[PATCH v2 00/14] NFS/RDMA client side for Linux 4.3

[Chuck Lever <chuck.lever@oracle.com>]

Several important client-side performance and scalability
improvements are made in this series, proposed for the 4.3
kernel, including:

- Increase maximum RDMA credits to 128
- Increase maximum NFS r/wsize to one megabyte
- Prefer inline rather than reply chunk replies

And these fixes:

- Send NFSv4 WRITE compounds correctly
- Support RDMA_NOMSG calls
- Fix large NFS symlink operations
- Get inline threshold accounting right

Also available in the "nfs-rdma-for-4.3" 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-4.3


Changes since v1:
 - Rebased on Linux v4.2-rc2
 - PHYSICAL registration, being insecure, must now be explicitly selected
 - Further clean-ups were done because ib_reg_phys_mr() is gone
 - Support for RDMA_MSGP type calls has been removed
 - Some patch descriptions have been clarified

---

Chuck Lever (14):
      xprtrdma: Make xprt_setup_rdma() agnostic to family of server address
      xprtrdma: Raise maximum payload size to one megabyte
      xprtrdma: Increase default credit limit
      xprtrdma: Don't fall back to PHYSICAL memory registration
      xprtrdma: Remove last ib_reg_phys_mr() call site
      xprtrdma: Clean up rpcrdma_ia_open()
      xprtrdma: Remove logic that constructs RDMA_MSGP type calls
      xprtrdma: Account for RPC/RDMA header size when deciding to inline
      xprtrdma: Always provide a write list when sending NFS READ
      xprtrdma: Don't provide a reply chunk when expecting a short reply
      xprtrdma: Fix XDR tail buffer marshalling
      xprtrdma: Fix large NFS SYMLINK calls
      xprtrdma: Clean up xprt_rdma_print_stats()
      xprtrdma: Count RDMA_NOMSG type calls


 fs/nfs/nfs3xdr.c                   |    1 
 fs/nfs/nfs4xdr.c                   |    4 +
 include/linux/sunrpc/xprtrdma.h    |    2 
 net/sunrpc/xprtrdma/fmr_ops.c      |   19 +++
 net/sunrpc/xprtrdma/frwr_ops.c     |    5 +
 net/sunrpc/xprtrdma/physical_ops.c |   25 ++++-
 net/sunrpc/xprtrdma/rpc_rdma.c     |  197 ++++++++++++++++++------------------
 net/sunrpc/xprtrdma/transport.c    |   77 ++++++--------
 net/sunrpc/xprtrdma/verbs.c        |  197 +++++++++---------------------------
 net/sunrpc/xprtrdma/xprt_rdma.h    |   27 ++---
 10 files changed, 252 insertions(+), 302 deletions(-)

--
Chuck Lever