nfe driver 6.2 stable
Chris
chrcoluk at gmail.com
Thu Sep 27 10:30:22 PDT 2007
On 27/09/2007, Pyun YongHyeon <pyunyh at gmail.com> wrote:
> On Mon, Sep 24, 2007 at 04:44:09PM +0100, Chris wrote:
> > On 24/09/2007, Jeremy Chadwick <koitsu at freebsd.org> wrote:
> > > On Mon, Sep 24, 2007 at 12:57:23AM +0100, Chris wrote:
> > > > nfe0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> > > > options=8<VLAN_MTU>
> > > > inet x.x.x.x netmask 0xffffff00 broadcast x.x.x.x
> > > > inet x.x.x.x netmask 0xffffffff broadcast x.x.x.x
> > > > ether x
> > > > media: Ethernet autoselect (1000baseTX <full-duplex>)
> > > > status: active
> > > >
> > > > 1 - is there a man page for nfe anywhere?
> > >
> > > Closest thing I can find would be the manpage from -CURRENT's nfe(4),
> > > which is supposedly the same code.
> > >
> > > http://www.freebsd.org/cgi/man.cgi?query=nfe&apropos=0&sektion=0&manpath=FreeBSD+7-current&format=html
> > >
> > > > 2 - does it support hardware checksum I remember reading it does but
> > > > from ifconfig output it appears to not be in use so if it does support
> > > > it how do I enable it?
> > >
> > > It does support it, but I don't know the circumstances surrounding when
> > > it gets enabled. That is to say, it's known that some versions of the
> > > chip (and/or associated PHY) have bugs, so possibly hardware checksum
> > > offloading is known to be broken on the system you're on. Taken from my
> > > 7-CURRENT box at home (Asus A8N-E, nForce 4-based):
> > >
> > > nfe0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
> > > options=10b<RXCSUM,TXCSUM,VLAN_MTU,TSO4>
> > > ether 00:15:f2:17:30:e9
> > > inet 192.168.1.51 netmask 0xffffff00 broadcast 192.168.1.255
> > > media: Ethernet 1000baseTX <full-duplex>
> > > status: active
> > >
> > > I do not explicitly specify rxcsum or txcsum in my rc.conf ifconfig
> > > line.
> > >
> > > > 3 - same with TOS?
> > >
> > > TOS (type-of-service) or TSO? If TSO, see above ifconfig.
> > >
> > > > 4 - how do I enable jumbo frames if it supports it?
> > >
> > > You should take a bit more itme to read the webpage you obtained the
> > > driver from. I see these on the page:
> > >
> > > 2007/01/06 Added jumbo frame support. [...] Fixed a bug to handle
> > > Tx/Rx checksum offload settings with ifconfig.
> > > 2006/08/11 Added support for jumbo frame capability.
> > >
> > > yongari@ (Pyun YongHyeon) should be able to provide additional help
> > > with both.
> > >
> > > > 5 - is it safe to use with zero copy sockets?
> > >
> > > No idea.
> > >
> > > > 6 - I currently have both net.isr.direct and mpsafenet disabled is
> > > > this driver safe to use on them?
> > >
> > > No idea.
> > >
> > > --
> > > | Jeremy Chadwick jdc at parodius.com |
> > > | Parodius Networking http://www.parodius.com/ |
> > > | UNIX Systems Administrator Mountain View, CA, USA |
> > > | Making life hard for others since 1977. PGP: 4BD6C0CB |
> > >
> > >
> >
> > Thanks yes I meant TSO sorry, I would guess with the checksum either
> > the 6.x driver is older and not fully implemented yet, the 6.x driver
> > does need more patches for certian chipsets so would indicate its
> > older then the CURRENT driver. Or as you said my chipset is known to
> > be unstable with the hardware checksums.
> >
>
> See the other mail I've posted.
>
> > The card is more stable when using nve driver no crashes still but the
> > performance is around the same maxing out at around 200mbit. I was
> > expecting nearer 400-500mbit.
> >
> > e1000phy0: <Marvell 88E1116 Gigabit PHY> on miibus0
> >
>
> There had been issues nfe(4) with 88E1116/88E1149 PHYs but your issue
> seems to be different one. How about manually set media configuration?
> For example, "ifconfig nfe0 media 1000baseTX mediaopt full-duplex"
>
> > Is the line from dmesg, I believe in CURRENT mpsafe is always on
> > regardless so if you have no problems then its a good sign and I will
> > reenable mpsafe networking (default).
> >
> > Thanks really appreciated.
> >
> > Chris
> --
> Regards,
> Pyun YongHyeon
>
I typod I meant to say nve was unstable and nfe has been rock solid so
great work with the driver. I enabled mpsafe now and still no
problems and its gave me a little more performance as well, a shame my
nic has no hardware features (unusual for a gigabit nic) but overall
glad its at least stable.
Chris
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