drivers/net/ice/ice_dcf.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2020 Intel Corporation
   3  */
   4
   5 #include <sys/queue.h>
   6 #include <stdio.h>
   7 #include <errno.h>
   8 #include <stdint.h>
   9 #include <string.h>
  10 #include <unistd.h>
  11 #include <stdarg.h>
  12 #include <inttypes.h>
  13 #include <rte_byteorder.h>
  14 #include <rte_common.h>
  15
  16 #include <rte_pci.h>
  17 #include <rte_atomic.h>
  18 #include <rte_eal.h>
  19 #include <rte_ether.h>
  20 #include <rte_ethdev_driver.h>
  21 #include <rte_ethdev_pci.h>
  22 #include <rte_malloc.h>
  23 #include <rte_memzone.h>
  24 #include <rte_dev.h>
  25
  26 #include "ice_dcf.h"
  27 #include "ice_rxtx.h"
  28
  29 #define ICE_DCF_AQ_LEN     32
  30 #define ICE_DCF_AQ_BUF_SZ  4096
  31
  32 #define ICE_DCF_ARQ_MAX_RETRIES 200
  33 #define ICE_DCF_ARQ_CHECK_TIME  2   /* msecs */
  34
  35 #define ICE_DCF_VF_RES_BUF_SZ   \
  36         (sizeof(struct virtchnl_vf_resource) +  \
  37                 IAVF_MAX_VF_VSI * sizeof(struct virtchnl_vsi_resource))
  38
  39 static __rte_always_inline int
  40 ice_dcf_send_cmd_req_no_irq(struct ice_dcf_hw *hw, enum virtchnl_ops op,
  41                             uint8_t *req_msg, uint16_t req_msglen)
  42 {
  43         return iavf_aq_send_msg_to_pf(&hw->avf, op, IAVF_SUCCESS,
  44                                       req_msg, req_msglen, NULL);
  45 }
  46
  47 static int
  48 ice_dcf_recv_cmd_rsp_no_irq(struct ice_dcf_hw *hw, enum virtchnl_ops op,
  49                             uint8_t *rsp_msgbuf, uint16_t rsp_buflen,
  50                             uint16_t *rsp_msglen)
  51 {
  52         struct iavf_arq_event_info event;
  53         enum virtchnl_ops v_op;
  54         int i = 0;
  55         int err;
  56
  57         event.buf_len = rsp_buflen;
  58         event.msg_buf = rsp_msgbuf;
  59
  60         do {
  61                 err = iavf_clean_arq_element(&hw->avf, &event, NULL);
  62                 if (err != IAVF_SUCCESS)
  63                         goto again;
  64
  65                 v_op = rte_le_to_cpu_32(event.desc.cookie_high);
  66                 if (v_op != op)
  67                         goto again;
  68
  69                 if (rsp_msglen != NULL)
  70                         *rsp_msglen = event.msg_len;
  71                 return rte_le_to_cpu_32(event.desc.cookie_low);
  72
  73 again:
  74                 rte_delay_ms(ICE_DCF_ARQ_CHECK_TIME);
  75         } while (i++ < ICE_DCF_ARQ_MAX_RETRIES);
  76
  77         return -EIO;
  78 }
  79
  80 static __rte_always_inline void
  81 ice_dcf_aq_cmd_clear(struct ice_dcf_hw *hw, struct dcf_virtchnl_cmd *cmd)
  82 {
  83         rte_spinlock_lock(&hw->vc_cmd_queue_lock);
  84
  85         TAILQ_REMOVE(&hw->vc_cmd_queue, cmd, next);
  86
  87         rte_spinlock_unlock(&hw->vc_cmd_queue_lock);
  88 }
  89
  90 static __rte_always_inline void
  91 ice_dcf_vc_cmd_set(struct ice_dcf_hw *hw, struct dcf_virtchnl_cmd *cmd)
  92 {
  93         cmd->v_ret = IAVF_ERR_NOT_READY;
  94         cmd->rsp_msglen = 0;
  95         cmd->pending = 1;
  96
  97         rte_spinlock_lock(&hw->vc_cmd_queue_lock);
  98
  99         TAILQ_INSERT_TAIL(&hw->vc_cmd_queue, cmd, next);
 100
 101         rte_spinlock_unlock(&hw->vc_cmd_queue_lock);
 102 }
 103
 104 static __rte_always_inline int
 105 ice_dcf_vc_cmd_send(struct ice_dcf_hw *hw, struct dcf_virtchnl_cmd *cmd)
 106 {
 107         return iavf_aq_send_msg_to_pf(&hw->avf,
 108                                       cmd->v_op, IAVF_SUCCESS,
 109                                       cmd->req_msg, cmd->req_msglen, NULL);
 110 }
 111
 112 static __rte_always_inline void
 113 ice_dcf_aq_cmd_handle(struct ice_dcf_hw *hw, struct iavf_arq_event_info *info)
 114 {
 115         struct dcf_virtchnl_cmd *cmd;
 116         enum virtchnl_ops v_op;
 117         enum iavf_status v_ret;
 118         uint16_t aq_op;
 119
 120         aq_op = rte_le_to_cpu_16(info->desc.opcode);
 121         if (unlikely(aq_op != iavf_aqc_opc_send_msg_to_vf)) {
 122                 PMD_DRV_LOG(ERR,
 123                             "Request %u is not supported yet", aq_op);
 124                 return;
 125         }
 126
 127         v_op = rte_le_to_cpu_32(info->desc.cookie_high);
 128         if (v_op == VIRTCHNL_OP_EVENT) {
 129                 if (hw->vc_event_msg_cb != NULL)
 130                         hw->vc_event_msg_cb(hw,
 131                                             info->msg_buf,
 132                                             info->msg_len);
 133                 return;
 134         }
 135
 136         v_ret = rte_le_to_cpu_32(info->desc.cookie_low);
 137
 138         rte_spinlock_lock(&hw->vc_cmd_queue_lock);
 139
 140         TAILQ_FOREACH(cmd, &hw->vc_cmd_queue, next) {
 141                 if (cmd->v_op == v_op && cmd->pending) {
 142                         cmd->v_ret = v_ret;
