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ethtool: Replace ethtool_ops::{get,set}_rxfh_indir() with {get,set}_rxfh()
[deliverable/linux.git] / net / core / ethtool.c
CommitLineData
1da177e4
LT		 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
61a44b9c 6 * the information ethtool needs.
1da177e4 7 *
61a44b9c
MW		 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.
1da177e4
LT		 12 */
13
14#include <linux/module.h>
15#include <linux/types.h>
4fc268d2 16#include <linux/capability.h>
1da177e4
LT		 17#include <linux/errno.h>
18#include <linux/ethtool.h>
19#include <linux/netdevice.h>
c8f3a8c3
RC		 20#include <linux/net_tstamp.h>
21#include <linux/phy.h>
d17792eb 22#include <linux/bitops.h>
97f8aefb 23#include <linux/uaccess.h>
73da16c2 24#include <linux/vmalloc.h>
5a0e3ad6 25#include <linux/slab.h>
68f512f2
BH		 26#include <linux/rtnetlink.h>
27#include <linux/sched.h>
1da177e4 28
4ec93edb 29/*
1da177e4
LT		 30 * Some useful ethtool_ops methods that're device independent.
31 * If we find that all drivers want to do the same thing here,
32 * we can turn these into dev_() function calls.
33 */
34
35u32 ethtool_op_get_link(struct net_device *dev)
36{
37 return netif_carrier_ok(dev) ? 1 : 0;
38}
97f8aefb 39EXPORT_SYMBOL(ethtool_op_get_link);
1da177e4 40
02eacbd0
RC		 41int ethtool_op_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info)
42{
43 info->so_timestamping =
44 SOF_TIMESTAMPING_TX_SOFTWARE |
45 SOF_TIMESTAMPING_RX_SOFTWARE |
46 SOF_TIMESTAMPING_SOFTWARE;
47 info->phc_index = -1;
48 return 0;
49}
50EXPORT_SYMBOL(ethtool_op_get_ts_info);
51
1da177e4
LT		 52/* Handlers for each ethtool command */
53
475414f6 54#define ETHTOOL_DEV_FEATURE_WORDS ((NETDEV_FEATURE_COUNT + 31) / 32)
5455c699 55
9d921549
MM		 56static const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN] = {
57 [NETIF_F_SG_BIT] = "tx-scatter-gather",
58 [NETIF_F_IP_CSUM_BIT] = "tx-checksum-ipv4",
9d921549
MM		 59 [NETIF_F_HW_CSUM_BIT] = "tx-checksum-ip-generic",
60 [NETIF_F_IPV6_CSUM_BIT] = "tx-checksum-ipv6",
61 [NETIF_F_HIGHDMA_BIT] = "highdma",
62 [NETIF_F_FRAGLIST_BIT] = "tx-scatter-gather-fraglist",
788dfcac 63 [NETIF_F_HW_VLAN_CTAG_TX_BIT] = "tx-vlan-hw-insert",
9d921549 64
788dfcac
FLVC		 65 [NETIF_F_HW_VLAN_CTAG_RX_BIT] = "rx-vlan-hw-parse",
66 [NETIF_F_HW_VLAN_CTAG_FILTER_BIT] = "rx-vlan-filter",
2d6577f1
DM		 67 [NETIF_F_HW_VLAN_STAG_TX_BIT] = "tx-vlan-stag-hw-insert",
68 [NETIF_F_HW_VLAN_STAG_RX_BIT] = "rx-vlan-stag-hw-parse",
69 [NETIF_F_HW_VLAN_STAG_FILTER_BIT] = "rx-vlan-stag-filter",
9d921549
MM		 70 [NETIF_F_VLAN_CHALLENGED_BIT] = "vlan-challenged",
71 [NETIF_F_GSO_BIT] = "tx-generic-segmentation",
72 [NETIF_F_LLTX_BIT] = "tx-lockless",
73 [NETIF_F_NETNS_LOCAL_BIT] = "netns-local",
74 [NETIF_F_GRO_BIT] = "rx-gro",
75 [NETIF_F_LRO_BIT] = "rx-lro",
76
77 [NETIF_F_TSO_BIT] = "tx-tcp-segmentation",
78 [NETIF_F_UFO_BIT] = "tx-udp-fragmentation",
79 [NETIF_F_GSO_ROBUST_BIT] = "tx-gso-robust",
80 [NETIF_F_TSO_ECN_BIT] = "tx-tcp-ecn-segmentation",
81 [NETIF_F_TSO6_BIT] = "tx-tcp6-segmentation",
82 [NETIF_F_FSO_BIT] = "tx-fcoe-segmentation",
68c33163 83 [NETIF_F_GSO_GRE_BIT] = "tx-gre-segmentation",
cb32f511 84 [NETIF_F_GSO_IPIP_BIT] = "tx-ipip-segmentation",
61c1db7f 85 [NETIF_F_GSO_SIT_BIT] = "tx-sit-segmentation",
73136267 86 [NETIF_F_GSO_UDP_TUNNEL_BIT] = "tx-udp_tnl-segmentation",
0d89d203 87 [NETIF_F_GSO_MPLS_BIT] = "tx-mpls-segmentation",
9d921549
MM		 88
89 [NETIF_F_FCOE_CRC_BIT] = "tx-checksum-fcoe-crc",
90 [NETIF_F_SCTP_CSUM_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",
36eabda3 97 [NETIF_F_RXFCS_BIT] = "rx-fcs",
5e0c03c8 98 [NETIF_F_RXALL_BIT] = "rx-all",
a6cc0cfa 99 [NETIF_F_HW_L2FW_DOFFLOAD_BIT] = "l2-fwd-offload",
d0290214 100 [NETIF_F_BUSY_POLL_BIT] = "busy-poll",
9d921549
MM		 101};
102
5455c699
MM		 103static int ethtool_get_features(struct net_device *dev, void __user *useraddr)
104{
105 struct ethtool_gfeatures cmd = {
106 .cmd = ETHTOOL_GFEATURES,
107 .size = ETHTOOL_DEV_FEATURE_WORDS,
108 };
475414f6 109 struct ethtool_get_features_block features[ETHTOOL_DEV_FEATURE_WORDS];
5455c699
MM		 110 u32 __user *sizeaddr;
111 u32 copy_size;
475414f6
MM		 112 int i;
113
114 /* in case feature bits run out again */
09da71b1 115 BUILD_BUG_ON(ETHTOOL_DEV_FEATURE_WORDS * sizeof(u32) > sizeof(netdev_features_t));
475414f6
MM		 116
117 for (i = 0; i < ETHTOOL_DEV_FEATURE_WORDS; ++i) {
09da71b1
MM		 118 features[i].available = (u32)(dev->hw_features >> (32 * i));
119 features[i].requested = (u32)(dev->wanted_features >> (32 * i));
120 features[i].active = (u32)(dev->features >> (32 * i));
121 features[i].never_changed =
122 (u32)(NETIF_F_NEVER_CHANGE >> (32 * i));
475414f6 123 }
5455c699
MM		 124
125 sizeaddr = useraddr + offsetof(struct ethtool_gfeatures, size);
126 if (get_user(copy_size, sizeaddr))
127 return -EFAULT;
128
129 if (copy_size > ETHTOOL_DEV_FEATURE_WORDS)
130 copy_size = ETHTOOL_DEV_FEATURE_WORDS;
131
132 if (copy_to_user(useraddr, &cmd, sizeof(cmd)))
133 return -EFAULT;
134 useraddr += sizeof(cmd);
135 if (copy_to_user(useraddr, features, copy_size * sizeof(*features)))
136 return -EFAULT;
137
138 return 0;
139}
140
141static int ethtool_set_features(struct net_device *dev, void __user *useraddr)
142{
143 struct ethtool_sfeatures cmd;
144 struct ethtool_set_features_block features[ETHTOOL_DEV_FEATURE_WORDS];
475414f6
MM		 145 netdev_features_t wanted = 0, valid = 0;
146 int i, ret = 0;
5455c699
MM		 147
148 if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
149 return -EFAULT;
150 useraddr += sizeof(cmd);
151
152 if (cmd.size != ETHTOOL_DEV_FEATURE_WORDS)
153 return -EINVAL;
154
155 if (copy_from_user(features, useraddr, sizeof(features)))
156 return -EFAULT;
157
475414f6 158 for (i = 0; i < ETHTOOL_DEV_FEATURE_WORDS; ++i) {
09da71b1
MM		 159 valid |= (netdev_features_t)features[i].valid << (32 * i);
160 wanted |= (netdev_features_t)features[i].requested << (32 * i);
475414f6
MM		 161 }
162
163 if (valid & ~NETIF_F_ETHTOOL_BITS)
5455c699
MM		 164 return -EINVAL;
165
475414f6
MM		 166 if (valid & ~dev->hw_features) {
167 valid &= dev->hw_features;
5455c699
MM		 168 ret |= ETHTOOL_F_UNSUPPORTED;
169 }
170
475414f6
MM		 171 dev->wanted_features &= ~valid;
172 dev->wanted_features |= wanted & valid;
6cb6a27c 173 __netdev_update_features(dev);
5455c699 174
475414f6 175 if ((dev->wanted_features ^ dev->features) & valid)
5455c699
MM		 176 ret |= ETHTOOL_F_WISH;
177
178 return ret;
179}
180
340ae165
