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| author |   Chuck Lever <chuck.lever@oracle.com> | 2015-10-24 17:27:35 -0400 |
|---|---|---|
| committer |   Anna Schumaker <Anna.Schumaker@Netapp.com> | 2015-11-02 13:45:15 -0500 |
| commit | 42e5c3e2725ba0c0affc1fc8a6aa1d5cf31ecb75 (patch) | |
| tree | b6394fe31cdf2560533abfa37c35cab3f08f406a /include/linux/sunrpc/bc_xprt.h | |
| parent | xprtrdma: Saving IRQs no longer needed for rb_lock (diff) | |
| download | linux-dev-42e5c3e2725ba0c0affc1fc8a6aa1d5cf31ecb75.tar.xz linux-dev-42e5c3e2725ba0c0affc1fc8a6aa1d5cf31ecb75.zip | |
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>
Diffstat (limited to 'include/linux/sunrpc/bc_xprt.h')
| -rw-r--r-- | include/linux/sunrpc/bc_xprt.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/sunrpc/bc_xprt.h b/include/linux/sunrpc/bc_xprt.h index 8df43c9f11dc..4397a4824c81 100644 --- a/include/linux/sunrpc/bc_xprt.h +++ b/include/linux/sunrpc/bc_xprt.h @@ -38,6 +38,11 @@ void xprt_free_bc_request(struct rpc_rqst *req); int xprt_setup_backchannel(struct rpc_xprt *, unsigned int min_reqs); void xprt_destroy_backchannel(struct rpc_xprt *, unsigned int max_reqs); +/* Socket backchannel transport methods */ +int xprt_setup_bc(struct rpc_xprt *xprt, unsigned int min_reqs); +void xprt_destroy_bc(struct rpc_xprt *xprt, unsigned int max_reqs); +void xprt_free_bc_rqst(struct rpc_rqst *req); + /* * Determine if a shared backchannel is in use */ |