[sheepdog] [sheepdog/sheepdog] fda5a6: initial accelio support

Hitoshi Mitake mitake.hitoshi at lab.ntt.co.jp
Sat Oct 10 09:10:06 CEST 2015


  Branch: refs/heads/accelio-v1.4
  Home:   https://github.com/sheepdog/sheepdog
  Commit: fda5a6dbc97c0177f7e7810e26c61c434afd0912
      https://github.com/sheepdog/sheepdog/commit/fda5a6dbc97c0177f7e7810e26c61c434afd0912
  Author: Hitoshi Mitake <mitake.hitoshi at lab.ntt.co.jp>
  Date:   2015-10-10 (Sat, 10 Oct 2015)

  Changed paths:
    M configure.ac
    M include/internal_proto.h
    M include/net.h
    A include/xio.h
    M lib/Makefile.am
    M lib/sockfd_cache.c
    A lib/xio.c
    M sheep/Makefile.am
    M sheep/gateway.c
    M sheep/request.c
    M sheep/sheep.c
    M sheep/sheep_priv.h
    A sheep/xio.c
    M shepherd/Makefile.am

  Log Message:
  -----------
  initial accelio support

This patch adds a support of accelio, an library of RPC which wraps
TCP and RDMA in clean way, to sheepdog. With this change, sheepdog
will be able to utilize high speed interconnect like infiniband.

The code is very early stage and have bunch of ToDos. However, I'd
like to share it and want the community to help the implementation.

How to build:
 1. install accelio
 2. ./configure --enable-accelio
 3. make

How to use:
 $ sheep -i transport=rdma,host=xxx,port=yyy ...

Minor ToDos:
 - clean up code (e.g. comment out)
 - remove known segfault bugs
 - sane error handling
 - remove memory leaks
 - vdi creation with preallocation fails

Major ToDos:
 - enhance code for utilizing RDMA
 - rx/tx in worker threads (I'm not sure it is effective because RDMA
   helps to reduce CPU consumption)

Signed-off-by: Hitoshi Mitake <mitake.hitoshi at lab.ntt.co.jp>




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