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SubjectRe: [PATCH blktests v1] nvmeof-mp: Remove nvmeof-mp tests
From
Reviewed-by: John Meneghini <jmeneghi@redhat.com>

Do it.

/John

On 6/6/23 03:54, Daniel Wagner wrote:
> The nvmeof-mp are designed to test a NVMe multipathing setup using
> dm_multipath, which was a configuration RHEL shipped. In the meantime,
> RHEL switched also to NVMe native multipathing which is tested with the
> nvme tests.
>
> The nvme tests cover all the use cases which are testes by nvmeof-mp
> including the transport failure, see nvme/040.
>
> During LSFMM 2023 conference it was decided it is better to drop these
> tests and reduce the maintenance burden on blktests.
>
> Cc: John Meneghini <jmeneghi@redhat.com>
> Signed-off-by: Daniel Wagner <dwagner@suse.de>
> ---
> Documentation/running-tests.md | 4 +-
> common/multipath-over-rdma | 2 +-
> tests/nvmeof-mp/.gitignore | 1 -
> tests/nvmeof-mp/001 | 40 -----
> tests/nvmeof-mp/001.out | 2 -
> tests/nvmeof-mp/002 | 36 ----
> tests/nvmeof-mp/002.out | 2 -
> tests/nvmeof-mp/004 | 40 -----
> tests/nvmeof-mp/004.out | 2 -
> tests/nvmeof-mp/005 | 26 ---
> tests/nvmeof-mp/005.out | 2 -
> tests/nvmeof-mp/006 | 26 ---
> tests/nvmeof-mp/006.out | 2 -
> tests/nvmeof-mp/009 | 26 ---
> tests/nvmeof-mp/009.out | 2 -
> tests/nvmeof-mp/010 | 26 ---
> tests/nvmeof-mp/010.out | 2 -
> tests/nvmeof-mp/011 | 32 ----
> tests/nvmeof-mp/011.out | 2 -
> tests/nvmeof-mp/012 | 42 -----
> tests/nvmeof-mp/012.out | 2 -
> tests/nvmeof-mp/multipath.conf | 27 ---
> tests/nvmeof-mp/rc | 292 ---------------------------------
> 23 files changed, 2 insertions(+), 636 deletions(-)
> delete mode 100644 tests/nvmeof-mp/.gitignore
> delete mode 100755 tests/nvmeof-mp/001
> delete mode 100644 tests/nvmeof-mp/001.out
> delete mode 100755 tests/nvmeof-mp/002
> delete mode 100644 tests/nvmeof-mp/002.out
> delete mode 100755 tests/nvmeof-mp/004
> delete mode 100644 tests/nvmeof-mp/004.out
> delete mode 100755 tests/nvmeof-mp/005
> delete mode 100644 tests/nvmeof-mp/005.out
> delete mode 100755 tests/nvmeof-mp/006
> delete mode 100644 tests/nvmeof-mp/006.out
> delete mode 100755 tests/nvmeof-mp/009
> delete mode 100644 tests/nvmeof-mp/009.out
> delete mode 100755 tests/nvmeof-mp/010
> delete mode 100644 tests/nvmeof-mp/010.out
> delete mode 100755 tests/nvmeof-mp/011
> delete mode 100644 tests/nvmeof-mp/011.out
> delete mode 100755 tests/nvmeof-mp/012
> delete mode 100644 tests/nvmeof-mp/012.out
> delete mode 100644 tests/nvmeof-mp/multipath.conf
> delete mode 100755 tests/nvmeof-mp/rc
>
> diff --git a/Documentation/running-tests.md b/Documentation/running-tests.md
> index b35ae10316e4..62fae60f43fa 100644
> --- a/Documentation/running-tests.md
> +++ b/Documentation/running-tests.md
> @@ -110,18 +110,16 @@ The NVMe tests can be additionally parameterized via environment variables.
> - nvme_num_iter: 1000 (default)
> The number of iterations a test should do.
>
> -### Running nvme-rdma nvmeof-mp srp tests
> +### Running nvme-rdma srp tests
>
> Most of these tests will use the rdma_rxe (soft-RoCE) driver by default. The siw (soft-iWARP) driver is also supported.
