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_speed_str(enum switch_port_speed speed
)
134 case SWITCH_PORT_SPEED_10
:
136 case SWITCH_PORT_SPEED_100
:
138 case SWITCH_PORT_SPEED_1000
:
148 swconfig_get_link(struct switch_dev
*dev
, const struct switch_attr
*attr
,
149 struct switch_val
*val
)
151 struct switch_port_link link
;
155 if (val
->port_vlan
>= dev
->ports
)
158 if (!dev
->ops
->get_port_link
)
161 memset(&link
, 0, sizeof(link
));
162 ret
= dev
->ops
->get_port_link(dev
, val
->port_vlan
, &link
);
166 memset(dev
->buf
, 0, sizeof(dev
->buf
));
169 len
= snprintf(dev
->buf
, sizeof(dev
->buf
),
170 "port:%d link:up speed:%s %s-duplex %s%s%s",
172 swconfig_speed_str(link
.speed
),
173 link
.duplex
? "full" : "half",
174 link
.tx_flow
? "txflow " : "",
175 link
.rx_flow
? "rxflow " : "",
176 link
.aneg
? "auto" : "");
178 len
= snprintf(dev
->buf
, sizeof(dev
->buf
), "port:%d link:down",
181 val
->value
.s
= dev
->buf
;
188 swconfig_apply_config(struct switch_dev
*dev
, const struct switch_attr
*attr
,
189 struct switch_val
*val
)
191 /* don't complain if not supported by the switch driver */
192 if (!dev
->ops
->apply_config
)
195 return dev
->ops
->apply_config(dev
);
199 swconfig_reset_switch(struct switch_dev
*dev
, const struct switch_attr
*attr
,
200 struct switch_val
*val
)
202 /* don't complain if not supported by the switch driver */
203 if (!dev
->ops
->reset_switch
)
206 return dev
->ops
->reset_switch(dev
);
209 enum global_defaults
{
223 static struct switch_attr default_global
[] = {
225 .type
= SWITCH_TYPE_NOVAL
,
227 .description
= "Activate changes in the hardware",
228 .set
= swconfig_apply_config
,
231 .type
= SWITCH_TYPE_NOVAL
,
233 .description
= "Reset the switch",
234 .set
= swconfig_reset_switch
,
238 static struct switch_attr default_port
[] = {
240 .type
= SWITCH_TYPE_INT
,
242 .description
= "Primary VLAN ID",
243 .set
= swconfig_set_pvid
,
244 .get
= swconfig_get_pvid
,
247 .type
= SWITCH_TYPE_STRING
,
249 .description
= "Get port link information",
251 .get
= swconfig_get_link
,
255 static struct switch_attr default_vlan
[] = {
257 .type
= SWITCH_TYPE_PORTS
,
259 .description
= "VLAN port mapping",
260 .set
= swconfig_set_vlan_ports
,
261 .get
= swconfig_get_vlan_ports
,
265 static const struct switch_attr
*
266 swconfig_find_attr_by_name(const struct switch_attrlist
*alist
,
271 for (i
= 0; i
< alist
->n_attr
; i
++)
272 if (strcmp(name
, alist
->attr
[i
].name
) == 0)
273 return &alist
->attr
[i
];
278 static void swconfig_defaults_init(struct switch_dev
*dev
)
280 const struct switch_dev_ops
*ops
= dev
->ops
;
286 if (ops
->get_vlan_ports
