1 // SPDX-License-Identifier: GPL-2.0-only
2 /****************************************************************************
3  * Driver for Solarflare network controllers and boards
4  * Copyright 2019 Solarflare Communications Inc.
5  *
6  * This program is free software; you can redistribute it and/or modify it
7  * under the terms of the GNU General Public License version 2 as published
8  * by the Free Software Foundation, incorporated herein by reference.
9  */
10 #include <linux/module.h>
11 #include <linux/netdevice.h>
12 #include "net_driver.h"
13 #include "mcdi.h"
14 #include "nic.h"
15 #include "selftest.h"
16 #include "rx_common.h"
17 #include "ethtool_common.h"
18 #include "mcdi_port_common.h"
19 
20 struct efx_sw_stat_desc {
21 	const char *name;
22 	enum {
23 		EFX_ETHTOOL_STAT_SOURCE_nic,
24 		EFX_ETHTOOL_STAT_SOURCE_channel,
25 		EFX_ETHTOOL_STAT_SOURCE_tx_queue
26 	} source;
27 	unsigned int offset;
28 	u64 (*get_stat)(void *field); /* Reader function */
29 };
30 
31 /* Initialiser for a struct efx_sw_stat_desc with type-checking */
32 #define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
33 				get_stat_function) {			\
34 	.name = #stat_name,						\
35 	.source = EFX_ETHTOOL_STAT_SOURCE_##source_name,		\
36 	.offset = ((((field_type *) 0) ==				\
37 		      &((struct efx_##source_name *)0)->field) ?	\
38 		    offsetof(struct efx_##source_name, field) :		\
39 		    offsetof(struct efx_##source_name, field)),		\
40 	.get_stat = get_stat_function,					\
41 }
42 
43 static u64 efx_get_uint_stat(void *field)
44 {
45 	return *(unsigned int *)field;
46 }
47 
48 static u64 efx_get_atomic_stat(void *field)
49 {
50 	return atomic_read((atomic_t *) field);
51 }
52 
53 #define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field)		\
54 	EFX_ETHTOOL_STAT(field, nic, field,			\
55 			 atomic_t, efx_get_atomic_stat)
56 
57 #define EFX_ETHTOOL_UINT_CHANNEL_STAT(field)			\
58 	EFX_ETHTOOL_STAT(field, channel, n_##field,		\
59 			 unsigned int, efx_get_uint_stat)
60 #define EFX_ETHTOOL_UINT_CHANNEL_STAT_NO_N(field)		\
61 	EFX_ETHTOOL_STAT(field, channel, field,			\
62 			 unsigned int, efx_get_uint_stat)
63 
64 #define EFX_ETHTOOL_UINT_TXQ_STAT(field)			\
65 	EFX_ETHTOOL_STAT(tx_##field, tx_queue, field,		\
66 			 unsigned int, efx_get_uint_stat)
67 
68 static const struct efx_sw_stat_desc efx_sw_stat_desc[] = {
69 	EFX_ETHTOOL_UINT_TXQ_STAT(merge_events),
70 	EFX_ETHTOOL_UINT_TXQ_STAT(tso_bursts),
71 	EFX_ETHTOOL_UINT_TXQ_STAT(tso_long_headers),
72 	EFX_ETHTOOL_UINT_TXQ_STAT(tso_packets),
73 	EFX_ETHTOOL_UINT_TXQ_STAT(tso_fallbacks),
74 	EFX_ETHTOOL_UINT_TXQ_STAT(pushes),
75 	EFX_ETHTOOL_UINT_TXQ_STAT(pio_packets),
76 	EFX_ETHTOOL_UINT_TXQ_STAT(cb_packets),
77 	EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
78 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
79 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
80 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
81 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_inner_ip_hdr_chksum_err),
82 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_inner_tcp_udp_chksum_err),
83 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_outer_ip_hdr_chksum_err),
84 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_outer_tcp_udp_chksum_err),
85 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_eth_crc_err),
86 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
87 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
88 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_events),
89 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_packets),
90 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_drops),
91 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_bad_drops),
92 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_tx),
93 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_redirect),
94 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mport_bad),
95 #ifdef CONFIG_RFS_ACCEL
96 	EFX_ETHTOOL_UINT_CHANNEL_STAT_NO_N(rfs_filter_count),
97 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rfs_succeeded),
98 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rfs_failed),
99 #endif
100 };
101 
102 #define EFX_ETHTOOL_SW_STAT_COUNT ARRAY_SIZE(efx_sw_stat_desc)
103 
104 void efx_ethtool_get_drvinfo(struct net_device *net_dev,
105 			     struct ethtool_drvinfo *info)
106 {
107 	struct efx_nic *efx = efx_netdev_priv(net_dev);
108 
109 	strscpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
110 	efx_mcdi_print_fwver(efx, info->fw_version,
111 			     sizeof(info->fw_version));
112 	strscpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
113 }
114 
115 u32 efx_ethtool_get_msglevel(struct net_device *net_dev)
116 {
117 	struct efx_nic *efx = efx_netdev_priv(net_dev);
118 
119 	return efx->msg_enable;
120 }
121 
122 void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
123 {
124 	struct efx_nic *efx = efx_netdev_priv(net_dev);
125 
126 	efx->msg_enable = msg_enable;
127 }
128 
129 void efx_ethtool_self_test(struct net_device *net_dev,
130 			   struct ethtool_test *test, u64 *data)
131 {
132 	struct efx_nic *efx = efx_netdev_priv(net_dev);
133 	struct efx_self_tests *efx_tests;
134 	bool already_up;
135 	int rc = -ENOMEM;
136 
137 	efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL);
138 	if (!efx_tests)
139 		goto fail;
140 
141 	if (!efx_net_active(efx->state)) {
142 		rc = -EBUSY;
143 		goto out;
144 	}
145 
146 	netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
147 		   (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
148 
149 	/* We need rx buffers and interrupts. */
150 	already_up = (efx->net_dev->flags & IFF_UP);
151 	if (!already_up) {
152 		rc = dev_open(efx->net_dev, NULL);
153 		if (rc) {
154 			netif_err(efx, drv, efx->net_dev,
155 				  "failed opening device.\n");
156 			goto out;
157 		}
158 	}
159 
160 	rc = efx_selftest(efx, efx_tests, test->flags);
161 
162 	if (!already_up)
163 		dev_close(efx->net_dev);
164 
165 	netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
166 		   rc == 0 ? "passed" : "failed",
