On Jan 25, 2009, at 10:13 AM, Gerry Creager wrote:

-bash-3.2# ethtool -K rx off
no offload settings changed

You missed the interface here. You should try:

-bash-3.2# ethtool -K eth1 rx off

-bash-3.2# 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: off

But here's the one I love:
-bash-3.2# ethtool -K tso off
no offload settings changed

Again, you are missing the interface:

-bash-3.2# ethtool -K eth1 tso off

I apparently can't control things with ethtool...

Ethtool provides -S to let the driver report additional information. Does this report anything:

# ethtool -S eth1

Scott
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