Dss-networks C5468 Manuel d'utilisateur télécharger pdf (Page 23)

GigMAC-CPCI-3U Network Interface Cards

Gig-CPCI-3U Gigabit Ethernet Switches Board and Driver Users Manual

DSS NETWORKS, INC. DocVersion: 1.2 Page: 23

TUNING THE INSTALLATION

Interrupt holdoff (programmed latency)

To increase (or decrease) the value of the programmed interrupt latency, insert the

module and set the "IntrHoldOff" parameter as follows:

insmod ./dpm.o IntrHoldOff=1 # value can be 0, 1, 2 or 3

Note: A value greater than 3 is not recommended.

Other driver parameters that can be set during driver load or in modules.conf:

MediaSpeed=10,100,1000 # Media Speed (default 1000)

SetAutoNeg=0,1 # Setting for auto negotiation (default 1=auto)

DuplexMode=0,1 # Setting for duplex (default 1=FULL)

IntrHoldOff=0,1,2 # interrupt holdoff value in 100 microsecond

units

ChipSelector=0,1 # default=1 (Intel), 0=National

NumBufDescs=<cnt> # default=256, 128, 256, 512, 1024

MaxBufferSize=<size> # default=2048, 2048, 4096, 8192

FrameGenSize=<size> # frame generator test size (64-9000 bytes)

See “Command Line Parameters” table below for additional information on driver

module insertion parameters.

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Dss-networks C5468 Manuel d'utilisateur Page 23