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 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 } 218 219 static 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 } 240 241 static 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 } 259 260 static 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 } 269 270 static 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 } 308 309 static 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 cmd->base.autoneg = pdata->phy.autoneg; 318 cmd->base.speed = pdata->phy.speed; 319 cmd->base.duplex = pdata->phy.duplex; 320 321 cmd->base.port = PORT_NONE; 322 323 XGBE_LM_COPY(cmd, supported, lks, supported); 324 XGBE_LM_COPY(cmd, advertising, lks, advertising); 325 XGBE_LM_COPY(cmd, lp_advertising, lks, lp_advertising); 326 327 return 0; 328 } 329 330 static int xgbe_set_link_ksettings(struct net_device *netdev, 331 const struct ethtool_link_ksettings *cmd) 332 { 333 struct xgbe_prv_data *pdata = netdev_priv(netdev); 334 struct ethtool_link_ksettings *lks = &pdata->phy.lks; 335 __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising); 336 u32 speed; 337 int ret; 338 339 speed = cmd->base.speed; 340 341 if (cmd->base.phy_address != pdata->phy.address) { 342 netdev_err(netdev, "invalid phy address %hhu\n", 343 cmd->base.phy_address); 344 return -EINVAL; 345 } 346 347 if ((cmd->base.autoneg != AUTONEG_ENABLE) && 348 (cmd->base.autoneg != AUTONEG_DISABLE)) { 349 netdev_err(netdev, "unsupported autoneg %hhu\n", 350 cmd->base.autoneg); 351 return -EINVAL; 352 } 353 354 if (cmd->base.autoneg == AUTONEG_DISABLE) { 355 if (!pdata->phy_if.phy_valid_speed(pdata, speed)) { 356 netdev_err(netdev, "unsupported speed %u\n", speed); 357 return -EINVAL; 358 } 359 360 if (cmd->base.duplex != DUPLEX_FULL) { 361 netdev_err(netdev, "unsupported duplex %hhu\n", 362 cmd->base.duplex); 363 return -EINVAL; 364 } 365 } 366 367 netif_dbg(pdata, link, netdev, 368 "requested advertisement 0x%*pb, phy supported 0x%*pb\n", 369 __ETHTOOL_LINK_MODE_MASK_NBITS, cmd->link_modes.advertising, 370 __ETHTOOL_LINK_MODE_MASK_NBITS, lks->link_modes.supported); 371 372 bitmap_and(advertising, 373 cmd->link_modes.advertising, lks->link_modes.supported, 374 __ETHTOOL_LINK_MODE_MASK_NBITS); 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 bitmap_copy(lks->link_modes.advertising, advertising, 388 __ETHTOOL_LINK_MODE_MASK_NBITS); 389 390 if (cmd->base.autoneg == AUTONEG_ENABLE) 391 XGBE_SET_ADV(lks, Autoneg); 392 else 393 XGBE_CLR_ADV(lks, Autoneg); 394 395 if (netif_running(netdev)) 396 ret = pdata->phy_if.phy_config_aneg(pdata); 397 398 return ret; 399 } 400 401 static void xgbe_get_drvinfo(struct net_device *netdev, 402 struct ethtool_drvinfo *drvinfo) 403 { 404 struct xgbe_prv_data *pdata = netdev_priv(netdev); 405 struct xgbe_hw_features *hw_feat = &pdata->hw_feat; 406 407 strlcpy(drvinfo->driver, XGBE_DRV_NAME, sizeof(drvinfo->driver)); 408 strlcpy(drvinfo->bus_info, dev_name(pdata->dev), 409 sizeof(drvinfo->bus_info)); 410 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), "%d.%d.