Re: [PATCH v5 13/15] net/xsc: add basic stats ops

[Stephen Hemminger <stephen@networkplumber.org>]

On Tue, 07 Jan 2025 10:50:09 +0800
"WanRenyong" <wanry@yunsilicon.com> wrote:

> Implement xsc ethdev basic statatics ops.
> 
> Signed-off-by: WanRenyong <wanry@yunsilicon.com>
> ---
>  doc/guides/nics/features/xsc.ini |  1 +
>  drivers/net/xsc/xsc_ethdev.c     | 75 ++++++++++++++++++++++++++++++++
>  2 files changed, 76 insertions(+)
> 
> diff --git a/doc/guides/nics/features/xsc.ini b/doc/guides/nics/features/xsc.ini
> index 772c6418c4..eb88517104 100644
> --- a/doc/guides/nics/features/xsc.ini
> +++ b/doc/guides/nics/features/xsc.ini
> @@ -11,6 +11,7 @@ L3 checksum offload  = Y
>  L4 checksum offload  = Y
>  Inner L3 checksum    = Y
>  Inner L4 checksum    = Y
> +Basic stats          = Y
>  Linux                = Y
>  ARMv8                = Y
>  x86-64               = Y

The driver is also doing per-queue stats.
Mind of I just add that here as well.

The definition of what that means was updated to be:

Stats per queue
---------------

Supports per queue stats: q_ipackets, q_opackets, q_ibytes, q_obytes, q_errors.
Statistics only supplied for first ``RTE_ETHDEV_QUEUE_STAT_CNTRS`` (16) queues.


> diff --git a/drivers/net/xsc/xsc_ethdev.c b/drivers/net/xsc/xsc_ethdev.c
> index 9cfb07b023..000e27222d 100644
> --- a/drivers/net/xsc/xsc_ethdev.c
> +++ b/drivers/net/xsc/xsc_ethdev.c
> @@ -444,6 +444,79 @@ xsc_ethdev_tx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc,
>  	return 0;
>  }
>  
> +static int
> +xsc_ethdev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
> +{
> +	struct xsc_ethdev_priv *priv = TO_XSC_ETHDEV_PRIV(dev);
> +	uint32_t rxqs_n = priv->num_rq;
> +	uint32_t txqs_n = priv->num_sq;
> +	uint32_t i, idx;
> +	struct xsc_rxq_data *rxq;
> +	struct xsc_txq_data *txq;
> +
> +	for (i = 0; i < rxqs_n; ++i) {
> +		rxq = xsc_rxq_get(priv, i);
> +		if (unlikely(rxq == NULL))
> +			continue;
> +
> +		idx = rxq->idx;
> +		if (idx < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
> +			stats->q_ipackets[idx] += rxq->stats.rx_pkts;
> +			stats->q_ibytes[idx] += rxq->stats.rx_bytes;
> +			stats->q_errors[idx] += (rxq->stats.rx_errors +
> +						 rxq->stats.rx_nombuf);

Paren not needed here, but ok.