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USB: cp210x: call generic open last in open
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / net / core / ethtool.c
blob4fb77049e83dd47118b30997cc6affb7b207870a
1 /*
2 * net/core/ethtool.c - Ethtool ioctl handler
3 * Copyright (c) 2003 Matthew Wilcox <matthew@wil.cx>
4 *
5 * This file is where we call all the ethtool_ops commands to get
6 * the information ethtool needs.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14 #include <linux/module.h>
15 #include <linux/types.h>
16 #include <linux/capability.h>
17 #include <linux/errno.h>
18 #include <linux/ethtool.h>
19 #include <linux/netdevice.h>
20 #include <linux/bitops.h>
21 #include <linux/uaccess.h>
22 #include <linux/vmalloc.h>
23 #include <linux/slab.h>
24 #include <linux/rtnetlink.h>
25 #include <linux/sched.h>
26
27 /*
28 * Some useful ethtool_ops methods that're device independent.
29 * If we find that all drivers want to do the same thing here,
30 * we can turn these into dev_() function calls.
31 */
32
33 u32 ethtool_op_get_link(struct net_device *dev)
34 {
35 return netif_carrier_ok(dev) ? 1 : 0;
36 }
37 EXPORT_SYMBOL(ethtool_op_get_link);
38
39 u32 ethtool_op_get_tx_csum(struct net_device *dev)
40 {
41 return (dev->features & NETIF_F_ALL_CSUM) != 0;
42 }
43 EXPORT_SYMBOL(ethtool_op_get_tx_csum);
44
45 int ethtool_op_set_tx_csum(struct net_device *dev, u32 data)
46 {
47 if (data)
48 dev->features |= NETIF_F_IP_CSUM;
49 else
50 dev->features &= ~NETIF_F_IP_CSUM;
51
52 return 0;
53 }
54 EXPORT_SYMBOL(ethtool_op_set_tx_csum);
55
56 int ethtool_op_set_tx_hw_csum(struct net_device *dev, u32 data)
57 {
58 if (data)
59 dev->features |= NETIF_F_HW_CSUM;
60 else
61 dev->features &= ~NETIF_F_HW_CSUM;
62
63 return 0;
64 }
65 EXPORT_SYMBOL(ethtool_op_set_tx_hw_csum);
66
67 int ethtool_op_set_tx_ipv6_csum(struct net_device *dev, u32 data)
68 {
69 if (data)
70 dev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
71 else
72 dev->features &= ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM);
73
74 return 0;
75 }
76 EXPORT_SYMBOL(ethtool_op_set_tx_ipv6_csum);
77
78 u32 ethtool_op_get_sg(struct net_device *dev)
79 {
80 return (dev->features & NETIF_F_SG) != 0;
81 }
82 EXPORT_SYMBOL(ethtool_op_get_sg);
83
84 int ethtool_op_set_sg(struct net_device *dev, u32 data)
85 {
86 if (data)
87 dev->features |= NETIF_F_SG;
88 else
89 dev->features &= ~NETIF_F_SG;
90
91 return 0;
92 }
93 EXPORT_SYMBOL(ethtool_op_set_sg);
94
95 u32 ethtool_op_get_tso(struct net_device *dev)
96 {
97 return (dev->features & NETIF_F_TSO) != 0;
98 }
99 EXPORT_SYMBOL(ethtool_op_get_tso);
100
101 int ethtool_op_set_tso(struct net_device *dev, u32 data)
102 {
103 if (data)
104 dev->features |= NETIF_F_TSO;
105 else
106 dev->features &= ~NETIF_F_TSO;
107
108 return 0;
109 }
110 EXPORT_SYMBOL(ethtool_op_set_tso);
111
112 u32 ethtool_op_get_ufo(struct net_device *dev)
113 {
114 return (dev->features & NETIF_F_UFO) != 0;
115 }
116 EXPORT_SYMBOL(ethtool_op_get_ufo);
117
118 int ethtool_op_set_ufo(struct net_device *dev, u32 data)
119 {
120 if (data)
121 dev->features |= NETIF_F_UFO;
122 else
123 dev->features &= ~NETIF_F_UFO;
124 return 0;
125 }
126 EXPORT_SYMBOL(ethtool_op_set_ufo);
127
128 /* the following list of flags are the same as their associated
129 * NETIF_F_xxx values in include/linux/netdevice.h
130 */
131 static const u32 flags_dup_features =
132 (ETH_FLAG_LRO | ETH_FLAG_RXVLAN | ETH_FLAG_TXVLAN | ETH_FLAG_NTUPLE |
133 ETH_FLAG_RXHASH);
134
135 u32 ethtool_op_get_flags(struct net_device *dev)
136 {
137 /* in the future, this function will probably contain additional
138 * handling for flags which are not so easily handled
139 * by a simple masking operation
140 */
141
142 return dev->features & flags_dup_features;
143 }
144 EXPORT_SYMBOL(ethtool_op_get_flags);
145
146 /* Check if device can enable (or disable) particular feature coded in "data"
147 * argument. Flags "supported" describe features that can be toggled by device.
148 * If feature can not be toggled, it state (enabled or disabled) must match
149 * hardcoded device features state, otherwise flags are marked as invalid.
150 */
151 bool ethtool_invalid_flags(struct net_device *dev, u32 data, u32 supported)
152 {
153 u32 features = dev->features & flags_dup_features;
154 /* "data" can contain only flags_dup_features bits,
155 * see __ethtool_set_flags */
156
157 return (features & ~supported) != (data & ~supported);
158 }
159 EXPORT_SYMBOL(ethtool_invalid_flags);
160
161 int ethtool_op_set_flags(struct net_device *dev, u32 data, u32 supported)
162 {
163 if (ethtool_invalid_flags(dev, data, supported))
164 return -EINVAL;
165
166 dev->features = ((dev->features & ~flags_dup_features) |
167 (data & flags_dup_features));
168 return 0;
169 }
170 EXPORT_SYMBOL(ethtool_op_set_flags);
171
172 void ethtool_ntuple_flush(struct net_device *dev)
173 {
174 struct ethtool_rx_ntuple_flow_spec_container *fsc, *f;
175
176 list_for_each_entry_safe(fsc, f, &dev->ethtool_ntuple_list.list, list) {
177 list_del(&fsc->list);
178 kfree(fsc);
179 }
180 dev->ethtool_ntuple_list.count = 0;
181 }
182 EXPORT_SYMBOL(ethtool_ntuple_flush);
183
184 /* Handlers for each ethtool command */
185
186 #define ETHTOOL_DEV_FEATURE_WORDS 1
187
188 static void ethtool_get_features_compat(struct net_device *dev,
189 struct ethtool_get_features_block *features)
190 {
191 if (!dev->ethtool_ops)
192 return;
193
194 /* getting RX checksum */
195 if (dev->ethtool_ops->get_rx_csum)
196 if (dev->ethtool_ops->get_rx_csum(dev))
197 features[0].active |= NETIF_F_RXCSUM;
198
199 /* mark legacy-changeable features */
200 if (dev->ethtool_ops->set_sg)
201 features[0].available |= NETIF_F_SG;
202 if (dev->ethtool_ops->set_tx_csum)
203 features[0].available |= NETIF_F_ALL_CSUM;
204 if (dev->ethtool_ops->set_tso)
205 features[0].available |= NETIF_F_ALL_TSO;
206 if (dev->ethtool_ops->set_rx_csum)
207 features[0].available |= NETIF_F_RXCSUM;
208 if (dev->ethtool_ops->set_flags)
209 features[0].available |= flags_dup_features;
210 }
211
212 static int ethtool_set_feature_compat(struct net_device *dev,
213 int (*legacy_set)(struct net_device *, u32),
214 struct ethtool_set_features_block *features, u32 mask)
215 {
216 u32 do_set;
217
218 if (!legacy_set)
219 return 0;
220
221 if (!(features[0].valid & mask))
222 return 0;
223
224 features[0].valid &= ~mask;
225
226 do_set = !!(features[0].requested & mask);
227
228 if (legacy_set(dev, do_set) < 0)
229 netdev_info(dev,
230 "Legacy feature change (%s) failed for 0x%08x\n",
231 do_set ? "set" : "clear", mask);
232
233 return 1;
234 }
235
236 static int ethtool_set_flags_compat(struct net_device *dev,
237 int (*legacy_set)(struct net_device *, u32),
238 struct ethtool_set_features_block *features, u32 mask)
239 {
240 u32 value;
241
242 if (!legacy_set)
243 return 0;
244
245 if (!(features[0].valid & mask))
246 return 0;
247
248 value = dev->features & ~features[0].valid;
249 value |= features[0].requested;
250
251 features[0].valid &= ~mask;
252
253 if (legacy_set(dev, value & mask) < 0)
254 netdev_info(dev, "Legacy flags change failed\n");
255
256 return 1;
257 }
258
259 static int ethtool_set_features_compat(struct net_device *dev,
260 struct ethtool_set_features_block *features)
261 {
262 int compat;
263
264 if (!dev->ethtool_ops)
265 return 0;
266
267 compat = ethtool_set_feature_compat(dev, dev->ethtool_ops->set_sg,
268 features, NETIF_F_SG);
269 compat |= ethtool_set_feature_compat(dev, dev->ethtool_ops->set_tx_csum,
270 features, NETIF_F_ALL_CSUM);
271 compat |= ethtool_set_feature_compat(dev, dev->ethtool_ops->set_tso,
272 features, NETIF_F_ALL_TSO);
273 compat |= ethtool_set_feature_compat(dev, dev->ethtool_ops->set_rx_csum,
274 features, NETIF_F_RXCSUM);
