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1# SPDX-License-Identifier: GPL-2.0-only
2#
3# Network device configuration
4#
5
6menuconfig NETDEVICES
7 default y if UML
8 depends on NET
9 bool "Network device support"
10 help
11 You can say N here if you don't intend to connect your Linux box to
12 any other computer at all.
13
14 You'll have to say Y if your computer contains a network card that
15 you want to use under Linux. If you are going to run SLIP or PPP over
16 telephone line or null modem cable you need say Y here. Connecting
17 two machines with parallel ports using PLIP needs this, as well as
18 AX.25/KISS for sending Internet traffic over amateur radio links.
19
20 See also "The Linux Network Administrator's Guide" by Olaf Kirch and
21 Terry Dawson. Available at <http://www.tldp.org/guides.html>.
22
23 If unsure, say Y.
24
25# All the following symbols are dependent on NETDEVICES - do not repeat
26# that for each of the symbols.
27if NETDEVICES
28
29config MII
30 tristate
31
32config NET_CORE
33 default y
34 bool "Network core driver support"
35 help
36 You can say N here if you do not intend to use any of the
37 networking core drivers (i.e. VLAN, bridging, bonding, etc.)
38
39if NET_CORE
40
41config BONDING
42 tristate "Bonding driver support"
43 depends on INET
44 depends on IPV6 || IPV6=n
45 depends on TLS || TLS_DEVICE=n
46 help
47 Say 'Y' or 'M' if you wish to be able to 'bond' multiple Ethernet
48 Channels together. This is called 'Etherchannel' by Cisco,
49 'Trunking' by Sun, 802.3ad by the IEEE, and 'Bonding' in Linux.
50
51 The driver supports multiple bonding modes to allow for both high
52 performance and high availability operation.
53
54 Refer to <file:Documentation/networking/bonding.rst> for more
55 information.
56
57 To compile this driver as a module, choose M here: the module
58 will be called bonding.
59
60config DUMMY
61 tristate "Dummy net driver support"
62 help
63 This is essentially a bit-bucket device (i.e. traffic you send to
64 this device is consigned into oblivion) with a configurable IP
65 address. It is most commonly used in order to make your currently
66 inactive SLIP address seem like a real address for local programs.
67 If you use SLIP or PPP, you might want to say Y here. It won't
68 enlarge your kernel. What a deal. Read about it in the Network
69 Administrator's Guide, available from
70 <http://www.tldp.org/docs.html#guide>.
71
72 To compile this driver as a module, choose M here: the module
73 will be called dummy.
74
75config WIREGUARD
76 tristate "WireGuard secure network tunnel"
77 depends on NET && INET
78 depends on IPV6 || !IPV6
79 depends on !KMSAN # KMSAN doesn't support the crypto configs below
80 select NET_UDP_TUNNEL
81 select DST_CACHE
82 select CRYPTO
83 select CRYPTO_LIB_CURVE25519
84 select CRYPTO_LIB_CHACHA20POLY1305
85 select CRYPTO_CHACHA20_X86_64 if X86 && 64BIT
86 select CRYPTO_POLY1305_X86_64 if X86 && 64BIT
87 select CRYPTO_BLAKE2S_X86 if X86 && 64BIT
88 select CRYPTO_CURVE25519_X86 if X86 && 64BIT
89 select CRYPTO_CHACHA20_NEON if ARM || (ARM64 && KERNEL_MODE_NEON)
90 select CRYPTO_POLY1305_NEON if ARM64 && KERNEL_MODE_NEON
91 select CRYPTO_POLY1305_ARM if ARM
92 select CRYPTO_BLAKE2S_ARM if ARM
93 select CRYPTO_CURVE25519_NEON if ARM && KERNEL_MODE_NEON
94 select CRYPTO_CHACHA_MIPS if CPU_MIPS32_R2
95 select CRYPTO_POLY1305_MIPS if MIPS
96 select CRYPTO_CHACHA_S390 if S390
97 help
98 WireGuard is a secure, fast, and easy to use replacement for IPSec
99 that uses modern cryptography and clever networking tricks. It's
100 designed to be fairly general purpose and abstract enough to fit most
101 use cases, while at the same time remaining extremely simple to
102 configure. See www.wireguard.com for more info.
103
104 It's safe to say Y or M here, as the driver is very lightweight and
105 is only in use when an administrator chooses to add an interface.
106
107config WIREGUARD_DEBUG
108 bool "Debugging checks and verbose messages"
109 depends on WIREGUARD
110 help
111 This will write log messages for handshake and other events
112 that occur for a WireGuard interface. It will also perform some
113 extra validation checks and unit tests at various points. This is
114 only useful for debugging.
115
116 Say N here unless you know what you're doing.
117
118config EQUALIZER
119 tristate "EQL (serial line load balancing) support"
120 help
121 If you have two serial connections to some other computer (this
122 usually requires two modems and two telephone lines) and you use
123 SLIP (the protocol for sending Internet traffic over telephone
124 lines) or PPP (a better SLIP) on them, you can make them behave like
125 one double speed connection using this driver. Naturally, this has
126 to be supported at the other end as well, either with a similar EQL
127 Linux driver or with a Livingston Portmaster 2e.
128
129 Say Y if you want this and read
130 <file:Documentation/networking/eql.rst>. You may also want to read
131 section 6.2 of the NET-3-HOWTO, available from
132 <http://www.tldp.org/docs.html#howto>.
133
134 To compile this driver as a module, choose M here: the module
135 will be called eql. If unsure, say N.
136
137config NET_FC
138 bool "Fibre Channel driver support"
139 depends on SCSI && PCI
140 help
141 Fibre Channel is a high speed serial protocol mainly used to connect
142 large storage devices to the computer; it is compatible with and
143 intended to replace SCSI.
