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 int ib_find_cached_gid(struct ib_device *device, 59 const union ib_gid *gid, 60 enum ib_gid_type gid_type, 61 struct net_device *ndev, 62 u8 *port_num, 63 u16 *index); 64 65 int ib_find_cached_gid_by_port(struct ib_device *device, 66 const union ib_gid *gid, 67 enum ib_gid_type gid_type, 68 u8 port_num, 69 struct net_device *ndev, 70 u16 *index); 71 72 int ib_find_gid_by_filter(struct ib_device *device, 73 const union ib_gid *gid, 74 u8 port_num, 75 bool (*filter)(const union ib_gid *gid, 76 const struct ib_gid_attr *, 77 void *), 78 void *context, u16 *index); 79 /** 80 * ib_get_cached_pkey - Returns a cached PKey table entry 81 * @device: The device to query. 82 * @port_num: The port number of the device to query. 83 * @index: The index into the cached PKey table to query. 84 * @pkey: The PKey value found at the specified index. 85 * 86 * ib_get_cached_pkey() fetches the specified PKey table entry stored in 87 * the local software cache. 88 */ 89 int ib_get_cached_pkey(struct ib_device *device_handle, 90 u8 port_num, 91 int index, 92 u16 *pkey); 93 94 /** 95 * ib_find_cached_pkey - Returns the PKey table index where a specified 96 * PKey value occurs. 97 * @device: The device to query. 98 * @port_num: The port number of the device to search for the PKey. 99 * @pkey: The PKey value to search for. 100 * @index: The index into the cached PKey table where the PKey was found. 101 * 102 * ib_find_cached_pkey() searches the specified PKey table in 103 * the local software cache. 104 */ 105 int ib_find_cached_pkey(struct ib_device *device, 106 u8 port_num, 107 u16 pkey, 108 u16 *index); 109 110 /** 111 * ib_find_exact_cached_pkey - Returns the PKey table index where a specified 112 * PKey value occurs. Comparison uses the FULL 16 bits (incl membership bit) 113 * @device: The device to query. 114 * @port_num: The port number of the device to search for the PKey. 115 * @pkey: The PKey value to search for. 116 * @index: The index into the cached PKey table where the PKey was found. 117 * 118 * ib_find_exact_cached_pkey() searches the specified PKey table in 119 * the local software cache. 120 */ 121 int ib_find_exact_cached_pkey(struct ib_device *device, 122 u8 port_num, 123 u16 pkey, 124 u16 *index); 125 126 /** 127 * ib_get_cached_lmc - Returns a cached lmc table entry 128 * @device: The device to query. 129 * @port_num: The port number of the device to query. 130 * @lmc: The lmc value for the specified port for that device. 131 * 132 * ib_get_cached_lmc() fetches the specified lmc table entry stored in 133 * the local software cache. 134 */ 135 int ib_get_cached_lmc(struct ib_device *device, 136 u8 port_num, 137 u8 *lmc); 138 139 /** 140 * ib_get_cached_port_state - Returns a cached port state table entry 141 * @device: The device to query. 142 * @port_num: The port number of the device to query. 143 * @port_state: port_state for the specified port for that device. 144 * 145 * ib_get_cached_port_state() fetches the specified port_state table entry stored in 146 * the local software cache. 147 */ 148 int ib_get_cached_port_state(struct ib_device *device, 149 u8 port_num, 150 enum ib_port_state *port_active); 151 152 bool rdma_is_zero_gid(const union ib_gid *gid); 153 #endif /* _IB_CACHE_H */ 154