[firefly-linux-kernel-4.4.55.git] / drivers / net / Kconfig

#
# Network device configuration
#

menuconfig NETDEVICES
        default y if UML
        depends on NET
        bool "Network device support"
        ---help---
          You can say N here if you don't intend to connect your Linux box to
          any other computer at all.

          You'll have to say Y if your computer contains a network card that
          you want to use under Linux. If you are going to run SLIP or PPP over
          telephone line or null modem cable you need say Y here. Connecting
          two machines with parallel ports using PLIP needs this, as well as
          AX.25/KISS for sending Internet traffic over amateur radio links.

          See also "The Linux Network Administrator's Guide" by Olaf Kirch and
          Terry Dawson. Available at <http://www.tldp.org/guides.html>.

          If unsure, say Y.

# All the following symbols are dependent on NETDEVICES - do not repeat
# that for each of the symbols.
if NETDEVICES

config IFB
        tristate "Intermediate Functional Block support"
        depends on NET_CLS_ACT
        ---help---
          This is an intermediate driver that allows sharing of
          resources.
          To compile this driver as a module, choose M here: the module
          will be called ifb.  If you want to use more than one ifb
          device at a time, you need to compile this driver as a module.
          Instead of 'ifb', the devices will then be called 'ifb0',
          'ifb1' etc.
          Look at the iproute2 documentation directory for usage etc

config DUMMY
        tristate "Dummy net driver support"
        ---help---
          This is essentially a bit-bucket device (i.e. traffic you send to
          this device is consigned into oblivion) with a configurable IP
          address. It is most commonly used in order to make your currently
          inactive SLIP address seem like a real address for local programs.
          If you use SLIP or PPP, you might want to say Y here. Since this
          thing often comes in handy, the default is Y. It won't enlarge your
          kernel either. What a deal. Read about it in the Network
          Administrator's Guide, available from
          <http://www.tldp.org/docs.html#guide>.

          To compile this driver as a module, choose M here: the module
          will be called dummy.  If you want to use more than one dummy
          device at a time, you need to compile this driver as a module.
          Instead of 'dummy', the devices will then be called 'dummy0',
          'dummy1' etc.

config BONDING
        tristate "Bonding driver support"
        depends on INET
        depends on IPV6 || IPV6=n
        ---help---
          Say 'Y' or 'M' if you wish to be able to 'bond' multiple Ethernet
          Channels together. This is called 'Etherchannel' by Cisco,
          'Trunking' by Sun, 802.3ad by the IEEE, and 'Bonding' in Linux.

          The driver supports multiple bonding modes to allow for both high
          performance and high availability operation.

          Refer to <file:Documentation/networking/bonding.txt> for more
          information.

          To compile this driver as a module, choose M here: the module
          will be called bonding.

config MACVLAN
        tristate "MAC-VLAN support (EXPERIMENTAL)"
        depends on EXPERIMENTAL
        ---help---
          This allows one to create virtual interfaces that map packets to
          or from specific MAC addresses to a particular interface.

          Macvlan devices can be added using the "ip" command from the
          iproute2 package starting with the iproute2-2.6.23 release:

          "ip link add link <real dev> [ address MAC ] [ NAME ] type macvlan"

          To compile this driver as a module, choose M here: the module
          will be called macvlan.

config MACVTAP
        tristate "MAC-VLAN based tap driver (EXPERIMENTAL)"
        depends on MACVLAN
        help
          This adds a specialized tap character device driver that is based
          on the MAC-VLAN network interface, called macvtap. A macvtap device
          can be added in the same way as a macvlan device, using 'type
          macvlan', and then be accessed through the tap user space interface.

          To compile this driver as a module, choose M here: the module
          will be called macvtap.

config EQUALIZER
        tristate "EQL (serial line load balancing) support"
        ---help---
          If you have two serial connections to some other computer (this
          usually requires two modems and two telephone lines) and you use
          SLIP (the protocol for sending Internet traffic over telephone
          lines) or PPP (a better SLIP) on them, you can make them behave like
          one double speed connection using this driver.  Naturally, this has
          to be supported at the other end as well, either with a similar EQL
          Linux driver or with a Livingston Portmaster 2e.

