nvmf: Include the JSON RPC server

This allows live configuration of the target, much like
the iSCSI target. More function calls will be added
over time.

Also, make the tests wait until the target is listening
on the RPC port to determine that the target is ready.

Change-Id: I8f762e49511d482ef820f6b25a7d3ad9a8bb41f9
Signed-off-by: Ben Walker <benjamin.walker@intel.com>

app/nvmf_tgt/Makefile

@@ -59,6 +59,8 @@ SPDK_LIBS = \
 	$(SPDK_ROOT_DIR)/lib/rpc/libspdk_rpc.a \
 	$(SPDK_ROOT_DIR)/lib/jsonrpc/libspdk_jsonrpc.a \
 	$(SPDK_ROOT_DIR)/lib/json/libspdk_json.a \
+	$(SPDK_ROOT_DIR)/lib/event/rpc/libspdk_app_rpc.a \
+	$(SPDK_ROOT_DIR)/lib/log/rpc/libspdk_log_rpc.a \
 
 LIBS += $(BLOCKDEV_MODULES_LINKER_ARGS) \
         $(COPY_MODULES_LINKER_ARGS)

test/nvmf/common.sh

@@ -4,6 +4,7 @@ NVMF_PORT=4420
 NVMF_IP_PREFIX="192.168.100"
 NVMF_IP_LEAST_ADDR=8
 NVMF_FIRST_TARGET_IP=$NVMF_IP_PREFIX.$NVMF_IP_LEAST_ADDR
+RPC_PORT=5260
 
 function load_ib_rdma_modules()
 {

test/nvmf/discovery/discovery.sh

@@ -25,7 +25,7 @@ nvmfpid=$!
 
 trap "killprocess $nvmfpid; exit 1" SIGINT SIGTERM EXIT
 
-sleep 10
+waitforlisten $nvmfpid ${RPC_PORT}
 
 modprobe -v nvme-rdma
 

test/nvmf/filesystem/filesystem.sh

@@ -20,7 +20,7 @@ nvmfpid=$!
 
 trap "killprocess $nvmfpid; exit 1" SIGINT SIGTERM EXIT
 
-sleep 5
+waitforlisten $nvmfpid ${RPC_PORT}
 
 modprobe -v nvme-rdma
 

test/nvmf/fio/fio.sh

@@ -20,7 +20,7 @@ nvmfpid=$!
 
 trap "killprocess $nvmfpid; exit 1" SIGINT SIGTERM EXIT
 
-sleep 10
+waitforlisten $nvmfpid ${RPC_PORT}
 
 modprobe -v nvme-rdma
 

test/nvmf/nvme_cli/nvme_cli.sh

@@ -19,7 +19,7 @@ nvmfpid=$!
 
 trap "killprocess $nvmfpid; exit 1" SIGINT SIGTERM EXIT
 
-sleep 5
+waitforlisten $nvmfpid ${RPC_PORT}
 
 modprobe -v nvme-rdma
 

test/nvmf/nvmf.conf

@@ -2,6 +2,9 @@
   Comment "Global section"
   LogFacility "local7"
 
+[Rpc]
+  Enable Yes
+
 [Nvmf]
   MaxQueuesPerSession 4