netdev - Re: AMD XGBE "phy irq request failed" kernel v5.17-rc2 on V1500B based board

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Date:   Mon, 7 Feb 2022 08:32:51 -0600
From:   Tom Lendacky <thomas.lendacky@....com>
To:     Thomas Kupper <thomas@...per.org>,
        Shyam Sundar S K <Shyam-sundar.S-k@....com>
Cc:     netdev@...r.kernel.org
Subject: Re: AMD XGBE "phy irq request failed" kernel v5.17-rc2 on V1500B
 based board

On 2/5/22 12:14, Thomas Kupper wrote:
> Am 05.02.22 um 16:51 schrieb Tom Lendacky:
>> On 2/5/22 04:06, Thomas Kupper wrote:

>>
>> Reloading the module and specify the dyndbg option to get some 
>> additional debug output.
>>
>> I'm adding Shyam to the thread, too, as I'm not familiar with the 
>> configuration for this chip.
>>
> 
> Right after boot:
> 
> [    5.352977] amd-xgbe 0000:06:00.1 eth0: net device enabled
> [    5.354198] amd-xgbe 0000:06:00.2 eth1: net device enabled
> ...
> [    5.382185] amd-xgbe 0000:06:00.1 enp6s0f1: renamed from eth0
> [    5.426931] amd-xgbe 0000:06:00.2 enp6s0f2: renamed from eth1
> ...
> [    9.701637] amd-xgbe 0000:06:00.2 enp6s0f2: phy powered off
> [    9.701679] amd-xgbe 0000:06:00.2 enp6s0f2: CL73 AN disabled
> [    9.701715] amd-xgbe 0000:06:00.2 enp6s0f2: CL37 AN disabled
> [    9.738191] amd-xgbe 0000:06:00.2 enp6s0f2: starting PHY
> [    9.738219] amd-xgbe 0000:06:00.2 enp6s0f2: starting I2C
> ...
> [   10.742622] amd-xgbe 0000:06:00.2 enp6s0f2: firmware mailbox command 
> did not complete
> [   10.742710] amd-xgbe 0000:06:00.2 enp6s0f2: firmware mailbox reset 
> performed
> [   10.750813] amd-xgbe 0000:06:00.2 enp6s0f2: 10GbE SFI mode set
> [   10.768366] amd-xgbe 0000:06:00.2 enp6s0f2: 10GbE SFI mode set
> [   10.768371] amd-xgbe 0000:06:00.2 enp6s0f2: fixed PHY configuration
> 
> Then after 'ifconfig enp6s0f2 up':
> 
> [  189.184928] amd-xgbe 0000:06:00.2 enp6s0f2: phy powered off
> [  189.191828] amd-xgbe 0000:06:00.2 enp6s0f2: 10GbE SFI mode set
> [  189.191863] amd-xgbe 0000:06:00.2 enp6s0f2: CL73 AN disabled
> [  189.191894] amd-xgbe 0000:06:00.2 enp6s0f2: CL37 AN disabled
> [  189.196338] amd-xgbe 0000:06:00.2 enp6s0f2: starting PHY
> [  189.198792] amd-xgbe 0000:06:00.2 enp6s0f2: 10GbE SFI mode set
> [  189.212036] genirq: Flags mismatch irq 69. 00000000 (enp6s0f2-pcs) vs. 
> 00000000 (enp6s0f2-pcs)
> [  189.221700] amd-xgbe 0000:06:00.2 enp6s0f2: phy irq request failed
> [  189.231051] amd-xgbe 0000:06:00.2 enp6s0f2: phy powered off
> [  189.231054] amd-xgbe 0000:06:00.2 enp6s0f2: stopping I2C
> 

Please ensure that the ethtool msglvl is on for drv and probe. I was 
expecting to see some additional debug messages that I don't see here.

Also, if you can provide the lspci output for the device (using -nn and 
-vv) that might be helpful as well.

Shyam will be the best one to understand what is going on here.

Thanks,
Tom