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net/mlx5: Add sniffer namespaces 

Add sniffer TX and RX namespaces to receive ingoing and outgoing
traffic.

Each outgoing/incoming packet is duplicated and steered to the sniffer
TX/RX namespace in addition to the regular flow.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Maor Gottlieb 2016-06-06 18:09:35 +03:00 committed by Leon Romanovsky
parent cea824d416
commit 87d22483ce
3 changed files with 64 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

58
drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
View File

@ -1427,6 +1427,16 @@ struct mlx5_flow_namespace *mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
return &steering->esw_ingress_root_ns->ns;
else
return NULL;
case MLX5_FLOW_NAMESPACE_SNIFFER_RX:
if (steering->sniffer_rx_root_ns)
return &steering->sniffer_rx_root_ns->ns;
else
return NULL;
case MLX5_FLOW_NAMESPACE_SNIFFER_TX:
if (steering->sniffer_tx_root_ns)
return &steering->sniffer_tx_root_ns->ns;
else
return NULL;
default:
return NULL;
}
@ -1726,10 +1736,46 @@ void mlx5_cleanup_fs(struct mlx5_core_dev *dev)
cleanup_root_ns(steering->esw_egress_root_ns);
cleanup_root_ns(steering->esw_ingress_root_ns);
cleanup_root_ns(steering->fdb_root_ns);
cleanup_root_ns(steering->sniffer_rx_root_ns);
cleanup_root_ns(steering->sniffer_tx_root_ns);
mlx5_cleanup_fc_stats(dev);
kfree(steering);
}
static int init_sniffer_tx_root_ns(struct mlx5_flow_steering *steering)
{
struct fs_prio *prio;
steering->sniffer_tx_root_ns = create_root_ns(steering, FS_FT_SNIFFER_TX);
if (!steering->sniffer_tx_root_ns)
return -ENOMEM;
/* Create single prio */
prio = fs_create_prio(&steering->sniffer_tx_root_ns->ns, 0, 1);
if (IS_ERR(prio)) {
cleanup_root_ns(steering->sniffer_tx_root_ns);
return PTR_ERR(prio);
}
return 0;
}
static int init_sniffer_rx_root_ns(struct mlx5_flow_steering *steering)
{
struct fs_prio *prio;
steering->sniffer_rx_root_ns = create_root_ns(steering, FS_FT_SNIFFER_RX);
if (!steering->sniffer_rx_root_ns)
return -ENOMEM;
/* Create single prio */
prio = fs_create_prio(&steering->sniffer_rx_root_ns->ns, 0, 1);
if (IS_ERR(prio)) {
cleanup_root_ns(steering->sniffer_rx_root_ns);
return PTR_ERR(prio);
}
return 0;
}
static int init_fdb_root_ns(struct mlx5_flow_steering *steering)
{
struct fs_prio *prio;
@ -1826,6 +1872,18 @@ int mlx5_init_fs(struct mlx5_core_dev *dev)
}
}
if (MLX5_CAP_FLOWTABLE_SNIFFER_RX(dev, ft_support)) {
err = init_sniffer_rx_root_ns(steering);
if (err)
goto err;
}
if (MLX5_CAP_FLOWTABLE_SNIFFER_TX(dev, ft_support)) {
err = init_sniffer_tx_root_ns(steering);
if (err)
goto err;
}
return 0;
err:
mlx5_cleanup_fs(dev);

4
drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
View File

@ -49,6 +49,8 @@ enum fs_flow_table_type {
FS_FT_ESW_EGRESS_ACL = 0x2,
FS_FT_ESW_INGRESS_ACL = 0x3,
FS_FT_FDB = 0X4,
FS_FT_SNIFFER_RX = 0X5,
FS_FT_SNIFFER_TX = 0X6,
};
enum fs_flow_table_op_mod {
@ -66,6 +68,8 @@ struct mlx5_flow_steering {
struct mlx5_flow_root_namespace *fdb_root_ns;
struct mlx5_flow_root_namespace *esw_egress_root_ns;
struct mlx5_flow_root_namespace *esw_ingress_root_ns;
struct mlx5_flow_root_namespace *sniffer_tx_root_ns;
struct mlx5_flow_root_namespace *sniffer_rx_root_ns;
};
struct fs_node {

2
include/linux/mlx5/fs.h
View File

@ -63,6 +63,8 @@ enum mlx5_flow_namespace_type {
MLX5_FLOW_NAMESPACE_FDB,
MLX5_FLOW_NAMESPACE_ESW_EGRESS,
MLX5_FLOW_NAMESPACE_ESW_INGRESS,
MLX5_FLOW_NAMESPACE_SNIFFER_RX,
MLX5_FLOW_NAMESPACE_SNIFFER_TX,
};
struct mlx5_flow_table;