> ```sh
> To use the rdma_rxe driver:
> nvme_trtype=rdma ./check nvme/
> -./check nvmeof-mp/
> ./check srp/
>
> To use the siw driver:
> use_siw=1 nvme_trtype=rdma ./check nvme/
> -use_siw=1 ./check nvmeof-mp/
> use_siw=1 ./check srp/
> ```
>
> diff --git a/common/multipath-over-rdma b/common/multipath-over-rdma
> index 9bc1c19258f4..f124897917ca 100644
> --- a/common/multipath-over-rdma
> +++ b/common/multipath-over-rdma
> @@ -2,7 +2,7 @@
> # SPDX-License-Identifier: GPL-2.0+
> # Copyright (c) 2017-2018 Western Digital Corporation or its affiliates.
> #
> -# Functions and global variables used by both the srp and nvmeof-mp tests.
> +# Functions and global variables used by the srp tests.
>
> . common/shellcheck
> . common/null_blk
> diff --git a/tests/nvmeof-mp/.gitignore b/tests/nvmeof-mp/.gitignore
> deleted file mode 100644
> index ecb6268a585b..000000000000
> --- a/tests/nvmeof-mp/.gitignore
> +++ /dev/null
> @@ -1 +0,0 @@
> -multipath.conf
> diff --git a/tests/nvmeof-mp/001 b/tests/nvmeof-mp/001
> deleted file mode 100755
> index 70a4455808cb..000000000000
> --- a/tests/nvmeof-mp/001
> +++ /dev/null
> @@ -1,40 +0,0 @@
> -#!/bin/bash
> -# SPDX-License-Identifier: GPL-2.0+
> -# Copyright (c) 2016-2018 Western Digital Corporation or its affiliates
> -
> -. tests/nvmeof-mp/rc
> -
> -DESCRIPTION="Log in and log out"
> -QUICK=1
> -
> -count_devices() {
> - local d devs=0
> -
> - for d in /sys/class/nvme-fabrics/ctl/*/*/device; do
> - [[ "$d" =~ hwmon[0-9]+|ng[0-9]+n[0-9]+ ]] && continue
> - [ -d "$d" ] && ((devs++))
> - done
> - echo "$devs"
> -}
> -
> -wait_for_devices() {
> - local expected=0 i devices
> -
> - for i in $(rdma_network_interfaces); do
> - ((expected++))
> - done
> -
> - use_blk_mq y || return $?
> - for ((i=0;i<100;i++)); do
> - devices=$(count_devices)
> - [ "$devices" -ge "$expected" ] && break
> - sleep .1
> - done
> - echo "count_devices(): $devices <> $expected" >>"$FULL"
> - [ "$devices" -ge "$expected" ]
> -}
> -
> -test() {
> - trap 'trap "" EXIT; teardown' EXIT
> - setup && wait_for_devices && echo Passed
> -}
> diff --git a/tests/nvmeof-mp/001.out b/tests/nvmeof-mp/001.out
> deleted file mode 100644
> index a7d4cb9bcb29..000000000000
> --- a/tests/nvmeof-mp/001.out
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -Configured NVMe target driver
> -Passed
> diff --git a/tests/nvmeof-mp/002 b/tests/nvmeof-mp/002
> deleted file mode 100755
> index 2aebe9895649..000000000000
> --- a/tests/nvmeof-mp/002
> +++ /dev/null
> @@ -1,36 +0,0 @@
> -#!/bin/bash
> -# SPDX-License-Identifier: GPL-2.0+
> -# Copyright (c) 2016-2018 Western Digital Corporation or its affiliates
> -
> -. tests/nvmeof-mp/rc
> -
> -DESCRIPTION="File I/O on top of multipath concurrently with logout and login (mq)"
> -TIMED=1
> -
> -test_disconnect_repeatedly() {
> - local dev fio_status m
> -
> - use_blk_mq y || return $?
> - dev=$(get_bdev 0) || return $?
> - m=$(mountpoint 0) || return $?
> - create_filesystem "$dev" || return $?
> - mount_and_check "$dev" "$m" || return $?
