/**
* e1000_setup_link_82542 - Setup flow control and link settings
* @hw: pointer to the HW structure
*
* Determines which flow control settings to use, then configures flow
* control. Calls the appropriate media-specific link configuration
* function. Assuming the adapter has a valid link partner, a valid link
* should be established. Assumes the hardware has previously been reset
* and the transmitter and receiver are not enabled.
**/
static s32 e1000_setup_link_82542(struct e1000_hw *hw)
{
struct e1000_mac_info *mac = &hw->mac;
s32 ret_val = E1000_SUCCESS;
DEBUGFUNC("e1000_setup_link_82542");
ret_val = e1000_set_default_fc_generic(hw);
if (ret_val)
goto out;
hw->fc.requested_mode &= ~e1000_fc_tx_pause;
if (mac->report_tx_early == 1)
hw->fc.requested_mode &= ~e1000_fc_rx_pause;
/*
* Save off the requested flow control mode for use later. Depending
* on the link partner's capabilities, we may or may not use this mode.
*/
hw->fc.current_mode = hw->fc.requested_mode;
DEBUGOUT1("After fix-ups FlowControl is now = %x\n",
hw->fc.current_mode);
/* Call the necessary subroutine to configure the link. */
ret_val = mac->ops.setup_physical_interface(hw);
if (ret_val)
goto out;
/*
* Initialize the flow control address, type, and PAUSE timer
* registers to their default values. This is done even if flow
* control is disabled, because it does not hurt anything to
* initialize these registers.
*/
DEBUGOUT("Initializing Flow Control address, type and timer regs\n");
E1000_WRITE_REG(hw, E1000_FCAL, FLOW_CONTROL_ADDRESS_LOW);
E1000_WRITE_REG(hw, E1000_FCAH, FLOW_CONTROL_ADDRESS_HIGH);
E1000_WRITE_REG(hw, E1000_FCT, FLOW_CONTROL_TYPE);
E1000_WRITE_REG(hw, E1000_FCTTV, hw->fc.pause_time);
ret_val = e1000_set_fc_watermarks_generic(hw);
out:
return ret_val;
}
/**
* e1000_setup_link_82542 - Setup flow control and link settings
* @hw: pointer to the HW structure
*
* Determines which flow control settings to use, then configures flow
* control. Calls the appropriate media-specific link configuration
* function. Assuming the adapter has a valid link partner, a valid link
* should be established. Assumes the hardware has previously been reset
* and the transmitter and receiver are not enabled. This is a function
* pointer entry point called by the api module.
**/
static s32 e1000_setup_link_82542(struct e1000_hw *hw)
{
struct e1000_mac_info *mac = &hw->mac;
s32 ret_val = E1000_SUCCESS;
DEBUGFUNC("e1000_setup_link_82542");
ret_val = e1000_set_default_fc_generic(hw);
if (ret_val)
goto out;
hw->fc.type &= ~e1000_fc_tx_pause;
if (mac->report_tx_early == 1)
hw->fc.type &= ~e1000_fc_rx_pause;
/*
* We want to save off the original Flow Control configuration just in
* case we get disconnected and then reconnected into a different hub
* or switch with different Flow Control capabilities.
*/
hw->fc.original_type = hw->fc.type;
DEBUGOUT1("After fix-ups FlowControl is now = %x\n", hw->fc.type);
/* Call the necessary subroutine to configure the link. */
ret_val = mac->ops.setup_physical_interface(hw);
if (ret_val)
goto out;
/*
* Initialize the flow control address, type, and PAUSE timer
* registers to their default values. This is done even if flow
* control is disabled, because it does not hurt anything to
* initialize these registers.
*/
DEBUGOUT("Initializing Flow Control address, type and timer regs\n");
E1000_WRITE_REG(hw, E1000_FCAL, FLOW_CONTROL_ADDRESS_LOW);
E1000_WRITE_REG(hw, E1000_FCAH, FLOW_CONTROL_ADDRESS_HIGH);
E1000_WRITE_REG(hw, E1000_FCT, FLOW_CONTROL_TYPE);
E1000_WRITE_REG(hw, E1000_FCTTV, hw->fc.pause_time);
ret_val = e1000_set_fc_watermarks_generic(hw);
out:
return ret_val;
}