          Say Y if you want this and read
          <file:Documentation/networking/eql.txt>.  You may also want to read
          section 6.2 of the NET-3-HOWTO, available from
          <http://www.tldp.org/docs.html#howto>.

          To compile this driver as a module, choose M here: the module
          will be called eql.  If unsure, say N.

config TUN
        tristate "Universal TUN/TAP device driver support"
        select CRC32
        ---help---
          TUN/TAP provides packet reception and transmission for user space
          programs.  It can be viewed as a simple Point-to-Point or Ethernet
          device, which instead of receiving packets from a physical media,
          receives them from user space program and instead of sending packets
          via physical media writes them to the user space program.

          When a program opens /dev/net/tun, driver creates and registers
          corresponding net device tunX or tapX.  After a program closed above
          devices, driver will automatically delete tunXX or tapXX device and
          all routes corresponding to it.

          Please read <file:Documentation/networking/tuntap.txt> for more
          information.

          To compile this driver as a module, choose M here: the module
          will be called tun.

          If you don't know what to use this for, you don't need it.

config VETH
        tristate "Virtual ethernet pair device"
        ---help---
          This device is a local ethernet tunnel. Devices are created in pairs.
          When one end receives the packet it appears on its pair and vice
          versa.

config NET_SB1000
        tristate "General Instruments Surfboard 1000"
        depends on PNP
        ---help---
          This is a driver for the General Instrument (also known as
          NextLevel) SURFboard 1000 internal
          cable modem. This is an ISA card which is used by a number of cable
          TV companies to provide cable modem access. It's a one-way
          downstream-only cable modem, meaning that your upstream net link is
          provided by your regular phone modem.

          At present this driver only compiles as a module, so say M here if
          you have this card. The module will be called sb1000. Then read
          <file:Documentation/networking/README.sb1000> for information on how
          to use this module, as it needs special ppp scripts for establishing
          a connection. Further documentation and the necessary scripts can be
          found at:

          <http://www.jacksonville.net/~fventuri/>
          <http://home.adelphia.net/~siglercm/sb1000.html>
          <http://linuxpower.cx/~cable/>

          If you don't have this card, of course say N.

source "drivers/net/arcnet/Kconfig"

config MII
        tristate "Generic Media Independent Interface device support"
        help
          Most ethernet controllers have MII transceiver either as an external
          or internal device.  It is safe to say Y or M here even if your
          ethernet card lacks MII.

source "drivers/net/phy/Kconfig"

#
#       Ethernet
#

source "drivers/net/ethernet/Kconfig"

menuconfig NET_ETHERNET
        bool "Ethernet (10 or 100Mbit)"
        depends on !UML
        ---help---
          Ethernet (also called IEEE 802.3 or ISO 8802-2) is the most common
          type of Local Area Network (LAN) in universities and companies.

          Common varieties of Ethernet are: 10BASE-2 or Thinnet (10 Mbps over
          coaxial cable, linking computers in a chain), 10BASE-T or twisted
          pair (10 Mbps over twisted pair cable, linking computers to central
          hubs), 10BASE-F (10 Mbps over optical fiber links, using hubs),
          100BASE-TX (100 Mbps over two twisted pair cables, using hubs),
          100BASE-T4 (100 Mbps over 4 standard voice-grade twisted pair
          cables, using hubs), 100BASE-FX (100 Mbps over optical fiber links)
          [the 100BASE varieties are also known as Fast Ethernet], and Gigabit
          Ethernet (1 Gbps over optical fiber or short copper links).

          If your Linux machine will be connected to an Ethernet and you have
          an Ethernet network interface card (NIC) installed in your computer,
          say Y here and read the Ethernet-HOWTO, available from
          <http://www.tldp.org/docs.html#howto>. You will then also have
          to say Y to the driver for your particular NIC.

