1 // SPDX-License-Identifier: GPL-2.0-only
4 #include <linux/ethtool_netlink.h>
5 #include <linux/pm_runtime.h>
8 static struct genl_family ethtool_genl_family;
10 static bool ethnl_ok __read_mostly;
11 static u32 ethnl_bcast_seq;
13 #define ETHTOOL_FLAGS_BASIC (ETHTOOL_FLAG_COMPACT_BITSETS | \
14 ETHTOOL_FLAG_OMIT_REPLY)
15 #define ETHTOOL_FLAGS_STATS (ETHTOOL_FLAGS_BASIC | ETHTOOL_FLAG_STATS)
17 const struct nla_policy ethnl_header_policy[] = {
18 [ETHTOOL_A_HEADER_DEV_INDEX] = { .type = NLA_U32 },
19 [ETHTOOL_A_HEADER_DEV_NAME] = { .type = NLA_NUL_STRING,
20 .len = ALTIFNAMSIZ - 1 },
21 [ETHTOOL_A_HEADER_FLAGS] = NLA_POLICY_MASK(NLA_U32,
25 const struct nla_policy ethnl_header_policy_stats[] = {
26 [ETHTOOL_A_HEADER_DEV_INDEX] = { .type = NLA_U32 },
27 [ETHTOOL_A_HEADER_DEV_NAME] = { .type = NLA_NUL_STRING,
28 .len = ALTIFNAMSIZ - 1 },
29 [ETHTOOL_A_HEADER_FLAGS] = NLA_POLICY_MASK(NLA_U32,
33 int ethnl_ops_begin(struct net_device *dev)
41 pm_runtime_get_sync(dev->dev.parent);
43 if (!netif_device_present(dev) ||
44 dev->reg_state == NETREG_UNREGISTERING) {
49 if (dev->ethtool_ops->begin) {
50 ret = dev->ethtool_ops->begin(dev);
58 pm_runtime_put(dev->dev.parent);
63 void ethnl_ops_complete(struct net_device *dev)
65 if (dev->ethtool_ops->complete)
66 dev->ethtool_ops->complete(dev);
69 pm_runtime_put(dev->dev.parent);
73 * ethnl_parse_header_dev_get() - parse request header
74 * @req_info: structure to put results into
75 * @header: nest attribute with request header
77 * @extack: netlink extack for error reporting
78 * @require_dev: fail if no device identified in header
80 * Parse request header in nested attribute @nest and puts results into
81 * the structure pointed to by @req_info. Extack from @info is used for error
82 * reporting. If req_info->dev is not null on return, reference to it has
83 * been taken. If error is returned, *req_info is null initialized and no
86 * Return: 0 on success or negative error code
88 int ethnl_parse_header_dev_get(struct ethnl_req_info *req_info,
89 const struct nlattr *header, struct net *net,
90 struct netlink_ext_ack *extack, bool require_dev)
92 struct nlattr *tb[ARRAY_SIZE(ethnl_header_policy)];
93 const struct nlattr *devname_attr;
94 struct net_device *dev = NULL;
99 NL_SET_ERR_MSG(extack, "request header missing");
102 /* No validation here, command policy should have a nested policy set
103 * for the header, therefore validation should have already been done.
105 ret = nla_parse_nested(tb, ARRAY_SIZE(ethnl_header_policy) - 1, header,
109 if (tb[ETHTOOL_A_HEADER_FLAGS])
110 flags = nla_get_u32(tb[ETHTOOL_A_HEADER_FLAGS]);
112 devname_attr = tb[ETHTOOL_A_HEADER_DEV_NAME];
113 if (tb[ETHTOOL_A_HEADER_DEV_INDEX]) {
114 u32 ifindex = nla_get_u32(tb[ETHTOOL_A_HEADER_DEV_INDEX]);
116 dev = dev_get_by_index(net, ifindex);
118 NL_SET_ERR_MSG_ATTR(extack,
119 tb[ETHTOOL_A_HEADER_DEV_INDEX],
120 "no device matches ifindex");
123 /* if both ifindex and ifname are passed, they must match */
125 strncmp(dev->name, nla_data(devname_attr), IFNAMSIZ)) {
127 NL_SET_ERR_MSG_ATTR(extack, header,
128 "ifindex and name do not match");
131 } else if (devname_attr) {
132 dev = dev_get_by_name(net, nla_data(devname_attr));
134 NL_SET_ERR_MSG_ATTR(extack, devname_attr,
135 "no device matches name");
138 } else if (require_dev) {
139 NL_SET_ERR_MSG_ATTR(extack, header,
140 "neither ifindex nor name specified");
145 req_info->flags = flags;
150 * ethnl_fill_reply_header() - Put common header into a reply message
151 * @skb: skb with the message
152 * @dev: network device to describe in header
153 * @attrtype: attribute type to use for the nest
155 * Create a nested attribute with attributes describing given network device.
