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ethtool: ensure channel counts are within bounds during SCHANNELS
[mirror_ubuntu-bionic-kernel.git] / net / core / ethtool.c
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/net_tstamp.h>
21 #include <linux/phy.h>
22 #include <linux/bitops.h>
23 #include <linux/uaccess.h>
24 #include <linux/vmalloc.h>
25 #include <linux/slab.h>
26 #include <linux/rtnetlink.h>
27 #include <linux/sched.h>
28 #include <linux/net.h>
29
30 /*
31 * Some useful ethtool_ops methods that're device independent.
32 * If we find that all drivers want to do the same thing here,
33 * we can turn these into dev_() function calls.
34 */
35
36 u32 ethtool_op_get_link(struct net_device *dev)
37 {
38 return netif_carrier_ok(dev) ? 1 : 0;
39 }
40 EXPORT_SYMBOL(ethtool_op_get_link);
41
42 int ethtool_op_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info)
43 {
44 info->so_timestamping =
45 SOF_TIMESTAMPING_TX_SOFTWARE |
46 SOF_TIMESTAMPING_RX_SOFTWARE |
47 SOF_TIMESTAMPING_SOFTWARE;
48 info->phc_index = -1;
49 return 0;
50 }
51 EXPORT_SYMBOL(ethtool_op_get_ts_info);
52
53 /* Handlers for each ethtool command */
54
55 #define ETHTOOL_DEV_FEATURE_WORDS ((NETDEV_FEATURE_COUNT + 31) / 32)
56
57 static const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN] = {
58 [NETIF_F_SG_BIT] = "tx-scatter-gather",
59 [NETIF_F_IP_CSUM_BIT] = "tx-checksum-ipv4",
60 [NETIF_F_HW_CSUM_BIT] = "tx-checksum-ip-generic",
61 [NETIF_F_IPV6_CSUM_BIT] = "tx-checksum-ipv6",
62 [NETIF_F_HIGHDMA_BIT] = "highdma",
63 [NETIF_F_FRAGLIST_BIT] = "tx-scatter-gather-fraglist",
64 [NETIF_F_HW_VLAN_CTAG_TX_BIT] = "tx-vlan-hw-insert",
65
66 [NETIF_F_HW_VLAN_CTAG_RX_BIT] = "rx-vlan-hw-parse",
67 [NETIF_F_HW_VLAN_CTAG_FILTER_BIT] = "rx-vlan-filter",
68 [NETIF_F_HW_VLAN_STAG_TX_BIT] = "tx-vlan-stag-hw-insert",
69 [NETIF_F_HW_VLAN_STAG_RX_BIT] = "rx-vlan-stag-hw-parse",
70 [NETIF_F_HW_VLAN_STAG_FILTER_BIT] = "rx-vlan-stag-filter",
71 [NETIF_F_VLAN_CHALLENGED_BIT] = "vlan-challenged",
72 [NETIF_F_GSO_BIT] = "tx-generic-segmentation",
73 [NETIF_F_LLTX_BIT] = "tx-lockless",
74 [NETIF_F_NETNS_LOCAL_BIT] = "netns-local",
75 [NETIF_F_GRO_BIT] = "rx-gro",
76 [NETIF_F_LRO_BIT] = "rx-lro",
77
78 [NETIF_F_TSO_BIT] = "tx-tcp-segmentation",
79 [NETIF_F_UFO_BIT] = "tx-udp-fragmentation",
80 [NETIF_F_GSO_ROBUST_BIT] = "tx-gso-robust",
81 [NETIF_F_TSO_ECN_BIT] = "tx-tcp-ecn-segmentation",
82 [NETIF_F_TSO6_BIT] = "tx-tcp6-segmentation",
83 [NETIF_F_FSO_BIT] = "tx-fcoe-segmentation",
84 [NETIF_F_GSO_GRE_BIT] = "tx-gre-segmentation",
85 [NETIF_F_GSO_IPIP_BIT] = "tx-ipip-segmentation",
86 [NETIF_F_GSO_SIT_BIT] = "tx-sit-segmentation",
87 [NETIF_F_GSO_UDP_TUNNEL_BIT] = "tx-udp_tnl-segmentation",
88
89 [NETIF_F_FCOE_CRC_BIT] = "tx-checksum-fcoe-crc",
90 [NETIF_F_SCTP_CRC_BIT] = "tx-checksum-sctp",
91 [NETIF_F_FCOE_MTU_BIT] = "fcoe-mtu",
92 [NETIF_F_NTUPLE_BIT] = "rx-ntuple-filter",
93 [NETIF_F_RXHASH_BIT] = "rx-hashing",
94 [NETIF_F_RXCSUM_BIT] = "rx-checksum",
95 [NETIF_F_NOCACHE_COPY_BIT] = "tx-nocache-copy",
96 [NETIF_F_LOOPBACK_BIT] = "loopback",
97 [NETIF_F_RXFCS_BIT] = "rx-fcs",
98 [NETIF_F_RXALL_BIT] = "rx-all",
99 [NETIF_F_HW_L2FW_DOFFLOAD_BIT] = "l2-fwd-offload",
100 [NETIF_F_BUSY_POLL_BIT] = "busy-poll",
101 };
102
103 static const char
104 rss_hash_func_strings[ETH_RSS_HASH_FUNCS_COUNT][ETH_GSTRING_LEN] = {
105 [ETH_RSS_HASH_TOP_BIT] = "toeplitz",
106 [ETH_RSS_HASH_XOR_BIT] = "xor",
107 };
108
109 static const char
110 tunable_strings[__ETHTOOL_TUNABLE_COUNT][ETH_GSTRING_LEN] = {
111 [ETHTOOL_ID_UNSPEC] = "Unspec",
112 [ETHTOOL_RX_COPYBREAK] = "rx-copybreak",
113 [ETHTOOL_TX_COPYBREAK] = "tx-copybreak",
114 };
115
116 static int ethtool_get_features(struct net_device *dev, void __user *useraddr)
117 {
118 struct ethtool_gfeatures cmd = {
119 .cmd = ETHTOOL_GFEATURES,
120 .size = ETHTOOL_DEV_FEATURE_WORDS,
121 };
122 struct ethtool_get_features_block features[ETHTOOL_DEV_FEATURE_WORDS];
123 u32 __user *sizeaddr;
124 u32 copy_size;
125 int i;
126
127 /* in case feature bits run out again */
128 BUILD_BUG_ON(ETHTOOL_DEV_FEATURE_WORDS * sizeof(u32) > sizeof(netdev_features_t));
129
130 for (i = 0; i < ETHTOOL_DEV_FEATURE_WORDS; ++i) {
131 features[i].available = (u32)(dev->hw_features >> (32 * i));
132 features[i].requested = (u32)(dev->wanted_features >> (32 * i));
133 features[i].active = (u32)(dev->features >> (32 * i));
134 features[i].never_changed =
135 (u32)(NETIF_F_NEVER_CHANGE >> (32 * i));
136 }
137
138 sizeaddr = useraddr + offsetof(struct ethtool_gfeatures, size);
139 if (get_user(copy_size, sizeaddr))
140 return -EFAULT;
141
142 if (copy_size > ETHTOOL_DEV_FEATURE_WORDS)
143 copy_size = ETHTOOL_DEV_FEATURE_WORDS;
144
145 if (copy_to_user(useraddr, &cmd, sizeof(cmd)))
146 return -EFAULT;
147 useraddr += sizeof(cmd);
148 if (copy_to_user(useraddr, features, copy_size * sizeof(*features)))
149 return -EFAULT;
150
151 return 0;
152 }
153
154 static int ethtool_set_features(struct net_device *dev, void __user *useraddr)
155 {
156 struct ethtool_sfeatures cmd;
157 struct ethtool_set_features_block features[ETHTOOL_DEV_FEATURE_WORDS];
158 netdev_features_t wanted = 0, valid = 0;
159 int i, ret = 0;
160
161 if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
162 return -EFAULT;
163 useraddr += sizeof(cmd);
164
165 if (cmd.size != ETHTOOL_DEV_FEATURE_WORDS)
166 return -EINVAL;
167
168 if (copy_from_user(features, useraddr, sizeof(features)))
169 return -EFAULT;
170
171 for (i = 0; i < ETHTOOL_DEV_FEATURE_WORDS; ++i) {
172 valid |= (netdev_features_t)features[i].valid << (32 * i);
173 wanted |= (netdev_features_t)features[i].requested << (32 * i);
174 }
175
176 if (valid & ~NETIF_F_ETHTOOL_BITS)
177 return -EINVAL;
178
179 if (valid & ~dev->hw_features) {
180 valid &= dev->hw_features;
181 ret |= ETHTOOL_F_UNSUPPORTED;
182 }
183
184 dev->wanted_features &= ~valid;
185 dev->wanted_features |= wanted & valid;
186 __netdev_update_features(dev);
187
188 if ((dev->wanted_features ^ dev->features) & valid)
189 ret |= ETHTOOL_F_WISH;
190
191 return ret;
192 }
193
194 static int phy_get_sset_count(struct phy_device *phydev)
195 {
196 int ret;
197
198 if (phydev->drv->get_sset_count &&
199 phydev->drv->get_strings &&
200 phydev->drv->get_stats) {
201 mutex_lock(&phydev->lock);
202 ret = phydev->drv->get_sset_count(phydev);
203 mutex_unlock(&phydev->lock);
204
205 return ret;
206 }
207
208 return -EOPNOTSUPP;
209 }
210
211 static int __ethtool_get_sset_count(struct net_device *dev, int sset)
