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