Merge tag 'nfs-for-4.18-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

[linux-2.6-block.git] / net / sunrpc / xprtrdma / xprt_rdma.h

diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h
index f845b71793e2af036a1ff3cc1107ee4bf1ffa277..2ca14f7c2d51adb89d8df5f313fc2d30c1e9c16c 100644 (file)
--- a/net/sunrpc/xprtrdma/xprt_rdma.h
+++ b/net/sunrpc/xprtrdma/xprt_rdma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
 /*
  * Copyright (c) 2014-2017 Oracle.  All rights reserved.
  * Copyright (c) 2003-2007 Network Appliance, Inc. All rights reserved.
@@ -196,6 +197,7 @@ struct rpcrdma_rep {
        __be32                  rr_proc;
        int                     rr_wc_flags;
        u32                     rr_inv_rkey;
+       bool                    rr_temp;
        struct rpcrdma_regbuf   *rr_rdmabuf;
        struct rpcrdma_xprt     *rr_rxprt;
        struct work_struct      rr_work;
@@ -334,6 +336,7 @@ enum {
 struct rpcrdma_buffer;
 struct rpcrdma_req {
        struct list_head        rl_list;
+       struct rpc_rqst         rl_slot;
        struct rpcrdma_buffer   *rl_buffer;
        struct rpcrdma_rep      *rl_reply;
        struct xdr_stream       rl_stream;
@@ -356,16 +359,10 @@ enum {
        RPCRDMA_REQ_F_TX_RESOURCES,
 };
 
-static inline void
-rpcrdma_set_xprtdata(struct rpc_rqst *rqst, struct rpcrdma_req *req)
-{
-       rqst->rq_xprtdata = req;
-}
-
 static inline struct rpcrdma_req *
 rpcr_to_rdmar(const struct rpc_rqst *rqst)
 {
-       return rqst->rq_xprtdata;
+       return container_of(rqst, struct rpcrdma_req, rl_slot);
 }
 
 static inline void
@@ -401,11 +398,12 @@ struct rpcrdma_buffer {
        struct rpcrdma_sendctx  **rb_sc_ctxs;
 
        spinlock_t              rb_lock;        /* protect buf lists */
-       int                     rb_send_count, rb_recv_count;
        struct list_head        rb_send_bufs;
        struct list_head        rb_recv_bufs;
+       unsigned long           rb_flags;
        u32                     rb_max_requests;
        u32                     rb_credits;     /* most recent credit grant */
+       int                     rb_posted_receives;
 
        u32                     rb_bc_srv_max_requests;
        spinlock_t              rb_reqslock;    /* protect rb_allreqs */
@@ -420,6 +418,11 @@ struct rpcrdma_buffer {
 };
 #define rdmab_to_ia(b) (&container_of((b), struct rpcrdma_xprt, rx_buf)->rx_ia)
 
+/* rb_flags */
+enum {
+       RPCRDMA_BUF_F_EMPTY_SCQ = 0,
+};
+
 /*
  * Internal structure for transport instance creation. This
  * exists primarily for modularity.
@@ -561,18 +564,16 @@ void rpcrdma_ep_disconnect(struct rpcrdma_ep *, struct rpcrdma_ia *);
 
 int rpcrdma_ep_post(struct rpcrdma_ia *, struct rpcrdma_ep *,
                                struct rpcrdma_req *);
-int rpcrdma_ep_post_recv(struct rpcrdma_ia *, struct rpcrdma_rep *);
+void rpcrdma_post_recvs(struct rpcrdma_xprt *r_xprt, bool temp);
 
 /*
  * Buffer calls - xprtrdma/verbs.c
  */
 struct rpcrdma_req *rpcrdma_create_req(struct rpcrdma_xprt *);
 void rpcrdma_destroy_req(struct rpcrdma_req *);
-int rpcrdma_create_rep(struct rpcrdma_xprt *r_xprt);
 int rpcrdma_buffer_create(struct rpcrdma_xprt *);
 void rpcrdma_buffer_destroy(struct rpcrdma_buffer *);
 struct rpcrdma_sendctx *rpcrdma_sendctx_get_locked(struct rpcrdma_buffer *buf);
-void rpcrdma_sendctx_put_locked(struct rpcrdma_sendctx *sc);
 
 struct rpcrdma_mr *rpcrdma_mr_get(struct rpcrdma_xprt *r_xprt);
 void rpcrdma_mr_put(struct rpcrdma_mr *mr);
@@ -581,7 +582,6 @@ void rpcrdma_mr_defer_recovery(struct rpcrdma_mr *mr);
 
 struct rpcrdma_req *rpcrdma_buffer_get(struct rpcrdma_buffer *);
 void rpcrdma_buffer_put(struct rpcrdma_req *);
-void rpcrdma_recv_buffer_get(struct rpcrdma_req *);
 void rpcrdma_recv_buffer_put(struct rpcrdma_rep *);
 
 struct rpcrdma_regbuf *rpcrdma_alloc_regbuf(size_t, enum dma_data_direction,
@@ -603,8 +603,6 @@ rpcrdma_dma_map_regbuf(struct rpcrdma_ia *ia, struct rpcrdma_regbuf *rb)
        return __rpcrdma_dma_map_regbuf(ia, rb);
 }
 
-int rpcrdma_ep_post_extra_recv(struct rpcrdma_xprt *, unsigned int);
-
 int rpcrdma_alloc_wq(void);
 void rpcrdma_destroy_wq(void);