Linux wireless drivers development
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From: Ali MJ Al-Nasrawy <alimjalnasrawy@gmail.com>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: linux-wireless@vger.kernel.org, Arend van Spriel <aspriel@gmail.com>
Subject: mac80211 keeps trying to start ampdu session??
Date: Tue, 23 Oct 2018 10:44:04 +0300	[thread overview]
Message-ID: <20181023104404.795619aa@manjaro> (raw)

Hi,

I am trying to debug brcmsmac wireless driver for spamming the log with
the message:
[...] START: tid 2 is not agg'able
for it does not support AMPDU aggreggation for TID 2.

And after quick tracing, I found that mac80211 keeps trying to start
AMPDU session for the _same TID and STA_ despite that the driver returns
non-zero code via its ampdu_action callback and that non-zero return
codes are recognized as the "HW unavailable" for such session
(agg-tx.c:ieee80211_tx_ba_session_handle_start)

So, Is that an expected behaviour from mac80211 or not??

Regards,
Ali MJ

             reply	other threads:[~2018-10-23  7:44 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-23  7:44 Ali MJ Al-Nasrawy [this message]
2018-10-23  8:18 ` mac80211 keeps trying to start ampdu session?? Johannes Berg
2018-10-23 12:22   ` Ali MJ Al-Nasrawy
2018-10-23 20:29     ` Johannes Berg

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