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Message-ID: <RO2P215MB1938BD13105900F3525E0FE7A721A@RO2P215MB1938.LAMP215.PROD.OUTLOOK.COM>
Date: Sun, 25 Jun 2023 16:11:20 -0500
From: Sardonimous <sardonimous@...mail.com>
To: Larry Finger <Larry.Finger@...inger.net>,
Arnd Bergmann <arnd@...db.de>,
Bagas Sanjaya <bagasdotme@...il.com>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Linux Regressions <regressions@...ts.linux.dev>,
Linux Wireless <linux-wireless@...r.kernel.org>,
Netdev <netdev@...r.kernel.org>
Cc: Michael Büsch <m@...s.ch>,
kernel test robot <lkp@...el.com>,
Simon Horman <simon.horman@...igine.com>,
Kalle Valo <kvalo@...nel.org>
Subject: Re: Fwd: After kernel 6.3.7 or 6.3.8 b43 driver fails
On 6/25/23 13:17, Larry Finger wrote:
> On 6/25/23 13:12, Arnd Bergmann wrote:
>> On Sun, Jun 25, 2023, at 18:58, Sardonimous wrote:
>>> I have been unable to get DMA to work in the past. So I have been
>>> configuring it with PIO=1 (/etc/modprobe,d/b43.conf):
>>>
>>> options b43 pio=1 qos=0
>>>
>>
>> I think the qos=0 parameter is what causes the WARN_ON(), as that
>> causes the use of only one queue, while the warning happens when
>> tx function iterates over all the queues and warns that they don't
>> exist.
>
> I agree and suggest running with no options. If we need debug, we can
> turn it on later.
>
> Larry
Sure. Of course, this is what I started out with years ago (2017?) when
I was trying to get this to work.
Now:
Linux version 6.3.9-arch1-1 (linux@...hlinux) (gcc (GCC) 13.1.1
20230429, GNU ld (GNU Binutils) 2.40.0) #1 SMP PREEMPT_DYNAMIC Wed, 21
Jun 2023 20:46:20 +0000
This is the sort of loop I get (dmesg | grep b43):
[ 31.979539] b43-pci-bridge 0000:02:00.0: Sonics Silicon Backplane
found on PCI device 0000:02:00.0
[ 35.239389] b43-phy0: Broadcom 4322 WLAN found (core revision 16)
[ 35.275018] b43-phy0: Found PHY: Analog 8, Type 4 (N), Revision 4
[ 35.275046] b43-phy0: Found Radio: Manuf 0x17F, ID 0x2056, Revision
3, Version 0
[ 66.890631] b43-phy0: Loading firmware version 784.2 (2012-08-15
21:35:19)
[ 67.437162] b43-phy0 ERROR: DMA RX reset timed out
[ 67.498976] b43 ssb0:0: Timeout waiting for bitmask 01800000 on
register 0F90 to clear
[ 67.707177] b43-phy0: Loading firmware version 784.2 (2012-08-15
21:35:19)
[ 391.127300] b43-phy0 ERROR: DMA RX reset timed out
[ 391.360514] b43-phy0 ERROR: DMA TX reset timed out
[ 391.382127] b43 ssb0:0: Timeout waiting for bitmask 01800000 on
register 0F90 to clear
[ 391.590659] b43-phy0: Loading firmware version 784.2 (2012-08-15
21:35:19)
[ 709.123840] b43-phy0 ERROR: DMA RX reset timed out
[ 709.357235] b43-phy0 ERROR: DMA TX reset timed out
[ 709.378623] b43 ssb0:0: Timeout waiting for bitmask 01800000 on
register 0F90 to clear
[ 709.573851] b43-phy0: Loading firmware version 784.2 (2012-08-15
21:35:19)
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