1 // SPDX-License-Identifier: GPL-2.0+ 2 // Copyright (c) 2016-2017 Hisilicon Limited. 3 4 #include <linux/etherdevice.h> 5 #include <linux/string.h> 6 #include <linux/phy.h> 7 8 #include "hns3_enet.h" 9 10 struct hns3_stats { 11 char stats_string[ETH_GSTRING_LEN]; 12 int stats_offset; 13 }; 14 15 /* tqp related stats */ 16 #define HNS3_TQP_STAT(_string, _member) { \ 17 .stats_string = _string, \ 18 .stats_offset = offsetof(struct hns3_enet_ring, stats) +\ 19 offsetof(struct ring_stats, _member), \ 20 } 21 22 static const struct hns3_stats hns3_txq_stats[] = { 23 /* Tx per-queue statistics */ 24 HNS3_TQP_STAT("io_err_cnt", io_err_cnt), 25 HNS3_TQP_STAT("dropped", sw_err_cnt), 26 HNS3_TQP_STAT("seg_pkt_cnt", seg_pkt_cnt), 27 HNS3_TQP_STAT("packets", tx_pkts), 28 HNS3_TQP_STAT("bytes", tx_bytes), 29 HNS3_TQP_STAT("errors", tx_err_cnt), 30 HNS3_TQP_STAT("wake", restart_queue), 31 HNS3_TQP_STAT("busy", tx_busy), 32 }; 33 34 #define HNS3_TXQ_STATS_COUNT ARRAY_SIZE(hns3_txq_stats) 35 36 static const struct hns3_stats hns3_rxq_stats[] = { 37 /* Rx per-queue statistics */ 38 HNS3_TQP_STAT("io_err_cnt", io_err_cnt), 39 HNS3_TQP_STAT("dropped", sw_err_cnt), 40 HNS3_TQP_STAT("seg_pkt_cnt", seg_pkt_cnt), 41 HNS3_TQP_STAT("packets", rx_pkts), 42 HNS3_TQP_STAT("bytes", rx_bytes), 43 HNS3_TQP_STAT("errors", rx_err_cnt), 44 HNS3_TQP_STAT("reuse_pg_cnt", reuse_pg_cnt), 45 HNS3_TQP_STAT("err_pkt_len", err_pkt_len), 46 HNS3_TQP_STAT("non_vld_descs", non_vld_descs), 47 HNS3_TQP_STAT("err_bd_num", err_bd_num), 48 HNS3_TQP_STAT("l2_err", l2_err), 49 HNS3_TQP_STAT("l3l4_csum_err", l3l4_csum_err), 50 }; 51 52 #define HNS3_RXQ_STATS_COUNT ARRAY_SIZE(hns3_rxq_stats) 53 54 #define HNS3_TQP_STATS_COUNT (HNS3_TXQ_STATS_COUNT + HNS3_RXQ_STATS_COUNT) 55 56 #define HNS3_SELF_TEST_TYPE_NUM 3 57 #define HNS3_NIC_LB_TEST_PKT_NUM 1 58 #define HNS3_NIC_LB_TEST_RING_ID 0 59 #define HNS3_NIC_LB_TEST_PACKET_SIZE 128 60 61 /* Nic loopback test err */ 62 #define HNS3_NIC_LB_TEST_NO_MEM_ERR 1 63 #define HNS3_NIC_LB_TEST_TX_CNT_ERR 2 64 #define HNS3_NIC_LB_TEST_RX_CNT_ERR 3 65 66 struct hns3_link_mode_mapping { 67 u32 hns3_link_mode; 68 u32 ethtool_link_mode; 69 }; 70 71 static int hns3_lp_setup(struct net_device *ndev, enum hnae3_loop loop, bool en) 72 { 73 struct hnae3_handle *h = hns3_get_handle(ndev); 74 int ret; 75 76 if (!h->ae_algo->ops->set_loopback || 77 !h->ae_algo->ops->set_promisc_mode) 78 return -EOPNOTSUPP; 79 80 switch (loop) { 81 case HNAE3_LOOP_SERIAL_SERDES: 82 case HNAE3_LOOP_PARALLEL_SERDES: 83 case HNAE3_LOOP_APP: 84 ret = h->ae_algo->ops->set_loopback(h, loop, en); 85 break; 86 default: 87 ret = -ENOTSUPP; 88 break; 89 } 90 91 if (ret) 92 return ret; 93 94 h->ae_algo->ops->set_promisc_mode(h, en, en); 95 96 return ret; 97 } 98 99 static int hns3_lp_up(struct net_device *ndev, enum hnae3_loop loop_mode) 100 { 101 struct hnae3_handle *h = hns3_get_handle(ndev); 102 int ret; 103 104 ret = hns3_nic_reset_all_ring(h); 105 if (ret) 106 return ret; 107 108 ret = hns3_lp_setup(ndev, loop_mode, true); 109 usleep_range(10000, 20000); 110 111 return 0; 112 } 113 114 static int hns3_lp_down(struct net_device *ndev, enum hnae3_loop loop_mode) 115 { 116 int ret; 117 118 ret = hns3_lp_setup(ndev, loop_mode, false); 119 if (ret) { 120 netdev_err(ndev, "lb_setup return error: %d\n", ret); 121 return ret; 122 } 123 124 usleep_range(10000, 20000); 125 126 return 0; 127 } 128 129 static void hns3_lp_setup_skb(struct sk_buff *skb) 130 { 131 struct net_device *ndev = skb->dev; 132 unsigned char *packet; 133 struct ethhdr *ethh; 134 unsigned int i; 135 136 skb_reserve(skb, NET_IP_ALIGN); 137 ethh = skb_put(skb, sizeof(struct ethhdr)); 138 packet = skb_put(skb, HNS3_NIC_LB_TEST_PACKET_SIZE); 139 140 memcpy(ethh->h_dest, ndev->dev_addr, ETH_ALEN); 141 ethh->h_dest[5] += 0x1f; 142 eth_zero_addr(ethh->h_source); 143 ethh->h_proto = htons(ETH_P_ARP); 144 skb_reset_mac_header(skb); 145 146 for (i = 0; i < HNS3_NIC_LB_TEST_PACKET_SIZE; i++) 147 packet[i] = (unsigned char)(i & 0xff); 148 } 149 150 static void