diff options
| author | Emil Tantilov <emil.s.tantilov@intel.com> | 2013-04-12 02:10:25 +0000 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2013-04-25 19:05:45 -0700 |
| commit | 26b4742beaf18456195eeda1b8f59547f5569ac7 (patch) | |
| tree | a861cc7b22b7319d35b2349eadd44c7f7e42c244 /drivers/net/ethernet/intel/ixgbe | |
| parent | d87d830720a1446403ed38bfc2da268be0d356d1 (diff) | |
ixgbe: fix register access during ethtool loopback test
This patch cleans up the logic in ixgbe_setup_loopback_test() to only access
registers applicable to the MAC type. AUTOC is only valid on MACs older than
X540. MACC is used for X540.
In addition it removes a read of AUTOC and uses the stored value to force the
link up.
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/ixgbe')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c index bbe00bcc758..509d3ae191f 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c @@ -1609,16 +1609,9 @@ static int ixgbe_setup_loopback_test(struct ixgbe_adapter *adapter) struct ixgbe_hw *hw = &adapter->hw; u32 reg_data; - /* X540 needs to set the MACC.FLU bit to force link up */ - if (adapter->hw.mac.type == ixgbe_mac_X540) { - reg_data = IXGBE_READ_REG(hw, IXGBE_MACC); - reg_data |= IXGBE_MACC_FLU; - IXGBE_WRITE_REG(hw, IXGBE_MACC, reg_data); - } - /* right now we only support MAC loopback in the driver */ - reg_data = IXGBE_READ_REG(hw, IXGBE_HLREG0); /* Setup MAC loopback */ + reg_data = IXGBE_READ_REG(hw, IXGBE_HLREG0); reg_data |= IXGBE_HLREG0_LPBK; IXGBE_WRITE_REG(hw, IXGBE_HLREG0, reg_data); @@ -1626,10 +1619,19 @@ static int ixgbe_setup_loopback_test(struct ixgbe_adapter *adapter) reg_data |= IXGBE_FCTRL_BAM | IXGBE_FCTRL_SBP | IXGBE_FCTRL_MPE; IXGBE_WRITE_REG(hw, IXGBE_FCTRL, reg_data); - reg_data = IXGBE_READ_REG(hw, IXGBE_AUTOC); - reg_data &= ~IXGBE_AUTOC_LMS_MASK; - reg_data |= IXGBE_AUTOC_LMS_10G_LINK_NO_AN | IXGBE_AUTOC_FLU; - IXGBE_WRITE_REG(hw, IXGBE_AUTOC, reg_data); + /* X540 needs to set the MACC.FLU bit to force link up */ + if (adapter->hw.mac.type == ixgbe_mac_X540) { + reg_data = IXGBE_READ_REG(hw, IXGBE_MACC); + reg_data |= IXGBE_MACC_FLU; + IXGBE_WRITE_REG(hw, IXGBE_MACC, reg_data); + } else { + if (hw->mac.orig_autoc) { + reg_data = hw->mac.orig_autoc | IXGBE_AUTOC_FLU; + IXGBE_WRITE_REG(hw, IXGBE_AUTOC, reg_data); + } else { + return 10; + } + } IXGBE_WRITE_FLUSH(hw); usleep_range(10000, 20000); |