|| ops
->set_vlan_ports
)
287 set_bit(VLAN_PORTS
, &dev
->def_vlan
);
289 if (ops
->get_port_pvid
|| ops
->set_port_pvid
)
290 set_bit(PORT_PVID
, &dev
->def_port
);
292 if (ops
->get_port_link
&&
293 !swconfig_find_attr_by_name(&ops
->attr_port
, "link"))
294 set_bit(PORT_LINK
, &dev
->def_port
);
296 /* always present, can be no-op */
297 set_bit(GLOBAL_APPLY
, &dev
->def_global
);
298 set_bit(GLOBAL_RESET
, &dev
->def_global
);
302 static struct genl_family switch_fam
= {
303 .id
= GENL_ID_GENERATE
,
307 .maxattr
= SWITCH_ATTR_MAX
,
310 static const struct nla_policy switch_policy
[SWITCH_ATTR_MAX
+1] = {
311 [SWITCH_ATTR_ID
] = { .type
= NLA_U32
},
312 [SWITCH_ATTR_OP_ID
] = { .type
= NLA_U32
},
313 [SWITCH_ATTR_OP_PORT
] = { .type
= NLA_U32
},
314 [SWITCH_ATTR_OP_VLAN
] = { .type
= NLA_U32
},
315 [SWITCH_ATTR_OP_VALUE_INT
] = { .type
= NLA_U32
},
316 [SWITCH_ATTR_OP_VALUE_STR
] = { .type
= NLA_NUL_STRING
},
317 [SWITCH_ATTR_OP_VALUE_PORTS
] = { .type
= NLA_NESTED
},
318 [SWITCH_ATTR_TYPE
] = { .type
= NLA_U32
},
321 static const struct nla_policy port_policy
[SWITCH_PORT_ATTR_MAX
+1] = {
322 [SWITCH_PORT_ID
] = { .type
= NLA_U32
},
323 [SWITCH_PORT_FLAG_TAGGED
] = { .type
= NLA_FLAG
},
329 spin_lock(&swdevs_lock
);
333 swconfig_unlock(void)
335 spin_unlock(&swdevs_lock
);
338 static struct switch_dev
*
339 swconfig_get_dev(struct genl_info
*info
)
341 struct switch_dev
*dev
= NULL
;
342 struct switch_dev
*p
;
345 if (!info
->attrs
[SWITCH_ATTR_ID
])
348 id
= nla_get_u32(info
->attrs
[SWITCH_ATTR_ID
]);
350 list_for_each_entry(p
, &swdevs
, dev_list
) {
358 mutex_lock(&dev
->sw_mutex
);
360 pr_debug("device %d not found\n", id
);
367 swconfig_put_dev(struct switch_dev
*dev
)
369 mutex_unlock(&dev
->sw_mutex
);
373 swconfig_dump_attr(struct swconfig_callback
*cb
, void *arg
)
375 struct switch_attr
*op
= arg
;
376 struct genl_info
*info
= cb
->info
;
377 struct sk_buff
*msg
= cb
->msg
;
378 int id
= cb
->args
[0];
381 hdr
= genlmsg_put(msg
, info
->snd_portid
, info
->snd_seq
, &switch_fam
,
382 NLM_F_MULTI
, SWITCH_CMD_NEW_ATTR
);
386 if (nla_put_u32(msg
, SWITCH_ATTR_OP_ID
, id
))
387 goto nla_put_failure
;
388 if (nla_put_u32(msg
, SWITCH_ATTR_OP_TYPE
, op
->type
))
389 goto nla_put_failure
;
390 if (nla_put_string(msg
, SWITCH_ATTR_OP_NAME
, op
->name
))
391 goto nla_put_failure
;
393 if (nla_put_string(msg
, SWITCH_ATTR_OP_DESCRIPTION
,
395 goto nla_put_failure
;
397 return genlmsg_end(msg
, hdr
);
399 genlmsg_cancel(msg
, hdr
);
403 /* spread multipart messages across multiple message buffers */
405 swconfig_send_multipart(struct swconfig_callback
*cb
, void *arg
