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e1000: Fix network problems when forced at 100Mb/s and to fix TSO when forced at 100Mb/s

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Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
This commit is contained in:
Jeff Kirsher
2006-03-02 18:19:30 -08:00
committed by root
parent 8491682986
commit 7e6c9861bb
4 changed files with 66 additions and 11 deletions
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67
drivers/net/e1000/e1000_main.c
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@@ -1405,10 +1405,13 @@ e1000_configure_tx(struct e1000_adapter *adapter)
tctl = E1000_READ_REG(hw, TCTL);
tctl &= ~E1000_TCTL_CT;
tctl |= E1000_TCTL_EN | E1000_TCTL_PSP | E1000_TCTL_RTLC |
tctl |= E1000_TCTL_PSP | E1000_TCTL_RTLC |
(E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT);
E1000_WRITE_REG(hw, TCTL, tctl);
#ifdef DISABLE_MULR
/* disable Multiple Reads for debugging */
tctl &= ~E1000_TCTL_MULR;
#endif
if (hw->mac_type == e1000_82571 || hw->mac_type == e1000_82572) {
tarc = E1000_READ_REG(hw, TARC0);
@@ -1439,6 +1442,9 @@ e1000_configure_tx(struct e1000_adapter *adapter)
if (hw->mac_type == e1000_82544 &&
hw->bus_type == e1000_bus_type_pcix)
adapter->pcix_82544 = 1;
E1000_WRITE_REG(hw, TCTL, tctl);
}
/**
@@ -2243,7 +2249,7 @@ e1000_watchdog_task(struct e1000_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
struct e1000_tx_ring *txdr = adapter->tx_ring;
uint32_t link;
uint32_t link, tctl;
e1000_check_for_link(&adapter->hw);
if (adapter->hw.mac_type == e1000_82573) {
@@ -2269,20 +2275,61 @@ e1000_watchdog_task(struct e1000_adapter *adapter)
adapter->link_duplex == FULL_DUPLEX ?
"Full Duplex" : "Half Duplex");
/* tweak tx_queue_len according to speed/duplex */
/* tweak tx_queue_len according to speed/duplex
* and adjust the timeout factor */
netdev->tx_queue_len = adapter->tx_queue_len;
adapter->tx_timeout_factor = 1;
if (adapter->link_duplex == HALF_DUPLEX) {
adapter->txb2b = 1;
switch (adapter->link_speed) {
case SPEED_10:
adapter->txb2b = 0;
netdev->tx_queue_len = 10;
adapter->tx_timeout_factor = 8;
break;
case SPEED_100:
adapter->txb2b = 0;
netdev->tx_queue_len = 100;
/* maybe add some timeout factor ? */
break;
}
if ((adapter->hw.mac_type == e1000_82571 ||
adapter->hw.mac_type == e1000_82572) &&
adapter->txb2b == 0) {
#define SPEED_MODE_BIT (1 << 21)
uint32_t tarc0;
tarc0 = E1000_READ_REG(&adapter->hw, TARC0);
tarc0 &= ~SPEED_MODE_BIT;
E1000_WRITE_REG(&adapter->hw, TARC0, tarc0);
}
#ifdef NETIF_F_TSO
/* disable TSO for pcie and 10/100 speeds, to avoid
* some hardware issues */
if (!adapter->tso_force &&
adapter->hw.bus_type == e1000_bus_type_pci_express){
switch (adapter->link_speed) {
case SPEED_10:
netdev->tx_queue_len = 10;
adapter->tx_timeout_factor = 8;
break;
case SPEED_100:
netdev->tx_queue_len = 100;
DPRINTK(PROBE,INFO,
"10/100 speed: disabling TSO\n");
netdev->features &= ~NETIF_F_TSO;
break;
case SPEED_1000:
netdev->features |= NETIF_F_TSO;
break;
default:
/* oops */
break;
}
}
#endif
/* enable transmits in the hardware, need to do this
* after setting TARC0 */
tctl = E1000_READ_REG(&adapter->hw, TCTL);
tctl |= E1000_TCTL_EN;
E1000_WRITE_REG(&adapter->hw, TCTL, tctl);
netif_carrier_on(netdev);
netif_wake_queue(netdev);
@@ -3319,7 +3366,7 @@ e1000_clean_tx_irq(struct e1000_adapter *adapter,
adapter->detect_tx_hung = FALSE;
if (tx_ring->buffer_info[eop].dma &&
time_after(jiffies, tx_ring->buffer_info[eop].time_stamp +
adapter->tx_timeout_factor * HZ)
(adapter->tx_timeout_factor * HZ))
&& !(E1000_READ_REG(&adapter->hw, STATUS) &
E1000_STATUS_TXOFF)) {