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/ib_mad.h> 42 #include "mad_priv.h" 43 44 struct pkey_index_qp_list { 45 struct list_head pkey_index_list; 46 u16 pkey_index; 47 /* Lock to hold while iterating the qp_list. */ 48 spinlock_t qp_list_lock; 49 struct list_head qp_list; 50 }; 51 52 #if IS_ENABLED(CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS) 53 int cma_configfs_init(void); 54 void cma_configfs_exit(void); 55 #else 56 static inline int cma_configfs_init(void) 57 { 58 return 0; 59 } 60 61 static inline void cma_configfs_exit(void) 62 { 63 } 64 #endif 65 struct cma_device; 66 void cma_ref_dev(struct cma_device *cma_dev); 67 void cma_deref_dev(struct cma_device *cma_dev); 68 typedef bool (*cma_device_filter)(struct ib_device *, void *); 69 struct cma_device *cma_enum_devices_by_ibdev(cma_device_filter filter, 70 void *cookie); 71 int cma_get_default_gid_type(struct cma_device *cma_dev, 72 unsigned int port); 73 int cma_set_default_gid_type(struct cma_device *cma_dev, 74 unsigned int port, 75 enum ib_gid_type default_gid_type); 76 int cma_get_default_roce_tos(struct cma_device *cma_dev, unsigned int port); 77 int cma_set_default_roce_tos(struct cma_device *a_dev, unsigned int port, 78 u8 default_roce_tos); 79 struct ib_device *cma_get_ib_dev(struct cma_device *cma_dev); 80 81 int ib_device_register_sysfs(struct ib_device *device, 82 int (*port_callback)(struct ib_device *, 83 u8, struct kobject *)); 84 void ib_device_unregister_sysfs(struct ib_device *device); 85 86 void ib_cache_setup(void); 87 void ib_cache_cleanup(void); 88 89 typedef void (*roce_netdev_callback)(struct ib_device *device, u8 port, 90 struct net_device *idev, void *cookie); 91 92 typedef int (*roce_netdev_filter)(struct ib_device *device, u8 port, 93 struct net_device *idev, void *cookie); 94 95 void ib_enum_roce_netdev(struct ib_device *ib_dev, 96 roce_netdev_filter filter, 97 void *filter_cookie, 98 roce_netdev_callback cb, 99 void *cookie); 100 void ib_enum_all_roce_netdevs(roce_netdev_filter filter, 101 void *filter_cookie, 102 roce_netdev_callback cb, 103 void *cookie); 104 105 enum ib_cache_gid_default_mode { 106 IB_CACHE_GID_DEFAULT_MODE_SET, 107 IB_CACHE_GID_DEFAULT_MODE_DELETE 108 }; 109 110 int ib_cache_gid_parse_type_str(const char *buf); 111 112 const char *ib_cache_gid_type_str(enum ib_gid_type gid_type); 113 114 void ib_cache_gid_set_default_gid(struct ib_device *ib_dev, u8 port, 115 struct net_device *ndev, 116 unsigned long gid_type_mask, 117 enum ib_cache_gid_default_mode mode); 118 119 int ib_cache_gid_add(struct ib_device *ib_dev, u8 port, 120 union ib_gid *gid, struct ib_gid_attr *attr); 121 122 int ib_cache_gid_del(struct ib_device *ib_dev, u8 port, 123 union ib_gid *gid, struct ib_gid_attr *attr); 124 125 int ib_cache_gid_del_all_netdev_gids(struct ib_device *ib_dev, u8 port, 126 struct net_device *ndev); 127 128 int roce_gid_mgmt_init(void); 129 void roce_gid_mgmt_cleanup(void); 130 131 int roce_rescan_device(struct ib_device *ib_dev); 132 unsigned long roce_gid_type_mask_support(struct ib_device *ib_dev, u8 port); 133 134 int ib_cache_setup_one(struct ib_device *device); 135 void ib_cache_cleanup_one(struct ib_device *device); 136 void ib_cache_release_one(struct ib_device *device); 137 138 #ifdef CONFIG_CGROUP_RDMA 139 int ib_device_register_rdmacg(struct ib_device *device); 140 void ib_device_unregister_rdmacg(struct ib_device *device); 141 142 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 