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("tx_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("tx_wake", restart_queue), 31 HNS3_TQP_STAT("tx_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("rx_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 2 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_MAC_INTER_LOOP_SERDES: 82 case HNAE3_MAC_INTER_LOOP_MAC: 83 ret = h->ae_algo->ops->set_loopback(h, loop, en); 84 break; 85 default: 86 ret = -ENOTSUPP; 87 break; 88 } 89 90 if (ret) 91 return ret; 92 93 h->ae_algo->ops->set_promisc_mode(h, en, en); 94 95 return ret; 96 } 97 98 static int hns3_lp_up(struct net_device *ndev, enum hnae3_loop loop_mode) 99 { 100 struct hnae3_handle *h = hns3_get_handle(ndev); 101 int ret; 102 103 if (!h->ae_algo->ops->start) 104 return -EOPNOTSUPP; 105 106 ret = hns3_nic_reset_all_ring(h); 107 if (ret) 108 return ret; 109 110 ret = h->ae_algo->ops->start(h); 111 if (ret) { 112 netdev_err(ndev, 113 "hns3_lb_up ae start return error: %d\n", ret); 114 return ret; 115 } 116 117 ret = hns3_lp_setup(ndev, loop_mode, true); 118 usleep_range(10000, 20000); 119 120 return ret; 121 } 122 123 static int hns3_lp_down(struct net_device *ndev, enum hnae3_loop loop_mode) 124 { 125 struct hnae3_handle *h = hns3_get_handle(ndev); 126 int ret; 127 128 if (!h->ae_algo->ops->stop) 129 return -EOPNOTSUPP; 130 131 ret = hns3_lp_setup(ndev, loop_mode, false); 132 if (ret) { 133 netdev_err(ndev, "lb_setup return error: %d\n", ret); 134 return ret; 135 } 136 137 h->ae_algo->ops->stop(h); 138 usleep_range(10000, 20000); 139 140 return 0; 141 } 142 143 static void hns3_lp_setup_skb(struct sk_buff *skb) 144 { 145 struct net_device *ndev = skb->dev; 146 unsigned char *packet; 147 struct ethhdr *ethh; 148 unsigned int i; 149 150 skb_reserve(skb, NET_IP_ALIGN); 151 ethh = skb_put(skb, sizeof(struct ethhdr)); 152 packet = skb_put(skb, HNS3_NIC_LB_TEST_PACKET_SIZE); 153 154 memcpy(ethh->h_dest, ndev->dev_addr, ETH_ALEN); 155 eth_zero_addr(ethh->h_source); 156 ethh->h_proto = htons(ETH_P_ARP); 157 skb_reset_mac_header(skb); 158 159 for (i = 0; i < HNS3_NIC_LB_TEST_PACKET_SIZE; i++) 160 packet[i] = (unsigned char)(i & 0xff); 161 } 162 163 static void hns3_lb_check_skb_data(struct hns3_enet_ring *ring, 164 struct sk_buff *skb) 165 { 166 struct hns3_enet_tqp_vector *tqp_vector = ring->tqp_vector; 167 unsigned char *packet = skb->data; 168 u32 i; 169 170 for (i = 0; i < skb->len; i++) 171 if (packet[i] != (unsigned char)(i & 0xff)) 172 break; 173 174 /* The packet is correctly received */ 175 if (i == skb->len) 176 tqp_vector->rx_group.total_packets++; 177 else 178 print_hex_dump(KERN_ERR, "selftest:", DUMP_PREFIX_OFFSET, 16, 1, 179 skb->data, skb->len, true); 180 181 dev_kfree_skb_any(skb); 182 } 183 184 static u32 hns3_lb_check_rx_ring(struct hns3_nic_priv *priv, u32 budget) 185 { 186 struct hnae3_handle *h = priv->ae_handle; 187 struct hnae3_knic_private_info *kinfo; 188 u32 i, rcv_good_pkt_total = 0; 189 190 kinfo = &h->kinfo; 191 for (i = kinfo->num_tqps; i < kinfo->num_tqps * 2; i++) { 192 struct hns3_enet_ring *ring = priv->ring_data[i].ring; 193 struct hns3_enet_ring_group *rx_group; 194 u64 pre_rx_pkt; 195 196 rx_group = &ring->tqp_vector->rx_group; 197 pre_rx_pkt = rx_group->total_packets; 198 199 preempt_disable(); 200 hns3_clean_rx_ring(ring, budget, hns3_lb_check_skb_data); 201 preempt_enable(); 202 203 rcv_good_pkt_total += (rx_group->total_packets - pre_rx_pkt); 204 rx_group->total_packets = pre_rx_pkt; 205 } 206 return rcv_good_pkt_total; 207 } 208 209 static void hns3_lb_clear_tx_ring(struct hns3_nic_priv *priv, u32 start_ringid, 210 u32 end_ringid, u32 