Re: ATH9 driver issues on ARM64

Marc Zyngier
2016-12-08T19:09:38Z

On 08/12/16 18:33, Bharat Kumar Gogada wrote:
>> On 08/12/16 15:29, Bharat Kumar Gogada wrote:
>>
>> Two things:
>>
>>> Here is the cat /proc/interrupts (after we do interface up):
>>>
>>> root@:~# ifconfig wlan0 up
>>> [ 1548.926601] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
>>> root@Xilinx-ZCU102-2016_3:~# cat /proc/interrupts
>>> CPU0 CPU1 CPU2 CPU3
>>> 1: 0 0 0 0 GICv2 29 Edge arch_timer
>>> 2: 19873 20058 19089 17435 GICv2 30 Edge arch_timer

By the way, please use a recent kernel. Seeing edge here means you're
running with something that is a bit old (and broken). And since you
haven't even said what revision of the kernel you're using, hslping you
is not an easy task. tglx told you something similar about a week ago.

>>> 12: 0 0 0 0 GICv2 156 Level zynqmp-dma
>>> 13: 0 0 0 0 GICv2 157 Level zynqmp-dma
>>> 14: 0 0 0 0 GICv2 158 Level zynqmp-dma
>>> 15: 0 0 0 0 GICv2 159 Level zynqmp-dma
>>> 16: 0 0 0 0 GICv2 160 Level zynqmp-dma
>>> 17: 0 0 0 0 GICv2 161 Level zynqmp-dma
>>> 18: 0 0 0 0 GICv2 162 Level zynqmp-dma
>>> 19: 0 0 0 0 GICv2 163 Level zynqmp-dma
>>> 20: 0 0 0 0 GICv2 164 Level Mali_GP_MMU, Mali_GP,
>> Mali_PP0_MMU, Mali_PP0, Mali_PP1_MMU, Mali_PP1
>>
>> I'm not even going to consider looking at something that is running out of tree
>> code. So please start things with a fresh kernel that doesn't contain stuff we
>> can't debug.
>>
> Ok will test with fresh kernel.
>
>>> 30: 0 0 0 0 GICv2 95 Level eth0, eth0
>>> 206: 314 0 0 0 GICv2 49 Level cdns-i2c
>>> 207: 40 0 0 0 GICv2 50 Level cdns-i2c
>>> 209: 0 0 0 0 GICv2 150 Level nwl_pcie:misc
>>> 214: 12 0 0 0 GICv2 47 Level ff0f0000.spi
>>> 215: 0 0 0 0 GICv2 58 Level ffa60000.rtc
>>> 216: 0 0 0 0 GICv2 59 Level ffa60000.rtc
>>> 217: 0 0 0 0 GICv2 165 Level ahci-ceva[fd0c0000.ahci]
>>> 218: 61 0 0 0 GICv2 81 Level mmc0
>>> 219: 0 0 0 0 GICv2 187 Level arm-smmu global fault
>>> 220: 471 0 0 0 GICv2 53 Level xuartps
>>> 223: 0 0 0 0 GICv2 154 Level fd4c0000.dma
>>> 224: 3 0 0 0 dummy 1 Edge ath9k
>>
>> What is this "dummy" controller? And if that's supposed to be a legacy interrupt
>> from the PCI device, it has the wrong trigger.
>
> Yes it is for legacy interrupt, wrong trigger means ?

Aren't legacy interrupts supposed to be *level* triggered, and not edge?

Thanks,

M.
--
Jazz is not dead. It just smells funny...