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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * drivers/net/ethernet/freescale/gianfar_ethtool.c4 *5 * Gianfar Ethernet Driver6 * Ethtool support for Gianfar Enet7 * Based on e1000 ethtool support8 *9 * Author: Andy Fleming10 * Maintainer: Kumar Gala11 * 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 ": " fmt17 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.h>42#include <linux/of_platform.h>43#include <linux/platform_device.h>44#include <linux/fsl/ptp_qoriq.h>45 46#include "gianfar.h"47 48#define GFAR_MAX_COAL_USECS 0xffff49#define GFAR_MAX_COAL_FRAMES 0xff50 51static const char stat_gstrings[][ETH_GSTRING_LEN] = {52 /* extra stats */53 "rx-allocation-errors",54 "rx-large-frame-errors",55 "rx-short-frame-errors",56 "rx-non-octet-errors",57 "rx-crc-errors",58 "rx-overrun-errors",59 "rx-busy-errors",60 "rx-babbling-errors",61 "rx-truncated-frames",62 "ethernet-bus-error",63 "tx-babbling-errors",64 "tx-underrun-errors",65 "tx-timeout-errors",66 /* rmon stats */67 "tx-rx-64-frames",68 "tx-rx-65-127-frames",69 "tx-rx-128-255-frames",70 "tx-rx-256-511-frames",71 "tx-rx-512-1023-frames",72 "tx-rx-1024-1518-frames",73 "tx-rx-1519-1522-good-vlan",74 "rx-bytes",75 "rx-packets",76 "rx-fcs-errors",77 "receive-multicast-packet",78 "receive-broadcast-packet",79 "rx-control-frame-packets",80 "rx-pause-frame-packets",81 "rx-unknown-op-code",82 "rx-alignment-error",83 "rx-frame-length-error",84 "rx-code-error",85 "rx-carrier-sense-error",86 "rx-undersize-packets",87 "rx-oversize-packets",88 "rx-fragmented-frames",89 "rx-jabber-frames",90 "rx-dropped-frames",91 "tx-byte-counter",92 "tx-packets",93 "tx-multicast-packets",94 "tx-broadcast-packets",95 "tx-pause-control-frames",96 "tx-deferral-packets",97 "tx-excessive-deferral-packets",98 "tx-single-collision-packets",99 "tx-multiple-collision-packets",100 "tx-late-collision-packets",101 "tx-excessive-collision-packets",102 "tx-total-collision",103 "reserved",104 "tx-dropped-frames",105 "tx-jabber-frames",106 "tx-fcs-errors",107 "tx-control-frames",108 "tx-oversize-frames",109 "tx-undersize-frames",110 "tx-fragmented-frames",111};112 113/* Fill in a buffer with the strings which correspond to the114 * stats */115static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf)116{117 struct gfar_private *priv = netdev_priv(dev);118 119 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON)120 memcpy(buf, stat_gstrings, GFAR_STATS_LEN * ETH_GSTRING_LEN);121 else122 memcpy(buf, stat_gstrings,123 GFAR_EXTRA_STATS_LEN * ETH_GSTRING_LEN);124}125 126/* Fill in an array of 64-bit statistics from various sources.127 * This array will be appended to the end of the ethtool_stats128 * structure, and returned to user space129 */130static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy,131 u64 *buf)132{133 int i;134 struct gfar_private *priv = netdev_priv(dev);135 struct gfar __iomem *regs = priv->gfargrp[0].regs;136 atomic64_t *extra = (atomic64_t *)&priv->extra_stats;137 138 for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++)139 buf[i] = atomic64_read(&extra[i]);140 141 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) {142 u32 __iomem *rmon = (u32 __iomem *) ®s->rmon;143 144 for (; i < GFAR_STATS_LEN; i++, rmon++)145 buf[i] = (u64) gfar_read(rmon);146 }147}148 149static int gfar_sset_count(struct net_device *dev, int sset)150{151 struct gfar_private *priv = netdev_priv(dev);152 153 switch (sset) {154 case ETH_SS_STATS:155 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON)156 return GFAR_STATS_LEN;157 else158 return GFAR_EXTRA_STATS_LEN;159 default:160 return -EOPNOTSUPP;161 }162}163 164/* Fills in the drvinfo structure with some basic info */165static void gfar_gdrvinfo(struct net_device *dev,166 struct ethtool_drvinfo *drvinfo)167{168 strscpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));169}170 171/* Return the length of the register structure */172static int gfar_reglen(struct net_device *dev)173{174 return sizeof (struct gfar);175}176 177/* Return a dump of the GFAR register space */178static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs,179 void *regbuf)180{181 int i;182 struct gfar_private *priv = netdev_priv(dev);183 u32 __iomem *theregs = (u32 __iomem *) priv->gfargrp[0].regs;184 u32 *buf = (u32 *) regbuf;185 186 for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++)187 buf[i] = gfar_read(&theregs[i]);188}189 190/* Convert microseconds to ethernet clock ticks, which changes191 * depending on what speed the controller is running at */192static unsigned int gfar_usecs2ticks(struct gfar_private *priv,193 unsigned int usecs)194{195 struct net_device *ndev = priv->ndev;196 struct phy_device *phydev = ndev->phydev;197 