2 * net/dsa/dsa.c - Hardware switch handling
3 * Copyright (c) 2008-2009 Marvell Semiconductor
4 * Copyright (c) 2013 Florian Fainelli <florian@openwrt.org>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
12 #include <linux/ctype.h>
13 #include <linux/device.h>
14 #include <linux/hwmon.h>
15 #include <linux/list.h>
16 #include <linux/platform_device.h>
17 #include <linux/slab.h>
18 #include <linux/module.h>
21 #include <linux/of_mdio.h>
22 #include <linux/of_platform.h>
23 #include <linux/of_net.h>
24 #include <linux/sysfs.h>
27 char dsa_driver_version
[] = "0.1";
30 /* switch driver registration ***********************************************/
31 static DEFINE_MUTEX(dsa_switch_drivers_mutex
);
32 static LIST_HEAD(dsa_switch_drivers
);
34 void register_switch_driver(struct dsa_switch_driver
*drv
)
36 mutex_lock(&dsa_switch_drivers_mutex
);
37 list_add_tail(&drv
->list
, &dsa_switch_drivers
);
38 mutex_unlock(&dsa_switch_drivers_mutex
);
40 EXPORT_SYMBOL_GPL(register_switch_driver
);
42 void unregister_switch_driver(struct dsa_switch_driver
*drv
)
44 mutex_lock(&dsa_switch_drivers_mutex
);
45 list_del_init(&drv
->list
);
46 mutex_unlock(&dsa_switch_drivers_mutex
);
48 EXPORT_SYMBOL_GPL(unregister_switch_driver
);
50 static struct dsa_switch_driver
*
51 dsa_switch_probe(struct device
*host_dev
, int sw_addr
, char **_name
)
53 struct dsa_switch_driver
*ret
;
54 struct list_head
*list
;
60 mutex_lock(&dsa_switch_drivers_mutex
);
61 list_for_each(list
, &dsa_switch_drivers
) {
62 struct dsa_switch_driver
*drv
;
64 drv
= list_entry(list
, struct dsa_switch_driver
, list
);
66 name
= drv
->probe(host_dev
, sw_addr
);
72 mutex_unlock(&dsa_switch_drivers_mutex
);
79 /* hwmon support ************************************************************/
81 #ifdef CONFIG_NET_DSA_HWMON
83 static ssize_t
temp1_input_show(struct device
*dev
,
84 struct device_attribute
*attr
, char *buf
)
86 struct dsa_switch
*ds
= dev_get_drvdata(dev
);
89 ret
= ds
->drv
->get_temp(ds
, &temp
);
93 return sprintf(buf
, "%d\n", temp
* 1000);
95 static DEVICE_ATTR_RO(temp1_input
);
97 static ssize_t
temp1_max_show(struct device
*dev
,
98 struct device_attribute
*attr
, char *buf
)
100 struct dsa_switch
*ds
= dev_get_drvdata(dev
);
103 ret
= ds
->drv
->get_temp_limit(ds
, &temp
);
107 return sprintf(buf
, "%d\n", temp
* 1000);
110 static ssize_t
temp1_max_store(struct device
*dev
,
111 struct device_attribute
*attr
, const char *buf
,
114 struct dsa_switch
*ds
= dev_get_drvdata(dev
);
117 ret
= kstrtoint(buf
, 0, &temp
);
121 ret
= ds
->drv
->set_temp_limit(ds
, DIV_ROUND_CLOSEST(temp
, 1000));
127 static DEVICE_ATTR_RW(temp1_max
);
129 static ssize_t
temp1_max_alarm_show(struct device
*dev
,
130 struct device_attribute
*attr
, char *buf
)
132 struct dsa_switch
*ds
= dev_get_drvdata(dev
);
136 ret
= ds
->drv
->get_temp_alarm(ds
, &alarm
);
140 return sprintf(buf
, "%d\n", alarm
);
142 static DEVICE_ATTR_RO(temp1_max_alarm
);
144 static struct attribute
*dsa_hwmon_attrs
[] = {
145 &dev_attr_temp1_input
.attr
, /* 0 */
146 &dev_attr_temp1_max
.attr
, /* 1 */
147 &dev_attr_temp1_max_alarm
.attr
, /* 2 */
151 static umode_t