167 		   (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
168 
169 out:
170 	efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data);
171 	kfree(efx_tests);
172 fail:
173 	if (rc)
174 		test->flags |= ETH_TEST_FL_FAILED;
175 }
176 
177 void efx_ethtool_get_pauseparam(struct net_device *net_dev,
178 				struct ethtool_pauseparam *pause)
179 {
180 	struct efx_nic *efx = efx_netdev_priv(net_dev);
181 
182 	pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
183 	pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
184 	pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
185 }
186 
187 int efx_ethtool_set_pauseparam(struct net_device *net_dev,
188 			       struct ethtool_pauseparam *pause)
189 {
190 	struct efx_nic *efx = efx_netdev_priv(net_dev);
191 	u8 wanted_fc, old_fc;
192 	u32 old_adv;
193 	int rc = 0;
194 
195 	mutex_lock(&efx->mac_lock);
196 
197 	wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
198 		     (pause->tx_pause ? EFX_FC_TX : 0) |
199 		     (pause->autoneg ? EFX_FC_AUTO : 0));
200 
201 	if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
202 		netif_dbg(efx, drv, efx->net_dev,
203 			  "Flow control unsupported: tx ON rx OFF\n");
204 		rc = -EINVAL;
205 		goto out;
206 	}
207 
208 	if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising[0]) {
209 		netif_dbg(efx, drv, efx->net_dev,
210 			  "Autonegotiation is disabled\n");
211 		rc = -EINVAL;
212 		goto out;
213 	}
214 
215 	/* Hook for Falcon bug 11482 workaround */
216 	if (efx->type->prepare_enable_fc_tx &&
217 	    (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX))
218 		efx->type->prepare_enable_fc_tx(efx);
219 
220 	old_adv = efx->link_advertising[0];
221 	old_fc = efx->wanted_fc;
222 	efx_link_set_wanted_fc(efx, wanted_fc);
223 	if (efx->link_advertising[0] != old_adv ||
224 	    (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
225 		rc = efx_mcdi_port_reconfigure(efx);
226 		if (rc) {
227 			netif_err(efx, drv, efx->net_dev,
228 				  "Unable to advertise requested flow "
229 				  "control setting\n");
230 			goto out;
231 		}
232 	}
233 
234 	/* Reconfigure the MAC. The PHY *may* generate a link state change event
235 	 * if the user just changed the advertised capabilities, but there's no
236 	 * harm doing this twice */
237 	efx_mac_reconfigure(efx, false);
238 
239 out:
240 	mutex_unlock(&efx->mac_lock);
241 
242 	return rc;
243 }
244 
245 /**
246  * efx_fill_test - fill in an individual self-test entry
247  * @test_index:		Index of the test
248  * @strings:		Ethtool strings, or %NULL
249  * @data:		Ethtool test results, or %NULL
250  * @test:		Pointer to test result (used only if data != %NULL)
251  * @unit_format:	Unit name format (e.g. "chan\%d")
252  * @unit_id:		Unit id (e.g. 0 for "chan0")
253  * @test_format:	Test name format (e.g. "loopback.\%s.tx.sent")
254  * @test_id:		Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
255  *
256  * Fill in an individual self-test entry.
257  */
258 static void efx_fill_test(unsigned int test_index, u8 *strings, u64 *data,
259 			  int *test, const char *unit_format, int unit_id,
260 			  const char *test_format, const char *test_id)
261 {
262 	char unit_str[ETH_GSTRING_LEN], test_str[ETH_GSTRING_LEN];
263 
264 	/* Fill data value, if applicable */
265 	if (data)
266 		data[test_index] = *test;
267 
268 	/* Fill string, if applicable */
269 	if (strings) {
270 		if (strchr(unit_format, '%'))
271 			snprintf(unit_str, sizeof(unit_str),
272 				 unit_format, unit_id);
273 		else
274 			strcpy(unit_str, unit_format);
275 		snprintf(test_str, sizeof(test_str), test_format, test_id);
276 		snprintf(strings + test_index * ETH_GSTRING_LEN,
277 			 ETH_GSTRING_LEN,
278 			 "%-6s %-24s", unit_str, test_str);
279 	}
280 }
281 
282 #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
283 #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->label
284 #define EFX_LOOPBACK_NAME(_mode, _counter)			\
285 	"loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
286 
287 /**
288  * efx_fill_loopback_test - fill in a block of loopback self-test entries
289  * @efx:		Efx NIC
290  * @lb_tests:		Efx loopback self-test results structure
291  * @mode:		Loopback test mode
292  * @test_index:		Starting index of the test
293  * @strings:		Ethtool strings, or %NULL
294  * @data:		Ethtool test results, or %NULL
295  *
296  * Fill in a block of loopback self-test entries.  Return new test
297  * index.
298  */
299 static int efx_fill_loopback_test(struct efx_nic *efx,
300 				  struct efx_loopback_self_tests *lb_tests,
301 				  enum efx_loopback_mode mode,
302 				  unsigned int test_index,
303 				  u8 *strings, u64 *data)
304 {
305 	struct efx_channel *channel =
306 		efx_get_channel(efx, efx->tx_channel_offset);
307 	struct efx_tx_queue *tx_queue;
308 
309 	efx_for_each_channel_tx_queue(tx_queue, channel) {
310 		efx_fill_test(test_index++, strings, data,
311 			      &lb_tests->tx_sent[tx_queue->label],
312 			      EFX_TX_QUEUE_NAME(tx_queue),
313 			      EFX_LOOPBACK_NAME(mode, "tx_sent"));
314 		efx_fill_test(test_index++, strings, data,
315 			      &lb_tests->tx_done[tx_queue->label],
316 			      EFX_TX_QUEUE_NAME(tx_queue),
317 			      EFX_LOOPBACK_NAME(mode, "tx_done"));
318 	}
319 	efx_fill_test(test_index++, strings, data,
320 		      &lb_tests->rx_good,
321 		      "rx", 0,
322 		      EFX_LOOPBACK_NAME(mode, "rx_good"));
323 	efx_fill_test(test_index++, strings, data,
324 		      &lb_tests->rx_bad,
325 		      "rx", 0,
326 		      EFX_LOOPBACK_NAME(mode, "rx_bad"));
327 
328 	return test_index;
329 }
330 
331 /**
332  * efx_ethtool_fill_self_tests - get self-test details
333  * @efx:		Efx NIC
334  * @tests:		Efx self-test results structure, or %NULL
335  * @strings:		Ethtool strings, or %NULL
336  * @data:		Ethtool test results, or %NULL
337  *
338  * Get self-test number of strings, strings, and/or test results.
339  * Return number of strings (== number of test results).
340  *
341  * The reason for merging these three functions is to make sure that
342  * they can never be inconsistent.