157 * Return: 0 on success, error value (-EMSGSIZE only) on error
159 int ethnl_fill_reply_header(struct sk_buff *skb, struct net_device *dev,
166 nest = nla_nest_start(skb, attrtype);
170 if (nla_put_u32(skb, ETHTOOL_A_HEADER_DEV_INDEX, (u32)dev->ifindex) ||
171 nla_put_string(skb, ETHTOOL_A_HEADER_DEV_NAME, dev->name))
172 goto nla_put_failure;
173 /* If more attributes are put into reply header, ethnl_header_size()
174 * must be updated to account for them.
177 nla_nest_end(skb, nest);
181 nla_nest_cancel(skb, nest);
186 * ethnl_reply_init() - Create skb for a reply and fill device identification
187 * @payload: payload length (without netlink and genetlink header)
188 * @dev: device the reply is about (may be null)
189 * @cmd: ETHTOOL_MSG_* message type for reply
190 * @hdr_attrtype: attribute type for common header
191 * @info: genetlink info of the received packet we respond to
192 * @ehdrp: place to store payload pointer returned by genlmsg_new()
194 * Return: pointer to allocated skb on success, NULL on error
196 struct sk_buff *ethnl_reply_init(size_t payload, struct net_device *dev, u8 cmd,
197 u16 hdr_attrtype, struct genl_info *info,
202 skb = genlmsg_new(payload, GFP_KERNEL);
205 *ehdrp = genlmsg_put_reply(skb, info, ðtool_genl_family, 0, cmd);
212 ret = ethnl_fill_reply_header(skb, dev, hdr_attrtype);
222 GENL_SET_ERR_MSG(info, "failed to setup reply message");
226 void *ethnl_dump_put(struct sk_buff *skb, struct netlink_callback *cb, u8 cmd)
228 return genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq,
229 ðtool_genl_family, 0, cmd);
232 void *ethnl_bcastmsg_put(struct sk_buff *skb, u8 cmd)
234 return genlmsg_put(skb, 0, ++ethnl_bcast_seq, ðtool_genl_family, 0,
238 int ethnl_multicast(struct sk_buff *skb, struct net_device *dev)
240 return genlmsg_multicast_netns(ðtool_genl_family, dev_net(dev), skb,
241 0, ETHNL_MCGRP_MONITOR, GFP_KERNEL);
244 /* GET request helpers */
247 * struct ethnl_dump_ctx - context structure for generic dumpit() callback
248 * @ops: request ops of currently processed message type
249 * @req_info: parsed request header of processed request
250 * @reply_data: data needed to compose the reply
251 * @pos_hash: saved iteration position - hashbucket
252 * @pos_idx: saved iteration position - index
254 * These parameters are kept in struct netlink_callback as context preserved
255 * between iterations. They are initialized by ethnl_default_start() and used
256 * in ethnl_default_dumpit() and ethnl_default_done().
