1 // SPDX-License-Identifier: GPL-2.0 2 /* Marvell RVU Ethernet driver 3 * 4 * Copyright (C) 2020 Marvell. 5 * 6 */ 7 8 #include <linux/pci.h> 9 #include <linux/ethtool.h> 10 #include <linux/stddef.h> 11 #include <linux/etherdevice.h> 12 #include <linux/log2.h> 13 #include <linux/net_tstamp.h> 14 #include <linux/linkmode.h> 15 16 #include "otx2_common.h" 17 #include "otx2_ptp.h" 18 19 #define DRV_NAME "rvu-nicpf" 20 #define DRV_VF_NAME "rvu-nicvf" 21 22 struct otx2_stat { 23 char name[ETH_GSTRING_LEN]; 24 unsigned int index; 25 }; 26 27 /* HW device stats */ 28 #define OTX2_DEV_STAT(stat) { \ 29 .name = #stat, \ 30 .index = offsetof(struct otx2_dev_stats, stat) / sizeof(u64), \ 31 } 32 33 enum link_mode { 34 OTX2_MODE_SUPPORTED, 35 OTX2_MODE_ADVERTISED 36 }; 37 38 static const struct otx2_stat otx2_dev_stats[] = { 39 OTX2_DEV_STAT(rx_ucast_frames), 40 OTX2_DEV_STAT(rx_bcast_frames), 41 OTX2_DEV_STAT(rx_mcast_frames), 42 43 OTX2_DEV_STAT(tx_ucast_frames), 44 OTX2_DEV_STAT(tx_bcast_frames), 45 OTX2_DEV_STAT(tx_mcast_frames), 46 }; 47 48 /* Driver level stats */ 49 #define OTX2_DRV_STAT(stat) { \ 50 .name = #stat, \ 51 .index = offsetof(struct otx2_drv_stats, stat) / sizeof(atomic_t), \ 52 } 53 54 static const struct otx2_stat otx2_drv_stats[] = { 55 OTX2_DRV_STAT(rx_fcs_errs), 56 OTX2_DRV_STAT(rx_oversize_errs), 57 OTX2_DRV_STAT(rx_undersize_errs), 58 OTX2_DRV_STAT(rx_csum_errs), 59 OTX2_DRV_STAT(rx_len_errs), 60 OTX2_DRV_STAT(rx_other_errs), 61 }; 62 63 static const struct otx2_stat otx2_queue_stats[] = { 64 { "bytes", 0 }, 65 { "frames", 1 }, 66 }; 67 68 static const unsigned int otx2_n_dev_stats = ARRAY_SIZE(otx2_dev_stats); 69 static const unsigned int otx2_n_drv_stats = ARRAY_SIZE(otx2_drv_stats); 70 static const unsigned int otx2_n_queue_stats = ARRAY_SIZE(otx2_queue_stats); 71 72 static struct cgx_fw_data *otx2_get_fwdata(struct otx2_nic *pfvf); 73 74 static void otx2_get_drvinfo(struct net_device *netdev, 75 struct ethtool_drvinfo *info) 76 { 77 struct otx2_nic *pfvf = netdev_priv(netdev); 78 79 strscpy(info->driver, DRV_NAME, sizeof(info->driver)); 80 strscpy(info->bus_info, pci_name(pfvf->pdev), sizeof(info->bus_info)); 81 } 82 83 static void otx2_get_qset_strings(struct otx2_nic *pfvf, u8 **data, int qset) 84 { 85 int start_qidx = qset * pfvf->hw.rx_queues; 86 int qidx, stats; 87 88 for (qidx = 0; qidx < pfvf->hw.rx_queues; qidx++) { 89 for (stats = 0; stats < otx2_n_queue_stats; stats++) { 90 sprintf(*data, "rxq%d: %s", qidx + start_qidx, 91 otx2_queue_stats[stats].name); 92 *data += ETH_GSTRING_LEN; 93 } 94 } 95 for (qidx = 0; qidx < pfvf->hw.tx_queues; qidx++) { 96 for (stats = 0; stats < otx2_n_queue_stats; stats++) { 97 sprintf(*data, "txq%d: %s", qidx + start_qidx, 98 otx2_queue_stats[stats].name); 99 *data += ETH_GSTRING_LEN; 100 } 101 } 102 } 103 104 static void otx2_get_strings(struct net_device *netdev, u32 sset, u8 *data) 105 { 106 struct otx2_nic *pfvf = netdev_priv(netdev); 107 int stats; 108 109 if (sset != ETH_SS_STATS) 110 return; 111 112 for (stats = 0; stats < otx2_n_dev_stats; stats++) { 113 memcpy(data, otx2_dev_stats[stats].name, ETH_GSTRING_LEN); 114 data += ETH_GSTRING_LEN; 115 } 116 117 for (stats = 0; stats < otx2_n_drv_stats; stats++) { 118 memcpy(data, otx2_drv_stats[stats].name, ETH_GSTRING_LEN); 119 data += ETH_GSTRING_LEN; 120 } 121 122 otx2_get_qset_strings(pfvf, &data, 0); 123 124 if (!test_bit(CN10K_RPM, &pfvf->hw.cap_flag)) { 125 for (stats = 0; stats < CGX_RX_STATS_COUNT; stats++) { 126 sprintf(data, "cgx_rxstat%d: ", stats); 127 data += ETH_GSTRING_LEN; 128 } 129 130 for (stats = 0; stats < CGX_TX_STATS_COUNT; stats++) { 131 sprintf(data, "cgx_txstat%d: ", stats); 132 data += ETH_GSTRING_LEN; 133 } 134 } 135 136 strcpy(data, "reset_count"); 137 data += ETH_GSTRING_LEN; 138 sprintf(data, "Fec Corrected Errors: "); 139 data += ETH_GSTRING_LEN; 140 sprintf(data, "Fec Uncorrected Errors: "); 141 data += ETH_GSTRING_LEN; 142 } 143 144 static void otx2_get_qset_stats(struct otx2_nic *pfvf, 145 struct ethtool_stats *stats, u64 **data) 146 { 147 int stat, qidx; 148 149 if (!pfvf) 150 return; 151 for (qidx = 0; qidx < pfvf->hw.rx_queues; qidx++) { 152 if (!otx2_update_rq_stats(pfvf, qidx)) { 153 for (stat = 0; stat < otx2_n_queue_stats; stat++) 154 *((*data)++) = 0; 155 continue; 156 } 157 for (stat = 0; stat < otx2_n_queue_stats; stat++) 158 *((*data)++) = ((u64 *)&pfvf->qset.rq[qidx].stats) 159 [otx2_queue_stats[stat].index]; 160 } 161 162 for (qidx = 0; qidx < pfvf->hw.tx_queues; qidx++) { 163 if (!otx2_update_sq_stats(pfvf, qidx)) { 164 for (stat = 0; stat < otx2_n_queue_stats; stat++) 165 *((*data)++) = 0; 166 continue; 167 } 168 for (stat = 0; stat < otx2_n_queue_stats; stat++) 169 *((*data)++) = ((u64 *)&pfvf->qset.sq[qidx].stats) 170 [otx2_queue_stats[stat].index]; 171 } 172 } 173 174 static int otx2_get_phy_fec_stats(struct otx2_nic *pfvf) 175 { 176 struct msg_req *req; 177 int rc = -ENOMEM; 178 179 mutex_lock(&pfvf->mbox.lock); 180 req = otx2_mbox_alloc_msg_cgx_get_phy_fec_stats(&pfvf->mbox); 181 if (!req) 182 goto end; 183 184 if (!otx2_sync_mbox_msg(&pfvf->mbox)) 185 rc = 0; 186 end: 187 mutex_unlock(&pfvf->mbox.lock); 188 return rc; 189 } 190 191 /* Get device and per queue statistics */ 192 static void otx2_get_ethtool_stats(struct net_device *netdev, 193 struct ethtool_stats *stats, u64 *data) 194 { 195 struct otx2_nic *pfvf = netdev_priv(netdev); 196 u64 fec_corr_blks, fec_uncorr_blks; 197 struct cgx_fw_data *rsp; 198 int stat; 199 200 otx2_get_dev_stats(pfvf); 201 for (stat = 0; stat < otx2_n_dev_stats; stat++) 202 *(data++) = ((u64 *)&pfvf->hw.dev_stats) 203 [otx2_dev_stats[stat].index]; 204 205 for (stat = 0; stat < otx2_n_drv_stats; stat++) 206 *(data++) = atomic_read(&((atomic_t *)&pfvf->hw.drv_stats) 207 [otx2_drv_stats[stat].index]); 208 209 otx2_get_qset_stats(pfvf, stats, &data); 210 211 if (!test_bit(CN10K_RPM, &pfvf->hw.cap_flag)) { 212 otx2_update_lmac_stats(pfvf); 213 for (stat = 0; stat < CGX_RX_STATS_COUNT; stat++) 214 *(data++) = pfvf->hw.cgx_rx_stats[stat]; 215 for (stat = 0; stat < CGX_TX_STATS_COUNT; stat++) 216 *(data++) = pfvf->hw.cgx_tx_stats[stat]; 217 } 218 219 *(data++) = pfvf->reset_count; 220 221 fec_corr_blks = pfvf->hw.cgx_fec_corr_blks; 222 fec_uncorr_blks = pfvf->hw.cgx_fec_uncorr_blks; 223 224 rsp = otx2_get_fwdata(pfvf); 225 if (!IS_ERR(rsp) && rsp->fwdata.phy.misc.has_fec_stats && 226 !otx2_get_phy_fec_stats(pfvf)) { 227 /* Fetch fwdata again because it's been recently populated with 228 * latest PHY FEC stats. 229 */ 230 rsp = otx2_get_fwdata(pfvf); 231 if (!IS_ERR(rsp)) { 232 struct fec_stats_s *p = &rsp->fwdata.phy.fec_stats; 233 234 if (pfvf->linfo.fec == OTX2_FEC_BASER) { 235 fec_corr_blks = p->brfec_corr_blks; 236 fec_uncorr_blks = p->brfec_uncorr_blks; 237 } else { 238 fec_corr_blks = p->rsfec_corr_cws; 239 fec_uncorr_blks = p->rsfec_uncorr_cws; 240 } 241 } 242 } 243 244 *(data++) = fec_corr_blks; 245 *(data++) = fec_uncorr_blks; 246 } 247 248 static int otx2_get_sset_count(struct net_device *netdev, int sset) 249 { 250 struct otx2_nic *pfvf = netdev_priv(netdev); 251 int qstats_count, mac_stats = 0; 252 253 if (sset != ETH_SS_STATS) 254 return -EINVAL; 255 256 qstats_count = otx2_n_queue_stats * 257 (pfvf->hw.rx_queues + pfvf->hw.tx_queues); 258 if (!test_bit(CN10K_RPM, &pfvf->hw.cap_flag)) 259 mac_stats = CGX_RX_STATS_COUNT + CGX_TX_STATS_COUNT; 260 otx2_update_lmac_fec_stats(pfvf); 261 262 return otx2_n_dev_stats + otx2_n_drv_stats + qstats_count + 263 mac_stats + OTX2_FEC_STATS_CNT + 1; 264 } 265 266 /* Get no of queues device supports and current queue count */ 267 static void otx2_get_channels(struct net_device *dev, 268 struct ethtool_channels *channel) 269 { 270 struct otx2_nic *pfvf = netdev_priv(dev); 271 272 channel->max_rx = pfvf->hw.max_queues; 273 channel->max_tx = pfvf->hw.max_queues; 274 275 channel->rx_count = pfvf->hw.rx_queues; 276 channel->tx_count = pfvf->hw.tx_queues; 277 } 278 279 /* Set no of Tx, Rx queues to be used */ 280 static int otx2_set_channels(struct net_device *dev, 281 struct ethtool_channels *channel) 282 { 283 struct otx2_nic *pfvf = netdev_priv(dev); 284 bool if_up = netif_running(dev); 285 int err = 0; 286 287 if (!channel->rx_count || !channel->tx_count) 288 return -EINVAL; 289 290 if (bitmap_weight(&pfvf->rq_bmap, pfvf->hw.rx_queues) > 1) { 291 netdev_err(dev, 292 "Receive queues are in use by TC police action\n"); 293 return -EINVAL; 294 } 295 296 if (if_up) 297 dev->netdev_ops->ndo_stop(dev); 298 299 err = otx2_set_real_num_queues(dev, channel->tx_count, 300 channel->rx_count); 301 if (err) 302 return err; 303 304 pfvf->hw.rx_queues = channel->rx_count; 305 pfvf->hw.tx_queues = channel->tx_count; 306 pfvf->qset.cq_cnt = pfvf->hw.tx_queues + pfvf->hw.rx_queues; 307 308 if (if_up) 309 err = dev->netdev_ops->ndo_open(dev); 310 311 netdev_info(dev, "Setting num Tx rings to %d, Rx rings to %d success\n", 312 pfvf->hw.tx_queues, pfvf->hw.rx_queues); 313 314 return err; 315 } 316 317 static void otx2_get_pauseparam(struct net_device *netdev, 318 struct ethtool_pauseparam *pause) 319 { 320 struct otx2_nic *pfvf = netdev_priv(netdev); 321 struct cgx_pause_frm_cfg *req, *rsp; 322 323 if (is_otx2_lbkvf(pfvf->pdev)) 324 return; 325 326 req = otx2_mbox_alloc_msg_cgx_cfg_pause_frm(&pfvf->mbox); 327 if (!req) 328 return; 329 330 if (!otx2_sync_mbox_msg(&pfvf->mbox)) { 331 rsp = (struct cgx_pause_frm_cfg *) 332 otx2_mbox_get_rsp(&pfvf->mbox.mbox, 0, &req->hdr); 333 pause->rx_pause = rsp->rx_pause; 334 pause->tx_pause = rsp->tx_pause; 335 } 336 } 337 338 static int otx2_set_pauseparam(struct net_device *netdev, 339 struct ethtool_pauseparam *pause) 340 { 341 struct otx2_nic *pfvf = netdev_priv(netdev); 342 343 if (pause->autoneg) 344 return -EOPNOTSUPP; 345 346 if (is_otx2_lbkvf(pfvf->pdev)) 347 return -EOPNOTSUPP; 348 349 if (pause->rx_pause) 350 pfvf->flags |= OTX2_FLAG_RX_PAUSE_ENABLED; 351 else 352 pfvf->flags &= ~OTX2_FLAG_RX_PAUSE_ENABLED; 353 354 if (pause->tx_pause) 355 pfvf->flags |= OTX2_FLAG_TX_PAUSE_ENABLED; 356 else 357 pfvf->flags &= ~OTX2_FLAG_TX_PAUSE_ENABLED; 358 359 return otx2_config_pause_frm(pfvf); 360 } 361 362 static void otx2_get_ringparam(struct net_device *netdev, 363 struct ethtool_ringparam *ring, 364 struct kernel_ethtool_ringparam *kernel_ring, 365 struct netlink_ext_ack *extack) 366 { 367 struct otx2_nic *pfvf = netdev_priv(netdev); 368 struct otx2_qset *qs = &pfvf->qset; 369 370 ring->rx_max_pending = Q_COUNT(Q_SIZE_MAX); 371 ring->rx_pending = qs->rqe_cnt ? qs->rqe_cnt : Q_COUNT(Q_SIZE_256); 372 ring->tx_max_pending = Q_COUNT(Q_SIZE_MAX); 373 ring->tx_pending = qs->sqe_cnt ? qs->sqe_cnt : Q_COUNT(Q_SIZE_4K); 374 kernel_ring->rx_buf_len = pfvf->hw.rbuf_len; 375 kernel_ring->cqe_size = pfvf->hw.xqe_size; 