drivers/net/ethernet/freescale/gianfar_ethtool.c

   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 <[email protected]>
  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/init.h>
  26 #include <linux/delay.h>
  27 #include <linux/netdevice.h>
  28 #include <linux/etherdevice.h>
  29 #include <linux/net_tstamp.h>
  30 #include <linux/skbuff.h>
  31 #include <linux/spinlock.h>
  32 #include <linux/mm.h>
  33
  34 #include <asm/io.h>
  35 #include <asm/irq.h>
  36 #include <asm/uaccess.h>
  37 #include <linux/module.h>
  38 #include <linux/crc32.h>
  39 #include <asm/types.h>
  40 #include <linux/ethtool.h>
  41 #include <linux/mii.h>
  42 #include <linux/phy.h>
  43 #include <linux/sort.h>
  44 #include <linux/if_vlan.h>
  45
  46 #include "gianfar.h"
  47
  48 extern void gfar_start(struct net_device *dev);
  49 extern int gfar_clean_rx_ring(struct gfar_priv_rx_q *rx_queue,
  50                               int rx_work_limit);
  51
  52 #define GFAR_MAX_COAL_USECS 0xffff
  53 #define GFAR_MAX_COAL_FRAMES 0xff
  54 static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy,
  55                             u64 *buf);
  56 static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf);
  57 static int gfar_gcoalesce(struct net_device *dev,
  58                           struct ethtool_coalesce *cvals);
  59 static int gfar_scoalesce(struct net_device *dev,
  60                           struct ethtool_coalesce *cvals);
  61 static void gfar_gringparam(struct net_device *dev,
  62                             struct ethtool_ringparam *rvals);
  63 static int gfar_sringparam(struct net_device *dev,
  64                            struct ethtool_ringparam *rvals);
  65 static void gfar_gdrvinfo(struct net_device *dev,
  66                           struct ethtool_drvinfo *drvinfo);
  67
  68 static const char stat_gstrings[][ETH_GSTRING_LEN] = {
  69         "rx-large-frame-errors",
  70         "rx-short-frame-errors",
  71         "rx-non-octet-errors",
  72         "rx-crc-errors",
  73         "rx-overrun-errors",
  74         "rx-busy-errors",
  75         "rx-babbling-errors",
  76         "rx-truncated-frames",
  77         "ethernet-bus-error",
  78         "tx-babbling-errors",
  79         "tx-underrun-errors",
  80         "rx-skb-missing-errors",
  81         "tx-timeout-errors",
  82         "tx-rx-64-frames",
  83         "tx-rx-65-127-frames",
  84         "tx-rx-128-255-frames",
  85         "tx-rx-256-511-frames",
  86         "tx-rx-512-1023-frames",
  87         "tx-rx-1024-1518-frames",
  88         "tx-rx-1519-1522-good-vlan",
  89         "rx-bytes",
  90         "rx-packets",
  91         "rx-fcs-errors",
  92         "receive-multicast-packet",
  93         "receive-broadcast-packet",
  94         "rx-control-frame-packets",
  95         "rx-pause-frame-packets",
  96         "rx-unknown-op-code",
  97         "rx-alignment-error",
  98         "rx-frame-length-error",
  99         "rx-code-error",
 100         "rx-carrier-sense-error",
 101         "rx-undersize-packets",
 102         "rx-oversize-packets",
 103         "rx-fragmented-frames",
 104         "rx-jabber-frames",
 105         "rx-dropped-frames",
 106         "tx-byte-counter",
 107         "tx-packets",
 108         "tx-multicast-packets",
 109         "tx-broadcast-packets",
 110         "tx-pause-control-frames",
 111         "tx-deferral-packets",
 112         "tx-excessive-deferral-packets",
 113         "tx-single-collision-packets",
 114         "tx-multiple-collision-packets",
 115         "tx-late-collision-packets",
 116         "tx-excessive-collision-packets",
 117         "tx-total-collision",
 118         "reserved",
 119         "tx-dropped-frames",
 120         "tx-jabber-frames",
 121         "tx-fcs-errors",
 122         "tx-control-frames",
 123         "tx-oversize-frames",
 124         "tx-undersize-frames",
 125         "tx-fragmented-frames",
 126 };
 127
 128 /* Fill in a buffer with the strings which correspond to the
 129  * stats */
 130 static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf)
 131 {
 132         struct gfar_private *priv = netdev_priv(dev);
 133
 134         if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON)
 135                 memcpy(buf, stat_gstrings, GFAR_STATS_LEN * ETH_GSTRING_LEN);
 136         else
 137                 memcpy(buf, stat_gstrings,
 138                        GFAR_EXTRA_STATS_LEN * ETH_GSTRING_LEN);
 139 }
 140
 141 /* Fill in an array of 64-bit statistics from various sources.
 142  * This array will be appended to the end of the ethtool_stats
 143  * structure, and returned to user space
 144  */
 145 static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy,
 146                             u64 *buf)
 147 {
 148         int i;
 149         struct gfar_private *priv = netdev_priv(dev);
 150         struct gfar __iomem *regs = priv->gfargrp[0].regs;
 151         atomic64_t *extra = (atomic64_t *)&priv->extra_stats;
 152
 153         for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++)
 154                 buf[i] = atomic64_read(&extra[i]);
 155
 156         if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) {
 157                 u32 __iomem *rmon = (u32 __iomem *) &regs->rmon;
 158
 159                 for (; i < GFAR_STATS_LEN; i++, rmon++)
 160                         buf[i] = (u64) gfar_read(rmon);
 161         }
 162 }
 163
 164 static int gfar_sset_count(struct net_device *dev, int sset)
 165 {
 166         struct gfar_private *priv = netdev_priv(dev);
 167
 168         switch (sset) {
 169         case ETH_SS_STATS:
 170                 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON)
 171                         return GFAR_STATS_LEN;
 172                 else
 173                         return GFAR_EXTRA_STATS_LEN;
 174         default:
 175                 return -EOPNOTSUPP;
 176         }
 177 }
 178
 179 /* Fills in the drvinfo structure with some basic info */
 180 static void gfar_gdrvinfo(struct net_device *dev,
 181                           struct ethtool_drvinfo *drvinfo)
 182 {
 183         strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
 184         strlcpy(drvinfo->version, gfar_driver_version,
 185                 sizeof(drvinfo->version));
 186         strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version));
 187         strlcpy(drvinfo->bus_info, "N/A", sizeof(drvinfo->bus_info));
 188         drvinfo->regdump_len = 0;
 189         drvinfo->eedump_len = 0;
 190 }
 191
 192
 193 static int gfar_ssettings(struct net_device *dev, struct ethtool_cmd *cmd)
 194 {
 195         struct gfar_private *priv = netdev_priv(dev);
 196         struct phy_device *phydev = priv->phydev;
 197
 198         if (NULL == phydev)
 199                 return -ENODEV;
 200
 201         return phy_ethtool_sset(phydev, cmd);
 202 }
 203
 204
 205 /* Return the current settings in the ethtool_cmd structure */
 206 static int gfar_gsettings(struct net_device *dev, struct ethtool_cmd *cmd)
 207 {
 208         struct gfar_private *priv = netdev_priv(dev);
 209         struct phy_device *phydev = priv->phydev;
 210         struct gfar_priv_rx_q *rx_queue = NULL;
 211         struct gfar_priv_tx_q *tx_queue = NULL;
 212
 213         if (NULL == phydev)
 214                 return -ENODEV;
 215         tx_queue = priv->tx_queue[0];
 216         rx_queue = priv->rx_queue[0];
 217
 218         /* etsec-1.7 and older versions have only one txic
 219          * and rxic regs although they support multiple queues */
 220         cmd->maxtxpkt = get_icft_value(tx_queue->txic);
 221         cmd->maxrxpkt = get_icft_value(rx_queue->rxic);
 222
 223         return phy_ethtool_gset(phydev, cmd);
 224 }
 225
 226 /* Return the length of the register structure */
 227 static int gfar_reglen(struct net_device *dev)
 228 {
 229         return sizeof (struct gfar);
 230 }
 231
 232 /* Return a dump of the GFAR register space */
 233 static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs,
 234                           void *regbuf)
 235 {
 236         int i;
 237         struct gfar_private *priv = netdev_priv(dev);
 238         u32 __iomem *theregs = (u32 __iomem *) priv->gfargrp[0].regs;
 239         u32 *buf = (u32 *) regbuf;
 240
 241         for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++)
 242                 buf[i] = gfar_read(&theregs[i]);
 243 }
 244
 245 /* Convert microseconds to ethernet clock ticks, which changes
 246  * depending on what speed the controller is running at */
 247 static unsigned int gfar_usecs2ticks(struct gfar_private *priv,
 248                                      unsigned int usecs)
 249 {
 250         unsigned int count;
 251
 252         /* The timer is different, depending on the interface speed */
 253         switch (priv->phydev->speed) {
