2 *------------------------------------------------------------------
3 * Copyright (c) 2016 Cisco and/or its affiliates.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *------------------------------------------------------------------
19 #include <sys/ioctl.h>
22 #include <vlib/vlib.h>
23 #include <vlib/unix/unix.h>
24 #include <vnet/ethernet/ethernet.h>
26 #include <memif/memif.h>
27 #include <memif/private.h>
30 memif_create_command_fn (vlib_main_t * vm, unformat_input_t * input,
31 vlib_cli_command_t * cmd)
33 unformat_input_t _line_input, *line_input = &_line_input;
35 u32 ring_size = MEMIF_DEFAULT_RING_SIZE;
36 memif_create_if_args_t args = { 0 };
37 args.buffer_size = MEMIF_DEFAULT_BUFFER_SIZE;
38 u32 rx_queues = MEMIF_DEFAULT_RX_QUEUES;
39 u32 tx_queues = MEMIF_DEFAULT_TX_QUEUES;
41 /* Get a line of input. */
42 if (!unformat_user (input, unformat_line_input, line_input))
45 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
47 if (unformat (line_input, "id %u", &args.id))
49 else if (unformat (line_input, "socket %s", &args.socket_filename))
51 else if (unformat (line_input, "secret %s", &args.secret))
53 else if (unformat (line_input, "ring-size %u", &ring_size))
55 else if (unformat (line_input, "rx-queues %u", &rx_queues))
57 else if (unformat (line_input, "tx-queues %u", &tx_queues))
59 else if (unformat (line_input, "buffer-size %u", &args.buffer_size))
61 else if (unformat (line_input, "master"))
63 else if (unformat (line_input, "slave"))
65 else if (unformat (line_input, "hw-addr %U",
66 unformat_ethernet_address, args.hw_addr))
69 return clib_error_return (0, "unknown input `%U'",
70 format_unformat_error, input);
72 unformat_free (line_input);
74 if (!is_pow2 (ring_size))
75 return clib_error_return (0, "ring size must be power of 2");
77 args.log2_ring_size = min_log2 (ring_size);
79 if (rx_queues > 255 || rx_queues < 1)
80 return clib_error_return (0, "rx queue must be between 1 - 255");
81 if (tx_queues > 255 || tx_queues < 1)
82 return clib_error_return (0, "tx queue must be between 1 - 255");
84 args.rx_queues = rx_queues;
85 args.tx_queues = tx_queues;
87 r = memif_create_if (vm, &args);
89 vec_free (args.socket_filename);
90 vec_free (args.secret);
92 if (r <= VNET_API_ERROR_SYSCALL_ERROR_1
93 && r >= VNET_API_ERROR_SYSCALL_ERROR_10)
94 return clib_error_return (0, "%s (errno %d)", strerror (errno), errno);
96 if (r == VNET_API_ERROR_INVALID_INTERFACE)
97 return clib_error_return (0, "Invalid interface name");
99 if (r == VNET_API_ERROR_SUBIF_ALREADY_EXISTS)
100 return clib_error_return (0, "Interface with same id already exists");
106 VLIB_CLI_COMMAND (memif_create_command, static) = {
107 .path = "create memif",
108 .short_help = "create memif [id <id>] [socket <path>] "
109 "[ring-size <size>] [buffer-size <size>] [hw-addr <mac-address>] "
110 "<master|slave> [rx-queues <number>] [tx-queues <number>]",
111 .function = memif_create_command_fn,
115 static clib_error_t *
116 memif_delete_command_fn (vlib_main_t * vm, unformat_input_t * input,
117 vlib_cli_command_t * cmd)
119 unformat_input_t _line_input, *line_input = &_line_input;
120 u32 sw_if_index = ~0;
121 vnet_hw_interface_t *hw;
122 memif_main_t *mm = &memif_main;
124 vnet_main_t *vnm = vnet_get_main ();
126 /* Get a line of input. */
127 if (!unformat_user (input, unformat_line_input, line_input))
130 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
132 if (unformat (line_input, "sw_if_index %d", &sw_if_index))
134 else if (unformat (line_input, "%U", unformat_vnet_sw_interface,
138 return clib_error_return (0, "unknown input `%U'",
139 format_unformat_error, input);
141 unformat_free (line_input);
143 if (sw_if_index == ~0)
144 return clib_error_return (0,
