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/bitops.h>
21 #include <linux/uaccess.h>
22 #include <linux/vmalloc.h>
23 #include <linux/slab.h>
26 * Some useful ethtool_ops methods that're device independent.
27 * If we find that all drivers want to do the same thing here,
28 * we can turn these into dev_() function calls.
31 u32 ethtool_op_get_link(struct net_device *dev)
33 return netif_carrier_ok(dev) ? 1 : 0;
35 EXPORT_SYMBOL(ethtool_op_get_link);
37 u32 ethtool_op_get_tx_csum(struct net_device *dev)
39 return (dev->features & NETIF_F_ALL_CSUM) != 0;
41 EXPORT_SYMBOL(ethtool_op_get_tx_csum);
43 int ethtool_op_set_tx_csum(struct net_device *dev, u32 data)
46 dev->features |= NETIF_F_IP_CSUM;
48 dev->features &= ~NETIF_F_IP_CSUM;
52 EXPORT_SYMBOL(ethtool_op_set_tx_csum);
54 int ethtool_op_set_tx_hw_csum(struct net_device *dev, u32 data)
57 dev->features |= NETIF_F_HW_CSUM;
59 dev->features &= ~NETIF_F_HW_CSUM;
63 EXPORT_SYMBOL(ethtool_op_set_tx_hw_csum);
65 int ethtool_op_set_tx_ipv6_csum(struct net_device *dev, u32 data)
68 dev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
70 dev->features &= ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM);
74 EXPORT_SYMBOL(ethtool_op_set_tx_ipv6_csum);
76 u32 ethtool_op_get_sg(struct net_device *dev)
78 return (dev->features & NETIF_F_SG) != 0;
80 EXPORT_SYMBOL(ethtool_op_get_sg);
82 int ethtool_op_set_sg(struct net_device *dev, u32 data)
85 dev->features |= NETIF_F_SG;
87 dev->features &= ~NETIF_F_SG;
91 EXPORT_SYMBOL(ethtool_op_set_sg);
93 u32 ethtool_op_get_tso(struct net_device *dev)
95 return (dev->features & NETIF_F_TSO) != 0;
97 EXPORT_SYMBOL(ethtool_op_get_tso);
99 int ethtool_op_set_tso(struct net_device *dev, u32 data)
102 dev->features |= NETIF_F_TSO;
104 dev->features &= ~NETIF_F_TSO;
108 EXPORT_SYMBOL(ethtool_op_set_tso);
110 u32 ethtool_op_get_ufo(struct net_device *dev)
112 return (dev->features & NETIF_F_UFO) != 0;
114 EXPORT_SYMBOL(ethtool_op_get_ufo);
116 int ethtool_op_set_ufo(struct net_device *dev, u32 data)
119 dev->features |= NETIF_F_UFO;
121 dev->features &= ~NETIF_F_UFO;
124 EXPORT_SYMBOL(ethtool_op_set_ufo);
126 /* the following list of flags are the same as their associated
127 * NETIF_F_xxx values in include/linux/netdevice.h
129 static const u32 flags_dup_features =
130 (ETH_FLAG_LRO | ETH_FLAG_RXVLAN | ETH_FLAG_TXVLAN | ETH_FLAG_NTUPLE |
133 u32 ethtool_op_get_flags(struct net_device *dev)
135 /* in the future, this function will probably contain additional
136 * handling for flags which are not so easily handled
137 * by a simple masking operation
140 return dev->features & flags_dup_features;
142 EXPORT_SYMBOL(ethtool_op_get_flags);
144 int ethtool_op_set_flags(struct net_device *dev, u32 data, u32 supported)
146 if (data & ~supported)
149 dev->features = ((dev->features & ~flags_dup_features) |
150 (data & flags_dup_features));
153 EXPORT_SYMBOL(ethtool_op_set_flags);
155 void ethtool_ntuple_flush(struct net_device *dev)
157 struct ethtool_rx_ntuple_flow_spec_container *fsc, *f;
159 list_for_each_entry_safe(fsc, f, &dev->ethtool_ntuple_list.list, list) {
160 list_del(&fsc->list);
163 dev->ethtool_ntuple_list.count = 0;
165 EXPORT_SYMBOL(ethtool_ntuple_flush);
167 /* Handlers for each ethtool command */
169 #define ETHTOOL_DEV_FEATURE_WORDS 1
171 static void ethtool_get_features_compat(struct net_device *dev,
172 struct ethtool_get_features_block *features)
174 if (!dev->ethtool_ops)
177 /* getting RX checksum */
178 if (dev->ethtool_ops->get_rx_csum)
179 if (dev->ethtool_ops->get_rx_csum(dev))
180 features[0].active |= NETIF_F_RXCSUM;
182 /* mark legacy-changeable features */
183 if (dev->ethtool_ops->set_sg)
184 features[0].available |= NETIF_F_SG;
185 if (dev->ethtool_ops->set_tx_csum)
186 features[0].available |= NETIF_F_ALL_CSUM;
187 if (dev->ethtool_ops->set_tso)
188 features[0].available |= NETIF_F_ALL_TSO;
189 if (dev->ethtool_ops->set_rx_csum)
190 features[0].available |= NETIF_F_RXCSUM;
191 if (dev->ethtool_ops->set_flags)
192 features[0].available |= flags_dup_features;
195 static int ethtool_set_feature_compat(struct net_device *dev,
196 int (*legacy_set)(struct net_device *, u32),
197 struct ethtool_set_features_block *features, u32 mask)
204 if (!(features[0].valid & mask))
207 features[0].valid &= ~mask;
209 do_set = !!(features[0].requested & mask);
211 if (legacy_set(dev, do_set) < 0)
213 "Legacy feature change (%s) failed for 0x%08x\n",
214 do_set ? "set" : "clear", mask);
219 static int ethtool_set_features_compat(struct net_device *dev,
220 struct ethtool_set_features_block *features)
224 if (!dev->ethtool_ops)
227 compat = ethtool_set_feature_compat(dev, dev->ethtool_ops->set_sg,
228 features, NETIF_F_SG);
229 compat |= ethtool_set_feature_compat(dev, dev->ethtool_ops->set_tx_csum,
230 features, NETIF_F_ALL_CSUM);
231 compat |= ethtool_set_feature_compat(dev, dev->ethtool_ops->set_tso,
232 features, NETIF_F_ALL_TSO);
233 compat |= ethtool_set_feature_compat(dev, dev->ethtool_ops->set_rx_csum,
234 features, NETIF_F_RXCSUM);
235 compat |= ethtool_set_feature_compat(dev, dev->ethtool_ops->set_flags,
236 features, flags_dup_features);
241 static int ethtool_get_features(struct net_device *dev, void __user *useraddr)
243 struct ethtool_gfeatures cmd = {
244 .cmd = ETHTOOL_GFEATURES,
245 .size = ETHTOOL_DEV_FEATURE_WORDS,
247 struct ethtool_get_features_block features[ETHTOOL_DEV_FEATURE_WORDS] = {
249 .available = dev->hw_features,
250 .requested = dev->wanted_features,
251 .active = dev->features,
252 .never_changed = NETIF_F_NEVER_CHANGE,
