static int e1000_set_settings(struct net_device *netdev,
struct ethtool_cmd *ecmd)
{
struct e1000_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
/*
* When SoL/IDER sessions are active, autoneg/speed/duplex
* cannot be changed
*/
if (e1000_check_reset_block(hw)) {
e_err("Cannot change link characteristics when SoL/IDER is "
"active.\n");
return -EINVAL;
}
while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
msleep(1);
if (ecmd->autoneg == AUTONEG_ENABLE) {
hw->mac.autoneg = 1;
if (hw->phy.media_type == e1000_media_type_fiber)
hw->phy.autoneg_advertised = ADVERTISED_1000baseT_Full |
ADVERTISED_FIBRE |
ADVERTISED_Autoneg;
else
hw->phy.autoneg_advertised = ecmd->advertising |
ADVERTISED_TP |
ADVERTISED_Autoneg;
ecmd->advertising = hw->phy.autoneg_advertised;
if (adapter->fc_autoneg)
hw->fc.requested_mode = e1000_fc_default;
} else {
if (e1000_set_spd_dplx(adapter, ecmd->speed + ecmd->duplex)) {
clear_bit(__E1000_RESETTING, &adapter->state);
return -EINVAL;
}
}
/* reset the link */
if (netif_running(adapter->netdev)) {
e1000e_down(adapter);
e1000e_up(adapter);
} else {
e1000e_reset(adapter);
}
clear_bit(__E1000_RESETTING, &adapter->state);
return 0;
}
static int e1000_set_rx_csum(struct net_device *netdev, u32 data)
{
struct e1000_adapter *adapter = netdev_priv(netdev);
if (data)
adapter->flags |= FLAG_RX_CSUM_ENABLED;
else
adapter->flags &= ~FLAG_RX_CSUM_ENABLED;
if (netif_running(netdev))
e1000e_reinit_locked(adapter);
else
e1000e_reset(adapter);
return 0;
}
static int e1000_set_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *pause)
{
struct e1000_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
int retval = 0;
adapter->fc_autoneg = pause->autoneg;
while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
usleep_range(1000, 2000);
if (adapter->fc_autoneg == AUTONEG_ENABLE) {
hw->fc.requested_mode = e1000_fc_default;
if (netif_running(adapter->netdev)) {
e1000e_down(adapter);
e1000e_up(adapter);
} else {
e1000e_reset(adapter);
}
} else {
if (pause->rx_pause && pause->tx_pause)
hw->fc.requested_mode = e1000_fc_full;
else if (pause->rx_pause && !pause->tx_pause)
hw->fc.requested_mode = e1000_fc_rx_pause;
else if (!pause->rx_pause && pause->tx_pause)
hw->fc.requested_mode = e1000_fc_tx_pause;
else if (!pause->rx_pause && !pause->tx_pause)
hw->fc.requested_mode = e1000_fc_none;
hw->fc.current_mode = hw->fc.requested_mode;
if (hw->phy.media_type == e1000_media_type_fiber) {
retval = hw->mac.ops.setup_link(hw);
/* implicit goto out */
} else {
retval = e1000e_force_mac_fc(hw);
if (retval)
goto out;
e1000e_set_fc_watermarks(hw);
}
}
out:
clear_bit(__E1000_RESETTING, &adapter->state);
return retval;
}
/**
* e1000e_remove - Device Removal Routine
*
* @v pdev PCI device information struct
*
**/
void e1000e_remove ( struct pci_device *pdev )
{
struct net_device *netdev = pci_get_drvdata ( pdev );
struct e1000_adapter *adapter = netdev_priv ( netdev );
DBGP ( "e1000e_remove\n" );
if ( adapter->hw.flash_address )
iounmap ( adapter->hw.flash_address );
if ( adapter->hw.hw_addr )
iounmap ( adapter->hw.hw_addr );
unregister_netdev ( netdev );
e1000e_reset ( adapter );
netdev_nullify ( netdev );
netdev_put ( netdev );
}
/**
* e1000e_open - Called when a network interface is made active
*
* @v netdev network interface device structure
* @ret rc Return status code, 0 on success, negative value on failure
*
**/
static int e1000e_open ( struct net_device *netdev )
{
struct e1000_adapter *adapter = netdev_priv(netdev);
int err;
DBGP ( "e1000e_open\n" );
