diff options
| author | Alexander Duyck <alexander.h.duyck@intel.com> | 2010-08-19 13:36:05 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-08-19 16:40:51 -0700 |
| commit | acd37177cc2e034ecb6cbb784a8b998229fa85c4 (patch) | |
| tree | 775e9f9bdda2aaefca76f180e5828c1cf05a838c /drivers/net | |
| parent | 05abb126c148b081ee9da5a611960e2a80205ea2 (diff) | |
| download | op-kernel-dev-acd37177cc2e034ecb6cbb784a8b998229fa85c4.zip op-kernel-dev-acd37177cc2e034ecb6cbb784a8b998229fa85c4.tar.gz | |
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>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_main.c | 33 |
1 files changed, 20 insertions, 13 deletions
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index f5d8902..ddabe14 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -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); } |