 143                         cmd->rsp_msglen = RTE_MIN(info->msg_len,
 144                                                   cmd->rsp_buflen);
 145                         if (likely(cmd->rsp_msglen != 0))
 146                                 rte_memcpy(cmd->rsp_msgbuf, info->msg_buf,
 147                                            cmd->rsp_msglen);
 148
 149                         /* prevent compiler reordering */
 150                         rte_compiler_barrier();
 151                         cmd->pending = 0;
 152                         break;
 153                 }
 154         }
 155
 156         rte_spinlock_unlock(&hw->vc_cmd_queue_lock);
 157 }
 158
 159 static void
 160 ice_dcf_handle_virtchnl_msg(struct ice_dcf_hw *hw)
 161 {
 162         struct iavf_arq_event_info info;
 163         uint16_t pending = 1;
 164         int ret;
 165
 166         info.buf_len = ICE_DCF_AQ_BUF_SZ;
 167         info.msg_buf = hw->arq_buf;
 168
 169         while (pending) {
 170                 ret = iavf_clean_arq_element(&hw->avf, &info, &pending);
 171                 if (ret != IAVF_SUCCESS)
 172                         break;
 173
 174                 ice_dcf_aq_cmd_handle(hw, &info);
 175         }
 176 }
 177
 178 static int
 179 ice_dcf_init_check_api_version(struct ice_dcf_hw *hw)
 180 {
 181 #define ICE_CPF_VIRTCHNL_VERSION_MAJOR_START    1
 182 #define ICE_CPF_VIRTCHNL_VERSION_MINOR_START    1
 183         struct virtchnl_version_info version, *pver;
 184         int err;
 185
 186         version.major = VIRTCHNL_VERSION_MAJOR;
 187         version.minor = VIRTCHNL_VERSION_MINOR;
 188         err = ice_dcf_send_cmd_req_no_irq(hw, VIRTCHNL_OP_VERSION,
 189                                           (uint8_t *)&version, sizeof(version));
 190         if (err) {
 191                 PMD_INIT_LOG(ERR, "Failed to send OP_VERSION");
 192                 return err;
 193         }
 194
 195         pver = &hw->virtchnl_version;
 196         err = ice_dcf_recv_cmd_rsp_no_irq(hw, VIRTCHNL_OP_VERSION,
 197                                           (uint8_t *)pver, sizeof(*pver), NULL);
 198         if (err) {
 199                 PMD_INIT_LOG(ERR, "Failed to get response of OP_VERSION");
 200                 return -1;
 201         }
 202
 203         PMD_INIT_LOG(DEBUG,
 204                      "Peer PF API version: %u.%u", pver->major, pver->minor);
 205
 206         if (pver->major < ICE_CPF_VIRTCHNL_VERSION_MAJOR_START ||
 207             (pver->major == ICE_CPF_VIRTCHNL_VERSION_MAJOR_START &&
 208              pver->minor < ICE_CPF_VIRTCHNL_VERSION_MINOR_START)) {
 209                 PMD_INIT_LOG(ERR,
 210                              "VIRTCHNL API version should not be lower than (%u.%u)",
 211                              ICE_CPF_VIRTCHNL_VERSION_MAJOR_START,
 212                              ICE_CPF_VIRTCHNL_VERSION_MAJOR_START);
 213                 return -1;
 214         } else if (pver->major > VIRTCHNL_VERSION_MAJOR ||
 215                    (pver->major == VIRTCHNL_VERSION_MAJOR &&
 216                     pver->minor > VIRTCHNL_VERSION_MINOR)) {
 217                 PMD_INIT_LOG(ERR,
 218                              "PF/VF API version mismatch:(%u.%u)-(%u.%u)",
 219                              pver->major, pver->minor,
 220                              VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR);
 221                 return -1;
 222         }
 223
 224         PMD_INIT_LOG(DEBUG, "Peer is supported PF host");
 225
 226         return 0;
 227 }
 228
 229 static int
 230 ice_dcf_get_vf_resource(struct ice_dcf_hw *hw)
 231 {
 232         uint32_t caps;
 233         int err, i;
 234
 235         caps = VIRTCHNL_VF_OFFLOAD_WB_ON_ITR | VIRTCHNL_VF_OFFLOAD_RX_POLLING |
 236                VIRTCHNL_VF_CAP_ADV_LINK_SPEED | VIRTCHNL_VF_CAP_DCF |
 237                VF_BASE_MODE_OFFLOADS | VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC;
 238
 239         err = ice_dcf_send_cmd_req_no_irq(hw, VIRTCHNL_OP_GET_VF_RESOURCES,
 240                                           (uint8_t *)&caps, sizeof(caps));
 241         if (err) {
 242                 PMD_DRV_LOG(ERR, "Failed to send msg OP_GET_VF_RESOURCE");
 243                 return err;
 244         }
 245
 246         err = ice_dcf_recv_cmd_rsp_no_irq(hw, VIRTCHNL_OP_GET_VF_RESOURCES,
 247                                           (uint8_t *)hw->vf_res,
 248                                           ICE_DCF_VF_RES_BUF_SZ, NULL);
 249         if (err) {
 250                 PMD_DRV_LOG(ERR, "Failed to get response of OP_GET_VF_RESOURCE");
 251                 return -1;
 252         }
 253
 254         iavf_vf_parse_hw_config(&hw->avf, hw->vf_res);
 255
 256         hw->vsi_res = NULL;
 257         for (i = 0; i < hw->vf_res->num_vsis; i++) {
 258                 if (hw->vf_res->vsi_res[i].vsi_type == VIRTCHNL_VSI_SRIOV)
