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 int ib_device_register_sysfs(struct ib_device *device,
58 int (*port_callback)(struct ib_device *,
59 u8, struct kobject *));
60 void ib_device_unregister_sysfs(struct ib_device *device);
61 int ib_device_rename(struct ib_device *ibdev, const char *name);
63 typedef void (*roce_netdev_callback)(struct ib_device *device, u8 port,
64 struct net_device *idev, void *cookie);
66 typedef bool (*roce_netdev_filter)(struct ib_device *device, u8 port,
67 struct net_device *idev, void *cookie);
69 void ib_enum_roce_netdev(struct ib_device *ib_dev,
70 roce_netdev_filter filter,
72 roce_netdev_callback cb,
74 void ib_enum_all_roce_netdevs(roce_netdev_filter filter,
76 roce_netdev_callback cb,
79 typedef int (*nldev_callback)(struct ib_device *device,
81 struct netlink_callback *cb,
84 int ib_enum_all_devs(nldev_callback nldev_cb, struct sk_buff *skb,
85 struct netlink_callback *cb);
87 enum ib_cache_gid_default_mode {
88 IB_CACHE_GID_DEFAULT_MODE_SET,
89 IB_CACHE_GID_DEFAULT_MODE_DELETE
92 int ib_cache_gid_parse_type_str(const char *buf);
94 const char *ib_cache_gid_type_str(enum ib_gid_type gid_type);
96 void ib_cache_gid_set_default_gid(struct ib_device *ib_dev, u8 port,
97 struct net_device *ndev,
98 unsigned long gid_type_mask,
99 enum ib_cache_gid_default_mode mode);
101 int ib_cache_gid_add(struct ib_device *ib_dev, u8 port,
102 union ib_gid *gid, struct ib_gid_attr *attr);
104 int ib_cache_gid_del(struct ib_device *ib_dev, u8 port,
105 union ib_gid *gid, struct ib_gid_attr *attr);
107 int ib_cache_gid_del_all_netdev_gids(struct ib_device *ib_dev, u8 port,
108 struct net_device *ndev);
110 int roce_gid_mgmt_init(void);
111 void roce_gid_mgmt_cleanup(void);
113 unsigned long roce_gid_type_mask_support(struct ib_device *ib_dev, u8 port);
115 int ib_cache_setup_one(struct ib_device *device);
116 void ib_cache_cleanup_one(struct ib_device *device);
117 void ib_cache_release_one(struct ib_device *device);
119 #ifdef CONFIG_CGROUP_RDMA
120 int ib_device_register_rdmacg(struct ib_device *device);
121 void ib_device_unregister_rdmacg(struct ib_device *device);
123 int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj,
124 struct ib_device *device,
125 enum rdmacg_resource_type resource_index);
127 void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj,
128 struct ib_device *device,
129 enum rdmacg_resource_type resource_index);
131 static inline int ib_device_register_rdmacg(struct ib_device *device)
134 static inline void ib_device_unregister_rdmacg(struct ib_device *device)
137 static inline int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj,
138 struct ib_device *device,
139 enum rdmacg_resource_type resource_index)
142 static inline void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj,
143 struct ib_device *device,
144 enum rdmacg_resource_type resource_index)
148 static inline bool rdma_is_upper_dev_rcu(struct net_device *dev,
149 struct net_device *upper)
151 return netdev_has_upper_dev_all_rcu(dev, upper);
155 void addr_cleanup(void);
157 int ib_mad_init(void);
158 void ib_mad_cleanup(void);
160 int ib_sa_init(void);
161 void ib_sa_cleanup(void);
163 int rdma_nl_init(void);
164 void rdma_nl_exit(void);
166 int ib_nl_handle_resolve_resp(struct sk_buff *skb,
167 struct nlmsghdr *nlh,
168 struct netlink_ext_ack *extack);
169 int ib_nl_handle_set_timeout(struct sk_buff *skb,
170 struct nlmsghdr *nlh,
171 struct netlink_ext_ack *extack);
172 int ib_nl_handle_ip_res_resp(struct sk_buff *skb,
