summaryrefslogtreecommitdiffstats
path: root/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c
blob: adaa0024adfed596b87c47ec08d9be94f1d0edb0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
/*
 * Copyright (C) 1999 - 2010 Intel Corporation.
 * Copyright (C) 2010 OKI SEMICONDUCTOR Co., LTD.
 *
 * This code was derived from the Intel e1000e Linux driver.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 */
#include "pch_gbe.h"
#include "pch_gbe_phy.h"

/**
 * pch_gbe_stats - Stats item information
 */
struct pch_gbe_stats {
	char string[ETH_GSTRING_LEN];
	size_t size;
	size_t offset;
};

#define PCH_GBE_STAT(m)						\
{								\
	.string = #m,						\
	.size = FIELD_SIZEOF(struct pch_gbe_hw_stats, m),	\
	.offset = offsetof(struct pch_gbe_hw_stats, m),		\
}

/**
 * pch_gbe_gstrings_stats - ethtool information status name list
 */
static const struct pch_gbe_stats pch_gbe_gstrings_stats[] = {
	PCH_GBE_STAT(rx_packets),
	PCH_GBE_STAT(tx_packets),
	PCH_GBE_STAT(rx_bytes),
	PCH_GBE_STAT(tx_bytes),
	PCH_GBE_STAT(rx_errors),
	PCH_GBE_STAT(tx_errors),
	PCH_GBE_STAT(rx_dropped),
	PCH_GBE_STAT(tx_dropped),
	PCH_GBE_STAT(multicast),
	PCH_GBE_STAT(collisions),
	PCH_GBE_STAT(rx_crc_errors),
	PCH_GBE_STAT(rx_frame_errors),
	PCH_GBE_STAT(rx_alloc_buff_failed),
	PCH_GBE_STAT(tx_length_errors),
	PCH_GBE_STAT(tx_aborted_errors),
	PCH_GBE_STAT(tx_carrier_errors),
	PCH_GBE_STAT(tx_timeout_count),
	PCH_GBE_STAT(tx_restart_count),
	PCH_GBE_STAT(intr_rx_dsc_empty_count),
	PCH_GBE_STAT(intr_rx_frame_err_count),
	PCH_GBE_STAT(intr_rx_fifo_err_count),
	PCH_GBE_STAT(intr_rx_dma_err_count),
	PCH_GBE_STAT(intr_tx_fifo_err_count),
	PCH_GBE_STAT(intr_tx_dma_err_count),
	PCH_GBE_STAT(intr_tcpip_err_count)
};

#define PCH_GBE_QUEUE_STATS_LEN 0
#define PCH_GBE_GLOBAL_STATS_LEN	ARRAY_SIZE(pch_gbe_gstrings_stats)
#define PCH_GBE_STATS_LEN (PCH_GBE_GLOBAL_STATS_LEN + PCH_GBE_QUEUE_STATS_LEN)

#define PCH_GBE_MAC_REGS_LEN    (sizeof(struct pch_gbe_regs) / 4)
#define PCH_GBE_REGS_LEN        (PCH_GBE_MAC_REGS_LEN + PCH_GBE_PHY_REGS_LEN)
/**
 * pch_gbe_get_link_ksettings - Get device-specific settings
 * @netdev: Network interface device structure
 * @ecmd:   Ethtool command
 * Returns:
 *	0:			Successful.
 *	Negative value:		Failed.
 */
static int pch_gbe_get_link_ksettings(struct net_device *netdev,
				      struct ethtool_link_ksettings *ecmd)
{
	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
	u32 supported, advertising;

	mii_ethtool_get_link_ksettings(&adapter->mii, ecmd);

	ethtool_convert_link_mode_to_legacy_u32(&supported,
						ecmd->link_modes.supported);
	ethtool_convert_link_mode_to_legacy_u32(&advertising,
						ecmd->link_modes.advertising);

