1/* 2 * AMD 10Gb Ethernet driver 3 * 4 * This file is available to you under your choice of the following two 5 * licenses: 6 * 7 * License 1: GPLv2 8 * 9 * Copyright (c) 2014-2016 Advanced Micro Devices, Inc. 10 * 11 * This file is free software; you may copy, redistribute and/or modify 12 * it under the terms of the GNU General Public License as published by 13 * the Free Software Foundation, either version 2 of the License, or (at 14 * your option) any later version. 15 * 16 * This file is distributed in the hope that it will be useful, but 17 * WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19 * General Public License for more details. 20 * 21 * You should have received a copy of the GNU General Public License 22 * along with this program. If not, see <http://www.gnu.org/licenses/>. 23 * 24 * This file incorporates work covered by the following copyright and 25 * permission notice: 26 * The Synopsys DWC ETHER XGMAC Software Driver and documentation 27 * (hereinafter "Software") is an unsupported proprietary work of Synopsys, 28 * Inc. unless otherwise expressly agreed to in writing between Synopsys 29 * and you. 30 * 31 * The Software IS NOT an item of Licensed Software or Licensed Product 32 * under any End User Software License Agreement or Agreement for Licensed 33 * Product with Synopsys or any supplement thereto. Permission is hereby 34 * granted, free of charge, to any person obtaining a copy of this software 35 * annotated with this license and the Software, to deal in the Software 36 * without restriction, including without limitation the rights to use, 37 * copy, modify, merge, publish, distribute, sublicense, and/or sell copies 38 * of the Software, and to permit persons to whom the Software is furnished 39 * to do so, subject to the following conditions: 40 * 41 * The above copyright notice and this permission notice shall be included 42 * in all copies or substantial portions of the Software. 43 * 44 * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" 45 * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 46 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 47 * PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS 48 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 49 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 50 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 51 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 52 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 53 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 54 * THE POSSIBILITY OF SUCH DAMAGE. 55 * 56 * 57 * License 2: Modified BSD 58 * 59 * Copyright (c) 2014-2016 Advanced Micro Devices, Inc. 60 * All rights reserved. 61 * 62 * Redistribution and use in source and binary forms, with or without 63 * modification, are permitted provided that the following conditions are met: 64 * * Redistributions of source code must retain the above copyright 65 * notice, this list of conditions and the following disclaimer. 66 * * Redistributions in binary form must reproduce the above copyright 67 * notice, this list of conditions and the following disclaimer in the 68 * documentation and/or other materials provided with the distribution. 69 * * Neither the name of Advanced Micro Devices, Inc. nor the 70 * names of its contributors may be used to endorse or promote products 71 * derived from this software without specific prior written permission. 