Any objections/comments on axing out old ATA stack?

Alexander Motin mav at
Wed Mar 27 21:35:40 UTC 2013

On 27.03.2013 23:32, Steve Kargl wrote:
> On Wed, Mar 27, 2013 at 11:22:14PM +0200, Alexander Motin wrote:
>> Hi.
>> Since FreeBSD 9.0 we are successfully running on the new CAM-based ATA
>> stack, using only some controller drivers of old ata(4) by having
>> `options ATA_CAM` enabled in all kernels by default. I have a wish to
>> drop non-ATA_CAM ata(4) code, unused since that time from the head
>> branch to allow further ATA code cleanup.
>> Does any one here still uses legacy ATA stack (kernel explicitly built
>> without `options ATA_CAM`) for some reason, for example as workaround
>> for some regression?
> Yes, I use the legacy ATA stack.

On 9.x or HEAD where new one is default?

>> Does anybody have good ideas why we should not drop
>> it now?
> Because it works?

Any problems with new one?

Alexander Motin

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