376 } 377 378 static int otx2_set_ringparam(struct net_device *netdev, 379 struct ethtool_ringparam *ring, 380 struct kernel_ethtool_ringparam *kernel_ring, 381 struct netlink_ext_ack *extack) 382 { 383 struct otx2_nic *pfvf = netdev_priv(netdev); 384 u32 rx_buf_len = kernel_ring->rx_buf_len; 385 u32 old_rx_buf_len = pfvf->hw.rbuf_len; 386 u32 xqe_size = kernel_ring->cqe_size; 387 bool if_up = netif_running(netdev); 388 struct otx2_qset *qs = &pfvf->qset; 389 u32 rx_count, tx_count; 390 391 if (ring->rx_mini_pending || ring->rx_jumbo_pending) 392 return -EINVAL; 393 394 /* Hardware supports max size of 32k for a receive buffer 395 * and 1536 is typical ethernet frame size. 396 */ 397 if (rx_buf_len && (rx_buf_len < 1536 || rx_buf_len > 32768)) { 398 netdev_err(netdev, 399 "Receive buffer range is 1536 - 32768"); 400 return -EINVAL; 401 } 402 403 if (xqe_size != 128 && xqe_size != 512) { 404 netdev_err(netdev, 405 "Completion event size must be 128 or 512"); 406 return -EINVAL; 407 } 408 409 /* Permitted lengths are 16 64 256 1K 4K 16K 64K 256K 1M */ 410 rx_count = ring->rx_pending; 411 /* On some silicon variants a skid or reserved CQEs are 412 * needed to avoid CQ overflow. 413 */ 414 if (rx_count < pfvf->hw.rq_skid) 415 rx_count = pfvf->hw.rq_skid; 416 rx_count = Q_COUNT(Q_SIZE(rx_count, 3)); 417 418 /* Due pipelining impact minimum 2000 unused SQ CQE's 419 * need to be maintained to avoid CQ overflow, hence the 420 * minimum 4K size. 421 */ 422 tx_count = clamp_t(u32, ring->tx_pending, 423 Q_COUNT(Q_SIZE_4K), Q_COUNT(Q_SIZE_MAX)); 424 tx_count = Q_COUNT(Q_SIZE(tx_count, 3)); 425 426 if (tx_count == qs->sqe_cnt && rx_count == qs->rqe_cnt && 427 rx_buf_len == old_rx_buf_len && xqe_size == pfvf->hw.xqe_size) 428 return 0; 429 430 if (if_up) 431 netdev->netdev_ops->ndo_stop(netdev); 432 433 /* Assigned to the nearest possible exponent. */ 434 qs->sqe_cnt = tx_count; 435 qs->rqe_cnt = rx_count; 436 437 pfvf->hw.rbuf_len = rx_buf_len; 438 pfvf->hw.xqe_size = xqe_size; 439 440 if (if_up) 441 return netdev->netdev_ops->ndo_open(netdev); 442 443 return 0; 444 } 445 446 static int otx2_get_coalesce(struct net_device *netdev, 447 struct ethtool_coalesce *cmd, 448 struct kernel_ethtool_coalesce *kernel_coal, 449 struct netlink_ext_ack *extack) 450 { 451 struct otx2_nic *pfvf = netdev_priv(netdev); 452 struct otx2_hw *hw = &pfvf->hw; 453 454 cmd->rx_coalesce_usecs = hw->cq_time_wait; 455 cmd->rx_max_coalesced_frames = hw->cq_ecount_wait; 456 cmd->tx_coalesce_usecs = hw->cq_time_wait; 457 cmd->tx_max_coalesced_frames = hw->cq_ecount_wait; 458 if ((pfvf->flags & OTX2_FLAG_ADPTV_INT_COAL_ENABLED) == 459 OTX2_FLAG_ADPTV_INT_COAL_ENABLED) { 460 cmd->use_adaptive_rx_coalesce = 1; 461 cmd->use_adaptive_tx_coalesce = 1; 462 } else { 463 cmd->use_adaptive_rx_coalesce = 0; 464 cmd->use_adaptive_tx_coalesce = 0; 465 } 466 467 return 0; 468 } 469 470 static int otx2_set_coalesce(struct net_device *netdev, 471 struct ethtool_coalesce *ec, 472 struct kernel_ethtool_coalesce *kernel_coal, 473 struct netlink_ext_ack *extack) 474 { 475 struct otx2_nic *pfvf = netdev_priv(netdev); 476 struct otx2_hw *hw = &pfvf->hw; 477 u8 priv_coalesce_status; 478 int qidx; 479 480 if (!ec->rx_max_coalesced_frames || !ec->tx_max_coalesced_frames) 481 return 0; 482 483 if (ec->use_adaptive_rx_coalesce != ec->use_adaptive_tx_coalesce) { 484 netdev_err(netdev, 485 "adaptive-rx should be same as adaptive-tx"); 486 return -EINVAL; 487 } 488 489 /* Check and update coalesce status */ 490 if ((pfvf->flags & OTX2_FLAG_ADPTV_INT_COAL_ENABLED) == 491 OTX2_FLAG_ADPTV_INT_COAL_ENABLED) { 492 priv_coalesce_status = 1; 493 if (!ec->use_adaptive_rx_coalesce) 494 pfvf->flags &= ~OTX2_FLAG_ADPTV_INT_COAL_ENABLED; 495 } else { 496 priv_coalesce_status = 0; 497 if (ec->use_adaptive_rx_coalesce) 498 pfvf->flags |= OTX2_FLAG_ADPTV_INT_COAL_ENABLED; 499 } 500 501 /* 'cq_time_wait' is 8bit and is in multiple of 100ns, 502 * so clamp the user given value to the range of 1 to 25usec. 503 */ 504 ec->rx_coalesce_usecs = clamp_t(u32, ec->rx_coalesce_usecs, 505 1, CQ_TIMER_THRESH_MAX); 506 ec->tx_coalesce_usecs = clamp_t(u32, ec->tx_coalesce_usecs, 507 1, CQ_TIMER_THRESH_MAX); 508 509 /* Rx and Tx are mapped to same CQ, check which one 510 * is changed, if both then choose the min. 511 */ 512 if (hw->cq_time_wait == ec->rx_coalesce_usecs) 513 hw->cq_time_wait = ec->tx_coalesce_usecs; 514 else if (hw->cq_time_wait == ec->tx_coalesce_usecs) 515 hw->cq_time_wait = ec->rx_coalesce_usecs; 516 else 517 hw->cq_time_wait = min_t(u8, ec->rx_coalesce_usecs, 518 ec->tx_coalesce_usecs); 519 520 /* Max ecount_wait supported is 16bit, 521 * so clamp the user given value to the range of 1 to 64k. 522 */ 523 ec->rx_max_coalesced_frames = clamp_t(u32, ec->rx_max_coalesced_frames, 524 1, NAPI_POLL_WEIGHT); 525 ec->tx_max_coalesced_frames = clamp_t(u32, ec->tx_max_coalesced_frames, 526 1, NAPI_POLL_WEIGHT); 527 528 /* Rx and Tx are mapped to same CQ, check which one 529 * is changed, if both then choose the min. 530 */ 531 if (hw->cq_ecount_wait == ec->rx_max_coalesced_frames) 532 hw->cq_ecount_wait = ec->tx_max_coalesced_frames; 533 else if (hw->cq_ecount_wait == ec->tx_max_coalesced_frames) 534 hw->cq_ecount_wait = ec->rx_max_coalesced_frames; 535 else 536 hw->cq_ecount_wait = min_t(u16, ec->rx_max_coalesced_frames, 537 ec->tx_max_coalesced_frames); 538 539 /* Reset 'cq_time_wait' and 'cq_ecount_wait' to 540 * default values if coalesce status changed from 541 * 'on' to 'off'. 