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 = 0;
 364
 365         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
 366                 return -EOPNOTSUPP;
 367
 368         /* Set up rx coalescing */
 369         /* As of now, we will enable/disable coalescing for all
 370          * queues together in case of eTSEC2, this will be modified
 371          * along with the ethtool interface
 372          */
 373         if ((cvals->rx_coalesce_usecs == 0) ||
 374             (cvals->rx_max_coalesced_frames == 0)) {
 375                 for (i = 0; i < priv->num_rx_queues; i++)
 376                         priv->rx_queue[i]->rxcoalescing = 0;
 377         } else {
 378                 for (i = 0; i < priv->num_rx_queues; i++)
 379                         priv->rx_queue[i]->rxcoalescing = 1;
 380         }
 381
 382         if (NULL == priv->phydev)
 383                 return -ENODEV;
 384
 385         /* Check the bounds of the values */
 386         if (cvals->rx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
 387                 netdev_info(dev, "Coalescing is limited to %d microseconds\n",
 388                             GFAR_MAX_COAL_USECS);
 389                 return -EINVAL;
 390         }
 391
 392         if (cvals->rx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
 393                 netdev_info(dev, "Coalescing is limited to %d frames\n",
 394                             GFAR_MAX_COAL_FRAMES);
 395                 return -EINVAL;
 396         }
 397
 398         for (i = 0; i < priv->num_rx_queues; i++) {
 399                 priv->rx_queue[i]->rxic = mk_ic_value(
 400                         cvals->rx_max_coalesced_frames,
 401                         gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs));
 402         }
 403
 404         /* Set up tx coalescing */
 405         if ((cvals->tx_coalesce_usecs == 0) ||
 406             (cvals->tx_max_coalesced_frames == 0)) {
 407                 for (i = 0; i < priv->num_tx_queues; i++)
 408                         priv->tx_queue[i]->txcoalescing = 0;
 409         } else {
 410                 for (i = 0; i < priv->num_tx_queues; i++)
 411                         priv->tx_queue[i]->txcoalescing = 1;
 412         }
 413
 414         /* Check the bounds of the values */
 415         if (cvals->tx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
 416                 netdev_info(dev, "Coalescing is limited to %d microseconds\n",
 417                             GFAR_MAX_COAL_USECS);
 418                 return -EINVAL;
 419         }
 420
 421         if (cvals->tx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
 422                 netdev_info(dev, "Coalescing is limited to %d frames\n",
 423                             GFAR_MAX_COAL_FRAMES);
 424                 return -EINVAL;
 425         }
 426
 427         for (i = 0; i < priv->num_tx_queues; i++) {
 428                 priv->tx_queue[i]->txic = mk_ic_value(
 429                         cvals->tx_max_coalesced_frames,
 430                         gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs));
 431         }
 432
 433         gfar_configure_coalescing_all(priv);
 434
 435         return 0;
 436 }
 437
 438 /* Fills in rvals with the current ring parameters.  Currently,
 439  * rx, rx_mini, and rx_jumbo rings are the same size, as mini and
 440  * jumbo are ignored by the driver */
 441 static void gfar_gringparam(struct net_device *dev,
 442                             struct ethtool_ringparam *rvals)
 443 {
 444         struct gfar_private *priv = netdev_priv(dev);
 445         struct gfar_priv_tx_q *tx_queue = NULL;
 446         struct gfar_priv_rx_q *rx_queue = NULL;
 447
 448         tx_queue = priv->tx_queue[0];
 449         rx_queue = priv->rx_queue[0];
 450
 451         rvals->rx_max_pending = GFAR_RX_MAX_RING_SIZE;
 452         rvals->rx_mini_max_pending = GFAR_RX_MAX_RING_SIZE;
 453         rvals->rx_jumbo_max_pending = GFAR_RX_MAX_RING_SIZE;
 454         rvals->tx_max_pending = GFAR_TX_MAX_RING_SIZE;
 455
 456         /* Values changeable by the user.  The valid values are
 457          * in the range 1 to the "*_max_pending" counterpart above.
 458          */
 459         rvals->rx_pending = rx_queue->rx_ring_size;
 460         rvals->rx_mini_pending = rx_queue->rx_ring_size;
 461         rvals->rx_jumbo_pending = rx_queue->rx_ring_size;
 462         rvals->tx_pending = tx_queue->tx_ring_size;
 463 }
 464
 465 /* Change the current ring parameters, stopping the controller if
 466  * necessary so that we don't mess things up while we're in motion.
 467  */
 468 static int gfar_sringparam(struct net_device *dev,
 469                            struct ethtool_ringparam *rvals)
 470 {
 471         struct gfar_private *priv = netdev_priv(dev);
 472         int err = 0, i;
 473
 474         if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE)
 475                 return -EINVAL;
 476
 477         if (!is_power_of_2(rvals->rx_pending)) {
 478                 netdev_err(dev, "Ring sizes must be a power of 2\n");
 479                 return -EINVAL;
 480         }
 481
 482         if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE)
 483                 return -EINVAL;
 484
 485         if (!is_power_of_2(rvals->tx_pending)) {
 486                 netdev_err(dev, "Ring sizes must be a power of 2\n");
 487                 return -EINVAL;
 488         }
 489
 490         if (dev->flags & IFF_UP)
 491                 stop_gfar(dev);
 492
 493         /* Change the sizes */
 494         for (i = 0; i < priv->num_rx_queues; i++)
 495                 priv->rx_queue[i]->rx_ring_size = rvals->rx_pending;
 496
 497         for (i = 0; i < priv->num_tx_queues; i++)
 498                 priv->tx_queue[i]->tx_ring_size = rvals->tx_pending;
 499
 500         /* Rebuild the rings with the new size */
 501         if (dev->flags & IFF_UP) {
 502                 err = startup_gfar(dev);
 503                 netif_tx_wake_all_queues(dev);
 504         }
 505         return err;
 506 }
 507
 508 static void gfar_gpauseparam(struct net_device *dev,
 509                              struct ethtool_pauseparam *epause)
 510 {
 511         struct gfar_private *priv = netdev_priv(dev);
 512
 513         epause->autoneg = !!priv->pause_aneg_en;
 514         epause->rx_pause = !!priv->rx_pause_en;
 515         epause->tx_pause = !!priv->tx_pause_en;
 516 }
 517
 518 static int gfar_spauseparam(struct net_device *dev,
 519                             struct ethtool_pauseparam *epause)
 520 {
 521         struct gfar_private *priv = netdev_priv(dev);
 522         struct phy_device *phydev = priv->phydev;
 523         struct gfar __iomem *regs = priv->gfargrp[0].regs;
 524         u32 oldadv, newadv;
 525
 526         if (!(phydev->supported & SUPPORTED_Pause) ||
 527             (!(phydev->supported & SUPPORTED_Asym_Pause) &&
 528              (epause->rx_pause != epause->tx_pause)))
 529                 return -EINVAL;
 530
 531         priv->rx_pause_en = priv->tx_pause_en = 0;
 532         if (epause->rx_pause) {
 533                 priv->rx_pause_en = 1;
 534
 535                 if (epause->tx_pause) {
 536                         priv->tx_pause_en = 1;
 537                         /* FLOW_CTRL_RX & TX */
 538                         newadv = ADVERTISED_Pause;
 539                 } else  /* FLOW_CTLR_RX */
 540                         newadv = ADVERTISED_Pause | ADVERTISED_Asym_Pause;
 541         } else if (epause->tx_pause) {
 542                 priv->tx_pause_en = 1;
 543                 /* FLOW_CTLR_TX */
 544                 newadv = ADVERTISED_Asym_Pause;
 545         } else
 546                 newadv = 0;
 547
 548         if (epause->autoneg)
 549                 priv->pause_aneg_en = 1;
 550         else
 551                 priv->pause_aneg_en = 0;
 552
 553         oldadv = phydev->advertising &
 554                 (ADVERTISED_Pause | ADVERTISED_Asym_Pause);
