Introduce client-side support for bi-directional RPC/RDMA. Bi-directional RPC/RDMA is a pre-requisite for NFSv4.1 on RDMA transports. Also available in the "nfs-rdma-for-4.4" 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/nfs-rdma-for-4.4 Changes since v1: - Dropped "RFC" in Subject: line - Rebased on v4.3-rc4 + Steve W's recent fixes - NFS Server-side backchannel support postponed - "xprtrdma: Replace global lkey" dropped, already merged - Addressed Sagi's comments on "Replace send and receive arrays" - Addressed Jason's comment regarding ib_req_notify_cq return code - Moved RPC/RDMA reply handling into a work queue I'm assuming recent list discussion has addressed Devesh's and Sagi's concerns with "Prevent loss of completion signals". Let me know if there is still a problem. --- Chuck Lever (16): xprtrdma: Enable swap-on-NFS/RDMA xprtrdma: Re-arm after missed events xprtrdma: Prevent loss of completion signals xprtrdma: Refactor reply handler error handling xprtrdma: Replace send and receive arrays xprtrdma: Use workqueue to process RPC/RDMA replies xprtrdma: Remove reply tasklet xprtrdma: Saving IRQs no longer needed for rb_lock SUNRPC: Abstract backchannel operations xprtrdma: Pre-allocate backward rpc_rqst and send/receive buffers xprtrdma: Pre-allocate Work Requests for backchannel xprtrdma: Add support for sending backward direction RPC replies xprtrdma: Handle incoming backward direction RPC calls svcrdma: Add backward direction service for RPC/RDMA transport SUNRPC: Remove the TCP-only restriction in bc_svc_process() NFS: Enable client side NFSv4.1 backchannel to use other transports fs/nfs/callback.c | 33 +- include/linux/sunrpc/bc_xprt.h | 5 include/linux/sunrpc/svc_rdma.h | 6 include/linux/sunrpc/xprt.h | 7 net/sunrpc/backchannel_rqst.c | 24 +- net/sunrpc/svc.c | 5 net/sunrpc/xprtrdma/Makefile | 1 net/sunrpc/xprtrdma/backchannel.c | 373 +++++++++++++++++++++++ net/sunrpc/xprtrdma/rpc_rdma.c | 148 ++++++--- net/sunrpc/xprtrdma/svc_rdma.c | 6 net/sunrpc/xprtrdma/svc_rdma_transport.c | 58 ++++ net/sunrpc/xprtrdma/transport.c | 18 + net/sunrpc/xprtrdma/verbs.c | 479 +++++++++++++++--------------- net/sunrpc/xprtrdma/xprt_rdma.h | 53 +++ net/sunrpc/xprtsock.c | 16 + 15 files changed, 916 insertions(+), 316 deletions(-) create mode 100644 net/sunrpc/xprtrdma/backchannel.c -- Chuck Lever -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
