From mboxrd@z Thu Jan 1 00:00:00 1970 From: "H. Peter Anvin" Subject: Re: ultrastor.c is a bit-rot Date: Sun, 23 Mar 2008 09:24:03 -0700 Message-ID: <47E68423.2010507@zytor.com> References: <47DE8736.8020405@panasas.com> <20080317152344.GE26285@parisc-linux.org> <47E41D7D.9050409@zytor.com> <47E628DF.6070301@panasas.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from terminus.zytor.com ([198.137.202.10]:41180 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752846AbYCWQ3Q (ORCPT ); Sun, 23 Mar 2008 12:29:16 -0400 In-Reply-To: <47E628DF.6070301@panasas.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Boaz Harrosh Cc: Matthew Wilcox , James Bottomley , linux-scsi , Andrew Morton , linux-kernel Boaz Harrosh wrote: > On Fri, Mar 21 2008 at 22:41 +0200, "H. Peter Anvin" wrote: >> Matthew Wilcox wrote: >>> VESA Local Bus. It was (in some sense) the predecessor of AGP. We >>> treat it like ISA inside the kernel. On x86, EISA depends on ISA, so >>> the dependency, while wrong, does not affect any x86 users who have an >>> EISA card. >>> >> Well, one can say VLB was to ISA (a souped-up ISA bus with some of the >> worst limitations removed) what AGP is to PCI... >> >> -hpa > > Hmm interesting, so someone took the VGA thing and made a storage device > for it. Did that ever happen with AGP? Any AGP scsi cards. I guess I can > Google for it. A lot less likely, IMO. Unlike AGP-PCI, VLB slots were compatible with ISA cards, and the electricals were less complex, so several motherboard manufacturers built boards with 3 or more VESA slots (I think I saw a board with 6 at one point.) AGP electricals pretty much require that it be point to point. -hpa