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Re: [Qemu-devel] [PATCH] net: Inform the user about deprecated -net opti
From: |
Thomas Huth |
Subject: |
Re: [Qemu-devel] [PATCH] net: Inform the user about deprecated -net options |
Date: |
Wed, 16 Dec 2015 08:20:52 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 |
On 15/12/15 19:08, Paolo Bonzini wrote:
>
>
> On 15/12/2015 18:50, Thomas Huth wrote:
>> On 15/12/15 18:31, Paolo Bonzini wrote:
>>>
>>> On 15/12/2015 18:15, Thomas Huth wrote:
>>>> On 15/12/15 17:21, Paolo Bonzini wrote:
>> [...]
>>>>> For example you could print all DEVICE_CATEGORY_NETWORK devices that
>>>>> support device_add.
>>>>
>>>> I think that would not work since spapr-vlan is not hot-pluggable.
>>>
>>> cannot_instantiate_with_device_add_yet which actually refers to -device,
>>> not really device_add, so it would work.
>>
>> I just tried:
>>
>> (qemu) device_add spapr-vlan
>> Bus 'spapr-vio' does not support hotplugging
>>
>> ... did I miss something?
>
> When I said "support device_add" I really meant "does not have
> cannot_instantiate_with_device_add_yet", but spapr-vlan should pass that
> test.
Ah, ok, that makes more sense... anyway, "-device ?" also lists some
devices like "ne2k_isa", ""usb-bt-dongle" and "vmxnet3" ... I somewhat
doubt that we want to have these in the list of "-net nic" supported
devices, too.
... hmmm, by the way, why the heck do we have vmxnet3 on powerpc? Does
that make sense at all?
>>>>> The thing is, people are still running QEMU from the command line.
>>>>>
>>>>> "-net nic -net bridge,br=virbr0" is still much less of a mouthful than
>>>>> "-netdev bridge,br=virbr0,id=br -device rtl8139,netdev=br" if all I want
>>>>> is something I can ssh into.
>>>>>
>>>>> It's easy to deprecate things. It's hard to convince users that it's
>>>>> worth, and you haven't convinced this user. :)
Just another idea before we drop this topic again completely: What if
we'd extend "-netdev" to be easier to use, too. For example, if you'd
just specify "-netdev bridge,br=virbr0", without using an id and without
specifying a "-device", you would get the netdev hooked up to the
board's default NIC automatically. That would be even less to type than
your example with "-net" since you would not need the "-net nic"
parameter in that case... Would it then be ok to deprecate the "-net"
option?
Thomas
- [Qemu-devel] [PATCH] net: Inform the user about deprecated -net options, Thomas Huth, 2015/12/15
- Re: [Qemu-devel] [PATCH] net: Inform the user about deprecated -net options, Paolo Bonzini, 2015/12/15
- Re: [Qemu-devel] [PATCH] net: Inform the user about deprecated -net options, Thomas Huth, 2015/12/15
- Re: [Qemu-devel] [PATCH] net: Inform the user about deprecated -net options, Paolo Bonzini, 2015/12/15
- Re: [Qemu-devel] [PATCH] net: Inform the user about deprecated -net options, Eric Blake, 2015/12/15
- Re: [Qemu-devel] [PATCH] net: Inform the user about deprecated -net options, Thomas Huth, 2015/12/15
- Re: [Qemu-devel] [PATCH] net: Inform the user about deprecated -net options, Paolo Bonzini, 2015/12/15
- Re: [Qemu-devel] [PATCH] net: Inform the user about deprecated -net options, Thomas Huth, 2015/12/15
- Re: [Qemu-devel] [PATCH] net: Inform the user about deprecated -net options, Paolo Bonzini, 2015/12/15
- Re: [Qemu-devel] [PATCH] net: Inform the user about deprecated -net options,
Thomas Huth <=
- Re: [Qemu-devel] [PATCH] net: Inform the user about deprecated -net options, Paolo Bonzini, 2015/12/16
Re: [Qemu-devel] [PATCH] net: Inform the user about deprecated -net options, Peter Maydell, 2015/12/15