%d", 411 XGMAC_GET_BITS(hw_feat->version, MAC_VR, USERVER), 412 XGMAC_GET_BITS(hw_feat->version, MAC_VR, DEVID), 413 XGMAC_GET_BITS(hw_feat->version, MAC_VR, SNPSVER)); 414 } 415 416 static u32 xgbe_get_msglevel(struct net_device *netdev) 417 { 418 struct xgbe_prv_data *pdata = netdev_priv(netdev); 419 420 return pdata->msg_enable; 421 } 422 423 static void xgbe_set_msglevel(struct net_device *netdev, u32 msglevel) 424 { 425 struct xgbe_prv_data *pdata = netdev_priv(netdev); 426 427 pdata->msg_enable = msglevel; 428 } 429 430 static int xgbe_get_coalesce(struct net_device *netdev, 431 struct ethtool_coalesce *ec) 432 { 433 struct xgbe_prv_data *pdata = netdev_priv(netdev); 434 435 memset(ec, 0, sizeof(struct ethtool_coalesce)); 436 437 ec->rx_coalesce_usecs = pdata->rx_usecs; 438 ec->rx_max_coalesced_frames = pdata->rx_frames; 439 440 ec->tx_max_coalesced_frames = pdata->tx_frames; 441 442 return 0; 443 } 444 445 static int xgbe_set_coalesce(struct net_device *netdev, 446 struct ethtool_coalesce *ec) 447 { 448 struct xgbe_prv_data *pdata = netdev_priv(netdev); 449 struct xgbe_hw_if *hw_if = &pdata->hw_if; 450 unsigned int rx_frames, rx_riwt, rx_usecs; 451 unsigned int tx_frames; 452 453 rx_riwt = hw_if->usec_to_riwt(pdata, ec->rx_coalesce_usecs); 454 rx_usecs = ec->rx_coalesce_usecs; 455 rx_frames = ec->rx_max_coalesced_frames; 456 457 /* Use smallest possible value if conversion resulted in zero */ 458 if (rx_usecs && !rx_riwt) 459 rx_riwt = 1; 460 461 /* Check the bounds of values for Rx */ 462 if (rx_riwt > XGMAC_MAX_DMA_RIWT) { 463 netdev_err(netdev, "rx-usec is limited to %d usecs\n", 464 hw_if->riwt_to_usec(pdata, XGMAC_MAX_DMA_RIWT)); 465 return -EINVAL; 466 } 467 if (rx_frames > pdata->rx_desc_count) { 468 netdev_err(netdev, "rx-frames is limited to %d frames\n", 469 pdata->rx_desc_count); 470 return -EINVAL; 471 } 472 473 tx_frames = ec->tx_max_coalesced_frames; 474 475 /* Check the bounds of values for Tx */ 476 if (tx_frames > pdata->tx_desc_count) { 477 netdev_err(netdev, "tx-frames is limited to %d frames\n", 478 pdata->tx_desc_count); 479 return -EINVAL; 480 } 481 482 pdata->rx_riwt = rx_riwt; 483 pdata->rx_usecs = rx_usecs; 484 pdata->rx_frames = rx_frames; 485 hw_if->config_rx_coalesce(pdata); 486 487 pdata->tx_frames = tx_frames; 488 hw_if->config_tx_coalesce(pdata); 489 490 return 0; 491 } 492 493 static int xgbe_get_rxnfc(struct net_device *netdev, 494 struct ethtool_rxnfc *rxnfc, u32 *rule_locs) 495 { 496 struct xgbe_prv_data *pdata = netdev_priv(netdev); 497 498 switch (rxnfc->cmd) { 499 case ETHTOOL_GRXRINGS: 500 rxnfc->data = pdata->rx_ring_count; 501 break; 502 default: 503 return -EOPNOTSUPP; 504 } 505 506 return 0; 507 } 508 509 static u32 xgbe_get_rxfh_key_size(struct net_device *netdev) 510 { 511 struct xgbe_prv_data *pdata = netdev_priv(netdev); 512 513 return sizeof(pdata->rss_key); 514 } 515 516 static u32 xgbe_get_rxfh_indir_size(struct net_device *netdev) 517 { 518 struct xgbe_prv_data *pdata = netdev_priv(netdev); 519 520 return ARRAY_SIZE(pdata->rss_table); 521 } 522 523 static int