In mesh node traffic, internal firmware-transmitted failures are
reported as transmitted failures in mesh metric calculation, leading
to the breakage of the mesh link.
Fix the issue by dropping the internal firmware-transmitted failures
before updating the TX completion status to mac80211, in order to
prevent false failure averaging in mesh metric calculation.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Fixes: d889913205cf ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices")
Signed-off-by: Karthikeyan Kathirvel <quic_kathirve@xxxxxxxxxxx>
---
v2:
Addressed Jeff's review comments
- Updated copyrights of hal_desc.h to 2024
- nits addressed
---
drivers/net/wireless/ath/ath12k/dp_tx.c | 38 ++++++++++++++++------
drivers/net/wireless/ath/ath12k/hal_desc.h | 22 ++++++++++++-
2 files changed, 49 insertions(+), 11 deletions(-)
diff --git a/drivers/net/wireless/ath/ath12k/dp_tx.c b/drivers/net/wireless/ath/ath12k/dp_tx.c
index 9b6d7d72f57c..423afdad98e3 100644
--- a/drivers/net/wireless/ath/ath12k/dp_tx.c
+++ b/drivers/net/wireless/ath/ath12k/dp_tx.c
@@ -481,18 +481,36 @@ static void ath12k_dp_tx_complete_msdu(struct ath12k *ar,
/* skip tx rate update from ieee80211_status*/
info->status.rates[0].idx = -1;
- if (ts->status == HAL_WBM_TQM_REL_REASON_FRAME_ACKED &&
- !(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
- info->flags |= IEEE80211_TX_STAT_ACK;
- info->status.ack_signal = ATH12K_DEFAULT_NOISE_FLOOR +
- ts->ack_rssi;
- info->status.flags = IEEE80211_TX_STATUS_ACK_SIGNAL_VALID;
+ switch (ts->status) {
+ case HAL_WBM_TQM_REL_REASON_FRAME_ACKED:
+ if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
+ info->flags |= IEEE80211_TX_STAT_ACK;
+ info->status.ack_signal = ATH12K_DEFAULT_NOISE_FLOOR +
+ ts->ack_rssi;
+ info->status.flags = IEEE80211_TX_STATUS_ACK_SIGNAL_VALID;
+ }
+ break;
+ case HAL_WBM_TQM_REL_REASON_CMD_REMOVE_TX:
+ if (info->flags & IEEE80211_TX_CTL_NO_ACK) {
+ info->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
+ break;
+ }
+ fallthrough;
+ case HAL_WBM_TQM_REL_REASON_CMD_REMOVE_MPDU:
+ case HAL_WBM_TQM_REL_REASON_DROP_THRESHOLD:
+ case HAL_WBM_TQM_REL_REASON_CMD_REMOVE_AGED_FRAMES:
+ /* The failure status is due to internal firmware tx failure
+ * hence drop the frame; do not update the status of frame to
+ * the upper layer
+ */
+ dev_kfree_skb_any(msdu);
+ goto exit;
+ default:
+ ath12k_dbg(ab, ATH12K_DBG_DP_TX, "tx frame is not acked status %d\n",
+ ts->status);
+ break;
}
- if (ts->status == HAL_WBM_TQM_REL_REASON_CMD_REMOVE_TX &&
- (info->flags & IEEE80211_TX_CTL_NO_ACK))
- info->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
-
/* NOTE: Tx rate status reporting. Tx completion status does not have
* necessary information (for example nss) to build the tx rate.
* Might end up reporting it out-of-band from HTT stats.
diff --git a/drivers/net/wireless/ath/ath12k/hal_desc.h b/drivers/net/wireless/ath/ath12k/hal_desc.h
index 63340256d3f6..71e8c8a091ae 100644
--- a/drivers/net/wireless/ath/ath12k/hal_desc.h
+++ b/drivers/net/wireless/ath/ath12k/hal_desc.h
@@ -1,7 +1,7 @@
/* SPDX-License-Identifier: BSD-3-Clause-Clear */
/*
* Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.
- * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#include "core.h"
@@ -2048,6 +2048,19 @@ struct hal_wbm_release_ring {
* fw with fw_reason2.
* @HAL_WBM_TQM_REL_REASON_CMD_REMOVE_RESEAON3: Remove command initiated by
* fw with fw_reason3.
+ * @HAL_WBM_TQM_REL_REASON_CMD_DISABLE_QUEUE: Remove command initiated by
+ * fw with disable queue.
+ * @HAL_WBM_TQM_REL_REASON_CMD_TILL_NONMATCHING: Remove command initiated by
+ * fw to remove all mpdu until 1st non-match.
+ * @HAL_WBM_TQM_REL_REASON_DROP_THRESHOLD: Dropped due to drop threshold
+ * criteria
+ * @HAL_WBM_TQM_REL_REASON_DROP_LINK_DESC_UNAVAIL: Dropped due to link desc
+ * not available
+ * @HAL_WBM_TQM_REL_REASON_DROP_OR_INVALID_MSDU: Dropped due drop bit set or
+ * null flow
+ * @HAL_WBM_TQM_REL_REASON_MULTICAST_DROP: Dropped due mcast drop set for VDEV
+ * @HAL_WBM_TQM_REL_REASON_VDEV_MISMATCH_DROP: Dropped due to being set with
+ * 'TCL_drop_reason'
*/
enum hal_wbm_tqm_rel_reason {
HAL_WBM_TQM_REL_REASON_FRAME_ACKED,
@@ -2058,6 +2071,13 @@ enum hal_wbm_tqm_rel_reason {
HAL_WBM_TQM_REL_REASON_CMD_REMOVE_RESEAON1,
HAL_WBM_TQM_REL_REASON_CMD_REMOVE_RESEAON2,
HAL_WBM_TQM_REL_REASON_CMD_REMOVE_RESEAON3,
+ HAL_WBM_TQM_REL_REASON_CMD_DISABLE_QUEUE,
+ HAL_WBM_TQM_REL_REASON_CMD_TILL_NONMATCHING,
+ HAL_WBM_TQM_REL_REASON_DROP_THRESHOLD,
+ HAL_WBM_TQM_REL_REASON_DROP_LINK_DESC_UNAVAIL,
+ HAL_WBM_TQM_REL_REASON_DROP_OR_INVALID_MSDU,
+ HAL_WBM_TQM_REL_REASON_MULTICAST_DROP,
+ HAL_WBM_TQM_REL_REASON_VDEV_MISMATCH_DROP,
};
struct hal_wbm_buffer_ring {
base-commit: 363e7193eaf258fe7f04e8db560bd8a282a12cd9
--
2.34.1
