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authorChuck Lever <chuck.lever@oracle.com>2016-05-02 14:40:40 -0400
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2016-05-17 15:47:57 -0400
commit6b26cc8c8ead3636a18bfd9489984983f4ddd6f4 (patch)
treea568d97b3fea0065f56122b1652ecc7748fa1da5 /include/linux/sunrpc/xprt.h
parent4b9c7f9db9a003f5c342184dc4401c1b7f2efb39 (diff)
sunrpc: Advertise maximum backchannel payload size
RPC-over-RDMA transports have a limit on how large a backward direction (backchannel) RPC message can be. Ensure that the NFSv4.x CREATE_SESSION operation advertises this limit to servers. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Tested-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'include/linux/sunrpc/xprt.h')
-rw-r--r--include/linux/sunrpc/xprt.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index fb0d212e0d3a..5aa3834619a8 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -142,6 +142,7 @@ struct rpc_xprt_ops {
int (*bc_setup)(struct rpc_xprt *xprt,
unsigned int min_reqs);
int (*bc_up)(struct svc_serv *serv, struct net *net);
+ size_t (*bc_maxpayload)(struct rpc_xprt *xprt);
void (*bc_free_rqst)(struct rpc_rqst *rqst);
void (*bc_destroy)(struct rpc_xprt *xprt,
unsigned int max_reqs);