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wifi: ath12k: change MAC buffer ring size to 4096

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For WCN7850, MAC buffer ring size is updated to 2048 in
955df16f2a ("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 <yingying.tang@oss.qualcomm.com>
Reviewed-by: Rameshkumar Sundaram <rameshkumar.sundaram@oss.qualcomm.com>
Reviewed-by: Baochen Qiang <baochen.qiang@oss.qualcomm.com>
Link: https://patch.msgid.link/20260610031358.2043716-1-yingying.tang@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
This commit is contained in:
Yingying Tang
2026-06-09 20:13:58 -07:00
committed by Jeff Johnson
parent 56f8f12c1a
commit 58aeb41249
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/ath/ath12k/dp.h
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@@ -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