budget) 211 { 212 u32 i; 213 214 for (i = start_ringid; i <= end_ringid; i++) { 215 struct hns3_enet_ring *ring = priv->ring_data[i].ring; 216 217 hns3_clean_tx_ring(ring, budget); 218 } 219 } 220 221 /** 222 * hns3_lp_run_test - run loopback test 223 * @ndev: net device 224 * @mode: loopback type 225 */ 226 static int hns3_lp_run_test(struct net_device *ndev, enum hnae3_loop mode) 227 { 228 struct hns3_nic_priv *priv = netdev_priv(ndev); 229 struct sk_buff *skb; 230 u32 i, good_cnt; 231 int ret_val = 0; 232 233 skb = alloc_skb(HNS3_NIC_LB_TEST_PACKET_SIZE + ETH_HLEN + NET_IP_ALIGN, 234 GFP_KERNEL); 235 if (!skb) 236 return HNS3_NIC_LB_TEST_NO_MEM_ERR; 237 238 skb->dev = ndev; 239 hns3_lp_setup_skb(skb); 240 skb->queue_mapping = HNS3_NIC_LB_TEST_RING_ID; 241 242 good_cnt = 0; 243 for (i = 0; i < HNS3_NIC_LB_TEST_PKT_NUM; i++) { 244 netdev_tx_t tx_ret; 245 246 skb_get(skb); 247 tx_ret = hns3_nic_net_xmit(skb, ndev); 248 if (tx_ret == NETDEV_TX_OK) 249 good_cnt++; 250 else 251 netdev_err(ndev, "hns3_lb_run_test xmit failed: %d\n", 252 tx_ret); 253 } 254 if (good_cnt != HNS3_NIC_LB_TEST_PKT_NUM) { 255 ret_val = HNS3_NIC_LB_TEST_TX_CNT_ERR; 256 netdev_err(ndev, "mode %d sent fail, cnt=0x%x, budget=0x%x\n", 257 mode, good_cnt, HNS3_NIC_LB_TEST_PKT_NUM); 258 goto out; 259 } 260 261 /* Allow 200 milliseconds for packets to go from Tx to Rx */ 262 msleep(200); 263 264 good_cnt = hns3_lb_check_rx_ring(priv, HNS3_NIC_LB_TEST_PKT_NUM); 265 if (good_cnt != HNS3_NIC_LB_TEST_PKT_NUM) { 266 ret_val = HNS3_NIC_LB_TEST_RX_CNT_ERR; 267 netdev_err(ndev, "mode %d recv fail, cnt=0x%x, budget=0x%x\n", 268 mode, good_cnt, HNS3_NIC_LB_TEST_PKT_NUM); 269 } 270 271 out: 272 hns3_lb_clear_tx_ring(priv, HNS3_NIC_LB_TEST_RING_ID, 273 HNS3_NIC_LB_TEST_RING_ID, 274 HNS3_NIC_LB_TEST_PKT_NUM); 275 276 kfree_skb(skb); 277 return ret_val; 278 } 279 280 /** 281 * hns3_nic_self_test - self test 282 * @ndev: net device 283 * @eth_test: test cmd 284 * @data: test result 285 */ 286 static void hns3_self_test(struct net_device *ndev, 287 struct ethtool_test *eth_test, u64 *data) 288 { 289 struct hns3_nic_priv *priv = netdev_priv(ndev); 290 struct hnae3_handle *h = priv->ae_handle; 291 int st_param[HNS3_SELF_TEST_TYPE_NUM][2]; 292 bool if_running = netif_running(ndev); 293 #if IS_ENABLED(CONFIG_VLAN_8021Q) 294 bool dis_vlan_filter; 295 #endif 296 int test_index = 0; 297 u32 i; 298 299 /* Only do offline selftest, or pass by default */ 300 if (eth_test->flags != ETH_TEST_FL_OFFLINE) 301 return; 302 303 st_param[HNAE3_MAC_INTER_LOOP_MAC][0] = HNAE3_MAC_INTER_LOOP_MAC; 304 st_param[HNAE3_MAC_INTER_LOOP_MAC][1] = 305 h->flags & HNAE3_SUPPORT_MAC_LOOPBACK; 306 307 st_param[HNAE3_MAC_INTER_LOOP_SERDES][0] = HNAE3_MAC_INTER_LOOP_SERDES; 308 st_param[HNAE3_MAC_INTER_LOOP_SERDES][1] = 309 h->flags & HNAE3_SUPPORT_SERDES_LOOPBACK; 310 311 if (if_running) 312 dev_close(ndev); 313 314 #if IS_ENABLED(CONFIG_VLAN_8021Q) 315 /* Disable the vlan filter for selftest does not support it */ 316 dis_vlan_filter = (ndev->features & NETIF_F_HW_VLAN_CTAG_FILTER) && 317 h->ae_algo->ops->enable_vlan_filter; 318 if (dis_vlan_filter) 319 h->ae_algo->ops->enable_vlan_filter(h, false); 320 #endif 321 322 set_bit(HNS3_NIC_STATE_TESTING, &priv->state); 323 324 for (i = 0; i < HNS3_SELF_TEST_TYPE_NUM; i++) { 325 enum hnae3_loop loop_type = (enum hnae3_loop)st_param[i][0]; 326 327 if (!st_param[i][1]) 328 continue; 329 330 data[test_index] = hns3_lp_up(ndev, loop_type); 331 if (!data[test_index]) { 332 data[test_index] = hns3_lp_run_test(ndev, loop_type); 333 hns3_lp_down(ndev, loop_type); 334 } 335 336 if (data[test_index]) 337 eth_test->flags |= ETH_TEST_FL_FAILED; 