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
40 #include <rdma/ib_verbs.h>
41 #include <rdma/opa_addr.h>
42 #include <rdma/ib_mad.h>
43 #include <rdma/restrack.h>
44 #include "mad_priv.h"
45
46 /* Total number of ports combined across all struct ib_devices's */
47 #define RDMA_MAX_PORTS 1024
48
49 struct pkey_index_qp_list {
50 struct list_head pkey_index_list;
51 u16 pkey_index;
52 /* Lock to hold while iterating the qp_list. */
53 spinlock_t qp_list_lock;
54 struct list_head qp_list;
55 };
56
57 #if IS_ENABLED(CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS)
58 int cma_configfs_init(void);
59 void cma_configfs_exit(void);
60 #else
cma_configfs_init(void)61 static inline int cma_configfs_init(void)
62 {
63 return 0;
64 }
65
cma_configfs_exit(void)66 static inline void cma_configfs_exit(void)
67 {
68 }
69 #endif
70 struct cma_device;
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,
75 void *cookie);
76 int cma_get_default_gid_type(struct cma_device *cma_dev,
77 unsigned int port);
78 int cma_set_default_gid_type(struct cma_device *cma_dev,
79 unsigned int port,
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,
83 u8 default_roce_tos);
84 struct ib_device *cma_get_ib_dev(struct cma_device *cma_dev);
85
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
91 typedef void (*roce_netdev_callback)(struct ib_device *device, u8 port,
92 struct net_device *idev, void *cookie);
93
94 typedef bool (*roce_netdev_filter)(struct ib_device *device, u8 port,
95 struct net_device *idev, void *cookie);
96
97 void ib_enum_roce_netdev(struct ib_device *ib_dev,
98 roce_netdev_filter filter,
99 void *filter_cookie,
100 roce_netdev_callback cb,
101 void *cookie);
102 void ib_enum_all_roce_netdevs(roce_netdev_filter filter,
103 void *filter_cookie,
104 roce_netdev_callback cb,
105 void *cookie);
106
107 typedef int (*nldev_callback)(struct ib_device *device,
108 struct sk_buff *skb,
109 struct netlink_callback *cb,
110 unsigned int idx);
111
112 int ib_enum_all_devs(nldev_callback nldev_cb, struct sk_buff *skb,
113 struct netlink_callback *cb);
114
115 enum ib_cache_gid_default_mode {
116 IB_CACHE_GID_DEFAULT_MODE_SET,
117 IB_CACHE_GID_DEFAULT_MODE_DELETE
118 };
119
120 int ib_cache_gid_parse_type_str(const char *buf);
121
122 const char *ib_cache_gid_type_str(enum ib_gid_type gid_type);
123
124 void ib_cache_gid_set_default_gid(struct ib_device *ib_dev, u8 port,
125 struct net_device *ndev,
126 unsigned long gid_type_mask,
127 enum ib_cache_gid_default_mode mode);
128
129 int ib_cache_gid_add(struct ib_device *ib_dev, u8 port,
130 union ib_gid *gid, struct ib_gid_attr *attr);
131
132 int ib_cache_gid_del(struct ib_device *ib_dev, u8 port,
133 union ib_gid *gid, struct ib_gid_attr *attr);
134
135 int ib_cache_gid_del_all_netdev_gids(struct ib_device *ib_dev, u8 port,
136 struct net_device *ndev);
137
138 int roce_gid_mgmt_init(void);
139 void roce_gid_mgmt_cleanup(void);
140
141 unsigned long roce_gid_type_mask_support(struct ib_device *ib_dev, u8 port);
142
143 int ib_cache_setup_one(struct ib_device *device);
144 void ib_cache_cleanup_one(struct ib_device *device);
145 void ib_cache_release_one(struct ib_device *device);
146
147 #ifdef CONFIG_CGROUP_RDMA
148 int ib_device_register_rdmacg(struct ib_device *device);
149 void ib_device_unregister_rdmacg(struct ib_device *device);
150
151 int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj,
