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-rw-r--r--target/linux/patches/2.6.32.2/swconfig.patch1075
1 files changed, 1075 insertions, 0 deletions
diff --git a/target/linux/patches/2.6.32.2/swconfig.patch b/target/linux/patches/2.6.32.2/swconfig.patch
new file mode 100644
index 000000000..3297bb116
--- /dev/null
+++ b/target/linux/patches/2.6.32.2/swconfig.patch
@@ -0,0 +1,1075 @@
+diff -Nur linux-2.6.30.orig/drivers/net/phy/Kconfig linux-2.6.30/drivers/net/phy/Kconfig
+--- linux-2.6.30.orig/drivers/net/phy/Kconfig 2009-06-10 05:05:27.000000000 +0200
++++ linux-2.6.30/drivers/net/phy/Kconfig 2009-06-11 09:22:50.000000000 +0200
+@@ -13,6 +13,12 @@
+
+ if PHYLIB
+
++config SWCONFIG
++ tristate "Switch configuration API"
++ ---help---
++ Switch configuration API using netlink. This allows
++ you to configure the VLAN features of certain switches.
++
+ comment "MII PHY device drivers"
+
+ config MARVELL_PHY
+diff -Nur linux-2.6.30.orig/drivers/net/phy/Makefile linux-2.6.30/drivers/net/phy/Makefile
+--- linux-2.6.30.orig/drivers/net/phy/Makefile 2009-06-10 05:05:27.000000000 +0200
++++ linux-2.6.30/drivers/net/phy/Makefile 2009-06-11 09:22:50.000000000 +0200
+@@ -3,6 +3,7 @@
+ libphy-objs := phy.o phy_device.o mdio_bus.o
+
+ obj-$(CONFIG_PHYLIB) += libphy.o
++obj-$(CONFIG_SWCONFIG) += swconfig.o
+ obj-$(CONFIG_MARVELL_PHY) += marvell.o
+ obj-$(CONFIG_DAVICOM_PHY) += davicom.o
+ obj-$(CONFIG_CICADA_PHY) += cicada.o
+diff -Nur linux-2.6.30.orig/drivers/net/phy/swconfig.c linux-2.6.30/drivers/net/phy/swconfig.c
+--- linux-2.6.30.orig/drivers/net/phy/swconfig.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.30/drivers/net/phy/swconfig.c 2009-06-11 09:22:50.000000000 +0200
+@@ -0,0 +1,872 @@
++/*
++ * swconfig.c: Switch configuration API
++ *
++ * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version 2
++ * of the License, or (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ */
++
++#include <linux/types.h>
++#include <linux/module.h>
++#include <linux/init.h>
++#include <linux/list.h>
++#include <linux/if.h>
++#include <linux/if_ether.h>
++#include <linux/capability.h>
++#include <linux/skbuff.h>
++#include <linux/switch.h>
++
++//#define DEBUG 1
++#ifdef DEBUG
++#define DPRINTF(format, ...) printk("%s: " format, __func__, ##__VA_ARGS__)
++#else
++#define DPRINTF(...) do {} while(0)
++#endif
++
++MODULE_AUTHOR("Felix Fietkau <nbd@openwrt.org>");
++MODULE_LICENSE("GPL");
++
++static int swdev_id = 0;
++static struct list_head swdevs;
++static spinlock_t swdevs_lock = SPIN_LOCK_UNLOCKED;
++struct swconfig_callback;
++
++struct swconfig_callback
++{
++ struct sk_buff *msg;
++ struct genlmsghdr *hdr;
++ struct genl_info *info;
++ int cmd;
++
++ /* callback for filling in the message data */
++ int (*fill)(struct swconfig_callback *cb, void *arg);
++
++ /* callback for closing the message before sending it */
++ int (*close)(struct swconfig_callback *cb, void *arg);
++
++ struct nlattr *nest[4];
++ int args[4];
++};
++
++/* defaults */
++
++static int
++swconfig_get_vlan_ports(struct switch_dev *dev, struct switch_attr *attr, struct switch_val *val)
