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 1024 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 91 typedef void (*roce_netdev_callback)(struct ib_device *device, u8 port, 92 struct net_device *idev, void *cookie); 93 94 typedef int (*roce_netdev_filter)(struct ib_device *device, u8 port, 95 struct net_device *idev, void *cookie); 96 97 void ib_enum_roce_netdev(struct ib_device *ib_dev, 98 roce_netdev_filter filter, 99 void *filter_cookie, 100 roce_netdev_callback cb, 101 void *cookie); 102 void ib_enum_all_roce_netdevs(roce_netdev_filter filter, 103 void *filter_cookie, 104 roce_netdev_callback cb, 105 void *cookie); 106 107 typedef int (*nldev_callback)(struct ib_device *device, 108 struct sk_buff *skb, 109 struct netlink_callback *cb, 110 unsigned int idx); 111 112 int ib_enum_all_devs(nldev_callback nldev_cb, struct sk_buff *skb, 113 struct netlink_callback *cb); 114 115 enum ib_cache_gid_default_mode { 116 IB_CACHE_GID_DEFAULT_MODE_SET, 117 IB_CACHE_GID_DEFAULT_MODE_DELETE 118 }; 119 120 int ib_cache_gid_parse_type_str(const char *buf); 121 122 const char *ib_cache_gid_type_str(enum ib_gid_type gid_type); 123 124 void ib_cache_gid_set_default_gid(struct ib_device *ib_dev, u8 port, 125 struct net_device *ndev, 126 unsigned long gid_type_mask, 127 enum ib_cache_gid_default_mode mode); 128 129 int ib_cache_gid_add(struct ib_device *ib_dev, u8 port, 130 union ib_gid *gid, struct ib_gid_attr *attr); 131 132 int ib_cache_gid_del(struct ib_device *ib_dev, u8 port, 133 union ib_gid *gid, struct ib_gid_attr *attr); 134 135 int ib_cache_gid_del_all_netdev_gids(struct ib_device *ib_dev, u8 port, 136 struct net_device *ndev); 137 138 int roce_gid_mgmt_init(void); 139 void roce_gid_mgmt_cleanup(void); 140 141 unsigned long roce_gid_type_mask_support(struct ib_device *ib_dev, u8 port); 142 143 int ib_cache_setup_one(struct ib_device *device); 144 void ib_cache_cleanup_one(struct ib_device *device); 145 void ib_cache_release_one(struct ib_device *device); 146 147 #ifdef CONFIG_CGROUP_RDMA 148 int ib_device_register_rdmacg(struct ib_device *device); 149 void ib_device_unregister_rdmacg(struct ib_device *device); 150 151 int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj, 152 struct ib_device *device, 153 enum rdmacg_resource_type resource_index); 154 155 void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj, 156 struct ib_device *device, 157 enum rdmacg_resource_type resource_index); 158 #else 159 static inline int ib_device_register_rdmacg(struct ib_device *device) 160 { return 0; } 161 162 static inline void ib_device_unregister_rdmacg(struct ib_device *device) 163 { } 164 165 static inline int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj, 166 struct ib_device *device, 167 enum rdmacg_resource_type resource_index) 168 { return 0; } 169 170 static inline void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj, 171 struct ib_device *device, 172 enum rdmacg_resource_type resource_index) 173 { } 174 #endif 175 176 static inline bool rdma_is_upper_dev_rcu(struct net_device *dev, 177 struct net_device *upper) 178 { 179 return netdev_has_upper_dev_all_rcu(dev, upper); 180 } 181 182 int addr_init(void); 183 void addr_cleanup(void); 184 185 int ib_mad_init(void); 186 void ib_mad_cleanup(void); 187 188 int ib_sa_init(void); 189 void ib_sa_cleanup(void); 190 191 int rdma_nl_init(void); 192 void rdma_nl_exit(void); 193 194 int ib_nl_handle_resolve_resp(struct sk_buff *skb, 195 struct nlmsghdr *nlh, 196 struct netlink_ext_ack *extack); 197 int ib_nl_handle_set_timeout(struct sk_buff *skb, 198 struct nlmsghdr *nlh, 199 struct netlink_ext_ack *extack); 200 int ib_nl_handle_ip_res_resp(struct sk_buff *skb, 201 struct nlmsghdr *nlh, 202 struct netlink_ext_ack *extack); 203 204 int ib_get_cached_subnet_prefix(struct ib_device *device, 205 u8 