 555         if (oldadv != newadv) {
 556                 phydev->advertising &=
 557                         ~(ADVERTISED_Pause | ADVERTISED_Asym_Pause);
 558                 phydev->advertising |= newadv;
 559                 if (phydev->autoneg)
 560                         /* inform link partner of our
 561                          * new flow ctrl settings
 562                          */
 563                         return phy_start_aneg(phydev);
 564
 565                 if (!epause->autoneg) {
 566                         u32 tempval;
 567                         tempval = gfar_read(&regs->maccfg1);
 568                         tempval &= ~(MACCFG1_TX_FLOW | MACCFG1_RX_FLOW);
 569                         if (priv->tx_pause_en)
 570                                 tempval |= MACCFG1_TX_FLOW;
 571                         if (priv->rx_pause_en)
 572                                 tempval |= MACCFG1_RX_FLOW;
 573                         gfar_write(&regs->maccfg1, tempval);
 574                 }
 575         }
 576
 577         return 0;
 578 }
 579
 580 int gfar_set_features(struct net_device *dev, netdev_features_t features)
 581 {
 582         netdev_features_t changed = dev->features ^ features;
 583         int err = 0;
 584
 585         if (changed & (NETIF_F_HW_VLAN_CTAG_TX|NETIF_F_HW_VLAN_CTAG_RX))
 586                 gfar_vlan_mode(dev, features);
 587
 588         if (!(changed & NETIF_F_RXCSUM))
 589                 return 0;
 590
 591         if (dev->flags & IFF_UP) {
 592                 /* Now we take down the rings to rebuild them */
 593                 stop_gfar(dev);
 594
 595                 dev->features = features;
 596
 597                 err = startup_gfar(dev);
 598                 netif_tx_wake_all_queues(dev);
 599         }
 600         return err;
 601 }
 602
 603 static uint32_t gfar_get_msglevel(struct net_device *dev)
 604 {
 605         struct gfar_private *priv = netdev_priv(dev);
 606
 607         return priv->msg_enable;
 608 }
 609
 610 static void gfar_set_msglevel(struct net_device *dev, uint32_t data)
 611 {
 612         struct gfar_private *priv = netdev_priv(dev);
 613
 614         priv->msg_enable = data;
 615 }
 616
 617 #ifdef CONFIG_PM
 618 static void gfar_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 619 {
 620         struct gfar_private *priv = netdev_priv(dev);
 621
 622         if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) {
 623                 wol->supported = WAKE_MAGIC;
 624                 wol->wolopts = priv->wol_en ? WAKE_MAGIC : 0;
 625         } else {
 626                 wol->supported = wol->wolopts = 0;
 627         }
 628 }
 629
 630 static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 631 {
 632         struct gfar_private *priv = netdev_priv(dev);
 633         unsigned long flags;
 634
 635         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) &&
 636             wol->wolopts != 0)
 637                 return -EINVAL;
 638
 639         if (wol->wolopts & ~WAKE_MAGIC)
 640                 return -EINVAL;
 641
 642         device_set_wakeup_enable(&dev->dev, wol->wolopts & WAKE_MAGIC);
 643
 644         spin_lock_irqsave(&priv->bflock, flags);
 645         priv->wol_en =  !!device_may_wakeup(&dev->dev);
 646         spin_unlock_irqrestore(&priv->bflock, flags);
 647
 648         return 0;
 649 }
 650 #endif
 651
 652 static void ethflow_to_filer_rules (struct gfar_private *priv, u64 ethflow)
 653 {
 654         u32 fcr = 0x0, fpr = FPR_FILER_MASK;
 655
 656         if (ethflow & RXH_L2DA) {
 657                 fcr = RQFCR_PID_DAH |RQFCR_CMP_NOMATCH |
 658                       RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0;
 659                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 660                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 661                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 662                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 663
 664                 fcr = RQFCR_PID_DAL | RQFCR_AND | RQFCR_CMP_NOMATCH |
 665                       RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0;
 666                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 667                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 668                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 669                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 670         }
 671
 672         if (ethflow & RXH_VLAN) {
 673                 fcr = RQFCR_PID_VID | RQFCR_CMP_NOMATCH | RQFCR_HASH |
 674                       RQFCR_AND | RQFCR_HASHTBL_0;
 675                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 676                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 677                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 678                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 679         }
 680
 681         if (ethflow & RXH_IP_SRC) {
 682                 fcr = RQFCR_PID_SIA | RQFCR_CMP_NOMATCH | RQFCR_HASH |
 683                       RQFCR_AND | RQFCR_HASHTBL_0;
 684                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 685                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 686                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 687                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 688         }
 689
 690         if (ethflow & (RXH_IP_DST)) {
 691                 fcr = RQFCR_PID_DIA | RQFCR_CMP_NOMATCH | RQFCR_HASH |
 692                       RQFCR_AND | RQFCR_HASHTBL_0;
 693                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 694                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 695                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 696                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 697         }
 698
 699         if (ethflow & RXH_L3_PROTO) {
 700                 fcr = RQFCR_PID_L4P | RQFCR_CMP_NOMATCH | RQFCR_HASH |
 701                       RQFCR_AND | RQFCR_HASHTBL_0;
 702                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 703                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 704                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 705                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 706         }
 707
 708         if (ethflow & RXH_L4_B_0_1) {
 709                 fcr = RQFCR_PID_SPT | RQFCR_CMP_NOMATCH | RQFCR_HASH |
 710                       RQFCR_AND | RQFCR_HASHTBL_0;
 711                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 712                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 713                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 714                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 715         }
 716
 717         if (ethflow & RXH_L4_B_2_3) {
 718                 fcr = RQFCR_PID_DPT | RQFCR_CMP_NOMATCH | RQFCR_HASH |
 719                       RQFCR_AND | RQFCR_HASHTBL_0;
 720                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 721                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 722                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 723                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 724         }
 725 }
 726
 727 static int gfar_ethflow_to_filer_table(struct gfar_private *priv, u64 ethflow,
 728                                        u64 class)
 729 {
 730         unsigned int last_rule_idx = priv->cur_filer_idx;
 731         unsigned int cmp_rqfpr;
 732         unsigned int *local_rqfpr;
 733         unsigned int *local_rqfcr;
 734         int i = 0x0, k = 0x0;
 735         int j = MAX_FILER_IDX, l = 0x0;
 736         int ret = 1;
 737
 738         local_rqfpr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int),
 739                                     GFP_KERNEL);
