1/* 2 * drivers/net/ethernet/freescale/gianfar_ethtool.c 3 * 4 * Gianfar Ethernet Driver 5 * Ethtool support for Gianfar Enet 6 * Based on e1000 ethtool support 7 * 8 * Author: Andy Fleming 9 * Maintainer: Kumar Gala 10 * Modifier: Sandeep Gopalpet <sandeep.kumar@freescale.com> 11 * 12 * Copyright 2003-2006, 2008-2009, 2011 Freescale Semiconductor, Inc. 13 * 14 * This software may be used and distributed according to 15 * the terms of the GNU Public License, Version 2, incorporated herein 16 * by reference. 17 */ 18 19#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 20 21#include <linux/kernel.h> 22#include <linux/string.h> 23#include <linux/errno.h> 24#include <linux/interrupt.h> 25#include <linux/delay.h> 26#include <linux/netdevice.h> 27#include <linux/etherdevice.h> 28#include <linux/net_tstamp.h> 29#include <linux/skbuff.h> 30#include <linux/spinlock.h> 31#include <linux/mm.h> 32 33#include <asm/io.h> 34#include <asm/irq.h> 35#include <asm/uaccess.h> 36#include <linux/module.h> 37#include <linux/crc32.h> 38#include <asm/types.h> 39#include <linux/ethtool.h> 40#include <linux/mii.h> 41#include <linux/phy.h> 42#include <linux/sort.h> 43#include <linux/if_vlan.h> 44 45#include "gianfar.h" 46 47#define GFAR_MAX_COAL_USECS 0xffff 48#define GFAR_MAX_COAL_FRAMES 0xff 49static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, 50 u64 *buf); 51static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf); 52static int gfar_gcoalesce(struct net_device *dev, 53 struct ethtool_coalesce *cvals); 54static int gfar_scoalesce(struct net_device *dev, 55 struct ethtool_coalesce *cvals); 56static void gfar_gringparam(struct net_device *dev, 57 struct ethtool_ringparam *rvals); 58static int gfar_sringparam(struct net_device *dev, 59 struct ethtool_ringparam *rvals); 60static void gfar_gdrvinfo(struct net_device *dev, 61 struct ethtool_drvinfo *drvinfo); 62 63static const char stat_gstrings[][ETH_GSTRING_LEN] = { 64 "rx-large-frame-errors", 65 "rx-short-frame-errors", 66 "rx-non-octet-errors", 67 "rx-crc-errors", 68 "rx-overrun-errors", 69 "rx-busy-errors", 70 "rx-babbling-errors", 71 "rx-truncated-frames", 72 "ethernet-bus-error", 73 "tx-babbling-errors", 74 "tx-underrun-errors", 75 "rx-skb-missing-errors", 76 "tx-timeout-errors", 77 "tx-rx-64-frames", 78 "tx-rx-65-127-frames", 79 "tx-rx-128-255-frames", 80 "tx-rx-256-511-frames", 81 "tx-rx-512-1023-frames", 82 "tx-rx-1024-1518-frames", 83 "tx-rx-1519-1522-good-vlan", 84 "rx-bytes", 85 "rx-packets", 86 "rx-fcs-errors", 87 "receive-multicast-packet", 88 "receive-broadcast-packet", 89 "rx-control-frame-packets", 90 "rx-pause-frame-packets", 91 "rx-unknown-op-code", 92 "rx-alignment-error", 93 "rx-frame-length-error", 94 "rx-code-error", 95 "rx-carrier-sense-error", 96 "rx-undersize-packets", 97 "rx-oversize-packets", 98 "rx-fragmented-frames", 99 "rx-jabber-frames", 100 "rx-dropped-frames", 101 "tx-byte-counter", 102 "tx-packets", 103 "tx-multicast-packets", 104 "tx-broadcast-packets", 105 "tx-pause-control-frames", 106 "tx-deferral-packets", 107 "tx-excessive-deferral-packets", 108 "tx-single-collision-packets", 109 "tx-multiple-collision-packets", 110 "tx-late-collision-packets", 111 "tx-excessive-collision-packets", 112 "tx-total-collision", 113 "reserved", 114 "tx-dropped-frames", 115 "tx-jabber-frames", 116 "tx-fcs-errors", 117 "tx-control-frames", 118 "tx-oversize-frames", 119 "tx-undersize-frames", 120 "tx-fragmented-frames", 121}; 122 123/* Fill in a buffer with the strings which correspond to the 124 * stats */ 125static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf) 126{ 127 struct gfar_private *priv = netdev_priv(dev); 128 129 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) 130 memcpy(buf, stat_gstrings, GFAR_STATS_LEN * ETH_GSTRING_LEN); 131 else 132 memcpy(buf, stat_gstrings, 133 GFAR_EXTRA_STATS_LEN * ETH_GSTRING_LEN); 134} 135 136/* Fill in an array of 64-bit statistics from various sources. 137 * This array will be appended to the end of the ethtool_stats 138 * structure, and returned to user space 139 */ 140static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, 141 u64 *buf) 142{ 143 int i; 144 struct gfar_private *priv = netdev_priv(dev); 145 struct gfar __iomem *regs = priv->gfargrp[0].regs; 146 atomic64_t *extra = (atomic64_t *)&priv->extra_stats; 147 148 for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++) 149 buf[i] = atomic64_read(&extra[i]); 150 151 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) { 152 u32 __iomem *rmon = (u32 __iomem *) ®s->rmon; 153 154 for (; i < GFAR_STATS_LEN; i++, rmon++) 155 buf[i] = (u64) gfar_read(rmon); 156 } 157} 158 159static int gfar_sset_count(struct net_device *dev, int sset) 160{ 161 struct gfar_private *priv = netdev_priv(dev); 162 163 switch (sset) { 164 case ETH_SS_STATS: 165 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) 166 return GFAR_STATS_LEN; 167 else 168 return GFAR_EXTRA_STATS_LEN; 169 default: 170 return -EOPNOTSUPP; 171 } 172} 173 174/* Fills in the drvinfo structure with some basic info */ 175static void gfar_gdrvinfo(struct net_device *dev, 176 struct ethtool_drvinfo *drvinfo) 177{ 178 strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); 179 strlcpy(drvinfo->version, gfar_driver_version, 180 sizeof(drvinfo->version)); 181 strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); 182 strlcpy(drvinfo->bus_info, "N/A", sizeof(drvinfo->bus_info)); 183 drvinfo->regdump_len = 0; 184 drvinfo->eedump_len = 0; 185} 186 187 188static int gfar_ssettings(struct net_device *dev, struct ethtool_cmd *cmd) 189{ 190 struct gfar_private *priv = netdev_priv(dev); 191 struct phy_device *phydev = priv->phydev; 192 193 if (NULL == phydev) 194 return -ENODEV; 195 196 return phy_ethtool_sset(phydev, cmd); 197} 198 199 200/* Return the current settings in the ethtool_cmd structure */ 201static int gfar_gsettings(struct net_device *dev, struct ethtool_cmd *cmd) 202{ 203 struct gfar_private *priv = netdev_priv(dev); 204 struct phy_device *phydev = priv->phydev; 205 struct gfar_priv_rx_q *rx_queue = NULL; 206 struct gfar_priv_tx_q *tx_queue = NULL; 207 208 if (NULL == phydev) 209 return -ENODEV; 210 tx_queue = priv->tx_queue[0]; 211 rx_queue = priv->rx_queue[0]; 212 213 /* etsec-1.7 and older versions have only one txic 214 * and rxic regs although they support multiple queues */ 215 cmd->maxtxpkt = get_icft_value(tx_queue->txic); 216 cmd->maxrxpkt = get_icft_value(rx_queue->rxic); 217 218 return phy_ethtool_gset(phydev, cmd); 219} 220 221/* Return the length of the register structure */ 222static int gfar_reglen(struct net_device *dev) 223{ 224 return sizeof (struct gfar); 225} 226 227/* Return a dump of the GFAR register space */ 228static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs, 229 void *regbuf) 230{ 231 int i; 232 struct gfar_private *priv = netdev_priv(dev); 233 u32 __iomem *theregs = (u32 __iomem *) priv->gfargrp[0].regs; 234 u32 *buf = (u32 *) regbuf; 235 236 