Commit 3b6d00fa authored by Baochen Qiang's avatar Baochen Qiang Committed by Jeff Johnson
Browse files

wifi: ath11k: don't wait when there is no vdev started 



For WMI_REQUEST_VDEV_STAT request, firmware might split response into
multiple events dut to buffer limit, hence currently in
ath11k_debugfs_fw_stats_process() we wait until all events received.
In case there is no vdev started, this results in that below condition
would never get satisfied

	((++ar->fw_stats.num_vdev_recvd) == total_vdevs_started)

finally the requestor would be blocked until wait time out.

The same applies to WMI_REQUEST_BCN_STAT request as well due to:

	((++ar->fw_stats.num_bcn_recvd) == ar->num_started_vdevs)

Change to check the number of started vdev first: if it is zero, finish
wait directly; if not, follow the old way.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.37

Fixes: d5c65159 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Signed-off-by: default avatarBaochen Qiang <quic_bqiang@quicinc.com>
Reviewed-by: default avatarVasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250220082448.31039-4-quic_bqiang@quicinc.com


Signed-off-by: default avatarJeff Johnson <jeff.johnson@oss.qualcomm.com>
parent 2bcf73b2

drivers/net/wireless/ath/ath11k/debugfs.c

+7 −3
Original line number Diff line number Diff line
@@ -107,7 +107,7 @@ void ath11k_debugfs_fw_stats_process(struct ath11k *ar, struct ath11k_fw_stats * 
{

	struct ath11k_base *ab = ar->ab;

	struct ath11k_pdev *pdev;

	bool is_end;

	bool is_end = true;

	size_t total_vdevs_started = 0;

	int i;
@@ -132,7 +132,9 @@ void ath11k_debugfs_fw_stats_process(struct ath11k *ar, struct ath11k_fw_stats * 
				total_vdevs_started += ar->num_started_vdevs;

		}



		is_end = ((++ar->fw_stats.num_vdev_recvd) == total_vdevs_started);

		if (total_vdevs_started)

			is_end = ((++ar->fw_stats.num_vdev_recvd) ==

				  total_vdevs_started);



		list_splice_tail_init(&stats->vdevs,

				      &ar->fw_stats.vdevs);
@@ -151,7 +153,9 @@ void ath11k_debugfs_fw_stats_process(struct ath11k *ar, struct ath11k_fw_stats * 
		/* Mark end until we reached the count of all started VDEVs

		 * within the PDEV

		 */

		is_end = ((++ar->fw_stats.num_bcn_recvd) == ar->num_started_vdevs);

		if (ar->num_started_vdevs)

			is_end = ((++ar->fw_stats.num_bcn_recvd) ==

				  ar->num_started_vdevs);



		list_splice_tail_init(&stats->bcn,

				      &ar->fw_stats.bcn);