Le mardi 25 octobre 2011 à 02:36 +0200, Michał Mirosław a écrit :

Commit fd38f734 (igbvf: convert to ndo_fix_features) removed last use
of old ethtool ops for controlling netdevice's features. This series
finishes the cleanup and extends feature pool to 64 bits.

Also, there's additional patch that removes NETIF_F_NO_CSUM as it is
now, and has been for some time, equivalent to NETIF_F_HW_CSUM.

To see the new features in action, you need ethtool patched with:

http://patchwork.ozlabs.org/patch/96374/

Not much has changed in those patches compared to last version I posted
in June.

Hi Michal

This reminds me current net-next is busted for bond/vlan, I dont know
why.



$ cat /proc/net/bonding/bond0 
Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)

Bonding Mode: fault-tolerance (active-backup)
Primary Slave: None
Currently Active Slave: eth2
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0

Slave Interface: eth1
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 1
Permanent HW addr: 00:1e:0b:ec:d3:d2
Slave queue ID: 0

Slave Interface: eth2
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:1e:0b:92:78:50
Slave queue ID: 0

$ ethtool -k eth1
Offload parameters for eth1:
rx-checksumming: on
tx-checksumming: on
scatter-gather: on
tcp-segmentation-offload: on
udp-fragmentation-offload: off
generic-segmentation-offload: on
generic-receive-offload: on
large-receive-offload: off
rx-vlan-offload: on
tx-vlan-offload: on
ntuple-filters: off
receive-hashing: on


$ ethtool -k eth2
Offload parameters for eth2:
rx-checksumming: on
tx-checksumming: on
scatter-gather: on
tcp-segmentation-offload: on
udp-fragmentation-offload: off
generic-segmentation-offload: on
generic-receive-offload: on
large-receive-offload: off
rx-vlan-offload: on
tx-vlan-offload: on
ntuple-filters: off
receive-hashing: off


$ ethtool -k bond0
Offload parameters for bond0:
rx-checksumming: on
tx-checksumming: on
scatter-gather: on
tcp-segmentation-offload: on
udp-fragmentation-offload: off
generic-segmentation-offload: on
generic-receive-offload: on
large-receive-offload: off
rx-vlan-offload: on
tx-vlan-offload: on
ntuple-filters: off
receive-hashing: off



$ ip link show dev vlan.103
7: vlan.103@bond0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
pfifo_fast state UP qlen 100
    link/ether 00:1e:0b:ec:d3:d2 brd ff:ff:ff:ff:ff:ff


But :

$ ethtool -k vlan.103
Offload parameters for vlan.103:
rx-checksumming: off
tx-checksumming: off
scatter-gather: off
tcp-segmentation-offload: off
udp-fragmentation-offload: off
generic-segmentation-offload: off
generic-receive-offload: on
large-receive-offload: off
rx-vlan-offload: off
tx-vlan-offload: off
ntuple-filters: off
receive-hashing: off

So basically all features but GRO are off.