[dpdk-dev] [PATCH v3] net/mlx5: check the reg available for metadata action

[Raslan Darawsheh]

Hi,

> -----Original Message-----
> From: Viacheslav Ovsiienko <viacheslavo at nvidia.com>
> Sent: Friday, November 20, 2020 4:48 PM
> To: dev at dpdk.org
> Cc: Raslan Darawsheh <rasland at nvidia.com>; Matan Azrad
> <matan at nvidia.com>; Ori Kam <orika at nvidia.com>; NBU-Contact-Thomas
> Monjalon <thomas at monjalon.net>; xiangxia.m.yue at gmail.com;
> stable at dpdk.org
> Subject: [PATCH v3] net/mlx5: check the reg available for metadata action
> 
> From: Tonghao Zhang <xiangxia.m.yue at gmail.com>
> 
> If user don't set the dv_xmeta_en to 1 or 2,
> in the flow_dv_convert_action_set_meta function:
> 
> - flow_dv_get_metadata_reg may return the REG_NONE,
>   when MLX5_METADATA_FDB enabled for metadata set action.
> 
> - reg_to_field(REG_NONE) returns MLX5_MODI_OUT_NONE,
>   that is invalid and rdma-core fails.
> 
> The rdma-core calltrace:
>     dr_action_create_modify_action
>     dr_actions_convert_modify_header
>     dr_action_modify_sw_to_hw
>     dr_action_modify_sw_to_hw_set
>     dr_ste_get_modify_hdr_hw_field
> 
> Fixes: fcc8d2f716fd ("net/mlx5: extend flow metadata support")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Tonghao Zhang <xiangxia.m.yue at gmail.com>
> Signed-off-by: Viacheslav Ovsiienko <viacheslavo at nvidia.com>
> ---
Patch applied to next-net-mlx,

Kindest regards,
Raslan Darawsheh