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| author | Chuck Lever <chuck.lever@oracle.com> | 2016-09-15 10:57:07 -0400 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2016-09-19 13:08:38 -0400 |
| commit | 87cfb9a0c85ce4a0c96a4f3d692a85519b933ade (patch) | |
| tree | 7e9f35448effa32a7e0b20a86b6c4aa1211315b7 /net/sunrpc/xprtrdma/xprt_rdma.h | |
| parent | ff06bd191e722393d9abf7d6f9767f195274e909 (diff) | |
| download | lwn-87cfb9a0c85ce4a0c96a4f3d692a85519b933ade.tar.gz lwn-87cfb9a0c85ce4a0c96a4f3d692a85519b933ade.zip | |
xprtrdma: Client-side support for rpcrdma_connect_private
Send an RDMA-CM private message on connect, and look for one during
a connection-established event.
Both sides can communicate their various implementation limits.
Implementations that don't support this sideband protocol ignore it.
Once the client knows the server's inline threshold maxima, it can
adjust the use of Reply chunks, and eliminate most use of Position
Zero Read chunks. Moderately-sized I/O can be done using a pure
inline RDMA Send instead of RDMA operations that require memory
registration.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net/sunrpc/xprtrdma/xprt_rdma.h')
| -rw-r--r-- | net/sunrpc/xprtrdma/xprt_rdma.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h index 9aabca68c49d..89df1680b1eb 100644 --- a/net/sunrpc/xprtrdma/xprt_rdma.h +++ b/net/sunrpc/xprtrdma/xprt_rdma.h @@ -70,6 +70,7 @@ struct rpcrdma_ia { struct ib_pd *ri_pd; struct completion ri_done; int ri_async_rc; + unsigned int ri_max_segs; unsigned int ri_max_frmr_depth; unsigned int ri_max_inline_write; unsigned int ri_max_inline_read; @@ -87,6 +88,7 @@ struct rpcrdma_ep { int rep_connected; struct ib_qp_init_attr rep_attr; wait_queue_head_t rep_connect_wait; + struct rpcrdma_connect_private rep_cm_private; struct rdma_conn_param rep_remote_cma; struct sockaddr_storage rep_remote_addr; struct delayed_work rep_connect_worker; @@ -523,9 +525,7 @@ void rpcrdma_reply_handler(struct rpcrdma_rep *); * RPC/RDMA protocol calls - xprtrdma/rpc_rdma.c */ int rpcrdma_marshal_req(struct rpc_rqst *); -void rpcrdma_set_max_header_sizes(struct rpcrdma_ia *, - struct rpcrdma_create_data_internal *, - unsigned int); +void rpcrdma_set_max_header_sizes(struct rpcrdma_xprt *); /* RPC/RDMA module init - xprtrdma/transport.c */ |