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 #ifdef CONFIG_RFS_ACCEL
95 	EFX_ETHTOOL_UINT_CHANNEL_STAT_NO_N(rfs_filter_count),
96 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rfs_succeeded),
97 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rfs_failed),
98 #endif
99 };
100 
101 #define EFX_ETHTOOL_SW_STAT_COUNT ARRAY_SIZE(efx_sw_stat_desc)
102 
103 void efx_ethtool_get_drvinfo(struct net_device *net_dev,
104 			     struct ethtool_drvinfo *info)
105 {
106 	struct efx_nic *efx = netdev_priv(net_dev);
107 
108 	strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
109 	efx_mcdi_print_fwver(efx, info->fw_version,
110 			     sizeof(info->fw_version));
111 	strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
112 }
113 
114 u32 efx_ethtool_get_msglevel(struct net_device *net_dev)
115 {
116 	struct efx_nic *efx = netdev_priv(net_dev);
117 
118 	return efx->msg_enable;
119 }
120 
121 void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
122 {
123 	struct efx_nic *efx = netdev_priv(net_dev);
124 
125 	efx->msg_enable = msg_enable;
126 }
127 
128 void efx_ethtool_self_test(struct net_device *net_dev,
129 			   struct ethtool_test *test, u64 *data)
130 {
131 	struct efx_nic *efx = netdev_priv(net_dev);
132 	struct efx_self_tests *efx_tests;
133 	bool already_up;
134 	int rc = -ENOMEM;
135 
136 	efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL);
137 	if (!efx_tests)
138 		goto fail;
139 
140 	if (efx->state != STATE_READY) {
141 		rc = -EBUSY;
142 		goto out;
143 	}
144 
145 	netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
146 		   (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
147 
148 	/* We need rx buffers and interrupts. */
149 	already_up = (efx->net_dev->flags & IFF_UP);
150 	if (!already_up) {
151 		rc = dev_open(efx->net_dev, NULL);
152 		if (rc) {
153 			netif_err(efx, drv, efx->net_dev,
154 				  "failed opening device.\n");
155 			goto out;
156 		}
157 	}
158 
159 	rc = efx_selftest(efx, efx_tests, test->flags);
160 
161 	if (!already_up)
162 		dev_close(efx->net_dev);
163 
164 	netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
165 		   rc == 0 ? "passed" : "failed",
166 		   (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
167 
168 out:
169 	efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data);
170 	kfree(efx_tests);
171 fail:
172 	if (rc)
173 		test->flags |= ETH_TEST_FL_FAILED;
174 }
175 
176 void efx_ethtool_get_pauseparam(struct net_device *net_dev,
177 				struct ethtool_pauseparam *pause)
178 {
179 	struct efx_nic *efx = netdev_priv(net_dev);
180 
181 	pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
182 	pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
183 	pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
184 }
185 
186 int efx_ethtool_set_pauseparam(struct net_device *net_dev,
187 			       struct ethtool_pauseparam *pause)
188 {
189 	struct efx_nic *efx = netdev_priv(net_dev);
190 	u8 wanted_fc, old_fc;
191 	u32 old_adv;
192 	int rc = 0;
193 
194 	mutex_lock(&efx->mac_lock);
195 
196 	wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
197 		     (pause->tx_pause ? EFX_FC_TX : 0) |
198 		     (pause->autoneg ? EFX_FC_AUTO : 0));
199 
200 	if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
201 		netif_dbg(efx, drv, efx->net_dev,
202 			  "Flow control unsupported: tx ON rx OFF\n");
203 		rc = -EINVAL;
204 		goto out;
205 	}
206 
207 	if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising[0]) {
208 		netif_dbg(efx, drv, efx->net_dev,
209 			  "Autonegotiation is disabled\n");
210 		rc = -EINVAL;
211 		goto out;
212 	}
213 
214 	/* Hook for Falcon bug 11482 workaround */
215 	if (efx->type->prepare_enable_fc_tx &&
216 	    (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX))
217 		efx->type->prepare_enable_fc_tx(efx);
218 
219 	old_adv = efx->link_advertising[0];
220 	old_fc = efx->wanted_fc;
221 	efx_link_set_wanted_fc(efx, wanted_fc);
222 	if (efx->link_advertising[0] != old_adv ||
223 	    (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
224 		rc = efx_mcdi_port_reconfigure(efx);
225 		if (rc) {
226 			netif_err(efx, drv, efx->net_dev,
227 				  "Unable to advertise requested flow "
228 				  "control setting\n");
229 			goto out;
230 		}
231 	}
232 
233 	/* Reconfigure the MAC. The PHY *may* generate a link state change event
234 	 * if the user just changed the advertised capabilities, but there's no
235 	 * harm doing this twice */
236 	efx_mac_reconfigure(efx, false);
237 
238 out:
239 	mutex_unlock(&efx->mac_lock);
240 
241 	return rc;
242 }
243 
244 /**
245  * efx_fill_test - fill in an individual self-test entry
246  * @test_index:		Index of the test
247  * @strings:		Ethtool strings, or %NULL
248  * @data:		Ethtool test results, or %NULL
249  * @test:		Pointer to test result (used only if data != %NULL)
250  * @unit_format:	Unit name format (e.g. "chan\%d")
251  * @unit_id:		Unit id (e.g. 0 for "chan0")
252  * @test_format:	Test name format (e.g. "loopback.\%s.tx.sent")
253  * @test_id:		Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
254  *
255  * Fill in an individual self-test entry.
