Commit 000c486d authored by Don Skidmore's avatar Don Skidmore Committed by David S. Miller
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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: default avatarDon Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: default avatarPeter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9bbe3a57
......@@ -1755,17 +1755,24 @@ s32 ixgbe_fc_autoneg(struct ixgbe_hw *hw)
/*
* On backplane, bail out if
* - backplane autoneg was not completed, or if
* - link partner is not AN enabled
* - we are 82599 and link partner is not AN enabled
*/
if (hw->phy.media_type == ixgbe_media_type_backplane) {
links = IXGBE_READ_REG(hw, IXGBE_LINKS);
links2 = IXGBE_READ_REG(hw, IXGBE_LINKS2);
if (((links & IXGBE_LINKS_KX_AN_COMP) == 0) ||
((links2 & IXGBE_LINKS2_AN_SUPPORTED) == 0)) {
if ((links & IXGBE_LINKS_KX_AN_COMP) == 0) {
hw->fc.fc_was_autonegged = false;
hw->fc.current_mode = hw->fc.requested_mode;
goto out;
}
if (hw->mac.type == ixgbe_mac_82599EB) {
links2 = IXGBE_READ_REG(hw, IXGBE_LINKS2);
if ((links2 & IXGBE_LINKS2_AN_SUPPORTED) == 0) {
hw->fc.fc_was_autonegged = false;
hw->fc.current_mode = hw->fc.requested_mode;
goto out;
}
}
}
/*
......
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