)
407 struct genl_info
*info
= cb
->info
;
413 cb
->msg
= nlmsg_new(NLMSG_GOODSIZE
, GFP_KERNEL
);
418 if (!(cb
->fill(cb
, arg
) < 0))
421 /* fill failed, check if this was already the second attempt */
425 /* try again in a new message, send the current one */
428 if (cb
->close(cb
, arg
) < 0)
431 err
= genlmsg_reply(cb
->msg
, info
);
447 swconfig_list_attrs(struct sk_buff
*skb
, struct genl_info
*info
)
449 struct genlmsghdr
*hdr
= nlmsg_data(info
->nlhdr
);
450 const struct switch_attrlist
*alist
;
451 struct switch_dev
*dev
;
452 struct swconfig_callback cb
;
457 struct switch_attr
*def_list
;
458 unsigned long *def_active
;
461 dev
= swconfig_get_dev(info
);
466 case SWITCH_CMD_LIST_GLOBAL
:
467 alist
= &dev
->ops
->attr_global
;
468 def_list
= default_global
;
469 def_active
= &dev
->def_global
;
470 n_def
= ARRAY_SIZE(default_global
);
472 case SWITCH_CMD_LIST_VLAN
:
473 alist
= &dev
->ops
->attr_vlan
;
474 def_list
= default_vlan
;
475 def_active
= &dev
->def_vlan
;
476 n_def
= ARRAY_SIZE(default_vlan
);
478 case SWITCH_CMD_LIST_PORT
:
479 alist
= &dev
->ops
->attr_port
;
480 def_list
= default_port
;
481 def_active
= &dev
->def_port
;
482 n_def
= ARRAY_SIZE(default_port
);
489 memset(&cb
, 0, sizeof(cb
));
491 cb
.fill
= swconfig_dump_attr
;
492 for (i
= 0; i
< alist
->n_attr
; i
++) {
493 if (alist
->attr
[i
].disabled
)
496 err
= swconfig_send_multipart(&cb
, (void *) &alist
->attr
[i
]);
502 for (i
= 0; i
< n_def
; i
++) {
503 if (!test_bit(i
, def_active
))
505 cb
.args
[0] = SWITCH_ATTR_DEFAULTS_OFFSET
+ i
;
506 err
= swconfig_send_multipart(&cb
, (void *) &def_list
[i
]);
510 swconfig_put_dev(dev
);
515 return genlmsg_reply(cb
.msg
, info
);
521 swconfig_put_dev(dev
);
525 static const struct switch_attr
*
526 swconfig_lookup_attr(struct switch_dev
*dev
, struct genl_info
*info
,
527 struct switch_val
*val
)
529 struct genlmsghdr
*hdr
= nlmsg_data(info
->nlhdr
);
530 const struct switch_attrlist
*alist
;
531 const struct switch_attr
*attr
= NULL
;
535 struct switch_attr
*def_list
;
536 unsigned long *def_active
;
539 if (!info
->attrs
[SWITCH_ATTR_OP_ID
])
543 case SWITCH_CMD_SET_GLOBAL
:
544 case SWITCH_CMD_GET_GLOBAL
:
545 alist
= &dev
->ops
->attr_global
;
546 def_list
= default_global
;
547 def_active
= &dev
->def_global
;
548 n_def
= ARRAY_SIZE(default_global
);
550 case SWITCH_CMD_SET_VLAN
:
551 case SWITCH_CMD_GET_VLAN
:
552 alist
= &dev
->ops
->attr_vlan
;
553 def_list
= default_vlan
;
554 def_active
= &dev
->def_vlan
;
555 n_def
= ARRAY_SIZE(default_vlan
);
556 if (!info
->attrs
[SWITCH_ATTR_OP_VLAN
])
558 val
->port_vlan
= nla_get_u32(info
->attrs
