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                         enum rte_filter_op filter_op,
 119                         void *arg)
 120 {
 121         int ret = 0;
 122
 123         if (!dev)
 124                 return -EINVAL;
 125
 126         switch (filter_type) {
 127         case RTE_ETH_FILTER_GENERIC:
 128                 if (filter_op != RTE_ETH_FILTER_GET)
 129                         return -EINVAL;
 130                 *(const void **)arg = &ice_flow_ops;
 131                 break;
 132
 133         default:
 134                 PMD_DRV_LOG(WARNING, "Filter type (%d) not supported",
 135                             filter_type);
 136                 ret = -EINVAL;
 137                 break;
 138         }
 139
 140         return ret;
 141 }
 142
 143 static void
 144 ice_dcf_dev_close(struct rte_eth_dev *dev)
 145 {
 146         struct ice_dcf_adapter *adapter = dev->data->dev_private;
 147
 148         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 149                 return;
 150
 151         dev->dev_ops = NULL;
 152         dev->rx_pkt_burst = NULL;
 153         dev->tx_pkt_burst = NULL;
 154
 155         ice_dcf_uninit_parent_adapter(dev);
 156         ice_dcf_uninit_hw(dev, &adapter->real_hw);
 157 }
 158
 159 static void
 160 ice_dcf_queue_release(__rte_unused void *q)
 161 {
 162 }
 163
 164 static int
 165 ice_dcf_link_update(__rte_unused struct rte_eth_dev *dev,
 166                     __rte_unused int wait_to_complete)
 167 {
 168         return 0;
 169 }
 170
 171 static int
 172 ice_dcf_rx_queue_setup(struct rte_eth_dev *dev,
 173                        uint16_t rx_queue_id,
 174                        __rte_unused uint16_t nb_rx_desc,
 175                        __rte_unused unsigned int socket_id,
 176                        __rte_unused const struct rte_eth_rxconf *rx_conf,
 177                        __rte_unused struct rte_mempool *mb_pool)
 178 {
 179         struct ice_dcf_adapter *adapter = dev->data->dev_private;
 180
 181         dev->data->rx_queues[rx_queue_id] = &adapter->rxqs[rx_queue_id];
 182
 183         return 0;
 184 }
 185
 186 static int
 187 ice_dcf_tx_queue_setup(struct rte_eth_dev *dev,
 188                        uint16_t tx_queue_id,
 189                        __rte_unused uint16_t nb_tx_desc,
 190                        __rte_unused unsigned int socket_id,
 191                        __rte_unused const struct rte_eth_txconf *tx_conf)
 192 {
 193         struct ice_dcf_adapter *adapter = dev->data->dev_private;
 194
 195         dev->data->tx_queues[tx_queue_id] = &adapter->txqs[tx_queue_id];
 196
 197         return 0;
 198 }
 199
 200 static const struct eth_dev_ops ice_dcf_eth_dev_ops = {
 201         .dev_start               = ice_dcf_dev_start,
 202         .dev_stop                = ice_dcf_dev_stop,
 203         .dev_close               = ice_dcf_dev_close,
 204         .dev_configure           = ice_dcf_dev_configure,
 205         .dev_infos_get           = ice_dcf_dev_info_get,
 206         .rx_queue_setup          = ice_dcf_rx_queue_setup,
 207         .tx_queue_setup          = ice_dcf_tx_queue_setup,
 208         .rx_queue_release        = ice_dcf_queue_release,
 209         .tx_queue_release        = ice_dcf_queue_release,
 210         .link_update             = ice_dcf_link_update,
 211         .stats_get               = ice_dcf_stats_get,
 212         .stats_reset             = ice_dcf_stats_reset,
 213         .promiscuous_enable      = ice_dcf_dev_promiscuous_enable,
 214         .promiscuous_disable     = ice_dcf_dev_promiscuous_disable,
 215         .allmulticast_enable     = ice_dcf_dev_allmulticast_enable,
 216         .allmulticast_disable    = ice_dcf_dev_allmulticast_disable,
