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 <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/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                 pr_info("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                 pr_info("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                 pr_info("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                 pr_info("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_TX|NETIF_F_HW_VLAN_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                 pr_err("Right now this class is not supported\n");
 739                 ret = 0;
 740                 goto err;
 741         }
 742
 743         for (i = 0; i < MAX_FILER_IDX + 1; i++) {
 744                 local_rqfpr[j] = priv->ftp_rqfpr[i];
 745                 local_rqfcr[j] = priv->ftp_rqfcr[i];
 746                 j--;
 747                 if ((priv->ftp_rqfcr[i] ==
 748                      (RQFCR_PID_PARSE | RQFCR_CLE | RQFCR_AND)) &&
 749                     (priv->ftp_rqfpr[i] == cmp_rqfpr))
 750                         break;
 751         }
 752
 753         if (i == MAX_FILER_IDX + 1) {
 754                 pr_err("No parse rule found, can't create hash rules\n");
 755                 ret = 0;
 756                 goto err;
 757         }
 758
 759         /* If a match was found, then it begins the starting of a cluster rule
 760          * if it was already programmed, we need to overwrite these rules
 761          */
 762         for (l = i+1; l < MAX_FILER_IDX; l++) {
 763                 if ((priv->ftp_rqfcr[l] & RQFCR_CLE) &&
 764                     !(priv->ftp_rqfcr[l] & RQFCR_AND)) {
 765                         priv->ftp_rqfcr[l] = RQFCR_CLE | RQFCR_CMP_EXACT |
 766                                              RQFCR_HASHTBL_0 | RQFCR_PID_MASK;
 767                         priv->ftp_rqfpr[l] = FPR_FILER_MASK;
 768                         gfar_write_filer(priv, l, priv->ftp_rqfcr[l],
 769                                          priv->ftp_rqfpr[l]);
 770                         break;
 771                 }
 772
 773                 if (!(priv->ftp_rqfcr[l] & RQFCR_CLE) &&
 774                         (priv->ftp_rqfcr[l] & RQFCR_AND))
 775                         continue;
 776                 else {
 777                         local_rqfpr[j] = priv->ftp_rqfpr[l];
 778                         local_rqfcr[j] = priv->ftp_rqfcr[l];
 779                         j--;
 780                 }
 781         }
 782
 783         priv->cur_filer_idx = l - 1;
 784         last_rule_idx = l;
 785
 786         /* hash rules */
 787         ethflow_to_filer_rules(priv, ethflow);
 788
 789         /* Write back the popped out rules again */
 790         for (k = j+1; k < MAX_FILER_IDX; k++) {
 791                 priv->ftp_rqfpr[priv->cur_filer_idx] = local_rqfpr[k];
 792                 priv->ftp_rqfcr[priv->cur_filer_idx] = local_rqfcr[k];
 793                 gfar_write_filer(priv, priv->cur_filer_idx,
 794                                  local_rqfcr[k], local_rqfpr[k]);
 795                 if (!priv->cur_filer_idx)
 796                         break;
 797                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 798         }
 799
 800 err:
 801         kfree(local_rqfcr);
 802         kfree(local_rqfpr);
 803         return ret;
 804 }
 805
 806 static int gfar_set_hash_opts(struct gfar_private *priv,
 807                               struct ethtool_rxnfc *cmd)
 808 {
 809         /* write the filer rules here */
 810         if (!gfar_ethflow_to_filer_table(priv, cmd->data, cmd->flow_type))
 811                 return -EINVAL;
 812
 813         return 0;
 814 }
 815
 816 static int gfar_check_filer_hardware(struct gfar_private *priv)
 817 {
 818         struct gfar __iomem *regs = NULL;
 819         u32 i;
 820
 821         regs = priv->gfargrp[0].regs;
 822
 823         /* Check if we are in FIFO mode */
 824         i = gfar_read(&regs->ecntrl);
 825         i &= ECNTRL_FIFM;
 826         if (i == ECNTRL_FIFM) {
 827                 netdev_notice(priv->ndev, "Interface in FIFO mode\n");
 828                 i = gfar_read(&regs->rctrl);
 829                 i &= RCTRL_PRSDEP_MASK | RCTRL_PRSFM;
 830                 if (i == (RCTRL_PRSDEP_MASK | RCTRL_PRSFM)) {
 831                         netdev_info(priv->ndev,
 832                                     "Receive Queue Filtering enabled\n");
 833                 } else {
 834                         netdev_warn(priv->ndev,
 835                                     "Receive Queue Filtering disabled\n");
 836                         return -EOPNOTSUPP;
 837                 }
 838         }
 839         /* Or in standard mode */
 840         else {
 841                 i = gfar_read(&regs->rctrl);
 842                 i &= RCTRL_PRSDEP_MASK;
 843                 if (i == RCTRL_PRSDEP_MASK) {
 844                         netdev_info(priv->ndev,
 845                                     "Receive Queue Filtering enabled\n");
 846                 } else {
 847                         netdev_warn(priv->ndev,
 848                                     "Receive Queue Filtering disabled\n");
 849                         return -EOPNOTSUPP;
 850                 }
 851         }
 852
 853         /* Sets the properties for arbitrary filer rule
 854          * to the first 4 Layer 4 Bytes
 855          */
 856         regs->rbifx = 0xC0C1C2C3;
 857         return 0;
 858 }
 859
 860 static int gfar_comp_asc(const void *a, const void *b)
 861 {
 862         return memcmp(a, b, 4);
 863 }
 864
 865 static int gfar_comp_desc(const void *a, const void *b)
 866 {
 867         return -memcmp(a, b, 4);
 868 }
 869
 870 static void gfar_swap(void *a, void *b, int size)
 871 {
