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Date:      Wed, 24 Oct 2001 22:54:15 +0200
From:      Marko Zec <zec@tel.fer.hr>
To:        net@freebsd.org, hackers@freebsd.org
Cc:        jlemon@freebsd.org
Subject:   fxp patch - bundling receive interrupts
Message-ID:  <3BD72A77.712CF51C@tel.fer.hr>

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An updated fxp driver patch for bundling receive interrupts, thus saving
a noticeable amount of CPU overhead for interrupt processing, can be
found at http://www.tel.fer.hr/zec/BSD/fxp/. New features include:
- control of microcode parameters through sysctl variables
- activation/deactivation of microcode without bringing the interface
down
- independent control of microcode parameters/activity for each fxp
interface instance
- new parameter hw.fxp.size_mask
- hw.fxp.int_delay is now defined in microseconds, instead of microcode
time-counter units

The microcode should work on many revisions - if not all - of Intel
8255* chipset, but the BSD driver is currently tested only on 82558-B0,
so I would really appreciate any feedback on driver
functionality/stability on other chipset revisions.

Have fun!



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