netdev - Re: [PATCH iproute2-next 2/7] bridge: mdb: Add underlay destination IP support

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Message-ID: <95bd909b-439d-1165-1a8e-d1df1fab9f76@blackwall.org>
Date:   Thu, 23 Mar 2023 17:17:26 +0200
From:   Nikolay Aleksandrov <razor@...ckwall.org>
To:     Ido Schimmel <idosch@...dia.com>, netdev@...r.kernel.org
Cc:     dsahern@...il.com, stephen@...workplumber.org, petrm@...dia.com,
        mlxsw@...dia.com
Subject: Re: [PATCH iproute2-next 2/7] bridge: mdb: Add underlay destination
 IP support

On 21/03/2023 15:01, Ido Schimmel wrote:
> Allow user space to program and view VXLAN MDB entries. Specifically,
> add support for the 'MDBE_ATTR_DST' and 'MDBA_MDB_EATTR_DST' attributes
> in request and response messages, respectively.
> 
> The attributes encode the IP address of the destination VXLAN tunnel
> endpoint where multicast receivers for the specified multicast flow
> reside.
> 
> Multiple destinations can be added for each flow.
> 
> Example:
> 
>  # bridge mdb add dev vxlan0 port vxlan0 grp 239.1.1.1 permanent dst 198.51.100.1
>  # bridge mdb add dev vxlan0 port vxlan0 grp 239.1.1.1 permanent dst 192.0.2.1
> 
>  $ bridge -d -s mdb show
>  dev vxlan0 port vxlan0 grp 239.1.1.1 permanent filter_mode exclude proto static dst 192.0.2.1    0.00
>  dev vxlan0 port vxlan0 grp 239.1.1.1 permanent filter_mode exclude proto static dst 198.51.100.1    0.00
> 
>  $ bridge -d -s -j -p mdb show
>  [ {
>          "mdb": [ {
>                  "index": 15,
>                  "dev": "vxlan0",
>                  "port": "vxlan0",
>                  "grp": "239.1.1.1",
>                  "state": "permanent",
>                  "filter_mode": "exclude",
>                  "protocol": "static",
>                  "flags": [ ],
>                  "dst": "192.0.2.1",
>                  "timer": "   0.00"
>              },{
>                  "index": 15,
>                  "dev": "vxlan0",
>                  "port": "vxlan0",
>                  "grp": "239.1.1.1",
>                  "state": "permanent",
>                  "filter_mode": "exclude",
>                  "protocol": "static",
>                  "flags": [ ],
>                  "dst": "198.51.100.1",
>                  "timer": "   0.00"
>              } ],
>          "router": {}
>      } ]
> 
> Signed-off-by: Ido Schimmel <idosch@...dia.com>
> ---
>  bridge/mdb.c      | 51 +++++++++++++++++++++++++++++++++++++++++++++--
>  man/man8/bridge.8 | 15 +++++++++++++-
>  2 files changed, 63 insertions(+), 3 deletions(-)
> 

Reviewed-by: Nikolay Aleksandrov <razor@...ckwall.org>