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
