[PATCH 2/2] net/i40e: fix mbufs leakage during Rx queue release
From: Yury Kylulin <hidden>
Date: 2016-08-29 16:54:54
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
For the vector PMD release all mbufs from the Rx queue if no packets
received after device start.
Fixes: 9ed94e5bb04e ("i40e: add vector Rx")
Signed-off-by: Yury Kylulin <redacted>
---
drivers/net/i40e/i40e_rxtx_vec.c | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
diff --git a/drivers/net/i40e/i40e_rxtx_vec.c b/drivers/net/i40e/i40e_rxtx_vec.c
index 51fb282..82571ee 100644
--- a/drivers/net/i40e/i40e_rxtx_vec.c
+++ b/drivers/net/i40e/i40e_rxtx_vec.c@@ -692,8 +692,20 @@ i40e_rx_queue_release_mbufs_vec(struct i40e_rx_queue *rxq) return; /* free all mbufs that are valid in the ring */ - for (i = rxq->rx_tail; i != rxq->rxrearm_start; i = (i + 1) & mask) - rte_pktmbuf_free_seg(rxq->sw_ring[i].mbuf); + if (rxq->rxrearm_nb == 0) { + for (i = 0; i < rxq->nb_rx_desc; i++) { + if (rxq->sw_ring[i].mbuf != NULL) + rte_pktmbuf_free_seg(rxq->sw_ring[i].mbuf); + } + } else { + for (i = rxq->rx_tail; + i != rxq->rxrearm_start; + i = (i + 1) & mask) { + if (rxq->sw_ring[i].mbuf != NULL) + rte_pktmbuf_free_seg(rxq->sw_ring[i].mbuf); + } + } + rxq->rxrearm_nb = rxq->nb_rx_desc; /* set all entries to NULL */
--
2.7.4