++{
++ int ret;
++ if (val->port_vlan >= dev->vlans)
++ return -EINVAL;
++
++ if (!dev->get_vlan_ports)
++ return -EOPNOTSUPP;
++
++ ret = dev->get_vlan_ports(dev, val);
++ printk("SET PORTS %d\n", val->len);
++ return ret;
++}
++
++static int
++swconfig_set_vlan_ports(struct switch_dev *dev, struct switch_attr *attr, struct switch_val *val)
++{
++ int i;
++
++ if (val->port_vlan >= dev->vlans)
++ return -EINVAL;
++
++ /* validate ports */
++ if (val->len > dev->ports)
++ return -EINVAL;
++
++ for (i = 0; i < val->len; i++) {
++ if (val->value.ports[i].id >= dev->ports)
++ return -EINVAL;
++ }
++
++ if (!dev->set_vlan_ports)
++ return -EOPNOTSUPP;
++
++ printk("SET PORTS %d\n", val->len);
++ return dev->set_vlan_ports(dev, val);
++}
++
++static int
++swconfig_apply_config(struct switch_dev *dev, struct switch_attr *attr, struct switch_val *val)
++{
++ /* don't complain if not supported by the switch driver */
++ if (!dev->apply_config)
++ return 0;
++
++ return dev->apply_config(dev);
++}
++
++
++enum global_defaults {
++ GLOBAL_APPLY,
++};
++
++enum vlan_defaults {
++ VLAN_PORTS,
++};
++
++enum port_defaults {
++ PORT_LINK,
++};
++
++static struct switch_attr default_global[] = {
++ [GLOBAL_APPLY] = {
++ .type = SWITCH_TYPE_NOVAL,
++ .name = "apply",
++ .description = "Activate changes in the hardware",
++ .set = swconfig_apply_config,
++ }
++};
++
++static struct switch_attr default_port[] = {
++ [PORT_LINK] = {
++ .type = SWITCH_TYPE_INT,
++ .name = "link",
++ .description = "Current link speed",
++ }
++};
++
++static struct switch_attr default_vlan[] = {
++ [VLAN_PORTS] = {
++ .type = SWITCH_TYPE_PORTS,
++ .name = "ports",
++ .description = "VLAN port mapping",
++ .set = swconfig_set_vlan_ports,
++ .get = swconfig_get_vlan_ports,
++ },
++};
++
++
++static void swconfig_defaults_init(struct switch_dev *dev)
++{
++ dev->def_global = 0;
++ dev->def_vlan = 0;
++ dev->def_port = 0;
++
++ if (dev->get_vlan_ports || dev->set_vlan_ports)
++ set_bit(VLAN_PORTS, &dev->def_vlan);
++
++ /* always present, can be no-op */
++ set_bit(GLOBAL_APPLY, &dev->def_global);
++}
++
++
++static struct genl_family switch_fam = {
++ .id = GENL_ID_GENERATE,
++ .name = "switch",
++ .hdrsize = 0,
++ .version = 1,
++ .maxattr = SWITCH_ATTR_MAX,
++};
++
++static const struct nla_policy switch_policy[SWITCH_ATTR_MAX+1] = {
++ [SWITCH_ATTR_ID] = { .type = NLA_U32 },
++ [SWITCH_ATTR_OP_ID] = { .type = NLA_U32 },
++ [SWITCH_ATTR_OP_PORT] = { .type = NLA_U32 },
++ [SWITCH_ATTR_OP_VLAN] = { .type = NLA_U32 },
++ [SWITCH_ATTR_OP_VALUE_INT] = { .type = NLA_U32 },
++ [SWITCH_ATTR_OP_VALUE_STR] = { .type = NLA_NUL_STRING },
++ [SWITCH_ATTR_OP_VALUE_PORTS] = { .type = NLA_NESTED },
++ [SWITCH_ATTR_TYPE] = { .type = NLA_U32 },
++};
++
++static const struct nla_policy port_policy[SWITCH_PORT_ATTR_MAX+1] = {
++ [SWITCH_PORT_ID] = { .type = NLA_U32 },
++ [SWITCH_PORT_FLAG_TAGGED] = { .type = NLA_FLAG },
++};
++
++static inline void
++swconfig_lock(void)
++{
++ spin_lock(&swdevs_lock);
++}
++
++static inline void
++swconfig_unlock(void)
