mac80211: scan: fix ms/jiffies mismatch in passive scan overhead#1166
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venkatchimata
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It is only draft, I would like to validate sth on 4.2.0. |
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Thanks for this clue. |
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Added ucron fix to rebuild image for testing too. |
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Local ucrun is already available in the 4.2.0-LTS branch. No need to include that commit
On mediatek/filogic (mac80211 backports 6.12.6) set the passive channel dwell to scan_req->duration minus a fixed overhead (IEEE80211_PASSIVE_MIN_CHANNEL_TIME, HZ/20 = 50ms at CONFIG_HZ=100) to compensate for FW channel switch and wiphy_delayed_work scheduling. Measured channel active time then tracks the requested duration to within ~5ms for durations >= 100ms. Fixes: WIFI-14822 Signed-off-by: Marek Kwaczynski <marek@shasta.cloud>
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Agree, it was only due to preparing test image for validation. Patch rebased. |
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On mediatek/filogic (mac80211 backports 6.12.6) set the passive
channel dwell to scan_req->duration minus a fixed overhead
(IEEE80211_PASSIVE_MIN_CHANNEL_TIME, HZ/20 = 50ms at CONFIG_HZ=100)
to compensate for FW channel switch and wiphy_delayed_work scheduling.
Measured channel active time then tracks the requested duration to
within ~5ms for durations >= 100ms.
Fixes: WIFI-14822