diff options
Diffstat (limited to 'net/dsa/dsa.c')
| -rw-r--r-- | net/dsa/dsa.c | 939 |
1 files changed, 939 insertions, 0 deletions
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c new file mode 100644 index 000000000..392e29a02 --- /dev/null +++ b/net/dsa/dsa.c @@ -0,0 +1,939 @@ +/* + * net/dsa/dsa.c - Hardware switch handling + * Copyright (c) 2008-2009 Marvell Semiconductor + * Copyright (c) 2013 Florian Fainelli <florian@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. + */ + +#include <linux/ctype.h> +#include <linux/device.h> +#include <linux/hwmon.h> +#include <linux/list.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <net/dsa.h> +#include <linux/of.h> +#include <linux/of_mdio.h> +#include <linux/of_platform.h> +#include <linux/of_net.h> +#include <linux/sysfs.h> +#include "dsa_priv.h" + +char dsa_driver_version[] = "0.1"; + + +/* switch driver registration ***********************************************/ +static DEFINE_MUTEX(dsa_switch_drivers_mutex); +static LIST_HEAD(dsa_switch_drivers); + +void register_switch_driver(struct dsa_switch_driver *drv) +{ + mutex_lock(&dsa_switch_drivers_mutex); + list_add_tail(&drv->list, &dsa_switch_drivers); + mutex_unlock(&dsa_switch_drivers_mutex); +} +EXPORT_SYMBOL_GPL(register_switch_driver); + +void unregister_switch_driver(struct dsa_switch_driver *drv) +{ + mutex_lock(&dsa_switch_drivers_mutex); + list_del_init(&drv->list); + mutex_unlock(&dsa_switch_drivers_mutex); +} +EXPORT_SYMBOL_GPL(unregister_switch_driver); + +static struct dsa_switch_driver * +dsa_switch_probe(struct device *host_dev, int sw_addr, char **_name) +{ + struct dsa_switch_driver *ret; + struct list_head *list; + char *name; + + ret = NULL; + name = NULL; + + mutex_lock(&dsa_switch_drivers_mutex); + list_for_each(list, &dsa_switch_drivers) { + struct dsa_switch_driver *drv; + + drv = list_entry(list, struct dsa_switch_driver, list); + + name = drv->probe(host_dev, sw_addr); + if (name != NULL) { + ret = drv; + break; + } + } + mutex_unlock(&dsa_switch_drivers_mutex); + + *_name = name; + + return ret; +} + +/* hwmon support ************************************************************/ + +#ifdef CONFIG_NET_DSA_HWMON + +static ssize_t temp1_input_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct dsa_switch *ds = dev_get_drvdata(dev); + int temp, ret; + + ret = ds->drv->get_temp(ds, &temp); + if (ret < 0) + return ret; + + return sprintf(buf, "%d\n", temp * 1000); +} +static DEVICE_ATTR_RO(temp1_input); + +static ssize_t temp1_max_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct dsa_switch *ds = dev_get_drvdata(dev); + int temp, ret; + + ret = ds->drv->get_temp_limit(ds, &temp); + if (ret < 0) + return ret; + + return sprintf(buf, "%d\n", temp * 1000); +} + +static ssize_t temp1_max_store(struct device *dev, + struct device_attribute *attr, const char *buf, + size_t count) +{ + struct dsa_switch *ds = dev_get_drvdata(dev); + int temp, ret; + + ret = kstrtoint(buf, 0, &temp); + if (ret < 0) + return ret; + + ret = ds->drv->set_temp_limit(ds, DIV_ROUND_CLOSEST(temp, 1000)); + if (ret < 0) + return ret; + + return count; +} +static DEVICE_ATTR_RW(temp1_max); + +static ssize_t temp1_max_alarm_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct dsa_switch *ds = dev_get_drvdata(dev); + bool alarm; + int ret; + + ret = ds->drv->get_temp_alarm(ds, &alarm); + if (ret < 0) + return ret; + + return sprintf(buf, "%d\n", alarm); +} +static