drivers/net/hns3/hns3_ethdev_vf.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018-2019 Hisilicon Limited.
   3  */
   4
   5 #include <linux/pci_regs.h>
   6 #include <rte_alarm.h>
   7 #include <ethdev_pci.h>
   8 #include <rte_io.h>
   9 #include <rte_pci.h>
  10 #include <rte_vfio.h>
  11
  12 #include "hns3_ethdev.h"
  13 #include "hns3_logs.h"
  14 #include "hns3_rxtx.h"
  15 #include "hns3_regs.h"
  16 #include "hns3_intr.h"
  17 #include "hns3_dcb.h"
  18 #include "hns3_mp.h"
  19
  20 #define HNS3VF_KEEP_ALIVE_INTERVAL      2000000 /* us */
  21 #define HNS3VF_SERVICE_INTERVAL         1000000 /* us */
  22
  23 #define HNS3VF_RESET_WAIT_MS    20
  24 #define HNS3VF_RESET_WAIT_CNT   2000
  25
  26 /* Reset related Registers */
  27 #define HNS3_GLOBAL_RESET_BIT           0
  28 #define HNS3_CORE_RESET_BIT             1
  29 #define HNS3_IMP_RESET_BIT              2
  30 #define HNS3_FUN_RST_ING_B              0
  31
  32 enum hns3vf_evt_cause {
  33         HNS3VF_VECTOR0_EVENT_RST,
  34         HNS3VF_VECTOR0_EVENT_MBX,
  35         HNS3VF_VECTOR0_EVENT_OTHER,
  36 };
  37
  38 static enum hns3_reset_level hns3vf_get_reset_level(struct hns3_hw *hw,
  39                                                     uint64_t *levels);
  40 static int hns3vf_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
  41 static int hns3vf_dev_configure_vlan(struct rte_eth_dev *dev);
  42
  43 static int hns3vf_add_mc_mac_addr(struct hns3_hw *hw,
  44                                   struct rte_ether_addr *mac_addr);
  45 static int hns3vf_remove_mc_mac_addr(struct hns3_hw *hw,
  46                                      struct rte_ether_addr *mac_addr);
  47 /* set PCI bus mastering */
  48 static int
  49 hns3vf_set_bus_master(const struct rte_pci_device *device, bool op)
  50 {
  51         uint16_t reg;
  52         int ret;
  53
  54         ret = rte_pci_read_config(device, &reg, sizeof(reg), PCI_COMMAND);
  55         if (ret < 0) {
  56                 PMD_INIT_LOG(ERR, "Failed to read PCI offset 0x%x",
  57                              PCI_COMMAND);
  58                 return ret;
  59         }
  60
  61         if (op)
  62                 /* set the master bit */
  63                 reg |= PCI_COMMAND_MASTER;
  64         else
  65                 reg &= ~(PCI_COMMAND_MASTER);
  66
  67         return rte_pci_write_config(device, &reg, sizeof(reg), PCI_COMMAND);
  68 }
  69
  70 /**
  71  * hns3vf_find_pci_capability - lookup a capability in the PCI capability list
  72  * @cap: the capability
  73  *
  74  * Return the address of the given capability within the PCI capability list.
  75  */
  76 static int
  77 hns3vf_find_pci_capability(const struct rte_pci_device *device, int cap)
  78 {
  79 #define MAX_PCIE_CAPABILITY 48
  80         uint16_t status;
  81         uint8_t pos;
  82         uint8_t id;
  83         int ttl;
  84         int ret;
  85
  86         ret = rte_pci_read_config(device, &status, sizeof(status), PCI_STATUS);
  87         if (ret < 0) {
  88                 PMD_INIT_LOG(ERR, "Failed to read PCI offset 0x%x", PCI_STATUS);
  89                 return 0;
  90         }
  91
  92         if (!(status & PCI_STATUS_CAP_LIST))
  93                 return 0;
  94
  95         ttl = MAX_PCIE_CAPABILITY;
  96         ret = rte_pci_read_config(device, &pos, sizeof(pos),
  97                                   PCI_CAPABILITY_LIST);
  98         if (ret < 0) {
  99                 PMD_INIT_LOG(ERR, "Failed to read PCI offset 0x%x",
 100                              PCI_CAPABILITY_LIST);
 101                 return 0;
 102         }
 103
 104         while (ttl-- && pos >= PCI_STD_HEADER_SIZEOF) {
 105                 ret = rte_pci_read_config(device, &id, sizeof(id),
 106                                           (pos + PCI_CAP_LIST_ID));
 107                 if (ret < 0) {
 108                         PMD_INIT_LOG(ERR, "Failed to read PCI offset 0x%x",
 109                                      (pos + PCI_CAP_LIST_ID));
 110                         break;
 111                 }
 112
 113                 if (id == 0xFF)
 114                         break;
 115
 116                 if (id == cap)
 117                         return (int)pos;
 118
 119                 ret = rte_pci_read_config(device, &pos, sizeof(pos),
 120                                           (pos + PCI_CAP_LIST_NEXT));
 121                 if (ret < 0) {
 122                         PMD_INIT_LOG(ERR, "Failed to read PCI offset 0x%x",
 123                                      (pos + PCI_CAP_LIST_NEXT));
 124                         break;
 125                 }
 126         }
 127         return 0;
 128 }
 129
 130 static int
 131 hns3vf_enable_msix(const struct rte_pci_device *device, bool op)
 132 {
 133         uint16_t control;
 134         int pos;
 135         int ret;
 136
 137         pos = hns3vf_find_pci_capability(device, PCI_CAP_ID_MSIX);
 138         if (pos) {
 139                 ret = rte_pci_read_config(device, &control, sizeof(control),
 140                                     (pos + PCI_MSIX_FLAGS));
 141                 if (ret < 0) {
 142                         PMD_INIT_LOG(ERR, "Failed to read PCI offset 0x%x",
 143                                      (pos + PCI_MSIX_FLAGS));
 144                         return -ENXIO;
 145                 }
 146
 147                 if (op)
 148                         control |= PCI_MSIX_FLAGS_ENABLE;
 149                 else
 150                         control &= ~PCI_MSIX_FLAGS_ENABLE;
 151                 ret = rte_pci_write_config(device, &control, sizeof(control),
 152                                           (pos + PCI_MSIX_FLAGS));
 153                 if (ret < 0) {
 154                         PMD_INIT_LOG(ERR, "failed to write PCI offset 0x%x",
 155                                     (pos + PCI_MSIX_FLAGS));
 156                 }
 157                 return 0;
 158         }
 159         return -ENXIO;
 160 }
 161
 162 static int
 163 hns3vf_add_uc_mac_addr(struct hns3_hw *hw, struct rte_ether_addr *mac_addr)
 164 {
 165         /* mac address was checked by upper level interface */
 166         char mac_str[RTE_ETHER_ADDR_FMT_SIZE];
 167         int ret;
 168
 169         ret = hns3_send_mbx_msg(hw, HNS3_MBX_SET_UNICAST,
 170                                 HNS3_MBX_MAC_VLAN_UC_ADD, mac_addr->addr_bytes,
 171                                 RTE_ETHER_ADDR_LEN, false, NULL, 0);
 172         if (ret) {
 173                 hns3_ether_format_addr(mac_str, RTE_ETHER_ADDR_FMT_SIZE,
 174                                       mac_addr);
 175                 hns3_err(hw, "failed to add uc mac addr(%s), ret = %d",
 176                          mac_str, ret);
 177         }
 178         return ret;
 179 }
 180
 181 static int
 182 hns3vf_remove_uc_mac_addr(struct hns3_hw *hw, struct rte_ether_addr *mac_addr)
 183 {
 184         /* mac address was checked by upper level interface */
 185         char mac_str[RTE_ETHER_ADDR_FMT_SIZE];
 186         int ret;
 187
 188         ret = hns3_send_mbx_msg(hw, HNS3_MBX_SET_UNICAST,
 189                                 HNS3_MBX_MAC_VLAN_UC_REMOVE,
 190                                 mac_addr->addr_bytes, RTE_ETHER_ADDR_LEN,
 191                                 false, NULL, 0);
 192         if (ret) {
 193                 hns3_ether_format_addr(mac_str, RTE_ETHER_ADDR_FMT_SIZE,
 194                                       mac_addr);
 195                 hns3_err(hw, "failed to add uc mac addr(%s), ret = %d",
 196                          mac_str, ret);
 197         }
 198         return ret;
 199 }
 200
 201 static int
 202 hns3vf_add_mc_addr_common(struct hns3_hw *hw, struct rte_ether_addr *mac_addr)
 203 {
 204         char mac_str[RTE_ETHER_ADDR_FMT_SIZE];
 205         struct rte_ether_addr *addr;
 206         int ret;
 207         int i;
 208
 209         for (i = 0; i < hw->mc_addrs_num; i++) {
 210                 addr = &hw->mc_addrs[i];
 211                 /* Check if there are duplicate addresses */
 212                 if (rte_is_same_ether_addr(addr, mac_addr)) {
 213                         hns3_ether_format_addr(mac_str, RTE_ETHER_ADDR_FMT_SIZE,
 214                                               addr);
 215                         hns3_err(hw, "failed to add mc mac addr, same addrs"
 216                                  "(%s) is added by the set_mc_mac_addr_list "
 217                                  "API", mac_str);
 218                         return -EINVAL;
 219                 }
 220         }
 221
 222         ret = hns3vf_add_mc_mac_addr(hw, mac_addr);
 223         if (ret) {
 224                 hns3_ether_format_addr(mac_str, RTE_ETHER_ADDR_FMT_SIZE,
 225                                       mac_addr);
 226                 hns3_err(hw, "failed to add mc mac addr(%s), ret = %d",
 227                          mac_str, ret);
 228         }
 229         return ret;
 230 }
 231
 232 static int
 233 hns3vf_add_mac_addr(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr,
 234                     __rte_unused uint32_t idx,
 235                     __rte_unused uint32_t pool)
 236 {
 237         struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 238         char mac_str[RTE_ETHER_ADDR_FMT_SIZE];
 239         int ret;
 240
 241         rte_spinlock_lock(&hw->lock);
 242
 243         /*
 244          * In hns3 network engine adding UC and MC mac address with different
 245          * commands with firmware. We need to determine whether the input
 246          * address is a UC or a MC address to call different commands.
 247          * By the way, it is recommended calling the API function named
 248          * rte_eth_dev_set_mc_addr_list to set the MC mac address, because
 249          * using the rte_eth_dev_mac_addr_add API function to set MC mac address
 250          * may affect the specifications of UC mac addresses.
 251          */
 252         if (rte_is_multicast_ether_addr(mac_addr))
 253                 ret = hns3vf_add_mc_addr_common(hw, mac_addr);
 254         else
 255                 ret = hns3vf_add_uc_mac_addr(hw, mac_addr);
 256
 257         rte_spinlock_unlock(&hw->lock);
 258         if (ret) {
 259                 hns3_ether_format_addr(mac_str, RTE_ETHER_ADDR_FMT_SIZE,
 260                                       mac_addr);
 261                 hns3_err(hw, "failed to add mac addr(%s), ret = %d", mac_str,
 262                          ret);
 263         }
 264
 265         return ret;
 266 }
 267
 268 static void
 269 hns3vf_remove_mac_addr(struct rte_eth_dev *dev, uint32_t idx)
 270 {
 271         struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 272         /* index will be checked by upper level rte interface */
 273         struct rte_ether_addr *mac_addr = &dev->data->mac_addrs[idx];
 274         char mac_str[RTE_ETHER_ADDR_FMT_SIZE];
 275         int ret;
 276
 277         rte_spinlock_lock(&hw->lock);
 278
 279         if (rte_is_multicast_ether_addr(mac_addr))
 280                 ret = hns3vf_remove_mc_mac_addr(hw, mac_addr);
 281         else
 282                 ret = hns3vf_remove_uc_mac_addr(hw, mac_addr);
 283
 284         rte_spinlock_unlock(&hw->lock);
 285         if (ret) {
 286                 hns3_ether_format_addr(mac_str, RTE_ETHER_ADDR_FMT_SIZE,
 287                                       mac_addr);
 288                 hns3_err(hw, "failed to remove mac addr(%s), ret = %d",
 289                          mac_str, ret);
 290         }
 291 }
 292
 293 static int
 294 hns3vf_set_default_mac_addr(struct rte_eth_dev *dev,
 295                             struct rte_ether_addr *mac_addr)
 296 {
 297 #define HNS3_TWO_ETHER_ADDR_LEN (RTE_ETHER_ADDR_LEN * 2)
 298         struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 299         struct rte_ether_addr *old_addr;
 300         uint8_t addr_bytes[HNS3_TWO_ETHER_ADDR_LEN]; /* for 2 MAC addresses */
 301         char mac_str[RTE_ETHER_ADDR_FMT_SIZE];
 302         int ret;
 303
 304         /*
 305          * It has been guaranteed that input parameter named mac_addr is valid
 306          * address in the rte layer of DPDK framework.
 307          */
 308         old_addr = (struct rte_ether_addr *)hw->mac.mac_addr;
 309         rte_spinlock_lock(&hw->lock);
 310         memcpy(addr_bytes, mac_addr->addr_bytes, RTE_ETHER_ADDR_LEN);
 311         memcpy(&addr_bytes[RTE_ETHER_ADDR_LEN], old_addr->addr_bytes,
 312                RTE_ETHER_ADDR_LEN);
 313
 314         ret = hns3_send_mbx_msg(hw, HNS3_MBX_SET_UNICAST,
 315                                 HNS3_MBX_MAC_VLAN_UC_MODIFY, addr_bytes,
 316                                 HNS3_TWO_ETHER_ADDR_LEN, true, NULL, 0);
 317         if (ret) {
 318                 /*
 319                  * The hns3 VF PMD driver depends on the hns3 PF kernel ethdev
 320                  * driver. When user has configured a MAC address for VF device
 321                  * by "ip link set ..." command based on the PF device, the hns3
 322                  * PF kernel ethdev driver does not allow VF driver to request
 323                  * reconfiguring a different default MAC address, and return
 324                  * -EPREM to VF driver through mailbox.