258 struct ethnl_dump_ctx {
259 const struct ethnl_request_ops *ops;
260 struct ethnl_req_info *req_info;
261 struct ethnl_reply_data *reply_data;
266 static const struct ethnl_request_ops *
267 ethnl_default_requests[__ETHTOOL_MSG_USER_CNT] = {
268 [ETHTOOL_MSG_STRSET_GET] = ðnl_strset_request_ops,
269 [ETHTOOL_MSG_LINKINFO_GET] = ðnl_linkinfo_request_ops,
270 [ETHTOOL_MSG_LINKMODES_GET] = ðnl_linkmodes_request_ops,
271 [ETHTOOL_MSG_LINKSTATE_GET] = ðnl_linkstate_request_ops,
272 [ETHTOOL_MSG_DEBUG_GET] = ðnl_debug_request_ops,
273 [ETHTOOL_MSG_WOL_GET] = ðnl_wol_request_ops,
274 [ETHTOOL_MSG_FEATURES_GET] = ðnl_features_request_ops,
275 [ETHTOOL_MSG_PRIVFLAGS_GET] = ðnl_privflags_request_ops,
276 [ETHTOOL_MSG_RINGS_GET] = ðnl_rings_request_ops,
277 [ETHTOOL_MSG_CHANNELS_GET] = ðnl_channels_request_ops,
278 [ETHTOOL_MSG_COALESCE_GET] = ðnl_coalesce_request_ops,
279 [ETHTOOL_MSG_PAUSE_GET] = ðnl_pause_request_ops,
280 [ETHTOOL_MSG_EEE_GET] = ðnl_eee_request_ops,
281 [ETHTOOL_MSG_FEC_GET] = ðnl_fec_request_ops,
282 [ETHTOOL_MSG_TSINFO_GET] = ðnl_tsinfo_request_ops,
283 [ETHTOOL_MSG_MODULE_EEPROM_GET] = ðnl_module_eeprom_request_ops,
284 [ETHTOOL_MSG_STATS_GET] = ðnl_stats_request_ops,
285 [ETHTOOL_MSG_PHC_VCLOCKS_GET] = ðnl_phc_vclocks_request_ops,
288 static struct ethnl_dump_ctx *ethnl_dump_context(struct netlink_callback *cb)
290 return (struct ethnl_dump_ctx *)cb->ctx;
294 * ethnl_default_parse() - Parse request message
295 * @req_info: pointer to structure to put data into
296 * @tb: parsed attributes
297 * @net: request netns
298 * @request_ops: struct request_ops for request type
299 * @extack: netlink extack for error reporting
300 * @require_dev: fail if no device identified in header
302 * Parse universal request header and call request specific ->parse_request()
303 * callback (if defined) to parse the rest of the message.
305 * Return: 0 on success or negative error code
307 static int ethnl_default_parse(struct ethnl_req_info *req_info,
308 struct nlattr **tb, struct net *net,
309 const struct ethnl_request_ops *request_ops,
310 struct netlink_ext_ack *extack, bool require_dev)
314 ret = ethnl_parse_header_dev_get(req_info, tb[request_ops->hdr_attr],
315 net, extack, require_dev);
319 if (request_ops->parse_request) {
320 ret = request_ops->parse_request(req_info, tb, extack);
329 * ethnl_init_reply_data() - Initialize reply data for GET request
330 * @reply_data: pointer to embedded struct ethnl_reply_data
331 * @ops: instance of struct ethnl_request_ops describing the layout
332 * @dev: network device to initialize the reply for
334 * Fills the reply data part with zeros and sets the dev member. Must be called
335 * before calling the ->fill_reply() callback (for each iteration when handling
338 static void ethnl_init_reply_data(struct ethnl_reply_data *reply_data,
339 const struct ethnl_request_ops *ops,
340 struct net_device *dev)
342 memset(reply_data, 0, ops->reply_data_size);
343 reply_data->dev = dev;
346 /* default ->doit() handler for GET type requests */
347 static int ethnl_default_doit(struct sk_buff *skb, struct genl_info *info)
349 struct ethnl_reply_data *reply_data = NULL;
350 struct ethnl_req_info *req_info = NULL;
351 const u8 cmd = info->genlhdr->cmd;
352 const struct ethnl_request_ops *ops;
353 int hdr_len, reply_len;
354 struct sk_buff *rskb;
358 ops = ethnl_default_requests[cmd];
359 if (WARN_ONCE(!ops, "cmd %u has no ethnl_request_ops\n", cmd))
361 req_info = kzalloc(ops->req_info_size, GFP_KERNEL);
364 reply_data = kmalloc(ops->reply_data_size, GFP_KERNEL);
370 ret = ethnl_default_parse(req_info, info->attrs, genl_info_net(info),
371 ops, info->extack, !ops->allow_nodev_do);
374 ethnl_init_reply_data(reply_data, ops, req_info->dev);
377 ret = ops->prepare_data(req_info, reply_data, info);
381 ret = ops->reply_size(req_info, reply_data);
386 rskb = ethnl_reply_init(reply_len + ethnl_reply_header_size(),
387 req_info->dev, ops->reply_cmd,
388 ops->hdr_attr, info, &reply_payload);
392 ret = ops->fill_reply(rskb, req_info, reply_data);
395 WARN_ONCE(rskb->len - hdr_len > reply_len,
396 "ethnl cmd %d: calculated reply length %d, but consumed %d\n",
397 cmd, reply_len, rskb->len - hdr_len);
398 if (ops->cleanup_data)
399 ops->cleanup_data(reply_data);
401 genlmsg_end(rskb, reply_payload);
402 dev_put(req_info->dev);
405 return genlmsg_reply(rskb, info);
408 WARN_ONCE(ret == -EMSGSIZE, "calculated message payload length (%d) not sufficient\n", reply_len);
411 if (ops->cleanup_data)
412 ops->cleanup_data(reply_data);
414 dev_put(req_info->dev);
420 static int ethnl_default_dump_one(struct sk_buff *skb, struct net_device *dev,
421 const struct ethnl_dump_ctx *ctx,
422 struct netlink_callback *cb)
427 ehdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq,
428 ðtool_genl_family, NLM_F_MULTI,
429 ctx->ops->reply_cmd);
433 ethnl_init_reply_data(ctx->reply_data, ctx->ops, dev);
435 ret = ctx->ops->prepare_data(ctx->req_info, ctx->reply_data, NULL);
439 ret = ethnl_fill_reply_header(skb, dev, ctx->ops->hdr_attr);
442 ret = ctx->ops->fill_reply(skb, ctx->req_info, ctx->reply_data);
445 if (ctx->ops->cleanup_data)
446 ctx->ops->cleanup_data(ctx->reply_data);
447 ctx->reply_data->dev = NULL;
449 genlmsg_cancel(skb, ehdr);
451 genlmsg_end(skb, ehdr);
455 /* Default ->dumpit() handler for GET requests. Device iteration copied from
456 * rtnl_dump_ifinfo(); we have to be more careful about device hashtable
457 * persistence as we cannot guarantee to hold RTNL lock through the whole
458 * function as rtnetnlink does.