72 * 73 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 74 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 75 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 76 * ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY 77 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 78 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 79 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 80 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 81 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 82 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 83 * 84 * This file incorporates work covered by the following copyright and 85 * permission notice: 86 * The Synopsys DWC ETHER XGMAC Software Driver and documentation 87 * (hereinafter "Software") is an unsupported proprietary work of Synopsys, 88 * Inc. unless otherwise expressly agreed to in writing between Synopsys 89 * and you. 90 * 91 * The Software IS NOT an item of Licensed Software or Licensed Product 92 * under any End User Software License Agreement or Agreement for Licensed 93 * Product with Synopsys or any supplement thereto. Permission is hereby 94 * granted, free of charge, to any person obtaining a copy of this software 95 * annotated with this license and the Software, to deal in the Software 96 * without restriction, including without limitation the rights to use, 97 * copy, modify, merge, publish, distribute, sublicense, and/or sell copies 98 * of the Software, and to permit persons to whom the Software is furnished 99 * to do so, subject to the following conditions: 100 * 101 * The above copyright notice and this permission notice shall be included 102 * in all copies or substantial portions of the Software. 103 * 104 * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" 105 * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 106 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 107 * PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS 108 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 109 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 110 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 111 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 112 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 113 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 114 * THE POSSIBILITY OF SUCH DAMAGE. 115 */ 116 117#include <linux/spinlock.h> 118#include <linux/phy.h> 119#include <linux/net_tstamp.h> 120 121#include "xgbe.h" 122#include "xgbe-common.h" 123 124struct xgbe_stats { 125 char stat_string[ETH_GSTRING_LEN]; 126 int stat_size; 127 int stat_offset; 128}; 129 130#define XGMAC_MMC_STAT(_string, _var) \ 131 { _string, \ 132 sizeof_field(struct xgbe_mmc_stats, _var), \ 133 offsetof(struct xgbe_prv_data, mmc_stats._var), \ 134 } 135 136#define XGMAC_EXT_STAT(_string, _var) \ 137 { _string, \ 138 sizeof_field(struct xgbe_ext_stats, _var), \ 139 offsetof(struct xgbe_prv_data, ext_stats._var), \ 140 } 141 142static const struct xgbe_stats xgbe_gstring_stats[] = { 143 XGMAC_MMC_STAT("tx_bytes", txoctetcount_gb), 144 XGMAC_MMC_STAT("tx_packets", txframecount_gb), 145 XGMAC_MMC_STAT("tx_unicast_packets", txunicastframes_gb), 146 XGMAC_MMC_STAT("tx_broadcast_packets", txbroadcastframes_gb), 147 XGMAC_MMC_STAT("tx_multicast_packets", txmulticastframes_gb), 148 XGMAC_MMC_STAT("tx_vlan_packets", txvlanframes_g), 149 XGMAC_EXT_STAT("tx_vxlan_packets", tx_vxlan_packets), 150 XGMAC_EXT_STAT("tx_tso_packets", tx_tso_packets), 151 XGMAC_MMC_STAT("tx_64_byte_packets", tx64octets_gb), 152 XGMAC_MMC_STAT("tx_65_to_127_byte_packets", tx65to127octets_gb), 153 XGMAC_MMC_STAT("tx_128_to_255_byte_packets", tx128to255octets_gb), 154 XGMAC_MMC_STAT("tx_256_to_511_byte_packets", tx256to511octets_gb), 155 XGMAC_MMC_STAT("tx_512_to_1023_byte_packets", tx512to1023octets_gb), 156 XGMAC_MMC_STAT("tx_1024_to_max_byte_packets", tx1024tomaxoctets_gb), 157 XGMAC_MMC_STAT("tx_underflow_errors", txunderflowerror), 