++{
++ spin_unlock(&swdevs_lock);
++}
++
++static struct switch_dev *
++swconfig_get_dev(struct genl_info *info)
++{
++ struct switch_dev *dev = NULL;
++ struct switch_dev *p;
++ int id;
++
++ if (!info->attrs[SWITCH_ATTR_ID])
++ goto done;
++
++ id = nla_get_u32(info->attrs[SWITCH_ATTR_ID]);
++ swconfig_lock();
++ list_for_each_entry(p, &swdevs, dev_list) {
++ if (id != p->id)
++ continue;
++
++ dev = p;
++ break;
++ }
++ if (dev)
++ spin_lock(&dev->lock);
++ else
++ DPRINTF("device %d not found\n", id);
++ swconfig_unlock();
++done:
++ return dev;
++}
++
++static inline void
++swconfig_put_dev(struct switch_dev *dev)
++{
++ spin_unlock(&dev->lock);
++}
++
++static int
++swconfig_dump_attr(struct swconfig_callback *cb, void *arg)
++{
++ struct switch_attr *op = arg;
++ struct genl_info *info = cb->info;
++ struct sk_buff *msg = cb->msg;
++ int id = cb->args[0];
++ void *hdr;
++
++ hdr = genlmsg_put(msg, info->snd_pid, info->snd_seq, &switch_fam,
++ NLM_F_MULTI, SWITCH_CMD_NEW_ATTR);
++ if (IS_ERR(hdr))
++ return -1;
++
++ NLA_PUT_U32(msg, SWITCH_ATTR_OP_ID, id);
++ NLA_PUT_U32(msg, SWITCH_ATTR_OP_TYPE, op->type);
++ NLA_PUT_STRING(msg, SWITCH_ATTR_OP_NAME, op->name);
++ if (op->description)
++ NLA_PUT_STRING(msg, SWITCH_ATTR_OP_DESCRIPTION,
++ op->description);
++
++ return genlmsg_end(msg, hdr);
++nla_put_failure:
++ genlmsg_cancel(msg, hdr);
++ return -EMSGSIZE;
++}
++
++/* spread multipart messages across multiple message buffers */
++static int
++swconfig_send_multipart(struct swconfig_callback *cb, void *arg)
++{
++ struct genl_info *info = cb->info;
++ int restart = 0;
++ int err;
++
++ do {
++ if (!cb->msg) {
++ cb->msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
++ if (cb->msg == NULL)
++ goto error;
++ }
++
++ if (!(cb->fill(cb, arg) < 0))
++ break;
++
++ /* fill failed, check if this was already the second attempt */
++ if (restart)
++ goto error;
++
++ /* try again in a new message, send the current one */
++ restart = 1;
++ if (cb->close) {
++ if (cb->close(cb, arg) < 0)
++ goto error;
++ }
++ err = genlmsg_unicast(cb->msg, info->snd_pid);
++ cb->msg = NULL;
++ if (err < 0)
++ goto error;
++
++ } while (restart);
++
++ return 0;
++
++error:
++ if (cb->msg)
++ nlmsg_free(cb->msg);
++ return -1;
++}
++
++static int
++swconfig_list_attrs(struct sk_buff *skb, struct genl_info *info)
++{
++ struct genlmsghdr *hdr = nlmsg_data(info->nlhdr);
++ const struct switch_attrlist *alist;
++ struct switch_dev *dev;
++ struct swconfig_callback cb;
++ int err = -EINVAL;
++ int i;
++
++ /* defaults */
++ struct switch_attr *def_list;
++ unsigned long *def_active;
++ int n_def;
++
++ dev = swconfig_get_dev(info);
++ if (!dev)
++ return -EINVAL;
++
++ switch(hdr->cmd) {
++ case SWITCH_CMD_LIST_GLOBAL:
++ alist = &dev->attr_global;
++ def_list = default_global;
++ def_active = &dev->def_global;
++ n_def = ARRAY_SIZE(default_global);
++ break;
++ case SWITCH_CMD_LIST_VLAN:
++ alist = &dev->attr_vlan;
++ def_list = default_vlan;
++ def_active = &dev->def_vlan;
++ n_def = ARRAY_SIZE(default_vlan);
++ break;
++ case SWITCH_CMD_LIST_PORT:
++ alist = &dev->attr_port;
++ def_list = default_port;
++ def_active = &dev->def_port;
++ n_def = ARRAY_SIZE(default_port);
++ break;
++ default:
++ WARN_ON(1);
++ goto out;
++ }
++
++ memset(&cb, 0, sizeof(cb));
++ cb.info = info;
++ cb.fill = swconfig_dump_attr;
++ for (i = 0; i < alist->n_attr; i++) {
++ if (alist->attr[i].disabled)
++ continue;
++ cb.args[0] = i;
++ err = swconfig_send_multipart(&cb, &alist->attr[i]);
++ if (err < 0)
++ goto error;
++ }
++
++ /* defaults */
++ for (i = 0; i < n_def; i++) {
++ if (!test_bit(i, def_active))
++ continue;
++ cb.args[0] = SWITCH_ATTR_DEFAULTS_OFFSET + i;
++ err = swconfig_send_multipart(&cb, &def_list[i]);
++ if (err < 0)
++ goto error;
++ }
++ swconfig_put_dev(dev);
++
++ if (!cb.msg)
++ return 0;
++
++ return genlmsg_unicast(cb.msg, info->snd_pid);
++
++error:
++ if (cb.msg)
++ nlmsg_free(cb.msg);
++out:
++ swconfig_put_dev(dev);
++ return err;
++}
++
++static struct switch_attr *
++swconfig_lookup_attr(struct switch_dev *dev, struct genl_info *info,
++ struct switch_val *val)
++{
++ struct genlmsghdr *hdr = nlmsg_data(info->nlhdr);
++ const struct switch_attrlist *alist;
++ struct switch_attr *attr = NULL;
++ int attr_id;
++
++ /* defaults */
++ struct switch_attr *def_list;
++ unsigned long *def_active;
++ int n_def;
++
++ if (!info->attrs[SWITCH_ATTR_OP_ID])
++ goto done;
++
++ switch(hdr->cmd) {
++ case SWITCH_CMD_SET_GLOBAL:
++ case SWITCH_CMD_GET_GLOBAL:
++ alist = &dev->attr_global;
++ def_list = default_global;
++ def_active = &dev->def_global;
++ n_def = ARRAY_SIZE(default_global);
++ break;
++ case SWITCH_CMD_SET_VLAN:
++ case SWITCH_CMD_GET_VLAN:
++ alist = &dev->attr_vlan;
++ def_list = default_vlan;
++ def_active = &dev->def_vlan;
++ n_def = ARRAY_SIZE(default_vlan);
++ if (!info->attrs[SWITCH_ATTR_OP_VLAN])
++ goto done;
++ val->port_vlan = nla_get_u32(info->attrs[SWITCH_ATTR_OP_VLAN]);
++ break;
++ case SWITCH_CMD_SET_PORT:
++ case SWITCH_CMD_GET_PORT:
++ alist = &dev->attr_port;
++ def_list = default_port;
++ def_active = &dev->def_port;
++ n_def = ARRAY_SIZE(default_port);
++ if (!info->attrs[SWITCH_ATTR_OP_PORT])
++ goto done;
++ val->port_vlan = nla_get_u32(info->attrs[SWITCH_ATTR_OP_PORT]);
++ break;
++ default:
++ WARN_ON(1);
++ goto done;
++ }
++
++ if (!alist)
++ goto done;
++
++ attr_id = nla_get_u32(info->attrs[SWITCH_ATTR_OP_ID]);
++ if (attr_id >= SWITCH_ATTR_DEFAULTS_OFFSET) {
++ attr_id -= SWITCH_ATTR_DEFAULTS_OFFSET;
++ if (attr_id >= n_def)
++ goto done;
++ if (!test_bit(attr_id, def_active))
++ goto done;
++ attr = &def_list[attr_id];
++ } else {
++ if (attr_id >= alist->n_attr)
++ goto done;
++ attr = &alist->attr[attr_id];
++ }
++
++ if (attr->disabled)
++ attr = NULL;
++
++done:
++ if (!attr)
++ DPRINTF("attribute lookup failed\n");
++ val->attr = attr;
++ return attr;
++}
++
++static int
++swconfig_parse_ports(struct sk_buff *msg, struct nlattr *head,
++ struct switch_val *val, int max)
++{
++ struct nlattr *nla;
++ int rem;
++
++ val->len = 0;
++ nla_for_each_nested(nla, head, rem) {
++ struct nlattr *tb[SWITCH_PORT_ATTR_MAX+1];
