[PATCH] net/mana: fix counter overflow for posted WQE

longli at linuxonhyperv.com longli at linuxonhyperv.com
Mon Jul 10 23:34:41 CEST 2023


From: Long Li <longli at microsoft.com>

This counter should set to uint16_t, the same type as pkt_received.
Otherwise, it may overflow when pkt_received goes over 256.

Thanks Xinhao Kong <t-kongxinhao at microsoft.com> for debugging.

Fixes: 517ed6e2d590 ("net/mana: add basic driver with build environment")
Cc: stable at dpdk.org
---
 drivers/net/mana/rx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/mana/rx.c b/drivers/net/mana/rx.c
index 1047ac1743..b840e402f9 100644
--- a/drivers/net/mana/rx.c
+++ b/drivers/net/mana/rx.c
@@ -399,7 +399,7 @@ uint16_t
 mana_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n)
 {
 	uint16_t pkt_received = 0;
-	uint8_t wqe_posted = 0;
+	uint16_t wqe_posted = 0;
 	struct mana_rxq *rxq = dpdk_rxq;
 	struct mana_priv *priv = rxq->priv;
 	struct rte_mbuf *mbuf;
-- 
2.34.1



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