343  */
344 int efx_ethtool_fill_self_tests(struct efx_nic *efx,
345 				struct efx_self_tests *tests,
346 				u8 *strings, u64 *data)
347 {
348 	struct efx_channel *channel;
349 	unsigned int n = 0, i;
350 	enum efx_loopback_mode mode;
351 
352 	efx_fill_test(n++, strings, data, &tests->phy_alive,
353 		      "phy", 0, "alive", NULL);
354 	efx_fill_test(n++, strings, data, &tests->nvram,
355 		      "core", 0, "nvram", NULL);
356 	efx_fill_test(n++, strings, data, &tests->interrupt,
357 		      "core", 0, "interrupt", NULL);
358 
359 	/* Event queues */
360 	efx_for_each_channel(channel, efx) {
361 		efx_fill_test(n++, strings, data,
362 			      &tests->eventq_dma[channel->channel],
363 			      EFX_CHANNEL_NAME(channel),
364 			      "eventq.dma", NULL);
365 		efx_fill_test(n++, strings, data,
366 			      &tests->eventq_int[channel->channel],
367 			      EFX_CHANNEL_NAME(channel),
368 			      "eventq.int", NULL);
369 	}
370 
371 	efx_fill_test(n++, strings, data, &tests->memory,
372 		      "core", 0, "memory", NULL);
373 	efx_fill_test(n++, strings, data, &tests->registers,
374 		      "core", 0, "registers", NULL);
375 
376 	for (i = 0; true; ++i) {
377 		const char *name;
378 
379 		EFX_WARN_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
380 		name = efx_mcdi_phy_test_name(efx, i);
381 		if (name == NULL)
382 			break;
383 
384 		efx_fill_test(n++, strings, data, &tests->phy_ext[i], "phy", 0, name, NULL);
385 	}
386 
387 	/* Loopback tests */
388 	for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
389 		if (!(efx->loopback_modes & (1 << mode)))
390 			continue;
391 		n = efx_fill_loopback_test(efx,
392 					   &tests->loopback[mode], mode, n,
393 					   strings, data);
394 	}
395 
396 	return n;
397 }
398 
399 static size_t efx_describe_per_queue_stats(struct efx_nic *efx, u8 *strings)
400 {
401 	size_t n_stats = 0;
402 	struct efx_channel *channel;
403 
404 	efx_for_each_channel(channel, efx) {
405 		if (efx_channel_has_tx_queues(channel)) {
406 			n_stats++;
407 			if (strings != NULL) {
408 				snprintf(strings, ETH_GSTRING_LEN,
409 					 "tx-%u.tx_packets",
410 					 channel->tx_queue[0].queue /
411 					 EFX_MAX_TXQ_PER_CHANNEL);
412 
413 				strings += ETH_GSTRING_LEN;
414 			}
415 		}
416 	}
417 	efx_for_each_channel(channel, efx) {
418 		if (efx_channel_has_rx_queue(channel)) {
419 			n_stats++;
420 			if (strings != NULL) {
421 				snprintf(strings, ETH_GSTRING_LEN,
422 					 "rx-%d.rx_packets", channel->channel);
423 				strings += ETH_GSTRING_LEN;
424 			}
425 		}
426 	}
427 	if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) {
428 		unsigned short xdp;
429 
430 		for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) {
431 			n_stats++;
432 			if (strings) {
433 				snprintf(strings, ETH_GSTRING_LEN,
434 					 "tx-xdp-cpu-%hu.tx_packets", xdp);
435 				strings += ETH_GSTRING_LEN;
436 			}
437 		}
438 	}
439 
440 	return n_stats;
441 }
442 
443 int efx_ethtool_get_sset_count(struct net_device *net_dev, int string_set)
444 {
445 	struct efx_nic *efx = efx_netdev_priv(net_dev);
446 
447 	switch (string_set) {
448 	case ETH_SS_STATS:
449 		return efx->type->describe_stats(efx, NULL) +
450 		       EFX_ETHTOOL_SW_STAT_COUNT +
451 		       efx_describe_per_queue_stats(efx, NULL) +
452 		       efx_ptp_describe_stats(efx, NULL);
453 	case ETH_SS_TEST:
454 		return efx_ethtool_fill_self_tests(efx, NULL, NULL, NULL);
455 	default:
456 		return -EINVAL;
457 	}
458 }
459 
460 void efx_ethtool_get_strings(struct net_device *net_dev,
461 			     u32 string_set, u8 *strings)
462 {
463 	struct efx_nic *efx = efx_netdev_priv(net_dev);
464 	int i;
465 
466 	switch (string_set) {
467 	case ETH_SS_STATS:
468 		strings += (efx->type->describe_stats(efx, strings) *
469 			    ETH_GSTRING_LEN);
470 		for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++)
471 			strscpy(strings + i * ETH_GSTRING_LEN,
472 				efx_sw_stat_desc[i].name, ETH_GSTRING_LEN);
473 		strings += EFX_ETHTOOL_SW_STAT_COUNT * ETH_GSTRING_LEN;
474 		strings += (efx_describe_per_queue_stats(efx, strings) *
475 			    ETH_GSTRING_LEN);
476 		efx_ptp_describe_stats(efx, strings);
477 		break;
478 	case ETH_SS_TEST:
479 		efx_ethtool_fill_self_tests(efx, NULL, strings, NULL);
480 		break;
481 	default:
482 		/* No other string sets */
483 		break;
484 	}
485 }
486 
487 void efx_ethtool_get_stats(struct net_device *net_dev,
488 			   struct ethtool_stats *stats,
489 			   u64 *data)
490 {
491 	struct efx_nic *efx = efx_netdev_priv(net_dev);
492 	const struct efx_sw_stat_desc *stat;
493 	struct efx_channel *channel;
494 	struct efx_tx_queue *tx_queue;
495 	struct efx_rx_queue *rx_queue;
496 	int i;
497 
498 	spin_lock_bh(&efx->stats_lock);
499 
500 	/* Get NIC statistics */
501 	data += efx->type->update_stats(efx, data, NULL);
502 
503 	/* Get software statistics */
504 	for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) {
505 		stat = &efx_sw_stat_desc[i];
506 		switch (stat->source) {
507 		case EFX_ETHTOOL_STAT_SOURCE_nic:
508 			data[i] = stat->get_stat((void *)efx + stat->offset);
509 			break;
510 		case EFX_ETHTOOL_STAT_SOURCE_channel:
511 			data[i] = 0;
512 			efx_for_each_channel(channel, efx)
513 				data[i] += stat->get_stat((void *)channel +
514 							  stat->offset);
515 			break;
516 		case EFX_ETHTOOL_STAT_SOURCE_tx_queue:
517 			data[i] = 0;
518 			efx_for_each_channel(channel, efx) {
519 				efx_for_each_channel_tx_queue(tx_queue, channel)
