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include/linux/phy/phy.h: fix minor kerneldoc errors
[mirror_ubuntu-eoan-kernel.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>
e679c9c1 25#include <linux/sfp.h>
5a0e3ad6 26#include <linux/slab.h>
68f512f2 27#include <linux/rtnetlink.h>
174cd4b1 28#include <linux/sched/signal.h>
960fb622 29#include <linux/net.h>
1661d346 30#include <net/xdp_sock.h>
1da177e4 31
4ec93edb 32/*
1da177e4
LT		 33 * Some useful ethtool_ops methods that're device independent.
34 * If we find that all drivers want to do the same thing here,
35 * we can turn these into dev_() function calls.
36 */
37
38u32 ethtool_op_get_link(struct net_device *dev)
39{
40 return netif_carrier_ok(dev) ? 1 : 0;
41}
97f8aefb 42EXPORT_SYMBOL(ethtool_op_get_link);
1da177e4 43
02eacbd0
RC		 44int ethtool_op_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info)
45{
46 info->so_timestamping =
47 SOF_TIMESTAMPING_TX_SOFTWARE |
48 SOF_TIMESTAMPING_RX_SOFTWARE |
49 SOF_TIMESTAMPING_SOFTWARE;
50 info->phc_index = -1;
51 return 0;
52}
53EXPORT_SYMBOL(ethtool_op_get_ts_info);
54
1da177e4
LT		 55/* Handlers for each ethtool command */
56
475414f6 57#define ETHTOOL_DEV_FEATURE_WORDS ((NETDEV_FEATURE_COUNT + 31) / 32)
5455c699 58
9d921549
MM		 59static const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN] = {
60 [NETIF_F_SG_BIT] = "tx-scatter-gather",
61 [NETIF_F_IP_CSUM_BIT] = "tx-checksum-ipv4",
9d921549
MM		 62 [NETIF_F_HW_CSUM_BIT] = "tx-checksum-ip-generic",
63 [NETIF_F_IPV6_CSUM_BIT] = "tx-checksum-ipv6",
64 [NETIF_F_HIGHDMA_BIT] = "highdma",
65 [NETIF_F_FRAGLIST_BIT] = "tx-scatter-gather-fraglist",
788dfcac 66 [NETIF_F_HW_VLAN_CTAG_TX_BIT] = "tx-vlan-hw-insert",
9d921549 67
788dfcac
FLVC		 68 [NETIF_F_HW_VLAN_CTAG_RX_BIT] = "rx-vlan-hw-parse",
69 [NETIF_F_HW_VLAN_CTAG_FILTER_BIT] = "rx-vlan-filter",
2d6577f1
DM		 70 [NETIF_F_HW_VLAN_STAG_TX_BIT] = "tx-vlan-stag-hw-insert",
71 [NETIF_F_HW_VLAN_STAG_RX_BIT] = "rx-vlan-stag-hw-parse",
72 [NETIF_F_HW_VLAN_STAG_FILTER_BIT] = "rx-vlan-stag-filter",
9d921549
MM		 73 [NETIF_F_VLAN_CHALLENGED_BIT] = "vlan-challenged",
74 [NETIF_F_GSO_BIT] = "tx-generic-segmentation",
75 [NETIF_F_LLTX_BIT] = "tx-lockless",
76 [NETIF_F_NETNS_LOCAL_BIT] = "netns-local",
77 [NETIF_F_GRO_BIT] = "rx-gro",
fb1f5f79 78 [NETIF_F_GRO_HW_BIT] = "rx-gro-hw",
9d921549
MM		 79 [NETIF_F_LRO_BIT] = "rx-lro",
80
81 [NETIF_F_TSO_BIT] = "tx-tcp-segmentation",
9d921549
MM		 82 [NETIF_F_GSO_ROBUST_BIT] = "tx-gso-robust",
83 [NETIF_F_TSO_ECN_BIT] = "tx-tcp-ecn-segmentation",
cbc53e08 84 [NETIF_F_TSO_MANGLEID_BIT] = "tx-tcp-mangleid-segmentation",
9d921549
MM		 85 [NETIF_F_TSO6_BIT] = "tx-tcp6-segmentation",
86 [NETIF_F_FSO_BIT] = "tx-fcoe-segmentation",
68c33163 87 [NETIF_F_GSO_GRE_BIT] = "tx-gre-segmentation",
518f213d 88 [NETIF_F_GSO_GRE_CSUM_BIT] = "tx-gre-csum-segmentation",
7e13318d
TH		 89 [NETIF_F_GSO_IPXIP4_BIT] = "tx-ipxip4-segmentation",
90 [NETIF_F_GSO_IPXIP6_BIT] = "tx-ipxip6-segmentation",
73136267 91 [NETIF_F_GSO_UDP_TUNNEL_BIT] = "tx-udp_tnl-segmentation",
518f213d 92 [NETIF_F_GSO_UDP_TUNNEL_CSUM_BIT] = "tx-udp_tnl-csum-segmentation",
802ab55a 93 [NETIF_F_GSO_PARTIAL_BIT] = "tx-gso-partial",
90017acc 94 [NETIF_F_GSO_SCTP_BIT] = "tx-sctp-segmentation",
c7ef8f0c 95 [NETIF_F_GSO_ESP_BIT] = "tx-esp-segmentation",
83aa025f 96 [NETIF_F_GSO_UDP_L4_BIT] = "tx-udp-segmentation",
9d921549
MM		 97
98 [NETIF_F_FCOE_CRC_BIT] = "tx-checksum-fcoe-crc",
53692b1d 99 [NETIF_F_SCTP_CRC_BIT] = "tx-checksum-sctp",
9d921549
MM		 100 [NETIF_F_FCOE_MTU_BIT] = "fcoe-mtu",
101 [NETIF_F_NTUPLE_BIT] = "rx-ntuple-filter",
102 [NETIF_F_RXHASH_BIT] = "rx-hashing",
103 [NETIF_F_RXCSUM_BIT] = "rx-checksum",
104 [NETIF_F_NOCACHE_COPY_BIT] = "tx-nocache-copy",
105 [NETIF_F_LOOPBACK_BIT] = "loopback",
36eabda3 106 [NETIF_F_RXFCS_BIT] = "rx-fcs",
5e0c03c8 107 [NETIF_F_RXALL_BIT] = "rx-all",
a6cc0cfa 108 [NETIF_F_HW_L2FW_DOFFLOAD_BIT] = "l2-fwd-offload",
1c78c64e 109 [NETIF_F_HW_TC_BIT] = "hw-tc-offload",
c7ef8f0c
SK		 110 [NETIF_F_HW_ESP_BIT] = "esp-hw-offload",
111 [NETIF_F_HW_ESP_TX_CSUM_BIT] = "esp-tx-csum-hw-offload",
d764a122 112 [NETIF_F_RX_UDP_TUNNEL_PORT_BIT] = "rx-udp_tunnel-port-offload",
e0be6bea 113 [NETIF_F_HW_TLS_RECORD_BIT] = "tls-hw-record",
2342a851 114 [NETIF_F_HW_TLS_TX_BIT] = "tls-hw-tx-offload",
14136564 115 [NETIF_F_HW_TLS_RX_BIT] = "tls-hw-rx-offload",
9d921549
MM		 116};
117
892311f6
EP		 118static const char
119rss_hash_func_strings[ETH_RSS_HASH_FUNCS_COUNT][ETH_GSTRING_LEN] = {
120 [ETH_RSS_HASH_TOP_BIT] = "toeplitz",
121 [ETH_RSS_HASH_XOR_BIT] = "xor",
abb521e3 122 [ETH_RSS_HASH_CRC32_BIT] = "crc32",
892311f6
EP		 123};
124
a4244b0c
HHZ		 125static const char
126tunable_strings[__ETHTOOL_TUNABLE_COUNT][ETH_GSTRING_LEN] = {
127 [ETHTOOL_ID_UNSPEC] = "Unspec",
128 [ETHTOOL_RX_COPYBREAK] = "rx-copybreak",
129 [ETHTOOL_TX_COPYBREAK] = "tx-copybreak",
e1577c1c 130 [ETHTOOL_PFC_PREVENTION_TOUT] = "pfc-prevention-tout",
a4244b0c
HHZ		 131};
132
968ad9da
RL		 133static const char
134phy_tunable_strings[__ETHTOOL_PHY_TUNABLE_COUNT][ETH_GSTRING_LEN] = {
135 [ETHTOOL_ID_UNSPEC] = "Unspec",
65feddd5 136 [ETHTOOL_PHY_DOWNSHIFT] = "phy-downshift",
968ad9da
RL		 137};
138
5455c699
MM		 139static int ethtool_get_features(struct net_device *dev, void __user *useraddr)
140{
141 struct ethtool_gfeatures cmd = {
142 .cmd = ETHTOOL_GFEATURES,
143 .size = ETHTOOL_DEV_FEATURE_WORDS,
144 };
475414f6 145 struct ethtool_get_features_block features[ETHTOOL_DEV_FEATURE_WORDS];
5455c699
MM		 146 u32 __user *sizeaddr;
147 u32 copy_size;
475414f6
MM		 148 int i;
149
150 /* in case feature bits run out again */
09da71b1 151 BUILD_BUG_ON(ETHTOOL_DEV_FEATURE_WORDS * sizeof(u32) > sizeof(netdev_features_t));
475414f6
MM		 152
153 for (i = 0; i < ETHTOOL_DEV_FEATURE_WORDS; ++i) {
09da71b1
MM		 154 features[i].available = (u32)(dev->hw_features >> (32 * i));
155 features[i].requested = (u32)(dev->wanted_features >> (32 * i));
156 features[i].active = (u32)(dev->features >> (32 * i));
157 features[i].never_changed =
158 (u32)(NETIF_F_NEVER_CHANGE >> (32 * i));
475414f6 159 }
5455c699
MM		 160
161 sizeaddr = useraddr + offsetof(struct ethtool_gfeatures, size);
162 if (get_user(copy_size, sizeaddr))
163 return -EFAULT;
164
165 if (copy_size > ETHTOOL_DEV_FEATURE_WORDS)
166 copy_size = ETHTOOL_DEV_FEATURE_WORDS;
167
168 if (copy_to_user(useraddr, &cmd, sizeof(cmd)))
169 return -EFAULT;
170 useraddr += sizeof(cmd);
171 if (copy_to_user(useraddr, features, copy_size * sizeof(*features)))
172 return -EFAULT;
173
174 return 0;
175}
176
177static int ethtool_set_features(struct net_device *dev, void __user *useraddr)
178{
179 struct ethtool_sfeatures cmd;
180 struct ethtool_set_features_block features[ETHTOOL_DEV_FEATURE_WORDS];
475414f6
MM		 181 netdev_features_t wanted = 0, valid = 0;
182 int i, ret = 0;
5455c699
MM		 183
184 if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
185 return -EFAULT;
186 useraddr += sizeof(cmd);
187
188 if (cmd.size != ETHTOOL_DEV_FEATURE_WORDS)
189 return -EINVAL;
190
191 if (copy_from_user(features, useraddr, sizeof(features)))
192 return -EFAULT;
193
475414f6 194 for (i = 0; i < ETHTOOL_DEV_FEATURE_WORDS; ++i) {
09da71b1
MM		 195 valid |= (netdev_features_t)features[i].valid << (32 * i);
196 wanted |= (netdev_features_t)features[i].requested << (32 * i);
475414f6
MM		 197 }
198
199 if (valid & ~NETIF_F_ETHTOOL_BITS)
5455c699
MM		 200 return -EINVAL;
201
475414f6
MM		 202 if (valid & ~dev->hw_features) {
203 valid &= dev->hw_features;
5455c699
MM		 204 ret |= ETHTOOL_F_UNSUPPORTED;
205 }
206
475414f6
MM		 207 dev->wanted_features &= ~valid;
208 dev->wanted_features |= wanted & valid;
6cb6a27c 209 __netdev_update_features(dev);
5455c699 210
475414f6 211 if ((dev->wanted_features ^ dev->features) & valid)
5455c699
MM		 212 ret |= ETHTOOL_F_WISH;
213
214 return ret;
215}
216
340ae165
MM		 217static int __ethtool_get_sset_count(struct net_device *dev, int sset)
218{
219 const struct ethtool_ops *ops = dev->ethtool_ops;
220
5455c699
MM		 221 if (sset == ETH_SS_FEATURES)
222 return ARRAY_SIZE(netdev_features_strings);
223
892311f6
EP		 224 if (sset == ETH_SS_RSS_HASH_FUNCS)
225 return ARRAY_SIZE(rss_hash_func_strings);
226
a4244b0c
HHZ		 227 if (sset == ETH_SS_TUNABLES)
228 return ARRAY_SIZE(tunable_strings);
229
968ad9da
RL		 230 if (sset == ETH_SS_PHY_TUNABLES)
231 return ARRAY_SIZE(phy_tunable_strings);
232
99943382
FF		 233 if (sset == ETH_SS_PHY_STATS && dev->phydev &&
234 !ops->get_ethtool_phy_stats)
235 return phy_ethtool_get_sset_count(dev->phydev);
f3a40945 236
c03a14e8 237 if (ops->get_sset_count && ops->get_strings)
340ae165
MM		 238 return ops->get_sset_count(dev, sset);
239 else
240 return -EOPNOTSUPP;
241}
242
243static void __ethtool_get_strings(struct net_device *dev,
244 u32 stringset, u8 *data)
245{
246 const struct ethtool_ops *ops = dev->ethtool_ops;
247
5455c699
MM		 248 if (stringset == ETH_SS_FEATURES)
249 memcpy(data, netdev_features_strings,
250 sizeof(netdev_features_strings));
892311f6
EP		 251 else if (stringset == ETH_SS_RSS_HASH_FUNCS)
252 memcpy(data, rss_hash_func_strings,
253 sizeof(rss_hash_func_strings));
a4244b0c
HHZ		 254 else if (stringset == ETH_SS_TUNABLES)
255 memcpy(data, tunable_strings, sizeof(tunable_strings));
968ad9da
RL		 256 else if (stringset == ETH_SS_PHY_TUNABLES)
257 memcpy(data, phy_tunable_strings, sizeof(phy_tunable_strings));
99943382
FF		 258 else if (stringset == ETH_SS_PHY_STATS && dev->phydev &&
259 !ops->get_ethtool_phy_stats)
260 phy_ethtool_get_strings(dev->phydev, data);
261 else
5455c699
MM		 262 /* ops->get_strings is valid because checked earlier */
263 ops->get_strings(dev, stringset, data);
340ae165
MM		 264}
265
c8f44aff 266static netdev_features_t ethtool_get_feature_mask(u32 eth_cmd)
0a417704
MM		 267{
268 /* feature masks of legacy discrete ethtool ops */
269
270 switch (eth_cmd) {
271 case ETHTOOL_GTXCSUM:
272 case ETHTOOL_STXCSUM:
a188222b 273 return NETIF_F_CSUM_MASK | NETIF_F_SCTP_CRC;
e83d360d
MM		 274 case ETHTOOL_GRXCSUM:
275 case ETHTOOL_SRXCSUM:
276 return NETIF_F_RXCSUM;
0a417704
MM		 277 case ETHTOOL_GSG:
278 case ETHTOOL_SSG:
279 return NETIF_F_SG;
280 case ETHTOOL_GTSO:
281 case ETHTOOL_STSO:
282 return NETIF_F_ALL_TSO;
0a417704
MM		 283 case ETHTOOL_GGSO:
284 case ETHTOOL_SGSO:
285 return NETIF_F_GSO;
286 case ETHTOOL_GGRO:
287 case ETHTOOL_SGRO:
288 return NETIF_F_GRO;
289 default:
290 BUG();
291 }
292}
293
0a417704
MM		 294static int ethtool_get_one_feature(struct net_device *dev,
295 char __user *useraddr, u32 ethcmd)
296{
c8f44aff 297 netdev_features_t mask = ethtool_get_feature_mask(ethcmd);
0a417704
MM		 298 struct ethtool_value edata = {
299 .cmd = ethcmd,
86794881 300 .data = !!(dev->features & mask),
0a417704 301 };
0a417704 302
0a417704
MM		 303 if (copy_to_user(useraddr, &edata, sizeof(edata)))
304 return -EFAULT;
305 return 0;
306}
307
0a417704
MM		 308static int ethtool_set_one_feature(struct net_device *dev,
309 void __user *useraddr, u32 ethcmd)
310{
311 struct ethtool_value edata;
c8f44aff 312 netdev_features_t mask;
0a417704
MM		 313
314 if (copy_from_user(&edata, useraddr, sizeof(edata)))
315 return -EFAULT;
316
86794881
MM		 317 mask = ethtool_get_feature_mask(ethcmd);
318 mask &= dev->hw_features;
bc5787c6
MM		 319 if (!mask)
320 return -EOPNOTSUPP;
86794881 321
bc5787c6
MM		 322 if (edata.data)
323 dev->wanted_features |= mask;
324 else
325 dev->wanted_features &= ~mask;
86794881 326
bc5787c6 327 __netdev_update_features(dev);
86794881 328
bc5787c6
MM		 329 return 0;
330}
331
02b3a552
MM		 332#define ETH_ALL_FLAGS (ETH_FLAG_LRO | ETH_FLAG_RXVLAN | ETH_FLAG_TXVLAN | \
333 ETH_FLAG_NTUPLE | ETH_FLAG_RXHASH)
f646968f
PM		 334#define ETH_ALL_FEATURES (NETIF_F_LRO | NETIF_F_HW_VLAN_CTAG_RX | \
335 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_NTUPLE | \
336 NETIF_F_RXHASH)
bc5787c6
MM		 337
338static u32 __ethtool_get_flags(struct net_device *dev)
339{
02b3a552
MM		 340 u32 flags = 0;
341
8a73125c
DF		 342 if (dev->features & NETIF_F_LRO)
343 flags |= ETH_FLAG_LRO;
344 if (dev->features & NETIF_F_HW_VLAN_CTAG_RX)
345 flags |= ETH_FLAG_RXVLAN;
346 if (dev->features & NETIF_F_HW_VLAN_CTAG_TX)
347 flags |= ETH_FLAG_TXVLAN;
348 if (dev->features & NETIF_F_NTUPLE)
349 flags |= ETH_FLAG_NTUPLE;
350 if (dev->features & NETIF_F_RXHASH)
351 flags |= ETH_FLAG_RXHASH;
02b3a552
MM		 352
353 return flags;
0a417704
MM		 354}
355
bc5787c6 356static int __ethtool_set_flags(struct net_device *dev, u32 data)
da8ac86c 357{
c8f44aff 358 netdev_features_t features = 0, changed;
da8ac86c 359
02b3a552 360 if (data & ~ETH_ALL_FLAGS)
da8ac86c
MM		 361 return -EINVAL;
362
8a73125c
DF		 363 if (data & ETH_FLAG_LRO)
364 features |= NETIF_F_LRO;
365 if (data & ETH_FLAG_RXVLAN)
366 features |= NETIF_F_HW_VLAN_CTAG_RX;
367 if (data & ETH_FLAG_TXVLAN)
368 features |= NETIF_F_HW_VLAN_CTAG_TX;
369 if (data & ETH_FLAG_NTUPLE)
370 features |= NETIF_F_NTUPLE;
371 if (data & ETH_FLAG_RXHASH)
372 features |= NETIF_F_RXHASH;
02b3a552 373
da8ac86c 374 /* allow changing only bits set in hw_features */
02b3a552 375 changed = (features ^ dev->features) & ETH_ALL_FEATURES;
da8ac86c
MM		 376 if (changed & ~dev->hw_features)
377 return (changed & dev->hw_features) ? -EINVAL : -EOPNOTSUPP;
378
379 dev->wanted_features =
02b3a552 380 (dev->wanted_features & ~changed) | (features & changed);
da8ac86c 381
6cb6a27c 382 __netdev_update_features(dev);
da8ac86c
MM		 383
384 return 0;
385}
386
5a6cd6de
AB		 387/* Given two link masks, AND them together and save the result in dst. */
388void ethtool_intersect_link_masks(struct ethtool_link_ksettings *dst,
389 struct ethtool_link_ksettings *src)
390{
391 unsigned int size = BITS_TO_LONGS(__ETHTOOL_LINK_MODE_MASK_NBITS);
392 unsigned int idx = 0;
393
394 for (; idx < size; idx++) {
395 dst->link_modes.supported[idx] &=
396 src->link_modes.supported[idx];
397 dst->link_modes.advertising[idx] &=
398 src->link_modes.advertising[idx];
399 }
400}
401EXPORT_SYMBOL(ethtool_intersect_link_masks);
402
6d62b4d5
PR		 403void ethtool_convert_legacy_u32_to_link_mode(unsigned long *dst,
404 u32 legacy_u32)
3f1ac7a7
DD		 405{
406 bitmap_zero(dst, __ETHTOOL_LINK_MODE_MASK_NBITS);
407 dst[0] = legacy_u32;
408}
6d62b4d5 409EXPORT_SYMBOL(ethtool_convert_legacy_u32_to_link_mode);
3f1ac7a7
DD		 410
411/* return false if src had higher bits set. lower bits always updated. */
6d62b4d5
PR		 412bool ethtool_convert_link_mode_to_legacy_u32(u32 *legacy_u32,
413 const unsigned long *src)
3f1ac7a7
DD		 414{
415 bool retval = true;
416
417 /* TODO: following test will soon always be true */
418 if (__ETHTOOL_LINK_MODE_MASK_NBITS > 32) {
419 __ETHTOOL_DECLARE_LINK_MODE_MASK(ext);
420
421 bitmap_zero(ext, __ETHTOOL_LINK_MODE_MASK_NBITS);
422 bitmap_fill(ext, 32);
423 bitmap_complement(ext, ext, __ETHTOOL_LINK_MODE_MASK_NBITS);
424 if (bitmap_intersects(ext, src,
425 __ETHTOOL_LINK_MODE_MASK_NBITS)) {
426 /* src mask goes beyond bit 31 */
427 retval = false;
428 }
429 }
430 *legacy_u32 = src[0];
431 return retval;
432}
6d62b4d5 433EXPORT_SYMBOL(ethtool_convert_link_mode_to_legacy_u32);
3f1ac7a7
DD		 434
435/* return false if legacy contained non-0 deprecated fields
95491e3c 436 * maxtxpkt/maxrxpkt. rest of ksettings always updated
3f1ac7a7
DD		 437 */
438static bool
439convert_legacy_settings_to_link_ksettings(
440 struct ethtool_link_ksettings *link_ksettings,
441 const struct ethtool_cmd *legacy_settings)
442{
443 bool retval = true;
444
445 memset(link_ksettings, 0, sizeof(*link_ksettings));
446
447 /* This is used to tell users that driver is still using these
448 * deprecated legacy fields, and they should not use
449 * %ETHTOOL_GLINKSETTINGS/%ETHTOOL_SLINKSETTINGS
450 */
95491e3c 451 if (legacy_settings->maxtxpkt ||
3f1ac7a7
DD		 452 legacy_settings->maxrxpkt)
453 retval = false;
454
6d62b4d5 455 ethtool_convert_legacy_u32_to_link_mode(
3f1ac7a7
DD		 456 link_ksettings->link_modes.supported,
457 legacy_settings->supported);
6d62b4d5 458 ethtool_convert_legacy_u32_to_link_mode(
3f1ac7a7
DD		 459 link_ksettings->link_modes.advertising,
460 legacy_settings->advertising);
6d62b4d5 461 ethtool_convert_legacy_u32_to_link_mode(
3f1ac7a7
DD		 462 link_ksettings->link_modes.lp_advertising,
463 legacy_settings->lp_advertising);
464 link_ksettings->base.speed
465 = ethtool_cmd_speed(legacy_settings);
466 link_ksettings->base.duplex
467 = legacy_settings->duplex;
468 link_ksettings->base.port
469 = legacy_settings->port;
470 link_ksettings->base.phy_address
471 = legacy_settings->phy_address;
472 link_ksettings->base.autoneg
473 = legacy_settings->autoneg;
474 link_ksettings->base.mdio_support
475 = legacy_settings->mdio_support;
476 link_ksettings->base.eth_tp_mdix
477 = legacy_settings->eth_tp_mdix;
478 link_ksettings->base.eth_tp_mdix_ctrl
479 = legacy_settings->eth_tp_mdix_ctrl;
480 return retval;
481}
482
483/* return false if ksettings link modes had higher bits
484 * set. legacy_settings always updated (best effort)
485 */
486static bool
487convert_link_ksettings_to_legacy_settings(
488 struct ethtool_cmd *legacy_settings,
489 const struct ethtool_link_ksettings *link_ksettings)
490{
491 bool retval = true;
492
493 memset(legacy_settings, 0, sizeof(*legacy_settings));
494 /* this also clears the deprecated fields in legacy structure:
495 * __u8 transceiver;
496 * __u32 maxtxpkt;
497 * __u32 maxrxpkt;
498 */
499
6d62b4d5 500 retval &= ethtool_convert_link_mode_to_legacy_u32(
3f1ac7a7
DD		 501 &legacy_settings->supported,
502 link_ksettings->link_modes.supported);
6d62b4d5 503 retval &= ethtool_convert_link_mode_to_legacy_u32(
3f1ac7a7
DD		 504 &legacy_settings->advertising,
505 link_ksettings->link_modes.advertising);
6d62b4d5 506 retval &= ethtool_convert_link_mode_to_legacy_u32(
3f1ac7a7
DD		 507 &legacy_settings->lp_advertising,
508 link_ksettings->link_modes.lp_advertising);
509 ethtool_cmd_speed_set(legacy_settings, link_ksettings->base.speed);
510 legacy_settings->duplex
511 = link_ksettings->base.duplex;
512 legacy_settings->port
513 = link_ksettings->base.port;
514 legacy_settings->phy_address
515 = link_ksettings->base.phy_address;
516 legacy_settings->autoneg
517 = link_ksettings->base.autoneg;
518 legacy_settings->mdio_support
519 = link_ksettings->base.mdio_support;
520 legacy_settings->eth_tp_mdix
521 = link_ksettings->base.eth_tp_mdix;
522 legacy_settings->eth_tp_mdix_ctrl
523 = link_ksettings->base.eth_tp_mdix_ctrl;
19cab887
FF		 524 legacy_settings->transceiver
525 = link_ksettings->base.transceiver;
3f1ac7a7
DD		 526 return retval;
527}
528
529/* number of 32-bit words to store the user's link mode bitmaps */
530#define __ETHTOOL_LINK_MODE_MASK_NU32 \
531 DIV_ROUND_UP(__ETHTOOL_LINK_MODE_MASK_NBITS, 32)
532
533/* layout of the struct passed from/to userland */
534struct ethtool_link_usettings {
535 struct ethtool_link_settings base;
536 struct {
537 __u32 supported[__ETHTOOL_LINK_MODE_MASK_NU32];
538 __u32 advertising[__ETHTOOL_LINK_MODE_MASK_NU32];
539 __u32 lp_advertising[__ETHTOOL_LINK_MODE_MASK_NU32];
540 } link_modes;
541};
542
9b300495 543/* Internal kernel helper to query a device ethtool_link_settings. */
3f1ac7a7
DD		 544int __ethtool_get_link_ksettings(struct net_device *dev,
545 struct ethtool_link_ksettings *link_ksettings)
546{
3f1ac7a7
DD		 547 ASSERT_RTNL();
548
9b300495 549 if (!dev->ethtool_ops->get_link_ksettings)
3237fc63
DD		 550 return -EOPNOTSUPP;
551
9b300495
MK		 552 memset(link_ksettings, 0, sizeof(*link_ksettings));
553 return dev->ethtool_ops->get_link_ksettings(dev, link_ksettings);
3f1ac7a7
DD		 554}
555EXPORT_SYMBOL(__ethtool_get_link_ksettings);
556
557/* convert ethtool_link_usettings in user space to a kernel internal
558 * ethtool_link_ksettings. return 0 on success, errno on error.
559 */
560static int load_link_ksettings_from_user(struct ethtool_link_ksettings *to,
561 const void __user *from)
562{
563 struct ethtool_link_usettings link_usettings;
564
565 if (copy_from_user(&link_usettings, from, sizeof(link_usettings)))
566 return -EFAULT;
567
568 memcpy(&to->base, &link_usettings.base, sizeof(to->base));
3aa56885
YN		 569 bitmap_from_arr32(to->link_modes.supported,
570 link_usettings.link_modes.supported,
571 __ETHTOOL_LINK_MODE_MASK_NBITS);
572 bitmap_from_arr32(to->link_modes.advertising,
573 link_usettings.link_modes.advertising,
574 __ETHTOOL_LINK_MODE_MASK_NBITS);
575 bitmap_from_arr32(to->link_modes.lp_advertising,
576 link_usettings.link_modes.lp_advertising,
577 __ETHTOOL_LINK_MODE_MASK_NBITS);
3f1ac7a7
DD		 578
579 return 0;
580}
581
582/* convert a kernel internal ethtool_link_ksettings to
583 * ethtool_link_usettings in user space. return 0 on success, errno on
584 * error.