542 */ 543 if (priv_coalesce_status && 544 ((pfvf->flags & OTX2_FLAG_ADPTV_INT_COAL_ENABLED) != 545 OTX2_FLAG_ADPTV_INT_COAL_ENABLED)) { 546 hw->cq_time_wait = CQ_TIMER_THRESH_DEFAULT; 547 hw->cq_ecount_wait = CQ_CQE_THRESH_DEFAULT; 548 } 549 550 if (netif_running(netdev)) { 551 for (qidx = 0; qidx < pfvf->hw.cint_cnt; qidx++) 552 otx2_config_irq_coalescing(pfvf, qidx); 553 } 554 555 return 0; 556 } 557 558 static int otx2_get_rss_hash_opts(struct otx2_nic *pfvf, 559 struct ethtool_rxnfc *nfc) 560 { 561 struct otx2_rss_info *rss = &pfvf->hw.rss_info; 562 563 if (!(rss->flowkey_cfg & 564 (NIX_FLOW_KEY_TYPE_IPV4 | NIX_FLOW_KEY_TYPE_IPV6))) 565 return 0; 566 567 /* Mimimum is IPv4 and IPv6, SIP/DIP */ 568 nfc->data = RXH_IP_SRC | RXH_IP_DST; 569 if (rss->flowkey_cfg & NIX_FLOW_KEY_TYPE_VLAN) 570 nfc->data |= RXH_VLAN; 571 572 switch (nfc->flow_type) { 573 case TCP_V4_FLOW: 574 case TCP_V6_FLOW: 575 if (rss->flowkey_cfg & NIX_FLOW_KEY_TYPE_TCP) 576 nfc->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 577 break; 578 case UDP_V4_FLOW: 579 case UDP_V6_FLOW: 580 if (rss->flowkey_cfg & NIX_FLOW_KEY_TYPE_UDP) 581 nfc->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 582 break; 583 case SCTP_V4_FLOW: 584 case SCTP_V6_FLOW: 585 if (rss->flowkey_cfg & NIX_FLOW_KEY_TYPE_SCTP) 586 nfc->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 587 break; 588 case AH_ESP_V4_FLOW: 589 case AH_ESP_V6_FLOW: 590 if (rss->flowkey_cfg & NIX_FLOW_KEY_TYPE_ESP) 591 nfc->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 592 break; 593 case AH_V4_FLOW: 594 case ESP_V4_FLOW: 595 case IPV4_FLOW: 596 break; 597 case AH_V6_FLOW: 598 case ESP_V6_FLOW: 599 case IPV6_FLOW: 600 break; 601 default: 602 return -EINVAL; 603 } 604 605 return 0; 606 } 607 608 static int otx2_set_rss_hash_opts(struct otx2_nic *pfvf, 609 struct ethtool_rxnfc *nfc) 610 { 611 struct otx2_rss_info *rss = &pfvf->hw.rss_info; 612 u32 rxh_l4 = RXH_L4_B_0_1 | RXH_L4_B_2_3; 613 u32 rss_cfg = rss->flowkey_cfg; 614 615 if (!rss->enable) { 616 netdev_err(pfvf->netdev, 617 "RSS is disabled, cannot change settings\n"); 618 return -EIO; 619 } 620 621 /* Mimimum is IPv4 and IPv6, SIP/DIP */ 622 if (!(nfc->data & RXH_IP_SRC) || !(nfc->data & RXH_IP_DST)) 623 return -EINVAL; 624 625 if (nfc->data & RXH_VLAN) 626 rss_cfg |= NIX_FLOW_KEY_TYPE_VLAN; 627 else 628 rss_cfg &= ~NIX_FLOW_KEY_TYPE_VLAN; 629 630 switch (nfc->flow_type) { 631 case TCP_V4_FLOW: 632 case TCP_V6_FLOW: 633 /* Different config for v4 and v6 is not supported. 634 * Both of them have to be either 4-tuple or 2-tuple. 635 */ 636 switch (nfc->data & rxh_l4) { 637 case 0: 638 rss_cfg &= ~NIX_FLOW_KEY_TYPE_TCP; 639 break; 640 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 641 rss_cfg |= NIX_FLOW_KEY_TYPE_TCP; 642 break; 643 default: 644 return -EINVAL; 645 } 646 break; 647 case UDP_V4_FLOW: 648 case UDP_V6_FLOW: 649 switch (nfc->data & rxh_l4) { 650 case 0: 651 rss_cfg &= ~NIX_FLOW_KEY_TYPE_UDP; 652 break; 653 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 654 rss_cfg |= NIX_FLOW_KEY_TYPE_UDP; 655 break; 656 default: 657 return -EINVAL; 658 } 659 break; 660 case SCTP_V4_FLOW: 661 case SCTP_V6_FLOW: 662 switch (nfc->data & rxh_l4) { 663 case 0: 664 rss_cfg &= ~NIX_FLOW_KEY_TYPE_SCTP; 665 break; 666 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 667 rss_cfg |= NIX_FLOW_KEY_TYPE_SCTP; 668 break; 669 default: 670 return -EINVAL; 671 } 672 break; 673 case AH_ESP_V4_FLOW: 674 case AH_ESP_V6_FLOW: 675 switch (nfc->data & rxh_l4) { 676 case 0: 677 rss_cfg &= ~(NIX_FLOW_KEY_TYPE_ESP | 678 NIX_FLOW_KEY_TYPE_AH); 679 rss_cfg |= NIX_FLOW_KEY_TYPE_VLAN | 680 NIX_FLOW_KEY_TYPE_IPV4_PROTO; 681 break; 682 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 683 /* If VLAN hashing is also requested for ESP then do not 684 * allow because of hardware 40 bytes flow key limit. 685 */ 686 if (rss_cfg & NIX_FLOW_KEY_TYPE_VLAN) { 687 netdev_err(pfvf->netdev, 688 "RSS hash of ESP or AH with VLAN is not supported\n"); 689 return -EOPNOTSUPP; 690 } 691 692 rss_cfg |= NIX_FLOW_KEY_TYPE_ESP | NIX_FLOW_KEY_TYPE_AH; 693 /* Disable IPv4 proto hashing since IPv6 SA+DA(32 bytes) 694 * and ESP SPI+sequence(8 bytes) uses hardware maximum 695 * limit of 40 byte flow key. 696 */ 697 rss_cfg &= ~NIX_FLOW_KEY_TYPE_IPV4_PROTO; 698 break; 699 default: 700 return -EINVAL; 701 } 702 break; 703 case IPV4_FLOW: 704 case IPV6_FLOW: 705 rss_cfg = NIX_FLOW_KEY_TYPE_IPV4 | NIX_FLOW_KEY_TYPE_IPV6; 706 break; 707 default: 708 return -EINVAL; 709 } 710 711 rss->flowkey_cfg = rss_cfg; 712 otx2_set_flowkey_cfg(pfvf); 713 return 0; 714 } 715 716 static int otx2_get_rxnfc(struct net_device *dev, 717 struct ethtool_rxnfc *nfc, u32 *rules) 718 { 719 bool ntuple = !!(dev->features & NETIF_F_NTUPLE); 720 struct otx2_nic *pfvf = netdev_priv(dev); 721 int ret = -EOPNOTSUPP; 722 723 switch (nfc->cmd) { 724 case ETHTOOL_GRXRINGS: 725 nfc->data = pfvf->hw.rx_queues; 726 ret = 0; 727 break; 728 case ETHTOOL_GRXCLSRLCNT: 729 if (netif_running(dev) && ntuple) { 730 nfc->rule_cnt = pfvf->flow_cfg->nr_flows; 731 ret = 0; 732 } 733 break; 734 case ETHTOOL_GRXCLSRULE: 735 if (netif_running(dev) && ntuple) 736 ret = otx2_get_flow(pfvf, nfc, nfc->fs.location); 737 break; 738 case ETHTOOL_GRXCLSRLALL: 739 if (netif_running(dev) && ntuple) 740 ret = otx2_get_all_flows(pfvf, nfc, rules); 741 break; 742 case ETHTOOL_GRXFH: 743 return otx2_get_rss_hash_opts(pfvf, nfc); 744 default: 745 break; 746 } 747 return ret; 748 } 749 750 static int otx2_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *nfc) 751 { 752 bool ntuple = !!