nvmf,test: Add frequent nvmf subsystem add/delete test

This patch creates a new test case: use rpc to
frequently add/delete a same subsystem to verify the
correctness of our code.

Change-Id: Ib582061f9fa909f271bea4865df29a3f432f807c
Signed-off-by: Ziye Yang <ziye.yang@intel.com>

autotest.sh

@@ -119,6 +119,7 @@ run_test test/nvmf/filesystem/filesystem.sh
 run_test test/nvmf/discovery/discovery.sh
 run_test test/nvmf/nvme_cli/nvme_cli.sh
 run_test test/nvmf/shutdown/shutdown.sh
+run_test test/nvmf/rpc/rpc.sh
 
 if [ $RUN_NIGHTLY -eq 1 ]; then
 	run_test test/nvmf/multiconnection/multiconnection.sh

test/nvmf/rpc/rpc.sh

@@ -0,0 +1,56 @@
+#!/usr/bin/env bash
+
+testdir=$(readlink -f $(dirname $0))
+rootdir=$(readlink -f $testdir/../../..)
+source $rootdir/scripts/autotest_common.sh
+source $rootdir/test/nvmf/common.sh
+
+rpc_py="python $rootdir/scripts/rpc.py"
+
+set -e
+
+if ! rdma_nic_available; then
+	echo "no NIC for nvmf test"
+	exit 0
+fi
+
+timing_enter rpc
+
+# Start up the NVMf target in another process
+$rootdir/app/nvmf_tgt/nvmf_tgt -c $testdir/../nvmf.conf &
+pid=$!
+
+trap "killprocess $pid; exit 1" SIGINT SIGTERM EXIT
+
+waitforlisten $pid ${RPC_PORT}
+
+# set times for subsystem construct/delete
+if [ $RUN_NIGHTLY -eq 1 ]; then
+	times=50
+else
+	times=3
+fi
+
+# get all available nvme bdf info.
+bdfs=$(lspci -mm -n | grep 0108 | tr -d '"' | awk -F " " '{print "0000:"$1}')
+
+# do frequent add delete.
+for i in `seq 1 $times`
+do
+	j=0
+	for bdf in $bdfs; do
+		let j=j+1
+		$rpc_py construct_nvmf_subsystem Direct nqn.2016-06.io.spdk:cnode$j 'transport:RDMA traddr:192.168.100.8 trsvcid:4420' '' -p "$bdf"
+	done
+
+	n=$j
+	for j in `seq 1 $n`
+	do
+		$rpc_py delete_nvmf_subsystem nqn.2016-06.io.spdk:cnode$j
+	done
+done
+
+trap - SIGINT SIGTERM EXIT
+
+killprocess $pid
+timing_exit rpc