2 * net/core/ethtool.c - Ethtool ioctl handler
3 * Copyright (c) 2003 Matthew Wilcox <matthew@wil.cx>
5 * This file is where we call all the ethtool_ops commands to get
6 * the information ethtool needs.
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.
14 #include <linux/module.h>
15 #include <linux/types.h>
16 #include <linux/capability.h>
17 #include <linux/errno.h>
18 #include <linux/ethtool.h>
19 #include <linux/netdevice.h>
20 #include <linux/net_tstamp.h>
21 #include <linux/phy.h>
22 #include <linux/bitops.h>
23 #include <linux/uaccess.h>
24 #include <linux/vmalloc.h>
25 #include <linux/slab.h>
26 #include <linux/rtnetlink.h>
27 #include <linux/sched.h>
28 #include <linux/net.h>
31 * Some useful ethtool_ops methods that're device independent.
32 * If we find that all drivers want to do the same thing here,
33 * we can turn these into dev_() function calls.
36 u32 ethtool_op_get_link(struct net_device *dev)
38 return netif_carrier_ok(dev) ? 1 : 0;
40 EXPORT_SYMBOL(ethtool_op_get_link);
42 int ethtool_op_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info)
44 info->so_timestamping =
45 SOF_TIMESTAMPING_TX_SOFTWARE |
46 SOF_TIMESTAMPING_RX_SOFTWARE |
47 SOF_TIMESTAMPING_SOFTWARE;
51 EXPORT_SYMBOL(ethtool_op_get_ts_info);
53 /* Handlers for each ethtool command */
55 #define ETHTOOL_DEV_FEATURE_WORDS ((NETDEV_FEATURE_COUNT + 31) / 32)
57 static const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN] = {
58 [NETIF_F_SG_BIT] = "tx-scatter-gather",
59 [NETIF_F_IP_CSUM_BIT] = "tx-checksum-ipv4",
60 [NETIF_F_HW_CSUM_BIT] = "tx-checksum-ip-generic",
61 [NETIF_F_IPV6_CSUM_BIT] = "tx-checksum-ipv6",
62 [NETIF_F_HIGHDMA_BIT] = "highdma",
63 [NETIF_F_FRAGLIST_BIT] = "tx-scatter-gather-fraglist",
64 [NETIF_F_HW_VLAN_CTAG_TX_BIT] = "tx-vlan-hw-insert",
66 [NETIF_F_HW_VLAN_CTAG_RX_BIT] = "rx-vlan-hw-parse",
67 [NETIF_F_HW_VLAN_CTAG_FILTER_BIT] = "rx-vlan-filter",
68 [NETIF_F_HW_VLAN_STAG_TX_BIT] = "tx-vlan-stag-hw-insert",
69 [NETIF_F_HW_VLAN_STAG_RX_BIT] = "rx-vlan-stag-hw-parse",
70 [NETIF_F_HW_VLAN_STAG_FILTER_BIT] = "rx-vlan-stag-filter",
71 [NETIF_F_VLAN_CHALLENGED_BIT] = "vlan-challenged",
72 [NETIF_F_GSO_BIT] = "tx-generic-segmentation",
73 [NETIF_F_LLTX_BIT] = "tx-lockless",
74 [NETIF_F_NETNS_LOCAL_BIT] = "netns-local",
75 [NETIF_F_GRO_BIT] = "rx-gro",
76 [NETIF_F_LRO_BIT] = "rx-lro",
78 [NETIF_F_TSO_BIT] = "tx-tcp-segmentation",
79 [NETIF_F_UFO_BIT] = "tx-udp-fragmentation",
80 [NETIF_F_GSO_ROBUST_BIT] = "tx-gso-robust",
81 [NETIF_F_TSO_ECN_BIT] = "tx-tcp-ecn-segmentation",
82 [NETIF_F_TSO_MANGLEID_BIT] = "tx-tcp-mangleid-segmentation",
83 [NETIF_F_TSO6_BIT] = "tx-tcp6-segmentation",
84 [NETIF_F_FSO_BIT] = "tx-fcoe-segmentation",
85 [NETIF_F_GSO_GRE_BIT] = "tx-gre-segmentation",
86 [NETIF_F_GSO_GRE_CSUM_BIT] = "tx-gre-csum-segmentation",
87 [NETIF_F_GSO_IPXIP4_BIT] = "tx-ipxip4-segmentation",
88 [NETIF_F_GSO_IPXIP6_BIT] = "tx-ipxip6-segmentation",
89 [NETIF_F_GSO_UDP_TUNNEL_BIT] = "tx-udp_tnl-segmentation",
90 [NETIF_F_GSO_UDP_TUNNEL_CSUM_BIT] = "tx-udp_tnl-csum-segmentation",
91 [NETIF_F_GSO_PARTIAL_BIT] = "tx-gso-partial",
92 [NETIF_F_GSO_SCTP_BIT] = "tx-sctp-segmentation",
94 [NETIF_F_FCOE_CRC_BIT] = "tx-checksum-fcoe-crc",
95 [NETIF_F_SCTP_CRC_BIT] = "tx-checksum-sctp",
96 [NETIF_F_FCOE_MTU_BIT] = "fcoe-mtu",
97 [NETIF_F_NTUPLE_BIT] = "rx-ntuple-filter",
98 [NETIF_F_RXHASH_BIT] = "rx-hashing",
99 [NETIF_F_RXCSUM_BIT] = "rx-checksum",
100 [NETIF_F_NOCACHE_COPY_BIT] = "tx-nocache-copy",
101 [NETIF_F_LOOPBACK_BIT] = "loopback",
102 [NETIF_F_RXFCS_BIT] = "rx-fcs",
103 [NETIF_F_RXALL_BIT] = "rx-all",
104 [NETIF_F_HW_L2FW_DOFFLOAD_BIT] = "l2-fwd-offload",
105 [NETIF_F_BUSY_POLL_BIT] = "busy-poll",
106 [NETIF_F_HW_TC_BIT] = "hw-tc-offload",
110 rss_hash_func_strings[ETH_RSS_HASH_FUNCS_COUNT][ETH_GSTRING_LEN] = {
111 [ETH_RSS_HASH_TOP_BIT] = "toeplitz",
112 [ETH_RSS_HASH_XOR_BIT] = "xor",
116 tunable_strings[__ETHTOOL_TUNABLE_COUNT][ETH_GSTRING_LEN] = {
117 [ETHTOOL_ID_UNSPEC] = "Unspec",
118 [ETHTOOL_RX_COPYBREAK] = "rx-copybreak",
119 [ETHTOOL_TX_COPYBREAK] = "tx-copybreak",
122 static int ethtool_get_features(struct net_device *dev, void __user *useraddr)
124 struct ethtool_gfeatures cmd = {
125 .cmd = ETHTOOL_GFEATURES,
126 .size = ETHTOOL_DEV_FEATURE_WORDS,
128 struct ethtool_get_features_block features[ETHTOOL_DEV_FEATURE_WORDS];
129 u32 __user *sizeaddr;
133 /* in case feature bits run out again */
134 BUILD_BUG_ON(ETHTOOL_DEV_FEATURE_WORDS * sizeof(u32) > sizeof(netdev_features_t));
136 for (i = 0; i < ETHTOOL_DEV_FEATURE_WORDS; ++i) {
137 features[i].available = (u32)(dev->hw_features >> (32 * i));
138 features[i].requested = (u32)(dev->wanted_features >> (32 * i));
139 features[i].active = (u32)(dev->features >> (32 * i));
140 features[i].never_changed =
141 (u32)(NETIF_F_NEVER_CHANGE >> (32 * i));
144 sizeaddr = useraddr + offsetof(struct ethtool_gfeatures, size);
145 if (get_user(copy_size, sizeaddr))
148 if (copy_size > ETHTOOL_DEV_FEATURE_WORDS)
149 copy_size = ETHTOOL_DEV_FEATURE_WORDS;
151 if (copy_to_user(useraddr, &cmd, sizeof(cmd)))
153 useraddr += sizeof(cmd);
154 if (copy_to_user(useraddr, features, copy_size * sizeof(*features)))
160 static int ethtool_set_features(struct net_device *dev, void __user *useraddr)
162 struct ethtool_sfeatures cmd;
163 struct ethtool_set_features_block features[ETHTOOL_DEV_FEATURE_WORDS];
164 netdev_features_t wanted = 0, valid = 0;
167 if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
169 useraddr += sizeof(cmd);
171 if (cmd.size != ETHTOOL_DEV_FEATURE_WORDS)
174 if (copy_from_user(features, useraddr, sizeof(features)))
177 for (i = 0; i < ETHTOOL_DEV_FEATURE_WORDS; ++i) {
178 valid |= (netdev_features_t)features[i].valid << (32 * i);
179 wanted |= (netdev_features_t)features[i].requested << (32 * i);
182 if (valid & ~NETIF_F_ETHTOOL_BITS)
185 if (valid & ~dev->hw_features) {
186 valid &= dev->hw_features;
187 ret |= ETHTOOL_F_UNSUPPORTED;
190 dev->wanted_features &= ~valid;
191 dev->wanted_features |= wanted & valid;
192 __netdev_update_features(dev);
194 if ((dev->wanted_features ^ dev->features) & valid)
195 ret |= ETHTOOL_F_WISH;
200 static int phy_get_sset_count(struct phy_device *phydev)
204 if (phydev->drv->get_sset_count &&
205 phydev->drv->get_strings &&
206 phydev->drv->get_stats) {
207 mutex_lock(&phydev->lock);
208 ret = phydev->drv->get_sset_count(phydev);
209 mutex_unlock(&phydev->lock);
217 static int __ethtool_get_sset_count(struct net_device *dev, int sset)
219 const struct ethtool_ops *ops = dev->ethtool_ops;
221 if (sset == ETH_SS_FEATURES)
222 return ARRAY_SIZE(netdev_features_strings);
224 if (sset == ETH_SS_RSS_HASH_FUNCS)
225 return ARRAY_SIZE(rss_hash_func_strings);
227 if (sset == ETH_SS_TUNABLES)
228 return ARRAY_SIZE(tunable_strings);
230 if (sset == ETH_SS_PHY_STATS) {
232 return phy_get_sset_count(dev->phydev);
237 if (ops->get_sset_count && ops->get_strings)
238 return ops->get_sset_count(dev, sset);
243 static void __ethtool_get_strings(struct net_device *dev,
244 u32 stringset, u8 *data)
246 const struct ethtool_ops *ops = dev->ethtool_ops;
248 if (stringset == ETH_SS_FEATURES)
249 memcpy(data, netdev_features_strings,
250 sizeof(netdev_features_strings));
251 else if (stringset == ETH_SS_RSS_HASH_FUNCS)
252 memcpy(data, rss_hash_func_strings,
253 sizeof(rss_hash_func_strings));
