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authorAlexander Duyck <alexander.h.duyck@intel.com>2008-08-04 14:59:56 -0700
committerJeff Garzik <jgarzik@redhat.com>2008-08-07 01:55:09 -0400
commit726c09e7b6b7b9f9015ae7ce803ba4cd67121d67 (patch)
tree51ed0f9f8222eb6fb27c5b637e5ac6c3b37fc773
parentc743a87eabc50110ba5e473e707079c9b429779a (diff)
igb: fixes 82576 serdes init to correctly support manual flow control changes
This patch changes the PCS configuration for serdes so that the flow control options change be set via the ethtool -A option. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
-rw-r--r--drivers/net/igb/e1000_82575.c6
-rw-r--r--drivers/net/igb/e1000_defines.h1
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/igb/e1000_82575.c b/drivers/net/igb/e1000_82575.c
index f3d7be0427f..cd75a2bc24a 100644
--- a/drivers/net/igb/e1000_82575.c
+++ b/drivers/net/igb/e1000_82575.c
@@ -1136,6 +1136,12 @@ static s32 igb_setup_fiber_serdes_link_82575(struct e1000_hw *hw)
E1000_PCS_LCTL_FORCE_LINK; /* Force Link */
hw_dbg("Configuring Forced Link; PCS_LCTL = 0x%08X\n", reg);
}
+
+ if (hw->mac.type == e1000_82576) {
+ reg |= E1000_PCS_LCTL_FORCE_FCTRL;
+ igb_force_mac_fc(hw);
+ }
+
wr32(E1000_PCS_LCTL, reg);
return 0;
diff --git a/drivers/net/igb/e1000_defines.h b/drivers/net/igb/e1000_defines.h
index afdba3c9073..ce700689fb5 100644
--- a/drivers/net/igb/e1000_defines.h
+++ b/drivers/net/igb/e1000_defines.h
@@ -257,6 +257,7 @@
#define E1000_PCS_LCTL_FDV_FULL 8
#define E1000_PCS_LCTL_FSD 0x10
#define E1000_PCS_LCTL_FORCE_LINK 0x20
+#define E1000_PCS_LCTL_FORCE_FCTRL 0x80
#define E1000_PCS_LCTL_AN_ENABLE 0x10000
#define E1000_PCS_LCTL_AN_RESTART 0x20000
#define E1000_PCS_LCTL_AN_TIMEOUT 0x40000