212 {
213 const struct ethtool_ops *ops = dev->ethtool_ops;
214
215 if (sset == ETH_SS_FEATURES)
216 return ARRAY_SIZE(netdev_features_strings);
217
218 if (sset == ETH_SS_RSS_HASH_FUNCS)
219 return ARRAY_SIZE(rss_hash_func_strings);
220
221 if (sset == ETH_SS_TUNABLES)
222 return ARRAY_SIZE(tunable_strings);
223
224 if (sset == ETH_SS_PHY_STATS) {
225 if (dev->phydev)
226 return phy_get_sset_count(dev->phydev);
227 else
228 return -EOPNOTSUPP;
229 }
230
231 if (ops->get_sset_count && ops->get_strings)
232 return ops->get_sset_count(dev, sset);
233 else
234 return -EOPNOTSUPP;
235 }
236
237 static void __ethtool_get_strings(struct net_device *dev,
238 u32 stringset, u8 *data)
239 {
240 const struct ethtool_ops *ops = dev->ethtool_ops;
241
242 if (stringset == ETH_SS_FEATURES)
243 memcpy(data, netdev_features_strings,
244 sizeof(netdev_features_strings));
245 else if (stringset == ETH_SS_RSS_HASH_FUNCS)
246 memcpy(data, rss_hash_func_strings,
247 sizeof(rss_hash_func_strings));
248 else if (stringset == ETH_SS_TUNABLES)
249 memcpy(data, tunable_strings, sizeof(tunable_strings));
250 else if (stringset == ETH_SS_PHY_STATS) {
251 struct phy_device *phydev = dev->phydev;
252
253 if (phydev) {
254 mutex_lock(&phydev->lock);
255 phydev->drv->get_strings(phydev, data);
256 mutex_unlock(&phydev->lock);
257 } else {
258 return;
259 }
260 } else
261 /* ops->get_strings is valid because checked earlier */
262 ops->get_strings(dev, stringset, data);
263 }
264
265 static netdev_features_t ethtool_get_feature_mask(u32 eth_cmd)
266 {
267 /* feature masks of legacy discrete ethtool ops */
268
269 switch (eth_cmd) {
270 case ETHTOOL_GTXCSUM:
271 case ETHTOOL_STXCSUM:
272 return NETIF_F_CSUM_MASK | NETIF_F_SCTP_CRC;
273 case ETHTOOL_GRXCSUM:
274 case ETHTOOL_SRXCSUM:
275 return NETIF_F_RXCSUM;
276 case ETHTOOL_GSG:
277 case ETHTOOL_SSG:
278 return NETIF_F_SG;
279 case ETHTOOL_GTSO:
280 case ETHTOOL_STSO:
281 return NETIF_F_ALL_TSO;
282 case ETHTOOL_GUFO:
283 case ETHTOOL_SUFO:
284 return NETIF_F_UFO;
285 case ETHTOOL_GGSO:
286 case ETHTOOL_SGSO:
287 return NETIF_F_GSO;
288 case ETHTOOL_GGRO:
289 case ETHTOOL_SGRO:
290 return NETIF_F_GRO;
291 default:
292 BUG();
293 }
294 }
295
296 static int ethtool_get_one_feature(struct net_device *dev,
297 char __user *useraddr, u32 ethcmd)
298 {
299 netdev_features_t mask = ethtool_get_feature_mask(ethcmd);
300 struct ethtool_value edata = {
301 .cmd = ethcmd,
302 .data = !!(dev->features & mask),
303 };
304
305 if (copy_to_user(useraddr, &edata, sizeof(edata)))
306 return -EFAULT;
307 return 0;
308 }
309
310 static int ethtool_set_one_feature(struct net_device *dev,
311 void __user *useraddr, u32 ethcmd)
312 {
313 struct ethtool_value edata;
314 netdev_features_t mask;
315
316 if (copy_from_user(&edata, useraddr, sizeof(edata)))
317 return -EFAULT;
318
319 mask = ethtool_get_feature_mask(ethcmd);
320 mask &= dev->hw_features;
321 if (!mask)
322 return -EOPNOTSUPP;
323
324 if (edata.data)
325 dev->wanted_features |= mask;
326 else
327 dev->wanted_features &= ~mask;
328
329 __netdev_update_features(dev);
330
331 return 0;
332 }
333
334 #define ETH_ALL_FLAGS (ETH_FLAG_LRO | ETH_FLAG_RXVLAN | ETH_FLAG_TXVLAN | \
335 ETH_FLAG_NTUPLE | ETH_FLAG_RXHASH)
336 #define ETH_ALL_FEATURES (NETIF_F_LRO | NETIF_F_HW_VLAN_CTAG_RX | \
337 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_NTUPLE | \
338 NETIF_F_RXHASH)
339
340 static u32 __ethtool_get_flags(struct net_device *dev)
341 {
342 u32 flags = 0;
343
344 if (dev->features & NETIF_F_LRO)
345 flags |= ETH_FLAG_LRO;
346 if (dev->features & NETIF_F_HW_VLAN_CTAG_RX)
347 flags |= ETH_FLAG_RXVLAN;
348 if (dev->features & NETIF_F_HW_VLAN_CTAG_TX)
349 flags |= ETH_FLAG_TXVLAN;
350 if (dev->features & NETIF_F_NTUPLE)
351 flags |= ETH_FLAG_NTUPLE;
352 if (dev->features & NETIF_F_RXHASH)
353 flags |= ETH_FLAG_RXHASH;
354
355 return flags;
356 }
357
358 static int __ethtool_set_flags(struct net_device *dev, u32 data)
359 {
360 netdev_features_t features = 0, changed;
361
362 if (data & ~ETH_ALL_FLAGS)
363 return -EINVAL;
364
365 if (data & ETH_FLAG_LRO)
366 features |= NETIF_F_LRO;
367 if (data & ETH_FLAG_RXVLAN)
368 features |= NETIF_F_HW_VLAN_CTAG_RX;
369 if (data & ETH_FLAG_TXVLAN)
370 features |= NETIF_F_HW_VLAN_CTAG_TX;
371 if (data & ETH_FLAG_NTUPLE)
372 features |= NETIF_F_NTUPLE;
373 if (data & ETH_FLAG_RXHASH)
374 features |= NETIF_F_RXHASH;
375
376 /* allow changing only bits set in hw_features */
377 changed = (features ^ dev->features) & ETH_ALL_FEATURES;
378 if (changed & ~dev->hw_features)
379 return (changed & dev->hw_features) ? -EINVAL : -EOPNOTSUPP;
380
381 dev->wanted_features =
382 (dev->wanted_features & ~changed) | (features & changed);
383
384 __netdev_update_features(dev);
385
386 return 0;
387 }
388
389 int __ethtool_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
390 {
391 ASSERT_RTNL();
392
393 if (!dev->ethtool_ops->get_settings)
394 return -EOPNOTSUPP;
395
396 memset(cmd, 0, sizeof(struct ethtool_cmd));
397 cmd->cmd = ETHTOOL_GSET;
398 return dev->ethtool_ops->get_settings(dev, cmd);
399 }
400 EXPORT_SYMBOL(__ethtool_get_settings);
401
402 static int ethtool_get_settings(struct net_device *dev, void __user *useraddr)
403 {
404 int err;
405 struct ethtool_cmd cmd;
406
407 err = __ethtool_get_settings(dev, &cmd);
408 if (err < 0)
409 return err;
410
411 if (copy_to_user(useraddr, &cmd, sizeof(cmd)))
412 return -EFAULT;
413 return 0;
414 }
415
416 static int ethtool_set_settings(struct net_device *dev, void __user *useraddr)
417 {
418 struct ethtool_cmd cmd;
419
420 if (!dev->ethtool_ops->set_settings)
421 return -EOPNOTSUPP;
422
423 if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
424 return -EFAULT;
425
426 return dev->ethtool_ops->set_settings(dev, &cmd);
427 }
428
429 static noinline_for_stack int ethtool_get_drvinfo(struct net_device *dev,
430 void __user *useraddr)
431 {
432 struct ethtool_drvinfo info;
433 const struct ethtool_ops *ops = dev->ethtool_ops;
434
435 memset(&info, 0, sizeof(info));
436 info.cmd = ETHTOOL_GDRVINFO;
437 if (ops->get_drvinfo) {
438 ops->get_drvinfo(dev, &info);
439 } else if (dev->dev.parent && dev->dev.parent->driver) {
440 strlcpy(info.bus_info, dev_name(dev->dev.parent),
441 sizeof(info.bus_info));
442 strlcpy(info.driver, dev->dev.parent->driver->name,
443 sizeof(info.driver));
444 } else {
445 return -EOPNOTSUPP;
446 }
447
448 /*
449 * this method of obtaining string set info is deprecated;
450 * Use ETHTOOL_GSSET_INFO instead.