unsigned int count;198 199 /* The timer is different, depending on the interface speed */200 switch (phydev->speed) {201 case SPEED_1000:202 count = GFAR_GBIT_TIME;203 break;204 case SPEED_100:205 count = GFAR_100_TIME;206 break;207 case SPEED_10:208 default:209 count = GFAR_10_TIME;210 break;211 }212 213 /* Make sure we return a number greater than 0214 * if usecs > 0 */215 return DIV_ROUND_UP(usecs * 1000, count);216}217 218/* Convert ethernet clock ticks to microseconds */219static unsigned int gfar_ticks2usecs(struct gfar_private *priv,220 unsigned int ticks)221{222 struct net_device *ndev = priv->ndev;223 struct phy_device *phydev = ndev->phydev;224 unsigned int count;225 226 /* The timer is different, depending on the interface speed */227 switch (phydev->speed) {228 case SPEED_1000:229 count = GFAR_GBIT_TIME;230 break;231 case SPEED_100:232 count = GFAR_100_TIME;233 break;234 case SPEED_10:235 default:236 count = GFAR_10_TIME;237 break;238 }239 240 /* Make sure we return a number greater than 0 */241 /* if ticks is > 0 */242 return (ticks * count) / 1000;243}244 245/* Get the coalescing parameters, and put them in the cvals246 * structure. */247static int gfar_gcoalesce(struct net_device *dev,248 struct ethtool_coalesce *cvals,249 struct kernel_ethtool_coalesce *kernel_coal,250 struct netlink_ext_ack *extack)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 return 0;280}281 282/* Change the coalescing values.283 * Both cvals->*_usecs and cvals->*_frames have to be > 0284 * in order for coalescing to be active285 */286static int gfar_scoalesce(struct net_device *dev,287 struct ethtool_coalesce *cvals,288 struct kernel_ethtool_coalesce *kernel_coal,289 struct netlink_ext_ack *extack)290{291 struct gfar_private *priv = netdev_priv(dev);292 int i, err = 0;293 294 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))295 return -EOPNOTSUPP;296 297 if (!dev->phydev)298 return -ENODEV;299 300 /* Check the bounds of the values */301 if (cvals->rx_coalesce_usecs > GFAR_MAX_COAL_USECS) {302 netdev_info(dev, "Coalescing is limited to %d microseconds\n",303 GFAR_MAX_COAL_USECS);304 return -EINVAL;305 }306 307 if (cvals->rx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {308 netdev_info(dev, "Coalescing is limited to %d frames\n",309 GFAR_MAX_COAL_FRAMES);310 return -EINVAL;311 }312 313 /* Check the bounds of the values */314 if (cvals->tx_coalesce_usecs > GFAR_MAX_COAL_USECS) {315 netdev_info(dev, "Coalescing is limited to %d microseconds\n",316 GFAR_MAX_COAL_USECS);317 return -EINVAL;318 }319 320 if (cvals->tx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {321 netdev_info(dev, "Coalescing is limited to %d frames\n",322 GFAR_MAX_COAL_FRAMES);323 return -EINVAL;324 }325 326 while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state))327 cpu_relax();328 329 /* Set up rx coalescing */330 if ((cvals->rx_coalesce_usecs == 0) ||331 (cvals->rx_max_coalesced_frames == 0)) {332 for (i = 0; i < priv->num_rx_queues; i++)333 priv->rx_queue[i]->rxcoalescing = 0;334 } else {335 for (i = 0; i < priv->num_rx_queues; i++)336 priv->rx_queue[i]->rxcoalescing = 1;337 }338 339 for (i = 0; i < priv->num_rx_queues; i++) {340 priv->rx_queue[i]->rxic = mk_ic_value(341 cvals->rx_max_coalesced_frames,342 gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs));343 }344 345 /* Set up tx coalescing */346 if ((cvals->tx_coalesce_usecs == 0) ||347 (cvals->tx_max_coalesced_frames == 0)) {348 for (i = 0; i < priv->num_tx_queues; i++)349 priv->tx_queue[i]->txcoalescing = 0;350 } else {351 for (i = 0; i < priv->num_tx_queues; i++)352 priv->tx_queue[i]->txcoalescing = 1;353 }354 355 for (i = 0; i < priv->num_tx_queues; i++) {356 priv->tx_queue[i]->txic = mk_ic_value(357 cvals->tx_max_coalesced_frames,358 gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs));359 }360 361 if (dev->flags & IFF_UP) {362 stop_gfar(dev);363 err = startup_gfar(dev);364 } else {365 gfar_mac_reset(priv);366 }367 368 clear_bit_unlock(GFAR_RESETTING, &priv->state);369 370 return err;371}372 373/* Fills in rvals with the current ring parameters. Currently,374 * rx, rx_mini, and rx_jumbo rings are the same size, as mini and375 * jumbo are ignored by the driver */376static void gfar_gringparam(struct net_device *dev,377 struct ethtool_ringparam *rvals,378 struct kernel_ethtool_ringparam *kernel_rvals,379 struct netlink_ext_ack *extack)380{381 struct gfar_private *priv = netdev_priv(dev);382 struct gfar_priv_tx_q *tx_queue = NULL;383 struct gfar_priv_rx_q *rx_queue = NULL;384 385 tx_queue = priv->tx_queue[0];386 rx_queue = priv->rx_queue[0];387 388 rvals->rx_max_pending = GFAR_RX_MAX_RING_SIZE;389 rvals->rx_mini_max_pending = GFAR_RX_MAX_RING_SIZE;390 rvals->rx_jumbo_max_pending = GFAR_RX_MAX_RING_SIZE;391 