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 void ib_device_unregister_sysfs(struct ib_device *device);
59 int ib_device_rename(struct ib_device *ibdev, const char *name);
61 typedef void (*roce_netdev_callback)(struct ib_device *device, u8 port,
62 struct net_device *idev, void *cookie);
64 typedef bool (*roce_netdev_filter)(struct ib_device *device, u8 port,
65 struct net_device *idev, void *cookie);
67 void ib_enum_roce_netdev(struct ib_device *ib_dev,
68 roce_netdev_filter filter,
70 roce_netdev_callback cb,
72 void ib_enum_all_roce_netdevs(roce_netdev_filter filter,
74 roce_netdev_callback cb,
77 typedef int (*nldev_callback)(struct ib_device *device,
79 struct netlink_callback *cb,
82 int ib_enum_all_devs(nldev_callback nldev_cb, struct sk_buff *skb,
83 struct netlink_callback *cb);
85 enum ib_cache_gid_default_mode {
86 IB_CACHE_GID_DEFAULT_MODE_SET,
87 IB_CACHE_GID_DEFAULT_MODE_DELETE
90 int ib_cache_gid_parse_type_str(const char *buf);
92 const char *ib_cache_gid_type_str(enum ib_gid_type gid_type);
94 void ib_cache_gid_set_default_gid(struct ib_device *ib_dev, u8 port,
95 struct net_device *ndev,
96 unsigned long gid_type_mask,
97 enum ib_cache_gid_default_mode mode);
99 int ib_cache_gid_add(struct ib_device *ib_dev, u8 port,
100 union ib_gid *gid, struct ib_gid_attr *attr);
102 int ib_cache_gid_del(struct ib_device *ib_dev, u8 port,
103 union ib_gid *gid, struct ib_gid_attr *attr);
105 int ib_cache_gid_del_all_netdev_gids(struct ib_device *ib_dev, u8 port,
106 struct net_device *ndev);
108 int roce_gid_mgmt_init(void);
109 void roce_gid_mgmt_cleanup(void);
111 unsigned long roce_gid_type_mask_support(struct ib_device *ib_dev, u8 port);
113 int ib_cache_setup_one(struct ib_device *device);
114 void ib_cache_cleanup_one(struct ib_device *device);
115 void ib_cache_release_one(struct ib_device *device);
117 #ifdef CONFIG_CGROUP_RDMA
118 int ib_device_register_rdmacg(struct ib_device *device);
119 void ib_device_unregister_rdmacg(struct ib_device *device);
121 int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj,
122 struct ib_device *device,
123 enum rdmacg_resource_type resource_index);
125 void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj,
126 struct ib_device *device,
127 enum rdmacg_resource_type resource_index);
129 static inline int ib_device_register_rdmacg(struct ib_device *device)
132 static inline void ib_device_unregister_rdmacg(struct ib_device *device)
135 static inline int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj,
136 struct ib_device *device,
137 enum rdmacg_resource_type resource_index)
140 static inline void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj,
141 struct ib_device *device,
142 enum rdmacg_resource_type resource_index)
146 static inline bool rdma_is_upper_dev_rcu(struct net_device *dev,
147 struct net_device *upper)
149 return netdev_has_upper_dev_all_rcu(dev, upper);
153 void addr_cleanup(void);
155 int ib_mad_init(void);
156 void ib_mad_cleanup(void);
158 int ib_sa_init(void);
159 void ib_sa_cleanup(void);
161 int rdma_nl_init(void);
162 void rdma_nl_exit(void);
164 int ib_nl_handle_resolve_resp(struct sk_buff *skb,
165 struct nlmsghdr *nlh,
166 struct netlink_ext_ack *extack);
167 int ib_nl_handle_set_timeout(struct sk_buff *skb,
168 struct nlmsghdr *nlh,
169 struct netlink_ext_ack *extack);
170 int ib_nl_handle_ip_res_resp(struct sk_buff *skb,
171 struct nlmsghdr *nlh,
172 struct netlink_ext_ack *extack);
174 int ib_get_cached_subnet_prefix(struct ib_device *device,
