xref: /openbmc/linux/net/atm/Kconfig (revision e15a5365)
1# SPDX-License-Identifier: GPL-2.0-only
2#
3# Asynchronous Transfer Mode (ATM)
4#
5
6config ATM
7	tristate "Asynchronous Transfer Mode (ATM)"
8	help
9	  ATM is a high-speed networking technology for Local Area Networks
10	  and Wide Area Networks.  It uses a fixed packet size and is
11	  connection oriented, allowing for the negotiation of minimum
12	  bandwidth requirements.
13
14	  In order to participate in an ATM network, your Linux box needs an
15	  ATM networking card. If you have that, say Y here and to the driver
16	  of your ATM card below.
17
18	  Note that you need a set of user-space programs to actually make use
19	  of ATM.  See the file <file:Documentation/networking/atm.rst> for
20	  further details.
21
22config ATM_CLIP
23	tristate "Classical IP over ATM"
24	depends on ATM && INET
25	help
26	  Classical IP over ATM for PVCs and SVCs, supporting InARP and
27	  ATMARP. If you want to communication with other IP hosts on your ATM
28	  network, you will typically either say Y here or to "LAN Emulation
29	  (LANE)" below.
30
31config ATM_CLIP_NO_ICMP
32	bool "Do NOT send ICMP if no neighbour"
33	depends on ATM_CLIP
34	help
35	  Normally, an "ICMP host unreachable" message is sent if a neighbour
36	  cannot be reached because there is no VC to it in the kernel's
37	  ATMARP table. This may cause problems when ATMARP table entries are
38	  briefly removed during revalidation. If you say Y here, packets to
39	  such neighbours are silently discarded instead.
40
41config ATM_LANE
42	tristate "LAN Emulation (LANE) support"
43	depends on ATM
44	help
45	  LAN Emulation emulates services of existing LANs across an ATM
46	  network. Besides operating as a normal ATM end station client, Linux
47	  LANE client can also act as an proxy client bridging packets between
48	  ELAN and Ethernet segments. You need LANE if you want to try MPOA.
49
50config ATM_MPOA
51	tristate "Multi-Protocol Over ATM (MPOA) support"
52	depends on ATM && INET && ATM_LANE!=n
53	help
54	  Multi-Protocol Over ATM allows ATM edge devices such as routers,
55	  bridges and ATM attached hosts establish direct ATM VCs across
56	  subnetwork boundaries. These shortcut connections bypass routers
57	  enhancing overall network performance.
58
59config ATM_BR2684
60	tristate "RFC1483/2684 Bridged protocols"
61	depends on ATM && INET
62	help
63	  ATM PVCs can carry ethernet PDUs according to RFC2684 (formerly 1483)
64	  This device will act like an ethernet from the kernels point of view,
65	  with the traffic being carried by ATM PVCs (currently 1 PVC/device).
66	  This is sometimes used over DSL lines.  If in doubt, say N.
67
68config ATM_BR2684_IPFILTER
69	bool "Per-VC IP filter kludge"
70	depends on ATM_BR2684
71	help
72	  This is an experimental mechanism for users who need to terminate a
73	  large number of IP-only vcc's.  Do not enable this unless you are sure
74	  you know what you are doing.
75