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authorChuck Lever <chuck.lever@oracle.com>2015-10-24 17:27:35 -0400
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2015-11-02 13:45:15 -0500
commit42e5c3e2725ba0c0affc1fc8a6aa1d5cf31ecb75 (patch)
treeb6394fe31cdf2560533abfa37c35cab3f08f406a /net/sunrpc/xprtrdma/transport.c
parenta5b027e1897c811401862877d0ba4ca26fabc4da (diff)
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SUNRPC: Abstract backchannel operations
xprt_{setup,destroy}_backchannel() won't be adequate for RPC/RMDA bi-direction. In particular, receive buffers have to be pre- registered and posted in order to receive incoming backchannel requests. Add a virtual function call to allow the insertion of appropriate backchannel setup and destruction methods for each transport. In addition, freeing a backchannel request is a little different for RPC/RDMA. Introduce an rpc_xprt_op to handle the difference. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Sagi Grimberg <sagig@mellanox.com> Tested-By: Devesh Sharma <devesh.sharma@avagotech.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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