diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c | 180 |
1 files changed, 85 insertions, 95 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c index cfcd72bad9af..3f63df127091 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c @@ -180,7 +180,7 @@ esw_setup_decap_indir(struct mlx5_eswitch *esw, { struct mlx5_flow_table *ft; - if (!(attr->flags & MLX5_ESW_ATTR_FLAG_SRC_REWRITE)) + if (!(attr->flags & MLX5_ATTR_FLAG_SRC_REWRITE)) return -EOPNOTSUPP; ft = mlx5_esw_indir_table_get(esw, attr, spec, @@ -201,12 +201,12 @@ esw_cleanup_decap_indir(struct mlx5_eswitch *esw, static int esw_setup_sampler_dest(struct mlx5_flow_destination *dest, struct mlx5_flow_act *flow_act, - struct mlx5_flow_attr *attr, + u32 sampler_id, int i) { flow_act->flags |= FLOW_ACT_IGNORE_FLOW_LEVEL; dest[i].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_SAMPLER; - dest[i].sampler_id = attr->sample_attr->sampler_id; + dest[i].sampler_id = sampler_id; return 0; } @@ -297,7 +297,7 @@ esw_setup_chain_src_port_rewrite(struct mlx5_flow_destination *dest, struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr; int err; - if (!(attr->flags & MLX5_ESW_ATTR_FLAG_SRC_REWRITE)) + if (!(attr->flags & MLX5_ATTR_FLAG_SRC_REWRITE)) return -EOPNOTSUPP; /* flow steering cannot handle more than one dest with the same ft @@ -364,7 +364,7 @@ esw_setup_indir_table(struct mlx5_flow_destination *dest, struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr; int j, err; - if (!(attr->flags & MLX5_ESW_ATTR_FLAG_SRC_REWRITE)) + if (!(attr->flags & MLX5_ATTR_FLAG_SRC_REWRITE)) return -EOPNOTSUPP; for (j = esw_attr->split_count; j < esw_attr->out_count; j++, (*i)++) { @@ -463,15 +463,16 @@ esw_setup_dests(struct mlx5_flow_destination *dest, if (!mlx5_eswitch_termtbl_required(esw, attr, flow_act, spec) && esw_src_port_rewrite_supported(esw)) - attr->flags |= MLX5_ESW_ATTR_FLAG_SRC_REWRITE; + attr->flags |= MLX5_ATTR_FLAG_SRC_REWRITE; - if (attr->flags & MLX5_ESW_ATTR_FLAG_SAMPLE) { - esw_setup_sampler_dest(dest, flow_act, attr, *i); + if (attr->flags & MLX5_ATTR_FLAG_SAMPLE && + !(attr->flags & MLX5_ATTR_FLAG_SLOW_PATH)) { + esw_setup_sampler_dest(dest, flow_act, attr->sample_attr.sampler_id, *i); (*i)++; } else if (attr->dest_ft) { esw_setup_ft_dest(dest, flow_act, esw, attr, spec, *i); (*i)++; - } else if (mlx5_esw_attr_flags_skip(attr->flags)) { + } else if (mlx5e_tc_attr_flags_skip(attr->flags)) { esw_setup_slow_path_dest(dest, flow_act, chains, *i); (*i)++; } else if (attr->dest_chain) { @@ -498,7 +499,7 @@ esw_cleanup_dests(struct mlx5_eswitch *esw, if (attr->dest_ft) { esw_cleanup_decap_indir(esw, attr); - } else if (!mlx5_esw_attr_flags_skip(attr->flags)) { + } else if (!mlx5e_tc_attr_flags_skip(attr->flags)) { if (attr->dest_chain) esw_cleanup_chain_dest(chains, attr->dest_chain, 1, 0); else if (esw_is_indir_table(esw, attr)) @@ -589,7 +590,7 @@ mlx5_eswitch_add_offloaded_rule(struct mlx5_eswitch *esw, else fdb = attr->ft; - if (!(attr->flags & MLX5_ESW_ATTR_FLAG_NO_IN_PORT)) + if (!