sk98lin.4

这是Marvell Technology Group Ltd. 4355 (rev 12)网卡在linux下的驱动程序源代码

.\" (C)Copyright 1999-2008 Marvell(R). -- [e-mail]
.\" sk98lin.4 1.1 %_%LINDATE%_%
.\" This manpage can be viewed using `groff -Tascii -man sk98lin.4 | less`
.\"
.TH SK98LIN 4 "%_%LINDATE%_%" "sk98lin 10.60.2.3"
.SH NAME
sk98lin \- Marvell/SysKonnect Gigabit Ethernet driver v10.60.2.3
.SH SYNOPSIS
.B insmod sk98lin.o
.RB [ Speed_A=\c
.IR i,j,... ]
.RB [ Speed_B=\c
.IR i,j,... ]
.RB [ AutoNeg_A=\c
.IR i,j,... ]
.RB [ AutoNeg_B=\c
.IR i,j,... ]
.RB [ DupCap_A=\c
.IR i,j,... ]
.RB [ DupCap_B=\c
.IR i,j,... ]
.RB [ FlowCtrl_A=\c
.IR i,j,... ]
.RB [ FlowCtrl_B=\c
.IR i,j,... ]
.RB [ Role_A=\c
.IR i,j,... ]
.RB [ Role_B=\c
.IR i,j,... ]
.RB [ ConType=\c
.IR i,j,... ]
.RB [ TxModeration=\c
.IR i,j,... ]
.RB [ Moderation=\c
.IR i,j,... ]
.RB [ IntsPerSec=\c
.IR i,j,... ]
.RB [ PrefPort=\c
.IR i,j,... ]
.RB [ RlmtMode=\c
.IR i,j,... ]
.RB [ LowLatency=\c
.IR i,j,... ]
.RB [ BroadcastPrio=\c
.IR i,j,... ]
.SH DESCRIPTION
.B sk98lin
is the Gigabit Ethernet driver for Marvell and SysKonnect network adapter cards.
It supports SysKonnect SK-98xx/SK-95xx compliant Gigabit Ethernet Adapter and any Yukon compliant chipset.

When loading the driver using 
.BR insmod (8)
, parameters for the network adapter cards might be stated as a sequence of comma separated commands. If for instance two network adapters are installed and AutoNegotiation on Port A of the first adapter should be ON, but on the Port A of the second adapter switched OFF, one must enter:

   insmod sk98lin.o AutoNeg_A=On,Off

After 
.B sk98lin 
is bound to one or more adapter cards and the 
.IR /proc 
filesystem is mounted on your system, a dedicated statistics file will be created in folder 
.IR /proc/net/sk98lin 
for all ports of the installed network adapter cards. Those files are named 
.IR eth[x]
whereby 
.IR x 
is the number of the interface that has been assigned to a dedicated port by the system.

If loading is finished, any desired IP address can be assigned to the respective 
.IR eth[x]
interface using the 
.BR ifconfig (8)
command. This causes the adapter to connect to the Ethernet and to display a status message on the console saying "ethx: network connection up using port y" followed by the configured or detected connection parameters.

The 
.B sk98lin 
also supports large frames (also called jumbo frames). Using jumbo frames can improve throughput tremendously when transferring large amounts of data. To enable large frames, the MTU (maximum transfer unit) size for an interface is to be set to a high value. The default MTU size is 1500 and can be changed up to 9000 (bytes). Setting the MTU size can be done when assigning the IP address to the interface or later by using the
.BR ifconfig (8)
command with the mtu parameter. If for instance eth0 needs an IP address and a large frame MTU size, the following two commands might be used:

    ifconfig eth0 10.1.1.1
    ifconfig eth0 mtu 9000

Those two commands might even be combined into one:

    ifconfig eth0 10.1.1.1 mtu 9000

Note that large frames can only be used if your network infrastructure allows to do so. This means, that any switch being used in your Ethernet must also support large frames. Quite some switches support large frames, but need to be configured to do so. Most of the times, their default setting is to support only standard frames with an MTU size of 1500 (bytes). In addition to the switches inside the network, all network adapters that are to be used must also be enabled regarding jumbo frames. If an adapter is not set to receive large frames it will simply drop them. 

