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ixgbe: pull ring configuration into it's own function 

These changes add ixgbe_configure_rx_ring which is used to setup the base
function pointers for the ring.

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 13:36:05 +00:00 committed by David S. Miller
parent 05abb126c1
commit acd37177cc
1 changed files with 20 additions and 13 deletions
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33
drivers/net/ixgbe/ixgbe_main.c
View File

@ -2655,6 +2655,23 @@ static void ixgbe_configure_rscctl(struct ixgbe_adapter *adapter, int index)
IXGBE_WRITE_REG(hw, IXGBE_RSCCTL(j), rscctrl);
}
static void ixgbe_configure_rx_ring(struct ixgbe_adapter *adapter,
struct ixgbe_ring *ring)
{
struct ixgbe_hw *hw = &adapter->hw;
u64 rdba = ring->dma;
u16 reg_idx = ring->reg_idx;
IXGBE_WRITE_REG(hw, IXGBE_RDBAL(reg_idx), (rdba & DMA_BIT_MASK(32)));
IXGBE_WRITE_REG(hw, IXGBE_RDBAH(reg_idx), (rdba >> 32));
IXGBE_WRITE_REG(hw, IXGBE_RDLEN(reg_idx),
ring->count * sizeof(union ixgbe_adv_rx_desc));
IXGBE_WRITE_REG(hw, IXGBE_RDH(reg_idx), 0);
IXGBE_WRITE_REG(hw, IXGBE_RDT(reg_idx), 0);
ring->head = IXGBE_RDH(reg_idx);
ring->tail = IXGBE_RDT(reg_idx);
}
/**
* ixgbe_configure_rx - Configure 8259x Receive Unit after Reset
* @adapter: board private structure
@ -2663,13 +2680,12 @@ static void ixgbe_configure_rscctl(struct ixgbe_adapter *adapter, int index)
**/
static void ixgbe_configure_rx(struct ixgbe_adapter *adapter)
{
u64 rdba;
struct ixgbe_hw *hw = &adapter->hw;
struct ixgbe_ring *rx_ring;
struct net_device *netdev = adapter->netdev;
int max_frame = netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
int i, j;
u32 rdlen, rxctrl;
int i;
u32 rxctrl;
u32 fctrl, hlreg0;
u32 rdrxctl;
int rx_buf_len;
@ -2718,7 +2734,6 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter)
#endif
IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0);
rdlen = adapter->rx_ring[0]->count * sizeof(union ixgbe_adv_rx_desc);
/* disable receives while setting up the descriptors */
rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl & ~IXGBE_RXCTRL_RXEN);
@ -2729,15 +2744,6 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter)
*/
for (i = 0; i < adapter->num_rx_queues; i++) {
rx_ring = adapter->rx_ring[i];
rdba = rx_ring->dma;
j = rx_ring->reg_idx;
IXGBE_WRITE_REG(hw, IXGBE_RDBAL(j), (rdba & DMA_BIT_MASK(32)));
IXGBE_WRITE_REG(hw, IXGBE_RDBAH(j), (rdba >> 32));
IXGBE_WRITE_REG(hw, IXGBE_RDLEN(j), rdlen);
IXGBE_WRITE_REG(hw, IXGBE_RDH(j), 0);
IXGBE_WRITE_REG(hw, IXGBE_RDT(j), 0);
rx_ring->head = IXGBE_RDH(j);
rx_ring->tail = IXGBE_RDT(j);
rx_ring->rx_buf_len = rx_buf_len;
if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED)
@ -2758,6 +2764,7 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter)
}
#endif /* IXGBE_FCOE */
ixgbe_configure_rx_ring(adapter, rx_ring);
ixgbe_configure_srrctl(adapter, rx_ring);
}