This is the full patch series for adding the ability to handle native
Infiniband addressing to the rdma_cm. It is also available from:
git://git.openfabrics.org/~shefty/rdma-dev.git af-ib
Adding support for native IB addressing allows us to offload name and/or
address translation services to a user space daemon and provide the user
greater control over path selection. The primary motivation is to support
large scale fabrics, with address and name services either cached or bypassed
completely (information is exchanged out of band by an MPI process manager).
The intended usage model is for applications to call rdma_getaddrinfo. This
call is similar to getaddrinfo, but specific for RDMA devices.
rdma_getaddrinfo takes as input a name, IP address, GID, or LID, and returns
full connection information.
The patch set introduces af_ib and sockaddr_ib. The kernel rdma_cm is updated
accordingly, mainly to make its handling of addresses more generic. However,
since sockaddr_ib is larger than sockaddr_in6, the rdma_ucm requires changes to
its user to kernel interface. To provide backwards compatibility, the
userspace ABI is extended to support the larger address size.
Signed-off-by: Sean Hefty <[email protected]>
changes from v1:
Update to patch 4 to address a sparse error
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