520 					data[i] +=
521 						stat->get_stat((void *)tx_queue
522 							       + stat->offset);
523 			}
524 			break;
525 		}
526 	}
527 	data += EFX_ETHTOOL_SW_STAT_COUNT;
528 
529 	spin_unlock_bh(&efx->stats_lock);
530 
531 	efx_for_each_channel(channel, efx) {
532 		if (efx_channel_has_tx_queues(channel)) {
533 			*data = 0;
534 			efx_for_each_channel_tx_queue(tx_queue, channel) {
535 				*data += tx_queue->tx_packets;
536 			}
537 			data++;
538 		}
539 	}
540 	efx_for_each_channel(channel, efx) {
541 		if (efx_channel_has_rx_queue(channel)) {
542 			*data = 0;
543 			efx_for_each_channel_rx_queue(rx_queue, channel) {
544 				*data += rx_queue->rx_packets;
545 			}
546 			data++;
547 		}
548 	}
549 	if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) {
550 		int xdp;
551 
552 		for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) {
553 			data[0] = efx->xdp_tx_queues[xdp]->tx_packets;
554 			data++;
555 		}
556 	}
557 
558 	efx_ptp_update_stats(efx, data);
559 }
560 
561 /* This must be called with rtnl_lock held. */
562 int efx_ethtool_get_link_ksettings(struct net_device *net_dev,
563 				   struct ethtool_link_ksettings *cmd)
564 {
565 	struct efx_nic *efx = efx_netdev_priv(net_dev);
566 	struct efx_link_state *link_state = &efx->link_state;
567 
568 	mutex_lock(&efx->mac_lock);
569 	efx_mcdi_phy_get_link_ksettings(efx, cmd);
570 	mutex_unlock(&efx->mac_lock);
571 
572 	/* Both MACs support pause frames (bidirectional and respond-only) */
573 	ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
574 	ethtool_link_ksettings_add_link_mode(cmd, supported, Asym_Pause);
575 
576 	if (LOOPBACK_INTERNAL(efx)) {
577 		cmd->base.speed = link_state->speed;
578 		cmd->base.duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
579 	}
580 
581 	return 0;
582 }
583 
584 /* This must be called with rtnl_lock held. */
585 int efx_ethtool_set_link_ksettings(struct net_device *net_dev,
586 				   const struct ethtool_link_ksettings *cmd)
587 {
588 	struct efx_nic *efx = efx_netdev_priv(net_dev);
589 	int rc;
590 
591 	/* GMAC does not support 1000Mbps HD */
592 	if ((cmd->base.speed == SPEED_1000) &&
593 	    (cmd->base.duplex != DUPLEX_FULL)) {
594 		netif_dbg(efx, drv, efx->net_dev,
595 			  "rejecting unsupported 1000Mbps HD setting\n");
596 		return -EINVAL;
597 	}
598 
599 	mutex_lock(&efx->mac_lock);
600 	rc = efx_mcdi_phy_set_link_ksettings(efx, cmd);
601 	mutex_unlock(&efx->mac_lock);
602 	return rc;
603 }
604 
605 int efx_ethtool_get_fecparam(struct net_device *net_dev,
606 			     struct ethtool_fecparam *fecparam)
607 {
608 	struct efx_nic *efx = efx_netdev_priv(net_dev);
609 	int rc;
610 
611 	mutex_lock(&efx->mac_lock);
612 	rc = efx_mcdi_phy_get_fecparam(efx, fecparam);
613 	mutex_unlock(&efx->mac_lock);
614 
615 	return rc;
616 }
617 
618 int efx_ethtool_set_fecparam(struct net_device *net_dev,
619 			     struct ethtool_fecparam *fecparam)
620 {
621 	struct efx_nic *efx = efx_netdev_priv(net_dev);
622 	int rc;
623 
624 	mutex_lock(&efx->mac_lock);
625 	rc = efx_mcdi_phy_set_fecparam(efx, fecparam);
626 	mutex_unlock(&efx->mac_lock);
627 
628 	return rc;
629 }
630 
631 /* MAC address mask including only I/G bit */
632 static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = {0x01, 0, 0, 0, 0, 0};
633 
634 #define IP4_ADDR_FULL_MASK	((__force __be32)~0)
635 #define IP_PROTO_FULL_MASK	0xFF
636 #define PORT_FULL_MASK		((__force __be16)~0)
637 #define ETHER_TYPE_FULL_MASK	((__force __be16)~0)
638 
639 static inline void ip6_fill_mask(__be32 *mask)
640 {
641 	mask[0] = mask[1] = mask[2] = mask[3] = ~(__be32)0;
642 }
643 
644 static int efx_ethtool_get_class_rule(struct efx_nic *efx,
645 				      struct ethtool_rx_flow_spec *rule,
646 				      u32 *rss_context)
647 {
648 	struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
649 	struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
650 	struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
651 	struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
652 	struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
653 	struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
654 	struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
655 	struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
656 	struct ethhdr *mac_entry = &rule->h_u.ether_spec;
657 	struct ethhdr *mac_mask = &rule->m_u.ether_spec;
658 	struct efx_filter_spec spec;
659 	int rc;
660 
661 	rc = efx_filter_get_filter_safe(efx, EFX_FILTER_PRI_MANUAL,
662 					rule->location, &spec);
663 	if (rc)
664 		return rc;
665 
666 	if (spec.dmaq_id == EFX_FILTER_RX_DMAQ_ID_DROP)
667 		rule->ring_cookie = RX_CLS_FLOW_DISC;
668 	else
669 		rule->ring_cookie = spec.dmaq_id;
670 
671 	if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) &&
672 	    spec.ether_type == htons(ETH_P_IP) &&
673 	    (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) &&
674 	    (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
675 	    !(spec.match_flags &
676 	      ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
677 		EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
678 		EFX_FILTER_MATCH_IP_PROTO |
679 		EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) {
680 		rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
681 				   TCP_V4_FLOW : UDP_V4_FLOW);
682 		if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
683 			ip_entry->ip4dst = spec.loc_host[0];