> - # shellcheck disable=SC2064
> - trap "unmount_and_check $m" RETURN
> - simulate_network_failure_loop "$dev" "$TIMEOUT" &
> - run_fio --verify=md5 --rw=randwrite --bs=4K --loops=$((10**6)) \
> - --iodepth=64 --group_reporting --sync=1 --direct=1 \
> - --ioengine=libaio --directory="$m" --runtime="${TIMEOUT}" \
> - --name=data-integrity-test-mq --thread --numjobs=16 \
> - --output="${RESULTS_DIR}/nvmeof-mp/fio-output-002.txt" \
> - >>"$FULL"
> - fio_status=$?
> - wait
> - return $fio_status
> -}
> -
> -test() {
> - : "${TIMEOUT:=30}"
> - trap 'trap "" EXIT; teardown' EXIT
> - setup && test_disconnect_repeatedly && echo Passed
> -}
> diff --git a/tests/nvmeof-mp/002.out b/tests/nvmeof-mp/002.out
> deleted file mode 100644
> index a7d4cb9bcb29..000000000000
> --- a/tests/nvmeof-mp/002.out
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -Configured NVMe target driver
> -Passed
> diff --git a/tests/nvmeof-mp/004 b/tests/nvmeof-mp/004
> deleted file mode 100755
> index 990fcfc9e472..000000000000
> --- a/tests/nvmeof-mp/004
> +++ /dev/null
> @@ -1,40 +0,0 @@
> -#!/bin/bash
> -# SPDX-License-Identifier: GPL-2.0+
> -# Copyright (c) 2016-2018 Western Digital Corporation or its affiliates
> -
> -. tests/nvmeof-mp/rc
> -
> -DESCRIPTION="File I/O on top of multipath concurrently with logout and login (sq-on-mq)"
> -TIMED=1
> -
> -requires() {
> - _have_legacy_dm
> -}
> -
> -test_disconnect_repeatedly() {
> - local dev fio_status m
> -
> - use_blk_mq n || return $?
> - dev=$(get_bdev 0) || return $?
> - m=$(mountpoint 0) || return $?
> - create_filesystem "$dev" || return $?
> - mount_and_check "$dev" "$m" || return $?
> - # shellcheck disable=SC2064
> - trap "unmount_and_check $m" RETURN
> - simulate_network_failure_loop "$dev" "$TIMEOUT" &
> - run_fio --verify=md5 --rw=randwrite --bs=4K --loops=$((10**6)) \
> - --iodepth=64 --group_reporting --sync=1 --direct=1 \
> - --ioengine=libaio --directory="$m" \
> - --name=data-integrity-test-02-sq-on-mq --thread \
> - --numjobs=16 --runtime="${TIMEOUT}" \
> - --output="${RESULTS_DIR}/nvmeof-mp/fio-output-004.txt" >>"$FULL"
> - fio_status=$?
> - wait
> - return $fio_status
> -}
> -
> -test() {
> - : "${TIMEOUT:=30}"
> - trap 'trap "" EXIT; teardown' EXIT
> - setup && test_disconnect_repeatedly && echo Passed
> -}
> diff --git a/tests/nvmeof-mp/004.out b/tests/nvmeof-mp/004.out
> deleted file mode 100644
> index a7d4cb9bcb29..000000000000
> --- a/tests/nvmeof-mp/004.out
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -Configured NVMe target driver
> -Passed
> diff --git a/tests/nvmeof-mp/005 b/tests/nvmeof-mp/005
> deleted file mode 100755
> index fb623acc0d99..000000000000
> --- a/tests/nvmeof-mp/005
> +++ /dev/null
> @@ -1,26 +0,0 @@
> -#!/bin/bash
> -# SPDX-License-Identifier: GPL-2.0+
> -# Copyright (c) 2016-2018 Western Digital Corporation or its affiliates
> -
> -. tests/nvmeof-mp/rc
> -
> -DESCRIPTION="Direct I/O with large transfer sizes and bs=4M"
> -QUICK=1
> -
> -test_large_transfer_size() {
> - local dev m
> -
> - use_blk_mq y || return $?
> - dev=$(get_bdev 0) || return $?
