From 58aeb412495ada7fe5495c7805504d7cf1d45453 Mon Sep 17 00:00:00 2001 From: Yingying Tang Date: Tue, 9 Jun 2026 20:13:58 -0700 Subject: wifi: ath12k: change MAC buffer ring size to 4096 For WCN7850, MAC buffer ring size is updated to 2048 in 955df16f2a4c3 ("wifi: ath12k: change MAC buffer ring size to 2048") to increase peak throughput. But during the RX process, a phenomenon can still be observed where the throughput drops by about 30% from its peak value and then recovers, and this behavior repeats during RX. After increasing MAC buffer ring size to 4096, the data rate drop has gone. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00302-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.115823.3 Signed-off-by: Yingying Tang Reviewed-by: Rameshkumar Sundaram Reviewed-by: Baochen Qiang Link: https://patch.msgid.link/20260610031358.2043716-1-yingying.tang@oss.qualcomm.com Signed-off-by: Jeff Johnson --- drivers/net/wireless/ath/ath12k/dp.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath12k/dp.h b/drivers/net/wireless/ath/ath12k/dp.h index 9b39146e65e1..64f79e43341e 100644 --- a/drivers/net/wireless/ath/ath12k/dp.h +++ b/drivers/net/wireless/ath/ath12k/dp.h @@ -205,7 +205,7 @@ struct ath12k_pdev_dp { #define DP_REO_CMD_RING_SIZE 256 #define DP_REO_STATUS_RING_SIZE 2048 #define DP_RXDMA_BUF_RING_SIZE 4096 -#define DP_RX_MAC_BUF_RING_SIZE 2048 +#define DP_RX_MAC_BUF_RING_SIZE 4096 #define DP_RXDMA_REFILL_RING_SIZE 2048 #define DP_RXDMA_ERR_DST_RING_SIZE 1024 #define DP_RXDMA_MON_STATUS_RING_SIZE 1024 -- cgit v1.2.3