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https://github.com/torvalds/linux.git
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net/sched: Remove egdev mechanism
The egdev mechanism was replaced by the TC indirect block notifications platform. Signed-off-by: Oz Shlomo <ozsh@mellanox.com> Reviewed-by: Eli Britstein <elibr@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Cc: John Hurley <john.hurley@netronome.com> Cc: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Oz Shlomo
Saeed Mahameed
parent
df2ef3bff1
commit
69bd48404f
3 changed files with 1 additions and 297 deletions
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@ -194,35 +194,5 @@ static inline void tcf_action_stats_update(struct tc_action *a, u64 bytes,
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#endif
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}
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#ifdef CONFIG_NET_CLS_ACT
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int tc_setup_cb_egdev_register(const struct net_device *dev,
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tc_setup_cb_t *cb, void *cb_priv);
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void tc_setup_cb_egdev_unregister(const struct net_device *dev,
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tc_setup_cb_t *cb, void *cb_priv);
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int tc_setup_cb_egdev_call(const struct net_device *dev,
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enum tc_setup_type type, void *type_data,
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bool err_stop);
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#else
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static inline
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int tc_setup_cb_egdev_register(const struct net_device *dev,
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tc_setup_cb_t *cb, void *cb_priv)
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{
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return 0;
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}
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static inline
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void tc_setup_cb_egdev_unregister(const struct net_device *dev,
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tc_setup_cb_t *cb, void *cb_priv)
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{
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}
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static inline
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int tc_setup_cb_egdev_call(const struct net_device *dev,
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enum tc_setup_type type, void *type_data,
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bool err_stop)
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{
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return 0;
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}
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#endif
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#endif
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@ -21,8 +21,6 @@
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#include <linux/kmod.h>
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#include <linux/err.h>
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#include <linux/module.h>
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#include <linux/rhashtable.h>
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#include <linux/list.h>
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#include <net/net_namespace.h>
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#include <net/sock.h>
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#include <net/sch_generic.h>
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@ -1522,227 +1520,8 @@ static int tc_dump_action(struct sk_buff *skb, struct netlink_callback *cb)
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return skb->len;
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}
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struct tcf_action_net {
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struct rhashtable egdev_ht;
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};
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static unsigned int tcf_action_net_id;
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struct tcf_action_egdev_cb {
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struct list_head list;
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tc_setup_cb_t *cb;
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void *cb_priv;
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};
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struct tcf_action_egdev {
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struct rhash_head ht_node;
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const struct net_device *dev;
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unsigned int refcnt;
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struct list_head cb_list;
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};
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static const struct rhashtable_params tcf_action_egdev_ht_params = {
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.key_offset = offsetof(struct tcf_action_egdev, dev),
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.head_offset = offsetof(struct tcf_action_egdev, ht_node),
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.key_len = sizeof(const struct net_device *),
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};
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static struct tcf_action_egdev *
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tcf_action_egdev_lookup(const struct net_device *dev)
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{
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struct net *net = dev_net(dev);
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struct tcf_action_net *tan = net_generic(net, tcf_action_net_id);
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return rhashtable_lookup_fast(&tan->egdev_ht, &dev,
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tcf_action_egdev_ht_params);
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}
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static struct tcf_action_egdev *
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tcf_action_egdev_get(const struct net_device *dev)
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{
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struct tcf_action_egdev *egdev;
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struct tcf_action_net *tan;
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egdev = tcf_action_egdev_lookup(dev);
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if (egdev)
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goto inc_ref;
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egdev = kzalloc(sizeof(*egdev), GFP_KERNEL);
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if (!egdev)
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return NULL;
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INIT_LIST_HEAD(&egdev->cb_list);
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egdev->dev = dev;
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tan = net_generic(dev_net(dev), tcf_action_net_id);
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rhashtable_insert_fast(&tan->egdev_ht, &egdev->ht_node,
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tcf_action_egdev_ht_params);
