drivers/net/thunderx/nicvf_ethdev.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2016 Cavium, Inc
   3  */
   4
   5 #ifndef __THUNDERX_NICVF_ETHDEV_H__
   6 #define __THUNDERX_NICVF_ETHDEV_H__
   7
   8 #include <ethdev_driver.h>
   9
  10 #define THUNDERX_NICVF_PMD_VERSION      "2.0"
  11 #define THUNDERX_REG_BYTES              8
  12
  13 #define NICVF_INTR_POLL_INTERVAL_MS     50
  14 #define NICVF_HALF_DUPLEX               0x00
  15 #define NICVF_FULL_DUPLEX               0x01
  16 #define NICVF_UNKNOWN_DUPLEX            0xff
  17
  18 #define NICVF_RSS_OFFLOAD_PASS1 ( \
  19         ETH_RSS_PORT | \
  20         ETH_RSS_IPV4 | \
  21         ETH_RSS_NONFRAG_IPV4_TCP | \
  22         ETH_RSS_NONFRAG_IPV4_UDP | \
  23         ETH_RSS_IPV6 | \
  24         ETH_RSS_NONFRAG_IPV6_TCP | \
  25         ETH_RSS_NONFRAG_IPV6_UDP)
  26
  27 #define NICVF_RSS_OFFLOAD_TUNNEL ( \
  28         ETH_RSS_VXLAN | \
  29         ETH_RSS_GENEVE | \
  30         ETH_RSS_NVGRE)
  31
  32 #define NICVF_TX_OFFLOAD_CAPA ( \
  33         DEV_TX_OFFLOAD_IPV4_CKSUM       | \
  34         DEV_TX_OFFLOAD_UDP_CKSUM        | \
  35         DEV_TX_OFFLOAD_TCP_CKSUM        | \
  36         DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM | \
  37         DEV_TX_OFFLOAD_MBUF_FAST_FREE   | \
  38         DEV_TX_OFFLOAD_MULTI_SEGS)
  39
  40 #define NICVF_RX_OFFLOAD_CAPA ( \
  41         DEV_RX_OFFLOAD_CHECKSUM    | \
  42         DEV_RX_OFFLOAD_VLAN_STRIP  | \
  43         DEV_RX_OFFLOAD_JUMBO_FRAME | \
  44         DEV_RX_OFFLOAD_SCATTER     | \
  45         DEV_RX_OFFLOAD_RSS_HASH)
  46
  47 #define NICVF_DEFAULT_RX_FREE_THRESH    224
  48 #define NICVF_DEFAULT_TX_FREE_THRESH    224
  49 #define NICVF_TX_FREE_MPOOL_THRESH      16
  50 #define NICVF_MAX_RX_FREE_THRESH        1024
  51 #define NICVF_MAX_TX_FREE_THRESH        1024
  52
  53 #define VLAN_TAG_SIZE                   4       /* 802.3ac tag */
  54
  55 #define SKIP_DATA_BYTES "skip_data_bytes"
  56 static inline struct nicvf *
  57 nicvf_pmd_priv(struct rte_eth_dev *eth_dev)
  58 {
  59         return eth_dev->data->dev_private;
  60 }
  61
  62 static inline uint64_t
  63 nicvf_mempool_phy_offset(struct rte_mempool *mp)
  64 {
  65         struct rte_mempool_memhdr *hdr;
  66
  67         hdr = STAILQ_FIRST(&mp->mem_list);
  68         assert(hdr != NULL);
  69         return (uint64_t)((uintptr_t)hdr->addr - hdr->iova);
  70 }
  71
  72 static inline uint16_t
  73 nicvf_mbuff_meta_length(struct rte_mbuf *mbuf)
  74 {
  75         return (uint16_t)((uintptr_t)mbuf->buf_addr - (uintptr_t)mbuf);
  76 }
  77
  78 static inline uint16_t
  79 nicvf_netdev_qidx(struct nicvf *nic, uint8_t local_qidx)
  80 {
  81         uint16_t global_qidx = local_qidx;
  82
  83         if (nic->sqs_mode)
  84                 global_qidx += ((nic->sqs_id + 1) * MAX_CMP_QUEUES_PER_QS);
  85
  86         return global_qidx;
  87 }
  88
  89 /*
  90  * Simple phy2virt functions assuming mbufs are in a single huge page
  91  * V = P + offset
  92  * P = V - offset
  93  */
  94 static inline uintptr_t
  95 nicvf_mbuff_phy2virt(rte_iova_t phy, uint64_t mbuf_phys_off)
  96 {
  97         return (uintptr_t)(phy + mbuf_phys_off);
  98 }
  99
 100 static inline uintptr_t
 101 nicvf_mbuff_virt2phy(uintptr_t virt, uint64_t mbuf_phys_off)
 102 {
 103         return (rte_iova_t)(virt - mbuf_phys_off);
 104 }
 105
 106 static inline void
 107 nicvf_tx_range(struct rte_eth_dev *dev, struct nicvf *nic, uint16_t *tx_start,
 108                uint16_t *tx_end)
 109 {
 110         uint16_t tmp;
 111
 112         *tx_start = RTE_ALIGN_FLOOR(nicvf_netdev_qidx(nic, 0),
 113                                     MAX_SND_QUEUES_PER_QS);
 114         tmp = RTE_ALIGN_CEIL(nicvf_netdev_qidx(nic, 0) + 1,
 115                              MAX_SND_QUEUES_PER_QS) - 1;
 116         *tx_end = dev->data->nb_tx_queues ?
 117                 RTE_MIN(tmp, dev->data->nb_tx_queues - 1) : 0;
 118 }
 119
 120 static inline void
 121 nicvf_rx_range(struct rte_eth_dev *dev, struct nicvf *nic, uint16_t *rx_start,
 122                uint16_t *rx_end)
 123 {
 124         uint16_t tmp;
 125
 126         *rx_start = RTE_ALIGN_FLOOR(nicvf_netdev_qidx(nic, 0),
 127                                     MAX_RCV_QUEUES_PER_QS);
 128         tmp = RTE_ALIGN_CEIL(nicvf_netdev_qidx(nic, 0) + 1,
 129                              MAX_RCV_QUEUES_PER_QS) - 1;
 130         *rx_end = dev->data->nb_rx_queues ?
 131                 RTE_MIN(tmp, dev->data->nb_rx_queues - 1) : 0;
 132 }
 133
 134 #endif /* __THUNDERX_NICVF_ETHDEV_H__  */