ix0 (iflib) vlans @ head & 12-stable

[Lev Serebryakov]

On 08.11.2018 13:11, Oleg Bulyzhin wrote:

> current ixgbe driver is using iflib and has IFCAP_VLAN_HWFILTER
> enabled by default.
> 
> /sys/net/iflib.c iflib_vlan_[un]register() functions have this code:
> 
>         /* Re-init to load the changes */
>         if (if_getcapenable(ifp) & IFCAP_VLAN_HWFILTER)
>                 iflib_if_init_locked(ctx);
> 
> Thus any vlan reconfiguration leads to link flap. This is not
> how it was before iflib conversion.
 On 12 each cpability reconfiguration for em/igb/ix leads to link flap,
where 11 doesn't need this flap for most of capabilities of these cards.

 IMHO, it is regression.

-- 
// Lev Serebryakov

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