254 else if (stringset == ETH_SS_TUNABLES)
255 memcpy(data, tunable_strings, sizeof(tunable_strings));
256 else if (stringset == ETH_SS_PHY_STATS) {
257 struct phy_device *phydev = dev->phydev;
260 mutex_lock(&phydev->lock);
261 phydev->drv->get_strings(phydev, data);
262 mutex_unlock(&phydev->lock);
267 /* ops->get_strings is valid because checked earlier */
268 ops->get_strings(dev, stringset, data);
271 static netdev_features_t ethtool_get_feature_mask(u32 eth_cmd)
273 /* feature masks of legacy discrete ethtool ops */
276 case ETHTOOL_GTXCSUM:
277 case ETHTOOL_STXCSUM:
278 return NETIF_F_CSUM_MASK | NETIF_F_SCTP_CRC;
279 case ETHTOOL_GRXCSUM:
280 case ETHTOOL_SRXCSUM:
281 return NETIF_F_RXCSUM;
287 return NETIF_F_ALL_TSO;
302 static int ethtool_get_one_feature(struct net_device *dev,
303 char __user *useraddr, u32 ethcmd)
305 netdev_features_t mask = ethtool_get_feature_mask(ethcmd);
306 struct ethtool_value edata = {
308 .data = !!(dev->features & mask),
311 if (copy_to_user(useraddr, &edata, sizeof(edata)))
316 static int ethtool_set_one_feature(struct net_device *dev,
317 void __user *useraddr, u32 ethcmd)
319 struct ethtool_value edata;
320 netdev_features_t mask;
322 if (copy_from_user(&edata, useraddr, sizeof(edata)))
325 mask = ethtool_get_feature_mask(ethcmd);
326 mask &= dev->hw_features;
331 dev->wanted_features |= mask;
333 dev->wanted_features &= ~mask;
335 __netdev_update_features(dev);
340 #define ETH_ALL_FLAGS (ETH_FLAG_LRO | ETH_FLAG_RXVLAN | ETH_FLAG_TXVLAN | \
341 ETH_FLAG_NTUPLE | ETH_FLAG_RXHASH)
342 #define ETH_ALL_FEATURES (NETIF_F_LRO | NETIF_F_HW_VLAN_CTAG_RX | \
343 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_NTUPLE | \
346 static u32 __ethtool_get_flags(struct net_device *dev)
350 if (dev->features & NETIF_F_LRO)
351 flags |= ETH_FLAG_LRO;
352 if (dev->features & NETIF_F_HW_VLAN_CTAG_RX)
353 flags |= ETH_FLAG_RXVLAN;
354 if (dev->features & NETIF_F_HW_VLAN_CTAG_TX)
355 flags |= ETH_FLAG_TXVLAN;
356 if (dev->features & NETIF_F_NTUPLE)
357 flags |= ETH_FLAG_NTUPLE;
358 if (dev->features & NETIF_F_RXHASH)
359 flags |= ETH_FLAG_RXHASH;
364 static int __ethtool_set_flags(struct net_device *dev, u32 data)
366 netdev_features_t features = 0, changed;
368 if (data & ~ETH_ALL_FLAGS)
371 if (data & ETH_FLAG_LRO)
372 features |= NETIF_F_LRO;
373 if (data & ETH_FLAG_RXVLAN)
374 features |= NETIF_F_HW_VLAN_CTAG_RX;
375 if (data & ETH_FLAG_TXVLAN)
376 features |= NETIF_F_HW_VLAN_CTAG_TX;
377 if (data & ETH_FLAG_NTUPLE)
378 features |= NETIF_F_NTUPLE;
379 if (data & ETH_FLAG_RXHASH)
380 features |= NETIF_F_RXHASH;
382 /* allow changing only bits set in hw_features */
383 changed = (features ^ dev->features) & ETH_ALL_FEATURES;
384 if (changed & ~dev->hw_features)
385 return (changed & dev->hw_features) ? -EINVAL : -EOPNOTSUPP;
387 dev->wanted_features =
388 (dev->wanted_features & ~changed) | (features & changed);
390 __netdev_update_features(dev);
395 void ethtool_convert_legacy_u32_to_link_mode(unsigned long *dst,
398 bitmap_zero(dst, __ETHTOOL_LINK_MODE_MASK_NBITS);
401 EXPORT_SYMBOL(ethtool_convert_legacy_u32_to_link_mode);
403 /* return false if src had higher bits set. lower bits always updated. */
404 bool ethtool_convert_link_mode_to_legacy_u32(u32 *legacy_u32,
405 const unsigned long *src)
409 /* TODO: following test will soon always be true */
410 if (__ETHTOOL_LINK_MODE_MASK_NBITS > 32) {
411 __ETHTOOL_DECLARE_LINK_MODE_MASK(ext);
413 bitmap_zero(ext, __ETHTOOL_LINK_MODE_MASK_NBITS);
414 bitmap_fill(ext, 32);
415 bitmap_complement(ext, ext, __ETHTOOL_LINK_MODE_MASK_NBITS);
416 if (bitmap_intersects(ext, src,
417 __ETHTOOL_LINK_MODE_MASK_NBITS)) {
418 /* src mask goes beyond bit 31 */
422 *legacy_u32 = src[0];
425 EXPORT_SYMBOL(ethtool_convert_link_mode_to_legacy_u32);
427 /* return false if legacy contained non-0 deprecated fields
428 * transceiver/maxtxpkt/maxrxpkt. rest of ksettings always updated
431 convert_legacy_settings_to_link_ksettings(
432 struct ethtool_link_ksettings *link_ksettings,
433 const struct ethtool_cmd *legacy_settings)
437 memset(link_ksettings, 0, sizeof(*link_ksettings));
439 /* This is used to tell users that driver is still using these
440 * deprecated legacy fields, and they should not use
441 * %ETHTOOL_GLINKSETTINGS/%ETHTOOL_SLINKSETTINGS
443 if (legacy_settings->transceiver ||
444 legacy_settings->maxtxpkt ||
445 legacy_settings->maxrxpkt)
448 ethtool_convert_legacy_u32_to_link_mode(
449 link_ksettings->link_modes.supported,
450 legacy_settings->supported);
451 ethtool_convert_legacy_u32_to_link_mode(
452 link_ksettings->link_modes.advertising,
453 legacy_settings->advertising);
454 ethtool_convert_legacy_u32_to_link_mode(
455 link_ksettings->link_modes.lp_advertising,
456 legacy_settings->lp_advertising);
457 link_ksettings->base.speed
458 = ethtool_cmd_speed(legacy_settings);
459 link_ksettings->base.duplex
460 = legacy_settings->duplex;
461 link_ksettings->base.port
462 = legacy_settings->port;
463 link_ksettings->base.phy_address
464 = legacy_settings->phy_address;
465 link_ksettings->base.autoneg
466 = legacy_settings->autoneg;
467 link_ksettings->base.mdio_support
468 = legacy_settings->mdio_support;
469 link_ksettings->base.eth_tp_mdix
470 = legacy_settings->eth_tp_mdix;
471 link_ksettings->base.eth_tp_mdix_ctrl
472 = legacy_settings->eth_tp_mdix_ctrl;
476 /* return false if ksettings link modes had higher bits
477 * set. legacy_settings always updated (best effort)
480 convert_link_ksettings_to_legacy_settings(
481 struct ethtool_cmd *legacy_settings,
482 const struct ethtool_link_ksettings *link_ksettings)
486 memset(legacy_settings, 0, sizeof(*legacy_settings));
487 /* this also clears the deprecated fields in legacy structure:
493 retval &= ethtool_convert_link_mode_to_legacy_u32(
494 &legacy_settings->supported,
495 link_ksettings->link_modes.supported);
496 retval &= ethtool_convert_link_mode_to_legacy_u32(
497 &legacy_settings->advertising,
498 link_ksettings->link_modes.advertising);
499 retval &= ethtool_convert_link_mode_to_legacy_u32(
500 &legacy_settings->lp_advertising,
501 link_ksettings->link_modes.lp_advertising);
502 ethtool_cmd_speed_set(legacy_settings, link_ksettings->base.speed);
503 legacy_settings->duplex
504 = link_ksettings->base.duplex;
505 legacy_settings->port
506 = link_ksettings->base.port;
507 legacy_settings->phy_address
508 = link_ksettings->base.phy_address;
509 legacy_settings->autoneg
510 = link_ksettings->base.autoneg;
511 legacy_settings->mdio_support
512 = link_ksettings->base.mdio_support;
513 legacy_settings->eth_tp_mdix
514 = link_ksettings->base.eth_tp_mdix;
515 legacy_settings->eth_tp_mdix_ctrl
516 = link_ksettings->base.eth_tp_mdix_ctrl;
517 legacy_settings->transceiver
518 = link_ksettings->base.transceiver;
522 /* number of 32-bit words to store the user's link mode bitmaps */
523 #define __ETHTOOL_LINK_MODE_MASK_NU32 \
524 DIV_ROUND_UP(__ETHTOOL_LINK_MODE_MASK_NBITS, 32)
526 /* layout of the struct passed from/to userland */
527 struct ethtool_link_usettings {
528 struct ethtool_link_settings base;
530 __u32 supported[__ETHTOOL_LINK_MODE_MASK_NU32];
531 __u32 advertising[__ETHTOOL_LINK_MODE_MASK_NU32];
532 __u32 lp_advertising[__ETHTOOL_LINK_MODE_MASK_NU32];
536 /* Internal kernel helper to query a device ethtool_link_settings.
