Date: Wed, 27 Mar 2013 15:13:17 -0700 From: Matthew Jacob <mjacob@freebsd.org> To: freebsd-current@freebsd.org Subject: Re: Any objections/comments on axing out old ATA stack? Message-ID: <51536EFD.4060202@freebsd.org> In-Reply-To: <51536306.5030907@FreeBSD.org> References: <51536306.5030907@FreeBSD.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On 3/27/2013 2:22 PM, 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? Does anybody have good ideas why we should not > drop it now? > Some people have expressed performance concerns about ATA_CAM. I have not validated those concerns. Does anyone know of any?
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?51536EFD.4060202>