drivers/net/ethernet/freescale/gianfar

/* [<][>][^][v][top][bottom][index][help] */
This source file includes following definitions.
gfar_gstrings
gfar_fill_stats
gfar_sset_count
gfar_gdrvinfo
gfar_reglen
gfar_get_regs
gfar_usecs2ticks
gfar_ticks2usecs
gfar_gcoalesce
gfar_scoalesce
gfar_gringparam
gfar_sringparam
gfar_gpauseparam
gfar_spauseparam
gfar_set_features
gfar_get_msglevel
gfar_set_msglevel
gfar_get_wol
gfar_set_wol
ethflow_to_filer_rules
gfar_ethflow_to_filer_table
gfar_set_hash_opts
gfar_check_filer_hardware
gfar_set_mask
gfar_set_parse_bits
gfar_set_general_attribute
gfar_set_attribute
gfar_set_basic_ip
gfar_set_user_ip
gfar_set_ether
vlan_tci_vid
vlan_tci_vidm
vlan_tci_cfi
vlan_tci_cfim
vlan_tci_prio
vlan_tci_priom
gfar_convert_to_filer
gfar_write_filer_table
gfar_check_capability
gfar_process_filer_changes
gfar_invert_masks
gfar_add_cls
gfar_del_cls
gfar_get_cls
gfar_get_cls_all
gfar_set_nfc
gfar_get_nfc
gfar_get_ts_info
   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  *  drivers/net/ethernet/freescale/gianfar_ethtool.c
   4  *
   5  *  Gianfar Ethernet Driver
   6  *  Ethtool support for Gianfar Enet
   7  *  Based on e1000 ethtool support
   8  *
   9  *  Author: Andy Fleming
  10  *  Maintainer: Kumar Gala
  11  *  Modifier: Sandeep Gopalpet <sandeep.kumar@freescale.com>
  12  *
  13  *  Copyright 2003-2006, 2008-2009, 2011 Freescale Semiconductor, Inc.
  14  */
  15 
  16 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  17 
  18 #include <linux/kernel.h>
  19 #include <linux/string.h>
  20 #include <linux/errno.h>
  21 #include <linux/interrupt.h>
  22 #include <linux/delay.h>
  23 #include <linux/netdevice.h>
  24 #include <linux/etherdevice.h>
  25 #include <linux/net_tstamp.h>
  26 #include <linux/skbuff.h>
  27 #include <linux/spinlock.h>
  28 #include <linux/mm.h>
  29 
  30 #include <asm/io.h>
  31 #include <asm/irq.h>
  32 #include <linux/uaccess.h>
  33 #include <linux/module.h>
  34 #include <linux/crc32.h>
  35 #include <asm/types.h>
  36 #include <linux/ethtool.h>
  37 #include <linux/mii.h>
  38 #include <linux/phy.h>
  39 #include <linux/sort.h>
  40 #include <linux/if_vlan.h>
  41 #include <linux/of_platform.h>
  42 #include <linux/fsl/ptp_qoriq.h>
  43 
  44 #include "gianfar.h"
  45 
  46 #define GFAR_MAX_COAL_USECS 0xffff
  47 #define GFAR_MAX_COAL_FRAMES 0xff
  48 
  49 static const char stat_gstrings[][ETH_GSTRING_LEN] = {
  50         /* extra stats */
  51         "rx-allocation-errors",
  52         "rx-large-frame-errors",
  53         "rx-short-frame-errors",
  54         "rx-non-octet-errors",
  55         "rx-crc-errors",
  56         "rx-overrun-errors",
  57         "rx-busy-errors",
  58         "rx-babbling-errors",
  59         "rx-truncated-frames",
  60         "ethernet-bus-error",
  61         "tx-babbling-errors",
  62         "tx-underrun-errors",
  63         "tx-timeout-errors",
  64         /* rmon stats */
  65         "tx-rx-64-frames",
  66         "tx-rx-65-127-frames",
  67         "tx-rx-128-255-frames",
  68         "tx-rx-256-511-frames",
  69         "tx-rx-512-1023-frames",
  70         "tx-rx-1024-1518-frames",
  71         "tx-rx-1519-1522-good-vlan",
  72         "rx-bytes",
  73         "rx-packets",
  74         "rx-fcs-errors",
  75         "receive-multicast-packet",
  76         "receive-broadcast-packet",
  77         "rx-control-frame-packets",
  78         "rx-pause-frame-packets",
  79         "rx-unknown-op-code",
  80         "rx-alignment-error",
  81         "rx-frame-length-error",
  82         "rx-code-error",
  83         "rx-carrier-sense-error",
  84         "rx-undersize-packets",
  85         "rx-oversize-packets",
  86         "rx-fragmented-frames",
  87         "rx-jabber-frames",
  88         "rx-dropped-frames",
  89         "tx-byte-counter",
  90         "tx-packets",
  91         "tx-multicast-packets",
  92         "tx-broadcast-packets",
  93         "tx-pause-control-frames",
  94         "tx-deferral-packets",
  95         "tx-excessive-deferral-packets",
  96         "tx-single-collision-packets",
  97         "tx-multiple-collision-packets",
  98         "tx-late-collision-packets",
  99         "tx-excessive-collision-packets",
 100         "tx-total-collision",
 101         "reserved",
 102         "tx-dropped-frames",
 103         "tx-jabber-frames",
 104         "tx-fcs-errors",
 105         "tx-control-frames",
 106         "tx-oversize-frames",
 107         "tx-undersize-frames",
 108         "tx-fragmented-frames",
 109 };
 110 
 111 /* Fill in a buffer with the strings which correspond to the
 112  * stats */
 113 static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf)
 114 {
 115         struct gfar_private *priv = netdev_priv(dev);
 116 
 117         if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON)
 118                 memcpy(buf, stat_gstrings, GFAR_STATS_LEN * ETH_GSTRING_LEN);
 119         else
 120                 memcpy(buf, stat_gstrings,
 121                        GFAR_EXTRA_STATS_LEN * ETH_GSTRING_LEN);
 122 }
 123 
 124 /* Fill in an array of 64-bit statistics from various sources.