 325                  */
 326                 if (ret == -EPERM) {
 327                         hns3_ether_format_addr(mac_str, RTE_ETHER_ADDR_FMT_SIZE,
 328                                               old_addr);
 329                         hns3_warn(hw, "Has permanet mac addr(%s) for vf",
 330                                   mac_str);
 331                 } else {
 332                         hns3_ether_format_addr(mac_str, RTE_ETHER_ADDR_FMT_SIZE,
 333                                               mac_addr);
 334                         hns3_err(hw, "Failed to set mac addr(%s) for vf: %d",
 335                                  mac_str, ret);
 336                 }
 337         }
 338
 339         rte_ether_addr_copy(mac_addr,
 340                             (struct rte_ether_addr *)hw->mac.mac_addr);
 341         rte_spinlock_unlock(&hw->lock);
 342
 343         return ret;
 344 }
 345
 346 static int
 347 hns3vf_configure_mac_addr(struct hns3_adapter *hns, bool del)
 348 {
 349         struct hns3_hw *hw = &hns->hw;
 350         struct rte_ether_addr *addr;
 351         char mac_str[RTE_ETHER_ADDR_FMT_SIZE];
 352         int err = 0;
 353         int ret;
 354         int i;
 355
 356         for (i = 0; i < HNS3_VF_UC_MACADDR_NUM; i++) {
 357                 addr = &hw->data->mac_addrs[i];
 358                 if (rte_is_zero_ether_addr(addr))
 359                         continue;
 360                 if (rte_is_multicast_ether_addr(addr))
 361                         ret = del ? hns3vf_remove_mc_mac_addr(hw, addr) :
 362                               hns3vf_add_mc_mac_addr(hw, addr);
 363                 else
 364                         ret = del ? hns3vf_remove_uc_mac_addr(hw, addr) :
 365                               hns3vf_add_uc_mac_addr(hw, addr);
 366
 367                 if (ret) {
 368                         err = ret;
 369                         hns3_ether_format_addr(mac_str, RTE_ETHER_ADDR_FMT_SIZE,
 370                                               addr);
 371                         hns3_err(hw, "failed to %s mac addr(%s) index:%d "
 372                                  "ret = %d.", del ? "remove" : "restore",
 373                                  mac_str, i, ret);
 374                 }
 375         }
 376         return err;
 377 }
 378
 379 static int
 380 hns3vf_add_mc_mac_addr(struct hns3_hw *hw,
 381                        struct rte_ether_addr *mac_addr)
 382 {
 383         char mac_str[RTE_ETHER_ADDR_FMT_SIZE];
 384         int ret;
 385
 386         ret = hns3_send_mbx_msg(hw, HNS3_MBX_SET_MULTICAST,
 387                                 HNS3_MBX_MAC_VLAN_MC_ADD,
 388                                 mac_addr->addr_bytes, RTE_ETHER_ADDR_LEN, false,
 389                                 NULL, 0);
 390         if (ret) {
 391                 hns3_ether_format_addr(mac_str, RTE_ETHER_ADDR_FMT_SIZE,
 392                                       mac_addr);
 393                 hns3_err(hw, "Failed to add mc mac addr(%s) for vf: %d",
 394                          mac_str, ret);
 395         }
 396
 397         return ret;
 398 }
 399
 400 static int
 401 hns3vf_remove_mc_mac_addr(struct hns3_hw *hw,
 402                           struct rte_ether_addr *mac_addr)
 403 {
 404         char mac_str[RTE_ETHER_ADDR_FMT_SIZE];
 405         int ret;
 406
 407         ret = hns3_send_mbx_msg(hw, HNS3_MBX_SET_MULTICAST,
 408                                 HNS3_MBX_MAC_VLAN_MC_REMOVE,
 409                                 mac_addr->addr_bytes, RTE_ETHER_ADDR_LEN, false,
 410                                 NULL, 0);
 411         if (ret) {
 412                 hns3_ether_format_addr(mac_str, RTE_ETHER_ADDR_FMT_SIZE,
 413                                       mac_addr);
 414                 hns3_err(hw, "Failed to remove mc mac addr(%s) for vf: %d",
 415                          mac_str, ret);
 416         }
 417
 418         return ret;
 419 }
 420
 421 static int
 422 hns3vf_set_mc_addr_chk_param(struct hns3_hw *hw,
 423                              struct rte_ether_addr *mc_addr_set,
 424                              uint32_t nb_mc_addr)
 425 {
 426         char mac_str[RTE_ETHER_ADDR_FMT_SIZE];
 427         struct rte_ether_addr *addr;
 428         uint32_t i;
 429         uint32_t j;
 430
 431         if (nb_mc_addr > HNS3_MC_MACADDR_NUM) {
 432                 hns3_err(hw, "failed to set mc mac addr, nb_mc_addr(%u) "
 433                          "invalid. valid range: 0~%d",
 434                          nb_mc_addr, HNS3_MC_MACADDR_NUM);
 435                 return -EINVAL;
 436         }
 437
 438         /* Check if input mac addresses are valid */
 439         for (i = 0; i < nb_mc_addr; i++) {
 440                 addr = &mc_addr_set[i];
 441                 if (!rte_is_multicast_ether_addr(addr)) {
 442                         hns3_ether_format_addr(mac_str, RTE_ETHER_ADDR_FMT_SIZE,
 443                                               addr);
 444                         hns3_err(hw,
 445                                  "failed to set mc mac addr, addr(%s) invalid.",
 446                                  mac_str);
 447                         return -EINVAL;
 448                 }
 449
 450                 /* Check if there are duplicate addresses */
 451                 for (j = i + 1; j < nb_mc_addr; j++) {
 452                         if (rte_is_same_ether_addr(addr, &mc_addr_set[j])) {
 453                                 hns3_ether_format_addr(mac_str,
 454                                                       RTE_ETHER_ADDR_FMT_SIZE,
 455                                                       addr);
 456                                 hns3_err(hw, "failed to set mc mac addr, "
 457                                          "addrs invalid. two same addrs(%s).",
 458                                          mac_str);
 459                                 return -EINVAL;
 460                         }
 461                 }
 462
 463                 /*
 464                  * Check if there are duplicate addresses between mac_addrs
 465                  * and mc_addr_set
 466                  */
 467                 for (j = 0; j < HNS3_VF_UC_MACADDR_NUM; j++) {
 468                         if (rte_is_same_ether_addr(addr,
 469                                                    &hw->data->mac_addrs[j])) {
 470                                 hns3_ether_format_addr(mac_str,
 471                                                       RTE_ETHER_ADDR_FMT_SIZE,
 472                                                       addr);
 473                                 hns3_err(hw, "failed to set mc mac addr, "
 474                                          "addrs invalid. addrs(%s) has already "
 475                                          "configured in mac_addr add API",
 476                                          mac_str);
 477                                 return -EINVAL;
 478                         }
 479                 }
 480         }
 481
 482         return 0;
 483 }
 484
 485 static int
 486 hns3vf_set_mc_mac_addr_list(struct rte_eth_dev *dev,
 487                             struct rte_ether_addr *mc_addr_set,
 488                             uint32_t nb_mc_addr)
 489 {
 490         struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 491         struct rte_ether_addr *addr;
 492         int cur_addr_num;
 493         int set_addr_num;
 494         int num;
 495         int ret;
 496         int i;
 497
 498         ret = hns3vf_set_mc_addr_chk_param(hw, mc_addr_set, nb_mc_addr);
 499         if (ret)
 500                 return ret;
 501
 502         rte_spinlock_lock(&hw->lock);
 503         cur_addr_num = hw->mc_addrs_num;
 504         for (i = 0; i < cur_addr_num; i++) {
 505                 num = cur_addr_num - i - 1;
 506                 addr = &hw->mc_addrs[num];
 507                 ret = hns3vf_remove_mc_mac_addr(hw, addr);
 508                 if (ret) {
 509                         rte_spinlock_unlock(&hw->lock);
 510                         return ret;
 511                 }
 512
 513                 hw->mc_addrs_num--;
 514         }
 515
 516         set_addr_num = (int)nb_mc_addr;
 517         for (i = 0; i < set_addr_num; i++) {
 518                 addr = &mc_addr_set[i];
 519                 ret = hns3vf_add_mc_mac_addr(hw, addr);
 520                 if (ret) {
 521                         rte_spinlock_unlock(&hw->lock);
 522                         return ret;
 523                 }
 524
 525                 rte_ether_addr_copy(addr, &hw->mc_addrs[hw->mc_addrs_num]);
 526                 hw->mc_addrs_num++;
 527         }
 528         rte_spinlock_unlock(&hw->lock);
 529
 530         return 0;
 531 }
 532
 533 static int
 534 hns3vf_configure_all_mc_mac_addr(struct hns3_adapter *hns, bool del)
 535 {
 536         char mac_str[RTE_ETHER_ADDR_FMT_SIZE];
 537         struct hns3_hw *hw = &hns->hw;
 538         struct rte_ether_addr *addr;
 539         int err = 0;
 540         int ret;
 541         int i;
 542
 543         for (i = 0; i < hw->mc_addrs_num; i++) {
 544                 addr = &hw->mc_addrs[i];
 545                 if (!rte_is_multicast_ether_addr(addr))
 546                         continue;
 547                 if (del)
 548                         ret = hns3vf_remove_mc_mac_addr(hw, addr);
 549                 else
 550                         ret = hns3vf_add_mc_mac_addr(hw, addr);
 551                 if (ret) {
 552                         err = ret;
 553                         hns3_ether_format_addr(mac_str, RTE_ETHER_ADDR_FMT_SIZE,
 554                                               addr);
 555                         hns3_err(hw, "Failed to %s mc mac addr: %s for vf: %d",
 556                                  del ? "Remove" : "Restore", mac_str, ret);
 557                 }
 558         }
 559         return err;
 560 }
 561
 562 static int
 563 hns3vf_set_promisc_mode(struct hns3_hw *hw, bool en_bc_pmc,
 564                         bool en_uc_pmc, bool en_mc_pmc)
 565 {
 566         struct hns3_mbx_vf_to_pf_cmd *req;
 567         struct hns3_cmd_desc desc;
 568         int ret;
 569
 570         req = (struct hns3_mbx_vf_to_pf_cmd *)desc.data;
 571
 572         /*
 573          * The hns3 VF PMD driver depends on the hns3 PF kernel ethdev driver,
 574          * so there are some features for promiscuous/allmulticast mode in hns3
 575          * VF PMD driver as below:
 576          * 1. The promiscuous/allmulticast mode can be configured successfully
 577          *    only based on the trusted VF device. If based on the non trusted
 578          *    VF device, configuring promiscuous/allmulticast mode will fail.
 579          *    The hns3 VF device can be confiruged as trusted device by hns3 PF
 580          *    kernel ethdev driver on the host by the following command:
 581          *      "ip link set <eth num> vf <vf id> turst on"
 582          * 2. After the promiscuous mode is configured successfully, hns3 VF PMD
 583          *    driver can receive the ingress and outgoing traffic. In the words,
 584          *    all the ingress packets, all the packets sent from the PF and
 585          *    other VFs on the same physical port.
 586          * 3. Note: Because of the hardware constraints, By default vlan filter
 587          *    is enabled and couldn't be turned off based on VF device, so vlan
 588          *    filter is still effective even in promiscuous mode. If upper
 589          *    applications don't call rte_eth_dev_vlan_filter API function to
 590          *    set vlan based on VF device, hns3 VF PMD driver will can't receive
 591          *    the packets with vlan tag in promiscuoue mode.
 592          */
 593         hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_MBX_VF_TO_PF, false);
 594         req->msg[0] = HNS3_MBX_SET_PROMISC_MODE;
 595         req->msg[1] = en_bc_pmc ? 1 : 0;
 596         req->msg[2] = en_uc_pmc ? 1 : 0;
 597         req->msg[3] = en_mc_pmc ? 1 : 0;
 598         req->msg[4] = hw->promisc_mode == HNS3_LIMIT_PROMISC_MODE ? 1 : 0;
 599
 600         ret = hns3_cmd_send(hw, &desc, 1);
 601         if (ret)
 602                 hns3_err(hw, "Set promisc mode fail, ret = %d", ret);
 603
 604         return ret;
 605 }
 606
 607 static int
 608 hns3vf_dev_promiscuous_enable(struct rte_eth_dev *dev)
 609 {
 610         struct hns3_adapter *hns = dev->data->dev_private;
 611         struct hns3_hw *hw = &hns->hw;
 612         int ret;
 613
 614         ret = hns3vf_set_promisc_mode(hw, true, true, true);
 615         if (ret)
 616                 hns3_err(hw, "Failed to enable promiscuous mode, ret = %d",
 617                         ret);
 618         return ret;
 619 }
 620
 621 static int
 622 hns3vf_dev_promiscuous_disable(struct rte_eth_dev *dev)
 623 {
 624         bool allmulti = dev->data->all_multicast ? true : false;
 625         struct hns3_adapter *hns = dev->data->dev_private;
 626         struct hns3_hw *hw = &hns->hw;
 627         int ret;
 628
 629         ret = hns3vf_set_promisc_mode(hw, true, false, allmulti);
 630         if (ret)
 631                 hns3_err(hw, "Failed to disable promiscuous mode, ret = %d",
 632                         ret);
 633         return ret;
 634 }
 635
 636 static int
 637 hns3vf_dev_allmulticast_enable(struct rte_eth_dev *dev)
 638 {
 639         struct hns3_adapter *hns = dev->data->dev_private;
 640         struct hns3_hw *hw = &hns->hw;
 641         int ret;
 642
 643         if (dev->data->promiscuous)
 644                 return 0;
 645
 646         ret = hns3vf_set_promisc_mode(hw, true, false, true);
 647         if (ret)
 648                 hns3_err(hw, "Failed to enable allmulticast mode, ret = %d",
 649                         ret);
 650         return ret;
 651 }
 652
 653 static int
 654 hns3vf_dev_allmulticast_disable(struct rte_eth_dev *dev)
 655 {
 656         struct hns3_adapter *hns = dev->data->dev_private;
 657         struct hns3_hw *hw = &hns->hw;
 658         int ret;
 659
 660         if (dev->data->promiscuous)
 661                 return 0;
 662
 663         ret = hns3vf_set_promisc_mode(hw, true, false, false);
 664         if (ret)
 665                 hns3_err(hw, "Failed to disable allmulticast mode, ret = %d",
 666                         ret);
 667         return ret;
 668 }
 669
 670 static int
 671 hns3vf_restore_promisc(struct hns3_adapter *hns)
 672 {
 673         struct hns3_hw *hw = &hns->hw;
 674         bool allmulti = hw->data->all_multicast ? true : false;
 675
 676         if (hw->data->promiscuous)
 677                 return hns3vf_set_promisc_mode(hw, true, true, true);
 678
 679         return hns3vf_set_promisc_mode(hw, true, false, allmulti);
 680 }
 681
 682 static int
 683 hns3vf_bind_ring_with_vector(struct hns3_hw *hw, uint8_t vector_id,
 684                              bool mmap, enum hns3_ring_type queue_type,
 685                              uint16_t queue_id)
 686 {
 687         struct hns3_vf_bind_vector_msg bind_msg;
 688         const char *op_str;
 689         uint16_t code;
 690         int ret;
 691
 692         memset(&bind_msg, 0, sizeof(bind_msg));
 693         code = mmap ? HNS3_MBX_MAP_RING_TO_VECTOR :
 694                 HNS3_MBX_UNMAP_RING_TO_VECTOR;
 695         bind_msg.vector_id = vector_id;
 696
 697         if (queue_type == HNS3_RING_TYPE_RX)
 698                 bind_msg.param[0].int_gl_index = HNS3_RING_GL_RX;
 699         else
 700                 bind_msg.param[0].int_gl_index = HNS3_RING_GL_TX;
 701
 702         bind_msg.param[0].ring_type = queue_type;
 703         bind_msg.ring_num = 1;
 704         bind_msg.param[0].tqp_index = queue_id;
 705         op_str = mmap ? "Map" : "Unmap";
 706         ret = hns3_send_mbx_msg(hw, code, 0, (uint8_t *)&bind_msg,
 707                                 sizeof(bind_msg), false, NULL, 0);
 708         if (ret)
 709                 hns3_err(hw, "%s TQP %u fail, vector_id is %u, ret is %d.",
 710                          op_str, queue_id, bind_msg.vector_id, ret);
 711
 712         return ret;
 713 }
 714
 715 static int
 716 hns3vf_init_ring_with_vector(struct hns3_hw *hw)
 717 {
 718         uint16_t vec;
 719         int ret;
 720         int i;
 721
 722         /*
 723          * In hns3 network engine, vector 0 is always the misc interrupt of this
 724          * function, vector 1~N can be used respectively for the queues of the
 725          * function. Tx and Rx queues with the same number share the interrupt
 726          * vector. In the initialization clearing the all hardware mapping
 727          * relationship configurations between queues and interrupt vectors is
 728          * needed, so some error caused by the residual configurations, such as
 729          * the unexpected Tx interrupt, can be avoid.
 730          */
 731         vec = hw->num_msi - 1; /* vector 0 for misc interrupt, not for queue */
 732         if (hw->intr.mapping_mode == HNS3_INTR_MAPPING_VEC_RSV_ONE)
 733                 vec = vec - 1; /* the last interrupt is reserved */
 734         hw->intr_tqps_num = RTE_MIN(vec, hw->tqps_num);
 735         for (i = 0; i < hw->intr_tqps_num; i++) {
 736                 /*
 737                  * Set gap limiter/rate limiter/quanity limiter algorithm
 738                  * configuration for interrupt coalesce of queue's interrupt.
 739                  */
 740                 hns3_set_queue_intr_gl(hw, i, HNS3_RING_GL_RX,
 741                                        HNS3_TQP_INTR_GL_DEFAULT);
 742                 hns3_set_queue_intr_gl(hw, i, HNS3_RING_GL_TX,
 743                                        HNS3_TQP_INTR_GL_DEFAULT);
 744                 hns3_set_queue_intr_rl(hw, i, HNS3_TQP_INTR_RL_DEFAULT);
 745                 /*
 746                  * QL(quantity limiter) is not used currently, just set 0 to
 747                  * close it.
