Hello,
I run 10 days ago the code you sent to me in your mail, but I had to
read more about virtio driver to be able to understand a bit more
the architecture of the code.
Well, I used a DragonFly 2.9-development on Virtualbox (not the
latest version of VBox because there is a reported bug for DragonFly
BSD machines, so I use the 3.12) and I used a PCnet-PCI II emulated
network card (NAT mode).
I build the code to load the modules and I did what you mentionned :
#kldload -v ./virtio.ko
virtio_probe 51966virtio_probe 9237virtio_probe 28947Loaded
./virtio.ko, id=5
#kldload -v ./virtio_net.ko
Loaded ./virtio-net.ko, id=6
#dmesg
virtio_probe 51966virtio_probe 9237virtio_probe 28947
I checked the numbers, they match the following devices :
51966 : Virtual Guest Service
9237 : "0x8086","0x2415","Intel Corporation","Intel 82801DBM SM/BUS
Controller 24C3","Aureal (AD1881 SOUNDMAX) Placa Mãe Asaki P3-141"
28947: "0x8086","0x7113","Intel
Corporation","82371AB/EB/MB","PIIX4/4E/4M Power Management
Controller"
However, I see no message from the virtio_attach() fonction nor
virtio_net_probe() or virtio_net_attach() and I don't understand why
( if it is normal, or not ? ).
I tried to launch Virtualbox with virtio-net for the network
configuration to see what would happen, if I could go further and
have more information but I had an error message at the very
beginning :
Configuration error:
Failed to get the "MAC" value (VERR_CFGM_VALUE_NOT_FOUND).
Unknown error creating VM (VERR_CFGM_VALUE_NOT_FOUND).
So the vm couldn't be launched, even when configured with no network
connection.
Stéphanie Ouillon
Le 28/02/11 02:34, Pratyush Kshirsagar a écrit :
Yes, you are right but I did some work porting virtio
network driver from NetBSD before we moved forward to port it from
FreeBSD.
Attached is the partly done code.
The other basic calls needed for block and network drivers are
kept same by Tim and me so that we don't do lot of cleaning and
book keeping stuff.
The working code is in "net" directory and not the nbsd_code.
you need to make the outer dir and then the do make in net.
use kldload -v ./virtio.ko followed by kldload -v
./virtio_net.ko
Thus when you use dmesg it will show the messages during the
netword device probe and attach() with the network device
number/id.
You can mail me for further information.
- Pratyush Kshirsagar.
2011/2/27 Stéphanie Ouillon
<stephanie@minet.net>
Hello,
I've read the posts on the DragonFly BSD Digest site about
virtio, but I have some questions about it.
A virtual network driver was ported from NetBSD, using some
FreeBSD code that wasn't supposed to be public under a BSD
license. So for the moment, the code that is published on
gitorious (http://gitorious.org/virtio-drivers/virtio-drivers/trees/master)
can't be used at all ? Can somebody tell me more about that
?
Thanks !
Regards,
Stéphanie