          Note that the answer to this question won't directly affect the
          kernel: saying N will just cause the configurator to skip all
          the questions about Ethernet network cards. If unsure, say N.

if NET_ETHERNET

config SH_ETH
        tristate "Renesas SuperH Ethernet support"
        depends on SUPERH && \
                (CPU_SUBTYPE_SH7710 || CPU_SUBTYPE_SH7712 || \
                 CPU_SUBTYPE_SH7763 || CPU_SUBTYPE_SH7619 || \
                 CPU_SUBTYPE_SH7724 || CPU_SUBTYPE_SH7757)
        select CRC32
        select MII
        select MDIO_BITBANG
        select PHYLIB
        help
          Renesas SuperH Ethernet device driver.
          This driver supporting CPUs are:
                - SH7710, SH7712, SH7763, SH7619, SH7724, and SH7757.

config NET_NETX
        tristate "NetX Ethernet support"
        select MII
        depends on ARCH_NETX
        help
          This is support for the Hilscher netX builtin Ethernet ports

          To compile this driver as a module, choose M here. The module
          will be called netx-eth.

config DM9000
        tristate "DM9000 support"
        depends on ARM || BLACKFIN || MIPS
        select CRC32
        select MII
        ---help---
          Support for DM9000 chipset.

          To compile this driver as a module, choose M here.  The module
          will be called dm9000.

config DM9000_DEBUGLEVEL
        int "DM9000 maximum debug level"
        depends on DM9000
        default 4
        help
          The maximum level of debugging code compiled into the DM9000
          driver.

config DM9000_FORCE_SIMPLE_PHY_POLL
        bool "Force simple NSR based PHY polling"
        depends on DM9000
        ---help---
          This configuration forces the DM9000 to use the NSR's LinkStatus
          bit to determine if the link is up or down instead of the more
          costly MII PHY reads. Note, this will not work if the chip is
          operating with an external PHY.

config ENC28J60
        tristate "ENC28J60 support"
        depends on EXPERIMENTAL && SPI && NET_ETHERNET
        select CRC32
        ---help---
          Support for the Microchip EN28J60 ethernet chip.

          To compile this driver as a module, choose M here. The module will be
          called enc28j60.

config ENC28J60_WRITEVERIFY
        bool "Enable write verify"
        depends on ENC28J60
        ---help---
          Enable the verify after the buffer write useful for debugging purpose.
          If unsure, say N.

config ETHOC
        tristate "OpenCores 10/100 Mbps Ethernet MAC support"
        depends on NET_ETHERNET && HAS_IOMEM && HAS_DMA
        select MII
        select PHYLIB
        select CRC32
        select BITREVERSE
        help
          Say Y here if you want to use the OpenCores 10/100 Mbps Ethernet MAC.

config GRETH
        tristate "Aeroflex Gaisler GRETH Ethernet MAC support"
        depends on SPARC
        select PHYLIB
        select CRC32
        help
          Say Y here if you want to use the Aeroflex Gaisler GRETH Ethernet MAC.

config DNET
        tristate "Dave ethernet support (DNET)"
        depends on NET_ETHERNET && HAS_IOMEM
        select PHYLIB
        help
          The Dave ethernet interface (DNET) is found on Qong Board FPGA.
          Say Y to include support for the DNET chip.

          To compile this driver as a module, choose M here: the module
          will be called dnet.

config NET_PCI
        bool "EISA, VLB, PCI and on board controllers"
        depends on ISA || EISA || PCI
        help
          This is another class of network cards which attach directly to the
          bus. If you have one of those, say Y and read the Ethernet-HOWTO,
          available from <http://www.tldp.org/docs.html#howto>.

          Note that the answer to this question doesn't directly affect the
          kernel: saying N will just cause the configurator to skip all
          the questions about this class of network cards. If you say Y, you
          will be asked for your specific card in the following questions. If
          you are unsure, say Y.

config NET_POCKET
        bool "Pocket and portable adapters"
        depends on PARPORT
        ---help---
          Cute little network (Ethernet) devices which attach to the parallel
          port ("pocket adapters"), commonly used with laptops. If you have
          one of those, say Y and read the Ethernet-HOWTO, available from
          <http://www.tldp.org/docs.html#howto>.

          If you want to plug a network (or some other) card into the PCMCIA
          (or PC-card) slot of your laptop instead (PCMCIA is the standard for
          credit card size extension cards used by all modern laptops), you
          need the pcmcia-cs package (location contained in the file
          <file:Documentation/Changes>) and you can say N here.

          Laptop users should read the Linux Laptop home page at
          <http://www.linux-on-laptops.com/> or
          Tuxmobil - Linux on Mobile Computers at <http://www.tuxmobil.org/>.

