diff options
| author | Dedy Lansky <dlansky@codeaurora.org> | 2018-07-24 10:44:24 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2018-07-31 10:59:50 +0300 |
| commit | a24a3d6abb978d4abc25d541e787981e7ef555c8 (patch) | |
| tree | 78fd5e07de7c7f3308968c09d70935cb2a076e02 /drivers/net/wireless/ath/wil6210/wil6210.h | |
| parent | e15af41c05eda216a43b9e7a22c2399e0ad720ff (diff) | |
wil6210: add TX latency statistics
Collect statistics of TX latency. The latency is measured from the time
the HW gets aware of new SKB to transmit until the HW indicates tx
complete for this SKB.
The statistics are shown via new "tx_latency" debugfs.
Signed-off-by: Dedy Lansky <dlansky@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/ath/wil6210/wil6210.h')
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/wil6210.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h index 002d336cbde5..1a7a1ad1534f 100644 --- a/drivers/net/wireless/ath/wil6210/wil6210.h +++ b/drivers/net/wireless/ath/wil6210/wil6210.h @@ -55,6 +55,8 @@ union wil_tx_desc; #define WIL_DEFAULT_BUS_REQUEST_KBPS 128000 /* ~1Gbps */ #define WIL_MAX_BUS_REQUEST_KBPS 800000 /* ~6.1Gbps */ +#define WIL_NUM_LATENCY_BINS 200 + /* maximum number of virtual interfaces the driver supports * (including the main interface) */ @@ -552,6 +554,9 @@ struct wil_net_stats { unsigned long rx_bytes; unsigned long tx_bytes; unsigned long tx_errors; + u32 tx_latency_min_us; + u32 tx_latency_max_us; + u64 tx_latency_total_us; unsigned long rx_dropped; unsigned long rx_non_data_frame; unsigned long rx_short_frame; @@ -712,6 +717,13 @@ struct wil_sta_info { u8 mid; enum wil_sta_status status; struct wil_net_stats stats; + /** + * 20 latency bins. 1st bin counts packets with latency + * of 0..tx_latency_res, last bin counts packets with latency + * of 19*tx_latency_res and above. + * tx_latency_res is configured from "tx_latency" debug-fs. + */ + u64 *tx_latency_bins; /* Rx BACK */ struct wil_tid_ampdu_rx *tid_rx[WIL_STA_TID_NUM]; spinlock_t tid_rx_lock; /* guarding tid_rx array */ @@ -943,6 +955,8 @@ struct wil6210_priv { u8 wakeup_trigger; struct wil_suspend_stats suspend_stats; struct wil_debugfs_data dbg_data; + bool tx_latency; /* collect TX latency measurements */ + size_t tx_latency_res; /* bin resolution in usec */ void *platform_handle; struct wil_platform_ops platform_ops; |