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| author | Yevgeny Petrilin <yevgenyp@mellanox.co.il> | 2009-06-01 23:24:07 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-06-02 02:29:06 -0700 |
| commit | f813cad836ab14b764cfe76f42a3b50bb9677b30 (patch) | |
| tree | ccaafb7bcaa72e737fb8939e0c556f2466bb0d7d /drivers/net/mlx4/mlx4_en.h | |
| parent | 3db36fb2c88d68ee28d20845d5bb805ea9a7f6d8 (diff) | |
| download | lwn-f813cad836ab14b764cfe76f42a3b50bb9677b30.tar.gz lwn-f813cad836ab14b764cfe76f42a3b50bb9677b30.zip | |
mlx4_en: multiqueue support
By default the driver opens 8 TX queues (defined by MLX4_EN_NUM_TX_RINGS).
If the driver is configured to support Per Priority Flow Control, we open
8 additional TX rings.
dev->real_num_tx_queues is always set to be MLX4_EN_NUM_TX_RINGS.
The mlx4_en_select_queue() function uses standard hashing (skb_tx_hash)
in case that PPFC is not supported or the skb contain a vlan tag,
otherwise the queue is selected according to vlan priority.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/mlx4/mlx4_en.h')
| -rw-r--r-- | drivers/net/mlx4/mlx4_en.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/net/mlx4/mlx4_en.h b/drivers/net/mlx4/mlx4_en.h index fcbfcfc11568..4de8db00809d 100644 --- a/drivers/net/mlx4/mlx4_en.h +++ b/drivers/net/mlx4/mlx4_en.h @@ -139,8 +139,10 @@ enum { #define MLX4_EN_MIN_RX_SIZE (MLX4_EN_ALLOC_SIZE / SMP_CACHE_BYTES) #define MLX4_EN_MIN_TX_SIZE (4096 / TXBB_SIZE) -#define MLX4_EN_TX_RING_NUM 9 -#define MLX4_EN_DEF_TX_RING_SIZE 1024 +#define MLX4_EN_SMALL_PKT_SIZE 64 +#define MLX4_EN_NUM_TX_RINGS 8 +#define MLX4_EN_NUM_PPP_RINGS 8 +#define MLX4_EN_DEF_TX_RING_SIZE 512 #define MLX4_EN_DEF_RX_RING_SIZE 1024 /* Target number of packets to coalesce with interrupt moderation */ @@ -478,7 +480,6 @@ struct mlx4_en_priv { int base_qpn; struct mlx4_en_rss_map rss_map; - u16 tx_prio_map[8]; u32 flags; #define MLX4_EN_FLAG_PROMISC 0x1 u32 tx_ring_num; @@ -526,6 +527,7 @@ int mlx4_en_arm_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq); void mlx4_en_poll_tx_cq(unsigned long data); void mlx4_en_tx_irq(struct mlx4_cq *mcq); +u16 mlx4_en_select_queue(struct net_device *dev, struct sk_buff *skb); int mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev); int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv, struct mlx4_en_tx_ring *ring, @@ -560,7 +562,6 @@ void mlx4_en_calc_rx_buf(struct net_device *dev); void mlx4_en_set_default_rss_map(struct mlx4_en_priv *priv, struct mlx4_en_rss_map *rss_map, int num_entries, int num_rings); -void mlx4_en_set_prio_map(struct mlx4_en_priv *priv, u16 *prio_map, u32 ring_num); int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv); void mlx4_en_release_rss_steer(struct mlx4_en_priv *priv); int mlx4_en_free_tx_buf(struct net_device *dev, struct mlx4_en_tx_ring *ring); |