460 static int ethnl_default_dumpit(struct sk_buff *skb,
461 struct netlink_callback *cb)
463 struct ethnl_dump_ctx *ctx = ethnl_dump_context(cb);
464 struct net *net = sock_net(skb->sk);
465 int s_idx = ctx->pos_idx;
470 for (h = ctx->pos_hash; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
471 struct hlist_head *head;
472 struct net_device *dev;
475 head = &net->dev_index_head[h];
478 seq = net->dev_base_seq;
481 hlist_for_each_entry(dev, head, index_hlist) {
487 ret = ethnl_default_dump_one(skb, dev, ctx, cb);
490 if (ret == -EOPNOTSUPP)
492 if (likely(skb->len))
498 if (net->dev_base_seq != seq) {
512 nl_dump_check_consistent(cb, nlmsg_hdr(skb));
517 /* generic ->start() handler for GET requests */
518 static int ethnl_default_start(struct netlink_callback *cb)
520 const struct genl_dumpit_info *info = genl_dumpit_info(cb);
521 struct ethnl_dump_ctx *ctx = ethnl_dump_context(cb);
522 struct ethnl_reply_data *reply_data;
523 const struct ethnl_request_ops *ops;
524 struct ethnl_req_info *req_info;
525 struct genlmsghdr *ghdr;
528 BUILD_BUG_ON(sizeof(*ctx) > sizeof(cb->ctx));
530 ghdr = nlmsg_data(cb->nlh);
531 ops = ethnl_default_requests[ghdr->cmd];
532 if (WARN_ONCE(!ops, "cmd %u has no ethnl_request_ops\n", ghdr->cmd))
534 req_info = kzalloc(ops->req_info_size, GFP_KERNEL);
537 reply_data = kmalloc(ops->reply_data_size, GFP_KERNEL);
543 ret = ethnl_default_parse(req_info, info->attrs, sock_net(cb->skb->sk),
544 ops, cb->extack, false);
546 /* We ignore device specification in dump requests but as the
547 * same parser as for non-dump (doit) requests is used, it
548 * would take reference to the device if it finds one
550 dev_put(req_info->dev);
551 req_info->dev = NULL;
554 goto free_reply_data;
557 ctx->req_info = req_info;
558 ctx->reply_data = reply_data;
572 /* default ->done() handler for GET requests */
573 static int ethnl_default_done(struct netlink_callback *cb)
575 struct ethnl_dump_ctx *ctx = ethnl_dump_context(cb);
577 kfree(ctx->reply_data);
578 kfree(ctx->req_info);
583 static const struct ethnl_request_ops *
584 ethnl_default_notify_ops[ETHTOOL_MSG_KERNEL_MAX + 1] = {
585 [ETHTOOL_MSG_LINKINFO_NTF] = ðnl_linkinfo_request_ops,
586 [ETHTOOL_MSG_LINKMODES_NTF] = ðnl_linkmodes_request_ops,
587 [ETHTOOL_MSG_DEBUG_NTF] = ðnl_debug_request_ops,
588 [ETHTOOL_MSG_WOL_NTF] = ðnl_wol_request_ops,
589 [ETHTOOL_MSG_FEATURES_NTF] = ðnl_features_request_ops,
590 [ETHTOOL_MSG_PRIVFLAGS_NTF] = ðnl_privflags_request_ops,
591 [ETHTOOL_MSG_RINGS_NTF] = ðnl_rings_request_ops,
592 [ETHTOOL_MSG_CHANNELS_NTF] = ðnl_channels_request_ops,
593 [ETHTOOL_MSG_COALESCE_NTF] = ðnl_coalesce_request_ops,
594 [ETHTOOL_MSG_PAUSE_NTF] = ðnl_pause_request_ops,
595 [ETHTOOL_MSG_EEE_NTF] = ðnl_eee_request_ops,
596 [ETHTOOL_MSG_FEC_NTF] = ðnl_fec_request_ops,
599 /* default notification handler */
600 static void ethnl_default_notify(struct net_device *dev, unsigned int cmd,