 259                         hw->vsi_res = &hw->vf_res->vsi_res[i];
 260         }
 261
 262         if (!hw->vsi_res) {
 263                 PMD_DRV_LOG(ERR, "no LAN VSI found");
 264                 return -1;
 265         }
 266
 267         hw->vsi_id = hw->vsi_res->vsi_id;
 268         PMD_DRV_LOG(DEBUG, "VSI ID is %u", hw->vsi_id);
 269
 270         return 0;
 271 }
 272
 273 static int
 274 ice_dcf_get_vf_vsi_map(struct ice_dcf_hw *hw)
 275 {
 276         struct virtchnl_dcf_vsi_map *vsi_map;
 277         uint32_t valid_msg_len;
 278         uint16_t len;
 279         int err;
 280
 281         err = ice_dcf_send_cmd_req_no_irq(hw, VIRTCHNL_OP_DCF_GET_VSI_MAP,
 282                                           NULL, 0);
 283         if (err) {
 284                 PMD_DRV_LOG(ERR, "Failed to send msg OP_DCF_GET_VSI_MAP");
 285                 return err;
 286         }
 287
 288         err = ice_dcf_recv_cmd_rsp_no_irq(hw, VIRTCHNL_OP_DCF_GET_VSI_MAP,
 289                                           hw->arq_buf, ICE_DCF_AQ_BUF_SZ,
 290                                           &len);
 291         if (err) {
 292                 PMD_DRV_LOG(ERR, "Failed to get response of OP_DCF_GET_VSI_MAP");
 293                 return err;
 294         }
 295
 296         vsi_map = (struct virtchnl_dcf_vsi_map *)hw->arq_buf;
 297         valid_msg_len = (vsi_map->num_vfs - 1) * sizeof(vsi_map->vf_vsi[0]) +
 298                         sizeof(*vsi_map);
 299         if (len != valid_msg_len) {
 300                 PMD_DRV_LOG(ERR, "invalid vf vsi map response with length %u",
 301                             len);
 302                 return -EINVAL;
 303         }
 304
 305         if (hw->num_vfs != 0 && hw->num_vfs != vsi_map->num_vfs) {
 306                 PMD_DRV_LOG(ERR, "The number VSI map (%u) doesn't match the number of VFs (%u)",
 307                             vsi_map->num_vfs, hw->num_vfs);
 308                 return -EINVAL;
 309         }
 310
 311         len = vsi_map->num_vfs * sizeof(vsi_map->vf_vsi[0]);
 312
 313         if (!hw->vf_vsi_map) {
 314                 hw->vf_vsi_map = rte_zmalloc("vf_vsi_ctx", len, 0);
 315                 if (!hw->vf_vsi_map) {
 316                         PMD_DRV_LOG(ERR, "Failed to alloc memory for VSI context");
 317                         return -ENOMEM;
 318                 }
 319
 320                 hw->num_vfs = vsi_map->num_vfs;
 321         }
 322
 323         if (!memcmp(hw->vf_vsi_map, vsi_map->vf_vsi, len)) {
 324                 PMD_DRV_LOG(DEBUG, "VF VSI map doesn't change");
 325                 return 1;
 326         }
 327
 328         rte_memcpy(hw->vf_vsi_map, vsi_map->vf_vsi, len);
 329         return 0;
 330 }
 331
 332 static int
 333 ice_dcf_mode_disable(struct ice_dcf_hw *hw)
 334 {
 335         int err;
 336
 337         err = ice_dcf_send_cmd_req_no_irq(hw, VIRTCHNL_OP_DCF_DISABLE,
 338                                           NULL, 0);
 339         if (err) {
 340                 PMD_DRV_LOG(ERR, "Failed to send msg OP_DCF_DISABLE");
 341                 return err;
 342         }
 343
 344         err = ice_dcf_recv_cmd_rsp_no_irq(hw, VIRTCHNL_OP_DCF_DISABLE,
 345                                           hw->arq_buf, ICE_DCF_AQ_BUF_SZ, NULL);
 346         if (err) {
 347                 PMD_DRV_LOG(ERR,
 348                             "Failed to get response of OP_DCF_DISABLE %d",
 349                             err);
 350                 return -1;
 351         }
 352
 353         return 0;
 354 }
 355
 356 static int
 357 ice_dcf_check_reset_done(struct ice_dcf_hw *hw)
 358 {
 359 #define ICE_DCF_RESET_WAIT_CNT       50
 360         struct iavf_hw *avf = &hw->avf;
 361         int i, reset;
 362
 363         for (i = 0; i < ICE_DCF_RESET_WAIT_CNT; i++) {
 364                 reset = IAVF_READ_REG(avf, IAVF_VFGEN_RSTAT) &
 365                                         IAVF_VFGEN_RSTAT_VFR_STATE_MASK;
 366                 reset = reset >> IAVF_VFGEN_RSTAT_VFR_STATE_SHIFT;
 367
 368                 if (reset == VIRTCHNL_VFR_VFACTIVE ||
 369                     reset == VIRTCHNL_VFR_COMPLETED)
 370                         break;
 371
 372                 rte_delay_ms(20);
 373         }
 374
 375         if (i >= ICE_DCF_RESET_WAIT_CNT)
 376                 return -1;
 377
 378         return 0;
 379 }
 380
 381 static inline void
 382 ice_dcf_enable_irq0(struct ice_dcf_hw *hw)
 383 {
 384         struct iavf_hw *avf = &hw->avf;
 385
 386         /* Enable admin queue interrupt trigger */
 387         IAVF_WRITE_REG(avf, IAVF_VFINT_ICR0_ENA1,
 388                        IAVF_VFINT_ICR0_ENA1_ADMINQ_MASK);
 389         IAVF_WRITE_REG(avf, IAVF_VFINT_DYN_CTL01,
 390                        IAVF_VFINT_DYN_CTL01_INTENA_MASK |
 391                        IAVF_VFINT_DYN_CTL01_CLEARPBA_MASK |
