drivers/net/ice/ice_dcf_vf_representor.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2020 Intel Corporation
   3  */
   4
   5 #include <errno.h>
   6 #include <sys/types.h>
   7
   8 #include <rte_ethdev.h>
   9
  10 #include "ice_dcf_ethdev.h"
  11 #include "ice_rxtx.h"
  12
  13 static uint16_t
  14 ice_dcf_vf_repr_rx_burst(__rte_unused void *rxq,
  15                          __rte_unused struct rte_mbuf **rx_pkts,
  16                          __rte_unused uint16_t nb_pkts)
  17 {
  18         return 0;
  19 }
  20
  21 static uint16_t
  22 ice_dcf_vf_repr_tx_burst(__rte_unused void *txq,
  23                          __rte_unused struct rte_mbuf **tx_pkts,
  24                          __rte_unused uint16_t nb_pkts)
  25 {
  26         return 0;
  27 }
  28
  29 static int
  30 ice_dcf_vf_repr_dev_configure(struct rte_eth_dev *dev)
  31 {
  32         ice_dcf_vf_repr_init_vlan(dev);
  33
  34         return 0;
  35 }
  36
  37 static int
  38 ice_dcf_vf_repr_dev_start(struct rte_eth_dev *dev)
  39 {
  40         dev->data->dev_link.link_status = ETH_LINK_UP;
  41
  42         return 0;
  43 }
  44
  45 static int
  46 ice_dcf_vf_repr_dev_stop(struct rte_eth_dev *dev)
  47 {
  48         dev->data->dev_link.link_status = ETH_LINK_DOWN;
  49
  50         return 0;
  51 }
  52
  53 static int
  54 ice_dcf_vf_repr_dev_close(struct rte_eth_dev *dev)
  55 {
  56         return ice_dcf_vf_repr_uninit(dev);
  57 }
  58
  59 static int
  60 ice_dcf_vf_repr_rx_queue_setup(__rte_unused struct rte_eth_dev *dev,
  61                                __rte_unused uint16_t queue_id,
  62                                __rte_unused uint16_t nb_desc,
  63                                __rte_unused unsigned int socket_id,
  64                                __rte_unused const struct rte_eth_rxconf *conf,
  65                                __rte_unused struct rte_mempool *pool)
  66 {
  67         return 0;
  68 }
  69
  70 static int
  71 ice_dcf_vf_repr_tx_queue_setup(__rte_unused struct rte_eth_dev *dev,
  72                                __rte_unused uint16_t queue_id,
  73                                __rte_unused uint16_t nb_desc,
  74                                __rte_unused unsigned int socket_id,
  75                                __rte_unused const struct rte_eth_txconf *conf)
  76 {
  77         return 0;
  78 }
  79
  80 static int
  81 ice_dcf_vf_repr_promiscuous_enable(__rte_unused struct rte_eth_dev *ethdev)
  82 {
  83         return 0;
  84 }
  85
  86 static int
  87 ice_dcf_vf_repr_promiscuous_disable(__rte_unused struct rte_eth_dev *ethdev)
  88 {
  89         return 0;
  90 }
  91
  92 static int
  93 ice_dcf_vf_repr_allmulticast_enable(__rte_unused struct rte_eth_dev *dev)
  94 {
  95         return 0;
  96 }
  97
  98 static int
  99 ice_dcf_vf_repr_allmulticast_disable(__rte_unused struct rte_eth_dev *dev)
 100 {
 101         return 0;
 102 }
 103
 104 static int
 105 ice_dcf_vf_repr_link_update(__rte_unused struct rte_eth_dev *ethdev,
 106                             __rte_unused int wait_to_complete)
 107 {
 108         return 0;
 109 }
 110
 111 static __rte_always_inline struct ice_dcf_hw *
 112 ice_dcf_vf_repr_hw(struct ice_dcf_vf_repr *repr)
 113 {
 114         struct ice_dcf_adapter *dcf_adapter =
 115                         repr->dcf_eth_dev->data->dev_private;
 116
 117         return &dcf_adapter->real_hw;
 118 }
 119
 120 static int
 121 ice_dcf_vf_repr_dev_info_get(struct rte_eth_dev *dev,
 122                              struct rte_eth_dev_info *dev_info)
 123 {
 124         struct ice_dcf_vf_repr *repr = dev->data->dev_private;
 125         struct ice_dcf_hw *dcf_hw = ice_dcf_vf_repr_hw(repr);
