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GigPMC Switch | Board and Driver Users Manual |
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 |
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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 |
See “Command Line Parameters” table below for additional information on driver module insertion parameters.
DSS NETWORKS, INC. | Version: 2.6 | Page: 31 |