603 struct ethnl_reply_data *reply_data;
604 const struct ethnl_request_ops *ops;
605 struct ethnl_req_info *req_info;
611 if (WARN_ONCE(cmd > ETHTOOL_MSG_KERNEL_MAX ||
612 !ethnl_default_notify_ops[cmd],
613 "unexpected notification type %u\n", cmd))
615 ops = ethnl_default_notify_ops[cmd];
616 req_info = kzalloc(ops->req_info_size, GFP_KERNEL);
619 reply_data = kmalloc(ops->reply_data_size, GFP_KERNEL);
626 req_info->flags |= ETHTOOL_FLAG_COMPACT_BITSETS;
628 ethnl_init_reply_data(reply_data, ops, dev);
629 ret = ops->prepare_data(req_info, reply_data, NULL);
632 ret = ops->reply_size(req_info, reply_data);
635 reply_len = ret + ethnl_reply_header_size();
637 skb = genlmsg_new(reply_len, GFP_KERNEL);
640 reply_payload = ethnl_bcastmsg_put(skb, cmd);
643 ret = ethnl_fill_reply_header(skb, dev, ops->hdr_attr);
646 ret = ops->fill_reply(skb, req_info, reply_data);
649 if (ops->cleanup_data)
650 ops->cleanup_data(reply_data);
652 genlmsg_end(skb, reply_payload);
655 ethnl_multicast(skb, dev);
659 WARN_ONCE(ret == -EMSGSIZE,
660 "calculated message payload length (%d) not sufficient\n",
665 if (ops->cleanup_data)
666 ops->cleanup_data(reply_data);
674 typedef void (*ethnl_notify_handler_t)(struct net_device *dev, unsigned int cmd,
677 static const ethnl_notify_handler_t ethnl_notify_handlers[] = {
678 [ETHTOOL_MSG_LINKINFO_NTF] = ethnl_default_notify,
679 [ETHTOOL_MSG_LINKMODES_NTF] = ethnl_default_notify,
680 [ETHTOOL_MSG_DEBUG_NTF] = ethnl_default_notify,
681 [ETHTOOL_MSG_WOL_NTF] = ethnl_default_notify,
682 [ETHTOOL_MSG_FEATURES_NTF] = ethnl_default_notify,
683 [ETHTOOL_MSG_PRIVFLAGS_NTF] = ethnl_default_notify,
684 [ETHTOOL_MSG_RINGS_NTF] = ethnl_default_notify,
685 [ETHTOOL_MSG_CHANNELS_NTF] = ethnl_default_notify,
686 [ETHTOOL_MSG_COALESCE_NTF] = ethnl_default_notify,
687 [ETHTOOL_MSG_PAUSE_NTF] = ethnl_default_notify,
688 [ETHTOOL_MSG_EEE_NTF] = ethnl_default_notify,
689 [ETHTOOL_MSG_FEC_NTF] = ethnl_default_notify,
692 void ethtool_notify(struct net_device *dev, unsigned int cmd, const void *data)
694 if (unlikely(!ethnl_ok))
698 if (likely(cmd < ARRAY_SIZE(ethnl_notify_handlers) &&
699 ethnl_notify_handlers[cmd]))
700 ethnl_notify_handlers[cmd](dev, cmd, data);
702 WARN_ONCE(1, "notification %u not implemented (dev=%s)\n",
703 cmd, netdev_name(dev));
705 EXPORT_SYMBOL(ethtool_notify);
707 static void ethnl_notify_features(struct netdev_notifier_info *info)
709 struct net_device *dev = netdev_notifier_info_to_dev(info);
711 ethtool_notify(dev, ETHTOOL_MSG_FEATURES_NTF, NULL);
714 static int ethnl_netdev_event(struct notifier_block *this, unsigned long event,
718 case NETDEV_FEAT_CHANGE:
719 ethnl_notify_features(ptr);
726 static struct notifier_block ethnl_netdev_notifier = {
727 .notifier_call = ethnl_netdev_event,
730 /* genetlink setup */
732 static const struct genl_ops ethtool_genl_ops[] = {
734 .cmd = ETHTOOL_MSG_STRSET_GET,