> - run_fio --verify=md5 --rw=randwrite --bs=4M --loops=$((10**6)) \
> - --iodepth=4 --group_reporting --sync=1 --direct=1 \
> - --ioengine=libaio \
> - --filename="$dev" --name=large-io-test --thread --numjobs=1 \
> - --runtime=10 --output="${RESULTS_DIR}/nvmeof-mp/fio-output-005.txt" \
> - >>"$FULL"
> -}
> -
> -test() {
> - trap 'trap "" EXIT; teardown' EXIT
> - setup && test_large_transfer_size && echo Passed
> -}
> diff --git a/tests/nvmeof-mp/005.out b/tests/nvmeof-mp/005.out
> deleted file mode 100644
> index a7d4cb9bcb29..000000000000
> --- a/tests/nvmeof-mp/005.out
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -Configured NVMe target driver
> -Passed
> diff --git a/tests/nvmeof-mp/006 b/tests/nvmeof-mp/006
> deleted file mode 100755
> index 2034ed1729c6..000000000000
> --- a/tests/nvmeof-mp/006
> +++ /dev/null
> @@ -1,26 +0,0 @@
> -#!/bin/bash
> -# SPDX-License-Identifier: GPL-2.0+
> -# Copyright (c) 2016-2018 Western Digital Corporation or its affiliates
> -
> -. tests/nvmeof-mp/rc
> -
> -DESCRIPTION="Direct I/O with large transfer sizes and bs=8M"
> -QUICK=1
> -
> -test_large_transfer_size() {
> - local dev m
> -
> - use_blk_mq y || return $?
> - dev=$(get_bdev 0) || return $?
> - run_fio --verify=md5 --rw=randwrite --bs=8M --loops=$((10**6)) \
> - --iodepth=4 --group_reporting --sync=1 --direct=1 \
> - --ioengine=libaio \
> - --filename="$dev" --name=large-io-test --thread --numjobs=1 \
> - --runtime=10 --output="${RESULTS_DIR}/nvmeof-mp/fio-output-006.txt" \
> - >>"$FULL"
> -}
> -
> -test() {
> - trap 'trap "" EXIT; teardown' EXIT
> - setup && test_large_transfer_size && echo Passed
> -}
> diff --git a/tests/nvmeof-mp/006.out b/tests/nvmeof-mp/006.out
> deleted file mode 100644
> index a7d4cb9bcb29..000000000000
> --- a/tests/nvmeof-mp/006.out
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -Configured NVMe target driver
> -Passed
> diff --git a/tests/nvmeof-mp/009 b/tests/nvmeof-mp/009
> deleted file mode 100755
> index 35c706fd8534..000000000000
> --- a/tests/nvmeof-mp/009
> +++ /dev/null
> @@ -1,26 +0,0 @@
> -#!/bin/bash
> -# SPDX-License-Identifier: GPL-2.0+
> -# Copyright (c) 2016-2018 Western Digital Corporation or its affiliates
> -
> -. tests/nvmeof-mp/rc
> -
> -DESCRIPTION="Buffered I/O with large transfer sizes and bs=4M"
> -QUICK=1
> -
> -test_large_transfer_size() {
> - local dev m
> -
> - use_blk_mq y || return $?
> - dev=$(get_bdev 0) || return $?
> - run_fio --verify=md5 --rw=randwrite --bs=4M --loops=$((10**6)) \
> - --iodepth=4 --group_reporting --sync=1 --direct=0 \
> - --ioengine=libaio \
> - --filename="$dev" --name=large-io-test --thread --numjobs=1 \
> - --runtime=10 --output="${RESULTS_DIR}/nvmeof-mp/fio-output-009.txt" \
> - >>"$FULL"
> -}
> -
> -test() {
> - trap 'trap "" EXIT; teardown' EXIT
> - setup && test_large_transfer_size && echo Passed
> -}
> diff --git a/tests/nvmeof-mp/009.out b/tests/nvmeof-mp/009.out
> deleted file mode 100644
> index a7d4cb9bcb29..000000000000
> --- a/tests/nvmeof-mp/009.out
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -Configured NVMe target driver
> -Passed
> diff --git a/tests/nvmeof-mp/010 b/tests/nvmeof-mp/010
> deleted file mode 100755
> index 9f6c245bb13e..000000000000
> --- a/tests/nvmeof-mp/010
> +++ /dev/null
> @@ -1,26 +0,0 @@
> -#!/bin/bash
> -# SPDX-License-Identifier: GPL-2.0+
> -# Copyright (c) 2016-2018 Western Digital Corporation or its affiliates
> -
> -. tests/nvmeof-mp/rc
> -
> -DESCRIPTION="Buffered I/O with large transfer sizes and bs=8M"
> -QUICK=1
> -
> -test_large_transfer_size() {
> - local dev m
> -
> - use_blk_mq y || return $?
