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>
49 /* Total number of ports combined across all struct ib_devices's */
50 #define RDMA_MAX_PORTS 8192
52 struct pkey_index_qp_list {
53 struct list_head pkey_index_list;
55 /* Lock to hold while iterating the qp_list. */
56 spinlock_t qp_list_lock;
57 struct list_head qp_list;
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.
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;
76 static inline struct rdma_dev_net *rdma_net_to_dev_net(struct net *net)
78 return net_generic(net, rdma_dev_net_id);
81 int ib_device_register_sysfs(struct ib_device *device);
82 void ib_device_unregister_sysfs(struct ib_device *device);
83 int ib_device_rename(struct ib_device *ibdev, const char *name);
84 int ib_device_set_dim(struct ib_device *ibdev, u8 use_dim);
86 typedef void (*roce_netdev_callback)(struct ib_device *device, u8 port,
87 struct net_device *idev, void *cookie);
89 typedef bool (*roce_netdev_filter)(struct ib_device *device, u8 port,
90 struct net_device *idev, void *cookie);
92 struct net_device *ib_device_get_netdev(struct ib_device *ib_dev,
95 void ib_enum_roce_netdev(struct ib_device *ib_dev,
96 roce_netdev_filter filter,
98 roce_netdev_callback cb,
100 void ib_enum_all_roce_netdevs(roce_netdev_filter filter,
102 roce_netdev_callback cb,
105 typedef int (*nldev_callback)(struct ib_device *device,
107 struct netlink_callback *cb,
110 int ib_enum_all_devs(nldev_callback nldev_cb, struct sk_buff *skb,
111 struct netlink_callback *cb);
113 struct ib_client_nl_info {
114 struct sk_buff *nl_msg;
119 int ib_get_client_nl_info(struct ib_device *ibdev, const char *client_name,
120 struct ib_client_nl_info *res);
122 enum ib_cache_gid_default_mode {
123 IB_CACHE_GID_DEFAULT_MODE_SET,
124 IB_CACHE_GID_DEFAULT_MODE_DELETE
127 int ib_cache_gid_parse_type_str(const char *buf);
129 const char *ib_cache_gid_type_str(enum ib_gid_type gid_type);
131 void ib_cache_gid_set_default_gid(struct ib_device *ib_dev, u8 port,
132 struct net_device *ndev,
133 unsigned long gid_type_mask,
134 enum ib_cache_gid_default_mode mode);
136 int ib_cache_gid_add(struct ib_device *ib_dev, u8 port,
137 union ib_gid *gid, struct ib_gid_attr *attr);
139 int ib_cache_gid_del(struct ib_device *ib_dev, u8 port,
140 union ib_gid *gid, struct ib_gid_attr *attr);
142 int ib_cache_gid_del_all_netdev_gids(struct ib_device *ib_dev, u8 port,
143 struct net_device *ndev);
145 int roce_gid_mgmt_init(void);
146 void roce_gid_mgmt_cleanup(void);
148 unsigned long roce_gid_type_mask_support(struct ib_device *ib_dev, u8 port);
150 int ib_cache_setup_one(struct ib_device *device);
151 void ib_cache_cleanup_one(struct ib_device *device);
152 void ib_cache_release_one(struct ib_device *device);
153 void ib_dispatch_event_clients(struct ib_event *event);
155 #ifdef CONFIG_CGROUP_RDMA
156 void ib_device_register_rdmacg(struct ib_device *device);
157 void ib_device_unregister_rdmacg(struct ib_device *device);
159 int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj,
160 struct ib_device *device,
161 enum rdmacg_resource_type resource_index);
163 void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj,
164 struct ib_device *device,
165 enum rdmacg_resource_type resource_index);
167 static inline void ib_device_register_rdmacg(struct ib_device *device)
171 static inline void ib_device_unregister_rdmacg(struct ib_device *device)
175 static inline int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj,
176 struct ib_device *device,
177 enum rdmacg_resource_type resource_index)
182 static inline void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj,
183 struct ib_device *device,
184 enum rdmacg_resource_type resource_index)
189 static inline bool rdma_is_upper_dev_rcu(struct net_device *dev,
190 struct net_device *upper)
192 return netdev_has_upper_dev_all_rcu(dev, upper);
196 void addr_cleanup(void);
198 int ib_mad_init(void);
199 void ib_mad_cleanup(void);
201 int ib_sa_init(void);
202 void ib_sa_cleanup(void);
204 void rdma_nl_init(void);
205 void rdma_nl_exit(void);
207 int ib_nl_handle_resolve_resp(struct sk_buff *skb,
208 struct nlmsghdr *nlh,
209 struct netlink_ext_ack *extack);
210 int ib_nl_handle_set_timeout(struct sk_buff *skb,
211 struct nlmsghdr *nlh,
212 struct netlink_ext_ack *extack);
213 int ib_nl_handle_ip_res_resp(struct sk_buff *skb,
214 struct nlmsghdr *nlh,
215 struct netlink_ext_ack *extack);
217 int ib_get_cached_subnet_prefix(struct ib_device *device,
221 #ifdef CONFIG_SECURITY_INFINIBAND
222 void ib_security_release_port_pkey_list(struct ib_device *device);
224 void ib_security_cache_change(struct ib_device *device,
228 int ib_security_modify_qp(struct ib_qp *qp,
229 struct ib_qp_attr *qp_attr,
