1 /****************************************************************************
2  * Driver for Solarflare Solarstorm network controllers and boards
3  * Copyright 2005-2006 Fen Systems Ltd.
4  * Copyright 2006-2010 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 
11 #include <linux/netdevice.h>
12 #include <linux/ethtool.h>
13 #include <linux/rtnetlink.h>
14 #include <linux/in.h>
15 #include "net_driver.h"
16 #include "workarounds.h"
17 #include "selftest.h"
18 #include "efx.h"
19 #include "filter.h"
20 #include "nic.h"
21 
22 struct ethtool_string {
23 	char name[ETH_GSTRING_LEN];
24 };
25 
26 struct efx_ethtool_stat {
27 	const char *name;
28 	enum {
29 		EFX_ETHTOOL_STAT_SOURCE_mac_stats,
30 		EFX_ETHTOOL_STAT_SOURCE_nic,
31 		EFX_ETHTOOL_STAT_SOURCE_channel,
32 		EFX_ETHTOOL_STAT_SOURCE_tx_queue
33 	} source;
34 	unsigned offset;
35 	u64(*get_stat) (void *field); /* Reader function */
36 };
37 
38 /* Initialiser for a struct #efx_ethtool_stat with type-checking */
39 #define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
40 				get_stat_function) {			\
41 	.name = #stat_name,						\
42 	.source = EFX_ETHTOOL_STAT_SOURCE_##source_name,		\
43 	.offset = ((((field_type *) 0) ==				\
44 		      &((struct efx_##source_name *)0)->field) ?	\
45 		    offsetof(struct efx_##source_name, field) :		\
46 		    offsetof(struct efx_##source_name, field)),		\
47 	.get_stat = get_stat_function,					\
48 }
49 
efx_get_uint_stat(void * field)50 static u64 efx_get_uint_stat(void *field)
51 {
52 	return *(unsigned int *)field;
53 }
54 
efx_get_u64_stat(void * field)55 static u64 efx_get_u64_stat(void *field)
56 {
57 	return *(u64 *) field;
58 }
59 
efx_get_atomic_stat(void * field)60 static u64 efx_get_atomic_stat(void *field)
61 {
62 	return atomic_read((atomic_t *) field);
63 }
64 
65 #define EFX_ETHTOOL_U64_MAC_STAT(field)				\
66 	EFX_ETHTOOL_STAT(field, mac_stats, field,		\
67 			  u64, efx_get_u64_stat)
68 
69 #define EFX_ETHTOOL_UINT_NIC_STAT(name)				\
70 	EFX_ETHTOOL_STAT(name, nic, n_##name,			\
71 			 unsigned int, efx_get_uint_stat)
72 
73 #define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field)		\
74 	EFX_ETHTOOL_STAT(field, nic, field,			\
75 			 atomic_t, efx_get_atomic_stat)
76 
77 #define EFX_ETHTOOL_UINT_CHANNEL_STAT(field)			\
78 	EFX_ETHTOOL_STAT(field, channel, n_##field,		\
79 			 unsigned int, efx_get_uint_stat)
80 
81 #define EFX_ETHTOOL_UINT_TXQ_STAT(field)			\
82 	EFX_ETHTOOL_STAT(tx_##field, tx_queue, field,		\
83 			 unsigned int, efx_get_uint_stat)
84 
85 static const struct efx_ethtool_stat efx_ethtool_stats[] = {
86 	EFX_ETHTOOL_U64_MAC_STAT(tx_bytes),
87 	EFX_ETHTOOL_U64_MAC_STAT(tx_good_bytes),
88 	EFX_ETHTOOL_U64_MAC_STAT(tx_bad_bytes),
89 	EFX_ETHTOOL_U64_MAC_STAT(tx_packets),
90 	EFX_ETHTOOL_U64_MAC_STAT(tx_bad),
91 	EFX_ETHTOOL_U64_MAC_STAT(tx_pause),
92 	EFX_ETHTOOL_U64_MAC_STAT(tx_control),
93 	EFX_ETHTOOL_U64_MAC_STAT(tx_unicast),
94 	EFX_ETHTOOL_U64_MAC_STAT(tx_multicast),
95 	EFX_ETHTOOL_U64_MAC_STAT(tx_broadcast),
96 	EFX_ETHTOOL_U64_MAC_STAT(tx_lt64),
97 	EFX_ETHTOOL_U64_MAC_STAT(tx_64),
98 	EFX_ETHTOOL_U64_MAC_STAT(tx_65_to_127),
99 	EFX_ETHTOOL_U64_MAC_STAT(tx_128_to_255),
100 	EFX_ETHTOOL_U64_MAC_STAT(tx_256_to_511),
101 	EFX_ETHTOOL_U64_MAC_STAT(tx_512_to_1023),
102 	EFX_ETHTOOL_U64_MAC_STAT(tx_1024_to_15xx),
103 	EFX_ETHTOOL_U64_MAC_STAT(tx_15xx_to_jumbo),
104 	EFX_ETHTOOL_U64_MAC_STAT(tx_gtjumbo),
105 	EFX_ETHTOOL_U64_MAC_STAT(tx_collision),
106 	EFX_ETHTOOL_U64_MAC_STAT(tx_single_collision),
107 	EFX_ETHTOOL_U64_MAC_STAT(tx_multiple_collision),
108 	EFX_ETHTOOL_U64_MAC_STAT(tx_excessive_collision),
109 	EFX_ETHTOOL_U64_MAC_STAT(tx_deferred),
110 	EFX_ETHTOOL_U64_MAC_STAT(tx_late_collision),
111 	EFX_ETHTOOL_U64_MAC_STAT(tx_excessive_deferred),
112 	EFX_ETHTOOL_U64_MAC_STAT(tx_non_tcpudp),
113 	EFX_ETHTOOL_U64_MAC_STAT(tx_mac_src_error),
114 	EFX_ETHTOOL_U64_MAC_STAT(tx_ip_src_error),
115 	EFX_ETHTOOL_UINT_TXQ_STAT(tso_bursts),
116 	EFX_ETHTOOL_UINT_TXQ_STAT(tso_long_headers),
117 	EFX_ETHTOOL_UINT_TXQ_STAT(tso_packets),
118 	EFX_ETHTOOL_UINT_TXQ_STAT(pushes),
119 	EFX_ETHTOOL_U64_MAC_STAT(rx_bytes),
120 	EFX_ETHTOOL_U64_MAC_STAT(rx_good_bytes),
121 	EFX_ETHTOOL_U64_MAC_STAT(rx_bad_bytes),
122 	EFX_ETHTOOL_U64_MAC_STAT(rx_packets),
123 	EFX_ETHTOOL_U64_MAC_STAT(rx_good),
124 	EFX_ETHTOOL_U64_MAC_STAT(rx_bad),
125 	EFX_ETHTOOL_U64_MAC_STAT(rx_pause),
126 	EFX_ETHTOOL_U64_MAC_STAT(rx_control),
127 	EFX_ETHTOOL_U64_MAC_STAT(rx_unicast),
128 	EFX_ETHTOOL_U64_MAC_STAT(rx_multicast),
129 	EFX_ETHTOOL_U64_MAC_STAT(rx_broadcast),
130 	EFX_ETHTOOL_U64_MAC_STAT(rx_lt64),
131 	EFX_ETHTOOL_U64_MAC_STAT(rx_64),
132 	EFX_ETHTOOL_U64_MAC_STAT(rx_65_to_127),
133 	EFX_ETHTOOL_U64_MAC_STAT(rx_128_to_255),
134 	EFX_ETHTOOL_U64_MAC_STAT(rx_256_to_511),
135 	EFX_ETHTOOL_U64_MAC_STAT(rx_512_to_1023),
136 	EFX_ETHTOOL_U64_MAC_STAT(rx_1024_to_15xx),
137 	EFX_ETHTOOL_U64_MAC_STAT(rx_15xx_to_jumbo),
138 	EFX_ETHTOOL_U64_MAC_STAT(rx_gtjumbo),
139 	EFX_ETHTOOL_U64_MAC_STAT(rx_bad_lt64),
140 	EFX_ETHTOOL_U64_MAC_STAT(rx_bad_64_to_15xx),
141 	EFX_ETHTOOL_U64_MAC_STAT(rx_bad_15xx_to_jumbo),
142 	EFX_ETHTOOL_U64_MAC_STAT(rx_bad_gtjumbo),
143 	EFX_ETHTOOL_U64_MAC_STAT(rx_overflow),
144 	EFX_ETHTOOL_U64_MAC_STAT(rx_missed),
145 	EFX_ETHTOOL_U64_MAC_STAT(rx_false_carrier),
