sk —
skc
"SysKonnect XMAC II and Marvell Yukon 10/100/Gigabit Ethernet device"
SYNOPSIS
.Cd "skc* at pci?"
.Cd "sk* at skc?"
.Cd "brgphy* at mii?"
.Cd "eephy* at mii?"
.Cd "xmphy* at mii?"
DESCRIPTION
The
sk
driver provides support for SysKonnect GEnesis and Marvell Yukon
88E8001, 88E8003 and 88E8010 based Gigabit Ethernet adapters,
including the following:
3Com 3c940 single port, copper adapter
3Com 3c2000-T single port, copper adapter
Belkin F5D5005, copper adapter
D-Link DGE-530T A1, copper adapter
D-Link DGE-530T B1, copper adapter
Fujitsu PP028GE1U, multimode fiber adapter
Fujitsu PP028GE1X, multimode fiber adapter
Fujitsu PW008GE1U, copper adapter
Fujitsu PW008GE1X, copper adapter
Linksys EG1032v2, copper adapter
Linksys EG1064v2, copper adapter
SMC 9452TX, copper adapter
SysKonnect SK-9821 single port, copper adapter
SysKonnect SK-9822 dual port, copper adapter
SysKonnect SK-9841 single port, single mode fiber adapter
SysKonnect SK-9842 dual port, single mode fiber adapter
SysKonnect SK-9843 single port, multimode fiber adapter
SysKonnect SK-9521 V2.0 single port, copper adapter
SysKonnect SK-9821 V2.0 single port, copper adapter
SysKonnect SK-9843 V2.0 single port, copper adapter
The SysKonnect based adapters consist of two main components: the
XaQti Corp.\&
XMAC II Gigabit MAC (sk) and the SysKonnect GEnesis controller ASIC (skc).
The XMAC provides the Gigabit MAC and PHY support
while the GEnesis provides an interface to the PCI bus, DMA support,
packet buffering and arbitration.
The GEnesis can control up to two XMACs simultaneously,
allowing dual-port NIC configurations.
The Marvell based adapters are a single integrated circuit, but are
still presented as a separate MAC (sk) and controller ASIC (skc).
The GEnesis and Yukon 88E8001, 88E8003 and 88E8010 also support a
frame size of up to 9000 bytes.
Support for Jumbo frames is provided via the interface MTU setting.
Selecting an MTU larger than 1500 bytes with the
ifconfig(8)
utility configures the adapter to transmit Jumbo frames.
Using Jumbo frames can greatly improve performance for certain tasks,
such as file transfers and data streaming.
Hardware receive IP checksum offload for IPv4 is supported.
The
sk
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 the appropriate
hostname.if(5)
file.
-10baseT
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 (Gigabit Ethernet) operation over twisted pair.
Both
-full-duplex
and
-half-duplex
modes are supported.
-1000baseSX
Set 1000Mbps (Gigabit Ethernet) operation.
Both
-full-duplex
and
-half-duplex
modes are supported.
The
sk
driver supports the following media options:
-full-duplex
Force full duplex operation.
-half-duplex
Force half duplex operation.
For more information on configuring this device, see
ifconfig(8).
To view a list of media types and options supported by the card, try
ifconfig-m .
For example,
ifconfig-m sk0.