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| author | Chuck Lever <chuck.lever@oracle.com> | 2015-03-30 14:34:30 -0400 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2015-03-31 09:52:52 -0400 |
| commit | 1c9351ee0e346ec1b3c700a4bc8f881923e1808e (patch) | |
| tree | 2ed88d5862cab405742db7e97efe6532c4e1e73f /net/sunrpc/xprtrdma/xprt_rdma.h | |
| parent | a0ce85f595c22d28bf03c3fae8545b3077b7be1b (diff) | |
| download | blackbird-op-linux-1c9351ee0e346ec1b3c700a4bc8f881923e1808e.tar.gz blackbird-op-linux-1c9351ee0e346ec1b3c700a4bc8f881923e1808e.zip | |
xprtrdma: Add a "max_payload" op for each memreg mode
The max_payload computation is generalized to ensure that the
payload maximum is the lesser of RPC_MAX_DATA_SEGS and the number of
data segments that can be transmitted in an inline buffer.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Tested-by: Devesh Sharma <Devesh.Sharma@Emulex.Com>
Tested-by: Meghana Cheripady <Meghana.Cheripady@Emulex.Com>
Tested-by: Veeresh U. Kokatnur <veereshuk@chelsio.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 | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h index ef3cf4aeecd6..59e627e96a0b 100644 --- a/net/sunrpc/xprtrdma/xprt_rdma.h +++ b/net/sunrpc/xprtrdma/xprt_rdma.h @@ -334,7 +334,9 @@ struct rpcrdma_stats { /* * Per-registration mode operations */ +struct rpcrdma_xprt; struct rpcrdma_memreg_ops { + size_t (*ro_maxpages)(struct rpcrdma_xprt *); const char *ro_displayname; }; @@ -411,6 +413,8 @@ struct rpcrdma_regbuf *rpcrdma_alloc_regbuf(struct rpcrdma_ia *, void rpcrdma_free_regbuf(struct rpcrdma_ia *, struct rpcrdma_regbuf *); +unsigned int rpcrdma_max_segments(struct rpcrdma_xprt *); + /* * RPC/RDMA connection management calls - xprtrdma/rpc_rdma.c */ @@ -422,7 +426,6 @@ void rpcrdma_reply_handler(struct rpcrdma_rep *); * RPC/RDMA protocol calls - xprtrdma/rpc_rdma.c */ int rpcrdma_marshal_req(struct rpc_rqst *); -size_t rpcrdma_max_payload(struct rpcrdma_xprt *); /* Temporary NFS request map cache. Created in svc_rdma.c */ extern struct kmem_cache *svc_rdma_map_cachep; |
