1 /* Intel PRO/1000 Linux driver
2  * Copyright(c) 1999 - 2014 Intel Corporation.
3  *
4  * This program is free software; you can redistribute it and/or modify it
5  * under the terms and conditions of the GNU General Public License,
6  * version 2, as published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope it will be useful, but WITHOUT
9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
11  * more details.
12  *
13  * The full GNU General Public License is included in this distribution in
14  * the file called "COPYING".
15  *
16  * Contact Information:
17  * Linux NICS <linux.nics@intel.com>
18  * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
19  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
20  */
21 
22 /* ethtool support for e1000 */
23 
24 #include <linux/netdevice.h>
25 #include <linux/interrupt.h>
26 #include <linux/ethtool.h>
27 #include <linux/pci.h>
28 #include <linux/slab.h>
29 #include <linux/delay.h>
30 #include <linux/vmalloc.h>
31 #include <linux/pm_runtime.h>
32 
33 #include "e1000.h"
34 
35 enum { NETDEV_STATS, E1000_STATS };
36 
37 struct e1000_stats {
38 	char stat_string[ETH_GSTRING_LEN];
39 	int type;
40 	int sizeof_stat;
41 	int stat_offset;
42 };
43 
44 #define E1000_STAT(str, m) { \
45 		.stat_string = str, \
46 		.type = E1000_STATS, \
47 		.sizeof_stat = sizeof(((struct e1000_adapter *)0)->m), \
48 		.stat_offset = offsetof(struct e1000_adapter, m) }
49 #define E1000_NETDEV_STAT(str, m) { \
50 		.stat_string = str, \
51 		.type = NETDEV_STATS, \
52 		.sizeof_stat = sizeof(((struct rtnl_link_stats64 *)0)->m), \
53 		.stat_offset = offsetof(struct rtnl_link_stats64, m) }
54 
55 static const struct e1000_stats e1000_gstrings_stats[] = {
56 	E1000_STAT("rx_packets", stats.gprc),
57 	E1000_STAT("tx_packets", stats.gptc),
58 	E1000_STAT("rx_bytes", stats.gorc),
59 	E1000_STAT("tx_bytes", stats.gotc),
60 	E1000_STAT("rx_broadcast", stats.bprc),
61 	E1000_STAT("tx_broadcast", stats.bptc),
62 	E1000_STAT("rx_multicast", stats.mprc),
63 	E1000_STAT("tx_multicast", stats.mptc),
64 	E1000_NETDEV_STAT("rx_errors", rx_errors),
65 	E1000_NETDEV_STAT("tx_errors", tx_errors),
66 	E1000_NETDEV_STAT("tx_dropped", tx_dropped),
67 	E1000_STAT("multicast", stats.mprc),
68 	E1000_STAT("collisions", stats.colc),
69 	E1000_NETDEV_STAT("rx_length_errors", rx_length_errors),
70 	E1000_NETDEV_STAT("rx_over_errors", rx_over_errors),
71 	E1000_STAT("rx_crc_errors", stats.crcerrs),
72 	E1000_NETDEV_STAT("rx_frame_errors", rx_frame_errors),
73 	E1000_STAT("rx_no_buffer_count", stats.rnbc),
74 	E1000_STAT("rx_missed_errors", stats.mpc),
75 	E1000_STAT("tx_aborted_errors", stats.ecol),
76 	E1000_STAT("tx_carrier_errors", stats.tncrs),
77 	E1000_NETDEV_STAT("tx_fifo_errors", tx_fifo_errors),
78 	E1000_NETDEV_STAT("tx_heartbeat_errors", tx_heartbeat_errors),
79 	E1000_STAT("tx_window_errors", stats.latecol),
80 	E1000_STAT("tx_abort_late_coll", stats.latecol),
81 	E1000_STAT("tx_deferred_ok", stats.dc),
82 	E1000_STAT("tx_single_coll_ok", stats.scc),
83 	E1000_STAT("tx_multi_coll_ok", stats.mcc),
84 	E1000_STAT("tx_timeout_count", tx_timeout_count),
85 	E1000_STAT("tx_restart_queue", restart_queue),
86 	E1000_STAT("rx_long_length_errors", stats.roc),
87 	E1000_STAT("rx_short_length_errors", stats.ruc),
88 	E1000_STAT("rx_align_errors", stats.algnerrc),
89 	E1000_STAT("tx_tcp_seg_good", stats.tsctc),
90 	E1000_STAT("tx_tcp_seg_failed", stats.tsctfc),
91 	E1000_STAT("rx_flow_control_xon", stats.xonrxc),
92 	E1000_STAT("rx_flow_control_xoff", stats.xoffrxc),
93 	E1000_STAT("tx_flow_control_xon", stats.xontxc),
94 	E1000_STAT("tx_flow_control_xoff", stats.xofftxc),
95 	E1000_STAT("rx_csum_offload_good", hw_csum_good),
96 	E1000_STAT("rx_csum_offload_errors", hw_csum_err),
97 	E1000_STAT("rx_header_split", rx_hdr_split),
98 	E1000_STAT("alloc_rx_buff_failed", alloc_rx_buff_failed),
99 	E1000_STAT("tx_smbus", stats.mgptc),
100 	E1000_STAT("rx_smbus", stats.mgprc),
101 	E1000_STAT("dropped_smbus", stats.mgpdc),
102 	E1000_STAT("rx_dma_failed", rx_dma_failed),
103 	E1000_STAT("tx_dma_failed", tx_dma_failed),
104 	E1000_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
105 	E1000_STAT("uncorr_ecc_errors", uncorr_errors),
106 	E1000_STAT("corr_ecc_errors", corr_errors),
107 	E1000_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
108 };
109 
110 #define E1000_GLOBAL_STATS_LEN	ARRAY_SIZE(e1000_gstrings_stats)
111 #define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN)
112 static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {
113 	"Register test  (offline)", "Eeprom test    (offline)",
114 	"Interrupt test (offline)", "Loopback test  (offline)",
115 	"Link test   (on/offline)"
116 };
117 
118 #define E1000_TEST_LEN ARRAY_SIZE(e1000_gstrings_test)
119 
120 static int e1000_get_settings(struct net_device *netdev,
121 			      struct ethtool_cmd *ecmd)
122 {
123 	struct e1000_adapter *adapter = netdev_priv(netdev);
124 	struct e1000_hw *hw = &adapter->hw;
125 	u32 speed;
126 
127 	if (hw->phy.media_type == e1000_media_type_copper) {
128 		ecmd->supported = (SUPPORTED_10baseT_Half |
129 				   SUPPORTED_10baseT_Full |
130 				   SUPPORTED_100baseT_Half |
131 				   SUPPORTED_100baseT_Full |
132 				   SUPPORTED_1000baseT_Full |
133 				   SUPPORTED_Autoneg |
134 				   SUPPORTED_TP);
135 		if (hw->phy.type == e1000_phy_ife)
136 			ecmd->supported &= ~SUPPORTED_1000baseT_Full;
137 		ecmd->advertising = ADVERTISED_TP;
138 
139 		if (hw->mac.autoneg == 1) {
140 			ecmd->advertising |= ADVERTISED_Autoneg;
141 			/* the e1000 autoneg seems to match ethtool nicely */
142 			ecmd->advertising |= hw->phy.autoneg_advertised;
143 		}
144 
145 		ecmd->port = PORT_TP;
146 		ecmd->phy_address = hw->phy.addr;
147 		ecmd->transceiver = XCVR_INTERNAL;
148 
149 	} else {
150 		ecmd->supported   = (SUPPORTED_1000baseT_Full |
151 				     SUPPORTED_FIBRE |
152 				     SUPPORTED_Autoneg);
153 
154 		ecmd->advertising = (ADVERTISED_1000baseT_Full |
155 				     ADVERTISED_FIBRE |
156 				     ADVERTISED_Autoneg);
157 
158 		ecmd->port = PORT_FIBRE;
159 		ecmd->transceiver = XCVR_EXTERNAL;
160 	}
161 
162 	speed = SPEED_UNKNOWN;
163 	ecmd->duplex = DUPLEX_UNKNOWN;
164 
165 	if (netif_running(netdev)) {
166 		if (netif_carrier_ok(netdev)) {
167 			speed = adapter->link_speed;
168 			ecmd->duplex = adapter->link_duplex - 1;
169 		}
170 	} else if (!pm_runtime_suspended(netdev->dev.parent)) {
171 		u32 status = er32(STATUS);
172 
173 		if (status & E1000_STATUS_LU) {
174 			if (status & E1000_STATUS_SPEED_1000)
175 				speed = SPEED_1000;
176 			else if (status & E1000_STATUS_SPEED_100)
177 				speed = SPEED_100;
178 			else
179 				speed = SPEED_10;
180 
181 			if (status & E1000_STATUS_FD)
182 				ecmd->duplex = DUPLEX_FULL;
183 			else
184 				ecmd->duplex = DUPLEX_HALF;
185 		}
186 	}
187 
188 	ethtool_cmd_speed_set(ecmd, speed);
189 	ecmd->autoneg = ((hw->phy.media_type == e1000_media_type_fiber) ||
190 			 hw->mac.autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
191 
192 	/* MDI-X => 2; MDI =>1; Invalid =>0 */
193 	if ((hw->phy.media_type == e1000_media_type_copper) &&
194 	    netif_carrier_ok(netdev))
195 		ecmd->eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X : ETH_TP_MDI;
196 	else
197 		ecmd->eth_tp_mdix = ETH_TP_MDI_INVALID;
198 
199 	if (hw->phy.mdix == AUTO_ALL_MODES)
200 		ecmd->eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
201 	else
202 		ecmd->eth_tp_mdix_ctrl = hw->phy.mdix;
203 
204 	return 0;
205 }
206 
207 static int e1000_set_spd_dplx(struct e1000_adapter *adapter, u32 spd, u8 dplx)
208 {
209 	struct e1000_mac_info *mac = &adapter->hw.mac;
210 
211 	mac->autoneg = 0;
212 
213 	/* Make sure dplx is at most 1 bit and lsb of speed is not set
214 	 * for the switch() below to work
215 	 */
216 	if ((spd & 1) || (dplx & ~1))
217 		goto err_inval;
218 
219 	/* Fiber NICs only allow 1000 gbps Full duplex */
220 	if ((adapter->hw.phy.media_type == e1000_media_type_fiber) &&
221 	    (spd != SPEED_1000) && (dplx != DUPLEX_FULL)) {
222 		goto err_inval;
223 	}
224 
225 	switch (spd + dplx) {
226 	case SPEED_10 + DUPLEX_HALF:
227 		mac->forced_speed_duplex = ADVERTISE_10_HALF;
228 		break;
229 	case SPEED_10 + DUPLEX_FULL:
230 		mac->forced_speed_duplex = ADVERTISE_10_FULL;
231 		break;
232 	case SPEED_100 + DUPLEX_HALF:
233 		mac->forced_speed_duplex = ADVERTISE_100_HALF;
234 		break;
235 	case SPEED_100 + DUPLEX_FULL:
236 		mac->forced_speed_duplex = ADVERTISE_100_FULL;
237 		break;
238 	case SPEED_1000 + DUPLEX_FULL:
239 		mac->autoneg = 1;
240 		adapter->hw.phy.autoneg_advertised = ADVERTISE_1000_FULL;
241 		break;
242 	case SPEED_1000 + DUPLEX_HALF:	/* not supported */
243 	default:
244 		goto err_inval;
245 	}
246 
247 	/* clear MDI, MDI(-X) override is only allowed when autoneg enabled */
248 	adapter->hw.phy.mdix = AUTO_ALL_MODES;
249 
250 	return 0;
251 
252 err_inval:
253 	e_err("Unsupported Speed/Duplex configuration\n");
254 	return -EINVAL;
255 }
256 
257 static int e1000_set_settings(struct net_device *netdev,
258 			      struct ethtool_cmd *ecmd)
259 {
260 	struct e1000_adapter *adapter = netdev_priv(netdev);
261 	struct e1000_hw *hw = &adapter->hw;
262 	int ret_val = 0;
263 
264 	pm_runtime_get_sync(netdev->dev.parent);
265 
266 	/* When SoL/IDER sessions are active, autoneg/speed/duplex
267 	 * cannot be changed
268 	 */
269 	if (hw->phy.ops.check_reset_block &&
270 	    hw->phy.ops.check_reset_block(hw)) {
271 		e_err("Cannot change link characteristics when SoL/IDER is active.\n");
272 		ret_val = -EINVAL;
273 		goto out;
274 	}
275 
276 	/* MDI setting is only allowed when autoneg enabled because
277 	 * some hardware doesn't allow MDI setting when speed or
278 	 * duplex is forced.
