[ath9k-devel] Ack and Block Ack processing

[Olivier Marce <Olivier.Marce@alcatel-lucent.com>]

Thanks for the quick and precise answer.

Then, I wonder is there is a way to be notified of sending/receiving of 
frames by the HW. For example, can we be notified of ACK (or BA) 
received and processed by the HW, or by frame retransmited by the HW ?

Thanks

On 03/02/2014 17:29, Adrian Chadd wrote:
> Hi,
>
> So on the Atheros NICs, the block-acks are generated by the receiver
> in hardware and processed by the transmitter in hardware; you then get
> a bitmap in the TX completion descriptor telling you which frames did
> succeed/fail.
>
> The TX completion path does check the two 32 bit blockack (ba) fields
> in the TX descriptor for completion. It doesn't hand-parse a BA frame.
>
>
> -a
>
>
> On 3 February 2014 07:48, Olivier Marce
> <Olivier.Marce@alcatel-lucent.com> wrote:
>> Hi everybody,
>> thanks to all of you who share your knowledge and expertise on ath9k.
>>
>> I wonder if Ack and Block Ack are processed directly by the HW on
>> receipt and not the firmware.
>>
>> There are several messages that confirm that Ack and Block Ack are
>> *sent* by HW (http://www.spinics.net/lists/linux-wireless/msg106950.html)
>> But are they processed (on receipt) also by HW ? I analysed firmware
>> code and I did not find any Ack/BA processing.
>>
>> Is my understanding correct ?
>>
>> Best regards
>>
>>
>> --
>> Olivier Marc?
>> Alcatel-Lucent Bell Labs France
>> _______________________________________________
>> ath9k-devel mailing list
>> ath9k-devel at lists.ath9k.org
>> https://lists.ath9k.org/mailman/listinfo/ath9k-devel
>
>

-- 
Olivier Marc?
Alcatel-Lucent Bell Labs France