 125  * This array will be appended to the end of the ethtool_stats
 126  * structure, and returned to user space
 127  */
 128 static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy,
 129                             u64 *buf)
 130 {
 131         int i;
 132         struct gfar_private *priv = netdev_priv(dev);
 133         struct gfar __iomem *regs = priv->gfargrp[0].regs;
 134         atomic64_t *extra = (atomic64_t *)&priv->extra_stats;
 135 
 136         for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++)
 137                 buf[i] = atomic64_read(&extra[i]);
 138 
 139         if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) {
 140                 u32 __iomem *rmon = (u32 __iomem *) &regs->rmon;
 141 
 142                 for (; i < GFAR_STATS_LEN; i++, rmon++)
 143                         buf[i] = (u64) gfar_read(rmon);
 144         }
 145 }
 146 
 147 static int gfar_sset_count(struct net_device *dev, int sset)
 148 {
 149         struct gfar_private *priv = netdev_priv(dev);
 150 
 151         switch (sset) {
 152         case ETH_SS_STATS:
 153                 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON)
 154                         return GFAR_STATS_LEN;
 155                 else
 156                         return GFAR_EXTRA_STATS_LEN;
 157         default:
 158                 return -EOPNOTSUPP;
 159         }
 160 }
 161 
 162 /* Fills in the drvinfo structure with some basic info */
 163 static void gfar_gdrvinfo(struct net_device *dev,
 164                           struct ethtool_drvinfo *drvinfo)
 165 {
 166         strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
 167         strlcpy(drvinfo->version, gfar_driver_version,
 168                 sizeof(drvinfo->version));
 169         strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version));
 170         strlcpy(drvinfo->bus_info, "N/A", sizeof(drvinfo->bus_info));
 171 }
 172 
 173 /* Return the length of the register structure */
 174 static int gfar_reglen(struct net_device *dev)
 175 {
 176         return sizeof (struct gfar);
 177 }
 178 
 179 /* Return a dump of the GFAR register space */
 180 static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs,
 181                           void *regbuf)
 182 {
 183         int i;
 184         struct gfar_private *priv = netdev_priv(dev);
 185         u32 __iomem *theregs = (u32 __iomem *) priv->gfargrp[0].regs;
 186         u32 *buf = (u32 *) regbuf;
 187 
 188         for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++)
 189                 buf[i] = gfar_read(&theregs[i]);
 190 }
 191 
 192 /* Convert microseconds to ethernet clock ticks, which changes
 193  * depending on what speed the controller is running at */
 194 static unsigned int gfar_usecs2ticks(struct gfar_private *priv,
 195                                      unsigned int usecs)
 196 {
 197         struct net_device *ndev = priv->ndev;
 198         struct phy_device *phydev = ndev->phydev;
 199         unsigned int count;
 200 
 201         /* The timer is different, depending on the interface speed */
 202         switch (phydev->speed) {
 203         case SPEED_1000:
 204                 count = GFAR_GBIT_TIME;
 205                 break;
 206         case SPEED_100:
 207                 count = GFAR_100_TIME;
 208                 break;
 209         case SPEED_10:
 210         default:
 211                 count = GFAR_10_TIME;
 212                 break;
 213         }
 214 
 215         /* Make sure we return a number greater than 0
 216          * if usecs > 0 */
 217         return DIV_ROUND_UP(usecs * 1000, count);
 218 }
 219 
 220 /* Convert ethernet clock ticks to microseconds */
 221 static unsigned int gfar_ticks2usecs(struct gfar_private *priv,
 222                                      unsigned int ticks)
 223 {
 224         struct net_device *ndev = priv->ndev;
 225         struct phy_device *phydev = ndev->phydev;
 226         unsigned int count;
 227 
 228         /* The timer is different, depending on the interface speed */
 229         switch (phydev->speed) {
 230         case SPEED_1000:
 231                 count = GFAR_GBIT_TIME;
 232                 break;
 233         case SPEED_100:
 234                 count = GFAR_100_TIME;
 235                 break;
 236         case SPEED_10:
 237         default:
 238                 count = GFAR_10_TIME;
 239                 break;
 240         }
 241 
 242         /* Make sure we return a number greater than 0 */
 243         /* if ticks is > 0 */
 244         return (ticks * count) / 1000;
 245 }
 246 
 247 /* Get the coalescing parameters, and put them in the cvals
 248  * structure.  */
 249 static int gfar_gcoalesce(struct net_device *dev,
 250                           struct ethtool_coalesce *cvals)
 251 {
 252         struct gfar_private *priv = netdev_priv(dev);
 253         struct gfar_priv_rx_q *rx_queue = NULL;
 254         struct gfar_priv_tx_q *tx_queue = NULL;
 255         unsigned long rxtime;
 256         unsigned long rxcount;
 257         unsigned long txtime;
 258         unsigned long txcount;
 259 
 260         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
 261                 return -EOPNOTSUPP;
 262 
 263         if (!dev->phydev)
 264                 return -ENODEV;
 265 
 266         rx_queue = priv->rx_queue[0];
 267         tx_queue = priv->tx_queue[0];
 268 
 269         rxtime  = get_ictt_value(rx_queue->rxic);
 270         rxcount = get_icft_value(rx_queue->rxic);
 271         txtime  = get_ictt_value(tx_queue->txic);
 272         txcount = get_icft_value(tx_queue->txic);
 273         cvals->rx_coalesce_usecs = gfar_ticks2usecs(priv, rxtime);
 274         cvals->rx_max_coalesced_frames = rxcount;
 275 
 276         cvals->tx_coalesce_usecs = gfar_ticks2usecs(priv, txtime);
 277         cvals->tx_max_coalesced_frames = txcount;
 278 
 279         cvals->use_adaptive_rx_coalesce = 0;
 280         cvals->use_adaptive_tx_coalesce = 0;
 281 
 282         cvals->pkt_rate_low = 0;
 283         cvals->rx_coalesce_usecs_low = 0;
 284         cvals->rx_max_coalesced_frames_low = 0;
 285         cvals->tx_coalesce_usecs_low = 0;
 286         cvals->tx_max_coalesced_frames_low = 0;
 287 
 288         /* When the packet rate is below pkt_rate_high but above
 289          * pkt_rate_low (both measured in packets per second) the
 290          * normal {rx,tx}_* coalescing parameters are used.
 291          */
 292 
 293         /* When the packet rate is (measured in packets per second)
 294          * is above pkt_rate_high, the {rx,tx}_*_high parameters are
 295          * used.
 296          */
 297         cvals->pkt_rate_high = 0;
 298         cvals->rx_coalesce_usecs_high = 0;
 299         cvals->rx_max_coalesced_frames_high = 0;
 300         cvals->tx_coalesce_usecs_high = 0;
 301         cvals->tx_max_coalesced_frames_high = 0;
 302 
 303         /* How often to do adaptive coalescing packet rate sampling,
 304          * measured in seconds.  Must not be zero.
 305          */
 306         cvals->rate_sample_interval = 0;
 307 
 308         return 0;
 309 }
 310 
 311 /* Change the coalescing values.
 312  * Both cvals->*_usecs and cvals->*_frames have to be > 0
 313  * in order for coalescing to be active
 314  */
 315 static int gfar_scoalesce(struct net_device *dev,
 316                           struct ethtool_coalesce *cvals)
 317 {
 318         struct gfar_private *priv = netdev_priv(dev);
 319         int i, err = 0;
 320 
 321         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
 322                 return -EOPNOTSUPP;
 323 
 324         if (!dev->phydev)
 325                 return -ENODEV;
 326 
 327         /* Check the bounds of the values */
 328         if (cvals->rx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
 329                 netdev_info(dev, "Coalescing is limited to %d microseconds\n",
 330                             GFAR_MAX_COAL_USECS);
 331                 return -EINVAL;
 332         }
 333 
 334         if (cvals->rx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
 335                 netdev_info(dev, "Coalescing is limited to %d frames\n",
 336                             GFAR_MAX_COAL_FRAMES);
 337                 return -EINVAL;
 338         }
 339 
 340         /* Check the bounds of the values */
 341         if (cvals->tx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
 342                 netdev_info(dev, "Coalescing is limited to %d microseconds\n",
 343                             GFAR_MAX_COAL_USECS);
 344                 return -EINVAL;
 345         }
 346 
 347         if (cvals->tx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
 348                 netdev_info(dev, "Coalescing is limited to %d frames\n",
 349                             GFAR_MAX_COAL_FRAMES);
 350                 return -EINVAL;
 351         }
 352 
 353         while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state))
 354                 cpu_relax();
 355 
 356         /* Set up rx coalescing */
 357         if ((cvals->rx_coalesce_usecs == 0) ||
 358             (cvals->rx_max_coalesced_frames == 0)) {
 359                 for (i = 0; i < priv->num_rx_queues; i++)
 360                         priv->rx_queue[i]->rxcoalescing = 0;
 361         } else {
 362                 for (i = 0; i < priv->num_rx_queues; i++)
 363                         priv->rx_queue[i]->rxcoalescing = 1;
 364         }
 365 
 366         for (i = 0; i < priv->num_rx_queues; i++) {
 367                 priv->rx_queue[i]->rxic = mk_ic_value(
 368                         cvals->rx_max_coalesced_frames,
 369                         gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs));
 370         }
 371 
 372         /* Set up tx coalescing */
 373         if ((cvals->tx_coalesce_usecs == 0) ||
 374             (cvals->tx_max_coalesced_frames == 0)) {
 375                 for (i = 0; i < priv->num_tx_queues; i++)
 376                         priv->tx_queue[i]->txcoalescing = 0;
 377         } else {
 378                 for (i = 0; i < priv->num_tx_queues; i++)
 379                         priv->tx_queue[i]->txcoalescing = 1;
 380         }
 381 
 382         for (i = 0; i < priv->num_tx_queues; i++) {
 383                 priv->tx_queue[i]->txic = mk_ic_value(
 384                         cvals->tx_max_coalesced_frames,
 385                         gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs));
 386         }
 387 
 388         if (dev->flags & IFF_UP) {
 389                 stop_gfar(dev);
 390                 err = startup_gfar(dev);
 391         } else {
 392                 gfar_mac_reset(priv);
 393         }
 394 
 395         clear_bit_unlock(GFAR_RESETTING, &priv->state);
 396 
 397         return err;
 398 }
 399 
 400 /* Fills in rvals with the current ring parameters.  Currently,
 401  * rx, rx_mini, and rx_jumbo rings are the same size, as mini and
 402  * jumbo are ignored by the driver */
 403 static void gfar_gringparam(struct net_device *dev,
 404                             struct ethtool_ringparam *rvals)
 405 {
 406         struct gfar_private *priv = netdev_priv(dev);
 407         struct gfar_priv_tx_q *tx_queue = NULL;
 408         struct gfar_priv_rx_q *rx_queue = NULL;
 409 
 410         tx_queue = priv->tx_queue[0];
 411         rx_queue = priv->rx_queue[0];
 412 
 413         rvals->rx_max_pending = GFAR_RX_MAX_RING_SIZE;
 414         rvals->rx_mini_max_pending = GFAR_RX_MAX_RING_SIZE;
 415         rvals->rx_jumbo_max_pending = GFAR_RX_MAX_RING_SIZE;
 416         rvals->tx_max_pending = GFAR_TX_MAX_RING_SIZE;
 417 
 418         /* Values changeable by the user.  The valid values are
 419          * in the range 1 to the "*_max_pending" counterpart above.
