1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 1999 - 2018 Intel Corporation. */
3 
4 /* ethtool support for e1000 */
5 
6 #include <linux/netdevice.h>
7 #include <linux/interrupt.h>
8 #include <linux/ethtool.h>
9 #include <linux/pci.h>
10 #include <linux/slab.h>
11 #include <linux/delay.h>
12 #include <linux/vmalloc.h>
13 #include <linux/pm_runtime.h>
14 
15 #include "e1000.h"
16 
17 enum { NETDEV_STATS, E1000_STATS };
18 
19 struct e1000_stats {
20 	char stat_string[ETH_GSTRING_LEN];
21 	int type;
22 	int sizeof_stat;
23 	int stat_offset;
24 };
25 
26 #define E1000_STAT(str, m) { \
27 		.stat_string = str, \
28 		.type = E1000_STATS, \
29 		.sizeof_stat = sizeof(((struct e1000_adapter *)0)->m), \
30 		.stat_offset = offsetof(struct e1000_adapter, m) }
31 #define E1000_NETDEV_STAT(str, m) { \
32 		.stat_string = str, \
33 		.type = NETDEV_STATS, \
34 		.sizeof_stat = sizeof(((struct rtnl_link_stats64 *)0)->m), \
35 		.stat_offset = offsetof(struct rtnl_link_stats64, m) }
36 
37 static const struct e1000_stats e1000_gstrings_stats[] = {
38 	E1000_STAT("rx_packets", stats.gprc),
39 	E1000_STAT("tx_packets", stats.gptc),
40 	E1000_STAT("rx_bytes", stats.gorc),
41 	E1000_STAT("tx_bytes", stats.gotc),
42 	E1000_STAT("rx_broadcast", stats.bprc),
43 	E1000_STAT("tx_broadcast", stats.bptc),
44 	E1000_STAT("rx_multicast", stats.mprc),
45 	E1000_STAT("tx_multicast", stats.mptc),
46 	E1000_NETDEV_STAT("rx_errors", rx_errors),
47 	E1000_NETDEV_STAT("tx_errors", tx_errors),
48 	E1000_NETDEV_STAT("tx_dropped", tx_dropped),
49 	E1000_STAT("multicast", stats.mprc),
50 	E1000_STAT("collisions", stats.colc),
51 	E1000_NETDEV_STAT("rx_length_errors", rx_length_errors),
52 	E1000_NETDEV_STAT("rx_over_errors", rx_over_errors),
53 	E1000_STAT("rx_crc_errors", stats.crcerrs),
54 	E1000_NETDEV_STAT("rx_frame_errors", rx_frame_errors),
55 	E1000_STAT("rx_no_buffer_count", stats.rnbc),
56 	E1000_STAT("rx_missed_errors", stats.mpc),
57 	E1000_STAT("tx_aborted_errors", stats.ecol),
58 	E1000_STAT("tx_carrier_errors", stats.tncrs),
59 	E1000_NETDEV_STAT("tx_fifo_errors", tx_fifo_errors),
60 	E1000_NETDEV_STAT("tx_heartbeat_errors", tx_heartbeat_errors),
61 	E1000_STAT("tx_window_errors", stats.latecol),
62 	E1000_STAT("tx_abort_late_coll", stats.latecol),
63 	E1000_STAT("tx_deferred_ok", stats.dc),
64 	E1000_STAT("tx_single_coll_ok", stats.scc),
65 	E1000_STAT("tx_multi_coll_ok", stats.mcc),
66 	E1000_STAT("tx_timeout_count", tx_timeout_count),
67 	E1000_STAT("tx_restart_queue", restart_queue),
68 	E1000_STAT("rx_long_length_errors", stats.roc),
69 	E1000_STAT("rx_short_length_errors", stats.ruc),
70 	E1000_STAT("rx_align_errors", stats.algnerrc),
71 	E1000_STAT("tx_tcp_seg_good", stats.tsctc),
72 	E1000_STAT("tx_tcp_seg_failed", stats.tsctfc),
73 	E1000_STAT("rx_flow_control_xon", stats.xonrxc),
74 	E1000_STAT("rx_flow_control_xoff", stats.xoffrxc),
75 	E1000_STAT("tx_flow_control_xon", stats.xontxc),
76 	E1000_STAT("tx_flow_control_xoff", stats.xofftxc),
77 	E1000_STAT("rx_csum_offload_good", hw_csum_good),
78 	E1000_STAT("rx_csum_offload_errors", hw_csum_err),
79 	E1000_STAT("rx_header_split", rx_hdr_split),
80 	E1000_STAT("alloc_rx_buff_failed", alloc_rx_buff_failed),
81 	E1000_STAT("tx_smbus", stats.mgptc),
82 	E1000_STAT("rx_smbus", stats.mgprc),
83 	E1000_STAT("dropped_smbus", stats.mgpdc),
84 	E1000_STAT("rx_dma_failed", rx_dma_failed),
85 	E1000_STAT("tx_dma_failed", tx_dma_failed),
86 	E1000_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
87 	E1000_STAT("uncorr_ecc_errors", uncorr_errors),
88 	E1000_STAT("corr_ecc_errors", corr_errors),
89 	E1000_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
90 	E1000_STAT("tx_hwtstamp_skipped", tx_hwtstamp_skipped),
91 };
92 
93 #define E1000_GLOBAL_STATS_LEN	ARRAY_SIZE(e1000_gstrings_stats)
94 #define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN)
95 static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {
96 	"Register test  (offline)", "Eeprom test    (offline)",
97 	"Interrupt test (offline)", "Loopback test  (offline)",
98 	"Link test   (on/offline)"
99 };
100 
101 #define E1000_TEST_LEN ARRAY_SIZE(e1000_gstrings_test)
102 
103 static int e1000_get_link_ksettings(struct net_device *netdev,
104 				    struct ethtool_link_ksettings *cmd)
105 {
106 	struct e1000_adapter *adapter = netdev_priv(netdev);
107 	struct e1000_hw *hw = &adapter->hw;
108 	u32 speed, supported, advertising;
109 
110 	if (hw->phy.media_type == e1000_media_type_copper) {
111 		supported = (SUPPORTED_10baseT_Half |
112 			     SUPPORTED_10baseT_Full |
113 			     SUPPORTED_100baseT_Half |
114 			     SUPPORTED_100baseT_Full |
115 			     SUPPORTED_1000baseT_Full |
116 			     SUPPORTED_Autoneg |
117 			     SUPPORTED_TP);
118 		if (hw->phy.type == e1000_phy_ife)
119 			supported &= ~SUPPORTED_1000baseT_Full;
120 		advertising = ADVERTISED_TP;
121 
122 		if (hw->mac.autoneg == 1) {
123 			advertising |= ADVERTISED_Autoneg;
124 			/* the e1000 autoneg seems to match ethtool nicely */
125 			advertising |= hw->phy.autoneg_advertised;
126 		}
127 
128 		cmd->base.port = PORT_TP;
129 		cmd->base.phy_address = hw->phy.addr;
130 	} else {
131 		supported   = (SUPPORTED_1000baseT_Full |
132 			       SUPPORTED_FIBRE |
133 			       SUPPORTED_Autoneg);
134 
135 		advertising = (ADVERTISED_1000baseT_Full |
136 			       ADVERTISED_FIBRE |
137 			       ADVERTISED_Autoneg);
138 
139 		cmd->base.port = PORT_FIBRE;
140 	}
141 
142 	speed = SPEED_UNKNOWN;
143 	cmd->base.duplex = DUPLEX_UNKNOWN;
144 
145 	if (netif_running(netdev)) {
146 		if (netif_carrier_ok(netdev)) {
147 			speed = adapter->link_speed;
148 			cmd->base.duplex = adapter->link_duplex - 1;
149 		}
150 	} else if (!pm_runtime_suspended(netdev->dev.parent)) {
151 		u32 status = er32(STATUS);
152 
153 		if (status & E1000_STATUS_LU) {
154 			if (status & E1000_STATUS_SPEED_1000)
155 				speed = SPEED_1000;
156 			else if (status & E1000_STATUS_SPEED_100)
157 				speed = SPEED_100;
158 			else
159 				speed = SPEED_10;
160 
161 			if (status & E1000_STATUS_FD)
162 				cmd->base.duplex = DUPLEX_FULL;
163 			else
164 				cmd->base.duplex = DUPLEX_HALF;
165 		}
166 	}
167 
168 	cmd->base.speed = speed;
169 	cmd->base.autoneg = ((hw->phy.media_type == e1000_media_type_fiber) ||
170 			 hw->mac.autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
171 
172 	/* MDI-X => 2; MDI =>1; Invalid =>0 */
173 	if ((hw->phy.media_type == e1000_media_type_copper) &&
174 	    netif_carrier_ok(netdev))
175 		cmd->base.eth_tp_mdix = hw->phy.is_mdix ?
176 			ETH_TP_MDI_X : ETH_TP_MDI;
177 	else
178 		cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
179 
180 	if (hw->phy.mdix == AUTO_ALL_MODES)
181 		cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
182 	else
183 		cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix;
184 
185 	if (hw->phy.media_type != e1000_media_type_copper)
186 		cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_INVALID;
187 
188 	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
189 						supported);
190 	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
191 						advertising);
192 
193 	return 0;
194 }
195 
196 static int e1000_set_spd_dplx(struct e1000_adapter *adapter, u32 spd, u8 dplx)
197 {
198 	struct e1000_mac_info *mac = &adapter->hw.mac;
199 
200 	mac->autoneg = 0;
201 
202 	/* Make sure dplx is at most 1 bit and lsb of speed is not set
203 	 * for the switch() below to work
204 	 */
205 	if ((spd & 1) || (dplx & ~1))
206 		goto err_inval;
207 
208 	/* Fiber NICs only allow 1000 gbps Full duplex */
209 	if ((adapter->hw.phy.media_type == e1000_media_type_fiber) &&
210 	    (spd != SPEED_1000) && (dplx != DUPLEX_FULL)) {
211 		goto err_inval;
212 	}
213 
214 	switch (spd + dplx) {
215 	case SPEED_10 + DUPLEX_HALF:
216 		mac->forced_speed_duplex = ADVERTISE_10_HALF;
217 		break;
218 	case SPEED_10 + DUPLEX_FULL:
219 		mac->forced_speed_duplex = ADVERTISE_10_FULL;
220 		break;
221 	case SPEED_100 + DUPLEX_HALF:
222 		mac->forced_speed_duplex = ADVERTISE_100_HALF;
223 		break;
224 	case SPEED_100 + DUPLEX_FULL:
225 		mac->forced_speed_duplex = ADVERTISE_100_FULL;
226 		break;
227 	case SPEED_1000 + DUPLEX_FULL:
228 		if (adapter->hw.phy.media_type == e1000_media_type_copper) {
229 			mac->autoneg = 1;
230 			adapter->hw.phy.autoneg_advertised =
231 				ADVERTISE_1000_FULL;
232 		} else {
233 			mac->forced_speed_duplex = ADVERTISE_1000_FULL;
234 		}
235 		break;
236 	case SPEED_1000 + DUPLEX_HALF:	/* not supported */
237 	default:
238 		goto err_inval;
239 	}
240 
241 	/* clear MDI, MDI(-X) override is only allowed when autoneg enabled */
242 	adapter->hw.phy.mdix = AUTO_ALL_MODES;
243 
244 	return 0;
245 
246 err_inval:
247 	e_err("Unsupported Speed/Duplex configuration\n");
248 	return -EINVAL;
249 }
250 
251 static int e1000_set_link_ksettings(struct net_device *netdev,
252 				    const struct ethtool_link_ksettings *cmd)
253 {
254 	struct e1000_adapter *adapter = netdev_priv(netdev);
255 	struct e1000_hw *hw = &adapter->hw;
256 	int ret_val = 0;
257 	u32 advertising;
258 
259 	ethtool_convert_link_mode_to_legacy_u32(&advertising,
260 						cmd->link_modes.advertising);
261 
262 	pm_runtime_get_sync(netdev->dev.parent);
263 
264 	/* When SoL/IDER sessions are active, autoneg/speed/duplex
265 	 * cannot be changed
266 	 */
267 	if (hw->phy.ops.check_reset_block &&
268 	    hw->phy.ops.check_reset_block(hw)) {
269 		e_err("Cannot change link characteristics when SoL/IDER is active.\n");
270 		ret_val = -EINVAL;
271 		goto out;
272 	}
273 
274 	/* MDI setting is only allowed when autoneg enabled because
275 	 * some hardware doesn't allow MDI setting when speed or
276 	 * duplex is forced.