MM		 181static int __ethtool_get_sset_count(struct net_device *dev, int sset)
182{
183 const struct ethtool_ops *ops = dev->ethtool_ops;
184
5455c699
MM		 185 if (sset == ETH_SS_FEATURES)
186 return ARRAY_SIZE(netdev_features_strings);
187
c03a14e8 188 if (ops->get_sset_count && ops->get_strings)
340ae165
MM		 189 return ops->get_sset_count(dev, sset);
190 else
191 return -EOPNOTSUPP;
192}
193
194static void __ethtool_get_strings(struct net_device *dev,
195 u32 stringset, u8 *data)
196{
197 const struct ethtool_ops *ops = dev->ethtool_ops;
198
5455c699
MM		 199 if (stringset == ETH_SS_FEATURES)
200 memcpy(data, netdev_features_strings,
201 sizeof(netdev_features_strings));
202 else
203 /* ops->get_strings is valid because checked earlier */
204 ops->get_strings(dev, stringset, data);
340ae165
MM		 205}
206
c8f44aff 207static netdev_features_t ethtool_get_feature_mask(u32 eth_cmd)
0a417704
MM		 208{
209 /* feature masks of legacy discrete ethtool ops */
210
211 switch (eth_cmd) {
212 case ETHTOOL_GTXCSUM:
213 case ETHTOOL_STXCSUM:
214 return NETIF_F_ALL_CSUM | NETIF_F_SCTP_CSUM;
e83d360d
MM		 215 case ETHTOOL_GRXCSUM:
216 case ETHTOOL_SRXCSUM:
217 return NETIF_F_RXCSUM;
0a417704
MM		 218 case ETHTOOL_GSG:
219 case ETHTOOL_SSG:
220 return NETIF_F_SG;
221 case ETHTOOL_GTSO:
222 case ETHTOOL_STSO:
223 return NETIF_F_ALL_TSO;
224 case ETHTOOL_GUFO:
225 case ETHTOOL_SUFO:
226 return NETIF_F_UFO;
227 case ETHTOOL_GGSO:
228 case ETHTOOL_SGSO:
229 return NETIF_F_GSO;
230 case ETHTOOL_GGRO:
231 case ETHTOOL_SGRO:
232 return NETIF_F_GRO;
233 default:
234 BUG();
235 }
236}
237
0a417704
MM		 238static int ethtool_get_one_feature(struct net_device *dev,
239 char __user *useraddr, u32 ethcmd)
240{
c8f44aff 241 netdev_features_t mask = ethtool_get_feature_mask(ethcmd);
0a417704
MM		 242 struct ethtool_value edata = {
243 .cmd = ethcmd,
86794881 244 .data = !!(dev->features & mask),
0a417704 245 };
0a417704 246
0a417704
MM		 247 if (copy_to_user(useraddr, &edata, sizeof(edata)))
248 return -EFAULT;
249 return 0;
250}
251
0a417704
MM		 252static int ethtool_set_one_feature(struct net_device *dev,
253 void __user *useraddr, u32 ethcmd)
254{
255 struct ethtool_value edata;
c8f44aff 256 netdev_features_t mask;
0a417704
MM		 257
258 if (copy_from_user(&edata, useraddr, sizeof(edata)))
259 return -EFAULT;
260
86794881
MM		 261 mask = ethtool_get_feature_mask(ethcmd);
262 mask &= dev->hw_features;
bc5787c6
MM		 263 if (!mask)
264 return -EOPNOTSUPP;
86794881 265
bc5787c6
MM		 266 if (edata.data)
267 dev->wanted_features |= mask;
268 else
269 dev->wanted_features &= ~mask;
86794881 270
bc5787c6 271 __netdev_update_features(dev);
86794881 272
bc5787c6
MM		 273 return 0;
274}
275
02b3a552
MM		 276#define ETH_ALL_FLAGS (ETH_FLAG_LRO | ETH_FLAG_RXVLAN | ETH_FLAG_TXVLAN | \
277 ETH_FLAG_NTUPLE | ETH_FLAG_RXHASH)
f646968f
PM		 278#define ETH_ALL_FEATURES (NETIF_F_LRO | NETIF_F_HW_VLAN_CTAG_RX | \
279 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_NTUPLE | \
280 NETIF_F_RXHASH)
bc5787c6
MM		 281
282static u32 __ethtool_get_flags(struct net_device *dev)
283{
02b3a552
MM		 284 u32 flags = 0;
285
8a73125c
DF		 286 if (dev->features & NETIF_F_LRO)
287 flags |= ETH_FLAG_LRO;
288 if (dev->features & NETIF_F_HW_VLAN_CTAG_RX)
289 flags |= ETH_FLAG_RXVLAN;
290 if (dev->features & NETIF_F_HW_VLAN_CTAG_TX)
291 flags |= ETH_FLAG_TXVLAN;
292 if (dev->features & NETIF_F_NTUPLE)
293 flags |= ETH_FLAG_NTUPLE;
294 if (dev->features & NETIF_F_RXHASH)
295 flags |= ETH_FLAG_RXHASH;
02b3a552
MM		 296
297 return flags;
0a417704
MM		 298}
299
bc5787c6 300static int __ethtool_set_flags(struct net_device *dev, u32 data)
da8ac86c 301{
c8f44aff 302 netdev_features_t features = 0, changed;
da8ac86c 303
02b3a552 304 if (data & ~ETH_ALL_FLAGS)
da8ac86c
MM		 305 return -EINVAL;
306
8a73125c
DF		 307 if (data & ETH_FLAG_LRO)
308 features |= NETIF_F_LRO;
309 if (data & ETH_FLAG_RXVLAN)
310 features |= NETIF_F_HW_VLAN_CTAG_RX;
311 if (data & ETH_FLAG_TXVLAN)
312 features |= NETIF_F_HW_VLAN_CTAG_TX;
313 if (data & ETH_FLAG_NTUPLE)
314 features |= NETIF_F_NTUPLE;
315 if (data & ETH_FLAG_RXHASH)
316 features |= NETIF_F_RXHASH;
02b3a552 317
da8ac86c 318 /* allow changing only bits set in hw_features */
02b3a552 319 changed = (features ^ dev->features) & ETH_ALL_FEATURES;
da8ac86c
MM		 320 if (changed & ~dev->hw_features)
321 return (changed & dev->hw_features) ? -EINVAL : -EOPNOTSUPP;
322
323 dev->wanted_features =
02b3a552 324 (dev->wanted_features & ~changed) | (features & changed);
da8ac86c 325
6cb6a27c 326 __netdev_update_features(dev);
da8ac86c
MM		 327
328 return 0;
329}
330
4bc71cb9 331int __ethtool_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1da177e4 332{
4bc71cb9 333 ASSERT_RTNL();
1da177e4 334
c03a14e8 335 if (!dev->ethtool_ops->get_settings)
1da177e4
LT		 336 return -EOPNOTSUPP;
337
4bc71cb9
JP		 338 memset(cmd, 0, sizeof(struct ethtool_cmd));
339 cmd->cmd = ETHTOOL_GSET;
340 return dev->ethtool_ops->get_settings(dev, cmd);
341}
342EXPORT_SYMBOL(__ethtool_get_settings);
343
344static int ethtool_get_settings(struct net_device *dev, void __user *useraddr)
345{
346 int err;
347 struct ethtool_cmd cmd;
348
349 err = __ethtool_get_settings(dev, &cmd);
1da177e4
LT		 350 if (err < 0)
351 return err;
352
353 if (copy_to_user(useraddr, &cmd, sizeof(cmd)))
354 return -EFAULT;
355 return 0;
356}
357
358static int ethtool_set_settings(struct net_device *dev, void __user *useraddr)
359{
360 struct ethtool_cmd cmd;
361
362 if (!dev->ethtool_ops->set_settings)
363 return -EOPNOTSUPP;
364
365 if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
366 return -EFAULT;
367
368 return dev->ethtool_ops->set_settings(dev, &cmd);
369}
370
97f8aefb 371static noinline_for_stack int ethtool_get_drvinfo(struct net_device *dev,
372 void __user *useraddr)
1da177e4
LT		 373{
374 struct ethtool_drvinfo info;
76fd8593 375 const struct ethtool_ops *ops = dev->ethtool_ops;
1da177e4 376
1da177e4
LT		 377 memset(&info, 0, sizeof(info));
378 info.cmd = ETHTOOL_GDRVINFO;
c03a14e8 379 if (ops->get_drvinfo) {
01414802
BH		 380 ops->get_drvinfo(dev, &info);
381 } else if (dev->dev.parent && dev->dev.parent->driver) {
382 strlcpy(info.bus_info, dev_name(dev->dev.parent),
383 sizeof(info.bus_info));
384 strlcpy(info.driver, dev->dev.parent->driver->name,
385 sizeof(info.driver));
386 } else {
387 return -EOPNOTSUPP;
388 }
1da177e4 389
723b2f57
JG		 390 /*
391 * this method of obtaining string set info is deprecated;
d17792eb 392 * Use ETHTOOL_GSSET_INFO instead.