585 */
586static int
587store_link_ksettings_for_user(void __user *to,
588 const struct ethtool_link_ksettings *from)
589{
590 struct ethtool_link_usettings link_usettings;
591
592 memcpy(&link_usettings.base, &from->base, sizeof(link_usettings));
3aa56885
YN		 593 bitmap_to_arr32(link_usettings.link_modes.supported,
594 from->link_modes.supported,
595 __ETHTOOL_LINK_MODE_MASK_NBITS);
596 bitmap_to_arr32(link_usettings.link_modes.advertising,
597 from->link_modes.advertising,
598 __ETHTOOL_LINK_MODE_MASK_NBITS);
599 bitmap_to_arr32(link_usettings.link_modes.lp_advertising,
600 from->link_modes.lp_advertising,
601 __ETHTOOL_LINK_MODE_MASK_NBITS);
3f1ac7a7
DD		 602
603 if (copy_to_user(to, &link_usettings, sizeof(link_usettings)))
604 return -EFAULT;
605
606 return 0;
607}
608
9b300495 609/* Query device for its ethtool_link_settings. */
3f1ac7a7
DD		 610static int ethtool_get_link_ksettings(struct net_device *dev,
611 void __user *useraddr)
612{
613 int err = 0;
614 struct ethtool_link_ksettings link_ksettings;
615
616 ASSERT_RTNL();
3f1ac7a7
DD		 617 if (!dev->ethtool_ops->get_link_ksettings)
618 return -EOPNOTSUPP;
619
620 /* handle bitmap nbits handshake */
621 if (copy_from_user(&link_ksettings.base, useraddr,
622 sizeof(link_ksettings.base)))
623 return -EFAULT;
624
625 if (__ETHTOOL_LINK_MODE_MASK_NU32
626 != link_ksettings.base.link_mode_masks_nwords) {
627 /* wrong link mode nbits requested */
628 memset(&link_ksettings, 0, sizeof(link_ksettings));
793cf87d 629 link_ksettings.base.cmd = ETHTOOL_GLINKSETTINGS;
3f1ac7a7
DD		 630 /* send back number of words required as negative val */
631 compiletime_assert(__ETHTOOL_LINK_MODE_MASK_NU32 <= S8_MAX,
632 "need too many bits for link modes!");
633 link_ksettings.base.link_mode_masks_nwords
634 = -((s8)__ETHTOOL_LINK_MODE_MASK_NU32);
635
636 /* copy the base fields back to user, not the link
637 * mode bitmaps
638 */
639 if (copy_to_user(useraddr, &link_ksettings.base,
640 sizeof(link_ksettings.base)))
641 return -EFAULT;
642
643 return 0;
644 }
645
646 /* handshake successful: user/kernel agree on
647 * link_mode_masks_nwords
648 */
649
650 memset(&link_ksettings, 0, sizeof(link_ksettings));
651 err = dev->ethtool_ops->get_link_ksettings(dev, &link_ksettings);
652 if (err < 0)
653 return err;
654
655 /* make sure we tell the right values to user */
656 link_ksettings.base.cmd = ETHTOOL_GLINKSETTINGS;
657 link_ksettings.base.link_mode_masks_nwords
658 = __ETHTOOL_LINK_MODE_MASK_NU32;
659
660 return store_link_ksettings_for_user(useraddr, &link_ksettings);
661}
662
9b300495 663/* Update device ethtool_link_settings. */
3f1ac7a7
DD		 664static int ethtool_set_link_ksettings(struct net_device *dev,
665 void __user *useraddr)
666{
667 int err;
668 struct ethtool_link_ksettings link_ksettings;
669
670 ASSERT_RTNL();
671
672 if (!dev->ethtool_ops->set_link_ksettings)
673 return -EOPNOTSUPP;
674
675 /* make sure nbits field has expected value */
676 if (copy_from_user(&link_ksettings.base, useraddr,
677 sizeof(link_ksettings.base)))
678 return -EFAULT;
679
680 if (__ETHTOOL_LINK_MODE_MASK_NU32
681 != link_ksettings.base.link_mode_masks_nwords)
682 return -EINVAL;
683
684 /* copy the whole structure, now that we know it has expected
685 * format
686 */
687 err = load_link_ksettings_from_user(&link_ksettings, useraddr);
688 if (err)
689 return err;
690
691 /* re-check nwords field, just in case */
692 if (__ETHTOOL_LINK_MODE_MASK_NU32
693 != link_ksettings.base.link_mode_masks_nwords)
694 return -EINVAL;
695
696 return dev->ethtool_ops->set_link_ksettings(dev, &link_ksettings);
697}
698
3f1ac7a7
DD		 699/* Query device for its ethtool_cmd settings.
700 *
9b300495
MK		 701 * Backward compatibility note: for compatibility with legacy ethtool, this is
702 * now implemented via get_link_ksettings. When driver reports higher link mode
703 * bits, a kernel warning is logged once (with name of 1st driver/device) to
704 * recommend user to upgrade ethtool, but the command is successful (only the
705 * lower link mode bits reported back to user). Deprecated fields from
706 * ethtool_cmd (transceiver/maxrxpkt/maxtxpkt) are always set to zero.
3f1ac7a7 707 */
4bc71cb9
JP		 708static int ethtool_get_settings(struct net_device *dev, void __user *useraddr)
709{
9b300495 710 struct ethtool_link_ksettings link_ksettings;
4bc71cb9 711 struct ethtool_cmd cmd;
9b300495 712 int err;
4bc71cb9 713
3f1ac7a7 714 ASSERT_RTNL();
9b300495
MK		 715 if (!dev->ethtool_ops->get_link_ksettings)
716 return -EOPNOTSUPP;
3f1ac7a7 717
9b300495
MK		 718 memset(&link_ksettings, 0, sizeof(link_ksettings));
719 err = dev->ethtool_ops->get_link_ksettings(dev, &link_ksettings);
720 if (err < 0)
721 return err;
722 convert_link_ksettings_to_legacy_settings(&cmd, &link_ksettings);
3237fc63 723
9b300495
MK		 724 /* send a sensible cmd tag back to user */
725 cmd.cmd = ETHTOOL_GSET;
1da177e4
LT		 726
727 if (copy_to_user(useraddr, &cmd, sizeof(cmd)))
728 return -EFAULT;
3f1ac7a7 729
1da177e4
LT		 730 return 0;
731}
732
3f1ac7a7
DD		 733/* Update device link settings with given ethtool_cmd.
734 *
9b300495
MK		 735 * Backward compatibility note: for compatibility with legacy ethtool, this is
736 * now always implemented via set_link_settings. When user's request updates
737 * deprecated ethtool_cmd fields (transceiver/maxrxpkt/maxtxpkt), a kernel
738 * warning is logged once (with name of 1st driver/device) to recommend user to
739 * upgrade ethtool, and the request is rejected.
3f1ac7a7 740 */
1da177e4
LT		 741static int ethtool_set_settings(struct net_device *dev, void __user *useraddr)
742{
9b300495 743 struct ethtool_link_ksettings link_ksettings;
1da177e4
LT		 744 struct ethtool_cmd cmd;
745
3f1ac7a7 746 ASSERT_RTNL();
1da177e4
LT		 747
748 if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
749 return -EFAULT;
9b300495 750 if (!dev->ethtool_ops->set_link_ksettings)
3f1ac7a7
DD		 751 return -EOPNOTSUPP;
752
9b300495
MK		 753 if (!convert_legacy_settings_to_link_ksettings(&link_ksettings, &cmd))
754 return -EINVAL;
755 link_ksettings.base.link_mode_masks_nwords =
756 __ETHTOOL_LINK_MODE_MASK_NU32;
757 return dev->ethtool_ops->set_link_ksettings(dev, &link_ksettings);
1da177e4
LT		 758}
759
97f8aefb 760static noinline_for_stack int ethtool_get_drvinfo(struct net_device *dev,
761 void __user *useraddr)
1da177e4
LT		 762{
763 struct ethtool_drvinfo info;
76fd8593 764 const struct ethtool_ops *ops = dev->ethtool_ops;
1da177e4 765
1da177e4
LT		 766 memset(&info, 0, sizeof(info));
767 info.cmd = ETHTOOL_GDRVINFO;
c03a14e8 768 if (ops->get_drvinfo) {
01414802
BH		 769 ops->get_drvinfo(dev, &info);
770 } else if (dev->dev.parent && dev->dev.parent->driver) {
771 strlcpy(info.bus_info, dev_name(dev->dev.parent),
772 sizeof(info.bus_info));
773 strlcpy(info.driver, dev->dev.parent->driver->name,
774 sizeof(info.driver));
775 } else {
776 return -EOPNOTSUPP;
777 }
1da177e4 778
723b2f57
JG		 779 /*
780 * this method of obtaining string set info is deprecated;
d17792eb 781 * Use ETHTOOL_GSSET_INFO instead.
723b2f57 782 */
c03a14e8 783 if (ops->get_sset_count) {
ff03d49f
JG		 784 int rc;
785
786 rc = ops->get_sset_count(dev, ETH_SS_TEST);
787 if (rc >= 0)
788 info.testinfo_len = rc;
789 rc = ops->get_sset_count(dev, ETH_SS_STATS);
790 if (rc >= 0)
791 info.n_stats = rc;
339bf024
JG		 792 rc = ops->get_sset_count(dev, ETH_SS_PRIV_FLAGS);
793 if (rc >= 0)
794 info.n_priv_flags = rc;
ff03d49f 795 }
c03a14e8 796 if (ops->get_regs_len)
1da177e4 797 info.regdump_len = ops->get_regs_len(dev);
c03a14e8 798 if (ops->get_eeprom_len)
1da177e4
LT		 799 info.eedump_len = ops->get_eeprom_len(dev);
800
801 if (copy_to_user(useraddr, &info, sizeof(info)))
802 return -EFAULT;
803 return 0;
804}
805
f5c445ed 806static noinline_for_stack int ethtool_get_sset_info(struct net_device *dev,
97f8aefb 807 void __user *useraddr)
723b2f57
JG		 808{
809 struct ethtool_sset_info info;
723b2f57
JG		 810 u64 sset_mask;
811 int i, idx = 0, n_bits = 0, ret, rc;
812 u32 *info_buf = NULL;
813
723b2f57
JG		 814 if (copy_from_user(&info, useraddr, sizeof(info)))
815 return -EFAULT;
816
817 /* store copy of mask, because we zero struct later on */
818 sset_mask = info.sset_mask;
819 if (!sset_mask)
820 return 0;
821
822 /* calculate size of return buffer */
d17792eb 823 n_bits = hweight64(sset_mask);
723b2f57
JG		 824
825 memset(&info, 0, sizeof(info));
826 info.cmd = ETHTOOL_GSSET_INFO;
827
6396bb22 828 info_buf = kcalloc(n_bits, sizeof(u32), GFP_USER);
723b2f57
JG		 829 if (!info_buf)
830 return -ENOMEM;
831
832 /*
833 * fill return buffer based on input bitmask and successful
834 * get_sset_count return
835 */
836 for (i = 0; i < 64; i++) {
837 if (!(sset_mask & (1ULL << i)))
838 continue;
839
340ae165 840 rc = __ethtool_get_sset_count(dev, i);
723b2f57
JG		 841 if (rc >= 0) {
842 info.sset_mask |= (1ULL << i);
843 info_buf[idx++] = rc;
844 }
845 }
846
847 ret = -EFAULT;
848 if (copy_to_user(useraddr, &info, sizeof(info)))
849 goto out;
850
851 useraddr += offsetof(struct ethtool_sset_info, data);
852 if (copy_to_user(useraddr, info_buf, idx * sizeof(u32)))
853 goto out;
854
855 ret = 0;
856
857out:
858 kfree(info_buf);
859 return ret;
860}
861
97f8aefb 862static noinline_for_stack int ethtool_set_rxnfc(struct net_device *dev,
bf988435 863 u32 cmd, void __user *useraddr)
0853ad66 864{
bf988435
BH		 865 struct ethtool_rxnfc info;
866 size_t info_size = sizeof(info);
55664f32 867 int rc;
0853ad66 868
59089d8d 869 if (!dev->ethtool_ops->set_rxnfc)
0853ad66
SB		 870 return -EOPNOTSUPP;
871
bf988435
BH		 872 /* struct ethtool_rxnfc was originally defined for
873 * ETHTOOL_{G,S}RXFH with only the cmd, flow_type and data
874 * members. User-space might still be using that
875 * definition. */
876 if (cmd == ETHTOOL_SRXFH)
877 info_size = (offsetof(struct ethtool_rxnfc, data) +
878 sizeof(info.data));
879
880 if (copy_from_user(&info, useraddr, info_size))
0853ad66
SB		 881 return -EFAULT;
882
55664f32
BH		 883 rc = dev->ethtool_ops->set_rxnfc(dev, &info);
884 if (rc)
885 return rc;
886
887 if (cmd == ETHTOOL_SRXCLSRLINS &&
888 copy_to_user(useraddr, &info, info_size))
889 return -EFAULT;
890
891 return 0;
0853ad66
SB		 892}
893
97f8aefb 894static noinline_for_stack int ethtool_get_rxnfc(struct net_device *dev,
bf988435 895 u32 cmd, void __user *useraddr)
0853ad66
SB		 896{
897 struct ethtool_rxnfc info;
bf988435 898 size_t info_size = sizeof(info);
59089d8d
SB		 899 const struct ethtool_ops *ops = dev->ethtool_ops;
900 int ret;
901 void *rule_buf = NULL;
0853ad66 902
59089d8d 903 if (!ops->get_rxnfc)
0853ad66
SB		 904 return -EOPNOTSUPP;
905
bf988435
BH		 906 /* struct ethtool_rxnfc was originally defined for
907 * ETHTOOL_{G,S}RXFH with only the cmd, flow_type and data
908 * members. User-space might still be using that
909 * definition. */
910 if (cmd == ETHTOOL_GRXFH)
911 info_size = (offsetof(struct ethtool_rxnfc, data) +
912 sizeof(info.data));
913
914 if (copy_from_user(&info, useraddr, info_size))
0853ad66
SB		 915 return -EFAULT;
916
84a1d9c4
EC		 917 /* If FLOW_RSS was requested then user-space must be using the
918 * new definition, as FLOW_RSS is newer.
919 */
920 if (cmd == ETHTOOL_GRXFH && info.flow_type & FLOW_RSS) {
921 info_size = sizeof(info);
922 if (copy_from_user(&info, useraddr, info_size))
923 return -EFAULT;
d656fe49
WW		 924 /* Since malicious users may modify the original data,
925 * we need to check whether FLOW_RSS is still requested.
926 */
927 if (!(info.flow_type & FLOW_RSS))
928 return -EINVAL;
84a1d9c4
EC		 929 }
930
2bb3207d
WW		 931 if (info.cmd != cmd)
932 return -EINVAL;
933
59089d8d
SB		 934 if (info.cmd == ETHTOOL_GRXCLSRLALL) {
935 if (info.rule_cnt > 0) {
db048b69 936 if (info.rule_cnt <= KMALLOC_MAX_SIZE / sizeof(u32))
6396bb22 937 rule_buf = kcalloc(info.rule_cnt, sizeof(u32),
db048b69 938 GFP_USER);
59089d8d
SB		 939 if (!rule_buf)
940 return -ENOMEM;
941 }
942 }
0853ad66 943
59089d8d
SB		 944 ret = ops->get_rxnfc(dev, &info, rule_buf);
945 if (ret < 0)
946 goto err_out;
947
948 ret = -EFAULT;
bf988435 949 if (copy_to_user(useraddr, &info, info_size))
59089d8d
SB		 950 goto err_out;
951
952 if (rule_buf) {
953 useraddr += offsetof(struct ethtool_rxnfc, rule_locs);
954 if (copy_to_user(useraddr, rule_buf,
955 info.rule_cnt * sizeof(u32)))
956 goto err_out;
957 }
958 ret = 0;
959
960err_out:
c9caceca 961 kfree(rule_buf);
59089d8d
SB		 962
963 return ret;
0853ad66
SB		 964}
965
3de0b592
VD		 966static int ethtool_copy_validate_indir(u32 *indir, void __user *useraddr,
967 struct ethtool_rxnfc *rx_rings,
968 u32 size)
969{
fb95cd8d 970 int i;
3de0b592
VD		 971
972 if (copy_from_user(indir, useraddr, size * sizeof(indir[0])))
fb95cd8d 973 return -EFAULT;
3de0b592
VD		 974
975 /* Validate ring indices */
fb95cd8d
BH		 976 for (i = 0; i < size; i++)
977 if (indir[i] >= rx_rings->data)
978 return -EINVAL;
979
980 return 0;
3de0b592
VD		 981}
982
ba905f5e 983u8 netdev_rss_key[NETDEV_RSS_KEY_LEN] __read_mostly;
960fb622
ED		 984
985void netdev_rss_key_fill(void *buffer, size_t len)
986{
987 BUG_ON(len > sizeof(netdev_rss_key));
988 net_get_random_once(netdev_rss_key, sizeof(netdev_rss_key));
989 memcpy(buffer, netdev_rss_key, len);
990}
991EXPORT_SYMBOL(netdev_rss_key_fill);
992
d4ab4286
KJ		 993static int ethtool_get_max_rxfh_channel(struct net_device *dev, u32 *max)
994{
995 u32 dev_size, current_max = 0;
996 u32 *indir;
997 int ret;
998
999 if (!dev->ethtool_ops->get_rxfh_indir_size ||
1000 !dev->ethtool_ops->get_rxfh)
1001 return -EOPNOTSUPP;
1002 dev_size = dev->ethtool_ops->get_rxfh_indir_size(dev);
1003 if (dev_size == 0)
1004 return -EOPNOTSUPP;
1005
1006 indir = kcalloc(dev_size, sizeof(indir[0]), GFP_USER);
1007 if (!indir)
1008 return -ENOMEM;
1009
1010 ret = dev->ethtool_ops->get_rxfh(dev, indir, NULL, NULL);
1011 if (ret)
1012 goto out;
1013
1014 while (dev_size--)
1015 current_max = max(current_max, indir[dev_size]);
1016
1017 *max = current_max;
1018
1019out:
1020 kfree(indir);
1021 return ret;
1022}
1023
a5b6ee29
BH		 1024static noinline_for_stack int ethtool_get_rxfh_indir(struct net_device *dev,
1025 void __user *useraddr)
1026{
7850f63f
BH		 1027 u32 user_size, dev_size;
1028 u32 *indir;
a5b6ee29
BH		 1029 int ret;
1030
7850f63f 1031 if (!dev->ethtool_ops->get_rxfh_indir_size ||
fe62d001 1032 !dev->ethtool_ops->get_rxfh)
7850f63f
BH		 1033 return -EOPNOTSUPP;
1034 dev_size = dev->ethtool_ops->get_rxfh_indir_size(dev);
1035 if (dev_size == 0)
a5b6ee29
BH		 1036 return -EOPNOTSUPP;
1037
7850f63f 1038 if (copy_from_user(&user_size,
a5b6ee29 1039 useraddr + offsetof(struct ethtool_rxfh_indir, size),
7850f63f 1040 sizeof(user_size)))
a5b6ee29
BH		 1041 return -EFAULT;
1042
7850f63f
BH		 1043 if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh_indir, size),
1044 &dev_size, sizeof(dev_size)))
1045 return -EFAULT;
1046
1047 /* If the user buffer size is 0, this is just a query for the
1048 * device table size. Otherwise, if it's smaller than the
1049 * device table size it's an error.
