[dpdk-stable] [PATCH] raw/ioat: fix missing ring pointer reset

[Bruce Richardson]

On Thu, Jun 17, 2021 at 02:18:15PM +0000, Kevin Laatz wrote:
> In the event of a device reconfigure, "hdls_avail" is not being reset. This
> can lead to miscalculations in rte_ioat_completed_ops(), causing the
> function to report an incorrect amount of completed operations. This patch
> fixes the issue by resetting "hdls_avail" during the device configure.
> 
> Fixes: 74464005a2af ("raw/ioat: rework SW ring layout")
> 
> Signed-off-by: Kevin Laatz <kevin.laatz at intel.com>
> ---
To catch more of these reconfigure issues, we should look to add an
appropriate unit test.

Acked-by: Bruce Richardson <bruce.richardson at intel.com>