[PATCH v2 1/6] dma/ioat: fix device stop if no copies done

[Kevin Laatz]

On 16/01/2023 17:37, Bruce Richardson wrote:
> The HW DMA devices supported by IOAT driver do not transition to
> the "active" state until the first operation is started by the HW.
> Therefore, if the user calls "rte_dma_stop()" on a device without
> triggering any operations, the sequence of commands to be sent to
> the HW is different, as is the final device state.
>
> Update the IOAT driver "stop" function to take account of this
> difference.
>
> Fixes: 583f046dd404 ("dma/ioat: add start and stop")
> Cc: conor.walsh at intel.com
> Cc: stable at dpdk.org
>
> Signed-off-by: Bruce Richardson <bruce.richardson at intel.com>
> ---
>   drivers/dma/ioat/ioat_dmadev.c | 19 +++++++++++++++----
>   1 file changed, 15 insertions(+), 4 deletions(-)
>
Acked-by: Kevin Laatz <kevin.laatz at intel.com>