AR9227/AR9287 unresponsive after some time

[Adrian Chadd]

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 Smolčić <rank1seeker at gmail.com> wrote:
>
> For about 5 years now I have:
> --
> ath1 at pci0:3:2:0:        class=0x028000 card=0x0300168c chip=0x002d168c rev=0x01 hdr=0x00
>     vendor     = 'Qualcomm Atheros'
>     device     = 'AR9227 Wireless Network Adapter'
>     class      = network
> --
> ath1: <Atheros 9227> mem 0xf1040000-0xf104ffff irq 5 at device 2.0 on pci3
> 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 => in associated state it simply stops transmitting packets
>     It can't ping it's AP!
>     # service netif restart ..., "fixes" issue.
>  2) As AP => it ignores it's clients and simply stops transmitting packets
>     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 at pci0:3:1:0:        class=0x020000 card=0x3a131186 chip=0x0013168c rev=0x01 hdr=0x00
>     vendor     = 'Qualcomm Atheros'
>     device     = 'AR5212/5213/2414 Wireless Network Adapter'
>     class      = network
>     subclass   = 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@ => I'm not on a mailing list, so keep me posted.
>
>
> Thx in advance,
> Domagoj Smolčić
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