d/numam-dpdk
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

net/mlx4: fix Rx after mbuf alloc failure

Browse Source 
Fixes issue where mlx4 driver stops receiving packets when mbuf
allocation fails in mlx4_rx_burst().

This issue appears to be caused because the code doesn't recycle the
existing mbuf to the sges array when mbuf allocation fails as is done
in the code right above it which handles (wc.status != IBV_WC_SUCCESS).

Copying the code from the above case fixes the issue.

Fixes: acac55f16412 ("mlx4: use MOFED 3.0 fast verbs interface for Rx operations")
Cc: stable@dpdk.org

Signed-off-by: Charles Myers <charles.myers@spirent.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
This commit is contained in:
Charles Myers 2017-04-13 12:15:24 -10:00 committed by Ferruh Yigit
parent c32c2c06bc
commit 1193edaa82
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/mlx4/mlx4.c
View File

@ -3170,6 +3170,8 @@ mlx4_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n)
/* Increase out of memory counters. */
++rxq->stats.rx_nombuf;
++rxq->priv->dev->data->rx_mbuf_alloc_failed;
/* Add SGE to array for repost. */
sges[i] = elt->sge;
goto repost;
}