ethernet: Fix FSF address in file headers
[deliverable/linux.git] / drivers / net / ethernet / oki-semi / pch_gbe / pch_gbe_ethtool.c
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1/*
2 * Copyright (C) 1999 - 2010 Intel Corporation.
3 * Copyright (C) 2010 OKI SEMICONDUCTOR Co., LTD.
4 *
5 * This code was derived from the Intel e1000e Linux driver.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; version 2 of the License.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
0ab75ae8 17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
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18 */
19#include "pch_gbe.h"
20#include "pch_gbe_api.h"
21
22/**
25985edc 23 * pch_gbe_stats - Stats item information
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24 */
25struct pch_gbe_stats {
26 char string[ETH_GSTRING_LEN];
27 size_t size;
28 size_t offset;
29};
30
31#define PCH_GBE_STAT(m) \
32{ \
33 .string = #m, \
34 .size = FIELD_SIZEOF(struct pch_gbe_hw_stats, m), \
35 .offset = offsetof(struct pch_gbe_hw_stats, m), \
36}
37
38/**
39 * pch_gbe_gstrings_stats - ethtool information status name list
40 */
41static const struct pch_gbe_stats pch_gbe_gstrings_stats[] = {
42 PCH_GBE_STAT(rx_packets),
43 PCH_GBE_STAT(tx_packets),
44 PCH_GBE_STAT(rx_bytes),
45 PCH_GBE_STAT(tx_bytes),
46 PCH_GBE_STAT(rx_errors),
47 PCH_GBE_STAT(tx_errors),
48 PCH_GBE_STAT(rx_dropped),
49 PCH_GBE_STAT(tx_dropped),
50 PCH_GBE_STAT(multicast),
51 PCH_GBE_STAT(collisions),
52 PCH_GBE_STAT(rx_crc_errors),
53 PCH_GBE_STAT(rx_frame_errors),
54 PCH_GBE_STAT(rx_alloc_buff_failed),
55 PCH_GBE_STAT(tx_length_errors),
56 PCH_GBE_STAT(tx_aborted_errors),
57 PCH_GBE_STAT(tx_carrier_errors),
58 PCH_GBE_STAT(tx_timeout_count),
59 PCH_GBE_STAT(tx_restart_count),
60 PCH_GBE_STAT(intr_rx_dsc_empty_count),
61 PCH_GBE_STAT(intr_rx_frame_err_count),
62 PCH_GBE_STAT(intr_rx_fifo_err_count),
63 PCH_GBE_STAT(intr_rx_dma_err_count),
64 PCH_GBE_STAT(intr_tx_fifo_err_count),
65 PCH_GBE_STAT(intr_tx_dma_err_count),
66 PCH_GBE_STAT(intr_tcpip_err_count)
67};
68
69#define PCH_GBE_QUEUE_STATS_LEN 0
70#define PCH_GBE_GLOBAL_STATS_LEN ARRAY_SIZE(pch_gbe_gstrings_stats)
71#define PCH_GBE_STATS_LEN (PCH_GBE_GLOBAL_STATS_LEN + PCH_GBE_QUEUE_STATS_LEN)
72
73#define PCH_GBE_MAC_REGS_LEN (sizeof(struct pch_gbe_regs) / 4)
74#define PCH_GBE_REGS_LEN (PCH_GBE_MAC_REGS_LEN + PCH_GBE_PHY_REGS_LEN)
75/**
76 * pch_gbe_get_settings - Get device-specific settings
77 * @netdev: Network interface device structure
78 * @ecmd: Ethtool command
49ce9c2c 79 * Returns:
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80 * 0: Successful.
81 * Negative value: Failed.
82 */
83static int pch_gbe_get_settings(struct net_device *netdev,
84 struct ethtool_cmd *ecmd)
85{
86 struct pch_gbe_adapter *adapter = netdev_priv(netdev);
87 int ret;
88
89 ret = mii_ethtool_gset(&adapter->mii, ecmd);
90 ecmd->supported &= ~(SUPPORTED_TP | SUPPORTED_1000baseT_Half);
91 ecmd->advertising &= ~(ADVERTISED_TP | ADVERTISED_1000baseT_Half);
92
93 if (!netif_carrier_ok(adapter->netdev))
25db0338 94 ethtool_cmd_speed_set(ecmd, -1);
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95 return ret;
96}
97
98/**
99 * pch_gbe_set_settings - Set device-specific settings
100 * @netdev: Network interface device structure
101 * @ecmd: Ethtool command
49ce9c2c 102 * Returns:
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103 * 0: Successful.
