Date: Mon, 8 Jul 2002 19:41:47 -0500 (CDT) From: Mike Silbersack <silby@silby.com> To: David Greenman-Lawrence <dg@root.com> Cc: Peter Wemm <peter@wemm.org>, Luigi Rizzo <luigi@FreeBSD.org>, Don Lewis <dl-freebsd@catspoiler.org>, <cvs-committers@FreeBSD.org>, <cvs-all@FreeBSD.org> Subject: Re: cvs commit: src/sys/dev/fxp if_fxp.c Message-ID: <20020708194025.W19349-100000@patrocles.silby.com> In-Reply-To: <20020708171508.E71311@nexus.root.com>
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On Mon, 8 Jul 2002, David Greenman-Lawrence wrote: > I suspect that Luigi doesn't understand how the fxp driver transmit side > works, especially in the way that transmit interrupts are done. Transmit > interrupts are only generated as a way of garbage collection when there > are no more descriptors available. This is an important optimization and > is a fundamental difference from the way most other drivers work. > In other words, transmit interrupts don't happen for every packet (or > even set of packets) like I think Luigi is expecting. > > -DG However, the descriptors will be cleaned up once per second in any case, correct? If that is true, then the change only needs the slight tweak I posted a few hours ago, but will otherwise work correctly. Mike "Silby" Silbersack To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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