684 			ip_mask->ip4dst = IP4_ADDR_FULL_MASK;
685 		}
686 		if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
687 			ip_entry->ip4src = spec.rem_host[0];
688 			ip_mask->ip4src = IP4_ADDR_FULL_MASK;
689 		}
690 		if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) {
691 			ip_entry->pdst = spec.loc_port;
692 			ip_mask->pdst = PORT_FULL_MASK;
693 		}
694 		if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) {
695 			ip_entry->psrc = spec.rem_port;
696 			ip_mask->psrc = PORT_FULL_MASK;
697 		}
698 	} else if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) &&
699 	    spec.ether_type == htons(ETH_P_IPV6) &&
700 	    (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) &&
701 	    (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
702 	    !(spec.match_flags &
703 	      ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
704 		EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
705 		EFX_FILTER_MATCH_IP_PROTO |
706 		EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) {
707 		rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
708 				   TCP_V6_FLOW : UDP_V6_FLOW);
709 		if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
710 			memcpy(ip6_entry->ip6dst, spec.loc_host,
711 			       sizeof(ip6_entry->ip6dst));
712 			ip6_fill_mask(ip6_mask->ip6dst);
713 		}
714 		if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
715 			memcpy(ip6_entry->ip6src, spec.rem_host,
716 			       sizeof(ip6_entry->ip6src));
717 			ip6_fill_mask(ip6_mask->ip6src);
718 		}
719 		if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) {
720 			ip6_entry->pdst = spec.loc_port;
721 			ip6_mask->pdst = PORT_FULL_MASK;
722 		}
723 		if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) {
724 			ip6_entry->psrc = spec.rem_port;
725 			ip6_mask->psrc = PORT_FULL_MASK;
726 		}
727 	} else if (!(spec.match_flags &
728 		     ~(EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG |
729 		       EFX_FILTER_MATCH_REM_MAC | EFX_FILTER_MATCH_ETHER_TYPE |
730 		       EFX_FILTER_MATCH_OUTER_VID))) {
731 		rule->flow_type = ETHER_FLOW;
732 		if (spec.match_flags &
733 		    (EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG)) {
734 			ether_addr_copy(mac_entry->h_dest, spec.loc_mac);
735 			if (spec.match_flags & EFX_FILTER_MATCH_LOC_MAC)
736 				eth_broadcast_addr(mac_mask->h_dest);
737 			else
738 				ether_addr_copy(mac_mask->h_dest,
739 						mac_addr_ig_mask);
740 		}
741 		if (spec.match_flags & EFX_FILTER_MATCH_REM_MAC) {
742 			ether_addr_copy(mac_entry->h_source, spec.rem_mac);
743 			eth_broadcast_addr(mac_mask->h_source);
744 		}
745 		if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) {
746 			mac_entry->h_proto = spec.ether_type;
747 			mac_mask->h_proto = ETHER_TYPE_FULL_MASK;
748 		}
749 	} else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE &&
750 		   spec.ether_type == htons(ETH_P_IP) &&
751 		   !(spec.match_flags &
752 		     ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
753 		       EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
754 		       EFX_FILTER_MATCH_IP_PROTO))) {
755 		rule->flow_type = IPV4_USER_FLOW;
756 		uip_entry->ip_ver = ETH_RX_NFC_IP4;
757 		if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) {
758 			uip_mask->proto = IP_PROTO_FULL_MASK;
759 			uip_entry->proto = spec.ip_proto;
760 		}
761 		if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
762 			uip_entry->ip4dst = spec.loc_host[0];
763 			uip_mask->ip4dst = IP4_ADDR_FULL_MASK;
764 		}
765 		if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
766 			uip_entry->ip4src = spec.rem_host[0];
767 			uip_mask->ip4src = IP4_ADDR_FULL_MASK;
768 		}
769 	} else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE &&
770 		   spec.ether_type == htons(ETH_P_IPV6) &&
771 		   !(spec.match_flags &
772 		     ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
773 		       EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
774 		       EFX_FILTER_MATCH_IP_PROTO))) {
775 		rule->flow_type = IPV6_USER_FLOW;
776 		if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) {
777 			uip6_mask->l4_proto = IP_PROTO_FULL_MASK;
778 			uip6_entry->l4_proto = spec.ip_proto;
779 		}
780 		if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
781 			memcpy(uip6_entry->ip6dst, spec.loc_host,
782 			       sizeof(uip6_entry->ip6dst));
783 			ip6_fill_mask(uip6_mask->ip6dst);
784 		}
785 		if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
786 			memcpy(uip6_entry->ip6src, spec.rem_host,
787 			       sizeof(uip6_entry->ip6src));
788 			ip6_fill_mask(uip6_mask->ip6src);
789 		}
790 	} else {
791 		/* The above should handle all filters that we insert */
792 		WARN_ON(1);
793 		return -EINVAL;
794 	}
795 
796 	if (spec.match_flags & EFX_FILTER_MATCH_OUTER_VID) {
797 		rule->flow_type |= FLOW_EXT;
798 		rule->h_ext.vlan_tci = spec.outer_vid;
799 		rule->m_ext.vlan_tci = htons(0xfff);
800 	}
801 
802 	if (spec.flags & EFX_FILTER_FLAG_RX_RSS) {
803 		rule->flow_type |= FLOW_RSS;
804 		*rss_context = spec.rss_context;
805 	}
806 
807 	return rc;
808 }
809 
810 int efx_ethtool_get_rxnfc(struct net_device *net_dev,
811 			  struct ethtool_rxnfc *info, u32 *rule_locs)
812 {
813 	struct efx_nic *efx = efx_netdev_priv(net_dev);
814 	u32 rss_context = 0;
815 	s32 rc = 0;
816 
817 	switch (info->cmd) {
818 	case ETHTOOL_GRXRINGS:
819 		info->data = efx->n_rx_channels;
820 		return 0;
821 
822 	case ETHTOOL_GRXFH: {