256  */
257 static void efx_fill_test(unsigned int test_index, u8 *strings, u64 *data,
258 			  int *test, const char *unit_format, int unit_id,
259 			  const char *test_format, const char *test_id)
260 {
261 	char unit_str[ETH_GSTRING_LEN], test_str[ETH_GSTRING_LEN];
262 
263 	/* Fill data value, if applicable */
264 	if (data)
265 		data[test_index] = *test;
266 
267 	/* Fill string, if applicable */
268 	if (strings) {
269 		if (strchr(unit_format, '%'))
270 			snprintf(unit_str, sizeof(unit_str),
271 				 unit_format, unit_id);
272 		else
273 			strcpy(unit_str, unit_format);
274 		snprintf(test_str, sizeof(test_str), test_format, test_id);
275 		snprintf(strings + test_index * ETH_GSTRING_LEN,
276 			 ETH_GSTRING_LEN,
277 			 "%-6s %-24s", unit_str, test_str);
278 	}
279 }
280 
281 #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
282 #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->label
283 #define EFX_LOOPBACK_NAME(_mode, _counter)			\
284 	"loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
285 
286 /**
287  * efx_fill_loopback_test - fill in a block of loopback self-test entries
288  * @efx:		Efx NIC
289  * @lb_tests:		Efx loopback self-test results structure
290  * @mode:		Loopback test mode
291  * @test_index:		Starting index of the test
292  * @strings:		Ethtool strings, or %NULL
293  * @data:		Ethtool test results, or %NULL
294  *
295  * Fill in a block of loopback self-test entries.  Return new test
296  * index.
297  */
298 static int efx_fill_loopback_test(struct efx_nic *efx,
299 				  struct efx_loopback_self_tests *lb_tests,
300 				  enum efx_loopback_mode mode,
301 				  unsigned int test_index,
302 				  u8 *strings, u64 *data)
303 {
304 	struct efx_channel *channel =
305 		efx_get_channel(efx, efx->tx_channel_offset);
306 	struct efx_tx_queue *tx_queue;
307 
308 	efx_for_each_channel_tx_queue(tx_queue, channel) {
309 		efx_fill_test(test_index++, strings, data,
310 			      &lb_tests->tx_sent[tx_queue->label],
311 			      EFX_TX_QUEUE_NAME(tx_queue),
312 			      EFX_LOOPBACK_NAME(mode, "tx_sent"));
313 		efx_fill_test(test_index++, strings, data,
314 			      &lb_tests->tx_done[tx_queue->label],
315 			      EFX_TX_QUEUE_NAME(tx_queue),
316 			      EFX_LOOPBACK_NAME(mode, "tx_done"));
317 	}
318 	efx_fill_test(test_index++, strings, data,
319 		      &lb_tests->rx_good,
320 		      "rx", 0,
321 		      EFX_LOOPBACK_NAME(mode, "rx_good"));
322 	efx_fill_test(test_index++, strings, data,
323 		      &lb_tests->rx_bad,
324 		      "rx", 0,
325 		      EFX_LOOPBACK_NAME(mode, "rx_bad"));
326 
327 	return test_index;
328 }
329 
330 /**
331  * efx_ethtool_fill_self_tests - get self-test details
332  * @efx:		Efx NIC
333  * @tests:		Efx self-test results structure, or %NULL
334  * @strings:		Ethtool strings, or %NULL
335  * @data:		Ethtool test results, or %NULL
336  *
337  * Get self-test number of strings, strings, and/or test results.
338  * Return number of strings (== number of test results).
339  *
340  * The reason for merging these three functions is to make sure that
341  * they can never be inconsistent.
342  */
343 int efx_ethtool_fill_self_tests(struct efx_nic *efx,
344 				struct efx_self_tests *tests,
345 				u8 *strings, u64 *data)
346 {
347 	struct efx_channel *channel;
348 	unsigned int n = 0, i;
349 	enum efx_loopback_mode mode;
350 
351 	efx_fill_test(n++, strings, data, &tests->phy_alive,
352 		      "phy", 0, "alive", NULL);
353 	efx_fill_test(n++, strings, data, &tests->nvram,
354 		      "core", 0, "nvram", NULL);
355 	efx_fill_test(n++, strings, data, &tests->interrupt,
356 		      "core", 0, "interrupt", NULL);
357 
358 	/* Event queues */
359 	efx_for_each_channel(channel, efx) {
360 		efx_fill_test(n++, strings, data,
361 			      &tests->eventq_dma[channel->channel],
362 			      EFX_CHANNEL_NAME(channel),
363 			      "eventq.dma", NULL);
364 		efx_fill_test(n++, strings, data,
365 			      &tests->eventq_int[channel->channel],
366 			      EFX_CHANNEL_NAME(channel),
367 			      "eventq.int", NULL);
368 	}
369 
370 	efx_fill_test(n++, strings, data, &tests->memory,
371 		      "core", 0, "memory", NULL);
372 	efx_fill_test(n++, strings, data, &tests->registers,
373 		      "core", 0, "registers", NULL);
374 
375 	for (i = 0; true; ++i) {
376 		const char *name;
377 
378 		EFX_WARN_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
379 		name = efx_mcdi_phy_test_name(efx, i);
380 		if (name == NULL)
381 			break;
382 
383 		efx_fill_test(n++, strings, data, &tests->phy_ext[i], "phy", 0, name, NULL);
384 	}
385 
386 	/* Loopback tests */
387 	for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
388 		if (!(efx->loopback_modes & (1 << mode)))
389 			continue;
390 		n = efx_fill_loopback_test(efx,
391 					   &tests->loopback[mode], mode, n,
392 					   strings, data);
393 	}
394 
395 	return n;
396 }
397 
398 static size_t efx_describe_per_queue_stats(struct efx_nic *efx, u8 *strings)
399 {
400 	size_t n_stats = 0;
401 	struct efx_channel *channel;
402 
403 	efx_for_each_channel(channel, efx) {
404 		if (efx_channel_has_tx_queues(channel)) {
