1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright(c) 2017 - 2019 Pensando Systems, Inc */ 3 4 #include <linux/module.h> 5 #include <linux/netdevice.h> 6 #include <linux/sfp.h> 7 8 #include "ionic.h" 9 #include "ionic_bus.h" 10 #include "ionic_lif.h" 11 #include "ionic_ethtool.h" 12 #include "ionic_stats.h" 13 14 static const char ionic_priv_flags_strings[][ETH_GSTRING_LEN] = { 15 #define IONIC_PRIV_F_SW_DBG_STATS BIT(0) 16 "sw-dbg-stats", 17 }; 18 19 #define IONIC_PRIV_FLAGS_COUNT ARRAY_SIZE(ionic_priv_flags_strings) 20 21 static void ionic_get_stats_strings(struct ionic_lif *lif, u8 *buf) 22 { 23 u32 i; 24 25 for (i = 0; i < ionic_num_stats_grps; i++) 26 ionic_stats_groups[i].get_strings(lif, &buf); 27 } 28 29 static void ionic_get_stats(struct net_device *netdev, 30 struct ethtool_stats *stats, u64 *buf) 31 { 32 struct ionic_lif *lif; 33 u32 i; 34 35 lif = netdev_priv(netdev); 36 37 memset(buf, 0, stats->n_stats * sizeof(*buf)); 38 for (i = 0; i < ionic_num_stats_grps; i++) 39 ionic_stats_groups[i].get_values(lif, &buf); 40 } 41 42 static int ionic_get_stats_count(struct ionic_lif *lif) 43 { 44 int i, num_stats = 0; 45 46 for (i = 0; i < ionic_num_stats_grps; i++) 47 num_stats += ionic_stats_groups[i].get_count(lif); 48 49 return num_stats; 50 } 51 52 static int ionic_get_sset_count(struct net_device *netdev, int sset) 53 { 54 struct ionic_lif *lif = netdev_priv(netdev); 55 int count = 0; 56 57 switch (sset) { 58 case ETH_SS_STATS: 59 count = ionic_get_stats_count(lif); 60 break; 61 case ETH_SS_PRIV_FLAGS: 62 count = IONIC_PRIV_FLAGS_COUNT; 63 break; 64 } 65 return count; 66 } 67 68 static void ionic_get_strings(struct net_device *netdev, 69 u32 sset, u8 *buf) 70 { 71 struct ionic_lif *lif = netdev_priv(netdev); 72 73 switch (sset) { 74 case ETH_SS_STATS: 75 ionic_get_stats_strings(lif, buf); 76 break; 77 case ETH_SS_PRIV_FLAGS: 78 memcpy(buf, ionic_priv_flags_strings, 79 IONIC_PRIV_FLAGS_COUNT * ETH_GSTRING_LEN); 80 break; 81 } 82 } 83 84 static void ionic_get_drvinfo(struct net_device *netdev, 85 struct ethtool_drvinfo *drvinfo) 86 { 87 struct ionic_lif *lif = netdev_priv(netdev); 88 struct ionic *ionic = lif->ionic; 89 90 strlcpy(drvinfo->driver, IONIC_DRV_NAME, sizeof(drvinfo->driver)); 91 strlcpy(drvinfo->fw_version, ionic->idev.dev_info.fw_version, 92 sizeof(drvinfo->fw_version)); 93 strlcpy(drvinfo->bus_info, ionic_bus_info(ionic), 94 sizeof(drvinfo->bus_info)); 95 } 96 97 static int ionic_get_regs_len(struct net_device *netdev) 98 { 99 return (IONIC_DEV_INFO_REG_COUNT + IONIC_DEV_CMD_REG_COUNT) * sizeof(u32); 100 } 101 102 static void ionic_get_regs(struct net_device *netdev, struct ethtool_regs *regs, 103 void *p) 104 { 105 struct ionic_lif *lif = netdev_priv(netdev); 106 unsigned int size; 107 108 regs->version = IONIC_DEV_CMD_REG_VERSION; 109 110 size = IONIC_DEV_INFO_REG_COUNT * sizeof(u32); 111 memcpy_fromio(p, lif->ionic->idev.dev_info_regs->words, size); 112 113 size = IONIC_DEV_CMD_REG_COUNT * sizeof(u32); 114 memcpy_fromio(p, lif->ionic->idev.dev_cmd_regs->words, size); 115 } 116 117 static int ionic_get_link_ksettings(struct net_device *netdev, 118 struct ethtool_link_ksettings *ks) 119 { 120 struct ionic_lif *lif = netdev_priv(netdev); 121 struct ionic_dev *idev = &lif->ionic->idev; 122 int copper_seen = 0; 123 124 ethtool_link_ksettings_zero_link_mode(ks, supported); 125 126 /* The port_info data is found in a DMA space that the NIC keeps 127 * up-to-date, so there's no need to request the data from the 128 * NIC, we already have it in our memory space. 