2 * swconfig.c: Switch configuration API
4 * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
17 #include <linux/types.h>
18 #include <linux/module.h>
19 #include <linux/init.h>
20 #include <linux/list.h>
22 #include <linux/if_ether.h>
23 #include <linux/capability.h>
24 #include <linux/skbuff.h>
25 #include <linux/switch.h>
27 #include <linux/version.h>
29 #define SWCONFIG_DEVNAME "switch%d"
31 #include "swconfig_leds.c"
33 MODULE_AUTHOR("Felix Fietkau <nbd@openwrt.org>");
34 MODULE_LICENSE("GPL");
37 static struct list_head swdevs;
38 static DEFINE_SPINLOCK(swdevs_lock);
39 struct swconfig_callback;
41 struct swconfig_callback {
43 struct genlmsghdr *hdr;
44 struct genl_info *info;
47 /* callback for filling in the message data */
48 int (*fill)(struct swconfig_callback *cb, void *arg);
50 /* callback for closing the message before sending it */
51 int (*close)(struct swconfig_callback *cb, void *arg);
53 struct nlattr *nest[4];
60 swconfig_get_vlan_ports(struct switch_dev *dev, const struct switch_attr *attr,
61 struct switch_val *val)
64 if (val->port_vlan >= dev->vlans)
67 if (!dev->ops->get_vlan_ports)
70 ret = dev->ops->get_vlan_ports(dev, val);
75 swconfig_set_vlan_ports(struct switch_dev *dev, const struct switch_attr *attr,
76 struct switch_val *val)
78 struct switch_port *ports = val->value.ports;
79 const struct switch_dev_ops *ops = dev->ops;
82 if (val->port_vlan >= dev->vlans)
86 if (val->len > dev->ports)
89 if (!ops->set_vlan_ports)
92 for (i = 0; i < val->len; i++) {
93 if (ports[i].id >= dev->ports)
96 if (ops->set_port_pvid &&
97 !(ports[i].flags & (1 << SWITCH_PORT_FLAG_TAGGED)))
98 ops->set_port_pvid(dev, ports[i].id, val->port_vlan);
101 return ops->set_vlan_ports(dev, val);
105 swconfig_set_pvid(struct switch_dev *dev, const struct switch_attr *attr,
106 struct switch_val *val)
108 if (val->port_vlan >= dev->ports)
111 if (!dev->ops->set_port_pvid)
114 return dev->ops->set_port_pvid(dev, val->port_vlan, val->value.i);
118 swconfig_get_pvid(struct switch_dev *dev, const struct switch_attr *attr,
119 struct switch_val *val)
121 if (val->port_vlan >= dev->ports)
124 if (!dev->ops->get_port_pvid)
127 return dev->ops->get_port_pvid(dev, val->port_vlan, &val->value.i);
131 swconfig_set_link(struct switch_dev *dev, const struct switch_attr *attr,
132 struct switch_val *val)
134 if (!dev->ops->set_port_link)
137 return dev->ops->set_port_link(dev, val->port_vlan, val->value.link);
141 swconfig_get_link(struct switch_dev *dev, const struct switch_attr *attr,
142 struct switch_val *val)
144 struct switch_port_link *link = val->value.link;
146 if (val->port_vlan >= dev->ports)
149 if (!dev->ops->get_port_link)
152 memset(link, 0, sizeof(*link));
153 return dev->ops->get_port_link(dev, val->port_vlan, link);
157 swconfig_apply_config(struct switch_dev *dev, const struct switch_attr *attr,
158 struct switch_val *val)
160 /* don't complain if not supported by the switch driver */
161 if (!dev->ops->apply_config)
164 return dev->ops->apply_config(dev);
