[dpdk-dev] [PATCH] app/testpmd: support unequal number of RXQ and TXQ

[Hemant Agrawal]

From: Jun Yang <jun.yang at nxp.com>

The existing forwarding mode usages the total number of
queues as the minimum of rxq and txq.
It finds the txq as the same index as rxq.
However in some scenarios, specially for flow control
the number of rxq and txq can be different.
This patch maxes the txq and function of rxq for all such
scenario instead of keeping 1:1 relationship between the two.

Now packets from all RXQs can be forwarded to TXQs

Signed-off-by: Jun Yang <jun.yang at nxp.com>
---
 app/test-pmd/config.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index d59968278..efa409453 100644
--- a/app/test-pmd/config.c
+++ b/app/test-pmd/config.c
@@ -2130,8 +2130,6 @@ rss_fwd_config_setup(void)
 	streamid_t  sm_id;
 
 	nb_q = nb_rxq;
-	if (nb_q > nb_txq)
-		nb_q = nb_txq;
 	cur_fwd_config.nb_fwd_lcores = (lcoreid_t) nb_fwd_lcores;
 	cur_fwd_config.nb_fwd_ports = nb_fwd_ports;
 	cur_fwd_config.nb_fwd_streams =
@@ -2154,7 +2152,7 @@ rss_fwd_config_setup(void)
 		fs->rx_port = fwd_ports_ids[rxp];
 		fs->rx_queue = rxq;
 		fs->tx_port = fwd_ports_ids[txp];
-		fs->tx_queue = rxq;
+		fs->tx_queue = (rxq % nb_txq);
 		fs->peer_addr = fs->tx_port;
 		fs->retry_enabled = retry_enabled;
 		rxp++;
-- 
2.17.1