	supported &= ~(SUPPORTED_TP | SUPPORTED_1000baseT_Half);
	advertising &= ~(ADVERTISED_TP | ADVERTISED_1000baseT_Half);

	ethtool_convert_legacy_u32_to_link_mode(ecmd->link_modes.supported,
						supported);
	ethtool_convert_legacy_u32_to_link_mode(ecmd->link_modes.advertising,
						advertising);

	if (!netif_carrier_ok(adapter->netdev))
		ecmd->base.speed = SPEED_UNKNOWN;

	return 0;
}

/**
 * pch_gbe_set_link_ksettings - Set device-specific settings
 * @netdev: Network interface device structure
 * @ecmd:   Ethtool command
 * Returns:
 *	0:			Successful.
 *	Negative value:		Failed.
 */
static int pch_gbe_set_link_ksettings(struct net_device *netdev,
				      const struct ethtool_link_ksettings *ecmd)
{
	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
	struct pch_gbe_hw *hw = &adapter->hw;
	struct ethtool_link_ksettings copy_ecmd;
	u32 speed = ecmd->base.speed;
	u32 advertising;
	int ret;

	pch_gbe_phy_write_reg_miic(hw, MII_BMCR, BMCR_RESET);

	memcpy(&copy_ecmd, ecmd, sizeof(*ecmd));

	/* when set_settings() is called with a ethtool_cmd previously
	 * filled by get_settings() on a down link, speed is -1: */
	if (speed == UINT_MAX) {
		speed = SPEED_1000;
		copy_ecmd.base.speed = speed;
		copy_ecmd.base.duplex = DUPLEX_FULL;
	}
	ret = mii_ethtool_set_link_ksettings(&adapter->mii, &copy_ecmd);
	if (ret) {
		netdev_err(netdev, "Error: mii_ethtool_set_link_ksettings\n");
		return ret;
	}
	hw->mac.link_speed = speed;
	hw->mac.link_duplex = copy_ecmd.base.duplex;
	ethtool_convert_link_mode_to_legacy_u32(
		&advertising, copy_ecmd.link_modes.advertising);
	hw->phy.autoneg_advertised = advertising;
	hw->mac.autoneg = copy_ecmd.base.autoneg;

	/* reset the link */
	if (netif_running(adapter->netdev)) {
		pch_gbe_down(adapter);
		ret = pch_gbe_up(adapter);
	} else {
		pch_gbe_reset(adapter);
	}
	return ret;
}

/**
 * pch_gbe_get_regs_len - Report the size of device registers
 * @netdev: Network interface device structure
 * Returns: the size of device registers.
 */
static int pch_gbe_get_regs_len(struct net_device *netdev)
{
	return PCH_GBE_REGS_LEN * (int)sizeof(u32);
}

/**
 * pch_gbe_get_drvinfo - Report driver information
 * @netdev:  Network interface device structure
 * @drvinfo: Driver information structure
 */
static void pch_gbe_get_drvinfo(struct net_device *netdev,
				 struct ethtool_drvinfo *drvinfo)
{
	struct pch_gbe_adapter *adapter = netdev_priv(netdev);

	strlcpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
	strlcpy(drvinfo->version, pch_driver_version, sizeof(drvinfo->version));
	strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
		sizeof(drvinfo->bus_info));
}

/**
 * pch_gbe_get_regs - Get device registers
 * @netdev: Network interface device structure
 * @regs:   Ethtool register structure
 * @p:      Buffer pointer of read device register date
 */
static void pch_gbe_get_regs(struct net_device *netdev,
				struct ethtool_regs *regs, void *p)
{
	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
	struct pch_gbe_hw *hw = &adapter->hw;
	struct pci_dev *pdev = adapter->pdev;
	u32 *regs_buff = p;
	u16 i, tmp;

	regs->version = 0x1000000 | (__u32)pdev->revision << 16 | pdev->device;
	for (i = 0; i < PCH_GBE_MAC_REGS_LEN; i++)
		*regs_buff++ = ioread32(&hw->reg->INT_ST + i);
	/* PHY register */
	for (i = 0; i < PCH_GBE_PHY_REGS_LEN; i++) {
		pch_gbe_phy_read_reg_miic(&adapter->hw, i, &tmp);
		*regs_buff++ = tmp;
	}
}

