Date: Tue, 1 Oct 2002 11:19:08 -0700 (PDT) From: Nate Lawson <nate@root.org> To: Chuck McCrobie <mccrobie@cablespeed.com> Cc: scsi@FreeBSD.org Subject: Re: Current problem reports assigned to you Message-ID: <Pine.BSF.4.21.0210011114370.85911-100000@root.org> In-Reply-To: <3D98EECB.8ED06AD7@cablespeed.com>
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On Mon, 30 Sep 2002, Chuck McCrobie wrote: > Nate Lawson wrote: > > > > I'll revisit the quirks stuff this week and commit them if everything is > > kosher. I'm afraid we're stuck with quirks for now when the devices truly > > do not support 6 byte CDBs. > > > > -Nate > > > [problem reports snipped] > > I guess I've missed most of the discussion about the 6 byte CDBs. Why > not issue 10 byte CDB first, then fall back to 6-byte if that fails > (ILLEGAL COMMAND, etc.) instead of trying 6-byte CDB first, then falling > back to 10-byte? > > Are there any devices which hang on 10-byte CDB's but work with 6-byte > CDBs? Surely most devices are SCSI-1 and should at least recognize that > a 10-byte CDB is illegal? I don't believe that is legal for certain devices but I'm vague on which ones. The "right" fix is to make cdb size an aspect of the transport type but that won't be available until the CAM reworking is done. -Nate To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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