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authorSara Sharon <sara.sharon@intel.com>2018-11-26 12:00:04 +0200
committerLuca Coelho <luciano.coelho@intel.com>2019-03-22 12:59:39 +0200
commitc37763d22d07049cc13a088d8622d25d2a7d48de (patch)
treeda5c7fc0baeed7e6737e28f86e5fbbfffb912adb
parentd47cdb884a9901a137edaa66e9866c98048e909c (diff)
downloadlinux-c37763d22d07049cc13a088d8622d25d2a7d48de.tar.bz2
iwlwifi: mvm: track CSA beacons
Send to FW modify command for every beacon we receive during channel switch. FW will track the count, and make sure the event is scheduled in time even if AP changed count. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
-rw-r--r--drivers/net/wireless/intel/iwlwifi/fw/file.h2
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c30
2 files changed, 30 insertions, 2 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/file.h b/drivers/net/wireless/intel/iwlwifi/fw/file.h
index 641c95d03b15..04ad6b96a28b 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/file.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/file.h
@@ -350,6 +350,7 @@ typedef unsigned int __bitwise iwl_ucode_tlv_capa_t;
* IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD: firmware supports CSA command
* @IWL_UCODE_TLV_CAPA_ULTRA_HB_CHANNELS: firmware supports ultra high band
* (6 GHz).
+ * @IWL_UCODE_TLV_CAPA_CS_MODIFY: firmware supports modify action CSA command
* @IWL_UCODE_TLV_CAPA_EXTENDED_DTS_MEASURE: extended DTS measurement
* @IWL_UCODE_TLV_CAPA_SHORT_PM_TIMEOUTS: supports short PM timeouts
* @IWL_UCODE_TLV_CAPA_BT_MPLUT_SUPPORT: supports bt-coex Multi-priority LUT
@@ -420,6 +421,7 @@ enum iwl_ucode_tlv_capa {
IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD = (__force iwl_ucode_tlv_capa_t)46,
IWL_UCODE_TLV_CAPA_ULTRA_HB_CHANNELS = (__force iwl_ucode_tlv_capa_t)48,
IWL_UCODE_TLV_CAPA_FTM_CALIBRATED = (__force iwl_ucode_tlv_capa_t)47,
+ IWL_UCODE_TLV_CAPA_CS_MODIFY = (__force iwl_ucode_tlv_capa_t)49,
/* set 2 */
IWL_UCODE_TLV_CAPA_EXTENDED_DTS_MEASURE = (__force iwl_ucode_tlv_capa_t)64,
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index b5a9e83cc034..d5f627621593 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -8,7 +8,7 @@
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 Intel Corporation
+ * Copyright(c) 2018 - 2019 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@@ -31,7 +31,7 @@
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 Intel Corporation
+ * Copyright(c) 2018 - 2019 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -4631,6 +4631,31 @@ out_unlock:
return ret;
}
+static void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_channel_switch *chsw)
+{
+ struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
+ struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+ struct iwl_chan_switch_te_cmd cmd = {
+ .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
+ mvmvif->color)),
+ .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY),
+ .tsf = cpu_to_le32(chsw->timestamp),
+ .cs_count = chsw->count,
+ };
+
+ if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY))
+ return;
+
+ IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d\n", mvmvif->id);
+
+ WARN_ON(iwl_mvm_send_cmd_pdu(mvm,
+ WIDE_ID(MAC_CONF_GROUP,
+ CHANNEL_SWITCH_TIME_EVENT_CMD),
+ CMD_ASYNC, sizeof(cmd), &cmd));
+}
+
static void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
@@ -5111,6 +5136,7 @@ const struct ieee80211_ops iwl_mvm_hw_ops = {
.pre_channel_switch = iwl_mvm_pre_channel_switch,
.post_channel_switch = iwl_mvm_post_channel_switch,
.abort_channel_switch = iwl_mvm_abort_channel_switch,
+ .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon,
.tdls_channel_switch = iwl_mvm_tdls_channel_switch,
.tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,