[dpdk-stable] [dpdk-dev] [PATCH 02/29] net/ena/base: make allocation macros thread-safe

[Michał Krawczyk]

pt., 27 mar 2020 o 15:54 Stephen Hemminger
<stephen at networkplumber.org> napisał(a):
>
> On Fri, 27 Mar 2020 11:17:56 +0100
> Michal Krawczyk <mk at semihalf.com> wrote:
>
> > From: Igor Chauskin <igorch at amazon.com>
> >
> > Memory allocation region id could possibly be non-unique
> > due to non-atomic increment, causing allocation failure.
> >
> > Fixes: 9ba7981ec992 ("ena: add communication layer for DPDK")
> > Cc: stable at dpdk.org
> >
> > Signed-off-by: Igor Chauskin <igorch at amazon.com>
> > Reviewed-by: Michal Krawczyk <mk at semihalf.com>
> > Reviewed-by: Guy Tzalik <gtzalik at amazon.com>
>
> With DPDK all control operations are the device are supposed
> to be single threaded by the caller. Do you have an allocation in
> some datapath?

Currently, there aren't any allocations on the datapath. But if you
don't mind, we would like to keep the atomics there for future
robustness.