Date: Fri, 12 Mar 2010 10:44:55 -0800 From: Pyun YongHyeon <pyunyh@gmail.com> To: freebsd-current@FreeBSD.org Subject: Re: CFT: msk(4) Rx checksum offloading support Message-ID: <20100312184455.GJ16314@michelle.cdnetworks.com> In-Reply-To: <20100306225248.GA20677@michelle.cdnetworks.com> References: <20100306225248.GA20677@michelle.cdnetworks.com>
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On Sat, Mar 06, 2010 at 02:52:48PM -0800, Pyun YongHyeon wrote: > Finally I managed to understand how Rx checksum offloading works on > Yukon II controllers. The patch at the following URL will add Rx > checksum offloading support to msk(4) controllers. > http://people.freebsd.org/~yongari/msk/msk.csum.patch > The patch was generated against HEAD. > > Controllers(Yukon Extreme and Yukon FE+) which use more matured Rx > checksum offloading does not need this patch. msk(4) already > supported Rx checksum offloading for these controllers. This patch > is for old Yukon controllers(Yukon EC, Yukon EC Ultra, Yukon FE and > Yukon Ultra2). Due to known issues, Rx checksum offloading for > Yukon XL was still disabled. > I did not see much differences with/without Rx checksum offloading > on my box but I guess it may show some differences on notebook > systems. The patch also includes some diagnostic message like > "Rx checksum value mismatch!" to detect possible hardware checksum > logic failure so if you see this message please let me know. > For the record, the patch committed to HEAD(r205091).
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