2 *------------------------------------------------------------------
3 * memif_api.c - memif api
5 * Copyright (c) 2017 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 <vlib/vlib.h>
21 #include <vnet/ethernet/ethernet.h>
22 #include <vlib/unix/unix.h>
23 #include <memif/memif.h>
24 #include <memif/private.h>
26 #include <vlibapi/api.h>
27 #include <vlibmemory/api.h>
29 #include <vnet/ip/ip_types_api.h>
30 #include <vnet/ethernet/ethernet_types_api.h>
32 /* define message IDs */
33 #include <vnet/format_fns.h>
34 #include <memif/memif.api_enum.h>
35 #include <memif/memif.api_types.h>
37 #define REPLY_MSG_ID_BASE mm->msg_id_base
38 #include <vlibapi/api_helper_macros.h>
41 * @brief Message handler for memif_socket_filename_add_del API.
42 * @param mp the vl_api_memif_socket_filename_add_del_t API message
45 vl_api_memif_socket_filename_add_del_t_handler
46 (vl_api_memif_socket_filename_add_del_t * mp)
48 memif_main_t *mm = &memif_main;
51 vl_api_memif_socket_filename_add_del_reply_t *rmp;
58 socket_id = clib_net_to_host_u32 (mp->socket_id);
59 if (socket_id == 0 || socket_id == ~0)
61 rv = VNET_API_ERROR_INVALID_ARGUMENT;
66 mp->socket_filename[ARRAY_LEN (mp->socket_filename) - 1] = 0;
68 rv = vnet_get_api_error_and_free (memif_socket_filename_add_del (
69 is_add, socket_id, (char *) mp->socket_filename));
72 REPLY_MACRO (VL_API_MEMIF_SOCKET_FILENAME_ADD_DEL_REPLY);
76 * @brief Message handler for memif_socket_filename_add_del API.
77 * @param mp the vl_api_memif_socket_filename_add_del_t API message
80 vl_api_memif_socket_filename_add_del_v2_t_handler (
81 vl_api_memif_socket_filename_add_del_v2_t *mp)
83 vl_api_memif_socket_filename_add_del_v2_reply_t *rmp;
84 memif_main_t *mm = &memif_main;
85 char *socket_filename = 0;
90 socket_id = clib_net_to_host_u32 (mp->socket_id);
93 rv = VNET_API_ERROR_INVALID_ARGUMENT;
98 socket_filename = vl_api_from_api_to_new_c_string (&mp->socket_filename);
99 if (mp->is_add && socket_id == (u32) ~0)
100 socket_id = memif_get_unused_socket_id ();
102 rv = vnet_get_api_error_and_free (
103 memif_socket_filename_add_del (mp->is_add, socket_id, socket_filename));
105 vec_free (socket_filename);
108 REPLY_MACRO2 (VL_API_MEMIF_SOCKET_FILENAME_ADD_DEL_V2_REPLY,
109 ({ rmp->socket_id = htonl (socket_id); }));
113 * @brief Message handler for memif_create API.
114 * @param mp vl_api_memif_create_t * mp the api message
117 vl_api_memif_create_t_handler (vl_api_memif_create_t * mp)
119 memif_main_t *mm = &memif_main;
120 vlib_main_t *vm = vlib_get_main ();
121 vl_api_memif_create_reply_t *rmp;
122 memif_create_if_args_t args = { 0 };
123 u32 ring_size = MEMIF_DEFAULT_RING_SIZE;
124 static const u8 empty_hw_addr[6];
129 args.id = clib_net_to_host_u32 (mp->id);
132 args.socket_id = clib_net_to_host_u32 (mp->socket_id);
135 mp->secret[ARRAY_LEN (mp->secret) - 1] = 0;
136 if (strlen ((char *) mp->secret) > 0)
138 vec_validate (args.secret, strlen ((char *) mp->secret));
139 strncpy ((char *) args.secret, (char *) mp->secret,
140 vec_len (args.secret));
144 args.is_master = (ntohl (mp->role) == MEMIF_ROLE_API_MASTER);
147 args.mode = ntohl (mp->mode);
149 args.is_zero_copy = mp->no_zero_copy ? 0 : 1;
152 if (args.is_master == 0)
154 args.rx_queues = MEMIF_DEFAULT_RX_QUEUES;
155 args.tx_queues = MEMIF_DEFAULT_TX_QUEUES;
158 args.rx_queues = mp->rx_queues;
162 args.tx_queues = mp->tx_queues;
169 ring_size = ntohl (mp->ring_size);
171 if (!is_pow2 (ring_size))
173 rv = VNET_API_ERROR_INVALID_ARGUMENT;
176 args.log2_ring_size = min_log2 (ring_size);
179 args.buffer_size = MEMIF_DEFAULT_BUFFER_SIZE;
182 args.buffer_size = ntohs (mp->buffer_size);
186 mac_address_decode (mp->hw_addr, &mac);
187 if (memcmp (&mac, empty_hw_addr, 6) != 0)
189 memcpy (args.hw_addr, &mac, 6);
190 args.hw_addr_set = 1;
193 rv = vnet_get_api_error_and_free (memif_create_if (vm, &args));
195 vec_free (args.secret);
198 REPLY_MACRO2 (VL_API_MEMIF_CREATE_REPLY,
200 rmp->sw_if_index = htonl (args.sw_if_index);
205 * @brief Message handler for memif_create_v2 API.
