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 int resp = abs(errno); 14 15 /* The status for pf to vf msg cmd is u16, constrainted by HW. 16 * We need to keep the same type with it. 17 * The intput errno is the stander error code, it's safely to 18 * use a u16 to store the abs(errno). 19 */ 20 return (u16)resp; 21 } 22 23 /* hclge_gen_resp_to_vf: used to generate a synchronous response to VF when PF 24 * receives a mailbox message from VF. 25 * @vport: pointer to struct hclge_vport 26 * @vf_to_pf_req: pointer to hclge_mbx_vf_to_pf_cmd of the original mailbox 27 * message 28 * @resp_status: indicate to VF whether its request success(0) or failed. 29 */ 30 static int hclge_gen_resp_to_vf(struct hclge_vport *vport, 31 struct hclge_mbx_vf_to_pf_cmd *vf_to_pf_req, 32 struct hclge_respond_to_vf_msg *resp_msg) 33 { 34 struct hclge_mbx_pf_to_vf_cmd *resp_pf_to_vf; 35 struct hclge_dev *hdev = vport->back; 36 enum hclge_cmd_status status; 37 struct hclge_desc desc; 38 u16 resp; 39 40 resp_pf_to_vf = (struct hclge_mbx_pf_to_vf_cmd *)desc.data; 41 42 if (resp_msg->len > HCLGE_MBX_MAX_RESP_DATA_SIZE) { 43 dev_err(&hdev->pdev->dev, 44 "PF fail to gen resp to VF len %u exceeds max len %u\n", 45 resp_msg->len, 46 HCLGE_MBX_MAX_RESP_DATA_SIZE); 47 /* If resp_msg->len is too long, set the value to max length 48 * and return the msg to VF 49 */ 50 resp_msg->len = HCLGE_MBX_MAX_RESP_DATA_SIZE; 51 } 52 53 hclge_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_MBX_PF_TO_VF, false); 54 55 resp_pf_to_vf->dest_vfid = vf_to_pf_req->mbx_src_vfid; 56 resp_pf_to_vf->msg_len = vf_to_pf_req->msg_len; 57 resp_pf_to_vf->match_id = vf_to_pf_req->match_id; 58 59 resp_pf_to_vf->msg.code = HCLGE_MBX_PF_VF_RESP; 60 resp_pf_to_vf->msg.vf_mbx_msg_code = vf_to_pf_req->msg.code; 61 resp_pf_to_vf->msg.vf_mbx_msg_subcode = vf_to_pf_req->msg.subcode; 62 resp = hclge_errno_to_resp(resp_msg->status); 63 if (resp < SHRT_MAX) { 64 resp_pf_to_vf->msg.resp_status = resp; 65 } else { 66 dev_warn(&hdev->pdev->dev, 67 "failed to send response to VF, response status %u is out-of-bound\n", 68 resp); 69 resp_pf_to_vf->msg.resp_status = EIO; 70 } 71 72 if (resp_msg->len > 0) 73 memcpy(resp_pf_to_vf->msg.resp_data, resp_msg->data, 74 resp_msg->len); 75 76 trace_hclge_pf_mbx_send(hdev, resp_pf_to_vf); 77 78 status = hclge_cmd_send(&hdev->hw, &desc, 1); 79 if (status) 80 dev_err(&hdev->pdev->dev, 81 "failed to send response to VF, status: %d, vfid: %u, code: %u, subcode: %u.\n", 82 status, vf_to_pf_req->mbx_src_vfid, 83 vf_to_pf_req->msg.code, vf_to_pf_req->msg.subcode); 84 85 return status; 86 } 87 88 static int hclge_send_mbx_msg(struct hclge_vport *vport, u8 *msg, u16 msg_len, 89 u16 mbx_opcode, u8 dest_vfid) 90 { 91 struct hclge_mbx_pf_to_vf_cmd *resp_pf_to_vf; 92 struct hclge_dev *hdev = vport->back; 93 enum hclge_cmd_status status; 94 struct hclge_desc desc; 95 96 resp_pf_to_vf = (struct hclge_mbx_pf_to_vf_cmd *)desc.data; 97 98 hclge_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_MBX_PF_TO_VF, false); 99 100 resp_pf_to_vf->dest_vfid = dest_vfid; 101 resp_pf_to_vf->msg_len = msg_len; 102 resp_pf_to_vf->msg.code = mbx_opcode; 103 104 memcpy(&resp_pf_to_vf->msg.vf_mbx_msg_code, msg, msg_len); 105 106 trace_hclge_pf_mbx_send(hdev, resp_pf_to_vf); 107 108 status = hclge_cmd_send(&hdev->hw, &desc, 1); 109 if (status) 110 dev_err(&hdev->pdev->dev, 111 "failed to send mailbox to VF, status: %d, vfid: %u, opcode: %u\n", 112 status, dest_vfid, mbx_opcode); 113 114 return status; 115 } 116 117 int hclge_inform_reset_assert_to_vf(struct hclge_vport *vport) 118 { 119 struct hclge_dev *hdev = vport->back; 120 u16 reset_type; 121 u8 msg_data[2]; 122 u8 dest_vfid; 123 124 BUILD_BUG_ON(HNAE3_MAX_RESET > U16_MAX); 125 126 dest_vfid = (u8)vport->vport_id; 127 128 if (hdev->reset_type == HNAE3_FUNC_RESET) 129 reset_type = HNAE3_VF_PF_FUNC_RESET; 130 else if (hdev->reset_type == HNAE3_FLR_RESET) 131 reset_type = HNAE3_VF_FULL_RESET; 132 else 133 reset_type = HNAE3_VF_FUNC_RESET; 134 135 memcpy(&msg_data[0], &reset_type, sizeof(u16)); 136 137 /* send this requested info to VF */ 138 return hclge_send_mbx_msg(vport, msg_data, sizeof(msg_data), 139 HCLGE_MBX_ASSERTING_RESET, dest_vfid); 140 } 141 142 static void hclge_free_vector_ring_chain(struct hnae3_ring_chain_node *head) 143 { 144 struct hnae3_ring_chain_node *chain_tmp, *chain; 145 146 chain = head->next; 147 148 while (chain) { 149 chain_tmp = chain->next; 150 kfree_sensitive(chain); 151 chain = chain_tmp; 152 } 153 } 154 155 /* hclge_get_ring_chain_from_mbx: get ring type & tqp id & int_gl idx 156 * from mailbox message 157 * msg[0]: opcode 158 * msg[1]: <not relevant to this function> 159 * msg[2]: ring_num 160 * msg[3]: first ring type (TX|RX) 161 * msg[4]: first tqp id 162 * msg[5]: first int_gl idx 163 * msg[6] ~ msg[14]: other ring type, tqp id and int_gl idx 164 */ 165 static int hclge_get_ring_chain_from_mbx( 166 struct hclge_mbx_vf_to_pf_cmd *req, 167 struct hnae3_ring_chain_node *ring_chain, 168 struct hclge_vport *vport) 169 { 170 struct hnae3_ring_chain_node *cur_chain, *new_chain; 171 struct hclge_dev *hdev = vport->back; 172 int ring_num; 173 int i; 174 175 ring_num = req->msg.ring_num; 176 177 if (ring_num > HCLGE_MBX_MAX_RING_CHAIN_PARAM_NUM) 178 return -ENOMEM; 179 180 for (i = 0; i < ring_num; i++) { 181 if (req->msg.param[i].tqp_index >= vport->nic.kinfo.rss_size) { 182 dev_err(&hdev->pdev->dev, "tqp index(%u) is out of range(0-%u)\n", 183 req->msg.param[i].tqp_index, 184 vport->nic.kinfo.rss_size - 1); 185 return -EINVAL; 186 } 187 } 188 189 hnae3_set_bit(ring_chain->flag, HNAE3_RING_TYPE_B, 190 req->msg.param[0].ring_type); 191 ring_chain->tqp_index = 192 hclge_get_queue_id(vport->nic.kinfo.tqp 193 [req->msg.param[0].tqp_index]); 194 hnae3_set_field(ring_chain->int_gl_idx, HNAE3_RING_GL_IDX_M, 195 HNAE3_RING_GL_IDX_S, req->msg.param[0].int_gl_index); 196 197 cur_chain = ring_chain; 198 199 for (i = 1; i < ring_num; i++) { 200 new_chain = kzalloc(sizeof(*new_chain), GFP_KERNEL); 201 if (!new_chain) 202 goto err; 203 204 hnae3_set_bit(new_chain->flag, HNAE3_RING_TYPE_B, 205 req->msg.param[i].ring_type); 206 207 new_chain->tqp_index = 208 hclge_get_queue_id(vport->nic.kinfo.tqp 209 [req->msg.param[i].tqp_index]); 210 211 hnae3_set_field(new_chain->int_gl_idx, HNAE3_RING_GL_IDX_M, 212 HNAE3_RING_GL_IDX_S, 213 req->msg.param[i].int_gl_index); 214 215 cur_chain->next = new_chain; 216 cur_chain = new_chain; 217 } 218 219 return 0; 220 err: 221 hclge_free_vector_ring_chain(ring_chain); 222 return -ENOMEM; 223 } 224 225 static int hclge_map_unmap_ring_to_vf_vector(struct hclge_vport *vport, bool en, 226 struct hclge_mbx_vf_to_pf_cmd *req) 227 { 228 struct hnae3_ring_chain_node ring_chain; 229 int vector_id = req->msg.vector_id; 230 int ret; 231 232 memset(&ring_chain, 0, sizeof(ring_chain)); 233 ret = hclge_get_ring_chain_from_mbx(req, &ring_chain, vport); 234 if (ret) 235 return ret; 236 237 ret = hclge_bind_ring_with_vector(vport, vector_id, en, &ring_chain); 238 239 hclge_free_vector_ring_chain(&ring_chain); 240 241 return ret; 242 } 243 244 static void hclge_set_vf_promisc_mode(struct hclge_vport *vport, 245 struct hclge_mbx_vf_to_pf_cmd *req) 246 { 247 struct hnae3_handle *handle = &vport->nic; 248 struct hclge_dev *hdev = vport->back; 249 250 vport->vf_info.request_uc_en = req->msg.en_uc; 251 vport->vf_info.request_mc_en = req->msg.en_mc; 252 vport->vf_info.request_bc_en = req->msg.en_bc; 253 254 if (req->msg.en_limit_promisc) 255 set_bit(HNAE3_PFLAG_LIMIT_PROMISC, &handle->priv_flags); 256 else 257 clear_bit(HNAE3_PFLAG_LIMIT_PROMISC, 258 &handle->priv_flags); 259 260 set_bit(HCLGE_VPORT_STATE_PROMISC_CHANGE, &vport->state); 261 hclge_task_schedule(hdev, 0); 262 } 263 264 static int hclge_set_vf_uc_mac_addr(struct hclge_vport *vport, 265 struct hclge_mbx_vf_to_pf_cmd *mbx_req) 266 { 267 #define HCLGE_MBX_VF_OLD_MAC_ADDR_OFFSET 6 268 269 const u8 *mac_addr = (const u8 *)(mbx_req->msg.data); 270 struct hclge_dev *hdev = vport->back; 271 int status; 272 273 if (mbx_req->msg.subcode == HCLGE_MBX_MAC_VLAN_UC_MODIFY) { 274 const u8 *old_addr = (const u8 *) 275 (&mbx_req->msg.data[HCLGE_MBX_VF_OLD_MAC_ADDR_OFFSET]); 276 277 /* If VF MAC has been configured by the host then it 278 * cannot be overridden by the MAC specified by the VM. 279 */ 280 if (!is_zero_ether_addr(vport->vf_info.mac) && 281 !ether_addr_equal(mac_addr, vport->vf_info.mac)) 282 return -EPERM; 283 284 if (!is_valid_ether_addr(mac_addr)) 285 return -EINVAL; 286 287 spin_lock_bh(&vport->mac_list_lock); 288 status = hclge_update_mac_node_for_dev_addr(vport, old_addr, 289 mac_addr); 290 spin_unlock_bh(&vport->mac_list_lock); 291 hclge_task_schedule(hdev, 0); 292 } else if (mbx_req->msg.subcode == HCLGE_MBX_MAC_VLAN_UC_ADD) { 293 status = hclge_update_mac_list(vport, HCLGE_MAC_TO_ADD, 294 HCLGE_MAC_ADDR_UC, mac_addr); 295 } else if (mbx_req->msg.subcode == HCLGE_MBX_MAC_VLAN_UC_REMOVE) { 296 status = hclge_update_mac_list(vport, HCLGE_MAC_TO_DEL, 297 HCLGE_MAC_ADDR_UC, mac_addr); 298 } else { 299 dev_err(&hdev->pdev->dev, 300 "failed to set unicast mac addr, unknown subcode %u\n", 301 mbx_req->msg.subcode); 302 return -EIO; 303 } 304 305 return status; 306 } 307 308 static int hclge_set_vf_mc_mac_addr(struct hclge_vport *vport, 309 struct hclge_mbx_vf_to_pf_cmd *mbx_req) 310 { 311 const u8 *mac_addr = (const u8 *)(mbx_req->msg.data); 312 struct hclge_dev *hdev = vport->back; 313 314 if (mbx_req->msg.subcode == HCLGE_MBX_MAC_VLAN_MC_ADD) { 315 hclge_update_mac_list(vport, HCLGE_MAC_TO_ADD, 316 HCLGE_MAC_ADDR_MC, mac_addr); 317 } else if (mbx_req->msg.subcode == HCLGE_MBX_MAC_VLAN_MC_REMOVE) { 318 hclge_update_mac_list(vport, HCLGE_MAC_TO_DEL, 319 HCLGE_MAC_ADDR_MC, mac_addr); 320 } else { 321 dev_err(&hdev->pdev->dev, 322 "failed to set mcast mac addr, unknown subcode %u\n", 323 mbx_req->msg.subcode); 324 return -EIO; 325 } 326 327 return 0; 328 } 329 330 int hclge_push_vf_port_base_vlan_info(struct hclge_vport *vport, u8 vfid, 331 u16 state, 332 struct hclge_vlan_info *vlan_info) 333 { 334 #define MSG_DATA_SIZE 8 335 336 u8 msg_data[MSG_DATA_SIZE]; 337 338 memcpy(&msg_data[0], &state, sizeof(u16)); 339 memcpy(&msg_data[2], &vlan_info->vlan_proto, sizeof(u16)); 340 memcpy(&msg_data[4], &vlan_info->qos, sizeof(u16)); 341 memcpy(&msg_data[6], &vlan_info->vlan_tag, sizeof(u16)); 342 343 return hclge_send_mbx_msg(vport, msg_data, sizeof(msg_data), 344 HCLGE_MBX_PUSH_VLAN_INFO, vfid); 345 } 346 347 static int hclge_set_vf_vlan_cfg(struct hclge_vport *vport, 348 struct hclge_mbx_vf_to_pf_cmd *mbx_req, 349 struct hclge_respond_to_vf_msg *resp_msg) 350 { 351 #define HCLGE_MBX_VLAN_STATE_OFFSET 0 352 #define HCLGE_MBX_VLAN_INFO_OFFSET 2 353 354 struct hnae3_handle *handle = &vport->nic; 355 struct hclge_dev *hdev = vport->back; 356 struct hclge_vf_vlan_cfg *msg_cmd; 357 358 msg_cmd = (struct hclge_vf_vlan_cfg *)&mbx_req->msg; 359 switch (msg_cmd->subcode) { 360 case HCLGE_MBX_VLAN_FILTER: 361 return hclge_set_vlan_filter(handle, 362 cpu_to_be16(msg_cmd->proto), 363 msg_cmd->vlan, msg_cmd->is_kill); 364 case HCLGE_MBX_VLAN_RX_OFF_CFG: 365 return hclge_en_hw_strip_rxvtag(handle, msg_cmd->enable); 366 case HCLGE_MBX_GET_PORT_BASE_VLAN_STATE: 367 /* vf does not need to know about the port based VLAN state 368 * on device HNAE3_DEVICE_VERSION_V3. So always return disable 369 * on device HNAE3_DEVICE_VERSION_V3 if vf queries the port 370 * based VLAN state. 371 */ 372 resp_msg->data[0] = 373 hdev->ae_dev->dev_version >= HNAE3_DEVICE_VERSION_V3 ? 374 HNAE3_PORT_BASE_VLAN_DISABLE : 375 vport->port_base_vlan_cfg.state; 376 resp_msg->len = sizeof(u8); 377 return 0; 378 case HCLGE_MBX_ENABLE_VLAN_FILTER: 379 return hclge_enable_vport_vlan_filter(vport, msg_cmd->enable); 380 default: 381 return 0; 382 } 383 } 384 385 static int hclge_set_vf_alive(struct hclge_vport *vport, 386 struct hclge_mbx_vf_to_pf_cmd *mbx_req) 387 { 388 bool alive = !!mbx_req->msg.data[0]; 389 int ret = 0; 390 391 if (alive) 392 ret = hclge_vport_start(vport); 393 else 394 hclge_vport_stop(vport); 395 396 return ret; 397 } 398 399 static void hclge_get_basic_info(struct hclge_vport *vport, 400 struct hclge_respond_to_vf_msg *resp_msg) 401 { 402 struct hnae3_knic_private_info *kinfo = &vport->nic.kinfo; 403 struct hnae3_ae_dev *ae_dev = vport->back->ae_dev; 404 struct hclge_basic_info *basic_info; 405 unsigned int i; 406 407 basic_info = (struct hclge_basic_info *)resp_msg->data; 408 for (i = 0; i < kinfo->tc_info.num_tc; i++) 409 basic_info->hw_tc_map |= BIT(i); 410 411 if (test_bit(HNAE3_DEV_SUPPORT_VLAN_FLTR_MDF_B, ae_dev->caps)) 412 hnae3_set_bit(basic_info->pf_caps, 413 HNAE3_PF_SUPPORT_VLAN_FLTR_MDF_B, 1); 414 415 resp_msg->len = HCLGE_MBX_MAX_RESP_DATA_SIZE; 416 } 417 418 static void hclge_get_vf_queue_info(struct hclge_vport *vport, 419 struct hclge_respond_to_vf_msg *resp_msg) 420 { 421 #define HCLGE_TQPS_RSS_INFO_LEN 6 422 #define HCLGE_TQPS_ALLOC_OFFSET 0 423 #define HCLGE_TQPS_RSS_SIZE_OFFSET 2 424 #define HCLGE_TQPS_RX_BUFFER_LEN_OFFSET 4 425 426 struct hclge_dev *hdev = vport->back; 427 428 /* get the queue related info */ 429 memcpy(&resp_msg->data[HCLGE_TQPS_ALLOC_OFFSET], 430 &vport->alloc_tqps, sizeof(u16)); 431 memcpy(&resp_msg->data[HCLGE_TQPS_RSS_SIZE_OFFSET], 432 &vport->nic.kinfo.rss_size, sizeof(u16)); 433 memcpy(&resp_msg->data[HCLGE_TQPS_RX_BUFFER_LEN_OFFSET], 434 &hdev->rx_buf_len, sizeof(u16)); 435 resp_msg->len = HCLGE_TQPS_RSS_INFO_LEN; 436 } 437 438 static void hclge_get_vf_mac_addr(struct hclge_vport *vport, 439 struct hclge_respond_to_vf_msg *resp_msg) 440 { 441 ether_addr_copy(resp_msg->data, vport->vf_info.mac); 442 resp_msg->len = ETH_ALEN; 443 } 444 445 static void hclge_get_vf_queue_depth(struct hclge_vport *vport, 446 struct hclge_respond_to_vf_msg *resp_msg) 447 { 448 #define HCLGE_TQPS_DEPTH_INFO_LEN 4 449 #define HCLGE_TQPS_NUM_TX_DESC_OFFSET 0 450 #define HCLGE_TQPS_NUM_RX_DESC_OFFSET 2 451 452 struct hclge_dev *hdev = vport->back; 453 454 /* get the queue depth info */ 455 memcpy(&resp_msg->data[HCLGE_TQPS_NUM_TX_DESC_OFFSET], 456 &hdev->num_tx_desc, sizeof(u16)); 457 memcpy(&resp_msg->data[HCLGE_TQPS_NUM_RX_DESC_OFFSET], 458 &hdev->num_rx_desc, sizeof(u16)); 459 resp_msg->len = HCLGE_TQPS_DEPTH_INFO_LEN; 460 } 461 462 static void hclge_get_vf_media_type(struct hclge_vport *vport, 463 struct hclge_respond_to_vf_msg *resp_msg) 464 { 465 #define HCLGE_VF_MEDIA_TYPE_OFFSET 0 466 #define HCLGE_VF_MODULE_TYPE_OFFSET 1 467 #define HCLGE_VF_MEDIA_TYPE_LENGTH 2 468 469 struct hclge_dev *hdev = vport->back; 470 471 resp_msg->data[HCLGE_VF_MEDIA_TYPE_OFFSET] = 472 hdev->hw.mac.media_type; 473 resp_msg->data[HCLGE_VF_MODULE_TYPE_OFFSET] = 474 hdev->hw.mac.module_type; 475 resp_msg->len = HCLGE_VF_MEDIA_TYPE_LENGTH; 476 } 477 478 int hclge_push_vf_link_status(struct hclge_vport *vport) 479 { 480 #define HCLGE_VF_LINK_STATE_UP 1U 481 #define HCLGE_VF_LINK_STATE_DOWN 0U 482 483 struct hclge_dev *hdev = vport->back; 484 u16 link_status; 485 u8 msg_data[9]; 486 u16 duplex; 487 488 /* mac.link can only be 0 or 1 */ 489 switch (vport->vf_info.link_state) { 490 case IFLA_VF_LINK_STATE_ENABLE: 491 link_status = HCLGE_VF_LINK_STATE_UP; 492 break; 493 case IFLA_VF_LINK_STATE_DISABLE: 494 link_status = HCLGE_VF_LINK_STATE_DOWN; 495 break; 496 case IFLA_VF_LINK_STATE_AUTO: 497 default: 498 link_status = (u16)hdev->hw.mac.link; 499 break; 500 } 501 502 duplex = hdev->hw.mac.duplex; 503 memcpy(&msg_data[0], &link_status, sizeof(u16)); 504 memcpy(&msg_data[2], &hdev->hw.mac.speed, sizeof(u32)); 505 memcpy(&msg_data[6], &duplex, sizeof(u16)); 506 msg_data[8] = HCLGE_MBX_PUSH_LINK_STATUS_EN; 507 508 /* send this requested info to VF */ 509 return hclge_send_mbx_msg(vport, msg_data, sizeof(msg_data), 510 HCLGE_MBX_LINK_STAT_CHANGE, vport->vport_id); 511 } 512 513 static void hclge_get_link_mode(struct hclge_vport *vport, 514 struct hclge_mbx_vf_to_pf_cmd *mbx_req) 515 { 516 #define HCLGE_SUPPORTED 1 517 struct hclge_dev *hdev = vport->back; 518 unsigned long advertising; 519 unsigned long supported; 520 unsigned long send_data; 521 u8 msg_data[10] = {}; 522 u8 dest_vfid; 523 524 advertising = hdev->hw.mac.advertising[0]; 525 supported = hdev->hw.mac.supported[0]; 526 dest_vfid = mbx_req->mbx_src_vfid; 527 msg_data[0] = mbx_req->msg.data[0]; 528 529 send_data = msg_data[0] == HCLGE_SUPPORTED ? supported : advertising; 530 531 memcpy(&msg_data[2], &send_data, sizeof(unsigned long)); 532 hclge_send_mbx_msg(vport, msg_data, sizeof(msg_data), 533 HCLGE_MBX_LINK_STAT_MODE, dest_vfid); 534 } 535 536 static int hclge_mbx_reset_vf_queue(struct hclge_vport *vport, 537 struct hclge_mbx_vf_to_pf_cmd *mbx_req, 538 struct hclge_respond_to_vf_msg *resp_msg) 539 { 540 #define HCLGE_RESET_ALL_QUEUE_DONE 1U 541 struct hnae3_handle *handle = &vport->nic; 542 struct hclge_dev *hdev = vport->back; 543 u16 queue_id; 544 int ret; 545 546 memcpy(&queue_id, mbx_req->msg.data, sizeof(queue_id)); 547 resp_msg->data[0] = HCLGE_RESET_ALL_QUEUE_DONE; 548 resp_msg->len = sizeof(u8); 549 550 /* pf will reset vf's all queues at a time. So it is unnecessary 551 * to reset queues if queue_id > 0, just return success. 552 */ 553 if (queue_id > 0) 554 return 0; 555 556 ret = hclge_reset_tqp(handle); 557 if (ret) 558 dev_err(&hdev->pdev->dev, "failed to reset vf %u queue, ret = %d\n", 559 vport->vport_id - HCLGE_VF_VPORT_START_NUM, ret); 560 561 return ret; 562 } 563 564 static int hclge_reset_vf(struct hclge_vport *vport) 565 { 566 struct hclge_dev *hdev = vport->back; 567 568 dev_warn(&hdev->pdev->dev, "PF received VF reset request from VF %u!", 569 vport->vport_id - HCLGE_VF_VPORT_START_NUM); 570 571 return hclge_func_reset_cmd(hdev, vport->vport_id); 572 } 573 574 static void hclge_vf_keep_alive(struct hclge_vport *vport) 575 { 576 vport->last_active_jiffies = jiffies; 577 } 578 579 static int hclge_set_vf_mtu(struct hclge_vport *vport, 580 struct hclge_mbx_vf_to_pf_cmd *mbx_req) 581 { 582 u32 mtu; 583 584 memcpy(&mtu, mbx_req->msg.data, sizeof(mtu)); 585 586 return hclge_set_vport_mtu(vport, mtu); 587 } 588 589 static void hclge_get_queue_id_in_pf(struct hclge_vport *vport, 590 struct hclge_mbx_vf_to_pf_cmd *mbx_req, 591 struct hclge_respond_to_vf_msg *resp_msg) 592 { 593 struct hnae3_handle *handle = &vport->nic; 594 struct hclge_dev *hdev = vport->back; 595 u16 queue_id, qid_in_pf; 596 597 memcpy(&queue_id, mbx_req->msg.data, sizeof(queue_id)); 598 if (queue_id >= handle->kinfo.num_tqps) { 599 dev_err(&hdev->pdev->dev, "Invalid queue id(%u) from VF %u\n", 600 queue_id, mbx_req->mbx_src_vfid); 601 return; 602 } 603 604 qid_in_pf = hclge_covert_handle_qid_global(&vport->nic, queue_id); 605 memcpy(resp_msg->data, &qid_in_pf, sizeof(qid_in_pf)); 606 resp_msg->len = sizeof(qid_in_pf); 607 } 608 609 static void hclge_get_rss_key(struct hclge_vport *vport, 610 struct hclge_mbx_vf_to_pf_cmd *mbx_req, 611 struct hclge_respond_to_vf_msg *resp_msg) 612 { 613 #define HCLGE_RSS_MBX_RESP_LEN 8 614 struct hclge_dev *hdev = vport->back; 615 u8 index; 616 617 index = mbx_req->msg.data[0]; 618 619 /* Check the query index of rss_hash_key from VF, make sure no 620 * more than the size of rss_hash_key. 621 */ 622 if (((index + 1) * HCLGE_RSS_MBX_RESP_LEN) > 623 sizeof(vport[0].rss_hash_key)) { 624 dev_warn(&hdev->pdev->dev, 625 "failed to get the rss hash key, the index(%u) invalid !\n", 626 index); 627 return; 628 } 629 630 memcpy(resp_msg->data, 631 &hdev->vport[0].rss_hash_key[index * HCLGE_RSS_MBX_RESP_LEN], 632 HCLGE_RSS_MBX_RESP_LEN); 633 resp_msg->len = HCLGE_RSS_MBX_RESP_LEN; 634 } 635 636 static void hclge_link_fail_parse(struct hclge_dev *hdev, u8 link_fail_code) 637 { 638 switch (link_fail_code) { 639 case HCLGE_LF_REF_CLOCK_LOST: 640 dev_warn(&hdev->pdev->dev, "Reference clock lost!\n"); 641 break; 642 case HCLGE_LF_XSFP_TX_DISABLE: 643 dev_warn(&hdev->pdev->dev, "SFP tx is disabled!\n"); 644 break; 645 case HCLGE_LF_XSFP_ABSENT: 646 dev_warn(&hdev->pdev->dev, "SFP is absent!\n"); 647 break; 648 default: 649 break; 650 } 651 } 652 653 static void hclge_handle_link_change_event(struct hclge_dev *hdev, 654 struct hclge_mbx_vf_to_pf_cmd *req) 655 { 656 hclge_task_schedule(hdev, 0); 657 658 if (!req->msg.subcode) 659 hclge_link_fail_parse(hdev, req->msg.data[0]); 660 } 661 662 static bool hclge_cmd_crq_empty(struct hclge_hw *hw) 663 { 664 u32 tail = hclge_read_dev(hw, HCLGE_NIC_CRQ_TAIL_REG); 665 666 return tail == hw->cmq.crq.next_to_use; 667 } 668 669 static void hclge_handle_ncsi_error(struct hclge_dev *hdev) 670 { 671 struct hnae3_ae_dev *ae_dev = hdev->ae_dev; 672 673 ae_dev->ops->set_default_reset_request(ae_dev, HNAE3_GLOBAL_RESET); 674 dev_warn(&hdev->pdev->dev, "requesting reset due to NCSI error\n"); 675 ae_dev->ops->reset_event(hdev->pdev, NULL); 676 } 677 678 static void hclge_handle_vf_tbl(struct hclge_vport *vport, 679 struct hclge_mbx_vf_to_pf_cmd *mbx_req) 680 { 681 struct hclge_dev *hdev = vport->back; 682 struct hclge_vf_vlan_cfg *msg_cmd; 683 684 msg_cmd = (struct hclge_vf_vlan_cfg *)&mbx_req->msg; 685 if (msg_cmd->subcode == HCLGE_MBX_VPORT_LIST_CLEAR) { 686 hclge_rm_vport_all_mac_table(vport, true, HCLGE_MAC_ADDR_UC); 687 hclge_rm_vport_all_mac_table(vport, true, HCLGE_MAC_ADDR_MC); 688 hclge_rm_vport_all_vlan_table(vport, true); 689 } else { 690 dev_warn(&hdev->pdev->dev, "Invalid cmd(%u)\n", 691 msg_cmd->subcode); 692 } 693 } 694 695 void hclge_mbx_handler(struct hclge_dev *hdev) 696 { 697 struct hclge_cmq_ring *crq = &hdev->hw.cmq.crq; 698 struct hclge_respond_to_vf_msg resp_msg; 699 struct hclge_mbx_vf_to_pf_cmd *req; 700 struct hclge_vport *vport; 701 struct hclge_desc *desc; 702 bool is_del = false; 703 unsigned int flag; 704 int ret = 0; 705 706 /* handle all the mailbox requests in the queue */ 707 while (!hclge_cmd_crq_empty(&hdev->hw)) { 708 if (test_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state)) { 709 dev_warn(&hdev->pdev->dev, 710 "command queue needs re-initializing\n"); 711 return; 712 } 713 714 desc = &crq->desc[crq->next_to_use]; 715 req = (struct hclge_mbx_vf_to_pf_cmd *)desc->data; 716 717 flag = le16_to_cpu(crq->desc[crq->next_to_use].flag); 718 if (unlikely(!hnae3_get_bit(flag, HCLGE_CMDQ_RX_OUTVLD_B))) { 719 dev_warn(&hdev->pdev->dev, 720 "dropped invalid mailbox message, code = %u\n", 721 req->msg.code); 722 723 /* dropping/not processing this invalid message */ 724 crq->desc[crq->next_to_use].flag = 0; 725 hclge_mbx_ring_ptr_move_crq(crq); 726 continue; 727 } 728 729 vport = &hdev->vport[req->mbx_src_vfid]; 730 731 trace_hclge_pf_mbx_get(hdev, req); 732 733 /* clear the resp_msg before processing every mailbox message */ 734 memset(&resp_msg, 0, sizeof(resp_msg)); 735 736 switch (req->msg.code) { 737 case HCLGE_MBX_MAP_RING_TO_VECTOR: 738 ret = hclge_map_unmap_ring_to_vf_vector(vport, true, 739 req); 740 break; 741 case HCLGE_MBX_UNMAP_RING_TO_VECTOR: 742 ret = hclge_map_unmap_ring_to_vf_vector(vport, false, 743 req); 744 break; 745 case HCLGE_MBX_SET_PROMISC_MODE: 746 hclge_set_vf_promisc_mode(vport, req); 747 break; 748 case HCLGE_MBX_SET_UNICAST: 749 ret = hclge_set_vf_uc_mac_addr(vport, req); 750 if (ret) 751 dev_err(&hdev->pdev->dev, 752 "PF fail(%d) to set VF UC MAC Addr\n", 753 ret); 754 break; 755 case HCLGE_MBX_SET_MULTICAST: 756 ret = hclge_set_vf_mc_mac_addr(vport, req); 757 if (ret) 758 dev_err(&hdev->pdev->dev, 759 "PF fail(%d) to set VF MC MAC Addr\n", 760 ret); 761 break; 762 case HCLGE_MBX_SET_VLAN: 763 ret = hclge_set_vf_vlan_cfg(vport, req, &resp_msg); 764 if (ret) 765 dev_err(&hdev->pdev->dev, 766 "PF failed(%d) to config VF's VLAN\n", 767 ret); 768 break; 769 case HCLGE_MBX_SET_ALIVE: 770 ret = hclge_set_vf_alive(vport, req); 771 if (ret) 772 dev_err(&hdev->pdev->dev, 773 "PF failed(%d) to set VF's ALIVE\n", 774 ret); 775 break; 776 case HCLGE_MBX_GET_QINFO: 777 hclge_get_vf_queue_info(vport, &resp_msg); 778 break; 779 case HCLGE_MBX_GET_QDEPTH: 780 hclge_get_vf_queue_depth(vport, &resp_msg); 781 break; 782 case HCLGE_MBX_GET_BASIC_INFO: 783 hclge_get_basic_info(vport, &resp_msg); 784 break; 785 case HCLGE_MBX_GET_LINK_STATUS: 786 ret = hclge_push_vf_link_status(vport); 787 if (ret) 788 dev_err(&hdev->pdev->dev, 789 "failed to inform link stat to VF, ret = %d\n", 790 ret); 791 break; 792 case HCLGE_MBX_QUEUE_RESET: 793 ret = hclge_mbx_reset_vf_queue(vport, req, &resp_msg); 794 break; 795 case HCLGE_MBX_RESET: 796 ret = hclge_reset_vf(vport); 797 break; 798 case HCLGE_MBX_KEEP_ALIVE: 799 hclge_vf_keep_alive(vport); 800 break; 801 case HCLGE_MBX_SET_MTU: 802 ret = hclge_set_vf_mtu(vport, req); 803 if (ret) 804 dev_err(&hdev->pdev->dev, 805 "VF fail(%d) to set mtu\n", ret); 806 break; 807 case HCLGE_MBX_GET_QID_IN_PF: 808 hclge_get_queue_id_in_pf(vport, req, &resp_msg); 809 break; 810 case HCLGE_MBX_GET_RSS_KEY: 811 hclge_get_rss_key(vport, req, &resp_msg); 812 break; 813 case HCLGE_MBX_GET_LINK_MODE: 814 hclge_get_link_mode(vport, req); 815 break; 816 case HCLGE_MBX_GET_VF_FLR_STATUS: 817 case HCLGE_MBX_VF_UNINIT: 818 is_del = req->msg.code == HCLGE_MBX_VF_UNINIT; 819 hclge_rm_vport_all_mac_table(vport, is_del, 820 HCLGE_MAC_ADDR_UC); 821 hclge_rm_vport_all_mac_table(vport, is_del, 822 HCLGE_MAC_ADDR_MC); 823 hclge_rm_vport_all_vlan_table(vport, is_del); 824 break; 825 case HCLGE_MBX_GET_MEDIA_TYPE: 826 hclge_get_vf_media_type(vport, &resp_msg); 827 break; 828 case HCLGE_MBX_PUSH_LINK_STATUS: 829 hclge_handle_link_change_event(hdev, req); 830 break; 831 case HCLGE_MBX_GET_MAC_ADDR: 832 hclge_get_vf_mac_addr(vport, &resp_msg); 833 break; 834 case HCLGE_MBX_NCSI_ERROR: 835 hclge_handle_ncsi_error(hdev); 836 break; 837 case HCLGE_MBX_HANDLE_VF_TBL: 838 hclge_handle_vf_tbl(vport, req); 839 break; 840 default: 841 dev_err(&hdev->pdev->dev, 842 "un-supported mailbox message, code = %u\n", 843 req->msg.code); 844 break; 845 } 846 847 /* PF driver should not reply IMP */ 848 if (hnae3_get_bit(req->mbx_need_resp, HCLGE_MBX_NEED_RESP_B) && 849 req->msg.code < HCLGE_MBX_GET_VF_FLR_STATUS) { 850 resp_msg.status = ret; 851 hclge_gen_resp_to_vf(vport, req, &resp_msg); 852 } 853 854 crq->desc[crq->next_to_use].flag = 0; 855 hclge_mbx_ring_ptr_move_crq(crq); 856 857 /* reinitialize ret after complete the mbx message processing */ 858 ret = 0; 859 } 860 861 /* Write back CMDQ_RQ header pointer, M7 need this pointer */ 862 hclge_write_dev(&hdev->hw, HCLGE_NIC_CRQ_HEAD_REG, crq->next_to_use); 863 } 864