723b2f57 393 */
c03a14e8 394 if (ops->get_sset_count) {
ff03d49f
JG		 395 int rc;
396
397 rc = ops->get_sset_count(dev, ETH_SS_TEST);
398 if (rc >= 0)
399 info.testinfo_len = rc;
400 rc = ops->get_sset_count(dev, ETH_SS_STATS);
401 if (rc >= 0)
402 info.n_stats = rc;
339bf024
JG		 403 rc = ops->get_sset_count(dev, ETH_SS_PRIV_FLAGS);
404 if (rc >= 0)
405 info.n_priv_flags = rc;
ff03d49f 406 }
c03a14e8 407 if (ops->get_regs_len)
1da177e4 408 info.regdump_len = ops->get_regs_len(dev);
c03a14e8 409 if (ops->get_eeprom_len)
1da177e4
LT		 410 info.eedump_len = ops->get_eeprom_len(dev);
411
412 if (copy_to_user(useraddr, &info, sizeof(info)))
413 return -EFAULT;
414 return 0;
415}
416
f5c445ed 417static noinline_for_stack int ethtool_get_sset_info(struct net_device *dev,
97f8aefb 418 void __user *useraddr)
723b2f57
JG		 419{
420 struct ethtool_sset_info info;
723b2f57
JG		 421 u64 sset_mask;
422 int i, idx = 0, n_bits = 0, ret, rc;
423 u32 *info_buf = NULL;
424
723b2f57
JG		 425 if (copy_from_user(&info, useraddr, sizeof(info)))
426 return -EFAULT;
427
428 /* store copy of mask, because we zero struct later on */
429 sset_mask = info.sset_mask;
430 if (!sset_mask)
431 return 0;
432
433 /* calculate size of return buffer */
d17792eb 434 n_bits = hweight64(sset_mask);
723b2f57
JG		 435
436 memset(&info, 0, sizeof(info));
437 info.cmd = ETHTOOL_GSSET_INFO;
438
439 info_buf = kzalloc(n_bits * sizeof(u32), GFP_USER);
440 if (!info_buf)
441 return -ENOMEM;
442
443 /*
444 * fill return buffer based on input bitmask and successful
445 * get_sset_count return
446 */
447 for (i = 0; i < 64; i++) {
448 if (!(sset_mask & (1ULL << i)))
449 continue;
450
340ae165 451 rc = __ethtool_get_sset_count(dev, i);
723b2f57
JG		 452 if (rc >= 0) {
453 info.sset_mask |= (1ULL << i);
454 info_buf[idx++] = rc;
455 }
456 }
457
458 ret = -EFAULT;
459 if (copy_to_user(useraddr, &info, sizeof(info)))
460 goto out;
461
462 useraddr += offsetof(struct ethtool_sset_info, data);
463 if (copy_to_user(useraddr, info_buf, idx * sizeof(u32)))
464 goto out;
465
466 ret = 0;
467
468out:
469 kfree(info_buf);
470 return ret;
471}
472
97f8aefb 473static noinline_for_stack int ethtool_set_rxnfc(struct net_device *dev,
bf988435 474 u32 cmd, void __user *useraddr)
0853ad66 475{
bf988435
BH		 476 struct ethtool_rxnfc info;
477 size_t info_size = sizeof(info);
55664f32 478 int rc;
0853ad66 479
59089d8d 480 if (!dev->ethtool_ops->set_rxnfc)
0853ad66
SB		 481 return -EOPNOTSUPP;
482
bf988435
BH		 483 /* struct ethtool_rxnfc was originally defined for
484 * ETHTOOL_{G,S}RXFH with only the cmd, flow_type and data
485 * members. User-space might still be using that
486 * definition. */
487 if (cmd == ETHTOOL_SRXFH)
488 info_size = (offsetof(struct ethtool_rxnfc, data) +
489 sizeof(info.data));
490
491 if (copy_from_user(&info, useraddr, info_size))
0853ad66
SB		 492 return -EFAULT;
493
55664f32
BH		 494 rc = dev->ethtool_ops->set_rxnfc(dev, &info);
495 if (rc)
496 return rc;
497
498 if (cmd == ETHTOOL_SRXCLSRLINS &&
499 copy_to_user(useraddr, &info, info_size))
500 return -EFAULT;
501
502 return 0;
0853ad66
SB		 503}
504
97f8aefb 505static noinline_for_stack int ethtool_get_rxnfc(struct net_device *dev,
bf988435 506 u32 cmd, void __user *useraddr)
0853ad66
SB		 507{
508 struct ethtool_rxnfc info;
bf988435 509 size_t info_size = sizeof(info);
59089d8d
SB		 510 const struct ethtool_ops *ops = dev->ethtool_ops;
511 int ret;
512 void *rule_buf = NULL;
0853ad66 513
59089d8d 514 if (!ops->get_rxnfc)
0853ad66
SB		 515 return -EOPNOTSUPP;
516
bf988435
BH		 517 /* struct ethtool_rxnfc was originally defined for
518 * ETHTOOL_{G,S}RXFH with only the cmd, flow_type and data
519 * members. User-space might still be using that
520 * definition. */
521 if (cmd == ETHTOOL_GRXFH)
522 info_size = (offsetof(struct ethtool_rxnfc, data) +
523 sizeof(info.data));
524
525 if (copy_from_user(&info, useraddr, info_size))
0853ad66
SB		 526 return -EFAULT;
527
59089d8d
SB		 528 if (info.cmd == ETHTOOL_GRXCLSRLALL) {
529 if (info.rule_cnt > 0) {
db048b69 530 if (info.rule_cnt <= KMALLOC_MAX_SIZE / sizeof(u32))
ae6df5f9 531 rule_buf = kzalloc(info.rule_cnt * sizeof(u32),
db048b69 532 GFP_USER);
59089d8d
SB		 533 if (!rule_buf)
534 return -ENOMEM;
535 }
536 }
0853ad66 537
59089d8d
SB		 538 ret = ops->get_rxnfc(dev, &info, rule_buf);
539 if (ret < 0)
540 goto err_out;
541
542 ret = -EFAULT;
bf988435 543 if (copy_to_user(useraddr, &info, info_size))
59089d8d
SB		 544 goto err_out;
545
546 if (rule_buf) {
547 useraddr += offsetof(struct ethtool_rxnfc, rule_locs);
548 if (copy_to_user(useraddr, rule_buf,
549 info.rule_cnt * sizeof(u32)))
550 goto err_out;
551 }
552 ret = 0;
553
554err_out:
c9caceca 555 kfree(rule_buf);
59089d8d
SB		 556
557 return ret;
0853ad66
SB		 558}
559
3de0b592
VD		 560static int ethtool_copy_validate_indir(u32 *indir, void __user *useraddr,
561 struct ethtool_rxnfc *rx_rings,
562 u32 size)
563{
fb95cd8d 564 int i;
3de0b592
VD		 565
566 if (copy_from_user(indir, useraddr, size * sizeof(indir[0])))
fb95cd8d 567 return -EFAULT;
3de0b592
VD		 568
569 /* Validate ring indices */
fb95cd8d
BH		 570 for (i = 0; i < size; i++)
571 if (indir[i] >= rx_rings->data)
572 return -EINVAL;
573
574 return 0;
3de0b592
VD		 575}
576
a5b6ee29
BH		 577static noinline_for_stack int ethtool_get_rxfh_indir(struct net_device *dev,
578 void __user *useraddr)
579{
7850f63f
BH		 580 u32 user_size, dev_size;
581 u32 *indir;
a5b6ee29
BH		 582 int ret;
583
7850f63f 584 if (!dev->ethtool_ops->get_rxfh_indir_size ||
fe62d001 585 !dev->ethtool_ops->get_rxfh)
7850f63f
BH		 586 return -EOPNOTSUPP;
587 dev_size = dev->ethtool_ops->get_rxfh_indir_size(dev);
588 if (dev_size == 0)
a5b6ee29
BH		 589 return -EOPNOTSUPP;
590
7850f63f 591 if (copy_from_user(&user_size,
a5b6ee29 592 useraddr + offsetof(struct ethtool_rxfh_indir, size),
7850f63f 593 sizeof(user_size)))
a5b6ee29
BH		 594 return -EFAULT;
595
7850f63f
BH		 596 if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh_indir, size),
597 &dev_size, sizeof(dev_size)))
598 return -EFAULT;
599
600 /* If the user buffer size is 0, this is just a query for the
601 * device table size. Otherwise, if it's smaller than the
602 * device table size it's an error.
603 */
604 if (user_size < dev_size)
605 return user_size == 0 ? 0 : -EINVAL;
606
607 indir = kcalloc(dev_size, sizeof(indir[0]), GFP_USER);
a5b6ee29
BH		 608 if (!indir)
609 return -ENOMEM;
610
fe62d001 611 ret = dev->ethtool_ops->get_rxfh(dev, indir, NULL);
a5b6ee29
BH		 612 if (ret)
613 goto out;
614
7850f63f
BH		 615 if (copy_to_user(useraddr +
616 offsetof(struct ethtool_rxfh_indir, ring_index[0]),
617 indir, dev_size * sizeof(indir[0])))
a5b6ee29
BH		 618 ret = -EFAULT;
619
620out:
621 kfree(indir);
622 return ret;
623}
624
625static noinline_for_stack int ethtool_set_rxfh_indir(struct net_device *dev,
626 void __user *useraddr)
627{
7850f63f
BH		 628 struct ethtool_rxnfc rx_rings;
629 u32 user_size, dev_size, i;
630 u32 *indir;
c03a14e8 631 const struct ethtool_ops *ops = dev->ethtool_ops;
a5b6ee29 632 int ret;
3de0b592 633 u32 ringidx_offset = offsetof(struct ethtool_rxfh_indir, ring_index[0]);
a5b6ee29 634
fe62d001 635 if (!ops->get_rxfh_indir_size || !ops->set_rxfh ||
c03a14e8 636 !ops->get_rxnfc)
7850f63f 637 return -EOPNOTSUPP;
c03a14e8
JP		 638
639 dev_size = ops->get_rxfh_indir_size(dev);
7850f63f 640 if (dev_size == 0)
a5b6ee29
BH		 641 return -EOPNOTSUPP;
642
7850f63f 643 if (copy_from_user(&user_size,
a5b6ee29 644 useraddr + offsetof(struct ethtool_rxfh_indir, size),
7850f63f 645 sizeof(user_size)))
a5b6ee29
BH		 646 return -EFAULT;
647
278bc429 648 if (user_size != 0 && user_size != dev_size)
7850f63f
BH		 649 return -EINVAL;
650
651 indir = kcalloc(dev_size, sizeof(indir[0]), GFP_USER);
a5b6ee29
BH		 652 if (!indir)
653 return -ENOMEM;
654
7850f63f 655 rx_rings.cmd = ETHTOOL_GRXRINGS;
c03a14e8 656 ret = ops->get_rxnfc(dev, &rx_rings, NULL);
7850f63f
BH		 657 if (ret)
658 goto out;
278bc429
BH		 659
660 if (user_size == 0) {
661 for (i = 0; i < dev_size; i++)
662 indir[i] = ethtool_rxfh_indir_default(i, rx_rings.data);
663 } else {
3de0b592
VD		 664 ret = ethtool_copy_validate_indir(indir,
665 useraddr + ringidx_offset,
666 &rx_rings,
667 dev_size);
668 if (ret)
669 goto out;
670 }
671
fe62d001 672 ret = ops->set_rxfh(dev, indir, NULL);
3de0b592
VD		 673
674out:
675 kfree(indir);
676 return ret;
677}
678
679static noinline_for_stack int ethtool_get_rxfh(struct net_device *dev,
680 void __user *useraddr)
681{
682 int ret;
683 const struct ethtool_ops *ops = dev->ethtool_ops;
684 u32 user_indir_size = 0, user_key_size = 0;
685 u32 dev_indir_size = 0, dev_key_size = 0;
686 u32 total_size;
687 u32 indir_offset, indir_bytes;
688 u32 key_offset;
689 u32 *indir = NULL;
690 u8 *hkey = NULL;
691 u8 *rss_config;
692
693 if (!(dev->ethtool_ops->get_rxfh_indir_size ||
694 dev->ethtool_ops->get_rxfh_key_size) ||
695 !dev->ethtool_ops->get_rxfh)
696 return -EOPNOTSUPP;
697
698 if (ops->get_rxfh_indir_size)
699 dev_indir_size = ops->get_rxfh_indir_size(dev);
700
701 indir_offset = offsetof(struct ethtool_rxfh, indir_size);
702
703 if (copy_from_user(&user_indir_size,
704 useraddr + indir_offset,
705 sizeof(user_indir_size)))
706 return -EFAULT;
707
708 if (copy_to_user(useraddr + indir_offset,
709 &dev_indir_size, sizeof(dev_indir_size)))
710 return -EFAULT;
711
712 if (ops->get_rxfh_key_size)
713 dev_key_size = ops->get_rxfh_key_size(dev);
714
715 if ((dev_key_size + dev_indir_size) == 0)
716 return -EOPNOTSUPP;
717
718 key_offset = offsetof(struct ethtool_rxfh, key_size);
719
720 if (copy_from_user(&user_key_size,
721 useraddr + key_offset,
722 sizeof(user_key_size)))
723 return -EFAULT;
724
725 if (copy_to_user(useraddr + key_offset,
726 &dev_key_size, sizeof(dev_key_size)))
727 return -EFAULT;
728
729 /* If the user buffer size is 0, this is just a query for the
730 * device table size and key size. Otherwise, if the User size is
731 * not equal to device table size or key size it's an error.