206 * @param mp vl_api_memif_create_v2_t * mp the api message
209 vl_api_memif_create_v2_t_handler (vl_api_memif_create_v2_t *mp)
211 memif_main_t *mm = &memif_main;
212 vlib_main_t *vm = vlib_get_main ();
213 vl_api_memif_create_reply_t *rmp;
214 memif_create_if_args_t args = { 0 };
215 u32 ring_size = MEMIF_DEFAULT_RING_SIZE;
216 static const u8 empty_hw_addr[6];
221 args.id = clib_net_to_host_u32 (mp->id);
224 args.socket_id = clib_net_to_host_u32 (mp->socket_id);
227 mp->secret[ARRAY_LEN (mp->secret) - 1] = 0;
228 if (strlen ((char *) mp->secret) > 0)
230 vec_validate (args.secret, strlen ((char *) mp->secret));
231 strncpy ((char *) args.secret, (char *) mp->secret,
232 vec_len (args.secret));
236 args.is_master = (ntohl (mp->role) == MEMIF_ROLE_API_MASTER);
239 args.mode = ntohl (mp->mode);
241 args.is_zero_copy = mp->no_zero_copy ? 0 : 1;
243 args.use_dma = mp->use_dma;
246 if (args.is_master == 0)
248 args.rx_queues = MEMIF_DEFAULT_RX_QUEUES;
249 args.tx_queues = MEMIF_DEFAULT_TX_QUEUES;
252 args.rx_queues = mp->rx_queues;
256 args.tx_queues = mp->tx_queues;
263 ring_size = ntohl (mp->ring_size);
265 if (!is_pow2 (ring_size))
267 rv = VNET_API_ERROR_INVALID_ARGUMENT;
270 args.log2_ring_size = min_log2 (ring_size);
273 args.buffer_size = MEMIF_DEFAULT_BUFFER_SIZE;
276 args.buffer_size = ntohs (mp->buffer_size);
280 mac_address_decode (mp->hw_addr, &mac);
281 if (memcmp (&mac, empty_hw_addr, 6) != 0)
283 memcpy (args.hw_addr, &mac, 6);
284 args.hw_addr_set = 1;
287 rv = vnet_api_error (memif_create_if (vm, &args));
289 vec_free (args.secret);
292 REPLY_MACRO2 (VL_API_MEMIF_CREATE_V2_REPLY,
293 ({ rmp->sw_if_index = htonl (args.sw_if_index); }));
297 * @brief Message handler for memif_delete API.