 254         case SPEED_1000:
 255                 count = GFAR_GBIT_TIME;
 256                 break;
 257         case SPEED_100:
 258                 count = GFAR_100_TIME;
 259                 break;
 260         case SPEED_10:
 261         default:
 262                 count = GFAR_10_TIME;
 263                 break;
 264         }
 265
 266         /* Make sure we return a number greater than 0
 267          * if usecs > 0 */
 268         return (usecs * 1000 + count - 1) / count;
 269 }
 270
 271 /* Convert ethernet clock ticks to microseconds */
 272 static unsigned int gfar_ticks2usecs(struct gfar_private *priv,
 273                                      unsigned int ticks)
 274 {
 275         unsigned int count;
 276
 277         /* The timer is different, depending on the interface speed */
 278         switch (priv->phydev->speed) {
 279         case SPEED_1000:
 280                 count = GFAR_GBIT_TIME;
 281                 break;
 282         case SPEED_100:
 283                 count = GFAR_100_TIME;
 284                 break;
 285         case SPEED_10:
 286         default:
 287                 count = GFAR_10_TIME;
 288                 break;
 289         }
 290
 291         /* Make sure we return a number greater than 0 */
 292         /* if ticks is > 0 */
 293         return (ticks * count) / 1000;
 294 }
 295
 296 /* Get the coalescing parameters, and put them in the cvals
 297  * structure.  */
 298 static int gfar_gcoalesce(struct net_device *dev,
 299                           struct ethtool_coalesce *cvals)
 300 {
 301         struct gfar_private *priv = netdev_priv(dev);
 302         struct gfar_priv_rx_q *rx_queue = NULL;
 303         struct gfar_priv_tx_q *tx_queue = NULL;
 304         unsigned long rxtime;
 305         unsigned long rxcount;
 306         unsigned long txtime;
 307         unsigned long txcount;
 308
 309         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
 310                 return -EOPNOTSUPP;
 311
 312         if (NULL == priv->phydev)
 313                 return -ENODEV;
 314
 315         rx_queue = priv->rx_queue[0];
 316         tx_queue = priv->tx_queue[0];
 317
 318         rxtime  = get_ictt_value(rx_queue->rxic);
 319         rxcount = get_icft_value(rx_queue->rxic);
 320         txtime  = get_ictt_value(tx_queue->txic);
 321         txcount = get_icft_value(tx_queue->txic);
 322         cvals->rx_coalesce_usecs = gfar_ticks2usecs(priv, rxtime);
 323         cvals->rx_max_coalesced_frames = rxcount;
 324
 325         cvals->tx_coalesce_usecs = gfar_ticks2usecs(priv, txtime);
 326         cvals->tx_max_coalesced_frames = txcount;
 327
 328         cvals->use_adaptive_rx_coalesce = 0;
 329         cvals->use_adaptive_tx_coalesce = 0;
 330
 331         cvals->pkt_rate_low = 0;
 332         cvals->rx_coalesce_usecs_low = 0;
 333         cvals->rx_max_coalesced_frames_low = 0;
 334         cvals->tx_coalesce_usecs_low = 0;
 335         cvals->tx_max_coalesced_frames_low = 0;
 336
 337         /* When the packet rate is below pkt_rate_high but above
 338          * pkt_rate_low (both measured in packets per second) the
 339          * normal {rx,tx}_* coalescing parameters are used.
 340          */
 341
 342         /* When the packet rate is (measured in packets per second)
 343          * is above pkt_rate_high, the {rx,tx}_*_high parameters are
 344          * used.
 345          */
 346         cvals->pkt_rate_high = 0;
 347         cvals->rx_coalesce_usecs_high = 0;
 348         cvals->rx_max_coalesced_frames_high = 0;
 349         cvals->tx_coalesce_usecs_high = 0;
 350         cvals->tx_max_coalesced_frames_high = 0;
 351
 352         /* How often to do adaptive coalescing packet rate sampling,
 353          * measured in seconds.  Must not be zero.
 354          */
 355         cvals->rate_sample_interval = 0;
 356
 357         return 0;
 358 }
 359
 360 /* Change the coalescing values.
 361  * Both cvals->*_usecs and cvals->*_frames have to be > 0
 362  * in order for coalescing to be active
 363  */
 364 static int gfar_scoalesce(struct net_device *dev,
 365                           struct ethtool_coalesce *cvals)
 366 {
 367         struct gfar_private *priv = netdev_priv(dev);
 368         int i = 0;
 369
 370         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
 371                 return -EOPNOTSUPP;
 372
 373         /* Set up rx coalescing */
 374         /* As of now, we will enable/disable coalescing for all
 375          * queues together in case of eTSEC2, this will be modified
 376          * along with the ethtool interface
 377          */
 378         if ((cvals->rx_coalesce_usecs == 0) ||
 379             (cvals->rx_max_coalesced_frames == 0)) {
 380                 for (i = 0; i < priv->num_rx_queues; i++)
 381                         priv->rx_queue[i]->rxcoalescing = 0;
 382         } else {
 383                 for (i = 0; i < priv->num_rx_queues; i++)
 384                         priv->rx_queue[i]->rxcoalescing = 1;
 385         }
 386
 387         if (NULL == priv->phydev)
 388                 return -ENODEV;
 389
 390         /* Check the bounds of the values */
 391         if (cvals->rx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
 392                 netdev_info(dev, "Coalescing is limited to %d microseconds\n",
 393                             GFAR_MAX_COAL_USECS);
 394                 return -EINVAL;
 395         }
 396
 397         if (cvals->rx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
 398                 netdev_info(dev, "Coalescing is limited to %d frames\n",
 399                             GFAR_MAX_COAL_FRAMES);
 400                 return -EINVAL;
 401         }
 402
 403         for (i = 0; i < priv->num_rx_queues; i++) {
 404                 priv->rx_queue[i]->rxic = mk_ic_value(
 405                         cvals->rx_max_coalesced_frames,
 406                         gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs));
 407         }
 408
 409         /* Set up tx coalescing */
 410         if ((cvals->tx_coalesce_usecs == 0) ||
 411             (cvals->tx_max_coalesced_frames == 0)) {
 412                 for (i = 0; i < priv->num_tx_queues; i++)
 413                         priv->tx_queue[i]->txcoalescing = 0;
 414         } else {
 415                 for (i = 0; i < priv->num_tx_queues; i++)
 416                         priv->tx_queue[i]->txcoalescing = 1;
 417         }
 418
 419         /* Check the bounds of the values */
 420         if (cvals->tx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
 421                 netdev_info(dev, "Coalescing is limited to %d microseconds\n",
 422                             GFAR_MAX_COAL_USECS);
 423                 return -EINVAL;
 424         }
 425
 426         if (cvals->tx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
 427                 netdev_info(dev, "Coalescing is limited to %d frames\n",
 428                             GFAR_MAX_COAL_FRAMES);
 429                 return -EINVAL;
 430         }
 431
 432         for (i = 0; i < priv->num_tx_queues; i++) {
 433                 priv->tx_queue[i]->txic = mk_ic_value(
 434                         cvals->tx_max_coalesced_frames,
 435                         gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs));
 436         }
 437
 438         gfar_configure_coalescing_all(priv);
 439
 440         return 0;
 441 }
 442
 443 /* Fills in rvals with the current ring parameters.  Currently,
 444  * rx, rx_mini, and rx_jumbo rings are the same size, as mini and
 445  * jumbo are ignored by the driver */
 446 static void gfar_gringparam(struct net_device *dev,
 447                             struct ethtool_ringparam *rvals)
 448 {
 449         struct gfar_private *priv = netdev_priv(dev);
 450         struct gfar_priv_tx_q *tx_queue = NULL;
 451         struct gfar_priv_rx_q *rx_queue = NULL;
 452
 453         tx_queue = priv->tx_queue[0];
 454         rx_queue = priv->rx_queue[0];
 455
 456         rvals->rx_max_pending = GFAR_RX_MAX_RING_SIZE;
 457         rvals->rx_mini_max_pending = GFAR_RX_MAX_RING_SIZE;
 458         rvals->rx_jumbo_max_pending = GFAR_RX_MAX_RING_SIZE;
 459         rvals->tx_max_pending = GFAR_TX_MAX_RING_SIZE;
 460
 461         /* Values changeable by the user.  The valid values are
 462          * in the range 1 to the "*_max_pending" counterpart above.
 463          */
 464         rvals->rx_pending = rx_queue->rx_ring_size;
 465         rvals->rx_mini_pending = rx_queue->rx_ring_size;
 466         rvals->rx_jumbo_pending = rx_queue->rx_ring_size;
 467         rvals->tx_pending = tx_queue->tx_ring_size;
 468 }
 469
 470 /* Change the current ring parameters, stopping the controller if
 471  * necessary so that we don't mess things up while we're in
 472  * motion.  We wait for the ring to be clean before reallocating
 473  * the rings.