 126
 127         dev_info->device = dev->device;
 128         dev_info->max_mac_addrs = 1;
 129         dev_info->max_rx_queues = dcf_hw->vsi_res->num_queue_pairs;
 130         dev_info->max_tx_queues = dcf_hw->vsi_res->num_queue_pairs;
 131         dev_info->min_rx_bufsize = ICE_BUF_SIZE_MIN;
 132         dev_info->max_rx_pktlen = ICE_FRAME_SIZE_MAX;
 133         dev_info->hash_key_size = dcf_hw->vf_res->rss_key_size;
 134         dev_info->reta_size = dcf_hw->vf_res->rss_lut_size;
 135         dev_info->flow_type_rss_offloads = ICE_RSS_OFFLOAD_ALL;
 136
 137         dev_info->rx_offload_capa =
 138                 DEV_RX_OFFLOAD_VLAN_STRIP |
 139                 DEV_RX_OFFLOAD_IPV4_CKSUM |
 140                 DEV_RX_OFFLOAD_UDP_CKSUM |
 141                 DEV_RX_OFFLOAD_TCP_CKSUM |
 142                 DEV_RX_OFFLOAD_OUTER_IPV4_CKSUM |
 143                 DEV_RX_OFFLOAD_SCATTER |
 144                 DEV_RX_OFFLOAD_JUMBO_FRAME |
 145                 DEV_RX_OFFLOAD_VLAN_FILTER |
 146                 DEV_RX_OFFLOAD_VLAN_EXTEND |
 147                 DEV_RX_OFFLOAD_RSS_HASH;
 148         dev_info->tx_offload_capa =
 149                 DEV_TX_OFFLOAD_VLAN_INSERT |
 150                 DEV_TX_OFFLOAD_IPV4_CKSUM |
 151                 DEV_TX_OFFLOAD_UDP_CKSUM |
 152                 DEV_TX_OFFLOAD_TCP_CKSUM |
 153                 DEV_TX_OFFLOAD_SCTP_CKSUM |
 154                 DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM |
 155                 DEV_TX_OFFLOAD_TCP_TSO |
 156                 DEV_TX_OFFLOAD_VXLAN_TNL_TSO |
 157                 DEV_TX_OFFLOAD_GRE_TNL_TSO |
 158                 DEV_TX_OFFLOAD_IPIP_TNL_TSO |
 159                 DEV_TX_OFFLOAD_GENEVE_TNL_TSO |
 160                 DEV_TX_OFFLOAD_MULTI_SEGS;
 161
 162         dev_info->default_rxconf = (struct rte_eth_rxconf) {
 163                 .rx_thresh = {
 164                         .pthresh = ICE_DEFAULT_RX_PTHRESH,
 165                         .hthresh = ICE_DEFAULT_RX_HTHRESH,
 166                         .wthresh = ICE_DEFAULT_RX_WTHRESH,
 167                 },
 168                 .rx_free_thresh = ICE_DEFAULT_RX_FREE_THRESH,
 169                 .rx_drop_en = 0,
 170                 .offloads = 0,
 171         };
 172
 173         dev_info->default_txconf = (struct rte_eth_txconf) {
 174                 .tx_thresh = {
 175                         .pthresh = ICE_DEFAULT_TX_PTHRESH,
 176                         .hthresh = ICE_DEFAULT_TX_HTHRESH,
 177                         .wthresh = ICE_DEFAULT_TX_WTHRESH,
 178                 },
 179                 .tx_free_thresh = ICE_DEFAULT_TX_FREE_THRESH,
 180                 .tx_rs_thresh = ICE_DEFAULT_TX_RSBIT_THRESH,
 181                 .offloads = 0,
 182         };
 183
 184         dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
 185                 .nb_max = ICE_MAX_RING_DESC,
 186                 .nb_min = ICE_MIN_RING_DESC,
 187                 .nb_align = ICE_ALIGN_RING_DESC,
 188         };
 189
 190         dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
 191                 .nb_max = ICE_MAX_RING_DESC,
 192                 .nb_min = ICE_MIN_RING_DESC,
 193                 .nb_align = ICE_ALIGN_RING_DESC,
 194         };
 195
 196         dev_info->switch_info.name = dcf_hw->eth_dev->device->name;
 197         dev_info->switch_info.domain_id = repr->switch_domain_id;
 198         dev_info->switch_info.port_id = repr->vf_id;
 199
 200         return 0;
 201 }
 202
 203 static __rte_always_inline bool
 204 ice_dcf_vlan_offload_ena(struct ice_dcf_vf_repr *repr)
 205 {
 206         return !!(ice_dcf_vf_repr_hw(repr)->vf_res->vf_cap_flags &
 207                   VIRTCHNL_VF_OFFLOAD_VLAN_V2);
