Date: Fri, 22 Jun 2001 16:40:37 -0400 From: "Drew Derbyshire" <avatar+pop3@kew.com> To: <questions@freebsd.org> Subject: AHC and memory mapped I/O? Message-ID: <010b01c0fb5b$97ca57f0$94cba8c0@xena>
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From LINT ... # The aic7xxx driver will attempt to use memory mapped I/O for all PCI # controllers that have it configured only if this option is set. Unfortunately, # this doesn't work on some motherboards, which prevents it from being the # default. options AHC_ALLOW_MEMI How much does this help performance, and more importantly, how does one know if it DOESN'T work on a machine? -ahd- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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