forked from luck/tmp_suning_uos_patched
ea77f12f2c
Due to the way the tasklets work in mac80211 there's no need to ever disable them. However, we need to clear the pending packets when taking down the last interface because otherwise the tx_pending_tasklet might be queued if the driver mucks with the queues (which it shouldn't). I've had a situation occasionally with ar9170 in which ksoftirq was using 100% CPU time because a disabled tasklet was scheduled, and I think that was due to ar9170 receiving a packet while the tasklet was disabled. That's strange and it really should not do that for other reasons, but there's no need to waste that much CPU time over it, it should just warn instead. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
261 lines
6.7 KiB
C
261 lines
6.7 KiB
C
#ifndef __MAC80211_DRIVER_OPS
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#define __MAC80211_DRIVER_OPS
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#include <net/mac80211.h>
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#include "ieee80211_i.h"
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#include "driver-trace.h"
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static inline int drv_tx(struct ieee80211_local *local, struct sk_buff *skb)
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{
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return local->ops->tx(&local->hw, skb);
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}
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static inline int drv_start(struct ieee80211_local *local)
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{
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int ret;
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local->started = true;
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smp_mb();
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ret = local->ops->start(&local->hw);
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trace_drv_start(local, ret);
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return ret;
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}
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static inline void drv_stop(struct ieee80211_local *local)
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{
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local->ops->stop(&local->hw);
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trace_drv_stop(local);
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/* sync away all work on the tasklet before clearing started */
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tasklet_disable(&local->tasklet);
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tasklet_enable(&local->tasklet);
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barrier();
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local->started = false;
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}
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static inline int drv_add_interface(struct ieee80211_local *local,
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struct ieee80211_if_init_conf *conf)
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{
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int ret = local->ops->add_interface(&local->hw, conf);
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trace_drv_add_interface(local, conf->mac_addr, conf->vif, ret);
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return ret;
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}
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static inline void drv_remove_interface(struct ieee80211_local *local,
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struct ieee80211_if_init_conf *conf)
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{
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local->ops->remove_interface(&local->hw, conf);
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trace_drv_remove_interface(local, conf->mac_addr, conf->vif);
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}
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static inline int drv_config(struct ieee80211_local *local, u32 changed)
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{
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int ret = local->ops->config(&local->hw, changed);
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trace_drv_config(local, changed, ret);
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return ret;
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}
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static inline void drv_bss_info_changed(struct ieee80211_local *local,
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struct ieee80211_vif *vif,
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struct ieee80211_bss_conf *info,
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u32 changed)
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{
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if (local->ops->bss_info_changed)
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local->ops->bss_info_changed(&local->hw, vif, info, changed);
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trace_drv_bss_info_changed(local, vif, info, changed);
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}
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static inline u64 drv_prepare_multicast(struct ieee80211_local *local,
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int mc_count,
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struct dev_addr_list *mc_list)
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{
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u64 ret = 0;
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if (local->ops->prepare_multicast)
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ret = local->ops->prepare_multicast(&local->hw, mc_count,
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mc_list);
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trace_drv_prepare_multicast(local, mc_count, ret);
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return ret;
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}
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static inline void drv_configure_filter(struct ieee80211_local *local,
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unsigned int changed_flags,
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unsigned int *total_flags,
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u64 multicast)
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{
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might_sleep();
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local->ops->configure_filter(&local->hw, changed_flags, total_flags,
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multicast);
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trace_drv_configure_filter(local, changed_flags, total_flags,
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multicast);
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}
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static inline int drv_set_tim(struct ieee80211_local *local,
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struct ieee80211_sta *sta, bool set)
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{
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int ret = 0;
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if (local->ops->set_tim)
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ret = local->ops->set_tim(&local->hw, sta, set);
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trace_drv_set_tim(local, sta, set, ret);
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return ret;
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}
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static inline int drv_set_key(struct ieee80211_local *local,
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enum set_key_cmd cmd, struct ieee80211_vif *vif,
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struct ieee80211_sta *sta,
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struct ieee80211_key_conf *key)
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{
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int ret = local->ops->set_key(&local->hw, cmd, vif, sta, key);
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trace_drv_set_key(local, cmd, vif, sta, key, ret);
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return ret;
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}
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static inline void drv_update_tkip_key(struct ieee80211_local *local,
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struct ieee80211_key_conf *conf,
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const u8 *address, u32 iv32,
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u16 *phase1key)
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{
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if (local->ops->update_tkip_key)
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local->ops->update_tkip_key(&local->hw, conf, address,
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iv32, phase1key);
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trace_drv_update_tkip_key(local, conf, address, iv32);
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}
