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 "ethdev_driver.h"
  10 #include "base/ixgbe_type.h"
  11 #include "base/ixgbe_vf.h"
  12 #include "ixgbe_ethdev.h"
  13 #include "ixgbe_rxtx.h"
  14 #include "rte_pmd_ixgbe.h"
  15
  16
  17 static int
  18 ixgbe_vf_representor_link_update(struct rte_eth_dev *ethdev,
  19         int wait_to_complete)
  20 {
  21         struct ixgbe_vf_representor *representor = ethdev->data->dev_private;
  22
  23         return ixgbe_dev_link_update_share(representor->pf_ethdev,
  24                 wait_to_complete, 0);
  25 }
  26
  27 static int
  28 ixgbe_vf_representor_mac_addr_set(struct rte_eth_dev *ethdev,
  29         struct rte_ether_addr *mac_addr)
  30 {
  31         struct ixgbe_vf_representor *representor = ethdev->data->dev_private;
  32
  33         return rte_pmd_ixgbe_set_vf_mac_addr(
  34                 representor->pf_ethdev->data->port_id,
  35                 representor->vf_id, mac_addr);
  36 }
  37
  38 static int
  39 ixgbe_vf_representor_dev_infos_get(struct rte_eth_dev *ethdev,
  40         struct rte_eth_dev_info *dev_info)
  41 {
  42         struct ixgbe_vf_representor *representor = ethdev->data->dev_private;
  43
  44         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(
  45                 representor->pf_ethdev->data->dev_private);
  46
  47         dev_info->device = representor->pf_ethdev->device;
  48
  49         dev_info->min_rx_bufsize = 1024;
  50         /**< Minimum size of RX buffer. */
  51         dev_info->max_rx_pktlen = 9728;
  52         /**< Maximum configurable length of RX pkt. */
  53         dev_info->max_rx_queues = IXGBE_VF_MAX_RX_QUEUES;
  54         /**< Maximum number of RX queues. */
  55         dev_info->max_tx_queues = IXGBE_VF_MAX_TX_QUEUES;
  56         /**< Maximum number of TX queues. */
  57
  58         dev_info->max_mac_addrs = hw->mac.num_rar_entries;
  59         /**< Maximum number of MAC addresses. */
  60
  61         dev_info->rx_offload_capa = DEV_RX_OFFLOAD_VLAN_STRIP |
  62                 DEV_RX_OFFLOAD_IPV4_CKSUM |     DEV_RX_OFFLOAD_UDP_CKSUM  |
  63                 DEV_RX_OFFLOAD_TCP_CKSUM;
  64         /**< Device RX offload capabilities. */
  65
  66         dev_info->tx_offload_capa = DEV_TX_OFFLOAD_VLAN_INSERT |
  67                 DEV_TX_OFFLOAD_IPV4_CKSUM | DEV_TX_OFFLOAD_UDP_CKSUM |
  68                 DEV_TX_OFFLOAD_TCP_CKSUM | DEV_TX_OFFLOAD_SCTP_CKSUM |
  69                 DEV_TX_OFFLOAD_TCP_TSO | DEV_TX_OFFLOAD_MULTI_SEGS;
  70         /**< Device TX offload capabilities. */
  71
  72         dev_info->speed_capa =
  73                 representor->pf_ethdev->data->dev_link.link_speed;
  74         /**< Supported speeds bitmap (ETH_LINK_SPEED_). */
  75
  76         dev_info->switch_info.name =
  77                 representor->pf_ethdev->device->name;
  78         dev_info->switch_info.domain_id = representor->switch_domain_id;
  79         dev_info->switch_info.port_id = representor->vf_id;
  80
  81         return 0;
  82 }
  83
  84 static int ixgbe_vf_representor_dev_configure(
  85                 __rte_unused struct rte_eth_dev *dev)
  86 {
  87         return 0;
  88 }
  89
  90 static int ixgbe_vf_representor_rx_queue_setup(
  91         __rte_unused struct rte_eth_dev *dev,
  92         __rte_unused uint16_t rx_queue_id,
  93         __rte_unused uint16_t nb_rx_desc,
  94         __rte_unused unsigned int socket_id,
  95         __rte_unused const struct rte_eth_rxconf *rx_conf,
  96         __rte_unused struct rte_mempool *mb_pool)
  97 {
  98         return 0;
  99 }
 100
 101 static int ixgbe_vf_representor_tx_queue_setup(
 102         __rte_unused struct rte_eth_dev *dev,
 103         __rte_unused uint16_t rx_queue_id,
 104         __rte_unused uint16_t nb_rx_desc,
 105         __rte_unused unsigned int socket_id,
 106         __rte_unused const struct rte_eth_txconf *tx_conf)
 107 {
 108         return 0;
 109 }
 110
 111 static int ixgbe_vf_representor_dev_start(__rte_unused struct rte_eth_dev *dev)
 112 {
 113         return 0;
 114 }
 115
 116 static int ixgbe_vf_representor_dev_stop(__rte_unused struct rte_eth_dev *dev)
 117 {
 118         return 0;
 119 }
 120
 121 static int
 122 ixgbe_vf_representor_vlan_filter_set(struct rte_eth_dev *ethdev,
 123         uint16_t vlan_id, int on)
 124 {
 125         struct ixgbe_vf_representor *representor = ethdev->data->dev_private;
 126         uint64_t vf_mask = 1ULL << representor->vf_id;
 127
 128         return rte_pmd_ixgbe_set_vf_vlan_filter(