146 	EFX_ETHTOOL_U64_MAC_STAT(rx_symbol_error),
147 	EFX_ETHTOOL_U64_MAC_STAT(rx_align_error),
148 	EFX_ETHTOOL_U64_MAC_STAT(rx_length_error),
149 	EFX_ETHTOOL_U64_MAC_STAT(rx_internal_error),
150 	EFX_ETHTOOL_UINT_NIC_STAT(rx_nodesc_drop_cnt),
151 	EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
152 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
153 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
154 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
155 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
156 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
157 };
158 
159 /* Number of ethtool statistics */
160 #define EFX_ETHTOOL_NUM_STATS ARRAY_SIZE(efx_ethtool_stats)
161 
162 #define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
163 
164 /**************************************************************************
165  *
166  * Ethtool operations
167  *
168  **************************************************************************
169  */
170 
171 /* Identify device by flashing LEDs */
efx_ethtool_phys_id(struct net_device * net_dev,enum ethtool_phys_id_state state)172 static int efx_ethtool_phys_id(struct net_device *net_dev,
173 			       enum ethtool_phys_id_state state)
174 {
175 	struct efx_nic *efx = netdev_priv(net_dev);
176 	enum efx_led_mode mode = EFX_LED_DEFAULT;
177 
178 	switch (state) {
179 	case ETHTOOL_ID_ON:
180 		mode = EFX_LED_ON;
181 		break;
182 	case ETHTOOL_ID_OFF:
183 		mode = EFX_LED_OFF;
184 		break;
185 	case ETHTOOL_ID_INACTIVE:
186 		mode = EFX_LED_DEFAULT;
187 		break;
188 	case ETHTOOL_ID_ACTIVE:
189 		return 1;	/* cycle on/off once per second */
190 	}
191 
192 	efx->type->set_id_led(efx, mode);
193 	return 0;
194 }
195 
196 /* This must be called with rtnl_lock held. */
efx_ethtool_get_settings(struct net_device * net_dev,struct ethtool_cmd * ecmd)197 static int efx_ethtool_get_settings(struct net_device *net_dev,
198 				    struct ethtool_cmd *ecmd)
199 {
200 	struct efx_nic *efx = netdev_priv(net_dev);
201 	struct efx_link_state *link_state = &efx->link_state;
202 
203 	mutex_lock(&efx->mac_lock);
204 	efx->phy_op->get_settings(efx, ecmd);
205 	mutex_unlock(&efx->mac_lock);
206 
207 	/* GMAC does not support 1000Mbps HD */
208 	ecmd->supported &= ~SUPPORTED_1000baseT_Half;
209 	/* Both MACs support pause frames (bidirectional and respond-only) */
210 	ecmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
211 
212 	if (LOOPBACK_INTERNAL(efx)) {
213 		ethtool_cmd_speed_set(ecmd, link_state->speed);
214 		ecmd->duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
215 	}
216 
217 	return 0;
218 }
219 
220 /* This must be called with rtnl_lock held. */
efx_ethtool_set_settings(struct net_device * net_dev,struct ethtool_cmd * ecmd)221 static int efx_ethtool_set_settings(struct net_device *net_dev,
222 				    struct ethtool_cmd *ecmd)
223 {
224 	struct efx_nic *efx = netdev_priv(net_dev);
225 	int rc;
226 
227 	/* GMAC does not support 1000Mbps HD */
228 	if ((ethtool_cmd_speed(ecmd) == SPEED_1000) &&
229 	    (ecmd->duplex != DUPLEX_FULL)) {
230 		netif_dbg(efx, drv, efx->net_dev,
231 			  "rejecting unsupported 1000Mbps HD setting\n");
232 		return -EINVAL;
233 	}
234 
235 	mutex_lock(&efx->mac_lock);
236 	rc = efx->phy_op->set_settings(efx, ecmd);
237 	mutex_unlock(&efx->mac_lock);
238 	return rc;
239 }
240 
efx_ethtool_get_drvinfo(struct net_device * net_dev,struct ethtool_drvinfo * info)241 static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
242 				    struct ethtool_drvinfo *info)
243 {
244 	struct efx_nic *efx = netdev_priv(net_dev);
245 
246 	strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
247 	strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
248 	if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
249 		efx_mcdi_print_fwver(efx, info->fw_version,
250 				     sizeof(info->fw_version));
251 	strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
252 }
253 
efx_ethtool_get_regs_len(struct net_device * net_dev)254 static int efx_ethtool_get_regs_len(struct net_device *net_dev)
255 {
256 	return efx_nic_get_regs_len(netdev_priv(net_dev));
257 }
258 
efx_ethtool_get_regs(struct net_device * net_dev,struct ethtool_regs * regs,void * buf)259 static void efx_ethtool_get_regs(struct net_device *net_dev,
260 				 struct ethtool_regs *regs, void *buf)
261 {
262 	struct efx_nic *efx = netdev_priv(net_dev);
263 
264 	regs->version = efx->type->revision;
265 	efx_nic_get_regs(efx, buf);
266 }
267 
efx_ethtool_get_msglevel(struct net_device * net_dev)268 static u32 efx_ethtool_get_msglevel(struct net_device *net_dev)
269 {
270 	struct efx_nic *efx = netdev_priv(net_dev);
271 	return efx->msg_enable;
272 }
273 
efx_ethtool_set_msglevel(struct net_device * net_dev,u32 msg_enable)274 static void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
275 {
276 	struct efx_nic *efx = netdev_priv(net_dev);
277 	efx->msg_enable = msg_enable;
278 }
279 
280 /**
281  * efx_fill_test - fill in an individual self-test entry
282  * @test_index:		Index of the test
283  * @strings:		Ethtool strings, or %NULL
284  * @data:		Ethtool test results, or %NULL
285  * @test:		Pointer to test result (used only if data != %NULL)
286  * @unit_format:	Unit name format (e.g. "chan\%d")
