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Date:   Fri, 23 Oct 2020 11:20:27 -0700
From:   Jakub Kicinski <kuba@kernel.org>
To:     izabela.bakollari@gmail.com
Cc:     nhorman@tuxdriver.com, davem@davemloft.net, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        linux-kernel-mentees@lists.linuxfoundation.org
Subject: Re: [PATCHv4 net-next] dropwatch: Support monitoring of dropped
 frames
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In-Reply-To: <20201023042943.563284-1-izabela.bakollari@gmail.com>
References: <20200707171515.110818-1-izabela.bakollari@gmail.com>
        <20201023042943.563284-1-izabela.bakollari@gmail.com>
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On Fri, 23 Oct 2020 06:29:43 +0200 izabela.bakollari@gmail.com wrote:
> From: Izabela Bakollari <izabela.bakollari@gmail.com>
> 
> Dropwatch is a utility that monitors dropped frames by having userspace
> record them over the dropwatch protocol over a file. This augument
> allows live monitoring of dropped frames using tools like tcpdump.
> 
> With this feature, dropwatch allows two additional commands (start and
> stop interface) which allows the assignment of a net_device to the
> dropwatch protocol. When assinged, dropwatch will clone dropped frames,
> and receive them on the assigned interface, allowing tools like tcpdump
> to monitor for them.
> 
> With this feature, create a dummy ethernet interface (ip link add dev
> dummy0 type dummy), assign it to the dropwatch kernel subsystem, by using
> these new commands, and then monitor dropped frames in real time by
> running tcpdump -i dummy0.
> 
> Signed-off-by: Izabela Bakollari <izabela.bakollari@gmail.com>

Doesn't seem to apply to net-next, also the tree is closed during the
merge window so please rebase and repost after the weekend.