168 swconfig_reset_switch(struct switch_dev *dev, const struct switch_attr *attr,
169 struct switch_val *val)
171 /* don't complain if not supported by the switch driver */
172 if (!dev->ops->reset_switch)
175 return dev->ops->reset_switch(dev);
178 enum global_defaults {
192 static struct switch_attr default_global[] = {
194 .type = SWITCH_TYPE_NOVAL,
196 .description = "Activate changes in the hardware",
197 .set = swconfig_apply_config,
200 .type = SWITCH_TYPE_NOVAL,
202 .description = "Reset the switch",
203 .set = swconfig_reset_switch,
207 static struct switch_attr default_port[] = {
209 .type = SWITCH_TYPE_INT,
211 .description = "Primary VLAN ID",
212 .set = swconfig_set_pvid,
213 .get = swconfig_get_pvid,
216 .type = SWITCH_TYPE_LINK,
218 .description = "Get port link information",
219 .set = swconfig_set_link,
220 .get = swconfig_get_link,
224 static struct switch_attr default_vlan[] = {
226 .type = SWITCH_TYPE_PORTS,
228 .description = "VLAN port mapping",
229 .set = swconfig_set_vlan_ports,
230 .get = swconfig_get_vlan_ports,
234 static const struct switch_attr *
235 swconfig_find_attr_by_name(const struct switch_attrlist *alist,
240 for (i = 0; i < alist->n_attr; i++)
241 if (strcmp(name, alist->attr[i].name) == 0)
242 return &alist->attr[i];
247 static void swconfig_defaults_init(struct switch_dev *dev)
249 const struct switch_dev_ops *ops = dev->ops;
255 if (ops->get_vlan_ports || ops->set_vlan_ports)
256 set_bit(VLAN_PORTS, &dev->def_vlan);
258 if (ops->get_port_pvid || ops->set_port_pvid)
259 set_bit(PORT_PVID, &dev->def_port);
261 if (ops->get_port_link &&
262 !swconfig_find_attr_by_name(&ops->attr_port, "link"))
263 set_bit(PORT_LINK, &dev->def_port);
265 /* always present, can be no-op */
266 set_bit(GLOBAL_APPLY, &dev->def_global);
267 set_bit(GLOBAL_RESET, &dev->def_global);
271 static struct genl_family switch_fam = {
272 .id = GENL_ID_GENERATE,
276 .maxattr = SWITCH_ATTR_MAX,
279 static const struct nla_policy switch_policy[SWITCH_ATTR_MAX+1] = {
280 [SWITCH_ATTR_ID] = { .type = NLA_U32 },
281 [SWITCH_ATTR_OP_ID] = { .type = NLA_U32 },
282 [SWITCH_ATTR_OP_PORT] = { .type = NLA_U32 },
283 [SWITCH_ATTR_OP_VLAN] = { .type = NLA_U32 },
284 [SWITCH_ATTR_OP_VALUE_INT] = { .type = NLA_U32 },
285 [SWITCH_ATTR_OP_VALUE_STR] = { .type = NLA_NUL_STRING },
286 [SWITCH_ATTR_OP_VALUE_PORTS] = { .type = NLA_NESTED },
287 [SWITCH_ATTR_TYPE] = { .type = NLA_U32 },
290 static const struct nla_policy port_policy[SWITCH_PORT_ATTR_MAX+1] = {
291 [SWITCH_PORT_ID] = { .type = NLA_U32 },
292 [SWITCH_PORT_FLAG_TAGGED] = { .type = NLA_FLAG },
295 static struct nla_policy link_policy[SWITCH_LINK_ATTR_MAX] = {
296 [SWITCH_LINK_FLAG_DUPLEX] = { .type = NLA_FLAG },
297 [SWITCH_LINK_FLAG_ANEG] = { .type = NLA_FLAG },
298 [SWITCH_LINK_SPEED] = { .type = NLA_U32 },
304 spin_lock(&swdevs_lock);
308 swconfig_unlock(void)
310 spin_unlock(&swdevs_lock);
313 static struct switch_dev *
314 swconfig_get_dev(struct genl_info *info)
316 struct switch_dev *dev = NULL;
317 struct switch_dev *p;
320 if (!info->attrs[SWITCH_ATTR_ID])
