Re: [dpdk-stable] [PATCH] net/mlx5: fix validation of jump action

[Slava Ovsiienko <viacheslavo@mellanox.com>]

> -----Original Message-----
> From: Dekel Peled <dekelp@mellanox.com>
> Sent: Thursday, August 15, 2019 12:27
> 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 jump action
> 
> This patch updates the validation function of jump action.
> It adds check of conflicting fate actions in flow rule.
> It also removes check of action->type which is not needed.
> 
> Fixes: 684b9a1b1f5c ("net/mlx5: support jump action")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Dekel Peled <dekelp@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>

> ---
>  drivers/net/mlx5/mlx5_flow_dv.c | 14 ++++++++++++--
>  1 file changed, 12 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/mlx5/mlx5_flow_dv.c
> b/drivers/net/mlx5/mlx5_flow_dv.c index 21faa98..374dbae 100644
> --- a/drivers/net/mlx5/mlx5_flow_dv.c
> +++ b/drivers/net/mlx5/mlx5_flow_dv.c
> @@ -1951,7 +1951,9 @@ struct field_modify_info modify_tcp[] = {
>   * Validate jump action.
>   *
>   * @param[in] action
> - *   Pointer to the modify action.
> + *   Pointer to the jump action.
> + * @param[in] action_flags
> + *   Holds the actions detected until now.
>   * @param[in] group
>   *   The group of the current flow.
>   * @param[out] error
> @@ -1962,10 +1964,17 @@ struct field_modify_info modify_tcp[] = {
>   */
>  static int
>  flow_dv_validate_action_jump(const struct rte_flow_action *action,
> +			     uint64_t action_flags,
>  			     uint32_t group,
>  			     struct rte_flow_error *error)
>  {
> -	if (action->type != RTE_FLOW_ACTION_TYPE_JUMP && !action-
> >conf)
> +	if (action_flags & (MLX5_FLOW_FATE_ACTIONS |
> +			    MLX5_FLOW_FATE_ESWITCH_ACTIONS))
> +		return rte_flow_error_set(error, EINVAL,
> +					  RTE_FLOW_ERROR_TYPE_ACTION,
> NULL,
> +					  "can't have 2 fate actions in"
> +					  " same flow");
> +	if (!action->conf)
>  		return rte_flow_error_set(error, EINVAL,
> 
> RTE_FLOW_ERROR_TYPE_ACTION_CONF,
>  					  NULL, "action configuration not
> set"); @@ -3220,6 +3229,7 @@ struct field_modify_info modify_tcp[] = {
>  			break;
>  		case RTE_FLOW_ACTION_TYPE_JUMP:
>  			ret = flow_dv_validate_action_jump(actions,
> +							   action_flags,
>  							   attr->group, error);
>  			if (ret)
>  				return ret;
> --
> 1.8.3.1