samsung_sm8750/android_kernel_samsung_sm8750
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

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

Browse Source 
[ Upstream commit 3b6d00fa883075dcaf49221538230e038a9c0b43 ]

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: d5c65159f2 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250220082448.31039-4-quic_bqiang@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Baochen Qiang
2025-02-20 16:24:44 +08:00
committed by Greg Kroah-Hartman
parent a0ec9e39cb
commit e8e4057570
1 changed files with 7 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/net/wireless/ath/ath11k/debugfs.c
View File

@@ -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_base *ab = ar->ab;
struct ath11k_pdev *pdev; struct ath11k_pdev *pdev;
bool is_end; bool is_end = true;
size_t total_vdevs_started = 0; size_t total_vdevs_started = 0;
int i; 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; 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, list_splice_tail_init(&stats->vdevs,
&ar->fw_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 /* Mark end until we reached the count of all started VDEVs
* within the PDEV * 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, list_splice_tail_init(&stats->bcn,
&ar->fw_stats.bcn); &ar->fw_stats.bcn);