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authorFan Du <fan.du@intel.com>2015-04-29 10:57:40 +0800
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2015-07-17 19:59:07 -0700
commit1e1429d6ce6e6fe38e45c960133e9c9b3c62cbc6 (patch)
tree72faf8ca49c6ffa2f8e0121fe31a8fd25bac0fcd /drivers/net/ethernet/intel/ixgbevf
parent7edda4b8711d58dabb55e6afec03e8177647f266 (diff)
downloadlinux-linaro-stable-1e1429d6ce6e6fe38e45c960133e9c9b3c62cbc6.tar.gz
ixgbevf: Set Rx hash type for ingress packets
Set hash type for ingress packets according to NIC advanced receive descriptors RSS type part. 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/ixgbevf')
-rw-r--r--drivers/net/ethernet/intel/ixgbevf/defines.h12
-rw-r--r--drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c27
2 files changed, 39 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ixgbevf/defines.h b/drivers/net/ethernet/intel/ixgbevf/defines.h
index 770e21a64388..58434584b16d 100644
--- a/drivers/net/ethernet/intel/ixgbevf/defines.h
+++ b/drivers/net/ethernet/intel/ixgbevf/defines.h
@@ -161,6 +161,18 @@ typedef u32 ixgbe_link_speed;
#define IXGBE_RXDADV_SPLITHEADER_EN 0x00001000
#define IXGBE_RXDADV_SPH 0x8000
+/* RSS Hash results */
+#define IXGBE_RXDADV_RSSTYPE_NONE 0x00000000
+#define IXGBE_RXDADV_RSSTYPE_IPV4_TCP 0x00000001
+#define IXGBE_RXDADV_RSSTYPE_IPV4 0x00000002
+#define IXGBE_RXDADV_RSSTYPE_IPV6_TCP 0x00000003
+#define IXGBE_RXDADV_RSSTYPE_IPV6_EX 0x00000004
+#define IXGBE_RXDADV_RSSTYPE_IPV6 0x00000005
+#define IXGBE_RXDADV_RSSTYPE_IPV6_TCP_EX 0x00000006
+#define IXGBE_RXDADV_RSSTYPE_IPV4_UDP 0x00000007
+#define IXGBE_RXDADV_RSSTYPE_IPV6_UDP 0x00000008
+#define IXGBE_RXDADV_RSSTYPE_IPV6_UDP_EX 0x00000009
+
#define IXGBE_RXD_ERR_FRAME_ERR_MASK ( \
IXGBE_RXD_ERR_CE | \
IXGBE_RXD_ERR_LE | \
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index acfa05154436..b2c86f1b8a9f 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -457,6 +457,32 @@ static void ixgbevf_rx_skb(struct ixgbevf_q_vector *q_vector,
napi_gro_receive(&q_vector->napi, skb);
}
+#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 ixgbevf_rx_hash(struct ixgbevf_ring *ring,
+ union ixgbe_adv_rx_desc *rx_desc,
+ struct sk_buff *skb)
+{
+ 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);
+}
+
/**
* ixgbevf_rx_checksum - indicate in skb if hw indicated a good cksum
* @ring: structure containig ring specific data
@@ -506,6 +532,7 @@ static void ixgbevf_process_skb_fields(struct ixgbevf_ring *rx_ring,
union ixgbe_adv_rx_desc *rx_desc,
struct sk_buff *skb)
{
+ ixgbevf_rx_hash(rx_ring, rx_desc, skb);
ixgbevf_rx_checksum(rx_ring, rx_desc, skb);
if (ixgbevf_test_staterr(rx_desc, IXGBE_RXD_STAT_VP)) {