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 #include <net/net_namespace.h>
40 #include <net/netns/generic.h>
41
42 #include <rdma/ib_verbs.h>
43 #include <rdma/opa_addr.h>
44 #include <rdma/ib_mad.h>
45 #include <rdma/restrack.h>
46 #include "mad_priv.h"
47 #include "restrack.h"
48
49 /* Total number of ports combined across all struct ib_devices's */
50 #define RDMA_MAX_PORTS 8192
51
52 struct pkey_index_qp_list {
53 struct list_head pkey_index_list;
54 u16 pkey_index;
55 /* Lock to hold while iterating the qp_list. */
56 spinlock_t qp_list_lock;
57 struct list_head qp_list;
58 };
59
60 /**
61 * struct rdma_dev_net - rdma net namespace metadata for a net
62 * @nl_sock: Pointer to netlink socket
63 * @net: Pointer to owner net namespace
64 * @id: xarray id to identify the net namespace.
65 */
66 struct rdma_dev_net {
67 struct sock *nl_sock;
68 possible_net_t net;
69 u32 id;
70 };
71
72 extern const struct attribute_group ib_dev_attr_group;
73 extern bool ib_devices_shared_netns;
74 extern unsigned int rdma_dev_net_id;
75
rdma_net_to_dev_net(struct net * net)76 static inline struct rdma_dev_net *rdma_net_to_dev_net(struct net *net)
77 {
78 return net_generic(net, rdma_dev_net_id);
79 }
80
81 int ib_device_rename(struct ib_device *ibdev, const char *name);
82 int ib_device_set_dim(struct ib_device *ibdev, u8 use_dim);
83
84 typedef void (*roce_netdev_callback)(struct ib_device *device, u32 port,
85 struct net_device *idev, void *cookie);
86
87 typedef bool (*roce_netdev_filter)(struct ib_device *device, u32 port,
88 struct net_device *idev, void *cookie);
89
90 struct net_device *ib_device_get_netdev(struct ib_device *ib_dev,
91 u32 port);
92
93 void ib_enum_roce_netdev(struct ib_device *ib_dev,
94 roce_netdev_filter filter,
95 void *filter_cookie,
96 roce_netdev_callback cb,
97 void *cookie);
98 void ib_enum_all_roce_netdevs(roce_netdev_filter filter,
99 void *filter_cookie,
100 roce_netdev_callback cb,
101 void *cookie);
102
103 typedef int (*nldev_callback)(struct ib_device *device,
104 struct sk_buff *skb,
105 struct netlink_callback *cb,
106 unsigned int idx);
107
108 int ib_enum_all_devs(nldev_callback nldev_cb, struct sk_buff *skb,
109 struct netlink_callback *cb);
110
111 struct ib_client_nl_info {
112 struct sk_buff *nl_msg;
113 struct device *cdev;
114 u32 port;
115 u64 abi;
116 };
117 int ib_get_client_nl_info(struct ib_device *ibdev, const char *client_name,
118 struct ib_client_nl_info *res);
119
120 enum ib_cache_gid_default_mode {
121 IB_CACHE_GID_DEFAULT_MODE_SET,
122 IB_CACHE_GID_DEFAULT_MODE_DELETE
123 };
124
125 int ib_cache_gid_parse_type_str(const char *buf);
126
127 const char *ib_cache_gid_type_str(enum ib_gid_type gid_type);
128
129 void ib_cache_gid_set_default_gid(struct ib_device *ib_dev, u32 port,
130 struct net_device *ndev,
131 unsigned long gid_type_mask,
132 enum ib_cache_gid_default_mode mode);
133
134 int ib_cache_gid_add(struct ib_device *ib_dev, u32 port,
135 union ib_gid *gid, struct ib_gid_attr *attr);
136
137 int ib_cache_gid_del(struct ib_device *ib_dev, u32 port,
138 union ib_gid *gid, struct ib_gid_attr *attr);
139
140 int ib_cache_gid_del_all_netdev_gids(struct ib_device *ib_dev, u32 port,
141 struct net_device *ndev);
142
143 int roce_gid_mgmt_init(void);
144 void roce_gid_mgmt_cleanup(void);
145
146 unsigned long roce_gid_type_mask_support(struct ib_device *ib_dev, u32 port);
147
148 int ib_cache_setup_one(struct ib_device *device);
149 void ib_cache_cleanup_one(struct ib_device *device);
150 void ib_cache_release_one(struct ib_device *device);
151 void ib_dispatch_event_clients(struct ib_event *event);
152
153 #ifdef CONFIG_CGROUP_RDMA
154 void ib_device_register_rdmacg(struct ib_device *device);
155 void ib_device_unregister_rdmacg(struct ib_device *device);
156
157 int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj,
158 struct ib_device *device,
