drivers/net/ice/ice_dcf_parent.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2020 Intel Corporation
   3  */
   4 #include <sys/types.h>
   5 #include <sys/stat.h>
   6 #include <pthread.h>
   7 #include <unistd.h>
   8
   9 #include <rte_spinlock.h>
  10
  11 #include "ice_dcf_ethdev.h"
  12 #include "ice_generic_flow.h"
  13
  14 #define ICE_DCF_VSI_UPDATE_SERVICE_INTERVAL     100000 /* us */
  15 static rte_spinlock_t vsi_update_lock = RTE_SPINLOCK_INITIALIZER;
  16
  17 struct ice_dcf_reset_event_param {
  18         struct ice_dcf_hw *dcf_hw;
  19
  20         bool vfr; /* VF reset event */
  21         uint16_t vf_id; /* The reset VF ID */
  22 };
  23
  24 static __rte_always_inline void
  25 ice_dcf_update_vsi_ctx(struct ice_hw *hw, uint16_t vsi_handle,
  26                        uint16_t vsi_map)
  27 {
  28         struct ice_vsi_ctx *vsi_ctx;
  29         bool first_update = false;
  30         uint16_t new_vsi_num;
  31
  32         if (unlikely(vsi_handle >= ICE_MAX_VSI)) {
  33                 PMD_DRV_LOG(ERR, "Invalid vsi handle %u", vsi_handle);
  34                 return;
  35         }
  36
  37         vsi_ctx = hw->vsi_ctx[vsi_handle];
  38
  39         if (vsi_map & VIRTCHNL_DCF_VF_VSI_VALID) {
  40                 if (!vsi_ctx) {
  41                         vsi_ctx = ice_malloc(hw, sizeof(*vsi_ctx));
  42                         if (!vsi_ctx) {
  43                                 PMD_DRV_LOG(ERR, "No memory for vsi context %u",
  44                                             vsi_handle);
  45                                 return;
  46                         }
  47                         hw->vsi_ctx[vsi_handle] = vsi_ctx;
  48                         first_update = true;
  49                 }
  50
  51                 new_vsi_num = (vsi_map & VIRTCHNL_DCF_VF_VSI_ID_M) >>
  52                         VIRTCHNL_DCF_VF_VSI_ID_S;
  53
  54                 /* Redirect rules if vsi mapping table changes. */
  55                 if (!first_update) {
  56                         struct ice_flow_redirect rd;
  57
  58                         memset(&rd, 0, sizeof(struct ice_flow_redirect));
  59                         rd.type = ICE_FLOW_REDIRECT_VSI;
  60                         rd.vsi_handle = vsi_handle;
  61                         rd.new_vsi_num = new_vsi_num;
  62                         ice_flow_redirect((struct ice_adapter *)hw->back, &rd);
  63                 } else {
  64                         vsi_ctx->vsi_num = new_vsi_num;
  65                 }
  66
  67                 PMD_DRV_LOG(DEBUG, "VF%u is assigned with vsi number %u",
  68                             vsi_handle, vsi_ctx->vsi_num);
  69         } else {
  70                 hw->vsi_ctx[vsi_handle] = NULL;
  71
  72                 ice_free(hw, vsi_ctx);
  73
  74                 PMD_DRV_LOG(NOTICE, "VF%u is disabled", vsi_handle);
  75         }
  76 }
  77
  78 static void
  79 ice_dcf_update_vf_vsi_map(struct ice_hw *hw, uint16_t num_vfs,
  80                           uint16_t *vf_vsi_map)
  81 {
  82         uint16_t vf_id;
  83
  84         for (vf_id = 0; vf_id < num_vfs; vf_id++)
  85                 ice_dcf_update_vsi_ctx(hw, vf_id, vf_vsi_map[vf_id]);
  86 }
  87
  88 static void
  89 ice_dcf_update_pf_vsi_map(struct ice_hw *hw, uint16_t pf_vsi_idx,
  90                         uint16_t pf_vsi_num)
  91 {
  92         struct ice_vsi_ctx *vsi_ctx;
  93
  94         if (unlikely(pf_vsi_idx >= ICE_MAX_VSI)) {
  95                 PMD_DRV_LOG(ERR, "Invalid vsi handle %u", pf_vsi_idx);
  96                 return;
