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[ETHTOOL]: Add ETHTOOL_[GS]FLAGS sub-ioctls

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Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jeff Garzik
2007-08-15 16:00:51 -07:00
committed by David S. Miller
parent 0bcc181618
commit 3ae7c0b2e3
3 changed files with 83 additions and 0 deletions
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61
net/core/ethtool.c
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@@ -109,6 +109,32 @@ int ethtool_op_set_ufo(struct net_device *dev, u32 data)
return 0;
}
/* the following list of flags are the same as their associated
* NETIF_F_xxx values in include/linux/netdevice.h
*/
static const u32 flags_dup_features =
ETH_FLAG_LRO;
u32 ethtool_op_get_flags(struct net_device *dev)
{
/* in the future, this function will probably contain additional
* handling for flags which are not so easily handled
* by a simple masking operation
*/
return dev->features & flags_dup_features;
}
int ethtool_op_set_flags(struct net_device *dev, u32 data)
{
if (data & ETH_FLAG_LRO)
dev->features |= NETIF_F_LRO;
else
dev->features &= ~NETIF_F_LRO;
return 0;
}
/* Handlers for each ethtool command */
static int ethtool_get_settings(struct net_device *dev, void __user *useraddr)
@@ -783,6 +809,33 @@ static int ethtool_get_perm_addr(struct net_device *dev, void __user *useraddr)
return 0;
}
static int ethtool_get_flags(struct net_device *dev, char __user *useraddr)
{
struct ethtool_value edata = { ETHTOOL_GFLAGS };
if (!dev->ethtool_ops->get_flags)
return -EOPNOTSUPP;
edata.data = dev->ethtool_ops->get_flags(dev);
if (copy_to_user(useraddr, &edata, sizeof(edata)))
return -EFAULT;
return 0;
}
static int ethtool_set_flags(struct net_device *dev, char __user *useraddr)
{
struct ethtool_value edata;
if (!dev->ethtool_ops->set_flags)
return -EOPNOTSUPP;
if (copy_from_user(&edata, useraddr, sizeof(edata)))
return -EFAULT;
return dev->ethtool_ops->set_flags(dev, edata.data);
}
/* The main entry point in this file. Called from net/core/dev.c */
int dev_ethtool(struct ifreq *ifr)
@@ -935,6 +988,12 @@ int dev_ethtool(struct ifreq *ifr)
case ETHTOOL_SGSO:
rc = ethtool_set_gso(dev, useraddr);
break;
case ETHTOOL_GFLAGS:
rc = ethtool_get_flags(dev, useraddr);
break;
case ETHTOOL_SFLAGS:
rc = ethtool_set_flags(dev, useraddr);
break;
default:
rc = -EOPNOTSUPP;
}
@@ -959,3 +1018,5 @@ EXPORT_SYMBOL(ethtool_op_set_tx_hw_csum);
EXPORT_SYMBOL(ethtool_op_set_tx_ipv6_csum);
EXPORT_SYMBOL(ethtool_op_set_ufo);
EXPORT_SYMBOL(ethtool_op_get_ufo);
EXPORT_SYMBOL(ethtool_op_set_flags);
EXPORT_SYMBOL(ethtool_op_get_flags);