405 			n_stats++;
406 			if (strings != NULL) {
407 				snprintf(strings, ETH_GSTRING_LEN,
408 					 "tx-%u.tx_packets",
409 					 channel->tx_queue[0].queue /
410 					 EFX_MAX_TXQ_PER_CHANNEL);
411 
412 				strings += ETH_GSTRING_LEN;
413 			}
414 		}
415 	}
416 	efx_for_each_channel(channel, efx) {
417 		if (efx_channel_has_rx_queue(channel)) {
418 			n_stats++;
419 			if (strings != NULL) {
420 				snprintf(strings, ETH_GSTRING_LEN,
421 					 "rx-%d.rx_packets", channel->channel);
422 				strings += ETH_GSTRING_LEN;
423 			}
424 		}
425 	}
426 	if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) {
427 		unsigned short xdp;
428 
429 		for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) {
430 			n_stats++;
431 			if (strings) {
432 				snprintf(strings, ETH_GSTRING_LEN,
433 					 "tx-xdp-cpu-%hu.tx_packets", xdp);
434 				strings += ETH_GSTRING_LEN;
435 			}
436 		}
437 	}
438 
439 	return n_stats;
440 }
441 
442 int efx_ethtool_get_sset_count(struct net_device *net_dev, int string_set)
443 {
444 	struct efx_nic *efx = netdev_priv(net_dev);
445 
446 	switch (string_set) {
447 	case ETH_SS_STATS:
448 		return efx->type->describe_stats(efx, NULL) +
449 		       EFX_ETHTOOL_SW_STAT_COUNT +
450 		       efx_describe_per_queue_stats(efx, NULL) +
451 		       efx_ptp_describe_stats(efx, NULL);
452 	case ETH_SS_TEST:
453 		return efx_ethtool_fill_self_tests(efx, NULL, NULL, NULL);
454 	default:
455 		return -EINVAL;
456 	}
457 }
458 
459 void efx_ethtool_get_strings(struct net_device *net_dev,
460 			     u32 string_set, u8 *strings)
461 {
462 	struct efx_nic *efx = netdev_priv(net_dev);
463 	int i;
464 
465 	switch (string_set) {
466 	case ETH_SS_STATS:
467 		strings += (efx->type->describe_stats(efx, strings) *
468 			    ETH_GSTRING_LEN);
469 		for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++)
470 			strlcpy(strings + i * ETH_GSTRING_LEN,
471 				efx_sw_stat_desc[i].name, ETH_GSTRING_LEN);
472 		strings += EFX_ETHTOOL_SW_STAT_COUNT * ETH_GSTRING_LEN;
473 		strings += (efx_describe_per_queue_stats(efx, strings) *
474 			    ETH_GSTRING_LEN);
475 		efx_ptp_describe_stats(efx, strings);
476 		break;
477 	case ETH_SS_TEST:
478 		efx_ethtool_fill_self_tests(efx, NULL, strings, NULL);
479 		break;
480 	default:
481 		/* No other string sets */
482 		break;
483 	}
484 }
485 
486 void efx_ethtool_get_stats(struct net_device *net_dev,
487 			   struct ethtool_stats *stats,
488 			   u64 *data)
489 {
490 	struct efx_nic *efx = netdev_priv(net_dev);
491 	const struct efx_sw_stat_desc *stat;
492 	struct efx_channel *channel;
493 	struct efx_tx_queue *tx_queue;
494 	struct efx_rx_queue *rx_queue;
495 	int i;
496 
497 	spin_lock_bh(&efx->stats_lock);
498 
499 	/* Get NIC statistics */
500 	data += efx->type->update_stats(efx, data, NULL);
501 
502 	/* Get software statistics */
503 	for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) {
504 		stat = &efx_sw_stat_desc[i];
505 		switch (stat->source) {
506 		case EFX_ETHTOOL_STAT_SOURCE_nic:
507 			data[i] = stat->get_stat((void *)efx + stat->offset);
508 			break;
509 		case EFX_ETHTOOL_STAT_SOURCE_channel:
510 			data[i] = 0;
511 			efx_for_each_channel(channel, efx)
512 				data[i] += stat->get_stat((void *)channel +
513 							  stat->offset);
514 			break;
515 		case EFX_ETHTOOL_STAT_SOURCE_tx_queue:
516 			data[i] = 0;
517 			efx_for_each_channel(channel, efx) {
518 				efx_for_each_channel_tx_queue(tx_queue, channel)
519 					data[i] +=
520 						stat->get_stat((void *)tx_queue
521 							       + stat->offset);
522 			}
523 			break;
524 		}
525 	}
526 	data += EFX_ETHTOOL_SW_STAT_COUNT;
527 
528 	spin_unlock_bh(&efx->stats_lock);
529 
530 	efx_for_each_channel(channel, efx) {
531 		if (efx_channel_has_tx_queues(channel)) {
532 			*data = 0;
533 			efx_for_each_channel_tx_queue(tx_queue, channel) {
534 				*data += tx_queue->tx_packets;
535 			}
536 			data++;
537 		}
538 	}
539 	efx_for_each_channel(channel, efx) {
540 		if (efx_channel_has_rx_queue(channel)) {
541 			*data = 0;
542 			efx_for_each_channel_rx_queue(rx_queue, channel) {
543 				*data += rx_queue->rx_packets;
544 			}
545 			data++;
546 		}
547 	}
548 	if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) {
549 		int xdp;
550 
551 		for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) {
552 			data[0] = efx->xdp_tx_queues[xdp]->tx_packets;
553 			data++;
554 		}
555 	}
556 
557 	efx_ptp_update_stats(efx, data);
558 }
559 
560 /* This must be called with rtnl_lock held. */
561 int efx_ethtool_get_link_ksettings(struct net_device *net_dev,
562 				   struct ethtool_link_ksettings *cmd)
563 {
564 	struct efx_nic *efx = netdev_priv(net_dev);
565 	struct efx_link_state *link_state = &efx->link_state;
566 	u32 supported;
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_convert_link_mode_to_legacy_u32(&supported,
574 						cmd->link_modes.supported);
575 
576 	supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
577 
578 	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
579 						supported);
580 
581 	if (LOOPBACK_INTERNAL(efx)) {
