netdev - Re: [MAC802154] DRAFT: IEEE 802.15.4 MAC layer basic implementation

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Message-ID: <CAJmB2rAPFWtP1qMqNfgN-Xb154E1=QwXWc4XgKxrGdmKxUqANQ@mail.gmail.com>
Date:	Wed, 30 Nov 2011 19:54:53 +0300
From:	Alexander Smirnov <alex.bluesman.smirnov@...il.com>
To:	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>
Cc:	Jon Smirl <jonsmirl@...il.com>,
	linux-zigbee-devel@...ts.sourceforge.net, netdev@...r.kernel.org,
	davem@...emloft.net
Subject: Re: [MAC802154] DRAFT: IEEE 802.15.4 MAC layer basic implementation

Hello Dmitry,

thank you for the reply,

2011/11/30 Dmitry Eremin-Solenikov <dbaryshkov@...il.com>:
> Hello colleagues,
>
> On Wed, Nov 30, 2011 at 6:18 PM, Alexander Smirnov
> <alex.bluesman.smirnov@...il.com> wrote:
>
> [skipped]
>
>> This stack has working implementation in 'linux-zigbee.sourceforge.net'
>> project, but unfortunately all the development was freezed according to
>> unknown issue and it hasn't been merged to mailnline.
>>
>> Currently I'm the one engineer who continue working on them. So the
>> following patch series is based on the project mentioned above, and I just
>> cut code into roudimentary pieces with minor fixes.
>
> Alexander, thank you for continuing the work on the project! I'm glad to see
> those patches being submitted to the mainline kernel.
>
>> The code in the following patches was tested by 6LowPAN module. I took at230
>> transciever driver from 'linux-zigbee' and brought up IPv6 network, it worked.
>>
>> Could please anyone review patches and let me know what do you think?
>
> Several global notes:
>
> 1) Could you please include any (virtual or real) device driver
> implementing the stack.
> There was a "virtual radio" driver written for SoftMAC devices. The
> driver had some small
> design problems, but I think the stripped down version can be included
> in the patchset.

do you think that's a good idea to mix several layers in one patch series?
Won't it be better to push some basic MAC support and only after the drivers?
I see that way a little bit easier for code review.

But if you don't think so, it's not a problem.
>
> 2) Could you please rearrange the patches a little bit:
> I'd really like to see the "monitor" devices interface pushed in the
> first round of the patches.
> It depends only on "simple mlme" and "RX/TX datapath" patches IIRC. It
> would be really
> good to merge those things first as it would then allow one to
> implement their drivers,
> check the radio, capture radio frames, etc.
>

Hmm, sounds good. I agree with this roadmap. :)

> I'll try reviewing patches really soon (as the time permits). However
> could you please specify,
> your changes over the last state I pushed to sf.net git repos (devel
> or devel-30 branches)
> to ease review?
>

The changes are really small and they don't affect the code
structure/logic: using of common style in debug output, rewrite
'fetch_skb' functions, remove several unused lines etc...

> --
> With best wishes
> Dmitry

With best regards,
Alexander
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