LXR linux/include/rdma/ib

   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
  40int rdma_query_gid(struct ib_device *device, u8 port_num, int index,
  41                   union ib_gid *gid);
  42const 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);
  46const 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);
  51const 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/**
  58 * ib_get_cached_pkey - Returns a cached PKey table entry
  59 * @device: The device to query.
  60 * @port_num: The port number of the device to query.
  61 * @index: The index into the cached PKey table to query.
  62 * @pkey: The PKey value found at the specified index.
  63 *
  64 * ib_get_cached_pkey() fetches the specified PKey table entry stored in
  65 * the local software cache.
  66 */
  67int ib_get_cached_pkey(struct ib_device    *device_handle,
  68                       u8                   port_num,
  69                       int                  index,
  70                       u16                 *pkey);
  71
  72/**
  73 * ib_find_cached_pkey - Returns the PKey table index where a specified
  74 *   PKey value occurs.
  75 * @device: The device to query.
  76 * @port_num: The port number of the device to search for the PKey.
  77 * @pkey: The PKey value to search for.
  78 * @index: The index into the cached PKey table where the PKey was found.
  79 *
  80 * ib_find_cached_pkey() searches the specified PKey table in
  81 * the local software cache.
  82 */
  83int ib_find_cached_pkey(struct ib_device    *device,
  84                        u8                   port_num,
  85                        u16                  pkey,
  86                        u16                 *index);
  87
  88/**
  89 * ib_find_exact_cached_pkey - Returns the PKey table index where a specified
  90 *   PKey value occurs. Comparison uses the FULL 16 bits (incl membership bit)
  91 * @device: The device to query.
  92 * @port_num: The port number of the device to search for the PKey.
  93 * @pkey: The PKey value to search for.
  94 * @index: The index into the cached PKey table where the PKey was found.
  95 *
  96 * ib_find_exact_cached_pkey() searches the specified PKey table in
  97 * the local software cache.
  98 */
  99int ib_find_exact_cached_pkey(struct ib_device    *device,
 100                              u8                   port_num,
 101                              u16                  pkey,
 102                              u16                 *index);
 103
 104/**
 105 * ib_get_cached_lmc - Returns a cached lmc table entry
 106 * @device: The device to query.
 107 * @port_num: The port number of the device to query.
 108 * @lmc: The lmc value for the specified port for that device.
 109 *
 110 * ib_get_cached_lmc() fetches the specified lmc table entry stored in
 111 * the local software cache.
 112 */
 113int ib_get_cached_lmc(struct ib_device *device,
 114                      u8                port_num,
 115                      u8                *lmc);
 116
 117/**
 118 * ib_get_cached_port_state - Returns a cached port state table entry
 119 * @device: The device to query.
 120 * @port_num: The port number of the device to query.
 121 * @port_state: port_state for the specified port for that device.
 122 *
 123 * ib_get_cached_port_state() fetches the specified port_state table entry stored in
 124 * the local software cache.
 125 */
 126int ib_get_cached_port_state(struct ib_device *device,
 127                              u8                port_num,
 128                              enum ib_port_state *port_active);
 129
 130bool rdma_is_zero_gid(const union ib_gid *gid);
 131const struct ib_gid_attr *rdma_get_gid_attr(struct ib_device *device,
 132                                            u8 port_num, int index);
 133void rdma_put_gid_attr(const struct ib_gid_attr *attr);
 134void rdma_hold_gid_attr(const struct ib_gid_attr *attr);
 135
 136#endif /* _IB_CACHE_H */
 137