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net/mlx5: Add support in RDMA RX steering

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Add new flow steering namespace - MLX5_FLOW_NAMESPACE_RDMA_RX.
Flow steering rules in this namespace are used to filter
RDMA traffic.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Maor Gottlieb 2019-04-29 18:14:12 +00:00 committed by Saeed Mahameed
parent ae288a4875
commit d83eb50e29
6 changed files with 38 additions and 1 deletions
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1
drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
View file

@ -854,6 +854,7 @@ const struct mlx5_flow_cmds *mlx5_fs_cmd_get_default(enum fs_flow_table_type typ
case FS_FT_SNIFFER_RX:
case FS_FT_SNIFFER_TX:
case FS_FT_NIC_TX:
case FS_FT_RDMA_RX:
return mlx5_fs_cmd_get_fw_cmds();
default:
return mlx5_fs_cmd_get_stub_cmds();

27
drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
View file

@ -2054,6 +2054,10 @@ struct mlx5_flow_namespace *mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
if (steering->sniffer_tx_root_ns)
return &steering->sniffer_tx_root_ns->ns;
return NULL;
case MLX5_FLOW_NAMESPACE_RDMA_RX:
if (steering->rdma_rx_root_ns)
return &steering->rdma_rx_root_ns->ns;
return NULL;
default:
break;
}
@ -2450,6 +2454,7 @@ void mlx5_cleanup_fs(struct mlx5_core_dev *dev)
steering->fdb_sub_ns = NULL;
cleanup_root_ns(steering->sniffer_rx_root_ns);
cleanup_root_ns(steering->sniffer_tx_root_ns);
cleanup_root_ns(steering->rdma_rx_root_ns);
cleanup_root_ns(steering->egress_root_ns);
mlx5_cleanup_fc_stats(dev);
kmem_cache_destroy(steering->ftes_cache);
@ -2491,6 +2496,22 @@ static int init_sniffer_rx_root_ns(struct mlx5_flow_steering *steering)
return 0;
}
static int init_rdma_rx_root_ns(struct mlx5_flow_steering *steering)
{
struct fs_prio *prio;
steering->rdma_rx_root_ns = create_root_ns(steering, FS_FT_RDMA_RX);
if (!steering->rdma_rx_root_ns)
return -ENOMEM;
/* Create single prio */
prio = fs_create_prio(&steering->rdma_rx_root_ns->ns, 0, 1);
if (IS_ERR(prio)) {
cleanup_root_ns(steering->rdma_rx_root_ns);
return PTR_ERR(prio);
}
return 0;
}
static int init_fdb_root_ns(struct mlx5_flow_steering *steering)
{
struct mlx5_flow_namespace *ns;
@ -2727,6 +2748,12 @@ int mlx5_init_fs(struct mlx5_core_dev *dev)
goto err;
}
if (MLX5_CAP_FLOWTABLE_RDMA_RX(dev, ft_support)) {
err = init_rdma_rx_root_ns(steering);
if (err)
goto err;
}
if (MLX5_IPSEC_DEV(dev) || MLX5_CAP_FLOWTABLE_NIC_TX(dev, ft_support)) {
err = init_egress_root_ns(steering);
if (err)

2
drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
View file

@ -67,6 +67,7 @@ enum fs_flow_table_type {
FS_FT_FDB = 0X4,
FS_FT_SNIFFER_RX = 0X5,
FS_FT_SNIFFER_TX = 0X6,
FS_FT_RDMA_RX = 0X7,
FS_FT_MAX_TYPE = FS_FT_SNIFFER_TX,
};
@ -90,6 +91,7 @@ struct mlx5_flow_steering {
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 mlx5_flow_root_namespace *rdma_rx_root_ns;
struct mlx5_flow_root_namespace *egress_root_ns;
};

6
include/linux/mlx5/device.h
View file

@ -1166,6 +1166,12 @@ enum mlx5_qcam_feature_groups {
#define MLX5_CAP_FLOWTABLE_SNIFFER_TX_MAX(mdev, cap) \
MLX5_CAP_FLOWTABLE_MAX(mdev, flow_table_properties_nic_transmit_sniffer.cap)
#define MLX5_CAP_FLOWTABLE_RDMA_RX(mdev, cap) \
MLX5_CAP_FLOWTABLE(mdev, flow_table_properties_nic_receive_rdma.cap)
#define MLX5_CAP_FLOWTABLE_RDMA_RX_MAX(mdev, cap) \
MLX5_CAP_FLOWTABLE_MAX(mdev, flow_table_properties_nic_receive_rdma.cap)
#define MLX5_CAP_ESW_FLOWTABLE(mdev, cap) \
MLX5_GET(flow_table_eswitch_cap, \
mdev->caps.hca_cur[MLX5_CAP_ESWITCH_FLOW_TABLE], cap)

1
include/linux/mlx5/fs.h
View file

@ -73,6 +73,7 @@ enum mlx5_flow_namespace_type {
MLX5_FLOW_NAMESPACE_SNIFFER_RX,
MLX5_FLOW_NAMESPACE_SNIFFER_TX,
MLX5_FLOW_NAMESPACE_EGRESS,
MLX5_FLOW_NAMESPACE_RDMA_RX,
};
enum {

2
include/linux/mlx5/mlx5_ifc.h
View file

@ -598,7 +598,7 @@ struct mlx5_ifc_flow_table_nic_cap_bits {
struct mlx5_ifc_flow_table_prop_layout_bits flow_table_properties_nic_receive;
u8 reserved_at_400[0x200];
struct mlx5_ifc_flow_table_prop_layout_bits flow_table_properties_nic_receive_rdma;
struct mlx5_ifc_flow_table_prop_layout_bits flow_table_properties_nic_receive_sniffer;