1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(C) 2020 Marvell International Ltd. 3 */ 4 5 #include <errno.h> 6 #include <stdlib.h> 7 8 #include <rte_ethdev.h> 9 #include <rte_graph.h> 10 11 #include "rte_node_eth_api.h" 12 13 #include "ethdev_rx_priv.h" 14 #include "ethdev_tx_priv.h" 15 #include "ip4_rewrite_priv.h" 16 #include "ip6_rewrite_priv.h" 17 #include "node_private.h" 18 19 static struct ethdev_ctrl { 20 uint16_t nb_graphs; 21 } ctrl; 22 23 int 24 rte_node_eth_config(struct rte_node_ethdev_config *conf, uint16_t nb_confs, 25 uint16_t nb_graphs) 26 { 27 struct rte_node_register *ip4_rewrite_node; 28 struct rte_node_register *ip6_rewrite_node; 29 struct ethdev_tx_node_main *tx_node_data; 30 uint16_t tx_q_used, rx_q_used, port_id; 31 struct rte_node_register *tx_node; 32 char name[RTE_NODE_NAMESIZE]; 33 const char *next_nodes = name; 34 struct rte_mempool *mp; 35 int i, j, rc; 36 uint32_t id; 37 38 ip4_rewrite_node = ip4_rewrite_node_get(); 39 ip6_rewrite_node = ip6_rewrite_node_get(); 40 tx_node_data = ethdev_tx_node_data_get(); 41 tx_node = ethdev_tx_node_get(); 42 for (i = 0; i < nb_confs; i++) { 43 port_id = conf[i].port_id; 44 45 if (!rte_eth_dev_is_valid_port(port_id)) 46 return -EINVAL; 47 48 /* Check for mbuf minimum private size requirement */ 49 for (j = 0; j < conf[i].mp_count; j++) { 50 mp = conf[i].mp[j]; 51 if (!mp) 52 continue; 53 /* Check for minimum private space */ 54 if (rte_pktmbuf_priv_size(mp) < NODE_MBUF_PRIV2_SIZE) { 55 node_err("ethdev", 56 "Minimum mbuf priv size requirement not met by mp %s", 57 mp->name); 58 return -EINVAL; 59 } 60 } 61 62 rx_q_used = conf[i].num_rx_queues; 63 tx_q_used = conf[i].num_tx_queues; 64 /* Check if we have a txq for each worker */ 65 if (tx_q_used < nb_graphs) 66 return -EINVAL; 67 68 /* Create node for each rx port queue pair */ 69 for (j = 0; j < rx_q_used; j++) { 70 struct ethdev_rx_node_main *rx_node_data; 71 struct rte_node_register *rx_node; 72 ethdev_rx_node_elem_t *elem; 73 74 rx_node_data = ethdev_rx_get_node_data_get(); 75 rx_node = ethdev_rx_node_get(); 76 snprintf(name, sizeof(name), "%u-%u", port_id, j); 77 /* Clone a new rx node with same edges as parent */ 78 id = rte_node_clone(rx_node->id, name); 79 if (id == RTE_NODE_ID_INVALID) 80 return -EIO; 81 82 /* Add it to list of ethdev rx nodes for lookup */ 83 elem = malloc(sizeof(ethdev_rx_node_elem_t)); 84 if (elem == NULL) 85 return -ENOMEM; 86 memset(elem, 0, sizeof(ethdev_rx_node_elem_t)); 87 elem->ctx.port_id = port_id; 88 elem->ctx.queue_id = j; 89 elem->ctx.cls_next = ETHDEV_RX_NEXT_PKT_CLS; 90 elem->nid = id; 91 elem->next = rx_node_data->head; 92 rx_node_data->head = elem; 93 94 node_dbg("ethdev", "Rx node %s-%s: is at %u", 95 rx_node->name, name, id); 96 } 97 98 /* Create a per port tx node from base node */ 99 snprintf(name, sizeof(name), "%u", port_id); 100 /* Clone a new node with same edges as parent */ 101 id = rte_node_clone(tx_node->id, name); 102 tx_node_data->nodes[port_id] = id; 103 104 node_dbg("ethdev", "Tx node %s-%s: is at %u", tx_node->name, 105 name, id); 106 107 /* Prepare the actual name of the cloned node */ 108 snprintf(name, sizeof(name), "ethdev_tx-%u", port_id); 109 110 /* Add this tx port node as next to ip4_rewrite_node */ 111 rte_node_edge_update(ip4_rewrite_node->id, RTE_EDGE_ID_INVALID, 112 &next_nodes, 1); 113 /* Assuming edge id is the last one alloc'ed */ 114 rc = ip4_rewrite_set_next( 115 port_id, rte_node_edge_count(ip4_rewrite_node->id) - 1); 116 if (rc < 0) 117 return rc; 118 119 /* Add this tx port node as next to ip6_rewrite_node */ 120 rte_node_edge_update(ip6_rewrite_node->id, RTE_EDGE_ID_INVALID, 121 &next_nodes, 1); 122 /* Assuming edge id is the last one alloc'ed */ 123 rc = ip6_rewrite_set_next( 124 port_id, rte_node_edge_count(ip6_rewrite_node->id) - 1); 125 if (rc < 0) 126 return rc; 127 128 } 129 130 ctrl.nb_graphs = nb_graphs; 131 return 0; 132 } 133 134 int 135 rte_node_ethdev_rx_next_update(rte_node_t id, const char *edge_name) 136 { 137 struct ethdev_rx_node_main *data; 138 ethdev_rx_node_elem_t *elem; 139 char **next_nodes; 140 int rc = -EINVAL; 141 uint16_t i = 0; 142 uint32_t size; 143 144 if (edge_name == NULL) 145 goto exit; 146 147 size = rte_node_edge_get(id, NULL); 148 149 if (size == RTE_NODE_ID_INVALID) 150 goto exit; 151 152 next_nodes = calloc((size / sizeof(char *)) + 1, sizeof(*next_nodes)); 153 if (next_nodes == NULL) { 154 rc = -ENOMEM; 155 goto exit; 156 } 157 158 size = rte_node_edge_get(id, next_nodes); 159 160 while (next_nodes[i] != NULL) { 161 if (strcmp(edge_name, next_nodes[i]) == 0) { 162 data = ethdev_rx_get_node_data_get(); 163 elem = data->head; 164 while (elem->next != data->head) { 165 if (elem->nid == id) { 166 elem->ctx.cls_next = i; 167 rc = 0; 168 goto found; 169 } 170 elem = elem->next; 171 } 172 } 173 i++; 174 } 175 found: 176 free(next_nodes); 177 exit: 178 return rc; 179 } 180