          Note that the answer to this question doesn't directly affect the
          kernel: saying N will just cause the configurator to skip all
          the questions about this class of network devices. If you say Y, you
          will be asked for your specific device in the following questions.

endif # NET_ETHERNET

#
#       Gigabit Ethernet
#

menuconfig NETDEV_1000
        bool "Ethernet (1000 Mbit)"
        depends on !UML
        default y
        ---help---
          Ethernet (also called IEEE 802.3 or ISO 8802-2) is the most common
          type of Local Area Network (LAN) in universities and companies.

          Say Y here to get to see options for Gigabit Ethernet drivers.
          This option alone does not add any kernel code.
          Note that drivers supporting both 100 and 1000 MBit may be listed
          under "Ethernet (10 or 100MBit)" instead.

          If you say N, all options in this submenu will be skipped and disabled.

if NETDEV_1000

endif # NETDEV_1000

#
#       10 Gigabit Ethernet
#

menuconfig NETDEV_10000
        bool "Ethernet (10000 Mbit)"
        depends on !UML
        default y
        ---help---
          Say Y here to get to see options for 10 Gigabit Ethernet drivers.
          This option alone does not add any kernel code.

          If you say N, all options in this submenu will be skipped and disabled.

if NETDEV_10000

config MDIO
        tristate

config SUNGEM_PHY
        tristate

endif # NETDEV_10000

source "drivers/net/tokenring/Kconfig"

source "drivers/net/wireless/Kconfig"

source "drivers/net/wimax/Kconfig"

source "drivers/net/usb/Kconfig"

source "drivers/net/pcmcia/Kconfig"

source "drivers/net/wan/Kconfig"

source "drivers/atm/Kconfig"

source "drivers/ieee802154/Kconfig"

source "drivers/s390/net/Kconfig"

source "drivers/net/caif/Kconfig"

config TILE_NET
        tristate "Tilera GBE/XGBE network driver support"
        depends on TILE
        default y
        select CRC32
        help
          This is a standard Linux network device driver for the
          on-chip Tilera Gigabit Ethernet and XAUI interfaces.

          To compile this driver as a module, choose M here: the module
          will be called tile_net.

config XEN_NETDEV_FRONTEND
        tristate "Xen network device frontend driver"
        depends on XEN
        select XEN_XENBUS_FRONTEND
        default y
        help
          This driver provides support for Xen paravirtual network
          devices exported by a Xen network driver domain (often
          domain 0).

          The corresponding Linux backend driver is enabled by the
          CONFIG_XEN_NETDEV_BACKEND option.

          If you are compiling a kernel for use as Xen guest, you
          should say Y here. To compile this driver as a module, chose
          M here: the module will be called xen-netfront.

config XEN_NETDEV_BACKEND
        tristate "Xen backend network device"
        depends on XEN_BACKEND
        help
          This driver allows the kernel to act as a Xen network driver
          domain which exports paravirtual network devices to other
          Xen domains. These devices can be accessed by any operating
          system that implements a compatible front end.

          The corresponding Linux frontend driver is enabled by the
          CONFIG_XEN_NETDEV_FRONTEND configuration option.

          The backend driver presents a standard network device
          endpoint for each paravirtual network device to the driver
          domain network stack. These can then be bridged or routed
          etc in order to provide full network connectivity.

          If you are compiling a kernel to run in a Xen network driver
          domain (often this is domain 0) you should say Y here. To
          compile this driver as a module, chose M here: the module
          will be called xen-netback.

config RIONET
        tristate "RapidIO Ethernet over messaging driver support"
        depends on RAPIDIO

config RIONET_TX_SIZE
        int "Number of outbound queue entries"
        depends on RIONET
        default "128"

config RIONET_RX_SIZE
        int "Number of inbound queue entries"
        depends on RIONET
        default "128"

config FDDI
        tristate "FDDI driver support"
        depends on (PCI || EISA || TC)
        help
          Fiber Distributed Data Interface is a high speed local area network
          design; essentially a replacement for high speed Ethernet. FDDI can
          run over copper or fiber. If you are connected to such a network and
          want a driver for the FDDI card in your computer, say Y here (and
          then also Y to the driver for your FDDI card, below). Most people
          will say N.

config DEFXX
        tristate "Digital DEFTA/DEFEA/DEFPA adapter support"
        depends on FDDI && (PCI || EISA || TC)
        ---help---
          This is support for the DIGITAL series of TURBOchannel (DEFTA),
          EISA (DEFEA) and PCI (DEFPA) controllers which can connect you
          to a local FDDI network.

