From d1b849b9e994ef5a283efc288fc7da6a2471219b Mon Sep 17 00:00:00 2001 From: Don Skidmore Date: Sun, 9 Nov 2014 06:42:57 +0000 Subject: [PATCH] ixgbe: add helper function for setting RSS key in preparation of X550 Split off the setting of the RSS key into its own function. This will help when we add support for X550 which can have different RSS keys per pool. Signed-off-by: Don Skidmore Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 32 ++++++++++++------- 1 file changed, 20 insertions(+), 12 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 355d1f79d274..a5ca877eac1a 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -3210,14 +3210,10 @@ static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter, IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(reg_idx), srrctl); } -static void ixgbe_setup_mrqc(struct ixgbe_adapter *adapter) +static void ixgbe_setup_reta(struct ixgbe_adapter *adapter, const u32 *seed) { struct ixgbe_hw *hw = &adapter->hw; - static const u32 seed[10] = { 0xE291D73D, 0x1805EC6C, 0x2A94B30D, - 0xA54F2BEC, 0xEA49AF7C, 0xE214AD3D, 0xB855AABE, - 0x6A3E67EA, 0x14364D17, 0x3BED200D}; - u32 mrqc = 0, reta = 0; - u32 rxcsum; + u32 reta = 0; int i, j; u16 rss_i = adapter->ring_feature[RING_F_RSS].indices; @@ -3243,6 +3239,16 @@ static void ixgbe_setup_mrqc(struct ixgbe_adapter *adapter) if ((i & 3) == 3) IXGBE_WRITE_REG(hw, IXGBE_RETA(i >> 2), reta); } +} + +static void ixgbe_setup_mrqc(struct ixgbe_adapter *adapter) +{ + struct ixgbe_hw *hw = &adapter->hw; + static const u32 seed[10] = { 0xE291D73D, 0x1805EC6C, 0x2A94B30D, + 0xA54F2BEC, 0xEA49AF7C, 0xE214AD3D, 0xB855AABE, + 0x6A3E67EA, 0x14364D17, 0x3BED200D}; + u32 mrqc = 0, rss_field = 0; + u32 rxcsum; /* Disable indicating checksum in descriptor, enables RSS hash */ rxcsum = IXGBE_READ_REG(hw, IXGBE_RXCSUM); @@ -3275,16 +3281,18 @@ static void ixgbe_setup_mrqc(struct ixgbe_adapter *adapter) } /* Perform hash on these packet types */ - mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4 | - IXGBE_MRQC_RSS_FIELD_IPV4_TCP | - IXGBE_MRQC_RSS_FIELD_IPV6 | - IXGBE_MRQC_RSS_FIELD_IPV6_TCP; + rss_field |= IXGBE_MRQC_RSS_FIELD_IPV4 | + IXGBE_MRQC_RSS_FIELD_IPV4_TCP | + IXGBE_MRQC_RSS_FIELD_IPV6 | + IXGBE_MRQC_RSS_FIELD_IPV6_TCP; if (adapter->flags2 & IXGBE_FLAG2_RSS_FIELD_IPV4_UDP) - mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4_UDP; + rss_field |= IXGBE_MRQC_RSS_FIELD_IPV4_UDP; if (adapter->flags2 & IXGBE_FLAG2_RSS_FIELD_IPV6_UDP) - mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_UDP; + rss_field |= IXGBE_MRQC_RSS_FIELD_IPV6_UDP; + ixgbe_setup_reta(adapter, seed); + mrqc |= rss_field; IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc); } -- 2.20.1