drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 // Copyright (c) 2016-2017 Hisilicon Limited.
   3
   4 #include "hclge_main.h"
   5 #include "hclge_mbx.h"
   6 #include "hnae3.h"
   7
   8 #define CREATE_TRACE_POINTS
   9 #include "hclge_trace.h"
  10
  11 static u16 hclge_errno_to_resp(int errno)
  12 {
  13         return abs(errno);
  14 }
  15
  16 /* hclge_gen_resp_to_vf: used to generate a synchronous response to VF when PF
  17  * receives a mailbox message from VF.
  18  * @vport: pointer to struct hclge_vport
  19  * @vf_to_pf_req: pointer to hclge_mbx_vf_to_pf_cmd of the original mailbox
  20  *                message
  21  * @resp_status: indicate to VF whether its request success(0) or failed.
  22  */
  23 static int hclge_gen_resp_to_vf(struct hclge_vport *vport,
  24                                 struct hclge_mbx_vf_to_pf_cmd *vf_to_pf_req,
  25                                 struct hclge_respond_to_vf_msg *resp_msg)
  26 {
  27         struct hclge_mbx_pf_to_vf_cmd *resp_pf_to_vf;
  28         struct hclge_dev *hdev = vport->back;
  29         enum hclge_cmd_status status;
  30         struct hclge_desc desc;
  31         u16 resp;
  32
  33         resp_pf_to_vf = (struct hclge_mbx_pf_to_vf_cmd *)desc.data;
  34
  35         if (resp_msg->len > HCLGE_MBX_MAX_RESP_DATA_SIZE) {
  36                 dev_err(&hdev->pdev->dev,
  37                         "PF fail to gen resp to VF len %u exceeds max len %u\n",
  38                         resp_msg->len,
  39                         HCLGE_MBX_MAX_RESP_DATA_SIZE);
  40                 /* If resp_msg->len is too long, set the value to max length
  41                  * and return the msg to VF
  42                  */
  43                 resp_msg->len = HCLGE_MBX_MAX_RESP_DATA_SIZE;
  44         }
  45
  46         hclge_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_MBX_PF_TO_VF, false);
  47
  48         resp_pf_to_vf->dest_vfid = vf_to_pf_req->mbx_src_vfid;
  49         resp_pf_to_vf->msg_len = vf_to_pf_req->msg_len;
  50
  51         resp_pf_to_vf->msg.code = HCLGE_MBX_PF_VF_RESP;
  52         resp_pf_to_vf->msg.vf_mbx_msg_code = vf_to_pf_req->msg.code;
  53         resp_pf_to_vf->msg.vf_mbx_msg_subcode = vf_to_pf_req->msg.subcode;
  54         resp = hclge_errno_to_resp(resp_msg->status);
  55         if (resp < SHRT_MAX) {
  56                 resp_pf_to_vf->msg.resp_status = resp;
  57         } else {
  58                 dev_warn(&hdev->pdev->dev,
  59                          "failed to send response to VF, response status %u is out-of-bound\n",
  60                          resp);
  61                 resp_pf_to_vf->msg.resp_status = EIO;
  62         }
  63
  64         if (resp_msg->len > 0)
  65                 memcpy(resp_pf_to_vf->msg.resp_data, resp_msg->data,
  66                        resp_msg->len);
  67
  68         status = hclge_cmd_send(&hdev->hw, &desc, 1);
  69         if (status)
  70                 dev_err(&hdev->pdev->dev,
  71                         "failed to send response to VF, status: %d, vfid: %u, code: %u, subcode: %u.\n",
  72                         status, vf_to_pf_req->mbx_src_vfid,
  73                         vf_to_pf_req->msg.code, vf_to_pf_req->msg.subcode);
  74
  75         return status;
  76 }
  77
  78 static int hclge_send_mbx_msg(struct hclge_vport *vport, u8 *msg, u16 msg_len,
  79                               u16 mbx_opcode, u8 dest_vfid)
  80 {
  81         struct hclge_mbx_pf_to_vf_cmd *resp_pf_to_vf;
  82         struct hclge_dev *hdev = vport->back;
  83         enum hclge_cmd_status status;
  84         struct hclge_desc desc;
  85
  86         resp_pf_to_vf = (struct hclge_mbx_pf_to_vf_cmd *)desc.data;
  87
  88         hclge_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_MBX_PF_TO_VF, false);
  89
  90         resp_pf_to_vf->dest_vfid = dest_vfid;
  91         resp_pf_to_vf->msg_len = msg_len;
  92         resp_pf_to_vf->msg.code = mbx_opcode;
  93
  94         memcpy(&resp_pf_to_vf->msg.vf_mbx_msg_code, msg, msg_len);
  95
  96         trace_hclge_pf_mbx_send(hdev, resp_pf_to_vf);
  97
  98         status = hclge_cmd_send(&hdev->hw, &desc, 1);
  99         if (status)
 100                 dev_err(&hdev->pdev->dev,
 101                         "failed to send mailbox to VF, status: %d, vfid: %u, opcode: %u\n",
 102                         status, dest_vfid, mbx_opcode);
 103
 104         return status;
 105 }
 106
 107 int hclge_inform_reset_assert_to_vf(struct hclge_vport *vport)
 108 {
