acrn-kernel/include/rdma
Sean Hefty c8f6a362bf RDMA/cma: Add multicast communication support
Extend rdma_cm to support multicast communication.  Multicast support
is added to the existing RDMA_PS_UDP port space, as well as a new
RDMA_PS_IPOIB port space.  The latter port space allows joining the
multicast groups used by IPoIB, which enables offloading IPoIB traffic
to a separate QP.  The port space determines the signature used in the
MGID when joining the group.  The newly added RDMA_PS_IPOIB also
allows for unicast operations, similar to RDMA_PS_UDP.

Supporting the RDMA_PS_IPOIB requires changing how UD QPs are initialized,
since we can no longer assume that the qkey is constant.  This requires
saving the Q_Key to use when attaching to a device, so that it is
available when creating the QP.  The Q_Key information is exported to
the user through the existing rdma_init_qp_attr() interface.

Multicast support is also exported to userspace through the rdma_ucm.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-02-16 14:29:07 -08:00
..
Kbuild
ib_addr.h IB/sa: Track multicast join/leave requests 2007-02-16 14:20:02 -08:00
ib_cache.h
ib_cm.h
ib_fmr_pool.h
ib_mad.h
ib_marshall.h
ib_pack.h
ib_sa.h IB/sa: Track multicast join/leave requests 2007-02-16 14:20:02 -08:00
ib_smi.h
ib_user_cm.h
ib_user_mad.h
ib_user_sa.h
ib_user_verbs.h
ib_verbs.h
iw_cm.h
rdma_cm.h RDMA/cma: Add multicast communication support 2007-02-16 14:29:07 -08:00
rdma_cm_ib.h RDMA/cma: Add multicast communication support 2007-02-16 14:29:07 -08:00
rdma_user_cm.h RDMA/cma: Add multicast communication support 2007-02-16 14:29:07 -08:00