netdev - Re: [PATCH net] net: dsa: flood multicast to CPU when slave has IFF

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Date:   Mon, 25 Apr 2022 10:50:12 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Vladimir Oltean <vladimir.oltean@....com>
Cc:     netdev@...r.kernel.org, kuba@...nel.org, davem@...emloft.net,
        pabeni@...hat.com, f.fainelli@...il.com, andrew@...n.ch,
        vivien.didelot@...il.com, olteanv@...il.com
Subject: Re: [PATCH net] net: dsa: flood multicast to CPU when slave has
 IFF_PROMISC

Hello:

This patch was applied to netdev/net.git (master)
by David S. Miller <davem@...emloft.net>:

On Fri, 22 Apr 2022 01:42:22 +0300 you wrote:
> Certain DSA switches can eliminate flooding to the CPU when none of the
> ports have the IFF_ALLMULTI or IFF_PROMISC flags set. This is done by
> synthesizing a call to dsa_port_bridge_flags() for the CPU port, a call
> which normally comes from the bridge driver via switchdev.
> 
> The bridge port flags and IFF_PROMISC|IFF_ALLMULTI have slightly
> different semantics, and due to inattention/lack of proper testing, the
> IFF_PROMISC flag allows unknown unicast to be flooded to the CPU, but
> not unknown multicast.
> 
> [...]

Here is the summary with links:
  - [net] net: dsa: flood multicast to CPU when slave has IFF_PROMISC
    https://git.kernel.org/netdev/net/c/7c762e70c50b

You are awesome, thank you!
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