rvals->tx_max_pending = GFAR_TX_MAX_RING_SIZE;392 393 /* Values changeable by the user. The valid values are394 * in the range 1 to the "*_max_pending" counterpart above.395 */396 rvals->rx_pending = rx_queue->rx_ring_size;397 rvals->rx_mini_pending = rx_queue->rx_ring_size;398 rvals->rx_jumbo_pending = rx_queue->rx_ring_size;399 rvals->tx_pending = tx_queue->tx_ring_size;400}401 402/* Change the current ring parameters, stopping the controller if403 * necessary so that we don't mess things up while we're in motion.404 */405static int gfar_sringparam(struct net_device *dev,406 struct ethtool_ringparam *rvals,407 struct kernel_ethtool_ringparam *kernel_rvals,408 struct netlink_ext_ack *extack)409{410 struct gfar_private *priv = netdev_priv(dev);411 int err = 0, i;412 413 if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE)414 return -EINVAL;415 416 if (!is_power_of_2(rvals->rx_pending)) {417 netdev_err(dev, "Ring sizes must be a power of 2\n");418 return -EINVAL;419 }420 421 if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE)422 return -EINVAL;423 424 if (!is_power_of_2(rvals->tx_pending)) {425 netdev_err(dev, "Ring sizes must be a power of 2\n");426 return -EINVAL;427 }428 429 while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state))430 cpu_relax();431 432 if (dev->flags & IFF_UP)433 stop_gfar(dev);434 435 /* Change the sizes */436 for (i = 0; i < priv->num_rx_queues; i++)437 priv->rx_queue[i]->rx_ring_size = rvals->rx_pending;438 439 for (i = 0; i < priv->num_tx_queues; i++)440 priv->tx_queue[i]->tx_ring_size = rvals->tx_pending;441 442 /* Rebuild the rings with the new size */443 if (dev->flags & IFF_UP)444 err = startup_gfar(dev);445 446 clear_bit_unlock(GFAR_RESETTING, &priv->state);447 448 return err;449}450 451static void gfar_gpauseparam(struct net_device *dev,452 struct ethtool_pauseparam *epause)453{454 struct gfar_private *priv = netdev_priv(dev);455 456 epause->autoneg = !!priv->pause_aneg_en;457 epause->rx_pause = !!priv->rx_pause_en;458 epause->tx_pause = !!priv->tx_pause_en;459}460 461static int gfar_spauseparam(struct net_device *dev,462 struct ethtool_pauseparam *epause)463{464 struct gfar_private *priv = netdev_priv(dev);465 struct phy_device *phydev = dev->phydev;466 struct gfar __iomem *regs = priv->gfargrp[0].regs;467 468 if (!phydev)469 return -ENODEV;470 471 if (!phy_validate_pause(phydev, epause))472 return -EINVAL;473 474 priv->rx_pause_en = priv->tx_pause_en = 0;475 phy_set_asym_pause(phydev, epause->rx_pause, epause->tx_pause);476 if (epause->rx_pause) {477 priv->rx_pause_en = 1;478 479 if (epause->tx_pause) {480 priv->tx_pause_en = 1;481 }482 } else if (epause->tx_pause) {483 priv->tx_pause_en = 1;484 }485 486 if (epause->autoneg)487 priv->pause_aneg_en = 1;488 else489 priv->pause_aneg_en = 0;490 491 if (!epause->autoneg) {492 u32 tempval = gfar_read(®s->maccfg1);493 494 tempval &= ~(MACCFG1_TX_FLOW | MACCFG1_RX_FLOW);495 496 priv->tx_actual_en = 0;497 if (priv->tx_pause_en) {498 priv->tx_actual_en = 1;499 tempval |= MACCFG1_TX_FLOW;500 }501 502 if (priv->rx_pause_en)503 tempval |= MACCFG1_RX_FLOW;504 gfar_write(®s->maccfg1, tempval);505 }506 507 return 0;508}509 510int gfar_set_features(struct net_device *dev, netdev_features_t features)511{512 netdev_features_t changed = dev->features ^ features;513 struct gfar_private *priv = netdev_priv(dev);514 int err = 0;515 516 if (!(changed & (NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |517 NETIF_F_RXCSUM)))518 return 0;519 520 while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state))521 cpu_relax();522 523 dev->features = features;524 525 if (dev->flags & IFF_UP) {526 /* Now we take down the rings to rebuild them */527 stop_gfar(dev);528 err = startup_gfar(dev);529 } else {530 gfar_mac_reset(priv);531 }532 533 clear_bit_unlock(GFAR_RESETTING, &priv->state);534 535 return err;536}537 538static uint32_t gfar_get_msglevel(struct net_device *dev)539{540 struct gfar_private *priv = netdev_priv(dev);541 542 return priv->msg_enable;543}544 545static void gfar_set_msglevel(struct net_device *dev, uint32_t data)546{547 struct gfar_private *priv = netdev_priv(dev);548 549 priv->msg_enable = data;550}551 552#ifdef CONFIG_PM553static void gfar_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)554{555 struct gfar_private *priv = netdev_priv(dev);556 557 wol->supported = 0;558 wol->wolopts = 0;559 560 if (priv->wol_supported & GFAR_WOL_MAGIC)561 wol->supported |= WAKE_MAGIC;562 563 if (priv->wol_supported & GFAR_WOL_FILER_UCAST)564 wol->supported |= WAKE_UCAST;565 566 if (priv->wol_opts & GFAR_WOL_MAGIC)567 wol->wolopts |= WAKE_MAGIC;568 569 if (priv->wol_opts & GFAR_WOL_FILER_UCAST)570 wol->wolopts |= WAKE_UCAST;571}572 573static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)574{575 