drivers/net/ice/ice_dcf_ethdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2020 Intel Corporation
   3  */
   4
   5 #include <errno.h>
   6 #include <stdbool.h>
   7 #include <sys/types.h>
   8 #include <sys/ioctl.h>
   9 #include <unistd.h>
  10
  11 #include <rte_interrupts.h>
  12 #include <rte_debug.h>
  13 #include <rte_pci.h>
  14 #include <rte_atomic.h>
  15 #include <rte_eal.h>
  16 #include <rte_ether.h>
  17 #include <rte_ethdev_pci.h>
  18 #include <rte_kvargs.h>
  19 #include <rte_malloc.h>
  20 #include <rte_memzone.h>
  21 #include <rte_dev.h>
  22
  23 #include <iavf_devids.h>
  24
  25 #include "ice_generic_flow.h"
  26 #include "ice_dcf_ethdev.h"
  27
  28 static uint16_t
  29 ice_dcf_recv_pkts(__rte_unused void *rx_queue,
  30                   __rte_unused struct rte_mbuf **bufs,
  31                   __rte_unused uint16_t nb_pkts)
  32 {
  33         return 0;
  34 }
  35
  36 static uint16_t
  37 ice_dcf_xmit_pkts(__rte_unused void *tx_queue,
  38                   __rte_unused struct rte_mbuf **bufs,
  39                   __rte_unused uint16_t nb_pkts)
  40 {
  41         return 0;
  42 }
  43
  44 static int
  45 ice_dcf_dev_start(struct rte_eth_dev *dev)
  46 {
  47         dev->data->dev_link.link_status = ETH_LINK_UP;
  48
  49         return 0;
  50 }
  51
  52 static void
  53 ice_dcf_dev_stop(struct rte_eth_dev *dev)
  54 {
  55         dev->data->dev_link.link_status = ETH_LINK_DOWN;
  56 }
  57
  58 static int
  59 ice_dcf_dev_configure(__rte_unused struct rte_eth_dev *dev)
  60 {
  61         return 0;
  62 }
  63
  64 static int
  65 ice_dcf_dev_info_get(struct rte_eth_dev *dev,
  66                      struct rte_eth_dev_info *dev_info)
  67 {
  68         struct ice_dcf_adapter *adapter = dev->data->dev_private;
  69
  70         dev_info->max_mac_addrs = 1;
  71         dev_info->max_rx_pktlen = (uint32_t)-1;
  72         dev_info->max_rx_queues = RTE_DIM(adapter->rxqs);
  73         dev_info->max_tx_queues = RTE_DIM(adapter->txqs);
  74
  75         return 0;
  76 }
  77
  78 static int
  79 ice_dcf_stats_get(__rte_unused struct rte_eth_dev *dev,
  80                   __rte_unused struct rte_eth_stats *igb_stats)
  81 {
  82         return 0;
  83 }
  84
  85 static int
  86 ice_dcf_stats_reset(__rte_unused struct rte_eth_dev *dev)
  87 {
  88         return 0;
  89 }
  90
  91 static int
  92 ice_dcf_dev_promiscuous_enable(__rte_unused struct rte_eth_dev *dev)
  93 {
  94         return 0;
  95 }
  96
  97 static int
  98 ice_dcf_dev_promiscuous_disable(__rte_unused struct rte_eth_dev *dev)
  99 {
 100         return 0;
 101 }
 102
 103 static int
 104 ice_dcf_dev_allmulticast_enable(__rte_unused struct rte_eth_dev *dev)
 105 {
 106         return 0;
 107 }
 108
 109 static int
 110 ice_dcf_dev_allmulticast_disable(__rte_unused struct rte_eth_dev *dev)
 111 {
 112         return 0;
 113 }
 114
 115 static int
 116 ice_dcf_dev_filter_ctrl(struct rte_eth_dev *dev,
 117                         enum rte_filter_type filter_type,
 118                         __rte_unused enum rte_filter_op filter_op,
 119                         __rte_unused void *arg)
 120 {
 121         int ret = 0;
 122
 123         if (!dev)
 124                 return -EINVAL;
 125
 126         switch (filter_type) {
 127         default:
 128                 PMD_DRV_LOG(WARNING, "Filter type (%d) not supported",
