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Date:      Wed, 3 Mar 2021 08:12:05 -0800
From:      Adrian Chadd <adrian.chadd@gmail.com>
To:        =?UTF-8?B?RG9tYWdvaiBTbW9sxI1pxIc=?= <rank1seeker@gmail.com>
Cc:        "freebsd-hackers@freebsd.org" <hackers@freebsd.org>,  "freebsd-wireless@freebsd.org" <freebsd-wireless@freebsd.org>
Subject:   Re: AR9227/AR9287 unresponsive after some time
Message-ID:  <CAJ-VmoncTihkskx2y31RyycCe9p=JkAQm2WQ7xC5Jy7Mk1u3PA@mail.gmail.com>
In-Reply-To: <20210303112803.0000260f@gmail.com>
References:  <20210303112803.0000260f@gmail.com>

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hi!

Yeah, there's been some long standing calibration issues with the 9227
that i've never figured out :(


-a

On Wed, 3 Mar 2021 at 02:27, Domagoj Smol=C4=8Di=C4=87 <rank1seeker@gmail.c=
om> wrote:
>
> For about 5 years now I have:
> --
> ath1@pci0:3:2:0:        class=3D0x028000 card=3D0x0300168c chip=3D0x002d1=
68c rev=3D0x01 hdr=3D0x00
>     vendor     =3D 'Qualcomm Atheros'
>     device     =3D 'AR9227 Wireless Network Adapter'
>     class      =3D network
> --
> ath1: <Atheros 9227> mem 0xf1040000-0xf104ffff irq 5 at device 2.0 on pci=
3
> ath1: [HT] enabling HT modes
> ath1: [HT] enabling short-GI in 20MHz mode
> ath1: [HT] 1 stream STBC receive enabled
> ath1: [HT] 1 stream STBC transmit enabled
> ath1: [HT] 2 RX streams; 2 TX streams
> ath1: AR9227 mac 384.2 RF5133 phy 15.15
> ath1: 2GHz radio: 0x0000; 5GHz radio: 0x00c0
> --
>
> Everything is perfects upon device's fresh config and init.
> There were and always are problems with this card, AFTER some time passes=
.
> It's like it simply becomes unresponsive.
>
> Now at 12.2-RELEASE-p3 - i386, after some time passes:
>  1) As station/client =3D> in associated state it simply stops transmitti=
ng packets
>     It can't ping it's AP!
>     # service netif restart ..., "fixes" issue.
>  2) As AP =3D> it ignores it's clients and simply stops transmitting pack=
ets
>     And WORST, slowly but surely freezes whole OS!
>     Even console becomes unresponsive and only hard reset helps!
>
> Where should I look at?
> What should I do?
>
> PS: Take a note that SAME setup poses no problem for:
> --
> ath0@pci0:3:1:0:        class=3D0x020000 card=3D0x3a131186 chip=3D0x00131=
68c rev=3D0x01 hdr=3D0x00
>     vendor     =3D 'Qualcomm Atheros'
>     device     =3D 'AR5212/5213/2414 Wireless Network Adapter'
>     class      =3D network
>     subclass   =3D ethernet
> --
>
> I saw in section 'Known chipset issues/limitations/bugs':
>     interrupt read-and-clear bug
> Has anyone yet found a way to deal with it?
>
> PS: freebsd-wireless@ =3D> I'm not on a mailing list, so keep me posted.
>
>
> Thx in advance,
> Domagoj Smol=C4=8Di=C4=87
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