(attr->flags & MLX5_ATTR_FLAG_NO_IN_PORT)) mlx5_eswitch_set_rule_source_port(esw, spec, attr, esw_attr->in_mdev->priv.eswitch, esw_attr->in_rep->vport); @@ -721,7 +722,7 @@ __mlx5_eswitch_del_rule(struct mlx5_eswitch *esw, mlx5_del_flow_rules(rule); - if (!mlx5_esw_attr_flags_skip(attr->flags)) { + if (!mlx5e_tc_attr_flags_skip(attr->flags)) { /* unref the term table */ for (i = 0; i < MLX5_MAX_FLOW_FWD_VPORTS; i++) { if (esw_attr->dests[i].termtbl) @@ -863,7 +864,7 @@ int mlx5_eswitch_add_vlan_action(struct mlx5_eswitch *esw, if (err) goto unlock; - attr->flags &= ~MLX5_ESW_ATTR_FLAG_VLAN_HANDLED; + attr->flags &= ~MLX5_ATTR_FLAG_VLAN_HANDLED; vport = esw_vlan_action_get_vport(esw_attr, push, pop); @@ -871,7 +872,7 @@ int mlx5_eswitch_add_vlan_action(struct mlx5_eswitch *esw, /* tracks VF --> wire rules without vlan push action */ if (esw_attr->dests[0].rep->vport == MLX5_VPORT_UPLINK) { vport->vlan_refcount++; - attr->flags |= MLX5_ESW_ATTR_FLAG_VLAN_HANDLED; + attr->flags |= MLX5_ATTR_FLAG_VLAN_HANDLED; } goto unlock; @@ -902,7 +903,7 @@ skip_set_push: } out: if (!err) - attr->flags |= MLX5_ESW_ATTR_FLAG_VLAN_HANDLED; + attr->flags |= MLX5_ATTR_FLAG_VLAN_HANDLED; unlock: mutex_unlock(&esw->state_lock); return err; @@ -921,7 +922,7 @@ int mlx5_eswitch_del_vlan_action(struct mlx5_eswitch *esw, if (mlx5_eswitch_vlan_actions_supported(esw->dev, 1)) return 0; - if (!(attr->flags & MLX5_ESW_ATTR_FLAG_VLAN_HANDLED)) + if (!(attr->flags & MLX5_ATTR_FLAG_VLAN_HANDLED)) return 0; push = !!(attr->action & MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH); @@ -2378,60 +2379,6 @@ void esw_offloads_unload_rep(struct mlx5_eswitch *esw, u16 vport_num) mlx5_esw_offloads_devlink_port_unregister(esw, vport_num); } -static int esw_set_uplink_slave_ingress_root(struct mlx5_core_dev *master, - struct mlx5_core_dev *slave) -{ - u32 in[MLX5_ST_SZ_DW(set_flow_table_root_in)] = {}; - u32 out[MLX5_ST_SZ_DW(set_flow_table_root_out)] = {}; - struct mlx5_eswitch *esw; - struct mlx5_flow_root_namespace *root; - struct mlx5_flow_namespace *ns; - struct mlx5_vport *vport; - int err; - - MLX5_SET(set_flow_table_root_in, in, opcode, - MLX5_CMD_OP_SET_FLOW_TABLE_ROOT); - MLX5_SET(set_flow_table_root_in, in, table_type, FS_FT_ESW_INGRESS_ACL); - MLX5_SET(set_flow_table_root_in, in, other_vport, 1); - MLX5_SET(set_flow_table_root_in, in, vport_number, MLX5_VPORT_UPLINK); - - if (master) { - esw = master->priv.eswitch; - vport = mlx5_eswitch_get_vport(esw, MLX5_VPORT_UPLINK); - MLX5_SET(set_flow_table_root_in, in, table_of_other_vport, 1); - MLX5_SET(set_flow_table_root_in, in, table_vport_number, - MLX5_VPORT_UPLINK); - - ns = mlx5_get_flow_vport_acl_namespace(master, - MLX5_FLOW_NAMESPACE_ESW_INGRESS, - vport->index); - root = find_root(&ns->node); - mutex_lock(&root->chain_lock); - - MLX5_SET(set_flow_table_root_in, in, - table_eswitch_owner_vhca_id_valid, 1); - MLX5_SET(set_flow_table_root_in, in, - table_eswitch_owner_vhca_id, - MLX5_CAP_GEN(master, vhca_id)); - MLX5_SET(set_flow_table_root_in, in, table_id, - root->root_ft->id); - } else { - esw = slave->priv.eswitch; - vport = mlx5_eswitch_get_vport(esw, MLX5_VPORT_UPLINK); - ns = mlx5_get_flow_vport_acl_namespace(slave, - MLX5_FLOW_NAMESPACE_ESW_INGRESS, - vport->index); - root = find_root(&ns->node); - mutex_lock(&root->chain_lock); - MLX5_SET(set_flow_table_root_in, in, table_id, root->root_ft->id); - } - - err = mlx5_cmd_exec(slave, in, sizeof(in), out, sizeof(out)); - mutex_unlock(&root->chain_lock); - - return err; -} - static int esw_set_slave_root_fdb(struct mlx5_core_dev *master, struct mlx5_core_dev *slave) { @@ -2613,15 +2560,10 @@ int mlx5_eswitch_offloads_config_single_fdb(struct mlx5_eswitch *master_esw, { int err; - err = esw_set_uplink_slave_ingress_root(master_esw->dev, - slave_esw->dev); - if (err) - return -EINVAL; - err = esw_set_slave_root_fdb(master_esw->dev, slave_esw->dev); if (err) - goto err_fdb; + return err; err = esw_set_master_egress_rule(master_esw->dev, slave_esw->dev); @@ -2633,9 +2575,6 @@ int mlx5_eswitch_offloads_config_single_fdb(struct mlx5_eswitch *master_esw, err_acl: esw_set_slave_root_fdb(NULL, slave_esw->dev); -err_fdb: - esw_set_uplink_slave_ingress_root(NULL, slave_esw->dev); - return err; } @@ -2644,7 +2583,6 @@ void mlx5_eswitch_offloads_destroy_single_fdb(struct mlx5_eswitch *master_esw, { esw_unset_master_egress_rule(master_esw->dev); esw_set_slave_root_fdb(NULL, slave_esw->dev); - esw_set_uplink_slave_ingress_root(NULL, slave_esw->dev); } #define ESW_OFFLOADS_DEVCOM_PAIR (0) @@ -2841,6 +2779,19 @@ bool mlx5_esw_vport_match_metadata_supported(const struct mlx5_eswitch *esw) return true; } +#define MLX5_ESW_METADATA_RSVD_UPLINK 1 + +/* Share the same metadata for uplink's. This is fine because: + * (a) In shared FDB mode (LAG) both uplink's are treated the + * same and tagged with the same metadata. + * (b) In non shared FDB mode, packets from physical port0 + * cannot hit eswitch of PF1 and vice versa. + */ +static u32 mlx5_esw_match_metadata_reserved(struct mlx5_eswitch *esw) +{ + return MLX5_ESW_METADATA_RSVD_UPLINK; +} + u32 mlx5_esw_match_metadata_alloc(struct mlx5_eswitch *esw) { u32 vport_end_ida = (1 << ESW_VPORT_BITS) - 1; @@ -2855,8 +2806,10 @@ u32 mlx5_esw_match_metadata_alloc(struct mlx5_eswitch *esw) return 0; /* Metadata is 4 bits of PFNUM and 12 bits of unique id */ - /* Use only non-zero vport_id (1-4095) for all PF's */ - id = ida_alloc_range(&esw->offloads.vport_metadata_ida, 1, vport_end_ida, GFP_KERNEL); + /* Use only non-zero vport_id (2-4095) for all PF's */ + id = ida_alloc_range(&esw->offloads.vport_metadata_ida, + MLX5_ESW_METADATA_RSVD_UPLINK + 1, + vport_end_ida, GFP_KERNEL); if (id < 0) return 0; id = (pf_num << ESW_VPORT_BITS) | id; @@ -2874,7 +2827,11 @@ void mlx5_esw_match_metadata_free(struct mlx5_eswitch *esw, u32 metadata) static int esw_offloads_vport_metadata_setup(struct mlx5_eswitch *esw, struct mlx5_vport *vport) { - vport->default_metadata = mlx5_esw_match_metadata_alloc(esw); + if (vport->vport == MLX5_VPORT_UPLINK) + vport->default_metadata = mlx5_esw_match_metadata_reserved(esw); + else + vport->default_metadata = mlx5_esw_match_metadata_alloc(esw); + vport->metadata = vport->default_metadata; return vport->metadata ? 0 : -ENOSPC; } @@ -2885,6 +2842,9 @@ static void esw_offloads_vport_metadata_cleanup(struct mlx5_eswitch *esw, if (!vport->default_metadata) return; + if (vport->vport == MLX5_VPORT_UPLINK) + return; + WARN_ON(vport->metadata != vport->default_metadata); mlx5_esw_match_metadata_free(esw, vport->default_metadata); } @@ -3377,6 +3337,27 @@ static int eswitch_devlink_esw_mode_check(const struct mlx5_eswitch *esw) !mlx5_core_is_ecpf_esw_manager(esw->dev)) ? -EOPNOTSUPP : 0; } +/* FIXME: devl_unlock() followed by devl_lock() inside driver callback + * is never correct and prone to races. It's a transitional workaround, + * never repeat this pattern. + * + * This code MUST be fixed before removing devlink_mutex as it is safe + * to do only because of that mutex. + */ +static void mlx5_eswtich_mode_callback_enter(struct devlink *devlink, + struct