129 */ 130 131 switch (le16_to_cpu(idev->port_info->status.xcvr.pid)) { 132 /* Copper */ 133 case IONIC_XCVR_PID_QSFP_100G_CR4: 134 ethtool_link_ksettings_add_link_mode(ks, supported, 135 100000baseCR4_Full); 136 copper_seen++; 137 break; 138 case IONIC_XCVR_PID_QSFP_40GBASE_CR4: 139 ethtool_link_ksettings_add_link_mode(ks, supported, 140 40000baseCR4_Full); 141 copper_seen++; 142 break; 143 case IONIC_XCVR_PID_SFP_25GBASE_CR_S: 144 case IONIC_XCVR_PID_SFP_25GBASE_CR_L: 145 case IONIC_XCVR_PID_SFP_25GBASE_CR_N: 146 ethtool_link_ksettings_add_link_mode(ks, supported, 147 25000baseCR_Full); 148 copper_seen++; 149 break; 150 case IONIC_XCVR_PID_SFP_10GBASE_AOC: 151 case IONIC_XCVR_PID_SFP_10GBASE_CU: 152 ethtool_link_ksettings_add_link_mode(ks, supported, 153 10000baseCR_Full); 154 copper_seen++; 155 break; 156 157 /* Fibre */ 158 case IONIC_XCVR_PID_QSFP_100G_SR4: 159 case IONIC_XCVR_PID_QSFP_100G_AOC: 160 ethtool_link_ksettings_add_link_mode(ks, supported, 161 100000baseSR4_Full); 162 break; 163 case IONIC_XCVR_PID_QSFP_100G_CWDM4: 164 case IONIC_XCVR_PID_QSFP_100G_PSM4: 165 case IONIC_XCVR_PID_QSFP_100G_LR4: 166 ethtool_link_ksettings_add_link_mode(ks, supported, 167 100000baseLR4_ER4_Full); 168 break; 169 case IONIC_XCVR_PID_QSFP_100G_ER4: 170 ethtool_link_ksettings_add_link_mode(ks, supported, 171 100000baseLR4_ER4_Full); 172 break; 173 case IONIC_XCVR_PID_QSFP_40GBASE_SR4: 174 case IONIC_XCVR_PID_QSFP_40GBASE_AOC: 175 ethtool_link_ksettings_add_link_mode(ks, supported, 176 40000baseSR4_Full); 177 break; 178 case IONIC_XCVR_PID_QSFP_40GBASE_LR4: 179 ethtool_link_ksettings_add_link_mode(ks, supported, 180 40000baseLR4_Full); 181 break; 182 case IONIC_XCVR_PID_SFP_25GBASE_SR: 183 case IONIC_XCVR_PID_SFP_25GBASE_AOC: 184 case IONIC_XCVR_PID_SFP_25GBASE_ACC: 185 ethtool_link_ksettings_add_link_mode(ks, supported, 186 25000baseSR_Full); 187 break; 188 case IONIC_XCVR_PID_SFP_10GBASE_SR: 189 ethtool_link_ksettings_add_link_mode(ks, supported, 190 10000baseSR_Full); 191 break; 192 case IONIC_XCVR_PID_SFP_10GBASE_LR: 193 ethtool_link_ksettings_add_link_mode(ks, supported, 194 10000baseLR_Full); 195 break; 196 case IONIC_XCVR_PID_SFP_10GBASE_LRM: 197 ethtool_link_ksettings_add_link_mode(ks, supported, 198 10000baseLRM_Full); 199 break; 200 case IONIC_XCVR_PID_SFP_10GBASE_ER: 201 ethtool_link_ksettings_add_link_mode(ks, supported, 202 10000baseER_Full); 203 break; 204 case IONIC_XCVR_PID_UNKNOWN: 205 /* This means there's no module plugged in */ 206 break; 207 default: 208 dev_info(lif->ionic->dev, "unknown xcvr type pid=%d / 0x%x\n", 209 idev->port_info->status.xcvr.pid, 210 idev->port_info->status.xcvr.pid); 211 break; 212 } 213 214 bitmap_copy(ks->link_modes.advertising, ks->link_modes.supported, 215 __ETHTOOL_LINK_MODE_MASK_NBITS); 216 217 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 218 