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MSK(4)                DragonFly Kernel Interfaces Manual                MSK(4)


NAME

     msk -- Marvell/SysKonnect Yukon II Gigabit Ethernet adapter driver


SYNOPSIS

     To compile this driver into the kernel, place the following lines in your
     kernel configuration file:

           device miibus
           device msk

     Alternatively, to load the driver as a module at boot time, place the
     following line in loader.conf(5):

           if_msk_load="YES"


DESCRIPTION

     The msk device driver provides support for various NICs based on the
     Marvell/SysKonnect Yukon II Gigabit Ethernet controller chip.

     All NICs supported by the msk driver have an interrupt moderation
     mechanism as well as a 64-bit multicast hash filter.  The Yukon II
     supports TBI (ten bit interface) and GMII transceivers, which means it
     can be used with either copper or 1000baseX fiber applications.

     The msk driver supports the following media types:

     autoselect   Enable autoselection of the media type and options.  The
                  user can manually override the autoselected mode by adding
                  media options to rc.conf(5).

     10baseT/UTP  Set 10Mbps operation.  The ifconfig(8) mediaopt option can
                  also be used to select either full-duplex or half-duplex
                  modes.

     100baseTX    Set 100Mbps (Fast Ethernet) operation.  The ifconfig(8)
                  mediaopt option can also be used to select either
                  full-duplex or half-duplex modes.

     1000baseT    Set 1000baseT operation over twisted pair.  The ifconfig(8)
                  mediaopt option can also be used to select either
                  full-duplex or half-duplex modes.

     1000baseSX   Set 1000Mbps (Gigabit Ethernet) operation.  Both full-duplex
                  and half-duplex modes are supported.

     The msk driver supports the following media options:

     full-duplex  Force full duplex operation.

     half-duplex  Force half duplex operation.

     The msk driver also supports one special link option for 1000baseT cards:

     link0  With 1000baseT cards, establishing a link between two ports
            requires that one port is configured as master and the other one
            as slave.  With autonegotiation, the master/slave settings will be
            chosen automatically.  However when manually selecting the link
            state, it is necessary to force one side of the link to be a
            master and the other a slave.  The msk driver configures the ports
            as slaves by default.  Setting the link0 flag with ifconfig(8)
            will set a port as a master instead.

     For more information on configuring this device, see ifconfig(8).


HARDWARE

     The msk driver provides support for various NICs based on the
     Marvell/SysKonnect Yukon II based Gigabit Ethernet controller chips,
     including:

     o   D-Link 550SX Gigabit Ethernet
     o   D-Link 560T Gigabit Ethernet
     o   Marvell Yukon 88E8021CU Gigabit Ethernet
     o   Marvell Yukon 88E8021 SX/LX Gigabit Ethernet
     o   Marvell Yukon 88E8022CU Gigabit Ethernet
     o   Marvell Yukon 88E8022 SX/LX Gigabit Ethernet
     o   Marvell Yukon 88E8061CU Gigabit Ethernet
     o   Marvell Yukon 88E8061 SX/LX Gigabit Ethernet
     o   Marvell Yukon 88E8062CU Gigabit Ethernet
     o   Marvell Yukon 88E8062 SX/LX Gigabit Ethernet
     o   Marvell Yukon 88E8035 Gigabit Ethernet
     o   Marvell Yukon 88E8036 Gigabit Ethernet
     o   Marvell Yukon 88E8038 Gigabit Ethernet
     o   Marvell Yukon 88E8039 Gigabit Ethernet
     o   Marvell Yukon 88E8050 Gigabit Ethernet
     o   Marvell Yukon 88E8052 Gigabit Ethernet
     o   Marvell Yukon 88E8053 Gigabit Ethernet
     o   Marvell Yukon 88E8055 Gigabit Ethernet
     o   Marvell Yukon 88E8056 Gigabit Ethernet
     o   Marvell Yukon 88E8058 Gigabit Ethernet
     o   SysKonnect SK-9Sxx Gigabit Ethernet
     o   SysKonnect SK-9Exx Gigabit Ethernet


LOADER TUNABLES

     Tunables can be set at the loader(8) prompt before booting the kernel or
     stored in loader.conf(5).

     hw.mskc.msi.enable
             The driver supports MSI but it is turned off by default.  It can
             be enabled by setting this tunable to 1.


SEE ALSO

     altq(4), arp(4), ifmedia(4), miibus(4), netintro(4), ng_ether(4),
     ifconfig(8)


HISTORY

     The msk driver was written by Pyun YongHyeon <yongari@FreeBSD.org> and it
     is based on sk(4) and Marvell's FreeBSD driver.  It first appeared in
     DragonFly 1.11.

DragonFly 3.9                  November 20, 2014                 DragonFly 3.9

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