451 */
452 if (ops->get_sset_count) {
453 int rc;
454
455 rc = ops->get_sset_count(dev, ETH_SS_TEST);
456 if (rc >= 0)
457 info.testinfo_len = rc;
458 rc = ops->get_sset_count(dev, ETH_SS_STATS);
459 if (rc >= 0)
460 info.n_stats = rc;
461 rc = ops->get_sset_count(dev, ETH_SS_PRIV_FLAGS);
462 if (rc >= 0)
463 info.n_priv_flags = rc;
464 }
465 if (ops->get_regs_len)
466 info.regdump_len = ops->get_regs_len(dev);
467 if (ops->get_eeprom_len)
468 info.eedump_len = ops->get_eeprom_len(dev);
469
470 if (copy_to_user(useraddr, &info, sizeof(info)))
471 return -EFAULT;
472 return 0;
473 }
474
475 static noinline_for_stack int ethtool_get_sset_info(struct net_device *dev,
476 void __user *useraddr)
477 {
478 struct ethtool_sset_info info;
479 u64 sset_mask;
480 int i, idx = 0, n_bits = 0, ret, rc;
481 u32 *info_buf = NULL;
482
483 if (copy_from_user(&info, useraddr, sizeof(info)))
484 return -EFAULT;
485
486 /* store copy of mask, because we zero struct later on */
487 sset_mask = info.sset_mask;
488 if (!sset_mask)
489 return 0;
490
491 /* calculate size of return buffer */
492 n_bits = hweight64(sset_mask);
493
494 memset(&info, 0, sizeof(info));
495 info.cmd = ETHTOOL_GSSET_INFO;
496
497 info_buf = kzalloc(n_bits * sizeof(u32), GFP_USER);
498 if (!info_buf)
499 return -ENOMEM;
500
501 /*
502 * fill return buffer based on input bitmask and successful
503 * get_sset_count return
504 */
505 for (i = 0; i < 64; i++) {
506 if (!(sset_mask & (1ULL << i)))
507 continue;
508
509 rc = __ethtool_get_sset_count(dev, i);
510 if (rc >= 0) {
511 info.sset_mask |= (1ULL << i);
512 info_buf[idx++] = rc;
513 }
514 }
515
516 ret = -EFAULT;
517 if (copy_to_user(useraddr, &info, sizeof(info)))
518 goto out;
519
520 useraddr += offsetof(struct ethtool_sset_info, data);
521 if (copy_to_user(useraddr, info_buf, idx * sizeof(u32)))
522 goto out;
523
524 ret = 0;
525
526 out:
527 kfree(info_buf);
528 return ret;
529 }
530
531 static noinline_for_stack int ethtool_set_rxnfc(struct net_device *dev,
532 u32 cmd, void __user *useraddr)
533 {
534 struct ethtool_rxnfc info;
535 size_t info_size = sizeof(info);
536 int rc;
537
538 if (!dev->ethtool_ops->set_rxnfc)
539 return -EOPNOTSUPP;
540
541 /* struct ethtool_rxnfc was originally defined for
542 * ETHTOOL_{G,S}RXFH with only the cmd, flow_type and data
543 * members. User-space might still be using that
544 * definition. */
545 if (cmd == ETHTOOL_SRXFH)
546 info_size = (offsetof(struct ethtool_rxnfc, data) +
547 sizeof(info.data));
548
549 if (copy_from_user(&info, useraddr, info_size))
550 return -EFAULT;
551
552 rc = dev->ethtool_ops->set_rxnfc(dev, &info);
553 if (rc)
554 return rc;
555
556 if (cmd == ETHTOOL_SRXCLSRLINS &&
557 copy_to_user(useraddr, &info, info_size))
558 return -EFAULT;
559
560 return 0;
561 }
562
563 static noinline_for_stack int ethtool_get_rxnfc(struct net_device *dev,
564 u32 cmd, void __user *useraddr)
565 {
566 struct ethtool_rxnfc info;
567 size_t info_size = sizeof(info);
568 const struct ethtool_ops *ops = dev->ethtool_ops;
569 int ret;
570 void *rule_buf = NULL;
571
572 if (!ops->get_rxnfc)
573 return -EOPNOTSUPP;
574
575 /* struct ethtool_rxnfc was originally defined for
576 * ETHTOOL_{G,S}RXFH with only the cmd, flow_type and data
577 * members. User-space might still be using that
578 * definition. */
579 if (cmd == ETHTOOL_GRXFH)
580 info_size = (offsetof(struct ethtool_rxnfc, data) +
581 sizeof(info.data));
582
583 if (copy_from_user(&info, useraddr, info_size))
584 return -EFAULT;
585
586 if (info.cmd == ETHTOOL_GRXCLSRLALL) {
587 if (info.rule_cnt > 0) {
588 if (info.rule_cnt <= KMALLOC_MAX_SIZE / sizeof(u32))
589 rule_buf = kzalloc(info.rule_cnt * sizeof(u32),
590 GFP_USER);
591 if (!rule_buf)
592 return -ENOMEM;
593 }
594 }
595
596 ret = ops->get_rxnfc(dev, &info, rule_buf);
597 if (ret < 0)
598 goto err_out;
599
600 ret = -EFAULT;
601 if (copy_to_user(useraddr, &info, info_size))
602 goto err_out;
603
604 if (rule_buf) {
605 useraddr += offsetof(struct ethtool_rxnfc, rule_locs);
606 if (copy_to_user(useraddr, rule_buf,
607 info.rule_cnt * sizeof(u32)))
608 goto err_out;
609 }
610 ret = 0;
611
612 err_out:
613 kfree(rule_buf);
614
615 return ret;
616 }
617
618 static int ethtool_copy_validate_indir(u32 *indir, void __user *useraddr,
619 struct ethtool_rxnfc *rx_rings,
620 u32 size)
621 {
622 int i;
623
624 if (copy_from_user(indir, useraddr, size * sizeof(indir[0])))
625 return -EFAULT;
626
627 /* Validate ring indices */
628 for (i = 0; i < size; i++)
629 if (indir[i] >= rx_rings->data)
630 return -EINVAL;
631
632 return 0;
633 }
634
635 u8 netdev_rss_key[NETDEV_RSS_KEY_LEN] __read_mostly;
636
637 void netdev_rss_key_fill(void *buffer, size_t len)
638 {
639 BUG_ON(len > sizeof(netdev_rss_key));
640 net_get_random_once(netdev_rss_key, sizeof(netdev_rss_key));
641 memcpy(buffer, netdev_rss_key, len);
642 }
643 EXPORT_SYMBOL(netdev_rss_key_fill);
644
645 static int ethtool_get_max_rxfh_channel(struct net_device *dev, u32 *max)
646 {
647 u32 dev_size, current_max = 0;
648 u32 *indir;
649 int ret;
650
651 if (!dev->ethtool_ops->get_rxfh_indir_size ||
652 !dev->ethtool_ops->get_rxfh)
653 return -EOPNOTSUPP;
654 dev_size = dev->ethtool_ops->get_rxfh_indir_size(dev);
655 if (dev_size == 0)
656 return -EOPNOTSUPP;
657
658 indir = kcalloc(dev_size, sizeof(indir[0]), GFP_USER);
659 if (!indir)
660 return -ENOMEM;
661
662 ret = dev->ethtool_ops->get_rxfh(dev, indir, NULL, NULL);
663 if (ret)
664 goto out;
665
666 while (dev_size--)
667 current_max = max(current_max, indir[dev_size]);
668
669 *max = current_max;
670
671 out:
672 kfree(indir);
673 return ret;
674 }
675
676 static noinline_for_stack int ethtool_get_rxfh_indir(struct net_device *dev,
677 void __user *useraddr)
678 {
679 u32 user_size, dev_size;
680 u32 *indir;
681 int ret;
682
683 if (!dev->ethtool_ops->get_rxfh_indir_size ||
684 !dev->ethtool_ops->get_rxfh)
685 return -EOPNOTSUPP;
686 dev_size = dev->ethtool_ops->get_rxfh_indir_size(dev);
687 if (dev_size == 0)
688 return -EOPNOTSUPP;
689
690 if (copy_from_user(&user_size,
691 useraddr + offsetof(struct ethtool_rxfh_indir, size),
692 sizeof(user_size)))
693 return -EFAULT;
694
695 if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh_indir, size),
696 &dev_size, sizeof(dev_size)))
697 return -EFAULT;
698
699 /* If the user buffer size is 0, this is just a query for the
700 * device table size. Otherwise, if it's smaller than the
701 * device table size it's an error.
702 */
703 if (user_size < dev_size)
704 return user_size == 0 ? 0 : -EINVAL;
705
706 indir = kcalloc(dev_size, sizeof(indir[0]), GFP_USER);
707 if (!indir)
708 return -ENOMEM;
709
710 ret = dev->ethtool_ops->get_rxfh(dev, indir, NULL, NULL);
711 if (ret)
712 goto out;
713
714 if (copy_to_user(useraddr +
715 offsetof(struct ethtool_rxfh_indir, ring_index[0]),
716 indir, dev_size * sizeof(indir[0])))
717 ret = -EFAULT;
718
719 out:
720 kfree(indir);
721 return ret;
722 }
723
724 static noinline_for_stack int ethtool_set_rxfh_indir(struct net_device *dev,
725 void __user *useraddr)
726 {
727 struct ethtool_rxnfc rx_rings;
728 u32 user_size, dev_size, i;
729 u32 *indir;
730 const struct ethtool_ops *ops = dev->ethtool_ops;
731 int ret;
732 u32 ringidx_offset = offsetof(struct ethtool_rxfh_indir, ring_index[0]);
733
734 if (!ops->get_rxfh_indir_size || !ops->set_rxfh ||
735 !ops->get_rxnfc)
736 return -EOPNOTSUPP;
737
738 dev_size = ops->get_rxfh_indir_size(dev);
739 if (dev_size == 0)
740 return -EOPNOTSUPP;
741
742 if (copy_from_user(&user_size,
743 useraddr + offsetof(struct ethtool_rxfh_indir, size),
744 sizeof(user_size)))
745 return -EFAULT;
746
747 if (user_size != 0 && user_size != dev_size)
748 return -EINVAL;
749
750 indir = kcalloc(dev_size, sizeof(indir[0]), GFP_USER);
751 if (!indir)
752 return -ENOMEM;
753
754 rx_rings.cmd = ETHTOOL_GRXRINGS;
755 ret = ops->get_rxnfc(dev, &rx_rings, NULL);
756 if (ret)
757 goto out;
758
759 if (user_size == 0) {
760 for (i = 0; i < dev_size; i++)
761 indir[i] = ethtool_rxfh_indir_default(i, rx_rings.data);
762 } else {
763 ret = ethtool_copy_validate_indir(indir,
764 useraddr + ringidx_offset,
765 &rx_rings,
766 dev_size);
767 if (ret)
768 goto out;
769 }
770
771 ret = ops->set_rxfh(dev, indir, NULL, ETH_RSS_HASH_NO_CHANGE);
772 if (ret)
773 goto out;
774
775 /* indicate whether rxfh was set to default */
776 if (user_size == 0)
777 dev->priv_flags &= ~IFF_RXFH_CONFIGURED;
778 else
779 dev->priv_flags |= IFF_RXFH_CONFIGURED;
780
781 out:
782 kfree(indir);
783 return ret;
784 }
785
786 static noinline_for_stack int ethtool_get_rxfh(struct net_device *dev,
787 void __user *useraddr)
788 {
789 int ret;
790 const struct ethtool_ops *ops = dev->ethtool_ops;
791 u32 user_indir_size, user_key_size;
792 u32 dev_indir_size = 0, dev_key_size = 0;
