I have a linux driver for a Host Bus Adapter. The maximum IO transfer size
that it receives from linux version 2.4.2-2 kernel is 32 kB. The IO
transfer size seems to be controlled by variable "request_bufflen". The
maximum value this variable can take is set perhaps somewhere in
/usr/src/linux-2.4.2/drivers/scsi. I need to know where this variable is
set so I can change it to a higher value. I don't think this is a file
system problem because this limit is there even when my program reads/writes
to a raw device.