 740         local_rqfcr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int),
 741                                     GFP_KERNEL);
 742         if (!local_rqfpr || !local_rqfcr) {
 743                 ret = 0;
 744                 goto err;
 745         }
 746
 747         switch (class) {
 748         case TCP_V4_FLOW:
 749                 cmp_rqfpr = RQFPR_IPV4 |RQFPR_TCP;
 750                 break;
 751         case UDP_V4_FLOW:
 752                 cmp_rqfpr = RQFPR_IPV4 |RQFPR_UDP;
 753                 break;
 754         case TCP_V6_FLOW:
 755                 cmp_rqfpr = RQFPR_IPV6 |RQFPR_TCP;
 756                 break;
 757         case UDP_V6_FLOW:
 758                 cmp_rqfpr = RQFPR_IPV6 |RQFPR_UDP;
 759                 break;
 760         default:
 761                 netdev_err(priv->ndev,
 762                            "Right now this class is not supported\n");
 763                 ret = 0;
 764                 goto err;
 765         }
 766
 767         for (i = 0; i < MAX_FILER_IDX + 1; i++) {
 768                 local_rqfpr[j] = priv->ftp_rqfpr[i];
 769                 local_rqfcr[j] = priv->ftp_rqfcr[i];
 770                 j--;
 771                 if ((priv->ftp_rqfcr[i] ==
 772                      (RQFCR_PID_PARSE | RQFCR_CLE | RQFCR_AND)) &&
 773                     (priv->ftp_rqfpr[i] == cmp_rqfpr))
 774                         break;
 775         }
 776
 777         if (i == MAX_FILER_IDX + 1) {
 778                 netdev_err(priv->ndev,
 779                            "No parse rule found, can't create hash rules\n");
 780                 ret = 0;
 781                 goto err;
 782         }
 783
 784         /* If a match was found, then it begins the starting of a cluster rule
 785          * if it was already programmed, we need to overwrite these rules
 786          */
 787         for (l = i+1; l < MAX_FILER_IDX; l++) {
 788                 if ((priv->ftp_rqfcr[l] & RQFCR_CLE) &&
 789                     !(priv->ftp_rqfcr[l] & RQFCR_AND)) {
 790                         priv->ftp_rqfcr[l] = RQFCR_CLE | RQFCR_CMP_EXACT |
 791                                              RQFCR_HASHTBL_0 | RQFCR_PID_MASK;
 792                         priv->ftp_rqfpr[l] = FPR_FILER_MASK;
 793                         gfar_write_filer(priv, l, priv->ftp_rqfcr[l],
 794                                          priv->ftp_rqfpr[l]);
 795                         break;
 796                 }
 797
 798                 if (!(priv->ftp_rqfcr[l] & RQFCR_CLE) &&
 799                         (priv->ftp_rqfcr[l] & RQFCR_AND))
 800                         continue;
 801                 else {
 802                         local_rqfpr[j] = priv->ftp_rqfpr[l];
 803                         local_rqfcr[j] = priv->ftp_rqfcr[l];
 804                         j--;
 805                 }
 806         }
 807
 808         priv->cur_filer_idx = l - 1;
 809         last_rule_idx = l;
 810
 811         /* hash rules */
 812         ethflow_to_filer_rules(priv, ethflow);
 813
 814         /* Write back the popped out rules again */
 815         for (k = j+1; k < MAX_FILER_IDX; k++) {
 816                 priv->ftp_rqfpr[priv->cur_filer_idx] = local_rqfpr[k];
 817                 priv->ftp_rqfcr[priv->cur_filer_idx] = local_rqfcr[k];
 818                 gfar_write_filer(priv, priv->cur_filer_idx,
 819                                  local_rqfcr[k], local_rqfpr[k]);
 820                 if (!priv->cur_filer_idx)
 821                         break;
 822                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 823         }
 824
 825 err:
 826         kfree(local_rqfcr);
 827         kfree(local_rqfpr);
 828         return ret;
 829 }
 830
 831 static int gfar_set_hash_opts(struct gfar_private *priv,
 832                               struct ethtool_rxnfc *cmd)
 833 {
 834         /* write the filer rules here */
 835         if (!gfar_ethflow_to_filer_table(priv, cmd->data, cmd->flow_type))
 836                 return -EINVAL;
 837
 838         return 0;
 839 }
 840
 841 static int gfar_check_filer_hardware(struct gfar_private *priv)
 842 {
 843         struct gfar __iomem *regs = priv->gfargrp[0].regs;
 844         u32 i;
 845
 846         /* Check if we are in FIFO mode */
 847         i = gfar_read(&regs->ecntrl);
 848         i &= ECNTRL_FIFM;
 849         if (i == ECNTRL_FIFM) {
 850                 netdev_notice(priv->ndev, "Interface in FIFO mode\n");
 851                 i = gfar_read(&regs->rctrl);
 852                 i &= RCTRL_PRSDEP_MASK | RCTRL_PRSFM;
 853                 if (i == (RCTRL_PRSDEP_MASK | RCTRL_PRSFM)) {
 854                         netdev_info(priv->ndev,
 855                                     "Receive Queue Filtering enabled\n");
 856                 } else {
 857                         netdev_warn(priv->ndev,
 858                                     "Receive Queue Filtering disabled\n");
 859                         return -EOPNOTSUPP;
 860                 }
 861         }
 862         /* Or in standard mode */
 863         else {
 864                 i = gfar_read(&regs->rctrl);
 865                 i &= RCTRL_PRSDEP_MASK;
 866                 if (i == RCTRL_PRSDEP_MASK) {
 867                         netdev_info(priv->ndev,
 868                                     "Receive Queue Filtering enabled\n");
 869                 } else {
 870                         netdev_warn(priv->ndev,
 871                                     "Receive Queue Filtering disabled\n");
 872                         return -EOPNOTSUPP;
 873                 }
 874         }
 875
 876         /* Sets the properties for arbitrary filer rule
 877          * to the first 4 Layer 4 Bytes
 878          */
 879         gfar_write(&regs->rbifx, 0xC0C1C2C3);
 880         return 0;
 881 }
 882
 883 static int gfar_comp_asc(const void *a, const void *b)
 884 {
 885         return memcmp(a, b, 4);
 886 }
 887
 888 static int gfar_comp_desc(const void *a, const void *b)
 889 {
 890         return -memcmp(a, b, 4);
 891 }
 892
 893 static void gfar_swap(void *a, void *b, int size)
 894 {
 895         u32 *_a = a;
 896         u32 *_b = b;
 897
 898         swap(_a[0], _b[0]);
 899         swap(_a[1], _b[1]);
 900         swap(_a[2], _b[2]);
 901         swap(_a[3], _b[3]);
 902 }
 903
 904 /* Write a mask to filer cache */
 905 static void gfar_set_mask(u32 mask, struct filer_table *tab)
 906 {
 907         tab->fe[tab->index].ctrl = RQFCR_AND | RQFCR_PID_MASK | RQFCR_CMP_EXACT;
 908         tab->fe[tab->index].prop = mask;
 909         tab->index++;
 910 }
 911
 912 /* Sets parse bits (e.g. IP or TCP) */
 913 static void gfar_set_parse_bits(u32 value, u32 mask, struct filer_table *tab)
 914 {
 915         gfar_set_mask(mask, tab);
 916         tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_PID_PARSE |
 917                                    RQFCR_AND;
 918         tab->fe[tab->index].prop = value;
 919         tab->index++;
 920 }
 921
 922 static void gfar_set_general_attribute(u32 value, u32 mask, u32 flag,
 923                                        struct filer_table *tab)
 924 {
 925         gfar_set_mask(mask, tab);
 926         tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_AND | flag;
 927         tab->fe[tab->index].prop = value;
 928         tab->index++;
 929 }
 930
 931 /* For setting a tuple of value and mask of type flag
 932  * Example:
 933  * IP-Src = 10.0.0.0/255.0.0.0
 934  * value: 0x0A000000 mask: FF000000 flag: RQFPR_IPV4
 935  *
 936  * Ethtool gives us a value=0 and mask=~0 for don't care a tuple
 937  * For a don't care mask it gives us a 0
 938  *
 939  * The check if don't care and the mask adjustment if mask=0 is done for VLAN
 940  * and MAC stuff on an upper level (due to missing information on this level).
 941  * For these guys we can discard them if they are value=0 and mask=0.
 942  *
 943  * Further the all masks are one-padded for better hardware efficiency.
