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>
28 #define SWCONFIG_DEVNAME "switch%d"
30 #include "swconfig_leds.c"
32 MODULE_AUTHOR("Felix Fietkau <nbd@openwrt.org>");
33 MODULE_LICENSE("GPL");
36 static struct list_head swdevs
;
37 static DEFINE_SPINLOCK(swdevs_lock
);
38 struct swconfig_callback
;
40 struct swconfig_callback
{
42 struct genlmsghdr
*hdr
;
43 struct genl_info
*info
;
46 /* callback for filling in the message data */
47 int (*fill
)(struct swconfig_callback
*cb
, void *arg
);
49 /* callback for closing the message before sending it */
50 int (*close
)(struct swconfig_callback
*cb
, void *arg
);
52 struct nlattr
*nest
[4];
59 swconfig_get_vlan_ports(struct switch_dev
*dev
, const struct switch_attr
*attr
,
60 struct switch_val
*val
)
63 if (val
->port_vlan
>= dev
->vlans
)
66 if (!dev
->ops
->get_vlan_ports
)
69 ret
= dev
->ops
->get_vlan_ports(dev
, val
);
74 swconfig_set_vlan_ports(struct switch_dev
*dev
, const struct switch_attr
*attr
,
75 struct switch_val
*val
)
77 struct switch_port
*ports
= val
->value
.ports
;
78 const struct switch_dev_ops
*ops
= dev
->ops
;
81 if (val
->port_vlan
>= dev
->vlans
)
85 if (val
->len
> dev
->ports
)
88 if (!ops
->set_vlan_ports
)
91 for (i
= 0; i
< val
->len
; i
++) {
92 if (ports
[i
].id
>= dev
->ports
)
95 if (ops
->set_port_pvid
&&
96 !(ports
[i
].flags
& (1 << SWITCH_PORT_FLAG_TAGGED
)))
97 ops
->set_port_pvid(dev
, ports
[i
].id
, val
->port_vlan
);
100 return ops
->set_vlan_ports(dev
, val
);
104 swconfig_set_pvid(struct switch_dev
*dev
, const struct switch_attr
*attr
,
105 struct switch_val
*val
)
107 if (val
->port_vlan
>= dev
->ports
)
110 if (!dev
->ops
->set_port_pvid
)
113 return dev
->ops
->set_port_pvid(dev
, val
->port_vlan
, val
->value
.i
);
117 swconfig_get_pvid(struct switch_dev
*dev
, const struct switch_attr
*attr
,
118 struct switch_val
*val
)
120 if (val
->port_vlan
>= dev
->ports
)
123 if (!dev
->ops
->get_port_pvid
)
126 return dev
->ops
->get_port_pvid(dev
, val
->port_vlan
, &val
->value
.i
);
130 swconfig_speed_str(enum switch_port_speed speed
)
133 case SWITCH_PORT_SPEED_10
:
135 case SWITCH_PORT_SPEED_100
:
137 case SWITCH_PORT_SPEED_1000
:
147 swconfig_get_link(struct switch_dev
*dev
, const struct switch_attr
*attr
,
148 struct switch_val
*val
)
150 struct switch_port_link link
;
154 if (val
->port_vlan
>= dev
->ports
)
157 if (!dev
->ops
->get_port_link
)
160 memset(&link
, 0, sizeof(link
));
161 ret
= dev
->ops
->get_port_link(dev
, val
->port_vlan
, &link
);
165 memset(dev
->buf
, 0, sizeof(dev
->buf
));
168 len
= snprintf(dev
->buf
, sizeof(dev
->buf
),
169 "port:%d link:up speed:%s %s-duplex %s%s%s",
171 swconfig_speed_str(link
.speed
),
172 link
.duplex
? "full" : "half",
173 link
.tx_flow
? "txflow " : "",
174 link
.rx_flow
? "rxflow " : "",
175 link
.aneg
? "auto" : "");
177 len
= snprintf(dev
->buf
, sizeof(dev
->buf
), "port:%d link:down",