struct gfar_private *priv = netdev_priv(dev);576 u16 wol_opts = 0;577 int err;578 579 if (!priv->wol_supported && wol->wolopts)580 return -EINVAL;581 582 if (wol->wolopts & ~(WAKE_MAGIC | WAKE_UCAST))583 return -EINVAL;584 585 if (wol->wolopts & WAKE_MAGIC) {586 wol_opts |= GFAR_WOL_MAGIC;587 } else {588 if (wol->wolopts & WAKE_UCAST)589 wol_opts |= GFAR_WOL_FILER_UCAST;590 }591 592 wol_opts &= priv->wol_supported;593 priv->wol_opts = 0;594 595 err = device_set_wakeup_enable(priv->dev, wol_opts);596 if (err)597 return err;598 599 priv->wol_opts = wol_opts;600 601 return 0;602}603#endif604 605static 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_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 680static int gfar_ethflow_to_filer_table(struct gfar_private *priv, u64 ethflow,681 u64 class)682{683 unsigned int cmp_rqfpr;684 unsigned int *local_rqfpr;685 unsigned int *local_rqfcr;686 int i = 0x0, k = 0x0;687 int j = MAX_FILER_IDX, l = 0x0;688 int ret = 1;689 690 local_rqfpr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int),691 GFP_KERNEL);692 local_rqfcr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int),693 GFP_KERNEL);694 if (!local_rqfpr || !local_rqfcr) {695 ret = 0;696 goto err;697 }698 699 switch (class) {700 case TCP_V4_FLOW:701 cmp_rqfpr = RQFPR_IPV4 |RQFPR_TCP;702 break;703 case UDP_V4_FLOW:704 cmp_rqfpr = RQFPR_IPV4 |RQFPR_UDP;705 break;706 case TCP_V6_FLOW:707 cmp_rqfpr = RQFPR_IPV6 |RQFPR_TCP;708 break;709 case UDP_V6_FLOW:710 cmp_rqfpr = RQFPR_IPV6 |RQFPR_UDP;711 break;712 default:713 netdev_err(priv->ndev,714 "Right now this class is not supported\n");715 ret = 0;716 goto err;717 }718 719 for (i = 0; i < MAX_FILER_IDX + 1; i++) {720 local_rqfpr[j] = priv->ftp_rqfpr[i];721 local_rqfcr[j] = priv->ftp_rqfcr[i];722 j--;723 if ((priv->ftp_rqfcr[i] ==724 (RQFCR_PID_PARSE | RQFCR_CLE | RQFCR_AND)) &&725 (priv->ftp_rqfpr[i] == cmp_rqfpr))726 break;727 }728 729 if (i == MAX_FILER_IDX + 1) {730 netdev_err(priv->ndev,731 "No parse rule found, can't create hash rules\n");732 ret = 0;733 goto err;734 }735 736 /* If a match was found, then it begins the starting of a cluster rule737 * if it was already programmed, we need to overwrite these rules738 */739 for (l = i+1; l < MAX_FILER_IDX; l++) {740 if ((priv->ftp_rqfcr[l] & RQFCR_CLE) &&741 !(priv->ftp_rqfcr[l] & RQFCR_AND)) {742 priv->ftp_rqfcr[l] = RQFCR_CLE | RQFCR_CMP_EXACT |743 RQFCR_HASHTBL_0 | RQFCR_PID_MASK;744 priv->ftp_rqfpr[l] = FPR_FILER_MASK;745 gfar_write_filer(priv, l, priv->ftp_rqfcr[l],746 priv->ftp_rqfpr[l]);747 break;748 }749 750 if (!(priv->ftp_rqfcr[l] & RQFCR_CLE) &&751 (priv->ftp_rqfcr[l] & RQFCR_AND))752 continue;753 else {754 local_rqfpr[j] = priv->ftp_rqfpr[l];755 local_rqfcr[j] = priv->ftp_rqfcr[l];756 j--;757 }758 }759 760 priv->cur_filer_idx = l - 1;761 762 /* hash rules */763 ethflow_to_filer_rules(priv, ethflow);764 765 /* Write back the popped out rules again */766 for (k = j+1; k < MAX_FILER_IDX; k++) {767 priv->ftp_rqfpr[priv->cur_filer_idx] = local_rqfpr[k];768 priv->ftp_rqfcr[priv->cur_filer_idx] = local_rqfcr[k];769 gfar_write_filer(priv, priv->cur_filer_idx,770 local_rqfcr[k], local_rqfpr[k]);771 if (!priv->cur_filer_idx)772 break;773 priv->cur_filer_idx = priv->cur_filer_idx - 1;774 }775 776err:777 kfree(local_rqfcr);778 kfree(local_rqfpr);779 return ret;780}781 782static int gfar_set_hash_opts(struct gfar_private *priv,783 struct ethtool_rxnfc *cmd)784{785 /* write the filer rules here */786 if (!gfar_ethflow_to_filer_table(priv, cmd->data, cmd->flow_type))787 return -EINVAL;788 789 return 0;790}791 792static int gfar_check_filer_hardware(struct gfar_private *priv)793{794 struct gfar __iomem *regs = priv->gfargrp[0].regs;795 u32 i;796 797 /* Check if we are in FIFO mode */798 i = gfar_read(®s->ecntrl);799 i &= ECNTRL_FIFM;800 if (i == ECNTRL_FIFM) {801 netdev_notice(priv->ndev, "Interface in FIFO mode\n");802 i = gfar_read(®s->rctrl);803 i &= RCTRL_PRSDEP_MASK | RCTRL_PRSFM;804 if (i == (RCTRL_PRSDEP_MASK | RCTRL_PRSFM)) {805 netdev_info(priv->ndev,806 "Receive Queue Filtering enabled\n");807 } else {808 netdev_warn(priv->ndev,809 "Receive Queue Filtering disabled\n");810 return -EOPNOTSUPP;811 }812 }813 /* Or in standard mode */814 else {815 i = gfar_read(®s->rctrl);816 i &= RCTRL_PRSDEP_MASK;817 if (i == RCTRL_PRSDEP_MASK) {818 netdev_info(priv->ndev,819 "Receive Queue Filtering enabled\n");820 } else {821 netdev_warn(priv->ndev,822 "Receive Queue Filtering disabled\n");823 return -EOPNOTSUPP;824 }825 }826 827 /* Sets the properties for arbitrary filer rule828 * to the first 4 Layer 4 Bytes829 */830 gfar_write(®s->rbifx, 0xC0C1C2C3);831 return 0;832}833 834/* Write a mask to filer cache */835static void gfar_set_mask(u32 