diff options
| author | Andrei Otcheretianski <andrei.otcheretianski@intel.com> | 2014-05-25 18:24:22 +0400 |
|---|---|---|
| committer | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2014-07-07 22:41:21 +0400 |
| commit | 003e5236a1fcab3fc4576fe643e31a3d83027256 (patch) | |
| tree | a02e051c9e0833c8e4112df7ab6503b9964a1366 /drivers/net/wireless/iwlwifi/mvm/sta.h | |
| parent | 7f0a7c671cdc0396f99b60b77bd02e2dee7c4838 (diff) | |
| download | linux-003e5236a1fcab3fc4576fe643e31a3d83027256.tar.xz | |
iwlwifi: mvm: Use CS tx block bit for AP/GO
An AP/GO may perform the channel switch slightly before its stations.
This scenario may result in packet loss, since the transmission may start
before the client is actually on a new channel. In order to prevent
potential packet loss disable tx to all the stations when the channel
switch flow starts. Clear the disable_tx bit when a station is seen on a
target channel, or after IWL_MVM_CS_UNBLOCK_TX_TIMEOUT beacons on a new
channel. In addition call ieee80211_sta_block_awake in order to inform
mac80211 that the frames for this station should be buffered.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/sta.h')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/sta.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.h b/drivers/net/wireless/iwlwifi/mvm/sta.h index 10c1a5352651..3b1c8bd6cb54 100644 --- a/drivers/net/wireless/iwlwifi/mvm/sta.h +++ b/drivers/net/wireless/iwlwifi/mvm/sta.h @@ -73,6 +73,7 @@ #include "rs.h" struct iwl_mvm; +struct iwl_mvm_vif; /** * DOC: station table - introduction @@ -295,6 +296,7 @@ static inline u16 iwl_mvm_tid_queued(struct iwl_mvm_tid_data *tid_data) * @tid_data: per tid data. Look at %iwl_mvm_tid_data. * @tx_protection: reference counter for controlling the Tx protection. * @tt_tx_protection: is thermal throttling enable Tx protection? + * @disable_tx: is tx to this STA disabled? * * When mac80211 creates a station it reserves some space (hw->sta_data_size) * in the structure for use by driver. This structure is placed in that @@ -317,6 +319,8 @@ struct iwl_mvm_sta { /* Temporary, until the new TLC will control the Tx protection */ s8 tx_protection; bool tt_tx_protection; + + bool disable_tx; }; static inline struct iwl_mvm_sta * @@ -406,5 +410,11 @@ int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, bool drain); void iwl_mvm_sta_modify_disable_tx(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, bool disable); +void iwl_mvm_sta_modify_disable_tx_ap(struct iwl_mvm *mvm, + struct ieee80211_sta *sta, + bool disable); +void iwl_mvm_modify_all_sta_disable_tx(struct iwl_mvm *mvm, + struct iwl_mvm_vif *mvmvif, + bool disable); #endif /* __sta_h__ */ |