clntrdma.h: Add some fields to RDMA structures (glue for nfsclrdma.ko)

This patch adds some fields to NFS client side RDMA
structures and an additional argument to xprt_rdma_release_send().
This patch does not fix any semantics issue.

MFC after:	3 months
Fixes:	884ee8d6c9 ("nfscl: Add some glue for client side NFS over RDMA")

sys/rpc/clntrdma.h

@@ -14,6 +14,7 @@ struct rpcrdma_reduce_pg {
 	uint32_t	xid;
 	uint32_t	pos;
 	uint32_t	len;
+	uint32_t	off;
 	uint32_t	npg;
 	uint32_t	into_mem;
 	uint32_t	pg_allocd;
@@ -29,6 +30,7 @@ struct rpcrdma_xprt {
 	uint32_t	maxio;
 	uint32_t	maxsge;
 	uint32_t	maxsegs;
+	uint32_t	maxreads;
 	void		*ep;
 };
 
@@ -88,7 +90,7 @@ int xprt_rdma_send(struct rpcrdma_xprt *xp, struct mbuf *mreq, int ind);
 
 void xprt_rdma_release_send(struct rpcrdma_xprt *xp, int ind,
     struct rpcrdma_chunk *extern_chp, struct rpcrdma_chunk *extern_reply_chp,
-    struct rpcrdma_chunk *extern_request_chp);
+    struct rpcrdma_chunk *extern_request_chp, enum clnt_stat stat);
 
 int xprt_rdma_recv(struct rpcrdma_xprt *xp);