/**
 * pch_gbe_get_wol - Report whether Wake-on-Lan is enabled
 * @netdev: Network interface device structure
 * @wol:    Wake-on-Lan information
 */
static void pch_gbe_get_wol(struct net_device *netdev,
				struct ethtool_wolinfo *wol)
{
	struct pch_gbe_adapter *adapter = netdev_priv(netdev);

	wol->supported = WAKE_UCAST | WAKE_MCAST | WAKE_BCAST | WAKE_MAGIC;
	wol->wolopts = 0;

	if ((adapter->wake_up_evt & PCH_GBE_WLC_IND))
		wol->wolopts |= WAKE_UCAST;
	if ((adapter->wake_up_evt & PCH_GBE_WLC_MLT))
		wol->wolopts |= WAKE_MCAST;
	if ((adapter->wake_up_evt & PCH_GBE_WLC_BR))
		wol->wolopts |= WAKE_BCAST;
	if ((adapter->wake_up_evt & PCH_GBE_WLC_MP))
		wol->wolopts |= WAKE_MAGIC;
}

/**
 * pch_gbe_set_wol - Turn Wake-on-Lan on or off
 * @netdev: Network interface device structure
 * @wol:    Pointer of wake-on-Lan information straucture
 * Returns:
 *	0:			Successful.
 *	Negative value:		Failed.
 */
static int pch_gbe_set_wol(struct net_device *netdev,
				struct ethtool_wolinfo *wol)
{
	struct pch_gbe_adapter *adapter = netdev_priv(netdev);

	if ((wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE)))
		return -EOPNOTSUPP;
	/* these settings will always override what we currently have */
	adapter->wake_up_evt = 0;

	if ((wol->wolopts & WAKE_UCAST))
		adapter->wake_up_evt |= PCH_GBE_WLC_IND;
	if ((wol->wolopts & WAKE_MCAST))
		adapter->wake_up_evt |= PCH_GBE_WLC_MLT;
	if ((wol->wolopts & WAKE_BCAST))
		adapter->wake_up_evt |= PCH_GBE_WLC_BR;
	if ((wol->wolopts & WAKE_MAGIC))
		adapter->wake_up_evt |= PCH_GBE_WLC_MP;
	return 0;
}

/**
 * pch_gbe_nway_reset - Restart autonegotiation
 * @netdev: Network interface device structure
 * Returns:
 *	0:			Successful.
 *	Negative value:		Failed.
 */
static int pch_gbe_nway_reset(struct net_device *netdev)
{
	struct pch_gbe_adapter *adapter = netdev_priv(netdev);

	return mii_nway_restart(&adapter->mii);
}

/**
 * pch_gbe_get_ringparam - Report ring sizes
 * @netdev:  Network interface device structure
 * @ring:    Ring param structure
 */
static void pch_gbe_get_ringparam(struct net_device *netdev,
					struct ethtool_ringparam *ring)
{
	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
	struct pch_gbe_tx_ring *txdr = adapter->tx_ring;
	struct pch_gbe_rx_ring *rxdr = adapter->rx_ring;

	ring->rx_max_pending = PCH_GBE_MAX_RXD;
	ring->tx_max_pending = PCH_GBE_MAX_TXD;
	ring->rx_pending = rxdr->count;
	ring->tx_pending = txdr->count;
}

