FD.io VPP  v20.09-64-g4f7b92f0a
Vector Packet Processing
netmap_api.c
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1 /*
2  *------------------------------------------------------------------
3  * netmap_api.c - netmap api
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 
20 #include <vnet/vnet.h>
21 #include <vlibmemory/api.h>
22 
23 #include <vnet/interface.h>
24 #include <vnet/api_errno.h>
25 #include <vnet/devices/netmap/netmap.h>
26 
27 #include <vnet/vnet_msg_enum.h>
28 
29 #define vl_typedefs /* define message structures */
30 #include <vnet/vnet_all_api_h.h>
31 #undef vl_typedefs
32 
33 #define vl_endianfun /* define message structures */
34 #include <vnet/vnet_all_api_h.h>
35 #undef vl_endianfun
36 
37 /* instantiate all the print functions we know about */
38 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
39 #define vl_printfun
40 #include <vnet/vnet_all_api_h.h>
41 #undef vl_printfun
42 
44 
45 #define foreach_vpe_api_msg \
46 _(NETMAP_CREATE, netmap_create) \
47 _(NETMAP_DELETE, netmap_delete) \
48 
49 static void
51 {
53  vl_api_netmap_create_reply_t *rmp;
54  int rv = 0;
55  u8 *if_name = NULL;
56 
57  if_name = format (0, "%s", mp->netmap_if_name);
58  vec_add1 (if_name, 0);
59 
60  rv =
61  netmap_create_if (vm, if_name, mp->use_random_hw_addr ? 0 : mp->hw_addr,
62  mp->is_pipe, mp->is_master, 0);
63 
64  vec_free (if_name);
65 
66  REPLY_MACRO (VL_API_NETMAP_CREATE_REPLY);
67 }
68 
69 static void
71 {
73  vl_api_netmap_delete_reply_t *rmp;
74  int rv = 0;
75  u8 *if_name = NULL;
76 
77  if_name = format (0, "%s", mp->netmap_if_name);
78  vec_add1 (if_name, 0);
79 
80  rv = netmap_delete_if (vm, if_name);
81 
82  vec_free (if_name);
83 
84  REPLY_MACRO (VL_API_NETMAP_DELETE_REPLY);
85 }
86 
87 /*
88  * netmap_api_hookup
89  * Add vpe's API message handlers to the table.
90  * vlib has already mapped shared memory and
91  * added the client registration handlers.
92  * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
93  */
94 #define vl_msg_name_crc_list
95 #include <vnet/vnet_all_api_h.h>
96 #undef vl_msg_name_crc_list
97 
98 static void
100 {
101 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
102  foreach_vl_msg_name_crc_netmap;
103 #undef _
104 }
105 
106 static clib_error_t *
108 {
109  api_main_t *am = vlibapi_get_main ();
110 
111 #define _(N,n) \
112  vl_msg_api_set_handlers(VL_API_##N, #n, \
113  vl_api_##n##_t_handler, \
114  vl_noop_handler, \
115  vl_api_##n##_t_endian, \
116  vl_api_##n##_t_print, \
117  sizeof(vl_api_##n##_t), 1);
119 #undef _
120 
121  /*
122  * Set up the (msg_name, crc, message-id) table
123  */
125 
126  return 0;
127 }
128 
130 
131 /*
132  * fd.io coding-style-patch-verification: ON
133  *
134  * Local Variables:
135  * eval: (c-set-style "gnu")
136  * End:
137  */
#define foreach_vpe_api_msg
Definition: netmap_api.c:45
Create netmap.
Definition: netmap.api:27
static void setup_message_id_table(api_main_t *am)
Definition: netmap_api.c:99
#define vec_add1(V, E)
Add 1 element to end of vector (unspecified alignment).
Definition: vec.h:592
vlib_main_t * vm
Definition: in2out_ed.c:1582
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:424
Delete netmap.
Definition: netmap.api:44
unsigned char u8
Definition: types.h:56
static void vl_api_netmap_delete_t_handler(vl_api_netmap_delete_t *mp)
Definition: netmap_api.c:70
static clib_error_t * netmap_api_hookup(vlib_main_t *vm)
Definition: netmap_api.c:107
#define REPLY_MACRO(t)
API main structure, used by both vpp and binary API clients.
Definition: api_common.h:227
#define vec_free(V)
Free vector&#39;s memory (no header).
Definition: vec.h:380
int netmap_create_if(vlib_main_t *vm, u8 *if_name, u8 *hw_addr_set, u8 is_pipe, u8 is_master, u32 *sw_if_index)
Definition: netmap.c:115
VLIB_API_INIT_FUNCTION(netmap_api_hookup)
static vlib_main_t * vlib_get_main(void)
Definition: global_funcs.h:23
static api_main_t * vlibapi_get_main(void)
Definition: api_common.h:389
static void vl_api_netmap_create_t_handler(vl_api_netmap_create_t *mp)
Definition: netmap_api.c:50
int netmap_delete_if(vlib_main_t *vm, u8 *host_if_name)
Definition: netmap.c:246