Date: Thu, 17 Jun 1999 21:15:41 -0700 (PDT) From: mike@hyperreal.org To: grog@lemis.com (Greg Lehey) Cc: freebsd-questions@freebsd.org Subject: Re: Optimizing IDE performance revisited Message-ID: <19990618041541.5256.qmail@hyperreal.org> In-Reply-To: <19990618092337.O9893@freebie.lemis.com> from Greg Lehey at "Jun 18, 1999 09:23:37 am"
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Greg Lehey wrote: > > Now this is odd. The BIOS is set to enable 32-bit transfers. > > Wonder why it's not coming up here like it is on yours. > > It's a feature of the controller chip set. Yours obviously doesn't > support DMA. I was asking about 32-bit transfers. According to the driver flags, DMA support (0x2000) and 32-bit transfer support (0x8000) are two different things. Or is it not possible to have 32-bit transfers without DMA? (I realize, of course, that the EIDE FAQ says 32-bit transfers are somewhat of a misnomer and aren't going to improve speed noticeably). To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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