Date: Mon, 14 Oct 2002 13:59:00 -0700 (PDT) From: John Polstra <jdp@polstra.com> To: net@freebsd.org Cc: hykim@cs.rice.edu Subject: Re: Tigon 3 bad checksums on TCP packets Message-ID: <200210142059.g9EKx0sY022550@vashon.polstra.com> In-Reply-To: <Pine.GSO.4.33.0210111723110.9821-100000@frosty.cs.rice.edu> References: <Pine.GSO.4.33.0210111723110.9821-100000@frosty.cs.rice.edu>
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In article <Pine.GSO.4.33.0210111723110.9821-100000@frosty.cs.rice.edu>, Hyong-Youb Kim <hykim@cs.rice.edu> wrote: > > Thanks. I resolved the issue by forcing BGE_PCI_WRITE_BNDRY_16BYTES > in BGE_PCI_DMA_RW_CTL register. The linux driver apparently has a DMA test > code and sets this value depending on the test results. I have no clue as > to why this configuration messes up TCP receive packets and not UDP > packets. I notice that everybody who's reported this problem has an Athlon. I guess there must be a bad interaction with the Athlon chipsets. I don't know why you're seeing the problem only on TCP packets. John -- John Polstra John D. Polstra & Co., Inc. Seattle, Washington USA "Disappointment is a good sign of basic intelligence." -- Chögyam Trungpa To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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