180 val
->value
.s
= dev
->buf
;
187 swconfig_apply_config(struct switch_dev
*dev
, const struct switch_attr
*attr
,
188 struct switch_val
*val
)
190 /* don't complain if not supported by the switch driver */
191 if (!dev
->ops
->apply_config
)
194 return dev
->ops
->apply_config(dev
);
198 swconfig_reset_switch(struct switch_dev
*dev
, const struct switch_attr
*attr
,
199 struct switch_val
*val
)
201 /* don't complain if not supported by the switch driver */
202 if (!dev
->ops
->reset_switch
)
205 return dev
->ops
->reset_switch(dev
);
208 enum global_defaults
{
222 static struct switch_attr default_global
[] = {
224 .type
= SWITCH_TYPE_NOVAL
,
226 .description
= "Activate changes in the hardware",
227 .set
= swconfig_apply_config
,
230 .type
= SWITCH_TYPE_NOVAL
,
232 .description
= "Reset the switch",
233 .set
= swconfig_reset_switch
,
237 static struct switch_attr default_port
[] = {
239 .type
= SWITCH_TYPE_INT
,
241 .description
= "Primary VLAN ID",
242 .set
= swconfig_set_pvid
,
243 .get
= swconfig_get_pvid
,
246 .type
= SWITCH_TYPE_STRING
,
248 .description
= "Get port link information",
250 .get
= swconfig_get_link
,
254 static struct switch_attr default_vlan
[] = {
256 .type
= SWITCH_TYPE_PORTS
,
258 .description
= "VLAN port mapping",
259 .set
= swconfig_set_vlan_ports
,
260 .get
= swconfig_get_vlan_ports
,
264 static const struct switch_attr
*
265 swconfig_find_attr_by_name(const struct switch_attrlist
*alist
,
270 for (i
= 0; i
< alist
->n_attr
; i
++)
271 if (strcmp(name
, alist
->attr
[i
].name
) == 0)
272 return &alist
->attr
[i
];
277 static void swconfig_defaults_init(struct switch_dev
*dev
)
279 const struct switch_dev_ops
*ops
= dev
->ops
;
285 if (ops
->get_vlan_ports
|| ops
->set_vlan_ports
)
286 set_bit(VLAN_PORTS
, &dev
->def_vlan
);
288 if (ops
->get_port_pvid
|| ops
->set_port_pvid
)
289 set_bit(PORT_PVID
, &dev
->def_port
);
291 if (ops
->get_port_link
&&
292 !swconfig_find_attr_by_name(&ops
->attr_port
, "link"))
293 set_bit(PORT_LINK
, &dev
->def_port
);
295 /* always present, can be no-op */
296 set_bit(GLOBAL_APPLY
, &dev
->def_global
);
297 set_bit(GLOBAL_RESET
, &dev
->def_global
);
301 static struct genl_family switch_fam
= {
302 .id
= GENL_ID_GENERATE
,
306 .maxattr
= SWITCH_ATTR_MAX
,
309 static const struct nla_policy switch_policy
[SWITCH_ATTR_MAX
+1] = {
310 [SWITCH_ATTR_ID
] = { .type
= NLA_U32
},
311 [SWITCH_ATTR_OP_ID
] = { .type
= NLA_U32
},
312 [SWITCH_ATTR_OP_PORT
] = { .type
= NLA_U32
},
313 [SWITCH_ATTR_OP_VLAN
] = { .type
= NLA_U32
},
314 [SWITCH_ATTR_OP_VALUE_INT
] = { .type
= NLA_U32
},
315 [SWITCH_ATTR_OP_VALUE_STR
] = { .type
= NLA_NUL_STRING
},
316 [SWITCH_ATTR_OP_VALUE_PORTS
] = { .type
= NLA_NESTED
},
317 [SWITCH_ATTR_TYPE
] = { .type
= NLA_U32
},
320 static const struct nla_policy port_policy
[SWITCH_PORT_ATTR_MAX
+1] = {
321 [SWITCH_PORT_ID
] = { .type
= NLA_U32
},
