From: David Miller <davem@davemloft.net>
To: gallatin@myri.com
Cc: netdev@vger.kernel.org, loic@myri.com
Subject: Re: [PATCH net-next 2.6] myri10ge: DCA update (resubmit)
Date: Wed, 29 Sep 2010 19:49:01 -0700 (PDT) [thread overview]
Message-ID: <20100929.194901.191389574.davem@davemloft.net> (raw)
In-Reply-To: <4CA23038.3030808@myri.com>
From: Andrew Gallatin <gallatin@myri.com>
Date: Tue, 28 Sep 2010 14:13:12 -0400
> This patch contains the following DCA improvements to myri10ge:
>
> 1) Finally move myri10ge to use dca3 API
>
> 2) Disable PCIe relaxed ordering when enabling DCA on
> myri10ge. This provides a performance boost on Nehalem
> based Xeons
>
> 3) Make sure to properly initialize NIC's DCA state when it is
> enabled,
> rather than giving the NIC a bogus tag (0) and waiting for
> the first received packet to trigger an update. Not using a
> real tag can cause hardware exceptions on some motherboards
> when a CPU socket is empty.
>
> 3) Always update the cached CPU when our interrupt affinity changes
> so as to avoid excessive calls to dca3_get_tag()
>
> Signed-off-by: Andrew Gallatin <gallatin@myri.com>
> Signed-off-by: Loic Prylli <loic@myri.com>
Applied.
prev parent reply other threads:[~2010-09-30 2:48 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-28 18:13 [PATCH net-next 2.6] myri10ge: DCA update (resubmit) Andrew Gallatin
2010-09-30 2:49 ` David Miller [this message]
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