 392                        IAVF_VFINT_DYN_CTL01_ITR_INDX_MASK);
 393
 394         IAVF_WRITE_FLUSH(avf);
 395 }
 396
 397 static inline void
 398 ice_dcf_disable_irq0(struct ice_dcf_hw *hw)
 399 {
 400         struct iavf_hw *avf = &hw->avf;
 401
 402         /* Disable all interrupt types */
 403         IAVF_WRITE_REG(avf, IAVF_VFINT_ICR0_ENA1, 0);
 404         IAVF_WRITE_REG(avf, IAVF_VFINT_DYN_CTL01,
 405                        IAVF_VFINT_DYN_CTL01_ITR_INDX_MASK);
 406
 407         IAVF_WRITE_FLUSH(avf);
 408 }
 409
 410 static void
 411 ice_dcf_dev_interrupt_handler(void *param)
 412 {
 413         struct ice_dcf_hw *hw = param;
 414
 415         ice_dcf_disable_irq0(hw);
 416
 417         ice_dcf_handle_virtchnl_msg(hw);
 418
 419         ice_dcf_enable_irq0(hw);
 420 }
 421
 422 int
 423 ice_dcf_execute_virtchnl_cmd(struct ice_dcf_hw *hw,
 424                              struct dcf_virtchnl_cmd *cmd)
 425 {
 426         int i = 0;
 427         int err;
 428
 429         if ((cmd->req_msg && !cmd->req_msglen) ||
 430             (!cmd->req_msg && cmd->req_msglen) ||
 431             (cmd->rsp_msgbuf && !cmd->rsp_buflen) ||
 432             (!cmd->rsp_msgbuf && cmd->rsp_buflen))
 433                 return -EINVAL;
 434
 435         rte_spinlock_lock(&hw->vc_cmd_send_lock);
 436         ice_dcf_vc_cmd_set(hw, cmd);
 437
 438         err = ice_dcf_vc_cmd_send(hw, cmd);
 439         if (err) {
 440                 PMD_DRV_LOG(ERR, "fail to send cmd %d", cmd->v_op);
 441                 goto ret;
 442         }
 443
 444         do {
 445                 if (!cmd->pending)
 446                         break;
 447
 448                 rte_delay_ms(ICE_DCF_ARQ_CHECK_TIME);
 449         } while (i++ < ICE_DCF_ARQ_MAX_RETRIES);
 450
 451         if (cmd->v_ret != IAVF_SUCCESS) {
 452                 err = -1;
 453                 PMD_DRV_LOG(ERR,
 454                             "No response (%d times) or return failure (%d) for cmd %d",
 455                             i, cmd->v_ret, cmd->v_op);
 456         }
 457
 458 ret:
 459         ice_dcf_aq_cmd_clear(hw, cmd);
 460         rte_spinlock_unlock(&hw->vc_cmd_send_lock);
 461         return err;
 462 }
 463
 464 int
 465 ice_dcf_send_aq_cmd(void *dcf_hw, struct ice_aq_desc *desc,
 466                     void *buf, uint16_t buf_size)
 467 {
 468         struct dcf_virtchnl_cmd desc_cmd, buff_cmd;
 469         struct ice_dcf_hw *hw = dcf_hw;
 470         int err = 0;
 471         int i = 0;
 472
 473         if ((buf && !buf_size) || (!buf && buf_size) ||
 474             buf_size > ICE_DCF_AQ_BUF_SZ)
 475                 return -EINVAL;
 476
 477         desc_cmd.v_op = VIRTCHNL_OP_DCF_CMD_DESC;
 478         desc_cmd.req_msglen = sizeof(*desc);
 479         desc_cmd.req_msg = (uint8_t *)desc;
 480         desc_cmd.rsp_buflen = sizeof(*desc);
 481         desc_cmd.rsp_msgbuf = (uint8_t *)desc;
 482
 483         if (buf == NULL)
 484                 return ice_dcf_execute_virtchnl_cmd(hw, &desc_cmd);
 485
 486         desc->flags |= rte_cpu_to_le_16(ICE_AQ_FLAG_BUF);
 487
 488         buff_cmd.v_op = VIRTCHNL_OP_DCF_CMD_BUFF;
 489         buff_cmd.req_msglen = buf_size;
 490         buff_cmd.req_msg = buf;
 491         buff_cmd.rsp_buflen = buf_size;
 492         buff_cmd.rsp_msgbuf = buf;
 493
 494         rte_spinlock_lock(&hw->vc_cmd_send_lock);
 495         ice_dcf_vc_cmd_set(hw, &desc_cmd);
 496         ice_dcf_vc_cmd_set(hw, &buff_cmd);
 497
 498         if (ice_dcf_vc_cmd_send(hw, &desc_cmd) ||
 499             ice_dcf_vc_cmd_send(hw, &buff_cmd)) {
 500                 err = -1;
 501                 PMD_DRV_LOG(ERR, "fail to send OP_DCF_CMD_DESC/BUFF");
 502                 goto ret;
 503         }
 504
 505         do {
 506                 if ((!desc_cmd.pending && !buff_cmd.pending) ||
 507                     (!desc_cmd.pending && desc_cmd.v_ret != IAVF_SUCCESS) ||
 508                     (!buff_cmd.pending && buff_cmd.v_ret != IAVF_SUCCESS))
 509                         break;
 510
 511                 rte_delay_ms(ICE_DCF_ARQ_CHECK_TIME);
 512         } while (i++ < ICE_DCF_ARQ_MAX_RETRIES);
 513
 514         if (desc_cmd.v_ret != IAVF_SUCCESS || buff_cmd.v_ret != IAVF_SUCCESS) {
 515                 err = -1;
 516                 PMD_DRV_LOG(ERR,
 517                             "No response (%d times) or return failure (desc: %d / buff: %d)",
 518                             i, desc_cmd.v_ret, buff_cmd.v_ret);
 519         }
 520
 521 ret:
 522         ice_dcf_aq_cmd_clear(hw, &desc_cmd);
 523         ice_dcf_aq_cmd_clear(hw, &buff_cmd);
 524         rte_spinlock_unlock(&hw->vc_cmd_send_lock);
 525
 526         return err;
 527 }
 528
 529 int
 530 ice_dcf_handle_vsi_update_event(struct ice_dcf_hw *hw)
 531 {
 532         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(hw->eth_dev);
 533         int err = 0;
 534
 535         rte_spinlock_lock(&hw->vc_cmd_send_lock);