++ struct switch_port *port = &val->value.ports[val->len];
++
++ if (val->len >= max)
++ return -EINVAL;
++
++ if (nla_parse_nested(tb, SWITCH_PORT_ATTR_MAX, nla,
++ port_policy))
++ return -EINVAL;
++
++ if (!tb[SWITCH_PORT_ID])
++ return -EINVAL;
++
++ port->id = nla_get_u32(tb[SWITCH_PORT_ID]);
++ if (tb[SWITCH_PORT_FLAG_TAGGED])
++ port->flags |= (1 << SWITCH_PORT_FLAG_TAGGED);
++ val->len++;
++ }
++
++ return 0;
++}
++
++static int
++swconfig_set_attr(struct sk_buff *skb, struct genl_info *info)
++{
++ struct switch_attr *attr;
++ struct switch_dev *dev;
++ struct switch_val val;
++ int err = -EINVAL;
++
++ dev = swconfig_get_dev(info);
++ if (!dev)
++ return -EINVAL;
++
++ memset(&val, 0, sizeof(val));
++ attr = swconfig_lookup_attr(dev, info, &val);
++ if (!attr || !attr->set)
++ goto error;
++
++ val.attr = attr;
++ switch(attr->type) {
++ case SWITCH_TYPE_NOVAL:
++ break;
++ case SWITCH_TYPE_INT:
++ if (!info->attrs[SWITCH_ATTR_OP_VALUE_INT])
++ goto error;
++ val.value.i =
++ nla_get_u32(info->attrs[SWITCH_ATTR_OP_VALUE_INT]);
++ break;
++ case SWITCH_TYPE_STRING:
++ if (!info->attrs[SWITCH_ATTR_OP_VALUE_STR])
++ goto error;
++ val.value.s =
++ nla_data(info->attrs[SWITCH_ATTR_OP_VALUE_STR]);
++ break;
++ case SWITCH_TYPE_PORTS:
++ val.value.ports = dev->portbuf;
++ memset(dev->portbuf, 0,
++ sizeof(struct switch_port) * dev->ports);
++
++ /* TODO: implement multipart? */
++ if (info->attrs[SWITCH_ATTR_OP_VALUE_PORTS]) {
++ err = swconfig_parse_ports(skb,
++ info->attrs[SWITCH_ATTR_OP_VALUE_PORTS], &val, dev->ports);
++ if (err < 0)
++ goto error;
++ } else {
++ val.len = 0;
++ err = 0;
++ }
++ break;
++ default:
++ goto error;
++ }
++
++ err = attr->set(dev, attr, &val);
++error:
++ swconfig_put_dev(dev);
++ return err;
++}
++
++static int
++swconfig_close_portlist(struct swconfig_callback *cb, void *arg)
++{
++ if (cb->nest[0])
++ nla_nest_end(cb->msg, cb->nest[0]);
++ return 0;
++}
++
++static int
++swconfig_send_port(struct swconfig_callback *cb, void *arg)
++{
++ const struct switch_port *port = arg;
++ struct nlattr *p = NULL;
++
++ if (!cb->nest[0]) {
++ cb->nest[0] = nla_nest_start(cb->msg, cb->cmd);
++ if (!cb->nest[0])
++ return -1;
++ }
++
++ p = nla_nest_start(cb->msg, SWITCH_ATTR_PORT);
++ if (!p)
++ goto error;
++
++ NLA_PUT_U32(cb->msg, SWITCH_PORT_ID, port->id);
++ if (port->flags & (1 << SWITCH_PORT_FLAG_TAGGED))
++ NLA_PUT_FLAG(cb->msg, SWITCH_PORT_FLAG_TAGGED);
++
++ nla_nest_end(cb->msg, p);
++ return 0;
++
++nla_put_failure:
++ nla_nest_cancel(cb->msg, p);
++error:
++ nla_nest_cancel(cb->msg, cb->nest[0]);
++ return -1;
++}
++
++static int
++swconfig_send_ports(struct sk_buff **msg, struct genl_info *info, int attr,
++ const struct switch_val *val)
++{
++ struct swconfig_callback cb;
++ int err = 0;
++ int i;
++
++ if (!val->value.ports)
++ return -EINVAL;
++
++ memset(&cb, 0, sizeof(cb));
++ cb.cmd = attr;
++ cb.msg = *msg;
++ cb.info = info;
++ cb.fill = swconfig_send_port;
++ cb.close = swconfig_close_portlist;
++
++ cb.nest[0] = nla_nest_start(cb.msg, cb.cmd);
++ for (i = 0; i < val->len; i++) {
