From d83eb50e29de36ddc819863ab7b9d2da58bccbd0 Mon Sep 17 00:00:00 2001 From: Maor Gottlieb Date: Mon, 29 Apr 2019 18:14:12 +0000 Subject: [PATCH] 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: Maor Gottlieb Reviewed-by: Mark Bloch Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c | 1 + drivers/net/ethernet/mellanox/mlx5/core/fs_core.c | 27 +++++++++++++++++++++++ drivers/net/ethernet/mellanox/mlx5/core/fs_core.h | 2 ++ include/linux/mlx5/device.h | 6 +++++ include/linux/mlx5/fs.h | 1 + include/linux/mlx5/mlx5_ifc.h | 2 +- 6 files changed, 38 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c index e89555da485e..629c5ab1c0d1 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c @@ -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(); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c index 6024df821734..3c2302a2b9d4 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c @@ -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) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h index 87de0e4d9124..e43c6f6d46a7 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h @@ -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; }; diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h index f93a5598b942..28ebb6c93542 100644 --- a/include/linux/mlx5/device.h +++ b/include/linux/mlx5/device.h @@ -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) diff --git a/include/linux/mlx5/fs.h b/include/linux/mlx5/fs.h index fd91df3a4e09..e690ba0f965c 100644 --- a/include/linux/mlx5/fs.h +++ b/include/linux/mlx5/fs.h @@ -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 { diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index eeedf3f53ed3..89e7194b3d97 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -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; -- 2.11.0