From: Wei Yang Date: Wed, 25 Jul 2012 02:13:59 +0000 (+0000) Subject: net/pch_gpe: Cannot disable ethernet autonegation X-Git-Tag: firefly_0821_release~3680^2~2334^2~11 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=6d8d2dd8ad92ec89f540e73b7a46c5835a7a06a6;p=firefly-linux-kernel-4.4.55.git net/pch_gpe: Cannot disable ethernet autonegation When attempting to disable ethernet autonegation via ethtool, the pch_gpe driver will set software reset bit of PHY chip, But control register of PHY chip of FRI2 will reenable ethernet autonegation. Signed-off-by: Wei Yang Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c index 9dbf38c10a68..24b787be6062 100644 --- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c +++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c @@ -129,7 +129,6 @@ static int pch_gbe_set_settings(struct net_device *netdev, hw->mac.link_duplex = ecmd->duplex; hw->phy.autoneg_advertised = ecmd->advertising; hw->mac.autoneg = ecmd->autoneg; - pch_gbe_hal_phy_sw_reset(hw); /* reset the link */ if (netif_running(adapter->netdev)) { diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c index b1006563f736..8e0e5f0fb4fd 100644 --- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c +++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c @@ -1988,6 +1988,7 @@ int pch_gbe_up(struct pch_gbe_adapter *adapter) void pch_gbe_down(struct pch_gbe_adapter *adapter) { struct net_device *netdev = adapter->netdev; + struct pci_dev *pdev = adapter->pdev; struct pch_gbe_rx_ring *rx_ring = adapter->rx_ring; /* signal that we're down so the interrupt handler does not @@ -2004,7 +2005,8 @@ void pch_gbe_down(struct pch_gbe_adapter *adapter) netif_carrier_off(netdev); netif_stop_queue(netdev); - pch_gbe_reset(adapter); + if ((pdev->error_state) && (pdev->error_state != pci_channel_io_normal)) + pch_gbe_reset(adapter); pch_gbe_clean_tx_ring(adapter, adapter->tx_ring); pch_gbe_clean_rx_ring(adapter, adapter->rx_ring);