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Date:      Wed, 05 May 2010 23:19:25 +0200
From:      Harald Schmalzbauer <h.schmalzbauer@omnilan.de>
To:        Jack Vogel <jfvogel@gmail.com>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: em WOL_MCAST repowers machine after poweroff [Was: Re: em JumboFrame improovement and PCIe addon-card regression]
Message-ID:  <4BE1E0DD.6070107@omnilan.de>
In-Reply-To: <m2u2a41acea1004271458k7a43aa6bo858f229158ef3b7c@mail.gmail.com>
References:  <4BC82B80.3070108@omnilan.de>	 <20100416092803.GA17526@icarus.home.lan> <4BC82FF7.1030700@omnilan.de>	 <201004160822.09359.jhb@freebsd.org>	 <p2i2a41acea1004160829i53efa312k3ebec61cc2d9d251@mail.gmail.com>	 <u2s179b97fb1004160832u69175c8bi1c5a069cf872ef5b@mail.gmail.com>	 <4BC8A76A.6000107@omnilan.de>	 <s2q2a41acea1004161302k9e1261adx45efb4c9b0eebabd@mail.gmail.com>	 <4BC8CB9E.8060802@omnilan.de> <4BD75D2E.50302@omnilan.de> <m2u2a41acea1004271458k7a43aa6bo858f229158ef3b7c@mail.gmail.com>

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Jack Vogel schrieb am 27.04.2010 23:58 (localtime):
> Thanks Harald,
>=20
> Have already been made aware of this, its due to the broadcast WOL bein=
g=20
> enabled, I will be
> fixing the problem shortly. Sorry for the inconvenience.

Hello Jack,

I saw your RELENG_8 change and recompiled one kernel today. It seems=20
that you only disabled WOL_*CAST for 7.0.5 adapters. Here's one=20
S3200SHLX board, which has two onboard nics (em0 with WOL_*CAST disabled =

and em1 with WOL_* enabled):

em0: <Intel(R) PRO/1000 Network Connection 7.0.5> port 0x30e0-0x30ff mem =

0xe1b00000-0xe1b1ffff,0xe1b20000-0xe1b20fff irq 20 at device 25.0 on pci0=

em0: Using MSI interrupt
em0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 15=
00
options=3D219b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,WOL=
_MAGIC>

em1: <Intel(R) PRO/1000 Legacy Network Connection 1.0.1> port=20
0x1000-0x103f mem 0xe1920000-0xe193ffff,0xe1900000-0xe191ffff irq 18 at=20
device 2.0 on pci4
em1: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu=20
1500=20
options=3D389b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_UCAS=
T,WOL_MCAST,WOL_MAGIC>

I set this options manually on another box and with these em1 settings=20
the machine powers up immediately.
But I have a much more severe problem:
I disabled WOL_MCAST with ifconfig for one of my cold-standby machines.=20
But the machine doesn't wake up any more, even if I can see the WOL=20
packets arriving at the NIC (LED blinks).
Since the machine also doesn't power up on WOL when shutted down via=20
ESXi I thought that was an issue with BIOS49, which I recently upgraded=20
to. I filed an intel reseller case -> status still in progress.
Is it possible that the new code also broke intentionally WOL events?

Thanks,

-Harry


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