Date: Tue, 7 Dec 2021 13:47:37 +0300 From: =?UTF-8?B?w5Z6a2FuIEtJUklL?= <ozkan.kirik@gmail.com> To: Marek Zarychta <zarychtam@plan-b.pwste.edu.pl> Cc: Zhenlei Huang <zlei.huang@gmail.com>, "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Re: if_vlan allow to set incorrect mtu Message-ID: <CAAcX-AHs4ubte4tdrMpn4jD8ZUnCHZVjJwuLKuvjuca=EKy6Aw@mail.gmail.com> In-Reply-To: <57f47c3d-23fc-c33c-8f1f-7e66c6e2c1a6@plan-b.pwste.edu.pl> References: <20211107105130.2ccbb253@rimwks.local> <F07B770B-E17F-467A-982F-4EF34F55870E@gmail.com> <0f2883d1-80a6-29e3-46df-ab2b3ea43eaf@plan-b.pwste.edu.pl> <9AD983D7-51ED-4892-9D7F-9F9D60BED485@gmail.com> <57f47c3d-23fc-c33c-8f1f-7e66c6e2c1a6@plan-b.pwste.edu.pl>
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Please see the https://reviews.freebsd.org/D33154, igb driver doesn't honor the interface capabilities like vlanhwtag, vlan* and etc now. If you want, you can apply the patches from D33154 Regards, =C3=96zkan KIRIK On Tue, Dec 7, 2021 at 12:06 PM Marek Zarychta <zarychtam@plan-b.pwste.edu.pl> wrote: > > W dniu 7.12.2021 o 10:00, Zhenlei Huang pisze: > >> Can you please disable all vlan hardware offloading features and repea= t the test again? > >> ifconfig igb0 -vlanmtu -vlanhwtag -vlanhwfilter -vlanhwtso -vlanhwcsum > > Disabling the capabilities listed above doesn't solve the issue, but as= signing mtu 8996 to VLAN children does. > > Reproduced on the most recent 13-STABLE (13-n248421-3b936a8c889) while = testing the fix[1] > > > > Try disabling all vlan hardware offloading features in rc.conf. > > > > ifconfig_igb0=3D"mtu 9000 -vlanmtu -vlanhwtag -vlanhwfilter -vlanhwtso = -vlanhwcsum up" > > ifconfig_igb1=3D"mtu 9000 -vlanmtu -vlanhwtag -vlanhwfilter -vlanhwtso = -vlanhwcsum up" > > It doesn't change anything. I am using workaround since the early > transition to 13 branch, but recently conducted small investigation and > finally submitted the PR[1] > > [1] https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D260260 > > -- > Marek Zarychta
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