823 		struct efx_rss_context *ctx = &efx->rss_context;
824 		__u64 data;
825 
826 		mutex_lock(&efx->rss_lock);
827 		if (info->flow_type & FLOW_RSS && info->rss_context) {
828 			ctx = efx_find_rss_context_entry(efx, info->rss_context);
829 			if (!ctx) {
830 				rc = -ENOENT;
831 				goto out_unlock;
832 			}
833 		}
834 
835 		data = 0;
836 		if (!efx_rss_active(ctx)) /* No RSS */
837 			goto out_setdata_unlock;
838 
839 		switch (info->flow_type & ~FLOW_RSS) {
840 		case UDP_V4_FLOW:
841 		case UDP_V6_FLOW:
842 			if (ctx->rx_hash_udp_4tuple)
843 				data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 |
844 					RXH_IP_SRC | RXH_IP_DST);
845 			else
846 				data = RXH_IP_SRC | RXH_IP_DST;
847 			break;
848 		case TCP_V4_FLOW:
849 		case TCP_V6_FLOW:
850 			data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 |
851 				RXH_IP_SRC | RXH_IP_DST);
852 			break;
853 		case SCTP_V4_FLOW:
854 		case SCTP_V6_FLOW:
855 		case AH_ESP_V4_FLOW:
856 		case AH_ESP_V6_FLOW:
857 		case IPV4_FLOW:
858 		case IPV6_FLOW:
859 			data = RXH_IP_SRC | RXH_IP_DST;
860 			break;
861 		default:
862 			break;
863 		}
864 out_setdata_unlock:
865 		info->data = data;
866 out_unlock:
867 		mutex_unlock(&efx->rss_lock);
868 		return rc;
869 	}
870 
871 	case ETHTOOL_GRXCLSRLCNT:
872 		info->data = efx_filter_get_rx_id_limit(efx);
873 		if (info->data == 0)
874 			return -EOPNOTSUPP;
875 		info->data |= RX_CLS_LOC_SPECIAL;
876 		info->rule_cnt =
877 			efx_filter_count_rx_used(efx, EFX_FILTER_PRI_MANUAL);
878 		return 0;
879 
880 	case ETHTOOL_GRXCLSRULE:
881 		if (efx_filter_get_rx_id_limit(efx) == 0)
882 			return -EOPNOTSUPP;
883 		rc = efx_ethtool_get_class_rule(efx, &info->fs, &rss_context);
884 		if (rc < 0)
885 			return rc;
886 		if (info->fs.flow_type & FLOW_RSS)
887 			info->rss_context = rss_context;
888 		return 0;
889 
890 	case ETHTOOL_GRXCLSRLALL:
891 		info->data = efx_filter_get_rx_id_limit(efx);
892 		if (info->data == 0)
893 			return -EOPNOTSUPP;
894 		rc = efx_filter_get_rx_ids(efx, EFX_FILTER_PRI_MANUAL,
895 					   rule_locs, info->rule_cnt);
896 		if (rc < 0)
897 			return rc;
898 		info->rule_cnt = rc;
899 		return 0;
900 
901 	default:
902 		return -EOPNOTSUPP;
903 	}
904 }
905 
906 static inline bool ip6_mask_is_full(__be32 mask[4])
907 {
908 	return !~(mask[0] & mask[1] & mask[2] & mask[3]);
909 }
910 
911 static inline bool ip6_mask_is_empty(__be32 mask[4])
912 {
913 	return !(mask[0] | mask[1] | mask[2] | mask[3]);
914 }
915 
916 static int efx_ethtool_set_class_rule(struct efx_nic *efx,
917 				      struct ethtool_rx_flow_spec *rule,
918 				      u32 rss_context)
919 {
920 	struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
921 	struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
922 	struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
923 	struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
924 	struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
925 	struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
926 	struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
927 	struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
928 	u32 flow_type = rule->flow_type & ~(FLOW_EXT | FLOW_RSS);
929 	struct ethhdr *mac_entry = &rule->h_u.ether_spec;
930 	struct ethhdr *mac_mask = &rule->m_u.ether_spec;
931 	enum efx_filter_flags flags = 0;
932 	struct efx_filter_spec spec;
933 	int rc;
934 
935 	/* Check that user wants us to choose the location */
936 	if (rule->location != RX_CLS_LOC_ANY)
937 		return -EINVAL;
938 
939 	/* Range-check ring_cookie */
940 	if (rule->ring_cookie >= efx->n_rx_channels &&
941 	    rule->ring_cookie != RX_CLS_FLOW_DISC)
942 		return -EINVAL;
943 
944 	/* Check for unsupported extensions */
945 	if ((rule->flow_type & FLOW_EXT) &&
946 	    (rule->m_ext.vlan_etype || rule->m_ext.data[0] ||
947 	     rule->m_ext.data[1]))
948 		return -EINVAL;
949 
950 	if (efx->rx_scatter)
951 		flags |= EFX_FILTER_FLAG_RX_SCATTER;
952 	if (rule->flow_type & FLOW_RSS)
953 		flags |= EFX_FILTER_FLAG_RX_RSS;
954 
955 	efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL, flags,
956 			   (rule->ring_cookie == RX_CLS_FLOW_DISC) ?
957 			   EFX_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie);
958 
959 	if (rule->flow_type & FLOW_RSS)
960 		spec.rss_context = rss_context;
961 
962 	switch (flow_type) {
963 	case TCP_V4_FLOW:
964 	case UDP_V4_FLOW:
965 		spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE |
966 				    EFX_FILTER_MATCH_IP_PROTO);
967 		spec.ether_type = htons(ETH_P_IP);
968 		spec.ip_proto = flow_type == TCP_V4_FLOW ? IPPROTO_TCP
969 							 : IPPROTO_UDP;
970 		if (ip_mask->ip4dst) {
971 			if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK)
972 				return -EINVAL;
973 			spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
974 			spec.loc_host[0] = ip_entry->ip4dst;
975 		}
976 		if (ip_mask->ip4src) {
977 			if (ip_mask->ip4src != IP4_ADDR_FULL_MASK)
978 				return -EINVAL;
979 			spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
980 			spec.rem_host[0] = ip_entry->ip4src;
981 		}
982 		if (ip_mask->pdst) {
983 			if (ip_mask->pdst != PORT_FULL_MASK)
984 				return -EINVAL;
985 			spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT;
986 			spec.loc_port = ip_entry->pdst;
987 		}
988 		if (ip_mask->psrc) {
989 			if (ip_mask->psrc != PORT_FULL_MASK)
990 				return -EINVAL;
991 			spec.match_flags |= EFX_FILTER_MATCH_REM_PORT;