dsa_hwmon_attrs_visible(struct kobject
*kobj
,
152 struct attribute
*attr
, int index
)
154 struct device
*dev
= container_of(kobj
, struct device
, kobj
);
155 struct dsa_switch
*ds
= dev_get_drvdata(dev
);
156 struct dsa_switch_driver
*drv
= ds
->drv
;
157 umode_t mode
= attr
->mode
;
160 if (!drv
->get_temp_limit
)
162 else if (!drv
->set_temp_limit
)
164 } else if (index
== 2 && !drv
->get_temp_alarm
) {
170 static const struct attribute_group dsa_hwmon_group
= {
171 .attrs
= dsa_hwmon_attrs
,
172 .is_visible
= dsa_hwmon_attrs_visible
,
174 __ATTRIBUTE_GROUPS(dsa_hwmon
);
176 #endif /* CONFIG_NET_DSA_HWMON */
178 /* basic switch operations **************************************************/
179 static int dsa_cpu_dsa_setup(struct dsa_switch
*ds
, struct net_device
*master
)
181 struct dsa_chip_data
*cd
= ds
->pd
;
182 struct device_node
*port_dn
;
183 struct phy_device
*phydev
;
186 for (port
= 0; port
< DSA_MAX_PORTS
; port
++) {
187 if (!(dsa_is_cpu_port(ds
, port
) || dsa_is_dsa_port(ds
, port
)))
190 port_dn
= cd
->port_dn
[port
];
191 if (of_phy_is_fixed_link(port_dn
)) {
192 ret
= of_phy_register_fixed_link(port_dn
);
195 "failed to register fixed PHY\n");
198 phydev
= of_phy_find_device(port_dn
);
200 mode
= of_get_phy_mode(port_dn
);
202 mode
= PHY_INTERFACE_MODE_NA
;
203 phydev
->interface
= mode
;
205 genphy_config_init(phydev
);
206 genphy_read_status(phydev
);
207 if (ds
->drv
->adjust_link
)
208 ds
->drv
->adjust_link(ds
, port
, phydev
);
214 static int dsa_switch_setup_one(struct dsa_switch
*ds
, struct device
*parent
)
216 struct dsa_switch_driver
*drv
= ds
->drv
;
217 struct dsa_switch_tree
*dst
= ds
->dst
;
218 struct dsa_chip_data
*pd
= ds
->pd
;
219 bool valid_name_found
= false;
220 int index
= ds
->index
;
224 * Validate supplied switch configuration.
226 for (i
= 0; i
< DSA_MAX_PORTS
; i
++) {
229 name
= pd
->port_names
[i
];
233 if (!strcmp(name
, "cpu")) {
234 if (dst
->cpu_switch
!= -1) {
235 netdev_err(dst
->master_netdev
,
236 "multiple cpu ports?!\n");
240 dst
->cpu_switch
= index
;
242 } else if (!strcmp(name
, "dsa")) {
243 ds
->dsa_port_mask
|= 1 << i
;
245 ds
->phys_port_mask
|= 1 << i
;
247 valid_name_found
= true;
250 if (!valid_name_found
&& i
== DSA_MAX_PORTS
) {
255 /* Make the built-in MII bus mask match the number of ports,
256 * switch drivers can override this later
258 ds
->phys_mii_mask
= ds
->phys_port_mask
;
261 * If the CPU connects to this switch, set the switch tree
262 * tagging protocol to the preferred tagging format of this
265 if (dst
->cpu_switch
== index
) {
266 switch (ds
->tag_protocol
) {
267 #ifdef CONFIG_NET_DSA_TAG_DSA
268 case DSA_TAG_PROTO_DSA
:
269 dst
->rcv
= dsa_netdev_ops
.rcv
;
272 #ifdef CONFIG_NET_DSA_TAG_EDSA
273 case DSA_TAG_PROTO_EDSA
:
274 dst
->rcv
= edsa_netdev_ops
.rcv
;
277 #ifdef CONFIG_NET_DSA_TAG_TRAILER
278 case DSA_TAG_PROTO_TRAILER
:
279 dst
->rcv
= trailer_netdev_ops
.rcv
;
282 #ifdef CONFIG_NET_DSA_TAG_BRCM
283 case DSA_TAG_PROTO_BRCM
:
284 dst
->rcv
= brcm_netdev_ops
.rcv
;
287 case DSA_TAG_PROTO_NONE
:
294 dst
->tag_protocol
= ds
->tag_protocol
;
298 * Do basic register setup.