1050 */
1051 if (user_size < dev_size)
1052 return user_size == 0 ? 0 : -EINVAL;
1053
1054 indir = kcalloc(dev_size, sizeof(indir[0]), GFP_USER);
a5b6ee29
BH		 1055 if (!indir)
1056 return -ENOMEM;
1057
892311f6 1058 ret = dev->ethtool_ops->get_rxfh(dev, indir, NULL, NULL);
a5b6ee29
BH		 1059 if (ret)
1060 goto out;
1061
7850f63f
BH		 1062 if (copy_to_user(useraddr +
1063 offsetof(struct ethtool_rxfh_indir, ring_index[0]),
1064 indir, dev_size * sizeof(indir[0])))
a5b6ee29
BH		 1065 ret = -EFAULT;
1066
1067out:
1068 kfree(indir);
1069 return ret;
1070}
1071
1072static noinline_for_stack int ethtool_set_rxfh_indir(struct net_device *dev,
1073 void __user *useraddr)
1074{
7850f63f
BH		 1075 struct ethtool_rxnfc rx_rings;
1076 u32 user_size, dev_size, i;
1077 u32 *indir;
c03a14e8 1078 const struct ethtool_ops *ops = dev->ethtool_ops;
a5b6ee29 1079 int ret;
3de0b592 1080 u32 ringidx_offset = offsetof(struct ethtool_rxfh_indir, ring_index[0]);
a5b6ee29 1081
fe62d001 1082 if (!ops->get_rxfh_indir_size || !ops->set_rxfh ||
c03a14e8 1083 !ops->get_rxnfc)
7850f63f 1084 return -EOPNOTSUPP;
c03a14e8
JP		 1085
1086 dev_size = ops->get_rxfh_indir_size(dev);
7850f63f 1087 if (dev_size == 0)
a5b6ee29
BH		 1088 return -EOPNOTSUPP;
1089
7850f63f 1090 if (copy_from_user(&user_size,
a5b6ee29 1091 useraddr + offsetof(struct ethtool_rxfh_indir, size),
7850f63f 1092 sizeof(user_size)))
a5b6ee29
BH		 1093 return -EFAULT;
1094
278bc429 1095 if (user_size != 0 && user_size != dev_size)
7850f63f
BH		 1096 return -EINVAL;
1097
1098 indir = kcalloc(dev_size, sizeof(indir[0]), GFP_USER);
a5b6ee29
BH		 1099 if (!indir)
1100 return -ENOMEM;
1101
7850f63f 1102 rx_rings.cmd = ETHTOOL_GRXRINGS;
c03a14e8 1103 ret = ops->get_rxnfc(dev, &rx_rings, NULL);
7850f63f
BH		 1104 if (ret)
1105 goto out;
278bc429
BH		 1106
1107 if (user_size == 0) {
1108 for (i = 0; i < dev_size; i++)
1109 indir[i] = ethtool_rxfh_indir_default(i, rx_rings.data);
1110 } else {
3de0b592
VD		 1111 ret = ethtool_copy_validate_indir(indir,
1112 useraddr + ringidx_offset,
1113 &rx_rings,
1114 dev_size);
1115 if (ret)
1116 goto out;
1117 }
1118
892311f6 1119 ret = ops->set_rxfh(dev, indir, NULL, ETH_RSS_HASH_NO_CHANGE);
d4ab4286
KJ		 1120 if (ret)
1121 goto out;
1122
1123 /* indicate whether rxfh was set to default */
1124 if (user_size == 0)
1125 dev->priv_flags &= ~IFF_RXFH_CONFIGURED;
1126 else
1127 dev->priv_flags |= IFF_RXFH_CONFIGURED;
3de0b592
VD		 1128
1129out:
1130 kfree(indir);
1131 return ret;
1132}
1133
1134static noinline_for_stack int ethtool_get_rxfh(struct net_device *dev,
1135 void __user *useraddr)
1136{
1137 int ret;
1138 const struct ethtool_ops *ops = dev->ethtool_ops;
f062a384 1139 u32 user_indir_size, user_key_size;
3de0b592 1140 u32 dev_indir_size = 0, dev_key_size = 0;
f062a384 1141 struct ethtool_rxfh rxfh;
3de0b592 1142 u32 total_size;
f062a384 1143 u32 indir_bytes;
3de0b592 1144 u32 *indir = NULL;
892311f6 1145 u8 dev_hfunc = 0;
3de0b592
VD		 1146 u8 *hkey = NULL;
1147 u8 *rss_config;
1148
892311f6 1149 if (!ops->get_rxfh)
3de0b592
VD		 1150 return -EOPNOTSUPP;
1151
1152 if (ops->get_rxfh_indir_size)
1153 dev_indir_size = ops->get_rxfh_indir_size(dev);
3de0b592
VD		 1154 if (ops->get_rxfh_key_size)
1155 dev_key_size = ops->get_rxfh_key_size(dev);
1156
f062a384 1157 if (copy_from_user(&rxfh, useraddr, sizeof(rxfh)))
3de0b592 1158 return -EFAULT;
f062a384
BH		 1159 user_indir_size = rxfh.indir_size;
1160 user_key_size = rxfh.key_size;
3de0b592 1161
f062a384 1162 /* Check that reserved fields are 0 for now */
84a1d9c4 1163 if (rxfh.rsvd8[0] || rxfh.rsvd8[1] || rxfh.rsvd8[2] || rxfh.rsvd32)
f062a384 1164 return -EINVAL;
84a1d9c4
EC		 1165 /* Most drivers don't handle rss_context, check it's 0 as well */
1166 if (rxfh.rss_context && !ops->get_rxfh_context)
1167 return -EOPNOTSUPP;
f062a384
BH		 1168
1169 rxfh.indir_size = dev_indir_size;
1170 rxfh.key_size = dev_key_size;
1171 if (copy_to_user(useraddr, &rxfh, sizeof(rxfh)))
3de0b592
VD		 1172 return -EFAULT;
1173
3de0b592
VD		 1174 if ((user_indir_size && (user_indir_size != dev_indir_size)) ||
1175 (user_key_size && (user_key_size != dev_key_size)))
1176 return -EINVAL;
1177
1178 indir_bytes = user_indir_size * sizeof(indir[0]);
1179 total_size = indir_bytes + user_key_size;
1180 rss_config = kzalloc(total_size, GFP_USER);
1181 if (!rss_config)
1182 return -ENOMEM;
1183
1184 if (user_indir_size)
1185 indir = (u32 *)rss_config;
1186
1187 if (user_key_size)
1188 hkey = rss_config + indir_bytes;
1189
84a1d9c4
EC		 1190 if (rxfh.rss_context)
1191 ret = dev->ethtool_ops->get_rxfh_context(dev, indir, hkey,
1192 &dev_hfunc,
1193 rxfh.rss_context);
1194 else
1195 ret = dev->ethtool_ops->get_rxfh(dev, indir, hkey, &dev_hfunc);
892311f6
EP		 1196 if (ret)
1197 goto out;
3de0b592 1198
892311f6
EP		 1199 if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh, hfunc),
1200 &dev_hfunc, sizeof(rxfh.hfunc))) {
1201 ret = -EFAULT;
1202 } else if (copy_to_user(useraddr +
1203 offsetof(struct ethtool_rxfh, rss_config[0]),
1204 rss_config, total_size)) {
1205 ret = -EFAULT;
1206 }
1207out:
3de0b592
VD		 1208 kfree(rss_config);
1209
1210 return ret;
1211}
1212
1213static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev,
1214 void __user *useraddr)
1215{
1216 int ret;
1217 const struct ethtool_ops *ops = dev->ethtool_ops;
1218 struct ethtool_rxnfc rx_rings;
f062a384
BH		 1219 struct ethtool_rxfh rxfh;
1220 u32 dev_indir_size = 0, dev_key_size = 0, i;
3de0b592
VD		 1221 u32 *indir = NULL, indir_bytes = 0;
1222 u8 *hkey = NULL;
1223 u8 *rss_config;
3de0b592 1224 u32 rss_cfg_offset = offsetof(struct ethtool_rxfh, rss_config[0]);
84a1d9c4 1225 bool delete = false;
3de0b592 1226
892311f6 1227 if (!ops->get_rxnfc || !ops->set_rxfh)
3de0b592
VD		 1228 return -EOPNOTSUPP;
1229
1230 if (ops->get_rxfh_indir_size)
1231 dev_indir_size = ops->get_rxfh_indir_size(dev);
3de0b592 1232 if (ops->get_rxfh_key_size)
d340c862 1233 dev_key_size = ops->get_rxfh_key_size(dev);
3de0b592 1234
f062a384 1235 if (copy_from_user(&rxfh, useraddr, sizeof(rxfh)))
3de0b592
VD		 1236 return -EFAULT;
1237
f062a384 1238 /* Check that reserved fields are 0 for now */
84a1d9c4 1239 if (rxfh.rsvd8[0] || rxfh.rsvd8[1] || rxfh.rsvd8[2] || rxfh.rsvd32)
f062a384 1240 return -EINVAL;
84a1d9c4
EC		 1241 /* Most drivers don't handle rss_context, check it's 0 as well */
1242 if (rxfh.rss_context && !ops->set_rxfh_context)
1243 return -EOPNOTSUPP;
f062a384 1244
892311f6
EP		 1245 /* If either indir, hash key or function is valid, proceed further.
1246 * Must request at least one change: indir size, hash key or function.
3de0b592 1247 */
f062a384
BH		 1248 if ((rxfh.indir_size &&
1249 rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE &&
1250 rxfh.indir_size != dev_indir_size) ||
1251 (rxfh.key_size && (rxfh.key_size != dev_key_size)) ||
1252 (rxfh.indir_size == ETH_RXFH_INDIR_NO_CHANGE &&
892311f6 1253 rxfh.key_size == 0 && rxfh.hfunc == ETH_RSS_HASH_NO_CHANGE))
3de0b592
VD		 1254 return -EINVAL;
1255
f062a384 1256 if (rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE)
3de0b592
VD		 1257 indir_bytes = dev_indir_size * sizeof(indir[0]);
1258
f062a384 1259 rss_config = kzalloc(indir_bytes + rxfh.key_size, GFP_USER);
3de0b592
VD		 1260 if (!rss_config)
1261 return -ENOMEM;
1262
1263 rx_rings.cmd = ETHTOOL_GRXRINGS;
1264 ret = ops->get_rxnfc(dev, &rx_rings, NULL);
1265 if (ret)
1266 goto out;
1267
84a1d9c4
EC		 1268 /* rxfh.indir_size == 0 means reset the indir table to default (master
1269 * context) or delete the context (other RSS contexts).
f062a384 1270 * rxfh.indir_size == ETH_RXFH_INDIR_NO_CHANGE means leave it unchanged.
