Re: [PATCH net-next v2 2/3] net: dpaa2-mac: retrieve MAC statistics in one firmware command

From: Jakub Kicinski

Date: Mon Mar 16 2026 - 23:45:28 EST


On Thu, 12 Mar 2026 16:22:48 +0200 Ioana Ciornei wrote:
> + stats->values_dma_mem = kcalloc(num_stats, sizeof(u64), GFP_KERNEL);
> + if (!stats->values_dma_mem)
> + goto err_alloc_values;
> +
> + cnt_idx = stats->idx_dma_mem;
> + for (size_t i = 0; i < num_stats; i++)
> + *cnt_idx++ = cpu_to_le32((u32)(counters[i].id));
> +
> + stats->idx_iova = dma_map_single(dev, stats->idx_dma_mem,
> + num_stats * sizeof(u32),
> + DMA_TO_DEVICE);
> + if (dma_mapping_error(dev, stats->idx_iova))

dma_alloc_noncoherent(), maybe ?