338 339 test_index++; 340 } 341 342 clear_bit(HNS3_NIC_STATE_TESTING, &priv->state); 343 344 #if IS_ENABLED(CONFIG_VLAN_8021Q) 345 if (dis_vlan_filter) 346 h->ae_algo->ops->enable_vlan_filter(h, true); 347 #endif 348 349 if (if_running) 350 dev_open(ndev); 351 } 352 353 static int hns3_get_sset_count(struct net_device *netdev, int stringset) 354 { 355 struct hnae3_handle *h = hns3_get_handle(netdev); 356 const struct hnae3_ae_ops *ops = h->ae_algo->ops; 357 358 if (!ops->get_sset_count) 359 return -EOPNOTSUPP; 360 361 switch (stringset) { 362 case ETH_SS_STATS: 363 return ((HNS3_TQP_STATS_COUNT * h->kinfo.num_tqps) + 364 ops->get_sset_count(h, stringset)); 365 366 case ETH_SS_TEST: 367 return ops->get_sset_count(h, stringset); 368 } 369 370 return 0; 371 } 372 373 static void *hns3_update_strings(u8 *data, const struct hns3_stats *stats, 374 u32 stat_count, u32 num_tqps, const char *prefix) 375 { 376 #define MAX_PREFIX_SIZE (6 + 4) 377 u32 size_left; 378 u32 i, j; 379 u32 n1; 380 381 for (i = 0; i < num_tqps; i++) { 382 for (j = 0; j < stat_count; j++) { 383 data[ETH_GSTRING_LEN - 1] = '\0'; 384 385 /* first, prepend the prefix string */ 386 n1 = snprintf(data, MAX_PREFIX_SIZE, "%s#%d_", 387 prefix, i); 388 n1 = min_t(uint, n1, MAX_PREFIX_SIZE - 1); 389 size_left = (ETH_GSTRING_LEN - 1) - n1; 390 391 /* now, concatenate the stats string to it */ 392 strncat(data, stats[j].stats_string, size_left); 393 data += ETH_GSTRING_LEN; 394 } 395 } 396 397 return data; 398 } 399 400 static u8 *hns3_get_strings_tqps(struct hnae3_handle *handle, u8 *data) 401 { 402 struct hnae3_knic_private_info *kinfo = &handle->kinfo; 403 const char tx_prefix[] = "txq"; 404 const char rx_prefix[] = "rxq"; 405 406 /* get strings for Tx */ 407 data = hns3_update_strings(data, hns3_txq_stats, HNS3_TXQ_STATS_COUNT, 408 kinfo->num_tqps, tx_prefix); 409 410 /* get strings for Rx */ 411 data = hns3_update_strings(data, hns3_rxq_stats, HNS3_RXQ_STATS_COUNT, 412 kinfo->num_tqps, rx_prefix); 413 414 return data; 415 } 416 417 static void hns3_get_strings(struct net_device *netdev, u32 stringset, u8 *data) 418 { 419 struct hnae3_handle *h = hns3_get_handle(netdev); 420 const struct hnae3_ae_ops *ops = h->ae_algo->ops; 421 char *buff = (char *)data; 422 423 if (!ops->get_strings) 424 return; 425 426 switch (stringset) { 427 case ETH_SS_STATS: 428 buff = hns3_get_strings_tqps(h, buff); 429 h->ae_algo->ops->get_strings(h, stringset, (u8 *)buff); 430 break; 431 case ETH_SS_TEST: 432 ops->get_strings(h, stringset, data); 433 break; 434 } 435 } 436 437 static u64 *hns3_get_stats_tqps(struct hnae3_handle *handle, u64 *data) 438 { 439 struct hns3_nic_priv *nic_priv = (struct hns3_nic_priv *)handle->priv; 440 struct hnae3_knic_private_info *kinfo = &handle->kinfo; 441 struct hns3_enet_ring *ring; 442 u8 *stat; 443 int i, j; 444 445 /* get stats for Tx */ 446 for (i = 0; i < kinfo->num_tqps; i++) { 447 ring = nic_priv->ring_data[i].ring; 448 for (j = 0; j < HNS3_TXQ_STATS_COUNT; j++) { 449 stat = (u8 *)ring + hns3_txq_stats[j].stats_offset; 450 *data++ = *(u64 *)stat; 451 } 452 } 453 454 /* get stats for Rx */ 455 for (i = 0; i < kinfo->num_tqps; i++) { 456 ring = nic_priv->ring_data[i + kinfo->num_tqps].ring; 457 for (j = 0; j < HNS3_RXQ_STATS_COUNT; j++) { 458 stat = (u8 *)ring + hns3_rxq_stats[j].stats_offset; 459 *data++ = *(u64 *)stat; 460 } 461 } 462 463 return data; 464 } 465 466 /* hns3_get_stats - get detail statistics. 