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>
39 #include <net/net_namespace.h>
40 #include <net/netns/generic.h>
42 #include <rdma/ib_verbs.h>
43 #include <rdma/opa_addr.h>
44 #include <rdma/ib_mad.h>
45 #include <rdma/restrack.h>
48 /* Total number of ports combined across all struct ib_devices's */
49 #define RDMA_MAX_PORTS 8192
51 struct pkey_index_qp_list {
52 struct list_head pkey_index_list;
54 /* Lock to hold while iterating the qp_list. */
55 spinlock_t qp_list_lock;
56 struct list_head qp_list;
60 * struct rdma_dev_net - rdma net namespace metadata for a net
61 * @nl_sock: Pointer to netlink socket
62 * @net: Pointer to owner net namespace
63 * @id: xarray id to identify the net namespace.
71 extern const struct attribute_group ib_dev_attr_group;
72 extern bool ib_devices_shared_netns;
73 extern unsigned int rdma_dev_net_id;
75 static inline struct rdma_dev_net *rdma_net_to_dev_net(struct net *net)
77 return net_generic(net, rdma_dev_net_id);
80 int ib_device_register_sysfs(struct ib_device *device);
81 void ib_device_unregister_sysfs(struct ib_device *device);
82 int ib_device_rename(struct ib_device *ibdev, const char *name);
83 int ib_device_set_dim(struct ib_device *ibdev, u8 use_dim);
85 typedef void (*roce_netdev_callback)(struct ib_device *device, u8 port,
86 struct net_device *idev, void *cookie);
88 typedef bool (*roce_netdev_filter)(struct ib_device *device, u8 port,
89 struct net_device *idev, void *cookie);
91 struct net_device *ib_device_get_netdev(struct ib_device *ib_dev,
94 void ib_enum_roce_netdev(struct ib_device *ib_dev,
95 roce_netdev_filter filter,
97 roce_netdev_callback cb,
99 void ib_enum_all_roce_netdevs(roce_netdev_filter filter,
101 roce_netdev_callback cb,
104 typedef int (*nldev_callback)(struct ib_device *device,
106 struct netlink_callback *cb,
109 int ib_enum_all_devs(nldev_callback nldev_cb, struct sk_buff *skb,
110 struct netlink_callback *cb);
112 struct ib_client_nl_info {
113 struct sk_buff *nl_msg;
118 int ib_get_client_nl_info(struct ib_device *ibdev, const char *client_name,
119 struct ib_client_nl_info *res);
121 enum ib_cache_gid_default_mode {
122 IB_CACHE_GID_DEFAULT_MODE_SET,
123 IB_CACHE_GID_DEFAULT_MODE_DELETE
126 int ib_cache_gid_parse_type_str(const char *buf);
128 const char *ib_cache_gid_type_str(enum ib_gid_type gid_type);
130 void ib_cache_gid_set_default_gid(struct ib_device *ib_dev, u8 port,
131 struct net_device *ndev,
132 unsigned long gid_type_mask,
133 enum ib_cache_gid_default_mode mode);
135 int ib_cache_gid_add(struct ib_device *ib_dev, u8 port,
136 union ib_gid *gid, struct ib_gid_attr *attr);
138 int ib_cache_gid_del(struct ib_device *ib_dev, u8 port,
139 union ib_gid *gid, struct ib_gid_attr *attr);
141 int ib_cache_gid_del_all_netdev_gids(struct ib_device *ib_dev, u8 port,
142 struct net_device *ndev);
144 int roce_gid_mgmt_init(void);
145 void roce_gid_mgmt_cleanup(void);
147 unsigned long roce_gid_type_mask_support(struct ib_device *ib_dev, u8 port);
149 int ib_cache_setup_one(struct ib_device *device);
150 void ib_cache_cleanup_one(struct ib_device *device);
151 void ib_cache_release_one(struct ib_device *device);
152 void ib_dispatch_event_clients(struct ib_event *event);
154 #ifdef CONFIG_CGROUP_RDMA
155 void ib_device_register_rdmacg(struct ib_device *device);
156 void ib_device_unregister_rdmacg(struct ib_device *device);
158 int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj,
159 struct ib_device *device,
160 enum rdmacg_resource_type resource_index);
162 void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj,
163 struct ib_device *device,
164 enum rdmacg_resource_type resource_index);
166 static inline void ib_device_register_rdmacg(struct ib_device *device)
170 static inline void ib_device_unregister_rdmacg(struct ib_device *device)
174 static inline int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj,
175 struct ib_device *device,
176 enum rdmacg_resource_type resource_index)
181 static inline void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj,
182 struct ib_device *device,
183 enum rdmacg_resource_type resource_index)
188 static inline bool rdma_is_upper_dev_rcu(struct net_device *dev,
189 struct net_device *upper)
191 return netdev_has_upper_dev_all_rcu(dev, upper);
195 void addr_cleanup(void);
197 int ib_mad_init(void);
198 void ib_mad_cleanup(void);
200 int ib_sa_init(void);
201 void ib_sa_cleanup(void);
203 void rdma_nl_init(void);
204 void rdma_nl_exit(void);
206 int ib_nl_handle_resolve_resp(struct sk_buff *skb,
207 struct nlmsghdr *nlh,
208 struct netlink_ext_ack *extack);
209 int ib_nl_handle_set_timeout(struct sk_buff *skb,
210 struct nlmsghdr *nlh,
211 struct netlink_ext_ack *extack);
212 int ib_nl_handle_ip_res_resp(struct sk_buff *skb,
213 struct nlmsghdr *nlh,
214 struct netlink_ext_ack *extack);
216 int ib_get_cached_subnet_prefix(struct ib_device *device,