735 .doit = ethnl_default_doit,
736 .start = ethnl_default_start,
737 .dumpit = ethnl_default_dumpit,
738 .done = ethnl_default_done,
739 .policy = ethnl_strset_get_policy,
740 .maxattr = ARRAY_SIZE(ethnl_strset_get_policy) - 1,
743 .cmd = ETHTOOL_MSG_LINKINFO_GET,
744 .doit = ethnl_default_doit,
745 .start = ethnl_default_start,
746 .dumpit = ethnl_default_dumpit,
747 .done = ethnl_default_done,
748 .policy = ethnl_linkinfo_get_policy,
749 .maxattr = ARRAY_SIZE(ethnl_linkinfo_get_policy) - 1,
752 .cmd = ETHTOOL_MSG_LINKINFO_SET,
753 .flags = GENL_UNS_ADMIN_PERM,
754 .doit = ethnl_set_linkinfo,
755 .policy = ethnl_linkinfo_set_policy,
756 .maxattr = ARRAY_SIZE(ethnl_linkinfo_set_policy) - 1,
759 .cmd = ETHTOOL_MSG_LINKMODES_GET,
760 .doit = ethnl_default_doit,
761 .start = ethnl_default_start,
762 .dumpit = ethnl_default_dumpit,
763 .done = ethnl_default_done,
764 .policy = ethnl_linkmodes_get_policy,
765 .maxattr = ARRAY_SIZE(ethnl_linkmodes_get_policy) - 1,
768 .cmd = ETHTOOL_MSG_LINKMODES_SET,
769 .flags = GENL_UNS_ADMIN_PERM,
770 .doit = ethnl_set_linkmodes,
771 .policy = ethnl_linkmodes_set_policy,
772 .maxattr = ARRAY_SIZE(ethnl_linkmodes_set_policy) - 1,
775 .cmd = ETHTOOL_MSG_LINKSTATE_GET,
776 .doit = ethnl_default_doit,
777 .start = ethnl_default_start,
778 .dumpit = ethnl_default_dumpit,
779 .done = ethnl_default_done,
780 .policy = ethnl_linkstate_get_policy,
781 .maxattr = ARRAY_SIZE(ethnl_linkstate_get_policy) - 1,
784 .cmd = ETHTOOL_MSG_DEBUG_GET,
785 .doit = ethnl_default_doit,
786 .start = ethnl_default_start,
787 .dumpit = ethnl_default_dumpit,
788 .done = ethnl_default_done,
789 .policy = ethnl_debug_get_policy,
790 .maxattr = ARRAY_SIZE(ethnl_debug_get_policy) - 1,
793 .cmd = ETHTOOL_MSG_DEBUG_SET,
794 .flags = GENL_UNS_ADMIN_PERM,
795 .doit = ethnl_set_debug,
796 .policy = ethnl_debug_set_policy,
797 .maxattr = ARRAY_SIZE(ethnl_debug_set_policy) - 1,
800 .cmd = ETHTOOL_MSG_WOL_GET,
801 .flags = GENL_UNS_ADMIN_PERM,
802 .doit = ethnl_default_doit,
803 .start = ethnl_default_start,
804 .dumpit = ethnl_default_dumpit,
805 .done = ethnl_default_done,
806 .policy = ethnl_wol_get_policy,
807 .maxattr = ARRAY_SIZE(ethnl_wol_get_policy) - 1,
810 .cmd = ETHTOOL_MSG_WOL_SET,
811 .flags = GENL_UNS_ADMIN_PERM,
812 .doit = ethnl_set_wol,
813 .policy = ethnl_wol_set_policy,
814 .maxattr = ARRAY_SIZE(ethnl_wol_set_policy) - 1,
817 .cmd = ETHTOOL_MSG_FEATURES_GET,
818 .doit = ethnl_default_doit,
819 .start = ethnl_default_start,
820 .dumpit = ethnl_default_dumpit,
821 .done = ethnl_default_done,
822 .policy = ethnl_features_get_policy,
823 .maxattr = ARRAY_SIZE(ethnl_features_get_policy) - 1,
826 .cmd = ETHTOOL_MSG_FEATURES_SET,
827 .flags = GENL_UNS_ADMIN_PERM,
828 .doit = ethnl_set_features,
829 .policy = ethnl_features_set_policy,
830 .maxattr = ARRAY_SIZE(ethnl_features_set_policy) - 1,
833 .cmd = ETHTOOL_MSG_PRIVFLAGS_GET,
