Date: Fri, 14 Mar 2008 16:37:36 +0100 From: Giulio Ferro <auryn@zirakzigil.org> To: pyunyh@gmail.com, Sam Leffler <sam@errno.com>, Andrew Thompson <thompsa@freebsd.org>, freebsd-net@freebsd.org Subject: Re: VLAN trunking and fragmentation Message-ID: <47DA9BC0.8030205@zirakzigil.org> In-Reply-To: <20080314122708.GG22788@cdnetworks.co.kr> References: <47D7C34E.8060805@zirakzigil.org> <47D817D2.9010306@errno.com> <47D8499A.5070605@zirakzigil.org> <20080313033029.GF16972@cdnetworks.co.kr> <47D92F9D.4070701@zirakzigil.org> <20080314001704.GA22788@cdnetworks.co.kr> <47DA4DCD.6050304@zirakzigil.org> <20080314101555.GF22788@cdnetworks.co.kr> <47DA682E.9010504@zirakzigil.org> <20080314122708.GG22788@cdnetworks.co.kr>
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Pyun YongHyeon wrote: > This hardware really make me crazy. There had been many attempts to > fix checksum offload related issues. But it seems that several users > still suffer from bad checksum or VLAN issues. So I guess the root > cause of hardware bug was not yet known. This means that previous > patch to work around hardware bug is not complete. > > Hmm, I'm not sure but it could be related with padding. What makes > me wonder is why the first packet of fragmented packet does not > show up on destination host. I guess the second packet of fragmented > packet may be composed of single mbuf. From these information I > will experiment possible combination of work around in next week. > I'll let you know when I have a code. > > Great! Thanks for the good job.
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