 536
 537         rte_intr_disable(&pci_dev->intr_handle);
 538         ice_dcf_disable_irq0(hw);
 539
 540         if (ice_dcf_get_vf_resource(hw) || ice_dcf_get_vf_vsi_map(hw) < 0)
 541                 err = -1;
 542
 543         rte_intr_enable(&pci_dev->intr_handle);
 544         ice_dcf_enable_irq0(hw);
 545
 546         rte_spinlock_unlock(&hw->vc_cmd_send_lock);
 547
 548         return err;
 549 }
 550
 551 static int
 552 ice_dcf_get_supported_rxdid(struct ice_dcf_hw *hw)
 553 {
 554         int err;
 555
 556         err = ice_dcf_send_cmd_req_no_irq(hw,
 557                                           VIRTCHNL_OP_GET_SUPPORTED_RXDIDS,
 558                                           NULL, 0);
 559         if (err) {
 560                 PMD_INIT_LOG(ERR, "Failed to send OP_GET_SUPPORTED_RXDIDS");
 561                 return -1;
 562         }
 563
 564         err = ice_dcf_recv_cmd_rsp_no_irq(hw, VIRTCHNL_OP_GET_SUPPORTED_RXDIDS,
 565                                           (uint8_t *)&hw->supported_rxdid,
 566                                           sizeof(uint64_t), NULL);
 567         if (err) {
 568                 PMD_INIT_LOG(ERR, "Failed to get response of OP_GET_SUPPORTED_RXDIDS");
 569                 return -1;
 570         }
 571
 572         return 0;
 573 }
 574
 575 int
 576 ice_dcf_init_hw(struct rte_eth_dev *eth_dev, struct ice_dcf_hw *hw)
 577 {
 578         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
 579         int ret;
 580
 581         hw->avf.hw_addr = pci_dev->mem_resource[0].addr;
 582         hw->avf.back = hw;
 583
 584         hw->avf.bus.bus_id = pci_dev->addr.bus;
 585         hw->avf.bus.device = pci_dev->addr.devid;
 586         hw->avf.bus.func = pci_dev->addr.function;
 587
 588         hw->avf.device_id = pci_dev->id.device_id;
 589         hw->avf.vendor_id = pci_dev->id.vendor_id;
 590         hw->avf.subsystem_device_id = pci_dev->id.subsystem_device_id;
 591         hw->avf.subsystem_vendor_id = pci_dev->id.subsystem_vendor_id;
 592
 593         hw->avf.aq.num_arq_entries = ICE_DCF_AQ_LEN;
 594         hw->avf.aq.num_asq_entries = ICE_DCF_AQ_LEN;
 595         hw->avf.aq.arq_buf_size = ICE_DCF_AQ_BUF_SZ;
 596         hw->avf.aq.asq_buf_size = ICE_DCF_AQ_BUF_SZ;
 597
 598         rte_spinlock_init(&hw->vc_cmd_send_lock);
 599         rte_spinlock_init(&hw->vc_cmd_queue_lock);
 600         TAILQ_INIT(&hw->vc_cmd_queue);
 601
 602         hw->arq_buf = rte_zmalloc("arq_buf", ICE_DCF_AQ_BUF_SZ, 0);
 603         if (hw->arq_buf == NULL) {
 604                 PMD_INIT_LOG(ERR, "unable to allocate AdminQ buffer memory");
 605                 goto err;
 606         }
 607
 608         ret = iavf_set_mac_type(&hw->avf);
 609         if (ret) {
 610                 PMD_INIT_LOG(ERR, "set_mac_type failed: %d", ret);
 611                 goto err;
 612         }
 613
 614         ret = ice_dcf_check_reset_done(hw);
 615         if (ret) {
 616                 PMD_INIT_LOG(ERR, "VF is still resetting");
 617                 goto err;
 618         }
 619
 620         ret = iavf_init_adminq(&hw->avf);
 621         if (ret) {
 622                 PMD_INIT_LOG(ERR, "init_adminq failed: %d", ret);
 623                 goto err;
 624         }
 625
 626         if (ice_dcf_init_check_api_version(hw)) {
 627                 PMD_INIT_LOG(ERR, "check_api version failed");
 628                 goto err_api;
 629         }
 630
 631         hw->vf_res = rte_zmalloc("vf_res", ICE_DCF_VF_RES_BUF_SZ, 0);
 632         if (hw->vf_res == NULL) {
 633                 PMD_INIT_LOG(ERR, "unable to allocate vf_res memory");
 634                 goto err_api;
 635         }
 636
 637         if (ice_dcf_get_vf_resource(hw)) {
 638                 PMD_INIT_LOG(ERR, "Failed to get VF resource");
 639                 goto err_alloc;
 640         }
 641
 642         if (ice_dcf_get_vf_vsi_map(hw) < 0) {
 643                 PMD_INIT_LOG(ERR, "Failed to get VF VSI map");
 644                 ice_dcf_mode_disable(hw);
 645                 goto err_alloc;
 646         }
 647
 648         /* Allocate memory for RSS info */
 649         if (hw->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
 650                 hw->rss_key = rte_zmalloc(NULL,
 651                                           hw->vf_res->rss_key_size, 0);
 652                 if (!hw->rss_key) {
 653                         PMD_INIT_LOG(ERR, "unable to allocate rss_key memory");
 654                         goto err_alloc;
 655                 }
 656                 hw->rss_lut = rte_zmalloc("rss_lut",
 657                                           hw->vf_res->rss_lut_size, 0);
 658                 if (!hw->rss_lut) {
 659                         PMD_INIT_LOG(ERR, "unable to allocate rss_lut memory");
 660                         goto err_rss;
 661                 }
 662         }
