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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 <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
hifive-unleashed-5.1
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);
}