322 [SWITCH_PORT_FLAG_TAGGED
] = { .type
= NLA_FLAG
},
328 spin_lock(&swdevs_lock
);
332 swconfig_unlock(void)
334 spin_unlock(&swdevs_lock
);
337 static struct switch_dev
*
338 swconfig_get_dev(struct genl_info
*info
)
340 struct switch_dev
*dev
= NULL
;
341 struct switch_dev
*p
;
344 if (!info
->attrs
[SWITCH_ATTR_ID
])
347 id
= nla_get_u32(info
->attrs
[SWITCH_ATTR_ID
]);
349 list_for_each_entry(p
, &swdevs
, dev_list
) {
357 mutex_lock(&dev
->sw_mutex
);
359 pr_debug("device %d not found\n", id
);
366 swconfig_put_dev(struct switch_dev
*dev
)
368 mutex_unlock(&dev
->sw_mutex
);
372 swconfig_dump_attr(struct swconfig_callback
*cb
, void *arg
)
374 struct switch_attr
*op
= arg
;
375 struct genl_info
*info
= cb
->info
;
376 struct sk_buff
*msg
= cb
->msg
;
377 int id
= cb
->args
[0];
380 hdr
= genlmsg_put(msg
, info
->snd_portid
, info
->snd_seq
, &switch_fam
,
381 NLM_F_MULTI
, SWITCH_CMD_NEW_ATTR
);
385 if (nla_put_u32(msg
, SWITCH_ATTR_OP_ID
, id
))
386 goto nla_put_failure
;
387 if (nla_put_u32(msg
, SWITCH_ATTR_OP_TYPE
, op
->type
))
388 goto nla_put_failure
;
389 if (nla_put_string(msg
, SWITCH_ATTR_OP_NAME
, op
->name
))
390 goto nla_put_failure
;
392 if (nla_put_string(msg
, SWITCH_ATTR_OP_DESCRIPTION
,
394 goto nla_put_failure
;
396 return genlmsg_end(msg
, hdr
);
398 genlmsg_cancel(msg
, hdr
);
402 /* spread multipart messages across multiple message buffers */
404 swconfig_send_multipart(struct swconfig_callback
*cb
, void *arg
)
406 struct genl_info
*info
= cb
->info
;
412 cb
->msg
= nlmsg_new(NLMSG_GOODSIZE
, GFP_KERNEL
);
417 if (!(cb
->fill(cb
, arg
) < 0))
420 /* fill failed, check if this was already the second attempt */
424 /* try again in a new message, send the current one */
427 if (cb
->close(cb
, arg
) < 0)
430 err
= genlmsg_reply(cb
->msg
, info
);
446 swconfig_list_attrs(struct sk_buff
*skb
, struct genl_info
*info
)
448 struct genlmsghdr
*hdr
= nlmsg_data(info
->nlhdr
);
449 const struct switch_attrlist
*alist
;
450 struct switch_dev
*dev
;
451 struct swconfig_callback cb
;
456 struct switch_attr
*def_list
;
457 unsigned long *def_active
;
460 dev
= swconfig_get_dev(info
);
465 case SWITCH_CMD_LIST_GLOBAL
:
466 alist
= &dev
->ops
->attr_global
;
467 def_list
= default_global
;
468 def_active
= &dev
->def_global
;
469 n_def
= ARRAY_SIZE(default_global
);
471 case SWITCH_CMD_LIST_VLAN
:
472 alist
= &dev
->ops
->attr_vlan
;
473 def_list
= default_vlan
;
474 def_active
= &dev
->def_vlan
;
475 n_def
= ARRAY_SIZE(default_vlan
);
477 case SWITCH_CMD_LIST_PORT
:
478 alist
= &dev
->ops
->attr_port
;
479 def_list
= default_port
;
480 def_active
= &dev
->def_port
;
481 n_def
= ARRAY_SIZE(default_port
);
488 memset(&cb
, 0, sizeof(cb
));
490 cb
.fill
= swconfig_dump_attr
;
491 for (i
= 0; i
< alist
->n_attr
; i
++) {
492 if (alist
->attr
[i
].disabled
)
495 err
= swconfig_send_multipart(&cb
, (void *) &alist
->attr
[i
]);
501 for (i
