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From: Mohsin Shaikh <mohsinshaikh@niometrics.com>
To: dev@dpdk.org
Cc: stable@dpdk.org, akozyrev@mellanox.com,
	Mohsin Shaikh <mohsinshaikh@niometrics.com>
Subject: [dpdk-dev] [PATCH] net/mlx5: Allow configuring mlx5 port for TX only
Date: Mon, 13 Apr 2020 21:15:44 +0800	[thread overview]
Message-ID: <1586783744-8962-1-git-send-email-mohsinshaikh@niometrics.com> (raw)

Configuring mlx5 port with 0 rx rings and 1 or more tx rings causes following
error in dev_start:
    net_mlx5: port 1 cannot allocate RSS queue list (0)
    net_mlx5: port 1 reta config failed: Cannot allocate memory
Skip mlx5_dev_configure_rss_reta() when there are no rx rings.

Cc: stable@dpdk.org
Signed-off-by: Mohsin Shaikh <mohsinshaikh@niometrics.com>
---
 drivers/net/mlx5/mlx5_ethdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c
index d7d3bc7..1d443c1 100644
--- a/drivers/net/mlx5/mlx5_ethdev.c
+++ b/drivers/net/mlx5/mlx5_ethdev.c
@@ -463,7 +463,7 @@ struct ethtool_link_settings {
 	unsigned int *rss_queue_arr = NULL;
 	unsigned int rss_queue_n = 0;
 
-	if (priv->skip_default_rss_reta)
+	if (priv->skip_default_rss_reta || !rxqs_n)
 		return ret;
 	rss_queue_arr = rte_malloc("", rxqs_n * sizeof(unsigned int), 0);
 	if (!rss_queue_arr) {
-- 
1.8.3.1


             reply	other threads:[~2020-04-13 13:16 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-13 13:15 Mohsin Shaikh [this message]
2020-04-13 14:47 ` [dpdk-dev] [PATCH v2] " Mohsin Shaikh
2020-04-13 18:50   ` Alexander Kozyrev

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