[Bug 260260] igb(4) I35{0,4} parrent <--> vlan jumbo frame mtu mismatch
Date: Tue, 07 Dec 2021 12:24:13 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=260260 --- 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="mtu 9000 -vlanmtu -vlanhwtag -vlanhwfilter -vlanhwtso -vlanhwcsum up" ifconfig_igb1="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 Özkan KIRIK on net@ mailing 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=8963<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 9000 options=481049b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,LRO,VLAN_HWFILTER,NOMAP> em1: flags=8963<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 9000 options=481049b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,LRO,VLAN_HWFILTER,NOMAP> lagg0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 9000 options=481049b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,LRO,VLAN_HWFILTER,NOMAP> ether 00:26:55:e4:d3:fa laggproto lacp lagghash l2,l3,l4 laggport: em0 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> laggport: em1 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> vlan6: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 9000 options=4000403<RXCSUM,TXCSUM,LRO,NOMAP> vlan: 7 vlanproto: 802.1q vlanpcp: 0 parent interface: lagg0 -- You are receiving this mail because: You are the assignee for the bug.