[openib-general] [RFC] [PATCH 0/1] ib_sa: add InformInfo registration for Notice reports

[Sean Hefty]

The following patch adds support to the ib_sa to allow users to register for
asynchronous events (traps and reports) from the SA.  The approach is similar to
that used by QLogic and suggested by Venkatesh, with the implementation based on
the approach used by multicast registration.

Users register to receive notices for a particular generic trap number.  The
notice sub-module tracks the number of registration requests for a given trap
number.  When necessary, un/registration requests are sent to the SA.

During initialization, the ib_sa module registers to receive unsolicited notice
reports.  When a notice is received, it is given to the notice sub-module for
dispatching.  The ib_sa generates a response to the notice report.

This patch is also available from my rdma_dev git tree, under the informinfo
branch.

Signed-off-by: Sean Hefty <sean.hefty at intel.com>