992 			spec.rem_port = ip_entry->psrc;
993 		}
994 		if (ip_mask->tos)
995 			return -EINVAL;
996 		break;
997 
998 	case TCP_V6_FLOW:
999 	case UDP_V6_FLOW:
1000 		spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE |
1001 				    EFX_FILTER_MATCH_IP_PROTO);
1002 		spec.ether_type = htons(ETH_P_IPV6);
1003 		spec.ip_proto = flow_type == TCP_V6_FLOW ? IPPROTO_TCP
1004 							 : IPPROTO_UDP;
1005 		if (!ip6_mask_is_empty(ip6_mask->ip6dst)) {
1006 			if (!ip6_mask_is_full(ip6_mask->ip6dst))
1007 				return -EINVAL;
1008 			spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1009 			memcpy(spec.loc_host, ip6_entry->ip6dst, sizeof(spec.loc_host));
1010 		}
1011 		if (!ip6_mask_is_empty(ip6_mask->ip6src)) {
1012 			if (!ip6_mask_is_full(ip6_mask->ip6src))
1013 				return -EINVAL;
1014 			spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1015 			memcpy(spec.rem_host, ip6_entry->ip6src, sizeof(spec.rem_host));
1016 		}
1017 		if (ip6_mask->pdst) {
1018 			if (ip6_mask->pdst != PORT_FULL_MASK)
1019 				return -EINVAL;
1020 			spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT;
1021 			spec.loc_port = ip6_entry->pdst;
1022 		}
1023 		if (ip6_mask->psrc) {
1024 			if (ip6_mask->psrc != PORT_FULL_MASK)
1025 				return -EINVAL;
1026 			spec.match_flags |= EFX_FILTER_MATCH_REM_PORT;
1027 			spec.rem_port = ip6_entry->psrc;
1028 		}
1029 		if (ip6_mask->tclass)
1030 			return -EINVAL;
1031 		break;
1032 
1033 	case IPV4_USER_FLOW:
1034 		if (uip_mask->l4_4_bytes || uip_mask->tos || uip_mask->ip_ver ||
1035 		    uip_entry->ip_ver != ETH_RX_NFC_IP4)
1036 			return -EINVAL;
1037 		spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE;
1038 		spec.ether_type = htons(ETH_P_IP);
1039 		if (uip_mask->ip4dst) {
1040 			if (uip_mask->ip4dst != IP4_ADDR_FULL_MASK)
1041 				return -EINVAL;
1042 			spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1043 			spec.loc_host[0] = uip_entry->ip4dst;
1044 		}
1045 		if (uip_mask->ip4src) {
1046 			if (uip_mask->ip4src != IP4_ADDR_FULL_MASK)
1047 				return -EINVAL;
1048 			spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1049 			spec.rem_host[0] = uip_entry->ip4src;
1050 		}
1051 		if (uip_mask->proto) {
1052 			if (uip_mask->proto != IP_PROTO_FULL_MASK)
1053 				return -EINVAL;
1054 			spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO;
1055 			spec.ip_proto = uip_entry->proto;
1056 		}
1057 		break;
1058 
1059 	case IPV6_USER_FLOW:
1060 		if (uip6_mask->l4_4_bytes || uip6_mask->tclass)
1061 			return -EINVAL;
1062 		spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE;
1063 		spec.ether_type = htons(ETH_P_IPV6);
1064 		if (!ip6_mask_is_empty(uip6_mask->ip6dst)) {
1065 			if (!ip6_mask_is_full(uip6_mask->ip6dst))
1066 				return -EINVAL;
1067 			spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1068 			memcpy(spec.loc_host, uip6_entry->ip6dst, sizeof(spec.loc_host));
1069 		}
1070 		if (!ip6_mask_is_empty(uip6_mask->ip6src)) {
1071 			if (!ip6_mask_is_full(uip6_mask->ip6src))
1072 				return -EINVAL;
1073 			spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1074 			memcpy(spec.rem_host, uip6_entry->ip6src, sizeof(spec.rem_host));
1075 		}
1076 		if (uip6_mask->l4_proto) {
1077 			if (uip6_mask->l4_proto != IP_PROTO_FULL_MASK)
1078 				return -EINVAL;
1079 			spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO;
1080 			spec.ip_proto = uip6_entry->l4_proto;
1081 		}
1082 		break;
1083 
1084 	case ETHER_FLOW:
1085 		if (!is_zero_ether_addr(mac_mask->h_dest)) {
1086 			if (ether_addr_equal(mac_mask->h_dest,
1087 					     mac_addr_ig_mask))
1088 				spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC_IG;
1089 			else if (is_broadcast_ether_addr(mac_mask->h_dest))
1090 				spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC;
1091 			else
1092 				return -EINVAL;
1093 			ether_addr_copy(spec.loc_mac, mac_entry->h_dest);
1094 		}
1095 		if (!is_zero_ether_addr(mac_mask->h_source)) {
1096 			if (!is_broadcast_ether_addr(mac_mask->h_source))
1097 				return -EINVAL;
1098 			spec.match_flags |= EFX_FILTER_MATCH_REM_MAC;
1099 			ether_addr_copy(spec.rem_mac, mac_entry->h_source);
1100 		}
1101 		if (mac_mask->h_proto) {
1102 			if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK)
1103 				return -EINVAL;
1104 			spec.match_flags |= EFX_FILTER_MATCH_ETHER_TYPE;
1105 			spec.ether_type = mac_entry->h_proto;
1106 		}
1107 		break;
1108 
1109 	default:
1110 		return -EINVAL;
1111 	}
1112 
1113 	if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) {
1114 		if (rule->m_ext.vlan_tci != htons(0xfff))
1115 			return -EINVAL;
1116 		spec.match_flags |= EFX_FILTER_MATCH_OUTER_VID;
1117 		spec.outer_vid = rule->h_ext.vlan_tci;
1118 	}
1119 
1120 	rc = efx_filter_insert_filter(efx, &spec, true);
1121 	if (rc < 0)
1122 		return rc;
1123 
1124 	rule->location = rc;
1125 	return 0;
1126 }
1127 
1128 int efx_ethtool_set_rxnfc(struct net_device *net_dev,
1129 			  struct ethtool_rxnfc *info)
1130 {
1131 	struct efx_nic *efx = efx_netdev_priv(net_dev);
1132 
1133 	if (efx_filter_get_rx_id_limit(efx) == 0)
1134 		return -EOPNOTSUPP;
1135 
1136 	switch (info->cmd) {
1137 	case ETHTOOL_SRXCLSRLINS:
1138 		return efx_ethtool_set_class_rule(efx, &info->fs,
1139 						  info->rss_context);
1140 
1141 	case ETHTOOL_SRXCLSRLDEL:
1142 		return efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_MANUAL,
1143 						 info->fs.location);
1144 
1145 	default:
1146 		return -EOPNOTSUPP;
