99 lines
2.1 KiB
Bash
99 lines
2.1 KiB
Bash
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#!/usr/bin/env bash
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testdir=$(readlink -f "$(dirname "$0")")
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rootdir=$(readlink -f "$testdir/../../")
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source "$testdir/common.sh"
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uring_zram_copy() {
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# Use zram for backend device - this is done in order to make the IO as fast
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# as possible.
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local zram_dev_id
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local magic
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local magic_file0=$SPDK_TEST_STORAGE/magic.dump0
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local magic_file1=$SPDK_TEST_STORAGE/magic.dump1
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local verify_magic
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init_zram
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zram_dev_id=$(create_zram_dev)
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set_zram_dev "$zram_dev_id" 512M
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local ubdev=uring0 ufile=/dev/zram$zram_dev_id
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local -A method_bdev_uring_create_0=(
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["filename"]=$ufile
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["name"]=$ubdev
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)
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# Add extra malloc bdev
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local mbdev=malloc0 mbdev_b=1048576 mbdev_bs=512
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local -A method_bdev_malloc_create_0=(
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["name"]=$mbdev
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["num_blocks"]=$mbdev_b
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["block_size"]=$mbdev_bs
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)
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magic=$(gen_bytes $((mbdev_bs * 2)))
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echo "$magic" > "$magic_file0"
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# Inflate the magic file to fill up entire zram of 512MB.
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"${DD_APP[@]}" \
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--if=/dev/zero \
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--of="$magic_file0" \
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--oflag=append \
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--bs=$((mbdev_b * mbdev_bs - ${#magic} - 1)) \
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--count=1
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# Copy magic file to uring bdev
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"${DD_APP[@]}" \
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--if="$magic_file0" \
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--ob="$ubdev" \
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--json <(gen_conf)
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# Copy the whole uring bdev back to a file
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"${DD_APP[@]}" \
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--ib="$ubdev" \
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--of="$magic_file1" \
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--json <(gen_conf)
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# Verify integrity of each copy
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read -rn${#magic} verify_magic < "$magic_file1"
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[[ $verify_magic == "$magic" ]]
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read -rn${#magic} verify_magic < "/dev/zram$zram_dev_id"
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[[ $verify_magic == "$magic" ]]
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diff -q "$magic_file0" "$magic_file1"
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# Copy cotents of uring bdev to malloc bdev
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"${DD_APP[@]}" \
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--ib="$ubdev" \
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--ob="$mbdev" \
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--json <(gen_conf)
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# HACK: small trick to utilize bdev_uring_delete and keep spdk_dd happy -
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# read/write from 0-length files.
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local -A method_bdev_uring_delete_0=(
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["name"]="$ubdev"
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)
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"${DD_APP[@]}" \
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--if=<(:) \
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--of=<(:) \
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--json <(gen_conf)
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# Now try to copy to uring bdev which is explicitly deleted. We expect it
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# to fail.
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NOT "${DD_APP[@]}" \
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--ib="$ubdev" \
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--of=<(:) \
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--json <(gen_conf)
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remove_zram_dev "$zram_dev_id"
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rm -f "$magic_file0" "$magic_file1"
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}
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run_test "dd_uring_copy" uring_zram_copy
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