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ixgbe: move all GPIE register config into a single function

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This change moves all GPIE register configuration into a single function.
The advantage of this is that we can avoid a number of unnecessary
read/modify/write cycles on the register.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexander Duyck 2010-08-19 13:39:20 +00:00 committed by David S. Miller
parent f5b4a52e81
commit a34bcfffae
1 changed files with 30 additions and 42 deletions
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72
drivers/net/ixgbe/ixgbe_main.c
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@ -3362,38 +3362,15 @@ static inline void ixgbe_rx_desc_queue_enable(struct ixgbe_adapter *adapter,
(adapter->rx_ring[rxr]->count - 1));
}
static int ixgbe_up_complete(struct ixgbe_adapter *adapter)
static void ixgbe_setup_gpie(struct ixgbe_adapter *adapter)
{
struct ixgbe_hw *hw = &adapter->hw;
int i, j = 0;
int num_rx_rings = adapter->num_rx_queues;
int err;
u32 txdctl, rxdctl;
u32 dmatxctl;
u32 gpie;
u32 ctrl_ext;
ixgbe_get_hw_control(adapter);
if ((adapter->flags & IXGBE_FLAG_MSIX_ENABLED) ||
(adapter->flags & IXGBE_FLAG_MSI_ENABLED)) {
if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) {
gpie = (IXGBE_GPIE_MSIX_MODE | IXGBE_GPIE_EIAME |
IXGBE_GPIE_PBA_SUPPORT | IXGBE_GPIE_OCD);
} else {
/* MSI only */
gpie = 0;
}
if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) {
gpie &= ~IXGBE_GPIE_VTMODE_MASK;
gpie |= IXGBE_GPIE_VTMODE_64;
}
/* XXX: to interrupt immediately for EICS writes, enable this */
/* gpie |= IXGBE_GPIE_EIMEN; */
IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
}
u32 gpie = 0;
if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) {
gpie = IXGBE_GPIE_MSIX_MODE | IXGBE_GPIE_PBA_SUPPORT |
IXGBE_GPIE_OCD;
gpie |= IXGBE_GPIE_EIAME;
/*
* use EIAM to auto-mask when MSI-X interrupt is asserted
* this saves a register write for every interrupt
@ -3414,26 +3391,37 @@ static int ixgbe_up_complete(struct ixgbe_adapter *adapter)
IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE);
}
/* Enable Thermal over heat sensor interrupt */
if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) {
gpie = IXGBE_READ_REG(hw, IXGBE_GPIE);
gpie |= IXGBE_SDP0_GPIEN;
IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
/* XXX: to interrupt immediately for EICS writes, enable this */
/* gpie |= IXGBE_GPIE_EIMEN; */
if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) {
gpie &= ~IXGBE_GPIE_VTMODE_MASK;
gpie |= IXGBE_GPIE_VTMODE_64;
}
/* Enable fan failure interrupt if media type is copper */
if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) {
gpie = IXGBE_READ_REG(hw, IXGBE_GPIE);
/* Enable fan failure interrupt */
if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE)
gpie |= IXGBE_SDP1_GPIEN;
IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
}
if (hw->mac.type == ixgbe_mac_82599EB) {
gpie = IXGBE_READ_REG(hw, IXGBE_GPIE);
if (hw->mac.type == ixgbe_mac_82599EB)
gpie |= IXGBE_SDP1_GPIEN;
gpie |= IXGBE_SDP2_GPIEN;
IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
}
IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
}
static int ixgbe_up_complete(struct ixgbe_adapter *adapter)
{
struct ixgbe_hw *hw = &adapter->hw;
int i, j = 0;
int num_rx_rings = adapter->num_rx_queues;
int err;
u32 txdctl, rxdctl;
u32 dmatxctl;
u32 ctrl_ext;
ixgbe_get_hw_control(adapter);
ixgbe_setup_gpie(adapter);
if (hw->mac.type == ixgbe_mac_82599EB) {
/* DMATXCTL.EN must be set after all Tx queue config is done */