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 <rdma/restrack.h> 44 #include "mad_priv.h" 45 46 /* Total number of ports combined across all struct ib_devices's */ 47 #define RDMA_MAX_PORTS 8192 48 49 struct pkey_index_qp_list { 50 struct list_head pkey_index_list; 51 u16 pkey_index; 52 /* Lock to hold while iterating the qp_list. */ 53 spinlock_t qp_list_lock; 54 struct list_head qp_list; 55 }; 56 57 #if IS_ENABLED(CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS) 58 int cma_configfs_init(void); 59 void cma_configfs_exit(void); 60 #else 61 static inline int cma_configfs_init(void) 62 { 63 return 0; 64 } 65 66 static inline void cma_configfs_exit(void) 67 { 68 } 69 #endif 70 struct cma_device; 71 void cma_ref_dev(struct cma_device *cma_dev); 72 void cma_deref_dev(struct cma_device *cma_dev); 73 typedef bool (*cma_device_filter)(struct ib_device *, void *); 74 struct cma_device *cma_enum_devices_by_ibdev(cma_device_filter filter, 75 void *cookie); 76 int cma_get_default_gid_type(struct cma_device *cma_dev, 77 unsigned int port); 78 int cma_set_default_gid_type(struct cma_device *cma_dev, 79 unsigned int port, 80 enum ib_gid_type default_gid_type); 81 int cma_get_default_roce_tos(struct cma_device *cma_dev, unsigned int port); 82 int cma_set_default_roce_tos(struct cma_device *a_dev, unsigned int port, 83 u8 default_roce_tos); 84 struct ib_device *cma_get_ib_dev(struct cma_device *cma_dev); 85 86 int ib_device_register_sysfs(struct ib_device *device, 87 int (*port_callback)(struct ib_device *, 88 u8, struct kobject *)); 89 void ib_device_unregister_sysfs(struct ib_device *device); 90 int ib_device_rename(struct ib_device *ibdev, const char *name); 91 92 typedef void (*roce_netdev_callback)(struct ib_device *device, u8 port, 93 struct net_device *idev, void *cookie); 94 95 typedef bool (*roce_netdev_filter)(struct ib_device *device, u8 port, 96 struct net_device *idev, void *cookie); 97 98 void ib_enum_roce_netdev(struct ib_device *ib_dev, 99 roce_netdev_filter filter, 100 void *filter_cookie, 101 roce_netdev_callback cb, 102 void *cookie); 103 void ib_enum_all_roce_netdevs(roce_netdev_filter filter, 104 void *filter_cookie, 105 roce_netdev_callback cb, 106 void *cookie); 107 108 typedef int (*nldev_callback)(struct ib_device *device, 109 struct sk_buff *skb, 110 struct netlink_callback *cb, 111 unsigned int idx); 112 113 int ib_enum_all_devs(nldev_callback nldev_cb, struct sk_buff *skb, 114 struct netlink_callback *cb); 115 116 enum ib_cache_gid_default_mode { 117 IB_CACHE_GID_DEFAULT_MODE_SET, 118 IB_CACHE_GID_DEFAULT_MODE_DELETE 119 }; 120 121 int ib_cache_gid_parse_type_str(const char *buf); 122 123 const char *ib_cache_gid_type_str(enum ib_gid_type gid_type); 124 125 void ib_cache_gid_set_default_gid(struct ib_device *ib_dev, u8 port, 126 struct net_device *ndev, 127 unsigned long gid_type_mask, 128 enum ib_cache_gid_default_mode mode); 129 130 int ib_cache_gid_add(struct ib_device *ib_dev, u8 port, 131 union ib_gid *gid, struct ib_gid_attr *attr); 132 133 int ib_cache_gid_del(struct ib_device *ib_dev, u8 port, 134 union ib_gid *gid, struct ib_gid_attr *attr); 135 136 int ib_cache_gid_del_all_netdev_gids(struct ib_device *ib_dev, u8 port, 137 struct net_device *ndev); 138 139 int roce_gid_mgmt_init(void); 140 void roce_gid_mgmt_cleanup(void); 141 142 unsigned long roce_gid_type_mask_support(struct ib_device *ib_dev, u8 port); 143 144 int ib_cache_setup_one(struct ib_device *device); 145 void ib_cache_cleanup_one(struct ib_device *device); 146 void ib_cache_release_one(struct ib_device *device); 147 148 #ifdef CONFIG_CGROUP_RDMA 149 int ib_device_register_rdmacg(struct ib_device *device); 150 void ib_device_unregister_rdmacg(struct ib_device *device); 151 152 int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj, 153 struct ib_device *device, 154 enum rdmacg_resource_type resource_index); 155 156 void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj, 157 struct ib_device *device, 158 enum rdmacg_resource_type resource_index); 159 #else 160 static inline int ib_device_register_rdmacg(struct ib_device *device) 161 { return 0; } 162 163 static inline void ib_device_unregister_rdmacg(struct ib_device *device) 164 { } 165 166 static inline int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj, 167 struct ib_device *device, 168 enum rdmacg_resource_type resource_index) 169 { return 0; } 170 171 static inline void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj, 172 struct ib_device *device, 173 enum rdmacg_resource_type resource_index) 174 { } 175 #endif 176 177 static inline bool rdma_is_upper_dev_rcu(struct net_device *dev, 178 struct net_device *upper) 179 { 180 return netdev_has_upper_dev_all_rcu(dev, upper); 181 } 182 183 int addr_init(void); 184 void