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 /* hclge_gen_resp_to_vf: used to generate a synchronous response to VF when PF
   9  * receives a mailbox message from VF.
  10  * @vport: pointer to struct hclge_vport
  11  * @vf_to_pf_req: pointer to hclge_mbx_vf_to_pf_cmd of the original mailbox
  12  *                message
  13  * @resp_status: indicate to VF whether its request success(0) or failed.
  14  */
  15 static int hclge_gen_resp_to_vf(struct hclge_vport *vport,
  16                                 struct hclge_mbx_vf_to_pf_cmd *vf_to_pf_req,
  17                                 int resp_status,
  18                                 u8 *resp_data, u16 resp_data_len)
  19 {
  20         struct hclge_mbx_pf_to_vf_cmd *resp_pf_to_vf;
  21         struct hclge_dev *hdev = vport->back;
  22         enum hclge_cmd_status status;
  23         struct hclge_desc desc;
  24
  25         resp_pf_to_vf = (struct hclge_mbx_pf_to_vf_cmd *)desc.data;
  26
  27         if (resp_data_len > HCLGE_MBX_MAX_RESP_DATA_SIZE) {
  28                 dev_err(&hdev->pdev->dev,
  29                         "PF fail to gen resp to VF len %d exceeds max len %d\n",
  30                         resp_data_len,
  31                         HCLGE_MBX_MAX_RESP_DATA_SIZE);
  32         }
  33
  34         hclge_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_MBX_PF_TO_VF, false);
  35
  36         resp_pf_to_vf->dest_vfid = vf_to_pf_req->mbx_src_vfid;
  37         resp_pf_to_vf->msg_len = vf_to_pf_req->msg_len;
  38
  39         resp_pf_to_vf->msg[0] = HCLGE_MBX_PF_VF_RESP;
  40         resp_pf_to_vf->msg[1] = vf_to_pf_req->msg[0];
  41         resp_pf_to_vf->msg[2] = vf_to_pf_req->msg[1];
  42         resp_pf_to_vf->msg[3] = (resp_status == 0) ? 0 : 1;
  43
  44         if (resp_data && resp_data_len > 0)
  45                 memcpy(&resp_pf_to_vf->msg[4], resp_data, resp_data_len);
  46
  47         status = hclge_cmd_send(&hdev->hw, &desc, 1);
  48         if (status)
  49                 dev_err(&hdev->pdev->dev,
  50                         "PF failed(=%d) to send response to VF\n", status);
  51
  52         return status;
  53 }
  54
  55 static int hclge_send_mbx_msg(struct hclge_vport *vport, u8 *msg, u16 msg_len,
  56                               u16 mbx_opcode, u8 dest_vfid)
  57 {
  58         struct hclge_mbx_pf_to_vf_cmd *resp_pf_to_vf;
  59         struct hclge_dev *hdev = vport->back;
  60         enum hclge_cmd_status status;
  61         struct hclge_desc desc;
  62
  63         resp_pf_to_vf = (struct hclge_mbx_pf_to_vf_cmd *)desc.data;
  64
  65         hclge_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_MBX_PF_TO_VF, false);
  66
  67         resp_pf_to_vf->dest_vfid = dest_vfid;
  68         resp_pf_to_vf->msg_len = msg_len;
  69         resp_pf_to_vf->msg[0] = mbx_opcode;
  70
  71         memcpy(&resp_pf_to_vf->msg[1], msg, msg_len);
  72
  73         status = hclge_cmd_send(&hdev->hw, &desc, 1);
  74         if (status)
  75                 dev_err(&hdev->pdev->dev,
  76                         "PF failed(=%d) to send mailbox message to VF\n",
  77                         status);
  78
  79         return status;
  80 }
  81
  82 int hclge_inform_reset_assert_to_vf(struct hclge_vport *vport)
  83 {
  84         struct hclge_dev *hdev = vport->back;
  85         enum hnae3_reset_type reset_type;
  86         u8 msg_data[2];
  87         u8 dest_vfid;
  88
  89         dest_vfid = (u8)vport->vport_id;
  90
  91         if (hdev->reset_type == HNAE3_FUNC_RESET)
  92                 reset_type = HNAE3_VF_PF_FUNC_RESET;
  93         else if (hdev->reset_type == HNAE3_FLR_RESET)
  94                 reset_type = HNAE3_VF_FULL_RESET;
  95         else
  96                 return -EINVAL;
  97
  98         memcpy(&msg_data[0], &reset_type, sizeof(u16));
  99
 100         /* send this requested info to VF */
 101         return hclge_send_mbx_msg(vport, msg_data, sizeof(msg_data),
 102                                   HCLGE_MBX_ASSERTING_RESET, dest_vfid);