 663
 664         if (hw->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC) {
 665                 if (ice_dcf_get_supported_rxdid(hw) != 0) {
 666                         PMD_INIT_LOG(ERR, "failed to do get supported rxdid");
 667                         goto err_rss;
 668                 }
 669         }
 670
 671         hw->eth_dev = eth_dev;
 672         rte_intr_callback_register(&pci_dev->intr_handle,
 673                                    ice_dcf_dev_interrupt_handler, hw);
 674         rte_intr_enable(&pci_dev->intr_handle);
 675         ice_dcf_enable_irq0(hw);
 676
 677         return 0;
 678
 679 err_rss:
 680         rte_free(hw->rss_key);
 681         rte_free(hw->rss_lut);
 682 err_alloc:
 683         rte_free(hw->vf_res);
 684 err_api:
 685         iavf_shutdown_adminq(&hw->avf);
 686 err:
 687         rte_free(hw->arq_buf);
 688
 689         return -1;
 690 }
 691
 692 void
 693 ice_dcf_uninit_hw(struct rte_eth_dev *eth_dev, struct ice_dcf_hw *hw)
 694 {
 695         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
 696         struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
 697
 698         ice_dcf_disable_irq0(hw);
 699         rte_intr_disable(intr_handle);
 700         rte_intr_callback_unregister(intr_handle,
 701                                      ice_dcf_dev_interrupt_handler, hw);
 702
 703         ice_dcf_mode_disable(hw);
 704         iavf_shutdown_adminq(&hw->avf);
 705
 706         rte_free(hw->arq_buf);
 707         rte_free(hw->vf_vsi_map);
 708         rte_free(hw->vf_res);
 709         rte_free(hw->rss_lut);
 710         rte_free(hw->rss_key);
 711 }
 712
 713 static int
 714 ice_dcf_configure_rss_key(struct ice_dcf_hw *hw)
 715 {
 716         struct virtchnl_rss_key *rss_key;
 717         struct dcf_virtchnl_cmd args;
 718         int len, err;
 719
 720         len = sizeof(*rss_key) + hw->vf_res->rss_key_size - 1;
 721         rss_key = rte_zmalloc("rss_key", len, 0);
 722         if (!rss_key)
 723                 return -ENOMEM;
 724
 725         rss_key->vsi_id = hw->vsi_res->vsi_id;
 726         rss_key->key_len = hw->vf_res->rss_key_size;
 727         rte_memcpy(rss_key->key, hw->rss_key, hw->vf_res->rss_key_size);
 728
 729         args.v_op = VIRTCHNL_OP_CONFIG_RSS_KEY;
 730         args.req_msglen = len;
 731         args.req_msg = (uint8_t *)rss_key;
 732         args.rsp_msglen = 0;
 733         args.rsp_buflen = 0;
 734         args.rsp_msgbuf = NULL;
 735         args.pending = 0;
 736
 737         err = ice_dcf_execute_virtchnl_cmd(hw, &args);
 738         if (err)
 739                 PMD_INIT_LOG(ERR, "Failed to execute OP_CONFIG_RSS_KEY");
 740
 741         rte_free(rss_key);
 742         return err;
 743 }
 744
 745 static int
 746 ice_dcf_configure_rss_lut(struct ice_dcf_hw *hw)
 747 {
 748         struct virtchnl_rss_lut *rss_lut;
 749         struct dcf_virtchnl_cmd args;
 750         int len, err;
 751
 752         len = sizeof(*rss_lut) + hw->vf_res->rss_lut_size - 1;
 753         rss_lut = rte_zmalloc("rss_lut", len, 0);
 754         if (!rss_lut)
 755                 return -ENOMEM;
 756
 757         rss_lut->vsi_id = hw->vsi_res->vsi_id;
 758         rss_lut->lut_entries = hw->vf_res->rss_lut_size;
 759         rte_memcpy(rss_lut->lut, hw->rss_lut, hw->vf_res->rss_lut_size);
 760
 761         args.v_op = VIRTCHNL_OP_CONFIG_RSS_LUT;
 762         args.req_msglen = len;
 763         args.req_msg = (uint8_t *)rss_lut;
 764         args.rsp_msglen = 0;
 765         args.rsp_buflen = 0;
 766         args.rsp_msgbuf = NULL;
 767         args.pending = 0;
 768
 769         err = ice_dcf_execute_virtchnl_cmd(hw, &args);
 770         if (err)
 771                 PMD_INIT_LOG(ERR, "Failed to execute OP_CONFIG_RSS_LUT");
 772
 773         rte_free(rss_lut);
 774         return err;
 775 }
 776
 777 int
 778 ice_dcf_init_rss(struct ice_dcf_hw *hw)
 779 {
 780         struct rte_eth_dev *dev = hw->eth_dev;
 781         struct rte_eth_rss_conf *rss_conf;
 782         uint8_t i, j, nb_q;
 783         int ret;
 784
 785         rss_conf = &dev->data->dev_conf.rx_adv_conf.rss_conf;
 786         nb_q = dev->data->nb_rx_queues;
 787
 788         if (!(hw->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_RSS_PF)) {
 789                 PMD_DRV_LOG(DEBUG, "RSS is not supported");
 790                 return -ENOTSUP;
 791         }
 792         if (dev->data->dev_conf.rxmode.mq_mode != ETH_MQ_RX_RSS) {
 793                 PMD_DRV_LOG(WARNING, "RSS is enabled by PF by default");
 794                 /* set all lut items to default queue */
 795                 memset(hw->rss_lut, 0, hw->vf_res->rss_lut_size);
 796                 return ice_dcf_configure_rss_lut(hw);
 797         }
 798
 799         /* In IAVF, RSS enablement is set by PF driver. It is not supported
 800          * to set based on rss_conf->rss_hf.
