[openib-general] [RFC] [PATCH 2/7] ib_multicast 2.6.20: add ib_multicast module to track join requests from the same port

[Or Gerlitz]

Sean Hefty wrote:
> Why is it a bad idea?  The architecture allows this.  However, none of 
> the proposed patches allows a userspace app to join an ipoib multicast 
> group.  

Just to make sure, by "ipoib multicast group" you mean an MGID which is 
derives from an IP Multicast address and the routing info on the device 
this address/subnets is routed to (ie the ipoib device pkey which you 
can get from the broadcast MAC of this device)?

How and Why does the proposed code enforces that?

Or.