[dpdk-dev] [PATCH v2] lib/librte_sched: fix update tc_credits

[Stephen Hemminger]

On Thu, 29 Jun 2017 16:35:42 +0200
Olivier Chirossel <olivier.chirossel at gmail.com> wrote:

>  	/* Subport TCs */
>  	if (unlikely(port->time >= subport->tc_time)) {
> -		subport->tc_credits[0] = subport->tc_credits_per_period[0];
> -		subport->tc_credits[1] = subport->tc_credits_per_period[1];
> -		subport->tc_credits[2] = subport->tc_credits_per_period[2];
> -		subport->tc_credits[3] = subport->tc_credits_per_period[3];
> +	        for (j = 0; j < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; j++) {
> +		       if ((subport->tc_credits[j] + subport->tc_credits_per_period[j]) < subport->tc_rate[j]) {
> +	                      subport->tc_credits[j] += subport->tc_credits_per_period[j];
> +		       }
> +		       else {
> +			      subport->tc_credits[j] = subport->tc_rate[j];
> +		       }
> +		}

The loop was manually unrolled for speed.