1 /*
2  * AMD 10Gb Ethernet driver
3  *
4  * This file is available to you under your choice of the following two
5  * licenses:
6  *
7  * License 1: GPLv2
8  *
9  * Copyright (c) 2014-2016 Advanced Micro Devices, Inc.
10  *
11  * This file is free software; you may copy, redistribute and/or modify
12  * it under the terms of the GNU General Public License as published by
13  * the Free Software Foundation, either version 2 of the License, or (at
14  * your option) any later version.
15  *
16  * This file is distributed in the hope that it will be useful, but
17  * WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19  * General Public License for more details.
20  *
21  * You should have received a copy of the GNU General Public License
22  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
23  *
24  * This file incorporates work covered by the following copyright and
25  * permission notice:
26  *     The Synopsys DWC ETHER XGMAC Software Driver and documentation
27  *     (hereinafter "Software") is an unsupported proprietary work of Synopsys,
28  *     Inc. unless otherwise expressly agreed to in writing between Synopsys
29  *     and you.
30  *
31  *     The Software IS NOT an item of Licensed Software or Licensed Product
32  *     under any End User Software License Agreement or Agreement for Licensed
33  *     Product with Synopsys or any supplement thereto.  Permission is hereby
34  *     granted, free of charge, to any person obtaining a copy of this software
35  *     annotated with this license and the Software, to deal in the Software
36  *     without restriction, including without limitation the rights to use,
37  *     copy, modify, merge, publish, distribute, sublicense, and/or sell copies
38  *     of the Software, and to permit persons to whom the Software is furnished
39  *     to do so, subject to the following conditions:
40  *
41  *     The above copyright notice and this permission notice shall be included
42  *     in all copies or substantial portions of the Software.
43  *
44  *     THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
45  *     BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
46  *     TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
47  *     PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS
48  *     BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
49  *     CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
50  *     SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
51  *     INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
52  *     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
53  *     ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
54  *     THE POSSIBILITY OF SUCH DAMAGE.
55  *
56  *
57  * License 2: Modified BSD
58  *
59  * Copyright (c) 2014-2016 Advanced Micro Devices, Inc.
60  * All rights reserved.
61  *
62  * Redistribution and use in source and binary forms, with or without
63  * modification, are permitted provided that the following conditions are met:
64  *     * Redistributions of source code must retain the above copyright
65  *       notice, this list of conditions and the following disclaimer.
66  *     * Redistributions in binary form must reproduce the above copyright
67  *       notice, this list of conditions and the following disclaimer in the
68  *       documentation and/or other materials provided with the distribution.
69  *     * Neither the name of Advanced Micro Devices, Inc. nor the
70  *       names of its contributors may be used to endorse or promote products
71  *       derived from this software without specific prior written permission.
72  *
73  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
74  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
75  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
76  * ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
77  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
78  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
79  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
80  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
81  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
82  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
83  *
84  * This file incorporates work covered by the following copyright and
85  * permission notice:
86  *     The Synopsys DWC ETHER XGMAC Software Driver and documentation
87  *     (hereinafter "Software") is an unsupported proprietary work of Synopsys,
88  *     Inc. unless otherwise expressly agreed to in writing between Synopsys
89  *     and you.
90  *
91  *     The Software IS NOT an item of Licensed Software or Licensed Product
92  *     under any End User Software License Agreement or Agreement for Licensed
93  *     Product with Synopsys or any supplement thereto.  Permission is hereby
94  *     granted, free of charge, to any person obtaining a copy of this software
95  *     annotated with this license and the Software, to deal in the Software
96  *     without restriction, including without limitation the rights to use,
97  *     copy, modify, merge, publish, distribute, sublicense, and/or sell copies
98  *     of the Software, and to permit persons to whom the Software is furnished
99  *     to do so, subject to the following conditions:
100  *
101  *     The above copyright notice and this permission notice shall be included
102  *     in all copies or substantial portions of the Software.
103  *
104  *     THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
105  *     BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
106  *     TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
107  *     PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS
108  *     BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
109  *     CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
110  *     SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
111  *     INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
112  *     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
113  *     ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
114  *     THE POSSIBILITY OF SUCH DAMAGE.
