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 extern const struct attribute_group ib_dev_attr_group;
58 extern bool ib_devices_shared_netns;
60 int ib_device_register_sysfs(struct ib_device *device);
61 void ib_device_unregister_sysfs(struct ib_device *device);
62 int ib_device_rename(struct ib_device *ibdev, const char *name);
63 int ib_device_set_dim(struct ib_device *ibdev, u8 use_dim);
65 typedef void (*roce_netdev_callback)(struct ib_device *device, u8 port,
66 struct net_device *idev, void *cookie);
68 typedef bool (*roce_netdev_filter)(struct ib_device *device, u8 port,
69 struct net_device *idev, void *cookie);
71 struct net_device *ib_device_get_netdev(struct ib_device *ib_dev,
74 void ib_enum_roce_netdev(struct ib_device *ib_dev,
75 roce_netdev_filter filter,
77 roce_netdev_callback cb,
79 void ib_enum_all_roce_netdevs(roce_netdev_filter filter,
81 roce_netdev_callback cb,
84 typedef int (*nldev_callback)(struct ib_device *device,
86 struct netlink_callback *cb,
89 int ib_enum_all_devs(nldev_callback nldev_cb, struct sk_buff *skb,
90 struct netlink_callback *cb);
92 struct ib_client_nl_info {
93 struct sk_buff *nl_msg;
98 int ib_get_client_nl_info(struct ib_device *ibdev, const char *client_name,
99 struct ib_client_nl_info *res);
101 enum ib_cache_gid_default_mode {
102 IB_CACHE_GID_DEFAULT_MODE_SET,
103 IB_CACHE_GID_DEFAULT_MODE_DELETE
106 int ib_cache_gid_parse_type_str(const char *buf);
108 const char *ib_cache_gid_type_str(enum ib_gid_type gid_type);
110 void ib_cache_gid_set_default_gid(struct ib_device *ib_dev, u8 port,
111 struct net_device *ndev,
112 unsigned long gid_type_mask,
113 enum ib_cache_gid_default_mode mode);
115 int ib_cache_gid_add(struct ib_device *ib_dev, u8 port,
116 union ib_gid *gid, struct ib_gid_attr *attr);
118 int ib_cache_gid_del(struct ib_device *ib_dev, u8 port,
119 union ib_gid *gid, struct ib_gid_attr *attr);
121 int ib_cache_gid_del_all_netdev_gids(struct ib_device *ib_dev, u8 port,
122 struct net_device *ndev);
124 int roce_gid_mgmt_init(void);
125 void roce_gid_mgmt_cleanup(void);
127 unsigned long roce_gid_type_mask_support(struct ib_device *ib_dev, u8 port);
129 int ib_cache_setup_one(struct ib_device *device);
130 void ib_cache_cleanup_one(struct ib_device *device);
131 void ib_cache_release_one(struct ib_device *device);
133 #ifdef CONFIG_CGROUP_RDMA
134 void ib_device_register_rdmacg(struct ib_device *device);
135 void ib_device_unregister_rdmacg(struct ib_device *device);
137 int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj,
138 struct ib_device *device,
139 enum rdmacg_resource_type resource_index);
141 void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj,
142 struct ib_device *device,
143 enum rdmacg_resource_type resource_index);
145 static inline void ib_device_register_rdmacg(struct ib_device *device)
149 static inline void ib_device_unregister_rdmacg(struct ib_device *device)
153 static inline int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj,
154 struct ib_device *device,
155 enum rdmacg_resource_type resource_index)
160 static inline void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj,
161 struct ib_device *device,
162 enum rdmacg_resource_type resource_index)
167 static inline bool rdma_is_upper_dev_rcu(struct net_device *dev,
168 struct net_device *upper)
170 return netdev_has_upper_dev_all_rcu(dev, upper);
174 void addr_cleanup(void);
176 int ib_mad_init(void);
177 void ib_mad_cleanup(void);
179 int ib_sa_init(void);
180 void ib_sa_cleanup(void);
182 int rdma_nl_init(void);
183 void rdma_nl_exit(void);
185 int ib_nl_handle_resolve_resp(struct sk_buff *skb,
186 struct nlmsghdr *nlh,
187 struct netlink_ext_ack *extack);