275 compat |= ethtool_set_flags_compat(dev, dev->ethtool_ops->set_flags,
276 features, flags_dup_features);
277
278 return compat;
279 }
280
281 static int ethtool_get_features(struct net_device *dev, void __user *useraddr)
282 {
283 struct ethtool_gfeatures cmd = {
284 .cmd = ETHTOOL_GFEATURES,
285 .size = ETHTOOL_DEV_FEATURE_WORDS,
286 };
287 struct ethtool_get_features_block features[ETHTOOL_DEV_FEATURE_WORDS] = {
288 {
289 .available = dev->hw_features,
290 .requested = dev->wanted_features,
291 .active = dev->features,
292 .never_changed = NETIF_F_NEVER_CHANGE,
293 },
294 };
295 u32 __user *sizeaddr;
296 u32 copy_size;
297
298 ethtool_get_features_compat(dev, features);
299
300 sizeaddr = useraddr + offsetof(struct ethtool_gfeatures, size);
301 if (get_user(copy_size, sizeaddr))
302 return -EFAULT;
303
304 if (copy_size > ETHTOOL_DEV_FEATURE_WORDS)
305 copy_size = ETHTOOL_DEV_FEATURE_WORDS;
306
307 if (copy_to_user(useraddr, &cmd, sizeof(cmd)))
308 return -EFAULT;
309 useraddr += sizeof(cmd);
310 if (copy_to_user(useraddr, features, copy_size * sizeof(*features)))
311 return -EFAULT;
312
313 return 0;
314 }
315
316 static int ethtool_set_features(struct net_device *dev, void __user *useraddr)
317 {
318 struct ethtool_sfeatures cmd;
319 struct ethtool_set_features_block features[ETHTOOL_DEV_FEATURE_WORDS];
320 int ret = 0;
321
322 if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
323 return -EFAULT;
324 useraddr += sizeof(cmd);
325
326 if (cmd.size != ETHTOOL_DEV_FEATURE_WORDS)
327 return -EINVAL;
328
329 if (copy_from_user(features, useraddr, sizeof(features)))
330 return -EFAULT;
331
332 if (features[0].valid & ~NETIF_F_ETHTOOL_BITS)
333 return -EINVAL;
334
335 if (ethtool_set_features_compat(dev, features))
336 ret |= ETHTOOL_F_COMPAT;
337
338 if (features[0].valid & ~dev->hw_features) {
339 features[0].valid &= dev->hw_features;
340 ret |= ETHTOOL_F_UNSUPPORTED;
341 }
342
343 dev->wanted_features &= ~features[0].valid;
344 dev->wanted_features |= features[0].valid & features[0].requested;
345 __netdev_update_features(dev);
346
347 if ((dev->wanted_features ^ dev->features) & features[0].valid)
348 ret |= ETHTOOL_F_WISH;
349
350 return ret;
351 }
352
353 static const char netdev_features_strings[ETHTOOL_DEV_FEATURE_WORDS * 32][ETH_GSTRING_LEN] = {
354 /* NETIF_F_SG */ "tx-scatter-gather",
355 /* NETIF_F_IP_CSUM */ "tx-checksum-ipv4",
356 /* NETIF_F_NO_CSUM */ "tx-checksum-unneeded",
357 /* NETIF_F_HW_CSUM */ "tx-checksum-ip-generic",
358 /* NETIF_F_IPV6_CSUM */ "tx-checksum-ipv6",
359 /* NETIF_F_HIGHDMA */ "highdma",
360 /* NETIF_F_FRAGLIST */ "tx-scatter-gather-fraglist",
361 /* NETIF_F_HW_VLAN_TX */ "tx-vlan-hw-insert",
362
363 /* NETIF_F_HW_VLAN_RX */ "rx-vlan-hw-parse",
364 /* NETIF_F_HW_VLAN_FILTER */ "rx-vlan-filter",
365 /* NETIF_F_VLAN_CHALLENGED */ "vlan-challenged",
366 /* NETIF_F_GSO */ "tx-generic-segmentation",
367 /* NETIF_F_LLTX */ "tx-lockless",
368 /* NETIF_F_NETNS_LOCAL */ "netns-local",
369 /* NETIF_F_GRO */ "rx-gro",
370 /* NETIF_F_LRO */ "rx-lro",
371
372 /* NETIF_F_TSO */ "tx-tcp-segmentation",
373 /* NETIF_F_UFO */ "tx-udp-fragmentation",
374 /* NETIF_F_GSO_ROBUST */ "tx-gso-robust",
375 /* NETIF_F_TSO_ECN */ "tx-tcp-ecn-segmentation",
376 /* NETIF_F_TSO6 */ "tx-tcp6-segmentation",
377 /* NETIF_F_FSO */ "tx-fcoe-segmentation",
378 "",
379 "",
380
381 /* NETIF_F_FCOE_CRC */ "tx-checksum-fcoe-crc",
382 /* NETIF_F_SCTP_CSUM */ "tx-checksum-sctp",
383 /* NETIF_F_FCOE_MTU */ "fcoe-mtu",
384 /* NETIF_F_NTUPLE */ "rx-ntuple-filter",
385 /* NETIF_F_RXHASH */ "rx-hashing",
386 /* NETIF_F_RXCSUM */ "rx-checksum",
387 /* NETIF_F_NOCACHE_COPY */ "tx-nocache-copy",
388 /* NETIF_F_LOOPBACK */ "loopback",
389 };
390
391 static int __ethtool_get_sset_count(struct net_device *dev, int sset)
392 {
393 const struct ethtool_ops *ops = dev->ethtool_ops;
394
395 if (sset == ETH_SS_FEATURES)
396 return ARRAY_SIZE(netdev_features_strings);
397
398 if (ops && ops->get_sset_count && ops->get_strings)
399 return ops->get_sset_count(dev, sset);
400 else
401 return -EOPNOTSUPP;
402 }
403
404 static void __ethtool_get_strings(struct net_device *dev,
405 u32 stringset, u8 *data)
406 {
407 const struct ethtool_ops *ops = dev->ethtool_ops;
408
409 if (stringset == ETH_SS_FEATURES)
410 memcpy(data, netdev_features_strings,
411 sizeof(netdev_features_strings));
412 else
413 /* ops->get_strings is valid because checked earlier */
414 ops->get_strings(dev, stringset, data);
415 }
416
417 static u32 ethtool_get_feature_mask(u32 eth_cmd)
418 {
419 /* feature masks of legacy discrete ethtool ops */
420
421 switch (eth_cmd) {
422 case ETHTOOL_GTXCSUM:
423 case ETHTOOL_STXCSUM:
424 return NETIF_F_ALL_CSUM | NETIF_F_SCTP_CSUM;
425 case ETHTOOL_GRXCSUM:
426 case ETHTOOL_SRXCSUM:
427 return NETIF_F_RXCSUM;
428 case ETHTOOL_GSG:
429 case ETHTOOL_SSG:
430 return NETIF_F_SG;
431 case ETHTOOL_GTSO:
432 case ETHTOOL_STSO:
433 return NETIF_F_ALL_TSO;
434 case ETHTOOL_GUFO:
435 case ETHTOOL_SUFO:
436 return NETIF_F_UFO;
437 case ETHTOOL_GGSO:
438 case ETHTOOL_SGSO:
439 return NETIF_F_GSO;
440 case ETHTOOL_GGRO:
441 case ETHTOOL_SGRO:
442 return NETIF_F_GRO;
443 default:
444 BUG();
445 }
446 }
447
448 static void *__ethtool_get_one_feature_actor(struct net_device *dev, u32 ethcmd)
449 {
450 const struct ethtool_ops *ops = dev->ethtool_ops;
451
452 if (!ops)
453 return NULL;
454
455 switch (ethcmd) {
456 case ETHTOOL_GTXCSUM:
457 return ops->get_tx_csum;
458 case ETHTOOL_GRXCSUM:
459 return ops->get_rx_csum;
460 case ETHTOOL_SSG:
461 return ops->get_sg;
462 case ETHTOOL_STSO:
463 return ops->get_tso;
464 case ETHTOOL_SUFO:
465 return ops->get_ufo;
466 default:
467 return NULL;
468 }
469 }
470
471 static u32 __ethtool_get_rx_csum_oldbug(struct net_device *dev)
472 {
473 return !!(dev->features & NETIF_F_ALL_CSUM);
474 }
475
476 static int ethtool_get_one_feature(struct net_device *dev,
477 char __user *useraddr, u32 ethcmd)
478 {
479 u32 mask = ethtool_get_feature_mask(ethcmd);
480 struct ethtool_value edata = {
481 .cmd = ethcmd,
482 .data = !!(dev->features & mask),
483 };
484
485 /* compatibility with discrete get_ ops */
486 if (!(dev->hw_features & mask)) {
487 u32 (*actor)(struct net_device *);
488
489 actor = __ethtool_get_one_feature_actor(dev, ethcmd);
490
491 /* bug compatibility with old get_rx_csum */
492 if (ethcmd == ETHTOOL_GRXCSUM && !actor)
493 actor = __ethtool_get_rx_csum_oldbug;
494
495 if (actor)
496 edata.data = actor(dev);
497 }
498
499 if (copy_to_user(useraddr, &edata, sizeof(edata)))
500 return -EFAULT;
501 return 0;
502 }
503
504 static int __ethtool_set_tx_csum(struct net_device *dev, u32 data);
505 static int __ethtool_set_rx_csum(struct net_device *dev, u32 data);
506 static int __ethtool_set_sg(struct net_device *dev, u32 data);
507 static int __ethtool_set_tso(struct net_device *dev, u32 data);
508 static int __ethtool_set_ufo(struct net_device *dev, u32 data);
509
510 static int ethtool_set_one_feature(struct net_device *dev,
511 void __user *useraddr, u32 ethcmd)
512 {
513 struct ethtool_value edata;
514 u32 mask;
515
516 if (copy_from_user(&edata, useraddr, sizeof(edata)))
517 return -EFAULT;
518
519 mask = ethtool_get_feature_mask(ethcmd);
520 mask &= dev->hw_features;
521 if (mask) {
522 if (edata.data)
523 dev->wanted_features |= mask;
524 else
525 dev->wanted_features &= ~mask;
526
527 __netdev_update_features(dev);
528 return 0;
529 }
530
531 /* Driver is not converted to ndo_fix_features or does not
532 * support changing this offload. In the latter case it won't
533 * have corresponding ethtool_ops field set.
534 *
535 * Following part is to be removed after all drivers advertise
536 * their changeable features in netdev->hw_features and stop
537 * using discrete offload setting ops.