145 "please specify interface name or sw_if_index");
147 hw = vnet_get_sup_hw_interface (vnm, sw_if_index);
148 if (hw == NULL || memif_device_class.index != hw->dev_class_index)
149 return clib_error_return (0, "not a memif interface");
151 mif = pool_elt_at_index (mm->interfaces, hw->dev_instance);
152 memif_delete_if (vm, mif);
158 VLIB_CLI_COMMAND (memif_delete_command, static) = {
159 .path = "delete memif",
160 .short_help = "delete memif {<interface> | sw_if_index <sw_idx>}",
161 .function = memif_delete_command_fn,
166 format_memif_if_flags (u8 * s, va_list * args)
168 u32 flags = va_arg (*args, u32);
169 #define _(a,b,c) if ( flags & (1 << a)) s = format (s, " %s", c);
170 foreach_memif_if_flag
176 format_memif_if_mode (u8 * s, va_list * args)
178 memif_if_t *mif = va_arg (*args, memif_if_t *);
179 if (mif->mode == MEMIF_INTERFACE_MODE_ETHERNET)
180 return format (s, "ethernet");
181 if (mif->mode == MEMIF_INTERFACE_MODE_IP)
182 return format (s, "ip");
183 if (mif->mode == MEMIF_INTERFACE_MODE_PUNT_INJECT)
184 return format (s, "punt-inject");
185 return format (s, "unknown mode (%u)", mif->mode);;
189 format_memif_queue (u8 * s, va_list * args)
191 memif_if_t *mif = va_arg (*args, memif_if_t *);
192 memif_queue_t *mq = va_arg (*args, memif_queue_t *);
193 uword i = va_arg (*args, uword);
194 uword indent = format_get_indent (s);
196 s = format (s, "%U%s ring %u:\n",
197 format_white_space, indent,
198 (mif->flags & MEMIF_IF_FLAG_IS_SLAVE) ?
199 "slave-to-master" : "master-to-slave", i);
200 s = format (s, "%Uregion %u offset %u ring-size %u int-fd %d\n",
201 format_white_space, indent + 4,
202 mq->region, mq->offset, (1 << mq->log2_ring_size), mq->int_fd);
205 s = format (s, "%Uhead %u tail %u flags 0x%04x interrupts %u\n",
206 format_white_space, indent + 4,
207 mq->ring->head, mq->ring->tail, mq->ring->flags,
213 static clib_error_t *
214 memif_show_command_fn (vlib_main_t * vm, unformat_input_t * input,
215 vlib_cli_command_t * cmd)
217 memif_main_t *mm = &memif_main;
219 vnet_main_t *vnm = vnet_get_main ();
224 pool_foreach (mif, mm->interfaces,
226 memif_socket_file_t * msf = vec_elt_at_index (mm->socket_files,
227 mif->socket_file_index);
228 vlib_cli_output (vm, "interface %U", format_vnet_sw_if_index_name,
229 vnm, mif->sw_if_index);
230 if (mif->remote_name)
231 vlib_cli_output (vm, " remote-name \"%s\"", mif->remote_name);
232 if (mif->remote_if_name)
233 vlib_cli_output (vm, " remote-interface \"%s\"", mif->remote_if_name);
234 vlib_cli_output (vm, " id %d mode %U file %s", mif->id,
235 format_memif_if_mode, mif, msf->filename);
236 vlib_cli_output (vm, " flags%U", format_memif_if_flags, mif->flags);
237 vlib_cli_output (vm, " listener-fd %d conn-fd %d", msf->fd, mif->conn_fd);
238 vlib_cli_output (vm, " num-s2m-rings %u num-m2s-rings %u buffer-size %u",
239 mif->run.num_s2m_rings,
240 mif->run.num_m2s_rings,
241 mif->run.buffer_size);
243 if (mif->local_disc_string)
244 vlib_cli_output (vm, " local-disc-reason \"%s\"", mif->local_disc_string);
245 if (mif->remote_disc_string)
246 vlib_cli_output (vm, " remote-disc-reason \"%s\"", mif->remote_disc_string);
248 vec_foreach_index (i, mif->tx_queues)
250 mq = vec_elt_at_index (mif->tx_queues, i);
251 vlib_cli_output (vm, " %U", format_memif_queue, mif, mq, i);
253 vec_foreach_index (i, mif->rx_queues)
255 mq = vec_elt_at_index (mif->rx_queues, i);
256 vlib_cli_output (vm, " %U", format_memif_queue, mif, mq, i);
265 VLIB_CLI_COMMAND (memif_show_command, static) = {
266 .path = "show memif",
267 .short_help = "show memif",
268 .function = memif_show_command_fn,
273 memif_cli_init (vlib_main_t * vm)
278 VLIB_INIT_FUNCTION (memif_cli_init);
281 * fd.io coding-style-patch-verification: ON
284 * eval: (c-set-style "gnu")