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         rte_delay_us(ICE_DCF_VSI_UPDATE_SERVICE_INTERVAL);
 125
 126         rte_spinlock_lock(&vsi_update_lock);
 127
 128         adapter = container_of(hw, struct ice_dcf_adapter, real_hw);
 129
 130         if (!ice_dcf_handle_vsi_update_event(hw))
 131                 ice_dcf_update_vf_vsi_map(&adapter->parent.hw,
 132                                           hw->num_vfs, hw->vf_vsi_map);
 133
 134         if (reset_param->vfr && adapter->repr_infos) {
 135                 struct rte_eth_dev *vf_rep_eth_dev =
 136                         adapter->repr_infos[reset_param->vf_id].vf_rep_eth_dev;
 137                 if (vf_rep_eth_dev && vf_rep_eth_dev->data->dev_started) {
 138                         PMD_DRV_LOG(DEBUG, "VF%u representor is resetting",
 139                                     reset_param->vf_id);
 140                         ice_dcf_vf_repr_init_vlan(vf_rep_eth_dev);
 141                 }
 142         }
 143
 144         rte_spinlock_unlock(&vsi_update_lock);
 145
 146         free(param);
 147
 148         return NULL;
 149 }
 150
 151 static void
 152 start_vsi_reset_thread(struct ice_dcf_hw *dcf_hw, bool vfr, uint16_t vf_id)
 153 {
 154 #define THREAD_NAME_LEN 16
 155         struct ice_dcf_reset_event_param *param;
 156         char name[THREAD_NAME_LEN];
 157         pthread_t thread;
 158         int ret;
 159
 160         param = malloc(sizeof(*param));
 161         if (!param) {
 162                 PMD_DRV_LOG(ERR, "Failed to allocate the memory for reset handling");
 163                 return;
 164         }
 165
 166         param->dcf_hw = dcf_hw;
 167         param->vfr = vfr;
 168         param->vf_id = vf_id;
 169
 170         snprintf(name, sizeof(name), "ice-reset-%u", vf_id);
 171         ret = rte_ctrl_thread_create(&thread, name, NULL,
 172                                      ice_dcf_vsi_update_service_handler, param);
 173         if (ret != 0) {
 174                 PMD_DRV_LOG(ERR, "Failed to start the thread for reset handling");
 175                 free(param);
 176         }
 177 }
 178
 179 void
 180 ice_dcf_handle_pf_event_msg(struct ice_dcf_hw *dcf_hw,
 181                             uint8_t *msg, uint16_t msglen)
 182 {
 183         struct virtchnl_pf_event *pf_msg = (struct virtchnl_pf_event *)msg;
 184
 185         if (msglen < sizeof(struct virtchnl_pf_event)) {
 186                 PMD_DRV_LOG(DEBUG, "Invalid event message length : %u", msglen);
 187                 return;
 188         }
 189
 190         switch (pf_msg->event) {
 191         case VIRTCHNL_EVENT_RESET_IMPENDING:
 192                 PMD_DRV_LOG(DEBUG, "VIRTCHNL_EVENT_RESET_IMPENDING event");
 193                 start_vsi_reset_thread(dcf_hw, false, 0);
 194                 break;
 195         case VIRTCHNL_EVENT_LINK_CHANGE:
 196                 PMD_DRV_LOG(DEBUG, "VIRTCHNL_EVENT_LINK_CHANGE event");
 197                 break;
 198         case VIRTCHNL_EVENT_PF_DRIVER_CLOSE:
 199                 PMD_DRV_LOG(DEBUG, "VIRTCHNL_EVENT_PF_DRIVER_CLOSE event");
 200                 break;
 201         case VIRTCHNL_EVENT_DCF_VSI_MAP_UPDATE:
 202                 PMD_DRV_LOG(DEBUG, "VIRTCHNL_EVENT_DCF_VSI_MAP_UPDATE event : VF%u with VSI num %u",
 203                             pf_msg->event_data.vf_vsi_map.vf_id,