793 struct ethtool_rxfh rxfh;
794 u32 total_size;
795 u32 indir_bytes;
796 u32 *indir = NULL;
797 u8 dev_hfunc = 0;
798 u8 *hkey = NULL;
799 u8 *rss_config;
800
801 if (!ops->get_rxfh)
802 return -EOPNOTSUPP;
803
804 if (ops->get_rxfh_indir_size)
805 dev_indir_size = ops->get_rxfh_indir_size(dev);
806 if (ops->get_rxfh_key_size)
807 dev_key_size = ops->get_rxfh_key_size(dev);
808
809 if (copy_from_user(&rxfh, useraddr, sizeof(rxfh)))
810 return -EFAULT;
811 user_indir_size = rxfh.indir_size;
812 user_key_size = rxfh.key_size;
813
814 /* Check that reserved fields are 0 for now */
815 if (rxfh.rss_context || rxfh.rsvd8[0] || rxfh.rsvd8[1] ||
816 rxfh.rsvd8[2] || rxfh.rsvd32)
817 return -EINVAL;
818
819 rxfh.indir_size = dev_indir_size;
820 rxfh.key_size = dev_key_size;
821 if (copy_to_user(useraddr, &rxfh, sizeof(rxfh)))
822 return -EFAULT;
823
824 if ((user_indir_size && (user_indir_size != dev_indir_size)) ||
825 (user_key_size && (user_key_size != dev_key_size)))
826 return -EINVAL;
827
828 indir_bytes = user_indir_size * sizeof(indir[0]);
829 total_size = indir_bytes + user_key_size;
830 rss_config = kzalloc(total_size, GFP_USER);
831 if (!rss_config)
832 return -ENOMEM;
833
834 if (user_indir_size)
835 indir = (u32 *)rss_config;
836
837 if (user_key_size)
838 hkey = rss_config + indir_bytes;
839
840 ret = dev->ethtool_ops->get_rxfh(dev, indir, hkey, &dev_hfunc);
841 if (ret)
842 goto out;
843
844 if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh, hfunc),
845 &dev_hfunc, sizeof(rxfh.hfunc))) {
846 ret = -EFAULT;
847 } else if (copy_to_user(useraddr +
848 offsetof(struct ethtool_rxfh, rss_config[0]),
849 rss_config, total_size)) {
850 ret = -EFAULT;
851 }
852 out:
853 kfree(rss_config);
854
855 return ret;
856 }
857
858 static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev,
859 void __user *useraddr)
860 {
861 int ret;
862 const struct ethtool_ops *ops = dev->ethtool_ops;
863 struct ethtool_rxnfc rx_rings;
864 struct ethtool_rxfh rxfh;
865 u32 dev_indir_size = 0, dev_key_size = 0, i;
866 u32 *indir = NULL, indir_bytes = 0;
867 u8 *hkey = NULL;
868 u8 *rss_config;
869 u32 rss_cfg_offset = offsetof(struct ethtool_rxfh, rss_config[0]);
870
871 if (!ops->get_rxnfc || !ops->set_rxfh)
872 return -EOPNOTSUPP;
873
874 if (ops->get_rxfh_indir_size)
875 dev_indir_size = ops->get_rxfh_indir_size(dev);
876 if (ops->get_rxfh_key_size)
877 dev_key_size = ops->get_rxfh_key_size(dev);
878
879 if (copy_from_user(&rxfh, useraddr, sizeof(rxfh)))
880 return -EFAULT;
881
882 /* Check that reserved fields are 0 for now */
883 if (rxfh.rss_context || rxfh.rsvd8[0] || rxfh.rsvd8[1] ||
884 rxfh.rsvd8[2] || rxfh.rsvd32)
885 return -EINVAL;
886
887 /* If either indir, hash key or function is valid, proceed further.
888 * Must request at least one change: indir size, hash key or function.
889 */
890 if ((rxfh.indir_size &&
891 rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE &&
892 rxfh.indir_size != dev_indir_size) ||
893 (rxfh.key_size && (rxfh.key_size != dev_key_size)) ||
894 (rxfh.indir_size == ETH_RXFH_INDIR_NO_CHANGE &&
895 rxfh.key_size == 0 && rxfh.hfunc == ETH_RSS_HASH_NO_CHANGE))
896 return -EINVAL;
897
898 if (rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE)
899 indir_bytes = dev_indir_size * sizeof(indir[0]);
900
901 rss_config = kzalloc(indir_bytes + rxfh.key_size, GFP_USER);
902 if (!rss_config)
903 return -ENOMEM;
904
905 rx_rings.cmd = ETHTOOL_GRXRINGS;
906 ret = ops->get_rxnfc(dev, &rx_rings, NULL);
907 if (ret)
908 goto out;
909
910 /* rxfh.indir_size == 0 means reset the indir table to default.
911 * rxfh.indir_size == ETH_RXFH_INDIR_NO_CHANGE means leave it unchanged.
912 */
913 if (rxfh.indir_size &&
914 rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE) {
915 indir = (u32 *)rss_config;
916 ret = ethtool_copy_validate_indir(indir,
917 useraddr + rss_cfg_offset,
918 &rx_rings,
919 rxfh.indir_size);
920 if (ret)
921 goto out;
922 } else if (rxfh.indir_size == 0) {
923 indir = (u32 *)rss_config;
924 for (i = 0; i < dev_indir_size; i++)
925 indir[i] = ethtool_rxfh_indir_default(i, rx_rings.data);
926 }
927
928 if (rxfh.key_size) {
929 hkey = rss_config + indir_bytes;
930 if (copy_from_user(hkey,
931 useraddr + rss_cfg_offset + indir_bytes,
932 rxfh.key_size)) {
933 ret = -EFAULT;
934 goto out;
935 }
936 }
937
938 ret = ops->set_rxfh(dev, indir, hkey, rxfh.hfunc);
939 if (ret)
940 goto out;
941
942 /* indicate whether rxfh was set to default */
943 if (rxfh.indir_size == 0)
944 dev->priv_flags &= ~IFF_RXFH_CONFIGURED;
945 else if (rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE)
946 dev->priv_flags |= IFF_RXFH_CONFIGURED;
947
948 out:
949 kfree(rss_config);
950 return ret;
951 }
952
953 static int ethtool_get_regs(struct net_device *dev, char __user *useraddr)
954 {
955 struct ethtool_regs regs;
956 const struct ethtool_ops *ops = dev->ethtool_ops;
957 void *regbuf;
958 int reglen, ret;
959
960 if (!ops->get_regs || !ops->get_regs_len)
961 return -EOPNOTSUPP;
962
963 if (copy_from_user(&regs, useraddr, sizeof(regs)))
964 return -EFAULT;
965
966 reglen = ops->get_regs_len(dev);
967 if (regs.len > reglen)
968 regs.len = reglen;
969
970 regbuf = vzalloc(reglen);
971 if (reglen && !regbuf)
972 return -ENOMEM;
973
974 ops->get_regs(dev, &regs, regbuf);
975
976 ret = -EFAULT;
977 if (copy_to_user(useraddr, &regs, sizeof(regs)))
978 goto out;
979 useraddr += offsetof(struct ethtool_regs, data);
980 if (regbuf && copy_to_user(useraddr, regbuf, regs.len))
981 goto out;
982 ret = 0;
983
984 out:
985 vfree(regbuf);
986 return ret;
987 }
988
989 static int ethtool_reset(struct net_device *dev, char __user *useraddr)
990 {
991 struct ethtool_value reset;
992 int ret;
993
994 if (!dev->ethtool_ops->reset)
995 return -EOPNOTSUPP;
996
997 if (copy_from_user(&reset, useraddr, sizeof(reset)))
998 return -EFAULT;
999
1000 ret = dev->ethtool_ops->reset(dev, &reset.data);
1001 if (ret)
1002 return ret;
1003
1004 if (copy_to_user(useraddr, &reset, sizeof(reset)))
1005 return -EFAULT;
1006 return 0;
1007 }
1008
1009 static int ethtool_get_wol(struct net_device *dev, char __user *useraddr)
1010 {
1011 struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL };
1012
1013 if (!dev->ethtool_ops->get_wol)
1014 return -EOPNOTSUPP;
1015
1016 dev->ethtool_ops->get_wol(dev, &wol);
1017
1018 if (copy_to_user(useraddr, &wol, sizeof(wol)))
1019 return -EFAULT;
1020 return 0;
1021 }
1022
1023 static int ethtool_set_wol(struct net_device *dev, char __user *useraddr)
1024 {
1025 struct ethtool_wolinfo wol;
1026
1027 if (!dev->ethtool_ops->set_wol)
1028 return -EOPNOTSUPP;
1029
1030 if (copy_from_user(&wol, useraddr, sizeof(wol)))
1031 return -EFAULT;
1032
1033 return dev->ethtool_ops->set_wol(dev, &wol);
1034 }
1035
1036 static int ethtool_get_eee(struct net_device *dev, char __user *useraddr)
1037 {
1038 struct ethtool_eee edata;
1039 int rc;
1040
1041 if (!dev->ethtool_ops->get_eee)
1042 return -EOPNOTSUPP;
1043
1044 memset(&edata, 0, sizeof(struct ethtool_eee));
1045 edata.cmd = ETHTOOL_GEEE;
1046 rc = dev->ethtool_ops->get_eee(dev, &edata);
1047
1048 if (rc)
1049 return rc;
1050
1051 if (copy_to_user(useraddr, &edata, sizeof(edata)))
1052 return -EFAULT;
1053
1054 return 0;
1055 }
1056
1057 static int ethtool_set_eee(struct net_device *dev, char __user *useraddr)
1058 {
1059 struct ethtool_eee edata;
1060
1061 if (!dev->ethtool_ops->set_eee)
1062 return -EOPNOTSUPP;
1063
1064 if (copy_from_user(&edata, useraddr, sizeof(edata)))
1065 return -EFAULT;
1066
1067 return dev->ethtool_ops->set_eee(dev, &edata);
1068 }
1069
1070 static int ethtool_nway_reset(struct net_device *dev)
1071 {
1072 if (!dev->ethtool_ops->nway_reset)
1073 return -EOPNOTSUPP;
1074
1075 return dev->ethtool_ops->nway_reset(dev);
1076 }
1077
1078 static int ethtool_get_link(struct net_device *dev, char __user *useraddr)
1079 {
1080 struct ethtool_value edata = { .cmd = ETHTOOL_GLINK };
1081
1082 if (!dev->ethtool_ops->get_link)
1083 return -EOPNOTSUPP;
1084
1085 edata.data = netif_running(dev) && dev->ethtool_ops->get_link(dev);
1086
1087 if (copy_to_user(useraddr, &edata, sizeof(edata)))
1088 return -EFAULT;
1089 return 0;
1090 }
1091
1092 static int ethtool_get_any_eeprom(struct net_device *dev, void __user *useraddr,
1093 int (*getter)(struct net_device *,
1094 struct ethtool_eeprom *, u8 *),
1095 u32 total_len)
1096 {
1097 struct ethtool_eeprom eeprom;
1098 void __user *userbuf = useraddr + sizeof(eeprom);
1099 u32 bytes_remaining;
1100 u8 *data;
1101 int ret = 0;
1102
1103 if (copy_from_user(&eeprom, useraddr, sizeof(eeprom)))
1104 return -EFAULT;
1105
1106 /* Check for wrap and zero */
1107 if (eeprom.offset + eeprom.len <= eeprom.offset)
1108 return -EINVAL;
1109
1110 /* Check for exceeding total eeprom len */
