blob: 39267dc3486af5417f1f0642d353ec65d1e78aa5 [file] [log] [blame]
\"Talpey, Thomas\c3a57ed2007-09-10 13:49:15 -04001/*
2 * Copyright (c) 2003-2007 Network Appliance, Inc. All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the BSD-type
8 * license below:
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 *
14 * Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 *
17 * Redistributions in binary form must reproduce the above
18 * copyright notice, this list of conditions and the following
19 * disclaimer in the documentation and/or other materials provided
20 * with the distribution.
21 *
22 * Neither the name of the Network Appliance, Inc. nor the names of
23 * its contributors may be used to endorse or promote products
24 * derived from this software without specific prior written
25 * permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
28 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
30 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
31 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
32 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
33 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
34 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
35 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
36 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
37 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 */
39
40#ifndef _LINUX_SUNRPC_XPRTRDMA_H
41#define _LINUX_SUNRPC_XPRTRDMA_H
42
43/*
\"Talpey, Thomas\c3a57ed2007-09-10 13:49:15 -040044 * Constants. Max RPC/NFS header is big enough to account for
45 * additional marshaling buffers passed down by Linux client.
46 *
47 * RDMA header is currently fixed max size, and is big enough for a
48 * fully-chunked NFS message (read chunks are the largest). Note only
49 * a single chunk type per message is supported currently.
50 */
51#define RPCRDMA_MIN_SLOT_TABLE (2U)
Chuck Lever061dff22015-08-03 13:02:59 -040052#define RPCRDMA_DEF_SLOT_TABLE (128U)
\"Talpey, Thomas\c3a57ed2007-09-10 13:49:15 -040053#define RPCRDMA_MAX_SLOT_TABLE (256U)
54
Chuck Lever29c55422016-05-02 14:40:48 -040055#define RPCRDMA_MIN_INLINE (1024) /* min inline thresh */
56#define RPCRDMA_DEF_INLINE (1024) /* default inline thresh */
57#define RPCRDMA_MAX_INLINE (3068) /* max inline thresh */
\"Talpey, Thomas\c3a57ed2007-09-10 13:49:15 -040058
Chuck Lever7e53df12015-05-26 11:53:04 -040059/* Memory registration strategies, by number.
60 * This is part of a kernel / user space API. Do not remove. */
\"Talpey, Thomas\c3a57ed2007-09-10 13:49:15 -040061enum rpcrdma_memreg {
62 RPCRDMA_BOUNCEBUFFERS = 0,
63 RPCRDMA_REGISTER,
64 RPCRDMA_MEMWINDOWS,
65 RPCRDMA_MEMWINDOWS_ASYNC,
66 RPCRDMA_MTHCAFMR,
Tom Talpeyfe9053b2008-10-09 14:59:59 -040067 RPCRDMA_FRMR,
\"Talpey, Thomas\c3a57ed2007-09-10 13:49:15 -040068 RPCRDMA_ALLPHYSICAL,
69 RPCRDMA_LAST
70};
71
72#endif /* _LINUX_SUNRPC_XPRTRDMA_H */