 204                             pf_msg->event_data.vf_vsi_map.vsi_id);
 205                 start_vsi_reset_thread(dcf_hw, true,
 206                                        pf_msg->event_data.vf_vsi_map.vf_id);
 207                 break;
 208         default:
 209                 PMD_DRV_LOG(ERR, "Unknown event received %u", pf_msg->event);
 210                 break;
 211         }
 212 }
 213
 214 static int
 215 ice_dcf_init_parent_hw(struct ice_hw *hw)
 216 {
 217         struct ice_aqc_get_phy_caps_data *pcaps;
 218         enum ice_status status;
 219
 220         status = ice_aq_get_fw_ver(hw, NULL);
 221         if (status)
 222                 return status;
 223
 224         status = ice_get_caps(hw);
 225         if (status)
 226                 return status;
 227
 228         hw->port_info = (struct ice_port_info *)
 229                         ice_malloc(hw, sizeof(*hw->port_info));
 230         if (!hw->port_info)
 231                 return ICE_ERR_NO_MEMORY;
 232
 233         /* set the back pointer to HW */
 234         hw->port_info->hw = hw;
 235
 236         /* Initialize port_info struct with switch configuration data */
 237         status = ice_get_initial_sw_cfg(hw);
 238         if (status)
 239                 goto err_unroll_alloc;
 240
 241         pcaps = (struct ice_aqc_get_phy_caps_data *)
 242                 ice_malloc(hw, sizeof(*pcaps));
 243         if (!pcaps) {
 244                 status = ICE_ERR_NO_MEMORY;
 245                 goto err_unroll_alloc;
 246         }
 247
 248         /* Initialize port_info struct with PHY capabilities */
 249         status = ice_aq_get_phy_caps(hw->port_info, false,
 250                                      ICE_AQC_REPORT_TOPO_CAP_MEDIA, pcaps, NULL);
 251         ice_free(hw, pcaps);
 252         if (status)
 253                 goto err_unroll_alloc;
 254
 255         /* Initialize port_info struct with link information */
 256         status = ice_aq_get_link_info(hw->port_info, false, NULL, NULL);
 257         if (status)
 258                 goto err_unroll_alloc;
 259
 260         status = ice_init_fltr_mgmt_struct(hw);
 261         if (status)
 262                 goto err_unroll_alloc;
 263
 264         status = ice_init_hw_tbls(hw);
 265         if (status)
 266                 goto err_unroll_fltr_mgmt_struct;
 267
 268         PMD_INIT_LOG(INFO,
 269                      "firmware %d.%d.%d api %d.%d.%d build 0x%08x",
 270                      hw->fw_maj_ver, hw->fw_min_ver, hw->fw_patch,
 271                      hw->api_maj_ver, hw->api_min_ver, hw->api_patch,
 272                      hw->fw_build);
 273
 274         return ICE_SUCCESS;
 275
 276 err_unroll_fltr_mgmt_struct:
 277         ice_cleanup_fltr_mgmt_struct(hw);
 278 err_unroll_alloc:
 279         ice_free(hw, hw->port_info);
 280         hw->port_info = NULL;
 281
 282         return status;
 283 }
 284
 285 static void ice_dcf_uninit_parent_hw(struct ice_hw *hw)
 286 {
 287         ice_cleanup_fltr_mgmt_struct(hw);
 288
 289         ice_free_seg(hw);
 290         ice_free_hw_tbls(hw);
 291
 292         ice_free(hw, hw->port_info);
 293         hw->port_info = NULL;
 294
 295         ice_clear_all_vsi_ctx(hw);
 296 }
 297
 298 static int
 299 ice_dcf_request_pkg_name(struct ice_hw *hw, char *pkg_name)
 300 {
 301         struct ice_dcf_adapter *dcf_adapter =