104 * Negative value: Failed.
105 */
106static int pch_gbe_set_settings(struct net_device *netdev,
107 struct ethtool_cmd *ecmd)
108{
109 struct pch_gbe_adapter *adapter = netdev_priv(netdev);
110 struct pch_gbe_hw *hw = &adapter->hw;
25db0338 111 u32 speed = ethtool_cmd_speed(ecmd);
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112 int ret;
113
114 pch_gbe_hal_write_phy_reg(hw, MII_BMCR, BMCR_RESET);
115
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116 /* when set_settings() is called with a ethtool_cmd previously
117 * filled by get_settings() on a down link, speed is -1: */
118 if (speed == UINT_MAX) {
119 speed = SPEED_1000;
c196ce05 120 ethtool_cmd_speed_set(ecmd, speed);
77555ee7 121 ecmd->duplex = DUPLEX_FULL;
89980827 122 }
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123 ret = mii_ethtool_sset(&adapter->mii, ecmd);
124 if (ret) {
453ca931 125 netdev_err(netdev, "Error: mii_ethtool_sset\n");
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126 return ret;
127 }
25db0338 128 hw->mac.link_speed = speed;
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129 hw->mac.link_duplex = ecmd->duplex;
130 hw->phy.autoneg_advertised = ecmd->advertising;
131 hw->mac.autoneg = ecmd->autoneg;
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132
133 /* reset the link */
134 if (netif_running(adapter->netdev)) {
135 pch_gbe_down(adapter);
136 ret = pch_gbe_up(adapter);
137 } else {
138 pch_gbe_reset(adapter);
139 }
140 return ret;
141}
142
143/**
144 * pch_gbe_get_regs_len - Report the size of device registers
145 * @netdev: Network interface device structure
146 * Returns: the size of device registers.
147 */
148static int pch_gbe_get_regs_len(struct net_device *netdev)
149{
150 return PCH_GBE_REGS_LEN * (int)sizeof(u32);
151}
152
153/**
154 * pch_gbe_get_drvinfo - Report driver information
155 * @netdev: Network interface device structure
156 * @drvinfo: Driver information structure
157 */
158static void pch_gbe_get_drvinfo(struct net_device *netdev,
159 struct ethtool_drvinfo *drvinfo)
160{
161 struct pch_gbe_adapter *adapter = netdev_priv(netdev);
162
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163 strlcpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
164 strlcpy(drvinfo->version, pch_driver_version, sizeof(drvinfo->version));
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165 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
166 sizeof(drvinfo->bus_info));
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167 drvinfo->regdump_len = pch_gbe_get_regs_len(netdev);
168}
169
170/**
171 * pch_gbe_get_regs - Get device registers
172 * @netdev: Network interface device structure
173 * @regs: Ethtool register structure
174 * @p: Buffer pointer of read device register date
175 */
176static void pch_gbe_get_regs(struct net_device *netdev,
177 struct ethtool_regs *regs, void *p)
178{
179 struct pch_gbe_adapter *adapter = netdev_priv(netdev);
180 struct pch_gbe_hw *hw = &adapter->hw;
181 struct pci_dev *pdev = adapter->pdev;
182 u32 *regs_buff = p;
183 u16 i, tmp;
184
185 regs->version = 0x1000000 | (__u32)pdev->revision << 16 | pdev->device;
186 for (i = 0; i < PCH_GBE_MAC_REGS_LEN; i++)
187 *regs_buff++ = ioread32(&hw->reg->INT_ST + i);
188 /* PHY register */
189 for (i = 0; i < PCH_GBE_PHY_REGS_LEN; i++) {
190 pch_gbe_hal_read_phy_reg(&adapter->hw, i, &tmp);
191 *regs_buff++ = tmp;
192 }
193}
194
195/**
196 * pch_gbe_get_wol - Report whether Wake-on-Lan is enabled
197 * @netdev: Network interface device structure
198 * @wol: Wake-on-Lan information
199 */
200static void pch_gbe_get_wol(struct net_device *netdev,
201 struct ethtool_wolinfo *wol)
202{
203 struct pch_gbe_adapter *adapter = netdev_priv(netdev);
204
205 wol->supported = WAKE_UCAST | WAKE_MCAST | WAKE_BCAST | WAKE_MAGIC;
206 wol->wolopts = 0;
207
208 if ((adapter->wake_up_evt & PCH_GBE_WLC_IND))
209 wol->wolopts |= WAKE_UCAST;
210 if ((adapter->wake_up_evt & PCH_GBE_WLC_MLT))
211 wol->wolopts |= WAKE_MCAST;
212 if ((adapter->wake_up_evt & PCH_GBE_WLC_BR))
213 wol->wolopts |= WAKE_BCAST;
214 if ((adapter->wake_up_evt & PCH_GBE_WLC_MP))
215 wol->wolopts |= WAKE_MAGIC;
216}
217
218/**
219 * pch_gbe_set_wol - Turn Wake-on-Lan on or off
220 * @netdev: Network interface device structure
221 * @wol: Pointer of wake-on-Lan information straucture
49ce9c2c 222 * Returns:
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223 * 0: Successful.
