lib/librte_node/ethdev_ctrl.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(C) 2020 Marvell International Ltd.
   3  */
   4
   5 #include <rte_debug.h>
   6 #include <rte_ethdev.h>
   7 #include <rte_ether.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 "node_private.h"
  15
  16 static struct ethdev_ctrl {
  17         uint16_t nb_graphs;
  18 } ctrl;
  19
  20 int
  21 rte_node_eth_config(struct rte_node_ethdev_config *conf, uint16_t nb_confs,
  22                     uint16_t nb_graphs)
  23 {
  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         struct rte_mempool *mp;
  29         uint32_t id;
  30         int i, j;
  31
  32         tx_node_data = ethdev_tx_node_data_get();
  33         tx_node = ethdev_tx_node_get();
  34         for (i = 0; i < nb_confs; i++) {
  35                 port_id = conf[i].port_id;
  36
  37                 if (!rte_eth_dev_is_valid_port(port_id))
  38                         return -EINVAL;
  39
  40                 /* Check for mbuf minimum private size requirement */
  41                 for (j = 0; j < conf[i].mp_count; j++) {
  42                         mp = conf[i].mp[j];
  43                         if (!mp)
  44                                 continue;
  45                         /* Check for minimum private space */
  46                         if (rte_pktmbuf_priv_size(mp) < NODE_MBUF_PRIV2_SIZE) {
  47                                 node_err("ethdev",
  48                                          "Minimum mbuf priv size requirement not met by mp %s",
  49                                          mp->name);
  50                                 return -EINVAL;
  51                         }
  52                 }
  53
  54                 rx_q_used = conf[i].num_rx_queues;
  55                 tx_q_used = conf[i].num_tx_queues;
  56                 /* Check if we have a txq for each worker */
  57                 if (tx_q_used < nb_graphs)
  58                         return -EINVAL;
  59
  60                 /* Create node for each rx port queue pair */
  61                 for (j = 0; j < rx_q_used; j++) {
  62                         struct ethdev_rx_node_main *rx_node_data;
  63                         struct rte_node_register *rx_node;
  64                         ethdev_rx_node_elem_t *elem;
  65
  66                         rx_node_data = ethdev_rx_get_node_data_get();
  67                         rx_node = ethdev_rx_node_get();
  68                         snprintf(name, sizeof(name), "%u-%u", port_id, j);
  69                         /* Clone a new rx node with same edges as parent */
  70                         id = rte_node_clone(rx_node->id, name);
  71                         if (id == RTE_NODE_ID_INVALID)
  72                                 return -EIO;
  73
  74                         /* Add it to list of ethdev rx nodes for lookup */
  75                         elem = malloc(sizeof(ethdev_rx_node_elem_t));
  76                         memset(elem, 0, sizeof(ethdev_rx_node_elem_t));
  77                         elem->ctx.port_id = port_id;
  78                         elem->ctx.queue_id = j;
  79                         elem->nid = id;
  80                         elem->next = rx_node_data->head;
  81                         rx_node_data->head = elem;
  82
  83                         node_dbg("ethdev", "Rx node %s-%s: is at %u",
  84                                  rx_node->name, name, id);
  85                 }
  86
  87                 /* Create a per port tx node from base node */
  88                 snprintf(name, sizeof(name), "%u", port_id);
  89                 /* Clone a new node with same edges as parent */
  90                 id = rte_node_clone(tx_node->id, name);
  91                 tx_node_data->nodes[port_id] = id;
  92
  93                 node_dbg("ethdev", "Tx node %s-%s: is at %u", tx_node->name,
  94                          name, id);
  95         }
  96
  97         ctrl.nb_graphs = nb_graphs;
  98         return 0;
  99 }