core_priv.h

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