> - dev=$(get_bdev 0) || return $?
> - run_fio --verify=md5 --rw=randwrite --bs=8M --loops=$((10**6)) \
> - --iodepth=4 --group_reporting --sync=1 --direct=0 \
> - --ioengine=libaio \
> - --filename="$dev" --name=large-io-test --thread --numjobs=1 \
> - --runtime=10 --output="${RESULTS_DIR}/nvmeof-mp/fio-output-010.txt" \
> - >>"$FULL"
> -}
> -
> -test() {
> - trap 'trap "" EXIT; teardown' EXIT
> - setup && test_large_transfer_size && echo Passed
> -}
> diff --git a/tests/nvmeof-mp/010.out b/tests/nvmeof-mp/010.out
> deleted file mode 100644
> index a7d4cb9bcb29..000000000000
> --- a/tests/nvmeof-mp/010.out
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -Configured NVMe target driver
> -Passed
> diff --git a/tests/nvmeof-mp/011 b/tests/nvmeof-mp/011
> deleted file mode 100755
> index d0a4f8c0db30..000000000000
> --- a/tests/nvmeof-mp/011
> +++ /dev/null
> @@ -1,32 +0,0 @@
> -#!/bin/bash
> -# SPDX-License-Identifier: GPL-2.0+
> -# Copyright (c) 2016-2018 Western Digital Corporation or its affiliates
> -
> -. tests/nvmeof-mp/rc
> -
> -DESCRIPTION="Block I/O on top of multipath concurrently with logout and login"
> -TIMED=1
> -
> -test_disconnect_repeatedly() {
> - local dev fio_status m
> -
> - use_blk_mq y || return $?
> - dev=$(get_bdev 0) || return $?
> - simulate_network_failure_loop "$dev" "$TIMEOUT" &
> - run_fio --verify=md5 --rw=randwrite --bs=4K --loops=10000 \
> - --ioengine=libaio --iodepth=64 --iodepth_batch=32 \
> - --group_reporting --sync=1 --direct=1 --filename="$dev" \
> - --name=data-integrity-test-06 --thread --numjobs=1 \
> - --runtime="${TIMEOUT}" \
> - --output="${RESULTS_DIR}/nvmeof-mp/fio-output-011.txt" \
> - >>"$FULL"
> - fio_status=$?
> - wait
> - return $fio_status
> -}
> -
> -test() {
> - : "${TIMEOUT:=30}"
> - trap 'trap "" EXIT; teardown' EXIT
> - setup && test_disconnect_repeatedly && echo Passed
> -}
> diff --git a/tests/nvmeof-mp/011.out b/tests/nvmeof-mp/011.out
> deleted file mode 100644
> index a7d4cb9bcb29..000000000000
> --- a/tests/nvmeof-mp/011.out
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -Configured NVMe target driver
> -Passed
> diff --git a/tests/nvmeof-mp/012 b/tests/nvmeof-mp/012
> deleted file mode 100755
> index b2d7a6351bf7..000000000000
> --- a/tests/nvmeof-mp/012
> +++ /dev/null
> @@ -1,42 +0,0 @@
> -#!/bin/bash
> -# SPDX-License-Identifier: GPL-2.0+
> -# Copyright (c) 2018 Western Digital Corporation or its affiliates
> -
> -. tests/nvmeof-mp/rc
> -
> -DESCRIPTION="dm-mpath on top of multiple I/O schedulers"
> -QUICK=1
> -
> -test_io_schedulers() {
> - local dev m dm scheds
> -
> - # Load all I/O scheduler kernel modules
> - for m in "/lib/modules/$(uname -r)/kernel/block/"*.ko; do
> - modprobe "$(basename "$m")" >&/dev/null
> - done
> - for mq in y n; do
> - use_blk_mq ${mq} || return $?
> - dev=$(get_bdev 0) || return $?
