Intel PCI Benutzerhandbuch

DSS NETWORKS, INC. 

Version: 2.6 

  Page: 32 

The following parameters are used by entering them on the command line with the 
modprobe or insmod command. For example, with Intel based card model (ex. 5262, 
5164, etc.) entering:  

insmod dpm [ChipSelector=1] IntrHoldOff=0  

loads the dpm driver setting it for Intel chipset and setting the Interrupt Holdoff latency to 
zero (disabled).  

 

SetAutoNeg 

0,1 1 

This parameter specifies the enabling of auto 
negotiation. 

DuplexMode 

0,1,2 
 
(0=half, 1=full, 
 2=both) 

1 

Defines the direction in which data is allowed to 
flow. Can be either one or two-directional. If both. 
If auto negotiation is enabled, defines modes 
advertised. If auto negotiation is disabled sets 
duplex to this value. 

PauseFlowEn 

0, 1 

1 

This parameter enables or disables pause frame 
flow control (typically enabled). 

IntrHoldOff 

0, 1 or 2 (0=off) 

1 

This value delays the generation of receive 
interrupts in units of 100 microseconds. Receive 
interrupt reduction can improve CPU efficiency if 
properly tuned for specific network traffic. 
Increasing this value adds extra latency to frame 
reception and if set too high could decrease the 
throughput of TCP traffic.  

MediaSpeed 

10, 100, 1000 

1000 

If auto negotiation id disabled, speed forces the 
line speed to the specified value in megabits per 
second (Mbps). If auto negotiation is enabled, 
sets the highest speed advertised. 
 
(adapters using copper connections only)  

NumBufDescs 

80 - 4096 

256 

This value is the number of transmit and receive 
descriptors allocated by the driver. Increasing 
this value allows the driver to queue more 
transmit and receive buffers. Each descriptor is 
16 bytes.  

MaxMtuSize 

1500-9600 1500 

This value is the maximum mtu size supported in 
the driver. 

MaxBufferSize 

2048, 4096, 
8192, 16384 

2048 

Sets the maximum buffer size supported in the 
driver. 

AccAllUni 

0, 1 

0 

Setting this parameter to one instructs the driver