From: Don Skidmore <donald.c.skidmore@intel.com>
Date: Tue, 24 Nov 2009 18:51:48 +0000 (+0000)
Subject: ixgbe: LINKS2 is not a valid register for 82598
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=000c486ddae850106a29e45a5d660dff49ad566a;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git
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>
---
diff --git a/drivers/net/ixgbe/ixgbe_common.c b/drivers/net/ixgbe/ixgbe_common.c
index f42a954ef660..79533e2720f9 100644
--- a/drivers/net/ixgbe/ixgbe_common.c
+++ b/drivers/net/ixgbe/ixgbe_common.c
@@ -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;
+ }
+ }
}
/*