[1/3] net/mlx5: avoid crash when setting hairpin queues
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Commit Message
From: Tonghao Zhang <xiangxia.m.yue@gmail.com>
If configuring the number of tx/rx queue with rte_eth_dev_configure
to nr_queues + hairpin_nr_queues, and setting tx/rx queues to
nr_queues with rte_eth_tx/rx_queue_setup. But not configuring the
hairpin queues via rte_eth_tx/rx_hairpin_queue_setup.
When starting the netdev, there is a crash because of NULL accessing.
Fixes: cf5516696d77 ("ethdev: add hairpin queue")
Cc: Ori Kam <orika@mellanox.com>
Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
---
drivers/net/mlx5/mlx5_ethdev.c | 2 +-
drivers/net/mlx5/mlx5_trigger.c | 5 ++++-
2 files changed, 5 insertions(+), 2 deletions(-)
Comments
> -----Original Message-----
> From: xiangxia.m.yue@gmail.com <xiangxia.m.yue@gmail.com>
> Sent: Wednesday, November 27, 2019 4:19 PM
> To: dev@dpdk.org
> Cc: Tonghao Zhang <xiangxia.m.yue@gmail.com>; Ori Kam
> <orika@mellanox.com>
> Subject: [PATCH dpdk-dev 1/3] net/mlx5: avoid crash when setting hairpin
> queues
>
> From: Tonghao Zhang <xiangxia.m.yue@gmail.com>
>
> If configuring the number of tx/rx queue with rte_eth_dev_configure
> to nr_queues + hairpin_nr_queues, and setting tx/rx queues to
> nr_queues with rte_eth_tx/rx_queue_setup. But not configuring the
> hairpin queues via rte_eth_tx/rx_hairpin_queue_setup.
>
> When starting the netdev, there is a crash because of NULL accessing.
>
> Fixes: cf5516696d77 ("ethdev: add hairpin queue")
> Cc: Ori Kam <orika@mellanox.com>
> Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
> ---
> drivers/net/mlx5/mlx5_ethdev.c | 2 +-
> drivers/net/mlx5/mlx5_trigger.c | 5 ++++-
> 2 files changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/mlx5/mlx5_ethdev.c
> b/drivers/net/mlx5/mlx5_ethdev.c
> index 1d6c084119ec..0076d05b00cc 100644
> --- a/drivers/net/mlx5/mlx5_ethdev.c
> +++ b/drivers/net/mlx5/mlx5_ethdev.c
> @@ -476,7 +476,7 @@ mlx5_dev_configure_rss_reta(struct rte_eth_dev
> *dev)
>
> rxq_data = (*priv->rxqs)[i];
> rxq_ctrl = container_of(rxq_data, struct mlx5_rxq_ctrl, rxq);
> - if (rxq_ctrl->type == MLX5_RXQ_TYPE_STANDARD)
> + if (rxq_ctrl && rxq_ctrl->type ==
> MLX5_RXQ_TYPE_STANDARD)
> rss_queue_arr[j++] = i;
> }
> rss_queue_n = j;
> diff --git a/drivers/net/mlx5/mlx5_trigger.c
> b/drivers/net/mlx5/mlx5_trigger.c
> index cafab25c67e7..ab6937ab10d1 100644
> --- a/drivers/net/mlx5/mlx5_trigger.c
> +++ b/drivers/net/mlx5/mlx5_trigger.c
> @@ -106,9 +106,12 @@ mlx5_rxq_start(struct rte_eth_dev *dev)
> unsigned int i;
> int ret = 0;
> enum mlx5_rxq_obj_type obj_type = MLX5_RXQ_OBJ_TYPE_IBV;
> + struct mlx5_rxq_data *rxq = NULL;
>
> for (i = 0; i < priv->rxqs_n; ++i) {
> - if ((*priv->rxqs)[i]->lro) {
> + rxq = (*priv->rxqs)[i];
> +
> + if (rxq && rxq->lro) {
> obj_type = MLX5_RXQ_OBJ_TYPE_DEVX_RQ;
> break;
> }
> --
> 2.23.0
Nice catch,
Acked-by: Ori Kam <orika@mellanox.com>
Thanks,
Ori
Hi,
> -----Original Message-----
> From: dev <dev-bounces@dpdk.org> On Behalf Of
> xiangxia.m.yue@gmail.com
> Sent: Wednesday, November 27, 2019 4:19 PM
> To: dev@dpdk.org
> Cc: Tonghao Zhang <xiangxia.m.yue@gmail.com>; Ori Kam
> <orika@mellanox.com>
> Subject: [dpdk-dev] [PATCH dpdk-dev 1/3] net/mlx5: avoid crash when
> setting hairpin queues
>
> From: Tonghao Zhang <xiangxia.m.yue@gmail.com>
>
> If configuring the number of tx/rx queue with rte_eth_dev_configure
> to nr_queues + hairpin_nr_queues, and setting tx/rx queues to
> nr_queues with rte_eth_tx/rx_queue_setup. But not configuring the
> hairpin queues via rte_eth_tx/rx_hairpin_queue_setup.
