diff options
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/eswitch.c | 223 | ||||
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/eswitch.h | 5 |
2 files changed, 207 insertions, 21 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c index 6cb9710f76d5..84200d93cf9d 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c @@ -64,6 +64,9 @@ enum { PROMISC_CHANGE = BIT(3), }; +static void esw_destroy_legacy_fdb_table(struct mlx5_eswitch *esw); +static void esw_cleanup_vepa_rules(struct mlx5_eswitch *esw); + /* Vport context events */ #define SRIOV_VPORT_EVENTS (UC_ADDR_CHANGE | \ MC_ADDR_CHANGE | \ @@ -268,6 +271,37 @@ esw_fdb_set_vport_promisc_rule(struct mlx5_eswitch *esw, u16 vport) return __esw_fdb_set_vport_rule(esw, vport, true, mac_c, mac_v); } +enum { + LEGACY_VEPA_PRIO = 0, + LEGACY_FDB_PRIO, +}; + +static int esw_create_legacy_vepa_table(struct mlx5_eswitch *esw) +{ + struct mlx5_core_dev *dev = esw->dev; + struct mlx5_flow_namespace *root_ns; + struct mlx5_flow_table *fdb; + int err; + + root_ns = mlx5_get_fdb_sub_ns(dev, 0); + if (!root_ns) { + esw_warn(dev, "Failed to get FDB flow namespace\n"); + return -EOPNOTSUPP; + } + + /* num FTE 2, num FG 2 */ + fdb = mlx5_create_auto_grouped_flow_table(root_ns, LEGACY_VEPA_PRIO, + 2, 2, 0, 0); + if (IS_ERR(fdb)) { + err = PTR_ERR(fdb); + esw_warn(dev, "Failed to create VEPA FDB err %d\n", err); + return err; + } + esw->fdb_table.legacy.vepa_fdb = fdb; + + return 0; +} + static int esw_create_legacy_fdb_table(struct mlx5_eswitch *esw) { int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); @@ -296,8 +330,8 @@ static int esw_create_legacy_fdb_table(struct mlx5_eswitch *esw) return -ENOMEM; table_size = BIT(MLX5_CAP_ESW_FLOWTABLE_FDB(dev, log_max_ft_size)); - ft_attr.max_fte = table_size; + ft_attr.prio = LEGACY_FDB_PRIO; fdb = mlx5_create_flow_table(root_ns, &ft_attr); if (IS_ERR(fdb)) { err = PTR_ERR(fdb); @@ -356,41 +390,65 @@ static int esw_create_legacy_fdb_table(struct mlx5_eswitch *esw) esw->fdb_table.legacy.promisc_grp = g; out: - if (err) { - if (!IS_ERR_OR_NULL(esw->fdb_table.legacy.allmulti_grp)) { - mlx5_destroy_flow_group(esw->fdb_table.legacy.allmulti_grp); - esw->fdb_table.legacy.allmulti_grp = NULL; - } - if (!IS_ERR_OR_NULL(esw->fdb_table.legacy.addr_grp)) { - mlx5_destroy_flow_group(esw->fdb_table.legacy.addr_grp); - esw->fdb_table.legacy.addr_grp = NULL; - } - if (!IS_ERR_OR_NULL(esw->fdb_table.legacy.fdb)) { - mlx5_destroy_flow_table(esw->fdb_table.legacy.fdb); - esw->fdb_table.legacy.fdb = NULL; - } - } + if (err) + esw_destroy_legacy_fdb_table(esw); kvfree(flow_group_in); return err; } +static void esw_destroy_legacy_vepa_table(struct mlx5_eswitch *esw) +{ + esw_debug(esw->dev, "Destroy VEPA Table\n"); + if (!esw->fdb_table.legacy.vepa_fdb) + return; + + mlx5_destroy_flow_table(esw->fdb_table.legacy.vepa_fdb); + esw->fdb_table.legacy.vepa_fdb = NULL; +} + static void esw_destroy_legacy_fdb_table(struct mlx5_eswitch *esw) { + esw_debug(esw->dev, "Destroy FDB Table\n"); if (!esw->fdb_table.legacy.fdb) return; - esw_debug(esw->dev, "Destroy FDB Table\n"); - mlx5_destroy_flow_group(esw->fdb_table.legacy.promisc_grp); - mlx5_destroy_flow_group(esw->fdb_table.legacy.allmulti_grp); - mlx5_destroy_flow_group(esw->fdb_table.legacy.addr_grp); + if (esw->fdb_table.legacy.promisc_grp) + mlx5_destroy_flow_group(esw->fdb_table.legacy.promisc_grp); + if (esw->fdb_table.legacy.allmulti_grp) + mlx5_destroy_flow_group(esw->fdb_table.legacy.allmulti_grp); + if (esw->fdb_table.legacy.addr_grp) + mlx5_destroy_flow_group(esw->fdb_table.legacy.addr_grp); mlx5_destroy_flow_table(esw->fdb_table.legacy.fdb); + esw->fdb_table.legacy.fdb = NULL; esw->fdb_table.legacy.addr_grp = NULL; esw->fdb_table.legacy.allmulti_grp = NULL; esw->fdb_table.legacy.promisc_grp = NULL; } +static int esw_create_legacy_table(struct mlx5_eswitch *esw) +{ + int err; + + err = esw_create_legacy_vepa_table(esw); + if (err) + return err; + + err = esw_create_legacy_fdb_table(esw); + if (err) + esw_destroy_legacy_vepa_table(esw); + + return err; +} + +static void esw_destroy_legacy_table(struct mlx5_eswitch *esw) +{ + esw_cleanup_vepa_rules(esw); + esw_destroy_legacy_fdb_table(esw); + esw_destroy_legacy_vepa_table(esw); +} + /* E-Switch vport UC/MC lists management */ typedef int (*vport_addr_action)(struct mlx5_eswitch *esw, struct vport_addr *vaddr); @@ -1677,7 +1735,9 @@ int mlx5_eswitch_enable_sriov(struct mlx5_eswitch *esw, int nvfs, int mode) mlx5_lag_update(esw->dev); if (mode == SRIOV_LEGACY) { - err = esw_create_legacy_fdb_table(esw); + err = esw_create_legacy_table(esw); + if (err) + goto abort; } else { mlx5_reload_interface(esw->dev, MLX5_INTERFACE_PROTOCOL_ETH); mlx5_reload_interface(esw->dev, MLX5_INTERFACE_PROTOCOL_IB); @@ -1758,7 +1818,7 @@ void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw) esw_destroy_tsar(esw); if (esw->mode == SRIOV_LEGACY) - esw_destroy_legacy_fdb_table(esw); + esw_destroy_legacy_table(esw); else if (esw->mode == SRIOV_OFFLOADS) esw_offloads_cleanup(esw); @@ -2041,6 +2101,127 @@ int mlx5_eswitch_set_vport_spoofchk(struct mlx5_eswitch *esw, return err; } +static void esw_cleanup_vepa_rules(struct mlx5_eswitch *esw) +{ + if (esw->fdb_table.legacy.vepa_uplink_rule) + mlx5_del_flow_rules(esw->fdb_table.legacy.vepa_uplink_rule); + + if (esw->fdb_table.legacy.vepa_star_rule) + mlx5_del_flow_rules(esw->fdb_table.legacy.vepa_star_rule); + + esw->fdb_table.legacy.vepa_uplink_rule = NULL; + esw->fdb_table.legacy.vepa_star_rule = NULL; +} + +static int _mlx5_eswitch_set_vepa_locked(struct mlx5_eswitch *esw, + u8 setting) +{ + struct mlx5_flow_destination dest = {}; + struct mlx5_flow_act flow_act = {}; + struct mlx5_flow_handle *flow_rule; + struct mlx5_flow_spec *spec; + int err = 0; + void *misc; + + if (!setting) { + esw_cleanup_vepa_rules(esw); + return 0; + } + + if (esw->fdb_table.legacy.vepa_uplink_rule) + return 0; + + spec = kvzalloc(sizeof(*spec), GFP_KERNEL); + if (!spec) + return -ENOMEM; + + /* Uplink rule forward uplink traffic to FDB */ + misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters); + MLX5_SET(fte_match_set_misc, misc, source_port, MLX5_VPORT_UPLINK); + + misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters); + MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_port); + + spec->match_criteria_enable = MLX5_MATCH_MISC_PARAMETERS; + dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; + dest.ft = esw->fdb_table.legacy.fdb; + flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; + flow_rule = mlx5_add_flow_rules(esw->fdb_table.legacy.vepa_fdb, spec, + &flow_act, &dest, 1); + if (IS_ERR(flow_rule)) { + err = PTR_ERR(flow_rule); + goto out; + } else { + esw->fdb_table.legacy.vepa_uplink_rule = flow_rule; + } + + /* Star rule to forward all traffic to uplink vport */ + memset(spec, 0, sizeof(*spec)); + dest.type = MLX5_FLOW_DESTINATION_TYPE_VPORT; + dest.vport.num = MLX5_VPORT_UPLINK; + flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; + flow_rule = mlx5_add_flow_rules(esw->fdb_table.legacy.vepa_fdb, spec, + &flow_act, &dest, 1); + if (IS_ERR(flow_rule)) { + err = PTR_ERR(flow_rule); + goto out; + } else { + esw->fdb_table.legacy.vepa_star_rule = flow_rule; + } + +out: + kvfree(spec); + if (err) + esw_cleanup_vepa_rules(esw); + return err; +} + +int mlx5_eswitch_set_vepa(struct mlx5_eswitch *esw, u8 setting) +{ + int err = 0; + + if (!esw) + return -EOPNOTSUPP; + + if (!ESW_ALLOWED(esw)) + return -EPERM; + + mutex_lock(&esw->state_lock); + if (esw->mode != SRIOV_LEGACY) { + err = -EOPNOTSUPP; + goto out; + } + + err = _mlx5_eswitch_set_vepa_locked(esw, setting); + +out: + mutex_unlock(&esw->state_lock); + return err; +} + +int mlx5_eswitch_get_vepa(struct mlx5_eswitch *esw, u8 *setting) +{ + int err = 0; + + if (!esw) + return -EOPNOTSUPP; + + if (!ESW_ALLOWED(esw)) + return -EPERM; + + mutex_lock(&esw->state_lock); + if (esw->mode != SRIOV_LEGACY) { + err = -EOPNOTSUPP; + goto out; + } + + *setting = esw->fdb_table.legacy.vepa_uplink_rule ? 1 : 0; + +out: + mutex_unlock(&esw->state_lock); + return err; +} + int mlx5_eswitch_set_vport_trust(struct mlx5_eswitch *esw, int vport, bool setting) { diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h index af5581a57e56..5f82e637410b 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h @@ -137,6 +137,9 @@ struct mlx5_eswitch_fdb { struct mlx5_flow_group *addr_grp; struct mlx5_flow_group *allmulti_grp; struct mlx5_flow_group *promisc_grp; + struct mlx5_flow_table *vepa_fdb; + struct mlx5_flow_handle *vepa_uplink_rule; + struct mlx5_flow_handle *vepa_star_rule; } legacy; struct offloads_fdb { @@ -242,6 +245,8 @@ int mlx5_eswitch_set_vport_trust(struct mlx5_eswitch *esw, int vport_num, bool setting); int mlx5_eswitch_set_vport_rate(struct mlx5_eswitch *esw, int vport, u32 max_rate, u32 min_rate); +int mlx5_eswitch_set_vepa(struct mlx5_eswitch *esw, u8 setting); +int mlx5_eswitch_get_vepa(struct mlx5_eswitch *esw, u8 *setting); int mlx5_eswitch_get_vport_config(struct mlx5_eswitch *esw, int vport, struct ifla_vf_info *ivi); int mlx5_eswitch_get_vport_stats(struct mlx5_eswitch *esw, |