 474  */
 475 static int gfar_sringparam(struct net_device *dev,
 476                            struct ethtool_ringparam *rvals)
 477 {
 478         struct gfar_private *priv = netdev_priv(dev);
 479         int err = 0, i = 0;
 480
 481         if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE)
 482                 return -EINVAL;
 483
 484         if (!is_power_of_2(rvals->rx_pending)) {
 485                 netdev_err(dev, "Ring sizes must be a power of 2\n");
 486                 return -EINVAL;
 487         }
 488
 489         if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE)
 490                 return -EINVAL;
 491
 492         if (!is_power_of_2(rvals->tx_pending)) {
 493                 netdev_err(dev, "Ring sizes must be a power of 2\n");
 494                 return -EINVAL;
 495         }
 496
 497
 498         if (dev->flags & IFF_UP) {
 499                 unsigned long flags;
 500
 501                 /* Halt TX and RX, and process the frames which
 502                  * have already been received
 503                  */
 504                 local_irq_save(flags);
 505                 lock_tx_qs(priv);
 506                 lock_rx_qs(priv);
 507
 508                 gfar_halt(dev);
 509
 510                 unlock_rx_qs(priv);
 511                 unlock_tx_qs(priv);
 512                 local_irq_restore(flags);
 513
 514                 for (i = 0; i < priv->num_rx_queues; i++)
 515                         gfar_clean_rx_ring(priv->rx_queue[i],
 516                                            priv->rx_queue[i]->rx_ring_size);
 517
 518                 /* Now we take down the rings to rebuild them */
 519                 stop_gfar(dev);
 520         }
 521
 522         /* Change the size */
 523         for (i = 0; i < priv->num_rx_queues; i++) {
 524                 priv->rx_queue[i]->rx_ring_size = rvals->rx_pending;
 525                 priv->tx_queue[i]->tx_ring_size = rvals->tx_pending;
 526                 priv->tx_queue[i]->num_txbdfree =
 527                         priv->tx_queue[i]->tx_ring_size;
 528         }
 529
 530         /* Rebuild the rings with the new size */
 531         if (dev->flags & IFF_UP) {
 532                 err = startup_gfar(dev);
 533                 netif_tx_wake_all_queues(dev);
 534         }
 535         return err;
 536 }
 537
 538 int gfar_set_features(struct net_device *dev, netdev_features_t features)
 539 {
 540         struct gfar_private *priv = netdev_priv(dev);
 541         unsigned long flags;
 542         int err = 0, i = 0;
 543         netdev_features_t changed = dev->features ^ features;
 544
 545         if (changed & (NETIF_F_HW_VLAN_CTAG_TX|NETIF_F_HW_VLAN_CTAG_RX))
 546                 gfar_vlan_mode(dev, features);
 547
 548         if (!(changed & NETIF_F_RXCSUM))
 549                 return 0;
 550
 551         if (dev->flags & IFF_UP) {
 552                 /* Halt TX and RX, and process the frames which
 553                  * have already been received
 554                  */
 555                 local_irq_save(flags);
 556                 lock_tx_qs(priv);
 557                 lock_rx_qs(priv);
 558
 559                 gfar_halt(dev);
 560
 561                 unlock_tx_qs(priv);
 562                 unlock_rx_qs(priv);
 563                 local_irq_restore(flags);
 564
 565                 for (i = 0; i < priv->num_rx_queues; i++)
 566                         gfar_clean_rx_ring(priv->rx_queue[i],
 567                                            priv->rx_queue[i]->rx_ring_size);
 568
 569                 /* Now we take down the rings to rebuild them */
 570                 stop_gfar(dev);
 571
 572                 dev->features = features;
 573
 574                 err = startup_gfar(dev);
 575                 netif_tx_wake_all_queues(dev);
 576         }
 577         return err;
 578 }
 579
 580 static uint32_t gfar_get_msglevel(struct net_device *dev)
 581 {
 582         struct gfar_private *priv = netdev_priv(dev);
 583
 584         return priv->msg_enable;
 585 }
 586
 587 static void gfar_set_msglevel(struct net_device *dev, uint32_t data)
 588 {
 589         struct gfar_private *priv = netdev_priv(dev);
 590
 591         priv->msg_enable = data;
 592 }
 593
 594 #ifdef CONFIG_PM
 595 static void gfar_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 596 {
 597         struct gfar_private *priv = netdev_priv(dev);
 598
 599         if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) {
 600                 wol->supported = WAKE_MAGIC;
 601                 wol->wolopts = priv->wol_en ? WAKE_MAGIC : 0;
 602         } else {
 603                 wol->supported = wol->wolopts = 0;
 604         }
 605 }
 606
 607 static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 608 {
 609         struct gfar_private *priv = netdev_priv(dev);
 610         unsigned long flags;
 611
 612         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) &&
 613             wol->wolopts != 0)
 614                 return -EINVAL;
 615
 616         if (wol->wolopts & ~WAKE_MAGIC)
 617                 return -EINVAL;
 618
 619         device_set_wakeup_enable(&dev->dev, wol->wolopts & WAKE_MAGIC);
 620
 621         spin_lock_irqsave(&priv->bflock, flags);
 622         priv->wol_en =  !!device_may_wakeup(&dev->dev);
 623         spin_unlock_irqrestore(&priv->bflock, flags);
 624
 625         return 0;
 626 }
 627 #endif
 628
 629 static void ethflow_to_filer_rules (struct gfar_private *priv, u64 ethflow)
 630 {
 631         u32 fcr = 0x0, fpr = FPR_FILER_MASK;
 632
 633         if (ethflow & RXH_L2DA) {
 634                 fcr = RQFCR_PID_DAH |RQFCR_CMP_NOMATCH |
 635                       RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0;
 636                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 637                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 638                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 639                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 640
 641                 fcr = RQFCR_PID_DAL | RQFCR_AND | RQFCR_CMP_NOMATCH |
 642                       RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0;
 643                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 644                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 645                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 646                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 647         }
 648
 649         if (ethflow & RXH_VLAN) {
 650                 fcr = RQFCR_PID_VID | RQFCR_CMP_NOMATCH | RQFCR_HASH |
 651                       RQFCR_AND | RQFCR_HASHTBL_0;
 652                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 653                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 654                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 655                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 656         }
 657
 658         if (ethflow & RXH_IP_SRC) {
 659                 fcr = RQFCR_PID_SIA | RQFCR_CMP_NOMATCH | RQFCR_HASH |
 660                       RQFCR_AND | RQFCR_HASHTBL_0;
 661                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 662                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 663                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 664                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 665         }
 666
 667         if (ethflow & (RXH_IP_DST)) {
 668                 fcr = RQFCR_PID_DIA | RQFCR_CMP_NOMATCH | RQFCR_HASH |
 669                       RQFCR_AND | RQFCR_HASHTBL_0;
 670                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 671                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 672                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 673                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 674         }
 675
 676         if (ethflow & RXH_L3_PROTO) {
 677                 fcr = RQFCR_PID_L4P | RQFCR_CMP_NOMATCH | RQFCR_HASH |
 678                       RQFCR_AND | RQFCR_HASHTBL_0;
 679                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 680                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 681                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 682                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 683         }
 684
 685         if (ethflow & RXH_L4_B_0_1) {
 686                 fcr = RQFCR_PID_SPT | RQFCR_CMP_NOMATCH | RQFCR_HASH |
 687                       RQFCR_AND | RQFCR_HASHTBL_0;
 688                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 689                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 690                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 691                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 692         }
 693
 694         if (ethflow & RXH_L4_B_2_3) {
