@@ -72,7 +72,7 @@ static int mlx4_alloc_pages(struct mlx4_en_priv *priv,
return -ENOMEM;
}
dma = dma_map_page(priv->ddev, page, 0, PAGE_SIZE << order,
- frag_info->dma_dir);
+ priv->dma_dir);
if (unlikely(dma_mapping_error(priv->ddev, dma))) {
put_page(page);
return -ENOMEM;
@@ -128,7 +128,7 @@ static int mlx4_en_alloc_frags(struct mlx4_en_priv *priv,
if (page_alloc[i].page != ring_alloc[i].page) {
dma_unmap_page(priv->ddev, page_alloc[i].dma,
page_alloc[i].page_size,
- priv->frag_info[i].dma_dir);
+ priv->dma_dir);
page = page_alloc[i].page;
/* Revert changes done by mlx4_alloc_pages */
page_ref_sub(page, page_alloc[i].page_size /
@@ -149,7 +149,7 @@ static void mlx4_en_free_frag(struct mlx4_en_priv *priv,
if (next_frag_end > frags[i].page_size)
dma_unmap_page(priv->ddev, frags[i].dma, frags[i].page_size,
- frag_info->dma_dir);
+ priv->dma_dir);
if (frags[i].page)
put_page(frags[i].page);
@@ -181,7 +181,7 @@ static int mlx4_en_init_allocator(struct mlx4_en_priv *priv,
page_alloc = &ring->page_alloc[i];
dma_unmap_page(priv->ddev, page_alloc->dma,
page_alloc->page_size,
- priv->frag_info[i].dma_dir);
+ priv->dma_dir);
page = page_alloc->page;
/* Revert changes done by mlx4_alloc_pages */
page_ref_sub(page, page_alloc->page_size /
@@ -206,7 +206,7 @@ static void mlx4_en_destroy_allocator(struct mlx4_en_priv *priv,
i, page_count(page_alloc->page));
dma_unmap_page(priv->ddev, page_alloc->dma,
- page_alloc->page_size, frag_info->dma_dir);
+ page_alloc->page_size, priv->dma_dir);
while (page_alloc->page_offset + frag_info->frag_stride <
page_alloc->page_size) {
put_page(page_alloc->page);
@@ -567,7 +567,7 @@ void mlx4_en_deactivate_rx_ring(struct mlx4_en_priv *priv,
struct mlx4_en_rx_alloc *frame = &ring->page_cache.buf[i];
dma_unmap_page(priv->ddev, frame->dma, frame->page_size,
- priv->frag_info[0].dma_dir);
+ priv->dma_dir);
put_page(frame->page);
}
ring->page_cache.index = 0;
@@ -1199,7 +1199,7 @@ void mlx4_en_calc_rx_buf(struct net_device *dev)
* expense of more costly truesize accounting
*/
priv->frag_info[0].frag_stride = PAGE_SIZE;
- priv->frag_info[0].dma_dir = PCI_DMA_BIDIRECTIONAL;
+ priv->dma_dir = PCI_DMA_BIDIRECTIONAL;
priv->frag_info[0].rx_headroom = XDP_PACKET_HEADROOM;
i = 1;
} else {
@@ -1214,11 +1214,11 @@ void mlx4_en_calc_rx_buf(struct net_device *dev)
priv->frag_info[i].frag_stride =
ALIGN(priv->frag_info[i].frag_size,
SMP_CACHE_BYTES);
- priv->frag_info[i].dma_dir = PCI_DMA_FROMDEVICE;
priv->frag_info[i].rx_headroom = 0;
buf_size += priv->frag_info[i].frag_size;
i++;
}
+ priv->dma_dir = PCI_DMA_FROMDEVICE;
}
priv->num_frags = i;
@@ -360,7 +360,7 @@ u32 mlx4_en_recycle_tx_desc(struct mlx4_en_priv *priv,
if (!mlx4_en_rx_recycle(ring->recycle_ring, &frame)) {
dma_unmap_page(priv->ddev, tx_info->map0_dma,
- PAGE_SIZE, priv->frag_info[0].dma_dir);
+ PAGE_SIZE, priv->dma_dir);
put_page(tx_info->page);
}
@@ -474,7 +474,6 @@ struct mlx4_en_frag_info {
u16 frag_size;
u16 frag_prefix_size;
u32 frag_stride;
- enum dma_data_direction dma_dir;
u16 order;
u16 rx_headroom;
};
@@ -584,8 +583,9 @@ struct mlx4_en_priv {
u32 rx_ring_num;
u32 rx_skb_size;
struct mlx4_en_frag_info frag_info[MLX4_EN_MAX_RX_FRAGS];
- u16 num_frags;
- u16 log_rx_info;
+ u8 num_frags;
+ u8 log_rx_info;
+ u8 dma_dir;
struct mlx4_en_tx_ring **tx_ring[MLX4_EN_NUM_TX_TYPES];
struct mlx4_en_rx_ring *rx_ring[MAX_RX_RINGS];
No need to duplicate it for all queues and frags. num_frags & log_rx_info become u8 to save space. u8 accesses are a bit faster than u16 anyway. Signed-off-by: Eric Dumazet <edumazet@google.com> --- drivers/net/ethernet/mellanox/mlx4/en_rx.c | 16 ++++++++-------- drivers/net/ethernet/mellanox/mlx4/en_tx.c | 2 +- drivers/net/ethernet/mellanox/mlx4/mlx4_en.h | 6 +++--- 3 files changed, 12 insertions(+), 12 deletions(-)