drivers/infiniband/core/cma_priv.h

   1 /*
   2  * Copyright (c) 2005 Voltaire Inc.  All rights reserved.
   3  * Copyright (c) 2002-2005, Network Appliance, Inc. All rights reserved.
   4  * Copyright (c) 1999-2005, Mellanox Technologies, Inc. All rights reserved.
   5  * Copyright (c) 2005-2006 Intel Corporation.  All rights reserved.
   6  *
   7  * This software is available to you under a choice of one of two
   8  * licenses.  You may choose to be licensed under the terms of the GNU
   9  * General Public License (GPL) Version 2, available from the file
  10  * COPYING in the main directory of this source tree, or the
  11  * OpenIB.org BSD license below:
  12  *
  13  *     Redistribution and use in source and binary forms, with or
  14  *     without modification, are permitted provided that the following
  15  *     conditions are met:
  16  *
  17  *      - Redistributions of source code must retain the above
  18  *        copyright notice, this list of conditions and the following
  19  *        disclaimer.
  20  *
  21  *      - Redistributions in binary form must reproduce the above
  22  *        copyright notice, this list of conditions and the following
  23  *        disclaimer in the documentation and/or other materials
  24  *        provided with the distribution.
  25  *
  26  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  27  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  29  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  30  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  31  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  32  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  33  * SOFTWARE.
  34  */
  35
  36 #ifndef _CMA_PRIV_H
  37 #define _CMA_PRIV_H
  38
  39 enum rdma_cm_state {
  40         RDMA_CM_IDLE,
  41         RDMA_CM_ADDR_QUERY,
  42         RDMA_CM_ADDR_RESOLVED,
  43         RDMA_CM_ROUTE_QUERY,
  44         RDMA_CM_ROUTE_RESOLVED,
  45         RDMA_CM_CONNECT,
  46         RDMA_CM_DISCONNECT,
  47         RDMA_CM_ADDR_BOUND,
  48         RDMA_CM_LISTEN,
  49         RDMA_CM_DEVICE_REMOVAL,
  50         RDMA_CM_DESTROYING
  51 };
  52
  53 struct rdma_id_private {
  54         struct rdma_cm_id       id;
  55
  56         struct rdma_bind_list   *bind_list;
  57         struct hlist_node       node;
  58         union {
  59                 struct list_head device_item; /* On cma_device->id_list */
  60                 struct list_head listen_any_item; /* On listen_any_list */
  61         };
  62         union {
  63                 /* On rdma_id_private->listen_list */
  64                 struct list_head listen_item;
  65                 struct list_head listen_list;
  66         };
  67         struct list_head        id_list_entry;
  68         struct cma_device       *cma_dev;
  69         struct list_head        mc_list;
  70
  71         int                     internal_id;
  72         enum rdma_cm_state      state;
  73         spinlock_t              lock;
  74         struct mutex            qp_mutex;
  75
  76         struct completion       comp;
  77         refcount_t refcount;
  78         struct mutex            handler_mutex;
  79
  80         int                     backlog;
  81         int                     timeout_ms;
  82         struct ib_sa_query      *query;
  83         int                     query_id;
  84         union {
  85                 struct ib_cm_id *ib;
  86                 struct iw_cm_id *iw;
  87         } cm_id;
  88
  89         u32                     seq_num;
  90         u32                     qkey;
  91         u32                     qp_num;
  92         u32                     options;
  93         u8                      srq;
  94         u8                      tos;
  95         u8                      tos_set:1;
  96         u8                      timeout_set:1;
  97         u8                      min_rnr_timer_set:1;
  98         u8                      reuseaddr;
  99         u8                      afonly;
 100         u8                      timeout;
 101         u8                      min_rnr_timer;
 102         u8 used_resolve_ip;
 103         enum ib_gid_type        gid_type;
 104
 105         /*
 106          * Internal to RDMA/core, don't use in the drivers
 107          */
 108         struct rdma_restrack_entry     res;
 109         struct rdma_ucm_ece ece;
 110 };
 111
 112 #if IS_ENABLED(CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS)
 113 int cma_configfs_init(void);
 114 void cma_configfs_exit(void);
 115 #else
 116 static inline int cma_configfs_init(void)
 117 {
 118         return 0;
 119 }
 120
 121 static inline void cma_configfs_exit(void)
 122 {
 123 }
 124 #endif
 125
 126 void cma_dev_get(struct cma_device *dev);
 127 void cma_dev_put(struct cma_device *dev);
 128 typedef bool (*cma_device_filter)(struct ib_device *, void *);
 129 struct cma_device *cma_enum_devices_by_ibdev(cma_device_filter filter,
 130                                              void *cookie);
 131 int cma_get_default_gid_type(struct cma_device *dev, u32 port);
 132 int cma_set_default_gid_type(struct cma_device *dev, u32 port,
 133                              enum ib_gid_type default_gid_type);
 134 int cma_get_default_roce_tos(struct cma_device *dev, u32 port);
 135 int cma_set_default_roce_tos(struct cma_device *dev, u32 port,
 136                              u8 default_roce_tos);
 137 struct ib_device *cma_get_ib_dev(struct cma_device *dev);
 138
 139 #endif /* _CMA_PRIV_H */