drivers/net/thunderx/nicvf_rxtx.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2016 Cavium, Inc
   3  */
   4
   5 #ifndef __THUNDERX_NICVF_RXTX_H__
   6 #define __THUNDERX_NICVF_RXTX_H__
   7
   8 #include <rte_byteorder.h>
   9 #include <rte_ethdev_driver.h>
  10
  11 #define NICVF_RX_OFFLOAD_NONE           0x1
  12 #define NICVF_RX_OFFLOAD_CKSUM          0x2
  13 #define NICVF_RX_OFFLOAD_VLAN_STRIP     0x4
  14
  15 #define NICVF_TX_OFFLOAD_MASK (PKT_TX_IP_CKSUM | PKT_TX_L4_MASK)
  16
  17 #if RTE_BYTE_ORDER == RTE_BIG_ENDIAN
  18 static inline uint16_t __attribute__((const))
  19 nicvf_frag_num(uint16_t i)
  20 {
  21         return (i & ~3) + 3 - (i & 3);
  22 }
  23
  24 static inline void __rte_hot
  25 fill_sq_desc_gather(union sq_entry_t *entry, struct rte_mbuf *pkt)
  26 {
  27         /* Local variable sqe to avoid read from sq desc memory*/
  28         union sq_entry_t sqe;
  29
  30         /* Fill the SQ gather entry */
  31         sqe.buff[0] = 0; sqe.buff[1] = 0;
  32         sqe.gather.subdesc_type = SQ_DESC_TYPE_GATHER;
  33         sqe.gather.ld_type = NIC_SEND_LD_TYPE_E_LDT;
  34         sqe.gather.size = pkt->data_len;
  35         sqe.gather.addr = rte_mbuf_data_iova(pkt);
  36
  37         entry->buff[0] = sqe.buff[0];
  38         entry->buff[1] = sqe.buff[1];
  39 }
  40
  41 #else
  42
  43 static inline uint16_t __attribute__((const))
  44 nicvf_frag_num(uint16_t i)
  45 {
  46         return i;
  47 }
  48
  49 static inline void __rte_hot
  50 fill_sq_desc_gather(union sq_entry_t *entry, struct rte_mbuf *pkt)
  51 {
  52         entry->buff[0] = (uint64_t)SQ_DESC_TYPE_GATHER << 60 |
  53                          (uint64_t)NIC_SEND_LD_TYPE_E_LDT << 58 |
  54                          pkt->data_len;
  55         entry->buff[1] = rte_mbuf_data_iova(pkt);
  56 }
  57 #endif
  58
  59 static inline void
  60 nicvf_mbuff_init_update(struct rte_mbuf *pkt, const uint64_t mbuf_init,
  61                                 uint16_t apad)
  62 {
  63         union mbuf_initializer init = {.value = mbuf_init};
  64 #if RTE_BYTE_ORDER == RTE_BIG_ENDIAN
  65         init.fields.data_off += apad;
  66 #else
  67         init.value += apad;
  68 #endif
  69         *(uint64_t *)(&pkt->rearm_data) = init.value;
  70 }
  71
  72 static inline void
  73 nicvf_mbuff_init_mseg_update(struct rte_mbuf *pkt, const uint64_t mbuf_init,
  74                                                 uint16_t apad, uint16_t nb_segs)
  75 {
  76         union mbuf_initializer init = {.value = mbuf_init};
  77 #if RTE_BYTE_ORDER == RTE_BIG_ENDIAN
  78         init.fields.data_off += apad;
  79 #else
  80         init.value += apad;
  81 #endif
  82         init.fields.nb_segs = nb_segs;
  83         *(uint64_t *)(&pkt->rearm_data) = init.value;
  84 }
  85
  86 uint32_t nicvf_dev_rx_queue_count(struct rte_eth_dev *dev, uint16_t queue_idx);
  87 uint32_t nicvf_dev_rbdr_refill(struct rte_eth_dev *dev, uint16_t queue_idx);
  88
  89 uint16_t nicvf_recv_pkts_no_offload(void *rxq, struct rte_mbuf **rx_pkts,
  90                 uint16_t pkts);
  91 uint16_t nicvf_recv_pkts_cksum(void *rxq, struct rte_mbuf **rx_pkts,
  92                 uint16_t pkts);
  93 uint16_t nicvf_recv_pkts_vlan_strip(void *rx_queue, struct rte_mbuf **rx_pkts,
  94                 uint16_t nb_pkts);
  95 uint16_t nicvf_recv_pkts_cksum_vlan_strip(void *rx_queue,
  96                 struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
  97
  98 uint16_t nicvf_recv_pkts_multiseg_no_offload(void *rx_queue,
  99                 struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
 100 uint16_t nicvf_recv_pkts_multiseg_cksum(void *rx_queue,
 101                 struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
 102 uint16_t nicvf_recv_pkts_multiseg_vlan_strip(void *rx_queue,
 103                 struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
 104 uint16_t nicvf_recv_pkts_multiseg_cksum_vlan_strip(void *rx_queue,
 105                 struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
 106
 107 uint16_t nicvf_xmit_pkts(void *txq, struct rte_mbuf **tx_pkts, uint16_t pkts);
 108 uint16_t nicvf_xmit_pkts_multiseg(void *txq, struct rte_mbuf **tx_pkts,
 109                                   uint16_t pkts);
 110
 111 void nicvf_single_pool_free_xmited_buffers(struct nicvf_txq *sq);
 112 void nicvf_multi_pool_free_xmited_buffers(struct nicvf_txq *sq);
 113
 114 #endif /* __THUNDERX_NICVF_RXTX_H__  */