[ofa-general] Recalculated Queue Sizes caused mthca CatastrophicErrors

Sean Hefty sean.hefty at intel.com
Wed Feb 20 14:22:53 PST 2008


>But this issue still raises questions in my mind how an application
>_should_ handle this condition?  IE If the app is required to ensure the
>CQ is big enough, how does it deal with the case where the driver
>allocates a bigger QP?  Resizing the QP after creating the QP and
>discovering via a query that the QP is too big for the CQs?

The app doesn't have to post WRs until the QP is full.  If it does plan on doing
that, then I would say that the app should resize the CQ.

- Sean




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