1147 	}
1148 }
1149 
1150 u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev)
1151 {
1152 	struct efx_nic *efx = efx_netdev_priv(net_dev);
1153 
1154 	if (efx->n_rx_channels == 1)
1155 		return 0;
1156 	return ARRAY_SIZE(efx->rss_context.rx_indir_table);
1157 }
1158 
1159 u32 efx_ethtool_get_rxfh_key_size(struct net_device *net_dev)
1160 {
1161 	struct efx_nic *efx = efx_netdev_priv(net_dev);
1162 
1163 	return efx->type->rx_hash_key_size;
1164 }
1165 
1166 int efx_ethtool_get_rxfh(struct net_device *net_dev, u32 *indir, u8 *key,
1167 			 u8 *hfunc)
1168 {
1169 	struct efx_nic *efx = efx_netdev_priv(net_dev);
1170 	int rc;
1171 
1172 	rc = efx->type->rx_pull_rss_config(efx);
1173 	if (rc)
1174 		return rc;
1175 
1176 	if (hfunc)
1177 		*hfunc = ETH_RSS_HASH_TOP;
1178 	if (indir)
1179 		memcpy(indir, efx->rss_context.rx_indir_table,
1180 		       sizeof(efx->rss_context.rx_indir_table));
1181 	if (key)
1182 		memcpy(key, efx->rss_context.rx_hash_key,
1183 		       efx->type->rx_hash_key_size);
1184 	return 0;
1185 }
1186 
1187 int efx_ethtool_set_rxfh(struct net_device *net_dev, const u32 *indir,
1188 			 const u8 *key, const u8 hfunc)
1189 {
1190 	struct efx_nic *efx = efx_netdev_priv(net_dev);
1191 
1192 	/* Hash function is Toeplitz, cannot be changed */
1193 	if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
1194 		return -EOPNOTSUPP;
1195 	if (!indir && !key)
1196 		return 0;
1197 
1198 	if (!key)
1199 		key = efx->rss_context.rx_hash_key;
1200 	if (!indir)
1201 		indir = efx->rss_context.rx_indir_table;
1202 
1203 	return efx->type->rx_push_rss_config(efx, true, indir, key);
1204 }
1205 
1206 int efx_ethtool_get_rxfh_context(struct net_device *net_dev, u32 *indir,
1207 				 u8 *key, u8 *hfunc, u32 rss_context)
1208 {
1209 	struct efx_nic *efx = efx_netdev_priv(net_dev);
1210 	struct efx_rss_context *ctx;
1211 	int rc = 0;
1212 
1213 	if (!efx->type->rx_pull_rss_context_config)
1214 		return -EOPNOTSUPP;
1215 
1216 	mutex_lock(&efx->rss_lock);
1217 	ctx = efx_find_rss_context_entry(efx, rss_context);
1218 	if (!ctx) {
1219 		rc = -ENOENT;
1220 		goto out_unlock;
1221 	}
1222 	rc = efx->type->rx_pull_rss_context_config(efx, ctx);
1223 	if (rc)
1224 		goto out_unlock;
1225 
1226 	if (hfunc)
1227 		*hfunc = ETH_RSS_HASH_TOP;
1228 	if (indir)
1229 		memcpy(indir, ctx->rx_indir_table, sizeof(ctx->rx_indir_table));
1230 	if (key)
1231 		memcpy(key, ctx->rx_hash_key, efx->type->rx_hash_key_size);
1232 out_unlock:
1233 	mutex_unlock(&efx->rss_lock);
1234 	return rc;
1235 }
1236 
1237 int efx_ethtool_set_rxfh_context(struct net_device *net_dev,
1238 				 const u32 *indir, const u8 *key,
1239 				 const u8 hfunc, u32 *rss_context,
1240 				 bool delete)
1241 {
1242 	struct efx_nic *efx = efx_netdev_priv(net_dev);
1243 	struct efx_rss_context *ctx;
1244 	bool allocated = false;
1245 	int rc;
1246 
1247 	if (!efx->type->rx_push_rss_context_config)
1248 		return -EOPNOTSUPP;
1249 	/* Hash function is Toeplitz, cannot be changed */
1250 	if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
1251 		return -EOPNOTSUPP;
1252 
1253 	mutex_lock(&efx->rss_lock);
1254 
1255 	if (*rss_context == ETH_RXFH_CONTEXT_ALLOC) {
1256 		if (delete) {
1257 			/* alloc + delete == Nothing to do */
1258 			rc = -EINVAL;
1259 			goto out_unlock;
1260 		}
1261 		ctx = efx_alloc_rss_context_entry(efx);
1262 		if (!ctx) {
1263 			rc = -ENOMEM;
1264 			goto out_unlock;
1265 		}
1266 		ctx->context_id = EFX_MCDI_RSS_CONTEXT_INVALID;
1267 		/* Initialise indir table and key to defaults */
1268 		efx_set_default_rx_indir_table(efx, ctx);
1269 		netdev_rss_key_fill(ctx->rx_hash_key, sizeof(ctx->rx_hash_key));
1270 		allocated = true;
1271 	} else {
1272 		ctx = efx_find_rss_context_entry(efx, *rss_context);
1273 		if (!ctx) {
1274 			rc = -ENOENT;
1275 			goto out_unlock;
1276 		}
1277 	}
1278 
1279 	if (delete) {
1280 		/* delete this context */
1281 		rc = efx->type->rx_push_rss_context_config(efx, ctx, NULL, NULL);
1282 		if (!rc)
1283 			efx_free_rss_context_entry(ctx);
1284 		goto out_unlock;
1285 	}
1286 
1287 	if (!key)
1288 		key = ctx->rx_hash_key;
1289 	if (!indir)
1290 		indir = ctx->rx_indir_table;
1291 
1292 	rc = efx->type->rx_push_rss_context_config(efx, ctx, indir, key);
1293 	if (rc && allocated)
1294 		efx_free_rss_context_entry(ctx);
1295 	else
1296 		*rss_context = ctx->user_id;
1297 out_unlock:
1298 	mutex_unlock(&efx->rss_lock);
1299 	return rc;
1300 }
1301 
1302 int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
1303 {
1304 	struct efx_nic *efx = efx_netdev_priv(net_dev);
1305 	int rc;
1306 
1307 	rc = efx->type->map_reset_flags(flags);
1308 	if (rc < 0)
1309 		return rc;
1310 
1311 	return efx_reset(efx, rc);
1312 }
1313 
1314 int efx_ethtool_get_module_eeprom(struct net_device *net_dev,
1315 				  struct ethtool_eeprom *ee,
1316 				  u8 *data)
1317 {
1318 	struct efx_nic *efx = efx_netdev_priv(net_dev);
1319 	int ret;
1320 
1321 	mutex_lock(&efx->mac_lock);
1322 	ret = efx_mcdi_phy_get_module_eeprom(efx, ee, data);
1323 	mutex_unlock(&efx->mac_lock);
1324 
1325 	return ret;
1326 }
1327 
1328 int efx_ethtool_get_module_info(struct net_device *net_dev,
1329 				struct ethtool_modinfo *modinfo)
1330 {
1331 	struct efx_nic *efx = efx_netdev_priv(net_dev);
1332 	int ret;
1333 
1334 	mutex_lock(&efx->mac_lock);
1335 	ret = efx_mcdi_phy_get_module_info(efx, modinfo);
1336 	mutex_unlock(&efx->mac_lock);
1337 
1338 	return ret;
1339 }
1340