300 ret
= drv
->setup(ds
);
304 ret
= drv
->set_addr(ds
, dst
->master_netdev
->dev_addr
);
308 ds
->slave_mii_bus
= mdiobus_alloc();
309 if (ds
->slave_mii_bus
== NULL
) {
313 dsa_slave_mii_bus_init(ds
);
315 ret
= mdiobus_register(ds
->slave_mii_bus
);
321 * Create network devices for physical switch ports.
323 for (i
= 0; i
< DSA_MAX_PORTS
; i
++) {
324 if (!(ds
->phys_port_mask
& (1 << i
)))
327 ret
= dsa_slave_create(ds
, parent
, i
, pd
->port_names
[i
]);
329 netdev_err(dst
->master_netdev
, "[%d]: can't create dsa slave device for port %d(%s)\n",
330 index
, i
, pd
->port_names
[i
]);
335 /* Perform configuration of the CPU and DSA ports */
336 ret
= dsa_cpu_dsa_setup(ds
, dst
->master_netdev
);
338 netdev_err(dst
->master_netdev
, "[%d] : can't configure CPU and DSA ports\n",
343 #ifdef CONFIG_NET_DSA_HWMON
344 /* If the switch provides a temperature sensor,
345 * register with hardware monitoring subsystem.
346 * Treat registration error as non-fatal and ignore it.
349 const char *netname
= netdev_name(dst
->master_netdev
);
350 char hname
[IFNAMSIZ
+ 1];
353 /* Create valid hwmon 'name' attribute */
354 for (i
= j
= 0; i
< IFNAMSIZ
&& netname
[i
]; i
++) {
355 if (isalnum(netname
[i
]))
356 hname
[j
++] = netname
[i
];
359 scnprintf(ds
->hwmon_name
, sizeof(ds
->hwmon_name
), "%s_dsa%d",
361 ds
->hwmon_dev
= hwmon_device_register_with_groups(NULL
,
362 ds
->hwmon_name
, ds
, dsa_hwmon_groups
);
363 if (IS_ERR(ds
->hwmon_dev
))
364 ds
->hwmon_dev
= NULL
;
366 #endif /* CONFIG_NET_DSA_HWMON */
371 mdiobus_free(ds
->slave_mii_bus
);
377 static struct dsa_switch
*
378 dsa_switch_setup(struct dsa_switch_tree
*dst
, int index
,
379 struct device
*parent
, struct device
*host_dev
)
381 struct dsa_chip_data
*pd
= dst
->pd
->chip
+ index
;
382 struct dsa_switch_driver
*drv
;
383 struct dsa_switch
*ds
;
388 * Probe for switch model.
390 drv
= dsa_switch_probe(host_dev
, pd
->sw_addr
, &name
);
392 netdev_err(dst
->master_netdev
, "[%d]: could not detect attached switch\n",
394 return ERR_PTR(-EINVAL
);
396 netdev_info(dst
->master_netdev
, "[%d]: detected a %s switch\n",
401 * Allocate and initialise switch state.
403 ds
= kzalloc(sizeof(*ds
) + drv
->priv_size
, GFP_KERNEL
);
405 return ERR_PTR(-ENOMEM
);
411 ds
->tag_protocol
= drv
->tag_protocol
;
412 ds
->master_dev
= host_dev
;
414 ret
= dsa_switch_setup_one(ds
, parent
);
421 static void dsa_switch_destroy(struct dsa_switch
*ds
)
423 #ifdef CONFIG_NET_DSA_HWMON
425 hwmon_device_unregister(ds
->hwmon_dev
);
429 #ifdef CONFIG_PM_SLEEP
430 static int dsa_switch_suspend(struct dsa_switch
*ds
)
434 /* Suspend slave network devices */
435 for (i
= 0; i
< DSA_MAX_PORTS
; i
++) {
436 if (!dsa_is_port_initialized(ds
, i
))
439 ret
= dsa_slave_suspend(ds
->ports
[i
]);
444 if (ds
->drv
->suspend
)
445 ret
= ds
->drv
->suspend(ds
);
450 static int dsa_switch_resume(struct dsa_switch
*ds
)
455 ret
= ds
->drv
->resume(ds
);
460 /* Resume slave network devices */
461 for (i
= 0; i
