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 avialable\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_settings(struct net_device *netdev,
276 			     struct ethtool_cmd *cmd)
277 {
278 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
279 
280 	cmd->phy_address = pdata->phy.address;
281 
282 	cmd->supported = pdata->phy.supported;
283 	cmd->advertising = pdata->phy.advertising;
284 	cmd->lp_advertising = pdata->phy.lp_advertising;
285 
286 	cmd->autoneg = pdata->phy.autoneg;
287 	ethtool_cmd_speed_set(cmd, pdata->phy.speed);
288 	cmd->duplex = pdata->phy.duplex;
289 
290 	cmd->port = PORT_NONE;
291 	cmd->transceiver = XCVR_INTERNAL;
292 
293 	return 0;
294 }
295 
296 static int xgbe_set_settings(struct net_device *netdev,
297 			     struct ethtool_cmd *cmd)
298 {
299 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
300 	u32 speed;
301 	int ret;
302 
303 	speed = ethtool_cmd_speed(cmd);
304 
305 	if (cmd->phy_address != pdata->phy.address) {
306 		netdev_err(netdev, "invalid phy address %hhu\n",
307 			   cmd->phy_address);
308 		return -EINVAL;
309 	}
310 
311 	if ((cmd->autoneg != AUTONEG_ENABLE) &&
312 	    (cmd->autoneg != AUTONEG_DISABLE)) {
313 		netdev_err(netdev, "unsupported autoneg %hhu\n",
314 			   cmd->autoneg);
315 		return -EINVAL;
316 	}
317 
318 	if (cmd->autoneg == AUTONEG_DISABLE) {
319 		switch (speed) {
320 		case SPEED_10000:
321 			break;
322 		case SPEED_2500:
323 			if (pdata->speed_set != XGBE_SPEEDSET_2500_10000) {
324 				netdev_err(netdev, "unsupported speed %u\n",
325 					   speed);
326 				return -EINVAL;
327 			}
328 			break;
329 		case SPEED_1000:
330 			if (pdata->speed_set != XGBE_SPEEDSET_1000_10000) {
331 				netdev_err(netdev, "unsupported speed %u\n",
332 					   speed);
333 				return -EINVAL;
334 			}
335 			break;
336 		default:
337 			netdev_err(netdev, "unsupported speed %u\n", speed);
338 			return -EINVAL;
339 		}
340 
341 		if (cmd->duplex != DUPLEX_FULL) {
342 			netdev_err(netdev, "unsupported duplex %hhu\n",
343 				   cmd->duplex);
344 			return -EINVAL;
345 		}
346 	}
347 
348 	netif_dbg(pdata, link, netdev,
349 		  "requested advertisement %#x, phy supported %#x\n",
350 		  cmd->advertising, pdata->phy.supported);
351 
352 	cmd->advertising &= pdata->phy.supported;
353 	if ((cmd->autoneg == AUTONEG_ENABLE) && !cmd->advertising) {
354 		netdev_err(netdev,
355 			   "unsupported requested advertisement\n");
356 		return -EINVAL;
357 	}
358 
359 	ret = 0;
360 	pdata->phy.autoneg = cmd->autoneg;
361 	pdata->phy.speed = speed;
362 	pdata->phy.duplex = cmd->duplex;
363 	pdata->phy.advertising = cmd->advertising;
364 
365 	if (cmd->autoneg == AUTONEG_ENABLE)
366 		pdata->phy.advertising |= ADVERTISED_Autoneg;
367 	else
368 		pdata->phy.advertising &= ~ADVERTISED_Autoneg;
369 
370 	if (netif_running(netdev))
371 		ret = pdata->phy_if.phy_config_aneg(pdata);
372 
373 	return ret;
374 }
375 
376 static void xgbe_get_drvinfo(struct net_device *netdev,
377 			     struct ethtool_drvinfo *drvinfo)
378 {
379 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
380 	struct xgbe_hw_features *hw_feat = &pdata->hw_feat;
381 
382 	strlcpy(drvinfo->driver, XGBE_DRV_NAME, sizeof(drvinfo->driver));
383 	strlcpy(drvinfo->version, XGBE_DRV_VERSION, sizeof(drvinfo->version));
384 	strlcpy(drvinfo->bus_info, dev_name(pdata->dev),
385 		sizeof(drvinfo->bus_info));
386 	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), "%d.%d.%d",
387 		 XGMAC_GET_BITS(hw_feat->version, MAC_VR, USERVER),
388 		 XGMAC_GET_BITS(hw_feat->version, MAC_VR, DEVID),
389 		 XGMAC_GET_BITS(hw_feat->version, MAC_VR, SNPSVER));
390 }
391 
392 static u32 xgbe_get_msglevel(struct net_device *netdev)
393 {