323 id = nla_get_u32(info->attrs[SWITCH_ATTR_ID]);
325 list_for_each_entry(p, &swdevs, dev_list) {
333 mutex_lock(&dev->sw_mutex);
335 pr_debug("device %d not found\n", id);
342 swconfig_put_dev(struct switch_dev *dev)
344 mutex_unlock(&dev->sw_mutex);
348 swconfig_dump_attr(struct swconfig_callback *cb, void *arg)
350 struct switch_attr *op = arg;
351 struct genl_info *info = cb->info;
352 struct sk_buff *msg = cb->msg;
353 int id = cb->args[0];
356 hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, &switch_fam,
357 NLM_F_MULTI, SWITCH_CMD_NEW_ATTR);
361 if (nla_put_u32(msg, SWITCH_ATTR_OP_ID, id))
362 goto nla_put_failure;
363 if (nla_put_u32(msg, SWITCH_ATTR_OP_TYPE, op->type))
364 goto nla_put_failure;
365 if (nla_put_string(msg, SWITCH_ATTR_OP_NAME, op->name))
366 goto nla_put_failure;
368 if (nla_put_string(msg, SWITCH_ATTR_OP_DESCRIPTION,
370 goto nla_put_failure;
372 genlmsg_end(msg, hdr);
375 genlmsg_cancel(msg, hdr);
379 /* spread multipart messages across multiple message buffers */
381 swconfig_send_multipart(struct swconfig_callback *cb, void *arg)
383 struct genl_info *info = cb->info;
389 cb->msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
394 if (!(cb->fill(cb, arg) < 0))
397 /* fill failed, check if this was already the second attempt */
401 /* try again in a new message, send the current one */
404 if (cb->close(cb, arg) < 0)
407 err = genlmsg_reply(cb->msg, info);
423 swconfig_list_attrs(struct sk_buff *skb, struct genl_info *info)
425 struct genlmsghdr *hdr = nlmsg_data(info->nlhdr);
426 const struct switch_attrlist *alist;
427 struct switch_dev *dev;
428 struct swconfig_callback cb;
433 struct switch_attr *def_list;
434 unsigned long *def_active;
437 dev = swconfig_get_dev(info);
442 case SWITCH_CMD_LIST_GLOBAL:
443 alist = &dev->ops->attr_global;
444 def_list = default_global;
445 def_active = &dev->def_global;
446 n_def = ARRAY_SIZE(default_global);
448 case SWITCH_CMD_LIST_VLAN:
449 alist = &dev->ops->attr_vlan;
450 def_list = default_vlan;
451 def_active = &dev->def_vlan;
452 n_def = ARRAY_SIZE(default_vlan);
454 case SWITCH_CMD_LIST_PORT:
455 alist = &dev->ops->attr_port;
456 def_list = default_port;
457 def_active = &dev->def_port;
458 n_def = ARRAY_SIZE(default_port);
465 memset(&cb, 0, sizeof(cb));
467 cb.fill = swconfig_dump_attr;
468 for (i = 0; i < alist->n_attr; i++) {
469 if (alist->attr[i].disabled)
472 err = swconfig_send_multipart(&cb, (void *) &alist->attr[i]);
478 for (i = 0; i < n_def; i++) {
479 if (!test_bit(i, def_active))
481 cb.args[0] = SWITCH_ATTR_DEFAULTS_OFFSET + i;
482 err = swconfig_send_multipart(&cb, (void *) &def_list[i]);
486 swconfig_put_dev(dev);
491 return genlmsg_reply(cb.msg, info);
497 swconfig_put_dev(dev);
501 static const struct switch_attr *
502 swconfig_lookup_attr(struct switch_dev *dev, struct genl_info *info,
503 struct switch_val *val)
505 struct genlmsghdr *hdr = nlmsg_data(info->nlhdr);
506 const struct switch_attrlist *alist;
507 const struct switch_attr *attr = NULL;
511 struct switch_attr *def_list;
512 unsigned long *def_active;