224 * Negative value: Failed.
225 */
226static int pch_gbe_set_wol(struct net_device *netdev,
227 struct ethtool_wolinfo *wol)
228{
229 struct pch_gbe_adapter *adapter = netdev_priv(netdev);
230
231 if ((wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE)))
232 return -EOPNOTSUPP;
233 /* these settings will always override what we currently have */
234 adapter->wake_up_evt = 0;
235
236 if ((wol->wolopts & WAKE_UCAST))
237 adapter->wake_up_evt |= PCH_GBE_WLC_IND;
238 if ((wol->wolopts & WAKE_MCAST))
239 adapter->wake_up_evt |= PCH_GBE_WLC_MLT;
240 if ((wol->wolopts & WAKE_BCAST))
241 adapter->wake_up_evt |= PCH_GBE_WLC_BR;
242 if ((wol->wolopts & WAKE_MAGIC))
243 adapter->wake_up_evt |= PCH_GBE_WLC_MP;
244 return 0;
245}
246
247/**
248 * pch_gbe_nway_reset - Restart autonegotiation
249 * @netdev: Network interface device structure
49ce9c2c 250 * Returns:
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251 * 0: Successful.
252 * Negative value: Failed.
253 */
254static int pch_gbe_nway_reset(struct net_device *netdev)
255{
256 struct pch_gbe_adapter *adapter = netdev_priv(netdev);
257
258 return mii_nway_restart(&adapter->mii);
259}
260
261/**
262 * pch_gbe_get_ringparam - Report ring sizes
263 * @netdev: Network interface device structure
264 * @ring: Ring param structure
265 */
266static void pch_gbe_get_ringparam(struct net_device *netdev,
267 struct ethtool_ringparam *ring)
268{
269 struct pch_gbe_adapter *adapter = netdev_priv(netdev);
270 struct pch_gbe_tx_ring *txdr = adapter->tx_ring;
271 struct pch_gbe_rx_ring *rxdr = adapter->rx_ring;
272
273 ring->rx_max_pending = PCH_GBE_MAX_RXD;
274 ring->tx_max_pending = PCH_GBE_MAX_TXD;
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275 ring->rx_pending = rxdr->count;
276 ring->tx_pending = txdr->count;
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277}
278
279/**
280 * pch_gbe_set_ringparam - Set ring sizes
281 * @netdev: Network interface device structure
282 * @ring: Ring param structure
283 * Returns
284 * 0: Successful.
285 * Negative value: Failed.
