2 * Copyright (c) 2004 Topspin Communications. All rights reserved.
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:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
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.
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
36 #include <linux/list.h>
37 #include <linux/spinlock.h>
38 #include <linux/cgroup_rdma.h>
40 #include <rdma/ib_verbs.h>
41 #include <rdma/opa_addr.h>
42 #include <rdma/ib_mad.h>
43 #include <rdma/restrack.h>
46 /* Total number of ports combined across all struct ib_devices's */
47 #define RDMA_MAX_PORTS 8192
49 struct pkey_index_qp_list {
50 struct list_head pkey_index_list;
52 /* Lock to hold while iterating the qp_list. */
53 spinlock_t qp_list_lock;
54 struct list_head qp_list;
57 #if IS_ENABLED(CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS)
58 int cma_configfs_init(void);
59 void cma_configfs_exit(void);
61 static inline int cma_configfs_init(void)
66 static inline void cma_configfs_exit(void)
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,
76 int cma_get_default_gid_type(struct cma_device *cma_dev,
78 int cma_set_default_gid_type(struct cma_device *cma_dev,
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,
84 struct ib_device *cma_get_ib_dev(struct cma_device *cma_dev);
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 int ib_device_rename(struct ib_device *ibdev, const char *name);
92 typedef void (*roce_netdev_callback)(struct ib_device *device, u8 port,
93 struct net_device *idev, void *cookie);
95 typedef bool (*roce_netdev_filter)(struct ib_device *device, u8 port,
96 struct net_device *idev, void *cookie);
98 void ib_enum_roce_netdev(struct ib_device *ib_dev,
99 roce_netdev_filter filter,
101 roce_netdev_callback cb,
103 void ib_enum_all_roce_netdevs(roce_netdev_filter filter,
105 roce_netdev_callback cb,
108 typedef int (*nldev_callback)(struct ib_device *device,
110 struct netlink_callback *cb,
113 int ib_enum_all_devs(nldev_callback nldev_cb, struct sk_buff *skb,
114 struct netlink_callback *cb);
116 enum ib_cache_gid_default_mode {
117 IB_CACHE_GID_DEFAULT_MODE_SET,
118 IB_CACHE_GID_DEFAULT_MODE_DELETE
121 int ib_cache_gid_parse_type_str(const char *buf);
123 const char *ib_cache_gid_type_str(enum ib_gid_type gid_type);
125 void ib_cache_gid_set_default_gid(struct ib_device *ib_dev, u8 port,
126 struct net_device *ndev,
127 unsigned long gid_type_mask,
128 enum ib_cache_gid_default_mode mode);
130 int ib_cache_gid_add(struct ib_device *ib_dev, u8 port,
131 union ib_gid *gid, struct ib_gid_attr *attr);
133 int ib_cache_gid_del(struct ib_device *ib_dev, u8 port,
134 union ib_gid *gid, struct ib_gid_attr *attr);
136 int ib_cache_gid_del_all_netdev_gids(struct ib_device *ib_dev, u8 port,
137 struct net_device *ndev);
139 int roce_gid_mgmt_init(void);
140 void roce_gid_mgmt_cleanup(void);
142 unsigned long roce_gid_type_mask_support(struct ib_device *ib_dev, u8 port);
144 int ib_cache_setup_one(struct ib_device *device);
145 void ib_cache_cleanup_one(struct ib_device *device);
146 void ib_cache_release_one(struct ib_device *device);
148 #ifdef CONFIG_CGROUP_RDMA
149 int ib_device_register_rdmacg(struct ib_device *device);
150 void ib_device_unregister_rdmacg(struct ib_device *device);
152 int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj,
153 struct ib_device *device,
154 enum rdmacg_resource_type resource_index);
156 void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj,
157 struct ib_device *device,
158 enum rdmacg_resource_type resource_index);
160 static inline int ib_device_register_rdmacg(struct ib_device *device)
163 static inline void ib_device_unregister_rdmacg(struct ib_device *device)
166 static inline int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj,
167 struct ib_device *device,
168 enum rdmacg_resource_type resource_index)
171 static inline void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj,
172 struct ib_device *device,
173 enum rdmacg_resource_type resource_index)
177 static inline bool rdma_is_upper_dev_rcu(struct net_device *dev,
