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/format_fns.h>
31 #include <vnet/devices/virtio/vhost_user.api_enum.h>
32 #include <vnet/devices/virtio/vhost_user.api_types.h>
34 #define REPLY_MSG_ID_BASE msg_id_base
35 #include <vlibapi/api_helper_macros.h>
37 static u16 msg_id_base;
40 vl_api_create_vhost_user_if_t_handler (vl_api_create_vhost_user_if_t * mp)
43 vl_api_create_vhost_user_if_reply_t *rmp;
44 vnet_main_t *vnm = vnet_get_main ();
45 vlib_main_t *vm = vlib_get_main ();
46 u64 disabled_features = (u64) (0ULL);
47 vhost_user_create_if_args_t args = { 0 };
49 args.sw_if_index = (u32) ~ 0;
50 args.feature_mask = (u64) ~ (0ULL);
51 if (mp->disable_mrg_rxbuf)
52 disabled_features = VIRTIO_FEATURE (VIRTIO_NET_F_MRG_RXBUF);
54 if (mp->disable_indirect_desc)
55 disabled_features |= VIRTIO_FEATURE (VIRTIO_RING_F_INDIRECT_DESC);
58 * GSO and PACKED are not supported by feature mask via binary API. We
59 * disable GSO and PACKED feature in the feature mask. They may be enabled
60 * explicitly via enable_gso and enable_packed argument
62 disabled_features |= FEATURE_VIRTIO_NET_F_HOST_GUEST_TSO_FEATURE_BITS |
63 VIRTIO_FEATURE (VIRTIO_F_RING_PACKED);
65 /* EVENT_IDX is disabled by default */
66 disabled_features |= VIRTIO_FEATURE (VIRTIO_RING_F_EVENT_IDX);
67 args.feature_mask &= ~disabled_features;
69 if (mp->use_custom_mac)
70 mac_address_decode (mp->mac_address, (mac_address_t *) args.hwaddr);
72 args.use_custom_mac = mp->use_custom_mac;
73 args.is_server = mp->is_server;
74 args.sock_filename = (char *) mp->sock_filename;
75 args.renumber = mp->renumber;
76 args.custom_dev_instance = ntohl (mp->custom_dev_instance);
77 args.enable_gso = mp->enable_gso;
78 args.enable_packed = mp->enable_packed;
79 rv = vhost_user_create_if (vnm, vm, &args);
81 /* Remember an interface tag for the new interface */
84 /* If a tag was supplied... */
87 /* Make sure it's a proper C-string */
88 mp->tag[ARRAY_LEN (mp->tag) - 1] = 0;
89 u8 *tag = format (0, "%s%c", mp->tag, 0);
90 vnet_set_sw_interface_tag (vnm, tag, args.sw_if_index);
95 REPLY_MACRO2(VL_API_CREATE_VHOST_USER_IF_REPLY,
97 rmp->sw_if_index = ntohl (args.sw_if_index);
103 vl_api_modify_vhost_user_if_t_handler (vl_api_modify_vhost_user_if_t * mp)
106 vl_api_modify_vhost_user_if_reply_t *rmp;
107 u64 disabled_features = (u64) (0ULL);
108 vhost_user_create_if_args_t args = { 0 };
109 vnet_main_t *vnm = vnet_get_main ();
110 vlib_main_t *vm = vlib_get_main ();
112 args.feature_mask = (u64) ~ (0ULL);
114 * GSO and PACKED are not supported by feature mask via binary API. We
115 * disable GSO and PACKED feature in the feature mask. They may be enabled
116 * explicitly via enable_gso and enable_packed argument
118 disabled_features |= FEATURE_VIRTIO_NET_F_HOST_GUEST_TSO_FEATURE_BITS |
119 VIRTIO_FEATURE (VIRTIO_F_RING_PACKED);
121 /* EVENT_IDX is disabled by default */
122 disabled_features |= VIRTIO_FEATURE (VIRTIO_RING_F_EVENT_IDX);
123 args.feature_mask &= ~disabled_features;
125 args.sw_if_index = ntohl (mp->sw_if_index);
126 args.sock_filename = (char *) mp->sock_filename;
127 args.is_server = mp->is_server;
128 args.renumber = mp->renumber;
