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" 123 124 struct 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 } 141 142 static 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) 190 191 static 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 ethtool_puts(&data, xgbe_gstring_stats[i].stat_string); 200 201 for (i = 0; i < pdata->tx_ring_count; i++) { 202 ethtool_sprintf(&data, "txq_%u_packets", i); 203 ethtool_sprintf(&data, "txq_%u_bytes", i); 204 } 205 206 for (i = 0; i < pdata->rx_ring_count; i++) { 207 ethtool_sprintf(&data, "rxq_%u_packets", i); 208 ethtool_sprintf(&data, "rxq_%u_bytes", i); 209 } 210 211 break; 212 } 213 } 214 215 static void xgbe_get_ethtool_stats(struct net_device *netdev, 216 struct ethtool_stats *stats, u64 *data) 217 { 218 struct xgbe_prv_data *pdata = netdev_priv(netdev); 219 u8 *stat; 220 int i; 221 222 pdata->hw_if.read_mmc_stats(pdata); 223 for (i = 0; i < XGBE_STATS_COUNT; i++) { 224 stat = (u8 *)pdata + xgbe_gstring_stats[i].stat_offset; 225 *data++ = *(u64 *)stat; 226 } 227 for (i = 0; i < pdata->tx_ring_count; i++) { 228 *data++ = pdata->ext_stats.txq_packets[i]; 229 *data++ = pdata->ext_stats.txq_bytes[i]; 230 } 231 for (i = 0; i < pdata->rx_ring_count; i++) { 232 *data++ = pdata->ext_stats.rxq_packets[i]; 233 *data++ = pdata->ext_stats.rxq_bytes[i]; 234 } 235 } 236 237 static int xgbe_get_sset_count(struct net_device *netdev, int stringset) 238 { 239 struct xgbe_prv_data *pdata = netdev_priv(netdev); 240 int ret; 241 242 switch (stringset) { 243 case ETH_SS_STATS: 244 ret = XGBE_STATS_COUNT + 245 (pdata->tx_ring_count * 2) + 246 (pdata->rx_ring_count * 2); 247 break; 248 249 default: 250 ret = -EOPNOTSUPP; 251 } 252 253 return ret; 254 } 255 256 static void xgbe_get_pauseparam(struct net_device *netdev, 257 struct ethtool_pauseparam *pause) 258 { 259 struct xgbe_prv_data *pdata = netdev_priv(netdev); 260 261 pause->autoneg = pdata->phy.pause_autoneg; 262 pause->tx_pause = pdata->phy.tx_pause; 263 pause->rx_pause = pdata->phy.rx_pause; 264 } 265 266 static int xgbe_set_pauseparam(struct net_device *netdev, 267 struct ethtool_pauseparam *pause) 268 { 269 struct xgbe_prv_data *pdata = netdev_priv(netdev); 270 struct ethtool_link_ksettings *lks = &pdata->phy.lks; 271 int ret = 0; 272 273 if (pause->autoneg && (pdata->phy.autoneg != AUTONEG_ENABLE)) { 274 netdev_err(netdev, 275 "autoneg disabled, pause autoneg not available\n"); 276 return -EINVAL; 277 } 278 279 pdata->phy.pause_autoneg = pause->autoneg; 280 pdata->phy.tx_pause = pause->tx_pause; 281 pdata->phy.rx_pause = pause->rx_pause; 282 283 XGBE_CLR_ADV(lks, Pause); 284 XGBE_CLR_ADV(lks, Asym_Pause); 285 286 if (pause->rx_pause) { 287 XGBE_SET_ADV(lks, Pause); 288 XGBE_SET_ADV(lks, Asym_Pause); 289 } 290 291 if (pause->tx_pause) { 292 /* Equivalent to XOR of Asym_Pause */ 293 if (XGBE_ADV(lks, Asym_Pause)) 294 XGBE_CLR_ADV(lks, Asym_Pause); 295 else 296 XGBE_SET_ADV(lks, Asym_Pause); 297 } 298 299 if (netif_running(netdev)) 300 ret = pdata->phy_if.phy_config_aneg(pdata); 301 302 return ret; 303 } 304 305 static int xgbe_get_link_ksettings(struct net_device *netdev, 306 struct ethtool_link_ksettings *cmd) 307 { 308 struct xgbe_prv_data *pdata = netdev_priv(netdev); 309 struct ethtool_link_ksettings *lks = &pdata->phy.lks; 310 311 cmd->base.phy_address = pdata->phy.address; 312 313 if (netif_carrier_ok(netdev)) { 314 cmd->base.speed = pdata->phy.speed; 315 cmd->base.duplex = pdata->phy.duplex; 316 } else { 317 cmd->base.speed = SPEED_UNKNOWN; 318 cmd->base.duplex = DUPLEX_UNKNOWN; 319 } 320 321 cmd->base.autoneg = pdata->phy.autoneg; 322 cmd->base.port = PORT_NONE; 323 324 XGBE_LM_COPY(cmd, supported, lks, supported); 325 XGBE_LM_COPY(cmd, advertising, lks, advertising); 326 XGBE_LM_COPY(cmd, lp_advertising, lks, lp_advertising); 327 328 return 0; 329 } 330 331 static int xgbe_set_link_ksettings(struct net_device *netdev, 332 const struct ethtool_link_ksettings *cmd) 333 { 334 struct xgbe_prv_data *pdata = netdev_priv(netdev); 335 struct ethtool_link_ksettings *lks = &pdata->phy.lks; 336 __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising); 337 u32 speed; 338 int ret; 339 340 speed = cmd->base.speed; 341 342 if (cmd->base.phy_address != pdata->phy.address) { 343 netdev_err(netdev, "invalid phy address %hhu\n", 344 cmd->base.phy_address); 345 return -EINVAL; 346 } 347 348 if ((cmd->base.autoneg != AUTONEG_ENABLE) && 349 (cmd->base.autoneg != AUTONEG_DISABLE)) { 350 netdev_err(netdev, "unsupported autoneg %hhu\n", 351 cmd->base.autoneg); 352 return -EINVAL; 353 } 354 355 if (cmd->base.autoneg == AUTONEG_DISABLE) { 356 if (!pdata->phy_if.phy_valid_speed(pdata, speed)) { 357 netdev_err(netdev, "unsupported speed %u\n", speed); 358 return -EINVAL; 359 } 360 361 if (cmd->base.duplex != DUPLEX_FULL) { 362 netdev_err(netdev, "unsupported duplex %hhu\n", 363 cmd->base.duplex); 364 return -EINVAL; 365 } 366 } 367 368 netif_dbg(pdata, link, netdev, 369 "requested advertisement 0x%*pb, phy supported 0x%*pb\n", 370 __ETHTOOL_LINK_MODE_MASK_NBITS, cmd->link_modes.advertising, 371 __ETHTOOL_LINK_MODE_MASK_NBITS, lks->link_modes.supported); 372 373 linkmode_and(advertising, cmd->link_modes.advertising, 374 lks->link_modes.supported); 375 376 if ((cmd->base.autoneg == AUTONEG_ENABLE) && 377 bitmap_empty(advertising, __ETHTOOL_LINK_MODE_MASK_NBITS)) { 378 netdev_err(netdev, 379 "unsupported requested advertisement\n"); 380 return -EINVAL; 381 } 382 383 ret = 0; 384 pdata->phy.autoneg = cmd->base.autoneg; 385 pdata->phy.speed = speed; 386 pdata->phy.duplex = cmd->base.duplex; 387 linkmode_copy(lks->link_modes.advertising, advertising); 388 389 if (cmd->base.autoneg == AUTONEG_ENABLE) 390 XGBE_SET_ADV(lks, Autoneg); 391 else 392 XGBE_CLR_ADV(lks, Autoneg); 393 394 if (netif_running(netdev)) 395 ret = pdata->phy_if.phy_config_aneg(pdata); 396 397 return ret; 398 } 399 400 static void xgbe_get_drvinfo(struct net_device *netdev, 401 struct ethtool_drvinfo *drvinfo) 402 { 403 struct xgbe_prv_data *pdata = netdev_priv(netdev); 404 struct xgbe_hw_features *hw_feat = &pdata->hw_feat; 405 406 strscpy(drvinfo->driver, XGBE_DRV_NAME, sizeof(drvinfo->driver)); 407 strscpy(drvinfo->bus_info, dev_name(pdata->dev), 408 sizeof(drvinfo->bus_info)); 409 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), "%d.%d.%d", 410 XGMAC_GET_BITS(hw_feat->version, MAC_VR, USERVER), 411 XGMAC_GET_BITS(hw_feat->version, MAC_VR, DEVID), 412 XGMAC_GET_BITS(hw_feat->version, MAC_VR, SNPSVER)); 413 } 414 415 static u32 xgbe_get_msglevel(struct net_device *netdev) 416 { 417 struct xgbe_prv_data *pdata = netdev_priv(netdev); 418 419 return pdata->msg_enable; 420 } 421 422 static void xgbe_set_msglevel(struct net_device *netdev, u32 msglevel) 423 { 424 struct xgbe_prv_data *pdata = netdev_priv(netdev); 425 426 pdata->msg_enable = msglevel; 427 } 428 429 static int xgbe_get_coalesce(struct net_device *netdev, 430 struct ethtool_coalesce *ec, 431 struct kernel_ethtool_coalesce *kernel_coal, 432 struct netlink_ext_ack *extack) 433 { 434 struct xgbe_prv_data *pdata = netdev_priv(netdev); 435 436 memset(ec, 0, sizeof(struct ethtool_coalesce)); 437 438 ec->rx_coalesce_usecs = pdata->rx_usecs; 439 ec->rx_max_coalesced_frames = pdata->rx_frames; 440 441 ec->tx_max_coalesced_frames = pdata->tx_frames; 442 443 return 0; 444 } 445 446 static int xgbe_set_coalesce(struct net_device *netdev, 447 struct ethtool_coalesce *ec, 448 struct kernel_ethtool_coalesce *kernel_coal, 449 struct netlink_ext_ack *extack) 450 { 451 struct xgbe_prv_data *pdata = netdev_priv(netdev); 452 struct xgbe_hw_if *hw_if = &pdata->hw_if; 453 unsigned int rx_frames, rx_riwt, rx_usecs; 454 unsigned int tx_frames; 455 456 rx_riwt = hw_if->usec_to_riwt(pdata, ec->rx_coalesce_usecs); 457 rx_usecs = ec->rx_coalesce_usecs; 458 rx_frames = ec->rx_max_coalesced_frames; 459 460 /* Use smallest possible value if conversion resulted in zero */ 461 if (rx_usecs && !rx_riwt) 462 rx_riwt = 1; 463 464 /* Check the bounds of values for Rx */ 465 if (rx_riwt > XGMAC_MAX_DMA_RIWT) { 466 netdev_err(netdev, "rx-usec is limited to %d usecs\n", 467 hw_if->riwt_to_usec(pdata, XGMAC_MAX_DMA_RIWT)); 468 return -EINVAL; 469 } 470 if (rx_frames > pdata->rx_desc_count) { 471 netdev_err(netdev, "rx-frames is limited to %d frames\n", 472 pdata->rx_desc_count); 473 return -EINVAL; 474 } 475 476 tx_frames = ec->tx_max_coalesced_frames; 477 478 /* Check the bounds of values for Tx */ 479 if (tx_frames > pdata->tx_desc_count) { 480 netdev_err(netdev, "tx-frames is limited to %d frames\n", 481 pdata->tx_desc_count); 482 return -EINVAL; 483 } 484 485 pdata->rx_riwt = rx_riwt; 486 pdata->rx_usecs = rx_usecs; 487 pdata->rx_frames = rx_frames; 488 hw_if->config_rx_coalesce(pdata); 489 490 pdata->tx_frames = tx_frames; 491 hw_if->config_tx_coalesce(pdata); 492 493 return 0; 494 } 495 496 static int xgbe_get_rxnfc(struct net_device *netdev, 497 struct ethtool_rxnfc *rxnfc, u32 *rule_locs) 498 { 499 struct xgbe_prv_data *pdata = netdev_priv(netdev); 500 501 switch (rxnfc->cmd) { 502 case ETHTOOL_GRXRINGS: 503 rxnfc->data = pdata->rx_ring_count; 504 break; 505 default: 506 return -EOPNOTSUPP; 507 } 508 509 return 0; 510 } 511 512 static u32 xgbe_get_rxfh_key_size(struct net_device *netdev) 513 { 514 struct xgbe_prv_data *pdata = netdev_priv(netdev); 515 516 return sizeof(pdata->rss_key); 517 } 518 519 static u32 xgbe_get_rxfh_indir_size(struct net_device *netdev) 520 { 521 struct xgbe_prv_data *pdata = netdev_priv(netdev); 522 523 return ARRAY_SIZE(pdata->rss_table); 524 } 525 526 static int xgbe_get_rxfh(struct net_device *netdev, 527 struct ethtool_rxfh_param *rxfh) 528 { 529 struct xgbe_prv_data *pdata = netdev_priv(netdev); 530 unsigned int i; 531 532 if (rxfh->indir) { 533 for (i = 0; i < ARRAY_SIZE(pdata->rss_table); i++) 534 rxfh->indir[i] = XGMAC_GET_BITS(pdata->rss_table[i], 535 MAC_RSSDR, DMCH); 536 } 537 538 if (rxfh->key) 539 memcpy(rxfh->key, pdata->rss_key, sizeof(pdata->rss_key)); 540 541 rxfh->hfunc = ETH_RSS_HASH_TOP; 542 543 return 0; 544 } 545 546 static int xgbe_set_rxfh(struct net_device *netdev, 547 