 695                 fcr = RQFCR_PID_DPT | RQFCR_CMP_NOMATCH | RQFCR_HASH |
 696                       RQFCR_AND | RQFCR_HASHTBL_0;
 697                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 698                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 699                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 700                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 701         }
 702 }
 703
 704 static int gfar_ethflow_to_filer_table(struct gfar_private *priv, u64 ethflow,
 705                                        u64 class)
 706 {
 707         unsigned int last_rule_idx = priv->cur_filer_idx;
 708         unsigned int cmp_rqfpr;
 709         unsigned int *local_rqfpr;
 710         unsigned int *local_rqfcr;
 711         int i = 0x0, k = 0x0;
 712         int j = MAX_FILER_IDX, l = 0x0;
 713         int ret = 1;
 714
 715         local_rqfpr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int),
 716                                     GFP_KERNEL);
 717         local_rqfcr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int),
 718                                     GFP_KERNEL);
 719         if (!local_rqfpr || !local_rqfcr) {
 720                 ret = 0;
 721                 goto err;
 722         }
 723
 724         switch (class) {
 725         case TCP_V4_FLOW:
 726                 cmp_rqfpr = RQFPR_IPV4 |RQFPR_TCP;
 727                 break;
 728         case UDP_V4_FLOW:
 729                 cmp_rqfpr = RQFPR_IPV4 |RQFPR_UDP;
 730                 break;
 731         case TCP_V6_FLOW:
 732                 cmp_rqfpr = RQFPR_IPV6 |RQFPR_TCP;
 733                 break;
 734         case UDP_V6_FLOW:
 735                 cmp_rqfpr = RQFPR_IPV6 |RQFPR_UDP;
 736                 break;
 737         default:
 738                 netdev_err(priv->ndev,
 739                            "Right now this class is not supported\n");
 740                 ret = 0;
 741                 goto err;
 742         }
 743
 744         for (i = 0; i < MAX_FILER_IDX + 1; i++) {
 745                 local_rqfpr[j] = priv->ftp_rqfpr[i];
 746                 local_rqfcr[j] = priv->ftp_rqfcr[i];
 747                 j--;
 748                 if ((priv->ftp_rqfcr[i] ==
 749                      (RQFCR_PID_PARSE | RQFCR_CLE | RQFCR_AND)) &&
 750                     (priv->ftp_rqfpr[i] == cmp_rqfpr))
 751                         break;
 752         }
 753
 754         if (i == MAX_FILER_IDX + 1) {
 755                 netdev_err(priv->ndev,
 756                            "No parse rule found, can't create hash rules\n");
 757                 ret = 0;
 758                 goto err;
 759         }
 760
 761         /* If a match was found, then it begins the starting of a cluster rule
 762          * if it was already programmed, we need to overwrite these rules
 763          */
 764         for (l = i+1; l < MAX_FILER_IDX; l++) {
 765                 if ((priv->ftp_rqfcr[l] & RQFCR_CLE) &&
 766                     !(priv->ftp_rqfcr[l] & RQFCR_AND)) {
 767                         priv->ftp_rqfcr[l] = RQFCR_CLE | RQFCR_CMP_EXACT |
 768                                              RQFCR_HASHTBL_0 | RQFCR_PID_MASK;
 769                         priv->ftp_rqfpr[l] = FPR_FILER_MASK;
 770                         gfar_write_filer(priv, l, priv->ftp_rqfcr[l],
 771                                          priv->ftp_rqfpr[l]);
 772                         break;
 773                 }
 774
 775                 if (!(priv->ftp_rqfcr[l] & RQFCR_CLE) &&
 776                         (priv->ftp_rqfcr[l] & RQFCR_AND))
 777                         continue;
 778                 else {
 779                         local_rqfpr[j] = priv->ftp_rqfpr[l];
 780                         local_rqfcr[j] = priv->ftp_rqfcr[l];
 781                         j--;
 782                 }
 783         }
 784
 785         priv->cur_filer_idx = l - 1;
 786         last_rule_idx = l;
 787
 788         /* hash rules */
 789         ethflow_to_filer_rules(priv, ethflow);
 790
 791         /* Write back the popped out rules again */
 792         for (k = j+1; k < MAX_FILER_IDX; k++) {
 793                 priv->ftp_rqfpr[priv->cur_filer_idx] = local_rqfpr[k];
 794                 priv->ftp_rqfcr[priv->cur_filer_idx] = local_rqfcr[k];
 795                 gfar_write_filer(priv, priv->cur_filer_idx,
 796                                  local_rqfcr[k], local_rqfpr[k]);
 797                 if (!priv->cur_filer_idx)
 798                         break;
 799                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 800         }
 801
 802 err:
 803         kfree(local_rqfcr);
 804         kfree(local_rqfpr);
 805         return ret;
 806 }
 807
 808 static int gfar_set_hash_opts(struct gfar_private *priv,
 809                               struct ethtool_rxnfc *cmd)
 810 {
 811         /* write the filer rules here */
 812         if (!gfar_ethflow_to_filer_table(priv, cmd->data, cmd->flow_type))
 813                 return -EINVAL;
 814
 815         return 0;
 816 }
 817
 818 static int gfar_check_filer_hardware(struct gfar_private *priv)
 819 {
 820         struct gfar __iomem *regs = NULL;
 821         u32 i;
 822
 823         regs = priv->gfargrp[0].regs;
 824
 825         /* Check if we are in FIFO mode */
 826         i = gfar_read(&regs->ecntrl);
 827         i &= ECNTRL_FIFM;
 828         if (i == ECNTRL_FIFM) {
 829                 netdev_notice(priv->ndev, "Interface in FIFO mode\n");
 830                 i = gfar_read(&regs->rctrl);
 831                 i &= RCTRL_PRSDEP_MASK | RCTRL_PRSFM;
 832                 if (i == (RCTRL_PRSDEP_MASK | RCTRL_PRSFM)) {
 833                         netdev_info(priv->ndev,
 834                                     "Receive Queue Filtering enabled\n");
 835                 } else {
 836                         netdev_warn(priv->ndev,
 837                                     "Receive Queue Filtering disabled\n");
 838                         return -EOPNOTSUPP;
 839                 }
 840         }
 841         /* Or in standard mode */
 842         else {
 843                 i = gfar_read(&regs->rctrl);
 844                 i &= RCTRL_PRSDEP_MASK;
 845                 if (i == RCTRL_PRSDEP_MASK) {
 846                         netdev_info(priv->ndev,
 847                                     "Receive Queue Filtering enabled\n");
 848                 } else {
 849                         netdev_warn(priv->ndev,
 850                                     "Receive Queue Filtering disabled\n");
 851                         return -EOPNOTSUPP;
 852                 }
 853         }
 854
 855         /* Sets the properties for arbitrary filer rule
 856          * to the first 4 Layer 4 Bytes
 857          */
 858         regs->rbifx = 0xC0C1C2C3;
 859         return 0;
 860 }
 861
 862 static int gfar_comp_asc(const void *a, const void *b)
 863 {
 864         return memcmp(a, b, 4);
 865 }
 866
 867 static int gfar_comp_desc(const void *a, const void *b)
 868 {
 869         return -memcmp(a, b, 4);
 870 }
 871
 872 static void gfar_swap(void *a, void *b, int size)
 873 {
 874         u32 *_a = a;
 875         u32 *_b = b;
 876
 877         swap(_a[0], _b[0]);
 878         swap(_a[1], _b[1]);
 879         swap(_a[2], _b[2]);
 880         swap(_a[3], _b[3]);
 881 }
 882
 883 /* Write a mask to filer cache */
 884 static void gfar_set_mask(u32 mask, struct filer_table *tab)
 885 {
 886         tab->fe[tab->index].ctrl = RQFCR_AND | RQFCR_PID_MASK | RQFCR_CMP_EXACT;
 887         tab->fe[tab->index].prop = mask;
 888         tab->index++;
 889 }
 890
 891 /* Sets parse bits (e.g. IP or TCP) */
 892 static void gfar_set_parse_bits(u32 value, u32 mask, struct filer_table *tab)
 893 {
 894         gfar_set_mask(mask, tab);
 895         tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_PID_PARSE |
 896                                    RQFCR_AND;
 897         tab->fe[tab->index].prop = value;
 898         tab->index++;
 899 }
 900
 901 static void gfar_set_general_attribute(u32 value, u32 mask, u32 flag,
 902                                        struct filer_table *tab)
 903 {
 904         gfar_set_mask(mask, tab);
 905         tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_AND | flag;
 906         tab->fe[tab->index].prop = value;
 907         tab->index++;
 908 }
 909
 910 /* For setting a tuple of value and mask of type flag
 911  * Example:
 912  * IP-Src = 10.0.0.0/255.0.0.0
 913  * value: 0x0A000000 mask: FF000000 flag: RQFPR_IPV4
 914  *
 915  * Ethtool gives us a value=0 and mask=~0 for don't care a tuple
 916  * For a don't care mask it gives us a 0
 917  *
 918  * The check if don't care and the mask adjustment if mask=0 is done for VLAN
 919  * and MAC stuff on an upper level (due to missing information on this level).
 920  * For these guys we can discard them if they are value=0 and mask=0.
 921  *
 922  * Further the all masks are one-padded for better hardware efficiency.