129 args.custom_dev_instance = ntohl (mp->custom_dev_instance);
130 args.enable_gso = mp->enable_gso;
131 args.enable_packed = mp->enable_packed;
132 rv = vhost_user_modify_if (vnm, vm, &args);
134 REPLY_MACRO (VL_API_MODIFY_VHOST_USER_IF_REPLY);
138 vl_api_create_vhost_user_if_v2_t_handler (vl_api_create_vhost_user_if_v2_t *
142 vl_api_create_vhost_user_if_v2_reply_t *rmp;
143 vnet_main_t *vnm = vnet_get_main ();
144 vlib_main_t *vm = vlib_get_main ();
145 u64 disabled_features = (u64) (0ULL);
146 vhost_user_create_if_args_t args = { 0 };
148 args.sw_if_index = (u32) ~ 0;
149 args.feature_mask = (u64) ~ (0ULL);
150 if (mp->disable_mrg_rxbuf)
151 disabled_features = VIRTIO_FEATURE (VIRTIO_NET_F_MRG_RXBUF);
153 if (mp->disable_indirect_desc)
154 disabled_features |= VIRTIO_FEATURE (VIRTIO_RING_F_INDIRECT_DESC);
157 * GSO and PACKED are not supported by feature mask via binary API. We
158 * disable GSO and PACKED feature in the feature mask. They may be enabled
159 * explicitly via enable_gso and enable_packed argument
161 disabled_features |= FEATURE_VIRTIO_NET_F_HOST_GUEST_TSO_FEATURE_BITS |
162 VIRTIO_FEATURE (VIRTIO_F_RING_PACKED);
164 /* EVENT_IDX is disabled by default */
165 disabled_features |= VIRTIO_FEATURE (VIRTIO_RING_F_EVENT_IDX);
166 args.feature_mask &= ~disabled_features;
168 if (mp->use_custom_mac)
169 mac_address_decode (mp->mac_address, (mac_address_t *) args.hwaddr);
171 args.use_custom_mac = mp->use_custom_mac;
172 args.is_server = mp->is_server;
173 args.sock_filename = (char *) mp->sock_filename;
174 args.renumber = mp->renumber;
175 args.custom_dev_instance = ntohl (mp->custom_dev_instance);
176 args.enable_gso = mp->enable_gso;
177 args.enable_packed = mp->enable_packed;
178 args.enable_event_idx = mp->enable_event_idx;
179 rv = vhost_user_create_if (vnm, vm, &args);
181 /* Remember an interface tag for the new interface */
184 /* If a tag was supplied... */
187 /* Make sure it's a proper C-string */
188 mp->tag[ARRAY_LEN (mp->tag) - 1] = 0;
189 u8 *tag = format (0, "%s%c", mp->tag, 0);
190 vnet_set_sw_interface_tag (vnm, tag, args.sw_if_index);
195 REPLY_MACRO2(VL_API_CREATE_VHOST_USER_IF_V2_REPLY,
197 rmp->sw_if_index = ntohl (args.sw_if_index);
203 vl_api_modify_vhost_user_if_v2_t_handler (vl_api_modify_vhost_user_if_v2_t *
207 vl_api_modify_vhost_user_if_v2_reply_t *rmp;
208 u64 disabled_features = (u64) (0ULL);
209 vhost_user_create_if_args_t args = { 0 };
210 vnet_main_t *vnm = vnet_get_main ();
211 vlib_main_t *vm = vlib_get_main ();
213 args.feature_mask = (u64) ~ (0ULL);
215 * GSO and PACKED are not supported by feature mask via binary API. We
216 * disable GSO and PACKED feature in the feature mask. They may be enabled
217 * explicitly via enable_gso and enable_packed argument
219 disabled_features |= FEATURE_VIRTIO_NET_F_HOST_GUEST_TSO_FEATURE_BITS |
220 VIRTIO_FEATURE (VIRTIO_F_RING_PACKED);
222 /* EVENT_IDX is disabled by default */
223 disabled_features |= VIRTIO_FEATURE (VIRTIO_RING_F_EVENT_IDX);
224 args.feature_mask &= ~disabled_features;
226 args.sw_if_index = ntohl (mp->sw_if_index);
227 args.sock_filename = (char *) mp->sock_filename;
228 args.is_server = mp->is_server;
229 args.renumber = mp->renumber;
