| Message ID | 20241113015631.3105-3-quic_bqiang@quicinc.com (mailing list archive) |
|---|---|
| State | New |
| Delegated to: | Jeff Johnson |
| Headers | show |
| Series | wifi: ath11k: fixes and refactor to firmware stats related functions | expand |
Baochen Qiang <quic_bqiang@quicinc.com> writes: > Currently ath11k_debugfs_fw_stats_process() is using static variables to count > firmware stat events. Taking num_vdev as an example, if for whatever reason ( > say ar->num_started_vdevs is 0 or firmware bug etc.) the following condition > > (++num_vdev) == total_vdevs_started > > is not met, is_end is not set thus num_vdev won't be cleared. Next time when > firmware stats is requested again, even if everything is working fine, we will > fail due to the condition above will never be satisfied. > > The same applies to num_bcn as well. > > Change to use non-static counters so that we have a chance to clear them each > time firmware stats is requested. Currently only ath11k_fw_stats_request() and > ath11k_debugfs_fw_stats_request() are requesting firmware stats, so clear > counters there. > > Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.37 > > Fixes: da3a9d3c1576 ("ath11k: refactor debugfs code into debugfs.c") > Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com> Yikes, good catch! Acked-by: Kalle Valo <kvalo@kernel.org>
diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h index 09c37e19a168..35d2eee2f91f 100644 --- a/drivers/net/wireless/ath/ath11k/core.h +++ b/drivers/net/wireless/ath/ath11k/core.h @@ -599,6 +599,8 @@ struct ath11k_fw_stats { struct list_head pdevs; struct list_head vdevs; struct list_head bcn; + u32 num_vdev_recvd; + u32 num_bcn_recvd; }; struct ath11k_dbg_htt_stats { diff --git a/drivers/net/wireless/ath/ath11k/debugfs.c b/drivers/net/wireless/ath/ath11k/debugfs.c index a5e0f2092da5..fd0d2a057084 100644 --- a/drivers/net/wireless/ath/ath11k/debugfs.c +++ b/drivers/net/wireless/ath/ath11k/debugfs.c @@ -99,6 +99,8 @@ static void ath11k_debugfs_fw_stats_reset(struct ath11k *ar) ar->fw_stats_done = false; ath11k_fw_stats_pdevs_free(&ar->fw_stats.pdevs); ath11k_fw_stats_vdevs_free(&ar->fw_stats.vdevs); + ar->fw_stats.num_vdev_recvd = 0; + ar->fw_stats.num_bcn_recvd = 0; spin_unlock_bh(&ar->data_lock); } @@ -107,7 +109,6 @@ 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; - static unsigned int num_vdev, num_bcn; size_t total_vdevs_started = 0; int i; @@ -132,15 +133,14 @@ void ath11k_debugfs_fw_stats_process(struct ath11k *ar, struct ath11k_fw_stats * total_vdevs_started += ar->num_started_vdevs; } - is_end = ((++num_vdev) == total_vdevs_started); + is_end = ((++ar->fw_stats.num_vdev_recvd) == total_vdevs_started); list_splice_tail_init(&stats->vdevs, &ar->fw_stats.vdevs); - if (is_end) { + if (is_end) ar->fw_stats_done = true; - num_vdev = 0; - } + return; } @@ -152,15 +152,13 @@ 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 = ((++num_bcn) == 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); - if (is_end) { + if (is_end) ar->fw_stats_done = true; - num_bcn = 0; - } } } diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c index e6acbff06749..f147ef960c22 100644 --- a/drivers/net/wireless/ath/ath11k/mac.c +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -9334,6 +9334,8 @@ static int ath11k_fw_stats_request(struct ath11k *ar, spin_lock_bh(&ar->data_lock); ar->fw_stats_done = false; ath11k_fw_stats_pdevs_free(&ar->fw_stats.pdevs); + ar->fw_stats.num_vdev_recvd = 0; + ar->fw_stats.num_bcn_recvd = 0; spin_unlock_bh(&ar->data_lock); reinit_completion(&ar->fw_stats_complete);
Currently ath11k_debugfs_fw_stats_process() is using static variables to count firmware stat events. Taking num_vdev as an example, if for whatever reason ( say ar->num_started_vdevs is 0 or firmware bug etc.) the following condition (++num_vdev) == total_vdevs_started is not met, is_end is not set thus num_vdev won't be cleared. Next time when firmware stats is requested again, even if everything is working fine, we will fail due to the condition above will never be satisfied. The same applies to num_bcn as well. Change to use non-static counters so that we have a chance to clear them each time firmware stats is requested. Currently only ath11k_fw_stats_request() and ath11k_debugfs_fw_stats_request() are requesting firmware stats, so clear counters there. Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.37 Fixes: da3a9d3c1576 ("ath11k: refactor debugfs code into debugfs.c") Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com> --- drivers/net/wireless/ath/ath11k/core.h | 2 ++ drivers/net/wireless/ath/ath11k/debugfs.c | 16 +++++++--------- drivers/net/wireless/ath/ath11k/mac.c | 2 ++ 3 files changed, 11 insertions(+), 9 deletions(-)