279 	 */
280 	if (ecmd->eth_tp_mdix_ctrl) {
281 		if (hw->phy.media_type != e1000_media_type_copper) {
282 			ret_val = -EOPNOTSUPP;
283 			goto out;
284 		}
285 
286 		if ((ecmd->eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO) &&
287 		    (ecmd->autoneg != AUTONEG_ENABLE)) {
288 			e_err("forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
289 			ret_val = -EINVAL;
290 			goto out;
291 		}
292 	}
293 
294 	while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
295 		usleep_range(1000, 2000);
296 
297 	if (ecmd->autoneg == AUTONEG_ENABLE) {
298 		hw->mac.autoneg = 1;
299 		if (hw->phy.media_type == e1000_media_type_fiber)
300 			hw->phy.autoneg_advertised = ADVERTISED_1000baseT_Full |
301 			    ADVERTISED_FIBRE | ADVERTISED_Autoneg;
302 		else
303 			hw->phy.autoneg_advertised = ecmd->advertising |
304 			    ADVERTISED_TP | ADVERTISED_Autoneg;
305 		ecmd->advertising = hw->phy.autoneg_advertised;
306 		if (adapter->fc_autoneg)
307 			hw->fc.requested_mode = e1000_fc_default;
308 	} else {
309 		u32 speed = ethtool_cmd_speed(ecmd);
310 		/* calling this overrides forced MDI setting */
311 		if (e1000_set_spd_dplx(adapter, speed, ecmd->duplex)) {
312 			ret_val = -EINVAL;
313 			goto out;
314 		}
315 	}
316 
317 	/* MDI-X => 2; MDI => 1; Auto => 3 */
318 	if (ecmd->eth_tp_mdix_ctrl) {
319 		/* fix up the value for auto (3 => 0) as zero is mapped
320 		 * internally to auto
321 		 */
322 		if (ecmd->eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
323 			hw->phy.mdix = AUTO_ALL_MODES;
324 		else
325 			hw->phy.mdix = ecmd->eth_tp_mdix_ctrl;
326 	}
327 
328 	/* reset the link */
329 	if (netif_running(adapter->netdev)) {
330 		e1000e_down(adapter, true);
331 		e1000e_up(adapter);
332 	} else {
333 		e1000e_reset(adapter);
334 	}
335 
336 out:
337 	pm_runtime_put_sync(netdev->dev.parent);
338 	clear_bit(__E1000_RESETTING, &adapter->state);
339 	return ret_val;
340 }
341 
342 static void e1000_get_pauseparam(struct net_device *netdev,
343 				 struct ethtool_pauseparam *pause)
344 {
345 	struct e1000_adapter *adapter = netdev_priv(netdev);
346 	struct e1000_hw *hw = &adapter->hw;
347 
348 	pause->autoneg =
349 	    (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
350 
351 	if (hw->fc.current_mode == e1000_fc_rx_pause) {
352 		pause->rx_pause = 1;
353 	} else if (hw->fc.current_mode == e1000_fc_tx_pause) {
354 		pause->tx_pause = 1;
355 	} else if (hw->fc.current_mode == e1000_fc_full) {
356 		pause->rx_pause = 1;
357 		pause->tx_pause = 1;
358 	}
359 }
360 
361 static int e1000_set_pauseparam(struct net_device *netdev,
362 				struct ethtool_pauseparam *pause)
363 {
364 	struct e1000_adapter *adapter = netdev_priv(netdev);
365 	struct e1000_hw *hw = &adapter->hw;
366 	int retval = 0;
367 
368 	adapter->fc_autoneg = pause->autoneg;
369 
370 	while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
371 		usleep_range(1000, 2000);
372 
373 	pm_runtime_get_sync(netdev->dev.parent);
374 
375 	if (adapter->fc_autoneg == AUTONEG_ENABLE) {
376 		hw->fc.requested_mode = e1000_fc_default;
377 		if (netif_running(adapter->netdev)) {
378 			e1000e_down(adapter, true);
379 			e1000e_up(adapter);
380 		} else {
381 			e1000e_reset(adapter);
382 		}
383 	} else {
384 		if (pause->rx_pause && pause->tx_pause)
385 			hw->fc.requested_mode = e1000_fc_full;
386 		else if (pause->rx_pause && !pause->tx_pause)
387 			hw->fc.requested_mode = e1000_fc_rx_pause;
388 		else if (!pause->rx_pause && pause->tx_pause)
389 			hw->fc.requested_mode = e1000_fc_tx_pause;
390 		else if (!pause->rx_pause && !pause->tx_pause)
391 			hw->fc.requested_mode = e1000_fc_none;
392 
393 		hw->fc.current_mode = hw->fc.requested_mode;
394 
395 		if (hw->phy.media_type == e1000_media_type_fiber) {
396 			retval = hw->mac.ops.setup_link(hw);
397 			/* implicit goto out */
398 		} else {
399 			retval = e1000e_force_mac_fc(hw);
400 			if (retval)
401 				goto out;
402 			e1000e_set_fc_watermarks(hw);
403 		}
404 	}
405 
406 out:
407 	pm_runtime_put_sync(netdev->dev.parent);
408 	clear_bit(__E1000_RESETTING, &adapter->state);
409 	return retval;
410 }
411 
412 static u32 e1000_get_msglevel(struct net_device *netdev)
413 {
414 	struct e1000_adapter *adapter = netdev_priv(netdev);
415 	return adapter->msg_enable;
416 }
417 
418 static void e1000_set_msglevel(struct net_device *netdev, u32 data)
419 {
420 	struct e1000_adapter *adapter = netdev_priv(netdev);
421 	adapter->msg_enable = data;
422 }
423 
424 static int e1000_get_regs_len(struct net_device __always_unused *netdev)
425 {
426 #define E1000_REGS_LEN 32	/* overestimate */
427 	return E1000_REGS_LEN * sizeof(u32);
428 }
429 
430 static void e1000_get_regs(struct net_device *netdev,
431 			   struct ethtool_regs *regs, void *p)
432 {
433 	struct e1000_adapter *adapter = netdev_priv(netdev);
434 	struct e1000_hw *hw = &adapter->hw;
435 	u32 *regs_buff = p;
436 	u16 phy_data;
437 
438 	pm_runtime_get_sync(netdev->dev.parent);
439 
440 	memset(p, 0, E1000_REGS_LEN * sizeof(u32));
441 
442 	regs->version = (1 << 24) | (adapter->pdev->revision << 16) |
443 	    adapter->pdev->device;
444 
445 	regs_buff[0] = er32(CTRL);
446 	regs_buff[1] = er32(STATUS);
447 
448 	regs_buff[2] = er32(RCTL);
449 	regs_buff[3] = er32(RDLEN(0));
450 	regs_buff[4] = er32(RDH(0));
451 	regs_buff[5] = er32(RDT(0));
452 	regs_buff[6] = er32(RDTR);
453 
454 	regs_buff[7] = er32(TCTL);
455 	regs_buff[8] = er32(TDLEN(0));
456 	regs_buff[9] = er32(TDH(0));
457 	regs_buff[10] = er32(TDT(0));
458 	regs_buff[11] = er32(TIDV);
459 
460 	regs_buff[12] = adapter->hw.phy.type;	/* PHY type (IGP=1, M88=0) */
461 
462 	/* ethtool doesn't use anything past this point, so all this
463 	 * code is likely legacy junk for apps that may or may not exist
464 	 */
465 	if (hw->phy.type == e1000_phy_m88) {
466 		e1e_rphy(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
467 		regs_buff[13] = (u32)phy_data; /* cable length */
468 		regs_buff[14] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
469 		regs_buff[15] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
470 		regs_buff[16] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
471 		e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
472 		regs_buff[17] = (u32)phy_data; /* extended 10bt distance */
473 		regs_buff[18] = regs_buff[13]; /* cable polarity */
474 		regs_buff[19] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
475 		regs_buff[20] = regs_buff[17]; /* polarity correction */
476 		/* phy receive errors */
477 		regs_buff[22] = adapter->phy_stats.receive_errors;
478 		regs_buff[23] = regs_buff[13]; /* mdix mode */
479 	}
480 	regs_buff[21] = 0;	/* was idle_errors */
481 	e1e_rphy(hw, MII_STAT1000, &phy_data);
482 	regs_buff[24] = (u32)phy_data;	/* phy local receiver status */
483 	regs_buff[25] = regs_buff[24];	/* phy remote receiver status */
484 
485 	pm_runtime_put_sync(netdev->dev.parent);
486 }
487 
488 static int e1000_get_eeprom_len(struct net_device *netdev)
489 {
490 	struct e1000_adapter *adapter = netdev_priv(netdev);
491 	return adapter->hw.nvm.word_size * 2;
492 }
493 
494 static int e1000_get_eeprom(struct net_device *netdev,
495 			    struct ethtool_eeprom *eeprom, u8 *bytes)
496 {
497 	struct e1000_adapter *adapter = netdev_priv(netdev);
498 	struct e1000_hw *hw = &adapter->hw;
499 	u16 *eeprom_buff;
500 	int first_word;
501 	int last_word;
502 	int ret_val = 0;
503 	u16 i;
504 
505 	if (eeprom->len == 0)
506 		return -EINVAL;
507 
508 	eeprom->magic = adapter->pdev->vendor | (adapter->pdev->device << 16);
509 
510 	first_word = eeprom->offset >> 1;
511 	last_word = (eeprom->offset + eeprom->len - 1) >> 1;
512 
513 	eeprom_buff = kmalloc(sizeof(u16) * (last_word - first_word + 1),
514 			      GFP_KERNEL);
515 	if (!eeprom_buff)
516 		return -ENOMEM;
517 
518 	pm_runtime_get_sync(netdev->dev.parent);
519 
520 	if (hw->nvm.type == e1000_nvm_eeprom_spi) {
521 		ret_val = e1000_read_nvm(hw, first_word,
522 					 last_word - first_word + 1,
523 					 eeprom_buff);
524 	} else {
525 		for (i = 0; i < last_word - first_word + 1; i++) {
526 			ret_val = e1000_read_nvm(hw, first_word + i, 1,
527 						 &eeprom_buff[i]);
528 			if (ret_val)
529 				break;
530 		}
531 	}
532 
533 	pm_runtime_put_sync(netdev->dev.parent);
534 
535 	if (ret_val) {
536 		/* a read error occurred, throw away the result */
537 		memset(eeprom_buff, 0xff, sizeof(u16) *
538 		       (last_word - first_word + 1));
539 	} else {
540 		/* Device's eeprom is always little-endian, word addressable */
541 		for (i = 0; i < last_word - first_word + 1; i++)
542 			le16_to_cpus(&eeprom_buff[i]);
543 	}
544 
545 	memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
546 	kfree(eeprom_buff);
547 
548 	return ret_val;
549 }
550 
551 static int e1000_set_eeprom(struct net_device *netdev,
552 			    struct ethtool_eeprom *eeprom, u8 *bytes)
553 {
554 	struct e1000_adapter *adapter = netdev_priv(netdev);
555 	struct e1000_hw *hw = &adapter->hw;
556 	u16 *eeprom_buff;
557 	void *ptr;
558 	int max_len;
559 	int first_word;
560 	int last_word;
