diff options
| author | Andrei Otcheretianski <andrei.otcheretianski@intel.com> | 2016-02-28 18:12:21 +0300 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2016-07-01 18:09:45 +0300 |
| commit | d3a108a48dc670d539c58d4339d211b914a1e1b5 (patch) | |
| tree | 860fddc03aa5c5b0076a3e219497abb4470deca6 /drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | |
| parent | ab2e696bd25c11bf4baf84f285555b069ae2dd30 (diff) | |
| download | linux-d3a108a48dc670d539c58d4339d211b914a1e1b5.tar.xz | |
iwlwifi: mvm: Support CSA countdown offloading
Add support CSA countdown offloading. When CSA starts, the driver
specifies the offsets to the eCSA and CSA IEs in the beacon template
command and the fw performs the countdown.
The fw notifies the driver when the channel switch flow
should be performed.
Beacon sent notifications are not used anymore.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c index b7014bc3fbd4..e5cb7dbcd05c 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c @@ -1199,6 +1199,7 @@ static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) flush_work(&mvm->async_handlers_wk); flush_work(&mvm->add_stream_wk); cancel_delayed_work_sync(&mvm->fw_dump_wk); + cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); iwl_mvm_free_fw_dump_desc(mvm); mutex_lock(&mvm->mutex); @@ -3687,6 +3688,13 @@ static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, goto out_unlock; } + /* we still didn't unblock tx. prevent new CS meanwhile */ + if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, + lockdep_is_held(&mvm->mutex))) { + ret = -EBUSY; + goto out_unlock; + } + rcu_assign_pointer(mvm->csa_vif, vif); if (WARN_ONCE(mvmvif->csa_countdown, @@ -3695,6 +3703,8 @@ static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, goto out_unlock; } + mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; + break; case NL80211_IFTYPE_STATION: if (mvmvif->lqm_active) |