 420          */
 421         rvals->rx_pending = rx_queue->rx_ring_size;
 422         rvals->rx_mini_pending = rx_queue->rx_ring_size;
 423         rvals->rx_jumbo_pending = rx_queue->rx_ring_size;
 424         rvals->tx_pending = tx_queue->tx_ring_size;
 425 }
 426 
 427 /* Change the current ring parameters, stopping the controller if
 428  * necessary so that we don't mess things up while we're in motion.
 429  */
 430 static int gfar_sringparam(struct net_device *dev,
 431                            struct ethtool_ringparam *rvals)
 432 {
 433         struct gfar_private *priv = netdev_priv(dev);
 434         int err = 0, i;
 435 
 436         if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE)
 437                 return -EINVAL;
 438 
 439         if (!is_power_of_2(rvals->rx_pending)) {
 440                 netdev_err(dev, "Ring sizes must be a power of 2\n");
 441                 return -EINVAL;
 442         }
 443 
 444         if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE)
 445                 return -EINVAL;
 446 
 447         if (!is_power_of_2(rvals->tx_pending)) {
 448                 netdev_err(dev, "Ring sizes must be a power of 2\n");
 449                 return -EINVAL;
 450         }
 451 
 452         while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state))
 453                 cpu_relax();
 454 
 455         if (dev->flags & IFF_UP)
 456                 stop_gfar(dev);
 457 
 458         /* Change the sizes */
 459         for (i = 0; i < priv->num_rx_queues; i++)
 460                 priv->rx_queue[i]->rx_ring_size = rvals->rx_pending;
 461 
 462         for (i = 0; i < priv->num_tx_queues; i++)
 463                 priv->tx_queue[i]->tx_ring_size = rvals->tx_pending;
 464 
 465         /* Rebuild the rings with the new size */
 466         if (dev->flags & IFF_UP)
 467                 err = startup_gfar(dev);
 468 
 469         clear_bit_unlock(GFAR_RESETTING, &priv->state);
 470 
 471         return err;
 472 }
 473 
 474 static void gfar_gpauseparam(struct net_device *dev,
 475                              struct ethtool_pauseparam *epause)
 476 {
 477         struct gfar_private *priv = netdev_priv(dev);
 478 
 479         epause->autoneg = !!priv->pause_aneg_en;
 480         epause->rx_pause = !!priv->rx_pause_en;
 481         epause->tx_pause = !!priv->tx_pause_en;
 482 }
 483 
 484 static int gfar_spauseparam(struct net_device *dev,
 485                             struct ethtool_pauseparam *epause)
 486 {
 487         struct gfar_private *priv = netdev_priv(dev);
 488         struct phy_device *phydev = dev->phydev;
 489         struct gfar __iomem *regs = priv->gfargrp[0].regs;
 490 
 491         if (!phydev)
 492                 return -ENODEV;
 493 
 494         if (!phy_validate_pause(phydev, epause))
 495                 return -EINVAL;
 496 
 497         priv->rx_pause_en = priv->tx_pause_en = 0;
 498         phy_set_asym_pause(phydev, epause->rx_pause, epause->tx_pause);
 499         if (epause->rx_pause) {
 500                 priv->rx_pause_en = 1;
 501 
 502                 if (epause->tx_pause) {
 503                         priv->tx_pause_en = 1;
 504                 }
 505         } else if (epause->tx_pause) {
 506                 priv->tx_pause_en = 1;
 507         }
 508 
 509         if (epause->autoneg)
 510                 priv->pause_aneg_en = 1;
 511         else
 512                 priv->pause_aneg_en = 0;
 513 
 514         if (!epause->autoneg) {
 515                 u32 tempval = gfar_read(&regs->maccfg1);
 516 
 517                 tempval &= ~(MACCFG1_TX_FLOW | MACCFG1_RX_FLOW);
 518 
 519                 priv->tx_actual_en = 0;
 520                 if (priv->tx_pause_en) {
 521                         priv->tx_actual_en = 1;
 522                         tempval |= MACCFG1_TX_FLOW;
 523                 }
 524 
 525                 if (priv->rx_pause_en)
 526                         tempval |= MACCFG1_RX_FLOW;
 527                 gfar_write(&regs->maccfg1, tempval);
 528         }
 529 
 530         return 0;
 531 }
 532 
 533 int gfar_set_features(struct net_device *dev, netdev_features_t features)
 534 {
 535         netdev_features_t changed = dev->features ^ features;
 536         struct gfar_private *priv = netdev_priv(dev);
 537         int err = 0;
 538 
 539         if (!(changed & (NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
 540                          NETIF_F_RXCSUM)))
 541                 return 0;
 542 
 543         while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state))
 544                 cpu_relax();
 545 
 546         dev->features = features;
 547 
 548         if (dev->flags & IFF_UP) {
 549                 /* Now we take down the rings to rebuild them */
 550                 stop_gfar(dev);
 551                 err = startup_gfar(dev);
 552         } else {
 553                 gfar_mac_reset(priv);
 554         }
 555 
 556         clear_bit_unlock(GFAR_RESETTING, &priv->state);
 557 
 558         return err;
 559 }
 560 
 561 static uint32_t gfar_get_msglevel(struct net_device *dev)
 562 {
 563         struct gfar_private *priv = netdev_priv(dev);
 564 
 565         return priv->msg_enable;
 566 }
 567 
 568 static void gfar_set_msglevel(struct net_device *dev, uint32_t data)
 569 {
 570         struct gfar_private *priv = netdev_priv(dev);
 571 
 572         priv->msg_enable = data;
 573 }
 574 
 575 #ifdef CONFIG_PM
 576 static void gfar_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 577 {
 578         struct gfar_private *priv = netdev_priv(dev);
 579 
 580         wol->supported = 0;
 581         wol->wolopts = 0;
 582 
 583         if (priv->wol_supported & GFAR_WOL_MAGIC)
 584                 wol->supported |= WAKE_MAGIC;
 585 
 586         if (priv->wol_supported & GFAR_WOL_FILER_UCAST)
 587                 wol->supported |= WAKE_UCAST;
 588 
 589         if (priv->wol_opts & GFAR_WOL_MAGIC)
 590                 wol->wolopts |= WAKE_MAGIC;
 591 
 592         if (priv->wol_opts & GFAR_WOL_FILER_UCAST)
 593                 wol->wolopts |= WAKE_UCAST;
 594 }
 595 
 596 static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 597 {
 598         struct gfar_private *priv = netdev_priv(dev);
 599         u16 wol_opts = 0;
 600         int err;
 601 
 602         if (!priv->wol_supported && wol->wolopts)
 603                 return -EINVAL;
 604 
 605         if (wol->wolopts & ~(WAKE_MAGIC | WAKE_UCAST))
 606                 return -EINVAL;
 607 
 608         if (wol->wolopts & WAKE_MAGIC) {
 609                 wol_opts |= GFAR_WOL_MAGIC;
 610         } else {
 611                 if (wol->wolopts & WAKE_UCAST)
 612                         wol_opts |= GFAR_WOL_FILER_UCAST;
 613         }
 614 
 615         wol_opts &= priv->wol_supported;
 616         priv->wol_opts = 0;
 617 
 618         err = device_set_wakeup_enable(priv->dev, wol_opts);
 619         if (err)
 620                 return err;
 621 
 622         priv->wol_opts = wol_opts;
 623 
 624         return 0;
 625 }
 626 #endif
 627 
 628 static void ethflow_to_filer_rules (struct gfar_private *priv, u64 ethflow)
 629 {
 630         u32 fcr = 0x0, fpr = FPR_FILER_MASK;
 631 
 632         if (ethflow & RXH_L2DA) {
 633                 fcr = RQFCR_PID_DAH | RQFCR_CMP_NOMATCH |
 634                       RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0;
 635                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 636                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 637                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 638                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 639 