mlx5_eswitch *esw) +{ + devl_unlock(devlink); + down_write(&esw->mode_lock); +} + +static void mlx5_eswtich_mode_callback_exit(struct devlink *devlink, + struct mlx5_eswitch *esw) +{ + up_write(&esw->mode_lock); + devl_lock(devlink); +} + int mlx5_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode, struct netlink_ext_ack *extack) { @@ -3391,6 +3372,15 @@ int mlx5_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode, if (esw_mode_from_devlink(mode, &mlx5_mode)) return -EINVAL; + /* FIXME: devl_unlock() followed by devl_lock() inside driver callback + * is never correct and prone to races. It's a transitional workaround, + * never repeat this pattern. + * + * This code MUST be fixed before removing devlink_mutex as it is safe + * to do only because of that mutex. + */ + devl_unlock(devlink); + mlx5_lag_disable_change(esw->dev); err = mlx5_esw_try_lock(esw); if (err < 0) { @@ -3421,6 +3411,7 @@ unlock: mlx5_esw_unlock(esw); enable_lag: mlx5_lag_enable_change(esw->dev); + devl_lock(devlink); return err; } @@ -3433,14 +3424,14 @@ int mlx5_devlink_eswitch_mode_get(struct devlink *devlink, u16 *mode) if (IS_ERR(esw)) return PTR_ERR(esw); - down_write(&esw->mode_lock); + mlx5_eswtich_mode_callback_enter(devlink, esw); err = eswitch_devlink_esw_mode_check(esw); if (err) goto unlock; err = esw_mode_to_devlink(esw->mode, mode); unlock: - up_write(&esw->mode_lock); + mlx5_eswtich_mode_callback_exit(devlink, esw); return err; } @@ -3487,7 +3478,7 @@ int mlx5_devlink_eswitch_inline_mode_set(struct devlink *devlink, u8 mode, if (IS_ERR(esw)) return PTR_ERR(esw); - down_write(&esw->mode_lock); + mlx5_eswtich_mode_callback_enter(devlink, esw); err = eswitch_devlink_esw_mode_check(esw); if (err) goto out; @@ -3524,11 +3515,11 @@ int mlx5_devlink_eswitch_inline_mode_set(struct devlink *devlink, u8 mode, goto out; esw->offloads.inline_mode = mlx5_mode; - up_write(&esw->mode_lock); + mlx5_eswtich_mode_callback_exit(devlink, esw); return 0; out: - up_write(&esw->mode_lock); + mlx5_eswtich_mode_callback_exit(devlink, esw); return err; } @@ -3541,14 +3532,14 @@ int mlx5_devlink_eswitch_inline_mode_get(struct devlink *devlink, u8 *mode) if (IS_ERR(esw)) return PTR_ERR(esw); - down_write(&esw->mode_lock); + mlx5_eswtich_mode_callback_enter(devlink, esw); err = eswitch_devlink_esw_mode_check(esw); if (err) goto unlock; err = esw_inline_mode_to_devlink(esw->offloads.inline_mode, mode); unlock: - up_write(&esw->mode_lock); + mlx5_eswtich_mode_callback_exit(devlink, esw); return err; } @@ -3564,7 +3555,7 @@ int mlx5_devlink_eswitch_encap_mode_set(struct devlink *devlink, if (IS_ERR(esw)) return PTR_ERR(esw); - down_write(&esw->mode_lock); + mlx5_eswtich_mode_callback_enter(devlink, esw); err = eswitch_devlink_esw_mode_check(esw); if (err) goto unlock; @@ -3610,7 +3601,7 @@ int mlx5_devlink_eswitch_encap_mode_set(struct devlink *devlink, } unlock: - up_write(&esw->mode_lock); + mlx5_eswtich_mode_callback_exit(devlink, esw); return err; } @@ -3624,15 +3615,14 @@ int mlx5_devlink_eswitch_encap_mode_get(struct devlink *devlink, if (IS_ERR(esw)) return PTR_ERR(esw); - - down_write(&esw->mode_lock); + mlx5_eswtich_mode_callback_enter(devlink, esw); err = eswitch_devlink_esw_mode_check(esw); if (err) goto unlock; *encap = esw->offloads.encap; unlock: - up_write(&esw->mode_lock); + mlx5_eswtich_mode_callback_exit(devlink, esw); return err; } |