[dpdk-dev] [PATCH v3 3/4] bonding: take queue spinlock in rx/tx burst functions

[Bruce Richardson]

On Sun, Jun 12, 2016 at 06:11:28PM +0100, Bernard Iremonger wrote:
> Use rte_spinlock_trylock() in the rx/tx burst functions to
> take the queue spinlock.
> 
> Signed-off-by: Bernard Iremonger <bernard.iremonger at intel.com>
> Acked-by: Konstantin Ananyev <konstantin.ananyev at intel.com>
> ---

Why does this particular PMD need spinlocks when doing RX and TX, while other
device types do not? How is adding/removing devices from a bonded device different
to other control operations that can be done on physical PMDs? Is this not
similar to say bringing down or hotplugging out a physical port just before an
RX or TX operation takes place?
For all other PMDs we rely on the app to synchronise control and data plane
operation - why not here? 

/Bruce