wifi: iwlwifi: mvm: do not send STA_DISABLE_TX_CMD for newer firmware

Newest firmware has completely offloaded this logic and this command
will be deprecated soon. Based on a capability bit advertised by the
firmware, skip this command.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20231207044813.e64ef70c0133.I9f47cdef2ba45f1f383b70023857376973de3a8c@changeidSigned-off-by: Johannes Berg <johannes.berg@intel.com>

drivers/net/wireless/intel/iwlwifi/fw/file.h

@@ -243,6 +243,8 @@ typedef unsigned int __bitwise iwl_ucode_tlv_api_t;
  *	version tables.
  * @IWL_UCODE_TLV_API_REDUCED_SCAN_CONFIG: This ucode supports v3 of
  *  SCAN_CONFIG_DB_CMD_API_S.
+ * @IWL_UCODE_TLV_API_NO_HOST_DISABLE_TX: Firmware offloaded the station disable tx
+ *	logic.
  *
  * @NUM_IWL_UCODE_TLV_API: number of bits used
  */
@@ -280,6 +282,7 @@ enum iwl_ucode_tlv_api {
 	IWL_UCODE_TLV_API_ADWELL_HB_DEF_N_AP	= (__force iwl_ucode_tlv_api_t)57,
 	IWL_UCODE_TLV_API_SCAN_EXT_CHAN_VER	= (__force iwl_ucode_tlv_api_t)58,
 	IWL_UCODE_TLV_API_BAND_IN_RX_DATA	= (__force iwl_ucode_tlv_api_t)59,
+	IWL_UCODE_TLV_API_NO_HOST_DISABLE_TX	= (__force iwl_ucode_tlv_api_t)66,
 
 	NUM_IWL_UCODE_TLV_API
 /*

drivers/net/wireless/intel/iwlwifi/mvm/mld-sta.c

@@ -872,6 +872,9 @@ void iwl_mvm_mld_sta_modify_disable_tx(struct iwl_mvm *mvm,
 	cmd.sta_id = cpu_to_le32(mvmsta->deflink.sta_id);
 	cmd.disable = cpu_to_le32(disable);
 
+	if (WARN_ON(iwl_mvm_has_no_host_disable_tx(mvm)))
+		return;
+
 	ret = iwl_mvm_send_cmd_pdu(mvm,
 				   WIDE_ID(MAC_CONF_GROUP, STA_DISABLE_TX_CMD),
 				   CMD_ASYNC, sizeof(cmd), &cmd);

drivers/net/wireless/intel/iwlwifi/mvm/mvm.h

@@ -1514,6 +1514,12 @@ static inline bool iwl_mvm_has_quota_low_latency(struct iwl_mvm *mvm)
 			  IWL_UCODE_TLV_API_QUOTA_LOW_LATENCY);
 }
 
+static inline bool iwl_mvm_has_no_host_disable_tx(struct iwl_mvm *mvm)
+{
+	return fw_has_api(&mvm->fw->ucode_capa,
+			  IWL_UCODE_TLV_API_NO_HOST_DISABLE_TX);
+}
+
 static inline bool iwl_mvm_has_tlc_offload(const struct iwl_mvm *mvm)
 {
 	return fw_has_capa(&mvm->fw->ucode_capa,

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

@@ -4150,7 +4150,8 @@ void iwl_mvm_sta_modify_disable_tx(struct iwl_mvm *mvm,
 	int ret;
 
 	if (mvm->mld_api_is_used) {
-		iwl_mvm_mld_sta_modify_disable_tx(mvm, mvmsta, disable);
+		if (!iwl_mvm_has_no_host_disable_tx(mvm))
+			iwl_mvm_mld_sta_modify_disable_tx(mvm, mvmsta, disable);
 		return;
 	}
 
@@ -4167,7 +4168,8 @@ void iwl_mvm_sta_modify_disable_tx_ap(struct iwl_mvm *mvm,
 	struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
 
 	if (mvm->mld_api_is_used) {
-		iwl_mvm_mld_sta_modify_disable_tx_ap(mvm, sta, disable);
+		if (!iwl_mvm_has_no_host_disable_tx(mvm))
+			iwl_mvm_mld_sta_modify_disable_tx_ap(mvm, sta, disable);
 		return;
 	}
 
@@ -4222,7 +4224,9 @@ void iwl_mvm_modify_all_sta_disable_tx(struct iwl_mvm *mvm,
 	int i;
 
 	if (mvm->mld_api_is_used) {
-		iwl_mvm_mld_modify_all_sta_disable_tx(mvm, mvmvif, disable);
+		if (!iwl_mvm_has_no_host_disable_tx(mvm))
+			iwl_mvm_mld_modify_all_sta_disable_tx(mvm, mvmvif,
+							      disable);
 		return;
 	}