188 int ib_nl_handle_set_timeout(struct sk_buff *skb,
189 struct nlmsghdr *nlh,
190 struct netlink_ext_ack *extack);
191 int ib_nl_handle_ip_res_resp(struct sk_buff *skb,
192 struct nlmsghdr *nlh,
193 struct netlink_ext_ack *extack);
195 int ib_get_cached_subnet_prefix(struct ib_device *device,
199 #ifdef CONFIG_SECURITY_INFINIBAND
200 void ib_security_release_port_pkey_list(struct ib_device *device);
202 void ib_security_cache_change(struct ib_device *device,
206 int ib_security_modify_qp(struct ib_qp *qp,
207 struct ib_qp_attr *qp_attr,
209 struct ib_udata *udata);
211 int ib_create_qp_security(struct ib_qp *qp, struct ib_device *dev);
212 void ib_destroy_qp_security_begin(struct ib_qp_security *sec);
213 void ib_destroy_qp_security_abort(struct ib_qp_security *sec);
214 void ib_destroy_qp_security_end(struct ib_qp_security *sec);
215 int ib_open_shared_qp_security(struct ib_qp *qp, struct ib_device *dev);
216 void ib_close_shared_qp_security(struct ib_qp_security *sec);
217 int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
218 enum ib_qp_type qp_type);
219 void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent);
220 int ib_mad_enforce_security(struct ib_mad_agent_private *map, u16 pkey_index);
221 void ib_mad_agent_security_change(void);
223 static inline void ib_security_release_port_pkey_list(struct ib_device *device)
227 static inline void ib_security_cache_change(struct ib_device *device,
233 static inline int ib_security_modify_qp(struct ib_qp *qp,
234 struct ib_qp_attr *qp_attr,
236 struct ib_udata *udata)
238 return qp->device->ops.modify_qp(qp->real_qp,
244 static inline int ib_create_qp_security(struct ib_qp *qp,
245 struct ib_device *dev)
250 static inline void ib_destroy_qp_security_begin(struct ib_qp_security *sec)
254 static inline void ib_destroy_qp_security_abort(struct ib_qp_security *sec)
258 static inline void ib_destroy_qp_security_end(struct ib_qp_security *sec)
262 static inline int ib_open_shared_qp_security(struct ib_qp *qp,
263 struct ib_device *dev)
268 static inline void ib_close_shared_qp_security(struct ib_qp_security *sec)
272 static inline int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
273 enum ib_qp_type qp_type)
278 static inline void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent)
282 static inline int ib_mad_enforce_security(struct ib_mad_agent_private *map,
288 static inline void ib_mad_agent_security_change(void)
293 struct ib_device *ib_device_get_by_index(const struct net *net, u32 index);
295 /* RDMA device netlink */
296 void nldev_init(void);
297 void nldev_exit(void);
299 static inline struct ib_qp *_ib_create_qp(struct ib_device *dev,
301 struct ib_qp_init_attr *attr,
302 struct ib_udata *udata,
303 struct ib_uobject *uobj)
307 if (!dev->ops.create_qp)
308 return ERR_PTR(-EOPNOTSUPP);
310 qp = dev->ops.create_qp(pd, attr, udata);
319 * We don't track XRC QPs for now, because they don't have PD
320 * and more importantly they are created internaly by driver,
321 * see mlx5 create_dev_resources() as an example.
323 if (attr->qp_type < IB_QPT_XRC_INI) {
324 qp->res.type = RDMA_RESTRACK_QP;
326 rdma_restrack_uadd(&qp->res);
328 rdma_restrack_kadd(&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);
353 void ib_free_port_attrs(struct ib_core_device *coredev);
354 int ib_setup_port_attrs(struct ib_core_device *coredev);
356 int rdma_compatdev_set(u8 enable);
358 int ib_port_register_module_stat(struct ib_device *device, u8 port_num,
359 struct kobject *kobj, struct kobj_type *ktype,
361 void ib_port_unregister_module_stat(struct kobject *kobj);
363 int ib_device_set_netns_put(struct sk_buff *skb,
364 struct ib_device *dev, u32 ns_fd);
365 #endif /* _CORE_PRIV_H */