178 struct net_device *upper)
180 return netdev_has_upper_dev_all_rcu(dev, upper);
184 void addr_cleanup(void);
186 int ib_mad_init(void);
187 void ib_mad_cleanup(void);
189 int ib_sa_init(void);
190 void ib_sa_cleanup(void);
192 int rdma_nl_init(void);
193 void rdma_nl_exit(void);
195 int ib_nl_handle_resolve_resp(struct sk_buff *skb,
196 struct nlmsghdr *nlh,
197 struct netlink_ext_ack *extack);
198 int ib_nl_handle_set_timeout(struct sk_buff *skb,
199 struct nlmsghdr *nlh,
200 struct netlink_ext_ack *extack);
201 int ib_nl_handle_ip_res_resp(struct sk_buff *skb,
202 struct nlmsghdr *nlh,
203 struct netlink_ext_ack *extack);
205 int ib_get_cached_subnet_prefix(struct ib_device *device,
209 #ifdef CONFIG_SECURITY_INFINIBAND
210 void ib_security_destroy_port_pkey_list(struct ib_device *device);
212 void ib_security_cache_change(struct ib_device *device,
216 int ib_security_modify_qp(struct ib_qp *qp,
217 struct ib_qp_attr *qp_attr,
219 struct ib_udata *udata);
221 int ib_create_qp_security(struct ib_qp *qp, struct ib_device *dev);
222 void ib_destroy_qp_security_begin(struct ib_qp_security *sec);
223 void ib_destroy_qp_security_abort(struct ib_qp_security *sec);
224 void ib_destroy_qp_security_end(struct ib_qp_security *sec);
225 int ib_open_shared_qp_security(struct ib_qp *qp, struct ib_device *dev);
226 void ib_close_shared_qp_security(struct ib_qp_security *sec);
227 int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
228 enum ib_qp_type qp_type);
229 void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent);
230 int ib_mad_enforce_security(struct ib_mad_agent_private *map, u16 pkey_index);
232 static inline void ib_security_destroy_port_pkey_list(struct ib_device *device)
236 static inline void ib_security_cache_change(struct ib_device *device,
242 static inline int ib_security_modify_qp(struct ib_qp *qp,
243 struct ib_qp_attr *qp_attr,
245 struct ib_udata *udata)
247 return qp->device->modify_qp(qp->real_qp,
253 static inline int ib_create_qp_security(struct ib_qp *qp,
254 struct ib_device *dev)
259 static inline void ib_destroy_qp_security_begin(struct ib_qp_security *sec)
263 static inline void ib_destroy_qp_security_abort(struct ib_qp_security *sec)
267 static inline void ib_destroy_qp_security_end(struct ib_qp_security *sec)
271 static inline int ib_open_shared_qp_security(struct ib_qp *qp,
272 struct ib_device *dev)
277 static inline void ib_close_shared_qp_security(struct ib_qp_security *sec)
281 static inline int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
282 enum ib_qp_type qp_type)
287 static inline void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent)
291 static inline int ib_mad_enforce_security(struct ib_mad_agent_private *map,
298 struct ib_device *ib_device_get_by_index(u32 ifindex);
299 /* RDMA device netlink */
300 void nldev_init(void);
301 void nldev_exit(void);
303 static inline struct ib_qp *_ib_create_qp(struct ib_device *dev,
305 struct ib_qp_init_attr *attr,
306 struct ib_udata *udata,
307 struct ib_uobject *uobj)
312 return ERR_PTR(-EOPNOTSUPP);
314 qp = dev->create_qp(pd, attr, udata);
322 * We don't track XRC QPs for now, because they don't have PD
323 * and more importantly they are created internaly by driver,
324 * see mlx5 create_dev_resources() as an example.
326 if (attr->qp_type < IB_QPT_XRC_INI) {
327 qp->res.type = RDMA_RESTRACK_QP;
328 rdma_restrack_add(&qp->res);
330 qp->res.valid = false;
335 struct rdma_dev_addr;
336 int rdma_resolve_ip_route(struct sockaddr *src_addr,
337 const struct sockaddr *dst_addr,
338 struct rdma_dev_addr *addr);
340 int rdma_addr_find_l2_eth_by_grh(const union ib_gid *sgid,
341 const union ib_gid *dgid,
342 u8 *dmac, const struct ib_gid_attr *sgid_attr,
344 void rdma_copy_src_l2_addr(struct rdma_dev_addr *dev_addr,
345 const struct net_device *dev);
348 int roce_resolve_route_from_path(struct sa_path_rec *rec,
349 const struct ib_gid_attr *attr);
351 struct net_device *rdma_read_gid_attr_ndev_rcu(const struct ib_gid_attr *attr);
352 #endif /* _CORE_PRIV_H */