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epca.c: reformat comments and coding style improvements
[linux-2.6/openmoko-kernel.git] / drivers / net / atl1 / atl1_ethtool.c
blob68a83be843ab5c232baece1655ff6f9b74aefae2
1 /*
2 * Copyright(c) 2005 - 2006 Attansic Corporation. All rights reserved.
3 * Copyright(c) 2006 Chris Snook <csnook@redhat.com>
4 * Copyright(c) 2006 Jay Cliburn <jcliburn@gmail.com>
5 *
6 * Derived from Intel e1000 driver
7 * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the Free
11 * Software Foundation; either version 2 of the License, or (at your option)
12 * any later version.
13 *
14 * This program is distributed in the hope that it will be useful, but WITHOUT
15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * more details.
18 *
19 * You should have received a copy of the GNU General Public License along with
20 * this program; if not, write to the Free Software Foundation, Inc., 59
21 * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 */
23
24 #include <linux/types.h>
25 #include <linux/pci.h>
26 #include <linux/ethtool.h>
27 #include <linux/netdevice.h>
28 #include <linux/mii.h>
29 #include <asm/uaccess.h>
30
31 #include "atl1.h"
32
33 struct atl1_stats {
34 char stat_string[ETH_GSTRING_LEN];
35 int sizeof_stat;
36 int stat_offset;
37 };
38
39 #define ATL1_STAT(m) sizeof(((struct atl1_adapter *)0)->m), \
40 offsetof(struct atl1_adapter, m)
41
42 static struct atl1_stats atl1_gstrings_stats[] = {
43 {"rx_packets", ATL1_STAT(soft_stats.rx_packets)},
44 {"tx_packets", ATL1_STAT(soft_stats.tx_packets)},
45 {"rx_bytes", ATL1_STAT(soft_stats.rx_bytes)},
46 {"tx_bytes", ATL1_STAT(soft_stats.tx_bytes)},
47 {"rx_errors", ATL1_STAT(soft_stats.rx_errors)},
48 {"tx_errors", ATL1_STAT(soft_stats.tx_errors)},
49 {"rx_dropped", ATL1_STAT(net_stats.rx_dropped)},
50 {"tx_dropped", ATL1_STAT(net_stats.tx_dropped)},
51 {"multicast", ATL1_STAT(soft_stats.multicast)},
52 {"collisions", ATL1_STAT(soft_stats.collisions)},
53 {"rx_length_errors", ATL1_STAT(soft_stats.rx_length_errors)},
54 {"rx_over_errors", ATL1_STAT(soft_stats.rx_missed_errors)},
55 {"rx_crc_errors", ATL1_STAT(soft_stats.rx_crc_errors)},
56 {"rx_frame_errors", ATL1_STAT(soft_stats.rx_frame_errors)},
57 {"rx_fifo_errors", ATL1_STAT(soft_stats.rx_fifo_errors)},
58 {"rx_missed_errors", ATL1_STAT(soft_stats.rx_missed_errors)},
59 {"tx_aborted_errors", ATL1_STAT(soft_stats.tx_aborted_errors)},
60 {"tx_carrier_errors", ATL1_STAT(soft_stats.tx_carrier_errors)},
61 {"tx_fifo_errors", ATL1_STAT(soft_stats.tx_fifo_errors)},
62 {"tx_window_errors", ATL1_STAT(soft_stats.tx_window_errors)},
63 {"tx_abort_exce_coll", ATL1_STAT(soft_stats.excecol)},
64 {"tx_abort_late_coll", ATL1_STAT(soft_stats.latecol)},
65 {"tx_deferred_ok", ATL1_STAT(soft_stats.deffer)},
66 {"tx_single_coll_ok", ATL1_STAT(soft_stats.scc)},
67 {"tx_multi_coll_ok", ATL1_STAT(soft_stats.mcc)},
68 {"tx_underun", ATL1_STAT(soft_stats.tx_underun)},
69 {"tx_trunc", ATL1_STAT(soft_stats.tx_trunc)},
70 {"tx_pause", ATL1_STAT(soft_stats.tx_pause)},
71 {"rx_pause", ATL1_STAT(soft_stats.rx_pause)},
72 {"rx_rrd_ov", ATL1_STAT(soft_stats.rx_rrd_ov)},
