diff options
Diffstat (limited to 'drivers/infiniband/ulp/ipoib/ipoib_main.c')
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_main.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index 900335a36e45..ff17fe3c765b 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -1019,6 +1019,37 @@ static ssize_t show_pkey(struct device *dev, } static DEVICE_ATTR(pkey, S_IRUGO, show_pkey, NULL); +static ssize_t show_umcast(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct ipoib_dev_priv *priv = netdev_priv(to_net_dev(dev)); + + return sprintf(buf, "%d\n", test_bit(IPOIB_FLAG_UMCAST, &priv->flags)); +} + +static ssize_t set_umcast(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct ipoib_dev_priv *priv = netdev_priv(to_net_dev(dev)); + unsigned long umcast_val = simple_strtoul(buf, NULL, 0); + + if (umcast_val > 0) { + set_bit(IPOIB_FLAG_UMCAST, &priv->flags); + ipoib_warn(priv, "ignoring multicast groups joined directly " + "by userspace\n"); + } else + clear_bit(IPOIB_FLAG_UMCAST, &priv->flags); + + return count; +} +static DEVICE_ATTR(umcast, S_IWUSR | S_IRUGO, show_umcast, set_umcast); + +int ipoib_add_umcast_attr(struct net_device *dev) +{ + return device_create_file(&dev->dev, &dev_attr_umcast); +} + static ssize_t create_child(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) @@ -1136,6 +1167,8 @@ static struct net_device *ipoib_add_port(const char *format, goto sysfs_failed; if (ipoib_add_pkey_attr(priv->dev)) goto sysfs_failed; + if (ipoib_add_umcast_attr(priv->dev)) + goto sysfs_failed; if (device_create_file(&priv->dev->dev, &dev_attr_create_child)) goto sysfs_failed; if (device_create_file(&priv->dev->dev, &dev_attr_delete_child)) |