Re: [Qemu-devel] Simulate different network card vendors

[rajan pathak]

Thanks Stefan.

I don't have source code of  QEMU emulation of the network card?

I do have the source code(driver code) of the devices the I wanted to emulate.

Basically,Ethernet controller, I wanted to emulate has following two main part

 

1)Ethernet PHY 

 2)Ethernet MAC

nd have driver code for these devices.

But I don't know what are the steps to emulate it for QEMU.

Would you suggest me some links where I can get some idea of how emulating a Device for QEMU?

Thanks,

Rajan

On Mon, Jan 20, 2014 at 9:52 PM, Stefan Hajnoczi <address@hidden> wrote:

On Sat, Jan 18, 2014 at 09:19:43AM -0800, rajan pathak wrote:
> I am looking forward to emulate single-chip Ethernet controller.
>
> I can find some of its source code online and it has two main part Ethernet
> PHY (any 1GB SGMII compatible)
> and Ethernet MAC .
>
> So ,DO I need to simply put the corresponding source files of PHY and MAC
> in hw/net directory of QEMU?

I'm not sure what you mean.  Do you have source code for QEMU emulation
of the network card?

If you have some other source code like a driver for the card, or
emulation for the card but not for QEMU, then a lot more work would be
necessary to emulate the card in QEMU.

> Also ,do I need to take care of underlying Ethernet controller(of my
> machine where I am trying to do this) from
> Broadcom in any way?

QEMU uses mechanisms to send raw packets from userspace, like the
tun/tap driver that many OSes have.  Therefore the physical NIC doesn't
matter, it's abstracted by the tun/tap interface that the host kernel
provides.