> - dm=$(basename "$(readlink -f "${dev}")") || return $?
> - scheds="$(_io_schedulers "$dm")" || return $?
> - for sched in $scheds; do
> - set_scheduler "$dm" "$sched" \
> - >>"$FULL" 2>&1 || continue
> - echo "I/O scheduler: $sched; use_blk_mq: $mq" >>"$FULL"
> - run_fio --verify=md5 --rw=randwrite --bs=4K --size=64K \
> - --ioengine=libaio --iodepth=64 \
> - --iodepth_batch=32 --group_reporting --sync=1 \
> - --direct=1 --filename="$dev" \
> - --name="${sched}" --thread --numjobs=1 \
> - --output="${RESULTS_DIR}/nvmeof-mp/012-${sched}-${mq}.txt" \
> - >>"$FULL" ||
> - return $?
> - done
> - done
> - return 0
> -}
> -
> -test() {
> - trap 'trap "" EXIT; teardown' EXIT
> - setup && test_io_schedulers && echo Passed
> -}
> diff --git a/tests/nvmeof-mp/012.out b/tests/nvmeof-mp/012.out
> deleted file mode 100644
> index a7d4cb9bcb29..000000000000
> --- a/tests/nvmeof-mp/012.out
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -Configured NVMe target driver
> -Passed
> diff --git a/tests/nvmeof-mp/multipath.conf b/tests/nvmeof-mp/multipath.conf
> deleted file mode 100644
> index 8aed22e11f3e..000000000000
> --- a/tests/nvmeof-mp/multipath.conf
> +++ /dev/null
> @@ -1,27 +0,0 @@
> -defaults {
> - find_multipaths no
> - user_friendly_names yes
> - queue_without_daemon no
> -}
> -devices {
> - device {
> - vendor "NVME"
> - product "Linux"
> - no_path_retry "queue"
> - path_checker "directio"
> - }
> -}
> -blacklist {
> - device {
> - vendor "ATA|QEMU"
> - }
> - device {
> - vendor "Linux"
> - product "scsi_debug"
> - }
> - devnode "^nullb.*"
> -}
> -blacklist_exceptions {
> - property ".*"
> - devnode "^nvme"
> -}
> diff --git a/tests/nvmeof-mp/rc b/tests/nvmeof-mp/rc
> deleted file mode 100755
> index 4f4d518c6483..000000000000
> --- a/tests/nvmeof-mp/rc
> +++ /dev/null
> @@ -1,292 +0,0 @@
> -#!/bin/bash
> -# SPDX-License-Identifier: GPL-2.0+
> -# Copyright (c) 2018 Western Digital Corporation or its affiliates
> -
> -. common/rc
> -. common/multipath-over-rdma
> -
> -namespace=(1)
> -elevator=none
> -nvme_subsysnqn="nvme-test"
> -nvme_port=7777
> -ini_timeout=1
> -
> -group_requires() {
> - local m name p
> -
> - _have_kernel_config_file || return
> - # Since the nvmeof-mp tests are based on the dm-mpath driver, these
> - # tests are incompatible with the NVME_MULTIPATH kernel configuration
> - # option with multipathing enabled in the nvme_core kernel module.
> - if _check_kernel_option NVME_MULTIPATH && \
> - _have_module_param_value nvme_core multipath Y; then
> - SKIP_REASONS+=("CONFIG_NVME_MULTIPATH has been set in .config and multipathing has been enabled in the nvme_core kernel module")
> - return
> - fi
> -
> - _have_configfs || return
> -
> - _have_module dm_multipath
> - _have_module dm_queue_length
> - _have_module dm_service_time
> - _have_module null_blk
> - _have_module rdma_cm
> - _have_module ib_ipoib
> - _have_module ib_umad
> - _have_module nvme-rdma
> - _have_module nvmet-rdma
> - _have_module rdma_rxe
> - _have_module scsi_dh_alua
> - _have_module scsi_dh_emc
> - _have_module scsi_dh_rdac
> -
> - for p in mkfs.ext4 mkfs.xfs multipath multipathd pidof rdma fio; do
> - _have_program "$p" || return
> - done
> -
> - _multipathd_version_ge 0.7.0 || return
> -
> - _have_root || return
> -
> - _have_kernel_option DM_UEVENT || return
> -
> - # shellcheck disable=SC2043
> - for name in multipathd; do
> - if pidof "$name" >/dev/null; then
> - SKIP_REASONS+=("$name must be stopped before the nvmeof-mp tests are run")
> - return
> - fi
> - done
> - if [ -e /etc/multipath.conf ] &&
> - ! diff -q /etc/multipath.conf tests/nvmeof-mp/multipath.conf >&/dev/null
> - then
> - SKIP_REASONS+=("/etc/multipath.conf already exists")
> - return
> - fi
> -}
> -
> -# Log out, set dm use_blk_mq parameter to $1 and log in.