          To compile this driver as a module, choose M here: the module
          will be called defxx.  If unsure, say N.

config DEFXX_MMIO
        bool
        prompt "Use MMIO instead of PIO" if PCI || EISA
        depends on DEFXX
        default n if PCI || EISA
        default y
        ---help---
          This instructs the driver to use EISA or PCI memory-mapped I/O
          (MMIO) as appropriate instead of programmed I/O ports (PIO).
          Enabling this gives an improvement in processing time in parts
          of the driver, but it may cause problems with EISA (DEFEA)
          adapters.  TURBOchannel does not have the concept of I/O ports,
          so MMIO is always used for these (DEFTA) adapters.

          If unsure, say N.

config SKFP
        tristate "SysKonnect FDDI PCI support"
        depends on FDDI && PCI
        select BITREVERSE
        ---help---
          Say Y here if you have a SysKonnect FDDI PCI adapter.
          The following adapters are supported by this driver:
          - SK-5521 (SK-NET FDDI-UP)
          - SK-5522 (SK-NET FDDI-UP DAS)
          - SK-5541 (SK-NET FDDI-FP)
          - SK-5543 (SK-NET FDDI-LP)
          - SK-5544 (SK-NET FDDI-LP DAS)
          - SK-5821 (SK-NET FDDI-UP64)
          - SK-5822 (SK-NET FDDI-UP64 DAS)
          - SK-5841 (SK-NET FDDI-FP64)
          - SK-5843 (SK-NET FDDI-LP64)
          - SK-5844 (SK-NET FDDI-LP64 DAS)
          - Netelligent 100 FDDI DAS Fibre SC
          - Netelligent 100 FDDI SAS Fibre SC
          - Netelligent 100 FDDI DAS UTP
          - Netelligent 100 FDDI SAS UTP
          - Netelligent 100 FDDI SAS Fibre MIC

          Read <file:Documentation/networking/skfp.txt> for information about
          the driver.

          Questions concerning this driver can be addressed to:
          <linux@syskonnect.de>

          To compile this driver as a module, choose M here: the module
          will be called skfp.  This is recommended.

config HIPPI
        bool "HIPPI driver support (EXPERIMENTAL)"
        depends on EXPERIMENTAL && INET && PCI
        help
          HIgh Performance Parallel Interface (HIPPI) is a 800Mbit/sec and
          1600Mbit/sec dual-simplex switched or point-to-point network. HIPPI
          can run over copper (25m) or fiber (300m on multi-mode or 10km on
          single-mode). HIPPI networks are commonly used for clusters and to
          connect to super computers. If you are connected to a HIPPI network
          and have a HIPPI network card in your computer that you want to use
          under Linux, say Y here (you must also remember to enable the driver
          for your HIPPI card below). Most people will say N here.

config ROADRUNNER
        tristate "Essential RoadRunner HIPPI PCI adapter support (EXPERIMENTAL)"
        depends on HIPPI && PCI
        help
          Say Y here if this is your PCI HIPPI network card.

          To compile this driver as a module, choose M here: the module
          will be called rrunner.  If unsure, say N.

config ROADRUNNER_LARGE_RINGS
        bool "Use large TX/RX rings (EXPERIMENTAL)"
        depends on ROADRUNNER
        help
          If you say Y here, the RoadRunner driver will preallocate up to 2 MB
          of additional memory to allow for fastest operation, both for
          transmitting and receiving. This memory cannot be used by any other
          kernel code or by user space programs. Say Y here only if you have
          the memory.

config PLIP
        tristate "PLIP (parallel port) support"
        depends on PARPORT
        ---help---
          PLIP (Parallel Line Internet Protocol) is used to create a
          reasonably fast mini network consisting of two (or, rarely, more)
          local machines.  A PLIP link from a Linux box is a popular means to
          install a Linux distribution on a machine which doesn't have a
          CD-ROM drive (a minimal system has to be transferred with floppies
          first). The kernels on both machines need to have this PLIP option
          enabled for this to work.