 640                 fcr = RQFCR_PID_DAL | RQFCR_CMP_NOMATCH |
 641                       RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0;
 642                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 643                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 644                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 645                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 646         }
 647 
 648         if (ethflow & RXH_VLAN) {
 649                 fcr = RQFCR_PID_VID | RQFCR_CMP_NOMATCH | RQFCR_HASH |
 650                       RQFCR_AND | RQFCR_HASHTBL_0;
 651                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 652                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 653                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 654                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 655         }
 656 
 657         if (ethflow & RXH_IP_SRC) {
 658                 fcr = RQFCR_PID_SIA | RQFCR_CMP_NOMATCH | RQFCR_HASH |
 659                       RQFCR_AND | RQFCR_HASHTBL_0;
 660                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 661                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 662                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 663                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 664         }
 665 
 666         if (ethflow & (RXH_IP_DST)) {
 667                 fcr = RQFCR_PID_DIA | RQFCR_CMP_NOMATCH | RQFCR_HASH |
 668                       RQFCR_AND | RQFCR_HASHTBL_0;
 669                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 670                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 671                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 672                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 673         }
 674 
 675         if (ethflow & RXH_L3_PROTO) {
 676                 fcr = RQFCR_PID_L4P | RQFCR_CMP_NOMATCH | RQFCR_HASH |
 677                       RQFCR_AND | RQFCR_HASHTBL_0;
 678                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 679                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 680                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 681                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 682         }
 683 
 684         if (ethflow & RXH_L4_B_0_1) {
 685                 fcr = RQFCR_PID_SPT | RQFCR_CMP_NOMATCH | RQFCR_HASH |
 686                       RQFCR_AND | RQFCR_HASHTBL_0;
 687                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 688                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 689                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 690                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 691         }
 692 
 693         if (ethflow & RXH_L4_B_2_3) {
 694                 fcr = RQFCR_PID_DPT | RQFCR_CMP_NOMATCH | RQFCR_HASH |
 695                       RQFCR_AND | RQFCR_HASHTBL_0;
 696                 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
 697                 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
 698                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
 699                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 700         }
 701 }
 702 
 703 static int gfar_ethflow_to_filer_table(struct gfar_private *priv, u64 ethflow,
 704                                        u64 class)
 705 {
 706         unsigned int cmp_rqfpr;
 707         unsigned int *local_rqfpr;
 708         unsigned int *local_rqfcr;
 709         int i = 0x0, k = 0x0;
 710         int j = MAX_FILER_IDX, l = 0x0;
 711         int ret = 1;
 712 
 713         local_rqfpr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int),
 714                                     GFP_KERNEL);
 715         local_rqfcr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int),
 716                                     GFP_KERNEL);
 717         if (!local_rqfpr || !local_rqfcr) {
 718                 ret = 0;
 719                 goto err;
 720         }
 721 
 722         switch (class) {
 723         case TCP_V4_FLOW:
 724                 cmp_rqfpr = RQFPR_IPV4 |RQFPR_TCP;
 725                 break;
 726         case UDP_V4_FLOW:
 727                 cmp_rqfpr = RQFPR_IPV4 |RQFPR_UDP;
 728                 break;
 729         case TCP_V6_FLOW:
 730                 cmp_rqfpr = RQFPR_IPV6 |RQFPR_TCP;
 731                 break;
 732         case UDP_V6_FLOW:
 733                 cmp_rqfpr = RQFPR_IPV6 |RQFPR_UDP;
 734                 break;
 735         default:
 736                 netdev_err(priv->ndev,
 737                            "Right now this class is not supported\n");
 738                 ret = 0;
 739                 goto err;
 740         }
 741 
 742         for (i = 0; i < MAX_FILER_IDX + 1; i++) {
 743                 local_rqfpr[j] = priv->ftp_rqfpr[i];
 744                 local_rqfcr[j] = priv->ftp_rqfcr[i];
 745                 j--;
 746                 if ((priv->ftp_rqfcr[i] ==
 747                      (RQFCR_PID_PARSE | RQFCR_CLE | RQFCR_AND)) &&
 748                     (priv->ftp_rqfpr[i] == cmp_rqfpr))
 749                         break;
 750         }
 751 
 752         if (i == MAX_FILER_IDX + 1) {
 753                 netdev_err(priv->ndev,
 754                            "No parse rule found, can't create hash rules\n");
 755                 ret = 0;
 756                 goto err;
 757         }
 758 
 759         /* If a match was found, then it begins the starting of a cluster rule
 760          * if it was already programmed, we need to overwrite these rules
 761          */
 762         for (l = i+1; l < MAX_FILER_IDX; l++) {
 763                 if ((priv->ftp_rqfcr[l] & RQFCR_CLE) &&
 764                     !(priv->ftp_rqfcr[l] & RQFCR_AND)) {
 765                         priv->ftp_rqfcr[l] = RQFCR_CLE | RQFCR_CMP_EXACT |
 766                                              RQFCR_HASHTBL_0 | RQFCR_PID_MASK;
 767                         priv->ftp_rqfpr[l] = FPR_FILER_MASK;
 768                         gfar_write_filer(priv, l, priv->ftp_rqfcr[l],
 769                                          priv->ftp_rqfpr[l]);
 770                         break;
 771                 }
 772 
 773                 if (!(priv->ftp_rqfcr[l] & RQFCR_CLE) &&
 774                         (priv->ftp_rqfcr[l] & RQFCR_AND))
 775                         continue;
 776                 else {
 777                         local_rqfpr[j] = priv->ftp_rqfpr[l];
 778                         local_rqfcr[j] = priv->ftp_rqfcr[l];
 779                         j--;
 780                 }
 781         }
 782 
 783         priv->cur_filer_idx = l - 1;
 784 
 785         /* hash rules */
 786         ethflow_to_filer_rules(priv, ethflow);
 787 
 788         /* Write back the popped out rules again */
 789         for (k = j+1; k < MAX_FILER_IDX; k++) {
 790                 priv->ftp_rqfpr[priv->cur_filer_idx] = local_rqfpr[k];
 791                 priv->ftp_rqfcr[priv->cur_filer_idx] = local_rqfcr[k];
 792                 gfar_write_filer(priv, priv->cur_filer_idx,
 793                                  local_rqfcr[k], local_rqfpr[k]);
 794                 if (!priv->cur_filer_idx)
 795                         break;
 796                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
 797         }
 798 
 799 err:
