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From: Chris Snook <csnook@redhat.com>
To: "Jay L. T. Cornwall" <jay@esuna.co.uk>
Cc: Luca Tettamanti <kronos.it@gmail.com>,
	Jeff Garzik <jgarzik@pobox.com>,
	Jay Cliburn <jacliburn@bellsouth.net>,
	linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH] atl1: disable 64bit DMA
Date: Mon, 25 Jun 2007 17:57:20 -0400	[thread overview]
Message-ID: <46803A40.4070009@redhat.com> (raw)
In-Reply-To: <468038FC.6090302@esuna.co.uk>

Jay L. T. Cornwall wrote:
> Chris Snook wrote:
> 
>> What boards have we seen this on?  It's quite possible this is:
> 
> I can reproduce on an Asus P5K with a Core 2 Duo E6600.
> 
> lspci identifies the controller as:
>   02:00.0 Ethernet controller: Attansic Technology Corp. L1 Gigabit
>   Ethernet Adapter (rev b0)
> 
> dmesg notes the PCI-DMA mapping implementation:
>   PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
> 

I had a hunch this was on Intel.  I'd rather just disable this when swiotlb is 
in use, unless we get more complaints.  It's probably ultimately a BIOS quirk 
anyway.

	-- Chris

  reply	other threads:[~2007-06-25 21:57 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <467B12CA.5060405@esuna.co.uk>
     [not found] ` <467BE118.4090308@redhat.com>
     [not found]   ` <467BE4F1.7040308@esuna.co.uk>
     [not found]     ` <467D0EB0.9030100@esuna.co.uk>
     [not found]       ` <20070624125957.2e27820c@osprey.hogchain.net>
     [not found]         ` <467ED4A8.4080500@esuna.co.uk>
     [not found]           ` <20070624164519.04f215b8@osprey.hogchain.net>
     [not found]             ` <467FB237.2030703@esuna.co.uk>
     [not found]               ` <467FB844.6060702@bellsouth.net>
2007-06-25 21:18                 ` [PATCH] atl1: disable 64bit DMA Luca Tettamanti
2007-06-25 21:36                   ` Chris Snook
2007-06-25 21:51                     ` Jay L. T. Cornwall
2007-06-25 21:57                       ` Chris Snook [this message]
2007-06-25 23:00                         ` Jay Cliburn
2007-06-25 23:17                           ` Jeff Garzik
2007-06-25 23:40                             ` Chris Snook
2007-06-26 21:12                             ` Luca
2007-06-27  0:16                   ` Jay Cliburn

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