From: "Kok, Auke" <auke-jan.h.kok@intel.com>
To: Marc Sigler <marc.sigler@mediatvcom.com>
Cc: netdev@vger.kernel.org, linux-net@vger.kernel.org
Subject: Re: 82557/8/9 Ethernet Pro 100 interrupt mitigation support
Date: Tue, 04 Sep 2007 08:56:04 -0700 [thread overview]
Message-ID: <46DD8014.7000408@intel.com> (raw)
In-Reply-To: <46DBE2E7.7070906@mediatvcom.com>
Marc 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?
> 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?
the software developers manual for this part is available on our e1000.sf.net
page here:
http://downloads.sourceforge.net/e1000/OpenSDM_55x_10c.pdf?modtime=1040083200&big_mirror=0
e100 hardware (as far as I can see from the specs) doesn't support any irq
mitigation, so you'll need to run in NAPI mode if you want to throttle irq's.
the in-kernel e100 already runs in NAPI mode, so that's already covered.
beware that the eepro100 driver is scheduled for removal (2.6.25 or so).
Cheers,
Auke
next prev parent reply other threads:[~2007-09-04 15:56 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-03 10:33 82557/8/9 Ethernet Pro 100 interrupt mitigation support Marc Sigler
2007-09-04 15:56 ` Kok, Auke [this message]
2007-09-04 16:12 ` Brandeburg, Jesse
2007-09-04 16:41 ` John Sigler
2007-09-04 20:32 ` Brandeburg, Jesse
-- strict thread matches above, loose matches on Subject: below --
2007-09-03 10:36 John Sigler
2007-09-03 13:09 ` John Sigler
2007-09-03 13:33 ` James Chapman
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