Re: [PATCH] pseries/eeh: Handle RTAS delay requests in configure_bridge
From: Russell Currey <hidden>
Date: 2016-03-23 00:28:33
On Tue, 2016-03-22 at 11:34 +1100, Russell Currey wrote:
In the configure_pe and 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. Signed-off-by: Russell Currey <redacted>
Forgot to mention this patch should go to stable, 3.10+