/**
 * pch_gbe_set_ringparam - Set ring sizes
 * @netdev:  Network interface device structure
 * @ring:    Ring param structure
 * Returns
 *	0:			Successful.
 *	Negative value:		Failed.
 */
static int pch_gbe_set_ringparam(struct net_device *netdev,
					struct ethtool_ringparam *ring)
{
	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
	struct pch_gbe_tx_ring *txdr, *tx_old;
	struct pch_gbe_rx_ring *rxdr, *rx_old;
	int tx_ring_size, rx_ring_size;
	int err = 0;

	if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
		return -EINVAL;
	tx_ring_size = (int)sizeof(struct pch_gbe_tx_ring);
	rx_ring_size = (int)sizeof(struct pch_gbe_rx_ring);

	if ((netif_running(adapter->netdev)))
		pch_gbe_down(adapter);
	tx_old = adapter->tx_ring;
	rx_old = adapter->rx_ring;

	txdr = kzalloc(tx_ring_size, GFP_KERNEL);
	if (!txdr) {
		err = -ENOMEM;
		goto err_alloc_tx;
	}
	rxdr = kzalloc(rx_ring_size, GFP_KERNEL);
	if (!rxdr) {
		err = -ENOMEM;
		goto err_alloc_rx;
	}
	adapter->tx_ring = txdr;
	adapter->rx_ring = rxdr;

	rxdr->count =
		clamp_val(ring->rx_pending, PCH_GBE_MIN_RXD, PCH_GBE_MAX_RXD);
	rxdr->count = roundup(rxdr->count, PCH_GBE_RX_DESC_MULTIPLE);

	txdr->count =
		clamp_val(ring->tx_pending, PCH_GBE_MIN_RXD, PCH_GBE_MAX_RXD);
	txdr->count = roundup(txdr->count, PCH_GBE_TX_DESC_MULTIPLE);

	if ((netif_running(adapter->netdev))) {
		/* Try to get new resources before deleting old */
		err = pch_gbe_setup_rx_resources(adapter, adapter->rx_ring);
		if (err)
			goto err_setup_rx;
		err = pch_gbe_setup_tx_resources(adapter, adapter->tx_ring);
		if (err)
			goto err_setup_tx;
		pch_gbe_free_rx_resources(adapter, rx_old);
		pch_gbe_free_tx_resources(adapter, tx_old);
		kfree(tx_old);
		kfree(rx_old);
		adapter->rx_ring = rxdr;
		adapter->tx_ring = txdr;
		err = pch_gbe_up(adapter);
	}
	return err;

err_setup_tx:
	pch_gbe_free_rx_resources(adapter, adapter->rx_ring);
err_setup_rx:
	adapter->rx_ring = rx_old;
	adapter->tx_ring = tx_old;
	kfree(rxdr);
err_alloc_rx:
	kfree(txdr);
err_alloc_tx:
	if (netif_running(adapter->netdev))
		pch_gbe_up(adapter);
	return err;
}

/**
 * pch_gbe_get_pauseparam - Report pause parameters
 * @netdev:  Network interface device structure
 * @pause:   Pause parameters structure
 */
static void pch_gbe_get_pauseparam(struct net_device *netdev,
				       struct ethtool_pauseparam *pause)
{
	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
	struct pch_gbe_hw *hw = &adapter->hw;

	pause->autoneg =
	    ((hw->mac.fc_autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE);

	if (hw->mac.fc == PCH_GBE_FC_RX_PAUSE) {
		pause->rx_pause = 1;
	} else if (hw->mac.fc == PCH_GBE_FC_TX_PAUSE) {
		pause->tx_pause = 1;
	} else if (hw->mac.fc == PCH_GBE_FC_FULL) {
		pause->rx_pause = 1;
		pause->tx_pause = 1;
	}
}