230 args.custom_dev_instance = ntohl (mp->custom_dev_instance);
231 args.enable_gso = mp->enable_gso;
232 args.enable_packed = mp->enable_packed;
233 args.enable_event_idx = mp->enable_event_idx;
234 rv = vhost_user_modify_if (vnm, vm, &args);
236 REPLY_MACRO (VL_API_MODIFY_VHOST_USER_IF_V2_REPLY);
240 vl_api_delete_vhost_user_if_t_handler (vl_api_delete_vhost_user_if_t * mp)
243 vl_api_delete_vhost_user_if_reply_t *rmp;
244 u32 sw_if_index = ntohl (mp->sw_if_index);
245 vl_api_registration_t *reg;
247 vnet_main_t *vnm = vnet_get_main ();
248 vlib_main_t *vm = vlib_get_main ();
250 rv = vhost_user_delete_if (vnm, vm, sw_if_index);
252 REPLY_MACRO (VL_API_DELETE_VHOST_USER_IF_REPLY);
255 reg = vl_api_client_index_to_registration (mp->client_index);
259 vnet_clear_sw_interface_tag (vnm, sw_if_index);
264 send_sw_interface_vhost_user_details (vpe_api_main_t * am,
265 vl_api_registration_t * reg,
266 vhost_user_intf_details_t * vui,
269 vl_api_sw_interface_vhost_user_details_t *mp;
271 mp = vl_msg_api_alloc (sizeof (*mp));
272 clib_memset (mp, 0, sizeof (*mp));
274 ntohs (REPLY_MSG_ID_BASE + VL_API_SW_INTERFACE_VHOST_USER_DETAILS);
275 mp->sw_if_index = ntohl (vui->sw_if_index);
276 mp->virtio_net_hdr_sz = ntohl (vui->virtio_net_hdr_sz);
277 virtio_features_encode (vui->features, (u32 *) & mp->features_first_32,
278 (u32 *) & mp->features_last_32);
279 mp->is_server = vui->is_server;
280 mp->num_regions = ntohl (vui->num_regions);
281 mp->sock_errno = ntohl (vui->sock_errno);
282 mp->context = context;
284 strncpy ((char *) mp->sock_filename,
285 (char *) vui->sock_filename, ARRAY_LEN (mp->sock_filename) - 1);
286 strncpy ((char *) mp->interface_name,
287 (char *) vui->if_name, ARRAY_LEN (mp->interface_name) - 1);
289 vl_api_send_msg (reg, (u8 *) mp);
293 vl_api_sw_interface_vhost_user_dump_t_handler
294 (vl_api_sw_interface_vhost_user_dump_t * mp)
297 vpe_api_main_t *am = &vpe_api_main;
298 vnet_main_t *vnm = vnet_get_main ();
299 vlib_main_t *vm = vlib_get_main ();
300 vhost_user_intf_details_t *ifaces = NULL;
301 vhost_user_intf_details_t *vuid = NULL;
302 vl_api_registration_t *reg;
303 u32 filter_sw_if_index;
305 reg = vl_api_client_index_to_registration (mp->client_index);
309 filter_sw_if_index = htonl (mp->sw_if_index);
310 if (filter_sw_if_index != ~0)
311 VALIDATE_SW_IF_INDEX (mp);
313 rv = vhost_user_dump_ifs (vnm, vm, &ifaces);
317 vec_foreach (vuid, ifaces)
319 if ((filter_sw_if_index == ~0) ||
320 (vuid->sw_if_index == filter_sw_if_index))
321 send_sw_interface_vhost_user_details (am, reg, vuid, mp->context);
323 BAD_SW_IF_INDEX_LABEL;
327 #include <vnet/devices/virtio/vhost_user.api.c>
328 static clib_error_t *
329 vhost_user_api_hookup (vlib_main_t * vm)
331 api_main_t *am = vlibapi_get_main ();
332 /* Mark CREATE_VHOST_USER_IF as mp safe */
333 vl_api_set_msg_thread_safe (am, VL_API_CREATE_VHOST_USER_IF, 1);
334 vl_api_set_msg_thread_safe (am, VL_API_CREATE_VHOST_USER_IF_V2, 1);
337 * Set up the (msg_name, crc, message-id) table
339 REPLY_MSG_ID_BASE = setup_message_id_table ();
344 VLIB_API_INIT_FUNCTION (vhost_user_api_hookup);
347 * fd.io coding-style-patch-verification: ON
350 * eval: (c-set-style "gnu")