 944  */
 945 static void gfar_set_attribute(u32 value, u32 mask, u32 flag,
 946                                struct filer_table *tab)
 947 {
 948         switch (flag) {
 949                 /* 3bit */
 950         case RQFCR_PID_PRI:
 951                 if (!(value | mask))
 952                         return;
 953                 mask |= RQFCR_PID_PRI_MASK;
 954                 break;
 955                 /* 8bit */
 956         case RQFCR_PID_L4P:
 957         case RQFCR_PID_TOS:
 958                 if (!~(mask | RQFCR_PID_L4P_MASK))
 959                         return;
 960                 if (!mask)
 961                         mask = ~0;
 962                 else
 963                         mask |= RQFCR_PID_L4P_MASK;
 964                 break;
 965                 /* 12bit */
 966         case RQFCR_PID_VID:
 967                 if (!(value | mask))
 968                         return;
 969                 mask |= RQFCR_PID_VID_MASK;
 970                 break;
 971                 /* 16bit */
 972         case RQFCR_PID_DPT:
 973         case RQFCR_PID_SPT:
 974         case RQFCR_PID_ETY:
 975                 if (!~(mask | RQFCR_PID_PORT_MASK))
 976                         return;
 977                 if (!mask)
 978                         mask = ~0;
 979                 else
 980                         mask |= RQFCR_PID_PORT_MASK;
 981                 break;
 982                 /* 24bit */
 983         case RQFCR_PID_DAH:
 984         case RQFCR_PID_DAL:
 985         case RQFCR_PID_SAH:
 986         case RQFCR_PID_SAL:
 987                 if (!(value | mask))
 988                         return;
 989                 mask |= RQFCR_PID_MAC_MASK;
 990                 break;
 991                 /* for all real 32bit masks */
 992         default:
 993                 if (!~mask)
 994                         return;
 995                 if (!mask)
 996                         mask = ~0;
 997                 break;
 998         }
 999         gfar_set_general_attribute(value, mask, flag, tab);
1000 }
1001
1002 /* Translates value and mask for UDP, TCP or SCTP */
1003 static void gfar_set_basic_ip(struct ethtool_tcpip4_spec *value,
1004                               struct ethtool_tcpip4_spec *mask,
1005                               struct filer_table *tab)
1006 {
1007         gfar_set_attribute(be32_to_cpu(value->ip4src),
1008                            be32_to_cpu(mask->ip4src),
1009                            RQFCR_PID_SIA, tab);
1010         gfar_set_attribute(be32_to_cpu(value->ip4dst),
1011                            be32_to_cpu(mask->ip4dst),
1012                            RQFCR_PID_DIA, tab);
1013         gfar_set_attribute(be16_to_cpu(value->pdst),
1014                            be16_to_cpu(mask->pdst),
1015                            RQFCR_PID_DPT, tab);
1016         gfar_set_attribute(be16_to_cpu(value->psrc),
1017                            be16_to_cpu(mask->psrc),
1018                            RQFCR_PID_SPT, tab);
1019         gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab);
1020 }
1021
1022 /* Translates value and mask for RAW-IP4 */
1023 static void gfar_set_user_ip(struct ethtool_usrip4_spec *value,
1024                              struct ethtool_usrip4_spec *mask,
1025                              struct filer_table *tab)
1026 {
1027         gfar_set_attribute(be32_to_cpu(value->ip4src),
1028                            be32_to_cpu(mask->ip4src),
1029                            RQFCR_PID_SIA, tab);
1030         gfar_set_attribute(be32_to_cpu(value->ip4dst),
1031                            be32_to_cpu(mask->ip4dst),
1032                            RQFCR_PID_DIA, tab);
1033         gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab);
1034         gfar_set_attribute(value->proto, mask->proto, RQFCR_PID_L4P, tab);
1035         gfar_set_attribute(be32_to_cpu(value->l4_4_bytes),
1036                            be32_to_cpu(mask->l4_4_bytes),
1037                            RQFCR_PID_ARB, tab);
1038
1039 }
1040
1041 /* Translates value and mask for ETHER spec */
1042 static void gfar_set_ether(struct ethhdr *value, struct ethhdr *mask,
1043                            struct filer_table *tab)
1044 {
1045         u32 upper_temp_mask = 0;
1046         u32 lower_temp_mask = 0;
1047
1048         /* Source address */
1049         if (!is_broadcast_ether_addr(mask->h_source)) {
1050                 if (is_zero_ether_addr(mask->h_source)) {
1051                         upper_temp_mask = 0xFFFFFFFF;
1052                         lower_temp_mask = 0xFFFFFFFF;
1053                 } else {
1054                         upper_temp_mask = mask->h_source[0] << 16 |
1055                                           mask->h_source[1] << 8  |
1056                                           mask->h_source[2];
1057                         lower_temp_mask = mask->h_source[3] << 16 |
1058                                           mask->h_source[4] << 8  |
1059                                           mask->h_source[5];
1060                 }
1061                 /* Upper 24bit */
1062                 gfar_set_attribute(value->h_source[0] << 16 |
1063                                    value->h_source[1] << 8  |
1064                                    value->h_source[2],
1065                                    upper_temp_mask, RQFCR_PID_SAH, tab);
1066                 /* And the same for the lower part */
1067                 gfar_set_attribute(value->h_source[3] << 16 |
1068                                    value->h_source[4] << 8  |
1069                                    value->h_source[5],
1070                                    lower_temp_mask, RQFCR_PID_SAL, tab);
1071         }
1072         /* Destination address */
1073         if (!is_broadcast_ether_addr(mask->h_dest)) {
1074                 /* Special for destination is limited broadcast */
1075                 if ((is_broadcast_ether_addr(value->h_dest) &&
1076                     is_zero_ether_addr(mask->h_dest))) {
1077                         gfar_set_parse_bits(RQFPR_EBC, RQFPR_EBC, tab);
1078                 } else {
1079                         if (is_zero_ether_addr(mask->h_dest)) {
1080                                 upper_temp_mask = 0xFFFFFFFF;
1081                                 lower_temp_mask = 0xFFFFFFFF;
1082                         } else {
1083                                 upper_temp_mask = mask->h_dest[0] << 16 |
1084                                                   mask->h_dest[1] << 8  |
1085                                                   mask->h_dest[2];
1086                                 lower_temp_mask = mask->h_dest[3] << 16 |
1087                                                   mask->h_dest[4] << 8  |
1088                                                   mask->h_dest[5];
1089                         }
1090
1091                         /* Upper 24bit */
1092                         gfar_set_attribute(value->h_dest[0] << 16 |
1093                                            value->h_dest[1] << 8  |
1094                                            value->h_dest[2],
1095                                            upper_temp_mask, RQFCR_PID_DAH, tab);
1096                         /* And the same for the lower part */
1097                         gfar_set_attribute(value->h_dest[3] << 16 |
1098                                            value->h_dest[4] << 8  |
1099                                            value->h_dest[5],
1100                                            lower_temp_mask, RQFCR_PID_DAL, tab);
1101                 }
1102         }
1103
1104         gfar_set_attribute(be16_to_cpu(value->h_proto),
1105                            be16_to_cpu(mask->h_proto),
1106                            RQFCR_PID_ETY, tab);
1107 }
1108
1109 static inline u32 vlan_tci_vid(struct ethtool_rx_flow_spec *rule)
1110 {
1111         return be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_VID_MASK;
1112 }
1113
1114 static inline u32 vlan_tci_vidm(struct ethtool_rx_flow_spec *rule)
1115 {
1116         return be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_VID_MASK;
1117 }
1118
1119 static inline u32 vlan_tci_cfi(struct ethtool_rx_flow_spec *rule)
1120 {
1121         return be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_CFI_MASK;
1122 }
1123
1124 static inline u32 vlan_tci_cfim(struct ethtool_rx_flow_spec *rule)
1125 {
1126         return be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_CFI_MASK;
1127 }
1128
1129 static inline u32 vlan_tci_prio(struct ethtool_rx_flow_spec *rule)
1130 {
