From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 47B1EC43387 for ; Tue, 18 Dec 2018 15:34:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0B40E2133F for ; Tue, 18 Dec 2018 15:34:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=g.ncu.edu.tw header.i=@g.ncu.edu.tw header.b="VdYwOgta" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726921AbeLRPeQ (ORCPT ); Tue, 18 Dec 2018 10:34:16 -0500 Received: from mail-ot1-f68.google.com ([209.85.210.68]:46717 "EHLO mail-ot1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726555AbeLRPeQ (ORCPT ); Tue, 18 Dec 2018 10:34:16 -0500 Received: by mail-ot1-f68.google.com with SMTP id w25so15987070otm.13 for ; Tue, 18 Dec 2018 07:34:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=g.ncu.edu.tw; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=zRcpSDgKBunETK4jngTuaWDbCUphXpYDKqI0rFAN6ng=; b=VdYwOgtalgTEQ412UEhrLyvhKiVp6UVMMgPk8ZbrsIhWs81CVJNDe/jBg10x4iiDl4 s5W8atvzTPFAj0GI+0DVkFs/HcaxSI4tUfkXiXSvsUQjVGfsxl/U/irbEjLLApwWBU4s ApjWDPNgSKTpaDroEbAy9MvFXwMvgcT3qK6sw= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=zRcpSDgKBunETK4jngTuaWDbCUphXpYDKqI0rFAN6ng=; b=ikwm/+bJbXyNQ2ClTroi4UgU/Nx7HpBAVXtbRHs0n/9vzwp5r/ARo/YbDjeu1KrXdf 7wTvKLKGvyAI6/RgEyuvKmA/7W0baf1RBx/t8QYWFAH9JvYXrxu2R26bF8jtIqAHkwhb lY0/wHW3vsaYKc93Y2Mj+kFfbubTLExi9HfkmYvNim8W/RxfjPIW5Q7/vljQCWsclHib +P15RgDlgem4eeETgTPCxWyNV/K74ESoMR4BOtfU+X8GAlbGN8p3iIEHd0MIvQam0dEE UG4tX6Dawyu2m8+ckGGXp2awEZlMXyH+l3vNPYxD6ueSNCUPrY+OEOOErZbzCgcYKlzK 4ihQ== X-Gm-Message-State: AA+aEWYOzqO4abdce5PSFjwCSfwSICFyeyJPTetXhE9FOQE9ZVtmdJjS pty/p+FPoPi40mlV25jWojmC/xKgX9sRFg== X-Google-Smtp-Source: AFSGD/X1ZaBbAtRSRcue6upxYcAZ03oF50eqGi/FBN3KocEvtl+S6KydK6CdwRkG4HlqfrN2CQchMQ== X-Received: by 2002:a9d:5550:: with SMTP id h16mr11847836oti.140.1545147254801; Tue, 18 Dec 2018 07:34:14 -0800 (PST) Received: from mail-oi1-f174.google.com (mail-oi1-f174.google.com. [209.85.167.174]) by smtp.gmail.com with ESMTPSA id 75sm4626777otc.67.2018.12.18.07.34.13 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 18 Dec 2018 07:34:13 -0800 (PST) Received: by mail-oi1-f174.google.com with SMTP id j21so2249788oii.8; Tue, 18 Dec 2018 07:34:13 -0800 (PST) X-Received: by 2002:aca:e401:: with SMTP id b1mr7717991oih.231.1545147253134; Tue, 18 Dec 2018 07:34:13 -0800 (PST) MIME-Version: 1.0 References: <20181216101858.9585-6-starnight@g.ncu.edu.tw> <20181217140233.GG2096@nanopsycho> <20181218142756.GA2031@nanopsycho> In-Reply-To: <20181218142756.GA2031@nanopsycho> From: Jian-Hong Pan Date: Tue, 18 Dec 2018 23:34:19 +0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v5 5/6] net: maclorawan: Implement maclorawan class module To: Jiri Pirko Cc: =?UTF-8?Q?Andreas_F=C3=A4rber?= , "David S . Miller" , Alan Cox , linux-lpwan@lists.infradead.org, netdev@vger.kernel.org, ", "linux-kernel@vger.kernel.org>," , Marcel Holtmann , Dollar Chen , Ken Yu , linux-wpan - ML Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > Tue, Dec 18, 2018 at 03:27:09PM CET, starnight@g.ncu.edu.tw wrote: > >> Sun, Dec 16, 2018 at 11:18:59AM CET, starnight@g.ncu.edu.tw wrote: > >> >LoRaWAN defined by LoRa Alliance(TM) is the MAC layer over LoRa devices. > >> > > >> >This patch implements part of Class A end-devices SoftMAC defined in > >> >LoRaWAN(TM) Specification Ver. 1.0.2: > >> >1. End-device receive slot timing > >> >2. Only single channel and single data rate for now > >> >3. Unconfirmed data up/down message types > >> > > >> >On the other side, it defines the basic interface and operation > >> >functions for compatible LoRa device drivers. > >> > > >> >Signed-off-by: Jian-Hong Pan > >> >--- > >> >V2: > >> >- Split the LoRaWAN class module patch in V1 into LoRaWAN socket and > >> > LoRaWAN Soft MAC modules > >> >- Modify for Big/Little-Endian > >> >- Use SPDX license identifiers > >> > > >> >V3: > >> >- Remove the decoration word - inline of the functions > >> >- Order local variables from longest to shortest line in the functions > >> >- Change the calling mac_cb function to lrw_get_mac_cb macro > >> > > >> >V4: > >> >- Fix the delay period between RX window#1 and window#2 > >> >- Fix by coding style report from