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authorHadar Hen Zion <hadarh@mellanox.co.il>2012-07-05 04:03:50 +0000
committerDavid S. Miller <davem@davemloft.net>2012-07-07 16:23:06 -0700
commitcabdc8ee3768ceb6367e88c6fe84a66dd667bdf9 (patch)
tree9ff702eb373d3e2cb75c4f53a218b643ed43f248 /drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
parentnet/mlx4_en: Manage flow steering rules with ethtool (diff)
downloadlinux-dev-cabdc8ee3768ceb6367e88c6fe84a66dd667bdf9.tar.xz
linux-dev-cabdc8ee3768ceb6367e88c6fe84a66dd667bdf9.zip
net/mlx4_en: Add support for drop action through ethtool
The drop action is implemented by allocating a QP and keeping it in a reset state such that the HW drops any packets which are steered to that QP. When a drop action is requested, we attach the relevant flow to that QP. Sign-off-by: Hadar Hen Zion <hadarh@mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/mlx4_en.h')
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/mlx4_en.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
index 8882e70493fe..a12632150b34 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -500,6 +500,7 @@ struct mlx4_en_priv {
struct mlx4_en_rx_ring rx_ring[MAX_RX_RINGS];
struct mlx4_en_cq *tx_cq;
struct mlx4_en_cq rx_cq[MAX_RX_RINGS];
+ struct mlx4_qp drop_qp;
struct work_struct mcast_task;
struct work_struct mac_task;
struct work_struct watchdog_task;
@@ -586,6 +587,8 @@ void mlx4_en_unmap_buffer(struct mlx4_buf *buf);
void mlx4_en_calc_rx_buf(struct net_device *dev);
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_create_drop_qp(struct mlx4_en_priv *priv);
+void mlx4_en_destroy_drop_qp(struct mlx4_en_priv *priv);
int mlx4_en_free_tx_buf(struct net_device *dev, struct mlx4_en_tx_ring *ring);
void mlx4_en_rx_irq(struct mlx4_cq *mcq);