I'm Sean Hefty, and I approve this message. This patch series adds the ability to handle native Infiniband addressing to the rdma_cm.
In addition to supporting native addresses, this support allows us to offload name and/or address translation services to a user space daemon, providing 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 <sean.he...@intel.com> changes from v2: updated to later kernel -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