144
145 If you intend to use Fibre Channel, you need to have a Fibre channel
146 adaptor card in your computer; say Y here and to the driver for your
147 adaptor below. You also should have said Y to "SCSI support" and
148 "SCSI generic support".
149
150config IFB
151 tristate "Intermediate Functional Block support"
152 depends on NET_ACT_MIRRED || NFT_FWD_NETDEV
153 select NET_REDIRECT
154 help
155 This is an intermediate driver that allows sharing of
156 resources.
157 To compile this driver as a module, choose M here: the module
158 will be called ifb. If you want to use more than one ifb
159 device at a time, you need to compile this driver as a module.
160 Instead of 'ifb', the devices will then be called 'ifb0',
161 'ifb1' etc.
162 Look at the iproute2 documentation directory for usage etc
163
164source "drivers/net/team/Kconfig"
165
166config MACVLAN
167 tristate "MAC-VLAN support"
168 help
169 This allows one to create virtual interfaces that map packets to
170 or from specific MAC addresses to a particular interface.
171
172 Macvlan devices can be added using the "ip" command from the
173 iproute2 package starting with the iproute2-2.6.23 release:
174
175 "ip link add link <real dev> [ address MAC ] [ NAME ] type macvlan"
176
177 To compile this driver as a module, choose M here: the module
178 will be called macvlan.
179
180config MACVTAP
181 tristate "MAC-VLAN based tap driver"
182 depends on MACVLAN
183 depends on INET
184 select TAP
185 help
186 This adds a specialized tap character device driver that is based
187 on the MAC-VLAN network interface, called macvtap. A macvtap device
188 can be added in the same way as a macvlan device, using 'type
189 macvtap', and then be accessed through the tap user space interface.
190
191 To compile this driver as a module, choose M here: the module
192 will be called macvtap.
193
194config IPVLAN_L3S
195 depends on NETFILTER
196 depends on IPVLAN
197 def_bool y
198 select NET_L3_MASTER_DEV
199
200config IPVLAN
201 tristate "IP-VLAN support"
202 depends on INET
203 depends on IPV6 || !IPV6
204 help
205 This allows one to create virtual devices off of a main interface
206 and packets will be delivered based on the dest L3 (IPv6/IPv4 addr)
207 on packets. All interfaces (including the main interface) share L2
208 making it transparent to the connected L2 switch.
209
210 Ipvlan devices can be added using the "ip" command from the
211 iproute2 package starting with the iproute2-3.19 release:
212
213 "ip link add link <main-dev> [ NAME ] type ipvlan"
214
215 To compile this driver as a module, choose M here: the module
216 will be called ipvlan.
217
218config IPVTAP
219 tristate "IP-VLAN based tap driver"
220 depends on IPVLAN
221 depends on INET
222 select TAP
223 help
224 This adds a specialized tap character device driver that is based
225 on the IP-VLAN network interface, called ipvtap. An ipvtap device
226 can be added in the same way as a ipvlan device, using 'type
227 ipvtap', and then be accessed through the tap user space interface.
228
229 To compile this driver as a module, choose M here: the module
230 will be called ipvtap.
231
232config VXLAN
233 tristate "Virtual eXtensible Local Area Network (VXLAN)"
234 depends on INET
235 select NET_UDP_TUNNEL
236 select GRO_CELLS
237 help
238 This allows one to create vxlan virtual interfaces that provide
239 Layer 2 Networks over Layer 3 Networks. VXLAN is often used
240 to tunnel virtual network infrastructure in virtualized environments.
241 For more information see:
242 http://tools.ietf.org/html/draft-mahalingam-dutt-dcops-vxlan-02
243
244 To compile this driver as a module, choose M here: the module
245 will be called vxlan.
246
247config GENEVE
248 tristate "Generic Network Virtualization Encapsulation"
249 depends on INET
250 depends on IPV6 || !IPV6
251 select NET_UDP_TUNNEL
252 select GRO_CELLS
253 help
254 This allows one to create geneve virtual interfaces that provide
255 Layer 2 Networks over Layer 3 Networks. GENEVE is often used
256 to tunnel virtual network infrastructure in virtualized environments.
257 For more information see:
258 http://tools.ietf.org/html/draft-gross-geneve-02
259
260 To compile this driver as a module, choose M here: the module
261 will be called geneve.
262
263config BAREUDP
264 tristate "Bare UDP Encapsulation"
265 depends on INET
266 depends on IPV6 || !IPV6
267 select NET_UDP_TUNNEL
268 select GRO_CELLS
269 help
270 This adds a bare UDP tunnel module for tunnelling different
271 kinds of traffic like MPLS, IP, etc. inside a UDP tunnel.
272
273 To compile this driver as a module, choose M here: the module
274 will be called bareudp.
275
276config GTP
277 tristate "GPRS Tunneling Protocol datapath (GTP-U)"
278 depends on INET
279 select NET_UDP_TUNNEL
280 help
281 This allows one to create gtp virtual interfaces that provide
282 the GPRS Tunneling Protocol datapath (GTP-U). This tunneling protocol
283 is used to prevent subscribers from accessing mobile carrier core
284 network infrastructure. This driver requires a userspace software that
285 implements the signaling protocol (GTP-C) to update its PDP context
286 base, such as OpenGGSN <http://git.osmocom.org/openggsn/). This
287 tunneling protocol is implemented according to the GSM TS 09.60 and
288 3GPP TS 29.060 standards.
289
290 To compile this drivers as a module, choose M here: the module
291 will be called gtp.
292
293config AMT
294 tristate "Automatic Multicast Tunneling (AMT)"
295 depends on INET && IP_MULTICAST
296 depends on IPV6 || !IPV6
297 select NET_UDP_TUNNEL
298 help
299 This allows one to create AMT(Automatic Multicast Tunneling)
300 virtual interfaces that provide multicast tunneling.