159 enum rdmacg_resource_type resource_index);
160
161 void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj,
162 struct ib_device *device,
163 enum rdmacg_resource_type resource_index);
164 #else
ib_device_register_rdmacg(struct ib_device * device)165 static inline void ib_device_register_rdmacg(struct ib_device *device)
166 {
167 }
168
ib_device_unregister_rdmacg(struct ib_device * device)169 static inline void ib_device_unregister_rdmacg(struct ib_device *device)
170 {
171 }
172
ib_rdmacg_try_charge(struct ib_rdmacg_object * cg_obj,struct ib_device * device,enum rdmacg_resource_type resource_index)173 static inline int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj,
174 struct ib_device *device,
175 enum rdmacg_resource_type resource_index)
176 {
177 return 0;
178 }
179
ib_rdmacg_uncharge(struct ib_rdmacg_object * cg_obj,struct ib_device * device,enum rdmacg_resource_type resource_index)180 static inline void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj,
181 struct ib_device *device,
182 enum rdmacg_resource_type resource_index)
183 {
184 }
185 #endif
186
rdma_is_upper_dev_rcu(struct net_device * dev,struct net_device * upper)187 static inline bool rdma_is_upper_dev_rcu(struct net_device *dev,
188 struct net_device *upper)
189 {
190 return netdev_has_upper_dev_all_rcu(dev, upper);
191 }
192
193 int addr_init(void);
194 void addr_cleanup(void);
195
196 int ib_mad_init(void);
197 void ib_mad_cleanup(void);
198
199 int ib_sa_init(void);
200 void ib_sa_cleanup(void);
201
202 void rdma_nl_init(void);
203 void rdma_nl_exit(void);
204
205 int ib_nl_handle_resolve_resp(struct sk_buff *skb,
206 struct nlmsghdr *nlh,
207 struct netlink_ext_ack *extack);
208 int ib_nl_handle_set_timeout(struct sk_buff *skb,
209 struct nlmsghdr *nlh,
210 struct netlink_ext_ack *extack);
211 int ib_nl_handle_ip_res_resp(struct sk_buff *skb,
212 struct nlmsghdr *nlh,
213 struct netlink_ext_ack *extack);
214
215 void ib_get_cached_subnet_prefix(struct ib_device *device,
216 u32 port_num,
217 u64 *sn_pfx);
218
219 #ifdef CONFIG_SECURITY_INFINIBAND
220 void ib_security_release_port_pkey_list(struct ib_device *device);
221
222 void ib_security_cache_change(struct ib_device *device,
223 u32 port_num,
224 u64 subnet_prefix);
225
226 int ib_security_modify_qp(struct ib_qp *qp,
227 struct ib_qp_attr *qp_attr,
228 int qp_attr_mask,
229 struct ib_udata *udata);
230
231 int ib_create_qp_security(struct ib_qp *qp, struct ib_device *dev);
232 void ib_destroy_qp_security_begin(struct ib_qp_security *sec);
233 void ib_destroy_qp_security_abort(struct ib_qp_security *sec);
234 void ib_destroy_qp_security_end(struct ib_qp_security *sec);
235 int ib_open_shared_qp_security(struct ib_qp *qp, struct ib_device *dev);
236 void ib_close_shared_qp_security(struct ib_qp_security *sec);
237 int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
238 enum ib_qp_type qp_type);
239 void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent);
240 int ib_mad_enforce_security(struct ib_mad_agent_private *map, u16 pkey_index);
241 void ib_mad_agent_security_change(void);
242 #else
ib_security_release_port_pkey_list(struct ib_device * device)243 static inline void ib_security_release_port_pkey_list(struct ib_device *device)
244 {
245 }
246
ib_security_cache_change(struct ib_device * device,u32 port_num,u64 subnet_prefix)247 static inline void ib_security_cache_change(struct ib_device *device,
248 u32 port_num,
249 u64 subnet_prefix)
250 {
251 }
252
ib_security_modify_qp(struct ib_qp * qp,struct ib_qp_attr * qp_attr,int qp_attr_mask,struct ib_udata * udata)253 static inline int ib_security_modify_qp(struct ib_qp *qp,
254 struct ib_qp_attr *qp_attr,
255 int qp_attr_mask,
256 struct ib_udata *udata)
257 {
258 return qp->device->ops.modify_qp(qp->real_qp,
259 qp_attr,
260 qp_attr_mask,
261 udata);
262 }
263
ib_create_qp_security(struct ib_qp * qp,struct ib_device * dev)264 static inline int ib_create_qp_security(struct ib_qp *qp,
