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floppy=omnibook and floppy=nodma

As the HP Omnibook has no workable DMA channel

and other hardware deliver  Unable to allocate DMA

memory  error, this argument tells the driver not to use

DMA transfers with the drive. The machine must be

at least a 486 to use nodma, and the FIFO threshold

should be set to 10 or lower to limit the number of data

transfer interrupts.

floppy=dma

Allows the driver to use DMA and is the default.

floppy=nofifo

Used to disable the FIFO entirely. If the Ethernet card

or other device declares  Bus master arbitration error 

while using the floppy, you will need to use this argument

to disable the FIFO.

floppy=fifo

Enables the FIFO and is the default.

floppy=threshold,fifo depth

This argument is relevant in DMA mode and sets the

FIFO threshold. A higher value allows the floppy driver

to tolerate more interrupt latency, while generating more

interrupts.

A lower value should lower the interrupt

latency and produces fewer interrupts.

This threshold can be tuned using the floppy control  

 messages and then later looking for Over/underrun  

retrying messages when accessing the floppy drive. If

there are a huge amount of these messages then the

threshold is set too low. Set the threshold value higher