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authorAndrei Otcheretianski <andrei.otcheretianski@intel.com>2013-10-22 07:01:12 +0400
committerEmmanuel Grumbach <emmanuel.grumbach@intel.com>2014-05-07 00:32:46 +0400
commitbd3398e2864e264842f5f702e5a69e30582a4d18 (patch)
treef977a2dc62827f6efe1d8094c77c18bb18d3dfe0 /drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
parent9256c2051d39ac5a56685b70b8dfaf87be59cb28 (diff)
downloadlinux-bd3398e2864e264842f5f702e5a69e30582a4d18.tar.xz
iwlwifi:mvm: Add AP/GO channel switch support
Publish WIPHY_FLAG_HAS_CHANNEL_SWITCH if the fw supports newly introduced IWL_UCODE_TLV_API_CSA_FLOW. When CSA starts, save the switching vif inside mvm and during the CSA period configure fw with a new beacon after each beacon transmission in order to update the csa counters. Also, handle correctly the CSA unbind-bind flow which is triggered by mac80211 when the actual channel switch happens. Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Reviewed-by: Luciano Coelho <luciano.coelho@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/mac-ctxt.c')
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
index 7110ec2605d6..56cf58e95698 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
@@ -1237,11 +1237,23 @@ int iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm,
u32 rate __maybe_unused =
le32_to_cpu(beacon->beacon_notify_hdr.initial_rate);
+ lockdep_assert_held(&mvm->mutex);
+
IWL_DEBUG_RX(mvm, "beacon status %#x retries:%d tsf:0x%16llX rate:%d\n",
status & TX_STATUS_MSK,
beacon->beacon_notify_hdr.failure_frame,
le64_to_cpu(beacon->tsf),
rate);
+
+ if (unlikely(mvm->csa_vif && mvm->csa_vif->csa_active)) {
+ if (!ieee80211_csa_is_complete(mvm->csa_vif)) {
+ iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm->csa_vif);
+ } else {
+ ieee80211_csa_finish(mvm->csa_vif);
+ mvm->csa_vif = NULL;
+ }
+ }
+
return 0;
}