287  * @unit_id:		Unit id (e.g. 0 for "chan0")
288  * @test_format:	Test name format (e.g. "loopback.\%s.tx.sent")
289  * @test_id:		Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
290  *
291  * Fill in an individual self-test entry.
292  */
efx_fill_test(unsigned int test_index,struct ethtool_string * strings,u64 * data,int * test,const char * unit_format,int unit_id,const char * test_format,const char * test_id)293 static void efx_fill_test(unsigned int test_index,
294 			  struct ethtool_string *strings, u64 *data,
295 			  int *test, const char *unit_format, int unit_id,
296 			  const char *test_format, const char *test_id)
297 {
298 	struct ethtool_string unit_str, test_str;
299 
300 	/* Fill data value, if applicable */
301 	if (data)
302 		data[test_index] = *test;
303 
304 	/* Fill string, if applicable */
305 	if (strings) {
306 		if (strchr(unit_format, '%'))
307 			snprintf(unit_str.name, sizeof(unit_str.name),
308 				 unit_format, unit_id);
309 		else
310 			strcpy(unit_str.name, unit_format);
311 		snprintf(test_str.name, sizeof(test_str.name),
312 			 test_format, test_id);
313 		snprintf(strings[test_index].name,
314 			 sizeof(strings[test_index].name),
315 			 "%-6s %-24s", unit_str.name, test_str.name);
316 	}
317 }
318 
319 #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
320 #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
321 #define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
322 #define EFX_LOOPBACK_NAME(_mode, _counter)			\
323 	"loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
324 
325 /**
326  * efx_fill_loopback_test - fill in a block of loopback self-test entries
327  * @efx:		Efx NIC
328  * @lb_tests:		Efx loopback self-test results structure
329  * @mode:		Loopback test mode
330  * @test_index:		Starting index of the test
331  * @strings:		Ethtool strings, or %NULL
332  * @data:		Ethtool test results, or %NULL
333  */
efx_fill_loopback_test(struct efx_nic * efx,struct efx_loopback_self_tests * lb_tests,enum efx_loopback_mode mode,unsigned int test_index,struct ethtool_string * strings,u64 * data)334 static int efx_fill_loopback_test(struct efx_nic *efx,
335 				  struct efx_loopback_self_tests *lb_tests,
336 				  enum efx_loopback_mode mode,
337 				  unsigned int test_index,
338 				  struct ethtool_string *strings, u64 *data)
339 {
340 	struct efx_channel *channel = efx_get_channel(efx, 0);
341 	struct efx_tx_queue *tx_queue;
342 
343 	efx_for_each_channel_tx_queue(tx_queue, channel) {
344 		efx_fill_test(test_index++, strings, data,
345 			      &lb_tests->tx_sent[tx_queue->queue],
346 			      EFX_TX_QUEUE_NAME(tx_queue),
347 			      EFX_LOOPBACK_NAME(mode, "tx_sent"));
348 		efx_fill_test(test_index++, strings, data,
349 			      &lb_tests->tx_done[tx_queue->queue],
350 			      EFX_TX_QUEUE_NAME(tx_queue),
351 			      EFX_LOOPBACK_NAME(mode, "tx_done"));
352 	}
353 	efx_fill_test(test_index++, strings, data,
354 		      &lb_tests->rx_good,
355 		      "rx", 0,
356 		      EFX_LOOPBACK_NAME(mode, "rx_good"));
357 	efx_fill_test(test_index++, strings, data,
358 		      &lb_tests->rx_bad,
359 		      "rx", 0,
360 		      EFX_LOOPBACK_NAME(mode, "rx_bad"));
361 
362 	return test_index;
363 }
364 
365 /**
366  * efx_ethtool_fill_self_tests - get self-test details
367  * @efx:		Efx NIC
368  * @tests:		Efx self-test results structure, or %NULL
369  * @strings:		Ethtool strings, or %NULL
370  * @data:		Ethtool test results, or %NULL
371  */
efx_ethtool_fill_self_tests(struct efx_nic * efx,struct efx_self_tests * tests,struct ethtool_string * strings,u64 * data)372 static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
373 				       struct efx_self_tests *tests,
374 				       struct ethtool_string *strings,
375 				       u64 *data)
376 {
377 	struct efx_channel *channel;
378 	unsigned int n = 0, i;
379 	enum efx_loopback_mode mode;
380 
381 	efx_fill_test(n++, strings, data, &tests->phy_alive,
382 		      "phy", 0, "alive", NULL);
383 	efx_fill_test(n++, strings, data, &tests->nvram,
384 		      "core", 0, "nvram", NULL);
385 	efx_fill_test(n++, strings, data, &tests->interrupt,
386 		      "core", 0, "interrupt", NULL);
387 
388 	/* Event queues */
389 	efx_for_each_channel(channel, efx) {
390 		efx_fill_test(n++, strings, data,
391 			      &tests->eventq_dma[channel->channel],
392 			      EFX_CHANNEL_NAME(channel),
393 			      "eventq.dma", NULL);
394 		efx_fill_test(n++, strings, data,
395 			      &tests->eventq_int[channel->channel],
396 			      EFX_CHANNEL_NAME(channel),
397 			      "eventq.int", NULL);
398 	}
399 
400 	efx_fill_test(n++, strings, data, &tests->registers,
401 		      "core", 0, "registers", NULL);
402 
403 	if (efx->phy_op->run_tests != NULL) {
404 		EFX_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);
405 
406 		for (i = 0; true; ++i) {
407 			const char *name;
408 
409 			EFX_BUG_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
410 			name = efx->phy_op->test_name(efx, i);
411 			if (name == NULL)
412 				break;
413 
414 			efx_fill_test(n++, strings, data, &tests->phy_ext[i],
415 				      "phy", 0, name, NULL);
416 		}
417 	}
418 
419 	/* Loopback tests */
420 	for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
421 		if (!(efx->loopback_modes & (1 << mode)))