 872         u32 *_a = a;
 873         u32 *_b = b;
 874
 875         swap(_a[0], _b[0]);
 876         swap(_a[1], _b[1]);
 877         swap(_a[2], _b[2]);
 878         swap(_a[3], _b[3]);
 879 }
 880
 881 /* Write a mask to filer cache */
 882 static void gfar_set_mask(u32 mask, struct filer_table *tab)
 883 {
 884         tab->fe[tab->index].ctrl = RQFCR_AND | RQFCR_PID_MASK | RQFCR_CMP_EXACT;
 885         tab->fe[tab->index].prop = mask;
 886         tab->index++;
 887 }
 888
 889 /* Sets parse bits (e.g. IP or TCP) */
 890 static void gfar_set_parse_bits(u32 value, u32 mask, struct filer_table *tab)
 891 {
 892         gfar_set_mask(mask, tab);
 893         tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_PID_PARSE |
 894                                    RQFCR_AND;
 895         tab->fe[tab->index].prop = value;
 896         tab->index++;
 897 }
 898
 899 static void gfar_set_general_attribute(u32 value, u32 mask, u32 flag,
 900                                        struct filer_table *tab)
 901 {
 902         gfar_set_mask(mask, tab);
 903         tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_AND | flag;
 904         tab->fe[tab->index].prop = value;
 905         tab->index++;
 906 }
 907
 908 /* For setting a tuple of value and mask of type flag
 909  * Example:
 910  * IP-Src = 10.0.0.0/255.0.0.0
 911  * value: 0x0A000000 mask: FF000000 flag: RQFPR_IPV4
 912  *
 913  * Ethtool gives us a value=0 and mask=~0 for don't care a tuple
 914  * For a don't care mask it gives us a 0
 915  *
 916  * The check if don't care and the mask adjustment if mask=0 is done for VLAN
 917  * and MAC stuff on an upper level (due to missing information on this level).
 918  * For these guys we can discard them if they are value=0 and mask=0.
 919  *
 920  * Further the all masks are one-padded for better hardware efficiency.
 921  */
 922 static void gfar_set_attribute(u32 value, u32 mask, u32 flag,
 923                                struct filer_table *tab)
 924 {
 925         switch (flag) {
 926                 /* 3bit */
 927         case RQFCR_PID_PRI:
 928                 if (!(value | mask))
 929                         return;
 930                 mask |= RQFCR_PID_PRI_MASK;
 931                 break;
 932                 /* 8bit */
 933         case RQFCR_PID_L4P:
 934         case RQFCR_PID_TOS:
 935                 if (!~(mask | RQFCR_PID_L4P_MASK))
 936                         return;
 937                 if (!mask)
 938                         mask = ~0;
 939                 else
 940                         mask |= RQFCR_PID_L4P_MASK;
 941                 break;
 942                 /* 12bit */
 943         case RQFCR_PID_VID:
 944                 if (!(value | mask))
 945                         return;
 946                 mask |= RQFCR_PID_VID_MASK;
 947                 break;
 948                 /* 16bit */
 949         case RQFCR_PID_DPT:
 950         case RQFCR_PID_SPT:
 951         case RQFCR_PID_ETY:
 952                 if (!~(mask | RQFCR_PID_PORT_MASK))
 953                         return;
 954                 if (!mask)
 955                         mask = ~0;
 956                 else
 957                         mask |= RQFCR_PID_PORT_MASK;
 958                 break;
 959                 /* 24bit */
 960         case RQFCR_PID_DAH:
 961         case RQFCR_PID_DAL:
 962         case RQFCR_PID_SAH:
 963         case RQFCR_PID_SAL:
 964                 if (!(value | mask))
 965                         return;
 966                 mask |= RQFCR_PID_MAC_MASK;
 967                 break;
 968                 /* for all real 32bit masks */
 969         default:
 970                 if (!~mask)
 971                         return;
 972                 if (!mask)
 973                         mask = ~0;
 974                 break;
 975         }
 976         gfar_set_general_attribute(value, mask, flag, tab);
 977 }
 978
 979 /* Translates value and mask for UDP, TCP or SCTP */
 980 static void gfar_set_basic_ip(struct ethtool_tcpip4_spec *value,
 981                               struct ethtool_tcpip4_spec *mask,
 982                               struct filer_table *tab)
 983 {
 984         gfar_set_attribute(value->ip4src, mask->ip4src, RQFCR_PID_SIA, tab);
 985         gfar_set_attribute(value->ip4dst, mask->ip4dst, RQFCR_PID_DIA, tab);
 986         gfar_set_attribute(value->pdst, mask->pdst, RQFCR_PID_DPT, tab);
 987         gfar_set_attribute(value->psrc, mask->psrc, RQFCR_PID_SPT, tab);
 988         gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab);
 989 }
 990
 991 /* Translates value and mask for RAW-IP4 */
 992 static void gfar_set_user_ip(struct ethtool_usrip4_spec *value,
 993                              struct ethtool_usrip4_spec *mask,
 994                              struct filer_table *tab)
 995 {
 996         gfar_set_attribute(value->ip4src, mask->ip4src, RQFCR_PID_SIA, tab);
 997         gfar_set_attribute(value->ip4dst, mask->ip4dst, RQFCR_PID_DIA, tab);
 998         gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab);
 999         gfar_set_attribute(value->proto, mask->proto, RQFCR_PID_L4P, tab);
1000         gfar_set_attribute(value->l4_4_bytes, mask->l4_4_bytes, RQFCR_PID_ARB,
1001                            tab);
1002
1003 }
1004
1005 /* Translates value and mask for ETHER spec */
1006 static void gfar_set_ether(struct ethhdr *value, struct ethhdr *mask,
1007                            struct filer_table *tab)
1008 {
1009         u32 upper_temp_mask = 0;
1010         u32 lower_temp_mask = 0;
1011
1012         /* Source address */
1013         if (!is_broadcast_ether_addr(mask->h_source)) {
1014                 if (is_zero_ether_addr(mask->h_source)) {
1015                         upper_temp_mask = 0xFFFFFFFF;
