In some cases the link on the system interface of the aquantia PHY comes up after the link on line interface. The link state loop only checks the line side, which may result in first packet sent being lost. Use aquantia_link_is_up instead, which checks both system and line side on gen 2/3 PHYs to avoid losing the 1st packet.
Signed-off-by: Alex Marginean alexandru.marginean@nxp.com --- drivers/net/phy/aquantia.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/drivers/net/phy/aquantia.c b/drivers/net/phy/aquantia.c index 151e0ee9e9..7817d3cb8d 100644 --- a/drivers/net/phy/aquantia.c +++ b/drivers/net/phy/aquantia.c @@ -540,17 +540,14 @@ int aquantia_startup(struct phy_device *phydev) phydev->duplex = DUPLEX_FULL;
/* if the AN is still in progress, wait till timeout. */ - phy_read(phydev, MDIO_MMD_AN, MDIO_STAT1); - reg = phy_read(phydev, MDIO_MMD_AN, MDIO_STAT1); - if (!(reg & MDIO_AN_STAT1_COMPLETE)) { + if (!aquantia_link_is_up(phydev)) { printf("%s Waiting for PHY auto negotiation to complete", phydev->dev->name); do { udelay(1000); - reg = phy_read(phydev, MDIO_MMD_AN, MDIO_STAT1); if ((i++ % 500) == 0) printf("."); - } while (!(reg & MDIO_AN_STAT1_COMPLETE) && + } while (!aquantia_link_is_up(phydev) && i < (4 * PHY_ANEG_TIMEOUT));
if (i > PHY_ANEG_TIMEOUT)