xgbe_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 524 u8 *hfunc) 525 { 526 struct xgbe_prv_data *pdata = netdev_priv(netdev); 527 unsigned int i; 528 529 if (indir) { 530 for (i = 0; i < ARRAY_SIZE(pdata->rss_table); i++) 531 indir[i] = XGMAC_GET_BITS(pdata->rss_table[i], 532 MAC_RSSDR, DMCH); 533 } 534 535 if (key) 536 memcpy(key, pdata->rss_key, sizeof(pdata->rss_key)); 537 538 if (hfunc) 539 *hfunc = ETH_RSS_HASH_TOP; 540 541 return 0; 542 } 543 544 static int xgbe_set_rxfh(struct net_device *netdev, const u32 *indir, 545 const u8 *key, const u8 hfunc) 546 { 547 struct xgbe_prv_data *pdata = netdev_priv(netdev); 548 struct xgbe_hw_if *hw_if = &pdata->hw_if; 549 unsigned int ret; 550 551 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) { 552 netdev_err(netdev, "unsupported hash function\n"); 553 return -EOPNOTSUPP; 554 } 555 556 if (indir) { 557 ret = hw_if->set_rss_lookup_table(pdata, indir); 558 if (ret) 559 return ret; 560 } 561 562 if (key) { 563 ret = hw_if->set_rss_hash_key(pdata, key); 564 if (ret) 565 return ret; 566 } 567 568 return 0; 569 } 570 571 static int xgbe_get_ts_info(struct net_device *netdev, 572 struct ethtool_ts_info *ts_info) 573 { 574 struct xgbe_prv_data *pdata = netdev_priv(netdev); 575 576 ts_info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 577 SOF_TIMESTAMPING_RX_SOFTWARE | 578 SOF_TIMESTAMPING_SOFTWARE | 579 SOF_TIMESTAMPING_TX_HARDWARE | 580 SOF_TIMESTAMPING_RX_HARDWARE | 581 SOF_TIMESTAMPING_RAW_HARDWARE; 582 583 if (pdata->ptp_clock) 584 ts_info->phc_index = ptp_clock_index(pdata->ptp_clock); 585 else 586 ts_info->phc_index = -1; 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 xgbe_get_ringparam(struct net_device *netdev, 621 struct ethtool_ringparam *ringparam) 622 { 623 struct xgbe_prv_data *pdata = netdev_priv(netdev); 624 625 ringparam->rx_max_pending = XGBE_RX_DESC_CNT_MAX; 626 ringparam->tx_max_pending = XGBE_TX_DESC_CNT_MAX; 627 ringparam->rx_pending = pdata->rx_desc_count; 628 ringparam->tx_pending = pdata->tx_desc_count; 629 } 630 631 static int xgbe_set_ringparam(struct net_device *netdev, 632 struct ethtool_ringparam *ringparam) 633 { 634 struct xgbe_prv_data *pdata = netdev_priv(netdev); 635 unsigned int rx, tx; 636 637 if (ringparam->rx_mini_pending || ringparam->rx_jumbo_pending) { 638 netdev_err(netdev, "unsupported ring parameter\n"); 639 return -EINVAL; 640 } 641 642 if ((ringparam->rx_pending < XGBE_RX_DESC_CNT_MIN) || 643 (ringparam->rx_pending > XGBE_RX_DESC_CNT_MAX)) { 644 netdev_err(netdev, 645 "rx ring parameter must be between %u and %u\n", 646 XGBE_RX_DESC_CNT_MIN, XGBE_RX_DESC_CNT_MAX); 647 return -EINVAL; 648 } 649 650 if ((ringparam->tx_pending < XGBE_TX_DESC_CNT_MIN) || 651 (ringparam->tx_pending > XGBE_TX_DESC_CNT_MAX)) { 652 netdev_err(netdev, 653 "tx ring parameter must be between %u and %u\n", 654 XGBE_TX_DESC_CNT_MIN, XGBE_TX_DESC_CNT_MAX); 655 return -EINVAL; 656 } 657 658 rx = __rounddown_pow_of_two(ringparam->rx_pending); 659 if (rx != ringparam->rx_pending) 660 netdev_notice(netdev, 661 "rx ring parameter rounded to power of two: %u\n", 