1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-C <<
2 /* 1 /*
3 * Copyright (c) 2003-2007 Network Appliance, 2 * Copyright (c) 2003-2007 Network Appliance, Inc. All rights reserved.
4 * 3 *
5 * This software is available to you under a c 4 * This software is available to you under a choice of one of two
6 * licenses. You may choose to be licensed un 5 * licenses. You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, ava 6 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this sourc 7 * COPYING in the main directory of this source tree, or the BSD-type
9 * license below: 8 * license below:
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12 * modification, are permitted provided that t 11 * modification, are permitted provided that the following conditions
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14 * 13 *
15 * Redistributions of source code must re 14 * Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and th 15 * notice, this list of conditions and the following disclaimer.
17 * 16 *
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39 */ 38 */
40 39
41 #ifndef _LINUX_SUNRPC_XPRTRDMA_H 40 #ifndef _LINUX_SUNRPC_XPRTRDMA_H
42 #define _LINUX_SUNRPC_XPRTRDMA_H 41 #define _LINUX_SUNRPC_XPRTRDMA_H
43 42
44 /* 43 /*
45 * Constants. Max RPC/NFS header is big enough 44 * Constants. Max RPC/NFS header is big enough to account for
46 * additional marshaling buffers passed down b 45 * additional marshaling buffers passed down by Linux client.
47 * 46 *
48 * RDMA header is currently fixed max size, an 47 * RDMA header is currently fixed max size, and is big enough for a
49 * fully-chunked NFS message (read chunks are 48 * fully-chunked NFS message (read chunks are the largest). Note only
50 * a single chunk type per message is supporte 49 * a single chunk type per message is supported currently.
51 */ 50 */
52 #define RPCRDMA_MIN_SLOT_TABLE (4U) !! 51 #define RPCRDMA_MIN_SLOT_TABLE (2U)
53 #define RPCRDMA_DEF_SLOT_TABLE (128U) 52 #define RPCRDMA_DEF_SLOT_TABLE (128U)
54 #define RPCRDMA_MAX_SLOT_TABLE (16384U) !! 53 #define RPCRDMA_MAX_SLOT_TABLE (256U)
55 54
56 #define RPCRDMA_MIN_INLINE (1024) /* min !! 55 #define RPCRDMA_DEF_INLINE (1024) /* default inline max */
57 #define RPCRDMA_DEF_INLINE (4096) /* def !! 56
58 #define RPCRDMA_MAX_INLINE (65536) /* max !! 57 #define RPCRDMA_INLINE_PAD_THRESH (512)/* payload threshold to pad (bytes) */
59 58
60 /* Memory registration strategies, by number. 59 /* Memory registration strategies, by number.
61 * This is part of a kernel / user space API. 60 * This is part of a kernel / user space API. Do not remove. */
62 enum rpcrdma_memreg { 61 enum rpcrdma_memreg {
63 RPCRDMA_BOUNCEBUFFERS = 0, 62 RPCRDMA_BOUNCEBUFFERS = 0,
64 RPCRDMA_REGISTER, 63 RPCRDMA_REGISTER,
65 RPCRDMA_MEMWINDOWS, 64 RPCRDMA_MEMWINDOWS,
66 RPCRDMA_MEMWINDOWS_ASYNC, 65 RPCRDMA_MEMWINDOWS_ASYNC,
67 RPCRDMA_MTHCAFMR, 66 RPCRDMA_MTHCAFMR,
68 RPCRDMA_FRWR, !! 67 RPCRDMA_FRMR,
69 RPCRDMA_ALLPHYSICAL, 68 RPCRDMA_ALLPHYSICAL,
70 RPCRDMA_LAST 69 RPCRDMA_LAST
71 }; 70 };
72 71
73 #endif /* _LINUX_SUNRPC_XPRTRDMA_H */ 72 #endif /* _LINUX_SUNRPC_XPRTRDMA_H */
74 73
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