for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++) 237 buf[i] = gfar_read(&theregs[i]); 238} 239 240/* Convert microseconds to ethernet clock ticks, which changes 241 * depending on what speed the controller is running at */ 242static unsigned int gfar_usecs2ticks(struct gfar_private *priv, 243 unsigned int usecs) 244{ 245 unsigned int count; 246 247 /* The timer is different, depending on the interface speed */ 248 switch (priv->phydev->speed) { 249 case SPEED_1000: 250 count = GFAR_GBIT_TIME; 251 break; 252 case SPEED_100: 253 count = GFAR_100_TIME; 254 break; 255 case SPEED_10: 256 default: 257 count = GFAR_10_TIME; 258 break; 259 } 260 261 /* Make sure we return a number greater than 0 262 * if usecs > 0 */ 263 return (usecs * 1000 + count - 1) / count; 264} 265 266/* Convert ethernet clock ticks to microseconds */ 267static unsigned int gfar_ticks2usecs(struct gfar_private *priv, 268 unsigned int ticks) 269{ 270 unsigned int count; 271 272 /* The timer is different, depending on the interface speed */ 273 switch (priv->phydev->speed) { 274 case SPEED_1000: 275 count = GFAR_GBIT_TIME; 276 break; 277 case SPEED_100: 278 count = GFAR_100_TIME; 279 break; 280 case SPEED_10: 281 default: 282 count = GFAR_10_TIME; 283 break; 284 } 285 286 /* Make sure we return a number greater than 0 */ 287 /* if ticks is > 0 */ 288 return (ticks * count) / 1000; 289} 290 291/* Get the coalescing parameters, and put them in the cvals 292 * structure. */ 293static int gfar_gcoalesce(struct net_device *dev, 294 struct ethtool_coalesce *cvals) 295{ 296 struct gfar_private *priv = netdev_priv(dev); 297 struct gfar_priv_rx_q *rx_queue = NULL; 298 struct gfar_priv_tx_q *tx_queue = NULL; 299 unsigned long rxtime; 300 unsigned long rxcount; 301 unsigned long txtime; 302 unsigned long txcount; 303 304 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE)) 305 return -EOPNOTSUPP; 306 307 if (NULL == priv->phydev) 308 return -ENODEV; 309 310 rx_queue = priv->rx_queue[0]; 311 tx_queue = priv->tx_queue[0]; 312 313 rxtime = get_ictt_value(rx_queue->rxic); 314 rxcount = get_icft_value(rx_queue->rxic); 315 txtime = get_ictt_value(tx_queue->txic); 316 txcount = get_icft_value(tx_queue->txic); 317 cvals->rx_coalesce_usecs = gfar_ticks2usecs(priv, rxtime); 318 cvals->rx_max_coalesced_frames = rxcount; 319 320 cvals->tx_coalesce_usecs = gfar_ticks2usecs(priv, txtime); 321 cvals->tx_max_coalesced_frames = txcount; 322 323 cvals->use_adaptive_rx_coalesce = 0; 324 cvals->use_adaptive_tx_coalesce = 0; 325 326 cvals->pkt_rate_low = 0; 327 cvals->rx_coalesce_usecs_low = 0; 328 cvals->rx_max_coalesced_frames_low = 0; 329 cvals->tx_coalesce_usecs_low = 0; 330 cvals->tx_max_coalesced_frames_low = 0; 331 332 /* When the packet rate is below pkt_rate_high but above 333 * pkt_rate_low (both measured in packets per second) the 334 * normal {rx,tx}_* coalescing parameters are used. 335 */ 336 337 /* When the packet rate is (measured in packets per second) 338 * is above pkt_rate_high, the {rx,tx}_*_high parameters are 339 * used. 340 */ 341 cvals->pkt_rate_high = 0; 342 cvals->rx_coalesce_usecs_high = 0; 343 cvals->rx_max_coalesced_frames_high = 0; 344 cvals->tx_coalesce_usecs_high = 0; 345 cvals->tx_max_coalesced_frames_high = 0; 346 347 /* How often to do adaptive coalescing packet rate sampling, 348 * measured in seconds. Must not be zero. 349 */ 350 cvals->rate_sample_interval = 0; 351 352 return 0; 353} 354 355/* Change the coalescing values. 356 * Both cvals->*_usecs and cvals->*_frames have to be > 0 357 * in order for coalescing to be active 358 */ 359static int gfar_scoalesce(struct net_device *dev, 360 struct ethtool_coalesce *cvals) 361{ 362 struct gfar_private *priv = netdev_priv(dev); 363 int i, err = 0; 364 365 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE)) 366 return -EOPNOTSUPP; 367 368 if (NULL == priv->phydev) 369 return -ENODEV; 370 371 /* Check the bounds of the values */ 372 if (cvals->rx_coalesce_usecs > GFAR_MAX_COAL_USECS) { 373 netdev_info(dev, "Coalescing is limited to %d microseconds\n", 374 GFAR_MAX_COAL_USECS); 375 return -EINVAL; 376 } 377 378 if (cvals->rx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) { 379 netdev_info(dev, "Coalescing is limited to %d frames\n", 380 GFAR_MAX_COAL_FRAMES); 381 return -EINVAL; 382 } 383 384 /* Check the bounds of the values */ 385 if (cvals->tx_coalesce_usecs > GFAR_MAX_COAL_USECS) { 386 netdev_info(dev, "Coalescing is limited to %d microseconds\n", 387 GFAR_MAX_COAL_USECS); 388 return -EINVAL; 389 } 390 391 if (cvals->tx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) { 392 netdev_info(dev, "Coalescing is limited to %d frames\n", 393 GFAR_MAX_COAL_FRAMES); 394 return -EINVAL; 395 } 396 397 while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state)) 398 cpu_relax(); 399 400 /* Set up rx coalescing */ 401 if ((cvals->rx_coalesce_usecs == 0) || 402 (cvals->rx_max_coalesced_frames == 0)) { 403 for (i = 0; i < priv->num_rx_queues; i++) 404 priv->rx_queue[i]->rxcoalescing = 0; 405 } else { 406 for (i = 0; i < priv->num_rx_queues; i++) 407 priv->rx_queue[i]->rxcoalescing = 1; 408 } 409 410 for (i = 0; i < priv->num_rx_queues; i++) { 411 priv->rx_queue[i]->rxic = mk_ic_value( 412 cvals->rx_max_coalesced_frames, 413 gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs)); 414 } 415 416 /* Set up tx coalescing */ 417 if ((cvals->tx_coalesce_usecs == 0) || 418 (cvals->tx_max_coalesced_frames == 0)) { 419 for (i = 0; i < priv->num_tx_queues; i++) 420 priv->tx_queue[i]->txcoalescing = 0; 421 } else { 422 for (i = 0; i < priv->num_tx_queues; i++) 423 priv->tx_queue[i]->txcoalescing = 1; 424 } 425 426 for (i = 0; i < priv->num_tx_queues; i++) { 427 priv->tx_queue[i]->txic = mk_ic_value( 428 cvals->tx_max_coalesced_frames, 429 gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs)); 430 } 431 432 if (dev->flags & IFF_UP) { 433 stop_gfar(dev); 434 err = startup_gfar(dev); 435 } else { 436 gfar_mac_reset(priv); 437 } 438 439 clear_bit_unlock(GFAR_RESETTING, &priv->state); 440 441 return err; 442} 443 444/* Fills in rvals with the current ring parameters. Currently, 445 * rx, rx_mini, and rx_jumbo rings are the same size, as mini and 446 * jumbo are ignored by the driver */ 447static void gfar_gringparam(struct net_device *dev, 448 struct ethtool_ringparam *rvals) 449{ 450 struct gfar_private *priv = netdev_priv(dev); 451 struct gfar_priv_tx_q *tx_queue = NULL; 452 struct gfar_priv_rx_q *rx_queue = NULL; 453 454 tx_queue = priv->tx_queue[0]; 455 rx_queue = priv->rx_queue[0]; 456 457 rvals->rx_max_pending = GFAR_RX_MAX_RING_SIZE; 458 rvals->rx_mini_max_pending = GFAR_RX_MAX_RING_SIZE; 459 rvals->rx_jumbo_max_pending = GFAR_RX_MAX_RING_SIZE; 460 rvals->tx_max_pending = GFAR_TX_MAX_RING_SIZE; 461 462 /* Values changeable by the user. The valid values are 463 * in the range 1 to the "*_max_pending" counterpart above. 