298 * @param mp vl_api_memif_delete_t * mp the api message
301 vl_api_memif_delete_t_handler (vl_api_memif_delete_t * mp)
303 memif_main_t *mm = &memif_main;
304 vlib_main_t *vm = vlib_get_main ();
305 vnet_main_t *vnm = vnet_get_main ();
306 vl_api_memif_delete_reply_t *rmp;
307 vnet_hw_interface_t *hi;
312 vnet_get_sup_hw_interface_api_visible_or_null (vnm,
313 ntohl (mp->sw_if_index));
315 if (hi == NULL || memif_device_class.index != hi->dev_class_index)
316 rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
319 mif = pool_elt_at_index (mm->interfaces, hi->dev_instance);
320 rv = vnet_get_api_error_and_free (memif_delete_if (vm, mif));
323 REPLY_MACRO (VL_API_MEMIF_DELETE_REPLY);
327 send_memif_details (vl_api_registration_t * reg,
329 vnet_sw_interface_t * swif,
330 u8 * interface_name, u32 context)
332 vl_api_memif_details_t *mp;
333 vnet_main_t *vnm = vnet_get_main ();
334 memif_main_t *mm = &memif_main;
335 vnet_hw_interface_t *hwif;
336 memif_socket_file_t *msf;
338 hwif = vnet_get_sup_hw_interface (vnm, swif->sw_if_index);
340 mp = vl_msg_api_alloc (sizeof (*mp));
341 clib_memset (mp, 0, sizeof (*mp));
343 mp->_vl_msg_id = htons (VL_API_MEMIF_DETAILS + mm->msg_id_base);
344 mp->context = context;
346 mp->sw_if_index = htonl (swif->sw_if_index);
347 strncpy ((char *) mp->if_name,
348 (char *) interface_name, ARRAY_LEN (mp->if_name) - 1);
350 if (hwif->hw_address)
352 mac_address_encode ((mac_address_t *) hwif->hw_address, mp->hw_addr);
355 mp->id = clib_host_to_net_u32 (mif->id);
357 msf = pool_elt_at_index (mm->socket_files, mif->socket_file_index);
358 mp->socket_id = clib_host_to_net_u32 (msf->socket_id);
361 (mif->flags & MEMIF_IF_FLAG_IS_SLAVE) ? MEMIF_ROLE_API_SLAVE :
362 MEMIF_ROLE_API_MASTER;
363 mp->role = htonl (mp->role);
364 mp->mode = htonl (mif->mode);
365 mp->ring_size = htonl (1 << mif->run.log2_ring_size);
366 mp->buffer_size = htons (mif->run.buffer_size);
367 mp->zero_copy = (mif->flags & MEMIF_IF_FLAG_ZERO_COPY) ? 1 : 0;
370 mp->flags |= (swif->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) ?
371 IF_STATUS_API_FLAG_ADMIN_UP : 0;
372 mp->flags |= (hwif->flags & VNET_HW_INTERFACE_FLAG_LINK_UP) ?
373 IF_STATUS_API_FLAG_LINK_UP : 0;
374 mp->flags = htonl (mp->flags);
377 vl_api_send_msg (reg, (u8 *) mp);
381 * @brief Message handler for memif_dump API.
382 * @param mp vl_api_memif_dump_t * mp the api message
385 vl_api_memif_dump_t_handler (vl_api_memif_dump_t * mp)
387 memif_main_t *mm = &memif_main;
388 vnet_main_t *vnm = vnet_get_main ();
389 vnet_sw_interface_t *swif;
392 vl_api_registration_t *reg;
394 reg = vl_api_client_index_to_registration (mp->client_index);
398 pool_foreach (mif, mm->interfaces)
400 swif = vnet_get_sw_interface (vnm, mif->sw_if_index);
402 if_name = format (if_name, "%U%c",
403 format_vnet_sw_interface_name,
406 send_memif_details (reg, mif, swif, if_name, mp->context);
407 vec_set_len (if_name, 0);
414 send_memif_socket_filename_details (vl_api_registration_t * reg,
416 u8 * socket_filename, u32 context)
418 vl_api_memif_socket_filename_details_t *mp;
419 memif_main_t *mm = &memif_main;
421 mp = vl_msg_api_alloc (sizeof (*mp));
422 clib_memset (mp, 0, sizeof (*mp));
424 mp->_vl_msg_id = htons (VL_API_MEMIF_SOCKET_FILENAME_DETAILS
426 mp->context = context;
428 mp->socket_id = clib_host_to_net_u32 (socket_id);
429 strncpy ((char *) mp->socket_filename,
430 (char *) socket_filename, ARRAY_LEN (mp->socket_filename) - 1);
432 vl_api_send_msg (reg, (u8 *) mp);
436 * @brief Message handler for memif_socket_filename_dump API.
437 * @param mp vl_api_memif_socket_filename_dump_t api message
440 vl_api_memif_socket_filename_dump_t_handler
441 (vl_api_memif_socket_filename_dump_t * mp)
443 memif_main_t *mm = &memif_main;
444 vl_api_registration_t *reg;
448 reg = vl_api_client_index_to_registration (mp->client_index);
452 hash_foreach (sock_id, msf_idx, mm->socket_file_index_by_sock_id,
454 memif_socket_file_t *msf;
457 msf = pool_elt_at_index(mm->socket_files, msf_idx);
458 filename = msf->filename;
459 send_memif_socket_filename_details(reg, sock_id, filename, mp->context);
463 /* Set up the API message handling tables */
464 #include <memif/memif.api.c>
466 memif_plugin_api_hookup (vlib_main_t * vm)
468 memif_main_t *mm = &memif_main;
470 /* Ask for a correctly-sized block of API message decode slots */
471 mm->msg_id_base = setup_message_id_table ();
476 * fd.io coding-style-patch-verification: ON
479 * eval: (c-set-style "gnu")