ixgbe: LINKS2 is not a valid register for 82598
82598 shouldn't try and access LINKS2 while configuring link and flow control. This is an 82599-only register. Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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1 changed files with 11 additions and 4 deletions
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@ -1755,17 +1755,24 @@ s32 ixgbe_fc_autoneg(struct ixgbe_hw *hw)
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/*
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* On backplane, bail out if
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* - backplane autoneg was not completed, or if
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* - link partner is not AN enabled
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* - we are 82599 and link partner is not AN enabled
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*/
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if (hw->phy.media_type == ixgbe_media_type_backplane) {
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links = IXGBE_READ_REG(hw, IXGBE_LINKS);
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links2 = IXGBE_READ_REG(hw, IXGBE_LINKS2);
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if (((links & IXGBE_LINKS_KX_AN_COMP) == 0) ||
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((links2 & IXGBE_LINKS2_AN_SUPPORTED) == 0)) {
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if ((links & IXGBE_LINKS_KX_AN_COMP) == 0) {
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hw->fc.fc_was_autonegged = false;
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hw->fc.current_mode = hw->fc.requested_mode;
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goto out;
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}
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if (hw->mac.type == ixgbe_mac_82599EB) {
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links2 = IXGBE_READ_REG(hw, IXGBE_LINKS2);
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if ((links2 & IXGBE_LINKS2_AN_SUPPORTED) == 0) {
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hw->fc.fc_was_autonegged = false;
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hw->fc.current_mode = hw->fc.requested_mode;
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goto out;
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}
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}
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}
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/*
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