drivers/net/gianfar_ethtool.c

   1 /*
   2  *  drivers/net/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 #include <linux/kernel.h>
  20 #include <linux/string.h>
  21 #include <linux/errno.h>
  22 #include <linux/interrupt.h>
  23 #include <linux/init.h>
  24 #include <linux/delay.h>
  25 #include <linux/netdevice.h>
  26 #include <linux/etherdevice.h>
  27 #include <linux/skbuff.h>
  28 #include <linux/spinlock.h>
  29 #include <linux/mm.h>
  30
  31 #include <asm/io.h>
  32 #include <asm/irq.h>
  33 #include <asm/uaccess.h>
  34 #include <linux/module.h>
  35 #include <linux/crc32.h>
  36 #include <asm/types.h>
  37 #include <linux/ethtool.h>
  38 #include <linux/mii.h>
  39 #include <linux/phy.h>
  40
  41 #include "gianfar.h"
  42
  43 extern void gfar_start(struct net_device *dev);
  44 extern int gfar_clean_rx_ring(struct gfar_priv_rx_q *rx_queue, int rx_work_limit);
  45
  46 #define GFAR_MAX_COAL_USECS 0xffff
  47 #define GFAR_MAX_COAL_FRAMES 0xff
  48 static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy,
  49                      u64 * buf);
  50 static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf);
  51 static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals);
  52 static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals);
  53 static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals);
  54 static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals);
  55 static void gfar_gdrvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo);
  56
  57 static char stat_gstrings[][ETH_GSTRING_LEN] = {
  58         "rx-dropped-by-kernel",
  59         "rx-large-frame-errors",
  60         "rx-short-frame-errors",
  61         "rx-non-octet-errors",
  62         "rx-crc-errors",
  63         "rx-overrun-errors",
  64         "rx-busy-errors",
  65         "rx-babbling-errors",
  66         "rx-truncated-frames",
  67         "ethernet-bus-error",
  68         "tx-babbling-errors",
  69         "tx-underrun-errors",
  70         "rx-skb-missing-errors",
  71         "tx-timeout-errors",
  72         "tx-rx-64-frames",
  73         "tx-rx-65-127-frames",
  74         "tx-rx-128-255-frames",
  75         "tx-rx-256-511-frames",
  76         "tx-rx-512-1023-frames",
  77         "tx-rx-1024-1518-frames",
  78         "tx-rx-1519-1522-good-vlan",
  79         "rx-bytes",
  80         "rx-packets",
  81         "rx-fcs-errors",
  82         "receive-multicast-packet",
  83         "receive-broadcast-packet",
  84         "rx-control-frame-packets",
  85         "rx-pause-frame-packets",
  86         "rx-unknown-op-code",
  87         "rx-alignment-error",
  88         "rx-frame-length-error",
  89         "rx-code-error",
  90         "rx-carrier-sense-error",
  91         "rx-undersize-packets",
  92         "rx-oversize-packets",
  93         "rx-fragmented-frames",
  94         "rx-jabber-frames",
  95         "rx-dropped-frames",
  96         "tx-byte-counter",
  97         "tx-packets",
  98         "tx-multicast-packets",
  99         "tx-broadcast-packets",
 100         "tx-pause-control-frames",
 101         "tx-deferral-packets",
 102         "tx-excessive-deferral-packets",
 103         "tx-single-collision-packets",
 104         "tx-multiple-collision-packets",
 105         "tx-late-collision-packets",
 106         "tx-excessive-collision-packets",
 107         "tx-total-collision",
 108         "reserved",
 109         "tx-dropped-frames",
 110         "tx-jabber-frames",
 111         "tx-fcs-errors",
 112         "tx-control-frames",
 113         "tx-oversize-frames",
 114         "tx-undersize-frames",
 115         "tx-fragmented-frames",
 116 };
 117
 118 /* Fill in a buffer with the strings which correspond to the
 119  * stats */
 120 static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf)
 121 {
 122         struct gfar_private *priv = netdev_priv(dev);
 123
 124         if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON)
 125                 memcpy(buf, stat_gstrings, GFAR_STATS_LEN * ETH_GSTRING_LEN);
 126         else
 127                 memcpy(buf, stat_gstrings,
 128                                 GFAR_EXTRA_STATS_LEN * ETH_GSTRING_LEN);
 129 }
 130
 131 /* Fill in an array of 64-bit statistics from various sources.
