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 * @attr: The GID attribute found at the specified index (only in RoCE). 47 * NULL means ignore (output parameter). 48 * 49 * ib_get_cached_gid() fetches the specified GID table entry stored in 50 * the local software cache. 51 */ 52 int ib_get_cached_gid(struct ib_device *device, 53 u8 port_num, 54 int index, 55 union ib_gid *gid, 56 struct ib_gid_attr *attr); 57 58 /** 59 * ib_find_cached_gid - Returns the port number and GID table index where 60 * a specified GID value occurs. 61 * @device: The device to query. 62 * @gid: The GID value to search for. 63 * @gid_type: The GID type to search for. 64 * @ndev: In RoCE, the net device of the device. NULL means ignore. 65 * @port_num: The port number of the device where the GID value was found. 66 * @index: The index into the cached GID table where the GID was found. This 67 * parameter may be NULL. 68 * 69 * ib_find_cached_gid() searches for the specified GID value in 70 * the local software cache. 71 */ 72 int ib_find_cached_gid(struct ib_device *device, 73 const union ib_gid *gid, 74 enum ib_gid_type gid_type, 75 struct net_device *ndev, 76 u8 *port_num, 77 u16 *index); 78 79 /** 80 * ib_find_cached_gid_by_port - Returns the GID table index where a specified 81 * GID value occurs 82 * @device: The device to query. 83 * @gid: The GID value to search for. 84 * @gid_type: The GID type to search for. 85 * @port_num: The port number of the device where the GID value sould be 86 * searched. 87 * @ndev: In RoCE, the net device of the device. Null means ignore. 88 * @index: The index into the cached GID table where the GID was found. This 89 * parameter may be NULL. 90 * 91 * ib_find_cached_gid() searches for the specified GID value in 92 * the local software cache. 93 */ 94 int ib_find_cached_gid_by_port(struct ib_device *device, 95 const union ib_gid *gid, 96 enum ib_gid_type gid_type, 97 u8 port_num, 98 struct net_device *ndev, 99 u16 *index); 100 101 int ib_find_gid_by_filter(struct ib_device *device, 102 const union ib_gid *gid, 103 u8 port_num, 104 bool (*filter)(const union ib_gid *gid, 105 const struct ib_gid_attr *, 106 void *), 107 void *context, u16 *index); 108 /** 109 * ib_get_cached_pkey - Returns a cached PKey table entry 110 * @device: The device to query. 111 * @port_num: The port number of the device to query. 112 * @index: The index into the cached PKey table to query. 113 * @pkey: The PKey value found at the specified index. 114 * 115 * ib_get_cached_pkey() fetches the specified PKey table entry stored in 116 * the local software cache. 117 */ 118 int ib_get_cached_pkey(struct ib_device *device_handle, 119 u8 port_num, 120 int index, 121 u16 *pkey); 122 123 /** 124 * ib_find_cached_pkey - Returns the PKey table index where a specified 125 * PKey value occurs. 126 * @device: The device to query. 127 * @port_num: The port number of the device to search for the PKey. 128 * @pkey: The PKey value to search for. 129 * @index: The index into the cached PKey table where the PKey was found. 130 * 131 * ib_find_cached_pkey() searches the specified PKey table in 132 * the local software cache. 133 */ 134 int ib_find_cached_pkey(struct ib_device *device, 135 u8 port_num, 136 u16 pkey, 137 u16 *index); 138 139 /** 140 * ib_find_exact_cached_pkey - Returns the PKey table index where a specified 141 * PKey value occurs. Comparison uses the FULL 16 bits (incl membership bit) 142 * @device: The device to query. 143 * @port_num: The port number of the device to search for the PKey. 144 * @pkey: The PKey value to search for. 145 * @index: The index into the cached PKey table where the PKey was found. 146 * 147 * ib_find_exact_cached_pkey() searches the specified PKey table in 148 * the local software cache. 149 */ 150 int ib_find_exact_cached_pkey(struct ib_device *device, 151 u8 port_num, 152 u16 pkey, 153 u16 *index); 154 155 /** 156 * ib_get_cached_lmc - Returns a cached lmc table entry 157 * @device: The device to query. 158 * @port_num: The port number of the device to query. 159 * @lmc: The lmc value for the specified port for that device. 160 * 161 * ib_get_cached_lmc() fetches the specified lmc table entry stored in 162 * the local software cache. 163 */ 164 int ib_get_cached_lmc(struct ib_device *device, 165 u8 port_num, 166 u8 *lmc); 167 168 #endif /* _IB_CACHE_H */ 169