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 typedef int (*nldev_callback)(struct ib_device *device, 104 struct sk_buff *skb, 105 struct netlink_callback *cb, 106 unsigned int idx); 107 108 int ib_enum_all_devs(nldev_callback nldev_cb, struct sk_buff *skb, 109 struct netlink_callback *cb); 110 111 struct ib_client_nl_info { 112 struct sk_buff *nl_msg; 113 struct device *cdev; 114 u32 port; 115 u64 abi; 116 }; 117 int ib_get_client_nl_info(struct ib_device *ibdev, const char *client_name, 118 struct ib_client_nl_info *res); 119 120 enum ib_cache_gid_default_mode { 121 IB_CACHE_GID_DEFAULT_MODE_SET, 122 IB_CACHE_GID_DEFAULT_MODE_DELETE 123 }; 124 125 int ib_cache_gid_parse_type_str(const char *buf); 126 127 const char *ib_cache_gid_type_str(enum ib_gid_type gid_type); 128 129 void ib_cache_gid_set_default_gid(struct ib_device *ib_dev, u32 port, 130 struct net_device *ndev, 131 unsigned long gid_type_mask, 132 enum ib_cache_gid_default_mode mode); 133 134 int ib_cache_gid_add(struct ib_device *ib_dev, u32 port, 135 union ib_gid *gid, struct ib_gid_attr *attr); 136 137 int ib_cache_gid_del(struct ib_device *ib_dev, u32 port, 138 union ib_gid *gid, struct ib_gid_attr *attr); 139 140 int ib_cache_gid_del_all_netdev_gids(struct ib_device *ib_dev, u32 port, 141 struct net_device *ndev); 142 143 int roce_gid_mgmt_init(void); 144 void roce_gid_mgmt_cleanup(void); 145 146 unsigned long roce_gid_type_mask_support(struct ib_device *ib_dev, u32 port); 147 148 int ib_cache_setup_one(struct ib_device *device); 149 void ib_cache_cleanup_one(struct ib_device *device); 150 void ib_cache_release_one(struct ib_device *device); 151 void ib_dispatch_event_clients(struct ib_event *event); 152 153 #ifdef CONFIG_CGROUP_RDMA 154 void ib_device_register_rdmacg(struct ib_device *device); 155 void ib_device_unregister_rdmacg(struct ib_device *device); 156 157 int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj, 158 struct ib_device *device, 159 enum rdmacg_resource_type resource_index); 160 161 void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj, 162 struct ib_device *device, 163 enum rdmacg_resource_type resource_index); 164 #else 165 static inline void ib_device_register_rdmacg(struct ib_device *device) 166 { 167 } 168 169 static inline void ib_device_unregister_rdmacg(struct ib_device *device) 170 { 171 } 172 173 static inline int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj, 174 struct ib_device *device, 175 enum rdmacg_resource_type resource_index) 176 { 177 return 0; 178 } 179 180 static inline void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj, 181 struct ib_device *device, 182 enum rdmacg_resource_type resource_index) 183 { 184 } 185 #endif 186 187 static inline bool rdma_is_upper_dev_rcu(struct net_device *dev, 188 struct net_device *upper) 189 { 190 return netdev_has_upper_dev_all_rcu(dev, upper); 191 } 192 193 int addr_init(void); 194 void addr_cleanup(void); 195 196 int ib_mad_init(void); 197 void ib_mad_cleanup(void); 198 199 int ib_sa_init(void); 200 void ib_sa_cleanup(void); 201 202 void rdma_nl_init(void); 203 void rdma_nl_exit(void); 204 205 int ib_nl_handle_resolve_resp(struct sk_buff *skb, 206 struct nlmsghdr *nlh, 207 struct netlink_ext_ack *extack); 208 int ib_nl_handle_set_timeout(struct sk_buff *skb, 209 struct nlmsghdr *nlh, 210 struct netlink_ext_ack *extack); 211 int ib_nl_handle_ip_res_resp(struct sk_buff *skb, 212 struct nlmsghdr *nlh, 213 struct netlink_ext_ack *extack); 214 215 void ib_get_cached_subnet_prefix(struct ib_device *device, 216 u32 port_num, 217 u64 *sn_pfx); 218 219 #ifdef CONFIG_SECURITY_INFINIBAND 220 void ib_security_release_port_pkey_list(struct ib_device *device); 221 222 void ib_security_cache_change(struct ib_device *device, 223 u32 port_num, 224 u64 subnet_prefix); 225 226 int ib_security_modify_qp(struct ib_qp *qp, 227 struct ib_qp_attr *qp_attr, 228 int qp_attr_mask, 229 struct ib_udata *udata); 230 231 int ib_create_qp_security(struct ib_qp *qp, struct ib_device *dev); 232 void ib_destroy_qp_security_begin(struct ib_qp_security *sec); 233 void ib_destroy_qp_security_abort(struct ib_qp_security *sec); 234 void ib_destroy_qp_security_end(struct ib_qp_security *sec); 235 int ib_open_shared_qp_security(struct ib_qp *qp, struct ib_device *dev); 236 void ib_close_shared_qp_security(struct ib_qp_security *sec); 237 int ib_mad_agent_security_setup(struct ib_mad_agent *agent, 238 enum ib_qp_type qp_type); 239 void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent); 240 int ib_mad_enforce_security(struct ib_mad_agent_private *map, u16 pkey_index); 241 void ib_mad_agent_security_change(void); 242 #else 243 static inline void