[ofa-general] RDS flow control

[Roland Dreier]

 > Is there a way of changing the RNR retry count back to 0 after establishing
 > the connection?

Yes... quite complicated but possible.  Basically you have to transition
to the QP to the "send queue drained" (SQD) state, change the rnr retry
value in an SQD->SQD transition and then transition back to RTS.  Not
sure if anyone has ever tested that whole operation, so it may or may
not actually work without driver/fw fixes required.

 - R.