3de0b592 1271 */
f062a384
BH		 1272 if (rxfh.indir_size &&
1273 rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE) {
3de0b592
VD		 1274 indir = (u32 *)rss_config;
1275 ret = ethtool_copy_validate_indir(indir,
1276 useraddr + rss_cfg_offset,
1277 &rx_rings,
f062a384 1278 rxfh.indir_size);
3de0b592 1279 if (ret)
7850f63f 1280 goto out;
f062a384 1281 } else if (rxfh.indir_size == 0) {
84a1d9c4
EC		 1282 if (rxfh.rss_context == 0) {
1283 indir = (u32 *)rss_config;
1284 for (i = 0; i < dev_indir_size; i++)
1285 indir[i] = ethtool_rxfh_indir_default(i, rx_rings.data);
1286 } else {
1287 delete = true;
1288 }
3de0b592 1289 }
278bc429 1290
f062a384 1291 if (rxfh.key_size) {
3de0b592
VD		 1292 hkey = rss_config + indir_bytes;
1293 if (copy_from_user(hkey,
1294 useraddr + rss_cfg_offset + indir_bytes,
f062a384 1295 rxfh.key_size)) {
3de0b592
VD		 1296 ret = -EFAULT;
1297 goto out;
278bc429 1298 }
7850f63f
BH		 1299 }
1300
84a1d9c4
EC		 1301 if (rxfh.rss_context)
1302 ret = ops->set_rxfh_context(dev, indir, hkey, rxfh.hfunc,
1303 &rxfh.rss_context, delete);
1304 else
1305 ret = ops->set_rxfh(dev, indir, hkey, rxfh.hfunc);
d4ab4286
KJ		 1306 if (ret)
1307 goto out;
1308
84a1d9c4
EC		 1309 if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh, rss_context),
1310 &rxfh.rss_context, sizeof(rxfh.rss_context)))
1311 ret = -EFAULT;
1312
1313 if (!rxfh.rss_context) {
1314 /* indicate whether rxfh was set to default */
1315 if (rxfh.indir_size == 0)
1316 dev->priv_flags &= ~IFF_RXFH_CONFIGURED;
1317 else if (rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE)
1318 dev->priv_flags |= IFF_RXFH_CONFIGURED;
1319 }
a5b6ee29
BH		 1320
1321out:
3de0b592 1322 kfree(rss_config);
a5b6ee29
BH		 1323 return ret;
1324}
1325
1da177e4
LT		 1326static int ethtool_get_regs(struct net_device *dev, char __user *useraddr)
1327{
1328 struct ethtool_regs regs;
76fd8593 1329 const struct ethtool_ops *ops = dev->ethtool_ops;
1da177e4
LT		 1330 void *regbuf;
1331 int reglen, ret;
1332
1333 if (!ops->get_regs || !ops->get_regs_len)
1334 return -EOPNOTSUPP;
1335
1336 if (copy_from_user(&regs, useraddr, sizeof(regs)))
1337 return -EFAULT;
1338
1339 reglen = ops->get_regs_len(dev);
1340 if (regs.len > reglen)
1341 regs.len = reglen;
1342
3808d348
SG		 1343 regbuf = NULL;
1344 if (reglen) {
1345 regbuf = vzalloc(reglen);
1346 if (!regbuf)
1347 return -ENOMEM;
1348 }
1da177e4
LT		 1349
1350 ops->get_regs(dev, &regs, regbuf);
1351
1352 ret = -EFAULT;
1353 if (copy_to_user(useraddr, &regs, sizeof(regs)))
1354 goto out;
1355 useraddr += offsetof(struct ethtool_regs, data);
67ae7cf1 1356 if (regbuf && copy_to_user(useraddr, regbuf, regs.len))
1da177e4
LT		 1357 goto out;
1358 ret = 0;
1359
1360 out:
a77f5db3 1361 vfree(regbuf);
1da177e4
LT		 1362 return ret;
1363}
1364
d73d3a8c
BH		 1365static int ethtool_reset(struct net_device *dev, char __user *useraddr)
1366{
1367 struct ethtool_value reset;
1368 int ret;
1369
1370 if (!dev->ethtool_ops->reset)
1371 return -EOPNOTSUPP;
1372
1373 if (copy_from_user(&reset, useraddr, sizeof(reset)))
1374 return -EFAULT;
1375
1376 ret = dev->ethtool_ops->reset(dev, &reset.data);
1377 if (ret)
1378 return ret;
1379
1380 if (copy_to_user(useraddr, &reset, sizeof(reset)))
1381 return -EFAULT;
1382 return 0;
1383}
1384
1da177e4
LT		 1385static int ethtool_get_wol(struct net_device *dev, char __user *useraddr)
1386{
8e557421 1387 struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL };
1da177e4
LT		 1388
1389 if (!dev->ethtool_ops->get_wol)
1390 return -EOPNOTSUPP;
1391
1392 dev->ethtool_ops->get_wol(dev, &wol);
1393
1394 if (copy_to_user(useraddr, &wol, sizeof(wol)))
1395 return -EFAULT;
1396 return 0;
1397}
1398
1399static int ethtool_set_wol(struct net_device *dev, char __user *useraddr)
1400{
1401 struct ethtool_wolinfo wol;
61941143 1402 int ret;
1da177e4
LT		 1403
1404 if (!dev->ethtool_ops->set_wol)
1405 return -EOPNOTSUPP;
1406
1407 if (copy_from_user(&wol, useraddr, sizeof(wol)))
1408 return -EFAULT;
1409
61941143
HK		 1410 ret = dev->ethtool_ops->set_wol(dev, &wol);
1411 if (ret)
1412 return ret;
1413
1414 dev->wol_enabled = !!wol.wolopts;
1415
1416 return 0;
1da177e4
LT		 1417}
1418
80f12ecc
YM		 1419static int ethtool_get_eee(struct net_device *dev, char __user *useraddr)
1420{
1421 struct ethtool_eee edata;
1422 int rc;
1423
1424 if (!dev->ethtool_ops->get_eee)
1425 return -EOPNOTSUPP;
1426
1427 memset(&edata, 0, sizeof(struct ethtool_eee));
1428 edata.cmd = ETHTOOL_GEEE;
1429 rc = dev->ethtool_ops->get_eee(dev, &edata);
1430
1431 if (rc)
1432 return rc;
1433
1434 if (copy_to_user(useraddr, &edata, sizeof(edata)))
1435 return -EFAULT;
1436
1437 return 0;
1438}
1439
1440static int ethtool_set_eee(struct net_device *dev, char __user *useraddr)
1441{
1442 struct ethtool_eee edata;
1443
1444 if (!dev->ethtool_ops->set_eee)
1445 return -EOPNOTSUPP;
1446
1447 if (copy_from_user(&edata, useraddr, sizeof(edata)))
1448 return -EFAULT;
1449
1450 return dev->ethtool_ops->set_eee(dev, &edata);
1451}
1452
1da177e4
LT		 1453static int ethtool_nway_reset(struct net_device *dev)
1454{
1455 if (!dev->ethtool_ops->nway_reset)
1456 return -EOPNOTSUPP;
1457
1458 return dev->ethtool_ops->nway_reset(dev);
1459}
1460
e596e6e4
BH		 1461static int ethtool_get_link(struct net_device *dev, char __user *useraddr)
1462{
1463 struct ethtool_value edata = { .cmd = ETHTOOL_GLINK };
1464
1465 if (!dev->ethtool_ops->get_link)
1466 return -EOPNOTSUPP;
1467
1468 edata.data = netif_running(dev) && dev->ethtool_ops->get_link(dev);
1469
1470 if (copy_to_user(useraddr, &edata, sizeof(edata)))
1471 return -EFAULT;
1472 return 0;
1473}
1474
081d094e
BH		 1475static int ethtool_get_any_eeprom(struct net_device *dev, void __user *useraddr,
1476 int (*getter)(struct net_device *,
1477 struct ethtool_eeprom *, u8 *),
1478 u32 total_len)
1da177e4
LT		 1479{
1480 struct ethtool_eeprom eeprom;
b131dd5d
MSB		 1481 void __user *userbuf = useraddr + sizeof(eeprom);
1482 u32 bytes_remaining;
1da177e4 1483 u8 *data;
b131dd5d 1484 int ret = 0;
1da177e4 1485
1da177e4
LT		 1486 if (copy_from_user(&eeprom, useraddr, sizeof(eeprom)))
1487 return -EFAULT;
1488
1489 /* Check for wrap and zero */
1490 if (eeprom.offset + eeprom.len <= eeprom.offset)
1491 return -EINVAL;
1492
1493 /* Check for exceeding total eeprom len */
081d094e 1494 if (eeprom.offset + eeprom.len > total_len)
1da177e4
LT		 1495 return -EINVAL;
1496
b131dd5d 1497 data = kmalloc(PAGE_SIZE, GFP_USER);
1da177e4
LT		 1498 if (!data)
1499 return -ENOMEM;
1500
b131dd5d
MSB		 1501 bytes_remaining = eeprom.len;
1502 while (bytes_remaining > 0) {
1503 eeprom.len = min(bytes_remaining, (u32)PAGE_SIZE);
1504
081d094e 1505 ret = getter(dev, &eeprom, data);
b131dd5d
MSB		 1506 if (ret)
1507 break;
1508 if (copy_to_user(userbuf, data, eeprom.len)) {
1509 ret = -EFAULT;
1510 break;
1511 }
1512 userbuf += eeprom.len;
1513 eeprom.offset += eeprom.len;
1514 bytes_remaining -= eeprom.len;
1515 }
1da177e4 1516
c5835df9
MSB		 1517 eeprom.len = userbuf - (useraddr + sizeof(eeprom));
1518 eeprom.offset -= eeprom.len;
1519 if (copy_to_user(useraddr, &eeprom, sizeof(eeprom)))
1520 ret = -EFAULT;
1521
1da177e4
LT		 1522 kfree(data);
1523 return ret;
1524}
1525
081d094e
BH		 1526static int ethtool_get_eeprom(struct net_device *dev, void __user *useraddr)
1527{
1528 const struct ethtool_ops *ops = dev->ethtool_ops;
1529
e0fb6fb6
GR		 1530 if (!ops->get_eeprom || !ops->get_eeprom_len ||
1531 !ops->get_eeprom_len(dev))
081d094e
BH		 1532 return -EOPNOTSUPP;
1533
1534 return ethtool_get_any_eeprom(dev, useraddr, ops->get_eeprom,
1535 ops->get_eeprom_len(dev));
1536}
1537
1da177e4
LT		 1538static int ethtool_set_eeprom(struct net_device *dev, void __user *useraddr)
1539{
1540 struct ethtool_eeprom eeprom;
76fd8593 1541 const struct ethtool_ops *ops = dev->ethtool_ops;
b131dd5d
MSB		 1542 void __user *userbuf = useraddr + sizeof(eeprom);
1543 u32 bytes_remaining;
1da177e4 1544 u8 *data;
b131dd5d 1545 int ret = 0;
1da177e4 1546
e0fb6fb6
GR		 1547 if (!ops->set_eeprom || !ops->get_eeprom_len ||
1548 !ops->get_eeprom_len(dev))
1da177e4
LT		 1549 return -EOPNOTSUPP;
1550
1551 if (copy_from_user(&eeprom, useraddr, sizeof(eeprom)))
1552 return -EFAULT;
1553
1554 /* Check for wrap and zero */
1555 if (eeprom.offset + eeprom.len <= eeprom.offset)
1556 return -EINVAL;
1557
1558 /* Check for exceeding total eeprom len */
1559 if (eeprom.offset + eeprom.len > ops->get_eeprom_len(dev))
1560 return -EINVAL;
1561
b131dd5d 1562 data = kmalloc(PAGE_SIZE, GFP_USER);
1da177e4
LT		 1563 if (!data)
1564 return -ENOMEM;
1565
b131dd5d
MSB		 1566 bytes_remaining = eeprom.len;
1567 while (bytes_remaining > 0) {
1568 eeprom.len = min(bytes_remaining, (u32)PAGE_SIZE);
1569
1570 if (copy_from_user(data, userbuf, eeprom.len)) {
1571 ret = -EFAULT;
1572 break;
1573 }
1574 ret = ops->set_eeprom(dev, &eeprom, data);
1575 if (ret)
1576 break;
1577 userbuf += eeprom.len;
1578 eeprom.offset += eeprom.len;
1579 bytes_remaining -= eeprom.len;
1580 }
1da177e4 1581
1da177e4
LT		 1582 kfree(data);
1583 return ret;
1584}
1585
97f8aefb 1586static noinline_for_stack int ethtool_get_coalesce(struct net_device *dev,
1587 void __user *useraddr)
1da177e4 1588{
8e557421 1589 struct ethtool_coalesce coalesce = { .cmd = ETHTOOL_GCOALESCE };
1da177e4
LT		 1590
1591 if (!dev->ethtool_ops->get_coalesce)
1592 return -EOPNOTSUPP;
1593
1594 dev->ethtool_ops->get_coalesce(dev, &coalesce);
1595
1596 if (copy_to_user(useraddr, &coalesce, sizeof(coalesce)))
1597 return -EFAULT;
1598 return 0;
1599}
1600
97f8aefb 1601static noinline_for_stack int ethtool_set_coalesce(struct net_device *dev,
1602 void __user *useraddr)
1da177e4
LT		 1603{
1604 struct ethtool_coalesce coalesce;
1605
fa04ae5c 1606 if (!dev->ethtool_ops->set_coalesce)
1da177e4
LT		 1607 return -EOPNOTSUPP;
1608
1609 if (copy_from_user(&coalesce, useraddr, sizeof(coalesce)))
1610 return -EFAULT;
1611
1612 return dev->ethtool_ops->set_coalesce(dev, &coalesce);
1613}
1614
1615static int ethtool_get_ringparam(struct net_device *dev, void __user *useraddr)
1616{
8e557421 1617 struct ethtool_ringparam ringparam = { .cmd = ETHTOOL_GRINGPARAM };
1da177e4
LT		 1618
1619 if (!dev->ethtool_ops->get_ringparam)
1620 return -EOPNOTSUPP;
1621
1622 dev->ethtool_ops->get_ringparam(dev, &ringparam);
1623
1624 if (copy_to_user(useraddr, &ringparam, sizeof(ringparam)))
1625 return -EFAULT;
1626 return 0;
1627}
1628
1629static int ethtool_set_ringparam(struct net_device *dev, void __user *useraddr)
1630{
37e2d99b 1631 struct ethtool_ringparam ringparam, max = { .cmd = ETHTOOL_GRINGPARAM };
1da177e4 1632
37e2d99b 1633 if (!dev->ethtool_ops->set_ringparam || !dev->ethtool_ops->get_ringparam)
1da177e4
LT		 1634 return -EOPNOTSUPP;
1635
1636 if (copy_from_user(&ringparam, useraddr, sizeof(ringparam)))
1637 return -EFAULT;
1638
37e2d99b
EE		 1639 dev->ethtool_ops->get_ringparam(dev, &max);
1640
1641 /* ensure new ring parameters are within the maximums */
1642 if (ringparam.rx_pending > max.rx_max_pending ||
1643 ringparam.rx_mini_pending > max.rx_mini_max_pending ||
1644 ringparam.rx_jumbo_pending > max.rx_jumbo_max_pending ||
1645 ringparam.tx_pending > max.tx_max_pending)
1646 return -EINVAL;
1647
1da177e4
LT		 1648 return dev->ethtool_ops->set_ringparam(dev, &ringparam);
1649}
1650
8b5933c3 1651static noinline_for_stack int ethtool_get_channels(struct net_device *dev,
1652 void __user *useraddr)
1653{
1654 struct ethtool_channels channels = { .cmd = ETHTOOL_GCHANNELS };
1655
1656 if (!dev->ethtool_ops->get_channels)
1657 return -EOPNOTSUPP;
1658
1659 dev->ethtool_ops->get_channels(dev, &channels);
1660
1661 if (copy_to_user(useraddr, &channels, sizeof(channels)))
1662 return -EFAULT;
1663 return 0;
1664}
1665
1666static noinline_for_stack int ethtool_set_channels(struct net_device *dev,
1667 void __user *useraddr)
1668{
b8c8a2e2 1669 struct ethtool_channels channels, curr = { .cmd = ETHTOOL_GCHANNELS };
1661d346 1670 u16 from_channel, to_channel;
d4ab4286 1671 u32 max_rx_in_use = 0;
1661d346 1672 unsigned int i;
8b5933c3 1673
8bf36862 1674 if (!dev->ethtool_ops->set_channels || !dev->ethtool_ops->get_channels)
8b5933c3 1675 return -EOPNOTSUPP;
1676
1677 if (copy_from_user(&channels, useraddr, sizeof(channels)))
1678 return -EFAULT;
1679
b8c8a2e2 1680 dev->ethtool_ops->get_channels(dev, &curr);
8bf36862
KJ		 1681
1682 /* ensure new counts are within the maximums */
b8c8a2e2
JK		 1683 if (channels.rx_count > curr.max_rx ||
1684 channels.tx_count > curr.max_tx ||
1685 channels.combined_count > curr.max_combined ||
1686 channels.other_count > curr.max_other)
8bf36862
KJ		 1687 return -EINVAL;
1688
d4ab4286
KJ		 1689 /* ensure the new Rx count fits within the configured Rx flow
1690 * indirection table settings */
1691 if (netif_is_rxfh_configured(dev) &&
1692 !ethtool_get_max_rxfh_channel(dev, &max_rx_in_use) &&
1693 (channels.combined_count + channels.rx_count) <= max_rx_in_use)
1694 return -EINVAL;
1695
1661d346
JK		 1696 /* Disabling channels, query zero-copy AF_XDP sockets */
1697 from_channel = channels.combined_count +
1698 min(channels.rx_count, channels.tx_count);
1699 to_channel = curr.combined_count + max(curr.rx_count, curr.tx_count);
1700 for (i = from_channel; i < to_channel; i++)
1701 if (xdp_get_umem_from_qid(dev, i))
1702 return -EINVAL;
1703
8b5933c3 1704 return dev->ethtool_ops->set_channels(dev, &channels);
1705}
1706
1da177e4
LT		 1707static int ethtool_get_pauseparam(struct net_device *dev, void __user *useraddr)
1708{
1709 struct ethtool_pauseparam pauseparam = { ETHTOOL_GPAUSEPARAM };
1710
1711 if (!dev->ethtool_ops->get_pauseparam)
1712 return -EOPNOTSUPP;
1713
1714 dev->ethtool_ops->get_pauseparam(dev, &pauseparam);
1715
1716 if (copy_to_user(useraddr, &pauseparam, sizeof(pauseparam)))
1717 return -EFAULT;
1718 return 0;
1719}
1720
1721static int ethtool_set_pauseparam(struct net_device *dev, void __user *useraddr)
1722{
1723 struct ethtool_pauseparam pauseparam;
1724
e1b90c41 1725 if (!dev->ethtool_ops->set_pauseparam)
1da177e4
LT		 1726 return -EOPNOTSUPP;
1727
1728 if (copy_from_user(&pauseparam, useraddr, sizeof(pauseparam)))
1729 return -EFAULT;
1730
1731 return dev->ethtool_ops->set_pauseparam(dev, &pauseparam);
1732}
1733
1da177e4
LT		 1734static int ethtool_self_test(struct net_device *dev, char __user *useraddr)
1735{
1736 struct ethtool_test test;
76fd8593 1737 const struct ethtool_ops *ops = dev->ethtool_ops;
1da177e4 1738 u64 *data;
ff03d49f 1739 int ret, test_len;
1da177e4 1740
a9828ec6 1741 if (!ops->self_test || !ops->get_sset_count)
1da177e4
LT		 1742 return -EOPNOTSUPP;
1743
a9828ec6 1744 test_len = ops->get_sset_count(dev, ETH_SS_TEST);
ff03d49f
JG		 1745 if (test_len < 0)
1746 return test_len;
1747 WARN_ON(test_len == 0);
1748
1da177e4
LT		 1749 if (copy_from_user(&test, useraddr, sizeof(test)))
1750 return -EFAULT;
1751
ff03d49f 1752 test.len = test_len;
6da2ec56 1753 data = kmalloc_array(test_len, sizeof(u64), GFP_USER);
1da177e4
LT		 1754 if (!data)
1755 return -ENOMEM;
1756
1757 ops->self_test(dev, &test, data);
1758
1759 ret = -EFAULT;
1760 if (copy_to_user(useraddr, &test, sizeof(test)))
1761 goto out;
1762 useraddr += sizeof(test);
1763 if (copy_to_user(useraddr, data, test.len * sizeof(u64)))
1764 goto out;
1765 ret = 0;
1766
1767 out:
1768 kfree(data);
1769 return ret;
1770}
1771
1772static int ethtool_get_strings(struct net_device *dev, void __user *useraddr)
1773{
1774 struct ethtool_gstrings gstrings;
1da177e4
LT		 1775 u8 *data;
1776 int ret;
1777
1da177e4
LT		 1778 if (copy_from_user(&gstrings, useraddr, sizeof(gstrings)))
1779 return -EFAULT;
1780
340ae165 1781 ret = __ethtool_get_sset_count(dev, gstrings.string_set);
a9828ec6
BH		 1782 if (ret < 0)
1783 return ret;
4d1ceea8
AS		 1784 if (ret > S32_MAX / ETH_GSTRING_LEN)
1785 return -ENOMEM;
1786 WARN_ON_ONCE(!ret);
a9828ec6
BH		 1787
1788 gstrings.len = ret;
fad953ce 1789 data = vzalloc(array_size(gstrings.len, ETH_GSTRING_LEN));
4d1ceea8 1790 if (gstrings.len && !data)
1da177e4
LT		 1791 return -ENOMEM;
1792
340ae165 1793 __ethtool_get_strings(dev, gstrings.string_set, data);
1da177e4
LT		 1794
1795 ret = -EFAULT;
1796 if (copy_to_user(useraddr, &gstrings, sizeof(gstrings)))
1797 goto out;
1798 useraddr += sizeof(gstrings);
4d1ceea8
AS		 1799 if (gstrings.len &&
1800 copy_to_user(useraddr, data, gstrings.len * ETH_GSTRING_LEN))
1da177e4
LT		 1801 goto out;
1802 ret = 0;
1803
340ae165 1804out:
4d1ceea8 1805 vfree(data);
1da177e4
LT		 1806 return ret;
1807}
1808
1809static int ethtool_phys_id(struct net_device *dev, void __user *useraddr)
1810{
1811 struct ethtool_value id;
68f512f2 1812 static bool busy;
c03a14e8 1813 const struct ethtool_ops *ops = dev->ethtool_ops;
68f512f2 1814 int rc;
1da177e4 1815
c03a14e8 1816 if (!ops->set_phys_id)
1da177e4
LT		 1817 return -EOPNOTSUPP;
1818
68f512f2
BH		 1819 if (busy)
1820 return -EBUSY;
1821
1da177e4
LT		 1822 if (copy_from_user(&id, useraddr, sizeof(id)))
1823 return -EFAULT;
1824
c03a14e8 1825 rc = ops->set_phys_id(dev, ETHTOOL_ID_ACTIVE);
fce55922 1826 if (rc < 0)
68f512f2
BH		 1827 return rc;
1828
1829 /* Drop the RTNL lock while waiting, but prevent reentry or
1830 * removal of the device.