 748                  */
 749                 hns3_set_queue_intr_ql(hw, i, HNS3_TQP_INTR_QL_DEFAULT);
 750
 751                 ret = hns3vf_bind_ring_with_vector(hw, vec, false,
 752                                                    HNS3_RING_TYPE_TX, i);
 753                 if (ret) {
 754                         PMD_INIT_LOG(ERR, "VF fail to unbind TX ring(%d) with "
 755                                           "vector: %u, ret=%d", i, vec, ret);
 756                         return ret;
 757                 }
 758
 759                 ret = hns3vf_bind_ring_with_vector(hw, vec, false,
 760                                                    HNS3_RING_TYPE_RX, i);
 761                 if (ret) {
 762                         PMD_INIT_LOG(ERR, "VF fail to unbind RX ring(%d) with "
 763                                           "vector: %u, ret=%d", i, vec, ret);
 764                         return ret;
 765                 }
 766         }
 767
 768         return 0;
 769 }
 770
 771 static int
 772 hns3vf_dev_configure(struct rte_eth_dev *dev)
 773 {
 774         struct hns3_adapter *hns = dev->data->dev_private;
 775         struct hns3_hw *hw = &hns->hw;
 776         struct rte_eth_conf *conf = &dev->data->dev_conf;
 777         enum rte_eth_rx_mq_mode mq_mode = conf->rxmode.mq_mode;
 778         uint16_t nb_rx_q = dev->data->nb_rx_queues;
 779         uint16_t nb_tx_q = dev->data->nb_tx_queues;
 780         struct rte_eth_rss_conf rss_conf;
 781         uint32_t max_rx_pkt_len;
 782         uint16_t mtu;
 783         bool gro_en;
 784         int ret;
 785
 786         hw->cfg_max_queues = RTE_MAX(nb_rx_q, nb_tx_q);
 787
 788         /*
 789          * Some versions of hardware network engine does not support
 790          * individually enable/disable/reset the Tx or Rx queue. These devices
 791          * must enable/disable/reset Tx and Rx queues at the same time. When the
 792          * numbers of Tx queues allocated by upper applications are not equal to
 793          * the numbers of Rx queues, driver needs to setup fake Tx or Rx queues
 794          * to adjust numbers of Tx/Rx queues. otherwise, network engine can not
 795          * work as usual. But these fake queues are imperceptible, and can not
 796          * be used by upper applications.
 797          */
 798         if (!hns3_dev_indep_txrx_supported(hw)) {
 799                 ret = hns3_set_fake_rx_or_tx_queues(dev, nb_rx_q, nb_tx_q);
 800                 if (ret) {
 801                         hns3_err(hw, "fail to set Rx/Tx fake queues, ret = %d.",
 802                                  ret);
 803                         return ret;
 804                 }
 805         }
 806
 807         hw->adapter_state = HNS3_NIC_CONFIGURING;
 808         if (conf->link_speeds & ETH_LINK_SPEED_FIXED) {
 809                 hns3_err(hw, "setting link speed/duplex not supported");
 810                 ret = -EINVAL;
 811                 goto cfg_err;
 812         }
 813
 814         /* When RSS is not configured, redirect the packet queue 0 */
 815         if ((uint32_t)mq_mode & ETH_MQ_RX_RSS_FLAG) {
 816                 conf->rxmode.offloads |= DEV_RX_OFFLOAD_RSS_HASH;
 817                 hw->rss_dis_flag = false;
 818                 rss_conf = conf->rx_adv_conf.rss_conf;
 819                 ret = hns3_dev_rss_hash_update(dev, &rss_conf);
 820                 if (ret)
 821                         goto cfg_err;
 822         }
 823
 824         /*
 825          * If jumbo frames are enabled, MTU needs to be refreshed
 826          * according to the maximum RX packet length.
 827          */
 828         if (conf->rxmode.offloads & DEV_RX_OFFLOAD_JUMBO_FRAME) {
 829                 max_rx_pkt_len = conf->rxmode.max_rx_pkt_len;
 830                 if (max_rx_pkt_len > HNS3_MAX_FRAME_LEN ||
 831                     max_rx_pkt_len <= HNS3_DEFAULT_FRAME_LEN) {
 832                         hns3_err(hw, "maximum Rx packet length must be greater "
 833                                  "than %u and less than %u when jumbo frame enabled.",
 834                                  (uint16_t)HNS3_DEFAULT_FRAME_LEN,
 835                                  (uint16_t)HNS3_MAX_FRAME_LEN);
 836                         ret = -EINVAL;
 837                         goto cfg_err;
 838                 }
 839
 840                 mtu = (uint16_t)HNS3_PKTLEN_TO_MTU(max_rx_pkt_len);
 841                 ret = hns3vf_dev_mtu_set(dev, mtu);
 842                 if (ret)
 843                         goto cfg_err;
 844                 dev->data->mtu = mtu;
 845         }
 846
 847         ret = hns3vf_dev_configure_vlan(dev);
 848         if (ret)
 849                 goto cfg_err;
 850
 851         /* config hardware GRO */
 852         gro_en = conf->rxmode.offloads & DEV_RX_OFFLOAD_TCP_LRO ? true : false;
 853         ret = hns3_config_gro(hw, gro_en);
 854         if (ret)
 855                 goto cfg_err;
 856
 857         hns->rx_simple_allowed = true;
 858         hns->rx_vec_allowed = true;
 859         hns->tx_simple_allowed = true;
 860         hns->tx_vec_allowed = true;
 861
 862         hns3_init_rx_ptype_tble(dev);
 863
 864         hw->adapter_state = HNS3_NIC_CONFIGURED;
 865         return 0;
 866
 867 cfg_err:
 868         (void)hns3_set_fake_rx_or_tx_queues(dev, 0, 0);
 869         hw->adapter_state = HNS3_NIC_INITIALIZED;
 870
 871         return ret;
 872 }
 873
 874 static int
 875 hns3vf_config_mtu(struct hns3_hw *hw, uint16_t mtu)
 876 {
 877         int ret;
 878
 879         ret = hns3_send_mbx_msg(hw, HNS3_MBX_SET_MTU, 0, (const uint8_t *)&mtu,
 880                                 sizeof(mtu), true, NULL, 0);
 881         if (ret)
 882                 hns3_err(hw, "Failed to set mtu (%u) for vf: %d", mtu, ret);
 883
 884         return ret;
 885 }
 886
 887 static int
 888 hns3vf_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
 889 {
 890         struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 891         uint32_t frame_size = mtu + HNS3_ETH_OVERHEAD;
 892         int ret;
 893
 894         /*
 895          * The hns3 PF/VF devices on the same port share the hardware MTU
 896          * configuration. Currently, we send mailbox to inform hns3 PF kernel
 897          * ethdev driver to finish hardware MTU configuration in hns3 VF PMD
 898          * driver, there is no need to stop the port for hns3 VF device, and the
 899          * MTU value issued by hns3 VF PMD driver must be less than or equal to
 900          * PF's MTU.
 901          */
 902         if (__atomic_load_n(&hw->reset.resetting, __ATOMIC_RELAXED)) {
 903                 hns3_err(hw, "Failed to set mtu during resetting");
 904                 return -EIO;
 905         }
 906
 907         /*
 908          * when Rx of scattered packets is off, we have some possibility of
 909          * using vector Rx process function or simple Rx functions in hns3 PMD
 910          * driver. If the input MTU is increased and the maximum length of
 911          * received packets is greater than the length of a buffer for Rx
 912          * packet, the hardware network engine needs to use multiple BDs and
 913          * buffers to store these packets. This will cause problems when still
 914          * using vector Rx process function or simple Rx function to receiving
 915          * packets. So, when Rx of scattered packets is off and device is
 916          * started, it is not permitted to increase MTU so that the maximum
 917          * length of Rx packets is greater than Rx buffer length.
 918          */
 919         if (dev->data->dev_started && !dev->data->scattered_rx &&
 920             frame_size > hw->rx_buf_len) {
 921                 hns3_err(hw, "failed to set mtu because current is "
 922                         "not scattered rx mode");
 923                 return -EOPNOTSUPP;
 924         }
 925
 926         rte_spinlock_lock(&hw->lock);
 927         ret = hns3vf_config_mtu(hw, mtu);
 928         if (ret) {
 929                 rte_spinlock_unlock(&hw->lock);
 930                 return ret;
 931         }
 932         if (mtu > RTE_ETHER_MTU)
 933                 dev->data->dev_conf.rxmode.offloads |=
 934                                                 DEV_RX_OFFLOAD_JUMBO_FRAME;
 935         else
 936                 dev->data->dev_conf.rxmode.offloads &=
 937                                                 ~DEV_RX_OFFLOAD_JUMBO_FRAME;
 938         dev->data->dev_conf.rxmode.max_rx_pkt_len = frame_size;
 939         rte_spinlock_unlock(&hw->lock);
 940
 941         return 0;
 942 }
 943
 944 static int
 945 hns3vf_dev_infos_get(struct rte_eth_dev *eth_dev, struct rte_eth_dev_info *info)
 946 {
 947         struct hns3_adapter *hns = eth_dev->data->dev_private;
 948         struct hns3_hw *hw = &hns->hw;
 949         uint16_t q_num = hw->tqps_num;
 950
 951         /*
 952          * In interrupt mode, 'max_rx_queues' is set based on the number of
 953          * MSI-X interrupt resources of the hardware.
 954          */
 955         if (hw->data->dev_conf.intr_conf.rxq == 1)
 956                 q_num = hw->intr_tqps_num;
 957
 958         info->max_rx_queues = q_num;
 959         info->max_tx_queues = hw->tqps_num;
 960         info->max_rx_pktlen = HNS3_MAX_FRAME_LEN; /* CRC included */
 961         info->min_rx_bufsize = HNS3_MIN_BD_BUF_SIZE;
 962         info->max_mac_addrs = HNS3_VF_UC_MACADDR_NUM;
 963         info->max_mtu = info->max_rx_pktlen - HNS3_ETH_OVERHEAD;
 964         info->max_lro_pkt_size = HNS3_MAX_LRO_SIZE;
 965
 966         info->rx_offload_capa = (DEV_RX_OFFLOAD_IPV4_CKSUM |
 967                                  DEV_RX_OFFLOAD_UDP_CKSUM |
 968                                  DEV_RX_OFFLOAD_TCP_CKSUM |
 969                                  DEV_RX_OFFLOAD_SCTP_CKSUM |
 970                                  DEV_RX_OFFLOAD_OUTER_IPV4_CKSUM |
 971                                  DEV_RX_OFFLOAD_OUTER_UDP_CKSUM |
 972                                  DEV_RX_OFFLOAD_SCATTER |
 973                                  DEV_RX_OFFLOAD_VLAN_STRIP |
 974                                  DEV_RX_OFFLOAD_VLAN_FILTER |
 975                                  DEV_RX_OFFLOAD_JUMBO_FRAME |
 976                                  DEV_RX_OFFLOAD_RSS_HASH |
 977                                  DEV_RX_OFFLOAD_TCP_LRO);
 978         info->tx_offload_capa = (DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM |
 979                                  DEV_TX_OFFLOAD_IPV4_CKSUM |
 980                                  DEV_TX_OFFLOAD_TCP_CKSUM |
 981                                  DEV_TX_OFFLOAD_UDP_CKSUM |
 982                                  DEV_TX_OFFLOAD_SCTP_CKSUM |
 983                                  DEV_TX_OFFLOAD_MULTI_SEGS |
 984                                  DEV_TX_OFFLOAD_TCP_TSO |
 985                                  DEV_TX_OFFLOAD_VXLAN_TNL_TSO |
 986                                  DEV_TX_OFFLOAD_GRE_TNL_TSO |
 987                                  DEV_TX_OFFLOAD_GENEVE_TNL_TSO |
 988                                  DEV_TX_OFFLOAD_MBUF_FAST_FREE |
 989                                  hns3_txvlan_cap_get(hw));
 990
 991         if (hns3_dev_indep_txrx_supported(hw))
 992                 info->dev_capa = RTE_ETH_DEV_CAPA_RUNTIME_RX_QUEUE_SETUP |
 993                                  RTE_ETH_DEV_CAPA_RUNTIME_TX_QUEUE_SETUP;
 994
 995         info->rx_desc_lim = (struct rte_eth_desc_lim) {
 996                 .nb_max = HNS3_MAX_RING_DESC,
 997                 .nb_min = HNS3_MIN_RING_DESC,
 998                 .nb_align = HNS3_ALIGN_RING_DESC,
 999         };
1000
1001         info->tx_desc_lim = (struct rte_eth_desc_lim) {
1002                 .nb_max = HNS3_MAX_RING_DESC,
1003                 .nb_min = HNS3_MIN_RING_DESC,
1004                 .nb_align = HNS3_ALIGN_RING_DESC,
1005                 .nb_seg_max = HNS3_MAX_TSO_BD_PER_PKT,
1006                 .nb_mtu_seg_max = hw->max_non_tso_bd_num,
1007         };
1008
1009         info->default_rxconf = (struct rte_eth_rxconf) {
1010                 .rx_free_thresh = HNS3_DEFAULT_RX_FREE_THRESH,
1011                 /*
1012                  * If there are no available Rx buffer descriptors, incoming
1013                  * packets are always dropped by hardware based on hns3 network
1014                  * engine.
