drivers/infiniband/core/core_priv.h

   1 /*
   2  * Copyright (c) 2004 Topspin Communications.  All rights reserved.
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and/or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  */
  32
  33 #ifndef _CORE_PRIV_H
  34 #define _CORE_PRIV_H
  35
  36 #include <linux/list.h>
  37 #include <linux/spinlock.h>
  38 #include <linux/cgroup_rdma.h>
  39
  40 #include <rdma/ib_verbs.h>
  41 #include <rdma/opa_addr.h>
  42 #include <rdma/ib_mad.h>
  43 #include "mad_priv.h"
  44
  45 struct pkey_index_qp_list {
  46         struct list_head    pkey_index_list;
  47         u16                 pkey_index;
  48         /* Lock to hold while iterating the qp_list. */
  49         spinlock_t          qp_list_lock;
  50         struct list_head    qp_list;
  51 };
  52
  53 #if IS_ENABLED(CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS)
  54 int cma_configfs_init(void);
  55 void cma_configfs_exit(void);
  56 #else
  57 static inline int cma_configfs_init(void)
  58 {
  59         return 0;
  60 }
  61
  62 static inline void cma_configfs_exit(void)
  63 {
  64 }
  65 #endif
  66 struct cma_device;
  67 void cma_ref_dev(struct cma_device *cma_dev);
  68 void cma_deref_dev(struct cma_device *cma_dev);
  69 typedef bool (*cma_device_filter)(struct ib_device *, void *);
  70 struct cma_device *cma_enum_devices_by_ibdev(cma_device_filter  filter,
  71                                              void               *cookie);
  72 int cma_get_default_gid_type(struct cma_device *cma_dev,
  73                              unsigned int port);
  74 int cma_set_default_gid_type(struct cma_device *cma_dev,
  75                              unsigned int port,
  76                              enum ib_gid_type default_gid_type);
  77 int cma_get_default_roce_tos(struct cma_device *cma_dev, unsigned int port);
  78 int cma_set_default_roce_tos(struct cma_device *a_dev, unsigned int port,
  79                              u8 default_roce_tos);
  80 struct ib_device *cma_get_ib_dev(struct cma_device *cma_dev);
  81
  82 int  ib_device_register_sysfs(struct ib_device *device,
  83                               int (*port_callback)(struct ib_device *,
  84                                                    u8, struct kobject *));
  85 void ib_device_unregister_sysfs(struct ib_device *device);
  86
  87 void ib_cache_setup(void);
  88 void ib_cache_cleanup(void);
  89
  90 typedef void (*roce_netdev_callback)(struct ib_device *device, u8 port,
  91               struct net_device *idev, void *cookie);
  92
  93 typedef int (*roce_netdev_filter)(struct ib_device *device, u8 port,
  94              struct net_device *idev, void *cookie);
  95
  96 void ib_enum_roce_netdev(struct ib_device *ib_dev,
  97                          roce_netdev_filter filter,
  98                          void *filter_cookie,
  99                          roce_netdev_callback cb,
 100                          void *cookie);
 101 void ib_enum_all_roce_netdevs(roce_netdev_filter filter,
 102                               void *filter_cookie,
 103                               roce_netdev_callback cb,
 104                               void *cookie);
 105
 106 typedef int (*nldev_callback)(struct ib_device *device,
 107                               struct sk_buff *skb,
 108                               struct netlink_callback *cb,
 109                               unsigned int idx);
 110
 111 int ib_enum_all_devs(nldev_callback nldev_cb, struct sk_buff *skb,
 112                      struct netlink_callback *cb);
 113
 114 enum ib_cache_gid_default_mode {
 115         IB_CACHE_GID_DEFAULT_MODE_SET,
 116         IB_CACHE_GID_DEFAULT_MODE_DELETE
 117 };
 118
 119 int ib_cache_gid_parse_type_str(const char *buf);
 120
 121 const char *ib_cache_gid_type_str(enum ib_gid_type gid_type);
 122
 123 void ib_cache_gid_set_default_gid(struct ib_device *ib_dev, u8 port,
 124                                   struct net_device *ndev,
 125                                   unsigned long gid_type_mask,
 126                                   enum ib_cache_gid_default_mode mode);
 127
 128 int ib_cache_gid_add(struct ib_device *ib_dev, u8 port,
 129                      union ib_gid *gid, struct ib_gid_attr *attr);
 130
 131 int ib_cache_gid_del(struct ib_device *ib_dev, u8 port,
 132                      union ib_gid *gid, struct ib_gid_attr *attr);
 133
 134 int ib_cache_gid_del_all_netdev_gids(struct ib_device *ib_dev, u8 port,
 135                                      struct net_device *ndev);
 136
 137 int roce_gid_mgmt_init(void);
 138 void roce_gid_mgmt_cleanup(void);
 139
 140 int roce_rescan_device(struct ib_device *ib_dev);
 141 unsigned long roce_gid_type_mask_support(struct ib_device *ib_dev, u8 port);
 142
 143 int ib_cache_setup_one(struct ib_device *device);
 144 void ib_cache_cleanup_one(struct ib_device *device);
 145 void ib_cache_release_one(struct ib_device *device);
 146
 147 #ifdef CONFIG_CGROUP_RDMA
 148 int ib_device_register_rdmacg(struct ib_device *device);
 149 void ib_device_unregister_rdmacg(struct ib_device *device);
 150
 151 int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj,
 152                          struct ib_device *device,
 153                          enum rdmacg_resource_type resource_index);
 154
 155 void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj,
 156                         struct ib_device *device,
 157                         enum rdmacg_resource_type resource_index);
 158 #else
 159 static inline int ib_device_register_rdmacg(struct ib_device *device)
 160 { return 0; }
 161
 162 static inline void ib_device_unregister_rdmacg(struct ib_device *device)
 163 { }
 164
 165 static inline int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj,
 166                                        struct ib_device *device,
 167                                        enum rdmacg_resource_type resource_index)
 168 { return 0; }
 169
 170 static inline void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj,
 171                                       struct ib_device *device,
 172                                       enum rdmacg_resource_type resource_index)
 173 { }
 174 #endif
 175
 176 static inline bool rdma_is_upper_dev_rcu(struct net_device *dev,
 177                                          struct net_device *upper)
 178 {
 179         return netdev_has_upper_dev_all_rcu(dev, upper);
 180 }
 181
 182 int addr_init(void);
 183 void addr_cleanup(void);
 184
 185 int ib_mad_init(void);
 186 void ib_mad_cleanup(void);
 187
 188 int ib_sa_init(void);
 189 void ib_sa_cleanup(void);
 190
 191 int rdma_nl_init(void);
 192 void rdma_nl_exit(void);
 193
 194 /**
 195  * Check if there are any listeners to the netlink group
 196  * @group: the netlink group ID
 197  * Returns 0 on success or a negative for no listeners.