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inc_ref:
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egdev->refcnt++;
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return egdev;
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}
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static void tcf_action_egdev_put(struct tcf_action_egdev *egdev)
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{
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struct tcf_action_net *tan;
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if (--egdev->refcnt)
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return;
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tan = net_generic(dev_net(egdev->dev), tcf_action_net_id);
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rhashtable_remove_fast(&tan->egdev_ht, &egdev->ht_node,
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tcf_action_egdev_ht_params);
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kfree(egdev);
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}
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static struct tcf_action_egdev_cb *
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tcf_action_egdev_cb_lookup(struct tcf_action_egdev *egdev,
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tc_setup_cb_t *cb, void *cb_priv)
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{
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struct tcf_action_egdev_cb *egdev_cb;
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list_for_each_entry(egdev_cb, &egdev->cb_list, list)
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if (egdev_cb->cb == cb && egdev_cb->cb_priv == cb_priv)
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return egdev_cb;
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return NULL;
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}
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static int tcf_action_egdev_cb_call(struct tcf_action_egdev *egdev,
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enum tc_setup_type type,
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void *type_data, bool err_stop)
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{
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struct tcf_action_egdev_cb *egdev_cb;
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int ok_count = 0;
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int err;
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list_for_each_entry(egdev_cb, &egdev->cb_list, list) {
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err = egdev_cb->cb(type, type_data, egdev_cb->cb_priv);
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if (err) {
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if (err_stop)
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return err;
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} else {
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ok_count++;
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}
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}
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return ok_count;
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}
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static int tcf_action_egdev_cb_add(struct tcf_action_egdev *egdev,
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tc_setup_cb_t *cb, void *cb_priv)
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{
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struct tcf_action_egdev_cb *egdev_cb;
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egdev_cb = tcf_action_egdev_cb_lookup(egdev, cb, cb_priv);
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if (WARN_ON(egdev_cb))
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return -EEXIST;
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egdev_cb = kzalloc(sizeof(*egdev_cb), GFP_KERNEL);
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if (!egdev_cb)
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return -ENOMEM;
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egdev_cb->cb = cb;
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egdev_cb->cb_priv = cb_priv;
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list_add(&egdev_cb->list, &egdev->cb_list);
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return 0;
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}
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static void tcf_action_egdev_cb_del(struct tcf_action_egdev *egdev,
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tc_setup_cb_t *cb, void *cb_priv)
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{
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struct tcf_action_egdev_cb *egdev_cb;
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egdev_cb = tcf_action_egdev_cb_lookup(egdev, cb, cb_priv);
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if (WARN_ON(!egdev_cb))
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return;
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list_del(&egdev_cb->list);
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kfree(egdev_cb);
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}
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static int __tc_setup_cb_egdev_register(const struct net_device *dev,
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tc_setup_cb_t *cb, void *cb_priv)
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{
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struct tcf_action_egdev *egdev = tcf_action_egdev_get(dev);
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int err;
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if (!egdev)
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return -ENOMEM;
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err = tcf_action_egdev_cb_add(egdev, cb, cb_priv);
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if (err)
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goto err_cb_add;
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return 0;
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err_cb_add:
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tcf_action_egdev_put(egdev);
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return err;
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}
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int tc_setup_cb_egdev_register(const struct net_device *dev,
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tc_setup_cb_t *cb, void *cb_priv)
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{
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int err;
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rtnl_lock();
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err = __tc_setup_cb_egdev_register(dev, cb, cb_priv);
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rtnl_unlock();
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return err;
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}
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EXPORT_SYMBOL_GPL(tc_setup_cb_egdev_register);
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static void __tc_setup_cb_egdev_unregister(const struct net_device *dev,
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tc_setup_cb_t *cb, void *cb_priv)
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{
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struct tcf_action_egdev *egdev = tcf_action_egdev_lookup(dev);
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if (WARN_ON(!egdev))
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return;
