diff options
| author | Maya Erez <qca_merez@qca.qualcomm.com> | 2017-08-08 14:16:45 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@qca.qualcomm.com> | 2017-08-08 21:44:03 +0300 |
| commit | 262345265e599fe5ccc75ba435147d17df04bfd6 (patch) | |
| tree | 21803333404d6d4a3336b2d00e19d243e2fad794 /drivers/net/wireless/ath/wil6210/pm.c | |
| parent | c6622116c5ae56aec47dd3d63be49cabf591162a (diff) | |
| download | linux-262345265e599fe5ccc75ba435147d17df04bfd6.tar.bz2 | |
wil6210: add statistics for suspend time
Add statistics for total, min and max suspend time, that
calculates the time the 11ad device was in suspend.
Those statistics will help to estimate the power impact
of d3hot feature.
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath/wil6210/pm.c')
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/pm.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/wil6210/pm.c b/drivers/net/wireless/ath/wil6210/pm.c index 45488292a8fc..820ed17ae2d4 100644 --- a/drivers/net/wireless/ath/wil6210/pm.c +++ b/drivers/net/wireless/ath/wil6210/pm.c @@ -300,6 +300,9 @@ int wil_suspend(struct wil6210_priv *wil, bool is_runtime) wil_dbg_pm(wil, "suspend: %s => %d\n", is_runtime ? "runtime" : "system", rc); + if (!rc) + wil->suspend_stats.suspend_start_time = ktime_get(); + return rc; } @@ -309,6 +312,7 @@ int wil_resume(struct wil6210_priv *wil, bool is_runtime) struct net_device *ndev = wil_to_ndev(wil); bool keep_radio_on = ndev->flags & IFF_UP && wil->keep_radio_on_during_sleep; + unsigned long long suspend_time_usec = 0; wil_dbg_pm(wil, "resume: %s\n", is_runtime ? "runtime" : "system"); @@ -326,8 +330,20 @@ int wil_resume(struct wil6210_priv *wil, bool is_runtime) else rc = wil_resume_radio_off(wil); + if (rc) + goto out; + + suspend_time_usec = + ktime_to_us(ktime_sub(ktime_get(), + wil->suspend_stats.suspend_start_time)); + wil->suspend_stats.total_suspend_time += suspend_time_usec; + if (suspend_time_usec < wil->suspend_stats.min_suspend_time) + wil->suspend_stats.min_suspend_time = suspend_time_usec; + if (suspend_time_usec > wil->suspend_stats.max_suspend_time) + wil->suspend_stats.max_suspend_time = suspend_time_usec; + out: - wil_dbg_pm(wil, "resume: %s => %d\n", - is_runtime ? "runtime" : "system", rc); + wil_dbg_pm(wil, "resume: %s => %d, suspend time %lld usec\n", + is_runtime ? "runtime" : "system", rc, suspend_time_usec); return rc; } |