538 */
539
540 switch (ethcmd) {
541 case ETHTOOL_STXCSUM:
542 return __ethtool_set_tx_csum(dev, edata.data);
543 case ETHTOOL_SRXCSUM:
544 return __ethtool_set_rx_csum(dev, edata.data);
545 case ETHTOOL_SSG:
546 return __ethtool_set_sg(dev, edata.data);
547 case ETHTOOL_STSO:
548 return __ethtool_set_tso(dev, edata.data);
549 case ETHTOOL_SUFO:
550 return __ethtool_set_ufo(dev, edata.data);
551 default:
552 return -EOPNOTSUPP;
553 }
554 }
555
556 int __ethtool_set_flags(struct net_device *dev, u32 data)
557 {
558 u32 changed;
559
560 if (data & ~flags_dup_features)
561 return -EINVAL;
562
563 /* legacy set_flags() op */
564 if (dev->ethtool_ops->set_flags) {
565 if (unlikely(dev->hw_features & flags_dup_features))
566 netdev_warn(dev,
567 "driver BUG: mixed hw_features and set_flags()\n");
568 return dev->ethtool_ops->set_flags(dev, data);
569 }
570
571 /* allow changing only bits set in hw_features */
572 changed = (data ^ dev->features) & flags_dup_features;
573 if (changed & ~dev->hw_features)
574 return (changed & dev->hw_features) ? -EINVAL : -EOPNOTSUPP;
575
576 dev->wanted_features =
577 (dev->wanted_features & ~changed) | (data & dev->hw_features);
578
579 __netdev_update_features(dev);
580
581 return 0;
582 }
583
584 static int ethtool_get_settings(struct net_device *dev, void __user *useraddr)
585 {
586 struct ethtool_cmd cmd = { .cmd = ETHTOOL_GSET };
587 int err;
588
589 if (!dev->ethtool_ops->get_settings)
590 return -EOPNOTSUPP;
591
592 err = dev->ethtool_ops->get_settings(dev, &cmd);
593 if (err < 0)
594 return err;
595
596 if (copy_to_user(useraddr, &cmd, sizeof(cmd)))
597 return -EFAULT;
598 return 0;
599 }
600
601 static int ethtool_set_settings(struct net_device *dev, void __user *useraddr)
602 {
603 struct ethtool_cmd cmd;
604
605 if (!dev->ethtool_ops->set_settings)
606 return -EOPNOTSUPP;
607
608 if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
609 return -EFAULT;
610
611 return dev->ethtool_ops->set_settings(dev, &cmd);
612 }
613
614 static noinline_for_stack int ethtool_get_drvinfo(struct net_device *dev,
615 void __user *useraddr)
616 {
617 struct ethtool_drvinfo info;
618 const struct ethtool_ops *ops = dev->ethtool_ops;
619
620 memset(&info, 0, sizeof(info));
621 info.cmd = ETHTOOL_GDRVINFO;
622 if (ops && ops->get_drvinfo) {
623 ops->get_drvinfo(dev, &info);
624 } else if (dev->dev.parent && dev->dev.parent->driver) {
625 strlcpy(info.bus_info, dev_name(dev->dev.parent),
626 sizeof(info.bus_info));
627 strlcpy(info.driver, dev->dev.parent->driver->name,
628 sizeof(info.driver));
629 } else {
630 return -EOPNOTSUPP;
631 }
632
633 /*
634 * this method of obtaining string set info is deprecated;
635 * Use ETHTOOL_GSSET_INFO instead.
636 */
637 if (ops && ops->get_sset_count) {
638 int rc;
639
640 rc = ops->get_sset_count(dev, ETH_SS_TEST);
641 if (rc >= 0)
642 info.testinfo_len = rc;
643 rc = ops->get_sset_count(dev, ETH_SS_STATS);
644 if (rc >= 0)
645 info.n_stats = rc;
646 rc = ops->get_sset_count(dev, ETH_SS_PRIV_FLAGS);
647 if (rc >= 0)
648 info.n_priv_flags = rc;
649 }
650 if (ops && ops->get_regs_len)
651 info.regdump_len = ops->get_regs_len(dev);
652 if (ops && ops->get_eeprom_len)
653 info.eedump_len = ops->get_eeprom_len(dev);
654
655 if (copy_to_user(useraddr, &info, sizeof(info)))
656 return -EFAULT;
657 return 0;
658 }
659
660 static noinline_for_stack int ethtool_get_sset_info(struct net_device *dev,
661 void __user *useraddr)
662 {
663 struct ethtool_sset_info info;
664 u64 sset_mask;
665 int i, idx = 0, n_bits = 0, ret, rc;
666 u32 *info_buf = NULL;
667
668 if (copy_from_user(&info, useraddr, sizeof(info)))
669 return -EFAULT;
670
671 /* store copy of mask, because we zero struct later on */
672 sset_mask = info.sset_mask;
673 if (!sset_mask)
674 return 0;
675
676 /* calculate size of return buffer */
677 n_bits = hweight64(sset_mask);
678
679 memset(&info, 0, sizeof(info));
680 info.cmd = ETHTOOL_GSSET_INFO;
681
682 info_buf = kzalloc(n_bits * sizeof(u32), GFP_USER);
683 if (!info_buf)
684 return -ENOMEM;
685
686 /*
687 * fill return buffer based on input bitmask and successful
688 * get_sset_count return
689 */
690 for (i = 0; i < 64; i++) {
691 if (!(sset_mask & (1ULL << i)))
692 continue;
693
694 rc = __ethtool_get_sset_count(dev, i);
695 if (rc >= 0) {
696 info.sset_mask |= (1ULL << i);
697 info_buf[idx++] = rc;
698 }
699 }
700
701 ret = -EFAULT;
702 if (copy_to_user(useraddr, &info, sizeof(info)))
703 goto out;
704
705 useraddr += offsetof(struct ethtool_sset_info, data);
706 if (copy_to_user(useraddr, info_buf, idx * sizeof(u32)))
707 goto out;
708
709 ret = 0;
710
711 out:
712 kfree(info_buf);
713 return ret;
714 }
715
716 static noinline_for_stack int ethtool_set_rxnfc(struct net_device *dev,
717 u32 cmd, void __user *useraddr)
718 {
719 struct ethtool_rxnfc info;
720 size_t info_size = sizeof(info);
721
722 if (!dev->ethtool_ops->set_rxnfc)
723 return -EOPNOTSUPP;
724
725 /* struct ethtool_rxnfc was originally defined for
726 * ETHTOOL_{G,S}RXFH with only the cmd, flow_type and data
727 * members. User-space might still be using that
728 * definition. */
729 if (cmd == ETHTOOL_SRXFH)
730 info_size = (offsetof(struct ethtool_rxnfc, data) +
731 sizeof(info.data));
732
733 if (copy_from_user(&info, useraddr, info_size))
734 return -EFAULT;
735
736 return dev->ethtool_ops->set_rxnfc(dev, &info);
737 }
738
739 static noinline_for_stack int ethtool_get_rxnfc(struct net_device *dev,
740 u32 cmd, void __user *useraddr)
741 {
742 struct ethtool_rxnfc info;
743 size_t info_size = sizeof(info);
744 const struct ethtool_ops *ops = dev->ethtool_ops;
745 int ret;
746 void *rule_buf = NULL;
747
748 if (!ops->get_rxnfc)
749 return -EOPNOTSUPP;
750
751 /* struct ethtool_rxnfc was originally defined for
752 * ETHTOOL_{G,S}RXFH with only the cmd, flow_type and data
753 * members. User-space might still be using that
754 * definition. */
755 if (cmd == ETHTOOL_GRXFH)
756 info_size = (offsetof(struct ethtool_rxnfc, data) +
757 sizeof(info.data));
758
759 if (copy_from_user(&info, useraddr, info_size))
760 return -EFAULT;
761
762 if (info.cmd == ETHTOOL_GRXCLSRLALL) {
763 if (info.rule_cnt > 0) {
764 if (info.rule_cnt <= KMALLOC_MAX_SIZE / sizeof(u32))
765 rule_buf = kzalloc(info.rule_cnt * sizeof(u32),
766 GFP_USER);
767 if (!rule_buf)
768 return -ENOMEM;
769 }
770 }
771
772 ret = ops->get_rxnfc(dev, &info, rule_buf);
773 if (ret < 0)
774 goto err_out;
775
776 ret = -EFAULT;
777 if (copy_to_user(useraddr, &info, info_size))
778 goto err_out;
779
780 if (rule_buf) {
781 useraddr += offsetof(struct ethtool_rxnfc, rule_locs);
782 if (copy_to_user(useraddr, rule_buf,
783 info.rule_cnt * sizeof(u32)))
784 goto err_out;
785 }
786 ret = 0;
787
788 err_out:
789 kfree(rule_buf);
790
791 return ret;
792 }
793
794 static noinline_for_stack int ethtool_get_rxfh_indir(struct net_device *dev,
795 void __user *useraddr)
796 {
797 struct ethtool_rxfh_indir *indir;
798 u32 table_size;
799 size_t full_size;
800 int ret;
801
802 if (!dev->ethtool_ops->get_rxfh_indir)
803 return -EOPNOTSUPP;
804
805 if (copy_from_user(&table_size,
806 useraddr + offsetof(struct ethtool_rxfh_indir, size),
807 sizeof(table_size)))
808 return -EFAULT;
809
810 if (table_size >
811 (KMALLOC_MAX_SIZE - sizeof(*indir)) / sizeof(*indir->ring_index))
812 return -ENOMEM;
813 full_size = sizeof(*indir) + sizeof(*indir->ring_index) * table_size;
814 indir = kzalloc(full_size, GFP_USER);
815 if (!indir)
816 return -ENOMEM;
817
818 indir->cmd = ETHTOOL_GRXFHINDIR;
819 indir->size = table_size;
820 ret = dev->ethtool_ops->get_rxfh_indir(dev, indir);
821 if (ret)
822 goto out;
823
824 if (copy_to_user(useraddr, indir, full_size))
825 ret = -EFAULT;
826
827 out:
828 kfree(indir);
829 return ret;
830 }
831
832 static noinline_for_stack int ethtool_set_rxfh_indir(struct net_device *dev,
833 void __user *useraddr)
834 {
835 struct ethtool_rxfh_indir *indir;
836 u32 table_size;
837 size_t full_size;
838 int ret;
839
840 if (!dev->ethtool_ops->set_rxfh_indir)
841 return -EOPNOTSUPP;
842
843 if (copy_from_user(&table_size,
844 useraddr + offsetof(struct ethtool_rxfh_indir, size),
845 sizeof(table_size)))
846 return -EFAULT;
847
848 if (table_size >
849 (KMALLOC_MAX_SIZE - sizeof(*indir)) / sizeof(*indir->ring_index))
850 return -ENOMEM;
851 full_size = sizeof(*indir) + sizeof(*indir->ring_index) * table_size;
852 indir = kmalloc(full_size, GFP_USER);
853 if (!indir)
854 return -ENOMEM;
855
856 if (copy_from_user(indir, useraddr, full_size)) {
857 ret = -EFAULT;
858 goto out;
859 }
860
861 ret = dev->ethtool_ops->set_rxfh_indir(dev, indir);
862
863 out:
864 kfree(indir);
865 return ret;
866 }
867
868 static void __rx_ntuple_filter_add(struct ethtool_rx_ntuple_list *list,
869 struct ethtool_rx_ntuple_flow_spec *spec,
870 struct ethtool_rx_ntuple_flow_spec_container *fsc)
871 {
872
873 /* don't add filters forever */
874 if (list->count >= ETHTOOL_MAX_NTUPLE_LIST_ENTRY) {
875 /* free the container */
876 kfree(fsc);
877 return;
878 }
879
880 /* Copy the whole filter over */
881 fsc->fs.flow_type = spec->flow_type;
882 memcpy(&fsc->fs.h_u, &spec->h_u, sizeof(spec->h_u));
883 memcpy(&fsc->fs.m_u, &spec->m_u, sizeof(spec->m_u));
884
885 fsc->fs.vlan_tag = spec->vlan_tag;
886 fsc->fs.vlan_tag_mask = spec->vlan_tag_mask;
887 fsc->fs.data = spec->data;
888 fsc->fs.data_mask = spec->data_mask;
889 fsc->fs.action = spec->action;
890
891 /* add to the list */
892 list_add_tail_rcu(&fsc->list, &list->list);
893 list->count++;
894 }
895
896 /*
897 * ethtool does not (or did not) set masks for flow parameters that are
898 * not specified, so if both value and mask are 0 then this must be
899 * treated as equivalent to a mask with all bits set. Implement that
900 * here rather than in drivers.
