New upstream version 18.05

Change-Id: Icd4170ddc4f63aeae5d0559490e5195b5349f9c2
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>

1 files changed, 121 insertions, 0 deletions

diff --git a/lib/librte_ethdev/rte_flow_driver.h b/lib/librte_ethdev/rte_flow_driver.h
new file mode 100644
index 00000000..1c90c600
--- /dev/null
+++ b/lib/librte_ethdev/rte_flow_driver.h
@@ -0,0 +1,121 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2016 6WIND S.A.
+ * Copyright 2016 Mellanox Technologies, Ltd
+ */
+
+#ifndef RTE_FLOW_DRIVER_H_
+#define RTE_FLOW_DRIVER_H_
+
+/**
+ * @file
+ * RTE generic flow API (driver side)
+ *
+ * This file provides implementation helpers for internal use by PMDs, they
+ * are not intended to be exposed to applications and are not subject to ABI
+ * versioning.
+ */
+
+#include <stdint.h>
+
+#include "rte_ethdev.h"
+#include "rte_flow.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * Generic flow operations structure implemented and returned by PMDs.
+ *
+ * To implement this API, PMDs must handle the RTE_ETH_FILTER_GENERIC filter
+ * type in their .filter_ctrl callback function (struct eth_dev_ops) as well
+ * as the RTE_ETH_FILTER_GET filter operation.
+ *
+ * If successful, this operation must result in a pointer to a PMD-specific
+ * struct rte_flow_ops written to the argument address as described below:
+ *
+ * \code
+ *
+ * // PMD filter_ctrl callback
+ *
+ * static const struct rte_flow_ops pmd_flow_ops = { ... };
+ *
+ * switch (filter_type) {
+ * case RTE_ETH_FILTER_GENERIC:
+ *     if (filter_op != RTE_ETH_FILTER_GET)
+ *         return -EINVAL;
+ *     *(const void **)arg = &pmd_flow_ops;
+ *     return 0;
+ * }
+ *
+ * \endcode
+ *
+ * See also rte_flow_ops_get().
+ *
+ * These callback functions are not supposed to be used by applications
+ * directly, which must rely on the API defined in rte_flow.h.
+ *
+ * Public-facing wrapper functions perform a few consistency checks so that
+ * unimplemented (i.e. NULL) callbacks simply return -ENOTSUP. These
+ * callbacks otherwise only differ by their first argument (with port ID
+ * already resolved to a pointer to struct rte_eth_dev).
+ */
+struct rte_flow_ops {
+	/** See rte_flow_validate(). */
+	int (*validate)
+		(struct rte_eth_dev *,
+		 const struct rte_flow_attr *,
+		 const struct rte_flow_item [],
+		 const struct rte_flow_action [],
+		 struct rte_flow_error *);
+	/** See rte_flow_create(). */
+	struct rte_flow *(*create)
+		(struct rte_eth_dev *,
+		 const struct rte_flow_attr *,
+		 const struct rte_flow_item [],
+		 const struct rte_flow_action [],
+		 struct rte_flow_error *);
+	/** See rte_flow_destroy(). */
+	int (*destroy)
+		(struct rte_eth_dev *,
+		 struct rte_flow *,
+		 struct rte_flow_error *);
+	/** See rte_flow_flush(). */
+	int (*flush)
+		(struct rte_eth_dev *,
+		 struct rte_flow_error *);
+	/** See rte_flow_query(). */
+	int (*query)
+		(struct rte_eth_dev *,
+		 struct rte_flow *,
+		 const struct rte_flow_action *,
+		 void *,
+		 struct rte_flow_error *);
+	/** See rte_flow_isolate(). */
+	int (*isolate)
+		(struct rte_eth_dev *,
+		 int,
+		 struct rte_flow_error *);
+};
+
+/**
+ * Get generic flow operations structure from a port.
+ *
+ * @param port_id
+ *   Port identifier to query.
+ * @param[out] error
+ *   Pointer to flow error structure.
+ *
+ * @return
+ *   The flow operations structure associated with port_id, NULL in case of
+ *   error, in which case rte_errno is set and the error structure contains
+ *   additional details.
+ */
+const struct rte_flow_ops *
+rte_flow_ops_get(uint16_t port_id, struct rte_flow_error *error);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* RTE_FLOW_DRIVER_H_ */