1015                  */
1016                 .rx_drop_en = 1,
1017                 .offloads = 0,
1018         };
1019         info->default_txconf = (struct rte_eth_txconf) {
1020                 .tx_rs_thresh = HNS3_DEFAULT_TX_RS_THRESH,
1021                 .offloads = 0,
1022         };
1023
1024         info->vmdq_queue_num = 0;
1025
1026         info->reta_size = hw->rss_ind_tbl_size;
1027         info->hash_key_size = HNS3_RSS_KEY_SIZE;
1028         info->flow_type_rss_offloads = HNS3_ETH_RSS_SUPPORT;
1029         info->default_rxportconf.ring_size = HNS3_DEFAULT_RING_DESC;
1030         info->default_txportconf.ring_size = HNS3_DEFAULT_RING_DESC;
1031
1032         return 0;
1033 }
1034
1035 static void
1036 hns3vf_clear_event_cause(struct hns3_hw *hw, uint32_t regclr)
1037 {
1038         hns3_write_dev(hw, HNS3_VECTOR0_CMDQ_SRC_REG, regclr);
1039 }
1040
1041 static void
1042 hns3vf_disable_irq0(struct hns3_hw *hw)
1043 {
1044         hns3_write_dev(hw, HNS3_MISC_VECTOR_REG_BASE, 0);
1045 }
1046
1047 static void
1048 hns3vf_enable_irq0(struct hns3_hw *hw)
1049 {
1050         hns3_write_dev(hw, HNS3_MISC_VECTOR_REG_BASE, 1);
1051 }
1052
1053 static enum hns3vf_evt_cause
1054 hns3vf_check_event_cause(struct hns3_adapter *hns, uint32_t *clearval)
1055 {
1056         struct hns3_hw *hw = &hns->hw;
1057         enum hns3vf_evt_cause ret;
1058         uint32_t cmdq_stat_reg;
1059         uint32_t rst_ing_reg;
1060         uint32_t val;
1061
1062         /* Fetch the events from their corresponding regs */
1063         cmdq_stat_reg = hns3_read_dev(hw, HNS3_VECTOR0_CMDQ_STAT_REG);
1064
1065         if (BIT(HNS3_VECTOR0_RST_INT_B) & cmdq_stat_reg) {
1066                 rst_ing_reg = hns3_read_dev(hw, HNS3_FUN_RST_ING);
1067                 hns3_warn(hw, "resetting reg: 0x%x", rst_ing_reg);
1068                 hns3_atomic_set_bit(HNS3_VF_RESET, &hw->reset.pending);
1069                 __atomic_store_n(&hw->reset.disable_cmd, 1, __ATOMIC_RELAXED);
1070                 val = hns3_read_dev(hw, HNS3_VF_RST_ING);
1071                 hns3_write_dev(hw, HNS3_VF_RST_ING, val | HNS3_VF_RST_ING_BIT);
1072                 val = cmdq_stat_reg & ~BIT(HNS3_VECTOR0_RST_INT_B);
1073                 if (clearval) {
1074                         hw->reset.stats.global_cnt++;
1075                         hns3_warn(hw, "Global reset detected, clear reset status");
1076                 } else {
1077                         hns3_schedule_delayed_reset(hns);
1078                         hns3_warn(hw, "Global reset detected, don't clear reset status");
1079                 }
1080
1081                 ret = HNS3VF_VECTOR0_EVENT_RST;
1082                 goto out;
1083         }
1084
1085         /* Check for vector0 mailbox(=CMDQ RX) event source */
1086         if (BIT(HNS3_VECTOR0_RX_CMDQ_INT_B) & cmdq_stat_reg) {
1087                 val = cmdq_stat_reg & ~BIT(HNS3_VECTOR0_RX_CMDQ_INT_B);
1088                 ret = HNS3VF_VECTOR0_EVENT_MBX;
1089                 goto out;
1090         }
1091
1092         val = 0;
1093         ret = HNS3VF_VECTOR0_EVENT_OTHER;
1094 out:
1095         if (clearval)
1096                 *clearval = val;
1097         return ret;
1098 }
1099
1100 static void
1101 hns3vf_interrupt_handler(void *param)
1102 {
1103         struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
1104         struct hns3_adapter *hns = dev->data->dev_private;
1105         struct hns3_hw *hw = &hns->hw;
1106         enum hns3vf_evt_cause event_cause;
1107         uint32_t clearval;
1108
1109         if (hw->irq_thread_id == 0)
1110                 hw->irq_thread_id = pthread_self();
1111
1112         /* Disable interrupt */
1113         hns3vf_disable_irq0(hw);
1114
1115         /* Read out interrupt causes */
1116         event_cause = hns3vf_check_event_cause(hns, &clearval);
1117
1118         switch (event_cause) {
1119         case HNS3VF_VECTOR0_EVENT_RST:
1120                 hns3_schedule_reset(hns);
1121                 break;
1122         case HNS3VF_VECTOR0_EVENT_MBX:
1123                 hns3_dev_handle_mbx_msg(hw);
1124                 break;
1125         default:
1126                 break;
1127         }
1128
1129         /* Clear interrupt causes */
1130         hns3vf_clear_event_cause(hw, clearval);
1131
1132         /* Enable interrupt */
1133         hns3vf_enable_irq0(hw);
1134 }
1135
1136 static void
1137 hns3vf_set_default_dev_specifications(struct hns3_hw *hw)
1138 {
1139         hw->max_non_tso_bd_num = HNS3_MAX_NON_TSO_BD_PER_PKT;
1140         hw->rss_ind_tbl_size = HNS3_RSS_IND_TBL_SIZE;
1141         hw->rss_key_size = HNS3_RSS_KEY_SIZE;
1142         hw->intr.int_ql_max = HNS3_INTR_QL_NONE;
1143 }
1144
1145 static void
1146 hns3vf_parse_dev_specifications(struct hns3_hw *hw, struct hns3_cmd_desc *desc)
1147 {
1148         struct hns3_dev_specs_0_cmd *req0;
1149
1150         req0 = (struct hns3_dev_specs_0_cmd *)desc[0].data;
1151
1152         hw->max_non_tso_bd_num = req0->max_non_tso_bd_num;
1153         hw->rss_ind_tbl_size = rte_le_to_cpu_16(req0->rss_ind_tbl_size);
1154         hw->rss_key_size = rte_le_to_cpu_16(req0->rss_key_size);
1155         hw->intr.int_ql_max = rte_le_to_cpu_16(req0->intr_ql_max);
1156 }
1157
1158 static int
1159 hns3vf_check_dev_specifications(struct hns3_hw *hw)
1160 {
1161         if (hw->rss_ind_tbl_size == 0 ||
1162             hw->rss_ind_tbl_size > HNS3_RSS_IND_TBL_SIZE_MAX) {
1163                 hns3_warn(hw, "the size of hash lookup table configured (%u)"
1164                               " exceeds the maximum(%u)", hw->rss_ind_tbl_size,
1165                               HNS3_RSS_IND_TBL_SIZE_MAX);
1166                 return -EINVAL;
1167         }
1168
1169         return 0;
1170 }
1171
1172 static int
1173 hns3vf_query_dev_specifications(struct hns3_hw *hw)
1174 {
1175         struct hns3_cmd_desc desc[HNS3_QUERY_DEV_SPECS_BD_NUM];
1176         int ret;
1177         int i;
1178
1179         for (i = 0; i < HNS3_QUERY_DEV_SPECS_BD_NUM - 1; i++) {
1180                 hns3_cmd_setup_basic_desc(&desc[i], HNS3_OPC_QUERY_DEV_SPECS,
1181                                           true);
1182                 desc[i].flag |= rte_cpu_to_le_16(HNS3_CMD_FLAG_NEXT);
1183         }
1184         hns3_cmd_setup_basic_desc(&desc[i], HNS3_OPC_QUERY_DEV_SPECS, true);
1185
1186         ret = hns3_cmd_send(hw, desc, HNS3_QUERY_DEV_SPECS_BD_NUM);
1187         if (ret)
1188                 return ret;
1189
1190         hns3vf_parse_dev_specifications(hw, desc);
1191
1192         return hns3vf_check_dev_specifications(hw);
1193 }
1194
1195 static int
1196 hns3vf_get_capability(struct hns3_hw *hw)
1197 {
1198         struct rte_pci_device *pci_dev;
1199         struct rte_eth_dev *eth_dev;
1200         uint8_t revision;
1201         int ret;
1202
1203         eth_dev = &rte_eth_devices[hw->data->port_id];
1204         pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
1205
1206         /* Get PCI revision id */
1207         ret = rte_pci_read_config(pci_dev, &revision, HNS3_PCI_REVISION_ID_LEN,
1208                                   HNS3_PCI_REVISION_ID);
1209         if (ret != HNS3_PCI_REVISION_ID_LEN) {
1210                 PMD_INIT_LOG(ERR, "failed to read pci revision id, ret = %d",
1211                              ret);
1212                 return -EIO;
1213         }
1214         hw->revision = revision;
1215
1216         if (revision < PCI_REVISION_ID_HIP09_A) {
1217                 hns3vf_set_default_dev_specifications(hw);
1218                 hw->intr.mapping_mode = HNS3_INTR_MAPPING_VEC_RSV_ONE;
1219                 hw->intr.gl_unit = HNS3_INTR_COALESCE_GL_UINT_2US;
1220                 hw->tso_mode = HNS3_TSO_SW_CAL_PSEUDO_H_CSUM;
1221                 hw->min_tx_pkt_len = HNS3_HIP08_MIN_TX_PKT_LEN;
1222                 hw->rss_info.ipv6_sctp_offload_supported = false;
1223                 hw->promisc_mode = HNS3_UNLIMIT_PROMISC_MODE;
1224                 return 0;
1225         }
1226
1227         ret = hns3vf_query_dev_specifications(hw);
1228         if (ret) {
1229                 PMD_INIT_LOG(ERR,
1230                              "failed to query dev specifications, ret = %d",
1231                              ret);
1232                 return ret;
1233         }
1234
1235         hw->intr.mapping_mode = HNS3_INTR_MAPPING_VEC_ALL;
1236         hw->intr.gl_unit = HNS3_INTR_COALESCE_GL_UINT_1US;
1237         hw->tso_mode = HNS3_TSO_HW_CAL_PSEUDO_H_CSUM;
1238         hw->min_tx_pkt_len = HNS3_HIP09_MIN_TX_PKT_LEN;
1239         hw->rss_info.ipv6_sctp_offload_supported = true;
1240         hw->promisc_mode = HNS3_LIMIT_PROMISC_MODE;
1241
1242         return 0;
1243 }
1244
1245 static int
1246 hns3vf_check_tqp_info(struct hns3_hw *hw)
1247 {
1248         if (hw->tqps_num == 0) {
1249                 PMD_INIT_LOG(ERR, "Get invalid tqps_num(0) from PF.");
1250                 return -EINVAL;
1251         }
1252
1253         if (hw->rss_size_max == 0) {
1254                 PMD_INIT_LOG(ERR, "Get invalid rss_size_max(0) from PF.");
1255                 return -EINVAL;
1256         }
1257
1258         hw->tqps_num = RTE_MIN(hw->rss_size_max, hw->tqps_num);
1259
1260         return 0;
1261 }
1262
1263 static int
1264 hns3vf_get_port_base_vlan_filter_state(struct hns3_hw *hw)
1265 {
1266         uint8_t resp_msg;
1267         int ret;
1268
1269         ret = hns3_send_mbx_msg(hw, HNS3_MBX_SET_VLAN,
1270                                 HNS3_MBX_GET_PORT_BASE_VLAN_STATE, NULL, 0,
1271                                 true, &resp_msg, sizeof(resp_msg));
1272         if (ret) {
1273                 if (ret == -ETIME) {
1274                         /*
1275                          * Getting current port based VLAN state from PF driver
1276                          * will not affect VF driver's basic function. Because
1277                          * the VF driver relies on hns3 PF kernel ether driver,
1278                          * to avoid introducing compatibility issues with older
1279                          * version of PF driver, no failure will be returned
1280                          * when the return value is ETIME. This return value has
1281                          * the following scenarios:
1282                          * 1) Firmware didn't return the results in time
1283                          * 2) the result return by firmware is timeout
1284                          * 3) the older version of kernel side PF driver does
1285                          *    not support this mailbox message.
1286                          * For scenarios 1 and 2, it is most likely that a
1287                          * hardware error has occurred, or a hardware reset has
1288                          * occurred. In this case, these errors will be caught
1289                          * by other functions.
1290                          */
1291                         PMD_INIT_LOG(WARNING,
1292                                 "failed to get PVID state for timeout, maybe "
1293                                 "kernel side PF driver doesn't support this "
1294                                 "mailbox message, or firmware didn't respond.");
1295                         resp_msg = HNS3_PORT_BASE_VLAN_DISABLE;
1296                 } else {
1297                         PMD_INIT_LOG(ERR, "failed to get port based VLAN state,"
1298                                 " ret = %d", ret);
1299                         return ret;
1300                 }
1301         }
1302         hw->port_base_vlan_cfg.state = resp_msg ?
1303                 HNS3_PORT_BASE_VLAN_ENABLE : HNS3_PORT_BASE_VLAN_DISABLE;
1304         return 0;
1305 }
1306
1307 static int
1308 hns3vf_get_queue_info(struct hns3_hw *hw)
1309 {
1310 #define HNS3VF_TQPS_RSS_INFO_LEN        6
1311         uint8_t resp_msg[HNS3VF_TQPS_RSS_INFO_LEN];
1312         int ret;
1313
1314         ret = hns3_send_mbx_msg(hw, HNS3_MBX_GET_QINFO, 0, NULL, 0, true,
1315                                 resp_msg, HNS3VF_TQPS_RSS_INFO_LEN);
1316         if (ret) {
1317                 PMD_INIT_LOG(ERR, "Failed to get tqp info from PF: %d", ret);
1318                 return ret;
1319         }
1320
1321         memcpy(&hw->tqps_num, &resp_msg[0], sizeof(uint16_t));
1322         memcpy(&hw->rss_size_max, &resp_msg[2], sizeof(uint16_t));
1323
1324         return hns3vf_check_tqp_info(hw);
1325 }
1326
1327 static int
1328 hns3vf_get_queue_depth(struct hns3_hw *hw)
1329 {
1330 #define HNS3VF_TQPS_DEPTH_INFO_LEN      4
1331         uint8_t resp_msg[HNS3VF_TQPS_DEPTH_INFO_LEN];
1332         int ret;
1333
1334         ret = hns3_send_mbx_msg(hw, HNS3_MBX_GET_QDEPTH, 0, NULL, 0, true,
1335                                 resp_msg, HNS3VF_TQPS_DEPTH_INFO_LEN);
1336         if (ret) {
1337                 PMD_INIT_LOG(ERR, "Failed to get tqp depth info from PF: %d",
1338                              ret);
1339                 return ret;
1340         }
1341
1342         memcpy(&hw->num_tx_desc, &resp_msg[0], sizeof(uint16_t));
1343         memcpy(&hw->num_rx_desc, &resp_msg[2], sizeof(uint16_t));
1344
1345         return 0;
1346 }
1347
1348 static int
1349 hns3vf_get_tc_info(struct hns3_hw *hw)
1350 {
1351         uint8_t resp_msg;
1352         int ret;
1353         uint32_t i;
1354
1355         ret = hns3_send_mbx_msg(hw, HNS3_MBX_GET_TCINFO, 0, NULL, 0,
1356                                 true, &resp_msg, sizeof(resp_msg));
1357         if (ret) {
1358                 hns3_err(hw, "VF request to get TC info from PF failed %d",
1359                          ret);
1360                 return ret;
1361         }
1362
1363         hw->hw_tc_map = resp_msg;
1364
1365         for (i = 0; i < HNS3_MAX_TC_NUM; i++) {
1366                 if (hw->hw_tc_map & BIT(i))
1367                         hw->num_tc++;
1368         }
1369
1370         return 0;
1371 }
1372
1373 static int
1374 hns3vf_get_host_mac_addr(struct hns3_hw *hw)
1375 {
1376         uint8_t host_mac[RTE_ETHER_ADDR_LEN];
1377         int ret;
1378
1379         ret = hns3_send_mbx_msg(hw, HNS3_MBX_GET_MAC_ADDR, 0, NULL, 0,
1380                                 true, host_mac, RTE_ETHER_ADDR_LEN);
1381         if (ret) {
1382                 hns3_err(hw, "Failed to get mac addr from PF: %d", ret);
1383                 return ret;
1384         }
1385
1386         memcpy(hw->mac.mac_addr, host_mac, RTE_ETHER_ADDR_LEN);
1387
1388         return 0;
1389 }
1390
1391 static int
1392 hns3vf_get_configuration(struct hns3_hw *hw)
1393 {
1394         int ret;
1395
1396         hw->mac.media_type = HNS3_MEDIA_TYPE_NONE;
1397         hw->rss_dis_flag = false;
1398
1399         /* Get device capability */
1400         ret = hns3vf_get_capability(hw);
1401         if (ret) {
1402                 PMD_INIT_LOG(ERR, "failed to get device capability: %d.", ret);
1403                 return ret;
1404         }
1405
1406         /* Get queue configuration from PF */
1407         ret = hns3vf_get_queue_info(hw);
1408         if (ret)
1409                 return ret;
1410
1411         /* Get queue depth info from PF */
1412         ret = hns3vf_get_queue_depth(hw);
1413         if (ret)
1414                 return ret;
1415
1416         /* Get user defined VF MAC addr from PF */
1417         ret = hns3vf_get_host_mac_addr(hw);
1418         if (ret)
1419                 return ret;
1420
1421         ret = hns3vf_get_port_base_vlan_filter_state(hw);
1422         if (ret)
1423                 return ret;
1424
1425         /* Get tc configuration from PF */
1426         return hns3vf_get_tc_info(hw);
1427 }
1428
1429 static int
1430 hns3vf_set_tc_queue_mapping(struct hns3_adapter *hns, uint16_t nb_rx_q,
1431                             uint16_t nb_tx_q)
1432 {
1433         struct hns3_hw *hw = &hns->hw;
1434
1435         if (nb_rx_q < hw->num_tc) {
1436                 hns3_err(hw, "number of Rx queues(%u) is less than tcs(%u).",
1437                          nb_rx_q, hw->num_tc);
1438                 return -EINVAL;
1439         }
1440
1441         if (nb_tx_q < hw->num_tc) {
1442                 hns3_err(hw, "number of Tx queues(%u) is less than tcs(%u).",
1443                          nb_tx_q, hw->num_tc);
1444                 return -EINVAL;
1445         }
1446
1447         return hns3_queue_to_tc_mapping(hw, nb_rx_q, nb_tx_q);
1448 }
1449
1450 static void
1451 hns3vf_request_link_info(struct hns3_hw *hw)
1452 {
1453         uint8_t resp_msg;
1454         int ret;
1455
1456         if (__atomic_load_n(&hw->reset.resetting, __ATOMIC_RELAXED))
1457                 return;
1458         ret = hns3_send_mbx_msg(hw, HNS3_MBX_GET_LINK_STATUS, 0, NULL, 0, false,
1459                                 &resp_msg, sizeof(resp_msg));
1460         if (ret)
1461                 hns3_err(hw, "Failed to fetch link status from PF: %d", ret);
1462 }
1463
1464 void
1465 hns3vf_update_link_status(struct hns3_hw *hw, uint8_t link_status,
1466                           uint32_t link_speed, uint8_t link_duplex)
1467 {
1468         struct rte_eth_dev *dev = &rte_eth_devices[hw->data->port_id];
1469         struct hns3_mac *mac = &hw->mac;
1470         bool report_lse;
1471         bool changed;
1472
1473         changed = mac->link_status != link_status ||
1474                   mac->link_speed != link_speed ||
1475                   mac->link_duplex != link_duplex;
1476         if (!changed)
1477                 return;
1478
1479         /*
1480          * VF's link status/speed/duplex were updated by polling from PF driver,
1481          * because the link status/speed/duplex may be changed in the polling
1482          * interval, so driver will report lse (lsc event) once any of the above
1483          * thress variables changed.