901 */
902 static void rx_ntuple_fix_masks(struct ethtool_rx_ntuple_flow_spec *fs)
903 {
904 struct ethtool_tcpip4_spec *entry = &fs->h_u.tcp_ip4_spec;
905 struct ethtool_tcpip4_spec *mask = &fs->m_u.tcp_ip4_spec;
906
907 if (fs->flow_type != TCP_V4_FLOW &&
908 fs->flow_type != UDP_V4_FLOW &&
909 fs->flow_type != SCTP_V4_FLOW)
910 return;
911
912 if (!(entry->ip4src | mask->ip4src))
913 mask->ip4src = htonl(0xffffffff);
914 if (!(entry->ip4dst | mask->ip4dst))
915 mask->ip4dst = htonl(0xffffffff);
916 if (!(entry->psrc | mask->psrc))
917 mask->psrc = htons(0xffff);
918 if (!(entry->pdst | mask->pdst))
919 mask->pdst = htons(0xffff);
920 if (!(entry->tos | mask->tos))
921 mask->tos = 0xff;
922 if (!(fs->vlan_tag | fs->vlan_tag_mask))
923 fs->vlan_tag_mask = 0xffff;
924 if (!(fs->data | fs->data_mask))
925 fs->data_mask = 0xffffffffffffffffULL;
926 }
927
928 static noinline_for_stack int ethtool_set_rx_ntuple(struct net_device *dev,
929 void __user *useraddr)
930 {
931 struct ethtool_rx_ntuple cmd;
932 const struct ethtool_ops *ops = dev->ethtool_ops;
933 struct ethtool_rx_ntuple_flow_spec_container *fsc = NULL;
934 int ret;
935
936 if (!ops->set_rx_ntuple)
937 return -EOPNOTSUPP;
938
939 if (!(dev->features & NETIF_F_NTUPLE))
940 return -EINVAL;
941
942 if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
943 return -EFAULT;
944
945 rx_ntuple_fix_masks(&cmd.fs);
946
947 /*
948 * Cache filter in dev struct for GET operation only if
949 * the underlying driver doesn't have its own GET operation, and
950 * only if the filter was added successfully. First make sure we
951 * can allocate the filter, then continue if successful.
952 */
953 if (!ops->get_rx_ntuple) {
954 fsc = kmalloc(sizeof(*fsc), GFP_ATOMIC);
955 if (!fsc)
956 return -ENOMEM;
957 }
958
959 ret = ops->set_rx_ntuple(dev, &cmd);
960 if (ret) {
961 kfree(fsc);
962 return ret;
963 }
964
965 if (!ops->get_rx_ntuple)
966 __rx_ntuple_filter_add(&dev->ethtool_ntuple_list, &cmd.fs, fsc);
967
968 return ret;
969 }
970
971 static int ethtool_get_rx_ntuple(struct net_device *dev, void __user *useraddr)
972 {
973 struct ethtool_gstrings gstrings;
974 const struct ethtool_ops *ops = dev->ethtool_ops;
975 struct ethtool_rx_ntuple_flow_spec_container *fsc;
976 u8 *data;
977 char *p;
978 int ret, i, num_strings = 0;
979
980 if (!ops->get_sset_count)
981 return -EOPNOTSUPP;
982
983 if (copy_from_user(&gstrings, useraddr, sizeof(gstrings)))
984 return -EFAULT;
985
986 ret = ops->get_sset_count(dev, gstrings.string_set);
987 if (ret < 0)
988 return ret;
989
990 gstrings.len = ret;
991
992 data = kzalloc(gstrings.len * ETH_GSTRING_LEN, GFP_USER);
993 if (!data)
994 return -ENOMEM;
995
996 if (ops->get_rx_ntuple) {
997 /* driver-specific filter grab */
998 ret = ops->get_rx_ntuple(dev, gstrings.string_set, data);
999 goto copy;
1000 }
1001
1002 /* default ethtool filter grab */
1003 i = 0;
1004 p = (char *)data;
1005 list_for_each_entry(fsc, &dev->ethtool_ntuple_list.list, list) {
1006 sprintf(p, "Filter %d:\n", i);
1007 p += ETH_GSTRING_LEN;
1008 num_strings++;
1009
1010 switch (fsc->fs.flow_type) {
1011 case TCP_V4_FLOW:
1012 sprintf(p, "\tFlow Type: TCP\n");
1013 p += ETH_GSTRING_LEN;
1014 num_strings++;
1015 break;
1016 case UDP_V4_FLOW:
1017 sprintf(p, "\tFlow Type: UDP\n");
1018 p += ETH_GSTRING_LEN;
1019 num_strings++;
1020 break;
1021 case SCTP_V4_FLOW:
1022 sprintf(p, "\tFlow Type: SCTP\n");
1023 p += ETH_GSTRING_LEN;
1024 num_strings++;
1025 break;
1026 case AH_ESP_V4_FLOW:
1027 sprintf(p, "\tFlow Type: AH ESP\n");
1028 p += ETH_GSTRING_LEN;
1029 num_strings++;
1030 break;
1031 case ESP_V4_FLOW:
1032 sprintf(p, "\tFlow Type: ESP\n");
1033 p += ETH_GSTRING_LEN;
1034 num_strings++;
1035 break;
1036 case IP_USER_FLOW:
1037 sprintf(p, "\tFlow Type: Raw IP\n");
1038 p += ETH_GSTRING_LEN;
1039 num_strings++;
1040 break;
1041 case IPV4_FLOW:
1042 sprintf(p, "\tFlow Type: IPv4\n");
1043 p += ETH_GSTRING_LEN;
1044 num_strings++;
1045 break;
1046 default:
1047 sprintf(p, "\tFlow Type: Unknown\n");
1048 p += ETH_GSTRING_LEN;
1049 num_strings++;
1050 goto unknown_filter;
1051 }
1052
1053 /* now the rest of the filters */
1054 switch (fsc->fs.flow_type) {
1055 case TCP_V4_FLOW:
1056 case UDP_V4_FLOW:
1057 case SCTP_V4_FLOW:
1058 sprintf(p, "\tSrc IP addr: 0x%x\n",
1059 fsc->fs.h_u.tcp_ip4_spec.ip4src);
1060 p += ETH_GSTRING_LEN;
1061 num_strings++;
1062 sprintf(p, "\tSrc IP mask: 0x%x\n",
1063 fsc->fs.m_u.tcp_ip4_spec.ip4src);
1064 p += ETH_GSTRING_LEN;
1065 num_strings++;
1066 sprintf(p, "\tDest IP addr: 0x%x\n",
1067 fsc->fs.h_u.tcp_ip4_spec.ip4dst);
1068 p += ETH_GSTRING_LEN;
1069 num_strings++;
1070 sprintf(p, "\tDest IP mask: 0x%x\n",
1071 fsc->fs.m_u.tcp_ip4_spec.ip4dst);
1072 p += ETH_GSTRING_LEN;
1073 num_strings++;
1074 sprintf(p, "\tSrc Port: %d, mask: 0x%x\n",
1075 fsc->fs.h_u.tcp_ip4_spec.psrc,
1076 fsc->fs.m_u.tcp_ip4_spec.psrc);
1077 p += ETH_GSTRING_LEN;
1078 num_strings++;
1079 sprintf(p, "\tDest Port: %d, mask: 0x%x\n",
1080 fsc->fs.h_u.tcp_ip4_spec.pdst,
1081 fsc->fs.m_u.tcp_ip4_spec.pdst);
1082 p += ETH_GSTRING_LEN;
1083 num_strings++;
1084 sprintf(p, "\tTOS: %d, mask: 0x%x\n",
1085 fsc->fs.h_u.tcp_ip4_spec.tos,
1086 fsc->fs.m_u.tcp_ip4_spec.tos);
1087 p += ETH_GSTRING_LEN;
1088 num_strings++;
1089 break;
1090 case AH_ESP_V4_FLOW:
1091 case ESP_V4_FLOW:
1092 sprintf(p, "\tSrc IP addr: 0x%x\n",
1093 fsc->fs.h_u.ah_ip4_spec.ip4src);
1094 p += ETH_GSTRING_LEN;
1095 num_strings++;
1096 sprintf(p, "\tSrc IP mask: 0x%x\n",
1097 fsc->fs.m_u.ah_ip4_spec.ip4src);
1098 p += ETH_GSTRING_LEN;
1099 num_strings++;
1100 sprintf(p, "\tDest IP addr: 0x%x\n",
1101 fsc->fs.h_u.ah_ip4_spec.ip4dst);
1102 p += ETH_GSTRING_LEN;
1103 num_strings++;
1104 sprintf(p, "\tDest IP mask: 0x%x\n",
1105 fsc->fs.m_u.ah_ip4_spec.ip4dst);
1106 p += ETH_GSTRING_LEN;
1107 num_strings++;
1108 sprintf(p, "\tSPI: %d, mask: 0x%x\n",
1109 fsc->fs.h_u.ah_ip4_spec.spi,
1110 fsc->fs.m_u.ah_ip4_spec.spi);
1111 p += ETH_GSTRING_LEN;
1112 num_strings++;
1113 sprintf(p, "\tTOS: %d, mask: 0x%x\n",
1114 fsc->fs.h_u.ah_ip4_spec.tos,
1115 fsc->fs.m_u.ah_ip4_spec.tos);
1116 p += ETH_GSTRING_LEN;
1117 num_strings++;
1118 break;
1119 case IP_USER_FLOW:
1120 sprintf(p, "\tSrc IP addr: 0x%x\n",
1121 fsc->fs.h_u.usr_ip4_spec.ip4src);
1122 p += ETH_GSTRING_LEN;
1123 num_strings++;
1124 sprintf(p, "\tSrc IP mask: 0x%x\n",
1125 fsc->fs.m_u.usr_ip4_spec.ip4src);
1126 p += ETH_GSTRING_LEN;
1127 num_strings++;
1128 sprintf(p, "\tDest IP addr: 0x%x\n",
1129 fsc->fs.h_u.usr_ip4_spec.ip4dst);
1130 p += ETH_GSTRING_LEN;
1131 num_strings++;
1132 sprintf(p, "\tDest IP mask: 0x%x\n",
1133 fsc->fs.m_u.usr_ip4_spec.ip4dst);
1134 p += ETH_GSTRING_LEN;
1135 num_strings++;
1136 break;
1137 case IPV4_FLOW:
1138 sprintf(p, "\tSrc IP addr: 0x%x\n",
1139 fsc->fs.h_u.usr_ip4_spec.ip4src);
1140 p += ETH_GSTRING_LEN;
1141 num_strings++;
1142 sprintf(p, "\tSrc IP mask: 0x%x\n",
1143 fsc->fs.m_u.usr_ip4_spec.ip4src);
1144 p += ETH_GSTRING_LEN;
1145 num_strings++;
1146 sprintf(p, "\tDest IP addr: 0x%x\n",
1147 fsc->fs.h_u.usr_ip4_spec.ip4dst);
1148 p += ETH_GSTRING_LEN;
1149 num_strings++;
1150 sprintf(p, "\tDest IP mask: 0x%x\n",
1151 fsc->fs.m_u.usr_ip4_spec.ip4dst);
1152 p += ETH_GSTRING_LEN;
1153 num_strings++;
1154 sprintf(p, "\tL4 bytes: 0x%x, mask: 0x%x\n",
1155 fsc->fs.h_u.usr_ip4_spec.l4_4_bytes,