 109         struct hclge_dev *hdev = vport->back;
 110         u16 reset_type;
 111         u8 msg_data[2];
 112         u8 dest_vfid;
 113
 114         BUILD_BUG_ON(HNAE3_MAX_RESET > U16_MAX);
 115
 116         dest_vfid = (u8)vport->vport_id;
 117
 118         if (hdev->reset_type == HNAE3_FUNC_RESET)
 119                 reset_type = HNAE3_VF_PF_FUNC_RESET;
 120         else if (hdev->reset_type == HNAE3_FLR_RESET)
 121                 reset_type = HNAE3_VF_FULL_RESET;
 122         else
 123                 reset_type = HNAE3_VF_FUNC_RESET;
 124
 125         memcpy(&msg_data[0], &reset_type, sizeof(u16));
 126
 127         /* send this requested info to VF */
 128         return hclge_send_mbx_msg(vport, msg_data, sizeof(msg_data),
 129                                   HCLGE_MBX_ASSERTING_RESET, dest_vfid);
 130 }
 131
 132 static void hclge_free_vector_ring_chain(struct hnae3_ring_chain_node *head)
 133 {
 134         struct hnae3_ring_chain_node *chain_tmp, *chain;
 135
 136         chain = head->next;
 137
 138         while (chain) {
 139                 chain_tmp = chain->next;
 140                 kfree_sensitive(chain);
 141                 chain = chain_tmp;
 142         }
 143 }
 144
 145 /* hclge_get_ring_chain_from_mbx: get ring type & tqp id & int_gl idx
 146  * from mailbox message
 147  * msg[0]: opcode
 148  * msg[1]: <not relevant to this function>
 149  * msg[2]: ring_num
 150  * msg[3]: first ring type (TX|RX)
 151  * msg[4]: first tqp id
 152  * msg[5]: first int_gl idx
 153  * msg[6] ~ msg[14]: other ring type, tqp id and int_gl idx
 154  */
 155 static int hclge_get_ring_chain_from_mbx(
 156                         struct hclge_mbx_vf_to_pf_cmd *req,
 157                         struct hnae3_ring_chain_node *ring_chain,
 158                         struct hclge_vport *vport)
 159 {
 160         struct hnae3_ring_chain_node *cur_chain, *new_chain;
 161         struct hclge_dev *hdev = vport->back;
 162         int ring_num;
 163         int i;
 164
 165         ring_num = req->msg.ring_num;
 166
 167         if (ring_num > HCLGE_MBX_MAX_RING_CHAIN_PARAM_NUM)
 168                 return -ENOMEM;
 169
 170         for (i = 0; i < ring_num; i++) {
 171                 if (req->msg.param[i].tqp_index >= vport->nic.kinfo.rss_size) {
 172                         dev_err(&hdev->pdev->dev, "tqp index(%u) is out of range(0-%u)\n",
 173                                 req->msg.param[i].tqp_index,
 174                                 vport->nic.kinfo.rss_size - 1);
 175                         return -EINVAL;
 176                 }
 177         }
 178
 179         hnae3_set_bit(ring_chain->flag, HNAE3_RING_TYPE_B,
 180                       req->msg.param[0].ring_type);
 181         ring_chain->tqp_index =
 182                 hclge_get_queue_id(vport->nic.kinfo.tqp
 183                                    [req->msg.param[0].tqp_index]);
 184         hnae3_set_field(ring_chain->int_gl_idx, HNAE3_RING_GL_IDX_M,
 185                         HNAE3_RING_GL_IDX_S, req->msg.param[0].int_gl_index);
 186
 187         cur_chain = ring_chain;
 188
 189         for (i = 1; i < ring_num; i++) {
 190                 new_chain = kzalloc(sizeof(*new_chain), GFP_KERNEL);
 191                 if (!new_chain)
 192                         goto err;
 193
 194                 hnae3_set_bit(new_chain->flag, HNAE3_RING_TYPE_B,
 195                               req->msg.param[i].ring_type);
 196
 197                 new_chain->tqp_index =
 198                 hclge_get_queue_id(vport->nic.kinfo.tqp
 199                         [req->msg.param[i].tqp_index]);
 200
 201                 hnae3_set_field(new_chain->int_gl_idx, HNAE3_RING_GL_IDX_M,
 202                                 HNAE3_RING_GL_IDX_S,
 203                                 req->msg.param[i].int_gl_index);
 204
 205                 cur_chain->next = new_chain;
 206                 cur_chain = new_chain;
 207         }
 208
 209         return 0;
 210 err:
 211         hclge_free_vector_ring_chain(ring_chain);
 212         return -ENOMEM;
 213 }
 214
 215 static int hclge_map_unmap_ring_to_vf_vector(struct hclge_vport *vport, bool en,
 216                                              struct hclge_mbx_vf_to_pf_cmd *req)
 217 {
 218         struct hnae3_ring_chain_node ring_chain;
 219         int vector_id = req->msg.vector_id;
 220         int ret;
 221
 222         memset(&ring_chain, 0, sizeof(ring_chain));
 223         ret = hclge_get_ring_chain_from_mbx(req, &ring_chain, vport);
 224         if (ret)
 225                 return ret;
