On Mon, Aug 3, 2015 at 9:59 PM, David Miller <da...@davemloft.net> wrote:
> From: Alexei Starovoitov <alexei.starovoi...@gmail.com>
> Date: Mon, 3 Aug 2015 21:23:40 -0700
>
>> On Mon, Aug 03, 2015 at 05:27:26PM -0700, Pravin B Shelar wrote:
>>> With addition of flow based tunneling, there is no need to
>>> have special GRE vport. Removes all of the OVS specific
>>> GRE code and make OVS use a ip_gre net_device.
>>> Minimal GRE vport is kept to handle compatibility with
>>> current userspace application.
>>>
>>> Signed-off-by: Pravin B Shelar <pshe...@nicira.com>
>> ...
>>> +#define GRE_TAP_FB_NAME "gretap0"
>> ...
>>> + /* fallback device is used for flow based tunneling. */
>>> + if (!strcmp(dev->name, GRE_TAP_FB_NAME)) {
>>> + struct ip_tunnel *t;
>>> +
>>> + t = netdev_priv(dev);
>>> + t->flow_based_tunnel = true;
>>> + eth_hw_addr_random(dev);
>>> + netif_keep_dst(dev);
>>> + }
>>> +
>>
>> feature detection based on netdev name?
>> meaning that there will be only one such device for the whole
>> host? and namespaces cannot have their own gre tunnels?
>> (since host 'gretap0' cannot be seen in netns)
>
> Doing anything like this by netdev name is wrong.
>
> Pravin you will need to do this in some other way.
>
ok, I will add API to create flow-based GRE device.
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