561 	int ret_val = 0;
562 	u16 i;
563 
564 	if (eeprom->len == 0)
565 		return -EOPNOTSUPP;
566 
567 	if (eeprom->magic !=
568 	    (adapter->pdev->vendor | (adapter->pdev->device << 16)))
569 		return -EFAULT;
570 
571 	if (adapter->flags & FLAG_READ_ONLY_NVM)
572 		return -EINVAL;
573 
574 	max_len = hw->nvm.word_size * 2;
575 
576 	first_word = eeprom->offset >> 1;
577 	last_word = (eeprom->offset + eeprom->len - 1) >> 1;
578 	eeprom_buff = kmalloc(max_len, GFP_KERNEL);
579 	if (!eeprom_buff)
580 		return -ENOMEM;
581 
582 	ptr = (void *)eeprom_buff;
583 
584 	pm_runtime_get_sync(netdev->dev.parent);
585 
586 	if (eeprom->offset & 1) {
587 		/* need read/modify/write of first changed EEPROM word */
588 		/* only the second byte of the word is being modified */
589 		ret_val = e1000_read_nvm(hw, first_word, 1, &eeprom_buff[0]);
590 		ptr++;
591 	}
592 	if (((eeprom->offset + eeprom->len) & 1) && (!ret_val))
593 		/* need read/modify/write of last changed EEPROM word */
594 		/* only the first byte of the word is being modified */
595 		ret_val = e1000_read_nvm(hw, last_word, 1,
596 					 &eeprom_buff[last_word - first_word]);
597 
598 	if (ret_val)
599 		goto out;
600 
601 	/* Device's eeprom is always little-endian, word addressable */
602 	for (i = 0; i < last_word - first_word + 1; i++)
603 		le16_to_cpus(&eeprom_buff[i]);
604 
605 	memcpy(ptr, bytes, eeprom->len);
606 
607 	for (i = 0; i < last_word - first_word + 1; i++)
608 		cpu_to_le16s(&eeprom_buff[i]);
609 
610 	ret_val = e1000_write_nvm(hw, first_word,
611 				  last_word - first_word + 1, eeprom_buff);
612 
613 	if (ret_val)
614 		goto out;
615 
616 	/* Update the checksum over the first part of the EEPROM if needed
617 	 * and flush shadow RAM for applicable controllers
618 	 */
619 	if ((first_word <= NVM_CHECKSUM_REG) ||
620 	    (hw->mac.type == e1000_82583) ||
621 	    (hw->mac.type == e1000_82574) ||
622 	    (hw->mac.type == e1000_82573))
623 		ret_val = e1000e_update_nvm_checksum(hw);
624 
625 out:
626 	pm_runtime_put_sync(netdev->dev.parent);
627 	kfree(eeprom_buff);
628 	return ret_val;
629 }
630 
631 static void e1000_get_drvinfo(struct net_device *netdev,
632 			      struct ethtool_drvinfo *drvinfo)
633 {
634 	struct e1000_adapter *adapter = netdev_priv(netdev);
635 
636 	strlcpy(drvinfo->driver, e1000e_driver_name, sizeof(drvinfo->driver));
637 	strlcpy(drvinfo->version, e1000e_driver_version,
638 		sizeof(drvinfo->version));
639 
640 	/* EEPROM image version # is reported as firmware version # for
641 	 * PCI-E controllers
642 	 */
643 	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
644 		 "%d.%d-%d",
645 		 (adapter->eeprom_vers & 0xF000) >> 12,
646 		 (adapter->eeprom_vers & 0x0FF0) >> 4,
647 		 (adapter->eeprom_vers & 0x000F));
648 
649 	strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
650 		sizeof(drvinfo->bus_info));
651 	drvinfo->regdump_len = e1000_get_regs_len(netdev);
652 	drvinfo->eedump_len = e1000_get_eeprom_len(netdev);
653 }
654 
655 static void e1000_get_ringparam(struct net_device *netdev,
656 				struct ethtool_ringparam *ring)
657 {
658 	struct e1000_adapter *adapter = netdev_priv(netdev);
659 
660 	ring->rx_max_pending = E1000_MAX_RXD;
661 	ring->tx_max_pending = E1000_MAX_TXD;
662 	ring->rx_pending = adapter->rx_ring_count;
663 	ring->tx_pending = adapter->tx_ring_count;
664 }
665 
666 static int e1000_set_ringparam(struct net_device *netdev,
667 			       struct ethtool_ringparam *ring)
668 {
669 	struct e1000_adapter *adapter = netdev_priv(netdev);
670 	struct e1000_ring *temp_tx = NULL, *temp_rx = NULL;
671 	int err = 0, size = sizeof(struct e1000_ring);
672 	bool set_tx = false, set_rx = false;
673 	u16 new_rx_count, new_tx_count;
674 
675 	if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
676 		return -EINVAL;
677 
678 	new_rx_count = clamp_t(u32, ring->rx_pending, E1000_MIN_RXD,
679 			       E1000_MAX_RXD);
680 	new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
681 
682 	new_tx_count = clamp_t(u32, ring->tx_pending, E1000_MIN_TXD,
683 			       E1000_MAX_TXD);
684 	new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
685 
686 	if ((new_tx_count == adapter->tx_ring_count) &&
687 	    (new_rx_count == adapter->rx_ring_count))
688 		/* nothing to do */
689 		return 0;
690 
691 	while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
692 		usleep_range(1000, 2000);
693 
694 	if (!netif_running(adapter->netdev)) {
695 		/* Set counts now and allocate resources during open() */
696 		adapter->tx_ring->count = new_tx_count;
697 		adapter->rx_ring->count = new_rx_count;
698 		adapter->tx_ring_count = new_tx_count;
699 		adapter->rx_ring_count = new_rx_count;
700 		goto clear_reset;
701 	}
702 
703 	set_tx = (new_tx_count != adapter->tx_ring_count);
704 	set_rx = (new_rx_count != adapter->rx_ring_count);
705 
706 	/* Allocate temporary storage for ring updates */
707 	if (set_tx) {
708 		temp_tx = vmalloc(size);
709 		if (!temp_tx) {
710 			err = -ENOMEM;
711 			goto free_temp;
712 		}
713 	}
714 	if (set_rx) {
715 		temp_rx = vmalloc(size);
716 		if (!temp_rx) {
717 			err = -ENOMEM;
718 			goto free_temp;
719 		}
720 	}
721 
722 	pm_runtime_get_sync(netdev->dev.parent);
723 
724 	e1000e_down(adapter, true);
725 
726 	/* We can't just free everything and then setup again, because the
727 	 * ISRs in MSI-X mode get passed pointers to the Tx and Rx ring
728 	 * structs.  First, attempt to allocate new resources...
729 	 */
730 	if (set_tx) {
731 		memcpy(temp_tx, adapter->tx_ring, size);
732 		temp_tx->count = new_tx_count;
733 		err = e1000e_setup_tx_resources(temp_tx);
734 		if (err)
735 			goto err_setup;
736 	}
737 	if (set_rx) {
738 		memcpy(temp_rx, adapter->rx_ring, size);
739 		temp_rx->count = new_rx_count;
740 		err = e1000e_setup_rx_resources(temp_rx);
741 		if (err)
742 			goto err_setup_rx;
743 	}
744 
745 	/* ...then free the old resources and copy back any new ring data */
746 	if (set_tx) {
747 		e1000e_free_tx_resources(adapter->tx_ring);
748 		memcpy(adapter->tx_ring, temp_tx, size);
749 		adapter->tx_ring_count = new_tx_count;
750 	}
751 	if (set_rx) {
752 		e1000e_free_rx_resources(adapter->rx_ring);
753 		memcpy(adapter->rx_ring, temp_rx, size);
754 		adapter->rx_ring_count = new_rx_count;
755 	}
756 
757 err_setup_rx:
758 	if (err && set_tx)
759 		e1000e_free_tx_resources(temp_tx);
760 err_setup:
761 	e1000e_up(adapter);
762 	pm_runtime_put_sync(netdev->dev.parent);
763 free_temp:
764 	vfree(temp_tx);
765 	vfree(temp_rx);
766 clear_reset:
767 	clear_bit(__E1000_RESETTING, &adapter->state);
768 	return err;
769 }
770 
771 static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data,
772 			     int reg, int offset, u32 mask, u32 write)
773 {
774 	u32 pat, val;
775 	static const u32 test[] = {
776 		0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
777 	};
778 	for (pat = 0; pat < ARRAY_SIZE(test); pat++) {
779 		E1000_WRITE_REG_ARRAY(&adapter->hw, reg, offset,
780 				      (test[pat] & write));
781 		val = E1000_READ_REG_ARRAY(&adapter->hw, reg, offset);
782 		if (val != (test[pat] & write & mask)) {
783 			e_err("pattern test failed (reg 0x%05X): got 0x%08X expected 0x%08X\n",
784 			      reg + (offset << 2), val,
785 			      (test[pat] & write & mask));
786 			*data = reg;
787 			return true;
788 		}
789 	}
790 	return false;
791 }
792 
793 static bool reg_set_and_check(struct e1000_adapter *adapter, u64 *data,
794 			      int reg, u32 mask, u32 write)
795 {
796 	u32 val;
797 
798 	__ew32(&adapter->hw, reg, write & mask);
799 	val = __er32(&adapter->hw, reg);
800 	if ((write & mask) != (val & mask)) {
801 		e_err("set/check test failed (reg 0x%05X): got 0x%08X expected 0x%08X\n",
802 		      reg, (val & mask), (write & mask));
803 		*data = reg;
804 		return true;
805 	}
806 	return false;
807 }
808 
809 #define REG_PATTERN_TEST_ARRAY(reg, offset, mask, write)                       \
810 	do {                                                                   \
811 		if (reg_pattern_test(adapter, data, reg, offset, mask, write)) \
812 			return 1;                                              \
813 	} while (0)
814 #define REG_PATTERN_TEST(reg, mask, write)                                     \
815 	REG_PATTERN_TEST_ARRAY(reg, 0, mask, write)
816 
817 #define REG_SET_AND_CHECK(reg, mask, write)                                    \
818 	do {                                                                   \
819 		if (reg_set_and_check(adapter, data, reg, mask, write))        \
820 			return 1;                                              \
821 	} while (0)
822 
823 static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
824 {
825 	struct e1000_hw *hw = &adapter->hw;
826 	struct e1000_mac_info *mac = &adapter->hw.mac;
827 	u32 value;
828 	u32 before;
829 	u32 after;
830 	u32 i;
831 	u32 toggle;
832 	u32 mask;
833 	u32 wlock_mac = 0;
834 
835 	/* The status register is Read Only, so a write should fail.
836 	 * Some bits that get toggled are ignored.  There are several bits
837 	 * on newer hardware that are r/w.