662 rx); 663 664 tx = __rounddown_pow_of_two(ringparam->tx_pending); 665 if (tx != ringparam->tx_pending) 666 netdev_notice(netdev, 667 "tx ring parameter rounded to power of two: %u\n", 668 tx); 669 670 if ((rx == pdata->rx_desc_count) && 671 (tx == pdata->tx_desc_count)) 672 goto out; 673 674 pdata->rx_desc_count = rx; 675 pdata->tx_desc_count = tx; 676 677 xgbe_restart_dev(pdata); 678 679 out: 680 return 0; 681 } 682 683 static void xgbe_get_channels(struct net_device *netdev, 684 struct ethtool_channels *channels) 685 { 686 struct xgbe_prv_data *pdata = netdev_priv(netdev); 687 unsigned int rx, tx, combined; 688 689 /* Calculate maximums allowed: 690 * - Take into account the number of available IRQs 691 * - Do not take into account the number of online CPUs so that 692 * the user can over-subscribe if desired 693 * - Tx is additionally limited by the number of hardware queues 694 */ 695 rx = min(pdata->hw_feat.rx_ch_cnt, pdata->rx_max_channel_count); 696 rx = min(rx, pdata->channel_irq_count); 697 tx = min(pdata->hw_feat.tx_ch_cnt, pdata->tx_max_channel_count); 698 tx = min(tx, pdata->channel_irq_count); 699 tx = min(tx, pdata->tx_max_q_count); 700 701 combined = min(rx, tx); 702 703 channels->max_combined = combined; 704 channels->max_rx = rx ? rx - 1 : 0; 705 channels->max_tx = tx ? tx - 1 : 0; 706 707 /* Get current settings based on device state */ 708 rx = pdata->new_rx_ring_count ? : pdata->rx_ring_count; 709 tx = pdata->new_tx_ring_count ? : pdata->tx_ring_count; 710 711 combined = min(rx, tx); 712 rx -= combined; 713 tx -= combined; 714 715 channels->combined_count = combined; 716 channels->rx_count = rx; 717 channels->tx_count = tx; 718 } 719 720 static void xgbe_print_set_channels_input(struct net_device *netdev, 721 struct ethtool_channels *channels) 722 { 723 netdev_err(netdev, "channel inputs: combined=%u, rx-only=%u, tx-only=%u\n", 724 channels->combined_count, channels->rx_count, 725 channels->tx_count); 726 } 727 728 static int xgbe_set_channels(struct net_device *netdev, 729 struct ethtool_channels *channels) 730 { 731 struct xgbe_prv_data *pdata = netdev_priv(netdev); 732 unsigned int rx, rx_curr, tx, tx_curr, combined; 733 734 /* Calculate maximums allowed: 735 * - Take into account the number of available IRQs 736 * - Do not take into account the number of online CPUs so that 737 * the user can over-subscribe if desired 738 * - Tx is additionally limited by the number of hardware queues 739 */ 740 rx = min(pdata->hw_feat.rx_ch_cnt, pdata->rx_max_channel_count); 741 rx = min(rx, pdata->channel_irq_count); 742 tx = min(pdata->hw_feat.tx_ch_cnt, pdata->tx_max_channel_count); 743 tx = min(tx, pdata->tx_max_q_count); 744 tx = min(tx, pdata->channel_irq_count); 745 746 combined = min(rx, tx); 747 748 /* Should not be setting other count */ 749 if (channels->other_count) { 750 netdev_err(netdev, 751 "other channel count must be zero\n"); 752 return -EINVAL; 753 } 754 755 /* Require at least one Combined (Rx and Tx) channel */ 756 if (!channels->combined_count) { 757 netdev_err(netdev, 758 "at least one