DEVICE_ATTR_RO(temp1_max_alarm); + +static struct attribute *dsa_hwmon_attrs[] = { + &dev_attr_temp1_input.attr, /* 0 */ + &dev_attr_temp1_max.attr, /* 1 */ + &dev_attr_temp1_max_alarm.attr, /* 2 */ + NULL +}; + +static umode_t dsa_hwmon_attrs_visible(struct kobject *kobj, + struct attribute *attr, int index) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct dsa_switch *ds = dev_get_drvdata(dev); + struct dsa_switch_driver *drv = ds->drv; + umode_t mode = attr->mode; + + if (index == 1) { + if (!drv->get_temp_limit) + mode = 0; + else if (!drv->set_temp_limit) + mode &= ~S_IWUSR; + } else if (index == 2 && !drv->get_temp_alarm) { + mode = 0; + } + return mode; +} + +static const struct attribute_group dsa_hwmon_group = { + .attrs = dsa_hwmon_attrs, + .is_visible = dsa_hwmon_attrs_visible, +}; +__ATTRIBUTE_GROUPS(dsa_hwmon); + +#endif /* CONFIG_NET_DSA_HWMON */ + +/* basic switch operations **************************************************/ +static int dsa_switch_setup_one(struct dsa_switch *ds, struct device *parent) +{ + struct dsa_switch_driver *drv = ds->drv; + struct dsa_switch_tree *dst = ds->dst; + struct dsa_chip_data *pd = ds->pd; + bool valid_name_found = false; + int index = ds->index; + int i, ret; + + /* + * Validate supplied switch configuration. + */ + for (i = 0; i < DSA_MAX_PORTS; i++) { + char *name; + + name = pd->port_names[i]; + if (name == NULL) + continue; + + if (!strcmp(name, "cpu")) { + if (dst->cpu_switch != -1) { + netdev_err(dst->master_netdev, + "multiple cpu ports?!\n"); + ret = -EINVAL; + goto out; + } + dst->cpu_switch = index; + dst->cpu_port = i; + } else if (!strcmp(name, "dsa")) { + ds->dsa_port_mask |= 1 << i; + } else { + ds->phys_port_mask |= 1 << i; + } + valid_name_found = true; + } + + if (!valid_name_found && i == DSA_MAX_PORTS) { + ret = -EINVAL; + goto out; + } + + /* Make the built-in MII bus mask match the number of ports, + * switch drivers can override this later + */ + ds->phys_mii_mask = ds->phys_port_mask; + + /* + * If the CPU connects to this switch, set the switch tree + * tagging protocol to the preferred tagging format of this + * switch. + */ + if (dst->cpu_switch == index) { + switch (ds->tag_protocol) { +#ifdef CONFIG_NET_DSA_TAG_DSA + case DSA_TAG_PROTO_DSA: + dst->rcv = dsa_netdev_ops.rcv; + break; +#endif +#ifdef CONFIG_NET_DSA_TAG_EDSA + case DSA_TAG_PROTO_EDSA: + dst->rcv = edsa_netdev_ops.rcv; + break; +#endif +#ifdef CONFIG_NET_DSA_TAG_TRAILER + case DSA_TAG_PROTO_TRAILER: + dst->rcv = trailer_netdev_ops.rcv; + break; +#endif +#ifdef CONFIG_NET_DSA_TAG_BRCM + case DSA_TAG_PROTO_BRCM: + dst->rcv = brcm_netdev_ops.rcv; + break; +#endif + case DSA_TAG_PROTO_NONE: + break; + default: + ret = -ENOPROTOOPT; + goto out; + } + + dst->tag_protocol = ds->tag_protocol; + } + + /* + * Do basic register setup. + */ + ret = drv->setup(ds); + if (ret < 0) + goto out; + + ret = drv->set_addr(ds, dst->master_netdev->dev_addr); + if (ret < 0) + goto out; + + ds->slave_mii_bus = mdiobus_alloc(); + if (ds->slave_mii_bus == NULL) { + ret = -ENOMEM; + goto out; + } + dsa_slave_mii_bus_init(ds); + + ret = mdiobus_register(ds->slave_mii_bus); + if (ret < 0) + goto out_free; + + + /* + * Create network devices for physical switch ports. + */ + for (i = 0; i < DSA_MAX_PORTS; i++) { + if (!