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Subject: Re: Where to report mpdus tx vs failed?
From:   Johannes Berg <johannes@sipsolutions.net>
To:     Ben Greear <greearb@candelatech.com>,
        Steve deRosier <derosier@gmail.com>
Cc:     linux-wireless <linux-wireless@vger.kernel.org>
Date:   Mon, 22 Oct 2018 14:07:02 +0200
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On Mon, 2018-10-22 at 14:06 +0200, Johannes Berg wrote:
> On Fri, 2018-10-19 at 11:32 -0700, Ben Greear wrote:
> > 
> > I was hoping I could fit it into some existing stat.  It is sort of like
> > retries, so that will be my first attempt.
> > 
> > By investigating an RF sniff, I notice the 9880 ath10k (with my fw
> > and driver, at least), will retransmit about 30% of the frames when running
> > at least one of my test cases (small udp frame transmit to AP that can only do about mcs5 or mcs7
> > reliably at 3x3 nss).
> > 
> > I'd like to report this stat in my wifi test tool if nothing else, but
> > likely other people would make use of it as well.
> 
> 
> We have NL80211_STA_INFO_TX_RETRIES, shouldn't you be able to capture it
> there?

Or, per TID, NL80211_TID_STATS_TX_MSDU_RETRIES

johannes