286 */
287static int pch_gbe_set_ringparam(struct net_device *netdev,
288 struct ethtool_ringparam *ring)
289{
290 struct pch_gbe_adapter *adapter = netdev_priv(netdev);
291 struct pch_gbe_tx_ring *txdr, *tx_old;
292 struct pch_gbe_rx_ring *rxdr, *rx_old;
293 int tx_ring_size, rx_ring_size;
294 int err = 0;
295
296 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
297 return -EINVAL;
298 tx_ring_size = (int)sizeof(struct pch_gbe_tx_ring);
299 rx_ring_size = (int)sizeof(struct pch_gbe_rx_ring);
300
301 if ((netif_running(adapter->netdev)))
302 pch_gbe_down(adapter);
303 tx_old = adapter->tx_ring;
304 rx_old = adapter->rx_ring;
305
306 txdr = kzalloc(tx_ring_size, GFP_KERNEL);
307 if (!txdr) {
308 err = -ENOMEM;
309 goto err_alloc_tx;
310 }
311 rxdr = kzalloc(rx_ring_size, GFP_KERNEL);
312 if (!rxdr) {
313 err = -ENOMEM;
314 goto err_alloc_rx;
315 }
316 adapter->tx_ring = txdr;
317 adapter->rx_ring = rxdr;
318
319 rxdr->count =
320 clamp_val(ring->rx_pending, PCH_GBE_MIN_RXD, PCH_GBE_MAX_RXD);
321 rxdr->count = roundup(rxdr->count, PCH_GBE_RX_DESC_MULTIPLE);
322
323 txdr->count =
324 clamp_val(ring->tx_pending, PCH_GBE_MIN_RXD, PCH_GBE_MAX_RXD);
325 txdr->count = roundup(txdr->count, PCH_GBE_TX_DESC_MULTIPLE);
326
327 if ((netif_running(adapter->netdev))) {
328 /* Try to get new resources before deleting old */
329 err = pch_gbe_setup_rx_resources(adapter, adapter->rx_ring);
330 if (err)
331 goto err_setup_rx;
332 err = pch_gbe_setup_tx_resources(adapter, adapter->tx_ring);
333 if (err)
334 goto err_setup_tx;
335 /* save the new, restore the old in order to free it,
336 * then restore the new back again */
337#ifdef RINGFREE
338 adapter->rx_ring = rx_old;
339 adapter->tx_ring = tx_old;
340 pch_gbe_free_rx_resources(adapter, adapter->rx_ring);
341 pch_gbe_free_tx_resources(adapter, adapter->tx_ring);
342 kfree(tx_old);
343 kfree(rx_old);
344 adapter->rx_ring = rxdr;
345 adapter->tx_ring = txdr;
346#else
347 pch_gbe_free_rx_resources(adapter, rx_old);
348 pch_gbe_free_tx_resources(adapter, tx_old);
349 kfree(tx_old);
350 kfree(rx_old);
351 adapter->rx_ring = rxdr;
352 adapter->tx_ring = txdr;
353#endif
354 err = pch_gbe_up(adapter);
355 }
356 return err;
357
358err_setup_tx:
359 pch_gbe_free_rx_resources(adapter, adapter->rx_ring);
360err_setup_rx:
361 adapter->rx_ring = rx_old;
362 adapter->tx_ring = tx_old;
363 kfree(rxdr);
364err_alloc_rx:
365 kfree(txdr);
366err_alloc_tx:
367 if (netif_running(adapter->netdev))
368 pch_gbe_up(adapter);
369 return err;
370}
371
372/**
373 * pch_gbe_get_pauseparam - Report pause parameters
374 * @netdev: Network interface device structure
375 * @pause: Pause parameters structure
376 */
377static void pch_gbe_get_pauseparam(struct net_device *netdev,
378 struct ethtool_pauseparam *pause)
379{
380 struct pch_gbe_adapter *adapter = netdev_priv(netdev);
381 struct pch_gbe_hw *hw = &adapter->hw;
382
383 pause->autoneg =
384 ((hw->mac.fc_autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE);
385
386 if (hw->mac.fc == PCH_GBE_FC_RX_PAUSE) {
387 pause->rx_pause = 1;
388 } else if (hw->mac.fc == PCH_GBE_FC_TX_PAUSE) {
389 pause->tx_pause = 1;
390 } else if (hw->mac.fc == PCH_GBE_FC_FULL) {
391 pause->rx_pause = 1;
392 pause->tx_pause = 1;
393 }
394}
395
396/**
397 * pch_gbe_set_pauseparam - Set pause paramters
398 * @netdev: Network interface device structure
399 * @pause: Pause parameters structure
49ce9c2c 400 * Returns:
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401 * 0: Successful.
402 * Negative value: Failed.
