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mlx4: rx_headroom is a per port attribute

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No need to duplicate it per RX queue / frags.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2017-03-08 08:17:09 -08:00 committed by David S. Miller
parent aaca121dd6
commit d85f6c14e9
2 changed files with 4 additions and 4 deletions
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6
drivers/net/ethernet/mellanox/mlx4/en_rx.c
View File

@ -115,7 +115,7 @@ static int mlx4_en_alloc_frags(struct mlx4_en_priv *priv,
for (i = 0; i < priv->num_frags; i++) {
frags[i] = ring_alloc[i];
frags[i].page_offset += priv->frag_info[i].rx_headroom;
frags[i].page_offset += priv->rx_headroom;
rx_desc->data[i].addr = cpu_to_be64(frags[i].dma +
frags[i].page_offset);
ring_alloc[i] = page_alloc[i];
@ -1202,7 +1202,7 @@ void mlx4_en_calc_rx_buf(struct net_device *dev)
*/
priv->frag_info[0].frag_stride = PAGE_SIZE;
priv->dma_dir = PCI_DMA_BIDIRECTIONAL;
priv->frag_info[0].rx_headroom = XDP_PACKET_HEADROOM;
priv->rx_headroom = XDP_PACKET_HEADROOM;
i = 1;
} else {
int buf_size = 0;
@ -1214,12 +1214,12 @@ 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].rx_headroom = 0;
buf_size += priv->frag_info[i].frag_size;
i++;
}
priv->rx_page_order = MLX4_EN_ALLOC_PREFER_ORDER;
priv->dma_dir = PCI_DMA_FROMDEVICE;
priv->rx_headroom = 0;
}
priv->num_frags = i;

2
drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
View File

@ -472,7 +472,6 @@ struct mlx4_en_mc_list {
struct mlx4_en_frag_info {
u16 frag_size;
u16 rx_headroom;
u32 frag_stride;
};
@ -585,6 +584,7 @@ struct mlx4_en_priv {
u8 log_rx_info;
u8 dma_dir;
u8 rx_page_order;
u16 rx_headroom;
struct mlx4_en_tx_ring **tx_ring[MLX4_EN_NUM_TX_TYPES];
struct mlx4_en_rx_ring *rx_ring[MAX_RX_RINGS];