 129                             filter_type);
 130                 ret = -EINVAL;
 131                 break;
 132         }
 133
 134         return ret;
 135 }
 136
 137 static void
 138 ice_dcf_dev_close(struct rte_eth_dev *dev)
 139 {
 140         struct ice_dcf_adapter *adapter = dev->data->dev_private;
 141
 142         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 143                 return;
 144
 145         dev->dev_ops = NULL;
 146         dev->rx_pkt_burst = NULL;
 147         dev->tx_pkt_burst = NULL;
 148         dev->data->mac_addrs = NULL;
 149
 150         ice_dcf_uninit_hw(dev, &adapter->real_hw);
 151 }
 152
 153 static void
 154 ice_dcf_queue_release(__rte_unused void *q)
 155 {
 156 }
 157
 158 static int
 159 ice_dcf_link_update(__rte_unused struct rte_eth_dev *dev,
 160                     __rte_unused int wait_to_complete)
 161 {
 162         return 0;
 163 }
 164
 165 static int
 166 ice_dcf_rx_queue_setup(struct rte_eth_dev *dev,
 167                        uint16_t rx_queue_id,
 168                        __rte_unused uint16_t nb_rx_desc,
 169                        __rte_unused unsigned int socket_id,
 170                        __rte_unused const struct rte_eth_rxconf *rx_conf,
 171                        __rte_unused struct rte_mempool *mb_pool)
 172 {
 173         struct ice_dcf_adapter *adapter = dev->data->dev_private;
 174
 175         dev->data->rx_queues[rx_queue_id] = &adapter->rxqs[rx_queue_id];
 176
 177         return 0;
 178 }
 179
 180 static int
 181 ice_dcf_tx_queue_setup(struct rte_eth_dev *dev,
 182                        uint16_t tx_queue_id,
 183                        __rte_unused uint16_t nb_tx_desc,
 184                        __rte_unused unsigned int socket_id,
 185                        __rte_unused const struct rte_eth_txconf *tx_conf)
 186 {
 187         struct ice_dcf_adapter *adapter = dev->data->dev_private;
 188
 189         dev->data->tx_queues[tx_queue_id] = &adapter->txqs[tx_queue_id];
 190
 191         return 0;
 192 }
 193
 194 static const struct eth_dev_ops ice_dcf_eth_dev_ops = {
 195         .dev_start               = ice_dcf_dev_start,
 196         .dev_stop                = ice_dcf_dev_stop,
 197         .dev_close               = ice_dcf_dev_close,
 198         .dev_configure           = ice_dcf_dev_configure,
 199         .dev_infos_get           = ice_dcf_dev_info_get,
 200         .rx_queue_setup          = ice_dcf_rx_queue_setup,
 201         .tx_queue_setup          = ice_dcf_tx_queue_setup,
 202         .rx_queue_release        = ice_dcf_queue_release,
 203         .tx_queue_release        = ice_dcf_queue_release,
 204         .link_update             = ice_dcf_link_update,
 205         .stats_get               = ice_dcf_stats_get,
 206         .stats_reset             = ice_dcf_stats_reset,
 207         .promiscuous_enable      = ice_dcf_dev_promiscuous_enable,
 208         .promiscuous_disable     = ice_dcf_dev_promiscuous_disable,
 209         .allmulticast_enable     = ice_dcf_dev_allmulticast_enable,
 210         .allmulticast_disable    = ice_dcf_dev_allmulticast_disable,
 211         .filter_ctrl             = ice_dcf_dev_filter_ctrl,
 212 };
 213
 214 static int
 215 ice_dcf_dev_init(struct rte_eth_dev *eth_dev)
 216 {
 217         struct ice_dcf_adapter *adapter = eth_dev->data->dev_private;