1016                         lower_temp_mask = 0xFFFFFFFF;
1017                 } else {
1018                         upper_temp_mask = mask->h_source[0] << 16 |
1019                                           mask->h_source[1] << 8  |
1020                                           mask->h_source[2];
1021                         lower_temp_mask = mask->h_source[3] << 16 |
1022                                           mask->h_source[4] << 8  |
1023                                           mask->h_source[5];
1024                 }
1025                 /* Upper 24bit */
1026                 gfar_set_attribute(value->h_source[0] << 16 |
1027                                    value->h_source[1] << 8  |
1028                                    value->h_source[2],
1029                                    upper_temp_mask, RQFCR_PID_SAH, tab);
1030                 /* And the same for the lower part */
1031                 gfar_set_attribute(value->h_source[3] << 16 |
1032                                    value->h_source[4] << 8  |
1033                                    value->h_source[5],
1034                                    lower_temp_mask, RQFCR_PID_SAL, tab);
1035         }
1036         /* Destination address */
1037         if (!is_broadcast_ether_addr(mask->h_dest)) {
1038                 /* Special for destination is limited broadcast */
1039                 if ((is_broadcast_ether_addr(value->h_dest) &&
1040                     is_zero_ether_addr(mask->h_dest))) {
1041                         gfar_set_parse_bits(RQFPR_EBC, RQFPR_EBC, tab);
1042                 } else {
1043                         if (is_zero_ether_addr(mask->h_dest)) {
1044                                 upper_temp_mask = 0xFFFFFFFF;
1045                                 lower_temp_mask = 0xFFFFFFFF;
1046                         } else {
1047                                 upper_temp_mask = mask->h_dest[0] << 16 |
1048                                                   mask->h_dest[1] << 8  |
1049                                                   mask->h_dest[2];
1050                                 lower_temp_mask = mask->h_dest[3] << 16 |
1051                                                   mask->h_dest[4] << 8  |
1052                                                   mask->h_dest[5];
1053                         }
1054
1055                         /* Upper 24bit */
1056                         gfar_set_attribute(value->h_dest[0] << 16 |
1057                                            value->h_dest[1] << 8  |
1058                                            value->h_dest[2],
1059                                            upper_temp_mask, RQFCR_PID_DAH, tab);
1060                         /* And the same for the lower part */
1061                         gfar_set_attribute(value->h_dest[3] << 16 |
1062                                            value->h_dest[4] << 8  |
1063                                            value->h_dest[5],
1064                                            lower_temp_mask, RQFCR_PID_DAL, tab);
1065                 }
1066         }
1067
1068         gfar_set_attribute(value->h_proto, mask->h_proto, RQFCR_PID_ETY, tab);
1069 }
1070
1071 /* Convert a rule to binary filter format of gianfar */
1072 static int gfar_convert_to_filer(struct ethtool_rx_flow_spec *rule,
1073                                  struct filer_table *tab)
1074 {
1075         u32 vlan = 0, vlan_mask = 0;
1076         u32 id = 0, id_mask = 0;
1077         u32 cfi = 0, cfi_mask = 0;
1078         u32 prio = 0, prio_mask = 0;
1079         u32 old_index = tab->index;
1080
1081         /* Check if vlan is wanted */
1082         if ((rule->flow_type & FLOW_EXT) && (rule->m_ext.vlan_tci != 0xFFFF)) {
1083                 if (!rule->m_ext.vlan_tci)
1084                         rule->m_ext.vlan_tci = 0xFFFF;
1085
1086                 vlan = RQFPR_VLN;
1087                 vlan_mask = RQFPR_VLN;
1088
1089                 /* Separate the fields */
1090                 id = rule->h_ext.vlan_tci & VLAN_VID_MASK;
1091                 id_mask = rule->m_ext.vlan_tci & VLAN_VID_MASK;
1092                 cfi = rule->h_ext.vlan_tci & VLAN_CFI_MASK;
1093                 cfi_mask = rule->m_ext.vlan_tci & VLAN_CFI_MASK;
1094                 prio = (rule->h_ext.vlan_tci & VLAN_PRIO_MASK) >>
1095                        VLAN_PRIO_SHIFT;
1096                 prio_mask = (rule->m_ext.vlan_tci & VLAN_PRIO_MASK) >>
1097                             VLAN_PRIO_SHIFT;
1098
1099                 if (cfi == VLAN_TAG_PRESENT && cfi_mask == VLAN_TAG_PRESENT) {
1100                         vlan |= RQFPR_CFI;
1101                         vlan_mask |= RQFPR_CFI;
1102                 } else if (cfi != VLAN_TAG_PRESENT &&
1103                            cfi_mask == VLAN_TAG_PRESENT) {
1104                         vlan_mask |= RQFPR_CFI;
1105                 }
1106         }
1107
1108         switch (rule->flow_type & ~FLOW_EXT) {
1109         case TCP_V4_FLOW:
1110                 gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_TCP | vlan,
1111                                     RQFPR_IPV4 | RQFPR_TCP | vlan_mask, tab);
1112                 gfar_set_basic_ip(&rule->h_u.tcp_ip4_spec,
1113                                   &rule->m_u.tcp_ip4_spec, tab);
1114                 break;
1115         case UDP_V4_FLOW:
1116                 gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_UDP | vlan,
1117                                     RQFPR_IPV4 | RQFPR_UDP | vlan_mask, tab);
1118                 gfar_set_basic_ip(&rule->h_u.udp_ip4_spec,
1119                                   &rule->m_u.udp_ip4_spec, tab);
1120                 break;
1121         case SCTP_V4_FLOW:
1122                 gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask,
1123                                     tab);
