Hi, When using HW_PS and running Downlink only traffic like UDP-RX, mac80211 has the mechanism to not to enter power-save (postpone the dynamic ps timer).
But if we are already in power-save it continues to stay in PS and retrieves the frames, for large traffic this is not acceptable. The standard doesn't say anything, its left to vendor to implement their own mechanism. I have the below questions 1) Are any other vendors seeing this issue? 2) Are they using proprietary algorithms to solve this, implemented in their HW/FW? 3) If yes, how are they keeping the mac80211 and FW FSM in sync, as the driver cannot request/indicate the power save state to mac80211. (no feedback path). IMHO, a) we should implemented a feedback path, where the vendor can implement proprietary mechanism to handle this and inform/request mac80211 for a specific power save state. b) mac80211 just conveys the user/system preferences to the driver and driver handles the FSM on when to enter/exit PS? (true HW_PS). Any suggestions/comments? -- Thanks, Regards, Chaitanya T K. -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