(ds->phys_port_mask & (1 << i))) + continue; + + ret = dsa_slave_create(ds, parent, i, pd->port_names[i]); + if (ret < 0) { + netdev_err(dst->master_netdev, "[%d]: can't create dsa slave device for port %d(%s)\n", + index, i, pd->port_names[i]); + ret = 0; + } + } + +#ifdef CONFIG_NET_DSA_HWMON + /* If the switch provides a temperature sensor, + * register with hardware monitoring subsystem. + * Treat registration error as non-fatal and ignore it. + */ + if (drv->get_temp) { + const char *netname = netdev_name(dst->master_netdev); + char hname[IFNAMSIZ + 1]; + int i, j; + + /* Create valid hwmon 'name' attribute */ + for (i = j = 0; i < IFNAMSIZ && netname[i]; i++) { + if (isalnum(netname[i])) + hname[j++] = netname[i]; + } + hname[j] = '\0'; + scnprintf(ds->hwmon_name, sizeof(ds->hwmon_name), "%s_dsa%d", + hname, index); + ds->hwmon_dev = hwmon_device_register_with_groups(NULL, + ds->hwmon_name, ds, dsa_hwmon_groups); + if (IS_ERR(ds->hwmon_dev)) + ds->hwmon_dev = NULL; + } +#endif /* CONFIG_NET_DSA_HWMON */ + + return ret; + +out_free: + mdiobus_free(ds->slave_mii_bus); +out: + kfree(ds); + return ret; +} + +static struct dsa_switch * +dsa_switch_setup(struct dsa_switch_tree *dst, int index, + struct device *parent, struct device *host_dev) +{ + struct dsa_chip_data *pd = dst->pd->chip + index; + struct dsa_switch_driver *drv; + struct dsa_switch *ds; + int ret; + char *name; + + /* + * Probe for switch model. + */ + drv = dsa_switch_probe(host_dev, pd->sw_addr, &name); + if (drv == NULL) { + netdev_err(dst->master_netdev, "[%d]: could not detect attached switch\n", + index); + return ERR_PTR(-EINVAL); + } + netdev_info(dst->master_netdev, "[%d]: detected a %s switch\n", + index, name); + + + /* + * Allocate and initialise switch state. + */ + ds = kzalloc(sizeof(*ds) + drv->priv_size, GFP_KERNEL); + if (ds == NULL) + return ERR_PTR(-ENOMEM); + + ds->dst = dst; + ds->index = index; + ds->pd = pd; + ds->drv = drv; + ds->tag_protocol = drv->tag_protocol; + ds->master_dev = host_dev; + + ret = dsa_switch_setup_one(ds, parent); + if (ret) + return ERR_PTR(ret); + + return ds; +} + +static void dsa_switch_destroy(struct dsa_switch *ds) +{ +#ifdef CONFIG_NET_DSA_HWMON + if (ds->hwmon_dev) + hwmon_device_unregister(ds->hwmon_dev); +#endif +} + +#ifdef CONFIG_PM_SLEEP +static int dsa_switch_suspend(struct dsa_switch *ds) +{ + int i, ret = 0; + + /* Suspend slave network devices */ + for (i = 0; i < DSA_MAX_PORTS; i++) { + if (!dsa_is_port_initialized(ds, i)) + continue; + + ret = dsa_slave_suspend(ds->ports[i]); + if (ret) + return ret; + } + + if (ds->drv->suspend) + ret = ds->drv->suspend(ds); + + return ret; +} + +static int dsa_switch_resume(struct dsa_switch *ds) +{ + int i, ret = 0; + + if (ds->drv->resume) + ret = ds->drv->resume(ds); + + if (ret) + return ret; + + /* Resume slave network devices */ + for (i = 0; i < DSA_MAX_PORTS; i++) { + if (!dsa_is_port_initialized(ds, i)) + continue; + + ret = dsa_slave_resume(ds->ports[i]); + if (ret) + return ret; + } + + return 0; +} +#endif + + +/* link polling *************************************************************/ +static void dsa_link_poll_work(struct work_struct *ugly) +{ + struct dsa_switch_tree *dst; + int i; + + dst = container_of(ugly, struct dsa_switch_tree, link_poll_work); + + for (i = 0; i < dst->pd->nr_chips; i++) { + struct dsa_switch *ds = dst->ds[i]; + + if (ds != NULL && ds->drv->poll_link != NULL) + ds->drv->poll_link(ds); + } + + mod_timer(&dst->link_poll_timer, round_jiffies(jiffies + HZ)); +} + +static void dsa_link_poll_timer(unsigned long _dst) +{ + struct dsa_switch_tree *dst = (void *)_dst; + + schedule_work(&dst->link_poll_work); +} + + +/* platform driver init and cleanup *****************************************/ +static int dev_is_class(struct device *dev, void *class) +{ + if (dev->class != NULL && !strcmp(dev->class->name, class)) + return 1; + + return 0; +} + +static struct device *dev_find_class(struct device *parent, char *class) +{ + if (dev_is_class(parent, class)) { + get_device(parent); + return parent; + } + + return device_find_child(parent, class, dev_is_class); +} + +struct mii_bus *dsa_host_dev_to_mii_bus(struct device *dev) +{ + struct device *d; + + d = dev_find_class(dev, "mdio_bus"); + if (d != NULL) { + struct mii_bus *bus; + + bus = to_mii_bus(d); + put_device(d); + + return bus; + } + + return NULL; +} +EXPORT_SYMBOL_GPL(dsa_host_dev_to_mii_bus); + +static struct net_device *dev_to_net_device(struct device *dev) +{ + struct device *d; + + d = dev_find_class(dev, "net"); + if (d != NULL) { + struct net_device *nd; + + nd = to_net_dev(d); + dev_hold(nd); + put_device(d); + + return nd; + } + + return NULL; +} + +#ifdef CONFIG_OF +static int dsa_of_setup_routing_table(struct dsa_platform_data *pd, + struct dsa_chip_data *cd, + int chip_index, int port_index, + struct device_node *link) +{ + const __be32 *reg; + int link_sw_addr; + struct device_node *parent_sw; + int len; + + parent_sw = of_get_parent(link); + if (!parent_sw) + return -EINVAL; + + reg = of_get_property(parent_sw, "reg", &len); + if (!reg || (len != sizeof(*reg) * 2)) + return -EINVAL; + + /* + * Get the destination switch number from the second field of its 'reg' + * property, i.e. for "reg = <0x19 1>" sw_addr is '1'. + */ + link_sw_addr = be32_to_cpup(reg + 1); + + if (link_sw_addr >= pd->nr_chips) + return -EINVAL; + + /* First time routing table allocation */ + if (!cd->rtable) { + cd->rtable = kmalloc_array(pd->nr_chips, sizeof(s8), + GFP_KERNEL); + if (!cd->rtable) + return -ENOMEM; + + /* default to no valid uplink/downlink */ + memset(cd->rtable, -1, pd->nr_chips * sizeof(s8)); + } + + cd->rtable[link_sw_addr] = port_index; + + return 0; +} + +static void dsa_of_free_platform_data(struct dsa_platform_data *pd) +{ + int i; + int port_index; + + for (i = 0; i < pd->nr_chips; i++) { + port_index = 0; + while (port_index < DSA_MAX_PORTS) { + kfree(pd->chip[i].port_names[port_index]); + port_index++; + } + kfree(pd->chip[i].rtable); + } + kfree(pd->chip); +} + +static int dsa_of_probe(struct device *dev) +{ + struct device_node *np = dev->of_node; + struct device_node *child, *mdio, *ethernet, *port, *link; + struct mii_bus *mdio_bus; + struct net_device *ethernet_dev; + struct dsa_platform_data *pd; + struct dsa_chip_data *cd; + const char *port_name; + int chip_index, port_index; + const unsigned int *sw_addr, *port_reg; + u32 eeprom_len; + int ret; + + mdio = of_parse_phandle(np, "dsa,mii-bus", 0); + if (!mdio) + return -EINVAL; + + mdio_bus = of_mdio_find_bus(mdio); + if (!mdio_bus) + return -EPROBE_DEFER; + + ethernet = of_parse_phandle(np, "dsa,ethernet", 0); + if (!ethernet) + return -EINVAL; + + ethernet_dev = of_find_net_device_by_node(ethernet); + if (!ethernet_dev) + return -EPROBE_DEFER; + + pd = kzalloc(sizeof(*pd), GFP_KERNEL); + if (!pd) + return -ENOMEM; + + dev->platform_data = pd; + pd->of_netdev = ethernet_dev; + pd->nr_chips = of_get_available_child_count(np); + if (pd->nr_chips > DSA_MAX_SWITCHES) + pd->nr_chips = DSA_MAX_SWITCHES; + + pd->chip = kcalloc(pd->nr_chips, sizeof(struct dsa_chip_data), + GFP_KERNEL); + if (!pd->chip) { + ret = -ENOMEM; + goto out_free; + } + + chip_index = -1; + for_each_available_child_of_node(np, child) { + chip_index++; + cd = &pd->chip[chip_index]; + + cd->of_node = child; + cd->host_dev = &mdio_bus->dev; + + sw_addr = of_get_property(child, "reg", NULL); + if (!sw_addr) + continue; + + cd->sw_addr = be32_to_cpup(sw_addr); + if (cd->sw_addr > PHY_MAX_ADDR) + continue; + + if (!of_property_read_u32(child, "eeprom-length", &eeprom_len)) + cd->eeprom_len = eeprom_len; + + for_each_available_child_of_node(child, port) { + port_reg = of_get_property(port, "reg", NULL); + if (!port_reg) + continue; + + port_index = be32_to_cpup(port_reg); + + port_name = of_get_property(port, "label", NULL); + if (!port_name) + continue; + + cd->port_dn[port_index] = port; + + cd->port_names[port_index] = kstrdup(port_name, + GFP_KERNEL); + if (!cd->port_names[port_index]) { + ret = -ENOMEM; + goto out_free_chip; + } + + link = of_parse_phandle(port, "link", 0); + + if (!strcmp(port_name, "dsa") && link && + pd->nr_chips > 1) { + ret = dsa_of_setup_routing_table(pd, cd, + chip_index, port_index, link); + if (ret) + goto out_free_chip; + } + + if (port_index == DSA_MAX_PORTS) + break; + } + } + + return 0; + +out_free_chip: + dsa_of_free_platform_data(pd); +out_free: + kfree(pd); + dev->platform_data = NULL; + return ret; +} + +static void dsa_of_remove(struct device *dev) +{ + struct dsa_platform_data *pd = dev->platform_data; + + if (!dev->of_node) + return; + + dsa_of_free_platform_data(pd); + kfree(pd); +} +#else +static inline int dsa_of_probe(struct device *dev) +{ + return 0; +} + +static inline void dsa_of_remove(struct device *dev) +{ +} +#endif + +static void dsa_setup_dst(struct dsa_switch_tree *dst, struct net_device *dev, + struct device *parent, struct dsa_platform_data *pd) +{ + int i; + + dst->pd = pd; + dst->master_netdev = dev; + dst->cpu_switch = -1; + dst->cpu_port = -1; + + for (i = 0; i < pd->nr_chips; i++) { + struct dsa_switch *ds; + + ds = dsa_switch_setup(dst, i, parent, pd->chip[i].host_dev); + if (IS_ERR(ds)) { + netdev_err(dev, "[%d]: couldn't create dsa switch instance (error %ld)\n", + i, PTR_ERR(ds)); + continue; + } + + dst->ds[i] = ds; + if (ds->drv->poll_link != NULL) + dst->link_poll_needed = 1; + } + + /* + * If we use a tagging format that doesn't have an ethertype + * field, make sure that all packets from this point on get + * sent to the tag format's receive function. + */ + wmb(); + dev->dsa_ptr = (void *)dst; + + if (dst->link_poll_needed) { + INIT_WORK(&dst->link_poll_work, dsa_link_poll_work); + init_timer(&dst->link_poll_timer); + dst->link_poll_timer.data = (unsigned long)dst; + dst->link_poll_timer.function = dsa_link_poll_timer; + dst->link_poll_timer.expires = round_jiffies(jiffies + HZ); + add_timer(&dst->link_poll_timer); + } +} + +static int dsa_probe(struct platform_device *pdev) +{ + struct dsa_platform_data *pd = pdev->dev.platform_data; + struct net_device *dev; + struct dsa_switch_tree *dst; + int ret; + + pr_notice_once("Distributed Switch Architecture driver version %s\n", + dsa_driver_version); + + if (pdev->dev.of_node) { + ret = dsa_of_probe(&pdev->dev); + if (ret) + return ret; + + pd = pdev->dev.platform_data; + } + + if (pd == NULL || (pd->netdev == NULL && pd->of_netdev == NULL)) + return -EINVAL; + + if (pd->of_netdev) { + dev = pd->of_netdev; + dev_hold(dev); + } else { + dev = dev_to_net_device(pd->netdev); + } + if (dev == NULL) { + ret = -EPROBE_DEFER; + goto out; + } + + if (dev->dsa_ptr != NULL) { + dev_put(dev); + ret = -EEXIST; + goto out; + } + + dst = kzalloc(sizeof(*dst), GFP_KERNEL); + if (dst == NULL) { + dev_put(dev); + ret = -ENOMEM; + goto out; + } + + platform_set_drvdata(pdev, dst); + + dsa_setup_dst(dst, dev, &pdev->dev, pd); + + return 0; + +out: + dsa_of_remove(&pdev->dev); + + return ret; +} + +static void dsa_remove_dst(struct dsa_switch_tree *dst) +{ + int i; + + if (dst->link_poll_needed) + del_timer_sync(&dst->link_poll_timer); + + flush_work(&dst->link_poll_work); + + for (i = 0; i < dst->pd->nr_chips; i++) { + struct dsa_switch *ds = dst->ds[i]; + + if (ds != NULL) + dsa_switch_destroy(ds); + } +} + +static int dsa_remove(struct platform_device *pdev) +{ + struct dsa_switch_tree *dst = platform_get_drvdata(pdev); + + dsa_remove_dst(dst); + dsa_of_remove(&pdev->dev); + + return 0; +} + +static void dsa_shutdown(struct platform_device *pdev) +{ +} + +static int dsa_switch_rcv(struct sk_buff *skb, struct net_device *dev, + struct packet_type *pt, struct net_device *orig_dev) +{ + struct dsa_switch_tree *dst = dev->dsa_ptr; + + if (unlikely(dst == NULL)) { + kfree_skb(skb); + return 0; + } + + return dst->rcv(skb, dev, pt, orig_dev); +} + +static struct packet_type dsa_pack_type __read_mostly = { + .type = cpu_to_be16(ETH_P_XDSA), + .func = dsa_switch_rcv, +}; + +static struct notifier_block dsa_netdevice_nb __read_mostly = { + .notifier_call = dsa_slave_netdevice_event, +}; + +#ifdef CONFIG_PM_SLEEP +static int dsa_suspend(struct device *d) +{ + struct platform_device *pdev = to_platform_device(d); + struct dsa_switch_tree *dst = platform_get_drvdata(pdev); + int i, ret = 0; + + for (i = 0; i < dst->pd->nr_chips; i++) { + struct dsa_switch *ds = dst->ds[i]; + + if (ds != NULL) + ret = dsa_switch_suspend(ds); + } + + return ret; +} + +static int dsa_resume(struct device *d) +{ + struct platform_device *pdev = to_platform_device(d); + struct dsa_switch_tree *dst = platform_get_drvdata(pdev); + int i, ret = 0; + + for (i = 0; i < dst->pd->nr_chips; i++) { + struct dsa_switch *ds = dst->ds[i]; + + if (ds != NULL) + ret = dsa_switch_resume(ds); + } + + return ret; +} +#endif + +static SIMPLE_DEV_PM_OPS(dsa_pm_ops, dsa_suspend, dsa_resume); + +static const struct of_device_id dsa_of_match_table[] = { + { .compatible = "brcm,bcm7445-switch-v4.0" }, + { .compatible = "marvell,dsa", }, + {} +}; +MODULE_DEVICE_TABLE(of, dsa_of_match_table); + +static struct platform_driver dsa_driver = { + .probe = dsa_probe, + .remove = dsa_remove, + .shutdown = dsa_shutdown, + .driver = { + .name = "dsa", + .of_match_table = dsa_of_match_table, + .pm = &dsa_pm_ops, + }, +}; + +static int __init dsa_init_module(void) +{ + int rc; + + register_netdevice_notifier(&dsa_netdevice_nb); + + rc = platform_driver_register(&dsa_driver); + if (rc) + return rc; + + dev_add_pack(&dsa_pack_type); + + return 0; +} +module_init(dsa_init_module); + +static void __exit dsa_cleanup_module(void) +{ + unregister_netdevice_notifier(&dsa_netdevice_nb); + dev_remove_pack(&dsa_pack_type); + platform_driver_unregister(&dsa_driver); +} +module_exit(dsa_cleanup_module); + +MODULE_AUTHOR("Lennert Buytenhek <buytenh@wantstofly.org>"); +MODULE_DESCRIPTION("Driver for Distributed Switch Architecture switch chips"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:dsa"); |