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path: root/drivers/net/e1000e/82571.c
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Diffstat (limited to 'drivers/net/e1000e/82571.c')
-rw-r--r--drivers/net/e1000e/82571.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/e1000e/82571.c b/drivers/net/e1000e/82571.c
index 7236f1a53ba..235856375ff 100644
--- a/drivers/net/e1000e/82571.c
+++ b/drivers/net/e1000e/82571.c
@@ -1431,8 +1431,10 @@ static s32 e1000_check_for_serdes_link_82571(struct e1000_hw *hw)
* auto-negotiation in the TXCW register and disable
* forced link in the Device Control register in an
* attempt to auto-negotiate with our link partner.
+ * If the partner code word is null, stop forcing
+ * and restart auto negotiation.
*/
- if (rxcw & E1000_RXCW_C) {
+ if ((rxcw & E1000_RXCW_C) || !(rxcw & E1000_RXCW_CW)) {
/* Enable autoneg, and unforce link up */
ew32(TXCW, mac->txcw);
ew32(CTRL, (ctrl & ~E1000_CTRL_SLU));