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- /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
- /*
- * Copyright (c) 2003-2007 Network Appliance, Inc. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the BSD-type
- * license below:
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials provided
- * with the distribution.
- *
- * Neither the name of the Network Appliance, Inc. nor the names of
- * its contributors may be used to endorse or promote products
- * derived from this software without specific prior written
- * permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
- #ifndef _LINUX_SUNRPC_XPRTRDMA_H
- #define _LINUX_SUNRPC_XPRTRDMA_H
- /*
- * Constants. Max RPC/NFS header is big enough to account for
- * additional marshaling buffers passed down by Linux client.
- *
- * RDMA header is currently fixed max size, and is big enough for a
- * fully-chunked NFS message (read chunks are the largest). Note only
- * a single chunk type per message is supported currently.
- */
- #define RPCRDMA_MIN_SLOT_TABLE (4U)
- #define RPCRDMA_DEF_SLOT_TABLE (128U)
- #define RPCRDMA_MAX_SLOT_TABLE (16384U)
- #define RPCRDMA_MIN_INLINE (1024) /* min inline thresh */
- #define RPCRDMA_DEF_INLINE (4096) /* default inline thresh */
- #define RPCRDMA_MAX_INLINE (65536) /* max inline thresh */
- /* Memory registration strategies, by number.
- * This is part of a kernel / user space API. Do not remove. */
- enum rpcrdma_memreg {
- RPCRDMA_BOUNCEBUFFERS = 0,
- RPCRDMA_REGISTER,
- RPCRDMA_MEMWINDOWS,
- RPCRDMA_MEMWINDOWS_ASYNC,
- RPCRDMA_MTHCAFMR,
- RPCRDMA_FRWR,
- RPCRDMA_ALLPHYSICAL,
- RPCRDMA_LAST
- };
- #endif /* _LINUX_SUNRPC_XPRTRDMA_H */
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