= 0; i
< n_def
; i
++) {
502 if (!test_bit(i
, def_active
))
504 cb
.args
[0] = SWITCH_ATTR_DEFAULTS_OFFSET
+ i
;
505 err
= swconfig_send_multipart(&cb
, (void *) &def_list
[i
]);
509 swconfig_put_dev(dev
);
514 return genlmsg_reply(cb
.msg
, info
);
520 swconfig_put_dev(dev
);
524 static const struct switch_attr
*
525 swconfig_lookup_attr(struct switch_dev
*dev
, struct genl_info
*info
,
526 struct switch_val
*val
)
528 struct genlmsghdr
*hdr
= nlmsg_data(info
->nlhdr
);
529 const struct switch_attrlist
*alist
;
530 const struct switch_attr
*attr
= NULL
;
534 struct switch_attr
*def_list
;
535 unsigned long *def_active
;
538 if (!info
->attrs
[SWITCH_ATTR_OP_ID
])
542 case SWITCH_CMD_SET_GLOBAL
:
543 case SWITCH_CMD_GET_GLOBAL
:
544 alist
= &dev
->ops
->attr_global
;
545 def_list
= default_global
;
546 def_active
= &dev
->def_global
;
547 n_def
= ARRAY_SIZE(default_global
);
549 case SWITCH_CMD_SET_VLAN
:
550 case SWITCH_CMD_GET_VLAN
:
551 alist
= &dev
->ops
->attr_vlan
;
552 def_list
= default_vlan
;
553 def_active
= &dev
->def_vlan
;
554 n_def
= ARRAY_SIZE(default_vlan
);
555 if (!info
->attrs
[SWITCH_ATTR_OP_VLAN
])
557 val
->port_vlan
= nla_get_u32(info
->attrs
[SWITCH_ATTR_OP_VLAN
]);
558 if (val
->port_vlan
>= dev
->vlans
)
561 case SWITCH_CMD_SET_PORT
:
562 case SWITCH_CMD_GET_PORT
:
563 alist
= &dev
->ops
->attr_port
;
564 def_list
= default_port
;
565 def_active
= &dev
->def_port
;
566 n_def
= ARRAY_SIZE(default_port
);
567 if (!info
->attrs
[SWITCH_ATTR_OP_PORT
])
569 val
->port_vlan
= nla_get_u32(info
->attrs
[SWITCH_ATTR_OP_PORT
]);
570 if (val
->port_vlan
>= dev
->ports
)
581 attr_id
= nla_get_u32(info
->attrs
[SWITCH_ATTR_OP_ID
]);
582 if (attr_id
>= SWITCH_ATTR_DEFAULTS_OFFSET
) {
583 attr_id
-= SWITCH_ATTR_DEFAULTS_OFFSET
;
584 if (attr_id
>= n_def
)
586 if (!test_bit(attr_id
, def_active
))
588 attr
= &def_list
[attr_id
];
590 if (attr_id
>= alist
->n_attr
)
592 attr
= &alist
->attr
[attr_id
];
600 pr_debug("attribute lookup failed\n");
606 swconfig_parse_ports(struct sk_buff
*msg
, struct nlattr
*head
,
607 struct switch_val
*val
, int max
)
613 nla_for_each_nested(nla
, head
, rem
) {
614 struct nlattr
*tb
[SWITCH_PORT_ATTR_MAX
+1];
615 struct switch_port
*port
= &val
->value
.ports
[val
->len
];
620 if (nla_parse_nested(tb
, SWITCH_PORT_ATTR_MAX
, nla
,
624 if (!tb
[SWITCH_PORT_ID
])
627 port
->id
= nla_get_u32(tb
[SWITCH_PORT_ID
]);
628 if (tb
[SWITCH_PORT_FLAG_TAGGED
])
629 port
->flags
|= (1 << SWITCH_PORT_FLAG_TAGGED
);
637 swconfig_set_attr(struct sk_buff
*skb
, struct genl_info
*info
)
639 const struct switch_attr
*attr
;
640 struct switch_dev
*dev
;
641 struct switch_val val
;
644 dev
= swconfig_get_dev(info
);
648 memset(&val
, 0, sizeof(val
));
649 attr
= swconfig_lookup_attr(dev
, info
, &val
);
650 if (!attr
|| !attr
->set
)
654 switch (attr
->type
) {
655 case SWITCH_TYPE_NOVAL
:
657 case SWITCH_TYPE_INT
