Date: Thu, 1 Jul 2010 08:39:34 -0400 From: Paul Mather <paul@gromit.dlib.vt.edu> To: Alexander Motin <mav@FreeBSD.org> Cc: FreeBSD Stable <freebsd-stable@FreeBSD.org> Subject: Re: Problems with ATA_CAM support in RELENG_8 Message-ID: <91399FEA-024C-4CA1-BCBD-208B41AA9C59@gromit.dlib.vt.edu> In-Reply-To: <4C2BB4A6.7040800@FreeBSD.org> References: <D77A24D9-8F38-42D4-996D-769352EE1C54@vt.edu> <AANLkTimPHAeu1lvqfgo2mX59aMPDOvu_GRJ94-GxQlz0@mail.gmail.com> <4C2B8103.6010409@FreeBSD.org> <1CD8E4CC-53C6-4594-9FF4-CDD57A6B51AC@gromit.dlib.vt.edu> <4C2BB4A6.7040800@FreeBSD.org>
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On Jun 30, 2010, at 5:18 PM, Alexander Motin wrote: > Paul Mather wrote: >>> PS: ATA_STATIC_ID is useless when ATA_CAM option enabled. >>=20 >> Thank you (and Jeremy Chadwick) for the help and information. The = kernel configuration options I used above were taken from a VirtualBox = FreeBSD/amd64 install I have that I converted over to ATA_CAM when the = code first went into RELENG_8 and it wasn't exactly clear at the time = what options were absolutely required. (I'm not even sure that "options = ATA_CAM" is needed any more, given "device ahci" implies it.) >=20 > `options ATA_CAM` enables CAM wrapper for legacy drivers, which gave = you > adaX devices instead of adX. It doesn't give major benefits, just > unifies behavior. So, does that mean if you omit "options ATA_CAM" and have "device ahci" = you will get adX devices, not adaX devices? In other words, if you have = "device ahci" (or "device siis" or "device mvs") will you will always = get adaX devices, whether or not you have "options ATA_CAM" in your = kernel config file? Does "options ATA_CAM" work with "device ata" or the modular ATA = subsystem? Is that the intended use of "options ATA_CAM": to provide = adaX devices and a CAM interface for accessing ATA devices? Cheers, Paul.=
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