[dpdk-dev] [PATCH] net/i40e: mbuf alloc failed counter not incremented

[Allain Legacy <allain.legacy@windriver.com>]

From: Matt Peters <matt.peters@windriver.com>

When an mbuf alloc fails during the mempool get operation for the
i40e bulk alloc receive function, the rx_mbuf_alloc_failed counter
is not incremented to record the error.

This fix ensures consistency with the other i40e receive procedures and
other net drivers.

Signed-off-by: Matt Peters <matt.peters@windriver.com>
Signed-off-by: Allain Legacy <allain.legacy@windriver.com>
---
 drivers/net/i40e/i40e_rxtx.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c
index ec64a20eb..794d8717e 100644
--- a/drivers/net/i40e/i40e_rxtx.c
+++ b/drivers/net/i40e/i40e_rxtx.c
@@ -610,6 +610,7 @@ static inline uint16_t
 rx_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
 {
 	struct i40e_rx_queue *rxq = (struct i40e_rx_queue *)rx_queue;
+	struct rte_eth_dev *dev;
 	uint16_t nb_rx = 0;
 
 	if (!nb_pkts)
@@ -630,6 +631,10 @@ rx_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
 			PMD_RX_LOG(DEBUG, "Rx mbuf alloc failed for "
 				   "port_id=%u, queue_id=%u",
 				   rxq->port_id, rxq->queue_id);
+
+			dev = &rte_eth_devices[rxq->port_id];
+			dev->data->rx_mbuf_alloc_failed += rxq->rx_free_thresh;
+
 			rxq->rx_nb_avail = 0;
 			rxq->rx_tail = (uint16_t)(rxq->rx_tail - nb_rx);
 			for (i = 0, j = rxq->rx_tail; i < nb_rx; i++, j++)
-- 
2.12.1