538 * Backward compatibility note: for compatibility with legacy drivers
539 * that implement only the ethtool_cmd API, this has to work with both
540 * drivers implementing get_link_ksettings API and drivers
541 * implementing get_settings API. When drivers implement get_settings
542 * and report ethtool_cmd deprecated fields
543 * (transceiver/maxrxpkt/maxtxpkt), these fields are silently ignored
544 * because the resulting struct ethtool_link_settings does not report them.
546 int __ethtool_get_link_ksettings(struct net_device *dev,
547 struct ethtool_link_ksettings *link_ksettings)
550 struct ethtool_cmd cmd;
554 if (dev->ethtool_ops->get_link_ksettings) {
555 memset(link_ksettings, 0, sizeof(*link_ksettings));
556 return dev->ethtool_ops->get_link_ksettings(dev,
560 /* driver doesn't support %ethtool_link_ksettings API. revert to
561 * legacy %ethtool_cmd API, unless it's not supported either.
562 * TODO: remove when ethtool_ops::get_settings disappears internally
564 if (!dev->ethtool_ops->get_settings)
567 memset(&cmd, 0, sizeof(cmd));
568 cmd.cmd = ETHTOOL_GSET;
569 err = dev->ethtool_ops->get_settings(dev, &cmd);
573 /* we ignore deprecated fields transceiver/maxrxpkt/maxtxpkt
575 convert_legacy_settings_to_link_ksettings(link_ksettings, &cmd);
578 EXPORT_SYMBOL(__ethtool_get_link_ksettings);
580 /* convert ethtool_link_usettings in user space to a kernel internal
581 * ethtool_link_ksettings. return 0 on success, errno on error.
583 static int load_link_ksettings_from_user(struct ethtool_link_ksettings *to,
584 const void __user *from)
586 struct ethtool_link_usettings link_usettings;
588 if (copy_from_user(&link_usettings, from, sizeof(link_usettings)))
591 memcpy(&to->base, &link_usettings.base, sizeof(to->base));
592 bitmap_from_u32array(to->link_modes.supported,
593 __ETHTOOL_LINK_MODE_MASK_NBITS,
594 link_usettings.link_modes.supported,
595 __ETHTOOL_LINK_MODE_MASK_NU32);
596 bitmap_from_u32array(to->link_modes.advertising,
597 __ETHTOOL_LINK_MODE_MASK_NBITS,
598 link_usettings.link_modes.advertising,
599 __ETHTOOL_LINK_MODE_MASK_NU32);
600 bitmap_from_u32array(to->link_modes.lp_advertising,
601 __ETHTOOL_LINK_MODE_MASK_NBITS,
602 link_usettings.link_modes.lp_advertising,
603 __ETHTOOL_LINK_MODE_MASK_NU32);
608 /* convert a kernel internal ethtool_link_ksettings to
609 * ethtool_link_usettings in user space. return 0 on success, errno on
613 store_link_ksettings_for_user(void __user *to,
614 const struct ethtool_link_ksettings *from)
616 struct ethtool_link_usettings link_usettings;
618 memcpy(&link_usettings.base, &from->base, sizeof(link_usettings));
619 bitmap_to_u32array(link_usettings.link_modes.supported,
620 __ETHTOOL_LINK_MODE_MASK_NU32,
621 from->link_modes.supported,
622 __ETHTOOL_LINK_MODE_MASK_NBITS);
623 bitmap_to_u32array(link_usettings.link_modes.advertising,
624 __ETHTOOL_LINK_MODE_MASK_NU32,
625 from->link_modes.advertising,
626 __ETHTOOL_LINK_MODE_MASK_NBITS);
627 bitmap_to_u32array(link_usettings.link_modes.lp_advertising,
628 __ETHTOOL_LINK_MODE_MASK_NU32,
629 from->link_modes.lp_advertising,
630 __ETHTOOL_LINK_MODE_MASK_NBITS);
632 if (copy_to_user(to, &link_usettings, sizeof(link_usettings)))
638 /* Query device for its ethtool_link_settings.
640 * Backward compatibility note: this function must fail when driver
641 * does not implement ethtool::get_link_ksettings, even if legacy
642 * ethtool_ops::get_settings is implemented. This tells new versions
643 * of ethtool that they should use the legacy API %ETHTOOL_GSET for
644 * this driver, so that they can correctly access the ethtool_cmd
645 * deprecated fields (transceiver/maxrxpkt/maxtxpkt), until no driver
646 * implements ethtool_ops::get_settings anymore.
648 static int ethtool_get_link_ksettings(struct net_device *dev,
649 void __user *useraddr)
652 struct ethtool_link_ksettings link_ksettings;
656 if (!dev->ethtool_ops->get_link_ksettings)
659 /* handle bitmap nbits handshake */
660 if (copy_from_user(&link_ksettings.base, useraddr,
661 sizeof(link_ksettings.base)))
664 if (__ETHTOOL_LINK_MODE_MASK_NU32
665 != link_ksettings.base.link_mode_masks_nwords) {
666 /* wrong link mode nbits requested */
667 memset(&link_ksettings, 0, sizeof(link_ksettings));
668 link_ksettings.base.cmd = ETHTOOL_GLINKSETTINGS;
669 /* send back number of words required as negative val */
670 compiletime_assert(__ETHTOOL_LINK_MODE_MASK_NU32 <= S8_MAX,
671 "need too many bits for link modes!");
672 link_ksettings.base.link_mode_masks_nwords
673 = -((s8)__ETHTOOL_LINK_MODE_MASK_NU32);
675 /* copy the base fields back to user, not the link
678 if (copy_to_user(useraddr, &link_ksettings.base,
679 sizeof(link_ksettings.base)))
685 /* handshake successful: user/kernel agree on
686 * link_mode_masks_nwords
689 memset(&link_ksettings, 0, sizeof(link_ksettings));
690 err = dev->ethtool_ops->get_link_ksettings(dev, &link_ksettings);
694 /* make sure we tell the right values to user */
695 link_ksettings.base.cmd = ETHTOOL_GLINKSETTINGS;
696 link_ksettings.base.link_mode_masks_nwords
697 = __ETHTOOL_LINK_MODE_MASK_NU32;
699 return store_link_ksettings_for_user(useraddr, &link_ksettings);
702 /* Update device ethtool_link_settings.
704 * Backward compatibility note: this function must fail when driver
705 * does not implement ethtool::set_link_ksettings, even if legacy
706 * ethtool_ops::set_settings is implemented. This tells new versions
707 * of ethtool that they should use the legacy API %ETHTOOL_SSET for
708 * this driver, so that they can correctly update the ethtool_cmd
709 * deprecated fields (transceiver/maxrxpkt/maxtxpkt), until no driver
710 * implements ethtool_ops::get_settings anymore.
712 static int ethtool_set_link_ksettings(struct net_device *dev,
713 void __user *useraddr)
716 struct ethtool_link_ksettings link_ksettings;
720 if (!dev->ethtool_ops->set_link_ksettings)
723 /* make sure nbits field has expected value */
724 if (copy_from_user(&link_ksettings.base, useraddr,
725 sizeof(link_ksettings.base)))
728 if (__ETHTOOL_LINK_MODE_MASK_NU32
729 != link_ksettings.base.link_mode_masks_nwords)
732 /* copy the whole structure, now that we know it has expected
735 err = load_link_ksettings_from_user(&link_ksettings, useraddr);
739 /* re-check nwords field, just in case */
740 if (__ETHTOOL_LINK_MODE_MASK_NU32
741 != link_ksettings.base.link_mode_masks_nwords)
744 return dev->ethtool_ops->set_link_ksettings(dev, &link_ksettings);
747 /* Query device for its ethtool_cmd settings.
749 * Backward compatibility note: for compatibility with legacy ethtool,
750 * this has to work with both drivers implementing get_link_ksettings
751 * API and drivers implementing get_settings API. When drivers
752 * implement get_link_ksettings and report higher link mode bits, a
753 * kernel warning is logged once (with name of 1st driver/device) to
754 * recommend user to upgrade ethtool, but the command is successful
755 * (only the lower link mode bits reported back to user).
757 static int ethtool_get_settings(struct net_device *dev, void __user *useraddr)
759 struct ethtool_cmd cmd;
763 if (dev->ethtool_ops->get_link_ksettings) {
764 /* First, use link_ksettings API if it is supported */
766 struct ethtool_link_ksettings link_ksettings;
768 memset(&link_ksettings, 0, sizeof(link_ksettings));
769 err = dev->ethtool_ops->get_link_ksettings(dev,
773 convert_link_ksettings_to_legacy_settings(&cmd,
776 /* send a sensible cmd tag back to user */
777 cmd.cmd = ETHTOOL_GSET;
779 /* driver doesn't support %ethtool_link_ksettings
780 * API. revert to legacy %ethtool_cmd API, unless it's
781 * not supported either.
785 if (!dev->ethtool_ops->get_settings)
788 memset(&cmd, 0, sizeof(cmd));
789 cmd.cmd = ETHTOOL_GSET;
790 err = dev->ethtool_ops->get_settings(dev, &cmd);
795 if (copy_to_user(useraddr, &cmd, sizeof(cmd)))
801 /* Update device link settings with given ethtool_cmd.
803 * Backward compatibility note: for compatibility with legacy ethtool,
804 * this has to work with both drivers implementing set_link_ksettings
805 * API and drivers implementing set_settings API. When drivers
806 * implement set_link_ksettings and user's request updates deprecated
807 * ethtool_cmd fields (transceiver/maxrxpkt/maxtxpkt), a kernel
808 * warning is logged once (with name of 1st driver/device) to
809 * recommend user to upgrade ethtool, and the request is rejected.
