KVM Support?

[Eddie James]

On 07/16/2018 10:01 AM, Avi Fishman wrote:
> Hi Eddie,
>
> Is it based on V4L or also VNC?
> Does it have HW compression or SW only?

Hi,

The driver interface is V4L2, though I am just using read() calls rather 
than the streaming interface.
The network interface is VNC, directly sending JPEGs to the clients 
rather than using the normal VNC framebuffer update methods.

Compression is done in HW, and then decompression at the client. So CPU 
usage on the BMC is kept low, though bandwidth usage is pretty high 
because it sends the whole frame every time. Seems to work with any VNC 
client that supports JPEG compression.

I'm currently working through some input latency problems; seems the 
bandwidth usage for the frames causes huge delays for sending the input 
events from the client to the server. Other than that it's working well.

Thanks,
Eddie

>
> Thanks,
> Avi
> On Mon, Jul 16, 2018 at 5:03 PM Eddie James <eajames at linux.vnet.ibm.com> wrote:
>>
>>
>> On 07/16/2018 01:34 AM, AKASH G J wrote:
>>> Hi Team,
>>>
>>> Please someone share whether Keyboard Video Mouse (KVM) over IP
>>> implementation available in OpenBMC ?
>> Hi Akash,
>>
>> It's in development... If you want to help, let me know! I'll be
>> updating the mailing list with drivers, etc, when it's more functional.
>>
>> Thanks,
>> Eddie
>>
>>>
>>>
>>> Thanks and Regards,
>>>
>>> Akash