diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/fs_core.c')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/fs_core.c | 135 |
1 files changed, 95 insertions, 40 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c index 9620c8650e13..13e2fb79c21a 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c @@ -254,7 +254,7 @@ static void del_sw_flow_group(struct fs_node *node); static void del_sw_fte(struct fs_node *node); static void del_sw_prio(struct fs_node *node); static void del_sw_ns(struct fs_node *node); -/* Delete rule (destination) is special case that +/* Delete rule (destination) is special case that * requires to lock the FTE for all the deletion process. */ static void del_sw_hw_rule(struct fs_node *node); @@ -379,6 +379,12 @@ static struct fs_prio *find_prio(struct mlx5_flow_namespace *ns, return NULL; } +static bool is_fwd_next_action(u32 action) +{ + return action & (MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO | + MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS); +} + static bool check_valid_spec(const struct mlx5_flow_spec *spec) { int i; @@ -499,7 +505,7 @@ static void del_sw_hw_rule(struct fs_node *node) fs_get_obj(rule, node); fs_get_obj(fte, rule->node.parent); trace_mlx5_fs_del_rule(rule); - if (rule->sw_action == MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO) { + if (is_fwd_next_action(rule->sw_action)) { mutex_lock(&rule->dest_attr.ft->lock); list_del(&rule->next_ft); mutex_unlock(&rule->dest_attr.ft->lock); @@ -823,6 +829,36 @@ static struct mlx5_flow_table *find_prev_chained_ft(struct fs_prio *prio) return find_closest_ft(prio, true); } +static struct fs_prio *find_fwd_ns_prio(struct mlx5_flow_root_namespace *root, + struct mlx5_flow_namespace *ns) +{ + struct mlx5_flow_namespace *root_ns = &root->ns; + struct fs_prio *iter_prio; + struct fs_prio *prio; + + fs_get_obj(prio, ns->node.parent); + list_for_each_entry(iter_prio, &root_ns->node.children, node.list) { + if (iter_prio == prio && + !list_is_last(&prio->node.children, &iter_prio->node.list)) + return list_next_entry(iter_prio, node.list); + } + return NULL; +} + +static struct mlx5_flow_table *find_next_fwd_ft(struct mlx5_flow_table *ft, + struct mlx5_flow_act *flow_act) +{ + struct mlx5_flow_root_namespace *root = find_root(&ft->node); + struct fs_prio *prio; + + if (flow_act->action & MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS) + prio = find_fwd_ns_prio(root, ft->ns); + else + fs_get_obj(prio, ft->node.parent); + + return (prio) ? find_next_chained_ft(prio) : NULL; +} + static int connect_fts_in_prio(struct mlx5_core_dev *dev, struct fs_prio *prio, struct mlx5_flow_table *ft) @@ -973,6 +1009,10 @@ static int connect_fwd_rules(struct mlx5_core_dev *dev, list_splice_init(&old_next_ft->fwd_rules, &new_next_ft->fwd_rules); mutex_unlock(&old_next_ft->lock); list_for_each_entry(iter, &new_next_ft->fwd_rules, next_ft) { + if ((iter->sw_action & MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS) && + iter->ft->ns == new_next_ft->ns) + continue; + err = _mlx5_modify_rule_destination(iter, &dest); if (err) pr_err("mlx5_core: failed to modify rule to point on flow table %d\n", @@ -1074,6 +1114,7 @@ static struct mlx5_flow_table *__mlx5_create_flow_table(struct mlx5_flow_namespa next_ft = unmanaged ? ft_attr->next_ft : find_next_chained_ft(fs_prio); ft->def_miss_action = ns->def_miss_action; + ft->ns = ns; err = root->cmds->create_flow_table(root, ft, log_table_sz, next_ft); if (err) goto free_ft; @@ -1752,11 +1793,13 @@ skip_search: list_for_each_entry(iter, match_head, list) { g = iter->g; - if (!g->node.active) - continue; - nested_down_write_ref_node(&g->node, FS_LOCK_PARENT); + if (!g->node.active) { + up_write_ref_node(&g->node, false); + continue; + } + err = insert_fte(g, fte); if (err) { up_write_ref_node(&g->node, false); @@ -1896,48 +1939,59 @@ mlx5_add_flow_rules(struct mlx5_flow_table *ft, { struct mlx5_flow_root_namespace *root = find_root(&ft->node); static const struct mlx5_flow_spec zero_spec = {}; - struct mlx5_flow_destination gen_dest = {}; + struct mlx5_flow_destination *gen_dest = NULL; struct mlx5_flow_table *next_ft = NULL; struct mlx5_flow_handle *handle = NULL; u32 sw_action = flow_act->action; - struct fs_prio *prio; + int i; if (!spec) spec = &zero_spec; - fs_get_obj(prio, ft->node.parent); - if (flow_act->action == MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO) { - if (!fwd_next_prio_supported(ft)) - return ERR_PTR(-EOPNOTSUPP); - if (num_dest) - return ERR_PTR(-EINVAL); - mutex_lock(&root->chain_lock); - next_ft = find_next_chained_ft(prio); - if (next_ft) { - gen_dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; - gen_dest.ft = next_ft; - dest = &gen_dest; - num_dest = 1; - flow_act->action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; - } else { - mutex_unlock(&root->chain_lock); - return ERR_PTR(-EOPNOTSUPP); - } - } + if (!is_fwd_next_action(sw_action)) + return _mlx5_add_flow_rules(ft, spec, flow_act, dest, num_dest); - handle = _mlx5_add_flow_rules(ft, spec, flow_act, dest, num_dest); + if (!fwd_next_prio_supported(ft)) + return ERR_PTR(-EOPNOTSUPP); - if (sw_action == MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO) { - if (!IS_ERR_OR_NULL(handle) && - (list_empty(&handle->rule[0]->next_ft))) { - mutex_lock(&next_ft->lock); - list_add(&handle->rule[0]->next_ft, - &next_ft->fwd_rules); - mutex_unlock(&next_ft->lock); - handle->rule[0]->sw_action = MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO; - } - mutex_unlock(&root->chain_lock); - } + mutex_lock(&root->chain_lock); + next_ft = find_next_fwd_ft(ft, flow_act); + if (!next_ft) { + handle = ERR_PTR(-EOPNOTSUPP); + goto unlock; + } + + gen_dest = kcalloc(num_dest + 1, sizeof(*dest), + GFP_KERNEL); + if (!gen_dest) { + handle = ERR_PTR(-ENOMEM); + goto unlock; + } + for (i = 0; i < num_dest; i++) + gen_dest[i] = dest[i]; + gen_dest[i].type = + MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; + gen_dest[i].ft = next_ft; + dest = gen_dest; + num_dest++; + flow_act->action &= ~(MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO | + MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS); + flow_act->action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; + handle = _mlx5_add_flow_rules(ft, spec, flow_act, dest, num_dest); + if (IS_ERR(handle)) + goto unlock; + + if (list_empty(&handle->rule[num_dest - 1]->next_ft)) { + mutex_lock(&next_ft->lock); + list_add(&handle->rule[num_dest - 1]->next_ft, + &next_ft->fwd_rules); + mutex_unlock(&next_ft->lock); + handle->rule[num_dest - 1]->sw_action = sw_action; + handle->rule[num_dest - 1]->ft = ft; + } +unlock: + mutex_unlock(&root->chain_lock); + kfree(gen_dest); return handle; } EXPORT_SYMBOL(mlx5_add_flow_rules); @@ -2367,7 +2421,7 @@ static struct mlx5_flow_root_namespace struct mlx5_flow_root_namespace *root_ns; struct mlx5_flow_namespace *ns; - if (mlx5_accel_ipsec_device_caps(steering->dev) & MLX5_ACCEL_IPSEC_CAP_DEVICE && + if (mlx5_fpga_ipsec_device_caps(steering->dev) & MLX5_ACCEL_IPSEC_CAP_DEVICE && (table_type == FS_FT_NIC_RX || table_type == FS_FT_NIC_TX)) cmds = mlx5_fs_cmd_get_default_ipsec_fpga_cmds(table_type); @@ -2951,7 +3005,8 @@ int mlx5_init_fs(struct mlx5_core_dev *dev) goto err; } - if (MLX5_IPSEC_DEV(dev) || MLX5_CAP_FLOWTABLE_NIC_TX(dev, ft_support)) { + if (mlx5_fpga_ipsec_device_caps(steering->dev) & MLX5_ACCEL_IPSEC_CAP_DEVICE || + MLX5_CAP_FLOWTABLE_NIC_TX(dev, ft_support)) { err = init_egress_root_ns(steering); if (err) goto err; |