diff options
Diffstat (limited to 'drivers/net/ethernet/intel')
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb.h | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb_ethtool.c | 14 |
2 files changed, 16 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h index c15a4811b476..17f1686ee411 100644 --- a/drivers/net/ethernet/intel/igb/igb.h +++ b/drivers/net/ethernet/intel/igb/igb.h @@ -42,6 +42,8 @@ struct igb_adapter; +#define E1000_PCS_CFG_IGN_SD 1 + /* Interrupt defines */ #define IGB_START_ITR 648 /* ~6000 ints/sec */ #define IGB_4K_ITR 980 diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c index e2288b5a9caa..bfe9208c4b18 100644 --- a/drivers/net/ethernet/intel/igb/igb_ethtool.c +++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c @@ -1624,6 +1624,20 @@ static int igb_setup_loopback_test(struct igb_adapter *adapter) reg &= ~E1000_CONNSW_ENRGSRC; wr32(E1000_CONNSW, reg); + /* Unset sigdetect for SERDES loopback on + * 82580 and i350 devices. + */ + switch (hw->mac.type) { + case e1000_82580: + case e1000_i350: + reg = rd32(E1000_PCS_CFG0); + reg |= E1000_PCS_CFG_IGN_SD; + wr32(E1000_PCS_CFG0, reg); + break; + default: + break; + } + /* Set PCS register for forced speed */ reg = rd32(E1000_PCS_LCTL); reg &= ~E1000_PCS_LCTL_AN_ENABLE; /* Disable Autoneg*/ |