From: Raslan Darawsheh <rasland@mellanox.com>
To: dev@dpdk.org
Cc: Raslan Darawsheh <rasland@mellanox.com>,
Adrien Mazarguil <adrien.mazarguil@6wind.com>
Subject: [dpdk-dev] [PATCH] net/mlx5: fix handling of small mbuf sizes
Date: Mon, 24 Oct 2016 11:10:59 +0300 [thread overview]
Message-ID: <937aac679e571c4fff8ab720f4dd910fe10a283e.1477296585.git.rasland@mellanox.com> (raw)
When mbufs are smaller than MRU, multi-segment support must be enabled to
default set when not in promiscuous or allmulticast modes.
Fixes: 9964b965ad69 ("net/mlx5: re-add Rx scatter support")
Signed-off-by: Raslan Darawsheh <rasland@mellanox.com>
---
drivers/net/mlx5/mlx5_rxq.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index 4dc5cc3..62253ed 100644
--- a/drivers/net/mlx5/mlx5_rxq.c
+++ b/drivers/net/mlx5/mlx5_rxq.c
@@ -946,6 +946,12 @@ rxq_ctrl_setup(struct rte_eth_dev *dev, struct rxq_ctrl *rxq_ctrl,
(void)conf; /* Thresholds configuration (ignored). */
/* Enable scattered packets support for this queue if necessary. */
assert(mb_len >= RTE_PKTMBUF_HEADROOM);
+ /* If smaller than MRU, multi-segment support must be enabled. */
+ if (mb_len < (priv->mtu > dev->data->dev_conf.rxmode.max_rx_pkt_len ?
+ dev->data->dev_conf.rxmode.max_rx_pkt_len :
+ priv->mtu
+ ))
+ dev->data->dev_conf.rxmode.jumbo_frame = 1;
if ((dev->data->dev_conf.rxmode.jumbo_frame) &&
(dev->data->dev_conf.rxmode.max_rx_pkt_len >
(mb_len - RTE_PKTMBUF_HEADROOM))) {
--
1.9.1
next reply other threads:[~2016-10-24 8:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-24 8:10 Raslan Darawsheh [this message]
2016-10-28 12:19 ` Adrien Mazarguil
2016-11-07 17:22 ` Thomas Monjalon
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