467 * @netdev: net device 468 * @stats: statistics info. 469 * @data: statistics data. 470 */ 471 static void hns3_get_stats(struct net_device *netdev, 472 struct ethtool_stats *stats, u64 *data) 473 { 474 struct hnae3_handle *h = hns3_get_handle(netdev); 475 u64 *p = data; 476 477 if (!h->ae_algo->ops->get_stats || !h->ae_algo->ops->update_stats) { 478 netdev_err(netdev, "could not get any statistics\n"); 479 return; 480 } 481 482 h->ae_algo->ops->update_stats(h, &netdev->stats); 483 484 /* get per-queue stats */ 485 p = hns3_get_stats_tqps(h, p); 486 487 /* get MAC & other misc hardware stats */ 488 h->ae_algo->ops->get_stats(h, p); 489 } 490 491 static void hns3_get_drvinfo(struct net_device *netdev, 492 struct ethtool_drvinfo *drvinfo) 493 { 494 struct hns3_nic_priv *priv = netdev_priv(netdev); 495 struct hnae3_handle *h = priv->ae_handle; 496 497 strncpy(drvinfo->version, hns3_driver_version, 498 sizeof(drvinfo->version)); 499 drvinfo->version[sizeof(drvinfo->version) - 1] = '\0'; 500 501 strncpy(drvinfo->driver, h->pdev->driver->name, 502 sizeof(drvinfo->driver)); 503 drvinfo->driver[sizeof(drvinfo->driver) - 1] = '\0'; 504 505 strncpy(drvinfo->bus_info, pci_name(h->pdev), 506 sizeof(drvinfo->bus_info)); 507 drvinfo->bus_info[ETHTOOL_BUSINFO_LEN - 1] = '\0'; 508 509 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), "0x%08x", 510 priv->ae_handle->ae_algo->ops->get_fw_version(h)); 511 } 512 513 static u32 hns3_get_link(struct net_device *netdev) 514 { 515 struct hnae3_handle *h = hns3_get_handle(netdev); 516 517 if (h->ae_algo && h->ae_algo->ops && h->ae_algo->ops->get_status) 518 return h->ae_algo->ops->get_status(h); 519 else 520 return 0; 521 } 522 523 static void hns3_get_ringparam(struct net_device *netdev, 524 struct ethtool_ringparam *param) 525 { 526 struct hns3_nic_priv *priv = netdev_priv(netdev); 527 struct hnae3_handle *h = priv->ae_handle; 528 int queue_num = h->kinfo.num_tqps; 529 530 param->tx_max_pending = HNS3_RING_MAX_PENDING; 531 param->rx_max_pending = HNS3_RING_MAX_PENDING; 532 533 param->tx_pending = priv->ring_data[0].ring->desc_num; 534 param->rx_pending = priv->ring_data[queue_num].ring->desc_num; 535 } 536 537 static void hns3_get_pauseparam(struct net_device *netdev, 538 struct ethtool_pauseparam *param) 539 { 540 struct hnae3_handle *h = hns3_get_handle(netdev); 541 542 if (h->ae_algo && h->ae_algo->ops && h->ae_algo->ops->get_pauseparam) 543 h->ae_algo->ops->get_pauseparam(h, ¶m->autoneg, 544 ¶m->rx_pause, ¶m->tx_pause); 545 } 546 547 static int hns3_set_pauseparam(struct net_device *netdev, 548 struct ethtool_pauseparam *param) 549 { 550 struct hnae3_handle *h = hns3_get_handle(netdev); 551 552 if (h->ae_algo->ops->set_pauseparam) 553 return h->ae_algo->ops->set_pauseparam(h, param->autoneg, 554 param->rx_pause, 555 param->tx_pause); 556 return -EOPNOTSUPP; 557 } 558 559 static int hns3_get_link_ksettings(struct net_device *netdev, 560 struct ethtool_link_ksettings *cmd) 561 { 562 struct hnae3_handle *h = hns3_get_handle(netdev); 563 u32 flowctrl_adv = 0; 564 u8 link_stat; 565 566 if (!h->ae_algo || !h->ae_algo->ops) 567 return -EOPNOTSUPP; 568 569 /* 1.auto_neg & speed & duplex from cmd */ 570 if (netdev->phydev) { 571 phy_ethtool_ksettings_get(netdev->phydev, cmd); 572 573 return 0; 574 } 575 576 if (h->ae_algo->ops->get_ksettings_an_result) 577 h->ae_algo->ops->get_ksettings_an_result(h, 578 &cmd->base.autoneg, 579 &cmd->base.speed, 580 &cmd->base.duplex); 581 else 582 return -EOPNOTSUPP; 583 584 link_stat = hns3_get_link(netdev); 585 if (!link_stat) { 586 cmd->base.speed = SPEED_UNKNOWN; 587 cmd->base.duplex = DUPLEX_UNKNOWN; 588 } 589 590 /* 2.get link mode and port type*/ 591 if (h->ae_algo->ops->get_link_mode) 592 h->ae_algo->ops->get_link_mode(h, 593 cmd->link_modes.supported, 594 cmd->link_modes.advertising); 595 596 cmd->base.port = PORT_NONE; 597 if (h->ae_algo->ops->get_port_type) 598 h->ae_algo->ops->get_port_type(h, 599 &cmd->base.port); 600 601 /* 3.mdix_ctrl&mdix get from phy reg */ 602 if (h->ae_algo->ops->get_mdix_mode) 603 h->ae_algo->ops->get_mdix_mode(h, &cmd->base.eth_tp_mdix_ctrl, 604 &cmd->base.eth_tp_mdix); 605 /* 4.mdio_support */ 606 cmd->base.mdio_support = ETH_MDIO_SUPPORTS_C22; 607 608 /* 5.get flow control setttings */ 609 if (h->ae_algo->ops->get_flowctrl_adv) 610 h->ae_algo->ops->get_flowctrl_adv(h, &flowctrl_adv); 611 612 if (flowctrl_adv & ADVERTISED_Pause) 613 ethtool_link_ksettings_add_link_mode(cmd, advertising, 614 Pause); 615 616 if (flowctrl_adv & ADVERTISED_Asym_Pause) 617 ethtool_link_ksettings_add_link_mode(cmd, advertising, 618 Asym_Pause); 619 620 return 0; 621 } 622 623 static int hns3_set_link_ksettings(struct net_device *netdev, 624 const struct ethtool_link_ksettings *cmd) 625 { 626 /* Only support ksettings_set for netdev with phy attached for now */ 627 if (netdev->phydev) 628 return phy_ethtool_ksettings_set(netdev->phydev, cmd); 629 630 return -EOPNOTSUPP; 631 } 632 633 static u32 hns3_get_rss_key_size(struct net_device *netdev) 634 { 635 struct hnae3_handle *h = hns3_get_handle(netdev); 636 637 if (!h->ae_algo || !h->ae_algo->ops || 638 !h->ae_algo->ops->get_rss_key_size) 639 return 0; 640 641 return h->ae_algo->ops->get_rss_key_size(h); 642 } 643 644 static u32 hns3_get_rss_indir_size(struct net_device *netdev) 645 { 646 struct hnae3_handle *h = hns3_get_handle(netdev); 647 648 if (!h->ae_algo || !h->ae_algo->ops || 649 !h->ae_algo->ops->get_rss_indir_size) 650 return 0; 651 652 return h->ae_algo->ops->get_rss_indir_size(h); 653 } 654 655 static int hns3_get_rss(struct net_device *netdev, u32 *indir, u8 *key, 656 u8 *hfunc) 657 { 658 struct hnae3_handle *h = hns3_get_handle(netdev); 659 660 if (!h->ae_algo || !h->ae_algo->ops || !h->ae_algo->ops->get_rss) 661 return -EOPNOTSUPP; 662 663 return h->ae_algo->ops->get_rss(h, indir, key, hfunc); 664 } 665 666 static int hns3_set_rss(struct net_device *netdev, const u32 *indir, 667 const u8 *key, const u8 hfunc) 668 { 669 struct hnae3_handle *h = hns3_get_handle(netdev); 670 671 if (!h->ae_algo || !h->ae_algo->ops || !h->ae_algo->ops->set_rss) 672 return -EOPNOTSUPP; 673 674 /* currently we only support Toeplitz hash */ 675 if ((hfunc != ETH_RSS_HASH_NO_CHANGE) && (hfunc != ETH_RSS_HASH_TOP)) { 676 netdev_err(netdev, 677 "hash func not supported (only Toeplitz hash)\n"); 678 return -EOPNOTSUPP; 679 } 680 if (!indir) { 681 netdev_err(netdev, 682 "set rss failed for indir is empty\n"); 683 return -EOPNOTSUPP; 684 } 685 686 return h->ae_algo->ops->set_rss(h, indir, key, hfunc); 687 } 688 689 static int hns3_get_rxnfc(struct net_device *netdev, 690 struct ethtool_rxnfc *cmd, 691 u32 *rule_locs) 692 { 693 struct hnae3_handle *h = hns3_get_handle(netdev); 694 695 if (!h->ae_algo || !h->ae_algo->ops || !h->ae_algo->ops->get_rss_tuple) 696 return -EOPNOTSUPP; 697 698 switch (cmd->cmd) { 699 case ETHTOOL_GRXRINGS: 700 cmd->data = h->kinfo.rss_size; 701 break; 702 case ETHTOOL_GRXFH: 703 return h->ae_algo->ops->get_rss_tuple(h, cmd); 704 default: 705 return -EOPNOTSUPP; 706 } 707 708 return 0; 709 } 710 711 static int hns3_change_all_ring_bd_num(struct hns3_nic_priv *priv, 712 u32 new_desc_num) 713 { 714 struct hnae3_handle *h = priv->ae_handle; 715 int i; 716 717 h->kinfo.num_desc = new_desc_num; 718 719 for (i = 0; i < h->kinfo.num_tqps * 2; i++) 720 priv->ring_data[i].ring->desc_num = new_desc_num; 721 722 return hns3_init_all_ring(priv); 723 } 724 725 static int hns3_set_ringparam(struct net_device *ndev, 726 struct