220 #ifdef CONFIG_SECURITY_INFINIBAND
221 void ib_security_release_port_pkey_list(struct ib_device *device);
223 void ib_security_cache_change(struct ib_device *device,
227 int ib_security_modify_qp(struct ib_qp *qp,
228 struct ib_qp_attr *qp_attr,
230 struct ib_udata *udata);
232 int ib_create_qp_security(struct ib_qp *qp, struct ib_device *dev);
233 void ib_destroy_qp_security_begin(struct ib_qp_security *sec);
234 void ib_destroy_qp_security_abort(struct ib_qp_security *sec);
235 void ib_destroy_qp_security_end(struct ib_qp_security *sec);
236 int ib_open_shared_qp_security(struct ib_qp *qp, struct ib_device *dev);
237 void ib_close_shared_qp_security(struct ib_qp_security *sec);
238 int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
239 enum ib_qp_type qp_type);
240 void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent);
241 int ib_mad_enforce_security(struct ib_mad_agent_private *map, u16 pkey_index);
242 void ib_mad_agent_security_change(void);
244 static inline void ib_security_release_port_pkey_list(struct ib_device *device)
248 static inline void ib_security_cache_change(struct ib_device *device,
254 static inline int ib_security_modify_qp(struct ib_qp *qp,
255 struct ib_qp_attr *qp_attr,
257 struct ib_udata *udata)
259 return qp->device->ops.modify_qp(qp->real_qp,
265 static inline int ib_create_qp_security(struct ib_qp *qp,
266 struct ib_device *dev)
271 static inline void ib_destroy_qp_security_begin(struct ib_qp_security *sec)
275 static inline void ib_destroy_qp_security_abort(struct ib_qp_security *sec)
279 static inline void ib_destroy_qp_security_end(struct ib_qp_security *sec)
283 static inline int ib_open_shared_qp_security(struct ib_qp *qp,
284 struct ib_device *dev)
289 static inline void ib_close_shared_qp_security(struct ib_qp_security *sec)
293 static inline int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
294 enum ib_qp_type qp_type)
299 static inline void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent)
303 static inline int ib_mad_enforce_security(struct ib_mad_agent_private *map,
309 static inline void ib_mad_agent_security_change(void)
314 struct ib_device *ib_device_get_by_index(const struct net *net, u32 index);
316 /* RDMA device netlink */
317 void nldev_init(void);
318 void nldev_exit(void);
320 static inline struct ib_qp *_ib_create_qp(struct ib_device *dev,
322 struct ib_qp_init_attr *attr,
323 struct ib_udata *udata,
324 struct ib_uqp_object *uobj)
326 enum ib_qp_type qp_type = attr->qp_type;
330 if (!dev->ops.create_qp)
331 return ERR_PTR(-EOPNOTSUPP);
333 qp = dev->ops.create_qp(pd, attr, udata);
342 qp->qp_type = attr->qp_type;
343 qp->rwq_ind_tbl = attr->rwq_ind_tbl;
344 qp->send_cq = attr->send_cq;
345 qp->recv_cq = attr->recv_cq;
347 qp->rwq_ind_tbl = attr->rwq_ind_tbl;
348 qp->event_handler = attr->event_handler;
350 atomic_set(&qp->usecnt, 0);
351 spin_lock_init(&qp->mr_lock);
352 INIT_LIST_HEAD(&qp->rdma_mrs);
353 INIT_LIST_HEAD(&qp->sig_mrs);
356 * We don't track XRC QPs for now, because they don't have PD
357 * and more importantly they are created internaly by driver,
358 * see mlx5 create_dev_resources() as an example.
360 is_xrc = qp_type == IB_QPT_XRC_INI || qp_type == IB_QPT_XRC_TGT;
361 if ((qp_type < IB_QPT_MAX && !is_xrc) || qp_type == IB_QPT_DRIVER) {
362 qp->res.type = RDMA_RESTRACK_QP;
364 rdma_restrack_uadd(&qp->res);
366 rdma_restrack_kadd(&qp->res);
368 qp->res.valid = false;
373 struct rdma_dev_addr;
374 int rdma_resolve_ip_route(struct sockaddr *src_addr,
375 const struct sockaddr *dst_addr,
376 struct rdma_dev_addr *addr);
378 int rdma_addr_find_l2_eth_by_grh(const union ib_gid *sgid,
379 const union ib_gid *dgid,
380 u8 *dmac, const struct ib_gid_attr *sgid_attr,
382 void rdma_copy_src_l2_addr(struct rdma_dev_addr *dev_addr,
383 const struct net_device *dev);
386 int roce_resolve_route_from_path(struct sa_path_rec *rec,
387 const struct ib_gid_attr *attr);
389 struct net_device *rdma_read_gid_attr_ndev_rcu(const struct ib_gid_attr *attr);
391 void ib_free_port_attrs(struct ib_core_device *coredev);
392 int ib_setup_port_attrs(struct ib_core_device *coredev);
394 int rdma_compatdev_set(u8 enable);
396 int ib_port_register_module_stat(struct ib_device *device, u8 port_num,
397 struct kobject *kobj, struct kobj_type *ktype,
399 void ib_port_unregister_module_stat(struct kobject *kobj);
401 int ib_device_set_netns_put(struct sk_buff *skb,
402 struct ib_device *dev, u32 ns_fd);
404 int rdma_nl_net_init(struct rdma_dev_net *rnet);
405 void rdma_nl_net_exit(struct rdma_dev_net *rnet);
407 struct rdma_umap_priv {
408 struct vm_area_struct *vma;
409 struct list_head list;
410 struct rdma_user_mmap_entry *entry;
413 void rdma_umap_priv_init(struct rdma_umap_priv *priv,
414 struct vm_area_struct *vma,
415 struct rdma_user_mmap_entry *entry);
417 #endif /* _CORE_PRIV_H */