From 9944ab8a13f8dbec6db16f07603210b32c2738ef Mon Sep 17 00:00:00 2001 From: Nelio Laranjeiro Date: Thu, 12 Jul 2018 11:30:51 +0200 Subject: [PATCH] net/mlx5: add flow queue action Signed-off-by: Nelio Laranjeiro Acked-by: Yongseok Koh --- drivers/net/mlx5/mlx5_flow.c | 97 ++++++++++++++++++++++++++++++++---- 1 file changed, 86 insertions(+), 11 deletions(-) diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c index 036a8d4401..6041a4573b 100644 --- a/drivers/net/mlx5/mlx5_flow.c +++ b/drivers/net/mlx5/mlx5_flow.c @@ -50,6 +50,7 @@ extern const struct eth_dev_ops mlx5_dev_ops_isolate; /* Actions that modify the fate of matching traffic. */ #define MLX5_FLOW_FATE_DROP (1u << 0) +#define MLX5_FLOW_FATE_QUEUE (1u << 1) /** Handles information leading to a drop fate. */ struct mlx5_flow_verbs { @@ -71,7 +72,8 @@ struct rte_flow { /**< Bit-fields of present layers see MLX5_FLOW_LAYER_*. */ uint32_t fate; /**< Bit-fields of present fate see MLX5_FLOW_FATE_*. */ - struct mlx5_flow_verbs verbs; /* Verbs drop flow. */ + struct mlx5_flow_verbs verbs; /* Verbs flow. */ + uint16_t queue; /**< Destination queue to redirect traffic to. */ }; static const struct rte_flow_ops mlx5_flow_ops = { @@ -492,6 +494,52 @@ mlx5_flow_action_drop(const struct rte_flow_action *action, return size; } +/** + * Convert the @p action into @p flow after ensuring the NIC will understand + * and process it correctly. + * + * @param[in] dev + * Pointer to Ethernet device structure. + * @param[in] action + * Action configuration. + * @param[in, out] flow + * Pointer to flow structure. + * @param[out] error + * Pointer to error structure. + * + * @return + * 0 on success, a negative errno value otherwise and rte_errno is set. + */ +static int +mlx5_flow_action_queue(struct rte_eth_dev *dev, + const struct rte_flow_action *action, + struct rte_flow *flow, + struct rte_flow_error *error) +{ + struct priv *priv = dev->data->dev_private; + const struct rte_flow_action_queue *queue = action->conf; + + if (flow->fate) + return rte_flow_error_set(error, ENOTSUP, + RTE_FLOW_ERROR_TYPE_ACTION, + action, + "multiple fate actions are not" + " supported"); + if (queue->index >= priv->rxqs_n) + return rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ACTION_CONF, + &queue->index, + "queue index out of range"); + if (!(*priv->rxqs)[queue->index]) + return rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ACTION_CONF, + &queue->index, + "queue is not configured"); + flow->queue = queue->index; + flow->fate |= MLX5_FLOW_FATE_QUEUE; + return 0; +} + /** * Convert the @p action into @p flow after ensuring the NIC will understand * and process it correctly. @@ -520,7 +568,7 @@ mlx5_flow_action_drop(const struct rte_flow_action *action, * On error, a negative errno value is returned and rte_errno is set. */ static int -mlx5_flow_actions(struct rte_eth_dev *dev __rte_unused, +mlx5_flow_actions(struct rte_eth_dev *dev, const struct rte_flow_action actions[], struct rte_flow *flow, const size_t flow_size, struct rte_flow_error *error) @@ -537,6 +585,9 @@ mlx5_flow_actions(struct rte_eth_dev *dev __rte_unused, ret = mlx5_flow_action_drop(actions, flow, remain, error); break; + case RTE_FLOW_ACTION_TYPE_QUEUE: + ret = mlx5_flow_action_queue(dev, actions, flow, error); + break; default: return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, @@ -661,7 +712,10 @@ mlx5_flow_remove(struct rte_eth_dev *dev, struct rte_flow *flow) } } if (flow->verbs.hrxq) { - mlx5_hrxq_drop_release(dev); + if (flow->fate & MLX5_FLOW_FATE_DROP) + mlx5_hrxq_drop_release(dev); + else if (flow->fate & MLX5_FLOW_FATE_QUEUE) + mlx5_hrxq_release(dev, flow->verbs.hrxq); flow->verbs.hrxq = NULL; } } @@ -683,17 +737,38 @@ static int mlx5_flow_apply(struct rte_eth_dev *dev, struct rte_flow *flow, struct rte_flow_error *error) { - flow->verbs.hrxq = mlx5_hrxq_drop_new(dev); - if (!flow->verbs.hrxq) - return rte_flow_error_set - (error, errno, - RTE_FLOW_ERROR_TYPE_UNSPECIFIED, - NULL, - "cannot allocate Drop queue"); + if (flow->fate & MLX5_FLOW_FATE_DROP) { + flow->verbs.hrxq = mlx5_hrxq_drop_new(dev); + if (!flow->verbs.hrxq) + return rte_flow_error_set + (error, errno, + RTE_FLOW_ERROR_TYPE_UNSPECIFIED, + NULL, + "cannot allocate Drop queue"); + } else if (flow->fate & MLX5_FLOW_FATE_QUEUE) { + struct mlx5_hrxq *hrxq; + + hrxq = mlx5_hrxq_get(dev, rss_hash_default_key, + rss_hash_default_key_len, 0, + &flow->queue, 1, 0, 0); + if (!hrxq) + hrxq = mlx5_hrxq_new(dev, rss_hash_default_key, + rss_hash_default_key_len, 0, + &flow->queue, 1, 0, 0); + if (!hrxq) + return rte_flow_error_set(error, rte_errno, + RTE_FLOW_ERROR_TYPE_UNSPECIFIED, + NULL, + "cannot create flow"); + flow->verbs.hrxq = hrxq; + } flow->verbs.flow = mlx5_glue->create_flow(flow->verbs.hrxq->qp, flow->verbs.attr); if (!flow->verbs.flow) { - mlx5_hrxq_drop_release(dev); + if (flow->fate & MLX5_FLOW_FATE_DROP) + mlx5_hrxq_drop_release(dev); + else + mlx5_hrxq_release(dev, flow->verbs.hrxq); flow->verbs.hrxq = NULL; return rte_flow_error_set(error, errno, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, -- 2.20.1