-static int mlx5e_alloc_rx_linear_mpwqe(struct mlx5e_rq *rq,
- struct mlx5e_rx_wqe *wqe,
- u16 ix)
-{
- struct mlx5e_mpw_info *wi = &rq->wqe_info[ix];
- gfp_t gfp_mask;
- int i;
-
- gfp_mask = GFP_ATOMIC | __GFP_COLD | __GFP_MEMALLOC;
- wi->dma_info.page = alloc_pages_node(NUMA_NO_NODE, gfp_mask,
- MLX5_MPWRQ_WQE_PAGE_ORDER);
- if (unlikely(!wi->dma_info.page))
- return -ENOMEM;
-
- wi->dma_info.addr = dma_map_page(rq->pdev, wi->dma_info.page, 0,
- rq->wqe_sz, PCI_DMA_FROMDEVICE);
- if (unlikely(dma_mapping_error(rq->pdev, wi->dma_info.addr))) {
- put_page(wi->dma_info.page);
- return -ENOMEM;
- }
-
- /* We split the high-order page into order-0 ones and manage their
- * reference counter to minimize the memory held by small skb fragments
- */
- split_page(wi->dma_info.page, MLX5_MPWRQ_WQE_PAGE_ORDER);
- for (i = 0; i < MLX5_MPWRQ_PAGES_PER_WQE; i++) {
- page_ref_add(&wi->dma_info.page[i],
- mlx5e_mpwqe_strides_per_page(rq));
- wi->skbs_frags[i] = 0;
- }
-
- wi->consumed_strides = 0;
- wi->dma_pre_sync = mlx5e_dma_pre_sync_linear_mpwqe;
- wi->add_skb_frag = mlx5e_add_skb_frag_linear_mpwqe;
- wi->copy_skb_header = mlx5e_copy_skb_header_linear_mpwqe;
- wi->free_wqe = mlx5e_free_rx_linear_mpwqe;
- wqe->data.lkey = rq->mkey_be;
- wqe->data.addr = cpu_to_be64(wi->dma_info.addr);
-
- return 0;
-}
-
-void mlx5e_free_rx_linear_mpwqe(struct mlx5e_rq *rq,
- struct mlx5e_mpw_info *wi)
-{
- int i;
-
- dma_unmap_page(rq->pdev, wi->dma_info.addr, rq->wqe_sz,
- PCI_DMA_FROMDEVICE);
- for (i = 0; i < MLX5_MPWRQ_PAGES_PER_WQE; i++) {
- page_ref_sub(&wi->dma_info.page[i],
- mlx5e_mpwqe_strides_per_page(rq) - wi->skbs_frags[i]);
- put_page(&wi->dma_info.page[i]);
- }
-}
-
-int mlx5e_alloc_rx_mpwqe(struct mlx5e_rq *rq, struct mlx5e_rx_wqe *wqe, u16 ix)