1131         return (be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_PRIO_MASK) >>
1132                 VLAN_PRIO_SHIFT;
1133 }
1134
1135 static inline u32 vlan_tci_priom(struct ethtool_rx_flow_spec *rule)
1136 {
1137         return (be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_PRIO_MASK) >>
1138                 VLAN_PRIO_SHIFT;
1139 }
1140
1141 /* Convert a rule to binary filter format of gianfar */
1142 static int gfar_convert_to_filer(struct ethtool_rx_flow_spec *rule,
1143                                  struct filer_table *tab)
1144 {
1145         u32 vlan = 0, vlan_mask = 0;
1146         u32 id = 0, id_mask = 0;
1147         u32 cfi = 0, cfi_mask = 0;
1148         u32 prio = 0, prio_mask = 0;
1149         u32 old_index = tab->index;
1150
1151         /* Check if vlan is wanted */
1152         if ((rule->flow_type & FLOW_EXT) &&
1153             (rule->m_ext.vlan_tci != cpu_to_be16(0xFFFF))) {
1154                 if (!rule->m_ext.vlan_tci)
1155                         rule->m_ext.vlan_tci = cpu_to_be16(0xFFFF);
1156
1157                 vlan = RQFPR_VLN;
1158                 vlan_mask = RQFPR_VLN;
1159
1160                 /* Separate the fields */
1161                 id = vlan_tci_vid(rule);
1162                 id_mask = vlan_tci_vidm(rule);
1163                 cfi = vlan_tci_cfi(rule);
1164                 cfi_mask = vlan_tci_cfim(rule);
1165                 prio = vlan_tci_prio(rule);
1166                 prio_mask = vlan_tci_priom(rule);
1167
1168                 if (cfi == VLAN_TAG_PRESENT && cfi_mask == VLAN_TAG_PRESENT) {
1169                         vlan |= RQFPR_CFI;
1170                         vlan_mask |= RQFPR_CFI;
1171                 } else if (cfi != VLAN_TAG_PRESENT &&
1172                            cfi_mask == VLAN_TAG_PRESENT) {
1173                         vlan_mask |= RQFPR_CFI;
1174                 }
1175         }
1176
1177         switch (rule->flow_type & ~FLOW_EXT) {
1178         case TCP_V4_FLOW:
1179                 gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_TCP | vlan,
1180                                     RQFPR_IPV4 | RQFPR_TCP | vlan_mask, tab);
1181                 gfar_set_basic_ip(&rule->h_u.tcp_ip4_spec,
1182                                   &rule->m_u.tcp_ip4_spec, tab);
1183                 break;
1184         case UDP_V4_FLOW:
1185                 gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_UDP | vlan,
1186                                     RQFPR_IPV4 | RQFPR_UDP | vlan_mask, tab);
1187                 gfar_set_basic_ip(&rule->h_u.udp_ip4_spec,
1188                                   &rule->m_u.udp_ip4_spec, tab);
1189                 break;
1190         case SCTP_V4_FLOW:
1191                 gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask,
1192                                     tab);
1193                 gfar_set_attribute(132, 0, RQFCR_PID_L4P, tab);
1194                 gfar_set_basic_ip((struct ethtool_tcpip4_spec *)&rule->h_u,
1195                                   (struct ethtool_tcpip4_spec *)&rule->m_u,
1196                                   tab);
1197                 break;
1198         case IP_USER_FLOW:
1199                 gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask,
1200                                     tab);
1201                 gfar_set_user_ip((struct ethtool_usrip4_spec *) &rule->h_u,
1202                                  (struct ethtool_usrip4_spec *) &rule->m_u,
1203                                  tab);
1204                 break;
1205         case ETHER_FLOW:
1206                 if (vlan)
1207                         gfar_set_parse_bits(vlan, vlan_mask, tab);
1208                 gfar_set_ether((struct ethhdr *) &rule->h_u,
1209                                (struct ethhdr *) &rule->m_u, tab);
1210                 break;
1211         default:
1212                 return -1;
1213         }
1214
1215         /* Set the vlan attributes in the end */
1216         if (vlan) {
1217                 gfar_set_attribute(id, id_mask, RQFCR_PID_VID, tab);
1218                 gfar_set_attribute(prio, prio_mask, RQFCR_PID_PRI, tab);
1219         }
1220
1221         /* If there has been nothing written till now, it must be a default */
1222         if (tab->index == old_index) {
1223                 gfar_set_mask(0xFFFFFFFF, tab);
1224                 tab->fe[tab->index].ctrl = 0x20;
1225                 tab->fe[tab->index].prop = 0x0;
1226                 tab->index++;
1227         }
1228
1229         /* Remove last AND */
1230         tab->fe[tab->index - 1].ctrl &= (~RQFCR_AND);
1231
1232         /* Specify which queue to use or to drop */
1233         if (rule->ring_cookie == RX_CLS_FLOW_DISC)
1234                 tab->fe[tab->index - 1].ctrl |= RQFCR_RJE;
1235         else
1236                 tab->fe[tab->index - 1].ctrl |= (rule->ring_cookie << 10);
1237
1238         /* Only big enough entries can be clustered */
1239         if (tab->index > (old_index + 2)) {
1240                 tab->fe[old_index + 1].ctrl |= RQFCR_CLE;
1241                 tab->fe[tab->index - 1].ctrl |= RQFCR_CLE;
1242         }
1243
1244         /* In rare cases the cache can be full while there is
1245          * free space in hw
1246          */
1247         if (tab->index > MAX_FILER_CACHE_IDX - 1)
1248                 return -EBUSY;
1249
1250         return 0;
1251 }
1252
1253 /* Copy size filer entries */
1254 static void gfar_copy_filer_entries(struct gfar_filer_entry dst[0],
1255                                     struct gfar_filer_entry src[0], s32 size)
1256 {
1257         while (size > 0) {
1258                 size--;
1259                 dst[size].ctrl = src[size].ctrl;
1260                 dst[size].prop = src[size].prop;
1261         }
1262 }
1263
1264 /* Delete the contents of the filer-table between start and end
1265  * and collapse them
1266  */
1267 static int gfar_trim_filer_entries(u32 begin, u32 end, struct filer_table *tab)
1268 {
1269         int length;
1270
1271         if (end > MAX_FILER_CACHE_IDX || end < begin)
1272                 return -EINVAL;
1273
1274         end++;
1275         length = end - begin;
1276
1277         /* Copy */
1278         while (end < tab->index) {
1279                 tab->fe[begin].ctrl = tab->fe[end].ctrl;
1280                 tab->fe[begin++].prop = tab->fe[end++].prop;
1281
1282         }
1283         /* Fill up with don't cares */
1284         while (begin < tab->index) {
1285                 tab->fe[begin].ctrl = 0x60;
1286                 tab->fe[begin].prop = 0xFFFFFFFF;
1287                 begin++;
1288         }
1289
1290         tab->index -= length;
1291         return 0;
1292 }
1293
1294 /* Make space on the wanted location */
1295 static int gfar_expand_filer_entries(u32 begin, u32 length,
1296                                      struct filer_table *tab)
1297 {
1298         if (length == 0 || length + tab->index > MAX_FILER_CACHE_IDX ||
1299             begin > MAX_FILER_CACHE_IDX)
1300                 return -EINVAL;
1301
1302         gfar_copy_filer_entries(&(tab->fe[begin + length]), &(tab->fe[begin]),
1303                                 tab->index - length + 1);
1304
1305         tab->index += length;
1306         return 0;
1307 }
1308
1309 static int gfar_get_next_cluster_start(int start, struct filer_table *tab)
1310 {
1311         for (; (start < tab->index) && (start < MAX_FILER_CACHE_IDX - 1);
1312              start++) {
1313                 if ((tab->fe[start].ctrl & (RQFCR_AND | RQFCR_CLE)) ==
1314                     (RQFCR_AND | RQFCR_CLE))
1315                         return start;
1316         }
1317         return -1;
1318 }
1319
1320 static int gfar_get_next_cluster_end(int start, struct filer_table *tab)
1321 {
1322         for (; (start < tab->index) && (start < MAX_FILER_CACHE_IDX - 1);
1323              start++) {
1324                 if ((tab->fe[start].ctrl & (RQFCR_AND | RQFCR_CLE)) ==
1325                     (RQFCR_CLE))
1326                         return start;
1327         }
1328         return -1;
1329 }
1330
1331 /* Uses hardwares clustering option to reduce
1332  * the number of filer table entries
1333  */
1334 static void gfar_cluster_filer(struct filer_table *tab)
1335 {
1336         s32 i = -1, j, iend, jend;
1337
1338         while ((i = gfar_get_next_cluster_start(++i, tab)) != -1) {
1339                 j = i;
1340                 while ((j = gfar_get_next_cluster_start(++j, tab)) != -1) {
1341                         /* The cluster entries self and the previous one
1342                          * (a mask) must be identical!
