diff options
Diffstat (limited to 'target/linux/patches/2.6.32.2/swconfig.patch')
| -rw-r--r-- | target/linux/patches/2.6.32.2/swconfig.patch | 1075 |
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 |