255 u32 __user *sizeaddr;
258 ethtool_get_features_compat(dev, features);
260 sizeaddr = useraddr + offsetof(struct ethtool_gfeatures, size);
261 if (get_user(copy_size, sizeaddr))
264 if (copy_size > ETHTOOL_DEV_FEATURE_WORDS)
265 copy_size = ETHTOOL_DEV_FEATURE_WORDS;
267 if (copy_to_user(useraddr, &cmd, sizeof(cmd)))
269 useraddr += sizeof(cmd);
270 if (copy_to_user(useraddr, features, copy_size * sizeof(*features)))
276 static int ethtool_set_features(struct net_device *dev, void __user *useraddr)
278 struct ethtool_sfeatures cmd;
279 struct ethtool_set_features_block features[ETHTOOL_DEV_FEATURE_WORDS];
282 if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
284 useraddr += sizeof(cmd);
286 if (cmd.size != ETHTOOL_DEV_FEATURE_WORDS)
289 if (copy_from_user(features, useraddr, sizeof(features)))
292 if (features[0].valid & ~NETIF_F_ETHTOOL_BITS)
295 if (ethtool_set_features_compat(dev, features))
296 ret |= ETHTOOL_F_COMPAT;
298 if (features[0].valid & ~dev->hw_features) {
299 features[0].valid &= dev->hw_features;
300 ret |= ETHTOOL_F_UNSUPPORTED;
303 dev->wanted_features &= ~features[0].valid;
304 dev->wanted_features |= features[0].valid & features[0].requested;
305 netdev_update_features(dev);
307 if ((dev->wanted_features ^ dev->features) & features[0].valid)
308 ret |= ETHTOOL_F_WISH;
313 static const char netdev_features_strings[ETHTOOL_DEV_FEATURE_WORDS * 32][ETH_GSTRING_LEN] = {
314 /* NETIF_F_SG */ "tx-scatter-gather",
315 /* NETIF_F_IP_CSUM */ "tx-checksum-ipv4",
316 /* NETIF_F_NO_CSUM */ "tx-checksum-unneeded",
317 /* NETIF_F_HW_CSUM */ "tx-checksum-ip-generic",
318 /* NETIF_F_IPV6_CSUM */ "tx_checksum-ipv6",
319 /* NETIF_F_HIGHDMA */ "highdma",
320 /* NETIF_F_FRAGLIST */ "tx-scatter-gather-fraglist",
321 /* NETIF_F_HW_VLAN_TX */ "tx-vlan-hw-insert",
323 /* NETIF_F_HW_VLAN_RX */ "rx-vlan-hw-parse",
324 /* NETIF_F_HW_VLAN_FILTER */ "rx-vlan-filter",
325 /* NETIF_F_VLAN_CHALLENGED */ "vlan-challenged",
326 /* NETIF_F_GSO */ "tx-generic-segmentation",
327 /* NETIF_F_LLTX */ "tx-lockless",
328 /* NETIF_F_NETNS_LOCAL */ "netns-local",
329 /* NETIF_F_GRO */ "rx-gro",
330 /* NETIF_F_LRO */ "rx-lro",
332 /* NETIF_F_TSO */ "tx-tcp-segmentation",
333 /* NETIF_F_UFO */ "tx-udp-fragmentation",
334 /* NETIF_F_GSO_ROBUST */ "tx-gso-robust",
335 /* NETIF_F_TSO_ECN */ "tx-tcp-ecn-segmentation",
336 /* NETIF_F_TSO6 */ "tx-tcp6-segmentation",
337 /* NETIF_F_FSO */ "tx-fcoe-segmentation",
341 /* NETIF_F_FCOE_CRC */ "tx-checksum-fcoe-crc",
342 /* NETIF_F_SCTP_CSUM */ "tx-checksum-sctp",
343 /* NETIF_F_FCOE_MTU */ "fcoe-mtu",
344 /* NETIF_F_NTUPLE */ "rx-ntuple-filter",
345 /* NETIF_F_RXHASH */ "rx-hashing",
346 /* NETIF_F_RXCSUM */ "rx-checksum",
351 static int __ethtool_get_sset_count(struct net_device *dev, int sset)
353 const struct ethtool_ops *ops = dev->ethtool_ops;
355 if (sset == ETH_SS_FEATURES)
356 return ARRAY_SIZE(netdev_features_strings);
358 if (ops && ops->get_sset_count && ops->get_strings)
359 return ops->get_sset_count(dev, sset);
364 static void __ethtool_get_strings(struct net_device *dev,
365 u32 stringset, u8 *data)
367 const struct ethtool_ops *ops = dev->ethtool_ops;
369 if (stringset == ETH_SS_FEATURES)
370 memcpy(data, netdev_features_strings,
371 sizeof(netdev_features_strings));
373 /* ops->get_strings is valid because checked earlier */
374 ops->get_strings(dev, stringset, data);
377 static u32 ethtool_get_feature_mask(u32 eth_cmd)
379 /* feature masks of legacy discrete ethtool ops */
382 case ETHTOOL_GTXCSUM:
383 case ETHTOOL_STXCSUM:
384 return NETIF_F_ALL_CSUM | NETIF_F_SCTP_CSUM;
385 case ETHTOOL_GRXCSUM:
386 case ETHTOOL_SRXCSUM:
387 return NETIF_F_RXCSUM;
393 return NETIF_F_ALL_TSO;
408 static void *__ethtool_get_one_feature_actor(struct net_device *dev, u32 ethcmd)
410 const struct ethtool_ops *ops = dev->ethtool_ops;
416 case ETHTOOL_GTXCSUM:
417 return ops->get_tx_csum;
418 case ETHTOOL_GRXCSUM:
419 return ops->get_rx_csum;
431 static u32 __ethtool_get_rx_csum_oldbug(struct net_device *dev)
433 return !!(dev->features & NETIF_F_ALL_CSUM);
436 static int ethtool_get_one_feature(struct net_device *dev,
437 char __user *useraddr, u32 ethcmd)
439 u32 mask = ethtool_get_feature_mask(ethcmd);
440 struct ethtool_value edata = {
442 .data = !!(dev->features & mask),
445 /* compatibility with discrete get_ ops */
446 if (!(dev->hw_features & mask)) {
447 u32 (*actor)(struct net_device *);
449 actor = __ethtool_get_one_feature_actor(dev, ethcmd);
451 /* bug compatibility with old get_rx_csum */
452 if (ethcmd == ETHTOOL_GRXCSUM && !actor)
453 actor = __ethtool_get_rx_csum_oldbug;
456 edata.data = actor(dev);
459 if (copy_to_user(useraddr, &edata, sizeof(edata)))
464 static int __ethtool_set_tx_csum(struct net_device *dev, u32 data);
465 static int __ethtool_set_rx_csum(struct net_device *dev, u32 data);
466 static int __ethtool_set_sg(struct net_device *dev, u32 data);
467 static int __ethtool_set_tso(struct net_device *dev, u32 data);
468 static int __ethtool_set_ufo(struct net_device *dev, u32 data);
470 static int ethtool_set_one_feature(struct net_device *dev,
471 void __user *useraddr, u32 ethcmd)
473 struct ethtool_value edata;
476 if (copy_from_user(&edata, useraddr, sizeof(edata)))
479 mask = ethtool_get_feature_mask(ethcmd);
480 mask &= dev->hw_features;
483 dev->wanted_features |= mask;
485 dev->wanted_features &= ~mask;
487 netdev_update_features(dev);
491 /* Driver is not converted to ndo_fix_features or does not
492 * support changing this offload. In the latter case it won't
493 * have corresponding ethtool_ops field set.
