1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(C) 2020 Marvell International Ltd. 3 */ 4 5 #include <stdlib.h> 6 7 #include <rte_ethdev.h> 8 #include <rte_graph.h> 9 10 #include "rte_node_eth_api.h" 11 12 #include "ethdev_rx_priv.h" 13 #include "ethdev_tx_priv.h" 14 #include "ip4_rewrite_priv.h" 15 #include "ip6_rewrite_priv.h" 16 #include "node_private.h" 17 18 static struct ethdev_ctrl { 19 uint16_t nb_graphs; 20 } ctrl; 21 22 int 23 rte_node_eth_config(struct rte_node_ethdev_config *conf, uint16_t nb_confs, 24 uint16_t nb_graphs) 25 { 26 struct rte_node_register *ip4_rewrite_node; 27 struct rte_node_register *ip6_rewrite_node; 28 struct ethdev_tx_node_main *tx_node_data; 29 uint16_t tx_q_used, rx_q_used, port_id; 30 struct rte_node_register *tx_node; 31 char name[RTE_NODE_NAMESIZE]; 32 const char *next_nodes = name; 33 struct rte_mempool *mp; 34 int i, j, rc; 35 uint32_t id; 36 37 ip4_rewrite_node = ip4_rewrite_node_get(); 38 ip6_rewrite_node = ip6_rewrite_node_get(); 39 tx_node_data = ethdev_tx_node_data_get(); 40 tx_node = ethdev_tx_node_get(); 41 for (i = 0; i < nb_confs; i++) { 42 port_id = conf[i].port_id; 43 44 if (!rte_eth_dev_is_valid_port(port_id)) 45 return -EINVAL; 46 47 /* Check for mbuf minimum private size requirement */ 48 for (j = 0; j < conf[i].mp_count; j++) { 49 mp = conf[i].mp[j]; 50 if (!mp) 51 continue; 52 /* Check for minimum private space */ 53 if (rte_pktmbuf_priv_size(mp) < NODE_MBUF_PRIV2_SIZE) { 54 node_err("ethdev", 55 "Minimum mbuf priv size requirement not met by mp %s", 56 mp->name); 57 return -EINVAL; 58 } 59 } 60 61 rx_q_used = conf[i].num_rx_queues; 62 tx_q_used = conf[i].num_tx_queues; 63 /* Check if we have a txq for each worker */ 64 if (tx_q_used < nb_graphs) 65 return -EINVAL; 66 67 /* Create node for each rx port queue pair */ 68 for (j = 0; j < rx_q_used; j++) { 69 struct ethdev_rx_node_main *rx_node_data; 70 struct rte_node_register *rx_node; 71 ethdev_rx_node_elem_t *elem; 72 73 rx_node_data = ethdev_rx_get_node_data_get(); 74 rx_node = ethdev_rx_node_get(); 75 snprintf(name, sizeof(name), "%u-%u", port_id, j); 76 /* Clone a new rx node with same edges as parent */ 77 id = rte_node_clone(rx_node->id, name); 78 if (id == RTE_NODE_ID_INVALID) 79 return -EIO; 80 81 /* Add it to list of ethdev rx nodes for lookup */ 82 elem = malloc(sizeof(ethdev_rx_node_elem_t)); 83 if (elem == NULL) 84 return -ENOMEM; 85 memset(elem, 0, sizeof(ethdev_rx_node_elem_t)); 86 elem->ctx.port_id = port_id; 87 elem->ctx.queue_id = j; 88 elem->ctx.cls_next = ETHDEV_RX_NEXT_PKT_CLS; 89 elem->nid = id; 90 elem->next = rx_node_data->head; 91 rx_node_data->head = elem; 92 93 node_dbg("ethdev", "Rx node %s-%s: is at %u", 94 rx_node->name, name, id); 95 } 96 97 /* Create a per port tx node from base node */ 98 snprintf(name, sizeof(name), "%u", port_id); 99 /* Clone a new node with same edges as parent */ 100 id = rte_node_clone(tx_node->id, name); 101 tx_node_data->nodes[port_id] = id; 102 103 node_dbg("ethdev", "Tx node %s-%s: is at %u", tx_node->name, 104 name, id); 105 106 /* Prepare the actual name of the cloned node */ 107 snprintf(name, sizeof(name), "ethdev_tx-%u", port_id); 108 109 /* Add this tx port node as next to ip4_rewrite_node */ 110 rte_node_edge_update(ip4_rewrite_node->id, RTE_EDGE_ID_INVALID, 111 &next_nodes, 1); 112 /* Assuming edge id is the last one alloc'ed */ 113 rc = ip4_rewrite_set_next( 114 port_id, rte_node_edge_count(ip4_rewrite_node->id) - 1); 115 if (rc < 0) 116 return rc; 117 118 /* Add this tx port node as next to ip6_rewrite_node */ 119 rte_node_edge_update(ip6_rewrite_node->id, RTE_EDGE_ID_INVALID, 120 &next_nodes, 1); 121 /* Assuming edge id is the last one alloc'ed */ 122 rc = ip6_rewrite_set_next( 123 port_id, rte_node_edge_count(ip6_rewrite_node->id) - 1); 124 if (rc < 0) 125 return rc; 126 127 } 128 129 ctrl.nb_graphs = nb_graphs; 130 return 0; 131 } 132