diff options
Diffstat (limited to 'drivers/net/e1000.c')
| -rw-r--r-- | drivers/net/e1000.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/e1000.c b/drivers/net/e1000.c index 2d4da4b38..8ba98b27d 100644 --- a/drivers/net/e1000.c +++ b/drivers/net/e1000.c @@ -1688,6 +1688,16 @@ e1000_init_hw(struct eth_device *nic) E1000_WRITE_REG(hw, TXDCTL, ctrl); } + /* Set the receive descriptor write back policy */ + + if (hw->mac_type >= e1000_82571) { + ctrl = E1000_READ_REG(hw, RXDCTL); + ctrl = + (ctrl & ~E1000_RXDCTL_WTHRESH) | + E1000_RXDCTL_FULL_RX_DESC_WB; + E1000_WRITE_REG(hw, RXDCTL, ctrl); + } + switch (hw->mac_type) { default: break; |