Commit d83eb50e authored by Maor Gottlieb's avatar Maor Gottlieb Committed by Saeed Mahameed
Browse files

net/mlx5: Add support in RDMA RX steering 



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: default avatarMaor Gottlieb <maorg@mellanox.com>
Reviewed-by: default avatarMark Bloch <markb@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
parent ae288a48

drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c

+1 −0
Original line number Diff line number Diff line
@@ -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();

drivers/net/ethernet/mellanox/mlx5/core/fs_core.c

+27 −0
Original line number Diff line number Diff line
@@ -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)

drivers/net/ethernet/mellanox/mlx5/core/fs_core.h

+2 −0
Original line number Diff line number Diff line
@@ -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;

};

include/linux/mlx5/device.h

+6 −0
Original line number Diff line number Diff line
@@ -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)

include/linux/mlx5/fs.h

+1 −0
Original line number Diff line number Diff line
@@ -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 {

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