422 			continue;
423 		n = efx_fill_loopback_test(efx,
424 					   &tests->loopback[mode], mode, n,
425 					   strings, data);
426 	}
427 
428 	return n;
429 }
430 
efx_ethtool_get_sset_count(struct net_device * net_dev,int string_set)431 static int efx_ethtool_get_sset_count(struct net_device *net_dev,
432 				      int string_set)
433 {
434 	switch (string_set) {
435 	case ETH_SS_STATS:
436 		return EFX_ETHTOOL_NUM_STATS;
437 	case ETH_SS_TEST:
438 		return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
439 						   NULL, NULL, NULL);
440 	default:
441 		return -EINVAL;
442 	}
443 }
444 
efx_ethtool_get_strings(struct net_device * net_dev,u32 string_set,u8 * strings)445 static void efx_ethtool_get_strings(struct net_device *net_dev,
446 				    u32 string_set, u8 *strings)
447 {
448 	struct efx_nic *efx = netdev_priv(net_dev);
449 	struct ethtool_string *ethtool_strings =
450 		(struct ethtool_string *)strings;
451 	int i;
452 
453 	switch (string_set) {
454 	case ETH_SS_STATS:
455 		for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
456 			strncpy(ethtool_strings[i].name,
457 				efx_ethtool_stats[i].name,
458 				sizeof(ethtool_strings[i].name));
459 		break;
460 	case ETH_SS_TEST:
461 		efx_ethtool_fill_self_tests(efx, NULL,
462 					    ethtool_strings, NULL);
463 		break;
464 	default:
465 		/* No other string sets */
466 		break;
467 	}
468 }
469 
efx_ethtool_get_stats(struct net_device * net_dev,struct ethtool_stats * stats,u64 * data)470 static void efx_ethtool_get_stats(struct net_device *net_dev,
471 				  struct ethtool_stats *stats,
472 				  u64 *data)
473 {
474 	struct efx_nic *efx = netdev_priv(net_dev);
475 	struct efx_mac_stats *mac_stats = &efx->mac_stats;
476 	const struct efx_ethtool_stat *stat;
477 	struct efx_channel *channel;
478 	struct efx_tx_queue *tx_queue;
479 	int i;
480 
481 	EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
482 
483 	spin_lock_bh(&efx->stats_lock);
484 
485 	/* Update MAC and NIC statistics */
486 	efx->type->update_stats(efx);
487 
488 	/* Fill detailed statistics buffer */
489 	for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
490 		stat = &efx_ethtool_stats[i];
491 		switch (stat->source) {
492 		case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
493 			data[i] = stat->get_stat((void *)mac_stats +
494 						 stat->offset);
495 			break;
496 		case EFX_ETHTOOL_STAT_SOURCE_nic:
497 			data[i] = stat->get_stat((void *)efx + stat->offset);
498 			break;
499 		case EFX_ETHTOOL_STAT_SOURCE_channel:
500 			data[i] = 0;
501 			efx_for_each_channel(channel, efx)
502 				data[i] += stat->get_stat((void *)channel +
503 							  stat->offset);
504 			break;
505 		case EFX_ETHTOOL_STAT_SOURCE_tx_queue:
506 			data[i] = 0;
507 			efx_for_each_channel(channel, efx) {
508 				efx_for_each_channel_tx_queue(tx_queue, channel)
509 					data[i] +=
510 						stat->get_stat((void *)tx_queue
511 							       + stat->offset);
512 			}
513 			break;
514 		}
515 	}
516 
517 	spin_unlock_bh(&efx->stats_lock);
518 }
519 
efx_ethtool_self_test(struct net_device * net_dev,struct ethtool_test * test,u64 * data)520 static void efx_ethtool_self_test(struct net_device *net_dev,
521 				  struct ethtool_test *test, u64 *data)
522 {
523 	struct efx_nic *efx = netdev_priv(net_dev);
524 	struct efx_self_tests *efx_tests;
525 	int already_up;
526 	int rc = -ENOMEM;
527 
528 	efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL);
529 	if (!efx_tests)
530 		goto fail;
531 
532 
533 	ASSERT_RTNL();
534 	if (efx->state != STATE_RUNNING) {
535 		rc = -EIO;
536 		goto fail1;
537 	}
538 
539 	netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
540 		   (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
541 
542 	/* We need rx buffers and interrupts. */
543 	already_up = (efx->net_dev->flags & IFF_UP);
544 	if (!already_up) {
545 		rc = dev_open(efx->net_dev);
546 		if (rc) {
547 			netif_err(efx, drv, efx->net_dev,
548 				  "failed opening device.\n");
549 			goto fail1;
550 		}
551 	}
552 
553 	rc = efx_selftest(efx, efx_tests, test->flags);
554 
555 	if (!already_up)
556 		dev_close(efx->net_dev);
557 
558 	netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
559 		   rc == 0 ? "passed" : "failed",
560 		   (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
561 
562 fail1:
563 	/* Fill ethtool results structures */
564 	efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data);
565 	kfree(efx_tests);
566 fail:
567 	if (rc)
568 		test->flags |= ETH_TEST_FL_FAILED;
569 }
570 
571 /* Restart autonegotiation */
efx_ethtool_nway_reset(struct net_device * net_dev)572 static int efx_ethtool_nway_reset(struct net_device *net_dev)
573 {
574 	struct efx_nic *efx = netdev_priv(net_dev);
575 
576 	return mdio45_nway_restart(&efx->mdio);
577 }
578 
579 /*
580  * Each channel has a single IRQ and moderation timer, started by any
581  * completion (or other event).  Unless the module parameter
582  * separate_tx_channels is set, IRQs and moderation are therefore
583  * shared between RX and TX completions.  In this case, when RX IRQ
584  * moderation is explicitly changed then TX IRQ moderation is
585  * automatically changed too, but otherwise we fail if the two values
586  * are requested to be different.
