test/dd: Add simple test for copying data between two bdevs

Change-Id: I43cb41a033aa5be669f73f7bcd8d8b645e078abc
Signed-off-by: Michal Berger <michalx.berger@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/3125
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>

test/dd/bdev_to_bdev.sh

@@ -0,0 +1,111 @@
+#!/usr/bin/env bash
+testdir=$(readlink -f "$(dirname "$0")")
+rootdir=$(readlink -f "$testdir/../../")
+source "$testdir/common.sh"
+
+nvmes=("$@")
+
+offset_magic() {
+	local magic_check
+	local offsets offset
+
+	offsets=(16 256 4096) # * bs
+
+	for offset in "${offsets[@]}"; do
+		"${DD_APP[@]}" \
+			--ib="$bdev0" \
+			--ob="$bdev1" \
+			--count="$count" \
+			--seek="$offset" \
+			--bs="$bs" \
+			--json <(gen_conf)
+
+		"${DD_APP[@]}" \
+			--ib="$bdev1" \
+			--of="$test_file1" \
+			--count=1 \
+			--skip="$offset" \
+			--bs="$bs" \
+			--json <(gen_conf)
+
+		read -rn${#magic} magic_check < "$test_file1"
+		[[ $magic_check == "$magic" ]]
+	done
+}
+
+cleanup() {
+	# Zero up to 1G on input bdev, 4G on out bdev to consider offsetting
+	clear_nvme "$bdev0" "" $((0x40000000 + ${#magic}))
+	clear_nvme "$bdev1" "" $((0x100000000 + ${#magic}))
+	rm -f "$test_file0" "$test_file1" "$aio1"
+}
+
+trap "cleanup" EXIT
+
+bs=$((1024 << 10))
+
+if ((${#nvmes[@]} > 1)); then
+	nvme0=Nvme0 bdev0=Nvme0n1 nvme0_pci=${nvmes[0]} # input bdev
+	nvme1=Nvme1 bdev1=Nvme1n1 nvme1_pci=${nvmes[1]} # output bdev
+
+	declare -A method_bdev_nvme_attach_controller_0=(
+		["name"]=$nvme0
+		["traddr"]=$nvme0_pci
+		["trtype"]=pcie
+	)
+	declare -A method_bdev_nvme_attach_controller_1=(
+		["name"]=$nvme1
+		["traddr"]=$nvme1_pci
+		["trtype"]=pcie
+	)
+else
+	# Use AIO to compensate lack of actual hardware
+	nvme0=Nvme0 bdev0=Nvme0n1 nvme0_pci=${nvmes[0]} # input bdev
+	aio1=$SPDK_TEST_STORAGE/aio1 bdev1=aio1         # output bdev
+
+	declare -A method_bdev_nvme_attach_controller_1=(
+		["name"]=$nvme0
+		["traddr"]=$nvme0_pci
+		["trtype"]=pcie
+	)
+	declare -A method_bdev_aio_create_0=(
+		["name"]=$bdev1
+		["filename"]=$aio1
+		["block_size"]=4096
+	)
+
+	# 8G AIO file
+	"${DD_APP[@]}" \
+		--if=/dev/zero \
+		--of="$aio1" \
+		--bs="$bs" \
+		--count=8192
+fi
+
+test_file0=$SPDK_TEST_STORAGE/dd.dump0
+test_file1=$SPDK_TEST_STORAGE/dd.dump1
+
+magic="This Is Our Magic, find it"
+echo "$magic" > "$test_file0"
+
+# Make the file a bit bigger (~1GB)
+run_test "dd_inflate_file" \
+	"${DD_APP[@]}" \
+	--if=/dev/zero \
+	--of="$test_file0" \
+	--oflag=append \
+	--bs="$bs" \
+	--count=1024
+
+test_file0_size=$(wc -c < "$test_file0")
+
+# Now, copy it over to first nvme with default bs (4k)
+run_test "dd_copy_to_out_bdev" \
+	"${DD_APP[@]}" \
+	--if="$test_file0" \
+	--ob="$bdev0" \
+	--json <(gen_conf)
+
+count=$(((test_file0_size / bs) + 1))
+
+run_test "dd_offset_magic" offset_magic

test/dd/dd.sh

@@ -8,3 +8,4 @@ nvmes=($(nvme_in_userspace))
 
 run_test "spdk_dd_basic_rw" "$testdir/basic_rw.sh" "${nvmes[@]}"
 run_test "spdk_dd_posix" "$testdir/posix.sh"
+run_test "spdk_dd_bdev_to_bdev" "$testdir/bdev_to_bdev.sh" "${nvmes[@]}"