From: Rich Lane <rich.lane@bigswitch.com>
To: dev@dpdk.org
Cc: Helin Zhang <helin.zhang@intel.com>, Jingjing Wu <jingjing.wu@intel.com>
Subject: [dpdk-dev] [PATCH] net/i40e: fix null pointer dereferences when using VMDQ+RSS
Date: Tue, 2 Aug 2016 12:34:56 -0700 [thread overview]
Message-ID: <1470166496-70610-1-git-send-email-rich.lane@bigswitch.com> (raw)
When using VMDQ+RSS, the queue ids used by the application are not
contiguous (see i40e_pf_config_rss). Most of the driver already handled
this, but there were a few cases where it assumed all configured queues
had been setup.
Fixes: 4861cde46116 ("i40e: new poll mode driver")
Fixes: 6b4537128394 ("i40e: free queue memory when closing")
Fixes: 8e109464c022 ("i40e: allow vector Rx and Tx usage")
Signed-off-by: Rich Lane <rich.lane@bigswitch.com>
---
drivers/net/i40e/i40e_rxtx.c | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c
index 554d167..0556a4d 100644
--- a/drivers/net/i40e/i40e_rxtx.c
+++ b/drivers/net/i40e/i40e_rxtx.c
@@ -2948,11 +2948,15 @@ i40e_dev_clear_queues(struct rte_eth_dev *dev)
PMD_INIT_FUNC_TRACE();
for (i = 0; i < dev->data->nb_tx_queues; i++) {
+ if (!dev->data->tx_queues[i])
+ continue;
i40e_tx_queue_release_mbufs(dev->data->tx_queues[i]);
i40e_reset_tx_queue(dev->data->tx_queues[i]);
}
for (i = 0; i < dev->data->nb_rx_queues; i++) {
+ if (!dev->data->rx_queues[i])
+ continue;
i40e_rx_queue_release_mbufs(dev->data->rx_queues[i]);
i40e_reset_rx_queue(dev->data->rx_queues[i]);
}
@@ -2966,12 +2970,16 @@ i40e_dev_free_queues(struct rte_eth_dev *dev)
PMD_INIT_FUNC_TRACE();
for (i = 0; i < dev->data->nb_rx_queues; i++) {
+ if (!dev->data->rx_queues[i])
+ continue;
i40e_dev_rx_queue_release(dev->data->rx_queues[i]);
dev->data->rx_queues[i] = NULL;
}
dev->data->nb_rx_queues = 0;
for (i = 0; i < dev->data->nb_tx_queues; i++) {
+ if (!dev->data->tx_queues[i])
+ continue;
i40e_dev_tx_queue_release(dev->data->tx_queues[i]);
dev->data->tx_queues[i] = NULL;
}
@@ -3154,7 +3162,7 @@ i40e_set_rx_function(struct rte_eth_dev *dev)
struct i40e_rx_queue *rxq =
dev->data->rx_queues[i];
- if (i40e_rxq_vec_setup(rxq)) {
+ if (rxq && i40e_rxq_vec_setup(rxq)) {
ad->rx_vec_allowed = false;
break;
}
@@ -3216,7 +3224,8 @@ i40e_set_rx_function(struct rte_eth_dev *dev)
for (i = 0; i < dev->data->nb_rx_queues; i++) {
struct i40e_rx_queue *rxq = dev->data->rx_queues[i];
- rxq->rx_using_sse = rx_using_sse;
+ if (rxq)
+ rxq->rx_using_sse = rx_using_sse;
}
}
}
@@ -3255,7 +3264,7 @@ i40e_set_tx_function(struct rte_eth_dev *dev)
struct i40e_tx_queue *txq =
dev->data->tx_queues[i];
- if (i40e_txq_vec_setup(txq)) {
+ if (txq && i40e_txq_vec_setup(txq)) {
ad->tx_vec_allowed = false;
break;
}
--
1.9.1
next reply other threads:[~2016-08-02 19:35 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-02 19:34 Rich Lane [this message]
2016-09-14 14:00 ` Ferruh Yigit
2016-09-22 8:20 ` Wu, Jingjing
2016-09-23 10:56 ` Bruce Richardson
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