301 There are two roles, Gateway, and Relay.
302 Gateway Encapsulates IGMP/MLD traffic from listeners to the Relay.
303 Gateway Decapsulates multicast traffic from the Relay to Listeners.
304 Relay Encapsulates multicast traffic from Sources to Gateway.
305 Relay Decapsulates IGMP/MLD traffic from Gateway.
306
307 To compile this drivers as a module, choose M here: the module
308 will be called amt.
309
310config MACSEC
311 tristate "IEEE 802.1AE MAC-level encryption (MACsec)"
312 select CRYPTO
313 select CRYPTO_AES
314 select CRYPTO_GCM
315 select GRO_CELLS
316 help
317 MACsec is an encryption standard for Ethernet.
318
319config NETCONSOLE
320 tristate "Network console logging support"
321 help
322 If you want to log kernel messages over the network, enable this.
323 See <file:Documentation/networking/netconsole.rst> for details.
324
325config NETCONSOLE_DYNAMIC
326 bool "Dynamic reconfiguration of logging targets"
327 depends on NETCONSOLE && SYSFS && CONFIGFS_FS && \
328 !(NETCONSOLE=y && CONFIGFS_FS=m)
329 help
330 This option enables the ability to dynamically reconfigure target
331 parameters (interface, IP addresses, port numbers, MAC addresses)
332 at runtime through a userspace interface exported using configfs.
333 See <file:Documentation/networking/netconsole.rst> for details.
334
335config NETCONSOLE_EXTENDED_LOG
336 bool "Set kernel extended message by default"
337 depends on NETCONSOLE
338 default n
339 help
340 Set extended log support for netconsole message. If this option is
341 set, log messages are transmitted with extended metadata header in a
342 format similar to /dev/kmsg. See
343 <file:Documentation/networking/netconsole.rst> for details.
344
345config NETCONSOLE_PREPEND_RELEASE
346 bool "Prepend kernel release version in the message by default"
347 depends on NETCONSOLE_EXTENDED_LOG
348 default n
349 help
350 Set kernel release to be prepended to each netconsole message by
351 default. If this option is set, the kernel release is prepended into
352 the first field of every netconsole message, so, the netconsole
353 server/peer can easily identify what kernel release is logging each
354 message. See <file:Documentation/networking/netconsole.rst> for
355 details.
356
357config NETPOLL
358 def_bool NETCONSOLE
359
360config NET_POLL_CONTROLLER
361 def_bool NETPOLL
362
363config NTB_NETDEV
364 tristate "Virtual Ethernet over NTB Transport"
365 depends on NTB_TRANSPORT
366
367config RIONET
368 tristate "RapidIO Ethernet over messaging driver support"
369 depends on RAPIDIO
370
371config RIONET_TX_SIZE
372 int "Number of outbound queue entries"
373 depends on RIONET
374 default "128"
375
376config RIONET_RX_SIZE
377 int "Number of inbound queue entries"
378 depends on RIONET
379 default "128"
380
381config TUN
382 tristate "Universal TUN/TAP device driver support"
383 depends on INET
384 select CRC32
385 help
386 TUN/TAP provides packet reception and transmission for user space
387 programs. It can be viewed as a simple Point-to-Point or Ethernet
388 device, which instead of receiving packets from a physical media,
389 receives them from user space program and instead of sending packets
390 via physical media writes them to the user space program.
391
392 When a program opens /dev/net/tun, driver creates and registers
393 corresponding net device tunX or tapX. After a program closed above
394 devices, driver will automatically delete tunXX or tapXX device and
395 all routes corresponding to it.
396
397 Please read <file:Documentation/networking/tuntap.rst> for more
398 information.
399
400 To compile this driver as a module, choose M here: the module
401 will be called tun.
402
403 If you don't know what to use this for, you don't need it.
404
405config TAP
406 tristate
407 help
408 This option is selected by any driver implementing tap user space
409 interface for a virtual interface to re-use core tap functionality.
410
411config TUN_VNET_CROSS_LE
412 bool "Support for cross-endian vnet headers on little-endian kernels"
413 default n
414 help
415 This option allows TUN/TAP and MACVTAP device drivers in a
416 little-endian kernel to parse vnet headers that come from a
417 big-endian legacy virtio device.
418
419 Userspace programs can control the feature using the TUNSETVNETBE
420 and TUNGETVNETBE ioctls.
421
422 Unless you have a little-endian system hosting a big-endian virtual
423 machine with a legacy virtio NIC, you should say N.
424
425config VETH
426 tristate "Virtual ethernet pair device"
427 select PAGE_POOL
428 help
429 This device is a local ethernet tunnel. Devices are created in pairs.
430 When one end receives the packet it appears on its pair and vice
431 versa.
432
433config VIRTIO_NET
434 tristate "Virtio network driver"
435 depends on VIRTIO
436 select NET_FAILOVER
437 select DIMLIB
438 help
439 This is the virtual network driver for virtio. It can be used with
440 QEMU based VMMs (like KVM or Xen). Say Y or M.
441
442config NLMON
443 tristate "Virtual netlink monitoring device"
444 help
445 This option enables a monitoring net device for netlink skbs. The
446 purpose of this is to analyze netlink messages with packet sockets.
447 Thus applications like tcpdump will be able to see local netlink
448 messages if they tap into the netlink device, record pcaps for further
449 diagnostics, etc. This is mostly intended for developers or support
450 to debug netlink issues. If unsure, say N.
451
452config NETKIT
453 bool "BPF-programmable network device"
454 depends on BPF_SYSCALL
455 help
456 The netkit device is a virtual networking device where BPF programs
457 can be attached to the device(s) transmission routine in order to
458 implement the driver's internal logic. The device can be configured
459 to operate in L3 or L2 mode. If unsure, say N.
