Imported Upstream version 17.05

[deb_dpdk.git] / drivers / net / mlx4 / mlx4_flow.h

diff --git a/drivers/net/mlx4/mlx4_flow.h b/drivers/net/mlx4/mlx4_flow.h
new file mode 100644 (file)
index 0000000..12a293e
--- /dev/null
+++ b/drivers/net/mlx4/mlx4_flow.h
@@ -0,0 +1,102 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright 2017 6WIND S.A.
+ *   Copyright 2017 Mellanox.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of 6WIND S.A. nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef RTE_PMD_MLX4_FLOW_H_
+#define RTE_PMD_MLX4_FLOW_H_
+
+#include <stddef.h>
+#include <stdint.h>
+#include <sys/queue.h>
+
+/* Verbs header. */
+/* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
+#ifdef PEDANTIC
+#pragma GCC diagnostic ignored "-Wpedantic"
+#endif
+#include <infiniband/verbs.h>
+#ifdef PEDANTIC
+#pragma GCC diagnostic error "-Wpedantic"
+#endif
+
+#include <rte_flow.h>
+#include <rte_flow_driver.h>
+#include <rte_byteorder.h>
+
+#include "mlx4.h"
+
+struct rte_flow {
+       LIST_ENTRY(rte_flow) next; /**< Pointer to the next flow structure. */
+       struct ibv_flow *ibv_flow; /**< Verbs flow. */
+       struct ibv_flow_attr *ibv_attr; /**< Pointer to Verbs attributes. */
+       struct ibv_qp *qp; /**< Verbs queue pair. */
+};
+
+int
+mlx4_flow_validate(struct rte_eth_dev *dev,
+                  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 *
+mlx4_flow_create(struct rte_eth_dev *dev,
+                const struct rte_flow_attr *attr,
+                const struct rte_flow_item items[],
+                const struct rte_flow_action actions[],
+                struct rte_flow_error *error);
+
+int
+mlx4_flow_destroy(struct rte_eth_dev *dev,
+                 struct rte_flow *flow,
+                 struct rte_flow_error *error);
+
+int
+mlx4_flow_flush(struct rte_eth_dev *dev,
+               struct rte_flow_error *error);
+
+/** Structure to pass to the conversion function. */
+struct mlx4_flow {
+       struct ibv_flow_attr *ibv_attr; /**< Verbs attribute. */
+       unsigned int offset; /**< Offset in bytes in the ibv_attr buffer. */
+};
+
+struct mlx4_flow_action {
+       uint32_t drop:1; /**< Target is a drop queue. */
+       uint32_t queue:1; /**< Target is a receive queue. */
+       uint32_t queue_id; /**< Identifier of the queue. */
+};
+
+int mlx4_priv_flow_start(struct priv *priv);
+void mlx4_priv_flow_stop(struct priv *priv);
+
+#endif /* RTE_PMD_MLX4_FLOW_H_ */