2 *------------------------------------------------------------------
3 * vhost-user_api.c - vhost-user api
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 <vnet/vnet.h>
21 #include <vlibmemory/api.h>
23 #include <vnet/interface.h>
24 #include <vnet/api_errno.h>
25 #include <vnet/devices/virtio/vhost_user.h>
26 #include <vnet/ethernet/ethernet.h>
27 #include <vnet/ethernet/ethernet_types_api.h>
28 #include <vnet/devices/virtio/virtio_types_api.h>
30 #include <vnet/vnet_msg_enum.h>
32 #define vl_typedefs /* define message structures */
33 #include <vnet/vnet_all_api_h.h>
36 #define vl_endianfun /* define message structures */
37 #include <vnet/vnet_all_api_h.h>
40 /* instantiate all the print functions we know about */
41 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
43 #include <vnet/vnet_all_api_h.h>
46 #include <vlibapi/api_helper_macros.h>
48 #define foreach_vpe_api_msg \
49 _(CREATE_VHOST_USER_IF, create_vhost_user_if) \
50 _(MODIFY_VHOST_USER_IF, modify_vhost_user_if) \
51 _(CREATE_VHOST_USER_IF_V2, create_vhost_user_if_v2) \
52 _(MODIFY_VHOST_USER_IF_V2, modify_vhost_user_if_v2) \
53 _(DELETE_VHOST_USER_IF, delete_vhost_user_if) \
54 _(SW_INTERFACE_VHOST_USER_DUMP, sw_interface_vhost_user_dump)
57 vl_api_create_vhost_user_if_t_handler (vl_api_create_vhost_user_if_t * mp)
60 vl_api_create_vhost_user_if_reply_t *rmp;
61 vnet_main_t *vnm = vnet_get_main ();
62 vlib_main_t *vm = vlib_get_main ();
63 u64 disabled_features = (u64) (0ULL);
64 vhost_user_create_if_args_t args = { 0 };
66 args.sw_if_index = (u32) ~ 0;
67 args.feature_mask = (u64) ~ (0ULL);
68 if (mp->disable_mrg_rxbuf)
69 disabled_features = VIRTIO_FEATURE (VIRTIO_NET_F_MRG_RXBUF);
71 if (mp->disable_indirect_desc)
72 disabled_features |= VIRTIO_FEATURE (VIRTIO_RING_F_INDIRECT_DESC);
75 * GSO and PACKED are not supported by feature mask via binary API. We
76 * disable GSO and PACKED feature in the feature mask. They may be enabled
77 * explicitly via enable_gso and enable_packed argument
79 disabled_features |= FEATURE_VIRTIO_NET_F_HOST_GUEST_TSO_FEATURE_BITS |
80 VIRTIO_FEATURE (VIRTIO_F_RING_PACKED);
82 /* EVENT_IDX is disabled by default */
83 disabled_features |= VIRTIO_FEATURE (VIRTIO_RING_F_EVENT_IDX);
84 args.feature_mask &= ~disabled_features;
86 if (mp->use_custom_mac)
87 mac_address_decode (mp->mac_address, (mac_address_t *) args.hwaddr);
89 args.use_custom_mac = mp->use_custom_mac;
90 args.is_server = mp->is_server;
91 args.sock_filename = (char *) mp->sock_filename;
92 args.renumber = mp->renumber;
93 args.custom_dev_instance = ntohl (mp->custom_dev_instance);
94 args.enable_gso = mp->enable_gso;
95 args.enable_packed = mp->enable_packed;
96 rv = vhost_user_create_if (vnm, vm, &args);
98 /* Remember an interface tag for the new interface */
101 /* If a tag was supplied... */
104 /* Make sure it's a proper C-string */
105 mp->tag[ARRAY_LEN (mp->tag) - 1] = 0;
106 u8 *tag = format (0, "%s%c", mp->tag, 0);
107 vnet_set_sw_interface_tag (vnm, tag, args.sw_if_index);
112 REPLY_MACRO2(VL_API_CREATE_VHOST_USER_IF_REPLY,
114 rmp->sw_if_index = ntohl (args.sw_if_index);
120 vl_api_modify_vhost_user_if_t_handler (vl_api_modify_vhost_user_if_t * mp)
123 vl_api_modify_vhost_user_if_reply_t *rmp;
124 u64 disabled_features = (u64) (0ULL);
125 vhost_user_create_if_args_t args = { 0 };
126 vnet_main_t *vnm = vnet_get_main ();
127 vlib_main_t *vm = vlib_get_main ();
129 args.feature_mask = (u64) ~ (0ULL);
131 * GSO and PACKED are not supported by feature mask via binary API. We
132 * disable GSO and PACKED feature in the feature mask. They may be enabled
133 * explicitly via enable_gso and enable_packed argument