834 .doit = ethnl_default_doit,
835 .start = ethnl_default_start,
836 .dumpit = ethnl_default_dumpit,
837 .done = ethnl_default_done,
838 .policy = ethnl_privflags_get_policy,
839 .maxattr = ARRAY_SIZE(ethnl_privflags_get_policy) - 1,
842 .cmd = ETHTOOL_MSG_PRIVFLAGS_SET,
843 .flags = GENL_UNS_ADMIN_PERM,
844 .doit = ethnl_set_privflags,
845 .policy = ethnl_privflags_set_policy,
846 .maxattr = ARRAY_SIZE(ethnl_privflags_set_policy) - 1,
849 .cmd = ETHTOOL_MSG_RINGS_GET,
850 .doit = ethnl_default_doit,
851 .start = ethnl_default_start,
852 .dumpit = ethnl_default_dumpit,
853 .done = ethnl_default_done,
854 .policy = ethnl_rings_get_policy,
855 .maxattr = ARRAY_SIZE(ethnl_rings_get_policy) - 1,
858 .cmd = ETHTOOL_MSG_RINGS_SET,
859 .flags = GENL_UNS_ADMIN_PERM,
860 .doit = ethnl_set_rings,
861 .policy = ethnl_rings_set_policy,
862 .maxattr = ARRAY_SIZE(ethnl_rings_set_policy) - 1,
865 .cmd = ETHTOOL_MSG_CHANNELS_GET,
866 .doit = ethnl_default_doit,
867 .start = ethnl_default_start,
868 .dumpit = ethnl_default_dumpit,
869 .done = ethnl_default_done,
870 .policy = ethnl_channels_get_policy,
871 .maxattr = ARRAY_SIZE(ethnl_channels_get_policy) - 1,
874 .cmd = ETHTOOL_MSG_CHANNELS_SET,
875 .flags = GENL_UNS_ADMIN_PERM,
876 .doit = ethnl_set_channels,
877 .policy = ethnl_channels_set_policy,
878 .maxattr = ARRAY_SIZE(ethnl_channels_set_policy) - 1,
881 .cmd = ETHTOOL_MSG_COALESCE_GET,
882 .doit = ethnl_default_doit,
883 .start = ethnl_default_start,
884 .dumpit = ethnl_default_dumpit,
885 .done = ethnl_default_done,
886 .policy = ethnl_coalesce_get_policy,
887 .maxattr = ARRAY_SIZE(ethnl_coalesce_get_policy) - 1,
890 .cmd = ETHTOOL_MSG_COALESCE_SET,
891 .flags = GENL_UNS_ADMIN_PERM,
892 .doit = ethnl_set_coalesce,
893 .policy = ethnl_coalesce_set_policy,
894 .maxattr = ARRAY_SIZE(ethnl_coalesce_set_policy) - 1,
897 .cmd = ETHTOOL_MSG_PAUSE_GET,
898 .doit = ethnl_default_doit,
899 .start = ethnl_default_start,
900 .dumpit = ethnl_default_dumpit,
901 .done = ethnl_default_done,
902 .policy = ethnl_pause_get_policy,
903 .maxattr = ARRAY_SIZE(ethnl_pause_get_policy) - 1,
906 .cmd = ETHTOOL_MSG_PAUSE_SET,
907 .flags = GENL_UNS_ADMIN_PERM,
908 .doit = ethnl_set_pause,
909 .policy = ethnl_pause_set_policy,
910 .maxattr = ARRAY_SIZE(ethnl_pause_set_policy) - 1,
913 .cmd = ETHTOOL_MSG_EEE_GET,
914 .doit = ethnl_default_doit,
915 .start = ethnl_default_start,
916 .dumpit = ethnl_default_dumpit,
917 .done = ethnl_default_done,
918 .policy = ethnl_eee_get_policy,
919 .maxattr = ARRAY_SIZE(ethnl_eee_get_policy) - 1,
922 .cmd = ETHTOOL_MSG_EEE_SET,
923 .flags = GENL_UNS_ADMIN_PERM,
924 .doit = ethnl_set_eee,
925 .policy = ethnl_eee_set_policy,
926 .maxattr = ARRAY_SIZE(ethnl_eee_set_policy) - 1,
929 .cmd = ETHTOOL_MSG_TSINFO_GET,
930 .doit = ethnl_default_doit,
931 .start = ethnl_default_start,
932 .dumpit = ethnl_default_dumpit,
933 .done = ethnl_default_done,
