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,
214 format_memif_descriptor (u8 * s, va_list * args)
216 memif_if_t *mif = va_arg (*args, memif_if_t *);
217 memif_queue_t *mq = va_arg (*args, memif_queue_t *);
218 uword indent = format_get_indent (s);
223 ring_size = 1 << mq->log2_ring_size;
227 s = format (s, "%Udescriptor table:\n", format_white_space, indent);
230 "%Uid flags buf len desc len address offset user address\n",
231 format_white_space, indent);
234 "%U===== ===== ======= ======== ================== ====== ==================\n",
235 format_white_space, indent);
236 for (slot = 0; slot < ring_size; slot++)
238 s = format (s, "%U%-5d %-5d %-7d %-7d 0x%016lx %-6d 0x%016lx\n",
239 format_white_space, indent, slot,
240 ring->desc[slot].flags, ring->desc[slot].buffer_length,
241 ring->desc[slot].length,
242 mif->regions[ring->desc[slot].region].shm,
243 ring->desc[slot].offset, memif_get_buffer (mif, ring,
246 s = format (s, "\n");
252 static clib_error_t *
253 memif_show_command_fn (vlib_main_t * vm, unformat_input_t * input,
254 vlib_cli_command_t * cmd)
256 memif_main_t *mm = &memif_main;
258 vnet_main_t *vnm = vnet_get_main ();
262 clib_error_t *error = 0;
263 u32 hw_if_index, *hw_if_indices = 0;
265 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
268 (input, "%U", unformat_vnet_hw_interface, vnm, &hw_if_index))
269 vec_add1 (hw_if_indices, hw_if_index);
270 else if (unformat (input, "descriptors"))
274 error = clib_error_return (0, "unknown input `%U'",
275 format_unformat_error, input);
280 if (vec_len (hw_if_indices) == 0)
283 pool_foreach (mif, mm->interfaces,
284 vec_add1 (hw_if_indices, mif->hw_if_index);
289 for (hw_if_index = 0; hw_if_index < vec_len (hw_if_indices); hw_if_index++)
291 vnet_hw_interface_t *hi =
292 vnet_get_hw_interface (vnm, hw_if_indices[hw_if_index]);
293 mif = pool_elt_at_index (mm->interfaces, hi->dev_instance);
294 memif_socket_file_t *msf = vec_elt_at_index (mm->socket_files,
295 mif->socket_file_index);
296 vlib_cli_output (vm, "interface %U", format_vnet_sw_if_index_name,
297 vnm, mif->sw_if_index);
298 if (mif->remote_name)
299 vlib_cli_output (vm, " remote-name \"%s\"", mif->remote_name);
300 if (mif->remote_if_name)
301 vlib_cli_output (vm, " remote-interface \"%s\"",
302 mif->remote_if_name);
303 vlib_cli_output (vm, " id %d mode %U file %s", mif->id,
304 format_memif_if_mode, mif, msf->filename);
305 vlib_cli_output (vm, " flags%U", format_memif_if_flags, mif->flags);
306 vlib_cli_output (vm, " listener-fd %d conn-fd %d", msf->fd,
309 " num-s2m-rings %u num-m2s-rings %u buffer-size %u",
310 mif->run.num_s2m_rings, mif->run.num_m2s_rings,
311 mif->run.buffer_size);
313 if (mif->local_disc_string)
314 vlib_cli_output (vm, " local-disc-reason \"%s\"",
315 mif->local_disc_string);
316 if (mif->remote_disc_string)
317 vlib_cli_output (vm, " remote-disc-reason \"%s\"",
318 mif->remote_disc_string);
320 vec_foreach_index (i, mif->tx_queues)
322 mq = vec_elt_at_index (mif->tx_queues, i);
323 vlib_cli_output (vm, " %U", format_memif_queue, mif, mq, i);
325 vlib_cli_output (vm, " %U", format_memif_descriptor, mif, mq);
327 vec_foreach_index (i, mif->rx_queues)
329 mq = vec_elt_at_index (mif->rx_queues, i);
330 vlib_cli_output (vm, " %U", format_memif_queue, mif, mq, i);
332 vlib_cli_output (vm, " %U", format_memif_descriptor, mif, mq);
336 vec_free (hw_if_indices);
341 VLIB_CLI_COMMAND (memif_show_command, static) = {
342 .path = "show memif",
343 .short_help = "show memif {<interface>] [descriptors]",
344 .function = memif_show_command_fn,
349 memif_cli_init (vlib_main_t * vm)
354 VLIB_INIT_FUNCTION (memif_cli_init);
357 * fd.io coding-style-patch-verification: ON
360 * eval: (c-set-style "gnu")