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Message-ID: <5175b7f95442eff1f8e899feee3d3aeb330fb61e.camel@sipsolutions.net>
Subject: Re: [RFC 0/4] mac80211: add TPC support in control path
From:   Johannes Berg <johannes@sipsolutions.net>
To:     Jonas Jelonek <jelonek.jonas@gmail.com>,
        linux-wireless@vger.kernel.org
Cc:     nbd@nbd.name, Thomas Huehn <thomas.huehn@hs-nordhausen.de>
Date:   Mon, 29 Aug 2022 16:45:20 +0200
In-Reply-To: <20220829144147.484787-1-jelonek.jonas@gmail.com>
References: <20220829144147.484787-1-jelonek.jonas@gmail.com>
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On Mon, 2022-08-29 at 16:41 +0200, Jonas Jelonek wrote:
> Transmit power control (TPC) per packet hence per station can be used to
> manage interference and increase overall spatial reuse and therefore
> increases sum throughput in WiFi networks with multiple APs and STAs.
> Although several of today's wifi chips, e.g., from QCA and from Mediatek
> support fine-grained TPC per packet, the Linux mac80211 layer does not
> provide support this annotation nor control yet.
>=20
> This series proposes several changes to introduce TPC support in
> mac80211, in particular to annotate tx-power per packet/per mrr stage in
> the Tx control path.
> The patches include new nembers in the Tx control path structs, a
> modified tx-power level support annotation, hardware flags and an
> utility function for the convenient use of struct ieee80211_rate_status
> (introduced by 44fa75f207d8a106bc75e6230db61e961fdbf8a8) for tx-power
> status report in drivers.
>=20
> Compile-Tested: current wireless-next tree with all flags on
> Tested-on PCEngines APU with ath9k WiFi device on OpenWrt Linux
>         Kernel 5.10.137
>=20

That seems just a little old? Not sure I'd trust that given the major
changes in the tree recently?

johannes