495 * Following part is to be removed after all drivers advertise
496 * their changeable features in netdev->hw_features and stop
497 * using discrete offload setting ops.
501 case ETHTOOL_STXCSUM:
502 return __ethtool_set_tx_csum(dev, edata.data);
503 case ETHTOOL_SRXCSUM:
504 return __ethtool_set_rx_csum(dev, edata.data);
506 return __ethtool_set_sg(dev, edata.data);
508 return __ethtool_set_tso(dev, edata.data);
510 return __ethtool_set_ufo(dev, edata.data);
516 static int __ethtool_set_flags(struct net_device *dev, u32 data)
520 if (data & ~flags_dup_features)
523 /* legacy set_flags() op */
524 if (dev->ethtool_ops->set_flags) {
525 if (unlikely(dev->hw_features & flags_dup_features))
527 "driver BUG: mixed hw_features and set_flags()\n");
528 return dev->ethtool_ops->set_flags(dev, data);
531 /* allow changing only bits set in hw_features */
532 changed = (data ^ dev->wanted_features) & flags_dup_features;
533 if (changed & ~dev->hw_features)
534 return (changed & dev->hw_features) ? -EINVAL : -EOPNOTSUPP;
536 dev->wanted_features =
537 (dev->wanted_features & ~changed) | data;
539 netdev_update_features(dev);
544 static int ethtool_get_settings(struct net_device *dev, void __user *useraddr)
546 struct ethtool_cmd cmd = { .cmd = ETHTOOL_GSET };
549 if (!dev->ethtool_ops->get_settings)
552 err = dev->ethtool_ops->get_settings(dev, &cmd);
556 if (copy_to_user(useraddr, &cmd, sizeof(cmd)))
561 static int ethtool_set_settings(struct net_device *dev, void __user *useraddr)
563 struct ethtool_cmd cmd;
565 if (!dev->ethtool_ops->set_settings)
568 if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
571 return dev->ethtool_ops->set_settings(dev, &cmd);
574 static noinline_for_stack int ethtool_get_drvinfo(struct net_device *dev,
575 void __user *useraddr)
577 struct ethtool_drvinfo info;
578 const struct ethtool_ops *ops = dev->ethtool_ops;
580 memset(&info, 0, sizeof(info));
581 info.cmd = ETHTOOL_GDRVINFO;
582 if (ops && ops->get_drvinfo) {
583 ops->get_drvinfo(dev, &info);
584 } else if (dev->dev.parent && dev->dev.parent->driver) {
585 strlcpy(info.bus_info, dev_name(dev->dev.parent),
586 sizeof(info.bus_info));
587 strlcpy(info.driver, dev->dev.parent->driver->name,
588 sizeof(info.driver));
594 * this method of obtaining string set info is deprecated;
595 * Use ETHTOOL_GSSET_INFO instead.
597 if (ops && ops->get_sset_count) {
600 rc = ops->get_sset_count(dev, ETH_SS_TEST);
602 info.testinfo_len = rc;
603 rc = ops->get_sset_count(dev, ETH_SS_STATS);
606 rc = ops->get_sset_count(dev, ETH_SS_PRIV_FLAGS);
608 info.n_priv_flags = rc;
610 if (ops && ops->get_regs_len)
611 info.regdump_len = ops->get_regs_len(dev);
612 if (ops && ops->get_eeprom_len)
613 info.eedump_len = ops->get_eeprom_len(dev);
615 if (copy_to_user(useraddr, &info, sizeof(info)))
620 static noinline_for_stack int ethtool_get_sset_info(struct net_device *dev,
621 void __user *useraddr)
623 struct ethtool_sset_info info;
625 int i, idx = 0, n_bits = 0, ret, rc;
626 u32 *info_buf = NULL;
628 if (copy_from_user(&info, useraddr, sizeof(info)))
631 /* store copy of mask, because we zero struct later on */
632 sset_mask = info.sset_mask;
636 /* calculate size of return buffer */
637 n_bits = hweight64(sset_mask);
639 memset(&info, 0, sizeof(info));
640 info.cmd = ETHTOOL_GSSET_INFO;
642 info_buf = kzalloc(n_bits * sizeof(u32), GFP_USER);
647 * fill return buffer based on input bitmask and successful
648 * get_sset_count return
650 for (i = 0; i < 64; i++) {
651 if (!(sset_mask & (1ULL << i)))
654 rc = __ethtool_get_sset_count(dev, i);
656 info.sset_mask |= (1ULL << i);
657 info_buf[idx++] = rc;
662 if (copy_to_user(useraddr, &info, sizeof(info)))
665 useraddr += offsetof(struct ethtool_sset_info, data);
666 if (copy_to_user(useraddr, info_buf, idx * sizeof(u32)))
676 static noinline_for_stack int ethtool_set_rxnfc(struct net_device *dev,
677 u32 cmd, void __user *useraddr)
679 struct ethtool_rxnfc info;
680 size_t info_size = sizeof(info);
682 if (!dev->ethtool_ops->set_rxnfc)
685 /* struct ethtool_rxnfc was originally defined for
686 * ETHTOOL_{G,S}RXFH with only the cmd, flow_type and data
687 * members. User-space might still be using that
689 if (cmd == ETHTOOL_SRXFH)
690 info_size = (offsetof(struct ethtool_rxnfc, data) +
693 if (copy_from_user(&info, useraddr, info_size))
696 return dev->ethtool_ops->set_rxnfc(dev, &info);
699 static noinline_for_stack int ethtool_get_rxnfc(struct net_device *dev,
700 u32 cmd, void __user *useraddr)
702 struct ethtool_rxnfc info;