838 	 */
839 	switch (mac->type) {
840 	case e1000_82571:
841 	case e1000_82572:
842 	case e1000_80003es2lan:
843 		toggle = 0x7FFFF3FF;
844 		break;
845 	default:
846 		toggle = 0x7FFFF033;
847 		break;
848 	}
849 
850 	before = er32(STATUS);
851 	value = (er32(STATUS) & toggle);
852 	ew32(STATUS, toggle);
853 	after = er32(STATUS) & toggle;
854 	if (value != after) {
855 		e_err("failed STATUS register test got: 0x%08X expected: 0x%08X\n",
856 		      after, value);
857 		*data = 1;
858 		return 1;
859 	}
860 	/* restore previous status */
861 	ew32(STATUS, before);
862 
863 	if (!(adapter->flags & FLAG_IS_ICH)) {
864 		REG_PATTERN_TEST(E1000_FCAL, 0xFFFFFFFF, 0xFFFFFFFF);
865 		REG_PATTERN_TEST(E1000_FCAH, 0x0000FFFF, 0xFFFFFFFF);
866 		REG_PATTERN_TEST(E1000_FCT, 0x0000FFFF, 0xFFFFFFFF);
867 		REG_PATTERN_TEST(E1000_VET, 0x0000FFFF, 0xFFFFFFFF);
868 	}
869 
870 	REG_PATTERN_TEST(E1000_RDTR, 0x0000FFFF, 0xFFFFFFFF);
871 	REG_PATTERN_TEST(E1000_RDBAH(0), 0xFFFFFFFF, 0xFFFFFFFF);
872 	REG_PATTERN_TEST(E1000_RDLEN(0), 0x000FFF80, 0x000FFFFF);
873 	REG_PATTERN_TEST(E1000_RDH(0), 0x0000FFFF, 0x0000FFFF);
874 	REG_PATTERN_TEST(E1000_RDT(0), 0x0000FFFF, 0x0000FFFF);
875 	REG_PATTERN_TEST(E1000_FCRTH, 0x0000FFF8, 0x0000FFF8);
876 	REG_PATTERN_TEST(E1000_FCTTV, 0x0000FFFF, 0x0000FFFF);
877 	REG_PATTERN_TEST(E1000_TIPG, 0x3FFFFFFF, 0x3FFFFFFF);
878 	REG_PATTERN_TEST(E1000_TDBAH(0), 0xFFFFFFFF, 0xFFFFFFFF);
879 	REG_PATTERN_TEST(E1000_TDLEN(0), 0x000FFF80, 0x000FFFFF);
880 
881 	REG_SET_AND_CHECK(E1000_RCTL, 0xFFFFFFFF, 0x00000000);
882 
883 	before = ((adapter->flags & FLAG_IS_ICH) ? 0x06C3B33E : 0x06DFB3FE);
884 	REG_SET_AND_CHECK(E1000_RCTL, before, 0x003FFFFB);
885 	REG_SET_AND_CHECK(E1000_TCTL, 0xFFFFFFFF, 0x00000000);
886 
887 	REG_SET_AND_CHECK(E1000_RCTL, before, 0xFFFFFFFF);
888 	REG_PATTERN_TEST(E1000_RDBAL(0), 0xFFFFFFF0, 0xFFFFFFFF);
889 	if (!(adapter->flags & FLAG_IS_ICH))
890 		REG_PATTERN_TEST(E1000_TXCW, 0xC000FFFF, 0x0000FFFF);
891 	REG_PATTERN_TEST(E1000_TDBAL(0), 0xFFFFFFF0, 0xFFFFFFFF);
892 	REG_PATTERN_TEST(E1000_TIDV, 0x0000FFFF, 0x0000FFFF);
893 	mask = 0x8003FFFF;
894 	switch (mac->type) {
895 	case e1000_ich10lan:
896 	case e1000_pchlan:
897 	case e1000_pch2lan:
898 	case e1000_pch_lpt:
899 		mask |= (1 << 18);
900 		break;
901 	default:
902 		break;
903 	}
904 
905 	if (mac->type == e1000_pch_lpt)
906 		wlock_mac = (er32(FWSM) & E1000_FWSM_WLOCK_MAC_MASK) >>
907 		    E1000_FWSM_WLOCK_MAC_SHIFT;
908 
909 	for (i = 0; i < mac->rar_entry_count; i++) {
910 		if (mac->type == e1000_pch_lpt) {
911 			/* Cannot test write-protected SHRAL[n] registers */
912 			if ((wlock_mac == 1) || (wlock_mac && (i > wlock_mac)))
913 				continue;
914 
915 			/* SHRAH[9] different than the others */
916 			if (i == 10)
917 				mask |= (1 << 30);
918 			else
919 				mask &= ~(1 << 30);
920 		}
921 		if (mac->type == e1000_pch2lan) {
922 			/* SHRAH[0,1,2] different than previous */
923 			if (i == 1)
924 				mask &= 0xFFF4FFFF;
925 			/* SHRAH[3] different than SHRAH[0,1,2] */
926 			if (i == 4)
927 				mask |= (1 << 30);
928 			/* RAR[1-6] owned by management engine - skipping */
929 			if (i > 0)
930 				i += 6;
931 		}
932 
933 		REG_PATTERN_TEST_ARRAY(E1000_RA, ((i << 1) + 1), mask,
934 				       0xFFFFFFFF);
935 		/* reset index to actual value */
936 		if ((mac->type == e1000_pch2lan) && (i > 6))
937 			i -= 6;
938 	}
939 
940 	for (i = 0; i < mac->mta_reg_count; i++)
941 		REG_PATTERN_TEST_ARRAY(E1000_MTA, i, 0xFFFFFFFF, 0xFFFFFFFF);
942 
943 	*data = 0;
944 
945 	return 0;
946 }
947 
948 static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data)
949 {
950 	u16 temp;
951 	u16 checksum = 0;
952 	u16 i;
953 
954 	*data = 0;
955 	/* Read and add up the contents of the EEPROM */
956 	for (i = 0; i < (NVM_CHECKSUM_REG + 1); i++) {
957 		if ((e1000_read_nvm(&adapter->hw, i, 1, &temp)) < 0) {
958 			*data = 1;
959 			return *data;
960 		}
961 		checksum += temp;
962 	}
963 
964 	/* If Checksum is not Correct return error else test passed */
965 	if ((checksum != (u16)NVM_SUM) && !(*data))
966 		*data = 2;
967 
968 	return *data;
969 }
970 
971 static irqreturn_t e1000_test_intr(int __always_unused irq, void *data)
972 {
973 	struct net_device *netdev = (struct net_device *)data;
974 	struct e1000_adapter *adapter = netdev_priv(netdev);
975 	struct e1000_hw *hw = &adapter->hw;
976 
977 	adapter->test_icr |= er32(ICR);
978 
979 	return IRQ_HANDLED;
980 }
981 
982 static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
983 {
984 	struct net_device *netdev = adapter->netdev;
985 	struct e1000_hw *hw = &adapter->hw;
986 	u32 mask;
987 	u32 shared_int = 1;
988 	u32 irq = adapter->pdev->irq;
989 	int i;
990 	int ret_val = 0;
991 	int int_mode = E1000E_INT_MODE_LEGACY;
992 
993 	*data = 0;
994 
995 	/* NOTE: we don't test MSI/MSI-X interrupts here, yet */
996 	if (adapter->int_mode == E1000E_INT_MODE_MSIX) {
997 		int_mode = adapter->int_mode;
998 		e1000e_reset_interrupt_capability(adapter);
999 		adapter->int_mode = E1000E_INT_MODE_LEGACY;
1000 		e1000e_set_interrupt_capability(adapter);
1001 	}
1002 	/* Hook up test interrupt handler just for this test */
1003 	if (!request_irq(irq, e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,
1004 			 netdev)) {
1005 		shared_int = 0;
1006 	} else if (request_irq(irq, e1000_test_intr, IRQF_SHARED, netdev->name,
1007 			       netdev)) {
1008 		*data = 1;
1009 		ret_val = -1;
1010 		goto out;
1011 	}
1012 	e_info("testing %s interrupt\n", (shared_int ? "shared" : "unshared"));
1013 
1014 	/* Disable all the interrupts */
1015 	ew32(IMC, 0xFFFFFFFF);
1016 	e1e_flush();
1017 	usleep_range(10000, 20000);
1018 
1019 	/* Test each interrupt */
1020 	for (i = 0; i < 10; i++) {
1021 		/* Interrupt to test */
1022 		mask = 1 << i;
1023 
1024 		if (adapter->flags & FLAG_IS_ICH) {
1025 			switch (mask) {
1026 			case E1000_ICR_RXSEQ:
1027 				continue;
1028 			case 0x00000100:
1029 				if (adapter->hw.mac.type == e1000_ich8lan ||
1030 				    adapter->hw.mac.type == e1000_ich9lan)
1031 					continue;
1032 				break;
1033 			default:
1034 				break;
1035 			}
1036 		}
1037 
1038 		if (!shared_int) {
1039 			/* Disable the interrupt to be reported in
1040 			 * the cause register and then force the same
1041 			 * interrupt and see if one gets posted.  If
1042 			 * an interrupt was posted to the bus, the
1043 			 * test failed.
1044 			 */
1045 			adapter->test_icr = 0;
1046 			ew32(IMC, mask);
1047 			ew32(ICS, mask);
1048 			e1e_flush();
1049 			usleep_range(10000, 20000);
1050 
1051 			if (adapter->test_icr & mask) {
1052 				*data = 3;
1053 				break;
1054 			}
1055 		}
1056 
1057 		/* Enable the interrupt to be reported in
1058 		 * the cause register and then force the same
1059 		 * interrupt and see if one gets posted.  If
1060 		 * an interrupt was not posted to the bus, the
1061 		 * test failed.
1062 		 */
1063 		adapter->test_icr = 0;
1064 		ew32(IMS, mask);
1065 		ew32(ICS, mask);
1066 		e1e_flush();
1067 		usleep_range(10000, 20000);
1068 
1069 		if (!(adapter->test_icr & mask)) {
1070 			*data = 4;
1071 			break;
1072 		}
1073 
1074 		if (!shared_int) {
1075 			/* Disable the other interrupts to be reported in
1076 			 * the cause register and then force the other
1077 			 * interrupts and see if any get posted.  If
1078 			 * an interrupt was posted to the bus, the
1079 			 * test failed.
