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ixgbe: add helper function for setting RSS key in preparation of X550

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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 <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Don Skidmore 2014-11-09 06:42:57 +00:00 committed by Jeff Kirsher
parent 9a75a1ac77
commit d1b849b9e9
1 changed files with 20 additions and 12 deletions
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32
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
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@ -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);
}