diff options
| -rw-r--r-- | include/net/mac80211.h | 24 | ||||
| -rw-r--r-- | net/mac80211/ieee80211_i.h | 5 | ||||
| -rw-r--r-- | net/mac80211/iface.c | 4 | ||||
| -rw-r--r-- | net/mac80211/main.c | 30 |
4 files changed, 63 insertions, 0 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h index b0787a1dea9..3f1e03b521e 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1102,6 +1102,10 @@ enum ieee80211_hw_flags { * * @max_rates: maximum number of alternate rate retry stages * @max_rate_tries: maximum number of tries for each stage + * + * @napi_weight: weight used for NAPI polling. You must specify an + * appropriate value here if a napi_poll operation is provided + * by your driver. */ struct ieee80211_hw { struct ieee80211_conf conf; @@ -1113,6 +1117,7 @@ struct ieee80211_hw { int channel_change_time; int vif_data_size; int sta_data_size; + int napi_weight; u16 queues; u16 max_listen_interval; s8 max_signal; @@ -1687,6 +1692,8 @@ enum ieee80211_ampdu_mlme_action { * switch operation for CSAs received from the AP may implement this * callback. They must then call ieee80211_chswitch_done() to indicate * completion of the channel switch. + * + * @napi_poll: Poll Rx queue for incoming data frames. */ struct ieee80211_ops { int (*tx)(struct ieee80211_hw *hw, struct sk_buff *skb); @@ -1752,6 +1759,7 @@ struct ieee80211_ops { void (*flush)(struct ieee80211_hw *hw, bool drop); void (*channel_switch)(struct ieee80211_hw *hw, struct ieee80211_channel_switch *ch_switch); + int (*napi_poll)(struct ieee80211_hw *hw, int budget); }; /** @@ -1897,6 +1905,22 @@ void ieee80211_free_hw(struct ieee80211_hw *hw); */ void ieee80211_restart_hw(struct ieee80211_hw *hw); +/** ieee80211_napi_schedule - schedule NAPI poll + * + * Use this function to schedule NAPI polling on a device. + * + * @hw: the hardware to start polling + */ +void ieee80211_napi_schedule(struct ieee80211_hw *hw); + +/** ieee80211_napi_complete - complete NAPI polling + * + * Use this function to finish NAPI polling on a device. + * + * @hw: the hardware to stop polling + */ +void ieee80211_napi_complete(struct ieee80211_hw *hw); + /** * ieee80211_rx - receive frame * diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 65e0ed6c297..79d56454484 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -870,6 +870,11 @@ struct ieee80211_local { struct dentry *keys; } debugfs; #endif + + /* dummy netdev for use w/ NAPI */ + struct net_device napi_dev; + + struct napi_struct napi; }; static inline struct ieee80211_sub_if_data * diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index ebbe264e2b0..c1008a9d7bf 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -187,6 +187,8 @@ static int ieee80211_open(struct net_device *dev) res = drv_start(local); if (res) goto err_del_bss; + if (local->ops->napi_poll) + napi_enable(&local->napi); /* we're brought up, everything changes */ hw_reconf_flags = ~0; ieee80211_led_radio(local, true); @@ -519,6 +521,8 @@ static int ieee80211_stop(struct net_device *dev) ieee80211_recalc_ps(local, -1); if (local->open_count == 0) { + if (local->ops->napi_poll) + napi_disable(&local->napi); ieee80211_clear_tx_pending(local); ieee80211_stop_device(local); diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 798a91b100c..1ed956c9cb8 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -390,6 +390,30 @@ static int ieee80211_ifa_changed(struct notifier_block *nb, } #endif +static int ieee80211_napi_poll(struct napi_struct *napi, int budget) +{ + struct ieee80211_local *local = + container_of(napi, struct ieee80211_local, napi); + + return local->ops->napi_poll(&local->hw, budget); +} + +void ieee80211_napi_schedule(struct ieee80211_hw *hw) +{ + struct ieee80211_local *local = hw_to_local(hw); + + napi_schedule(&local->napi); +} +EXPORT_SYMBOL(ieee80211_napi_schedule); + +void ieee80211_napi_complete(struct ieee80211_hw *hw) +{ + struct ieee80211_local *local = hw_to_local(hw); + + napi_complete(&local->napi); +} +EXPORT_SYMBOL(ieee80211_napi_complete); + struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, const struct ieee80211_ops *ops) { @@ -494,6 +518,9 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, skb_queue_head_init(&local->skb_queue); skb_queue_head_init(&local->skb_queue_unreliable); + /* init dummy netdev for use w/ NAPI */ + init_dummy_netdev(&local->napi_dev); + return local_to_hw(local); } EXPORT_SYMBOL(ieee80211_alloc_hw); @@ -683,6 +710,9 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) goto fail_ifa; #endif + netif_napi_add(&local->napi_dev, &local->napi, ieee80211_napi_poll, + local->hw.napi_weight); + return 0; #ifdef CONFIG_INET |