< DSA_MAX_PORTS
; i
++) {
462 if (!dsa_is_port_initialized(ds
, i
))
465 ret
= dsa_slave_resume(ds
->ports
[i
]);
475 /* link polling *************************************************************/
476 static void dsa_link_poll_work(struct work_struct
*ugly
)
478 struct dsa_switch_tree
*dst
;
481 dst
= container_of(ugly
, struct dsa_switch_tree
, link_poll_work
);
483 for (i
= 0; i
< dst
->pd
->nr_chips
; i
++) {
484 struct dsa_switch
*ds
= dst
->ds
[i
];
486 if (ds
!= NULL
&& ds
->drv
->poll_link
!= NULL
)
487 ds
->drv
->poll_link(ds
);
490 mod_timer(&dst
->link_poll_timer
, round_jiffies(jiffies
+ HZ
));
493 static void dsa_link_poll_timer(unsigned long _dst
)
495 struct dsa_switch_tree
*dst
= (void *)_dst
;
497 schedule_work(&dst
->link_poll_work
);
501 /* platform driver init and cleanup *****************************************/
502 static int dev_is_class(struct device
*dev
, void *class)
504 if (dev
->class != NULL
&& !strcmp(dev
->class->name
, class))
510 static struct device
*dev_find_class(struct device
*parent
, char *class)
512 if (dev_is_class(parent
, class)) {
517 return device_find_child(parent
, class, dev_is_class
);
520 struct mii_bus
*dsa_host_dev_to_mii_bus(struct device
*dev
)
524 d
= dev_find_class(dev
, "mdio_bus");
536 EXPORT_SYMBOL_GPL(dsa_host_dev_to_mii_bus
);
538 static struct net_device
*dev_to_net_device(struct device
*dev
)
542 d
= dev_find_class(dev
, "net");
544 struct net_device
*nd
;
557 static int dsa_of_setup_routing_table(struct dsa_platform_data
*pd
,
558 struct dsa_chip_data
*cd
,
559 int chip_index
, int port_index
,
560 struct device_node
*link
)
564 struct device_node
*parent_sw
;
567 parent_sw
= of_get_parent(link
);
571 reg
= of_get_property(parent_sw
, "reg", &len
);
572 if (!reg
|| (len
!= sizeof(*reg
) * 2))
576 * Get the destination switch number from the second field of its 'reg'
577 * property, i.e. for "reg = <0x19 1>" sw_addr is '1'.
579 link_sw_addr
= be32_to_cpup(reg
+ 1);
581 if (link_sw_addr
>= pd
->nr_chips
)
584 /* First time routing table allocation */
586 cd
->rtable
= kmalloc_array(pd
->nr_chips
, sizeof(s8
),
591 /* default to no valid uplink/downlink */
592 memset(cd
->rtable
, -1, pd
->nr_chips
* sizeof(s8
));
595 cd
->rtable
[link_sw_addr
] = port_index
;
600 static int dsa_of_probe_links(struct dsa_platform_data
*pd
,
601 struct dsa_chip_data
*cd
,
602 int chip_index
, int port_index
,
603 struct device_node
*port
,
604 const char *port_name
)
606 struct device_node
*link
;
610 for (link_index
= 0;; link_index
++) {
611 link
= of_parse_phandle(port
, "link", link_index
);
615 if (!strcmp(port_name
, "dsa") && pd
->nr_chips
> 1) {
616 ret
= dsa_of_setup_routing_table(pd
, cd
, chip_index
,
625 static void dsa_of_free_platform_data(struct dsa_platform_data
*pd
)
630 for (i
= 0; i
< pd
->nr_chips
; i
++) {
632 while (port_index
< DSA_MAX_PORTS
) {
633 kfree(pd
->chip
[i
].port_names
[port_index
]);
636 kfree(pd
->chip
[i
].rtable
);
641 static int dsa_of_probe(struct device