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 219 if (idev->port_info->config.fec_type == IONIC_PORT_FEC_TYPE_FC) 220 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_BASER); 221 else if (idev->port_info->config.fec_type == IONIC_PORT_FEC_TYPE_RS) 222 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 223 224 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 225 ethtool_link_ksettings_add_link_mode(ks, supported, Pause); 226 227 if (idev->port_info->status.xcvr.phy == IONIC_PHY_TYPE_COPPER || 228 copper_seen) 229 ks->base.port = PORT_DA; 230 else if (idev->port_info->status.xcvr.phy == IONIC_PHY_TYPE_FIBER) 231 ks->base.port = PORT_FIBRE; 232 else 233 ks->base.port = PORT_NONE; 234 235 if (ks->base.port != PORT_NONE) { 236 ks->base.speed = le32_to_cpu(lif->info->status.link_speed); 237 238 if (le16_to_cpu(lif->info->status.link_status)) 239 ks->base.duplex = DUPLEX_FULL; 240 else 241 ks->base.duplex = DUPLEX_UNKNOWN; 242 243 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 244 245 if (idev->port_info->config.an_enable) { 246 ethtool_link_ksettings_add_link_mode(ks, advertising, 247 Autoneg); 248 ks->base.autoneg = AUTONEG_ENABLE; 249 } 250 } 251 252 return 0; 253 } 254 255 static int ionic_set_link_ksettings(struct net_device *netdev, 256 const struct ethtool_link_ksettings *ks) 257 { 258 struct ionic_lif *lif = netdev_priv(netdev); 259 struct ionic *ionic = lif->ionic; 260 struct ionic_dev *idev; 261 int err = 0; 262 263 idev = &lif->ionic->idev; 264 265 /* set autoneg */ 266 if (ks->base.autoneg != idev->port_info->config.an_enable) { 267 mutex_lock(&ionic->dev_cmd_lock); 268 ionic_dev_cmd_port_autoneg(idev, ks->base.autoneg); 269 err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT); 270 mutex_unlock(&ionic->dev_cmd_lock); 271 if (err) 272 return err; 273 } 274 275 /* set speed */ 276 if (ks->base.speed != le32_to_cpu(idev->port_info->config.speed)) { 277 mutex_lock(&ionic->dev_cmd_lock); 278 ionic_dev_cmd_port_speed(idev, ks->base.speed); 279 err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT); 280 mutex_unlock(&ionic->dev_cmd_lock); 281 if (err) 282 return err; 283 } 284 285 return 0; 286 } 287 288 static void ionic_get_pauseparam(struct net_device *netdev, 289 struct ethtool_pauseparam *pause) 290 { 291 struct ionic_lif *lif = netdev_priv(netdev); 292 u8 pause_type; 293 294 pause->autoneg = 0; 295 296 pause_type = lif->ionic->idev.port_info->config.pause_type; 297 if (pause_type) { 298 pause->rx_pause = pause_type & IONIC_PAUSE_F_RX ? 1 : 0; 299 pause->tx_pause = pause_type & IONIC_PAUSE_F_TX ? 1 : 0; 300 } 301 } 302 303 static int ionic_set_pauseparam(struct net_device *netdev, 304 struct ethtool_pauseparam *pause) 305 { 306 struct ionic_lif *lif = netdev_priv(netdev); 307 struct ionic *ionic = lif->ionic; 308 u32 requested_pause; 309 int err; 310 311 if (pause->autoneg) 312 return -EOPNOTSUPP; 313 314 /* change both at the same time */ 315 requested_pause = IONIC_PORT_PAUSE_TYPE_LINK; 316 if (pause->rx_pause) 317 requested_pause |= IONIC_PAUSE_F_RX; 318 if (pause->tx_pause) 319 requested_pause |= IONIC_PAUSE_F_TX; 320 321 if (requested_pause == lif->ionic->idev.port_info->config.pause_type) 322 return 0; 323 324 