void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj, 147 struct ib_device *device, 148 enum rdmacg_resource_type resource_index); 149 #else 150 static inline int ib_device_register_rdmacg(struct ib_device *device) 151 { return 0; } 152 153 static inline void ib_device_unregister_rdmacg(struct ib_device *device) 154 { } 155 156 static inline int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj, 157 struct ib_device *device, 158 enum rdmacg_resource_type resource_index) 159 { return 0; } 160 161 static inline void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj, 162 struct ib_device *device, 163 enum rdmacg_resource_type resource_index) 164 { } 165 #endif 166 167 static inline bool rdma_is_upper_dev_rcu(struct net_device *dev, 168 struct net_device *upper) 169 { 170 return netdev_has_upper_dev_all_rcu(dev, upper); 171 } 172 173 int addr_init(void); 174 void addr_cleanup(void); 175 176 int ib_mad_init(void); 177 void ib_mad_cleanup(void); 178 179 int ib_sa_init(void); 180 void ib_sa_cleanup(void); 181 182 int ibnl_init(void); 183 void ibnl_cleanup(void); 184 185 /** 186 * Check if there are any listeners to the netlink group 187 * @group: the netlink group ID 188 * Returns 0 on success or a negative for no listeners. 189 */ 190 int ibnl_chk_listeners(unsigned int group); 191 192 int ib_nl_handle_resolve_resp(struct sk_buff *skb, 193 struct netlink_callback *cb); 194 int ib_nl_handle_set_timeout(struct sk_buff *skb, 195 struct netlink_callback *cb); 196 int ib_nl_handle_ip_res_resp(struct sk_buff *skb, 197 struct netlink_callback *cb); 198 199 int ib_get_cached_subnet_prefix(struct ib_device *device, 200 u8 port_num, 201 u64 *sn_pfx); 202 203 #ifdef CONFIG_SECURITY_INFINIBAND 204 int ib_security_pkey_access(struct ib_device *dev, 205 u8 port_num, 206 u16 pkey_index, 207 void *sec); 208 209 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 int ib_security_pkey_access(struct ib_device *dev, 232 u8 port_num, 233 u16 pkey_index, 234 void *sec) 235 { 236 return 0; 237 } 238 239 static inline void ib_security_destroy_port_pkey_list(struct ib_device *device) 240 { 241 } 242 243 static inline void ib_security_cache_change(struct ib_device *device, 244 u8 port_num, 245 u64 subnet_prefix) 246 { 247 } 248 249 static inline int ib_security_modify_qp(struct ib_qp *qp, 250 struct ib_qp_attr *qp_attr, 251 int qp_attr_mask, 252 struct ib_udata *udata) 253 { 254 return qp->device->modify_qp(qp->real_qp, 255 qp_attr, 256 qp_attr_mask, 257 udata); 258 } 259 260 static inline int ib_create_qp_security(struct ib_qp *qp, 261 struct ib_device *dev) 262 { 263 return 0; 264 } 265 266 static inline void ib_destroy_qp_security_begin(struct ib_qp_security *sec) 267 { 268 } 269 270 static inline void ib_destroy_qp_security_abort(struct ib_qp_security *sec) 271 { 272 } 273 274 static inline void ib_destroy_qp_security_end(struct ib_qp_security *sec) 275 { 276 } 277 278 static inline int ib_open_shared_qp_security(struct ib_qp *qp, 279 struct ib_device *dev) 280 { 281 return 0; 282 } 283 284 static inline void ib_close_shared_qp_security(struct ib_qp_security *sec) 285 { 286 } 287 288 static inline int ib_mad_agent_security_setup(struct ib_mad_agent *agent, 289 enum ib_qp_type qp_type) 290 { 291 return 0; 292 } 293 294 static inline void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent) 295 { 296 } 297 298 static inline int ib_mad_enforce_security(struct ib_mad_agent_private *map, 299 u16 pkey_index) 300 { 301 return 0; 302 } 303 #endif 304 #endif /* _CORE_PRIV_H */ 305