diff options
| author | Luciano Coelho <luciano.coelho@intel.com> | 2014-11-10 11:10:17 +0200 |
|---|---|---|
| committer | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2014-11-24 08:30:33 +0200 |
| commit | 622e3f9b71f9a97408cd751851c6588d4e6c4fd0 (patch) | |
| tree | 13f0a088c88040197060719fe7b769cee19499d6 | |
| parent | a57c688d34a05cbc72ec8cf4f05758cbafdd9893 (diff) | |
| download | linux-622e3f9b71f9a97408cd751851c6588d4e6c4fd0.tar.bz2 | |
iwlwifi: mvm: add a channel_switch op to bypass mac80211 timer
We need to call ieee80211_chswitch_done() ourselves just when the
absence TE started, so we perform the actual context switch early
enough. To do so, add a dummy channel_switch op, which will cause
mac80211 to skip the countdown timer and allow us to call
ieee80211_chswitch_done() to complete the operation.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/mac80211.c | 15 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/time-event.c | 1 |
2 files changed, 16 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c index c85c0f12867a..7acdfa700ec1 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c @@ -3143,6 +3143,20 @@ static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, } #endif +static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_channel_switch *chsw) +{ + /* By implementing this operation, we prevent mac80211 from + * starting its own channel switch timer, so that we can call + * ieee80211_chswitch_done() ourselves at the right time + * (which is when the absence time event starts). + */ + + IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), + "dummy channel switch op\n"); +} + static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_channel_switch *chsw) @@ -3336,6 +3350,7 @@ const struct ieee80211_ops iwl_mvm_hw_ops = { .set_tim = iwl_mvm_set_tim, + .channel_switch = iwl_mvm_channel_switch, .pre_channel_switch = iwl_mvm_pre_channel_switch, .post_channel_switch = iwl_mvm_post_channel_switch, diff --git a/drivers/net/wireless/iwlwifi/mvm/time-event.c b/drivers/net/wireless/iwlwifi/mvm/time-event.c index 1a537be216ce..ff631cc5e5e7 100644 --- a/drivers/net/wireless/iwlwifi/mvm/time-event.c +++ b/drivers/net/wireless/iwlwifi/mvm/time-event.c @@ -207,6 +207,7 @@ iwl_mvm_te_handle_notify_csa(struct iwl_mvm *mvm, break; case NL80211_IFTYPE_STATION: iwl_mvm_csa_client_absent(mvm, te_data->vif); + ieee80211_chswitch_done(te_data->vif, true); break; default: /* should never happen */ |