working virtio-net.device for QEMU : no more issues with rtl drivers !

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balaton

Re: working virtio-net.device for QEMU : no more issues with rtl drivers !

Posted on: Today 20:17 #21

Just can't stay away

@smarkusg
Quote:

I also don't remember how MorphOS worked with RTL8139 and Qemu.

I haven't heard reports from there but I don't usually hear anything from MorphOS people. Not many people use MorphOS with QEMU as you can't register only try the demo and maybe the few who do use it use mac99 with sungem instead.

https://qmiga.codeberg.page/

balaton

Re: working virtio-net.device for QEMU : no more issues with rtl drivers !

Posted on: Today 20:23 #22

Just can't stay away

@kas1e
Quote:

Why then on all machines include x5000 rtl8139 show no bugs ? Too slow in compare with qemu ? But imho x5000 faster than qemu emulation, shouldnt be issue with too many irqs ?

CPU speed probably does not matter here more network speed. X5000 uses different kernel so problem may only be with pegasos2 or with IRQ sharing. If there's a problem with interrupt handling in AmigaOS it could explain a hang. Is it possible to get a stacktrace of a hung driver to see where it stopped?

Quote:

Also, all in all, we can try non interrupt way for virtionet.device , i mean this busy-waiting/polling by cpu instead of irqs ? I tried it on real x1000 now (i mean non interrupt way) and while have ai bugs it works, and i didnt see lot of cpu loading (if at all) probably because roadshow limited speed anyway .. maybe as test worth of try ?

Polling is not an option as it would be very ineffifient so I don't think it's usable. It may only be used to test if the problem is in interrupt handling. With polling if you limit the number of polls to avoid high load it will limit the speed and if you do it too often it will generate constant load even if nothing is transferred. That's why these normally use interrupts which is a better way to handle these async events.

https://qmiga.codeberg.page/

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