From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Kirsher Subject: [net-next 12/14] igb: Enable auto-crossover during forced operation on 82580 and above. Date: Fri, 26 Oct 2012 04:58:20 -0700 Message-ID: <1351252702-16532-13-git-send-email-jeffrey.t.kirsher@intel.com> References: <1351252702-16532-1-git-send-email-jeffrey.t.kirsher@intel.com> Cc: Matthew Vick , netdev@vger.kernel.org, gospo@redhat.com, sassmann@redhat.com, Jeff Kirsher To: davem@davemloft.net Return-path: Received: from mga01.intel.com ([192.55.52.88]:16247 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932503Ab2JZL63 (ORCPT ); Fri, 26 Oct 2012 07:58:29 -0400 In-Reply-To: <1351252702-16532-1-git-send-email-jeffrey.t.kirsher@intel.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Matthew Vick Newer devices supported by igb can support auto-crossover detection in forced operation modes. Enable this in the driver, rather than clobbering this functionality in forced operation. Signed-off-by: Matthew Vick Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/igb/e1000_mac.c | 4 ++++ drivers/net/ethernet/intel/igb/e1000_phy.c | 29 +++++++++++++++++------------ 2 files changed, 21 insertions(+), 12 deletions(-) diff --git a/drivers/net/ethernet/intel/igb/e1000_mac.c b/drivers/net/ethernet/intel/igb/e1000_mac.c index 819c145..7acddfe 100644 --- a/drivers/net/ethernet/intel/igb/e1000_mac.c +++ b/drivers/net/ethernet/intel/igb/e1000_mac.c @@ -1391,6 +1391,10 @@ s32 igb_validate_mdi_setting(struct e1000_hw *hw) { s32 ret_val = 0; + /* All MDI settings are supported on 82580 and newer. */ + if (hw->mac.type >= e1000_82580) + goto out; + if (!hw->mac.autoneg && (hw->phy.mdix == 0 || hw->phy.mdix == 3)) { hw_dbg("Invalid MDI setting detected\n"); hw->phy.mdix = 1; diff --git a/drivers/net/ethernet/intel/igb/e1000_phy.c b/drivers/net/ethernet/intel/igb/e1000_phy.c index c62a4c3..fe76004 100644 --- a/drivers/net/ethernet/intel/igb/e1000_phy.c +++ b/drivers/net/ethernet/intel/igb/e1000_phy.c @@ -1207,20 +1207,25 @@ s32 igb_phy_force_speed_duplex_m88(struct e1000_hw *hw) u16 phy_data; bool link; - /* - * Clear Auto-Crossover to force MDI manually. M88E1000 requires MDI - * forced whenever speed and duplex are forced. - */ - ret_val = phy->ops.read_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); - if (ret_val) - goto out; + /* I210 and I211 devices support Auto-Crossover in forced operation. */ + if (phy->type != e1000_phy_i210) { + /* + * Clear Auto-Crossover to force MDI manually. M88E1000 + * requires MDI forced whenever speed and duplex are forced. + */ + ret_val = phy->ops.read_reg(hw, M88E1000_PHY_SPEC_CTRL, + &phy_data); + if (ret_val) + goto out; - phy_data &= ~M88E1000_PSCR_AUTO_X_MODE; - ret_val = phy->ops.write_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); - if (ret_val) - goto out; + phy_data &= ~M88E1000_PSCR_AUTO_X_MODE; + ret_val = phy->ops.write_reg(hw, M88E1000_PHY_SPEC_CTRL, + phy_data); + if (ret_val) + goto out; - hw_dbg("M88E1000 PSCR: %X\n", phy_data); + hw_dbg("M88E1000 PSCR: %X\n", phy_data); + } ret_val = phy->ops.read_reg(hw, PHY_CONTROL, &phy_data); if (ret_val) -- 1.7.11.7