231 struct ib_udata *udata);
233 int ib_create_qp_security(struct ib_qp *qp, struct ib_device *dev);
234 void ib_destroy_qp_security_begin(struct ib_qp_security *sec);
235 void ib_destroy_qp_security_abort(struct ib_qp_security *sec);
236 void ib_destroy_qp_security_end(struct ib_qp_security *sec);
237 int ib_open_shared_qp_security(struct ib_qp *qp, struct ib_device *dev);
238 void ib_close_shared_qp_security(struct ib_qp_security *sec);
239 int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
240 enum ib_qp_type qp_type);
241 void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent);
242 int ib_mad_enforce_security(struct ib_mad_agent_private *map, u16 pkey_index);
243 void ib_mad_agent_security_change(void);
245 static inline void ib_security_release_port_pkey_list(struct ib_device *device)
249 static inline void ib_security_cache_change(struct ib_device *device,
255 static inline int ib_security_modify_qp(struct ib_qp *qp,
256 struct ib_qp_attr *qp_attr,
258 struct ib_udata *udata)
260 return qp->device->ops.modify_qp(qp->real_qp,
266 static inline int ib_create_qp_security(struct ib_qp *qp,
267 struct ib_device *dev)
272 static inline void ib_destroy_qp_security_begin(struct ib_qp_security *sec)
276 static inline void ib_destroy_qp_security_abort(struct ib_qp_security *sec)
280 static inline void ib_destroy_qp_security_end(struct ib_qp_security *sec)
284 static inline int ib_open_shared_qp_security(struct ib_qp *qp,
285 struct ib_device *dev)
290 static inline void ib_close_shared_qp_security(struct ib_qp_security *sec)
294 static inline int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
295 enum ib_qp_type qp_type)
300 static inline void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent)
304 static inline int ib_mad_enforce_security(struct ib_mad_agent_private *map,
310 static inline void ib_mad_agent_security_change(void)
315 struct ib_device *ib_device_get_by_index(const struct net *net, u32 index);
317 /* RDMA device netlink */
318 void nldev_init(void);
319 void nldev_exit(void);
321 static inline struct ib_qp *_ib_create_qp(struct ib_device *dev,
323 struct ib_qp_init_attr *attr,
324 struct ib_udata *udata,
325 struct ib_uqp_object *uobj)
327 enum ib_qp_type qp_type = attr->qp_type;
331 if (!dev->ops.create_qp)
332 return ERR_PTR(-EOPNOTSUPP);
334 qp = dev->ops.create_qp(pd, attr, udata);
343 qp->qp_type = attr->qp_type;
344 qp->rwq_ind_tbl = attr->rwq_ind_tbl;
345 qp->send_cq = attr->send_cq;
346 qp->recv_cq = attr->recv_cq;
348 qp->rwq_ind_tbl = attr->rwq_ind_tbl;
349 qp->event_handler = attr->event_handler;
351 atomic_set(&qp->usecnt, 0);
352 spin_lock_init(&qp->mr_lock);
353 INIT_LIST_HEAD(&qp->rdma_mrs);
354 INIT_LIST_HEAD(&qp->sig_mrs);
356 rdma_restrack_new(&qp->res, RDMA_RESTRACK_QP);
358 * We don't track XRC QPs for now, because they don't have PD
359 * and more importantly they are created internaly by driver,
360 * see mlx5 create_dev_resources() as an example.
362 is_xrc = qp_type == IB_QPT_XRC_INI || qp_type == IB_QPT_XRC_TGT;
363 if ((qp_type < IB_QPT_MAX && !is_xrc) || qp_type == IB_QPT_DRIVER) {
364 rdma_restrack_parent_name(&qp->res, &pd->res);
365 rdma_restrack_add(&qp->res);
370 struct rdma_dev_addr;
371 int rdma_resolve_ip_route(struct sockaddr *src_addr,
372 const struct sockaddr *dst_addr,
373 struct rdma_dev_addr *addr);
375 int rdma_addr_find_l2_eth_by_grh(const union ib_gid *sgid,
376 const union ib_gid *dgid,
377 u8 *dmac, const struct ib_gid_attr *sgid_attr,
379 void rdma_copy_src_l2_addr(struct rdma_dev_addr *dev_addr,
380 const struct net_device *dev);
383 int roce_resolve_route_from_path(struct sa_path_rec *rec,
384 const struct ib_gid_attr *attr);
386 struct net_device *rdma_read_gid_attr_ndev_rcu(const struct ib_gid_attr *attr);
388 void ib_free_port_attrs(struct ib_core_device *coredev);
389 int ib_setup_port_attrs(struct ib_core_device *coredev);
391 int rdma_compatdev_set(u8 enable);
393 int ib_port_register_module_stat(struct ib_device *device, u8 port_num,
394 struct kobject *kobj, struct kobj_type *ktype,
396 void ib_port_unregister_module_stat(struct kobject *kobj);
398 int ib_device_set_netns_put(struct sk_buff *skb,
399 struct ib_device *dev, u32 ns_fd);
401 int rdma_nl_net_init(struct rdma_dev_net *rnet);
402 void rdma_nl_net_exit(struct rdma_dev_net *rnet);
404 struct rdma_umap_priv {
405 struct vm_area_struct *vma;
406 struct list_head list;
407 struct rdma_user_mmap_entry *entry;
410 void rdma_umap_priv_init(struct rdma_umap_priv *priv,
411 struct vm_area_struct *vma,
412 struct rdma_user_mmap_entry *entry);
414 void ib_cq_pool_init(struct ib_device *dev);
415 void ib_cq_pool_destroy(struct ib_device *dev);
417 #endif /* _CORE_PRIV_H */