1831 */
1832 busy = true;
1833 dev_hold(dev);
1834 rtnl_unlock();
1835
1836 if (rc == 0) {
1837 /* Driver will handle this itself */
1838 schedule_timeout_interruptible(
143780c6 1839 id.data ? (id.data * HZ) : MAX_SCHEDULE_TIMEOUT);
68f512f2 1840 } else {
fce55922
AB		 1841 /* Driver expects to be called at twice the frequency in rc */
1842 int n = rc * 2, i, interval = HZ / n;
1843
1844 /* Count down seconds */
68f512f2 1845 do {
fce55922
AB		 1846 /* Count down iterations per second */
1847 i = n;
1848 do {
1849 rtnl_lock();
c03a14e8 1850 rc = ops->set_phys_id(dev,
fce55922
AB		 1851 (i & 1) ? ETHTOOL_ID_OFF : ETHTOOL_ID_ON);
1852 rtnl_unlock();
1853 if (rc)
1854 break;
1855 schedule_timeout_interruptible(interval);
1856 } while (!signal_pending(current) && --i != 0);
68f512f2
BH		 1857 } while (!signal_pending(current) &&
1858 (id.data == 0 || --id.data != 0));
1859 }
1860
1861 rtnl_lock();
1862 dev_put(dev);
1863 busy = false;
1864
c03a14e8 1865 (void) ops->set_phys_id(dev, ETHTOOL_ID_INACTIVE);
68f512f2 1866 return rc;
1da177e4
LT		 1867}
1868
1869static int ethtool_get_stats(struct net_device *dev, void __user *useraddr)
1870{
1871 struct ethtool_stats stats;
76fd8593 1872 const struct ethtool_ops *ops = dev->ethtool_ops;
1da177e4 1873 u64 *data;
ff03d49f 1874 int ret, n_stats;
1da177e4 1875
a9828ec6 1876 if (!ops->get_ethtool_stats || !ops->get_sset_count)
1da177e4
LT		 1877 return -EOPNOTSUPP;
1878
a9828ec6 1879 n_stats = ops->get_sset_count(dev, ETH_SS_STATS);
ff03d49f
JG		 1880 if (n_stats < 0)
1881 return n_stats;
4d1ceea8
AS		 1882 if (n_stats > S32_MAX / sizeof(u64))
1883 return -ENOMEM;
1884 WARN_ON_ONCE(!n_stats);
1da177e4
LT		 1885 if (copy_from_user(&stats, useraddr, sizeof(stats)))
1886 return -EFAULT;
1887
ff03d49f 1888 stats.n_stats = n_stats;
fad953ce 1889 data = vzalloc(array_size(n_stats, sizeof(u64)));
4d1ceea8 1890 if (n_stats && !data)
1da177e4
LT		 1891 return -ENOMEM;
1892
1893 ops->get_ethtool_stats(dev, &stats, data);
1894
1895 ret = -EFAULT;
1896 if (copy_to_user(useraddr, &stats, sizeof(stats)))
1897 goto out;
1898 useraddr += sizeof(stats);
4d1ceea8 1899 if (n_stats && copy_to_user(useraddr, data, n_stats * sizeof(u64)))
1da177e4
LT		 1900 goto out;
1901 ret = 0;
1902
1903 out:
4d1ceea8 1904 vfree(data);
1da177e4
LT		 1905 return ret;
1906}
1907
f3a40945
AL		 1908static int ethtool_get_phy_stats(struct net_device *dev, void __user *useraddr)
1909{
99943382 1910 const struct ethtool_ops *ops = dev->ethtool_ops;
f3a40945 1911 struct phy_device *phydev = dev->phydev;
99943382 1912 struct ethtool_stats stats;
f3a40945
AL		 1913 u64 *data;
1914 int ret, n_stats;
1915
99943382 1916 if (!phydev && (!ops->get_ethtool_phy_stats || !ops->get_sset_count))
f3a40945
AL		 1917 return -EOPNOTSUPP;
1918
99943382
FF		 1919 if (dev->phydev && !ops->get_ethtool_phy_stats)
1920 n_stats = phy_ethtool_get_sset_count(dev->phydev);
1921 else
1922 n_stats = ops->get_sset_count(dev, ETH_SS_PHY_STATS);
f3a40945
AL		 1923 if (n_stats < 0)
1924 return n_stats;
4d1ceea8
AS		 1925 if (n_stats > S32_MAX / sizeof(u64))
1926 return -ENOMEM;
1927 WARN_ON_ONCE(!n_stats);
f3a40945
AL		 1928
1929 if (copy_from_user(&stats, useraddr, sizeof(stats)))
1930 return -EFAULT;
1931
1932 stats.n_stats = n_stats;
fad953ce 1933 data = vzalloc(array_size(n_stats, sizeof(u64)));
4d1ceea8 1934 if (n_stats && !data)
f3a40945
AL		 1935 return -ENOMEM;
1936
99943382
FF		 1937 if (dev->phydev && !ops->get_ethtool_phy_stats) {
1938 ret = phy_ethtool_get_stats(dev->phydev, &stats, data);
1939 if (ret < 0)
1940 return ret;
1941 } else {
1942 ops->get_ethtool_phy_stats(dev, &stats, data);
1943 }
f3a40945
AL		 1944
1945 ret = -EFAULT;
1946 if (copy_to_user(useraddr, &stats, sizeof(stats)))
1947 goto out;
1948 useraddr += sizeof(stats);
4d1ceea8 1949 if (n_stats && copy_to_user(useraddr, data, n_stats * sizeof(u64)))
f3a40945
AL		 1950 goto out;
1951 ret = 0;
1952
1953 out:
4d1ceea8 1954 vfree(data);
f3a40945
AL		 1955 return ret;
1956}
1957
0bf0519d 1958static int ethtool_get_perm_addr(struct net_device *dev, void __user *useraddr)
a6f9a705
JW		 1959{
1960 struct ethtool_perm_addr epaddr;
a6f9a705 1961
313674af 1962 if (copy_from_user(&epaddr, useraddr, sizeof(epaddr)))
a6f9a705
JW		 1963 return -EFAULT;
1964
313674af
MW		 1965 if (epaddr.size < dev->addr_len)
1966 return -ETOOSMALL;
1967 epaddr.size = dev->addr_len;
a6f9a705 1968
a6f9a705 1969 if (copy_to_user(useraddr, &epaddr, sizeof(epaddr)))
313674af 1970 return -EFAULT;
a6f9a705 1971 useraddr += sizeof(epaddr);
313674af
MW		 1972 if (copy_to_user(useraddr, dev->perm_addr, epaddr.size))
1973 return -EFAULT;
1974 return 0;
a6f9a705
JW		 1975}
1976
13c99b24
JG		 1977static int ethtool_get_value(struct net_device *dev, char __user *useraddr,
1978 u32 cmd, u32 (*actor)(struct net_device *))
3ae7c0b2 1979{
8e557421 1980 struct ethtool_value edata = { .cmd = cmd };
3ae7c0b2 1981
13c99b24 1982 if (!actor)
3ae7c0b2
JG		 1983 return -EOPNOTSUPP;
1984
13c99b24 1985 edata.data = actor(dev);
3ae7c0b2
JG		 1986
1987 if (copy_to_user(useraddr, &edata, sizeof(edata)))
1988 return -EFAULT;
1989 return 0;
1990}
1991
13c99b24
JG		 1992static int ethtool_set_value_void(struct net_device *dev, char __user *useraddr,
1993 void (*actor)(struct net_device *, u32))
3ae7c0b2
JG		 1994{
1995 struct ethtool_value edata;
1996
13c99b24 1997 if (!actor)
3ae7c0b2
JG		 1998 return -EOPNOTSUPP;
1999
2000 if (copy_from_user(&edata, useraddr, sizeof(edata)))
2001 return -EFAULT;
2002
13c99b24 2003 actor(dev, edata.data);
339bf024
JG		 2004 return 0;
2005}
2006
13c99b24
JG		 2007static int ethtool_set_value(struct net_device *dev, char __user *useraddr,
2008 int (*actor)(struct net_device *, u32))
339bf024
JG		 2009{
2010 struct ethtool_value edata;
2011
13c99b24 2012 if (!actor)
339bf024
JG		 2013 return -EOPNOTSUPP;
2014
2015 if (copy_from_user(&edata, useraddr, sizeof(edata)))
2016 return -EFAULT;
2017
13c99b24 2018 return actor(dev, edata.data);
339bf024
JG		 2019}
2020
97f8aefb 2021static noinline_for_stack int ethtool_flash_device(struct net_device *dev,
2022 char __user *useraddr)
05c6a8d7
AK		 2023{
2024 struct ethtool_flash efl;
2025
2026 if (copy_from_user(&efl, useraddr, sizeof(efl)))
2027 return -EFAULT;
2028
2029 if (!dev->ethtool_ops->flash_device)
2030 return -EOPNOTSUPP;
2031
786f5281
BH		 2032 efl.data[ETHTOOL_FLASH_MAX_FILENAME - 1] = 0;
2033
05c6a8d7
AK		 2034 return dev->ethtool_ops->flash_device(dev, &efl);
2035}
2036
29dd54b7
AC		 2037static int ethtool_set_dump(struct net_device *dev,
2038 void __user *useraddr)
2039{
2040 struct ethtool_dump dump;
2041
2042 if (!dev->ethtool_ops->set_dump)
2043 return -EOPNOTSUPP;
2044
2045 if (copy_from_user(&dump, useraddr, sizeof(dump)))
2046 return -EFAULT;
2047
2048 return dev->ethtool_ops->set_dump(dev, &dump);
2049}
2050
2051static int ethtool_get_dump_flag(struct net_device *dev,
2052 void __user *useraddr)
2053{
2054 int ret;
2055 struct ethtool_dump dump;
2056 const struct ethtool_ops *ops = dev->ethtool_ops;
2057
c03a14e8 2058 if (!ops->get_dump_flag)
29dd54b7
AC		 2059 return -EOPNOTSUPP;
2060
2061 if (copy_from_user(&dump, useraddr, sizeof(dump)))
2062 return -EFAULT;
2063
2064 ret = ops->get_dump_flag(dev, &dump);
2065 if (ret)
2066 return ret;
2067
2068 if (copy_to_user(useraddr, &dump, sizeof(dump)))
2069 return -EFAULT;
2070 return 0;
2071}
2072
2073static int ethtool_get_dump_data(struct net_device *dev,
2074 void __user *useraddr)
2075{
2076 int ret;
2077 __u32 len;
2078 struct ethtool_dump dump, tmp;
2079 const struct ethtool_ops *ops = dev->ethtool_ops;
2080 void *data = NULL;
2081
c03a14e8 2082 if (!ops->get_dump_data || !ops->get_dump_flag)
29dd54b7
AC		 2083 return -EOPNOTSUPP;
2084
2085 if (copy_from_user(&dump, useraddr, sizeof(dump)))
2086 return -EFAULT;
2087
2088 memset(&tmp, 0, sizeof(tmp));
2089 tmp.cmd = ETHTOOL_GET_DUMP_FLAG;
2090 ret = ops->get_dump_flag(dev, &tmp);
2091 if (ret)
2092 return ret;
2093
c590b5e2 2094 len = min(tmp.len, dump.len);
29dd54b7
AC		 2095 if (!len)
2096 return -EFAULT;
2097
c590b5e2
MS		 2098 /* Don't ever let the driver think there's more space available
2099 * than it requested with .get_dump_flag().
2100 */
2101 dump.len = len;
2102
2103 /* Always allocate enough space to hold the whole thing so that the
2104 * driver does not need to check the length and bother with partial
2105 * dumping.
