diff options
| author | Ilan Peer <ilan.peer@intel.com> | 2018-04-20 13:49:25 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2018-05-23 12:06:10 +0300 |
| commit | d4e36e5554eb92f3ec7fedad3efb602570584df4 (patch) | |
| tree | aeae9acd7293f9fd07778f1a68ac39d8b000e33b /drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | |
| parent | dd8070bff204a67fcb6585f18047841a895b68d7 (diff) | |
| download | linux-d4e36e5554eb92f3ec7fedad3efb602570584df4.tar.xz | |
mac80211: Support adding duration for prepare_tx() callback
There are specific cases, such as SAE authentication exchange, that
might require long duration to complete. For such cases, add support
for indicating to the driver the required duration of the prepare_tx()
operation, so the driver would still be able to complete the frame
exchange.
Currently, indicate the duration only for SAE authentication exchange,
as SAE authentication can take up to 2000 msec (as defined in IEEE
P802.11-REVmd D1.0 p. 3504).
As the patch modified the prepare_tx() callback API, also modify
the relevant code in iwlwifi.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c index 5f0701c992a4..ec91dd90acfd 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c @@ -2844,7 +2844,8 @@ static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, } static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, - struct ieee80211_vif *vif) + struct ieee80211_vif *vif, + u16 req_duration) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; @@ -2857,6 +2858,9 @@ static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX)) return; + if (req_duration > duration) + duration = req_duration; + mutex_lock(&mvm->mutex); /* Try really hard to protect the session and hear a beacon */ iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false); |