152 struct ib_device *device,
153 enum rdmacg_resource_type resource_index);
154
155 void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj,
156 struct ib_device *device,
157 enum rdmacg_resource_type resource_index);
158 #else
ib_device_register_rdmacg(struct ib_device * device)159 static inline int ib_device_register_rdmacg(struct ib_device *device)
160 { return 0; }
161
ib_device_unregister_rdmacg(struct ib_device * device)162 static inline void ib_device_unregister_rdmacg(struct ib_device *device)
163 { }
164
ib_rdmacg_try_charge(struct ib_rdmacg_object * cg_obj,struct ib_device * device,enum rdmacg_resource_type resource_index)165 static inline int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj,
166 struct ib_device *device,
167 enum rdmacg_resource_type resource_index)
168 { return 0; }
169
ib_rdmacg_uncharge(struct ib_rdmacg_object * cg_obj,struct ib_device * device,enum rdmacg_resource_type resource_index)170 static inline void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj,
171 struct ib_device *device,
172 enum rdmacg_resource_type resource_index)
173 { }
174 #endif
175
rdma_is_upper_dev_rcu(struct net_device * dev,struct net_device * upper)176 static inline bool rdma_is_upper_dev_rcu(struct net_device *dev,
177 struct net_device *upper)
178 {
179 return netdev_has_upper_dev_all_rcu(dev, upper);
180 }
181
182 int addr_init(void);
183 void addr_cleanup(void);
184
185 int ib_mad_init(void);
186 void ib_mad_cleanup(void);
187
188 int ib_sa_init(void);
189 void ib_sa_cleanup(void);
190
191 int rdma_nl_init(void);
192 void rdma_nl_exit(void);
193
194 int ib_nl_handle_resolve_resp(struct sk_buff *skb,
195 struct nlmsghdr *nlh,
196 struct netlink_ext_ack *extack);
197 int ib_nl_handle_set_timeout(struct sk_buff *skb,
198 struct nlmsghdr *nlh,
199 struct netlink_ext_ack *extack);
200 int ib_nl_handle_ip_res_resp(struct sk_buff *skb,
201 struct nlmsghdr *nlh,
202 struct netlink_ext_ack *extack);
203
204 int ib_get_cached_subnet_prefix(struct ib_device *device,
205 u8 port_num,
206 u64 *sn_pfx);
207
208 #ifdef CONFIG_SECURITY_INFINIBAND
209 void ib_security_destroy_port_pkey_list(struct ib_device *device);
210
211 void ib_security_cache_change(struct ib_device *device,
212 u8 port_num,
213 u64 subnet_prefix);
214
215 int ib_security_modify_qp(struct ib_qp *qp,
216 struct ib_qp_attr *qp_attr,
217 int qp_attr_mask,
218 struct ib_udata *udata);
219
220 int ib_create_qp_security(struct ib_qp *qp, struct ib_device *dev);
221 void ib_destroy_qp_security_begin(struct ib_qp_security *sec);
222 void ib_destroy_qp_security_abort(struct ib_qp_security *sec);
223 void ib_destroy_qp_security_end(struct ib_qp_security *sec);
224 int ib_open_shared_qp_security(struct ib_qp *qp, struct ib_device *dev);
225 void ib_close_shared_qp_security(struct ib_qp_security *sec);
226 int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
227 enum ib_qp_type qp_type);
228 void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent);
229 int ib_mad_enforce_security(struct ib_mad_agent_private *map, u16 pkey_index);
230 #else
ib_security_destroy_port_pkey_list(struct ib_device * device)231 static inline void ib_security_destroy_port_pkey_list(struct ib_device *device)
232 {
233 }
234
ib_security_cache_change(struct ib_device * device,u8 port_num,u64 subnet_prefix)235 static inline void ib_security_cache_change(struct ib_device *device,