464 */ 465 rvals->rx_pending = rx_queue->rx_ring_size; 466 rvals->rx_mini_pending = rx_queue->rx_ring_size; 467 rvals->rx_jumbo_pending = rx_queue->rx_ring_size; 468 rvals->tx_pending = tx_queue->tx_ring_size; 469} 470 471/* Change the current ring parameters, stopping the controller if 472 * necessary so that we don't mess things up while we're in motion. 473 */ 474static int gfar_sringparam(struct net_device *dev, 475 struct ethtool_ringparam *rvals) 476{ 477 struct gfar_private *priv = netdev_priv(dev); 478 int err = 0, i; 479 480 if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE) 481 return -EINVAL; 482 483 if (!is_power_of_2(rvals->rx_pending)) { 484 netdev_err(dev, "Ring sizes must be a power of 2\n"); 485 return -EINVAL; 486 } 487 488 if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE) 489 return -EINVAL; 490 491 if (!is_power_of_2(rvals->tx_pending)) { 492 netdev_err(dev, "Ring sizes must be a power of 2\n"); 493 return -EINVAL; 494 } 495 496 while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state)) 497 cpu_relax(); 498 499 if (dev->flags & IFF_UP) 500 stop_gfar(dev); 501 502 /* Change the sizes */ 503 for (i = 0; i < priv->num_rx_queues; i++) 504 priv->rx_queue[i]->rx_ring_size = rvals->rx_pending; 505 506 for (i = 0; i < priv->num_tx_queues; i++) 507 priv->tx_queue[i]->tx_ring_size = rvals->tx_pending; 508 509 /* Rebuild the rings with the new size */ 510 if (dev->flags & IFF_UP) 511 err = startup_gfar(dev); 512 513 clear_bit_unlock(GFAR_RESETTING, &priv->state); 514 515 return err; 516} 517 518static void gfar_gpauseparam(struct net_device *dev, 519 struct ethtool_pauseparam *epause) 520{ 521 struct gfar_private *priv = netdev_priv(dev); 522 523 epause->autoneg = !!priv->pause_aneg_en; 524 epause->rx_pause = !!priv->rx_pause_en; 525 epause->tx_pause = !!priv->tx_pause_en; 526} 527 528static int gfar_spauseparam(struct net_device *dev, 529 struct ethtool_pauseparam *epause) 530{ 531 struct gfar_private *priv = netdev_priv(dev); 532 struct phy_device *phydev = priv->phydev; 533 struct gfar __iomem *regs = priv->gfargrp[0].regs; 534 u32 oldadv, newadv; 535 536 if (!phydev) 537 return -ENODEV; 538 539 if (!(phydev->supported & SUPPORTED_Pause) || 540 (!(phydev->supported & SUPPORTED_Asym_Pause) && 541 (epause->rx_pause != epause->tx_pause))) 542 return -EINVAL; 543 544 priv->rx_pause_en = priv->tx_pause_en = 0; 545 if (epause->rx_pause) { 546 priv->rx_pause_en = 1; 547 548 if (epause->tx_pause) { 549 priv->tx_pause_en = 1; 550 /* FLOW_CTRL_RX & TX */ 551 newadv = ADVERTISED_Pause; 552 } else /* FLOW_CTLR_RX */ 553 newadv = ADVERTISED_Pause | ADVERTISED_Asym_Pause; 554 } else if (epause->tx_pause) { 555 priv->tx_pause_en = 1; 556 /* FLOW_CTLR_TX */ 557 newadv = ADVERTISED_Asym_Pause; 558 } else 559 newadv = 0; 560 561 if (epause->autoneg) 562 priv->pause_aneg_en = 1; 563 else 564 priv->pause_aneg_en = 0; 565 566 oldadv = phydev->advertising & 567 (ADVERTISED_Pause | ADVERTISED_Asym_Pause); 568 if (oldadv != newadv) { 569 phydev->advertising &= 570 ~(ADVERTISED_Pause | ADVERTISED_Asym_Pause); 571 phydev->advertising |= newadv; 572 if (phydev->autoneg) 573 /* inform link partner of our 574 * new flow ctrl settings 575 */ 576 return phy_start_aneg(phydev); 577 578 if (!epause->autoneg) { 579 u32 tempval; 580 tempval = gfar_read(®s->maccfg1); 581 tempval &= ~(MACCFG1_TX_FLOW | MACCFG1_RX_FLOW); 582 583 priv->tx_actual_en = 0; 584 if (priv->tx_pause_en) { 585 priv->tx_actual_en = 1; 586 tempval |= MACCFG1_TX_FLOW; 587 } 588 589 if (priv->rx_pause_en) 590 tempval |= MACCFG1_RX_FLOW; 591 gfar_write(®s->maccfg1, tempval); 592 } 593 } 594 595 return 0; 596} 597 598int gfar_set_features(struct net_device *dev, netdev_features_t features) 599{ 600 netdev_features_t changed = dev->features ^ features; 601 struct gfar_private *priv = netdev_priv(dev); 602 int err = 0; 603 604 if (!(changed & (NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX | 605 NETIF_F_RXCSUM))) 606 return 0; 607 608 while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state)) 609 cpu_relax(); 610 611 dev->features = features; 612 613 if (dev->flags & IFF_UP) { 614 /* Now we take down the rings to rebuild them */ 615 stop_gfar(dev); 616 err = startup_gfar(dev); 617 } else { 618 gfar_mac_reset(priv); 619 } 620 621 clear_bit_unlock(GFAR_RESETTING, &priv->state); 622 623 return err; 624} 625 626static uint32_t gfar_get_msglevel(struct net_device *dev) 627{ 628 struct gfar_private *priv = netdev_priv(dev); 629 630 return priv->msg_enable; 631} 632 633static void gfar_set_msglevel(struct net_device *dev, uint32_t data) 634{ 635 struct gfar_private *priv = netdev_priv(dev); 636 637 priv->msg_enable = data; 638} 639 640#ifdef CONFIG_PM 641static void gfar_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) 642{ 643 struct gfar_private *priv = netdev_priv(dev); 644 645 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) { 646 wol->supported = WAKE_MAGIC; 647 wol->wolopts = priv->wol_en ? WAKE_MAGIC : 0; 648 } else { 649 wol->supported = wol->wolopts = 0; 650 } 651} 652 653static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) 654{ 655 struct gfar_private *priv = netdev_priv(dev); 656 unsigned long flags; 657 658 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) && 659 wol->wolopts != 0) 660 return -EINVAL; 661 662 if (wol->wolopts & ~WAKE_MAGIC) 663 return -EINVAL; 664 665 device_set_wakeup_enable(&dev->dev, wol->wolopts & WAKE_MAGIC); 666 667 spin_lock_irqsave(&priv->bflock, flags); 668 priv->wol_en = !!device_may_wakeup(&dev->dev); 669 spin_unlock_irqrestore(&priv->bflock, flags); 670 671 return 0; 672} 673#endif 674 675static void ethflow_to_filer_rules (struct gfar_private *priv, u64 ethflow) 676{ 677 u32 fcr = 0x0, fpr = FPR_FILER_MASK; 678 679 if (ethflow & RXH_L2DA) { 680 fcr = RQFCR_PID_DAH |RQFCR_CMP_NOMATCH | 681 RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0; 682 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 683 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 684 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 685 priv->cur_filer_idx = priv->cur_filer_idx - 1; 686 687 fcr = RQFCR_PID_DAL | RQFCR_AND | RQFCR_CMP_NOMATCH | 688 RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0; 689 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 690 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 691 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 692 priv->cur_filer_idx = priv->cur_filer_idx - 1; 693 } 694 695 if (ethflow & RXH_VLAN) { 696 fcr = RQFCR_PID_VID | RQFCR_CMP_NOMATCH | RQFCR_HASH | 697 RQFCR_AND | RQFCR_HASHTBL_0; 698 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 699 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 700 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 701 priv->cur_filer_idx = priv->cur_filer_idx - 1; 702 } 703 704 if (ethflow & RXH_IP_SRC) { 705 fcr = RQFCR_PID_SIA | RQFCR_CMP_NOMATCH | RQFCR_HASH | 706 RQFCR_AND | RQFCR_HASHTBL_0; 707 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 