 132  * This array will be appended to the end of the ethtool_stats
 133  * structure, and returned to user space
 134  */
 135 static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, u64 * buf)
 136 {
 137         int i;
 138         struct gfar_private *priv = netdev_priv(dev);
 139         struct gfar __iomem *regs = priv->gfargrp[0].regs;
 140         u64 *extra = (u64 *) & priv->extra_stats;
 141
 142         if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) {
 143                 u32 __iomem *rmon = (u32 __iomem *) &regs->rmon;
 144                 struct gfar_stats *stats = (struct gfar_stats *) buf;
 145
 146                 for (i = 0; i < GFAR_RMON_LEN; i++)
 147                         stats->rmon[i] = (u64) gfar_read(&rmon[i]);
 148
 149                 for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++)
 150                         stats->extra[i] = extra[i];
 151         } else
 152                 for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++)
 153                         buf[i] = extra[i];
 154 }
 155
 156 static int gfar_sset_count(struct net_device *dev, int sset)
 157 {
 158         struct gfar_private *priv = netdev_priv(dev);
 159
 160         switch (sset) {
 161         case ETH_SS_STATS:
 162                 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON)
 163                         return GFAR_STATS_LEN;
 164                 else
 165                         return GFAR_EXTRA_STATS_LEN;
 166         default:
 167                 return -EOPNOTSUPP;
 168         }
 169 }
 170
 171 /* Fills in the drvinfo structure with some basic info */
 172 static void gfar_gdrvinfo(struct net_device *dev, struct
 173               ethtool_drvinfo *drvinfo)
 174 {
 175         strncpy(drvinfo->driver, DRV_NAME, GFAR_INFOSTR_LEN);
 176         strncpy(drvinfo->version, gfar_driver_version, GFAR_INFOSTR_LEN);
 177         strncpy(drvinfo->fw_version, "N/A", GFAR_INFOSTR_LEN);
 178         strncpy(drvinfo->bus_info, "N/A", GFAR_INFOSTR_LEN);
 179         drvinfo->regdump_len = 0;
 180         drvinfo->eedump_len = 0;
 181 }
 182
 183
 184 static int gfar_ssettings(struct net_device *dev, struct ethtool_cmd *cmd)
 185 {
 186         struct gfar_private *priv = netdev_priv(dev);
 187         struct phy_device *phydev = priv->phydev;
 188
 189         if (NULL == phydev)
 190                 return -ENODEV;
 191
 192         return phy_ethtool_sset(phydev, cmd);
 193 }
 194
 195
 196 /* Return the current settings in the ethtool_cmd structure */
 197 static int gfar_gsettings(struct net_device *dev, struct ethtool_cmd *cmd)
 198 {
 199         struct gfar_private *priv = netdev_priv(dev);
 200         struct phy_device *phydev = priv->phydev;
 201         struct gfar_priv_rx_q *rx_queue = NULL;
 202         struct gfar_priv_tx_q *tx_queue = NULL;
 203
 204         if (NULL == phydev)
 205                 return -ENODEV;
 206         tx_queue = priv->tx_queue[0];
 207         rx_queue = priv->rx_queue[0];
 208
 209         /* etsec-1.7 and older versions have only one txic
 210          * and rxic regs although they support multiple queues */
 211         cmd->maxtxpkt = get_icft_value(tx_queue->txic);
 212         cmd->maxrxpkt = get_icft_value(rx_queue->rxic);
 213
 214         return phy_ethtool_gset(phydev, cmd);
 215 }
 216
 217 /* Return the length of the register structure */
 218 static int gfar_reglen(struct net_device *dev)
 219 {
 220         return sizeof (struct gfar);
 221 }
 222
 223 /* Return a dump of the GFAR register space */
 224 static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf)
 225 {
 226         int i;
 227         struct gfar_private *priv = netdev_priv(dev);