          The PLIP driver has two modes, mode 0 and mode 1.  The parallel
          ports (the connectors at the computers with 25 holes) are connected
          with "null printer" or "Turbo Laplink" cables which can transmit 4
          bits at a time (mode 0) or with special PLIP cables, to be used on
          bidirectional parallel ports only, which can transmit 8 bits at a
          time (mode 1); you can find the wiring of these cables in
          <file:Documentation/networking/PLIP.txt>.  The cables can be up to
          15m long.  Mode 0 works also if one of the machines runs DOS/Windows
          and has some PLIP software installed, e.g. the Crynwr PLIP packet
          driver (<http://oak.oakland.edu/simtel.net/msdos/pktdrvr-pre.html>)
          and winsock or NCSA's telnet.

          If you want to use PLIP, say Y and read the PLIP mini-HOWTO as well
          as the NET-3-HOWTO, both available from
          <http://www.tldp.org/docs.html#howto>.  Note that the PLIP
          protocol has been changed and this PLIP driver won't work together
          with the PLIP support in Linux versions 1.0.x.  This option enlarges
          your kernel by about 8 KB.

          To compile this driver as a module, choose M here. The module
          will be called plip. If unsure, say Y or M, in case you buy
          a laptop later.

config PPP
        tristate "PPP (point-to-point protocol) support"
        select SLHC
        ---help---
          PPP (Point to Point Protocol) is a newer and better SLIP.  It serves
          the same purpose: sending Internet traffic over telephone (and other
          serial) lines.  Ask your access provider if they support it, because
          otherwise you can't use it; most Internet access providers these
          days support PPP rather than SLIP.

          To use PPP, you need an additional program called pppd as described
          in the PPP-HOWTO, available at
          <http://www.tldp.org/docs.html#howto>.  Make sure that you have
          the version of pppd recommended in <file:Documentation/Changes>.
          The PPP option enlarges your kernel by about 16 KB.

          There are actually two versions of PPP: the traditional PPP for
          asynchronous lines, such as regular analog phone lines, and
          synchronous PPP which can be used over digital ISDN lines for
          example.  If you want to use PPP over phone lines or other
          asynchronous serial lines, you need to say Y (or M) here and also to
          the next option, "PPP support for async serial ports".  For PPP over
          synchronous lines, you should say Y (or M) here and to "Support
          synchronous PPP", below.

          If you said Y to "Version information on all symbols" above, then
          you cannot compile the PPP driver into the kernel; you can then only
          compile it as a module. To compile this driver as a module, choose M
          here. The module will be called ppp_generic.

config PPP_MULTILINK
        bool "PPP multilink support (EXPERIMENTAL)"
        depends on PPP && EXPERIMENTAL
        help
          PPP multilink is a protocol (defined in RFC 1990) which allows you
          to combine several (logical or physical) lines into one logical PPP
          connection, so that you can utilize your full bandwidth.

          This has to be supported at the other end as well and you need a
          version of the pppd daemon which understands the multilink protocol.

          If unsure, say N.

config PPP_FILTER
        bool "PPP filtering"
        depends on PPP
        help
          Say Y here if you want to be able to filter the packets passing over
          PPP interfaces.  This allows you to control which packets count as
          activity (i.e. which packets will reset the idle timer or bring up
          a demand-dialed link) and which packets are to be dropped entirely.
          You need to say Y here if you wish to use the pass-filter and
          active-filter options to pppd.

          If unsure, say N.

config PPP_ASYNC
        tristate "PPP support for async serial ports"
        depends on PPP
        select CRC_CCITT
        ---help---
          Say Y (or M) here if you want to be able to use PPP over standard
          asynchronous serial ports, such as COM1 or COM2 on a PC.  If you use
          a modem (not a synchronous or ISDN modem) to contact your ISP, you
          need this option.

          To compile this driver as a module, choose M here.

          If unsure, say Y.

config PPP_SYNC_TTY
        tristate "PPP support for sync tty ports"
        depends on PPP
        help
          Say Y (or M) here if you want to be able to use PPP over synchronous
          (HDLC) tty devices, such as the SyncLink adapter. These devices
          are often used for high-speed leased lines like T1/E1.