mask, struct filer_table *tab)836{837 tab->fe[tab->index].ctrl = RQFCR_AND | RQFCR_PID_MASK | RQFCR_CMP_EXACT;838 tab->fe[tab->index].prop = mask;839 tab->index++;840}841 842/* Sets parse bits (e.g. IP or TCP) */843static void gfar_set_parse_bits(u32 value, u32 mask, struct filer_table *tab)844{845 gfar_set_mask(mask, tab);846 tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_PID_PARSE |847 RQFCR_AND;848 tab->fe[tab->index].prop = value;849 tab->index++;850}851 852static void gfar_set_general_attribute(u32 value, u32 mask, u32 flag,853 struct filer_table *tab)854{855 gfar_set_mask(mask, tab);856 tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_AND | flag;857 tab->fe[tab->index].prop = value;858 tab->index++;859}860 861/* For setting a tuple of value and mask of type flag862 * Example:863 * IP-Src = 10.0.0.0/255.0.0.0864 * value: 0x0A000000 mask: FF000000 flag: RQFPR_IPV4865 *866 * Ethtool gives us a value=0 and mask=~0 for don't care a tuple867 * For a don't care mask it gives us a 0868 *869 * The check if don't care and the mask adjustment if mask=0 is done for VLAN870 * and MAC stuff on an upper level (due to missing information on this level).871 * For these guys we can discard them if they are value=0 and mask=0.872 *873 * Further the all masks are one-padded for better hardware efficiency.874 */875static void gfar_set_attribute(u32 value, u32 mask, u32 flag,876 struct filer_table *tab)877{878 switch (flag) {879 /* 3bit */880 case RQFCR_PID_PRI:881 if (!(value | mask))882 return;883 mask |= RQFCR_PID_PRI_MASK;884 break;885 /* 8bit */886 case RQFCR_PID_L4P:887 case RQFCR_PID_TOS:888 if (!~(mask | RQFCR_PID_L4P_MASK))889 return;890 if (!mask)891 mask = ~0;892 else893 mask |= RQFCR_PID_L4P_MASK;894 break;895 /* 12bit */896 case RQFCR_PID_VID:897 if (!(value | mask))898 return;899 mask |= RQFCR_PID_VID_MASK;900 break;901 /* 16bit */902 case RQFCR_PID_DPT:903 case RQFCR_PID_SPT:904 case RQFCR_PID_ETY:905 if (!~(mask | RQFCR_PID_PORT_MASK))906 return;907 if (!mask)908 mask = ~0;909 else910 mask |= RQFCR_PID_PORT_MASK;911 break;912 /* 24bit */913 case RQFCR_PID_DAH:914 case RQFCR_PID_DAL:915 case RQFCR_PID_SAH:916 case RQFCR_PID_SAL:917 if (!(value | mask))918 return;919 mask |= RQFCR_PID_MAC_MASK;920 break;921 /* for all real 32bit masks */922 default:923 if (!~mask)924 return;925 if (!mask)926 mask = ~0;927 break;928 }929 gfar_set_general_attribute(value, mask, flag, tab);930}931 932/* Translates value and mask for UDP, TCP or SCTP */933static void gfar_set_basic_ip(struct ethtool_tcpip4_spec *value,934 struct ethtool_tcpip4_spec *mask,935 struct filer_table *tab)936{937 gfar_set_attribute(be32_to_cpu(value->ip4src),938 be32_to_cpu(mask->ip4src),939 RQFCR_PID_SIA, tab);940 gfar_set_attribute(be32_to_cpu(value->ip4dst),941 be32_to_cpu(mask->ip4dst),942 RQFCR_PID_DIA, tab);943 gfar_set_attribute(be16_to_cpu(value->pdst),944 be16_to_cpu(mask->pdst),945 RQFCR_PID_DPT, tab);946 gfar_set_attribute(be16_to_cpu(value->psrc),947 be16_to_cpu(mask->psrc),948 RQFCR_PID_SPT, tab);949 gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab);950}951 952/* Translates value and mask for RAW-IP4 */953static void gfar_set_user_ip(struct ethtool_usrip4_spec *value,954 struct ethtool_usrip4_spec *mask,955 struct filer_table *tab)956{957 gfar_set_attribute(be32_to_cpu(value->ip4src),958 be32_to_cpu(mask->ip4src),959 RQFCR_PID_SIA, tab);960 gfar_set_attribute(be32_to_cpu(value->ip4dst),961 be32_to_cpu(mask->ip4dst),962 RQFCR_PID_DIA, tab);963 gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab);964 gfar_set_attribute(value->proto, mask->proto, RQFCR_PID_L4P, tab);965 gfar_set_attribute(be32_to_cpu(value->l4_4_bytes),966 be32_to_cpu(mask->l4_4_bytes),967 RQFCR_PID_ARB, tab);968 969}970 971/* Translates value and mask for ETHER spec */972static void gfar_set_ether(struct ethhdr *value, struct ethhdr *mask,973 struct filer_table *tab)974{975 u32 upper_temp_mask = 0;976 u32 lower_temp_mask = 0;977 978 /* Source address */979 if (!is_broadcast_ether_addr(mask->h_source)) {980 if (is_zero_ether_addr(mask->h_source)) {981 upper_temp_mask = 0xFFFFFFFF;982 lower_temp_mask = 0xFFFFFFFF;983 } else {984 upper_temp_mask = mask->h_source[0] << 16 |985 mask->h_source[1] << 8 |986 mask->h_source[2];987 lower_temp_mask = mask->h_source[3] << 16 |988 mask->h_source[4] << 8 |989 mask->h_source[5];990 }991 /* Upper 24bit */992 gfar_set_attribute(value->h_source[0] << 16 |993 value->h_source[1] << 8 |994 value->h_source[2],995 upper_temp_mask, RQFCR_PID_SAH, tab);996 /* And the same for the lower part */997 gfar_set_attribute(value->h_source[3] << 16 |998 value->h_source[4] << 8 |999 value->h_source[5],1000 lower_temp_mask, RQFCR_PID_SAL, tab);1001 }1002 /* Destination address */1003 