> -use_blk_mq() {
> - local dm_mode=$1
> -
> - (
> - cd /sys/module/dm_mod/parameters || return $?
> - if [ -e use_blk_mq ]; then
> - echo "$dm_mode" >use_blk_mq || return 1
> - fi
> - )
> -
> - log_out &&
> - remove_mpath_devs &&
> - start_client &&
> - log_in &&
> - return 0
> -
> - echo "use_blk_mq $* failed" >>"$FULL"
> - return 1
> -}
> -
> -log_in() {
> - local i ipv4_addr loginparams
> -
> - [ -c /dev/nvme-fabrics ] &&
> - for i in $(rdma_network_interfaces); do
> - ipv4_addr=$(get_ipv4_addr "$i")
> - if [ -n "${ipv4_addr}" ]; then
> - loginparams="transport=rdma,traddr=${ipv4_addr},trsvcid=${nvme_port},nqn=$nvme_subsysnqn"
> - echo "Login parameters: $loginparams" >>"$FULL"
> - {
> - echo -n "$loginparams" > /dev/nvme-fabrics
> - } 2>>"$FULL"
> - fi
> - done
> -}
> -
> -log_out() {
> - local c
> -
> - for c in /sys/class/nvme-fabrics/ctl/*/delete_controller; do
> - [ -e "$c" ] && echo 1 > "$c" &
> - done
> - wait
> -}
> -
> -# Simulate network failures for device $1 during $2 seconds.
> -simulate_network_failure_loop() {
> - local d dev="$1" duration="$2" deadline i rc=0 sf
> -
> - [ -e "$dev" ] || return 1
> - [ -n "$duration" ] || return 1
> - deadline=$(($(_uptime_s) + duration))
> - while [ $rc = 0 ]; do
> - sleep_until 5 ${deadline} || break
> - for d in $(held_by "$dev"); do
> - for sf in /sys/class/nvme/*/device/*/"${d#/dev/}/reset_controller"; do
> - [ -e "$sf" ] && echo 1 > "$sf"
> - done
> - done
> - done 2>>"$FULL"
> -
> - for ((i=0;i<5;i++)); do
> - log_in 2>/dev/null && break
> - sleep 1
> - done
> -}
> -
> -remove_mpath_devs() {
> - local dm h
> -
> - {
> - for h in /sys/class/block/nvme*/holders/*; do
> - [ -e "$h" ] || continue
> - d=$(basename "$(dirname "$(dirname "$h")")")
> - dm=/dev/$(basename "$h")
> - echo -n "NVME dev $d: removing $dm: "
> - dmsetup remove "$(dev_to_mpath "$dm")" && echo "done"
> - done
> -
> - remove_stale_mpath_devs
> - } &>> "$FULL"
> -}
> -
> -start_nvme_client() {
> - modprobe nvme-core dyndbg=+pmf &&
> - modprobe nvme dyndbg=+pmf &&
> - modprobe nvme-fabrics dyndbg=+pmf &&
> - modprobe nvme-rdma dyndbg=+pmf &&
> - mkdir -p "$(mountpoint 0)"
> - udevadm settle
> - if [ ! -c /dev/nvme-fabrics ]; then
> - echo "Error: /dev/nvme-fabrics not available"
> - fi
> -}
> -
> -stop_nvme_client() {
> - _unload_module nvme-rdma || return $?
> - _unload_module nvme-fabrics || return $?
> - # Ignore nvme and nvme-core unload errors - this test may be run on a
> - # system equipped with one or more NVMe SSDs.