  97         }
  98
  99         vsi_ctx = hw->vsi_ctx[pf_vsi_idx];
 100
 101         if (!vsi_ctx)
 102                 vsi_ctx = ice_malloc(hw, sizeof(*vsi_ctx));
 103
 104         if (!vsi_ctx) {
 105                 PMD_DRV_LOG(ERR, "No memory for vsi context %u",
 106                                 pf_vsi_idx);
 107                 return;
 108         }
 109
 110         vsi_ctx->vsi_num = pf_vsi_num;
 111         hw->vsi_ctx[pf_vsi_idx] = vsi_ctx;
 112
 113         PMD_DRV_LOG(DEBUG, "VF%u is assigned with vsi number %u",
 114                         pf_vsi_idx, vsi_ctx->vsi_num);
 115 }
 116
 117 static void*
 118 ice_dcf_vsi_update_service_handler(void *param)
 119 {
 120         struct ice_dcf_reset_event_param *reset_param = param;
 121         struct ice_dcf_hw *hw = reset_param->dcf_hw;
 122         struct ice_dcf_adapter *adapter;
 123
 124         pthread_detach(pthread_self());
 125
 126         rte_delay_us(ICE_DCF_VSI_UPDATE_SERVICE_INTERVAL);
 127
 128         rte_spinlock_lock(&vsi_update_lock);
 129
 130         adapter = container_of(hw, struct ice_dcf_adapter, real_hw);
 131
 132         if (!ice_dcf_handle_vsi_update_event(hw))
 133                 ice_dcf_update_vf_vsi_map(&adapter->parent.hw,
 134                                           hw->num_vfs, hw->vf_vsi_map);
 135
 136         if (reset_param->vfr && adapter->repr_infos) {
 137                 struct rte_eth_dev *vf_rep_eth_dev =
 138                         adapter->repr_infos[reset_param->vf_id].vf_rep_eth_dev;
 139                 if (vf_rep_eth_dev && vf_rep_eth_dev->data->dev_started) {
 140                         PMD_DRV_LOG(DEBUG, "VF%u representor is resetting",
 141                                     reset_param->vf_id);
 142                         ice_dcf_vf_repr_init_vlan(vf_rep_eth_dev);
 143                 }
 144         }
 145
 146         rte_spinlock_unlock(&vsi_update_lock);
 147
 148         free(param);
 149
 150         return NULL;
 151 }
 152
 153 static void
 154 start_vsi_reset_thread(struct ice_dcf_hw *dcf_hw, bool vfr, uint16_t vf_id)
 155 {
 156 #define THREAD_NAME_LEN 16
 157         struct ice_dcf_reset_event_param *param;
 158         char name[THREAD_NAME_LEN];
 159         pthread_t thread;
 160         int ret;
 161
 162         param = malloc(sizeof(*param));
 163         if (!param) {
 164                 PMD_DRV_LOG(ERR, "Failed to allocate the memory for reset handling");
 165                 return;
 166         }
 167
 168         param->dcf_hw = dcf_hw;
 169         param->vfr = vfr;
 170         param->vf_id = vf_id;
 171
 172         snprintf(name, sizeof(name), "ice-reset-%u", vf_id);
 173         ret = rte_ctrl_thread_create(&thread, name, NULL,
 174                                      ice_dcf_vsi_update_service_handler, param);
 175         if (ret != 0) {
 176                 PMD_DRV_LOG(ERR, "Failed to start the thread for reset handling");
 177                 free(param);
 178         }
 179 }
 180
 181 void
 182 ice_dcf_handle_pf_event_msg(struct ice_dcf_hw *dcf_hw,
 183                             uint8_t *msg, uint16_t msglen)
 184 {
 185         struct virtchnl_pf_event *pf_msg = (struct virtchnl_pf_event *)msg;
 186
 187         if (msglen < sizeof(struct virtchnl_pf_event)) {
 188                 PMD_DRV_LOG(DEBUG, "Invalid event message length : %u", msglen);
 189                 return;
 190         }
 191
 192         switch (pf_msg->event) {
 193         case VIRTCHNL_EVENT_RESET_IMPENDING:
 194                 PMD_DRV_LOG(DEBUG, "VIRTCHNL_EVENT_RESET_IMPENDING event");