158 XGMAC_MMC_STAT("tx_pause_frames", txpauseframes), 159 160 XGMAC_MMC_STAT("rx_bytes", rxoctetcount_gb), 161 XGMAC_MMC_STAT("rx_packets", rxframecount_gb), 162 XGMAC_MMC_STAT("rx_unicast_packets", rxunicastframes_g), 163 XGMAC_MMC_STAT("rx_broadcast_packets", rxbroadcastframes_g), 164 XGMAC_MMC_STAT("rx_multicast_packets", rxmulticastframes_g), 165 XGMAC_MMC_STAT("rx_vlan_packets", rxvlanframes_gb), 166 XGMAC_EXT_STAT("rx_vxlan_packets", rx_vxlan_packets), 167 XGMAC_MMC_STAT("rx_64_byte_packets", rx64octets_gb), 168 XGMAC_MMC_STAT("rx_65_to_127_byte_packets", rx65to127octets_gb), 169 XGMAC_MMC_STAT("rx_128_to_255_byte_packets", rx128to255octets_gb), 170 XGMAC_MMC_STAT("rx_256_to_511_byte_packets", rx256to511octets_gb), 171 XGMAC_MMC_STAT("rx_512_to_1023_byte_packets", rx512to1023octets_gb), 172 XGMAC_MMC_STAT("rx_1024_to_max_byte_packets", rx1024tomaxoctets_gb), 173 XGMAC_MMC_STAT("rx_undersize_packets", rxundersize_g), 174 XGMAC_MMC_STAT("rx_oversize_packets", rxoversize_g), 175 XGMAC_MMC_STAT("rx_crc_errors", rxcrcerror), 176 XGMAC_MMC_STAT("rx_crc_errors_small_packets", rxrunterror), 177 XGMAC_MMC_STAT("rx_crc_errors_giant_packets", rxjabbererror), 178 XGMAC_MMC_STAT("rx_length_errors", rxlengtherror), 179 XGMAC_MMC_STAT("rx_out_of_range_errors", rxoutofrangetype), 180 XGMAC_MMC_STAT("rx_fifo_overflow_errors", rxfifooverflow), 181 XGMAC_MMC_STAT("rx_watchdog_errors", rxwatchdogerror), 182 XGMAC_EXT_STAT("rx_csum_errors", rx_csum_errors), 183 XGMAC_EXT_STAT("rx_vxlan_csum_errors", rx_vxlan_csum_errors), 184 XGMAC_MMC_STAT("rx_pause_frames", rxpauseframes), 185 XGMAC_EXT_STAT("rx_split_header_packets", rx_split_header_packets), 186 XGMAC_EXT_STAT("rx_buffer_unavailable", rx_buffer_unavailable), 187}; 188 189#define XGBE_STATS_COUNT ARRAY_SIZE(xgbe_gstring_stats) 190 191static void xgbe_get_strings(struct net_device *netdev, u32 stringset, u8 *data) 192{ 193 struct xgbe_prv_data *pdata = netdev_priv(netdev); 194 int i; 195 196 switch (stringset) { 197 case ETH_SS_STATS: 198 for (i = 0; i < XGBE_STATS_COUNT; i++) { 199 memcpy(data, xgbe_gstring_stats[i].stat_string, 200 ETH_GSTRING_LEN); 201 data += ETH_GSTRING_LEN; 202 } 203 for (i = 0; i < pdata->tx_ring_count; i++) { 204 sprintf(data, "txq_%u_packets", i); 205 data += ETH_GSTRING_LEN; 206 sprintf(data, "txq_%u_bytes", i); 207 data += ETH_GSTRING_LEN; 208 } 209 for (i = 0; i < pdata->rx_ring_count; i++) { 210 sprintf(data, "rxq_%u_packets", i); 211 data += ETH_GSTRING_LEN; 212 sprintf(data, "rxq_%u_bytes", i); 213 data += ETH_GSTRING_LEN; 214 } 215 break; 216 } 217} 218 219static void xgbe_get_ethtool_stats(struct net_device *netdev, 220 struct ethtool_stats *stats, u64 *data) 221{ 222 struct xgbe_prv_data *pdata = netdev_priv(netdev); 223 u8 *stat; 224 int i; 225 226 pdata->hw_if.read_mmc_stats(pdata); 227 for (i = 0; i < XGBE_STATS_COUNT; i++) { 228 stat = (u8 *)pdata + xgbe_gstring_stats[i].stat_offset; 229 *data++ = *(u64 *)stat; 230 } 231 for (i = 0; i < pdata->tx_ring_count; i++) { 232 *data++ = pdata->ext_stats.txq_packets[i]; 233 *data++ = pdata->ext_stats.txq_bytes[i]; 234 } 235 for (i = 0; i < pdata->rx_ring_count; i++) { 236 *data++ = pdata->ext_stats.rxq_packets[i]; 237 *data++ = pdata->ext_stats.rxq_bytes[i]; 238 } 239} 240 241static int xgbe_get_sset_count(struct net_device *netdev, int stringset) 242{ 243 struct xgbe_prv_data *pdata = netdev_priv(netdev); 244 int ret; 245 246 switch (stringset) { 247 case ETH_SS_STATS: 248 ret = XGBE_STATS_COUNT + 249 (pdata->tx_ring_count * 2) + 250 (pdata->rx_ring_count * 2); 251 break; 252 253 default: 254 ret = -EOPNOTSUPP; 255 } 256 257 return ret; 258} 259 260static void xgbe_get_pauseparam(struct