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