 800         kfree(local_rqfcr);
 801         kfree(local_rqfpr);
 802         return ret;
 803 }
 804 
 805 static int gfar_set_hash_opts(struct gfar_private *priv,
 806                               struct ethtool_rxnfc *cmd)
 807 {
 808         /* write the filer rules here */
 809         if (!gfar_ethflow_to_filer_table(priv, cmd->data, cmd->flow_type))
 810                 return -EINVAL;
 811 
 812         return 0;
 813 }
 814 
 815 static int gfar_check_filer_hardware(struct gfar_private *priv)
 816 {
 817         struct gfar __iomem *regs = priv->gfargrp[0].regs;
 818         u32 i;
 819 
 820         /* Check if we are in FIFO mode */
 821         i = gfar_read(&regs->ecntrl);
 822         i &= ECNTRL_FIFM;
 823         if (i == ECNTRL_FIFM) {
 824                 netdev_notice(priv->ndev, "Interface in FIFO mode\n");
 825                 i = gfar_read(&regs->rctrl);
 826                 i &= RCTRL_PRSDEP_MASK | RCTRL_PRSFM;
 827                 if (i == (RCTRL_PRSDEP_MASK | RCTRL_PRSFM)) {
 828                         netdev_info(priv->ndev,
 829                                     "Receive Queue Filtering enabled\n");
 830                 } else {
 831                         netdev_warn(priv->ndev,
 832                                     "Receive Queue Filtering disabled\n");
 833                         return -EOPNOTSUPP;
 834                 }
 835         }
 836         /* Or in standard mode */
 837         else {
 838                 i = gfar_read(&regs->rctrl);
 839                 i &= RCTRL_PRSDEP_MASK;
 840                 if (i == RCTRL_PRSDEP_MASK) {
 841                         netdev_info(priv->ndev,
 842                                     "Receive Queue Filtering enabled\n");
 843                 } else {
 844                         netdev_warn(priv->ndev,
 845                                     "Receive Queue Filtering disabled\n");
 846                         return -EOPNOTSUPP;
 847                 }
 848         }
 849 
 850         /* Sets the properties for arbitrary filer rule
 851          * to the first 4 Layer 4 Bytes
 852          */
 853         gfar_write(&regs->rbifx, 0xC0C1C2C3);
 854         return 0;
 855 }
 856 
 857 /* Write a mask to filer cache */
 858 static void gfar_set_mask(u32 mask, struct filer_table *tab)
 859 {
 860         tab->fe[tab->index].ctrl = RQFCR_AND | RQFCR_PID_MASK | RQFCR_CMP_EXACT;
 861         tab->fe[tab->index].prop = mask;
 862         tab->index++;
 863 }
 864 
 865 /* Sets parse bits (e.g. IP or TCP) */
 866 static void gfar_set_parse_bits(u32 value, u32 mask, struct filer_table *tab)
 867 {
 868         gfar_set_mask(mask, tab);
 869         tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_PID_PARSE |
 870                                    RQFCR_AND;
 871         tab->fe[tab->index].prop = value;
 872         tab->index++;
 873 }
 874 
 875 static void gfar_set_general_attribute(u32 value, u32 mask, u32 flag,
 876                                        struct filer_table *tab)
 877 {
 878         gfar_set_mask(mask, tab);
 879         tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_AND | flag;
 880         tab->fe[tab->index].prop = value;
 881         tab->index++;
 882 }
 883 
 884 /* For setting a tuple of value and mask of type flag
 885  * Example:
 886  * IP-Src = 10.0.0.0/255.0.0.0
 887  * value: 0x0A000000 mask: FF000000 flag: RQFPR_IPV4
 888  *
 889  * Ethtool gives us a value=0 and mask=~0 for don't care a tuple
 890  * For a don't care mask it gives us a 0
 891  *
 892  * The check if don't care and the mask adjustment if mask=0 is done for VLAN
 893  * and MAC stuff on an upper level (due to missing information on this level).
 894  * For these guys we can discard them if they are value=0 and mask=0.
 895  *
 896  * Further the all masks are one-padded for better hardware efficiency.
 897  */
 898 static void gfar_set_attribute(u32 value, u32 mask, u32 flag,
 899                                struct filer_table *tab)
 900 {
 901         switch (flag) {
 902                 /* 3bit */
 903         case RQFCR_PID_PRI:
 904                 if (!(value | mask))
 905                         return;
 906                 mask |= RQFCR_PID_PRI_MASK;
 907                 break;
 908                 /* 8bit */
 909         case RQFCR_PID_L4P:
 910         case RQFCR_PID_TOS:
 911                 if (!~(mask | RQFCR_PID_L4P_MASK))
 912                         return;
 913                 if (!mask)
 914                         mask = ~0;
 915                 else
 916                         mask |= RQFCR_PID_L4P_MASK;
 917                 break;
 918                 /* 12bit */
 919         case RQFCR_PID_VID:
 920                 if (!(value | mask))
 921                         return;
 922                 mask |= RQFCR_PID_VID_MASK;
 923                 break;
 924                 /* 16bit */
 925         case RQFCR_PID_DPT:
 926         case RQFCR_PID_SPT:
 927         case RQFCR_PID_ETY:
 928                 if (!~(mask | RQFCR_PID_PORT_MASK))
 929                         return;
 930                 if (!mask)
 931                         mask = ~0;
 932                 else
 933                         mask |= RQFCR_PID_PORT_MASK;
 934                 break;
 935                 /* 24bit */
 936         case RQFCR_PID_DAH:
 937         case RQFCR_PID_DAL:
 938         case RQFCR_PID_SAH:
 939         case RQFCR_PID_SAL:
 940                 if (!(value | mask))
 941                         return;
 942                 mask |= RQFCR_PID_MAC_MASK;
 943                 break;
 944                 /* for all real 32bit masks */
 945         default:
 946                 if (!~mask)
 947                         return;
 948                 if (!mask)
 949                         mask = ~0;
 950                 break;
 951         }
 952         gfar_set_general_attribute(value, mask, flag, tab);
 953 }
 954 
 955 /* Translates value and mask for UDP, TCP or SCTP */
 956 static void gfar_set_basic_ip(struct ethtool_tcpip4_spec *value,
 957                               struct ethtool_tcpip4_spec *mask,
 958                               struct filer_table *tab)
 959 {
 960         gfar_set_attribute(be32_to_cpu(value->ip4src),
 961                            be32_to_cpu(mask->ip4src),
 962                            RQFCR_PID_SIA, tab);
 963         gfar_set_attribute(be32_to_cpu(value->ip4dst),
 964                            be32_to_cpu(mask->ip4dst),
 965                            RQFCR_PID_DIA, tab);
 966         gfar_set_attribute(be16_to_cpu(value->pdst),
 967                            be16_to_cpu(mask->pdst),
 968                            RQFCR_PID_DPT, tab);
 969         gfar_set_attribute(be16_to_cpu(value->psrc),
 970                            be16_to_cpu(mask->psrc),
 971                            RQFCR_PID_SPT, tab);
 972         gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab);
 973 }
 974 
 975 /* Translates value and mask for RAW-IP4 */
 976 static void gfar_set_user_ip(struct ethtool_usrip4_spec *value,
 977                              struct ethtool_usrip4_spec *mask,
 978                              struct filer_table *tab)
 979 {
 980         gfar_set_attribute(be32_to_cpu(value->ip4src),
 981                            be32_to_cpu(mask->ip4src),
 982                            RQFCR_PID_SIA, tab);
 983         gfar_set_attribute(be32_to_cpu(value->ip4dst),
 984                            be32_to_cpu(mask->ip4dst),
 985                            RQFCR_PID_DIA, tab);
 986         gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab);
