[dpdk-dev] [PATCH] app/testpmd: display devargs in port info output

[Ferruh Yigit <ferruh.yigit@intel.com>]

Devargs may affect how device works but currently we don't have a
way to observe provided devargs.

Add ability to print device argument as part of port info,

For example, for "--vdev net_pcap0,iface=lo" output will be

"
********************* Infos for port 1  *********************
MAC address: 02:70:63:61:70:00
Device name: net_pcap0
Driver name: net_pcap
Devargs: iface=lo
....
"

or for "-w0000:86:00.1,queue-num-per-vf=8",

"
********************* Infos for port 0  *********************
MAC address: 3C:FD:FE:AB:B4:41
Device name: 0000:86:00.1
Driver name: net_i40e
Devargs: queue-num-per-vf=8
....
"

`Devargs` line may not be printed at all if devargs is not provided for
that device.

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
 app/test-pmd/config.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index 86c205806..67a4a309e 100644
--- a/app/test-pmd/config.c
+++ b/app/test-pmd/config.c
@@ -410,6 +410,8 @@ port_infos_display(portid_t port_id)
 	rte_eth_dev_get_name_by_port(port_id, name);
 	printf("\nDevice name: %s", name);
 	printf("\nDriver name: %s", dev_info.driver_name);
+	if (dev_info.device->devargs && dev_info.device->devargs->args)
+		printf("\nDevargs: %s", dev_info.device->devargs->args);
 	printf("\nConnect to socket: %u", port->socket_id);
 
 	if (port_numa[port_id] != NUMA_NO_CONFIG) {
-- 
2.17.1