Re: [CFT] VMware vmxnet3 ethernet driver


On 8/6/13 6:52 AM, Bryan Venteicher wrote:
>
> ----- Original Message -----
>> I have ~100 FreeBSD 8/9 VMs in my vSphere 5.1 environment, all using the
>> VMware tools package from VMware. Everything has been running great for
>> years.
>> (we skipped vSphere 5.0). Why should I use this vmxnet driver instead of the
>> VMware tools driver or the emulated e1000?
>>
> They are out of tree and subject to rotting. I had to use the patches
> at [1] to even get them to compile on 9.1 and -current. I don't think
> VMware puts much engineering resources behind it; there was a compiler
> warning of a silly bug like:
>      if (foo) ;
>          do_something();
>
> vmxnet3 has modern features LRO, IPv6 checksum offloading, etc that
> the emulated e1000 lacks. In my test setup, e1000 tops out at 30MB/sec
> but vmxnet3 goes to 50MB/sec. I'd like to hear other's experiences.

it'd be nice if we could get vmware to just support the drivers in tree..
by which I mean, just submit patches.. why do they need to have it out 
of tree?
>
> [1] - http://ogris.de/vmware/
>
>> --
>> Joel
>>
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