Lines Matching defs:devlink
9 #include <trace/events/devlink.h>
19 void *devlink_priv(struct devlink *devlink)
21 return &devlink->priv;
25 struct devlink *priv_to_devlink(void *priv)
27 return container_of(priv, struct devlink, priv);
31 struct device *devlink_to_dev(const struct devlink *devlink)
33 return devlink->dev;
37 struct net *devlink_net(const struct devlink *devlink)
39 return read_pnet(&devlink->_net);
43 void devl_assert_locked(struct devlink *devlink)
45 lockdep_assert_held(&devlink->lock);
51 bool devl_lock_is_held(struct devlink *devlink)
53 return lockdep_is_held(&devlink->lock);
58 void devl_lock(struct devlink *devlink)
60 mutex_lock(&devlink->lock);
64 int devl_trylock(struct devlink *devlink)
66 return mutex_trylock(&devlink->lock);
70 void devl_unlock(struct devlink *devlink)
72 mutex_unlock(&devlink->lock);
77 * devlink_try_get() - try to obtain a reference on a devlink instance
78 * @devlink: instance to reference
80 * Obtain a reference on a devlink instance. A reference on a devlink instance
85 struct devlink *__must_check devlink_try_get(struct devlink *devlink)
87 if (refcount_inc_not_zero(&devlink->refcount))
88 return devlink;
94 struct devlink *devlink;
96 devlink = container_of(to_rcu_work(work), struct devlink, rwork);
98 mutex_destroy(&devlink->lock);
99 lockdep_unregister_key(&devlink->lock_key);
100 kfree(devlink);
103 void devlink_put(struct devlink *devlink)
105 if (refcount_dec_and_test(&devlink->refcount))
106 queue_rcu_work(system_wq, &devlink->rwork);
109 struct devlink *devlinks_xa_find_get(struct net *net, unsigned long *indexp)
111 struct devlink *devlink = NULL;
115 devlink = xa_find(&devlinks, indexp, ULONG_MAX, DEVLINK_REGISTERED);
116 if (!devlink)
119 if (!devlink_try_get(devlink))
121 if (!net_eq(devlink_net(devlink), net)) {
122 devlink_put(devlink);
127 return devlink;
135 * devl_register - Register devlink instance
136 * @devlink: devlink
138 int devl_register(struct devlink *devlink)
140 ASSERT_DEVLINK_NOT_REGISTERED(devlink);
141 devl_assert_locked(devlink);
143 xa_set_mark(&devlinks, devlink->index, DEVLINK_REGISTERED);
144 devlink_notify_register(devlink);
150 void devlink_register(struct devlink *devlink)
152 devl_lock(devlink);
153 devl_register(devlink);
154 devl_unlock(devlink);
159 * devl_unregister - Unregister devlink instance
160 * @devlink: devlink
162 void devl_unregister(struct devlink *devlink)
164 ASSERT_DEVLINK_REGISTERED(devlink);
165 devl_assert_locked(devlink);
167 devlink_notify_unregister(devlink);
168 xa_clear_mark(&devlinks, devlink->index, DEVLINK_REGISTERED);
172 void devlink_unregister(struct devlink *devlink)
174 devl_lock(devlink);
175 devl_unregister(devlink);
176 devl_unlock(devlink);
181 * devlink_alloc_ns - Allocate new devlink instance resources
189 * Allocate new devlink instance resources, including devlink index
192 struct devlink *devlink_alloc_ns(const struct devlink_ops *ops,
196 struct devlink *devlink;
204 devlink = kzalloc(sizeof(*devlink) + priv_size, GFP_KERNEL);
205 if (!devlink)
208 ret = xa_alloc_cyclic(&devlinks, &devlink->index, devlink, xa_limit_31b,
213 devlink->dev = dev;
214 devlink->ops = ops;
215 xa_init_flags(&devlink->ports, XA_FLAGS_ALLOC);
216 xa_init_flags(&devlink->params, XA_FLAGS_ALLOC);
217 xa_init_flags(&devlink->snapshot_ids, XA_FLAGS_ALLOC);
218 write_pnet(&devlink->_net, net);
219 INIT_LIST_HEAD(&devlink->rate_list);
220 INIT_LIST_HEAD(&devlink->linecard_list);
221 INIT_LIST_HEAD(&devlink->sb_list);
222 INIT_LIST_HEAD_RCU(&devlink->dpipe_table_list);
223 INIT_LIST_HEAD(&devlink->resource_list);
224 INIT_LIST_HEAD(&devlink->region_list);
225 INIT_LIST_HEAD(&devlink->reporter_list);
226 INIT_LIST_HEAD(&devlink->trap_list);
227 INIT_LIST_HEAD(&devlink->trap_group_list);
228 INIT_LIST_HEAD(&devlink->trap_policer_list);
229 INIT_RCU_WORK(&devlink->rwork, devlink_release);
230 lockdep_register_key(&devlink->lock_key);
231 mutex_init(&devlink->lock);
232 lockdep_set_class(&devlink->lock, &devlink->lock_key);
233 refcount_set(&devlink->refcount, 1);
235 return devlink;
238 kfree(devlink);
244 * devlink_free - Free devlink instance resources
246 * @devlink: devlink
248 void devlink_free(struct devlink *devlink)
250 ASSERT_DEVLINK_NOT_REGISTERED(devlink);
252 WARN_ON(!list_empty(&devlink->trap_policer_list));
253 WARN_ON(!list_empty(&devlink->trap_group_list));
254 WARN_ON(!list_empty(&devlink->trap_list));
255 WARN_ON(!list_empty(&devlink->reporter_list));
256 WARN_ON(!list_empty(&devlink->region_list));
257 WARN_ON(!list_empty(&devlink->resource_list));
258 WARN_ON(!list_empty(&devlink->dpipe_table_list));
259 WARN_ON(!list_empty(&devlink->sb_list));
260 WARN_ON(!list_empty(&devlink->rate_list));
261 WARN_ON(!list_empty(&devlink->linecard_list));
262 WARN_ON(!xa_empty(&devlink->ports));
264 xa_destroy(&devlink->snapshot_ids);
265 xa_destroy(&devlink->params);
266 xa_destroy(&devlink->ports);
268 xa_erase(&devlinks, devlink->index);
270 devlink_put(devlink);
276 struct devlink *devlink;
282 * all devlink instances from this namespace into init_net.
284 devlinks_xa_for_each_registered_get(net, index, devlink) {
285 devl_lock(devlink);
287 if (devl_is_registered(devlink))
288 err = devlink_reload(devlink, &init_net,
292 devl_unlock(devlink);
293 devlink_put(devlink);
295 pr_warn("Failed to reload devlink instance into init_net\n");