struct ethtool_rxfh_param *rxfh, 548 struct netlink_ext_ack *extack) 549 { 550 struct xgbe_prv_data *pdata = netdev_priv(netdev); 551 struct xgbe_hw_if *hw_if = &pdata->hw_if; 552 unsigned int ret; 553 554 if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE && 555 rxfh->hfunc != ETH_RSS_HASH_TOP) { 556 netdev_err(netdev, "unsupported hash function\n"); 557 return -EOPNOTSUPP; 558 } 559 560 if (rxfh->indir) { 561 ret = hw_if->set_rss_lookup_table(pdata, rxfh->indir); 562 if (ret) 563 return ret; 564 } 565 566 if (rxfh->key) { 567 ret = hw_if->set_rss_hash_key(pdata, rxfh->key); 568 if (ret) 569 return ret; 570 } 571 572 return 0; 573 } 574 575 static int xgbe_get_ts_info(struct net_device *netdev, 576 struct kernel_ethtool_ts_info *ts_info) 577 { 578 struct xgbe_prv_data *pdata = netdev_priv(netdev); 579 580 ts_info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 581 SOF_TIMESTAMPING_TX_HARDWARE | 582 SOF_TIMESTAMPING_RX_HARDWARE | 583 SOF_TIMESTAMPING_RAW_HARDWARE; 584 585 if (pdata->ptp_clock) 586 ts_info->phc_index = ptp_clock_index(pdata->ptp_clock); 587 588 ts_info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON); 589 ts_info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) | 590 (1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT) | 591 (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | 592 (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | 593 (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT) | 594 (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | 595 (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) | 596 (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) | 597 (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) | 598 (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) | 599 (1 << HWTSTAMP_FILTER_ALL); 600 601 return 0; 602 } 603 604 static int xgbe_get_module_info(struct net_device *netdev, 605 struct ethtool_modinfo *modinfo) 606 { 607 struct xgbe_prv_data *pdata = netdev_priv(netdev); 608 609 return pdata->phy_if.module_info(pdata, modinfo); 610 } 611 612 static int xgbe_get_module_eeprom(struct net_device *netdev, 613 struct ethtool_eeprom *eeprom, u8 *data) 614 { 615 struct xgbe_prv_data *pdata = netdev_priv(netdev); 616 617 return pdata->phy_if.module_eeprom(pdata, eeprom, data); 618 } 619 620 static void 621 xgbe_get_ringparam(struct net_device *netdev, 622 struct ethtool_ringparam *ringparam, 623 struct kernel_ethtool_ringparam *kernel_ringparam, 624 struct netlink_ext_ack *extack) 625 { 626 struct xgbe_prv_data *pdata = netdev_priv(netdev); 627 628 ringparam->rx_max_pending = XGBE_RX_DESC_CNT_MAX; 629 ringparam->tx_max_pending = XGBE_TX_DESC_CNT_MAX; 630 ringparam->rx_pending = pdata->rx_desc_count; 631 ringparam->tx_pending = pdata->tx_desc_count; 632 } 633 634 static int xgbe_set_ringparam(struct net_device *netdev, 635 struct ethtool_ringparam *ringparam, 636 struct kernel_ethtool_ringparam *kernel_ringparam, 637 struct netlink_ext_ack *extack) 638 { 639 struct xgbe_prv_data *pdata = netdev_priv(netdev); 640 unsigned int rx, tx; 641 642 if (ringparam->rx_mini_pending || ringparam->rx_jumbo_pending) { 643 netdev_err(netdev, "unsupported ring parameter\n"); 644 return -EINVAL; 645 } 646 647 if ((ringparam->rx_pending < XGBE_RX_DESC_CNT_MIN) || 648 (ringparam->rx_pending > XGBE_RX_DESC_CNT_MAX)) { 649 netdev_err(netdev, 