[ATH9K_HTC] Debug files

[Sujith Manoharan]

Matteo wrote:
> Now I have another doubt, What does it mean "not filtered"?

A TX frame is returned with the filtered status if the destination
mask is set in the station table maintained in the HW. This happens
if a previous frame wasn't acknowledged. See the usage of
ATH9K_TXDESC_CLRDMASK, ATH9K_TXERR_FILT etc.

> However, If I wish to know the global number retransmission in a finite
> interval, could I extract long retries plus no filtered ?

Not really. The long_retries corresponds to the final rate index that was
used to transmit the frame. In a 4-series Multi Rate algorithm, the other
entries which were attempted and failed have to be taken into account too.

Accurate statistics for retransmission, xretries etc. should be available in
the rate control algorithm. For ath9k_htc, the RC is in the firmware.

Sujith