[PATCH v1 00/16] NFS/RDMA server patches maybe for v5.7

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Hey Bruce-

Here's the part of the RFC patch series I recently sent out that is
likely to be ready for the v5.7 merge window. These need a little
more soak-time. Please review them and let me know if there's
something terribly objectionable.

Again, the direction of the larger series is eventual support for
the server's RPC/RDMA transport to deal correctly with multiple
Write chunks in an RPC. Today the server transport supports only
one Write chunk per RPC. That's somewhat less than compliant with
RFC 8166, though good enough for any operation the Linux NFS/RDMA
client uses, and most every operation Solaris can send.

The patches below are clean-ups and optimizations that prepare the
way for multi-Write chunk support.

---

Chuck Lever (16):
      nfsd: Fix NFSv4 READ on RDMA when using readv
      NFSD: Clean up nfsd4_encode_readv
      svcrdma: Fix double svc_rdma_send_ctxt_put() in an error path
      SUNRPC: Add xdr_pad_size() helper
      svcrdma: Create a generic tracing class for displaying xdr_buf layout
      svcrdma: Remove svcrdma_cm_event() trace point
      svcrdma: Use struct xdr_stream to decode ingress transport headers
      svcrdma: De-duplicate code that locates Write and Reply chunks
      svcrdma: Update synopsis of svc_rdma_send_reply_chunk()
      svcrdma: Update synopsis of svc_rdma_map_reply_msg()
      svcrdma: Update synopsis of svc_rdma_send_reply_msg()
      svcrdma: Rename svcrdma_encode trace points in send routines
      SUNRPC: Add encoders for list item discriminators
      svcrdma: Refactor chunk list encoders
      svcrdma: Fix double sync of transport header buffer
      svcrdma: Avoid DMA mapping small RPC Replies


 fs/nfsd/nfs4xdr.c                          |   29 +-
 include/linux/sunrpc/rpc_rdma.h            |    3 
 include/linux/sunrpc/svc.h                 |    3 
 include/linux/sunrpc/svc_rdma.h            |   23 +
 include/linux/sunrpc/svc_xprt.h            |    2 
 include/linux/sunrpc/xdr.h                 |   54 +++
 include/trace/events/rpcrdma.h             |   67 ++--
 include/trace/events/sunrpc.h              |   43 ++
 net/sunrpc/auth_gss/auth_gss.c             |    4 
 net/sunrpc/auth_gss/svcauth_gss.c          |    4 
 net/sunrpc/svc.c                           |   16 +
 net/sunrpc/svc_xprt.c                      |    6 
 net/sunrpc/svcsock.c                       |    8 
 net/sunrpc/xprt.c                          |    4 
 net/sunrpc/xprtrdma/rpc_rdma.c             |   39 --
 net/sunrpc/xprtrdma/svc_rdma_backchannel.c |   16 +
 net/sunrpc/xprtrdma/svc_rdma_recvfrom.c    |  248 +++++++++-----
 net/sunrpc/xprtrdma/svc_rdma_rw.c          |   55 ++-
 net/sunrpc/xprtrdma/svc_rdma_sendto.c      |  504 ++++++++++++++++------------
 net/sunrpc/xprtrdma/svc_rdma_transport.c   |    8 
 20 files changed, 693 insertions(+), 443 deletions(-)

--
Chuck Lever



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