277 	 */
278 	if (cmd->base.eth_tp_mdix_ctrl) {
279 		if (hw->phy.media_type != e1000_media_type_copper) {
280 			ret_val = -EOPNOTSUPP;
281 			goto out;
282 		}
283 
284 		if ((cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO) &&
285 		    (cmd->base.autoneg != AUTONEG_ENABLE)) {
286 			e_err("forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
287 			ret_val = -EINVAL;
288 			goto out;
289 		}
290 	}
291 
292 	while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
293 		usleep_range(1000, 2000);
294 
295 	if (cmd->base.autoneg == AUTONEG_ENABLE) {
296 		hw->mac.autoneg = 1;
297 		if (hw->phy.media_type == e1000_media_type_fiber)
298 			hw->phy.autoneg_advertised = ADVERTISED_1000baseT_Full |
299 			    ADVERTISED_FIBRE | ADVERTISED_Autoneg;
300 		else
301 			hw->phy.autoneg_advertised = advertising |
302 			    ADVERTISED_TP | ADVERTISED_Autoneg;
303 		advertising = hw->phy.autoneg_advertised;
304 		if (adapter->fc_autoneg)
305 			hw->fc.requested_mode = e1000_fc_default;
306 	} else {
307 		u32 speed = cmd->base.speed;
308 		/* calling this overrides forced MDI setting */
309 		if (e1000_set_spd_dplx(adapter, speed, cmd->base.duplex)) {
310 			ret_val = -EINVAL;
311 			goto out;
312 		}
313 	}
314 
315 	/* MDI-X => 2; MDI => 1; Auto => 3 */
316 	if (cmd->base.eth_tp_mdix_ctrl) {
317 		/* fix up the value for auto (3 => 0) as zero is mapped
318 		 * internally to auto
319 		 */
320 		if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
321 			hw->phy.mdix = AUTO_ALL_MODES;
322 		else
323 			hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl;
324 	}
325 
326 	/* reset the link */
327 	if (netif_running(adapter->netdev)) {
328 		e1000e_down(adapter, true);
329 		e1000e_up(adapter);
330 	} else {
331 		e1000e_reset(adapter);
332 	}
333 
334 out:
335 	pm_runtime_put_sync(netdev->dev.parent);
336 	clear_bit(__E1000_RESETTING, &adapter->state);
337 	return ret_val;
338 }
339 
340 static void e1000_get_pauseparam(struct net_device *netdev,
341 				 struct ethtool_pauseparam *pause)
342 {
343 	struct e1000_adapter *adapter = netdev_priv(netdev);
344 	struct e1000_hw *hw = &adapter->hw;
345 
346 	pause->autoneg =
347 	    (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
348 
349 	if (hw->fc.current_mode == e1000_fc_rx_pause) {
350 		pause->rx_pause = 1;
351 	} else if (hw->fc.current_mode == e1000_fc_tx_pause) {
352 		pause->tx_pause = 1;
353 	} else if (hw->fc.current_mode == e1000_fc_full) {
354 		pause->rx_pause = 1;
355 		pause->tx_pause = 1;
356 	}
357 }
358 
359 static int e1000_set_pauseparam(struct net_device *netdev,
360 				struct ethtool_pauseparam *pause)
361 {
362 	struct e1000_adapter *adapter = netdev_priv(netdev);
363 	struct e1000_hw *hw = &adapter->hw;
364 	int retval = 0;
365 
366 	adapter->fc_autoneg = pause->autoneg;
367 
368 	while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
369 		usleep_range(1000, 2000);
370 
371 	pm_runtime_get_sync(netdev->dev.parent);
372 
373 	if (adapter->fc_autoneg == AUTONEG_ENABLE) {
374 		hw->fc.requested_mode = e1000_fc_default;
375 		if (netif_running(adapter->netdev)) {
376 			e1000e_down(adapter, true);
377 			e1000e_up(adapter);
378 		} else {
379 			e1000e_reset(adapter);
380 		}
381 	} else {
382 		if (pause->rx_pause && pause->tx_pause)
383 			hw->fc.requested_mode = e1000_fc_full;
384 		else if (pause->rx_pause && !pause->tx_pause)
385 			hw->fc.requested_mode = e1000_fc_rx_pause;
386 		else if (!pause->rx_pause && pause->tx_pause)
387 			hw->fc.requested_mode = e1000_fc_tx_pause;
388 		else if (!pause->rx_pause && !pause->tx_pause)
389 			hw->fc.requested_mode = e1000_fc_none;
390 
391 		hw->fc.current_mode = hw->fc.requested_mode;
392 
393 		if (hw->phy.media_type == e1000_media_type_fiber) {
394 			retval = hw->mac.ops.setup_link(hw);
395 			/* implicit goto out */
396 		} else {
397 			retval = e1000e_force_mac_fc(hw);
398 			if (retval)
399 				goto out;
400 			e1000e_set_fc_watermarks(hw);
401 		}
402 	}
403 
404 out:
405 	pm_runtime_put_sync(netdev->dev.parent);
406 	clear_bit(__E1000_RESETTING, &adapter->state);
407 	return retval;
408 }
409 
410 static u32 e1000_get_msglevel(struct net_device *netdev)
411 {
412 	struct e1000_adapter *adapter = netdev_priv(netdev);
413 	return adapter->msg_enable;
414 }
415 
416 static void e1000_set_msglevel(struct net_device *netdev, u32 data)
417 {
418 	struct e1000_adapter *adapter = netdev_priv(netdev);
419 	adapter->msg_enable = data;
420 }
421 
422 static int e1000_get_regs_len(struct net_device __always_unused *netdev)
423 {
424 #define E1000_REGS_LEN 32	/* overestimate */
425 	return E1000_REGS_LEN * sizeof(u32);
426 }
427 
428 static void e1000_get_regs(struct net_device *netdev,
429 			   struct ethtool_regs *regs, void *p)
430 {
431 	struct e1000_adapter *adapter = netdev_priv(netdev);
432 	struct e1000_hw *hw = &adapter->hw;
433 	u32 *regs_buff = p;
434 	u16 phy_data;
435 
436 	pm_runtime_get_sync(netdev->dev.parent);
437 
438 	memset(p, 0, E1000_REGS_LEN * sizeof(u32));
439 
440 	regs->version = (1u << 24) |
441 			(adapter->pdev->revision << 16) |
442 			adapter->pdev->device;
443 
444 	regs_buff[0] = er32(CTRL);
445 	regs_buff[1] = er32(STATUS);
446 
447 	regs_buff[2] = er32(RCTL);
448 	regs_buff[3] = er32(RDLEN(0));
449 	regs_buff[4] = er32(RDH(0));
450 	regs_buff[5] = er32(RDT(0));
451 	regs_buff[6] = er32(RDTR);
452 
453 	regs_buff[7] = er32(TCTL);
454 	regs_buff[8] = er32(TDLEN(0));
455 	regs_buff[9] = er32(TDH(0));
456 	regs_buff[10] = er32(TDT(0));
457 	regs_buff[11] = er32(TIDV);
458 
459 	regs_buff[12] = adapter->hw.phy.type;	/* PHY type (IGP=1, M88=0) */
460 
461 	/* ethtool doesn't use anything past this point, so all this
462 	 * code is likely legacy junk for apps that may or may not exist
463 	 */
464 	if (hw->phy.type == e1000_phy_m88) {
465 		e1e_rphy(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
466 		regs_buff[13] = (u32)phy_data; /* cable length */
467 		regs_buff[14] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
468 		regs_buff[15] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
469 		regs_buff[16] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
470 		e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
471 		regs_buff[17] = (u32)phy_data; /* extended 10bt distance */
472 		regs_buff[18] = regs_buff[13]; /* cable polarity */
473 		regs_buff[19] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
474 		regs_buff[20] = regs_buff[17]; /* polarity correction */
475 		/* phy receive errors */
476 		regs_buff[22] = adapter->phy_stats.receive_errors;
477 		regs_buff[23] = regs_buff[13]; /* mdix mode */
478 	}
479 	regs_buff[21] = 0;	/* was idle_errors */
480 	e1e_rphy(hw, MII_STAT1000, &phy_data);
481 	regs_buff[24] = (u32)phy_data;	/* phy local receiver status */
482 	regs_buff[25] = regs_buff[24];	/* phy remote receiver status */
483 
484 	pm_runtime_put_sync(netdev->dev.parent);
485 }
486 
487 static int e1000_get_eeprom_len(struct net_device *netdev)
488 {
489 	struct e1000_adapter *adapter = netdev_priv(netdev);
490 	return adapter->hw.nvm.word_size * 2;
491 }
492 
493 static int e1000_get_eeprom(struct net_device *netdev,
494 			    struct ethtool_eeprom *eeprom, u8 *bytes)
495 {
496 	struct e1000_adapter *adapter = netdev_priv(netdev);
497 	struct e1000_hw *hw = &adapter->hw;
498 	u16 *eeprom_buff;
499 	int first_word;
500 	int last_word;
501 	int ret_val = 0;
502 	u16 i;
503 
504 	if (eeprom->len == 0)
505 		return -EINVAL;
506 
507 	eeprom->magic = adapter->pdev->vendor | (adapter->pdev->device << 16);
508 
509 	first_word = eeprom->offset >> 1;
510 	last_word = (eeprom->offset + eeprom->len - 1) >> 1;
511 
512 	eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
513 				    GFP_KERNEL);
514 	if (!eeprom_buff)
515 		return -ENOMEM;
516 
517 	pm_runtime_get_sync(netdev->dev.parent);
518 
519 	if (hw->nvm.type == e1000_nvm_eeprom_spi) {
520 		ret_val = e1000_read_nvm(hw, first_word,
521 					 last_word - first_word + 1,
522 					 eeprom_buff);
523 	} else {
524 		for (i = 0; i < last_word - first_word + 1; i++) {
525 			ret_val = e1000_read_nvm(hw, first_word + i, 1,
526 						 &eeprom_buff[i]);
527 			if (ret_val)
528 				break;
529 		}
530 	}
531 
532 	pm_runtime_put_sync(netdev->dev.parent);
533 
534 	if (ret_val) {
535 		/* a read error occurred, throw away the result */
536 		memset(eeprom_buff, 0xff, sizeof(u16) *
537 		       (last_word - first_word + 1));
538 	} else {
539 		/* Device's eeprom is always little-endian, word addressable */
540 		for (i = 0; i < last_word - first_word + 1; i++)
541 			le16_to_cpus(&eeprom_buff[i]);
542 	}
543 
544 	memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
545 	kfree(eeprom_buff);
546 
547 	return ret_val;
548 }
549 
550 static int e1000_set_eeprom(struct net_device *netdev,
551 			    struct ethtool_eeprom *eeprom, u8 *bytes)
552 {
553 	struct e1000_adapter *adapter = netdev_priv(netdev);
554 	struct e1000_hw *hw = &adapter->hw;
555 	u16 *eeprom_buff;
556 	void *ptr;
