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Re: High interrupt rate even when using NAPI

from [David S. Miller] [Permanent Link][Original]
To: Steve Modica <modica@xxxxxxx>
Subject: Re: High interrupt rate even when using NAPI
From: "David S. Miller" <davem@xxxxxxxxxx>
Date: Wed, 5 Nov 2003 10:07:50 -0800
Cc: netdev@xxxxxxxxxxx
In-reply-to: <3FA93B82.5070508@xxxxxxx>
References: <3FA93B82.5070508@xxxxxxx>
Sender: netdev-bounce@xxxxxxxxxxx 
On Wed, 05 Nov 2003 12:03:46 -0600
Steve Modica <modica@xxxxxxx> wrote:

> I just noticed some strange behavior with the tg3 driver.

The tg3 driver needs to poke the chip a hundred times per
second in order to work around a hardware bug, eack poke
causes an interrupt.  This is needed regardless of whether
the chip is processing packets or not.
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