[dpdk-dev] [PATCH] examples/l3fwd: change mq-mode on single queue devices

Heinrich Kuhn heinrich.kuhn at netronome.com
Mon May 10 18:53:19 CEST 2021


From: "Chaoyong.He" <chaoyong.he at corigine.com>

Set the Rx multi-queue mode to NONE when configuring a port that is
associated with hardware that only supports a single Rx queue.

Signed-off-by: Chaoyong He <chaoyong.he at corigine.com>
Signed-off-by: Heinrich Kuhn <heinrich.kuhn at netronome.com>
Signed-off-by: Simon Horman <simon.horman at netronome.com>
---
 examples/l3fwd/main.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/examples/l3fwd/main.c b/examples/l3fwd/main.c
index bb49e5faf..87b638ac0 100644
--- a/examples/l3fwd/main.c
+++ b/examples/l3fwd/main.c
@@ -953,6 +953,10 @@ l3fwd_poll_resource_setup(void)
 
 		local_port_conf.rx_adv_conf.rss_conf.rss_hf &=
 			dev_info.flow_type_rss_offloads;
+
+		if (dev_info.max_rx_queues == 1)
+			local_port_conf.rxmode.mq_mode = ETH_MQ_RX_NONE;
+
 		if (local_port_conf.rx_adv_conf.rss_conf.rss_hf !=
 				port_conf.rx_adv_conf.rss_conf.rss_hf) {
 			printf("Port %u modified RSS hash function based on hardware support,"
-- 
2.30.1 (Apple Git-130)



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