 923  */
 924 static void gfar_set_attribute(u32 value, u32 mask, u32 flag,
 925                                struct filer_table *tab)
 926 {
 927         switch (flag) {
 928                 /* 3bit */
 929         case RQFCR_PID_PRI:
 930                 if (!(value | mask))
 931                         return;
 932                 mask |= RQFCR_PID_PRI_MASK;
 933                 break;
 934                 /* 8bit */
 935         case RQFCR_PID_L4P:
 936         case RQFCR_PID_TOS:
 937                 if (!~(mask | RQFCR_PID_L4P_MASK))
 938                         return;
 939                 if (!mask)
 940                         mask = ~0;
 941                 else
 942                         mask |= RQFCR_PID_L4P_MASK;
 943                 break;
 944                 /* 12bit */
 945         case RQFCR_PID_VID:
 946                 if (!(value | mask))
 947                         return;
 948                 mask |= RQFCR_PID_VID_MASK;
 949                 break;
 950                 /* 16bit */
 951         case RQFCR_PID_DPT:
 952         case RQFCR_PID_SPT:
 953         case RQFCR_PID_ETY:
 954                 if (!~(mask | RQFCR_PID_PORT_MASK))
 955                         return;
 956                 if (!mask)
 957                         mask = ~0;
 958                 else
 959                         mask |= RQFCR_PID_PORT_MASK;
 960                 break;
 961                 /* 24bit */
 962         case RQFCR_PID_DAH:
 963         case RQFCR_PID_DAL:
 964         case RQFCR_PID_SAH:
 965         case RQFCR_PID_SAL:
 966                 if (!(value | mask))
 967                         return;
 968                 mask |= RQFCR_PID_MAC_MASK;
 969                 break;
 970                 /* for all real 32bit masks */
 971         default:
 972                 if (!~mask)
 973                         return;
 974                 if (!mask)
 975                         mask = ~0;
 976                 break;
 977         }
 978         gfar_set_general_attribute(value, mask, flag, tab);
 979 }
 980
 981 /* Translates value and mask for UDP, TCP or SCTP */
 982 static void gfar_set_basic_ip(struct ethtool_tcpip4_spec *value,
 983                               struct ethtool_tcpip4_spec *mask,
 984                               struct filer_table *tab)
 985 {
 986         gfar_set_attribute(value->ip4src, mask->ip4src, RQFCR_PID_SIA, tab);
 987         gfar_set_attribute(value->ip4dst, mask->ip4dst, RQFCR_PID_DIA, tab);
 988         gfar_set_attribute(value->pdst, mask->pdst, RQFCR_PID_DPT, tab);
 989         gfar_set_attribute(value->psrc, mask->psrc, RQFCR_PID_SPT, tab);
 990         gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab);
 991 }
 992
 993 /* Translates value and mask for RAW-IP4 */
 994 static void gfar_set_user_ip(struct ethtool_usrip4_spec *value,
 995                              struct ethtool_usrip4_spec *mask,
 996                              struct filer_table *tab)
 997 {
 998         gfar_set_attribute(value->ip4src, mask->ip4src, RQFCR_PID_SIA, tab);
 999         gfar_set_attribute(value->ip4dst, mask->ip4dst, RQFCR_PID_DIA, tab);
1000         gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab);
1001         gfar_set_attribute(value->proto, mask->proto, RQFCR_PID_L4P, tab);
1002         gfar_set_attribute(value->l4_4_bytes, mask->l4_4_bytes, RQFCR_PID_ARB,
1003                            tab);
1004
1005 }
1006
1007 /* Translates value and mask for ETHER spec */
1008 static void gfar_set_ether(struct ethhdr *value, struct ethhdr *mask,
1009                            struct filer_table *tab)
1010 {
1011         u32 upper_temp_mask = 0;
1012         u32 lower_temp_mask = 0;
1013
1014         /* Source address */
1015         if (!is_broadcast_ether_addr(mask->h_source)) {
1016                 if (is_zero_ether_addr(mask->h_source)) {
1017                         upper_temp_mask = 0xFFFFFFFF;
1018                         lower_temp_mask = 0xFFFFFFFF;
1019                 } else {
1020                         upper_temp_mask = mask->h_source[0] << 16 |
1021                                           mask->h_source[1] << 8  |
1022                                           mask->h_source[2];
1023                         lower_temp_mask = mask->h_source[3] << 16 |
1024                                           mask->h_source[4] << 8  |
1025                                           mask->h_source[5];
1026                 }
1027                 /* Upper 24bit */
1028                 gfar_set_attribute(value->h_source[0] << 16 |
1029                                    value->h_source[1] << 8  |
1030                                    value->h_source[2],
1031                                    upper_temp_mask, RQFCR_PID_SAH, tab);
1032                 /* And the same for the lower part */
1033                 gfar_set_attribute(value->h_source[3] << 16 |
1034                                    value->h_source[4] << 8  |
1035                                    value->h_source[5],
1036                                    lower_temp_mask, RQFCR_PID_SAL, tab);
1037         }
1038         /* Destination address */
1039         if (!is_broadcast_ether_addr(mask->h_dest)) {
1040                 /* Special for destination is limited broadcast */
1041                 if ((is_broadcast_ether_addr(value->h_dest) &&
1042                     is_zero_ether_addr(mask->h_dest))) {
1043                         gfar_set_parse_bits(RQFPR_EBC, RQFPR_EBC, tab);
1044                 } else {
1045                         if (is_zero_ether_addr(mask->h_dest)) {
1046                                 upper_temp_mask = 0xFFFFFFFF;
1047                                 lower_temp_mask = 0xFFFFFFFF;
1048                         } else {
1049                                 upper_temp_mask = mask->h_dest[0] << 16 |
1050                                                   mask->h_dest[1] << 8  |
1051                                                   mask->h_dest[2];
1052                                 lower_temp_mask = mask->h_dest[3] << 16 |
1053                                                   mask->h_dest[4] << 8  |
1054                                                   mask->h_dest[5];
1055                         }
1056
1057                         /* Upper 24bit */
1058                         gfar_set_attribute(value->h_dest[0] << 16 |
1059                                            value->h_dest[1] << 8  |
1060                                            value->h_dest[2],
1061                                            upper_temp_mask, RQFCR_PID_DAH, tab);
1062                         /* And the same for the lower part */
1063                         gfar_set_attribute(value->h_dest[3] << 16 |
1064                                            value->h_dest[4] << 8  |
1065                                            value->h_dest[5],
1066                                            lower_temp_mask, RQFCR_PID_DAL, tab);
1067                 }
1068         }
1069
1070         gfar_set_attribute(value->h_proto, mask->h_proto, RQFCR_PID_ETY, tab);
1071 }
1072
1073 /* Convert a rule to binary filter format of gianfar */
1074 static int gfar_convert_to_filer(struct ethtool_rx_flow_spec *rule,
1075                                  struct filer_table *tab)
1076 {
1077         u32 vlan = 0, vlan_mask = 0;
1078         u32 id = 0, id_mask = 0;
1079         u32 cfi = 0, cfi_mask = 0;
1080         u32 prio = 0, prio_mask = 0;
1081         u32 old_index = tab->index;
1082
1083         /* Check if vlan is wanted */
1084         if ((rule->flow_type & FLOW_EXT) && (rule->m_ext.vlan_tci != 0xFFFF)) {
1085                 if (!rule->m_ext.vlan_tci)
1086                         rule->m_ext.vlan_tci = 0xFFFF;
1087
1088                 vlan = RQFPR_VLN;
1089                 vlan_mask = RQFPR_VLN;
1090
1091                 /* Separate the fields */
1092                 id = rule->h_ext.vlan_tci & VLAN_VID_MASK;
1093                 id_mask = rule->m_ext.vlan_tci & VLAN_VID_MASK;
1094                 cfi = rule->h_ext.vlan_tci & VLAN_CFI_MASK;
1095                 cfi_mask = rule->m_ext.vlan_tci & VLAN_CFI_MASK;
1096                 prio = (rule->h_ext.vlan_tci & VLAN_PRIO_MASK) >>
1097                        VLAN_PRIO_SHIFT;
1098                 prio_mask = (rule->m_ext.vlan_tci & VLAN_PRIO_MASK) >>
1099                             VLAN_PRIO_SHIFT;
1100
1101                 if (cfi == VLAN_TAG_PRESENT && cfi_mask == VLAN_TAG_PRESENT) {
1102                         vlan |= RQFPR_CFI;
1103                         vlan_mask |= RQFPR_CFI;
1104                 } else if (cfi != VLAN_TAG_PRESENT &&
1105                            cfi_mask == VLAN_TAG_PRESENT) {
1106                         vlan_mask |= RQFPR_CFI;
1107                 }
1108         }
1109
1110         switch (rule->flow_type & ~FLOW_EXT) {
1111         case TCP_V4_FLOW:
1112                 gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_TCP | vlan,
1113                                     RQFPR_IPV4 | RQFPR_TCP | vlan_mask, tab);
1114                 gfar_set_basic_ip(&rule->h_u.tcp_ip4_spec,
1115                                   &rule->m_u.tcp_ip4_spec, tab);
1116                 break;
1117         case UDP_V4_FLOW:
1118                 gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_UDP | vlan,
1119                                     RQFPR_IPV4 | RQFPR_UDP | vlan_mask, tab);
1120                 gfar_set_basic_ip(&rule->h_u.udp_ip4_spec,
1121                                   &rule->m_u.udp_ip4_spec, tab);
1122                 break;
1123         case SCTP_V4_FLOW:
1124                 gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask,
1125                                     tab);
1126                 gfar_set_attribute(132, 0, RQFCR_PID_L4P, tab);