 228         u32 __iomem *theregs = (u32 __iomem *) priv->gfargrp[0].regs;
 229         u32 *buf = (u32 *) regbuf;
 230
 231         for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++)
 232                 buf[i] = gfar_read(&theregs[i]);
 233 }
 234
 235 /* Convert microseconds to ethernet clock ticks, which changes
 236  * depending on what speed the controller is running at */
 237 static unsigned int gfar_usecs2ticks(struct gfar_private *priv, unsigned int usecs)
 238 {
 239         unsigned int count;
 240
 241         /* The timer is different, depending on the interface speed */
 242         switch (priv->phydev->speed) {
 243         case SPEED_1000:
 244                 count = GFAR_GBIT_TIME;
 245                 break;
 246         case SPEED_100:
 247                 count = GFAR_100_TIME;
 248                 break;
 249         case SPEED_10:
 250         default:
 251                 count = GFAR_10_TIME;
 252                 break;
 253         }
 254
 255         /* Make sure we return a number greater than 0
 256          * if usecs > 0 */
 257         return (usecs * 1000 + count - 1) / count;
 258 }
 259
 260 /* Convert ethernet clock ticks to microseconds */
 261 static unsigned int gfar_ticks2usecs(struct gfar_private *priv, unsigned int ticks)
 262 {
 263         unsigned int count;
 264
 265         /* The timer is different, depending on the interface speed */
 266         switch (priv->phydev->speed) {
 267         case SPEED_1000:
 268                 count = GFAR_GBIT_TIME;
 269                 break;
 270         case SPEED_100:
 271                 count = GFAR_100_TIME;
 272                 break;
 273         case SPEED_10:
 274         default:
 275                 count = GFAR_10_TIME;
 276                 break;
 277         }
 278
 279         /* Make sure we return a number greater than 0 */
 280         /* if ticks is > 0 */
 281         return (ticks * count) / 1000;
 282 }
 283
 284 /* Get the coalescing parameters, and put them in the cvals
 285  * structure.  */
 286 static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals)
 287 {
 288         struct gfar_private *priv = netdev_priv(dev);
 289         struct gfar_priv_rx_q *rx_queue = NULL;
 290         struct gfar_priv_tx_q *tx_queue = NULL;
 291         unsigned long rxtime;
 292         unsigned long rxcount;
 293         unsigned long txtime;
 294         unsigned long txcount;
 295
 296         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
 297                 return -EOPNOTSUPP;
 298
 299         if (NULL == priv->phydev)
 300                 return -ENODEV;
 301
 302         rx_queue = priv->rx_queue[0];
 303         tx_queue = priv->tx_queue[0];
 304
 305         rxtime  = get_ictt_value(rx_queue->rxic);
 306         rxcount = get_icft_value(rx_queue->rxic);
 307         txtime  = get_ictt_value(tx_queue->txic);
 308         txcount = get_icft_value(tx_queue->txic);
 309         cvals->rx_coalesce_usecs = gfar_ticks2usecs(priv, rxtime);
 310         cvals->rx_max_coalesced_frames = rxcount;
 311
 312         cvals->tx_coalesce_usecs = gfar_ticks2usecs(priv, txtime);
 313         cvals->tx_max_coalesced_frames = txcount;
 314
 315         cvals->use_adaptive_rx_coalesce = 0;
 316         cvals->use_adaptive_tx_coalesce = 0;
 317
 318         cvals->pkt_rate_low = 0;
 319         cvals->rx_coalesce_usecs_low = 0;
 320         cvals->rx_max_coalesced_frames_low = 0;
 321         cvals->tx_coalesce_usecs_low = 0;
 322         cvals->tx_max_coalesced_frames_low = 0;
 323
 324         /* When the packet rate is below pkt_rate_high but above
 325          * pkt_rate_low (both measured in packets per second) the
 326          * normal {rx,tx}_* coalescing parameters are used.
