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List:       linux-rdma
Subject:    [PATCH v1 00/17] Server-side NFS/RDMA changes proposed for v4.13
From:       Chuck Lever <chuck.lever () oracle ! com>
Date:       2017-05-30 18:14:02
Message-ID: 20170530175808.2992.60365.stgit () klimt ! 1015granger ! net
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This series overhauls the "call receive" side of the RPC-over-RDMA
transport to use the new rdma_rw API. A slight performance increase
(better throughput and latency) has been seen. Benefits include:

 o Fewer ib_post_send calls per RPC Call

 o Code duplicated by other ULPs is replaced with core functions

 o Position-Zero Read chunks are handled in one function

 o More thorough transport header sanity checking


Available in the "nfsd-rdma-for-4.13" 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-4.13


In order to keep the for-4.13 series to about 15 patches, I've
updated the "nfsd-rdma-rw-api" topic branch to include a few
additional patches. A new rdma_rw API is provided to expose the
number of MRs needed for a given payload size so that queue depths
can be more accurately calculated.

http://git.linux-nfs.org/?p=cel/cel-2.6.git;a=log;h=refs/heads/nfsd-rdma-rw-api


---

Chuck Lever (17):
      ib_core: Enable and expose force_mr module parameter
      svcrdma: Squelch disconnection messages
      svcrdma: Avoid Send Queue overflow
      svcrdma: Remove svc_rdma_marshal.c
      svcrdma: Improve Read chunk sanity checking
      svcrdma: Improve Write chunk sanity checking
      svcrdma: Improve Reply chunk sanity checking
      svcrdma: Don't account for Receive queue "starvation"
      sunrpc: Allocate one more page per svc_rqst
      svcrdma: Add recvfrom helpers to svc_rdma_rw.c
      svcrdma: Use generic RDMA R/W API in RPC Call path
      svcrdma: Properly compute .len and .buflen for received RPC Calls
      svcrdma: Remove unused Read completion handlers
      svcrdma: Remove frmr cache
      svcrdma: Clean-up svc_rdma_unmap_dma
      svcrdma: Clean up after converting svc_rdma_recvfrom to rdma_rw API
      svcrdma: use offset_in_page() macro


 drivers/infiniband/core/rw.c             |    2 
 include/linux/sunrpc/svc.h               |    3 
 include/linux/sunrpc/svc_rdma.h          |   46 --
 net/sunrpc/svc_xprt.c                    |    8 
 net/sunrpc/xprtrdma/Makefile             |    4 
 net/sunrpc/xprtrdma/svc_rdma_marshal.c   |  168 -------
 net/sunrpc/xprtrdma/svc_rdma_recvfrom.c  |  734 ++++++++++++------------------
 net/sunrpc/xprtrdma/svc_rdma_rw.c        |  433 ++++++++++++++++++
 net/sunrpc/xprtrdma/svc_rdma_sendto.c    |   15 -
 net/sunrpc/xprtrdma/svc_rdma_transport.c |  250 +---------
 10 files changed, 760 insertions(+), 903 deletions(-)
 delete mode 100644 net/sunrpc/xprtrdma/svc_rdma_marshal.c

--
Chuck Lever
--
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