Re: [dpdk-dev] [PATCH] net/mlx5: fix validation of VLAN pcp item

[Slava Ovsiienko <viacheslavo@mellanox.com>]

> -----Original Message-----
> From: Dekel Peled <dekelp@mellanox.com>
> Sent: Monday, July 29, 2019 18:15
> To: Yongseok Koh <yskoh@mellanox.com>; Slava Ovsiienko
> <viacheslavo@mellanox.com>; Shahaf Shuler <shahafs@mellanox.com>
> Cc: Ori Kam <orika@mellanox.com>; dev@dpdk.org; stable@dpdk.org
> Subject: [PATCH] net/mlx5: fix validation of VLAN pcp item
> 
> Function mlx5_flow_validate_item_vlan() validates the user setting is
> supported by NIC, using a mask with TCI mask 0x0fff.
> This check will reject a flow rule specifying a vlan pcp item.
> 
> This patch updates mlx5_flow_validate_item_vlan() to use mask 0xffff, so
> flow rules with vlan pcp item are accepted.
> 
> Fixes: 23c1d42c7138 ("net/mlx5: split flow validation to dedicated function")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Dekel Peled <dekelp@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>

> ---
>  drivers/net/mlx5/mlx5_flow.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
> index 3d2d5fc..ec25fde 100644
> --- a/drivers/net/mlx5/mlx5_flow.c
> +++ b/drivers/net/mlx5/mlx5_flow.c
> @@ -1218,8 +1218,8 @@ uint32_t mlx5_flow_adjust_priority(struct
> rte_eth_dev *dev, int32_t priority,
>  	const struct rte_flow_item_vlan *spec = item->spec;
>  	const struct rte_flow_item_vlan *mask = item->mask;
>  	const struct rte_flow_item_vlan nic_mask = {
> -		.tci = RTE_BE16(0x0fff),
> -		.inner_type = RTE_BE16(0xffff),
> +		.tci = RTE_BE16(UINT16_MAX),
> +		.inner_type = RTE_BE16(UINT16_MAX),
>  	};
>  	uint16_t vlan_tag = 0;
>  	const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
> --
> 1.8.3.1