515 if (!info->attrs[SWITCH_ATTR_OP_ID])
519 case SWITCH_CMD_SET_GLOBAL:
520 case SWITCH_CMD_GET_GLOBAL:
521 alist = &dev->ops->attr_global;
522 def_list = default_global;
523 def_active = &dev->def_global;
524 n_def = ARRAY_SIZE(default_global);
526 case SWITCH_CMD_SET_VLAN:
527 case SWITCH_CMD_GET_VLAN:
528 alist = &dev->ops->attr_vlan;
529 def_list = default_vlan;
530 def_active = &dev->def_vlan;
531 n_def = ARRAY_SIZE(default_vlan);
532 if (!info->attrs[SWITCH_ATTR_OP_VLAN])
534 val->port_vlan = nla_get_u32(info->attrs[SWITCH_ATTR_OP_VLAN]);
535 if (val->port_vlan >= dev->vlans)
538 case SWITCH_CMD_SET_PORT:
539 case SWITCH_CMD_GET_PORT:
540 alist = &dev->ops->attr_port;
541 def_list = default_port;
542 def_active = &dev->def_port;
543 n_def = ARRAY_SIZE(default_port);
544 if (!info->attrs[SWITCH_ATTR_OP_PORT])
546 val->port_vlan = nla_get_u32(info->attrs[SWITCH_ATTR_OP_PORT]);
547 if (val->port_vlan >= dev->ports)
558 attr_id = nla_get_u32(info->attrs[SWITCH_ATTR_OP_ID]);
559 if (attr_id >= SWITCH_ATTR_DEFAULTS_OFFSET) {
560 attr_id -= SWITCH_ATTR_DEFAULTS_OFFSET;
561 if (attr_id >= n_def)
563 if (!test_bit(attr_id, def_active))
565 attr = &def_list[attr_id];
567 if (attr_id >= alist->n_attr)
569 attr = &alist->attr[attr_id];
577 pr_debug("attribute lookup failed\n");
583 swconfig_parse_ports(struct sk_buff *msg, struct nlattr *head,
584 struct switch_val *val, int max)
590 nla_for_each_nested(nla, head, rem) {
591 struct nlattr *tb[SWITCH_PORT_ATTR_MAX+1];
592 struct switch_port *port = &val->value.ports[val->len];
597 if (nla_parse_nested(tb, SWITCH_PORT_ATTR_MAX, nla,
601 if (!tb[SWITCH_PORT_ID])
604 port->id = nla_get_u32(tb[SWITCH_PORT_ID]);
605 if (tb[SWITCH_PORT_FLAG_TAGGED])
606 port->flags |= (1 << SWITCH_PORT_FLAG_TAGGED);
614 swconfig_parse_link(struct sk_buff *msg, struct nlattr *nla,
615 struct switch_port_link *link)
617 struct nlattr *tb[SWITCH_LINK_ATTR_MAX + 1];
619 if (nla_parse_nested(tb, SWITCH_LINK_ATTR_MAX, nla, link_policy))
622 link->duplex = !!tb[SWITCH_LINK_FLAG_DUPLEX];
623 link->aneg = !!tb[SWITCH_LINK_FLAG_ANEG];
624 link->speed = nla_get_u32(tb[SWITCH_LINK_SPEED]);
630 swconfig_set_attr(struct sk_buff *skb, struct genl_info *info)
632 const struct switch_attr *attr;
633 struct switch_dev *dev;
634 struct switch_val val;
637 dev = swconfig_get_dev(info);
641 memset(&val, 0, sizeof(val));
642 attr = swconfig_lookup_attr(dev, info, &val);
643 if (!attr || !attr->set)
647 switch (attr->type) {
648 case SWITCH_TYPE_NOVAL:
650 case SWITCH_TYPE_INT:
651 if (!info->attrs[SWITCH_ATTR_OP_VALUE_INT])
654 nla_get_u32(info->attrs[SWITCH_ATTR_OP_VALUE_INT]);
656 case SWITCH_TYPE_STRING:
657 if (!info->attrs[SWITCH_ATTR_OP_VALUE_STR])
660 nla_data(info->attrs[SWITCH_ATTR_OP_VALUE_STR]);
662 case SWITCH_TYPE_PORTS:
663 val.value.ports = dev->portbuf;
664 memset(dev->portbuf, 0,
665 sizeof(struct switch_port) * dev->ports);
667 /* TODO: implement multipart? */
668 if (info->attrs[SWITCH_ATTR_OP_VALUE_PORTS]) {
669 err = swconfig_parse_ports(skb,
670 info->attrs[SWITCH_ATTR_OP_VALUE_PORTS],
