release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/infiniband/core/sa.h

   1 /*
   2  * Copyright (c) 2004 Topspin Communications.  All rights reserved.
   3  * Copyright (c) 2005 Voltaire, Inc.  All rights reserved.
   4  * Copyright (c) 2006 Intel Corporation.  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 SA_H
  36 #define SA_H
  37
  38 #include <rdma/ib_sa.h>
  39
  40 static inline void ib_sa_client_get(struct ib_sa_client *client)
  41 {
  42         atomic_inc(&client->users);
  43 }
  44
  45 static inline void ib_sa_client_put(struct ib_sa_client *client)
  46 {
  47         if (atomic_dec_and_test(&client->users))
  48                 complete(&client->comp);
  49 }
  50
  51 int ib_sa_mcmember_rec_query(struct ib_sa_client *client,
  52                              struct ib_device *device, u8 port_num,
  53                              u8 method,
  54                              struct ib_sa_mcmember_rec *rec,
  55                              ib_sa_comp_mask comp_mask,
  56                              int timeout_ms, gfp_t gfp_mask,
  57                              void (*callback)(int status,
  58                                               struct ib_sa_mcmember_rec *resp,
  59                                               void *context),
  60                              void *context,
  61                              struct ib_sa_query **sa_query);
  62
  63 int mcast_init(void);
  64 void mcast_cleanup(void);
  65
  66 #endif /* SA_H */