Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3d5460a0ba17437cf278ee46886d557340d028da
Commit: 3d5460a0ba17437cf278ee46886d557340d028da
Parent: 0fccd0e9e3802748855d967940c16f8c59d4e2b6
Author: Jesse Brandeburg <[EMAIL PROTECTED]>
AuthorDate: Fri Dec 15 10:33:46 2006 +0100
Committer: Jeff Garzik <[EMAIL PROTECTED]>
CommitDate: Tue Dec 26 15:51:29 2006 -0500
[PATCH] e1000: Fix Wake-on-Lan with forced gigabit speed
If the user has forced gigabit speed, phy power management must be disabled;
otherwise the NIC would try to negotiate to a linkspeed of 10/100 mbit on
shutdown, which would lead to a total loss of link. This loss of link breaks
Wake-on-Lan and IPMI.
Signed-off-by: Jesse Brandeburg <[EMAIL PROTECTED]>
Signed-off-by: Auke Kok <[EMAIL PROTECTED]>
Signed-off-by: Arjan van de Ven <[EMAIL PROTECTED]>
Signed-off-by: Jeff Garzik <[EMAIL PROTECTED]>
---
drivers/net/e1000/e1000_main.c | 14 ++++++++++++++
1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 7a51283..f772e4d 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -732,6 +732,20 @@ e1000_reset(struct e1000_adapter *adapter)
if (e1000_init_hw(&adapter->hw))
DPRINTK(PROBE, ERR, "Hardware Error\n");
e1000_update_mng_vlan(adapter);
+
+ /* if (adapter->hwflags & HWFLAGS_PHY_PWR_BIT) { */
+ if (adapter->hw.mac_type >= e1000_82544 &&
+ adapter->hw.mac_type <= e1000_82547_rev_2 &&
+ adapter->hw.autoneg == 1 &&
+ adapter->hw.autoneg_advertised == ADVERTISE_1000_FULL) {
+ uint32_t ctrl = E1000_READ_REG(&adapter->hw, CTRL);
+ /* clear phy power management bit if we are in gig only mode,
+ * which if enabled will attempt negotiation to 100Mb, which
+ * can cause a loss of link at power off or driver unload */
+ ctrl &= ~E1000_CTRL_SWDPIN3;
+ E1000_WRITE_REG(&adapter->hw, CTRL, ctrl);
+ }
+
/* Enable h/w to recognize an 802.1Q VLAN Ethernet packet */
E1000_WRITE_REG(&adapter->hw, VET, ETHERNET_IEEE_VLAN_TYPE);
-
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