In the iavf_dev_rx_queue_start function, if the iavf_switch_queue
or iavf_switch_queue_lv function fails, the previously applied mbuf
is not released, resulting in leakage. The patch fixes the problem.
Fixes: 9cf9c02bf6ee ("net/iavf: add enable/disable queues for large VF")
Cc: sta...@dpdk.org
Signed-off-by: Qiming Chen <chenqiming_hua...@163.com>
---
v2:
Solve the potential mbuf leak of the alloc_rxq_mbufs function itself.
---
drivers/net/iavf/iavf_rxtx.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/drivers/net/iavf/iavf_rxtx.c b/drivers/net/iavf/iavf_rxtx.c
index e33fe4576b..7ec4f241e2 100644
--- a/drivers/net/iavf/iavf_rxtx.c
+++ b/drivers/net/iavf/iavf_rxtx.c
@@ -274,11 +274,15 @@ alloc_rxq_mbufs(struct iavf_rx_queue *rxq)
volatile union iavf_rx_desc *rxd;
struct rte_mbuf *mbuf = NULL;
uint64_t dma_addr;
- uint16_t i;
+ uint16_t i, j;
for (i = 0; i < rxq->nb_rx_desc; i++) {
mbuf = rte_mbuf_raw_alloc(rxq->mp);
if (unlikely(!mbuf)) {
+ for (j = 0; j < i; j++) {
+ rte_pktmbuf_free_seg(rxq->sw_ring[j]);
+ rxq->sw_ring[j] = NULL;
+ }
PMD_DRV_LOG(ERR, "Failed to allocate mbuf for RX");
return -ENOMEM;
}
@@ -848,12 +852,14 @@ iavf_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t
rx_queue_id)
else
err = iavf_switch_queue_lv(adapter, rx_queue_id, true, true);
- if (err)
+ if (err) {
+ release_rxq_mbufs(rxq);
PMD_DRV_LOG(ERR, "Failed to switch RX queue %u on",
rx_queue_id);
- else
+ } else {
dev->data->rx_queue_state[rx_queue_id] =
RTE_ETH_QUEUE_STATE_STARTED;
+ }
return err;
}
--
2.30.1.windows.1