73 {"rx_trunc", ATL1_STAT(soft_stats.rx_trunc)}
74 };
75
76 static void atl1_get_ethtool_stats(struct net_device *netdev,
77 struct ethtool_stats *stats, u64 *data)
78 {
79 struct atl1_adapter *adapter = netdev_priv(netdev);
80 int i;
81 char *p;
82
83 for (i = 0; i < ARRAY_SIZE(atl1_gstrings_stats); i++) {
84 p = (char *)adapter+atl1_gstrings_stats[i].stat_offset;
85 data[i] = (atl1_gstrings_stats[i].sizeof_stat ==
86 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
87 }
88
89 }
90
91 static int atl1_get_sset_count(struct net_device *netdev, int sset)
92 {
93 switch (sset) {
94 case ETH_SS_STATS:
95 return ARRAY_SIZE(atl1_gstrings_stats);
96 default:
97 return -EOPNOTSUPP;
98 }
99 }
100
101 static int atl1_get_settings(struct net_device *netdev,
102 struct ethtool_cmd *ecmd)
103 {
104 struct atl1_adapter *adapter = netdev_priv(netdev);
105 struct atl1_hw *hw = &adapter->hw;
106
107 ecmd->supported = (SUPPORTED_10baseT_Half |
108 SUPPORTED_10baseT_Full |
109 SUPPORTED_100baseT_Half |
110 SUPPORTED_100baseT_Full |
111 SUPPORTED_1000baseT_Full |
112 SUPPORTED_Autoneg | SUPPORTED_TP);
113 ecmd->advertising = ADVERTISED_TP;
114 if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
115 hw->media_type == MEDIA_TYPE_1000M_FULL) {
116 ecmd->advertising |= ADVERTISED_Autoneg;
117 if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR) {
118 ecmd->advertising |= ADVERTISED_Autoneg;
119 ecmd->advertising |=
120 (ADVERTISED_10baseT_Half |
121 ADVERTISED_10baseT_Full |
122 ADVERTISED_100baseT_Half |
123 ADVERTISED_100baseT_Full |
124 ADVERTISED_1000baseT_Full);
125 }
126 else
127 ecmd->advertising |= (ADVERTISED_1000baseT_Full);
128 }
129 ecmd->port = PORT_TP;
130 ecmd->phy_address = 0;
131 ecmd->transceiver = XCVR_INTERNAL;
132
133 if (netif_carrier_ok(adapter->netdev)) {
134 u16 link_speed, link_duplex;
135 atl1_get_speed_and_duplex(hw, &link_speed, &link_duplex);
136 ecmd->speed = link_speed;
137 if (link_duplex == FULL_DUPLEX)
138 ecmd->duplex = DUPLEX_FULL;
139 else
140 ecmd->duplex = DUPLEX_HALF;
141 } else {
142 ecmd->speed = -1;
143 ecmd->duplex = -1;
144 }
145 if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
146 hw->media_type == MEDIA_TYPE_1000M_FULL)
147 ecmd->autoneg = AUTONEG_ENABLE;
148 else
149 ecmd->autoneg = AUTONEG_DISABLE;
150
151 return 0;
152 }
153
154 static int atl1_set_settings(struct net_device *netdev,
155 struct ethtool_cmd *ecmd)
156 {
157 struct atl1_adapter *adapter = netdev_priv(netdev);
158 struct atl1_hw *hw = &adapter->hw;
159 u16 phy_data;
160 int ret_val = 0;
161 u16 old_media_type = hw->media_type;
162
163 if (netif_running(adapter->netdev)) {
164 dev_dbg(&adapter->pdev->dev, "ethtool shutting down adapter\n");
165 atl1_down(adapter);
166 }
167
168 if (ecmd->autoneg == AUTONEG_ENABLE)
169 hw->media_type = MEDIA_TYPE_AUTO_SENSOR;
170 else {
171 if (ecmd->speed == SPEED_1000) {
172 if (ecmd->duplex != DUPLEX_FULL) {
173 dev_warn(&adapter->pdev->dev,
174 "can't force to 1000M half duplex\n");
175 ret_val = -EINVAL;
176 goto exit_sset;
177 }
178 hw->media_type = MEDIA_TYPE_1000M_FULL;
179 } else if (ecmd->speed == SPEED_100) {
180 if (ecmd->duplex == DUPLEX_FULL) {
181 hw->media_type = MEDIA_TYPE_100M_FULL;
