Date: Mon, 24 Sep 2007 17:17:40 +0100 From: Chris <chrcoluk@gmail.com> To: Chris <chrcoluk@gmail.com>, freebsd-hardware@freebsd.org, "FreeBSD Stable" <freebsd-stable@freebsd.org> Subject: Re: nfe driver 6.2 stable Message-ID: <3aaaa3a0709240917p2776136fn50eb2d5bbbaeebf2@mail.gmail.com> In-Reply-To: <20070924020116.GA36909@eos.sc1.parodius.com> References: <3aaaa3a0709231657r3264c873ife71800731608b03@mail.gmail.com> <20070924020116.GA36909@eos.sc1.parodius.com>
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On 24/09/2007, Jeremy Chadwick <koitsu@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 | > > Ok to recap I have nforce 430 MCP13 I checked the src and current and 6.2-stable driver I am using are the same version number but my driver src has this added above tunables. /* definitions for backporting RELENG-6 */ #ifndef IFCAP_TSO4 #define IFCAP_TSO4 0 #define CSUM_TSO 0 #endif #ifndef VLAN_CAPABILITIES #define VLAN_CAPABILITIES(x) #endif #ifndef IFCAP_VLAN_HWCSUM #define IFCAP_VLAN_HWCSUM 0 #endif I am guessing If I set the values to 1 I get the features but would like someone to confirm this for me before I try it thanks. I only have remote access so if it stops the card working I lose access to the box. Chris
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