 302                         container_of(hw, struct ice_dcf_adapter, parent.hw);
 303         struct virtchnl_pkg_info pkg_info;
 304         struct dcf_virtchnl_cmd vc_cmd;
 305         uint64_t dsn;
 306
 307         vc_cmd.v_op = VIRTCHNL_OP_DCF_GET_PKG_INFO;
 308         vc_cmd.req_msglen = 0;
 309         vc_cmd.req_msg = NULL;
 310         vc_cmd.rsp_buflen = sizeof(pkg_info);
 311         vc_cmd.rsp_msgbuf = (uint8_t *)&pkg_info;
 312
 313         if (ice_dcf_execute_virtchnl_cmd(&dcf_adapter->real_hw, &vc_cmd))
 314                 goto pkg_file_direct;
 315
 316         rte_memcpy(&dsn, pkg_info.dsn, sizeof(dsn));
 317
 318         snprintf(pkg_name, ICE_MAX_PKG_FILENAME_SIZE,
 319                  ICE_PKG_FILE_SEARCH_PATH_UPDATES "ice-%016llx.pkg",
 320                  (unsigned long long)dsn);
 321         if (!ice_access(pkg_name, 0))
 322                 return 0;
 323
 324         snprintf(pkg_name, ICE_MAX_PKG_FILENAME_SIZE,
 325                  ICE_PKG_FILE_SEARCH_PATH_DEFAULT "ice-%016llx.pkg",
 326                  (unsigned long long)dsn);
 327         if (!ice_access(pkg_name, 0))
 328                 return 0;
 329
 330 pkg_file_direct:
 331         snprintf(pkg_name,
 332                  ICE_MAX_PKG_FILENAME_SIZE, "%s", ICE_PKG_FILE_UPDATES);
 333         if (!ice_access(pkg_name, 0))
 334                 return 0;
 335
 336         snprintf(pkg_name,
 337                  ICE_MAX_PKG_FILENAME_SIZE, "%s", ICE_PKG_FILE_DEFAULT);
 338         if (!ice_access(pkg_name, 0))
 339                 return 0;
 340
 341         return -1;
 342 }
 343
 344 static int
 345 ice_dcf_load_pkg(struct ice_hw *hw)
 346 {
 347         char pkg_name[ICE_MAX_PKG_FILENAME_SIZE];
 348         uint8_t *pkg_buf;
 349         uint32_t buf_len;
 350         struct stat st;
 351         FILE *fp;
 352         int err;
 353
 354         if (ice_dcf_request_pkg_name(hw, pkg_name)) {
 355                 PMD_INIT_LOG(ERR, "Failed to locate the package file");
 356                 return -ENOENT;
 357         }
 358
 359         PMD_INIT_LOG(DEBUG, "DDP package name: %s", pkg_name);
 360
 361         err = stat(pkg_name, &st);
 362         if (err) {
 363                 PMD_INIT_LOG(ERR, "Failed to get file status");
 364                 return err;
 365         }
 366
 367         buf_len = st.st_size;
 368         pkg_buf = rte_malloc(NULL, buf_len, 0);
 369         if (!pkg_buf) {
 370                 PMD_INIT_LOG(ERR, "failed to allocate buffer of size %u for package",
 371                              buf_len);
 372                 return -1;
 373         }
 374
 375         fp = fopen(pkg_name, "rb");
 376         if (!fp)  {
 377                 PMD_INIT_LOG(ERR, "failed to open file: %s", pkg_name);
 378                 err = -1;
 379                 goto ret;
 380         }
 381
 382         err = fread(pkg_buf, buf_len, 1, fp);
 383         fclose(fp);
 384         if (err != 1) {
 385                 PMD_INIT_LOG(ERR, "failed to read package data");
 386                 err = -1;
 387                 goto ret;
 388         }
 389
 390         err = ice_copy_and_init_pkg(hw, pkg_buf, buf_len);
 391         if (err)
 392                 PMD_INIT_LOG(ERR, "ice_copy_and_init_hw failed: %d", err);
 393
 394 ret:
 395         rte_free(pkg_buf);
 396         return err;
 397 }
 398
 399 int
 400 ice_dcf_init_parent_adapter(struct rte_eth_dev *eth_dev)