557 	int max_len;
558 	int first_word;
559 	int last_word;
560 	int ret_val = 0;
561 	u16 i;
562 
563 	if (eeprom->len == 0)
564 		return -EOPNOTSUPP;
565 
566 	if (eeprom->magic !=
567 	    (adapter->pdev->vendor | (adapter->pdev->device << 16)))
568 		return -EFAULT;
569 
570 	if (adapter->flags & FLAG_READ_ONLY_NVM)
571 		return -EINVAL;
572 
573 	max_len = hw->nvm.word_size * 2;
574 
575 	first_word = eeprom->offset >> 1;
576 	last_word = (eeprom->offset + eeprom->len - 1) >> 1;
577 	eeprom_buff = kmalloc(max_len, GFP_KERNEL);
578 	if (!eeprom_buff)
579 		return -ENOMEM;
580 
581 	ptr = (void *)eeprom_buff;
582 
583 	pm_runtime_get_sync(netdev->dev.parent);
584 
585 	if (eeprom->offset & 1) {
586 		/* need read/modify/write of first changed EEPROM word */
587 		/* only the second byte of the word is being modified */
588 		ret_val = e1000_read_nvm(hw, first_word, 1, &eeprom_buff[0]);
589 		ptr++;
590 	}
591 	if (((eeprom->offset + eeprom->len) & 1) && (!ret_val))
592 		/* need read/modify/write of last changed EEPROM word */
593 		/* only the first byte of the word is being modified */
594 		ret_val = e1000_read_nvm(hw, last_word, 1,
595 					 &eeprom_buff[last_word - first_word]);
596 
597 	if (ret_val)
598 		goto out;
599 
600 	/* Device's eeprom is always little-endian, word addressable */
601 	for (i = 0; i < last_word - first_word + 1; i++)
602 		le16_to_cpus(&eeprom_buff[i]);
603 
604 	memcpy(ptr, bytes, eeprom->len);
605 
606 	for (i = 0; i < last_word - first_word + 1; i++)
607 		cpu_to_le16s(&eeprom_buff[i]);
608 
609 	ret_val = e1000_write_nvm(hw, first_word,
610 				  last_word - first_word + 1, eeprom_buff);
611 
612 	if (ret_val)
613 		goto out;
614 
615 	/* Update the checksum over the first part of the EEPROM if needed
616 	 * and flush shadow RAM for applicable controllers
617 	 */
618 	if ((first_word <= NVM_CHECKSUM_REG) ||
619 	    (hw->mac.type == e1000_82583) ||
620 	    (hw->mac.type == e1000_82574) ||
621 	    (hw->mac.type == e1000_82573))
622 		ret_val = e1000e_update_nvm_checksum(hw);
623 
624 out:
625 	pm_runtime_put_sync(netdev->dev.parent);
626 	kfree(eeprom_buff);
627 	return ret_val;
628 }
629 
630 static void e1000_get_drvinfo(struct net_device *netdev,
631 			      struct ethtool_drvinfo *drvinfo)
632 {
633 	struct e1000_adapter *adapter = netdev_priv(netdev);
634 
635 	strlcpy(drvinfo->driver, e1000e_driver_name, sizeof(drvinfo->driver));
636 	strlcpy(drvinfo->version, e1000e_driver_version,
637 		sizeof(drvinfo->version));
638 
639 	/* EEPROM image version # is reported as firmware version # for
640 	 * PCI-E controllers
641 	 */
642 	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
643 		 "%d.%d-%d",
644 		 (adapter->eeprom_vers & 0xF000) >> 12,
645 		 (adapter->eeprom_vers & 0x0FF0) >> 4,
646 		 (adapter->eeprom_vers & 0x000F));
647 
648 	strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
649 		sizeof(drvinfo->bus_info));
650 }
651 
652 static void e1000_get_ringparam(struct net_device *netdev,
653 				struct ethtool_ringparam *ring)
654 {
655 	struct e1000_adapter *adapter = netdev_priv(netdev);
656 
657 	ring->rx_max_pending = E1000_MAX_RXD;
658 	ring->tx_max_pending = E1000_MAX_TXD;
659 	ring->rx_pending = adapter->rx_ring_count;
660 	ring->tx_pending = adapter->tx_ring_count;
661 }
662 
663 static int e1000_set_ringparam(struct net_device *netdev,
664 			       struct ethtool_ringparam *ring)
665 {
666 	struct e1000_adapter *adapter = netdev_priv(netdev);
667 	struct e1000_ring *temp_tx = NULL, *temp_rx = NULL;
668 	int err = 0, size = sizeof(struct e1000_ring);
669 	bool set_tx = false, set_rx = false;
670 	u16 new_rx_count, new_tx_count;
671 
672 	if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
673 		return -EINVAL;
674 
675 	new_rx_count = clamp_t(u32, ring->rx_pending, E1000_MIN_RXD,
676 			       E1000_MAX_RXD);
677 	new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
678 
679 	new_tx_count = clamp_t(u32, ring->tx_pending, E1000_MIN_TXD,
680 			       E1000_MAX_TXD);
681 	new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
682 
683 	if ((new_tx_count == adapter->tx_ring_count) &&
684 	    (new_rx_count == adapter->rx_ring_count))
685 		/* nothing to do */
686 		return 0;
687 
688 	while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
689 		usleep_range(1000, 2000);
690 
691 	if (!netif_running(adapter->netdev)) {
692 		/* Set counts now and allocate resources during open() */
693 		adapter->tx_ring->count = new_tx_count;
694 		adapter->rx_ring->count = new_rx_count;
695 		adapter->tx_ring_count = new_tx_count;
696 		adapter->rx_ring_count = new_rx_count;
697 		goto clear_reset;
698 	}
699 
700 	set_tx = (new_tx_count != adapter->tx_ring_count);
701 	set_rx = (new_rx_count != adapter->rx_ring_count);
702 
703 	/* Allocate temporary storage for ring updates */
704 	if (set_tx) {
705 		temp_tx = vmalloc(size);
706 		if (!temp_tx) {
707 			err = -ENOMEM;
708 			goto free_temp;
709 		}
710 	}
711 	if (set_rx) {
712 		temp_rx = vmalloc(size);
713 		if (!temp_rx) {
714 			err = -ENOMEM;
715 			goto free_temp;
716 		}
717 	}
718 
719 	pm_runtime_get_sync(netdev->dev.parent);
720 
721 	e1000e_down(adapter, true);
722 
723 	/* We can't just free everything and then setup again, because the
724 	 * ISRs in MSI-X mode get passed pointers to the Tx and Rx ring
725 	 * structs.  First, attempt to allocate new resources...
726 	 */
727 	if (set_tx) {
728 		memcpy(temp_tx, adapter->tx_ring, size);
729 		temp_tx->count = new_tx_count;
730 		err = e1000e_setup_tx_resources(temp_tx);
731 		if (err)
732 			goto err_setup;
733 	}
734 	if (set_rx) {
735 		memcpy(temp_rx, adapter->rx_ring, size);
736 		temp_rx->count = new_rx_count;
737 		err = e1000e_setup_rx_resources(temp_rx);
738 		if (err)
739 			goto err_setup_rx;
740 	}
741 
742 	/* ...then free the old resources and copy back any new ring data */
743 	if (set_tx) {
744 		e1000e_free_tx_resources(adapter->tx_ring);
745 		memcpy(adapter->tx_ring, temp_tx, size);
746 		adapter->tx_ring_count = new_tx_count;
747 	}
748 	if (set_rx) {
749 		e1000e_free_rx_resources(adapter->rx_ring);
750 		memcpy(adapter->rx_ring, temp_rx, size);
751 		adapter->rx_ring_count = new_rx_count;
752 	}
753 
754 err_setup_rx:
755 	if (err && set_tx)
756 		e1000e_free_tx_resources(temp_tx);
757 err_setup:
758 	e1000e_up(adapter);
759 	pm_runtime_put_sync(netdev->dev.parent);
760 free_temp:
761 	vfree(temp_tx);
762 	vfree(temp_rx);
763 clear_reset:
764 	clear_bit(__E1000_RESETTING, &adapter->state);
765 	return err;
766 }
767 
768 static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data,
769 			     int reg, int offset, u32 mask, u32 write)
770 {
771 	u32 pat, val;
772 	static const u32 test[] = {
773 		0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
774 	};
775 	for (pat = 0; pat < ARRAY_SIZE(test); pat++) {
776 		E1000_WRITE_REG_ARRAY(&adapter->hw, reg, offset,
777 				      (test[pat] & write));
778 		val = E1000_READ_REG_ARRAY(&adapter->hw, reg, offset);
779 		if (val != (test[pat] & write & mask)) {
780 			e_err("pattern test failed (reg 0x%05X): got 0x%08X expected 0x%08X\n",
781 			      reg + (offset << 2), val,
782 			      (test[pat] & write & mask));
783 			*data = reg;
784 			return true;
785 		}
786 	}
787 	return false;
788 }
789 
790 static bool reg_set_and_check(struct e1000_adapter *adapter, u64 *data,
791 			      int reg, u32 mask, u32 write)
792 {
793 	u32 val;
794 
795 	__ew32(&adapter->hw, reg, write & mask);
796 	val = __er32(&adapter->hw, reg);
797 	if ((write & mask) != (val & mask)) {
798 		e_err("set/check test failed (reg 0x%05X): got 0x%08X expected 0x%08X\n",
799 		      reg, (val & mask), (write & mask));
800 		*data = reg;
801 		return true;
802 	}
803 	return false;
804 }
805 
806 #define REG_PATTERN_TEST_ARRAY(reg, offset, mask, write)                       \
807 	do {                                                                   \
808 		if (reg_pattern_test(adapter, data, reg, offset, mask, write)) \
809 			return 1;                                              \
810 	} while (0)
811 #define REG_PATTERN_TEST(reg, mask, write)                                     \
812 	REG_PATTERN_TEST_ARRAY(reg, 0, mask, write)
813 
814 #define REG_SET_AND_CHECK(reg, mask, write)                                    \
815 	do {                                                                   \
816 		if (reg_set_and_check(adapter, data, reg, mask, write))        \
817 			return 1;                                              \
818 	} while (0)
819 
820 static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
821 {
822 	struct e1000_hw *hw = &adapter->hw;
823 	struct e1000_mac_info *mac = &adapter->hw.mac;
824 	u32 value;
825 	u32 before;
826 	u32 after;
827 	u32 i;
828 	u32 toggle;
829 	u32 mask;
830 	u32 wlock_mac = 0;
831 
832 	/* The status register is Read Only, so a write should fail.
833 	 * Some bits that get toggled are ignored.  There are several bits
834 	 * on newer hardware that are r/w.
