>-----Original Message-----
>From: Haller, John H (John) [mailto:[email protected]]
>Sent: Saturday, June 29, 2013 8:13 AM
>To: [email protected]
>Subject: [E1000-devel] ixgbe: BUG changing MTU or LRO setting disables VF
>multicast reception
>
>Any change to the device which causes ixgbe_do_reset to be called,
>including things like changing LRO setting or changing the MTU, cause
>the multicast table to be disabled. This prevents multicast packets
>to be sent to VFs, which also disables IPv6 to the VFs.
>
>As a quick hack, I added the following call to the end of
>ixgbe_set_vf_multicast:
>       IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL,IXGBE_MCSTCTRL_MFE |
>               hw->mac.mc_filter_type);

Thanks for the report. We were not able to reproduce the issue in house using 
the current driver, could you please provide some more details such as steps to 
reproduce and kernel/driver version?

Emil


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