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| author |   Santwona Behera <santwona.behera@sun.com> | 2008-07-02 03:47:41 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2008-07-02 03:47:41 -0700 |
| commit | 0853ad66b14feb12acde7ac13b7c3b75770a0adc (patch) | |
| tree | 0091f893aec69d708ec37ed9e56e1467fd5c95d8 /net/core/ethtool.c | |
| parent | sctp: Mark GET_PEER|LOCAL_ADDR_OLD deprecated. (diff) | |
| download | linux-dev-0853ad66b14feb12acde7ac13b7c3b75770a0adc.tar.xz linux-dev-0853ad66b14feb12acde7ac13b7c3b75770a0adc.zip | |
netdev: Add support for rx flow hash configuration, using ethtool.
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>
Diffstat (limited to 'net/core/ethtool.c')
| -rw-r--r-- | net/core/ethtool.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/net/core/ethtool.c b/net/core/ethtool.c index 0133b5ebd545..14ada537f895 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -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; } |