From 5f4183781a303da5ab6731b8c19328c5b9df89fa Mon Sep 17 00:00:00 2001 From: Aviad Yehezkel Date: Sun, 18 Feb 2018 13:17:17 +0200 Subject: [PATCH] net/mlx5: Add empty egress namespace to flow steering core Currently, we don't support egress flow steering namespace in mlx5 flow steering core implementation. However, when we want to encrypt a packet, we model it as a flow steering rule in the egress path. To overcome this, we add an empty egress namespace to flow steering. This namespace is initialized only when ipsec support exists. In the future, this will grow to a full blown full steering implementation, resembling the ingress path. Signed-off-by: Matan Barak Signed-off-by: Aviad Yehezkel Signed-off-by: Saeed Mahameed --- .../mellanox/mlx5/core/diag/fs_tracepoint.c | 3 ++ .../net/ethernet/mellanox/mlx5/core/fs_cmd.c | 1 + .../net/ethernet/mellanox/mlx5/core/fs_core.c | 28 +++++++++++++++++++ .../net/ethernet/mellanox/mlx5/core/fs_core.h | 2 ++ include/linux/mlx5/fs.h | 1 + include/linux/mlx5/mlx5_ifc.h | 1 + 6 files changed, 36 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.c b/drivers/net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.c index 0be4575b58a27..3816b4506561e 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.c @@ -246,6 +246,9 @@ const char *parse_fs_dst(struct trace_seq *p, case MLX5_FLOW_DESTINATION_TYPE_COUNTER: trace_seq_printf(p, "counter_id=%u\n", counter_id); break; + case MLX5_FLOW_DESTINATION_TYPE_PORT: + trace_seq_printf(p, "port\n"); + break; } trace_seq_putc(p, 0); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c index c3eaddb43e578..ed3ea80a24be7 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c @@ -731,6 +731,7 @@ 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: return mlx5_fs_cmd_get_fw_cmds(); + case FS_FT_NIC_TX: 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 f3a654b96b98d..5c111186d1031 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c @@ -37,6 +37,7 @@ #include "fs_core.h" #include "fs_cmd.h" #include "diag/fs_tracepoint.h" +#include "accel/ipsec.h" #define INIT_TREE_NODE_ARRAY_SIZE(...) (sizeof((struct init_tree_node[]){__VA_ARGS__}) /\ sizeof(struct init_tree_node)) @@ -2049,6 +2050,11 @@ struct mlx5_flow_namespace *mlx5_get_flow_namespace(struct mlx5_core_dev *dev, return &steering->sniffer_tx_root_ns->ns; else return NULL; + case MLX5_FLOW_NAMESPACE_EGRESS: + if (steering->egress_root_ns) + return &steering->egress_root_ns->ns; + else + return NULL; default: return NULL; } @@ -2413,6 +2419,7 @@ void mlx5_cleanup_fs(struct mlx5_core_dev *dev) cleanup_root_ns(steering->fdb_root_ns); cleanup_root_ns(steering->sniffer_rx_root_ns); cleanup_root_ns(steering->sniffer_tx_root_ns); + cleanup_root_ns(steering->egress_root_ns); mlx5_cleanup_fc_stats(dev); kmem_cache_destroy(steering->ftes_cache); kmem_cache_destroy(steering->fgs_cache); @@ -2558,6 +2565,20 @@ cleanup_root_ns: return err; } +static int init_egress_root_ns(struct mlx5_flow_steering *steering) +{ + struct fs_prio *prio; + + steering->egress_root_ns = create_root_ns(steering, + FS_FT_NIC_TX); + if (!steering->egress_root_ns) + return -ENOMEM; + + /* create 1 prio*/ + prio = fs_create_prio(&steering->egress_root_ns->ns, 0, 1); + return PTR_ERR_OR_ZERO(prio); +} + int mlx5_init_fs(struct mlx5_core_dev *dev) { struct mlx5_flow_steering *steering; @@ -2623,6 +2644,13 @@ int mlx5_init_fs(struct mlx5_core_dev *dev) goto err; } + if (mlx5_accel_ipsec_device_caps(steering->dev) & + MLX5_ACCEL_IPSEC_DEVICE) { + err = init_egress_root_ns(steering); + if (err) + goto err; + } + return 0; err: mlx5_cleanup_fs(dev); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h index 45791c7922963..8586af9ce5141 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h @@ -48,6 +48,7 @@ enum fs_node_type { enum fs_flow_table_type { FS_FT_NIC_RX = 0x0, + FS_FT_NIC_TX = 0x1, FS_FT_ESW_EGRESS_ACL = 0x2, FS_FT_ESW_INGRESS_ACL = 0x3, FS_FT_FDB = 0X4, @@ -75,6 +76,7 @@ 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 *egress_root_ns; }; struct fs_node { diff --git a/include/linux/mlx5/fs.h b/include/linux/mlx5/fs.h index f580bc4c2443a..744ea228acead 100644 --- a/include/linux/mlx5/fs.h +++ b/include/linux/mlx5/fs.h @@ -69,6 +69,7 @@ enum mlx5_flow_namespace_type { MLX5_FLOW_NAMESPACE_ESW_INGRESS, MLX5_FLOW_NAMESPACE_SNIFFER_RX, MLX5_FLOW_NAMESPACE_SNIFFER_TX, + MLX5_FLOW_NAMESPACE_EGRESS, }; struct mlx5_flow_table; diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index f4e417686f620..9bc4ea0cf5a99 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -1091,6 +1091,7 @@ enum mlx5_flow_destination_type { MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE = 0x1, MLX5_FLOW_DESTINATION_TYPE_TIR = 0x2, + MLX5_FLOW_DESTINATION_TYPE_PORT = 0x99, MLX5_FLOW_DESTINATION_TYPE_COUNTER = 0x100, }; -- 2.30.2