net_device *netdev, 261 struct ethtool_pauseparam *pause) 262{ 263 struct xgbe_prv_data *pdata = netdev_priv(netdev); 264 265 pause->autoneg = pdata->phy.pause_autoneg; 266 pause->tx_pause = pdata->phy.tx_pause; 267 pause->rx_pause = pdata->phy.rx_pause; 268} 269 270static int xgbe_set_pauseparam(struct net_device *netdev, 271 struct ethtool_pauseparam *pause) 272{ 273 struct xgbe_prv_data *pdata = netdev_priv(netdev); 274 struct ethtool_link_ksettings *lks = &pdata->phy.lks; 275 int ret = 0; 276 277 if (pause->autoneg && (pdata->phy.autoneg != AUTONEG_ENABLE)) { 278 netdev_err(netdev, 279 "autoneg disabled, pause autoneg not available\n"); 280 return -EINVAL; 281 } 282 283 pdata->phy.pause_autoneg = pause->autoneg; 284 pdata->phy.tx_pause = pause->tx_pause; 285 pdata->phy.rx_pause = pause->rx_pause; 286 287 XGBE_CLR_ADV(lks, Pause); 288 XGBE_CLR_ADV(lks, Asym_Pause); 289 290 if (pause->rx_pause) { 291 XGBE_SET_ADV(lks, Pause); 292 XGBE_SET_ADV(lks, Asym_Pause); 293 } 294 295 if (pause->tx_pause) { 296 /* Equivalent to XOR of Asym_Pause */ 297 if (XGBE_ADV(lks, Asym_Pause)) 298 XGBE_CLR_ADV(lks, Asym_Pause); 299 else 300 XGBE_SET_ADV(lks, Asym_Pause); 301 } 302 303 if (netif_running(netdev)) 304 ret = pdata->phy_if.phy_config_aneg(pdata); 305 306 return ret; 307} 308 309static int xgbe_get_link_ksettings(struct net_device *netdev, 310 struct ethtool_link_ksettings *cmd) 311{ 312 struct xgbe_prv_data *pdata = netdev_priv(netdev); 313 struct ethtool_link_ksettings *lks = &pdata->phy.lks; 314 315 cmd->base.phy_address = pdata->phy.address; 316 317 if (netif_carrier_ok(netdev)) { 318 cmd->base.speed = pdata->phy.speed; 319 cmd->base.duplex = pdata->phy.duplex; 320 } else { 321 cmd->base.speed = SPEED_UNKNOWN; 322 cmd->base.duplex = DUPLEX_UNKNOWN; 323 } 324 325 cmd->base.autoneg = pdata->phy.autoneg; 326 cmd->base.port = PORT_NONE; 327 328 XGBE_LM_COPY(cmd, supported, lks, supported); 329 XGBE_LM_COPY(cmd, advertising, lks, advertising); 330 XGBE_LM_COPY(cmd, lp_advertising, lks, lp_advertising); 331 332 return 0; 333} 334 335static int xgbe_set_link_ksettings(struct net_device *netdev, 336 const struct ethtool_link_ksettings *cmd) 337{ 338 struct xgbe_prv_data *pdata = netdev_priv(netdev); 339 struct ethtool_link_ksettings *lks = &pdata->phy.lks; 340 __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising); 341 u32 speed; 342 int ret; 343 344 speed = cmd->base.speed; 345 346 if (cmd->base.phy_address != pdata->phy.address) { 347 netdev_err(netdev, "invalid phy address %hhu\n", 348 cmd->base.phy_address); 349 return -EINVAL; 350 } 351 352 if ((cmd->base.autoneg != AUTONEG_ENABLE) && 353 (cmd->base.autoneg != AUTONEG_DISABLE)) { 354 netdev_err(netdev, "unsupported autoneg %hhu\n", 355 cmd->base.autoneg); 356 return -EINVAL; 357 } 358 359 if (cmd->base.autoneg == AUTONEG_DISABLE) { 360 if (!pdata->phy_if.phy_valid_speed(pdata, speed)) { 361 netdev_err(netdev, "unsupported speed %u\n", speed); 362 return -EINVAL; 363 } 364 365 if (cmd->base.duplex != DUPLEX_FULL) { 366 netdev_err(netdev, "unsupported duplex %hhu\n", 367 cmd->base.duplex); 368 return -EINVAL; 369 } 370 } 371 372 netif_dbg(pdata, link, netdev, 373 "requested advertisement 0x%*pb, phy supported 0x%*pb\n", 374 __ETHTOOL_LINK_MODE_MASK_NBITS, cmd->link_modes.advertising, 375 __ETHTOOL_LINK_MODE_MASK_NBITS, lks->link_modes.supported); 376 377 linkmode_and(advertising, cmd->link_modes.advertising, 378 lks->link_modes.supported); 379 380 if ((cmd->base.autoneg == AUTONEG_ENABLE) && 381 bitmap_empty(advertising, __ETHTOOL_LINK_MODE_MASK_NBITS)) { 382 netdev_err(netdev, 383 "unsupported requested advertisement\n"); 384 return -EINVAL; 385 } 386 387 ret = 0; 388 