Hi Nikolay,
Thanks for your comments.
The original intention is that I want to run a command to set single port into
QinQ mode,
the related commands are:
ip link set br0 type bridge vlan_protocol 802.1ad // this command will set all
ports under the bridge br0
ip link add link swp1 name swp1.100 type vlan protocol 802.1ad id 100 // this
command can set single port for vlan
I trace the related code of these two commands, find the same issue that
dsa_slave_vlan_rx_add_vid didn't pass the parameter "proto" to next port level,
so I create this patch.
I understand your concern, If don't use the flags for bridge, another way is
that add new item "u16 proto" in struct switchdev_obj_port_vlan, the slave port
can get proto from that, like that:
struct switchdev_obj_port_vlan {
struct switchdev_obj obj;
u16 flags;
u16 vid_begin;
u16 vid_end;
+ u16 proto;
};
The related modification has:
int dsa_port_vid_add(struct dsa_port *dp, u16 vid, u16 flags, u16 proto); //
add parameter proto
int dsa_port_vid_del(struct dsa_port *dp, u16 vid, u16 proto); // add
parameter proto
Any comments?
Thanks
-----Original Message-----
From: Nikolay Aleksandrov <niko...@cumulusnetworks.com>
Sent: 2020年7月20日 18:45
To: Hongbo Wang <hongbo.w...@nxp.com>; Xiaoliang Yang
<xiaoliang.yan...@nxp.com>; allan.niel...@microchip.com; Po Liu
<po....@nxp.com>; Claudiu Manoil <claudiu.man...@nxp.com>; Alexandru Marginean
<alexandru.margin...@nxp.com>; Vladimir Oltean <vladimir.olt...@nxp.com>; Leo
Li <leoyang...@nxp.com>; Mingkai Hu <mingkai...@nxp.com>; and...@lunn.ch;
f.faine...@gmail.com; vivien.dide...@gmail.com; da...@davemloft.net;
j...@resnulli.us; ido...@idosch.org; k...@kernel.org; vinicius.go...@intel.com;
ro...@cumulusnetworks.com; netdev@vger.kernel.org;
linux-ker...@vger.kernel.org; horatiu.vul...@microchip.com;
alexandre.bell...@bootlin.com; unglinuxdri...@microchip.com;
linux-de...@linux.nxdi.nxp.com
Subject: [EXT] Re: [PATCH 1/2] net: dsa: Add flag for 802.1AD when adding VLAN
for dsa switch and port
Caution: EXT Email
On 20/07/2020 13:41, hongbo.w...@nxp.com wrote:
> From: "hongbo.wang" <hongbo.w...@nxp.com>
>
> the following command can be supported:
> ip link add link swp1 name swp1.100 type vlan protocol 802.1ad id 100
>
> Signed-off-by: hongbo.wang <hongbo.w...@nxp.com>
> ---
> include/uapi/linux/if_bridge.h | 1 +
> net/dsa/slave.c | 9 +++++++--
> 2 files changed, 8 insertions(+), 2 deletions(-)
>
This is not bridge related at all, please leave its flags out of it.
Nacked-by: Nikolay Aleksandrov <niko...@cumulusnetworks.com>
> diff --git a/include/uapi/linux/if_bridge.h
> b/include/uapi/linux/if_bridge.h index caa6914a3e53..ecd960aa65c7
> 100644
> --- a/include/uapi/linux/if_bridge.h
> +++ b/include/uapi/linux/if_bridge.h
> @@ -132,6 +132,7 @@ enum {
> #define BRIDGE_VLAN_INFO_RANGE_END (1<<4) /* VLAN is end of vlan range */
> #define BRIDGE_VLAN_INFO_BRENTRY (1<<5) /* Global bridge VLAN entry */
> #define BRIDGE_VLAN_INFO_ONLY_OPTS (1<<6) /* Skip create/delete/flags */
> +#define BRIDGE_VLAN_INFO_8021AD (1<<7) /* VLAN is 802.1AD protocol */
>
> struct bridge_vlan_info {
> __u16 flags;
> diff --git a/net/dsa/slave.c b/net/dsa/slave.c index
> 4c7f086a047b..376d7ac5f1e5 100644
> --- a/net/dsa/slave.c
> +++ b/net/dsa/slave.c
> @@ -1232,6 +1232,7 @@ static int dsa_slave_get_ts_info(struct
> net_device *dev, static int dsa_slave_vlan_rx_add_vid(struct net_device
> *dev, __be16 proto,
> u16 vid) {
> + u16 flags = 0;
> struct dsa_port *dp = dsa_slave_to_port(dev);
> struct bridge_vlan_info info;
> int ret;
> @@ -1252,7 +1253,10 @@ static int dsa_slave_vlan_rx_add_vid(struct net_device
> *dev, __be16 proto,
> return -EBUSY;
> }
>
> - ret = dsa_port_vid_add(dp, vid, 0);
> + if (ntohs(proto) == ETH_P_8021AD)
> + flags |= BRIDGE_VLAN_INFO_8021AD;
> +
> + ret = dsa_port_vid_add(dp, vid, flags);
> if (ret)
> return ret;
>
> @@ -1744,7 +1748,8 @@ int dsa_slave_create(struct dsa_port *port)
>
> slave_dev->features = master->vlan_features | NETIF_F_HW_TC;
> if (ds->ops->port_vlan_add && ds->ops->port_vlan_del)
> - slave_dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
> + slave_dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER |
> + NETIF_F_HW_VLAN_STAG_FILTER;
> slave_dev->hw_features |= NETIF_F_HW_TC;
> slave_dev->features |= NETIF_F_LLTX;
> slave_dev->ethtool_ops = &dsa_slave_ethtool_ops;
>
