From: Florian Fainelli <f.fainelli@gmail.com>
To: Vladimir Oltean <olteanv@gmail.com>,
"David S . Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
netdev@vger.kernel.org
Cc: Andrew Lunn <andrew@lunn.ch>, Vivien Didelot <vivien.didelot@gmail.com>
Subject: Re: [PATCH net-next] net: dsa: allow port mirroring towards foreign interfaces
Date: Fri, 5 Feb 2021 14:42:55 -0800 [thread overview]
Message-ID: <fead6d2a-3455-785a-a367-974c2e6efdf3@gmail.com> (raw)
In-Reply-To: <20210205223355.298049-1-olteanv@gmail.com>
On 2/5/21 2:33 PM, Vladimir Oltean wrote:
> From: Vladimir Oltean <vladimir.oltean@nxp.com>
>
> To a DSA switch, port mirroring towards a foreign interface is the same
> as mirroring towards the CPU port, since all non-DSA interfaces are
> reachable through that. Tell the hardware to send the packets to the CPU
> port and let the mirred action deal with them in software.
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
How does the mirred action deal with that case? How does it know that
packets delivered to the DSA master should be sent towards a foreign
address, do I need to set-up two mirred rules? One that set-ups the
filter on say sw0p0 to redirect egress to eth0 (DSA master) and another
one to ingress filter on eth0 and egress mirror to eth1 (USB ethernet
dongle)?
--
Florian
next prev parent reply other threads:[~2021-02-06 2:57 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-05 22:33 [PATCH net-next] net: dsa: allow port mirroring towards foreign interfaces Vladimir Oltean
2021-02-05 22:42 ` Florian Fainelli [this message]
2021-02-05 23:05 ` Vladimir Oltean
2021-02-06 23:58 ` Jakub Kicinski
2021-02-07 0:16 ` Vladimir Oltean
2021-02-07 0:43 ` Jakub Kicinski
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