587  *
588  * The hardware does not support a limit on the number of completions
589  * before an IRQ, so we do not use the max_frames fields.  We should
590  * report and require that max_frames == (usecs != 0), but this would
591  * invalidate existing user documentation.
592  *
593  * The hardware does not have distinct settings for interrupt
594  * moderation while the previous IRQ is being handled, so we should
595  * not use the 'irq' fields.  However, an earlier developer
596  * misunderstood the meaning of the 'irq' fields and the driver did
597  * not support the standard fields.  To avoid invalidating existing
598  * user documentation, we report and accept changes through either the
599  * standard or 'irq' fields.  If both are changed at the same time, we
600  * prefer the standard field.
601  *
602  * We implement adaptive IRQ moderation, but use a different algorithm
603  * from that assumed in the definition of struct ethtool_coalesce.
604  * Therefore we do not use any of the adaptive moderation parameters
605  * in it.
606  */
607 
efx_ethtool_get_coalesce(struct net_device * net_dev,struct ethtool_coalesce * coalesce)608 static int efx_ethtool_get_coalesce(struct net_device *net_dev,
609 				    struct ethtool_coalesce *coalesce)
610 {
611 	struct efx_nic *efx = netdev_priv(net_dev);
612 	unsigned int tx_usecs, rx_usecs;
613 	bool rx_adaptive;
614 
615 	efx_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &rx_adaptive);
616 
617 	coalesce->tx_coalesce_usecs = tx_usecs;
618 	coalesce->tx_coalesce_usecs_irq = tx_usecs;
619 	coalesce->rx_coalesce_usecs = rx_usecs;
620 	coalesce->rx_coalesce_usecs_irq = rx_usecs;
621 	coalesce->use_adaptive_rx_coalesce = rx_adaptive;
622 
623 	return 0;
624 }
625 
efx_ethtool_set_coalesce(struct net_device * net_dev,struct ethtool_coalesce * coalesce)626 static int efx_ethtool_set_coalesce(struct net_device *net_dev,
627 				    struct ethtool_coalesce *coalesce)
628 {
629 	struct efx_nic *efx = netdev_priv(net_dev);
630 	struct efx_channel *channel;
631 	unsigned int tx_usecs, rx_usecs;
632 	bool adaptive, rx_may_override_tx;
633 	int rc;
634 
635 	if (coalesce->use_adaptive_tx_coalesce)
636 		return -EINVAL;
637 
638 	efx_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &adaptive);
639 
640 	if (coalesce->rx_coalesce_usecs != rx_usecs)
641 		rx_usecs = coalesce->rx_coalesce_usecs;
642 	else
643 		rx_usecs = coalesce->rx_coalesce_usecs_irq;
644 
645 	adaptive = coalesce->use_adaptive_rx_coalesce;
646 
647 	/* If channels are shared, TX IRQ moderation can be quietly
648 	 * overridden unless it is changed from its old value.
649 	 */
650 	rx_may_override_tx = (coalesce->tx_coalesce_usecs == tx_usecs &&
651 			      coalesce->tx_coalesce_usecs_irq == tx_usecs);
652 	if (coalesce->tx_coalesce_usecs != tx_usecs)
653 		tx_usecs = coalesce->tx_coalesce_usecs;
654 	else
655 		tx_usecs = coalesce->tx_coalesce_usecs_irq;
656 
657 	rc = efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive,
658 				     rx_may_override_tx);
659 	if (rc != 0)
660 		return rc;
661 
662 	efx_for_each_channel(channel, efx)
663 		efx->type->push_irq_moderation(channel);
664 
665 	return 0;
666 }
667 
efx_ethtool_get_ringparam(struct net_device * net_dev,struct ethtool_ringparam * ring)668 static void efx_ethtool_get_ringparam(struct net_device *net_dev,
669 				      struct ethtool_ringparam *ring)
670 {
671 	struct efx_nic *efx = netdev_priv(net_dev);
672 
673 	ring->rx_max_pending = EFX_MAX_DMAQ_SIZE;
674 	ring->tx_max_pending = EFX_MAX_DMAQ_SIZE;
675 	ring->rx_pending = efx->rxq_entries;
676 	ring->tx_pending = efx->txq_entries;
677 }
678 
efx_ethtool_set_ringparam(struct net_device * net_dev,struct ethtool_ringparam * ring)679 static int efx_ethtool_set_ringparam(struct net_device *net_dev,
680 				     struct ethtool_ringparam *ring)
681 {
682 	struct efx_nic *efx = netdev_priv(net_dev);
683 	u32 txq_entries;
684 
685 	if (ring->rx_mini_pending || ring->rx_jumbo_pending ||
686 	    ring->rx_pending > EFX_MAX_DMAQ_SIZE ||
687 	    ring->tx_pending > EFX_MAX_DMAQ_SIZE)
688 		return -EINVAL;
689 
690 	if (ring->rx_pending < EFX_RXQ_MIN_ENT) {
691 		netif_err(efx, drv, efx->net_dev,
692 			  "RX queues cannot be smaller than %u\n",
693 			  EFX_RXQ_MIN_ENT);
694 		return -EINVAL;
695 	}
696 
697 	txq_entries = max(ring->tx_pending, EFX_TXQ_MIN_ENT(efx));
698 	if (txq_entries != ring->tx_pending)
699 		netif_warn(efx, drv, efx->net_dev,
700 			   "increasing TX queue size to minimum of %u\n",
701 			   txq_entries);
702 
703 	return efx_realloc_channels(efx, ring->rx_pending, txq_entries);
704 }
705 
efx_ethtool_set_pauseparam(struct net_device * net_dev,struct ethtool_pauseparam * pause)706 static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
707 				      struct ethtool_pauseparam *pause)
708 {
709 	struct efx_nic *efx = netdev_priv(net_dev);
710 	u8 wanted_fc, old_fc;
711 	u32 old_adv;
712 	bool reset;
713 	int rc = 0;
714 
715 	mutex_lock(&efx->mac_lock);
716 
717 	wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