1124                 gfar_set_attribute(132, 0, RQFCR_PID_L4P, tab);
1125                 gfar_set_basic_ip((struct ethtool_tcpip4_spec *)&rule->h_u,
1126                                   (struct ethtool_tcpip4_spec *)&rule->m_u,
1127                                   tab);
1128                 break;
1129         case IP_USER_FLOW:
1130                 gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask,
1131                                     tab);
1132                 gfar_set_user_ip((struct ethtool_usrip4_spec *) &rule->h_u,
1133                                  (struct ethtool_usrip4_spec *) &rule->m_u,
1134                                  tab);
1135                 break;
1136         case ETHER_FLOW:
1137                 if (vlan)
1138                         gfar_set_parse_bits(vlan, vlan_mask, tab);
1139                 gfar_set_ether((struct ethhdr *) &rule->h_u,
1140                                (struct ethhdr *) &rule->m_u, tab);
1141                 break;
1142         default:
1143                 return -1;
1144         }
1145
1146         /* Set the vlan attributes in the end */
1147         if (vlan) {
1148                 gfar_set_attribute(id, id_mask, RQFCR_PID_VID, tab);
1149                 gfar_set_attribute(prio, prio_mask, RQFCR_PID_PRI, tab);
1150         }
1151
1152         /* If there has been nothing written till now, it must be a default */
1153         if (tab->index == old_index) {
1154                 gfar_set_mask(0xFFFFFFFF, tab);
1155                 tab->fe[tab->index].ctrl = 0x20;
1156                 tab->fe[tab->index].prop = 0x0;
1157                 tab->index++;
1158         }
1159
1160         /* Remove last AND */
1161         tab->fe[tab->index - 1].ctrl &= (~RQFCR_AND);
1162
1163         /* Specify which queue to use or to drop */
1164         if (rule->ring_cookie == RX_CLS_FLOW_DISC)
1165                 tab->fe[tab->index - 1].ctrl |= RQFCR_RJE;
1166         else
1167                 tab->fe[tab->index - 1].ctrl |= (rule->ring_cookie << 10);
1168
1169         /* Only big enough entries can be clustered */
1170         if (tab->index > (old_index + 2)) {
1171                 tab->fe[old_index + 1].ctrl |= RQFCR_CLE;
1172                 tab->fe[tab->index - 1].ctrl |= RQFCR_CLE;
1173         }
1174
1175         /* In rare cases the cache can be full while there is
1176          * free space in hw
1177          */
1178         if (tab->index > MAX_FILER_CACHE_IDX - 1)
1179                 return -EBUSY;
1180
1181         return 0;
1182 }
1183
1184 /* Copy size filer entries */
1185 static void gfar_copy_filer_entries(struct gfar_filer_entry dst[0],
1186                                     struct gfar_filer_entry src[0], s32 size)
1187 {
1188         while (size > 0) {
1189                 size--;
1190                 dst[size].ctrl = src[size].ctrl;
1191                 dst[size].prop = src[size].prop;
1192         }
1193 }
1194
1195 /* Delete the contents of the filer-table between start and end
1196  * and collapse them
1197  */
1198 static int gfar_trim_filer_entries(u32 begin, u32 end, struct filer_table *tab)
1199 {
1200         int length;
1201
1202         if (end > MAX_FILER_CACHE_IDX || end < begin)
1203                 return -EINVAL;
1204
1205         end++;
1206         length = end - begin;
1207
1208         /* Copy */
1209         while (end < tab->index) {
1210                 tab->fe[begin].ctrl = tab->fe[end].ctrl;
1211                 tab->fe[begin++].prop = tab->fe[end++].prop;
1212
1213         }
1214         /* Fill up with don't cares */
1215         while (begin < tab->index) {
1216                 tab->fe[begin].ctrl = 0x60;
1217                 tab->fe[begin].prop = 0xFFFFFFFF;
1218                 begin++;
1219         }
1220
1221         tab->index -= length;
1222         return 0;
1223 }
1224
1225 /* Make space on the wanted location */
1226 static int gfar_expand_filer_entries(u32 begin, u32 length,
1227                                      struct filer_table *tab)
1228 {
1229         if (length == 0 || length + tab->index > MAX_FILER_CACHE_IDX ||
1230             begin > MAX_FILER_CACHE_IDX)
1231                 return -EINVAL;
1232
1233         gfar_copy_filer_entries(&(tab->fe[begin + length]), &(tab->fe[begin]),
1234                                 tab->index - length + 1);
1235
1236         tab->index += length;
1237         return 0;
1238 }
1239
1240 static int gfar_get_next_cluster_start(int start, struct filer_table *tab)
1241 {
1242         for (; (start < tab->index) && (start < MAX_FILER_CACHE_IDX - 1);
1243              start++) {
1244                 if ((tab->fe[start].ctrl & (RQFCR_AND | RQFCR_CLE)) ==
1245                     (RQFCR_AND | RQFCR_CLE))
1246                         return start;
1247         }
1248         return -1;
1249 }
1250
1251 static int gfar_get_next_cluster_end(int start, struct filer_table *tab)
1252 {
1253         for (; (start < tab->index) && (start < MAX_FILER_CACHE_IDX - 1);
1254              start++) {
1255                 if ((tab->fe[start].ctrl & (RQFCR_AND | RQFCR_CLE)) ==
1256                     (RQFCR_CLE))
1257                         return start;
1258         }
1259         return -1;
1260 }
1261
1262 /* Uses hardwares clustering option to reduce
1263  * the number of filer table entries
1264  */
1265 static void gfar_cluster_filer(struct filer_table *tab)
1266 {
1267         s32 i = -1, j, iend, jend;
1268
1269         while ((i = gfar_get_next_cluster_start(++i, tab)) != -1) {
1270                 j = i;
1271                 while ((j = gfar_get_next_cluster_start(++j, tab)) != -1) {
1272                         /* The cluster entries self and the previous one
1273                          * (a mask) must be identical!