811 static int ethtool_set_settings(struct net_device *dev, void __user *useraddr)
813 struct ethtool_cmd cmd;
817 if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
820 /* first, try new %ethtool_link_ksettings API. */
821 if (dev->ethtool_ops->set_link_ksettings) {
822 struct ethtool_link_ksettings link_ksettings;
824 if (!convert_legacy_settings_to_link_ksettings(&link_ksettings,
828 link_ksettings.base.cmd = ETHTOOL_SLINKSETTINGS;
829 link_ksettings.base.link_mode_masks_nwords
830 = __ETHTOOL_LINK_MODE_MASK_NU32;
831 return dev->ethtool_ops->set_link_ksettings(dev,
835 /* legacy %ethtool_cmd API */
837 /* TODO: return -EOPNOTSUPP when ethtool_ops::get_settings
838 * disappears internally
841 if (!dev->ethtool_ops->set_settings)
844 return dev->ethtool_ops->set_settings(dev, &cmd);
847 static noinline_for_stack int ethtool_get_drvinfo(struct net_device *dev,
848 void __user *useraddr)
850 struct ethtool_drvinfo info;
851 const struct ethtool_ops *ops = dev->ethtool_ops;
853 memset(&info, 0, sizeof(info));
854 info.cmd = ETHTOOL_GDRVINFO;
855 if (ops->get_drvinfo) {
856 ops->get_drvinfo(dev, &info);
857 } else if (dev->dev.parent && dev->dev.parent->driver) {
858 strlcpy(info.bus_info, dev_name(dev->dev.parent),
859 sizeof(info.bus_info));
860 strlcpy(info.driver, dev->dev.parent->driver->name,
861 sizeof(info.driver));
867 * this method of obtaining string set info is deprecated;
868 * Use ETHTOOL_GSSET_INFO instead.
870 if (ops->get_sset_count) {
873 rc = ops->get_sset_count(dev, ETH_SS_TEST);
875 info.testinfo_len = rc;
876 rc = ops->get_sset_count(dev, ETH_SS_STATS);
879 rc = ops->get_sset_count(dev, ETH_SS_PRIV_FLAGS);
881 info.n_priv_flags = rc;
883 if (ops->get_regs_len) {
884 int ret = ops->get_regs_len(dev);
887 info.regdump_len = ret;
890 if (ops->get_eeprom_len)
891 info.eedump_len = ops->get_eeprom_len(dev);
893 if (copy_to_user(useraddr, &info, sizeof(info)))
898 static noinline_for_stack int ethtool_get_sset_info(struct net_device *dev,
899 void __user *useraddr)
901 struct ethtool_sset_info info;
903 int i, idx = 0, n_bits = 0, ret, rc;
904 u32 *info_buf = NULL;
906 if (copy_from_user(&info, useraddr, sizeof(info)))
909 /* store copy of mask, because we zero struct later on */
910 sset_mask = info.sset_mask;
914 /* calculate size of return buffer */
915 n_bits = hweight64(sset_mask);
917 memset(&info, 0, sizeof(info));
918 info.cmd = ETHTOOL_GSSET_INFO;
920 info_buf = kzalloc(n_bits * sizeof(u32), GFP_USER);
925 * fill return buffer based on input bitmask and successful
926 * get_sset_count return
928 for (i = 0; i < 64; i++) {
929 if (!(sset_mask & (1ULL << i)))
932 rc = __ethtool_get_sset_count(dev, i);
934 info.sset_mask |= (1ULL << i);
935 info_buf[idx++] = rc;
940 if (copy_to_user(useraddr, &info, sizeof(info)))
943 useraddr += offsetof(struct ethtool_sset_info, data);
944 if (copy_to_user(useraddr, info_buf, idx * sizeof(u32)))
954 static noinline_for_stack int ethtool_set_rxnfc(struct net_device *dev,
955 u32 cmd, void __user *useraddr)
957 struct ethtool_rxnfc info;
958 size_t info_size = sizeof(info);
961 if (!dev->ethtool_ops->set_rxnfc)
964 /* struct ethtool_rxnfc was originally defined for
965 * ETHTOOL_{G,S}RXFH with only the cmd, flow_type and data
966 * members. User-space might still be using that
968 if (cmd == ETHTOOL_SRXFH)
969 info_size = (offsetof(struct ethtool_rxnfc, data) +
972 if (copy_from_user(&info, useraddr, info_size))
975 rc = dev->ethtool_ops->set_rxnfc(dev, &info);
979 if (cmd == ETHTOOL_SRXCLSRLINS &&
980 copy_to_user(useraddr, &info, info_size))
986 static noinline_for_stack int ethtool_get_rxnfc(struct net_device *dev,
987 u32 cmd, void __user *useraddr)
989 struct ethtool_rxnfc info;
990 size_t info_size = sizeof(info);
991 const struct ethtool_ops *ops = dev->ethtool_ops;
993 void *rule_buf = NULL;
998 /* struct ethtool_rxnfc was originally defined for
999 * ETHTOOL_{G,S}RXFH with only the cmd, flow_type and data
1000 * members. User-space might still be using that
1002 if (cmd == ETHTOOL_GRXFH)
1003 info_size = (offsetof(struct ethtool_rxnfc, data) +
1006 if (copy_from_user(&info, useraddr, info_size))
1009 if (info.cmd == ETHTOOL_GRXCLSRLALL) {
1010 if (info.rule_cnt > 0) {
1011 if (info.rule_cnt <= KMALLOC_MAX_SIZE / sizeof(u32))
1012 rule_buf = kzalloc(info.rule_cnt * sizeof(u32),
1019 ret = ops->get_rxnfc(dev, &info, rule_buf);
1024 if (copy_to_user(useraddr, &info, info_size))
1028 useraddr += offsetof(struct ethtool_rxnfc, rule_locs);
1029 if (copy_to_user(useraddr, rule_buf,
1030 info.rule_cnt * sizeof(u32)))
1041 static int ethtool_copy_validate_indir(u32 *indir, void __user *useraddr,
1042 struct ethtool_rxnfc *rx_rings,
1047 if (copy_from_user(indir, useraddr, size * sizeof(indir[0])))
1050 /* Validate ring indices */
1051 for (i = 0; i < size; i++)
1052 if (indir[i] >= rx_rings->data)
1058 u8 netdev_rss_key[NETDEV_RSS_KEY_LEN] __read_mostly;
1060 void netdev_rss_key_fill(void *buffer, size_t len)
1062 BUG_ON(len > sizeof(netdev_rss_key));
1063 net_get_random_once(netdev_rss_key, sizeof(netdev_rss_key));
1064 memcpy(buffer, netdev_rss_key, len);
1066 EXPORT_SYMBOL(netdev_rss_key_fill);
1068 static int ethtool_get_max_rxfh_channel(struct net_device *dev, u32 *max)
1070 u32 dev_size, current_max = 0;
1074 if (!dev->ethtool_ops->get_rxfh_indir_size ||
1075 !dev->ethtool_ops->get_rxfh)
1077 dev_size = dev->ethtool_ops->get_rxfh_indir_size(dev);
1081 indir = kcalloc(dev_size, sizeof(indir[0]), GFP_USER);
1085 ret = dev->ethtool_ops->get_rxfh(dev, indir, NULL, NULL);
1090 current_max = max(current_max, indir[dev_size]);
1099 static noinline_for_stack int ethtool_get_rxfh_indir(struct net_device *dev,
1100 void __user *useraddr)
1102 u32 user_size, dev_size;
1106 if (!dev->ethtool_ops->get_rxfh_indir_size ||
1107 !dev->ethtool_ops->get_rxfh)
1109 dev_size = dev->ethtool_ops->get_rxfh_indir_size(dev);
1113 if (copy_from_user(&user_size,
1114 useraddr + offsetof(struct ethtool_rxfh_indir, size),
1118 if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh_indir, size),
1119 &dev_size, sizeof(dev_size)))
1122 /* If the user buffer size is 0, this is just a query for the
1123 * device table size. Otherwise, if it's smaller than the
1124 * device table size it's an error.