 195                 start_vsi_reset_thread(dcf_hw, false, 0);
 196                 break;
 197         case VIRTCHNL_EVENT_LINK_CHANGE:
 198                 PMD_DRV_LOG(DEBUG, "VIRTCHNL_EVENT_LINK_CHANGE event");
 199                 break;
 200         case VIRTCHNL_EVENT_PF_DRIVER_CLOSE:
 201                 PMD_DRV_LOG(DEBUG, "VIRTCHNL_EVENT_PF_DRIVER_CLOSE event");
 202                 break;
 203         case VIRTCHNL_EVENT_DCF_VSI_MAP_UPDATE:
 204                 PMD_DRV_LOG(DEBUG, "VIRTCHNL_EVENT_DCF_VSI_MAP_UPDATE event : VF%u with VSI num %u",
 205                             pf_msg->event_data.vf_vsi_map.vf_id,
 206                             pf_msg->event_data.vf_vsi_map.vsi_id);
 207                 start_vsi_reset_thread(dcf_hw, true,
 208                                        pf_msg->event_data.vf_vsi_map.vf_id);
 209                 break;
 210         default:
 211                 PMD_DRV_LOG(ERR, "Unknown event received %u", pf_msg->event);
 212                 break;
 213         }
 214 }
 215
 216 static int
 217 ice_dcf_init_parent_hw(struct ice_hw *hw)
 218 {
 219         struct ice_aqc_get_phy_caps_data *pcaps;
 220         enum ice_status status;
 221
 222         status = ice_aq_get_fw_ver(hw, NULL);
 223         if (status)
 224                 return status;
 225
 226         status = ice_get_caps(hw);
 227         if (status)
 228                 return status;
 229
 230         hw->port_info = (struct ice_port_info *)
 231                         ice_malloc(hw, sizeof(*hw->port_info));
 232         if (!hw->port_info)
 233                 return ICE_ERR_NO_MEMORY;
 234
 235         /* set the back pointer to HW */
 236         hw->port_info->hw = hw;
 237
 238         /* Initialize port_info struct with switch configuration data */
 239         status = ice_get_initial_sw_cfg(hw);
 240         if (status)
 241                 goto err_unroll_alloc;
 242
 243         pcaps = (struct ice_aqc_get_phy_caps_data *)
 244                 ice_malloc(hw, sizeof(*pcaps));
 245         if (!pcaps) {
 246                 status = ICE_ERR_NO_MEMORY;
 247                 goto err_unroll_alloc;
 248         }
 249
 250         /* Initialize port_info struct with PHY capabilities */
 251         status = ice_aq_get_phy_caps(hw->port_info, false,
 252                                      ICE_AQC_REPORT_TOPO_CAP_MEDIA, pcaps, NULL);
 253         ice_free(hw, pcaps);
 254         if (status)
 255                 goto err_unroll_alloc;
 256
 257         /* Initialize port_info struct with link information */
 258         status = ice_aq_get_link_info(hw->port_info, false, NULL, NULL);
 259         if (status)
 260                 goto err_unroll_alloc;
 261
 262         status = ice_init_fltr_mgmt_struct(hw);
 263         if (status)
 264                 goto err_unroll_alloc;
 265
 266         status = ice_init_hw_tbls(hw);
 267         if (status)
 268                 goto err_unroll_fltr_mgmt_struct;
 269
 270         PMD_INIT_LOG(INFO,
 271                      "firmware %d.%d.%d api %d.%d.%d build 0x%08x",
 272                      hw->fw_maj_ver, hw->fw_min_ver, hw->fw_patch,
 273                      hw->api_maj_ver, hw->api_min_ver, hw->api_patch,
 274                      hw->fw_build);
 275
 276         return ICE_SUCCESS;
 277
 278 err_unroll_fltr_mgmt_struct:
 279         ice_cleanup_fltr_mgmt_struct(hw);
 280 err_unroll_alloc:
 281         ice_free(hw, hw->port_info);
 282         hw->port_info = NULL;
 283
 284         return status;
 285 }
 286