1274                          */
1275                         if (tab->fe[i].ctrl != tab->fe[j].ctrl)
1276                                 break;
1277                         if (tab->fe[i].prop != tab->fe[j].prop)
1278                                 break;
1279                         if (tab->fe[i - 1].ctrl != tab->fe[j - 1].ctrl)
1280                                 break;
1281                         if (tab->fe[i - 1].prop != tab->fe[j - 1].prop)
1282                                 break;
1283                         iend = gfar_get_next_cluster_end(i, tab);
1284                         jend = gfar_get_next_cluster_end(j, tab);
1285                         if (jend == -1 || iend == -1)
1286                                 break;
1287
1288                         /* First we make some free space, where our cluster
1289                          * element should be. Then we copy it there and finally
1290                          * delete in from its old location.
1291                          */
1292                         if (gfar_expand_filer_entries(iend, (jend - j), tab) ==
1293                             -EINVAL)
1294                                 break;
1295
1296                         gfar_copy_filer_entries(&(tab->fe[iend + 1]),
1297                                                 &(tab->fe[jend + 1]), jend - j);
1298
1299                         if (gfar_trim_filer_entries(jend - 1,
1300                                                     jend + (jend - j),
1301                                                     tab) == -EINVAL)
1302                                 return;
1303
1304                         /* Mask out cluster bit */
1305                         tab->fe[iend].ctrl &= ~(RQFCR_CLE);
1306                 }
1307         }
1308 }
1309
1310 /* Swaps the masked bits of a1<>a2 and b1<>b2 */
1311 static void gfar_swap_bits(struct gfar_filer_entry *a1,
1312                            struct gfar_filer_entry *a2,
1313                            struct gfar_filer_entry *b1,
1314                            struct gfar_filer_entry *b2, u32 mask)
1315 {
1316         u32 temp[4];
1317         temp[0] = a1->ctrl & mask;
1318         temp[1] = a2->ctrl & mask;
1319         temp[2] = b1->ctrl & mask;
1320         temp[3] = b2->ctrl & mask;
1321
1322         a1->ctrl &= ~mask;
1323         a2->ctrl &= ~mask;
1324         b1->ctrl &= ~mask;
1325         b2->ctrl &= ~mask;
1326
1327         a1->ctrl |= temp[1];
1328         a2->ctrl |= temp[0];
1329         b1->ctrl |= temp[3];
1330         b2->ctrl |= temp[2];
1331 }
1332
1333 /* Generate a list consisting of masks values with their start and
1334  * end of validity and block as indicator for parts belonging
1335  * together (glued by ANDs) in mask_table
1336  */
1337 static u32 gfar_generate_mask_table(struct gfar_mask_entry *mask_table,
1338                                     struct filer_table *tab)
1339 {
1340         u32 i, and_index = 0, block_index = 1;
1341
1342         for (i = 0; i < tab->index; i++) {
1343
1344                 /* LSByte of control = 0 sets a mask */
1345                 if (!(tab->fe[i].ctrl & 0xF)) {
1346                         mask_table[and_index].mask = tab->fe[i].prop;
1347                         mask_table[and_index].start = i;
1348                         mask_table[and_index].block = block_index;
1349                         if (and_index >= 1)
1350                                 mask_table[and_index - 1].end = i - 1;
1351                         and_index++;
1352                 }
1353                 /* cluster starts and ends will be separated because they should
1354                  * hold their position
1355                  */
1356                 if (tab->fe[i].ctrl & RQFCR_CLE)
1357                         block_index++;
1358                 /* A not set AND indicates the end of a depended block */
1359                 if (!(tab->fe[i].ctrl & RQFCR_AND))
1360                         block_index++;
1361         }
1362
1363         mask_table[and_index - 1].end = i - 1;
1364
1365         return and_index;
1366 }
1367
1368 /* Sorts the entries of mask_table by the values of the masks.
1369  * Important: The 0xFF80 flags of the first and last entry of a
1370  * block must hold their position (which queue, CLusterEnable, ReJEct,
1371  * AND)
1372  */
1373 static void gfar_sort_mask_table(struct gfar_mask_entry *mask_table,
1374                                  struct filer_table *temp_table, u32 and_index)
1375 {
1376         /* Pointer to compare function (_asc or _desc) */
1377         int (*gfar_comp)(const void *, const void *);
1378
1379         u32 i, size = 0, start = 0, prev = 1;
1380         u32 old_first, old_last, new_first, new_last;
1381
1382         gfar_comp = &gfar_comp_desc;
1383
1384         for (i = 0; i < and_index; i++) {
1385                 if (prev != mask_table[i].block) {
1386                         old_first = mask_table[start].start + 1;
1387                         old_last = mask_table[i - 1].end;
1388                         sort(mask_table + start, size,
1389                              sizeof(struct gfar_mask_entry),
1390                              gfar_comp, &gfar_swap);
1391
1392                         /* Toggle order for every block. This makes the
1393                          * thing more efficient!