 217         .filter_ctrl             = ice_dcf_dev_filter_ctrl,
 218 };
 219
 220 static int
 221 ice_dcf_dev_init(struct rte_eth_dev *eth_dev)
 222 {
 223         struct ice_dcf_adapter *adapter = eth_dev->data->dev_private;
 224
 225         eth_dev->dev_ops = &ice_dcf_eth_dev_ops;
 226         eth_dev->rx_pkt_burst = ice_dcf_recv_pkts;
 227         eth_dev->tx_pkt_burst = ice_dcf_xmit_pkts;
 228
 229         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 230                 return 0;
 231
 232         eth_dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
 233
 234         adapter->real_hw.vc_event_msg_cb = ice_dcf_handle_pf_event_msg;
 235         if (ice_dcf_init_hw(eth_dev, &adapter->real_hw) != 0) {
 236                 PMD_INIT_LOG(ERR, "Failed to init DCF hardware");
 237                 return -1;
 238         }
 239
 240         if (ice_dcf_init_parent_adapter(eth_dev) != 0) {
 241                 PMD_INIT_LOG(ERR, "Failed to init DCF parent adapter");
 242                 ice_dcf_uninit_hw(eth_dev, &adapter->real_hw);
 243                 return -1;
 244         }
 245
 246         return 0;
 247 }
 248
 249 static int
 250 ice_dcf_dev_uninit(struct rte_eth_dev *eth_dev)
 251 {
 252         ice_dcf_dev_close(eth_dev);
 253
 254         return 0;
 255 }
 256
 257 static int
 258 ice_dcf_cap_check_handler(__rte_unused const char *key,
 259                           const char *value, __rte_unused void *opaque)
 260 {
 261         if (strcmp(value, "dcf"))
 262                 return -1;
 263
 264         return 0;
 265 }
 266
 267 static int
 268 ice_dcf_cap_selected(struct rte_devargs *devargs)
 269 {
 270         struct rte_kvargs *kvlist;
 271         const char *key = "cap";
 272         int ret = 0;
 273
 274         if (devargs == NULL)
 275                 return 0;
 276
 277         kvlist = rte_kvargs_parse(devargs->args, NULL);
 278         if (kvlist == NULL)
 279                 return 0;
 280
 281         if (!rte_kvargs_count(kvlist, key))
 282                 goto exit;
 283
 284         /* dcf capability selected when there's a key-value pair: cap=dcf */
 285         if (rte_kvargs_process(kvlist, key,
 286                                ice_dcf_cap_check_handler, NULL) < 0)
 287                 goto exit;
 288
 289         ret = 1;
 290
 291 exit:
 292         rte_kvargs_free(kvlist);
 293         return ret;
 294 }
 295
 296 static int eth_ice_dcf_pci_probe(__rte_unused struct rte_pci_driver *pci_drv,
 297                              struct rte_pci_device *pci_dev)
 298 {
 299         if (!ice_dcf_cap_selected(pci_dev->device.devargs))
 300                 return 1;
 301
 302         return rte_eth_dev_pci_generic_probe(pci_dev,
 303                                              sizeof(struct ice_dcf_adapter),
 304                                              ice_dcf_dev_init);
 305 }
 306
 307 static int eth_ice_dcf_pci_remove(struct rte_pci_device *pci_dev)
 308 {
 309         return rte_eth_dev_pci_generic_remove(pci_dev, ice_dcf_dev_uninit);
 310 }
 311
 312 static const struct rte_pci_id pci_id_ice_dcf_map[] = {
 313         { RTE_PCI_DEVICE(IAVF_INTEL_VENDOR_ID, IAVF_DEV_ID_ADAPTIVE_VF) },
 314         { .vendor_id = 0, /* sentinel */ },
 315 };
 316
 317 static struct rte_pci_driver rte_ice_dcf_pmd = {
 318         .id_table = pci_id_ice_dcf_map,
 319         .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
 320         .probe = eth_ice_dcf_pci_probe,
 321         .remove = eth_ice_dcf_pci_remove,
 322 };
 323
 324 RTE_PMD_REGISTER_PCI(net_ice_dcf, rte_ice_dcf_pmd);
 325 RTE_PMD_REGISTER_PCI_TABLE(net_ice_dcf, pci_id_ice_dcf_map);
 326 RTE_PMD_REGISTER_KMOD_DEP(net_ice_dcf, "* igb_uio | vfio-pci");
 327 RTE_PMD_REGISTER_PARAM_STRING(net_ice_dcf, "cap=dcf");