drivers/net/octeontx/octeontx_rxtx.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2017 Cavium, Inc
   3  */
   4
   5 #include <stdint.h>
   6 #include <stdio.h>
   7 #include <stdlib.h>
   8 #include <unistd.h>
   9
  10 #include <rte_atomic.h>
  11 #include <rte_common.h>
  12 #include <rte_ethdev_driver.h>
  13 #include <rte_ether.h>
  14 #include <rte_log.h>
  15 #include <rte_mbuf.h>
  16 #include <rte_prefetch.h>
  17
  18 #include "octeontx_ethdev.h"
  19 #include "octeontx_rxtx.h"
  20 #include "octeontx_logs.h"
  21
  22 uint16_t __hot
  23 octeontx_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
  24 {
  25         int count;
  26         struct octeontx_txq *txq = tx_queue;
  27         octeontx_dq_t *dq = &txq->dq;
  28         int res;
  29
  30         count = 0;
  31
  32         rte_cio_wmb();
  33         while (count < nb_pkts) {
  34                 res = __octeontx_xmit_pkts(dq->lmtline_va, dq->ioreg_va,
  35                                            dq->fc_status_va,
  36                                            tx_pkts[count]);
  37                 if (res < 0)
  38                         break;
  39
  40                 count++;
  41         }
  42
  43         return count; /* return number of pkts transmitted */
  44 }
  45
  46 uint16_t __hot
  47 octeontx_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
  48 {
  49         struct octeontx_rxq *rxq;
  50         struct rte_event ev;
  51         size_t count;
  52         uint16_t valid_event;
  53
  54         rxq = rx_queue;
  55         count = 0;
  56         while (count < nb_pkts) {
  57                 valid_event = rte_event_dequeue_burst(rxq->evdev,
  58                                                         rxq->ev_ports, &ev,
  59                                                         1, 0);
  60                 if (!valid_event)
  61                         break;
  62                 rx_pkts[count++] = ev.mbuf;
  63         }
  64
  65         return count; /* return number of pkts received */
  66 }