 327          */
 328
 329         /* When the packet rate is (measured in packets per second)
 330          * is above pkt_rate_high, the {rx,tx}_*_high parameters are
 331          * used.
 332          */
 333         cvals->pkt_rate_high = 0;
 334         cvals->rx_coalesce_usecs_high = 0;
 335         cvals->rx_max_coalesced_frames_high = 0;
 336         cvals->tx_coalesce_usecs_high = 0;
 337         cvals->tx_max_coalesced_frames_high = 0;
 338
 339         /* How often to do adaptive coalescing packet rate sampling,
 340          * measured in seconds.  Must not be zero.
 341          */
 342         cvals->rate_sample_interval = 0;
 343
 344         return 0;
 345 }
 346
 347 /* Change the coalescing values.
 348  * Both cvals->*_usecs and cvals->*_frames have to be > 0
 349  * in order for coalescing to be active
 350  */
 351 static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals)
 352 {
 353         struct gfar_private *priv = netdev_priv(dev);
 354         int i = 0;
 355
 356         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
 357                 return -EOPNOTSUPP;
 358
 359         /* Set up rx coalescing */
 360         /* As of now, we will enable/disable coalescing for all
 361          * queues together in case of eTSEC2, this will be modified
 362          * along with the ethtool interface */
 363         if ((cvals->rx_coalesce_usecs == 0) ||
 364             (cvals->rx_max_coalesced_frames == 0)) {
 365                 for (i = 0; i < priv->num_rx_queues; i++)
 366                         priv->rx_queue[i]->rxcoalescing = 0;
 367         } else {
 368                 for (i = 0; i < priv->num_rx_queues; i++)
 369                         priv->rx_queue[i]->rxcoalescing = 1;
 370         }
 371
 372         if (NULL == priv->phydev)
 373                 return -ENODEV;
 374
 375         /* Check the bounds of the values */
 376         if (cvals->rx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
 377                 pr_info("Coalescing is limited to %d microseconds\n",
 378                                 GFAR_MAX_COAL_USECS);
 379                 return -EINVAL;
 380         }
 381
 382         if (cvals->rx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
 383                 pr_info("Coalescing is limited to %d frames\n",
 384                                 GFAR_MAX_COAL_FRAMES);
 385                 return -EINVAL;
 386         }
 387
 388         for (i = 0; i < priv->num_rx_queues; i++) {
 389                 priv->rx_queue[i]->rxic = mk_ic_value(
 390                         cvals->rx_max_coalesced_frames,
 391                         gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs));
 392         }
 393
 394         /* Set up tx coalescing */
 395         if ((cvals->tx_coalesce_usecs == 0) ||
 396             (cvals->tx_max_coalesced_frames == 0)) {
 397                 for (i = 0; i < priv->num_tx_queues; i++)
 398                         priv->tx_queue[i]->txcoalescing = 0;
 399         } else {
 400                 for (i = 0; i < priv->num_tx_queues; i++)
 401                         priv->tx_queue[i]->txcoalescing = 1;
 402         }
 403
 404         /* Check the bounds of the values */
 405         if (cvals->tx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
 406                 pr_info("Coalescing is limited to %d microseconds\n",
 407                                 GFAR_MAX_COAL_USECS);
 408                 return -EINVAL;
 409         }
 410
 411         if (cvals->tx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
 412                 pr_info("Coalescing is limited to %d frames\n",
 413                                 GFAR_MAX_COAL_FRAMES);
 414                 return -EINVAL;
 415         }
 416
 417         for (i = 0; i < priv->num_tx_queues; i++) {
 418                 priv->tx_queue[i]->txic = mk_ic_value(
 419                         cvals->tx_max_coalesced_frames,
 420                         gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs));