2106 */
29dd54b7
AC		 2107 data = vzalloc(tmp.len);
2108 if (!data)
2109 return -ENOMEM;
2110 ret = ops->get_dump_data(dev, &dump, data);
2111 if (ret)
2112 goto out;
2113
c590b5e2
MS		 2114 /* There are two sane possibilities:
2115 * 1. The driver's .get_dump_data() does not touch dump.len.
2116 * 2. Or it may set dump.len to how much it really writes, which
2117 * should be tmp.len (or len if it can do a partial dump).
2118 * In any case respond to userspace with the actual length of data
2119 * it's receiving.
2120 */
2121 WARN_ON(dump.len != len && dump.len != tmp.len);
2122 dump.len = len;
2123
29dd54b7
AC		 2124 if (copy_to_user(useraddr, &dump, sizeof(dump))) {
2125 ret = -EFAULT;
2126 goto out;
2127 }
2128 useraddr += offsetof(struct ethtool_dump, data);
2129 if (copy_to_user(useraddr, data, len))
2130 ret = -EFAULT;
2131out:
2132 vfree(data);
2133 return ret;
2134}
2135
c8f3a8c3
RC		 2136static int ethtool_get_ts_info(struct net_device *dev, void __user *useraddr)
2137{
2138 int err = 0;
2139 struct ethtool_ts_info info;
2140 const struct ethtool_ops *ops = dev->ethtool_ops;
2141 struct phy_device *phydev = dev->phydev;
2142
2143 memset(&info, 0, sizeof(info));
2144 info.cmd = ETHTOOL_GET_TS_INFO;
2145
2146 if (phydev && phydev->drv && phydev->drv->ts_info) {
c8f3a8c3 2147 err = phydev->drv->ts_info(phydev, &info);
c03a14e8 2148 } else if (ops->get_ts_info) {
c8f3a8c3 2149 err = ops->get_ts_info(dev, &info);
c8f3a8c3
RC		 2150 } else {
2151 info.so_timestamping =
2152 SOF_TIMESTAMPING_RX_SOFTWARE |
2153 SOF_TIMESTAMPING_SOFTWARE;
2154 info.phc_index = -1;
2155 }
2156
2157 if (err)
2158 return err;
2159
2160 if (copy_to_user(useraddr, &info, sizeof(info)))
2161 err = -EFAULT;
2162
2163 return err;
2164}
2165
2f438366
ES		 2166static int __ethtool_get_module_info(struct net_device *dev,
2167 struct ethtool_modinfo *modinfo)
2168{
2169 const struct ethtool_ops *ops = dev->ethtool_ops;
2170 struct phy_device *phydev = dev->phydev;
2171
e679c9c1
RK		 2172 if (dev->sfp_bus)
2173 return sfp_get_module_info(dev->sfp_bus, modinfo);
2174
2f438366
ES		 2175 if (phydev && phydev->drv && phydev->drv->module_info)
2176 return phydev->drv->module_info(phydev, modinfo);
2177
2178 if (ops->get_module_info)
2179 return ops->get_module_info(dev, modinfo);
2180
2181 return -EOPNOTSUPP;
2182}
2183
41c3cb6d
SH		 2184static int ethtool_get_module_info(struct net_device *dev,
2185 void __user *useraddr)
2186{
2187 int ret;
2188 struct ethtool_modinfo modinfo;
41c3cb6d
SH		 2189
2190 if (copy_from_user(&modinfo, useraddr, sizeof(modinfo)))
2191 return -EFAULT;
2192
2f438366 2193 ret = __ethtool_get_module_info(dev, &modinfo);
41c3cb6d
SH		 2194 if (ret)
2195 return ret;
2196
2197 if (copy_to_user(useraddr, &modinfo, sizeof(modinfo)))
2198 return -EFAULT;
2199
2200 return 0;
2201}
2202
2f438366
ES		 2203static int __ethtool_get_module_eeprom(struct net_device *dev,
2204 struct ethtool_eeprom *ee, u8 *data)
2205{
2206 const struct ethtool_ops *ops = dev->ethtool_ops;
2207 struct phy_device *phydev = dev->phydev;
2208
e679c9c1
RK		 2209 if (dev->sfp_bus)
2210 return sfp_get_module_eeprom(dev->sfp_bus, ee, data);
2211
2f438366
ES		 2212 if (phydev && phydev->drv && phydev->drv->module_eeprom)
2213 return phydev->drv->module_eeprom(phydev, ee, data);
2214
2215 if (ops->get_module_eeprom)
2216 return ops->get_module_eeprom(dev, ee, data);
2217
2218 return -EOPNOTSUPP;
2219}
2220
41c3cb6d
SH		 2221static int ethtool_get_module_eeprom(struct net_device *dev,
2222 void __user *useraddr)
2223{
2224 int ret;
2225 struct ethtool_modinfo modinfo;
41c3cb6d 2226
2f438366 2227 ret = __ethtool_get_module_info(dev, &modinfo);
41c3cb6d
SH		 2228 if (ret)
2229 return ret;
2230
2f438366
ES		 2231 return ethtool_get_any_eeprom(dev, useraddr,
2232 __ethtool_get_module_eeprom,
41c3cb6d
SH		 2233 modinfo.eeprom_len);
2234}
2235
f0db9b07
GV		 2236static int ethtool_tunable_valid(const struct ethtool_tunable *tuna)
2237{
2238 switch (tuna->id) {
2239 case ETHTOOL_RX_COPYBREAK:
1255a505 2240 case ETHTOOL_TX_COPYBREAK:
f0db9b07
GV		 2241 if (tuna->len != sizeof(u32) ||
2242 tuna->type_id != ETHTOOL_TUNABLE_U32)
2243 return -EINVAL;
2244 break;
e1577c1c
IK		 2245 case ETHTOOL_PFC_PREVENTION_TOUT:
2246 if (tuna->len != sizeof(u16) ||
2247 tuna->type_id != ETHTOOL_TUNABLE_U16)
2248 return -EINVAL;
2249 break;
f0db9b07
GV		 2250 default:
2251 return -EINVAL;
2252 }
2253
2254 return 0;
2255}
2256
2257static int ethtool_get_tunable(struct net_device *dev, void __user *useraddr)
2258{
2259 int ret;
2260 struct ethtool_tunable tuna;
2261 const struct ethtool_ops *ops = dev->ethtool_ops;
2262 void *data;
2263
2264 if (!ops->get_tunable)
2265 return -EOPNOTSUPP;
2266 if (copy_from_user(&tuna, useraddr, sizeof(tuna)))
2267 return -EFAULT;
2268 ret = ethtool_tunable_valid(&tuna);
2269 if (ret)
2270 return ret;
2271 data = kmalloc(tuna.len, GFP_USER);
2272 if (!data)
2273 return -ENOMEM;
2274 ret = ops->get_tunable(dev, &tuna, data);
2275 if (ret)
2276 goto out;
2277 useraddr += sizeof(tuna);
2278 ret = -EFAULT;
2279 if (copy_to_user(useraddr, data, tuna.len))
2280 goto out;
2281 ret = 0;
2282
2283out:
2284 kfree(data);
2285 return ret;
2286}
2287
2288static int ethtool_set_tunable(struct net_device *dev, void __user *useraddr)
2289{
2290 int ret;
2291 struct ethtool_tunable tuna;
2292 const struct ethtool_ops *ops = dev->ethtool_ops;
2293 void *data;
2294
2295 if (!ops->set_tunable)
2296 return -EOPNOTSUPP;
2297 if (copy_from_user(&tuna, useraddr, sizeof(tuna)))
2298 return -EFAULT;
2299 ret = ethtool_tunable_valid(&tuna);
2300 if (ret)
2301 return ret;
f0db9b07 2302 useraddr += sizeof(tuna);
30e7e3ec
AV		 2303 data = memdup_user(useraddr, tuna.len);
2304 if (IS_ERR(data))
2305 return PTR_ERR(data);
f0db9b07
GV		 2306 ret = ops->set_tunable(dev, &tuna, data);
2307
f0db9b07
GV		 2308 kfree(data);
2309 return ret;
2310}
2311
421797b1
KL		 2312static int ethtool_get_per_queue_coalesce(struct net_device *dev,
2313 void __user *useraddr,
2314 struct ethtool_per_queue_op *per_queue_opt)
2315{
2316 u32 bit;
2317 int ret;
2318 DECLARE_BITMAP(queue_mask, MAX_NUM_QUEUE);
2319
2320 if (!dev->ethtool_ops->get_per_queue_coalesce)
2321 return -EOPNOTSUPP;
2322
2323 useraddr += sizeof(*per_queue_opt);
2324
3aa56885
YN		 2325 bitmap_from_arr32(queue_mask, per_queue_opt->queue_mask,
2326 MAX_NUM_QUEUE);
421797b1
KL		 2327
2328 for_each_set_bit(bit, queue_mask, MAX_NUM_QUEUE) {
2329 struct ethtool_coalesce coalesce = { .cmd = ETHTOOL_GCOALESCE };
2330
2331 ret = dev->ethtool_ops->get_per_queue_coalesce(dev, bit, &coalesce);
2332 if (ret != 0)
2333 return ret;
2334 if (copy_to_user(useraddr, &coalesce, sizeof(coalesce)))
2335 return -EFAULT;
2336 useraddr += sizeof(coalesce);
2337 }
2338
2339 return 0;
2340}
2341
f38d138a
KL		 2342static int ethtool_set_per_queue_coalesce(struct net_device *dev,
2343 void __user *useraddr,
2344 struct ethtool_per_queue_op *per_queue_opt)
2345{
2346 u32 bit;
2347 int i, ret = 0;
2348 int n_queue;
2349 struct ethtool_coalesce *backup = NULL, *tmp = NULL;
2350 DECLARE_BITMAP(queue_mask, MAX_NUM_QUEUE);
2351
2352 if ((!dev->ethtool_ops->set_per_queue_coalesce) ||
2353 (!dev->ethtool_ops->get_per_queue_coalesce))
2354 return -EOPNOTSUPP;
2355
2356 useraddr += sizeof(*per_queue_opt);
2357
3aa56885 2358 bitmap_from_arr32(queue_mask, per_queue_opt->queue_mask, MAX_NUM_QUEUE);
f38d138a
KL		 2359 n_queue = bitmap_weight(queue_mask, MAX_NUM_QUEUE);
2360 tmp = backup = kmalloc_array(n_queue, sizeof(*backup), GFP_KERNEL);
2361 if (!backup)
2362 return -ENOMEM;
2363
2364 for_each_set_bit(bit, queue_mask, MAX_NUM_QUEUE) {
2365 struct ethtool_coalesce coalesce;
2366
2367 ret = dev->ethtool_ops->get_per_queue_coalesce(dev, bit, tmp);
2368 if (ret != 0)
2369 goto roll_back;
2370
2371 tmp++;
2372
2373 if (copy_from_user(&coalesce, useraddr, sizeof(coalesce))) {
2374 ret = -EFAULT;
2375 goto roll_back;
2376 }
2377
2378 ret = dev->ethtool_ops->set_per_queue_coalesce(dev, bit, &coalesce);
2379 if (ret != 0)
2380 goto roll_back;
2381
2382 useraddr += sizeof(coalesce);
2383 }
2384
2385roll_back:
2386 if (ret != 0) {
2387 tmp = backup;
2388 for_each_set_bit(i, queue_mask, bit) {
2389 dev->ethtool_ops->set_per_queue_coalesce(dev, i, tmp);
2390 tmp++;
2391 }
2392 }
2393 kfree(backup);
2394
2395 return ret;
2396}
2397
58f5bbe3
WW		 2398static int ethtool_set_per_queue(struct net_device *dev,
2399 void __user *useraddr, u32 sub_cmd)
ac2c7ad0
KL		 2400{
2401 struct ethtool_per_queue_op per_queue_opt;
2402
2403 if (copy_from_user(&per_queue_opt, useraddr, sizeof(per_queue_opt)))
2404 return -EFAULT;
2405
58f5bbe3
WW		 2406 if (per_queue_opt.sub_command != sub_cmd)
2407 return -EINVAL;
2408
ac2c7ad0 2409 switch (per_queue_opt.sub_command) {
421797b1
KL		 2410 case ETHTOOL_GCOALESCE:
2411 return ethtool_get_per_queue_coalesce(dev, useraddr, &per_queue_opt);
f38d138a
KL		 2412 case ETHTOOL_SCOALESCE:
2413 return ethtool_set_per_queue_coalesce(dev, useraddr, &per_queue_opt);
ac2c7ad0
KL		 2414 default:
2415 return -EOPNOTSUPP;
2416 };
2417}
2418
968ad9da
RL		 2419static int ethtool_phy_tunable_valid(const struct ethtool_tunable *tuna)
2420{
2421 switch (tuna->id) {
65feddd5
RL		 2422 case ETHTOOL_PHY_DOWNSHIFT:
2423 if (tuna->len != sizeof(u8) ||
2424 tuna->type_id != ETHTOOL_TUNABLE_U8)
2425 return -EINVAL;
2426 break;
968ad9da
RL		 2427 default:
2428 return -EINVAL;
2429 }
2430
2431 return 0;
2432}
2433
2434static int get_phy_tunable(struct net_device *dev, void __user *useraddr)
2435{
2436 int ret;
2437 struct ethtool_tunable tuna;
2438 struct phy_device *phydev = dev->phydev;
2439 void *data;
2440
2441 if (!(phydev && phydev->drv && phydev->drv->get_tunable))
2442 return -EOPNOTSUPP;
2443
2444 if (copy_from_user(&tuna, useraddr, sizeof(tuna)))
2445 return -EFAULT;
2446 ret = ethtool_phy_tunable_valid(&tuna);
2447 if (ret)
2448 return ret;
2449 data = kmalloc(tuna.len, GFP_USER);
2450 if (!data)
2451 return -ENOMEM;
4b65246b 2452 mutex_lock(&phydev->lock);
968ad9da 2453 ret = phydev->drv->get_tunable(phydev, &tuna, data);
4b65246b 2454 mutex_unlock(&phydev->lock);
968ad9da
RL		 2455 if (ret)
2456 goto out;
2457 useraddr += sizeof(tuna);
2458 ret = -EFAULT;
2459 if (copy_to_user(useraddr, data, tuna.len))
2460 goto out;
2461 ret = 0;
2462
2463out:
2464 kfree(data);
2465 return ret;
2466}
2467
2468static int set_phy_tunable(struct net_device *dev, void __user *useraddr)
2469{
2470 int ret;
2471 struct ethtool_tunable tuna;
2472 struct phy_device *phydev = dev->phydev;
2473 void *data;
2474
2475 if (!(phydev && phydev->drv && phydev->drv->set_tunable))
2476 return -EOPNOTSUPP;
2477 if (copy_from_user(&tuna, useraddr, sizeof(tuna)))
2478 return -EFAULT;
2479 ret = ethtool_phy_tunable_valid(&tuna);
