Re: [PATCH resend] pci: ARI is a PCIe v2 feature

[Jesse Barnes]

On Wed, 13 Jul 2011 10:14:33 -0700
Chris Wright <chrisw@xxxxxxxxxxxx> wrote:

> The function pci_enable_ari() may mistakenly set the downstream port
> of a v1 PCIe switch in ARI Forwarding mode.  This is a PCIe v2 feature,
> and with an SR-IOV device on that switch port believing the switch above
> is ARI capable it may attempt to use functions 8-255, translating into
> invalid (non-zero) device numbers for that bus.  This has been seen
> to cause Completion Timeouts and general misbehaviour including hangs
> and panics.

Applied, thanks.

-- 
Jesse Barnes, Intel Open Source Technology Center
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/