c1782ce034
This isn't strictly required to TX (at least non-agg and non-HT40, non-short-GI) frames; but as it needs to be done anyway, just get it done. Linux ath9k uses the rate scenario style path for -all- packets, legacy or otherwise. This code does much the same. Beacon TX still uses the legacy, non-rate-scenario TX descriptor setup. Ath9k also does this. This 11n rate scenario path is only called for chips in the AR5416 HAL; legacy chips use the previous interface for TX'ing.