mutex_lock(&ionic->dev_cmd_lock); 325 ionic_dev_cmd_port_pause(&lif->ionic->idev, requested_pause); 326 err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT); 327 mutex_unlock(&ionic->dev_cmd_lock); 328 if (err) 329 return err; 330 331 return 0; 332 } 333 334 static int ionic_get_fecparam(struct net_device *netdev, 335 struct ethtool_fecparam *fec) 336 { 337 struct ionic_lif *lif = netdev_priv(netdev); 338 339 switch (lif->ionic->idev.port_info->config.fec_type) { 340 case IONIC_PORT_FEC_TYPE_NONE: 341 fec->active_fec = ETHTOOL_FEC_OFF; 342 break; 343 case IONIC_PORT_FEC_TYPE_RS: 344 fec->active_fec = ETHTOOL_FEC_RS; 345 break; 346 case IONIC_PORT_FEC_TYPE_FC: 347 fec->active_fec = ETHTOOL_FEC_BASER; 348 break; 349 } 350 351 fec->fec = ETHTOOL_FEC_OFF | ETHTOOL_FEC_RS | ETHTOOL_FEC_BASER; 352 353 return 0; 354 } 355 356 static int ionic_set_fecparam(struct net_device *netdev, 357 struct ethtool_fecparam *fec) 358 { 359 struct ionic_lif *lif = netdev_priv(netdev); 360 u8 fec_type; 361 int ret = 0; 362 363 if (lif->ionic->idev.port_info->config.an_enable) { 364 netdev_err(netdev, "FEC request not allowed while autoneg is enabled\n"); 365 return -EINVAL; 366 } 367 368 switch (fec->fec) { 369 case ETHTOOL_FEC_NONE: 370 fec_type = IONIC_PORT_FEC_TYPE_NONE; 371 break; 372 case ETHTOOL_FEC_OFF: 373 fec_type = IONIC_PORT_FEC_TYPE_NONE; 374 break; 375 case ETHTOOL_FEC_RS: 376 fec_type = IONIC_PORT_FEC_TYPE_RS; 377 break; 378 case ETHTOOL_FEC_BASER: 379 fec_type = IONIC_PORT_FEC_TYPE_FC; 380 break; 381 case ETHTOOL_FEC_AUTO: 382 default: 383 netdev_err(netdev, "FEC request 0x%04x not supported\n", 384 fec->fec); 385 return -EINVAL; 386 } 387 388 if (fec_type != lif->ionic->idev.port_info->config.fec_type) { 389 mutex_lock(&lif->ionic->dev_cmd_lock); 390 ionic_dev_cmd_port_fec(&lif->ionic->idev, fec_type); 391 ret = ionic_dev_cmd_wait(lif->ionic, DEVCMD_TIMEOUT); 392 mutex_unlock(&lif->ionic->dev_cmd_lock); 393 } 394 395 return ret; 396 } 397 398 static int ionic_get_coalesce(struct net_device *netdev, 399 struct ethtool_coalesce *coalesce) 400 { 401 struct ionic_lif *lif = netdev_priv(netdev); 402 403 /* Tx uses Rx interrupt */ 404 coalesce->tx_coalesce_usecs = lif->rx_coalesce_usecs; 405 coalesce->rx_coalesce_usecs = lif->rx_coalesce_usecs; 406 407 return 0; 408 } 409 410 static int ionic_set_coalesce(struct net_device *netdev, 411 struct ethtool_coalesce *coalesce) 412 { 413 struct ionic_lif *lif = netdev_priv(netdev); 414 struct ionic_identity *ident; 415 struct ionic_qcq *qcq; 416 unsigned int i; 417 u32 coal; 418 419 ident = &lif->ionic->ident; 420 if (ident->dev.intr_coal_div == 0) { 421 netdev_warn(netdev, "bad HW value in dev.intr_coal_div = %d\n", 422 ident->dev.intr_coal_div); 423 return -EIO; 424 } 425 426 /* Tx uses Rx interrupt, so only change Rx */ 427 if (coalesce->tx_coalesce_usecs != lif->rx_coalesce_usecs) { 428 netdev_warn(netdev, "only the rx-usecs can be changed\n"); 429 return -EINVAL; 430 } 431 432 /* Convert the usec request to a HW useable value. If they asked 433 * for non-zero and it resolved to zero, bump it up 434 */ 435 coal = ionic_coal_usec_to_hw(lif->ionic, coalesce->rx_coalesce_usecs); 436 if (!coal && coalesce->rx_coalesce_usecs) 