 208 }
 209
 210 static int
 211 ice_dcf_vlan_offload_config(struct ice_dcf_vf_repr *repr,
 212                             struct virtchnl_dcf_vlan_offload *vlan_offload)
 213 {
 214         struct dcf_virtchnl_cmd args;
 215         int err;
 216
 217         memset(&args, 0, sizeof(args));
 218         args.v_op = VIRTCHNL_OP_DCF_VLAN_OFFLOAD;
 219         args.req_msg = (uint8_t *)vlan_offload;
 220         args.req_msglen = sizeof(*vlan_offload);
 221
 222         err = ice_dcf_execute_virtchnl_cmd(ice_dcf_vf_repr_hw(repr), &args);
 223         if (err)
 224                 PMD_DRV_LOG(ERR,
 225                             "Failed to execute command of VIRTCHNL_OP_DCF_VLAN_OFFLOAD");
 226
 227         return err;
 228 }
 229
 230 static int
 231 ice_dcf_vf_repr_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 232 {
 233         struct ice_dcf_vf_repr *repr = dev->data->dev_private;
 234         struct rte_eth_conf *dev_conf = &dev->data->dev_conf;
 235         struct virtchnl_dcf_vlan_offload vlan_offload;
 236         int err;
 237
 238         if (!ice_dcf_vlan_offload_ena(repr))
 239                 return -ENOTSUP;
 240
 241         /* Vlan stripping setting */
 242         if (mask & ETH_VLAN_STRIP_MASK) {
 243                 bool enable = !!(dev_conf->rxmode.offloads &
 244                                  DEV_RX_OFFLOAD_VLAN_STRIP);
 245
 246                 if (enable && repr->outer_vlan_info.port_vlan_ena) {
 247                         PMD_DRV_LOG(ERR,
 248                                     "Disable the port VLAN firstly\n");
 249                         return -EINVAL;
 250                 }
 251
 252                 memset(&vlan_offload, 0, sizeof(vlan_offload));
 253
 254                 if (enable)
 255                         vlan_offload.vlan_flags =
 256                                         VIRTCHNL_DCF_VLAN_STRIP_INTO_RX_DESC <<
 257                                         VIRTCHNL_DCF_VLAN_STRIP_MODE_S;
 258                 else if (repr->outer_vlan_info.stripping_ena && !enable)
 259                         vlan_offload.vlan_flags =
 260                                         VIRTCHNL_DCF_VLAN_STRIP_DISABLE <<
 261                                         VIRTCHNL_DCF_VLAN_STRIP_MODE_S;
 262
 263                 if (vlan_offload.vlan_flags) {
 264                         vlan_offload.vf_id = repr->vf_id;
 265                         vlan_offload.tpid = repr->outer_vlan_info.tpid;
 266                         vlan_offload.vlan_flags |=
 267                                         VIRTCHNL_DCF_VLAN_TYPE_OUTER <<
 268                                         VIRTCHNL_DCF_VLAN_TYPE_S;
 269
 270                         err = ice_dcf_vlan_offload_config(repr, &vlan_offload);
 271                         if (err)
 272                                 return -EIO;
 273
 274                         repr->outer_vlan_info.stripping_ena = enable;
 275                 }
 276         }
 277
 278         return 0;
 279 }
 280
 281 static int
 282 ice_dcf_vf_repr_vlan_pvid_set(struct rte_eth_dev *dev,
 283                               uint16_t pvid, int on)
 284 {
 285         struct ice_dcf_vf_repr *repr = dev->data->dev_private;
 286         struct virtchnl_dcf_vlan_offload vlan_offload;
 287         int err;
 288
 289         if (!ice_dcf_vlan_offload_ena(repr))
 290                 return -ENOTSUP;
 291
 292         if (repr->outer_vlan_info.stripping_ena) {
 293                 PMD_DRV_LOG(ERR,
 294                             "Disable the VLAN stripping firstly\n");
 295                 return -EINVAL;
 296         }
 297
 298         if (pvid > RTE_ETHER_MAX_VLAN_ID)
 299                 return -EINVAL;