hns3_lb_check_skb_data(struct hns3_enet_ring *ring, 151 struct sk_buff *skb) 152 { 153 struct hns3_enet_tqp_vector *tqp_vector = ring->tqp_vector; 154 unsigned char *packet = skb->data; 155 u32 i; 156 157 for (i = 0; i < skb->len; i++) 158 if (packet[i] != (unsigned char)(i & 0xff)) 159 break; 160 161 /* The packet is correctly received */ 162 if (i == skb->len) 163 tqp_vector->rx_group.total_packets++; 164 else 165 print_hex_dump(KERN_ERR, "selftest:", DUMP_PREFIX_OFFSET, 16, 1, 166 skb->data, skb->len, true); 167 168 dev_kfree_skb_any(skb); 169 } 170 171 static u32 hns3_lb_check_rx_ring(struct hns3_nic_priv *priv, u32 budget) 172 { 173 struct hnae3_handle *h = priv->ae_handle; 174 struct hnae3_knic_private_info *kinfo; 175 u32 i, rcv_good_pkt_total = 0; 176 177 kinfo = &h->kinfo; 178 for (i = kinfo->num_tqps; i < kinfo->num_tqps * 2; i++) { 179 struct hns3_enet_ring *ring = priv->ring_data[i].ring; 180 struct hns3_enet_ring_group *rx_group; 181 u64 pre_rx_pkt; 182 183 rx_group = &ring->tqp_vector->rx_group; 184 pre_rx_pkt = rx_group->total_packets; 185 186 preempt_disable(); 187 hns3_clean_rx_ring(ring, budget, hns3_lb_check_skb_data); 188 preempt_enable(); 189 190 rcv_good_pkt_total += (rx_group->total_packets - pre_rx_pkt); 191 rx_group->total_packets = pre_rx_pkt; 192 } 193 return rcv_good_pkt_total; 194 } 195 196 static void hns3_lb_clear_tx_ring(struct hns3_nic_priv *priv, u32 start_ringid, 197 u32 end_ringid, u32 budget) 198 { 199 u32 i; 200 201 for (i = start_ringid; i <= end_ringid; i++) { 202 struct hns3_enet_ring *ring = priv->ring_data[i].ring; 203 204 hns3_clean_tx_ring(ring); 205 } 206 } 207 208 /** 209 * hns3_lp_run_test - run loopback test 210 * @ndev: net device 211 * @mode: loopback type 212 */ 213 static int hns3_lp_run_test(struct net_device *ndev, enum hnae3_loop mode) 214 { 215 struct hns3_nic_priv *priv = netdev_priv(ndev); 216 struct sk_buff *skb; 217 u32 i, good_cnt; 218 int ret_val = 0; 219 220 skb = alloc_skb(HNS3_NIC_LB_TEST_PACKET_SIZE + ETH_HLEN + NET_IP_ALIGN, 221 GFP_KERNEL); 222 if (!skb) 223 return HNS3_NIC_LB_TEST_NO_MEM_ERR; 224 225 skb->dev = ndev; 226 hns3_lp_setup_skb(skb); 227 skb->queue_mapping = HNS3_NIC_LB_TEST_RING_ID; 228 229 good_cnt = 0; 230 for (i = 0; i < HNS3_NIC_LB_TEST_PKT_NUM; i++) { 231 netdev_tx_t tx_ret; 232 233 skb_get(skb); 234 tx_ret = hns3_nic_net_xmit(skb, ndev); 235 if (tx_ret == NETDEV_TX_OK) 236 good_cnt++; 237 else 238 netdev_err(ndev, "hns3_lb_run_test xmit failed: %d\n", 239 tx_ret); 240 } 241 if (good_cnt != HNS3_NIC_LB_TEST_PKT_NUM) { 242 ret_val = HNS3_NIC_LB_TEST_TX_CNT_ERR; 243 netdev_err(ndev, "mode %d sent fail, cnt=0x%x, budget=0x%x\n", 244 mode, good_cnt, HNS3_NIC_LB_TEST_PKT_NUM); 245 goto out; 246 } 247 248 /* Allow 200 milliseconds for packets to go from Tx to Rx */ 249 msleep(200); 250 251 good_cnt = hns3_lb_check_rx_ring(priv, HNS3_NIC_LB_TEST_PKT_NUM); 252 if (good_cnt != HNS3_NIC_LB_TEST_PKT_NUM) { 253 ret_val = HNS3_NIC_LB_TEST_RX_CNT_ERR; 254 netdev_err(ndev, "mode %d recv fail, cnt=0x%x, budget=0x%x\n", 255 mode, good_cnt, HNS3_NIC_LB_TEST_PKT_NUM); 256 } 257 258 out: 259 hns3_lb_clear_tx_ring(priv, HNS3_NIC_LB_TEST_RING_ID, 260 HNS3_NIC_LB_TEST_RING_ID, 261 HNS3_NIC_LB_TEST_PKT_NUM); 262 263 kfree_skb(skb); 264 return ret_val; 265 } 266 267 /** 268 * hns3_nic_self_test - self test 269 * @ndev: net device 270 * @eth_test: test cmd 271 * @data: test result 272 */ 273 static void hns3_self_test(struct net_device *ndev, 274 struct ethtool_test *eth_test, u64 *data) 275 { 276 struct hns3_nic_priv *priv = netdev_priv(ndev); 277 struct hnae3_handle *h = priv->ae_handle; 278 int st_param[HNS3_SELF_TEST_TYPE_NUM][2]; 279 bool if_running = netif_running(ndev); 280 #if IS_ENABLED(CONFIG_VLAN_8021Q) 281 bool dis_vlan_filter; 282 #endif 283 int test_index = 0; 284 u32 i; 285 286 /* Only do offline selftest, or pass by default */ 287 if (eth_test->flags != ETH_TEST_FL_OFFLINE) 288 return; 289 290 st_param[HNAE3_LOOP_APP][0] = HNAE3_LOOP_APP; 291 st_param[HNAE3_LOOP_APP][1] = 292 