(dev->features & NETIF_F_NTUPLE); 753 struct otx2_nic *pfvf = netdev_priv(dev); 754 int ret = -EOPNOTSUPP; 755 756 switch (nfc->cmd) { 757 case ETHTOOL_SRXFH: 758 ret = otx2_set_rss_hash_opts(pfvf, nfc); 759 break; 760 case ETHTOOL_SRXCLSRLINS: 761 if (netif_running(dev) && ntuple) 762 ret = otx2_add_flow(pfvf, nfc); 763 break; 764 case ETHTOOL_SRXCLSRLDEL: 765 if (netif_running(dev) && ntuple) 766 ret = otx2_remove_flow(pfvf, nfc->fs.location); 767 break; 768 default: 769 break; 770 } 771 772 return ret; 773 } 774 775 static u32 otx2_get_rxfh_key_size(struct net_device *netdev) 776 { 777 struct otx2_nic *pfvf = netdev_priv(netdev); 778 struct otx2_rss_info *rss; 779 780 rss = &pfvf->hw.rss_info; 781 782 return sizeof(rss->key); 783 } 784 785 static u32 otx2_get_rxfh_indir_size(struct net_device *dev) 786 { 787 return MAX_RSS_INDIR_TBL_SIZE; 788 } 789 790 static int otx2_rss_ctx_delete(struct otx2_nic *pfvf, int ctx_id) 791 { 792 struct otx2_rss_info *rss = &pfvf->hw.rss_info; 793 794 otx2_rss_ctx_flow_del(pfvf, ctx_id); 795 kfree(rss->rss_ctx[ctx_id]); 796 rss->rss_ctx[ctx_id] = NULL; 797 798 return 0; 799 } 800 801 static int otx2_rss_ctx_create(struct otx2_nic *pfvf, 802 u32 *rss_context) 803 { 804 struct otx2_rss_info *rss = &pfvf->hw.rss_info; 805 u8 ctx; 806 807 for (ctx = 0; ctx < MAX_RSS_GROUPS; ctx++) { 808 if (!rss->rss_ctx[ctx]) 809 break; 810 } 811 if (ctx == MAX_RSS_GROUPS) 812 return -EINVAL; 813 814 rss->rss_ctx[ctx] = kzalloc(sizeof(*rss->rss_ctx[ctx]), GFP_KERNEL); 815 if (!rss->rss_ctx[ctx]) 816 return -ENOMEM; 817 *rss_context = ctx; 818 819 return 0; 820 } 821 822 /* RSS context configuration */ 823 static int otx2_set_rxfh_context(struct net_device *dev, const u32 *indir, 824 const u8 *hkey, const u8 hfunc, 825 u32 *rss_context, bool delete) 826 { 827 struct otx2_nic *pfvf = netdev_priv(dev); 828 struct otx2_rss_ctx *rss_ctx; 829 struct otx2_rss_info *rss; 830 int ret, idx; 831 832 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 833 return -EOPNOTSUPP; 834 835 if (*rss_context != ETH_RXFH_CONTEXT_ALLOC && 836 *rss_context >= MAX_RSS_GROUPS) 837 return -EINVAL; 838 839 rss = &pfvf->hw.rss_info; 840 841 if (!rss->enable) { 842 netdev_err(dev, "RSS is disabled, cannot change settings\n"); 843 return -EIO; 844 } 845 846 if (hkey) { 847 memcpy(rss->key, hkey, sizeof(rss->key)); 848 otx2_set_rss_key(pfvf); 849 } 850 if (delete) 851 return otx2_rss_ctx_delete(pfvf, *rss_context); 852 853 if (*rss_context == ETH_RXFH_CONTEXT_ALLOC) { 854 ret = otx2_rss_ctx_create(pfvf, rss_context); 855 if (ret) 856 return ret; 857 } 858 if (indir) { 859 rss_ctx = rss->rss_ctx[*rss_context]; 860 for (idx = 0; idx < rss->rss_size; idx++) 861 rss_ctx->ind_tbl[idx] = indir[idx]; 862 } 863 otx2_set_rss_table(pfvf, *rss_context); 864 865 return 0; 866 } 867 868 static int otx2_get_rxfh_context(struct net_device *dev, u32 *indir, 869 u8 *hkey, u8 *hfunc, u32 rss_context) 870 { 871 struct otx2_nic *pfvf = netdev_priv(dev); 872 struct otx2_rss_ctx *rss_ctx; 873 struct otx2_rss_info *rss; 874 int idx, rx_queues; 875 876 rss = &pfvf->hw.rss_info; 877 878 if (hfunc) 879 *hfunc = ETH_RSS_HASH_TOP; 880 881 if (!indir) 882 return 0; 883 884 if (!rss->enable && rss_context == DEFAULT_RSS_CONTEXT_GROUP) { 885 rx_queues = pfvf->hw.rx_queues; 886 for (idx = 0; idx < MAX_RSS_INDIR_TBL_SIZE; idx++) 887 indir[idx] = ethtool_rxfh_indir_default(idx, rx_queues); 888 return 0; 889 } 890 if (rss_context >= MAX_RSS_GROUPS) 891 return -ENOENT; 892 893 rss_ctx = rss->rss_ctx[rss_context]; 894 if (!rss_ctx) 895 return -ENOENT; 896 897 if (indir) { 898 for (idx = 0; idx < rss->rss_size; idx++) 899 indir[idx] = rss_ctx->ind_tbl[idx]; 900 } 901 if (hkey) 902 memcpy(hkey, rss->key, sizeof(rss->key)); 903 904 return 0; 905 } 906 907 /* Get RSS configuration */ 908 static int otx2_get_rxfh(struct net_device *dev, u32 *indir, 909 u8 *hkey, u8 *hfunc) 910 { 911 return otx2_get_rxfh_context(dev, indir, hkey, hfunc, 912 DEFAULT_RSS_CONTEXT_GROUP); 913 } 914 915 /* Configure RSS table and hash key */ 916 static int otx2_set_rxfh(struct net_device *dev, const u32 *indir, 917 const u8 *hkey, const u8 hfunc) 918 { 919 920 u32 rss_context = DEFAULT_RSS_CONTEXT_GROUP; 921 922 return otx2_set_rxfh_context(dev, indir, hkey, hfunc, &rss_context, 0); 923 } 924 925 static u32 otx2_get_msglevel(struct net_device *netdev) 926 { 927 struct otx2_nic *pfvf = netdev_priv(netdev); 928 929 return pfvf->msg_enable; 930 } 931 932 static void otx2_set_msglevel(struct net_device *netdev, u32 val) 933 { 934 struct otx2_nic *pfvf = netdev_priv(netdev); 935 936 pfvf->msg_enable = val; 937 } 938 939 static u32 otx2_get_link(struct net_device *netdev) 940 { 941 struct otx2_nic *pfvf = netdev_priv(netdev); 942 943 /* LBK link is internal and always UP */ 944 if (is_otx2_lbkvf(pfvf->pdev)) 945 return 1; 946 return pfvf->linfo.link_up; 947 } 948 949 static int otx2_get_ts_info(struct net_device *netdev, 950 struct ethtool_ts_info *info) 951 { 952 struct otx2_nic *pfvf = netdev_priv(netdev); 953 954 if (!pfvf->ptp) 955 return