pdata->phy.autoneg = cmd->base.autoneg; 389 pdata->phy.speed = speed; 390 pdata->phy.duplex = cmd->base.duplex; 391 linkmode_copy(lks->link_modes.advertising, advertising); 392 393 if (cmd->base.autoneg == AUTONEG_ENABLE) 394 XGBE_SET_ADV(lks, Autoneg); 395 else 396 XGBE_CLR_ADV(lks, Autoneg); 397 398 if (netif_running(netdev)) 399 ret = pdata->phy_if.phy_config_aneg(pdata); 400 401 return ret; 402} 403 404static void xgbe_get_drvinfo(struct net_device *netdev, 405 struct ethtool_drvinfo *drvinfo) 406{ 407 struct xgbe_prv_data *pdata = netdev_priv(netdev); 408 struct xgbe_hw_features *hw_feat = &pdata->hw_feat; 409 410 strscpy(drvinfo->driver, XGBE_DRV_NAME, sizeof(drvinfo->driver)); 411 strscpy(drvinfo->bus_info, dev_name(pdata->dev), 412 sizeof(drvinfo->bus_info)); 413 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), "%d.%d.%d", 414 XGMAC_GET_BITS(hw_feat->version, MAC_VR, USERVER), 415 XGMAC_GET_BITS(hw_feat->version, MAC_VR, DEVID), 416 XGMAC_GET_BITS(hw_feat->version, MAC_VR, SNPSVER)); 417} 418 419static u32 xgbe_get_msglevel(struct net_device *netdev) 420{ 421 struct xgbe_prv_data *pdata = netdev_priv(netdev); 422 423 return pdata->msg_enable; 424} 425 426static void xgbe_set_msglevel(struct net_device *netdev, u32 msglevel) 427{ 428 struct xgbe_prv_data *pdata = netdev_priv(netdev); 429 430 pdata->msg_enable = msglevel; 431} 432 433static int xgbe_get_coalesce(struct net_device *netdev, 434 struct ethtool_coalesce *ec, 435 struct kernel_ethtool_coalesce *kernel_coal, 436 struct netlink_ext_ack *extack) 437{ 438 struct xgbe_prv_data *pdata = netdev_priv(netdev); 439 440 memset(ec, 0, sizeof(struct ethtool_coalesce)); 441 442 ec->rx_coalesce_usecs = pdata->rx_usecs; 443 ec->rx_max_coalesced_frames = pdata->rx_frames; 444 445 ec->tx_max_coalesced_frames = pdata->tx_frames; 446 447 return 0; 448} 449 450static int xgbe_set_coalesce(struct net_device *netdev, 451 struct ethtool_coalesce *ec, 452 struct kernel_ethtool_coalesce *kernel_coal, 453 struct netlink_ext_ack *extack) 454{ 455 struct xgbe_prv_data *pdata = netdev_priv(netdev); 456 struct xgbe_hw_if *hw_if = &pdata->hw_if; 457 unsigned int rx_frames, rx_riwt, rx_usecs; 458 unsigned int tx_frames; 459 460 rx_riwt = hw_if->usec_to_riwt(pdata, ec->rx_coalesce_usecs); 461 rx_usecs = ec->rx_coalesce_usecs; 462 rx_frames = ec->rx_max_coalesced_frames; 463 464 /* Use smallest possible value if conversion resulted in zero */ 465 if (rx_usecs && !rx_riwt) 466 rx_riwt = 1; 467 468 /* Check the bounds of values for Rx */ 469 if (rx_riwt > XGMAC_MAX_DMA_RIWT) { 470 netdev_err(netdev, "rx-usec is limited to %d usecs\n", 471 hw_if->riwt_to_usec(pdata, XGMAC_MAX_DMA_RIWT)); 472 return -EINVAL; 473 } 474 if (rx_frames > pdata->rx_desc_count) { 475 netdev_err(netdev, "rx-frames is limited to %d frames\n", 476 pdata->rx_desc_count); 477 return -EINVAL; 478 } 479 480 tx_frames = ec->tx_max_coalesced_frames; 481 482 /* Check the bounds of values for Tx */ 483 if (tx_frames > pdata->tx_desc_count) { 484 netdev_err(netdev, "tx-frames is limited to %d frames\n", 485 pdata->tx_desc_count); 486 return -EINVAL; 487 } 488 489 pdata->rx_riwt = rx_riwt; 490 pdata->rx_usecs = rx_usecs; 491 pdata->rx_frames = rx_frames; 492 hw_if->config_rx_coalesce(pdata); 493 494 pdata->tx_frames = tx_frames; 495 hw_if->config_tx_coalesce(pdata); 496 497 return 0; 498} 499 500static int xgbe_get_rxnfc(struct net_device *netdev, 501 struct ethtool_rxnfc *rxnfc, u32 *rule_locs) 502{ 503 struct xgbe_prv_data *pdata = netdev_priv(netdev); 504 505 switch (rxnfc->cmd) { 506 case ETHTOOL_GRXRINGS: 507 rxnfc->data = pdata->rx_ring_count; 508 break; 509 default: 510 return -EOPNOTSUPP; 511 } 512 513 return 0; 514} 