SUNRPC: Abstract backchannel operations

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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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Chuck Lever 2015-10-24 17:27:35 -04:00 • committed by Anna Schumaker

parent a5b027e189

commit 42e5c3e272

4 changed files with 37 additions and 2 deletions

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5

include/linux/sunrpc/bc_xprt.h

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5

include/linux/sunrpc/xprt.h

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