 987         gfar_set_attribute(value->proto, mask->proto, RQFCR_PID_L4P, tab);
 988         gfar_set_attribute(be32_to_cpu(value->l4_4_bytes),
 989                            be32_to_cpu(mask->l4_4_bytes),
 990                            RQFCR_PID_ARB, tab);
 991 
 992 }
 993 
 994 /* Translates value and mask for ETHER spec */
 995 static void gfar_set_ether(struct ethhdr *value, struct ethhdr *mask,
 996                            struct filer_table *tab)
 997 {
 998         u32 upper_temp_mask = 0;
 999         u32 lower_temp_mask = 0;
1000 
1001         /* Source address */
1002         if (!is_broadcast_ether_addr(mask->h_source)) {
1003                 if (is_zero_ether_addr(mask->h_source)) {
1004                         upper_temp_mask = 0xFFFFFFFF;
1005                         lower_temp_mask = 0xFFFFFFFF;
1006                 } else {
1007                         upper_temp_mask = mask->h_source[0] << 16 |
1008                                           mask->h_source[1] << 8  |
1009                                           mask->h_source[2];
1010                         lower_temp_mask = mask->h_source[3] << 16 |
1011                                           mask->h_source[4] << 8  |
1012                                           mask->h_source[5];
1013                 }
1014                 /* Upper 24bit */
1015                 gfar_set_attribute(value->h_source[0] << 16 |
1016                                    value->h_source[1] << 8  |
1017                                    value->h_source[2],
1018                                    upper_temp_mask, RQFCR_PID_SAH, tab);
1019                 /* And the same for the lower part */
1020                 gfar_set_attribute(value->h_source[3] << 16 |
1021                                    value->h_source[4] << 8  |
1022                                    value->h_source[5],
1023                                    lower_temp_mask, RQFCR_PID_SAL, tab);
1024         }
1025         /* Destination address */
1026         if (!is_broadcast_ether_addr(mask->h_dest)) {
1027                 /* Special for destination is limited broadcast */
1028                 if ((is_broadcast_ether_addr(value->h_dest) &&
1029                     is_zero_ether_addr(mask->h_dest))) {
1030                         gfar_set_parse_bits(RQFPR_EBC, RQFPR_EBC, tab);
1031                 } else {
1032                         if (is_zero_ether_addr(mask->h_dest)) {
1033                                 upper_temp_mask = 0xFFFFFFFF;
1034                                 lower_temp_mask = 0xFFFFFFFF;
1035                         } else {
1036                                 upper_temp_mask = mask->h_dest[0] << 16 |
1037                                                   mask->h_dest[1] << 8  |
1038                                                   mask->h_dest[2];
1039                                 lower_temp_mask = mask->h_dest[3] << 16 |
1040                                                   mask->h_dest[4] << 8  |
1041                                                   mask->h_dest[5];
1042                         }
1043 
1044                         /* Upper 24bit */
1045                         gfar_set_attribute(value->h_dest[0] << 16 |
1046                                            value->h_dest[1] << 8  |
1047                                            value->h_dest[2],
1048                                            upper_temp_mask, RQFCR_PID_DAH, tab);
1049                         /* And the same for the lower part */
1050                         gfar_set_attribute(value->h_dest[3] << 16 |
1051                                            value->h_dest[4] << 8  |
1052                                            value->h_dest[5],
1053                                            lower_temp_mask, RQFCR_PID_DAL, tab);
1054                 }
1055         }
1056 
1057         gfar_set_attribute(be16_to_cpu(value->h_proto),
1058                            be16_to_cpu(mask->h_proto),
1059                            RQFCR_PID_ETY, tab);
1060 }
1061 
1062 static inline u32 vlan_tci_vid(struct ethtool_rx_flow_spec *rule)
1063 {
1064         return be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_VID_MASK;
1065 }
1066 
1067 static inline u32 vlan_tci_vidm(struct ethtool_rx_flow_spec *rule)
1068 {
1069         return be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_VID_MASK;
1070 }
1071 
1072 static inline u32 vlan_tci_cfi(struct ethtool_rx_flow_spec *rule)
1073 {
1074         return be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_CFI_MASK;
1075 }
1076 
1077 static inline u32 vlan_tci_cfim(struct ethtool_rx_flow_spec *rule)
1078 {
1079         return be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_CFI_MASK;
1080 }
1081 
1082 static inline u32 vlan_tci_prio(struct ethtool_rx_flow_spec *rule)
1083 {
1084         return (be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_PRIO_MASK) >>
1085                 VLAN_PRIO_SHIFT;
1086 }
1087 
1088 static inline u32 vlan_tci_priom(struct ethtool_rx_flow_spec *rule)
1089 {
1090         return (be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_PRIO_MASK) >>
1091                 VLAN_PRIO_SHIFT;
1092 }
1093 
1094 /* Convert a rule to binary filter format of gianfar */
1095 static int gfar_convert_to_filer(struct ethtool_rx_flow_spec *rule,
1096                                  struct filer_table *tab)
1097 {
1098         u32 vlan = 0, vlan_mask = 0;
1099         u32 id = 0, id_mask = 0;
1100         u32 cfi = 0, cfi_mask = 0;
1101         u32 prio = 0, prio_mask = 0;
1102         u32 old_index = tab->index;
1103 
1104         /* Check if vlan is wanted */
1105         if ((rule->flow_type & FLOW_EXT) &&
1106             (rule->m_ext.vlan_tci != cpu_to_be16(0xFFFF))) {
1107                 if (!rule->m_ext.vlan_tci)
1108                         rule->m_ext.vlan_tci = cpu_to_be16(0xFFFF);
1109 
1110                 vlan = RQFPR_VLN;
1111                 vlan_mask = RQFPR_VLN;
1112 
1113                 /* Separate the fields */
1114                 id = vlan_tci_vid(rule);
1115                 id_mask = vlan_tci_vidm(rule);
1116                 cfi = vlan_tci_cfi(rule);
1117                 cfi_mask = vlan_tci_cfim(rule);
1118                 prio = vlan_tci_prio(rule);
1119                 prio_mask = vlan_tci_priom(rule);
1120 
1121                 if (cfi_mask) {
1122                         if (cfi)
1123                                 vlan |= RQFPR_CFI;
1124                         vlan_mask |= RQFPR_CFI;
1125                 }
1126         }
1127 
1128         switch (rule->flow_type & ~FLOW_EXT) {
1129         case TCP_V4_FLOW:
1130                 gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_TCP | vlan,
1131                                     RQFPR_IPV4 | RQFPR_TCP | vlan_mask, tab);
1132                 gfar_set_basic_ip(&rule->h_u.tcp_ip4_spec,
1133                                   &rule->m_u.tcp_ip4_spec, tab);
1134                 break;
1135         case UDP_V4_FLOW:
1136                 gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_UDP | vlan,
1137                                     RQFPR_IPV4 | RQFPR_UDP | vlan_mask, tab);
1138                 gfar_set_basic_ip(&rule->h_u.udp_ip4_spec,
1139                                   &rule->m_u.udp_ip4_spec, tab);
1140                 break;
1141         case SCTP_V4_FLOW:
1142                 gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask,
1143                                     tab);
1144                 gfar_set_attribute(132, 0, RQFCR_PID_L4P, tab);
