dpdk/drivers/net/nfb/nfb_tx.c
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   1/* SPDX-License-Identifier: BSD-3-Clause
   2 * Copyright(c) 2019 Cesnet
   3 * Copyright(c) 2019 Netcope Technologies, a.s. <info@netcope.com>
   4 * All rights reserved.
   5 */
   6
   7#include "nfb_tx.h"
   8#include "nfb.h"
   9
  10int
  11nfb_eth_tx_queue_start(struct rte_eth_dev *dev, uint16_t txq_id)
  12{
  13        struct ndp_tx_queue *txq = dev->data->tx_queues[txq_id];
  14        int ret;
  15
  16        if (txq->queue == NULL) {
  17                RTE_LOG(ERR, PMD, "RX NDP queue is NULL!\n");
  18                return -EINVAL;
  19        }
  20
  21        ret = ndp_queue_start(txq->queue);
  22        if (ret != 0)
  23                goto err;
  24        dev->data->tx_queue_state[txq_id] = RTE_ETH_QUEUE_STATE_STARTED;
  25        return 0;
  26
  27err:
  28        return -EINVAL;
  29}
  30
  31int
  32nfb_eth_tx_queue_stop(struct rte_eth_dev *dev, uint16_t txq_id)
  33{
  34        struct ndp_tx_queue *txq = dev->data->tx_queues[txq_id];
  35        int ret;
  36
  37        if (txq->queue == NULL) {
  38                RTE_LOG(ERR, PMD, "TX NDP queue is NULL!\n");
  39                return -EINVAL;
  40        }
  41
  42        ret = ndp_queue_stop(txq->queue);
  43        if (ret != 0)
  44                return -EINVAL;
  45        dev->data->tx_queue_state[txq_id] = RTE_ETH_QUEUE_STATE_STOPPED;
  46        return 0;
  47}
  48
  49int
  50nfb_eth_tx_queue_setup(struct rte_eth_dev *dev,
  51        uint16_t tx_queue_id,
  52        uint16_t nb_tx_desc __rte_unused,
  53        unsigned int socket_id,
  54        const struct rte_eth_txconf *tx_conf __rte_unused)
  55{
  56        struct pmd_internals *internals = dev->data->dev_private;
  57        int ret;
  58        struct ndp_tx_queue *txq;
  59
  60        txq = rte_zmalloc_socket("ndp tx queue",
  61                sizeof(struct ndp_tx_queue),
  62                RTE_CACHE_LINE_SIZE, socket_id);
  63
  64        if (txq == NULL) {
  65                RTE_LOG(ERR, PMD, "rte_zmalloc_socket() failed for tx queue id "
  66                        "%" PRIu16 "!\n", tx_queue_id);
  67                return -ENOMEM;
  68        }
  69
  70        ret = nfb_eth_tx_queue_init(internals->nfb,
  71                tx_queue_id,
  72                txq);
  73
  74        if (ret == 0)
  75                dev->data->tx_queues[tx_queue_id] = txq;
  76        else
  77                rte_free(txq);
  78
  79        return ret;
  80}
  81
  82int
  83nfb_eth_tx_queue_init(struct nfb_device *nfb,
  84        uint16_t tx_queue_id,
  85        struct ndp_tx_queue *txq)
  86{
  87        if (nfb == NULL)
  88                return -EINVAL;
  89
  90        txq->queue = ndp_open_tx_queue(nfb, tx_queue_id);
  91        if (txq->queue == NULL)
  92                return -EINVAL;
  93
  94        txq->nfb = nfb;
  95        txq->tx_queue_id = tx_queue_id;
  96
  97        txq->tx_pkts = 0;
  98        txq->tx_bytes = 0;
  99        txq->err_pkts = 0;
 100
 101        return 0;
 102}
 103
 104void
 105nfb_eth_tx_queue_release(void *q)
 106{
 107        struct ndp_tx_queue *txq = (struct ndp_tx_queue *)q;
 108        if (txq->queue != NULL) {
 109                ndp_close_tx_queue(txq->queue);
 110                rte_free(txq);
 111                txq->queue = NULL;
 112        }
 113}
 114