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From: Cong Wang <xiyou.wangcong@gmail.com>
To: izabela.bakollari@gmail.com
Cc: Neil Horman <nhorman@tuxdriver.com>,
	Linux Kernel Network Developers <netdev@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Jakub Kicinski <kuba@kernel.org>,
	linux-kernel-mentees@lists.linuxfoundation.org,
	David Miller <davem@davemloft.net>
Subject: Re: [Linux-kernel-mentees] [PATCHv2 net-next] dropwatch: Support monitoring of dropped frames
Date: Tue, 4 Aug 2020 14:28:28 -0700	[thread overview]
Message-ID: <CAM_iQpV-AfX_=o0=ZhU2QzV_pmyWs8RKV0yyMuxFgwFAPwpnXw@mail.gmail.com> (raw)
In-Reply-To: <20200804160908.46193-1-izabela.bakollari@gmail.com>

On Tue, Aug 4, 2020 at 9:14 AM <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.

drop monitor is already able to send dropped packets to user-space,
and wireshark already catches up with this feature:

https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commitdiff;h=a94a860c0644ec3b8a129fd243674a2e376ce1c8

So what you propose here seems pretty much a duplicate?

Thanks.
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  reply	other threads:[~2020-08-04 21:28 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-07 17:15 [Linux-kernel-mentees] [PATCH " izabela.bakollari
2020-07-07 17:33 ` Eric Dumazet
2020-07-07 17:36   ` Eric Dumazet
2020-07-07 17:52 ` Eric Dumazet
2020-07-08 13:54   ` Izabela Bakollari
2020-07-08 14:06   ` Izabela Bakollari
2020-07-07 21:00 ` kernel test robot
2020-07-08  0:27 ` kernel test robot
2020-08-04 16:09 ` [Linux-kernel-mentees] [PATCHv2 " izabela.bakollari
2020-08-04 21:28   ` Cong Wang [this message]
2020-08-04 21:58     ` Neil Horman
2020-08-04 23:14   ` David Miller
2020-08-05 10:44     ` Neil Horman
2020-08-10 13:39   ` Izabela Bakollari
2020-08-10 13:56     ` Greg KH
2020-08-31 13:18   ` Michal Schmidt
2020-09-02 16:05     ` Izabela Bakollari
2020-09-02 17:16 ` [Linux-kernel-mentees] [PATCHv3 " izabela.bakollari
2020-09-02 20:35   ` Eric Dumazet
2020-10-23  4:29 ` [Linux-kernel-mentees] [PATCHv4 " izabela.bakollari
2020-10-23 18:20   ` Jakub Kicinski

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