          To compile this driver as a module, choose M here.

config PPP_DEFLATE
        tristate "PPP Deflate compression"
        depends on PPP
        select ZLIB_INFLATE
        select ZLIB_DEFLATE
        ---help---
          Support for the Deflate compression method for PPP, which uses the
          Deflate algorithm (the same algorithm that gzip uses) to compress
          each PPP packet before it is sent over the wire.  The machine at the
          other end of the PPP link (usually your ISP) has to support the
          Deflate compression method as well for this to be useful.  Even if
          they don't support it, it is safe to say Y here.

          To compile this driver as a module, choose M here.

config PPP_BSDCOMP
        tristate "PPP BSD-Compress compression"
        depends on PPP
        ---help---
          Support for the BSD-Compress compression method for PPP, which uses
          the LZW compression method to compress each PPP packet before it is
          sent over the wire. The machine at the other end of the PPP link
          (usually your ISP) has to support the BSD-Compress compression
          method as well for this to be useful. Even if they don't support it,
          it is safe to say Y here.

          The PPP Deflate compression method ("PPP Deflate compression",
          above) is preferable to BSD-Compress, because it compresses better
          and is patent-free.

          Note that the BSD compression code will always be compiled as a
          module; it is called bsd_comp and will show up in the directory
          modules once you have said "make modules". If unsure, say N.

config PPP_MPPE
        tristate "PPP MPPE compression (encryption) (EXPERIMENTAL)"
        depends on PPP && EXPERIMENTAL
        select CRYPTO
        select CRYPTO_SHA1
        select CRYPTO_ARC4
        select CRYPTO_ECB
        ---help---
          Support for the MPPE Encryption protocol, as employed by the
          Microsoft Point-to-Point Tunneling Protocol.

          See http://pptpclient.sourceforge.net/ for information on
          configuring PPTP clients and servers to utilize this method.

config PPPOE
        tristate "PPP over Ethernet (EXPERIMENTAL)"
        depends on EXPERIMENTAL && PPP
        help
          Support for PPP over Ethernet.

          This driver requires the latest version of pppd from the CVS
          repository at cvs.samba.org.  Alternatively, see the 
          RoaringPenguin package (<http://www.roaringpenguin.com/pppoe>)
          which contains instruction on how to use this driver (under 
          the heading "Kernel mode PPPoE").

config PPTP
        tristate "PPP over IPv4 (PPTP) (EXPERIMENTAL)"
        depends on EXPERIMENTAL && PPP && NET_IPGRE_DEMUX
        help
          Support for PPP over IPv4.(Point-to-Point Tunneling Protocol)

          This driver requires pppd plugin to work in client mode or
          modified pptpd (poptop) to work in server mode.
          See http://accel-pptp.sourceforge.net/ for information how to
          utilize this module.

config PPPOATM
        tristate "PPP over ATM"
        depends on ATM && PPP
        help
          Support PPP (Point to Point Protocol) encapsulated in ATM frames.
          This implementation does not yet comply with section 8 of RFC2364,
          which can lead to bad results if the ATM peer loses state and
          changes its encapsulation unilaterally.

config PPPOL2TP
        tristate "PPP over L2TP (EXPERIMENTAL)"
        depends on EXPERIMENTAL && L2TP && PPP
        help
          Support for PPP-over-L2TP socket family. L2TP is a protocol
          used by ISPs and enterprises to tunnel PPP traffic over UDP
          tunnels. L2TP is replacing PPTP for VPN uses.

config SLIP
        tristate "SLIP (serial line) support"
        ---help---
          Say Y if you intend to use SLIP or CSLIP (compressed SLIP) to
          connect to your Internet service provider or to connect to some
          other local Unix box or if you want to configure your Linux box as a
          Slip/CSlip server for other people to dial in. SLIP (Serial Line
          Internet Protocol) is a protocol used to send Internet traffic over
          serial connections such as telephone lines or null modem cables;
          nowadays, the protocol PPP is more commonly used for this same
          purpose.

