Re: [patch 2.6.13-rc3] pci: restore BAR values after D3hot->D0 for devices that need it

Jesse Brandeburg
2005-08-02T16:42:09Z

On 7/27/05, John W. Linville <linville@tuxdriver.com> wrote:
> Some PCI devices (e.g. 3c905B, 3c556B) lose all configuration
> (including BARs) when transitioning from D3hot->D0. This leaves such
> a device in an inaccessible state. The patch below causes the BARs
> to be restored when enabling such a device, so that its driver will
> be able to access it.
>

Is it just me or will this stuff help the kexec guys as well? They seem
to have lots of problems because drivers put the device into D3 before the
reload of the new kernel. I think this might help.

Jesse