/**
 * pch_gbe_set_pauseparam - Set pause parameters
 * @netdev:  Network interface device structure
 * @pause:   Pause parameters structure
 * Returns:
 *	0:			Successful.
 *	Negative value:		Failed.
 */
static int pch_gbe_set_pauseparam(struct net_device *netdev,
				       struct ethtool_pauseparam *pause)
{
	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
	struct pch_gbe_hw *hw = &adapter->hw;
	int ret = 0;

	hw->mac.fc_autoneg = pause->autoneg;
	if ((pause->rx_pause) && (pause->tx_pause))
		hw->mac.fc = PCH_GBE_FC_FULL;
	else if ((pause->rx_pause) && (!pause->tx_pause))
		hw->mac.fc = PCH_GBE_FC_RX_PAUSE;
	else if ((!pause->rx_pause) && (pause->tx_pause))
		hw->mac.fc = PCH_GBE_FC_TX_PAUSE;
	else if ((!pause->rx_pause) && (!pause->tx_pause))
		hw->mac.fc = PCH_GBE_FC_NONE;

	if (hw->mac.fc_autoneg == AUTONEG_ENABLE) {
		if ((netif_running(adapter->netdev))) {
			pch_gbe_down(adapter);
			ret = pch_gbe_up(adapter);
		} else {
			pch_gbe_reset(adapter);
		}
	} else {
		ret = pch_gbe_mac_force_mac_fc(hw);
	}
	return ret;
}

/**
 * pch_gbe_get_strings - Return a set of strings that describe the requested
 *			 objects
 * @netdev:    Network interface device structure
 * @stringset: Select the stringset. [ETH_SS_TEST] [ETH_SS_STATS]
 * @data:      Pointer of read string data.
 */
static void pch_gbe_get_strings(struct net_device *netdev, u32 stringset,
					u8 *data)
{
	u8 *p = data;
	int i;

	switch (stringset) {
	case (u32) ETH_SS_STATS:
		for (i = 0; i < PCH_GBE_GLOBAL_STATS_LEN; i++) {
			memcpy(p, pch_gbe_gstrings_stats[i].string,
			       ETH_GSTRING_LEN);
			p += ETH_GSTRING_LEN;
		}
		break;
	}
}

/**
 * pch_gbe_get_ethtool_stats - Return statistics about the device
 * @netdev: Network interface device structure
 * @stats:  Ethtool statue structure
 * @data:   Pointer of read status area
 */
static void pch_gbe_get_ethtool_stats(struct net_device *netdev,
				  struct ethtool_stats *stats, u64 *data)
{
	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
	int i;
	const struct pch_gbe_stats *gstats = pch_gbe_gstrings_stats;
	char *hw_stats = (char *)&adapter->stats;

	pch_gbe_update_stats(adapter);
	for (i = 0; i < PCH_GBE_GLOBAL_STATS_LEN; i++) {
		char *p = hw_stats + gstats->offset;
		data[i] = gstats->size == sizeof(u64) ? *(u64 *)p:(*(u32 *)p);
		gstats++;
	}
}

static int pch_gbe_get_sset_count(struct net_device *netdev, int sset)
{
	switch (sset) {
	case ETH_SS_STATS:
		return PCH_GBE_STATS_LEN;
	default:
		return -EOPNOTSUPP;
	}
}

static const struct ethtool_ops pch_gbe_ethtool_ops = {
	.get_drvinfo = pch_gbe_get_drvinfo,
	.get_regs_len = pch_gbe_get_regs_len,
	.get_regs = pch_gbe_get_regs,
	.get_wol = pch_gbe_get_wol,
	.set_wol = pch_gbe_set_wol,
	.nway_reset = pch_gbe_nway_reset,
	.get_link = ethtool_op_get_link,
	.get_ringparam = pch_gbe_get_ringparam,
	.set_ringparam = pch_gbe_set_ringparam,
	.get_pauseparam = pch_gbe_get_pauseparam,
	.set_pauseparam = pch_gbe_set_pauseparam,
	.get_strings = pch_gbe_get_strings,
	.get_ethtool_stats = pch_gbe_get_ethtool_stats,
	.get_sset_count = pch_gbe_get_sset_count,
	.get_link_ksettings = pch_gbe_get_link_ksettings,
	.set_link_ksettings = pch_gbe_set_link_ksettings,
};

void pch_gbe_set_ethtool_ops(struct net_device *netdev)
{
	netdev->ethtool_ops = &pch_gbe_ethtool_ops;
}