732 */
733 if (!user_indir_size && !user_key_size)
734 return 0;
735
736 if ((user_indir_size && (user_indir_size != dev_indir_size)) ||
737 (user_key_size && (user_key_size != dev_key_size)))
738 return -EINVAL;
739
740 indir_bytes = user_indir_size * sizeof(indir[0]);
741 total_size = indir_bytes + user_key_size;
742 rss_config = kzalloc(total_size, GFP_USER);
743 if (!rss_config)
744 return -ENOMEM;
745
746 if (user_indir_size)
747 indir = (u32 *)rss_config;
748
749 if (user_key_size)
750 hkey = rss_config + indir_bytes;
751
752 ret = dev->ethtool_ops->get_rxfh(dev, indir, hkey);
753 if (!ret) {
754 if (copy_to_user(useraddr +
755 offsetof(struct ethtool_rxfh, rss_config[0]),
756 rss_config, total_size))
278bc429 757 ret = -EFAULT;
3de0b592
VD		 758 }
759
760 kfree(rss_config);
761
762 return ret;
763}
764
765static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev,
766 void __user *useraddr)
767{
768 int ret;
769 const struct ethtool_ops *ops = dev->ethtool_ops;
770 struct ethtool_rxnfc rx_rings;
771 u32 user_indir_size = 0, dev_indir_size = 0, i;
772 u32 user_key_size = 0, dev_key_size = 0;
773 u32 *indir = NULL, indir_bytes = 0;
774 u8 *hkey = NULL;
775 u8 *rss_config;
776 u32 indir_offset, key_offset;
777 u32 rss_cfg_offset = offsetof(struct ethtool_rxfh, rss_config[0]);
778
779 if (!(ops->get_rxfh_indir_size || ops->get_rxfh_key_size) ||
780 !ops->get_rxnfc || !ops->set_rxfh)
781 return -EOPNOTSUPP;
782
783 if (ops->get_rxfh_indir_size)
784 dev_indir_size = ops->get_rxfh_indir_size(dev);
785
786 indir_offset = offsetof(struct ethtool_rxfh, indir_size);
787 if (copy_from_user(&user_indir_size,
788 useraddr + indir_offset,
789 sizeof(user_indir_size)))
790 return -EFAULT;
791
792 if (ops->get_rxfh_key_size)
793 dev_key_size = dev->ethtool_ops->get_rxfh_key_size(dev);
794
795 if ((dev_key_size + dev_indir_size) == 0)
796 return -EOPNOTSUPP;
797
798 key_offset = offsetof(struct ethtool_rxfh, key_size);
799 if (copy_from_user(&user_key_size,
800 useraddr + key_offset,
801 sizeof(user_key_size)))
802 return -EFAULT;
803
804 /* If either indir or hash key is valid, proceed further.
61d88c68 805 * It is not valid to request that both be unchanged.
3de0b592 806 */
7455fa24
BH		 807 if ((user_indir_size &&
808 user_indir_size != ETH_RXFH_INDIR_NO_CHANGE &&
809 user_indir_size != dev_indir_size) ||
61d88c68
BH		 810 (user_key_size && (user_key_size != dev_key_size)) ||
811 (user_indir_size == ETH_RXFH_INDIR_NO_CHANGE &&
812 user_key_size == 0))
3de0b592
VD		 813 return -EINVAL;
814
7455fa24 815 if (user_indir_size != ETH_RXFH_INDIR_NO_CHANGE)
3de0b592
VD		 816 indir_bytes = dev_indir_size * sizeof(indir[0]);
817
818 rss_config = kzalloc(indir_bytes + user_key_size, GFP_USER);
819 if (!rss_config)
820 return -ENOMEM;
821
822 rx_rings.cmd = ETHTOOL_GRXRINGS;
823 ret = ops->get_rxnfc(dev, &rx_rings, NULL);
824 if (ret)
825 goto out;
826
827 /* user_indir_size == 0 means reset the indir table to default.
7455fa24 828 * user_indir_size == ETH_RXFH_INDIR_NO_CHANGE means leave it unchanged.
3de0b592 829 */
7455fa24
BH		 830 if (user_indir_size &&
831 user_indir_size != ETH_RXFH_INDIR_NO_CHANGE) {
3de0b592
VD		 832 indir = (u32 *)rss_config;
833 ret = ethtool_copy_validate_indir(indir,
834 useraddr + rss_cfg_offset,
835 &rx_rings,
836 user_indir_size);
837 if (ret)
7850f63f 838 goto out;
3de0b592
VD		 839 } else if (user_indir_size == 0) {
840 indir = (u32 *)rss_config;
841 for (i = 0; i < dev_indir_size; i++)
842 indir[i] = ethtool_rxfh_indir_default(i, rx_rings.data);
843 }
278bc429 844
3de0b592
VD		 845 if (user_key_size) {
846 hkey = rss_config + indir_bytes;
847 if (copy_from_user(hkey,
848 useraddr + rss_cfg_offset + indir_bytes,
849 user_key_size)) {
850 ret = -EFAULT;
851 goto out;
278bc429 852 }
7850f63f
BH		 853 }
854
3de0b592 855 ret = ops->set_rxfh(dev, indir, hkey);
a5b6ee29
BH		 856
857out:
3de0b592 858 kfree(rss_config);
a5b6ee29
BH		 859 return ret;
860}
861
1da177e4
LT		 862static int ethtool_get_regs(struct net_device *dev, char __user *useraddr)
863{
864 struct ethtool_regs regs;
76fd8593 865 const struct ethtool_ops *ops = dev->ethtool_ops;
1da177e4
LT		 866 void *regbuf;
867 int reglen, ret;
868
869 if (!ops->get_regs || !ops->get_regs_len)
870 return -EOPNOTSUPP;
871
872 if (copy_from_user(&regs, useraddr, sizeof(regs)))
873 return -EFAULT;
874
875 reglen = ops->get_regs_len(dev);
876 if (regs.len > reglen)
877 regs.len = reglen;
878
b7c7d01a 879 regbuf = vzalloc(reglen);
67ae7cf1 880 if (reglen && !regbuf)
1da177e4
LT		 881 return -ENOMEM;
882
883 ops->get_regs(dev, &regs, regbuf);
884
885 ret = -EFAULT;
886 if (copy_to_user(useraddr, &regs, sizeof(regs)))
887 goto out;
888 useraddr += offsetof(struct ethtool_regs, data);
67ae7cf1 889 if (regbuf && copy_to_user(useraddr, regbuf, regs.len))
1da177e4
LT		 890 goto out;
891 ret = 0;
892
893 out:
a77f5db3 894 vfree(regbuf);
1da177e4
LT		 895 return ret;
896}
897
d73d3a8c
BH		 898static int ethtool_reset(struct net_device *dev, char __user *useraddr)
899{
900 struct ethtool_value reset;
901 int ret;
902
903 if (!dev->ethtool_ops->reset)
904 return -EOPNOTSUPP;
905
906 if (copy_from_user(&reset, useraddr, sizeof(reset)))
907 return -EFAULT;
908
909 ret = dev->ethtool_ops->reset(dev, &reset.data);
910 if (ret)
911 return ret;
912
913 if (copy_to_user(useraddr, &reset, sizeof(reset)))
914 return -EFAULT;
915 return 0;
916}
917
1da177e4
LT		 918static int ethtool_get_wol(struct net_device *dev, char __user *useraddr)
919{
8e557421 920 struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL };
1da177e4
LT		 921
922 if (!dev->ethtool_ops->get_wol)
923 return -EOPNOTSUPP;
924
925 dev->ethtool_ops->get_wol(dev, &wol);
926
927 if (copy_to_user(useraddr, &wol, sizeof(wol)))
928 return -EFAULT;
929 return 0;
930}
931
932static int ethtool_set_wol(struct net_device *dev, char __user *useraddr)
933{
934 struct ethtool_wolinfo wol;
935
936 if (!dev->ethtool_ops->set_wol)
937 return -EOPNOTSUPP;
938
939 if (copy_from_user(&wol, useraddr, sizeof(wol)))
940 return -EFAULT;
941
942 return dev->ethtool_ops->set_wol(dev, &wol);
943}
944
80f12ecc
YM		 945static int ethtool_get_eee(struct net_device *dev, char __user *useraddr)
946{
947 struct ethtool_eee edata;
948 int rc;
949
950 if (!dev->ethtool_ops->get_eee)
951 return -EOPNOTSUPP;
952
953 memset(&edata, 0, sizeof(struct ethtool_eee));
954 edata.cmd = ETHTOOL_GEEE;
955 rc = dev->ethtool_ops->get_eee(dev, &edata);
956
957 if (rc)
958 return rc;
959
960 if (copy_to_user(useraddr, &edata, sizeof(edata)))
961 return -EFAULT;
962
963 return 0;
964}
965
966static int ethtool_set_eee(struct net_device *dev, char __user *useraddr)
967{
968 struct ethtool_eee edata;
969
970 if (!dev->ethtool_ops->set_eee)
971 return -EOPNOTSUPP;
972
973 if (copy_from_user(&edata, useraddr, sizeof(edata)))
974 return -EFAULT;
975
976 return dev->ethtool_ops->set_eee(dev, &edata);
