[PATCH] Documentation: PCI: pci-error-recovery: rearrange the general sequence

Oliver O'Halloran oohall at gmail.com
Fri Jun 18 17:21:32 AEST 2021


On Fri, Jun 18, 2021 at 4:05 PM Wesley Sheng <wesley.sheng at amd.com> wrote:
>
> Reset_link() callback function was called before mmio_enabled() in
> pcie_do_recovery() function actually, so rearrange the general
> sequence betwen step 2 and step 3 accordingly.

I don't think this is true in all cases. If pcie_do_recovery() is
called with state==pci_channel_io_normal (i.e. non-fatal AER) the link
won't be reset. EEH (ppc PCI error recovery thing) also uses
.mmio_enabled() as described.


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