1111 if (eeprom.offset + eeprom.len > total_len)
1112 return -EINVAL;
1113
1114 data = kmalloc(PAGE_SIZE, GFP_USER);
1115 if (!data)
1116 return -ENOMEM;
1117
1118 bytes_remaining = eeprom.len;
1119 while (bytes_remaining > 0) {
1120 eeprom.len = min(bytes_remaining, (u32)PAGE_SIZE);
1121
1122 ret = getter(dev, &eeprom, data);
1123 if (ret)
1124 break;
1125 if (copy_to_user(userbuf, data, eeprom.len)) {
1126 ret = -EFAULT;
1127 break;
1128 }
1129 userbuf += eeprom.len;
1130 eeprom.offset += eeprom.len;
1131 bytes_remaining -= eeprom.len;
1132 }
1133
1134 eeprom.len = userbuf - (useraddr + sizeof(eeprom));
1135 eeprom.offset -= eeprom.len;
1136 if (copy_to_user(useraddr, &eeprom, sizeof(eeprom)))
1137 ret = -EFAULT;
1138
1139 kfree(data);
1140 return ret;
1141 }
1142
1143 static int ethtool_get_eeprom(struct net_device *dev, void __user *useraddr)
1144 {
1145 const struct ethtool_ops *ops = dev->ethtool_ops;
1146
1147 if (!ops->get_eeprom || !ops->get_eeprom_len ||
1148 !ops->get_eeprom_len(dev))
1149 return -EOPNOTSUPP;
1150
1151 return ethtool_get_any_eeprom(dev, useraddr, ops->get_eeprom,
1152 ops->get_eeprom_len(dev));
1153 }
1154
1155 static int ethtool_set_eeprom(struct net_device *dev, void __user *useraddr)
1156 {
1157 struct ethtool_eeprom eeprom;
1158 const struct ethtool_ops *ops = dev->ethtool_ops;
1159 void __user *userbuf = useraddr + sizeof(eeprom);
1160 u32 bytes_remaining;
1161 u8 *data;
1162 int ret = 0;
1163
1164 if (!ops->set_eeprom || !ops->get_eeprom_len ||
1165 !ops->get_eeprom_len(dev))
1166 return -EOPNOTSUPP;
1167
1168 if (copy_from_user(&eeprom, useraddr, sizeof(eeprom)))
1169 return -EFAULT;
1170
1171 /* Check for wrap and zero */
1172 if (eeprom.offset + eeprom.len <= eeprom.offset)
1173 return -EINVAL;
1174
1175 /* Check for exceeding total eeprom len */
1176 if (eeprom.offset + eeprom.len > ops->get_eeprom_len(dev))
1177 return -EINVAL;
1178
1179 data = kmalloc(PAGE_SIZE, GFP_USER);
1180 if (!data)
1181 return -ENOMEM;
1182
1183 bytes_remaining = eeprom.len;
1184 while (bytes_remaining > 0) {
1185 eeprom.len = min(bytes_remaining, (u32)PAGE_SIZE);
1186
1187 if (copy_from_user(data, userbuf, eeprom.len)) {
1188 ret = -EFAULT;
1189 break;
1190 }
1191 ret = ops->set_eeprom(dev, &eeprom, data);
1192 if (ret)
1193 break;
1194 userbuf += eeprom.len;
1195 eeprom.offset += eeprom.len;
1196 bytes_remaining -= eeprom.len;
1197 }
1198
1199 kfree(data);
1200 return ret;
1201 }
1202
1203 static noinline_for_stack int ethtool_get_coalesce(struct net_device *dev,
1204 void __user *useraddr)
1205 {
1206 struct ethtool_coalesce coalesce = { .cmd = ETHTOOL_GCOALESCE };
1207
1208 if (!dev->ethtool_ops->get_coalesce)
1209 return -EOPNOTSUPP;
1210
1211 dev->ethtool_ops->get_coalesce(dev, &coalesce);
1212
1213 if (copy_to_user(useraddr, &coalesce, sizeof(coalesce)))
1214 return -EFAULT;
1215 return 0;
1216 }
1217
1218 static noinline_for_stack int ethtool_set_coalesce(struct net_device *dev,
1219 void __user *useraddr)
1220 {
1221 struct ethtool_coalesce coalesce;
1222
1223 if (!dev->ethtool_ops->set_coalesce)
1224 return -EOPNOTSUPP;
1225
1226 if (copy_from_user(&coalesce, useraddr, sizeof(coalesce)))
1227 return -EFAULT;
1228
1229 return dev->ethtool_ops->set_coalesce(dev, &coalesce);
1230 }
1231
1232 static int ethtool_get_ringparam(struct net_device *dev, void __user *useraddr)
1233 {
1234 struct ethtool_ringparam ringparam = { .cmd = ETHTOOL_GRINGPARAM };
1235
1236 if (!dev->ethtool_ops->get_ringparam)
1237 return -EOPNOTSUPP;
1238
1239 dev->ethtool_ops->get_ringparam(dev, &ringparam);
1240
1241 if (copy_to_user(useraddr, &ringparam, sizeof(ringparam)))
1242 return -EFAULT;
1243 return 0;
1244 }
1245
1246 static int ethtool_set_ringparam(struct net_device *dev, void __user *useraddr)
1247 {
1248 struct ethtool_ringparam ringparam;
1249
1250 if (!dev->ethtool_ops->set_ringparam)
1251 return -EOPNOTSUPP;
1252
1253 if (copy_from_user(&ringparam, useraddr, sizeof(ringparam)))
1254 return -EFAULT;
1255
1256 return dev->ethtool_ops->set_ringparam(dev, &ringparam);
1257 }
1258
1259 static noinline_for_stack int ethtool_get_channels(struct net_device *dev,
1260 void __user *useraddr)
1261 {
1262 struct ethtool_channels channels = { .cmd = ETHTOOL_GCHANNELS };
1263
1264 if (!dev->ethtool_ops->get_channels)
1265 return -EOPNOTSUPP;
1266
1267 dev->ethtool_ops->get_channels(dev, &channels);
1268
1269 if (copy_to_user(useraddr, &channels, sizeof(channels)))
1270 return -EFAULT;
1271 return 0;
1272 }
1273
1274 static noinline_for_stack int ethtool_set_channels(struct net_device *dev,
1275 void __user *useraddr)
1276 {
1277 struct ethtool_channels channels, max;
1278 u32 max_rx_in_use = 0;
1279
1280 if (!dev->ethtool_ops->set_channels || !dev->ethtool_ops->get_channels)
1281 return -EOPNOTSUPP;
1282
1283 if (copy_from_user(&channels, useraddr, sizeof(channels)))
1284 return -EFAULT;
1285
1286 dev->ethtool_ops->get_channels(dev, &max);
1287
1288 /* ensure new counts are within the maximums */
1289 if ((channels.rx_count > max.max_rx) ||
1290 (channels.tx_count > max.max_tx) ||
1291 (channels.combined_count > max.max_combined) ||
1292 (channels.other_count > max.max_other))
1293 return -EINVAL;
1294
1295 /* ensure the new Rx count fits within the configured Rx flow
1296 * indirection table settings */
1297 if (netif_is_rxfh_configured(dev) &&
1298 !ethtool_get_max_rxfh_channel(dev, &max_rx_in_use) &&
1299 (channels.combined_count + channels.rx_count) <= max_rx_in_use)
1300 return -EINVAL;
1301
1302 return dev->ethtool_ops->set_channels(dev, &channels);
1303 }
1304
1305 static int ethtool_get_pauseparam(struct net_device *dev, void __user *useraddr)
1306 {
1307 struct ethtool_pauseparam pauseparam = { ETHTOOL_GPAUSEPARAM };
1308
1309 if (!dev->ethtool_ops->get_pauseparam)
1310 return -EOPNOTSUPP;
1311
1312 dev->ethtool_ops->get_pauseparam(dev, &pauseparam);
1313
1314 if (copy_to_user(useraddr, &pauseparam, sizeof(pauseparam)))
1315 return -EFAULT;
1316 return 0;
1317 }
1318
1319 static int ethtool_set_pauseparam(struct net_device *dev, void __user *useraddr)
1320 {
1321 struct ethtool_pauseparam pauseparam;
1322
1323 if (!dev->ethtool_ops->set_pauseparam)
1324 return -EOPNOTSUPP;
1325
1326 if (copy_from_user(&pauseparam, useraddr, sizeof(pauseparam)))
1327 return -EFAULT;
1328
1329 return dev->ethtool_ops->set_pauseparam(dev, &pauseparam);
1330 }
1331
1332 static int ethtool_self_test(struct net_device *dev, char __user *useraddr)
1333 {
1334 struct ethtool_test test;
1335 const struct ethtool_ops *ops = dev->ethtool_ops;
1336 u64 *data;
1337 int ret, test_len;
1338
1339 if (!ops->self_test || !ops->get_sset_count)
1340 return -EOPNOTSUPP;
1341
1342 test_len = ops->get_sset_count(dev, ETH_SS_TEST);
1343 if (test_len < 0)
1344 return test_len;
1345 WARN_ON(test_len == 0);
1346
1347 if (copy_from_user(&test, useraddr, sizeof(test)))
1348 return -EFAULT;
1349
1350 test.len = test_len;
1351 data = kmalloc(test_len * sizeof(u64), GFP_USER);
1352 if (!data)
1353 return -ENOMEM;
1354
1355 ops->self_test(dev, &test, data);
1356
1357 ret = -EFAULT;
1358 if (copy_to_user(useraddr, &test, sizeof(test)))
1359 goto out;
1360 useraddr += sizeof(test);
1361 if (copy_to_user(useraddr, data, test.len * sizeof(u64)))
1362 goto out;
1363 ret = 0;
1364
1365 out:
1366 kfree(data);
1367 return ret;
1368 }
1369
1370 static int ethtool_get_strings(struct net_device *dev, void __user *useraddr)
1371 {
1372 struct ethtool_gstrings gstrings;
1373 u8 *data;
1374 int ret;
1375
1376 if (copy_from_user(&gstrings, useraddr, sizeof(gstrings)))
1377 return -EFAULT;
1378
1379 ret = __ethtool_get_sset_count(dev, gstrings.string_set);
1380 if (ret < 0)
1381 return ret;
1382
1383 gstrings.len = ret;
1384
1385 data = kcalloc(gstrings.len, ETH_GSTRING_LEN, GFP_USER);
1386 if (!data)
1387 return -ENOMEM;
1388
1389 __ethtool_get_strings(dev, gstrings.string_set, data);
1390
1391 ret = -EFAULT;
1392 if (copy_to_user(useraddr, &gstrings, sizeof(gstrings)))
1393 goto out;
1394 useraddr += sizeof(gstrings);
1395 if (copy_to_user(useraddr, data, gstrings.len * ETH_GSTRING_LEN))
1396 goto out;
1397 ret = 0;
1398
1399 out:
1400 kfree(data);
1401 return ret;
1402 }
1403
1404 static int ethtool_phys_id(struct net_device *dev, void __user *useraddr)
1405 {
1406 struct ethtool_value id;
1407 static bool busy;
1408 const struct ethtool_ops *ops = dev->ethtool_ops;
1409 int rc;
1410
1411 if (!ops->set_phys_id)
1412 return -EOPNOTSUPP;
1413
1414 if (busy)
1415 return -EBUSY;
1416
1417 if (copy_from_user(&id, useraddr, sizeof(id)))
1418 return -EFAULT;
1419
1420 rc = ops->set_phys_id(dev, ETHTOOL_ID_ACTIVE);
1421 if (rc < 0)
1422 return rc;
1423
1424 /* Drop the RTNL lock while waiting, but prevent reentry or
1425 * removal of the device.