ethtool_op_get_ts_info(netdev, info); 956 957 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 958 SOF_TIMESTAMPING_RX_SOFTWARE | 959 SOF_TIMESTAMPING_SOFTWARE | 960 SOF_TIMESTAMPING_TX_HARDWARE | 961 SOF_TIMESTAMPING_RX_HARDWARE | 962 SOF_TIMESTAMPING_RAW_HARDWARE; 963 964 info->phc_index = otx2_ptp_clock_index(pfvf); 965 966 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); 967 if (test_bit(CN10K_PTP_ONESTEP, &pfvf->hw.cap_flag)) 968 info->tx_types |= BIT(HWTSTAMP_TX_ONESTEP_SYNC); 969 970 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | 971 BIT(HWTSTAMP_FILTER_ALL); 972 973 return 0; 974 } 975 976 static struct cgx_fw_data *otx2_get_fwdata(struct otx2_nic *pfvf) 977 { 978 struct cgx_fw_data *rsp = NULL; 979 struct msg_req *req; 980 int err = 0; 981 982 mutex_lock(&pfvf->mbox.lock); 983 req = otx2_mbox_alloc_msg_cgx_get_aux_link_info(&pfvf->mbox); 984 if (!req) { 985 mutex_unlock(&pfvf->mbox.lock); 986 return ERR_PTR(-ENOMEM); 987 } 988 989 err = otx2_sync_mbox_msg(&pfvf->mbox); 990 if (!err) { 991 rsp = (struct cgx_fw_data *) 992 otx2_mbox_get_rsp(&pfvf->mbox.mbox, 0, &req->hdr); 993 } else { 994 rsp = ERR_PTR(err); 995 } 996 997 mutex_unlock(&pfvf->mbox.lock); 998 return rsp; 999 } 1000 1001 static int otx2_get_fecparam(struct net_device *netdev, 1002 struct ethtool_fecparam *fecparam) 1003 { 1004 struct otx2_nic *pfvf = netdev_priv(netdev); 1005 struct cgx_fw_data *rsp; 1006 const int fec[] = { 1007 ETHTOOL_FEC_OFF, 1008 ETHTOOL_FEC_BASER, 1009 ETHTOOL_FEC_RS, 1010 ETHTOOL_FEC_BASER | ETHTOOL_FEC_RS}; 1011 #define FEC_MAX_INDEX 4 1012 if (pfvf->linfo.fec < FEC_MAX_INDEX) 1013 fecparam->active_fec = fec[pfvf->linfo.fec]; 1014 1015 rsp = otx2_get_fwdata(pfvf); 1016 if (IS_ERR(rsp)) 1017 return PTR_ERR(rsp); 1018 1019 if (rsp->fwdata.supported_fec < FEC_MAX_INDEX) { 1020 if (!rsp->fwdata.supported_fec) 1021 fecparam->fec = ETHTOOL_FEC_NONE; 1022 else 1023 fecparam->fec = fec[rsp->fwdata.supported_fec]; 1024 } 1025 return 0; 1026 } 1027 1028 static int otx2_set_fecparam(struct net_device *netdev, 1029 struct ethtool_fecparam *fecparam) 1030 { 1031 struct otx2_nic *pfvf = netdev_priv(netdev); 1032 struct mbox *mbox = &pfvf->mbox; 1033 struct fec_mode *req, *rsp; 1034 int err = 0, fec = 0; 1035 1036 switch (fecparam->fec) { 1037 /* Firmware does not support AUTO mode consider it as FEC_OFF */ 1038 case ETHTOOL_FEC_OFF: 1039 case ETHTOOL_FEC_AUTO: 1040 fec = OTX2_FEC_OFF; 1041 break; 1042 case ETHTOOL_FEC_RS: 1043 fec = OTX2_FEC_RS; 1044 break; 1045 case ETHTOOL_FEC_BASER: 1046 fec = OTX2_FEC_BASER; 1047 break; 1048 default: 1049 netdev_warn(pfvf->netdev, "Unsupported FEC mode: %d", 1050 fecparam->fec); 1051 return -EINVAL; 1052 } 1053 1054 if (fec == pfvf->linfo.fec) 1055 return 0; 1056 1057 mutex_lock(&mbox->lock); 1058 req = otx2_mbox_alloc_msg_cgx_set_fec_param(&pfvf->mbox); 1059 if (!req) { 1060 err = -ENOMEM; 1061 goto end; 1062 } 1063 req->fec = fec; 1064 err = otx2_sync_mbox_msg(&pfvf->mbox); 1065 if (err) 1066 goto end; 1067 1068 rsp = (struct fec_mode *)otx2_mbox_get_rsp(&pfvf->mbox.mbox, 1069 0, &req->hdr); 1070 if (rsp->fec >= 0) 1071 pfvf->linfo.fec = rsp->fec; 1072 else 1073 err = rsp->fec; 1074 end: 1075 mutex_unlock(&mbox->lock); 1076 return err; 1077 } 1078 1079 static void otx2_get_fec_info(u64 index, int req_mode, 1080 struct ethtool_link_ksettings *link_ksettings) 1081 { 1082 __ETHTOOL_DECLARE_LINK_MODE_MASK(otx2_fec_modes) = { 0, }; 1083 1084 switch (index) { 1085 case OTX2_FEC_NONE: 1086 linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_NONE_BIT, 1087 otx2_fec_modes); 1088 break; 1089 case OTX2_FEC_BASER: 1090 linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_BASER_BIT, 1091 otx2_fec_modes); 1092 break; 1093 case OTX2_FEC_RS: 1094 linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_RS_BIT, 1095 otx2_fec_modes); 1096 break; 1097 case OTX2_FEC_BASER | OTX2_FEC_RS: 1098 linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_BASER_BIT, 1099 otx2_fec_modes); 1100 linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_RS_BIT, 1101 otx2_fec_modes); 1102 break; 1103 } 1104 1105 /* Add fec modes to existing modes */ 1106 if (req_mode == OTX2_MODE_ADVERTISED) 1107 linkmode_or(link_ksettings->link_modes.advertising, 1108 link_ksettings->link_modes.advertising, 1109 otx2_fec_modes); 1110 else 1111 linkmode_or(link_ksettings->link_modes.supported, 1112 link_ksettings->link_modes.supported, 1113 otx2_fec_modes); 1114 } 1115 1116 static void otx2_get_link_mode_info(u64 link_mode_bmap, 1117 bool req_mode, 1118 struct ethtool_link_ksettings 1119 *link_ksettings) 1120 { 1121 __ETHTOOL_DECLARE_LINK_MODE_MASK(otx2_link_modes) = { 0, }; 1122 const int otx2_sgmii_features[6] = { 1123 ETHTOOL_LINK_MODE_10baseT_Half_BIT, 1124 ETHTOOL_LINK_MODE_10baseT_Full_BIT, 1125 ETHTOOL_LINK_MODE_100baseT_Half_BIT, 1126 ETHTOOL_LINK_MODE_100baseT_Full_BIT, 1127 ETHTOOL_LINK_MODE_1000baseT_Half_BIT, 1128 ETHTOOL_LINK_MODE_1000baseT_Full_BIT, 1129 }; 1130 /* CGX link modes to Ethtool link mode mapping */ 1131 const int cgx_link_mode[27] = { 1132 0, /* SGMII Mode */ 1133 ETHTOOL_LINK_MODE_1000baseX_Full_BIT, 1134 ETHTOOL_LINK_MODE_10000baseT_Full_BIT, 1135 ETHTOOL_LINK_MODE_10000baseSR_Full_BIT, 1136 ETHTOOL_LINK_MODE_10000baseLR_Full_BIT, 1137 ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, 1138 0, 1139 ETHTOOL_LINK_MODE_25000baseSR_Full_BIT, 1140 0, 1141 0, 1142 ETHTOOL_LINK_MODE_25000baseCR_Full_BIT, 1143 ETHTOOL_LINK_MODE_25000baseKR_Full_BIT, 1144 ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT, 1145 ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT, 1146 ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT, 1147 ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT, 1148 0, 1149 ETHTOOL_LINK_MODE_50000baseSR_Full_BIT, 1150 0, 1151 ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT, 1152 ETHTOOL_LINK_MODE_50000baseCR_Full_BIT, 1153 ETHTOOL_LINK_MODE_50000baseKR_Full_BIT, 1154 0, 1155 ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT, 1156 ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT, 1157 ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT, 1158 ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT 1159 }; 1160 u8 bit; 1161 1162 for_each_set_bit(bit, (unsigned long *)&link_mode_bmap, 27) { 1163 /* SGMII mode is set */ 1164 if (bit == 0) 1165 linkmode_set_bit_array(otx2_sgmii_features, 1166 ARRAY_SIZE(otx2_sgmii_features), 1167 otx2_link_modes); 1168 else 1169 linkmode_set_bit(cgx_link_mode[bit], otx2_link_modes); 1170 } 1171 1172 if (req_mode == OTX2_MODE_ADVERTISED) 1173 linkmode_copy(link_ksettings->link_modes.advertising, 1174 otx2_link_modes); 1175 else 1176 linkmode_copy(link_ksettings->link_modes.supported, 1177 otx2_link_modes); 1178 } 1179 1180 static int otx2_get_link_ksettings(struct net_device *netdev, 1181 struct ethtool_link_ksettings *cmd) 1182 { 1183 struct otx2_nic *pfvf = netdev_priv(netdev); 1184 struct cgx_fw_data *rsp = NULL; 1185 1186 cmd->base.duplex = pfvf->linfo.full_duplex; 1187 cmd->base.speed = pfvf->linfo.speed; 1188 cmd->base.autoneg = pfvf->linfo.an; 1189 1190 rsp = otx2_get_fwdata(pfvf); 1191 if (IS_ERR(rsp)) 1192 return PTR_ERR(rsp); 1193 1194 if (rsp->fwdata.supported_an) 1195 ethtool_link_ksettings_add_link_mode(cmd, 1196 supported, 1197 Autoneg); 1198 1199 otx2_get_link_mode_info(rsp->fwdata.advertised_link_modes, 1200 OTX2_MODE_ADVERTISED, cmd); 1201 otx2_get_fec_info(rsp->fwdata.advertised_fec, 1202 OTX2_MODE_ADVERTISED, cmd); 1203 otx2_get_link_mode_info(rsp->fwdata.supported_link_modes, 1204 OTX2_MODE_SUPPORTED, cmd); 1205 otx2_get_fec_info(rsp->fwdata.supported_fec, 1206 OTX2_MODE_SUPPORTED, cmd); 1207 return 0; 1208 } 1209 1210 static void otx2_get_advertised_mode(const struct ethtool_link_ksettings *cmd, 1211 u64 *mode) 1212 { 1213 u32 bit_pos; 1214 1215 /* Firmware does not support requesting multiple advertised modes 1216 * return first set bit 1217 */ 1218 bit_pos = find_first_bit(cmd->link_modes.advertising, 1219 __ETHTOOL_LINK_MODE_MASK_NBITS); 1220 if (bit_pos != __ETHTOOL_LINK_MODE_MASK_NBITS) 1221 *mode = bit_pos; 1222 } 1223 1224 static int otx2_set_link_ksettings(struct net_device *netdev, 1225 const struct ethtool_link_ksettings *cmd) 1226 { 1227 struct otx2_nic *pf = netdev_priv(netdev); 1228 struct ethtool_link_ksettings cur_ks; 1229 struct cgx_set_link_mode_req *req; 1230 struct mbox *mbox = &pf->mbox; 1231 int err = 0; 1232 1233 memset(&cur_ks, 0, sizeof(struct ethtool_link_ksettings)); 1234 1235 if (!ethtool_validate_speed(cmd->base.speed) || 1236 !ethtool_validate_duplex(cmd->base.duplex)) 1237 return -EINVAL; 1238 1239 if (cmd->base.autoneg != AUTONEG_ENABLE && 1240 cmd->base.autoneg != AUTONEG_DISABLE) 1241 return -EINVAL; 1242 1243 otx2_get_link_ksettings(netdev, &cur_ks); 1244 1245 /* Check requested modes against supported modes by hardware */ 1246 if (!linkmode_subset(cmd->link_modes.advertising, 1247 cur_ks.link_modes.supported)) 1248 return -EINVAL; 1249 1250 mutex_lock(&mbox->lock); 1251 req = otx2_mbox_alloc_msg_cgx_set_link_mode(&pf->mbox); 1252 if (!req) { 1253 err = -ENOMEM; 1254 goto end; 1255 } 1256 1257 req->args.speed = cmd->base.speed; 1258 /* firmware expects 1 for half duplex and 0 for full duplex 1259 * hence inverting 1260 */ 1261 req->args.duplex = cmd->base.duplex ^ 0x1; 1262 req->args.an = cmd->base.autoneg; 1263 otx2_get_advertised_mode(cmd, &req->args.mode); 1264 1265 err = otx2_sync_mbox_msg(&pf->mbox); 1266 end: 1267 mutex_unlock(&mbox->lock); 1268 return err; 1269 } 1270 1271 static void otx2_get_fec_stats(struct net_device *netdev, 1272 struct ethtool_fec_stats *fec_stats) 1273 { 1274 struct otx2_nic *pfvf = netdev_priv(netdev); 1275 struct cgx_fw_data *rsp; 1276 1277 otx2_update_lmac_fec_stats(pfvf); 1278 1279 /* Report MAC FEC stats */ 1280 fec_stats->corrected_blocks.total = pfvf->hw.cgx_fec_corr_blks; 1281 fec_stats->uncorrectable_blocks.total = pfvf->hw.cgx_fec_uncorr_blks; 1282 1283 rsp = otx2_get_fwdata(pfvf); 1284 if (!IS_ERR(rsp) && rsp->fwdata.phy.misc.has_fec_stats && 1285 !otx2_get_phy_fec_stats(pfvf)) { 1286 /* Fetch fwdata again because it's been recently populated with 1287 * latest PHY FEC stats. 