115  */
116 
117 #include <linux/spinlock.h>
118 #include <linux/phy.h>
119 #include <linux/net_tstamp.h>
120 
121 #include "xgbe.h"
122 #include "xgbe-common.h"
123 
124 struct xgbe_stats {
125 	char stat_string[ETH_GSTRING_LEN];
126 	int stat_size;
127 	int stat_offset;
128 };
129 
130 #define XGMAC_MMC_STAT(_string, _var)				\
131 	{ _string,						\
132 	  FIELD_SIZEOF(struct xgbe_mmc_stats, _var),		\
133 	  offsetof(struct xgbe_prv_data, mmc_stats._var),	\
134 	}
135 
136 #define XGMAC_EXT_STAT(_string, _var)				\
137 	{ _string,						\
138 	  FIELD_SIZEOF(struct xgbe_ext_stats, _var),		\
139 	  offsetof(struct xgbe_prv_data, ext_stats._var),	\
140 	}
141 
142 static const struct xgbe_stats xgbe_gstring_stats[] = {
143 	XGMAC_MMC_STAT("tx_bytes", txoctetcount_gb),
144 	XGMAC_MMC_STAT("tx_packets", txframecount_gb),
145 	XGMAC_MMC_STAT("tx_unicast_packets", txunicastframes_gb),
146 	XGMAC_MMC_STAT("tx_broadcast_packets", txbroadcastframes_gb),
147 	XGMAC_MMC_STAT("tx_multicast_packets", txmulticastframes_gb),
148 	XGMAC_MMC_STAT("tx_vlan_packets", txvlanframes_g),
149 	XGMAC_EXT_STAT("tx_tso_packets", tx_tso_packets),
150 	XGMAC_MMC_STAT("tx_64_byte_packets", tx64octets_gb),
151 	XGMAC_MMC_STAT("tx_65_to_127_byte_packets", tx65to127octets_gb),
152 	XGMAC_MMC_STAT("tx_128_to_255_byte_packets", tx128to255octets_gb),
153 	XGMAC_MMC_STAT("tx_256_to_511_byte_packets", tx256to511octets_gb),
154 	XGMAC_MMC_STAT("tx_512_to_1023_byte_packets", tx512to1023octets_gb),
155 	XGMAC_MMC_STAT("tx_1024_to_max_byte_packets", tx1024tomaxoctets_gb),
156 	XGMAC_MMC_STAT("tx_underflow_errors", txunderflowerror),
157 	XGMAC_MMC_STAT("tx_pause_frames", txpauseframes),
158 
159 	XGMAC_MMC_STAT("rx_bytes", rxoctetcount_gb),
160 	XGMAC_MMC_STAT("rx_packets", rxframecount_gb),
161 	XGMAC_MMC_STAT("rx_unicast_packets", rxunicastframes_g),
162 	XGMAC_MMC_STAT("rx_broadcast_packets", rxbroadcastframes_g),
163 	XGMAC_MMC_STAT("rx_multicast_packets", rxmulticastframes_g),
164 	XGMAC_MMC_STAT("rx_vlan_packets", rxvlanframes_gb),
165 	XGMAC_MMC_STAT("rx_64_byte_packets", rx64octets_gb),
166 	XGMAC_MMC_STAT("rx_65_to_127_byte_packets", rx65to127octets_gb),
167 	XGMAC_MMC_STAT("rx_128_to_255_byte_packets", rx128to255octets_gb),
168 	XGMAC_MMC_STAT("rx_256_to_511_byte_packets", rx256to511octets_gb),
169 	XGMAC_MMC_STAT("rx_512_to_1023_byte_packets", rx512to1023octets_gb),
170 	XGMAC_MMC_STAT("rx_1024_to_max_byte_packets", rx1024tomaxoctets_gb),
171 	XGMAC_MMC_STAT("rx_undersize_packets", rxundersize_g),
172 	XGMAC_MMC_STAT("rx_oversize_packets", rxoversize_g),
173 	XGMAC_MMC_STAT("rx_crc_errors", rxcrcerror),
174 	XGMAC_MMC_STAT("rx_crc_errors_small_packets", rxrunterror),
175 	XGMAC_MMC_STAT("rx_crc_errors_giant_packets", rxjabbererror),
176 	XGMAC_MMC_STAT("rx_length_errors", rxlengtherror),
177 	XGMAC_MMC_STAT("rx_out_of_range_errors", rxoutofrangetype),
178 	XGMAC_MMC_STAT("rx_fifo_overflow_errors", rxfifooverflow),
179 	XGMAC_MMC_STAT("rx_watchdog_errors", rxwatchdogerror),
180 	XGMAC_MMC_STAT("rx_pause_frames", rxpauseframes),
181 	XGMAC_EXT_STAT("rx_split_header_packets", rx_split_header_packets),
182 	XGMAC_EXT_STAT("rx_buffer_unavailable", rx_buffer_unavailable),
183 };
184 
185 #define XGBE_STATS_COUNT	ARRAY_SIZE(xgbe_gstring_stats)
186 
187 static void xgbe_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
