net/mlx4: Implement promiscuous mode with device managed flow-steering

The device managed flow steering API has three promiscuous modes:

1. Uplink - captures all the packets that arrive to the port.
2. Allmulti - captures all multicast packets arriving to the port.
3. Function port - for future use, this mode is not implemented yet.

Use these modes with the flow_attach and flow_detach firmware commands
according to the promiscuous state of the netdevice.

Signed-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>

1 files changed, 7 insertions, 0 deletions

diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index e45fc20bd01f..6f0d133cc7ad 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -542,6 +542,8 @@ struct mlx4_dev {
         u8                      rev_id;
         char                    board_id[MLX4_BOARD_ID_LEN];
         int                     num_vfs;
+        u64                     regid_promisc_array[MLX4_MAX_PORTS + 1];
+        u64                     regid_allmulti_array[MLX4_MAX_PORTS + 1];
 };
 
 struct mlx4_init_port_param {
@@ -681,6 +683,7 @@ enum mlx4_net_trans_rule_id {
 enum mlx4_net_trans_promisc_mode {
         MLX4_FS_PROMISC_NONE = 0,
         MLX4_FS_PROMISC_UPLINK,
+        /* For future use. Not implemented yet */
         MLX4_FS_PROMISC_FUNCTION_PORT,
         MLX4_FS_PROMISC_ALL_MULTI,
 };
@@ -744,6 +747,10 @@ struct mlx4_net_trans_rule {
         u32     qpn;
 };
 
+int mlx4_flow_steer_promisc_add(struct mlx4_dev *dev, u8 port, u32 qpn,
+                                enum mlx4_net_trans_promisc_mode mode);
+int mlx4_flow_steer_promisc_remove(struct mlx4_dev *dev, u8 port,
+                                   enum mlx4_net_trans_promisc_mode mode);
 int mlx4_multicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port);
 int mlx4_multicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port);
 int mlx4_unicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port);