[SWITCH_ATTR_OP_VLAN
]);
559 if (val
->port_vlan
>= dev
->vlans
)
562 case SWITCH_CMD_SET_PORT
:
563 case SWITCH_CMD_GET_PORT
:
564 alist
= &dev
->ops
->attr_port
;
565 def_list
= default_port
;
566 def_active
= &dev
->def_port
;
567 n_def
= ARRAY_SIZE(default_port
);
568 if (!info
->attrs
[SWITCH_ATTR_OP_PORT
])
570 val
->port_vlan
= nla_get_u32(info
->attrs
[SWITCH_ATTR_OP_PORT
]);
571 if (val
->port_vlan
>= dev
->ports
)
582 attr_id
= nla_get_u32(info
->attrs
[SWITCH_ATTR_OP_ID
]);
583 if (attr_id
>= SWITCH_ATTR_DEFAULTS_OFFSET
) {
584 attr_id
-= SWITCH_ATTR_DEFAULTS_OFFSET
;
585 if (attr_id
>= n_def
)
587 if (!test_bit(attr_id
, def_active
))
589 attr
= &def_list
[attr_id
];
591 if (attr_id
>= alist
->n_attr
)
593 attr
= &alist
->attr
[attr_id
];
601 pr_debug("attribute lookup failed\n");
607 swconfig_parse_ports(struct sk_buff
*msg
, struct nlattr
*head
,
608 struct switch_val
*val
, int max
)
614 nla_for_each_nested(nla
, head
, rem
) {
615 struct nlattr
*tb
[SWITCH_PORT_ATTR_MAX
+1];
616 struct switch_port
*port
= &val
->value
.ports
[val
->len
];
621 if (nla_parse_nested(tb
, SWITCH_PORT_ATTR_MAX
, nla
,
625 if (!tb
[SWITCH_PORT_ID
])
628 port
->id
= nla_get_u32(tb
[SWITCH_PORT_ID
]);
629 if (tb
[SWITCH_PORT_FLAG_TAGGED
])
630 port
->flags
|= (1 << SWITCH_PORT_FLAG_TAGGED
);
638 swconfig_set_attr(struct sk_buff
*skb
, struct genl_info
*info
)
640 const struct switch_attr
*attr
;
641 struct switch_dev
*dev
;
642 struct switch_val val
;
645 dev
= swconfig_get_dev(info
);
649 memset(&val
, 0, sizeof(val
));
650 attr
= swconfig_lookup_attr(dev
, info
, &val
);
651 if (!attr
|| !attr
->set
)
655 switch (attr
->type
) {
656 case SWITCH_TYPE_NOVAL
:
658 case SWITCH_TYPE_INT
:
659 if (!info
->attrs
[SWITCH_ATTR_OP_VALUE_INT
])
662 nla_get_u32(info
->attrs
[SWITCH_ATTR_OP_VALUE_INT
]);
664 case SWITCH_TYPE_STRING
:
665 if (!info
->attrs
[SWITCH_ATTR_OP_VALUE_STR
])
668 nla_data(info
->attrs
[SWITCH_ATTR_OP_VALUE_STR
]);
670 case SWITCH_TYPE_PORTS
:
671 val
.value
.ports
= dev
->portbuf
;
672 memset(dev
->portbuf
, 0,
673 sizeof(struct switch_port
) * dev
->ports
);
675 /* TODO: implement multipart? */
676 if (info
->attrs
[SWITCH_ATTR_OP_VALUE_PORTS
]) {
677 err
= swconfig_parse_ports(skb
,
678 info
->attrs
[SWITCH_ATTR_OP_VALUE_PORTS
],
691 err
= attr
->set(dev
, attr
, &val
);
693 swconfig_put_dev(dev
);
698 swconfig_close_portlist(struct swconfig_callback
*cb
, void *arg
)
701 nla_nest_end(cb
->msg
, cb
->nest
[0]);
706 swconfig_send_port(struct swconfig_callback
*cb
, void *arg
)
708 const struct switch_port
*port
= arg
;
709 struct nlattr
*p
= NULL
;
712 cb
->nest
[0] = nla_nest_start(cb
