From 5e32edc6942570429d9c64d0641fc2addbf92be1 Mon Sep 17 00:00:00 2001 From: Nithyanantham Paramasivam Date: Wed, 6 Aug 2025 16:47:49 +0530 Subject: [PATCH] wifi: ath12k: Fix flush cache failure during RX queue update Flush cache failures were observed after RX queue update for TID delete. This occurred because the queue was invalid during flush. Set the VLD bit in the RX queue update command for TID delete. This ensures the queue remains valid during the flush cache process. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Fixes: d889913205cf ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices") Signed-off-by: Nithyanantham Paramasivam Reviewed-by: Baochen Qiang Reviewed-by: Vasanthakumar Thiagarajan Link: https://patch.msgid.link/20250806111750.3214584-7-nithyanantham.paramasivam@oss.qualcomm.com Signed-off-by: Jeff Johnson --- drivers/net/wireless/ath/ath12k/dp_rx.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/wireless/ath/ath12k/dp_rx.c b/drivers/net/wireless/ath/ath12k/dp_rx.c index 331dafcecc89b..1ed42207a6372 100644 --- a/drivers/net/wireless/ath/ath12k/dp_rx.c +++ b/drivers/net/wireless/ath/ath12k/dp_rx.c @@ -850,6 +850,8 @@ static int ath12k_dp_rx_tid_delete_handler(struct ath12k_base *ab, cmd.addr_lo = lower_32_bits(rx_tid->qbuf.paddr_aligned); cmd.addr_hi = upper_32_bits(rx_tid->qbuf.paddr_aligned); cmd.upd0 |= HAL_REO_CMD_UPD0_VLD; + /* Observed flush cache failure, to avoid that set vld bit during delete */ + cmd.upd1 |= HAL_REO_CMD_UPD1_VLD; return ath12k_dp_reo_cmd_send(ab, rx_tid, HAL_REO_CMD_UPDATE_RX_QUEUE, &cmd, -- 2.47.3