582 		cmd->base.speed = link_state->speed;
583 		cmd->base.duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
584 	}
585 
586 	return 0;
587 }
588 
589 /* This must be called with rtnl_lock held. */
590 int efx_ethtool_set_link_ksettings(struct net_device *net_dev,
591 				   const struct ethtool_link_ksettings *cmd)
592 {
593 	struct efx_nic *efx = netdev_priv(net_dev);
594 	int rc;
595 
596 	/* GMAC does not support 1000Mbps HD */
597 	if ((cmd->base.speed == SPEED_1000) &&
598 	    (cmd->base.duplex != DUPLEX_FULL)) {
599 		netif_dbg(efx, drv, efx->net_dev,
600 			  "rejecting unsupported 1000Mbps HD setting\n");
601 		return -EINVAL;
602 	}
603 
604 	mutex_lock(&efx->mac_lock);
605 	rc = efx_mcdi_phy_set_link_ksettings(efx, cmd);
606 	mutex_unlock(&efx->mac_lock);
607 	return rc;
608 }
609 
610 int efx_ethtool_get_fecparam(struct net_device *net_dev,
611 			     struct ethtool_fecparam *fecparam)
612 {
613 	struct efx_nic *efx = netdev_priv(net_dev);
614 	int rc;
615 
616 	mutex_lock(&efx->mac_lock);
617 	rc = efx_mcdi_phy_get_fecparam(efx, fecparam);
618 	mutex_unlock(&efx->mac_lock);
619 
620 	return rc;
621 }
622 
623 int efx_ethtool_set_fecparam(struct net_device *net_dev,
624 			     struct ethtool_fecparam *fecparam)
625 {
626 	struct efx_nic *efx = netdev_priv(net_dev);
627 	int rc;
628 
629 	mutex_lock(&efx->mac_lock);
630 	rc = efx_mcdi_phy_set_fecparam(efx, fecparam);
631 	mutex_unlock(&efx->mac_lock);
632 
633 	return rc;
634 }
635 
636 /* MAC address mask including only I/G bit */
637 static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = {0x01, 0, 0, 0, 0, 0};
638 
639 #define IP4_ADDR_FULL_MASK	((__force __be32)~0)
640 #define IP_PROTO_FULL_MASK	0xFF
641 #define PORT_FULL_MASK		((__force __be16)~0)
642 #define ETHER_TYPE_FULL_MASK	((__force __be16)~0)
643 
644 static inline void ip6_fill_mask(__be32 *mask)
645 {
646 	mask[0] = mask[1] = mask[2] = mask[3] = ~(__be32)0;
647 }
648 
649 static int efx_ethtool_get_class_rule(struct efx_nic *efx,
650 				      struct ethtool_rx_flow_spec *rule,
651 				      u32 *rss_context)
652 {
653 	struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
654 	struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
655 	struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
656 	struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
657 	struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
658 	struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
659 	struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
660 	struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
661 	struct ethhdr *mac_entry = &rule->h_u.ether_spec;
662 	struct ethhdr *mac_mask = &rule->m_u.ether_spec;
663 	struct efx_filter_spec spec;
664 	int rc;
665 
666 	rc = efx_filter_get_filter_safe(efx, EFX_FILTER_PRI_MANUAL,
667 					rule->location, &spec);
668 	if (rc)
669 		return rc;
670 
671 	if (spec.dmaq_id == EFX_FILTER_RX_DMAQ_ID_DROP)
672 		rule->ring_cookie = RX_CLS_FLOW_DISC;
673 	else
674 		rule->ring_cookie = spec.dmaq_id;
675 
676 	if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) &&
677 	    spec.ether_type == htons(ETH_P_IP) &&
678 	    (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) &&
679 	    (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
680 	    !(spec.match_flags &
681 	      ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
682 		EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
683 		EFX_FILTER_MATCH_IP_PROTO |
684 		EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) {
685 		rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
686 				   TCP_V4_FLOW : UDP_V4_FLOW);
687 		if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
688 			ip_entry->ip4dst = spec.loc_host[0];
689 			ip_mask->ip4dst = IP4_ADDR_FULL_MASK;
690 		}
691 		if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
692 			ip_entry->ip4src = spec.rem_host[0];
693 			ip_mask->ip4src = IP4_ADDR_FULL_MASK;
694 		}
695 		if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) {
696 			ip_entry->pdst = spec.loc_port;
697 			ip_mask->pdst = PORT_FULL_MASK;
698 		}
699 		if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) {
700 			ip_entry->psrc = spec.rem_port;
701 			ip_mask->psrc = PORT_FULL_MASK;
702 		}
703 	} else if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) &&
704 	    spec.ether_type == htons(ETH_P_IPV6) &&
705 	    (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) &&
706 	    (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
707 	    !(spec.match_flags &
708 	      ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
709 		EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
710 		EFX_FILTER_MATCH_IP_PROTO |
711 		EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) {
712 		rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
713 				   TCP_V6_FLOW : UDP_V6_FLOW);
714 		if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
715 			memcpy(ip6_entry->ip6dst, spec.loc_host,
716 			       sizeof(ip6_entry->ip6dst));
717 			ip6_fill_mask(ip6_mask->ip6dst);
718 		}
