diff options
| author | stephen hemminger <shemminger@vyatta.com> | 2010-03-29 14:47:27 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-03-30 23:51:08 -0700 |
| commit | b00fabb4020d17bda4bea59507e09fadf573088d (patch) | |
| tree | db746ff4c223cc5ba98927d9f9421285952c7231 | |
| parent | 757b77e2b208490868cf21fd22d796eb9bd199c5 (diff) | |
netdev: ethtool RXHASH flag
This adds ethtool and device feature flag to allow control
of receive hashing offload.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/linux/ethtool.h | 1 | ||||
| -rw-r--r-- | include/linux/netdevice.h | 1 | ||||
| -rw-r--r-- | net/core/ethtool.c | 7 |
3 files changed, 8 insertions, 1 deletions
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index b33f316bb92e..b391969a0dd9 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -310,6 +310,7 @@ struct ethtool_perm_addr { enum ethtool_flags { ETH_FLAG_LRO = (1 << 15), /* LRO is enabled */ ETH_FLAG_NTUPLE = (1 << 27), /* N-tuple filters enabled */ + ETH_FLAG_RXHASH = (1 << 28), }; /* The following structures are for supporting RX network flow diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 53c272f2a734..b5670ab5107c 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -785,6 +785,7 @@ struct net_device { #define NETIF_F_SCTP_CSUM (1 << 25) /* SCTP checksum offload */ #define NETIF_F_FCOE_MTU (1 << 26) /* Supports max FCoE MTU, 2158 bytes*/ #define NETIF_F_NTUPLE (1 << 27) /* N-tuple filters supported */ +#define NETIF_F_RXHASH (1 << 28) /* Receive hashing offload */ /* Segmentation offload features */ #define NETIF_F_GSO_SHIFT 16 diff --git a/net/core/ethtool.c b/net/core/ethtool.c index f4cb6b6299d9..73c81edde8d9 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -121,7 +121,7 @@ int ethtool_op_set_ufo(struct net_device *dev, u32 data) * NETIF_F_xxx values in include/linux/netdevice.h */ static const u32 flags_dup_features = - (ETH_FLAG_LRO | ETH_FLAG_NTUPLE); + (ETH_FLAG_LRO | ETH_FLAG_NTUPLE | ETH_FLAG_RXHASH); u32 ethtool_op_get_flags(struct net_device *dev) { @@ -152,6 +152,11 @@ int ethtool_op_set_flags(struct net_device *dev, u32 data) features &= ~NETIF_F_NTUPLE; } + if (data & ETH_FLAG_RXHASH) + features |= NETIF_F_RXHASH; + else + features &= ~NETIF_F_RXHASH; + dev->features = features; return 0; } |