diff mbox series

[v4,1/4] net/af_xdp: enqueue buf ring when allocate Tx queue fails

Message ID 20190417134946.1250-2-xiaolong.ye@intel.com (mailing list archive)
State Accepted, archived
Delegated to: Ferruh Yigit
Headers
Series some fixes for AF_XDP pmd |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK
ci/mellanox-Performance-Testing success Performance Testing PASS
ci/intel-Performance-Testing success Performance Testing PASS

Commit Message

Xiaolong Ye April 17, 2019, 1:49 p.m. UTC 
  When it fails to allocate enough slots in Tx queue for transmitting
packets, we need to return the dequeued addrs to buf ring.

Fixes: f1debd77efaf ("net/af_xdp: introduce AF_XDP PMD")

Reviewed-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Xiaolong Ye <xiaolong.ye@intel.com>
---
 drivers/net/af_xdp/rte_eth_af_xdp.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/drivers/net/af_xdp/rte_eth_af_xdp.c b/drivers/net/af_xdp/rte_eth_af_xdp.c
index 007a1c6b4..5cc643ce2 100644
--- a/drivers/net/af_xdp/rte_eth_af_xdp.c
+++ b/drivers/net/af_xdp/rte_eth_af_xdp.c
@@ -276,6 +276,7 @@  eth_af_xdp_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
 
 	if (xsk_ring_prod__reserve(&txq->tx, nb_pkts, &idx_tx) != nb_pkts) {
 		kick_tx(txq);
+		rte_ring_enqueue_bulk(umem->buf_ring, addrs, nb_pkts, NULL);
 		return 0;
 	}