kern/50933: can not enable the interface capabilities at ixg0

[6bone%6bone.informatik.uni-leipzig.de@localhost]

>Number:         50933
>Category:       kern
>Synopsis:       can not enable the interface capabilities at ixg0
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Mar 10 13:35:00 +0000 2016
>Originator:     Uwe Toenjes
>Release:        netbsd-7
>Organization:
University of Leipzig
>Environment:
NetBSD 6bone.informatik.uni-leipzig.de 7.0_STABLE NetBSD 7.0_STABLE (MYCONF7.gdb) #0: Sat Feb 13 12:32:12 CET 2016  root%6bone.informatik.uni-leipzig.de@localhost:/usr/obj/sys/arch/amd64/compile/MYCONF7.gdb amd64

>Description:
ifconfig ixg0 reports

ixg0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
        capabilities=fff80<TSO4,IP4CSUM_Rx,IP4CSUM_Tx,TCP4CSUM_Rx>
        capabilities=fff80<TCP4CSUM_Tx,UDP4CSUM_Rx,UDP4CSUM_Tx,TCP6CSUM_Rx>
        capabilities=fff80<TCP6CSUM_Tx,UDP6CSUM_Rx,UDP6CSUM_Tx,TSO6,LRO>
        enabled=42b80<TSO4,IP4CSUM_Rx,IP4CSUM_Tx,TCP4CSUM_Tx>
        enabled=42b80<UDP4CSUM_Tx,TSO6>
        ec_capabilities=7<VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU>
        ec_enabled=7<VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU>
        address: a0:36:9f:26:8e:7c
        media: Ethernet autoselect

I try to activate the capabilities.

I try to activate the capabilities.

ifconfig ixg0 tso4 tso6 - works
ifconfig ixg0 ip4csum - works

ifconfig ixg0 tcp4csum
ifconfig: SIOCSIFCAP: Invalid argument

ifconfig ixg0 tcp4csum-rx
ifconfig: SIOCSIFCAP: Invalid argument

ifconfig ixg0 udp4csum-tx - works

ifconfig ixg0 udp4csum-rx
ifconfig: SIOCSIFCAP: Invalid argument

ifconfig ixg0 udp4csum
ifconfig: SIOCSIFCAP: Invalid argument

The same for tcp6csum and udp6csum

>How-To-Repeat:

>Fix: