struct xdp_umem *umem)
{
struct device *dev = priv->mdev->device;
- u32 i;
- for (i = 0; i < umem->npgs; i++) {
- dma_addr_t dma = dma_map_page(dev, umem->pgs[i], 0, PAGE_SIZE,
- DMA_BIDIRECTIONAL);
-
- if (unlikely(dma_mapping_error(dev, dma)))
- goto err_unmap;
- umem->pages[i].dma = dma;
- }
-
- return 0;
-
-err_unmap:
- while (i--) {
- dma_unmap_page(dev, umem->pages[i].dma, PAGE_SIZE,
- DMA_BIDIRECTIONAL);
- umem->pages[i].dma = 0;
- }
-
- return -ENOMEM;
+ return xsk_buff_dma_map(umem, dev, 0);
}
static void mlx5e_xsk_unmap_umem(struct mlx5e_priv *priv,
struct xdp_umem *umem)
{
- struct device *dev = priv->mdev->device;
- u32 i;
-
- for (i = 0; i < umem->npgs; i++) {
- dma_unmap_page(dev, umem->pages[i].dma, PAGE_SIZE,
- DMA_BIDIRECTIONAL);
- umem->pages[i].dma = 0;
- }
+ return xsk_buff_dma_unmap(umem, 0);
}
static int mlx5e_xsk_get_umems(struct mlx5e_xsk *xsk)
static bool mlx5e_xsk_is_umem_sane(struct xdp_umem *umem)
{
- return umem->headroom <= 0xffff && umem->chunk_size_nohr <= 0xffff;
+ return xsk_umem_get_headroom(umem) <= 0xffff &&
+ xsk_umem_get_chunk_size(umem) <= 0xffff;
}
void mlx5e_build_xsk_param(struct xdp_umem *umem, struct mlx5e_xsk_param *xsk)
{
- xsk->headroom = umem->headroom;
- xsk->chunk_size = umem->chunk_size_nohr + umem->headroom;
+ xsk->headroom = xsk_umem_get_headroom(umem);
+ xsk->chunk_size = xsk_umem_get_chunk_size(umem);
}
static int mlx5e_xsk_enable_locked(struct mlx5e_priv *priv,
mlx5e_xsk_disable_umem(priv, ix);
}
-int mlx5e_xsk_resize_reuseq(struct xdp_umem *umem, u32 nentries)
-{
- struct xdp_umem_fq_reuse *reuseq;
-
- reuseq = xsk_reuseq_prepare(nentries);
- if (unlikely(!reuseq))
- return -ENOMEM;
- xsk_reuseq_free(xsk_reuseq_swap(umem, reuseq));
-
- return 0;
-}
-
u16 mlx5e_xsk_first_unused_channel(struct mlx5e_params *params, struct mlx5e_xsk *xsk)
{
u16 res = xsk->refcnt ? params->num_channels : 0;