wifi: iwlwifi: mvm: add beacon template version 14

In version 14 tim_size became the offset of the
broadcast TWT IE.

Signed-off-by: striebit <[email protected]>
Signed-off-by: Miri Korenblit <[email protected]>
Link: https://msgid.link/20240506095953.76957de93810.I2c718b0d648f2559fe1337df39915c5e772856bc@changeid
Signed-off-by: Johannes Berg <[email protected]>

Author: striebit

drivers/net/wireless/intel/iwlwifi/fw/api/tx.h

@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
 /*
- * Copyright (C) 2012-2014, 2018-2023 Intel Corporation
+ * Copyright (C) 2012-2014, 2018-2024 Intel Corporation
  * Copyright (C) 2016-2017 Intel Deutschland GmbH
  */
 #ifndef __iwl_fw_api_tx_h__
@@ -793,7 +793,8 @@ enum iwl_mac_beacon_flags {
  * @reserved: reserved
  * @link_id: the firmware id of the link that will use this beacon
  * @tim_idx: the offset of the tim IE in the beacon
- * @tim_size: the length of the tim IE
+ * @tim_size: the length of the tim IE (version < 14)
+ * @btwt_offset: offset to the broadcast TWT IE if present (version >= 14)
  * @ecsa_offset: offset to the ECSA IE if present
  * @csa_offset: offset to the CSA IE if present
  * @frame: the template of the beacon frame
@@ -805,14 +806,18 @@ struct iwl_mac_beacon_cmd {
 	__le32 reserved;
 	__le32 link_id;
 	__le32 tim_idx;
-	__le32 tim_size;
+	union {
+		__le32 tim_size;
+		__le32 btwt_offset;
+	};
 	__le32 ecsa_offset;
 	__le32 csa_offset;
 	struct ieee80211_hdr frame[];
 } __packed; /* BEACON_TEMPLATE_CMD_API_S_VER_10,
 	     * BEACON_TEMPLATE_CMD_API_S_VER_11,
 	     * BEACON_TEMPLATE_CMD_API_S_VER_12,
-	     * BEACON_TEMPLATE_CMD_API_S_VER_13
+	     * BEACON_TEMPLATE_CMD_API_S_VER_13,
+	     * BEACON_TEMPLATE_CMD_API_S_VER_14
 	     */
 
 struct iwl_beacon_notif {

drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c

@@ -1163,6 +1163,13 @@ static int iwl_mvm_mac_ctxt_send_beacon_v9(struct iwl_mvm *mvm,
 						   WLAN_EID_EXT_CHANSWITCH_ANN,
 						   beacon->len));
 
+	if (vif->type == NL80211_IFTYPE_AP &&
+	    iwl_fw_lookup_cmd_ver(mvm->fw, BEACON_TEMPLATE_CMD, 0) >= 14)
+		beacon_cmd.btwt_offset =
+			cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data,
+							   WLAN_EID_S1G_TWT,
+							   beacon->len));
+
 	return iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd,
 						sizeof(beacon_cmd));
 }