On Tue, Nov 23, 2021 at 05:39:36PM +0100, Alexander Lobakin wrote:
> + for_each_possible_cpu(cpu) {
> + const struct mvneta_pcpu_stats *stats;
> + const struct mvneta_stats *ps;
> + u64 xdp_xmit_err;
> + u64 xdp_redirect;
> + u64 xdp_tx_err;
> + u64 xdp_pass;
> + u64 xdp_drop;
> + u64 xdp_xmit;
> + u64 xdp_tx;
> + u32 start;
> +
> + stats = per_cpu_ptr(pp->stats, cpu);
> + ps = &stats->es.ps;
> +
> + do {
> + start = u64_stats_fetch_begin_irq(&stats->syncp);
> +
> + xdp_drop = ps->xdp_drop;
> + xdp_pass = ps->xdp_pass;
> + xdp_redirect = ps->xdp_redirect;
> + xdp_tx = ps->xdp_tx;
> + xdp_tx_err = ps->xdp_tx_err;
> + xdp_xmit = ps->xdp_xmit;
> + xdp_xmit_err = ps->xdp_xmit_err;
> + } while (u64_stats_fetch_retry_irq(&stats->syncp, start));
> +
> + xdp_stats->drop += xdp_drop;
> + xdp_stats->pass += xdp_pass;
> + xdp_stats->redirect += xdp_redirect;
> + xdp_stats->tx += xdp_tx;
> + xdp_stats->tx_errors += xdp_tx_err;
> + xdp_stats->xmit_packets += xdp_xmit;
> + xdp_stats->xmit_errors += xdp_xmit_err;
Same comment as for mvpp2 - this could share a lot of code from
mvneta_ethtool_update_pcpu_stats() (although it means we end up
calculating a little more for the alloc error and refill error
that this API doesn't need) but I think sharing that code would be
a good idea.
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