 103 }
 104
 105 static void hclge_free_vector_ring_chain(struct hnae3_ring_chain_node *head)
 106 {
 107         struct hnae3_ring_chain_node *chain_tmp, *chain;
 108
 109         chain = head->next;
 110
 111         while (chain) {
 112                 chain_tmp = chain->next;
 113                 kzfree(chain);
 114                 chain = chain_tmp;
 115         }
 116 }
 117
 118 /* hclge_get_ring_chain_from_mbx: get ring type & tqp id & int_gl idx
 119  * from mailbox message
 120  * msg[0]: opcode
 121  * msg[1]: <not relevant to this function>
 122  * msg[2]: ring_num
 123  * msg[3]: first ring type (TX|RX)
 124  * msg[4]: first tqp id
 125  * msg[5]: first int_gl idx
 126  * msg[6] ~ msg[14]: other ring type, tqp id and int_gl idx
 127  */
 128 static int hclge_get_ring_chain_from_mbx(
 129                         struct hclge_mbx_vf_to_pf_cmd *req,
 130                         struct hnae3_ring_chain_node *ring_chain,
 131                         struct hclge_vport *vport)
 132 {
 133         struct hnae3_ring_chain_node *cur_chain, *new_chain;
 134         int ring_num;
 135         int i;
 136
 137         ring_num = req->msg[2];
 138
 139         if (ring_num > ((HCLGE_MBX_VF_MSG_DATA_NUM -
 140                 HCLGE_MBX_RING_MAP_BASIC_MSG_NUM) /
 141                 HCLGE_MBX_RING_NODE_VARIABLE_NUM))
 142                 return -ENOMEM;
 143
 144         hnae3_set_bit(ring_chain->flag, HNAE3_RING_TYPE_B, req->msg[3]);
 145         ring_chain->tqp_index =
 146                         hclge_get_queue_id(vport->nic.kinfo.tqp[req->msg[4]]);
 147         hnae3_set_field(ring_chain->int_gl_idx, HNAE3_RING_GL_IDX_M,
 148                         HNAE3_RING_GL_IDX_S,
 149                         req->msg[5]);
 150
 151         cur_chain = ring_chain;
 152
 153         for (i = 1; i < ring_num; i++) {
 154                 new_chain = kzalloc(sizeof(*new_chain), GFP_KERNEL);
 155                 if (!new_chain)
 156                         goto err;
 157
 158                 hnae3_set_bit(new_chain->flag, HNAE3_RING_TYPE_B,
 159                               req->msg[HCLGE_MBX_RING_NODE_VARIABLE_NUM * i +
 160                               HCLGE_MBX_RING_MAP_BASIC_MSG_NUM]);
 161
 162                 new_chain->tqp_index =
 163                 hclge_get_queue_id(vport->nic.kinfo.tqp
 164                         [req->msg[HCLGE_MBX_RING_NODE_VARIABLE_NUM * i +
 165                         HCLGE_MBX_RING_MAP_BASIC_MSG_NUM + 1]]);
 166
 167                 hnae3_set_field(new_chain->int_gl_idx, HNAE3_RING_GL_IDX_M,
 168                                 HNAE3_RING_GL_IDX_S,
 169                                 req->msg[HCLGE_MBX_RING_NODE_VARIABLE_NUM * i +
 170                                 HCLGE_MBX_RING_MAP_BASIC_MSG_NUM + 2]);
 171
 172                 cur_chain->next = new_chain;
 173                 cur_chain = new_chain;
 174         }
 175
 176         return 0;
 177 err:
 178         hclge_free_vector_ring_chain(ring_chain);
 179         return -ENOMEM;
 180 }
 181
 182 static int hclge_map_unmap_ring_to_vf_vector(struct hclge_vport *vport, bool en,
 183                                              struct hclge_mbx_vf_to_pf_cmd *req)
 184 {
 185         struct hnae3_ring_chain_node ring_chain;
 186         int vector_id = req->msg[1];
 187         int ret;
 188
 189         memset(&ring_chain, 0, sizeof(ring_chain));
 190         ret = hclge_get_ring_chain_from_mbx(req, &ring_chain, vport);
 191         if (ret)
 192                 return ret;
 193
 194         ret = hclge_bind_ring_with_vector(vport, vector_id, en, &ring_chain);
 195         if (ret)
 196                 return ret;
 197
 198         hclge_free_vector_ring_chain(&ring_chain);
 199
 200         return 0;
 201 }
 202
 203 static int hclge_set_vf_promisc_mode(struct hclge_vport *vport,
 204                                      struct hclge_mbx_vf_to_pf_cmd *req)
 205 {
 206         bool en_bc = req->msg[1] ? true : false;
 207         struct hclge_promisc_param param;
