Any objections/comments on axing out old ATA stack?

Steve Kargl sgk at
Wed Mar 27 21:32:48 UTC 2013

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.

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

Because it works?


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