1156 fsc->fs.m_u.usr_ip4_spec.l4_4_bytes);
1157 p += ETH_GSTRING_LEN;
1158 num_strings++;
1159 sprintf(p, "\tTOS: %d, mask: 0x%x\n",
1160 fsc->fs.h_u.usr_ip4_spec.tos,
1161 fsc->fs.m_u.usr_ip4_spec.tos);
1162 p += ETH_GSTRING_LEN;
1163 num_strings++;
1164 sprintf(p, "\tIP Version: %d, mask: 0x%x\n",
1165 fsc->fs.h_u.usr_ip4_spec.ip_ver,
1166 fsc->fs.m_u.usr_ip4_spec.ip_ver);
1167 p += ETH_GSTRING_LEN;
1168 num_strings++;
1169 sprintf(p, "\tProtocol: %d, mask: 0x%x\n",
1170 fsc->fs.h_u.usr_ip4_spec.proto,
1171 fsc->fs.m_u.usr_ip4_spec.proto);
1172 p += ETH_GSTRING_LEN;
1173 num_strings++;
1174 break;
1175 }
1176 sprintf(p, "\tVLAN: %d, mask: 0x%x\n",
1177 fsc->fs.vlan_tag, fsc->fs.vlan_tag_mask);
1178 p += ETH_GSTRING_LEN;
1179 num_strings++;
1180 sprintf(p, "\tUser-defined: 0x%Lx\n", fsc->fs.data);
1181 p += ETH_GSTRING_LEN;
1182 num_strings++;
1183 sprintf(p, "\tUser-defined mask: 0x%Lx\n", fsc->fs.data_mask);
1184 p += ETH_GSTRING_LEN;
1185 num_strings++;
1186 if (fsc->fs.action == ETHTOOL_RXNTUPLE_ACTION_DROP)
1187 sprintf(p, "\tAction: Drop\n");
1188 else
1189 sprintf(p, "\tAction: Direct to queue %d\n",
1190 fsc->fs.action);
1191 p += ETH_GSTRING_LEN;
1192 num_strings++;
1193 unknown_filter:
1194 i++;
1195 }
1196 copy:
1197 /* indicate to userspace how many strings we actually have */
1198 gstrings.len = num_strings;
1199 ret = -EFAULT;
1200 if (copy_to_user(useraddr, &gstrings, sizeof(gstrings)))
1201 goto out;
1202 useraddr += sizeof(gstrings);
1203 if (copy_to_user(useraddr, data, gstrings.len * ETH_GSTRING_LEN))
1204 goto out;
1205 ret = 0;
1206
1207 out:
1208 kfree(data);
1209 return ret;
1210 }
1211
1212 static int ethtool_get_regs(struct net_device *dev, char __user *useraddr)
1213 {
1214 struct ethtool_regs regs;
1215 const struct ethtool_ops *ops = dev->ethtool_ops;
1216 void *regbuf;
1217 int reglen, ret;
1218
1219 if (!ops->get_regs || !ops->get_regs_len)
1220 return -EOPNOTSUPP;
1221
1222 if (copy_from_user(&regs, useraddr, sizeof(regs)))
1223 return -EFAULT;
1224
1225 reglen = ops->get_regs_len(dev);
1226 if (regs.len > reglen)
1227 regs.len = reglen;
1228
1229 regbuf = vzalloc(reglen);
1230 if (reglen && !regbuf)
1231 return -ENOMEM;
1232
1233 ops->get_regs(dev, &regs, regbuf);
1234
1235 ret = -EFAULT;
1236 if (copy_to_user(useraddr, &regs, sizeof(regs)))
1237 goto out;
1238 useraddr += offsetof(struct ethtool_regs, data);
1239 if (regbuf && copy_to_user(useraddr, regbuf, regs.len))
1240 goto out;
1241 ret = 0;
1242
1243 out:
1244 vfree(regbuf);
1245 return ret;
1246 }
1247
1248 static int ethtool_reset(struct net_device *dev, char __user *useraddr)
1249 {
1250 struct ethtool_value reset;
1251 int ret;
1252
1253 if (!dev->ethtool_ops->reset)
1254 return -EOPNOTSUPP;
1255
1256 if (copy_from_user(&reset, useraddr, sizeof(reset)))
1257 return -EFAULT;
1258
1259 ret = dev->ethtool_ops->reset(dev, &reset.data);
1260 if (ret)
1261 return ret;
1262
1263 if (copy_to_user(useraddr, &reset, sizeof(reset)))
1264 return -EFAULT;
1265 return 0;
1266 }
1267
1268 static int ethtool_get_wol(struct net_device *dev, char __user *useraddr)
1269 {
1270 struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL };
1271
1272 if (!dev->ethtool_ops->get_wol)
1273 return -EOPNOTSUPP;
1274
1275 dev->ethtool_ops->get_wol(dev, &wol);
1276
1277 if (copy_to_user(useraddr, &wol, sizeof(wol)))
1278 return -EFAULT;
1279 return 0;
1280 }
1281
1282 static int ethtool_set_wol(struct net_device *dev, char __user *useraddr)
1283 {
1284 struct ethtool_wolinfo wol;
1285
1286 if (!dev->ethtool_ops->set_wol)
1287 return -EOPNOTSUPP;
1288
1289 if (copy_from_user(&wol, useraddr, sizeof(wol)))
1290 return -EFAULT;
1291
1292 return dev->ethtool_ops->set_wol(dev, &wol);
1293 }
1294
1295 static int ethtool_nway_reset(struct net_device *dev)
1296 {
1297 if (!dev->ethtool_ops->nway_reset)
1298 return -EOPNOTSUPP;
1299
1300 return dev->ethtool_ops->nway_reset(dev);
1301 }
1302
1303 static int ethtool_get_link(struct net_device *dev, char __user *useraddr)
1304 {
1305 struct ethtool_value edata = { .cmd = ETHTOOL_GLINK };
1306
1307 if (!dev->ethtool_ops->get_link)
1308 return -EOPNOTSUPP;
1309
1310 edata.data = netif_running(dev) && dev->ethtool_ops->get_link(dev);
1311
1312 if (copy_to_user(useraddr, &edata, sizeof(edata)))
1313 return -EFAULT;
1314 return 0;
1315 }
1316
1317 static int ethtool_get_eeprom(struct net_device *dev, void __user *useraddr)
1318 {
1319 struct ethtool_eeprom eeprom;
1320 const struct ethtool_ops *ops = dev->ethtool_ops;
1321 void __user *userbuf = useraddr + sizeof(eeprom);
1322 u32 bytes_remaining;
1323 u8 *data;
1324 int ret = 0;
1325
1326 if (!ops->get_eeprom || !ops->get_eeprom_len)
1327 return -EOPNOTSUPP;
1328
1329 if (copy_from_user(&eeprom, useraddr, sizeof(eeprom)))
1330 return -EFAULT;
1331
1332 /* Check for wrap and zero */
1333 if (eeprom.offset + eeprom.len <= eeprom.offset)
1334 return -EINVAL;
1335
1336 /* Check for exceeding total eeprom len */
1337 if (eeprom.offset + eeprom.len > ops->get_eeprom_len(dev))
1338 return -EINVAL;
1339
1340 data = kmalloc(PAGE_SIZE, GFP_USER);
1341 if (!data)
1342 return -ENOMEM;
1343
1344 bytes_remaining = eeprom.len;
1345 while (bytes_remaining > 0) {
1346 eeprom.len = min(bytes_remaining, (u32)PAGE_SIZE);
1347
1348 ret = ops->get_eeprom(dev, &eeprom, data);
1349 if (ret)
1350 break;
1351 if (copy_to_user(userbuf, data, eeprom.len)) {
1352 ret = -EFAULT;
1353 break;
1354 }
1355 userbuf += eeprom.len;
1356 eeprom.offset += eeprom.len;
1357 bytes_remaining -= eeprom.len;
1358 }
1359
1360 eeprom.len = userbuf - (useraddr + sizeof(eeprom));
1361 eeprom.offset -= eeprom.len;
1362 if (copy_to_user(useraddr, &eeprom, sizeof(eeprom)))
1363 ret = -EFAULT;
1364
1365 kfree(data);
1366 return ret;
1367 }
1368
1369 static int ethtool_set_eeprom(struct net_device *dev, void __user *useraddr)
1370 {
1371 struct ethtool_eeprom eeprom;
1372 const struct ethtool_ops *ops = dev->ethtool_ops;
1373 void __user *userbuf = useraddr + sizeof(eeprom);
1374 u32 bytes_remaining;
1375 u8 *data;
1376 int ret = 0;
1377
1378 if (!ops->set_eeprom || !ops->get_eeprom_len)
1379 return -EOPNOTSUPP;
1380
1381 if (copy_from_user(&eeprom, useraddr, sizeof(eeprom)))
1382 return -EFAULT;
1383
1384 /* Check for wrap and zero */
1385 if (eeprom.offset + eeprom.len <= eeprom.offset)
1386 return -EINVAL;
1387
1388 /* Check for exceeding total eeprom len */
1389 if (eeprom.offset + eeprom.len > ops->get_eeprom_len(dev))
1390 return -EINVAL;
1391
1392 data = kmalloc(PAGE_SIZE, GFP_USER);
1393 if (!data)
1394 return -ENOMEM;
1395
1396 bytes_remaining = eeprom.len;
1397 while (bytes_remaining > 0) {
1398 eeprom.len = min(bytes_remaining, (u32)PAGE_SIZE);
1399
1400 if (copy_from_user(data, userbuf, eeprom.len)) {
1401 ret = -EFAULT;
1402 break;
1403 }
1404 ret = ops->set_eeprom(dev, &eeprom, data);
1405 if (ret)
1406 break;
1407 userbuf += eeprom.len;
1408 eeprom.offset += eeprom.len;
1409 bytes_remaining -= eeprom.len;
1410 }
1411
1412 kfree(data);
1413 return ret;
1414 }
1415
1416 static noinline_for_stack int ethtool_get_coalesce(struct net_device *dev,
1417 void __user *useraddr)
1418 {
1419 struct ethtool_coalesce coalesce = { .cmd = ETHTOOL_GCOALESCE };
1420
1421 if (!dev->ethtool_ops->get_coalesce)
1422 return -EOPNOTSUPP;
1423
