[dpdk-stable] [dpdk-dev] [PATCH v2 1/2] net/mlx4: fix mem leak when a device configured repeatedly

[dpdk-stable] [dpdk-dev] [PATCH v2 1/2] net/mlx4: fix mem leak when a device configured repeatedly

[wangyunjian]

From: Yunjian Wang <wangyunjian@huawei.com>

Currently, configuring a mlx device, it will allocate its
own process private in mlx5_proc_priv_init() and only frees
it when closing the device. This will lead to a memory leak,
when a device is configured repeatedly.

For example:
for(...)
do
    rte_eth_dev_configure
    rte_eth_rx_queue_setup
    rte_eth_tx_queue_setup
    rte_eth_dev_start
    rte_eth_dev_stop
done

Fixes: 97d37d2c1f6b ("net/mlx4: remove device register remap")
Cc: stable@dpdk.org

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
---
 drivers/net/mlx4/mlx4.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c
index 7cd35cd3ca..c522157a0a 100644
--- a/drivers/net/mlx4/mlx4.c
+++ b/drivers/net/mlx4/mlx4.c
@@ -201,6 +201,7 @@ mlx4_proc_priv_init(struct rte_eth_dev *dev)
 	struct mlx4_proc_priv *ppriv;
 	size_t ppriv_size;
 
+	mlx4_proc_priv_uninit(dev);
 	/*
 	 * UAR register table follows the process private structure. BlueFlame
 	 * registers for Tx queues are stored in the table.
-- 
2.23.0

[dpdk-stable] [dpdk-dev] [PATCH v2 2/2] net/mlx5: fix mem leak when a device configured repeatedly

[wangyunjian]

From: Yunjian Wang <wangyunjian@huawei.com>

Currently, configuring a mlx device, it will allocate its
own process private in mlx5_proc_priv_init() and only frees
it when closing the device. This will lead to a memory leak,
when a device is configured repeatedly.

For example:
for(...)
do
    rte_eth_dev_configure
    rte_eth_rx_queue_setup
    rte_eth_tx_queue_setup
    rte_eth_dev_start
    rte_eth_dev_stop
done

Fixes: 120dc4a7dcd3 ("net/mlx5: remove device register remap")
Cc: stable@dpdk.org

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
---
 drivers/net/mlx5/mlx5.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index 35f91e965e..cf1815cb74 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -1455,6 +1455,7 @@ mlx5_proc_priv_init(struct rte_eth_dev *dev)
 	struct mlx5_proc_priv *ppriv;
 	size_t ppriv_size;
 
+	mlx5_proc_priv_uninit(dev);
 	/*
 	 * UAR register table follows the process private structure. BlueFlame
 	 * registers for Tx queues are stored in the table.
-- 
2.23.0

Re: [dpdk-stable] [dpdk-dev] [PATCH v2 1/2] net/mlx4: fix mem leak when a device configured repeatedly

[Slava Ovsiienko]

> -----Original Message-----
> From: wangyunjian <wangyunjian@huawei.com>
> Sent: Thursday, May 13, 2021 6:39
> To: dev@dpdk.org
> Cc: Matan Azrad <matan@nvidia.com>; Shahaf Shuler
> <shahafs@nvidia.com>; Slava Ovsiienko <viacheslavo@nvidia.com>;
> dingxiaoxiong@huawei.com; Yunjian Wang <wangyunjian@huawei.com>;
> stable@dpdk.org
> Subject: [dpdk-dev] [PATCH v2 1/2] net/mlx4: fix mem leak when a device
> configured repeatedly
> 
> From: Yunjian Wang <wangyunjian@huawei.com>
> 
> Currently, configuring a mlx device, it will allocate its own process private in
> mlx5_proc_priv_init() and only frees it when closing the device. This will lead
> to a memory leak, when a device is configured repeatedly.
> 
> For example:
> for(...)
> do
>     rte_eth_dev_configure
>     rte_eth_rx_queue_setup
>     rte_eth_tx_queue_setup
>     rte_eth_dev_start
>     rte_eth_dev_stop
> done
> 
> Fixes: 97d37d2c1f6b ("net/mlx4: remove device register remap")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>

Re: [dpdk-stable] [dpdk-dev] [PATCH v2 2/2] net/mlx5: fix mem leak when a device configured repeatedly

[Slava Ovsiienko]

> -----Original Message-----
> From: wangyunjian <wangyunjian@huawei.com>
> Sent: Thursday, May 13, 2021 6:40
> To: dev@dpdk.org
> Cc: Matan Azrad <matan@nvidia.com>; Shahaf Shuler
> <shahafs@nvidia.com>; Slava Ovsiienko <viacheslavo@nvidia.com>;
> dingxiaoxiong@huawei.com; Yunjian Wang <wangyunjian@huawei.com>;
> stable@dpdk.org
> Subject: [dpdk-dev] [PATCH v2 2/2] net/mlx5: fix mem leak when a device
> configured repeatedly
> 
> From: Yunjian Wang <wangyunjian@huawei.com>
> 
> Currently, configuring a mlx device, it will allocate its own process private in
> mlx5_proc_priv_init() and only frees it when closing the device. This will lead
> to a memory leak, when a device is configured repeatedly.
> 
> For example:
> for(...)
> do
>     rte_eth_dev_configure
>     rte_eth_rx_queue_setup
>     rte_eth_tx_queue_setup
>     rte_eth_dev_start
>     rte_eth_dev_stop
> done
> 
> Fixes: 120dc4a7dcd3 ("net/mlx5: remove device register remap")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>