On 9/30/20 12:01, Logan Gunthorpe wrote:
> Add some simple helpers to setup a passthru target that passes through
> to a nvme test device.
>
> Signed-off-by: Logan Gunthorpe <[email protected]>
> ---
> tests/nvme/rc | 76 +++++++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 76 insertions(+)
>
> diff --git a/tests/nvme/rc b/tests/nvme/rc
> index dfa57a299625..1ea23308a3f7 100644
> --- a/tests/nvme/rc
> +++ b/tests/nvme/rc
> @@ -73,6 +73,17 @@ _require_nvme_trtype_is_fabrics() {
> return 0
> }
>
> +_test_dev_nvme_ctrl() {
> + local dev
> +
> + dev=$(cat "${TEST_DEV_SYSFS}/device/dev")
can you initialize dev this at the time of declaration ?
> + echo "/dev/char/${dev}"
> +}
> +
> +_test_dev_nvme_nsid() {
> + cat "${TEST_DEV_SYSFS}/nsid"
> +}
> +
> _cleanup_nvmet() {
> local dev
> local port
> @@ -257,6 +268,27 @@ _remove_nvmet_subsystem() {
> rmdir "${subsys_path}"
> }
>
> +_create_nvmet_passthru() {
> + local nvmet_subsystem="$1"
> + local subsys_path="${NVMET_CFS}/subsystems/${nvmet_subsystem}"
> + local passthru_path="${subsys_path}/passthru"
> +
> + mkdir -p "${subsys_path}"
> + printf 1 > "${subsys_path}/attr_allow_any_host"
> +
> + printf "%s" "$(_test_dev_nvme_ctrl)" > "${passthru_path}/device_path"
> + printf 1 > "${passthru_path}/enable"
can you please echo in general and printf only when it is needed ?
I know existing code is a bit inconsistent I'll send a clenup to make it
uniform.
> +}
> +
> +_remove_nvmet_passhtru() {
> + local nvmet_subsystem="$1"
> + local subsys_path="${NVMET_CFS}/subsystems/${nvmet_subsystem}"
> + local passthru_path="${subsys_path}/passthru"
> +
> + printf 0 > "${passthru_path}/enable"
> + rmdir "${subsys_path}"
> +}
> +
> _add_nvmet_subsys_to_port() {
> local port="$1"
> local nvmet_subsystem="$2"
> @@ -292,6 +324,50 @@ _find_nvme_dev() {
> done
> }
>
> +_find_nvme_passthru_loop_dev() {
> + local subsys=$1
> + local nsid
> + local dev
> +
> + dev=$(_find_nvme_dev "${subsys}")
> + nsid=$(_test_dev_nvme_nsid)
> + echo "/dev/${dev}n${nsid}"
> +}
> +
> +_nvmet_passthru_target_setup() {
> + local subsys_name=$1
> +
> + _create_nvmet_passthru "${subsys_name}"
> + port="$(_create_nvmet_port "loop")"
> + _add_nvmet_subsys_to_port "${port}" "${subsys_name}"
> +
> + echo "$port"
> +}
> +
> +_nvmet_passthru_target_connect() {
> + local trtype=$1
> + local subsys_name=$2
> +
> + _nvme_connect_subsys "${trtype}" "${subsys_name}"
> + nsdev=$(_find_nvme_passthru_loop_dev "${subsys_name}")
> +
> + # The following tests can race with the creation
> + # of the device so ensure the block device exists
> + # before continuing
> + while [ ! -b "${nsdev}" ]; do sleep 1; done
> +
> + echo "${nsdev}"
> +}
> +
> +_nvmet_passthru_target_cleanup() {
> + local port=$1
> + local subsys_name=$2
> +
> + _remove_nvmet_subsystem_from_port "${port}" "${subsys_name}"
> + _remove_nvmet_port "${port}"
> + _remove_nvmet_passhtru "${subsys_name}"
> +}
> +
> _filter_discovery() {
> sed -n -r -e "s/Generation counter [0-9]+/Generation counter X/" \
> -e '/Discovery Log Number|Log Entry|trtype|subnqn/p'
