The enic code called from rte_eth_dev_set_mtu() was assuming that the
Rx queues are already set up via a call to rte_eth_tx_queue_setup().
OVS calls rte_eth_dev_set_mtu() before rte_eth_rx_queue_setup() and
a null pointer was dereferenced.
Fixes: c3e09182bcd6 ("net/enic: support scatter Rx in MTU update")
Cc: sta...@dpdk.org
Signed-off-by: John Daley <johnd...@cisco.com>
Reviewed-by: Hyong Youb Kim <hyon...@cisco.com>
---
drivers/net/enic/enic_main.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index f01a77c0a..f39dfbe32 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -1444,6 +1444,8 @@ int enic_set_mtu(struct enic *enic, uint16_t new_mtu)
/* free and reallocate RQs with the new MTU */
for (rq_idx = 0; rq_idx < enic->rq_count; rq_idx++) {
rq = &enic->rq[enic_rte_rq_idx_to_sop_idx(rq_idx)];
+ if (!rq->in_use)
+ continue;
enic_free_rq(rq);
rc = enic_alloc_rq(enic, rq_idx, rq->socket_id, rq->mp,
--
2.16.2