977}
978
1da177e4
LT		 979static int ethtool_nway_reset(struct net_device *dev)
980{
981 if (!dev->ethtool_ops->nway_reset)
982 return -EOPNOTSUPP;
983
984 return dev->ethtool_ops->nway_reset(dev);
985}
986
e596e6e4
BH		 987static int ethtool_get_link(struct net_device *dev, char __user *useraddr)
988{
989 struct ethtool_value edata = { .cmd = ETHTOOL_GLINK };
990
991 if (!dev->ethtool_ops->get_link)
992 return -EOPNOTSUPP;
993
994 edata.data = netif_running(dev) && dev->ethtool_ops->get_link(dev);
995
996 if (copy_to_user(useraddr, &edata, sizeof(edata)))
997 return -EFAULT;
998 return 0;
999}
1000
081d094e
BH		 1001static int ethtool_get_any_eeprom(struct net_device *dev, void __user *useraddr,
1002 int (*getter)(struct net_device *,
1003 struct ethtool_eeprom *, u8 *),
1004 u32 total_len)
1da177e4
LT		 1005{
1006 struct ethtool_eeprom eeprom;
b131dd5d
MSB		 1007 void __user *userbuf = useraddr + sizeof(eeprom);
1008 u32 bytes_remaining;
1da177e4 1009 u8 *data;
b131dd5d 1010 int ret = 0;
1da177e4 1011
1da177e4
LT		 1012 if (copy_from_user(&eeprom, useraddr, sizeof(eeprom)))
1013 return -EFAULT;
1014
1015 /* Check for wrap and zero */
1016 if (eeprom.offset + eeprom.len <= eeprom.offset)
1017 return -EINVAL;
1018
1019 /* Check for exceeding total eeprom len */
081d094e 1020 if (eeprom.offset + eeprom.len > total_len)
1da177e4
LT		 1021 return -EINVAL;
1022
b131dd5d 1023 data = kmalloc(PAGE_SIZE, GFP_USER);
1da177e4
LT		 1024 if (!data)
1025 return -ENOMEM;
1026
b131dd5d
MSB		 1027 bytes_remaining = eeprom.len;
1028 while (bytes_remaining > 0) {
1029 eeprom.len = min(bytes_remaining, (u32)PAGE_SIZE);
1030
081d094e 1031 ret = getter(dev, &eeprom, data);
b131dd5d
MSB		 1032 if (ret)
1033 break;
1034 if (copy_to_user(userbuf, data, eeprom.len)) {
1035 ret = -EFAULT;
1036 break;
1037 }
1038 userbuf += eeprom.len;
1039 eeprom.offset += eeprom.len;
1040 bytes_remaining -= eeprom.len;
1041 }
1da177e4 1042
c5835df9
MSB		 1043 eeprom.len = userbuf - (useraddr + sizeof(eeprom));
1044 eeprom.offset -= eeprom.len;
1045 if (copy_to_user(useraddr, &eeprom, sizeof(eeprom)))
1046 ret = -EFAULT;
1047
1da177e4
LT		 1048 kfree(data);
1049 return ret;
1050}
1051
081d094e
BH		 1052static int ethtool_get_eeprom(struct net_device *dev, void __user *useraddr)
1053{
1054 const struct ethtool_ops *ops = dev->ethtool_ops;
1055
1056 if (!ops->get_eeprom || !ops->get_eeprom_len)
1057 return -EOPNOTSUPP;
1058
1059 return ethtool_get_any_eeprom(dev, useraddr, ops->get_eeprom,
1060 ops->get_eeprom_len(dev));
1061}
1062
1da177e4
LT		 1063static int ethtool_set_eeprom(struct net_device *dev, void __user *useraddr)
1064{
1065 struct ethtool_eeprom eeprom;
76fd8593 1066 const struct ethtool_ops *ops = dev->ethtool_ops;
b131dd5d
MSB		 1067 void __user *userbuf = useraddr + sizeof(eeprom);
1068 u32 bytes_remaining;
1da177e4 1069 u8 *data;
b131dd5d 1070 int ret = 0;
1da177e4
LT		 1071
1072 if (!ops->set_eeprom || !ops->get_eeprom_len)
1073 return -EOPNOTSUPP;
1074
1075 if (copy_from_user(&eeprom, useraddr, sizeof(eeprom)))
1076 return -EFAULT;
1077
1078 /* Check for wrap and zero */
1079 if (eeprom.offset + eeprom.len <= eeprom.offset)
1080 return -EINVAL;
1081
1082 /* Check for exceeding total eeprom len */
1083 if (eeprom.offset + eeprom.len > ops->get_eeprom_len(dev))
1084 return -EINVAL;
1085
b131dd5d 1086 data = kmalloc(PAGE_SIZE, GFP_USER);
1da177e4
LT		 1087 if (!data)
1088 return -ENOMEM;
1089
b131dd5d
MSB		 1090 bytes_remaining = eeprom.len;
1091 while (bytes_remaining > 0) {
1092 eeprom.len = min(bytes_remaining, (u32)PAGE_SIZE);
1093
1094 if (copy_from_user(data, userbuf, eeprom.len)) {
1095 ret = -EFAULT;
1096 break;
1097 }
1098 ret = ops->set_eeprom(dev, &eeprom, data);
1099 if (ret)
1100 break;
1101 userbuf += eeprom.len;
1102 eeprom.offset += eeprom.len;
1103 bytes_remaining -= eeprom.len;
1104 }
1da177e4 1105
1da177e4
LT		 1106 kfree(data);
1107 return ret;
1108}
1109
97f8aefb 1110static noinline_for_stack int ethtool_get_coalesce(struct net_device *dev,
1111 void __user *useraddr)
1da177e4 1112{
8e557421 1113 struct ethtool_coalesce coalesce = { .cmd = ETHTOOL_GCOALESCE };
1da177e4
LT		 1114
1115 if (!dev->ethtool_ops->get_coalesce)
1116 return -EOPNOTSUPP;
1117
1118 dev->ethtool_ops->get_coalesce(dev, &coalesce);
1119
1120 if (copy_to_user(useraddr, &coalesce, sizeof(coalesce)))
1121 return -EFAULT;
1122 return 0;
1123}
1124
97f8aefb 1125static noinline_for_stack int ethtool_set_coalesce(struct net_device *dev,
1126 void __user *useraddr)
1da177e4
LT		 1127{
1128 struct ethtool_coalesce coalesce;
1129
fa04ae5c 1130 if (!dev->ethtool_ops->set_coalesce)
1da177e4
LT		 1131 return -EOPNOTSUPP;
1132
1133 if (copy_from_user(&coalesce, useraddr, sizeof(coalesce)))
1134 return -EFAULT;
1135
1136 return dev->ethtool_ops->set_coalesce(dev, &coalesce);
1137}
1138
1139static int ethtool_get_ringparam(struct net_device *dev, void __user *useraddr)
1140{
8e557421 1141 struct ethtool_ringparam ringparam = { .cmd = ETHTOOL_GRINGPARAM };
1da177e4
LT		 1142
1143 if (!dev->ethtool_ops->get_ringparam)
1144 return -EOPNOTSUPP;
1145
1146 dev->ethtool_ops->get_ringparam(dev, &ringparam);
1147
1148 if (copy_to_user(useraddr, &ringparam, sizeof(ringparam)))
1149 return -EFAULT;
1150 return 0;
1151}
1152
1153static int ethtool_set_ringparam(struct net_device *dev, void __user *useraddr)
1154{
1155 struct ethtool_ringparam ringparam;
1156
1157 if (!dev->ethtool_ops->set_ringparam)
1158 return -EOPNOTSUPP;
1159
1160 if (copy_from_user(&ringparam, useraddr, sizeof(ringparam)))
1161 return -EFAULT;
1162
1163 return dev->ethtool_ops->set_ringparam(dev, &ringparam);
1164}
1165
8b5933c3 1166static noinline_for_stack int ethtool_get_channels(struct net_device *dev,
1167 void __user *useraddr)
1168{
1169 struct ethtool_channels channels = { .cmd = ETHTOOL_GCHANNELS };
1170
1171 if (!dev->ethtool_ops->get_channels)
1172 return -EOPNOTSUPP;
1173
1174 dev->ethtool_ops->get_channels(dev, &channels);
1175
1176 if (copy_to_user(useraddr, &channels, sizeof(channels)))
1177 return -EFAULT;
1178 return 0;
1179}
1180
1181static noinline_for_stack int ethtool_set_channels(struct net_device *dev,
1182 void __user *useraddr)
1183{
1184 struct ethtool_channels channels;
1185
1186 if (!dev->ethtool_ops->set_channels)
1187 return -EOPNOTSUPP;
1188
1189 if (copy_from_user(&channels, useraddr, sizeof(channels)))
1190 return -EFAULT;
1191
1192 return dev->ethtool_ops->set_channels(dev, &channels);
1193}
1194
1da177e4
LT		 1195static int ethtool_get_pauseparam(struct net_device *dev, void __user *useraddr)
1196{
1197 struct ethtool_pauseparam pauseparam = { ETHTOOL_GPAUSEPARAM };
1198
1199 if (!dev->ethtool_ops->get_pauseparam)
1200 return -EOPNOTSUPP;
1201
1202 dev->ethtool_ops->get_pauseparam(dev, &pauseparam);
1203
1204 if (copy_to_user(useraddr, &pauseparam, sizeof(pauseparam)))