2480 if (ret)
2481 return ret;
968ad9da 2482 useraddr += sizeof(tuna);
30e7e3ec
AV		 2483 data = memdup_user(useraddr, tuna.len);
2484 if (IS_ERR(data))
2485 return PTR_ERR(data);
4b65246b 2486 mutex_lock(&phydev->lock);
968ad9da 2487 ret = phydev->drv->set_tunable(phydev, &tuna, data);
4b65246b 2488 mutex_unlock(&phydev->lock);
968ad9da 2489
968ad9da
RL		 2490 kfree(data);
2491 return ret;
2492}
2493
1a5f3da2
VSR		 2494static int ethtool_get_fecparam(struct net_device *dev, void __user *useraddr)
2495{
2496 struct ethtool_fecparam fecparam = { ETHTOOL_GFECPARAM };
a6d50512 2497 int rc;
1a5f3da2
VSR		 2498
2499 if (!dev->ethtool_ops->get_fecparam)
2500 return -EOPNOTSUPP;
2501
a6d50512
EC		 2502 rc = dev->ethtool_ops->get_fecparam(dev, &fecparam);
2503 if (rc)
2504 return rc;
1a5f3da2
VSR		 2505
2506 if (copy_to_user(useraddr, &fecparam, sizeof(fecparam)))
2507 return -EFAULT;
2508 return 0;
2509}
2510
2511static int ethtool_set_fecparam(struct net_device *dev, void __user *useraddr)
2512{
2513 struct ethtool_fecparam fecparam;
2514
2515 if (!dev->ethtool_ops->set_fecparam)
2516 return -EOPNOTSUPP;
2517
2518 if (copy_from_user(&fecparam, useraddr, sizeof(fecparam)))
2519 return -EFAULT;
2520
2521 return dev->ethtool_ops->set_fecparam(dev, &fecparam);
2522}
2523
600fed5e 2524/* The main entry point in this file. Called from net/core/dev_ioctl.c */
1da177e4 2525
881d966b 2526int dev_ethtool(struct net *net, struct ifreq *ifr)
1da177e4 2527{
881d966b 2528 struct net_device *dev = __dev_get_by_name(net, ifr->ifr_name);
1da177e4 2529 void __user *useraddr = ifr->ifr_data;
ac2c7ad0 2530 u32 ethcmd, sub_cmd;
1da177e4 2531 int rc;
b29d3145 2532 netdev_features_t old_features;
1da177e4 2533
1da177e4
LT		 2534 if (!dev || !netif_device_present(dev))
2535 return -ENODEV;
2536
97f8aefb 2537 if (copy_from_user(&ethcmd, useraddr, sizeof(ethcmd)))
1da177e4
LT		 2538 return -EFAULT;
2539
ac2c7ad0
KL		 2540 if (ethcmd == ETHTOOL_PERQUEUE) {
2541 if (copy_from_user(&sub_cmd, useraddr + sizeof(ethcmd), sizeof(sub_cmd)))
2542 return -EFAULT;
2543 } else {
2544 sub_cmd = ethcmd;
2545 }
75f3123c 2546 /* Allow some commands to be done by anyone */
ac2c7ad0 2547 switch (sub_cmd) {
0fdc100b 2548 case ETHTOOL_GSET:
75f3123c 2549 case ETHTOOL_GDRVINFO:
75f3123c 2550 case ETHTOOL_GMSGLVL:
2da45db2 2551 case ETHTOOL_GLINK:
75f3123c
SH		 2552 case ETHTOOL_GCOALESCE:
2553 case ETHTOOL_GRINGPARAM:
2554 case ETHTOOL_GPAUSEPARAM:
2555 case ETHTOOL_GRXCSUM:
2556 case ETHTOOL_GTXCSUM:
2557 case ETHTOOL_GSG:
f80400a2 2558 case ETHTOOL_GSSET_INFO:
75f3123c 2559 case ETHTOOL_GSTRINGS:
2da45db2 2560 case ETHTOOL_GSTATS:
f3a40945 2561 case ETHTOOL_GPHYSTATS:
75f3123c
SH		 2562 case ETHTOOL_GTSO:
2563 case ETHTOOL_GPERMADDR:
474ff260 2564 case ETHTOOL_GUFO:
75f3123c 2565 case ETHTOOL_GGSO:
1cab819b 2566 case ETHTOOL_GGRO:
339bf024
JG		 2567 case ETHTOOL_GFLAGS:
2568 case ETHTOOL_GPFLAGS:
0853ad66 2569 case ETHTOOL_GRXFH:
59089d8d
SB		 2570 case ETHTOOL_GRXRINGS:
2571 case ETHTOOL_GRXCLSRLCNT:
2572 case ETHTOOL_GRXCLSRULE:
2573 case ETHTOOL_GRXCLSRLALL:
2da45db2 2574 case ETHTOOL_GRXFHINDIR:
3de0b592 2575 case ETHTOOL_GRSSH:
5455c699 2576 case ETHTOOL_GFEATURES:
2da45db2 2577 case ETHTOOL_GCHANNELS:
c8f3a8c3 2578 case ETHTOOL_GET_TS_INFO:
2da45db2 2579 case ETHTOOL_GEEE:
f0db9b07 2580 case ETHTOOL_GTUNABLE:
968ad9da 2581 case ETHTOOL_PHY_GTUNABLE:
8006f6bf 2582 case ETHTOOL_GLINKSETTINGS:
1a5f3da2 2583 case ETHTOOL_GFECPARAM:
75f3123c
SH		 2584 break;
2585 default:
5e1fccc0 2586 if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
75f3123c
SH		 2587 return -EPERM;
2588 }
2589
97f8aefb 2590 if (dev->ethtool_ops->begin) {
2591 rc = dev->ethtool_ops->begin(dev);
2592 if (rc < 0)
1da177e4 2593 return rc;
97f8aefb 2594 }
d8a33ac4
SH		 2595 old_features = dev->features;
2596
1da177e4
LT		 2597 switch (ethcmd) {
2598 case ETHTOOL_GSET:
2599 rc = ethtool_get_settings(dev, useraddr);
2600 break;
2601 case ETHTOOL_SSET:
2602 rc = ethtool_set_settings(dev, useraddr);
2603 break;
2604 case ETHTOOL_GDRVINFO:
2605 rc = ethtool_get_drvinfo(dev, useraddr);
1da177e4
LT		 2606 break;
2607 case ETHTOOL_GREGS:
2608 rc = ethtool_get_regs(dev, useraddr);
2609 break;
2610 case ETHTOOL_GWOL:
2611 rc = ethtool_get_wol(dev, useraddr);
2612 break;
2613 case ETHTOOL_SWOL:
2614 rc = ethtool_set_wol(dev, useraddr);
2615 break;
2616 case ETHTOOL_GMSGLVL:
13c99b24
JG		 2617 rc = ethtool_get_value(dev, useraddr, ethcmd,
2618 dev->ethtool_ops->get_msglevel);
1da177e4
LT		 2619 break;
2620 case ETHTOOL_SMSGLVL:
13c99b24
JG		 2621 rc = ethtool_set_value_void(dev, useraddr,
2622 dev->ethtool_ops->set_msglevel);
1da177e4 2623 break;
80f12ecc
YM		 2624 case ETHTOOL_GEEE:
2625 rc = ethtool_get_eee(dev, useraddr);
2626 break;
2627 case ETHTOOL_SEEE:
2628 rc = ethtool_set_eee(dev, useraddr);
2629 break;
1da177e4
LT		 2630 case ETHTOOL_NWAY_RST:
2631 rc = ethtool_nway_reset(dev);
2632 break;
2633 case ETHTOOL_GLINK:
e596e6e4 2634 rc = ethtool_get_link(dev, useraddr);
1da177e4
LT		 2635 break;
2636 case ETHTOOL_GEEPROM:
2637 rc = ethtool_get_eeprom(dev, useraddr);
2638 break;
2639 case ETHTOOL_SEEPROM:
2640 rc = ethtool_set_eeprom(dev, useraddr);
2641 break;
2642 case ETHTOOL_GCOALESCE:
2643 rc = ethtool_get_coalesce(dev, useraddr);
2644 break;
2645 case ETHTOOL_SCOALESCE:
2646 rc = ethtool_set_coalesce(dev, useraddr);
2647 break;
2648 case ETHTOOL_GRINGPARAM:
2649 rc = ethtool_get_ringparam(dev, useraddr);
2650 break;
2651 case ETHTOOL_SRINGPARAM:
2652 rc = ethtool_set_ringparam(dev, useraddr);
2653 break;
2654 case ETHTOOL_GPAUSEPARAM:
2655 rc = ethtool_get_pauseparam(dev, useraddr);
2656 break;
2657 case ETHTOOL_SPAUSEPARAM:
2658 rc = ethtool_set_pauseparam(dev, useraddr);
2659 break;
1da177e4
LT		 2660 case ETHTOOL_TEST:
2661 rc = ethtool_self_test(dev, useraddr);
2662 break;
2663 case ETHTOOL_GSTRINGS:
2664 rc = ethtool_get_strings(dev, useraddr);
2665 break;
2666 case ETHTOOL_PHYS_ID:
2667 rc = ethtool_phys_id(dev, useraddr);
2668 break;
2669 case ETHTOOL_GSTATS:
2670 rc = ethtool_get_stats(dev, useraddr);
2671 break;
a6f9a705
JW		 2672 case ETHTOOL_GPERMADDR:
2673 rc = ethtool_get_perm_addr(dev, useraddr);
2674 break;
3ae7c0b2 2675 case ETHTOOL_GFLAGS:
13c99b24 2676 rc = ethtool_get_value(dev, useraddr, ethcmd,
bc5787c6 2677 __ethtool_get_flags);
3ae7c0b2
JG		 2678 break;
2679 case ETHTOOL_SFLAGS:
da8ac86c 2680 rc = ethtool_set_value(dev, useraddr, __ethtool_set_flags);
3ae7c0b2 2681 break;
339bf024 2682 case ETHTOOL_GPFLAGS:
13c99b24
JG		 2683 rc = ethtool_get_value(dev, useraddr, ethcmd,
2684 dev->ethtool_ops->get_priv_flags);
339bf024
JG		 2685 break;
2686 case ETHTOOL_SPFLAGS:
13c99b24
JG		 2687 rc = ethtool_set_value(dev, useraddr,
2688 dev->ethtool_ops->set_priv_flags);
339bf024 2689 break;
0853ad66 2690 case ETHTOOL_GRXFH:
59089d8d
SB		 2691 case ETHTOOL_GRXRINGS:
2692 case ETHTOOL_GRXCLSRLCNT:
2693 case ETHTOOL_GRXCLSRULE:
2694 case ETHTOOL_GRXCLSRLALL:
bf988435 2695 rc = ethtool_get_rxnfc(dev, ethcmd, useraddr);
0853ad66
SB		 2696 break;
2697 case ETHTOOL_SRXFH:
59089d8d
SB		 2698 case ETHTOOL_SRXCLSRLDEL:
2699 case ETHTOOL_SRXCLSRLINS:
bf988435 2700 rc = ethtool_set_rxnfc(dev, ethcmd, useraddr);
0853ad66 2701 break;
05c6a8d7
AK		 2702 case ETHTOOL_FLASHDEV:
2703 rc = ethtool_flash_device(dev, useraddr);
2704 break;
d73d3a8c
BH		 2705 case ETHTOOL_RESET:
2706 rc = ethtool_reset(dev, useraddr);
2707 break;
723b2f57
JG		 2708 case ETHTOOL_GSSET_INFO:
2709 rc = ethtool_get_sset_info(dev, useraddr);
2710 break;
a5b6ee29
BH		 2711 case ETHTOOL_GRXFHINDIR:
2712 rc = ethtool_get_rxfh_indir(dev, useraddr);
2713 break;
2714 case ETHTOOL_SRXFHINDIR:
2715 rc = ethtool_set_rxfh_indir(dev, useraddr);
2716 break;
3de0b592
VD		 2717 case ETHTOOL_GRSSH:
2718 rc = ethtool_get_rxfh(dev, useraddr);
2719 break;
2720 case ETHTOOL_SRSSH:
2721 rc = ethtool_set_rxfh(dev, useraddr);
2722 break;
5455c699
MM		 2723 case ETHTOOL_GFEATURES:
2724 rc = ethtool_get_features(dev, useraddr);
2725 break;
2726 case ETHTOOL_SFEATURES:
2727 rc = ethtool_set_features(dev, useraddr);
2728 break;
0a417704 2729 case ETHTOOL_GTXCSUM:
e83d360d 2730 case ETHTOOL_GRXCSUM:
0a417704
MM		 2731 case ETHTOOL_GSG:
2732 case ETHTOOL_GTSO:
0a417704
MM		 2733 case ETHTOOL_GGSO:
2734 case ETHTOOL_GGRO:
2735 rc = ethtool_get_one_feature(dev, useraddr, ethcmd);
2736 break;
2737 case ETHTOOL_STXCSUM:
e83d360d 2738 case ETHTOOL_SRXCSUM:
0a417704
MM		 2739 case ETHTOOL_SSG:
2740 case ETHTOOL_STSO:
0a417704
MM		 2741 case ETHTOOL_SGSO:
2742 case ETHTOOL_SGRO:
2743 rc = ethtool_set_one_feature(dev, useraddr, ethcmd);
2744 break;
8b5933c3 2745 case ETHTOOL_GCHANNELS:
2746 rc = ethtool_get_channels(dev, useraddr);
2747 break;
2748 case ETHTOOL_SCHANNELS:
2749 rc = ethtool_set_channels(dev, useraddr);
2750 break;
29dd54b7
AC		 2751 case ETHTOOL_SET_DUMP:
2752 rc = ethtool_set_dump(dev, useraddr);
2753 break;
2754 case ETHTOOL_GET_DUMP_FLAG:
2755 rc = ethtool_get_dump_flag(dev, useraddr);
2756 break;
2757 case ETHTOOL_GET_DUMP_DATA:
2758 rc = ethtool_get_dump_data(dev, useraddr);
2759 break;
c8f3a8c3
RC		 2760 case ETHTOOL_GET_TS_INFO:
2761 rc = ethtool_get_ts_info(dev, useraddr);
2762 break;
41c3cb6d
SH		 2763 case ETHTOOL_GMODULEINFO:
2764 rc = ethtool_get_module_info(dev, useraddr);
2765 break;
2766 case ETHTOOL_GMODULEEEPROM:
2767 rc = ethtool_get_module_eeprom(dev, useraddr);
2768 break;
f0db9b07
GV		 2769 case ETHTOOL_GTUNABLE:
2770 rc = ethtool_get_tunable(dev, useraddr);
2771 break;
2772 case ETHTOOL_STUNABLE:
2773 rc = ethtool_set_tunable(dev, useraddr);
2774 break;
f3a40945
AL		 2775 case ETHTOOL_GPHYSTATS:
2776 rc = ethtool_get_phy_stats(dev, useraddr);
2777 break;
ac2c7ad0 2778 case ETHTOOL_PERQUEUE:
58f5bbe3 2779 rc = ethtool_set_per_queue(dev, useraddr, sub_cmd);
ac2c7ad0 2780 break;
3f1ac7a7
DD		 2781 case ETHTOOL_GLINKSETTINGS:
2782 rc = ethtool_get_link_ksettings(dev, useraddr);
2783 break;
2784 case ETHTOOL_SLINKSETTINGS:
2785 rc = ethtool_set_link_ksettings(dev, useraddr);
2786 break;
968ad9da
RL		 2787 case ETHTOOL_PHY_GTUNABLE:
2788 rc = get_phy_tunable(dev, useraddr);
2789 break;
2790 case ETHTOOL_PHY_STUNABLE:
2791 rc = set_phy_tunable(dev, useraddr);
2792 break;
1a5f3da2
VSR		 2793 case ETHTOOL_GFECPARAM:
2794 rc = ethtool_get_fecparam(dev, useraddr);
2795 break;
2796 case ETHTOOL_SFECPARAM:
2797 rc = ethtool_set_fecparam(dev, useraddr);
2798 break;
1da177e4 2799 default:
61a44b9c 2800 rc = -EOPNOTSUPP;
1da177e4 2801 }
4ec93edb 2802
e71a4783 2803 if (dev->ethtool_ops->complete)
1da177e4 2804 dev->ethtool_ops->complete(dev);
d8a33ac4
SH		 2805
2806 if (old_features != dev->features)
2807 netdev_features_change(dev);
2808
1da177e4 2809 return rc;
1da177e4 2810}
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