265 struct ib_device *dev)
266 {
267 return 0;
268 }
269
ib_destroy_qp_security_begin(struct ib_qp_security * sec)270 static inline void ib_destroy_qp_security_begin(struct ib_qp_security *sec)
271 {
272 }
273
ib_destroy_qp_security_abort(struct ib_qp_security * sec)274 static inline void ib_destroy_qp_security_abort(struct ib_qp_security *sec)
275 {
276 }
277
ib_destroy_qp_security_end(struct ib_qp_security * sec)278 static inline void ib_destroy_qp_security_end(struct ib_qp_security *sec)
279 {
280 }
281
ib_open_shared_qp_security(struct ib_qp * qp,struct ib_device * dev)282 static inline int ib_open_shared_qp_security(struct ib_qp *qp,
283 struct ib_device *dev)
284 {
285 return 0;
286 }
287
ib_close_shared_qp_security(struct ib_qp_security * sec)288 static inline void ib_close_shared_qp_security(struct ib_qp_security *sec)
289 {
290 }
291
ib_mad_agent_security_setup(struct ib_mad_agent * agent,enum ib_qp_type qp_type)292 static inline int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
293 enum ib_qp_type qp_type)
294 {
295 return 0;
296 }
297
ib_mad_agent_security_cleanup(struct ib_mad_agent * agent)298 static inline void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent)
299 {
300 }
301
ib_mad_enforce_security(struct ib_mad_agent_private * map,u16 pkey_index)302 static inline int ib_mad_enforce_security(struct ib_mad_agent_private *map,
303 u16 pkey_index)
304 {
305 return 0;
306 }
307
ib_mad_agent_security_change(void)308 static inline void ib_mad_agent_security_change(void)
309 {
310 }
311 #endif
312
313 struct ib_device *ib_device_get_by_index(const struct net *net, u32 index);
314
315 /* RDMA device netlink */
316 void nldev_init(void);
317 void nldev_exit(void);
318
319 struct ib_qp *ib_create_qp_user(struct ib_device *dev, struct ib_pd *pd,
320 struct ib_qp_init_attr *attr,
321 struct ib_udata *udata,
322 struct ib_uqp_object *uobj, const char *caller);
323
324 void ib_qp_usecnt_inc(struct ib_qp *qp);
325 void ib_qp_usecnt_dec(struct ib_qp *qp);
326
327 struct rdma_dev_addr;
328 int rdma_resolve_ip_route(struct sockaddr *src_addr,
329 const struct sockaddr *dst_addr,
330 struct rdma_dev_addr *addr);
331
332 int rdma_addr_find_l2_eth_by_grh(const union ib_gid *sgid,
333 const union ib_gid *dgid,
334 u8 *dmac, const struct ib_gid_attr *sgid_attr,
335 int *hoplimit);
336 void rdma_copy_src_l2_addr(struct rdma_dev_addr *dev_addr,
337 const struct net_device *dev);
338
339 struct sa_path_rec;
340 int roce_resolve_route_from_path(struct sa_path_rec *rec,
341 const struct ib_gid_attr *attr);
342
343 struct net_device *rdma_read_gid_attr_ndev_rcu(const struct ib_gid_attr *attr);
344
345 void ib_free_port_attrs(struct ib_core_device *coredev);
346 int ib_setup_port_attrs(struct ib_core_device *coredev);
347 struct rdma_hw_stats *ib_get_hw_stats_port(struct ib_device *ibdev, u32 port_num);
348 void ib_device_release_hw_stats(struct hw_stats_device_data *data);
349 int ib_setup_device_attrs(struct ib_device *ibdev);
350
351 int rdma_compatdev_set(u8 enable);
352
353 int ib_port_register_client_groups(struct ib_device *ibdev, u32 port_num,
354 const struct attribute_group **groups);
355 void ib_port_unregister_client_groups(struct ib_device *ibdev, u32 port_num,
356 const struct attribute_group **groups);
357
358 int ib_device_set_netns_put(struct sk_buff *skb,
359 struct ib_device *dev, u32 ns_fd);
360
361 int rdma_nl_net_init(struct rdma_dev_net *rnet);
362 void rdma_nl_net_exit(struct rdma_dev_net *rnet);
363
364 struct rdma_umap_priv {
365 struct vm_area_struct *vma;
366 struct list_head list;
367 struct rdma_user_mmap_entry *entry;
368 };
369
370 void rdma_umap_priv_init(struct rdma_umap_priv *priv,
371 struct vm_area_struct *vma,
372 struct rdma_user_mmap_entry *entry);
373
374 void ib_cq_pool_cleanup(struct ib_device *dev);
375
376 #endif /* _CORE_PRIV_H */
377