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ixgbe: add rxhash support

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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>
This commit is contained in:
Emil Tantilov
2011-04-23 04:50:40 +00:00
committed by Jeff Kirsher
parent 936db3559f
commit 67a74ee2a2
2 changed files with 19 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/net/ixgbe/ixgbe_ethtool.c
View File

@@ -2253,8 +2253,13 @@ static int ixgbe_set_flags(struct net_device *netdev, u32 data)
need_reset = (data & ETH_FLAG_RXVLAN) != need_reset = (data & ETH_FLAG_RXVLAN) !=
(netdev->features & NETIF_F_HW_VLAN_RX); (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 | 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) if (rc)
return rc; return rc;

14
drivers/net/ixgbe/ixgbe_main.c
View File

@@ -1063,8 +1063,14 @@ static int __ixgbe_notify_dca(struct device *dev, void *data)
return 0; return 0;
} }
#endif /* CONFIG_IXGBE_DCA */ #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 * ixgbe_receive_skb - Send a completed packet up the stack
* @adapter: board private structure * @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); 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 */ /* probably a little skewed due to removing CRC */
total_rx_bytes += skb->len; 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_TSO;
netdev->features |= NETIF_F_TSO6; netdev->features |= NETIF_F_TSO6;
netdev->features |= NETIF_F_GRO; netdev->features |= NETIF_F_GRO;
netdev->features |= NETIF_F_RXHASH;
switch (adapter->hw.mac.type) { switch (adapter->hw.mac.type) {
case ixgbe_mac_82599EB: case ixgbe_mac_82599EB:
@@ -7441,6 +7450,9 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
if (err) if (err)
goto err_sw_init; goto err_sw_init;
if (!(adapter->flags & IXGBE_FLAG_RSS_ENABLED))
netdev->features &= ~NETIF_F_RXHASH;
switch (pdev->device) { switch (pdev->device) {
case IXGBE_DEV_ID_82599_SFP: case IXGBE_DEV_ID_82599_SFP:
/* Only this subdevice supports WOL */ /* Only this subdevice supports WOL */