|To:||Zhuang Yuyao <firstname.lastname@example.org>|
|Subject:||Re: [BUG?] cavium cn56xx and dma_map_single warning|
|From:||David Daney <email@example.com>|
|Date:||Wed, 24 Mar 2010 09:27:08 -0700|
|References:||<firstname.lastname@example.org> <4BA79E69.email@example.com> <firstname.lastname@example.org> <4BA81BC7.email@example.com> <firstname.lastname@example.org>|
|User-agent:||Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:18.104.22.168) Gecko/20100301 Fedora/3.0.3-1.fc12 Thunderbird/3.0.3|
On 03/22/2010 06:45 PM, Zhuang Yuyao wrote:
On Tue, Mar 23, 2010 at 9:39 AM, David Daney<email@example.com> wrote:The issue is maintaining mappings for 32-bit PCI devices. If you only want to support 64-bit devices, it would be easier to address the issue. David DaneyWow, that is a great news, I do not known if my adaptec 3045e raid card is a 64bit device, but if I only want to support 64bit devices, Is there a quick fix for it?
I don't know. You could try to make all DMA accesses go via BAR2. That would break many 32-bit devices though.
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