->msg
, cb
->cmd
);
717 p
= nla_nest_start(cb
->msg
, SWITCH_ATTR_PORT
);
721 if (nla_put_u32(cb
->msg
, SWITCH_PORT_ID
, port
->id
))
722 goto nla_put_failure
;
723 if (port
->flags
& (1 << SWITCH_PORT_FLAG_TAGGED
)) {
724 if (nla_put_flag(cb
->msg
, SWITCH_PORT_FLAG_TAGGED
))
725 goto nla_put_failure
;
728 nla_nest_end(cb
->msg
, p
);
732 nla_nest_cancel(cb
->msg
, p
);
734 nla_nest_cancel(cb
->msg
, cb
->nest
[0]);
739 swconfig_send_ports(struct sk_buff
**msg
, struct genl_info
*info
, int attr
,
740 const struct switch_val
*val
)
742 struct swconfig_callback cb
;
746 if (!val
->value
.ports
)
749 memset(&cb
, 0, sizeof(cb
));
753 cb
.fill
= swconfig_send_port
;
754 cb
.close
= swconfig_close_portlist
;
756 cb
.nest
[0] = nla_nest_start(cb
.msg
, cb
.cmd
);
757 for (i
= 0; i
< val
->len
; i
++) {
758 err
= swconfig_send_multipart(&cb
, &val
->value
.ports
[i
]);
763 swconfig_close_portlist(&cb
, NULL
);
771 swconfig_get_attr(struct sk_buff
*skb
, struct genl_info
*info
)
773 struct genlmsghdr
*hdr
= nlmsg_data(info
->nlhdr
);
774 const struct switch_attr
*attr
;
775 struct switch_dev
*dev
;
776 struct sk_buff
*msg
= NULL
;
777 struct switch_val val
;
781 dev
= swconfig_get_dev(info
);
785 memset(&val
, 0, sizeof(val
));
786 attr
= swconfig_lookup_attr(dev
, info
, &val
);
787 if (!attr
|| !attr
->get
)
790 if (attr
->type
== SWITCH_TYPE_PORTS
) {
791 val
.value
.ports
= dev
->portbuf
;
792 memset(dev
->portbuf
, 0,
793 sizeof(struct switch_port
) * dev
->ports
);
796 err
= attr
->get(dev
, attr
, &val
);
800 msg
= nlmsg_new(NLMSG_GOODSIZE
, GFP_KERNEL
);
804 hdr
= genlmsg_put(msg
, info
->snd_portid
, info
->snd_seq
, &switch_fam
,
807 goto nla_put_failure
;
809 switch (attr
->type
) {
810 case SWITCH_TYPE_INT
:
811 if (nla_put_u32(msg
, SWITCH_ATTR_OP_VALUE_INT
, val
.value
.i
))
812 goto nla_put_failure
;
814 case SWITCH_TYPE_STRING
:
815 if (nla_put_string(msg
, SWITCH_ATTR_OP_VALUE_STR
, val
.value
.s
))
816 goto nla_put_failure
;
818 case SWITCH_TYPE_PORTS
:
819 err
= swconfig_send_ports(&msg
, info
,
820 SWITCH_ATTR_OP_VALUE_PORTS
, &val
);
822 goto nla_put_failure
;
825 pr_debug("invalid type in attribute\n");
829 err
= genlmsg_end(msg
, hdr
);
831 goto nla_put_failure
;
833 swconfig_put_dev(dev
);
834 return genlmsg_reply(msg
, info
);
840 swconfig_put_dev(dev
);
847 swconfig_send_switch(struct sk_buff
*msg
, u32 pid
, u32 seq
, int flags
,
848 const struct switch_dev
*dev
)
850 struct nlattr
*p
= NULL
, *m
= NULL
;
854 hdr
= genlmsg_put(msg
, pid
, seq
, &switch_fam
, flags
,
855 SWITCH_CMD_NEW_ATTR
);
859 if (nla_put_u32(msg
, SWITCH_ATTR_ID
, dev
->id
))
