rte_flow_driver.h File Reference

#include <stdint.h>
#include "rte_ethdev.h"
#include "rte_flow.h"

Go to the source code of this file.

Data Structures
struct	rte_flow_ops
struct	rte_flow_expand_node
struct	rte_flow_expand_rss

Macros
#define	RTE_FLOW_EXPAND_RSS_NEXT(...)

Functions
struct rte_flow_ops *	rte_flow_ops_get (uint16_t port_id, struct rte_flow_error *error)
int __rte_experimental	rte_flow_expand_rss (struct rte_flow_expand_rss *buf, size_t size, const struct rte_flow_item *pattern, uint64_t types, const struct rte_flow_expand_node graph[], int graph_root_index)

Detailed Description

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.

Definition in file rte_flow_driver.h.

Macro Definition Documentation

#define RTE_FLOW_EXPAND_RSS_NEXT

(

...

)

Value:

(const int []){ \
                __VA_ARGS__, 0, \
        }

Helper macro to build input graph for rte_flow_expand_rss().

Definition at line 118 of file rte_flow_driver.h.

Function Documentation

struct rte_flow_ops* rte_flow_ops_get ( uint16_t  port_id, struct rte_flow_error *  error  )

read

Get generic flow operations structure from a port.

Parameters

	port_id	Port identifier to query.
[out]	error	Pointer to flow error structure.

Returns

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.

int __rte_experimental rte_flow_expand_rss	(	struct rte_flow_expand_rss *	buf,
		size_t	size,
		const struct rte_flow_item *	pattern,
		uint64_t	types,
		const struct rte_flow_expand_node	graph[],
		int	graph_root_index
	)

Expand RSS flows into several possible flows according to the RSS hash fields requested and the driver capabilities.

EXPERIMENTAL: this API may change without prior notice

Parameters

[out]	buf	Buffer to store the result expansion.
[in]	size	Buffer size in bytes. If 0, buf can be NULL.
[in]	pattern	User flow pattern.
[in]	types	RSS types to expand (see ETH_RSS_* definitions).
[in]	graph	Input graph to expand pattern according to types.
[in]	graph_root_index	Index of root node in graph, typically 0.

Returns

A positive value representing the size of buf in bytes regardless of size on success, a negative errno value otherwise and rte_errno is set, the following errors are defined:

-E2BIG: graph-depth graph is too deep.