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 #include <net/net_namespace.h> 40 #include <net/netns/generic.h> 41 42 #include <rdma/ib_verbs.h> 43 #include <rdma/opa_addr.h> 44 #include <rdma/ib_mad.h> 45 #include <rdma/restrack.h> 46 #include "mad_priv.h" 47 #include "restrack.h" 48 49 /* Total number of ports combined across all struct ib_devices's */ 50 #define RDMA_MAX_PORTS 8192 51 52 struct pkey_index_qp_list { 53 struct list_head pkey_index_list; 54 u16 pkey_index; 55 /* Lock to hold while iterating the qp_list. */ 56 spinlock_t qp_list_lock; 57 struct list_head qp_list; 58 }; 59 60 /** 61 * struct rdma_dev_net - rdma net namespace metadata for a net 62 * @nl_sock: Pointer to netlink socket 63 * @net: Pointer to owner net namespace 64 * @id: xarray id to identify the net namespace. 65 */ 66 struct rdma_dev_net { 67 struct sock *nl_sock; 68 possible_net_t net; 69 u32 id; 70 }; 71 72 extern const struct attribute_group ib_dev_attr_group; 73 extern bool ib_devices_shared_netns; 74 extern unsigned int rdma_dev_net_id; 75 76 static inline struct rdma_dev_net *rdma_net_to_dev_net(struct net *net) 77 { 78 return net_generic(net, rdma_dev_net_id); 79 } 80 81 int ib_device_rename(struct ib_device *ibdev, const char *name); 82 int ib_device_set_dim(struct ib_device *ibdev, u8 use_dim); 83 84 typedef void (*roce_netdev_callback)(struct ib_device *device, u32 port, 85 struct net_device *idev, void *cookie); 86 87 typedef bool (*roce_netdev_filter)(struct ib_device *device, u32 port, 88 struct net_device *idev, void *cookie); 89 90 struct net_device *ib_device_get_netdev(struct ib_device *ib_dev, 91 u32 port); 92 93 void ib_enum_roce_netdev(struct ib_device *ib_dev, 94 roce_netdev_filter filter, 95 void *filter_cookie, 96 roce_netdev_callback cb, 97 void *cookie); 98 void ib_enum_all_roce_netdevs(roce_netdev_filter filter, 99 void *filter_cookie, 100 roce_netdev_callback cb, 101 void *cookie); 102 103 void ib_device_enable_gid_updates(struct ib_device *device); 104 void ib_device_disable_gid_updates(struct ib_device *device); 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 struct ib_client_nl_info { 115 struct sk_buff *nl_msg; 116 struct device *cdev; 117 u32 port; 118 u64 abi; 119 }; 120 int ib_get_client_nl_info(struct ib_device *ibdev, const char *client_name, 121 struct ib_client_nl_info *res); 122 123 enum ib_cache_gid_default_mode { 124 IB_CACHE_GID_DEFAULT_MODE_SET, 125 IB_CACHE_GID_DEFAULT_MODE_DELETE 126 }; 127 128 int ib_cache_gid_parse_type_str(const char *buf); 129 130 const char *ib_cache_gid_type_str(enum ib_gid_type gid_type); 131 132 void ib_cache_gid_set_default_gid(struct ib_device *ib_dev, u32 port, 133 struct net_device *ndev, 134 unsigned long gid_type_mask, 135 enum ib_cache_gid_default_mode mode); 136 137 int ib_cache_gid_add(struct ib_device *ib_dev, u32 port, 138 union ib_gid *gid, struct ib_gid_attr *attr); 139 140 int ib_cache_gid_del(struct ib_device *ib_dev, u32 port, 141 union ib_gid *gid, struct ib_gid_attr *attr); 142 143 int ib_cache_gid_del_all_netdev_gids(struct ib_device *ib_dev, u32 port, 144 struct net_device *ndev); 145 146 int roce_gid_mgmt_init(void); 147 void roce_gid_mgmt_cleanup(void); 148 149 unsigned long roce_gid_type_mask_support(struct ib_device *ib_dev, u32 port); 150 151 int ib_cache_setup_one(struct ib_device *device); 152 void ib_cache_cleanup_one(struct ib_device *device); 153 void