Here are patches to support server-side bi-directional RPC/RDMA operation (to enable NFSv4.1 on RPC/RDMA transports). Thanks to all who reviewed v1 and v2. Also available in the "nfsd-rdma-for-4.5" topic branch of this git repo: git://git.linux-nfs.org/projects/cel/cel-2.6.git Or for browsing: http://git.linux-nfs.org/?p=cel/cel-2.6.git;a=log;h=refs/heads/nfsd-rdma-for-4.5 Changes since v2: - Rebased on v4.4-rc4 - Backchannel code in new source file to address dprintk issues - svc_rdma_get_context() now uses a pre-allocated cache - Dropped svc_rdma_send clean up Changes since v1: - Rebased on v4.4-rc3 - Removed the use of CONFIG_SUNRPC_BACKCHANNEL - Fixed computation of forward and backward max_requests - Updated some comments and patch descriptions - pr_err and pr_info converted to dprintk - Simplified svc_rdma_get_context() - Dropped patch removing access_flags field - NFSv4.1 callbacks tested with for-4.5 client --- Chuck Lever (6): svcrdma: Do not send XDR roundup bytes for a write chunk svcrdma: Improve allocation of struct svc_rdma_op_ctxt svcrdma: Define maximum number of backchannel requests svcrdma: Add infrastructure to send backwards direction RPC/RDMA calls svcrdma: Add infrastructure to receive backwards direction RPC/RDMA replies xprtrdma: Add class for RDMA backwards direction transport include/linux/sunrpc/svc_rdma.h | 13 + include/linux/sunrpc/xprt.h | 1 net/sunrpc/xprt.c | 1 net/sunrpc/xprtrdma/Makefile | 2 net/sunrpc/xprtrdma/svc_rdma.c | 17 -- net/sunrpc/xprtrdma/svc_rdma_backchannel.c | 305 ++++++++++++++++++++++++++++ net/sunrpc/xprtrdma/svc_rdma_recvfrom.c | 51 +++++ net/sunrpc/xprtrdma/svc_rdma_sendto.c | 68 ++++++ net/sunrpc/xprtrdma/svc_rdma_transport.c | 104 ++++++++-- net/sunrpc/xprtrdma/transport.c | 31 ++- net/sunrpc/xprtrdma/xprt_rdma.h | 15 + 11 files changed, 559 insertions(+), 49 deletions(-) create mode 100644 net/sunrpc/xprtrdma/svc_rdma_backchannel.c -- Chuck Lever -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
