net/mlx4: add RSS flow rule action support

[dpdk.git] / drivers / net / mlx4 / mlx4_rxtx.h

diff --git a/drivers/net/mlx4/mlx4_rxtx.h b/drivers/net/mlx4/mlx4_rxtx.h
index 897fd2a..eca966f 100644 (file)
--- a/drivers/net/mlx4/mlx4_rxtx.h
+++ b/drivers/net/mlx4/mlx4_rxtx.h
@@ -35,6 +35,7 @@
 #define MLX4_RXTX_H_
 
 #include <stdint.h>
+#include <sys/queue.h>
 
 /* Verbs headers do not support -pedantic. */
 #ifdef PEDANTIC
@@ -74,8 +75,6 @@ struct rxq {
        struct ibv_mr *mr; /**< Memory region (for mp). */
        struct ibv_cq *cq; /**< Completion queue. */
        struct ibv_wq *wq; /**< Work queue. */
-       struct ibv_rwq_ind_table *ind; /**< Indirection table. */
-       struct ibv_qp *qp; /**< Queue pair. */
        struct ibv_comp_channel *channel; /**< Rx completion channel. */
        unsigned int port_id; /**< Port ID for incoming packets. */
        unsigned int elts_n; /**< (*elts)[] length. */
@@ -86,6 +85,20 @@ struct rxq {
        uint8_t data[]; /**< Remaining queue resources. */
 };
 
+/** Shared flow target for Rx queues. */
+struct mlx4_rss {
+       LIST_ENTRY(mlx4_rss) next; /**< Next entry in list. */
+       struct priv *priv; /**< Back pointer to private data. */
+       uint32_t refcnt; /**< Reference count for this object. */
+       uint32_t usecnt; /**< Number of users relying on @p qp and @p ind. */
+       struct ibv_qp *qp; /**< Queue pair. */
+       struct ibv_rwq_ind_table *ind; /**< Indirection table. */
+       uint64_t fields; /**< Fields for RSS processing (Verbs format). */
+       uint8_t key[MLX4_RSS_HASH_KEY_SIZE]; /**< Hash key to use. */
+       uint16_t queues; /**< Number of target queues. */
+       uint16_t queue_id[]; /**< Target queues. */
+};
+
 /** Tx element. */
 struct txq_elt {
        struct ibv_send_wr wr; /**< Work request. */
@@ -126,6 +139,13 @@ struct txq {
 
 /* mlx4_rxq.c */
 
+uint8_t mlx4_rss_hash_key_default[MLX4_RSS_HASH_KEY_SIZE];
+struct mlx4_rss *mlx4_rss_get(struct priv *priv, uint64_t fields,
+                             uint8_t key[MLX4_RSS_HASH_KEY_SIZE],
+                             uint16_t queues, const uint16_t queue_id[]);
+void mlx4_rss_put(struct mlx4_rss *rss);
+int mlx4_rss_attach(struct mlx4_rss *rss);
+void mlx4_rss_detach(struct mlx4_rss *rss);
 int mlx4_rx_queue_setup(struct rte_eth_dev *dev, uint16_t idx,
                        uint16_t desc, unsigned int socket,
                        const struct rte_eth_rxconf *conf,