>
> When starting the netdev, there is a crash because of NULL accessing.
>
> Fixes: cf5516696d77 ("ethdev: add hairpin queue")
> Cc: Ori Kam <orika@mellanox.com>
> Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
> ---
> drivers/net/mlx5/mlx5_ethdev.c | 2 +-
> drivers/net/mlx5/mlx5_trigger.c | 5 ++++-
> 2 files changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/mlx5/mlx5_ethdev.c
> b/drivers/net/mlx5/mlx5_ethdev.c
> index 1d6c084119ec..0076d05b00cc 100644
> --- a/drivers/net/mlx5/mlx5_ethdev.c
> +++ b/drivers/net/mlx5/mlx5_ethdev.c
> @@ -476,7 +476,7 @@ mlx5_dev_configure_rss_reta(struct rte_eth_dev
> *dev)
>
> rxq_data = (*priv->rxqs)[i];
> rxq_ctrl = container_of(rxq_data, struct mlx5_rxq_ctrl, rxq);
> - if (rxq_ctrl->type == MLX5_RXQ_TYPE_STANDARD)
> + if (rxq_ctrl && rxq_ctrl->type ==
> MLX5_RXQ_TYPE_STANDARD)
> rss_queue_arr[j++] = i;
> }
> rss_queue_n = j;
> diff --git a/drivers/net/mlx5/mlx5_trigger.c
> b/drivers/net/mlx5/mlx5_trigger.c
> index cafab25c67e7..ab6937ab10d1 100644
> --- a/drivers/net/mlx5/mlx5_trigger.c
> +++ b/drivers/net/mlx5/mlx5_trigger.c
> @@ -106,9 +106,12 @@ mlx5_rxq_start(struct rte_eth_dev *dev)
> unsigned int i;
> int ret = 0;
> enum mlx5_rxq_obj_type obj_type = MLX5_RXQ_OBJ_TYPE_IBV;
> + struct mlx5_rxq_data *rxq = NULL;
>
> for (i = 0; i < priv->rxqs_n; ++i) {
> - if ((*priv->rxqs)[i]->lro) {
> + rxq = (*priv->rxqs)[i];
> +
> + if (rxq && rxq->lro) {
> obj_type = MLX5_RXQ_OBJ_TYPE_DEVX_RQ;
> break;
> }
> --
> 2.23.0
Patch applied to next-net-mlx,
Kindest regards,
Raslan Darawsheh
Please be noted that only the first two patches where applied from this series,
The last patch is not needed anymore.
Also Added Cc: stable@dpdk.org to the commits.
Kindest regards,
Raslan Darawsheh
> -----Original Message-----
> From: dev <dev-bounces@dpdk.org> On Behalf Of Raslan Darawsheh
> Sent: Sunday, December 15, 2019 10:55 AM
> To: xiangxia.m.yue@gmail.com; dev@dpdk.org
> Cc: Ori Kam <orika@mellanox.com>
> Subject: Re: [dpdk-dev] [PATCH dpdk-dev 1/3] net/mlx5: avoid crash when
> setting hairpin queues
>
> Hi,
>
> > -----Original Message-----
> > From: dev <dev-bounces@dpdk.org> On Behalf Of
> > xiangxia.m.yue@gmail.com
> > Sent: Wednesday, November 27, 2019 4:19 PM
> > To: dev@dpdk.org
> > Cc: Tonghao Zhang <xiangxia.m.yue@gmail.com>; Ori Kam
> > <orika@mellanox.com>
> > Subject: [dpdk-dev] [PATCH dpdk-dev 1/3] net/mlx5: avoid crash when
> > setting hairpin queues
> >
> > From: Tonghao Zhang <xiangxia.m.yue@gmail.com>
> >
> > If configuring the number of tx/rx queue with rte_eth_dev_configure
> > to nr_queues + hairpin_nr_queues, and setting tx/rx queues to
> > nr_queues with rte_eth_tx/rx_queue_setup. But not configuring the
> > hairpin queues via rte_eth_tx/rx_hairpin_queue_setup.