 226
 227         ret = hclge_bind_ring_with_vector(vport, vector_id, en, &ring_chain);
 228
 229         hclge_free_vector_ring_chain(&ring_chain);
 230
 231         return ret;
 232 }
 233
 234 static void hclge_set_vf_promisc_mode(struct hclge_vport *vport,
 235                                       struct hclge_mbx_vf_to_pf_cmd *req)
 236 {
 237         struct hnae3_handle *handle = &vport->nic;
 238         struct hclge_dev *hdev = vport->back;
 239
 240         vport->vf_info.request_uc_en = req->msg.en_uc;
 241         vport->vf_info.request_mc_en = req->msg.en_mc;
 242         vport->vf_info.request_bc_en = req->msg.en_bc;
 243
 244         if (req->msg.en_limit_promisc)
 245                 set_bit(HNAE3_PFLAG_LIMIT_PROMISC, &handle->priv_flags);
 246         else
 247                 clear_bit(HNAE3_PFLAG_LIMIT_PROMISC,
 248                           &handle->priv_flags);
 249
 250         set_bit(HCLGE_VPORT_STATE_PROMISC_CHANGE, &vport->state);
 251         hclge_task_schedule(hdev, 0);
 252 }
 253
 254 static int hclge_set_vf_uc_mac_addr(struct hclge_vport *vport,
 255                                     struct hclge_mbx_vf_to_pf_cmd *mbx_req)
 256 {
 257 #define HCLGE_MBX_VF_OLD_MAC_ADDR_OFFSET        6
 258
 259         const u8 *mac_addr = (const u8 *)(mbx_req->msg.data);
 260         struct hclge_dev *hdev = vport->back;
 261         int status;
 262
 263         if (mbx_req->msg.subcode == HCLGE_MBX_MAC_VLAN_UC_MODIFY) {
 264                 const u8 *old_addr = (const u8 *)
 265                 (&mbx_req->msg.data[HCLGE_MBX_VF_OLD_MAC_ADDR_OFFSET]);
 266
 267                 /* If VF MAC has been configured by the host then it
 268                  * cannot be overridden by the MAC specified by the VM.
 269                  */
 270                 if (!is_zero_ether_addr(vport->vf_info.mac) &&
 271                     !ether_addr_equal(mac_addr, vport->vf_info.mac))
 272                         return -EPERM;
 273
 274                 if (!is_valid_ether_addr(mac_addr))
 275                         return -EINVAL;
 276
 277                 spin_lock_bh(&vport->mac_list_lock);
 278                 status = hclge_update_mac_node_for_dev_addr(vport, old_addr,
 279                                                             mac_addr);
 280                 spin_unlock_bh(&vport->mac_list_lock);
 281                 hclge_task_schedule(hdev, 0);
 282         } else if (mbx_req->msg.subcode == HCLGE_MBX_MAC_VLAN_UC_ADD) {
 283                 status = hclge_update_mac_list(vport, HCLGE_MAC_TO_ADD,
 284                                                HCLGE_MAC_ADDR_UC, mac_addr);
 285         } else if (mbx_req->msg.subcode == HCLGE_MBX_MAC_VLAN_UC_REMOVE) {
 286                 status = hclge_update_mac_list(vport, HCLGE_MAC_TO_DEL,
 287                                                HCLGE_MAC_ADDR_UC, mac_addr);
 288         } else {
 289                 dev_err(&hdev->pdev->dev,
 290                         "failed to set unicast mac addr, unknown subcode %u\n",
 291                         mbx_req->msg.subcode);
 292                 return -EIO;
 293         }
 294
 295         return status;
 296 }
 297
 298 static int hclge_set_vf_mc_mac_addr(struct hclge_vport *vport,
 299                                     struct hclge_mbx_vf_to_pf_cmd *mbx_req)
 300 {
 301         const u8 *mac_addr = (const u8 *)(mbx_req->msg.data);
 302         struct hclge_dev *hdev = vport->back;
 303
 304         if (mbx_req->msg.subcode == HCLGE_MBX_MAC_VLAN_MC_ADD) {
 305                 hclge_update_mac_list(vport, HCLGE_MAC_TO_ADD,
 306                                       HCLGE_MAC_ADDR_MC, mac_addr);
 307         } else if (mbx_req->msg.subcode == HCLGE_MBX_MAC_VLAN_MC_REMOVE) {
 308                 hclge_update_mac_list(vport, HCLGE_MAC_TO_DEL,
 309                                       HCLGE_MAC_ADDR_MC, mac_addr);
 310         } else {
 311                 dev_err(&hdev->pdev->dev,
 312                         "failed to set mcast mac addr, unknown subcode %u\n",
 313                         mbx_req->msg.subcode);
 314                 return -EIO;
 315         }
 316
 317         return 0;
 318 }
 319
 320 int hclge_push_vf_port_base_vlan_info(struct hclge_vport *vport, u8 vfid,
 321                                       u16 state,
 322                                       struct hclge_vlan_info *vlan_info)
 323 {
 324 #define MSG_DATA_SIZE   8
 325
 326         u8 msg_data[MSG_DATA_SIZE];
 327
 328         memcpy(&msg_data[0], &state, sizeof(u16));
