[RESEND] cxl: Route eeh events to all slices for pci_channel_io_perm_failure state

[Michael Ellerman]

On Thu, 2017-02-23 at 03:27:26 UTC, Vaibhav Jain wrote:
> Fix a boundary condition where in some cases an eeh event with
> state == pci_channel_io_perm_failure wont be passed on to a driver
> attached to the virtual pci device associated with a slice. This will
> happen in case the slice just before (n-1) doesn't have any vPHB bus
> associated with it, that results in an early return from
> cxl_pci_error_detected callback.
> 
> With state==pci_channel_io_perm_failure, the adapter will be removed
> irrespective of the return value of cxl_vphb_error_detected. So we now
> always return PCI_ERS_RESULT_DISCONNECTED for this case i.e even if
> the AFU isn't using a vPHB (currently returns PCI_ERS_RESULT_NONE).
> 
> Fixes: e4f5fc001a6("cxl: Do not create vPHB if there are no AFU configuration records")
> Signed-off-by: Vaibhav Jain <vaibhav at linux.vnet.ibm.com>
> Reviewed-by: Matthew R. Ochs <mrochs at linux.vnet.ibm.com>
> Reviewed-by: Andrew Donnellan <andrew.donnellan at au1.ibm.com>
> Acked-by: Frederic Barrat <fbarrat at linux.vnet.ibm.com>

Applied to powerpc fixes, thanks.

https://git.kernel.org/powerpc/c/07f5ab6002a4f0b633f3495157166f

cheers