460
461config NET_VRF
462 tristate "Virtual Routing and Forwarding (Lite)"
463 depends on IP_MULTIPLE_TABLES
464 depends on NET_L3_MASTER_DEV
465 depends on IPV6 || IPV6=n
466 depends on IPV6_MULTIPLE_TABLES || IPV6=n
467 help
468 This option enables the support for mapping interfaces into VRF's. The
469 support enables VRF devices.
470
471config VSOCKMON
472 tristate "Virtual vsock monitoring device"
473 depends on VHOST_VSOCK
474 help
475 This option enables a monitoring net device for vsock sockets. It is
476 mostly intended for developers or support to debug vsock issues. If
477 unsure, say N.
478
479config MHI_NET
480 tristate "MHI network driver"
481 depends on MHI_BUS
482 help
483 This is the network driver for MHI bus. It can be used with
484 QCOM based WWAN modems for IP or QMAP/rmnet protocol (like SDX55).
485 Say Y or M.
486
487endif # NET_CORE
488
489config SUNGEM_PHY
490 tristate
491
492source "drivers/net/arcnet/Kconfig"
493
494source "drivers/atm/Kconfig"
495
496source "drivers/net/caif/Kconfig"
497
498source "drivers/net/dsa/Kconfig"
499
500source "drivers/net/ethernet/Kconfig"
501
502source "drivers/net/fddi/Kconfig"
503
504source "drivers/net/hippi/Kconfig"
505
506source "drivers/net/ipa/Kconfig"
507
508config NET_SB1000
509 tristate "General Instruments Surfboard 1000"
510 depends on PNP
511 help
512 This is a driver for the General Instrument (also known as
513 NextLevel) SURFboard 1000 internal
514 cable modem. This is an ISA card which is used by a number of cable
515 TV companies to provide cable modem access. It's a one-way
516 downstream-only cable modem, meaning that your upstream net link is
517 provided by your regular phone modem.
518
519 At present this driver only compiles as a module, so say M here if
520 you have this card. The module will be called sb1000. Then read
521 <file:Documentation/networking/device_drivers/cable/sb1000.rst> for
522 information on how to use this module, as it needs special ppp
523 scripts for establishing a connection. Further documentation
524 and the necessary scripts can be found at:
525
526 <http://www.jacksonville.net/~fventuri/>
527 <http://home.adelphia.net/~siglercm/sb1000.html>
528 <http://linuxpower.cx/~cable/>
529
530 If you don't have this card, of course say N.
531
532source "drivers/net/phy/Kconfig"
533
534source "drivers/net/pse-pd/Kconfig"
535
536source "drivers/net/can/Kconfig"
537
538source "drivers/net/mctp/Kconfig"
539
540source "drivers/net/mdio/Kconfig"
541
542source "drivers/net/pcs/Kconfig"
543
544source "drivers/net/plip/Kconfig"
545
546source "drivers/net/ppp/Kconfig"
547
548source "drivers/net/slip/Kconfig"
549
550source "drivers/s390/net/Kconfig"
551
552source "drivers/net/usb/Kconfig"
553
554source "drivers/net/wireless/Kconfig"
555
556source "drivers/net/wan/Kconfig"
557
558source "drivers/net/ieee802154/Kconfig"
559
560source "drivers/net/wwan/Kconfig"
561
562config XEN_NETDEV_FRONTEND
563 tristate "Xen network device frontend driver"
564 depends on XEN
565 select XEN_XENBUS_FRONTEND
566 select PAGE_POOL
567 default y
568 help
569 This driver provides support for Xen paravirtual network
570 devices exported by a Xen network driver domain (often
571 domain 0).
572
573 The corresponding Linux backend driver is enabled by the
574 CONFIG_XEN_NETDEV_BACKEND option.
575
576 If you are compiling a kernel for use as Xen guest, you
577 should say Y here. To compile this driver as a module, chose
578 M here: the module will be called xen-netfront.
579
580config XEN_NETDEV_BACKEND
581 tristate "Xen backend network device"
582 depends on XEN_BACKEND
583 help
584 This driver allows the kernel to act as a Xen network driver
585 domain which exports paravirtual network devices to other
586 Xen domains. These devices can be accessed by any operating
587 system that implements a compatible front end.
588
589 The corresponding Linux frontend driver is enabled by the
590 CONFIG_XEN_NETDEV_FRONTEND configuration option.
591
592 The backend driver presents a standard network device
593 endpoint for each paravirtual network device to the driver
594 domain network stack. These can then be bridged or routed
595 etc in order to provide full network connectivity.
596
597 If you are compiling a kernel to run in a Xen network driver
598 domain (often this is domain 0) you should say Y here. To
599 compile this driver as a module, chose M here: the module
600 will be called xen-netback.
601
602config VMXNET3
603 tristate "VMware VMXNET3 ethernet driver"
604 depends on PCI && INET
605 depends on PAGE_SIZE_LESS_THAN_64KB
606 select PAGE_POOL
607 help
608 This driver supports VMware's vmxnet3 virtual ethernet NIC.
609 To compile this driver as a module, choose M here: the
610 module will be called vmxnet3.
611
612config FUJITSU_ES
613 tristate "FUJITSU Extended Socket Network Device driver"
614 depends on ACPI
615 help
616 This driver provides support for Extended Socket network device
617 on Extended Partitioning of FUJITSU PRIMEQUEST 2000 E2 series.