650 "rx ring parameter must be between %u and %u\n", 651 XGBE_RX_DESC_CNT_MIN, XGBE_RX_DESC_CNT_MAX); 652 return -EINVAL; 653 } 654 655 if ((ringparam->tx_pending < XGBE_TX_DESC_CNT_MIN) || 656 (ringparam->tx_pending > XGBE_TX_DESC_CNT_MAX)) { 657 netdev_err(netdev, 658 "tx ring parameter must be between %u and %u\n", 659 XGBE_TX_DESC_CNT_MIN, XGBE_TX_DESC_CNT_MAX); 660 return -EINVAL; 661 } 662 663 rx = __rounddown_pow_of_two(ringparam->rx_pending); 664 if (rx != ringparam->rx_pending) 665 netdev_notice(netdev, 666 "rx ring parameter rounded to power of two: %u\n", 667 rx); 668 669 tx = __rounddown_pow_of_two(ringparam->tx_pending); 670 if (tx != ringparam->tx_pending) 671 netdev_notice(netdev, 672 "tx ring parameter rounded to power of two: %u\n", 673 tx); 674 675 if ((rx == pdata->rx_desc_count) && 676 (tx == pdata->tx_desc_count)) 677 goto out; 678 679 pdata->rx_desc_count = rx; 680 pdata->tx_desc_count = tx; 681 682 xgbe_restart_dev(pdata); 683 684 out: 685 return 0; 686 } 687 688 static void xgbe_get_channels(struct net_device *netdev, 689 struct ethtool_channels *channels) 690 { 691 struct xgbe_prv_data *pdata = netdev_priv(netdev); 692 unsigned int rx, tx, combined; 693 694 /* Calculate maximums allowed: 695 * - Take into account the number of available IRQs 696 * - Do not take into account the number of online CPUs so that 697 * the user can over-subscribe if desired 698 * - Tx is additionally limited by the number of hardware queues 699 */ 700 rx = min(pdata->hw_feat.rx_ch_cnt, pdata->rx_max_channel_count); 701 rx = min(rx, pdata->channel_irq_count); 702 tx = min(pdata->hw_feat.tx_ch_cnt, pdata->tx_max_channel_count); 703 tx = min(tx, pdata->channel_irq_count); 704 tx = min(tx, pdata->tx_max_q_count); 705 706 combined = min(rx, tx); 707 708 channels->max_combined = combined; 709 channels->max_rx = rx ? rx - 1 : 0; 710 channels->max_tx = tx ? tx - 1 : 0; 711 712 /* Get current settings based on device state */ 713 rx = pdata->new_rx_ring_count ? : pdata->rx_ring_count; 714 tx = pdata->new_tx_ring_count ? : pdata->tx_ring_count; 715 716 combined = min(rx, tx); 717 rx -= combined; 718 tx -= combined; 719 720 channels->combined_count = combined; 721 channels->rx_count = rx; 722 channels->tx_count = tx; 723 } 724 725 static void xgbe_print_set_channels_input(struct net_device *netdev, 726 struct ethtool_channels *channels) 727 { 728 netdev_err(netdev, "channel inputs: combined=%u, rx-only=%u, tx-only=%u\n", 729 channels->combined_count, channels->rx_count, 730 channels->tx_count); 731 } 732 733 static int xgbe_set_channels(struct net_device *netdev, 734 struct ethtool_channels *channels) 735 { 736 struct xgbe_prv_data *pdata = netdev_priv(netdev); 737 unsigned int rx, rx_curr, tx, tx_curr, combined; 738 739 /* Calculate maximums allowed: 740 * - Take into account the number of available IRQs 741 * - Do not take into account the number of online CPUs so that 742 * the user can over-subscribe if desired 743 * - Tx is additionally limited by the number of hardware queues 744 */ 745 rx = min(pdata->hw_feat.rx_ch_cnt, pdata->rx_max_channel_count); 746 rx = min(rx, pdata->channel_irq_count); 747 tx = min(pdata->hw_feat.tx_ch_cnt, pdata->tx_max_channel_count); 748 tx = min(tx, pdata->tx_max_q_count); 749 tx = min(tx, pdata->channel_irq_count); 750 751 combined = min(rx, tx); 752 753 /* Should not be setting