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