ceph/src/seastar/dpdk/drivers/net/thunderx/nicvf_ethdev.h

   1 /*
   2  *   BSD LICENSE
   3  *
   4  *   Copyright (C) Cavium networks Ltd. 2016.
   5  *
   6  *   Redistribution and use in source and binary forms, with or without
   7  *   modification, are permitted provided that the following conditions
   8  *   are met:
   9  *
  10  *     * Redistributions of source code must retain the above copyright
  11  *       notice, this list of conditions and the following disclaimer.
  12  *     * Redistributions in binary form must reproduce the above copyright
  13  *       notice, this list of conditions and the following disclaimer in
  14  *       the documentation and/or other materials provided with the
  15  *       distribution.
  16  *     * Neither the name of Cavium networks nor the names of its
  17  *       contributors may be used to endorse or promote products derived
  18  *       from this software without specific prior written permission.
  19  *
  20  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #ifndef __THUNDERX_NICVF_ETHDEV_H__
  34 #define __THUNDERX_NICVF_ETHDEV_H__
  35
  36 #include <rte_ethdev.h>
  37
  38 #define THUNDERX_NICVF_PMD_VERSION      "2.0"
  39 #define THUNDERX_REG_BYTES              8
  40
  41 #define NICVF_INTR_POLL_INTERVAL_MS     50
  42 #define NICVF_HALF_DUPLEX               0x00
  43 #define NICVF_FULL_DUPLEX               0x01
  44 #define NICVF_UNKNOWN_DUPLEX            0xff
  45
  46 #define NICVF_RSS_OFFLOAD_PASS1 ( \
  47         ETH_RSS_PORT | \
  48         ETH_RSS_IPV4 | \
  49         ETH_RSS_NONFRAG_IPV4_TCP | \
  50         ETH_RSS_NONFRAG_IPV4_UDP | \
  51         ETH_RSS_IPV6 | \
  52         ETH_RSS_NONFRAG_IPV6_TCP | \
  53         ETH_RSS_NONFRAG_IPV6_UDP)
  54
  55 #define NICVF_RSS_OFFLOAD_TUNNEL ( \
  56         ETH_RSS_VXLAN | \
  57         ETH_RSS_GENEVE | \
  58         ETH_RSS_NVGRE)
  59
  60 #define NICVF_DEFAULT_RX_FREE_THRESH    224
  61 #define NICVF_DEFAULT_TX_FREE_THRESH    224
  62 #define NICVF_TX_FREE_MPOOL_THRESH      16
  63 #define NICVF_MAX_RX_FREE_THRESH        1024
  64 #define NICVF_MAX_TX_FREE_THRESH        1024
  65
  66 #define VLAN_TAG_SIZE                   4       /* 802.3ac tag */
  67
  68 static inline struct nicvf *
  69 nicvf_pmd_priv(struct rte_eth_dev *eth_dev)
  70 {
  71         return eth_dev->data->dev_private;
  72 }
  73
  74 static inline uint64_t
  75 nicvf_mempool_phy_offset(struct rte_mempool *mp)
  76 {
  77         struct rte_mempool_memhdr *hdr;
  78
  79         hdr = STAILQ_FIRST(&mp->mem_list);
  80         assert(hdr != NULL);
  81         return (uint64_t)((uintptr_t)hdr->addr - hdr->phys_addr);
  82 }
  83
  84 static inline uint16_t
  85 nicvf_mbuff_meta_length(struct rte_mbuf *mbuf)
  86 {
  87         return (uint16_t)((uintptr_t)mbuf->buf_addr - (uintptr_t)mbuf);
  88 }
  89
  90 static inline uint16_t
  91 nicvf_netdev_qidx(struct nicvf *nic, uint8_t local_qidx)
  92 {
  93         uint16_t global_qidx = local_qidx;
  94
  95         if (nic->sqs_mode)
  96                 global_qidx += ((nic->sqs_id + 1) * MAX_CMP_QUEUES_PER_QS);
  97
  98         return global_qidx;
  99 }
 100
 101 /*
 102  * Simple phy2virt functions assuming mbufs are in a single huge page
 103  * V = P + offset
 104  * P = V - offset
 105  */
 106 static inline uintptr_t
 107 nicvf_mbuff_phy2virt(phys_addr_t phy, uint64_t mbuf_phys_off)
 108 {
 109         return (uintptr_t)(phy + mbuf_phys_off);
 110 }
 111
 112 static inline uintptr_t
 113 nicvf_mbuff_virt2phy(uintptr_t virt, uint64_t mbuf_phys_off)
 114 {
 115         return (phys_addr_t)(virt - mbuf_phys_off);
 116 }
 117
 118 static inline void
 119 nicvf_tx_range(struct rte_eth_dev *dev, struct nicvf *nic, uint16_t *tx_start,
 120                uint16_t *tx_end)
 121 {
 122         uint16_t tmp;
 123
 124         *tx_start = RTE_ALIGN_FLOOR(nicvf_netdev_qidx(nic, 0),
 125                                     MAX_SND_QUEUES_PER_QS);
 126         tmp = RTE_ALIGN_CEIL(nicvf_netdev_qidx(nic, 0) + 1,
 127                              MAX_SND_QUEUES_PER_QS) - 1;
 128         *tx_end = dev->data->nb_tx_queues ?
 129                 RTE_MIN(tmp, dev->data->nb_tx_queues - 1) : 0;
 130 }
 131
 132 static inline void
 133 nicvf_rx_range(struct rte_eth_dev *dev, struct nicvf *nic, uint16_t *rx_start,
 134                uint16_t *rx_end)
 135 {
 136         uint16_t tmp;
 137
 138         *rx_start = RTE_ALIGN_FLOOR(nicvf_netdev_qidx(nic, 0),
 139                                     MAX_RCV_QUEUES_PER_QS);
 140         tmp = RTE_ALIGN_CEIL(nicvf_netdev_qidx(nic, 0) + 1,
 141                              MAX_RCV_QUEUES_PER_QS) - 1;
 142         *rx_end = dev->data->nb_rx_queues ?
 143                 RTE_MIN(tmp, dev->data->nb_rx_queues - 1) : 0;
 144 }
 145
 146 #endif /* __THUNDERX_NICVF_ETHDEV_H__  */