Date: Sun, 8 Jun 2003 22:06:10 -0400 (EDT) From: Garrett Wollman <wollman@lcs.mit.edu> To: Juli Mallett <jmallett@FreeBSD.org> Cc: cvs-all@FreeBSD.org Subject: cvs commit: src/sys/alpha/conf GENERIC src/sys/i386/conf GENERIC src/sys/ia64/conf GENERIC src/sys/pc98/conf GENERIC src/sys/powerpc/conf GENERIC src/sys/sparc64/conf GENERIC Message-ID: <200306090206.h5926ADZ052723@khavrinen.lcs.mit.edu> In-Reply-To: <200306080203.h58232U8007150@repoman.freebsd.org> References: <200306080203.h58232U8007150@repoman.freebsd.org>
next in thread | previous in thread | raw e-mail | index | archive | help
<<On Sat, 7 Jun 2003 19:03:02 -0700 (PDT), Juli Mallett <jmallett@FreeBSD.org> said: > Note that scbus is required for SCSI, not just "required" in general. This is either redundant or misleading. The scbus device is clearly listed in the section labeled SCSI, so from that perspective the comment was already sufficiently specific. The whole section is, however, too specific. Most users think of SCSI as referring to the SCSI Parallel Interface, or SPI; however, there are many kinds of physical interfaces which belong to the SCSI Architecture, and use one of more of the SCSI peripheral drivers. All of them require `device scbus' and the CAM subsystem. These include: - Fibre Channel (isp) - IEEE 1394 (sbp) - Serial-Attach SCSI (not supported in FreeBSD yet) ATA-PI is not an official SCSI transport but uses SPC (SCSI Primary Commands) and the peripheral command sets (principally MMC-[234]). USB Mass Storage seems to have a similar status, except that most devices are SBC or RBC rather than MMC. Yes, I have spent most of this weekend reading T10 drafts, why do you ask? -GAWollman
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200306090206.h5926ADZ052723>