1 /* 2 * Copyright (C) 2017-2021 THL A29 Limited, a Tencent company. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, this 9 * list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR 18 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 23 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 * 25 */ 26 27 #ifndef _FSTACK_DPDK_KNI_H 28 #define _FSTACK_DPDK_KNI_H 29 30 #include <rte_config.h> 31 #include <rte_mbuf.h> 32 #include <rte_mempool.h> 33 34 extern int enable_kni; 35 36 enum FilterReturn { 37 FILTER_UNKNOWN = -1, 38 FILTER_ARP = 1, 39 FILTER_KNI = 2, 40 #ifdef INET6 41 FILTER_NDP = 3, // Neighbor Solicitation/Advertisement, Router Solicitation/Advertisement/Redirect 42 #endif 43 }; 44 45 void ff_kni_init(uint16_t nb_ports, const char *tcp_ports, 46 const char *udp_ports); 47 48 void ff_kni_alloc(uint16_t port_id, unsigned socket_id, 49 struct rte_mempool *mbuf_pool, unsigned ring_queue_size); 50 51 void ff_kni_process(uint16_t port_id, uint16_t queue_id, 52 struct rte_mbuf **pkts_burst, unsigned count); 53 54 enum FilterReturn ff_kni_proto_filter(const void *data, uint16_t len, uint16_t eth_frame_type); 55 56 int ff_kni_enqueue(uint16_t port_id, struct rte_mbuf *pkt); 57 58 59 #endif /* ifndef _FSTACK_DPDK_KNI_H */ 60