[dpdk-dev] [PATCH 4/5] net/netvsc: implement link state change callback

[Gaëtan Rivet]

Hi Stephen,

On Thu, Aug 30, 2018 at 03:35:11PM -0700, Stephen Hemminger wrote:
> From: Stephen Hemminger <sthemmin at microsoft.com>
> 
> Implement callback functionality on link state changes.
> This is not really driven off of interrupt file descriptor like most other
> PMD's. Instead, it happens when a link state change message arrives
> in the common ring buffer.
> 

Does this mean that the lsc event will be processed in a dataplane
thread? Looking at the _rte_eth_dev_callback_process() call, it seems
so.

Shouldn't this be executed in the context of the eal-intr-thread
instead? This thread is marked control and should be configured with the
proper afinity, unless dataplane threads.

Maybe I missed something, it's just to double-check that this will
behave nicely with applications relying on the eal-intr-thread afinity.

-- 
Gaëtan Rivet
6WIND