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 at 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