1127                 gfar_set_basic_ip((struct ethtool_tcpip4_spec *)&rule->h_u,
1128                                   (struct ethtool_tcpip4_spec *)&rule->m_u,
1129                                   tab);
1130                 break;
1131         case IP_USER_FLOW:
1132                 gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask,
1133                                     tab);
1134                 gfar_set_user_ip((struct ethtool_usrip4_spec *) &rule->h_u,
1135                                  (struct ethtool_usrip4_spec *) &rule->m_u,
1136                                  tab);
1137                 break;
1138         case ETHER_FLOW:
1139                 if (vlan)
1140                         gfar_set_parse_bits(vlan, vlan_mask, tab);
1141                 gfar_set_ether((struct ethhdr *) &rule->h_u,
1142                                (struct ethhdr *) &rule->m_u, tab);
1143                 break;
1144         default:
1145                 return -1;
1146         }
1147
1148         /* Set the vlan attributes in the end */
1149         if (vlan) {
1150                 gfar_set_attribute(id, id_mask, RQFCR_PID_VID, tab);
1151                 gfar_set_attribute(prio, prio_mask, RQFCR_PID_PRI, tab);
1152         }
1153
1154         /* If there has been nothing written till now, it must be a default */
1155         if (tab->index == old_index) {
1156                 gfar_set_mask(0xFFFFFFFF, tab);
1157                 tab->fe[tab->index].ctrl = 0x20;
1158                 tab->fe[tab->index].prop = 0x0;
1159                 tab->index++;
1160         }
1161
1162         /* Remove last AND */
1163         tab->fe[tab->index - 1].ctrl &= (~RQFCR_AND);
1164
1165         /* Specify which queue to use or to drop */
1166         if (rule->ring_cookie == RX_CLS_FLOW_DISC)
1167                 tab->fe[tab->index - 1].ctrl |= RQFCR_RJE;
1168         else
1169                 tab->fe[tab->index - 1].ctrl |= (rule->ring_cookie << 10);
1170
1171         /* Only big enough entries can be clustered */
1172         if (tab->index > (old_index + 2)) {
1173                 tab->fe[old_index + 1].ctrl |= RQFCR_CLE;
1174                 tab->fe[tab->index - 1].ctrl |= RQFCR_CLE;
1175         }
1176
1177         /* In rare cases the cache can be full while there is
1178          * free space in hw
1179          */
1180         if (tab->index > MAX_FILER_CACHE_IDX - 1)
1181                 return -EBUSY;
1182
1183         return 0;
1184 }
1185
1186 /* Copy size filer entries */
1187 static void gfar_copy_filer_entries(struct gfar_filer_entry dst[0],
1188                                     struct gfar_filer_entry src[0], s32 size)
1189 {
1190         while (size > 0) {
1191                 size--;
1192                 dst[size].ctrl = src[size].ctrl;
1193                 dst[size].prop = src[size].prop;
1194         }
1195 }
1196
1197 /* Delete the contents of the filer-table between start and end
1198  * and collapse them
1199  */
1200 static int gfar_trim_filer_entries(u32 begin, u32 end, struct filer_table *tab)
1201 {
1202         int length;
1203
1204         if (end > MAX_FILER_CACHE_IDX || end < begin)
1205                 return -EINVAL;
1206
1207         end++;
1208         length = end - begin;
1209
1210         /* Copy */
1211         while (end < tab->index) {
1212                 tab->fe[begin].ctrl = tab->fe[end].ctrl;
1213                 tab->fe[begin++].prop = tab->fe[end++].prop;
1214
1215         }
1216         /* Fill up with don't cares */
1217         while (begin < tab->index) {
1218                 tab->fe[begin].ctrl = 0x60;
1219                 tab->fe[begin].prop = 0xFFFFFFFF;
1220                 begin++;
1221         }
1222
1223         tab->index -= length;
1224         return 0;
1225 }
1226
1227 /* Make space on the wanted location */
1228 static int gfar_expand_filer_entries(u32 begin, u32 length,
1229                                      struct filer_table *tab)
1230 {
1231         if (length == 0 || length + tab->index > MAX_FILER_CACHE_IDX ||
1232             begin > MAX_FILER_CACHE_IDX)
1233                 return -EINVAL;
1234
1235         gfar_copy_filer_entries(&(tab->fe[begin + length]), &(tab->fe[begin]),
1236                                 tab->index - length + 1);
1237
1238         tab->index += length;
1239         return 0;
1240 }
1241
1242 static int gfar_get_next_cluster_start(int start, struct filer_table *tab)
1243 {
1244         for (; (start < tab->index) && (start < MAX_FILER_CACHE_IDX - 1);
1245              start++) {
1246                 if ((tab->fe[start].ctrl & (RQFCR_AND | RQFCR_CLE)) ==
1247                     (RQFCR_AND | RQFCR_CLE))
1248                         return start;
1249         }
1250         return -1;
1251 }
1252
1253 static int gfar_get_next_cluster_end(int start, struct filer_table *tab)
1254 {
1255         for (; (start < tab->index) && (start < MAX_FILER_CACHE_IDX - 1);
1256              start++) {
1257                 if ((tab->fe[start].ctrl & (RQFCR_AND | RQFCR_CLE)) ==
1258                     (RQFCR_CLE))
1259                         return start;
1260         }
1261         return -1;
1262 }
1263
1264 /* Uses hardwares clustering option to reduce
1265  * the number of filer table entries
1266  */
1267 static void gfar_cluster_filer(struct filer_table *tab)
1268 {
1269         s32 i = -1, j, iend, jend;
1270
1271         while ((i = gfar_get_next_cluster_start(++i, tab)) != -1) {
1272                 j = i;
1273                 while ((j = gfar_get_next_cluster_start(++j, tab)) != -1) {
1274                         /* The cluster entries self and the previous one
1275                          * (a mask) must be identical!
1276                          */
1277                         if (tab->fe[i].ctrl != tab->fe[j].ctrl)
1278                                 break;
1279                         if (tab->fe[i].prop != tab->fe[j].prop)
1280                                 break;
1281                         if (tab->fe[i - 1].ctrl != tab->fe[j - 1].ctrl)
1282                                 break;
1283                         if (tab->fe[i - 1].prop != tab->fe[j - 1].prop)
1284                                 break;
1285                         iend = gfar_get_next_cluster_end(i, tab);
1286                         jend = gfar_get_next_cluster_end(j, tab);
1287                         if (jend == -1 || iend == -1)
1288                                 break;
1289
1290                         /* First we make some free space, where our cluster
1291                          * element should be. Then we copy it there and finally
1292                          * delete in from its old location.
1293                          */
1294                         if (gfar_expand_filer_entries(iend, (jend - j), tab) ==
1295                             -EINVAL)
1296                                 break;
1297
1298                         gfar_copy_filer_entries(&(tab->fe[iend + 1]),
1299                                                 &(tab->fe[jend + 1]), jend - j);
1300
1301                         if (gfar_trim_filer_entries(jend - 1,
1302                                                     jend + (jend - j),
1303                                                     tab) == -EINVAL)
1304                                 return;
1305
1306                         /* Mask out cluster bit */
1307                         tab->fe[iend].ctrl &= ~(RQFCR_CLE);
1308                 }
1309         }
1310 }
1311
1312 /* Swaps the masked bits of a1<>a2 and b1<>b2 */
1313 static void gfar_swap_bits(struct gfar_filer_entry *a1,
1314                            struct gfar_filer_entry *a2,
1315                            struct gfar_filer_entry *b1,
1316                            struct gfar_filer_entry *b2, u32 mask)
1317 {
1318         u32 temp[4];
1319         temp[0] = a1->ctrl & mask;
1320         temp[1] = a2->ctrl & mask;
1321         temp[2] = b1->ctrl & mask;
1322         temp[3] = b2->ctrl & mask;
1323
1324         a1->ctrl &= ~mask;
1325         a2->ctrl &= ~mask;
1326         b1->ctrl &= ~mask;
1327         b2->ctrl &= ~mask;
1328
1329         a1->ctrl |= temp[1];
1330         a2->ctrl |= temp[0];
1331         b1->ctrl |= temp[3];
1332         b2->ctrl |= temp[2];
1333 }
1334
1335 /* Generate a list consisting of masks values with their start and
1336  * end of validity and block as indicator for parts belonging
1337  * together (glued by ANDs) in mask_table
1338  */
1339 static u32 gfar_generate_mask_table(struct gfar_mask_entry *mask_table,
1340                                     struct filer_table *tab)
1341 {
1342         u32 i, and_index = 0, block_index = 1;
1343
1344         for (i = 0; i < tab->index; i++) {
1345
1346                 /* LSByte of control = 0 sets a mask */
1347                 if (!(tab->fe[i].ctrl & 0xF)) {
1348                         mask_table[and_index].mask = tab->fe[i].prop;
1349                         mask_table[and_index].start = i;
1350                         mask_table[and_index].block = block_index;
1351                         if (and_index >= 1)
1352                                 mask_table[and_index - 1].end = i - 1;
1353                         and_index++;
1354                 }
1355                 /* cluster starts and ends will be separated because they should
1356                  * hold their position
1357                  */
1358                 if (tab->fe[i].ctrl & RQFCR_CLE)
1359                         block_index++;
1360                 /* A not set AND indicates the end of a depended block */
1361                 if (!(tab->fe[i].ctrl & RQFCR_AND))
1362                         block_index++;
1363         }
1364
1365         mask_table[and_index - 1].end = i - 1;
1366
1367         return and_index;
1368 }
1369
1370 /* Sorts the entries of mask_table by the values of the masks.