1343                          */
1344                         if (tab->fe[i].ctrl != tab->fe[j].ctrl)
1345                                 break;
1346                         if (tab->fe[i].prop != tab->fe[j].prop)
1347                                 break;
1348                         if (tab->fe[i - 1].ctrl != tab->fe[j - 1].ctrl)
1349                                 break;
1350                         if (tab->fe[i - 1].prop != tab->fe[j - 1].prop)
1351                                 break;
1352                         iend = gfar_get_next_cluster_end(i, tab);
1353                         jend = gfar_get_next_cluster_end(j, tab);
1354                         if (jend == -1 || iend == -1)
1355                                 break;
1356
1357                         /* First we make some free space, where our cluster
1358                          * element should be. Then we copy it there and finally
1359                          * delete in from its old location.
1360                          */
1361                         if (gfar_expand_filer_entries(iend, (jend - j), tab) ==
1362                             -EINVAL)
1363                                 break;
1364
1365                         gfar_copy_filer_entries(&(tab->fe[iend + 1]),
1366                                                 &(tab->fe[jend + 1]), jend - j);
1367
1368                         if (gfar_trim_filer_entries(jend - 1,
1369                                                     jend + (jend - j),
1370                                                     tab) == -EINVAL)
1371                                 return;
1372
1373                         /* Mask out cluster bit */
1374                         tab->fe[iend].ctrl &= ~(RQFCR_CLE);
1375                 }
1376         }
1377 }
1378
1379 /* Swaps the masked bits of a1<>a2 and b1<>b2 */
1380 static void gfar_swap_bits(struct gfar_filer_entry *a1,
1381                            struct gfar_filer_entry *a2,
1382                            struct gfar_filer_entry *b1,
1383                            struct gfar_filer_entry *b2, u32 mask)
1384 {
1385         u32 temp[4];
1386         temp[0] = a1->ctrl & mask;
1387         temp[1] = a2->ctrl & mask;
1388         temp[2] = b1->ctrl & mask;
1389         temp[3] = b2->ctrl & mask;
1390
1391         a1->ctrl &= ~mask;
1392         a2->ctrl &= ~mask;
1393         b1->ctrl &= ~mask;
1394         b2->ctrl &= ~mask;
1395
1396         a1->ctrl |= temp[1];
1397         a2->ctrl |= temp[0];
1398         b1->ctrl |= temp[3];
1399         b2->ctrl |= temp[2];
1400 }
1401
1402 /* Generate a list consisting of masks values with their start and
1403  * end of validity and block as indicator for parts belonging
1404  * together (glued by ANDs) in mask_table
1405  */
1406 static u32 gfar_generate_mask_table(struct gfar_mask_entry *mask_table,
1407                                     struct filer_table *tab)
1408 {
1409         u32 i, and_index = 0, block_index = 1;
1410
1411         for (i = 0; i < tab->index; i++) {
1412
1413                 /* LSByte of control = 0 sets a mask */
1414                 if (!(tab->fe[i].ctrl & 0xF)) {
1415                         mask_table[and_index].mask = tab->fe[i].prop;
1416                         mask_table[and_index].start = i;
1417                         mask_table[and_index].block = block_index;
1418                         if (and_index >= 1)
1419                                 mask_table[and_index - 1].end = i - 1;
1420                         and_index++;
1421                 }
1422                 /* cluster starts and ends will be separated because they should
1423                  * hold their position
1424                  */
1425                 if (tab->fe[i].ctrl & RQFCR_CLE)
1426                         block_index++;
1427                 /* A not set AND indicates the end of a depended block */
1428                 if (!(tab->fe[i].ctrl & RQFCR_AND))
1429                         block_index++;
1430         }
1431
1432         mask_table[and_index - 1].end = i - 1;
1433
1434         return and_index;
1435 }
1436
1437 /* Sorts the entries of mask_table by the values of the masks.
1438  * Important: The 0xFF80 flags of the first and last entry of a
1439  * block must hold their position (which queue, CLusterEnable, ReJEct,
1440  * AND)
1441  */
1442 static void gfar_sort_mask_table(struct gfar_mask_entry *mask_table,
1443                                  struct filer_table *temp_table, u32 and_index)
1444 {
1445         /* Pointer to compare function (_asc or _desc) */
1446         int (*gfar_comp)(const void *, const void *);
1447
1448         u32 i, size = 0, start = 0, prev = 1;
1449         u32 old_first, old_last, new_first, new_last;
1450
1451         gfar_comp = &gfar_comp_desc;
1452
1453         for (i = 0; i < and_index; i++) {
1454                 if (prev != mask_table[i].block) {
1455                         old_first = mask_table[start].start + 1;
1456                         old_last = mask_table[i - 1].end;
1457                         sort(mask_table + start, size,
1458                              sizeof(struct gfar_mask_entry),
1459                              gfar_comp, &gfar_swap);
1460
1461                         /* Toggle order for every block. This makes the
1462                          * thing more efficient!
1463                          */
1464                         if (gfar_comp == gfar_comp_desc)
1465                                 gfar_comp = &gfar_comp_asc;
1466                         else
1467                                 gfar_comp = &gfar_comp_desc;
1468
1469                         new_first = mask_table[start].start + 1;
1470                         new_last = mask_table[i - 1].end;
1471
1472                         gfar_swap_bits(&temp_table->fe[new_first],
1473                                        &temp_table->fe[old_first],
1474                                        &temp_table->fe[new_last],
1475                                        &temp_table->fe[old_last],
1476                                        RQFCR_QUEUE | RQFCR_CLE |
1477                                        RQFCR_RJE | RQFCR_AND);
1478
1479                         start = i;
1480                         size = 0;
1481                 }
1482                 size++;
1483                 prev = mask_table[i].block;
1484         }
1485 }
1486
1487 /* Reduces the number of masks needed in the filer table to save entries
1488  * This is done by sorting the masks of a depended block. A depended block is
1489  * identified by gluing ANDs or CLE. The sorting order toggles after every
1490  * block. Of course entries in scope of a mask must change their location with
1491  * it.