 421         }
 422
 423         gfar_configure_coalescing(priv, 0xFF, 0xFF);
 424
 425         return 0;
 426 }
 427
 428 /* Fills in rvals with the current ring parameters.  Currently,
 429  * rx, rx_mini, and rx_jumbo rings are the same size, as mini and
 430  * jumbo are ignored by the driver */
 431 static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals)
 432 {
 433         struct gfar_private *priv = netdev_priv(dev);
 434         struct gfar_priv_tx_q *tx_queue = NULL;
 435         struct gfar_priv_rx_q *rx_queue = NULL;
 436
 437         tx_queue = priv->tx_queue[0];
 438         rx_queue = priv->rx_queue[0];
 439
 440         rvals->rx_max_pending = GFAR_RX_MAX_RING_SIZE;
 441         rvals->rx_mini_max_pending = GFAR_RX_MAX_RING_SIZE;
 442         rvals->rx_jumbo_max_pending = GFAR_RX_MAX_RING_SIZE;
 443         rvals->tx_max_pending = GFAR_TX_MAX_RING_SIZE;
 444
 445         /* Values changeable by the user.  The valid values are
 446          * in the range 1 to the "*_max_pending" counterpart above.
 447          */
 448         rvals->rx_pending = rx_queue->rx_ring_size;
 449         rvals->rx_mini_pending = rx_queue->rx_ring_size;
 450         rvals->rx_jumbo_pending = rx_queue->rx_ring_size;
 451         rvals->tx_pending = tx_queue->tx_ring_size;
 452 }
 453
 454 /* Change the current ring parameters, stopping the controller if
 455  * necessary so that we don't mess things up while we're in
 456  * motion.  We wait for the ring to be clean before reallocating
 457  * the rings. */
 458 static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals)
 459 {
 460         struct gfar_private *priv = netdev_priv(dev);
 461         int err = 0, i = 0;
 462
 463         if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE)
 464                 return -EINVAL;
 465
 466         if (!is_power_of_2(rvals->rx_pending)) {
 467                 printk("%s: Ring sizes must be a power of 2\n",
 468                                 dev->name);
 469                 return -EINVAL;
 470         }
 471
 472         if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE)
 473                 return -EINVAL;
 474
 475         if (!is_power_of_2(rvals->tx_pending)) {
 476                 printk("%s: Ring sizes must be a power of 2\n",
 477                                 dev->name);
 478                 return -EINVAL;
 479         }
 480
 481
 482         if (dev->flags & IFF_UP) {
 483                 unsigned long flags;
 484
 485                 /* Halt TX and RX, and process the frames which
 486                  * have already been received */
 487                 local_irq_save(flags);
 488                 lock_tx_qs(priv);
 489                 lock_rx_qs(priv);
 490
 491                 gfar_halt(dev);
 492
 493                 unlock_rx_qs(priv);
 494                 unlock_tx_qs(priv);
 495                 local_irq_restore(flags);
 496
 497                 for (i = 0; i < priv->num_rx_queues; i++)
 498                         gfar_clean_rx_ring(priv->rx_queue[i],
 499                                         priv->rx_queue[i]->rx_ring_size);
 500
 501                 /* Now we take down the rings to rebuild them */
 502                 stop_gfar(dev);
 503         }
 504
 505         /* Change the size */
 506         for (i = 0; i < priv->num_rx_queues; i++) {
 507                 priv->rx_queue[i]->rx_ring_size = rvals->rx_pending;
 508                 priv->tx_queue[i]->tx_ring_size = rvals->tx_pending;
 509                 priv->tx_queue[i]->num_txbdfree = priv->tx_queue[i]->tx_ring_size;
 510         }
 511
 512         /* Rebuild the rings with the new size */
 513         if (dev->flags & IFF_UP) {
 514                 err = startup_gfar(dev);
 515                 netif_tx_wake_all_queues(dev);
 516         }
 517         return err;
 518 }
 519
 520 int gfar_set_features(struct net_device *dev, u32 features)
 521 {
 522         struct gfar_private *priv = netdev_priv(dev);
 523         unsigned long flags;
