[V3, 1/2] pseries/eeh: Handle RTAS delay requests in configure_bridge
mpe at ellerman.id.au
Tue May 31 20:17:10 AEST 2016
On Thu, 2016-07-04 at 06:28:26 UTC, Russell Currey wrote:
> In the "ibm,configure-pe" and "ibm,configure-bridge" RTAS calls, the
> spec states that values of 9900-9905 can be returned, indicating that
> software should delay for 10^x (where x is the last digit, i.e. 990x)
> milliseconds and attempt the call again. Currently, the kernel doesn't
> know about this, and respecting it fixes some PCI failures when the
> hypervisor is busy.
> The delay is capped at 0.2 seconds.
> Cc: <stable at vger.kernel.org> # 3.10+
> Signed-off-by: Russell Currey <ruscur at russell.cc>
> Acked-by: Gavin Shan <gwshan at linux.vnet.ibm.com>
Applied to powerpc fixes, thanks.
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