diff options
Diffstat (limited to 'net/sched/act_mirred.c')
| -rw-r--r-- | net/sched/act_mirred.c | 68 |
1 files changed, 60 insertions, 8 deletions
diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c index efc963ab995a..39acd1d18609 100644 --- a/net/sched/act_mirred.c +++ b/net/sched/act_mirred.c @@ -79,7 +79,7 @@ static void tcf_mirred_release(struct tc_action *a) /* last reference to action, no need to lock */ dev = rcu_dereference_protected(m->tcfm_dev, 1); - dev_put(dev); + dev_put_track(dev, &m->tcfm_dev_tracker); } static const struct nla_policy mirred_policy[TCA_MIRRED_MAX + 1] = { @@ -101,7 +101,6 @@ static int tcf_mirred_init(struct net *net, struct nlattr *nla, bool mac_header_xmit = false; struct tc_mirred *parm; struct tcf_mirred *m; - struct net_device *dev; bool exists = false; int ret, err; u32 index; @@ -171,16 +170,19 @@ static int tcf_mirred_init(struct net *net, struct nlattr *nla, spin_lock_bh(&m->tcf_lock); if (parm->ifindex) { - dev = dev_get_by_index(net, parm->ifindex); - if (!dev) { + struct net_device *odev, *ndev; + + ndev = dev_get_by_index(net, parm->ifindex); + if (!ndev) { spin_unlock_bh(&m->tcf_lock); err = -ENODEV; goto put_chain; } - mac_header_xmit = dev_is_mac_header_xmit(dev); - dev = rcu_replace_pointer(m->tcfm_dev, dev, + mac_header_xmit = dev_is_mac_header_xmit(ndev); + odev = rcu_replace_pointer(m->tcfm_dev, ndev, lockdep_is_held(&m->tcf_lock)); - dev_put(dev); + dev_put_track(odev, &m->tcfm_dev_tracker); + netdev_tracker_alloc(ndev, &m->tcfm_dev_tracker, GFP_ATOMIC); m->tcfm_mac_header_xmit = mac_header_xmit; } goto_ch = tcf_action_set_ctrlact(*a, parm->action, goto_ch); @@ -400,7 +402,7 @@ static int mirred_device_event(struct notifier_block *unused, list_for_each_entry(m, &mirred_list, tcfm_list) { spin_lock_bh(&m->tcf_lock); if (tcf_mirred_dev_dereference(m) == dev) { - dev_put(dev); + dev_put_track(dev, &m->tcfm_dev_tracker); /* Note : no rcu grace period necessary, as * net_device are already rcu protected. */ @@ -448,6 +450,55 @@ static size_t tcf_mirred_get_fill_size(const struct tc_action *act) return nla_total_size(sizeof(struct tc_mirred)); } +static void tcf_offload_mirred_get_dev(struct flow_action_entry *entry, + const struct tc_action *act) +{ + entry->dev = act->ops->get_dev(act, &entry->destructor); + if (!entry->dev) + return; + entry->destructor_priv = entry->dev; +} + +static int tcf_mirred_offload_act_setup(struct tc_action *act, void *entry_data, + u32 *index_inc, bool bind) +{ + if (bind) { + struct flow_action_entry *entry = entry_data; + + if (is_tcf_mirred_egress_redirect(act)) { + entry->id = FLOW_ACTION_REDIRECT; + tcf_offload_mirred_get_dev(entry, act); + } else if (is_tcf_mirred_egress_mirror(act)) { + entry->id = FLOW_ACTION_MIRRED; + tcf_offload_mirred_get_dev(entry, act); + } else if (is_tcf_mirred_ingress_redirect(act)) { + entry->id = FLOW_ACTION_REDIRECT_INGRESS; + tcf_offload_mirred_get_dev(entry, act); + } else if (is_tcf_mirred_ingress_mirror(act)) { + entry->id = FLOW_ACTION_MIRRED_INGRESS; + tcf_offload_mirred_get_dev(entry, act); + } else { + return -EOPNOTSUPP; + } + *index_inc = 1; + } else { + struct flow_offload_action *fl_action = entry_data; + + if (is_tcf_mirred_egress_redirect(act)) + fl_action->id = FLOW_ACTION_REDIRECT; + else if (is_tcf_mirred_egress_mirror(act)) + fl_action->id = FLOW_ACTION_MIRRED; + else if (is_tcf_mirred_ingress_redirect(act)) + fl_action->id = FLOW_ACTION_REDIRECT_INGRESS; + else if (is_tcf_mirred_ingress_mirror(act)) + fl_action->id = FLOW_ACTION_MIRRED_INGRESS; + else + return -EOPNOTSUPP; + } + + return 0; +} + static struct tc_action_ops act_mirred_ops = { .kind = "mirred", .id = TCA_ID_MIRRED, @@ -460,6 +511,7 @@ static struct tc_action_ops act_mirred_ops = { .walk = tcf_mirred_walker, .lookup = tcf_mirred_search, .get_fill_size = tcf_mirred_get_fill_size, + .offload_act_setup = tcf_mirred_offload_act_setup, .size = sizeof(struct tcf_mirred), .get_dev = tcf_mirred_get_dev, }; |