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    Subject[PATCH 1/3] net: ethoc: don't advertise gigabit speed on attached PHY
    Date
    OpenCores 10/100 Mbps MAC does not support speeds above 100 Mbps, but does
    not disable advertisement when PHY supports them. This results in
    non-functioning network when the MAC is connected to a gigabit PHY connected
    to a gigabit switch.

    The fix is to disable gigabit speed advertisement on attached PHY
    unconditionally.

    Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
    ---
    drivers/net/ethernet/ethoc.c | 2 ++
    1 file changed, 2 insertions(+)

    diff --git a/drivers/net/ethernet/ethoc.c b/drivers/net/ethernet/ethoc.c
    index 4de8cfd..0aa1a05 100644
    --- a/drivers/net/ethernet/ethoc.c
    +++ b/drivers/net/ethernet/ethoc.c
    @@ -712,6 +712,8 @@ static int ethoc_open(struct net_device *dev)
    netif_start_queue(dev);
    }

    + priv->phy->advertising &= ~(ADVERTISED_1000baseT_Full |
    + ADVERTISED_1000baseT_Half);
    phy_start(priv->phy);
    napi_enable(&priv->napi);

    --
    1.8.1.4


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