*dev
)
643 struct device_node
*np
= dev
->of_node
;
644 struct device_node
*child
, *mdio
, *ethernet
, *port
;
645 struct mii_bus
*mdio_bus
, *mdio_bus_switch
;
646 struct net_device
*ethernet_dev
;
647 struct dsa_platform_data
*pd
;
648 struct dsa_chip_data
*cd
;
649 const char *port_name
;
650 int chip_index
, port_index
;
651 const unsigned int *sw_addr
, *port_reg
;
655 mdio
= of_parse_phandle(np
, "dsa,mii-bus", 0);
659 mdio_bus
= of_mdio_find_bus(mdio
);
661 return -EPROBE_DEFER
;
663 ethernet
= of_parse_phandle(np
, "dsa,ethernet", 0);
667 ethernet_dev
= of_find_net_device_by_node(ethernet
);
669 return -EPROBE_DEFER
;
671 pd
= kzalloc(sizeof(*pd
), GFP_KERNEL
);
675 dev
->platform_data
= pd
;
676 pd
->of_netdev
= ethernet_dev
;
677 pd
->nr_chips
= of_get_available_child_count(np
);
678 if (pd
->nr_chips
> DSA_MAX_SWITCHES
)
679 pd
->nr_chips
= DSA_MAX_SWITCHES
;
681 pd
->chip
= kcalloc(pd
->nr_chips
, sizeof(struct dsa_chip_data
),
689 for_each_available_child_of_node(np
, child
) {
691 cd
= &pd
->chip
[chip_index
];
694 cd
->host_dev
= &mdio_bus
->dev
;
696 sw_addr
= of_get_property(child
, "reg", NULL
);
700 cd
->sw_addr
= be32_to_cpup(sw_addr
);
701 if (cd
->sw_addr
>= PHY_MAX_ADDR
)
704 if (!of_property_read_u32(child
, "eeprom-length", &eeprom_len
))
705 cd
->eeprom_len
= eeprom_len
;
707 mdio
= of_parse_phandle(child
, "mii-bus", 0);
709 mdio_bus_switch
= of_mdio_find_bus(mdio
);
710 if (!mdio_bus_switch
) {
714 cd
->host_dev
= &mdio_bus_switch
->dev
;
717 for_each_available_child_of_node(child
, port
) {
718 port_reg
= of_get_property(port
, "reg", NULL
);
722 port_index
= be32_to_cpup(port_reg
);
723 if (port_index
>= DSA_MAX_PORTS
)
726 port_name
= of_get_property(port
, "label", NULL
);
730 cd
->port_dn
[port_index
] = port
;
732 cd
->port_names
[port_index
] = kstrdup(port_name
,
734 if (!cd
->port_names
[port_index
]) {
739 ret
= dsa_of_probe_links(pd
, cd
, chip_index
,
740 port_index
, port
, port_name
);
750 dsa_of_free_platform_data(pd
);
753 dev
->platform_data
= NULL
;
757 static void dsa_of_remove(struct device
*dev
)
759 struct dsa_platform_data
*pd
= dev
->platform_data
;
764 dsa_of_free_platform_data(pd
);
768 static inline int dsa_of_probe(struct device
*dev
)
773 static inline void dsa_of_remove(struct device
*dev
)
778 static void dsa_setup_dst(struct dsa_switch_tree
*dst
, struct net_device
*dev
,
779 struct device
*parent
, struct dsa_platform_data
*pd
)
784 dst
->master_netdev
= dev
;
785 dst
->cpu_switch
= -1;
788 for (i
= 0; i
< pd
->nr_chips
; i
++) {
789 struct dsa_switch
*ds
;
791 ds
= dsa_switch_setup(dst
, i
, parent
, pd
->chip
[i
].host_dev
);
793 netdev_err(dev
, "[%d]: couldn't create dsa switch instance (error %ld)\n",
799 if (ds
->drv
->poll_link
!= NULL
)
800 dst
->link_poll_needed
= 1;
804 * If we use a tagging format that doesn't have an ethertype
805 * field, make sure that all packets from this point on get
806 * sent to the tag format's receive function.