1126 if (user_size < dev_size)
1127 return user_size == 0 ? 0 : -EINVAL;
1129 indir = kcalloc(dev_size, sizeof(indir[0]), GFP_USER);
1133 ret = dev->ethtool_ops->get_rxfh(dev, indir, NULL, NULL);
1137 if (copy_to_user(useraddr +
1138 offsetof(struct ethtool_rxfh_indir, ring_index[0]),
1139 indir, dev_size * sizeof(indir[0])))
1147 static noinline_for_stack int ethtool_set_rxfh_indir(struct net_device *dev,
1148 void __user *useraddr)
1150 struct ethtool_rxnfc rx_rings;
1151 u32 user_size, dev_size, i;
1153 const struct ethtool_ops *ops = dev->ethtool_ops;
1155 u32 ringidx_offset = offsetof(struct ethtool_rxfh_indir, ring_index[0]);
1157 if (!ops->get_rxfh_indir_size || !ops->set_rxfh ||
1161 dev_size = ops->get_rxfh_indir_size(dev);
1165 if (copy_from_user(&user_size,
1166 useraddr + offsetof(struct ethtool_rxfh_indir, size),
1170 if (user_size != 0 && user_size != dev_size)
1173 indir = kcalloc(dev_size, sizeof(indir[0]), GFP_USER);
1177 rx_rings.cmd = ETHTOOL_GRXRINGS;
1178 ret = ops->get_rxnfc(dev, &rx_rings, NULL);
1182 if (user_size == 0) {
1183 for (i = 0; i < dev_size; i++)
1184 indir[i] = ethtool_rxfh_indir_default(i, rx_rings.data);
1186 ret = ethtool_copy_validate_indir(indir,
1187 useraddr + ringidx_offset,
1194 ret = ops->set_rxfh(dev, indir, NULL, ETH_RSS_HASH_NO_CHANGE);
1198 /* indicate whether rxfh was set to default */
1200 dev->priv_flags &= ~IFF_RXFH_CONFIGURED;
1202 dev->priv_flags |= IFF_RXFH_CONFIGURED;
1209 static noinline_for_stack int ethtool_get_rxfh(struct net_device *dev,
1210 void __user *useraddr)
1213 const struct ethtool_ops *ops = dev->ethtool_ops;
1214 u32 user_indir_size, user_key_size;
1215 u32 dev_indir_size = 0, dev_key_size = 0;
1216 struct ethtool_rxfh rxfh;
1227 if (ops->get_rxfh_indir_size)
1228 dev_indir_size = ops->get_rxfh_indir_size(dev);
1229 if (ops->get_rxfh_key_size)
1230 dev_key_size = ops->get_rxfh_key_size(dev);
1232 if (copy_from_user(&rxfh, useraddr, sizeof(rxfh)))
1234 user_indir_size = rxfh.indir_size;
1235 user_key_size = rxfh.key_size;
1237 /* Check that reserved fields are 0 for now */
1238 if (rxfh.rss_context || rxfh.rsvd8[0] || rxfh.rsvd8[1] ||
1239 rxfh.rsvd8[2] || rxfh.rsvd32)
1242 rxfh.indir_size = dev_indir_size;
1243 rxfh.key_size = dev_key_size;
1244 if (copy_to_user(useraddr, &rxfh, sizeof(rxfh)))
1247 if ((user_indir_size && (user_indir_size != dev_indir_size)) ||
1248 (user_key_size && (user_key_size != dev_key_size)))
1251 indir_bytes = user_indir_size * sizeof(indir[0]);
1252 total_size = indir_bytes + user_key_size;
1253 rss_config = kzalloc(total_size, GFP_USER);
1257 if (user_indir_size)
1258 indir = (u32 *)rss_config;
1261 hkey = rss_config + indir_bytes;
1263 ret = dev->ethtool_ops->get_rxfh(dev, indir, hkey, &dev_hfunc);
1267 if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh, hfunc),
1268 &dev_hfunc, sizeof(rxfh.hfunc))) {
1270 } else if (copy_to_user(useraddr +
1271 offsetof(struct ethtool_rxfh, rss_config[0]),
1272 rss_config, total_size)) {
1281 static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev,
1282 void __user *useraddr)
1285 const struct ethtool_ops *ops = dev->ethtool_ops;
1286 struct ethtool_rxnfc rx_rings;
1287 struct ethtool_rxfh rxfh;
1288 u32 dev_indir_size = 0, dev_key_size = 0, i;
1289 u32 *indir = NULL, indir_bytes = 0;
1292 u32 rss_cfg_offset = offsetof(struct ethtool_rxfh, rss_config[0]);
1294 if (!ops->get_rxnfc || !ops->set_rxfh)
1297 if (ops->get_rxfh_indir_size)
1298 dev_indir_size = ops->get_rxfh_indir_size(dev);
1299 if (ops->get_rxfh_key_size)
1300 dev_key_size = ops->get_rxfh_key_size(dev);
1302 if (copy_from_user(&rxfh, useraddr, sizeof(rxfh)))
1305 /* Check that reserved fields are 0 for now */
1306 if (rxfh.rss_context || rxfh.rsvd8[0] || rxfh.rsvd8[1] ||
1307 rxfh.rsvd8[2] || rxfh.rsvd32)
1310 /* If either indir, hash key or function is valid, proceed further.
1311 * Must request at least one change: indir size, hash key or function.
1313 if ((rxfh.indir_size &&
1314 rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE &&
1315 rxfh.indir_size != dev_indir_size) ||
1316 (rxfh.key_size && (rxfh.key_size != dev_key_size)) ||
1317 (rxfh.indir_size == ETH_RXFH_INDIR_NO_CHANGE &&
1318 rxfh.key_size == 0 && rxfh.hfunc == ETH_RSS_HASH_NO_CHANGE))
1321 if (rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE)
1322 indir_bytes = dev_indir_size * sizeof(indir[0]);
1324 rss_config = kzalloc(indir_bytes + rxfh.key_size, GFP_USER);
1328 rx_rings.cmd = ETHTOOL_GRXRINGS;
1329 ret = ops->get_rxnfc(dev, &rx_rings, NULL);
1333 /* rxfh.indir_size == 0 means reset the indir table to default.
1334 * rxfh.indir_size == ETH_RXFH_INDIR_NO_CHANGE means leave it unchanged.
1336 if (rxfh.indir_size &&
1337 rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE) {
1338 indir = (u32 *)rss_config;
1339 ret = ethtool_copy_validate_indir(indir,
1340 useraddr + rss_cfg_offset,
1345 } else if (rxfh.indir_size == 0) {
1346 indir = (u32 *)rss_config;
1347 for (i = 0; i < dev_indir_size; i++)
1348 indir[i] = ethtool_rxfh_indir_default(i, rx_rings.data);
1351 if (rxfh.key_size) {
1352 hkey = rss_config + indir_bytes;
1353 if (copy_from_user(hkey,
1354 useraddr + rss_cfg_offset + indir_bytes,
1361 ret = ops->set_rxfh(dev, indir, hkey, rxfh.hfunc);
1365 /* indicate whether rxfh was set to default */
1366 if (rxfh.indir_size == 0)
1367 dev->priv_flags &= ~IFF_RXFH_CONFIGURED;
1368 else if (rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE)
1369 dev->priv_flags |= IFF_RXFH_CONFIGURED;
1376 static int ethtool_get_regs(struct net_device *dev, char __user *useraddr)
1378 struct ethtool_regs regs;
1379 const struct ethtool_ops *ops = dev->ethtool_ops;
1383 if (!ops->get_regs || !ops->get_regs_len)
1386 if (copy_from_user(®s, useraddr, sizeof(regs)))
1389 reglen = ops->get_regs_len(dev);
1393 if (regs.len > reglen)
1398 regbuf = vzalloc(reglen);
1403 if (regs.len < reglen)
1406 ops->get_regs(dev, ®s, regbuf);
1409 if (copy_to_user(useraddr, ®s, sizeof(regs)))
1411 useraddr += offsetof(struct ethtool_regs, data);
1412 if (copy_to_user(useraddr, regbuf, reglen))
1421 static int ethtool_reset(struct net_device *dev, char __user *useraddr)
1423 struct ethtool_value reset;
1426 if (!dev->ethtool_ops->reset)
1429 if (copy_from_user(&reset, useraddr, sizeof(reset)))
1432 ret = dev->ethtool_ops->reset(dev, &reset.data);
1436 if (copy_to_user(useraddr, &reset, sizeof(reset)))
1441 static int ethtool_get_wol(struct net_device *dev, char __user *useraddr)
1443 struct ethtool_wolinfo wol;
1445 if (!dev->ethtool_ops->get_wol)
1448 memset(&wol, 0, sizeof(struct ethtool_wolinfo));
1449 wol.cmd = ETHTOOL_GWOL;
1450 dev->ethtool_ops->get_wol(dev, &wol);
1452 if (copy_to_user(useraddr, &wol, sizeof(wol)))
1457 static int ethtool_set_wol(struct net_device *dev, char __user *useraddr)
1459 struct ethtool_wolinfo wol;
1461 if (!dev->ethtool_ops->set_wol)
1464 if (copy_from_user(&wol, useraddr, sizeof(wol)))
1467 return dev->ethtool_ops->set_wol(dev, &wol);
1470 static int ethtool_get_eee(struct net_device *dev, char __user *useraddr)
1472 struct ethtool_eee edata;
1475 if (!dev->ethtool_ops->get_eee)
1478 memset(&edata, 0, sizeof(struct ethtool_eee));
1479 edata.cmd = ETHTOOL_GEEE;
1480 rc = dev->ethtool_ops->get_eee(dev, &edata);
1485 if (copy_to_user(useraddr, &edata, sizeof(edata)))
1491 static int ethtool_set_eee(struct net_device *dev, char __user *useraddr)
1493 struct ethtool_eee edata;
1495 if (!dev->ethtool_ops->set_eee)
1498 if (copy_from_user(&edata, useraddr, sizeof(edata)))
1501 return dev->ethtool_ops->set_eee(dev, &edata);
1504 static int ethtool_nway_reset(struct net_device *dev)
1506 if (!dev->ethtool_ops->nway_reset)
1509 return dev->ethtool_ops->nway_reset(dev);
1512 static int ethtool_get_link(struct net_device *dev, char __user *useraddr)
1514 struct ethtool_value edata = { .cmd = ETHTOOL_GLINK };
1516 if (!dev->ethtool_ops->get_link)
1519 edata.data = netif_running(dev) && dev->ethtool_ops->get_link(dev);
1521 if (copy_to_user(useraddr, &edata, sizeof(edata)))
1526 static int ethtool_get_any_eeprom(struct net_device *dev, void __user *useraddr,
1527 int (*getter)(struct net_device *,
1528 struct ethtool_eeprom *, u8 *),
1531 struct ethtool_eeprom eeprom;
1532 void __user *userbuf = useraddr + sizeof(eeprom);
1533 u32 bytes_remaining;
1537 if (copy_from_user(&eeprom, useraddr, sizeof(eeprom)))
1540 /* Check for wrap and zero */
1541 if (eeprom.offset + eeprom.len <= eeprom.offset)
1544 /* Check for exceeding total eeprom len */
1545 if (eeprom.offset + eeprom.len > total_len)
1548 data = kmalloc(PAGE_SIZE, GFP_USER);
1552 bytes_remaining = eeprom.len;
1553 while (bytes_remaining > 0) {
1554 eeprom.len = min(bytes_remaining, (u32)PAGE_SIZE);
1556 ret = getter(dev, &eeprom, data);
1559 if (copy_to_user(userbuf, data, eeprom.len)) {
1563 userbuf += eeprom.len;
1564 eeprom.offset += eeprom.len;
1565 bytes_remaining -= eeprom.len;
1568 eeprom.len = userbuf - (useraddr + sizeof(eeprom));
1569 eeprom.offset -= eeprom.len;
1570 if (copy_to_user(useraddr, &eeprom, sizeof(eeprom)))
1577 static int ethtool_get_eeprom(struct net_device *dev, void __user *useraddr)
1579 const struct ethtool_ops *ops = dev->ethtool_ops;
1581 if (!ops->get_eeprom || !ops->get_eeprom_len ||
1582 !ops->get_eeprom_len(dev))
1585 return ethtool_get_any_eeprom(dev, useraddr, ops->get_eeprom,
1586 ops->get_eeprom_len(dev));
1589 static int ethtool_set_eeprom(struct net_device *dev, void __user *useraddr)
1591 struct ethtool_eeprom eeprom;
1592 const struct ethtool_ops *ops = dev->ethtool_ops;
1593 void __user *userbuf = useraddr + sizeof(eeprom);
1594 u32 bytes_remaining;
1598 if (!ops->set_eeprom || !ops->get_eeprom_len ||
1599 !ops->get_eeprom_len(dev))
1602 if (copy_from_user(&eeprom, useraddr, sizeof(eeprom)))
1605 /* Check for wrap and zero */
1606 if (eeprom.offset + eeprom.len <= eeprom.offset)