h->flags & HNAE3_SUPPORT_APP_LOOPBACK; 293 294 st_param[HNAE3_LOOP_SERIAL_SERDES][0] = HNAE3_LOOP_SERIAL_SERDES; 295 st_param[HNAE3_LOOP_SERIAL_SERDES][1] = 296 h->flags & HNAE3_SUPPORT_SERDES_SERIAL_LOOPBACK; 297 298 st_param[HNAE3_LOOP_PARALLEL_SERDES][0] = 299 HNAE3_LOOP_PARALLEL_SERDES; 300 st_param[HNAE3_LOOP_PARALLEL_SERDES][1] = 301 h->flags & HNAE3_SUPPORT_SERDES_PARALLEL_LOOPBACK; 302 303 if (if_running) 304 ndev->netdev_ops->ndo_stop(ndev); 305 306 #if IS_ENABLED(CONFIG_VLAN_8021Q) 307 /* Disable the vlan filter for selftest does not support it */ 308 dis_vlan_filter = (ndev->features & NETIF_F_HW_VLAN_CTAG_FILTER) && 309 h->ae_algo->ops->enable_vlan_filter; 310 if (dis_vlan_filter) 311 h->ae_algo->ops->enable_vlan_filter(h, false); 312 #endif 313 314 set_bit(HNS3_NIC_STATE_TESTING, &priv->state); 315 316 for (i = 0; i < HNS3_SELF_TEST_TYPE_NUM; i++) { 317 enum hnae3_loop loop_type = (enum hnae3_loop)st_param[i][0]; 318 319 if (!st_param[i][1]) 320 continue; 321 322 data[test_index] = hns3_lp_up(ndev, loop_type); 323 if (!data[test_index]) { 324 data[test_index] = hns3_lp_run_test(ndev, loop_type); 325 hns3_lp_down(ndev, loop_type); 326 } 327 328 if (data[test_index]) 329 eth_test->flags |= ETH_TEST_FL_FAILED; 330 331 test_index++; 332 } 333 334 clear_bit(HNS3_NIC_STATE_TESTING, &priv->state); 335 336 #if IS_ENABLED(CONFIG_VLAN_8021Q) 337 if (dis_vlan_filter) 338 h->ae_algo->ops->enable_vlan_filter(h, true); 339 #endif 340 341 if (if_running) 342 ndev->netdev_ops->ndo_open(ndev); 343 } 344 345 static int hns3_get_sset_count(struct net_device *netdev, int stringset) 346 { 347 struct hnae3_handle *h = hns3_get_handle(netdev); 348 const struct hnae3_ae_ops *ops = h->ae_algo->ops; 349 350 if (!ops->get_sset_count) 351 return -EOPNOTSUPP; 352 353 switch (stringset) { 354 case ETH_SS_STATS: 355 return ((HNS3_TQP_STATS_COUNT * h->kinfo.num_tqps) + 356 ops->get_sset_count(h, stringset)); 357 358 case ETH_SS_TEST: 359 return ops->get_sset_count(h, stringset); 360 361 default: 362 return -EOPNOTSUPP; 363 } 364 } 365 366 static void *hns3_update_strings(u8 *data, const struct hns3_stats *stats, 367 u32 stat_count, u32 num_tqps, const char *prefix) 368 { 369 #define MAX_PREFIX_SIZE (6 + 4) 370 u32 size_left; 371 u32 i, j; 372 u32 n1; 373 374 for (i = 0; i < num_tqps; i++) { 375 for (j = 0; j < stat_count; j++) { 376 data[ETH_GSTRING_LEN - 1] = '\0'; 377 378 /* first, prepend the prefix string */ 379 n1 = snprintf(data, MAX_PREFIX_SIZE, "%s%d_", 380 prefix, i); 381 n1 = min_t(uint, n1, MAX_PREFIX_SIZE - 1); 382 size_left = (ETH_GSTRING_LEN - 1) - n1; 383 384 /* now, concatenate the stats string to it */ 385 strncat(data, stats[j].stats_string, size_left); 386 data += ETH_GSTRING_LEN; 387 } 388 } 389 390 return data; 391 } 392 393 static u8 *hns3_get_strings_tqps(struct hnae3_handle *handle, u8 *data) 394 { 395 struct hnae3_knic_private_info *kinfo = &handle->kinfo; 396 const char tx_prefix[] = "txq"; 397 const char rx_prefix[] = "rxq"; 398 399 /* get strings for Tx */ 400 data = hns3_update_strings(data, hns3_txq_stats, HNS3_TXQ_STATS_COUNT, 401 kinfo->num_tqps, tx_prefix); 402 403 /* get strings for Rx */ 404 data = hns3_update_strings(data, hns3_rxq_stats, HNS3_RXQ_STATS_COUNT, 405 kinfo->num_tqps, rx_prefix); 406 407 return data; 408 } 409 410 static void hns3_get_strings(struct net_device *netdev, u32 stringset, u8 *data) 411 { 412 struct hnae3_handle *h = hns3_get_handle(netdev); 413 const struct hnae3_ae_ops *ops = h->ae_algo->ops; 414 char *buff = (char *)data; 415 416 if (!ops->get_strings) 417 return; 418 419 switch (stringset) { 420 case ETH_SS_STATS: 421 buff = hns3_get_strings_tqps(h, buff); 422 h->ae_algo->ops->get_strings(h, stringset, (u8 *)buff); 423 break; 424 case ETH_SS_TEST: 425 ops->get_strings(h, stringset, data); 426 break; 427 default: 428 break; 429 } 430 } 431 432 static u64 *hns3_get_stats_tqps(struct hnae3_handle *handle, u64 *data) 433 { 434 struct hns3_nic_priv *nic_priv = (struct hns3_nic_priv *)handle->priv; 435 struct