Re: Getting Bullseye/Bookworm kernel running on Loongson 3A boards

Re: Getting Bullseye/Bookworm kernel running on Loongson 3A boards

[Thomas Bogendoerfer]

On Sun, Jul 23, 2023 at 06:16:39PM +0200, Aurelien Jarno wrote:
> Dear MIPS porters,
> 
> DSA would like to upgrade the remaining mips*el buildds to bullseye (and
> later to bookworm), however we have trouble running the Bullseye or
> Bookworm kernel on the LS3A-RS780-1w ones.
> 
> Both Bullseye and Bookworm kernels boot fine up to the userland, but the
> network card does not work. It *seems* to an interrupt issue as the
> corresponding counter in /proc/interrupts does not change, and in
> addition the kernel logs show the following warnings:
> 
> [    5.077846] pcieport 0000:00:02.0: of_irq_parse_pci: failed with rc=-22
> [    5.084744] pcieport 0000:00:03.0: of_irq_parse_pci: failed with rc=-22
> [    5.170772] ahci 0000:00:11.0: of_irq_parse_pci: failed with rc=-22
> [    7.376554] pci 0000:00:07.0: of_irq_parse_pci: failed with rc=-22
> [    7.444769] ata_generic 0000:00:14.1: of_irq_parse_pci: failed with rc=-22
> [    7.495993] ehci-pci 0000:00:12.2: of_irq_parse_pci: failed with rc=-22
> [    7.624868] ehci-pci 0000:00:13.2: of_irq_parse_pci: failed with rc=-22
> [    7.753230] ohci-pci 0000:00:12.0: of_irq_parse_pci: failed with rc=-22
> [    7.886362] ohci-pci 0000:00:12.1: of_irq_parse_pci: failed with rc=-22
> [    8.018045] ohci-pci 0000:00:13.0: of_irq_parse_pci: failed with rc=-22
> [    8.150168] ohci-pci 0000:00:13.1: of_irq_parse_pci: failed with rc=-22
> [    8.294391] ohci-pci 0000:00:14.5: of_irq_parse_pci: failed with rc=-22
> [   18.398222] snd_hda_intel 0000:00:14.2: of_irq_parse_pci: failed with rc=-22
> [   18.547932] pci 0000:00:01.0: of_irq_parse_pci: failed with rc=-22
> 
> Any idea how to solve this issue? I have attached a full 6.1 kernel boot
> log for reference.

asking on linux-mips@vger.kernel.org might get more feedback on the issue...
From the quick look at kernel code and device tree of the board IMHO
the DTS is missing interrupt mapping entries for the PCI bus.

Could someone from Loongson have a look at the issue ?

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]

Re: Getting Bullseye/Bookworm kernel running on Loongson 3A boards

[Jiaxun Yang]

在 2023/8/6 6:20, Thomas Bogendoerfer 写道:
> On Sun, Jul 23, 2023 at 06:16:39PM +0200, Aurelien Jarno wrote:
>> Dear MIPS porters,
>>
>> DSA would like to upgrade the remaining mips*el buildds to bullseye (and
>> later to bookworm), however we have trouble running the Bullseye or
>> Bookworm kernel on the LS3A-RS780-1w ones.
>>
>> Both Bullseye and Bookworm kernels boot fine up to the userland, but the
>> network card does not work. It *seems* to an interrupt issue as the
>> corresponding counter in /proc/interrupts does not change, and in
>> addition the kernel logs show the following warnings:
>>
>> [    5.077846] pcieport 0000:00:02.0: of_irq_parse_pci: failed with rc=-22
>> [    5.084744] pcieport 0000:00:03.0: of_irq_parse_pci: failed with rc=-22
>> [    5.170772] ahci 0000:00:11.0: of_irq_parse_pci: failed with rc=-22
>> [    7.376554] pci 0000:00:07.0: of_irq_parse_pci: failed with rc=-22
>> [    7.444769] ata_generic 0000:00:14.1: of_irq_parse_pci: failed with rc=-22
>> [    7.495993] ehci-pci 0000:00:12.2: of_irq_parse_pci: failed with rc=-22
>> [    7.624868] ehci-pci 0000:00:13.2: of_irq_parse_pci: failed with rc=-22
>> [    7.753230] ohci-pci 0000:00:12.0: of_irq_parse_pci: failed with rc=-22
>> [    7.886362] ohci-pci 0000:00:12.1: of_irq_parse_pci: failed with rc=-22
>> [    8.018045] ohci-pci 0000:00:13.0: of_irq_parse_pci: failed with rc=-22
>> [    8.150168] ohci-pci 0000:00:13.1: of_irq_parse_pci: failed with rc=-22
>> [    8.294391] ohci-pci 0000:00:14.5: of_irq_parse_pci: failed with rc=-22
>> [   18.398222] snd_hda_intel 0000:00:14.2: of_irq_parse_pci: failed with rc=-22
>> [   18.547932] pci 0000:00:01.0: of_irq_parse_pci: failed with rc=-22
>>
>> Any idea how to solve this issue? I have attached a full 6.1 kernel boot
>> log for reference.
> asking on linux-mips@vger.kernel.org might get more feedback on the issue...
>  From the quick look at kernel code and device tree of the board IMHO
> the DTS is missing interrupt mapping entries for the PCI bus.
>
> Could someone from Loongson have a look at the issue ?

Hi,

This error meesage is expected because we are not using devicetree to parse
interrupt, it is falling back to legacy PCI interrupt on i8259.

```

static int loongson_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
     int irq;
     u8 val;

     irq = of_irq_parse_and_map_pci(dev, slot, pin);
     if (irq > 0)
         return irq;

     /* Care i8259 legacy systems */
     pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &val);
     /* i8259 only have 15 IRQs */
     if (val > 15)
         return 0;

     return val;
}
```

Is there any other error message regarding NIC in dmesg?

Thanks
- Jiaxun

>
> Thomas.
>