From: James Chapman <jchapman@katalix.com>
To: John Sigler <linux.kernel@free.fr>
Cc: netdev@vger.kernel.org, linux-net@vger.kernel.org
Subject: Re: 82557/8/9 Ethernet Pro 100 interrupt mitigation support
Date: Mon, 03 Sep 2007 14:33:35 +0100 [thread overview]
Message-ID: <46DC0D2F.2040902@katalix.com> (raw)
In-Reply-To: <46DBE393.30300@free.fr>
John Sigler wrote:
>
> Hello everyone,
>
> I have several systems with three integrated Intel 82559 (I *think*).
>
> Does someone know if these boards support hardware interrupt mitigation?
82558/9 hardware does, sort of. But the e100 driver doesn't use it
because it uses NAPI to minimize rx & tx interrupts.
> I.e. is it possible to configure them to raise an IRQ only if their
> hardware buffer is full OR if some given time (say 1 ms) has passed and
> packets are available in their hardware buffer.
>
> I've been using the eepro100 driver up to now, but I'm about to try the
> e100 driver. Would I have to use NAPI? Or is this an orthogonal feature?
Use NAPI. The e100 driver has been NAPI-only for a while.
--
James Chapman
Katalix Systems Ltd
http://www.katalix.com
Catalysts for your Embedded Linux software development
next prev parent reply other threads:[~2007-09-03 13:33 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-03 10:36 82557/8/9 Ethernet Pro 100 interrupt mitigation support John Sigler
2007-09-03 13:09 ` John Sigler
2007-09-03 13:33 ` James Chapman [this message]
-- strict thread matches above, loose matches on Subject: below --
2007-09-03 10:33 Marc Sigler
2007-09-04 15:56 ` Kok, Auke
2007-09-04 16:12 ` Brandeburg, Jesse
2007-09-04 16:41 ` John Sigler
2007-09-04 20:32 ` Brandeburg, Jesse
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