1394                          */
1395                         if (gfar_comp == gfar_comp_desc)
1396                                 gfar_comp = &gfar_comp_asc;
1397                         else
1398                                 gfar_comp = &gfar_comp_desc;
1399
1400                         new_first = mask_table[start].start + 1;
1401                         new_last = mask_table[i - 1].end;
1402
1403                         gfar_swap_bits(&temp_table->fe[new_first],
1404                                        &temp_table->fe[old_first],
1405                                        &temp_table->fe[new_last],
1406                                        &temp_table->fe[old_last],
1407                                        RQFCR_QUEUE | RQFCR_CLE |
1408                                        RQFCR_RJE | RQFCR_AND);
1409
1410                         start = i;
1411                         size = 0;
1412                 }
1413                 size++;
1414                 prev = mask_table[i].block;
1415         }
1416 }
1417
1418 /* Reduces the number of masks needed in the filer table to save entries
1419  * This is done by sorting the masks of a depended block. A depended block is
1420  * identified by gluing ANDs or CLE. The sorting order toggles after every
1421  * block. Of course entries in scope of a mask must change their location with
1422  * it.
1423  */
1424 static int gfar_optimize_filer_masks(struct filer_table *tab)
1425 {
1426         struct filer_table *temp_table;
1427         struct gfar_mask_entry *mask_table;
1428
1429         u32 and_index = 0, previous_mask = 0, i = 0, j = 0, size = 0;
1430         s32 ret = 0;
1431
1432         /* We need a copy of the filer table because
1433          * we want to change its order
1434          */
1435         temp_table = kmemdup(tab, sizeof(*temp_table), GFP_KERNEL);
1436         if (temp_table == NULL)
1437                 return -ENOMEM;
1438
1439         mask_table = kcalloc(MAX_FILER_CACHE_IDX / 2 + 1,
1440                              sizeof(struct gfar_mask_entry), GFP_KERNEL);
1441
1442         if (mask_table == NULL) {
1443                 ret = -ENOMEM;
1444                 goto end;
1445         }
1446
1447         and_index = gfar_generate_mask_table(mask_table, tab);
1448
1449         gfar_sort_mask_table(mask_table, temp_table, and_index);
1450
1451         /* Now we can copy the data from our duplicated filer table to
1452          * the real one in the order the mask table says
1453          */
1454         for (i = 0; i < and_index; i++) {
1455                 size = mask_table[i].end - mask_table[i].start + 1;
1456                 gfar_copy_filer_entries(&(tab->fe[j]),
1457                                 &(temp_table->fe[mask_table[i].start]), size);
1458                 j += size;
1459         }
1460
1461         /* And finally we just have to check for duplicated masks and drop the
1462          * second ones
1463          */
1464         for (i = 0; i < tab->index && i < MAX_FILER_CACHE_IDX; i++) {
1465                 if (tab->fe[i].ctrl == 0x80) {
1466                         previous_mask = i++;
1467                         break;
1468                 }
1469         }
1470         for (; i < tab->index && i < MAX_FILER_CACHE_IDX; i++) {
1471                 if (tab->fe[i].ctrl == 0x80) {
1472                         if (tab->fe[i].prop == tab->fe[previous_mask].prop) {
1473                                 /* Two identical ones found!
1474                                  * So drop the second one!
1475                                  */
1476                                 gfar_trim_filer_entries(i, i, tab);
1477                         } else
1478                                 /* Not identical! */
1479                                 previous_mask = i;
1480                 }
1481         }
1482
1483         kfree(mask_table);
1484 end:    kfree(temp_table);
1485         return ret;
1486 }
1487
1488 /* Write the bit-pattern from software's buffer to hardware registers */
1489 static int gfar_write_filer_table(struct gfar_private *priv,
1490                                   struct filer_table *tab)
1491 {
1492         u32 i = 0;
1493         if (tab->index > MAX_FILER_IDX - 1)
1494                 return -EBUSY;
1495
1496         /* Avoid inconsistent filer table to be processed */
1497         lock_rx_qs(priv);
1498
1499         /* Fill regular entries */
1500         for (; i < MAX_FILER_IDX - 1 && (tab->fe[i].ctrl | tab->fe[i].ctrl);
1501              i++)
1502                 gfar_write_filer(priv, i, tab->fe[i].ctrl, tab->fe[i].prop);
1503         /* Fill the rest with fall-troughs */
1504         for (; i < MAX_FILER_IDX - 1; i++)
1505                 gfar_write_filer(priv, i, 0x60, 0xFFFFFFFF);
1506         /* Last entry must be default accept
1507          * because that's what people expect
1508          */
1509         gfar_write_filer(priv, i, 0x20, 0x0);
1510
1511         unlock_rx_qs(priv);
1512
1513         return 0;
1514 }
1515
1516 static int gfar_check_capability(struct ethtool_rx_flow_spec *flow,
1517                                  struct gfar_private *priv)
1518 {
1519
1520         if (flow->flow_type & FLOW_EXT) {
1521                 if (~flow->m_ext.data[0] || ~flow->m_ext.data[1])
1522                         netdev_warn(priv->ndev,
1523                                     "User-specific data not supported!\n");
