Re: [Minios-devel] test cases or applications to verify the virtio in unikraft

[Sharan Santhanam <sharan.santhanam@xxxxxxxxx>]

Hello Jia He,

It is nice to know the virtio libraries are working on the ARM 
architecture as well.
On 12/17/18 10:44 AM, Jia He wrote:
> Hi,Sharan
>
> Thanks a lot for your help. I've tested your provided Unikraft 
> Application for
> virtio_mmio/virtio_net devices on arm64. Seems it works fine, please see 
> my log
> file in the attachments.
>
> But my patches depends on chenwei's multi-thread/gic-v2 series. I can't 
> send it
> out before chenwei's patches get merged.
>
> So could you please send more test demos to me (dpdk related would be 
> better :)).
Unfortunately we have not yet added dpdk support to our platform. We 
will work on it. We are also in the process of upstreaming LWIP which 
would allow us to implement network application. In the meanwhile you 
could use this link [1] for the lwip library.
To use the lwip library we had the simple sample application
#include <uk/config.h>
#if !CONFIG_LWIP_NOTHREADS
#include <uk/sched.h>
#else
#include <lwip/timeouts.h>
#if CONFIG_LWIP_UKNETDEV
#include <netif/uknetdev.h>
#endif
#endif
#include <stdio.h>
#include <uk/essentials.h>

int main(int argc __unused, char *argv[] __unused)
{
        printf("LWIP Testing\n");
        fflush(stdout);
#if CONFIG_LWIP_NOTHREADS
        printf("Operate the stack from main thread...");
        for (;;) {
                sys_check_timeouts();
#if CONFIG_LWIP_UKNETDEV
                uknetdev_poll_all();
#endif
        }
#else
        printf("Let the stack operate on its own thread...");
        for (;;) {
                uk_sched_thread_sleep(ukarch_time_sec_to_nsec(1));
                printf(".");
                fflush(stdout);
        }
#endif
}

[1] www.github.com/sysml/ucc-lwip

Thanks & Regards
Sharan

> It will take us less time to follow up what you have done. Thanks a lot!
>
>
> ---
>
> Cheers,
>
> Jia He (Justin)
>
> 在 2018/12/4 9:35, Jia He 写道:
> > Thanks, Sharan  :)
> >
> > Cheers,
> >
> > Justin (Jia He)
> >
> > 在 2018/12/3 20:02, Sharan Santhanam 写道:
> > > Hello Jia He,
> > >
> > > We used an external Unikraft Application to test the 
> > > virtio-net/libuknet drivers. We had 2 network device attached to 
> > > unikraft
> > > 1) To receive a network packet from a interface
> > > 2) Forward the received network packet on the other interface
> > >
> > > I have attached an overview diagram of our setup and a patch of our 
> > > test code. This is a sample test code which may not be upstreamed. 
> > > You could use it as a reference for the test application.
> > > On the side note, we are in the process of adding support for LWIP 
> > > with the new drivers. This would gives us the option to build network 
> > > applications.
> > > Thanks & Regards
> > > S Sharan
> > >
> > > On 12/03/2018 07:09 AM, Jia He wrote:
> > > > Hi Sharan
> > > >
> > > > I am working on porting virtio-mmio to arm64 in unikraft.
> > > >
> > > > Could you please give me a hint that how do you test the virtio-net
> > > >
> > > > applications? I guess there might be some test cases or applications
> > > >
> > > > when you write the implementation of virtio-net and virtio-pci, but I
> > > >
> > > > can find any codes.
> > > >
> > > > Thanks
> > > >
> > > >
> > > > B.R.
> > > >
> > > > Justin (Jia He)
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