1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
/*
*------------------------------------------------------------------
* Copyright (c) 2020 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*------------------------------------------------------------------
*/
#include <vlib/vlib.h>
#include <vnet/vnet.h>
#include <af_xdp/af_xdp.h>
#include <vlibapi/api.h>
#include <vlibmemory/api.h>
/* define message IDs */
#include <af_xdp/af_xdp.api_enum.h>
#include <af_xdp/af_xdp.api_types.h>
#include <vlibapi/api_helper_macros.h>
static af_xdp_mode_t
af_xdp_api_mode (vl_api_af_xdp_mode_t mode)
{
switch (mode)
{
case AF_XDP_API_MODE_AUTO:
return AF_XDP_MODE_AUTO;
case AF_XDP_API_MODE_COPY:
return AF_XDP_MODE_COPY;
case AF_XDP_API_MODE_ZERO_COPY:
return AF_XDP_MODE_ZERO_COPY;
}
return AF_XDP_MODE_AUTO;
}
static af_xdp_create_flag_t
af_xdp_api_flags (vl_api_af_xdp_flag_t flags)
{
af_xdp_create_flag_t cflags = 0;
if (flags & AF_XDP_API_FLAGS_NO_SYSCALL_LOCK)
cflags |= AF_XDP_CREATE_FLAGS_NO_SYSCALL_LOCK;
return cflags;
}
static void
vl_api_af_xdp_create_t_handler (vl_api_af_xdp_create_t * mp)
{
vlib_main_t *vm = vlib_get_main ();
af_xdp_main_t *rm = &af_xdp_main;
vl_api_af_xdp_create_reply_t *rmp;
af_xdp_create_if_args_t args;
int rv;
clib_memset (&args, 0, sizeof (af_xdp_create_if_args_t));
args.linux_ifname = mp->host_if[0] ? (char *) mp->host_if : 0;
args.name = mp->name[0] ? (char *) mp->name : 0;
args.prog = mp->prog[0] ? (char *) mp->prog : 0;
args.mode = af_xdp_api_mode (mp->mode);
args.flags = af_xdp_api_flags (mp->flags);
args.rxq_size = ntohs (mp->rxq_size);
args.txq_size = ntohs (mp->txq_size);
args.rxq_num = ntohs (mp->rxq_num);
af_xdp_create_if (vm, &args);
rv = args.rv;
/* *INDENT-OFF* */
REPLY_MACRO2 (VL_API_AF_XDP_CREATE_REPLY + rm->msg_id_base,
({
rmp->sw_if_index = ntohl (args.sw_if_index);
}));
/* *INDENT-ON* */
}
static void
vl_api_af_xdp_create_v2_t_handler (vl_api_af_xdp_create_v2_t *mp)
{
vlib_main_t *vm = vlib_get_main ();
af_xdp_main_t *rm = &af_xdp_main;
vl_api_af_xdp_create_v2_reply_t *rmp;
af_xdp_create_if_args_t args;
int rv;
clib_memset (&args, 0, sizeof (af_xdp_create_if_args_t));
args.linux_ifname = mp->host_if[0] ? (char *) mp->host_if : 0;
args.name = mp->name[0] ? (char *) mp->name : 0;
args.prog = mp->prog[0] ? (char *) mp->prog : 0;
args.netns = mp->namespace[0] ? (char *) mp->namespace : 0;
args.mode = af_xdp_api_mode (mp->mode);
args.flags = af_xdp_api_flags (mp->flags);
args.rxq_size = ntohs (mp->rxq_size);
args.txq_size = ntohs (mp->txq_size);
args.rxq_num = ntohs (mp->rxq_num);
af_xdp_create_if (vm, &args);
rv = args.rv;
/* clang-format off */
REPLY_MACRO2 (VL_API_AF_XDP_CREATE_V2_REPLY + rm->msg_id_base,
({
rmp->sw_if_index = ntohl (args.sw_if_index);
}));
/* clang-format on */
}
static void
vl_api_af_xdp_delete_t_handler (vl_api_af_xdp_delete_t * mp)
{
vlib_main_t *vm = vlib_get_main ();
vnet_main_t *vnm = vnet_get_main ();
af_xdp_main_t *rm = &af_xdp_main;
vl_api_af_xdp_delete_reply_t *rmp;
af_xdp_device_t *rd;
vnet_hw_interface_t *hw;
int rv = 0;
hw =
vnet_get_sup_hw_interface_api_visible_or_null (vnm,
htonl (mp->sw_if_index));
if (hw == NULL || af_xdp_device_class.index != hw->dev_class_index)
{
rv = VNET_API_ERROR_INVALID_INTERFACE;
goto reply;
}
rd = pool_elt_at_index (rm->devices, hw->dev_instance);
af_xdp_delete_if (vm, rd);
reply:
REPLY_MACRO (VL_API_AF_XDP_DELETE_REPLY + rm->msg_id_base);
}
/* set tup the API message handling tables */
#include <af_xdp/af_xdp.api.c>
static clib_error_t *
af_xdp_plugin_api_hookup (vlib_main_t * vm)
{
af_xdp_main_t *rm = &af_xdp_main;
/* ask for a correctly-sized block of API message decode slots */
rm->msg_id_base = setup_message_id_table ();
return 0;
}
VLIB_API_INIT_FUNCTION (af_xdp_plugin_api_hookup);
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
|
