drivers/net/nfb/nfb_rx.c

   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_rx.h"
   8 #include "nfb.h"
   9
  10 int
  11 nfb_eth_rx_queue_start(struct rte_eth_dev *dev, uint16_t rxq_id)
  12 {
  13         struct ndp_rx_queue *rxq = dev->data->rx_queues[rxq_id];
  14         int ret;
  15
  16         if (rxq->queue == NULL) {
  17                 RTE_LOG(ERR, PMD, "RX NDP queue is NULL!\n");
  18                 return -EINVAL;
  19         }
  20
  21         ret = ndp_queue_start(rxq->queue);
  22         if (ret != 0)
  23                 goto err;
  24         dev->data->rx_queue_state[rxq_id] = RTE_ETH_QUEUE_STATE_STARTED;
  25         return 0;
  26
  27 err:
  28         return -EINVAL;
  29 }
  30
  31 int
  32 nfb_eth_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rxq_id)
  33 {
  34         struct ndp_rx_queue *rxq = dev->data->rx_queues[rxq_id];
  35         int ret;
  36
  37         if (rxq->queue == NULL) {
  38                 RTE_LOG(ERR, PMD, "RX NDP queue is NULL!\n");
  39                 return -EINVAL;
  40         }
  41
  42         ret = ndp_queue_stop(rxq->queue);
  43         if (ret != 0)
  44                 return -EINVAL;
  45
  46         dev->data->rx_queue_state[rxq_id] = RTE_ETH_QUEUE_STATE_STOPPED;
  47         return 0;
  48 }
  49
  50 int
  51 nfb_eth_rx_queue_setup(struct rte_eth_dev *dev,
  52                 uint16_t rx_queue_id,
  53                 uint16_t nb_rx_desc __rte_unused,
  54                 unsigned int socket_id,
  55                 const struct rte_eth_rxconf *rx_conf __rte_unused,
  56                 struct rte_mempool *mb_pool)
  57 {
  58         struct pmd_internals *internals = dev->data->dev_private;
  59
  60         struct ndp_rx_queue *rxq;
  61         int ret;
  62
  63         rxq = rte_zmalloc_socket("ndp rx queue",
  64                         sizeof(struct ndp_rx_queue),
  65                         RTE_CACHE_LINE_SIZE, socket_id);
  66
  67         if (rxq == NULL) {
  68                 RTE_LOG(ERR, PMD, "rte_zmalloc_socket() failed for rx queue id "
  69                                 "%" PRIu16 "!\n", rx_queue_id);
  70                 return -ENOMEM;
  71         }
  72
  73         ret = nfb_eth_rx_queue_init(internals->nfb,
  74                 rx_queue_id,
  75                 dev->data->port_id,
  76                 mb_pool,
  77                 rxq);
  78
  79         if (ret == 0)
  80                 dev->data->rx_queues[rx_queue_id] = rxq;
  81         else
  82                 rte_free(rxq);
  83
  84         return ret;
  85 }
  86
  87 int
  88 nfb_eth_rx_queue_init(struct nfb_device *nfb,
  89                 uint16_t rx_queue_id,
  90                 uint16_t port_id,
  91                 struct rte_mempool *mb_pool,
  92                 struct ndp_rx_queue *rxq)
  93 {
  94         const struct rte_pktmbuf_pool_private *mbp_priv =
  95                 rte_mempool_get_priv(mb_pool);
  96
  97         if (nfb == NULL)
  98                 return -EINVAL;
  99
 100         rxq->queue = ndp_open_rx_queue(nfb, rx_queue_id);
 101         if (rxq->queue == NULL)
 102                 return -EINVAL;
 103
 104         rxq->nfb = nfb;
 105         rxq->rx_queue_id = rx_queue_id;
 106         rxq->in_port = port_id;
 107         rxq->mb_pool = mb_pool;
 108         rxq->buf_size = (uint16_t)(mbp_priv->mbuf_data_room_size -
 109                 RTE_PKTMBUF_HEADROOM);
 110
 111         rxq->rx_pkts = 0;
 112         rxq->rx_bytes = 0;
 113         rxq->err_pkts = 0;
 114
 115         return 0;
 116 }
 117
 118 void
 119 nfb_eth_rx_queue_release(void *q)
 120 {
 121         struct ndp_rx_queue *rxq = (struct ndp_rx_queue *)q;
 122         if (rxq->queue != NULL) {
 123                 ndp_close_rx_queue(rxq->queue);
 124                 rte_free(rxq);
 125                 rxq->queue = NULL;
 126         }
 127 }