394 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
395 
396 	return pdata->msg_enable;
397 }
398 
399 static void xgbe_set_msglevel(struct net_device *netdev, u32 msglevel)
400 {
401 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
402 
403 	pdata->msg_enable = msglevel;
404 }
405 
406 static int xgbe_get_coalesce(struct net_device *netdev,
407 			     struct ethtool_coalesce *ec)
408 {
409 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
410 
411 	memset(ec, 0, sizeof(struct ethtool_coalesce));
412 
413 	ec->rx_coalesce_usecs = pdata->rx_usecs;
414 	ec->rx_max_coalesced_frames = pdata->rx_frames;
415 
416 	ec->tx_max_coalesced_frames = pdata->tx_frames;
417 
418 	return 0;
419 }
420 
421 static int xgbe_set_coalesce(struct net_device *netdev,
422 			     struct ethtool_coalesce *ec)
423 {
424 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
425 	struct xgbe_hw_if *hw_if = &pdata->hw_if;
426 	unsigned int rx_frames, rx_riwt, rx_usecs;
427 	unsigned int tx_frames;
428 
429 	/* Check for not supported parameters  */
430 	if ((ec->rx_coalesce_usecs_irq) ||
431 	    (ec->rx_max_coalesced_frames_irq) ||
432 	    (ec->tx_coalesce_usecs) ||
433 	    (ec->tx_coalesce_usecs_irq) ||
434 	    (ec->tx_max_coalesced_frames_irq) ||
435 	    (ec->stats_block_coalesce_usecs) ||
436 	    (ec->use_adaptive_rx_coalesce) ||
437 	    (ec->use_adaptive_tx_coalesce) ||
438 	    (ec->pkt_rate_low) ||
439 	    (ec->rx_coalesce_usecs_low) ||
440 	    (ec->rx_max_coalesced_frames_low) ||
441 	    (ec->tx_coalesce_usecs_low) ||
442 	    (ec->tx_max_coalesced_frames_low) ||
443 	    (ec->pkt_rate_high) ||
444 	    (ec->rx_coalesce_usecs_high) ||
445 	    (ec->rx_max_coalesced_frames_high) ||
446 	    (ec->tx_coalesce_usecs_high) ||
447 	    (ec->tx_max_coalesced_frames_high) ||
448 	    (ec->rate_sample_interval)) {
449 		netdev_err(netdev, "unsupported coalescing parameter\n");
450 		return -EOPNOTSUPP;
451 	}
452 
453 	rx_riwt = hw_if->usec_to_riwt(pdata, ec->rx_coalesce_usecs);
454 	rx_usecs = ec->rx_coalesce_usecs;
455 	rx_frames = ec->rx_max_coalesced_frames;
456 
457 	/* Use smallest possible value if conversion resulted in zero */
458 	if (rx_usecs && !rx_riwt)
459 		rx_riwt = 1;
460 
461 	/* Check the bounds of values for Rx */
462 	if (rx_riwt > XGMAC_MAX_DMA_RIWT) {
463 		netdev_err(netdev, "rx-usec is limited to %d usecs\n",
464 			   hw_if->riwt_to_usec(pdata, XGMAC_MAX_DMA_RIWT));
465 		return -EINVAL;
466 	}
467 	if (rx_frames > pdata->rx_desc_count) {
468 		netdev_err(netdev, "rx-frames is limited to %d frames\n",
469 			   pdata->rx_desc_count);
470 		return -EINVAL;
471 	}
472 
473 	tx_frames = ec->tx_max_coalesced_frames;
474 
475 	/* Check the bounds of values for Tx */
476 	if (tx_frames > pdata->tx_desc_count) {
477 		netdev_err(netdev, "tx-frames is limited to %d frames\n",
478 			   pdata->tx_desc_count);
479 		return -EINVAL;
480 	}
481 
482 	pdata->rx_riwt = rx_riwt;
483 	pdata->rx_usecs = rx_usecs;
484 	pdata->rx_frames = rx_frames;
485 	hw_if->config_rx_coalesce(pdata);
486 
487 	pdata->tx_frames = tx_frames;
488 	hw_if->config_tx_coalesce(pdata);
489 
490 	return 0;
491 }
492 
493 static int xgbe_get_rxnfc(struct net_device *netdev,
494 			  struct ethtool_rxnfc *rxnfc, u32 *rule_locs)
495 {
496 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
497 
498 	switch (rxnfc->cmd) {
499 	case ETHTOOL_GRXRINGS:
500 		rxnfc->data = pdata->rx_ring_count;
501 		break;
502 	default:
503 		return -EOPNOTSUPP;
504 	}
505 
506 	return 0;
507 }
508 
509 static u32 xgbe_get_rxfh_key_size(struct net_device *netdev)
510 {
511 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
512 
513 	return sizeof(pdata->rss_key);
514 }
515 
