diff options
| author | Tariq Toukan <tariqt@mellanox.com> | 2016-04-20 22:02:16 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-04-21 22:09:05 +0300 |
| commit | c5adb96f6c4a22aceff2e8220612c5b9239ffeb2 (patch) | |
| tree | 4490cf2350bb15f561fe1509cc58712ed06c4681 /drivers/net | |
| parent | bc77b240b3c57236cdcc08d64ca390655d3a16ff (diff) | |
| download | linux-c5adb96f6c4a22aceff2e8220612c5b9239ffeb2.tar.xz | |
net/mlx5e: Use napi_alloc_skb for RX SKB allocations
Instead of netdev_alloc_skb, we use the napi_alloc_skb function
which is designated to allocate skbuff's for RX in a
channel-specific NAPI instance, and implies the IP packet alignment.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 4 | ||||
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_rx.c | 12 |
3 files changed, 7 insertions, 10 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h index c99fdff74c97..303e6cdf9fcd 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h @@ -93,7 +93,6 @@ #define MLX5E_SQ_BF_BUDGET 16 #define MLX5E_NUM_MAIN_GROUPS 9 -#define MLX5E_NET_IP_ALIGN 2 static inline u16 mlx5_min_rx_wqes(int wq_type, u32 wq_size) { diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index 942829e6d8ba..9b17bc064cc8 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -373,8 +373,8 @@ static int mlx5e_create_rq(struct mlx5e_channel *c, rq->wqe_sz = (priv->params.lro_en) ? priv->params.lro_wqe_sz : MLX5E_SW2HW_MTU(priv->netdev->mtu); - rq->wqe_sz = SKB_DATA_ALIGN(rq->wqe_sz + MLX5E_NET_IP_ALIGN); - byte_count = rq->wqe_sz - MLX5E_NET_IP_ALIGN; + rq->wqe_sz = SKB_DATA_ALIGN(rq->wqe_sz); + byte_count = rq->wqe_sz; byte_count |= MLX5_HW_START_PADDING; } diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c index d71919ccf912..5bdcc0b69f76 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c @@ -47,7 +47,7 @@ int mlx5e_alloc_rx_wqe(struct mlx5e_rq *rq, struct mlx5e_rx_wqe *wqe, u16 ix) struct sk_buff *skb; dma_addr_t dma_addr; - skb = netdev_alloc_skb(rq->netdev, rq->wqe_sz); + skb = napi_alloc_skb(rq->cq.napi, rq->wqe_sz); if (unlikely(!skb)) return -ENOMEM; @@ -61,10 +61,8 @@ int mlx5e_alloc_rx_wqe(struct mlx5e_rq *rq, struct mlx5e_rx_wqe *wqe, u16 ix) if (unlikely(dma_mapping_error(rq->pdev, dma_addr))) goto err_free_skb; - skb_reserve(skb, MLX5E_NET_IP_ALIGN); - *((dma_addr_t *)skb->cb) = dma_addr; - wqe->data.addr = cpu_to_be64(dma_addr + MLX5E_NET_IP_ALIGN); + wqe->data.addr = cpu_to_be64(dma_addr); wqe->data.lkey = rq->mkey_be; rq->skb[ix] = skb; @@ -701,9 +699,9 @@ void mlx5e_handle_rx_cqe_mpwrq(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe) goto mpwrq_cqe_out; } - skb = netdev_alloc_skb(rq->netdev, - ALIGN(MLX5_MPWRQ_SMALL_PACKET_THRESHOLD, - sizeof(long))); + skb = napi_alloc_skb(rq->cq.napi, + ALIGN(MLX5_MPWRQ_SMALL_PACKET_THRESHOLD, + sizeof(long))); if (unlikely(!skb)) goto mpwrq_cqe_out; |