135 disabled_features |= FEATURE_VIRTIO_NET_F_HOST_GUEST_TSO_FEATURE_BITS |
136 VIRTIO_FEATURE (VIRTIO_F_RING_PACKED);
138 /* EVENT_IDX is disabled by default */
139 disabled_features |= VIRTIO_FEATURE (VIRTIO_RING_F_EVENT_IDX);
140 args.feature_mask &= ~disabled_features;
142 args.sw_if_index = ntohl (mp->sw_if_index);
143 args.sock_filename = (char *) mp->sock_filename;
144 args.is_server = mp->is_server;
145 args.renumber = mp->renumber;
146 args.custom_dev_instance = ntohl (mp->custom_dev_instance);
147 args.enable_gso = mp->enable_gso;
148 args.enable_packed = mp->enable_packed;
149 rv = vhost_user_modify_if (vnm, vm, &args);
151 REPLY_MACRO (VL_API_MODIFY_VHOST_USER_IF_REPLY);
155 vl_api_create_vhost_user_if_v2_t_handler (vl_api_create_vhost_user_if_v2_t *
159 vl_api_create_vhost_user_if_v2_reply_t *rmp;
160 vnet_main_t *vnm = vnet_get_main ();
161 vlib_main_t *vm = vlib_get_main ();
162 u64 disabled_features = (u64) (0ULL);
163 vhost_user_create_if_args_t args = { 0 };
165 args.sw_if_index = (u32) ~ 0;
166 args.feature_mask = (u64) ~ (0ULL);
167 if (mp->disable_mrg_rxbuf)
168 disabled_features = VIRTIO_FEATURE (VIRTIO_NET_F_MRG_RXBUF);
170 if (mp->disable_indirect_desc)
171 disabled_features |= VIRTIO_FEATURE (VIRTIO_RING_F_INDIRECT_DESC);
174 * GSO and PACKED are not supported by feature mask via binary API. We
175 * disable GSO and PACKED feature in the feature mask. They may be enabled
176 * explicitly via enable_gso and enable_packed argument
178 disabled_features |= FEATURE_VIRTIO_NET_F_HOST_GUEST_TSO_FEATURE_BITS |
179 VIRTIO_FEATURE (VIRTIO_F_RING_PACKED);
181 /* EVENT_IDX is disabled by default */
182 disabled_features |= VIRTIO_FEATURE (VIRTIO_RING_F_EVENT_IDX);
183 args.feature_mask &= ~disabled_features;
185 if (mp->use_custom_mac)
186 mac_address_decode (mp->mac_address, (mac_address_t *) args.hwaddr);
188 args.is_server = mp->is_server;
189 args.sock_filename = (char *) mp->sock_filename;
190 args.renumber = mp->renumber;
191 args.custom_dev_instance = ntohl (mp->custom_dev_instance);
192 args.enable_gso = mp->enable_gso;
193 args.enable_packed = mp->enable_packed;
194 args.enable_event_idx = mp->enable_event_idx;
195 rv = vhost_user_create_if (vnm, vm, &args);
197 /* Remember an interface tag for the new interface */
200 /* If a tag was supplied... */
203 /* Make sure it's a proper C-string */
204 mp->tag[ARRAY_LEN (mp->tag) - 1] = 0;
205 u8 *tag = format (0, "%s%c", mp->tag, 0);
206 vnet_set_sw_interface_tag (vnm, tag, args.sw_if_index);
211 REPLY_MACRO2(VL_API_CREATE_VHOST_USER_IF_V2_REPLY,
213 rmp->sw_if_index = ntohl (args.sw_if_index);
219 vl_api_modify_vhost_user_if_v2_t_handler (vl_api_modify_vhost_user_if_v2_t *
223 vl_api_modify_vhost_user_if_v2_reply_t *rmp;
224 u64 disabled_features = (u64) (0ULL);
225 vhost_user_create_if_args_t args = { 0 };
226 vnet_main_t *vnm = vnet_get_main ();
227 vlib_main_t *vm = vlib_get_main ();
229 args.feature_mask = (u64) ~ (0ULL);
231 * GSO and PACKED are not supported by feature mask via binary API. We
232 * disable GSO and PACKED feature in the feature mask. They may be enabled
233 * explicitly via enable_gso and enable_packed argument
235 disabled_features |= FEATURE_VIRTIO_NET_F_HOST_GUEST_TSO_FEATURE_BITS |
236 VIRTIO_FEATURE (VIRTIO_F_RING_PACKED);
238 /* EVENT_IDX is disabled by default */
239 disabled_features |= VIRTIO_FEATURE (VIRTIO_RING_F_EVENT_IDX);
240 args.feature_mask &= ~disabled_features;
242 args.sw_if_index = ntohl (mp->sw_if_index);
243 args.sock_filename = (char *) mp->sock_filename;
244 args.is_server = mp->is_server;
245 args.renumber = mp->renumber;
246 args.custom_dev_instance = ntohl (mp->custom_dev_instance);