 329         memcpy(&msg_data[2], &vlan_info->vlan_proto, sizeof(u16));
 330         memcpy(&msg_data[4], &vlan_info->qos, sizeof(u16));
 331         memcpy(&msg_data[6], &vlan_info->vlan_tag, sizeof(u16));
 332
 333         return hclge_send_mbx_msg(vport, msg_data, sizeof(msg_data),
 334                                   HCLGE_MBX_PUSH_VLAN_INFO, vfid);
 335 }
 336
 337 static int hclge_set_vf_vlan_cfg(struct hclge_vport *vport,
 338                                  struct hclge_mbx_vf_to_pf_cmd *mbx_req,
 339                                  struct hclge_respond_to_vf_msg *resp_msg)
 340 {
 341 #define HCLGE_MBX_VLAN_STATE_OFFSET     0
 342 #define HCLGE_MBX_VLAN_INFO_OFFSET      2
 343
 344         struct hnae3_handle *handle = &vport->nic;
 345         struct hclge_dev *hdev = vport->back;
 346         struct hclge_vf_vlan_cfg *msg_cmd;
 347
 348         msg_cmd = (struct hclge_vf_vlan_cfg *)&mbx_req->msg;
 349         switch (msg_cmd->subcode) {
 350         case HCLGE_MBX_VLAN_FILTER:
 351                 return hclge_set_vlan_filter(handle,
 352                                              cpu_to_be16(msg_cmd->proto),
 353                                              msg_cmd->vlan, msg_cmd->is_kill);
 354         case HCLGE_MBX_VLAN_RX_OFF_CFG:
 355                 return hclge_en_hw_strip_rxvtag(handle, msg_cmd->enable);
 356         case HCLGE_MBX_GET_PORT_BASE_VLAN_STATE:
 357                 /* vf does not need to know about the port based VLAN state
 358                  * on device HNAE3_DEVICE_VERSION_V3. So always return disable
 359                  * on device HNAE3_DEVICE_VERSION_V3 if vf queries the port
 360                  * based VLAN state.
 361                  */
 362                 resp_msg->data[0] =
 363                         hdev->ae_dev->dev_version >= HNAE3_DEVICE_VERSION_V3 ?
 364                         HNAE3_PORT_BASE_VLAN_DISABLE :
 365                         vport->port_base_vlan_cfg.state;
 366                 resp_msg->len = sizeof(u8);
 367                 return 0;
 368         case HCLGE_MBX_ENABLE_VLAN_FILTER:
 369                 return hclge_enable_vport_vlan_filter(vport, msg_cmd->enable);
 370         default:
 371                 return 0;
 372         }
 373 }
 374
 375 static int hclge_set_vf_alive(struct hclge_vport *vport,
 376                               struct hclge_mbx_vf_to_pf_cmd *mbx_req)
 377 {
 378         bool alive = !!mbx_req->msg.data[0];
 379         int ret = 0;
 380
 381         if (alive)
 382                 ret = hclge_vport_start(vport);
 383         else
 384                 hclge_vport_stop(vport);
 385
 386         return ret;
 387 }
 388
 389 static void hclge_get_basic_info(struct hclge_vport *vport,
 390                                  struct hclge_respond_to_vf_msg *resp_msg)
 391 {
 392         struct hnae3_knic_private_info *kinfo = &vport->nic.kinfo;
 393         struct hnae3_ae_dev *ae_dev = vport->back->ae_dev;
 394         struct hclge_basic_info *basic_info;
 395         unsigned int i;
 396
 397         basic_info = (struct hclge_basic_info *)resp_msg->data;
 398         for (i = 0; i < kinfo->tc_info.num_tc; i++)
 399                 basic_info->hw_tc_map |= BIT(i);
 400
 401         if (test_bit(HNAE3_DEV_SUPPORT_VLAN_FLTR_MDF_B, ae_dev->caps))
 402                 hnae3_set_bit(basic_info->pf_caps,
 403                               HNAE3_PF_SUPPORT_VLAN_FLTR_MDF_B, 1);
 404
 405         resp_msg->len = HCLGE_MBX_MAX_RESP_DATA_SIZE;
 406 }
 407
 408 static void hclge_get_vf_queue_info(struct hclge_vport *vport,
 409                                     struct hclge_respond_to_vf_msg *resp_msg)
 410 {
 411 #define HCLGE_TQPS_RSS_INFO_LEN         6
 412 #define HCLGE_TQPS_ALLOC_OFFSET         0
 413 #define HCLGE_TQPS_RSS_SIZE_OFFSET      2
 414 #define HCLGE_TQPS_RX_BUFFER_LEN_OFFSET 4
 415
 416         struct hclge_dev *hdev = vport->back;
 417
 418         /* get the queue related info */
 419         memcpy(&resp_msg->data[HCLGE_TQPS_ALLOC_OFFSET],
 420                &vport->alloc_tqps, sizeof(u16));
 421         memcpy(&resp_msg->data[HCLGE_TQPS_RSS_SIZE_OFFSET],
 422                &vport->nic.kinfo.rss_size, sizeof(u16));
 423         memcpy(&resp_msg->data[HCLGE_TQPS_RX_BUFFER_LEN_OFFSET],
 424                &hdev->rx_buf_len, sizeof(u16));
 425         resp_msg->len = HCLGE_TQPS_RSS_INFO_LEN;
 426 }
 427
 428 static void hclge_get_vf_mac_addr(struct hclge_vport *vport,
 429                                   struct hclge_respond_to_vf_msg *resp_msg)
 430 {