1609 /* Check for exceeding total eeprom len */
1610 if (eeprom.offset + eeprom.len > ops->get_eeprom_len(dev))
1613 data = kmalloc(PAGE_SIZE, GFP_USER);
1617 bytes_remaining = eeprom.len;
1618 while (bytes_remaining > 0) {
1619 eeprom.len = min(bytes_remaining, (u32)PAGE_SIZE);
1621 if (copy_from_user(data, userbuf, eeprom.len)) {
1625 ret = ops->set_eeprom(dev, &eeprom, data);
1628 userbuf += eeprom.len;
1629 eeprom.offset += eeprom.len;
1630 bytes_remaining -= eeprom.len;
1637 static noinline_for_stack int ethtool_get_coalesce(struct net_device *dev,
1638 void __user *useraddr)
1640 struct ethtool_coalesce coalesce = { .cmd = ETHTOOL_GCOALESCE };
1642 if (!dev->ethtool_ops->get_coalesce)
1645 dev->ethtool_ops->get_coalesce(dev, &coalesce);
1647 if (copy_to_user(useraddr, &coalesce, sizeof(coalesce)))
1652 static noinline_for_stack int ethtool_set_coalesce(struct net_device *dev,
1653 void __user *useraddr)
1655 struct ethtool_coalesce coalesce;
1657 if (!dev->ethtool_ops->set_coalesce)
1660 if (copy_from_user(&coalesce, useraddr, sizeof(coalesce)))
1663 return dev->ethtool_ops->set_coalesce(dev, &coalesce);
1666 static int ethtool_get_ringparam(struct net_device *dev, void __user *useraddr)
1668 struct ethtool_ringparam ringparam = { .cmd = ETHTOOL_GRINGPARAM };
1670 if (!dev->ethtool_ops->get_ringparam)
1673 dev->ethtool_ops->get_ringparam(dev, &ringparam);
1675 if (copy_to_user(useraddr, &ringparam, sizeof(ringparam)))
1680 static int ethtool_set_ringparam(struct net_device *dev, void __user *useraddr)
1682 struct ethtool_ringparam ringparam;
1684 if (!dev->ethtool_ops->set_ringparam)
1687 if (copy_from_user(&ringparam, useraddr, sizeof(ringparam)))
1690 return dev->ethtool_ops->set_ringparam(dev, &ringparam);
1693 static noinline_for_stack int ethtool_get_channels(struct net_device *dev,
1694 void __user *useraddr)
1696 struct ethtool_channels channels = { .cmd = ETHTOOL_GCHANNELS };
1698 if (!dev->ethtool_ops->get_channels)
1701 dev->ethtool_ops->get_channels(dev, &channels);
1703 if (copy_to_user(useraddr, &channels, sizeof(channels)))
1708 static noinline_for_stack int ethtool_set_channels(struct net_device *dev,
1709 void __user *useraddr)
1711 struct ethtool_channels channels, max = { .cmd = ETHTOOL_GCHANNELS };
1712 u32 max_rx_in_use = 0;
1714 if (!dev->ethtool_ops->set_channels || !dev->ethtool_ops->get_channels)
1717 if (copy_from_user(&channels, useraddr, sizeof(channels)))
1720 dev->ethtool_ops->get_channels(dev, &max);
1722 /* ensure new counts are within the maximums */
1723 if ((channels.rx_count > max.max_rx) ||
1724 (channels.tx_count > max.max_tx) ||
1725 (channels.combined_count > max.max_combined) ||
1726 (channels.other_count > max.max_other))
1729 /* ensure the new Rx count fits within the configured Rx flow
1730 * indirection table settings */
1731 if (netif_is_rxfh_configured(dev) &&
1732 !ethtool_get_max_rxfh_channel(dev, &max_rx_in_use) &&
1733 (channels.combined_count + channels.rx_count) <= max_rx_in_use)
1736 return dev->ethtool_ops->set_channels(dev, &channels);
1739 static int ethtool_get_pauseparam(struct net_device *dev, void __user *useraddr)
1741 struct ethtool_pauseparam pauseparam = { ETHTOOL_GPAUSEPARAM };
1743 if (!dev->ethtool_ops->get_pauseparam)
1746 dev->ethtool_ops->get_pauseparam(dev, &pauseparam);
1748 if (copy_to_user(useraddr, &pauseparam, sizeof(pauseparam)))
1753 static int ethtool_set_pauseparam(struct net_device *dev, void __user *useraddr)
1755 struct ethtool_pauseparam pauseparam;
1757 if (!dev->ethtool_ops->set_pauseparam)
1760 if (copy_from_user(&pauseparam, useraddr, sizeof(pauseparam)))
1763 return dev->ethtool_ops->set_pauseparam(dev, &pauseparam);
1766 static int ethtool_self_test(struct net_device *dev, char __user *useraddr)
1768 struct ethtool_test test;
1769 const struct ethtool_ops *ops = dev->ethtool_ops;
1773 if (!ops->self_test || !ops->get_sset_count)
1776 test_len = ops->get_sset_count(dev, ETH_SS_TEST);
1779 WARN_ON(test_len == 0);
1781 if (copy_from_user(&test, useraddr, sizeof(test)))
1784 test.len = test_len;
1785 data = kmalloc(test_len * sizeof(u64), GFP_USER);
1789 ops->self_test(dev, &test, data);
1792 if (copy_to_user(useraddr, &test, sizeof(test)))
1794 useraddr += sizeof(test);
1795 if (copy_to_user(useraddr, data, test.len * sizeof(u64)))
1804 static int ethtool_get_strings(struct net_device *dev, void __user *useraddr)
1806 struct ethtool_gstrings gstrings;
1810 if (copy_from_user(&gstrings, useraddr, sizeof(gstrings)))
1813 ret = __ethtool_get_sset_count(dev, gstrings.string_set);
1820 data = kcalloc(gstrings.len, ETH_GSTRING_LEN, GFP_USER);
1824 __ethtool_get_strings(dev, gstrings.string_set, data);
1830 if (copy_to_user(useraddr, &gstrings, sizeof(gstrings)))
1832 useraddr += sizeof(gstrings);
1834 copy_to_user(useraddr, data, gstrings.len * ETH_GSTRING_LEN))
1843 static int ethtool_phys_id(struct net_device *dev, void __user *useraddr)
1845 struct ethtool_value id;
1847 const struct ethtool_ops *ops = dev->ethtool_ops;
1850 if (!ops->set_phys_id)
1856 if (copy_from_user(&id, useraddr, sizeof(id)))
1859 rc = ops->set_phys_id(dev, ETHTOOL_ID_ACTIVE);
1863 /* Drop the RTNL lock while waiting, but prevent reentry or
1864 * removal of the device.
1871 /* Driver will handle this itself */
1872 schedule_timeout_interruptible(
1873 id.data ? (id.data * HZ) : MAX_SCHEDULE_TIMEOUT);
1875 /* Driver expects to be called at twice the frequency in rc */
1876 int n = rc * 2, i, interval = HZ / n;
1878 /* Count down seconds */
1880 /* Count down iterations per second */
1884 rc = ops->set_phys_id(dev,
1885 (i & 1) ? ETHTOOL_ID_OFF : ETHTOOL_ID_ON);
1889 schedule_timeout_interruptible(interval);
1890 } while (!signal_pending(current) && --i != 0);
1891 } while (!signal_pending(current) &&
1892 (id.data == 0 || --id.data != 0));
1899 (void) ops->set_phys_id(dev, ETHTOOL_ID_INACTIVE);
1903 static int ethtool_get_stats(struct net_device *dev, void __user *useraddr)
1905 struct ethtool_stats stats;
1906 const struct ethtool_ops *ops = dev->ethtool_ops;
1910 if (!ops->get_ethtool_stats || !ops->get_sset_count)
1913 n_stats = ops->get_sset_count(dev, ETH_SS_STATS);
1916 WARN_ON(n_stats == 0);
1918 if (copy_from_user(&stats, useraddr, sizeof(stats)))
1921 stats.n_stats = n_stats;
1923 data = kmalloc(n_stats * sizeof(u64), GFP_USER);
1927 ops->get_ethtool_stats(dev, &stats, data);
1933 if (copy_to_user(useraddr, &stats, sizeof(stats)))
1935 useraddr += sizeof(stats);
1936 if (n_stats && copy_to_user(useraddr, data, n_stats * sizeof(u64)))
1945 static int ethtool_get_phy_stats(struct net_device *dev, void __user *useraddr)
1947 struct ethtool_stats stats;
1948 struct phy_device *phydev = dev->phydev;
1955 n_stats = phy_get_sset_count(phydev);
1959 WARN_ON(n_stats == 0);
1961 if (copy_from_user(&stats, useraddr, sizeof(stats)))
1964 stats.n_stats = n_stats;
1966 data = kmalloc_array(n_stats, sizeof(u64), GFP_USER);
1970 mutex_lock(&phydev->lock);
1971 phydev->drv->get_stats(phydev, &stats, data);
1972 mutex_unlock(&phydev->lock);
1978 if (copy_to_user(useraddr, &stats, sizeof(stats)))
1980 useraddr += sizeof(stats);
1981 if (n_stats && copy_to_user(useraddr, data, n_stats * sizeof(u64)))
1990 static int ethtool_get_perm_addr(struct net_device *dev, void __user *useraddr)
1992 struct ethtool_perm_addr epaddr;
1994 if (copy_from_user(&epaddr, useraddr, sizeof(epaddr)))
1997 if (epaddr.size < dev->addr_len)
1999 epaddr.size = dev->addr_len;
2001 if (copy_to_user(useraddr, &epaddr, sizeof(epaddr)))
2003 useraddr += sizeof(epaddr);
2004 if (copy_to_user(useraddr, dev->perm_addr, epaddr.size))
2009 static int ethtool_get_value(struct net_device *dev, char __user *useraddr,
2010 u32 cmd, u32 (*actor)(struct net_device *))
2012 struct ethtool_value edata = { .cmd = cmd };
2017 edata.data = actor(dev);
2019 if (copy_to_user(useraddr, &edata, sizeof(edata)))
2024 static int ethtool_set_value_void(struct net_device *dev, char __user *useraddr,
2025 void (*actor)(struct net_device *, u32))
2027 struct ethtool_value edata;
2032 if (copy_from_user(&edata, useraddr, sizeof(edata)))
2035 actor(dev, edata.data);
2039 static int ethtool_set_value(struct net_device *dev, char __user *useraddr,
2040 int (*actor)(struct net_device *, u32))
2042 struct ethtool_value edata;
2047 if (copy_from_user(&edata, useraddr, sizeof(edata)))
2050 return actor(dev, edata.data);
2053 static noinline_for_stack int ethtool_flash_device(struct net_device *dev,
2054 char __user *useraddr)
2056 struct ethtool_flash efl;
2058 if (copy_from_user(&efl, useraddr, sizeof(efl)))
2061 if (!dev->ethtool_ops->flash_device)
2064 efl.data[ETHTOOL_FLASH_MAX_FILENAME - 1] = 0;
2066 return dev->ethtool_ops->flash_device(dev, &efl);
2069 static int ethtool_set_dump(struct net_device *dev,
2070 void __user *useraddr)
2072 struct ethtool_dump dump;
2074 if (!dev->ethtool_ops->set_dump)
2077 if (copy_from_user(&dump, useraddr, sizeof(dump)))
2080 return dev->ethtool_ops->set_dump(dev, &dump);
2083 static int ethtool_get_dump_flag(struct net_device *dev,
2084 void __user *useraddr)
2087 struct ethtool_dump dump;
2088 const struct ethtool_ops *ops = dev->ethtool_ops;
2090 if (!ops->get_dump_flag)
2093 if (copy_from_user(&dump, useraddr, sizeof(dump)))
2096 ret = ops->get_dump_flag(dev, &dump);
2100 if (copy_to_user(useraddr, &dump, sizeof(dump)))
2105 static int ethtool_get_dump_data(struct net_device *dev,
2106 void __user *useraddr)
2110 struct ethtool_dump dump, tmp;
2111 const struct ethtool_ops *ops = dev->ethtool_ops;
2114 if (!ops->get_dump_data || !ops->get_dump_flag)
2117 if (copy_from_user(&dump, useraddr, sizeof(dump)))
2120 memset(&tmp, 0, sizeof(tmp));
2121 tmp.cmd = ETHTOOL_GET_DUMP_FLAG;
2122 ret = ops->get_dump_flag(dev, &tmp);
2126 len = min(tmp.len, dump.len);
2130 /* Don't ever let the driver think there's more space available
2131 * than it requested with .get_dump_flag().
