Allow vlan interfaces to rx through netmap(4)
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Authored by mjoras on Aug 31 2017, 9:35 PM.

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rstone

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network

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rS323513: Allow vlan interfaces to rx through netmap(4).

Summary

Normally after receiving a packet, a vlan(4) interface sends the packet
back through its parent interface's rx routine so that it can be
processed as an untagged frame. It does this by using the parent's
ifp->if_input. This is incompatible with netmap(4), which replaces the
vlan(4) interface's if_input with a netmap(4) hook. Fix this by using
the vlan(4) interface's ifp instead of the parent's directly.