1524                 if (~flow->m_ext.vlan_etype)
1525                         netdev_warn(priv->ndev,
1526                                     "VLAN-etype not supported!\n");
1527         }
1528         if (flow->flow_type == IP_USER_FLOW)
1529                 if (flow->h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4)
1530                         netdev_warn(priv->ndev,
1531                                     "IP-Version differing from IPv4 not supported!\n");
1532
1533         return 0;
1534 }
1535
1536 static int gfar_process_filer_changes(struct gfar_private *priv)
1537 {
1538         struct ethtool_flow_spec_container *j;
1539         struct filer_table *tab;
1540         s32 i = 0;
1541         s32 ret = 0;
1542
1543         /* So index is set to zero, too! */
1544         tab = kzalloc(sizeof(*tab), GFP_KERNEL);
1545         if (tab == NULL)
1546                 return -ENOMEM;
1547
1548         /* Now convert the existing filer data from flow_spec into
1549          * filer tables binary format
1550          */
1551         list_for_each_entry(j, &priv->rx_list.list, list) {
1552                 ret = gfar_convert_to_filer(&j->fs, tab);
1553                 if (ret == -EBUSY) {
1554                         netdev_err(priv->ndev,
1555                                    "Rule not added: No free space!\n");
1556                         goto end;
1557                 }
1558                 if (ret == -1) {
1559                         netdev_err(priv->ndev,
1560                                    "Rule not added: Unsupported Flow-type!\n");
1561                         goto end;
1562                 }
1563         }
1564
1565         i = tab->index;
1566
1567         /* Optimizations to save entries */
1568         gfar_cluster_filer(tab);
1569         gfar_optimize_filer_masks(tab);
1570
1571         pr_debug("\n\tSummary:\n"
1572                  "\tData on hardware: %d\n"
1573                  "\tCompression rate: %d%%\n",
1574                  tab->index, 100 - (100 * tab->index) / i);
1575
1576         /* Write everything to hardware */
1577         ret = gfar_write_filer_table(priv, tab);
1578         if (ret == -EBUSY) {
1579                 netdev_err(priv->ndev, "Rule not added: No free space!\n");
1580                 goto end;
1581         }
1582
1583 end:
1584         kfree(tab);
1585         return ret;
1586 }
1587
1588 static void gfar_invert_masks(struct ethtool_rx_flow_spec *flow)
1589 {
1590         u32 i = 0;
1591
1592         for (i = 0; i < sizeof(flow->m_u); i++)
1593                 flow->m_u.hdata[i] ^= 0xFF;
1594
1595         flow->m_ext.vlan_etype ^= 0xFFFF;
1596         flow->m_ext.vlan_tci ^= 0xFFFF;
1597         flow->m_ext.data[0] ^= ~0;
1598         flow->m_ext.data[1] ^= ~0;
1599 }
1600
1601 static int gfar_add_cls(struct gfar_private *priv,
1602                         struct ethtool_rx_flow_spec *flow)
1603 {
1604         struct ethtool_flow_spec_container *temp, *comp;
1605         int ret = 0;
1606
1607         temp = kmalloc(sizeof(*temp), GFP_KERNEL);
1608         if (temp == NULL)
1609                 return -ENOMEM;
1610         memcpy(&temp->fs, flow, sizeof(temp->fs));
1611
1612         gfar_invert_masks(&temp->fs);
1613         ret = gfar_check_capability(&temp->fs, priv);
1614         if (ret)
1615                 goto clean_mem;
1616         /* Link in the new element at the right @location */
1617         if (list_empty(&priv->rx_list.list)) {
1618                 ret = gfar_check_filer_hardware(priv);
1619                 if (ret != 0)
1620                         goto clean_mem;
1621                 list_add(&temp->list, &priv->rx_list.list);
1622                 goto process;
1623         } else {
1624                 list_for_each_entry(comp, &priv->rx_list.list, list) {
1625                         if (comp->fs.location > flow->location) {
1626                                 list_add_tail(&temp->list, &comp->list);
1627                                 goto process;
1628                         }
1629                         if (comp->fs.location == flow->location) {
1630                                 netdev_err(priv->ndev,
1631                                            "Rule not added: ID %d not free!\n",
1632                                            flow->location);
1633                                 ret = -EBUSY;
1634                                 goto clean_mem;
1635                         }
1636                 }
1637                 list_add_tail(&temp->list, &priv->rx_list.list);
1638         }
1639
1640 process:
1641         ret = gfar_process_filer_changes(priv);
1642         if (ret)
1643                 goto clean_list;
1644         priv->rx_list.count++;
1645         return ret;
1646
1647 clean_list:
1648         list_del(&temp->list);
1649 clean_mem:
1650         kfree(temp);
1651         return ret;
1652 }
1653
1654 static int gfar_del_cls(struct gfar_private *priv, u32 loc)
1655 {
1656         struct ethtool_flow_spec_container *comp;
1657         u32 ret = -EINVAL;
1658
1659         if (list_empty(&priv->rx_list.list))
1660                 return ret;
1661
1662         list_for_each_entry(comp, &priv->rx_list.list, list) {
1663                 if (comp->fs.location == loc) {
1664                         list_del(&comp->list);
1665                         kfree(comp);
1666                         priv->rx_list.count--;
1667                         gfar_process_filer_changes(priv);