618
619source "drivers/net/thunderbolt/Kconfig"
620source "drivers/net/hyperv/Kconfig"
621
622config NETDEVSIM
623 tristate "Simulated networking device"
624 depends on DEBUG_FS
625 depends on INET
626 depends on IPV6 || IPV6=n
627 depends on PSAMPLE || PSAMPLE=n
628 depends on PTP_1588_CLOCK_MOCK || PTP_1588_CLOCK_MOCK=n
629 select NET_DEVLINK
630 help
631 This driver is a developer testing tool and software model that can
632 be used to test various control path networking APIs, especially
633 HW-offload related.
634
635 To compile this driver as a module, choose M here: the module
636 will be called netdevsim.
637
638config NET_FAILOVER
639 tristate "Failover driver"
640 select FAILOVER
641 help
642 This provides an automated failover mechanism via APIs to create
643 and destroy a failover master netdev and manages a primary and
644 standby slave netdevs that get registered via the generic failover
645 infrastructure. This can be used by paravirtual drivers to enable
646 an alternate low latency datapath. It also enables live migration of
647 a VM with direct attached VF by failing over to the paravirtual
648 datapath when the VF is unplugged.
649
650config NETDEV_LEGACY_INIT
651 bool
652 depends on ISA
653 help
654 Drivers that call netdev_boot_setup_check() should select this
655 symbol, everything else no longer needs it.
656
657endif # NETDEVICES
1# SPDX-License-Identifier: GPL-2.0-only
2#
3# Network device configuration
4#
5
6menuconfig NETDEVICES
7 default y if UML
8 depends on NET
9 bool "Network device support"
10 help
11 You can say N here if you don't intend to connect your Linux box to
12 any other computer at all.
13
14 You'll have to say Y if your computer contains a network card that
15 you want to use under Linux. If you are going to run SLIP or PPP over
16 telephone line or null modem cable you need say Y here. Connecting
17 two machines with parallel ports using PLIP needs this, as well as
18 AX.25/KISS for sending Internet traffic over amateur radio links.
19
20 See also "The Linux Network Administrator's Guide" by Olaf Kirch and
21 Terry Dawson. Available at <http://www.tldp.org/guides.html>.
22
23 If unsure, say Y.
24
25# All the following symbols are dependent on NETDEVICES - do not repeat
26# that for each of the symbols.
27if NETDEVICES
28
29config MII
30 tristate
31
32config NET_CORE
33 default y
34 bool "Network core driver support"
35 help
36 You can say N here if you do not intend to use any of the
37 networking core drivers (i.e. VLAN, bridging, bonding, etc.)
38
39if NET_CORE
40
41config BONDING
42 tristate "Bonding driver support"
43 depends on INET
44 depends on IPV6 || IPV6=n
45 help
46 Say 'Y' or 'M' if you wish to be able to 'bond' multiple Ethernet
47 Channels together. This is called 'Etherchannel' by Cisco,
48 'Trunking' by Sun, 802.3ad by the IEEE, and 'Bonding' in Linux.
49
50 The driver supports multiple bonding modes to allow for both high
51 performance and high availability operation.
52
53 Refer to <file:Documentation/networking/bonding.rst> for more
54 information.
55
56 To compile this driver as a module, choose M here: the module
57 will be called bonding.
58
59config DUMMY
60 tristate "Dummy net driver support"
61 help
62 This is essentially a bit-bucket device (i.e. traffic you send to
63 this device is consigned into oblivion) with a configurable IP
64 address. It is most commonly used in order to make your currently
65 inactive SLIP address seem like a real address for local programs.
66 If you use SLIP or PPP, you might want to say Y here. It won't
67 enlarge your kernel. What a deal. Read about it in the Network
68 Administrator's Guide, available from
69 <http://www.tldp.org/docs.html#guide>.
70
71 To compile this driver as a module, choose M here: the module
72 will be called dummy.
73
74config WIREGUARD
75 tristate "WireGuard secure network tunnel"
76 depends on NET && INET
77 depends on IPV6 || !IPV6
78 select NET_UDP_TUNNEL
79 select DST_CACHE
80 select CRYPTO
81 select CRYPTO_LIB_CURVE25519
82 select CRYPTO_LIB_CHACHA20POLY1305
83 select CRYPTO_LIB_BLAKE2S
84 select CRYPTO_CHACHA20_X86_64 if X86 && 64BIT
85 select CRYPTO_POLY1305_X86_64 if X86 && 64BIT
86 select CRYPTO_BLAKE2S_X86 if X86 && 64BIT
87 select CRYPTO_CURVE25519_X86 if X86 && 64BIT
88 select ARM_CRYPTO if ARM
89 select ARM64_CRYPTO if ARM64
90 select CRYPTO_CHACHA20_NEON if (ARM || ARM64) && KERNEL_MODE_NEON
91 select CRYPTO_POLY1305_NEON if ARM64 && KERNEL_MODE_NEON
92 select CRYPTO_POLY1305_ARM if ARM
93 select CRYPTO_CURVE25519_NEON if ARM && KERNEL_MODE_NEON
94 select CRYPTO_CHACHA_MIPS if CPU_MIPS32_R2
95 select CRYPTO_POLY1305_MIPS if CPU_MIPS32 || (CPU_MIPS64 && 64BIT)
96 help
97 WireGuard is a secure, fast, and easy to use replacement for IPSec
98 that uses modern cryptography and clever networking tricks. It's
99 designed to be fairly general purpose and abstract enough to fit most
100 use cases, while at the same time remaining extremely simple to
101 configure. See www.wireguard.com for more info.
102
103 It's safe to say Y or M here, as the driver is very lightweight and
104 is only in use when an administrator chooses to add an interface.
105
106config WIREGUARD_DEBUG
107 bool "Debugging checks and verbose messages"
108 depends on WIREGUARD
109 help
110 This will write log messages for handshake and other events
111 that occur for a WireGuard interface. It will also perform some
112 extra validation checks and unit tests at various points. This is
113 only useful for debugging.
