Re: [PATCH v2 1/2] PCI: quirk fixup for cavium invalid sriov link value.

[Bjorn Helgaas]

On Tue, Aug 23, 2016 at 04:27:14PM -0700, Omer Khaliq wrote:
> From: Ananth Jasty <Ananth.Jasty@xxxxxxxxxx>
> 
> Cavium cn88xx hardware presents an incorrect SR-IOV Function
> Dependency Link, add a fixup quirk for the affected devices.
> 
> Acked-by: David Daney <david.daney@xxxxxxxxxx>
> Signed-off-by: Ananth Jasty <Ananth.Jasty@xxxxxxxxxx>
> Signed-off-by: Omer Khaliq <okhaliq@xxxxxxxxxxxxxxxxxx>

Acked-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>

If you update this patch for any reason, please update the subject
like this:

  -PCI: quirk fixup for cavium invalid sriov link value.
  +PCI: Fix incorrect Cavium cn8xx SR-IOV Function Dependency Link

This will make "git log --oneline drivers/pci/quirks.c" show more
useful information and look more consistent.

I assume somebody else will merge this patch along with your HWRNG
driver.

> ---
>  drivers/pci/quirks.c | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
> index 37ff015..5980aae 100644
> --- a/drivers/pci/quirks.c
> +++ b/drivers/pci/quirks.c
> @@ -834,6 +834,17 @@ static void quirk_amd_ioapic(struct pci_dev *dev)
>  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD,	PCI_DEVICE_ID_AMD_VIPER_7410,	quirk_amd_ioapic);
>  #endif /* CONFIG_X86_IO_APIC */
>  
> +#ifdef CONFIG_ARM64
> +
> +static void quirk_cavium_sriov_rnm_link(struct pci_dev *dev)
> +{
> +	/* Fix for improper SRIOV configuration on Cavium cn88xx  RNM device */
> +	if (dev->subsystem_device == 0xa118)
> +		dev->sriov->link = dev->devfn;
> +}
> +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CAVIUM, 0xa018, quirk_cavium_sriov_rnm_link);
> +#endif
> +
>  /*
>   * Some settings of MMRBC can lead to data corruption so block changes.
>   * See AMD 8131 HyperTransport PCI-X Tunnel Revision Guide
> -- 
> 1.9.1
> 
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel