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