lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

netdev: Add support for rx flow hash configuration, using ethtool.

Browse Source 
Added new interfaces to ethtool to configure receive network flow
distribution across multiple rx rings using hashing.

Signed-off-by: Santwona Behera <santwona.behera@sun.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Santwona Behera
2008-07-02 03:47:41 -07:00
committed by David S. Miller
parent ecbed6a419
commit 0853ad66b1
2 changed files with 70 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
net/core/ethtool.c
View File

@ -209,6 +209,36 @@ static int ethtool_get_drvinfo(struct net_device *dev, void __user *useraddr)
return 0;
}
static int ethtool_set_rxhash(struct net_device *dev, void __user *useraddr)
{
struct ethtool_rxnfc cmd;
if (!dev->ethtool_ops->set_rxhash)
return -EOPNOTSUPP;
if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
return -EFAULT;
return dev->ethtool_ops->set_rxhash(dev, &cmd);
}
static int ethtool_get_rxhash(struct net_device *dev, void __user *useraddr)
{
struct ethtool_rxnfc info;
if (!dev->ethtool_ops->get_rxhash)
return -EOPNOTSUPP;
if (copy_from_user(&info, useraddr, sizeof(info)))
return -EFAULT;
dev->ethtool_ops->get_rxhash(dev, &info);
if (copy_to_user(useraddr, &info, sizeof(info)))
return -EFAULT;
return 0;
}
static int ethtool_get_regs(struct net_device *dev, char __user *useraddr)
{
struct ethtool_regs regs;
@ -826,6 +856,7 @@ int dev_ethtool(struct net *net, struct ifreq *ifr)
case ETHTOOL_GGSO:
case ETHTOOL_GFLAGS:
case ETHTOOL_GPFLAGS:
case ETHTOOL_GRXFH:
break;
default:
if (!capable(CAP_NET_ADMIN))
@ -977,6 +1008,12 @@ int dev_ethtool(struct net *net, struct ifreq *ifr)
rc = ethtool_set_value(dev, useraddr,
dev->ethtool_ops->set_priv_flags);
break;
case ETHTOOL_GRXFH:
rc = ethtool_get_rxhash(dev, useraddr);
break;
case ETHTOOL_SRXFH:
rc = ethtool_set_rxhash(dev, useraddr);
break;
default:
rc = -EOPNOTSUPP;
}