RE: [EXT] Re: [PATCH v9 0/2] wifi: mwifiex: add code to support host mlme

David Lin
2024-03-21T02:12:07Z

> From: Brian Norris <briannorris@chromium.org>
> Sent: Thursday, March 21, 2024 5:13 AM
> To: David Lin <yu-hao.lin@nxp.com>
> Cc: linux-wireless@vger.kernel.org; linux-kernel@vger.kernel.org;
> kvalo@kernel.org; francesco@dolcini.it; Pete Hsieh
> <tsung-hsien.hsieh@nxp.com>; rafael.beims <rafael.beims@toradex.com>;
> Francesco Dolcini <francesco.dolcini@toradex.com>
> Subject: Re: [EXT] Re: [PATCH v9 0/2] wifi: mwifiex: add code to support host
> mlme
>
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> Hi David,
>
> On Mon, Mar 18, 2024 at 02:20:56AM +0000, David Lin wrote:
> > > From: Brian Norris <briannorris@chromium.org>
>
> > > I'm not sure if this has been asked/answered before, but are the
> > > MLME/WPA3 limitations exclusively tied to the firmware support ("V2
> > > Key API")? Or are there hardware limitations on top (e.g., some
> > > firmware might get
> > > "V2 Key API" but still be unsupported on a given chip family)? Could
> > > other chips chips theoretically get this feature-set in the future?
> >
> > If firmware reported support of V2 Key API, then host mlme can be
> > supported without issues. There is a flag 'host_mlme' in struct
> > 'mwifiex_sdio_device' to indicate if host mlme should be supported. If
> > this flag is set, driver will still check if firmware can support V2
> > Key API. If firmware can't support it, host mlme will be disabled.
>
> Thanks! If I can distill the answer: it's just a software/firmware limitation, and
> not a hardware limitation. The hardware limitation flag in this series is added
> just out of caution.
>
> Brian

Give user the choice to use host mlme or not.