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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 PFCP
294 tristate "Packet Forwarding Control Protocol (PFCP)"
295 depends on INET
296 select NET_UDP_TUNNEL
297 help
298 This allows one to create PFCP virtual interfaces that allows to
299 set up software and hardware offload of PFCP packets.
300 Note that this module does not support PFCP protocol in the kernel space.
301 There is no support for parsing any PFCP messages.
302
303 To compile this drivers as a module, choose M here: the module
304 will be called pfcp.
305
306config AMT
307 tristate "Automatic Multicast Tunneling (AMT)"
308 depends on INET && IP_MULTICAST
309 depends on IPV6 || !IPV6
310 select NET_UDP_TUNNEL
311 help
312 This allows one to create AMT(Automatic Multicast Tunneling)
313 virtual interfaces that provide multicast tunneling.
314 There are two roles, Gateway, and Relay.
315 Gateway Encapsulates IGMP/MLD traffic from listeners to the Relay.
316 Gateway Decapsulates multicast traffic from the Relay to Listeners.
317 Relay Encapsulates multicast traffic from Sources to Gateway.
318 Relay Decapsulates IGMP/MLD traffic from Gateway.
319
320 To compile this drivers as a module, choose M here: the module
321 will be called amt.
322
323config MACSEC
324 tristate "IEEE 802.1AE MAC-level encryption (MACsec)"
325 select CRYPTO
326 select CRYPTO_AES
327 select CRYPTO_GCM
328 select GRO_CELLS
329 help
330 MACsec is an encryption standard for Ethernet.
331
332config NETCONSOLE
333 tristate "Network console logging support"
334 help
335 If you want to log kernel messages over the network, enable this.
336 See <file:Documentation/networking/netconsole.rst> for details.
337
338config NETCONSOLE_DYNAMIC
339 bool "Dynamic reconfiguration of logging targets"
340 depends on NETCONSOLE && SYSFS && CONFIGFS_FS && \
341 !(NETCONSOLE=y && CONFIGFS_FS=m)
342 help
343 This option enables the ability to dynamically reconfigure target
344 parameters (interface, IP addresses, port numbers, MAC addresses)
345 at runtime through a userspace interface exported using configfs.
346 See <file:Documentation/networking/netconsole.rst> for details.
347
348config NETCONSOLE_EXTENDED_LOG
349 bool "Set kernel extended message by default"
350 depends on NETCONSOLE
351 default n
352 help
353 Set extended log support for netconsole message. If this option is
354 set, log messages are transmitted with extended metadata header in a
355 format similar to /dev/kmsg. See
356 <file:Documentation/networking/netconsole.rst> for details.
357
358config NETCONSOLE_PREPEND_RELEASE
359 bool "Prepend kernel release version in the message by default"
360 depends on NETCONSOLE_EXTENDED_LOG
361 default n
362 help
363 Set kernel release to be prepended to each netconsole message by
364 default. If this option is set, the kernel release is prepended into
365 the first field of every netconsole message, so, the netconsole
366 server/peer can easily identify what kernel release is logging each
367 message. See <file:Documentation/networking/netconsole.rst> for
368 details.
369
370config NETPOLL
371 def_bool NETCONSOLE
372
373config NET_POLL_CONTROLLER
374 def_bool NETPOLL
375
376config NTB_NETDEV
377 tristate "Virtual Ethernet over NTB Transport"
378 depends on NTB_TRANSPORT
379
380config RIONET
381 tristate "RapidIO Ethernet over messaging driver support"
382 depends on RAPIDIO
383
384config RIONET_TX_SIZE
385 int "Number of outbound queue entries"
386 depends on RIONET
387 default "128"
388
389config RIONET_RX_SIZE
390 int "Number of inbound queue entries"
391 depends on RIONET
392 default "128"
393
394config TUN
395 tristate "Universal TUN/TAP device driver support"
396 depends on INET
397 select CRC32
398 help
399 TUN/TAP provides packet reception and transmission for user space
400 programs. It can be viewed as a simple Point-to-Point or Ethernet
401 device, which instead of receiving packets from a physical media,
402 receives them from user space program and instead of sending packets
403 via physical media writes them to the user space program.
404
405 When a program opens /dev/net/tun, driver creates and registers
406 corresponding net device tunX or tapX. After a program closed above
407 devices, driver will automatically delete tunXX or tapXX device and
408 all routes corresponding to it.
409
410 Please read <file:Documentation/networking/tuntap.rst> for more
411 information.