1426 */
1427 busy = true;
1428 dev_hold(dev);
1429 rtnl_unlock();
1430
1431 if (rc == 0) {
1432 /* Driver will handle this itself */
1433 schedule_timeout_interruptible(
1434 id.data ? (id.data * HZ) : MAX_SCHEDULE_TIMEOUT);
1435 } else {
1436 /* Driver expects to be called at twice the frequency in rc */
1437 int n = rc * 2, i, interval = HZ / n;
1438
1439 /* Count down seconds */
1440 do {
1441 /* Count down iterations per second */
1442 i = n;
1443 do {
1444 rtnl_lock();
1445 rc = ops->set_phys_id(dev,
1446 (i & 1) ? ETHTOOL_ID_OFF : ETHTOOL_ID_ON);
1447 rtnl_unlock();
1448 if (rc)
1449 break;
1450 schedule_timeout_interruptible(interval);
1451 } while (!signal_pending(current) && --i != 0);
1452 } while (!signal_pending(current) &&
1453 (id.data == 0 || --id.data != 0));
1454 }
1455
1456 rtnl_lock();
1457 dev_put(dev);
1458 busy = false;
1459
1460 (void) ops->set_phys_id(dev, ETHTOOL_ID_INACTIVE);
1461 return rc;
1462 }
1463
1464 static int ethtool_get_stats(struct net_device *dev, void __user *useraddr)
1465 {
1466 struct ethtool_stats stats;
1467 const struct ethtool_ops *ops = dev->ethtool_ops;
1468 u64 *data;
1469 int ret, n_stats;
1470
1471 if (!ops->get_ethtool_stats || !ops->get_sset_count)
1472 return -EOPNOTSUPP;
1473
1474 n_stats = ops->get_sset_count(dev, ETH_SS_STATS);
1475 if (n_stats < 0)
1476 return n_stats;
1477 WARN_ON(n_stats == 0);
1478
1479 if (copy_from_user(&stats, useraddr, sizeof(stats)))
1480 return -EFAULT;
1481
1482 stats.n_stats = n_stats;
1483 data = kmalloc(n_stats * sizeof(u64), GFP_USER);
1484 if (!data)
1485 return -ENOMEM;
1486
1487 ops->get_ethtool_stats(dev, &stats, data);
1488
1489 ret = -EFAULT;
1490 if (copy_to_user(useraddr, &stats, sizeof(stats)))
1491 goto out;
1492 useraddr += sizeof(stats);
1493 if (copy_to_user(useraddr, data, stats.n_stats * sizeof(u64)))
1494 goto out;
1495 ret = 0;
1496
1497 out:
1498 kfree(data);
1499 return ret;
1500 }
1501
1502 static int ethtool_get_phy_stats(struct net_device *dev, void __user *useraddr)
1503 {
1504 struct ethtool_stats stats;
1505 struct phy_device *phydev = dev->phydev;
1506 u64 *data;
1507 int ret, n_stats;
1508
1509 if (!phydev)
1510 return -EOPNOTSUPP;
1511
1512 n_stats = phy_get_sset_count(phydev);
1513
1514 if (n_stats < 0)
1515 return n_stats;
1516 WARN_ON(n_stats == 0);
1517
1518 if (copy_from_user(&stats, useraddr, sizeof(stats)))
1519 return -EFAULT;
1520
1521 stats.n_stats = n_stats;
1522 data = kmalloc_array(n_stats, sizeof(u64), GFP_USER);
1523 if (!data)
1524 return -ENOMEM;
1525
1526 mutex_lock(&phydev->lock);
1527 phydev->drv->get_stats(phydev, &stats, data);
1528 mutex_unlock(&phydev->lock);
1529
1530 ret = -EFAULT;
1531 if (copy_to_user(useraddr, &stats, sizeof(stats)))
1532 goto out;
1533 useraddr += sizeof(stats);
1534 if (copy_to_user(useraddr, data, stats.n_stats * sizeof(u64)))
1535 goto out;
1536 ret = 0;
1537
1538 out:
1539 kfree(data);
1540 return ret;
1541 }
1542
1543 static int ethtool_get_perm_addr(struct net_device *dev, void __user *useraddr)
1544 {
1545 struct ethtool_perm_addr epaddr;
1546
1547 if (copy_from_user(&epaddr, useraddr, sizeof(epaddr)))
1548 return -EFAULT;
1549
1550 if (epaddr.size < dev->addr_len)
1551 return -ETOOSMALL;
1552 epaddr.size = dev->addr_len;
1553
1554 if (copy_to_user(useraddr, &epaddr, sizeof(epaddr)))
1555 return -EFAULT;
1556 useraddr += sizeof(epaddr);
1557 if (copy_to_user(useraddr, dev->perm_addr, epaddr.size))
1558 return -EFAULT;
1559 return 0;
1560 }
1561
1562 static int ethtool_get_value(struct net_device *dev, char __user *useraddr,
1563 u32 cmd, u32 (*actor)(struct net_device *))
1564 {
1565 struct ethtool_value edata = { .cmd = cmd };
1566
1567 if (!actor)
1568 return -EOPNOTSUPP;
1569
1570 edata.data = actor(dev);
1571
1572 if (copy_to_user(useraddr, &edata, sizeof(edata)))
1573 return -EFAULT;
1574 return 0;
1575 }
1576
1577 static int ethtool_set_value_void(struct net_device *dev, char __user *useraddr,
1578 void (*actor)(struct net_device *, u32))
1579 {
1580 struct ethtool_value edata;
1581
1582 if (!actor)
1583 return -EOPNOTSUPP;
1584
1585 if (copy_from_user(&edata, useraddr, sizeof(edata)))
1586 return -EFAULT;
1587
1588 actor(dev, edata.data);
1589 return 0;
1590 }
1591
1592 static int ethtool_set_value(struct net_device *dev, char __user *useraddr,
1593 int (*actor)(struct net_device *, u32))
1594 {
1595 struct ethtool_value edata;
1596
1597 if (!actor)
1598 return -EOPNOTSUPP;
1599
1600 if (copy_from_user(&edata, useraddr, sizeof(edata)))
1601 return -EFAULT;
1602
1603 return actor(dev, edata.data);
1604 }
1605
1606 static noinline_for_stack int ethtool_flash_device(struct net_device *dev,
1607 char __user *useraddr)
1608 {
1609 struct ethtool_flash efl;
1610
1611 if (copy_from_user(&efl, useraddr, sizeof(efl)))
1612 return -EFAULT;
1613
1614 if (!dev->ethtool_ops->flash_device)
1615 return -EOPNOTSUPP;
1616
1617 efl.data[ETHTOOL_FLASH_MAX_FILENAME - 1] = 0;
1618
1619 return dev->ethtool_ops->flash_device(dev, &efl);
1620 }
1621
1622 static int ethtool_set_dump(struct net_device *dev,
1623 void __user *useraddr)
1624 {
1625 struct ethtool_dump dump;
1626
1627 if (!dev->ethtool_ops->set_dump)
1628 return -EOPNOTSUPP;
1629
1630 if (copy_from_user(&dump, useraddr, sizeof(dump)))
1631 return -EFAULT;
1632
1633 return dev->ethtool_ops->set_dump(dev, &dump);
1634 }
1635
1636 static int ethtool_get_dump_flag(struct net_device *dev,
1637 void __user *useraddr)
1638 {
1639 int ret;
1640 struct ethtool_dump dump;
1641 const struct ethtool_ops *ops = dev->ethtool_ops;
1642
1643 if (!ops->get_dump_flag)
1644 return -EOPNOTSUPP;
1645
1646 if (copy_from_user(&dump, useraddr, sizeof(dump)))
1647 return -EFAULT;
1648
1649 ret = ops->get_dump_flag(dev, &dump);
1650 if (ret)
1651 return ret;
1652
1653 if (copy_to_user(useraddr, &dump, sizeof(dump)))
1654 return -EFAULT;
1655 return 0;
1656 }
1657
1658 static int ethtool_get_dump_data(struct net_device *dev,
1659 void __user *useraddr)
1660 {
1661 int ret;
1662 __u32 len;
1663 struct ethtool_dump dump, tmp;
1664 const struct ethtool_ops *ops = dev->ethtool_ops;
1665 void *data = NULL;
1666
1667 if (!ops->get_dump_data || !ops->get_dump_flag)
1668 return -EOPNOTSUPP;
1669
1670 if (copy_from_user(&dump, useraddr, sizeof(dump)))
1671 return -EFAULT;
1672
1673 memset(&tmp, 0, sizeof(tmp));
1674 tmp.cmd = ETHTOOL_GET_DUMP_FLAG;
1675 ret = ops->get_dump_flag(dev, &tmp);
1676 if (ret)
1677 return ret;
1678
1679 len = min(tmp.len, dump.len);
1680 if (!len)
1681 return -EFAULT;
1682
1683 /* Don't ever let the driver think there's more space available
1684 * than it requested with .get_dump_flag().