719 		if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
720 			memcpy(ip6_entry->ip6src, spec.rem_host,
721 			       sizeof(ip6_entry->ip6src));
722 			ip6_fill_mask(ip6_mask->ip6src);
723 		}
724 		if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) {
725 			ip6_entry->pdst = spec.loc_port;
726 			ip6_mask->pdst = PORT_FULL_MASK;
727 		}
728 		if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) {
729 			ip6_entry->psrc = spec.rem_port;
730 			ip6_mask->psrc = PORT_FULL_MASK;
731 		}
732 	} else if (!(spec.match_flags &
733 		     ~(EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG |
734 		       EFX_FILTER_MATCH_REM_MAC | EFX_FILTER_MATCH_ETHER_TYPE |
735 		       EFX_FILTER_MATCH_OUTER_VID))) {
736 		rule->flow_type = ETHER_FLOW;
737 		if (spec.match_flags &
738 		    (EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG)) {
739 			ether_addr_copy(mac_entry->h_dest, spec.loc_mac);
740 			if (spec.match_flags & EFX_FILTER_MATCH_LOC_MAC)
741 				eth_broadcast_addr(mac_mask->h_dest);
742 			else
743 				ether_addr_copy(mac_mask->h_dest,
744 						mac_addr_ig_mask);
745 		}
746 		if (spec.match_flags & EFX_FILTER_MATCH_REM_MAC) {
747 			ether_addr_copy(mac_entry->h_source, spec.rem_mac);
748 			eth_broadcast_addr(mac_mask->h_source);
749 		}
750 		if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) {
751 			mac_entry->h_proto = spec.ether_type;
752 			mac_mask->h_proto = ETHER_TYPE_FULL_MASK;
753 		}
754 	} else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE &&
755 		   spec.ether_type == htons(ETH_P_IP) &&
756 		   !(spec.match_flags &
757 		     ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
758 		       EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
759 		       EFX_FILTER_MATCH_IP_PROTO))) {
760 		rule->flow_type = IPV4_USER_FLOW;
761 		uip_entry->ip_ver = ETH_RX_NFC_IP4;
762 		if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) {
763 			uip_mask->proto = IP_PROTO_FULL_MASK;
764 			uip_entry->proto = spec.ip_proto;
765 		}
766 		if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
767 			uip_entry->ip4dst = spec.loc_host[0];
768 			uip_mask->ip4dst = IP4_ADDR_FULL_MASK;
769 		}
770 		if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
771 			uip_entry->ip4src = spec.rem_host[0];
772 			uip_mask->ip4src = IP4_ADDR_FULL_MASK;
773 		}
774 	} else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE &&
775 		   spec.ether_type == htons(ETH_P_IPV6) &&
776 		   !(spec.match_flags &
777 		     ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
778 		       EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
779 		       EFX_FILTER_MATCH_IP_PROTO))) {
780 		rule->flow_type = IPV6_USER_FLOW;
781 		if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) {
782 			uip6_mask->l4_proto = IP_PROTO_FULL_MASK;
783 			uip6_entry->l4_proto = spec.ip_proto;
784 		}
785 		if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
786 			memcpy(uip6_entry->ip6dst, spec.loc_host,
787 			       sizeof(uip6_entry->ip6dst));
788 			ip6_fill_mask(uip6_mask->ip6dst);
789 		}
790 		if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
791 			memcpy(uip6_entry->ip6src, spec.rem_host,
792 			       sizeof(uip6_entry->ip6src));
793 			ip6_fill_mask(uip6_mask->ip6src);
794 		}
795 	} else {
796 		/* The above should handle all filters that we insert */
797 		WARN_ON(1);
798 		return -EINVAL;
799 	}
800 
801 	if (spec.match_flags & EFX_FILTER_MATCH_OUTER_VID) {
802 		rule->flow_type |= FLOW_EXT;
803 		rule->h_ext.vlan_tci = spec.outer_vid;
804 		rule->m_ext.vlan_tci = htons(0xfff);
805 	}
806 
807 	if (spec.flags & EFX_FILTER_FLAG_RX_RSS) {
808 		rule->flow_type |= FLOW_RSS;
809 		*rss_context = spec.rss_context;
810 	}
811 
812 	return rc;
813 }
814 
815 int efx_ethtool_get_rxnfc(struct net_device *net_dev,
816 			  struct ethtool_rxnfc *info, u32 *rule_locs)
817 {
818 	struct efx_nic *efx = netdev_priv(net_dev);
819 	u32 rss_context = 0;
820 	s32 rc = 0;
821 
822 	switch (info->cmd) {
823 	case ETHTOOL_GRXRINGS:
824 		info->data = efx->n_rx_channels;
825 		return 0;
826 
827 	case ETHTOOL_GRXFH: {
828 		struct efx_rss_context *ctx = &efx->rss_context;
829 		__u64 data;
830 
831 		mutex_lock(&efx->rss_lock);
832 		if (info->flow_type & FLOW_RSS && info->rss_context) {
833 			ctx = efx_find_rss_context_entry(efx, info->rss_context);
834 			if (!ctx) {
835 				rc = -ENOENT;
836 				goto out_unlock;
837 			}
838 		}
839 
840 		data = 0;
841 		if (!efx_rss_active(ctx)) /* No RSS */
842 			goto out_setdata_unlock;
843 
844 		switch (info->flow_type & ~FLOW_RSS) {
845 		case UDP_V4_FLOW:
846 		case UDP_V6_FLOW:
847 			if (ctx->rx_hash_udp_4tuple)
848 				data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 |
849 					RXH_IP_SRC | RXH_IP_DST);
850 			else
851 				data = RXH_IP_SRC | RXH_IP_DST;
852 			break;
853 		case TCP_V4_FLOW:
854 		case TCP_V6_FLOW:
855 			data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 |
856 				RXH_IP_SRC | RXH_IP_DST);
857 			break;
858 		case SCTP_V4_FLOW:
859 		case SCTP_V6_FLOW:
860 		case AH_ESP_V4_FLOW:
861 		case AH_ESP_V6_FLOW:
862 		case IPV4_FLOW:
863 		case IPV6_FLOW:
864 			data = RXH_IP_SRC | RXH_IP_DST;
865 			break;
866 		default:
867 			break;
868 		}
869 out_setdata_unlock:
870 		info->data = data;
871 out_unlock:
872 		mutex_unlock(&efx->rss_lock);
873 		return rc;
874 	}
875 
876 	case ETHTOOL_GRXCLSRLCNT:
877 		info->data = efx_filter_get_rx_id_limit(efx);
878 		if (info->data == 0)
879 			return -EOPNOTSUPP;
880 		info->data |= RX_CLS_LOC_SPECIAL;
881 		info->rule_cnt =
882 			efx_filter_count_rx_used(efx, EFX_FILTER_PRI_MANUAL);
883 		return 0;
884 
885 	case ETHTOOL_GRXCLSRULE:
886 		if (efx_filter_get_rx_id_limit(efx) == 0)
887 			return -EOPNOTSUPP;
888 		rc = efx_ethtool_get_class_rule(efx, &info->fs, &rss_context);
889 		if (rc < 0)
890 			return rc;
891 		if (info->fs.flow_type & FLOW_RSS)
892 			info->rss_context = rss_context;
893 		return 0;
894 
895 	case ETHTOOL_GRXCLSRLALL:
896 		info->data = efx_filter_get_rx_id_limit(efx);
897 		if (info->data == 0)
898 			return -EOPNOTSUPP;
899 		rc = efx_filter_get_rx_ids(efx, EFX_FILTER_PRI_MANUAL,
900 					   rule_locs, info->rule_cnt);
901 		if (rc < 0)
902 			return rc;
903 		info->rule_cnt = rc;
904 		return 0;
905 
906 	default:
907 		return -EOPNOTSUPP;
908 	}
909 }
910 
911 static inline bool ip6_mask_is_full(__be32 mask[4])
912 {
913 	return !~(mask[0] & mask[1] & mask[2] & mask[3]);
914 }
915 
916 static inline bool ip6_mask_is_empty(__be32 mask[4])
917 {
918 	return !(mask[0] | mask[1] | mask[2] | mask[3]);
919 }
920 
921 static int efx_ethtool_set_class_rule(struct efx_nic *efx,
922 				      struct ethtool_rx_flow_spec *rule,
923 				      u32 rss_context)
924 {
925 	struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
926 	struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
927 	struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
928 	struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
929 	struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
930 	struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
931 	struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
932 	struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
933 	u32 flow_type = rule->flow_type & ~(FLOW_EXT | FLOW_RSS);
934 	struct ethhdr *mac_entry = &rule->h_u.ether_spec;
935 	struct ethhdr *mac_mask = &rule->m_u.ether_spec;
936 	enum efx_filter_flags flags = 0;
937 	struct efx_filter_spec spec;
938 	int rc;
939 
940 	/* Check that user wants us to choose the location */
941 	if (rule->location != RX_CLS_LOC_ANY)
942 		return -EINVAL;
943 
944 	/* Range-check ring_cookie */
945 	if (rule->ring_cookie >= efx->n_rx_channels &&
946 	    rule->ring_cookie != RX_CLS_FLOW_DISC)
947 		return -EINVAL;
948 
949 	/* Check for unsupported extensions */
950 	if ((rule->flow_type & FLOW_EXT) &&
951 	    (rule->m_ext.vlan_etype || rule->m_ext.data[0] ||
952 	     rule->m_ext.data[1]))
953 		return -EINVAL;
954 
955 	if (efx->rx_scatter)
956 		flags |= EFX_FILTER_FLAG_RX_SCATTER;
957 	if (rule->flow_type & FLOW_RSS)
958 		flags |= EFX_FILTER_FLAG_RX_RSS;
959 
960 	efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL, flags,
961 			   (rule->ring_cookie == RX_CLS_FLOW_DISC) ?
962 			   EFX_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie);
963 
964 	if (rule->flow_type & FLOW_RSS)
965 		spec.rss_context = rss_context;
966 
967 	switch (flow_type) {
968 	case TCP_V4_FLOW:
969 	case UDP_V4_FLOW:
970 		spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE |
971 				    EFX_FILTER_MATCH_IP_PROTO);
972 		spec.ether_type = htons(ETH_P_IP);
973 		spec.ip_proto = flow_type == TCP_V4_FLOW ? IPPROTO_TCP
974 							 : IPPROTO_UDP;
975 		if (ip_mask->ip4dst) {
976 			if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK)
977 				return -EINVAL;
978 			spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
979 			spec.loc_host[0] = ip_entry->ip4dst;
980 		}
981 		if (ip_mask->ip4src) {
982 			if (ip_mask->ip4src != IP4_ADDR_FULL_MASK)
983 				return -EINVAL;
984 			spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
985 			spec.rem_host[0] = ip_entry->ip4src;
986 		}
987 		if (ip_mask->pdst) {
988 			if (ip_mask->pdst != PORT_FULL_MASK)
989 				return -EINVAL;
990 			spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT;
991 			spec.loc_port = ip_entry->pdst;
992 		}
993 		if (ip_mask->psrc) {
994 			if (ip_mask->psrc != PORT_FULL_MASK)
995 				return -EINVAL;
996 			spec.match_flags |= EFX_FILTER_MATCH_REM_PORT;
997 			spec.rem_port = ip_entry->psrc;
998 		}
999 		if (ip_mask->tos)
1000 			return -EINVAL;
1001 		break;
1002 
1003 	case TCP_V6_FLOW:
1004 	case UDP_V6_FLOW:
1005 		spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE |
1006 				    EFX_FILTER_MATCH_IP_PROTO);
1007 		spec.ether_type = htons(ETH_P_IPV6);
1008 		spec.ip_proto = flow_type == TCP_V6_FLOW ? IPPROTO_TCP
1009 							 : IPPROTO_UDP;
1010 		if (!ip6_mask_is_empty(ip6_mask->ip6dst)) {
1011 			if (!ip6_mask_is_full(ip6_mask->ip6dst))
1012 				return -EINVAL;
1013 			spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1014 			memcpy(spec.loc_host, ip6_entry->ip6dst, sizeof(spec.loc_host));
