1 /* 2 * Copyright (c) 2004 Topspin Communications. All rights reserved. 3 * Copyright (c) 2005 Intel Corporation. All rights reserved. 4 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. 5 * 6 * This software is available to you under a choice of one of two 7 * licenses. You may choose to be licensed under the terms of the GNU 8 * General Public License (GPL) Version 2, available from the file 9 * COPYING in the main directory of this source tree, or the 10 * OpenIB.org BSD license below: 11 * 12 * Redistribution and use in source and binary forms, with or 13 * without modification, are permitted provided that the following 14 * conditions are met: 15 * 16 * - Redistributions of source code must retain the above 17 * copyright notice, this list of conditions and the following 18 * disclaimer. 19 * 20 * - Redistributions in binary form must reproduce the above 21 * copyright notice, this list of conditions and the following 22 * disclaimer in the documentation and/or other materials 23 * provided with the distribution. 24 * 25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 32 * SOFTWARE. 33 */ 34 35 #ifndef _IB_CACHE_H 36 #define _IB_CACHE_H 37 38 #include <rdma/ib_verbs.h> 39 40 /** 41 * ib_get_cached_gid - Returns a cached GID table entry 42 * @device: The device to query. 43 * @port_num: The port number of the device to query. 44 * @index: The index into the cached GID table to query. 45 * @gid: The GID value found at the specified index. 46 * 47 * ib_get_cached_gid() fetches the specified GID table entry stored in 48 * the local software cache. 49 */ 50 int ib_get_cached_gid(struct ib_device *device, 51 u8 port_num, 52 int index, 53 union ib_gid *gid); 54 55 /** 56 * ib_find_cached_gid - Returns the port number and GID table index where 57 * a specified GID value occurs. 58 * @device: The device to query. 59 * @gid: The GID value to search for. 60 * @port_num: The port number of the device where the GID value was found. 61 * @index: The index into the cached GID table where the GID was found. This 62 * parameter may be NULL. 63 * 64 * ib_find_cached_gid() searches for the specified GID value in 65 * the local software cache. 66 */ 67 int ib_find_cached_gid(struct ib_device *device, 68 const union ib_gid *gid, 69 u8 *port_num, 70 u16 *index); 71 72 /** 73 * ib_get_cached_pkey - Returns a cached PKey table entry 74 * @device: The device to query. 75 * @port_num: The port number of the device to query. 76 * @index: The index into the cached PKey table to query. 77 * @pkey: The PKey value found at the specified index. 78 * 79 * ib_get_cached_pkey() fetches the specified PKey table entry stored in 80 * the local software cache. 81 */ 82 int ib_get_cached_pkey(struct ib_device *device_handle, 83 u8 port_num, 84 int index, 85 u16 *pkey); 86 87 /** 88 * ib_find_cached_pkey - Returns the PKey table index where a specified 89 * PKey value occurs. 90 * @device: The device to query. 91 * @port_num: The port number of the device to search for the PKey. 92 * @pkey: The PKey value to search for. 93 * @index: The index into the cached PKey table where the PKey was found. 94 * 95 * ib_find_cached_pkey() searches the specified PKey table in 96 * the local software cache. 97 */ 98 int ib_find_cached_pkey(struct ib_device *device, 99 u8 port_num, 100 u16 pkey, 101 u16 *index); 102 103 /** 104 * ib_find_exact_cached_pkey - Returns the PKey table index where a specified 105 * PKey value occurs. Comparison uses the FULL 16 bits (incl membership bit) 106 * @device: The device to query. 107 * @port_num: The port number of the device to search for the PKey. 108 * @pkey: The PKey value to search for. 109 * @index: The index into the cached PKey table where the PKey was found. 110 * 111 * ib_find_exact_cached_pkey() searches the specified PKey table in 112 * the local software cache. 113 */ 114 int ib_find_exact_cached_pkey(struct ib_device *device, 115 u8 port_num, 116 u16 pkey, 117 u16 *index); 118 119 /** 120 * ib_get_cached_lmc - Returns a cached lmc table entry 121 * @device: The device to query. 122 * @port_num: The port number of the device to query. 123 * @lmc: The lmc value for the specified port for that device. 124 * 125 * ib_get_cached_lmc() fetches the specified lmc table entry stored in 126 * the local software cache. 127 */ 128 int ib_get_cached_lmc(struct ib_device *device, 129 u8 port_num, 130 u8 *lmc); 131 132 #endif /* _IB_CACHE_H */ 133