Date: Thu, 28 May 1998 12:37:12 +0930 From: Greg Lehey <grog@lemis.com> To: Karl Pielorz <kpielorz@caladan.tdx.co.uk>, current@FreeBSD.ORG Subject: Re: aha1542 - again... Message-ID: <19980528123712.H4179@freebie.lemis.com> In-Reply-To: <Pine.BSF.3.96.980528000408.626A-100000@caladan.tdx.co.uk>; from Karl Pielorz on Thu, May 28, 1998 at 12:07:15AM %2B0100 References: <Pine.BSF.3.96.980528000408.626A-100000@caladan.tdx.co.uk>
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On Thu, 28 May 1998 at 0:07:15 +0100, Karl Pielorz wrote: > > Hi, > > I read a while ago there were problems with the existing AHA1542 support > on -current... I also read that someone (I can't remember now who it was) > said they'd been through the code and fixed up a few things... > > As I remember it was a problem to do with bounce buffers... > > I've just had to add a 1542CF to my machine (as I'm out PCI slots and it > was 'hanging around'), and I've run into problems with it - but I'm not > sure there to do with bounce buffers etc. > > I know CAM is looking almost 'immanent' - but can anyone confirm whether > the 1542 driver is in any useable state in -current at the moment? I'm developing vinum on a -CURRENT machine with a 1542B. I had trouble with a 1542A, which appears to be a known problem (a number 0f 0xff bytes strewn at regular intervals, usually 32K), but the 1542B is working fine. > I have 2 x Double-Speed CD-ROM drives hooked up to it, I wouldn't have > thought they were particularly 'stressy' for the driver ;-) Do you have problems? You'll need bounce buffers for any ISA DMA device if you have more than 16 MB memory. Greg -- See complete headers for address and phone numbers finger grog@lemis.com for PGP public key To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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