> - _unload_module nvme >&/dev/null
> - _unload_module nvme-core >&/dev/null
> - return 0
> -}
> -
> -# Load the initiator kernel driver with kernel module parameters $1..$n.
> -start_client() {
> - start_nvme_client
> -}
> -
> -stop_client() {
> - stop_nvme_client
> -}
> -
> -# Get the name of the initiator device node that communicates with target
> -# device $1. $1 is an index in the $namespace array.
> -get_bdev_path() {
> - local i=$1 uuid
> -
> - is_number "$i" || return $?
> - uuid=$(<"/sys/kernel/config/nvmet/subsystems/${nvme_subsysnqn}/namespaces/${namespace[$1]}/device_uuid") || return $?
> - echo "/dev/disk/by-id/dm-uuid-mpath-uuid.$uuid"
> -}
> -
> -# Get a /dev/... path that points at dm device number $1. $1 is an index in
> -# the $namespace array.
> -get_bdev() {
> - get_bdev_n "$1" "$elevator" "$ini_timeout"
> -}
> -
> -configure_nvmet_port() {
> - local p=$1 ipv4_addr=$2 i
> -
> - echo "Configuring $p with address $ipv4_addr as an NVMeOF target port" \
> - >>"$FULL"
> - (
> - cd /sys/kernel/config/nvmet/ports &&
> - for ((i=1;1;i++)); do [ -e "$i" ] || break; done &&
> - mkdir "$i" &&
> - cd "$i" &&
> - echo ipv4 > addr_adrfam &&
> - echo rdma > addr_trtype &&
> - echo -n "$ipv4_addr" > addr_traddr &&
> - echo -n ${nvme_port} > addr_trsvcid
> - )
> -}
> -
> -start_nvme_target() {
> - local d i ipv4_addr num_ports=0
> -
> - echo "Configuring NVMe target driver ..." >>"$FULL"
> - modprobe nvmet dyndbg=+pmf &&
> - modprobe nvmet-rdma dyndbg=+pmf &&
> - sleep .1 &&
> - (
> - cd /sys/kernel/config/nvmet/subsystems &&
> - mkdir ${nvme_subsysnqn} &&
> - cd ${nvme_subsysnqn} &&
> - cd namespaces &&
> - mkdir "${namespace[0]}" &&
> - cd "${namespace[0]}" &&
> - echo 00000000-0000-0000-0000-000000000000 >device_nguid &&
> - echo -n /dev/nullb0 >device_path &&
> - echo 1 >enable &&
> - cd ../.. &&
> - echo 1 >attr_allow_any_host
> - ) && for i in $(rdma_network_interfaces); do
> - ipv4_addr=$(get_ipv4_addr "$i")
> - if [ -n "${ipv4_addr}" ]; then
> - configure_nvmet_port "$i" "${ipv4_addr}"
> - ((num_ports++))
> - true
> - fi
> - done &&
> - if [[ $num_ports = 0 ]]; then
> - echo "No NVMeOF target ports"
> - false
> - fi && (
> - cd /sys/kernel/config/nvmet/ports &&
> - for i in *; do
> - [ -e "$i" ] && (
> - cd "$i/subsystems" &&
> - ln -s "../../../subsystems/${nvme_subsysnqn}" .
> - )
> - done
> - )
> - echo "Configured NVMe target driver"
> -}
> -
> -stop_nvme_target() {
> - local d
> -
> - (
> - cd /sys/kernel/config/nvmet 2>/dev/null &&
> - rm -f -- ports/*/subsystems/* &&
> - for d in {*/*/*/*,*/*}; do
> - [ -e "$d" ] &&
> - [[ ! "$(basename "$(dirname "$d")")" =~ ana_groups|passthru ]] &&
> - rmdir "$d"
> - done
> - )
> - _unload_module nvmet_rdma &&
> - _unload_module nvmet &&
> - _exit_null_blk
> -}
> -
> -start_target() {
> - start_nvme_target
> -}
> -
> -stop_target() {
> - stop_nvme_target
> -}
> -
> -shutdown_client() {
> - remove_mpath_devs &&
> - log_out &&
> - stop_client
> -}
> -
> -# Set up test configuration
> -setup() {
> - setup_test "$PWD/tests/nvmeof-mp/multipath.conf"
> -}

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