ethtool_ringparam *param) 727 { 728 struct hns3_nic_priv *priv = netdev_priv(ndev); 729 struct hnae3_handle *h = priv->ae_handle; 730 bool if_running = netif_running(ndev); 731 u32 old_desc_num, new_desc_num; 732 int ret; 733 734 if (param->rx_mini_pending || param->rx_jumbo_pending) 735 return -EINVAL; 736 737 if (param->tx_pending != param->rx_pending) { 738 netdev_err(ndev, 739 "Descriptors of tx and rx must be equal"); 740 return -EINVAL; 741 } 742 743 if (param->tx_pending > HNS3_RING_MAX_PENDING || 744 param->tx_pending < HNS3_RING_MIN_PENDING) { 745 netdev_err(ndev, 746 "Descriptors requested (Tx/Rx: %d) out of range [%d-%d]\n", 747 param->tx_pending, HNS3_RING_MIN_PENDING, 748 HNS3_RING_MAX_PENDING); 749 return -EINVAL; 750 } 751 752 new_desc_num = param->tx_pending; 753 754 /* Hardware requires that its descriptors must be multiple of eight */ 755 new_desc_num = ALIGN(new_desc_num, HNS3_RING_BD_MULTIPLE); 756 old_desc_num = h->kinfo.num_desc; 757 if (old_desc_num == new_desc_num) 758 return 0; 759 760 netdev_info(ndev, 761 "Changing descriptor count from %d to %d.\n", 762 old_desc_num, new_desc_num); 763 764 if (if_running) 765 dev_close(ndev); 766 767 ret = hns3_uninit_all_ring(priv); 768 if (ret) 769 return ret; 770 771 ret = hns3_change_all_ring_bd_num(priv, new_desc_num); 772 if (ret) { 773 ret = hns3_change_all_ring_bd_num(priv, old_desc_num); 774 if (ret) { 775 netdev_err(ndev, 776 "Revert to old bd num fail, ret=%d.\n", ret); 777 return ret; 778 } 779 } 780 781 if (if_running) 782 ret = dev_open(ndev); 783 784 return ret; 785 } 786 787 static int hns3_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 788 { 789 struct hnae3_handle *h = hns3_get_handle(netdev); 790 791 if (!h->ae_algo || !h->ae_algo->ops || !h->ae_algo->ops->set_rss_tuple) 792 return -EOPNOTSUPP; 793 794 switch (cmd->cmd) { 795 case ETHTOOL_SRXFH: 796 return h->ae_algo->ops->set_rss_tuple(h, cmd); 797 default: 798 return -EOPNOTSUPP; 799 } 800 } 801 802 static int hns3_nway_reset(struct net_device *netdev) 803 { 804 struct phy_device *phy = netdev->phydev; 805 806 if (!netif_running(netdev)) 807 return 0; 808 809 /* Only support nway_reset for netdev with phy attached for now */ 810 if (!phy) 811 return -EOPNOTSUPP; 812 813 if (phy->autoneg != AUTONEG_ENABLE) 814 return -EINVAL; 815 816 return genphy_restart_aneg(phy); 817 } 818 819 static void hns3_get_channels(struct net_device *netdev, 820 struct ethtool_channels *ch) 821 { 822 struct hnae3_handle *h = hns3_get_handle(netdev); 823 824 if (h->ae_algo->ops->get_channels) 825 h->ae_algo->ops->get_channels(h, ch); 826 } 827 828 static int hns3_get_coalesce_per_queue(struct net_device *netdev, u32 queue, 829 struct ethtool_coalesce *cmd) 830 { 831 struct hns3_enet_tqp_vector *tx_vector, *rx_vector; 832 struct hns3_nic_priv *priv = netdev_priv(netdev); 833 struct hnae3_handle *h = priv->ae_handle; 834 u16 queue_num = h->kinfo.num_tqps; 835 836 if (queue >= queue_num) { 837 netdev_err(netdev, 838 "Invalid queue value %d! Queue max id=%d\n", 839 queue, queue_num - 1); 840 return -EINVAL; 841 } 842 843 tx_vector = priv->ring_data[queue].ring->tqp_vector; 844 rx_vector = priv->ring_data[queue_num + queue].ring->tqp_vector; 845 846 cmd->use_adaptive_tx_coalesce = 847 tx_vector->tx_group.coal.gl_adapt_enable; 848 cmd->use_adaptive_rx_coalesce = 849 rx_vector->rx_group.coal.gl_adapt_enable; 850 851 cmd->tx_coalesce_usecs = tx_vector->tx_group.coal.int_gl; 852 cmd->rx_coalesce_usecs = rx_vector->rx_group.coal.int_gl; 853 854 cmd->tx_coalesce_usecs_high = h->kinfo.int_rl_setting; 855 cmd->rx_coalesce_usecs_high = h->kinfo.int_rl_setting; 856 857 return 0; 858 } 859 860 