1080 			 */
1081 			adapter->test_icr = 0;
1082 			ew32(IMC, ~mask & 0x00007FFF);
1083 			ew32(ICS, ~mask & 0x00007FFF);
1084 			e1e_flush();
1085 			usleep_range(10000, 20000);
1086 
1087 			if (adapter->test_icr) {
1088 				*data = 5;
1089 				break;
1090 			}
1091 		}
1092 	}
1093 
1094 	/* Disable all the interrupts */
1095 	ew32(IMC, 0xFFFFFFFF);
1096 	e1e_flush();
1097 	usleep_range(10000, 20000);
1098 
1099 	/* Unhook test interrupt handler */
1100 	free_irq(irq, netdev);
1101 
1102 out:
1103 	if (int_mode == E1000E_INT_MODE_MSIX) {
1104 		e1000e_reset_interrupt_capability(adapter);
1105 		adapter->int_mode = int_mode;
1106 		e1000e_set_interrupt_capability(adapter);
1107 	}
1108 
1109 	return ret_val;
1110 }
1111 
1112 static void e1000_free_desc_rings(struct e1000_adapter *adapter)
1113 {
1114 	struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1115 	struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1116 	struct pci_dev *pdev = adapter->pdev;
1117 	struct e1000_buffer *buffer_info;
1118 	int i;
1119 
1120 	if (tx_ring->desc && tx_ring->buffer_info) {
1121 		for (i = 0; i < tx_ring->count; i++) {
1122 			buffer_info = &tx_ring->buffer_info[i];
1123 
1124 			if (buffer_info->dma)
1125 				dma_unmap_single(&pdev->dev,
1126 						 buffer_info->dma,
1127 						 buffer_info->length,
1128 						 DMA_TO_DEVICE);
1129 			if (buffer_info->skb)
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 			if (buffer_info->skb)
1143 				dev_kfree_skb(buffer_info->skb);
1144 		}
1145 	}
1146 
1147 	if (tx_ring->desc) {
1148 		dma_free_coherent(&pdev->dev, tx_ring->size, tx_ring->desc,
1149 				  tx_ring->dma);
1150 		tx_ring->desc = NULL;
1151 	}
1152 	if (rx_ring->desc) {
1153 		dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc,
1154 				  rx_ring->dma);
1155 		rx_ring->desc = NULL;
1156 	}
1157 
1158 	kfree(tx_ring->buffer_info);
1159 	tx_ring->buffer_info = NULL;
1160 	kfree(rx_ring->buffer_info);
1161 	rx_ring->buffer_info = NULL;
1162 }
1163 
1164 static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
1165 {
1166 	struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1167 	struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1168 	struct pci_dev *pdev = adapter->pdev;
1169 	struct e1000_hw *hw = &adapter->hw;
1170 	u32 rctl;
1171 	int i;
1172 	int ret_val;
1173 
1174 	/* Setup Tx descriptor ring and Tx buffers */
1175 
1176 	if (!tx_ring->count)
1177 		tx_ring->count = E1000_DEFAULT_TXD;
1178 
1179 	tx_ring->buffer_info = kcalloc(tx_ring->count,
1180 				       sizeof(struct e1000_buffer), GFP_KERNEL);
1181 	if (!tx_ring->buffer_info) {
1182 		ret_val = 1;
1183 		goto err_nomem;
1184 	}
1185 
1186 	tx_ring->size = tx_ring->count * sizeof(struct e1000_tx_desc);
1187 	tx_ring->size = ALIGN(tx_ring->size, 4096);
1188 	tx_ring->desc = dma_alloc_coherent(&pdev->dev, tx_ring->size,
1189 					   &tx_ring->dma, GFP_KERNEL);
1190 	if (!tx_ring->desc) {
1191 		ret_val = 2;
1192 		goto err_nomem;
1193 	}
1194 	tx_ring->next_to_use = 0;
1195 	tx_ring->next_to_clean = 0;
1196 
1197 	ew32(TDBAL(0), ((u64)tx_ring->dma & 0x00000000FFFFFFFF));
1198 	ew32(TDBAH(0), ((u64)tx_ring->dma >> 32));
1199 	ew32(TDLEN(0), tx_ring->count * sizeof(struct e1000_tx_desc));
1200 	ew32(TDH(0), 0);
1201 	ew32(TDT(0), 0);
1202 	ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN | E1000_TCTL_MULR |
1203 	     E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |
1204 	     E1000_COLLISION_DISTANCE << E1000_COLD_SHIFT);
1205 
1206 	for (i = 0; i < tx_ring->count; i++) {
1207 		struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*tx_ring, i);
1208 		struct sk_buff *skb;
1209 		unsigned int skb_size = 1024;
1210 
1211 		skb = alloc_skb(skb_size, GFP_KERNEL);
1212 		if (!skb) {
1213 			ret_val = 3;
1214 			goto err_nomem;
1215 		}
1216 		skb_put(skb, skb_size);
1217 		tx_ring->buffer_info[i].skb = skb;
1218 		tx_ring->buffer_info[i].length = skb->len;
1219 		tx_ring->buffer_info[i].dma =
1220 		    dma_map_single(&pdev->dev, skb->data, skb->len,
1221 				   DMA_TO_DEVICE);
1222 		if (dma_mapping_error(&pdev->dev,
1223 				      tx_ring->buffer_info[i].dma)) {
1224 			ret_val = 4;
1225 			goto err_nomem;
1226 		}
1227 		tx_desc->buffer_addr = cpu_to_le64(tx_ring->buffer_info[i].dma);
1228 		tx_desc->lower.data = cpu_to_le32(skb->len);
1229 		tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |
1230 						   E1000_TXD_CMD_IFCS |
1231 						   E1000_TXD_CMD_RS);
1232 		tx_desc->upper.data = 0;
1233 	}
1234 
1235 	/* Setup Rx descriptor ring and Rx buffers */
1236 
1237 	if (!rx_ring->count)
1238 		rx_ring->count = E1000_DEFAULT_RXD;
1239 
1240 	rx_ring->buffer_info = kcalloc(rx_ring->count,
1241 				       sizeof(struct e1000_buffer), GFP_KERNEL);
1242 	if (!rx_ring->buffer_info) {
1243 		ret_val = 5;
1244 		goto err_nomem;
1245 	}
1246 
1247 	rx_ring->size = rx_ring->count * sizeof(union e1000_rx_desc_extended);
1248 	rx_ring->desc = dma_alloc_coherent(&pdev->dev, rx_ring->size,
1249 					   &rx_ring->dma, GFP_KERNEL);
1250 	if (!rx_ring->desc) {
1251 		ret_val = 6;
1252 		goto err_nomem;
1253 	}
1254 	rx_ring->next_to_use = 0;
1255 	rx_ring->next_to_clean = 0;
1256 
1257 	rctl = er32(RCTL);
1258 	if (!(adapter->flags2 & FLAG2_NO_DISABLE_RX))
1259 		ew32(RCTL, rctl & ~E1000_RCTL_EN);
1260 	ew32(RDBAL(0), ((u64)rx_ring->dma & 0xFFFFFFFF));
1261 	ew32(RDBAH(0), ((u64)rx_ring->dma >> 32));
1262 	ew32(RDLEN(0), rx_ring->size);
1263 	ew32(RDH(0), 0);
1264 	ew32(RDT(0), 0);
1265 	rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
1266 	    E1000_RCTL_UPE | E1000_RCTL_MPE | E1000_RCTL_LPE |
1267 	    E1000_RCTL_SBP | E1000_RCTL_SECRC |
1268 	    E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
1269 	    (adapter->hw.mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
1270 	ew32(RCTL, rctl);
1271 
1272 	for (i = 0; i < rx_ring->count; i++) {
1273 		union e1000_rx_desc_extended *rx_desc;
1274 		struct sk_buff *skb;
1275 
1276 		skb = alloc_skb(2048 + NET_IP_ALIGN, GFP_KERNEL);
1277 		if (!skb) {
1278 			ret_val = 7;
1279 			goto err_nomem;
1280 		}
1281 		skb_reserve(skb, NET_IP_ALIGN);
1282 		rx_ring->buffer_info[i].skb = skb;
1283 		rx_ring->buffer_info[i].dma =
1284 		    dma_map_single(&pdev->dev, skb->data, 2048,
1285 				   DMA_FROM_DEVICE);
1286 		if (dma_mapping_error(&pdev->dev,
1287 				      rx_ring->buffer_info[i].dma)) {
1288 			ret_val = 8;
1289 			goto err_nomem;
1290 		}
1291 		rx_desc = E1000_RX_DESC_EXT(*rx_ring, i);
1292 		rx_desc->read.buffer_addr =
1293 		    cpu_to_le64(rx_ring->buffer_info[i].dma);
1294 		memset(skb->data, 0x00, skb->len);
1295 	}
1296 
1297 	return 0;
1298 
1299 err_nomem:
1300 	e1000_free_desc_rings(adapter);
1301 	return ret_val;
1302 }
1303 
1304 static void e1000_phy_disable_receiver(struct e1000_adapter *adapter)
1305 {
1306 	/* Write out to PHY registers 29 and 30 to disable the Receiver. */
1307 	e1e_wphy(&adapter->hw, 29, 0x001F);
1308 	e1e_wphy(&adapter->hw, 30, 0x8FFC);
1309 	e1e_wphy(&adapter->hw, 29, 0x001A);
1310 	e1e_wphy(&adapter->hw, 30, 0x8FF0);
1311 }
1312 
1313 static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
1314 {
1315 	struct e1000_hw *hw = &adapter->hw;
1316 	u32 ctrl_reg = 0;
1317 	u16 phy_reg = 0;
1318 	s32 ret_val = 0;
1319 
1320 	hw->mac.autoneg = 0;
1321 
1322 	if (hw->phy.type == e1000_phy_ife) {
1323 		/* force 100, set loopback */
1324 		e1e_wphy(hw, MII_BMCR, 0x6100);
1325 
1326 		/* Now set up the MAC to the same speed/duplex as the PHY. */
1327 		ctrl_reg = er32(CTRL);
1328 		ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1329 		ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1330 			     E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1331 			     E1000_CTRL_SPD_100 |/* Force Speed to 100 */
1332 			     E1000_CTRL_FD);	 /* Force Duplex to FULL */
1333 
1334 		ew32(CTRL, ctrl_reg);
1335 		e1e_flush();
1336 		usleep_range(500, 1000);
1337 
1338 		return 0;
1339 	}
1340 
1341 	/* Specific PHY configuration for loopback */
1342 	switch (hw->phy.type) {
1343 	case e1000_phy_m88:
1344 		/* Auto-MDI/MDIX Off */
1345 		e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, 0x0808);
1346 		/* reset to update Auto-MDI/MDIX */
1347 		e1e_wphy(hw, MII_BMCR, 0x9140);
1348 		/* autoneg off */
1349 		e1e_wphy(hw, MII_BMCR, 0x8140);
1350 		break;
1351 	case e1000_phy_gg82563:
1352 		e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x1CC);
1353 		break;
1354 	case e1000_phy_bm:
1355 		/* Set Default MAC Interface speed to 1GB */
1356 		e1e_rphy(hw, PHY_REG(2, 21), &phy_reg);
1357 		phy_reg &= ~0x0007;
1358 		phy_reg |= 0x006;
1359 		e1e_wphy(hw, PHY_REG(2, 21), phy_reg);
1360 		/* Assert SW reset for above settings to take effect */
1361 		hw->phy.ops.commit(hw);
1362 		usleep_range(1000, 2000);
1363 		/* Force Full Duplex */
1364 		e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
1365 		e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x000C);
1366 		/* Set Link Up (in force link) */
1367 		e1e_rphy(hw, PHY_REG(776, 16), &phy_reg);
1368 		e1e_wphy(hw, PHY_REG(776, 16), phy_reg | 0x0040);
1369 		/* Force Link */
1370 		e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
1371 		e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x0040);
1372 		/* Set Early Link Enable */
1373 		e1e_rphy(hw, PHY_REG(769, 20), &phy_reg);
1374 		e1e_wphy(hw, PHY_REG(769, 20), phy_reg | 0x0400);
1375 		break;
1376 	case e1000_phy_82577:
1377 	case e1000_phy_82578:
1378 		/* Workaround: K1 must be disabled for stable 1Gbps operation */
1379 		ret_val = hw->phy.ops.acquire(hw);
1380 		if (ret_val) {
1381 			e_err("Cannot setup 1Gbps loopback.\n");
1382 			return ret_val;
1383 		}
1384 		e1000_configure_k1_ich8lan(hw, false);
1385 		hw->phy.ops.release(hw);
1386 		break;
1387 	case e1000_phy_82579:
1388 		/* Disable PHY energy detect power down */
1389 		e1e_rphy(hw, PHY_REG(0, 21), &phy_reg);
1390 		e1e_wphy(hw, PHY_REG(0, 21), phy_reg & ~(1 << 3));
1391 		/* Disable full chip energy detect */
1392 		e1e_rphy(hw, PHY_REG(776, 18), &phy_reg);
1393 		e1e_wphy(hw, PHY_REG(776, 18), phy_reg | 1);
1394 		/* Enable loopback on the PHY */
1395 		e1e_wphy(hw, I82577_PHY_LBK_CTRL, 0x8001);
1396 		break;
1397 	default:
1398 		break;
1399 	}
1400 
1401 	/* force 1000, set loopback */
1402 	e1e_wphy(hw, MII_BMCR, 0x4140);
1403 	msleep(250);
1404 
1405 	/* Now set up the MAC to the same speed/duplex as the PHY. */
1406 	ctrl_reg = er32(CTRL);
1407 	ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1408 	ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1409 		     E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1410 		     E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
1411 		     E1000_CTRL_FD);	 /* Force Duplex to FULL */
1412 
1413 	if (adapter->flags & FLAG_IS_ICH)
1414 		ctrl_reg |= E1000_CTRL_SLU;	/* Set Link Up */
1415 
1416 	if (hw->phy.media_type == e1000_media_type_copper &&
1417 	    hw->phy.type == e1000_phy_m88) {
1418 		ctrl_reg |= E1000_CTRL_ILOS;	/* Invert Loss of Signal */
1419 	} else {
1420 		/* Set the ILOS bit on the fiber Nic if half duplex link is
1421 		 * detected.
1422 		 */
1423 		if ((er32(STATUS) & E1000_STATUS_FD) == 0)
1424 			ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU);
1425 	}
1426 
1427 	ew32(CTRL, ctrl_reg);
1428 
1429 	/* Disable the receiver on the PHY so when a cable is plugged in, the
1430 	 * PHY does not begin to autoneg when a cable is reconnected to the NIC.
