Re: [dpdk-dev] [PATCH v1] net/mlx5: fix flow type for allmulti rules

[Nelio Laranjeiro <nelio.laranjeiro@6wind.com>]

On Tue, Dec 05, 2017 at 11:37:50AM +0200, Raslan Darawsheh wrote:
> Chnaged ibv_flow_attr type for allmulti rule to IBV_FLOW_ATTR_MC_DEFAULT
> instead of IBV_FLOW_ATTR_NORMAL, in case allmulti was enabled.
> 
> Fixes: 272733b5 ("net/mlx5: use flow to enable unicast traffic")
> 
> Signed-off-by: Raslan Darawsheh <rasland@mellanox.com>
> ---
>  drivers/net/mlx5/mlx5_flow.c | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
> index 1eda836..eaa53e2 100644
> --- a/drivers/net/mlx5/mlx5_flow.c
> +++ b/drivers/net/mlx5/mlx5_flow.c
> @@ -429,6 +429,7 @@ static const struct mlx5_flow_items mlx5_flow_items[] = {
>  /** Structure to pass to the conversion function. */
>  struct mlx5_flow_parse {
>  	uint32_t inner; /**< Set once VXLAN is encountered. */
> +	uint8_t allmulti:1; /** Set once allmulti dst MAC is encountered. */
>  	uint32_t create:1;
>  	/**< Whether resources should remain after a validate. */
>  	uint32_t drop:1; /**< Target is a drop queue. */
> @@ -1165,6 +1166,17 @@ priv_flow_convert(struct priv *priv,
>  			}
>  		}
>  	}
> +	if (parser->allmulti &&
> +	    parser->layer == HASH_RXQ_ETH) {
> +		for (i = 0; i != hash_rxq_init_n; ++i) {
> +			if (!parser->queue[i].ibv_attr)
> +				continue;
> +			if (parser->queue[i].ibv_attr->num_of_specs != 1)
> +				break;
> +			parser->queue[i].ibv_attr->type =
> +						IBV_FLOW_ATTR_MC_DEFAULT;
> +		}
> +	}
>  	return ret;
>  exit_enomem:
>  	for (i = 0; i != hash_rxq_init_n; ++i) {
> @@ -1262,6 +1274,7 @@ mlx5_flow_create_eth(const struct rte_flow_item *item,
>  		eth.val.ether_type &= eth.mask.ether_type;
>  	}
>  	mlx5_flow_create_copy(parser, &eth, eth_size);
> +	parser->allmulti = eth.val.dst_mac[0] & 1;
>  	return 0;
>  }
>  
> -- 
> 2.7.4

It also concerns DPDK 17.11, adding stable@dpdk.org

Acked-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>

-- 
Nélio Laranjeiro
6WIND