182 } else
183 hw->media_type = MEDIA_TYPE_100M_HALF;
184 } else {
185 if (ecmd->duplex == DUPLEX_FULL)
186 hw->media_type = MEDIA_TYPE_10M_FULL;
187 else
188 hw->media_type = MEDIA_TYPE_10M_HALF;
189 }
190 }
191 switch (hw->media_type) {
192 case MEDIA_TYPE_AUTO_SENSOR:
193 ecmd->advertising =
194 ADVERTISED_10baseT_Half |
195 ADVERTISED_10baseT_Full |
196 ADVERTISED_100baseT_Half |
197 ADVERTISED_100baseT_Full |
198 ADVERTISED_1000baseT_Full |
199 ADVERTISED_Autoneg | ADVERTISED_TP;
200 break;
201 case MEDIA_TYPE_1000M_FULL:
202 ecmd->advertising =
203 ADVERTISED_1000baseT_Full |
204 ADVERTISED_Autoneg | ADVERTISED_TP;
205 break;
206 default:
207 ecmd->advertising = 0;
208 break;
209 }
210 if (atl1_phy_setup_autoneg_adv(hw)) {
211 ret_val = -EINVAL;
212 dev_warn(&adapter->pdev->dev,
213 "invalid ethtool speed/duplex setting\n");
214 goto exit_sset;
215 }
216 if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
217 hw->media_type == MEDIA_TYPE_1000M_FULL)
218 phy_data = MII_CR_RESET | MII_CR_AUTO_NEG_EN;
219 else {
220 switch (hw->media_type) {
221 case MEDIA_TYPE_100M_FULL:
222 phy_data =
223 MII_CR_FULL_DUPLEX | MII_CR_SPEED_100 |
224 MII_CR_RESET;
225 break;
226 case MEDIA_TYPE_100M_HALF:
227 phy_data = MII_CR_SPEED_100 | MII_CR_RESET;
228 break;
229 case MEDIA_TYPE_10M_FULL:
230 phy_data =
231 MII_CR_FULL_DUPLEX | MII_CR_SPEED_10 | MII_CR_RESET;
232 break;
233 default: /* MEDIA_TYPE_10M_HALF: */
234 phy_data = MII_CR_SPEED_10 | MII_CR_RESET;
235 break;
236 }
237 }
238 atl1_write_phy_reg(hw, MII_BMCR, phy_data);
239 exit_sset:
240 if (ret_val)
241 hw->media_type = old_media_type;
242
243 if (netif_running(adapter->netdev)) {
244 dev_dbg(&adapter->pdev->dev, "ethtool starting adapter\n");
245 atl1_up(adapter);
246 } else if (!ret_val) {
247 dev_dbg(&adapter->pdev->dev, "ethtool resetting adapter\n");
248 atl1_reset(adapter);
249 }
250 return ret_val;
251 }
252
253 static void atl1_get_drvinfo(struct net_device *netdev,
254 struct ethtool_drvinfo *drvinfo)
255 {
256 struct atl1_adapter *adapter = netdev_priv(netdev);
257
258 strncpy(drvinfo->driver, atl1_driver_name, sizeof(drvinfo->driver));
259 strncpy(drvinfo->version, atl1_driver_version,
260 sizeof(drvinfo->version));
261 strncpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version));
262 strncpy(drvinfo->bus_info, pci_name(adapter->pdev),
263 sizeof(drvinfo->bus_info));
264 drvinfo->eedump_len = ATL1_EEDUMP_LEN;
265 }
266
267 static void atl1_get_wol(struct net_device *netdev,
268 struct ethtool_wolinfo *wol)
269 {
270 struct atl1_adapter *adapter = netdev_priv(netdev);
271
272 wol->supported = WAKE_UCAST | WAKE_MCAST | WAKE_BCAST | WAKE_MAGIC;
273 wol->wolopts = 0;
274 if (adapter->wol & ATL1_WUFC_EX)
275 wol->wolopts |= WAKE_UCAST;
276 if (adapter->wol & ATL1_WUFC_MC)
277 wol->wolopts |= WAKE_MCAST;
278 if (adapter->wol & ATL1_WUFC_BC)
279 wol->wolopts |= WAKE_BCAST;
280 if (adapter->wol & ATL1_WUFC_MAG)
281 wol->wolopts |= WAKE_MAGIC;
282 return;
283 }
284
285 static int atl1_set_wol(struct net_device *netdev,
286 struct ethtool_wolinfo *wol)
287 {
288 struct atl1_adapter *adapter = netdev_priv(netdev);
289