 287 static void ice_dcf_uninit_parent_hw(struct ice_hw *hw)
 288 {
 289         ice_cleanup_fltr_mgmt_struct(hw);
 290
 291         ice_free_seg(hw);
 292         ice_free_hw_tbls(hw);
 293
 294         ice_free(hw, hw->port_info);
 295         hw->port_info = NULL;
 296
 297         ice_clear_all_vsi_ctx(hw);
 298 }
 299
 300 static int
 301 ice_dcf_request_pkg_name(struct ice_hw *hw, char *pkg_name)
 302 {
 303         struct ice_dcf_adapter *dcf_adapter =
 304                         container_of(hw, struct ice_dcf_adapter, parent.hw);
 305         struct virtchnl_pkg_info pkg_info;
 306         struct dcf_virtchnl_cmd vc_cmd;
 307         uint64_t dsn;
 308
 309         vc_cmd.v_op = VIRTCHNL_OP_DCF_GET_PKG_INFO;
 310         vc_cmd.req_msglen = 0;
 311         vc_cmd.req_msg = NULL;
 312         vc_cmd.rsp_buflen = sizeof(pkg_info);
 313         vc_cmd.rsp_msgbuf = (uint8_t *)&pkg_info;
 314
 315         if (ice_dcf_execute_virtchnl_cmd(&dcf_adapter->real_hw, &vc_cmd))
 316                 goto pkg_file_direct;
 317
 318         rte_memcpy(&dsn, pkg_info.dsn, sizeof(dsn));
 319
 320         snprintf(pkg_name, ICE_MAX_PKG_FILENAME_SIZE,
 321                  ICE_PKG_FILE_SEARCH_PATH_UPDATES "ice-%016llx.pkg",
 322                  (unsigned long long)dsn);
 323         if (!ice_access(pkg_name, 0))
 324                 return 0;
 325
 326         snprintf(pkg_name, ICE_MAX_PKG_FILENAME_SIZE,
 327                  ICE_PKG_FILE_SEARCH_PATH_DEFAULT "ice-%016llx.pkg",
 328                  (unsigned long long)dsn);
 329         if (!ice_access(pkg_name, 0))
 330                 return 0;
 331
 332 pkg_file_direct:
 333         snprintf(pkg_name,
 334                  ICE_MAX_PKG_FILENAME_SIZE, "%s", ICE_PKG_FILE_UPDATES);
 335         if (!ice_access(pkg_name, 0))
 336                 return 0;
 337
 338         snprintf(pkg_name,
 339                  ICE_MAX_PKG_FILENAME_SIZE, "%s", ICE_PKG_FILE_DEFAULT);
 340         if (!ice_access(pkg_name, 0))
 341                 return 0;
 342
 343         return -1;
 344 }
 345
 346 static int
 347 ice_dcf_load_pkg(struct ice_hw *hw)
 348 {
 349         char pkg_name[ICE_MAX_PKG_FILENAME_SIZE];
 350         uint8_t *pkg_buf;
 351         uint32_t buf_len;
 352         struct stat st;
 353         FILE *fp;
 354         int err;
 355
 356         if (ice_dcf_request_pkg_name(hw, pkg_name)) {
 357                 PMD_INIT_LOG(ERR, "Failed to locate the package file");
 358                 return -ENOENT;
 359         }
 360
 361         PMD_INIT_LOG(DEBUG, "DDP package name: %s", pkg_name);
 362
 363         err = stat(pkg_name, &st);
 364         if (err) {
 365                 PMD_INIT_LOG(ERR, "Failed to get file status");
 366                 return err;
 367         }
 368
 369         buf_len = st.st_size;
 370         pkg_buf = rte_malloc(NULL, buf_len, 0);
 371         if (!pkg_buf) {
 372                 PMD_INIT_LOG(ERR, "failed to allocate buffer of size %u for package",
 373                              buf_len);
 374                 return -1;
 375         }
 376
 377         fp = fopen(pkg_name, "rb");
 378         if (!fp)  {
 379                 PMD_INIT_LOG(ERR, "failed to open file: %s", pkg_name);
 380                 err = -1;
 381                 goto ret;
 382         }
 383
 384         err = fread(pkg_buf, buf_len, 1, fp);
 385         fclose(fp);
 386         if (err != 1) {
 387                 PMD_INIT_LOG(ERR, "failed to read package data");
 388                 err = -1;
 389                 goto ret;
 390         }
 391
 392         err = ice_copy_and_init_pkg(hw, pkg_buf, buf_len);