static int hns3_get_coalesce(struct net_device *netdev, 861 struct ethtool_coalesce *cmd) 862 { 863 return hns3_get_coalesce_per_queue(netdev, 0, cmd); 864 } 865 866 static int hns3_check_gl_coalesce_para(struct net_device *netdev, 867 struct ethtool_coalesce *cmd) 868 { 869 u32 rx_gl, tx_gl; 870 871 if (cmd->rx_coalesce_usecs > HNS3_INT_GL_MAX) { 872 netdev_err(netdev, 873 "Invalid rx-usecs value, rx-usecs range is 0-%d\n", 874 HNS3_INT_GL_MAX); 875 return -EINVAL; 876 } 877 878 if (cmd->tx_coalesce_usecs > HNS3_INT_GL_MAX) { 879 netdev_err(netdev, 880 "Invalid tx-usecs value, tx-usecs range is 0-%d\n", 881 HNS3_INT_GL_MAX); 882 return -EINVAL; 883 } 884 885 rx_gl = hns3_gl_round_down(cmd->rx_coalesce_usecs); 886 if (rx_gl != cmd->rx_coalesce_usecs) { 887 netdev_info(netdev, 888 "rx_usecs(%d) rounded down to %d, because it must be multiple of 2.\n", 889 cmd->rx_coalesce_usecs, rx_gl); 890 } 891 892 tx_gl = hns3_gl_round_down(cmd->tx_coalesce_usecs); 893 if (tx_gl != cmd->tx_coalesce_usecs) { 894 netdev_info(netdev, 895 "tx_usecs(%d) rounded down to %d, because it must be multiple of 2.\n", 896 cmd->tx_coalesce_usecs, tx_gl); 897 } 898 899 return 0; 900 } 901 902 static int hns3_check_rl_coalesce_para(struct net_device *netdev, 903 struct ethtool_coalesce *cmd) 904 { 905 u32 rl; 906 907 if (cmd->tx_coalesce_usecs_high != cmd->rx_coalesce_usecs_high) { 908 netdev_err(netdev, 909 "tx_usecs_high must be same as rx_usecs_high.\n"); 910 return -EINVAL; 911 } 912 913 if (cmd->rx_coalesce_usecs_high > HNS3_INT_RL_MAX) { 914 netdev_err(netdev, 915 "Invalid usecs_high value, usecs_high range is 0-%d\n", 916 HNS3_INT_RL_MAX); 917 return -EINVAL; 918 } 919 920 rl = hns3_rl_round_down(cmd->rx_coalesce_usecs_high); 921 if (rl != cmd->rx_coalesce_usecs_high) { 922 netdev_info(netdev, 923 "usecs_high(%d) rounded down to %d, because it must be multiple of 4.\n", 924 cmd->rx_coalesce_usecs_high, rl); 925 } 926 927 return 0; 928 } 929 930 static int hns3_check_coalesce_para(struct net_device *netdev, 931 struct ethtool_coalesce *cmd) 932 { 933 int ret; 934 935 ret = hns3_check_gl_coalesce_para(netdev, cmd); 936 if (ret) { 937 netdev_err(netdev, 938 "Check gl coalesce param fail. ret = %d\n", ret); 939 return ret; 940 } 941 942 ret = hns3_check_rl_coalesce_para(netdev, cmd); 943 if (ret) { 944 netdev_err(netdev, 945 "Check rl coalesce param fail. ret = %d\n", ret); 946 return ret; 947 } 948 949 if (cmd->use_adaptive_tx_coalesce == 1 || 950 cmd->use_adaptive_rx_coalesce == 1) { 951 netdev_info(netdev, 952 "adaptive-tx=%d and adaptive-rx=%d, tx_usecs or rx_usecs will changed dynamically.\n", 953 cmd->use_adaptive_tx_coalesce, 954 cmd->use_adaptive_rx_coalesce); 955 } 956 957 return 0; 958 } 959 960 static void hns3_set_coalesce_per_queue(struct net_device *netdev, 961 struct ethtool_coalesce *cmd, 962 u32 queue) 963 { 964 struct hns3_enet_tqp_vector *tx_vector, *rx_vector; 965 struct hns3_nic_priv *priv = netdev_priv(netdev); 966 struct hnae3_handle *h = priv->ae_handle; 967 int queue_num = h->kinfo.num_tqps; 968 969 tx_vector = priv->ring_data[queue].ring->tqp_vector; 970 rx_vector = priv->ring_data[queue_num + queue].ring->tqp_vector; 971 972 tx_vector->tx_group.coal.gl_adapt_enable = 973 cmd->use_adaptive_tx_coalesce; 974 rx_vector->rx_group.coal.gl_adapt_enable = 975 cmd->use_adaptive_rx_coalesce; 976 977 tx_vector->tx_group.coal.int_gl = cmd->tx_coalesce_usecs; 978 rx_vector->rx_group.coal.int_gl = cmd->rx_coalesce_usecs; 979 980 hns3_set_vector_coalesce_tx_gl(tx_vector, 981 tx_vector->tx_group.coal.int_gl); 982 hns3_set_vector_coalesce_rx_gl(rx_vector, 983 rx_vector->rx_group.coal.int_gl); 984 985 