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static inline int drv_hw_scan(struct ieee80211_local *local,
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struct cfg80211_scan_request *req)
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{
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int ret = local->ops->hw_scan(&local->hw, req);
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trace_drv_hw_scan(local, req, ret);
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return ret;
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}
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static inline void drv_sw_scan_start(struct ieee80211_local *local)
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{
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if (local->ops->sw_scan_start)
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local->ops->sw_scan_start(&local->hw);
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trace_drv_sw_scan_start(local);
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}
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static inline void drv_sw_scan_complete(struct ieee80211_local *local)
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{
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if (local->ops->sw_scan_complete)
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local->ops->sw_scan_complete(&local->hw);
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trace_drv_sw_scan_complete(local);
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}
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static inline int drv_get_stats(struct ieee80211_local *local,
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struct ieee80211_low_level_stats *stats)
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{
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int ret = -EOPNOTSUPP;
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if (local->ops->get_stats)
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ret = local->ops->get_stats(&local->hw, stats);
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trace_drv_get_stats(local, stats, ret);
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return ret;
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}
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static inline void drv_get_tkip_seq(struct ieee80211_local *local,
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u8 hw_key_idx, u32 *iv32, u16 *iv16)
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{
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if (local->ops->get_tkip_seq)
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local->ops->get_tkip_seq(&local->hw, hw_key_idx, iv32, iv16);
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trace_drv_get_tkip_seq(local, hw_key_idx, iv32, iv16);
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}
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static inline int drv_set_rts_threshold(struct ieee80211_local *local,
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u32 value)
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{
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int ret = 0;
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if (local->ops->set_rts_threshold)
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ret = local->ops->set_rts_threshold(&local->hw, value);
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trace_drv_set_rts_threshold(local, value, ret);
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return ret;
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}
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static inline void drv_sta_notify(struct ieee80211_local *local,
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struct ieee80211_vif *vif,
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enum sta_notify_cmd cmd,
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struct ieee80211_sta *sta)
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{
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if (local->ops->sta_notify)
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local->ops->sta_notify(&local->hw, vif, cmd, sta);
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trace_drv_sta_notify(local, vif, cmd, sta);
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}
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static inline int drv_conf_tx(struct ieee80211_local *local, u16 queue,
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const struct ieee80211_tx_queue_params *params)
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{
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int ret = -EOPNOTSUPP;
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if (local->ops->conf_tx)
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ret = local->ops->conf_tx(&local->hw, queue, params);
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trace_drv_conf_tx(local, queue, params, ret);
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return ret;
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}
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static inline int drv_get_tx_stats(struct ieee80211_local *local,
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struct ieee80211_tx_queue_stats *stats)
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{
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int ret = local->ops->get_tx_stats(&local->hw, stats);
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trace_drv_get_tx_stats(local, stats, ret);
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return ret;
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}
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static inline u64 drv_get_tsf(struct ieee80211_local *local)
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{
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u64 ret = -1ULL;
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if (local->ops->get_tsf)
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ret = local->ops->get_tsf(&local->hw);
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trace_drv_get_tsf(local, ret);
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return ret;
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}
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static inline void drv_set_tsf(struct ieee80211_local *local, u64 tsf)
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{
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if (local->ops->set_tsf)
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local->ops->set_tsf(&local->hw, tsf);
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trace_drv_set_tsf(local, tsf);
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}
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static inline void drv_reset_tsf(struct ieee80211_local *local)
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{
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if (local->ops->reset_tsf)
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local->ops->reset_tsf(&local->hw);
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trace_drv_reset_tsf(local);
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}
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static inline int drv_tx_last_beacon(struct ieee80211_local *local)
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{
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int ret = 1;
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if (local->ops->tx_last_beacon)
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ret = local->ops->tx_last_beacon(&local->hw);
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trace_drv_tx_last_beacon(local, ret);
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return ret;
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}
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static inline int drv_ampdu_action(struct ieee80211_local *local,
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enum ieee80211_ampdu_mlme_action action,
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struct ieee80211_sta *sta, u16 tid,
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u16 *ssn)
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{
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int ret = -EOPNOTSUPP;
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if (local->ops->ampdu_action)
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ret = local->ops->ampdu_action(&local->hw, action,
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sta, tid, ssn);
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trace_drv_ampdu_action(local, action, sta, tid, ssn, ret);
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return ret;
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}
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static inline void drv_rfkill_poll(struct ieee80211_local *local)
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{
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if (local->ops->rfkill_poll)
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local->ops->rfkill_poll(&local->hw);
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}
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#endif /* __MAC80211_DRIVER_OPS */
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