703 size_t info_size = sizeof(info);
704 const struct ethtool_ops *ops = dev->ethtool_ops;
706 void *rule_buf = NULL;
711 /* struct ethtool_rxnfc was originally defined for
712 * ETHTOOL_{G,S}RXFH with only the cmd, flow_type and data
713 * members. User-space might still be using that
715 if (cmd == ETHTOOL_GRXFH)
716 info_size = (offsetof(struct ethtool_rxnfc, data) +
719 if (copy_from_user(&info, useraddr, info_size))
722 if (info.cmd == ETHTOOL_GRXCLSRLALL) {
723 if (info.rule_cnt > 0) {
724 if (info.rule_cnt <= KMALLOC_MAX_SIZE / sizeof(u32))
725 rule_buf = kzalloc(info.rule_cnt * sizeof(u32),
732 ret = ops->get_rxnfc(dev, &info, rule_buf);
737 if (copy_to_user(useraddr, &info, info_size))
741 useraddr += offsetof(struct ethtool_rxnfc, rule_locs);
742 if (copy_to_user(useraddr, rule_buf,
743 info.rule_cnt * sizeof(u32)))
754 static noinline_for_stack int ethtool_get_rxfh_indir(struct net_device *dev,
755 void __user *useraddr)
757 struct ethtool_rxfh_indir *indir;
762 if (!dev->ethtool_ops->get_rxfh_indir)
765 if (copy_from_user(&table_size,
766 useraddr + offsetof(struct ethtool_rxfh_indir, size),
771 (KMALLOC_MAX_SIZE - sizeof(*indir)) / sizeof(*indir->ring_index))
773 full_size = sizeof(*indir) + sizeof(*indir->ring_index) * table_size;
774 indir = kzalloc(full_size, GFP_USER);
778 indir->cmd = ETHTOOL_GRXFHINDIR;
779 indir->size = table_size;
780 ret = dev->ethtool_ops->get_rxfh_indir(dev, indir);
784 if (copy_to_user(useraddr, indir, full_size))
792 static noinline_for_stack int ethtool_set_rxfh_indir(struct net_device *dev,
793 void __user *useraddr)
795 struct ethtool_rxfh_indir *indir;
800 if (!dev->ethtool_ops->set_rxfh_indir)
803 if (copy_from_user(&table_size,
804 useraddr + offsetof(struct ethtool_rxfh_indir, size),
809 (KMALLOC_MAX_SIZE - sizeof(*indir)) / sizeof(*indir->ring_index))
811 full_size = sizeof(*indir) + sizeof(*indir->ring_index) * table_size;
812 indir = kmalloc(full_size, GFP_USER);
816 if (copy_from_user(indir, useraddr, full_size)) {
821 ret = dev->ethtool_ops->set_rxfh_indir(dev, indir);
828 static void __rx_ntuple_filter_add(struct ethtool_rx_ntuple_list *list,
829 struct ethtool_rx_ntuple_flow_spec *spec,
830 struct ethtool_rx_ntuple_flow_spec_container *fsc)
833 /* don't add filters forever */
834 if (list->count >= ETHTOOL_MAX_NTUPLE_LIST_ENTRY) {
835 /* free the container */
840 /* Copy the whole filter over */
841 fsc->fs.flow_type = spec->flow_type;
842 memcpy(&fsc->fs.h_u, &spec->h_u, sizeof(spec->h_u));
843 memcpy(&fsc->fs.m_u, &spec->m_u, sizeof(spec->m_u));
845 fsc->fs.vlan_tag = spec->vlan_tag;
846 fsc->fs.vlan_tag_mask = spec->vlan_tag_mask;
847 fsc->fs.data = spec->data;
848 fsc->fs.data_mask = spec->data_mask;
849 fsc->fs.action = spec->action;
851 /* add to the list */
852 list_add_tail_rcu(&fsc->list, &list->list);
857 * ethtool does not (or did not) set masks for flow parameters that are
858 * not specified, so if both value and mask are 0 then this must be
859 * treated as equivalent to a mask with all bits set. Implement that
860 * here rather than in drivers.
862 static void rx_ntuple_fix_masks(struct ethtool_rx_ntuple_flow_spec *fs)
864 struct ethtool_tcpip4_spec *entry = &fs->h_u.tcp_ip4_spec;
865 struct ethtool_tcpip4_spec *mask = &fs->m_u.tcp_ip4_spec;
867 if (fs->flow_type != TCP_V4_FLOW &&
868 fs->flow_type != UDP_V4_FLOW &&
869 fs->flow_type != SCTP_V4_FLOW)
872 if (!(entry->ip4src | mask->ip4src))
873 mask->ip4src = htonl(0xffffffff);
874 if (!(entry->ip4dst | mask->ip4dst))
875 mask->ip4dst = htonl(0xffffffff);
876 if (!(entry->psrc | mask->psrc))
877 mask->psrc = htons(0xffff);
878 if (!(entry->pdst | mask->pdst))
879 mask->pdst = htons(0xffff);
880 if (!(entry->tos | mask->tos))
882 if (!(fs->vlan_tag | fs->vlan_tag_mask))
883 fs->vlan_tag_mask = 0xffff;
884 if (!(fs->data | fs->data_mask))
885 fs->data_mask = 0xffffffffffffffffULL;
888 static noinline_for_stack int ethtool_set_rx_ntuple(struct net_device *dev,
889 void __user *useraddr)
891 struct ethtool_rx_ntuple cmd;
892 const struct ethtool_ops *ops = dev->ethtool_ops;
893 struct ethtool_rx_ntuple_flow_spec_container *fsc = NULL;
896 if (!(dev->features & NETIF_F_NTUPLE))
899 if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
902 rx_ntuple_fix_masks(&cmd.fs);
905 * Cache filter in dev struct for GET operation only if
906 * the underlying driver doesn't have its own GET operation, and
907 * only if the filter was added successfully. First make sure we
908 * can allocate the filter, then continue if successful.