 524         int err = 0, i = 0;
 525         u32 changed = dev->features ^ features;
 526
 527         if (!(changed & NETIF_F_RXCSUM))
 528                 return 0;
 529
 530         if (dev->flags & IFF_UP) {
 531                 /* Halt TX and RX, and process the frames which
 532                  * have already been received */
 533                 local_irq_save(flags);
 534                 lock_tx_qs(priv);
 535                 lock_rx_qs(priv);
 536
 537                 gfar_halt(dev);
 538
 539                 unlock_tx_qs(priv);
 540                 unlock_rx_qs(priv);
 541                 local_irq_restore(flags);
 542
 543                 for (i = 0; i < priv->num_rx_queues; i++)
 544                         gfar_clean_rx_ring(priv->rx_queue[i],
 545                                         priv->rx_queue[i]->rx_ring_size);
 546
 547                 /* Now we take down the rings to rebuild them */
 548                 stop_gfar(dev);
 549
 550                 dev->features = features;
 551
 552                 err = startup_gfar(dev);
 553                 netif_tx_wake_all_queues(dev);
 554         }
 555         return err;
 556 }
 557
 558 static uint32_t gfar_get_msglevel(struct net_device *dev)
 559 {
 560         struct gfar_private *priv = netdev_priv(dev);
 561         return priv->msg_enable;
 562 }
 563
 564 static void gfar_set_msglevel(struct net_device *dev, uint32_t data)
 565 {
 566         struct gfar_private *priv = netdev_priv(dev);
 567         priv->msg_enable = data;
 568 }
 569
 570 #ifdef CONFIG_PM
 571 static void gfar_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 572 {
 573         struct gfar_private *priv = netdev_priv(dev);
 574
 575         if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) {
 576                 wol->supported = WAKE_MAGIC;
 577                 wol->wolopts = priv->wol_en ? WAKE_MAGIC : 0;
 578         } else {
 579                 wol->supported = wol->wolopts = 0;
 580         }
 581 }
 582
 583 static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 584 {
 585         struct gfar_private *priv = netdev_priv(dev);
 586         unsigned long flags;
 587
 588         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) &&
 589             wol->wolopts != 0)
 590                 return -EINVAL;
 591
 592         if (wol->wolopts & ~WAKE_MAGIC)
 593                 return -EINVAL;
 594
 595         device_set_wakeup_enable(&dev->dev, wol->wolopts & WAKE_MAGIC);
 596
 597         spin_lock_irqsave(&priv->bflock, flags);
 598         priv->wol_en =  !!device_may_wakeup(&dev->dev);
 599         spin_unlock_irqrestore(&priv->bflock, flags);
 600
 601         return 0;
 602 }
 603 #endif
 604
 605 static void ethflow_to_filer_rules (struct gfar_private *priv, u64 ethflow)
 606 {
 607         u32 fcr = 0x0, fpr = FPR_FILER_MASK;
 608
 609         if (ethflow & RXH_L2DA) {
 610                 fcr = RQFCR_PID_DAH |RQFCR_CMP_NOMATCH |
 611                         RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0;
 612                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 613                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 614                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 615                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 616
 617                 fcr = RQFCR_PID_DAL | RQFCR_AND | RQFCR_CMP_NOMATCH |
 618                                 RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0;
 619                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 620                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 621                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 622                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 623         }
 624
 625         if (ethflow & RXH_VLAN) {
 626                 fcr = RQFCR_PID_VID | RQFCR_CMP_NOMATCH | RQFCR_HASH |
 627                                 RQFCR_AND | RQFCR_HASHTBL_0;