 198  */
 199 int ibnl_chk_listeners(unsigned int group);
 200
 201 int ib_nl_handle_resolve_resp(struct sk_buff *skb,
 202                               struct nlmsghdr *nlh,
 203                               struct netlink_ext_ack *extack);
 204 int ib_nl_handle_set_timeout(struct sk_buff *skb,
 205                              struct nlmsghdr *nlh,
 206                              struct netlink_ext_ack *extack);
 207 int ib_nl_handle_ip_res_resp(struct sk_buff *skb,
 208                              struct nlmsghdr *nlh,
 209                              struct netlink_ext_ack *extack);
 210
 211 int ib_get_cached_subnet_prefix(struct ib_device *device,
 212                                 u8                port_num,
 213                                 u64              *sn_pfx);
 214
 215 #ifdef CONFIG_SECURITY_INFINIBAND
 216 int ib_security_pkey_access(struct ib_device *dev,
 217                             u8 port_num,
 218                             u16 pkey_index,
 219                             void *sec);
 220
 221 void ib_security_destroy_port_pkey_list(struct ib_device *device);
 222
 223 void ib_security_cache_change(struct ib_device *device,
 224                               u8 port_num,
 225                               u64 subnet_prefix);
 226
 227 int ib_security_modify_qp(struct ib_qp *qp,
 228                           struct ib_qp_attr *qp_attr,
 229                           int qp_attr_mask,
 230                           struct ib_udata *udata);
 231
 232 int ib_create_qp_security(struct ib_qp *qp, struct ib_device *dev);
 233 void ib_destroy_qp_security_begin(struct ib_qp_security *sec);
 234 void ib_destroy_qp_security_abort(struct ib_qp_security *sec);
 235 void ib_destroy_qp_security_end(struct ib_qp_security *sec);
 236 int ib_open_shared_qp_security(struct ib_qp *qp, struct ib_device *dev);
 237 void ib_close_shared_qp_security(struct ib_qp_security *sec);
 238 int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
 239                                 enum ib_qp_type qp_type);
 240 void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent);
 241 int ib_mad_enforce_security(struct ib_mad_agent_private *map, u16 pkey_index);
 242 #else
 243 static inline int ib_security_pkey_access(struct ib_device *dev,
 244                                           u8 port_num,
 245                                           u16 pkey_index,
 246                                           void *sec)
 247 {
 248         return 0;
 249 }
 250
 251 static inline void ib_security_destroy_port_pkey_list(struct ib_device *device)
 252 {
 253 }
 254
 255 static inline void ib_security_cache_change(struct ib_device *device,
 256                                             u8 port_num,
 257                                             u64 subnet_prefix)
 258 {
 259 }
 260
 261 static inline int ib_security_modify_qp(struct ib_qp *qp,
 262                                         struct ib_qp_attr *qp_attr,
 263                                         int qp_attr_mask,
 264                                         struct ib_udata *udata)
 265 {
 266         return qp->device->modify_qp(qp->real_qp,
 267                                      qp_attr,
 268                                      qp_attr_mask,
 269                                      udata);
 270 }
 271
 272 static inline int ib_create_qp_security(struct ib_qp *qp,
 273                                         struct ib_device *dev)
 274 {
 275         return 0;
 276 }
 277
 278 static inline void ib_destroy_qp_security_begin(struct ib_qp_security *sec)
 279 {
 280 }
 281
 282 static inline void ib_destroy_qp_security_abort(struct ib_qp_security *sec)
 283 {
 284 }
 285
 286 static inline void ib_destroy_qp_security_end(struct ib_qp_security *sec)
 287 {
 288 }
 289
 290 static inline int ib_open_shared_qp_security(struct ib_qp *qp,
 291                                              struct ib_device *dev)
 292 {
 293         return 0;
 294 }
 295
 296 static inline void ib_close_shared_qp_security(struct ib_qp_security *sec)
 297 {
 298 }
 299
 300 static inline int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
 301                                               enum ib_qp_type qp_type)
 302 {
 303         return 0;
 304 }
 305
 306 static inline void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent)
 307 {
 308 }
 309
 310 static inline int ib_mad_enforce_security(struct ib_mad_agent_private *map,
 311                                           u16 pkey_index)
 312 {
 313         return 0;
 314 }
 315 #endif
 316
 317 struct ib_device *ib_device_get_by_index(u32 ifindex);
 318 /* RDMA device netlink */
 319 void nldev_init(void);
 320 void nldev_exit(void);
 321 #endif /* _CORE_PRIV_H */