From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: max_sectors in libata when using md Date: Thu, 26 Aug 2004 13:54:47 -0400 Sender: linux-ide-owner@vger.kernel.org Message-ID: <412E23E7.4040402@pobox.com> References: <412DFFA9.8030504@wasp.net.au> <8746466a0408260852205a7842@mail.gmail.com> <412E1039.7030508@pobox.com> <412E135B.1030605@wasp.net.au> <412E1D3E.2050307@pobox.com> <8746466a04082610346b07ea11@mail.gmail.com> <412E2190.7030504@pobox.com> <412E22D9.2060000@wasp.net.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <412E22D9.2060000@wasp.net.au> To: Brad Campbell Cc: Dave , linux-ide@vger.kernel.org, SCSI Mailing List , RAID Linux List-Id: linux-raid.ids Brad Campbell wrote: > Jeff Garzik wrote: > >> Dave wrote: >> >>> On Thu, 26 Aug 2004 13:26:22 -0400, Jeff Garzik >>> wrote: >>> >>>> We could always eliminate lba48 max-sectors increase on VIA >>>> controllers... >> >> >> >>> Has Brad tried it with native SATA drives instead of bridges? Could be >>> VIA controllers incompatible with PATA->SATA bridges..... >> >> >> >> >> Oh wait. That's a damned good point. >> >> I wonder if there is a problem with LBA48 large transfers (>256 >> sectors) and bridges. Is Brad definitely using a bridge? I may have >> missed that detail in a flurry of emails :) > > > Yep.. using a bridge! > How to detect the bridge though? It's not terribly easy :/ If you can google for the datasheet, that would be helpful. Sometimes bridges will modify the underlying 40-char ATA model name, WD123456 ADDONICS68 where "WD123456" is the underlying ATA device, and "ADDONICS68" is the bridge identifier. Jeff