++ err = swconfig_send_multipart(&cb, &val->value.ports[i]);
++ if (err)
++ goto done;
++ }
++ err = val->len;
++ swconfig_close_portlist(&cb, NULL);
++ *msg = cb.msg;
++
++done:
++ return err;
++}
++
++static int
++swconfig_get_attr(struct sk_buff *skb, struct genl_info *info)
++{
++ struct genlmsghdr *hdr = nlmsg_data(info->nlhdr);
++ struct switch_attr *attr;
++ struct switch_dev *dev;
++ struct sk_buff *msg = NULL;
++ struct switch_val val;
++ int err = -EINVAL;
++ int cmd = hdr->cmd;
++
++ dev = swconfig_get_dev(info);
++ if (!dev)
++ return -EINVAL;
++
++ memset(&val, 0, sizeof(val));
++ attr = swconfig_lookup_attr(dev, info, &val);
++ if (!attr || !attr->get)
++ goto error_dev;
++
++ if (attr->type == SWITCH_TYPE_PORTS) {
++ val.value.ports = dev->portbuf;
++ memset(dev->portbuf, 0,
++ sizeof(struct switch_port) * dev->ports);
++ }
++
++ err = attr->get(dev, attr, &val);
++ if (err)
++ goto error;
++
++ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
++ if (!msg)
++ goto error;
++
++ hdr = genlmsg_put(msg, info->snd_pid, info->snd_seq, &switch_fam,
++ 0, cmd);
++ if (IS_ERR(hdr))
++ goto nla_put_failure;
++
++ switch(attr->type) {
++ case SWITCH_TYPE_INT:
++ NLA_PUT_U32(msg, SWITCH_ATTR_OP_VALUE_INT, val.value.i);
++ break;
++ case SWITCH_TYPE_STRING:
++ NLA_PUT_STRING(msg, SWITCH_ATTR_OP_VALUE_STR, val.value.s);
++ break;
++ case SWITCH_TYPE_PORTS:
++ err = swconfig_send_ports(&msg, info,
++ SWITCH_ATTR_OP_VALUE_PORTS, &val);
++ if (err < 0)
++ goto nla_put_failure;
++ break;
++ default:
++ DPRINTF("invalid type in attribute\n");
++ err = -EINVAL;
++ goto error;
++ }
++ err = genlmsg_end(msg, hdr);
++ if (err < 0)
++ goto nla_put_failure;
++
++ swconfig_put_dev(dev);
++ return genlmsg_unicast(msg, info->snd_pid);
++
++nla_put_failure:
++ if (msg)
++ nlmsg_free(msg);
++error_dev:
++ swconfig_put_dev(dev);
++error:
++ if (!err)
++ err = -ENOMEM;
++ return err;
++}
++
++static int
++swconfig_send_switch(struct sk_buff *msg, u32 pid, u32 seq, int flags,
++ const struct switch_dev *dev)
++{
++ void *hdr;
++
++ hdr = genlmsg_put(msg, pid, seq, &switch_fam, flags,
++ SWITCH_CMD_NEW_ATTR);
++ if (IS_ERR(hdr))
++ return -1;
++
++ NLA_PUT_U32(msg, SWITCH_ATTR_ID, dev->id);
++ NLA_PUT_STRING(msg, SWITCH_ATTR_NAME, dev->name);
++ NLA_PUT_STRING(msg, SWITCH_ATTR_DEV_NAME, dev->devname);
++ NLA_PUT_U32(msg, SWITCH_ATTR_VLANS, dev->vlans);
++ NLA_PUT_U32(msg, SWITCH_ATTR_PORTS, dev->ports);
++
++ return genlmsg_end(msg, hdr);
++nla_put_failure:
++ genlmsg_cancel(msg, hdr);
++ return -EMSGSIZE;
++}
++
++static int swconfig_dump_switches(struct sk_buff *skb,
++ struct netlink_callback *cb)
++{
++ struct switch_dev *dev;
++ int start = cb->args[0];
++ int idx = 0;
++
++ swconfig_lock();
++ list_for_each_entry(dev, &swdevs, dev_list) {
++ if (++idx <= start)
++ continue;
++ if (swconfig_send_switch(skb, NETLINK_CB(cb->skb).pid,
++ cb->nlh->nlmsg_seq, NLM_F_MULTI,
++ dev) < 0)
++ break;
++ }
++ swconfig_unlock();
++ cb->args[0] = idx;
++
++ return skb->len;
++}
++
++static int
++swconfig_done(struct netlink_callback *cb)
++{
++ return 0;
++}
++