708 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 709 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 710 priv->cur_filer_idx = priv->cur_filer_idx - 1; 711 } 712 713 if (ethflow & (RXH_IP_DST)) { 714 fcr = RQFCR_PID_DIA | RQFCR_CMP_NOMATCH | RQFCR_HASH | 715 RQFCR_AND | RQFCR_HASHTBL_0; 716 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 717 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 718 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 719 priv->cur_filer_idx = priv->cur_filer_idx - 1; 720 } 721 722 if (ethflow & RXH_L3_PROTO) { 723 fcr = RQFCR_PID_L4P | RQFCR_CMP_NOMATCH | RQFCR_HASH | 724 RQFCR_AND | RQFCR_HASHTBL_0; 725 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 726 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 727 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 728 priv->cur_filer_idx = priv->cur_filer_idx - 1; 729 } 730 731 if (ethflow & RXH_L4_B_0_1) { 732 fcr = RQFCR_PID_SPT | RQFCR_CMP_NOMATCH | RQFCR_HASH | 733 RQFCR_AND | RQFCR_HASHTBL_0; 734 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 735 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 736 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 737 priv->cur_filer_idx = priv->cur_filer_idx - 1; 738 } 739 740 if (ethflow & RXH_L4_B_2_3) { 741 fcr = RQFCR_PID_DPT | RQFCR_CMP_NOMATCH | RQFCR_HASH | 742 RQFCR_AND | RQFCR_HASHTBL_0; 743 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 744 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 745 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 746 priv->cur_filer_idx = priv->cur_filer_idx - 1; 747 } 748} 749 750static int gfar_ethflow_to_filer_table(struct gfar_private *priv, u64 ethflow, 751 u64 class) 752{ 753 unsigned int last_rule_idx = priv->cur_filer_idx; 754 unsigned int cmp_rqfpr; 755 unsigned int *local_rqfpr; 756 unsigned int *local_rqfcr; 757 int i = 0x0, k = 0x0; 758 int j = MAX_FILER_IDX, l = 0x0; 759 int ret = 1; 760 761 local_rqfpr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int), 762 GFP_KERNEL); 763 local_rqfcr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int), 764 GFP_KERNEL); 765 if (!local_rqfpr || !local_rqfcr) { 766 ret = 0; 767 goto err; 768 } 769 770 switch (class) { 771 case TCP_V4_FLOW: 772 cmp_rqfpr = RQFPR_IPV4 |RQFPR_TCP; 773 break; 774 case UDP_V4_FLOW: 775 cmp_rqfpr = RQFPR_IPV4 |RQFPR_UDP; 776 break; 777 case TCP_V6_FLOW: 778 cmp_rqfpr = RQFPR_IPV6 |RQFPR_TCP; 779 break; 780 case UDP_V6_FLOW: 781 cmp_rqfpr = RQFPR_IPV6 |RQFPR_UDP; 782 break; 783 default: 784 netdev_err(priv->ndev, 785 "Right now this class is not supported\n"); 786 ret = 0; 787 goto err; 788 } 789 790 for (i = 0; i < MAX_FILER_IDX + 1; i++) { 791 local_rqfpr[j] = priv->ftp_rqfpr[i]; 792 local_rqfcr[j] = priv->ftp_rqfcr[i]; 793 j--; 794 if ((priv->ftp_rqfcr[i] == 795 (RQFCR_PID_PARSE | RQFCR_CLE | RQFCR_AND)) && 796 (priv->ftp_rqfpr[i] == cmp_rqfpr)) 797 break; 798 } 799 800 if (i == MAX_FILER_IDX + 1) { 801 netdev_err(priv->ndev, 802 "No parse rule found, can't create hash rules\n"); 803 ret = 0; 804 goto err; 805 } 806 807 /* If a match was found, then it begins the starting of a cluster rule 808 * if it was already programmed, we need to overwrite these rules 809 */ 810 for (l = i+1; l < MAX_FILER_IDX; l++) { 811 if ((priv->ftp_rqfcr[l] & RQFCR_CLE) && 812 !(priv->ftp_rqfcr[l] & RQFCR_AND)) { 813 priv->ftp_rqfcr[l] = RQFCR_CLE | RQFCR_CMP_EXACT | 814 RQFCR_HASHTBL_0 | RQFCR_PID_MASK; 815 priv->ftp_rqfpr[l] = FPR_FILER_MASK; 816 gfar_write_filer(priv, l, priv->ftp_rqfcr[l], 817 priv->ftp_rqfpr[l]); 818 break; 819 } 820 821 if (!(priv->ftp_rqfcr[l] & RQFCR_CLE) && 822 (priv->ftp_rqfcr[l] & RQFCR_AND)) 823 continue; 824 else { 825 local_rqfpr[j] = priv->ftp_rqfpr[l]; 826 local_rqfcr[j] = priv->ftp_rqfcr[l]; 827 j--; 828 } 829 } 830 831 priv->cur_filer_idx = l - 1; 832 last_rule_idx = l; 833 834 /* hash rules */ 835 ethflow_to_filer_rules(priv, ethflow); 836 837 /* Write back the popped out rules again */ 838 for (k = j+1; k < MAX_FILER_IDX; k++) { 839 priv->ftp_rqfpr[priv->cur_filer_idx] = local_rqfpr[k]; 840 priv->ftp_rqfcr[priv->cur_filer_idx] = local_rqfcr[k]; 841 gfar_write_filer(priv, priv->cur_filer_idx, 842 local_rqfcr[k], local_rqfpr[k]); 843 if (!priv->cur_filer_idx) 844 break; 845 priv->cur_filer_idx = priv->cur_filer_idx - 1; 846 } 847 848err: 849 kfree(local_rqfcr); 850 kfree(local_rqfpr); 851 return ret; 852} 853 854static int gfar_set_hash_opts(struct gfar_private *priv, 855 struct ethtool_rxnfc *cmd) 856{ 857 /* write the filer rules here */ 858 if (!gfar_ethflow_to_filer_table(priv, cmd->data, cmd->flow_type)) 859 return -EINVAL; 860 861 return 0; 862} 863 864static int gfar_check_filer_hardware(struct gfar_private *priv) 865{ 866 struct gfar __iomem *regs = priv->gfargrp[0].regs; 867 u32 i; 868 869 /* Check if we are in FIFO mode */ 870 i = gfar_read(®s->ecntrl); 871 i &= ECNTRL_FIFM; 872 if (i == ECNTRL_FIFM) { 873 netdev_notice(priv->ndev, "Interface in FIFO mode\n"); 874 i = gfar_read(®s->rctrl); 875 i &= RCTRL_PRSDEP_MASK | RCTRL_PRSFM; 876 if (i == (RCTRL_PRSDEP_MASK | RCTRL_PRSFM)) { 877 netdev_info(priv->ndev, 878 "Receive Queue Filtering enabled\n"); 879 } else { 880 netdev_warn(priv->ndev, 881 "Receive Queue Filtering disabled\n"); 882 return -EOPNOTSUPP; 883 } 884 } 885 /* Or in standard mode */ 886 else { 887 i = gfar_read(®s->rctrl); 888 i &= RCTRL_PRSDEP_MASK; 889 if (i == RCTRL_PRSDEP_MASK) { 890 netdev_info(priv->ndev, 891 "Receive Queue Filtering enabled\n"); 892 } else { 893 netdev_warn(priv->ndev, 894 "Receive Queue Filtering disabled\n"); 895 return -EOPNOTSUPP; 896 } 897 } 898 899 /* Sets the properties for arbitrary filer rule 900 * to the first 4 Layer 4 Bytes 901 */ 902 gfar_write(®s->rbifx, 0xC0C1C2C3); 903 return 0; 904} 905 906static int gfar_comp_asc(const void *a, const void *b) 907{ 908 return memcmp(a, b, 4); 909} 910 911static int gfar_comp_desc(const void *a, const void *b) 912{ 913 return -memcmp(a, b, 4); 914} 915 916static void gfar_swap(void *a, void *b, int size) 917{ 918 u32 *_a = a; 919 u32 *_b = b; 920 921 swap(_a[0], _b[0]); 922 swap(_a[1], _b[1]); 923 swap(_a[2], _b[2]); 924 swap(_a[3], _b[3]); 925} 926 927/* Write a mask to filer cache */ 928static void gfar_set_mask(u32 mask, struct filer_table *tab) 929{ 930 tab->fe[tab->index].ctrl = RQFCR_AND | RQFCR_PID_MASK | RQFCR_CMP_EXACT; 931 tab->fe[tab->index].prop = mask; 932 tab->index++; 933} 934 935/* Sets parse bits (e.g. IP or TCP) */ 936static void gfar_set_parse_bits(u32 value, u32 mask, struct filer_table *tab) 937{ 938 gfar_set_mask(mask, tab); 939 tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_PID_PARSE | 940 RQFCR_AND; 941 tab->fe[tab->index].prop = value; 942 tab->index++; 943} 944 945static void gfar_set_general_attribute(u32 value, u32 mask, u32 flag, 946 struct filer_table *tab) 947{ 948 gfar_set_mask(mask, tab); 949 tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_AND | flag; 950 tab->fe[tab->index].prop = value; 951 tab->index++; 952} 953 954/* For setting a tuple of value and mask of type flag 955 * Example: 956 * IP-Src = 10.0.0.0/255.0.0.0 957 * value: 0x0A000000 mask: FF000000 flag: RQFPR_IPV4 958 * 959 * Ethtool gives us a value=0 and mask=~0 for don't care a tuple 960 * For a don't care mask it gives us a 0 961 * 962 * The check if don't care and the mask adjustment if mask=0 is done for VLAN 963 * and MAC stuff on an upper level (due to missing information on this level). 