1484          * But if the PF's link status is down and driver saved link status is
1485          * also down, there are no need to report lse.
1486          */
1487         report_lse = true;
1488         if (link_status == ETH_LINK_DOWN && link_status == mac->link_status)
1489                 report_lse = false;
1490
1491         mac->link_status = link_status;
1492         mac->link_speed = link_speed;
1493         mac->link_duplex = link_duplex;
1494
1495         if (report_lse)
1496                 rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC, NULL);
1497 }
1498
1499 static int
1500 hns3vf_vlan_filter_configure(struct hns3_adapter *hns, uint16_t vlan_id, int on)
1501 {
1502 #define HNS3VF_VLAN_MBX_MSG_LEN 5
1503         struct hns3_hw *hw = &hns->hw;
1504         uint8_t msg_data[HNS3VF_VLAN_MBX_MSG_LEN];
1505         uint16_t proto = htons(RTE_ETHER_TYPE_VLAN);
1506         uint8_t is_kill = on ? 0 : 1;
1507
1508         msg_data[0] = is_kill;
1509         memcpy(&msg_data[1], &vlan_id, sizeof(vlan_id));
1510         memcpy(&msg_data[3], &proto, sizeof(proto));
1511
1512         return hns3_send_mbx_msg(hw, HNS3_MBX_SET_VLAN, HNS3_MBX_VLAN_FILTER,
1513                                  msg_data, HNS3VF_VLAN_MBX_MSG_LEN, true, NULL,
1514                                  0);
1515 }
1516
1517 static int
1518 hns3vf_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
1519 {
1520         struct hns3_adapter *hns = dev->data->dev_private;
1521         struct hns3_hw *hw = &hns->hw;
1522         int ret;
1523
1524         if (__atomic_load_n(&hw->reset.resetting, __ATOMIC_RELAXED)) {
1525                 hns3_err(hw,
1526                          "vf set vlan id failed during resetting, vlan_id =%u",
1527                          vlan_id);
1528                 return -EIO;
1529         }
1530         rte_spinlock_lock(&hw->lock);
1531         ret = hns3vf_vlan_filter_configure(hns, vlan_id, on);
1532         rte_spinlock_unlock(&hw->lock);
1533         if (ret)
1534                 hns3_err(hw, "vf set vlan id failed, vlan_id =%u, ret =%d",
1535                          vlan_id, ret);
1536
1537         return ret;
1538 }
1539
1540 static int
1541 hns3vf_en_hw_strip_rxvtag(struct hns3_hw *hw, bool enable)
1542 {
1543         uint8_t msg_data;
1544         int ret;
1545
1546         msg_data = enable ? 1 : 0;
1547         ret = hns3_send_mbx_msg(hw, HNS3_MBX_SET_VLAN, HNS3_MBX_VLAN_RX_OFF_CFG,
1548                                 &msg_data, sizeof(msg_data), false, NULL, 0);
1549         if (ret)
1550                 hns3_err(hw, "vf enable strip failed, ret =%d", ret);
1551
1552         return ret;
1553 }
1554
1555 static int
1556 hns3vf_vlan_offload_set(struct rte_eth_dev *dev, int mask)
1557 {
1558         struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1559         struct rte_eth_conf *dev_conf = &dev->data->dev_conf;
1560         unsigned int tmp_mask;
1561         int ret = 0;
1562
1563         if (__atomic_load_n(&hw->reset.resetting, __ATOMIC_RELAXED)) {
1564                 hns3_err(hw, "vf set vlan offload failed during resetting, "
1565                              "mask = 0x%x", mask);
1566                 return -EIO;
1567         }
1568
1569         tmp_mask = (unsigned int)mask;
1570         /* Vlan stripping setting */
1571         if (tmp_mask & ETH_VLAN_STRIP_MASK) {
1572                 rte_spinlock_lock(&hw->lock);
1573                 /* Enable or disable VLAN stripping */
1574                 if (dev_conf->rxmode.offloads & DEV_RX_OFFLOAD_VLAN_STRIP)
1575                         ret = hns3vf_en_hw_strip_rxvtag(hw, true);
1576                 else
1577                         ret = hns3vf_en_hw_strip_rxvtag(hw, false);
1578                 rte_spinlock_unlock(&hw->lock);
1579         }
1580
1581         return ret;
1582 }
1583
1584 static int
1585 hns3vf_handle_all_vlan_table(struct hns3_adapter *hns, int on)
1586 {
1587         struct rte_vlan_filter_conf *vfc;
1588         struct hns3_hw *hw = &hns->hw;
1589         uint16_t vlan_id;
1590         uint64_t vbit;
1591         uint64_t ids;
1592         int ret = 0;
1593         uint32_t i;
1594
1595         vfc = &hw->data->vlan_filter_conf;
1596         for (i = 0; i < RTE_DIM(vfc->ids); i++) {
1597                 if (vfc->ids[i] == 0)
1598                         continue;
1599                 ids = vfc->ids[i];
1600                 while (ids) {
1601                         /*
1602                          * 64 means the num bits of ids, one bit corresponds to
1603                          * one vlan id
1604                          */
1605                         vlan_id = 64 * i;
1606                         /* count trailing zeroes */
1607                         vbit = ~ids & (ids - 1);
1608                         /* clear least significant bit set */
1609                         ids ^= (ids ^ (ids - 1)) ^ vbit;
1610                         for (; vbit;) {
1611                                 vbit >>= 1;
1612                                 vlan_id++;
1613                         }
1614                         ret = hns3vf_vlan_filter_configure(hns, vlan_id, on);
1615                         if (ret) {
1616                                 hns3_err(hw,
1617                                          "VF handle vlan table failed, ret =%d, on = %d",
1618                                          ret, on);
1619                                 return ret;
1620                         }
1621                 }
1622         }
1623
1624         return ret;
1625 }
1626
1627 static int
1628 hns3vf_remove_all_vlan_table(struct hns3_adapter *hns)
1629 {
1630         return hns3vf_handle_all_vlan_table(hns, 0);
1631 }
1632
1633 static int
1634 hns3vf_restore_vlan_conf(struct hns3_adapter *hns)
1635 {
1636         struct hns3_hw *hw = &hns->hw;
1637         struct rte_eth_conf *dev_conf;
1638         bool en;
1639         int ret;
1640
1641         dev_conf = &hw->data->dev_conf;
1642         en = dev_conf->rxmode.offloads & DEV_RX_OFFLOAD_VLAN_STRIP ? true
1643                                                                    : false;
1644         ret = hns3vf_en_hw_strip_rxvtag(hw, en);
1645         if (ret)
1646                 hns3_err(hw, "VF restore vlan conf fail, en =%d, ret =%d", en,
1647                          ret);
1648         return ret;
1649 }
1650
1651 static int
1652 hns3vf_dev_configure_vlan(struct rte_eth_dev *dev)
1653 {
1654         struct hns3_adapter *hns = dev->data->dev_private;
1655         struct rte_eth_dev_data *data = dev->data;
1656         struct hns3_hw *hw = &hns->hw;
1657         int ret;
1658
1659         if (data->dev_conf.txmode.hw_vlan_reject_tagged ||
1660             data->dev_conf.txmode.hw_vlan_reject_untagged ||
1661             data->dev_conf.txmode.hw_vlan_insert_pvid) {
1662                 hns3_warn(hw, "hw_vlan_reject_tagged, hw_vlan_reject_untagged "
1663                               "or hw_vlan_insert_pvid is not support!");
1664         }
1665
1666         /* Apply vlan offload setting */
1667         ret = hns3vf_vlan_offload_set(dev, ETH_VLAN_STRIP_MASK);
1668         if (ret)
1669                 hns3_err(hw, "dev config vlan offload failed, ret =%d", ret);
1670
1671         return ret;
1672 }
1673
1674 static int
1675 hns3vf_set_alive(struct hns3_hw *hw, bool alive)
1676 {
1677         uint8_t msg_data;
1678
1679         msg_data = alive ? 1 : 0;
1680         return hns3_send_mbx_msg(hw, HNS3_MBX_SET_ALIVE, 0, &msg_data,
1681                                  sizeof(msg_data), false, NULL, 0);
1682 }
1683
1684 static void
1685 hns3vf_keep_alive_handler(void *param)
1686 {
1687         struct rte_eth_dev *eth_dev = (struct rte_eth_dev *)param;
1688         struct hns3_adapter *hns = eth_dev->data->dev_private;
1689         struct hns3_hw *hw = &hns->hw;
1690         uint8_t respmsg;
1691         int ret;
1692
1693         ret = hns3_send_mbx_msg(hw, HNS3_MBX_KEEP_ALIVE, 0, NULL, 0,
1694                                 false, &respmsg, sizeof(uint8_t));
1695         if (ret)
1696                 hns3_err(hw, "VF sends keeping alive cmd failed(=%d)",
1697                          ret);
1698
1699         rte_eal_alarm_set(HNS3VF_KEEP_ALIVE_INTERVAL, hns3vf_keep_alive_handler,
1700                           eth_dev);
1701 }
1702
1703 static void
1704 hns3vf_service_handler(void *param)
1705 {
1706         struct rte_eth_dev *eth_dev = (struct rte_eth_dev *)param;
1707         struct hns3_adapter *hns = eth_dev->data->dev_private;
1708         struct hns3_hw *hw = &hns->hw;
1709
1710         /*
1711          * The query link status and reset processing are executed in the
1712          * interrupt thread.When the IMP reset occurs, IMP will not respond,
1713          * and the query operation will time out after 30ms. In the case of
1714          * multiple PF/VFs, each query failure timeout causes the IMP reset
1715          * interrupt to fail to respond within 100ms.
1716          * Before querying the link status, check whether there is a reset
1717          * pending, and if so, abandon the query.
1718          */
1719         if (!hns3vf_is_reset_pending(hns))
1720                 hns3vf_request_link_info(hw);
1721         else
1722                 hns3_warn(hw, "Cancel the query when reset is pending");
1723
1724         rte_eal_alarm_set(HNS3VF_SERVICE_INTERVAL, hns3vf_service_handler,
1725                           eth_dev);
1726 }
1727
1728 static int
1729 hns3_query_vf_resource(struct hns3_hw *hw)
1730 {
1731         struct hns3_vf_res_cmd *req;
1732         struct hns3_cmd_desc desc;
1733         uint16_t num_msi;
1734         int ret;
1735
1736         hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_QUERY_VF_RSRC, true);
1737         ret = hns3_cmd_send(hw, &desc, 1);
1738         if (ret) {
1739                 hns3_err(hw, "query vf resource failed, ret = %d", ret);
1740                 return ret;
1741         }
1742
1743         req = (struct hns3_vf_res_cmd *)desc.data;
1744         num_msi = hns3_get_field(rte_le_to_cpu_16(req->vf_intr_vector_number),
1745                                  HNS3_VF_VEC_NUM_M, HNS3_VF_VEC_NUM_S);
1746         if (num_msi < HNS3_MIN_VECTOR_NUM) {
1747                 hns3_err(hw, "Just %u msi resources, not enough for vf(min:%d)",
1748                          num_msi, HNS3_MIN_VECTOR_NUM);
1749                 return -EINVAL;
1750         }
1751
1752         hw->num_msi = num_msi;
1753
1754         return 0;
1755 }
1756
1757 static int
1758 hns3vf_init_hardware(struct hns3_adapter *hns)
1759 {
1760         struct hns3_hw *hw = &hns->hw;
1761         uint16_t mtu = hw->data->mtu;
1762         int ret;
1763
1764         ret = hns3vf_set_promisc_mode(hw, true, false, false);
1765         if (ret)
1766                 return ret;
1767
1768         ret = hns3vf_config_mtu(hw, mtu);
1769         if (ret)
1770                 goto err_init_hardware;
1771
1772         ret = hns3vf_vlan_filter_configure(hns, 0, 1);
1773         if (ret) {
1774                 PMD_INIT_LOG(ERR, "Failed to initialize VLAN config: %d", ret);
1775                 goto err_init_hardware;
1776         }
1777
1778         ret = hns3_config_gro(hw, false);
1779         if (ret) {
1780                 PMD_INIT_LOG(ERR, "Failed to config gro: %d", ret);
1781                 goto err_init_hardware;
1782         }
1783
1784         /*
1785          * In the initialization clearing the all hardware mapping relationship
1786          * configurations between queues and interrupt vectors is needed, so
1787          * some error caused by the residual configurations, such as the
1788          * unexpected interrupt, can be avoid.
