Date: Tue, 07 Dec 2021 12:24:13 +0000
From: bugzilla-noreply@freebsd.org
To: bugs@FreeBSD.org
Subject: [Bug 260260] igb(4) I35{0,4} parrent <--> vlan jumbo frame mtu mismatch
Message-ID: <bug-260260-227-yhvI8b64BH@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-260260-227@https.bugs.freebsd.org/bugzilla/>
References: <bug-260260-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D260260 --- Comment #3 from Marek Zarychta <zarychtam@plan-b.pwste.edu.pl> --- (In reply to Zhenlei Huang from comment #2) 1. Indeed, bringing up intrefaces this way: ifconfig_igb0=3D"mtu 9000 -vlanmtu -vlanhwtag -vlanhwfilter -vlanhwtso -vlanhwcsum up" ifconfig_igb1=3D"mtu 9000 -vlanmtu -vlanhwtag -vlanhwfilter -vlanhwtso -vlanhwcsum up" makes vlan(4) children brought up with mtu 8996, but IMHO it's not right solution of the problem. 2. I also tried to apply D33154 as suggested =C3=96zkan KIRIK on net@ maili= ng list: > 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 The patch unfortunately doesn't solve this issue. FYI, in another machine, I have the setup described below working flawlessly with the same 13.0-STABLE revision. em0: flags=3D8963<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 = mtu 9000 =20=20=20=20=20=20=20 options=3D481049b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,LRO,VLA= N_HWFILTER,NOMAP> em1: flags=3D8963<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 = mtu 9000 =20=20=20=20=20=20=20 options=3D481049b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,LRO,VLA= N_HWFILTER,NOMAP> lagg0: flags=3D8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric = 0 mtu 9000 =20=20=20=20=20=20=20 options=3D481049b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,LRO,VLA= N_HWFILTER,NOMAP> ether 00:26:55:e4:d3:fa laggproto lacp lagghash l2,l3,l4 laggport: em0 flags=3D1c<ACTIVE,COLLECTING,DISTRIBUTING> laggport: em1 flags=3D1c<ACTIVE,COLLECTING,DISTRIBUTING> vlan6: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 90= 00 options=3D4000403<RXCSUM,TXCSUM,LRO,NOMAP> vlan: 7 vlanproto: 802.1q vlanpcp: 0 parent interface: lagg0 --=20 You are receiving this mail because: You are the assignee for the bug.=
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