290 if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE))
291 return -EOPNOTSUPP;
292 adapter->wol = 0;
293 if (wol->wolopts & WAKE_UCAST)
294 adapter->wol |= ATL1_WUFC_EX;
295 if (wol->wolopts & WAKE_MCAST)
296 adapter->wol |= ATL1_WUFC_MC;
297 if (wol->wolopts & WAKE_BCAST)
298 adapter->wol |= ATL1_WUFC_BC;
299 if (wol->wolopts & WAKE_MAGIC)
300 adapter->wol |= ATL1_WUFC_MAG;
301 return 0;
302 }
303
304 static void atl1_get_ringparam(struct net_device *netdev,
305 struct ethtool_ringparam *ring)
306 {
307 struct atl1_adapter *adapter = netdev_priv(netdev);
308 struct atl1_tpd_ring *txdr = &adapter->tpd_ring;
309 struct atl1_rfd_ring *rxdr = &adapter->rfd_ring;
310
311 ring->rx_max_pending = ATL1_MAX_RFD;
312 ring->tx_max_pending = ATL1_MAX_TPD;
313 ring->rx_mini_max_pending = 0;
314 ring->rx_jumbo_max_pending = 0;
315 ring->rx_pending = rxdr->count;
316 ring->tx_pending = txdr->count;
317 ring->rx_mini_pending = 0;
318 ring->rx_jumbo_pending = 0;
319 }
320
321 static int atl1_set_ringparam(struct net_device *netdev,
322 struct ethtool_ringparam *ring)
323 {
324 struct atl1_adapter *adapter = netdev_priv(netdev);
325 struct atl1_tpd_ring *tpdr = &adapter->tpd_ring;
326 struct atl1_rrd_ring *rrdr = &adapter->rrd_ring;
327 struct atl1_rfd_ring *rfdr = &adapter->rfd_ring;
328
329 struct atl1_tpd_ring tpd_old, tpd_new;
330 struct atl1_rfd_ring rfd_old, rfd_new;
331 struct atl1_rrd_ring rrd_old, rrd_new;
332 struct atl1_ring_header rhdr_old, rhdr_new;
333 int err;
334
335 tpd_old = adapter->tpd_ring;
336 rfd_old = adapter->rfd_ring;
337 rrd_old = adapter->rrd_ring;
338 rhdr_old = adapter->ring_header;
339
340 if (netif_running(adapter->netdev))
341 atl1_down(adapter);
342
343 rfdr->count = (u16) max(ring->rx_pending, (u32) ATL1_MIN_RFD);
344 rfdr->count = rfdr->count > ATL1_MAX_RFD ? ATL1_MAX_RFD :
345 rfdr->count;
346 rfdr->count = (rfdr->count + 3) & ~3;
347 rrdr->count = rfdr->count;
348
349 tpdr->count = (u16) max(ring->tx_pending, (u32) ATL1_MIN_TPD);
350 tpdr->count = tpdr->count > ATL1_MAX_TPD ? ATL1_MAX_TPD :
351 tpdr->count;
352 tpdr->count = (tpdr->count + 3) & ~3;
353
354 if (netif_running(adapter->netdev)) {
355 /* try to get new resources before deleting old */
356 err = atl1_setup_ring_resources(adapter);
357 if (err)
358 goto err_setup_ring;
359
360 /*
361 * save the new, restore the old in order to free it,
362 * then restore the new back again
363 */
364
365 rfd_new = adapter->rfd_ring;
366 rrd_new = adapter->rrd_ring;
367 tpd_new = adapter->tpd_ring;
368 rhdr_new = adapter->ring_header;
369 adapter->rfd_ring = rfd_old;
370 adapter->rrd_ring = rrd_old;
371 adapter->tpd_ring = tpd_old;
372 adapter->ring_header = rhdr_old;
373 atl1_free_ring_resources(adapter);
374 adapter->rfd_ring = rfd_new;
375 adapter->rrd_ring = rrd_new;
376 adapter->tpd_ring = tpd_new;
377 adapter->ring_header = rhdr_new;
378
379 err = atl1_up(adapter);
380 if (err)
381 return err;
382 }
383 return 0;
384
385 err_setup_ring:
386 adapter->rfd_ring = rfd_old;
387 adapter->rrd_ring = rrd_old;
388 adapter->tpd_ring = tpd_old;
389 adapter->ring_header = rhdr_old;
390 atl1_up(adapter);
391 return err;
392 }
393
