Date: 02 Jul 1997 16:02:30 +0100 From: Paul Richards <p.richards@elsevier.co.uk> To: Julian Elischer <julian@whistle.com> Cc: Gennadi Makhmetov <gena@ph-elec.phys.msu.su>, freebsd-hardware@FreeBSD.ORG Subject: Re: lnc device Message-ID: <57pvt17b09.fsf@tees.elsevier.co.uk> In-Reply-To: Julian Elischer's message of Tue, 01 Jul 1997 11:35:21 -0700 References: <XFMail.970701211809.gena@ph-elec.phys.msu.su> <33B94DE9.59E2B600@whistle.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Julian Elischer <julian@whistle.com> writes: > > on ISA machine. I expect I would get the best performance > > using bus mastering network cards. As I have found out, FreeBSD > > supports some such cards using the lnc driver. > > But in FAQ this driver is marked "known to have problems". In That's an out of date comment referring to PCI probing. The lnc driver didn't used to detect PCI cards. The comments by Julian about using two of these cards on an ISA bus still apply though. The problem with bus mastering above 16Mb usually doesn't have any relevance since the driver mallocs its transmit/receive buffers very soon after boot and I've never seen a case of it not getting memory below 16Mb (it fails to attach if it does). I wouldn't recommend them for what you want to do though, two bus-mastering ethernet cards on an ISA bus never worked very well. They always trod on each other's toes. -- Dr Paul Richards. [p.richards@elsevier.co.uk] Originative Solutions Ltd. [paul@originat.demon.co.uk] Phone: 0370 462071 (Mobile), +44 (0)1865 843155 (Elsevier)
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?57pvt17b09.fsf>