515 516static u32 xgbe_get_rxfh_key_size(struct net_device *netdev) 517{ 518 struct xgbe_prv_data *pdata = netdev_priv(netdev); 519 520 return sizeof(pdata->rss_key); 521} 522 523static u32 xgbe_get_rxfh_indir_size(struct net_device *netdev) 524{ 525 struct xgbe_prv_data *pdata = netdev_priv(netdev); 526 527 return ARRAY_SIZE(pdata->rss_table); 528} 529 530static int xgbe_get_rxfh(struct net_device *netdev, 531 struct ethtool_rxfh_param *rxfh) 532{ 533 struct xgbe_prv_data *pdata = netdev_priv(netdev); 534 unsigned int i; 535 536 if (rxfh->indir) { 537 for (i = 0; i < ARRAY_SIZE(pdata->rss_table); i++) 538 rxfh->indir[i] = XGMAC_GET_BITS(pdata->rss_table[i], 539 MAC_RSSDR, DMCH); 540 } 541 542 if (rxfh->key) 543 memcpy(rxfh->key, pdata->rss_key, sizeof(pdata->rss_key)); 544 545 rxfh->hfunc = ETH_RSS_HASH_TOP; 546 547 return 0; 548} 549 550static int xgbe_set_rxfh(struct net_device *netdev, 551 struct ethtool_rxfh_param *rxfh, 552 struct netlink_ext_ack *extack) 553{ 554 struct xgbe_prv_data *pdata = netdev_priv(netdev); 555 struct xgbe_hw_if *hw_if = &pdata->hw_if; 556 unsigned int ret; 557 558 if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE && 559 rxfh->hfunc != ETH_RSS_HASH_TOP) { 560 netdev_err(netdev, "unsupported hash function\n"); 561 return -EOPNOTSUPP; 562 } 563 564 if (rxfh->indir) { 565 ret = hw_if->set_rss_lookup_table(pdata, rxfh->indir); 566 if (ret) 567 return ret; 568 } 569 570 if (rxfh->key) { 571 ret = hw_if->set_rss_hash_key(pdata, rxfh->key); 572 if (ret) 573 return ret; 574 } 575 576 return 0; 577} 578 579static int xgbe_get_ts_info(struct net_device *netdev, 580 struct ethtool_ts_info *ts_info) 581{ 582 struct xgbe_prv_data *pdata = netdev_priv(netdev); 583 584 ts_info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 585 SOF_TIMESTAMPING_RX_SOFTWARE | 586 SOF_TIMESTAMPING_SOFTWARE | 587 SOF_TIMESTAMPING_TX_HARDWARE | 588 SOF_TIMESTAMPING_RX_HARDWARE | 589 SOF_TIMESTAMPING_RAW_HARDWARE; 590 591 if (pdata->ptp_clock) 592 ts_info->phc_index = ptp_clock_index(pdata->ptp_clock); 593 else 594 ts_info->phc_index = -1; 595 596 ts_info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON); 597 ts_info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) | 598 (1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT) | 599 (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | 600 (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | 601 (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT) | 602 (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | 603 (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) | 604 (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) | 605 (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) | 606 (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) | 607 (1 << HWTSTAMP_FILTER_ALL); 608 609 return 0; 610} 611 612static int xgbe_get_module_info(struct net_device *netdev, 613 struct ethtool_modinfo *modinfo) 614{ 615 struct xgbe_prv_data *pdata = netdev_priv(netdev); 616 617 return pdata->phy_if.module_info(pdata, modinfo); 618} 619 620static int xgbe_get_module_eeprom(struct net_device *netdev, 621 struct ethtool_eeprom *eeprom, u8 *data) 622{ 623 struct xgbe_prv_data *pdata = netdev_priv(netdev); 624 625 return pdata->phy_if.module_eeprom(pdata, eeprom, data); 626} 627 628static void 629xgbe_get_ringparam(struct net_device *netdev, 630 struct ethtool_ringparam *ringparam, 631 struct kernel_ethtool_ringparam *kernel_ringparam, 632 struct netlink_ext_ack *extack) 633{ 634 struct xgbe_prv_data *pdata = netdev_priv(netdev); 635 636 ringparam->rx_max_pending = XGBE_RX_DESC_CNT_MAX; 637 ringparam->tx_max_pending = XGBE_TX_DESC_CNT_MAX; 638 ringparam->rx_pending = pdata->rx_desc_count; 639 ringparam->tx_pending = pdata->tx_desc_count; 640} 641 642static int xgbe_set_ringparam(struct net_device *netdev, 643 struct ethtool_ringparam *ringparam, 644 struct kernel_ethtool_ringparam *kernel_ringparam, 645 struct netlink_ext_ack *extack) 646{ 647 struct xgbe_prv_data *pdata = netdev_priv(netdev); 648 unsigned int rx, tx; 649 650 if (ringparam->rx_mini_pending || ringparam->rx_jumbo_pending) { 651 netdev_err(netdev, "unsupported ring parameter\n"); 652 return -EINVAL; 653 } 654 655 if ((ringparam->rx_pending < XGBE_RX_DESC_CNT_MIN) || 656 (ringparam->rx_pending > XGBE_RX_DESC_CNT_MAX)) { 657 netdev_err(netdev, 658 "rx ring parameter must be between %u and %u\n", 659 XGBE_RX_DESC_CNT_MIN, XGBE_RX_DESC_CNT_MAX); 660 return -EINVAL; 661 } 662 663 if ((ringparam->tx_pending < XGBE_TX_DESC_CNT_MIN) || 664 (ringparam->tx_pending > XGBE_TX_DESC_CNT_MAX)) { 665 netdev_err(netdev, 666 "tx ring parameter must be between %u and %u\n", 667 XGBE_TX_DESC_CNT_MIN, XGBE_TX_DESC_CNT_MAX); 668 return -EINVAL; 669 } 670 671 rx = __rounddown_pow_of_two(ringparam->rx_pending); 672 if (rx != ringparam->rx_pending) 673 netdev_notice(netdev, 674 "rx ring parameter rounded to power of two: %u\n", 675 rx); 676 677 tx = __rounddown_pow_of_two(ringparam->tx_pending); 678 if (tx != ringparam->tx_pending) 679 netdev_notice(netdev, 680 "tx ring parameter rounded to power of two: %u\n", 681 tx); 682 683 if ((rx == pdata->rx_desc_count) && 684 (tx == pdata->tx_desc_count)) 685 goto out; 686 687 pdata->rx_desc_count = rx; 688 pdata->tx_desc_count = tx; 689 690 xgbe_restart_dev(pdata); 691 692out: 693 return 0; 694} 695 696static void xgbe_get_channels(struct net_device *netdev, 697 struct ethtool_channels *channels) 698{ 699 struct xgbe_prv_data *pdata = netdev_priv(netdev); 700 unsigned int rx, tx, combined; 701 702 /* Calculate maximums allowed: 703 * - Take into account the number of available IRQs 704 * - Do not take into account the number of online CPUs so that 705 * the user can over-subscribe if desired 706 * - Tx is additionally limited by the number of hardware queues 707 */ 708 rx = min(pdata->hw_feat.rx_ch_cnt, pdata->rx_max_channel_count); 709 rx = min(rx, pdata->channel_irq_count); 710 tx = min(pdata->hw_feat.tx_ch_cnt, pdata->tx_max_channel_count); 711 tx = min(tx, pdata->channel_irq_count); 712 tx = min(tx, pdata->tx_max_q_count); 713 714 combined = min(rx, tx); 715 716 channels->max_combined = combined; 717 channels->max_rx = rx ? rx - 1 : 0; 718 channels->max_tx = tx ? tx - 1 : 0; 719 720 /* Get current settings based on device state */ 721 rx = pdata->new_rx_ring_count ? : pdata->rx_ring_count; 722 tx = pdata->new_tx_ring_count ? : pdata->tx_ring_count; 723 724 combined = min(rx, tx); 725 rx -= combined; 726 tx -= combined; 727 728 channels->combined_count = combined; 729 channels->rx_count = rx; 730 channels->tx_count = tx; 731} 732 733static void xgbe_print_set_channels_input(struct net_device *netdev, 734 struct ethtool_channels *channels) 735{ 736 netdev_err(netdev, "channel inputs: combined=%u, rx-only=%u, tx-only=%u\n", 737 channels->combined_count, channels->rx_count, 738 channels->tx_count); 739} 740 741static int xgbe_set_channels(struct net_device *netdev, 742 struct ethtool_channels *channels) 743{ 744 struct xgbe_prv_data *pdata = netdev_priv(netdev); 745 unsigned int rx, rx_curr, tx, tx_curr, combined; 746 747 /* Calculate maximums allowed: 748 * - Take into account the number of available IRQs 749 * - Do not take into account the number of online CPUs so that 750 * the user can over-subscribe if desired 751 * - Tx is additionally limited by the number of hardware queues 752 */ 