412
413 To compile this driver as a module, choose M here: the module
414 will be called tun.
415
416 If you don't know what to use this for, you don't need it.
417
418config TAP
419 tristate
420 help
421 This option is selected by any driver implementing tap user space
422 interface for a virtual interface to re-use core tap functionality.
423
424config TUN_VNET_CROSS_LE
425 bool "Support for cross-endian vnet headers on little-endian kernels"
426 default n
427 help
428 This option allows TUN/TAP and MACVTAP device drivers in a
429 little-endian kernel to parse vnet headers that come from a
430 big-endian legacy virtio device.
431
432 Userspace programs can control the feature using the TUNSETVNETBE
433 and TUNGETVNETBE ioctls.
434
435 Unless you have a little-endian system hosting a big-endian virtual
436 machine with a legacy virtio NIC, you should say N.
437
438config VETH
439 tristate "Virtual ethernet pair device"
440 select PAGE_POOL
441 help
442 This device is a local ethernet tunnel. Devices are created in pairs.
443 When one end receives the packet it appears on its pair and vice
444 versa.
445
446config VIRTIO_NET
447 tristate "Virtio network driver"
448 depends on VIRTIO
449 select NET_FAILOVER
450 select DIMLIB
451 help
452 This is the virtual network driver for virtio. It can be used with
453 QEMU based VMMs (like KVM or Xen). Say Y or M.
454
455config NLMON
456 tristate "Virtual netlink monitoring device"
457 help
458 This option enables a monitoring net device for netlink skbs. The
459 purpose of this is to analyze netlink messages with packet sockets.
460 Thus applications like tcpdump will be able to see local netlink
461 messages if they tap into the netlink device, record pcaps for further
462 diagnostics, etc. This is mostly intended for developers or support
463 to debug netlink issues. If unsure, say N.
464
465config NETKIT
466 bool "BPF-programmable network device"
467 depends on BPF_SYSCALL
468 help
469 The netkit device is a virtual networking device where BPF programs
470 can be attached to the device(s) transmission routine in order to
471 implement the driver's internal logic. The device can be configured
472 to operate in L3 or L2 mode. If unsure, say N.
473
474config NET_VRF
475 tristate "Virtual Routing and Forwarding (Lite)"
476 depends on IP_MULTIPLE_TABLES
477 depends on NET_L3_MASTER_DEV
478 depends on IPV6 || IPV6=n
479 depends on IPV6_MULTIPLE_TABLES || IPV6=n
480 help
481 This option enables the support for mapping interfaces into VRF's. The
482 support enables VRF devices.
483
484config VSOCKMON
485 tristate "Virtual vsock monitoring device"
486 depends on VHOST_VSOCK
487 help
488 This option enables a monitoring net device for vsock sockets. It is
489 mostly intended for developers or support to debug vsock issues. If
490 unsure, say N.
491
492config MHI_NET
493 tristate "MHI network driver"
494 depends on MHI_BUS
495 help
496 This is the network driver for MHI bus. It can be used with
497 QCOM based WWAN modems for IP or QMAP/rmnet protocol (like SDX55).
498 Say Y or M.
499
500endif # NET_CORE
501
502config SUNGEM_PHY
503 tristate
504
505source "drivers/net/arcnet/Kconfig"
506
507source "drivers/atm/Kconfig"
508
509source "drivers/net/caif/Kconfig"
510
511source "drivers/net/dsa/Kconfig"
512
513source "drivers/net/ethernet/Kconfig"
514
515source "drivers/net/fddi/Kconfig"
516
517source "drivers/net/hippi/Kconfig"
518
519source "drivers/net/ipa/Kconfig"
520
521config NET_SB1000
522 tristate "General Instruments Surfboard 1000"
523 depends on ISA && PNP
524 help
525 This is a driver for the General Instrument (also known as
526 NextLevel) SURFboard 1000 internal
527 cable modem. This is an ISA card which is used by a number of cable
528 TV companies to provide cable modem access. It's a one-way
529 downstream-only cable modem, meaning that your upstream net link is
530 provided by your regular phone modem.
