRST(&sc->sc_volumes);
|
|
|
|
/* Fill global fields. */
|
|
meta = malloc(sizeof(*meta), M_MD_SII, M_WAITOK | M_ZERO);
|
|
if (mdi->mdio_meta)
|
|
memcpy(meta, mdi->mdio_meta, sizeof(*meta));
|
|
meta->total_sectors = vol->v_mediasize / vol->v_sectorsize;
|
|
meta->vendor_id = 0x1095;
|
|
meta->version_minor = 0;
|
|
meta->version_major = 2;
|
|
memcpy(&meta->timestamp, &mdi->mdio_timestamp, 6);
|
|
meta->strip_sectors = vol->v_strip_size / vol->v_sectorsize;
|
|
if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID0) {
|
|
meta->type = SII_T_RAID0;
|
|
meta->raid0_disks = vol->v_disks_count;
|
|
meta->raid1_disks = 0xff;
|
|
} else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) {
|
|
meta->type = SII_T_RAID1;
|
|
meta->raid0_disks = 0xff;
|
|
meta->raid1_disks = vol->v_disks_count;
|
|
} else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) {
|
|
meta->type = SII_T_RAID01;
|
|
meta->raid0_disks = vol->v_disks_count / 2;
|
|
meta->raid1_disks = 2;
|
|
} else if (vol->v_raid_level == G_RAID_VOLUME_RL_CONCAT ||
|
|
vol->v_raid_level == G_RAID_VOLUME_RL_SINGLE) {
|
|
meta->type = SII_T_JBOD;
|
|
meta->raid0_disks = vol->v_disks_count;
|
|
meta->raid1_disks = 0xff;
|
|
} else {
|
|
meta->type = SII_T_RAID5;
|
|
meta->raid0_disks = vol->v_disks_count;
|
|
meta->raid1_disks = 0xff;
|
|
}
|
|
meta->generation = mdi->mdio_generation;
|
|
meta->raid_status = vol->v_dirty ? SII_S_ONLINE : SII_S_AVAILABLE;
|
|
for (i = 0; i < vol->v_disks_count; i++) {
|
|
sd = &vol->v_subdisks[i];
|
|
if (sd->sd_state == G_RAID_SUBDISK_S_STALE ||
|
|
sd->sd_state == G_RAID_SUBDISK_S_RESYNC)
|
|
meta->raid_status = SII_S_ONLINE;
|
|
}
|
|
meta->raid_location = mdi->mdio_location;
|
|
sii_meta_put_name(meta, vol->v_name);
|
|
|
|
/* We are done. Print meta data and store them to disks. */
|
|
if (mdi->mdio_meta != NULL)
|
|
free(mdi->mdio_meta, M_MD_SII);
|
|
mdi->mdio_meta = meta;
|
|
TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
|
|
pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
|
|
if (disk->d_state != G_RAID_DISK_S_ACTIVE)
|
|
continue;
|
|
if (pd->pd_meta != NULL) {
|
|
free(pd->pd_meta, M_MD_SII);
|
|
pd->pd_meta = NULL;
|
|
}
|
|
pd->pd_meta = sii_meta_copy(meta);
|
|
if ((sd = TAILQ_FIRST(&disk->d_subdisks)) != NULL) {
|
|
if (sd->sd_state < G_RAID_SUBDISK_S_NEW)
|
|
pd->pd_meta->disk_status = SII_S_DROPPED;
|
|
else if (sd->sd_state < G_RAID_SUBDISK_S_STALE) {
|
|
pd->pd_meta->disk_status = SII_S_REBUILD;
|
|
pd->pd_meta->rebuild_lba =
|
|
sd->sd_rebuild_pos / vol->v_sectorsize;
|
|
} else
|
|
pd->pd_meta->disk_status = SII_S_CURRENT;
|
|
if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) {
|
|
pd->pd_meta->disk_number = sd->sd_pos;
|
|
pd->pd_meta->raid0_ident = 0xff;
|
|
pd->pd_meta->raid1_ident = 0;
|
|
} else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) {
|
|
pd->pd_meta->disk_number = sd->sd_pos / meta->raid1_disks;