:
658 if (!info
->attrs
[SWITCH_ATTR_OP_VALUE_INT
])
661 nla_get_u32(info
->attrs
[SWITCH_ATTR_OP_VALUE_INT
]);
663 case SWITCH_TYPE_STRING
:
664 if (!info
->attrs
[SWITCH_ATTR_OP_VALUE_STR
])
667 nla_data(info
->attrs
[SWITCH_ATTR_OP_VALUE_STR
]);
669 case SWITCH_TYPE_PORTS
:
670 val
.value
.ports
= dev
->portbuf
;
671 memset(dev
->portbuf
, 0,
672 sizeof(struct switch_port
) * dev
->ports
);
674 /* TODO: implement multipart? */
675 if (info
->attrs
[SWITCH_ATTR_OP_VALUE_PORTS
]) {
676 err
= swconfig_parse_ports(skb
,
677 info
->attrs
[SWITCH_ATTR_OP_VALUE_PORTS
],
690 err
= attr
->set(dev
, attr
, &val
);
692 swconfig_put_dev(dev
);
697 swconfig_close_portlist(struct swconfig_callback
*cb
, void *arg
)
700 nla_nest_end(cb
->msg
, cb
->nest
[0]);
705 swconfig_send_port(struct swconfig_callback
*cb
, void *arg
)
707 const struct switch_port
*port
= arg
;
708 struct nlattr
*p
= NULL
;
711 cb
->nest
[0] = nla_nest_start(cb
->msg
, cb
->cmd
);
716 p
= nla_nest_start(cb
->msg
, SWITCH_ATTR_PORT
);
720 if (nla_put_u32(cb
->msg
, SWITCH_PORT_ID
, port
->id
))
721 goto nla_put_failure
;
722 if (port
->flags
& (1 << SWITCH_PORT_FLAG_TAGGED
)) {
723 if (nla_put_flag(cb
->msg
, SWITCH_PORT_FLAG_TAGGED
))
724 goto nla_put_failure
;
727 nla_nest_end(cb
->msg
, p
);
731 nla_nest_cancel(cb
->msg
, p
);
733 nla_nest_cancel(cb
->msg
, cb
->nest
[0]);
738 swconfig_send_ports(struct sk_buff
**msg
, struct genl_info
*info
, int attr
,
739 const struct switch_val
*val
)
741 struct swconfig_callback cb
;
745 if (!val
->value
.ports
)
748 memset(&cb
, 0, sizeof(cb
));
752 cb
.fill
= swconfig_send_port
;
753 cb
.close
= swconfig_close_portlist
;
755 cb
.nest
[0] = nla_nest_start(cb
.msg
, cb
.cmd
);
756 for (i
= 0; i
< val
->len
; i
++) {
757 err
= swconfig_send_multipart(&cb
, &val
->value
.ports
[i
]);
762 swconfig_close_portlist(&cb
, NULL
);
770 swconfig_get_attr(struct sk_buff
*skb
, struct genl_info
*info
)
772 struct genlmsghdr
*hdr
= nlmsg_data(info
->nlhdr
);
773 const struct switch_attr
*attr
;
774 struct switch_dev
*dev
;
775 struct sk_buff
*msg
= NULL
;
776 struct switch_val val
;
780 dev
= swconfig_get_dev(info
);
784 memset(&val
, 0, sizeof(val
));
785 attr
= swconfig_lookup_attr(dev
, info
, &val
);
786 if (!attr
|| !attr
->get
)
789 if (attr
->type
== SWITCH_TYPE_PORTS
) {
790 val
.value
.ports
= dev
->portbuf
;
791 memset(dev
->portbuf
, 0,
792 sizeof(struct switch_port
) * dev
->ports
);
795 err
= attr
->get(dev
, attr
, &val
);
799 msg
= nlmsg_new(NLMSG_GOODSIZE
, GFP_KERNEL
);
803 hdr
= genlmsg_put(msg
, info
->snd_portid
, info
->snd_seq
, &switch_fam
,
806 goto nla_put_failure
;
808 switch (attr
->type
) {
809 case SWITCH_TYPE_INT
:
810 if (nla_put_u32(msg
, SWITCH_ATTR_OP_VALUE_INT
, val
.value
.i
))
811 goto nla_put_failure
;
813 case SWITCH_TYPE_STRING
:
814 if (nla_put_string(msg
, SWITCH_ATTR_OP_VALUE_STR
, val
.value
.s
))
