diff options
| author | Emil Tantilov <emil.s.tantilov@intel.com> | 2011-04-23 04:50:40 +0000 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-05-07 03:14:22 -0700 |
| commit | 67a74ee2a24957012661dc4400e4f8e363d25fbb (patch) | |
| tree | a97dd99b4a550755b2d6aee0816fc116a463bf5e | |
| parent | 936db3559fc4f6d2892234cadcbd88b8a7d34898 (diff) | |
| download | linux-67a74ee2a24957012661dc4400e4f8e363d25fbb.tar.bz2 | |
ixgbe: add rxhash support
feed RSS hash into skb->rxhash
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Evan Swanson <evan.swanson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_ethtool.c | 7 | ||||
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_main.c | 14 |
2 files changed, 19 insertions, 2 deletions
diff --git a/drivers/net/ixgbe/ixgbe_ethtool.c b/drivers/net/ixgbe/ixgbe_ethtool.c index f2efa3245352..545b231b2a74 100644 --- a/drivers/net/ixgbe/ixgbe_ethtool.c +++ b/drivers/net/ixgbe/ixgbe_ethtool.c @@ -2253,8 +2253,13 @@ static int ixgbe_set_flags(struct net_device *netdev, u32 data) need_reset = (data & ETH_FLAG_RXVLAN) != (netdev->features & NETIF_F_HW_VLAN_RX); + if ((data & ETH_FLAG_RXHASH) && + !(adapter->flags & IXGBE_FLAG_RSS_ENABLED)) + return -EOPNOTSUPP; + rc = ethtool_op_set_flags(netdev, data, ETH_FLAG_LRO | ETH_FLAG_NTUPLE | - ETH_FLAG_RXVLAN | ETH_FLAG_TXVLAN); + ETH_FLAG_RXVLAN | ETH_FLAG_TXVLAN | + ETH_FLAG_RXHASH); if (rc) return rc; diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index eebb1921c660..56cc9a10c717 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -1063,8 +1063,14 @@ static int __ixgbe_notify_dca(struct device *dev, void *data) return 0; } - #endif /* CONFIG_IXGBE_DCA */ + +static inline void ixgbe_rx_hash(union ixgbe_adv_rx_desc *rx_desc, + struct sk_buff *skb) +{ + skb->rxhash = le32_to_cpu(rx_desc->wb.lower.hi_dword.rss); +} + /** * ixgbe_receive_skb - Send a completed packet up the stack * @adapter: board private structure @@ -1456,6 +1462,8 @@ static void ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector, } ixgbe_rx_checksum(adapter, rx_desc, skb); + if (adapter->netdev->features & NETIF_F_RXHASH) + ixgbe_rx_hash(rx_desc, skb); /* probably a little skewed due to removing CRC */ total_rx_bytes += skb->len; @@ -7361,6 +7369,7 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev, netdev->features |= NETIF_F_TSO; netdev->features |= NETIF_F_TSO6; netdev->features |= NETIF_F_GRO; + netdev->features |= NETIF_F_RXHASH; switch (adapter->hw.mac.type) { case ixgbe_mac_82599EB: @@ -7441,6 +7450,9 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev, if (err) goto err_sw_init; + if (!(adapter->flags & IXGBE_FLAG_RSS_ENABLED)) + netdev->features &= ~NETIF_F_RXHASH; + switch (pdev->device) { case IXGBE_DEV_ID_82599_SFP: /* Only this subdevice supports WOL */ |