1685 */
1686 dump.len = len;
1687
1688 /* Always allocate enough space to hold the whole thing so that the
1689 * driver does not need to check the length and bother with partial
1690 * dumping.
1691 */
1692 data = vzalloc(tmp.len);
1693 if (!data)
1694 return -ENOMEM;
1695 ret = ops->get_dump_data(dev, &dump, data);
1696 if (ret)
1697 goto out;
1698
1699 /* There are two sane possibilities:
1700 * 1. The driver's .get_dump_data() does not touch dump.len.
1701 * 2. Or it may set dump.len to how much it really writes, which
1702 * should be tmp.len (or len if it can do a partial dump).
1703 * In any case respond to userspace with the actual length of data
1704 * it's receiving.
1705 */
1706 WARN_ON(dump.len != len && dump.len != tmp.len);
1707 dump.len = len;
1708
1709 if (copy_to_user(useraddr, &dump, sizeof(dump))) {
1710 ret = -EFAULT;
1711 goto out;
1712 }
1713 useraddr += offsetof(struct ethtool_dump, data);
1714 if (copy_to_user(useraddr, data, len))
1715 ret = -EFAULT;
1716 out:
1717 vfree(data);
1718 return ret;
1719 }
1720
1721 static int ethtool_get_ts_info(struct net_device *dev, void __user *useraddr)
1722 {
1723 int err = 0;
1724 struct ethtool_ts_info info;
1725 const struct ethtool_ops *ops = dev->ethtool_ops;
1726 struct phy_device *phydev = dev->phydev;
1727
1728 memset(&info, 0, sizeof(info));
1729 info.cmd = ETHTOOL_GET_TS_INFO;
1730
1731 if (phydev && phydev->drv && phydev->drv->ts_info) {
1732 err = phydev->drv->ts_info(phydev, &info);
1733 } else if (ops->get_ts_info) {
1734 err = ops->get_ts_info(dev, &info);
1735 } else {
1736 info.so_timestamping =
1737 SOF_TIMESTAMPING_RX_SOFTWARE |
1738 SOF_TIMESTAMPING_SOFTWARE;
1739 info.phc_index = -1;
1740 }
1741
1742 if (err)
1743 return err;
1744
1745 if (copy_to_user(useraddr, &info, sizeof(info)))
1746 err = -EFAULT;
1747
1748 return err;
1749 }
1750
1751 static int __ethtool_get_module_info(struct net_device *dev,
1752 struct ethtool_modinfo *modinfo)
1753 {
1754 const struct ethtool_ops *ops = dev->ethtool_ops;
1755 struct phy_device *phydev = dev->phydev;
1756
1757 if (phydev && phydev->drv && phydev->drv->module_info)
1758 return phydev->drv->module_info(phydev, modinfo);
1759
1760 if (ops->get_module_info)
1761 return ops->get_module_info(dev, modinfo);
1762
1763 return -EOPNOTSUPP;
1764 }
1765
1766 static int ethtool_get_module_info(struct net_device *dev,
1767 void __user *useraddr)
1768 {
1769 int ret;
1770 struct ethtool_modinfo modinfo;
1771
1772 if (copy_from_user(&modinfo, useraddr, sizeof(modinfo)))
1773 return -EFAULT;
1774
1775 ret = __ethtool_get_module_info(dev, &modinfo);
1776 if (ret)
1777 return ret;
1778
1779 if (copy_to_user(useraddr, &modinfo, sizeof(modinfo)))
1780 return -EFAULT;
1781
1782 return 0;
1783 }
1784
1785 static int __ethtool_get_module_eeprom(struct net_device *dev,
1786 struct ethtool_eeprom *ee, u8 *data)
1787 {
1788 const struct ethtool_ops *ops = dev->ethtool_ops;
1789 struct phy_device *phydev = dev->phydev;
1790
1791 if (phydev && phydev->drv && phydev->drv->module_eeprom)
1792 return phydev->drv->module_eeprom(phydev, ee, data);
1793
1794 if (ops->get_module_eeprom)
1795 return ops->get_module_eeprom(dev, ee, data);
1796
1797 return -EOPNOTSUPP;
1798 }
1799
1800 static int ethtool_get_module_eeprom(struct net_device *dev,
1801 void __user *useraddr)
1802 {
1803 int ret;
1804 struct ethtool_modinfo modinfo;
1805
1806 ret = __ethtool_get_module_info(dev, &modinfo);
1807 if (ret)
1808 return ret;
1809
1810 return ethtool_get_any_eeprom(dev, useraddr,
1811 __ethtool_get_module_eeprom,
1812 modinfo.eeprom_len);
1813 }
1814
1815 static int ethtool_tunable_valid(const struct ethtool_tunable *tuna)
1816 {
1817 switch (tuna->id) {
1818 case ETHTOOL_RX_COPYBREAK:
1819 case ETHTOOL_TX_COPYBREAK:
1820 if (tuna->len != sizeof(u32) ||
1821 tuna->type_id != ETHTOOL_TUNABLE_U32)
1822 return -EINVAL;
1823 break;
1824 default:
1825 return -EINVAL;
1826 }
1827
1828 return 0;
1829 }
1830
1831 static int ethtool_get_tunable(struct net_device *dev, void __user *useraddr)
1832 {
1833 int ret;
1834 struct ethtool_tunable tuna;
1835 const struct ethtool_ops *ops = dev->ethtool_ops;
1836 void *data;
1837
1838 if (!ops->get_tunable)
1839 return -EOPNOTSUPP;
1840 if (copy_from_user(&tuna, useraddr, sizeof(tuna)))
1841 return -EFAULT;
1842 ret = ethtool_tunable_valid(&tuna);
1843 if (ret)
1844 return ret;
1845 data = kmalloc(tuna.len, GFP_USER);
1846 if (!data)
1847 return -ENOMEM;
1848 ret = ops->get_tunable(dev, &tuna, data);
1849 if (ret)
1850 goto out;
1851 useraddr += sizeof(tuna);
1852 ret = -EFAULT;
1853 if (copy_to_user(useraddr, data, tuna.len))
1854 goto out;
1855 ret = 0;
1856
1857 out:
1858 kfree(data);
1859 return ret;
1860 }
1861
1862 static int ethtool_set_tunable(struct net_device *dev, void __user *useraddr)
1863 {
1864 int ret;
1865 struct ethtool_tunable tuna;
1866 const struct ethtool_ops *ops = dev->ethtool_ops;
1867 void *data;
1868
1869 if (!ops->set_tunable)
1870 return -EOPNOTSUPP;
1871 if (copy_from_user(&tuna, useraddr, sizeof(tuna)))
1872 return -EFAULT;
1873 ret = ethtool_tunable_valid(&tuna);
1874 if (ret)
1875 return ret;
1876 data = kmalloc(tuna.len, GFP_USER);
1877 if (!data)
1878 return -ENOMEM;
1879 useraddr += sizeof(tuna);
1880 ret = -EFAULT;
1881 if (copy_from_user(data, useraddr, tuna.len))
1882 goto out;
1883 ret = ops->set_tunable(dev, &tuna, data);
1884
1885 out:
1886 kfree(data);
1887 return ret;
1888 }
1889
1890 /* The main entry point in this file. Called from net/core/dev_ioctl.c */
1891
1892 int dev_ethtool(struct net *net, struct ifreq *ifr)
1893 {
1894 struct net_device *dev = __dev_get_by_name(net, ifr->ifr_name);
1895 void __user *useraddr = ifr->ifr_data;
1896 u32 ethcmd;
1897 int rc;
1898 netdev_features_t old_features;
1899
1900 if (!dev || !netif_device_present(dev))
1901 return -ENODEV;
1902
1903 if (copy_from_user(&ethcmd, useraddr, sizeof(ethcmd)))
1904 return -EFAULT;
1905
1906 /* Allow some commands to be done by anyone */
1907 switch (ethcmd) {
1908 case ETHTOOL_GSET:
1909 case ETHTOOL_GDRVINFO:
1910 case ETHTOOL_GMSGLVL:
1911 case ETHTOOL_GLINK:
1912 case ETHTOOL_GCOALESCE:
1913 case ETHTOOL_GRINGPARAM:
1914 case ETHTOOL_GPAUSEPARAM:
1915 case ETHTOOL_GRXCSUM:
1916 case ETHTOOL_GTXCSUM:
1917 case ETHTOOL_GSG:
1918 case ETHTOOL_GSSET_INFO:
1919 case ETHTOOL_GSTRINGS:
1920 case ETHTOOL_GSTATS:
1921 case ETHTOOL_GPHYSTATS:
1922 case ETHTOOL_GTSO:
1923 case ETHTOOL_GPERMADDR:
1924 case ETHTOOL_GUFO:
1925 case ETHTOOL_GGSO:
1926 case ETHTOOL_GGRO:
1927 case ETHTOOL_GFLAGS:
1928 case ETHTOOL_GPFLAGS:
1929 case ETHTOOL_GRXFH:
1930 case ETHTOOL_GRXRINGS:
1931 case ETHTOOL_GRXCLSRLCNT:
1932 case ETHTOOL_GRXCLSRULE:
1933 case ETHTOOL_GRXCLSRLALL:
1934 case ETHTOOL_GRXFHINDIR:
1935 case ETHTOOL_GRSSH:
1936 case ETHTOOL_GFEATURES:
1937 case ETHTOOL_GCHANNELS:
1938 case ETHTOOL_GET_TS_INFO:
1939 case ETHTOOL_GEEE:
1940 case ETHTOOL_GTUNABLE:
1941 break;
1942 default:
1943 if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
1944 return -EPERM;
1945 }
1946
1947 if (dev->ethtool_ops->begin) {
1948 rc = dev->ethtool_ops->begin(dev);
1949 if (rc < 0)
1950 return rc;
1951 }
1952 old_features = dev->features;
1953
1954 switch (ethcmd) {
1955 case ETHTOOL_GSET:
1956 rc = ethtool_get_settings(dev, useraddr);
1957 break;
1958 case ETHTOOL_SSET:
1959 rc = ethtool_set_settings(dev, useraddr);
1960 break;
1961 case ETHTOOL_GDRVINFO:
1962 rc = ethtool_get_drvinfo(dev, useraddr);
1963 break;
1964 case ETHTOOL_GREGS:
1965 rc = ethtool_get_regs(dev, useraddr);
1966 break;
1967 case ETHTOOL_GWOL:
1968 rc = ethtool_get_wol(dev, useraddr);
1969 break;
1970 case ETHTOOL_SWOL:
1971 rc = ethtool_set_wol(dev, useraddr);
1972 break;
1973 case ETHTOOL_GMSGLVL:
1974 rc = ethtool_get_value(dev, useraddr, ethcmd,
1975 dev->ethtool_ops->get_msglevel);
1976 break;
1977 case ETHTOOL_SMSGLVL:
1978 rc = ethtool_set_value_void(dev, useraddr,
1979 dev->ethtool_ops->set_msglevel);
1980 break;
1981 case ETHTOOL_GEEE:
1982 rc = ethtool_get_eee(dev, useraddr);
1983 break;
1984 case ETHTOOL_SEEE:
1985 rc = ethtool_set_eee(dev, useraddr);
1986 break;
1987 case ETHTOOL_NWAY_RST:
1988 rc = ethtool_nway_reset(dev);
1989 break;
1990 case ETHTOOL_GLINK:
1991 rc = ethtool_get_link(dev, useraddr);
1992 break;
1993 case ETHTOOL_GEEPROM:
1994 rc = ethtool_get_eeprom(dev, useraddr);
1995 break;
1996 case ETHTOOL_SEEPROM:
1997 rc = ethtool_set_eeprom(dev, useraddr);
1998 break;
1999 case ETHTOOL_GCOALESCE:
2000 rc = ethtool_get_coalesce(dev, useraddr);
2001 break;
2002 case ETHTOOL_SCOALESCE:
2003 rc = ethtool_set_coalesce(dev, useraddr);
2004 break;
2005 case ETHTOOL_GRINGPARAM:
2006 rc = ethtool_get_ringparam(dev, useraddr);
2007 break;
2008 case ETHTOOL_SRINGPARAM:
2009 rc = ethtool_set_ringparam(dev, useraddr);
2010 break;
2011 case ETHTOOL_GPAUSEPARAM:
2012 rc = ethtool_get_pauseparam(dev, useraddr);
2013 break;
2014 case ETHTOOL_SPAUSEPARAM:
2015 rc = ethtool_set_pauseparam(dev, useraddr);
2016 break;
2017 case ETHTOOL_TEST:
2018 rc = ethtool_self_test(dev, useraddr);
2019 break;
2020 case ETHTOOL_GSTRINGS:
2021 rc = ethtool_get_strings(dev, useraddr);
2022 break;
2023 case ETHTOOL_PHYS_ID:
2024 rc = ethtool_phys_id(dev, useraddr);
2025 break;
2026 case ETHTOOL_GSTATS:
2027 rc = ethtool_get_stats(dev, useraddr);
2028 break;
2029 case ETHTOOL_GPERMADDR:
2030 rc = ethtool_get_perm_addr(dev, useraddr);
2031 break;
2032 case ETHTOOL_GFLAGS:
2033 rc = ethtool_get_value(dev, useraddr, ethcmd,
2034 __ethtool_get_flags);
2035 break;
2036 case ETHTOOL_SFLAGS:
2037 rc = ethtool_set_value(dev, useraddr, __ethtool_set_flags);
2038 break;
2039 case ETHTOOL_GPFLAGS:
2040 rc = ethtool_get_value(dev, useraddr, ethcmd,
2041 dev->ethtool_ops->get_priv_flags);
2042 break;
2043 case ETHTOOL_SPFLAGS:
2044 rc = ethtool_set_value(dev, useraddr,
2045 dev->ethtool_ops->set_priv_flags);
2046 break;
2047 case ETHTOOL_GRXFH:
2048 case ETHTOOL_GRXRINGS:
2049 case ETHTOOL_GRXCLSRLCNT:
2050 case ETHTOOL_GRXCLSRULE:
2051 case ETHTOOL_GRXCLSRLALL:
2052 rc = ethtool_get_rxnfc(dev, ethcmd, useraddr);
2053 break;
2054 case ETHTOOL_SRXFH:
2055 case ETHTOOL_SRXCLSRLDEL:
2056 case ETHTOOL_SRXCLSRLINS:
2057 rc = ethtool_set_rxnfc(dev, ethcmd, useraddr);
2058 break;
2059 case ETHTOOL_FLASHDEV:
2060 rc = ethtool_flash_device(dev, useraddr);
2061 break;
2062 case ETHTOOL_RESET:
2063 rc = ethtool_reset(dev, useraddr);
2064 break;
2065 case ETHTOOL_GSSET_INFO:
2066 rc = ethtool_get_sset_info(dev, useraddr);
2067 break;
2068 case ETHTOOL_GRXFHINDIR:
2069 rc = ethtool_get_rxfh_indir(dev, useraddr);
2070 break;
2071 case ETHTOOL_SRXFHINDIR:
2072 rc = ethtool_set_rxfh_indir(dev, useraddr);
2073 break;
2074 case ETHTOOL_GRSSH:
2075 rc = ethtool_get_rxfh(dev, useraddr);
2076 break;
2077 case ETHTOOL_SRSSH:
2078 rc = ethtool_set_rxfh(dev, useraddr);
2079 break;
2080 case ETHTOOL_GFEATURES:
2081 rc = ethtool_get_features(dev, useraddr);
2082 break;
2083 case ETHTOOL_SFEATURES:
2084 rc = ethtool_set_features(dev, useraddr);
2085 break;
2086 case ETHTOOL_GTXCSUM:
2087 case ETHTOOL_GRXCSUM:
2088 case ETHTOOL_GSG:
2089 case ETHTOOL_GTSO:
2090 case ETHTOOL_GUFO:
2091 case ETHTOOL_GGSO:
2092 case ETHTOOL_GGRO:
2093 rc = ethtool_get_one_feature(dev, useraddr, ethcmd);
2094 break;
2095 case ETHTOOL_STXCSUM:
2096 case ETHTOOL_SRXCSUM:
2097 case ETHTOOL_SSG:
2098 case ETHTOOL_STSO:
2099 case ETHTOOL_SUFO:
2100 case ETHTOOL_SGSO:
2101 case ETHTOOL_SGRO:
2102 rc = ethtool_set_one_feature(dev, useraddr, ethcmd);
2103 break;
2104 case ETHTOOL_GCHANNELS:
2105 rc = ethtool_get_channels(dev, useraddr);
2106 break;
2107 case ETHTOOL_SCHANNELS:
2108 rc = ethtool_set_channels(dev, useraddr);
2109 break;
2110 case ETHTOOL_SET_DUMP:
2111 rc = ethtool_set_dump(dev, useraddr);
2112 break;
2113 case ETHTOOL_GET_DUMP_FLAG:
2114 rc = ethtool_get_dump_flag(dev, useraddr);
2115 break;
2116 case ETHTOOL_GET_DUMP_DATA:
2117 rc = ethtool_get_dump_data(dev, useraddr);
2118 break;
2119 case ETHTOOL_GET_TS_INFO:
2120 rc = ethtool_get_ts_info(dev, useraddr);
2121 break;
2122 case ETHTOOL_GMODULEINFO:
2123 rc = ethtool_get_module_info(dev, useraddr);
2124 break;
2125 case ETHTOOL_GMODULEEEPROM:
2126 rc = ethtool_get_module_eeprom(dev, useraddr);
2127 break;
2128 case ETHTOOL_GTUNABLE:
2129 rc = ethtool_get_tunable(dev, useraddr);
2130 break;
2131 case ETHTOOL_STUNABLE:
2132 rc = ethtool_set_tunable(dev, useraddr);
2133 break;
2134 case ETHTOOL_GPHYSTATS:
2135 rc = ethtool_get_phy_stats(dev, useraddr);
2136 break;
2137 default:
2138 rc = -EOPNOTSUPP;
2139 }
2140
2141 if (dev->ethtool_ops->complete)
2142 dev->ethtool_ops->complete(dev);
2143
2144 if (old_features != dev->features)
2145 netdev_features_change(dev);
2146
2147 return rc;
2148 }
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