From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: [patch 05/14] e1000: Fix Wake-on-Lan with forced gigabit speed Date: Fri, 15 Dec 2006 09:33:00 -0500 Message-ID: <4582B21C.2060006@garzik.org> References: <1166174907.3365.108.camel@laptopd505.fenrus.org> <1166175226.3365.119.camel@laptopd505.fenrus.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org Return-path: Received: from srv5.dvmed.net ([207.36.208.214]:55136 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752643AbWLOOdD (ORCPT ); Fri, 15 Dec 2006 09:33:03 -0500 To: Arjan van de Ven In-Reply-To: <1166175226.3365.119.camel@laptopd505.fenrus.org> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Arjan van de Ven wrote: > Subject: e1000: Fix Wake-on-Lan with forced gigabit speed > From: Jesse Brandeburg > > 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 > Signed-off-by: Auke Kok > Signed-off-by: Arjan van de Ven > --- > > drivers/net/e1000/e1000_main.c | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > > Index: linux-2.6/drivers/net/e1000/e1000_main.c > =================================================================== > --- linux-2.6.orig/drivers/net/e1000/e1000_main.c > +++ linux-2.6/drivers/net/e1000/e1000_main.c > @@ -732,6 +732,20 @@ e1000_reset(struct e1000_adapter *adapte > 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); NAK, for same reason as other patches. I have been telling Intel this for months, yet keep seeing the same patches.