2135 /* Always allocate enough space to hold the whole thing so that the
2136 * driver does not need to check the length and bother with partial
2139 data = vzalloc(tmp.len);
2142 ret = ops->get_dump_data(dev, &dump, data);
2146 /* There are two sane possibilities:
2147 * 1. The driver's .get_dump_data() does not touch dump.len.
2148 * 2. Or it may set dump.len to how much it really writes, which
2149 * should be tmp.len (or len if it can do a partial dump).
2150 * In any case respond to userspace with the actual length of data
2153 WARN_ON(dump.len != len && dump.len != tmp.len);
2156 if (copy_to_user(useraddr, &dump, sizeof(dump))) {
2160 useraddr += offsetof(struct ethtool_dump, data);
2161 if (copy_to_user(useraddr, data, len))
2168 static int ethtool_get_ts_info(struct net_device *dev, void __user *useraddr)
2171 struct ethtool_ts_info info;
2172 const struct ethtool_ops *ops = dev->ethtool_ops;
2173 struct phy_device *phydev = dev->phydev;
2175 memset(&info, 0, sizeof(info));
2176 info.cmd = ETHTOOL_GET_TS_INFO;
2178 if (phydev && phydev->drv && phydev->drv->ts_info) {
2179 err = phydev->drv->ts_info(phydev, &info);
2180 } else if (ops->get_ts_info) {
2181 err = ops->get_ts_info(dev, &info);
2183 info.so_timestamping =
2184 SOF_TIMESTAMPING_RX_SOFTWARE |
2185 SOF_TIMESTAMPING_SOFTWARE;
2186 info.phc_index = -1;
2192 if (copy_to_user(useraddr, &info, sizeof(info)))
2198 static int __ethtool_get_module_info(struct net_device *dev,
2199 struct ethtool_modinfo *modinfo)
2201 const struct ethtool_ops *ops = dev->ethtool_ops;
2202 struct phy_device *phydev = dev->phydev;
2204 if (phydev && phydev->drv && phydev->drv->module_info)
2205 return phydev->drv->module_info(phydev, modinfo);
2207 if (ops->get_module_info)
2208 return ops->get_module_info(dev, modinfo);
2213 static int ethtool_get_module_info(struct net_device *dev,
2214 void __user *useraddr)
2217 struct ethtool_modinfo modinfo;
2219 if (copy_from_user(&modinfo, useraddr, sizeof(modinfo)))
2222 ret = __ethtool_get_module_info(dev, &modinfo);
2226 if (copy_to_user(useraddr, &modinfo, sizeof(modinfo)))
2232 static int __ethtool_get_module_eeprom(struct net_device *dev,
2233 struct ethtool_eeprom *ee, u8 *data)
2235 const struct ethtool_ops *ops = dev->ethtool_ops;
2236 struct phy_device *phydev = dev->phydev;
2238 if (phydev && phydev->drv && phydev->drv->module_eeprom)
2239 return phydev->drv->module_eeprom(phydev, ee, data);
2241 if (ops->get_module_eeprom)
2242 return ops->get_module_eeprom(dev, ee, data);
2247 static int ethtool_get_module_eeprom(struct net_device *dev,
2248 void __user *useraddr)
2251 struct ethtool_modinfo modinfo;
2253 ret = __ethtool_get_module_info(dev, &modinfo);
2257 return ethtool_get_any_eeprom(dev, useraddr,
2258 __ethtool_get_module_eeprom,
2259 modinfo.eeprom_len);
2262 static int ethtool_tunable_valid(const struct ethtool_tunable *tuna)
2265 case ETHTOOL_RX_COPYBREAK:
2266 case ETHTOOL_TX_COPYBREAK:
2267 if (tuna->len != sizeof(u32) ||
2268 tuna->type_id != ETHTOOL_TUNABLE_U32)
2278 static int ethtool_get_tunable(struct net_device *dev, void __user *useraddr)
2281 struct ethtool_tunable tuna;
2282 const struct ethtool_ops *ops = dev->ethtool_ops;
2285 if (!ops->get_tunable)
2287 if (copy_from_user(&tuna, useraddr, sizeof(tuna)))
2289 ret = ethtool_tunable_valid(&tuna);
2292 data = kmalloc(tuna.len, GFP_USER);
2295 ret = ops->get_tunable(dev, &tuna, data);
2298 useraddr += sizeof(tuna);
2300 if (copy_to_user(useraddr, data, tuna.len))
2309 static int ethtool_set_tunable(struct net_device *dev, void __user *useraddr)
2312 struct ethtool_tunable tuna;
2313 const struct ethtool_ops *ops = dev->ethtool_ops;
2316 if (!ops->set_tunable)
2318 if (copy_from_user(&tuna, useraddr, sizeof(tuna)))
2320 ret = ethtool_tunable_valid(&tuna);
2323 data = kmalloc(tuna.len, GFP_USER);
2326 useraddr += sizeof(tuna);
2328 if (copy_from_user(data, useraddr, tuna.len))
2330 ret = ops->set_tunable(dev, &tuna, data);
2337 static noinline_for_stack int
2338 ethtool_get_per_queue_coalesce(struct net_device *dev,
2339 void __user *useraddr,
2340 struct ethtool_per_queue_op *per_queue_opt)
2344 DECLARE_BITMAP(queue_mask, MAX_NUM_QUEUE);
2346 if (!dev->ethtool_ops->get_per_queue_coalesce)
2349 useraddr += sizeof(*per_queue_opt);
2351 bitmap_from_u32array(queue_mask,
2353 per_queue_opt->queue_mask,
2354 DIV_ROUND_UP(MAX_NUM_QUEUE, 32));
2356 for_each_set_bit(bit, queue_mask, MAX_NUM_QUEUE) {
2357 struct ethtool_coalesce coalesce = { .cmd = ETHTOOL_GCOALESCE };
2359 ret = dev->ethtool_ops->get_per_queue_coalesce(dev, bit, &coalesce);
2362 if (copy_to_user(useraddr, &coalesce, sizeof(coalesce)))
2364 useraddr += sizeof(coalesce);
2370 static noinline_for_stack int
2371 ethtool_set_per_queue_coalesce(struct net_device *dev,
2372 void __user *useraddr,
2373 struct ethtool_per_queue_op *per_queue_opt)
2378 struct ethtool_coalesce *backup = NULL, *tmp = NULL;
2379 DECLARE_BITMAP(queue_mask, MAX_NUM_QUEUE);
2381 if ((!dev->ethtool_ops->set_per_queue_coalesce) ||
2382 (!dev->ethtool_ops->get_per_queue_coalesce))
2385 useraddr += sizeof(*per_queue_opt);
2387 bitmap_from_u32array(queue_mask,
2389 per_queue_opt->queue_mask,
2390 DIV_ROUND_UP(MAX_NUM_QUEUE, 32));
2391 n_queue = bitmap_weight(queue_mask, MAX_NUM_QUEUE);
2392 tmp = backup = kmalloc_array(n_queue, sizeof(*backup), GFP_KERNEL);
2396 for_each_set_bit(bit, queue_mask, MAX_NUM_QUEUE) {
2397 struct ethtool_coalesce coalesce;
2399 ret = dev->ethtool_ops->get_per_queue_coalesce(dev, bit, tmp);
2405 if (copy_from_user(&coalesce, useraddr, sizeof(coalesce))) {
2410 ret = dev->ethtool_ops->set_per_queue_coalesce(dev, bit, &coalesce);
2414 useraddr += sizeof(coalesce);
2420 for_each_set_bit(i, queue_mask, bit) {
2421 dev->ethtool_ops->set_per_queue_coalesce(dev, i, tmp);
2430 static int noinline_for_stack ethtool_set_per_queue(struct net_device *dev,
2431 void __user *useraddr, u32 sub_cmd)
2433 struct ethtool_per_queue_op per_queue_opt;
2435 if (copy_from_user(&per_queue_opt, useraddr, sizeof(per_queue_opt)))
2438 if (per_queue_opt.sub_command != sub_cmd)
2441 switch (per_queue_opt.sub_command) {
