Messages in this thread | | | From | Casey Leedom <> | Subject | Re: [PATCH v4 4/6] infiniband: cxgb4: Eliminate duplicate barriers on weakly-ordered archs | Date | Thu, 22 Mar 2018 22:02:52 +0000 |
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Okay, thanks Sinan. I ~think~ we're on the same page here.
Our guy Michael Werner is carefully going through our drivers with Steve Wise. I'd like to let them work on the changes with a lot of thought and testing before diving in too far.
We had thought that we could get around the lack of a real Relaxed Ordering Write on the PowerPC via the __raw_write*() API, but that isn't really part of the defined API and various platforms define that API differently (some doing PCI Byte Ordering rearrangements and some not). I think that we're going to have to work with the PowerPC platform folks to get a real Relaxed Ordering Write.
Casey
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