nvme/rc: revert nvme-cli context tracking

This feature is not needed anymore, after fixing nvmet-fc. The nvmet
target code is able to handle parallel operations and doesn't crash
anymore. Furthermore, it can't prevent from discovery controller created
by the udev rules, so let's rip it out.

Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>

tests/nvme/rc

@@ -189,57 +189,6 @@ _nvme_calc_rand_io_size() {
 	echo "${io_size_kb}k"
 }
 
-_have_nvme_cli_context() {
-	# ignore all non-fc transports for now
-	if [[ "${nvme_trtype}" != "fc" ]] ||
-	   ! nvme connect --help 2>&1 | grep -q -- '--context=<STR>' > /dev/null; then
-		return 1
-	fi
-	return 0
-}
-
-_setup_nvme_cli() {
-	local local_wwnn="${1}"
-	local local_wwpn="${2}"
-	local remote_wwnn="${3}"
-	local remote_wwpn="${4}"
-
-	if ! _have_nvme_cli_context; then
-		return
-	fi
-
-	mkdir -p /run/nvme
-	cat >> /run/nvme/blktests.json <<-EOF
-	[
-	  {
-	    "hostnqn": "${def_hostnqn}",
-	    "hostid": "${def_hostid}",
-	    "subsystems": [
-	      {
-	        "application": "blktests",
-	        "nqn": "blktests-subsystem-1",
-	        "ports": [
-	          {
-	            "transport": "fc",
-	            "traddr": "nn-${remote_wwnn}:pn-${remote_wwpn}",
-	            "host_traddr": "nn-${local_wwnn}:pn-${local_wwpn}"
-	          }
-	        ]
-	      }
-	    ]
-	  }
-	]
-	EOF
-}
-
-_cleanup_nvme_cli() {
-	if ! _have_nvme_cli_context; then
-		return
-	fi
-
-	rm -f /run/nvme/blktests.json
-}
-
 _nvme_fcloop_add_rport() {
 	local local_wwnn="$1"
 	local local_wwpn="$2"
@@ -272,9 +221,6 @@ _setup_fcloop() {
 	local remote_wwnn="${3:-$def_remote_wwnn}"
 	local remote_wwpn="${4:-$def_remote_wwpn}"
 
-	_setup_nvme_cli "${local_wwnn}" "${local_wwpn}" \
-			"${remote_wwnn}" "${remote_wwpn}"
-
 	_nvme_fcloop_add_tport "${remote_wwnn}" "${remote_wwpn}"
 	_nvme_fcloop_add_lport "${local_wwnn}" "${local_wwpn}"
 	_nvme_fcloop_add_rport "${local_wwnn}" "${local_wwpn}" \
@@ -317,8 +263,6 @@ _cleanup_fcloop() {
 	_nvme_fcloop_del_lport "${local_wwnn}" "${local_wwpn}"
 	_nvme_fcloop_del_rport "${local_wwnn}" "${local_wwpn}" \
 			       "${remote_wwnn}" "${remote_wwpn}"
-
-	_cleanup_nvme_cli
 }
 
 _cleanup_blkdev() {
@@ -544,9 +488,6 @@ _nvme_connect_subsys() {
 	subsysnqn="$2"
 
 	ARGS=(-t "${trtype}" -n "${subsysnqn}")
-	if _have_nvme_cli_context; then
-		ARGS+=(--context="blktests")
-	fi
 	if [[ "${trtype}" == "fc" ]] ; then
 		ARGS+=(-a "${traddr}" -w "${host_traddr}")
 	elif [[ "${trtype}" != "loop" ]]; then
@@ -618,9 +559,6 @@ _nvme_discover() {
 	ARGS=(-t "${trtype}")
 	ARGS+=(--hostnqn="${def_hostnqn}")
 	ARGS+=(--hostid="${def_hostid}")
-	if _have_nvme_cli_context; then
-		ARGS+=(--context="blktests")
-	fi
 	if [[ "${trtype}" = "fc" ]]; then
 		ARGS+=(-a "${traddr}" -w "${host_traddr}")
 	elif [[ "${trtype}" != "loop" ]]; then