if (!is_broadcast_ether_addr(mask->h_dest)) {1004 /* Special for destination is limited broadcast */1005 if ((is_broadcast_ether_addr(value->h_dest) &&1006 is_zero_ether_addr(mask->h_dest))) {1007 gfar_set_parse_bits(RQFPR_EBC, RQFPR_EBC, tab);1008 } else {1009 if (is_zero_ether_addr(mask->h_dest)) {1010 upper_temp_mask = 0xFFFFFFFF;1011 lower_temp_mask = 0xFFFFFFFF;1012 } else {1013 upper_temp_mask = mask->h_dest[0] << 16 |1014 mask->h_dest[1] << 8 |1015 mask->h_dest[2];1016 lower_temp_mask = mask->h_dest[3] << 16 |1017 mask->h_dest[4] << 8 |1018 mask->h_dest[5];1019 }1020 1021 /* Upper 24bit */1022 gfar_set_attribute(value->h_dest[0] << 16 |1023 value->h_dest[1] << 8 |1024 value->h_dest[2],1025 upper_temp_mask, RQFCR_PID_DAH, tab);1026 /* And the same for the lower part */1027 gfar_set_attribute(value->h_dest[3] << 16 |1028 value->h_dest[4] << 8 |1029 value->h_dest[5],1030 lower_temp_mask, RQFCR_PID_DAL, tab);1031 }1032 }1033 1034 gfar_set_attribute(be16_to_cpu(value->h_proto),1035 be16_to_cpu(mask->h_proto),1036 RQFCR_PID_ETY, tab);1037}1038 1039static inline u32 vlan_tci_vid(struct ethtool_rx_flow_spec *rule)1040{1041 return be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_VID_MASK;1042}1043 1044static inline u32 vlan_tci_vidm(struct ethtool_rx_flow_spec *rule)1045{1046 return be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_VID_MASK;1047}1048 1049static inline u32 vlan_tci_cfi(struct ethtool_rx_flow_spec *rule)1050{1051 return be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_CFI_MASK;1052}1053 1054static inline u32 vlan_tci_cfim(struct ethtool_rx_flow_spec *rule)1055{1056 return be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_CFI_MASK;1057}1058 1059static inline u32 vlan_tci_prio(struct ethtool_rx_flow_spec *rule)1060{1061 return (be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_PRIO_MASK) >>1062 VLAN_PRIO_SHIFT;1063}1064 1065static inline u32 vlan_tci_priom(struct ethtool_rx_flow_spec *rule)1066{1067 return (be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_PRIO_MASK) >>1068 VLAN_PRIO_SHIFT;1069}1070 1071/* Convert a rule to binary filter format of gianfar */1072static int gfar_convert_to_filer(struct ethtool_rx_flow_spec *rule,1073 struct filer_table *tab)1074{1075 u32 vlan = 0, vlan_mask = 0;1076 u32 id = 0, id_mask = 0;1077 u32 cfi = 0, cfi_mask = 0;1078 u32 prio = 0, prio_mask = 0;1079 u32 old_index = tab->index;1080 1081 /* Check if vlan is wanted */1082 if ((rule->flow_type & FLOW_EXT) &&1083 (rule->m_ext.vlan_tci != cpu_to_be16(0xFFFF))) {1084 if (!rule->m_ext.vlan_tci)1085 rule->m_ext.vlan_tci = cpu_to_be16(0xFFFF);1086 1087 vlan = RQFPR_VLN;1088 vlan_mask = RQFPR_VLN;1089 1090 /* Separate the fields */1091 id = vlan_tci_vid(rule);1092 id_mask = vlan_tci_vidm(rule);1093 cfi = vlan_tci_cfi(rule);1094 cfi_mask = vlan_tci_cfim(rule);1095 prio = vlan_tci_prio(rule);1096 prio_mask = vlan_tci_priom(rule);1097 1098 if (cfi_mask) {1099 if (cfi)1100 vlan |= RQFPR_CFI;1101 vlan_mask |= RQFPR_CFI;1102 }1103 }1104 1105 switch (rule->flow_type & ~FLOW_EXT) {1106 case TCP_V4_FLOW:1107 gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_TCP | vlan,1108 RQFPR_IPV4 | RQFPR_TCP | vlan_mask, tab);1109 gfar_set_basic_ip(&rule->h_u.tcp_ip4_spec,1110 &rule->m_u.tcp_ip4_spec, tab);1111 break;1112 case UDP_V4_FLOW:1113 gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_UDP | vlan,1114 RQFPR_IPV4 | RQFPR_UDP | vlan_mask, tab);1115 gfar_set_basic_ip(&rule->h_u.udp_ip4_spec,1116 &rule->m_u.udp_ip4_spec, tab);1117 break;1118 case SCTP_V4_FLOW:1119 gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask,1120 tab);1121 gfar_set_attribute(132, 0, RQFCR_PID_L4P, tab);1122 gfar_set_basic_ip((struct ethtool_tcpip4_spec *)&rule->h_u,1123 (struct ethtool_tcpip4_spec *)&rule->m_u,1124 tab);1125 break;1126 case IP_USER_FLOW:1127 gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask,1128 tab);1129 gfar_set_user_ip((struct ethtool_usrip4_spec *) &rule->h_u,1130 (struct ethtool_usrip4_spec *) &rule->m_u,1131 tab);1132 break;1133 case ETHER_FLOW:1134 if (vlan)1135 gfar_set_parse_bits(vlan, vlan_mask, tab);1136 gfar_set_ether((struct ethhdr *) &rule->h_u,1137 (struct ethhdr *) &rule->m_u, tab);1138 break;1139 default:1140 return -1;1141 }1142 1143 /* Set the vlan attributes in the end */1144 if (vlan) {1145 gfar_set_attribute(id, id_mask, RQFCR_PID_VID, tab);1146 gfar_set_attribute(prio, prio_mask, RQFCR_PID_PRI, tab);1147 }1148 1149 /* If there has been nothing written till now, it must be a default */1150 if (tab->index == old_index) {1151 gfar_set_mask(0xFFFFFFFF, tab);1152 tab->fe[tab->index].ctrl = 0x20;1153 tab->fe[tab->index].prop = 0x0;1154 tab->index++;1155 }1156 1157 /* Remove last AND */1158 tab->fe[tab->index - 1].ctrl &= (~RQFCR_AND);1159 1160 /* Specify which queue to use or to drop */1161 if (rule->ring_cookie == RX_CLS_FLOW_DISC)1162 tab->fe[tab->index - 1].ctrl |= RQFCR_RJE;1163 else1164 tab->fe[tab->index - 1].ctrl |= (rule->ring_cookie << 10);1165 1166 /* Only big enough entries can be clustered */1167 if (tab->index > (old_index + 2)) {1168 tab->fe[old_index + 1].ctrl |= RQFCR_CLE;1169 tab->fe[tab->index - 1].ctrl |= RQFCR_CLE;1170 }1171 1172 /* In rare cases the cache can be full while there is1173 * free space in hw1174 */1175 if (tab->index > MAX_FILER_CACHE_IDX - 1)1176 return -EBUSY;1177 1178 return 0;1179}1180 1181/* Write the bit-pattern from software's buffer to hardware registers */1182static int gfar_write_filer_table(struct gfar_private *priv,1183 struct filer_table *tab)1184{1185 u32 i = 0;1186 if (tab->index > MAX_FILER_IDX - 1)1187 return -EBUSY;1188 1189 /* Fill regular entries */1190 for (; i < MAX_FILER_IDX && (tab->fe[i].ctrl | tab->fe[i].prop); i++)1191 gfar_write_filer(priv, i, tab->fe[i].ctrl, tab->fe[i].prop);1192 /* Fill the rest with fall-troughs */1193 for (; i < MAX_FILER_IDX; i++)1194 gfar_write_filer(priv, i, 0x60, 0xFFFFFFFF);1195 /* Last entry must be default accept1196 * because that's what people expect1197 */1198 gfar_write_filer(priv, i, 0x20, 0x0);1199 1200 return 0;1201}1202 1203static int gfar_check_capability(struct ethtool_rx_flow_spec *flow,1204 struct gfar_private *priv)1205{1206 1207 if (flow->flow_type & FLOW_EXT) {1208 if (~flow->m_ext.data[0] || ~flow->m_ext.data[1])1209 netdev_warn(priv->ndev,1210 "User-specific data not supported!\n");1211 if (~flow->m_ext.vlan_etype)1212 netdev_warn(priv->ndev,1213 "VLAN-etype not supported!\n");1214 }1215 if (flow->flow_type == IP_USER_FLOW)1216 if (flow->h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4)1217 netdev_warn(priv->ndev,1218 "IP-Version differing from IPv4 not supported!\n");1219 1220 return 0;1221}1222 1223static int gfar_process_filer_changes(struct gfar_private *priv)1224{1225 struct ethtool_flow_spec_container *j;1226 struct filer_table *tab;1227 s32 ret = 0;1228 1229 /* So index is set to zero, too! */1230 tab = kzalloc(sizeof(*tab), GFP_KERNEL);1231 if (tab == NULL)1232 return -ENOMEM;1233 1234 /* Now convert the existing filer data from flow_spec into1235 * filer tables binary format1236 */1237 list_for_each_entry(j, &priv->rx_list.list, list) {1238 ret = gfar_convert_to_filer(&j->fs, tab);1239 if (ret == -EBUSY) {1240 netdev_err(priv->ndev,1241 "Rule not added: No free space!\n");1242 goto end;1243 }1244 if (ret == -1) {1245 netdev_err(priv->ndev,1246 "Rule not added: Unsupported Flow-type!\n");1247 goto end;1248 }1249 }1250 1251 /* Write everything to hardware */1252 ret = gfar_write_filer_table(priv, tab);1253 if (ret == -EBUSY) {1254 netdev_err(priv->ndev, "Rule not added: No free space!\n");1255 goto end;1256 }1257 1258end:1259 kfree(tab);1260 return ret;1261}1262 1263static void gfar_invert_masks(struct ethtool_rx_flow_spec *flow)1264{1265 u32 i = 0;1266 1267 for (i = 0; i < sizeof(flow->m_u); i++)1268 flow->m_u.hdata[i] ^= 0xFF;1269 1270 flow->m_ext.vlan_etype ^= cpu_to_be16(0xFFFF);1271 flow->m_ext.vlan_tci ^= cpu_to_be16(0xFFFF);1272 flow->m_ext.data[0] ^= cpu_to_be32(~0);1273 flow->m_ext.data[1] ^= cpu_to_be32(~0);1274}1275 1276static int gfar_add_cls(struct gfar_private *priv,1277 struct ethtool_rx_flow_spec *flow)1278{1279 struct ethtool_flow_spec_container *temp, *comp;1280 int ret = 0;1281 1282 temp = kmalloc(sizeof(*temp), GFP_KERNEL);1283 if (temp == NULL)1284 return -ENOMEM;1285 memcpy(&temp->fs, flow, sizeof(temp->fs));1286 1287 gfar_invert_masks(&temp->fs);1288 ret = gfar_check_capability(&temp->fs, priv);1289 if (ret)1290 goto clean_mem;1291 /* Link in the new element at the right @location */1292 if (list_empty(&priv->rx_list.list)) {1293 ret = gfar_check_filer_hardware(priv);1294 if (ret != 0)1295 goto clean_mem;1296 list_add(&temp->list, &priv->rx_list.list);1297 goto process;1298 } else {1299 list_for_each_entry(comp, &priv->rx_list.list, list) {1300 if (comp->fs.location > flow->location) {1301 list_add_tail(&temp->list, &comp->list);1302 goto process;1303 }1304 if (comp->fs.location == flow->location) {1305 netdev_err(priv->ndev,1306 "Rule not added: ID %d not free!