910 if (!ops->get_rx_ntuple) {
911 fsc = kmalloc(sizeof(*fsc), GFP_ATOMIC);
916 ret = ops->set_rx_ntuple(dev, &cmd);
922 if (!ops->get_rx_ntuple)
923 __rx_ntuple_filter_add(&dev->ethtool_ntuple_list, &cmd.fs, fsc);
928 static int ethtool_get_rx_ntuple(struct net_device *dev, void __user *useraddr)
930 struct ethtool_gstrings gstrings;
931 const struct ethtool_ops *ops = dev->ethtool_ops;
932 struct ethtool_rx_ntuple_flow_spec_container *fsc;
935 int ret, i, num_strings = 0;
937 if (!ops->get_sset_count)
940 if (copy_from_user(&gstrings, useraddr, sizeof(gstrings)))
943 ret = ops->get_sset_count(dev, gstrings.string_set);
949 data = kzalloc(gstrings.len * ETH_GSTRING_LEN, GFP_USER);
953 if (ops->get_rx_ntuple) {
954 /* driver-specific filter grab */
955 ret = ops->get_rx_ntuple(dev, gstrings.string_set, data);
959 /* default ethtool filter grab */
962 list_for_each_entry(fsc, &dev->ethtool_ntuple_list.list, list) {
963 sprintf(p, "Filter %d:\n", i);
964 p += ETH_GSTRING_LEN;
967 switch (fsc->fs.flow_type) {
969 sprintf(p, "\tFlow Type: TCP\n");
970 p += ETH_GSTRING_LEN;
974 sprintf(p, "\tFlow Type: UDP\n");
975 p += ETH_GSTRING_LEN;
979 sprintf(p, "\tFlow Type: SCTP\n");
980 p += ETH_GSTRING_LEN;
984 sprintf(p, "\tFlow Type: AH ESP\n");
985 p += ETH_GSTRING_LEN;
989 sprintf(p, "\tFlow Type: ESP\n");
990 p += ETH_GSTRING_LEN;
994 sprintf(p, "\tFlow Type: Raw IP\n");
995 p += ETH_GSTRING_LEN;
999 sprintf(p, "\tFlow Type: IPv4\n");
1000 p += ETH_GSTRING_LEN;
1004 sprintf(p, "\tFlow Type: Unknown\n");
1005 p += ETH_GSTRING_LEN;
1007 goto unknown_filter;
1010 /* now the rest of the filters */
1011 switch (fsc->fs.flow_type) {
1015 sprintf(p, "\tSrc IP addr: 0x%x\n",
1016 fsc->fs.h_u.tcp_ip4_spec.ip4src);
1017 p += ETH_GSTRING_LEN;
1019 sprintf(p, "\tSrc IP mask: 0x%x\n",
1020 fsc->fs.m_u.tcp_ip4_spec.ip4src);
1021 p += ETH_GSTRING_LEN;
1023 sprintf(p, "\tDest IP addr: 0x%x\n",
1024 fsc->fs.h_u.tcp_ip4_spec.ip4dst);
1025 p += ETH_GSTRING_LEN;
1027 sprintf(p, "\tDest IP mask: 0x%x\n",
1028 fsc->fs.m_u.tcp_ip4_spec.ip4dst);
1029 p += ETH_GSTRING_LEN;
1031 sprintf(p, "\tSrc Port: %d, mask: 0x%x\n",
1032 fsc->fs.h_u.tcp_ip4_spec.psrc,
1033 fsc->fs.m_u.tcp_ip4_spec.psrc);
1034 p += ETH_GSTRING_LEN;
1036 sprintf(p, "\tDest Port: %d, mask: 0x%x\n",
1037 fsc->fs.h_u.tcp_ip4_spec.pdst,
1038 fsc->fs.m_u.tcp_ip4_spec.pdst);
1039 p += ETH_GSTRING_LEN;
1041 sprintf(p, "\tTOS: %d, mask: 0x%x\n",
1042 fsc->fs.h_u.tcp_ip4_spec.tos,
1043 fsc->fs.m_u.tcp_ip4_spec.tos);
1044 p += ETH_GSTRING_LEN;
1047 case AH_ESP_V4_FLOW:
1049 sprintf(p, "\tSrc IP addr: 0x%x\n",
1050 fsc->fs.h_u.ah_ip4_spec.ip4src);
1051 p += ETH_GSTRING_LEN;
1053 sprintf(p, "\tSrc IP mask: 0x%x\n",
1054 fsc->fs.m_u.ah_ip4_spec.ip4src);
1055 p += ETH_GSTRING_LEN;
1057 sprintf(p, "\tDest IP addr: 0x%x\n",
1058 fsc->fs.h_u.ah_ip4_spec.ip4dst);
1059 p += ETH_GSTRING_LEN;
1061 sprintf(p, "\tDest IP mask: 0x%x\n",
1062 fsc->fs.m_u.ah_ip4_spec.ip4dst);
1063 p += ETH_GSTRING_LEN;
1065 sprintf(p, "\tSPI: %d, mask: 0x%x\n",
1066 fsc->fs.h_u.ah_ip4_spec.spi,
1067 fsc->fs.m_u.ah_ip4_spec.spi);
1068 p += ETH_GSTRING_LEN;
1070 sprintf(p, "\tTOS: %d, mask: 0x%x\n",
1071 fsc->fs.h_u.ah_ip4_spec.tos,
1072 fsc->fs.m_u.ah_ip4_spec.tos);
1073 p += ETH_GSTRING_LEN;
1077 sprintf(p, "\tSrc IP addr: 0x%x\n",
1078 fsc->fs.h_u.usr_ip4_spec.ip4src);
1079 p += ETH_GSTRING_LEN;
1081 sprintf(p, "\tSrc IP mask: 0x%x\n",
1082 fsc->fs.m_u.usr_ip4_spec.ip4src);
1083 p += ETH_GSTRING_LEN;
1085 sprintf(p, "\tDest IP addr: 0x%x\n",
1086 fsc->fs.h_u.usr_ip4_spec.ip4dst);
1087 p += ETH_GSTRING_LEN;
1089 sprintf(p, "\tDest IP mask: 0x%x\n",
1090 fsc->fs.m_u.usr_ip4_spec.ip4dst);
1091 p += ETH_GSTRING_LEN;
1095 sprintf(p, "\tSrc IP addr: 0x%x\n",
1096 fsc->fs.h_u.usr_ip4_spec.ip4src);
1097 p += ETH_GSTRING_LEN;
1099 sprintf(p, "\tSrc IP mask: 0x%x\n",
1100 fsc->fs.m_u.usr_ip4_spec.ip4src);
1101 p += ETH_GSTRING_LEN;
1103 sprintf(p, "\tDest IP addr: 0x%x\n",
1104 fsc->fs.h_u.usr_ip4_spec.ip4dst);
1105 p += ETH_GSTRING_LEN;
1107 sprintf(p, "\tDest IP mask: 0x%x\n",
1108 fsc->fs.m_u.usr_ip4_spec.ip4dst);
1109 p += ETH_GSTRING_LEN;
1111 sprintf(p, "\tL4 bytes: 0x%x, mask: 0x%x\n",
1112 fsc->fs.h_u.usr_ip4_spec.l4_4_bytes,
1113 fsc->fs.m_u.usr_ip4_spec.l4_4_bytes);
1114 p += ETH_GSTRING_LEN;
1116 sprintf(p, "\tTOS: %d, mask: 0x%x\n",
1117 fsc->fs.h_u.usr_ip4_spec.tos,
1118 fsc->fs.m_u.usr_ip4_spec.tos);
1119 p += ETH_GSTRING_LEN;
1121 sprintf(p, "\tIP Version: %d, mask: 0x%x\n",
1122 fsc->fs.h_u.usr_ip4_spec.ip_ver,
1123 fsc->fs.m_u.usr_ip4_spec.ip_ver);
1124 p += ETH_GSTRING_LEN;
1126 sprintf(p, "\tProtocol: %d, mask: 0x%x\n",
1127 fsc->fs.h_u.usr_ip4_spec.proto,
1128 fsc->fs.m_u.usr_ip4_spec.proto);
1129 p += ETH_GSTRING_LEN;
1133 sprintf(p, "\tVLAN: %d, mask: 0x%x\n",
1134 fsc->fs.vlan_tag, fsc->fs.vlan_tag_mask);
1135 p += ETH_GSTRING_LEN;
1137 sprintf(p, "\tUser-defined: 0x%Lx\n", fsc->fs.data);
1138 p += ETH_GSTRING_LEN;
1140 sprintf(p, "\tUser-defined mask: 0x%Lx\n", fsc->fs.data_mask);
1141 p += ETH_GSTRING_LEN;
1143 if (fsc->fs.action == ETHTOOL_RXNTUPLE_ACTION_DROP)
1144 sprintf(p, "\tAction: Drop\n");
1146 sprintf(p, "\tAction: Direct to queue %d\n",
1148 p += ETH_GSTRING_LEN;
1154 /* indicate to userspace how many strings we actually have */
1155 gstrings.len = num_strings;
1157 if (copy_to_user(useraddr, &gstrings, sizeof(gstrings)))
1159 useraddr += sizeof(gstrings);
1160 if (copy_to_user(useraddr, data, gstrings.len * ETH_GSTRING_LEN))
1169 static int ethtool_get_regs(struct net_device *dev, char __user *useraddr)
1171 struct ethtool_regs regs;
