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Message-ID: <20190426215732.29761-8-saeedm@mellanox.com>
Date: Fri, 26 Apr 2019 21:58:19 +0000
From: Saeed Mahameed <saeedm@...lanox.com>
To: Saeed Mahameed <saeedm@...lanox.com>,
Leon Romanovsky <leonro@...lanox.com>
CC: Jason Gunthorpe <jgg@...lanox.com>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
"linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
Maor Gottlieb <maorg@...lanox.com>,
Mark Bloch <markb@...lanox.com>
Subject: [PATCH mlx5-next 07/11] net/mlx5: Add support in RDMA RX steering
From: Maor Gottlieb <maorg@...lanox.com>
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@...lanox.com>
Reviewed-by: Mark Bloch <markb@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
.../net/ethernet/mellanox/mlx5/core/fs_cmd.c | 1 +
.../net/ethernet/mellanox/mlx5/core/fs_core.c | 27 +++++++++++++++++++
.../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;
--
2.20.1
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