964 * For these guys we can discard them if they are value=0 and mask=0. 965 * 966 * Further the all masks are one-padded for better hardware efficiency. 967 */ 968static void gfar_set_attribute(u32 value, u32 mask, u32 flag, 969 struct filer_table *tab) 970{ 971 switch (flag) { 972 /* 3bit */ 973 case RQFCR_PID_PRI: 974 if (!(value | mask)) 975 return; 976 mask |= RQFCR_PID_PRI_MASK; 977 break; 978 /* 8bit */ 979 case RQFCR_PID_L4P: 980 case RQFCR_PID_TOS: 981 if (!~(mask | RQFCR_PID_L4P_MASK)) 982 return; 983 if (!mask) 984 mask = ~0; 985 else 986 mask |= RQFCR_PID_L4P_MASK; 987 break; 988 /* 12bit */ 989 case RQFCR_PID_VID: 990 if (!(value | mask)) 991 return; 992 mask |= RQFCR_PID_VID_MASK; 993 break; 994 /* 16bit */ 995 case RQFCR_PID_DPT: 996 case RQFCR_PID_SPT: 997 case RQFCR_PID_ETY: 998 if (!~(mask | RQFCR_PID_PORT_MASK)) 999 return; 1000 if (!mask) 1001 mask = ~0; 1002 else 1003 mask |= RQFCR_PID_PORT_MASK; 1004 break; 1005 /* 24bit */ 1006 case RQFCR_PID_DAH: 1007 case RQFCR_PID_DAL: 1008 case RQFCR_PID_SAH: 1009 case RQFCR_PID_SAL: 1010 if (!(value | mask)) 1011 return; 1012 mask |= RQFCR_PID_MAC_MASK; 1013 break; 1014 /* for all real 32bit masks */ 1015 default: 1016 if (!~mask) 1017 return; 1018 if (!mask) 1019 mask = ~0; 1020 break; 1021 } 1022 gfar_set_general_attribute(value, mask, flag, tab); 1023} 1024 1025/* Translates value and mask for UDP, TCP or SCTP */ 1026static void gfar_set_basic_ip(struct ethtool_tcpip4_spec *value, 1027 struct ethtool_tcpip4_spec *mask, 1028 struct filer_table *tab) 1029{ 1030 gfar_set_attribute(be32_to_cpu(value->ip4src), 1031 be32_to_cpu(mask->ip4src), 1032 RQFCR_PID_SIA, tab); 1033 gfar_set_attribute(be32_to_cpu(value->ip4dst), 1034 be32_to_cpu(mask->ip4dst), 1035 RQFCR_PID_DIA, tab); 1036 gfar_set_attribute(be16_to_cpu(value->pdst), 1037 be16_to_cpu(mask->pdst), 1038 RQFCR_PID_DPT, tab); 1039 gfar_set_attribute(be16_to_cpu(value->psrc), 1040 be16_to_cpu(mask->psrc), 1041 RQFCR_PID_SPT, tab); 1042 gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab); 1043} 1044 1045/* Translates value and mask for RAW-IP4 */ 1046static void gfar_set_user_ip(struct ethtool_usrip4_spec *value, 1047 struct ethtool_usrip4_spec *mask, 1048 struct filer_table *tab) 1049{ 1050 gfar_set_attribute(be32_to_cpu(value->ip4src), 1051 be32_to_cpu(mask->ip4src), 1052 RQFCR_PID_SIA, tab); 1053 gfar_set_attribute(be32_to_cpu(value->ip4dst), 1054 be32_to_cpu(mask->ip4dst), 1055 RQFCR_PID_DIA, tab); 1056 gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab); 1057 gfar_set_attribute(value->proto, mask->proto, RQFCR_PID_L4P, tab); 1058 gfar_set_attribute(be32_to_cpu(value->l4_4_bytes), 1059 be32_to_cpu(mask->l4_4_bytes), 1060 RQFCR_PID_ARB, tab); 1061 1062} 1063 1064/* Translates value and mask for ETHER spec */ 1065static void gfar_set_ether(struct ethhdr *value, struct ethhdr *mask, 1066 struct filer_table *tab) 1067{ 1068 u32 upper_temp_mask = 0; 1069 u32 lower_temp_mask = 0; 1070 1071 /* Source address */ 1072 if (!is_broadcast_ether_addr(mask->h_source)) { 1073 if (is_zero_ether_addr(mask->h_source)) { 1074 upper_temp_mask = 0xFFFFFFFF; 1075 lower_temp_mask = 0xFFFFFFFF; 1076 } else { 1077 upper_temp_mask = mask->h_source[0] << 16 | 1078 mask->h_source[1] << 8 | 1079 mask->h_source[2]; 1080 lower_temp_mask = mask->h_source[3] << 16 | 1081 mask->h_source[4] << 8 | 1082 mask->h_source[5]; 1083 } 1084 /* Upper 24bit */ 1085 gfar_set_attribute(value->h_source[0] << 16 | 1086 value->h_source[1] << 8 | 1087 value->h_source[2], 1088 upper_temp_mask, RQFCR_PID_SAH, tab); 1089 /* And the same for the lower part */ 1090 gfar_set_attribute(value->h_source[3] << 16 | 1091 value->h_source[4] << 8 | 1092 value->h_source[5], 1093 lower_temp_mask, RQFCR_PID_SAL, tab); 1094 } 1095 /* Destination address */ 1096 if (!is_broadcast_ether_addr(mask->h_dest)) { 1097 /* Special for destination is limited broadcast */ 1098 if ((is_broadcast_ether_addr(value->h_dest) && 1099 is_zero_ether_addr(mask->h_dest))) { 1100 gfar_set_parse_bits(RQFPR_EBC, RQFPR_EBC, tab); 1101 } else { 1102 if (is_zero_ether_addr(mask->h_dest)) { 1103 upper_temp_mask = 0xFFFFFFFF; 1104 lower_temp_mask = 0xFFFFFFFF; 1105 } else { 1106 upper_temp_mask = mask->h_dest[0] << 16 | 1107 mask->h_dest[1] << 8 | 1108 mask->h_dest[2]; 1109 lower_temp_mask = mask->h_dest[3] << 16 | 1110 mask->h_dest[4] << 8 | 1111 mask->h_dest[5]; 1112 } 1113 1114 /* Upper 24bit */ 1115 gfar_set_attribute(value->h_dest[0] << 16 | 1116 value->h_dest[1] << 8 | 1117 value->h_dest[2], 1118 upper_temp_mask, RQFCR_PID_DAH, tab); 1119 /* And the same for the lower part */ 1120 gfar_set_attribute(value->h_dest[3] << 16 | 1121 value->h_dest[4] << 8 | 1122 value->h_dest[5], 1123 lower_temp_mask, RQFCR_PID_DAL, tab); 1124 } 1125 } 1126 1127 gfar_set_attribute(be16_to_cpu(value->h_proto), 1128 be16_to_cpu(mask->h_proto), 1129 RQFCR_PID_ETY, tab); 1130} 1131 1132static inline u32 vlan_tci_vid(struct ethtool_rx_flow_spec *rule) 1133{ 1134 return be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_VID_MASK; 1135} 1136 1137static inline u32 vlan_tci_vidm(struct ethtool_rx_flow_spec *rule) 1138{ 1139 return be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_VID_MASK; 1140} 1141 1142static inline u32 vlan_tci_cfi(struct ethtool_rx_flow_spec *rule) 1143{ 1144 return be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_CFI_MASK; 1145} 1146 1147static inline u32 vlan_tci_cfim(struct ethtool_rx_flow_spec *rule) 1148{ 1149 return be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_CFI_MASK; 1150} 1151 1152static inline u32 vlan_tci_prio(struct ethtool_rx_flow_spec *rule) 1153{ 1154 return (be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_PRIO_MASK) >> 1155 VLAN_PRIO_SHIFT; 1156} 1157 1158static inline u32 vlan_tci_priom(struct ethtool_rx_flow_spec *rule) 1159{ 1160 return (be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_PRIO_MASK) >> 1161 VLAN_PRIO_SHIFT; 1162} 1163 1164/* Convert a rule to binary filter format of gianfar */ 1165static int gfar_convert_to_filer(struct ethtool_rx_flow_spec *rule, 1166 struct filer_table *tab) 1167{ 1168 u32 vlan = 0, vlan_mask = 0; 1169 u32 id = 0, id_mask = 0; 1170 u32 cfi = 0, cfi_mask = 0; 1171 u32 prio = 0, prio_mask = 0; 1172 u32 old_index = tab->index; 1173 1174 /* Check if vlan is wanted */ 1175 if ((rule->flow_type & FLOW_EXT) && 1176 (rule->m_ext.vlan_tci != cpu_to_be16(0xFFFF))) { 1177 if (!rule->m_ext.vlan_tci) 