531
532 At present this driver only compiles as a module, so say M here if
533 you have this card. The module will be called sb1000. Then read
534 <file:Documentation/networking/device_drivers/cable/sb1000.rst> for
535 information on how to use this module, as it needs special ppp
536 scripts for establishing a connection. Further documentation
537 and the necessary scripts can be found at:
538
539 <http://www.jacksonville.net/~fventuri/>
540 <http://home.adelphia.net/~siglercm/sb1000.html>
541 <http://linuxpower.cx/~cable/>
542
543 If you don't have this card, of course say N.
544
545source "drivers/net/phy/Kconfig"
546
547source "drivers/net/pse-pd/Kconfig"
548
549source "drivers/net/can/Kconfig"
550
551source "drivers/net/mctp/Kconfig"
552
553source "drivers/net/mdio/Kconfig"
554
555source "drivers/net/pcs/Kconfig"
556
557source "drivers/net/plip/Kconfig"
558
559source "drivers/net/ppp/Kconfig"
560
561source "drivers/net/slip/Kconfig"
562
563source "drivers/s390/net/Kconfig"
564
565source "drivers/net/usb/Kconfig"
566
567source "drivers/net/wireless/Kconfig"
568
569source "drivers/net/wan/Kconfig"
570
571source "drivers/net/ieee802154/Kconfig"
572
573source "drivers/net/wwan/Kconfig"
574
575config XEN_NETDEV_FRONTEND
576 tristate "Xen network device frontend driver"
577 depends on XEN
578 select XEN_XENBUS_FRONTEND
579 select PAGE_POOL
580 default y
581 help
582 This driver provides support for Xen paravirtual network
583 devices exported by a Xen network driver domain (often
584 domain 0).
585
586 The corresponding Linux backend driver is enabled by the
587 CONFIG_XEN_NETDEV_BACKEND option.
588
589 If you are compiling a kernel for use as Xen guest, you
590 should say Y here. To compile this driver as a module, chose
591 M here: the module will be called xen-netfront.
592
593config XEN_NETDEV_BACKEND
594 tristate "Xen backend network device"
595 depends on XEN_BACKEND
596 help
597 This driver allows the kernel to act as a Xen network driver
598 domain which exports paravirtual network devices to other
599 Xen domains. These devices can be accessed by any operating
600 system that implements a compatible front end.
601
602 The corresponding Linux frontend driver is enabled by the
603 CONFIG_XEN_NETDEV_FRONTEND configuration option.
604
605 The backend driver presents a standard network device
606 endpoint for each paravirtual network device to the driver
607 domain network stack. These can then be bridged or routed
608 etc in order to provide full network connectivity.
609
610 If you are compiling a kernel to run in a Xen network driver
611 domain (often this is domain 0) you should say Y here. To
612 compile this driver as a module, chose M here: the module
613 will be called xen-netback.
614
615config VMXNET3
616 tristate "VMware VMXNET3 ethernet driver"
617 depends on PCI && INET
618 depends on PAGE_SIZE_LESS_THAN_64KB
619 select PAGE_POOL
620 help
621 This driver supports VMware's vmxnet3 virtual ethernet NIC.
622 To compile this driver as a module, choose M here: the
623 module will be called vmxnet3.
624
625config FUJITSU_ES
626 tristate "FUJITSU Extended Socket Network Device driver"
627 depends on ACPI
628 help
629 This driver provides support for Extended Socket network device
630 on Extended Partitioning of FUJITSU PRIMEQUEST 2000 E2 series.
631
632source "drivers/net/thunderbolt/Kconfig"
633source "drivers/net/hyperv/Kconfig"
634
635config NETDEVSIM
636 tristate "Simulated networking device"
637 depends on DEBUG_FS
638 depends on INET
639 depends on IPV6 || IPV6=n
640 depends on PSAMPLE || PSAMPLE=n
641 depends on PTP_1588_CLOCK_MOCK || PTP_1588_CLOCK_MOCK=n
642 select NET_DEVLINK
643 select PAGE_POOL
644 select NET_SHAPER
645 help
646 This driver is a developer testing tool and software model that can
647 be used to test various control path networking APIs, especially
648 HW-offload related.
649
650 To compile this driver as a module, choose M here: the module
651 will be called netdevsim.
652
653config NET_FAILOVER
654 tristate "Failover driver"
655 select FAILOVER
656 help
657 This provides an automated failover mechanism via APIs to create
658 and destroy a failover master netdev and manages a primary and
659 standby slave netdevs that get registered via the generic failover
660 infrastructure. This can be used by paravirtual drivers to enable
661 an alternate low latency datapath. It also enables live migration of
662 a VM with direct attached VF by failing over to the paravirtual
663 datapath when the VF is unplugged.
664
665config NETDEV_LEGACY_INIT
666 bool
667 depends on ISA
668 help
669 Drivers that call netdev_boot_setup_check() should select this
670 symbol, everything else no longer needs it.
671
672endif # 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