diff mbox series

[net-next,v3,11/12] net: dsa: Implement ndo_get_port_parent_id()

Message ID 20190205235326.14600-12-f.fainelli@gmail.com (mailing list archive)
State Superseded
Headers show
Series net: Introduce ndo_get_port_parent_id() | expand

Commit Message

Florian Fainelli Feb. 5, 2019, 11:53 p.m. UTC
DSA implements SWITCHDEV_ATTR_ID_PORT_PARENT_ID and we want to get rid
of switchdev_ops eventually, ease that migration by implementing a
ndo_get_port_parent_id() function which returns what
switchdev_port_attr_get() would do.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 net/dsa/slave.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

Comments

Jiri Pirko Feb. 6, 2019, 1:27 p.m. UTC | #1
Wed, Feb 06, 2019 at 12:53:25AM CET, f.fainelli@gmail.com wrote:
>DSA implements SWITCHDEV_ATTR_ID_PORT_PARENT_ID and we want to get rid
>of switchdev_ops eventually, ease that migration by implementing a
>ndo_get_port_parent_id() function which returns what
>switchdev_port_attr_get() would do.
>
>Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

Acked-by: Jiri Pirko <jiri@mellanox.com>
Vivien Didelot Feb. 6, 2019, 6:21 p.m. UTC | #2
Hi Florian,

On Tue,  5 Feb 2019 15:53:25 -0800, Florian Fainelli <f.fainelli@gmail.com> wrote:
> DSA implements SWITCHDEV_ATTR_ID_PORT_PARENT_ID and we want to get rid
> of switchdev_ops eventually, ease that migration by implementing a
> ndo_get_port_parent_id() function which returns what
> switchdev_port_attr_get() would do.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
> ---
>  net/dsa/slave.c | 18 ++++++++++++------
>  1 file changed, 12 insertions(+), 6 deletions(-)
> 
> diff --git a/net/dsa/slave.c b/net/dsa/slave.c
> index 91de3a663226..70395a0ae52e 100644
> --- a/net/dsa/slave.c
> +++ b/net/dsa/slave.c
> @@ -362,18 +362,23 @@ static int dsa_slave_port_obj_del(struct net_device *dev,
>  	return err;
>  }
>  
> -static int dsa_slave_port_attr_get(struct net_device *dev,
> -				   struct switchdev_attr *attr)
> +static int dsa_slave_get_port_parent_id(struct net_device *dev,
> +					struct netdev_phys_item_id *ppid)
>  {
>  	struct dsa_port *dp = dsa_slave_to_port(dev);
>  	struct dsa_switch *ds = dp->ds;
>  	struct dsa_switch_tree *dst = ds->dst;
>  
> +	ppid->id_len = sizeof(dst->index);
> +	memcpy(&ppid->id, &dst->index, ppid->id_len);
> +
> +	return 0;
> +}

Finally this will give us a way to distinguish two ports with the same switch
and port IDs on a system with two disjoint switch trees, thanks!

Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
diff mbox series

Patch

diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 91de3a663226..70395a0ae52e 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -362,18 +362,23 @@  static int dsa_slave_port_obj_del(struct net_device *dev,
 	return err;
 }
 
-static int dsa_slave_port_attr_get(struct net_device *dev,
-				   struct switchdev_attr *attr)
+static int dsa_slave_get_port_parent_id(struct net_device *dev,
+					struct netdev_phys_item_id *ppid)
 {
 	struct dsa_port *dp = dsa_slave_to_port(dev);
 	struct dsa_switch *ds = dp->ds;
 	struct dsa_switch_tree *dst = ds->dst;
 
+	ppid->id_len = sizeof(dst->index);
+	memcpy(&ppid->id, &dst->index, ppid->id_len);
+
+	return 0;
+}
+
+static int dsa_slave_port_attr_get(struct net_device *dev,
+				   struct switchdev_attr *attr)
+{
 	switch (attr->id) {
-	case SWITCHDEV_ATTR_ID_PORT_PARENT_ID:
-		attr->u.ppid.id_len = sizeof(dst->index);
-		memcpy(&attr->u.ppid.id, &dst->index, attr->u.ppid.id_len);
-		break;
 	case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT:
 		attr->u.brport_flags_support = 0;
 		break;
@@ -1046,6 +1051,7 @@  static const struct net_device_ops dsa_slave_netdev_ops = {
 	.ndo_get_phys_port_name	= dsa_slave_get_phys_port_name,
 	.ndo_setup_tc		= dsa_slave_setup_tc,
 	.ndo_get_stats64	= dsa_slave_get_stats64,
+	.ndo_get_port_parent_id	= dsa_slave_get_port_parent_id,
 };
 
 static const struct switchdev_ops dsa_slave_switchdev_ops = {