188 {
189 	int i;
190 
191 	switch (stringset) {
192 	case ETH_SS_STATS:
193 		for (i = 0; i < XGBE_STATS_COUNT; i++) {
194 			memcpy(data, xgbe_gstring_stats[i].stat_string,
195 			       ETH_GSTRING_LEN);
196 			data += ETH_GSTRING_LEN;
197 		}
198 		break;
199 	}
200 }
201 
202 static void xgbe_get_ethtool_stats(struct net_device *netdev,
203 				   struct ethtool_stats *stats, u64 *data)
204 {
205 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
206 	u8 *stat;
207 	int i;
208 
209 	pdata->hw_if.read_mmc_stats(pdata);
210 	for (i = 0; i < XGBE_STATS_COUNT; i++) {
211 		stat = (u8 *)pdata + xgbe_gstring_stats[i].stat_offset;
212 		*data++ = *(u64 *)stat;
213 	}
214 }
215 
216 static int xgbe_get_sset_count(struct net_device *netdev, int stringset)
217 {
218 	int ret;
219 
220 	switch (stringset) {
221 	case ETH_SS_STATS:
222 		ret = XGBE_STATS_COUNT;
223 		break;
224 
225 	default:
226 		ret = -EOPNOTSUPP;
227 	}
228 
229 	return ret;
230 }
231 
232 static void xgbe_get_pauseparam(struct net_device *netdev,
233 				struct ethtool_pauseparam *pause)
234 {
235 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
236 
237 	pause->autoneg = pdata->phy.pause_autoneg;
238 	pause->tx_pause = pdata->phy.tx_pause;
239 	pause->rx_pause = pdata->phy.rx_pause;
240 }
241 
242 static int xgbe_set_pauseparam(struct net_device *netdev,
243 			       struct ethtool_pauseparam *pause)
244 {
245 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
246 	int ret = 0;
247 
248 	if (pause->autoneg && (pdata->phy.autoneg != AUTONEG_ENABLE)) {
249 		netdev_err(netdev,
250 			   "autoneg disabled, pause autoneg not available\n");
251 		return -EINVAL;
252 	}
253 
254 	pdata->phy.pause_autoneg = pause->autoneg;
255 	pdata->phy.tx_pause = pause->tx_pause;
256 	pdata->phy.rx_pause = pause->rx_pause;
257 
258 	pdata->phy.advertising &= ~ADVERTISED_Pause;
259 	pdata->phy.advertising &= ~ADVERTISED_Asym_Pause;
260 
261 	if (pause->rx_pause) {
262 		pdata->phy.advertising |= ADVERTISED_Pause;
263 		pdata->phy.advertising |= ADVERTISED_Asym_Pause;
264 	}
265 
266 	if (pause->tx_pause)
267 		pdata->phy.advertising ^= ADVERTISED_Asym_Pause;
268 
269 	if (netif_running(netdev))
270 		ret = pdata->phy_if.phy_config_aneg(pdata);
271 
272 	return ret;
273 }
274 
275 static int xgbe_get_link_ksettings(struct net_device *netdev,
276 				   struct ethtool_link_ksettings *cmd)
277 {
278 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
279 
280 	cmd->base.phy_address = pdata->phy.address;
281 
282 	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
283 						pdata->phy.supported);
284 	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
285 						pdata->phy.advertising);
286 	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.lp_advertising,
287 						pdata->phy.lp_advertising);
288 
289 	cmd->base.autoneg = pdata->phy.autoneg;
290 	cmd->base.speed = pdata->phy.speed;
291 	cmd->base.duplex = pdata->phy.duplex;
292 
293 	cmd->base.port = PORT_NONE;
294 
295 	return 0;
296 }
297 
298 static int xgbe_set_link_ksettings(struct net_device *netdev,
299 				   const struct ethtool_link_ksettings *cmd)
300 {
301 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
302 	u32 advertising;
303 	u32 speed;
304 	int ret;
305 
306 	speed = cmd->base.speed;
307 