860 goto nla_put_failure
;
861 if (nla_put_string(msg
, SWITCH_ATTR_DEV_NAME
, dev
->devname
))
862 goto nla_put_failure
;
863 if (nla_put_string(msg
, SWITCH_ATTR_ALIAS
, dev
->alias
))
864 goto nla_put_failure
;
865 if (nla_put_string(msg
, SWITCH_ATTR_NAME
, dev
->name
))
866 goto nla_put_failure
;
867 if (nla_put_u32(msg
, SWITCH_ATTR_VLANS
, dev
->vlans
))
868 goto nla_put_failure
;
869 if (nla_put_u32(msg
, SWITCH_ATTR_PORTS
, dev
->ports
))
870 goto nla_put_failure
;
871 if (nla_put_u32(msg
, SWITCH_ATTR_CPU_PORT
, dev
->cpu_port
))
872 goto nla_put_failure
;
874 m
= nla_nest_start(msg
, SWITCH_ATTR_PORTMAP
);
876 goto nla_put_failure
;
877 for (i
= 0; i
< dev
->ports
; i
++) {
878 p
= nla_nest_start(msg
, SWITCH_ATTR_PORTS
);
881 if (dev
->portmap
[i
].s
) {
882 if (nla_put_string(msg
, SWITCH_PORTMAP_SEGMENT
,
884 goto nla_put_failure
;
885 if (nla_put_u32(msg
, SWITCH_PORTMAP_VIRT
,
886 dev
->portmap
[i
].virt
))
887 goto nla_put_failure
;
889 nla_nest_end(msg
, p
);
891 nla_nest_end(msg
, m
);
892 return genlmsg_end(msg
, hdr
);
894 genlmsg_cancel(msg
, hdr
);
898 static int swconfig_dump_switches(struct sk_buff
*skb
,
899 struct netlink_callback
*cb
)
901 struct switch_dev
*dev
;
902 int start
= cb
->args
[0];
906 list_for_each_entry(dev
, &swdevs
, dev_list
) {
909 if (swconfig_send_switch(skb
, NETLINK_CB(cb
->skb
).portid
,
910 cb
->nlh
->nlmsg_seq
, NLM_F_MULTI
,
921 swconfig_done(struct netlink_callback
*cb
)
926 static struct genl_ops swconfig_ops
[] = {
928 .cmd
= SWITCH_CMD_LIST_GLOBAL
,
929 .doit
= swconfig_list_attrs
,
930 .policy
= switch_policy
,
933 .cmd
= SWITCH_CMD_LIST_VLAN
,
934 .doit
= swconfig_list_attrs
,
935 .policy
= switch_policy
,
938 .cmd
= SWITCH_CMD_LIST_PORT
,
939 .doit
= swconfig_list_attrs
,
940 .policy
= switch_policy
,
943 .cmd
= SWITCH_CMD_GET_GLOBAL
,
944 .doit
= swconfig_get_attr
,
945 .policy
= switch_policy
,
948 .cmd
= SWITCH_CMD_GET_VLAN
,
949 .doit
= swconfig_get_attr
,
950 .policy
= switch_policy
,
953 .cmd
= SWITCH_CMD_GET_PORT
,
954 .doit
= swconfig_get_attr
,
955 .policy
= switch_policy
,
958 .cmd
= SWITCH_CMD_SET_GLOBAL
,
959 .doit
= swconfig_set_attr
,
960 .policy
= switch_policy
,
963 .cmd
= SWITCH_CMD_SET_VLAN
,
964 .doit
= swconfig_set_attr
,
965 .policy
= switch_policy
,
968 .cmd
= SWITCH_CMD_SET_PORT
,
969 .doit
= swconfig_set_attr
,
970 .policy
= switch_policy
,
973 .cmd
= SWITCH_CMD_GET_SWITCH
,
974 .dumpit
= swconfig_dump_switches
,
975 .policy
= switch_policy
,
976 .done
= swconfig_done
,
982 of_switch_load_portmap(struct switch_dev
*dev
)
984 struct device_node
*port
;
989 for_each_child_of_node(dev
->of_node
, port
