diff mbox series

[v2,5/5] examples/ipv4_multicast: remove redundant Tx queue limit

Message ID 20251122155156.1385975-5-sivaprasad.tummala@amd.com (mailing list archive)
State New
Delegated to: Thomas Monjalon
Headers
Series [v2,1/5] examples/l3fwd-graph: remove redundant Tx queue limit |

Checks

Context Check Description
ci/Intel-compilation success Compilation OK
ci/intel-Testing success Testing PASS
ci/intel-Functional success Functional PASS

Commit Message

Sivaprasad Tummala Nov. 22, 2025, 3:51 p.m. UTC 
In `ipv4_multicast` 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.

Fixes: af75078fece3 ("first public release")
Cc: stable@dpdk.org

Signed-off-by: Sivaprasad Tummala <sivaprasad.tummala@amd.com>
---
 examples/ipv4_multicast/main.c | 3 ---
 1 file changed, 3 deletions(-)
diff mbox series

Patch

diff --git a/examples/ipv4_multicast/main.c b/examples/ipv4_multicast/main.c
index 1eed645d02..b698db21de 100644
--- a/examples/ipv4_multicast/main.c
+++ b/examples/ipv4_multicast/main.c
@@ -97,7 +97,6 @@  struct mbuf_table {
 };
 
 #define MAX_RX_QUEUE_PER_LCORE 16
-#define MAX_TX_QUEUE_PER_PORT 16
 struct __rte_cache_aligned lcore_queue_conf {
 	uint64_t tx_tsc;
 	uint16_t n_rx_queue;
@@ -736,8 +735,6 @@  main(int argc, char **argv)
 		fflush(stdout);
 
 		n_tx_queue = nb_lcores;
-		if (n_tx_queue > MAX_TX_QUEUE_PER_PORT)
-			n_tx_queue = MAX_TX_QUEUE_PER_PORT;
 
 		ret = rte_eth_dev_configure(portid, 1, (uint16_t)n_tx_queue,
 					    &local_port_conf);