394 static void atl1_get_pauseparam(struct net_device *netdev,
395 struct ethtool_pauseparam *epause)
396 {
397 struct atl1_adapter *adapter = netdev_priv(netdev);
398 struct atl1_hw *hw = &adapter->hw;
399
400 if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
401 hw->media_type == MEDIA_TYPE_1000M_FULL) {
402 epause->autoneg = AUTONEG_ENABLE;
403 } else {
404 epause->autoneg = AUTONEG_DISABLE;
405 }
406 epause->rx_pause = 1;
407 epause->tx_pause = 1;
408 }
409
410 static int atl1_set_pauseparam(struct net_device *netdev,
411 struct ethtool_pauseparam *epause)
412 {
413 struct atl1_adapter *adapter = netdev_priv(netdev);
414 struct atl1_hw *hw = &adapter->hw;
415
416 if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
417 hw->media_type == MEDIA_TYPE_1000M_FULL) {
418 epause->autoneg = AUTONEG_ENABLE;
419 } else {
420 epause->autoneg = AUTONEG_DISABLE;
421 }
422
423 epause->rx_pause = 1;
424 epause->tx_pause = 1;
425
426 return 0;
427 }
428
429 static u32 atl1_get_rx_csum(struct net_device *netdev)
430 {
431 return 1;
432 }
433
434 static void atl1_get_strings(struct net_device *netdev, u32 stringset,
435 u8 *data)
436 {
437 u8 *p = data;
438 int i;
439
440 switch (stringset) {
441 case ETH_SS_STATS:
442 for (i = 0; i < ARRAY_SIZE(atl1_gstrings_stats); i++) {
443 memcpy(p, atl1_gstrings_stats[i].stat_string,
444 ETH_GSTRING_LEN);
445 p += ETH_GSTRING_LEN;
446 }
447 break;
448 }
449 }
450
451 static int atl1_nway_reset(struct net_device *netdev)
452 {
453 struct atl1_adapter *adapter = netdev_priv(netdev);
454 struct atl1_hw *hw = &adapter->hw;
455
456 if (netif_running(netdev)) {
457 u16 phy_data;
458 atl1_down(adapter);
459
460 if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
461 hw->media_type == MEDIA_TYPE_1000M_FULL) {
462 phy_data = MII_CR_RESET | MII_CR_AUTO_NEG_EN;
463 } else {
464 switch (hw->media_type) {
465 case MEDIA_TYPE_100M_FULL:
466 phy_data = MII_CR_FULL_DUPLEX |
467 MII_CR_SPEED_100 | MII_CR_RESET;
468 break;
469 case MEDIA_TYPE_100M_HALF:
470 phy_data = MII_CR_SPEED_100 | MII_CR_RESET;
471 break;
472 case MEDIA_TYPE_10M_FULL:
473 phy_data = MII_CR_FULL_DUPLEX |
474 MII_CR_SPEED_10 | MII_CR_RESET;
475 break;
476 default: /* MEDIA_TYPE_10M_HALF */
477 phy_data = MII_CR_SPEED_10 | MII_CR_RESET;
478 }
479 }
480 atl1_write_phy_reg(hw, MII_BMCR, phy_data);
481 atl1_up(adapter);
482 }
483 return 0;
484 }
485
486 const struct ethtool_ops atl1_ethtool_ops = {
487 .get_settings = atl1_get_settings,
488 .set_settings = atl1_set_settings,
489 .get_drvinfo = atl1_get_drvinfo,
490 .get_wol = atl1_get_wol,
491 .set_wol = atl1_set_wol,
492 .get_ringparam = atl1_get_ringparam,
493 .set_ringparam = atl1_set_ringparam,
494 .get_pauseparam = atl1_get_pauseparam,
495 .set_pauseparam = atl1_set_pauseparam,
496 .get_rx_csum = atl1_get_rx_csum,
497 .set_tx_csum = ethtool_op_set_tx_hw_csum,
498 .get_link = ethtool_op_get_link,
499 .set_sg = ethtool_op_set_sg,
500 .get_strings = atl1_get_strings,
501 .nway_reset = atl1_nway_reset,
502 .get_ethtool_stats = atl1_get_ethtool_stats,
503 .get_sset_count = atl1_get_sset_count,
504 .set_tso = ethtool_op_set_tso,
505 };
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