114
115 Say N here unless you know what you're doing.
116
117config EQUALIZER
118 tristate "EQL (serial line load balancing) support"
119 help
120 If you have two serial connections to some other computer (this
121 usually requires two modems and two telephone lines) and you use
122 SLIP (the protocol for sending Internet traffic over telephone
123 lines) or PPP (a better SLIP) on them, you can make them behave like
124 one double speed connection using this driver. Naturally, this has
125 to be supported at the other end as well, either with a similar EQL
126 Linux driver or with a Livingston Portmaster 2e.
127
128 Say Y if you want this and read
129 <file:Documentation/networking/eql.rst>. You may also want to read
130 section 6.2 of the NET-3-HOWTO, available from
131 <http://www.tldp.org/docs.html#howto>.
132
133 To compile this driver as a module, choose M here: the module
134 will be called eql. If unsure, say N.
135
136config NET_FC
137 bool "Fibre Channel driver support"
138 depends on SCSI && PCI
139 help
140 Fibre Channel is a high speed serial protocol mainly used to connect
141 large storage devices to the computer; it is compatible with and
142 intended to replace SCSI.
143
144 If you intend to use Fibre Channel, you need to have a Fibre channel
145 adaptor card in your computer; say Y here and to the driver for your
146 adaptor below. You also should have said Y to "SCSI support" and
147 "SCSI generic support".
148
149config IFB
150 tristate "Intermediate Functional Block support"
151 depends on NET_CLS_ACT
152 select NET_REDIRECT
153 help
154 This is an intermediate driver that allows sharing of
155 resources.
156 To compile this driver as a module, choose M here: the module
157 will be called ifb. If you want to use more than one ifb
158 device at a time, you need to compile this driver as a module.
159 Instead of 'ifb', the devices will then be called 'ifb0',
160 'ifb1' etc.
161 Look at the iproute2 documentation directory for usage etc
162
163source "drivers/net/team/Kconfig"
164
165config MACVLAN
166 tristate "MAC-VLAN support"
167 help
168 This allows one to create virtual interfaces that map packets to
169 or from specific MAC addresses to a particular interface.
170
171 Macvlan devices can be added using the "ip" command from the
172 iproute2 package starting with the iproute2-2.6.23 release:
173
174 "ip link add link <real dev> [ address MAC ] [ NAME ] type macvlan"
175
176 To compile this driver as a module, choose M here: the module
177 will be called macvlan.
178
179config MACVTAP
180 tristate "MAC-VLAN based tap driver"
181 depends on MACVLAN
182 depends on INET
183 select TAP
184 help
185 This adds a specialized tap character device driver that is based
186 on the MAC-VLAN network interface, called macvtap. A macvtap device
187 can be added in the same way as a macvlan device, using 'type
188 macvtap', and then be accessed through the tap user space interface.
189
190 To compile this driver as a module, choose M here: the module
191 will be called macvtap.
192
193config IPVLAN_L3S
194 depends on NETFILTER
195 depends on IPVLAN
196 def_bool y
197 select NET_L3_MASTER_DEV
198
199config IPVLAN
200 tristate "IP-VLAN support"
201 depends on INET
202 depends on IPV6 || !IPV6
203 help
204 This allows one to create virtual devices off of a main interface
205 and packets will be delivered based on the dest L3 (IPv6/IPv4 addr)
206 on packets. All interfaces (including the main interface) share L2
207 making it transparent to the connected L2 switch.
208
209 Ipvlan devices can be added using the "ip" command from the
210 iproute2 package starting with the iproute2-3.19 release:
211
212 "ip link add link <main-dev> [ NAME ] type ipvlan"
213
214 To compile this driver as a module, choose M here: the module
215 will be called ipvlan.
216
217config IPVTAP
218 tristate "IP-VLAN based tap driver"
219 depends on IPVLAN
220 depends on INET
221 select TAP
222 help
223 This adds a specialized tap character device driver that is based
224 on the IP-VLAN network interface, called ipvtap. An ipvtap device
225 can be added in the same way as a ipvlan device, using 'type
226 ipvtap', and then be accessed through the tap user space interface.
227
228 To compile this driver as a module, choose M here: the module
229 will be called ipvtap.
230
231config VXLAN
232 tristate "Virtual eXtensible Local Area Network (VXLAN)"
233 depends on INET
234 select NET_UDP_TUNNEL
235 select GRO_CELLS
236 help
237 This allows one to create vxlan virtual interfaces that provide
238 Layer 2 Networks over Layer 3 Networks. VXLAN is often used
239 to tunnel virtual network infrastructure in virtualized environments.
240 For more information see:
241 http://tools.ietf.org/html/draft-mahalingam-dutt-dcops-vxlan-02
242
243 To compile this driver as a module, choose M here: the module
244 will be called vxlan.
245
246config GENEVE
247 tristate "Generic Network Virtualization Encapsulation"
248 depends on INET
249 depends on IPV6 || !IPV6
250 select NET_UDP_TUNNEL
251 select GRO_CELLS
252 help
253 This allows one to create geneve virtual interfaces that provide
254 Layer 2 Networks over Layer 3 Networks. GENEVE is often used
255 to tunnel virtual network infrastructure in virtualized environments.
256 For more information see:
257 http://tools.ietf.org/html/draft-gross-geneve-02
258
259 To compile this driver as a module, choose M here: the module
260 will be called geneve.
261
262config BAREUDP
263 tristate "Bare UDP Encapsulation"
264 depends on INET
265 depends on IPV6 || !IPV6
266 select NET_UDP_TUNNEL
267 select GRO_CELLS
268 help
269 This adds a bare UDP tunnel module for tunnelling different
270 kinds of traffic like MPLS, IP, etc. inside a UDP tunnel.