1205 return -EFAULT;
1206 return 0;
1207}
1208
1209static int ethtool_set_pauseparam(struct net_device *dev, void __user *useraddr)
1210{
1211 struct ethtool_pauseparam pauseparam;
1212
e1b90c41 1213 if (!dev->ethtool_ops->set_pauseparam)
1da177e4
LT		 1214 return -EOPNOTSUPP;
1215
1216 if (copy_from_user(&pauseparam, useraddr, sizeof(pauseparam)))
1217 return -EFAULT;
1218
1219 return dev->ethtool_ops->set_pauseparam(dev, &pauseparam);
1220}
1221
1da177e4
LT		 1222static int ethtool_self_test(struct net_device *dev, char __user *useraddr)
1223{
1224 struct ethtool_test test;
76fd8593 1225 const struct ethtool_ops *ops = dev->ethtool_ops;
1da177e4 1226 u64 *data;
ff03d49f 1227 int ret, test_len;
1da177e4 1228
a9828ec6 1229 if (!ops->self_test || !ops->get_sset_count)
1da177e4
LT		 1230 return -EOPNOTSUPP;
1231
a9828ec6 1232 test_len = ops->get_sset_count(dev, ETH_SS_TEST);
ff03d49f
JG		 1233 if (test_len < 0)
1234 return test_len;
1235 WARN_ON(test_len == 0);
1236
1da177e4
LT		 1237 if (copy_from_user(&test, useraddr, sizeof(test)))
1238 return -EFAULT;
1239
ff03d49f
JG		 1240 test.len = test_len;
1241 data = kmalloc(test_len * sizeof(u64), GFP_USER);
1da177e4
LT		 1242 if (!data)
1243 return -ENOMEM;
1244
1245 ops->self_test(dev, &test, data);
1246
1247 ret = -EFAULT;
1248 if (copy_to_user(useraddr, &test, sizeof(test)))
1249 goto out;
1250 useraddr += sizeof(test);
1251 if (copy_to_user(useraddr, data, test.len * sizeof(u64)))
1252 goto out;
1253 ret = 0;
1254
1255 out:
1256 kfree(data);
1257 return ret;
1258}
1259
1260static int ethtool_get_strings(struct net_device *dev, void __user *useraddr)
1261{
1262 struct ethtool_gstrings gstrings;
1da177e4
LT		 1263 u8 *data;
1264 int ret;
1265
1da177e4
LT		 1266 if (copy_from_user(&gstrings, useraddr, sizeof(gstrings)))
1267 return -EFAULT;
1268
340ae165 1269 ret = __ethtool_get_sset_count(dev, gstrings.string_set);
a9828ec6
BH		 1270 if (ret < 0)
1271 return ret;
1272
1273 gstrings.len = ret;
1da177e4
LT		 1274
1275 data = kmalloc(gstrings.len * ETH_GSTRING_LEN, GFP_USER);
1276 if (!data)
1277 return -ENOMEM;
1278
340ae165 1279 __ethtool_get_strings(dev, gstrings.string_set, data);
1da177e4
LT		 1280
1281 ret = -EFAULT;
1282 if (copy_to_user(useraddr, &gstrings, sizeof(gstrings)))
1283 goto out;
1284 useraddr += sizeof(gstrings);
1285 if (copy_to_user(useraddr, data, gstrings.len * ETH_GSTRING_LEN))
1286 goto out;
1287 ret = 0;
1288
340ae165 1289out:
1da177e4
LT		 1290 kfree(data);
1291 return ret;
1292}
1293
1294static int ethtool_phys_id(struct net_device *dev, void __user *useraddr)
1295{
1296 struct ethtool_value id;
68f512f2 1297 static bool busy;
c03a14e8 1298 const struct ethtool_ops *ops = dev->ethtool_ops;
68f512f2 1299 int rc;
1da177e4 1300
c03a14e8 1301 if (!ops->set_phys_id)
1da177e4
LT		 1302 return -EOPNOTSUPP;
1303
68f512f2
BH		 1304 if (busy)
1305 return -EBUSY;
1306
1da177e4
LT		 1307 if (copy_from_user(&id, useraddr, sizeof(id)))
1308 return -EFAULT;
1309
c03a14e8 1310 rc = ops->set_phys_id(dev, ETHTOOL_ID_ACTIVE);
fce55922 1311 if (rc < 0)
68f512f2
BH		 1312 return rc;
1313
1314 /* Drop the RTNL lock while waiting, but prevent reentry or
1315 * removal of the device.
1316 */
1317 busy = true;
1318 dev_hold(dev);
1319 rtnl_unlock();
1320
1321 if (rc == 0) {
1322 /* Driver will handle this itself */
1323 schedule_timeout_interruptible(
143780c6 1324 id.data ? (id.data * HZ) : MAX_SCHEDULE_TIMEOUT);
68f512f2 1325 } else {
fce55922
AB		 1326 /* Driver expects to be called at twice the frequency in rc */
1327 int n = rc * 2, i, interval = HZ / n;
1328
1329 /* Count down seconds */
68f512f2 1330 do {
fce55922
AB		 1331 /* Count down iterations per second */
1332 i = n;
1333 do {
1334 rtnl_lock();
c03a14e8 1335 rc = ops->set_phys_id(dev,
fce55922
AB		 1336 (i & 1) ? ETHTOOL_ID_OFF : ETHTOOL_ID_ON);
1337 rtnl_unlock();
1338 if (rc)
1339 break;
1340 schedule_timeout_interruptible(interval);
1341 } while (!signal_pending(current) && --i != 0);
68f512f2
BH		 1342 } while (!signal_pending(current) &&
1343 (id.data == 0 || --id.data != 0));
1344 }
1345
1346 rtnl_lock();
1347 dev_put(dev);
1348 busy = false;
1349
c03a14e8 1350 (void) ops->set_phys_id(dev, ETHTOOL_ID_INACTIVE);
68f512f2 1351 return rc;
1da177e4
LT		 1352}
1353
1354static int ethtool_get_stats(struct net_device *dev, void __user *useraddr)
1355{
1356 struct ethtool_stats stats;
76fd8593 1357 const struct ethtool_ops *ops = dev->ethtool_ops;
1da177e4 1358 u64 *data;
ff03d49f 1359 int ret, n_stats;
1da177e4 1360
a9828ec6 1361 if (!ops->get_ethtool_stats || !ops->get_sset_count)
1da177e4
LT		 1362 return -EOPNOTSUPP;
1363
a9828ec6 1364 n_stats = ops->get_sset_count(dev, ETH_SS_STATS);
ff03d49f
JG		 1365 if (n_stats < 0)
1366 return n_stats;
1367 WARN_ON(n_stats == 0);
1368
1da177e4
LT		 1369 if (copy_from_user(&stats, useraddr, sizeof(stats)))
1370 return -EFAULT;
1371
ff03d49f
JG		 1372 stats.n_stats = n_stats;
1373 data = kmalloc(n_stats * sizeof(u64), GFP_USER);
1da177e4
LT		 1374 if (!data)
1375 return -ENOMEM;
1376
1377 ops->get_ethtool_stats(dev, &stats, data);
1378
1379 ret = -EFAULT;
1380 if (copy_to_user(useraddr, &stats, sizeof(stats)))
1381 goto out;
1382 useraddr += sizeof(stats);
1383 if (copy_to_user(useraddr, data, stats.n_stats * sizeof(u64)))
1384 goto out;
1385 ret = 0;
1386
1387 out:
1388 kfree(data);
1389 return ret;
1390}
1391
0bf0519d 1392static int ethtool_get_perm_addr(struct net_device *dev, void __user *useraddr)
a6f9a705
JW		 1393{
1394 struct ethtool_perm_addr epaddr;
a6f9a705 1395
313674af 1396 if (copy_from_user(&epaddr, useraddr, sizeof(epaddr)))
a6f9a705
JW		 1397 return -EFAULT;
1398
313674af
MW		 1399 if (epaddr.size < dev->addr_len)
1400 return -ETOOSMALL;
1401 epaddr.size = dev->addr_len;
a6f9a705 1402
a6f9a705 1403 if (copy_to_user(useraddr, &epaddr, sizeof(epaddr)))
313674af 1404 return -EFAULT;
a6f9a705 1405 useraddr += sizeof(epaddr);
313674af
MW		 1406 if (copy_to_user(useraddr, dev->perm_addr, epaddr.size))
1407 return -EFAULT;
1408 return 0;
a6f9a705
JW		 1409}
1410
13c99b24
JG		 1411static int ethtool_get_value(struct net_device *dev, char __user *useraddr,
1412 u32 cmd, u32 (*actor)(struct net_device *))
3ae7c0b2 1413{
8e557421 1414 struct ethtool_value edata = { .cmd = cmd };
3ae7c0b2 1415
13c99b24 1416 if (!actor)
3ae7c0b2
JG		 1417 return -EOPNOTSUPP;
1418
13c99b24 1419 edata.data = actor(dev);
3ae7c0b2
JG		 1420
1421 if (copy_to_user(useraddr, &edata, sizeof(edata)))
1422 return -EFAULT;
1423 return 0;
1424}
1425
13c99b24
JG		 1426static int ethtool_set_value_void(struct net_device *dev, char __user *useraddr,
1427 void (*actor)(struct net_device *, u32))
3ae7c0b2
JG		 1428{
1429 struct ethtool_value edata;
1430
13c99b24 1431 if (!actor)
3ae7c0b2
JG		 1432 return -EOPNOTSUPP;
1433
1434 if (copy_from_user(&edata, useraddr, sizeof(edata)))
1435 return -EFAULT;
1436
