netdev - Re: [PATCH v5 6/6] net: lorawan: List LORAWAN in menuconfig

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Date:   Mon, 17 Dec 2018 15:19:18 +0100
From:   Andreas Färber <afaerber@...e.de>
To:     Xue Liu <liuxuenetmail@...il.com>,
        Jian-Hong Pan <starnight@...cu.edu.tw>
Cc:     "David S . Miller" <davem@...emloft.net>,
        Alan Cox <gnomes@...rguk.ukuu.org.uk>,
        linux-lpwan@...ts.infradead.org, netdev@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Marcel Holtmann <marcel@...tmann.org>,
        Dollar Chen <dollar.chen@...ec.com>,
        Ken Yu <ken.yu@...wireless.com>,
        linux-wpan - ML <linux-wpan@...r.kernel.org>
Subject: Re: [PATCH v5 6/6] net: lorawan: List LORAWAN in menuconfig

Hello Xue Liu,

Am 17.12.18 um 09:50 schrieb Xue Liu:
> I have a question about the architecture of your module. AFAIK LoRaWAN
> is already the MAC Layer above the LoRa technology. Why do you want to
> make a new layer called "maclorawan" ?

I had asked Jian-Hong to separate between his soft-MAC implementation
and the common bits needed to drive hard-MAC implementations found on
several of the hardware modules made available to me.

The prefix "mac" was copied from mac80211 and mac802154:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/net

If you have better ideas for how to structure this, just let us know,
ideally as inline comment where you see it (or on the cover letter).

Only comment I have for this patch at the moment is that I would prefer
to have the Kconfig bits be in the patches adding the code, so that we
can actually build-test them before 6/6.

Been updating my lab to 4.20-rcX with some hiccups. Ben's
regmap_noinc_write support made it into 4.20, so I expect to have Ben's
pending branch for sx1301 merged into rebased lora-next before Christmas
and my sx1276 conversion to follow, leaving the PF_PACKET vs. PF_LORA
discussion from ELCE - haven't assessed yet how much this series would
be affected by the underlying changes, but if the abstraction was done
right then only maclorawan implementation should be affected.

Regards,
Andreas

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