Date: Tue, 28 May 2013 01:02:12 +0400 From: Lev Serebryakov <lev@FreeBSD.org> To: Adrian Chadd <adrian@freebsd.org> Cc: freebsd-wireless@freebsd.org Subject: Re: [rft] please test -HEAD ath; lots of TX changes Message-ID: <711055633.20130528010212@serebryakov.spb.ru> In-Reply-To: <CAJ-Vmo=qHfCieZn7CQweB8psREmiJQe4m3y_3FGcvrbK0CZOtw@mail.gmail.com> References: <CAJ-VmongHgfCBPFpnMLi_5ppVbz%2BtOXVSOzRmCF=yL8FtnMBHQ@mail.gmail.com> <372806514.20130519141024@serebryakov.spb.ru> <CAJ-Vmo=Ak=Af7mdc2LP0niSrGbHsVAFOAen16wCLaEXrj2A82A@mail.gmail.com> <1106213329.20130519193856@serebryakov.spb.ru> <CAJ-VmonobPnfd4u9QnA%2BaCWDWJZYxWFV_N4PwusLyZxiK%2BuHoA@mail.gmail.com> <1377052407.20130519195416@serebryakov.spb.ru> <CAJ-Vmon3UXXEf-fJ6Cc29qRF1U31UJegP-fR3NQ5_zGvv1tRsg@mail.gmail.com> <5931014.20130519213437@serebryakov.spb.ru> <CAJ-VmokuwG3UbCZscR9rTKWtah0gEM4rd0L6kHM6jcx_tCaioQ@mail.gmail.com> <1596494929.20130519223744@serebryakov.spb.ru> <CAJ-Vmokhtz_K7ne8EukbZHQa9QLY3ughYTkHmmqc-ktpov6Uuw@mail.gmail.com> <456290883.20130520124616@serebryakov.spb.ru> <CAJ-Vmo=qHfCieZn7CQweB8psREmiJQe4m3y_3FGcvrbK0CZOtw@mail.gmail.com>
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Hello, Adrian. You wrote 27 мая 2013 г., 11:29:29: AC> Would you mind re-testing with what's now in -HEAD? Ok, now I can not "force" connection NOT TO PICK UP n-rates (without disabling N on sever or client). Performance is better, than usual (150-180Mbit/s UDP), and SOMETIMES here are such messages: May 28 00:40:51 gateway kernel: ath0: ath_tx_tid_bar_suspend: tid=0, bar_wait=0, bar_tx=0, called May 28 00:40:51 gateway kernel: ath0: ath_tx_tid_bar_tx_ready: c4:85:08:3f:9e:c2: TID=0, bar ready May 28 00:40:51 gateway kernel: ath0: ath_tx_tid_bar_tx: c4:85:08:3f:9e:c2: TID=0, called May 28 00:40:51 gateway kernel: ath0: ath_tx_tid_bar_tx: c4:85:08:3f:9e:c2: TID=0, new BAW left edge=186 May 28 00:40:51 gateway kernel: ath0: ath_bar_response: c4:85:08:3f:9e:c2: called; txa_tid=0, atid->tid=0, status=0, attempts=1 May 28 00:40:51 gateway kernel: ath0: ath_tx_tid_bar_unsuspend: c4:85:08:3f:9e:c2: TID=0, called May 28 00:40:52 gateway kernel: ath0: ath_tx_tid_bar_suspend: tid=0, bar_wait=0, bar_tx=0, called May 28 00:40:52 gateway kernel: ath0: ath_tx_tid_bar_tx_ready: c4:85:08:3f:9e:c2: TID=0, bar ready May 28 00:40:52 gateway kernel: ath0: ath_tx_tid_bar_tx: c4:85:08:3f:9e:c2: TID=0, called May 28 00:40:52 gateway kernel: ath0: ath_tx_tid_bar_tx: c4:85:08:3f:9e:c2: TID=0, new BAW left edge=3517 May 28 00:40:52 gateway kernel: ath0: ath_bar_response: c4:85:08:3f:9e:c2: called; txa_tid=0, atid->tid=0, status=0, attempts=1 May 28 00:40:52 gateway kernel: ath0: ath_tx_tid_bar_unsuspend: c4:85:08:3f:9e:c2: TID=0, called Which correlates with dropping of bandwidth to 90Mbit/s for one second. But no re-association problems, no "20-30Mbit/s" problem. And I've tried to power-cycle client and AP, it still pick up N rates from first packet now! When I disable N on client, it shows stable 30Mbit/s (no 54m though :)), but still no de/re-association problems for 600 seconds. But, I stress this out: there was NO way to get non-N rates when N was enabled on both ends, there was NO auth/association problems for several 600-seconds runs. And, yes, in my previous experiments, auth/association problems were only in situation when two N-enabled parties used non-N rates. -- // Black Lion AKA Lev Serebryakov <lev@FreeBSD.org>help
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