Subject: Re: DMA beyond end of ISA with other scsi cards?
To: Justin T. Gibbs <firstname.lastname@example.org>
From: Scott Reynolds <scottr@Plexus.COM>
Date: 11/13/1996 11:12:57
On Tue, 12 Nov 1996, Justin T. Gibbs wrote:
> Well considering Leonard's sources, I doubt that he is wrong. Here is
> what the Linux Buslogic driver has to say about this:
> BusLogic BT-445S Host Adapters prior to board revision E have a
> hardware bug whereby when the BIOS is enabled, transfers to/from the
> same address range the BIOS occupies modulo 16MB are handled
> incorrectly. Only properly functioning BT-445S boards have firmware
> version 3.37, so we require that ISA Bounce Buffers be used for the
> buggy BT-445S models if there is more than 16MB memory.
My board has firmware version 3.37; does the comment above mean that this
is why I'm not having any problems? It isn't clear to me exactly what the
above means, at any rate. :-)