308 	if (cmd->base.phy_address != pdata->phy.address) {
309 		netdev_err(netdev, "invalid phy address %hhu\n",
310 			   cmd->base.phy_address);
311 		return -EINVAL;
312 	}
313 
314 	if ((cmd->base.autoneg != AUTONEG_ENABLE) &&
315 	    (cmd->base.autoneg != AUTONEG_DISABLE)) {
316 		netdev_err(netdev, "unsupported autoneg %hhu\n",
317 			   cmd->base.autoneg);
318 		return -EINVAL;
319 	}
320 
321 	if (cmd->base.autoneg == AUTONEG_DISABLE) {
322 		if (!pdata->phy_if.phy_valid_speed(pdata, speed)) {
323 			netdev_err(netdev, "unsupported speed %u\n", speed);
324 			return -EINVAL;
325 		}
326 
327 		if (cmd->base.duplex != DUPLEX_FULL) {
328 			netdev_err(netdev, "unsupported duplex %hhu\n",
329 				   cmd->base.duplex);
330 			return -EINVAL;
331 		}
332 	}
333 
334 	ethtool_convert_link_mode_to_legacy_u32(&advertising,
335 						cmd->link_modes.advertising);
336 
337 	netif_dbg(pdata, link, netdev,
338 		  "requested advertisement %#x, phy supported %#x\n",
339 		  advertising, pdata->phy.supported);
340 
341 	advertising &= pdata->phy.supported;
342 	if ((cmd->base.autoneg == AUTONEG_ENABLE) && !advertising) {
343 		netdev_err(netdev,
344 			   "unsupported requested advertisement\n");
345 		return -EINVAL;
346 	}
347 
348 	ret = 0;
349 	pdata->phy.autoneg = cmd->base.autoneg;
350 	pdata->phy.speed = speed;
351 	pdata->phy.duplex = cmd->base.duplex;
352 	pdata->phy.advertising = advertising;
353 
354 	if (cmd->base.autoneg == AUTONEG_ENABLE)
355 		pdata->phy.advertising |= ADVERTISED_Autoneg;
356 	else
357 		pdata->phy.advertising &= ~ADVERTISED_Autoneg;
358 
359 	if (netif_running(netdev))
360 		ret = pdata->phy_if.phy_config_aneg(pdata);
361 
362 	return ret;
363 }
364 
365 static void xgbe_get_drvinfo(struct net_device *netdev,
366 			     struct ethtool_drvinfo *drvinfo)
367 {
368 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
369 	struct xgbe_hw_features *hw_feat = &pdata->hw_feat;
370 
371 	strlcpy(drvinfo->driver, XGBE_DRV_NAME, sizeof(drvinfo->driver));
372 	strlcpy(drvinfo->version, XGBE_DRV_VERSION, sizeof(drvinfo->version));
373 	strlcpy(drvinfo->bus_info, dev_name(pdata->dev),
374 		sizeof(drvinfo->bus_info));
375 	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), "%d.%d.%d",
376 		 XGMAC_GET_BITS(hw_feat->version, MAC_VR, USERVER),
377 		 XGMAC_GET_BITS(hw_feat->version, MAC_VR, DEVID),
378 		 XGMAC_GET_BITS(hw_feat->version, MAC_VR, SNPSVER));
379 }
380 
381 static u32 xgbe_get_msglevel(struct net_device *netdev)
382 {
383 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
384 
385 	return pdata->msg_enable;
386 }
387 
388 static void xgbe_set_msglevel(struct net_device *netdev, u32 msglevel)
389 {
390 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
391 
392 	pdata->msg_enable = msglevel;
393 }
394 
395 static int xgbe_get_coalesce(struct net_device *netdev,
396 			     struct ethtool_coalesce *ec)
397 {
398 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
399 
400 	memset(ec, 0, sizeof(struct ethtool_coalesce));
401 
402 	ec->rx_coalesce_usecs = pdata->rx_usecs;
403 	ec->rx_max_coalesced_frames = pdata->rx_frames;
404 
405 	ec->tx_max_coalesced_frames = pdata->tx_frames;
406 
407 	return 0;
408 }
409 
410 static int xgbe_set_coalesce(struct net_device *netdev,
411 			     struct ethtool_coalesce *ec)
412 {