403 */
404static int pch_gbe_set_pauseparam(struct net_device *netdev,
405 struct ethtool_pauseparam *pause)
406{
407 struct pch_gbe_adapter *adapter = netdev_priv(netdev);
408 struct pch_gbe_hw *hw = &adapter->hw;
409 int ret = 0;
410
411 hw->mac.fc_autoneg = pause->autoneg;
412 if ((pause->rx_pause) && (pause->tx_pause))
413 hw->mac.fc = PCH_GBE_FC_FULL;
414 else if ((pause->rx_pause) && (!pause->tx_pause))
415 hw->mac.fc = PCH_GBE_FC_RX_PAUSE;
416 else if ((!pause->rx_pause) && (pause->tx_pause))
417 hw->mac.fc = PCH_GBE_FC_TX_PAUSE;
418 else if ((!pause->rx_pause) && (!pause->tx_pause))
419 hw->mac.fc = PCH_GBE_FC_NONE;
420
421 if (hw->mac.fc_autoneg == AUTONEG_ENABLE) {
422 if ((netif_running(adapter->netdev))) {
423 pch_gbe_down(adapter);
424 ret = pch_gbe_up(adapter);
425 } else {
426 pch_gbe_reset(adapter);
427 }
428 } else {
429 ret = pch_gbe_mac_force_mac_fc(hw);
430 }
431 return ret;
432}
433
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434/**
435 * pch_gbe_get_strings - Return a set of strings that describe the requested
436 * objects
437 * @netdev: Network interface device structure
438 * @stringset: Select the stringset. [ETH_SS_TEST] [ETH_SS_STATS]
439 * @data: Pointer of read string data.
440 */
441static void pch_gbe_get_strings(struct net_device *netdev, u32 stringset,
442 u8 *data)
443{
444 u8 *p = data;
445 int i;
446
447 switch (stringset) {
448 case (u32) ETH_SS_STATS:
449 for (i = 0; i < PCH_GBE_GLOBAL_STATS_LEN; i++) {
450 memcpy(p, pch_gbe_gstrings_stats[i].string,
451 ETH_GSTRING_LEN);
452 p += ETH_GSTRING_LEN;
453 }
454 break;
455 }
456}
457
458/**
459 * pch_gbe_get_ethtool_stats - Return statistics about the device
460 * @netdev: Network interface device structure
461 * @stats: Ethtool statue structure
462 * @data: Pointer of read status area
463 */
464static void pch_gbe_get_ethtool_stats(struct net_device *netdev,
465 struct ethtool_stats *stats, u64 *data)
466{
467 struct pch_gbe_adapter *adapter = netdev_priv(netdev);
468 int i;
469 const struct pch_gbe_stats *gstats = pch_gbe_gstrings_stats;
470 char *hw_stats = (char *)&adapter->stats;
471
472 pch_gbe_update_stats(adapter);
473 for (i = 0; i < PCH_GBE_GLOBAL_STATS_LEN; i++) {
474 char *p = hw_stats + gstats->offset;
475 data[i] = gstats->size == sizeof(u64) ? *(u64 *)p:(*(u32 *)p);
476 gstats++;
477 }
478}
479
480static int pch_gbe_get_sset_count(struct net_device *netdev, int sset)
481{
482 switch (sset) {
483 case ETH_SS_STATS:
484 return PCH_GBE_STATS_LEN;
485 default:
486 return -EOPNOTSUPP;
487 }
488}
489
490static const struct ethtool_ops pch_gbe_ethtool_ops = {
491 .get_settings = pch_gbe_get_settings,
492 .set_settings = pch_gbe_set_settings,
493 .get_drvinfo = pch_gbe_get_drvinfo,
494 .get_regs_len = pch_gbe_get_regs_len,
495 .get_regs = pch_gbe_get_regs,
496 .get_wol = pch_gbe_get_wol,
497 .set_wol = pch_gbe_set_wol,
498 .nway_reset = pch_gbe_nway_reset,
499 .get_link = ethtool_op_get_link,
500 .get_ringparam = pch_gbe_get_ringparam,
501 .set_ringparam = pch_gbe_set_ringparam,
502 .get_pauseparam = pch_gbe_get_pauseparam,
503 .set_pauseparam = pch_gbe_set_pauseparam,
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504 .get_strings = pch_gbe_get_strings,
505 .get_ethtool_stats = pch_gbe_get_ethtool_stats,
506 .get_sset_count = pch_gbe_get_sset_count,
507};
508
509void pch_gbe_set_ethtool_ops(struct net_device *netdev)
510{
511 SET_ETHTOOL_OPS(netdev, &pch_gbe_ethtool_ops);
512}
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