From 3cbb9690d4ae8540ec937f57605e3819c0bdbaee Mon Sep 17 00:00:00 2001
From: Evgeniy Kochetov <evgeniik@mellanox.com>
Date: Sun, 28 Jul 2019 11:43:47 +0000
Subject: [PATCH] test/nvmf: Add test for nvmf_get_stats RPC method

Signed-off-by: Evgeniy Kochetov <evgeniik@mellanox.com>
Change-Id: I1f9d2f75831a93dded21d06de63d9f6f40b1a013
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/463390
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
---
 test/nvmf/target/rpc.sh | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/test/nvmf/target/rpc.sh b/test/nvmf/target/rpc.sh
index 2d668f7b1..1cf1f4a4b 100755
--- a/test/nvmf/target/rpc.sh
+++ b/test/nvmf/target/rpc.sh
@@ -7,12 +7,42 @@ source $rootdir/test/nvmf/common.sh
 
 rpc_py="$rootdir/scripts/rpc.py"
 
+function jcount()
+{
+    local filter=$1
+    jq "$filter" | wc -l
+}
+
+function jsum()
+{
+    local filter=$1
+    jq "$filter" | awk '{s+=$1}END{print s}'
+}
+
 timing_enter rpc
 nvmftestinit
 nvmfappstart "-m 0xF"
 
+stats=$($rpc_py nvmf_get_stats)
+# Expect 4 poll groups (from CPU mask) and no transports yet
+[ "4" -eq $(jcount .poll_groups[].name <<< "$stats") ]
+[ "null" == $(jq .poll_groups[0].transports[0] <<< "$stats") ]
+
 $rpc_py nvmf_create_transport $NVMF_TRANSPORT_OPTS -u 8192
 
+stats=$($rpc_py nvmf_get_stats)
+# Expect no QPs
+[ "0" -eq $(jsum .poll_groups[].admin_qpairs <<< "$stats") ]
+[ "0" -eq $(jsum .poll_groups[].io_qpairs <<< "$stats") ]
+# Transport statistics is currently implemented for RDMA only
+if [ 'rdma' == $TEST_TRANSPORT ]; then
+    # Expect RDMA transport and some devices
+    [ "1" -eq $(jcount .poll_groups[0].transports[].trtype <<< "$stats") ]
+    transport_type=$(jq -r .poll_groups[0].transports[0].trtype <<< "$stats")
+    [ "${transport_type,,}" == "${TEST_TRANSPORT,,}" ]
+    [ "0" -lt $(jcount .poll_groups[0].transports[0].devices[].name <<< "$stats") ]
+fi
+
 # set times for subsystem construct/delete
 if [ $RUN_NIGHTLY -eq 1 ]; then
 	times=50
@@ -83,6 +113,17 @@ do
 	$rpc_py delete_nvmf_subsystem nqn.2016-06.io.spdk:cnode1
 done
 
+stats=$($rpc_py nvmf_get_stats)
+# Expect some admin and IO qpairs
+[ "0" -lt $(jsum .poll_groups[].admin_qpairs <<< "$stats") ]
+[ "0" -lt $(jsum .poll_groups[].io_qpairs <<< "$stats") ]
+# Transport statistics is currently implemented for RDMA only
+if [ 'rdma' == $TEST_TRANSPORT ]; then
+    # Expect non-zero completions and request latencies accumulated
+    [ "0" -lt $(jsum .poll_groups[].transports[].devices[].completions <<< "$stats") ]
+    [ "0" -lt $(jsum .poll_groups[].transports[].devices[].request_latency <<< "$stats") ]
+fi
+
 trap - SIGINT SIGTERM EXIT
 
 nvmftestfini