Date: Fri, 01 Nov 1996 19:31:31 +0000 From: Matt Thomas <matt@lkg.dec.com> To: Terry Lambert <terry@lambert.org> Cc: freebsd-hackers@freefall.freebsd.org Subject: Re: VM answer requested Message-ID: <199611011931.TAA15517@whydos.lkg.dec.com> In-Reply-To: Your message of "Fri, 01 Nov 1996 14:35:35 MST." <199611012135.OAA28514@phaeton.artisoft.com>
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> > > What about the aligned access bit in recent Intel processors? > > > I'd also like to get kernel faults if this happens in the kernel > > > (it is my opinion that it should never be allowed to happen in the > > > kernel, and there should be a sanitization pass to insure it). > > > > Don't use the de driver then. Because of a misfeature in the 21x4x > > chips, the Ethernet payload (the stuff after the header) is not longword > > aligned). Having the processor deal with unaligned data is much faster > > than copying the data so that it is aligned. > > How will this driver work with an Alpha or MIPs processor, BTW? It's > a DEC card, you'd expect it to work with both... #if defined(__alpha__) #define TULIP_COPY_RXDATA 1 #endif -- Matt Thomas Internet: matt@3am-software.com 3am Software Foundry WWW URL: http://www.3am-software.com/bio/matt.html Westford, MA Disclaimer: I disavow all knowledge of this message
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