[dpdk-dev] [PATCH 2/8] net/bnxt: add support for rx_queue_count

[Ferruh Yigit]

On 8/24/2017 5:29 PM, Ajit Khaparde wrote:
> add support for rx_queue_count dev_op
> Signed-off-by: Ajit Khaparde <ajit.khaparde at broadcom.com>

<...>

> +static uint32_t
> +bnxt_rx_queue_count_op(struct rte_eth_dev *dev, uint16_t rx_queue_id)
> +{
> +	uint32_t desc = 0, raw_cons = 0, cons;
> +	struct bnxt_cp_ring_info *cpr;
> +	struct bnxt_rx_queue *rxq;
> +	struct rx_pkt_cmpl *rxcmp;
> +
> +	rxq = dev->data->rx_queues[rx_queue_id];
> +	cpr = rxq->cp_ring;
> +
> +	while (raw_cons < rxq->nb_rx_desc) {
> +		cons = RING_CMP(cpr->cp_ring_struct, raw_cons++);
> +		rxcmp = (struct rx_pkt_cmpl *)&cpr->cp_desc_ring[cons];
> +
> +		if (CMP_VALID(rxcmp, raw_cons, cpr->cp_ring_struct))

"raw_cons" increased above, the "raw_cons" here and the one used to get
"cons" are different. Is this an issue for cmp_valid ?

> +			desc++;
> +	}
> +
> +	return desc;
> +}

<...>