diff options
| author | Fan Du <fan.du@intel.com> | 2015-04-29 10:57:39 +0800 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2015-07-17 19:59:06 -0700 |
| commit | 7edda4b8711d58dabb55e6afec03e8177647f266 (patch) | |
| tree | 345fa44fc4c8fe8e41112b1ced3e840bfdb9d7eb /drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | |
| parent | 5505bdb54d92267a5b6f092c337bd84d247bcf49 (diff) | |
ixgbe: Specify Rx hash type WRT Rx desc RSS type
RSS could be leveraged by taking account L4 src/dst ports
as ingredients, thus ingress skb Rx hash type should honor
such the real configuration.
Signed-off-by: Fan Du <fan.du@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/ixgbe/ixgbe_main.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 9aa6104e34ea..3e6a9319c718 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -1360,14 +1360,31 @@ static int __ixgbe_notify_dca(struct device *dev, void *data) } #endif /* CONFIG_IXGBE_DCA */ + +#define IXGBE_RSS_L4_TYPES_MASK \ + ((1ul << IXGBE_RXDADV_RSSTYPE_IPV4_TCP) | \ + (1ul << IXGBE_RXDADV_RSSTYPE_IPV4_UDP) | \ + (1ul << IXGBE_RXDADV_RSSTYPE_IPV6_TCP) | \ + (1ul << IXGBE_RXDADV_RSSTYPE_IPV6_UDP)) + static inline void ixgbe_rx_hash(struct ixgbe_ring *ring, union ixgbe_adv_rx_desc *rx_desc, struct sk_buff *skb) { - if (ring->netdev->features & NETIF_F_RXHASH) - skb_set_hash(skb, - le32_to_cpu(rx_desc->wb.lower.hi_dword.rss), - PKT_HASH_TYPE_L3); + u16 rss_type; + + if (!(ring->netdev->features & NETIF_F_RXHASH)) + return; + + rss_type = le16_to_cpu(rx_desc->wb.lower.lo_dword.hs_rss.pkt_info) & + IXGBE_RXDADV_RSSTYPE_MASK; + + if (!rss_type) + return; + + skb_set_hash(skb, le32_to_cpu(rx_desc->wb.lower.hi_dword.rss), + (IXGBE_RSS_L4_TYPES_MASK & (1ul << rss_type)) ? + PKT_HASH_TYPE_L4 : PKT_HASH_TYPE_L3); } #ifdef IXGBE_FCOE |