hnae3_knic_private_info *kinfo = &handle->kinfo; 436 struct hns3_enet_ring *ring; 437 u8 *stat; 438 int i, j; 439 440 /* get stats for Tx */ 441 for (i = 0; i < kinfo->num_tqps; i++) { 442 ring = nic_priv->ring_data[i].ring; 443 for (j = 0; j < HNS3_TXQ_STATS_COUNT; j++) { 444 stat = (u8 *)ring + hns3_txq_stats[j].stats_offset; 445 *data++ = *(u64 *)stat; 446 } 447 } 448 449 /* get stats for Rx */ 450 for (i = 0; i < kinfo->num_tqps; i++) { 451 ring = nic_priv->ring_data[i + kinfo->num_tqps].ring; 452 for (j = 0; j < HNS3_RXQ_STATS_COUNT; j++) { 453 stat = (u8 *)ring + hns3_rxq_stats[j].stats_offset; 454 *data++ = *(u64 *)stat; 455 } 456 } 457 458 return data; 459 } 460 461 /* hns3_get_stats - get detail statistics. 462 * @netdev: net device 463 * @stats: statistics info. 464 * @data: statistics data. 465 */ 466 static void hns3_get_stats(struct net_device *netdev, 467 struct ethtool_stats *stats, u64 *data) 468 { 469 struct hnae3_handle *h = hns3_get_handle(netdev); 470 u64 *p = data; 471 472 if (!h->ae_algo->ops->get_stats || !h->ae_algo->ops->update_stats) { 473 netdev_err(netdev, "could not get any statistics\n"); 474 return; 475 } 476 477 h->ae_algo->ops->update_stats(h, &netdev->stats); 478 479 /* get per-queue stats */ 480 p = hns3_get_stats_tqps(h, p); 481 482 /* get MAC & other misc hardware stats */ 483 h->ae_algo->ops->get_stats(h, p); 484 } 485 486 static void hns3_get_drvinfo(struct net_device *netdev, 487 struct ethtool_drvinfo *drvinfo) 488 { 489 struct hns3_nic_priv *priv = netdev_priv(netdev); 490 struct hnae3_handle *h = priv->ae_handle; 491 492 strncpy(drvinfo->version, hns3_driver_version, 493 sizeof(drvinfo->version)); 494 drvinfo->version[sizeof(drvinfo->version) - 1] = '\0'; 495 496 strncpy(drvinfo->driver, h->pdev->driver->name, 497 sizeof(drvinfo->driver)); 498 drvinfo->driver[sizeof(drvinfo->driver) - 1] = '\0'; 499 500 strncpy(drvinfo->bus_info, pci_name(h->pdev), 501 sizeof(drvinfo->bus_info)); 502 drvinfo->bus_info[ETHTOOL_BUSINFO_LEN - 1] = '\0'; 503 504 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), "0x%08x", 505 priv->ae_handle->ae_algo->ops->get_fw_version(h)); 506 } 507 508 static u32 hns3_get_link(struct net_device *netdev) 509 { 510 struct hnae3_handle *h = hns3_get_handle(netdev); 511 512 if (h->ae_algo && h->ae_algo->ops && h->ae_algo->ops->get_status) 513 return h->ae_algo->ops->get_status(h); 514 else 515 return 0; 516 } 517 518 static void hns3_get_ringparam(struct net_device *netdev, 519 struct ethtool_ringparam *param) 520 { 521 struct hns3_nic_priv *priv = netdev_priv(netdev); 522 struct hnae3_handle *h = priv->ae_handle; 523 int queue_num = h->kinfo.num_tqps; 524 525 param->tx_max_pending = HNS3_RING_MAX_PENDING; 526 param->rx_max_pending = HNS3_RING_MAX_PENDING; 527 528 param->tx_pending = priv->ring_data[0].ring->desc_num; 529 param->rx_pending = priv->ring_data[queue_num].ring->desc_num; 530 } 531 532 static void hns3_get_pauseparam(struct net_device *netdev, 533 struct ethtool_pauseparam *param) 534 { 535 struct hnae3_handle *h = hns3_get_handle(netdev); 536 537 if (h->ae_algo && h->ae_algo->ops && h->ae_algo->ops->get_pauseparam) 538 h->ae_algo->ops->get_pauseparam(h, ¶m->autoneg, 539 ¶m->rx_pause, ¶m->tx_pause); 540 } 541 542 static int hns3_set_pauseparam(struct net_device *netdev, 543 struct ethtool_pauseparam *param) 544 { 545 struct hnae3_handle *h = hns3_get_handle(netdev); 546 547 if (h->ae_algo->ops->set_pauseparam) 548 return h->ae_algo->ops->set_pauseparam(h, param->autoneg, 549 param->rx_pause, 550 param->tx_pause); 551 return -EOPNOTSUPP; 552 } 553 554 static void hns3_get_ksettings(struct hnae3_handle *h, 555 struct ethtool_link_ksettings *cmd) 556 { 557 const struct hnae3_ae_ops *ops = h->ae_algo->ops; 558 559 /* 1.auto_neg & speed & duplex from cmd */ 560 if (ops->get_ksettings_an_result) 561 ops->get_ksettings_an_result(h, 562 &cmd->base.autoneg, 563 &cmd->base.speed, 564 &cmd->base.duplex); 565 566 /* 2.get link mode*/ 567 if (ops->get_link_mode) 568 ops->get_link_mode(h, 569 cmd->link_modes.supported, 