addr_cleanup(void); 185 186 int ib_mad_init(void); 187 void ib_mad_cleanup(void); 188 189 int ib_sa_init(void); 190 void ib_sa_cleanup(void); 191 192 int rdma_nl_init(void); 193 void rdma_nl_exit(void); 194 195 int ib_nl_handle_resolve_resp(struct sk_buff *skb, 196 struct nlmsghdr *nlh, 197 struct netlink_ext_ack *extack); 198 int ib_nl_handle_set_timeout(struct sk_buff *skb, 199 struct nlmsghdr *nlh, 200 struct netlink_ext_ack *extack); 201 int ib_nl_handle_ip_res_resp(struct sk_buff *skb, 202 struct nlmsghdr *nlh, 203 struct netlink_ext_ack *extack); 204 205 int ib_get_cached_subnet_prefix(struct ib_device *device, 206 u8 port_num, 207 u64 *sn_pfx); 208 209 #ifdef CONFIG_SECURITY_INFINIBAND 210 void ib_security_destroy_port_pkey_list(struct ib_device *device); 211 212 void ib_security_cache_change(struct ib_device *device, 213 u8 port_num, 214 u64 subnet_prefix); 215 216 int ib_security_modify_qp(struct ib_qp *qp, 217 struct ib_qp_attr *qp_attr, 218 int qp_attr_mask, 219 struct ib_udata *udata); 220 221 int ib_create_qp_security(struct ib_qp *qp, struct ib_device *dev); 222 void ib_destroy_qp_security_begin(struct ib_qp_security *sec); 223 void ib_destroy_qp_security_abort(struct ib_qp_security *sec); 224 void ib_destroy_qp_security_end(struct ib_qp_security *sec); 225 int ib_open_shared_qp_security(struct ib_qp *qp, struct ib_device *dev); 226 void ib_close_shared_qp_security(struct ib_qp_security *sec); 227 int ib_mad_agent_security_setup(struct ib_mad_agent *agent, 228 enum ib_qp_type qp_type); 229 void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent); 230 int ib_mad_enforce_security(struct ib_mad_agent_private *map, u16 pkey_index); 231 #else 232 static inline void ib_security_destroy_port_pkey_list(struct ib_device *device) 233 { 234 } 235 236 static inline void ib_security_cache_change(struct ib_device *device, 237 u8 port_num, 238 u64 subnet_prefix) 239 { 240 } 241 242 static inline int ib_security_modify_qp(struct ib_qp *qp, 243 struct ib_qp_attr *qp_attr, 244 int qp_attr_mask, 245 struct ib_udata *udata) 246 { 247 return qp->device->modify_qp(qp->real_qp, 248 qp_attr, 249 qp_attr_mask, 250 udata); 251 } 252 253 static inline int ib_create_qp_security(struct ib_qp *qp, 254 struct ib_device *dev) 255 { 256 return 0; 257 } 258 259 static inline void ib_destroy_qp_security_begin(struct ib_qp_security *sec) 260 { 261 } 262 263 static inline void ib_destroy_qp_security_abort(struct ib_qp_security *sec) 264 { 265 } 266 267 static inline void ib_destroy_qp_security_end(struct ib_qp_security *sec) 268 { 269 } 270 271 static inline int ib_open_shared_qp_security(struct ib_qp *qp, 272 struct ib_device *dev) 273 { 274 return 0; 275 } 276 277 static inline void ib_close_shared_qp_security(struct ib_qp_security *sec) 278 { 279 } 280 281 static inline int ib_mad_agent_security_setup(struct ib_mad_agent *agent, 282 enum ib_qp_type qp_type) 283 { 284 return 0; 285 } 286 287 static inline void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent) 288 { 289 } 290 291 static inline int ib_mad_enforce_security(struct ib_mad_agent_private *map, 292 u16 pkey_index) 293 { 294 return 0; 295 } 296 #endif 297 298 struct ib_device *ib_device_get_by_index(u32 ifindex); 299 /* RDMA device netlink */ 300 void nldev_init(void); 301 void nldev_exit(void); 302 303 static inline struct ib_qp *_ib_create_qp(struct ib_device *dev, 304 struct ib_pd *pd, 305 struct ib_qp_init_attr *attr, 306 struct ib_udata *udata, 307 struct ib_uobject *uobj) 308 { 309 struct ib_qp *qp; 310 311 if (!dev->create_qp) 312 return ERR_PTR(-EOPNOTSUPP); 313 314 qp = dev->create_qp(pd, attr, udata); 315 if (IS_ERR(qp)) 316 return qp; 317 318 qp->device = dev; 319 qp->pd = pd; 320 qp->uobject = uobj; 321 /* 322 * We don't track XRC QPs for now, because they don't have PD 323 * and more importantly they are created internaly by driver, 324 * see mlx5 create_dev_resources() as an example. 325 */ 326 if (attr->qp_type < IB_QPT_XRC_INI) { 327 qp->res.type = RDMA_RESTRACK_QP; 328 rdma_restrack_add(&qp->res); 329 } else 330 qp->res.valid = false; 331 332 return qp; 333 } 334 335 struct rdma_dev_addr; 336 int rdma_resolve_ip_route(struct sockaddr *src_addr, 337 const struct sockaddr *dst_addr, 338 struct rdma_dev_addr *addr); 339 340 int rdma_addr_find_l2_eth_by_grh(const union ib_gid *sgid, 341 const union ib_gid *dgid, 342 u8 *dmac, const struct ib_gid_attr *sgid_attr, 343 int *hoplimit); 344 void rdma_copy_src_l2_addr(struct rdma_dev_addr *dev_addr, 345 const struct net_device *dev); 346 347 struct sa_path_rec; 348 int roce_resolve_route_from_path(struct sa_path_rec *rec, 349 const struct ib_gid_attr *attr); 350 351 struct net_device *rdma_read_gid_attr_ndev_rcu(const struct ib_gid_attr *attr); 352 #endif /* _CORE_PRIV_H */ 353