2442 case ETHTOOL_GCOALESCE:
2443 return ethtool_get_per_queue_coalesce(dev, useraddr, &per_queue_opt);
2444 case ETHTOOL_SCOALESCE:
2445 return ethtool_set_per_queue_coalesce(dev, useraddr, &per_queue_opt);
2451 /* The main entry point in this file. Called from net/core/dev_ioctl.c */
2453 int dev_ethtool(struct net *net, struct ifreq *ifr)
2455 struct net_device *dev = __dev_get_by_name(net, ifr->ifr_name);
2456 void __user *useraddr = ifr->ifr_data;
2457 u32 ethcmd, sub_cmd;
2459 netdev_features_t old_features;
2461 if (!dev || !netif_device_present(dev))
2464 if (copy_from_user(ðcmd, useraddr, sizeof(ethcmd)))
2467 if (ethcmd == ETHTOOL_PERQUEUE) {
2468 if (copy_from_user(&sub_cmd, useraddr + sizeof(ethcmd), sizeof(sub_cmd)))
2473 /* Allow some commands to be done by anyone */
2476 case ETHTOOL_GDRVINFO:
2477 case ETHTOOL_GMSGLVL:
2479 case ETHTOOL_GCOALESCE:
2480 case ETHTOOL_GRINGPARAM:
2481 case ETHTOOL_GPAUSEPARAM:
2482 case ETHTOOL_GRXCSUM:
2483 case ETHTOOL_GTXCSUM:
2485 case ETHTOOL_GSSET_INFO:
2486 case ETHTOOL_GSTRINGS:
2487 case ETHTOOL_GSTATS:
2488 case ETHTOOL_GPHYSTATS:
2490 case ETHTOOL_GPERMADDR:
2494 case ETHTOOL_GFLAGS:
2495 case ETHTOOL_GPFLAGS:
2497 case ETHTOOL_GRXRINGS:
2498 case ETHTOOL_GRXCLSRLCNT:
2499 case ETHTOOL_GRXCLSRULE:
2500 case ETHTOOL_GRXCLSRLALL:
2501 case ETHTOOL_GRXFHINDIR:
2503 case ETHTOOL_GFEATURES:
2504 case ETHTOOL_GCHANNELS:
2505 case ETHTOOL_GET_TS_INFO:
2507 case ETHTOOL_GTUNABLE:
2508 case ETHTOOL_GLINKSETTINGS:
2511 if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
2515 if (dev->ethtool_ops->begin) {
2516 rc = dev->ethtool_ops->begin(dev);
2520 old_features = dev->features;
2524 rc = ethtool_get_settings(dev, useraddr);
2527 rc = ethtool_set_settings(dev, useraddr);
2529 case ETHTOOL_GDRVINFO:
2530 rc = ethtool_get_drvinfo(dev, useraddr);
2533 rc = ethtool_get_regs(dev, useraddr);
2536 rc = ethtool_get_wol(dev, useraddr);
2539 rc = ethtool_set_wol(dev, useraddr);
2541 case ETHTOOL_GMSGLVL:
2542 rc = ethtool_get_value(dev, useraddr, ethcmd,
2543 dev->ethtool_ops->get_msglevel);
2545 case ETHTOOL_SMSGLVL:
2546 rc = ethtool_set_value_void(dev, useraddr,
2547 dev->ethtool_ops->set_msglevel);
2550 rc = ethtool_get_eee(dev, useraddr);
2553 rc = ethtool_set_eee(dev, useraddr);
2555 case ETHTOOL_NWAY_RST:
2556 rc = ethtool_nway_reset(dev);
2559 rc = ethtool_get_link(dev, useraddr);
2561 case ETHTOOL_GEEPROM:
2562 rc = ethtool_get_eeprom(dev, useraddr);
2564 case ETHTOOL_SEEPROM:
2565 rc = ethtool_set_eeprom(dev, useraddr);
2567 case ETHTOOL_GCOALESCE:
2568 rc = ethtool_get_coalesce(dev, useraddr);
2570 case ETHTOOL_SCOALESCE:
2571 rc = ethtool_set_coalesce(dev, useraddr);
2573 case ETHTOOL_GRINGPARAM:
2574 rc = ethtool_get_ringparam(dev, useraddr);
2576 case ETHTOOL_SRINGPARAM:
2577 rc = ethtool_set_ringparam(dev, useraddr);
2579 case ETHTOOL_GPAUSEPARAM:
2580 rc = ethtool_get_pauseparam(dev, useraddr);
2582 case ETHTOOL_SPAUSEPARAM:
2583 rc = ethtool_set_pauseparam(dev, useraddr);
2586 rc = ethtool_self_test(dev, useraddr);
2588 case ETHTOOL_GSTRINGS:
2589 rc = ethtool_get_strings(dev, useraddr);
2591 case ETHTOOL_PHYS_ID:
2592 rc = ethtool_phys_id(dev, useraddr);
2594 case ETHTOOL_GSTATS:
2595 rc = ethtool_get_stats(dev, useraddr);
2597 case ETHTOOL_GPERMADDR:
2598 rc = ethtool_get_perm_addr(dev, useraddr);
2600 case ETHTOOL_GFLAGS:
2601 rc = ethtool_get_value(dev, useraddr, ethcmd,
2602 __ethtool_get_flags);
2604 case ETHTOOL_SFLAGS:
2605 rc = ethtool_set_value(dev, useraddr, __ethtool_set_flags);
2607 case ETHTOOL_GPFLAGS:
2608 rc = ethtool_get_value(dev, useraddr, ethcmd,
2609 dev->ethtool_ops->get_priv_flags);
2611 case ETHTOOL_SPFLAGS:
2612 rc = ethtool_set_value(dev, useraddr,
2613 dev->ethtool_ops->set_priv_flags);
2616 case ETHTOOL_GRXRINGS:
2617 case ETHTOOL_GRXCLSRLCNT:
2618 case ETHTOOL_GRXCLSRULE:
2619 case ETHTOOL_GRXCLSRLALL:
2620 rc = ethtool_get_rxnfc(dev, ethcmd, useraddr);
2623 case ETHTOOL_SRXCLSRLDEL:
2624 case ETHTOOL_SRXCLSRLINS:
2625 rc = ethtool_set_rxnfc(dev, ethcmd, useraddr);
2627 case ETHTOOL_FLASHDEV:
2628 rc = ethtool_flash_device(dev, useraddr);
2631 rc = ethtool_reset(dev, useraddr);
2633 case ETHTOOL_GSSET_INFO:
2634 rc = ethtool_get_sset_info(dev, useraddr);
2636 case ETHTOOL_GRXFHINDIR:
2637 rc = ethtool_get_rxfh_indir(dev, useraddr);
2639 case ETHTOOL_SRXFHINDIR:
2640 rc = ethtool_set_rxfh_indir(dev, useraddr);
2643 rc = ethtool_get_rxfh(dev, useraddr);
2646 rc = ethtool_set_rxfh(dev, useraddr);
2648 case ETHTOOL_GFEATURES:
2649 rc = ethtool_get_features(dev, useraddr);
2651 case ETHTOOL_SFEATURES:
2652 rc = ethtool_set_features(dev, useraddr);
2654 case ETHTOOL_GTXCSUM:
2655 case ETHTOOL_GRXCSUM:
2661 rc = ethtool_get_one_feature(dev, useraddr, ethcmd);
2663 case ETHTOOL_STXCSUM:
2664 case ETHTOOL_SRXCSUM:
2670 rc = ethtool_set_one_feature(dev, useraddr, ethcmd);
2672 case ETHTOOL_GCHANNELS:
2673 rc = ethtool_get_channels(dev, useraddr);
2675 case ETHTOOL_SCHANNELS:
2676 rc = ethtool_set_channels(dev, useraddr);
2678 case ETHTOOL_SET_DUMP:
2679 rc = ethtool_set_dump(dev, useraddr);
2681 case ETHTOOL_GET_DUMP_FLAG:
2682 rc = ethtool_get_dump_flag(dev, useraddr);
2684 case ETHTOOL_GET_DUMP_DATA:
2685 rc = ethtool_get_dump_data(dev, useraddr);
2687 case ETHTOOL_GET_TS_INFO:
2688 rc = ethtool_get_ts_info(dev, useraddr);
2690 case ETHTOOL_GMODULEINFO:
2691 rc = ethtool_get_module_info(dev, useraddr);
2693 case ETHTOOL_GMODULEEEPROM:
2694 rc = ethtool_get_module_eeprom(dev, useraddr);
2696 case ETHTOOL_GTUNABLE:
2697 rc = ethtool_get_tunable(dev, useraddr);
2699 case ETHTOOL_STUNABLE:
2700 rc = ethtool_set_tunable(dev, useraddr);
2702 case ETHTOOL_GPHYSTATS:
2703 rc = ethtool_get_phy_stats(dev, useraddr);
2705 case ETHTOOL_PERQUEUE:
2706 rc = ethtool_set_per_queue(dev, useraddr, sub_cmd);
2708 case ETHTOOL_GLINKSETTINGS:
2709 rc = ethtool_get_link_ksettings(dev, useraddr);
2711 case ETHTOOL_SLINKSETTINGS:
2712 rc = ethtool_set_link_ksettings(dev, useraddr);
2718 if (dev->ethtool_ops->complete)
2719 dev->ethtool_ops->complete(dev);
2721 if (old_features != dev->features)
2722 netdev_features_change(dev);