1431 	 */
1432 	if (hw->phy.type == e1000_phy_m88)
1433 		e1000_phy_disable_receiver(adapter);
1434 
1435 	usleep_range(500, 1000);
1436 
1437 	return 0;
1438 }
1439 
1440 static int e1000_set_82571_fiber_loopback(struct e1000_adapter *adapter)
1441 {
1442 	struct e1000_hw *hw = &adapter->hw;
1443 	u32 ctrl = er32(CTRL);
1444 	int link;
1445 
1446 	/* special requirements for 82571/82572 fiber adapters */
1447 
1448 	/* jump through hoops to make sure link is up because serdes
1449 	 * link is hardwired up
1450 	 */
1451 	ctrl |= E1000_CTRL_SLU;
1452 	ew32(CTRL, ctrl);
1453 
1454 	/* disable autoneg */
1455 	ctrl = er32(TXCW);
1456 	ctrl &= ~(1 << 31);
1457 	ew32(TXCW, ctrl);
1458 
1459 	link = (er32(STATUS) & E1000_STATUS_LU);
1460 
1461 	if (!link) {
1462 		/* set invert loss of signal */
1463 		ctrl = er32(CTRL);
1464 		ctrl |= E1000_CTRL_ILOS;
1465 		ew32(CTRL, ctrl);
1466 	}
1467 
1468 	/* special write to serdes control register to enable SerDes analog
1469 	 * loopback
1470 	 */
1471 	ew32(SCTL, E1000_SCTL_ENABLE_SERDES_LOOPBACK);
1472 	e1e_flush();
1473 	usleep_range(10000, 20000);
1474 
1475 	return 0;
1476 }
1477 
1478 /* only call this for fiber/serdes connections to es2lan */
1479 static int e1000_set_es2lan_mac_loopback(struct e1000_adapter *adapter)
1480 {
1481 	struct e1000_hw *hw = &adapter->hw;
1482 	u32 ctrlext = er32(CTRL_EXT);
1483 	u32 ctrl = er32(CTRL);
1484 
1485 	/* save CTRL_EXT to restore later, reuse an empty variable (unused
1486 	 * on mac_type 80003es2lan)
1487 	 */
1488 	adapter->tx_fifo_head = ctrlext;
1489 
1490 	/* clear the serdes mode bits, putting the device into mac loopback */
1491 	ctrlext &= ~E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES;
1492 	ew32(CTRL_EXT, ctrlext);
1493 
1494 	/* force speed to 1000/FD, link up */
1495 	ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100);
1496 	ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX |
1497 		 E1000_CTRL_SPD_1000 | E1000_CTRL_FD);
1498 	ew32(CTRL, ctrl);
1499 
1500 	/* set mac loopback */
1501 	ctrl = er32(RCTL);
1502 	ctrl |= E1000_RCTL_LBM_MAC;
1503 	ew32(RCTL, ctrl);
1504 
1505 	/* set testing mode parameters (no need to reset later) */
1506 #define KMRNCTRLSTA_OPMODE (0x1F << 16)
1507 #define KMRNCTRLSTA_OPMODE_1GB_FD_GMII 0x0582
1508 	ew32(KMRNCTRLSTA,
1509 	     (KMRNCTRLSTA_OPMODE | KMRNCTRLSTA_OPMODE_1GB_FD_GMII));
1510 
1511 	return 0;
1512 }
1513 
1514 static int e1000_setup_loopback_test(struct e1000_adapter *adapter)
1515 {
1516 	struct e1000_hw *hw = &adapter->hw;
1517 	u32 rctl;
1518 
1519 	if (hw->phy.media_type == e1000_media_type_fiber ||
1520 	    hw->phy.media_type == e1000_media_type_internal_serdes) {
1521 		switch (hw->mac.type) {
1522 		case e1000_80003es2lan:
1523 			return e1000_set_es2lan_mac_loopback(adapter);
1524 		case e1000_82571:
1525 		case e1000_82572:
1526 			return e1000_set_82571_fiber_loopback(adapter);
1527 		default:
1528 			rctl = er32(RCTL);
1529 			rctl |= E1000_RCTL_LBM_TCVR;
1530 			ew32(RCTL, rctl);
1531 			return 0;
1532 		}
1533 	} else if (hw->phy.media_type == e1000_media_type_copper) {
1534 		return e1000_integrated_phy_loopback(adapter);
1535 	}
1536 
1537 	return 7;
1538 }
1539 
1540 static void e1000_loopback_cleanup(struct e1000_adapter *adapter)
1541 {
1542 	struct e1000_hw *hw = &adapter->hw;
1543 	u32 rctl;
1544 	u16 phy_reg;
1545 
1546 	rctl = er32(RCTL);
1547 	rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
1548 	ew32(RCTL, rctl);
1549 
1550 	switch (hw->mac.type) {
1551 	case e1000_80003es2lan:
1552 		if (hw->phy.media_type == e1000_media_type_fiber ||
1553 		    hw->phy.media_type == e1000_media_type_internal_serdes) {
1554 			/* restore CTRL_EXT, stealing space from tx_fifo_head */
1555 			ew32(CTRL_EXT, adapter->tx_fifo_head);
1556 			adapter->tx_fifo_head = 0;
1557 		}
1558 		/* fall through */
1559 	case e1000_82571:
1560 	case e1000_82572:
1561 		if (hw->phy.media_type == e1000_media_type_fiber ||
1562 		    hw->phy.media_type == e1000_media_type_internal_serdes) {
1563 			ew32(SCTL, E1000_SCTL_DISABLE_SERDES_LOOPBACK);
1564 			e1e_flush();
1565 			usleep_range(10000, 20000);
1566 			break;
1567 		}
1568 		/* Fall Through */
1569 	default:
1570 		hw->mac.autoneg = 1;
1571 		if (hw->phy.type == e1000_phy_gg82563)
1572 			e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x180);
1573 		e1e_rphy(hw, MII_BMCR, &phy_reg);
1574 		if (phy_reg & BMCR_LOOPBACK) {
1575 			phy_reg &= ~BMCR_LOOPBACK;
1576 			e1e_wphy(hw, MII_BMCR, phy_reg);
1577 			if (hw->phy.ops.commit)
1578 				hw->phy.ops.commit(hw);
1579 		}
1580 		break;
1581 	}
1582 }
1583 
1584 static void e1000_create_lbtest_frame(struct sk_buff *skb,
1585 				      unsigned int frame_size)
1586 {
1587 	memset(skb->data, 0xFF, frame_size);
1588 	frame_size &= ~1;
1589 	memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
1590 	memset(&skb->data[frame_size / 2 + 10], 0xBE, 1);
1591 	memset(&skb->data[frame_size / 2 + 12], 0xAF, 1);
1592 }
1593 
1594 static int e1000_check_lbtest_frame(struct sk_buff *skb,
1595 				    unsigned int frame_size)
1596 {
1597 	frame_size &= ~1;
1598 	if (*(skb->data + 3) == 0xFF)
1599 		if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
1600 		    (*(skb->data + frame_size / 2 + 12) == 0xAF))
1601 			return 0;
1602 	return 13;
1603 }
1604 
1605 static int e1000_run_loopback_test(struct e1000_adapter *adapter)
1606 {
1607 	struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1608 	struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1609 	struct pci_dev *pdev = adapter->pdev;
1610 	struct e1000_hw *hw = &adapter->hw;
1611 	struct e1000_buffer *buffer_info;
1612 	int i, j, k, l;
1613 	int lc;
1614 	int good_cnt;
1615 	int ret_val = 0;
1616 	unsigned long time;
1617 
1618 	ew32(RDT(0), rx_ring->count - 1);
1619 
1620 	/* Calculate the loop count based on the largest descriptor ring
1621 	 * The idea is to wrap the largest ring a number of times using 64
1622 	 * send/receive pairs during each loop
1623 	 */
1624 
1625 	if (rx_ring->count <= tx_ring->count)
1626 		lc = ((tx_ring->count / 64) * 2) + 1;
1627 	else
1628 		lc = ((rx_ring->count / 64) * 2) + 1;
1629 
1630 	k = 0;
1631 	l = 0;
1632 	/* loop count loop */
1633 	for (j = 0; j <= lc; j++) {
1634 		/* send the packets */
1635 		for (i = 0; i < 64; i++) {
1636 			buffer_info = &tx_ring->buffer_info[k];
1637 
1638 			e1000_create_lbtest_frame(buffer_info->skb, 1024);
1639 			dma_sync_single_for_device(&pdev->dev,
1640 						   buffer_info->dma,
1641 						   buffer_info->length,
1642 						   DMA_TO_DEVICE);
1643 			k++;
1644 			if (k == tx_ring->count)
1645 				k = 0;
1646 		}
1647 		ew32(TDT(0), k);
1648 		e1e_flush();
1649 		msleep(200);
1650 		time = jiffies;	/* set the start time for the receive */
1651 		good_cnt = 0;
1652 		/* receive the sent packets */
1653 		do {
1654 			buffer_info = &rx_ring->buffer_info[l];
1655 
1656 			dma_sync_single_for_cpu(&pdev->dev,
1657 						buffer_info->dma, 2048,
1658 						DMA_FROM_DEVICE);
1659 
1660 			ret_val = e1000_check_lbtest_frame(buffer_info->skb,
1661 							   1024);
1662 			if (!ret_val)
1663 				good_cnt++;
1664 			l++;
1665 			if (l == rx_ring->count)
1666 				l = 0;
1667 			/* time + 20 msecs (200 msecs on 2.4) is more than
1668 			 * enough time to complete the receives, if it's
1669 			 * exceeded, break and error off
1670 			 */
1671 		} while ((good_cnt < 64) && !time_after(jiffies, time + 20));
1672 		if (good_cnt != 64) {
1673 			ret_val = 13;	/* ret_val is the same as mis-compare */
1674 			break;
1675 		}
1676 		if (time_after(jiffies, time + 20)) {
1677 			ret_val = 14;	/* error code for time out error */
1678 			break;
1679 		}
1680 	}
1681 	return ret_val;
1682 }
1683 
1684 static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data)
1685 {
1686 	struct e1000_hw *hw = &adapter->hw;
1687 
1688 	/* PHY loopback cannot be performed if SoL/IDER sessions are active */
1689 	if (hw->phy.ops.check_reset_block &&
1690 	    hw->phy.ops.check_reset_block(hw)) {
1691 		e_err("Cannot do PHY loopback test when SoL/IDER is active.\n");
1692 		*data = 0;
1693 		goto out;
1694 	}
1695 
1696 	*data = e1000_setup_desc_rings(adapter);
1697 	if (*data)
1698 		goto out;
1699 
1700 	*data = e1000_setup_loopback_test(adapter);
1701 	if (*data)
1702 		goto err_loopback;
1703 
1704 	*data = e1000_run_loopback_test(adapter);
1705 	e1000_loopback_cleanup(adapter);
1706 
1707 err_loopback:
1708 	e1000_free_desc_rings(adapter);
1709 out:
1710 	return *data;
1711 }
1712 
1713 static int e1000_link_test(struct e1000_adapter *adapter, u64 *data)
1714 {
1715 	struct e1000_hw *hw = &adapter->hw;
1716 
1717 	*data = 0;
1718 	if (hw->phy.media_type == e1000_media_type_internal_serdes) {
1719 		int i = 0;
1720 
1721 		hw->mac.serdes_has_link = false;
1722 
1723 		/* On some blade server designs, link establishment
1724 		 * could take as long as 2-3 minutes
1725 		 */
1726 		do {
1727 			hw->mac.ops.check_for_link(hw);
1728 			if (hw->mac.serdes_has_link)
1729 				return *data;
1730 			msleep(20);
1731 		} while (i++ < 3750);
1732 
1733 		*data = 1;
1734 	} else {
1735 		hw->mac.ops.check_for_link(hw);
1736 		if (hw->mac.autoneg)
1737 			/* On some Phy/switch combinations, link establishment
1738 			 * can take a few seconds more than expected.