hns3_set_vector_coalesce_rl(tx_vector, h->kinfo.int_rl_setting); 986 hns3_set_vector_coalesce_rl(rx_vector, h->kinfo.int_rl_setting); 987 } 988 989 static int hns3_set_coalesce(struct net_device *netdev, 990 struct ethtool_coalesce *cmd) 991 { 992 struct hnae3_handle *h = hns3_get_handle(netdev); 993 u16 queue_num = h->kinfo.num_tqps; 994 int ret; 995 int i; 996 997 ret = hns3_check_coalesce_para(netdev, cmd); 998 if (ret) 999 return ret; 1000 1001 h->kinfo.int_rl_setting = 1002 hns3_rl_round_down(cmd->rx_coalesce_usecs_high); 1003 1004 for (i = 0; i < queue_num; i++) 1005 hns3_set_coalesce_per_queue(netdev, cmd, i); 1006 1007 return 0; 1008 } 1009 1010 static int hns3_get_regs_len(struct net_device *netdev) 1011 { 1012 struct hnae3_handle *h = hns3_get_handle(netdev); 1013 1014 if (!h->ae_algo->ops->get_regs_len) 1015 return -EOPNOTSUPP; 1016 1017 return h->ae_algo->ops->get_regs_len(h); 1018 } 1019 1020 static void hns3_get_regs(struct net_device *netdev, 1021 struct ethtool_regs *cmd, void *data) 1022 { 1023 struct hnae3_handle *h = hns3_get_handle(netdev); 1024 1025 if (!h->ae_algo->ops->get_regs) 1026 return; 1027 1028 h->ae_algo->ops->get_regs(h, &cmd->version, data); 1029 } 1030 1031 static int hns3_set_phys_id(struct net_device *netdev, 1032 enum ethtool_phys_id_state state) 1033 { 1034 struct hnae3_handle *h = hns3_get_handle(netdev); 1035 1036 if (!h->ae_algo || !h->ae_algo->ops || !h->ae_algo->ops->set_led_id) 1037 return -EOPNOTSUPP; 1038 1039 return h->ae_algo->ops->set_led_id(h, state); 1040 } 1041 1042 static const struct ethtool_ops hns3vf_ethtool_ops = { 1043 .get_drvinfo = hns3_get_drvinfo, 1044 .get_ringparam = hns3_get_ringparam, 1045 .set_ringparam = hns3_set_ringparam, 1046 .get_strings = hns3_get_strings, 1047 .get_ethtool_stats = hns3_get_stats, 1048 .get_sset_count = hns3_get_sset_count, 1049 .get_rxnfc = hns3_get_rxnfc, 1050 .get_rxfh_key_size = hns3_get_rss_key_size, 1051 .get_rxfh_indir_size = hns3_get_rss_indir_size, 1052 .get_rxfh = hns3_get_rss, 1053 .set_rxfh = hns3_set_rss, 1054 .get_link_ksettings = hns3_get_link_ksettings, 1055 .get_channels = hns3_get_channels, 1056 .get_coalesce = hns3_get_coalesce, 1057 .set_coalesce = hns3_set_coalesce, 1058 .get_link = hns3_get_link, 1059 }; 1060 1061 static const struct ethtool_ops hns3_ethtool_ops = { 1062 .self_test = hns3_self_test, 1063 .get_drvinfo = hns3_get_drvinfo, 1064 .get_link = hns3_get_link, 1065 .get_ringparam = hns3_get_ringparam, 1066 .set_ringparam = hns3_set_ringparam, 1067 .get_pauseparam = hns3_get_pauseparam, 1068 .set_pauseparam = hns3_set_pauseparam, 1069 .get_strings = hns3_get_strings, 1070 .get_ethtool_stats = hns3_get_stats, 1071 .get_sset_count = hns3_get_sset_count, 1072 .get_rxnfc = hns3_get_rxnfc, 1073 .set_rxnfc = hns3_set_rxnfc, 1074 .get_rxfh_key_size = hns3_get_rss_key_size, 1075 .get_rxfh_indir_size = hns3_get_rss_indir_size, 1076 .get_rxfh = hns3_get_rss, 1077 .set_rxfh = hns3_set_rss, 1078 .get_link_ksettings = hns3_get_link_ksettings, 1079 .set_link_ksettings = hns3_set_link_ksettings, 1080 .nway_reset = hns3_nway_reset, 1081 .get_channels = hns3_get_channels, 1082 .set_channels = hns3_set_channels, 1083 .get_coalesce = hns3_get_coalesce, 1084 .set_coalesce = hns3_set_coalesce, 1085 .get_regs_len = hns3_get_regs_len, 1086 .get_regs = hns3_get_regs, 1087 .set_phys_id = hns3_set_phys_id, 1088 }; 1089 1090 void hns3_ethtool_set_ops(struct net_device *netdev) 1091 { 1092 struct hnae3_handle *h = hns3_get_handle(netdev); 1093 1094 if (h->flags & HNAE3_SUPPORT_VF) 1095 netdev->ethtool_ops = &hns3vf_ethtool_ops; 1096 else 1097 netdev->ethtool_ops = &hns3_ethtool_ops; 1098 } 1099