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Message-ID: <Znt4Aqa2Kbsa3odW@Laptop-X1>
Date: Wed, 26 Jun 2024 10:08:02 +0800
From: Hangbin Liu <liuhangbin@...il.com>
To: Tobias Waldekranz <tobias@...dekranz.com>
Cc: stephen@...workplumber.org, dsahern@...nel.org, netdev@...r.kernel.org
Subject: Re: [PATCH v2 iproute2 2/3] bridge: vlan: Add support for setting a
 VLANs MSTI

On Mon, Jun 24, 2024 at 03:00:34PM +0200, Tobias Waldekranz wrote:
> Allow the user to associate one or more VLANs with a multiple spanning
> tree instance (MSTI), when MST is enabled on the bridge.
> 
> Signed-off-by: Tobias Waldekranz <tobias@...dekranz.com>
> ---
>  bridge/vlan.c     | 13 +++++++++++++
>  man/man8/bridge.8 |  9 ++++++++-
>  2 files changed, 21 insertions(+), 1 deletion(-)
> 
> diff --git a/bridge/vlan.c b/bridge/vlan.c
> index 0a7e6c45..34d7f767 100644
> --- a/bridge/vlan.c
> +++ b/bridge/vlan.c
> @@ -56,6 +56,7 @@ static void usage(void)
>  		"                      [ mcast_querier_interval QUERIER_INTERVAL ]\n"
>  		"                      [ mcast_query_interval QUERY_INTERVAL ]\n"
>  		"                      [ mcast_query_response_interval QUERY_RESPONSE_INTERVAL ]\n"
> +		"                      [ msti MSTI ]\n"
>  		"       bridge vlan global { show } [ dev DEV ] [ vid VLAN_ID ]\n");
>  	exit(-1);
>  }
> @@ -406,6 +407,7 @@ static int vlan_global_option_set(int argc, char **argv)
>  	short vid = -1;
>  	__u64 val64;
>  	__u32 val32;
> +	__u16 val16;
>  	__u8 val8;
>  
>  	afspec = addattr_nest(&req.n, sizeof(req),
> @@ -536,6 +538,12 @@ static int vlan_global_option_set(int argc, char **argv)
>  			addattr64(&req.n, 1024,
>  				  BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_INTVL,
>  				  val64);
> +		} else if (strcmp(*argv, "msti") == 0) {
> +			NEXT_ARG();
> +			if (get_u16(&val16, *argv, 0))
> +				invarg("invalid msti", *argv);
> +			addattr16(&req.n, 1024,
> +				 BRIDGE_VLANDB_GOPTS_MSTI, val16);
>  		} else {
>  			if (strcmp(*argv, "help") == 0)
>  				NEXT_ARG();
> @@ -945,6 +953,11 @@ static void print_vlan_global_opts(struct rtattr *a, int ifindex)
>  			     "mcast_query_response_interval %llu ",
>  			     rta_getattr_u64(vattr));
>  	}
> +	if (vtb[BRIDGE_VLANDB_GOPTS_MSTI]) {
> +		vattr = vtb[BRIDGE_VLANDB_GOPTS_MSTI];
> +		print_uint(PRINT_ANY, "msti", "msti %u ",
> +			   rta_getattr_u16(vattr));
> +	}
>  	print_nl();
>  	if (vtb[BRIDGE_VLANDB_GOPTS_MCAST_ROUTER_PORTS]) {
>  		vattr = RTA_DATA(vtb[BRIDGE_VLANDB_GOPTS_MCAST_ROUTER_PORTS]);
> diff --git a/man/man8/bridge.8 b/man/man8/bridge.8
> index bb02bd27..b4699801 100644
> --- a/man/man8/bridge.8
> +++ b/man/man8/bridge.8
> @@ -266,7 +266,9 @@ bridge \- show / manipulate bridge addresses and devices
>  .B mcast_query_interval
>  .IR QUERY_INTERVAL " ] [ "
>  .B mcast_query_response_interval
> -.IR QUERY_RESPONSE_INTERVAL " ]"
> +.IR QUERY_RESPONSE_INTERVAL " ] [ "
> +.B msti
> +.IR MSTI " ]"
>  
>  .ti -8
>  .BR "bridge vlan global" " [ " show " ] [ "
> @@ -1493,6 +1495,11 @@ startup phase.
>  set the Max Response Time/Maximum Response Delay for IGMP/MLD
>  queries sent by the bridge.
>  
> +.TP
> +.BI msti " MSTI "
> +associate the VLAN with the specified multiple spanning tree instance
> +(MSTI).
> +
>  .SS bridge vlan global show - list global vlan options.
>  
>  This command displays the global VLAN options for each VLAN entry.
> -- 
> 2.34.1
> 

Reviewed-by: Hangbin Liu <liuhangbin@...il.com>

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