[dpdk-stable] [PATCH] app/testpmd: fix crash when attaching a device

[Adrien Mazarguil]

Below commit checks global device information to determine if a port uses
the softnic driver once initialized. Problem is that this information is
not available at this point when a port is initialized interactively
through a "port attach XXX" command, crashing testpmd.

This patch systematically initializes global device information to address
this issue.

Fixes: 5b590fbe09b6 ("app/testpmd: add traffic management forwarding mode")
Cc: stable at dpdk.org
Cc: Jasvinder Singh <jasvinder.singh at intel.com>

Signed-off-by: Adrien Mazarguil <adrien.mazarguil at 6wind.com>
---
 app/test-pmd/testpmd.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index 35cf26674..24c199844 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -2355,16 +2355,15 @@ init_port_config(void)
 {
 	portid_t pid;
 	struct rte_port *port;
-	struct rte_eth_dev_info dev_info;
 
 	RTE_ETH_FOREACH_DEV(pid) {
 		port = &ports[pid];
 		port->dev_conf.fdir_conf = fdir_conf;
+		rte_eth_dev_info_get(pid, &port->dev_info);
 		if (nb_rxq > 1) {
-			rte_eth_dev_info_get(pid, &dev_info);
 			port->dev_conf.rx_adv_conf.rss_conf.rss_key = NULL;
 			port->dev_conf.rx_adv_conf.rss_conf.rss_hf =
-				rss_hf & dev_info.flow_type_rss_offloads;
+				rss_hf & port->dev_info.flow_type_rss_offloads;
 		} else {
 			port->dev_conf.rx_adv_conf.rss_conf.rss_key = NULL;
 			port->dev_conf.rx_adv_conf.rss_conf.rss_hf = 0;
-- 
2.11.0