173 struct nlmsghdr *nlh,
174 struct netlink_ext_ack *extack);
176 int ib_get_cached_subnet_prefix(struct ib_device *device,
180 #ifdef CONFIG_SECURITY_INFINIBAND
181 void ib_security_destroy_port_pkey_list(struct ib_device *device);
183 void ib_security_cache_change(struct ib_device *device,
187 int ib_security_modify_qp(struct ib_qp *qp,
188 struct ib_qp_attr *qp_attr,
190 struct ib_udata *udata);
192 int ib_create_qp_security(struct ib_qp *qp, struct ib_device *dev);
193 void ib_destroy_qp_security_begin(struct ib_qp_security *sec);
194 void ib_destroy_qp_security_abort(struct ib_qp_security *sec);
195 void ib_destroy_qp_security_end(struct ib_qp_security *sec);
196 int ib_open_shared_qp_security(struct ib_qp *qp, struct ib_device *dev);
197 void ib_close_shared_qp_security(struct ib_qp_security *sec);
198 int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
199 enum ib_qp_type qp_type);
200 void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent);
201 int ib_mad_enforce_security(struct ib_mad_agent_private *map, u16 pkey_index);
203 static inline void ib_security_destroy_port_pkey_list(struct ib_device *device)
207 static inline void ib_security_cache_change(struct ib_device *device,
213 static inline int ib_security_modify_qp(struct ib_qp *qp,
214 struct ib_qp_attr *qp_attr,
216 struct ib_udata *udata)
218 return qp->device->ops.modify_qp(qp->real_qp,
224 static inline int ib_create_qp_security(struct ib_qp *qp,
225 struct ib_device *dev)
230 static inline void ib_destroy_qp_security_begin(struct ib_qp_security *sec)
234 static inline void ib_destroy_qp_security_abort(struct ib_qp_security *sec)
238 static inline void ib_destroy_qp_security_end(struct ib_qp_security *sec)
242 static inline int ib_open_shared_qp_security(struct ib_qp *qp,
243 struct ib_device *dev)
248 static inline void ib_close_shared_qp_security(struct ib_qp_security *sec)
252 static inline int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
253 enum ib_qp_type qp_type)
258 static inline void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent)
262 static inline int ib_mad_enforce_security(struct ib_mad_agent_private *map,
269 struct ib_device *ib_device_get_by_index(u32 ifindex);
270 void ib_device_put(struct ib_device *device);
271 /* RDMA device netlink */
272 void nldev_init(void);
273 void nldev_exit(void);
275 static inline struct ib_qp *_ib_create_qp(struct ib_device *dev,
277 struct ib_qp_init_attr *attr,
278 struct ib_udata *udata,
279 struct ib_uobject *uobj)
283 if (!dev->ops.create_qp)
284 return ERR_PTR(-EOPNOTSUPP);
286 qp = dev->ops.create_qp(pd, attr, udata);
294 * We don't track XRC QPs for now, because they don't have PD
295 * and more importantly they are created internaly by driver,
296 * see mlx5 create_dev_resources() as an example.
298 if (attr->qp_type < IB_QPT_XRC_INI) {
299 qp->res.type = RDMA_RESTRACK_QP;
300 rdma_restrack_add(&qp->res);
302 qp->res.valid = false;
307 struct rdma_dev_addr;
308 int rdma_resolve_ip_route(struct sockaddr *src_addr,
309 const struct sockaddr *dst_addr,
310 struct rdma_dev_addr *addr);
312 int rdma_addr_find_l2_eth_by_grh(const union ib_gid *sgid,
313 const union ib_gid *dgid,
314 u8 *dmac, const struct ib_gid_attr *sgid_attr,
316 void rdma_copy_src_l2_addr(struct rdma_dev_addr *dev_addr,
317 const struct net_device *dev);
320 int roce_resolve_route_from_path(struct sa_path_rec *rec,
321 const struct ib_gid_attr *attr);
323 struct net_device *rdma_read_gid_attr_ndev_rcu(const struct ib_gid_attr *attr);
324 #endif /* _CORE_PRIV_H */