summaryrefslogtreecommitdiff
path: root/net/dsa/master.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/dsa/master.c')
-rw-r--r--net/dsa/master.c56
1 files changed, 55 insertions, 1 deletions
diff --git a/net/dsa/master.c b/net/dsa/master.c
index 54f5551fb799..c58f33931be1 100644
--- a/net/dsa/master.c
+++ b/net/dsa/master.c
@@ -126,6 +126,17 @@ static void dsa_master_get_strings(struct net_device *dev, uint32_t stringset,
}
}
+static int dsa_master_get_phys_port_name(struct net_device *dev,
+ char *name, size_t len)
+{
+ struct dsa_port *cpu_dp = dev->dsa_ptr;
+
+ if (snprintf(name, len, "p%d", cpu_dp->index) >= len)
+ return -EINVAL;
+
+ return 0;
+}
+
static int dsa_master_ethtool_setup(struct net_device *dev)
{
struct dsa_port *cpu_dp = dev->dsa_ptr;
@@ -158,6 +169,38 @@ static void dsa_master_ethtool_teardown(struct net_device *dev)
cpu_dp->orig_ethtool_ops = NULL;
}
+static int dsa_master_ndo_setup(struct net_device *dev)
+{
+ struct dsa_port *cpu_dp = dev->dsa_ptr;
+ struct dsa_switch *ds = cpu_dp->ds;
+ struct net_device_ops *ops;
+
+ if (dev->netdev_ops->ndo_get_phys_port_name)
+ return 0;
+
+ ops = devm_kzalloc(ds->dev, sizeof(*ops), GFP_KERNEL);
+ if (!ops)
+ return -ENOMEM;
+
+ cpu_dp->orig_ndo_ops = dev->netdev_ops;
+ if (cpu_dp->orig_ndo_ops)
+ memcpy(ops, cpu_dp->orig_ndo_ops, sizeof(*ops));
+
+ ops->ndo_get_phys_port_name = dsa_master_get_phys_port_name;
+
+ dev->netdev_ops = ops;
+
+ return 0;
+}
+
+static void dsa_master_ndo_teardown(struct net_device *dev)
+{
+ struct dsa_port *cpu_dp = dev->dsa_ptr;
+
+ dev->netdev_ops = cpu_dp->orig_ndo_ops;
+ cpu_dp->orig_ndo_ops = NULL;
+}
+
static ssize_t tagging_show(struct device *d, struct device_attribute *attr,
char *buf)
{
@@ -227,16 +270,27 @@ int dsa_master_setup(struct net_device *dev, struct dsa_port *cpu_dp)
if (ret)
return ret;
+ ret = dsa_master_ndo_setup(dev);
+ if (ret)
+ goto out_err_ethtool_teardown;
+
ret = sysfs_create_group(&dev->dev.kobj, &dsa_group);
if (ret)
- dsa_master_ethtool_teardown(dev);
+ goto out_err_ndo_teardown;
+
+ return ret;
+out_err_ndo_teardown:
+ dsa_master_ndo_teardown(dev);
+out_err_ethtool_teardown:
+ dsa_master_ethtool_teardown(dev);
return ret;
}
void dsa_master_teardown(struct net_device *dev)
{
sysfs_remove_group(&dev->dev.kobj, &dsa_group);
+ dsa_master_ndo_teardown(dev);
dsa_master_ethtool_teardown(dev);
dsa_master_reset_mtu(dev);