1789          */
1790         ret = hns3vf_init_ring_with_vector(hw);
1791         if (ret) {
1792                 PMD_INIT_LOG(ERR, "Failed to init ring intr vector: %d", ret);
1793                 goto err_init_hardware;
1794         }
1795
1796         ret = hns3vf_set_alive(hw, true);
1797         if (ret) {
1798                 PMD_INIT_LOG(ERR, "Failed to VF send alive to PF: %d", ret);
1799                 goto err_init_hardware;
1800         }
1801
1802         return 0;
1803
1804 err_init_hardware:
1805         (void)hns3vf_set_promisc_mode(hw, false, false, false);
1806         return ret;
1807 }
1808
1809 static int
1810 hns3vf_clear_vport_list(struct hns3_hw *hw)
1811 {
1812         return hns3_send_mbx_msg(hw, HNS3_MBX_HANDLE_VF_TBL,
1813                                  HNS3_MBX_VPORT_LIST_CLEAR, NULL, 0, false,
1814                                  NULL, 0);
1815 }
1816
1817 static int
1818 hns3vf_init_vf(struct rte_eth_dev *eth_dev)
1819 {
1820         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
1821         struct hns3_adapter *hns = eth_dev->data->dev_private;
1822         struct hns3_hw *hw = &hns->hw;
1823         int ret;
1824
1825         PMD_INIT_FUNC_TRACE();
1826
1827         /* Get hardware io base address from pcie BAR2 IO space */
1828         hw->io_base = pci_dev->mem_resource[2].addr;
1829
1830         /* Firmware command queue initialize */
1831         ret = hns3_cmd_init_queue(hw);
1832         if (ret) {
1833                 PMD_INIT_LOG(ERR, "Failed to init cmd queue: %d", ret);
1834                 goto err_cmd_init_queue;
1835         }
1836
1837         /* Firmware command initialize */
1838         ret = hns3_cmd_init(hw);
1839         if (ret) {
1840                 PMD_INIT_LOG(ERR, "Failed to init cmd: %d", ret);
1841                 goto err_cmd_init;
1842         }
1843
1844         /* Get VF resource */
1845         ret = hns3_query_vf_resource(hw);
1846         if (ret)
1847                 goto err_cmd_init;
1848
1849         rte_spinlock_init(&hw->mbx_resp.lock);
1850
1851         hns3vf_clear_event_cause(hw, 0);
1852
1853         ret = rte_intr_callback_register(&pci_dev->intr_handle,
1854                                          hns3vf_interrupt_handler, eth_dev);
1855         if (ret) {
1856                 PMD_INIT_LOG(ERR, "Failed to register intr: %d", ret);
1857                 goto err_intr_callback_register;
1858         }
1859
1860         /* Enable interrupt */
1861         rte_intr_enable(&pci_dev->intr_handle);
1862         hns3vf_enable_irq0(hw);
1863
1864         /* Get configuration from PF */
1865         ret = hns3vf_get_configuration(hw);
1866         if (ret) {
1867                 PMD_INIT_LOG(ERR, "Failed to fetch configuration: %d", ret);
1868                 goto err_get_config;
1869         }
1870
1871         ret = hns3_tqp_stats_init(hw);
1872         if (ret)
1873                 goto err_get_config;
1874
1875         ret = hns3vf_set_tc_queue_mapping(hns, hw->tqps_num, hw->tqps_num);
1876         if (ret) {
1877                 PMD_INIT_LOG(ERR, "failed to set tc info, ret = %d.", ret);
1878                 goto err_set_tc_queue;
1879         }
1880
1881         ret = hns3vf_clear_vport_list(hw);
1882         if (ret) {
1883                 PMD_INIT_LOG(ERR, "Failed to clear tbl list: %d", ret);
1884                 goto err_set_tc_queue;
1885         }
1886
1887         ret = hns3vf_init_hardware(hns);
1888         if (ret)
1889                 goto err_set_tc_queue;
1890
1891         hns3_rss_set_default_args(hw);
1892
1893         return 0;
1894
1895 err_set_tc_queue:
1896         hns3_tqp_stats_uninit(hw);
1897
1898 err_get_config:
1899         hns3vf_disable_irq0(hw);
1900         rte_intr_disable(&pci_dev->intr_handle);
1901         hns3_intr_unregister(&pci_dev->intr_handle, hns3vf_interrupt_handler,
1902                              eth_dev);
1903 err_intr_callback_register:
1904 err_cmd_init:
1905         hns3_cmd_uninit(hw);
1906         hns3_cmd_destroy_queue(hw);
1907 err_cmd_init_queue:
1908         hw->io_base = NULL;
1909
1910         return ret;
1911 }
1912
1913 static void
1914 hns3vf_uninit_vf(struct rte_eth_dev *eth_dev)
1915 {
1916         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
1917         struct hns3_adapter *hns = eth_dev->data->dev_private;
1918         struct hns3_hw *hw = &hns->hw;
1919
1920         PMD_INIT_FUNC_TRACE();
1921
1922         hns3_rss_uninit(hns);
1923         (void)hns3_config_gro(hw, false);
1924         (void)hns3vf_set_alive(hw, false);
1925         (void)hns3vf_set_promisc_mode(hw, false, false, false);
1926         hns3_tqp_stats_uninit(hw);
1927         hns3vf_disable_irq0(hw);
1928         rte_intr_disable(&pci_dev->intr_handle);
1929         hns3_intr_unregister(&pci_dev->intr_handle, hns3vf_interrupt_handler,
1930                              eth_dev);
1931         hns3_cmd_uninit(hw);
1932         hns3_cmd_destroy_queue(hw);
1933         hw->io_base = NULL;
1934 }
1935
1936 static int
1937 hns3vf_do_stop(struct hns3_adapter *hns)
1938 {
1939         struct hns3_hw *hw = &hns->hw;
1940         int ret;
1941
1942         hw->mac.link_status = ETH_LINK_DOWN;
1943
1944         if (__atomic_load_n(&hw->reset.disable_cmd, __ATOMIC_RELAXED) == 0) {
1945                 hns3vf_configure_mac_addr(hns, true);
1946                 ret = hns3_reset_all_tqps(hns);
1947                 if (ret) {
1948                         hns3_err(hw, "failed to reset all queues ret = %d",
1949                                  ret);
1950                         return ret;
1951                 }
1952         }
1953         return 0;
1954 }
1955
1956 static void
1957 hns3vf_unmap_rx_interrupt(struct rte_eth_dev *dev)
1958 {
1959         struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1960         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
1961         struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
1962         uint8_t base = RTE_INTR_VEC_ZERO_OFFSET;
1963         uint8_t vec = RTE_INTR_VEC_ZERO_OFFSET;
1964         uint16_t q_id;
1965
1966         if (dev->data->dev_conf.intr_conf.rxq == 0)
1967                 return;
1968
1969         /* unmap the ring with vector */
1970         if (rte_intr_allow_others(intr_handle)) {
1971                 vec = RTE_INTR_VEC_RXTX_OFFSET;
1972                 base = RTE_INTR_VEC_RXTX_OFFSET;
1973         }
1974         if (rte_intr_dp_is_en(intr_handle)) {
1975                 for (q_id = 0; q_id < hw->used_rx_queues; q_id++) {
1976                         (void)hns3vf_bind_ring_with_vector(hw, vec, false,
1977                                                            HNS3_RING_TYPE_RX,
1978                                                            q_id);
1979                         if (vec < base + intr_handle->nb_efd - 1)
1980                                 vec++;
1981                 }
1982         }
1983         /* Clean datapath event and queue/vec mapping */
1984         rte_intr_efd_disable(intr_handle);
1985         if (intr_handle->intr_vec) {
1986                 rte_free(intr_handle->intr_vec);
1987                 intr_handle->intr_vec = NULL;
1988         }
1989 }
1990
1991 static int
1992 hns3vf_dev_stop(struct rte_eth_dev *dev)
1993 {
1994         struct hns3_adapter *hns = dev->data->dev_private;
1995         struct hns3_hw *hw = &hns->hw;
1996
1997         PMD_INIT_FUNC_TRACE();
1998         dev->data->dev_started = 0;
1999
2000         hw->adapter_state = HNS3_NIC_STOPPING;
2001         hns3_set_rxtx_function(dev);
2002         rte_wmb();
2003         /* Disable datapath on secondary process. */
2004         hns3_mp_req_stop_rxtx(dev);
2005         /* Prevent crashes when queues are still in use. */
2006         rte_delay_ms(hw->tqps_num);
2007
2008         rte_spinlock_lock(&hw->lock);
2009         if (__atomic_load_n(&hw->reset.resetting, __ATOMIC_RELAXED) == 0) {
2010                 hns3_stop_tqps(hw);
2011                 hns3vf_do_stop(hns);
2012                 hns3vf_unmap_rx_interrupt(dev);
2013                 hns3_dev_release_mbufs(hns);
2014                 hw->adapter_state = HNS3_NIC_CONFIGURED;
2015         }
2016         hns3_rx_scattered_reset(dev);
2017         rte_eal_alarm_cancel(hns3vf_service_handler, dev);
2018         rte_spinlock_unlock(&hw->lock);
2019
2020         return 0;
2021 }
2022
2023 static int
2024 hns3vf_dev_close(struct rte_eth_dev *eth_dev)
2025 {
2026         struct hns3_adapter *hns = eth_dev->data->dev_private;
2027         struct hns3_hw *hw = &hns->hw;
2028         int ret = 0;
2029
2030         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
2031                 rte_free(eth_dev->process_private);
2032                 eth_dev->process_private = NULL;
2033                 return 0;
2034         }
2035
2036         if (hw->adapter_state == HNS3_NIC_STARTED)
2037                 ret = hns3vf_dev_stop(eth_dev);
2038
2039         hw->adapter_state = HNS3_NIC_CLOSING;
2040         hns3_reset_abort(hns);
2041         hw->adapter_state = HNS3_NIC_CLOSED;
2042         rte_eal_alarm_cancel(hns3vf_keep_alive_handler, eth_dev);
2043         hns3vf_configure_all_mc_mac_addr(hns, true);
2044         hns3vf_remove_all_vlan_table(hns);
2045         hns3vf_uninit_vf(eth_dev);
2046         hns3_free_all_queues(eth_dev);
2047         rte_free(hw->reset.wait_data);
2048         rte_free(eth_dev->process_private);
2049         eth_dev->process_private = NULL;
2050         hns3_mp_uninit_primary();
2051         hns3_warn(hw, "Close port %u finished", hw->data->port_id);
2052
2053         return ret;
2054 }
2055
2056 static int
2057 hns3vf_fw_version_get(struct rte_eth_dev *eth_dev, char *fw_version,
2058                       size_t fw_size)
2059 {
2060         struct hns3_adapter *hns = eth_dev->data->dev_private;
2061         struct hns3_hw *hw = &hns->hw;
2062         uint32_t version = hw->fw_version;
2063         int ret;
2064
2065         ret = snprintf(fw_version, fw_size, "%lu.%lu.%lu.%lu",
2066                        hns3_get_field(version, HNS3_FW_VERSION_BYTE3_M,
2067                                       HNS3_FW_VERSION_BYTE3_S),
2068                        hns3_get_field(version, HNS3_FW_VERSION_BYTE2_M,
2069                                       HNS3_FW_VERSION_BYTE2_S),
2070                        hns3_get_field(version, HNS3_FW_VERSION_BYTE1_M,
2071                                       HNS3_FW_VERSION_BYTE1_S),
2072                        hns3_get_field(version, HNS3_FW_VERSION_BYTE0_M,
2073                                       HNS3_FW_VERSION_BYTE0_S));
2074         ret += 1; /* add the size of '\0' */
2075         if (fw_size < (uint32_t)ret)
2076                 return ret;
2077         else
2078                 return 0;
2079 }
2080
2081 static int
2082 hns3vf_dev_link_update(struct rte_eth_dev *eth_dev,
2083                        __rte_unused int wait_to_complete)
2084 {
2085         struct hns3_adapter *hns = eth_dev->data->dev_private;
2086         struct hns3_hw *hw = &hns->hw;
2087         struct hns3_mac *mac = &hw->mac;
2088         struct rte_eth_link new_link;
2089
2090         memset(&new_link, 0, sizeof(new_link));
2091         switch (mac->link_speed) {
2092         case ETH_SPEED_NUM_10M:
2093         case ETH_SPEED_NUM_100M:
2094         case ETH_SPEED_NUM_1G:
2095         case ETH_SPEED_NUM_10G:
2096         case ETH_SPEED_NUM_25G:
2097         case ETH_SPEED_NUM_40G:
2098         case ETH_SPEED_NUM_50G:
2099         case ETH_SPEED_NUM_100G:
2100         case ETH_SPEED_NUM_200G:
2101                 new_link.link_speed = mac->link_speed;
2102                 break;
2103         default:
2104                 new_link.link_speed = ETH_SPEED_NUM_100M;
2105                 break;
2106         }
2107
2108         new_link.link_duplex = mac->link_duplex;
2109         new_link.link_status = mac->link_status ? ETH_LINK_UP : ETH_LINK_DOWN;
2110         new_link.link_autoneg =
2111             !(eth_dev->data->dev_conf.link_speeds & ETH_LINK_SPEED_FIXED);
2112
2113         return rte_eth_linkstatus_set(eth_dev, &new_link);
2114 }
2115
2116 static int
2117 hns3vf_do_start(struct hns3_adapter *hns, bool reset_queue)
2118 {
2119         struct hns3_hw *hw = &hns->hw;
2120         uint16_t nb_rx_q = hw->data->nb_rx_queues;
2121         uint16_t nb_tx_q = hw->data->nb_tx_queues;
2122         int ret;
2123
2124         ret = hns3vf_set_tc_queue_mapping(hns, nb_rx_q, nb_tx_q);
2125         if (ret)
2126                 return ret;
2127
2128         hns3_enable_rxd_adv_layout(hw);
2129
2130         ret = hns3_init_queues(hns, reset_queue);
2131         if (ret)
2132                 hns3_err(hw, "failed to init queues, ret = %d.", ret);
2133
2134         return ret;
2135 }
2136
2137 static int
2138 hns3vf_map_rx_interrupt(struct rte_eth_dev *dev)
2139 {
2140         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
2141         struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
2142         struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2143         uint8_t base = RTE_INTR_VEC_ZERO_OFFSET;
2144         uint8_t vec = RTE_INTR_VEC_ZERO_OFFSET;
2145         uint32_t intr_vector;
2146         uint16_t q_id;
2147         int ret;
2148
2149         /*
2150          * hns3 needs a separate interrupt to be used as event interrupt which
2151          * could not be shared with task queue pair, so KERNEL drivers need
2152          * support multiple interrupt vectors.
2153          */
2154         if (dev->data->dev_conf.intr_conf.rxq == 0 ||
2155             !rte_intr_cap_multiple(intr_handle))
2156                 return 0;
2157
2158         rte_intr_disable(intr_handle);
2159         intr_vector = hw->used_rx_queues;
2160         /* It creates event fd for each intr vector when MSIX is used */
2161         if (rte_intr_efd_enable(intr_handle, intr_vector))
2162                 return -EINVAL;
2163
2164         if (intr_handle->intr_vec == NULL) {
2165                 intr_handle->intr_vec =
2166                         rte_zmalloc("intr_vec",
2167                                     hw->used_rx_queues * sizeof(int), 0);
2168                 if (intr_handle->intr_vec == NULL) {
2169                         hns3_err(hw, "Failed to allocate %u rx_queues"
2170                                      " intr_vec", hw->used_rx_queues);
2171                         ret = -ENOMEM;
2172                         goto vf_alloc_intr_vec_error;
2173                 }
2174         }
2175
2176         if (rte_intr_allow_others(intr_handle)) {
2177                 vec = RTE_INTR_VEC_RXTX_OFFSET;
2178                 base = RTE_INTR_VEC_RXTX_OFFSET;
2179         }
2180
2181         for (q_id = 0; q_id < hw->used_rx_queues; q_id++) {
2182                 ret = hns3vf_bind_ring_with_vector(hw, vec, true,
2183                                                    HNS3_RING_TYPE_RX, q_id);
2184                 if (ret)
2185                         goto vf_bind_vector_error;
2186                 intr_handle->intr_vec[q_id] = vec;
2187                 /*
2188                  * If there are not enough efds (e.g. not enough interrupt),
2189                  * remaining queues will be bond to the last interrupt.
2190                  */
2191                 if (vec < base + intr_handle->nb_efd - 1)
2192                         vec++;
2193         }
2194         rte_intr_enable(intr_handle);
2195         return 0;
2196
2197 vf_bind_vector_error:
2198         free(intr_handle->intr_vec);
2199         intr_handle->intr_vec = NULL;
2200 vf_alloc_intr_vec_error:
2201         rte_intr_efd_disable(intr_handle);
2202         return ret;
2203 }
2204
2205 static int
2206 hns3vf_restore_rx_interrupt(struct hns3_hw *hw)
2207 {
2208         struct rte_eth_dev *dev = &rte_eth_devices[hw->data->port_id];
2209         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
2210         struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
2211         uint16_t q_id;
2212         int ret;
2213
2214         if (dev->data->dev_conf.intr_conf.rxq == 0)
2215                 return 0;
2216
2217         if (rte_intr_dp_is_en(intr_handle)) {
2218                 for (q_id = 0; q_id < hw->used_rx_queues; q_id++) {
2219                         ret = hns3vf_bind_ring_with_vector(hw,
2220                                         intr_handle->intr_vec[q_id], true,
2221                                         HNS3_RING_TYPE_RX, q_id);
2222                         if (ret)
2223                                 return ret;
2224                 }
2225         }
2226
2227         return 0;
2228 }
2229
2230 static void
2231 hns3vf_restore_filter(struct rte_eth_dev *dev)
2232 {
2233         hns3_restore_rss_filter(dev);
2234 }
2235
2236 static int
2237 hns3vf_dev_start(struct rte_eth_dev *dev)
2238 {
2239         struct hns3_adapter *hns = dev->data->dev_private;
2240         struct hns3_hw *hw = &hns->hw;
2241         int ret;
2242
2243         PMD_INIT_FUNC_TRACE();
2244         if (__atomic_load_n(&hw->reset.resetting, __ATOMIC_RELAXED))
2245                 return -EBUSY;
2246
2247         rte_spinlock_lock(&hw->lock);
2248         hw->adapter_state = HNS3_NIC_STARTING;
2249         ret = hns3vf_do_start(hns, true);
2250         if (ret) {
2251                 hw->adapter_state = HNS3_NIC_CONFIGURED;
2252                 rte_spinlock_unlock(&hw->lock);
2253                 return ret;
2254         }
2255         ret = hns3vf_map_rx_interrupt(dev);
2256         if (ret) {
2257                 hw->adapter_state = HNS3_NIC_CONFIGURED;
2258                 rte_spinlock_unlock(&hw->lock);
2259                 return ret;
2260         }
2261
2262         /*
2263          * There are three register used to control the status of a TQP
2264          * (contains a pair of Tx queue and Rx queue) in the new version network
2265          * engine. One is used to control the enabling of Tx queue, the other is
2266          * used to control the enabling of Rx queue, and the last is the master
2267          * switch used to control the enabling of the tqp. The Tx register and
2268          * TQP register must be enabled at the same time to enable a Tx queue.