934 .policy = ethnl_tsinfo_get_policy,
935 .maxattr = ARRAY_SIZE(ethnl_tsinfo_get_policy) - 1,
938 .cmd = ETHTOOL_MSG_CABLE_TEST_ACT,
939 .flags = GENL_UNS_ADMIN_PERM,
940 .doit = ethnl_act_cable_test,
941 .policy = ethnl_cable_test_act_policy,
942 .maxattr = ARRAY_SIZE(ethnl_cable_test_act_policy) - 1,
945 .cmd = ETHTOOL_MSG_CABLE_TEST_TDR_ACT,
946 .flags = GENL_UNS_ADMIN_PERM,
947 .doit = ethnl_act_cable_test_tdr,
948 .policy = ethnl_cable_test_tdr_act_policy,
949 .maxattr = ARRAY_SIZE(ethnl_cable_test_tdr_act_policy) - 1,
952 .cmd = ETHTOOL_MSG_TUNNEL_INFO_GET,
953 .doit = ethnl_tunnel_info_doit,
954 .start = ethnl_tunnel_info_start,
955 .dumpit = ethnl_tunnel_info_dumpit,
956 .policy = ethnl_tunnel_info_get_policy,
957 .maxattr = ARRAY_SIZE(ethnl_tunnel_info_get_policy) - 1,
960 .cmd = ETHTOOL_MSG_FEC_GET,
961 .doit = ethnl_default_doit,
962 .start = ethnl_default_start,
963 .dumpit = ethnl_default_dumpit,
964 .done = ethnl_default_done,
965 .policy = ethnl_fec_get_policy,
966 .maxattr = ARRAY_SIZE(ethnl_fec_get_policy) - 1,
969 .cmd = ETHTOOL_MSG_FEC_SET,
970 .flags = GENL_UNS_ADMIN_PERM,
971 .doit = ethnl_set_fec,
972 .policy = ethnl_fec_set_policy,
973 .maxattr = ARRAY_SIZE(ethnl_fec_set_policy) - 1,
976 .cmd = ETHTOOL_MSG_MODULE_EEPROM_GET,
977 .flags = GENL_UNS_ADMIN_PERM,
978 .doit = ethnl_default_doit,
979 .start = ethnl_default_start,
980 .dumpit = ethnl_default_dumpit,
981 .done = ethnl_default_done,
982 .policy = ethnl_module_eeprom_get_policy,
983 .maxattr = ARRAY_SIZE(ethnl_module_eeprom_get_policy) - 1,
986 .cmd = ETHTOOL_MSG_STATS_GET,
987 .doit = ethnl_default_doit,
988 .start = ethnl_default_start,
989 .dumpit = ethnl_default_dumpit,
990 .done = ethnl_default_done,
991 .policy = ethnl_stats_get_policy,
992 .maxattr = ARRAY_SIZE(ethnl_stats_get_policy) - 1,
995 .cmd = ETHTOOL_MSG_PHC_VCLOCKS_GET,
996 .doit = ethnl_default_doit,
997 .start = ethnl_default_start,
998 .dumpit = ethnl_default_dumpit,
999 .done = ethnl_default_done,
1000 .policy = ethnl_phc_vclocks_get_policy,
1001 .maxattr = ARRAY_SIZE(ethnl_phc_vclocks_get_policy) - 1,
1005 static const struct genl_multicast_group ethtool_nl_mcgrps[] = {
1006 [ETHNL_MCGRP_MONITOR] = { .name = ETHTOOL_MCGRP_MONITOR_NAME },
1009 static struct genl_family ethtool_genl_family __ro_after_init = {
1010 .name = ETHTOOL_GENL_NAME,
1011 .version = ETHTOOL_GENL_VERSION,
1013 .parallel_ops = true,
1014 .ops = ethtool_genl_ops,
1015 .n_ops = ARRAY_SIZE(ethtool_genl_ops),
1016 .mcgrps = ethtool_nl_mcgrps,
1017 .n_mcgrps = ARRAY_SIZE(ethtool_nl_mcgrps),
1022 static int __init ethnl_init(void)
1026 ret = genl_register_family(ðtool_genl_family);
1027 if (WARN(ret < 0, "ethtool: genetlink family registration failed"))
1031 ret = register_netdevice_notifier(ðnl_netdev_notifier);
1032 WARN(ret < 0, "ethtool: net device notifier registration failed");
1036 subsys_initcall(ethnl_init);