Gentoo Archives: gentoo-user

From: Daniel Troeder <daniel@×××××××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] xen-sources and igb (intel network) driver
Date: Thu, 13 Jan 2011 20:08:50
Message-Id: 4D2F4E4C.10506@admin-box.com
In Reply to: Re: [gentoo-user] xen-sources and igb (intel network) driver by Konstantinos Agouros
1 On 01/11/2011 03:09 PM, Konstantinos Agouros wrote:
2 > In <1294686017.7979@rumba> elwood@×××××××.de (Konstantinos Agouros) writes:
3 >
4 >> Hi,
5 >
6 >> I just upgraded my box to a phenom and an intel quad gbit card.
7 >> The card is a 82575GB. It is recognized (I use xen-sources 2.6.34-r4) and
8 >> also tried the latest driver available at intel (2.4.12). Ifconfig
9 >> show the interfaces mac addresses etc.
10 >
11 >> However I do not get a link. Neither on a switch nor on a laptop
12 >> with gbit interface.
13 >
14 >> I found googling that there seems to be an issue with xen and this card/
15 >> chip. Anybody knows a way out of it? Especially since the card should have
16 >> some virtualization optimizations?
17 > OK more googling gave me the answer:
18 >
19 > ethtool -K tx off
20 >
21 > Now the question is:
22 > what is the 'gentooest' way to put this into /etc/conf.d/net?
23 > From reading the example file I would guess a preup() function.
24 >
25 > Also: is /etc/conf.d/net the place to put in the bridge definitions for
26 > the xen guests? If yes, how do I get it to create empty bridges for inter-
27 > guest communications?
28 >
29 > Regards,
30 >
31 > Konstantin
32 -----------------
33 brctl_br0=( "setfd 0" "sethello 0" "stp on" )
34 config_br0=( "aa.bb.cc.dd netmask dd.ee.ff.gg broadcast hh.ii.jj.kk" )
35 routes_br0=( "default via ll.mm.nn.oo" )
36 dns_domain_br0="example.com"
37 dns_servers_br0="pp.qq.rr.ss tt.uu.vv.ww"
38 dns_search_br0="example.com"
39 bridge_add_eth0="br0"
40 config_eth0=( "null" )
41
42 brctl_br1=( "setfd 0" "sethello 0" "stp on" )
43 config_br1=( "null" )
44 ----------------
45
46 This should create two bridges:
47 br0 gets the public IP and the physical interface is connected to it
48 br1 can be used to interconnect two VMs without connection to dom0
49 and the outside world
50
51 /etc/conf.d/net is super powerfull, and super bad documented :(
52
53 Bye,
54 Daniel
55
56
57 --
58 PGP key @ http://pgpkeys.pca.dfn.de/pks/lookup?search=0xBB9D4887&op=get
59 # gpg --recv-keys --keyserver hkp://subkeys.pgp.net 0xBB9D4887

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