247 args.enable_gso = mp->enable_gso;
248 args.enable_packed = mp->enable_packed;
249 args.enable_event_idx = mp->enable_event_idx;
250 rv = vhost_user_modify_if (vnm, vm, &args);
252 REPLY_MACRO (VL_API_MODIFY_VHOST_USER_IF_V2_REPLY);
256 vl_api_delete_vhost_user_if_t_handler (vl_api_delete_vhost_user_if_t * mp)
259 vl_api_delete_vhost_user_if_reply_t *rmp;
260 u32 sw_if_index = ntohl (mp->sw_if_index);
261 vl_api_registration_t *reg;
263 vnet_main_t *vnm = vnet_get_main ();
264 vlib_main_t *vm = vlib_get_main ();
266 rv = vhost_user_delete_if (vnm, vm, sw_if_index);
268 REPLY_MACRO (VL_API_DELETE_VHOST_USER_IF_REPLY);
271 reg = vl_api_client_index_to_registration (mp->client_index);
275 vnet_clear_sw_interface_tag (vnm, sw_if_index);
280 send_sw_interface_vhost_user_details (vpe_api_main_t * am,
281 vl_api_registration_t * reg,
282 vhost_user_intf_details_t * vui,
285 vl_api_sw_interface_vhost_user_details_t *mp;
287 mp = vl_msg_api_alloc (sizeof (*mp));
288 clib_memset (mp, 0, sizeof (*mp));
289 mp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_VHOST_USER_DETAILS);
290 mp->sw_if_index = ntohl (vui->sw_if_index);
291 mp->virtio_net_hdr_sz = ntohl (vui->virtio_net_hdr_sz);
292 virtio_features_encode (vui->features, (u32 *) & mp->features_first_32,
293 (u32 *) & mp->features_last_32);
294 mp->is_server = vui->is_server;
295 mp->num_regions = ntohl (vui->num_regions);
296 mp->sock_errno = ntohl (vui->sock_errno);
297 mp->context = context;
299 strncpy ((char *) mp->sock_filename,
300 (char *) vui->sock_filename, ARRAY_LEN (mp->sock_filename) - 1);
301 strncpy ((char *) mp->interface_name,
302 (char *) vui->if_name, ARRAY_LEN (mp->interface_name) - 1);
304 vl_api_send_msg (reg, (u8 *) mp);
308 vl_api_sw_interface_vhost_user_dump_t_handler
309 (vl_api_sw_interface_vhost_user_dump_t * mp)
312 vpe_api_main_t *am = &vpe_api_main;
313 vnet_main_t *vnm = vnet_get_main ();
314 vlib_main_t *vm = vlib_get_main ();
315 vhost_user_intf_details_t *ifaces = NULL;
316 vhost_user_intf_details_t *vuid = NULL;
317 vl_api_registration_t *reg;
318 u32 filter_sw_if_index;
320 reg = vl_api_client_index_to_registration (mp->client_index);
324 filter_sw_if_index = htonl (mp->sw_if_index);
325 if (filter_sw_if_index != ~0)
326 VALIDATE_SW_IF_INDEX (mp);
328 rv = vhost_user_dump_ifs (vnm, vm, &ifaces);
332 vec_foreach (vuid, ifaces)
334 if ((filter_sw_if_index == ~0) ||
335 (vuid->sw_if_index == filter_sw_if_index))
336 send_sw_interface_vhost_user_details (am, reg, vuid, mp->context);
338 BAD_SW_IF_INDEX_LABEL;
343 * vhost-user_api_hookup
344 * Add vpe's API message handlers to the table.
345 * vlib has already mapped shared memory and
346 * added the client registration handlers.
347 * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
349 #define vl_msg_name_crc_list
350 #include <vnet/vnet_all_api_h.h>
351 #undef vl_msg_name_crc_list
354 setup_message_id_table (api_main_t * am)
356 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
357 foreach_vl_msg_name_crc_vhost_user;
361 static clib_error_t *
362 vhost_user_api_hookup (vlib_main_t * vm)
364 api_main_t *am = vlibapi_get_main ();
367 vl_msg_api_set_handlers(VL_API_##N, #n, \
368 vl_api_##n##_t_handler, \
370 vl_api_##n##_t_endian, \
371 vl_api_##n##_t_print, \
372 sizeof(vl_api_##n##_t), 1);
376 /* Mark CREATE_VHOST_USER_IF as mp safe */
377 am->is_mp_safe[VL_API_CREATE_VHOST_USER_IF] = 1;
378 am->is_mp_safe[VL_API_CREATE_VHOST_USER_IF_V2] = 1;
381 * Set up the (msg_name, crc, message-id) table
383 setup_message_id_table (am);
388 VLIB_API_INIT_FUNCTION (vhost_user_api_hookup);
391 * fd.io coding-style-patch-verification: ON
394 * eval: (c-set-style "gnu")