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igb: fixes 82576 serdes init to correctly support manual flow control changes

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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>
This commit is contained in:
Alexander Duyck 2008-08-04 14:59:56 -07:00 committed by Jeff Garzik
parent c743a87eab
commit 726c09e7b6
2 changed files with 7 additions and 0 deletions
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6
drivers/net/igb/e1000_82575.c
View file

@ -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;

1
drivers/net/igb/e1000_defines.h
View file

@ -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