++static struct genl_ops swconfig_ops[] = {
++ {
++ .cmd = SWITCH_CMD_LIST_GLOBAL,
++ .doit = swconfig_list_attrs,
++ .policy = switch_policy,
++ },
++ {
++ .cmd = SWITCH_CMD_LIST_VLAN,
++ .doit = swconfig_list_attrs,
++ .policy = switch_policy,
++ },
++ {
++ .cmd = SWITCH_CMD_LIST_PORT,
++ .doit = swconfig_list_attrs,
++ .policy = switch_policy,
++ },
++ {
++ .cmd = SWITCH_CMD_GET_GLOBAL,
++ .doit = swconfig_get_attr,
++ .policy = switch_policy,
++ },
++ {
++ .cmd = SWITCH_CMD_GET_VLAN,
++ .doit = swconfig_get_attr,
++ .policy = switch_policy,
++ },
++ {
++ .cmd = SWITCH_CMD_GET_PORT,
++ .doit = swconfig_get_attr,
++ .policy = switch_policy,
++ },
++ {
++ .cmd = SWITCH_CMD_SET_GLOBAL,
++ .doit = swconfig_set_attr,
++ .policy = switch_policy,
++ },
++ {
++ .cmd = SWITCH_CMD_SET_VLAN,
++ .doit = swconfig_set_attr,
++ .policy = switch_policy,
++ },
++ {
++ .cmd = SWITCH_CMD_SET_PORT,
++ .doit = swconfig_set_attr,
++ .policy = switch_policy,
++ },
++ {
++ .cmd = SWITCH_CMD_GET_SWITCH,
++ .dumpit = swconfig_dump_switches,
++ .policy = switch_policy,
++ .done = swconfig_done,
++ }
++};
++
++int
++register_switch(struct switch_dev *dev, struct net_device *netdev)
++{
++ INIT_LIST_HEAD(&dev->dev_list);
++ if (netdev) {
++ dev->netdev = netdev;
++ if (!dev->devname)
++ dev->devname = netdev->name;
++ }
++ BUG_ON(!dev->devname);
++
++ if (dev->ports > 0) {
++ dev->portbuf = kzalloc(sizeof(struct switch_port) * dev->ports,
++ GFP_KERNEL);
++ if (!dev->portbuf)
++ return -ENOMEM;
++ }
++ dev->id = ++swdev_id;
++ swconfig_defaults_init(dev);
++ spin_lock_init(&dev->lock);
++ swconfig_lock();
++ list_add(&dev->dev_list, &swdevs);
++ swconfig_unlock();
++
++ return 0;
++}
++EXPORT_SYMBOL_GPL(register_switch);
++
++void
++unregister_switch(struct switch_dev *dev)
++{
++ kfree(dev->portbuf);
++ spin_lock(&dev->lock);
++ swconfig_lock();
++ list_del(&dev->dev_list);
++ swconfig_unlock();
++}
++EXPORT_SYMBOL_GPL(unregister_switch);
++
++
++static int __init
++swconfig_init(void)
++{
++ int i, err;
++
++ INIT_LIST_HEAD(&swdevs);
++ err = genl_register_family(&switch_fam);
++ if (err)
++ return err;
++
++ for (i = 0; i < ARRAY_SIZE(swconfig_ops); i++) {
++ err = genl_register_ops(&switch_fam, &swconfig_ops[i]);
++ if (err)
++ goto unregister;
++ }
++
++ return 0;
++
++unregister:
++ genl_unregister_family(&switch_fam);
++ return err;
++}
++
++static void __exit
++swconfig_exit(void)
++{
++ genl_unregister_family(&switch_fam);
++}
++
++module_init(swconfig_init);
++module_exit(swconfig_exit);
++
+diff -Nur linux-2.6.30.orig/include/linux/switch.h linux-2.6.30/include/linux/switch.h
+--- linux-2.6.30.orig/include/linux/switch.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.30/include/linux/switch.h 2009-06-11 09:22:50.000000000 +0200
+@@ -0,0 +1,168 @@
++/*
++ * switch.h: Switch configuration API
++ *
++ * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version 2
++ * of the License, or (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ */
++
++#ifndef __LINUX_SWITCH_H
++#define __LINUX_SWITCH_H
++
++#include <linux/types.h>