1172 const struct ethtool_ops *ops = dev->ethtool_ops;
1176 if (!ops->get_regs || !ops->get_regs_len)
1179 if (copy_from_user(®s, useraddr, sizeof(regs)))
1182 reglen = ops->get_regs_len(dev);
1183 if (regs.len > reglen)
1186 regbuf = vzalloc(reglen);
1190 ops->get_regs(dev, ®s, regbuf);
1193 if (copy_to_user(useraddr, ®s, sizeof(regs)))
1195 useraddr += offsetof(struct ethtool_regs, data);
1196 if (copy_to_user(useraddr, regbuf, regs.len))
1205 static int ethtool_reset(struct net_device *dev, char __user *useraddr)
1207 struct ethtool_value reset;
1210 if (!dev->ethtool_ops->reset)
1213 if (copy_from_user(&reset, useraddr, sizeof(reset)))
1216 ret = dev->ethtool_ops->reset(dev, &reset.data);
1220 if (copy_to_user(useraddr, &reset, sizeof(reset)))
1225 static int ethtool_get_wol(struct net_device *dev, char __user *useraddr)
1227 struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL };
1229 if (!dev->ethtool_ops->get_wol)
1232 dev->ethtool_ops->get_wol(dev, &wol);
1234 if (copy_to_user(useraddr, &wol, sizeof(wol)))
1239 static int ethtool_set_wol(struct net_device *dev, char __user *useraddr)
1241 struct ethtool_wolinfo wol;
1243 if (!dev->ethtool_ops->set_wol)
1246 if (copy_from_user(&wol, useraddr, sizeof(wol)))
1249 return dev->ethtool_ops->set_wol(dev, &wol);
1252 static int ethtool_nway_reset(struct net_device *dev)
1254 if (!dev->ethtool_ops->nway_reset)
1257 return dev->ethtool_ops->nway_reset(dev);
1260 static int ethtool_get_link(struct net_device *dev, char __user *useraddr)
1262 struct ethtool_value edata = { .cmd = ETHTOOL_GLINK };
1264 if (!dev->ethtool_ops->get_link)
1267 edata.data = netif_running(dev) && dev->ethtool_ops->get_link(dev);
1269 if (copy_to_user(useraddr, &edata, sizeof(edata)))
1274 static int ethtool_get_eeprom(struct net_device *dev, void __user *useraddr)
1276 struct ethtool_eeprom eeprom;
1277 const struct ethtool_ops *ops = dev->ethtool_ops;
1278 void __user *userbuf = useraddr + sizeof(eeprom);
1279 u32 bytes_remaining;
1283 if (!ops->get_eeprom || !ops->get_eeprom_len)
1286 if (copy_from_user(&eeprom, useraddr, sizeof(eeprom)))
1289 /* Check for wrap and zero */
1290 if (eeprom.offset + eeprom.len <= eeprom.offset)
1293 /* Check for exceeding total eeprom len */
1294 if (eeprom.offset + eeprom.len > ops->get_eeprom_len(dev))
1297 data = kmalloc(PAGE_SIZE, GFP_USER);
1301 bytes_remaining = eeprom.len;
1302 while (bytes_remaining > 0) {
1303 eeprom.len = min(bytes_remaining, (u32)PAGE_SIZE);
1305 ret = ops->get_eeprom(dev, &eeprom, data);
1308 if (copy_to_user(userbuf, data, eeprom.len)) {
1312 userbuf += eeprom.len;
1313 eeprom.offset += eeprom.len;
1314 bytes_remaining -= eeprom.len;
1317 eeprom.len = userbuf - (useraddr + sizeof(eeprom));
1318 eeprom.offset -= eeprom.len;
1319 if (copy_to_user(useraddr, &eeprom, sizeof(eeprom)))
1326 static int ethtool_set_eeprom(struct net_device *dev, void __user *useraddr)
1328 struct ethtool_eeprom eeprom;
1329 const struct ethtool_ops *ops = dev->ethtool_ops;
1330 void __user *userbuf = useraddr + sizeof(eeprom);
1331 u32 bytes_remaining;
1335 if (!ops->set_eeprom || !ops->get_eeprom_len)
1338 if (copy_from_user(&eeprom, useraddr, sizeof(eeprom)))
1341 /* Check for wrap and zero */
1342 if (eeprom.offset + eeprom.len <= eeprom.offset)
1345 /* Check for exceeding total eeprom len */
1346 if (eeprom.offset + eeprom.len > ops->get_eeprom_len(dev))
1349 data = kmalloc(PAGE_SIZE, GFP_USER);
1353 bytes_remaining = eeprom.len;
1354 while (bytes_remaining > 0) {
1355 eeprom.len = min(bytes_remaining, (u32)PAGE_SIZE);
1357 if (copy_from_user(data, userbuf, eeprom.len)) {
1361 ret = ops->set_eeprom(dev, &eeprom, data);
1364 userbuf += eeprom.len;
1365 eeprom.offset += eeprom.len;
1366 bytes_remaining -= eeprom.len;
1373 static noinline_for_stack int ethtool_get_coalesce(struct net_device *dev,
1374 void __user *useraddr)
1376 struct ethtool_coalesce coalesce = { .cmd = ETHTOOL_GCOALESCE };
1378 if (!dev->ethtool_ops->get_coalesce)
1381 dev->ethtool_ops->get_coalesce(dev, &coalesce);
1383 if (copy_to_user(useraddr, &coalesce, sizeof(coalesce)))
1388 static noinline_for_stack int ethtool_set_coalesce(struct net_device *dev,
1389 void __user *useraddr)
1391 struct ethtool_coalesce coalesce;
1393 if (!dev->ethtool_ops->set_coalesce)
1396 if (copy_from_user(&coalesce, useraddr, sizeof(coalesce)))
1399 return dev->ethtool_ops->set_coalesce(dev, &coalesce);
1402 static int ethtool_get_ringparam(struct net_device *dev, void __user *useraddr)
1404 struct ethtool_ringparam ringparam = { .cmd = ETHTOOL_GRINGPARAM };
1406 if (!dev->ethtool_ops->get_ringparam)
1409 dev->ethtool_ops->get_ringparam(dev, &ringparam);
1411 if (copy_to_user(useraddr, &ringparam, sizeof(ringparam)))
1416 static int ethtool_set_ringparam(struct net_device *dev, void __user *useraddr)
1418 struct ethtool_ringparam ringparam;
1420 if (!dev->ethtool_ops->set_ringparam)
1423 if (copy_from_user(&ringparam, useraddr, sizeof(ringparam)))
1426 return dev->ethtool_ops->set_ringparam(dev, &ringparam);
1429 static int ethtool_get_pauseparam(struct net_device *dev, void __user *useraddr)
1431 struct ethtool_pauseparam pauseparam = { ETHTOOL_GPAUSEPARAM };
1433 if (!dev->ethtool_ops->get_pauseparam)
1436 dev->ethtool_ops->get_pauseparam(dev, &pauseparam);
1438 if (copy_to_user(useraddr, &pauseparam, sizeof(pauseparam)))
1443 static int ethtool_set_pauseparam(struct net_device *dev, void __user *useraddr)
1445 struct ethtool_pauseparam pauseparam;
1447 if (!dev->ethtool_ops->set_pauseparam)