other count */ 754 if (channels->other_count) { 755 netdev_err(netdev, 756 "other channel count must be zero\n"); 757 return -EINVAL; 758 } 759 760 /* Require at least one Combined (Rx and Tx) channel */ 761 if (!channels->combined_count) { 762 netdev_err(netdev, 763 "at least one combined Rx/Tx channel is required\n"); 764 xgbe_print_set_channels_input(netdev, channels); 765 return -EINVAL; 766 } 767 768 /* Check combined channels */ 769 if (channels->combined_count > combined) { 770 netdev_err(netdev, 771 "combined channel count cannot exceed %u\n", 772 combined); 773 xgbe_print_set_channels_input(netdev, channels); 774 return -EINVAL; 775 } 776 777 /* Can have some Rx-only or Tx-only channels, but not both */ 778 if (channels->rx_count && channels->tx_count) { 779 netdev_err(netdev, 780 "cannot specify both Rx-only and Tx-only channels\n"); 781 xgbe_print_set_channels_input(netdev, channels); 782 return -EINVAL; 783 } 784 785 /* Check that we don't exceed the maximum number of channels */ 786 if ((channels->combined_count + channels->rx_count) > rx) { 787 netdev_err(netdev, 788 "total Rx channels (%u) requested exceeds maximum available (%u)\n", 789 channels->combined_count + channels->rx_count, rx); 790 xgbe_print_set_channels_input(netdev, channels); 791 return -EINVAL; 792 } 793 794 if ((channels->combined_count + channels->tx_count) > tx) { 795 netdev_err(netdev, 796 "total Tx channels (%u) requested exceeds maximum available (%u)\n", 797 channels->combined_count + channels->tx_count, tx); 798 xgbe_print_set_channels_input(netdev, channels); 799 return -EINVAL; 800 } 801 802 rx = channels->combined_count + channels->rx_count; 803 tx = channels->combined_count + channels->tx_count; 804 805 rx_curr = pdata->new_rx_ring_count ? : pdata->rx_ring_count; 806 tx_curr = pdata->new_tx_ring_count ? : pdata->tx_ring_count; 807 808 if ((rx == rx_curr) && (tx == tx_curr)) 809 goto out; 810 811 pdata->new_rx_ring_count = rx; 812 pdata->new_tx_ring_count = tx; 813 814 xgbe_full_restart_dev(pdata); 815 816 out: 817 return 0; 818 } 819 820 static const struct ethtool_ops xgbe_ethtool_ops = { 821 .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS | 822 ETHTOOL_COALESCE_MAX_FRAMES, 823 .get_drvinfo = xgbe_get_drvinfo, 824 .get_msglevel = xgbe_get_msglevel, 825 .set_msglevel = xgbe_set_msglevel, 826 .get_link = ethtool_op_get_link, 827 .get_coalesce = xgbe_get_coalesce, 828 .set_coalesce = xgbe_set_coalesce, 829 .get_pauseparam = xgbe_get_pauseparam, 830 .set_pauseparam = xgbe_set_pauseparam, 831 .get_strings = xgbe_get_strings, 832 .get_ethtool_stats = xgbe_get_ethtool_stats, 833 .get_sset_count = xgbe_get_sset_count, 834 .get_rxnfc = xgbe_get_rxnfc, 835 .get_rxfh_key_size = xgbe_get_rxfh_key_size, 836 .get_rxfh_indir_size = xgbe_get_rxfh_indir_size, 837 .get_rxfh = xgbe_get_rxfh, 838 .set_rxfh = xgbe_set_rxfh, 839 .get_ts_info = xgbe_get_ts_info, 840 .get_link_ksettings = xgbe_get_link_ksettings, 841 .set_link_ksettings = xgbe_set_link_ksettings, 842 .get_module_info = xgbe_get_module_info, 843 .get_module_eeprom = xgbe_get_module_eeprom, 844 .get_ringparam = xgbe_get_ringparam, 845 .set_ringparam = xgbe_set_ringparam, 846 .get_channels = xgbe_get_channels, 847 .set_channels = xgbe_set_channels, 848 }; 849 850 const struct ethtool_ops *xgbe_get_ethtool_ops(void) 851 { 852 return &xgbe_ethtool_ops; 853 } 854