Re: Bug report in reg_user_mr in exe

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On Tue, Jun 13, 2023 at 11:54:46AM -0500, Bob Pearson wrote:
> On 6/13/23 11:52, Jason Gunthorpe wrote:
> > On Tue, Jun 13, 2023 at 11:26:55AM -0500, Bob Pearson wrote:
> >> Jason,
> >>
> >> Recently the code in rxe_reg_user_mr was changed to check if the driver supported the
> >> access flags. Since the rxe driver does nothing about relaxed ordering. I assumed that the
> >> driver didn't support that option but it turns out that this breaks the perf tests which
> >> request relaxed ordering by default.
> > 
> > Sounds like rxe is checking the flags wrong, there is a set of
> > optional access flags that should be ignored by the driver.
> > 
> > Jason
> 
> OK. That's easy. I'm just embarrassed I broke ib_send_bw.
> So mask off the optional ones and check the rest?

Yes, there is a constant for it too

Jason



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