679 case SWITCH_TYPE_LINK:
680 val.value.link = &dev->linkbuf;
681 memset(&dev->linkbuf, 0, sizeof(struct switch_port_link));
683 if (info->attrs[SWITCH_ATTR_OP_VALUE_LINK]) {
684 err = swconfig_parse_link(skb,
685 info->attrs[SWITCH_ATTR_OP_VALUE_LINK],
698 err = attr->set(dev, attr, &val);
700 swconfig_put_dev(dev);
705 swconfig_close_portlist(struct swconfig_callback *cb, void *arg)
708 nla_nest_end(cb->msg, cb->nest[0]);
713 swconfig_send_port(struct swconfig_callback *cb, void *arg)
715 const struct switch_port *port = arg;
716 struct nlattr *p = NULL;
719 cb->nest[0] = nla_nest_start(cb->msg, cb->cmd);
724 p = nla_nest_start(cb->msg, SWITCH_ATTR_PORT);
728 if (nla_put_u32(cb->msg, SWITCH_PORT_ID, port->id))
729 goto nla_put_failure;
730 if (port->flags & (1 << SWITCH_PORT_FLAG_TAGGED)) {
731 if (nla_put_flag(cb->msg, SWITCH_PORT_FLAG_TAGGED))
732 goto nla_put_failure;
735 nla_nest_end(cb->msg, p);
739 nla_nest_cancel(cb->msg, p);
741 nla_nest_cancel(cb->msg, cb->nest[0]);
746 swconfig_send_ports(struct sk_buff **msg, struct genl_info *info, int attr,
747 const struct switch_val *val)
749 struct swconfig_callback cb;
753 if (!val->value.ports)
756 memset(&cb, 0, sizeof(cb));
760 cb.fill = swconfig_send_port;
761 cb.close = swconfig_close_portlist;
763 cb.nest[0] = nla_nest_start(cb.msg, cb.cmd);
764 for (i = 0; i < val->len; i++) {
765 err = swconfig_send_multipart(&cb, &val->value.ports[i]);
770 swconfig_close_portlist(&cb, NULL);
778 swconfig_send_link(struct sk_buff *msg, struct genl_info *info, int attr,
779 const struct switch_port_link *link)
781 struct nlattr *p = NULL;
784 p = nla_nest_start(msg, attr);
786 if (nla_put_flag(msg, SWITCH_LINK_FLAG_LINK))
787 goto nla_put_failure;
790 if (nla_put_flag(msg, SWITCH_LINK_FLAG_DUPLEX))
791 goto nla_put_failure;
794 if (nla_put_flag(msg, SWITCH_LINK_FLAG_ANEG))
795 goto nla_put_failure;
798 if (nla_put_flag(msg, SWITCH_LINK_FLAG_TX_FLOW))
799 goto nla_put_failure;
802 if (nla_put_flag(msg, SWITCH_LINK_FLAG_RX_FLOW))
803 goto nla_put_failure;
805 if (nla_put_u32(msg, SWITCH_LINK_SPEED, link->speed))
806 goto nla_put_failure;
807 if (link->eee & ADVERTISED_100baseT_Full) {
808 if (nla_put_flag(msg, SWITCH_LINK_FLAG_EEE_100BASET))
809 goto nla_put_failure;
811 if (link->eee & ADVERTISED_1000baseT_Full) {
812 if (nla_put_flag(msg, SWITCH_LINK_FLAG_EEE_1000BASET))
813 goto nla_put_failure;
815 nla_nest_end(msg, p);
820 nla_nest_cancel(msg, p);
825 swconfig_get_attr(struct sk_buff *skb, struct genl_info *info)
827 struct genlmsghdr *hdr = nlmsg_data(info->nlhdr);
828 const struct switch_attr *attr;
829 struct switch_dev *dev;
830 struct sk_buff *msg = NULL;
831 struct switch_val val;
835 dev = swconfig_get_dev(info);
839 memset(&val, 0, sizeof(val));
840 attr = swconfig_lookup_attr(dev, info, &val);
841 if (!attr || !attr->get)
844 if (attr->type == SWITCH_TYPE_PORTS) {
845 val.value.ports = dev->portbuf;
846 memset(dev->portbuf, 0,
847 sizeof(struct switch_port) * dev->ports);
848 } else if (attr->type == SWITCH_TYPE_LINK) {
849 val.value.link = &dev->linkbuf;