 393         if (err)
 394                 PMD_INIT_LOG(ERR, "ice_copy_and_init_hw failed: %d", err);
 395
 396 ret:
 397         rte_free(pkg_buf);
 398         return err;
 399 }
 400
 401 int
 402 ice_dcf_init_parent_adapter(struct rte_eth_dev *eth_dev)
 403 {
 404         struct ice_dcf_adapter *adapter = eth_dev->data->dev_private;
 405         struct ice_adapter *parent_adapter = &adapter->parent;
 406         struct ice_hw *parent_hw = &parent_adapter->hw;
 407         struct ice_dcf_hw *hw = &adapter->real_hw;
 408         const struct rte_ether_addr *mac;
 409         int err;
 410
 411         parent_adapter->pf.adapter = parent_adapter;
 412         parent_adapter->pf.dev_data = eth_dev->data;
 413         /* create a dummy main_vsi */
 414         parent_adapter->pf.main_vsi =
 415                 rte_zmalloc(NULL, sizeof(struct ice_vsi), 0);
 416         if (!parent_adapter->pf.main_vsi)
 417                 return -ENOMEM;
 418         parent_adapter->pf.main_vsi->adapter = parent_adapter;
 419         parent_adapter->pf.adapter_stopped = 1;
 420
 421         parent_hw->back = parent_adapter;
 422         parent_hw->mac_type = ICE_MAC_GENERIC;
 423         parent_hw->vendor_id = ICE_INTEL_VENDOR_ID;
 424
 425         ice_init_lock(&parent_hw->adminq.sq_lock);
 426         ice_init_lock(&parent_hw->adminq.rq_lock);
 427         parent_hw->aq_send_cmd_fn = ice_dcf_send_aq_cmd;
 428         parent_hw->aq_send_cmd_param = &adapter->real_hw;
 429         parent_hw->dcf_enabled = true;
 430
 431         err = ice_dcf_init_parent_hw(parent_hw);
 432         if (err) {
 433                 PMD_INIT_LOG(ERR, "failed to init the DCF parent hardware with error %d",
 434                              err);
 435                 return err;
 436         }
 437
 438         err = ice_dcf_load_pkg(parent_hw);
 439         if (err) {
 440                 PMD_INIT_LOG(ERR, "failed to load package with error %d",
 441                              err);
 442                 goto uninit_hw;
 443         }
 444         parent_adapter->active_pkg_type = ice_load_pkg_type(parent_hw);
 445
 446         parent_adapter->pf.main_vsi->idx = hw->num_vfs;
 447         ice_dcf_update_pf_vsi_map(parent_hw,
 448                         parent_adapter->pf.main_vsi->idx, hw->pf_vsi_id);
 449
 450         ice_dcf_update_vf_vsi_map(parent_hw, hw->num_vfs, hw->vf_vsi_map);
 451
 452         err = ice_flow_init(parent_adapter);
 453         if (err) {
 454                 PMD_INIT_LOG(ERR, "Failed to initialize flow");
 455                 goto uninit_hw;
 456         }
 457
 458         mac = (const struct rte_ether_addr *)hw->avf.mac.addr;
 459         if (rte_is_valid_assigned_ether_addr(mac))
 460                 rte_ether_addr_copy(mac, &parent_adapter->pf.dev_addr);
 461         else
 462                 rte_eth_random_addr(parent_adapter->pf.dev_addr.addr_bytes);
 463
 464         eth_dev->data->mac_addrs = &parent_adapter->pf.dev_addr;
 465
 466         return 0;
 467
 468 uninit_hw:
 469         ice_dcf_uninit_parent_hw(parent_hw);
 470         return err;
 471 }
 472
 473 void
 474 ice_dcf_uninit_parent_adapter(struct rte_eth_dev *eth_dev)
 475 {
 476         struct ice_dcf_adapter *adapter = eth_dev->data->dev_private;
 477         struct ice_adapter *parent_adapter = &adapter->parent;
 478         struct ice_hw *parent_hw = &parent_adapter->hw;
 479
 480         eth_dev->data->mac_addrs = NULL;
 481
 482         ice_flow_uninit(parent_adapter);
 483         ice_dcf_uninit_parent_hw(parent_hw);
 484 }