diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/esw/acl/helper.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/esw/acl/helper.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/acl/helper.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/acl/helper.c new file mode 100644 index 000000000000..22f4c1c28006 --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/acl/helper.c @@ -0,0 +1,160 @@ +// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB +/* Copyright (c) 2020 Mellanox Technologies Inc. All rights reserved. */ + +#include "mlx5_core.h" +#include "eswitch.h" +#include "helper.h" + +struct mlx5_flow_table * +esw_acl_table_create(struct mlx5_eswitch *esw, u16 vport_num, int ns, int size) +{ + struct mlx5_core_dev *dev = esw->dev; + struct mlx5_flow_namespace *root_ns; + struct mlx5_flow_table *acl; + int acl_supported; + int vport_index; + int err; + + acl_supported = (ns == MLX5_FLOW_NAMESPACE_ESW_INGRESS) ? + MLX5_CAP_ESW_INGRESS_ACL(dev, ft_support) : + MLX5_CAP_ESW_EGRESS_ACL(dev, ft_support); + + if (!acl_supported) + return ERR_PTR(-EOPNOTSUPP); + + esw_debug(dev, "Create vport[%d] %s ACL table\n", vport_num, + ns == MLX5_FLOW_NAMESPACE_ESW_INGRESS ? "ingress" : "egress"); + + vport_index = mlx5_eswitch_vport_num_to_index(esw, vport_num); + root_ns = mlx5_get_flow_vport_acl_namespace(dev, ns, vport_index); + if (!root_ns) { + esw_warn(dev, "Failed to get E-Switch root namespace for vport (%d)\n", + vport_num); + return ERR_PTR(-EOPNOTSUPP); + } + + acl = mlx5_create_vport_flow_table(root_ns, 0, size, 0, vport_num); + if (IS_ERR(acl)) { + err = PTR_ERR(acl); + esw_warn(dev, "vport[%d] create %s ACL table, err(%d)\n", vport_num, + ns == MLX5_FLOW_NAMESPACE_ESW_INGRESS ? "ingress" : "egress", err); + } + return acl; +} + +int esw_egress_acl_vlan_create(struct mlx5_eswitch *esw, + struct mlx5_vport *vport, + struct mlx5_flow_destination *fwd_dest, + u16 vlan_id, u32 flow_action) +{ + struct mlx5_flow_act flow_act = {}; + struct mlx5_flow_spec *spec; + int err = 0; + + if (vport->egress.allowed_vlan) + return -EEXIST; + + spec = kvzalloc(sizeof(*spec), GFP_KERNEL); + if (!spec) + return -ENOMEM; + + MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria, outer_headers.cvlan_tag); + MLX5_SET_TO_ONES(fte_match_param, spec->match_value, outer_headers.cvlan_tag); + MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria, outer_headers.first_vid); + MLX5_SET(fte_match_param, spec->match_value, outer_headers.first_vid, vlan_id); + + spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS; + flow_act.action = flow_action; + vport->egress.allowed_vlan = + mlx5_add_flow_rules(vport->egress.acl, spec, + &flow_act, fwd_dest, 0); + if (IS_ERR(vport->egress.allowed_vlan)) { + err = PTR_ERR(vport->egress.allowed_vlan); + esw_warn(esw->dev, + "vport[%d] configure egress vlan rule failed, err(%d)\n", + vport->vport, err); + vport->egress.allowed_vlan = NULL; + } + + kvfree(spec); + return err; +} + +void esw_acl_egress_vlan_destroy(struct mlx5_vport *vport) +{ + if (!IS_ERR_OR_NULL(vport->egress.allowed_vlan)) { + mlx5_del_flow_rules(vport->egress.allowed_vlan); + vport->egress.allowed_vlan = NULL; + } +} + +int esw_acl_egress_vlan_grp_create(struct mlx5_eswitch *esw, struct mlx5_vport *vport) +{ + int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); + struct mlx5_flow_group *vlan_grp; + void *match_criteria; + u32 *flow_group_in; + int ret = 0; + + flow_group_in = kvzalloc(inlen, GFP_KERNEL); + if (!flow_group_in) + return -ENOMEM; + + MLX5_SET(create_flow_group_in, flow_group_in, + match_criteria_enable, MLX5_MATCH_OUTER_HEADERS); + match_criteria = MLX5_ADDR_OF(create_flow_group_in, + flow_group_in, match_criteria); + MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.cvlan_tag); + MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.first_vid); + MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 0); + MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, 0); + + vlan_grp = mlx5_create_flow_group(vport->egress.acl, flow_group_in); + if (IS_ERR(vlan_grp)) { + ret = PTR_ERR(vlan_grp); + esw_warn(esw->dev, + "Failed to create E-Switch vport[%d] egress pop vlans flow group, err(%d)\n", + vport->vport, ret); + goto out; + } + vport->egress.vlan_grp = vlan_grp; + +out: + kvfree(flow_group_in); + return ret; +} + +void esw_acl_egress_vlan_grp_destroy(struct mlx5_vport *vport) +{ + if (!IS_ERR_OR_NULL(vport->egress.vlan_grp)) { + mlx5_destroy_flow_group(vport->egress.vlan_grp); + vport->egress.vlan_grp = NULL; + } +} + +void esw_acl_egress_table_destroy(struct mlx5_vport *vport) +{ + if (IS_ERR_OR_NULL(vport->egress.acl)) + return; + + mlx5_destroy_flow_table(vport->egress.acl); + vport->egress.acl = NULL; +} + +void esw_acl_ingress_table_destroy(struct mlx5_vport *vport) +{ + if (!vport->ingress.acl) + return; + + mlx5_destroy_flow_table(vport->ingress.acl); + vport->ingress.acl = NULL; +} + +void esw_acl_ingress_allow_rule_destroy(struct mlx5_vport *vport) +{ + if (!vport->ingress.allow_rule) + return; + + mlx5_del_flow_rules(vport->ingress.allow_rule); + vport->ingress.allow_rule = NULL; +} |