1015 		}
1016 		if (!ip6_mask_is_empty(ip6_mask->ip6src)) {
1017 			if (!ip6_mask_is_full(ip6_mask->ip6src))
1018 				return -EINVAL;
1019 			spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1020 			memcpy(spec.rem_host, ip6_entry->ip6src, sizeof(spec.rem_host));
1021 		}
1022 		if (ip6_mask->pdst) {
1023 			if (ip6_mask->pdst != PORT_FULL_MASK)
1024 				return -EINVAL;
1025 			spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT;
1026 			spec.loc_port = ip6_entry->pdst;
1027 		}
1028 		if (ip6_mask->psrc) {
1029 			if (ip6_mask->psrc != PORT_FULL_MASK)
1030 				return -EINVAL;
1031 			spec.match_flags |= EFX_FILTER_MATCH_REM_PORT;
1032 			spec.rem_port = ip6_entry->psrc;
1033 		}
1034 		if (ip6_mask->tclass)
1035 			return -EINVAL;
1036 		break;
1037 
1038 	case IPV4_USER_FLOW:
1039 		if (uip_mask->l4_4_bytes || uip_mask->tos || uip_mask->ip_ver ||
1040 		    uip_entry->ip_ver != ETH_RX_NFC_IP4)
1041 			return -EINVAL;
1042 		spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE;
1043 		spec.ether_type = htons(ETH_P_IP);
1044 		if (uip_mask->ip4dst) {
1045 			if (uip_mask->ip4dst != IP4_ADDR_FULL_MASK)
1046 				return -EINVAL;
1047 			spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1048 			spec.loc_host[0] = uip_entry->ip4dst;
1049 		}
1050 		if (uip_mask->ip4src) {
1051 			if (uip_mask->ip4src != IP4_ADDR_FULL_MASK)
1052 				return -EINVAL;
1053 			spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1054 			spec.rem_host[0] = uip_entry->ip4src;
1055 		}
1056 		if (uip_mask->proto) {
1057 			if (uip_mask->proto != IP_PROTO_FULL_MASK)
1058 				return -EINVAL;
1059 			spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO;
1060 			spec.ip_proto = uip_entry->proto;
1061 		}
1062 		break;
1063 
1064 	case IPV6_USER_FLOW:
1065 		if (uip6_mask->l4_4_bytes || uip6_mask->tclass)
1066 			return -EINVAL;
1067 		spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE;
1068 		spec.ether_type = htons(ETH_P_IPV6);
1069 		if (!ip6_mask_is_empty(uip6_mask->ip6dst)) {
1070 			if (!ip6_mask_is_full(uip6_mask->ip6dst))
1071 				return -EINVAL;
1072 			spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1073 			memcpy(spec.loc_host, uip6_entry->ip6dst, sizeof(spec.loc_host));
1074 		}
1075 		if (!ip6_mask_is_empty(uip6_mask->ip6src)) {
1076 			if (!ip6_mask_is_full(uip6_mask->ip6src))
1077 				return -EINVAL;
1078 			spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1079 			memcpy(spec.rem_host, uip6_entry->ip6src, sizeof(spec.rem_host));
1080 		}
1081 		if (uip6_mask->l4_proto) {
1082 			if (uip6_mask->l4_proto != IP_PROTO_FULL_MASK)
1083 				return -EINVAL;
1084 			spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO;
1085 			spec.ip_proto = uip6_entry->l4_proto;
1086 		}
1087 		break;
1088 
1089 	case ETHER_FLOW:
1090 		if (!is_zero_ether_addr(mac_mask->h_dest)) {
1091 			if (ether_addr_equal(mac_mask->h_dest,
1092 					     mac_addr_ig_mask))
1093 				spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC_IG;
1094 			else if (is_broadcast_ether_addr(mac_mask->h_dest))
1095 				spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC;
1096 			else
1097 				return -EINVAL;
1098 			ether_addr_copy(spec.loc_mac, mac_entry->h_dest);
1099 		}
1100 		if (!is_zero_ether_addr(mac_mask->h_source)) {
1101 			if (!is_broadcast_ether_addr(mac_mask->h_source))
1102 				return -EINVAL;
1103 			spec.match_flags |= EFX_FILTER_MATCH_REM_MAC;
1104 			ether_addr_copy(spec.rem_mac, mac_entry->h_source);
1105 		}
1106 		if (mac_mask->h_proto) {
1107 			if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK)
1108 				return -EINVAL;
1109 			spec.match_flags |= EFX_FILTER_MATCH_ETHER_TYPE;
1110 			spec.ether_type = mac_entry->h_proto;
1111 		}
1112 		break;
1113 
1114 	default:
1115 		return -EINVAL;
1116 	}
1117 
1118 	if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) {
1119 		if (rule->m_ext.vlan_tci != htons(0xfff))
1120 			return -EINVAL;
1121 		spec.match_flags |= EFX_FILTER_MATCH_OUTER_VID;
1122 		spec.outer_vid = rule->h_ext.vlan_tci;
1123 	}
1124 
1125 	rc = efx_filter_insert_filter(efx, &spec, true);
1126 	if (rc < 0)
1127 		return rc;
1128 
1129 	rule->location = rc;
1130 	return 0;
1131 }
1132 
1133 int efx_ethtool_set_rxnfc(struct net_device *net_dev,
1134 			  struct ethtool_rxnfc *info)
1135 {
1136 	struct efx_nic *efx = netdev_priv(net_dev);
1137 
1138 	if (efx_filter_get_rx_id_limit(efx) == 0)
1139 		return -EOPNOTSUPP;
1140 
1141 	switch (info->cmd) {
1142 	case ETHTOOL_SRXCLSRLINS:
1143 		return efx_ethtool_set_class_rule(efx, &info->fs,
1144 						  info->rss_context);
1145 
1146 	case ETHTOOL_SRXCLSRLDEL:
1147 		return efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_MANUAL,
1148 						 info->fs.location);
1149 
1150 	default:
1151 		return -EOPNOTSUPP;
1152 	}
1153 }
1154 
1155 u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev)
1156 {
1157 	struct efx_nic *efx = netdev_priv(net_dev);
1158 
1159 	if (efx->n_rx_channels == 1)
1160 		return 0;
1161 	return ARRAY_SIZE(efx->rss_context.rx_indir_table);
1162 }
1163 
1164 u32 efx_ethtool_get_rxfh_key_size(struct net_device *net_dev)
