/**
* e1000_setup_init_funcs - Initializes function pointers
* @hw: pointer to the HW structure
* @init_device: true will initialize the rest of the function pointers
* getting the device ready for use. false will only set
* MAC type and the function pointers for the other init
* functions. Passing false will not generate any hardware
* reads or writes.
*
* This function must be called by a driver in order to use the rest
* of the 'shared' code files. Called by drivers only.
**/
s32 e1000_setup_init_funcs(struct e1000_hw *hw, bool init_device)
{
s32 ret_val;
/* Can't do much good without knowing the MAC type. */
ret_val = e1000_set_mac_type(hw);
if (ret_val) {
DEBUGOUT("ERROR: MAC type could not be set properly.\n");
goto out;
}
if (!hw->hw_addr) {
DEBUGOUT("ERROR: Registers not mapped\n");
ret_val = -E1000_ERR_CONFIG;
goto out;
}
/*
* Init function pointers to generic implementations. We do this first
* allowing a driver module to override it afterward.
*/
e1000_init_mac_ops_generic(hw);
e1000_init_nvm_ops_generic(hw);
e1000_init_mbx_ops_generic(hw);
/*
* Set up the init function pointers. These are functions within the
* adapter family file that sets up function pointers for the rest of
* the functions in that family.
*/
switch (hw->mac.type) {
case e1000_82575:
case e1000_82576:
case e1000_82580:
case e1000_i350:
case e1000_i354:
e1000_init_function_pointers_82575(hw);
break;
case e1000_i210:
case e1000_i211:
e1000_init_function_pointers_i210(hw);
break;
default:
DEBUGOUT("Hardware not supported\n");
ret_val = -E1000_ERR_CONFIG;
break;
}
/*
* Initialize the rest of the function pointers. These require some
* register reads/writes in some cases.
*/
if (!(ret_val) && init_device) {
ret_val = e1000_init_mac_params(hw);
if (ret_val)
goto out;
ret_val = e1000_init_nvm_params(hw);
if (ret_val)
goto out;
ret_val = e1000_init_phy_params(hw);
if (ret_val)
goto out;
ret_val = e1000_init_mbx_params(hw);
if (ret_val)
goto out;
}
out:
return ret_val;
}
/**
* e1000_probe - Initial configuration of e1000 NIC
*
* @v pci PCI device
* @v id PCI IDs
*
* @ret rc Return status code
**/
int e1000_probe ( struct pci_device *pdev )
{
int i, err;
struct net_device *netdev;
struct e1000_adapter *adapter;
unsigned long mmio_start, mmio_len;
DBG ( "e1000_probe\n" );
err = -ENOMEM;
/* Allocate net device ( also allocates memory for netdev->priv
and makes netdev-priv point to it ) */
netdev = alloc_etherdev ( sizeof ( struct e1000_adapter ) );
if ( ! netdev )
goto err_alloc_etherdev;
/* Associate e1000-specific network operations operations with
* generic network device layer */
netdev_init ( netdev, &e1000_operations );
/* Associate this network device with given PCI device */
pci_set_drvdata ( pdev, netdev );
netdev->dev = &pdev->dev;
/* Initialize driver private storage */
adapter = netdev_priv ( netdev );
memset ( adapter, 0, ( sizeof ( *adapter ) ) );
adapter->pdev = pdev;
adapter->ioaddr = pdev->ioaddr;
adapter->hw.io_base = pdev->ioaddr;
adapter->irqno = pdev->irq;
adapter->netdev = netdev;
adapter->hw.back = adapter;
adapter->tx_ring_size = sizeof ( *adapter->tx_base ) * NUM_TX_DESC;
adapter->rx_ring_size = sizeof ( *adapter->rx_base ) * NUM_RX_DESC;
mmio_start = pci_bar_start ( pdev, PCI_BASE_ADDRESS_0 );
mmio_len = pci_bar_size ( pdev, PCI_BASE_ADDRESS_0 );
DBG ( "mmio_start: %#08lx\n", mmio_start );
DBG ( "mmio_len: %#08lx\n", mmio_len );
/* Fix up PCI device */
adjust_pci_device ( pdev );
err = -EIO;
adapter->hw.hw_addr = ioremap ( mmio_start, mmio_len );
DBG ( "adapter->hw.hw_addr: %p\n", adapter->hw.hw_addr );
if ( ! adapter->hw.hw_addr )
goto err_ioremap;
/* Hardware features, flags and workarounds */
if (adapter->hw.mac.type >= e1000_82540) {
adapter->flags |= E1000_FLAG_HAS_SMBUS;
adapter->flags |= E1000_FLAG_HAS_INTR_MODERATION;
}
if (adapter->hw.mac.type == e1000_82543)
adapter->flags |= E1000_FLAG_BAD_TX_CARRIER_STATS_FD;
adapter->hw.phy.autoneg_wait_to_complete = true;
adapter->hw.mac.adaptive_ifs = true;
/* setup the private structure */
if ( ( err = e1000_sw_init ( adapter ) ) )
goto err_sw_init;
if ((err = e1000_init_mac_params(&adapter->hw)))
goto err_hw_init;
if ((err = e1000_init_nvm_params(&adapter->hw)))
goto err_hw_init;
/* Force auto-negotiated speed and duplex */
adapter->hw.mac.autoneg = 1;
if ((err = e1000_init_phy_params(&adapter->hw)))
goto err_hw_init;
DBG ( "adapter->hw.mac.type: %#08x\n", adapter->hw.mac.type );
/* before reading the EEPROM, reset the controller to
* put the device in a known good starting state
*/
err = e1000_reset_hw ( &adapter->hw );
if ( err < 0 ) {
DBG ( "Hardware Initialization Failed\n" );
goto err_reset;
}
/* make sure the NVM is good */
if ( e1000_validate_nvm_checksum(&adapter->hw) < 0 ) {
DBG ( "The NVM Checksum Is Not Valid\n" );
err = -EIO;
goto err_eeprom;
}
/* copy the MAC address out of the EEPROM */
if ( e1000_read_mac_addr ( &adapter->hw ) )
DBG ( "EEPROM Read Error\n" );
memcpy ( netdev->hw_addr, adapter->hw.mac.perm_addr, ETH_ALEN );
/* reset the hardware with the new settings */
e1000_reset ( adapter );
if ( ( err = register_netdev ( netdev ) ) != 0)
goto err_register;
/* Mark as link up; we don't yet handle link state */
netdev_link_up ( netdev );
for (i = 0; i < 6; i++)
DBG ("%02x%s", netdev->ll_addr[i], i == 5 ? "\n" : ":");
DBG ( "e1000_probe succeeded!\n" );
/* No errors, return success */
return 0;
/* Error return paths */
err_reset:
err_register:
err_hw_init:
err_eeprom:
if (!e1000_check_reset_block(&adapter->hw))
e1000_phy_hw_reset(&adapter->hw);
if (adapter->hw.flash_address)
iounmap(adapter->hw.flash_address);
err_sw_init:
iounmap ( adapter->hw.hw_addr );
err_ioremap:
netdev_put ( netdev );
err_alloc_etherdev:
return err;
}