Re: [dpdk-dev] [PATCH] net/mlx5: fix setting of item flags bitmap

[Slava Ovsiienko <viacheslavo@mellanox.com>]

> -----Original Message-----
> From: Dekel Peled <dekelp@mellanox.com>
> Sent: Thursday, July 18, 2019 22:42
> To: Yongseok Koh <yskoh@mellanox.com>; Slava Ovsiienko
> <viacheslavo@mellanox.com>; Shahaf Shuler <shahafs@mellanox.com>
> Cc: Jack Min <jackmin@mellanox.com>; Ori Kam <orika@mellanox.com>;
> dev@dpdk.org
> Subject: [PATCH] net/mlx5: fix setting of item flags bitmap
> 
> In functions flow_dv_translate() and  flow_dv_validate(), the flow items are
> scanned and each item is marked in item_flags bitmap.
> The code handling some of the items was ported from another project,
> where items are marked in a slightley different manner.
> 
> This patch fixes the setting of items in bitmap, adapting it to the required
> manner.
> 
> Fixes: d53aa89aea91 ("net/mlx5: support matching on ICMP/ICMP6")
> Fixes: 1242041c5601 ("net/mlx5: match GRE key and present bits")
> Fixes: 2e4c987aad91 ("net/mlx5: validate Direct Rule E-Switch")
> 
> 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, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/net/mlx5/mlx5_flow_dv.c
> b/drivers/net/mlx5/mlx5_flow_dv.c index 45cd140..7240d3b 100644
> --- a/drivers/net/mlx5/mlx5_flow_dv.c
> +++ b/drivers/net/mlx5/mlx5_flow_dv.c
> @@ -2883,7 +2883,7 @@ struct field_modify_info modify_tcp[] = {
>  					(dev, items, attr, item_flags, error);
>  			if (ret < 0)
>  				return ret;
> -			last_item |= MLX5_FLOW_ITEM_PORT_ID;
> +			last_item = MLX5_FLOW_ITEM_PORT_ID;
>  			break;
>  		case RTE_FLOW_ITEM_TYPE_ETH:
>  			ret = mlx5_flow_validate_item_eth(items,
> item_flags, @@ -2979,7 +2979,7 @@ struct field_modify_info modify_tcp[]
> = {
>  				(items, item_flags, gre_item, error);
>  			if (ret < 0)
>  				return ret;
> -			item_flags |= MLX5_FLOW_LAYER_GRE_KEY;
> +			last_item = MLX5_FLOW_LAYER_GRE_KEY;
>  			break;
>  		case RTE_FLOW_ITEM_TYPE_VXLAN:
>  			ret = mlx5_flow_validate_item_vxlan(items,
> item_flags, @@ -3017,7 +3017,7 @@ struct field_modify_info modify_tcp[]
> = {
>  							   error);
>  			if (ret < 0)
>  				return ret;
> -			item_flags |= MLX5_FLOW_LAYER_ICMP;
> +			last_item = MLX5_FLOW_LAYER_ICMP;
>  			break;
>  		case RTE_FLOW_ITEM_TYPE_ICMP6:
>  			ret = mlx5_flow_validate_item_icmp6(items,
> item_flags, @@ -3025,7 +3025,7 @@ struct field_modify_info modify_tcp[]
> = {
>  							    error);
>  			if (ret < 0)
>  				return ret;
> -			item_flags |= MLX5_FLOW_LAYER_ICMP6;
> +			last_item = MLX5_FLOW_LAYER_ICMP6;
>  			break;
>  		default:
>  			return rte_flow_error_set(error, ENOTSUP, @@ -
> 5043,7 +5043,7 @@ struct field_modify_info modify_tcp[] = {
>  		case RTE_FLOW_ITEM_TYPE_GRE_KEY:
>  			flow_dv_translate_item_gre_key(match_mask,
>  						       match_value, items);
> -			item_flags |= MLX5_FLOW_LAYER_GRE_KEY;
> +			last_item = MLX5_FLOW_LAYER_GRE_KEY;
>  			break;
>  		case RTE_FLOW_ITEM_TYPE_NVGRE:
>  			flow_dv_translate_item_nvgre(match_mask,
> match_value, @@ -5073,12 +5073,12 @@ struct field_modify_info
> modify_tcp[] = {
>  		case RTE_FLOW_ITEM_TYPE_ICMP:
>  			flow_dv_translate_item_icmp(match_mask,
> match_value,
>  						    items, tunnel);
> -			item_flags |= MLX5_FLOW_LAYER_ICMP;
> +			last_item = MLX5_FLOW_LAYER_ICMP;
>  			break;
>  		case RTE_FLOW_ITEM_TYPE_ICMP6:
>  			flow_dv_translate_item_icmp6(match_mask,
> match_value,
>  						      items, tunnel);
> -			item_flags |= MLX5_FLOW_LAYER_ICMP6;
> +			last_item = MLX5_FLOW_LAYER_ICMP6;
>  			break;
>  		default:
>  			break;
> --
> 1.8.3.1