From: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
To: stable@dpdk.org
Cc: matan@mellanox.com, bluca@debian.org, ktraynor@redhat.com
Subject: [dpdk-stable] [PATCH] net/mlx5: fix inline packet size for ConnectX-4LX
Date: Fri, 21 Feb 2020 09:55:15 +0000 [thread overview]
Message-ID: <1582278915-31503-1-git-send-email-viacheslavo@mellanox.com> (raw)
This patch does extra inline packet size check to tune
the ConnectX-4LX performance in the legacy Multi-Packet Write
mode.
Fixes: 7593cf1d3500 ("net/mlx5: fix legacy multi-packet write session")
Cc: stable@dpdk.org
Signed-off-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
---
drivers/net/mlx5/mlx5_rxtx.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c
index b55db4f..0df811b 100644
--- a/drivers/net/mlx5/mlx5_rxtx.c
+++ b/drivers/net/mlx5/mlx5_rxtx.c
@@ -4281,6 +4281,8 @@ enum mlx5_txcmp_code {
loc->mbuf->ol_flags & PKT_TX_DYNF_NOINLINE)
goto pointer_empw;
if (MLX5_TXOFF_CONFIG(MPW)) {
+ if (dlen > txq->inlen_send)
+ goto pointer_empw;
tlen = dlen;
if (part == room) {
/* Open new inline MPW session. */
--
1.8.3.1
reply other threads:[~2020-02-21 9:55 UTC|newest]
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