570 cmd->link_modes.advertising); 571 572 /* 3.mdix_ctrl&mdix get from phy reg */ 573 if (ops->get_mdix_mode) 574 ops->get_mdix_mode(h, &cmd->base.eth_tp_mdix_ctrl, 575 &cmd->base.eth_tp_mdix); 576 } 577 578 static int hns3_get_link_ksettings(struct net_device *netdev, 579 struct ethtool_link_ksettings *cmd) 580 { 581 struct hnae3_handle *h = hns3_get_handle(netdev); 582 const struct hnae3_ae_ops *ops; 583 u8 media_type; 584 u8 link_stat; 585 586 if (!h->ae_algo || !h->ae_algo->ops) 587 return -EOPNOTSUPP; 588 589 ops = h->ae_algo->ops; 590 if (ops->get_media_type) 591 ops->get_media_type(h, &media_type); 592 else 593 return -EOPNOTSUPP; 594 595 switch (media_type) { 596 case HNAE3_MEDIA_TYPE_NONE: 597 cmd->base.port = PORT_NONE; 598 hns3_get_ksettings(h, cmd); 599 break; 600 case HNAE3_MEDIA_TYPE_FIBER: 601 cmd->base.port = PORT_FIBRE; 602 hns3_get_ksettings(h, cmd); 603 break; 604 case HNAE3_MEDIA_TYPE_COPPER: 605 if (!netdev->phydev) 606 return -EOPNOTSUPP; 607 608 cmd->base.port = PORT_TP; 609 phy_ethtool_ksettings_get(netdev->phydev, cmd); 610 611 break; 612 default: 613 614 netdev_warn(netdev, "Unknown media type"); 615 return 0; 616 } 617 618 /* mdio_support */ 619 cmd->base.mdio_support = ETH_MDIO_SUPPORTS_C22; 620 621 link_stat = hns3_get_link(netdev); 622 if (!link_stat) { 623 cmd->base.speed = SPEED_UNKNOWN; 624 cmd->base.duplex = DUPLEX_UNKNOWN; 625 } 626 627 return 0; 628 } 629 630 static int hns3_set_link_ksettings(struct net_device *netdev, 631 const struct ethtool_link_ksettings *cmd) 632 { 633 /* Only support ksettings_set for netdev with phy attached for now */ 634 if (netdev->phydev) 635 return phy_ethtool_ksettings_set(netdev->phydev, cmd); 636 637 return -EOPNOTSUPP; 638 } 639 640 static u32 hns3_get_rss_key_size(struct net_device *netdev) 641 { 642 struct hnae3_handle *h = hns3_get_handle(netdev); 643 644 if (!h->ae_algo || !h->ae_algo->ops || 645 !h->ae_algo->ops->get_rss_key_size) 646 return 0; 647 648 return h->ae_algo->ops->get_rss_key_size(h); 649 } 650 651 static u32 hns3_get_rss_indir_size(struct net_device *netdev) 652 { 653 struct hnae3_handle *h = hns3_get_handle(netdev); 654 655 if (!h->ae_algo || !h->ae_algo->ops || 656 !h->ae_algo->ops->get_rss_indir_size) 657 return 0; 658 659 return h->ae_algo->ops->get_rss_indir_size(h); 660 } 661 662 static int hns3_get_rss(struct net_device *netdev, u32 *indir, u8 *key, 663 u8 *hfunc) 664 { 665 struct hnae3_handle *h = hns3_get_handle(netdev); 666 667 if (!h->ae_algo || !h->ae_algo->ops || !h->ae_algo->ops->get_rss) 668 return -EOPNOTSUPP; 669 670 return h->ae_algo->ops->get_rss(h, indir, key, hfunc); 671 } 672 673 static int hns3_set_rss(struct net_device *netdev, const u32 *indir, 674 const u8 *key, const u8 hfunc) 675 { 676 struct hnae3_handle *h = hns3_get_handle(netdev); 677 678 if (!h->ae_algo || !h->ae_algo->ops || !h->ae_algo->ops->set_rss) 679 return -EOPNOTSUPP; 680 681 if ((h->pdev->revision == 0x20 && 682 hfunc != ETH_RSS_HASH_TOP) || (hfunc != ETH_RSS_HASH_NO_CHANGE && 683 hfunc != ETH_RSS_HASH_TOP && hfunc != ETH_RSS_HASH_XOR)) { 684 netdev_err(netdev, "hash func not supported\n"); 685 return -EOPNOTSUPP; 686 } 687 688 if (!indir) { 689 netdev_err(netdev, 690 "set rss failed for indir is empty\n"); 691 return -EOPNOTSUPP; 692 } 693 694 return h->ae_algo->ops->set_rss(h, indir, key, hfunc); 695 } 696 697 static int hns3_get_rxnfc(struct net_device *netdev, 698 struct ethtool_rxnfc *cmd, 699 u32 *rule_locs) 700 { 701 struct hnae3_handle *h = hns3_get_handle(netdev); 702 703 if (!h->ae_algo || !h->ae_algo->ops) 704 return -EOPNOTSUPP; 705 706 switch (cmd->cmd) { 707 case ETHTOOL_GRXRINGS: 708 cmd->data = h->kinfo.num_tqps; 709 return 0; 710 case ETHTOOL_GRXFH: 711 if (h->ae_algo->ops->get_rss_tuple) 712 return h->ae_algo->ops->get_rss_tuple(h, cmd); 713 return -EOPNOTSUPP; 714 case ETHTOOL_GRXCLSRLCNT: 715 if (h->ae_algo->ops->get_fd_rule_cnt) 716 return h->ae_algo->ops->get_fd_rule_cnt(h, cmd); 717 return -EOPNOTSUPP; 718 case ETHTOOL_GRXCLSRULE: 719 if (h->ae_algo->ops->get_fd_rule_info) 720 return h->ae_algo->ops->get_fd_rule_info(h, cmd); 721 return -EOPNOTSUPP; 722 case ETHTOOL_GRXCLSRLALL: 723 if (h->ae_algo->ops->get_fd_all_rules) 724 return h->ae_algo->ops->get_fd_all_rules(h, cmd, 725 rule_locs); 726 return -EOPNOTSUPP; 727 default: 728 return -EOPNOTSUPP; 729 } 730 } 731 732 static int hns3_change_all_ring_bd_num(struct hns3_nic_priv *priv, 733 u32 new_desc_num) 734 { 735 struct hnae3_handle *h = priv->ae_handle; 736 int i; 737 738 h->kinfo.num_desc = new_desc_num; 739 740 for (i = 0; i < h->kinfo.num_tqps * 2; i++) 741 priv->ring_data[i].ring->desc_num = new_desc_num; 742 743 return hns3_init_all_ring(priv); 744 } 745 746 static int hns3_set_ringparam(struct net_device *ndev, 747 struct ethtool_ringparam *param) 748 { 749 struct hns3_nic_priv *priv = netdev_priv(ndev); 750 struct hnae3_handle *h = priv->ae_handle; 751 bool if_running = netif_running(ndev); 752 u32 old_desc_num, new_desc_num; 753 int ret; 754 755 if (param->rx_mini_pending || param->rx_jumbo_pending) 756 return -EINVAL; 757 758 if (param->tx_pending != param->rx_pending) { 759 netdev_err(ndev, 760 "Descriptors of tx and rx must be equal"); 761 return -EINVAL; 762 } 763 764 if (param->tx_pending > HNS3_RING_MAX_PENDING || 765 param->tx_pending < HNS3_RING_MIN_PENDING) { 766 netdev_err(ndev, 767 "Descriptors requested (Tx/Rx: %d) out of range [%d-%d]\n", 768 param->tx_pending, HNS3_RING_MIN_PENDING, 769 HNS3_RING_MAX_PENDING); 770 return -EINVAL; 771 } 772 773 new_desc_num = param->tx_pending; 774 775 /* Hardware requires that its descriptors must be multiple of eight */ 776 new_desc_num = ALIGN(new_desc_num, HNS3_RING_BD_MULTIPLE); 777 old_desc_num = h->kinfo.num_desc; 778 if (old_desc_num == new_desc_num) 779 return 0; 780 781 netdev_info(ndev, 782 "Changing descriptor count from %d to %d.\n", 783 old_desc_num, new_desc_num); 784 785 if (if_running) 786 dev_close(ndev); 787 788 ret = hns3_uninit_all_ring(priv); 789 if (ret) 790 return ret; 791 792 ret = hns3_change_all_ring_bd_num(priv, new_desc_num); 793 if (ret) { 794 ret = hns3_change_all_ring_bd_num(priv, old_desc_num); 795 if (ret) { 796 netdev_err(ndev, 797 "Revert to old bd num fail, ret=%d.\n", ret); 798 return ret; 799 } 800 } 801 802 if (if_running) 803 ret = dev_open(ndev); 804 805 return ret; 806 } 807 808 static int hns3_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 809 { 810 struct hnae3_handle *h = hns3_get_handle(netdev); 811 812 if (!h->ae_algo || !h->ae_algo->ops) 813 return -EOPNOTSUPP; 814 815 switch (cmd->cmd) { 816 case ETHTOOL_SRXFH: 817 if (h->ae_algo->ops->set_rss_tuple) 818 return h->ae_algo->ops->set_rss_tuple(h, cmd); 819 return -EOPNOTSUPP; 820 case ETHTOOL_SRXCLSRLINS: 821 if (h->ae_algo->ops->add_fd_entry) 822 return h->ae_algo->ops->add_fd_entry(h, cmd); 823 return -EOPNOTSUPP; 824 case ETHTOOL_SRXCLSRLDEL: 825 if (h->ae_algo->ops->del_fd_entry) 826 return h->ae_algo->ops->del_fd_entry(h, cmd); 827 return -EOPNOTSUPP; 828 default: 829 return -EOPNOTSUPP; 830 } 831 } 832 833 static int hns3_nway_reset(struct net_device *netdev) 834 { 835 struct phy_device *phy = netdev->phydev; 836 837 if (!netif_running(netdev)) 838 return 0; 839 840 /* Only support nway_reset for netdev with phy attached for now */ 841 if (!phy) 842 return -EOPNOTSUPP; 843 844 if (phy->autoneg != AUTONEG_ENABLE) 845 return -EINVAL; 846 847 return genphy_restart_aneg(phy); 848 } 849 850 static void hns3_get_channels(struct net_device *netdev, 851 struct ethtool_channels *ch) 852 { 853 struct hnae3_handle *h = hns3_get_handle(netdev); 854 855 if (h->ae_algo->ops->get_channels) 856 h->ae_algo->ops->get_channels(h, ch); 857 } 858 859 static int hns3_get_coalesce_per_queue(struct net_device *netdev, u32 queue, 860 struct ethtool_coalesce *cmd) 861 { 862 struct hns3_enet_tqp_vector *tx_vector, *rx_vector; 863 struct hns3_nic_priv *priv = netdev_priv(netdev); 864 struct hnae3_handle *h = priv->ae_handle; 865 u16 queue_num = h->kinfo.num_tqps; 866 867 if (queue >= queue_num) { 868 