271
272 To compile this driver as a module, choose M here: the module
273 will be called bareudp.
274
275config GTP
276 tristate "GPRS Tunneling Protocol datapath (GTP-U)"
277 depends on INET
278 select NET_UDP_TUNNEL
279 help
280 This allows one to create gtp virtual interfaces that provide
281 the GPRS Tunneling Protocol datapath (GTP-U). This tunneling protocol
282 is used to prevent subscribers from accessing mobile carrier core
283 network infrastructure. This driver requires a userspace software that
284 implements the signaling protocol (GTP-C) to update its PDP context
285 base, such as OpenGGSN <http://git.osmocom.org/openggsn/). This
286 tunneling protocol is implemented according to the GSM TS 09.60 and
287 3GPP TS 29.060 standards.
288
289 To compile this drivers as a module, choose M here: the module
290 wil be called gtp.
291
292config MACSEC
293 tristate "IEEE 802.1AE MAC-level encryption (MACsec)"
294 select CRYPTO
295 select CRYPTO_AES
296 select CRYPTO_GCM
297 select GRO_CELLS
298 help
299 MACsec is an encryption standard for Ethernet.
300
301config NETCONSOLE
302 tristate "Network console logging support"
303 help
304 If you want to log kernel messages over the network, enable this.
305 See <file:Documentation/networking/netconsole.rst> for details.
306
307config NETCONSOLE_DYNAMIC
308 bool "Dynamic reconfiguration of logging targets"
309 depends on NETCONSOLE && SYSFS && CONFIGFS_FS && \
310 !(NETCONSOLE=y && CONFIGFS_FS=m)
311 help
312 This option enables the ability to dynamically reconfigure target
313 parameters (interface, IP addresses, port numbers, MAC addresses)
314 at runtime through a userspace interface exported using configfs.
315 See <file:Documentation/networking/netconsole.rst> for details.
316
317config NETPOLL
318 def_bool NETCONSOLE
319 select SRCU
320
321config NET_POLL_CONTROLLER
322 def_bool NETPOLL
323
324config NTB_NETDEV
325 tristate "Virtual Ethernet over NTB Transport"
326 depends on NTB_TRANSPORT
327
328config RIONET
329 tristate "RapidIO Ethernet over messaging driver support"
330 depends on RAPIDIO
331
332config RIONET_TX_SIZE
333 int "Number of outbound queue entries"
334 depends on RIONET
335 default "128"
336
337config RIONET_RX_SIZE
338 int "Number of inbound queue entries"
339 depends on RIONET
340 default "128"
341
342config TUN
343 tristate "Universal TUN/TAP device driver support"
344 depends on INET
345 select CRC32
346 help
347 TUN/TAP provides packet reception and transmission for user space
348 programs. It can be viewed as a simple Point-to-Point or Ethernet
349 device, which instead of receiving packets from a physical media,
350 receives them from user space program and instead of sending packets
351 via physical media writes them to the user space program.
352
353 When a program opens /dev/net/tun, driver creates and registers
354 corresponding net device tunX or tapX. After a program closed above
355 devices, driver will automatically delete tunXX or tapXX device and
356 all routes corresponding to it.
357
358 Please read <file:Documentation/networking/tuntap.rst> for more
359 information.
360
361 To compile this driver as a module, choose M here: the module
362 will be called tun.
363
364 If you don't know what to use this for, you don't need it.
365
366config TAP
367 tristate
368 help
369 This option is selected by any driver implementing tap user space
370 interface for a virtual interface to re-use core tap functionality.
371
372config TUN_VNET_CROSS_LE
373 bool "Support for cross-endian vnet headers on little-endian kernels"
374 default n
375 help
376 This option allows TUN/TAP and MACVTAP device drivers in a
377 little-endian kernel to parse vnet headers that come from a
378 big-endian legacy virtio device.
379
380 Userspace programs can control the feature using the TUNSETVNETBE
381 and TUNGETVNETBE ioctls.
382
383 Unless you have a little-endian system hosting a big-endian virtual
384 machine with a legacy virtio NIC, you should say N.
385
386config VETH
387 tristate "Virtual ethernet pair device"
388 help
389 This device is a local ethernet tunnel. Devices are created in pairs.
390 When one end receives the packet it appears on its pair and vice
391 versa.
392
393config VIRTIO_NET
394 tristate "Virtio network driver"
395 depends on VIRTIO
396 select NET_FAILOVER
397 help
398 This is the virtual network driver for virtio. It can be used with
399 QEMU based VMMs (like KVM or Xen). Say Y or M.
400
401config NLMON
402 tristate "Virtual netlink monitoring device"
403 help
404 This option enables a monitoring net device for netlink skbs. The
405 purpose of this is to analyze netlink messages with packet sockets.
406 Thus applications like tcpdump will be able to see local netlink
407 messages if they tap into the netlink device, record pcaps for further
408 diagnostics, etc. This is mostly intended for developers or support
409 to debug netlink issues. If unsure, say N.
410
411config NET_VRF
412 tristate "Virtual Routing and Forwarding (Lite)"
413 depends on IP_MULTIPLE_TABLES
414 depends on NET_L3_MASTER_DEV
415 depends on IPV6 || IPV6=n
416 depends on IPV6_MULTIPLE_TABLES || IPV6=n
417 help
418 This option enables the support for mapping interfaces into VRF's. The
419 support enables VRF devices.
420
421config VSOCKMON
422 tristate "Virtual vsock monitoring device"
423 depends on VHOST_VSOCK
424 help
425 This option enables a monitoring net device for vsock sockets. It is
426 mostly intended for developers or support to debug vsock issues. If
427 unsure, say N.