 300
 301         memset(&vlan_offload, 0, sizeof(vlan_offload));
 302
 303         if (on)
 304                 vlan_offload.vlan_flags =
 305                                 (VIRTCHNL_DCF_VLAN_INSERT_PORT_BASED <<
 306                                  VIRTCHNL_DCF_VLAN_INSERT_MODE_S);
 307         else
 308                 vlan_offload.vlan_flags =
 309                                 (VIRTCHNL_DCF_VLAN_INSERT_DISABLE <<
 310                                  VIRTCHNL_DCF_VLAN_INSERT_MODE_S);
 311
 312         vlan_offload.vf_id = repr->vf_id;
 313         vlan_offload.tpid = repr->outer_vlan_info.tpid;
 314         vlan_offload.vlan_flags |= (VIRTCHNL_DCF_VLAN_TYPE_OUTER <<
 315                                     VIRTCHNL_DCF_VLAN_TYPE_S);
 316         vlan_offload.vlan_id = pvid;
 317
 318         err = ice_dcf_vlan_offload_config(repr, &vlan_offload);
 319         if (!err) {
 320                 if (on) {
 321                         repr->outer_vlan_info.port_vlan_ena = true;
 322                         repr->outer_vlan_info.vid = pvid;
 323                 } else {
 324                         repr->outer_vlan_info.port_vlan_ena = false;
 325                 }
 326         }
 327
 328         return err;
 329 }
 330
 331 static int
 332 ice_dcf_vf_repr_vlan_tpid_set(struct rte_eth_dev *dev,
 333                               enum rte_vlan_type vlan_type, uint16_t tpid)
 334 {
 335         struct ice_dcf_vf_repr *repr = dev->data->dev_private;
 336         int err = 0;
 337
 338         if (!ice_dcf_vlan_offload_ena(repr))
 339                 return -ENOTSUP;
 340
 341         if (vlan_type != ETH_VLAN_TYPE_OUTER) {
 342                 PMD_DRV_LOG(ERR,
 343                             "Can accelerate only outer VLAN in QinQ\n");
 344                 return -EINVAL;
 345         }
 346
 347         if (tpid != RTE_ETHER_TYPE_QINQ &&
 348             tpid != RTE_ETHER_TYPE_VLAN &&
 349             tpid != RTE_ETHER_TYPE_QINQ1) {
 350                 PMD_DRV_LOG(ERR,
 351                             "Invalid TPID: 0x%04x\n", tpid);
 352                 return -EINVAL;
 353         }
 354
 355         repr->outer_vlan_info.tpid = tpid;
 356
 357         if (repr->outer_vlan_info.port_vlan_ena) {
 358                 err = ice_dcf_vf_repr_vlan_pvid_set(dev,
 359                                                     repr->outer_vlan_info.vid,
 360                                                     true);
 361                 if (err) {
 362                         PMD_DRV_LOG(ERR,
 363                                     "Failed to reset port VLAN : %d\n",
 364                                     err);
 365                         return err;
 366                 }
 367         }
 368
 369         if (repr->outer_vlan_info.stripping_ena) {
 370                 err = ice_dcf_vf_repr_vlan_offload_set(dev,
 371                                                        ETH_VLAN_STRIP_MASK);
 372                 if (err) {
 373                         PMD_DRV_LOG(ERR,
 374                                     "Failed to reset VLAN stripping : %d\n",
 375                                     err);
 376                         return err;
 377                 }
 378         }
 379
 380         return 0;
 381 }
 382
 383 static const struct eth_dev_ops ice_dcf_vf_repr_dev_ops = {
 384         .dev_configure        = ice_dcf_vf_repr_dev_configure,
 385         .dev_start            = ice_dcf_vf_repr_dev_start,
 386         .dev_stop             = ice_dcf_vf_repr_dev_stop,
 387         .dev_close            = ice_dcf_vf_repr_dev_close,
 388         .dev_infos_get        = ice_dcf_vf_repr_dev_info_get,
 389         .rx_queue_setup       = ice_dcf_vf_repr_rx_queue_setup,
