| /* 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 (2U) |
| #define RPCRDMA_DEF_SLOT_TABLE (128U) |
| #define RPCRDMA_MAX_SLOT_TABLE (256U) |
| |
| #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 */ |