1424 dev->ethtool_ops->get_coalesce(dev, &coalesce);
1425
1426 if (copy_to_user(useraddr, &coalesce, sizeof(coalesce)))
1427 return -EFAULT;
1428 return 0;
1429 }
1430
1431 static noinline_for_stack int ethtool_set_coalesce(struct net_device *dev,
1432 void __user *useraddr)
1433 {
1434 struct ethtool_coalesce coalesce;
1435
1436 if (!dev->ethtool_ops->set_coalesce)
1437 return -EOPNOTSUPP;
1438
1439 if (copy_from_user(&coalesce, useraddr, sizeof(coalesce)))
1440 return -EFAULT;
1441
1442 return dev->ethtool_ops->set_coalesce(dev, &coalesce);
1443 }
1444
1445 static int ethtool_get_ringparam(struct net_device *dev, void __user *useraddr)
1446 {
1447 struct ethtool_ringparam ringparam = { .cmd = ETHTOOL_GRINGPARAM };
1448
1449 if (!dev->ethtool_ops->get_ringparam)
1450 return -EOPNOTSUPP;
1451
1452 dev->ethtool_ops->get_ringparam(dev, &ringparam);
1453
1454 if (copy_to_user(useraddr, &ringparam, sizeof(ringparam)))
1455 return -EFAULT;
1456 return 0;
1457 }
1458
1459 static int ethtool_set_ringparam(struct net_device *dev, void __user *useraddr)
1460 {
1461 struct ethtool_ringparam ringparam;
1462
1463 if (!dev->ethtool_ops->set_ringparam)
1464 return -EOPNOTSUPP;
1465
1466 if (copy_from_user(&ringparam, useraddr, sizeof(ringparam)))
1467 return -EFAULT;
1468
1469 return dev->ethtool_ops->set_ringparam(dev, &ringparam);
1470 }
1471
1472 static noinline_for_stack int ethtool_get_channels(struct net_device *dev,
1473 void __user *useraddr)
1474 {
1475 struct ethtool_channels channels = { .cmd = ETHTOOL_GCHANNELS };
1476
1477 if (!dev->ethtool_ops->get_channels)
1478 return -EOPNOTSUPP;
1479
1480 dev->ethtool_ops->get_channels(dev, &channels);
1481
1482 if (copy_to_user(useraddr, &channels, sizeof(channels)))
1483 return -EFAULT;
1484 return 0;
1485 }
1486
1487 static noinline_for_stack int ethtool_set_channels(struct net_device *dev,
1488 void __user *useraddr)
1489 {
1490 struct ethtool_channels channels;
1491
1492 if (!dev->ethtool_ops->set_channels)
1493 return -EOPNOTSUPP;
1494
1495 if (copy_from_user(&channels, useraddr, sizeof(channels)))
1496 return -EFAULT;
1497
1498 return dev->ethtool_ops->set_channels(dev, &channels);
1499 }
1500
1501 static int ethtool_get_pauseparam(struct net_device *dev, void __user *useraddr)
1502 {
1503 struct ethtool_pauseparam pauseparam = { ETHTOOL_GPAUSEPARAM };
1504
1505 if (!dev->ethtool_ops->get_pauseparam)
1506 return -EOPNOTSUPP;
1507
1508 dev->ethtool_ops->get_pauseparam(dev, &pauseparam);
1509
1510 if (copy_to_user(useraddr, &pauseparam, sizeof(pauseparam)))
1511 return -EFAULT;
1512 return 0;
1513 }
1514
1515 static int ethtool_set_pauseparam(struct net_device *dev, void __user *useraddr)
1516 {
1517 struct ethtool_pauseparam pauseparam;
1518
1519 if (!dev->ethtool_ops->set_pauseparam)
1520 return -EOPNOTSUPP;
1521
1522 if (copy_from_user(&pauseparam, useraddr, sizeof(pauseparam)))
1523 return -EFAULT;
1524
1525 return dev->ethtool_ops->set_pauseparam(dev, &pauseparam);
1526 }
1527
1528 static int __ethtool_set_sg(struct net_device *dev, u32 data)
1529 {
1530 int err;
1531
1532 if (!dev->ethtool_ops->set_sg)
1533 return -EOPNOTSUPP;
1534
1535 if (data && !(dev->features & NETIF_F_ALL_CSUM))
1536 return -EINVAL;
1537
1538 if (!data && dev->ethtool_ops->set_tso) {
1539 err = dev->ethtool_ops->set_tso(dev, 0);
1540 if (err)
1541 return err;
1542 }
1543
1544 if (!data && dev->ethtool_ops->set_ufo) {
1545 err = dev->ethtool_ops->set_ufo(dev, 0);
1546 if (err)
1547 return err;
1548 }
1549 return dev->ethtool_ops->set_sg(dev, data);
1550 }
1551
1552 static int __ethtool_set_tx_csum(struct net_device *dev, u32 data)
1553 {
1554 int err;
1555
1556 if (!dev->ethtool_ops->set_tx_csum)
1557 return -EOPNOTSUPP;
1558
1559 if (!data && dev->ethtool_ops->set_sg) {
1560 err = __ethtool_set_sg(dev, 0);
1561 if (err)
1562 return err;
1563 }
1564
1565 return dev->ethtool_ops->set_tx_csum(dev, data);
1566 }
1567
1568 static int __ethtool_set_rx_csum(struct net_device *dev, u32 data)
1569 {
1570 if (!dev->ethtool_ops->set_rx_csum)
1571 return -EOPNOTSUPP;
1572
1573 if (!data)
1574 dev->features &= ~NETIF_F_GRO;
1575
1576 return dev->ethtool_ops->set_rx_csum(dev, data);
1577 }
1578
1579 static int __ethtool_set_tso(struct net_device *dev, u32 data)
1580 {
1581 if (!dev->ethtool_ops->set_tso)
1582 return -EOPNOTSUPP;
1583
1584 if (data && !(dev->features & NETIF_F_SG))
1585 return -EINVAL;
1586
1587 return dev->ethtool_ops->set_tso(dev, data);
1588 }
1589
1590 static int __ethtool_set_ufo(struct net_device *dev, u32 data)
1591 {
1592 if (!dev->ethtool_ops->set_ufo)
1593 return -EOPNOTSUPP;
1594 if (data && !(dev->features & NETIF_F_SG))
1595 return -EINVAL;
1596 if (data && !((dev->features & NETIF_F_GEN_CSUM) ||
1597 (dev->features & (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM))
1598 == (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM)))
1599 return -EINVAL;
1600 return dev->ethtool_ops->set_ufo(dev, data);
1601 }
1602
1603 static int ethtool_self_test(struct net_device *dev, char __user *useraddr)
1604 {
1605 struct ethtool_test test;
1606 const struct ethtool_ops *ops = dev->ethtool_ops;
1607 u64 *data;
1608 int ret, test_len;
1609
1610 if (!ops->self_test || !ops->get_sset_count)
1611 return -EOPNOTSUPP;
1612
1613 test_len = ops->get_sset_count(dev, ETH_SS_TEST);
1614 if (test_len < 0)
1615 return test_len;
1616 WARN_ON(test_len == 0);
1617
1618 if (copy_from_user(&test, useraddr, sizeof(test)))
1619 return -EFAULT;
1620
1621 test.len = test_len;
1622 data = kmalloc(test_len * sizeof(u64), GFP_USER);
1623 if (!data)
1624 return -ENOMEM;
1625
1626 ops->self_test(dev, &test, data);
1627
1628 ret = -EFAULT;
1629 if (copy_to_user(useraddr, &test, sizeof(test)))
1630 goto out;
1631 useraddr += sizeof(test);
1632 if (copy_to_user(useraddr, data, test.len * sizeof(u64)))
1633 goto out;
1634 ret = 0;
1635
1636 out:
1637 kfree(data);
1638 return ret;
1639 }
1640
1641 static int ethtool_get_strings(struct net_device *dev, void __user *useraddr)
1642 {
1643 struct ethtool_gstrings gstrings;
1644 u8 *data;
1645 int ret;
1646
1647 if (copy_from_user(&gstrings, useraddr, sizeof(gstrings)))
1648 return -EFAULT;
1649
1650 ret = __ethtool_get_sset_count(dev, gstrings.string_set);
1651 if (ret < 0)
1652 return ret;
1653
1654 gstrings.len = ret;
1655
1656 data = kmalloc(gstrings.len * ETH_GSTRING_LEN, GFP_USER);
1657 if (!data)
1658 return -ENOMEM;
1659
1660 __ethtool_get_strings(dev, gstrings.string_set, data);
1661
1662 ret = -EFAULT;
1663 if (copy_to_user(useraddr, &gstrings, sizeof(gstrings)))
1664 goto out;
1665 useraddr += sizeof(gstrings);
1666 if (copy_to_user(useraddr, data, gstrings.len * ETH_GSTRING_LEN))
1667 goto out;
1668 ret = 0;
1669
1670 out:
1671 kfree(data);
1672 return ret;
1673 }
1674
1675 static int ethtool_phys_id(struct net_device *dev, void __user *useraddr)
1676 {
1677 struct ethtool_value id;
1678 static bool busy;
1679 int rc;
1680
1681 if (!dev->ethtool_ops->set_phys_id)
1682 return -EOPNOTSUPP;
1683
1684 if (busy)
1685 return -EBUSY;
1686
1687 if (copy_from_user(&id, useraddr, sizeof(id)))
1688 return -EFAULT;
1689
1690 rc = dev->ethtool_ops->set_phys_id(dev, ETHTOOL_ID_ACTIVE);
1691 if (rc < 0)
1692 return rc;
1693
1694 /* Drop the RTNL lock while waiting, but prevent reentry or
1695 * removal of the device.