1178 rule->m_ext.vlan_tci = cpu_to_be16(0xFFFF); 1179 1180 vlan = RQFPR_VLN; 1181 vlan_mask = RQFPR_VLN; 1182 1183 /* Separate the fields */ 1184 id = vlan_tci_vid(rule); 1185 id_mask = vlan_tci_vidm(rule); 1186 cfi = vlan_tci_cfi(rule); 1187 cfi_mask = vlan_tci_cfim(rule); 1188 prio = vlan_tci_prio(rule); 1189 prio_mask = vlan_tci_priom(rule); 1190 1191 if (cfi == VLAN_TAG_PRESENT && cfi_mask == VLAN_TAG_PRESENT) { 1192 vlan |= RQFPR_CFI; 1193 vlan_mask |= RQFPR_CFI; 1194 } else if (cfi != VLAN_TAG_PRESENT && 1195 cfi_mask == VLAN_TAG_PRESENT) { 1196 vlan_mask |= RQFPR_CFI; 1197 } 1198 } 1199 1200 switch (rule->flow_type & ~FLOW_EXT) { 1201 case TCP_V4_FLOW: 1202 gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_TCP | vlan, 1203 RQFPR_IPV4 | RQFPR_TCP | vlan_mask, tab); 1204 gfar_set_basic_ip(&rule->h_u.tcp_ip4_spec, 1205 &rule->m_u.tcp_ip4_spec, tab); 1206 break; 1207 case UDP_V4_FLOW: 1208 gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_UDP | vlan, 1209 RQFPR_IPV4 | RQFPR_UDP | vlan_mask, tab); 1210 gfar_set_basic_ip(&rule->h_u.udp_ip4_spec, 1211 &rule->m_u.udp_ip4_spec, tab); 1212 break; 1213 case SCTP_V4_FLOW: 1214 gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask, 1215 tab); 1216 gfar_set_attribute(132, 0, RQFCR_PID_L4P, tab); 1217 gfar_set_basic_ip((struct ethtool_tcpip4_spec *)&rule->h_u, 1218 (struct ethtool_tcpip4_spec *)&rule->m_u, 1219 tab); 1220 break; 1221 case IP_USER_FLOW: 1222 gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask, 1223 tab); 1224 gfar_set_user_ip((struct ethtool_usrip4_spec *) &rule->h_u, 1225 (struct ethtool_usrip4_spec *) &rule->m_u, 1226 tab); 1227 break; 1228 case ETHER_FLOW: 1229 if (vlan) 1230 gfar_set_parse_bits(vlan, vlan_mask, tab); 1231 gfar_set_ether((struct ethhdr *) &rule->h_u, 1232 (struct ethhdr *) &rule->m_u, tab); 1233 break; 1234 default: 1235 return -1; 1236 } 1237 1238 /* Set the vlan attributes in the end */ 1239 if (vlan) { 1240 gfar_set_attribute(id, id_mask, RQFCR_PID_VID, tab); 1241 gfar_set_attribute(prio, prio_mask, RQFCR_PID_PRI, tab); 1242 } 1243 1244 /* If there has been nothing written till now, it must be a default */ 1245 if (tab->index == old_index) { 1246 gfar_set_mask(0xFFFFFFFF, tab); 1247 tab->fe[tab->index].ctrl = 0x20; 1248 tab->fe[tab->index].prop = 0x0; 1249 tab->index++; 1250 } 1251 1252 /* Remove last AND */ 1253 tab->fe[tab->index - 1].ctrl &= (~RQFCR_AND); 1254 1255 /* Specify which queue to use or to drop */ 1256 if (rule->ring_cookie == RX_CLS_FLOW_DISC) 1257 tab->fe[tab->index - 1].ctrl |= RQFCR_RJE; 1258 else 1259 tab->fe[tab->index - 1].ctrl |= (rule->ring_cookie << 10); 1260 1261 /* Only big enough entries can be clustered */ 1262 if (tab->index > (old_index + 2)) { 1263 tab->fe[old_index + 1].ctrl |= RQFCR_CLE; 1264 tab->fe[tab->index - 1].ctrl |= RQFCR_CLE; 1265 } 1266 1267 /* In rare cases the cache can be full while there is 1268 * free space in hw 1269 */ 1270 if (tab->index > MAX_FILER_CACHE_IDX - 1) 1271 return -EBUSY; 1272 1273 return 0; 1274} 1275 1276/* Copy size filer entries */ 1277static void gfar_copy_filer_entries(struct gfar_filer_entry dst[0], 1278 struct gfar_filer_entry src[0], s32 size) 1279{ 1280 while (size > 0) { 1281 size--; 1282 dst[size].ctrl = src[size].ctrl; 1283 dst[size].prop = src[size].prop; 1284 } 1285} 1286 1287/* Delete the contents of the filer-table between start and end 1288 * and collapse them 1289 */ 1290static int gfar_trim_filer_entries(u32 begin, u32 end, struct filer_table *tab) 1291{ 1292 int length; 1293 1294 if (end > MAX_FILER_CACHE_IDX || end < begin) 1295 return -EINVAL; 1296 1297 end++; 1298 length = end - begin; 1299 1300 /* Copy */ 1301 while (end < tab->index) { 1302 tab->fe[begin].ctrl = tab->fe[end].ctrl; 1303 tab->fe[begin++].prop = tab->fe[end++].prop; 1304 1305 } 1306 /* Fill up with don't cares */ 1307 while (begin < tab->index) { 1308 tab->fe[begin].ctrl = 0x60; 1309 tab->fe[begin].prop = 0xFFFFFFFF; 1310 begin++; 1311 } 1312 1313 tab->index -= length; 1314 return 0; 1315} 1316 1317/* Make space on the wanted location */ 1318static int gfar_expand_filer_entries(u32 begin, u32 length, 1319 struct filer_table *tab) 1320{ 1321 if (length == 0 || length + tab->index > MAX_FILER_CACHE_IDX || 1322 begin > MAX_FILER_CACHE_IDX) 1323 return -EINVAL; 1324 1325 gfar_copy_filer_entries(&(tab->fe[begin + length]), &(tab->fe[begin]), 1326 tab->index - length + 1); 1327 1328 tab->index += length; 1329 return 0; 1330} 1331 1332static int gfar_get_next_cluster_start(int start, struct filer_table *tab) 1333{ 1334 for (; (start < tab->index) && (start < MAX_FILER_CACHE_IDX - 1); 1335 start++) { 1336 if ((tab->fe[start].ctrl & (RQFCR_AND | RQFCR_CLE)) == 1337 (RQFCR_AND | RQFCR_CLE)) 1338 return start; 1339 } 1340 return -1; 1341} 1342 1343static int gfar_get_next_cluster_end(int start, struct filer_table *tab) 1344{ 1345 for (; (start < tab->index) && (start < MAX_FILER_CACHE_IDX - 1); 1346 start++) { 1347 if ((tab->fe[start].ctrl & (RQFCR_AND | RQFCR_CLE)) == 1348 (RQFCR_CLE)) 1349 return start; 1350 } 1351 return -1; 1352} 1353 1354/* Uses hardwares clustering option to reduce 1355 * the number of filer table entries 1356 */ 1357static void gfar_cluster_filer(struct filer_table *tab) 1358{ 1359 s32 i = -1, j, iend, jend; 1360 1361 while ((i = gfar_get_next_cluster_start(++i, tab)) != -1) { 1362 j = i; 1363 while ((j = gfar_get_next_cluster_start(++j, tab)) != -1) { 1364 /* The cluster entries self and the previous one 1365 * (a mask) must be identical! 1366 */ 1367 if (tab->fe[i].ctrl != tab->fe[j].ctrl) 1368 break; 1369 if (tab->fe[i].prop != tab->fe[j].prop) 1370 break; 1371 if (tab->fe[i - 1].ctrl != tab->fe[j - 1].ctrl) 1372 break; 1373 if (tab->fe[i - 1].prop != tab->fe[j - 1].prop) 1374 break; 1375 iend = gfar_get_next_cluster_end(i, tab); 1376 jend = gfar_get_next_cluster_end(j, tab); 1377 if (jend == -1 || iend == -1) 1378 break; 1379 1380 /* First we make some free space, where our cluster 1381 * element should be. Then we copy it there and finally 1382 * delete in from its old location. 1383 */ 1384 if (gfar_expand_filer_entries(iend, (jend - j), tab) == 1385 -EINVAL) 1386 break; 1387 1388 gfar_copy_filer_entries(&(tab->fe[iend + 1]), 1389 &(tab->fe[jend + 1]), jend - j); 1390 1391 if (gfar_trim_filer_entries(jend - 1, 1392 jend + (jend - j), 1393 tab) == -EINVAL) 1394 return; 1395 1396 /* Mask out cluster bit */ 1397 tab->fe[iend].ctrl &= ~(RQFCR_CLE); 1398 } 1399 } 1400} 1401 1402/* Swaps the masked bits of a1<>a2 and b1<>b2 */ 1403static void gfar_swap_bits(struct gfar_filer_entry *a1, 1404 struct gfar_filer_entry *a2, 1405 struct gfar_filer_entry *b1, 1406 struct gfar_filer_entry *b2, u32 mask) 1407{ 1408 u32 temp[4]; 1409 temp[0] = a1->ctrl & mask; 1410 temp[1] = a2->ctrl & mask; 1411 temp[2] = b1->ctrl & mask; 1412 temp[3] = b2->ctrl & mask; 1413 1414 a1->ctrl &= ~mask; 1415 a2->ctrl &= ~mask; 1416 b1->ctrl &= ~mask; 1417 b2->ctrl &= ~mask; 1418 1419 a1->ctrl |= temp[1]; 1420 a2->ctrl |= temp[0]; 1421 b1->ctrl |= temp[3]; 1422 b2->ctrl |= temp[2]; 1423} 1424 1425/* Generate a list consisting of masks values with their start and 1426 * end of validity and block as indicator for parts belonging 1427 * together (glued by ANDs) in mask_table 1428 */ 1429static u32 gfar_generate_mask_table(struct gfar_mask_entry *mask_table, 1430 struct filer_table *tab) 1431{ 1432 u32 i, and_index = 0, block_index = 1; 1433 1434 for (i = 0; i < tab->index; i++) { 1435 1436 /* LSByte of control = 0 sets a mask */ 1437 if (!