 218
 219         eth_dev->dev_ops = &ice_dcf_eth_dev_ops;
 220         eth_dev->rx_pkt_burst = ice_dcf_recv_pkts;
 221         eth_dev->tx_pkt_burst = ice_dcf_xmit_pkts;
 222
 223         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 224                 return 0;
 225
 226         eth_dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
 227
 228         if (ice_dcf_init_hw(eth_dev, &adapter->real_hw) != 0) {
 229                 PMD_INIT_LOG(ERR, "Failed to init DCF hardware");
 230                 return -1;
 231         }
 232
 233         rte_eth_random_addr(adapter->mac_addr.addr_bytes);
 234         eth_dev->data->mac_addrs = &adapter->mac_addr;
 235
 236         return 0;
 237 }
 238
 239 static int
 240 ice_dcf_dev_uninit(struct rte_eth_dev *eth_dev)
 241 {
 242         ice_dcf_dev_close(eth_dev);
 243
 244         return 0;
 245 }
 246
 247 static int
 248 ice_dcf_cap_check_handler(__rte_unused const char *key,
 249                           const char *value, __rte_unused void *opaque)
 250 {
 251         if (strcmp(value, "dcf"))
 252                 return -1;
 253
 254         return 0;
 255 }
 256
 257 static int
 258 ice_dcf_cap_selected(struct rte_devargs *devargs)
 259 {
 260         struct rte_kvargs *kvlist;
 261         const char *key = "cap";
 262         int ret = 0;
 263
 264         if (devargs == NULL)
 265                 return 0;
 266
 267         kvlist = rte_kvargs_parse(devargs->args, NULL);
 268         if (kvlist == NULL)
 269                 return 0;
 270
 271         if (!rte_kvargs_count(kvlist, key))
 272                 goto exit;
 273
 274         /* dcf capability selected when there's a key-value pair: cap=dcf */
 275         if (rte_kvargs_process(kvlist, key,
 276                                ice_dcf_cap_check_handler, NULL) < 0)
 277                 goto exit;
 278
 279         ret = 1;
 280
 281 exit:
 282         rte_kvargs_free(kvlist);
 283         return ret;
 284 }
 285
 286 static int eth_ice_dcf_pci_probe(__rte_unused struct rte_pci_driver *pci_drv,
 287                              struct rte_pci_device *pci_dev)
 288 {
 289         if (!ice_dcf_cap_selected(pci_dev->device.devargs))
 290                 return 1;
 291
 292         return rte_eth_dev_pci_generic_probe(pci_dev,
 293                                              sizeof(struct ice_dcf_adapter),
 294                                              ice_dcf_dev_init);
 295 }
 296
 297 static int eth_ice_dcf_pci_remove(struct rte_pci_device *pci_dev)
 298 {
 299         return rte_eth_dev_pci_generic_remove(pci_dev, ice_dcf_dev_uninit);
 300 }
 301
 302 static const struct rte_pci_id pci_id_ice_dcf_map[] = {
 303         { RTE_PCI_DEVICE(IAVF_INTEL_VENDOR_ID, IAVF_DEV_ID_ADAPTIVE_VF) },
 304         { .vendor_id = 0, /* sentinel */ },
 305 };
 306
 307 static struct rte_pci_driver rte_ice_dcf_pmd = {
 308         .id_table = pci_id_ice_dcf_map,
 309         .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
 310         .probe = eth_ice_dcf_pci_probe,
 311         .remove = eth_ice_dcf_pci_remove,
 312 };
 313
 314 RTE_PMD_REGISTER_PCI(net_ice_dcf, rte_ice_dcf_pmd);
 315 RTE_PMD_REGISTER_PCI_TABLE(net_ice_dcf, pci_id_ice_dcf_map);
 316 RTE_PMD_REGISTER_KMOD_DEP(net_ice_dcf, "* igb_uio | vfio-pci");
 317 RTE_PMD_REGISTER_PARAM_STRING(net_ice_dcf, "cap=dcf");