718 		     (pause->tx_pause ? EFX_FC_TX : 0) |
719 		     (pause->autoneg ? EFX_FC_AUTO : 0));
720 
721 	if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
722 		netif_dbg(efx, drv, efx->net_dev,
723 			  "Flow control unsupported: tx ON rx OFF\n");
724 		rc = -EINVAL;
725 		goto out;
726 	}
727 
728 	if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) {
729 		netif_dbg(efx, drv, efx->net_dev,
730 			  "Autonegotiation is disabled\n");
731 		rc = -EINVAL;
732 		goto out;
733 	}
734 
735 	/* TX flow control may automatically turn itself off if the
736 	 * link partner (intermittently) stops responding to pause
737 	 * frames. There isn't any indication that this has happened,
738 	 * so the best we do is leave it up to the user to spot this
739 	 * and fix it be cycling transmit flow control on this end. */
740 	reset = (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX);
741 	if (EFX_WORKAROUND_11482(efx) && reset) {
742 		if (efx_nic_rev(efx) == EFX_REV_FALCON_B0) {
743 			/* Recover by resetting the EM block */
744 			falcon_stop_nic_stats(efx);
745 			falcon_drain_tx_fifo(efx);
746 			falcon_reconfigure_xmac(efx);
747 			falcon_start_nic_stats(efx);
748 		} else {
749 			/* Schedule a reset to recover */
750 			efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
751 		}
752 	}
753 
754 	old_adv = efx->link_advertising;
755 	old_fc = efx->wanted_fc;
756 	efx_link_set_wanted_fc(efx, wanted_fc);
757 	if (efx->link_advertising != old_adv ||
758 	    (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
759 		rc = efx->phy_op->reconfigure(efx);
760 		if (rc) {
761 			netif_err(efx, drv, efx->net_dev,
762 				  "Unable to advertise requested flow "
763 				  "control setting\n");
764 			goto out;
765 		}
766 	}
767 
768 	/* Reconfigure the MAC. The PHY *may* generate a link state change event
769 	 * if the user just changed the advertised capabilities, but there's no
770 	 * harm doing this twice */
771 	efx->type->reconfigure_mac(efx);
772 
773 out:
774 	mutex_unlock(&efx->mac_lock);
775 
776 	return rc;
777 }
778 
efx_ethtool_get_pauseparam(struct net_device * net_dev,struct ethtool_pauseparam * pause)779 static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
780 				       struct ethtool_pauseparam *pause)
781 {
782 	struct efx_nic *efx = netdev_priv(net_dev);
783 
784 	pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
785 	pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
786 	pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
787 }
788 
789 
efx_ethtool_get_wol(struct net_device * net_dev,struct ethtool_wolinfo * wol)790 static void efx_ethtool_get_wol(struct net_device *net_dev,
791 				struct ethtool_wolinfo *wol)
792 {
793 	struct efx_nic *efx = netdev_priv(net_dev);
794 	return efx->type->get_wol(efx, wol);
795 }
796 
797 
efx_ethtool_set_wol(struct net_device * net_dev,struct ethtool_wolinfo * wol)798 static int efx_ethtool_set_wol(struct net_device *net_dev,
799 			       struct ethtool_wolinfo *wol)
800 {
801 	struct efx_nic *efx = netdev_priv(net_dev);
802 	return efx->type->set_wol(efx, wol->wolopts);
803 }
804 
efx_ethtool_reset(struct net_device * net_dev,u32 * flags)805 static int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
806 {
807 	struct efx_nic *efx = netdev_priv(net_dev);
808 	int rc;
809 
810 	rc = efx->type->map_reset_flags(flags);
811 	if (rc < 0)
812 		return rc;
813 
814 	return efx_reset(efx, rc);
815 }
816 
817 /* MAC address mask including only MC flag */
818 static const u8 mac_addr_mc_mask[ETH_ALEN] = { 0x01, 0, 0, 0, 0, 0 };
819 
efx_ethtool_get_class_rule(struct efx_nic * efx,struct ethtool_rx_flow_spec * rule)820 static int efx_ethtool_get_class_rule(struct efx_nic *efx,
821 				      struct ethtool_rx_flow_spec *rule)
822 {
823 	struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
824 	struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
825 	struct ethhdr *mac_entry = &rule->h_u.ether_spec;
826 	struct ethhdr *mac_mask = &rule->m_u.ether_spec;
827 	struct efx_filter_spec spec;
828 	u16 vid;
829 	u8 proto;
830 	int rc;
831 
832 	rc = efx_filter_get_filter_safe(efx, EFX_FILTER_PRI_MANUAL,
833 					rule->location, &spec);
834 	if (rc)
835 		return rc;
836 
837 	if (spec.dmaq_id == 0xfff)
838 		rule->ring_cookie = RX_CLS_FLOW_DISC;
839 	else
840 		rule->ring_cookie = spec.dmaq_id;
841 
842 	if (spec.type == EFX_FILTER_MC_DEF || spec.type == EFX_FILTER_UC_DEF) {
843 		rule->flow_type = ETHER_FLOW;
844 		memcpy(mac_mask->h_dest, mac_addr_mc_mask, ETH_ALEN);
845 		if (spec.type == EFX_FILTER_MC_DEF)
846 			memcpy(mac_entry->h_dest, mac_addr_mc_mask, ETH_ALEN);
847 		return 0;
848 	}
849 
850 	rc = efx_filter_get_eth_local(&spec, &vid, mac_entry->h_dest);
851 	if (rc == 0) {
852 		rule->flow_type = ETHER_FLOW;
853 		memset(mac_mask->h_dest, ~0, ETH_ALEN);
854 		if (vid != EFX_FILTER_VID_UNSPEC) {
855 			rule->flow_type |= FLOW_EXT;
856 			rule->h_ext.vlan_tci = htons(vid);
857 			rule->m_ext.vlan_tci = htons(0xfff);
858 		}
859 		return 0;
860 	}
861 
862 	rc = efx_filter_get_ipv4_local(&spec, &proto,