 401 {
 402         struct ice_dcf_adapter *adapter = eth_dev->data->dev_private;
 403         struct ice_adapter *parent_adapter = &adapter->parent;
 404         struct ice_hw *parent_hw = &parent_adapter->hw;
 405         struct ice_dcf_hw *hw = &adapter->real_hw;
 406         const struct rte_ether_addr *mac;
 407         int err;
 408
 409         parent_adapter->eth_dev = eth_dev;
 410         parent_adapter->pf.adapter = parent_adapter;
 411         parent_adapter->pf.dev_data = eth_dev->data;
 412         /* create a dummy main_vsi */
 413         parent_adapter->pf.main_vsi =
 414                 rte_zmalloc(NULL, sizeof(struct ice_vsi), 0);
 415         if (!parent_adapter->pf.main_vsi)
 416                 return -ENOMEM;
 417         parent_adapter->pf.main_vsi->adapter = parent_adapter;
 418         parent_adapter->pf.adapter_stopped = 1;
 419
 420         parent_hw->back = parent_adapter;
 421         parent_hw->mac_type = ICE_MAC_GENERIC;
 422         parent_hw->vendor_id = ICE_INTEL_VENDOR_ID;
 423
 424         ice_init_lock(&parent_hw->adminq.sq_lock);
 425         ice_init_lock(&parent_hw->adminq.rq_lock);
 426         parent_hw->aq_send_cmd_fn = ice_dcf_send_aq_cmd;
 427         parent_hw->aq_send_cmd_param = &adapter->real_hw;
 428         parent_hw->dcf_enabled = true;
 429
 430         err = ice_dcf_init_parent_hw(parent_hw);
 431         if (err) {
 432                 PMD_INIT_LOG(ERR, "failed to init the DCF parent hardware with error %d",
 433                              err);
 434                 return err;
 435         }
 436
 437         err = ice_dcf_load_pkg(parent_hw);
 438         if (err) {
 439                 PMD_INIT_LOG(ERR, "failed to load package with error %d",
 440                              err);
 441                 goto uninit_hw;
 442         }
 443         parent_adapter->active_pkg_type = ice_load_pkg_type(parent_hw);
 444
 445         parent_adapter->pf.main_vsi->idx = hw->num_vfs;
 446         ice_dcf_update_pf_vsi_map(parent_hw,
 447                         parent_adapter->pf.main_vsi->idx, hw->pf_vsi_id);
 448
 449         ice_dcf_update_vf_vsi_map(parent_hw, hw->num_vfs, hw->vf_vsi_map);
 450
 451         err = ice_flow_init(parent_adapter);
 452         if (err) {
 453                 PMD_INIT_LOG(ERR, "Failed to initialize flow");
 454                 goto uninit_hw;
 455         }
 456
 457         mac = (const struct rte_ether_addr *)hw->avf.mac.addr;
 458         if (rte_is_valid_assigned_ether_addr(mac))
 459                 rte_ether_addr_copy(mac, &parent_adapter->pf.dev_addr);
 460         else
 461                 rte_eth_random_addr(parent_adapter->pf.dev_addr.addr_bytes);
 462
 463         eth_dev->data->mac_addrs = &parent_adapter->pf.dev_addr;
 464
 465         return 0;
 466
 467 uninit_hw:
 468         ice_dcf_uninit_parent_hw(parent_hw);
 469         return err;
 470 }
 471
 472 void
 473 ice_dcf_uninit_parent_adapter(struct rte_eth_dev *eth_dev)
 474 {
 475         struct ice_dcf_adapter *adapter = eth_dev->data->dev_private;
 476         struct ice_adapter *parent_adapter = &adapter->parent;
 477         struct ice_hw *parent_hw = &parent_adapter->hw;
 478
 479         eth_dev->data->mac_addrs = NULL;
 480
 481         ice_flow_uninit(parent_adapter);
 482         ice_dcf_uninit_parent_hw(parent_hw);
 483 }