wifi: iwlwifi: mvm: support iwl_dev_tx_power_cmd_v8

This just adds a __le32 that we (currently) don't use.

Signed-off-by: Emmanuel Grumbach <[email protected]>
Signed-off-by: Miri Korenblit <[email protected]>
Link: https://msgid.link/20240319100755.29ff7a88ddac.I39cf2ff1d1ddf0fa62722538698dc7f21aaaf39e@changeid
Signed-off-by: Johannes Berg <[email protected]>

Author: egrumbach

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

@@ -385,13 +385,42 @@ struct iwl_dev_tx_power_cmd_v7 {
 	__le32 timer_period;
 	__le32 flags;
 } __packed; /* TX_REDUCED_POWER_API_S_VER_7 */
+
+/**
+ * struct iwl_dev_tx_power_cmd_v8 - TX power reduction command version 8
+ * @per_chain: per chain restrictions
+ * @enable_ack_reduction: enable or disable close range ack TX power
+ *	reduction.
+ * @per_chain_restriction_changed: is per_chain_restriction has changed
+ *	from last command. used if set_mode is
+ *	IWL_TX_POWER_MODE_SET_SAR_TIMER.
+ *	note: if not changed, the command is used for keep alive only.
+ * @reserved: reserved (padding)
+ * @timer_period: timer in milliseconds. if expires FW will change to default
+ *	BIOS values. relevant if setMode is IWL_TX_POWER_MODE_SET_SAR_TIMER
+ * @flags: reduce power flags.
+ * @tpc_vlp_backoff_level: user backoff of UNII5,7 VLP channels in USA.
+ *	Not in use.
+ */
+struct iwl_dev_tx_power_cmd_v8 {
+	__le16 per_chain[IWL_NUM_CHAIN_TABLES_V2][IWL_NUM_CHAIN_LIMITS][IWL_NUM_SUB_BANDS_V2];
+	u8 enable_ack_reduction;
+	u8 per_chain_restriction_changed;
+	u8 reserved[2];
+	__le32 timer_period;
+	__le32 flags;
+	__le32 tpc_vlp_backoff_level;
+} __packed; /* TX_REDUCED_POWER_API_S_VER_8 */
+
 /**
  * struct iwl_dev_tx_power_cmd - TX power reduction command (multiversion)
  * @common: common part of the command
  * @v3: version 3 part of the command
  * @v4: version 4 part of the command
  * @v5: version 5 part of the command
  * @v6: version 6 part of the command
+ * @v7: version 7 part of the command
+ * @v8: version 8 part of the command
  */
 struct iwl_dev_tx_power_cmd {
 	struct iwl_dev_tx_power_common common;
@@ -401,6 +430,7 @@ struct iwl_dev_tx_power_cmd {
 		struct iwl_dev_tx_power_cmd_v5 v5;
 		struct iwl_dev_tx_power_cmd_v6 v6;
 		struct iwl_dev_tx_power_cmd_v7 v7;
+		struct iwl_dev_tx_power_cmd_v8 v8;
 	};
 };
 

drivers/net/wireless/intel/iwlwifi/mvm/fw.c

@@ -896,11 +896,13 @@ int iwl_mvm_sar_select_profile(struct iwl_mvm *mvm, int prof_a, int prof_b)
 	u32 n_subbands;
 	u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id,
 					   IWL_FW_CMD_VER_UNKNOWN);
-	if (cmd_ver == 7) {
+	if (cmd_ver >= 7) {
 		len = sizeof(cmd.v7);
 		n_subbands = IWL_NUM_SUB_BANDS_V2;
 		per_chain = cmd.v7.per_chain[0][0];
 		cmd.v7.flags = cpu_to_le32(mvm->fwrt.reduced_power_flags);
+		if (cmd_ver == 8)
+			len = sizeof(cmd.v8);
 	} else if (cmd_ver == 6) {
 		len = sizeof(cmd.v6);
 		n_subbands = IWL_NUM_SUB_BANDS_V2;

drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c

@@ -1412,7 +1412,9 @@ int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
 		cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
 
-	if (cmd_ver == 7)
+	if (cmd_ver == 8)
+		len = sizeof(cmd.v8);
+	else if (cmd_ver == 7)
 		len = sizeof(cmd.v7);
 	else if (cmd_ver == 6)
 		len = sizeof(cmd.v6);