809 dev
->dsa_ptr
= (void *)dst
;
811 if (dst
->link_poll_needed
) {
812 INIT_WORK(&dst
->link_poll_work
, dsa_link_poll_work
);
813 init_timer(&dst
->link_poll_timer
);
814 dst
->link_poll_timer
.data
= (unsigned long)dst
;
815 dst
->link_poll_timer
.function
= dsa_link_poll_timer
;
816 dst
->link_poll_timer
.expires
= round_jiffies(jiffies
+ HZ
);
817 add_timer(&dst
->link_poll_timer
);
821 static int dsa_probe(struct platform_device
*pdev
)
823 struct dsa_platform_data
*pd
= pdev
->dev
.platform_data
;
824 struct net_device
*dev
;
825 struct dsa_switch_tree
*dst
;
828 pr_notice_once("Distributed Switch Architecture driver version %s\n",
831 if (pdev
->dev
.of_node
) {
832 ret
= dsa_of_probe(&pdev
->dev
);
836 pd
= pdev
->dev
.platform_data
;
839 if (pd
== NULL
|| (pd
->netdev
== NULL
&& pd
->of_netdev
== NULL
))
846 dev
= dev_to_net_device(pd
->netdev
);
853 if (dev
->dsa_ptr
!= NULL
) {
859 dst
= kzalloc(sizeof(*dst
), GFP_KERNEL
);
866 platform_set_drvdata(pdev
, dst
);
868 dsa_setup_dst(dst
, dev
, &pdev
->dev
, pd
);
873 dsa_of_remove(&pdev
->dev
);
878 static void dsa_remove_dst(struct dsa_switch_tree
*dst
)
882 if (dst
->link_poll_needed
)
883 del_timer_sync(&dst
->link_poll_timer
);
885 flush_work(&dst
->link_poll_work
);
887 for (i
= 0; i
< dst
->pd
->nr_chips
; i
++) {
888 struct dsa_switch
*ds
= dst
->ds
[i
];
891 dsa_switch_destroy(ds
);
895 static int dsa_remove(struct platform_device
*pdev
)
897 struct dsa_switch_tree
*dst
= platform_get_drvdata(pdev
);
900 dsa_of_remove(&pdev
->dev
);
905 static void dsa_shutdown(struct platform_device
*pdev
)
909 static int dsa_switch_rcv(struct sk_buff
*skb
, struct net_device
*dev
,
910 struct packet_type
*pt
, struct net_device
*orig_dev
)
912 struct dsa_switch_tree
*dst
= dev
->dsa_ptr
;
914 if (unlikely(dst
== NULL
)) {
919 return dst
->rcv(skb
, dev
, pt
, orig_dev
);
922 static struct packet_type dsa_pack_type __read_mostly
= {
923 .type
= cpu_to_be16(ETH_P_XDSA
),
924 .func
= dsa_switch_rcv
,
927 static struct notifier_block dsa_netdevice_nb __read_mostly
= {
928 .notifier_call
= dsa_slave_netdevice_event
,
931 #ifdef CONFIG_PM_SLEEP
932 static int dsa_suspend(struct device
*d
)
934 struct platform_device
*pdev
= to_platform_device(d
);
935 struct dsa_switch_tree
*dst
= platform_get_drvdata(pdev
);
938 for (i
= 0; i
< dst
->pd
->nr_chips
; i
++) {
939 struct dsa_switch
*ds
= dst
->ds
[i
];
942 ret
= dsa_switch_suspend(ds
);
948 static int dsa_resume(struct device
*d
)
950 struct platform_device
*pdev
= to_platform_device(d
);
951 struct dsa_switch_tree
*dst
= platform_get_drvdata(pdev
);
954 for (i
= 0; i
< dst
->pd
->nr_chips
; i
++) {
955 struct dsa_switch
*ds
= dst
->ds
[i
];
958 ret
= dsa_switch_resume(ds
);
965 static SIMPLE_DEV_PM_OPS(dsa_pm_ops
, dsa_suspend
, dsa_resume
);
967 static const struct of_device_id dsa_of_match_table
[] = {
968 { .compatible
= "brcm,bcm7445-switch-v4.0" },
969 { .compatible
= "marvell,dsa", },
972 MODULE_DEVICE_TABLE(of
, dsa_of_match_table
);
974 static struct platform_driver dsa_driver
= {
976 .remove
= dsa_remove
,
977 .shutdown
= dsa_shutdown
,
980 .of_match_table
= dsa_of_match_table
,
985 static int __init
dsa_init_module(void)
989 register_netdevice_notifier(&dsa_netdevice_nb
);
991 rc
= platform_driver_register(&dsa_driver
);
995 dev_add_pack(&dsa_pack_type
);
999 module_init(dsa_init_module
);
1001 static void __exit
dsa_cleanup_module(void)
1003 unregister_netdevice_notifier(&dsa_netdevice_nb
);
1004 dev_remove_pack(&dsa_pack_type
);
1005 platform_driver_unregister(&dsa_driver
);
1007 module_exit(dsa_cleanup_module
);
1009 MODULE_AUTHOR("Lennert Buytenhek <buytenh@wantstofly.org>");
1010 MODULE_DESCRIPTION("Driver for Distributed Switch Architecture switch chips");
1011 MODULE_LICENSE("GPL");
1012 MODULE_ALIAS("platform:dsa");