 628                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 629                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 630                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 631                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 632         }
 633
 634         if (ethflow & RXH_IP_SRC) {
 635                 fcr = RQFCR_PID_SIA | RQFCR_CMP_NOMATCH | RQFCR_HASH |
 636                         RQFCR_AND | RQFCR_HASHTBL_0;
 637                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 638                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 639                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 640                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 641         }
 642
 643         if (ethflow & (RXH_IP_DST)) {
 644                 fcr = RQFCR_PID_DIA | RQFCR_CMP_NOMATCH | RQFCR_HASH |
 645                         RQFCR_AND | RQFCR_HASHTBL_0;
 646                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 647                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 648                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 649                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 650         }
 651
 652         if (ethflow & RXH_L3_PROTO) {
 653                 fcr = RQFCR_PID_L4P | RQFCR_CMP_NOMATCH | RQFCR_HASH |
 654                         RQFCR_AND | RQFCR_HASHTBL_0;
 655                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 656                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 657                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 658                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 659         }
 660
 661         if (ethflow & RXH_L4_B_0_1) {
 662                 fcr = RQFCR_PID_SPT | RQFCR_CMP_NOMATCH | RQFCR_HASH |
 663                         RQFCR_AND | RQFCR_HASHTBL_0;
 664                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 665                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 666                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 667                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 668         }
 669
 670         if (ethflow & RXH_L4_B_2_3) {
 671                 fcr = RQFCR_PID_DPT | RQFCR_CMP_NOMATCH | RQFCR_HASH |
 672                         RQFCR_AND | RQFCR_HASHTBL_0;
 673                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 674                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 675                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 676                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 677         }
 678 }
 679
 680 static int gfar_ethflow_to_filer_table(struct gfar_private *priv, u64 ethflow, u64 class)
 681 {
 682         unsigned int last_rule_idx = priv->cur_filer_idx;
 683         unsigned int cmp_rqfpr;
 684         unsigned int local_rqfpr[MAX_FILER_IDX + 1];
 685         unsigned int local_rqfcr[MAX_FILER_IDX + 1];
 686         int i = 0x0, k = 0x0;
 687         int j = MAX_FILER_IDX, l = 0x0;
 688
 689         switch (class) {
 690         case TCP_V4_FLOW:
 691                 cmp_rqfpr = RQFPR_IPV4 |RQFPR_TCP;
 692                 break;
 693         case UDP_V4_FLOW:
 694                 cmp_rqfpr = RQFPR_IPV4 |RQFPR_UDP;
 695                 break;
 696         case TCP_V6_FLOW:
 697                 cmp_rqfpr = RQFPR_IPV6 |RQFPR_TCP;
 698                 break;
 699         case UDP_V6_FLOW:
 700                 cmp_rqfpr = RQFPR_IPV6 |RQFPR_UDP;
 701                 break;
 702         default:
 703                 printk(KERN_ERR "Right now this class is not supported\n");
 704                 return 0;
 705         }
 706
 707         for (i = 0; i < MAX_FILER_IDX + 1; i++) {
 708                 local_rqfpr[j] = priv->ftp_rqfpr[i];
 709                 local_rqfcr[j] = priv->ftp_rqfcr[i];
 710                 j--;