1696 */
1697 busy = true;
1698 dev_hold(dev);
1699 rtnl_unlock();
1700
1701 if (rc == 0) {
1702 /* Driver will handle this itself */
1703 schedule_timeout_interruptible(
1704 id.data ? (id.data * HZ) : MAX_SCHEDULE_TIMEOUT);
1705 } else {
1706 /* Driver expects to be called at twice the frequency in rc */
1707 int n = rc * 2, i, interval = HZ / n;
1708
1709 /* Count down seconds */
1710 do {
1711 /* Count down iterations per second */
1712 i = n;
1713 do {
1714 rtnl_lock();
1715 rc = dev->ethtool_ops->set_phys_id(dev,
1716 (i & 1) ? ETHTOOL_ID_OFF : ETHTOOL_ID_ON);
1717 rtnl_unlock();
1718 if (rc)
1719 break;
1720 schedule_timeout_interruptible(interval);
1721 } while (!signal_pending(current) && --i != 0);
1722 } while (!signal_pending(current) &&
1723 (id.data == 0 || --id.data != 0));
1724 }
1725
1726 rtnl_lock();
1727 dev_put(dev);
1728 busy = false;
1729
1730 (void)dev->ethtool_ops->set_phys_id(dev, ETHTOOL_ID_INACTIVE);
1731 return rc;
1732 }
1733
1734 static int ethtool_get_stats(struct net_device *dev, void __user *useraddr)
1735 {
1736 struct ethtool_stats stats;
1737 const struct ethtool_ops *ops = dev->ethtool_ops;
1738 u64 *data;
1739 int ret, n_stats;
1740
1741 if (!ops->get_ethtool_stats || !ops->get_sset_count)
1742 return -EOPNOTSUPP;
1743
1744 n_stats = ops->get_sset_count(dev, ETH_SS_STATS);
1745 if (n_stats < 0)
1746 return n_stats;
1747 WARN_ON(n_stats == 0);
1748
1749 if (copy_from_user(&stats, useraddr, sizeof(stats)))
1750 return -EFAULT;
1751
1752 stats.n_stats = n_stats;
1753 data = kmalloc(n_stats * sizeof(u64), GFP_USER);
1754 if (!data)
1755 return -ENOMEM;
1756
1757 ops->get_ethtool_stats(dev, &stats, data);
1758
1759 ret = -EFAULT;
1760 if (copy_to_user(useraddr, &stats, sizeof(stats)))
1761 goto out;
1762 useraddr += sizeof(stats);
1763 if (copy_to_user(useraddr, data, stats.n_stats * sizeof(u64)))
1764 goto out;
1765 ret = 0;
1766
1767 out:
1768 kfree(data);
1769 return ret;
1770 }
1771
1772 static int ethtool_get_perm_addr(struct net_device *dev, void __user *useraddr)
1773 {
1774 struct ethtool_perm_addr epaddr;
1775
1776 if (copy_from_user(&epaddr, useraddr, sizeof(epaddr)))
1777 return -EFAULT;
1778
1779 if (epaddr.size < dev->addr_len)
1780 return -ETOOSMALL;
1781 epaddr.size = dev->addr_len;
1782
1783 if (copy_to_user(useraddr, &epaddr, sizeof(epaddr)))
1784 return -EFAULT;
1785 useraddr += sizeof(epaddr);
1786 if (copy_to_user(useraddr, dev->perm_addr, epaddr.size))
1787 return -EFAULT;
1788 return 0;
1789 }
1790
1791 static int ethtool_get_value(struct net_device *dev, char __user *useraddr,
1792 u32 cmd, u32 (*actor)(struct net_device *))
1793 {
1794 struct ethtool_value edata = { .cmd = cmd };
1795
1796 if (!actor)
1797 return -EOPNOTSUPP;
1798
1799 edata.data = actor(dev);
1800
1801 if (copy_to_user(useraddr, &edata, sizeof(edata)))
1802 return -EFAULT;
1803 return 0;
1804 }
1805
1806 static int ethtool_set_value_void(struct net_device *dev, char __user *useraddr,
1807 void (*actor)(struct net_device *, u32))
1808 {
1809 struct ethtool_value edata;
1810
1811 if (!actor)
1812 return -EOPNOTSUPP;
1813
1814 if (copy_from_user(&edata, useraddr, sizeof(edata)))
1815 return -EFAULT;
1816
1817 actor(dev, edata.data);
1818 return 0;
1819 }
1820
1821 static int ethtool_set_value(struct net_device *dev, char __user *useraddr,
1822 int (*actor)(struct net_device *, u32))
1823 {
1824 struct ethtool_value edata;
1825
1826 if (!actor)
1827 return -EOPNOTSUPP;
1828
1829 if (copy_from_user(&edata, useraddr, sizeof(edata)))
1830 return -EFAULT;
1831
1832 return actor(dev, edata.data);
1833 }
1834
1835 static noinline_for_stack int ethtool_flash_device(struct net_device *dev,
1836 char __user *useraddr)
1837 {
1838 struct ethtool_flash efl;
1839
1840 if (copy_from_user(&efl, useraddr, sizeof(efl)))
1841 return -EFAULT;
1842
1843 if (!dev->ethtool_ops->flash_device)
1844 return -EOPNOTSUPP;
1845
1846 return dev->ethtool_ops->flash_device(dev, &efl);
1847 }
1848
1849 static int ethtool_set_dump(struct net_device *dev,
1850 void __user *useraddr)
1851 {
1852 struct ethtool_dump dump;
1853
1854 if (!dev->ethtool_ops->set_dump)
1855 return -EOPNOTSUPP;
1856
1857 if (copy_from_user(&dump, useraddr, sizeof(dump)))
1858 return -EFAULT;
1859
1860 return dev->ethtool_ops->set_dump(dev, &dump);
1861 }
1862
1863 static int ethtool_get_dump_flag(struct net_device *dev,
1864 void __user *useraddr)
1865 {
1866 int ret;
1867 struct ethtool_dump dump;
1868 const struct ethtool_ops *ops = dev->ethtool_ops;
1869
1870 if (!dev->ethtool_ops->get_dump_flag)
1871 return -EOPNOTSUPP;
1872
1873 if (copy_from_user(&dump, useraddr, sizeof(dump)))
1874 return -EFAULT;
1875
1876 ret = ops->get_dump_flag(dev, &dump);
1877 if (ret)
1878 return ret;
1879
1880 if (copy_to_user(useraddr, &dump, sizeof(dump)))
1881 return -EFAULT;
1882 return 0;
1883 }
1884
1885 static int ethtool_get_dump_data(struct net_device *dev,
1886 void __user *useraddr)
1887 {
1888 int ret;
1889 __u32 len;
1890 struct ethtool_dump dump, tmp;
1891 const struct ethtool_ops *ops = dev->ethtool_ops;
1892 void *data = NULL;
1893
1894 if (!dev->ethtool_ops->get_dump_data ||
1895 !dev->ethtool_ops->get_dump_flag)
1896 return -EOPNOTSUPP;
1897
1898 if (copy_from_user(&dump, useraddr, sizeof(dump)))
1899 return -EFAULT;
1900
1901 memset(&tmp, 0, sizeof(tmp));
1902 tmp.cmd = ETHTOOL_GET_DUMP_FLAG;
1903 ret = ops->get_dump_flag(dev, &tmp);
1904 if (ret)
1905 return ret;
1906
1907 len = (tmp.len > dump.len) ? dump.len : tmp.len;
1908 if (!len)
1909 return -EFAULT;
1910
1911 data = vzalloc(tmp.len);
1912 if (!data)
1913 return -ENOMEM;
1914 ret = ops->get_dump_data(dev, &dump, data);
1915 if (ret)
1916 goto out;
1917
1918 if (copy_to_user(useraddr, &dump, sizeof(dump))) {
1919 ret = -EFAULT;
1920 goto out;
1921 }
1922 useraddr += offsetof(struct ethtool_dump, data);
1923 if (copy_to_user(useraddr, data, len))
1924 ret = -EFAULT;
1925 out:
1926 vfree(data);
1927 return ret;
1928 }
1929
1930 /* The main entry point in this file. Called from net/core/dev.c */
1931
1932 int dev_ethtool(struct net *net, struct ifreq *ifr)
1933 {
1934 struct net_device *dev = __dev_get_by_name(net, ifr->ifr_name);
1935 void __user *useraddr = ifr->ifr_data;
1936 u32 ethcmd;
1937 int rc;
1938 u32 old_features;
1939
1940 if (!dev || !netif_device_present(dev))
1941 return -ENODEV;
1942
1943 if (copy_from_user(&ethcmd, useraddr, sizeof(ethcmd)))
1944 return -EFAULT;
1945
1946 if (!dev->ethtool_ops) {
1947 /* ETHTOOL_GDRVINFO does not require any driver support.
