[PATCH v2 2/5] examples/l3fwd: remove redundant Tx queue limit
Sivaprasad Tummala
sivaprasad.tummala at amd.com
Sat Nov 22 16:51:53 CET 2025
In `l3fwd` application, Tx queues are configured per lcore
to enable a lockless design and achieve optimal performance.
The `MAX_TX_QUEUE_PER_PORT` macro, defined as `RTE_MAX_ETHPORTS`,
introduced an artificial constraint on the number of Tx queues
and limited core-scaling performance.
This patch removes the unused `MAX_TX_QUEUE_PER_PORT` macro and
redundant Tx queue check, allowing Tx queues to scale directly
with the no. of lcores.
Signed-off-by: Sivaprasad Tummala <sivaprasad.tummala at amd.com>
---
examples/l3fwd/main.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/examples/l3fwd/main.c b/examples/l3fwd/main.c
index ae3b4f6439..bdf59b5399 100644
--- a/examples/l3fwd/main.c
+++ b/examples/l3fwd/main.c
@@ -49,7 +49,6 @@
#include "l3fwd_event.h"
#include "l3fwd_route.h"
-#define MAX_TX_QUEUE_PER_PORT RTE_MAX_LCORE
#define MAX_RX_QUEUE_PER_PORT 128
#define MAX_LCORE_PARAMS 1024
@@ -1341,8 +1340,6 @@ l3fwd_poll_resource_setup(void)
nb_rx_queue = get_port_n_rx_queues(portid);
n_tx_queue = nb_lcores;
- if (n_tx_queue > MAX_TX_QUEUE_PER_PORT)
- n_tx_queue = MAX_TX_QUEUE_PER_PORT;
printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
nb_rx_queue, (unsigned)n_tx_queue );
--
2.43.0
More information about the dev
mailing list