[dpdk-stable] [PATCH v2] app/testpmd: fix testpmd doesn't show RSS hash offload

[Jie Wang <jie1x.wang@intel.com>]

This patch reapply Rx/Tx offloads configuration for all ports
after the program configuring the device port. When the program
configures the ports, the default Rx/Tx offloads are modified in
dev->data->dev_conf.

So it is need to reapply Rx/Tx offloads configuration after
dev_configure.

Fixes: ce8d561418d4 ("app/testpmd: add port configuration settings")
Cc: stable@dpdk.org

Signed-off-by: Jie Wang <jie1x.wang@intel.com>
---
v2: copy "rx/txmode.offloads", instead of copying the entire struct 
"dev->data->dev_conf.rx/txmode".
---
 app/test-pmd/testpmd.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index 1cdd3cdd12..dc9ce5330b 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -2475,6 +2475,11 @@ start_port(portid_t pid)
 		}
 
 		if (port->need_reconfig > 0) {
+			const struct rte_eth_dev *dev = &rte_eth_devices[pi];
+			struct rte_eth_conf *dev_conf;
+			int k;
+
+			dev_conf = &dev->data->dev_conf;
 			port->need_reconfig = 0;
 
 			if (flow_isolate_all) {
@@ -2508,6 +2513,20 @@ start_port(portid_t pid)
 				port->need_reconfig = 1;
 				return -1;
 			}
+			/* Apply Rx offloads configuration */
+			for (k = 0; k < port->dev_info.max_rx_queues; k++) {
+				if (port->rx_conf[k].offloads !=
+					dev_conf->rxmode.offloads)
+					port->rx_conf[k].offloads =
+						dev_conf->rxmode.offloads;
+			}
+			/* Apply Tx offloads configuration */
+			for (k = 0; k < port->dev_info.max_tx_queues; k++) {
+				if (port->tx_conf[k].offloads !=
+					dev_conf->txmode.offloads)
+					port->tx_conf[k].offloads =
+						dev_conf->txmode.offloads;
+			}
 		}
 		if (port->need_reconfig_queues > 0) {
 			port->need_reconfig_queues = 0;
-- 
2.25.1