The offloads of 'tx/rx_conf' didn't keep up with the corresponding
offloads of 'dev_conf', it would cause the configuration invalid.

For example:
Configuring 'max-pkt-len' would change 'rx_offloads' in dev_conf while
rx_conf.offloads of each queue still kept the old value.
It would cause the failure of offloads check in 'rte_eth_rx_queue_setup'.

This patch applied tx/rx offloads configuration for each queue
once it changed.

Fixes: 5e91aeef218c ("app/testpmd: fix offload flags after port config")

Signed-off-by: Steve Yang <stevex.y...@intel.com>
---
v2:
 * moved the update logic to 'rxtx_port_config';
 * added the 'tx_conf' part;
 * optimized the 'default' assignment;
---
 app/test-pmd/testpmd.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index 33a060dffd..6ee28e3797 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -3288,9 +3288,11 @@ rxtx_port_config(struct rte_port *port)
 
        for (qid = 0; qid < nb_rxq; qid++) {
                offloads = port->rx_conf[qid].offloads;
-               port->rx_conf[qid] = port->dev_info.default_rxconf;
-               if (offloads != 0)
-                       port->rx_conf[qid].offloads = offloads;
+               if (offloads != port->dev_conf.rxmode.offloads)
+                       port->rx_conf[qid].offloads =
+                               port->dev_conf.rxmode.offloads;
+               if (!offloads)
+                       port->rx_conf[qid] = port->dev_info.default_rxconf;
 
                /* Check if any Rx parameters have been passed */
                if (rx_pthresh != RTE_PMD_PARAM_UNSET)
@@ -3313,9 +3315,11 @@ rxtx_port_config(struct rte_port *port)
 
        for (qid = 0; qid < nb_txq; qid++) {
                offloads = port->tx_conf[qid].offloads;
-               port->tx_conf[qid] = port->dev_info.default_txconf;
-               if (offloads != 0)
-                       port->tx_conf[qid].offloads = offloads;
+               if (offloads != port->dev_conf.txmode.offloads)
+                       port->tx_conf[qid].offloads =
+                               port->dev_conf.txmode.offloads;
+               if (!offloads)
+                       port->tx_conf[qid] = port->dev_info.default_txconf;
 
                /* Check if any Tx parameters have been passed */
                if (tx_pthresh != RTE_PMD_PARAM_UNSET)
-- 
2.17.1

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