1492  */
1493 static int gfar_optimize_filer_masks(struct filer_table *tab)
1494 {
1495         struct filer_table *temp_table;
1496         struct gfar_mask_entry *mask_table;
1497
1498         u32 and_index = 0, previous_mask = 0, i = 0, j = 0, size = 0;
1499         s32 ret = 0;
1500
1501         /* We need a copy of the filer table because
1502          * we want to change its order
1503          */
1504         temp_table = kmemdup(tab, sizeof(*temp_table), GFP_KERNEL);
1505         if (temp_table == NULL)
1506                 return -ENOMEM;
1507
1508         mask_table = kcalloc(MAX_FILER_CACHE_IDX / 2 + 1,
1509                              sizeof(struct gfar_mask_entry), GFP_KERNEL);
1510
1511         if (mask_table == NULL) {
1512                 ret = -ENOMEM;
1513                 goto end;
1514         }
1515
1516         and_index = gfar_generate_mask_table(mask_table, tab);
1517
1518         gfar_sort_mask_table(mask_table, temp_table, and_index);
1519
1520         /* Now we can copy the data from our duplicated filer table to
1521          * the real one in the order the mask table says
1522          */
1523         for (i = 0; i < and_index; i++) {
1524                 size = mask_table[i].end - mask_table[i].start + 1;
1525                 gfar_copy_filer_entries(&(tab->fe[j]),
1526                                 &(temp_table->fe[mask_table[i].start]), size);
1527                 j += size;
1528         }
1529
1530         /* And finally we just have to check for duplicated masks and drop the
1531          * second ones
1532          */
1533         for (i = 0; i < tab->index && i < MAX_FILER_CACHE_IDX; i++) {
1534                 if (tab->fe[i].ctrl == 0x80) {
1535                         previous_mask = i++;
1536                         break;
1537                 }
1538         }
1539         for (; i < tab->index && i < MAX_FILER_CACHE_IDX; i++) {
1540                 if (tab->fe[i].ctrl == 0x80) {
1541                         if (tab->fe[i].prop == tab->fe[previous_mask].prop) {
1542                                 /* Two identical ones found!
1543                                  * So drop the second one!
1544                                  */
1545                                 gfar_trim_filer_entries(i, i, tab);
1546                         } else
1547                                 /* Not identical! */
1548                                 previous_mask = i;
1549                 }
1550         }
1551
1552         kfree(mask_table);
1553 end:    kfree(temp_table);
1554         return ret;
1555 }
1556
1557 /* Write the bit-pattern from software's buffer to hardware registers */
1558 static int gfar_write_filer_table(struct gfar_private *priv,
1559                                   struct filer_table *tab)
1560 {
1561         u32 i = 0;
1562         if (tab->index > MAX_FILER_IDX - 1)
1563                 return -EBUSY;
1564
1565         /* Avoid inconsistent filer table to be processed */
1566         lock_rx_qs(priv);
1567
1568         /* Fill regular entries */
1569         for (; i < MAX_FILER_IDX - 1 && (tab->fe[i].ctrl | tab->fe[i].ctrl);
1570              i++)
1571                 gfar_write_filer(priv, i, tab->fe[i].ctrl, tab->fe[i].prop);
1572         /* Fill the rest with fall-troughs */
1573         for (; i < MAX_FILER_IDX - 1; i++)
1574                 gfar_write_filer(priv, i, 0x60, 0xFFFFFFFF);
1575         /* Last entry must be default accept
1576          * because that's what people expect
1577          */
1578         gfar_write_filer(priv, i, 0x20, 0x0);
1579
1580         unlock_rx_qs(priv);
1581
1582         return 0;
1583 }
1584
1585 static int gfar_check_capability(struct ethtool_rx_flow_spec *flow,
1586                                  struct gfar_private *priv)
1587 {
1588
1589         if (flow->flow_type & FLOW_EXT) {
1590                 if (~flow->m_ext.data[0] || ~flow->m_ext.data[1])
1591                         netdev_warn(priv->ndev,
1592                                     "User-specific data not supported!\n");
1593                 if (~flow->m_ext.vlan_etype)
1594                         netdev_warn(priv->ndev,
1595                                     "VLAN-etype not supported!\n");
1596         }
1597         if (flow->flow_type == IP_USER_FLOW)
1598                 if (flow->h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4)
1599                         netdev_warn(priv->ndev,
1600                                     "IP-Version differing from IPv4 not supported!\n");
1601
1602         return 0;
1603 }
1604
1605 static int gfar_process_filer_changes(struct gfar_private *priv)
1606 {
1607         struct ethtool_flow_spec_container *j;
1608         struct filer_table *tab;
1609         s32 i = 0;
1610         s32 ret = 0;
1611
1612         /* So index is set to zero, too! */
1613         tab = kzalloc(sizeof(*tab), GFP_KERNEL);
1614         if (tab == NULL)
1615                 return -ENOMEM;
1616
1617         /* Now convert the existing filer data from flow_spec into
1618          * filer tables binary format
1619          */
1620         list_for_each_entry(j, &priv->rx_list.list, list) {
1621                 ret = gfar_convert_to_filer(&j->fs, tab);
1622                 if (ret == -EBUSY) {
1623                         netdev_err(priv->ndev,
1624                                    "Rule not added: No free space!\n");
1625                         goto end;
1626                 }
1627                 if (ret == -1) {
1628                         netdev_err(priv->ndev,
1629                                    "Rule not added: Unsupported Flow-type!\n");
1630                         goto end;
1631                 }
1632         }
1633
1634         i = tab->index;
1635
1636         /* Optimizations to save entries */
1637         gfar_cluster_filer(tab);
1638         gfar_optimize_filer_masks(tab);
1639
1640         pr_debug("\tSummary:\n"
1641                  "\tData on hardware: %d\n"
1642                  "\tCompression rate: %d%%\n",
1643                  tab->index, 100 - (100 * tab->index) / i);
1644
1645         /* Write everything to hardware */
1646         ret = gfar_write_filer_table(priv, tab);
1647         if (ret == -EBUSY) {
1648                 netdev_err(priv->ndev, "Rule not added: No free space!\n");
1649                 goto end;
1650         }
1651
1652 end:
1653         kfree(tab);
1654         return ret;
1655 }
1656
1657 static void gfar_invert_masks(struct ethtool_rx_flow_spec *flow)
1658 {
1659         u32 i = 0;
1660
1661         for (i = 0; i < sizeof(flow->m_u); i++)
1662                 flow->m_u.hdata[i] ^= 0xFF;
1663
1664         flow->m_ext.vlan_etype ^= cpu_to_be16(0xFFFF);
1665         flow->m_ext.vlan_tci ^= cpu_to_be16(0xFFFF);
1666         flow->m_ext.data[0] ^= cpu_to_be32(~0);
1667         flow->m_ext.data[1] ^= cpu_to_be32(~0);
1668 }
1669
1670 static int gfar_add_cls(struct gfar_private *priv,
1671                         struct ethtool_rx_flow_spec *flow)
1672 {
1673         struct ethtool_flow_spec_container *temp, *comp;
1674         int ret = 0;
1675
1676         temp = kmalloc(sizeof(*temp), GFP_KERNEL);
1677         if (temp == NULL)
1678                 return -ENOMEM;
1679         memcpy(&temp->fs, flow, sizeof(temp->fs));
1680
1681         gfar_invert_masks(&temp->fs);
1682         ret = gfar_check_capability(&temp->fs, priv);
1683         if (ret)
1684                 goto clean_mem;
1685         /* Link in the new element at the right @location */
1686         if (list_empty(&priv->rx_list.list)) {
