drivers/net/ixgbe/ixgbe_vf_representor.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018 Intel Corporation.
   3  */
   4
   5 #include <rte_ethdev.h>
   6 #include <rte_pci.h>
   7 #include <rte_malloc.h>
   8
   9 #include "base/ixgbe_type.h"
  10 #include "base/ixgbe_vf.h"
  11 #include "ixgbe_ethdev.h"
  12 #include "ixgbe_rxtx.h"
  13 #include "rte_pmd_ixgbe.h"
  14
  15
  16 static int
  17 ixgbe_vf_representor_link_update(struct rte_eth_dev *ethdev,
  18         int wait_to_complete)
  19 {
  20         struct ixgbe_vf_representor *representor = ethdev->data->dev_private;
  21
  22         return ixgbe_dev_link_update_share(representor->pf_ethdev,
  23                 wait_to_complete, 0);
  24 }
  25
  26 static int
  27 ixgbe_vf_representor_mac_addr_set(struct rte_eth_dev *ethdev,
  28         struct rte_ether_addr *mac_addr)
  29 {
  30         struct ixgbe_vf_representor *representor = ethdev->data->dev_private;
  31
  32         return rte_pmd_ixgbe_set_vf_mac_addr(
  33                 representor->pf_ethdev->data->port_id,
  34                 representor->vf_id, mac_addr);
  35 }
  36
  37 static int
  38 ixgbe_vf_representor_dev_infos_get(struct rte_eth_dev *ethdev,
  39         struct rte_eth_dev_info *dev_info)
  40 {
  41         struct ixgbe_vf_representor *representor = ethdev->data->dev_private;
  42
  43         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(
  44                 representor->pf_ethdev->data->dev_private);
  45
  46         dev_info->device = representor->pf_ethdev->device;
  47
  48         dev_info->min_rx_bufsize = 1024;
  49         /**< Minimum size of RX buffer. */
  50         dev_info->max_rx_pktlen = 9728;
  51         /**< Maximum configurable length of RX pkt. */
  52         dev_info->max_rx_queues = IXGBE_VF_MAX_RX_QUEUES;
  53         /**< Maximum number of RX queues. */
  54         dev_info->max_tx_queues = IXGBE_VF_MAX_TX_QUEUES;
  55         /**< Maximum number of TX queues. */
  56
  57         dev_info->max_mac_addrs = hw->mac.num_rar_entries;
  58         /**< Maximum number of MAC addresses. */
  59
  60         dev_info->rx_offload_capa = DEV_RX_OFFLOAD_VLAN_STRIP |
  61                 DEV_RX_OFFLOAD_IPV4_CKSUM |     DEV_RX_OFFLOAD_UDP_CKSUM  |
  62                 DEV_RX_OFFLOAD_TCP_CKSUM;
  63         /**< Device RX offload capabilities. */
  64
  65         dev_info->tx_offload_capa = DEV_TX_OFFLOAD_VLAN_INSERT |
  66                 DEV_TX_OFFLOAD_IPV4_CKSUM | DEV_TX_OFFLOAD_UDP_CKSUM |
  67                 DEV_TX_OFFLOAD_TCP_CKSUM | DEV_TX_OFFLOAD_SCTP_CKSUM |
  68                 DEV_TX_OFFLOAD_TCP_TSO | DEV_TX_OFFLOAD_MULTI_SEGS;
  69         /**< Device TX offload capabilities. */
  70
  71         dev_info->speed_capa =
  72                 representor->pf_ethdev->data->dev_link.link_speed;
  73         /**< Supported speeds bitmap (ETH_LINK_SPEED_). */
  74
  75         dev_info->switch_info.name =
  76                 representor->pf_ethdev->device->name;
  77         dev_info->switch_info.domain_id = representor->switch_domain_id;
  78         dev_info->switch_info.port_id = representor->vf_id;
  79
  80         return 0;
  81 }
  82
  83 static int ixgbe_vf_representor_dev_configure(
  84                 __rte_unused struct rte_eth_dev *dev)
  85 {
  86         return 0;
  87 }
  88
  89 static int ixgbe_vf_representor_rx_queue_setup(
  90         __rte_unused struct rte_eth_dev *dev,
  91         __rte_unused uint16_t rx_queue_id,
  92         __rte_unused uint16_t nb_rx_desc,
  93         __rte_unused unsigned int socket_id,
  94         __rte_unused const struct rte_eth_rxconf *rx_conf,
  95         __rte_unused struct rte_mempool *mb_pool)
  96 {
  97         return 0;
  98 }
  99
 100 static int ixgbe_vf_representor_tx_queue_setup(
 101         __rte_unused struct rte_eth_dev *dev,
 102         __rte_unused uint16_t rx_queue_id,
 103         __rte_unused uint16_t nb_rx_desc,
 104         __rte_unused unsigned int socket_id,
 105         __rte_unused const struct rte_eth_txconf *tx_conf)
 106 {
 107         return 0;
 108 }
 109
 110 static int ixgbe_vf_representor_dev_start(__rte_unused struct rte_eth_dev *dev)
 111 {
 112         return 0;
 113 }
 114
 115 static void ixgbe_vf_representor_dev_stop(__rte_unused struct rte_eth_dev *dev)
 116 {
 117 }
 118
 119 static int
 120 ixgbe_vf_representor_vlan_filter_set(struct rte_eth_dev *ethdev,
 121         uint16_t vlan_id, int on)
 122 {
 123         struct ixgbe_vf_representor *representor = ethdev->data->dev_private;
