autotest: update iscsi filesystem test (porting from nightly to autotest)

Add iscsi filesystem test cases(run fio) with
lvol and nvme backend in nightly.

Change-Id: I822e5c570fb9ef96ce63bf1c853c537b35c8b1d7
Signed-off-by: xuhuagen <huagenx.xu@intel.com>
Reviewed-on: https://review.gerrithub.io/405513
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>

test/iscsi_tgt/filesystem/filesystem.sh

@@ -8,7 +8,6 @@ source $rootdir/scripts/common.sh
 
 timing_enter filesystem
 
-
 rpc_py="python $rootdir/scripts/rpc.py"
 # Remove lvol bdevs and stores.
 function remove_backends()
@@ -77,6 +76,29 @@ for fstype in "ext4" "btrfs" "xfs"; do
 		mkfs.${fstype} -f /dev/${dev}1
 	fi
 	mount /dev/${dev}1 /mnt/device
+	if [ $RUN_NIGHTLY -eq 1 ]; then
+		fio -filename=/mnt/device/test -direct=1 -iodepth 64 -thread=1 -invalidate=1 -rw=randwrite -ioengine=libaio -bs=4k \
+		 -size=1024M -name=job0
+		umount /mnt/device
+
+		iscsiadm -m node --logout
+		sleep 1
+		iscsiadm -m node --login -p $TARGET_IP:$ISCSI_PORT
+		sleep 1
+		dev=$(iscsiadm -m session -P 3 | grep "Attached scsi disk" | awk '{print $4}')
+		mount -o rw /dev/${dev}1 /mnt/device
+		if [ -f "/mnt/device/test" ]; then
+			echo "File existed."
+			fio -filename=/mnt/device/test -direct=1 -iodepth 64 -thread=1 -invalidate=1 -rw=randread \
+			-ioengine=libaio -bs=4k -runtime=20 -time_based=1 -name=job0
+		else
+			echo "File doesn't exist."
+			exit 1
+		fi
+
+		rm -rf /mnt/device/test
+		umount /mnt/device
+	else
 		touch /mnt/device/aaa
 		umount /mnt/device
 
@@ -96,6 +118,7 @@ for fstype in "ext4" "btrfs" "xfs"; do
 
 		rm -rf /mnt/device/aaa
 		umount /mnt/device
+	fi
 done
 
 rm -rf /mnt/device