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From:   khalasa@piap.pl (Krzysztof =?utf-8?Q?Ha=C5=82asa?=)
To:     Nicolas Cavallari <nicolas.cavallari@green-communications.fr>
Cc:     Johannes Berg <johannes@sipsolutions.net>,
        linux-wireless@vger.kernel.org, Kalle Valo <kvalo@codeaurora.org>
Subject: Re: [RFC] Allow userspace to reset IBSS stations to fix aggregation issue
References: <m34l02mh71.fsf@t19.piap.pl>
        <20191209102808.12014-1-nicolas.cavallari@green-communications.fr>
Date:   Wed, 11 Dec 2019 07:58:20 +0100
In-Reply-To: <20191209102808.12014-1-nicolas.cavallari@green-communications.fr>
        (Nicolas Cavallari's message of "Mon, 9 Dec 2019 11:28:05 +0100")
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Hi Nicolas,

Nicolas Cavallari <nicolas.cavallari@green-communications.fr> writes:

> I encountered the same issue in an IBSS-RSN network, where quick reboot
> of a station would cause issues with aggregation because the kernel is
> not aware of the reboot.
>
> I figured out that since wpa_supplicant already detect reboots, the
> simplest way to fix it would be for wpa_supplicant to reset the entire
> state of the station in the kernel, instead of just resetting keys and
> port.

Just to make sure everybody is aware that it would only be a partial fix
- unencrypted ad hoc mode (the simplest thing available) doesn't need
any userspace and thus must be fixed in the kernel. Alternatively this
functionality may be moved to wpa_supplicant and only then userspace fix
could really fix it completely.
--=20
Krzysztof Halasa

=C5=81UKASIEWICZ Research Network
Industrial Research Institute for Automation and Measurements PIAP
Al. Jerozolimskie 202, 02-486 Warsaw, Poland