178 #ifdef CONFIG_SECURITY_INFINIBAND
179 void ib_security_destroy_port_pkey_list(struct ib_device *device);
181 void ib_security_cache_change(struct ib_device *device,
185 int ib_security_modify_qp(struct ib_qp *qp,
186 struct ib_qp_attr *qp_attr,
188 struct ib_udata *udata);
190 int ib_create_qp_security(struct ib_qp *qp, struct ib_device *dev);
191 void ib_destroy_qp_security_begin(struct ib_qp_security *sec);
192 void ib_destroy_qp_security_abort(struct ib_qp_security *sec);
193 void ib_destroy_qp_security_end(struct ib_qp_security *sec);
194 int ib_open_shared_qp_security(struct ib_qp *qp, struct ib_device *dev);
195 void ib_close_shared_qp_security(struct ib_qp_security *sec);
196 int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
197 enum ib_qp_type qp_type);
198 void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent);
199 int ib_mad_enforce_security(struct ib_mad_agent_private *map, u16 pkey_index);
201 static inline void ib_security_destroy_port_pkey_list(struct ib_device *device)
205 static inline void ib_security_cache_change(struct ib_device *device,
211 static inline int ib_security_modify_qp(struct ib_qp *qp,
212 struct ib_qp_attr *qp_attr,
214 struct ib_udata *udata)
216 return qp->device->ops.modify_qp(qp->real_qp,
222 static inline int ib_create_qp_security(struct ib_qp *qp,
223 struct ib_device *dev)
228 static inline void ib_destroy_qp_security_begin(struct ib_qp_security *sec)
232 static inline void ib_destroy_qp_security_abort(struct ib_qp_security *sec)
236 static inline void ib_destroy_qp_security_end(struct ib_qp_security *sec)
240 static inline int ib_open_shared_qp_security(struct ib_qp *qp,
241 struct ib_device *dev)
246 static inline void ib_close_shared_qp_security(struct ib_qp_security *sec)
250 static inline int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
251 enum ib_qp_type qp_type)
256 static inline void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent)
260 static inline int ib_mad_enforce_security(struct ib_mad_agent_private *map,
267 struct ib_device *ib_device_get_by_index(u32 ifindex);
268 void ib_device_put(struct ib_device *device);
269 /* RDMA device netlink */
270 void nldev_init(void);
271 void nldev_exit(void);
273 static inline struct ib_qp *_ib_create_qp(struct ib_device *dev,
275 struct ib_qp_init_attr *attr,
276 struct ib_udata *udata,
277 struct ib_uobject *uobj)
281 if (!dev->ops.create_qp)
282 return ERR_PTR(-EOPNOTSUPP);
284 qp = dev->ops.create_qp(pd, attr, udata);
292 * We don't track XRC QPs for now, because they don't have PD
293 * and more importantly they are created internaly by driver,
294 * see mlx5 create_dev_resources() as an example.
296 if (attr->qp_type < IB_QPT_XRC_INI) {
297 qp->res.type = RDMA_RESTRACK_QP;
299 rdma_restrack_uadd(&qp->res);
301 rdma_restrack_kadd(&qp->res);
303 qp->res.valid = false;
308 struct rdma_dev_addr;
309 int rdma_resolve_ip_route(struct sockaddr *src_addr,
310 const struct sockaddr *dst_addr,
311 struct rdma_dev_addr *addr);
313 int rdma_addr_find_l2_eth_by_grh(const union ib_gid *sgid,
314 const union ib_gid *dgid,
315 u8 *dmac, const struct ib_gid_attr *sgid_attr,
317 void rdma_copy_src_l2_addr(struct rdma_dev_addr *dev_addr,
318 const struct net_device *dev);
321 int roce_resolve_route_from_path(struct sa_path_rec *rec,
322 const struct ib_gid_attr *attr);
324 struct net_device *rdma_read_gid_attr_ndev_rcu(const struct ib_gid_attr *attr);
325 #endif /* _CORE_PRIV_H */