/* allocate transmit descriptors */
err = e1000e_setup_tx_resources ( adapter );
if ( err ) {
DBG ( "Error setting up TX resources!\n" );
goto err_setup_tx;
}
/* allocate receive descriptors */
err = e1000e_setup_rx_resources ( adapter );
if ( err ) {
DBG ( "Error setting up RX resources!\n" );
goto err_setup_rx;
}
e1000e_configure_tx ( adapter );
e1000e_configure_rx ( adapter );
DBG ( "E1000_RXDCTL(0): %#08x\n", E1000_READ_REG ( &adapter->hw, E1000_RXDCTL(0) ) );
return 0;
err_setup_rx:
DBG ( "err_setup_rx\n" );
e1000e_free_tx_resources ( adapter );
err_setup_tx:
DBG ( "err_setup_tx\n" );
e1000e_reset ( adapter );
return err;
}
/**
* e1000_close - Disables a network interface
*
* @v netdev network interface device structure
*
**/
static void e1000e_close ( struct net_device *netdev )
{
struct e1000_adapter *adapter = netdev_priv ( netdev );
struct e1000_hw *hw = &adapter->hw;
uint32_t rctl;
uint32_t icr;
DBGP ( "e1000_close\n" );
/* Acknowledge interrupts */
icr = E1000_READ_REG ( hw, E1000_ICR );
e1000e_irq_disable ( adapter );
/* disable receives */
rctl = E1000_READ_REG ( hw, E1000_RCTL );
E1000_WRITE_REG ( hw, E1000_RCTL, rctl & ~E1000_RCTL_EN );
e1e_flush();
e1000e_reset ( adapter );
e1000e_free_tx_resources ( adapter );
e1000e_free_rx_resources ( adapter );
}
static int e1000_set_settings(struct net_device *netdev,
struct ethtool_cmd *ecmd)
{
struct e1000_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
/*
* When SoL/IDER sessions are active, autoneg/speed/duplex
* cannot be changed
*/
if (hw->phy.ops.check_reset_block &&
hw->phy.ops.check_reset_block(hw)) {
e_err("Cannot change link characteristics when SoL/IDER is active.\n");
return -EINVAL;
}
/*
* MDI setting is only allowed when autoneg enabled because
* some hardware doesn't allow MDI setting when speed or
* duplex is forced.
*/
if (ecmd->eth_tp_mdix_ctrl) {
if (hw->phy.media_type != e1000_media_type_copper)
return -EOPNOTSUPP;
if ((ecmd->eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO) &&
(ecmd->autoneg != AUTONEG_ENABLE)) {
e_err("forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
return -EINVAL;
}
}
while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
usleep_range(1000, 2000);
if (ecmd->autoneg == AUTONEG_ENABLE) {
hw->mac.autoneg = 1;
if (hw->phy.media_type == e1000_media_type_fiber)
hw->phy.autoneg_advertised = ADVERTISED_1000baseT_Full |
ADVERTISED_FIBRE |
ADVERTISED_Autoneg;
else
hw->phy.autoneg_advertised = ecmd->advertising |
ADVERTISED_TP |
ADVERTISED_Autoneg;
ecmd->advertising = hw->phy.autoneg_advertised;
if (adapter->fc_autoneg)
hw->fc.requested_mode = e1000_fc_default;
} else {
u32 speed = ethtool_cmd_speed(ecmd);
/* calling this overrides forced MDI setting */
if (e1000_set_spd_dplx(adapter, speed, ecmd->duplex)) {
clear_bit(__E1000_RESETTING, &adapter->state);
return -EINVAL;
}
}
/* MDI-X => 2; MDI => 1; Auto => 3 */
if (ecmd->eth_tp_mdix_ctrl) {
/*
* fix up the value for auto (3 => 0) as zero is mapped
* internally to auto
*/
if (ecmd->eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
hw->phy.mdix = AUTO_ALL_MODES;
else
hw->phy.mdix = ecmd->eth_tp_mdix_ctrl;
}
/* reset the link */
if (netif_running(adapter->netdev)) {
e1000e_down(adapter);
e1000e_up(adapter);
} else
e1000e_reset(adapter);
clear_bit(__E1000_RESETTING, &adapter->state);
return 0;
}
/**
* e1000_probe - Initial configuration of e1000 NIC
*
* @v pci PCI device
* @v id PCI IDs
*
* @ret rc Return status code
**/
int e1000e_probe ( struct pci_device *pdev,
const struct pci_device_id *ent)
