From 8aa23f0d8601b5bc84c8fc07b9cc45079984ef3d Mon Sep 17 00:00:00 2001 From: Carolyn Wyborny Date: Fri, 8 Jun 2012 05:01:39 +0000 Subject: [PATCH] igb: Add loopback test support for i210 Early release of i210 devices had the loopback test of the ethtool self-test disabled. This patch enables the loopback test for i210 devices. Signed-off-by: Carolyn Wyborny Tested-by: Jeff Pieper Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/igb/igb_ethtool.c | 51 +++++++++------------------- 1 file changed, 16 insertions(+), 35 deletions(-) diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c index be02168f1308..c4def55567f5 100644 --- a/drivers/net/ethernet/intel/igb/igb_ethtool.c +++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c @@ -1511,33 +1511,22 @@ static int igb_integrated_phy_loopback(struct igb_adapter *adapter) { struct e1000_hw *hw = &adapter->hw; u32 ctrl_reg = 0; - u16 phy_reg = 0; hw->mac.autoneg = false; - switch (hw->phy.type) { - case e1000_phy_m88: - /* Auto-MDI/MDIX Off */ - igb_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, 0x0808); - /* reset to update Auto-MDI/MDIX */ - igb_write_phy_reg(hw, PHY_CONTROL, 0x9140); - /* autoneg off */ - igb_write_phy_reg(hw, PHY_CONTROL, 0x8140); - break; - case e1000_phy_82580: - /* enable MII loopback */ - igb_write_phy_reg(hw, I82580_PHY_LBK_CTRL, 0x8041); - break; - case e1000_phy_i210: - /* set loopback speed in PHY */ - igb_read_phy_reg(hw, (GS40G_PAGE_SELECT & GS40G_PAGE_2), - &phy_reg); - phy_reg |= GS40G_MAC_SPEED_1G; - igb_write_phy_reg(hw, (GS40G_PAGE_SELECT & GS40G_PAGE_2), - phy_reg); - ctrl_reg = rd32(E1000_CTRL_EXT); - default: - break; + if (hw->phy.type == e1000_phy_m88) { + if (hw->phy.id != I210_I_PHY_ID) { + /* Auto-MDI/MDIX Off */ + igb_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, 0x0808); + /* reset to update Auto-MDI/MDIX */ + igb_write_phy_reg(hw, PHY_CONTROL, 0x9140); + /* autoneg off */ + igb_write_phy_reg(hw, PHY_CONTROL, 0x8140); + } else { + /* force 1000, set loopback */ + igb_write_phy_reg(hw, I347AT4_PAGE_SELECT, 0); + igb_write_phy_reg(hw, PHY_CONTROL, 0x4140); + } } /* add small delay to avoid loopback test failure */ @@ -1555,7 +1544,7 @@ static int igb_integrated_phy_loopback(struct igb_adapter *adapter) E1000_CTRL_FD | /* Force Duplex to FULL */ E1000_CTRL_SLU); /* Set link up enable bit */ - if ((hw->phy.type == e1000_phy_m88) || (hw->phy.type == e1000_phy_i210)) + if (hw->phy.type == e1000_phy_m88) ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */ wr32(E1000_CTRL, ctrl_reg); @@ -1563,11 +1552,10 @@ static int igb_integrated_phy_loopback(struct igb_adapter *adapter) /* Disable the receiver on the PHY so when a cable is plugged in, the * PHY does not begin to autoneg when a cable is reconnected to the NIC. */ - if ((hw->phy.type == e1000_phy_m88) || (hw->phy.type == e1000_phy_i210)) + if (hw->phy.type == e1000_phy_m88) igb_phy_disable_receiver(adapter); - udelay(500); - + mdelay(500); return 0; } @@ -1827,13 +1815,6 @@ static int igb_loopback_test(struct igb_adapter *adapter, u64 *data) *data = 0; goto out; } - if ((adapter->hw.mac.type == e1000_i210) - || (adapter->hw.mac.type == e1000_i211)) { - dev_err(&adapter->pdev->dev, - "Loopback test not supported on this part at this time.\n"); - *data = 0; - goto out; - } *data = igb_setup_desc_rings(adapter); if (*data) goto out; -- 2.11.0