835 	 */
836 	switch (mac->type) {
837 	case e1000_82571:
838 	case e1000_82572:
839 	case e1000_80003es2lan:
840 		toggle = 0x7FFFF3FF;
841 		break;
842 	default:
843 		toggle = 0x7FFFF033;
844 		break;
845 	}
846 
847 	before = er32(STATUS);
848 	value = (er32(STATUS) & toggle);
849 	ew32(STATUS, toggle);
850 	after = er32(STATUS) & toggle;
851 	if (value != after) {
852 		e_err("failed STATUS register test got: 0x%08X expected: 0x%08X\n",
853 		      after, value);
854 		*data = 1;
855 		return 1;
856 	}
857 	/* restore previous status */
858 	ew32(STATUS, before);
859 
860 	if (!(adapter->flags & FLAG_IS_ICH)) {
861 		REG_PATTERN_TEST(E1000_FCAL, 0xFFFFFFFF, 0xFFFFFFFF);
862 		REG_PATTERN_TEST(E1000_FCAH, 0x0000FFFF, 0xFFFFFFFF);
863 		REG_PATTERN_TEST(E1000_FCT, 0x0000FFFF, 0xFFFFFFFF);
864 		REG_PATTERN_TEST(E1000_VET, 0x0000FFFF, 0xFFFFFFFF);
865 	}
866 
867 	REG_PATTERN_TEST(E1000_RDTR, 0x0000FFFF, 0xFFFFFFFF);
868 	REG_PATTERN_TEST(E1000_RDBAH(0), 0xFFFFFFFF, 0xFFFFFFFF);
869 	REG_PATTERN_TEST(E1000_RDLEN(0), 0x000FFF80, 0x000FFFFF);
870 	REG_PATTERN_TEST(E1000_RDH(0), 0x0000FFFF, 0x0000FFFF);
871 	REG_PATTERN_TEST(E1000_RDT(0), 0x0000FFFF, 0x0000FFFF);
872 	REG_PATTERN_TEST(E1000_FCRTH, 0x0000FFF8, 0x0000FFF8);
873 	REG_PATTERN_TEST(E1000_FCTTV, 0x0000FFFF, 0x0000FFFF);
874 	REG_PATTERN_TEST(E1000_TIPG, 0x3FFFFFFF, 0x3FFFFFFF);
875 	REG_PATTERN_TEST(E1000_TDBAH(0), 0xFFFFFFFF, 0xFFFFFFFF);
876 	REG_PATTERN_TEST(E1000_TDLEN(0), 0x000FFF80, 0x000FFFFF);
877 
878 	REG_SET_AND_CHECK(E1000_RCTL, 0xFFFFFFFF, 0x00000000);
879 
880 	before = ((adapter->flags & FLAG_IS_ICH) ? 0x06C3B33E : 0x06DFB3FE);
881 	REG_SET_AND_CHECK(E1000_RCTL, before, 0x003FFFFB);
882 	REG_SET_AND_CHECK(E1000_TCTL, 0xFFFFFFFF, 0x00000000);
883 
884 	REG_SET_AND_CHECK(E1000_RCTL, before, 0xFFFFFFFF);
885 	REG_PATTERN_TEST(E1000_RDBAL(0), 0xFFFFFFF0, 0xFFFFFFFF);
886 	if (!(adapter->flags & FLAG_IS_ICH))
887 		REG_PATTERN_TEST(E1000_TXCW, 0xC000FFFF, 0x0000FFFF);
888 	REG_PATTERN_TEST(E1000_TDBAL(0), 0xFFFFFFF0, 0xFFFFFFFF);
889 	REG_PATTERN_TEST(E1000_TIDV, 0x0000FFFF, 0x0000FFFF);
890 	mask = 0x8003FFFF;
891 	switch (mac->type) {
892 	case e1000_ich10lan:
893 	case e1000_pchlan:
894 	case e1000_pch2lan:
895 	case e1000_pch_lpt:
896 	case e1000_pch_spt:
897 	case e1000_pch_cnp:
898 		/* fall through */
899 	case e1000_pch_tgp:
900 		mask |= BIT(18);
901 		break;
902 	default:
903 		break;
904 	}
905 
906 	if (mac->type >= e1000_pch_lpt)
907 		wlock_mac = (er32(FWSM) & E1000_FWSM_WLOCK_MAC_MASK) >>
908 		    E1000_FWSM_WLOCK_MAC_SHIFT;
909 
910 	for (i = 0; i < mac->rar_entry_count; i++) {
911 		if (mac->type >= e1000_pch_lpt) {
912 			/* Cannot test write-protected SHRAL[n] registers */
913 			if ((wlock_mac == 1) || (wlock_mac && (i > wlock_mac)))
914 				continue;
915 
916 			/* SHRAH[9] different than the others */
917 			if (i == 10)
918 				mask |= BIT(30);
919 			else
920 				mask &= ~BIT(30);
921 		}
922 		if (mac->type == e1000_pch2lan) {
923 			/* SHRAH[0,1,2] different than previous */
924 			if (i == 1)
925 				mask &= 0xFFF4FFFF;
926 			/* SHRAH[3] different than SHRAH[0,1,2] */
927 			if (i == 4)
928 				mask |= BIT(30);
929 			/* RAR[1-6] owned by management engine - skipping */
930 			if (i > 0)
931 				i += 6;
932 		}
933 
934 		REG_PATTERN_TEST_ARRAY(E1000_RA, ((i << 1) + 1), mask,
935 				       0xFFFFFFFF);
936 		/* reset index to actual value */
937 		if ((mac->type == e1000_pch2lan) && (i > 6))
938 			i -= 6;
939 	}
940 
941 	for (i = 0; i < mac->mta_reg_count; i++)
942 		REG_PATTERN_TEST_ARRAY(E1000_MTA, i, 0xFFFFFFFF, 0xFFFFFFFF);
943 
944 	*data = 0;
945 
946 	return 0;
947 }
948 
949 static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data)
950 {
951 	u16 temp;
952 	u16 checksum = 0;
953 	u16 i;
954 
955 	*data = 0;
956 	/* Read and add up the contents of the EEPROM */
957 	for (i = 0; i < (NVM_CHECKSUM_REG + 1); i++) {
958 		if ((e1000_read_nvm(&adapter->hw, i, 1, &temp)) < 0) {
959 			*data = 1;
960 			return *data;
961 		}
962 		checksum += temp;
963 	}
964 
965 	/* If Checksum is not Correct return error else test passed */
966 	if ((checksum != (u16)NVM_SUM) && !(*data))
967 		*data = 2;
968 
969 	return *data;
970 }
971 
972 static irqreturn_t e1000_test_intr(int __always_unused irq, void *data)
973 {
974 	struct net_device *netdev = (struct net_device *)data;
975 	struct e1000_adapter *adapter = netdev_priv(netdev);
976 	struct e1000_hw *hw = &adapter->hw;
977 
978 	adapter->test_icr |= er32(ICR);
979 
980 	return IRQ_HANDLED;
981 }
982 
983 static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
984 {
985 	struct net_device *netdev = adapter->netdev;
986 	struct e1000_hw *hw = &adapter->hw;
987 	u32 mask;
988 	u32 shared_int = 1;
989 	u32 irq = adapter->pdev->irq;
990 	int i;
991 	int ret_val = 0;
992 	int int_mode = E1000E_INT_MODE_LEGACY;
993 
994 	*data = 0;
995 
996 	/* NOTE: we don't test MSI/MSI-X interrupts here, yet */
997 	if (adapter->int_mode == E1000E_INT_MODE_MSIX) {
998 		int_mode = adapter->int_mode;
999 		e1000e_reset_interrupt_capability(adapter);
1000 		adapter->int_mode = E1000E_INT_MODE_LEGACY;
1001 		e1000e_set_interrupt_capability(adapter);
1002 	}
1003 	/* Hook up test interrupt handler just for this test */
1004 	if (!request_irq(irq, e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,
1005 			 netdev)) {
1006 		shared_int = 0;
1007 	} else if (request_irq(irq, e1000_test_intr, IRQF_SHARED, netdev->name,
1008 			       netdev)) {
1009 		*data = 1;
1010 		ret_val = -1;
1011 		goto out;
1012 	}
1013 	e_info("testing %s interrupt\n", (shared_int ? "shared" : "unshared"));
1014 
1015 	/* Disable all the interrupts */
1016 	ew32(IMC, 0xFFFFFFFF);
1017 	e1e_flush();
1018 	usleep_range(10000, 11000);
1019 
1020 	/* Test each interrupt */
1021 	for (i = 0; i < 10; i++) {
1022 		/* Interrupt to test */
1023 		mask = BIT(i);
1024 
1025 		if (adapter->flags & FLAG_IS_ICH) {
1026 			switch (mask) {
1027 			case E1000_ICR_RXSEQ:
1028 				continue;
1029 			case 0x00000100:
1030 				if (adapter->hw.mac.type == e1000_ich8lan ||
1031 				    adapter->hw.mac.type == e1000_ich9lan)
1032 					continue;
1033 				break;
1034 			default:
1035 				break;
1036 			}
1037 		}
1038 
1039 		if (!shared_int) {
1040 			/* Disable the interrupt to be reported in
1041 			 * the cause register and then force the same
1042 			 * interrupt and see if one gets posted.  If
1043 			 * an interrupt was posted to the bus, the
1044 			 * test failed.
1045 			 */
1046 			adapter->test_icr = 0;
1047 			ew32(IMC, mask);
1048 			ew32(ICS, mask);
1049 			e1e_flush();
1050 			usleep_range(10000, 11000);
1051 
1052 			if (adapter->test_icr & mask) {
1053 				*data = 3;
1054 				break;
1055 			}
1056 		}
1057 
1058 		/* Enable the interrupt to be reported in
1059 		 * the cause register and then force the same
1060 		 * interrupt and see if one gets posted.  If
1061 		 * an interrupt was not posted to the bus, the
1062 		 * test failed.
1063 		 */
1064 		adapter->test_icr = 0;
1065 		ew32(IMS, mask);
1066 		ew32(ICS, mask);
1067 		e1e_flush();
1068 		usleep_range(10000, 11000);
1069 
1070 		if (!(adapter->test_icr & mask)) {
1071 			*data = 4;
1072 			break;
1073 		}
1074 
1075 		if (!shared_int) {
1076 			/* Disable the other interrupts to be reported in
1077 			 * the cause register and then force the other
1078 			 * interrupts and see if any get posted.  If
1079 			 * an interrupt was posted to the bus, the
1080 			 * test failed.
1081 			 */
1082 			adapter->test_icr = 0;
1083 			ew32(IMC, ~mask & 0x00007FFF);
1084 			ew32(ICS, ~mask & 0x00007FFF);
1085 			e1e_flush();
1086 			usleep_range(10000, 11000);
1087 
1088 			if (adapter->test_icr) {
1089 				*data = 5;
1090 				break;
1091 			}
1092 		}
1093 	}
1094 
1095 	/* Disable all the interrupts */
1096 	ew32(IMC, 0xFFFFFFFF);
1097 	e1e_flush();
1098 	usleep_range(10000, 11000);
1099 
1100 	/* Unhook test interrupt handler */
1101 	free_irq(irq, netdev);
1102 
1103 out:
1104 	if (int_mode == E1000E_INT_MODE_MSIX) {
1105 		e1000e_reset_interrupt_capability(adapter);
1106 		adapter->int_mode = int_mode;
1107 		e1000e_set_interrupt_capability(adapter);
1108 	}
1109 
1110 	return ret_val;
1111 }
1112 
1113 static void e1000_free_desc_rings(struct e1000_adapter *adapter)
1114 {
1115 	struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1116 	struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1117 	struct pci_dev *pdev = adapter->pdev;
1118 	struct e1000_buffer *buffer_info;
1119 	int i;
1120 
1121 	if (tx_ring->desc && tx_ring->buffer_info) {
1122 		for (i = 0; i < tx_ring->count; i++) {
1123 			buffer_info = &tx_ring->buffer_info[i];
1124 
1125 			if (buffer_info->dma)
1126 				dma_unmap_single(&pdev->dev,
1127 						 buffer_info->dma,
1128 						 buffer_info->length,
1129 						 DMA_TO_DEVICE);
1130 			dev_kfree_skb(buffer_info->skb);
1131 		}
1132 	}
1133 
1134 	if (rx_ring->desc && rx_ring->buffer_info) {
1135 		for (i = 0; i < rx_ring->count; i++) {
1136 			buffer_info = &rx_ring->buffer_info[i];
1137 
1138 			if (buffer_info->dma)
1139 				dma_unmap_single(&pdev->dev,
1140 						 buffer_info->dma,
1141 						 2048, DMA_FROM_DEVICE);
1142 			dev_kfree_skb(buffer_info->skb);
1143 		}
1144 	}
1145 
1146 	if (tx_ring->desc) {
1147 		dma_free_coherent(&pdev->dev, tx_ring->size, tx_ring->desc,
1148 				  tx_ring->dma);
1149 		tx_ring->desc = NULL;
1150 	}
1151 	if (rx_ring->desc) {
1152 		dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc,
1153 				  rx_ring->dma);
1154 		rx_ring->desc = NULL;
1155 	}
1156 