863 				       &ip_entry->ip4dst, &ip_entry->pdst);
864 	if (rc != 0) {
865 		rc = efx_filter_get_ipv4_full(
866 			&spec, &proto, &ip_entry->ip4dst, &ip_entry->pdst,
867 			&ip_entry->ip4src, &ip_entry->psrc);
868 		EFX_WARN_ON_PARANOID(rc);
869 		ip_mask->ip4src = ~0;
870 		ip_mask->psrc = ~0;
871 	}
872 	rule->flow_type = (proto == IPPROTO_TCP) ? TCP_V4_FLOW : UDP_V4_FLOW;
873 	ip_mask->ip4dst = ~0;
874 	ip_mask->pdst = ~0;
875 	return rc;
876 }
877 
878 static int
efx_ethtool_get_rxnfc(struct net_device * net_dev,struct ethtool_rxnfc * info,u32 * rule_locs)879 efx_ethtool_get_rxnfc(struct net_device *net_dev,
880 		      struct ethtool_rxnfc *info, u32 *rule_locs)
881 {
882 	struct efx_nic *efx = netdev_priv(net_dev);
883 
884 	switch (info->cmd) {
885 	case ETHTOOL_GRXRINGS:
886 		info->data = efx->n_rx_channels;
887 		return 0;
888 
889 	case ETHTOOL_GRXFH: {
890 		unsigned min_revision = 0;
891 
892 		info->data = 0;
893 		switch (info->flow_type) {
894 		case TCP_V4_FLOW:
895 			info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
896 			/* fall through */
897 		case UDP_V4_FLOW:
898 		case SCTP_V4_FLOW:
899 		case AH_ESP_V4_FLOW:
900 		case IPV4_FLOW:
901 			info->data |= RXH_IP_SRC | RXH_IP_DST;
902 			min_revision = EFX_REV_FALCON_B0;
903 			break;
904 		case TCP_V6_FLOW:
905 			info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
906 			/* fall through */
907 		case UDP_V6_FLOW:
908 		case SCTP_V6_FLOW:
909 		case AH_ESP_V6_FLOW:
910 		case IPV6_FLOW:
911 			info->data |= RXH_IP_SRC | RXH_IP_DST;
912 			min_revision = EFX_REV_SIENA_A0;
913 			break;
914 		default:
915 			break;
916 		}
917 		if (efx_nic_rev(efx) < min_revision)
918 			info->data = 0;
919 		return 0;
920 	}
921 
922 	case ETHTOOL_GRXCLSRLCNT:
923 		info->data = efx_filter_get_rx_id_limit(efx);
924 		if (info->data == 0)
925 			return -EOPNOTSUPP;
926 		info->data |= RX_CLS_LOC_SPECIAL;
927 		info->rule_cnt =
928 			efx_filter_count_rx_used(efx, EFX_FILTER_PRI_MANUAL);
929 		return 0;
930 
931 	case ETHTOOL_GRXCLSRULE:
932 		if (efx_filter_get_rx_id_limit(efx) == 0)
933 			return -EOPNOTSUPP;
934 		return efx_ethtool_get_class_rule(efx, &info->fs);
935 
936 	case ETHTOOL_GRXCLSRLALL: {
937 		s32 rc;
938 		info->data = efx_filter_get_rx_id_limit(efx);
939 		if (info->data == 0)
940 			return -EOPNOTSUPP;
941 		rc = efx_filter_get_rx_ids(efx, EFX_FILTER_PRI_MANUAL,
942 					   rule_locs, info->rule_cnt);
943 		if (rc < 0)
944 			return rc;
945 		info->rule_cnt = rc;
946 		return 0;
947 	}
948 
949 	default:
950 		return -EOPNOTSUPP;
951 	}
952 }
953 
efx_ethtool_set_class_rule(struct efx_nic * efx,struct ethtool_rx_flow_spec * rule)954 static int efx_ethtool_set_class_rule(struct efx_nic *efx,
955 				      struct ethtool_rx_flow_spec *rule)
956 {
957 	struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
958 	struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
959 	struct ethhdr *mac_entry = &rule->h_u.ether_spec;
960 	struct ethhdr *mac_mask = &rule->m_u.ether_spec;
961 	struct efx_filter_spec spec;
962 	int rc;
963 
964 	/* Check that user wants us to choose the location */
965 	if (rule->location != RX_CLS_LOC_ANY &&
966 	    rule->location != RX_CLS_LOC_FIRST &&
967 	    rule->location != RX_CLS_LOC_LAST)
968 		return -EINVAL;
969 
970 	/* Range-check ring_cookie */
971 	if (rule->ring_cookie >= efx->n_rx_channels &&
972 	    rule->ring_cookie != RX_CLS_FLOW_DISC)
973 		return -EINVAL;
974 
975 	/* Check for unsupported extensions */
976 	if ((rule->flow_type & FLOW_EXT) &&
977 	    (rule->m_ext.vlan_etype | rule->m_ext.data[0] |
978 	     rule->m_ext.data[1]))
979 		return -EINVAL;
980 
981 	efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL,
982 			   (rule->location == RX_CLS_LOC_FIRST) ?
983 			   EFX_FILTER_FLAG_RX_OVERRIDE_IP : 0,
984 			   (rule->ring_cookie == RX_CLS_FLOW_DISC) ?
985 			   0xfff : rule->ring_cookie);
986 
987 	switch (rule->flow_type) {
988 	case TCP_V4_FLOW:
989 	case UDP_V4_FLOW: {
990 		u8 proto = (rule->flow_type == TCP_V4_FLOW ?
991 			    IPPROTO_TCP : IPPROTO_UDP);
992 
993 		/* Must match all of destination, */
994 		if ((__force u32)~ip_mask->ip4dst |
995 		    (__force u16)~ip_mask->pdst)
996 			return -EINVAL;
997 		/* all or none of source, */
998 		if ((ip_mask->ip4src | ip_mask->psrc) &&
999 		    ((__force u32)~ip_mask->ip4src |
1000 		     (__force u16)~ip_mask->psrc))
1001 			return -EINVAL;
1002 		/* and nothing else */
1003 		if (ip_mask->tos | rule->m_ext.vlan_tci)
1004 			return -EINVAL;
1005 
1006 		if (ip_mask->ip4src)
1007 			rc = efx_filter_set_ipv4_full(&spec, proto,
1008 						      ip_entry->ip4dst,
1009 						      ip_entry->pdst,
1010 						      ip_entry->ip4src,
1011 						      ip_entry->psrc);
1012 		else
1013 			rc = efx_filter_set_ipv4_local(&spec, proto,
1014 						       ip_entry->ip4dst,
1015 						       ip_entry->pdst);
1016 		if (rc)
1017 			return rc;
1018 		break;
1019 	}
1020 
1021 	case ETHER_FLOW | FLOW_EXT:
1022 	case ETHER_FLOW: {
1023 		u16 vlan_tag_mask = (rule->flow_type & FLOW_EXT ?