1145                 gfar_set_basic_ip((struct ethtool_tcpip4_spec *)&rule->h_u,
1146                                   (struct ethtool_tcpip4_spec *)&rule->m_u,
1147                                   tab);
1148                 break;
1149         case IP_USER_FLOW:
1150                 gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask,
1151                                     tab);
1152                 gfar_set_user_ip((struct ethtool_usrip4_spec *) &rule->h_u,
1153                                  (struct ethtool_usrip4_spec *) &rule->m_u,
1154                                  tab);
1155                 break;
1156         case ETHER_FLOW:
1157                 if (vlan)
1158                         gfar_set_parse_bits(vlan, vlan_mask, tab);
1159                 gfar_set_ether((struct ethhdr *) &rule->h_u,
1160                                (struct ethhdr *) &rule->m_u, tab);
1161                 break;
1162         default:
1163                 return -1;
1164         }
1165 
1166         /* Set the vlan attributes in the end */
1167         if (vlan) {
1168                 gfar_set_attribute(id, id_mask, RQFCR_PID_VID, tab);
1169                 gfar_set_attribute(prio, prio_mask, RQFCR_PID_PRI, tab);
1170         }
1171 
1172         /* If there has been nothing written till now, it must be a default */
1173         if (tab->index == old_index) {
1174                 gfar_set_mask(0xFFFFFFFF, tab);
1175                 tab->fe[tab->index].ctrl = 0x20;
1176                 tab->fe[tab->index].prop = 0x0;
1177                 tab->index++;
1178         }
1179 
1180         /* Remove last AND */
1181         tab->fe[tab->index - 1].ctrl &= (~RQFCR_AND);
1182 
1183         /* Specify which queue to use or to drop */
1184         if (rule->ring_cookie == RX_CLS_FLOW_DISC)
1185                 tab->fe[tab->index - 1].ctrl |= RQFCR_RJE;
1186         else
1187                 tab->fe[tab->index - 1].ctrl |= (rule->ring_cookie << 10);
1188 
1189         /* Only big enough entries can be clustered */
1190         if (tab->index > (old_index + 2)) {
1191                 tab->fe[old_index + 1].ctrl |= RQFCR_CLE;
1192                 tab->fe[tab->index - 1].ctrl |= RQFCR_CLE;
1193         }
1194 
1195         /* In rare cases the cache can be full while there is
1196          * free space in hw
1197          */
1198         if (tab->index > MAX_FILER_CACHE_IDX - 1)
1199                 return -EBUSY;
1200 
1201         return 0;
1202 }
1203 
1204 /* Write the bit-pattern from software's buffer to hardware registers */
1205 static int gfar_write_filer_table(struct gfar_private *priv,
1206                                   struct filer_table *tab)
1207 {
1208         u32 i = 0;
1209         if (tab->index > MAX_FILER_IDX - 1)
1210                 return -EBUSY;
1211 
1212         /* Fill regular entries */
1213         for (; i < MAX_FILER_IDX && (tab->fe[i].ctrl | tab->fe[i].prop); i++)
1214                 gfar_write_filer(priv, i, tab->fe[i].ctrl, tab->fe[i].prop);
1215         /* Fill the rest with fall-troughs */
1216         for (; i < MAX_FILER_IDX; i++)
1217                 gfar_write_filer(priv, i, 0x60, 0xFFFFFFFF);
1218         /* Last entry must be default accept
1219          * because that's what people expect
1220          */
1221         gfar_write_filer(priv, i, 0x20, 0x0);
1222 
1223         return 0;
1224 }
1225 
1226 static int gfar_check_capability(struct ethtool_rx_flow_spec *flow,
1227                                  struct gfar_private *priv)
1228 {
1229 
1230         if (flow->flow_type & FLOW_EXT) {
1231                 if (~flow->m_ext.data[0] || ~flow->m_ext.data[1])
1232                         netdev_warn(priv->ndev,
1233                                     "User-specific data not supported!\n");
1234                 if (~flow->m_ext.vlan_etype)
1235                         netdev_warn(priv->ndev,
1236                                     "VLAN-etype not supported!\n");
1237         }
1238         if (flow->flow_type == IP_USER_FLOW)
1239                 if (flow->h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4)
1240                         netdev_warn(priv->ndev,
1241                                     "IP-Version differing from IPv4 not supported!\n");
1242 
1243         return 0;
1244 }
1245 
1246 static int gfar_process_filer_changes(struct gfar_private *priv)
1247 {
1248         struct ethtool_flow_spec_container *j;
1249         struct filer_table *tab;
1250         s32 ret = 0;
1251 
1252         /* So index is set to zero, too! */
1253         tab = kzalloc(sizeof(*tab), GFP_KERNEL);
1254         if (tab == NULL)
1255                 return -ENOMEM;
1256 
1257         /* Now convert the existing filer data from flow_spec into
1258          * filer tables binary format
1259          */
1260         list_for_each_entry(j, &priv->rx_list.list, list) {
1261                 ret = gfar_convert_to_filer(&j->fs, tab);
1262                 if (ret == -EBUSY) {
1263                         netdev_err(priv->ndev,
1264                                    "Rule not added: No free space!\n");
1265                         goto end;
1266                 }
1267                 if (ret == -1) {
1268                         netdev_err(priv->ndev,
1269                                    "Rule not added: Unsupported Flow-type!\n");
1270                         goto end;
1271                 }
1272         }
1273 
1274         /* Write everything to hardware */
1275         ret = gfar_write_filer_table(priv, tab);
1276         if (ret == -EBUSY) {
1277                 netdev_err(priv->ndev, "Rule not added: No free space!\n");
1278                 goto end;
1279         }
1280 
1281 end:
1282         kfree(tab);
1283         return ret;
1284 }
1285 
1286 static void gfar_invert_masks(struct ethtool_rx_flow_spec *flow)
1287 {
1288         u32 i = 0;
1289 
1290         for (i = 0; i < sizeof(flow->m_u); i++)
1291                 flow->m_u.hdata[i] ^= 0xFF;
1292 
1293         flow->m_ext.vlan_etype ^= cpu_to_be16(0xFFFF);
1294         flow->m_ext.vlan_tci ^= cpu_to_be16(0xFFFF);
1295         flow->m_ext.data[0] ^= cpu_to_be32(~0);
1296         flow->m_ext.data[1] ^= cpu_to_be32(~0);
1297 }
1298 
1299 static int gfar_add_cls(struct gfar_private *priv,
1300                         struct ethtool_rx_flow_spec *flow)
1301 {
1302         struct ethtool_flow_spec_container *temp, *comp;
1303         int ret = 0;
1304 
1305         temp = kmalloc(sizeof(*temp), GFP_KERNEL);
1306         if (temp == NULL)
1307                 return -ENOMEM;
1308         memcpy(&temp->fs, flow, sizeof(temp->fs));
1309 
1310         gfar_invert_masks(&temp->fs);
1311         ret = gfar_check_capability(&temp->fs, priv);
1312         if (ret)
1313                 goto clean_mem;
1314         /* Link in the new element at the right @location */
1315         if (list_empty(&priv->rx_list.list)) {
1316                 ret = gfar_check_filer_hardware(priv);
1317                 if (ret != 0)
1318                         goto clean_mem;
1319                 list_add(&temp->list, &priv->rx_list.list);
1320                 goto process;
1321         } else {
1322                 list_for_each_entry(comp, &priv->rx_list.list, list) {
1323                         if (comp->fs.location > flow->location) {
1324                                 list_add_tail(&temp->list, &comp->list);
1325                                 goto process;
1326                         }
1327                         if (comp->fs.location == flow->location) {
