wifi: ath12k: add support for BA1024

Currently the maximum block ACK window size supported is 256.
This results in that, when connected to an AP which supports
larger BA sizes like BA512 or BA1024, only BA256 is
established, leading to a lower peak throughput.

So add support for BA1024, this is done by allocating a larger
REO queue and advertising IEEE80211_MAX_AMPDU_BUF_EHT support
to MAC80211.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4

Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://msgid.link/20231129020414.56425-3-quic_bqiang@quicinc.com

drivers/net/wireless/ath/ath12k/dp.h

@@ -150,7 +150,7 @@ struct ath12k_pdev_dp {
 
 #define DP_RX_HASH_ENABLE	1 /* Enable hash based Rx steering */
 
-#define DP_BA_WIN_SZ_MAX	256
+#define DP_BA_WIN_SZ_MAX	1024
 
 #define DP_TCL_NUM_RING_MAX	4
 

drivers/net/wireless/ath/ath12k/hal_desc.h

@@ -2517,6 +2517,12 @@ struct hal_reo_update_rx_queue {
 	__le32 pn[4];
 } __packed;
 
+struct hal_rx_reo_queue_1k {
+	struct hal_desc_header desc_hdr;
+	__le32 rx_bitmap_1023_288[23];
+	__le32 reserved[8];
+} __packed;
+
 #define HAL_REO_UNBLOCK_CACHE_INFO0_UNBLK_CACHE		BIT(0)
 #define HAL_REO_UNBLOCK_CACHE_INFO0_RESOURCE_IDX	GENMASK(2, 1)
 

drivers/net/wireless/ath/ath12k/hal_rx.c

@@ -688,23 +688,28 @@ void ath12k_hal_reo_update_rx_reo_queue_status(struct ath12k_base *ab,
 
 u32 ath12k_hal_reo_qdesc_size(u32 ba_window_size, u8 tid)
 {
-	u32 num_ext_desc;
+	u32 num_ext_desc, num_1k_desc = 0;
 
 	if (ba_window_size <= 1) {
 		if (tid != HAL_DESC_REO_NON_QOS_TID)
 			num_ext_desc = 1;
 		else
 			num_ext_desc = 0;
+
 	} else if (ba_window_size <= 105) {
 		num_ext_desc = 1;
 	} else if (ba_window_size <= 210) {
 		num_ext_desc = 2;
-	} else {
+	} else if (ba_window_size <= 256) {
 		num_ext_desc = 3;
+	} else {
+		num_ext_desc = 10;
+		num_1k_desc = 1;
 	}
 
 	return sizeof(struct hal_rx_reo_queue) +
-		(num_ext_desc * sizeof(struct hal_rx_reo_queue_ext));
+		(num_ext_desc * sizeof(struct hal_rx_reo_queue_ext)) +
+		(num_1k_desc * sizeof(struct hal_rx_reo_queue_1k));
 }
 
 void ath12k_hal_reo_qdesc_setup(struct hal_rx_reo_queue *qdesc,

drivers/net/wireless/ath/ath12k/mac.c

@@ -7602,7 +7602,7 @@ static int ath12k_mac_hw_register(struct ath12k *ar)
 	hw->queues = ATH12K_HW_MAX_QUEUES;
 	wiphy->tx_queue_len = ATH12K_QUEUE_LEN;
 	hw->offchannel_tx_hw_queue = ATH12K_HW_MAX_QUEUES - 1;
-	hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
+	hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_EHT;
 
 	hw->vif_data_size = sizeof(struct ath12k_vif);
 	hw->sta_data_size = sizeof(struct ath12k_sta);