[dpdk-dev] [PATCH v9 0/7] hotplug failure handle mechanism

[Jeff Guo]

On 7/11/2018 11:46 PM, Stephen Hemminger wrote:
> On Wed, 11 Jul 2018 18:41:50 +0800
> Jeff Guo <jia.guo at intel.com> wrote:
>
>> As we know, hot plug is an importance feature, either use for the datacenter
>> device’s fail-safe, or use for SRIOV Live Migration in SDN/NFV. It could bring
>> the higher flexibility and continuality to the networking services in multiple
>> use cases in industry. So let we see, dpdk as an importance networking
>> framework, what can it help to implement hot plug solution for users.
>>
>> We already have a general device event detect mechanism, failsafe driver,
>> bonding driver and hot plug/unplug api in framework, app could use these to
>> develop their hot plug solution.
> I like seeing a better solution to hot plug. But it is worth mentioning
> that for the Hyper-V netvsc driver this is mostly unnecessary. The Hyper-V
> host notifies the network driver directly about availability of SRIOV
> device, and the netvsc device driver can use that to do its own VF
> management. It doesn't really need (or want) to be using a general
> PCI solution.

I am not sure about Hyper-v netvsc driver, but i am very interesting to 
deep analyze it to find what could let we find a best solution for 
hotplug. But since some customer, who like me still not have chance to 
use Hyper-v, they will encounter the hotplug issue when use kvm or other 
platform.
so  let we said that the topic about here is aim to fix the issue for 
that part of customer or developer.  Just let hotplug be used more in 
diversity scenario.