1450 if (copy_from_user(&pauseparam, useraddr, sizeof(pauseparam)))
1453 return dev->ethtool_ops->set_pauseparam(dev, &pauseparam);
1456 static int __ethtool_set_sg(struct net_device *dev, u32 data)
1460 if (!dev->ethtool_ops->set_sg)
1463 if (data && !(dev->features & NETIF_F_ALL_CSUM))
1466 if (!data && dev->ethtool_ops->set_tso) {
1467 err = dev->ethtool_ops->set_tso(dev, 0);
1472 if (!data && dev->ethtool_ops->set_ufo) {
1473 err = dev->ethtool_ops->set_ufo(dev, 0);
1477 return dev->ethtool_ops->set_sg(dev, data);
1480 static int __ethtool_set_tx_csum(struct net_device *dev, u32 data)
1484 if (!dev->ethtool_ops->set_tx_csum)
1487 if (!data && dev->ethtool_ops->set_sg) {
1488 err = __ethtool_set_sg(dev, 0);
1493 return dev->ethtool_ops->set_tx_csum(dev, data);
1496 static int __ethtool_set_rx_csum(struct net_device *dev, u32 data)
1498 if (!dev->ethtool_ops->set_rx_csum)
1502 dev->features &= ~NETIF_F_GRO;
1504 return dev->ethtool_ops->set_rx_csum(dev, data);
1507 static int __ethtool_set_tso(struct net_device *dev, u32 data)
1509 if (!dev->ethtool_ops->set_tso)
1512 if (data && !(dev->features & NETIF_F_SG))
1515 return dev->ethtool_ops->set_tso(dev, data);
1518 static int __ethtool_set_ufo(struct net_device *dev, u32 data)
1520 if (!dev->ethtool_ops->set_ufo)
1522 if (data && !(dev->features & NETIF_F_SG))
1524 if (data && !((dev->features & NETIF_F_GEN_CSUM) ||
1525 (dev->features & (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM))
1526 == (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM)))
1528 return dev->ethtool_ops->set_ufo(dev, data);
1531 static int ethtool_self_test(struct net_device *dev, char __user *useraddr)
1533 struct ethtool_test test;
1534 const struct ethtool_ops *ops = dev->ethtool_ops;
1538 if (!ops->self_test || !ops->get_sset_count)
1541 test_len = ops->get_sset_count(dev, ETH_SS_TEST);
1544 WARN_ON(test_len == 0);
1546 if (copy_from_user(&test, useraddr, sizeof(test)))
1549 test.len = test_len;
1550 data = kmalloc(test_len * sizeof(u64), GFP_USER);
1554 ops->self_test(dev, &test, data);
1557 if (copy_to_user(useraddr, &test, sizeof(test)))
1559 useraddr += sizeof(test);
1560 if (copy_to_user(useraddr, data, test.len * sizeof(u64)))
1569 static int ethtool_get_strings(struct net_device *dev, void __user *useraddr)
1571 struct ethtool_gstrings gstrings;
1575 if (copy_from_user(&gstrings, useraddr, sizeof(gstrings)))
1578 ret = __ethtool_get_sset_count(dev, gstrings.string_set);
1584 data = kmalloc(gstrings.len * ETH_GSTRING_LEN, GFP_USER);
1588 __ethtool_get_strings(dev, gstrings.string_set, data);
1591 if (copy_to_user(useraddr, &gstrings, sizeof(gstrings)))
1593 useraddr += sizeof(gstrings);
1594 if (copy_to_user(useraddr, data, gstrings.len * ETH_GSTRING_LEN))
1603 static int ethtool_phys_id(struct net_device *dev, void __user *useraddr)
1605 struct ethtool_value id;
1607 if (!dev->ethtool_ops->phys_id)
1610 if (copy_from_user(&id, useraddr, sizeof(id)))
1613 return dev->ethtool_ops->phys_id(dev, id.data);
1616 static int ethtool_get_stats(struct net_device *dev, void __user *useraddr)
1618 struct ethtool_stats stats;
1619 const struct ethtool_ops *ops = dev->ethtool_ops;
1623 if (!ops->get_ethtool_stats || !ops->get_sset_count)
1626 n_stats = ops->get_sset_count(dev, ETH_SS_STATS);
1629 WARN_ON(n_stats == 0);
1631 if (copy_from_user(&stats, useraddr, sizeof(stats)))
1634 stats.n_stats = n_stats;
1635 data = kmalloc(n_stats * sizeof(u64), GFP_USER);
1639 ops->get_ethtool_stats(dev, &stats, data);
1642 if (copy_to_user(useraddr, &stats, sizeof(stats)))
1644 useraddr += sizeof(stats);
1645 if (copy_to_user(useraddr, data, stats.n_stats * sizeof(u64)))
1654 static int ethtool_get_perm_addr(struct net_device *dev, void __user *useraddr)
1656 struct ethtool_perm_addr epaddr;
1658 if (copy_from_user(&epaddr, useraddr, sizeof(epaddr)))
1661 if (epaddr.size < dev->addr_len)
1663 epaddr.size = dev->addr_len;
1665 if (copy_to_user(useraddr, &epaddr, sizeof(epaddr)))
1667 useraddr += sizeof(epaddr);
1668 if (copy_to_user(useraddr, dev->perm_addr, epaddr.size))
1673 static int ethtool_get_value(struct net_device *dev, char __user *useraddr,
1674 u32 cmd, u32 (*actor)(struct net_device *))
1676 struct ethtool_value edata = { .cmd = cmd };
1681 edata.data = actor(dev);
1683 if (copy_to_user(useraddr, &edata, sizeof(edata)))
1688 static int ethtool_set_value_void(struct net_device *dev, char __user *useraddr,
1689 void (*actor)(struct net_device *, u32))
1691 struct ethtool_value edata;
1696 if (copy_from_user(&edata, useraddr, sizeof(edata)))
1699 actor(dev, edata.data);
1703 static int ethtool_set_value(struct net_device *dev, char __user *useraddr,
1704 int (*actor)(struct net_device *, u32))
1706 struct ethtool_value edata;
1711 if (copy_from_user(&edata, useraddr, sizeof(edata)))
1714 return actor(dev, edata.data);
1717 static noinline_for_stack int ethtool_flash_device(struct net_device *dev,
1718 char __user *useraddr)
1720 struct ethtool_flash efl;
1722 if (copy_from_user(&efl, useraddr, sizeof(efl)))
1725 if (!dev->ethtool_ops->flash_device)
1728 return dev->ethtool_ops->flash_device(dev, &efl);
1731 /* The main entry point in this file. Called from net/core/dev.c */
1733 int dev_ethtool(struct net *net, struct ifreq *ifr)
1735 struct net_device *dev = __dev_get_by_name(net, ifr->ifr_name);
1736 void __user *useraddr = ifr->ifr_data;
1741 if (!dev || !netif_device_present(dev))
1744 if (copy_from_user(ðcmd, useraddr, sizeof(ethcmd)))
1747 if (!dev->ethtool_ops) {
1748 /* ETHTOOL_GDRVINFO does not require any driver support.