413 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
414 	struct xgbe_hw_if *hw_if = &pdata->hw_if;
415 	unsigned int rx_frames, rx_riwt, rx_usecs;
416 	unsigned int tx_frames;
417 
418 	/* Check for not supported parameters  */
419 	if ((ec->rx_coalesce_usecs_irq) ||
420 	    (ec->rx_max_coalesced_frames_irq) ||
421 	    (ec->tx_coalesce_usecs) ||
422 	    (ec->tx_coalesce_usecs_irq) ||
423 	    (ec->tx_max_coalesced_frames_irq) ||
424 	    (ec->stats_block_coalesce_usecs) ||
425 	    (ec->use_adaptive_rx_coalesce) ||
426 	    (ec->use_adaptive_tx_coalesce) ||
427 	    (ec->pkt_rate_low) ||
428 	    (ec->rx_coalesce_usecs_low) ||
429 	    (ec->rx_max_coalesced_frames_low) ||
430 	    (ec->tx_coalesce_usecs_low) ||
431 	    (ec->tx_max_coalesced_frames_low) ||
432 	    (ec->pkt_rate_high) ||
433 	    (ec->rx_coalesce_usecs_high) ||
434 	    (ec->rx_max_coalesced_frames_high) ||
435 	    (ec->tx_coalesce_usecs_high) ||
436 	    (ec->tx_max_coalesced_frames_high) ||
437 	    (ec->rate_sample_interval)) {
438 		netdev_err(netdev, "unsupported coalescing parameter\n");
439 		return -EOPNOTSUPP;
440 	}
441 
442 	rx_riwt = hw_if->usec_to_riwt(pdata, ec->rx_coalesce_usecs);
443 	rx_usecs = ec->rx_coalesce_usecs;
444 	rx_frames = ec->rx_max_coalesced_frames;
445 
446 	/* Use smallest possible value if conversion resulted in zero */
447 	if (rx_usecs && !rx_riwt)
448 		rx_riwt = 1;
449 
450 	/* Check the bounds of values for Rx */
451 	if (rx_riwt > XGMAC_MAX_DMA_RIWT) {
452 		netdev_err(netdev, "rx-usec is limited to %d usecs\n",
453 			   hw_if->riwt_to_usec(pdata, XGMAC_MAX_DMA_RIWT));
454 		return -EINVAL;
455 	}
456 	if (rx_frames > pdata->rx_desc_count) {
457 		netdev_err(netdev, "rx-frames is limited to %d frames\n",
458 			   pdata->rx_desc_count);
459 		return -EINVAL;
460 	}
461 
462 	tx_frames = ec->tx_max_coalesced_frames;
463 
464 	/* Check the bounds of values for Tx */
465 	if (tx_frames > pdata->tx_desc_count) {
466 		netdev_err(netdev, "tx-frames is limited to %d frames\n",
467 			   pdata->tx_desc_count);
468 		return -EINVAL;
469 	}
470 
471 	pdata->rx_riwt = rx_riwt;
472 	pdata->rx_usecs = rx_usecs;
473 	pdata->rx_frames = rx_frames;
474 	hw_if->config_rx_coalesce(pdata);
475 
476 	pdata->tx_frames = tx_frames;
477 	hw_if->config_tx_coalesce(pdata);
478 
479 	return 0;
480 }
481 
482 static int xgbe_get_rxnfc(struct net_device *netdev,
483 			  struct ethtool_rxnfc *rxnfc, u32 *rule_locs)
484 {
485 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
486 
487 	switch (rxnfc->cmd) {
488 	case ETHTOOL_GRXRINGS:
489 		rxnfc->data = pdata->rx_ring_count;
490 		break;
491 	default:
492 		return -EOPNOTSUPP;
493 	}
494 
495 	return 0;
496 }
497 
498 static u32 xgbe_get_rxfh_key_size(struct net_device *netdev)
499 {
500 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
501 
502 	return sizeof(pdata->rss_key);
503 }
504 
505 static u32 xgbe_get_rxfh_indir_size(struct net_device *netdev)
506 {
507 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
508 
509 	return ARRAY_SIZE(pdata->rss_table);
510 }
511 
512 static int xgbe_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
513 			 u8 *hfunc)
514 {
515 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
516 	unsigned int i;
517 
518 	if (indir) {
519 		for (i = 0; i < ARRAY_SIZE(pdata->rss_table); i++)