2269          * The same applies to the Rx queue. For the older network enginem, this
2270          * function only refresh the enabled flag, and it is used to update the
2271          * status of queue in the dpdk framework.
2272          */
2273         ret = hns3_start_all_txqs(dev);
2274         if (ret) {
2275                 hw->adapter_state = HNS3_NIC_CONFIGURED;
2276                 rte_spinlock_unlock(&hw->lock);
2277                 return ret;
2278         }
2279
2280         ret = hns3_start_all_rxqs(dev);
2281         if (ret) {
2282                 hns3_stop_all_txqs(dev);
2283                 hw->adapter_state = HNS3_NIC_CONFIGURED;
2284                 rte_spinlock_unlock(&hw->lock);
2285                 return ret;
2286         }
2287
2288         hw->adapter_state = HNS3_NIC_STARTED;
2289         rte_spinlock_unlock(&hw->lock);
2290
2291         hns3_rx_scattered_calc(dev);
2292         hns3_set_rxtx_function(dev);
2293         hns3_mp_req_start_rxtx(dev);
2294         hns3vf_service_handler(dev);
2295
2296         hns3vf_restore_filter(dev);
2297
2298         /* Enable interrupt of all rx queues before enabling queues */
2299         hns3_dev_all_rx_queue_intr_enable(hw, true);
2300
2301         /*
2302          * After finished the initialization, start all tqps to receive/transmit
2303          * packets and refresh all queue status.
2304          */
2305         hns3_start_tqps(hw);
2306
2307         return ret;
2308 }
2309
2310 static bool
2311 is_vf_reset_done(struct hns3_hw *hw)
2312 {
2313 #define HNS3_FUN_RST_ING_BITS \
2314         (BIT(HNS3_VECTOR0_GLOBALRESET_INT_B) | \
2315          BIT(HNS3_VECTOR0_CORERESET_INT_B) | \
2316          BIT(HNS3_VECTOR0_IMPRESET_INT_B) | \
2317          BIT(HNS3_VECTOR0_FUNCRESET_INT_B))
2318
2319         uint32_t val;
2320
2321         if (hw->reset.level == HNS3_VF_RESET) {
2322                 val = hns3_read_dev(hw, HNS3_VF_RST_ING);
2323                 if (val & HNS3_VF_RST_ING_BIT)
2324                         return false;
2325         } else {
2326                 val = hns3_read_dev(hw, HNS3_FUN_RST_ING);
2327                 if (val & HNS3_FUN_RST_ING_BITS)
2328                         return false;
2329         }
2330         return true;
2331 }
2332
2333 bool
2334 hns3vf_is_reset_pending(struct hns3_adapter *hns)
2335 {
2336         struct hns3_hw *hw = &hns->hw;
2337         enum hns3_reset_level reset;
2338
2339         /*
2340          * According to the protocol of PCIe, FLR to a PF device resets the PF
2341          * state as well as the SR-IOV extended capability including VF Enable
2342          * which means that VFs no longer exist.
2343          *
2344          * HNS3_VF_FULL_RESET means PF device is in FLR reset. when PF device
2345          * is in FLR stage, the register state of VF device is not reliable,
2346          * so register states detection can not be carried out. In this case,
2347          * we just ignore the register states and return false to indicate that
2348          * there are no other reset states that need to be processed by driver.
2349          */
2350         if (hw->reset.level == HNS3_VF_FULL_RESET)
2351                 return false;
2352
2353         /* Check the registers to confirm whether there is reset pending */
2354         hns3vf_check_event_cause(hns, NULL);
2355         reset = hns3vf_get_reset_level(hw, &hw->reset.pending);
2356         if (hw->reset.level != HNS3_NONE_RESET && hw->reset.level < reset) {
2357                 hns3_warn(hw, "High level reset %d is pending", reset);
2358                 return true;
2359         }
2360         return false;
2361 }
2362
2363 static int
2364 hns3vf_wait_hardware_ready(struct hns3_adapter *hns)
2365 {
2366         struct hns3_hw *hw = &hns->hw;
2367         struct hns3_wait_data *wait_data = hw->reset.wait_data;
2368         struct timeval tv;
2369
2370         if (wait_data->result == HNS3_WAIT_SUCCESS) {
2371                 /*
2372                  * After vf reset is ready, the PF may not have completed
2373                  * the reset processing. The vf sending mbox to PF may fail
2374                  * during the pf reset, so it is better to add extra delay.
2375                  */
2376                 if (hw->reset.level == HNS3_VF_FUNC_RESET ||
2377                     hw->reset.level == HNS3_FLR_RESET)
2378                         return 0;
2379                 /* Reset retry process, no need to add extra delay. */
2380                 if (hw->reset.attempts)
2381                         return 0;
2382                 if (wait_data->check_completion == NULL)
2383                         return 0;
2384
2385                 wait_data->check_completion = NULL;
2386                 wait_data->interval = 1 * MSEC_PER_SEC * USEC_PER_MSEC;
2387                 wait_data->count = 1;
2388                 wait_data->result = HNS3_WAIT_REQUEST;
2389                 rte_eal_alarm_set(wait_data->interval, hns3_wait_callback,
2390                                   wait_data);
2391                 hns3_warn(hw, "hardware is ready, delay 1 sec for PF reset complete");
2392                 return -EAGAIN;
2393         } else if (wait_data->result == HNS3_WAIT_TIMEOUT) {
2394                 gettimeofday(&tv, NULL);
2395                 hns3_warn(hw, "Reset step4 hardware not ready after reset time=%ld.%.6ld",
2396                           tv.tv_sec, tv.tv_usec);
2397                 return -ETIME;
2398         } else if (wait_data->result == HNS3_WAIT_REQUEST)
2399                 return -EAGAIN;
2400
2401         wait_data->hns = hns;
2402         wait_data->check_completion = is_vf_reset_done;
2403         wait_data->end_ms = (uint64_t)HNS3VF_RESET_WAIT_CNT *
2404                                       HNS3VF_RESET_WAIT_MS + get_timeofday_ms();
2405         wait_data->interval = HNS3VF_RESET_WAIT_MS * USEC_PER_MSEC;
2406         wait_data->count = HNS3VF_RESET_WAIT_CNT;
2407         wait_data->result = HNS3_WAIT_REQUEST;
2408         rte_eal_alarm_set(wait_data->interval, hns3_wait_callback, wait_data);
2409         return -EAGAIN;
2410 }
2411
2412 static int
2413 hns3vf_prepare_reset(struct hns3_adapter *hns)
2414 {
2415         struct hns3_hw *hw = &hns->hw;
2416         int ret;
2417
2418         if (hw->reset.level == HNS3_VF_FUNC_RESET) {
2419                 ret = hns3_send_mbx_msg(hw, HNS3_MBX_RESET, 0, NULL,
2420                                         0, true, NULL, 0);
2421                 if (ret)
2422                         return ret;
2423         }
2424         __atomic_store_n(&hw->reset.disable_cmd, 1, __ATOMIC_RELAXED);
2425
2426         return 0;
2427 }
2428
2429 static int
2430 hns3vf_stop_service(struct hns3_adapter *hns)
2431 {
2432         struct hns3_hw *hw = &hns->hw;
2433         struct rte_eth_dev *eth_dev;
2434
2435         eth_dev = &rte_eth_devices[hw->data->port_id];
2436         if (hw->adapter_state == HNS3_NIC_STARTED) {
2437                 rte_eal_alarm_cancel(hns3vf_service_handler, eth_dev);
2438                 hns3vf_update_link_status(hw, ETH_LINK_DOWN, hw->mac.link_speed,
2439                         hw->mac.link_duplex);
2440         }
2441         hw->mac.link_status = ETH_LINK_DOWN;
2442
2443         hns3_set_rxtx_function(eth_dev);
2444         rte_wmb();
2445         /* Disable datapath on secondary process. */
2446         hns3_mp_req_stop_rxtx(eth_dev);
2447         rte_delay_ms(hw->tqps_num);
2448
2449         rte_spinlock_lock(&hw->lock);
2450         if (hw->adapter_state == HNS3_NIC_STARTED ||
2451             hw->adapter_state == HNS3_NIC_STOPPING) {
2452                 hns3_enable_all_queues(hw, false);
2453                 hns3vf_do_stop(hns);
2454                 hw->reset.mbuf_deferred_free = true;
2455         } else
2456                 hw->reset.mbuf_deferred_free = false;
2457
2458         /*
2459          * It is cumbersome for hardware to pick-and-choose entries for deletion
2460          * from table space. Hence, for function reset software intervention is
2461          * required to delete the entries.
2462          */
2463         if (__atomic_load_n(&hw->reset.disable_cmd, __ATOMIC_RELAXED) == 0)
2464                 hns3vf_configure_all_mc_mac_addr(hns, true);
2465         rte_spinlock_unlock(&hw->lock);
2466
2467         return 0;
2468 }
2469
2470 static int
2471 hns3vf_start_service(struct hns3_adapter *hns)
2472 {
2473         struct hns3_hw *hw = &hns->hw;
2474         struct rte_eth_dev *eth_dev;
2475
2476         eth_dev = &rte_eth_devices[hw->data->port_id];
2477         hns3_set_rxtx_function(eth_dev);
2478         hns3_mp_req_start_rxtx(eth_dev);
2479         if (hw->adapter_state == HNS3_NIC_STARTED) {
2480                 hns3vf_service_handler(eth_dev);
2481
2482                 /* Enable interrupt of all rx queues before enabling queues */
2483                 hns3_dev_all_rx_queue_intr_enable(hw, true);
2484                 /*
2485                  * Enable state of each rxq and txq will be recovered after
2486                  * reset, so we need to restore them before enable all tqps;
2487                  */
2488                 hns3_restore_tqp_enable_state(hw);
2489                 /*
2490                  * When finished the initialization, enable queues to receive
2491                  * and transmit packets.
2492                  */
2493                 hns3_enable_all_queues(hw, true);
2494         }
2495
2496         return 0;
2497 }
2498
2499 static int
2500 hns3vf_check_default_mac_change(struct hns3_hw *hw)
2501 {
2502         char mac_str[RTE_ETHER_ADDR_FMT_SIZE];
2503         struct rte_ether_addr *hw_mac;
2504         int ret;
2505
2506         /*
2507          * The hns3 PF ethdev driver in kernel support setting VF MAC address
2508          * on the host by "ip link set ..." command. If the hns3 PF kernel
2509          * ethdev driver sets the MAC address for VF device after the
2510          * initialization of the related VF device, the PF driver will notify
2511          * VF driver to reset VF device to make the new MAC address effective
2512          * immediately. The hns3 VF PMD driver should check whether the MAC
2513          * address has been changed by the PF kernel ethdev driver, if changed
2514          * VF driver should configure hardware using the new MAC address in the
2515          * recovering hardware configuration stage of the reset process.
2516          */
2517         ret = hns3vf_get_host_mac_addr(hw);
2518         if (ret)
2519                 return ret;
2520
2521         hw_mac = (struct rte_ether_addr *)hw->mac.mac_addr;
2522         ret = rte_is_zero_ether_addr(hw_mac);
2523         if (ret) {
2524                 rte_ether_addr_copy(&hw->data->mac_addrs[0], hw_mac);
2525         } else {
2526                 ret = rte_is_same_ether_addr(&hw->data->mac_addrs[0], hw_mac);
2527                 if (!ret) {
2528                         rte_ether_addr_copy(hw_mac, &hw->data->mac_addrs[0]);
2529                         hns3_ether_format_addr(mac_str, RTE_ETHER_ADDR_FMT_SIZE,
2530                                               &hw->data->mac_addrs[0]);
2531                         hns3_warn(hw, "Default MAC address has been changed to:"
2532                                   " %s by the host PF kernel ethdev driver",
2533                                   mac_str);
2534                 }
2535         }
2536
2537         return 0;
2538 }
2539
2540 static int
2541 hns3vf_restore_conf(struct hns3_adapter *hns)
2542 {
2543         struct hns3_hw *hw = &hns->hw;
2544         int ret;
2545
2546         ret = hns3vf_check_default_mac_change(hw);
2547         if (ret)
2548                 return ret;
2549
2550         ret = hns3vf_configure_mac_addr(hns, false);
2551         if (ret)
2552                 return ret;
2553
2554         ret = hns3vf_configure_all_mc_mac_addr(hns, false);
2555         if (ret)
2556                 goto err_mc_mac;
2557
2558         ret = hns3vf_restore_promisc(hns);
2559         if (ret)
2560                 goto err_vlan_table;
2561
2562         ret = hns3vf_restore_vlan_conf(hns);
2563         if (ret)
2564                 goto err_vlan_table;
2565
2566         ret = hns3vf_get_port_base_vlan_filter_state(hw);
2567         if (ret)
2568                 goto err_vlan_table;
2569
2570         ret = hns3vf_restore_rx_interrupt(hw);
2571         if (ret)
2572                 goto err_vlan_table;
2573
2574         ret = hns3_restore_gro_conf(hw);
2575         if (ret)
2576                 goto err_vlan_table;
2577
2578         if (hw->adapter_state == HNS3_NIC_STARTED) {
2579                 ret = hns3vf_do_start(hns, false);
2580                 if (ret)
2581                         goto err_vlan_table;
2582                 hns3_info(hw, "hns3vf dev restart successful!");
2583         } else if (hw->adapter_state == HNS3_NIC_STOPPING)
2584                 hw->adapter_state = HNS3_NIC_CONFIGURED;
2585         return 0;
2586
2587 err_vlan_table:
2588         hns3vf_configure_all_mc_mac_addr(hns, true);
2589 err_mc_mac:
2590         hns3vf_configure_mac_addr(hns, true);
2591         return ret;
2592 }
2593
2594 static enum hns3_reset_level
2595 hns3vf_get_reset_level(struct hns3_hw *hw, uint64_t *levels)
2596 {
2597         enum hns3_reset_level reset_level;
2598
2599         /* return the highest priority reset level amongst all */
2600         if (hns3_atomic_test_bit(HNS3_VF_RESET, levels))
2601                 reset_level = HNS3_VF_RESET;
2602         else if (hns3_atomic_test_bit(HNS3_VF_FULL_RESET, levels))
2603                 reset_level = HNS3_VF_FULL_RESET;
2604         else if (hns3_atomic_test_bit(HNS3_VF_PF_FUNC_RESET, levels))
2605                 reset_level = HNS3_VF_PF_FUNC_RESET;
2606         else if (hns3_atomic_test_bit(HNS3_VF_FUNC_RESET, levels))
2607                 reset_level = HNS3_VF_FUNC_RESET;
2608         else if (hns3_atomic_test_bit(HNS3_FLR_RESET, levels))
2609                 reset_level = HNS3_FLR_RESET;
2610         else
2611                 reset_level = HNS3_NONE_RESET;
2612
2613         if (hw->reset.level != HNS3_NONE_RESET && reset_level < hw->reset.level)
2614                 return HNS3_NONE_RESET;
2615
2616         return reset_level;
2617 }
2618
2619 static void
2620 hns3vf_reset_service(void *param)
2621 {
2622         struct hns3_adapter *hns = (struct hns3_adapter *)param;
2623         struct hns3_hw *hw = &hns->hw;
2624         enum hns3_reset_level reset_level;
2625         struct timeval tv_delta;
2626         struct timeval tv_start;
2627         struct timeval tv;
2628         uint64_t msec;
2629
2630         /*
2631          * The interrupt is not triggered within the delay time.