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tcf_action_egdev_cb_del(egdev, cb, cb_priv);
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tcf_action_egdev_put(egdev);
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}
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void tc_setup_cb_egdev_unregister(const struct net_device *dev,
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tc_setup_cb_t *cb, void *cb_priv)
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{
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rtnl_lock();
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__tc_setup_cb_egdev_unregister(dev, cb, cb_priv);
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rtnl_unlock();
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}
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EXPORT_SYMBOL_GPL(tc_setup_cb_egdev_unregister);
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int tc_setup_cb_egdev_call(const struct net_device *dev,
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enum tc_setup_type type, void *type_data,
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bool err_stop)
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{
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struct tcf_action_egdev *egdev = tcf_action_egdev_lookup(dev);
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if (!egdev)
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return 0;
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return tcf_action_egdev_cb_call(egdev, type, type_data, err_stop);
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}
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EXPORT_SYMBOL_GPL(tc_setup_cb_egdev_call);
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static __net_init int tcf_action_net_init(struct net *net)
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{
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struct tcf_action_net *tan = net_generic(net, tcf_action_net_id);
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return rhashtable_init(&tan->egdev_ht, &tcf_action_egdev_ht_params);
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}
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static void __net_exit tcf_action_net_exit(struct net *net)
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{
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struct tcf_action_net *tan = net_generic(net, tcf_action_net_id);
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rhashtable_destroy(&tan->egdev_ht);
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}
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static struct pernet_operations tcf_action_net_ops = {
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.init = tcf_action_net_init,
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.exit = tcf_action_net_exit,
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.id = &tcf_action_net_id,
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.size = sizeof(struct tcf_action_net),
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};
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static int __init tc_action_init(void)
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{
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int err;
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err = register_pernet_subsys(&tcf_action_net_ops);
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if (err)
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return err;
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rtnl_register(PF_UNSPEC, RTM_NEWACTION, tc_ctl_action, NULL, 0);
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rtnl_register(PF_UNSPEC, RTM_DELACTION, tc_ctl_action, NULL, 0);
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rtnl_register(PF_UNSPEC, RTM_GETACTION, tc_ctl_action, tc_dump_action,
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@ -2515,55 +2515,10 @@ int tcf_exts_dump_stats(struct sk_buff *skb, struct tcf_exts *exts)
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}
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EXPORT_SYMBOL(tcf_exts_dump_stats);
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static int tc_exts_setup_cb_egdev_call(struct tcf_exts *exts,
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enum tc_setup_type type,
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void *type_data, bool err_stop)
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{
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int ok_count = 0;
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#ifdef CONFIG_NET_CLS_ACT
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const struct tc_action *a;
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struct net_device *dev;
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int i, ret;
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if (!tcf_exts_has_actions(exts))
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return 0;
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for (i = 0; i < exts->nr_actions; i++) {
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a = exts->actions[i];
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if (!a->ops->get_dev)
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continue;
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dev = a->ops->get_dev(a);
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if (!dev)
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continue;
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ret = tc_setup_cb_egdev_call(dev, type, type_data, err_stop);
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a->ops->put_dev(dev);
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if (ret < 0)
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return ret;
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ok_count += ret;
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}
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#endif
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return ok_count;
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}
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int tc_setup_cb_call(struct tcf_block *block, struct tcf_exts *exts,
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enum tc_setup_type type, void *type_data, bool err_stop)
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{
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int ok_count;
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int ret;
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ret = tcf_block_cb_call(block, type, type_data, err_stop);
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if (ret < 0)
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return ret;
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ok_count = ret;
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if (!exts || ok_count)
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return ok_count;
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ret = tc_exts_setup_cb_egdev_call(exts, type, type_data, err_stop);
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if (ret < 0)
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return ret;
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ok_count += ret;
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return ok_count;
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return tcf_block_cb_call(block, type, type_data, err_stop);
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}
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EXPORT_SYMBOL(tc_setup_cb_call);
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