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SubjectRe: [PATCH] PCI: pciehp: Report degraded links via link bandwidth notification
Date
On 11/29/2018 5:05 PM, Bjorn Helgaas wrote:
> On Thu, Nov 29, 2018 at 08:13:12PM +0100, Lukas Wunner wrote:
>> I guess the interrupt is shared with hotplug and PME? In that case write
>> a separate pcie_port_service_driver and request the interrupt with
>> IRQF_SHARED. Define a new service type in drivers/pci/pcie/portdrv.h.
>> Amend get_port_device_capability() to check for PCI_EXP_LNKCAP_LBNC.
>
> I really don't like the port driver design. I'd rather integrate
> those services more tightly into the PCI core. But realistically
> that's wishful thinking and may never happen, so this might be the
> most expedient approach.

So, how would it get integrated? I don't like the port service driver
either. It's too dicky on how it creates some new devices that other
drives bind to. If we could have a 1:1 mapping between service drivers
and PCI capabilities, then it might make better sense.

So, do I go the new service driver route?

Alex

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