 390         .tx_queue_setup       = ice_dcf_vf_repr_tx_queue_setup,
 391         .promiscuous_enable   = ice_dcf_vf_repr_promiscuous_enable,
 392         .promiscuous_disable  = ice_dcf_vf_repr_promiscuous_disable,
 393         .allmulticast_enable  = ice_dcf_vf_repr_allmulticast_enable,
 394         .allmulticast_disable = ice_dcf_vf_repr_allmulticast_disable,
 395         .link_update          = ice_dcf_vf_repr_link_update,
 396         .vlan_offload_set     = ice_dcf_vf_repr_vlan_offload_set,
 397         .vlan_pvid_set        = ice_dcf_vf_repr_vlan_pvid_set,
 398         .vlan_tpid_set        = ice_dcf_vf_repr_vlan_tpid_set,
 399 };
 400
 401 int
 402 ice_dcf_vf_repr_init(struct rte_eth_dev *vf_rep_eth_dev, void *init_param)
 403 {
 404         struct ice_dcf_vf_repr *repr = vf_rep_eth_dev->data->dev_private;
 405         struct ice_dcf_vf_repr_param *param = init_param;
 406
 407         repr->dcf_eth_dev = param->dcf_eth_dev;
 408         repr->switch_domain_id = param->switch_domain_id;
 409         repr->vf_id = param->vf_id;
 410         repr->outer_vlan_info.port_vlan_ena = false;
 411         repr->outer_vlan_info.stripping_ena = false;
 412         repr->outer_vlan_info.tpid = RTE_ETHER_TYPE_VLAN;
 413
 414         vf_rep_eth_dev->dev_ops = &ice_dcf_vf_repr_dev_ops;
 415
 416         vf_rep_eth_dev->rx_pkt_burst = ice_dcf_vf_repr_rx_burst;
 417         vf_rep_eth_dev->tx_pkt_burst = ice_dcf_vf_repr_tx_burst;
 418
 419         vf_rep_eth_dev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR;
 420         vf_rep_eth_dev->data->representor_id = repr->vf_id;
 421
 422         vf_rep_eth_dev->data->mac_addrs = &repr->mac_addr;
 423
 424         rte_eth_random_addr(repr->mac_addr.addr_bytes);
 425
 426         return 0;
 427 }
 428
 429 int
 430 ice_dcf_vf_repr_uninit(struct rte_eth_dev *vf_rep_eth_dev)
 431 {
 432         vf_rep_eth_dev->data->mac_addrs = NULL;
 433
 434         return 0;
 435 }
 436
 437 int
 438 ice_dcf_vf_repr_init_vlan(struct rte_eth_dev *vf_rep_eth_dev)
 439 {
 440         struct ice_dcf_vf_repr *repr = vf_rep_eth_dev->data->dev_private;
 441         int err;
 442
 443         err = ice_dcf_vf_repr_vlan_offload_set(vf_rep_eth_dev,
 444                                                ETH_VLAN_STRIP_MASK);
 445         if (err) {
 446                 PMD_DRV_LOG(ERR, "Failed to set VLAN offload");
 447                 return err;
 448         }
 449
 450         if (repr->outer_vlan_info.port_vlan_ena) {
 451                 err = ice_dcf_vf_repr_vlan_pvid_set(vf_rep_eth_dev,
 452                                                     repr->outer_vlan_info.vid,
 453                                                     true);
 454                 if (err) {
 455                         PMD_DRV_LOG(ERR, "Failed to enable port VLAN");
 456                         return err;
 457                 }
 458         }
 459
 460         return 0;
 461 }
 462
 463 void
 464 ice_dcf_vf_repr_stop_all(struct ice_dcf_adapter *dcf_adapter)
 465 {
 466         uint16_t vf_id;
 467         int ret;
 468
 469         if (!dcf_adapter->repr_infos)
 470                 return;
 471
 472         for (vf_id = 0; vf_id < dcf_adapter->real_hw.num_vfs; vf_id++) {
 473                 struct rte_eth_dev *vf_rep_eth_dev =
 474                                 dcf_adapter->repr_infos[vf_id].vf_rep_eth_dev;
 475                 if (!vf_rep_eth_dev || vf_rep_eth_dev->data->dev_started == 0)
 476                         continue;
 477
 478                 ret = ice_dcf_vf_repr_dev_stop(vf_rep_eth_dev);
 479                 if (!ret)
 480                         vf_rep_eth_dev->data->dev_started = 0;
 481         }
 482 }