Date: Mon, 16 May 2005 21:59:35 GMT From: Sam Leffler <sam@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 77084 for review Message-ID: <200505162159.j4GLxZfP051243@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=77084 Change 77084 by sam@sam_laptop on 2005/05/16 21:59:27 don't do bg scanning when in turbo mode on a dynamic turbo channel (bad idea); fixup a comment while in the vicinity Affected files ... .. //depot/projects/vap/sys/net80211/ieee80211_input.c#11 edit Differences ... ==== //depot/projects/vap/sys/net80211/ieee80211_input.c#11 (text+ko) ==== @@ -2321,12 +2321,20 @@ ieee80211_parse_dothparams(vap, scan.doth, wh); if ((ic->ic_flags & IEEE80211_F_SCAN) == 0) { /* - * If no data frames have come through - * recently and it's been a while since the - * last background scan, kick off a new - * background scan. + * Check if it's the right time to do a + * background scan. Background scanning must + * be enabled and we must not be operating in + * turbo phase of dynamic turbo mode. Then, + * it's been a while since the last background + * scan and if no data frames have come through + * recently, kick off a scan. Note that this + * is the mechanism by which a background scan + * is started _and_ continued each time we + * return on-channel to receive a beacon from + * our ap. */ if ((vap->iv_flags & IEEE80211_F_BGSCAN) && + !IEEE80211_IS_CHAN_DTURBO(ic->ic_curchan) && ticks - ic->ic_lastscan >= vap->iv_bgscanintvl && ticks - ic->ic_lastdata >= vap->iv_bgscanidle) ieee80211_bg_scan(vap);
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