Date: Fri, 28 Jan 2011 11:10:28 -0500 From: Mike Tancsa <mike@sentex.net> To: Jan Koum <jan@whatsapp.com> Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>, Jack Vogel <jfvogel@gmail.com>, Ivan Voras <ivoras@freebsd.org>, Sean Bruno <seanbru@yahoo-inc.com>, "freebsd-hardware@freebsd.org" <freebsd-hardware@freebsd.org> Subject: Re: em driver, 82574L chip, and possibly ASPM Message-ID: <4D42EA74.4090807@sentex.net> In-Reply-To: <4D3C4795.40205@sentex.net> References: <icgd44$89l$1@dough.gmane.org> <1290533941.3173.50.camel@home-yahoo> <4CEC0548.1080801@sentex.net> <AANLkTim82pWyf_X%2Bu72uj8RkWeRUb_4KSQ8B_HpNYsP9@mail.gmail.com> <AANLkTinO1yfN--_K63-yD1LY3wusOF7wB2wwG8DUd5Z4@mail.gmail.com> <4D2C636B.5040003@sentex.net> <AANLkTimFzYZOkwdExm5JPRB7BaN8Am8pPcgrMT0wVZqy@mail.gmail.com> <4D3C4795.40205@sentex.net>
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On 1/23/2011 10:21 AM, Mike Tancsa wrote:
> On 1/21/2011 4:21 AM, Jan Koum wrote:
> One other thing I noticed is that when the nic is in its hung state, the
> WOL option is gone ?
>
> e.g
>
> em1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
> options=19b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4>
> ether 00:15:17:ed:68:a4
>
> vs
>
>
> em1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
>
> options=219b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,WOL_MAGIC>
> ether 00:15:17:ed:68:a4
Another hang last night :(
Whats really strange is that the WOL_MAGIC and TSO4 got turned back on
somehow ? I had explicitly turned it off, but when the NIC was in its
bad state
em1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=2198<VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,WOL_MAGIC>
... its back on along with TSO? Not sure if its coincidence or a side
effect or what. For now, I have had to re-purpose this nic to something
else.
debug info shows
Jan 28 00:25:10 backup3 kernel: Interface is RUNNING and INACTIVE
Jan 28 00:25:10 backup3 kernel: em1: hw tdh = 625, hw tdt = 625
Jan 28 00:25:10 backup3 kernel: em1: hw rdh = 903, hw rdt = 903
Jan 28 00:25:10 backup3 kernel: em1: Tx Queue Status = 0
Jan 28 00:25:10 backup3 kernel: em1: TX descriptors avail = 1024
Jan 28 00:25:10 backup3 kernel: em1: Tx Descriptors avail failure = 0
Jan 28 00:25:10 backup3 kernel: em1: RX discarded packets = 0
Jan 28 00:25:10 backup3 kernel: em1: RX Next to Check = 903
Jan 28 00:25:10 backup3 kernel: em1: RX Next to Refresh = 904
Jan 28 00:25:27 backup3 kernel: em1: link state changed to DOWN
Jan 28 00:25:30 backup3 kernel: em1: link state changed to UP
---Mike
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