static int e1000_setup_loopback_test(struct e1000_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
u32 rctl;
if (hw->phy.media_type == e1000_media_type_fiber ||
hw->phy.media_type == e1000_media_type_internal_serdes) {
switch (hw->mac.type) {
case e1000_80003es2lan:
return e1000_set_es2lan_mac_loopback(adapter);
break;
case e1000_82571:
case e1000_82572:
return e1000_set_82571_fiber_loopback(adapter);
break;
default:
rctl = er32(RCTL);
rctl |= E1000_RCTL_LBM_TCVR;
ew32(RCTL, rctl);
return 0;
}
} else if (hw->phy.media_type == e1000_media_type_copper) {
return e1000_integrated_phy_loopback(adapter);
}
return 7;
}
static int
e1000_set_phy_loopback(struct e1000_adapter *adapter)
{
uint16_t phy_reg = 0;
uint16_t count = 0;
switch (adapter->hw.mac_type) {
case e1000_82543:
if(adapter->hw.media_type == e1000_media_type_copper) {
/* Attempt to setup Loopback mode on Non-integrated PHY.
* Some PHY registers get corrupted at random, so
* attempt this 10 times.
*/
while(e1000_nonintegrated_phy_loopback(adapter) &&
count++ < 10);
if(count < 11)
return 0;
}
break;
case e1000_82544:
case e1000_82540:
case e1000_82545:
case e1000_82545_rev_3:
case e1000_82546:
case e1000_82546_rev_3:
case e1000_82541:
case e1000_82541_rev_2:
case e1000_82547:
case e1000_82547_rev_2:
return e1000_integrated_phy_loopback(adapter);
break;
default:
/* Default PHY loopback work is to read the MII
* control register and assert bit 14 (loopback mode).
*/
e1000_read_phy_reg(&adapter->hw, PHY_CTRL, &phy_reg);
phy_reg |= MII_CR_LOOPBACK;
e1000_write_phy_reg(&adapter->hw, PHY_CTRL, phy_reg);
return 0;
break;
}
return 8;
}