1749 * It is also unprivileged and does not change anything,
1750 * so we can take a shortcut to it. */
1751 if (ethcmd == ETHTOOL_GDRVINFO)
1752 return ethtool_get_drvinfo(dev, useraddr);
1757 /* Allow some commands to be done by anyone */
1760 case ETHTOOL_GDRVINFO:
1761 case ETHTOOL_GMSGLVL:
1762 case ETHTOOL_GCOALESCE:
1763 case ETHTOOL_GRINGPARAM:
1764 case ETHTOOL_GPAUSEPARAM:
1765 case ETHTOOL_GRXCSUM:
1766 case ETHTOOL_GTXCSUM:
1768 case ETHTOOL_GSTRINGS:
1770 case ETHTOOL_GPERMADDR:
1774 case ETHTOOL_GFLAGS:
1775 case ETHTOOL_GPFLAGS:
1777 case ETHTOOL_GRXRINGS:
1778 case ETHTOOL_GRXCLSRLCNT:
1779 case ETHTOOL_GRXCLSRULE:
1780 case ETHTOOL_GRXCLSRLALL:
1781 case ETHTOOL_GFEATURES:
1784 if (!capable(CAP_NET_ADMIN))
1788 if (dev->ethtool_ops->begin) {
1789 rc = dev->ethtool_ops->begin(dev);
1793 old_features = dev->features;
1797 rc = ethtool_get_settings(dev, useraddr);
1800 rc = ethtool_set_settings(dev, useraddr);
1802 case ETHTOOL_GDRVINFO:
1803 rc = ethtool_get_drvinfo(dev, useraddr);
1806 rc = ethtool_get_regs(dev, useraddr);
1809 rc = ethtool_get_wol(dev, useraddr);
1812 rc = ethtool_set_wol(dev, useraddr);
1814 case ETHTOOL_GMSGLVL:
1815 rc = ethtool_get_value(dev, useraddr, ethcmd,
1816 dev->ethtool_ops->get_msglevel);
1818 case ETHTOOL_SMSGLVL:
1819 rc = ethtool_set_value_void(dev, useraddr,
1820 dev->ethtool_ops->set_msglevel);
1822 case ETHTOOL_NWAY_RST:
1823 rc = ethtool_nway_reset(dev);
1826 rc = ethtool_get_link(dev, useraddr);
1828 case ETHTOOL_GEEPROM:
1829 rc = ethtool_get_eeprom(dev, useraddr);
1831 case ETHTOOL_SEEPROM:
1832 rc = ethtool_set_eeprom(dev, useraddr);
1834 case ETHTOOL_GCOALESCE:
1835 rc = ethtool_get_coalesce(dev, useraddr);
1837 case ETHTOOL_SCOALESCE:
1838 rc = ethtool_set_coalesce(dev, useraddr);
1840 case ETHTOOL_GRINGPARAM:
1841 rc = ethtool_get_ringparam(dev, useraddr);
1843 case ETHTOOL_SRINGPARAM:
1844 rc = ethtool_set_ringparam(dev, useraddr);
1846 case ETHTOOL_GPAUSEPARAM:
1847 rc = ethtool_get_pauseparam(dev, useraddr);
1849 case ETHTOOL_SPAUSEPARAM:
1850 rc = ethtool_set_pauseparam(dev, useraddr);
1853 rc = ethtool_self_test(dev, useraddr);
1855 case ETHTOOL_GSTRINGS:
1856 rc = ethtool_get_strings(dev, useraddr);
1858 case ETHTOOL_PHYS_ID:
1859 rc = ethtool_phys_id(dev, useraddr);
1861 case ETHTOOL_GSTATS:
1862 rc = ethtool_get_stats(dev, useraddr);
1864 case ETHTOOL_GPERMADDR:
1865 rc = ethtool_get_perm_addr(dev, useraddr);
1867 case ETHTOOL_GFLAGS:
1868 rc = ethtool_get_value(dev, useraddr, ethcmd,
1869 (dev->ethtool_ops->get_flags ?
1870 dev->ethtool_ops->get_flags :
1871 ethtool_op_get_flags));
1873 case ETHTOOL_SFLAGS:
1874 rc = ethtool_set_value(dev, useraddr, __ethtool_set_flags);
1876 case ETHTOOL_GPFLAGS:
1877 rc = ethtool_get_value(dev, useraddr, ethcmd,
1878 dev->ethtool_ops->get_priv_flags);
1880 case ETHTOOL_SPFLAGS:
1881 rc = ethtool_set_value(dev, useraddr,
1882 dev->ethtool_ops->set_priv_flags);
1885 case ETHTOOL_GRXRINGS:
1886 case ETHTOOL_GRXCLSRLCNT:
1887 case ETHTOOL_GRXCLSRULE:
1888 case ETHTOOL_GRXCLSRLALL:
1889 rc = ethtool_get_rxnfc(dev, ethcmd, useraddr);
1892 case ETHTOOL_SRXCLSRLDEL:
1893 case ETHTOOL_SRXCLSRLINS:
1894 rc = ethtool_set_rxnfc(dev, ethcmd, useraddr);
1896 case ETHTOOL_FLASHDEV:
1897 rc = ethtool_flash_device(dev, useraddr);
1900 rc = ethtool_reset(dev, useraddr);
1902 case ETHTOOL_SRXNTUPLE:
1903 rc = ethtool_set_rx_ntuple(dev, useraddr);
1905 case ETHTOOL_GRXNTUPLE:
1906 rc = ethtool_get_rx_ntuple(dev, useraddr);
1908 case ETHTOOL_GSSET_INFO:
1909 rc = ethtool_get_sset_info(dev, useraddr);
1911 case ETHTOOL_GRXFHINDIR:
1912 rc = ethtool_get_rxfh_indir(dev, useraddr);
1914 case ETHTOOL_SRXFHINDIR:
1915 rc = ethtool_set_rxfh_indir(dev, useraddr);
1917 case ETHTOOL_GFEATURES:
1918 rc = ethtool_get_features(dev, useraddr);
1920 case ETHTOOL_SFEATURES:
1921 rc = ethtool_set_features(dev, useraddr);
1923 case ETHTOOL_GTXCSUM:
1924 case ETHTOOL_GRXCSUM:
1930 rc = ethtool_get_one_feature(dev, useraddr, ethcmd);
1932 case ETHTOOL_STXCSUM:
1933 case ETHTOOL_SRXCSUM:
1939 rc = ethtool_set_one_feature(dev, useraddr, ethcmd);
1945 if (dev->ethtool_ops->complete)
1946 dev->ethtool_ops->complete(dev);
1948 if (old_features != dev->features)
1949 netdev_features_change(dev);