Date: Tue, 17 Jan 2017 12:03:55 -0800 From: Ngie Cooper <yaneurabeya@gmail.com> To: "Hartmann, O." <ohartmann@walstatt.org> Cc: FreeBSD CURRENT <freebsd-current@freebsd.org>, Sean Bruno <sbruno@FreeBSD.org> Subject: Re: r312348: igb broken: reporting wrong linkspeed! Message-ID: <C52317C4-22C1-47AB-B839-3FD9B74C14BC@gmail.com> In-Reply-To: <20170117205455.333206db@hermann> References: <20170117205455.333206db@hermann>
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> On Jan 17, 2017, at 11:54, Hartmann, O. <ohartmann@walstatt.org> wrote:
>=20
> 12-CURRENT (FreeBSD 12.0-CURRENT #74 r312348: Tue Jan 17 19:54:58 CET
> 2017 am64) reports the wrong linkspeed on a dualport Intel i350 NIC:
>=20
> igb0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
> 1500
> options=3D653dbb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCS=
UM,TSO4,LRO,WOL_UCAST,WOL_MCAST,WOL_MAGIC,VLAN_HWFILTER,VLAN_HWTSO,RXCSUM_IP=
V6,TXCSUM_IPV6>
> ether xx:xx:xx:xx:xx:xx inet 192.168.0.111 netmask 0xffffff00 broadcast
> 192.168.0.255 nd6 options=3D29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
> media: Ethernet autoselect (100baseTX <full-duplex>)
> status: active
>=20
> The swith the NIC is connected to reports 1 GBit. I checked with two
> switches, FreeBSD reports bullshit on that subject.
>=20
> I also realised severe problems of this Intel i350 dual NIC cards with
> FreeBSD (we use this NIC type as a standard and so we have plenty, all
> with the same issue). When the NIC negotiates its linkspeed, it very
> often fall back to 100 MBit. This behaviour is not predictable, but it
> occurs with a SoHo smart managed Netgear GS110TBv2 and some of our
> Cisco Catalyst switches at work (some 35XX and 29XX, I do not know the
> exact type).
Hi,
One of the workarounds for igb wasn't ported to the new driver--I rememb=
er an issue like this being solved sometime in the 2015-2016 timeframe (I'm l=
eaning towards 2016).
Thanks,
-Ngie=
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