From: Doug Ledford <dledford@xxxxxxxxxx> Date: Tue, 18 Jun 2019 13:29:59 -0400 > On Tue, 2019-06-18 at 10:08 -0700, David Miller wrote: >> From: Denis Kirjanov <kda@xxxxxxxxxxxxxxxxx> >> Date: Mon, 17 Jun 2019 10:53:41 +0200 >> >> > in IPoIB case we can't see a VF broadcast address for but >> > can see for PF >> >> I just want to understand why this need to see the VF broadcast >> address is IPoIB specific? > > A VF might or might not have the same security domain (P_Key) as the > parent, and the P_Key is encoded in the broadcast address. In the > event that two vfs or a vf and a pf can't see each other over the IPoIB > network, it is necessary to be able to see the broadcast address in use > by each to make sure they are the same and not that they shouldn't be > able to see each other because they are on different P_Keys and > therefore different broadcast multicast groups. Thanks for explaining. I'll apply these to net-next right now then. Thanks again.