428
429endif # NET_CORE
430
431config SUNGEM_PHY
432 tristate
433
434source "drivers/net/arcnet/Kconfig"
435
436source "drivers/atm/Kconfig"
437
438source "drivers/net/caif/Kconfig"
439
440source "drivers/net/dsa/Kconfig"
441
442source "drivers/net/ethernet/Kconfig"
443
444source "drivers/net/fddi/Kconfig"
445
446source "drivers/net/hippi/Kconfig"
447
448source "drivers/net/ipa/Kconfig"
449
450config NET_SB1000
451 tristate "General Instruments Surfboard 1000"
452 depends on PNP
453 help
454 This is a driver for the General Instrument (also known as
455 NextLevel) SURFboard 1000 internal
456 cable modem. This is an ISA card which is used by a number of cable
457 TV companies to provide cable modem access. It's a one-way
458 downstream-only cable modem, meaning that your upstream net link is
459 provided by your regular phone modem.
460
461 At present this driver only compiles as a module, so say M here if
462 you have this card. The module will be called sb1000. Then read
463 <file:Documentation/networking/device_drivers/cable/sb1000.rst> for
464 information on how to use this module, as it needs special ppp
465 scripts for establishing a connection. Further documentation
466 and the necessary scripts can be found at:
467
468 <http://www.jacksonville.net/~fventuri/>
469 <http://home.adelphia.net/~siglercm/sb1000.html>
470 <http://linuxpower.cx/~cable/>
471
472 If you don't have this card, of course say N.
473
474source "drivers/net/phy/Kconfig"
475
476source "drivers/net/plip/Kconfig"
477
478source "drivers/net/ppp/Kconfig"
479
480source "drivers/net/slip/Kconfig"
481
482source "drivers/s390/net/Kconfig"
483
484source "drivers/net/usb/Kconfig"
485
486source "drivers/net/wireless/Kconfig"
487
488source "drivers/net/wimax/Kconfig"
489
490source "drivers/net/wan/Kconfig"
491
492source "drivers/net/ieee802154/Kconfig"
493
494config XEN_NETDEV_FRONTEND
495 tristate "Xen network device frontend driver"
496 depends on XEN
497 select XEN_XENBUS_FRONTEND
498 select PAGE_POOL
499 default y
500 help
501 This driver provides support for Xen paravirtual network
502 devices exported by a Xen network driver domain (often
503 domain 0).
504
505 The corresponding Linux backend driver is enabled by the
506 CONFIG_XEN_NETDEV_BACKEND option.
507
508 If you are compiling a kernel for use as Xen guest, you
509 should say Y here. To compile this driver as a module, chose
510 M here: the module will be called xen-netfront.
511
512config XEN_NETDEV_BACKEND
513 tristate "Xen backend network device"
514 depends on XEN_BACKEND
515 help
516 This driver allows the kernel to act as a Xen network driver
517 domain which exports paravirtual network devices to other
518 Xen domains. These devices can be accessed by any operating
519 system that implements a compatible front end.
520
521 The corresponding Linux frontend driver is enabled by the
522 CONFIG_XEN_NETDEV_FRONTEND configuration option.
523
524 The backend driver presents a standard network device
525 endpoint for each paravirtual network device to the driver
526 domain network stack. These can then be bridged or routed
527 etc in order to provide full network connectivity.
528
529 If you are compiling a kernel to run in a Xen network driver
530 domain (often this is domain 0) you should say Y here. To
531 compile this driver as a module, chose M here: the module
532 will be called xen-netback.
533
534config VMXNET3
535 tristate "VMware VMXNET3 ethernet driver"
536 depends on PCI && INET
537 depends on !(PAGE_SIZE_64KB || ARM64_64K_PAGES || \
538 IA64_PAGE_SIZE_64KB || MICROBLAZE_64K_PAGES || \
539 PARISC_PAGE_SIZE_64KB || PPC_64K_PAGES)
540 help
541 This driver supports VMware's vmxnet3 virtual ethernet NIC.
542 To compile this driver as a module, choose M here: the
543 module will be called vmxnet3.
544
545config FUJITSU_ES
546 tristate "FUJITSU Extended Socket Network Device driver"
547 depends on ACPI
548 help
549 This driver provides support for Extended Socket network device
550 on Extended Partitioning of FUJITSU PRIMEQUEST 2000 E2 series.
551
552config USB4_NET
553 tristate "Networking over USB4 and Thunderbolt cables"
554 depends on USB4 && INET
555 help
556 Select this if you want to create network between two computers
557 over a USB4 and Thunderbolt cables. The driver supports Apple
558 ThunderboltIP protocol and allows communication with any host
559 supporting the same protocol including Windows and macOS.
560
561 To compile this driver a module, choose M here. The module will be
562 called thunderbolt-net.
563
564source "drivers/net/hyperv/Kconfig"
565
566config NETDEVSIM
567 tristate "Simulated networking device"
568 depends on DEBUG_FS
569 depends on INET
570 depends on IPV6 || IPV6=n
571 select NET_DEVLINK
572 help
573 This driver is a developer testing tool and software model that can
574 be used to test various control path networking APIs, especially
575 HW-offload related.
576
577 To compile this driver as a module, choose M here: the module
578 will be called netdevsim.
579
580config NET_FAILOVER
581 tristate "Failover driver"
582 select FAILOVER
583 help
584 This provides an automated failover mechanism via APIs to create
585 and destroy a failover master netdev and manages a primary and
586 standby slave netdevs that get registered via the generic failover
587 infrastructure. This can be used by paravirtual drivers to enable
588 an alternate low latency datapath. It also enables live migration of
589 a VM with direct attached VF by failing over to the paravirtual
590 datapath when the VF is unplugged.
591
592endif # NETDEVICES