> -----Original Message-----
> From: Qiming Yang <qiming.y...@intel.com>
> Sent: Friday, December 16, 2022 11:12 AM
> To: dev@dpdk.org; Xing, Beilei <beilei.x...@intel.com>
> Cc: Yang, Qiming <qiming.y...@intel.com>
> Subject: [PATCH] net/i40e: reduce the ITR interval of multi-driver mode
>
> This patch change the interrupt interval from 8160us to 32us to improve the
> performance of multi-driver mode.
>
> Signed-off-by: Qiming Yang <qiming.y...@intel.com>
Acked-by: Qi Zhang <qi.z.zh...@intel.com>
Applied to dpdk-next-net-intel.
The patch also looks good for backporting, so added Cc stable tag.
Thanks
Qi
> ---
> drivers/net/i40e/i40e_ethdev.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h
> index fe943a45ff..7c4cc44a27 100644
> --- a/drivers/net/i40e/i40e_ethdev.h
> +++ b/drivers/net/i40e/i40e_ethdev.h
> @@ -1497,7 +1497,7 @@ i40e_calc_itr_interval(bool is_pf, bool is_multi_drv)
> uint16_t interval = 0;
>
> if (is_multi_drv) {
> - interval = I40E_QUEUE_ITR_INTERVAL_MAX;
> + interval = I40E_QUEUE_ITR_INTERVAL_DEFAULT;
> } else {
> if (is_pf)
> interval = I40E_QUEUE_ITR_INTERVAL_DEFAULT;
> --
> 2.25.1
