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