From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bukie Mabayoje Subject: Re: 2.4.29, e100 and a WOL packet causes keventd going mad Date: Sun, 30 Jan 2005 20:23:47 -0800 Message-ID: <41FDB2D3.5CBD6F7D@gte.net> References: <20050130171849.GA3354@hardeman.nu> <1107143255.18167.428.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: David =?iso-8859-1?Q?H=E4rdeman?= , Michael Gernoth , linux-kernel@vger.kernel.org, netdev@oss.sgi.com Return-path: To: sfeldma@pobox.com Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Scott Feldman wrote: > On Sun, 2005-01-30 at 09:18, David H=C3=A4rdeman wrote: > > I experience the same problems as reported by Michael Gernoth when > > sending a WOL-packet to computer with a e100 NIC which is already > > powered on. > > I didn't look at the 2.4 case, but for 2.6, it seems e100 was enablin= g > PME wakeup during probe. PME shouldn't be enabled while the system i= s > up. I suspect the assertion of PME while the system is up is what's > causing problems. This patch moves PME wakeup enabling to either > suspend or shutdown. > > David, would you give this patch a try? Make sure the system still > wakes from a magic packet if suspended or shut down, and doesn't caus= e > kacpid to go crazy if system is running. If it helps for 2.6, perhap= s > someone can look into 2.4 to see if there is something similar going = on This issue was reported on 2.4. > > there. > > -scott > > --- linux-2.6.11-rc2/drivers/net/e100.c.orig 2005-01-30 19:13:56.8= 50497376 -0800 > +++ linux-2.6.11-rc2/drivers/net/e100.c 2005-01-30 19:26:41.154305536= -0800 > @@ -1868,7 +1868,6 @@ static int e100_set_wol(struct net_devic > else > nic->flags &=3D ~wol_magic; > > - pci_enable_wake(nic->pdev, 0, nic->flags & (wol_magic | e100_= asf(nic))); > e100_exec_cb(nic, NULL, e100_configure); > > return 0; > @@ -2262,8 +2261,6 @@ static int __devinit e100_probe(struct p > (nic->eeprom[eeprom_id] & eeprom_id_wol)) > nic->flags |=3D wol_magic; > > - pci_enable_wake(pdev, 0, nic->flags & (wol_magic | e100_asf(n= ic))); > - > strcpy(netdev->name, "eth%d"); > if((err =3D register_netdev(netdev))) { > DPRINTK(PROBE, ERR, "Cannot register net device, abor= ting.\n"); > @@ -2344,6 +2341,15 @@ static int e100_resume(struct pci_dev *p > } > #endif > > +static void e100_shutdown(struct device *dev) > +{ > + struct pci_dev *pdev =3D container_of(dev, struct pci_dev, de= v); > + struct net_device *netdev =3D pci_get_drvdata(pdev); > + struct nic *nic =3D netdev_priv(netdev); > + > + pci_enable_wake(pdev, 0, nic->flags & (wol_magic | e100_asf(n= ic))); > +} > + > static struct pci_driver e100_driver =3D { > .name =3D DRV_NAME, > .id_table =3D e100_id_table, > @@ -2353,6 +2359,9 @@ static struct pci_driver e100_driver =3D { > .suspend =3D e100_suspend, > .resume =3D e100_resume, > #endif > + .driver =3D { > + .shutdown =3D e100_shutdown, > + } > }; > > static int __init e100_init_module(void) > > - > To unsubscribe from this list: send the line "unsubscribe linux-kerne= l" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/