          Normally, your access provider has to support SLIP in order for you
          to be able to use it, but there is now a SLIP emulator called SLiRP
          around (available from
          <ftp://ibiblio.org/pub/Linux/system/network/serial/>) which
          allows you to use SLIP over a regular dial up shell connection. If
          you plan to use SLiRP, make sure to say Y to CSLIP, below. The
          NET-3-HOWTO, available from
          <http://www.tldp.org/docs.html#howto>, explains how to
          configure SLIP. Note that you don't need this option if you just
          want to run term (term is a program which gives you almost full
          Internet connectivity if you have a regular dial up shell account on
          some Internet connected Unix computer. Read
          <http://www.bart.nl/~patrickr/term-howto/Term-HOWTO.html>). SLIP
          support will enlarge your kernel by about 4 KB. If unsure, say N.

          To compile this driver as a module, choose M here. The module
          will be called slip.

config SLIP_COMPRESSED
        bool "CSLIP compressed headers"
        depends on SLIP
        select SLHC
        ---help---
          This protocol is faster than SLIP because it uses compression on the
          TCP/IP headers (not on the data itself), but it has to be supported
          on both ends. Ask your access provider if you are not sure and
          answer Y, just in case. You will still be able to use plain SLIP. If
          you plan to use SLiRP, the SLIP emulator (available from
          <ftp://ibiblio.org/pub/Linux/system/network/serial/>) which
          allows you to use SLIP over a regular dial up shell connection, you
          definitely want to say Y here. The NET-3-HOWTO, available from
          <http://www.tldp.org/docs.html#howto>, explains how to configure
          CSLIP. This won't enlarge your kernel.

config SLHC
        tristate
        help
          This option enables Van Jacobsen serial line header compression
          routines.

config SLIP_SMART
        bool "Keepalive and linefill"
        depends on SLIP
        help
          Adds additional capabilities to the SLIP driver to support the
          RELCOM line fill and keepalive monitoring. Ideal on poor quality
          analogue lines.

config SLIP_MODE_SLIP6
        bool "Six bit SLIP encapsulation"
        depends on SLIP
        help
          Just occasionally you may need to run IP over hostile serial
          networks that don't pass all control characters or are only seven
          bit. Saying Y here adds an extra mode you can use with SLIP:
          "slip6". In this mode, SLIP will only send normal ASCII symbols over
          the serial device. Naturally, this has to be supported at the other
          end of the link as well. It's good enough, for example, to run IP
          over the async ports of a Camtec JNT Pad. If unsure, say N.

config NET_FC
        bool "Fibre Channel driver support"
        depends on SCSI && PCI
        help
          Fibre Channel is a high speed serial protocol mainly used to connect
          large storage devices to the computer; it is compatible with and
          intended to replace SCSI.

          If you intend to use Fibre Channel, you need to have a Fibre channel
          adaptor card in your computer; say Y here and to the driver for your
          adaptor below. You also should have said Y to "SCSI support" and
          "SCSI generic support".

config NETCONSOLE
        tristate "Network console logging support"
        ---help---
        If you want to log kernel messages over the network, enable this.
        See <file:Documentation/networking/netconsole.txt> for details.

config NETCONSOLE_DYNAMIC
        bool "Dynamic reconfiguration of logging targets"
        depends on NETCONSOLE && SYSFS && CONFIGFS_FS && \
                        !(NETCONSOLE=y && CONFIGFS_FS=m)
        help
          This option enables the ability to dynamically reconfigure target
          parameters (interface, IP addresses, port numbers, MAC addresses)
          at runtime through a userspace interface exported using configfs.
          See <file:Documentation/networking/netconsole.txt> for details.

config NETPOLL
        def_bool NETCONSOLE

config NETPOLL_TRAP
        bool "Netpoll traffic trapping"
        default n
        depends on NETPOLL

config NET_POLL_CONTROLLER
        def_bool NETPOLL

config VIRTIO_NET
        tristate "Virtio network driver (EXPERIMENTAL)"
        depends on EXPERIMENTAL && VIRTIO
        ---help---
          This is the virtual network driver for virtio.  It can be used with
          lguest or QEMU based VMMs (like KVM or Xen).  Say Y or M.

config VMXNET3
        tristate "VMware VMXNET3 ethernet driver"
        depends on PCI && INET
        help
          This driver supports VMware's vmxnet3 virtual ethernet NIC.
          To compile this driver as a module, choose M here: the
          module will be called vmxnet3.

endif # NETDEVICES