437 coal = 1; 438 439 if (coal > IONIC_INTR_CTRL_COAL_MAX) 440 return -ERANGE; 441 442 /* Save the new value */ 443 lif->rx_coalesce_usecs = coalesce->rx_coalesce_usecs; 444 if (coal != lif->rx_coalesce_hw) { 445 lif->rx_coalesce_hw = coal; 446 447 if (test_bit(IONIC_LIF_F_UP, lif->state)) { 448 for (i = 0; i < lif->nxqs; i++) { 449 qcq = lif->rxqcqs[i].qcq; 450 ionic_intr_coal_init(lif->ionic->idev.intr_ctrl, 451 qcq->intr.index, 452 lif->rx_coalesce_hw); 453 } 454 } 455 } 456 457 return 0; 458 } 459 460 static void ionic_get_ringparam(struct net_device *netdev, 461 struct ethtool_ringparam *ring) 462 { 463 struct ionic_lif *lif = netdev_priv(netdev); 464 465 ring->tx_max_pending = IONIC_MAX_TX_DESC; 466 ring->tx_pending = lif->ntxq_descs; 467 ring->rx_max_pending = IONIC_MAX_RX_DESC; 468 ring->rx_pending = lif->nrxq_descs; 469 } 470 471 static void ionic_set_ringsize(struct ionic_lif *lif, void *arg) 472 { 473 struct ethtool_ringparam *ring = arg; 474 475 lif->ntxq_descs = ring->tx_pending; 476 lif->nrxq_descs = ring->rx_pending; 477 } 478 479 static int ionic_set_ringparam(struct net_device *netdev, 480 struct ethtool_ringparam *ring) 481 { 482 struct ionic_lif *lif = netdev_priv(netdev); 483 484 if (ring->rx_mini_pending || ring->rx_jumbo_pending) { 485 netdev_info(netdev, "Changing jumbo or mini descriptors not supported\n"); 486 return -EINVAL; 487 } 488 489 if (!is_power_of_2(ring->tx_pending) || 490 !is_power_of_2(ring->rx_pending)) { 491 netdev_info(netdev, "Descriptor count must be a power of 2\n"); 492 return -EINVAL; 493 } 494 495 /* if nothing to do return success */ 496 if (ring->tx_pending == lif->ntxq_descs && 497 ring->rx_pending == lif->nrxq_descs) 498 return 0; 499 500 return ionic_reset_queues(lif, ionic_set_ringsize, ring); 501 } 502 503 static void ionic_get_channels(struct net_device *netdev, 504 struct ethtool_channels *ch) 505 { 506 struct ionic_lif *lif = netdev_priv(netdev); 507 508 /* report maximum channels */ 509 ch->max_combined = lif->ionic->ntxqs_per_lif; 510 511 /* report current channels */ 512 ch->combined_count = lif->nxqs; 513 } 514 515 static void ionic_set_queuecount(struct ionic_lif *lif, void *arg) 516 { 517 struct ethtool_channels *ch = arg; 518 519 lif->nxqs = ch->combined_count; 520 } 521 522 static int ionic_set_channels(struct net_device *netdev, 523 struct ethtool_channels *ch) 524 { 525 struct ionic_lif *lif = netdev_priv(netdev); 526 527 if (!ch->combined_count || ch->other_count || 528 ch->rx_count || ch->tx_count) 529 return -EINVAL; 530 531 if (ch->combined_count == lif->nxqs) 532 return 0; 533 534 return ionic_reset_queues(lif, ionic_set_queuecount, ch); 535 } 536 537 static u32 ionic_get_priv_flags(struct net_device *netdev) 538 { 539 struct ionic_lif *lif = netdev_priv(netdev); 540 u32 priv_flags = 0; 541 542 if (test_bit(IONIC_LIF_F_SW_DEBUG_STATS, lif->state)) 543 priv_flags |= IONIC_PRIV_F_SW_DBG_STATS; 544 545 return priv_flags; 546 } 547 548 static int ionic_set_priv_flags(struct net_device *netdev, u32 priv_flags) 549 { 550 struct ionic_lif *lif = netdev_priv(netdev); 551 552 clear_bit(IONIC_LIF_F_SW_DEBUG_STATS, lif->state); 553 if (priv_flags & IONIC_PRIV_F_SW_DBG_STATS) 