(tab->fe[i].ctrl & 0xF)) { 1438 mask_table[and_index].mask = tab->fe[i].prop; 1439 mask_table[and_index].start = i; 1440 mask_table[and_index].block = block_index; 1441 if (and_index >= 1) 1442 mask_table[and_index - 1].end = i - 1; 1443 and_index++; 1444 } 1445 /* cluster starts and ends will be separated because they should 1446 * hold their position 1447 */ 1448 if (tab->fe[i].ctrl & RQFCR_CLE) 1449 block_index++; 1450 /* A not set AND indicates the end of a depended block */ 1451 if (!(tab->fe[i].ctrl & RQFCR_AND)) 1452 block_index++; 1453 } 1454 1455 mask_table[and_index - 1].end = i - 1; 1456 1457 return and_index; 1458} 1459 1460/* Sorts the entries of mask_table by the values of the masks. 1461 * Important: The 0xFF80 flags of the first and last entry of a 1462 * block must hold their position (which queue, CLusterEnable, ReJEct, 1463 * AND) 1464 */ 1465static void gfar_sort_mask_table(struct gfar_mask_entry *mask_table, 1466 struct filer_table *temp_table, u32 and_index) 1467{ 1468 /* Pointer to compare function (_asc or _desc) */ 1469 int (*gfar_comp)(const void *, const void *); 1470 1471 u32 i, size = 0, start = 0, prev = 1; 1472 u32 old_first, old_last, new_first, new_last; 1473 1474 gfar_comp = &gfar_comp_desc; 1475 1476 for (i = 0; i < and_index; i++) { 1477 if (prev != mask_table[i].block) { 1478 old_first = mask_table[start].start + 1; 1479 old_last = mask_table[i - 1].end; 1480 sort(mask_table + start, size, 1481 sizeof(struct gfar_mask_entry), 1482 gfar_comp, &gfar_swap); 1483 1484 /* Toggle order for every block. This makes the 1485 * thing more efficient! 1486 */ 1487 if (gfar_comp == gfar_comp_desc) 1488 gfar_comp = &gfar_comp_asc; 1489 else 1490 gfar_comp = &gfar_comp_desc; 1491 1492 new_first = mask_table[start].start + 1; 1493 new_last = mask_table[i - 1].end; 1494 1495 gfar_swap_bits(&temp_table->fe[new_first], 1496 &temp_table->fe[old_first], 1497 &temp_table->fe[new_last], 1498 &temp_table->fe[old_last], 1499 RQFCR_QUEUE | RQFCR_CLE | 1500 RQFCR_RJE | RQFCR_AND); 1501 1502 start = i; 1503 size = 0; 1504 } 1505 size++; 1506 prev = mask_table[i].block; 1507 } 1508} 1509 1510/* Reduces the number of masks needed in the filer table to save entries 1511 * This is done by sorting the masks of a depended block. A depended block is 1512 * identified by gluing ANDs or CLE. The sorting order toggles after every 1513 * block. Of course entries in scope of a mask must change their location with 1514 * it. 1515 */ 1516static int gfar_optimize_filer_masks(struct filer_table *tab) 1517{ 1518 struct filer_table *temp_table; 1519 struct gfar_mask_entry *mask_table; 1520 1521 u32 and_index = 0, previous_mask = 0, i = 0, j = 0, size = 0; 1522 s32 ret = 0; 1523 1524 /* We need a copy of the filer table because 1525 * we want to change its order 1526 */ 1527 temp_table = kmemdup(tab, sizeof(*temp_table), GFP_KERNEL); 1528 if (temp_table == NULL) 1529 return -ENOMEM; 1530 1531 mask_table = kcalloc(MAX_FILER_CACHE_IDX / 2 + 1, 1532 sizeof(struct gfar_mask_entry), GFP_KERNEL); 1533 1534 if (mask_table == NULL) { 1535 ret = -ENOMEM; 1536 goto end; 1537 } 1538 1539 and_index = gfar_generate_mask_table(mask_table, tab); 1540 1541 gfar_sort_mask_table(mask_table, temp_table, and_index); 1542 1543 /* Now we can copy the data from our duplicated filer table to 1544 * the real one in the order the mask table says 1545 */ 1546 for (i = 0; i < and_index; i++) { 1547 size = mask_table[i].end - mask_table[i].start + 1; 1548 gfar_copy_filer_entries(&(tab->fe[j]), 1549 &(temp_table->fe[mask_table[i].start]), size); 1550 j += size; 1551 } 1552 1553 /* And finally we just have to check for duplicated masks and drop the 1554 * second ones 1555 */ 1556 for (i = 0; i < tab->index && i < MAX_FILER_CACHE_IDX; i++) { 1557 if (tab->fe[i].ctrl == 0x80) { 1558 previous_mask = i++; 1559 break; 1560 } 1561 } 1562 for (; i < tab->index && i < MAX_FILER_CACHE_IDX; i++) { 1563 if (tab->fe[i].ctrl == 0x80) { 1564 if (tab->fe[i].prop == tab->fe[previous_mask].prop) { 1565 /* Two identical ones found! 1566 * So drop the second one! 1567 */ 1568 gfar_trim_filer_entries(i, i, tab); 1569 } else 1570 /* Not identical! */ 1571 previous_mask = i; 1572 } 1573 } 1574 1575 kfree(mask_table); 1576end: kfree(temp_table); 1577 return ret; 1578} 1579 1580/* Write the bit-pattern from software's buffer to hardware registers */ 1581static int gfar_write_filer_table(struct gfar_private *priv, 1582 struct filer_table *tab) 1583{ 1584 u32 i = 0; 1585 if (tab->index > MAX_FILER_IDX - 1) 1586 return -EBUSY; 1587 1588 /* Fill regular entries */ 1589 for (; i < MAX_FILER_IDX - 1 && (tab->fe[i].ctrl | tab->fe[i].prop); 1590 i++) 1591 gfar_write_filer(priv, i, tab->fe[i].ctrl, tab->fe[i].prop); 1592 /* Fill the rest with fall-troughs */ 1593 for (; i < MAX_FILER_IDX - 1; i++) 1594 gfar_write_filer(priv, i, 0x60, 0xFFFFFFFF); 1595 /* Last entry must be default accept 1596 * because that's what people expect 1597 */ 1598 gfar_write_filer(priv, i, 0x20, 0x0); 1599 1600 return 0; 1601} 1602 1603static int gfar_check_capability(struct ethtool_rx_flow_spec *flow, 1604 struct gfar_private *priv) 1605{ 1606 1607 if (flow->flow_type & FLOW_EXT) { 1608 if (~flow->m_ext.data[0] || ~flow->m_ext.data[1]) 1609 netdev_warn(priv->ndev, 1610 "User-specific data not supported!\n"); 1611 if (~flow->m_ext.vlan_etype) 1612 netdev_warn(priv->ndev, 1613 "VLAN-etype not supported!\n"); 1614 } 1615 if (flow->flow_type == IP_USER_FLOW) 1616 if (flow->h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4) 1617 netdev_warn(priv->ndev, 1618 "IP-Version differing from IPv4 not supported!\n"); 1619 1620 return 0; 1621} 1622 1623static int gfar_process_filer_changes(struct gfar_private *priv) 1624{ 1625 struct ethtool_flow_spec_container *j; 1626 struct filer_table *tab; 1627 s32 i = 0; 1628 s32 ret = 0; 1629 1630 /* So index is set to zero, too! */ 1631 tab = kzalloc(sizeof(*tab), GFP_KERNEL); 1632 if (tab == NULL) 1633 return -ENOMEM; 1634 1635 /* Now convert the existing filer data from flow_spec into 1636 * filer tables binary format 1637 */ 1638 list_for_each_entry(j, &priv->rx_list.list, list) { 1639 ret = gfar_convert_to_filer(&j->fs, tab); 1640 if (ret == -EBUSY) { 1641 netdev_err(priv->ndev, 1642 "Rule not added: No free space!\n"); 1643 goto end; 1644 } 1645 if (ret == -1) { 1646 netdev_err(priv->ndev, 1647 "Rule not added: Unsupported Flow-type!