Re: nfe driver 6.2 stable
- From: Pyun YongHyeon <pyunyh@xxxxxxxxx>
- Date: Thu, 27 Sep 2007 15:51:55 +0900
On Mon, Sep 24, 2007 at 04:44:09PM +0100, Chris wrote:
On 24/09/2007, Jeremy Chadwick <koitsu@xxxxxxxxxxx> 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
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