516 static u32 xgbe_get_rxfh_indir_size(struct net_device *netdev)
517 {
518 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
519 
520 	return ARRAY_SIZE(pdata->rss_table);
521 }
522 
523 static int xgbe_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
524 			 u8 *hfunc)
525 {
526 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
527 	unsigned int i;
528 
529 	if (indir) {
530 		for (i = 0; i < ARRAY_SIZE(pdata->rss_table); i++)
531 			indir[i] = XGMAC_GET_BITS(pdata->rss_table[i],
532 						  MAC_RSSDR, DMCH);
533 	}
534 
535 	if (key)
536 		memcpy(key, pdata->rss_key, sizeof(pdata->rss_key));
537 
538 	if (hfunc)
539 		*hfunc = ETH_RSS_HASH_TOP;
540 
541 	return 0;
542 }
543 
544 static int xgbe_set_rxfh(struct net_device *netdev, const u32 *indir,
545 			 const u8 *key, const u8 hfunc)
546 {
547 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
548 	struct xgbe_hw_if *hw_if = &pdata->hw_if;
549 	unsigned int ret;
550 
551 	if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) {
552 		netdev_err(netdev, "unsupported hash function\n");
553 		return -EOPNOTSUPP;
554 	}
555 
556 	if (indir) {
557 		ret = hw_if->set_rss_lookup_table(pdata, indir);
558 		if (ret)
559 			return ret;
560 	}
561 
562 	if (key) {
563 		ret = hw_if->set_rss_hash_key(pdata, key);
564 		if (ret)
565 			return ret;
566 	}
567 
568 	return 0;
569 }
570 
571 static int xgbe_get_ts_info(struct net_device *netdev,
572 			    struct ethtool_ts_info *ts_info)
573 {
574 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
575 
576 	ts_info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
577 				   SOF_TIMESTAMPING_RX_SOFTWARE |
578 				   SOF_TIMESTAMPING_SOFTWARE |
579 				   SOF_TIMESTAMPING_TX_HARDWARE |
580 				   SOF_TIMESTAMPING_RX_HARDWARE |
581 				   SOF_TIMESTAMPING_RAW_HARDWARE;
582 
583 	if (pdata->ptp_clock)
584 		ts_info->phc_index = ptp_clock_index(pdata->ptp_clock);
585 	else
586 		ts_info->phc_index = -1;
587 
588 	ts_info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
589 	ts_info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
590 			      (1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
591 			      (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
592 			      (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
593 			      (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
594 			      (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
595 			      (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) |
596 			      (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) |
597 			      (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) |
598 			      (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
599 			      (1 << HWTSTAMP_FILTER_ALL);
600 
601 	return 0;
602 }
603 
604 static const struct ethtool_ops xgbe_ethtool_ops = {
605 	.get_settings = xgbe_get_settings,
606 	.set_settings = xgbe_set_settings,
607 	.get_drvinfo = xgbe_get_drvinfo,
608 	.get_msglevel = xgbe_get_msglevel,
609 	.set_msglevel = xgbe_set_msglevel,
610 	.get_link = ethtool_op_get_link,
611 	.get_coalesce = xgbe_get_coalesce,
612 	.set_coalesce = xgbe_set_coalesce,
613 	.get_pauseparam = xgbe_get_pauseparam,
614 	.set_pauseparam = xgbe_set_pauseparam,
615 	.get_strings = xgbe_get_strings,
616 	.get_ethtool_stats = xgbe_get_ethtool_stats,
617 	.get_sset_count = xgbe_get_sset_count,
618 	.get_rxnfc = xgbe_get_rxnfc,
619 	.get_rxfh_key_size = xgbe_get_rxfh_key_size,
620 	.get_rxfh_indir_size = xgbe_get_rxfh_indir_size,
621 	.get_rxfh = xgbe_get_rxfh,
622 	.set_rxfh = xgbe_set_rxfh,
623 	.get_ts_info = xgbe_get_ts_info,
624 };
625 
626 struct ethtool_ops *xgbe_get_ethtool_ops(void)
627 {
628 	return (struct ethtool_ops *)&xgbe_ethtool_ops;
629 }
630