1739 			 */
1740 			msleep_interruptible(5000);
1741 
1742 		if (!(er32(STATUS) & E1000_STATUS_LU))
1743 			*data = 1;
1744 	}
1745 	return *data;
1746 }
1747 
1748 static int e1000e_get_sset_count(struct net_device __always_unused *netdev,
1749 				 int sset)
1750 {
1751 	switch (sset) {
1752 	case ETH_SS_TEST:
1753 		return E1000_TEST_LEN;
1754 	case ETH_SS_STATS:
1755 		return E1000_STATS_LEN;
1756 	default:
1757 		return -EOPNOTSUPP;
1758 	}
1759 }
1760 
1761 static void e1000_diag_test(struct net_device *netdev,
1762 			    struct ethtool_test *eth_test, u64 *data)
1763 {
1764 	struct e1000_adapter *adapter = netdev_priv(netdev);
1765 	u16 autoneg_advertised;
1766 	u8 forced_speed_duplex;
1767 	u8 autoneg;
1768 	bool if_running = netif_running(netdev);
1769 
1770 	pm_runtime_get_sync(netdev->dev.parent);
1771 
1772 	set_bit(__E1000_TESTING, &adapter->state);
1773 
1774 	if (!if_running) {
1775 		/* Get control of and reset hardware */
1776 		if (adapter->flags & FLAG_HAS_AMT)
1777 			e1000e_get_hw_control(adapter);
1778 
1779 		e1000e_power_up_phy(adapter);
1780 
1781 		adapter->hw.phy.autoneg_wait_to_complete = 1;
1782 		e1000e_reset(adapter);
1783 		adapter->hw.phy.autoneg_wait_to_complete = 0;
1784 	}
1785 
1786 	if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1787 		/* Offline tests */
1788 
1789 		/* save speed, duplex, autoneg settings */
1790 		autoneg_advertised = adapter->hw.phy.autoneg_advertised;
1791 		forced_speed_duplex = adapter->hw.mac.forced_speed_duplex;
1792 		autoneg = adapter->hw.mac.autoneg;
1793 
1794 		e_info("offline testing starting\n");
1795 
1796 		if (if_running)
1797 			/* indicate we're in test mode */
1798 			dev_close(netdev);
1799 
1800 		if (e1000_reg_test(adapter, &data[0]))
1801 			eth_test->flags |= ETH_TEST_FL_FAILED;
1802 
1803 		e1000e_reset(adapter);
1804 		if (e1000_eeprom_test(adapter, &data[1]))
1805 			eth_test->flags |= ETH_TEST_FL_FAILED;
1806 
1807 		e1000e_reset(adapter);
1808 		if (e1000_intr_test(adapter, &data[2]))
1809 			eth_test->flags |= ETH_TEST_FL_FAILED;
1810 
1811 		e1000e_reset(adapter);
1812 		if (e1000_loopback_test(adapter, &data[3]))
1813 			eth_test->flags |= ETH_TEST_FL_FAILED;
1814 
1815 		/* force this routine to wait until autoneg complete/timeout */
1816 		adapter->hw.phy.autoneg_wait_to_complete = 1;
1817 		e1000e_reset(adapter);
1818 		adapter->hw.phy.autoneg_wait_to_complete = 0;
1819 
1820 		if (e1000_link_test(adapter, &data[4]))
1821 			eth_test->flags |= ETH_TEST_FL_FAILED;
1822 
1823 		/* restore speed, duplex, autoneg settings */
1824 		adapter->hw.phy.autoneg_advertised = autoneg_advertised;
1825 		adapter->hw.mac.forced_speed_duplex = forced_speed_duplex;
1826 		adapter->hw.mac.autoneg = autoneg;
1827 		e1000e_reset(adapter);
1828 
1829 		clear_bit(__E1000_TESTING, &adapter->state);
1830 		if (if_running)
1831 			dev_open(netdev);
1832 	} else {
1833 		/* Online tests */
1834 
1835 		e_info("online testing starting\n");
1836 
1837 		/* register, eeprom, intr and loopback tests not run online */
1838 		data[0] = 0;
1839 		data[1] = 0;
1840 		data[2] = 0;
1841 		data[3] = 0;
1842 
1843 		if (e1000_link_test(adapter, &data[4]))
1844 			eth_test->flags |= ETH_TEST_FL_FAILED;
1845 
1846 		clear_bit(__E1000_TESTING, &adapter->state);
1847 	}
1848 
1849 	if (!if_running) {
1850 		e1000e_reset(adapter);
1851 
1852 		if (adapter->flags & FLAG_HAS_AMT)
1853 			e1000e_release_hw_control(adapter);
1854 	}
1855 
1856 	msleep_interruptible(4 * 1000);
1857 
1858 	pm_runtime_put_sync(netdev->dev.parent);
1859 }
1860 
1861 static void e1000_get_wol(struct net_device *netdev,
1862 			  struct ethtool_wolinfo *wol)
1863 {
1864 	struct e1000_adapter *adapter = netdev_priv(netdev);
1865 
1866 	wol->supported = 0;
1867 	wol->wolopts = 0;
1868 
1869 	if (!(adapter->flags & FLAG_HAS_WOL) ||
1870 	    !device_can_wakeup(&adapter->pdev->dev))
1871 		return;
1872 
1873 	wol->supported = WAKE_UCAST | WAKE_MCAST |
1874 	    WAKE_BCAST | WAKE_MAGIC | WAKE_PHY;
1875 
1876 	/* apply any specific unsupported masks here */
1877 	if (adapter->flags & FLAG_NO_WAKE_UCAST) {
1878 		wol->supported &= ~WAKE_UCAST;
1879 
1880 		if (adapter->wol & E1000_WUFC_EX)
1881 			e_err("Interface does not support directed (unicast) frame wake-up packets\n");
1882 	}
1883 
1884 	if (adapter->wol & E1000_WUFC_EX)
1885 		wol->wolopts |= WAKE_UCAST;
1886 	if (adapter->wol & E1000_WUFC_MC)
1887 		wol->wolopts |= WAKE_MCAST;
1888 	if (adapter->wol & E1000_WUFC_BC)
1889 		wol->wolopts |= WAKE_BCAST;
1890 	if (adapter->wol & E1000_WUFC_MAG)
1891 		wol->wolopts |= WAKE_MAGIC;
1892 	if (adapter->wol & E1000_WUFC_LNKC)
1893 		wol->wolopts |= WAKE_PHY;
1894 }
1895 
1896 static int e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1897 {
1898 	struct e1000_adapter *adapter = netdev_priv(netdev);
1899 
1900 	if (!(adapter->flags & FLAG_HAS_WOL) ||
1901 	    !device_can_wakeup(&adapter->pdev->dev) ||
1902 	    (wol->wolopts & ~(WAKE_UCAST | WAKE_MCAST | WAKE_BCAST |
1903 			      WAKE_MAGIC | WAKE_PHY)))
1904 		return -EOPNOTSUPP;
1905 
1906 	/* these settings will always override what we currently have */
1907 	adapter->wol = 0;
1908 
1909 	if (wol->wolopts & WAKE_UCAST)
1910 		adapter->wol |= E1000_WUFC_EX;
1911 	if (wol->wolopts & WAKE_MCAST)
1912 		adapter->wol |= E1000_WUFC_MC;
1913 	if (wol->wolopts & WAKE_BCAST)
1914 		adapter->wol |= E1000_WUFC_BC;
1915 	if (wol->wolopts & WAKE_MAGIC)
1916 		adapter->wol |= E1000_WUFC_MAG;
1917 	if (wol->wolopts & WAKE_PHY)
1918 		adapter->wol |= E1000_WUFC_LNKC;
1919 
1920 	device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
1921 
1922 	return 0;
1923 }
1924 
1925 static int e1000_set_phys_id(struct net_device *netdev,
1926 			     enum ethtool_phys_id_state state)
1927 {
1928 	struct e1000_adapter *adapter = netdev_priv(netdev);
1929 	struct e1000_hw *hw = &adapter->hw;
1930 
1931 	switch (state) {
1932 	case ETHTOOL_ID_ACTIVE:
1933 		pm_runtime_get_sync(netdev->dev.parent);
1934 
1935 		if (!hw->mac.ops.blink_led)
1936 			return 2;	/* cycle on/off twice per second */
1937 
1938 		hw->mac.ops.blink_led(hw);
1939 		break;
1940 
1941 	case ETHTOOL_ID_INACTIVE:
1942 		if (hw->phy.type == e1000_phy_ife)
1943 			e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0);
1944 		hw->mac.ops.led_off(hw);
1945 		hw->mac.ops.cleanup_led(hw);
1946 		pm_runtime_put_sync(netdev->dev.parent);
1947 		break;
1948 
1949 	case ETHTOOL_ID_ON:
1950 		hw->mac.ops.led_on(hw);
1951 		break;
1952 
1953 	case ETHTOOL_ID_OFF:
1954 		hw->mac.ops.led_off(hw);
1955 		break;
1956 	}
1957 
1958 	return 0;
1959 }
1960 
1961 static int e1000_get_coalesce(struct net_device *netdev,
1962 			      struct ethtool_coalesce *ec)
1963 {
1964 	struct e1000_adapter *adapter = netdev_priv(netdev);
1965 
1966 	if (adapter->itr_setting <= 4)
1967 		ec->rx_coalesce_usecs = adapter->itr_setting;
1968 	else
1969 		ec->rx_coalesce_usecs = 1000000 / adapter->itr_setting;
1970 
1971 	return 0;
1972 }
1973 
1974 static int e1000_set_coalesce(struct net_device *netdev,
1975 			      struct ethtool_coalesce *ec)
1976 {
1977 	struct e1000_adapter *adapter = netdev_priv(netdev);
1978 
1979 	if ((ec->rx_coalesce_usecs > E1000_MAX_ITR_USECS) ||
1980 	    ((ec->rx_coalesce_usecs > 4) &&
1981 	     (ec->rx_coalesce_usecs < E1000_MIN_ITR_USECS)) ||
1982 	    (ec->rx_coalesce_usecs == 2))
1983 		return -EINVAL;
1984 
1985 	if (ec->rx_coalesce_usecs == 4) {
1986 		adapter->itr_setting = 4;
1987 		adapter->itr = adapter->itr_setting;
1988 	} else if (ec->rx_coalesce_usecs <= 3) {
1989 		adapter->itr = 20000;
1990 		adapter->itr_setting = ec->rx_coalesce_usecs;
1991 	} else {
1992 		adapter->itr = (1000000 / ec->rx_coalesce_usecs);
1993 		adapter->itr_setting = adapter->itr & ~3;
1994 	}
1995 
1996 	pm_runtime_get_sync(netdev->dev.parent);
1997 
1998 	if (adapter->itr_setting != 0)
1999 		e1000e_write_itr(adapter, adapter->itr);
2000 	else
2001 		e1000e_write_itr(adapter, 0);
2002 
2003 	pm_runtime_put_sync(netdev->dev.parent);
2004 
2005 	return 0;
2006 }
2007 
2008 static int e1000_nway_reset(struct net_device *netdev)
2009 {
2010 	struct e1000_adapter *adapter = netdev_priv(netdev);
2011 
2012 	if (!netif_running(netdev))
2013 		return -EAGAIN;
2014 
2015 	if (!adapter->hw.mac.autoneg)
2016 		return -EINVAL;
2017 
2018 	pm_runtime_get_sync(netdev->dev.parent);
2019 	e1000e_reinit_locked(adapter);
2020 	pm_runtime_put_sync(netdev->dev.parent);
2021 
2022 	return 0;
2023 }
2024 
2025 static void e1000_get_ethtool_stats(struct net_device *netdev,
2026 				    struct ethtool_stats __always_unused *stats,
2027 				    u64 *data)
2028 {
2029 	struct e1000_adapter *adapter = netdev_priv(netdev);
2030 	struct rtnl_link_stats64 net_stats;
2031 	int i;
2032 	char *p = NULL;
2033 
2034 	pm_runtime_get_sync(netdev->dev.parent);
2035 
2036 	e1000e_get_stats64(netdev, &net_stats);
2037 
2038 	pm_runtime_put_sync(netdev->dev.parent);
2039 
2040 	for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