1157 	kfree(tx_ring->buffer_info);
1158 	tx_ring->buffer_info = NULL;
1159 	kfree(rx_ring->buffer_info);
1160 	rx_ring->buffer_info = NULL;
1161 }
1162 
1163 static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
1164 {
1165 	struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1166 	struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1167 	struct pci_dev *pdev = adapter->pdev;
1168 	struct e1000_hw *hw = &adapter->hw;
1169 	u32 rctl;
1170 	int i;
1171 	int ret_val;
1172 
1173 	/* Setup Tx descriptor ring and Tx buffers */
1174 
1175 	if (!tx_ring->count)
1176 		tx_ring->count = E1000_DEFAULT_TXD;
1177 
1178 	tx_ring->buffer_info = kcalloc(tx_ring->count,
1179 				       sizeof(struct e1000_buffer), GFP_KERNEL);
1180 	if (!tx_ring->buffer_info) {
1181 		ret_val = 1;
1182 		goto err_nomem;
1183 	}
1184 
1185 	tx_ring->size = tx_ring->count * sizeof(struct e1000_tx_desc);
1186 	tx_ring->size = ALIGN(tx_ring->size, 4096);
1187 	tx_ring->desc = dma_alloc_coherent(&pdev->dev, tx_ring->size,
1188 					   &tx_ring->dma, GFP_KERNEL);
1189 	if (!tx_ring->desc) {
1190 		ret_val = 2;
1191 		goto err_nomem;
1192 	}
1193 	tx_ring->next_to_use = 0;
1194 	tx_ring->next_to_clean = 0;
1195 
1196 	ew32(TDBAL(0), ((u64)tx_ring->dma & 0x00000000FFFFFFFF));
1197 	ew32(TDBAH(0), ((u64)tx_ring->dma >> 32));
1198 	ew32(TDLEN(0), tx_ring->count * sizeof(struct e1000_tx_desc));
1199 	ew32(TDH(0), 0);
1200 	ew32(TDT(0), 0);
1201 	ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN | E1000_TCTL_MULR |
1202 	     E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |
1203 	     E1000_COLLISION_DISTANCE << E1000_COLD_SHIFT);
1204 
1205 	for (i = 0; i < tx_ring->count; i++) {
1206 		struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*tx_ring, i);
1207 		struct sk_buff *skb;
1208 		unsigned int skb_size = 1024;
1209 
1210 		skb = alloc_skb(skb_size, GFP_KERNEL);
1211 		if (!skb) {
1212 			ret_val = 3;
1213 			goto err_nomem;
1214 		}
1215 		skb_put(skb, skb_size);
1216 		tx_ring->buffer_info[i].skb = skb;
1217 		tx_ring->buffer_info[i].length = skb->len;
1218 		tx_ring->buffer_info[i].dma =
1219 		    dma_map_single(&pdev->dev, skb->data, skb->len,
1220 				   DMA_TO_DEVICE);
1221 		if (dma_mapping_error(&pdev->dev,
1222 				      tx_ring->buffer_info[i].dma)) {
1223 			ret_val = 4;
1224 			goto err_nomem;
1225 		}
1226 		tx_desc->buffer_addr = cpu_to_le64(tx_ring->buffer_info[i].dma);
1227 		tx_desc->lower.data = cpu_to_le32(skb->len);
1228 		tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |
1229 						   E1000_TXD_CMD_IFCS |
1230 						   E1000_TXD_CMD_RS);
1231 		tx_desc->upper.data = 0;
1232 	}
1233 
1234 	/* Setup Rx descriptor ring and Rx buffers */
1235 
1236 	if (!rx_ring->count)
1237 		rx_ring->count = E1000_DEFAULT_RXD;
1238 
1239 	rx_ring->buffer_info = kcalloc(rx_ring->count,
1240 				       sizeof(struct e1000_buffer), GFP_KERNEL);
1241 	if (!rx_ring->buffer_info) {
1242 		ret_val = 5;
1243 		goto err_nomem;
1244 	}
1245 
1246 	rx_ring->size = rx_ring->count * sizeof(union e1000_rx_desc_extended);
1247 	rx_ring->desc = dma_alloc_coherent(&pdev->dev, rx_ring->size,
1248 					   &rx_ring->dma, GFP_KERNEL);
1249 	if (!rx_ring->desc) {
1250 		ret_val = 6;
1251 		goto err_nomem;
1252 	}
1253 	rx_ring->next_to_use = 0;
1254 	rx_ring->next_to_clean = 0;
1255 
1256 	rctl = er32(RCTL);
1257 	if (!(adapter->flags2 & FLAG2_NO_DISABLE_RX))
1258 		ew32(RCTL, rctl & ~E1000_RCTL_EN);
1259 	ew32(RDBAL(0), ((u64)rx_ring->dma & 0xFFFFFFFF));
1260 	ew32(RDBAH(0), ((u64)rx_ring->dma >> 32));
1261 	ew32(RDLEN(0), rx_ring->size);
1262 	ew32(RDH(0), 0);
1263 	ew32(RDT(0), 0);
1264 	rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
1265 	    E1000_RCTL_UPE | E1000_RCTL_MPE | E1000_RCTL_LPE |
1266 	    E1000_RCTL_SBP | E1000_RCTL_SECRC |
1267 	    E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
1268 	    (adapter->hw.mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
1269 	ew32(RCTL, rctl);
1270 
1271 	for (i = 0; i < rx_ring->count; i++) {
1272 		union e1000_rx_desc_extended *rx_desc;
1273 		struct sk_buff *skb;
1274 
1275 		skb = alloc_skb(2048 + NET_IP_ALIGN, GFP_KERNEL);
1276 		if (!skb) {
1277 			ret_val = 7;
1278 			goto err_nomem;
1279 		}
1280 		skb_reserve(skb, NET_IP_ALIGN);
1281 		rx_ring->buffer_info[i].skb = skb;
1282 		rx_ring->buffer_info[i].dma =
1283 		    dma_map_single(&pdev->dev, skb->data, 2048,
1284 				   DMA_FROM_DEVICE);
1285 		if (dma_mapping_error(&pdev->dev,
1286 				      rx_ring->buffer_info[i].dma)) {
1287 			ret_val = 8;
1288 			goto err_nomem;
1289 		}
1290 		rx_desc = E1000_RX_DESC_EXT(*rx_ring, i);
1291 		rx_desc->read.buffer_addr =
1292 		    cpu_to_le64(rx_ring->buffer_info[i].dma);
1293 		memset(skb->data, 0x00, skb->len);
1294 	}
1295 
1296 	return 0;
1297 
1298 err_nomem:
1299 	e1000_free_desc_rings(adapter);
1300 	return ret_val;
1301 }
1302 
1303 static void e1000_phy_disable_receiver(struct e1000_adapter *adapter)
1304 {
1305 	/* Write out to PHY registers 29 and 30 to disable the Receiver. */
1306 	e1e_wphy(&adapter->hw, 29, 0x001F);
1307 	e1e_wphy(&adapter->hw, 30, 0x8FFC);
1308 	e1e_wphy(&adapter->hw, 29, 0x001A);
1309 	e1e_wphy(&adapter->hw, 30, 0x8FF0);
1310 }
1311 
1312 static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
1313 {
1314 	struct e1000_hw *hw = &adapter->hw;
1315 	u32 ctrl_reg = 0;
1316 	u16 phy_reg = 0;
1317 	s32 ret_val = 0;
1318 
1319 	hw->mac.autoneg = 0;
1320 
1321 	if (hw->phy.type == e1000_phy_ife) {
1322 		/* force 100, set loopback */
1323 		e1e_wphy(hw, MII_BMCR, 0x6100);
1324 
1325 		/* Now set up the MAC to the same speed/duplex as the PHY. */
1326 		ctrl_reg = er32(CTRL);
1327 		ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1328 		ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1329 			     E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1330 			     E1000_CTRL_SPD_100 |/* Force Speed to 100 */
1331 			     E1000_CTRL_FD);	 /* Force Duplex to FULL */
1332 
1333 		ew32(CTRL, ctrl_reg);
1334 		e1e_flush();
1335 		usleep_range(500, 1000);
1336 
1337 		return 0;
1338 	}
1339 
1340 	/* Specific PHY configuration for loopback */
1341 	switch (hw->phy.type) {
1342 	case e1000_phy_m88:
1343 		/* Auto-MDI/MDIX Off */
1344 		e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, 0x0808);
1345 		/* reset to update Auto-MDI/MDIX */
1346 		e1e_wphy(hw, MII_BMCR, 0x9140);
1347 		/* autoneg off */
1348 		e1e_wphy(hw, MII_BMCR, 0x8140);
1349 		break;
1350 	case e1000_phy_gg82563:
1351 		e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x1CC);
1352 		break;
1353 	case e1000_phy_bm:
1354 		/* Set Default MAC Interface speed to 1GB */
1355 		e1e_rphy(hw, PHY_REG(2, 21), &phy_reg);
1356 		phy_reg &= ~0x0007;
1357 		phy_reg |= 0x006;
1358 		e1e_wphy(hw, PHY_REG(2, 21), phy_reg);
1359 		/* Assert SW reset for above settings to take effect */
1360 		hw->phy.ops.commit(hw);
1361 		usleep_range(1000, 2000);
1362 		/* Force Full Duplex */
1363 		e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
1364 		e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x000C);
1365 		/* Set Link Up (in force link) */
1366 		e1e_rphy(hw, PHY_REG(776, 16), &phy_reg);
1367 		e1e_wphy(hw, PHY_REG(776, 16), phy_reg | 0x0040);
1368 		/* Force Link */
1369 		e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
1370 		e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x0040);
1371 		/* Set Early Link Enable */
1372 		e1e_rphy(hw, PHY_REG(769, 20), &phy_reg);
1373 		e1e_wphy(hw, PHY_REG(769, 20), phy_reg | 0x0400);
1374 		break;
1375 	case e1000_phy_82577:
1376 	case e1000_phy_82578:
1377 		/* Workaround: K1 must be disabled for stable 1Gbps operation */
1378 		ret_val = hw->phy.ops.acquire(hw);
1379 		if (ret_val) {
1380 			e_err("Cannot setup 1Gbps loopback.\n");
1381 			return ret_val;
1382 		}
1383 		e1000_configure_k1_ich8lan(hw, false);
1384 		hw->phy.ops.release(hw);
1385 		break;
1386 	case e1000_phy_82579:
1387 		/* Disable PHY energy detect power down */
1388 		e1e_rphy(hw, PHY_REG(0, 21), &phy_reg);
1389 		e1e_wphy(hw, PHY_REG(0, 21), phy_reg & ~BIT(3));
1390 		/* Disable full chip energy detect */
1391 		e1e_rphy(hw, PHY_REG(776, 18), &phy_reg);
1392 		e1e_wphy(hw, PHY_REG(776, 18), phy_reg | 1);
1393 		/* Enable loopback on the PHY */
1394 		e1e_wphy(hw, I82577_PHY_LBK_CTRL, 0x8001);
1395 		break;
1396 	default:
1397 		break;
1398 	}
1399 
1400 	/* force 1000, set loopback */
1401 	e1e_wphy(hw, MII_BMCR, 0x4140);
1402 	msleep(250);
1403 
1404 	/* Now set up the MAC to the same speed/duplex as the PHY. */
1405 	ctrl_reg = er32(CTRL);
1406 	ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1407 	ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1408 		     E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1409 		     E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
1410 		     E1000_CTRL_FD);	 /* Force Duplex to FULL */
1411 
1412 	if (adapter->flags & FLAG_IS_ICH)
1413 		ctrl_reg |= E1000_CTRL_SLU;	/* Set Link Up */
1414 
1415 	if (hw->phy.media_type == e1000_media_type_copper &&
1416 	    hw->phy.type == e1000_phy_m88) {
1417 		ctrl_reg |= E1000_CTRL_ILOS;	/* Invert Loss of Signal */
1418 	} else {
1419 		/* Set the ILOS bit on the fiber Nic if half duplex link is
1420 		 * detected.
1421 		 */
1422 		if ((er32(STATUS) & E1000_STATUS_FD) == 0)
1423 			ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU);
1424 	}
1425 
1426 	ew32(CTRL, ctrl_reg);
1427 
1428 	/* Disable the receiver on the PHY so when a cable is plugged in, the
1429 	 * PHY does not begin to autoneg when a cable is reconnected to the NIC.
