diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/e1000/e1000_main.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index 13bde909053..24d96c02b50 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -409,7 +409,10 @@ e1000_down(struct e1000_adapter *adapter) void e1000_reset(struct e1000_adapter *adapter) { + struct net_device *netdev = adapter->netdev; uint32_t pba, manc; + uint16_t fc_high_water_mark = E1000_FC_HIGH_DIFF; + uint16_t fc_low_water_mark = E1000_FC_LOW_DIFF; /* Repartition Pba for greater than 9k mtu * To take effect CTRL.RST is required. @@ -428,6 +431,16 @@ e1000_reset(struct e1000_adapter *adapter) break; } + if((adapter->hw.mac_type != e1000_82573) && + (adapter->rx_buffer_len > E1000_RXBUFFER_8192)) { + pba -= 8; /* allocate more FIFO for Tx */ + /* send an XOFF when there is enough space in the + * Rx FIFO to hold one extra full size Rx packet + */ + fc_high_water_mark = netdev->mtu + ENET_HEADER_SIZE + + ETHERNET_FCS_SIZE + 1; + fc_low_water_mark = fc_high_water_mark + 8; + } if(adapter->hw.mac_type == e1000_82547) { @@ -442,9 +455,9 @@ e1000_reset(struct e1000_adapter *adapter) /* flow control settings */ adapter->hw.fc_high_water = (pba << E1000_PBA_BYTES_SHIFT) - - E1000_FC_HIGH_DIFF; + fc_high_water_mark; adapter->hw.fc_low_water = (pba << E1000_PBA_BYTES_SHIFT) - - E1000_FC_LOW_DIFF; + fc_low_water_mark; adapter->hw.fc_pause_time = E1000_FC_PAUSE_TIME; adapter->hw.fc_send_xon = 1; adapter->hw.fc = adapter->hw.original_fc; |