520 			indir[i] = XGMAC_GET_BITS(pdata->rss_table[i],
521 						  MAC_RSSDR, DMCH);
522 	}
523 
524 	if (key)
525 		memcpy(key, pdata->rss_key, sizeof(pdata->rss_key));
526 
527 	if (hfunc)
528 		*hfunc = ETH_RSS_HASH_TOP;
529 
530 	return 0;
531 }
532 
533 static int xgbe_set_rxfh(struct net_device *netdev, const u32 *indir,
534 			 const u8 *key, const u8 hfunc)
535 {
536 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
537 	struct xgbe_hw_if *hw_if = &pdata->hw_if;
538 	unsigned int ret;
539 
540 	if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) {
541 		netdev_err(netdev, "unsupported hash function\n");
542 		return -EOPNOTSUPP;
543 	}
544 
545 	if (indir) {
546 		ret = hw_if->set_rss_lookup_table(pdata, indir);
547 		if (ret)
548 			return ret;
549 	}
550 
551 	if (key) {
552 		ret = hw_if->set_rss_hash_key(pdata, key);
553 		if (ret)
554 			return ret;
555 	}
556 
557 	return 0;
558 }
559 
560 static int xgbe_get_ts_info(struct net_device *netdev,
561 			    struct ethtool_ts_info *ts_info)
562 {
563 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
564 
565 	ts_info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
566 				   SOF_TIMESTAMPING_RX_SOFTWARE |
567 				   SOF_TIMESTAMPING_SOFTWARE |
568 				   SOF_TIMESTAMPING_TX_HARDWARE |
569 				   SOF_TIMESTAMPING_RX_HARDWARE |
570 				   SOF_TIMESTAMPING_RAW_HARDWARE;
571 
572 	if (pdata->ptp_clock)
573 		ts_info->phc_index = ptp_clock_index(pdata->ptp_clock);
574 	else
575 		ts_info->phc_index = -1;
576 
577 	ts_info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
578 	ts_info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
579 			      (1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
580 			      (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
581 			      (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
582 			      (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
583 			      (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
584 			      (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) |
585 			      (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) |
586 			      (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) |
587 			      (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
588 			      (1 << HWTSTAMP_FILTER_ALL);
589 
590 	return 0;
591 }
592 
593 static const struct ethtool_ops xgbe_ethtool_ops = {
594 	.get_drvinfo = xgbe_get_drvinfo,
595 	.get_msglevel = xgbe_get_msglevel,
596 	.set_msglevel = xgbe_set_msglevel,
597 	.get_link = ethtool_op_get_link,
598 	.get_coalesce = xgbe_get_coalesce,
599 	.set_coalesce = xgbe_set_coalesce,
600 	.get_pauseparam = xgbe_get_pauseparam,
601 	.set_pauseparam = xgbe_set_pauseparam,
602 	.get_strings = xgbe_get_strings,
603 	.get_ethtool_stats = xgbe_get_ethtool_stats,
604 	.get_sset_count = xgbe_get_sset_count,
605 	.get_rxnfc = xgbe_get_rxnfc,
606 	.get_rxfh_key_size = xgbe_get_rxfh_key_size,
607 	.get_rxfh_indir_size = xgbe_get_rxfh_indir_size,
608 	.get_rxfh = xgbe_get_rxfh,
609 	.set_rxfh = xgbe_set_rxfh,
610 	.get_ts_info = xgbe_get_ts_info,
611 	.get_link_ksettings = xgbe_get_link_ksettings,
612 	.set_link_ksettings = xgbe_set_link_ksettings,
613 };
614 
615 const struct ethtool_ops *xgbe_get_ethtool_ops(void)
616 {
617 	return &xgbe_ethtool_ops;
618 }
619