1024 				     ntohs(rule->m_ext.vlan_tci) : 0);
1025 
1026 		/* Must not match on source address or Ethertype */
1027 		if (!is_zero_ether_addr(mac_mask->h_source) ||
1028 		    mac_mask->h_proto)
1029 			return -EINVAL;
1030 
1031 		/* Is it a default UC or MC filter? */
1032 		if (!compare_ether_addr(mac_mask->h_dest, mac_addr_mc_mask) &&
1033 		    vlan_tag_mask == 0) {
1034 			if (is_multicast_ether_addr(mac_entry->h_dest))
1035 				rc = efx_filter_set_mc_def(&spec);
1036 			else
1037 				rc = efx_filter_set_uc_def(&spec);
1038 		}
1039 		/* Otherwise, it must match all of destination and all
1040 		 * or none of VID.
1041 		 */
1042 		else if (is_broadcast_ether_addr(mac_mask->h_dest) &&
1043 			 (vlan_tag_mask == 0xfff || vlan_tag_mask == 0)) {
1044 			rc = efx_filter_set_eth_local(
1045 				&spec,
1046 				vlan_tag_mask ?
1047 				ntohs(rule->h_ext.vlan_tci) : EFX_FILTER_VID_UNSPEC,
1048 				mac_entry->h_dest);
1049 		} else {
1050 			rc = -EINVAL;
1051 		}
1052 		if (rc)
1053 			return rc;
1054 		break;
1055 	}
1056 
1057 	default:
1058 		return -EINVAL;
1059 	}
1060 
1061 	rc = efx_filter_insert_filter(efx, &spec, true);
1062 	if (rc < 0)
1063 		return rc;
1064 
1065 	rule->location = rc;
1066 	return 0;
1067 }
1068 
efx_ethtool_set_rxnfc(struct net_device * net_dev,struct ethtool_rxnfc * info)1069 static int efx_ethtool_set_rxnfc(struct net_device *net_dev,
1070 				 struct ethtool_rxnfc *info)
1071 {
1072 	struct efx_nic *efx = netdev_priv(net_dev);
1073 
1074 	if (efx_filter_get_rx_id_limit(efx) == 0)
1075 		return -EOPNOTSUPP;
1076 
1077 	switch (info->cmd) {
1078 	case ETHTOOL_SRXCLSRLINS:
1079 		return efx_ethtool_set_class_rule(efx, &info->fs);
1080 
1081 	case ETHTOOL_SRXCLSRLDEL:
1082 		return efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_MANUAL,
1083 						 info->fs.location);
1084 
1085 	default:
1086 		return -EOPNOTSUPP;
1087 	}
1088 }
1089 
efx_ethtool_get_rxfh_indir_size(struct net_device * net_dev)1090 static u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev)
1091 {
1092 	struct efx_nic *efx = netdev_priv(net_dev);
1093 
1094 	return ((efx_nic_rev(efx) < EFX_REV_FALCON_B0 ||
1095 		 efx->n_rx_channels == 1) ?
1096 		0 : ARRAY_SIZE(efx->rx_indir_table));
1097 }
1098 
efx_ethtool_get_rxfh_indir(struct net_device * net_dev,u32 * indir)1099 static int efx_ethtool_get_rxfh_indir(struct net_device *net_dev, u32 *indir)
1100 {
1101 	struct efx_nic *efx = netdev_priv(net_dev);
1102 
1103 	memcpy(indir, efx->rx_indir_table, sizeof(efx->rx_indir_table));
1104 	return 0;
1105 }
1106 
efx_ethtool_set_rxfh_indir(struct net_device * net_dev,const u32 * indir)1107 static int efx_ethtool_set_rxfh_indir(struct net_device *net_dev,
1108 				      const u32 *indir)
1109 {
1110 	struct efx_nic *efx = netdev_priv(net_dev);
1111 
1112 	memcpy(efx->rx_indir_table, indir, sizeof(efx->rx_indir_table));
1113 	efx_nic_push_rx_indir_table(efx);
1114 	return 0;
1115 }
1116 
1117 const struct ethtool_ops efx_ethtool_ops = {
1118 	.get_settings		= efx_ethtool_get_settings,
1119 	.set_settings		= efx_ethtool_set_settings,
1120 	.get_drvinfo		= efx_ethtool_get_drvinfo,
1121 	.get_regs_len		= efx_ethtool_get_regs_len,
1122 	.get_regs		= efx_ethtool_get_regs,
1123 	.get_msglevel		= efx_ethtool_get_msglevel,
1124 	.set_msglevel		= efx_ethtool_set_msglevel,
1125 	.nway_reset		= efx_ethtool_nway_reset,
1126 	.get_link		= ethtool_op_get_link,
1127 	.get_coalesce		= efx_ethtool_get_coalesce,
1128 	.set_coalesce		= efx_ethtool_set_coalesce,
1129 	.get_ringparam		= efx_ethtool_get_ringparam,
1130 	.set_ringparam		= efx_ethtool_set_ringparam,
1131 	.get_pauseparam         = efx_ethtool_get_pauseparam,
1132 	.set_pauseparam         = efx_ethtool_set_pauseparam,
1133 	.get_sset_count		= efx_ethtool_get_sset_count,
1134 	.self_test		= efx_ethtool_self_test,
1135 	.get_strings		= efx_ethtool_get_strings,
1136 	.set_phys_id		= efx_ethtool_phys_id,
1137 	.get_ethtool_stats	= efx_ethtool_get_stats,
1138 	.get_wol                = efx_ethtool_get_wol,
1139 	.set_wol                = efx_ethtool_set_wol,
1140 	.reset			= efx_ethtool_reset,
1141 	.get_rxnfc		= efx_ethtool_get_rxnfc,
1142 	.set_rxnfc		= efx_ethtool_set_rxnfc,
1143 	.get_rxfh_indir_size	= efx_ethtool_get_rxfh_indir_size,
1144 	.get_rxfh_indir		= efx_ethtool_get_rxfh_indir,
1145 	.set_rxfh_indir		= efx_ethtool_set_rxfh_indir,
1146 };
1147