1 From 7a7fa2891df4ec4af0c34f3bbd203e1376e83951 Mon Sep 17 00:00:00 2001
2 From: Nelson Escobar <neescoba@cisco.com>
3 Date: Thu, 17 Mar 2016 15:49:58 -0700
4 Subject: [PATCH 15/22] enic: fix crash when allocating too many queues
6 Add checks to make sure we don't try to allocate more tx or rx queues
9 Fixes: fefed3d1e62c ("enic: new driver")
11 Signed-off-by: Nelson Escobar <neescoba@cisco.com>
12 Reviewed-by: John Daley <johndale@cisco.com>
14 drivers/net/enic/enic_ethdev.c | 14 ++++++++++++++
15 1 file changed, 14 insertions(+)
17 diff --git a/drivers/net/enic/enic_ethdev.c b/drivers/net/enic/enic_ethdev.c
18 index 6f2ada5..6c3c734 100644
19 --- a/drivers/net/enic/enic_ethdev.c
20 +++ b/drivers/net/enic/enic_ethdev.c
21 @@ -174,6 +174,13 @@ static int enicpmd_dev_tx_queue_setup(struct rte_eth_dev *eth_dev,
22 struct enic *enic = pmd_priv(eth_dev);
25 + if (queue_idx >= ENIC_WQ_MAX) {
27 + "Max number of TX queues exceeded. Max is %d\n",
32 eth_dev->data->tx_queues[queue_idx] = (void *)&enic->wq[queue_idx];
34 ret = enic_alloc_wq(enic, queue_idx, socket_id, nb_desc);
35 @@ -262,6 +269,13 @@ static int enicpmd_dev_rx_queue_setup(struct rte_eth_dev *eth_dev,
36 struct enic *enic = pmd_priv(eth_dev);
39 + if (queue_idx >= ENIC_RQ_MAX) {
41 + "Max number of RX queues exceeded. Max is %d\n",
46 eth_dev->data->rx_queues[queue_idx] = (void *)&enic->rq[queue_idx];
48 ret = enic_alloc_rq(enic, queue_idx, socket_id, mp, nb_desc);