 431         ether_addr_copy(resp_msg->data, vport->vf_info.mac);
 432         resp_msg->len = ETH_ALEN;
 433 }
 434
 435 static void hclge_get_vf_queue_depth(struct hclge_vport *vport,
 436                                      struct hclge_respond_to_vf_msg *resp_msg)
 437 {
 438 #define HCLGE_TQPS_DEPTH_INFO_LEN       4
 439 #define HCLGE_TQPS_NUM_TX_DESC_OFFSET   0
 440 #define HCLGE_TQPS_NUM_RX_DESC_OFFSET   2
 441
 442         struct hclge_dev *hdev = vport->back;
 443
 444         /* get the queue depth info */
 445         memcpy(&resp_msg->data[HCLGE_TQPS_NUM_TX_DESC_OFFSET],
 446                &hdev->num_tx_desc, sizeof(u16));
 447         memcpy(&resp_msg->data[HCLGE_TQPS_NUM_RX_DESC_OFFSET],
 448                &hdev->num_rx_desc, sizeof(u16));
 449         resp_msg->len = HCLGE_TQPS_DEPTH_INFO_LEN;
 450 }
 451
 452 static void hclge_get_vf_media_type(struct hclge_vport *vport,
 453                                     struct hclge_respond_to_vf_msg *resp_msg)
 454 {
 455 #define HCLGE_VF_MEDIA_TYPE_OFFSET      0
 456 #define HCLGE_VF_MODULE_TYPE_OFFSET     1
 457 #define HCLGE_VF_MEDIA_TYPE_LENGTH      2
 458
 459         struct hclge_dev *hdev = vport->back;
 460
 461         resp_msg->data[HCLGE_VF_MEDIA_TYPE_OFFSET] =
 462                 hdev->hw.mac.media_type;
 463         resp_msg->data[HCLGE_VF_MODULE_TYPE_OFFSET] =
 464                 hdev->hw.mac.module_type;
 465         resp_msg->len = HCLGE_VF_MEDIA_TYPE_LENGTH;
 466 }
 467
 468 int hclge_push_vf_link_status(struct hclge_vport *vport)
 469 {
 470 #define HCLGE_VF_LINK_STATE_UP          1U
 471 #define HCLGE_VF_LINK_STATE_DOWN        0U
 472
 473         struct hclge_dev *hdev = vport->back;
 474         u16 link_status;
 475         u8 msg_data[9];
 476         u16 duplex;
 477
 478         /* mac.link can only be 0 or 1 */
 479         switch (vport->vf_info.link_state) {
 480         case IFLA_VF_LINK_STATE_ENABLE:
 481                 link_status = HCLGE_VF_LINK_STATE_UP;
 482                 break;
 483         case IFLA_VF_LINK_STATE_DISABLE:
 484                 link_status = HCLGE_VF_LINK_STATE_DOWN;
 485                 break;
 486         case IFLA_VF_LINK_STATE_AUTO:
 487         default:
 488                 link_status = (u16)hdev->hw.mac.link;
 489                 break;
 490         }
 491
 492         duplex = hdev->hw.mac.duplex;
 493         memcpy(&msg_data[0], &link_status, sizeof(u16));
 494         memcpy(&msg_data[2], &hdev->hw.mac.speed, sizeof(u32));
 495         memcpy(&msg_data[6], &duplex, sizeof(u16));
 496         msg_data[8] = HCLGE_MBX_PUSH_LINK_STATUS_EN;
 497
 498         /* send this requested info to VF */
 499         return hclge_send_mbx_msg(vport, msg_data, sizeof(msg_data),
 500                                   HCLGE_MBX_LINK_STAT_CHANGE, vport->vport_id);
 501 }
 502
 503 static void hclge_get_link_mode(struct hclge_vport *vport,
 504                                 struct hclge_mbx_vf_to_pf_cmd *mbx_req)
 505 {
 506 #define HCLGE_SUPPORTED   1
 507         struct hclge_dev *hdev = vport->back;
 508         unsigned long advertising;
 509         unsigned long supported;
 510         unsigned long send_data;
 511         u8 msg_data[10] = {};
 512         u8 dest_vfid;
 513
 514         advertising = hdev->hw.mac.advertising[0];
 515         supported = hdev->hw.mac.supported[0];
 516         dest_vfid = mbx_req->mbx_src_vfid;
 517         msg_data[0] = mbx_req->msg.data[0];
 518
 519         send_data = msg_data[0] == HCLGE_SUPPORTED ? supported : advertising;
 520
 521         memcpy(&msg_data[2], &send_data, sizeof(unsigned long));
 522         hclge_send_mbx_msg(vport, msg_data, sizeof(msg_data),
 523                            HCLGE_MBX_LINK_STAT_MODE, dest_vfid);
 524 }
 525
 526 static int hclge_mbx_reset_vf_queue(struct hclge_vport *vport,
 527                                     struct hclge_mbx_vf_to_pf_cmd *mbx_req,
 528                                     struct hclge_respond_to_vf_msg *resp_msg)
 529 {
 530 #define HCLGE_RESET_ALL_QUEUE_DONE      1U
 531         struct hnae3_handle *handle = &vport->nic;
 532         struct hclge_dev *hdev = vport->back;
 533         u16 queue_id;
 534         int ret;
 535
 536         memcpy(&queue_id, mbx_req->msg.data, sizeof(queue_id));
 537         resp_msg->data[0] = HCLGE_RESET_ALL_QUEUE_DONE;
 538         resp_msg->len = sizeof(u8);
 539
 540         /* pf will reset vf's all queues at a time. So it is unnecessary
 541          * to reset queues if queue_id > 0, just return success.
