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>
21 #include <vlib/vlib.h>
22 #include <vlib/unix/unix.h>
23 #include <vnet/ethernet/ethernet.h>
25 #include <vnet/devices/netmap/net_netmap.h>
26 #include <vnet/devices/netmap/netmap.h>
29 netmap_create_command_fn (vlib_main_t * vm, unformat_input_t * input,
30 vlib_cli_command_t * cmd)
32 unformat_input_t _line_input, *line_input = &_line_input;
33 u8 *host_if_name = NULL;
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, "name %s", &host_if_name))
51 (line_input, "hw-addr %U", unformat_ethernet_address, hwaddr))
53 else if (unformat (line_input, "pipe"))
55 else if (unformat (line_input, "master"))
57 else if (unformat (line_input, "slave"))
60 return clib_error_return (0, "unknown input `%U'",
61 format_unformat_error, input);
63 unformat_free (line_input);
65 if (host_if_name == NULL)
66 return clib_error_return (0, "missing host interface name");
69 netmap_create_if (vm, host_if_name, hw_addr_ptr, is_pipe, is_master,
72 if (r == VNET_API_ERROR_SYSCALL_ERROR_1)
73 return clib_error_return (0, "%s (errno %d)", strerror (errno), errno);
75 if (r == VNET_API_ERROR_INVALID_INTERFACE)
76 return clib_error_return (0, "Invalid interface name");
78 if (r == VNET_API_ERROR_SUBIF_ALREADY_EXISTS)
79 return clib_error_return (0, "Interface already exists");
81 vlib_cli_output (vm, "%U\n", format_vnet_sw_if_index_name, vnet_get_main (),
87 * '<em>netmap</em>' is a framework for very fast packet I/O from userspace.
88 * '<em>VALE</em>' is an equally fast in-kernel software switch using the
89 * netmap API. '<em>netmap</em>' includes '<em>netmap pipes</em>', a shared
90 * memory packet transport channel. Together, they provide a high speed
91 * user-space interface that allows VPP to patch into a linux namespace, a
92 * linux container, or a physical NIC without the use of DPDK. Netmap/VALE
93 * generates the '<em>netmap.ko</em>' kernel module that needs to be loaded
94 * before netmap interfaces can be created.
95 * - https://github.com/luigirizzo/netmap - Netmap/VALE repo.
96 * - https://github.com/vpp-dev/netmap - VPP development package for Netmap/VALE,
97 * which is a snapshot of the Netmap/VALE repo with minor changes to work
98 * with containers and modified kernel drivers to work with NICs.
100 * Create a netmap interface that will attach to a linux interface.
101 * The interface must already exist. Once created, a new netmap interface
102 * will exist in VPP with the name '<em>netmap-<ifname></em>', where
103 * '<em><ifname></em>' takes one of two forms:
104 * - <b>ifname</b> - Linux interface to bind too.
105 * - <b>valeXXX:YYY</b> -
106 * - Where '<em>valeXXX</em>' is an arbitrary name for a VALE
107 * interface that must start with '<em>vale</em>' and is less
108 * than 16 characters.
109 * - Where '<em>YYY</em>' is an existing linux namespace.
111 * This command has the following optional parameters:
113 * - <b>hw-addr <mac-addr></b> - Optional ethernet address, can be in either
114 * X:X:X:X:X:X unix or X.X.X cisco format.
116 * - <b>pipe</b> - Optional flag to indicate that a '<em>netmap pipe</em>'
117 * instance should be created.
119 * - <b>master | slave</b> - Optional flag to indicate whether VPP should
120 * be the master or slave of the '<em>netmap pipe</em>'. Only considered
121 * if '<em>pipe</em>' is entered. Defaults to '<em>slave</em>' if not entered.
124 * Example of how to create a netmap interface tied to the linux
125 * namespace '<em>vpp1</em>':
126 * @cliexstart{create netmap name vale00:vpp1 hw-addr 02:FE:3F:34:15:9B pipe master}
129 * Once the netmap interface is created, enable the interface using:
130 * @cliexcmd{set interface state netmap-vale00:vpp1 up}
133 VLIB_CLI_COMMAND (netmap_create_command, static) = {
134 .path = "create netmap",
135 .short_help = "create netmap name <ifname>|valeXXX:YYY "
136 "[hw-addr <mac-addr>] [pipe] [master|slave]",
137 .function = netmap_create_command_fn,
141 static clib_error_t *
142 netmap_delete_command_fn (vlib_main_t * vm, unformat_input_t * input,
143 vlib_cli_command_t * cmd)
145 unformat_input_t _line_input, *line_input = &_line_input;
146 u8 *host_if_name = NULL;
148 /* Get a line of input. */
149 if (!unformat_user (input, unformat_line_input, line_input))
152 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
154 if (unformat (line_input, "name %s", &host_if_name))
157 return clib_error_return (0, "unknown input `%U'",
158 format_unformat_error, input);
160 unformat_free (line_input);
162 if (host_if_name == NULL)
163 return clib_error_return (0, "missing host interface name");
165 netmap_delete_if (vm, host_if_name);
171 * Delete a netmap interface. Use the '<em><ifname></em>' to identify
172 * the netmap interface to be deleted. In VPP, netmap interfaces are
173 * named as '<em>netmap-<ifname></em>', where '<em><ifname></em>'
174 * takes one of two forms:
175 * - <b>ifname</b> - Linux interface to bind too.
176 * - <b>valeXXX:YYY</b> -
177 * - Where '<em>valeXXX</em>' is an arbitrary name for a VALE
178 * interface that must start with '<em>vale</em>' and is less
179 * than 16 characters.
180 * - Where '<em>YYY</em>' is an existing linux namespace.
183 * Example of how to delete a netmap interface named '<em>netmap-vale00:vpp1</em>':
184 * @cliexcmd{delete netmap name vale00:vpp1}
187 VLIB_CLI_COMMAND (netmap_delete_command, static) = {
188 .path = "delete netmap",
189 .short_help = "delete netmap name <ifname>|valeXXX:YYY",
190 .function = netmap_delete_command_fn,
195 netmap_cli_init (vlib_main_t * vm)
200 VLIB_INIT_FUNCTION (netmap_cli_init);
203 * fd.io coding-style-patch-verification: ON
206 * eval: (c-set-style "gnu")