netdev_err(netdev, 869 "Invalid queue value %d! Queue max id=%d\n", 870 queue, queue_num - 1); 871 return -EINVAL; 872 } 873 874 tx_vector = priv->ring_data[queue].ring->tqp_vector; 875 rx_vector = priv->ring_data[queue_num + queue].ring->tqp_vector; 876 877 cmd->use_adaptive_tx_coalesce = 878 tx_vector->tx_group.coal.gl_adapt_enable; 879 cmd->use_adaptive_rx_coalesce = 880 rx_vector->rx_group.coal.gl_adapt_enable; 881 882 cmd->tx_coalesce_usecs = tx_vector->tx_group.coal.int_gl; 883 cmd->rx_coalesce_usecs = rx_vector->rx_group.coal.int_gl; 884 885 cmd->tx_coalesce_usecs_high = h->kinfo.int_rl_setting; 886 cmd->rx_coalesce_usecs_high = h->kinfo.int_rl_setting; 887 888 return 0; 889 } 890 891 static int hns3_get_coalesce(struct net_device *netdev, 892 struct ethtool_coalesce *cmd) 893 { 894 return hns3_get_coalesce_per_queue(netdev, 0, cmd); 895 } 896 897 static int hns3_check_gl_coalesce_para(struct net_device *netdev, 898 struct ethtool_coalesce *cmd) 899 { 900 u32 rx_gl, tx_gl; 901 902 if (cmd->rx_coalesce_usecs > HNS3_INT_GL_MAX) { 903 netdev_err(netdev, 904 "Invalid rx-usecs value, rx-usecs range is 0-%d\n", 905 HNS3_INT_GL_MAX); 906 return -EINVAL; 907 } 908 909 if (cmd->tx_coalesce_usecs > HNS3_INT_GL_MAX) { 910 netdev_err(netdev, 911 "Invalid tx-usecs value, tx-usecs range is 0-%d\n", 912 HNS3_INT_GL_MAX); 913 return -EINVAL; 914 } 915 916 rx_gl = hns3_gl_round_down(cmd->rx_coalesce_usecs); 917 if (rx_gl != cmd->rx_coalesce_usecs) { 918 netdev_info(netdev, 919 "rx_usecs(%d) rounded down to %d, because it must be multiple of 2.\n", 920 cmd->rx_coalesce_usecs, rx_gl); 921 } 922 923 tx_gl = hns3_gl_round_down(cmd->tx_coalesce_usecs); 924 if (tx_gl != cmd->tx_coalesce_usecs) { 925 netdev_info(netdev, 926 "tx_usecs(%d) rounded down to %d, because it must be multiple of 2.\n", 927 cmd->tx_coalesce_usecs, tx_gl); 928 } 929 930 return 0; 931 } 932 933 static int hns3_check_rl_coalesce_para(struct net_device *netdev, 934 struct ethtool_coalesce *cmd) 935 { 936 u32 rl; 937 938 if (cmd->tx_coalesce_usecs_high != cmd->rx_coalesce_usecs_high) { 939 netdev_err(netdev, 940 "tx_usecs_high must be same as rx_usecs_high.\n"); 941 return -EINVAL; 942 } 943 944 if (cmd->rx_coalesce_usecs_high > HNS3_INT_RL_MAX) { 945 netdev_err(netdev, 946 "Invalid usecs_high value, usecs_high range is 0-%d\n", 947 HNS3_INT_RL_MAX); 948 return -EINVAL; 949 } 950 951 rl = hns3_rl_round_down(cmd->rx_coalesce_usecs_high); 952 if (rl != cmd->rx_coalesce_usecs_high) { 953 netdev_info(netdev, 954 "usecs_high(%d) rounded down to %d, because it must be multiple of 4.\n", 955 cmd->rx_coalesce_usecs_high, rl); 956 } 957 958 return 0; 959 } 960 961 static int hns3_check_coalesce_para(struct net_device *netdev, 962 struct ethtool_coalesce *cmd) 963 { 964 int ret; 965 966 ret = hns3_check_gl_coalesce_para(netdev, cmd); 967 if (ret) { 968 netdev_err(netdev, 969 "Check gl coalesce param fail. ret = %d\n", ret); 970 return ret; 971 } 972 973 ret = hns3_check_rl_coalesce_para(netdev, cmd); 974 if (ret) { 975 netdev_err(netdev, 976 "Check rl coalesce param fail. ret = %d\n", ret); 977 return ret; 978 } 979 980 if (cmd->use_adaptive_tx_coalesce == 1 || 981 cmd->use_adaptive_rx_coalesce == 1) { 982 netdev_info(netdev, 983 "adaptive-tx=%d and adaptive-rx=%d, tx_usecs or rx_usecs will changed dynamically.\n", 984 cmd->use_adaptive_tx_coalesce, 985 cmd->use_adaptive_rx_coalesce); 986 } 987 988 return 0; 989 } 990 991 static void hns3_set_coalesce_per_queue(struct net_device *netdev, 992 struct ethtool_coalesce *cmd, 993 u32 queue) 994 { 995 struct hns3_enet_tqp_vector *tx_vector, *rx_vector; 996 struct hns3_nic_priv *priv = netdev_priv(netdev); 997 struct hnae3_handle *h = priv->ae_handle; 998 int queue_num = h->kinfo.num_tqps; 999 1000 tx_vector = priv->ring_data[queue].ring->tqp_vector; 1001 rx_vector = priv->ring_data[queue_num + queue].ring->tqp_vector; 1002 1003 tx_vector->tx_group.coal.gl_adapt_enable = 1004 cmd->use_adaptive_tx_coalesce; 1005 rx_vector->rx_group.coal.gl_adapt_enable = 1006 cmd->use_adaptive_rx_coalesce; 