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 __rte_hot
  23 octeontx_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
  24 {
  25         struct octeontx_rxq *rxq;
  26         struct rte_event ev;
  27         size_t count;
  28         uint16_t valid_event;
  29
  30         rxq = rx_queue;
  31         count = 0;
  32         while (count < nb_pkts) {
  33                 valid_event = rte_event_dequeue_burst(rxq->evdev,
  34                                                         rxq->ev_ports, &ev,
  35                                                         1, 0);
  36                 if (!valid_event)
  37                         break;
  38                 rx_pkts[count++] = ev.mbuf;
  39         }
  40
  41         return count; /* return number of pkts received */
  42 }
  43
  44 #define T(name, f1, sz, flags)                                  \
  45 static uint16_t __rte_noinline  __rte_hot                               \
  46 octeontx_xmit_pkts_ ##name(void *tx_queue,                              \
  47                         struct rte_mbuf **tx_pkts, uint16_t pkts)       \
  48 {                                                                       \
  49         uint64_t cmd[(sz)];                                             \
  50                                                                         \
  51         return __octeontx_xmit_pkts(tx_queue, tx_pkts, pkts, cmd,       \
  52                                     flags);                             \
  53 }
  54
  55 OCCTX_TX_FASTPATH_MODES
  56 #undef T
  57
  58 void __rte_hot
  59 octeontx_set_tx_function(struct rte_eth_dev *dev)
  60 {
  61         struct octeontx_nic *nic = octeontx_pmd_priv(dev);
  62
  63         const eth_tx_burst_t tx_burst_func[2] = {
  64 #define T(name, f0, sz, flags)                  \
  65         [f0] =  octeontx_xmit_pkts_ ##name,
  66
  67 OCCTX_TX_FASTPATH_MODES
  68 #undef T
  69         };
  70
  71         dev->tx_pkt_burst = tx_burst_func
  72                 [!!(nic->tx_offload_flags & OCCTX_TX_MULTI_SEG_F)];
  73 }