1687                 ret = gfar_check_filer_hardware(priv);
1688                 if (ret != 0)
1689                         goto clean_mem;
1690                 list_add(&temp->list, &priv->rx_list.list);
1691                 goto process;
1692         } else {
1693                 list_for_each_entry(comp, &priv->rx_list.list, list) {
1694                         if (comp->fs.location > flow->location) {
1695                                 list_add_tail(&temp->list, &comp->list);
1696                                 goto process;
1697                         }
1698                         if (comp->fs.location == flow->location) {
1699                                 netdev_err(priv->ndev,
1700                                            "Rule not added: ID %d not free!\n",
1701                                            flow->location);
1702                                 ret = -EBUSY;
1703                                 goto clean_mem;
1704                         }
1705                 }
1706                 list_add_tail(&temp->list, &priv->rx_list.list);
1707         }
1708
1709 process:
1710         ret = gfar_process_filer_changes(priv);
1711         if (ret)
1712                 goto clean_list;
1713         priv->rx_list.count++;
1714         return ret;
1715
1716 clean_list:
1717         list_del(&temp->list);
1718 clean_mem:
1719         kfree(temp);
1720         return ret;
1721 }
1722
1723 static int gfar_del_cls(struct gfar_private *priv, u32 loc)
1724 {
1725         struct ethtool_flow_spec_container *comp;
1726         u32 ret = -EINVAL;
1727
1728         if (list_empty(&priv->rx_list.list))
1729                 return ret;
1730
1731         list_for_each_entry(comp, &priv->rx_list.list, list) {
1732                 if (comp->fs.location == loc) {
1733                         list_del(&comp->list);
1734                         kfree(comp);
1735                         priv->rx_list.count--;
1736                         gfar_process_filer_changes(priv);
1737                         ret = 0;
1738                         break;
1739                 }
1740         }
1741
1742         return ret;
1743 }
1744
1745 static int gfar_get_cls(struct gfar_private *priv, struct ethtool_rxnfc *cmd)
1746 {
1747         struct ethtool_flow_spec_container *comp;
1748         u32 ret = -EINVAL;
1749
1750         list_for_each_entry(comp, &priv->rx_list.list, list) {
1751                 if (comp->fs.location == cmd->fs.location) {
1752                         memcpy(&cmd->fs, &comp->fs, sizeof(cmd->fs));
1753                         gfar_invert_masks(&cmd->fs);
1754                         ret = 0;
1755                         break;
1756                 }
1757         }
1758
1759         return ret;
1760 }
1761
1762 static int gfar_get_cls_all(struct gfar_private *priv,
1763                             struct ethtool_rxnfc *cmd, u32 *rule_locs)
1764 {
1765         struct ethtool_flow_spec_container *comp;
1766         u32 i = 0;
1767
1768         list_for_each_entry(comp, &priv->rx_list.list, list) {
1769                 if (i == cmd->rule_cnt)
1770                         return -EMSGSIZE;
1771                 rule_locs[i] = comp->fs.location;
1772                 i++;
1773         }
1774
1775         cmd->data = MAX_FILER_IDX;
1776         cmd->rule_cnt = i;
1777
1778         return 0;
1779 }
1780
1781 static int gfar_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
1782 {
1783         struct gfar_private *priv = netdev_priv(dev);
1784         int ret = 0;
1785
1786         mutex_lock(&priv->rx_queue_access);
1787
1788         switch (cmd->cmd) {
1789         case ETHTOOL_SRXFH:
1790                 ret = gfar_set_hash_opts(priv, cmd);
1791                 break;
1792         case ETHTOOL_SRXCLSRLINS:
1793                 if ((cmd->fs.ring_cookie != RX_CLS_FLOW_DISC &&
1794                      cmd->fs.ring_cookie >= priv->num_rx_queues) ||
1795                     cmd->fs.location >= MAX_FILER_IDX) {
1796                         ret = -EINVAL;
1797                         break;
1798                 }
1799                 ret = gfar_add_cls(priv, &cmd->fs);
1800                 break;
1801         case ETHTOOL_SRXCLSRLDEL:
1802                 ret = gfar_del_cls(priv, cmd->fs.location);
1803                 break;
1804         default:
1805                 ret = -EINVAL;
1806         }
1807
1808         mutex_unlock(&priv->rx_queue_access);
1809
1810         return ret;
1811 }
1812
1813 static int gfar_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
1814                         u32 *rule_locs)
1815 {
1816         struct gfar_private *priv = netdev_priv(dev);
1817         int ret = 0;
1818
1819         switch (cmd->cmd) {
1820         case ETHTOOL_GRXRINGS:
1821                 cmd->data = priv->num_rx_queues;
1822                 break;
1823         case ETHTOOL_GRXCLSRLCNT:
1824                 cmd->rule_cnt = priv->rx_list.count;
1825                 break;
1826         case ETHTOOL_GRXCLSRULE:
1827                 ret = gfar_get_cls(priv, cmd);
1828                 break;
1829         case ETHTOOL_GRXCLSRLALL:
1830                 ret = gfar_get_cls_all(priv, cmd, rule_locs);
1831                 break;
1832         default:
1833                 ret = -EINVAL;
1834                 break;
1835         }
1836
1837         return ret;
1838 }
1839
1840 int gfar_phc_index = -1;
1841 EXPORT_SYMBOL(gfar_phc_index);
1842
1843 static int gfar_get_ts_info(struct net_device *dev,
1844                             struct ethtool_ts_info *info)
1845 {
1846         struct gfar_private *priv = netdev_priv(dev);
1847
1848         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER)) {
1849                 info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE |
1850                                         SOF_TIMESTAMPING_SOFTWARE;
1851                 info->phc_index = -1;
1852                 return 0;
1853         }
1854         info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
1855                                 SOF_TIMESTAMPING_RX_HARDWARE |
1856                                 SOF_TIMESTAMPING_RAW_HARDWARE;
1857         info->phc_index = gfar_phc_index;
1858         info->tx_types = (1 << HWTSTAMP_TX_OFF) |
1859                          (1 << HWTSTAMP_TX_ON);
1860         info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
1861                            (1 << HWTSTAMP_FILTER_ALL);
1862         return 0;
1863 }
1864
1865 const struct ethtool_ops gfar_ethtool_ops = {
1866         .get_settings = gfar_gsettings,
1867         .set_settings = gfar_ssettings,
1868         .get_drvinfo = gfar_gdrvinfo,
1869         .get_regs_len = gfar_reglen,
1870         .get_regs = gfar_get_regs,
1871         .get_link = ethtool_op_get_link,
1872         .get_coalesce = gfar_gcoalesce,
1873         .set_coalesce = gfar_scoalesce,
1874         .get_ringparam = gfar_gringparam,
1875         .set_ringparam = gfar_sringparam,
1876         .get_pauseparam = gfar_gpauseparam,
1877         .set_pauseparam = gfar_spauseparam,
1878         .get_strings = gfar_gstrings,
1879         .get_sset_count = gfar_sset_count,
1880         .get_ethtool_stats = gfar_fill_stats,
1881         .get_msglevel = gfar_get_msglevel,
1882         .set_msglevel = gfar_set_msglevel,
1883 #ifdef CONFIG_PM
1884         .get_wol = gfar_get_wol,
1885         .set_wol = gfar_set_wol,
1886 #endif
1887         .set_rxnfc = gfar_set_nfc,
1888         .get_rxnfc = gfar_get_nfc,
1889         .get_ts_info = gfar_get_ts_info,
1890 };