 542          */
 543         if (queue_id > 0)
 544                 return 0;
 545
 546         ret = hclge_reset_tqp(handle);
 547         if (ret)
 548                 dev_err(&hdev->pdev->dev, "failed to reset vf %u queue, ret = %d\n",
 549                         vport->vport_id - HCLGE_VF_VPORT_START_NUM, ret);
 550
 551         return ret;
 552 }
 553
 554 static int hclge_reset_vf(struct hclge_vport *vport)
 555 {
 556         struct hclge_dev *hdev = vport->back;
 557
 558         dev_warn(&hdev->pdev->dev, "PF received VF reset request from VF %u!",
 559                  vport->vport_id);
 560
 561         return hclge_func_reset_cmd(hdev, vport->vport_id);
 562 }
 563
 564 static void hclge_vf_keep_alive(struct hclge_vport *vport)
 565 {
 566         vport->last_active_jiffies = jiffies;
 567 }
 568
 569 static int hclge_set_vf_mtu(struct hclge_vport *vport,
 570                             struct hclge_mbx_vf_to_pf_cmd *mbx_req)
 571 {
 572         u32 mtu;
 573
 574         memcpy(&mtu, mbx_req->msg.data, sizeof(mtu));
 575
 576         return hclge_set_vport_mtu(vport, mtu);
 577 }
 578
 579 static void hclge_get_queue_id_in_pf(struct hclge_vport *vport,
 580                                      struct hclge_mbx_vf_to_pf_cmd *mbx_req,
 581                                      struct hclge_respond_to_vf_msg *resp_msg)
 582 {
 583         u16 queue_id, qid_in_pf;
 584
 585         memcpy(&queue_id, mbx_req->msg.data, sizeof(queue_id));
 586         qid_in_pf = hclge_covert_handle_qid_global(&vport->nic, queue_id);
 587         memcpy(resp_msg->data, &qid_in_pf, sizeof(qid_in_pf));
 588         resp_msg->len = sizeof(qid_in_pf);
 589 }
 590
 591 static void hclge_get_rss_key(struct hclge_vport *vport,
 592                               struct hclge_mbx_vf_to_pf_cmd *mbx_req,
 593                               struct hclge_respond_to_vf_msg *resp_msg)
 594 {
 595 #define HCLGE_RSS_MBX_RESP_LEN  8
 596         struct hclge_dev *hdev = vport->back;
 597         u8 index;
 598
 599         index = mbx_req->msg.data[0];
 600
 601         /* Check the query index of rss_hash_key from VF, make sure no
 602          * more than the size of rss_hash_key.
 603          */
 604         if (((index + 1) * HCLGE_RSS_MBX_RESP_LEN) >
 605               sizeof(vport[0].rss_hash_key)) {
 606                 dev_warn(&hdev->pdev->dev,
 607                          "failed to get the rss hash key, the index(%u) invalid !\n",
 608                          index);
 609                 return;
 610         }
 611
 612         memcpy(resp_msg->data,
 613                &hdev->vport[0].rss_hash_key[index * HCLGE_RSS_MBX_RESP_LEN],
 614                HCLGE_RSS_MBX_RESP_LEN);
 615         resp_msg->len = HCLGE_RSS_MBX_RESP_LEN;
 616 }
 617
 618 static void hclge_link_fail_parse(struct hclge_dev *hdev, u8 link_fail_code)
 619 {
 620         switch (link_fail_code) {
 621         case HCLGE_LF_REF_CLOCK_LOST:
 622                 dev_warn(&hdev->pdev->dev, "Reference clock lost!\n");
 623                 break;
 624         case HCLGE_LF_XSFP_TX_DISABLE:
 625                 dev_warn(&hdev->pdev->dev, "SFP tx is disabled!\n");
 626                 break;
 627         case HCLGE_LF_XSFP_ABSENT:
 628                 dev_warn(&hdev->pdev->dev, "SFP is absent!\n");
 629                 break;
 630         default:
 631                 break;
 632         }
 633 }
 634
 635 static void hclge_handle_link_change_event(struct hclge_dev *hdev,
 636                                            struct hclge_mbx_vf_to_pf_cmd *req)
 637 {
 638         hclge_task_schedule(hdev, 0);
 639
 640         if (!req->msg.subcode)
 641                 hclge_link_fail_parse(hdev, req->msg.data[0]);
 642 }
 643
 644 static bool hclge_cmd_crq_empty(struct hclge_hw *hw)
 645 {
 646         u32 tail = hclge_read_dev(hw, HCLGE_NIC_CRQ_TAIL_REG);
 647
 648         return tail == hw->cmq.crq.next_to_use;
 649 }
 650
 651 static void hclge_handle_ncsi_error(struct hclge_dev *hdev)
 652 {
 653         struct hnae3_ae_dev *ae_dev = hdev->ae_dev;
 654
 655         ae_dev->ops->set_default_reset_request(ae_dev, HNAE3_GLOBAL_RESET);
 656         dev_warn(&hdev->pdev->dev, "requesting reset due to NCSI error\n");
 657         ae_dev->ops->reset_event(hdev->pdev, NULL);
 658 }
 659
 660 static void hclge_handle_vf_tbl(struct hclge_vport *vport,
 661                                 struct hclge_mbx_vf_to_pf_cmd *mbx_req)
 662 {
 663         struct hclge_dev *hdev = vport->back;
 664         struct hclge_vf_vlan_cfg *msg_cmd;
 665
 666         msg_cmd = (struct hclge_vf_vlan_cfg *)&mbx_req->msg;
 667         if (msg_cmd->subcode == HCLGE_MBX_VPORT_LIST_CLEAR) {
 668                 hclge_rm_vport_all_mac_table(vport, true, HCLGE_MAC_ADDR_UC);
 669                 hclge_rm_vport_all_mac_table(vport, true, HCLGE_MAC_ADDR_MC);
 670                 hclge_rm_vport_all_vlan_table(vport, true);
 671         } else {
 672                 dev_warn(&hdev->pdev->dev, "Invalid cmd(%u)\n",
 673                          msg_cmd->subcode);
 674         }
 675 }
 676
 677 void hclge_mbx_handler(struct hclge_dev *hdev)
 678 {
 679         struct hclge_cmq_ring *crq = &hdev->hw.cmq.crq;
 680         struct hclge_respond_to_vf_msg resp_msg;
 681         struct hclge_mbx_vf_to_pf_cmd *req;
 682         struct hclge_vport *vport;
 683         struct hclge_desc *desc;
 684         bool is_del = false;
 685         unsigned int flag;
 686         int ret = 0;
 687
 688         /* handle all the mailbox requests in the queue */
 689         while (!hclge_cmd_crq_empty(&hdev->hw)) {
 690                 if (test_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state)) {
 691                         dev_warn(&hdev->pdev->dev,
 692                                  "command queue needs re-initializing\n");
 693                         return;
 694                 }
 695
 696                 desc = &crq->desc[crq->next_to_use];
 697                 req = (struct hclge_mbx_vf_to_pf_cmd *)desc->data;
 698
 699                 flag = le16_to_cpu(crq->desc[crq->next_to_use].flag);
 700                 if (unlikely(!hnae3_get_bit(flag, HCLGE_CMDQ_RX_OUTVLD_B))) {
 701                         dev_warn(&hdev->pdev->dev,
 702                                  "dropped invalid mailbox message, code = %u\n",
 703                                  req->msg.code);
 704
 705                         /* dropping/not processing this invalid message */
 706                         crq->desc[crq->next_to_use].flag = 0;
 707                         hclge_mbx_ring_ptr_move_crq(crq);
 708                         continue;
 709                 }
 710
 711                 vport = &hdev->vport[req->mbx_src_vfid];
 712
 713                 trace_hclge_pf_mbx_get(hdev, req);
 714
 715                 /* clear the resp_msg before processing every mailbox message */
 716                 memset(&resp_msg, 0, sizeof(resp_msg));
 717
 718                 switch (req->msg.code) {
 719                 case HCLGE_MBX_MAP_RING_TO_VECTOR:
 720                         ret = hclge_map_unmap_ring_to_vf_vector(vport, true,
 721                                                                 req);
 722                         break;
 723                 case HCLGE_MBX_UNMAP_RING_TO_VECTOR:
 724                         ret = hclge_map_unmap_ring_to_vf_vector(vport, false,
 725                                                                 req);
 726                         break;
 727                 case HCLGE_MBX_SET_PROMISC_MODE:
 728                         hclge_set_vf_promisc_mode(vport, req);
 729                         break;
 730                 case HCLGE_MBX_SET_UNICAST:
 731                         ret = hclge_set_vf_uc_mac_addr(vport, req);
 732                         if (ret)
 733                                 dev_err(&hdev->pdev->dev,
 734                                         "PF fail(%d) to set VF UC MAC Addr\n",