 208
 209         /* vf is not allowed to enable unicast/multicast broadcast */
 210         hclge_promisc_param_init(&param, false, false, en_bc, vport->vport_id);
 211         return hclge_cmd_set_promisc_mode(vport->back, &param);
 212 }
 213
 214 static int hclge_set_vf_uc_mac_addr(struct hclge_vport *vport,
 215                                     struct hclge_mbx_vf_to_pf_cmd *mbx_req,
 216                                     bool gen_resp)
 217 {
 218         const u8 *mac_addr = (const u8 *)(&mbx_req->msg[2]);
 219         struct hclge_dev *hdev = vport->back;
 220         int status;
 221
 222         if (mbx_req->msg[1] == HCLGE_MBX_MAC_VLAN_UC_MODIFY) {
 223                 const u8 *old_addr = (const u8 *)(&mbx_req->msg[8]);
 224
 225                 hclge_rm_uc_addr_common(vport, old_addr);
 226                 status = hclge_add_uc_addr_common(vport, mac_addr);
 227                 if (status)
 228                         hclge_add_uc_addr_common(vport, old_addr);
 229         } else if (mbx_req->msg[1] == HCLGE_MBX_MAC_VLAN_UC_ADD) {
 230                 status = hclge_add_uc_addr_common(vport, mac_addr);
 231         } else if (mbx_req->msg[1] == HCLGE_MBX_MAC_VLAN_UC_REMOVE) {
 232                 status = hclge_rm_uc_addr_common(vport, mac_addr);
 233         } else {
 234                 dev_err(&hdev->pdev->dev,
 235                         "failed to set unicast mac addr, unknown subcode %d\n",
 236                         mbx_req->msg[1]);
 237                 return -EIO;
 238         }
 239
 240         if (gen_resp)
 241                 hclge_gen_resp_to_vf(vport, mbx_req, status, NULL, 0);
 242
 243         return 0;
 244 }
 245
 246 static int hclge_set_vf_mc_mac_addr(struct hclge_vport *vport,
 247                                     struct hclge_mbx_vf_to_pf_cmd *mbx_req,
 248                                     bool gen_resp)
 249 {
 250         const u8 *mac_addr = (const u8 *)(&mbx_req->msg[2]);
 251         struct hclge_dev *hdev = vport->back;
 252         u8 resp_len = 0;
 253         u8 resp_data;
 254         int status;
 255
 256         if (mbx_req->msg[1] == HCLGE_MBX_MAC_VLAN_MC_ADD) {
 257                 status = hclge_add_mc_addr_common(vport, mac_addr);
 258         } else if (mbx_req->msg[1] == HCLGE_MBX_MAC_VLAN_MC_REMOVE) {
 259                 status = hclge_rm_mc_addr_common(vport, mac_addr);
 260         } else {
 261                 dev_err(&hdev->pdev->dev,
 262                         "failed to set mcast mac addr, unknown subcode %d\n",
 263                         mbx_req->msg[1]);
 264                 return -EIO;
 265         }
 266
 267         if (gen_resp)
 268                 hclge_gen_resp_to_vf(vport, mbx_req, status,
 269                                      &resp_data, resp_len);
 270
 271         return 0;
 272 }
 273
 274 static int hclge_set_vf_vlan_cfg(struct hclge_vport *vport,
 275                                  struct hclge_mbx_vf_to_pf_cmd *mbx_req,
 276                                  bool gen_resp)
 277 {
 278         int status = 0;
 279
 280         if (mbx_req->msg[1] == HCLGE_MBX_VLAN_FILTER) {
 281                 struct hnae3_handle *handle = &vport->nic;
 282                 u16 vlan, proto;
 283                 bool is_kill;
 284
 285                 is_kill = !!mbx_req->msg[2];
 286                 memcpy(&vlan, &mbx_req->msg[3], sizeof(vlan));
 287                 memcpy(&proto, &mbx_req->msg[5], sizeof(proto));
 288                 status = hclge_set_vlan_filter(handle, cpu_to_be16(proto),
 289                                                vlan, is_kill);
 290         } else if (mbx_req->msg[1] == HCLGE_MBX_VLAN_RX_OFF_CFG) {
 291                 struct hnae3_handle *handle = &vport->nic;
 292                 bool en = mbx_req->msg[2] ? true : false;
 293
 294                 status = hclge_en_hw_strip_rxvtag(handle, en);
 295         }
 296
 297         if (gen_resp)
 298                 status = hclge_gen_resp_to_vf(vport, mbx_req, status, NULL, 0);
 299