 801          */
 802
 803         /* configure RSS key */
 804         if (!rss_conf->rss_key)
 805                 /* Calculate the default hash key */
 806                 for (i = 0; i < hw->vf_res->rss_key_size; i++)
 807                         hw->rss_key[i] = (uint8_t)rte_rand();
 808         else
 809                 rte_memcpy(hw->rss_key, rss_conf->rss_key,
 810                            RTE_MIN(rss_conf->rss_key_len,
 811                                    hw->vf_res->rss_key_size));
 812
 813         /* init RSS LUT table */
 814         for (i = 0, j = 0; i < hw->vf_res->rss_lut_size; i++, j++) {
 815                 if (j >= nb_q)
 816                         j = 0;
 817                 hw->rss_lut[i] = j;
 818         }
 819         /* send virtchnnl ops to configure rss*/
 820         ret = ice_dcf_configure_rss_lut(hw);
 821         if (ret)
 822                 return ret;
 823         ret = ice_dcf_configure_rss_key(hw);
 824         if (ret)
 825                 return ret;
 826
 827         return 0;
 828 }
 829
 830 #define IAVF_RXDID_LEGACY_1 1
 831 #define IAVF_RXDID_COMMS_GENERIC 16
 832
 833 int
 834 ice_dcf_configure_queues(struct ice_dcf_hw *hw)
 835 {
 836         struct ice_rx_queue **rxq =
 837                 (struct ice_rx_queue **)hw->eth_dev->data->rx_queues;
 838         struct ice_tx_queue **txq =
 839                 (struct ice_tx_queue **)hw->eth_dev->data->tx_queues;
 840         struct virtchnl_vsi_queue_config_info *vc_config;
 841         struct virtchnl_queue_pair_info *vc_qp;
 842         struct dcf_virtchnl_cmd args;
 843         uint16_t i, size;
 844         int err;
 845
 846         size = sizeof(*vc_config) +
 847                sizeof(vc_config->qpair[0]) * hw->num_queue_pairs;
 848         vc_config = rte_zmalloc("cfg_queue", size, 0);
 849         if (!vc_config)
 850                 return -ENOMEM;
 851
 852         vc_config->vsi_id = hw->vsi_res->vsi_id;
 853         vc_config->num_queue_pairs = hw->num_queue_pairs;
 854
 855         for (i = 0, vc_qp = vc_config->qpair;
 856              i < hw->num_queue_pairs;
 857              i++, vc_qp++) {
 858                 vc_qp->txq.vsi_id = hw->vsi_res->vsi_id;
 859                 vc_qp->txq.queue_id = i;
 860                 if (i < hw->eth_dev->data->nb_tx_queues) {
 861                         vc_qp->txq.ring_len = txq[i]->nb_tx_desc;
 862                         vc_qp->txq.dma_ring_addr = txq[i]->tx_ring_dma;
 863                 }
 864                 vc_qp->rxq.vsi_id = hw->vsi_res->vsi_id;
 865                 vc_qp->rxq.queue_id = i;
 866                 vc_qp->rxq.max_pkt_size = rxq[i]->max_pkt_len;
 867
 868                 if (i >= hw->eth_dev->data->nb_rx_queues)
 869                         continue;
 870
 871                 vc_qp->rxq.ring_len = rxq[i]->nb_rx_desc;
 872                 vc_qp->rxq.dma_ring_addr = rxq[i]->rx_ring_dma;
 873                 vc_qp->rxq.databuffer_size = rxq[i]->rx_buf_len;
 874
 875                 if (hw->vf_res->vf_cap_flags &
 876                     VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC &&
 877                     hw->supported_rxdid &
 878                     BIT(IAVF_RXDID_COMMS_GENERIC)) {
 879                         vc_qp->rxq.rxdid = IAVF_RXDID_COMMS_GENERIC;
 880                         PMD_DRV_LOG(NOTICE, "request RXDID == %d in "
 881                                     "Queue[%d]", vc_qp->rxq.rxdid, i);
 882                 } else {
 883                         PMD_DRV_LOG(ERR, "RXDID 16 is not supported");
 884                         return -EINVAL;
 885                 }
 886         }
 887
 888         memset(&args, 0, sizeof(args));
 889         args.v_op = VIRTCHNL_OP_CONFIG_VSI_QUEUES;
 890         args.req_msg = (uint8_t *)vc_config;
 891         args.req_msglen = size;
 892
 893         err = ice_dcf_execute_virtchnl_cmd(hw, &args);
 894         if (err)
 895                 PMD_DRV_LOG(ERR, "Failed to execute command of"
 896                             " VIRTCHNL_OP_CONFIG_VSI_QUEUES");
 897
 898         rte_free(vc_config);
 899         return err;
 900 }
 901
 902 int
 903 ice_dcf_config_irq_map(struct ice_dcf_hw *hw)
 904 {