554 set_bit(IONIC_LIF_F_SW_DEBUG_STATS, lif->state); 555 556 return 0; 557 } 558 559 static int ionic_get_rxnfc(struct net_device *netdev, 560 struct ethtool_rxnfc *info, u32 *rules) 561 { 562 struct ionic_lif *lif = netdev_priv(netdev); 563 int err = 0; 564 565 switch (info->cmd) { 566 case ETHTOOL_GRXRINGS: 567 info->data = lif->nxqs; 568 break; 569 default: 570 netdev_err(netdev, "Command parameter %d is not supported\n", 571 info->cmd); 572 err = -EOPNOTSUPP; 573 } 574 575 return err; 576 } 577 578 static u32 ionic_get_rxfh_indir_size(struct net_device *netdev) 579 { 580 struct ionic_lif *lif = netdev_priv(netdev); 581 582 return le16_to_cpu(lif->ionic->ident.lif.eth.rss_ind_tbl_sz); 583 } 584 585 static u32 ionic_get_rxfh_key_size(struct net_device *netdev) 586 { 587 return IONIC_RSS_HASH_KEY_SIZE; 588 } 589 590 static int ionic_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 591 u8 *hfunc) 592 { 593 struct ionic_lif *lif = netdev_priv(netdev); 594 unsigned int i, tbl_sz; 595 596 if (indir) { 597 tbl_sz = le16_to_cpu(lif->ionic->ident.lif.eth.rss_ind_tbl_sz); 598 for (i = 0; i < tbl_sz; i++) 599 indir[i] = lif->rss_ind_tbl[i]; 600 } 601 602 if (key) 603 memcpy(key, lif->rss_hash_key, IONIC_RSS_HASH_KEY_SIZE); 604 605 if (hfunc) 606 *hfunc = ETH_RSS_HASH_TOP; 607 608 return 0; 609 } 610 611 static int ionic_set_rxfh(struct net_device *netdev, const u32 *indir, 612 const u8 *key, const u8 hfunc) 613 { 614 struct ionic_lif *lif = netdev_priv(netdev); 615 int err; 616 617 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 618 return -EOPNOTSUPP; 619 620 err = ionic_lif_rss_config(lif, lif->rss_types, key, indir); 621 if (err) 622 return err; 623 624 return 0; 625 } 626 627 static int ionic_set_tunable(struct net_device *dev, 628 const struct ethtool_tunable *tuna, 629 const void *data) 630 { 631 struct ionic_lif *lif = netdev_priv(dev); 632 633 switch (tuna->id) { 634 case ETHTOOL_RX_COPYBREAK: 635 lif->rx_copybreak = *(u32 *)data; 636 break; 637 default: 638 return -EOPNOTSUPP; 639 } 640 641 return 0; 642 } 643 644 static int ionic_get_tunable(struct net_device *netdev, 645 const struct ethtool_tunable *tuna, void *data) 646 { 647 struct ionic_lif *lif = netdev_priv(netdev); 648 649 switch (tuna->id) { 650 case ETHTOOL_RX_COPYBREAK: 651 *(u32 *)data = lif->rx_copybreak; 652 break; 653 default: 654 return -EOPNOTSUPP; 655 } 656 657 return 0; 658 } 659 660 static int ionic_get_module_info(struct net_device *netdev, 661 struct ethtool_modinfo *modinfo) 662 663 { 664 struct ionic_lif *lif = netdev_priv(netdev); 665 struct ionic_dev *idev = &lif->ionic->idev; 666 struct ionic_xcvr_status *xcvr; 667 struct sfp_eeprom_base *sfp; 668 669 xcvr = &idev->port_info->status.xcvr; 670 sfp = (struct sfp_eeprom_base *) xcvr->sprom; 671 672 /* report the module data type and length */ 673 switch (sfp->phys_id) { 674 case SFF8024_ID_SFP: 675 modinfo->type = ETH_MODULE_SFF_8079; 676 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 677 break; 678 case SFF8024_ID_QSFP_8436_8636: 679 case SFF8024_ID_QSFP28_8636: 680 modinfo->type = ETH_MODULE_SFF_8436; 681 modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN; 682 break; 683 default: 684 