[openib-general] [RFC] [PATCH 2/7] ib_multicast 2.6.20: add ib_multicast module to track join requests from the same port
mshefty at ichips.intel.com
Wed Oct 11 10:47:57 PDT 2006
Eitan Zahavi wrote:
> User level code can be run by root. It can access QP1 and bypass your nice
> API. Also you ignore current kernel implementations that exist and already
> perform QP1 access via the SA client code in the kernel.
Yep - and that same app can, today, delete the multicast groups used by ipoib.
As long as a MAD can actually be sent out of QP1, we have this problem.
The existing APIs were not ignored. The ib_multicast module makes direct calls
> No you are forcing every kernel client out there to do another unneeded
> migration to the new API and still not protect it correctly against multicast
There's exactly 1 kernel client that uses multicast groups, and a patch was
provided to migrate that client.
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