1288 */ 1289 rsp = otx2_get_fwdata(pfvf); 1290 if (!IS_ERR(rsp)) { 1291 struct fec_stats_s *p = &rsp->fwdata.phy.fec_stats; 1292 1293 if (pfvf->linfo.fec == OTX2_FEC_BASER) { 1294 fec_stats->corrected_blocks.total = p->brfec_corr_blks; 1295 fec_stats->uncorrectable_blocks.total = p->brfec_uncorr_blks; 1296 } else { 1297 fec_stats->corrected_blocks.total = p->rsfec_corr_cws; 1298 fec_stats->uncorrectable_blocks.total = p->rsfec_uncorr_cws; 1299 } 1300 } 1301 } 1302 } 1303 1304 static const struct ethtool_ops otx2_ethtool_ops = { 1305 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 1306 ETHTOOL_COALESCE_MAX_FRAMES | 1307 ETHTOOL_COALESCE_USE_ADAPTIVE, 1308 .supported_ring_params = ETHTOOL_RING_USE_RX_BUF_LEN | 1309 ETHTOOL_RING_USE_CQE_SIZE, 1310 .get_link = otx2_get_link, 1311 .get_drvinfo = otx2_get_drvinfo, 1312 .get_strings = otx2_get_strings, 1313 .get_ethtool_stats = otx2_get_ethtool_stats, 1314 .get_sset_count = otx2_get_sset_count, 1315 .set_channels = otx2_set_channels, 1316 .get_channels = otx2_get_channels, 1317 .get_ringparam = otx2_get_ringparam, 1318 .set_ringparam = otx2_set_ringparam, 1319 .get_coalesce = otx2_get_coalesce, 1320 .set_coalesce = otx2_set_coalesce, 1321 .get_rxnfc = otx2_get_rxnfc, 1322 .set_rxnfc = otx2_set_rxnfc, 1323 .get_rxfh_key_size = otx2_get_rxfh_key_size, 1324 .get_rxfh_indir_size = otx2_get_rxfh_indir_size, 1325 .get_rxfh = otx2_get_rxfh, 1326 .set_rxfh = otx2_set_rxfh, 1327 .get_rxfh_context = otx2_get_rxfh_context, 1328 .set_rxfh_context = otx2_set_rxfh_context, 1329 .get_msglevel = otx2_get_msglevel, 1330 .set_msglevel = otx2_set_msglevel, 1331 .get_pauseparam = otx2_get_pauseparam, 1332 .set_pauseparam = otx2_set_pauseparam, 1333 .get_ts_info = otx2_get_ts_info, 1334 .get_fec_stats = otx2_get_fec_stats, 1335 .get_fecparam = otx2_get_fecparam, 1336 .set_fecparam = otx2_set_fecparam, 1337 .get_link_ksettings = otx2_get_link_ksettings, 1338 .set_link_ksettings = otx2_set_link_ksettings, 1339 }; 1340 1341 void otx2_set_ethtool_ops(struct net_device *netdev) 1342 { 1343 netdev->ethtool_ops = &otx2_ethtool_ops; 1344 } 1345 1346 /* VF's ethtool APIs */ 1347 static void otx2vf_get_drvinfo(struct net_device *netdev, 1348 struct ethtool_drvinfo *info) 1349 { 1350 struct otx2_nic *vf = netdev_priv(netdev); 1351 1352 strscpy(info->driver, DRV_VF_NAME, sizeof(info->driver)); 1353 strscpy(info->bus_info, pci_name(vf->pdev), sizeof(info->bus_info)); 1354 } 1355 1356 static void otx2vf_get_strings(struct net_device *netdev, u32 sset, u8 *data) 1357 { 1358 struct otx2_nic *vf = netdev_priv(netdev); 1359 int stats; 1360 1361 if (sset != ETH_SS_STATS) 1362 return; 1363 1364 for (stats = 0; stats < otx2_n_dev_stats; stats++) { 1365 memcpy(data, otx2_dev_stats[stats].name, ETH_GSTRING_LEN); 1366 data += ETH_GSTRING_LEN; 1367 } 1368 1369 for (stats = 0; stats < otx2_n_drv_stats; stats++) { 1370 memcpy(data, otx2_drv_stats[stats].name, ETH_GSTRING_LEN); 1371 data += ETH_GSTRING_LEN; 1372 } 1373 1374 otx2_get_qset_strings(vf, &data, 0); 1375 1376 strcpy(data, "reset_count"); 1377 data += ETH_GSTRING_LEN; 1378 } 1379 1380 static void otx2vf_get_ethtool_stats(struct net_device *netdev, 1381 struct ethtool_stats *stats, u64 *data) 1382 { 1383 struct otx2_nic *vf = netdev_priv(netdev); 1384 int stat; 1385 1386 otx2_get_dev_stats(vf); 1387 for (stat = 0; stat < otx2_n_dev_stats; stat++) 1388 *(data++) = ((u64 *)&vf->hw.dev_stats) 1389 [otx2_dev_stats[stat].index]; 1390 1391 for (stat = 0; stat < otx2_n_drv_stats; stat++) 1392 *(data++) = atomic_read(&((atomic_t *)&vf->hw.drv_stats) 1393 [otx2_drv_stats[stat].index]); 1394 1395 otx2_get_qset_stats(vf, stats, &data); 1396 *(data++) = vf->reset_count; 1397 } 1398 1399 static int otx2vf_get_sset_count(struct net_device *netdev, int sset) 1400 { 1401 struct otx2_nic *vf = netdev_priv(netdev); 1402 int qstats_count; 1403 1404 if (sset != ETH_SS_STATS) 1405 return -EINVAL; 1406 1407 qstats_count = otx2_n_queue_stats * 1408 (vf->hw.rx_queues + vf->hw.tx_queues); 1409 1410 return otx2_n_dev_stats + otx2_n_drv_stats + qstats_count + 1; 1411 } 1412 1413 static int otx2vf_get_link_ksettings(struct net_device *netdev, 1414 struct ethtool_link_ksettings *cmd) 1415 { 1416 struct otx2_nic *pfvf = netdev_priv(netdev); 1417 1418 if (is_otx2_lbkvf(pfvf->pdev)) { 1419 cmd->base.duplex = DUPLEX_FULL; 1420 cmd->base.speed = SPEED_100000; 1421 } else { 1422 return otx2_get_link_ksettings(netdev, cmd); 1423 } 1424 return 0; 1425 } 1426 1427 static const struct ethtool_ops otx2vf_ethtool_ops = { 1428 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 1429 ETHTOOL_COALESCE_MAX_FRAMES | 1430 ETHTOOL_COALESCE_USE_ADAPTIVE, 1431 .supported_ring_params = ETHTOOL_RING_USE_RX_BUF_LEN | 1432 ETHTOOL_RING_USE_CQE_SIZE, 1433 .get_link = otx2_get_link, 1434 .get_drvinfo = otx2vf_get_drvinfo, 1435 .get_strings = otx2vf_get_strings, 1436 .get_ethtool_stats = otx2vf_get_ethtool_stats, 1437 .get_sset_count = otx2vf_get_sset_count, 1438 .set_channels = otx2_set_channels, 1439 .get_channels = otx2_get_channels, 1440 .get_rxnfc = otx2_get_rxnfc, 1441 .set_rxnfc = otx2_set_rxnfc, 1442 .get_rxfh_key_size = otx2_get_rxfh_key_size, 1443 .get_rxfh_indir_size = otx2_get_rxfh_indir_size, 1444 .get_rxfh = otx2_get_rxfh, 1445 .set_rxfh = otx2_set_rxfh, 1446 .get_rxfh_context = otx2_get_rxfh_context, 1447 .set_rxfh_context = otx2_set_rxfh_context, 1448 .get_ringparam = otx2_get_ringparam, 1449 .set_ringparam = otx2_set_ringparam, 1450 .get_coalesce = otx2_get_coalesce, 1451 .set_coalesce = otx2_set_coalesce, 1452 .get_msglevel = otx2_get_msglevel, 1453 .set_msglevel = otx2_set_msglevel, 1454 .get_pauseparam = otx2_get_pauseparam, 1455 .set_pauseparam = otx2_set_pauseparam, 1456 .get_link_ksettings = otx2vf_get_link_ksettings, 1457 .get_ts_info = otx2_get_ts_info, 1458 }; 1459 1460 void otx2vf_set_ethtool_ops(struct net_device *netdev) 1461 { 1462 netdev->ethtool_ops = &otx2vf_ethtool_ops; 1463 } 1464 EXPORT_SYMBOL(otx2vf_set_ethtool_ops); 1465