netdev_info(netdev, "unknown xcvr type 0x%02x\n", 685 xcvr->sprom[0]); 686 modinfo->type = 0; 687 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 688 break; 689 } 690 691 return 0; 692 } 693 694 static int ionic_get_module_eeprom(struct net_device *netdev, 695 struct ethtool_eeprom *ee, 696 u8 *data) 697 { 698 struct ionic_lif *lif = netdev_priv(netdev); 699 struct ionic_dev *idev = &lif->ionic->idev; 700 struct ionic_xcvr_status *xcvr; 701 char tbuf[sizeof(xcvr->sprom)]; 702 int count = 10; 703 u32 len; 704 705 /* The NIC keeps the module prom up-to-date in the DMA space 706 * so we can simply copy the module bytes into the data buffer. 707 */ 708 xcvr = &idev->port_info->status.xcvr; 709 len = min_t(u32, sizeof(xcvr->sprom), ee->len); 710 711 do { 712 memcpy(data, xcvr->sprom, len); 713 memcpy(tbuf, xcvr->sprom, len); 714 715 /* Let's make sure we got a consistent copy */ 716 if (!memcmp(data, tbuf, len)) 717 break; 718 719 } while (--count); 720 721 if (!count) 722 return -ETIMEDOUT; 723 724 return 0; 725 } 726 727 static int ionic_nway_reset(struct net_device *netdev) 728 { 729 struct ionic_lif *lif = netdev_priv(netdev); 730 struct ionic *ionic = lif->ionic; 731 int err = 0; 732 733 /* flap the link to force auto-negotiation */ 734 735 mutex_lock(&ionic->dev_cmd_lock); 736 737 ionic_dev_cmd_port_state(&ionic->idev, IONIC_PORT_ADMIN_STATE_DOWN); 738 err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT); 739 740 if (!err) { 741 ionic_dev_cmd_port_state(&ionic->idev, IONIC_PORT_ADMIN_STATE_UP); 742 err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT); 743 } 744 745 mutex_unlock(&ionic->dev_cmd_lock); 746 747 return err; 748 } 749 750 static const struct ethtool_ops ionic_ethtool_ops = { 751 .supported_coalesce_params = ETHTOOL_COALESCE_USECS, 752 .get_drvinfo = ionic_get_drvinfo, 753 .get_regs_len = ionic_get_regs_len, 754 .get_regs = ionic_get_regs, 755 .get_link = ethtool_op_get_link, 756 .get_link_ksettings = ionic_get_link_ksettings, 757 .set_link_ksettings = ionic_set_link_ksettings, 758 .get_coalesce = ionic_get_coalesce, 759 .set_coalesce = ionic_set_coalesce, 760 .get_ringparam = ionic_get_ringparam, 761 .set_ringparam = ionic_set_ringparam, 762 .get_channels = ionic_get_channels, 763 .set_channels = ionic_set_channels, 764 .get_strings = ionic_get_strings, 765 .get_ethtool_stats = ionic_get_stats, 766 .get_sset_count = ionic_get_sset_count, 767 .get_priv_flags = ionic_get_priv_flags, 768 .set_priv_flags = ionic_set_priv_flags, 769 .get_rxnfc = ionic_get_rxnfc, 770 .get_rxfh_indir_size = ionic_get_rxfh_indir_size, 771 .get_rxfh_key_size = ionic_get_rxfh_key_size, 772 .get_rxfh = ionic_get_rxfh, 773 .set_rxfh = ionic_set_rxfh, 774 .get_tunable = ionic_get_tunable, 775 .set_tunable = ionic_set_tunable, 776 .get_module_info = ionic_get_module_info, 777 .get_module_eeprom = ionic_get_module_eeprom, 778 .get_pauseparam = ionic_get_pauseparam, 779 .set_pauseparam = ionic_set_pauseparam, 780 .get_fecparam = ionic_get_fecparam, 781 .set_fecparam = ionic_set_fecparam, 782 .nway_reset = ionic_nway_reset, 783 }; 784 785 void ionic_ethtool_set_ops(struct net_device *netdev) 786 { 787 netdev->ethtool_ops = &ionic_ethtool_ops; 788 } 789