1948 * It is also unprivileged and does not change anything,
1949 * so we can take a shortcut to it. */
1950 if (ethcmd == ETHTOOL_GDRVINFO)
1951 return ethtool_get_drvinfo(dev, useraddr);
1952 else
1953 return -EOPNOTSUPP;
1954 }
1955
1956 /* Allow some commands to be done by anyone */
1957 switch (ethcmd) {
1958 case ETHTOOL_GSET:
1959 case ETHTOOL_GDRVINFO:
1960 case ETHTOOL_GMSGLVL:
1961 case ETHTOOL_GCOALESCE:
1962 case ETHTOOL_GRINGPARAM:
1963 case ETHTOOL_GPAUSEPARAM:
1964 case ETHTOOL_GRXCSUM:
1965 case ETHTOOL_GTXCSUM:
1966 case ETHTOOL_GSG:
1967 case ETHTOOL_GSTRINGS:
1968 case ETHTOOL_GTSO:
1969 case ETHTOOL_GPERMADDR:
1970 case ETHTOOL_GUFO:
1971 case ETHTOOL_GGSO:
1972 case ETHTOOL_GGRO:
1973 case ETHTOOL_GFLAGS:
1974 case ETHTOOL_GPFLAGS:
1975 case ETHTOOL_GRXFH:
1976 case ETHTOOL_GRXRINGS:
1977 case ETHTOOL_GRXCLSRLCNT:
1978 case ETHTOOL_GRXCLSRULE:
1979 case ETHTOOL_GRXCLSRLALL:
1980 case ETHTOOL_GFEATURES:
1981 break;
1982 default:
1983 if (!capable(CAP_NET_ADMIN))
1984 return -EPERM;
1985 }
1986
1987 if (dev->ethtool_ops->begin) {
1988 rc = dev->ethtool_ops->begin(dev);
1989 if (rc < 0)
1990 return rc;
1991 }
1992 old_features = dev->features;
1993
1994 switch (ethcmd) {
1995 case ETHTOOL_GSET:
1996 rc = ethtool_get_settings(dev, useraddr);
1997 break;
1998 case ETHTOOL_SSET:
1999 rc = ethtool_set_settings(dev, useraddr);
2000 break;
2001 case ETHTOOL_GDRVINFO:
2002 rc = ethtool_get_drvinfo(dev, useraddr);
2003 break;
2004 case ETHTOOL_GREGS:
2005 rc = ethtool_get_regs(dev, useraddr);
2006 break;
2007 case ETHTOOL_GWOL:
2008 rc = ethtool_get_wol(dev, useraddr);
2009 break;
2010 case ETHTOOL_SWOL:
2011 rc = ethtool_set_wol(dev, useraddr);
2012 break;
2013 case ETHTOOL_GMSGLVL:
2014 rc = ethtool_get_value(dev, useraddr, ethcmd,
2015 dev->ethtool_ops->get_msglevel);
2016 break;
2017 case ETHTOOL_SMSGLVL:
2018 rc = ethtool_set_value_void(dev, useraddr,
2019 dev->ethtool_ops->set_msglevel);
2020 break;
2021 case ETHTOOL_NWAY_RST:
2022 rc = ethtool_nway_reset(dev);
2023 break;
2024 case ETHTOOL_GLINK:
2025 rc = ethtool_get_link(dev, useraddr);
2026 break;
2027 case ETHTOOL_GEEPROM:
2028 rc = ethtool_get_eeprom(dev, useraddr);
2029 break;
2030 case ETHTOOL_SEEPROM:
2031 rc = ethtool_set_eeprom(dev, useraddr);
2032 break;
2033 case ETHTOOL_GCOALESCE:
2034 rc = ethtool_get_coalesce(dev, useraddr);
2035 break;
2036 case ETHTOOL_SCOALESCE:
2037 rc = ethtool_set_coalesce(dev, useraddr);
2038 break;
2039 case ETHTOOL_GRINGPARAM:
2040 rc = ethtool_get_ringparam(dev, useraddr);
2041 break;
2042 case ETHTOOL_SRINGPARAM:
2043 rc = ethtool_set_ringparam(dev, useraddr);
2044 break;
2045 case ETHTOOL_GPAUSEPARAM:
2046 rc = ethtool_get_pauseparam(dev, useraddr);
2047 break;
2048 case ETHTOOL_SPAUSEPARAM:
2049 rc = ethtool_set_pauseparam(dev, useraddr);
2050 break;
2051 case ETHTOOL_TEST:
2052 rc = ethtool_self_test(dev, useraddr);
2053 break;
2054 case ETHTOOL_GSTRINGS:
2055 rc = ethtool_get_strings(dev, useraddr);
2056 break;
2057 case ETHTOOL_PHYS_ID:
2058 rc = ethtool_phys_id(dev, useraddr);
2059 break;
2060 case ETHTOOL_GSTATS:
2061 rc = ethtool_get_stats(dev, useraddr);
2062 break;
2063 case ETHTOOL_GPERMADDR:
2064 rc = ethtool_get_perm_addr(dev, useraddr);
2065 break;
2066 case ETHTOOL_GFLAGS:
2067 rc = ethtool_get_value(dev, useraddr, ethcmd,
2068 (dev->ethtool_ops->get_flags ?
2069 dev->ethtool_ops->get_flags :
2070 ethtool_op_get_flags));
2071 break;
2072 case ETHTOOL_SFLAGS:
2073 rc = ethtool_set_value(dev, useraddr, __ethtool_set_flags);
2074 break;
2075 case ETHTOOL_GPFLAGS:
2076 rc = ethtool_get_value(dev, useraddr, ethcmd,
2077 dev->ethtool_ops->get_priv_flags);
2078 break;
2079 case ETHTOOL_SPFLAGS:
2080 rc = ethtool_set_value(dev, useraddr,
2081 dev->ethtool_ops->set_priv_flags);
2082 break;
2083 case ETHTOOL_GRXFH:
2084 case ETHTOOL_GRXRINGS:
2085 case ETHTOOL_GRXCLSRLCNT:
2086 case ETHTOOL_GRXCLSRULE:
2087 case ETHTOOL_GRXCLSRLALL:
2088 rc = ethtool_get_rxnfc(dev, ethcmd, useraddr);
2089 break;
2090 case ETHTOOL_SRXFH:
2091 case ETHTOOL_SRXCLSRLDEL:
2092 case ETHTOOL_SRXCLSRLINS:
2093 rc = ethtool_set_rxnfc(dev, ethcmd, useraddr);
2094 break;
2095 case ETHTOOL_FLASHDEV:
2096 rc = ethtool_flash_device(dev, useraddr);
2097 break;
2098 case ETHTOOL_RESET:
2099 rc = ethtool_reset(dev, useraddr);
2100 break;
2101 case ETHTOOL_SRXNTUPLE:
2102 rc = ethtool_set_rx_ntuple(dev, useraddr);
2103 break;
2104 case ETHTOOL_GRXNTUPLE:
2105 rc = ethtool_get_rx_ntuple(dev, useraddr);
2106 break;
2107 case ETHTOOL_GSSET_INFO:
2108 rc = ethtool_get_sset_info(dev, useraddr);
2109 break;
2110 case ETHTOOL_GRXFHINDIR:
2111 rc = ethtool_get_rxfh_indir(dev, useraddr);
2112 break;
2113 case ETHTOOL_SRXFHINDIR:
2114 rc = ethtool_set_rxfh_indir(dev, useraddr);
2115 break;
2116 case ETHTOOL_GFEATURES:
2117 rc = ethtool_get_features(dev, useraddr);
2118 break;
2119 case ETHTOOL_SFEATURES:
2120 rc = ethtool_set_features(dev, useraddr);
2121 break;
2122 case ETHTOOL_GTXCSUM:
2123 case ETHTOOL_GRXCSUM:
2124 case ETHTOOL_GSG:
2125 case ETHTOOL_GTSO:
2126 case ETHTOOL_GUFO:
2127 case ETHTOOL_GGSO:
2128 case ETHTOOL_GGRO:
2129 rc = ethtool_get_one_feature(dev, useraddr, ethcmd);
2130 break;
2131 case ETHTOOL_STXCSUM:
2132 case ETHTOOL_SRXCSUM:
2133 case ETHTOOL_SSG:
2134 case ETHTOOL_STSO:
2135 case ETHTOOL_SUFO:
2136 case ETHTOOL_SGSO:
2137 case ETHTOOL_SGRO:
2138 rc = ethtool_set_one_feature(dev, useraddr, ethcmd);
2139 break;
2140 case ETHTOOL_GCHANNELS:
2141 rc = ethtool_get_channels(dev, useraddr);
2142 break;
2143 case ETHTOOL_SCHANNELS:
2144 rc = ethtool_set_channels(dev, useraddr);
2145 break;
2146 case ETHTOOL_SET_DUMP:
2147 rc = ethtool_set_dump(dev, useraddr);
2148 break;
2149 case ETHTOOL_GET_DUMP_FLAG:
2150 rc = ethtool_get_dump_flag(dev, useraddr);
2151 break;
2152 case ETHTOOL_GET_DUMP_DATA:
2153 rc = ethtool_get_dump_data(dev, useraddr);
2154 break;
2155 default:
2156 rc = -EOPNOTSUPP;
2157 }
2158
2159 if (dev->ethtool_ops->complete)
2160 dev->ethtool_ops->complete(dev);
2161
2162 if (old_features != dev->features)
2163 netdev_features_change(dev);
2164
2165 return rc;
2166 }
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree