Re: disable 64-bit dma for one PCI slot only?

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From
Stefan Esser <se@freebsd.org>
Date
20 Jul 2011 20:35:29
Subject
Re: disable 64-bit dma for one PCI slot only?
Message-ID
4E273C09.8090505@freebsd.org

In reply to

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On 20.07.2011 18:25, YongHyeon PYUN wrote:
>> The "Rev" column is required for of devices that are not uniquely
>> identified by their Vnd/Dev-IDs. (These used to exist, e.g. the Symbios
>> SCSI controllers, though I'm not aware of any device that needed a
>> different driver depending on the PCI revision number.)
>>
>
> re(4) and rl(4) are one of example that needs the "Rev".

Does the decision whether "re" or "rl" attaches the device depend
on the revision field? This used to be the case for "ncr" and "sym",
too, but one driver was extended to cover all devices supported by
the other ...

Anyway: I agree that the revision is significant information and
should be kept in pciconf output.

Regards, STefan

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