port_num, 206 u64 *sn_pfx); 207 208 #ifdef CONFIG_SECURITY_INFINIBAND 209 void ib_security_destroy_port_pkey_list(struct ib_device *device); 210 211 void ib_security_cache_change(struct ib_device *device, 212 u8 port_num, 213 u64 subnet_prefix); 214 215 int ib_security_modify_qp(struct ib_qp *qp, 216 struct ib_qp_attr *qp_attr, 217 int qp_attr_mask, 218 struct ib_udata *udata); 219 220 int ib_create_qp_security(struct ib_qp *qp, struct ib_device *dev); 221 void ib_destroy_qp_security_begin(struct ib_qp_security *sec); 222 void ib_destroy_qp_security_abort(struct ib_qp_security *sec); 223 void ib_destroy_qp_security_end(struct ib_qp_security *sec); 224 int ib_open_shared_qp_security(struct ib_qp *qp, struct ib_device *dev); 225 void ib_close_shared_qp_security(struct ib_qp_security *sec); 226 int ib_mad_agent_security_setup(struct ib_mad_agent *agent, 227 enum ib_qp_type qp_type); 228 void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent); 229 int ib_mad_enforce_security(struct ib_mad_agent_private *map, u16 pkey_index); 230 #else 231 static inline void ib_security_destroy_port_pkey_list(struct ib_device *device) 232 { 233 } 234 235 static inline void ib_security_cache_change(struct ib_device *device, 236 u8 port_num, 237 u64 subnet_prefix) 238 { 239 } 240 241 static inline int ib_security_modify_qp(struct ib_qp *qp, 242 struct ib_qp_attr *qp_attr, 243 int qp_attr_mask, 244 struct ib_udata *udata) 245 { 246 return qp->device->modify_qp(qp->real_qp, 247 qp_attr, 248 qp_attr_mask, 249 udata); 250 } 251 252 static inline int ib_create_qp_security(struct ib_qp *qp, 253 struct ib_device *dev) 254 { 255 return 0; 256 } 257 258 static inline void ib_destroy_qp_security_begin(struct ib_qp_security *sec) 259 { 260 } 261 262 static inline void ib_destroy_qp_security_abort(struct ib_qp_security *sec) 263 { 264 } 265 266 static inline void ib_destroy_qp_security_end(struct ib_qp_security *sec) 267 { 268 } 269 270 static inline int ib_open_shared_qp_security(struct ib_qp *qp, 271 struct ib_device *dev) 272 { 273 return 0; 274 } 275 276 static inline void ib_close_shared_qp_security(struct ib_qp_security *sec) 277 { 278 } 279 280 static inline int ib_mad_agent_security_setup(struct ib_mad_agent *agent, 281 enum ib_qp_type qp_type) 282 { 283 return 0; 284 } 285 286 static inline void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent) 287 { 288 } 289 290 static inline int ib_mad_enforce_security(struct ib_mad_agent_private *map, 291 u16 pkey_index) 292 { 293 return 0; 294 } 295 #endif 296 297 struct ib_device *ib_device_get_by_index(u32 ifindex); 298 /* RDMA device netlink */ 299 void nldev_init(void); 300 void nldev_exit(void); 301 302 static inline struct ib_qp *_ib_create_qp(struct ib_device *dev, 303 struct ib_pd *pd, 304 struct ib_qp_init_attr *attr, 305 struct ib_udata *udata, 306 struct ib_uobject *uobj) 307 { 308 struct ib_qp *qp; 309 310 if (!dev->create_qp) 311 return ERR_PTR(-EOPNOTSUPP); 312 313 qp = dev->create_qp(pd, attr, udata); 314 if (IS_ERR(qp)) 315 return qp; 316 317 qp->device = dev; 318 qp->pd = pd; 319 qp->uobject = uobj; 320 /* 321 * We don't track XRC QPs for now, because they don't have PD 322 * and more importantly they are created internaly by driver, 323 * see mlx5 create_dev_resources() as an example. 324 */ 325 if (attr->qp_type < IB_QPT_XRC_INI) { 326 qp->res.type = RDMA_RESTRACK_QP; 327 rdma_restrack_add(&qp->res); 328 } else 329 qp->res.valid = false; 330 331 return qp; 332 } 333 334 struct rdma_dev_addr; 335 int rdma_resolve_ip_route(struct sockaddr *src_addr, 336 const struct sockaddr *dst_addr, 337 struct rdma_dev_addr *addr); 338 339 int rdma_addr_find_l2_eth_by_grh(const union ib_gid *sgid, 340 const union ib_gid *dgid, 341 u8 *dmac, const struct net_device *ndev, 342 int *hoplimit); 343 344 #endif /* _CORE_PRIV_H */ 345