 711                 if ((priv->ftp_rqfcr[i] == (RQFCR_PID_PARSE |
 712                         RQFCR_CLE |RQFCR_AND)) &&
 713                         (priv->ftp_rqfpr[i] == cmp_rqfpr))
 714                         break;
 715         }
 716
 717         if (i == MAX_FILER_IDX + 1) {
 718                 printk(KERN_ERR "No parse rule found, ");
 719                 printk(KERN_ERR "can't create hash rules\n");
 720                 return 0;
 721         }
 722
 723         /* If a match was found, then it begins the starting of a cluster rule
 724          * if it was already programmed, we need to overwrite these rules
 725          */
 726         for (l = i+1; l < MAX_FILER_IDX; l++) {
 727                 if ((priv->ftp_rqfcr[l] & RQFCR_CLE) &&
 728                         !(priv->ftp_rqfcr[l] & RQFCR_AND)) {
 729                         priv->ftp_rqfcr[l] = RQFCR_CLE | RQFCR_CMP_EXACT |
 730                                 RQFCR_HASHTBL_0 | RQFCR_PID_MASK;
 731                         priv->ftp_rqfpr[l] = FPR_FILER_MASK;
 732                         gfar_write_filer(priv, l, priv->ftp_rqfcr[l],
 733                                 priv->ftp_rqfpr[l]);
 734                         break;
 735                 }
 736
 737                 if (!(priv->ftp_rqfcr[l] & RQFCR_CLE) &&
 738                         (priv->ftp_rqfcr[l] & RQFCR_AND))
 739                         continue;
 740                 else {
 741                         local_rqfpr[j] = priv->ftp_rqfpr[l];
 742                         local_rqfcr[j] = priv->ftp_rqfcr[l];
 743                         j--;
 744                 }
 745         }
 746
 747         priv->cur_filer_idx = l - 1;
 748         last_rule_idx = l;
 749
 750         /* hash rules */
 751         ethflow_to_filer_rules(priv, ethflow);
 752
 753         /* Write back the popped out rules again */
 754         for (k = j+1; k < MAX_FILER_IDX; k++) {
 755                 priv->ftp_rqfpr[priv->cur_filer_idx] = local_rqfpr[k];
 756                 priv->ftp_rqfcr[priv->cur_filer_idx] = local_rqfcr[k];
 757                 gfar_write_filer(priv, priv->cur_filer_idx,
 758                                 local_rqfcr[k], local_rqfpr[k]);
 759                 if (!priv->cur_filer_idx)
 760                         break;
 761                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 762         }
 763
 764         return 1;
 765 }
 766
 767 static int gfar_set_hash_opts(struct gfar_private *priv, struct ethtool_rxnfc *cmd)
 768 {
 769         /* write the filer rules here */
 770         if (!gfar_ethflow_to_filer_table(priv, cmd->data, cmd->flow_type))
 771                 return -EINVAL;
 772
 773         return 0;
 774 }
 775
 776 static int gfar_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
 777 {
 778         struct gfar_private *priv = netdev_priv(dev);
 779         int ret = 0;
 780
 781         switch(cmd->cmd) {
 782         case ETHTOOL_SRXFH:
 783                 ret = gfar_set_hash_opts(priv, cmd);
 784                 break;
 785         default:
 786                 ret = -EINVAL;
 787         }
 788
 789         return ret;
 790 }
 791
 792 const struct ethtool_ops gfar_ethtool_ops = {
 793         .get_settings = gfar_gsettings,
 794         .set_settings = gfar_ssettings,
 795         .get_drvinfo = gfar_gdrvinfo,
 796         .get_regs_len = gfar_reglen,
 797         .get_regs = gfar_get_regs,
 798         .get_link = ethtool_op_get_link,
 799         .get_coalesce = gfar_gcoalesce,
 800         .set_coalesce = gfar_scoalesce,
 801         .get_ringparam = gfar_gringparam,
 802         .set_ringparam = gfar_sringparam,
 803         .get_strings = gfar_gstrings,
 804         .get_sset_count = gfar_sset_count,
 805         .get_ethtool_stats = gfar_fill_stats,
 806         .get_msglevel = gfar_get_msglevel,
 807         .set_msglevel = gfar_set_msglevel,
 808 #ifdef CONFIG_PM
 809         .get_wol = gfar_get_wol,
 810         .set_wol = gfar_set_wol,
 811 #endif
 812         .set_rxnfc = gfar_set_nfc,
 813 };