ixgbe: consolidate packet buffer allocation

[pandora-kernel.git] / drivers / net / ixgbe / ixgbe_82598.c

diff --git a/drivers/net/ixgbe/ixgbe_82598.c b/drivers/net/ixgbe/ixgbe_82598.c
index 8179e50..bb417d7 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_82598.c
+++ b/drivers/net/ixgbe/ixgbe_82598.c
@@ -1242,6 +1242,47 @@ static void ixgbe_set_lan_id_multi_port_pcie_82598(struct ixgbe_hw *hw)
        }
 }
 
+/**
+ * ixgbe_set_rxpba_82598 - Configure packet buffers
+ * @hw: pointer to hardware structure
+ * @dcb_config: pointer to ixgbe_dcb_config structure
+ *
+ * Configure packet buffers.
+ */
+static void ixgbe_set_rxpba_82598(struct ixgbe_hw *hw, int num_pb, u32 headroom,
+                                 int strategy)
+{
+       u32 rxpktsize = IXGBE_RXPBSIZE_64KB;
+       u8  i = 0;
+
+       if (!num_pb)
+               return;
+
+       /* Setup Rx packet buffer sizes */
+       switch (strategy) {
+       case PBA_STRATEGY_WEIGHTED:
+               /* Setup the first four at 80KB */
+               rxpktsize = IXGBE_RXPBSIZE_80KB;
+               for (; i < 4; i++)
+                       IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
+               /* Setup the last four at 48KB...don't re-init i */
+               rxpktsize = IXGBE_RXPBSIZE_48KB;
+               /* Fall Through */
+       case PBA_STRATEGY_EQUAL:
+       default:
+               /* Divide the remaining Rx packet buffer evenly among the TCs */
+               for (; i < IXGBE_MAX_PACKET_BUFFERS; i++)
+                       IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
+               break;
+       }
+
+       /* Setup Tx packet buffer sizes */
+       for (i = 0; i < IXGBE_MAX_PACKET_BUFFERS; i++)
+               IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), IXGBE_TXPBSIZE_40KB);
+
+       return;
+}
+
 static struct ixgbe_mac_operations mac_ops_82598 = {
        .init_hw                = &ixgbe_init_hw_generic,
        .reset_hw               = &ixgbe_reset_hw_82598,
@@ -1257,6 +1298,7 @@ static struct ixgbe_mac_operations mac_ops_82598 = {
        .read_analog_reg8       = &ixgbe_read_analog_reg8_82598,
        .write_analog_reg8      = &ixgbe_write_analog_reg8_82598,
        .setup_link             = &ixgbe_setup_mac_link_82598,
+       .set_rxpba              = &ixgbe_set_rxpba_82598,
        .check_link             = &ixgbe_check_mac_link_82598,
        .get_link_capabilities  = &ixgbe_get_link_capabilities_82598,
        .led_on                 = &ixgbe_led_on_generic,