[dpdk-dev] [PATCH] app/testpmd: fix vdev socket initialization

[Phil Yang <phil.yang@arm.com>]

The cmdline settings of port-numa-config and rxring-numa-config have been
flushed by the following init_config. If we don't configure the
port-numa-config, the virtual device will allocate the device ports to
socket 0. It will cause failure when the socket 0 is unavailable.

eg:
testpmd -l <cores from socket 1> --vdev net_pcap0,iface=lo
--socket-mem=64 -- --numa --port-numa-config="(0,1)"
--ring-numa-config="(0,1,1),(0,2,1)" -i

...
Configuring Port 0 (socket 0)
Failed to setup RX queue:No mempool allocation on the socket 0
EAL: Error - exiting with code: 1
  Cause: Start ports failed

Fix by allocate the devices port to the first available socket or the
socket configured in port-numa-config.

Fixes: 487f9a5 ("app/testpmd: fix NUMA structures initialization")

Signed-off-by: Phil Yang <phil.yang@arm.com>
Reviewed-by: Gavin Hu <Gavin.Hu@arm.com>
---
 app/test-pmd/testpmd.c | 29 +++++++++++++++++------------
 1 file changed, 17 insertions(+), 12 deletions(-)

diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index d550bda..1279cd5 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -1024,12 +1024,6 @@ init_config(void)
 
 	memset(port_per_socket,0,RTE_MAX_NUMA_NODES);
 
-	if (numa_support) {
-		memset(port_numa, NUMA_NO_CONFIG, RTE_MAX_ETHPORTS);
-		memset(rxring_numa, NUMA_NO_CONFIG, RTE_MAX_ETHPORTS);
-		memset(txring_numa, NUMA_NO_CONFIG, RTE_MAX_ETHPORTS);
-	}
-
 	/* Configuration of logical cores. */
 	fwd_lcores = rte_zmalloc("testpmd: fwd_lcores",
 				sizeof(struct fwd_lcore *) * nb_lcores,
@@ -1066,9 +1060,12 @@ init_config(void)
 			else {
 				uint32_t socket_id = rte_eth_dev_socket_id(pid);
 
-				/* if socket_id is invalid, set to 0 */
+				/*
+				 * if socket_id is invalid,
+				 * set to the first available socket.
+				 */
 				if (check_socket_id(socket_id) < 0)
-					socket_id = 0;
+					socket_id = socket_ids[0];
 				port_per_socket[socket_id]++;
 			}
 		}
@@ -1224,9 +1221,12 @@ init_fwd_streams(void)
 			else {
 				port->socket_id = rte_eth_dev_socket_id(pid);
 
-				/* if socket_id is invalid, set to 0 */
+				/*
+				 * if socket_id is invalid,
+				 * set to the first available socket.
+				 */
 				if (check_socket_id(port->socket_id) < 0)
-					port->socket_id = 0;
+					port->socket_id = socket_ids[0];
 			}
 		}
 		else {
@@ -2330,9 +2330,9 @@ attach_port(char *identifier)
 		return;
 
 	socket_id = (unsigned)rte_eth_dev_socket_id(pi);
-	/* if socket_id is invalid, set to 0 */
+	/* if socket_id is invalid, set to the first available socket. */
 	if (check_socket_id(socket_id) < 0)
-		socket_id = 0;
+		socket_id = socket_ids[0];
 	reconfig(pi, socket_id);
 	rte_eth_promiscuous_enable(pi);
 
@@ -2971,6 +2971,11 @@ init_port(void)
 				"rte_zmalloc(%d struct rte_port) failed\n",
 				RTE_MAX_ETHPORTS);
 	}
+
+	/* Initialize ports NUMA structures */
+	memset(port_numa, NUMA_NO_CONFIG, RTE_MAX_ETHPORTS);
+	memset(rxring_numa, NUMA_NO_CONFIG, RTE_MAX_ETHPORTS);
+	memset(txring_numa, NUMA_NO_CONFIG, RTE_MAX_ETHPORTS);
 }
 
 static void
-- 
2.7.4