Date: Fri, 15 Jun 2012 01:20:05 GMT From: dfilter@FreeBSD.ORG (dfilter service) To: freebsd-wireless@FreeBSD.org Subject: Re: kern/169084: commit references a PR Message-ID: <201206150120.q5F1K5Wn052454@freefall.freebsd.org>
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The following reply was made to PR kern/169084; it has been noted by GNATS. From: dfilter@FreeBSD.ORG (dfilter service) To: bug-followup@FreeBSD.org Cc: Subject: Re: kern/169084: commit references a PR Date: Fri, 15 Jun 2012 01:16:13 +0000 (UTC) Author: adrian Date: Fri Jun 15 01:15:59 2012 New Revision: 237108 URL: http://svn.freebsd.org/changeset/base/237108 Log: Convert ath(4) to just use ieee80211_suspend_all() and ieee80211_resume_all(). The existing code tries to use the beacon miss timer to signal that the AP has gone away. Unfortunately this doesn't seem to be behaving itself. I'll try to investigate why this is for the sake of completeness. The result is the STA will stay "associated" to the AP it was associated with when it suspended. It never receives a bmiss notification so it never tries reassociating. PR: kern/169084 Modified: head/sys/dev/ath/if_ath.c Modified: head/sys/dev/ath/if_ath.c ============================================================================== --- head/sys/dev/ath/if_ath.c Thu Jun 14 22:19:23 2012 (r237107) +++ head/sys/dev/ath/if_ath.c Fri Jun 15 01:15:59 2012 (r237108) @@ -1310,8 +1310,13 @@ ath_suspend(struct ath_softc *sc) sc->sc_resume_up = (ifp->if_flags & IFF_UP) != 0; if (ic->ic_opmode == IEEE80211_M_STA) + /* + * This has been disabled - see PR kern/169084. + */ +#if 0 ath_stop(ifp); else +#endif ieee80211_suspend_all(ic); /* * NB: don't worry about putting the chip in low power @@ -1379,6 +1384,15 @@ ath_resume(struct ath_softc *sc) ath_hal_setledstate(ah, HAL_LED_INIT); if (sc->sc_resume_up) { + /* + * This particular feature doesn't work at the present, + * at least on the 802.11n chips. It's quite possible + * that the STA Beacon timers aren't being configured + * properly. + * + * See PR kern/169084. + */ +#if 0 if (ic->ic_opmode == IEEE80211_M_STA) { ath_init(sc); ath_hal_setledstate(ah, HAL_LED_RUN); @@ -1392,7 +1406,9 @@ ath_resume(struct ath_softc *sc) */ ath_beacon_config(sc, NULL); sc->sc_syncbeacon = 1; + ieee80211_resume_all(ic); } else +#endif ieee80211_resume_all(ic); } _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscribe@freebsd.org"
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