13c99b24 1437 actor(dev, edata.data);
339bf024
JG		 1438 return 0;
1439}
1440
13c99b24
JG		 1441static int ethtool_set_value(struct net_device *dev, char __user *useraddr,
1442 int (*actor)(struct net_device *, u32))
339bf024
JG		 1443{
1444 struct ethtool_value edata;
1445
13c99b24 1446 if (!actor)
339bf024
JG		 1447 return -EOPNOTSUPP;
1448
1449 if (copy_from_user(&edata, useraddr, sizeof(edata)))
1450 return -EFAULT;
1451
13c99b24 1452 return actor(dev, edata.data);
339bf024
JG		 1453}
1454
97f8aefb 1455static noinline_for_stack int ethtool_flash_device(struct net_device *dev,
1456 char __user *useraddr)
05c6a8d7
AK		 1457{
1458 struct ethtool_flash efl;
1459
1460 if (copy_from_user(&efl, useraddr, sizeof(efl)))
1461 return -EFAULT;
1462
1463 if (!dev->ethtool_ops->flash_device)
1464 return -EOPNOTSUPP;
1465
786f5281
BH		 1466 efl.data[ETHTOOL_FLASH_MAX_FILENAME - 1] = 0;
1467
05c6a8d7
AK		 1468 return dev->ethtool_ops->flash_device(dev, &efl);
1469}
1470
29dd54b7
AC		 1471static int ethtool_set_dump(struct net_device *dev,
1472 void __user *useraddr)
1473{
1474 struct ethtool_dump dump;
1475
1476 if (!dev->ethtool_ops->set_dump)
1477 return -EOPNOTSUPP;
1478
1479 if (copy_from_user(&dump, useraddr, sizeof(dump)))
1480 return -EFAULT;
1481
1482 return dev->ethtool_ops->set_dump(dev, &dump);
1483}
1484
1485static int ethtool_get_dump_flag(struct net_device *dev,
1486 void __user *useraddr)
1487{
1488 int ret;
1489 struct ethtool_dump dump;
1490 const struct ethtool_ops *ops = dev->ethtool_ops;
1491
c03a14e8 1492 if (!ops->get_dump_flag)
29dd54b7
AC		 1493 return -EOPNOTSUPP;
1494
1495 if (copy_from_user(&dump, useraddr, sizeof(dump)))
1496 return -EFAULT;
1497
1498 ret = ops->get_dump_flag(dev, &dump);
1499 if (ret)
1500 return ret;
1501
1502 if (copy_to_user(useraddr, &dump, sizeof(dump)))
1503 return -EFAULT;
1504 return 0;
1505}
1506
1507static int ethtool_get_dump_data(struct net_device *dev,
1508 void __user *useraddr)
1509{
1510 int ret;
1511 __u32 len;
1512 struct ethtool_dump dump, tmp;
1513 const struct ethtool_ops *ops = dev->ethtool_ops;
1514 void *data = NULL;
1515
c03a14e8 1516 if (!ops->get_dump_data || !ops->get_dump_flag)
29dd54b7
AC		 1517 return -EOPNOTSUPP;
1518
1519 if (copy_from_user(&dump, useraddr, sizeof(dump)))
1520 return -EFAULT;
1521
1522 memset(&tmp, 0, sizeof(tmp));
1523 tmp.cmd = ETHTOOL_GET_DUMP_FLAG;
1524 ret = ops->get_dump_flag(dev, &tmp);
1525 if (ret)
1526 return ret;
1527
c590b5e2 1528 len = min(tmp.len, dump.len);
29dd54b7
AC		 1529 if (!len)
1530 return -EFAULT;
1531
c590b5e2
MS		 1532 /* Don't ever let the driver think there's more space available
1533 * than it requested with .get_dump_flag().
1534 */
1535 dump.len = len;
1536
1537 /* Always allocate enough space to hold the whole thing so that the
1538 * driver does not need to check the length and bother with partial
1539 * dumping.
1540 */
29dd54b7
AC		 1541 data = vzalloc(tmp.len);
1542 if (!data)
1543 return -ENOMEM;
1544 ret = ops->get_dump_data(dev, &dump, data);
1545 if (ret)
1546 goto out;
1547
c590b5e2
MS		 1548 /* There are two sane possibilities:
1549 * 1. The driver's .get_dump_data() does not touch dump.len.
1550 * 2. Or it may set dump.len to how much it really writes, which
1551 * should be tmp.len (or len if it can do a partial dump).
1552 * In any case respond to userspace with the actual length of data
1553 * it's receiving.
1554 */
1555 WARN_ON(dump.len != len && dump.len != tmp.len);
1556 dump.len = len;
1557
29dd54b7
AC		 1558 if (copy_to_user(useraddr, &dump, sizeof(dump))) {
1559 ret = -EFAULT;
1560 goto out;
1561 }
1562 useraddr += offsetof(struct ethtool_dump, data);
1563 if (copy_to_user(useraddr, data, len))
1564 ret = -EFAULT;
1565out:
1566 vfree(data);
1567 return ret;
1568}
1569
c8f3a8c3
RC		 1570static int ethtool_get_ts_info(struct net_device *dev, void __user *useraddr)
1571{
1572 int err = 0;
1573 struct ethtool_ts_info info;
1574 const struct ethtool_ops *ops = dev->ethtool_ops;
1575 struct phy_device *phydev = dev->phydev;
1576
1577 memset(&info, 0, sizeof(info));
1578 info.cmd = ETHTOOL_GET_TS_INFO;
1579
1580 if (phydev && phydev->drv && phydev->drv->ts_info) {
c8f3a8c3 1581 err = phydev->drv->ts_info(phydev, &info);
c03a14e8 1582 } else if (ops->get_ts_info) {
c8f3a8c3 1583 err = ops->get_ts_info(dev, &info);
c8f3a8c3
RC		 1584 } else {
1585 info.so_timestamping =
1586 SOF_TIMESTAMPING_RX_SOFTWARE |
1587 SOF_TIMESTAMPING_SOFTWARE;
1588 info.phc_index = -1;
1589 }
1590
1591 if (err)
1592 return err;
1593
1594 if (copy_to_user(useraddr, &info, sizeof(info)))
1595 err = -EFAULT;
1596
1597 return err;
1598}
1599
41c3cb6d
SH		 1600static int ethtool_get_module_info(struct net_device *dev,
1601 void __user *useraddr)
1602{
1603 int ret;
1604 struct ethtool_modinfo modinfo;
1605 const struct ethtool_ops *ops = dev->ethtool_ops;
1606
1607 if (!ops->get_module_info)
1608 return -EOPNOTSUPP;
1609
1610 if (copy_from_user(&modinfo, useraddr, sizeof(modinfo)))
1611 return -EFAULT;
1612
1613 ret = ops->get_module_info(dev, &modinfo);
1614 if (ret)
1615 return ret;
1616
1617 if (copy_to_user(useraddr, &modinfo, sizeof(modinfo)))
1618 return -EFAULT;
1619
1620 return 0;
1621}
1622
1623static int ethtool_get_module_eeprom(struct net_device *dev,
1624 void __user *useraddr)
1625{
1626 int ret;
1627 struct ethtool_modinfo modinfo;
1628 const struct ethtool_ops *ops = dev->ethtool_ops;
1629
1630 if (!ops->get_module_info || !ops->get_module_eeprom)
1631 return -EOPNOTSUPP;
1632
1633 ret = ops->get_module_info(dev, &modinfo);
1634 if (ret)
1635 return ret;
1636
1637 return ethtool_get_any_eeprom(dev, useraddr, ops->get_module_eeprom,
1638 modinfo.eeprom_len);
1639}
1640
600fed5e 1641/* The main entry point in this file. Called from net/core/dev_ioctl.c */
1da177e4 1642
881d966b 1643int dev_ethtool(struct net *net, struct ifreq *ifr)
1da177e4 1644{
881d966b 1645 struct net_device *dev = __dev_get_by_name(net, ifr->ifr_name);
1da177e4
LT		 1646 void __user *useraddr = ifr->ifr_data;
1647 u32 ethcmd;
1648 int rc;
b29d3145 1649 netdev_features_t old_features;
1da177e4 1650
1da177e4
LT		 1651 if (!dev || !netif_device_present(dev))
1652 return -ENODEV;
1653
97f8aefb 1654 if (copy_from_user(&ethcmd, useraddr, sizeof(ethcmd)))
1da177e4
LT		 1655 return -EFAULT;
1656
75f3123c 1657 /* Allow some commands to be done by anyone */
97f8aefb 1658 switch (ethcmd) {
0fdc100b 1659 case ETHTOOL_GSET:
75f3123c 1660 case ETHTOOL_GDRVINFO:
75f3123c 1661 case ETHTOOL_GMSGLVL:
2da45db2 1662 case ETHTOOL_GLINK:
75f3123c
SH		 1663 case ETHTOOL_GCOALESCE:
1664 case ETHTOOL_GRINGPARAM:
1665 case ETHTOOL_GPAUSEPARAM:
1666 case ETHTOOL_GRXCSUM:
1667 case ETHTOOL_GTXCSUM:
1668 case ETHTOOL_GSG:
f80400a2 1669 case ETHTOOL_GSSET_INFO:
75f3123c 1670 case ETHTOOL_GSTRINGS:
2da45db2 1671 case ETHTOOL_GSTATS:
75f3123c
SH		 1672 case ETHTOOL_GTSO:
1673 case ETHTOOL_GPERMADDR:
1674 case ETHTOOL_GUFO:
1675 case ETHTOOL_GGSO:
1cab819b 1676 case ETHTOOL_GGRO:
339bf024
JG		 1677 case ETHTOOL_GFLAGS:
1678 case ETHTOOL_GPFLAGS:
0853ad66 1679 case ETHTOOL_GRXFH:
59089d8d
SB		 1680 case ETHTOOL_GRXRINGS:
1681 case ETHTOOL_GRXCLSRLCNT:
1682 case ETHTOOL_GRXCLSRULE:
1683 case ETHTOOL_GRXCLSRLALL:
2da45db2 1684 case ETHTOOL_GRXFHINDIR:
3de0b592 1685 case ETHTOOL_GRSSH:
5455c699 1686 case ETHTOOL_GFEATURES:
2da45db2 1687 case ETHTOOL_GCHANNELS:
c8f3a8c3 1688 case ETHTOOL_GET_TS_INFO:
2da45db2 1689 case ETHTOOL_GEEE:
75f3123c
SH		 1690 break;
1691 default:
5e1fccc0 1692 if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
75f3123c
SH		 1693 return -EPERM;
1694 }
1695
97f8aefb 1696 if (dev->ethtool_ops->begin) {
1697 rc = dev->ethtool_ops->begin(dev);
1698 if (rc < 0)
1da177e4 1699 return rc;
97f8aefb 1700 }
d8a33ac4
SH		 1701 old_features = dev->features;
1702
1da177e4
LT		 1703 switch (ethcmd) {
1704 case ETHTOOL_GSET:
1705 rc = ethtool_get_settings(dev, useraddr);
1706 break;
1707 case ETHTOOL_SSET:
1708 rc = ethtool_set_settings(dev, useraddr);
1709 break;
1710 case ETHTOOL_GDRVINFO:
1711 rc = ethtool_get_drvinfo(dev, useraddr);
1da177e4
LT		 1712 break;
1713 case ETHTOOL_GREGS:
1714 rc = ethtool_get_regs(dev, useraddr);
1715 break;
1716 case ETHTOOL_GWOL:
1717 rc = ethtool_get_wol(dev, useraddr);
1718 break;
1719 case ETHTOOL_SWOL:
1720 rc = ethtool_set_wol(dev, useraddr);
1721 break;
1722 case ETHTOOL_GMSGLVL:
13c99b24
JG		 1723 rc = ethtool_get_value(dev, useraddr, ethcmd,
1724 dev->ethtool_ops->get_msglevel);
1da177e4
LT		 1725 break;
1726 case ETHTOOL_SMSGLVL:
13c99b24
JG		 1727 rc = ethtool_set_value_void(dev, useraddr,
1728 dev->ethtool_ops->set_msglevel);
1da177e4 1729 break;
80f12ecc
YM		 1730 case ETHTOOL_GEEE:
1731 rc = ethtool_get_eee(dev, useraddr);
1732 break;
1733 case ETHTOOL_SEEE:
1734 rc = ethtool_set_eee(dev, useraddr);
1735 break;
1da177e4
LT		 1736 case ETHTOOL_NWAY_RST:
1737 rc = ethtool_nway_reset(dev);
1738 break;
1739 case ETHTOOL_GLINK:
e596e6e4 1740 rc = ethtool_get_link(dev, useraddr);
1da177e4
LT		 1741 break;
1742 case ETHTOOL_GEEPROM:
1743 rc = ethtool_get_eeprom(dev, useraddr);
1744 break;
1745 case ETHTOOL_SEEPROM:
1746 rc = ethtool_set_eeprom(dev, useraddr);
1747 break;
1748 case ETHTOOL_GCOALESCE:
1749 rc = ethtool_get_coalesce(dev, useraddr);
1750 break;
1751 case ETHTOOL_SCOALESCE:
1752 rc = ethtool_set_coalesce(dev, useraddr);
1753 break;
1754 case ETHTOOL_GRINGPARAM:
1755 rc = ethtool_get_ringparam(dev, useraddr);
1756 break;
1757 case ETHTOOL_SRINGPARAM:
1758 rc = ethtool_set_ringparam(dev, useraddr);
1759 break;
1760 case ETHTOOL_GPAUSEPARAM:
1761 rc = ethtool_get_pauseparam(dev, useraddr);
1762 break;
1763 case ETHTOOL_SPAUSEPARAM:
1764 rc = ethtool_set_pauseparam(dev, useraddr);
1765 break;
1da177e4
LT		 1766 case ETHTOOL_TEST:
1767 rc = ethtool_self_test(dev, useraddr);
1768 break;
1769 case ETHTOOL_GSTRINGS:
1770 rc = ethtool_get_strings(dev, useraddr);
1771 break;
1772 case ETHTOOL_PHYS_ID:
1773 rc = ethtool_phys_id(dev, useraddr);
1774 break;
1775 case ETHTOOL_GSTATS:
1776 rc = ethtool_get_stats(dev, useraddr);
1777 break;
a6f9a705
JW		 1778 case ETHTOOL_GPERMADDR:
1779 rc = ethtool_get_perm_addr(dev, useraddr);
1780 break;
3ae7c0b2 1781 case ETHTOOL_GFLAGS:
13c99b24 1782 rc = ethtool_get_value(dev, useraddr, ethcmd,
bc5787c6 1783 __ethtool_get_flags);
3ae7c0b2
JG		 1784 break;
1785 case ETHTOOL_SFLAGS:
da8ac86c 1786 rc = ethtool_set_value(dev, useraddr, __ethtool_set_flags);
3ae7c0b2 1787 break;
339bf024 1788 case ETHTOOL_GPFLAGS:
13c99b24
JG		 1789 rc = ethtool_get_value(dev, useraddr, ethcmd,
1790 dev->ethtool_ops->get_priv_flags);
339bf024
JG		 1791 break;
1792 case ETHTOOL_SPFLAGS:
13c99b24
JG		 1793 rc = ethtool_set_value(dev, useraddr,
1794 dev->ethtool_ops->set_priv_flags);
339bf024 1795 break;
0853ad66 1796 case ETHTOOL_GRXFH:
59089d8d
SB		 1797 case ETHTOOL_GRXRINGS:
1798 case ETHTOOL_GRXCLSRLCNT:
1799 case ETHTOOL_GRXCLSRULE:
1800 case ETHTOOL_GRXCLSRLALL:
bf988435 1801 rc = ethtool_get_rxnfc(dev, ethcmd, useraddr);
0853ad66
SB		 1802 break;
1803 case ETHTOOL_SRXFH:
59089d8d
SB		 1804 case ETHTOOL_SRXCLSRLDEL:
1805 case ETHTOOL_SRXCLSRLINS:
bf988435 1806 rc = ethtool_set_rxnfc(dev, ethcmd, useraddr);
0853ad66 1807 break;
05c6a8d7
AK		 1808 case ETHTOOL_FLASHDEV:
1809 rc = ethtool_flash_device(dev, useraddr);
1810 break;
d73d3a8c
BH		 1811 case ETHTOOL_RESET:
1812 rc = ethtool_reset(dev, useraddr);
1813 break;
723b2f57
JG		 1814 case ETHTOOL_GSSET_INFO:
1815 rc = ethtool_get_sset_info(dev, useraddr);
1816 break;
a5b6ee29
BH		 1817 case ETHTOOL_GRXFHINDIR:
1818 rc = ethtool_get_rxfh_indir(dev, useraddr);
1819 break;
1820 case ETHTOOL_SRXFHINDIR:
1821 rc = ethtool_set_rxfh_indir(dev, useraddr);
1822 break;
3de0b592
VD		 1823 case ETHTOOL_GRSSH:
1824 rc = ethtool_get_rxfh(dev, useraddr);
1825 break;
1826 case ETHTOOL_SRSSH:
1827 rc = ethtool_set_rxfh(dev, useraddr);
1828 break;
5455c699
MM		 1829 case ETHTOOL_GFEATURES:
1830 rc = ethtool_get_features(dev, useraddr);
1831 break;
1832 case ETHTOOL_SFEATURES:
1833 rc = ethtool_set_features(dev, useraddr);
1834 break;
0a417704 1835 case ETHTOOL_GTXCSUM:
e83d360d 1836 case ETHTOOL_GRXCSUM:
0a417704
MM		 1837 case ETHTOOL_GSG:
1838 case ETHTOOL_GTSO:
1839 case ETHTOOL_GUFO:
1840 case ETHTOOL_GGSO:
1841 case ETHTOOL_GGRO:
1842 rc = ethtool_get_one_feature(dev, useraddr, ethcmd);
1843 break;
1844 case ETHTOOL_STXCSUM:
e83d360d 1845 case ETHTOOL_SRXCSUM:
0a417704
MM		 1846 case ETHTOOL_SSG:
1847 case ETHTOOL_STSO:
1848 case ETHTOOL_SUFO:
1849 case ETHTOOL_SGSO:
1850 case ETHTOOL_SGRO:
1851 rc = ethtool_set_one_feature(dev, useraddr, ethcmd);
1852 break;
8b5933c3 1853 case ETHTOOL_GCHANNELS:
1854 rc = ethtool_get_channels(dev, useraddr);
1855 break;
1856 case ETHTOOL_SCHANNELS:
1857 rc = ethtool_set_channels(dev, useraddr);
1858 break;
29dd54b7
AC		 1859 case ETHTOOL_SET_DUMP:
1860 rc = ethtool_set_dump(dev, useraddr);
1861 break;
1862 case ETHTOOL_GET_DUMP_FLAG:
1863 rc = ethtool_get_dump_flag(dev, useraddr);
1864 break;
1865 case ETHTOOL_GET_DUMP_DATA:
1866 rc = ethtool_get_dump_data(dev, useraddr);
1867 break;
c8f3a8c3
RC		 1868 case ETHTOOL_GET_TS_INFO:
1869 rc = ethtool_get_ts_info(dev, useraddr);
1870 break;
41c3cb6d
SH		 1871 case ETHTOOL_GMODULEINFO:
1872 rc = ethtool_get_module_info(dev, useraddr);
1873 break;
1874 case ETHTOOL_GMODULEEEPROM:
1875 rc = ethtool_get_module_eeprom(dev, useraddr);
1876 break;
1da177e4 1877 default:
61a44b9c 1878 rc = -EOPNOTSUPP;
1da177e4 1879 }
4ec93edb 1880
e71a4783 1881 if (dev->ethtool_ops->complete)
1da177e4 1882 dev->ethtool_ops->complete(dev);
d8a33ac4
SH		 1883
1884 if (old_features != dev->features)
1885 netdev_features_change(dev);
1886
1da177e4 1887 return rc;
1da177e4 1888}
Linux kernel - Deliverables
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