1668                         ret = 0;
1669                         break;
1670                 }
1671         }
1672
1673         return ret;
1674 }
1675
1676 static int gfar_get_cls(struct gfar_private *priv, struct ethtool_rxnfc *cmd)
1677 {
1678         struct ethtool_flow_spec_container *comp;
1679         u32 ret = -EINVAL;
1680
1681         list_for_each_entry(comp, &priv->rx_list.list, list) {
1682                 if (comp->fs.location == cmd->fs.location) {
1683                         memcpy(&cmd->fs, &comp->fs, sizeof(cmd->fs));
1684                         gfar_invert_masks(&cmd->fs);
1685                         ret = 0;
1686                         break;
1687                 }
1688         }
1689
1690         return ret;
1691 }
1692
1693 static int gfar_get_cls_all(struct gfar_private *priv,
1694                             struct ethtool_rxnfc *cmd, u32 *rule_locs)
1695 {
1696         struct ethtool_flow_spec_container *comp;
1697         u32 i = 0;
1698
1699         list_for_each_entry(comp, &priv->rx_list.list, list) {
1700                 if (i == cmd->rule_cnt)
1701                         return -EMSGSIZE;
1702                 rule_locs[i] = comp->fs.location;
1703                 i++;
1704         }
1705
1706         cmd->data = MAX_FILER_IDX;
1707         cmd->rule_cnt = i;
1708
1709         return 0;
1710 }
1711
1712 static int gfar_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
1713 {
1714         struct gfar_private *priv = netdev_priv(dev);
1715         int ret = 0;
1716
1717         mutex_lock(&priv->rx_queue_access);
1718
1719         switch (cmd->cmd) {
1720         case ETHTOOL_SRXFH:
1721                 ret = gfar_set_hash_opts(priv, cmd);
1722                 break;
1723         case ETHTOOL_SRXCLSRLINS:
1724                 if ((cmd->fs.ring_cookie != RX_CLS_FLOW_DISC &&
1725                      cmd->fs.ring_cookie >= priv->num_rx_queues) ||
1726                     cmd->fs.location >= MAX_FILER_IDX) {
1727                         ret = -EINVAL;
1728                         break;
1729                 }
1730                 ret = gfar_add_cls(priv, &cmd->fs);
1731                 break;
1732         case ETHTOOL_SRXCLSRLDEL:
1733                 ret = gfar_del_cls(priv, cmd->fs.location);
1734                 break;
1735         default:
1736                 ret = -EINVAL;
1737         }
1738
1739         mutex_unlock(&priv->rx_queue_access);
1740
1741         return ret;
1742 }
1743
1744 static int gfar_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
1745                         u32 *rule_locs)
1746 {
1747         struct gfar_private *priv = netdev_priv(dev);
1748         int ret = 0;
1749
1750         switch (cmd->cmd) {
1751         case ETHTOOL_GRXRINGS:
1752                 cmd->data = priv->num_rx_queues;
1753                 break;
1754         case ETHTOOL_GRXCLSRLCNT:
1755                 cmd->rule_cnt = priv->rx_list.count;
1756                 break;
1757         case ETHTOOL_GRXCLSRULE:
1758                 ret = gfar_get_cls(priv, cmd);
1759                 break;
1760         case ETHTOOL_GRXCLSRLALL:
1761                 ret = gfar_get_cls_all(priv, cmd, rule_locs);
1762                 break;
1763         default:
1764                 ret = -EINVAL;
1765                 break;
1766         }
1767
1768         return ret;
1769 }
1770
1771 int gfar_phc_index = -1;
1772 EXPORT_SYMBOL(gfar_phc_index);
1773
1774 static int gfar_get_ts_info(struct net_device *dev,
1775                             struct ethtool_ts_info *info)
1776 {
1777         struct gfar_private *priv = netdev_priv(dev);
1778
1779         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER)) {
1780                 info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE |
1781                                         SOF_TIMESTAMPING_SOFTWARE;
1782                 info->phc_index = -1;
1783                 return 0;
1784         }
1785         info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
1786                                 SOF_TIMESTAMPING_RX_HARDWARE |
1787                                 SOF_TIMESTAMPING_RAW_HARDWARE;
1788         info->phc_index = gfar_phc_index;
1789         info->tx_types = (1 << HWTSTAMP_TX_OFF) |
1790                          (1 << HWTSTAMP_TX_ON);
1791         info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
1792                            (1 << HWTSTAMP_FILTER_ALL);
1793         return 0;
1794 }
1795
1796 const struct ethtool_ops gfar_ethtool_ops = {
1797         .get_settings = gfar_gsettings,
1798         .set_settings = gfar_ssettings,
1799         .get_drvinfo = gfar_gdrvinfo,
1800         .get_regs_len = gfar_reglen,
1801         .get_regs = gfar_get_regs,
1802         .get_link = ethtool_op_get_link,
1803         .get_coalesce = gfar_gcoalesce,
1804         .set_coalesce = gfar_scoalesce,
1805         .get_ringparam = gfar_gringparam,
1806         .set_ringparam = gfar_sringparam,
1807         .get_strings = gfar_gstrings,
1808         .get_sset_count = gfar_sset_count,
1809         .get_ethtool_stats = gfar_fill_stats,
1810         .get_msglevel = gfar_get_msglevel,
1811         .set_msglevel = gfar_set_msglevel,
1812 #ifdef CONFIG_PM
1813         .get_wol = gfar_get_wol,
1814         .set_wol = gfar_set_wol,
1815 #endif
1816         .set_rxnfc = gfar_set_nfc,
1817         .get_rxnfc = gfar_get_nfc,
1818         .get_ts_info = gfar_get_ts_info,
1819 };