1430 	 */
1431 	if (hw->phy.type == e1000_phy_m88)
1432 		e1000_phy_disable_receiver(adapter);
1433 
1434 	usleep_range(500, 1000);
1435 
1436 	return 0;
1437 }
1438 
1439 static int e1000_set_82571_fiber_loopback(struct e1000_adapter *adapter)
1440 {
1441 	struct e1000_hw *hw = &adapter->hw;
1442 	u32 ctrl = er32(CTRL);
1443 	int link;
1444 
1445 	/* special requirements for 82571/82572 fiber adapters */
1446 
1447 	/* jump through hoops to make sure link is up because serdes
1448 	 * link is hardwired up
1449 	 */
1450 	ctrl |= E1000_CTRL_SLU;
1451 	ew32(CTRL, ctrl);
1452 
1453 	/* disable autoneg */
1454 	ctrl = er32(TXCW);
1455 	ctrl &= ~BIT(31);
1456 	ew32(TXCW, ctrl);
1457 
1458 	link = (er32(STATUS) & E1000_STATUS_LU);
1459 
1460 	if (!link) {
1461 		/* set invert loss of signal */
1462 		ctrl = er32(CTRL);
1463 		ctrl |= E1000_CTRL_ILOS;
1464 		ew32(CTRL, ctrl);
1465 	}
1466 
1467 	/* special write to serdes control register to enable SerDes analog
1468 	 * loopback
1469 	 */
1470 	ew32(SCTL, E1000_SCTL_ENABLE_SERDES_LOOPBACK);
1471 	e1e_flush();
1472 	usleep_range(10000, 11000);
1473 
1474 	return 0;
1475 }
1476 
1477 /* only call this for fiber/serdes connections to es2lan */
1478 static int e1000_set_es2lan_mac_loopback(struct e1000_adapter *adapter)
1479 {
1480 	struct e1000_hw *hw = &adapter->hw;
1481 	u32 ctrlext = er32(CTRL_EXT);
1482 	u32 ctrl = er32(CTRL);
1483 
1484 	/* save CTRL_EXT to restore later, reuse an empty variable (unused
1485 	 * on mac_type 80003es2lan)
1486 	 */
1487 	adapter->tx_fifo_head = ctrlext;
1488 
1489 	/* clear the serdes mode bits, putting the device into mac loopback */
1490 	ctrlext &= ~E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES;
1491 	ew32(CTRL_EXT, ctrlext);
1492 
1493 	/* force speed to 1000/FD, link up */
1494 	ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100);
1495 	ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX |
1496 		 E1000_CTRL_SPD_1000 | E1000_CTRL_FD);
1497 	ew32(CTRL, ctrl);
1498 
1499 	/* set mac loopback */
1500 	ctrl = er32(RCTL);
1501 	ctrl |= E1000_RCTL_LBM_MAC;
1502 	ew32(RCTL, ctrl);
1503 
1504 	/* set testing mode parameters (no need to reset later) */
1505 #define KMRNCTRLSTA_OPMODE (0x1F << 16)
1506 #define KMRNCTRLSTA_OPMODE_1GB_FD_GMII 0x0582
1507 	ew32(KMRNCTRLSTA,
1508 	     (KMRNCTRLSTA_OPMODE | KMRNCTRLSTA_OPMODE_1GB_FD_GMII));
1509 
1510 	return 0;
1511 }
1512 
1513 static int e1000_setup_loopback_test(struct e1000_adapter *adapter)
1514 {
1515 	struct e1000_hw *hw = &adapter->hw;
1516 	u32 rctl, fext_nvm11, tarc0;
1517 
1518 	if (hw->mac.type >= e1000_pch_spt) {
1519 		fext_nvm11 = er32(FEXTNVM11);
1520 		fext_nvm11 |= E1000_FEXTNVM11_DISABLE_MULR_FIX;
1521 		ew32(FEXTNVM11, fext_nvm11);
1522 		tarc0 = er32(TARC(0));
1523 		/* clear bits 28 & 29 (control of MULR concurrent requests) */
1524 		tarc0 &= 0xcfffffff;
1525 		/* set bit 29 (value of MULR requests is now 2) */
1526 		tarc0 |= 0x20000000;
1527 		ew32(TARC(0), tarc0);
1528 	}
1529 	if (hw->phy.media_type == e1000_media_type_fiber ||
1530 	    hw->phy.media_type == e1000_media_type_internal_serdes) {
1531 		switch (hw->mac.type) {
1532 		case e1000_80003es2lan:
1533 			return e1000_set_es2lan_mac_loopback(adapter);
1534 		case e1000_82571:
1535 		case e1000_82572:
1536 			return e1000_set_82571_fiber_loopback(adapter);
1537 		default:
1538 			rctl = er32(RCTL);
1539 			rctl |= E1000_RCTL_LBM_TCVR;
1540 			ew32(RCTL, rctl);
1541 			return 0;
1542 		}
1543 	} else if (hw->phy.media_type == e1000_media_type_copper) {
1544 		return e1000_integrated_phy_loopback(adapter);
1545 	}
1546 
1547 	return 7;
1548 }
1549 
1550 static void e1000_loopback_cleanup(struct e1000_adapter *adapter)
1551 {
1552 	struct e1000_hw *hw = &adapter->hw;
1553 	u32 rctl, fext_nvm11, tarc0;
1554 	u16 phy_reg;
1555 
1556 	rctl = er32(RCTL);
1557 	rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
1558 	ew32(RCTL, rctl);
1559 
1560 	switch (hw->mac.type) {
1561 	case e1000_pch_spt:
1562 	case e1000_pch_cnp:
1563 	case e1000_pch_tgp:
1564 		fext_nvm11 = er32(FEXTNVM11);
1565 		fext_nvm11 &= ~E1000_FEXTNVM11_DISABLE_MULR_FIX;
1566 		ew32(FEXTNVM11, fext_nvm11);
1567 		tarc0 = er32(TARC(0));
1568 		/* clear bits 28 & 29 (control of MULR concurrent requests) */
1569 		/* set bit 29 (value of MULR requests is now 0) */
1570 		tarc0 &= 0xcfffffff;
1571 		ew32(TARC(0), tarc0);
1572 		/* fall through */
1573 	case e1000_80003es2lan:
1574 		if (hw->phy.media_type == e1000_media_type_fiber ||
1575 		    hw->phy.media_type == e1000_media_type_internal_serdes) {
1576 			/* restore CTRL_EXT, stealing space from tx_fifo_head */
1577 			ew32(CTRL_EXT, adapter->tx_fifo_head);
1578 			adapter->tx_fifo_head = 0;
1579 		}
1580 		/* fall through */
1581 	case e1000_82571:
1582 	case e1000_82572:
1583 		if (hw->phy.media_type == e1000_media_type_fiber ||
1584 		    hw->phy.media_type == e1000_media_type_internal_serdes) {
1585 			ew32(SCTL, E1000_SCTL_DISABLE_SERDES_LOOPBACK);
1586 			e1e_flush();
1587 			usleep_range(10000, 11000);
1588 			break;
1589 		}
1590 		/* Fall Through */
1591 	default:
1592 		hw->mac.autoneg = 1;
1593 		if (hw->phy.type == e1000_phy_gg82563)
1594 			e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x180);
1595 		e1e_rphy(hw, MII_BMCR, &phy_reg);
1596 		if (phy_reg & BMCR_LOOPBACK) {
1597 			phy_reg &= ~BMCR_LOOPBACK;
1598 			e1e_wphy(hw, MII_BMCR, phy_reg);
1599 			if (hw->phy.ops.commit)
1600 				hw->phy.ops.commit(hw);
1601 		}
1602 		break;
1603 	}
1604 }
1605 
1606 static void e1000_create_lbtest_frame(struct sk_buff *skb,
1607 				      unsigned int frame_size)
1608 {
1609 	memset(skb->data, 0xFF, frame_size);
1610 	frame_size &= ~1;
1611 	memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
1612 	memset(&skb->data[frame_size / 2 + 10], 0xBE, 1);
1613 	memset(&skb->data[frame_size / 2 + 12], 0xAF, 1);
1614 }
1615 
1616 static int e1000_check_lbtest_frame(struct sk_buff *skb,
1617 				    unsigned int frame_size)
1618 {
1619 	frame_size &= ~1;
1620 	if (*(skb->data + 3) == 0xFF)
1621 		if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
1622 		    (*(skb->data + frame_size / 2 + 12) == 0xAF))
1623 			return 0;
1624 	return 13;
1625 }
1626 
1627 static int e1000_run_loopback_test(struct e1000_adapter *adapter)
1628 {
1629 	struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1630 	struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1631 	struct pci_dev *pdev = adapter->pdev;
1632 	struct e1000_hw *hw = &adapter->hw;
1633 	struct e1000_buffer *buffer_info;
1634 	int i, j, k, l;
1635 	int lc;
1636 	int good_cnt;
1637 	int ret_val = 0;
1638 	unsigned long time;
1639 
1640 	ew32(RDT(0), rx_ring->count - 1);
1641 
1642 	/* Calculate the loop count based on the largest descriptor ring
1643 	 * The idea is to wrap the largest ring a number of times using 64
1644 	 * send/receive pairs during each loop
1645 	 */
1646 
1647 	if (rx_ring->count <= tx_ring->count)
1648 		lc = ((tx_ring->count / 64) * 2) + 1;
1649 	else
1650 		lc = ((rx_ring->count / 64) * 2) + 1;
1651 
1652 	k = 0;
1653 	l = 0;
1654 	/* loop count loop */
1655 	for (j = 0; j <= lc; j++) {
1656 		/* send the packets */
1657 		for (i = 0; i < 64; i++) {
1658 			buffer_info = &tx_ring->buffer_info[k];
1659 
1660 			e1000_create_lbtest_frame(buffer_info->skb, 1024);
1661 			dma_sync_single_for_device(&pdev->dev,
1662 						   buffer_info->dma,
1663 						   buffer_info->length,
1664 						   DMA_TO_DEVICE);
1665 			k++;
1666 			if (k == tx_ring->count)
1667 				k = 0;
1668 		}
1669 		ew32(TDT(0), k);
1670 		e1e_flush();
1671 		msleep(200);
1672 		time = jiffies;	/* set the start time for the receive */
1673 		good_cnt = 0;
1674 		/* receive the sent packets */
1675 		do {
1676 			buffer_info = &rx_ring->buffer_info[l];
1677 
1678 			dma_sync_single_for_cpu(&pdev->dev,
1679 						buffer_info->dma, 2048,
1680 						DMA_FROM_DEVICE);
1681 
1682 			ret_val = e1000_check_lbtest_frame(buffer_info->skb,
1683 							   1024);
1684 			if (!ret_val)
1685 				good_cnt++;
1686 			l++;
1687 			if (l == rx_ring->count)
1688 				l = 0;
1689 			/* time + 20 msecs (200 msecs on 2.4) is more than
1690 			 * enough time to complete the receives, if it's
1691 			 * exceeded, break and error off
1692 			 */
1693 		} while ((good_cnt < 64) && !time_after(jiffies, time + 20));
1694 		if (good_cnt != 64) {
1695 			ret_val = 13;	/* ret_val is the same as mis-compare */
1696 			break;
1697 		}
1698 		if (time_after(jiffies, time + 20)) {
1699 			ret_val = 14;	/* error code for time out error */
1700 			break;
1701 		}
1702 	}
1703 	return ret_val;
1704 }
1705 
1706 static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data)
1707 {
1708 	struct e1000_hw *hw = &adapter->hw;
1709 
1710 	/* PHY loopback cannot be performed if SoL/IDER sessions are active */
1711 	if (hw->phy.ops.check_reset_block &&
1712 	    hw->phy.ops.check_reset_block(hw)) {
1713 		e_err("Cannot do PHY loopback test when SoL/IDER is active.\n");
1714 		*data = 0;
1715 		goto out;
1716 	}
1717 
1718 	*data = e1000_setup_desc_rings(adapter);
1719 	if (*data)
1720 		goto out;
1721 
1722 	*data = e1000_setup_loopback_test(adapter);
1723 	if (*data)
1724 		goto err_loopback;
1725 
1726 	*data = e1000_run_loopback_test(adapter);
1727 	e1000_loopback_cleanup(adapter);
1728 
1729 err_loopback:
1730 	e1000_free_desc_rings(adapter);
1731 out:
1732 	return *data;
1733 }
1734 
1735 static int e1000_link_test(struct e1000_adapter *adapter, u64 *data)
1736 {
1737 	struct e1000_hw *hw = &adapter->hw;
1738 
1739 	*data = 0;
1740 	if (hw->phy.media_type == e1000_media_type_internal_serdes) {
1741 		int i = 0;
1742 
1743 		hw->mac.serdes_has_link = false;
1744 
1745 		/* On some blade server designs, link establishment
1746 		 * could take as long as 2-3 minutes
1747 		 */
1748 		do {
1749 			hw->mac.ops.check_for_link(hw);
1750 			if (hw->mac.serdes_has_link)
1751 				return *data;
1752 			msleep(20);
1753 		} while (i++ < 3750);
1754 
1755 		*data = 1;
1756 	} else {
1757 		hw->mac.ops.check_for_link(hw);
1758 		if (hw->mac.autoneg)
1759 			/* On some Phy/switch combinations, link establishment
1760 			 * can take a few seconds more than expected.
1761 			 */
1762 			msleep_interruptible(5000);
1763 
1764 		if (!(er32(STATUS) & E1000_STATUS_LU))
1765 			*data = 1;
1766 	}
1767 	return *data;
1768 }
1769 
1770 static int e1000e_get_sset_count(struct net_device __always_unused *netdev,
1771 				 int sset)
1772 {
1773 	switch (sset) {
1774 	case ETH_SS_TEST:
1775 		return E1000_TEST_LEN;
1776 	case ETH_SS_STATS:
1777 		return E1000_STATS_LEN;
1778 	default:
1779 		return -EOPNOTSUPP;
1780 	}
1781 }
1782 
1783 static void e1000_diag_test(struct net_device *netdev,
1784 			    struct ethtool_test *eth_test, u64 *data)
1785 {
1786 	struct e1000_adapter *adapter = netdev_priv(netdev);
1787 	u16 autoneg_advertised;
1788 	u8 forced_speed_duplex;
1789 	u8 autoneg;
1790 	bool if_running = netif_running(netdev);
1791 
1792 	pm_runtime_get_sync(netdev->dev.parent);
1793 
1794 	set_bit(__E1000_TESTING, &adapter->state);
1795 
1796 	if (!if_running) {
1797 		/* Get control of and reset hardware */
1798 		if (adapter->flags & FLAG_HAS_AMT)
1799 			e1000e_get_hw_control(adapter);
1800 
1801 		e1000e_power_up_phy(adapter);
1802 
1803 		adapter->hw.phy.autoneg_wait_to_complete = 1;
1804 		e1000e_reset(adapter);
1805 		adapter->hw.phy.autoneg_wait_to_complete = 0;
1806 	}
1807 
1808 	if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1809 		/* Offline tests */
1810 
1811 		/* save speed, duplex, autoneg settings */
1812 		autoneg_advertised = adapter->hw.phy.autoneg_advertised;
1813 		forced_speed_duplex = adapter->hw.mac.forced_speed_duplex;
1814 		autoneg = adapter->hw.mac.autoneg;
1815 
1816 		e_info("offline testing starting\n");
1817 
1818 		if (if_running)
1819 			/* indicate we're in test mode */
1820 			e1000e_close(netdev);
1821 
1822 		if (e1000_reg_test(adapter, &data[0]))
1823 			eth_test->flags |= ETH_TEST_FL_FAILED;
1824 
1825 		e1000e_reset(adapter);
1826 		if (e1000_eeprom_test(adapter, &data[1]))
1827 			eth_test->flags |= ETH_TEST_FL_FAILED;
1828 
1829 		e1000e_reset(adapter);
1830 		if (e1000_intr_test(adapter, &data[2]))
1831 			eth_test->flags |= ETH_TEST_FL_FAILED;
1832 
1833 		e1000e_reset(adapter);
1834 		if (e1000_loopback_test(adapter, &data[3]))
1835 			eth_test->flags |= ETH_TEST_FL_FAILED;
1836 
1837 		/* force this routine to wait until autoneg complete/timeout */
1838 		adapter->hw.phy.autoneg_wait_to_complete = 1;
1839 		e1000e_reset(adapter);
1840 		adapter->hw.phy.autoneg_wait_to_complete = 0;
1841 
1842 		if (e1000_link_test(adapter, &data[4]))
1843 			eth_test->flags |= ETH_TEST_FL_FAILED;
1844 
1845 		/* restore speed, duplex, autoneg settings */
1846 		adapter->hw.phy.autoneg_advertised = autoneg_advertised;
1847 		adapter->hw.mac.forced_speed_duplex = forced_speed_duplex;
1848 		adapter->hw.mac.autoneg = autoneg;
1849 		e1000e_reset(adapter);
1850 
1851 		clear_bit(__E1000_TESTING, &adapter->state);
1852 		if (if_running)
1853 			e1000e_open(netdev);
1854 	} else {
1855 		/* Online tests */
1856 
1857 		e_info("online testing starting\n");
1858 
1859 		/* register, eeprom, intr and loopback tests not run online */
1860 		data[0] = 0;
1861 		data[1] = 0;
1862 		data[2] = 0;
1863 		data[3] = 0;
1864 
1865 		if (e1000_link_test(adapter, &data[4]))
1866 			eth_test->flags |= ETH_TEST_FL_FAILED;
1867 
1868 		clear_bit(__E1000_TESTING, &adapter->state);
1869 	}
1870 
1871 	if (!if_running) {
1872 		e1000e_reset(adapter);
1873 
1874 		if (adapter->flags & FLAG_HAS_AMT)
1875 			e1000e_release_hw_control(adapter);
1876 	}
1877 
1878 	msleep_interruptible(4 * 1000);
1879 
1880 	pm_runtime_put_sync(netdev->dev.parent);
1881 }
1882 
1883 static void e1000_get_wol(struct net_device *netdev,
1884 			  struct ethtool_wolinfo *wol)
1885 {
1886 	struct e1000_adapter *adapter = netdev_priv(netdev);
1887 
1888 	wol->supported = 0;
1889 	wol->wolopts = 0;
1890 
1891 	if (!(adapter->flags & FLAG_HAS_WOL) ||
1892 	    !device_can_wakeup(&adapter->pdev->dev))
1893 		return;
1894 
1895 	wol->supported = WAKE_UCAST | WAKE_MCAST |
1896 	    WAKE_BCAST | WAKE_MAGIC | WAKE_PHY;
1897 
1898 	/* apply any specific unsupported masks here */
1899 	if (adapter->flags & FLAG_NO_WAKE_UCAST) {
1900 		wol->supported &= ~WAKE_UCAST;
1901 
1902 		if (adapter->wol & E1000_WUFC_EX)
1903 			e_err("Interface does not support directed (unicast) frame wake-up packets\n");
1904 	}
1905 
1906 	if (adapter->wol & E1000_WUFC_EX)
1907 		wol->wolopts |= WAKE_UCAST;
1908 	if (adapter->wol & E1000_WUFC_MC)
1909 		wol->wolopts |= WAKE_MCAST;
1910 	if (adapter->wol & E1000_WUFC_BC)
1911 		wol->wolopts |= WAKE_BCAST;
1912 	if (adapter->wol & E1000_WUFC_MAG)
1913 		wol->wolopts |= WAKE_MAGIC;
1914 	if (adapter->wol & E1000_WUFC_LNKC)
1915 		wol->wolopts |= WAKE_PHY;
1916 }
1917 
1918 static int e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1919 {
1920 	struct e1000_adapter *adapter = netdev_priv(netdev);
1921 
1922 	if (!(adapter->flags & FLAG_HAS_WOL) ||
1923 	    !device_can_wakeup(&adapter->pdev->dev) ||
1924 	    (wol->wolopts & ~(WAKE_UCAST | WAKE_MCAST | WAKE_BCAST |
1925 			      WAKE_MAGIC | WAKE_PHY)))
1926 		return -EOPNOTSUPP;
1927 
1928 	/* these settings will always override what we currently have */
1929 	adapter->wol = 0;
1930 
1931 	if (wol->wolopts & WAKE_UCAST)
1932 		adapter->wol |= E1000_WUFC_EX;
1933 	if (wol->wolopts & WAKE_MCAST)
1934 		adapter->wol |= E1000_WUFC_MC;
1935 	if (wol->wolopts & WAKE_BCAST)
1936 		adapter->wol |= E1000_WUFC_BC;
1937 	if (wol->wolopts & WAKE_MAGIC)
1938 		adapter->wol |= E1000_WUFC_MAG;
1939 	if (wol->wolopts & WAKE_PHY)
1940 		adapter->wol |= E1000_WUFC_LNKC;
1941 
1942 	device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
1943 
1944 	return 0;
1945 }
1946 
1947 static int e1000_set_phys_id(struct net_device *netdev,
1948 			     enum ethtool_phys_id_state state)
1949 {
1950 	struct e1000_adapter *adapter = netdev_priv(netdev);
1951 	struct e1000_hw *hw = &adapter->hw;
1952 
1953 	switch (state) {
1954 	case ETHTOOL_ID_ACTIVE:
1955 		pm_runtime_get_sync(netdev->dev.parent);
1956 
1957 		if (!hw->mac.ops.blink_led)
1958 			return 2;	/* cycle on/off twice per second */
1959 
1960 		hw->mac.ops.blink_led(hw);
1961 		break;
1962 
1963 	case ETHTOOL_ID_INACTIVE:
1964 		if (hw->phy.type == e1000_phy_ife)
1965 			e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0);
1966 		hw->mac.ops.led_off(hw);
1967 		hw->mac.ops.cleanup_led(hw);
1968 		pm_runtime_put_sync(netdev->dev.parent);
1969 		break;
1970 
1971 	case ETHTOOL_ID_ON:
1972 		hw->mac.ops.led_on(hw);
1973 		break;
1974 
1975 	case ETHTOOL_ID_OFF:
1976 		hw->mac.ops.led_off(hw);
1977 		break;
1978 	}
1979 
1980 	return 0;
1981 }
1982 
1983 static int e1000_get_coalesce(struct net_device *netdev,
1984 			      struct ethtool_coalesce *ec)
1985 {
1986 	struct e1000_adapter *adapter = netdev_priv(netdev);
1987 
1988 	if (adapter->itr_setting <= 4)
1989 		ec->rx_coalesce_usecs = adapter->itr_setting;
1990 	else
1991 		ec->rx_coalesce_usecs = 1000000 / adapter->itr_setting;
1992 
1993 	return 0;
1994 }
1995 
1996 static int e1000_set_coalesce(struct net_device *netdev,
1997 			      struct ethtool_coalesce *ec)
1998 {
1999 	struct e1000_adapter *adapter = netdev_priv(netdev);
2000 
2001 	if ((ec->rx_coalesce_usecs > E1000_MAX_ITR_USECS) ||
2002 	    ((ec->rx_coalesce_usecs > 4) &&
2003 	     (ec->rx_coalesce_usecs < E1000_MIN_ITR_USECS)) ||
2004 	    (ec->rx_coalesce_usecs == 2))
2005 		return -EINVAL;
2006 
2007 	if (ec->rx_coalesce_usecs == 4) {
2008 		adapter->itr_setting = 4;
2009 		adapter->itr = adapter->itr_setting;
2010 	} else if (ec->rx_coalesce_usecs <= 3) {
2011 		adapter->itr = 20000;
2012 		adapter->itr_setting = ec->rx_coalesce_usecs;
2013 	} else {
2014 		adapter->itr = (1000000 / ec->rx_coalesce_usecs);
2015 		adapter->itr_setting = adapter->itr & ~3;
2016 	}
2017 
2018 	pm_runtime_get_sync(netdev->dev.parent);
2019 
2020 	if (adapter->itr_setting != 0)
2021 		e1000e_write_itr(adapter, adapter->itr);
2022 	else
2023 		e1000e_write_itr(adapter, 0);
2024 
2025 	pm_runtime_put_sync(netdev->dev.parent);
2026 
2027 	return 0;
2028 }
2029 
2030 static int e1000_nway_reset(struct net_device *netdev)
2031 {
2032 	struct e1000_adapter *adapter = netdev_priv(netdev);
2033 
2034 	if (!netif_running(netdev))
2035 		return -EAGAIN;
2036 
2037 	if (!adapter->hw.mac.autoneg)
2038 		return -EINVAL;
2039 
2040 	pm_runtime_get_sync(netdev->dev.parent);
2041 	e1000e_reinit_locked(adapter);
2042 	pm_runtime_put_sync(netdev->dev.parent);
2043 
2044 	return 0;
2045 }
2046 
2047 static void e1000_get_ethtool_stats(struct net_device *netdev,
2048 				    struct ethtool_stats __always_unused *stats,
2049 				    u64 *data)
2050 {
2051 	struct e1000_adapter *adapter = netdev_priv(netdev);
2052 	struct rtnl_link_stats64 net_stats;
2053 	int i;
2054 	char *p = NULL;
2055 
2056 	pm_runtime_get_sync(netdev->dev.parent);
2057 
2058 	dev_get_stats(netdev, &net_stats);
2059 
2060 	pm_runtime_put_sync(netdev->dev.parent);
2061 
2062 	for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