 129                 representor->pf_ethdev->data->port_id, vlan_id, vf_mask, on);
 130 }
 131
 132 static void
 133 ixgbe_vf_representor_vlan_strip_queue_set(struct rte_eth_dev *ethdev,
 134         __rte_unused uint16_t rx_queue_id, int on)
 135 {
 136         struct ixgbe_vf_representor *representor = ethdev->data->dev_private;
 137
 138         rte_pmd_ixgbe_set_vf_vlan_stripq(representor->pf_ethdev->data->port_id,
 139                 representor->vf_id, on);
 140 }
 141
 142 static const struct eth_dev_ops ixgbe_vf_representor_dev_ops = {
 143         .dev_infos_get          = ixgbe_vf_representor_dev_infos_get,
 144
 145         .dev_start              = ixgbe_vf_representor_dev_start,
 146         .dev_configure          = ixgbe_vf_representor_dev_configure,
 147         .dev_stop               = ixgbe_vf_representor_dev_stop,
 148
 149         .rx_queue_setup         = ixgbe_vf_representor_rx_queue_setup,
 150         .tx_queue_setup         = ixgbe_vf_representor_tx_queue_setup,
 151
 152         .link_update            = ixgbe_vf_representor_link_update,
 153
 154         .vlan_filter_set        = ixgbe_vf_representor_vlan_filter_set,
 155         .vlan_strip_queue_set   = ixgbe_vf_representor_vlan_strip_queue_set,
 156
 157         .mac_addr_set           = ixgbe_vf_representor_mac_addr_set,
 158 };
 159
 160 static uint16_t
 161 ixgbe_vf_representor_rx_burst(__rte_unused void *rx_queue,
 162         __rte_unused struct rte_mbuf **rx_pkts, __rte_unused uint16_t nb_pkts)
 163 {
 164         return 0;
 165 }
 166
 167 static uint16_t
 168 ixgbe_vf_representor_tx_burst(__rte_unused void *tx_queue,
 169         __rte_unused struct rte_mbuf **tx_pkts, __rte_unused uint16_t nb_pkts)
 170 {
 171         return 0;
 172 }
 173
 174 int
 175 ixgbe_vf_representor_init(struct rte_eth_dev *ethdev, void *init_params)
 176 {
 177         struct ixgbe_vf_representor *representor = ethdev->data->dev_private;
 178
 179         struct ixgbe_vf_info *vf_data;
 180         struct rte_pci_device *pci_dev;
 181         struct rte_eth_link *link;
 182
 183         if (!representor)
 184                 return -ENOMEM;
 185
 186         representor->vf_id =
 187                 ((struct ixgbe_vf_representor *)init_params)->vf_id;
 188         representor->switch_domain_id =
 189                 ((struct ixgbe_vf_representor *)init_params)->switch_domain_id;
 190         representor->pf_ethdev =
 191                 ((struct ixgbe_vf_representor *)init_params)->pf_ethdev;
 192
 193         pci_dev = RTE_ETH_DEV_TO_PCI(representor->pf_ethdev);
 194
 195         if (representor->vf_id >= pci_dev->max_vfs)
 196                 return -ENODEV;
 197
 198         ethdev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR;
 199         ethdev->data->representor_id = representor->vf_id;
 200         ethdev->data->backer_port_id = representor->pf_ethdev->data->port_id;
 201
 202         /* Set representor device ops */
 203         ethdev->dev_ops = &ixgbe_vf_representor_dev_ops;
 204
 205         /* No data-path, but need stub Rx/Tx functions to avoid crash
 206          * when testing with the likes of testpmd.
 207          */
 208         ethdev->rx_pkt_burst = ixgbe_vf_representor_rx_burst;
 209         ethdev->tx_pkt_burst = ixgbe_vf_representor_tx_burst;
 210
 211         /* Setting the number queues allocated to the VF */
 212         ethdev->data->nb_rx_queues = IXGBE_VF_MAX_RX_QUEUES;
 213         ethdev->data->nb_tx_queues = IXGBE_VF_MAX_RX_QUEUES;
 214
 215         /* Reference VF mac address from PF data structure */
 216         vf_data = *IXGBE_DEV_PRIVATE_TO_P_VFDATA(
 217                 representor->pf_ethdev->data->dev_private);
 218
 219         ethdev->data->mac_addrs = (struct rte_ether_addr *)
 220                 vf_data[representor->vf_id].vf_mac_addresses;
 221
 222         /* Link state. Inherited from PF */
 223         link = &representor->pf_ethdev->data->dev_link;
 224
 225         ethdev->data->dev_link.link_speed = link->link_speed;
 226         ethdev->data->dev_link.link_duplex = link->link_duplex;
 227         ethdev->data->dev_link.link_status = link->link_status;
 228         ethdev->data->dev_link.link_autoneg = link->link_autoneg;
 229
 230         return 0;
 231 }
 232
 233 int
 234 ixgbe_vf_representor_uninit(struct rte_eth_dev *ethdev)
 235 {
 236         /* mac_addrs must not be freed because part of ixgbe_vf_info */
 237         ethdev->data->mac_addrs = NULL;
 238
 239         return 0;
 240 }