850 memset(&dev->linkbuf, 0, sizeof(struct switch_port_link));
853 err = attr->get(dev, attr, &val);
857 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
861 hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, &switch_fam,
864 goto nla_put_failure;
866 switch (attr->type) {
867 case SWITCH_TYPE_INT:
868 if (nla_put_u32(msg, SWITCH_ATTR_OP_VALUE_INT, val.value.i))
869 goto nla_put_failure;
871 case SWITCH_TYPE_STRING:
872 if (nla_put_string(msg, SWITCH_ATTR_OP_VALUE_STR, val.value.s))
873 goto nla_put_failure;
875 case SWITCH_TYPE_PORTS:
876 err = swconfig_send_ports(&msg, info,
877 SWITCH_ATTR_OP_VALUE_PORTS, &val);
879 goto nla_put_failure;
881 case SWITCH_TYPE_LINK:
882 err = swconfig_send_link(msg, info,
883 SWITCH_ATTR_OP_VALUE_LINK, val.value.link);
885 goto nla_put_failure;
888 pr_debug("invalid type in attribute\n");
892 genlmsg_end(msg, hdr);
895 goto nla_put_failure;
897 swconfig_put_dev(dev);
898 return genlmsg_reply(msg, info);
904 swconfig_put_dev(dev);
911 swconfig_send_switch(struct sk_buff *msg, u32 pid, u32 seq, int flags,
912 const struct switch_dev *dev)
914 struct nlattr *p = NULL, *m = NULL;
918 hdr = genlmsg_put(msg, pid, seq, &switch_fam, flags,
919 SWITCH_CMD_NEW_ATTR);
923 if (nla_put_u32(msg, SWITCH_ATTR_ID, dev->id))
924 goto nla_put_failure;
925 if (nla_put_string(msg, SWITCH_ATTR_DEV_NAME, dev->devname))
926 goto nla_put_failure;
927 if (nla_put_string(msg, SWITCH_ATTR_ALIAS, dev->alias))
928 goto nla_put_failure;
929 if (nla_put_string(msg, SWITCH_ATTR_NAME, dev->name))
930 goto nla_put_failure;
931 if (nla_put_u32(msg, SWITCH_ATTR_VLANS, dev->vlans))
932 goto nla_put_failure;
933 if (nla_put_u32(msg, SWITCH_ATTR_PORTS, dev->ports))
934 goto nla_put_failure;
935 if (nla_put_u32(msg, SWITCH_ATTR_CPU_PORT, dev->cpu_port))
936 goto nla_put_failure;
938 m = nla_nest_start(msg, SWITCH_ATTR_PORTMAP);
940 goto nla_put_failure;
941 for (i = 0; i < dev->ports; i++) {
942 p = nla_nest_start(msg, SWITCH_ATTR_PORTS);
945 if (dev->portmap[i].s) {
946 if (nla_put_string(msg, SWITCH_PORTMAP_SEGMENT,
948 goto nla_put_failure;
949 if (nla_put_u32(msg, SWITCH_PORTMAP_VIRT,
950 dev->portmap[i].virt))
951 goto nla_put_failure;
953 nla_nest_end(msg, p);
955 nla_nest_end(msg, m);
956 genlmsg_end(msg, hdr);
959 genlmsg_cancel(msg, hdr);
963 static int swconfig_dump_switches(struct sk_buff *skb,
964 struct netlink_callback *cb)
966 struct switch_dev *dev;
967 int start = cb->args[0];
971 list_for_each_entry(dev, &swdevs, dev_list) {
974 if (swconfig_send_switch(skb, NETLINK_CB(cb->skb).portid,
975 cb->nlh->nlmsg_seq, NLM_F_MULTI,
986 swconfig_done(struct netlink_callback *cb)
991 static struct genl_ops swconfig_ops[] = {
993 .cmd = SWITCH_CMD_LIST_GLOBAL,
994 .doit = swconfig_list_attrs,
995 .policy = switch_policy,
998 .cmd = SWITCH_CMD_LIST_VLAN,
999 .doit = swconfig_list_attrs,
1000 .policy = switch_policy,
1003 .cmd = SWITCH_CMD_LIST_PORT,
1004 .doit = swconfig_list_attrs,
1005 .policy = switch_policy,
1008 .cmd = SWITCH_CMD_GET_GLOBAL,
1009 .doit = swconfig_get_attr,