combined Rx/Tx channel is required\n"); 759 xgbe_print_set_channels_input(netdev, channels); 760 return -EINVAL; 761 } 762 763 /* Check combined channels */ 764 if (channels->combined_count > combined) { 765 netdev_err(netdev, 766 "combined channel count cannot exceed %u\n", 767 combined); 768 xgbe_print_set_channels_input(netdev, channels); 769 return -EINVAL; 770 } 771 772 /* Can have some Rx-only or Tx-only channels, but not both */ 773 if (channels->rx_count && channels->tx_count) { 774 netdev_err(netdev, 775 "cannot specify both Rx-only and Tx-only channels\n"); 776 xgbe_print_set_channels_input(netdev, channels); 777 return -EINVAL; 778 } 779 780 /* Check that we don't exceed the maximum number of channels */ 781 if ((channels->combined_count + channels->rx_count) > rx) { 782 netdev_err(netdev, 783 "total Rx channels (%u) requested exceeds maximum available (%u)\n", 784 channels->combined_count + channels->rx_count, rx); 785 xgbe_print_set_channels_input(netdev, channels); 786 return -EINVAL; 787 } 788 789 if ((channels->combined_count + channels->tx_count) > tx) { 790 netdev_err(netdev, 791 "total Tx channels (%u) requested exceeds maximum available (%u)\n", 792 channels->combined_count + channels->tx_count, tx); 793 xgbe_print_set_channels_input(netdev, channels); 794 return -EINVAL; 795 } 796 797 rx = channels->combined_count + channels->rx_count; 798 tx = channels->combined_count + channels->tx_count; 799 800 rx_curr = pdata->new_rx_ring_count ? : pdata->rx_ring_count; 801 tx_curr = pdata->new_tx_ring_count ? : pdata->tx_ring_count; 802 803 if ((rx == rx_curr) && (tx == tx_curr)) 804 goto out; 805 806 pdata->new_rx_ring_count = rx; 807 pdata->new_tx_ring_count = tx; 808 809 xgbe_full_restart_dev(pdata); 810 811 out: 812 return 0; 813 } 814 815 static const struct ethtool_ops xgbe_ethtool_ops = { 816 .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS | 817 ETHTOOL_COALESCE_MAX_FRAMES, 818 .get_drvinfo = xgbe_get_drvinfo, 819 .get_msglevel = xgbe_get_msglevel, 820 .set_msglevel = xgbe_set_msglevel, 821 .get_link = ethtool_op_get_link, 822 .get_coalesce = xgbe_get_coalesce, 823 .set_coalesce = xgbe_set_coalesce, 824 .get_pauseparam = xgbe_get_pauseparam, 825 .set_pauseparam = xgbe_set_pauseparam, 826 .get_strings = xgbe_get_strings, 827 .get_ethtool_stats = xgbe_get_ethtool_stats, 828 .get_sset_count = xgbe_get_sset_count, 829 .get_rxnfc = xgbe_get_rxnfc, 830 .get_rxfh_key_size = xgbe_get_rxfh_key_size, 831 .get_rxfh_indir_size = xgbe_get_rxfh_indir_size, 832 .get_rxfh = xgbe_get_rxfh, 833 .set_rxfh = xgbe_set_rxfh, 834 .get_ts_info = xgbe_get_ts_info, 835 .get_link_ksettings = xgbe_get_link_ksettings, 836 .set_link_ksettings = xgbe_set_link_ksettings, 837 .get_module_info = xgbe_get_module_info, 838 .get_module_eeprom = xgbe_get_module_eeprom, 839 .get_ringparam = xgbe_get_ringparam, 840 .set_ringparam = xgbe_set_ringparam, 841 .get_channels = xgbe_get_channels, 842 .set_channels = xgbe_set_channels, 843 }; 844 845 const struct ethtool_ops *xgbe_get_ethtool_ops(void) 846 { 847 return &xgbe_ethtool_ops; 848 } 849