2 *------------------------------------------------------------------
3 * af_packet.h - linux kernel packet interface header file
5 * Copyright (c) 2016 Cisco and/or its affiliates.
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at:
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 *------------------------------------------------------------------
20 #include <linux/if_packet.h>
22 #include <vppinfra/lock.h>
25 typedef struct tpacket_block_desc block_desc_t;
26 typedef struct tpacket_req3 tpacket_req3_t;
27 typedef struct tpacket3_hdr tpacket3_hdr_t;
31 AF_PACKET_IF_MODE_ETHERNET = 1,
32 AF_PACKET_IF_MODE_IP = 2
33 } af_packet_if_mode_t;
39 } af_packet_if_detail_t;
49 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
50 clib_spinlock_t lockp;
54 tpacket_req3_t *rx_req;
55 tpacket_req3_t *tx_req;
78 vnet_hw_if_rx_mode mode;
83 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
86 u32 per_interface_next_index;
87 af_packet_if_mode_t mode;
89 u8 is_cksum_gso_enabled;
91 af_packet_queue_t *rx_queues;
92 af_packet_queue_t *tx_queues;
104 af_packet_ring_t *rings;
109 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
110 af_packet_if_t *interfaces;
112 /* rx buffer cache */
115 /* hash of host interface names */
116 mhash_t if_index_by_host_if_name;
119 vlib_log_class_t log_class;
128 u32 rx_frames_per_block;
129 u32 tx_frames_per_block;
132 af_packet_if_mode_t mode;
136 } af_packet_create_if_arg_t;
138 extern af_packet_main_t af_packet_main;
139 extern vnet_device_class_t af_packet_device_class;
140 extern vlib_node_registration_t af_packet_input_node;
142 int af_packet_create_if (af_packet_create_if_arg_t *arg);
143 int af_packet_delete_if (u8 *host_if_name);
144 int af_packet_set_l4_cksum_offload (u32 sw_if_index, u8 set);
145 int af_packet_dump_ifs (af_packet_if_detail_t ** out_af_packet_ifs);
147 format_function_t format_af_packet_device_name;
149 #define MIN(x,y) (((x)<(y))?(x):(y))
152 * fd.io coding-style-patch-verification: ON
155 * eval: (c-set-style "gnu")