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To: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>, dev@dpdk.org
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Cc: Adrien Mazarguil <adrien.mazarguil@6wind.com>
From: Ferruh Yigit <ferruh.yigit@intel.com>
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Date: Fri, 23 Dec 2016 12:21:10 +0000
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Subject: Re: [dpdk-dev] [PATCH v3 3/4] net/mlx5: add rte_flow rule creation
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On 12/21/2016 3:19 PM, Nelio Laranjeiro wrote:
> Convert Ethernet, IPv4, IPv6, TCP, UDP layers into ibv_flow and create
> those rules when after validation (i.e. NIC supports the rule).
> 
> VLAN is still not supported in this commit.
> 
> Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>

<...>

> +static struct rte_flow *
> +priv_flow_create(struct priv *priv,
> +		 const struct rte_flow_attr *attr,
> +		 const struct rte_flow_item items[],
> +		 const struct rte_flow_action actions[],
> +		 struct rte_flow_error *error)
> +{
> +	struct rte_flow *rte_flow = NULL;

Unnecessary assignment.

<...>

> +	action = (struct action) {
> +		.queue = -1,
> +		.drop = 0,
> +	};
> +	for (; actions->type != RTE_FLOW_ACTION_TYPE_END; ++actions) {
> +		if (actions->type == RTE_FLOW_ACTION_TYPE_VOID) {
> +			continue;
> +		} else if (actions->type == RTE_FLOW_ACTION_TYPE_QUEUE) {
> +			action.queue = ((const struct rte_flow_action_queue *)
> +					actions->conf)->index;
> +		} else if (actions->type == RTE_FLOW_ACTION_TYPE_DROP) {
> +			action.drop = 1;
> +		} else {
> +			rte_flow_error_set(error, ENOTSUP,
> +					   RTE_FLOW_ERROR_TYPE_ACTION,
> +					   actions, "unsupported action");
> +			goto exit;
> +		}
> +	}
> +	if (action.queue >= 0) {
> +		queue = action.queue;
> +	} else if (action.drop) {
> +		queue = MLX5_FLOW_DROP_QUEUE;
> +	} else {

Not really so important, but as a note, ACTION_TYPE_VOID hits here. It
pass from validation, but gives error in creation.

> +		rte_flow_error_set(error, ENOTSUP,
> +				   RTE_FLOW_ERROR_TYPE_ACTION,
> +				   actions,
> +				   "no possible action found");
> +		goto exit;
> +	}

<...>