blob: 395f2d93fdf13eb532e2b0f7540a1b2c538540c1 [file] [log] [blame]
Damjan Marion83243a02016-02-29 13:09:30 +01001/*
2 *------------------------------------------------------------------
3 * af_packet.h - linux kernel packet interface header file
4 *
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:
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
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 *------------------------------------------------------------------
18 */
19
Damjan Marion1927da22017-03-27 17:08:20 +020020#include <vppinfra/lock.h>
21
Mohsin Kazmiacba9f72018-05-17 15:42:27 +020022#include <vlib/log.h>
23
Damjan Marion00a9dca2016-08-17 17:05:46 +020024typedef struct
25{
Mohsin Kazmi04e0bb22018-05-28 18:55:37 +020026 u32 sw_if_index;
27 u8 host_if_name[64];
28} af_packet_if_detail_t;
29
30typedef struct
31{
Damjan Marion00a9dca2016-08-17 17:05:46 +020032 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
Damjan Marion1927da22017-03-27 17:08:20 +020033 clib_spinlock_t lockp;
Damjan Marion00a9dca2016-08-17 17:05:46 +020034 u8 *host_if_name;
Ray Kinsellac855b732017-04-21 12:24:43 +010035 int host_if_index;
Damjan Marion83243a02016-02-29 13:09:30 +010036 int fd;
Damjan Marion00a9dca2016-08-17 17:05:46 +020037 struct tpacket_req *rx_req;
38 struct tpacket_req *tx_req;
39 u8 *rx_ring;
40 u8 *tx_ring;
Damjan Marion83243a02016-02-29 13:09:30 +010041 u32 hw_if_index;
42 u32 sw_if_index;
Damjan Marion56dd5432017-09-08 19:52:02 +020043 u32 clib_file_index;
Damjan Marion83243a02016-02-29 13:09:30 +010044
45 u32 next_rx_frame;
46 u32 next_tx_frame;
47
48 u32 per_interface_next_index;
49 u8 is_admin_up;
Mohammed Hawari85c19432020-12-18 16:29:45 +010050 u32 queue_index;
Damjan Marion83243a02016-02-29 13:09:30 +010051} af_packet_if_t;
52
Damjan Marion00a9dca2016-08-17 17:05:46 +020053typedef struct
54{
55 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
56 af_packet_if_t *interfaces;
Damjan Marion83243a02016-02-29 13:09:30 +010057
58 /* bitmap of pending rx interfaces */
Damjan Marion00a9dca2016-08-17 17:05:46 +020059 uword *pending_input_bitmap;
Damjan Marion83243a02016-02-29 13:09:30 +010060
61 /* rx buffer cache */
Damjan Marion553f6bd2016-09-07 11:54:22 +020062 u32 **rx_buffers;
Damjan Marion83243a02016-02-29 13:09:30 +010063
64 /* hash of host interface names */
65 mhash_t if_index_by_host_if_name;
Mohsin Kazmiacba9f72018-05-17 15:42:27 +020066
67 /** log class */
68 vlib_log_class_t log_class;
Damjan Marion83243a02016-02-29 13:09:30 +010069} af_packet_main_t;
70
Dave Wallace71612d62017-10-24 01:32:41 -040071extern af_packet_main_t af_packet_main;
Damjan Marion83243a02016-02-29 13:09:30 +010072extern vnet_device_class_t af_packet_device_class;
73extern vlib_node_registration_t af_packet_input_node;
74
Damjan Marion00a9dca2016-08-17 17:05:46 +020075int af_packet_create_if (vlib_main_t * vm, u8 * host_if_name,
76 u8 * hw_addr_set, u32 * sw_if_index);
77int af_packet_delete_if (vlib_main_t * vm, u8 * host_if_name);
Jakub Grajciar92b02752017-10-20 13:37:28 +020078int af_packet_set_l4_cksum_offload (vlib_main_t * vm, u32 sw_if_index,
79 u8 set);
Mohsin Kazmi04e0bb22018-05-28 18:55:37 +020080int af_packet_dump_ifs (af_packet_if_detail_t ** out_af_packet_ifs);
Damjan Marion00a9dca2016-08-17 17:05:46 +020081
Damjan Marionceab7882018-01-19 20:56:12 +010082format_function_t format_af_packet_device_name;
83
Mohsin Kazmi04e0bb22018-05-28 18:55:37 +020084#define MIN(x,y) (((x)<(y))?(x):(y))
85
Damjan Marion00a9dca2016-08-17 17:05:46 +020086/*
87 * fd.io coding-style-patch-verification: ON
88 *
89 * Local Variables:
90 * eval: (c-set-style "gnu")
91 * End:
92 */