diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_tx.c | 49 | ||||
| -rw-r--r-- | include/linux/mlx5/device.h | 7 |
3 files changed, 53 insertions, 4 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h index 4cbd452fec25..2c20c7b14043 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h @@ -398,6 +398,7 @@ struct mlx5e_sq { u32 sqn; u16 bf_buf_size; u16 max_inline; + u8 min_inline_mode; u16 edge; struct device *pdev; struct mlx5e_tstamp *tstamp; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c index 5740b465ef84..e073bf59890d 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c @@ -128,6 +128,50 @@ u16 mlx5e_select_queue(struct net_device *dev, struct sk_buff *skb, return priv->channeltc_to_txq_map[channel_ix][up]; } +static inline int mlx5e_skb_l2_header_offset(struct sk_buff *skb) +{ +#define MLX5E_MIN_INLINE (ETH_HLEN + VLAN_HLEN) + + return max(skb_network_offset(skb), MLX5E_MIN_INLINE); +} + +static inline int mlx5e_skb_l3_header_offset(struct sk_buff *skb) +{ + struct flow_keys keys; + + if (skb_transport_header_was_set(skb)) + return skb_transport_offset(skb); + else if (skb_flow_dissect_flow_keys(skb, &keys, 0)) + return keys.control.thoff; + else + return mlx5e_skb_l2_header_offset(skb); +} + +static inline unsigned int mlx5e_calc_min_inline(enum mlx5_inline_modes mode, + struct sk_buff *skb) +{ + int hlen; + + switch (mode) { + case MLX5_INLINE_MODE_TCP_UDP: + hlen = eth_get_headlen(skb->data, skb_headlen(skb)); + if (hlen == ETH_HLEN && !skb_vlan_tag_present(skb)) + hlen += VLAN_HLEN; + return hlen; + case MLX5_INLINE_MODE_IP: + /* When transport header is set to zero, it means no transport + * header. When transport header is set to 0xff's, it means + * transport header wasn't set. + */ + if (skb_transport_offset(skb)) + return mlx5e_skb_l3_header_offset(skb); + /* fall through */ + case MLX5_INLINE_MODE_L2: + default: + return mlx5e_skb_l2_header_offset(skb); + } +} + static inline u16 mlx5e_get_inline_hdr_size(struct mlx5e_sq *sq, struct sk_buff *skb, bool bf) { @@ -135,8 +179,6 @@ static inline u16 mlx5e_get_inline_hdr_size(struct mlx5e_sq *sq, * headers and occur before the data gather. * Therefore these headers must be copied into the WQE */ -#define MLX5E_MIN_INLINE (ETH_HLEN + VLAN_HLEN) - if (bf) { u16 ihs = skb_headlen(skb); @@ -146,8 +188,7 @@ static inline u16 mlx5e_get_inline_hdr_size(struct mlx5e_sq *sq, if (ihs <= sq->max_inline) return skb_headlen(skb); } - - return max(skb_network_offset(skb), MLX5E_MIN_INLINE); + return mlx5e_calc_min_inline(sq->min_inline_mode, skb); } static inline void mlx5e_tx_skb_pull_inline(unsigned char **skb_data, diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h index e0a3ed758287..0b6d15cddb2f 100644 --- a/include/linux/mlx5/device.h +++ b/include/linux/mlx5/device.h @@ -129,6 +129,13 @@ __mlx5_mask(typ, fld)) tmp; \ }) +enum mlx5_inline_modes { + MLX5_INLINE_MODE_NONE, + MLX5_INLINE_MODE_L2, + MLX5_INLINE_MODE_IP, + MLX5_INLINE_MODE_TCP_UDP, +}; + enum { MLX5_MAX_COMMANDS = 32, MLX5_CMD_DATA_BLOCK_SIZE = 512, |