scripts/checkpatch.pl > >> > > >> >V5: > >> >- Initial rx_skb_list when it is allocated with LoRa hardware > >> >- Check the sk_buff's data length before access it > >> >- Deal FPort field and decrypt payload in lrw_parse_frame function > >> >- Drop the recieved frame if parse failed > >> >- Fix the bug which passes wrong skb properties from maclorawan to lorawan module > >> > > >> > net/maclorawan/Kconfig | 14 + > >> > net/maclorawan/Makefile | 2 + > >> > net/maclorawan/mac.c | 555 ++++++++++++++++++++++++++++++++++++ > >> > net/maclorawan/main.c | 606 ++++++++++++++++++++++++++++++++++++++++ > >> > 4 files changed, 1177 insertions(+) > >> > create mode 100644 net/maclorawan/Kconfig > >> > create mode 100644 net/maclorawan/Makefile > >> > create mode 100644 net/maclorawan/mac.c > >> > create mode 100644 net/maclorawan/main.c > >> > >> > >> I don't get it. In patch "Add LoRaWAN API declaration for LoRa devices" > >> you add headers for "API" and here you implement functions. That is just > >> weird. Does it mean you can have other implementations? > > > >LoRaWAN defined by LoRa Alliance(TM) is the MAC layer over LoRa PHY. > >This part is soft-MAC as Andreas mentioned > >http://lists.infradead.org/pipermail/linux-lpwan/2018-December/000010.html > > Okay, that does not answer my concern about header file in one patch and > the actual implementation of functions in another one. Just for clarification: - Patch "net: lorawan: Add LoRaWAN socket module" is for lorawan module - Patch "net: lorawan: Add LoRaWAN API declaration for LoRa devices" containes the header file "include/linux/lora/lorawan.h" which will be included by LoRa device drivers or other kernel modules. - Patches "net: maclorawan: Add maclorawan module declaration", "net: maclorawan: Implement the crypto of maclorawan module" and "net: maclorawan: Implement maclorawan class module" are for maclorawan module. Question 1: Should I marge "net: maclorawan: Add maclorawan module declaration", "net: maclorawan: Implement the crypto of maclorawan module" and "net: maclorawan: Implement maclorawan class module" into a single patch named "net: maclorawan: Add maclorawan as the soft-MAC module"? Then: For example, after a LoRa device driver includes the header "linux/lora/lorawan.h", the device driver will call "lrw_alloc_hw()" and pass with a "struct lrw_operations" type of variable's pointer. It gets a type of "struct lrw_hw *" pointer. Then, it will call "lrw_register_hw()" to register the device. The device driver implements the callback functions for the "struct lrw_operations" type of variable by it self before calls "lrw_alloc_hw()". Question 2: Should the patch "net: lorawan: Add LoRaWAN API declaration for LoRa devices" also be merged into "net: maclorawan: Add maclorawan as the soft-MAC module" or "net: maclorawan: Implement maclorawan class module"? Or, just leave it as a single patch? 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[209.85.167.179]) by smtp.gmail.com with ESMTPSA id q131sm7269739oih.1.2018.12.18.07.34.13 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 18 Dec 2018 07:34:13 -0800 (PST) Received: by mail-oi1-f179.google.com with SMTP id v6so2284798oif.2; Tue, 18 Dec 2018 07:34:13 -0800 (PST) X-Received: by 2002:aca:e401:: with SMTP id b1mr7717991oih.231.1545147253134; Tue, 18 Dec 2018 07:34:13 -0800 (PST) MIME-Version: 1.0 References: <20181216101858.9585-6-starnight@g.ncu.edu.tw> <20181217140233.GG2096@nanopsycho> <20181218142756.GA2031@nanopsycho> In-Reply-To: <20181218142756.GA2031@nanopsycho> From: Jian-Hong Pan Date: Tue, 18 Dec 2018 23:34:19 +0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v5 5/6] net: maclorawan: Implement maclorawan class module To: Jiri Pirko X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181218_073426_547521_5189421F X-CRM114-Status: GOOD ( 21.51 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alan Cox , "linux-kernel@vger.kernel.org>, " , netdev@vger.kernel.org, Marcel Holtmann , linux-lpwan@lists.infradead.org, "David S . Miller" , Dollar Chen , Ken Yu , linux-wpan - ML , =?UTF-8?Q?Andreas_F=C3=A4rber?= , " Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org > Tue, Dec 18, 2018 at 03:27:09PM CET, starnight@g.ncu.edu.tw wrote: > >> Sun, Dec 16, 2018 at 11:18:59AM CET, starnight@g.ncu.edu.tw wrote: > >> >LoRaWAN defined by LoRa Alliance(TM) is the MAC layer over LoRa devices. > >> > > >> >This patch implements part of Class A end-devices SoftMAC defined in > >> >LoRaWAN(TM) Specification Ver. 1.0.2: > >> >1. End-device receive slot timing > >> >2. Only single channel and single data rate for now > >> >3. Unconfirmed data up/down message types > >> > > >> >On the other side, it defines the basic interface and operation > >> >functions for compatible LoRa device drivers. > >> > > >> >Signed-off-by: Jian-Hong Pan > >> >--- > >> >V2: > >> >- Split the LoRaWAN class module patch in V1 into LoRaWAN socket and > >> > LoRaWAN Soft MAC modules > >> >- Modify for Big/Little-Endian > >> >- Use SPDX license identifiers > >> > > >> >V3: > >> >- Remove the decoration word - inline of the functions > >> >- Order local variables from longest to shortest line in the functions > >> >- Change the calling mac_cb function to lrw_get_mac_cb macro > >> > > >> >V4: > >> >- Fix the delay period between RX window#1 and window#2 > >> >- Fix by coding style report from scripts/checkpatch.pl > >> > > >> >V5: > >> >- Initial rx_skb_list when it is allocated with LoRa hardware > >> >- Check the sk_buff's data length before access it > >> >- Deal FPort field and decrypt payload in lrw_parse_frame function > >> >- Drop the recieved frame if parse failed > >> >- Fix the bug which passes wrong skb properties from maclorawan to lorawan module > >> > > >> > net/maclorawan/Kconfig | 14 + > >> > net/maclorawan/Makefile | 2 + > >> > net/maclorawan/mac.c | 555 ++++++++++++++++++++++++++++++++++++ > >> > net/maclorawan/main.c | 606 ++++++++++++++++++++++++++++++++++++++++ > >> > 4 files changed, 1177 insertions(+) > >> > create mode 100644 net/maclorawan/Kconfig > >> > create mode 100644 net/maclorawan/Makefile > >> > create mode 100644 net/maclorawan/mac.c > >> > create mode 100644 net/maclorawan/main.c > >> > >> > >> I don't get it. In patch "Add LoRaWAN API declaration for LoRa devices" > >> you add headers for "API" and here you implement functions. That is just > >> weird. Does it mean you can have other implementations? > > > >LoRaWAN defined by LoRa Alliance(TM) is the MAC layer over LoRa PHY. > >This part is soft-MAC as Andreas mentioned > >http://lists.infradead.org/pipermail/linux-lpwan/2018-December/000010.html > > Okay, that does not answer my concern about header file in one patch and > the actual implementation of functions in another one. Just for clarification: - Patch "net: lorawan: Add LoRaWAN socket module" is for lorawan module - Patch "net: lorawan: Add LoRaWAN API declaration for LoRa devices" containes the header file "include/linux/lora/lorawan.h" which will be included by LoRa device drivers or other kernel modules. - Patches "net: maclorawan: Add maclorawan module declaration", "net: maclorawan: Implement the crypto of maclorawan module" and "net: maclorawan: Implement maclorawan class module" are for maclorawan module. Question 1: Should I marge "net: maclorawan: Add maclorawan module declaration", "net: maclorawan: Implement the crypto of maclorawan module" and "net: maclorawan: Implement maclorawan class module" into a single patch named "net: maclorawan: Add maclorawan as the soft-MAC module"? Then: For example, after a LoRa device driver includes the header "linux/lora/lorawan.h", the device driver will call "lrw_alloc_hw()" and pass with a "struct lrw_operations" type of variable's pointer. It gets a type of "struct lrw_hw *" pointer. Then, it will call "lrw_register_hw()" to register the device. The device driver implements the callback functions for the "struct lrw_operations" type of variable by it self before calls "lrw_alloc_hw()". Question 2: Should the patch "net: lorawan: Add LoRaWAN API declaration for LoRa devices" also be merged into "net: maclorawan: Add maclorawan as the soft-MAC module" or "net: maclorawan: Implement maclorawan class module"? Or, just leave it as a single patch? _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel