1 // SPDX-License-Identifier: GPL-2.0+ 2 // Copyright (c) 2016-2017 Hisilicon Limited. 3 4 #include <linux/etherdevice.h> 5 #include <linux/iopoll.h> 6 #include <net/rtnetlink.h> 7 #include "hclgevf_cmd.h" 8 #include "hclgevf_main.h" 9 #include "hclge_mbx.h" 10 #include "hnae3.h" 11 12 #define HCLGEVF_NAME "hclgevf" 13 14 static int hclgevf_reset_hdev(struct hclgevf_dev *hdev); 15 static struct hnae3_ae_algo ae_algovf; 16 17 static const struct pci_device_id ae_algovf_pci_tbl[] = { 18 {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_100G_VF), 0}, 19 {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_100G_RDMA_DCB_PFC_VF), 0}, 20 /* required last entry */ 21 {0, } 22 }; 23 24 MODULE_DEVICE_TABLE(pci, ae_algovf_pci_tbl); 25 26 static inline struct hclgevf_dev *hclgevf_ae_get_hdev( 27 struct hnae3_handle *handle) 28 { 29 return container_of(handle, struct hclgevf_dev, nic); 30 } 31 32 static int hclgevf_tqps_update_stats(struct hnae3_handle *handle) 33 { 34 struct hnae3_knic_private_info *kinfo = &handle->kinfo; 35 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 36 struct hclgevf_desc desc; 37 struct hclgevf_tqp *tqp; 38 int status; 39 int i; 40 41 for (i = 0; i < kinfo->num_tqps; i++) { 42 tqp = container_of(kinfo->tqp[i], struct hclgevf_tqp, q); 43 hclgevf_cmd_setup_basic_desc(&desc, 44 HCLGEVF_OPC_QUERY_RX_STATUS, 45 true); 46 47 desc.data[0] = cpu_to_le32(tqp->index & 0x1ff); 48 status = hclgevf_cmd_send(&hdev->hw, &desc, 1); 49 if (status) { 50 dev_err(&hdev->pdev->dev, 51 "Query tqp stat fail, status = %d,queue = %d\n", 52 status, i); 53 return status; 54 } 55 tqp->tqp_stats.rcb_rx_ring_pktnum_rcd += 56 le32_to_cpu(desc.data[1]); 57 58 hclgevf_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_QUERY_TX_STATUS, 59 true); 60 61 desc.data[0] = cpu_to_le32(tqp->index & 0x1ff); 62 status = hclgevf_cmd_send(&hdev->hw, &desc, 1); 63 if (status) { 64 dev_err(&hdev->pdev->dev, 65 "Query tqp stat fail, status = %d,queue = %d\n", 66 status, i); 67 return status; 68 } 69 tqp->tqp_stats.rcb_tx_ring_pktnum_rcd += 70 le32_to_cpu(desc.data[1]); 71 } 72 73 return 0; 74 } 75 76 static u64 *hclgevf_tqps_get_stats(struct hnae3_handle *handle, u64 *data) 77 { 78 struct hnae3_knic_private_info *kinfo = &handle->kinfo; 79 struct hclgevf_tqp *tqp; 80 u64 *buff = data; 81 int i; 82 83 for (i = 0; i < kinfo->num_tqps; i++) { 84 tqp = container_of(kinfo->tqp[i], struct hclgevf_tqp, q); 85 *buff++ = tqp->tqp_stats.rcb_tx_ring_pktnum_rcd; 86 } 87 for (i = 0; i < kinfo->num_tqps; i++) { 88 tqp = container_of(kinfo->tqp[i], struct hclgevf_tqp, q); 89 *buff++ = tqp->tqp_stats.rcb_rx_ring_pktnum_rcd; 90 } 91 92 return buff; 93 } 94 95 static int hclgevf_tqps_get_sset_count(struct hnae3_handle *handle, int strset) 96 { 97 struct hnae3_knic_private_info *kinfo = &handle->kinfo; 98 99 return kinfo->num_tqps * 2; 100 } 101 102 static u8 *hclgevf_tqps_get_strings(struct hnae3_handle *handle, u8 *data) 103 { 104 struct hnae3_knic_private_info *kinfo = &handle->kinfo; 105 u8 *buff = data; 106 int i = 0; 107 108 for (i = 0; i < kinfo->num_tqps; i++) { 109 struct hclgevf_tqp *tqp = container_of(kinfo->tqp[i], 110 struct hclgevf_tqp, q); 111 snprintf(buff, ETH_GSTRING_LEN, "txq%d_pktnum_rcd", 112 tqp->index); 113 buff += ETH_GSTRING_LEN; 114 } 115 116 for (i = 0; i < kinfo->num_tqps; i++) { 117 struct hclgevf_tqp *tqp = container_of(kinfo->tqp[i], 118 struct hclgevf_tqp, q); 119 snprintf(buff, ETH_GSTRING_LEN, "rxq%d_pktnum_rcd", 120 tqp->index); 121 buff += ETH_GSTRING_LEN; 122 } 123 124 return buff; 125 } 126 127 static void hclgevf_update_stats(struct hnae3_handle *handle, 128 struct net_device_stats *net_stats) 129 { 130 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 131 int status; 132 133 status = hclgevf_tqps_update_stats(handle); 134 if (status) 135 dev_err(&hdev->pdev->dev, 136 "VF update of TQPS stats fail, status = %d.\n", 137 status); 138 } 139 140 static int hclgevf_get_sset_count(struct hnae3_handle *handle, int strset) 141 { 142 if (strset == ETH_SS_TEST) 143 return -EOPNOTSUPP; 144 else if (strset == ETH_SS_STATS) 145 return hclgevf_tqps_get_sset_count(handle, strset); 146 147 return 0; 148 } 149 150 static void hclgevf_get_strings(struct hnae3_handle *handle, u32 strset, 151 u8 *data) 152 { 153 u8 *p = (char *)data; 154 155 if (strset == ETH_SS_STATS) 156 p = hclgevf_tqps_get_strings(handle, p); 157 } 158 159 static void hclgevf_get_stats(struct hnae3_handle *handle, u64 *data) 160 { 161 hclgevf_tqps_get_stats(handle, data); 162 } 163 164 static int hclgevf_get_tc_info(struct hclgevf_dev *hdev) 165 { 166 u8 resp_msg; 167 int status; 168 169 status = hclgevf_send_mbx_msg(hdev, HCLGE_MBX_GET_TCINFO, 0, NULL, 0, 170 true, &resp_msg, sizeof(u8)); 171 if (status) { 172 dev_err(&hdev->pdev->dev, 173 "VF request to get TC info from PF failed %d", 174 status); 175 return status; 176 } 177 178 hdev->hw_tc_map = resp_msg; 179 180 return 0; 181 } 182 183 static int hclgevf_get_queue_info(struct hclgevf_dev *hdev) 184 { 185 #define HCLGEVF_TQPS_RSS_INFO_LEN 8 186 u8 resp_msg[HCLGEVF_TQPS_RSS_INFO_LEN]; 187 int status; 188 189 status = hclgevf_send_mbx_msg(hdev, HCLGE_MBX_GET_QINFO, 0, NULL, 0, 190 true, resp_msg, 191 HCLGEVF_TQPS_RSS_INFO_LEN); 192 if (status) { 193 dev_err(&hdev->pdev->dev, 194 "VF request to get tqp info from PF failed %d", 195 status); 196 return status; 197 } 198 199 memcpy(&hdev->num_tqps, &resp_msg[0], sizeof(u16)); 200 memcpy(&hdev->rss_size_max, &resp_msg[2], sizeof(u16)); 201 memcpy(&hdev->num_desc, &resp_msg[4], sizeof(u16)); 202 memcpy(&hdev->rx_buf_len, &resp_msg[6], sizeof(u16)); 203 204 return 0; 205 } 206 207 static int hclgevf_alloc_tqps(struct hclgevf_dev *hdev) 208 { 209 struct hclgevf_tqp *tqp; 210 int i; 211 212 hdev->htqp = devm_kcalloc(&hdev->pdev->dev, hdev->num_tqps, 213 sizeof(struct hclgevf_tqp), GFP_KERNEL); 214 if (!hdev->htqp) 215 return -ENOMEM; 216 217 tqp = hdev->htqp; 218 219 for (i = 0; i < hdev->num_tqps; i++) { 220 tqp->dev = &hdev->pdev->dev; 221 tqp->index = i; 222 223 tqp->q.ae_algo = &ae_algovf; 224 tqp->q.buf_size = hdev->rx_buf_len; 225 tqp->q.desc_num = hdev->num_desc; 226 tqp->q.io_base = hdev->hw.io_base + HCLGEVF_TQP_REG_OFFSET + 227 i * HCLGEVF_TQP_REG_SIZE; 228 229 tqp++; 230 } 231 232 return 0; 233 } 234 235 static int hclgevf_knic_setup(struct hclgevf_dev *hdev) 236 { 237 struct hnae3_handle *nic = &hdev->nic; 238 struct hnae3_knic_private_info *kinfo; 239 u16 new_tqps = hdev->num_tqps; 240 int i; 241 242 kinfo = &nic->kinfo; 243 kinfo->num_tc = 0; 244 kinfo->num_desc = hdev->num_desc; 245 kinfo->rx_buf_len = hdev->rx_buf_len; 246 for (i = 0; i < HCLGEVF_MAX_TC_NUM; i++) 247 if (hdev->hw_tc_map & BIT(i)) 248 kinfo->num_tc++; 249 250 kinfo->rss_size 251 = min_t(u16, hdev->rss_size_max, new_tqps / kinfo->num_tc); 252 new_tqps = kinfo->rss_size * kinfo->num_tc; 253 kinfo->num_tqps = min(new_tqps, hdev->num_tqps); 254 255 kinfo->tqp = devm_kcalloc(&hdev->pdev->dev, kinfo->num_tqps, 256 sizeof(struct hnae3_queue *), GFP_KERNEL); 257 if (!kinfo->tqp) 258 return -ENOMEM; 259 260 for (i = 0; i < kinfo->num_tqps; i++) { 261 hdev->htqp[i].q.handle = &hdev->nic; 262 hdev->htqp[i].q.tqp_index = i; 263 kinfo->tqp[i] = &hdev->htqp[i].q; 264 } 265 266 return 0; 267 } 268 269 static void hclgevf_request_link_info(struct hclgevf_dev *hdev) 270 { 271 int status; 272 u8 resp_msg; 273 274 status = hclgevf_send_mbx_msg(hdev, HCLGE_MBX_GET_LINK_STATUS, 0, NULL, 275 0, false, &resp_msg, sizeof(u8)); 276 if (status) 277 dev_err(&hdev->pdev->dev, 278 "VF failed to fetch link status(%d) from PF", status); 279 } 280 281 void hclgevf_update_link_status(struct hclgevf_dev *hdev, int link_state) 282 { 283 struct hnae3_handle *handle = &hdev->nic; 284 struct hnae3_client *client; 285 286 client = handle->client; 287 288 link_state = 289 test_bit(HCLGEVF_STATE_DOWN, &hdev->state) ? 0 : link_state; 290 291 if (link_state != hdev->hw.mac.link) { 292 client->ops->link_status_change(handle, !!link_state); 293 hdev->hw.mac.link = link_state; 294 } 295 } 296 297 static int hclgevf_set_handle_info(struct hclgevf_dev *hdev) 298 { 299 struct hnae3_handle *nic = &hdev->nic; 300 int ret; 301 302 nic->ae_algo = &ae_algovf; 303 nic->pdev = hdev->pdev; 304 nic->numa_node_mask = hdev->numa_node_mask; 305 nic->flags |= HNAE3_SUPPORT_VF; 306 307 if (hdev->ae_dev->dev_type != HNAE3_DEV_KNIC) { 308 dev_err(&hdev->pdev->dev, "unsupported device type %d\n", 309 hdev->ae_dev->dev_type); 310 return -EINVAL; 311 } 312 313 ret = hclgevf_knic_setup(hdev); 314 if (ret) 315 dev_err(&hdev->pdev->dev, "VF knic setup failed %d\n", 316 ret); 317 return ret; 318 } 319 320 static void hclgevf_free_vector(struct hclgevf_dev *hdev, int vector_id) 321 { 322 if (hdev->vector_status[vector_id] == HCLGEVF_INVALID_VPORT) { 323 dev_warn(&hdev->pdev->dev, 324 "vector(vector_id %d) has been freed.\n", vector_id); 325 return; 326 } 327 328 hdev->vector_status[vector_id] = HCLGEVF_INVALID_VPORT; 329 hdev->num_msi_left += 1; 330 hdev->num_msi_used -= 1; 331 } 332 333 static int hclgevf_get_vector(struct hnae3_handle *handle, u16 vector_num, 334 struct hnae3_vector_info *vector_info) 335 { 336 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 337 struct hnae3_vector_info *vector = vector_info; 338 int alloc = 0; 339 int i, j; 340 341 vector_num = min(hdev->num_msi_left, vector_num); 342 343 for (j = 0; j < vector_num; j++) { 344 for (i = HCLGEVF_MISC_VECTOR_NUM + 1; i < hdev->num_msi; i++) { 345 if (hdev->vector_status[i] == HCLGEVF_INVALID_VPORT) { 346 vector->vector = pci_irq_vector(hdev->pdev, i); 347 vector->io_addr = hdev->hw.io_base + 348 HCLGEVF_VECTOR_REG_BASE + 349 (i - 1) * HCLGEVF_VECTOR_REG_OFFSET; 350 hdev->vector_status[i] = 0; 351 hdev->vector_irq[i] = vector->vector; 352 353 vector++; 354 alloc++; 355 356 break; 357 } 358 } 359 } 360 hdev->num_msi_left -= alloc; 361 hdev->num_msi_used += alloc; 362 363 return alloc; 364 } 365 366 static int hclgevf_get_vector_index(struct hclgevf_dev *hdev, int vector) 367 { 368 int i; 369 370 for (i = 0; i < hdev->num_msi; i++) 371 if (vector == hdev->vector_irq[i]) 372 return i; 373 374 return -EINVAL; 375 } 376 377 static int hclgevf_set_rss_algo_key(struct hclgevf_dev *hdev, 378 const u8 hfunc, const u8 *key) 379 { 380 struct hclgevf_rss_config_cmd *req; 381 struct hclgevf_desc desc; 382 int key_offset; 383 int key_size; 384 int ret; 385 386 req = (struct hclgevf_rss_config_cmd *)desc.data; 387 388 for (key_offset = 0; key_offset < 3; key_offset++) { 389 hclgevf_cmd_setup_basic_desc(&desc, 390 HCLGEVF_OPC_RSS_GENERIC_CONFIG, 391 false); 392 393 req->hash_config |= (hfunc & HCLGEVF_RSS_HASH_ALGO_MASK); 394 req->hash_config |= 395 (key_offset << HCLGEVF_RSS_HASH_KEY_OFFSET_B); 396 397 if (key_offset == 2) 398 key_size = 399 HCLGEVF_RSS_KEY_SIZE - HCLGEVF_RSS_HASH_KEY_NUM * 2; 400 else 401 key_size = HCLGEVF_RSS_HASH_KEY_NUM; 402 403 memcpy(req->hash_key, 404 key + key_offset * HCLGEVF_RSS_HASH_KEY_NUM, key_size); 405 406 ret = hclgevf_cmd_send(&hdev->hw, &desc, 1); 407 if (ret) { 408 dev_err(&hdev->pdev->dev, 409 "Configure RSS config fail, status = %d\n", 410 ret); 411 return ret; 412 } 413 } 414 415 return 0; 416 } 417 418 static u32 hclgevf_get_rss_key_size(struct hnae3_handle *handle) 419 { 420 return HCLGEVF_RSS_KEY_SIZE; 421 } 422 423 static u32 hclgevf_get_rss_indir_size(struct hnae3_handle *handle) 424 { 425 return HCLGEVF_RSS_IND_TBL_SIZE; 426 } 427 428 static int hclgevf_set_rss_indir_table(struct hclgevf_dev *hdev) 429 { 430 const u8 *indir = hdev->rss_cfg.rss_indirection_tbl; 431 struct hclgevf_rss_indirection_table_cmd *req; 432 struct hclgevf_desc desc; 433 int status; 434 int i, j; 435 436 req = (struct hclgevf_rss_indirection_table_cmd *)desc.data; 437 438 for (i = 0; i < HCLGEVF_RSS_CFG_TBL_NUM; i++) { 439 hclgevf_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_RSS_INDIR_TABLE, 440 false); 441 req->start_table_index = i * HCLGEVF_RSS_CFG_TBL_SIZE; 442 req->rss_set_bitmap = HCLGEVF_RSS_SET_BITMAP_MSK; 443 for (j = 0; j < HCLGEVF_RSS_CFG_TBL_SIZE; j++) 444 req->rss_result[j] = 445 indir[i * HCLGEVF_RSS_CFG_TBL_SIZE + j]; 446 447 status = hclgevf_cmd_send(&hdev->hw, &desc, 1); 448 if (status) { 449 dev_err(&hdev->pdev->dev, 450 "VF failed(=%d) to set RSS indirection table\n", 451 status); 452 return status; 453 } 454 } 455 456 return 0; 457 } 458 459 static int hclgevf_set_rss_tc_mode(struct hclgevf_dev *hdev, u16 rss_size) 460 { 461 struct hclgevf_rss_tc_mode_cmd *req; 462 u16 tc_offset[HCLGEVF_MAX_TC_NUM]; 463 u16 tc_valid[HCLGEVF_MAX_TC_NUM]; 464 u16 tc_size[HCLGEVF_MAX_TC_NUM]; 465 struct hclgevf_desc desc; 466 u16 roundup_size; 467 int status; 468 int i; 469 470 req = (struct hclgevf_rss_tc_mode_cmd *)desc.data; 471 472 roundup_size = roundup_pow_of_two(rss_size); 473 roundup_size = ilog2(roundup_size); 474 475 for (i = 0; i < HCLGEVF_MAX_TC_NUM; i++) { 476 tc_valid[i] = !!(hdev->hw_tc_map & BIT(i)); 477 tc_size[i] = roundup_size; 478 tc_offset[i] = rss_size * i; 479 } 480 481 hclgevf_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_RSS_TC_MODE, false); 482 for (i = 0; i < HCLGEVF_MAX_TC_NUM; i++) { 483 hnae3_set_bit(req->rss_tc_mode[i], HCLGEVF_RSS_TC_VALID_B, 484 (tc_valid[i] & 0x1)); 485 hnae3_set_field(req->rss_tc_mode[i], HCLGEVF_RSS_TC_SIZE_M, 486 HCLGEVF_RSS_TC_SIZE_S, tc_size[i]); 487 hnae3_set_field(req->rss_tc_mode[i], HCLGEVF_RSS_TC_OFFSET_M, 488 HCLGEVF_RSS_TC_OFFSET_S, tc_offset[i]); 489 } 490 status = hclgevf_cmd_send(&hdev->hw, &desc, 1); 491 if (status) 492 dev_err(&hdev->pdev->dev, 493 "VF failed(=%d) to set rss tc mode\n", status); 494 495 return status; 496 } 497 498 static int hclgevf_get_rss(struct hnae3_handle *handle, u32 *indir, u8 *key, 499 u8 *hfunc) 500 { 501 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 502 struct hclgevf_rss_cfg *rss_cfg = &hdev->rss_cfg; 503 int i; 504 505 if (handle->pdev->revision >= 0x21) { 506 /* Get hash algorithm */ 507 if (hfunc) { 508 switch (rss_cfg->hash_algo) { 509 case HCLGEVF_RSS_HASH_ALGO_TOEPLITZ: 510 *hfunc = ETH_RSS_HASH_TOP; 511 break; 512 case HCLGEVF_RSS_HASH_ALGO_SIMPLE: 513 *hfunc = ETH_RSS_HASH_XOR; 514 break; 515 default: 516 *hfunc = ETH_RSS_HASH_UNKNOWN; 517 break; 518 } 519 } 520 521 /* Get the RSS Key required by the user */ 522 if (key) 523 memcpy(key, rss_cfg->rss_hash_key, 524 HCLGEVF_RSS_KEY_SIZE); 525 } 526 527 if (indir) 528 for (i = 0; i < HCLGEVF_RSS_IND_TBL_SIZE; i++) 529 indir[i] = rss_cfg->rss_indirection_tbl[i]; 530 531 return 0; 532 } 533 534 static int hclgevf_set_rss(struct hnae3_handle *handle, const u32 *indir, 535 const u8 *key, const u8 hfunc) 536 { 537 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 538 struct hclgevf_rss_cfg *rss_cfg = &hdev->rss_cfg; 539 int ret, i; 540 541 if (handle->pdev->revision >= 0x21) { 542 /* Set the RSS Hash Key if specififed by the user */ 543 if (key) { 544 switch (hfunc) { 545 case ETH_RSS_HASH_TOP: 546 rss_cfg->hash_algo = 547 HCLGEVF_RSS_HASH_ALGO_TOEPLITZ; 548 break; 549 case ETH_RSS_HASH_XOR: 550 rss_cfg->hash_algo = 551 HCLGEVF_RSS_HASH_ALGO_SIMPLE; 552 break; 553 case ETH_RSS_HASH_NO_CHANGE: 554 break; 555 default: 556 return -EINVAL; 557 } 558 559 ret = hclgevf_set_rss_algo_key(hdev, rss_cfg->hash_algo, 560 key); 561 if (ret) 562 return ret; 563 564 /* Update the shadow RSS key with user specified qids */ 565 memcpy(rss_cfg->rss_hash_key, key, 566 HCLGEVF_RSS_KEY_SIZE); 567 } 568 } 569 570 /* update the shadow RSS table with user specified qids */ 571 for (i = 0; i < HCLGEVF_RSS_IND_TBL_SIZE; i++) 572 rss_cfg->rss_indirection_tbl[i] = indir[i]; 573 574 /* update the hardware */ 575 return hclgevf_set_rss_indir_table(hdev); 576 } 577 578 static u8 hclgevf_get_rss_hash_bits(struct ethtool_rxnfc *nfc) 579 { 580 u8 hash_sets = nfc->data & RXH_L4_B_0_1 ? HCLGEVF_S_PORT_BIT : 0; 581 582 if (nfc->data & RXH_L4_B_2_3) 583 hash_sets |= HCLGEVF_D_PORT_BIT; 584 else 585 hash_sets &= ~HCLGEVF_D_PORT_BIT; 586 587 if (nfc->data & RXH_IP_SRC) 588 hash_sets |= HCLGEVF_S_IP_BIT; 589 else 590 hash_sets &= ~HCLGEVF_S_IP_BIT; 591 592 if (nfc->data & RXH_IP_DST) 593 hash_sets |= HCLGEVF_D_IP_BIT; 594 else 595 hash_sets &= ~HCLGEVF_D_IP_BIT; 596 597 if (nfc->flow_type == SCTP_V4_FLOW || nfc->flow_type == SCTP_V6_FLOW) 598 hash_sets |= HCLGEVF_V_TAG_BIT; 599 600 return hash_sets; 601 } 602 603 static int hclgevf_set_rss_tuple(struct hnae3_handle *handle, 604 struct ethtool_rxnfc *nfc) 605 { 606 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 607 struct hclgevf_rss_cfg *rss_cfg = &hdev->rss_cfg; 608 struct hclgevf_rss_input_tuple_cmd *req; 609 struct hclgevf_desc desc; 610 u8 tuple_sets; 611 int ret; 612 613 if (handle->pdev->revision == 0x20) 614 return -EOPNOTSUPP; 615 616 if (nfc->data & 617 ~(RXH_IP_SRC | RXH_IP_DST | RXH_L4_B_0_1 | RXH_L4_B_2_3)) 618 return -EINVAL; 619 620 req = (struct hclgevf_rss_input_tuple_cmd *)desc.data; 621 hclgevf_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_RSS_INPUT_TUPLE, false); 622 623 req->ipv4_tcp_en = rss_cfg->rss_tuple_sets.ipv4_tcp_en; 624 req->ipv4_udp_en = rss_cfg->rss_tuple_sets.ipv4_udp_en; 625 req->ipv4_sctp_en = rss_cfg->rss_tuple_sets.ipv4_sctp_en; 626 req->ipv4_fragment_en = rss_cfg->rss_tuple_sets.ipv4_fragment_en; 627 req->ipv6_tcp_en = rss_cfg->rss_tuple_sets.ipv6_tcp_en; 628 req->ipv6_udp_en = rss_cfg->rss_tuple_sets.ipv6_udp_en; 629 req->ipv6_sctp_en = rss_cfg->rss_tuple_sets.ipv6_sctp_en; 630 req->ipv6_fragment_en = rss_cfg->rss_tuple_sets.ipv6_fragment_en; 631 632 tuple_sets = hclgevf_get_rss_hash_bits(nfc); 633 switch (nfc->flow_type) { 634 case TCP_V4_FLOW: 635 req->ipv4_tcp_en = tuple_sets; 636 break; 637 case TCP_V6_FLOW: 638 req->ipv6_tcp_en = tuple_sets; 639 break; 640 case UDP_V4_FLOW: 641 req->ipv4_udp_en = tuple_sets; 642 break; 643 case UDP_V6_FLOW: 644 req->ipv6_udp_en = tuple_sets; 645 break; 646 case SCTP_V4_FLOW: 647 req->ipv4_sctp_en = tuple_sets; 648 break; 649 case SCTP_V6_FLOW: 650 if ((nfc->data & RXH_L4_B_0_1) || 651 (nfc->data & RXH_L4_B_2_3)) 652 return -EINVAL; 653 654 req->ipv6_sctp_en = tuple_sets; 655 break; 656 case IPV4_FLOW: 657 req->ipv4_fragment_en = HCLGEVF_RSS_INPUT_TUPLE_OTHER; 658 break; 659 case IPV6_FLOW: 660 req->ipv6_fragment_en = HCLGEVF_RSS_INPUT_TUPLE_OTHER; 661 break; 662 default: 663 return -EINVAL; 664 } 665 666 ret = hclgevf_cmd_send(&hdev->hw, &desc, 1); 667 if (ret) { 668 dev_err(&hdev->pdev->dev, 669 "Set rss tuple fail, status = %d\n", ret); 670 return ret; 671 } 672 673 rss_cfg->rss_tuple_sets.ipv4_tcp_en = req->ipv4_tcp_en; 674 rss_cfg->rss_tuple_sets.ipv4_udp_en = req->ipv4_udp_en; 675 rss_cfg->rss_tuple_sets.ipv4_sctp_en = req->ipv4_sctp_en; 676 rss_cfg->rss_tuple_sets.ipv4_fragment_en = req->ipv4_fragment_en; 677 rss_cfg->rss_tuple_sets.ipv6_tcp_en = req->ipv6_tcp_en; 678 rss_cfg->rss_tuple_sets.ipv6_udp_en = req->ipv6_udp_en; 679 rss_cfg->rss_tuple_sets.ipv6_sctp_en = req->ipv6_sctp_en; 680 rss_cfg->rss_tuple_sets.ipv6_fragment_en = req->ipv6_fragment_en; 681 return 0; 682 } 683 684 static int hclgevf_get_rss_tuple(struct hnae3_handle *handle, 685 struct ethtool_rxnfc *nfc) 686 { 687 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 688 struct hclgevf_rss_cfg *rss_cfg = &hdev->rss_cfg; 689 u8 tuple_sets; 690 691 if (handle->pdev->revision == 0x20) 692 return -EOPNOTSUPP; 693 694 nfc->data = 0; 695 696 switch (nfc->flow_type) { 697 case TCP_V4_FLOW: 698 tuple_sets = rss_cfg->rss_tuple_sets.ipv4_tcp_en; 699 break; 700 case UDP_V4_FLOW: 701 tuple_sets = rss_cfg->rss_tuple_sets.ipv4_udp_en; 702 break; 703 case TCP_V6_FLOW: 704 tuple_sets = rss_cfg->rss_tuple_sets.ipv6_tcp_en; 705 break; 706 case UDP_V6_FLOW: 707 tuple_sets = rss_cfg->rss_tuple_sets.ipv6_udp_en; 708 break; 709 case SCTP_V4_FLOW: 710 tuple_sets = rss_cfg->rss_tuple_sets.ipv4_sctp_en; 711 break; 712 case SCTP_V6_FLOW: 713 tuple_sets = rss_cfg->rss_tuple_sets.ipv6_sctp_en; 714 break; 715 case IPV4_FLOW: 716 case IPV6_FLOW: 717 tuple_sets = HCLGEVF_S_IP_BIT | HCLGEVF_D_IP_BIT; 718 break; 719 default: 720 return -EINVAL; 721 } 722 723 if (!tuple_sets) 724 return 0; 725 726 if (tuple_sets & HCLGEVF_D_PORT_BIT) 727 nfc->data |= RXH_L4_B_2_3; 728 if (tuple_sets & HCLGEVF_S_PORT_BIT) 729 nfc->data |= RXH_L4_B_0_1; 730 if (tuple_sets & HCLGEVF_D_IP_BIT) 731 nfc->data |= RXH_IP_DST; 732 if (tuple_sets & HCLGEVF_S_IP_BIT) 733 nfc->data |= RXH_IP_SRC; 734 735 return 0; 736 } 737 738 static int hclgevf_set_rss_input_tuple(struct hclgevf_dev *hdev, 739 struct hclgevf_rss_cfg *rss_cfg) 740 { 741 struct hclgevf_rss_input_tuple_cmd *req; 742 struct hclgevf_desc desc; 743 int ret; 744 745 hclgevf_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_RSS_INPUT_TUPLE, false); 746 747 req = (struct hclgevf_rss_input_tuple_cmd *)desc.data; 748 749 req->ipv4_tcp_en = rss_cfg->rss_tuple_sets.ipv4_tcp_en; 750 req->ipv4_udp_en = rss_cfg->rss_tuple_sets.ipv4_udp_en; 751 req->ipv4_sctp_en = rss_cfg->rss_tuple_sets.ipv4_sctp_en; 752 req->ipv4_fragment_en = rss_cfg->rss_tuple_sets.ipv4_fragment_en; 753 req->ipv6_tcp_en = rss_cfg->rss_tuple_sets.ipv6_tcp_en; 754 req->ipv6_udp_en = rss_cfg->rss_tuple_sets.ipv6_udp_en; 755 req->ipv6_sctp_en = rss_cfg->rss_tuple_sets.ipv6_sctp_en; 756 req->ipv6_fragment_en = rss_cfg->rss_tuple_sets.ipv6_fragment_en; 757 758 ret = hclgevf_cmd_send(&hdev->hw, &desc, 1); 759 if (ret) 760 dev_err(&hdev->pdev->dev, 761 "Configure rss input fail, status = %d\n", ret); 762 return ret; 763 } 764 765 static int hclgevf_get_tc_size(struct hnae3_handle *handle) 766 { 767 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 768 struct hclgevf_rss_cfg *rss_cfg = &hdev->rss_cfg; 769 770 return rss_cfg->rss_size; 771 } 772 773 static int hclgevf_bind_ring_to_vector(struct hnae3_handle *handle, bool en, 774 int vector_id, 775 struct hnae3_ring_chain_node *ring_chain) 776 { 777 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 778 struct hnae3_ring_chain_node *node; 779 struct hclge_mbx_vf_to_pf_cmd *req; 780 struct hclgevf_desc desc; 781 int i = 0; 782 int status; 783 u8 type; 784 785 req = (struct hclge_mbx_vf_to_pf_cmd *)desc.data; 786 787 for (node = ring_chain; node; node = node->next) { 788 int idx_offset = HCLGE_MBX_RING_MAP_BASIC_MSG_NUM + 789 HCLGE_MBX_RING_NODE_VARIABLE_NUM * i; 790 791 if (i == 0) { 792 hclgevf_cmd_setup_basic_desc(&desc, 793 HCLGEVF_OPC_MBX_VF_TO_PF, 794 false); 795 type = en ? 796 HCLGE_MBX_MAP_RING_TO_VECTOR : 797 HCLGE_MBX_UNMAP_RING_TO_VECTOR; 798 req->msg[0] = type; 799 req->msg[1] = vector_id; 800 } 801 802 req->msg[idx_offset] = 803 hnae3_get_bit(node->flag, HNAE3_RING_TYPE_B); 804 req->msg[idx_offset + 1] = node->tqp_index; 805 req->msg[idx_offset + 2] = hnae3_get_field(node->int_gl_idx, 806 HNAE3_RING_GL_IDX_M, 807 HNAE3_RING_GL_IDX_S); 808 809 i++; 810 if ((i == (HCLGE_MBX_VF_MSG_DATA_NUM - 811 HCLGE_MBX_RING_MAP_BASIC_MSG_NUM) / 812 HCLGE_MBX_RING_NODE_VARIABLE_NUM) || 813 !node->next) { 814 req->msg[2] = i; 815 816 status = hclgevf_cmd_send(&hdev->hw, &desc, 1); 817 if (status) { 818 dev_err(&hdev->pdev->dev, 819 "Map TQP fail, status is %d.\n", 820 status); 821 return status; 822 } 823 i = 0; 824 hclgevf_cmd_setup_basic_desc(&desc, 825 HCLGEVF_OPC_MBX_VF_TO_PF, 826 false); 827 req->msg[0] = type; 828 req->msg[1] = vector_id; 829 } 830 } 831 832 return 0; 833 } 834 835 static int hclgevf_map_ring_to_vector(struct hnae3_handle *handle, int vector, 836 struct hnae3_ring_chain_node *ring_chain) 837 { 838 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 839 int vector_id; 840 841 vector_id = hclgevf_get_vector_index(hdev, vector); 842 if (vector_id < 0) { 843 dev_err(&handle->pdev->dev, 844 "Get vector index fail. ret =%d\n", vector_id); 845 return vector_id; 846 } 847 848 return hclgevf_bind_ring_to_vector(handle, true, vector_id, ring_chain); 849 } 850 851 static int hclgevf_unmap_ring_from_vector( 852 struct hnae3_handle *handle, 853 int vector, 854 struct hnae3_ring_chain_node *ring_chain) 855 { 856 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 857 int ret, vector_id; 858 859 if (test_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state)) 860 return 0; 861 862 vector_id = hclgevf_get_vector_index(hdev, vector); 863 if (vector_id < 0) { 864 dev_err(&handle->pdev->dev, 865 "Get vector index fail. ret =%d\n", vector_id); 866 return vector_id; 867 } 868 869 ret = hclgevf_bind_ring_to_vector(handle, false, vector_id, ring_chain); 870 if (ret) 871 dev_err(&handle->pdev->dev, 872 "Unmap ring from vector fail. vector=%d, ret =%d\n", 873 vector_id, 874 ret); 875 876 return ret; 877 } 878 879 static int hclgevf_put_vector(struct hnae3_handle *handle, int vector) 880 { 881 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 882 int vector_id; 883 884 vector_id = hclgevf_get_vector_index(hdev, vector); 885 if (vector_id < 0) { 886 dev_err(&handle->pdev->dev, 887 "hclgevf_put_vector get vector index fail. ret =%d\n", 888 vector_id); 889 return vector_id; 890 } 891 892 hclgevf_free_vector(hdev, vector_id); 893 894 return 0; 895 } 896 897 static int hclgevf_cmd_set_promisc_mode(struct hclgevf_dev *hdev, 898 bool en_uc_pmc, bool en_mc_pmc) 899 { 900 struct hclge_mbx_vf_to_pf_cmd *req; 901 struct hclgevf_desc desc; 902 int status; 903 904 req = (struct hclge_mbx_vf_to_pf_cmd *)desc.data; 905 906 hclgevf_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_MBX_VF_TO_PF, false); 907 req->msg[0] = HCLGE_MBX_SET_PROMISC_MODE; 908 req->msg[1] = en_uc_pmc ? 1 : 0; 909 req->msg[2] = en_mc_pmc ? 1 : 0; 910 911 status = hclgevf_cmd_send(&hdev->hw, &desc, 1); 912 if (status) 913 dev_err(&hdev->pdev->dev, 914 "Set promisc mode fail, status is %d.\n", status); 915 916 return status; 917 } 918 919 static int hclgevf_set_promisc_mode(struct hnae3_handle *handle, 920 bool en_uc_pmc, bool en_mc_pmc) 921 { 922 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 923 924 return hclgevf_cmd_set_promisc_mode(hdev, en_uc_pmc, en_mc_pmc); 925 } 926 927 static int hclgevf_tqp_enable(struct hclgevf_dev *hdev, int tqp_id, 928 int stream_id, bool enable) 929 { 930 struct hclgevf_cfg_com_tqp_queue_cmd *req; 931 struct hclgevf_desc desc; 932 int status; 933 934 req = (struct hclgevf_cfg_com_tqp_queue_cmd *)desc.data; 935 936 hclgevf_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_CFG_COM_TQP_QUEUE, 937 false); 938 req->tqp_id = cpu_to_le16(tqp_id & HCLGEVF_RING_ID_MASK); 939 req->stream_id = cpu_to_le16(stream_id); 940 req->enable |= enable << HCLGEVF_TQP_ENABLE_B; 941 942 status = hclgevf_cmd_send(&hdev->hw, &desc, 1); 943 if (status) 944 dev_err(&hdev->pdev->dev, 945 "TQP enable fail, status =%d.\n", status); 946 947 return status; 948 } 949 950 static void hclgevf_reset_tqp_stats(struct hnae3_handle *handle) 951 { 952 struct hnae3_knic_private_info *kinfo = &handle->kinfo; 953 struct hclgevf_tqp *tqp; 954 int i; 955 956 for (i = 0; i < kinfo->num_tqps; i++) { 957 tqp = container_of(kinfo->tqp[i], struct hclgevf_tqp, q); 958 memset(&tqp->tqp_stats, 0, sizeof(tqp->tqp_stats)); 959 } 960 } 961 962 static void hclgevf_get_mac_addr(struct hnae3_handle *handle, u8 *p) 963 { 964 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 965 966 ether_addr_copy(p, hdev->hw.mac.mac_addr); 967 } 968 969 static int hclgevf_set_mac_addr(struct hnae3_handle *handle, void *p, 970 bool is_first) 971 { 972 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 973 u8 *old_mac_addr = (u8 *)hdev->hw.mac.mac_addr; 974 u8 *new_mac_addr = (u8 *)p; 975 u8 msg_data[ETH_ALEN * 2]; 976 u16 subcode; 977 int status; 978 979 ether_addr_copy(msg_data, new_mac_addr); 980 ether_addr_copy(&msg_data[ETH_ALEN], old_mac_addr); 981 982 subcode = is_first ? HCLGE_MBX_MAC_VLAN_UC_ADD : 983 HCLGE_MBX_MAC_VLAN_UC_MODIFY; 984 985 status = hclgevf_send_mbx_msg(hdev, HCLGE_MBX_SET_UNICAST, 986 subcode, msg_data, ETH_ALEN * 2, 987 true, NULL, 0); 988 if (!status) 989 ether_addr_copy(hdev->hw.mac.mac_addr, new_mac_addr); 990 991 return status; 992 } 993 994 static int hclgevf_add_uc_addr(struct hnae3_handle *handle, 995 const unsigned char *addr) 996 { 997 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 998 999 return hclgevf_send_mbx_msg(hdev, HCLGE_MBX_SET_UNICAST, 1000 HCLGE_MBX_MAC_VLAN_UC_ADD, 1001 addr, ETH_ALEN, false, NULL, 0); 1002 } 1003 1004 static int hclgevf_rm_uc_addr(struct hnae3_handle *handle, 1005 const unsigned char *addr) 1006 { 1007 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 1008 1009 return hclgevf_send_mbx_msg(hdev, HCLGE_MBX_SET_UNICAST, 1010 HCLGE_MBX_MAC_VLAN_UC_REMOVE, 1011 addr, ETH_ALEN, false, NULL, 0); 1012 } 1013 1014 static int hclgevf_add_mc_addr(struct hnae3_handle *handle, 1015 const unsigned char *addr) 1016 { 1017 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 1018 1019 return hclgevf_send_mbx_msg(hdev, HCLGE_MBX_SET_MULTICAST, 1020 HCLGE_MBX_MAC_VLAN_MC_ADD, 1021 addr, ETH_ALEN, false, NULL, 0); 1022 } 1023 1024 static int hclgevf_rm_mc_addr(struct hnae3_handle *handle, 1025 const unsigned char *addr) 1026 { 1027 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 1028 1029 return hclgevf_send_mbx_msg(hdev, HCLGE_MBX_SET_MULTICAST, 1030 HCLGE_MBX_MAC_VLAN_MC_REMOVE, 1031 addr, ETH_ALEN, false, NULL, 0); 1032 } 1033 1034 static int hclgevf_set_vlan_filter(struct hnae3_handle *handle, 1035 __be16 proto, u16 vlan_id, 1036 bool is_kill) 1037 { 1038 #define HCLGEVF_VLAN_MBX_MSG_LEN 5 1039 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 1040 u8 msg_data[HCLGEVF_VLAN_MBX_MSG_LEN]; 1041 1042 if (vlan_id > 4095) 1043 return -EINVAL; 1044 1045 if (proto != htons(ETH_P_8021Q)) 1046 return -EPROTONOSUPPORT; 1047 1048 msg_data[0] = is_kill; 1049 memcpy(&msg_data[1], &vlan_id, sizeof(vlan_id)); 1050 memcpy(&msg_data[3], &proto, sizeof(proto)); 1051 return hclgevf_send_mbx_msg(hdev, HCLGE_MBX_SET_VLAN, 1052 HCLGE_MBX_VLAN_FILTER, msg_data, 1053 HCLGEVF_VLAN_MBX_MSG_LEN, false, NULL, 0); 1054 } 1055 1056 static int hclgevf_en_hw_strip_rxvtag(struct hnae3_handle *handle, bool enable) 1057 { 1058 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 1059 u8 msg_data; 1060 1061 msg_data = enable ? 1 : 0; 1062 return hclgevf_send_mbx_msg(hdev, HCLGE_MBX_SET_VLAN, 1063 HCLGE_MBX_VLAN_RX_OFF_CFG, &msg_data, 1064 1, false, NULL, 0); 1065 } 1066 1067 static int hclgevf_reset_tqp(struct hnae3_handle *handle, u16 queue_id) 1068 { 1069 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 1070 u8 msg_data[2]; 1071 int ret; 1072 1073 memcpy(&msg_data[0], &queue_id, sizeof(queue_id)); 1074 1075 /* disable vf queue before send queue reset msg to PF */ 1076 ret = hclgevf_tqp_enable(hdev, queue_id, 0, false); 1077 if (ret) 1078 return ret; 1079 1080 return hclgevf_send_mbx_msg(hdev, HCLGE_MBX_QUEUE_RESET, 0, msg_data, 1081 2, true, NULL, 0); 1082 } 1083 1084 static int hclgevf_notify_client(struct hclgevf_dev *hdev, 1085 enum hnae3_reset_notify_type type) 1086 { 1087 struct hnae3_client *client = hdev->nic_client; 1088 struct hnae3_handle *handle = &hdev->nic; 1089 1090 if (!client->ops->reset_notify) 1091 return -EOPNOTSUPP; 1092 1093 return client->ops->reset_notify(handle, type); 1094 } 1095 1096 static int hclgevf_reset_wait(struct hclgevf_dev *hdev) 1097 { 1098 #define HCLGEVF_RESET_WAIT_US 20000 1099 #define HCLGEVF_RESET_WAIT_CNT 2000 1100 #define HCLGEVF_RESET_WAIT_TIMEOUT_US \ 1101 (HCLGEVF_RESET_WAIT_US * HCLGEVF_RESET_WAIT_CNT) 1102 1103 u32 val; 1104 int ret; 1105 1106 /* wait to check the hardware reset completion status */ 1107 val = hclgevf_read_dev(&hdev->hw, HCLGEVF_RST_ING); 1108 dev_info(&hdev->pdev->dev, "checking vf resetting status: %x\n", val); 1109 1110 ret = readl_poll_timeout(hdev->hw.io_base + HCLGEVF_RST_ING, val, 1111 !(val & HCLGEVF_RST_ING_BITS), 1112 HCLGEVF_RESET_WAIT_US, 1113 HCLGEVF_RESET_WAIT_TIMEOUT_US); 1114 1115 /* hardware completion status should be available by this time */ 1116 if (ret) { 1117 dev_err(&hdev->pdev->dev, 1118 "could'nt get reset done status from h/w, timeout!\n"); 1119 return ret; 1120 } 1121 1122 /* we will wait a bit more to let reset of the stack to complete. This 1123 * might happen in case reset assertion was made by PF. Yes, this also 1124 * means we might end up waiting bit more even for VF reset. 1125 */ 1126 msleep(5000); 1127 1128 return 0; 1129 } 1130 1131 static int hclgevf_reset_stack(struct hclgevf_dev *hdev) 1132 { 1133 int ret; 1134 1135 /* uninitialize the nic client */ 1136 hclgevf_notify_client(hdev, HNAE3_UNINIT_CLIENT); 1137 1138 /* re-initialize the hclge device */ 1139 ret = hclgevf_reset_hdev(hdev); 1140 if (ret) { 1141 dev_err(&hdev->pdev->dev, 1142 "hclge device re-init failed, VF is disabled!\n"); 1143 return ret; 1144 } 1145 1146 /* bring up the nic client again */ 1147 hclgevf_notify_client(hdev, HNAE3_INIT_CLIENT); 1148 1149 return 0; 1150 } 1151 1152 static int hclgevf_reset_prepare_wait(struct hclgevf_dev *hdev) 1153 { 1154 int ret = 0; 1155 1156 switch (hdev->reset_type) { 1157 case HNAE3_VF_FUNC_RESET: 1158 ret = hclgevf_send_mbx_msg(hdev, HCLGE_MBX_RESET, 0, NULL, 1159 0, true, NULL, sizeof(u8)); 1160 break; 1161 default: 1162 break; 1163 } 1164 1165 set_bit(HCLGEVF_STATE_CMD_DISABLE, &hdev->state); 1166 1167 dev_info(&hdev->pdev->dev, "prepare reset(%d) wait done, ret:%d\n", 1168 hdev->reset_type, ret); 1169 1170 return ret; 1171 } 1172 1173 static int hclgevf_reset(struct hclgevf_dev *hdev) 1174 { 1175 struct hnae3_ae_dev *ae_dev = pci_get_drvdata(hdev->pdev); 1176 int ret; 1177 1178 /* Initialize ae_dev reset status as well, in case enet layer wants to 1179 * know if device is undergoing reset 1180 */ 1181 ae_dev->reset_type = hdev->reset_type; 1182 hdev->reset_count++; 1183 rtnl_lock(); 1184 1185 /* bring down the nic to stop any ongoing TX/RX */ 1186 hclgevf_notify_client(hdev, HNAE3_DOWN_CLIENT); 1187 1188 rtnl_unlock(); 1189 1190 hclgevf_reset_prepare_wait(hdev); 1191 1192 /* check if VF could successfully fetch the hardware reset completion 1193 * status from the hardware 1194 */ 1195 ret = hclgevf_reset_wait(hdev); 1196 if (ret) { 1197 /* can't do much in this situation, will disable VF */ 1198 dev_err(&hdev->pdev->dev, 1199 "VF failed(=%d) to fetch H/W reset completion status\n", 1200 ret); 1201 1202 dev_warn(&hdev->pdev->dev, "VF reset failed, disabling VF!\n"); 1203 rtnl_lock(); 1204 hclgevf_notify_client(hdev, HNAE3_UNINIT_CLIENT); 1205 1206 rtnl_unlock(); 1207 return ret; 1208 } 1209 1210 rtnl_lock(); 1211 1212 /* now, re-initialize the nic client and ae device*/ 1213 ret = hclgevf_reset_stack(hdev); 1214 if (ret) 1215 dev_err(&hdev->pdev->dev, "failed to reset VF stack\n"); 1216 1217 /* bring up the nic to enable TX/RX again */ 1218 hclgevf_notify_client(hdev, HNAE3_UP_CLIENT); 1219 1220 rtnl_unlock(); 1221 1222 return ret; 1223 } 1224 1225 static enum hnae3_reset_type hclgevf_get_reset_level(struct hclgevf_dev *hdev, 1226 unsigned long *addr) 1227 { 1228 enum hnae3_reset_type rst_level = HNAE3_NONE_RESET; 1229 1230 /* return the highest priority reset level amongst all */ 1231 if (test_bit(HNAE3_VF_RESET, addr)) { 1232 rst_level = HNAE3_VF_RESET; 1233 clear_bit(HNAE3_VF_RESET, addr); 1234 clear_bit(HNAE3_VF_PF_FUNC_RESET, addr); 1235 clear_bit(HNAE3_VF_FUNC_RESET, addr); 1236 } else if (test_bit(HNAE3_VF_FULL_RESET, addr)) { 1237 rst_level = HNAE3_VF_FULL_RESET; 1238 clear_bit(HNAE3_VF_FULL_RESET, addr); 1239 clear_bit(HNAE3_VF_FUNC_RESET, addr); 1240 } else if (test_bit(HNAE3_VF_PF_FUNC_RESET, addr)) { 1241 rst_level = HNAE3_VF_PF_FUNC_RESET; 1242 clear_bit(HNAE3_VF_PF_FUNC_RESET, addr); 1243 clear_bit(HNAE3_VF_FUNC_RESET, addr); 1244 } else if (test_bit(HNAE3_VF_FUNC_RESET, addr)) { 1245 rst_level = HNAE3_VF_FUNC_RESET; 1246 clear_bit(HNAE3_VF_FUNC_RESET, addr); 1247 } 1248 1249 return rst_level; 1250 } 1251 1252 static void hclgevf_reset_event(struct pci_dev *pdev, 1253 struct hnae3_handle *handle) 1254 { 1255 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 1256 1257 dev_info(&hdev->pdev->dev, "received reset request from VF enet\n"); 1258 1259 if (!hdev->default_reset_request) 1260 hdev->reset_level = 1261 hclgevf_get_reset_level(hdev, 1262 &hdev->default_reset_request); 1263 else 1264 hdev->reset_level = HNAE3_VF_FUNC_RESET; 1265 1266 /* reset of this VF requested */ 1267 set_bit(HCLGEVF_RESET_REQUESTED, &hdev->reset_state); 1268 hclgevf_reset_task_schedule(hdev); 1269 1270 hdev->last_reset_time = jiffies; 1271 } 1272 1273 static void hclgevf_set_def_reset_request(struct hnae3_ae_dev *ae_dev, 1274 enum hnae3_reset_type rst_type) 1275 { 1276 struct hclgevf_dev *hdev = ae_dev->priv; 1277 1278 set_bit(rst_type, &hdev->default_reset_request); 1279 } 1280 1281 static u32 hclgevf_get_fw_version(struct hnae3_handle *handle) 1282 { 1283 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 1284 1285 return hdev->fw_version; 1286 } 1287 1288 static void hclgevf_get_misc_vector(struct hclgevf_dev *hdev) 1289 { 1290 struct hclgevf_misc_vector *vector = &hdev->misc_vector; 1291 1292 vector->vector_irq = pci_irq_vector(hdev->pdev, 1293 HCLGEVF_MISC_VECTOR_NUM); 1294 vector->addr = hdev->hw.io_base + HCLGEVF_MISC_VECTOR_REG_BASE; 1295 /* vector status always valid for Vector 0 */ 1296 hdev->vector_status[HCLGEVF_MISC_VECTOR_NUM] = 0; 1297 hdev->vector_irq[HCLGEVF_MISC_VECTOR_NUM] = vector->vector_irq; 1298 1299 hdev->num_msi_left -= 1; 1300 hdev->num_msi_used += 1; 1301 } 1302 1303 void hclgevf_reset_task_schedule(struct hclgevf_dev *hdev) 1304 { 1305 if (!test_bit(HCLGEVF_STATE_RST_SERVICE_SCHED, &hdev->state) && 1306 !test_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state)) { 1307 set_bit(HCLGEVF_STATE_RST_SERVICE_SCHED, &hdev->state); 1308 schedule_work(&hdev->rst_service_task); 1309 } 1310 } 1311 1312 void hclgevf_mbx_task_schedule(struct hclgevf_dev *hdev) 1313 { 1314 if (!test_bit(HCLGEVF_STATE_MBX_SERVICE_SCHED, &hdev->state) && 1315 !test_bit(HCLGEVF_STATE_MBX_HANDLING, &hdev->state)) { 1316 set_bit(HCLGEVF_STATE_MBX_SERVICE_SCHED, &hdev->state); 1317 schedule_work(&hdev->mbx_service_task); 1318 } 1319 } 1320 1321 static void hclgevf_task_schedule(struct hclgevf_dev *hdev) 1322 { 1323 if (!test_bit(HCLGEVF_STATE_DOWN, &hdev->state) && 1324 !test_and_set_bit(HCLGEVF_STATE_SERVICE_SCHED, &hdev->state)) 1325 schedule_work(&hdev->service_task); 1326 } 1327 1328 static void hclgevf_deferred_task_schedule(struct hclgevf_dev *hdev) 1329 { 1330 /* if we have any pending mailbox event then schedule the mbx task */ 1331 if (hdev->mbx_event_pending) 1332 hclgevf_mbx_task_schedule(hdev); 1333 1334 if (test_bit(HCLGEVF_RESET_PENDING, &hdev->reset_state)) 1335 hclgevf_reset_task_schedule(hdev); 1336 } 1337 1338 static void hclgevf_service_timer(struct timer_list *t) 1339 { 1340 struct hclgevf_dev *hdev = from_timer(hdev, t, service_timer); 1341 1342 mod_timer(&hdev->service_timer, jiffies + 5 * HZ); 1343 1344 hclgevf_task_schedule(hdev); 1345 } 1346 1347 static void hclgevf_reset_service_task(struct work_struct *work) 1348 { 1349 struct hclgevf_dev *hdev = 1350 container_of(work, struct hclgevf_dev, rst_service_task); 1351 int ret; 1352 1353 if (test_and_set_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state)) 1354 return; 1355 1356 clear_bit(HCLGEVF_STATE_RST_SERVICE_SCHED, &hdev->state); 1357 1358 if (test_and_clear_bit(HCLGEVF_RESET_PENDING, 1359 &hdev->reset_state)) { 1360 /* PF has initmated that it is about to reset the hardware. 1361 * We now have to poll & check if harware has actually completed 1362 * the reset sequence. On hardware reset completion, VF needs to 1363 * reset the client and ae device. 1364 */ 1365 hdev->reset_attempts = 0; 1366 1367 hdev->last_reset_time = jiffies; 1368 while ((hdev->reset_type = 1369 hclgevf_get_reset_level(hdev, &hdev->reset_pending)) 1370 != HNAE3_NONE_RESET) { 1371 ret = hclgevf_reset(hdev); 1372 if (ret) 1373 dev_err(&hdev->pdev->dev, 1374 "VF stack reset failed %d.\n", ret); 1375 } 1376 } else if (test_and_clear_bit(HCLGEVF_RESET_REQUESTED, 1377 &hdev->reset_state)) { 1378 /* we could be here when either of below happens: 1379 * 1. reset was initiated due to watchdog timeout due to 1380 * a. IMP was earlier reset and our TX got choked down and 1381 * which resulted in watchdog reacting and inducing VF 1382 * reset. This also means our cmdq would be unreliable. 1383 * b. problem in TX due to other lower layer(example link 1384 * layer not functioning properly etc.) 1385 * 2. VF reset might have been initiated due to some config 1386 * change. 1387 * 1388 * NOTE: Theres no clear way to detect above cases than to react 1389 * to the response of PF for this reset request. PF will ack the 1390 * 1b and 2. cases but we will not get any intimation about 1a 1391 * from PF as cmdq would be in unreliable state i.e. mailbox 1392 * communication between PF and VF would be broken. 1393 */ 1394 1395 /* if we are never geting into pending state it means either: 1396 * 1. PF is not receiving our request which could be due to IMP 1397 * reset 1398 * 2. PF is screwed 1399 * We cannot do much for 2. but to check first we can try reset 1400 * our PCIe + stack and see if it alleviates the problem. 1401 */ 1402 if (hdev->reset_attempts > 3) { 1403 /* prepare for full reset of stack + pcie interface */ 1404 set_bit(HNAE3_VF_FULL_RESET, &hdev->reset_pending); 1405 1406 /* "defer" schedule the reset task again */ 1407 set_bit(HCLGEVF_RESET_PENDING, &hdev->reset_state); 1408 } else { 1409 hdev->reset_attempts++; 1410 1411 set_bit(hdev->reset_level, &hdev->reset_pending); 1412 set_bit(HCLGEVF_RESET_PENDING, &hdev->reset_state); 1413 } 1414 hclgevf_reset_task_schedule(hdev); 1415 } 1416 1417 clear_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state); 1418 } 1419 1420 static void hclgevf_mailbox_service_task(struct work_struct *work) 1421 { 1422 struct hclgevf_dev *hdev; 1423 1424 hdev = container_of(work, struct hclgevf_dev, mbx_service_task); 1425 1426 if (test_and_set_bit(HCLGEVF_STATE_MBX_HANDLING, &hdev->state)) 1427 return; 1428 1429 clear_bit(HCLGEVF_STATE_MBX_SERVICE_SCHED, &hdev->state); 1430 1431 hclgevf_mbx_async_handler(hdev); 1432 1433 clear_bit(HCLGEVF_STATE_MBX_HANDLING, &hdev->state); 1434 } 1435 1436 static void hclgevf_service_task(struct work_struct *work) 1437 { 1438 struct hclgevf_dev *hdev; 1439 1440 hdev = container_of(work, struct hclgevf_dev, service_task); 1441 1442 /* request the link status from the PF. PF would be able to tell VF 1443 * about such updates in future so we might remove this later 1444 */ 1445 hclgevf_request_link_info(hdev); 1446 1447 hclgevf_deferred_task_schedule(hdev); 1448 1449 clear_bit(HCLGEVF_STATE_SERVICE_SCHED, &hdev->state); 1450 } 1451 1452 static void hclgevf_clear_event_cause(struct hclgevf_dev *hdev, u32 regclr) 1453 { 1454 hclgevf_write_dev(&hdev->hw, HCLGEVF_VECTOR0_CMDQ_SRC_REG, regclr); 1455 } 1456 1457 static enum hclgevf_evt_cause hclgevf_check_evt_cause(struct hclgevf_dev *hdev, 1458 u32 *clearval) 1459 { 1460 u32 cmdq_src_reg, rst_ing_reg; 1461 1462 /* fetch the events from their corresponding regs */ 1463 cmdq_src_reg = hclgevf_read_dev(&hdev->hw, 1464 HCLGEVF_VECTOR0_CMDQ_SRC_REG); 1465 1466 if (BIT(HCLGEVF_VECTOR0_RST_INT_B) & cmdq_src_reg) { 1467 rst_ing_reg = hclgevf_read_dev(&hdev->hw, HCLGEVF_RST_ING); 1468 dev_info(&hdev->pdev->dev, 1469 "receive reset interrupt 0x%x!\n", rst_ing_reg); 1470 set_bit(HNAE3_VF_RESET, &hdev->reset_pending); 1471 set_bit(HCLGEVF_RESET_PENDING, &hdev->reset_state); 1472 set_bit(HCLGEVF_STATE_CMD_DISABLE, &hdev->state); 1473 cmdq_src_reg &= ~BIT(HCLGEVF_VECTOR0_RST_INT_B); 1474 *clearval = cmdq_src_reg; 1475 return HCLGEVF_VECTOR0_EVENT_RST; 1476 } 1477 1478 /* check for vector0 mailbox(=CMDQ RX) event source */ 1479 if (BIT(HCLGEVF_VECTOR0_RX_CMDQ_INT_B) & cmdq_src_reg) { 1480 cmdq_src_reg &= ~BIT(HCLGEVF_VECTOR0_RX_CMDQ_INT_B); 1481 *clearval = cmdq_src_reg; 1482 return HCLGEVF_VECTOR0_EVENT_MBX; 1483 } 1484 1485 dev_dbg(&hdev->pdev->dev, "vector 0 interrupt from unknown source\n"); 1486 1487 return HCLGEVF_VECTOR0_EVENT_OTHER; 1488 } 1489 1490 static void hclgevf_enable_vector(struct hclgevf_misc_vector *vector, bool en) 1491 { 1492 writel(en ? 1 : 0, vector->addr); 1493 } 1494 1495 static irqreturn_t hclgevf_misc_irq_handle(int irq, void *data) 1496 { 1497 enum hclgevf_evt_cause event_cause; 1498 struct hclgevf_dev *hdev = data; 1499 u32 clearval; 1500 1501 hclgevf_enable_vector(&hdev->misc_vector, false); 1502 event_cause = hclgevf_check_evt_cause(hdev, &clearval); 1503 1504 switch (event_cause) { 1505 case HCLGEVF_VECTOR0_EVENT_RST: 1506 hclgevf_reset_task_schedule(hdev); 1507 break; 1508 case HCLGEVF_VECTOR0_EVENT_MBX: 1509 hclgevf_mbx_handler(hdev); 1510 break; 1511 default: 1512 break; 1513 } 1514 1515 if (event_cause != HCLGEVF_VECTOR0_EVENT_OTHER) { 1516 hclgevf_clear_event_cause(hdev, clearval); 1517 hclgevf_enable_vector(&hdev->misc_vector, true); 1518 } 1519 1520 return IRQ_HANDLED; 1521 } 1522 1523 static int hclgevf_configure(struct hclgevf_dev *hdev) 1524 { 1525 int ret; 1526 1527 hdev->hw.mac.media_type = HNAE3_MEDIA_TYPE_NONE; 1528 1529 /* get queue configuration from PF */ 1530 ret = hclgevf_get_queue_info(hdev); 1531 if (ret) 1532 return ret; 1533 /* get tc configuration from PF */ 1534 return hclgevf_get_tc_info(hdev); 1535 } 1536 1537 static int hclgevf_alloc_hdev(struct hnae3_ae_dev *ae_dev) 1538 { 1539 struct pci_dev *pdev = ae_dev->pdev; 1540 struct hclgevf_dev *hdev = ae_dev->priv; 1541 1542 hdev = devm_kzalloc(&pdev->dev, sizeof(*hdev), GFP_KERNEL); 1543 if (!hdev) 1544 return -ENOMEM; 1545 1546 hdev->pdev = pdev; 1547 hdev->ae_dev = ae_dev; 1548 ae_dev->priv = hdev; 1549 1550 return 0; 1551 } 1552 1553 static int hclgevf_init_roce_base_info(struct hclgevf_dev *hdev) 1554 { 1555 struct hnae3_handle *roce = &hdev->roce; 1556 struct hnae3_handle *nic = &hdev->nic; 1557 1558 roce->rinfo.num_vectors = hdev->num_roce_msix; 1559 1560 if (hdev->num_msi_left < roce->rinfo.num_vectors || 1561 hdev->num_msi_left == 0) 1562 return -EINVAL; 1563 1564 roce->rinfo.base_vector = hdev->roce_base_vector; 1565 1566 roce->rinfo.netdev = nic->kinfo.netdev; 1567 roce->rinfo.roce_io_base = hdev->hw.io_base; 1568 1569 roce->pdev = nic->pdev; 1570 roce->ae_algo = nic->ae_algo; 1571 roce->numa_node_mask = nic->numa_node_mask; 1572 1573 return 0; 1574 } 1575 1576 static int hclgevf_rss_init_hw(struct hclgevf_dev *hdev) 1577 { 1578 struct hclgevf_rss_cfg *rss_cfg = &hdev->rss_cfg; 1579 int i, ret; 1580 1581 rss_cfg->rss_size = hdev->rss_size_max; 1582 1583 if (hdev->pdev->revision >= 0x21) { 1584 rss_cfg->hash_algo = HCLGEVF_RSS_HASH_ALGO_TOEPLITZ; 1585 netdev_rss_key_fill(rss_cfg->rss_hash_key, 1586 HCLGEVF_RSS_KEY_SIZE); 1587 1588 ret = hclgevf_set_rss_algo_key(hdev, rss_cfg->hash_algo, 1589 rss_cfg->rss_hash_key); 1590 if (ret) 1591 return ret; 1592 1593 rss_cfg->rss_tuple_sets.ipv4_tcp_en = 1594 HCLGEVF_RSS_INPUT_TUPLE_OTHER; 1595 rss_cfg->rss_tuple_sets.ipv4_udp_en = 1596 HCLGEVF_RSS_INPUT_TUPLE_OTHER; 1597 rss_cfg->rss_tuple_sets.ipv4_sctp_en = 1598 HCLGEVF_RSS_INPUT_TUPLE_SCTP; 1599 rss_cfg->rss_tuple_sets.ipv4_fragment_en = 1600 HCLGEVF_RSS_INPUT_TUPLE_OTHER; 1601 rss_cfg->rss_tuple_sets.ipv6_tcp_en = 1602 HCLGEVF_RSS_INPUT_TUPLE_OTHER; 1603 rss_cfg->rss_tuple_sets.ipv6_udp_en = 1604 HCLGEVF_RSS_INPUT_TUPLE_OTHER; 1605 rss_cfg->rss_tuple_sets.ipv6_sctp_en = 1606 HCLGEVF_RSS_INPUT_TUPLE_SCTP; 1607 rss_cfg->rss_tuple_sets.ipv6_fragment_en = 1608 HCLGEVF_RSS_INPUT_TUPLE_OTHER; 1609 1610 ret = hclgevf_set_rss_input_tuple(hdev, rss_cfg); 1611 if (ret) 1612 return ret; 1613 1614 } 1615 1616 /* Initialize RSS indirect table for each vport */ 1617 for (i = 0; i < HCLGEVF_RSS_IND_TBL_SIZE; i++) 1618 rss_cfg->rss_indirection_tbl[i] = i % hdev->rss_size_max; 1619 1620 ret = hclgevf_set_rss_indir_table(hdev); 1621 if (ret) 1622 return ret; 1623 1624 return hclgevf_set_rss_tc_mode(hdev, hdev->rss_size_max); 1625 } 1626 1627 static int hclgevf_init_vlan_config(struct hclgevf_dev *hdev) 1628 { 1629 /* other vlan config(like, VLAN TX/RX offload) would also be added 1630 * here later 1631 */ 1632 return hclgevf_set_vlan_filter(&hdev->nic, htons(ETH_P_8021Q), 0, 1633 false); 1634 } 1635 1636 static int hclgevf_ae_start(struct hnae3_handle *handle) 1637 { 1638 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 1639 1640 /* reset tqp stats */ 1641 hclgevf_reset_tqp_stats(handle); 1642 1643 hclgevf_request_link_info(hdev); 1644 1645 clear_bit(HCLGEVF_STATE_DOWN, &hdev->state); 1646 mod_timer(&hdev->service_timer, jiffies + HZ); 1647 1648 return 0; 1649 } 1650 1651 static void hclgevf_ae_stop(struct hnae3_handle *handle) 1652 { 1653 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 1654 1655 set_bit(HCLGEVF_STATE_DOWN, &hdev->state); 1656 1657 /* reset tqp stats */ 1658 hclgevf_reset_tqp_stats(handle); 1659 del_timer_sync(&hdev->service_timer); 1660 cancel_work_sync(&hdev->service_task); 1661 clear_bit(HCLGEVF_STATE_SERVICE_SCHED, &hdev->state); 1662 hclgevf_update_link_status(hdev, 0); 1663 } 1664 1665 static void hclgevf_state_init(struct hclgevf_dev *hdev) 1666 { 1667 /* setup tasks for the MBX */ 1668 INIT_WORK(&hdev->mbx_service_task, hclgevf_mailbox_service_task); 1669 clear_bit(HCLGEVF_STATE_MBX_SERVICE_SCHED, &hdev->state); 1670 clear_bit(HCLGEVF_STATE_MBX_HANDLING, &hdev->state); 1671 1672 /* setup tasks for service timer */ 1673 timer_setup(&hdev->service_timer, hclgevf_service_timer, 0); 1674 1675 INIT_WORK(&hdev->service_task, hclgevf_service_task); 1676 clear_bit(HCLGEVF_STATE_SERVICE_SCHED, &hdev->state); 1677 1678 INIT_WORK(&hdev->rst_service_task, hclgevf_reset_service_task); 1679 1680 mutex_init(&hdev->mbx_resp.mbx_mutex); 1681 1682 /* bring the device down */ 1683 set_bit(HCLGEVF_STATE_DOWN, &hdev->state); 1684 } 1685 1686 static void hclgevf_state_uninit(struct hclgevf_dev *hdev) 1687 { 1688 set_bit(HCLGEVF_STATE_DOWN, &hdev->state); 1689 1690 if (hdev->service_timer.function) 1691 del_timer_sync(&hdev->service_timer); 1692 if (hdev->service_task.func) 1693 cancel_work_sync(&hdev->service_task); 1694 if (hdev->mbx_service_task.func) 1695 cancel_work_sync(&hdev->mbx_service_task); 1696 if (hdev->rst_service_task.func) 1697 cancel_work_sync(&hdev->rst_service_task); 1698 1699 mutex_destroy(&hdev->mbx_resp.mbx_mutex); 1700 } 1701 1702 static int hclgevf_init_msi(struct hclgevf_dev *hdev) 1703 { 1704 struct pci_dev *pdev = hdev->pdev; 1705 int vectors; 1706 int i; 1707 1708 if (hnae3_get_bit(hdev->ae_dev->flag, HNAE3_DEV_SUPPORT_ROCE_B)) 1709 vectors = pci_alloc_irq_vectors(pdev, 1710 hdev->roce_base_msix_offset + 1, 1711 hdev->num_msi, 1712 PCI_IRQ_MSIX); 1713 else 1714 vectors = pci_alloc_irq_vectors(pdev, 1, hdev->num_msi, 1715 PCI_IRQ_MSI | PCI_IRQ_MSIX); 1716 1717 if (vectors < 0) { 1718 dev_err(&pdev->dev, 1719 "failed(%d) to allocate MSI/MSI-X vectors\n", 1720 vectors); 1721 return vectors; 1722 } 1723 if (vectors < hdev->num_msi) 1724 dev_warn(&hdev->pdev->dev, 1725 "requested %d MSI/MSI-X, but allocated %d MSI/MSI-X\n", 1726 hdev->num_msi, vectors); 1727 1728 hdev->num_msi = vectors; 1729 hdev->num_msi_left = vectors; 1730 hdev->base_msi_vector = pdev->irq; 1731 hdev->roce_base_vector = pdev->irq + hdev->roce_base_msix_offset; 1732 1733 hdev->vector_status = devm_kcalloc(&pdev->dev, hdev->num_msi, 1734 sizeof(u16), GFP_KERNEL); 1735 if (!hdev->vector_status) { 1736 pci_free_irq_vectors(pdev); 1737 return -ENOMEM; 1738 } 1739 1740 for (i = 0; i < hdev->num_msi; i++) 1741 hdev->vector_status[i] = HCLGEVF_INVALID_VPORT; 1742 1743 hdev->vector_irq = devm_kcalloc(&pdev->dev, hdev->num_msi, 1744 sizeof(int), GFP_KERNEL); 1745 if (!hdev->vector_irq) { 1746 pci_free_irq_vectors(pdev); 1747 return -ENOMEM; 1748 } 1749 1750 return 0; 1751 } 1752 1753 static void hclgevf_uninit_msi(struct hclgevf_dev *hdev) 1754 { 1755 struct pci_dev *pdev = hdev->pdev; 1756 1757 pci_free_irq_vectors(pdev); 1758 } 1759 1760 static int hclgevf_misc_irq_init(struct hclgevf_dev *hdev) 1761 { 1762 int ret = 0; 1763 1764 hclgevf_get_misc_vector(hdev); 1765 1766 ret = request_irq(hdev->misc_vector.vector_irq, hclgevf_misc_irq_handle, 1767 0, "hclgevf_cmd", hdev); 1768 if (ret) { 1769 dev_err(&hdev->pdev->dev, "VF failed to request misc irq(%d)\n", 1770 hdev->misc_vector.vector_irq); 1771 return ret; 1772 } 1773 1774 hclgevf_clear_event_cause(hdev, 0); 1775 1776 /* enable misc. vector(vector 0) */ 1777 hclgevf_enable_vector(&hdev->misc_vector, true); 1778 1779 return ret; 1780 } 1781 1782 static void hclgevf_misc_irq_uninit(struct hclgevf_dev *hdev) 1783 { 1784 /* disable misc vector(vector 0) */ 1785 hclgevf_enable_vector(&hdev->misc_vector, false); 1786 synchronize_irq(hdev->misc_vector.vector_irq); 1787 free_irq(hdev->misc_vector.vector_irq, hdev); 1788 hclgevf_free_vector(hdev, 0); 1789 } 1790 1791 static int hclgevf_init_client_instance(struct hnae3_client *client, 1792 struct hnae3_ae_dev *ae_dev) 1793 { 1794 struct hclgevf_dev *hdev = ae_dev->priv; 1795 int ret; 1796 1797 switch (client->type) { 1798 case HNAE3_CLIENT_KNIC: 1799 hdev->nic_client = client; 1800 hdev->nic.client = client; 1801 1802 ret = client->ops->init_instance(&hdev->nic); 1803 if (ret) 1804 goto clear_nic; 1805 1806 hnae3_set_client_init_flag(client, ae_dev, 1); 1807 1808 if (hdev->roce_client && hnae3_dev_roce_supported(hdev)) { 1809 struct hnae3_client *rc = hdev->roce_client; 1810 1811 ret = hclgevf_init_roce_base_info(hdev); 1812 if (ret) 1813 goto clear_roce; 1814 ret = rc->ops->init_instance(&hdev->roce); 1815 if (ret) 1816 goto clear_roce; 1817 1818 hnae3_set_client_init_flag(hdev->roce_client, ae_dev, 1819 1); 1820 } 1821 break; 1822 case HNAE3_CLIENT_UNIC: 1823 hdev->nic_client = client; 1824 hdev->nic.client = client; 1825 1826 ret = client->ops->init_instance(&hdev->nic); 1827 if (ret) 1828 goto clear_nic; 1829 1830 hnae3_set_client_init_flag(client, ae_dev, 1); 1831 break; 1832 case HNAE3_CLIENT_ROCE: 1833 if (hnae3_dev_roce_supported(hdev)) { 1834 hdev->roce_client = client; 1835 hdev->roce.client = client; 1836 } 1837 1838 if (hdev->roce_client && hdev->nic_client) { 1839 ret = hclgevf_init_roce_base_info(hdev); 1840 if (ret) 1841 goto clear_roce; 1842 1843 ret = client->ops->init_instance(&hdev->roce); 1844 if (ret) 1845 goto clear_roce; 1846 } 1847 1848 hnae3_set_client_init_flag(client, ae_dev, 1); 1849 break; 1850 default: 1851 return -EINVAL; 1852 } 1853 1854 return 0; 1855 1856 clear_nic: 1857 hdev->nic_client = NULL; 1858 hdev->nic.client = NULL; 1859 return ret; 1860 clear_roce: 1861 hdev->roce_client = NULL; 1862 hdev->roce.client = NULL; 1863 return ret; 1864 } 1865 1866 static void hclgevf_uninit_client_instance(struct hnae3_client *client, 1867 struct hnae3_ae_dev *ae_dev) 1868 { 1869 struct hclgevf_dev *hdev = ae_dev->priv; 1870 1871 /* un-init roce, if it exists */ 1872 if (hdev->roce_client) { 1873 hdev->roce_client->ops->uninit_instance(&hdev->roce, 0); 1874 hdev->roce_client = NULL; 1875 hdev->roce.client = NULL; 1876 } 1877 1878 /* un-init nic/unic, if this was not called by roce client */ 1879 if (client->ops->uninit_instance && hdev->nic_client && 1880 client->type != HNAE3_CLIENT_ROCE) { 1881 client->ops->uninit_instance(&hdev->nic, 0); 1882 hdev->nic_client = NULL; 1883 hdev->nic.client = NULL; 1884 } 1885 } 1886 1887 static int hclgevf_pci_init(struct hclgevf_dev *hdev) 1888 { 1889 struct pci_dev *pdev = hdev->pdev; 1890 struct hclgevf_hw *hw; 1891 int ret; 1892 1893 ret = pci_enable_device(pdev); 1894 if (ret) { 1895 dev_err(&pdev->dev, "failed to enable PCI device\n"); 1896 return ret; 1897 } 1898 1899 ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); 1900 if (ret) { 1901 dev_err(&pdev->dev, "can't set consistent PCI DMA, exiting"); 1902 goto err_disable_device; 1903 } 1904 1905 ret = pci_request_regions(pdev, HCLGEVF_DRIVER_NAME); 1906 if (ret) { 1907 dev_err(&pdev->dev, "PCI request regions failed %d\n", ret); 1908 goto err_disable_device; 1909 } 1910 1911 pci_set_master(pdev); 1912 hw = &hdev->hw; 1913 hw->hdev = hdev; 1914 hw->io_base = pci_iomap(pdev, 2, 0); 1915 if (!hw->io_base) { 1916 dev_err(&pdev->dev, "can't map configuration register space\n"); 1917 ret = -ENOMEM; 1918 goto err_clr_master; 1919 } 1920 1921 return 0; 1922 1923 err_clr_master: 1924 pci_clear_master(pdev); 1925 pci_release_regions(pdev); 1926 err_disable_device: 1927 pci_disable_device(pdev); 1928 1929 return ret; 1930 } 1931 1932 static void hclgevf_pci_uninit(struct hclgevf_dev *hdev) 1933 { 1934 struct pci_dev *pdev = hdev->pdev; 1935 1936 pci_iounmap(pdev, hdev->hw.io_base); 1937 pci_clear_master(pdev); 1938 pci_release_regions(pdev); 1939 pci_disable_device(pdev); 1940 } 1941 1942 static int hclgevf_query_vf_resource(struct hclgevf_dev *hdev) 1943 { 1944 struct hclgevf_query_res_cmd *req; 1945 struct hclgevf_desc desc; 1946 int ret; 1947 1948 hclgevf_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_QUERY_VF_RSRC, true); 1949 ret = hclgevf_cmd_send(&hdev->hw, &desc, 1); 1950 if (ret) { 1951 dev_err(&hdev->pdev->dev, 1952 "query vf resource failed, ret = %d.\n", ret); 1953 return ret; 1954 } 1955 1956 req = (struct hclgevf_query_res_cmd *)desc.data; 1957 1958 if (hnae3_get_bit(hdev->ae_dev->flag, HNAE3_DEV_SUPPORT_ROCE_B)) { 1959 hdev->roce_base_msix_offset = 1960 hnae3_get_field(__le16_to_cpu(req->msixcap_localid_ba_rocee), 1961 HCLGEVF_MSIX_OFT_ROCEE_M, 1962 HCLGEVF_MSIX_OFT_ROCEE_S); 1963 hdev->num_roce_msix = 1964 hnae3_get_field(__le16_to_cpu(req->vf_intr_vector_number), 1965 HCLGEVF_VEC_NUM_M, HCLGEVF_VEC_NUM_S); 1966 1967 /* VF should have NIC vectors and Roce vectors, NIC vectors 1968 * are queued before Roce vectors. The offset is fixed to 64. 1969 */ 1970 hdev->num_msi = hdev->num_roce_msix + 1971 hdev->roce_base_msix_offset; 1972 } else { 1973 hdev->num_msi = 1974 hnae3_get_field(__le16_to_cpu(req->vf_intr_vector_number), 1975 HCLGEVF_VEC_NUM_M, HCLGEVF_VEC_NUM_S); 1976 } 1977 1978 return 0; 1979 } 1980 1981 static int hclgevf_reset_hdev(struct hclgevf_dev *hdev) 1982 { 1983 struct pci_dev *pdev = hdev->pdev; 1984 int ret; 1985 1986 ret = hclgevf_cmd_init(hdev); 1987 if (ret) { 1988 dev_err(&pdev->dev, "cmd failed %d\n", ret); 1989 return ret; 1990 } 1991 1992 ret = hclgevf_rss_init_hw(hdev); 1993 if (ret) { 1994 dev_err(&hdev->pdev->dev, 1995 "failed(%d) to initialize RSS\n", ret); 1996 return ret; 1997 } 1998 1999 ret = hclgevf_init_vlan_config(hdev); 2000 if (ret) { 2001 dev_err(&hdev->pdev->dev, 2002 "failed(%d) to initialize VLAN config\n", ret); 2003 return ret; 2004 } 2005 2006 dev_info(&hdev->pdev->dev, "Reset done\n"); 2007 2008 return 0; 2009 } 2010 2011 static int hclgevf_init_hdev(struct hclgevf_dev *hdev) 2012 { 2013 struct pci_dev *pdev = hdev->pdev; 2014 int ret; 2015 2016 ret = hclgevf_pci_init(hdev); 2017 if (ret) { 2018 dev_err(&pdev->dev, "PCI initialization failed\n"); 2019 return ret; 2020 } 2021 2022 ret = hclgevf_cmd_queue_init(hdev); 2023 if (ret) { 2024 dev_err(&pdev->dev, "Cmd queue init failed: %d\n", ret); 2025 goto err_cmd_queue_init; 2026 } 2027 2028 ret = hclgevf_cmd_init(hdev); 2029 if (ret) 2030 goto err_cmd_init; 2031 2032 /* Get vf resource */ 2033 ret = hclgevf_query_vf_resource(hdev); 2034 if (ret) { 2035 dev_err(&hdev->pdev->dev, 2036 "Query vf status error, ret = %d.\n", ret); 2037 goto err_cmd_init; 2038 } 2039 2040 ret = hclgevf_init_msi(hdev); 2041 if (ret) { 2042 dev_err(&pdev->dev, "failed(%d) to init MSI/MSI-X\n", ret); 2043 goto err_cmd_init; 2044 } 2045 2046 hclgevf_state_init(hdev); 2047 hdev->reset_level = HNAE3_VF_FUNC_RESET; 2048 2049 ret = hclgevf_misc_irq_init(hdev); 2050 if (ret) { 2051 dev_err(&pdev->dev, "failed(%d) to init Misc IRQ(vector0)\n", 2052 ret); 2053 goto err_misc_irq_init; 2054 } 2055 2056 ret = hclgevf_configure(hdev); 2057 if (ret) { 2058 dev_err(&pdev->dev, "failed(%d) to fetch configuration\n", ret); 2059 goto err_config; 2060 } 2061 2062 ret = hclgevf_alloc_tqps(hdev); 2063 if (ret) { 2064 dev_err(&pdev->dev, "failed(%d) to allocate TQPs\n", ret); 2065 goto err_config; 2066 } 2067 2068 ret = hclgevf_set_handle_info(hdev); 2069 if (ret) { 2070 dev_err(&pdev->dev, "failed(%d) to set handle info\n", ret); 2071 goto err_config; 2072 } 2073 2074 /* Initialize RSS for this VF */ 2075 ret = hclgevf_rss_init_hw(hdev); 2076 if (ret) { 2077 dev_err(&hdev->pdev->dev, 2078 "failed(%d) to initialize RSS\n", ret); 2079 goto err_config; 2080 } 2081 2082 ret = hclgevf_init_vlan_config(hdev); 2083 if (ret) { 2084 dev_err(&hdev->pdev->dev, 2085 "failed(%d) to initialize VLAN config\n", ret); 2086 goto err_config; 2087 } 2088 2089 hdev->last_reset_time = jiffies; 2090 pr_info("finished initializing %s driver\n", HCLGEVF_DRIVER_NAME); 2091 2092 return 0; 2093 2094 err_config: 2095 hclgevf_misc_irq_uninit(hdev); 2096 err_misc_irq_init: 2097 hclgevf_state_uninit(hdev); 2098 hclgevf_uninit_msi(hdev); 2099 err_cmd_init: 2100 hclgevf_cmd_uninit(hdev); 2101 err_cmd_queue_init: 2102 hclgevf_pci_uninit(hdev); 2103 return ret; 2104 } 2105 2106 static void hclgevf_uninit_hdev(struct hclgevf_dev *hdev) 2107 { 2108 hclgevf_state_uninit(hdev); 2109 hclgevf_misc_irq_uninit(hdev); 2110 hclgevf_cmd_uninit(hdev); 2111 hclgevf_uninit_msi(hdev); 2112 hclgevf_pci_uninit(hdev); 2113 } 2114 2115 static int hclgevf_init_ae_dev(struct hnae3_ae_dev *ae_dev) 2116 { 2117 struct pci_dev *pdev = ae_dev->pdev; 2118 int ret; 2119 2120 ret = hclgevf_alloc_hdev(ae_dev); 2121 if (ret) { 2122 dev_err(&pdev->dev, "hclge device allocation failed\n"); 2123 return ret; 2124 } 2125 2126 ret = hclgevf_init_hdev(ae_dev->priv); 2127 if (ret) 2128 dev_err(&pdev->dev, "hclge device initialization failed\n"); 2129 2130 return ret; 2131 } 2132 2133 static void hclgevf_uninit_ae_dev(struct hnae3_ae_dev *ae_dev) 2134 { 2135 struct hclgevf_dev *hdev = ae_dev->priv; 2136 2137 hclgevf_uninit_hdev(hdev); 2138 ae_dev->priv = NULL; 2139 } 2140 2141 static u32 hclgevf_get_max_channels(struct hclgevf_dev *hdev) 2142 { 2143 struct hnae3_handle *nic = &hdev->nic; 2144 struct hnae3_knic_private_info *kinfo = &nic->kinfo; 2145 2146 return min_t(u32, hdev->rss_size_max * kinfo->num_tc, hdev->num_tqps); 2147 } 2148 2149 /** 2150 * hclgevf_get_channels - Get the current channels enabled and max supported. 2151 * @handle: hardware information for network interface 2152 * @ch: ethtool channels structure 2153 * 2154 * We don't support separate tx and rx queues as channels. The other count 2155 * represents how many queues are being used for control. max_combined counts 2156 * how many queue pairs we can support. They may not be mapped 1 to 1 with 2157 * q_vectors since we support a lot more queue pairs than q_vectors. 2158 **/ 2159 static void hclgevf_get_channels(struct hnae3_handle *handle, 2160 struct ethtool_channels *ch) 2161 { 2162 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 2163 2164 ch->max_combined = hclgevf_get_max_channels(hdev); 2165 ch->other_count = 0; 2166 ch->max_other = 0; 2167 ch->combined_count = hdev->num_tqps; 2168 } 2169 2170 static void hclgevf_get_tqps_and_rss_info(struct hnae3_handle *handle, 2171 u16 *alloc_tqps, u16 *max_rss_size) 2172 { 2173 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 2174 2175 *alloc_tqps = hdev->num_tqps; 2176 *max_rss_size = hdev->rss_size_max; 2177 } 2178 2179 static int hclgevf_get_status(struct hnae3_handle *handle) 2180 { 2181 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 2182 2183 return hdev->hw.mac.link; 2184 } 2185 2186 static void hclgevf_get_ksettings_an_result(struct hnae3_handle *handle, 2187 u8 *auto_neg, u32 *speed, 2188 u8 *duplex) 2189 { 2190 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 2191 2192 if (speed) 2193 *speed = hdev->hw.mac.speed; 2194 if (duplex) 2195 *duplex = hdev->hw.mac.duplex; 2196 if (auto_neg) 2197 *auto_neg = AUTONEG_DISABLE; 2198 } 2199 2200 void hclgevf_update_speed_duplex(struct hclgevf_dev *hdev, u32 speed, 2201 u8 duplex) 2202 { 2203 hdev->hw.mac.speed = speed; 2204 hdev->hw.mac.duplex = duplex; 2205 } 2206 2207 static void hclgevf_get_media_type(struct hnae3_handle *handle, 2208 u8 *media_type) 2209 { 2210 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 2211 if (media_type) 2212 *media_type = hdev->hw.mac.media_type; 2213 } 2214 2215 static bool hclgevf_get_hw_reset_stat(struct hnae3_handle *handle) 2216 { 2217 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 2218 2219 return !!hclgevf_read_dev(&hdev->hw, HCLGEVF_RST_ING); 2220 } 2221 2222 static bool hclgevf_ae_dev_resetting(struct hnae3_handle *handle) 2223 { 2224 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 2225 2226 return test_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state); 2227 } 2228 2229 static unsigned long hclgevf_ae_dev_reset_cnt(struct hnae3_handle *handle) 2230 { 2231 struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle); 2232 2233 return hdev->reset_count; 2234 } 2235 2236 static const struct hnae3_ae_ops hclgevf_ops = { 2237 .init_ae_dev = hclgevf_init_ae_dev, 2238 .uninit_ae_dev = hclgevf_uninit_ae_dev, 2239 .init_client_instance = hclgevf_init_client_instance, 2240 .uninit_client_instance = hclgevf_uninit_client_instance, 2241 .start = hclgevf_ae_start, 2242 .stop = hclgevf_ae_stop, 2243 .map_ring_to_vector = hclgevf_map_ring_to_vector, 2244 .unmap_ring_from_vector = hclgevf_unmap_ring_from_vector, 2245 .get_vector = hclgevf_get_vector, 2246 .put_vector = hclgevf_put_vector, 2247 .reset_queue = hclgevf_reset_tqp, 2248 .set_promisc_mode = hclgevf_set_promisc_mode, 2249 .get_mac_addr = hclgevf_get_mac_addr, 2250 .set_mac_addr = hclgevf_set_mac_addr, 2251 .add_uc_addr = hclgevf_add_uc_addr, 2252 .rm_uc_addr = hclgevf_rm_uc_addr, 2253 .add_mc_addr = hclgevf_add_mc_addr, 2254 .rm_mc_addr = hclgevf_rm_mc_addr, 2255 .get_stats = hclgevf_get_stats, 2256 .update_stats = hclgevf_update_stats, 2257 .get_strings = hclgevf_get_strings, 2258 .get_sset_count = hclgevf_get_sset_count, 2259 .get_rss_key_size = hclgevf_get_rss_key_size, 2260 .get_rss_indir_size = hclgevf_get_rss_indir_size, 2261 .get_rss = hclgevf_get_rss, 2262 .set_rss = hclgevf_set_rss, 2263 .get_rss_tuple = hclgevf_get_rss_tuple, 2264 .set_rss_tuple = hclgevf_set_rss_tuple, 2265 .get_tc_size = hclgevf_get_tc_size, 2266 .get_fw_version = hclgevf_get_fw_version, 2267 .set_vlan_filter = hclgevf_set_vlan_filter, 2268 .enable_hw_strip_rxvtag = hclgevf_en_hw_strip_rxvtag, 2269 .reset_event = hclgevf_reset_event, 2270 .set_default_reset_request = hclgevf_set_def_reset_request, 2271 .get_channels = hclgevf_get_channels, 2272 .get_tqps_and_rss_info = hclgevf_get_tqps_and_rss_info, 2273 .get_status = hclgevf_get_status, 2274 .get_ksettings_an_result = hclgevf_get_ksettings_an_result, 2275 .get_media_type = hclgevf_get_media_type, 2276 .get_hw_reset_stat = hclgevf_get_hw_reset_stat, 2277 .ae_dev_resetting = hclgevf_ae_dev_resetting, 2278 .ae_dev_reset_cnt = hclgevf_ae_dev_reset_cnt, 2279 }; 2280 2281 static struct hnae3_ae_algo ae_algovf = { 2282 .ops = &hclgevf_ops, 2283 .pdev_id_table = ae_algovf_pci_tbl, 2284 }; 2285 2286 static int hclgevf_init(void) 2287 { 2288 pr_info("%s is initializing\n", HCLGEVF_NAME); 2289 2290 hnae3_register_ae_algo(&ae_algovf); 2291 2292 return 0; 2293 } 2294 2295 static void hclgevf_exit(void) 2296 { 2297 hnae3_unregister_ae_algo(&ae_algovf); 2298 } 2299 module_init(hclgevf_init); 2300 module_exit(hclgevf_exit); 2301 2302 MODULE_LICENSE("GPL"); 2303 MODULE_AUTHOR("Huawei Tech. Co., Ltd."); 2304 MODULE_DESCRIPTION("HCLGEVF Driver"); 2305 MODULE_VERSION(HCLGEVF_MOD_VERSION); 2306