\n",1307 flow->location);1308 ret = -EBUSY;1309 goto clean_mem;1310 }1311 }1312 list_add_tail(&temp->list, &priv->rx_list.list);1313 }1314 1315process:1316 priv->rx_list.count++;1317 ret = gfar_process_filer_changes(priv);1318 if (ret)1319 goto clean_list;1320 return ret;1321 1322clean_list:1323 priv->rx_list.count--;1324 list_del(&temp->list);1325clean_mem:1326 kfree(temp);1327 return ret;1328}1329 1330static int gfar_del_cls(struct gfar_private *priv, u32 loc)1331{1332 struct ethtool_flow_spec_container *comp;1333 u32 ret = -EINVAL;1334 1335 if (list_empty(&priv->rx_list.list))1336 return ret;1337 1338 list_for_each_entry(comp, &priv->rx_list.list, list) {1339 if (comp->fs.location == loc) {1340 list_del(&comp->list);1341 kfree(comp);1342 priv->rx_list.count--;1343 gfar_process_filer_changes(priv);1344 ret = 0;1345 break;1346 }1347 }1348 1349 return ret;1350}1351 1352static int gfar_get_cls(struct gfar_private *priv, struct ethtool_rxnfc *cmd)1353{1354 struct ethtool_flow_spec_container *comp;1355 u32 ret = -EINVAL;1356 1357 list_for_each_entry(comp, &priv->rx_list.list, list) {1358 if (comp->fs.location == cmd->fs.location) {1359 memcpy(&cmd->fs, &comp->fs, sizeof(cmd->fs));1360 gfar_invert_masks(&cmd->fs);1361 ret = 0;1362 break;1363 }1364 }1365 1366 return ret;1367}1368 1369static int gfar_get_cls_all(struct gfar_private *priv,1370 struct ethtool_rxnfc *cmd, u32 *rule_locs)1371{1372 struct ethtool_flow_spec_container *comp;1373 u32 i = 0;1374 1375 list_for_each_entry(comp, &priv->rx_list.list, list) {1376 if (i == cmd->rule_cnt)1377 return -EMSGSIZE;1378 rule_locs[i] = comp->fs.location;1379 i++;1380 }1381 1382 cmd->data = MAX_FILER_IDX;1383 cmd->rule_cnt = i;1384 1385 return 0;1386}1387 1388static int gfar_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd)1389{1390 struct gfar_private *priv = netdev_priv(dev);1391 int ret = 0;1392 1393 if (test_bit(GFAR_RESETTING, &priv->state))1394 return -EBUSY;1395 1396 mutex_lock(&priv->rx_queue_access);1397 1398 switch (cmd->cmd) {1399 case ETHTOOL_SRXFH:1400 ret = gfar_set_hash_opts(priv, cmd);1401 break;1402 case ETHTOOL_SRXCLSRLINS:1403 if ((cmd->fs.ring_cookie != RX_CLS_FLOW_DISC &&1404 cmd->fs.ring_cookie >= priv->num_rx_queues) ||1405 cmd->fs.location >= MAX_FILER_IDX) {1406 ret = -EINVAL;1407 break;1408 }1409 ret = gfar_add_cls(priv, &cmd->fs);1410 break;1411 case ETHTOOL_SRXCLSRLDEL:1412 ret = gfar_del_cls(priv, cmd->fs.location);1413 break;1414 default:1415 ret = -EINVAL;1416 }1417 1418 mutex_unlock(&priv->rx_queue_access);1419 1420 return ret;1421}1422 1423static int gfar_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd,1424 u32 *rule_locs)1425{1426 struct gfar_private *priv = netdev_priv(dev);1427 int ret = 0;1428 1429 switch (cmd->cmd) {1430 case ETHTOOL_GRXRINGS:1431 cmd->data = priv->num_rx_queues;1432 break;1433 case ETHTOOL_GRXCLSRLCNT:1434 cmd->rule_cnt = priv->rx_list.count;1435 break;1436 case ETHTOOL_GRXCLSRULE:1437 ret = gfar_get_cls(priv, cmd);1438 break;1439 case ETHTOOL_GRXCLSRLALL:1440 ret = gfar_get_cls_all(priv, cmd, rule_locs);1441 break;1442 default:1443 ret = -EINVAL;1444 break;1445 }1446 1447 return ret;1448}1449 1450static int gfar_get_ts_info(struct net_device *dev,1451 struct kernel_ethtool_ts_info *info)1452{1453 struct gfar_private *priv = netdev_priv(dev);1454 struct platform_device *ptp_dev;1455 struct device_node *ptp_node;1456 struct ptp_qoriq *ptp = NULL;1457 1458 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER)) {1459 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE;1460 return 0;1461 }1462 1463 ptp_node = of_find_compatible_node(NULL, NULL, "fsl,etsec-ptp");1464 if (ptp_node) {1465 ptp_dev = of_find_device_by_node(ptp_node);1466 of_node_put(ptp_node);1467 if (ptp_dev)1468 ptp = platform_get_drvdata(ptp_dev);1469 }1470 1471 if (ptp)1472 info->phc_index = ptp->phc_index;1473 1474 info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |1475 SOF_TIMESTAMPING_RX_HARDWARE |1476 SOF_TIMESTAMPING_RAW_HARDWARE |1477 SOF_TIMESTAMPING_TX_SOFTWARE;1478 info->tx_types = (1 << HWTSTAMP_TX_OFF) |1479 (1 << HWTSTAMP_TX_ON);1480 info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |1481 (1 << HWTSTAMP_FILTER_ALL);1482 return 0;1483}1484 1485const struct ethtool_ops gfar_ethtool_ops = {1486 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |1487 ETHTOOL_COALESCE_MAX_FRAMES,1488 .get_drvinfo = gfar_gdrvinfo,1489 .get_regs_len = gfar_reglen,1490 .get_regs = gfar_get_regs,1491 .get_link = ethtool_op_get_link,1492 .get_coalesce = gfar_gcoalesce,1493 .set_coalesce = gfar_scoalesce,1494 .get_ringparam = gfar_gringparam,1495 .set_ringparam = gfar_sringparam,1496 .get_pauseparam = gfar_gpauseparam,1497 .set_pauseparam = gfar_spauseparam,1498 .get_strings = gfar_gstrings,1499 .get_sset_count = gfar_sset_count,1500 .get_ethtool_stats = gfar_fill_stats,1501 .get_msglevel = gfar_get_msglevel,1502 .set_msglevel = gfar_set_msglevel,1503#ifdef CONFIG_PM1504 .get_wol = gfar_get_wol,1505 .set_wol = gfar_set_wol,1506#endif1507 .set_rxnfc = gfar_set_nfc,1508 .get_rxnfc = gfar_get_nfc,1509 .get_ts_info = gfar_get_ts_info,1510 .get_link_ksettings = phy_ethtool_get_link_ksettings,1511 .set_link_ksettings = phy_ethtool_set_link_ksettings,1512};1513