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 int rdma_query_gid(struct ib_device *device, u8 port_num, int index, 41 union ib_gid *gid); 42 const struct ib_gid_attr *rdma_find_gid(struct ib_device *device, 43 const union ib_gid *gid, 44 enum ib_gid_type gid_type, 45 struct net_device *ndev); 46 const struct ib_gid_attr *rdma_find_gid_by_port(struct ib_device *ib_dev, 47 const union ib_gid *gid, 48 enum ib_gid_type gid_type, 49 u8 port, 50 struct net_device *ndev); 51 const struct ib_gid_attr *rdma_find_gid_by_filter( 52 struct ib_device *device, const union ib_gid *gid, u8 port_num, 53 bool (*filter)(const union ib_gid *gid, const struct ib_gid_attr *, 54 void *), 55 void *context); 56 57 int rdma_read_gid_l2_fields(const struct ib_gid_attr *attr, 58 u16 *vlan_id, u8 *smac); 59 struct net_device *rdma_read_gid_attr_ndev_rcu(const struct ib_gid_attr *attr); 60 61 /** 62 * ib_get_cached_pkey - Returns a cached PKey table entry 63 * @device: The device to query. 64 * @port_num: The port number of the device to query. 65 * @index: The index into the cached PKey table to query. 66 * @pkey: The PKey value found at the specified index. 67 * 68 * ib_get_cached_pkey() fetches the specified PKey table entry stored in 69 * the local software cache. 70 */ 71 int ib_get_cached_pkey(struct ib_device *device_handle, 72 u8 port_num, 73 int index, 74 u16 *pkey); 75 76 /** 77 * ib_find_cached_pkey - Returns the PKey table index where a specified 78 * PKey value occurs. 79 * @device: The device to query. 80 * @port_num: The port number of the device to search for the PKey. 81 * @pkey: The PKey value to search for. 82 * @index: The index into the cached PKey table where the PKey was found. 83 * 84 * ib_find_cached_pkey() searches the specified PKey table in 85 * the local software cache. 86 */ 87 int ib_find_cached_pkey(struct ib_device *device, 88 u8 port_num, 89 u16 pkey, 90 u16 *index); 91 92 /** 93 * ib_find_exact_cached_pkey - Returns the PKey table index where a specified 94 * PKey value occurs. Comparison uses the FULL 16 bits (incl membership bit) 95 * @device: The device to query. 96 * @port_num: The port number of the device to search for the PKey. 97 * @pkey: The PKey value to search for. 98 * @index: The index into the cached PKey table where the PKey was found. 99 * 100 * ib_find_exact_cached_pkey() searches the specified PKey table in 101 * the local software cache. 102 */ 103 int ib_find_exact_cached_pkey(struct ib_device *device, 104 u8 port_num, 105 u16 pkey, 106 u16 *index); 107 108 /** 109 * ib_get_cached_lmc - Returns a cached lmc table entry 110 * @device: The device to query. 111 * @port_num: The port number of the device to query. 112 * @lmc: The lmc value for the specified port for that device. 113 * 114 * ib_get_cached_lmc() fetches the specified lmc table entry stored in 115 * the local software cache. 116 */ 117 int ib_get_cached_lmc(struct ib_device *device, 118 u8 port_num, 119 u8 *lmc); 120 121 /** 122 * ib_get_cached_port_state - Returns a cached port state table entry 123 * @device: The device to query. 124 * @port_num: The port number of the device to query. 125 * @port_state: port_state for the specified port for that device. 126 * 127 * ib_get_cached_port_state() fetches the specified port_state table entry stored in 128 * the local software cache. 129 */ 130 int ib_get_cached_port_state(struct ib_device *device, 131 u8 port_num, 132 enum ib_port_state *port_active); 133 134 bool rdma_is_zero_gid(const union ib_gid *gid); 135 const struct ib_gid_attr *rdma_get_gid_attr(struct ib_device *device, 136 u8 port_num, int index); 137 void rdma_put_gid_attr(const struct ib_gid_attr *attr); 138 void rdma_hold_gid_attr(const struct ib_gid_attr *attr); 139 140 #endif /* _IB_CACHE_H */