 124         uint64_t vf_mask = 1ULL << representor->vf_id;
 125
 126         return rte_pmd_ixgbe_set_vf_vlan_filter(
 127                 representor->pf_ethdev->data->port_id, vlan_id, vf_mask, on);
 128 }
 129
 130 static void
 131 ixgbe_vf_representor_vlan_strip_queue_set(struct rte_eth_dev *ethdev,
 132         __rte_unused uint16_t rx_queue_id, int on)
 133 {
 134         struct ixgbe_vf_representor *representor = ethdev->data->dev_private;
 135
 136         rte_pmd_ixgbe_set_vf_vlan_stripq(representor->pf_ethdev->data->port_id,
 137                 representor->vf_id, on);
 138 }
 139
 140 static const struct eth_dev_ops ixgbe_vf_representor_dev_ops = {
 141         .dev_infos_get          = ixgbe_vf_representor_dev_infos_get,
 142
 143         .dev_start              = ixgbe_vf_representor_dev_start,
 144         .dev_configure          = ixgbe_vf_representor_dev_configure,
 145         .dev_stop               = ixgbe_vf_representor_dev_stop,
 146
 147         .rx_queue_setup         = ixgbe_vf_representor_rx_queue_setup,
 148         .tx_queue_setup         = ixgbe_vf_representor_tx_queue_setup,
 149
 150         .link_update            = ixgbe_vf_representor_link_update,
 151
 152         .vlan_filter_set        = ixgbe_vf_representor_vlan_filter_set,
 153         .vlan_strip_queue_set   = ixgbe_vf_representor_vlan_strip_queue_set,
 154
 155         .mac_addr_set           = ixgbe_vf_representor_mac_addr_set,
 156 };
 157
 158 static uint16_t
 159 ixgbe_vf_representor_rx_burst(__rte_unused void *rx_queue,
 160         __rte_unused struct rte_mbuf **rx_pkts, __rte_unused uint16_t nb_pkts)
 161 {
 162         return 0;
 163 }
 164
 165 static uint16_t
 166 ixgbe_vf_representor_tx_burst(__rte_unused void *tx_queue,
 167         __rte_unused struct rte_mbuf **tx_pkts, __rte_unused uint16_t nb_pkts)
 168 {
 169         return 0;
 170 }
 171
 172 int
 173 ixgbe_vf_representor_init(struct rte_eth_dev *ethdev, void *init_params)
 174 {
 175         struct ixgbe_vf_representor *representor = ethdev->data->dev_private;
 176
 177         struct ixgbe_vf_info *vf_data;
 178         struct rte_pci_device *pci_dev;
 179         struct rte_eth_link *link;
 180
 181         if (!representor)
 182                 return -ENOMEM;
 183
 184         representor->vf_id =
 185                 ((struct ixgbe_vf_representor *)init_params)->vf_id;
 186         representor->switch_domain_id =
 187                 ((struct ixgbe_vf_representor *)init_params)->switch_domain_id;
 188         representor->pf_ethdev =
 189                 ((struct ixgbe_vf_representor *)init_params)->pf_ethdev;
 190
 191         pci_dev = RTE_ETH_DEV_TO_PCI(representor->pf_ethdev);
 192
 193         if (representor->vf_id >= pci_dev->max_vfs)
 194                 return -ENODEV;
 195
 196         ethdev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR;
 197         ethdev->data->representor_id = representor->vf_id;
 198
 199         /* Set representor device ops */
 200         ethdev->dev_ops = &ixgbe_vf_representor_dev_ops;
 201
 202         /* No data-path, but need stub Rx/Tx functions to avoid crash
 203          * when testing with the likes of testpmd.
 204          */
 205         ethdev->rx_pkt_burst = ixgbe_vf_representor_rx_burst;
 206         ethdev->tx_pkt_burst = ixgbe_vf_representor_tx_burst;
 207
 208         /* Setting the number queues allocated to the VF */
 209         ethdev->data->nb_rx_queues = IXGBE_VF_MAX_RX_QUEUES;
 210         ethdev->data->nb_tx_queues = IXGBE_VF_MAX_RX_QUEUES;
 211
 212         /* Reference VF mac address from PF data structure */
 213         vf_data = *IXGBE_DEV_PRIVATE_TO_P_VFDATA(
 214                 representor->pf_ethdev->data->dev_private);
 215
 216         ethdev->data->mac_addrs = (struct rte_ether_addr *)
 217                 vf_data[representor->vf_id].vf_mac_addresses;
 218
 219         /* Link state. Inherited from PF */
 220         link = &representor->pf_ethdev->data->dev_link;
 221
 222         ethdev->data->dev_link.link_speed = link->link_speed;
 223         ethdev->data->dev_link.link_duplex = link->link_duplex;
 224         ethdev->data->dev_link.link_status = link->link_status;
 225         ethdev->data->dev_link.link_autoneg = link->link_autoneg;
 226
 227         return 0;
 228 }
 229
 230 int
 231 ixgbe_vf_representor_uninit(struct rte_eth_dev *ethdev)
 232 {
 233         /* mac_addrs must not be freed because part of ixgbe_vf_info */
 234         ethdev->data->mac_addrs = NULL;
 235
 236         return 0;
 237 }