1165 {
1166 	struct efx_nic *efx = netdev_priv(net_dev);
1167 
1168 	return efx->type->rx_hash_key_size;
1169 }
1170 
1171 int efx_ethtool_get_rxfh(struct net_device *net_dev, u32 *indir, u8 *key,
1172 			 u8 *hfunc)
1173 {
1174 	struct efx_nic *efx = netdev_priv(net_dev);
1175 	int rc;
1176 
1177 	rc = efx->type->rx_pull_rss_config(efx);
1178 	if (rc)
1179 		return rc;
1180 
1181 	if (hfunc)
1182 		*hfunc = ETH_RSS_HASH_TOP;
1183 	if (indir)
1184 		memcpy(indir, efx->rss_context.rx_indir_table,
1185 		       sizeof(efx->rss_context.rx_indir_table));
1186 	if (key)
1187 		memcpy(key, efx->rss_context.rx_hash_key,
1188 		       efx->type->rx_hash_key_size);
1189 	return 0;
1190 }
1191 
1192 int efx_ethtool_set_rxfh(struct net_device *net_dev, const u32 *indir,
1193 			 const u8 *key, const u8 hfunc)
1194 {
1195 	struct efx_nic *efx = netdev_priv(net_dev);
1196 
1197 	/* Hash function is Toeplitz, cannot be changed */
1198 	if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
1199 		return -EOPNOTSUPP;
1200 	if (!indir && !key)
1201 		return 0;
1202 
1203 	if (!key)
1204 		key = efx->rss_context.rx_hash_key;
1205 	if (!indir)
1206 		indir = efx->rss_context.rx_indir_table;
1207 
1208 	return efx->type->rx_push_rss_config(efx, true, indir, key);
1209 }
1210 
1211 int efx_ethtool_get_rxfh_context(struct net_device *net_dev, u32 *indir,
1212 				 u8 *key, u8 *hfunc, u32 rss_context)
1213 {
1214 	struct efx_nic *efx = netdev_priv(net_dev);
1215 	struct efx_rss_context *ctx;
1216 	int rc = 0;
1217 
1218 	if (!efx->type->rx_pull_rss_context_config)
1219 		return -EOPNOTSUPP;
1220 
1221 	mutex_lock(&efx->rss_lock);
1222 	ctx = efx_find_rss_context_entry(efx, rss_context);
1223 	if (!ctx) {
1224 		rc = -ENOENT;
1225 		goto out_unlock;
1226 	}
1227 	rc = efx->type->rx_pull_rss_context_config(efx, ctx);
1228 	if (rc)
1229 		goto out_unlock;
1230 
1231 	if (hfunc)
1232 		*hfunc = ETH_RSS_HASH_TOP;
1233 	if (indir)
1234 		memcpy(indir, ctx->rx_indir_table, sizeof(ctx->rx_indir_table));
1235 	if (key)
1236 		memcpy(key, ctx->rx_hash_key, efx->type->rx_hash_key_size);
1237 out_unlock:
1238 	mutex_unlock(&efx->rss_lock);
1239 	return rc;
1240 }
1241 
1242 int efx_ethtool_set_rxfh_context(struct net_device *net_dev,
1243 				 const u32 *indir, const u8 *key,
1244 				 const u8 hfunc, u32 *rss_context,
1245 				 bool delete)
1246 {
1247 	struct efx_nic *efx = netdev_priv(net_dev);
1248 	struct efx_rss_context *ctx;
1249 	bool allocated = false;
1250 	int rc;
1251 
1252 	if (!efx->type->rx_push_rss_context_config)
1253 		return -EOPNOTSUPP;
1254 	/* Hash function is Toeplitz, cannot be changed */
1255 	if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
1256 		return -EOPNOTSUPP;
1257 
1258 	mutex_lock(&efx->rss_lock);
1259 
1260 	if (*rss_context == ETH_RXFH_CONTEXT_ALLOC) {
1261 		if (delete) {
1262 			/* alloc + delete == Nothing to do */
1263 			rc = -EINVAL;
1264 			goto out_unlock;
1265 		}
1266 		ctx = efx_alloc_rss_context_entry(efx);
1267 		if (!ctx) {
1268 			rc = -ENOMEM;
1269 			goto out_unlock;
1270 		}
1271 		ctx->context_id = EFX_MCDI_RSS_CONTEXT_INVALID;
1272 		/* Initialise indir table and key to defaults */
1273 		efx_set_default_rx_indir_table(efx, ctx);
1274 		netdev_rss_key_fill(ctx->rx_hash_key, sizeof(ctx->rx_hash_key));
1275 		allocated = true;
1276 	} else {
1277 		ctx = efx_find_rss_context_entry(efx, *rss_context);
1278 		if (!ctx) {
1279 			rc = -ENOENT;
1280 			goto out_unlock;
1281 		}
1282 	}
1283 
1284 	if (delete) {
1285 		/* delete this context */
1286 		rc = efx->type->rx_push_rss_context_config(efx, ctx, NULL, NULL);
1287 		if (!rc)
1288 			efx_free_rss_context_entry(ctx);
1289 		goto out_unlock;
1290 	}
1291 
1292 	if (!key)
1293 		key = ctx->rx_hash_key;
1294 	if (!indir)
1295 		indir = ctx->rx_indir_table;
1296 
1297 	rc = efx->type->rx_push_rss_context_config(efx, ctx, indir, key);
1298 	if (rc && allocated)
1299 		efx_free_rss_context_entry(ctx);
1300 	else
1301 		*rss_context = ctx->user_id;
1302 out_unlock:
1303 	mutex_unlock(&efx->rss_lock);
1304 	return rc;
1305 }
1306 
1307 int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
1308 {
1309 	struct efx_nic *efx = netdev_priv(net_dev);
1310 	int rc;
1311 
1312 	rc = efx->type->map_reset_flags(flags);
1313 	if (rc < 0)
1314 		return rc;
1315 
1316 	return efx_reset(efx, rc);
1317 }
1318 
1319 int efx_ethtool_get_module_eeprom(struct net_device *net_dev,
1320 				  struct ethtool_eeprom *ee,
1321 				  u8 *data)
1322 {
1323 	struct efx_nic *efx = netdev_priv(net_dev);
1324 	int ret;
1325 
1326 	mutex_lock(&efx->mac_lock);
1327 	ret = efx_mcdi_phy_get_module_eeprom(efx, ee, data);
1328 	mutex_unlock(&efx->mac_lock);
1329 
1330 	return ret;
1331 }
1332 
1333 int efx_ethtool_get_module_info(struct net_device *net_dev,
1334 				struct ethtool_modinfo *modinfo)
1335 {
1336 	struct efx_nic *efx = netdev_priv(net_dev);
1337 	int ret;
1338 
1339 	mutex_lock(&efx->mac_lock);
1340 	ret = efx_mcdi_phy_get_module_info(efx, modinfo);
1341 	mutex_unlock(&efx->mac_lock);
1342 
1343 	return ret;
1344 }
1345