Fixed issue could occur when a Mbuf starvation happens in a middle of
reception of a segmented packet, in such situation, the PMD has to release
all segments of such packet. The end condition was wrong causing it to
free a Mbuf still handled by the NIC.
Fixes: 9964b965ad69 ("net/mlx5: re-add Rx scatter support")
Reported-by: Yongseok Koh <yskoh at mellanox.com>
Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro at 6wind.com>
---
drivers/net/mlx5/mlx5_rxtx.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c
index 0c352f3..3564937 100644
--- a/drivers/net/mlx5/mlx5_rxtx.c
+++ b/drivers/net/mlx5/mlx5_rxtx.c
@@ -1572,7 +1572,8 @@ mlx5_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts,
uint16_t pkts_n)
rte_prefetch0(wqe);
rep = rte_mbuf_raw_alloc(rxq->mp);
if (unlikely(rep == NULL)) {
- while (pkt) {
+ while (pkt != seg) {
+ assert(pkt != (*rxq->elts)[idx]);
seg = NEXT(pkt);
rte_mbuf_refcnt_set(pkt, 0);
__rte_mbuf_raw_free(pkt);
--
2.1.4