815 goto nla_put_failure
;
817 case SWITCH_TYPE_PORTS
:
818 err
= swconfig_send_ports(&msg
, info
,
819 SWITCH_ATTR_OP_VALUE_PORTS
, &val
);
821 goto nla_put_failure
;
824 pr_debug("invalid type in attribute\n");
828 err
= genlmsg_end(msg
, hdr
);
830 goto nla_put_failure
;
832 swconfig_put_dev(dev
);
833 return genlmsg_reply(msg
, info
);
839 swconfig_put_dev(dev
);
846 swconfig_send_switch(struct sk_buff
*msg
, u32 pid
, u32 seq
, int flags
,
847 const struct switch_dev
*dev
)
849 struct nlattr
*p
= NULL
, *m
= NULL
;
853 hdr
= genlmsg_put(msg
, pid
, seq
, &switch_fam
, flags
,
854 SWITCH_CMD_NEW_ATTR
);
858 if (nla_put_u32(msg
, SWITCH_ATTR_ID
, dev
->id
))
859 goto nla_put_failure
;
860 if (nla_put_string(msg
, SWITCH_ATTR_DEV_NAME
, dev
->devname
))
861 goto nla_put_failure
;
862 if (nla_put_string(msg
, SWITCH_ATTR_ALIAS
, dev
->alias
))
863 goto nla_put_failure
;
864 if (nla_put_string(msg
, SWITCH_ATTR_NAME
, dev
->name
))
865 goto nla_put_failure
;
866 if (nla_put_u32(msg
, SWITCH_ATTR_VLANS
, dev
->vlans
))
867 goto nla_put_failure
;
868 if (nla_put_u32(msg
, SWITCH_ATTR_PORTS
, dev
->ports
))
869 goto nla_put_failure
;
870 if (nla_put_u32(msg
, SWITCH_ATTR_CPU_PORT
, dev
->cpu_port
))
871 goto nla_put_failure
;
873 m
= nla_nest_start(msg
, SWITCH_ATTR_PORTMAP
);
875 goto nla_put_failure
;
876 for (i
= 0; i
< dev
->ports
; i
++) {
877 p
= nla_nest_start(msg
, SWITCH_ATTR_PORTS
);
880 if (dev
->portmap
[i
].s
) {
881 if (nla_put_string(msg
, SWITCH_PORTMAP_SEGMENT
,
883 goto nla_put_failure
;
884 if (nla_put_u32(msg
, SWITCH_PORTMAP_VIRT
,
885 dev
->portmap
[i
].virt
))
886 goto nla_put_failure
;
888 nla_nest_end(msg
, p
);
890 nla_nest_end(msg
, m
);
891 return genlmsg_end(msg
, hdr
);
893 genlmsg_cancel(msg
, hdr
);
897 static int swconfig_dump_switches(struct sk_buff
*skb
,
898 struct netlink_callback
*cb
)
900 struct switch_dev
*dev
;
901 int start
= cb
->args
[0];
905 list_for_each_entry(dev
, &swdevs
, dev_list
) {
908 if (swconfig_send_switch(skb
, NETLINK_CB(cb
->skb
).portid
,
909 cb
->nlh
->nlmsg_seq
, NLM_F_MULTI
,
920 swconfig_done(struct netlink_callback
*cb
)
925 static struct genl_ops swconfig_ops
[] = {
927 .cmd
= SWITCH_CMD_LIST_GLOBAL
,
928 .doit
= swconfig_list_attrs
,
929 .policy
= switch_policy
,
932 .cmd
= SWITCH_CMD_LIST_VLAN
,
933 .doit
= swconfig_list_attrs
,
934 .policy
= switch_policy
,
937 .cmd
= SWITCH_CMD_LIST_PORT
,
938 .doit
= swconfig_list_attrs
,
939 .policy
= switch_policy
,
942 .cmd
= SWITCH_CMD_GET_GLOBAL
,
943 .doit
= swconfig_get_attr
,
944 .policy
= switch_policy
,
947 .cmd
= SWITCH_CMD_GET_VLAN
,
948 .doit
= swconfig_get_attr
,
949 .policy
= switch_policy
,
952 .cmd
= SWITCH_CMD_GET_PORT
,
953 .doit
= swconfig_get_attr
,
954 .policy
= switch_policy
,
957 .cmd
= SWITCH_CMD_SET_GLOBAL
,
958 .doit
= swconfig_set_attr
,
959 .policy
= switch_policy
,
962 .cmd
= SWITCH_CMD_SET_VLAN
,
963 .doit
= swconfig_set_attr
