[Skiboot] [PATCH] ipmi: Reduce ipmi_queue_msg_sync() polling loop time to 10ms

Stewart Smith stewart at linux.ibm.com
Mon Nov 19 16:59:54 AEDT 2018

Stewart Smith <stewart at linux.ibm.com> writes:
> On a plain boot, this reduces the time spent in OPAL by ~170ms on
> p9dsu. This is due to hiomap (currently) using synchronous IPMI
> messages.
> It will also *significantly* reduce latency on runtime flash
> operations, as we'll spend typically 10-20ms in OPAL rather than
> 100-200ms. It's not an ideal solution to that, but it's a quick
> and obvious win for jitter.
> Cc: stable
> Signed-off-by: Stewart Smith <stewart at linux.ibm.com>

Merged to master as of 28bf1faf44cd6bffcf3df0c00578b279f3faeab1

and should hit 6.0.x as of a41470c9492039947fb6e5ed898017f7deb7bece
assuming this in-progress test goes well

Stewart Smith
OPAL Architect, IBM.

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