* Make sure a flow rule is supported and initialize associated structure. * * @param priv * Pointer to private structure. * @param[in] attr * Flow rule attributes. * @param[in] pattern * Pattern specification (list terminated by the END pattern item). * @param[in] actions * Associated actions (list terminated by the END action). * @param[out] error * Perform verbose error repo
| 661 | * 0 on success, a negative errno value otherwise and rte_errno is set. |
| 662 | */ |
| 663 | static int |
| 664 | mlx4_flow_prepare(struct mlx4_priv *priv, |
| 665 | const struct rte_flow_attr *attr, |
| 666 | const struct rte_flow_item pattern[], |
| 667 | const struct rte_flow_action actions[], |
| 668 | struct rte_flow_error *error, |
| 669 | struct rte_flow **addr) |
| 670 | { |
| 671 | const struct rte_flow_item *item; |
| 672 | const struct rte_flow_action *action; |
| 673 | const struct mlx4_flow_proc_item *proc; |
| 674 | struct rte_flow temp = { .ibv_attr_size = sizeof(*temp.ibv_attr) }; |
| 675 | struct rte_flow *flow = &temp; |
| 676 | const char *msg = NULL; |
| 677 | int overlap; |
| 678 | |
| 679 | if (attr->group) |
| 680 | return rte_flow_error_set |
| 681 | (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_GROUP, |
| 682 | NULL, "groups are not supported"); |
| 683 | if (attr->priority > MLX4_FLOW_PRIORITY_LAST) |
| 684 | return rte_flow_error_set |
| 685 | (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY, |
| 686 | NULL, "maximum priority level is " |
| 687 | MLX4_STR_EXPAND(MLX4_FLOW_PRIORITY_LAST)); |
| 688 | if (attr->egress) |
| 689 | return rte_flow_error_set |
| 690 | (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, |
| 691 | NULL, "egress is not supported"); |
| 692 | if (attr->transfer) |
| 693 | return rte_flow_error_set |
| 694 | (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER, |
| 695 | NULL, "transfer is not supported"); |
| 696 | if (!attr->ingress) |
| 697 | return rte_flow_error_set |
| 698 | (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_INGRESS, |
| 699 | NULL, "only ingress is supported"); |
| 700 | fill: |
| 701 | overlap = 0; |
| 702 | proc = mlx4_flow_proc_item_list; |
| 703 | flow->priority = attr->priority; |
| 704 | /* Go over pattern. */ |
| 705 | for (item = pattern; item->type; ++item) { |
| 706 | const struct mlx4_flow_proc_item *next = NULL; |
| 707 | unsigned int i; |
| 708 | int err; |
| 709 | |
| 710 | if (item->type == RTE_FLOW_ITEM_TYPE_VOID) |
| 711 | continue; |
| 712 | if (item->type == MLX4_FLOW_ITEM_TYPE_INTERNAL) { |
| 713 | flow->internal = 1; |
| 714 | continue; |
| 715 | } |
| 716 | if ((item->type != RTE_FLOW_ITEM_TYPE_VLAN && flow->promisc) || |
| 717 | flow->allmulti) { |
| 718 | msg = "mlx4 does not support additional matching" |
| 719 | " criteria combined with indiscriminate" |
| 720 | " matching on Ethernet headers"; |
no test coverage detected