5a99f20868
This patch adds File Descriptor(FD) port type (e.g. TAP port) to the packet framework library that allows interface with the kernel network stack. The FD port APIs are defined that allow port creation, writing and reading packet from the kernel interface. Signed-off-by: Jasvinder Singh <jasvinder.singh@intel.com> Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
106 lines
3.1 KiB
C
106 lines
3.1 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2016 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __INCLUDE_RTE_PORT_FD_H__
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#define __INCLUDE_RTE_PORT_FD_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @file
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* RTE Port FD Device
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*
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* fd_reader: input port built on top of valid non-blocking file descriptor
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* fd_writer: output port built on top of valid non-blocking file descriptor
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*
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***/
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#include <stdint.h>
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#include <rte_mempool.h>
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#include "rte_port.h"
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/** fd_reader port parameters */
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struct rte_port_fd_reader_params {
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/** File descriptor */
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int fd;
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/** Maximum Transfer Unit (MTU) */
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uint32_t mtu;
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/** Pre-initialized buffer pool */
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struct rte_mempool *mempool;
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};
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/** fd_reader port operations */
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extern struct rte_port_in_ops rte_port_fd_reader_ops;
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/** fd_writer port parameters */
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struct rte_port_fd_writer_params {
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/** File descriptor */
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int fd;
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/**< Recommended write burst size. The actual burst size can be
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* bigger or smaller than this value.
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*/
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uint32_t tx_burst_sz;
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};
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/** fd_writer port operations */
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extern struct rte_port_out_ops rte_port_fd_writer_ops;
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/** fd_writer_nodrop port parameters */
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struct rte_port_fd_writer_nodrop_params {
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/** File descriptor */
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int fd;
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/**< Recommended write burst size. The actual burst size can be
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* bigger or smaller than this value.
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*/
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uint32_t tx_burst_sz;
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/** Maximum number of retries, 0 for no limit */
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uint32_t n_retries;
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};
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/** fd_writer_nodrop port operations */
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extern struct rte_port_out_ops rte_port_fd_writer_nodrop_ops;
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#ifdef __cplusplus
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}
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#endif
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#endif
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