ib_cache_release_one(struct ib_device *device); 154 void ib_dispatch_event_clients(struct ib_event *event); 155 156 #ifdef CONFIG_CGROUP_RDMA 157 void ib_device_register_rdmacg(struct ib_device *device); 158 void ib_device_unregister_rdmacg(struct ib_device *device); 159 160 int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj, 161 struct ib_device *device, 162 enum rdmacg_resource_type resource_index); 163 164 void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj, 165 struct ib_device *device, 166 enum rdmacg_resource_type resource_index); 167 #else 168 static inline void ib_device_register_rdmacg(struct ib_device *device) 169 { 170 } 171 172 static inline void ib_device_unregister_rdmacg(struct ib_device *device) 173 { 174 } 175 176 static inline int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj, 177 struct ib_device *device, 178 enum rdmacg_resource_type resource_index) 179 { 180 return 0; 181 } 182 183 static inline void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj, 184 struct ib_device *device, 185 enum rdmacg_resource_type resource_index) 186 { 187 } 188 #endif 189 190 static inline bool rdma_is_upper_dev_rcu(struct net_device *dev, 191 struct net_device *upper) 192 { 193 return netdev_has_upper_dev_all_rcu(dev, upper); 194 } 195 196 int addr_init(void); 197 void addr_cleanup(void); 198 199 int ib_mad_init(void); 200 void ib_mad_cleanup(void); 201 202 int ib_sa_init(void); 203 void ib_sa_cleanup(void); 204 205 void rdma_nl_init(void); 206 void rdma_nl_exit(void); 207 208 int ib_nl_handle_resolve_resp(struct sk_buff *skb, 209 struct nlmsghdr *nlh, 210 struct netlink_ext_ack *extack); 211 int ib_nl_handle_set_timeout(struct sk_buff *skb, 212 struct nlmsghdr *nlh, 213 struct netlink_ext_ack *extack); 214 int ib_nl_handle_ip_res_resp(struct sk_buff *skb, 215 struct nlmsghdr *nlh, 216 struct netlink_ext_ack *extack); 217 218 void ib_get_cached_subnet_prefix(struct ib_device *device, 219 u32 port_num, 220 u64 *sn_pfx); 221 222 #ifdef CONFIG_SECURITY_INFINIBAND 223 void ib_security_release_port_pkey_list(struct ib_device *device); 224 225 void ib_security_cache_change(struct ib_device *device, 226 u32 port_num, 227 u64 subnet_prefix); 228 229 int ib_security_modify_qp(struct ib_qp *qp, 230 struct ib_qp_attr *qp_attr, 231 int qp_attr_mask, 232 struct ib_udata *udata); 233 234 int ib_create_qp_security(struct ib_qp *qp, struct ib_device *dev); 235 void ib_destroy_qp_security_begin(struct ib_qp_security *sec); 236 void ib_destroy_qp_security_abort(struct ib_qp_security *sec); 237 void ib_destroy_qp_security_end(struct ib_qp_security *sec); 238 int ib_open_shared_qp_security(struct ib_qp *qp, struct ib_device *dev); 239 void ib_close_shared_qp_security(struct ib_qp_security *sec); 240 int ib_mad_agent_security_setup(struct ib_mad_agent *agent, 241 enum ib_qp_type qp_type); 242 void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent); 243 int ib_mad_enforce_security(struct ib_mad_agent_private *map, u16 pkey_index); 244 void ib_mad_agent_security_change(void); 245 #else 246 static inline void ib_security_release_port_pkey_list(struct ib_device *device) 247 { 248 } 249 250 static inline void ib_security_cache_change(struct ib_device *device, 251 u32 port_num, 252 u64 subnet_prefix) 253 { 254 } 255 256 static inline int ib_security_modify_qp(struct ib_qp *qp, 257 struct ib_qp_attr *qp_attr, 258 int qp_attr_mask, 259 struct ib_udata *udata) 260 { 261 return qp->device->ops.modify_qp(qp->real_qp, 262 qp_attr, 263 qp_attr_mask, 264 udata); 265 } 266 267 static inline int ib_create_qp_security(struct ib_qp *qp, 268 struct ib_device *dev) 269 { 270 return 0; 271 } 272 273 static inline void ib_destroy_qp_security_begin(struct ib_qp_security *sec) 274 { 275 } 276 277 static inline void ib_destroy_qp_security_abort(struct ib_qp_security *sec) 278 { 279 } 280 281 static inline void ib_destroy_qp_security_end(struct ib_qp_security *sec) 282 { 283 } 284 285 static inline int ib_open_shared_qp_security(struct ib_qp *qp, 286 struct ib_device *dev) 287 { 288 return 0; 289 } 290 291 static inline void ib_close_shared_qp_security(struct ib_qp_security *sec) 292 { 293 } 294 295 static inline int ib_mad_agent_security_setup(struct ib_mad_agent *agent, 296 enum ib_qp_type qp_type) 297 { 298 return 0; 299 } 300 301 static inline void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent) 302 { 303 } 304 305 static inline int ib_mad_enforce_security(struct ib_mad_agent_private *map, 306 u16 pkey_index) 307 { 308 return 0; 309 } 310 311 static inline void ib_mad_agent_security_change(void) 312 { 313 } 314 #endif 315 316 struct ib_device *ib_device_get_by_index(const struct net *net, u32 index); 317 318 /* RDMA device netlink */ 319 void nldev_init(void); 320 void nldev_exit(void); 321 322 struct ib_qp *ib_create_qp_user(struct ib_device *dev, struct ib_pd *pd, 323 struct ib_qp_init_attr *attr, 324 struct ib_udata *udata, 325 struct ib_uqp_object *uobj, const char *caller); 326 327 void ib_qp_usecnt_inc(struct ib_qp *qp); 328 void ib_qp_usecnt_dec(struct ib_qp *qp); 329 330 struct rdma_dev_addr; 331 332 int rdma_addr_find_l2_eth_by_grh(const union ib_gid *sgid, 333 const union ib_gid *dgid, 334 u8 *dmac, const struct ib_gid_attr *sgid_attr, 335 int *hoplimit); 336 void rdma_copy_src_l2_addr(struct rdma_dev_addr *dev_addr, 337 const struct net_device *dev); 338 339 struct sa_path_rec; 340 int roce_resolve_route_from_path(struct sa_path_rec *rec, 341 const struct ib_gid_attr *attr); 342 343 struct net_device *rdma_read_gid_attr_ndev_rcu(const struct ib_gid_attr *attr); 344 345 void ib_free_port_attrs(struct ib_core_device *coredev); 346 int ib_setup_port_attrs(struct ib_core_device *coredev); 347 struct rdma_hw_stats *ib_get_hw_stats_port(struct ib_device *ibdev, u32 port_num); 348 void ib_device_release_hw_stats(struct hw_stats_device_data *data); 349 int ib_setup_device_attrs(struct ib_device *ibdev); 350 351 int rdma_compatdev_set(u8 enable); 352 353 int ib_port_register_client_groups(struct ib_device *ibdev, u32 port_num, 354 const struct attribute_group **groups); 355 void ib_port_unregister_client_groups(struct ib_device *ibdev, u32 port_num, 356 const struct attribute_group **groups); 357 358 int ib_device_set_netns_put(struct sk_buff *skb, 359 struct ib_device *dev, u32 ns_fd); 360 361 int rdma_nl_net_init(struct rdma_dev_net *rnet); 362 void rdma_nl_net_exit(struct rdma_dev_net *rnet); 363 364 struct rdma_umap_priv { 365 struct vm_area_struct *vma; 366 struct list_head list; 367 struct rdma_user_mmap_entry *entry; 368 }; 369 370 void rdma_umap_priv_init(struct rdma_umap_priv *priv, 371 struct vm_area_struct *vma, 372 struct rdma_user_mmap_entry *entry); 373 374 void ib_cq_pool_cleanup(struct ib_device *dev); 375 376 bool rdma_nl_get_privileged_qkey(void); 377 #endif /* _CORE_PRIV_H */ 378