{
int i, err;
struct net_device *netdev;
struct e1000_adapter *adapter;
unsigned long mmio_start, mmio_len;
unsigned long flash_start, flash_len;
struct e1000_hw *hw;
const struct e1000_info *ei = e1000_info_tbl[ent->driver_data];
DBGP ( "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 ) {
DBG ( "err_alloc_etherdev\n" );
goto err_alloc_etherdev;
}
/* Associate e1000-specific network operations operations with
* generic network device layer */
netdev_init ( netdev, &e1000e_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;
hw = &adapter->hw;
hw->device_id = pdev->device;
adapter->irqno = pdev->irq;
adapter->netdev = netdev;
adapter->hw.back = adapter;
adapter->ei = ei;
adapter->pba = ei->pba;
adapter->flags = ei->flags;
adapter->flags2 = ei->flags2;
adapter->hw.adapter = adapter;
adapter->hw.mac.type = ei->mac;
adapter->max_hw_frame_size = ETH_FRAME_LEN + ETH_FCS_LEN;
adapter->tx_ring_size = sizeof ( *adapter->tx_base ) * NUM_TX_DESC;
adapter->rx_ring_size = sizeof ( *adapter->rx_base ) * NUM_RX_DESC;
/* Fix up PCI device */
adjust_pci_device ( pdev );
err = -EIO;
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 );
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 ) {
DBG ( "err_ioremap\n" );
goto err_ioremap;
}
/* Flash BAR mapping depends on mac_type */
if ( ( adapter->flags & FLAG_HAS_FLASH) && ( pdev->ioaddr ) ) {
flash_start = pci_bar_start ( pdev, PCI_BASE_ADDRESS_1 );
flash_len = pci_bar_size ( pdev, PCI_BASE_ADDRESS_1 );
adapter->hw.flash_address = ioremap ( flash_start, flash_len );
if ( ! adapter->hw.flash_address ) {
DBG ( "err_flashmap\n" );
goto err_flashmap;
}
}
/* setup adapter struct */
err = e1000e_sw_init ( adapter );
if (err) {
DBG ( "err_sw_init\n" );
goto err_sw_init;
}
if (ei->get_variants) {
err = ei->get_variants(adapter);
if (err) {
DBG ( "err_hw_initr\n" );
goto err_hw_init;
}
}
/* Copper options */
if (adapter->hw.phy.media_type == e1000_media_type_copper) {
adapter->hw.phy.mdix = AUTO_ALL_MODES;
adapter->hw.phy.disable_polarity_correction = 0;
adapter->hw.phy.ms_type = e1000_ms_hw_default;
}
DBG ( "adapter->hw.mac.type: %#08x\n", adapter->hw.mac.type );
/* Force auto-negotiation */
adapter->hw.mac.autoneg = 1;
adapter->fc_autoneg = 1;
adapter->hw.phy.autoneg_wait_to_complete = true;
adapter->hw.mac.adaptive_ifs = true;
adapter->hw.fc.requested_mode = e1000_fc_default;
adapter->hw.fc.current_mode = e1000_fc_default;
/*
* before reading the NVM, reset the controller to
* put the device in a known good starting state
*/
adapter->hw.mac.ops.reset_hw(&adapter->hw);
/*
* systems with ASPM and others may see the checksum fail on the first
* attempt. Let's give it a few tries
*/
for (i = 0;; i++) {
if (e1000e_validate_nvm_checksum(&adapter->hw) >= 0)
break;
if (i == 2) {
DBG("The NVM Checksum Is Not Valid\n");
err = -EIO;
goto err_eeprom;
}
}
/* copy the MAC address out of the EEPROM */
if ( e1000e_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 */
e1000e_reset ( adapter );
/* Mark as link up; we don't yet handle link state */
netdev_link_up ( netdev );
if ( ( err = register_netdev ( netdev ) ) != 0) {
DBG ( "err_register\n" );
goto err_register;
}
for (i = 0; i < 6; i++)
DBG ("%02x%s", netdev->ll_addr[i], i == 5 ? "\n" : ":");
DBG ( "e1000e_probe succeeded!\n" );
/* No errors, return success */
return 0;
/* Error return paths */
err_register:
err_hw_init:
err_eeprom:
err_flashmap:
if (!e1000e_check_reset_block(&adapter->hw))
e1000e_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;
}
