test/sma: add test for multiple bus support for NVMe/vfio_user plugin

Add test to cover issue where device couldn't be found on
non-first attached bus.

Signed-off-by: Artsiom Koltun <artsiom.koltun@intel.com>
Change-Id: Ie876596c56a08a6f9b5c8b2283dfd6399fd8fffd
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/14652
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: <sebastian.brzezinka@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>

test/sma/vfiouser_qemu.sh

@@ -113,7 +113,9 @@ mkdir -p "${VFO_ROOT_PATH}"
 used_vms=$vm_no
 vm_kill_all
 
-vm_setup --os="$VM_IMAGE" --disk-type=virtio --force=$vm_no --qemu-args="-qmp tcp:localhost:10005,server,nowait -device pci-bridge,chassis_nr=1,id=pci.spdk.0"
+vm_setup --os="$VM_IMAGE" --disk-type=virtio --force=$vm_no --qemu-args="-qmp tcp:localhost:10005,server,nowait \
+-device pci-bridge,chassis_nr=1,id=pci.spdk.0 \
+-device pci-bridge,chassis_nr=2,id=pci.spdk.1"
 
 # Run pre-configured VM and wait for them to start
 vm_run $vm_no
@@ -137,6 +139,8 @@ $rootdir/scripts/sma.py -c <(
 		      buses:
 		        - name: 'pci.spdk.0'
 		          count: 32
+		        - name: 'pci.spdk.1'
+		          count: 32
 		      qmp_addr: 127.0.0.1
 		      qmp_port: 10005
 		crypto:
@@ -262,6 +266,14 @@ detach_volume "$device1" "$uuid0"
 delete_device "$device0"
 delete_device "$device1"
 
+# Create device with allocation on second bus
+device3=$(create_device 42 0 | jq -r '.handle')
+vm_check_subsys_nqn $vm_no nqn.2016-06.io.spdk:vfiouser-42
+
+# Verify that device can be found on second bus and properly deleted
+delete_device "$device3"
+NOT vm_check_subsys_nqn $vm_no nqn.2016-06.io.spdk:vfiouser-42
+
 key0=1234567890abcdef1234567890abcdef
 device0=$(create_device 0 0 | jq -r '.handle')
 uuid0=$(rpc_cmd bdev_get_bdevs -b null0 | jq -r '.[].uuid')