\n"); 1648 goto end; 1649 } 1650 } 1651 1652 i = tab->index; 1653 1654 /* Optimizations to save entries */ 1655 gfar_cluster_filer(tab); 1656 gfar_optimize_filer_masks(tab); 1657 1658 pr_debug("\tSummary:\n" 1659 "\tData on hardware: %d\n" 1660 "\tCompression rate: %d%%\n", 1661 tab->index, 100 - (100 * tab->index) / i); 1662 1663 /* Write everything to hardware */ 1664 ret = gfar_write_filer_table(priv, tab); 1665 if (ret == -EBUSY) { 1666 netdev_err(priv->ndev, "Rule not added: No free space!\n"); 1667 goto end; 1668 } 1669 1670end: 1671 kfree(tab); 1672 return ret; 1673} 1674 1675static void gfar_invert_masks(struct ethtool_rx_flow_spec *flow) 1676{ 1677 u32 i = 0; 1678 1679 for (i = 0; i < sizeof(flow->m_u); i++) 1680 flow->m_u.hdata[i] ^= 0xFF; 1681 1682 flow->m_ext.vlan_etype ^= cpu_to_be16(0xFFFF); 1683 flow->m_ext.vlan_tci ^= cpu_to_be16(0xFFFF); 1684 flow->m_ext.data[0] ^= cpu_to_be32(~0); 1685 flow->m_ext.data[1] ^= cpu_to_be32(~0); 1686} 1687 1688static int gfar_add_cls(struct gfar_private *priv, 1689 struct ethtool_rx_flow_spec *flow) 1690{ 1691 struct ethtool_flow_spec_container *temp, *comp; 1692 int ret = 0; 1693 1694 temp = kmalloc(sizeof(*temp), GFP_KERNEL); 1695 if (temp == NULL) 1696 return -ENOMEM; 1697 memcpy(&temp->fs, flow, sizeof(temp->fs)); 1698 1699 gfar_invert_masks(&temp->fs); 1700 ret = gfar_check_capability(&temp->fs, priv); 1701 if (ret) 1702 goto clean_mem; 1703 /* Link in the new element at the right @location */ 1704 if (list_empty(&priv->rx_list.list)) { 1705 ret = gfar_check_filer_hardware(priv); 1706 if (ret != 0) 1707 goto clean_mem; 1708 list_add(&temp->list, &priv->rx_list.list); 1709 goto process; 1710 } else { 1711 list_for_each_entry(comp, &priv->rx_list.list, list) { 1712 if (comp->fs.location > flow->location) { 1713 list_add_tail(&temp->list, &comp->list); 1714 goto process; 1715 } 1716 if (comp->fs.location == flow->location) { 1717 netdev_err(priv->ndev, 1718 "Rule not added: ID %d not free!\n", 1719 flow->location); 1720 ret = -EBUSY; 1721 goto clean_mem; 1722 } 1723 } 1724 list_add_tail(&temp->list, &priv->rx_list.list); 1725 } 1726 1727process: 1728 ret = gfar_process_filer_changes(priv); 1729 if (ret) 1730 goto clean_list; 1731 priv->rx_list.count++; 1732 return ret; 1733 1734clean_list: 1735 list_del(&temp->list); 1736clean_mem: 1737 kfree(temp); 1738 return ret; 1739} 1740 1741static int gfar_del_cls(struct gfar_private *priv, u32 loc) 1742{ 1743 struct ethtool_flow_spec_container *comp; 1744 u32 ret = -EINVAL; 1745 1746 if (list_empty(&priv->rx_list.list)) 1747 return ret; 1748 1749 list_for_each_entry(comp, &priv->rx_list.list, list) { 1750 if (comp->fs.location == loc) { 1751 list_del(&comp->list); 1752 kfree(comp); 1753 priv->rx_list.count--; 1754 gfar_process_filer_changes(priv); 1755 ret = 0; 1756 break; 1757 } 1758 } 1759 1760 return ret; 1761} 1762 1763static int gfar_get_cls(struct gfar_private *priv, struct ethtool_rxnfc *cmd) 1764{ 1765 struct ethtool_flow_spec_container *comp; 1766 u32 ret = -EINVAL; 1767 1768 list_for_each_entry(comp, &priv->rx_list.list, list) { 1769 if (comp->fs.location == cmd->fs.location) { 1770 memcpy(&cmd->fs, &comp->fs, sizeof(cmd->fs)); 1771 gfar_invert_masks(&cmd->fs); 1772 ret = 0; 1773 break; 1774 } 1775 } 1776 1777 return ret; 1778} 1779 1780static int gfar_get_cls_all(struct gfar_private *priv, 1781 struct ethtool_rxnfc *cmd, u32 *rule_locs) 1782{ 1783 struct ethtool_flow_spec_container *comp; 1784 u32 i = 0; 1785 1786 list_for_each_entry(comp, &priv->rx_list.list, list) { 1787 if (i == cmd->rule_cnt) 1788 return -EMSGSIZE; 1789 rule_locs[i] = comp->fs.location; 1790 i++; 1791 } 1792 1793 cmd->data = MAX_FILER_IDX; 1794 cmd->rule_cnt = i; 1795 1796 return 0; 1797} 1798 1799static int gfar_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd) 1800{ 1801 struct gfar_private *priv = netdev_priv(dev); 1802 int ret = 0; 1803 1804 if (test_bit(GFAR_RESETTING, &priv->state)) 1805 return -EBUSY; 1806 1807 mutex_lock(&priv->rx_queue_access); 1808 1809 switch (cmd->cmd) { 1810 case ETHTOOL_SRXFH: 1811 ret = gfar_set_hash_opts(priv, cmd); 1812 break; 1813 case ETHTOOL_SRXCLSRLINS: 1814 if ((cmd->fs.ring_cookie != RX_CLS_FLOW_DISC && 1815 cmd->fs.ring_cookie >= priv->num_rx_queues) || 1816 cmd->fs.location >= MAX_FILER_IDX) { 1817 ret = -EINVAL; 1818 break; 1819 } 1820 ret = gfar_add_cls(priv, &cmd->fs); 1821 break; 1822 case ETHTOOL_SRXCLSRLDEL: 1823 ret = gfar_del_cls(priv, cmd->fs.location); 1824 break; 1825 default: 1826 ret = -EINVAL; 1827 } 1828 1829 mutex_unlock(&priv->rx_queue_access); 1830 1831 return ret; 1832} 1833 1834static int gfar_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd, 1835 u32 *rule_locs) 1836{ 1837 struct gfar_private *priv = netdev_priv(dev); 1838 int ret = 0; 1839 1840 switch (cmd->cmd) { 1841 case ETHTOOL_GRXRINGS: 1842 cmd->data = priv->num_rx_queues; 1843 break; 1844 case ETHTOOL_GRXCLSRLCNT: 1845 cmd->rule_cnt = priv->rx_list.count; 1846 break; 1847 case ETHTOOL_GRXCLSRULE: 1848 ret = gfar_get_cls(priv, cmd); 1849 break; 1850 case ETHTOOL_GRXCLSRLALL: 1851 ret = gfar_get_cls_all(priv, cmd, rule_locs); 1852 break; 1853 default: 1854 ret = -EINVAL; 1855 break; 1856 } 1857 1858 return ret; 1859} 1860 1861int gfar_phc_index = -1; 1862EXPORT_SYMBOL(gfar_phc_index); 1863 1864static int gfar_get_ts_info(struct net_device *dev, 1865 struct ethtool_ts_info *info) 1866{ 1867 struct gfar_private *priv = netdev_priv(dev); 1868 1869 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER)) { 1870 info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE | 1871 SOF_TIMESTAMPING_SOFTWARE; 1872 info->phc_index = -1; 1873 return 0; 1874 } 1875 info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE | 1876 SOF_TIMESTAMPING_RX_HARDWARE | 1877 SOF_TIMESTAMPING_RAW_HARDWARE; 1878 info->phc_index = gfar_phc_index; 1879 info->tx_types = (1 << HWTSTAMP_TX_OFF) | 1880 (1 << HWTSTAMP_TX_ON); 1881 info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) | 1882 (1 << HWTSTAMP_FILTER_ALL); 1883 return 0; 1884} 1885 1886const struct ethtool_ops gfar_ethtool_ops = { 1887 .get_settings = gfar_gsettings, 1888 .set_settings = gfar_ssettings, 1889 .get_drvinfo = gfar_gdrvinfo, 1890 .get_regs_len = gfar_reglen, 1891 .get_regs = gfar_get_regs, 1892 .get_link = ethtool_op_get_link, 1893 .get_coalesce = gfar_gcoalesce, 1894 .set_coalesce = gfar_scoalesce, 1895 .get_ringparam = gfar_gringparam, 1896 .set_ringparam = gfar_sringparam, 1897 .get_pauseparam = gfar_gpauseparam, 1898 .set_pauseparam = gfar_spauseparam, 1899 .get_strings = gfar_gstrings, 1900 .get_sset_count = gfar_sset_count, 1901 .get_ethtool_stats = gfar_fill_stats, 1902 .get_msglevel = gfar_get_msglevel, 1903 .set_msglevel = gfar_set_msglevel, 1904#ifdef CONFIG_PM 1905 .get_wol = gfar_get_wol, 1906 .set_wol = gfar_set_wol, 1907#endif 1908 .set_rxnfc = gfar_set_nfc, 1909 .get_rxnfc = gfar_get_nfc, 1910 .get_ts_info = gfar_get_ts_info, 1911}; 1912