 735                                         ret);
 736                         break;
 737                 case HCLGE_MBX_SET_MULTICAST:
 738                         ret = hclge_set_vf_mc_mac_addr(vport, req);
 739                         if (ret)
 740                                 dev_err(&hdev->pdev->dev,
 741                                         "PF fail(%d) to set VF MC MAC Addr\n",
 742                                         ret);
 743                         break;
 744                 case HCLGE_MBX_SET_VLAN:
 745                         ret = hclge_set_vf_vlan_cfg(vport, req, &resp_msg);
 746                         if (ret)
 747                                 dev_err(&hdev->pdev->dev,
 748                                         "PF failed(%d) to config VF's VLAN\n",
 749                                         ret);
 750                         break;
 751                 case HCLGE_MBX_SET_ALIVE:
 752                         ret = hclge_set_vf_alive(vport, req);
 753                         if (ret)
 754                                 dev_err(&hdev->pdev->dev,
 755                                         "PF failed(%d) to set VF's ALIVE\n",
 756                                         ret);
 757                         break;
 758                 case HCLGE_MBX_GET_QINFO:
 759                         hclge_get_vf_queue_info(vport, &resp_msg);
 760                         break;
 761                 case HCLGE_MBX_GET_QDEPTH:
 762                         hclge_get_vf_queue_depth(vport, &resp_msg);
 763                         break;
 764                 case HCLGE_MBX_GET_BASIC_INFO:
 765                         hclge_get_basic_info(vport, &resp_msg);
 766                         break;
 767                 case HCLGE_MBX_GET_LINK_STATUS:
 768                         ret = hclge_push_vf_link_status(vport);
 769                         if (ret)
 770                                 dev_err(&hdev->pdev->dev,
 771                                         "failed to inform link stat to VF, ret = %d\n",
 772                                         ret);
 773                         break;
 774                 case HCLGE_MBX_QUEUE_RESET:
 775                         ret = hclge_mbx_reset_vf_queue(vport, req, &resp_msg);
 776                         break;
 777                 case HCLGE_MBX_RESET:
 778                         ret = hclge_reset_vf(vport);
 779                         break;
 780                 case HCLGE_MBX_KEEP_ALIVE:
 781                         hclge_vf_keep_alive(vport);
 782                         break;
 783                 case HCLGE_MBX_SET_MTU:
 784                         ret = hclge_set_vf_mtu(vport, req);
 785                         if (ret)
 786                                 dev_err(&hdev->pdev->dev,
 787                                         "VF fail(%d) to set mtu\n", ret);
 788                         break;
 789                 case HCLGE_MBX_GET_QID_IN_PF:
 790                         hclge_get_queue_id_in_pf(vport, req, &resp_msg);
 791                         break;
 792                 case HCLGE_MBX_GET_RSS_KEY:
 793                         hclge_get_rss_key(vport, req, &resp_msg);
 794                         break;
 795                 case HCLGE_MBX_GET_LINK_MODE:
 796                         hclge_get_link_mode(vport, req);
 797                         break;
 798                 case HCLGE_MBX_GET_VF_FLR_STATUS:
 799                 case HCLGE_MBX_VF_UNINIT:
 800                         is_del = req->msg.code == HCLGE_MBX_VF_UNINIT;
 801                         hclge_rm_vport_all_mac_table(vport, is_del,
 802                                                      HCLGE_MAC_ADDR_UC);
 803                         hclge_rm_vport_all_mac_table(vport, is_del,
 804                                                      HCLGE_MAC_ADDR_MC);
 805                         hclge_rm_vport_all_vlan_table(vport, is_del);
 806                         break;
 807                 case HCLGE_MBX_GET_MEDIA_TYPE:
 808                         hclge_get_vf_media_type(vport, &resp_msg);
 809                         break;
 810                 case HCLGE_MBX_PUSH_LINK_STATUS:
 811                         hclge_handle_link_change_event(hdev, req);
 812                         break;
 813                 case HCLGE_MBX_GET_MAC_ADDR:
 814                         hclge_get_vf_mac_addr(vport, &resp_msg);
 815                         break;
 816                 case HCLGE_MBX_NCSI_ERROR:
 817                         hclge_handle_ncsi_error(hdev);
 818                         break;
 819                 case HCLGE_MBX_HANDLE_VF_TBL:
 820                         hclge_handle_vf_tbl(vport, req);
 821                         break;
 822                 default:
 823                         dev_err(&hdev->pdev->dev,
 824                                 "un-supported mailbox message, code = %u\n",
 825                                 req->msg.code);
 826                         break;
 827                 }
 828
 829                 /* PF driver should not reply IMP */
 830                 if (hnae3_get_bit(req->mbx_need_resp, HCLGE_MBX_NEED_RESP_B) &&
 831                     req->msg.code < HCLGE_MBX_GET_VF_FLR_STATUS) {
 832                         resp_msg.status = ret;
 833                         hclge_gen_resp_to_vf(vport, req, &resp_msg);
 834                 }
 835
 836                 crq->desc[crq->next_to_use].flag = 0;
 837                 hclge_mbx_ring_ptr_move_crq(crq);
 838
 839                 /* reinitialize ret after complete the mbx message processing */
 840                 ret = 0;
 841         }
 842
 843         /* Write back CMDQ_RQ header pointer, M7 need this pointer */
 844         hclge_write_dev(&hdev->hw, HCLGE_NIC_CRQ_HEAD_REG, crq->next_to_use);
 845 }