|
|
pd->pd_meta->raid0_ident = sd->sd_pos % meta->raid1_disks;
|
|
pd->pd_meta->raid1_ident = sd->sd_pos / meta->raid1_disks;
|
|
} else {
|
|
pd->pd_meta->disk_number = sd->sd_pos;
|
|
pd->pd_meta->raid0_ident = 0;
|
|
pd->pd_meta->raid1_ident = 0xff;
|
|
}
|
|
}
|
|
G_RAID_DEBUG(1, "Writing SiI metadata to %s",
|
|
g_raid_get_diskname(disk));
|
|
g_raid_md_sii_print(pd->pd_meta);
|
|
sii_meta_write(disk->d_consumer, pd->pd_meta);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
g_raid_md_fail_disk_sii(struct g_raid_md_object *md,
|
|
struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk)
|
|
{
|
|
struct g_raid_softc *sc;
|
|
struct g_raid_md_sii_perdisk *pd;
|
|
struct g_raid_subdisk *sd;
|
|
|
|
sc = md->mdo_softc;
|
|
pd = (struct g_raid_md_sii_perdisk *)tdisk->d_md_data;
|
|
|
|
/* We can't fail disk that is not a part of array now. */
|
|
if (pd->pd_disk_pos < 0)
|
|
return (-1);
|
|
|
|
/*
|
|
* Mark disk as failed in metadata and try to write that metadata
|
|
* to the disk itself to prevent it's later resurrection as STALE.
|
|
*/
|
|
if (tdisk->d_consumer) {
|
|
if (pd->pd_meta) {
|
|
pd->pd_meta->disk_status = SII_S_REMOVED;
|
|
sii_meta_write(tdisk->d_consumer, pd->pd_meta);
|
|
} else
|
|
sii_meta_erase(tdisk->d_consumer);
|
|
}
|
|
|
|
/* Change states. */
|
|
g_raid_change_disk_state(tdisk, G_RAID_DISK_S_FAILED);
|
|
TAILQ_FOREACH(sd, &tdisk->d_subdisks, sd_next) {
|
|
g_raid_change_subdisk_state(sd,
|
|
G_RAID_SUBDISK_S_FAILED);
|
|
g_raid_event_send(sd, G_RAID_SUBDISK_E_FAILED,
|
|
G_RAID_EVENT_SUBDISK);
|
|
}
|
|
|
|
/* Write updated metadata to remaining disks. */
|
|
g_raid_md_write_sii(md, NULL, NULL, tdisk);
|
|
|
|
/* Check if anything left except placeholders. */
|
|
if (g_raid_ndisks(sc, -1) ==
|
|
g_raid_ndisks(sc, G_RAID_DISK_S_OFFLINE))
|
|
g_raid_destroy_node(sc, 0);
|
|
else
|
|
g_raid_md_sii_refill(sc);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
g_raid_md_free_disk_sii(struct g_raid_md_object *md,
|
|
struct g_raid_disk *disk)
|
|
{
|
|
struct g_raid_md_sii_perdisk *pd;
|
|
|
|
pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
|
|
if (pd->pd_meta != NULL) {
|
|
free(pd->pd_meta, M_MD_SII);
|
|
pd->pd_meta = NULL;
|
|
}
|
|
free(pd, M_MD_SII);
|
|
disk->d_md_data = NULL;
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
g_raid_md_free_sii(struct g_raid_md_object *md)
|
|
{
|
|
struct g_raid_md_sii_object *mdi;
|
|
|
|
mdi = (struct g_raid_md_sii_object *)md;
|
|
if (!mdi->mdio_started) {
|
|
mdi->mdio_started = 0;
|
|
callout_stop(&mdi->mdio_start_co);
|
|
G_RAID_DEBUG1(1, md->mdo_softc,
|
|
"root_mount_rel %p", mdi->mdio_rootmount);
|
|
root_mount_rel(mdi->mdio_rootmount);
|
|
mdi->mdio_rootmount = NULL;
|
|
}
|
|
if (mdi->mdio_meta != NULL) {
|
|
free(mdi->mdio_meta, M_MD_SII);
|
|
mdi->mdio_meta = NULL;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
G_RAID_MD_DECLARE(sii, "SiI");
|