2063 		switch (e1000_gstrings_stats[i].type) {
2064 		case NETDEV_STATS:
2065 			p = (char *)&net_stats +
2066 			    e1000_gstrings_stats[i].stat_offset;
2067 			break;
2068 		case E1000_STATS:
2069 			p = (char *)adapter +
2070 			    e1000_gstrings_stats[i].stat_offset;
2071 			break;
2072 		default:
2073 			data[i] = 0;
2074 			continue;
2075 		}
2076 
2077 		data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
2078 			   sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
2079 	}
2080 }
2081 
2082 static void e1000_get_strings(struct net_device __always_unused *netdev,
2083 			      u32 stringset, u8 *data)
2084 {
2085 	u8 *p = data;
2086 	int i;
2087 
2088 	switch (stringset) {
2089 	case ETH_SS_TEST:
2090 		memcpy(data, e1000_gstrings_test, sizeof(e1000_gstrings_test));
2091 		break;
2092 	case ETH_SS_STATS:
2093 		for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
2094 			memcpy(p, e1000_gstrings_stats[i].stat_string,
2095 			       ETH_GSTRING_LEN);
2096 			p += ETH_GSTRING_LEN;
2097 		}
2098 		break;
2099 	}
2100 }
2101 
2102 static int e1000_get_rxnfc(struct net_device *netdev,
2103 			   struct ethtool_rxnfc *info,
2104 			   u32 __always_unused *rule_locs)
2105 {
2106 	info->data = 0;
2107 
2108 	switch (info->cmd) {
2109 	case ETHTOOL_GRXFH: {
2110 		struct e1000_adapter *adapter = netdev_priv(netdev);
2111 		struct e1000_hw *hw = &adapter->hw;
2112 		u32 mrqc;
2113 
2114 		pm_runtime_get_sync(netdev->dev.parent);
2115 		mrqc = er32(MRQC);
2116 		pm_runtime_put_sync(netdev->dev.parent);
2117 
2118 		if (!(mrqc & E1000_MRQC_RSS_FIELD_MASK))
2119 			return 0;
2120 
2121 		switch (info->flow_type) {
2122 		case TCP_V4_FLOW:
2123 			if (mrqc & E1000_MRQC_RSS_FIELD_IPV4_TCP)
2124 				info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2125 			/* fall through */
2126 		case UDP_V4_FLOW:
2127 		case SCTP_V4_FLOW:
2128 		case AH_ESP_V4_FLOW:
2129 		case IPV4_FLOW:
2130 			if (mrqc & E1000_MRQC_RSS_FIELD_IPV4)
2131 				info->data |= RXH_IP_SRC | RXH_IP_DST;
2132 			break;
2133 		case TCP_V6_FLOW:
2134 			if (mrqc & E1000_MRQC_RSS_FIELD_IPV6_TCP)
2135 				info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2136 			/* fall through */
2137 		case UDP_V6_FLOW:
2138 		case SCTP_V6_FLOW:
2139 		case AH_ESP_V6_FLOW:
2140 		case IPV6_FLOW:
2141 			if (mrqc & E1000_MRQC_RSS_FIELD_IPV6)
2142 				info->data |= RXH_IP_SRC | RXH_IP_DST;
2143 			break;
2144 		default:
2145 			break;
2146 		}
2147 		return 0;
2148 	}
2149 	default:
2150 		return -EOPNOTSUPP;
2151 	}
2152 }
2153 
2154 static int e1000e_get_eee(struct net_device *netdev, struct ethtool_eee *edata)
2155 {
2156 	struct e1000_adapter *adapter = netdev_priv(netdev);
2157 	struct e1000_hw *hw = &adapter->hw;
2158 	u16 cap_addr, lpa_addr, pcs_stat_addr, phy_data;
2159 	u32 ret_val;
2160 
2161 	if (!(adapter->flags2 & FLAG2_HAS_EEE))
2162 		return -EOPNOTSUPP;
2163 
2164 	switch (hw->phy.type) {
2165 	case e1000_phy_82579:
2166 		cap_addr = I82579_EEE_CAPABILITY;
2167 		lpa_addr = I82579_EEE_LP_ABILITY;
2168 		pcs_stat_addr = I82579_EEE_PCS_STATUS;
2169 		break;
2170 	case e1000_phy_i217:
2171 		cap_addr = I217_EEE_CAPABILITY;
2172 		lpa_addr = I217_EEE_LP_ABILITY;
2173 		pcs_stat_addr = I217_EEE_PCS_STATUS;
2174 		break;
2175 	default:
2176 		return -EOPNOTSUPP;
2177 	}
2178 
2179 	pm_runtime_get_sync(netdev->dev.parent);
2180 
2181 	ret_val = hw->phy.ops.acquire(hw);
2182 	if (ret_val) {
2183 		pm_runtime_put_sync(netdev->dev.parent);
2184 		return -EBUSY;
2185 	}
2186 
2187 	/* EEE Capability */
2188 	ret_val = e1000_read_emi_reg_locked(hw, cap_addr, &phy_data);
2189 	if (ret_val)
2190 		goto release;
2191 	edata->supported = mmd_eee_cap_to_ethtool_sup_t(phy_data);
2192 
2193 	/* EEE Advertised */
2194 	edata->advertised = mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert);
2195 
2196 	/* EEE Link Partner Advertised */
2197 	ret_val = e1000_read_emi_reg_locked(hw, lpa_addr, &phy_data);
2198 	if (ret_val)
2199 		goto release;
2200 	edata->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(phy_data);
2201 
2202 	/* EEE PCS Status */
2203 	ret_val = e1000_read_emi_reg_locked(hw, pcs_stat_addr, &phy_data);
2204 	if (ret_val)
2205 		goto release;
2206 	if (hw->phy.type == e1000_phy_82579)
2207 		phy_data <<= 8;
2208 
2209 	/* Result of the EEE auto negotiation - there is no register that
2210 	 * has the status of the EEE negotiation so do a best-guess based
2211 	 * on whether Tx or Rx LPI indications have been received.
2212 	 */
2213 	if (phy_data & (E1000_EEE_TX_LPI_RCVD | E1000_EEE_RX_LPI_RCVD))
2214 		edata->eee_active = true;
2215 
2216 	edata->eee_enabled = !hw->dev_spec.ich8lan.eee_disable;
2217 	edata->tx_lpi_enabled = true;
2218 	edata->tx_lpi_timer = er32(LPIC) >> E1000_LPIC_LPIET_SHIFT;
2219 
2220 release:
2221 	hw->phy.ops.release(hw);
2222 	if (ret_val)
2223 		ret_val = -ENODATA;
2224 
2225 	pm_runtime_put_sync(netdev->dev.parent);
2226 
2227 	return ret_val;
2228 }
2229 
2230 static int e1000e_set_eee(struct net_device *netdev, struct ethtool_eee *edata)
2231 {
2232 	struct e1000_adapter *adapter = netdev_priv(netdev);
2233 	struct e1000_hw *hw = &adapter->hw;
2234 	struct ethtool_eee eee_curr;
2235 	s32 ret_val;
2236 
2237 	ret_val = e1000e_get_eee(netdev, &eee_curr);
2238 	if (ret_val)
2239 		return ret_val;
2240 
2241 	if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) {
2242 		e_err("Setting EEE tx-lpi is not supported\n");
2243 		return -EINVAL;
2244 	}
2245 
2246 	if (eee_curr.tx_lpi_timer != edata->tx_lpi_timer) {
2247 		e_err("Setting EEE Tx LPI timer is not supported\n");
2248 		return -EINVAL;
2249 	}
2250 
2251 	if (edata->advertised & ~(ADVERTISE_100_FULL | ADVERTISE_1000_FULL)) {
2252 		e_err("EEE advertisement supports only 100TX and/or 1000T full-duplex\n");
2253 		return -EINVAL;
2254 	}
2255 
2256 	adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised);
2257 
2258 	hw->dev_spec.ich8lan.eee_disable = !edata->eee_enabled;
2259 
2260 	pm_runtime_get_sync(netdev->dev.parent);
2261 
2262 	/* reset the link */
2263 	if (netif_running(netdev))
2264 		e1000e_reinit_locked(adapter);
2265 	else
2266 		e1000e_reset(adapter);
2267 
2268 	pm_runtime_put_sync(netdev->dev.parent);
2269 
2270 	return 0;
2271 }
2272 
2273 static int e1000e_get_ts_info(struct net_device *netdev,
2274 			      struct ethtool_ts_info *info)
2275 {
2276 	struct e1000_adapter *adapter = netdev_priv(netdev);
2277 
2278 	ethtool_op_get_ts_info(netdev, info);
2279 
2280 	if (!(adapter->flags & FLAG_HAS_HW_TIMESTAMP))
2281 		return 0;
2282 
2283 	info->so_timestamping |= (SOF_TIMESTAMPING_TX_HARDWARE |
2284 				  SOF_TIMESTAMPING_RX_HARDWARE |
2285 				  SOF_TIMESTAMPING_RAW_HARDWARE);
2286 
2287 	info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
2288 
2289 	info->rx_filters = (BIT(HWTSTAMP_FILTER_NONE) |
2290 			    BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
2291 			    BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
2292 			    BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
2293 			    BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) |
2294 			    BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
2295 			    BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ) |
2296 			    BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
2297 			    BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) |
2298 			    BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
2299 			    BIT(HWTSTAMP_FILTER_ALL));
2300 
2301 	if (adapter->ptp_clock)
2302 		info->phc_index = ptp_clock_index(adapter->ptp_clock);
2303 
2304 	return 0;
2305 }
2306 
2307 static const struct ethtool_ops e1000_ethtool_ops = {
2308 	.get_drvinfo		= e1000_get_drvinfo,
2309 	.get_regs_len		= e1000_get_regs_len,
2310 	.get_regs		= e1000_get_regs,
2311 	.get_wol		= e1000_get_wol,
2312 	.set_wol		= e1000_set_wol,
2313 	.get_msglevel		= e1000_get_msglevel,
2314 	.set_msglevel		= e1000_set_msglevel,
2315 	.nway_reset		= e1000_nway_reset,
2316 	.get_link		= ethtool_op_get_link,
2317 	.get_eeprom_len		= e1000_get_eeprom_len,
2318 	.get_eeprom		= e1000_get_eeprom,
2319 	.set_eeprom		= e1000_set_eeprom,
2320 	.get_ringparam		= e1000_get_ringparam,
2321 	.set_ringparam		= e1000_set_ringparam,
2322 	.get_pauseparam		= e1000_get_pauseparam,
2323 	.set_pauseparam		= e1000_set_pauseparam,
2324 	.self_test		= e1000_diag_test,
2325 	.get_strings		= e1000_get_strings,
2326 	.set_phys_id		= e1000_set_phys_id,
2327 	.get_ethtool_stats	= e1000_get_ethtool_stats,
2328 	.get_sset_count		= e1000e_get_sset_count,
2329 	.get_coalesce		= e1000_get_coalesce,
2330 	.set_coalesce		= e1000_set_coalesce,
2331 	.get_rxnfc		= e1000_get_rxnfc,
2332 	.get_ts_info		= e1000e_get_ts_info,
2333 	.get_eee		= e1000e_get_eee,
2334 	.set_eee		= e1000e_set_eee,
2335 	.get_link_ksettings	= e1000_get_link_ksettings,
2336 	.set_link_ksettings	= e1000_set_link_ksettings,
2337 };
2338 
2339 void e1000e_set_ethtool_ops(struct net_device *netdev)
2340 {
2341 	netdev->ethtool_ops = &e1000_ethtool_ops;
2342 }
2343