wifi: iwlwifi: mvm: reduce maximum RX A-MPDU size

Since 1024 isn't being tested right now, allow only 512
for now.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230830112059.6e80366716ad.I19022084ac978b9960b12b205c052a83ab141203@changeidSigned-off-by: Johannes Berg <johannes.berg@intel.com>

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

 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
 /*
- * Copyright (C) 2005-2014, 2019-2021 Intel Corporation
+ * Copyright (C) 2005-2014, 2019-2021, 2023 Intel Corporation
  * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
  * Copyright (C) 2016-2017 Intel Deutschland GmbH
  */
@@ -76,7 +76,7 @@ enum iwl_tx_queue_cfg_actions {
 	TX_QUEUE_CFG_TFD_SHORT_FORMAT		= BIT(1),
 };
 
-#define IWL_DEFAULT_QUEUE_SIZE_EHT (1024 * 4)
+#define IWL_DEFAULT_QUEUE_SIZE_EHT (512 * 4)
 #define IWL_DEFAULT_QUEUE_SIZE_HE 1024
 #define IWL_DEFAULT_QUEUE_SIZE 256
 #define IWL_MGMT_QUEUE_SIZE 16

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

@@ -1136,7 +1136,7 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 		return NULL;
 
 	if (trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ)
-		max_agg = IEEE80211_MAX_AMPDU_BUF_EHT;
+		max_agg = 512;
 	else
 		max_agg = IEEE80211_MAX_AMPDU_BUF_HE;
 

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

@@ -827,7 +827,7 @@ static int iwl_mvm_get_queue_size(struct ieee80211_sta *sta)
 		if (!link)
 			continue;
 
-		/* support for 1k ba size */
+		/* support for 512 ba size */
 		if (link->eht_cap.has_eht &&
 		    max_size < IWL_DEFAULT_QUEUE_SIZE_EHT)
 			max_size = IWL_DEFAULT_QUEUE_SIZE_EHT;