1371  * Important: The 0xFF80 flags of the first and last entry of a
1372  * block must hold their position (which queue, CLusterEnable, ReJEct,
1373  * AND)
1374  */
1375 static void gfar_sort_mask_table(struct gfar_mask_entry *mask_table,
1376                                  struct filer_table *temp_table, u32 and_index)
1377 {
1378         /* Pointer to compare function (_asc or _desc) */
1379         int (*gfar_comp)(const void *, const void *);
1380
1381         u32 i, size = 0, start = 0, prev = 1;
1382         u32 old_first, old_last, new_first, new_last;
1383
1384         gfar_comp = &gfar_comp_desc;
1385
1386         for (i = 0; i < and_index; i++) {
1387                 if (prev != mask_table[i].block) {
1388                         old_first = mask_table[start].start + 1;
1389                         old_last = mask_table[i - 1].end;
1390                         sort(mask_table + start, size,
1391                              sizeof(struct gfar_mask_entry),
1392                              gfar_comp, &gfar_swap);
1393
1394                         /* Toggle order for every block. This makes the
1395                          * thing more efficient!
1396                          */
1397                         if (gfar_comp == gfar_comp_desc)
1398                                 gfar_comp = &gfar_comp_asc;
1399                         else
1400                                 gfar_comp = &gfar_comp_desc;
1401
1402                         new_first = mask_table[start].start + 1;
1403                         new_last = mask_table[i - 1].end;
1404
1405                         gfar_swap_bits(&temp_table->fe[new_first],
1406                                        &temp_table->fe[old_first],
1407                                        &temp_table->fe[new_last],
1408                                        &temp_table->fe[old_last],
1409                                        RQFCR_QUEUE | RQFCR_CLE |
1410                                        RQFCR_RJE | RQFCR_AND);
1411
1412                         start = i;
1413                         size = 0;
1414                 }
1415                 size++;
1416                 prev = mask_table[i].block;
1417         }
1418 }
1419
1420 /* Reduces the number of masks needed in the filer table to save entries
1421  * This is done by sorting the masks of a depended block. A depended block is
1422  * identified by gluing ANDs or CLE. The sorting order toggles after every
1423  * block. Of course entries in scope of a mask must change their location with
1424  * it.
1425  */
1426 static int gfar_optimize_filer_masks(struct filer_table *tab)
1427 {
1428         struct filer_table *temp_table;
1429         struct gfar_mask_entry *mask_table;
1430
1431         u32 and_index = 0, previous_mask = 0, i = 0, j = 0, size = 0;
1432         s32 ret = 0;
1433
1434         /* We need a copy of the filer table because
1435          * we want to change its order
1436          */
1437         temp_table = kmemdup(tab, sizeof(*temp_table), GFP_KERNEL);
1438         if (temp_table == NULL)
1439                 return -ENOMEM;
1440
1441         mask_table = kcalloc(MAX_FILER_CACHE_IDX / 2 + 1,
1442                              sizeof(struct gfar_mask_entry), GFP_KERNEL);
1443
1444         if (mask_table == NULL) {
1445                 ret = -ENOMEM;
1446                 goto end;
1447         }
1448
1449         and_index = gfar_generate_mask_table(mask_table, tab);
1450
1451         gfar_sort_mask_table(mask_table, temp_table, and_index);
1452
1453         /* Now we can copy the data from our duplicated filer table to
1454          * the real one in the order the mask table says
1455          */
1456         for (i = 0; i < and_index; i++) {
1457                 size = mask_table[i].end - mask_table[i].start + 1;
1458                 gfar_copy_filer_entries(&(tab->fe[j]),
1459                                 &(temp_table->fe[mask_table[i].start]), size);
1460                 j += size;
1461         }
1462
1463         /* And finally we just have to check for duplicated masks and drop the
1464          * second ones
1465          */
1466         for (i = 0; i < tab->index && i < MAX_FILER_CACHE_IDX; i++) {
1467                 if (tab->fe[i].ctrl == 0x80) {
1468                         previous_mask = i++;
1469                         break;
1470                 }
1471         }
1472         for (; i < tab->index && i < MAX_FILER_CACHE_IDX; i++) {
1473                 if (tab->fe[i].ctrl == 0x80) {
1474                         if (tab->fe[i].prop == tab->fe[previous_mask].prop) {
1475                                 /* Two identical ones found!
1476                                  * So drop the second one!
1477                                  */
1478                                 gfar_trim_filer_entries(i, i, tab);
1479                         } else
1480                                 /* Not identical! */
1481                                 previous_mask = i;
1482                 }
1483         }
1484
1485         kfree(mask_table);
1486 end:    kfree(temp_table);
1487         return ret;
1488 }
1489
1490 /* Write the bit-pattern from software's buffer to hardware registers */
1491 static int gfar_write_filer_table(struct gfar_private *priv,
1492                                   struct filer_table *tab)
1493 {
1494         u32 i = 0;
1495         if (tab->index > MAX_FILER_IDX - 1)
1496                 return -EBUSY;
1497
1498         /* Avoid inconsistent filer table to be processed */
1499         lock_rx_qs(priv);
1500
1501         /* Fill regular entries */
1502         for (; i < MAX_FILER_IDX - 1 && (tab->fe[i].ctrl | tab->fe[i].ctrl);
1503              i++)
1504                 gfar_write_filer(priv, i, tab->fe[i].ctrl, tab->fe[i].prop);
1505         /* Fill the rest with fall-troughs */
1506         for (; i < MAX_FILER_IDX - 1; i++)
1507                 gfar_write_filer(priv, i, 0x60, 0xFFFFFFFF);
1508         /* Last entry must be default accept
1509          * because that's what people expect
1510          */
1511         gfar_write_filer(priv, i, 0x20, 0x0);
1512
1513         unlock_rx_qs(priv);
1514
1515         return 0;
1516 }
1517
1518 static int gfar_check_capability(struct ethtool_rx_flow_spec *flow,
1519                                  struct gfar_private *priv)
1520 {
1521
1522         if (flow->flow_type & FLOW_EXT) {
1523                 if (~flow->m_ext.data[0] || ~flow->m_ext.data[1])
1524                         netdev_warn(priv->ndev,
1525                                     "User-specific data not supported!\n");
1526                 if (~flow->m_ext.vlan_etype)
1527                         netdev_warn(priv->ndev,
1528                                     "VLAN-etype not supported!\n");
1529         }
1530         if (flow->flow_type == IP_USER_FLOW)
1531                 if (flow->h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4)
1532                         netdev_warn(priv->ndev,
1533                                     "IP-Version differing from IPv4 not supported!\n");
1534
1535         return 0;
1536 }
1537
1538 static int gfar_process_filer_changes(struct gfar_private *priv)
1539 {
1540         struct ethtool_flow_spec_container *j;
1541         struct filer_table *tab;
1542         s32 i = 0;
1543         s32 ret = 0;
1544
1545         /* So index is set to zero, too! */
1546         tab = kzalloc(sizeof(*tab), GFP_KERNEL);
1547         if (tab == NULL)
1548                 return -ENOMEM;
1549
1550         /* Now convert the existing filer data from flow_spec into
1551          * filer tables binary format
1552          */
1553         list_for_each_entry(j, &priv->rx_list.list, list) {
1554                 ret = gfar_convert_to_filer(&j->fs, tab);
1555                 if (ret == -EBUSY) {
1556                         netdev_err(priv->ndev,
1557                                    "Rule not added: No free space!\n");
1558                         goto end;
1559                 }
1560                 if (ret == -1) {
1561                         netdev_err(priv->ndev,
1562                                    "Rule not added: Unsupported Flow-type!\n");
1563                         goto end;
1564                 }
1565         }
1566
1567         i = tab->index;
1568
1569         /* Optimizations to save entries */
1570         gfar_cluster_filer(tab);
1571         gfar_optimize_filer_masks(tab);
1572
1573         pr_debug("\tSummary:\n"
1574                  "\tData on hardware: %d\n"
1575                  "\tCompression rate: %d%%\n",
1576                  tab->index, 100 - (100 * tab->index) / i);
1577
1578         /* Write everything to hardware */
1579         ret = gfar_write_filer_table(priv, tab);
1580         if (ret == -EBUSY) {
1581                 netdev_err(priv->ndev, "Rule not added: No free space!\n");
1582                 goto end;
1583         }
1584
1585 end:
1586         kfree(tab);
1587         return ret;
1588 }
1589
1590 static void gfar_invert_masks(struct ethtool_rx_flow_spec *flow)
1591 {
1592         u32 i = 0;
1593
1594         for (i = 0; i < sizeof(flow->m_u); i++)
1595                 flow->m_u.hdata[i] ^= 0xFF;
1596
1597         flow->m_ext.vlan_etype ^= 0xFFFF;
1598         flow->m_ext.vlan_tci ^= 0xFFFF;
1599         flow->m_ext.data[0] ^= ~0;
1600         flow->m_ext.data[1] ^= ~0;
1601 }
1602
1603 static int gfar_add_cls(struct gfar_private *priv,
1604                         struct ethtool_rx_flow_spec *flow)
1605 {
1606         struct ethtool_flow_spec_container *temp, *comp;
1607         int ret = 0;
1608
1609         temp = kmalloc(sizeof(*temp), GFP_KERNEL);
1610         if (temp == NULL)
1611                 return -ENOMEM;
1612         memcpy(&temp->fs, flow, sizeof(temp->fs));
1613
1614         gfar_invert_masks(&temp->fs);
1615         ret = gfar_check_capability(&temp->fs, priv);
1616         if (ret)
1617                 goto clean_mem;
1618         /* Link in the new element at the right @location */
1619         if (list_empty(&priv->rx_list.list)) {
1620                 ret = gfar_check_filer_hardware(priv);
1621                 if (ret != 0)
1622                         goto clean_mem;
1623                 list_add(&temp->list, &priv->rx_list.list);
1624                 goto process;
1625         } else {
1626                 list_for_each_entry(comp, &priv->rx_list.list, list) {
1627                         if (comp->fs.location > flow->location) {
1628                                 list_add_tail(&temp->list, &comp->list);
1629                                 goto process;
1630                         }
1631                         if (comp->fs.location == flow->location) {
1632                                 netdev_err(priv->ndev,
1633                                            "Rule not added: ID %d not free!\n",
1634                                            flow->location);
1635                                 ret = -EBUSY;
1636                                 goto clean_mem;
1637                         }
1638                 }
1639                 list_add_tail(&temp->list, &priv->rx_list.list);
1640         }
1641
1642 process:
1643         ret = gfar_process_filer_changes(priv);
1644         if (ret)
1645                 goto clean_list;
1646         priv->rx_list.count++;
1647         return ret;
1648
1649 clean_list:
1650         list_del(&temp->list);
1651 clean_mem:
1652         kfree(temp);
1653         return ret;
1654 }
1655
1656 static int gfar_del_cls(struct gfar_private *priv, u32 loc)
1657 {
1658         struct ethtool_flow_spec_container *comp;
1659         u32 ret = -EINVAL;
1660
1661         if (list_empty(&priv->rx_list.list))
1662                 return ret;
1663
1664         list_for_each_entry(comp, &priv->rx_list.list, list) {
1665                 if (comp->fs.location == loc) {
1666                         list_del(&comp->list);
1667                         kfree(comp);
1668                         priv->rx_list.count--;
1669                         gfar_process_filer_changes(priv);
1670                         ret = 0;
1671                         break;
1672                 }
1673         }
1674
1675         return ret;
1676 }
1677
1678 static int gfar_get_cls(struct gfar_private *priv, struct ethtool_rxnfc *cmd)
1679 {
1680         struct ethtool_flow_spec_container *comp;
1681         u32 ret = -EINVAL;
1682
1683         list_for_each_entry(comp, &priv->rx_list.list, list) {
1684                 if (comp->fs.location == cmd->fs.location) {
1685                         memcpy(&cmd->fs, &comp->fs, sizeof(cmd->fs));
1686                         gfar_invert_masks(&cmd->fs);
1687                         ret = 0;
1688                         break;
1689                 }
1690         }
1691
1692         return ret;
1693 }
1694
1695 static int gfar_get_cls_all(struct gfar_private *priv,
1696                             struct ethtool_rxnfc *cmd, u32 *rule_locs)
1697 {
1698         struct ethtool_flow_spec_container *comp;
1699         u32 i = 0;
1700
1701         list_for_each_entry(comp, &priv->rx_list.list, list) {
1702                 if (i == cmd->rule_cnt)
1703                         return -EMSGSIZE;
1704                 rule_locs[i] = comp->fs.location;
1705                 i++;
1706         }
1707
1708         cmd->data = MAX_FILER_IDX;
1709         cmd->rule_cnt = i;
1710
1711         return 0;
1712 }
1713
1714 static int gfar_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
1715 {
1716         struct gfar_private *priv = netdev_priv(dev);
1717         int ret = 0;
1718
1719         mutex_lock(&priv->rx_queue_access);
1720
1721         switch (cmd->cmd) {
1722         case ETHTOOL_SRXFH:
1723                 ret = gfar_set_hash_opts(priv, cmd);
1724                 break;
1725         case ETHTOOL_SRXCLSRLINS:
1726                 if ((cmd->fs.ring_cookie != RX_CLS_FLOW_DISC &&
1727                      cmd->fs.ring_cookie >= priv->num_rx_queues) ||
1728                     cmd->fs.location >= MAX_FILER_IDX) {
1729                         ret = -EINVAL;
1730                         break;
1731                 }
1732                 ret = gfar_add_cls(priv, &cmd->fs);
1733                 break;
1734         case ETHTOOL_SRXCLSRLDEL:
1735                 ret = gfar_del_cls(priv, cmd->fs.location);
1736                 break;
1737         default:
1738                 ret = -EINVAL;
1739         }
1740
1741         mutex_unlock(&priv->rx_queue_access);
1742
1743         return ret;
1744 }
1745
1746 static int gfar_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
1747                         u32 *rule_locs)
1748 {
1749         struct gfar_private *priv = netdev_priv(dev);
1750         int ret = 0;
1751
1752         switch (cmd->cmd) {
1753         case ETHTOOL_GRXRINGS:
1754                 cmd->data = priv->num_rx_queues;
1755                 break;
1756         case ETHTOOL_GRXCLSRLCNT:
1757                 cmd->rule_cnt = priv->rx_list.count;
1758                 break;
1759         case ETHTOOL_GRXCLSRULE:
1760                 ret = gfar_get_cls(priv, cmd);
1761                 break;
1762         case ETHTOOL_GRXCLSRLALL:
1763                 ret = gfar_get_cls_all(priv, cmd, rule_locs);
1764                 break;
1765         default:
1766                 ret = -EINVAL;
1767                 break;
1768         }
1769
1770         return ret;
1771 }
1772
1773 int gfar_phc_index = -1;
1774 EXPORT_SYMBOL(gfar_phc_index);
1775
1776 static int gfar_get_ts_info(struct net_device *dev,
1777                             struct ethtool_ts_info *info)
1778 {
1779         struct gfar_private *priv = netdev_priv(dev);
1780
1781         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER)) {
1782                 info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE |
1783                                         SOF_TIMESTAMPING_SOFTWARE;
1784                 info->phc_index = -1;
1785                 return 0;
1786         }
1787         info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
1788                                 SOF_TIMESTAMPING_RX_HARDWARE |
1789                                 SOF_TIMESTAMPING_RAW_HARDWARE;
1790         info->phc_index = gfar_phc_index;
1791         info->tx_types = (1 << HWTSTAMP_TX_OFF) |
1792                          (1 << HWTSTAMP_TX_ON);
1793         info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
1794                            (1 << HWTSTAMP_FILTER_ALL);
1795         return 0;
1796 }
1797
1798 const struct ethtool_ops gfar_ethtool_ops = {
1799         .get_settings = gfar_gsettings,
1800         .set_settings = gfar_ssettings,
1801         .get_drvinfo = gfar_gdrvinfo,
1802         .get_regs_len = gfar_reglen,
1803         .get_regs = gfar_get_regs,
1804         .get_link = ethtool_op_get_link,
1805         .get_coalesce = gfar_gcoalesce,
1806         .set_coalesce = gfar_scoalesce,
1807         .get_ringparam = gfar_gringparam,
1808         .set_ringparam = gfar_sringparam,
1809         .get_strings = gfar_gstrings,
1810         .get_sset_count = gfar_sset_count,
1811         .get_ethtool_stats = gfar_fill_stats,
1812         .get_msglevel = gfar_get_msglevel,
1813         .set_msglevel = gfar_set_msglevel,
1814 #ifdef CONFIG_PM
1815         .get_wol = gfar_get_wol,
1816         .set_wol = gfar_set_wol,
1817 #endif
1818         .set_rxnfc = gfar_set_nfc,
1819         .get_rxnfc = gfar_get_nfc,
1820         .get_ts_info = gfar_get_ts_info,
1821 };