Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751781AbWKBNEV (ORCPT ); Thu, 2 Nov 2006 08:04:21 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752594AbWKBNEV (ORCPT ); Thu, 2 Nov 2006 08:04:21 -0500 Received: from pollux.ds.pg.gda.pl ([153.19.208.7]:30212 "EHLO pollux.ds.pg.gda.pl") by vger.kernel.org with ESMTP id S1752553AbWKBNEU (ORCPT ); Thu, 2 Nov 2006 08:04:20 -0500 Date: Thu, 2 Nov 2006 13:04:12 +0000 (GMT) From: "Maciej W. Rozycki" To: Matthew Wilcox cc: Randy Dunlap , Jun Sun , linux-scsi@vger.kernel.org, lkml Subject: Re: unchecked_isa_dma and BusLogic SCSI controller In-Reply-To: <20061102124128.GC31830@parisc-linux.org> Message-ID: References: <20061101235330.GA30843@srv.junsun.net> <20061101173358.7b027d13.randy.dunlap@oracle.com> <20061102124128.GC31830@parisc-linux.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 833 Lines: 24 On Thu, 2 Nov 2006, Matthew Wilcox wrote: > > > It is hard for me to see why BusLogic controller would only do DMA > > > in low 16MB. Is there a fix for this? > > > > Does anyone know that controller hardware and its limitations? > > I don't, but: > > if (pci_set_dma_mask(PCI_Device, DMA_32BIT_MASK )) > continue; > > So somebody thinks the device can do 32-bit addressing. I would expect > that setting unchecked_isa_dma is a historical mistake. However, I > don't have any cards of this type to test. It could be related to the non-PCI variations of the board. Maciej - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/