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