Switching back to the standard Ethernet frame size can be done by using the
.BR ifconfig (8)
command again:

    ifconfig eth0 mtu 1500

The Marvell/SysKonnect Gigabit Ethernet driver for Linux is able to support VLAN and Link Aggregation according to IEEE standards 802.1, 802.1q, and 802.3ad. Those features are only available after installation of open source modules which can be found on the Internet:

.IR VLAN \c
: http://www.candelatech.com/~greear/vlan.html
.br
.IR Link 
.IR Aggregation \c
: http://www.st.rim.or.jp/~yumo

.br
Note that Marvell/SysKonnect does not offer any support for these open source modules and does not take the responsibility for any kind of failures or problems arising when using these modules.
.SH PARAMETERS
.TP
.BI Speed_A= i,j,...
This parameter is used to set the speed capabilities of port A of an adapter card. It is only valid for Yukon copper adapters. Possible values are:
.IR 10
,
.IR 100
,
.IR 1000
or
.IR Auto 
whereby
.IR Auto 
is the default. Usually, the speed is negotiated between the two ports during link establishment. If this fails, a port can be forced to a specific setting with this parameter.
.TP
.BI Speed_B= i,j,...
This parameter is used to set the speed capabilities of port B of an adapter card. It is only valid for Yukon copper adapters. Possible values are:
.IR 10
,
.IR 100
,
.IR 1000
or
.IR Auto 
whereby
.IR Auto 
is the default. Usually, the speed is negotiated between the two ports during link establishment. If this fails, a port can be forced to a specific setting with this parameter.
.TP
.BI AutoNeg_A= i,j,...
Enables or disables the use of autonegotiation of port A of an adapter card. Possible values are:
.IR On
,
.IR Off
or
.IR Sense
whereby
.IR On
is the default. The 
.IR Sense 
mode automatically detects whether the link partner supports auto-negotiation or not.
.TP
.BI AutoNeg_B= i,j,...
Enables or disables the use of autonegotiation of port B of an adapter card. Possible values are:
.IR On
,
.IR Off
or
.IR Sense
whereby
.IR On
is the default. The 
.IR Sense 
mode automatically detects whether the link partner supports auto-negotiation or not.
.TP
.BI DupCap_A= i,j,...
This parameter indicates the duplex mode to be used for port A of an adapter card. Possible values are:
.IR Half
,
.IR Full
or
.IR Both
whereby
.IR Both
is the default. This parameter is only relevant if AutoNeg_A of port A is not set to 
.IR Sense.
If AutoNeg_A is set to 
.IR On
, all three values of DupCap_A (
.IR Half
, 
.IR Full
or 
.IR Both
) might be stated. If AutoNeg_A is set to 
.IR Off
, only DupCap_A values  
.IR Full
and 
.IR Half
are allowed. This DupCap_A parameter is useful if your link partner does not support all possible duplex combinations.
.TP
.BI DupCap_B= i,j,...
This parameter indicates the duplex mode to be used for port B of an adapter card. Possible values are:
.IR Half
,
.IR Full
or
.IR Both
whereby
.IR Both
is the default. This parameter is only relevant if AutoNeg_B of port B is not set to
.IR Sense.
If AutoNeg_B is set to
.IR On
, all three values of DupCap_B (
.IR Half
,
.IR Full
or
.IR Both
) might be stated. If AutoNeg_B is set to
.IR Off
, only DupCap_B values
.IR Full
and
.IR Half
are allowed. This DupCap_B parameter is useful if your link partner does not support all possible duplex combinations.
.TP
.BI FlowCtrl_A= i,j,...
This parameter can be used to set the flow control capabilities the port reports during auto-negotiation. Possible values are:
.IR Sym
,
.IR SymOrRem
,
.IR LocSend
or
.IR None
whereby
.IR SymOrRem
is the default.  The different modes have the following meaning: 

.br
.IR Sym
= Symmetric 
 both link partners are allowed to send PAUSE frames
.br
.IR SymOrRem
= SymmetricOrRemote 
 both or only remote partner are allowed to send PAUSE frames
.br
.IR LocSend
= LocalSend
 only local link partner is allowed to send PAUSE frames
.br
.IR None
= None
 no link partner is allowed to send PAUSE frames

Note that this parameter is ignored if AutoNeg_A is set to
.IR Off .
.TP
.BI FlowCtrl_B= i,j,...
This parameter can be used to set the flow control capabilities the port reports during auto-negotiation. Possible values are:
.IR Sym