) {
994 if (!of_device_is_compatible(port
, "swconfig,port"))
997 if (of_property_read_string(port
, "swconfig,segment", &segment
))
1000 prop
= of_get_property(port
, "swconfig,portmap", &size
);
1004 if (size
!= (2 * sizeof(*prop
))) {
1005 pr_err("%s: failed to parse port mapping\n",
1010 phys
= be32_to_cpup(prop
++);
1011 if ((phys
< 0) | (phys
>= dev
->ports
)) {
1012 pr_err("%s: physical port index out of range\n",
1017 dev
->portmap
[phys
].s
= kstrdup(segment
, GFP_KERNEL
);
1018 dev
->portmap
[phys
].virt
= be32_to_cpup(prop
);
1019 pr_debug("Found port: %s, physical: %d, virtual: %d\n",
1020 segment
, phys
, dev
->portmap
[phys
].virt
);
1026 register_switch(struct switch_dev
*dev
, struct net_device
*netdev
)
1028 struct switch_dev
*sdev
;
1029 const int max_switches
= 8 * sizeof(unsigned long);
1030 unsigned long in_use
= 0;
1034 INIT_LIST_HEAD(&dev
->dev_list
);
1036 dev
->netdev
= netdev
;
1038 dev
->alias
= netdev
->name
;
1040 BUG_ON(!dev
->alias
);
1042 if (dev
->ports
> 0) {
1043 dev
->portbuf
= kzalloc(sizeof(struct switch_port
) *
1044 dev
->ports
, GFP_KERNEL
);
1047 dev
->portmap
= kzalloc(sizeof(struct switch_portmap
) *
1048 dev
->ports
, GFP_KERNEL
);
1049 if (!dev
->portmap
) {
1050 kfree(dev
->portbuf
);
1054 swconfig_defaults_init(dev
);
1055 mutex_init(&dev
->sw_mutex
);
1057 dev
->id
= ++swdev_id
;
1059 list_for_each_entry(sdev
, &swdevs
, dev_list
) {
1060 if (!sscanf(sdev
->devname
, SWCONFIG_DEVNAME
, &i
))
1062 if (i
< 0 || i
> max_switches
)
1065 set_bit(i
, &in_use
);
1067 i
= find_first_zero_bit(&in_use
, max_switches
);
1069 if (i
== max_switches
) {
1076 of_switch_load_portmap(dev
);
1079 /* fill device name */
1080 snprintf(dev
->devname
, IFNAMSIZ
, SWCONFIG_DEVNAME
, i
);
1082 list_add(&dev
->dev_list
, &swdevs
);
1085 err
= swconfig_create_led_trigger(dev
);
1091 EXPORT_SYMBOL_GPL(register_switch
);
1094 unregister_switch(struct switch_dev
*dev
)
1096 swconfig_destroy_led_trigger(dev
);
1097 kfree(dev
->portbuf
);
1098 mutex_lock(&dev
->sw_mutex
);
1100 list_del(&dev
->dev_list
);
1102 mutex_unlock(&dev
->sw_mutex
);
1104 EXPORT_SYMBOL_GPL(unregister_switch
);
1112 INIT_LIST_HEAD(&swdevs
);
1114 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,13,0))
1115 err
= genl_register_family(&switch_fam
);
1119 for (i
= 0; i
< ARRAY_SIZE(swconfig_ops
); i
++) {
1120 err
= genl_register_ops(&switch_fam
, &swconfig_ops
[i
]);
1127 err
= genl_register_family_with_ops(&switch_fam
, swconfig_ops
);
1133 genl_unregister_family(&switch_fam
);
1140 genl_unregister_family(&switch_fam
);
1143 module_init(swconfig_init
);
1144 module_exit(swconfig_exit
);