1010 .policy = switch_policy,
1013 .cmd = SWITCH_CMD_GET_VLAN,
1014 .doit = swconfig_get_attr,
1015 .policy = switch_policy,
1018 .cmd = SWITCH_CMD_GET_PORT,
1019 .doit = swconfig_get_attr,
1020 .policy = switch_policy,
1023 .cmd = SWITCH_CMD_SET_GLOBAL,
1024 .doit = swconfig_set_attr,
1025 .policy = switch_policy,
1028 .cmd = SWITCH_CMD_SET_VLAN,
1029 .doit = swconfig_set_attr,
1030 .policy = switch_policy,
1033 .cmd = SWITCH_CMD_SET_PORT,
1034 .doit = swconfig_set_attr,
1035 .policy = switch_policy,
1038 .cmd = SWITCH_CMD_GET_SWITCH,
1039 .dumpit = swconfig_dump_switches,
1040 .policy = switch_policy,
1041 .done = swconfig_done,
1047 of_switch_load_portmap(struct switch_dev *dev)
1049 struct device_node *port;
1054 for_each_child_of_node(dev->of_node, port) {
1056 const char *segment;
1059 if (!of_device_is_compatible(port, "swconfig,port"))
1062 if (of_property_read_string(port, "swconfig,segment", &segment))
1065 prop = of_get_property(port, "swconfig,portmap", &size);
1069 if (size != (2 * sizeof(*prop))) {
1070 pr_err("%s: failed to parse port mapping\n",
1075 phys = be32_to_cpup(prop++);
1076 if ((phys < 0) | (phys >= dev->ports)) {
1077 pr_err("%s: physical port index out of range\n",
1082 dev->portmap[phys].s = kstrdup(segment, GFP_KERNEL);
1083 dev->portmap[phys].virt = be32_to_cpup(prop);
1084 pr_debug("Found port: %s, physical: %d, virtual: %d\n",
1085 segment, phys, dev->portmap[phys].virt);
1091 register_switch(struct switch_dev *dev, struct net_device *netdev)
1093 struct switch_dev *sdev;
1094 const int max_switches = 8 * sizeof(unsigned long);
1095 unsigned long in_use = 0;
1099 INIT_LIST_HEAD(&dev->dev_list);
1101 dev->netdev = netdev;
1103 dev->alias = netdev->name;
1105 BUG_ON(!dev->alias);
1107 if (dev->ports > 0) {
1108 dev->portbuf = kzalloc(sizeof(struct switch_port) *
1109 dev->ports, GFP_KERNEL);
1112 dev->portmap = kzalloc(sizeof(struct switch_portmap) *
1113 dev->ports, GFP_KERNEL);
1114 if (!dev->portmap) {
1115 kfree(dev->portbuf);
1119 swconfig_defaults_init(dev);
1120 mutex_init(&dev->sw_mutex);
1122 dev->id = ++swdev_id;
1124 list_for_each_entry(sdev, &swdevs, dev_list) {
1125 if (!sscanf(sdev->devname, SWCONFIG_DEVNAME, &i))
1127 if (i < 0 || i > max_switches)
1130 set_bit(i, &in_use);
1132 i = find_first_zero_bit(&in_use, max_switches);
1134 if (i == max_switches) {
1141 of_switch_load_portmap(dev);
1144 /* fill device name */
1145 snprintf(dev->devname, IFNAMSIZ, SWCONFIG_DEVNAME, i);
1147 list_add_tail(&dev->dev_list, &swdevs);
1150 err = swconfig_create_led_trigger(dev);
1156 EXPORT_SYMBOL_GPL(register_switch);
1159 unregister_switch(struct switch_dev *dev)
1161 swconfig_destroy_led_trigger(dev);
1162 kfree(dev->portbuf);
1163 mutex_lock(&dev->sw_mutex);
1165 list_del(&dev->dev_list);
1167 mutex_unlock(&dev->sw_mutex);
1169 EXPORT_SYMBOL_GPL(unregister_switch);
1175 INIT_LIST_HEAD(&swdevs);
1177 return genl_register_family_with_ops(&switch_fam, swconfig_ops);
1183 genl_unregister_family(&switch_fam);
1186 module_init(swconfig_init);
1187 module_exit(swconfig_exit);