> The problem here is that our routine to change the mtu does a full reset on
> the driver meaning that in the process we go from effectively "open" to
> "closed" to "open" again.
>
> Consider the scenario where we change the mtu by running "ifdown <interface>",
> editing the ifcfg file with the new mtu, and finally running "ifup
> <interface".
> In this case, we call ibmvnic_close from the ifdown and as a result of the
> ifup,
> we do the reset for the mtu change (which puts us back in the "open" state)
> and
> call ibmvnic_open. After the reset, we are already in the "open" state and the
> following call to open is redundant.
Hi John
So you are saying "ip link set mtu 4242 eth1" on a down interface will
put it up. That i would say is broken. You should be fixing this,
rather than papering over the cracks.
Andrew
