netdev - Re: [RFC] net: Add new LoRaWAN subsystem

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Date:   Fri, 11 May 2018 10:16:43 +0200
From:   Jiri Pirko <jiri@...nulli.us>
To:     Jian-Hong Pan <starnight@...cu.edu.tw>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Alexander Aring <alex.aring@...il.com>,
        Stefan Schmidt <stefan@....samsung.com>,
        linux-wpan - ML <linux-wpan@...r.kernel.org>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC] net: Add new LoRaWAN subsystem

Tue, May 08, 2018 at 05:33:01PM CEST, starnight@...cu.edu.tw wrote:
>A Low-Power Wide-Area Network (LPWAN) is a type of wireless
>telecommunication wide area network designed to allow long range
>communications at a low bit rate among things (connected objects), such
>as sensors operated on a battery.  It can be used widely in IoT area.
>LoRaWAN, which is one kind of implementation of LPWAN, is a medium
>access control (MAC) layer protocol for managing communication between
>LPWAN gateways and end-node devices, maintained by the LoRa Alliance.
>LoRaWAN™ Specification could be downloaded at:
>https://lora-alliance.org/lorawan-for-developers
>
>However, LoRaWAN is not implemented in Linux kernel right now, so I am
>trying to develop it.  Here is my repository:
>https://github.com/starnight/LoRa/tree/lorawan-ndo/LoRaWAN

Link to some out-of-tree module is not enough.
If you want anyone to look at this and comment, you need to base your
work on top of kernel git (net-next for example) and send a patch/patchset.


>
>Because it is a kind of network, the ideal usage in an user space
>program should be like "socket(PF_LORAWAN, SOCK_DGRAM, 0)" and with
>other socket APIs.  Therefore, the definitions like AF_LORAWAN,
>PF_LORAWAN ..., must be listed in the header files of glibc.
>For the driver in kernel space, the definitions also must be listed in
>the corresponding Linux socket header files.
>Especially, both are for the testing programs.
>
>Back to the mentioned "LoRaWAN is not implemented in Linux kernel now".
>Could or should we add the definitions into corresponding kernel header
>files now, if LoRaWAN will be accepted as a subsystem in Linux?
>
>Thanks,
>Jian-Hong Pan