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 @@ static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
 	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,