 905         struct virtchnl_irq_map_info *map_info;
 906         struct virtchnl_vector_map *vecmap;
 907         struct dcf_virtchnl_cmd args;
 908         int len, i, err;
 909
 910         len = sizeof(struct virtchnl_irq_map_info) +
 911               sizeof(struct virtchnl_vector_map) * hw->nb_msix;
 912
 913         map_info = rte_zmalloc("map_info", len, 0);
 914         if (!map_info)
 915                 return -ENOMEM;
 916
 917         map_info->num_vectors = hw->nb_msix;
 918         for (i = 0; i < hw->nb_msix; i++) {
 919                 vecmap = &map_info->vecmap[i];
 920                 vecmap->vsi_id = hw->vsi_res->vsi_id;
 921                 vecmap->rxitr_idx = 0;
 922                 vecmap->vector_id = hw->msix_base + i;
 923                 vecmap->txq_map = 0;
 924                 vecmap->rxq_map = hw->rxq_map[hw->msix_base + i];
 925         }
 926
 927         memset(&args, 0, sizeof(args));
 928         args.v_op = VIRTCHNL_OP_CONFIG_IRQ_MAP;
 929         args.req_msg = (u8 *)map_info;
 930         args.req_msglen = len;
 931
 932         err = ice_dcf_execute_virtchnl_cmd(hw, &args);
 933         if (err)
 934                 PMD_DRV_LOG(ERR, "fail to execute command OP_CONFIG_IRQ_MAP");
 935
 936         rte_free(map_info);
 937         return err;
 938 }
 939
 940 int
 941 ice_dcf_switch_queue(struct ice_dcf_hw *hw, uint16_t qid, bool rx, bool on)
 942 {
 943         struct virtchnl_queue_select queue_select;
 944         struct dcf_virtchnl_cmd args;
 945         int err;
 946
 947         memset(&queue_select, 0, sizeof(queue_select));
 948         queue_select.vsi_id = hw->vsi_res->vsi_id;
 949         if (rx)
 950                 queue_select.rx_queues |= 1 << qid;
 951         else
 952                 queue_select.tx_queues |= 1 << qid;
 953
 954         memset(&args, 0, sizeof(args));
 955         if (on)
 956                 args.v_op = VIRTCHNL_OP_ENABLE_QUEUES;
 957         else
 958                 args.v_op = VIRTCHNL_OP_DISABLE_QUEUES;
 959
 960         args.req_msg = (u8 *)&queue_select;
 961         args.req_msglen = sizeof(queue_select);
 962
 963         err = ice_dcf_execute_virtchnl_cmd(hw, &args);
 964         if (err)
 965                 PMD_DRV_LOG(ERR, "Failed to execute command of %s",
 966                             on ? "OP_ENABLE_QUEUES" : "OP_DISABLE_QUEUES");
 967
 968         return err;
 969 }
 970
 971 int
 972 ice_dcf_disable_queues(struct ice_dcf_hw *hw)
 973 {
 974         struct virtchnl_queue_select queue_select;
 975         struct dcf_virtchnl_cmd args;
 976         int err;
 977
 978         memset(&queue_select, 0, sizeof(queue_select));
 979         queue_select.vsi_id = hw->vsi_res->vsi_id;
 980
 981         queue_select.rx_queues = BIT(hw->eth_dev->data->nb_rx_queues) - 1;
 982         queue_select.tx_queues = BIT(hw->eth_dev->data->nb_tx_queues) - 1;
 983
 984         memset(&args, 0, sizeof(args));
 985         args.v_op = VIRTCHNL_OP_DISABLE_QUEUES;
 986         args.req_msg = (u8 *)&queue_select;
 987         args.req_msglen = sizeof(queue_select);
 988
 989         err = ice_dcf_execute_virtchnl_cmd(hw, &args);
 990         if (err)
 991                 PMD_DRV_LOG(ERR,
 992                             "Failed to execute command of OP_DISABLE_QUEUES");
 993
 994         return err;
 995 }
 996
 997 int
 998 ice_dcf_query_stats(struct ice_dcf_hw *hw,
 999                                    struct virtchnl_eth_stats *pstats)
1000 {
1001         struct virtchnl_queue_select q_stats;
1002         struct dcf_virtchnl_cmd args;
1003         int err;
1004
1005         memset(&q_stats, 0, sizeof(q_stats));
1006         q_stats.vsi_id = hw->vsi_res->vsi_id;
1007
1008         args.v_op = VIRTCHNL_OP_GET_STATS;
1009         args.req_msg = (uint8_t *)&q_stats;
1010         args.req_msglen = sizeof(q_stats);
1011         args.rsp_msglen = sizeof(*pstats);
1012         args.rsp_msgbuf = (uint8_t *)pstats;
1013         args.rsp_buflen = sizeof(*pstats);
1014
1015         err = ice_dcf_execute_virtchnl_cmd(hw, &args);
1016         if (err) {
1017                 PMD_DRV_LOG(ERR, "fail to execute command OP_GET_STATS");
1018                 return err;
1019         }
1020
1021         return 0;
1022 }