 300         return status;
 301 }
 302
 303 static int hclge_set_vf_alive(struct hclge_vport *vport,
 304                               struct hclge_mbx_vf_to_pf_cmd *mbx_req,
 305                               bool gen_resp)
 306 {
 307         bool alive = !!mbx_req->msg[2];
 308         int ret = 0;
 309
 310         if (alive)
 311                 ret = hclge_vport_start(vport);
 312         else
 313                 hclge_vport_stop(vport);
 314
 315         return ret;
 316 }
 317
 318 static int hclge_get_vf_tcinfo(struct hclge_vport *vport,
 319                                struct hclge_mbx_vf_to_pf_cmd *mbx_req,
 320                                bool gen_resp)
 321 {
 322         struct hnae3_knic_private_info *kinfo = &vport->nic.kinfo;
 323         u8 vf_tc_map = 0;
 324         int i, ret;
 325
 326         for (i = 0; i < kinfo->num_tc; i++)
 327                 vf_tc_map |= BIT(i);
 328
 329         ret = hclge_gen_resp_to_vf(vport, mbx_req, 0, &vf_tc_map,
 330                                    sizeof(u8));
 331
 332         return ret;
 333 }
 334
 335 static int hclge_get_vf_queue_info(struct hclge_vport *vport,
 336                                    struct hclge_mbx_vf_to_pf_cmd *mbx_req,
 337                                    bool gen_resp)
 338 {
 339 #define HCLGE_TQPS_RSS_INFO_LEN         8
 340         u8 resp_data[HCLGE_TQPS_RSS_INFO_LEN];
 341         struct hclge_dev *hdev = vport->back;
 342
 343         /* get the queue related info */
 344         memcpy(&resp_data[0], &vport->alloc_tqps, sizeof(u16));
 345         memcpy(&resp_data[2], &vport->nic.kinfo.rss_size, sizeof(u16));
 346         memcpy(&resp_data[4], &hdev->num_desc, sizeof(u16));
 347         memcpy(&resp_data[6], &hdev->rx_buf_len, sizeof(u16));
 348
 349         return hclge_gen_resp_to_vf(vport, mbx_req, 0, resp_data,
 350                                     HCLGE_TQPS_RSS_INFO_LEN);
 351 }
 352
 353 static int hclge_get_link_info(struct hclge_vport *vport,
 354                                struct hclge_mbx_vf_to_pf_cmd *mbx_req)
 355 {
 356         struct hclge_dev *hdev = vport->back;
 357         u16 link_status;
 358         u8 msg_data[8];
 359         u8 dest_vfid;
 360         u16 duplex;
 361
 362         /* mac.link can only be 0 or 1 */
 363         link_status = (u16)hdev->hw.mac.link;
 364         duplex = hdev->hw.mac.duplex;
 365         memcpy(&msg_data[0], &link_status, sizeof(u16));
 366         memcpy(&msg_data[2], &hdev->hw.mac.speed, sizeof(u32));
 367         memcpy(&msg_data[6], &duplex, sizeof(u16));
 368         dest_vfid = mbx_req->mbx_src_vfid;
 369
 370         /* send this requested info to VF */
 371         return hclge_send_mbx_msg(vport, msg_data, sizeof(msg_data),
 372                                   HCLGE_MBX_LINK_STAT_CHANGE, dest_vfid);
 373 }
 374
 375 static void hclge_mbx_reset_vf_queue(struct hclge_vport *vport,
 376                                      struct hclge_mbx_vf_to_pf_cmd *mbx_req)
 377 {
 378         u16 queue_id;
 379
 380         memcpy(&queue_id, &mbx_req->msg[2], sizeof(queue_id));
 381
 382         hclge_reset_vf_queue(vport, queue_id);
 383
 384         /* send response msg to VF after queue reset complete*/
 385         hclge_gen_resp_to_vf(vport, mbx_req, 0, NULL, 0);
 386 }
 387
 388 static void hclge_reset_vf(struct hclge_vport *vport,
 389                            struct hclge_mbx_vf_to_pf_cmd *mbx_req)
 390 {
 391         struct hclge_dev *hdev = vport->back;
 392         int ret;
 393
 394         dev_warn(&hdev->pdev->dev, "PF received VF reset request from VF %d!",
 395                  vport->vport_id);
 396
 397         ret = hclge_func_reset_cmd(hdev, vport->vport_id);
 398         hclge_gen_resp_to_vf(vport, mbx_req, ret, NULL, 0);
 399 }
 400
 401 static void hclge_vf_keep_alive(struct hclge_vport *vport,
 402                                 struct hclge_mbx_vf_to_pf_cmd *mbx_req)
 403 {
 404         vport->last_active_jiffies = jiffies;
 405 }
 406
 407 static int hclge_set_vf_mtu(struct hclge_vport *vport,
 408                             struct hclge_mbx_vf_to_pf_cmd *mbx_req)
 409 {
 410         int ret;
 411         u32 mtu;
 412
 413         memcpy(&mtu, &mbx_req->msg[2], sizeof(mtu));
 414         ret = hclge_set_vport_mtu(vport, mtu);
 415
 416         return hclge_gen_resp_to_vf(vport, mbx_req, ret, NULL, 0);
 417 }
 418
 419 static int hclge_get_queue_id_in_pf(struct hclge_vport *vport,
 420                                     struct hclge_mbx_vf_to_pf_cmd *mbx_req)
 421 {
 422         u16 queue_id, qid_in_pf;
 423         u8 resp_data[2];
 424
 425         memcpy(&queue_id, &mbx_req->msg[2], sizeof(queue_id));
 426         qid_in_pf = hclge_covert_handle_qid_global(&vport->nic, queue_id);
 427         memcpy(resp_data, &qid_in_pf, sizeof(qid_in_pf));
 428
 429         return hclge_gen_resp_to_vf(vport, mbx_req, 0, resp_data, 2);
 430 }
 431
 432 static bool hclge_cmd_crq_empty(struct hclge_hw *hw)
 433 {
 434         u32 tail = hclge_read_dev(hw, HCLGE_NIC_CRQ_TAIL_REG);
 435
 436         return tail == hw->cmq.crq.next_to_use;
 437 }
 438
 439 void hclge_mbx_handler(struct hclge_dev *hdev)
 440 {
 441         struct hclge_cmq_ring *crq = &hdev->hw.cmq.crq;
 442         struct hclge_mbx_vf_to_pf_cmd *req;
 443         struct hclge_vport *vport;
 444         struct hclge_desc *desc;
 445         int ret, flag;
 446
 447         /* handle all the mailbox requests in the queue */
 448         while (!hclge_cmd_crq_empty(&hdev->hw)) {
 449                 if (test_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state)) {
 450                         dev_warn(&hdev->pdev->dev,
 451                                  "command queue needs re-initializing\n");
 452                         return;
 453                 }
 454
 455                 desc = &crq->desc[crq->next_to_use];
 456                 req = (struct hclge_mbx_vf_to_pf_cmd *)desc->data;
 457
 458                 flag = le16_to_cpu(crq->desc[crq->next_to_use].flag);
 459                 if (unlikely(!hnae3_get_bit(flag, HCLGE_CMDQ_RX_OUTVLD_B))) {
 460                         dev_warn(&hdev->pdev->dev,
 461                                  "dropped invalid mailbox message, code = %d\n",
 462                                  req->msg[0]);
 463
 464                         /* dropping/not processing this invalid message */
 465                         crq->desc[crq->next_to_use].flag = 0;
 466                         hclge_mbx_ring_ptr_move_crq(crq);
 467                         continue;
 468                 }
 469
 470                 vport = &hdev->vport[req->mbx_src_vfid];
 471
 472                 switch (req->msg[0]) {
 473                 case HCLGE_MBX_MAP_RING_TO_VECTOR:
 474                         ret = hclge_map_unmap_ring_to_vf_vector(vport, true,
 475                                                                 req);
 476                         break;
 477                 case HCLGE_MBX_UNMAP_RING_TO_VECTOR:
 478                         ret = hclge_map_unmap_ring_to_vf_vector(vport, false,
 479                                                                 req);
 480                         break;
 481                 case HCLGE_MBX_SET_PROMISC_MODE:
 482                         ret = hclge_set_vf_promisc_mode(vport, req);
 483                         if (ret)
 484                                 dev_err(&hdev->pdev->dev,
 485                                         "PF fail(%d) to set VF promisc mode\n",
 486                                         ret);
 487                         break;
 488                 case HCLGE_MBX_SET_UNICAST:
 489                         ret = hclge_set_vf_uc_mac_addr(vport, req, true);
 490                         if (ret)
 491                                 dev_err(&hdev->pdev->dev,
 492                                         "PF fail(%d) to set VF UC MAC Addr\n",
 493                                         ret);
 494                         break;
 495                 case HCLGE_MBX_SET_MULTICAST:
 496                         ret = hclge_set_vf_mc_mac_addr(vport, req, false);
 497                         if (ret)
 498                                 dev_err(&hdev->pdev->dev,
 499                                         "PF fail(%d) to set VF MC MAC Addr\n",
 500                                         ret);
 501                         break;
 502                 case HCLGE_MBX_SET_VLAN:
 503                         ret = hclge_set_vf_vlan_cfg(vport, req, false);
 504                         if (ret)
 505                                 dev_err(&hdev->pdev->dev,
 506                                         "PF failed(%d) to config VF's VLAN\n",
 507                                         ret);
 508                         break;
 509                 case HCLGE_MBX_SET_ALIVE:
 510                         ret = hclge_set_vf_alive(vport, req, false);
 511                         if (ret)
 512                                 dev_err(&hdev->pdev->dev,
 513                                         "PF failed(%d) to set VF's ALIVE\n",
 514                                         ret);
 515                         break;
 516                 case HCLGE_MBX_GET_QINFO:
 517                         ret = hclge_get_vf_queue_info(vport, req, true);
 518                         if (ret)
 519                                 dev_err(&hdev->pdev->dev,
 520                                         "PF failed(%d) to get Q info for VF\n",
 521                                         ret);
 522                         break;
 523                 case HCLGE_MBX_GET_TCINFO:
 524                         ret = hclge_get_vf_tcinfo(vport, req, true);
 525                         if (ret)
 526                                 dev_err(&hdev->pdev->dev,
 527                                         "PF failed(%d) to get TC info for VF\n",
 528                                         ret);
 529                         break;
 530                 case HCLGE_MBX_GET_LINK_STATUS:
 531                         ret = hclge_get_link_info(vport, req);
 532                         if (ret)
 533                                 dev_err(&hdev->pdev->dev,
 534                                         "PF fail(%d) to get link stat for VF\n",
 535                                         ret);
 536                         break;
 537                 case HCLGE_MBX_QUEUE_RESET:
 538                         hclge_mbx_reset_vf_queue(vport, req);
 539                         break;
 540                 case HCLGE_MBX_RESET:
 541                         hclge_reset_vf(vport, req);
 542                         break;
 543                 case HCLGE_MBX_KEEP_ALIVE:
 544                         hclge_vf_keep_alive(vport, req);
 545                         break;
 546                 case HCLGE_MBX_SET_MTU:
 547                         ret = hclge_set_vf_mtu(vport, req);
 548                         if (ret)
 549                                 dev_err(&hdev->pdev->dev,
 550                                         "VF fail(%d) to set mtu\n", ret);
 551                         break;
 552                 case HCLGE_MBX_GET_QID_IN_PF:
 553                         ret = hclge_get_queue_id_in_pf(vport, req);
 554                         if (ret)
 555                                 dev_err(&hdev->pdev->dev,
 556                                         "PF failed(%d) to get qid for VF\n",
 557                                         ret);
 558                         break;
 559                 default:
 560                         dev_err(&hdev->pdev->dev,
 561                                 "un-supported mailbox message, code = %d\n",
 562                                 req->msg[0]);
 563                         break;
 564                 }
 565                 crq->desc[crq->next_to_use].flag = 0;
 566                 hclge_mbx_ring_ptr_move_crq(crq);
 567         }
 568
 569         /* Write back CMDQ_RQ header pointer, M7 need this pointer */
 570         hclge_write_dev(&hdev->hw, HCLGE_NIC_CRQ_HEAD_REG, crq->next_to_use);
 571 }