++#include <linux/netdevice.h>
++#include <linux/netlink.h>
++#include <linux/genetlink.h>
++#ifndef __KERNEL__
++#include <netlink/netlink.h>
++#include <netlink/genl/genl.h>
++#include <netlink/genl/ctrl.h>
++#else
++#include <net/genetlink.h>
++#endif
++
++/* main attributes */
++enum {
++ SWITCH_ATTR_UNSPEC,
++ /* global */
++ SWITCH_ATTR_TYPE,
++ /* device */
++ SWITCH_ATTR_ID,
++ SWITCH_ATTR_NAME,
++ SWITCH_ATTR_DEV_NAME,
++ SWITCH_ATTR_VLANS,
++ SWITCH_ATTR_PORTS,
++ /* attributes */
++ SWITCH_ATTR_OP_ID,
++ SWITCH_ATTR_OP_TYPE,
++ SWITCH_ATTR_OP_NAME,
++ SWITCH_ATTR_OP_PORT,
++ SWITCH_ATTR_OP_VLAN,
++ SWITCH_ATTR_OP_VALUE_INT,
++ SWITCH_ATTR_OP_VALUE_STR,
++ SWITCH_ATTR_OP_VALUE_PORTS,
++ SWITCH_ATTR_OP_DESCRIPTION,
++ /* port lists */
++ SWITCH_ATTR_PORT,
++ SWITCH_ATTR_MAX
++};
++
++/* commands */
++enum {
++ SWITCH_CMD_UNSPEC,
++ SWITCH_CMD_GET_SWITCH,
++ SWITCH_CMD_NEW_ATTR,
++ SWITCH_CMD_LIST_GLOBAL,
++ SWITCH_CMD_GET_GLOBAL,
++ SWITCH_CMD_SET_GLOBAL,
++ SWITCH_CMD_LIST_PORT,
++ SWITCH_CMD_GET_PORT,
++ SWITCH_CMD_SET_PORT,
++ SWITCH_CMD_LIST_VLAN,
++ SWITCH_CMD_GET_VLAN,
++ SWITCH_CMD_SET_VLAN
++};
++
++/* data types */
++enum switch_val_type {
++ SWITCH_TYPE_UNSPEC,
++ SWITCH_TYPE_INT,
++ SWITCH_TYPE_STRING,
++ SWITCH_TYPE_PORTS,
++ SWITCH_TYPE_NOVAL,
++};
++
++/* port nested attributes */
++enum {
++ SWITCH_PORT_UNSPEC,
++ SWITCH_PORT_ID,
++ SWITCH_PORT_FLAG_TAGGED,
++ SWITCH_PORT_ATTR_MAX
++};
++
++#define SWITCH_ATTR_DEFAULTS_OFFSET 0x1000
++
++#ifdef __KERNEL__
++
++struct switch_dev;
++struct switch_op;
++struct switch_val;
++struct switch_attr;
++struct switch_attrlist;
++
++int register_switch(struct switch_dev *dev, struct net_device *netdev);
++void unregister_switch(struct switch_dev *dev);
++
++struct switch_attrlist {
++ /* filled in by the driver */
++ int n_attr;
++ struct switch_attr *attr;
++};
++
++
++struct switch_dev {
++ int id;
++ void *priv;
++ const char *name;
++
++ /* NB: either devname or netdev must be set */
++ const char *devname;
++ struct net_device *netdev;
++
++ int ports;
++ int vlans;
++ int cpu_port;
++ struct switch_attrlist attr_global, attr_port, attr_vlan;
++
++ spinlock_t lock;
++ struct switch_port *portbuf;
++ struct list_head dev_list;
++ unsigned long def_global, def_port, def_vlan;
++
++ int (*get_vlan_ports)(struct switch_dev *dev, struct switch_val *val);
++ int (*set_vlan_ports)(struct switch_dev *dev, struct switch_val *val);
++ int (*apply_config)(struct switch_dev *dev);
++};
++
++struct switch_port {
++ u32 id;
++ u32 flags;
++};
++
++struct switch_val {
++ struct switch_attr *attr;
++ int port_vlan;
++ int len;
++ union {
++ const char *s;
++ u32 i;
++ struct switch_port *ports;
++ } value;
++};
++
++struct switch_attr {
++ int disabled;
++ int type;
++ const char *name;
++ const char *description;
++
++ int (*set)(struct switch_dev *dev, struct switch_attr *attr, struct switch_val *val);
++ int (*get)(struct switch_dev *dev, struct switch_attr *attr, struct switch_val *val);
++
++ /* for driver internal use */
++ int id;
++ int ofs;
++ int max;
++};
++
++#endif
++
++#endif