,
964 .policy
= switch_policy
,
967 .cmd
= SWITCH_CMD_SET_PORT
,
968 .doit
= swconfig_set_attr
,
969 .policy
= switch_policy
,
972 .cmd
= SWITCH_CMD_GET_SWITCH
,
973 .dumpit
= swconfig_dump_switches
,
974 .policy
= switch_policy
,
975 .done
= swconfig_done
,
981 of_switch_load_portmap(struct switch_dev
*dev
)
983 struct device_node
*port
;
988 for_each_child_of_node(dev
->of_node
, port
) {
993 if (!of_device_is_compatible(port
, "swconfig,port"))
996 if (of_property_read_string(port
, "swconfig,segment", &segment
))
999 prop
= of_get_property(port
, "swconfig,portmap", &size
);
1003 if (size
!= (2 * sizeof(*prop
))) {
1004 pr_err("%s: failed to parse port mapping\n",
1009 phys
= be32_to_cpup(prop
++);
1010 if ((phys
< 0) | (phys
>= dev
->ports
)) {
1011 pr_err("%s: physical port index out of range\n",
1016 dev
->portmap
[phys
].s
= kstrdup(segment
, GFP_KERNEL
);
1017 dev
->portmap
[phys
].virt
= be32_to_cpup(prop
);
1018 pr_debug("Found port: %s, physical: %d, virtual: %d\n",
1019 segment
, phys
, dev
->portmap
[phys
].virt
);
1025 register_switch(struct switch_dev
*dev
, struct net_device
*netdev
)
1027 struct switch_dev
*sdev
;
1028 const int max_switches
= 8 * sizeof(unsigned long);
1029 unsigned long in_use
= 0;
1033 INIT_LIST_HEAD(&dev
->dev_list
);
1035 dev
->netdev
= netdev
;
1037 dev
->alias
= netdev
->name
;
1039 BUG_ON(!dev
->alias
);
1041 if (dev
->ports
> 0) {
1042 dev
->portbuf
= kzalloc(sizeof(struct switch_port
) *
1043 dev
->ports
, GFP_KERNEL
);
1046 dev
->portmap
= kzalloc(sizeof(struct switch_portmap
) *
1047 dev
->ports
, GFP_KERNEL
);
1048 if (!dev
->portmap
) {
1049 kfree(dev
->portbuf
);
1053 swconfig_defaults_init(dev
);
1054 mutex_init(&dev
->sw_mutex
);
1056 dev
->id
= ++swdev_id
;
1058 list_for_each_entry(sdev
, &swdevs
, dev_list
) {
1059 if (!sscanf(sdev
->devname
, SWCONFIG_DEVNAME
, &i
))
1061 if (i
< 0 || i
> max_switches
)
1064 set_bit(i
, &in_use
);
1066 i
= find_first_zero_bit(&in_use
, max_switches
);
1068 if (i
== max_switches
) {
1075 of_switch_load_portmap(dev
);
1078 /* fill device name */
1079 snprintf(dev
->devname
, IFNAMSIZ
, SWCONFIG_DEVNAME
, i
);
1081 list_add(&dev
->dev_list
, &swdevs
);
1084 err
= swconfig_create_led_trigger(dev
);
1090 EXPORT_SYMBOL_GPL(register_switch
);
1093 unregister_switch(struct switch_dev
*dev
)
1095 swconfig_destroy_led_trigger(dev
);
1096 kfree(dev
->portbuf
);
1097 mutex_lock(&dev
->sw_mutex
);
1099 list_del(&dev
->dev_list
);
1101 mutex_unlock(&dev
->sw_mutex
);
1103 EXPORT_SYMBOL_GPL(unregister_switch
);
1111 INIT_LIST_HEAD(&swdevs
);
1112 err
= genl_register_family(&switch_fam
);
1116 for (i
= 0; i
< ARRAY_SIZE(swconfig_ops
); i
++) {
1117 err
= genl_register_ops(&switch_fam
, &swconfig_ops
[i
]);
1125 genl_unregister_family(&switch_fam
);
1132 genl_unregister_family(&switch_fam
);
1135 module_init(swconfig_init
);
1136 module_exit(swconfig_exit
);