1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2010-2014 Intel Corporation 3 */ 4 5 #ifndef __INCLUDE_RTE_PORT_RAS_H__ 6 #define __INCLUDE_RTE_PORT_RAS_H__ 7 8 /** 9 * @file 10 * RTE Port for IPv4 Reassembly 11 * 12 * This port is built on top of pre-initialized single producer rte_ring. In 13 * order to minimize the amount of packets stored in the ring at any given 14 * time, the IP reassembly functionality is executed on ring write operation, 15 * hence this port is implemented as an output port. A regular ring_reader port 16 * can be created to read from the same ring. 17 * 18 * The packets written to the ring are either complete IP datagrams or IP 19 * fragments. The packets read from the ring are all complete IP datagrams, 20 * either jumbo frames (i.e. IP packets with length bigger than MTU) or not. 21 * The complete IP datagrams written to the ring are not changed. The IP 22 * fragments written to the ring are first reassembled and into complete IP 23 * datagrams or dropped on error or IP reassembly time-out. 24 */ 25 26 #include <stdint.h> 27 28 #include "rte_port.h" 29 30 #ifdef __cplusplus 31 extern "C" { 32 #endif 33 34 /** ring_writer_ipv4_ras port parameters */ 35 struct rte_port_ring_writer_ras_params { 36 /** Underlying single consumer ring that has to be pre-initialized. */ 37 struct rte_ring *ring; 38 39 /** Recommended burst size to ring. The actual burst size can be bigger 40 or smaller than this value. */ 41 uint32_t tx_burst_sz; 42 }; 43 44 #define rte_port_ring_writer_ipv4_ras_params rte_port_ring_writer_ras_params 45 46 #define rte_port_ring_writer_ipv6_ras_params rte_port_ring_writer_ras_params 47 48 /** ring_writer_ipv4_ras port operations */ 49 extern struct rte_port_out_ops rte_port_ring_writer_ipv4_ras_ops; 50 51 /** ring_writer_ipv6_ras port operations */ 52 extern struct rte_port_out_ops rte_port_ring_writer_ipv6_ras_ops; 53 54 #ifdef __cplusplus 55 } 56 #endif 57 58 #endif 59