> >
> > When starting the netdev, there is a crash because of NULL accessing.
> >
> > Fixes: cf5516696d77 ("ethdev: add hairpin queue")
> > Cc: Ori Kam <orika@mellanox.com>
> > Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
> > ---
> > drivers/net/mlx5/mlx5_ethdev.c | 2 +-
> > drivers/net/mlx5/mlx5_trigger.c | 5 ++++-
> > 2 files changed, 5 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/net/mlx5/mlx5_ethdev.c
> > b/drivers/net/mlx5/mlx5_ethdev.c
> > index 1d6c084119ec..0076d05b00cc 100644
> > --- a/drivers/net/mlx5/mlx5_ethdev.c
> > +++ b/drivers/net/mlx5/mlx5_ethdev.c
> > @@ -476,7 +476,7 @@ mlx5_dev_configure_rss_reta(struct rte_eth_dev
> > *dev)
> >
> > rxq_data = (*priv->rxqs)[i];
> > rxq_ctrl = container_of(rxq_data, struct mlx5_rxq_ctrl, rxq);
> > - if (rxq_ctrl->type == MLX5_RXQ_TYPE_STANDARD)
> > + if (rxq_ctrl && rxq_ctrl->type ==
> > MLX5_RXQ_TYPE_STANDARD)
> > rss_queue_arr[j++] = i;
> > }
> > rss_queue_n = j;
> > diff --git a/drivers/net/mlx5/mlx5_trigger.c
> > b/drivers/net/mlx5/mlx5_trigger.c
> > index cafab25c67e7..ab6937ab10d1 100644
> > --- a/drivers/net/mlx5/mlx5_trigger.c
> > +++ b/drivers/net/mlx5/mlx5_trigger.c
> > @@ -106,9 +106,12 @@ mlx5_rxq_start(struct rte_eth_dev *dev)
> > unsigned int i;
> > int ret = 0;
> > enum mlx5_rxq_obj_type obj_type = MLX5_RXQ_OBJ_TYPE_IBV;
> > + struct mlx5_rxq_data *rxq = NULL;
> >
> > for (i = 0; i < priv->rxqs_n; ++i) {
> > - if ((*priv->rxqs)[i]->lro) {
> > + rxq = (*priv->rxqs)[i];
> > +
> > + if (rxq && rxq->lro) {
> > obj_type = MLX5_RXQ_OBJ_TYPE_DEVX_RQ;
> > break;
> > }
> > --
> > 2.23.0
>
> Patch applied to next-net-mlx,
>
> Kindest regards,
> Raslan Darawsheh
@@ -476,7 +476,7 @@ mlx5_dev_configure_rss_reta(struct rte_eth_dev *dev)
rxq_data = (*priv->rxqs)[i];
rxq_ctrl = container_of(rxq_data, struct mlx5_rxq_ctrl, rxq);
- if (rxq_ctrl->type == MLX5_RXQ_TYPE_STANDARD)
+ if (rxq_ctrl && rxq_ctrl->type == MLX5_RXQ_TYPE_STANDARD)
rss_queue_arr[j++] = i;
}
rss_queue_n = j;
@@ -106,9 +106,12 @@ mlx5_rxq_start(struct rte_eth_dev *dev)
unsigned int i;
int ret = 0;
enum mlx5_rxq_obj_type obj_type = MLX5_RXQ_OBJ_TYPE_IBV;
+ struct mlx5_rxq_data *rxq = NULL;
for (i = 0; i < priv->rxqs_n; ++i) {
- if ((*priv->rxqs)[i]->lro) {
+ rxq = (*priv->rxqs)[i];
+
+ if (rxq && rxq->lro) {
obj_type = MLX5_RXQ_OBJ_TYPE_DEVX_RQ;
break;
}