236 u8 port_num,
237 u64 subnet_prefix)
238 {
239 }
240
ib_security_modify_qp(struct ib_qp * qp,struct ib_qp_attr * qp_attr,int qp_attr_mask,struct ib_udata * udata)241 static inline int ib_security_modify_qp(struct ib_qp *qp,
242 struct ib_qp_attr *qp_attr,
243 int qp_attr_mask,
244 struct ib_udata *udata)
245 {
246 return qp->device->modify_qp(qp->real_qp,
247 qp_attr,
248 qp_attr_mask,
249 udata);
250 }
251
ib_create_qp_security(struct ib_qp * qp,struct ib_device * dev)252 static inline int ib_create_qp_security(struct ib_qp *qp,
253 struct ib_device *dev)
254 {
255 return 0;
256 }
257
ib_destroy_qp_security_begin(struct ib_qp_security * sec)258 static inline void ib_destroy_qp_security_begin(struct ib_qp_security *sec)
259 {
260 }
261
ib_destroy_qp_security_abort(struct ib_qp_security * sec)262 static inline void ib_destroy_qp_security_abort(struct ib_qp_security *sec)
263 {
264 }
265
ib_destroy_qp_security_end(struct ib_qp_security * sec)266 static inline void ib_destroy_qp_security_end(struct ib_qp_security *sec)
267 {
268 }
269
ib_open_shared_qp_security(struct ib_qp * qp,struct ib_device * dev)270 static inline int ib_open_shared_qp_security(struct ib_qp *qp,
271 struct ib_device *dev)
272 {
273 return 0;
274 }
275
ib_close_shared_qp_security(struct ib_qp_security * sec)276 static inline void ib_close_shared_qp_security(struct ib_qp_security *sec)
277 {
278 }
279
ib_mad_agent_security_setup(struct ib_mad_agent * agent,enum ib_qp_type qp_type)280 static inline int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
281 enum ib_qp_type qp_type)
282 {
283 return 0;
284 }
285
ib_mad_agent_security_cleanup(struct ib_mad_agent * agent)286 static inline void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent)
287 {
288 }
289
ib_mad_enforce_security(struct ib_mad_agent_private * map,u16 pkey_index)290 static inline int ib_mad_enforce_security(struct ib_mad_agent_private *map,
291 u16 pkey_index)
292 {
293 return 0;
294 }
295 #endif
296
297 struct ib_device *ib_device_get_by_index(u32 ifindex);
298 /* RDMA device netlink */
299 void nldev_init(void);
300 void nldev_exit(void);
301
_ib_create_qp(struct ib_device * dev,struct ib_pd * pd,struct ib_qp_init_attr * attr,struct ib_udata * udata,struct ib_uobject * uobj)302 static inline struct ib_qp *_ib_create_qp(struct ib_device *dev,
303 struct ib_pd *pd,
304 struct ib_qp_init_attr *attr,
305 struct ib_udata *udata,
306 struct ib_uobject *uobj)
307 {
308 struct ib_qp *qp;
309
310 if (!dev->create_qp)
311 return ERR_PTR(-EOPNOTSUPP);
312
313 qp = dev->create_qp(pd, attr, udata);
314 if (IS_ERR(qp))
315 return qp;
316
317 qp->device = dev;
318 qp->pd = pd;
319 qp->uobject = uobj;
320 /*
321 * We don't track XRC QPs for now, because they don't have PD
322 * and more importantly they are created internaly by driver,
323 * see mlx5 create_dev_resources() as an example.
324 */
325 if (attr->qp_type < IB_QPT_XRC_INI) {
326 qp->res.type = RDMA_RESTRACK_QP;
327 rdma_restrack_add(&qp->res);
328 } else
329 qp->res.valid = false;
330
331 return qp;
332 }
333
334 struct rdma_dev_addr;
335 int rdma_resolve_ip_route(struct sockaddr *src_addr,
336 const struct sockaddr *dst_addr,
337 struct rdma_dev_addr *addr);
338
339 int rdma_addr_find_l2_eth_by_grh(const union ib_gid *sgid,
340 const union ib_gid *dgid,
341 u8 *dmac, const struct net_device *ndev,
342 int *hoplimit);
343
344 #endif /* _CORE_PRIV_H */
345