ib_security_release_port_pkey_list(struct ib_device *device) 244 { 245 } 246 247 static inline void ib_security_cache_change(struct ib_device *device, 248 u32 port_num, 249 u64 subnet_prefix) 250 { 251 } 252 253 static inline int ib_security_modify_qp(struct ib_qp *qp, 254 struct ib_qp_attr *qp_attr, 255 int qp_attr_mask, 256 struct ib_udata *udata) 257 { 258 return qp->device->ops.modify_qp(qp->real_qp, 259 qp_attr, 260 qp_attr_mask, 261 udata); 262 } 263 264 static inline int ib_create_qp_security(struct ib_qp *qp, 265 struct ib_device *dev) 266 { 267 return 0; 268 } 269 270 static inline void ib_destroy_qp_security_begin(struct ib_qp_security *sec) 271 { 272 } 273 274 static inline void ib_destroy_qp_security_abort(struct ib_qp_security *sec) 275 { 276 } 277 278 static inline void ib_destroy_qp_security_end(struct ib_qp_security *sec) 279 { 280 } 281 282 static inline int ib_open_shared_qp_security(struct ib_qp *qp, 283 struct ib_device *dev) 284 { 285 return 0; 286 } 287 288 static inline void ib_close_shared_qp_security(struct ib_qp_security *sec) 289 { 290 } 291 292 static inline int ib_mad_agent_security_setup(struct ib_mad_agent *agent, 293 enum ib_qp_type qp_type) 294 { 295 return 0; 296 } 297 298 static inline void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent) 299 { 300 } 301 302 static inline int ib_mad_enforce_security(struct ib_mad_agent_private *map, 303 u16 pkey_index) 304 { 305 return 0; 306 } 307 308 static inline void ib_mad_agent_security_change(void) 309 { 310 } 311 #endif 312 313 struct ib_device *ib_device_get_by_index(const struct net *net, u32 index); 314 315 /* RDMA device netlink */ 316 void nldev_init(void); 317 void nldev_exit(void); 318 319 static inline struct ib_qp * 320 _ib_create_qp(struct ib_device *dev, struct ib_pd *pd, 321 struct ib_qp_init_attr *attr, struct ib_udata *udata, 322 struct ib_uqp_object *uobj, const char *caller) 323 { 324 struct ib_qp *qp; 325 326 if (!dev->ops.create_qp) 327 return ERR_PTR(-EOPNOTSUPP); 328 329 qp = dev->ops.create_qp(pd, attr, udata); 330 if (IS_ERR(qp)) 331 return qp; 332 333 qp->device = dev; 334 qp->pd = pd; 335 qp->uobject = uobj; 336 qp->real_qp = qp; 337 338 qp->qp_type = attr->qp_type; 339 qp->rwq_ind_tbl = attr->rwq_ind_tbl; 340 qp->send_cq = attr->send_cq; 341 qp->recv_cq = attr->recv_cq; 342 qp->srq = attr->srq; 343 qp->rwq_ind_tbl = attr->rwq_ind_tbl; 344 qp->event_handler = attr->event_handler; 345 qp->port = attr->port_num; 346 347 atomic_set(&qp->usecnt, 0); 348 spin_lock_init(&qp->mr_lock); 349 INIT_LIST_HEAD(&qp->rdma_mrs); 350 INIT_LIST_HEAD(&qp->sig_mrs); 351 352 rdma_restrack_new(&qp->res, RDMA_RESTRACK_QP); 353 WARN_ONCE(!udata && !caller, "Missing kernel QP owner"); 354 rdma_restrack_set_name(&qp->res, udata ? NULL : caller); 355 rdma_restrack_add(&qp->res); 356 return qp; 357 } 358 359 struct rdma_dev_addr; 360 int rdma_resolve_ip_route(struct sockaddr *src_addr, 361 const struct sockaddr *dst_addr, 362 struct rdma_dev_addr *addr); 363 364 int rdma_addr_find_l2_eth_by_grh(const union ib_gid *sgid, 365 const union ib_gid *dgid, 366 u8 *dmac, const struct ib_gid_attr *sgid_attr, 367 int *hoplimit); 368 void rdma_copy_src_l2_addr(struct rdma_dev_addr *dev_addr, 369 const struct net_device *dev); 370 371 struct sa_path_rec; 372 int roce_resolve_route_from_path(struct sa_path_rec *rec, 373 const struct ib_gid_attr *attr); 374 375 struct net_device *rdma_read_gid_attr_ndev_rcu(const struct ib_gid_attr *attr); 376 377 void ib_free_port_attrs(struct ib_core_device *coredev); 378 int ib_setup_port_attrs(struct ib_core_device *coredev); 379 struct rdma_hw_stats *ib_get_hw_stats_port(struct ib_device *ibdev, u32 port_num); 380 void ib_device_release_hw_stats(struct hw_stats_device_data *data); 381 int ib_setup_device_attrs(struct ib_device *ibdev); 382 383 int rdma_compatdev_set(u8 enable); 384 385 int ib_port_register_client_groups(struct ib_device *ibdev, u32 port_num, 386 const struct attribute_group **groups); 387 void ib_port_unregister_client_groups(struct ib_device *ibdev, u32 port_num, 388 const struct attribute_group **groups); 389 390 int ib_device_set_netns_put(struct sk_buff *skb, 391 struct ib_device *dev, u32 ns_fd); 392 393 int rdma_nl_net_init(struct rdma_dev_net *rnet); 394 void rdma_nl_net_exit(struct rdma_dev_net *rnet); 395 396 struct rdma_umap_priv { 397 struct vm_area_struct *vma; 398 struct list_head list; 399 struct rdma_user_mmap_entry *entry; 400 }; 401 402 void rdma_umap_priv_init(struct rdma_umap_priv *priv, 403 struct vm_area_struct *vma, 404 struct rdma_user_mmap_entry *entry); 405 406 void ib_cq_pool_cleanup(struct ib_device *dev); 407 408 #endif /* _CORE_PRIV_H */ 409