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| author | Chuck Lever <chuck.lever@oracle.com> | 2016-09-15 17:57:07 +0300 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2016-09-19 20:08:38 +0300 |
| commit | 87cfb9a0c85ce4a0c96a4f3d692a85519b933ade (patch) | |
| tree | 7e9f35448effa32a7e0b20a86b6c4aa1211315b7 /net/sunrpc/xprtrdma/rpc_rdma.c | |
| parent | ff06bd191e722393d9abf7d6f9767f195274e909 (diff) | |
| download | linux-87cfb9a0c85ce4a0c96a4f3d692a85519b933ade.tar.xz | |
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/rpc_rdma.c')
| -rw-r--r-- | net/sunrpc/xprtrdma/rpc_rdma.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/net/sunrpc/xprtrdma/rpc_rdma.c b/net/sunrpc/xprtrdma/rpc_rdma.c index c2906e314287..ea734c2c7ddb 100644 --- a/net/sunrpc/xprtrdma/rpc_rdma.c +++ b/net/sunrpc/xprtrdma/rpc_rdma.c @@ -118,10 +118,12 @@ static unsigned int rpcrdma_max_reply_header_size(unsigned int maxsegs) return size; } -void rpcrdma_set_max_header_sizes(struct rpcrdma_ia *ia, - struct rpcrdma_create_data_internal *cdata, - unsigned int maxsegs) +void rpcrdma_set_max_header_sizes(struct rpcrdma_xprt *r_xprt) { + struct rpcrdma_create_data_internal *cdata = &r_xprt->rx_data; + struct rpcrdma_ia *ia = &r_xprt->rx_ia; + unsigned int maxsegs = ia->ri_max_segs; + ia->ri_max_inline_write = cdata->inline_wsize - rpcrdma_max_call_header_size(maxsegs); ia->ri_max_inline_read = cdata->inline_rsize - |