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Software router state of the art

Subject: Software router state of the art
From: fw at deneb.enyo.de (Florian Weimer)
Date: Sat, 26 Jul 2008 22:29:56 +0200
In-reply-to: <[email protected]> (William Herrin's message of "Sat, 26 Jul 2008 15:46:50 -0400")
References: <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]>

* William Herrin:

> The pro/1000 does not need to generate an interrupt in order to start
> a DMA transfer? Can you refer me to some documents which explain in
> detail how a card on the bus sets up a DMA transfer?

Busmaster DMA does not generate an interrupt on the host CPU.  The
interrupt is used to trigger processing on the host CPU; it can be
deferred until several frames have been written.

References:
- Software router state of the art
  - From: herrin-nanog at dirtside.com (William Herrin)
- Software router state of the art
  - From: oberman at es.net (Kevin Oberman)
- Software router state of the art
  - From: herrin-nanog at dirtside.com (William Herrin)
- Software router state of the art
  - From: petri at helenius.fi (Petri Helenius)
- Software router state of the art
  - From: herrin-nanog at dirtside.com (William Herrin)

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