2632          * The interrupt may have been lost. It is necessary to handle
2633          * the interrupt to recover from the error.
2634          */
2635         if (__atomic_load_n(&hw->reset.schedule, __ATOMIC_RELAXED) ==
2636                             SCHEDULE_DEFERRED) {
2637                 __atomic_store_n(&hw->reset.schedule, SCHEDULE_REQUESTED,
2638                                  __ATOMIC_RELAXED);
2639                 hns3_err(hw, "Handling interrupts in delayed tasks");
2640                 hns3vf_interrupt_handler(&rte_eth_devices[hw->data->port_id]);
2641                 reset_level = hns3vf_get_reset_level(hw, &hw->reset.pending);
2642                 if (reset_level == HNS3_NONE_RESET) {
2643                         hns3_err(hw, "No reset level is set, try global reset");
2644                         hns3_atomic_set_bit(HNS3_VF_RESET, &hw->reset.pending);
2645                 }
2646         }
2647         __atomic_store_n(&hw->reset.schedule, SCHEDULE_NONE, __ATOMIC_RELAXED);
2648
2649         /*
2650          * Hardware reset has been notified, we now have to poll & check if
2651          * hardware has actually completed the reset sequence.
2652          */
2653         reset_level = hns3vf_get_reset_level(hw, &hw->reset.pending);
2654         if (reset_level != HNS3_NONE_RESET) {
2655                 gettimeofday(&tv_start, NULL);
2656                 hns3_reset_process(hns, reset_level);
2657                 gettimeofday(&tv, NULL);
2658                 timersub(&tv, &tv_start, &tv_delta);
2659                 msec = tv_delta.tv_sec * MSEC_PER_SEC +
2660                        tv_delta.tv_usec / USEC_PER_MSEC;
2661                 if (msec > HNS3_RESET_PROCESS_MS)
2662                         hns3_err(hw, "%d handle long time delta %" PRIx64
2663                                  " ms time=%ld.%.6ld",
2664                                  hw->reset.level, msec, tv.tv_sec, tv.tv_usec);
2665         }
2666 }
2667
2668 static int
2669 hns3vf_reinit_dev(struct hns3_adapter *hns)
2670 {
2671         struct rte_eth_dev *eth_dev = &rte_eth_devices[hns->hw.data->port_id];
2672         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
2673         struct hns3_hw *hw = &hns->hw;
2674         int ret;
2675
2676         if (hw->reset.level == HNS3_VF_FULL_RESET) {
2677                 rte_intr_disable(&pci_dev->intr_handle);
2678                 ret = hns3vf_set_bus_master(pci_dev, true);
2679                 if (ret < 0) {
2680                         hns3_err(hw, "failed to set pci bus, ret = %d", ret);
2681                         return ret;
2682                 }
2683         }
2684
2685         /* Firmware command initialize */
2686         ret = hns3_cmd_init(hw);
2687         if (ret) {
2688                 hns3_err(hw, "Failed to init cmd: %d", ret);
2689                 return ret;
2690         }
2691
2692         if (hw->reset.level == HNS3_VF_FULL_RESET) {
2693                 /*
2694                  * UIO enables msix by writing the pcie configuration space
2695                  * vfio_pci enables msix in rte_intr_enable.
2696                  */
2697                 if (pci_dev->kdrv == RTE_PCI_KDRV_IGB_UIO ||
2698                     pci_dev->kdrv == RTE_PCI_KDRV_UIO_GENERIC) {
2699                         if (hns3vf_enable_msix(pci_dev, true))
2700                                 hns3_err(hw, "Failed to enable msix");
2701                 }
2702
2703                 rte_intr_enable(&pci_dev->intr_handle);
2704         }
2705
2706         ret = hns3_reset_all_tqps(hns);
2707         if (ret) {
2708                 hns3_err(hw, "Failed to reset all queues: %d", ret);
2709                 return ret;
2710         }
2711
2712         ret = hns3vf_init_hardware(hns);
2713         if (ret) {
2714                 hns3_err(hw, "Failed to init hardware: %d", ret);
2715                 return ret;
2716         }
2717
2718         return 0;
2719 }
2720
2721 static const struct eth_dev_ops hns3vf_eth_dev_ops = {
2722         .dev_configure      = hns3vf_dev_configure,
2723         .dev_start          = hns3vf_dev_start,
2724         .dev_stop           = hns3vf_dev_stop,
2725         .dev_close          = hns3vf_dev_close,
2726         .mtu_set            = hns3vf_dev_mtu_set,
2727         .promiscuous_enable = hns3vf_dev_promiscuous_enable,
2728         .promiscuous_disable = hns3vf_dev_promiscuous_disable,
2729         .allmulticast_enable = hns3vf_dev_allmulticast_enable,
2730         .allmulticast_disable = hns3vf_dev_allmulticast_disable,
2731         .stats_get          = hns3_stats_get,
2732         .stats_reset        = hns3_stats_reset,
2733         .xstats_get         = hns3_dev_xstats_get,
2734         .xstats_get_names   = hns3_dev_xstats_get_names,
2735         .xstats_reset       = hns3_dev_xstats_reset,
2736         .xstats_get_by_id   = hns3_dev_xstats_get_by_id,
2737         .xstats_get_names_by_id = hns3_dev_xstats_get_names_by_id,
2738         .dev_infos_get      = hns3vf_dev_infos_get,
2739         .fw_version_get     = hns3vf_fw_version_get,
2740         .rx_queue_setup     = hns3_rx_queue_setup,
2741         .tx_queue_setup     = hns3_tx_queue_setup,
2742         .rx_queue_release   = hns3_dev_rx_queue_release,
2743         .tx_queue_release   = hns3_dev_tx_queue_release,
2744         .rx_queue_start     = hns3_dev_rx_queue_start,
2745         .rx_queue_stop      = hns3_dev_rx_queue_stop,
2746         .tx_queue_start     = hns3_dev_tx_queue_start,
2747         .tx_queue_stop      = hns3_dev_tx_queue_stop,
2748         .rx_queue_intr_enable   = hns3_dev_rx_queue_intr_enable,
2749         .rx_queue_intr_disable  = hns3_dev_rx_queue_intr_disable,
2750         .rxq_info_get       = hns3_rxq_info_get,
2751         .txq_info_get       = hns3_txq_info_get,
2752         .rx_burst_mode_get  = hns3_rx_burst_mode_get,
2753         .tx_burst_mode_get  = hns3_tx_burst_mode_get,
2754         .mac_addr_add       = hns3vf_add_mac_addr,
2755         .mac_addr_remove    = hns3vf_remove_mac_addr,
2756         .mac_addr_set       = hns3vf_set_default_mac_addr,
2757         .set_mc_addr_list   = hns3vf_set_mc_mac_addr_list,
2758         .link_update        = hns3vf_dev_link_update,
2759         .rss_hash_update    = hns3_dev_rss_hash_update,
2760         .rss_hash_conf_get  = hns3_dev_rss_hash_conf_get,
2761         .reta_update        = hns3_dev_rss_reta_update,
2762         .reta_query         = hns3_dev_rss_reta_query,
2763         .filter_ctrl        = hns3_dev_filter_ctrl,
2764         .vlan_filter_set    = hns3vf_vlan_filter_set,
2765         .vlan_offload_set   = hns3vf_vlan_offload_set,
2766         .get_reg            = hns3_get_regs,
2767         .dev_supported_ptypes_get = hns3_dev_supported_ptypes_get,
2768         .tx_done_cleanup    = hns3_tx_done_cleanup,
2769 };
2770
2771 static const struct hns3_reset_ops hns3vf_reset_ops = {
2772         .reset_service       = hns3vf_reset_service,
2773         .stop_service        = hns3vf_stop_service,
2774         .prepare_reset       = hns3vf_prepare_reset,
2775         .wait_hardware_ready = hns3vf_wait_hardware_ready,
2776         .reinit_dev          = hns3vf_reinit_dev,
2777         .restore_conf        = hns3vf_restore_conf,
2778         .start_service       = hns3vf_start_service,
2779 };
2780
2781 static int
2782 hns3vf_dev_init(struct rte_eth_dev *eth_dev)
2783 {
2784         struct hns3_adapter *hns = eth_dev->data->dev_private;
2785         struct hns3_hw *hw = &hns->hw;
2786         int ret;
2787
2788         PMD_INIT_FUNC_TRACE();
2789
2790         eth_dev->process_private = (struct hns3_process_private *)
2791             rte_zmalloc_socket("hns3_filter_list",
2792                                sizeof(struct hns3_process_private),
2793                                RTE_CACHE_LINE_SIZE, eth_dev->device->numa_node);
2794         if (eth_dev->process_private == NULL) {
2795                 PMD_INIT_LOG(ERR, "Failed to alloc memory for process private");
2796                 return -ENOMEM;
2797         }
2798
2799         /* initialize flow filter lists */
2800         hns3_filterlist_init(eth_dev);
2801
2802         hns3_set_rxtx_function(eth_dev);
2803         eth_dev->dev_ops = &hns3vf_eth_dev_ops;
2804         eth_dev->rx_queue_count = hns3_rx_queue_count;
2805         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
2806                 ret = hns3_mp_init_secondary();
2807                 if (ret) {
2808                         PMD_INIT_LOG(ERR, "Failed to init for secondary "
2809                                           "process, ret = %d", ret);
2810                         goto err_mp_init_secondary;
2811                 }
2812
2813                 hw->secondary_cnt++;
2814                 return 0;
2815         }
2816
2817         ret = hns3_mp_init_primary();
2818         if (ret) {
2819                 PMD_INIT_LOG(ERR,
2820                              "Failed to init for primary process, ret = %d",
2821                              ret);
2822                 goto err_mp_init_primary;
2823         }
2824
2825         hw->adapter_state = HNS3_NIC_UNINITIALIZED;
2826         hns->is_vf = true;
2827         hw->data = eth_dev->data;
2828
2829         ret = hns3_reset_init(hw);
2830         if (ret)
2831                 goto err_init_reset;
2832         hw->reset.ops = &hns3vf_reset_ops;
2833
2834         ret = hns3vf_init_vf(eth_dev);
2835         if (ret) {
2836                 PMD_INIT_LOG(ERR, "Failed to init vf: %d", ret);
2837                 goto err_init_vf;
2838         }
2839
2840         /* Allocate memory for storing MAC addresses */
2841         eth_dev->data->mac_addrs = rte_zmalloc("hns3vf-mac",
2842                                                sizeof(struct rte_ether_addr) *
2843                                                HNS3_VF_UC_MACADDR_NUM, 0);
2844         if (eth_dev->data->mac_addrs == NULL) {
2845                 PMD_INIT_LOG(ERR, "Failed to allocate %zx bytes needed "
2846                              "to store MAC addresses",
2847                              sizeof(struct rte_ether_addr) *
2848                              HNS3_VF_UC_MACADDR_NUM);
2849                 ret = -ENOMEM;
2850                 goto err_rte_zmalloc;
2851         }
2852
2853         /*
2854          * The hns3 PF ethdev driver in kernel support setting VF MAC address
2855          * on the host by "ip link set ..." command. To avoid some incorrect
2856          * scenes, for example, hns3 VF PMD driver fails to receive and send
2857          * packets after user configure the MAC address by using the
2858          * "ip link set ..." command, hns3 VF PMD driver keep the same MAC
2859          * address strategy as the hns3 kernel ethdev driver in the
2860          * initialization. If user configure a MAC address by the ip command
2861          * for VF device, then hns3 VF PMD driver will start with it, otherwise
2862          * start with a random MAC address in the initialization.
2863          */
2864         if (rte_is_zero_ether_addr((struct rte_ether_addr *)hw->mac.mac_addr))
2865                 rte_eth_random_addr(hw->mac.mac_addr);
2866         rte_ether_addr_copy((struct rte_ether_addr *)hw->mac.mac_addr,
2867                             &eth_dev->data->mac_addrs[0]);
2868
2869         hw->adapter_state = HNS3_NIC_INITIALIZED;
2870
2871         if (__atomic_load_n(&hw->reset.schedule, __ATOMIC_RELAXED) ==
2872                             SCHEDULE_PENDING) {
2873                 hns3_err(hw, "Reschedule reset service after dev_init");
2874                 hns3_schedule_reset(hns);
2875         } else {
2876                 /* IMP will wait ready flag before reset */
2877                 hns3_notify_reset_ready(hw, false);
2878         }
2879         rte_eal_alarm_set(HNS3VF_KEEP_ALIVE_INTERVAL, hns3vf_keep_alive_handler,
2880                           eth_dev);
2881         return 0;
2882
2883 err_rte_zmalloc:
2884         hns3vf_uninit_vf(eth_dev);
2885
2886 err_init_vf:
2887         rte_free(hw->reset.wait_data);
2888
2889 err_init_reset:
2890         hns3_mp_uninit_primary();
2891
2892 err_mp_init_primary:
2893 err_mp_init_secondary:
2894         eth_dev->dev_ops = NULL;
2895         eth_dev->rx_pkt_burst = NULL;
2896         eth_dev->tx_pkt_burst = NULL;
2897         eth_dev->tx_pkt_prepare = NULL;
2898         rte_free(eth_dev->process_private);
2899         eth_dev->process_private = NULL;
2900
2901         return ret;
2902 }
2903
2904 static int
2905 hns3vf_dev_uninit(struct rte_eth_dev *eth_dev)
2906 {
2907         struct hns3_adapter *hns = eth_dev->data->dev_private;
2908         struct hns3_hw *hw = &hns->hw;
2909
2910         PMD_INIT_FUNC_TRACE();
2911
2912         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
2913                 rte_free(eth_dev->process_private);
2914                 eth_dev->process_private = NULL;
2915                 return 0;
2916         }
2917
2918         if (hw->adapter_state < HNS3_NIC_CLOSING)
2919                 hns3vf_dev_close(eth_dev);
2920
2921         hw->adapter_state = HNS3_NIC_REMOVED;
2922         return 0;
2923 }
2924
2925 static int
2926 eth_hns3vf_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
2927                      struct rte_pci_device *pci_dev)
2928 {
2929         return rte_eth_dev_pci_generic_probe(pci_dev,
2930                                              sizeof(struct hns3_adapter),
2931                                              hns3vf_dev_init);
2932 }
2933
2934 static int
2935 eth_hns3vf_pci_remove(struct rte_pci_device *pci_dev)
2936 {
2937         return rte_eth_dev_pci_generic_remove(pci_dev, hns3vf_dev_uninit);
2938 }
2939
2940 static const struct rte_pci_id pci_id_hns3vf_map[] = {
2941         { RTE_PCI_DEVICE(PCI_VENDOR_ID_HUAWEI, HNS3_DEV_ID_100G_VF) },
2942         { RTE_PCI_DEVICE(PCI_VENDOR_ID_HUAWEI, HNS3_DEV_ID_100G_RDMA_PFC_VF) },
2943         { .vendor_id = 0, }, /* sentinel */
2944 };
2945
2946 static struct rte_pci_driver rte_hns3vf_pmd = {
2947         .id_table = pci_id_hns3vf_map,
2948         .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
2949         .probe = eth_hns3vf_pci_probe,
2950         .remove = eth_hns3vf_pci_remove,
2951 };
2952
2953 RTE_PMD_REGISTER_PCI(net_hns3_vf, rte_hns3vf_pmd);
2954 RTE_PMD_REGISTER_PCI_TABLE(net_hns3_vf, pci_id_hns3vf_map);
2955 RTE_PMD_REGISTER_KMOD_DEP(net_hns3_vf, "* igb_uio | vfio-pci");