753 rx = min(pdata->hw_feat.rx_ch_cnt, pdata->rx_max_channel_count); 754 rx = min(rx, pdata->channel_irq_count); 755 tx = min(pdata->hw_feat.tx_ch_cnt, pdata->tx_max_channel_count); 756 tx = min(tx, pdata->tx_max_q_count); 757 tx = min(tx, pdata->channel_irq_count); 758 759 combined = min(rx, tx); 760 761 /* Should not be setting other count */ 762 if (channels->other_count) { 763 netdev_err(netdev, 764 "other channel count must be zero\n"); 765 return -EINVAL; 766 } 767 768 /* Require at least one Combined (Rx and Tx) channel */ 769 if (!channels->combined_count) { 770 netdev_err(netdev, 771 "at least one combined Rx/Tx channel is required\n"); 772 xgbe_print_set_channels_input(netdev, channels); 773 return -EINVAL; 774 } 775 776 /* Check combined channels */ 777 if (channels->combined_count > combined) { 778 netdev_err(netdev, 779 "combined channel count cannot exceed %u\n", 780 combined); 781 xgbe_print_set_channels_input(netdev, channels); 782 return -EINVAL; 783 } 784 785 /* Can have some Rx-only or Tx-only channels, but not both */ 786 if (channels->rx_count && channels->tx_count) { 787 netdev_err(netdev, 788 "cannot specify both Rx-only and Tx-only channels\n"); 789 xgbe_print_set_channels_input(netdev, channels); 790 return -EINVAL; 791 } 792 793 /* Check that we don't exceed the maximum number of channels */ 794 if ((channels->combined_count + channels->rx_count) > rx) { 795 netdev_err(netdev, 796 "total Rx channels (%u) requested exceeds maximum available (%u)\n", 797 channels->combined_count + channels->rx_count, rx); 798 xgbe_print_set_channels_input(netdev, channels); 799 return -EINVAL; 800 } 801 802 if ((channels->combined_count + channels->tx_count) > tx) { 803 netdev_err(netdev, 804 "total Tx channels (%u) requested exceeds maximum available (%u)\n", 805 channels->combined_count + channels->tx_count, tx); 806 xgbe_print_set_channels_input(netdev, channels); 807 return -EINVAL; 808 } 809 810 rx = channels->combined_count + channels->rx_count; 811 tx = channels->combined_count + channels->tx_count; 812 813 rx_curr = pdata->new_rx_ring_count ? : pdata->rx_ring_count; 814 tx_curr = pdata->new_tx_ring_count ? : pdata->tx_ring_count; 815 816 if ((rx == rx_curr) && (tx == tx_curr)) 817 goto out; 818 819 pdata->new_rx_ring_count = rx; 820 pdata->new_tx_ring_count = tx; 821 822 xgbe_full_restart_dev(pdata); 823 824out: 825 return 0; 826} 827 828static const struct ethtool_ops xgbe_ethtool_ops = { 829 .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS | 830 ETHTOOL_COALESCE_MAX_FRAMES, 831 .get_drvinfo = xgbe_get_drvinfo, 832 .get_msglevel = xgbe_get_msglevel, 833 .set_msglevel = xgbe_set_msglevel, 834 .get_link = ethtool_op_get_link, 835 .get_coalesce = xgbe_get_coalesce, 836 .set_coalesce = xgbe_set_coalesce, 837 .get_pauseparam = xgbe_get_pauseparam, 838 .set_pauseparam = xgbe_set_pauseparam, 839 .get_strings = xgbe_get_strings, 840 .get_ethtool_stats = xgbe_get_ethtool_stats, 841 .get_sset_count = xgbe_get_sset_count, 842 .get_rxnfc = xgbe_get_rxnfc, 843 .get_rxfh_key_size = xgbe_get_rxfh_key_size, 844 .get_rxfh_indir_size = xgbe_get_rxfh_indir_size, 845 .get_rxfh = xgbe_get_rxfh, 846 .set_rxfh = xgbe_set_rxfh, 847 .get_ts_info = xgbe_get_ts_info, 848 .get_link_ksettings = xgbe_get_link_ksettings, 849 .set_link_ksettings = xgbe_set_link_ksettings, 850 .get_module_info = xgbe_get_module_info, 851 .get_module_eeprom = xgbe_get_module_eeprom, 852 .get_ringparam = xgbe_get_ringparam, 853 .set_ringparam = xgbe_set_ringparam, 854 .get_channels = xgbe_get_channels, 855 .set_channels = xgbe_set_channels, 856}; 857 858const struct ethtool_ops *xgbe_get_ethtool_ops(void) 859{ 860 return &xgbe_ethtool_ops; 861} 862