66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
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/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright (C) 2022 Intel Corporation.
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* All rights reserved.
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*/
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#include "bdev_raid.h"
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#include "spdk/log.h"
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struct raid1_info {
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/* The parent raid bdev */
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struct raid_bdev *raid_bdev;
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};
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static void
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raid1_submit_rw_request(struct raid_bdev_io *raid_io)
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{
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raid_bdev_io_complete(raid_io, SPDK_BDEV_IO_STATUS_FAILED);
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}
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static int
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raid1_start(struct raid_bdev *raid_bdev)
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{
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uint64_t min_blockcnt = UINT64_MAX;
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struct raid_base_bdev_info *base_info;
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struct raid1_info *r1info;
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r1info = calloc(1, sizeof(*r1info));
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if (!r1info) {
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SPDK_ERRLOG("Failed to allocate RAID1 info device structure\n");
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return -ENOMEM;
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}
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r1info->raid_bdev = raid_bdev;
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RAID_FOR_EACH_BASE_BDEV(raid_bdev, base_info) {
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min_blockcnt = spdk_min(min_blockcnt, base_info->bdev->blockcnt);
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}
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raid_bdev->bdev.blockcnt = min_blockcnt;
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raid_bdev->module_private = r1info;
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return 0;
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}
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static bool
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raid1_stop(struct raid_bdev *raid_bdev)
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{
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struct raid1_info *r1info = raid_bdev->module_private;
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free(r1info);
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return true;
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}
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static struct raid_bdev_module g_raid1_module = {
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.level = RAID1,
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.base_bdevs_min = 2,
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.base_bdevs_constraint = {CONSTRAINT_MIN_BASE_BDEVS_OPERATIONAL, 1},
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.start = raid1_start,
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.stop = raid1_stop,
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.submit_rw_request = raid1_submit_rw_request,
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};
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RAID_MODULE_REGISTER(&g_raid1_module)
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SPDK_LOG_REGISTER_COMPONENT(bdev_raid1)
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