2041 		switch (e1000_gstrings_stats[i].type) {
2042 		case NETDEV_STATS:
2043 			p = (char *)&net_stats +
2044 			    e1000_gstrings_stats[i].stat_offset;
2045 			break;
2046 		case E1000_STATS:
2047 			p = (char *)adapter +
2048 			    e1000_gstrings_stats[i].stat_offset;
2049 			break;
2050 		default:
2051 			data[i] = 0;
2052 			continue;
2053 		}
2054 
2055 		data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
2056 			   sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
2057 	}
2058 }
2059 
2060 static void e1000_get_strings(struct net_device __always_unused *netdev,
2061 			      u32 stringset, u8 *data)
2062 {
2063 	u8 *p = data;
2064 	int i;
2065 
2066 	switch (stringset) {
2067 	case ETH_SS_TEST:
2068 		memcpy(data, e1000_gstrings_test, sizeof(e1000_gstrings_test));
2069 		break;
2070 	case ETH_SS_STATS:
2071 		for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
2072 			memcpy(p, e1000_gstrings_stats[i].stat_string,
2073 			       ETH_GSTRING_LEN);
2074 			p += ETH_GSTRING_LEN;
2075 		}
2076 		break;
2077 	}
2078 }
2079 
2080 static int e1000_get_rxnfc(struct net_device *netdev,
2081 			   struct ethtool_rxnfc *info,
2082 			   u32 __always_unused *rule_locs)
2083 {
2084 	info->data = 0;
2085 
2086 	switch (info->cmd) {
2087 	case ETHTOOL_GRXFH: {
2088 		struct e1000_adapter *adapter = netdev_priv(netdev);
2089 		struct e1000_hw *hw = &adapter->hw;
2090 		u32 mrqc;
2091 
2092 		pm_runtime_get_sync(netdev->dev.parent);
2093 		mrqc = er32(MRQC);
2094 		pm_runtime_put_sync(netdev->dev.parent);
2095 
2096 		if (!(mrqc & E1000_MRQC_RSS_FIELD_MASK))
2097 			return 0;
2098 
2099 		switch (info->flow_type) {
2100 		case TCP_V4_FLOW:
2101 			if (mrqc & E1000_MRQC_RSS_FIELD_IPV4_TCP)
2102 				info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2103 			/* fall through */
2104 		case UDP_V4_FLOW:
2105 		case SCTP_V4_FLOW:
2106 		case AH_ESP_V4_FLOW:
2107 		case IPV4_FLOW:
2108 			if (mrqc & E1000_MRQC_RSS_FIELD_IPV4)
2109 				info->data |= RXH_IP_SRC | RXH_IP_DST;
2110 			break;
2111 		case TCP_V6_FLOW:
2112 			if (mrqc & E1000_MRQC_RSS_FIELD_IPV6_TCP)
2113 				info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2114 			/* fall through */
2115 		case UDP_V6_FLOW:
2116 		case SCTP_V6_FLOW:
2117 		case AH_ESP_V6_FLOW:
2118 		case IPV6_FLOW:
2119 			if (mrqc & E1000_MRQC_RSS_FIELD_IPV6)
2120 				info->data |= RXH_IP_SRC | RXH_IP_DST;
2121 			break;
2122 		default:
2123 			break;
2124 		}
2125 		return 0;
2126 	}
2127 	default:
2128 		return -EOPNOTSUPP;
2129 	}
2130 }
2131 
2132 static int e1000e_get_eee(struct net_device *netdev, struct ethtool_eee *edata)
2133 {
2134 	struct e1000_adapter *adapter = netdev_priv(netdev);
2135 	struct e1000_hw *hw = &adapter->hw;
2136 	u16 cap_addr, lpa_addr, pcs_stat_addr, phy_data;
2137 	u32 ret_val;
2138 
2139 	if (!(adapter->flags2 & FLAG2_HAS_EEE))
2140 		return -EOPNOTSUPP;
2141 
2142 	switch (hw->phy.type) {
2143 	case e1000_phy_82579:
2144 		cap_addr = I82579_EEE_CAPABILITY;
2145 		lpa_addr = I82579_EEE_LP_ABILITY;
2146 		pcs_stat_addr = I82579_EEE_PCS_STATUS;
2147 		break;
2148 	case e1000_phy_i217:
2149 		cap_addr = I217_EEE_CAPABILITY;
2150 		lpa_addr = I217_EEE_LP_ABILITY;
2151 		pcs_stat_addr = I217_EEE_PCS_STATUS;
2152 		break;
2153 	default:
2154 		return -EOPNOTSUPP;
2155 	}
2156 
2157 	pm_runtime_get_sync(netdev->dev.parent);
2158 
2159 	ret_val = hw->phy.ops.acquire(hw);
2160 	if (ret_val) {
2161 		pm_runtime_put_sync(netdev->dev.parent);
2162 		return -EBUSY;
2163 	}
2164 
2165 	/* EEE Capability */
2166 	ret_val = e1000_read_emi_reg_locked(hw, cap_addr, &phy_data);
2167 	if (ret_val)
2168 		goto release;
2169 	edata->supported = mmd_eee_cap_to_ethtool_sup_t(phy_data);
2170 
2171 	/* EEE Advertised */
2172 	edata->advertised = mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert);
2173 
2174 	/* EEE Link Partner Advertised */
2175 	ret_val = e1000_read_emi_reg_locked(hw, lpa_addr, &phy_data);
2176 	if (ret_val)
2177 		goto release;
2178 	edata->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(phy_data);
2179 
2180 	/* EEE PCS Status */
2181 	ret_val = e1000_read_emi_reg_locked(hw, pcs_stat_addr, &phy_data);
2182 	if (ret_val)
2183 		goto release;
2184 	if (hw->phy.type == e1000_phy_82579)
2185 		phy_data <<= 8;
2186 
2187 	/* Result of the EEE auto negotiation - there is no register that
2188 	 * has the status of the EEE negotiation so do a best-guess based
2189 	 * on whether Tx or Rx LPI indications have been received.
2190 	 */
2191 	if (phy_data & (E1000_EEE_TX_LPI_RCVD | E1000_EEE_RX_LPI_RCVD))
2192 		edata->eee_active = true;
2193 
2194 	edata->eee_enabled = !hw->dev_spec.ich8lan.eee_disable;
2195 	edata->tx_lpi_enabled = true;
2196 	edata->tx_lpi_timer = er32(LPIC) >> E1000_LPIC_LPIET_SHIFT;
2197 
2198 release:
2199 	hw->phy.ops.release(hw);
2200 	if (ret_val)
2201 		ret_val = -ENODATA;
2202 
2203 	pm_runtime_put_sync(netdev->dev.parent);
2204 
2205 	return ret_val;
2206 }
2207 
2208 static int e1000e_set_eee(struct net_device *netdev, struct ethtool_eee *edata)
2209 {
2210 	struct e1000_adapter *adapter = netdev_priv(netdev);
2211 	struct e1000_hw *hw = &adapter->hw;
2212 	struct ethtool_eee eee_curr;
2213 	s32 ret_val;
2214 
2215 	ret_val = e1000e_get_eee(netdev, &eee_curr);
2216 	if (ret_val)
2217 		return ret_val;
2218 
2219 	if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) {
2220 		e_err("Setting EEE tx-lpi is not supported\n");
2221 		return -EINVAL;
2222 	}
2223 
2224 	if (eee_curr.tx_lpi_timer != edata->tx_lpi_timer) {
2225 		e_err("Setting EEE Tx LPI timer is not supported\n");
2226 		return -EINVAL;
2227 	}
2228 
2229 	if (edata->advertised & ~(ADVERTISE_100_FULL | ADVERTISE_1000_FULL)) {
2230 		e_err("EEE advertisement supports only 100TX and/or 1000T full-duplex\n");
2231 		return -EINVAL;
2232 	}
2233 
2234 	adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised);
2235 
2236 	hw->dev_spec.ich8lan.eee_disable = !edata->eee_enabled;
2237 
2238 	pm_runtime_get_sync(netdev->dev.parent);
2239 
2240 	/* reset the link */
2241 	if (netif_running(netdev))
2242 		e1000e_reinit_locked(adapter);
2243 	else
2244 		e1000e_reset(adapter);
2245 
2246 	pm_runtime_put_sync(netdev->dev.parent);
2247 
2248 	return 0;
2249 }
2250 
2251 static int e1000e_get_ts_info(struct net_device *netdev,
2252 			      struct ethtool_ts_info *info)
2253 {
2254 	struct e1000_adapter *adapter = netdev_priv(netdev);
2255 
2256 	ethtool_op_get_ts_info(netdev, info);
2257 
2258 	if (!(adapter->flags & FLAG_HAS_HW_TIMESTAMP))
2259 		return 0;
2260 
2261 	info->so_timestamping |= (SOF_TIMESTAMPING_TX_HARDWARE |
2262 				  SOF_TIMESTAMPING_RX_HARDWARE |
2263 				  SOF_TIMESTAMPING_RAW_HARDWARE);
2264 
2265 	info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
2266 
2267 	info->rx_filters = ((1 << HWTSTAMP_FILTER_NONE) |
2268 			    (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
2269 			    (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
2270 			    (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
2271 			    (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) |
2272 			    (1 << HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
2273 			    (1 << HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ) |
2274 			    (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) |
2275 			    (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) |
2276 			    (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
2277 			    (1 << HWTSTAMP_FILTER_ALL));
2278 
2279 	if (adapter->ptp_clock)
2280 		info->phc_index = ptp_clock_index(adapter->ptp_clock);
2281 
2282 	return 0;
2283 }
2284 
2285 static const struct ethtool_ops e1000_ethtool_ops = {
2286 	.get_settings		= e1000_get_settings,
2287 	.set_settings		= e1000_set_settings,
2288 	.get_drvinfo		= e1000_get_drvinfo,
2289 	.get_regs_len		= e1000_get_regs_len,
2290 	.get_regs		= e1000_get_regs,
2291 	.get_wol		= e1000_get_wol,
2292 	.set_wol		= e1000_set_wol,
2293 	.get_msglevel		= e1000_get_msglevel,
2294 	.set_msglevel		= e1000_set_msglevel,
2295 	.nway_reset		= e1000_nway_reset,
2296 	.get_link		= ethtool_op_get_link,
2297 	.get_eeprom_len		= e1000_get_eeprom_len,
2298 	.get_eeprom		= e1000_get_eeprom,
2299 	.set_eeprom		= e1000_set_eeprom,
2300 	.get_ringparam		= e1000_get_ringparam,
2301 	.set_ringparam		= e1000_set_ringparam,
2302 	.get_pauseparam		= e1000_get_pauseparam,
2303 	.set_pauseparam		= e1000_set_pauseparam,
2304 	.self_test		= e1000_diag_test,
2305 	.get_strings		= e1000_get_strings,
2306 	.set_phys_id		= e1000_set_phys_id,
2307 	.get_ethtool_stats	= e1000_get_ethtool_stats,
2308 	.get_sset_count		= e1000e_get_sset_count,
2309 	.get_coalesce		= e1000_get_coalesce,
2310 	.set_coalesce		= e1000_set_coalesce,
2311 	.get_rxnfc		= e1000_get_rxnfc,
2312 	.get_ts_info		= e1000e_get_ts_info,
2313 	.get_eee		= e1000e_get_eee,
2314 	.set_eee		= e1000e_set_eee,
2315 };
2316 
2317 void e1000e_set_ethtool_ops(struct net_device *netdev)
2318 {
2319 	netdev->ethtool_ops = &e1000_ethtool_ops;
2320 }
2321