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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>
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a57c688d34
commit
622e3f9b71
2 changed files with 16 additions and 0 deletions
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@ -3143,6 +3143,20 @@ static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
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}
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#endif
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static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
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struct ieee80211_vif *vif,
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struct ieee80211_channel_switch *chsw)
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{
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/* By implementing this operation, we prevent mac80211 from
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* starting its own channel switch timer, so that we can call
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* ieee80211_chswitch_done() ourselves at the right time
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* (which is when the absence time event starts).
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*/
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IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
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"dummy channel switch op\n");
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}
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static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
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struct ieee80211_vif *vif,
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struct ieee80211_channel_switch *chsw)
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@ -3336,6 +3350,7 @@ const struct ieee80211_ops iwl_mvm_hw_ops = {
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.set_tim = iwl_mvm_set_tim,
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.channel_switch = iwl_mvm_channel_switch,
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.pre_channel_switch = iwl_mvm_pre_channel_switch,
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.post_channel_switch = iwl_mvm_post_channel_switch,
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@ -207,6 +207,7 @@ iwl_mvm_te_handle_notify_csa(struct iwl_mvm *mvm,
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break;
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case NL80211_IFTYPE_STATION:
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iwl_mvm_csa_client_absent(mvm, te_data->vif);
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ieee80211_chswitch_done(te_data->vif, true);
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break;
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default:
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/* should never happen */
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