1007 1008 tx_vector->tx_group.coal.int_gl = cmd->tx_coalesce_usecs; 1009 rx_vector->rx_group.coal.int_gl = cmd->rx_coalesce_usecs; 1010 1011 hns3_set_vector_coalesce_tx_gl(tx_vector, 1012 tx_vector->tx_group.coal.int_gl); 1013 hns3_set_vector_coalesce_rx_gl(rx_vector, 1014 rx_vector->rx_group.coal.int_gl); 1015 1016 hns3_set_vector_coalesce_rl(tx_vector, h->kinfo.int_rl_setting); 1017 hns3_set_vector_coalesce_rl(rx_vector, h->kinfo.int_rl_setting); 1018 } 1019 1020 static int hns3_set_coalesce(struct net_device *netdev, 1021 struct ethtool_coalesce *cmd) 1022 { 1023 struct hnae3_handle *h = hns3_get_handle(netdev); 1024 u16 queue_num = h->kinfo.num_tqps; 1025 int ret; 1026 int i; 1027 1028 ret = hns3_check_coalesce_para(netdev, cmd); 1029 if (ret) 1030 return ret; 1031 1032 h->kinfo.int_rl_setting = 1033 hns3_rl_round_down(cmd->rx_coalesce_usecs_high); 1034 1035 for (i = 0; i < queue_num; i++) 1036 hns3_set_coalesce_per_queue(netdev, cmd, i); 1037 1038 return 0; 1039 } 1040 1041 static int hns3_get_regs_len(struct net_device *netdev) 1042 { 1043 struct hnae3_handle *h = hns3_get_handle(netdev); 1044 1045 if (!h->ae_algo->ops->get_regs_len) 1046 return -EOPNOTSUPP; 1047 1048 return h->ae_algo->ops->get_regs_len(h); 1049 } 1050 1051 static void hns3_get_regs(struct net_device *netdev, 1052 struct ethtool_regs *cmd, void *data) 1053 { 1054 struct hnae3_handle *h = hns3_get_handle(netdev); 1055 1056 if (!h->ae_algo->ops->get_regs) 1057 return; 1058 1059 h->ae_algo->ops->get_regs(h, &cmd->version, data); 1060 } 1061 1062 static int hns3_set_phys_id(struct net_device *netdev, 1063 enum ethtool_phys_id_state state) 1064 { 1065 struct hnae3_handle *h = hns3_get_handle(netdev); 1066 1067 if (!h->ae_algo || !h->ae_algo->ops || !h->ae_algo->ops->set_led_id) 1068 return -EOPNOTSUPP; 1069 1070 return h->ae_algo->ops->set_led_id(h, state); 1071 } 1072 1073 static const struct ethtool_ops hns3vf_ethtool_ops = { 1074 .get_drvinfo = hns3_get_drvinfo, 1075 .get_ringparam = hns3_get_ringparam, 1076 .set_ringparam = hns3_set_ringparam, 1077 .get_strings = hns3_get_strings, 1078 .get_ethtool_stats = hns3_get_stats, 1079 .get_sset_count = hns3_get_sset_count, 1080 .get_rxnfc = hns3_get_rxnfc, 1081 .set_rxnfc = hns3_set_rxnfc, 1082 .get_rxfh_key_size = hns3_get_rss_key_size, 1083 .get_rxfh_indir_size = hns3_get_rss_indir_size, 1084 .get_rxfh = hns3_get_rss, 1085 .set_rxfh = hns3_set_rss, 1086 .get_link_ksettings = hns3_get_link_ksettings, 1087 .get_channels = hns3_get_channels, 1088 .get_coalesce = hns3_get_coalesce, 1089 .set_coalesce = hns3_set_coalesce, 1090 .get_link = hns3_get_link, 1091 }; 1092 1093 static const struct ethtool_ops hns3_ethtool_ops = { 1094 .self_test = hns3_self_test, 1095 .get_drvinfo = hns3_get_drvinfo, 1096 .get_link = hns3_get_link, 1097 .get_ringparam = hns3_get_ringparam, 1098 .set_ringparam = hns3_set_ringparam, 1099 .get_pauseparam = hns3_get_pauseparam, 1100 .set_pauseparam = hns3_set_pauseparam, 1101 .get_strings = hns3_get_strings, 1102 .get_ethtool_stats = hns3_get_stats, 1103 .get_sset_count = hns3_get_sset_count, 1104 .get_rxnfc = hns3_get_rxnfc, 1105 .set_rxnfc = hns3_set_rxnfc, 1106 .get_rxfh_key_size = hns3_get_rss_key_size, 1107 .get_rxfh_indir_size = hns3_get_rss_indir_size, 1108 .get_rxfh = hns3_get_rss, 1109 .set_rxfh = hns3_set_rss, 1110 .get_link_ksettings = hns3_get_link_ksettings, 1111 .set_link_ksettings = hns3_set_link_ksettings, 1112 .nway_reset = hns3_nway_reset, 1113 .get_channels = hns3_get_channels, 1114 .set_channels = hns3_set_channels, 1115 .get_coalesce = hns3_get_coalesce, 1116 .set_coalesce = hns3_set_coalesce, 1117 .get_regs_len = hns3_get_regs_len, 1118 .get_regs = hns3_get_regs, 1119 .set_phys_id = hns3_set_phys_id, 1120 }; 1121 1122 void hns3_ethtool_set_ops(struct net_device *netdev) 1123 { 1124 struct hnae3_handle *h = hns3_get_handle(netdev); 1125 1126 if (h->flags & HNAE3_SUPPORT_VF) 1127 netdev->ethtool_ops = &hns3vf_ethtool_ops; 1128 else 1129 netdev->ethtool_ops = &hns3_ethtool_ops; 1130 } 1131