1328                                 netdev_err(priv->ndev,
1329                                            "Rule not added: ID %d not free!\n",
1330                                            flow->location);
1331                                 ret = -EBUSY;
1332                                 goto clean_mem;
1333                         }
1334                 }
1335                 list_add_tail(&temp->list, &priv->rx_list.list);
1336         }
1337 
1338 process:
1339         priv->rx_list.count++;
1340         ret = gfar_process_filer_changes(priv);
1341         if (ret)
1342                 goto clean_list;
1343         return ret;
1344 
1345 clean_list:
1346         priv->rx_list.count--;
1347         list_del(&temp->list);
1348 clean_mem:
1349         kfree(temp);
1350         return ret;
1351 }
1352 
1353 static int gfar_del_cls(struct gfar_private *priv, u32 loc)
1354 {
1355         struct ethtool_flow_spec_container *comp;
1356         u32 ret = -EINVAL;
1357 
1358         if (list_empty(&priv->rx_list.list))
1359                 return ret;
1360 
1361         list_for_each_entry(comp, &priv->rx_list.list, list) {
1362                 if (comp->fs.location == loc) {
1363                         list_del(&comp->list);
1364                         kfree(comp);
1365                         priv->rx_list.count--;
1366                         gfar_process_filer_changes(priv);
1367                         ret = 0;
1368                         break;
1369                 }
1370         }
1371 
1372         return ret;
1373 }
1374 
1375 static int gfar_get_cls(struct gfar_private *priv, struct ethtool_rxnfc *cmd)
1376 {
1377         struct ethtool_flow_spec_container *comp;
1378         u32 ret = -EINVAL;
1379 
1380         list_for_each_entry(comp, &priv->rx_list.list, list) {
1381                 if (comp->fs.location == cmd->fs.location) {
1382                         memcpy(&cmd->fs, &comp->fs, sizeof(cmd->fs));
1383                         gfar_invert_masks(&cmd->fs);
1384                         ret = 0;
1385                         break;
1386                 }
1387         }
1388 
1389         return ret;
1390 }
1391 
1392 static int gfar_get_cls_all(struct gfar_private *priv,
1393                             struct ethtool_rxnfc *cmd, u32 *rule_locs)
1394 {
1395         struct ethtool_flow_spec_container *comp;
1396         u32 i = 0;
1397 
1398         list_for_each_entry(comp, &priv->rx_list.list, list) {
1399                 if (i == cmd->rule_cnt)
1400                         return -EMSGSIZE;
1401                 rule_locs[i] = comp->fs.location;
1402                 i++;
1403         }
1404 
1405         cmd->data = MAX_FILER_IDX;
1406         cmd->rule_cnt = i;
1407 
1408         return 0;
1409 }
1410 
1411 static int gfar_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
1412 {
1413         struct gfar_private *priv = netdev_priv(dev);
1414         int ret = 0;
1415 
1416         if (test_bit(GFAR_RESETTING, &priv->state))
1417                 return -EBUSY;
1418 
1419         mutex_lock(&priv->rx_queue_access);
1420 
1421         switch (cmd->cmd) {
1422         case ETHTOOL_SRXFH:
1423                 ret = gfar_set_hash_opts(priv, cmd);
1424                 break;
1425         case ETHTOOL_SRXCLSRLINS:
1426                 if ((cmd->fs.ring_cookie != RX_CLS_FLOW_DISC &&
1427                      cmd->fs.ring_cookie >= priv->num_rx_queues) ||
1428                     cmd->fs.location >= MAX_FILER_IDX) {
1429                         ret = -EINVAL;
1430                         break;
1431                 }
1432                 ret = gfar_add_cls(priv, &cmd->fs);
1433                 break;
1434         case ETHTOOL_SRXCLSRLDEL:
1435                 ret = gfar_del_cls(priv, cmd->fs.location);
1436                 break;
1437         default:
1438                 ret = -EINVAL;
1439         }
1440 
1441         mutex_unlock(&priv->rx_queue_access);
1442 
1443         return ret;
1444 }
1445 
1446 static int gfar_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
1447                         u32 *rule_locs)
1448 {
1449         struct gfar_private *priv = netdev_priv(dev);
1450         int ret = 0;
1451 
1452         switch (cmd->cmd) {
1453         case ETHTOOL_GRXRINGS:
1454                 cmd->data = priv->num_rx_queues;
1455                 break;
1456         case ETHTOOL_GRXCLSRLCNT:
1457                 cmd->rule_cnt = priv->rx_list.count;
1458                 break;
1459         case ETHTOOL_GRXCLSRULE:
1460                 ret = gfar_get_cls(priv, cmd);
1461                 break;
1462         case ETHTOOL_GRXCLSRLALL:
1463                 ret = gfar_get_cls_all(priv, cmd, rule_locs);
1464                 break;
1465         default:
1466                 ret = -EINVAL;
1467                 break;
1468         }
1469 
1470         return ret;
1471 }
1472 
1473 static int gfar_get_ts_info(struct net_device *dev,
1474                             struct ethtool_ts_info *info)
1475 {
1476         struct gfar_private *priv = netdev_priv(dev);
1477         struct platform_device *ptp_dev;
1478         struct device_node *ptp_node;
1479         struct ptp_qoriq *ptp = NULL;
1480 
1481         info->phc_index = -1;
1482 
1483         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER)) {
1484                 info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE |
1485                                         SOF_TIMESTAMPING_SOFTWARE;
1486                 return 0;
1487         }
1488 
1489         ptp_node = of_find_compatible_node(NULL, NULL, "fsl,etsec-ptp");
1490         if (ptp_node) {
1491                 ptp_dev = of_find_device_by_node(ptp_node);
1492                 if (ptp_dev)
1493                         ptp = platform_get_drvdata(ptp_dev);
1494         }
1495 
1496         if (ptp)
1497                 info->phc_index = ptp->phc_index;
1498 
1499         info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
1500                                 SOF_TIMESTAMPING_RX_HARDWARE |
1501                                 SOF_TIMESTAMPING_RAW_HARDWARE;
1502         info->tx_types = (1 << HWTSTAMP_TX_OFF) |
1503                          (1 << HWTSTAMP_TX_ON);
1504         info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
1505                            (1 << HWTSTAMP_FILTER_ALL);
1506         return 0;
1507 }
1508 
1509 const struct ethtool_ops gfar_ethtool_ops = {
1510         .get_drvinfo = gfar_gdrvinfo,
1511         .get_regs_len = gfar_reglen,
1512         .get_regs = gfar_get_regs,
1513         .get_link = ethtool_op_get_link,
1514         .get_coalesce = gfar_gcoalesce,
1515         .set_coalesce = gfar_scoalesce,
1516         .get_ringparam = gfar_gringparam,
1517         .set_ringparam = gfar_sringparam,
1518         .get_pauseparam = gfar_gpauseparam,
1519         .set_pauseparam = gfar_spauseparam,
1520         .get_strings = gfar_gstrings,
1521         .get_sset_count = gfar_sset_count,
1522         .get_ethtool_stats = gfar_fill_stats,
1523         .get_msglevel = gfar_get_msglevel,
1524         .set_msglevel = gfar_set_msglevel,
1525 #ifdef CONFIG_PM
1526         .get_wol = gfar_get_wol,
1527         .set_wol = gfar_set_wol,
1528 #endif
1529         .set_rxnfc = gfar_set_nfc,
1530         .get_rxnfc = gfar_get_nfc,
1531         .get_ts_info = gfar_get_ts_info,
1532         .get_link_ksettings = phy_ethtool_get_link_ksettings,
1533         .set_link_ksettings = phy_ethtool_set_link_ksettings,
1534 };
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/net/ethernet/freescale/gianfar_ethtool.c

DEFINITIONS
