Release 4.7 include/net/dsa.h
/*
* include/net/dsa.h - Driver for Distributed Switch Architecture switch chips
* Copyright (c) 2008-2009 Marvell Semiconductor
*
* 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.
*/
#ifndef __LINUX_NET_DSA_H
#define __LINUX_NET_DSA_H
#include <linux/if_ether.h>
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/workqueue.h>
#include <linux/of.h>
#include <linux/phy.h>
#include <linux/phy_fixed.h>
#include <linux/ethtool.h>
enum dsa_tag_protocol {
DSA_TAG_PROTO_NONE = 0,
DSA_TAG_PROTO_DSA,
DSA_TAG_PROTO_TRAILER,
DSA_TAG_PROTO_EDSA,
DSA_TAG_PROTO_BRCM,
};
#define DSA_MAX_SWITCHES 4
#define DSA_MAX_PORTS 12
struct dsa_chip_data {
/*
* How to access the switch configuration registers.
*/
struct device *host_dev;
int sw_addr;
/* set to size of eeprom if supported by the switch */
int eeprom_len;
/* Device tree node pointer for this specific switch chip
* used during switch setup in case additional properties
* and resources needs to be used
*/
struct device_node *of_node;
/*
* The names of the switch's ports. Use "cpu" to
* designate the switch port that the cpu is connected to,
* "dsa" to indicate that this port is a DSA link to
* another switch, NULL to indicate the port is unused,
* or any other string to indicate this is a physical port.
*/
char *port_names[DSA_MAX_PORTS];
struct device_node *port_dn[DSA_MAX_PORTS];
/*
* An array (with nr_chips elements) of which element [a]
* indicates which port on this switch should be used to
* send packets to that are destined for switch a. Can be
* NULL if there is only one switch chip.
*/
s8 *rtable;
};
struct dsa_platform_data {
/*
* Reference to a Linux network interface that connects
* to the root switch chip of the tree.
*/
struct device *netdev;
struct net_device *of_netdev;
/*
* Info structs describing each of the switch chips
* connected via this network interface.
*/
int nr_chips;
struct dsa_chip_data *chip;
};
struct packet_type;
struct dsa_switch_tree {
/*
* Configuration data for the platform device that owns
* this dsa switch tree instance.
*/
struct dsa_platform_data *pd;
/*
* Reference to network device to use, and which tagging
* protocol to use.
*/
struct net_device *master_netdev;
int (*rcv)(struct sk_buff *skb,
struct net_device *dev,
struct packet_type *pt,
struct net_device *orig_dev);
enum dsa_tag_protocol tag_protocol;
/*
* Original copy of the master netdev ethtool_ops
*/
struct ethtool_ops master_ethtool_ops;
/*
* The switch and port to which the CPU is attached.
*/
s8 cpu_switch;
s8 cpu_port;
/*
* Data for the individual switch chips.
*/
struct dsa_switch *ds[DSA_MAX_SWITCHES];
};
struct dsa_switch {
struct device *dev;
/*
* Parent switch tree, and switch index.
*/
struct dsa_switch_tree *dst;
int index;
/*
* Give the switch driver somewhere to hang its private data
* structure.
*/
void *priv;
/*
* Configuration data for this switch.
*/
struct dsa_chip_data *cd;
/*
* The used switch driver.
*/
struct dsa_switch_driver *drv;
#ifdef CONFIG_NET_DSA_HWMON
/*
* Hardware monitoring information
*/
char hwmon_name[IFNAMSIZ + 8];
struct device *hwmon_dev;
#endif
/*
* Slave mii_bus and devices for the individual ports.
*/
u32 dsa_port_mask;
u32 enabled_port_mask;
u32 phys_mii_mask;
struct mii_bus *slave_mii_bus;
struct net_device *ports[DSA_MAX_PORTS];
};
static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p)
{
return !!(ds->index == ds->dst->cpu_switch && p == ds->dst->cpu_port);
}
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static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p)
{
return !!((ds->dsa_port_mask) & (1 << p));
}
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| andrew lunn | andrew lunn | 32 | 100.00% | 1 | 100.00% |
| Total | 32 | 100.00% | 1 | 100.00% |
static inline bool dsa_is_port_initialized(struct dsa_switch *ds, int p)
{
return ds->enabled_port_mask & (1 << p) && ds->ports[p];
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| guenter roeck | guenter roeck | 32 | 96.97% | 1 | 50.00% |
| andrew lunn | andrew lunn | 1 | 3.03% | 1 | 50.00% |
| Total | 33 | 100.00% | 2 | 100.00% |
static inline u8 dsa_upstream_port(struct dsa_switch *ds)
{
struct dsa_switch_tree *dst = ds->dst;
/*
* If this is the root switch (i.e. the switch that connects
* to the CPU), return the cpu port number on this switch.
* Else return the (DSA) port number that connects to the
* switch that is one hop closer to the cpu.
*/
if (dst->cpu_switch == ds->index)
return dst->cpu_port;
else
return ds->cd->rtable[dst->cpu_switch];
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| ben hutchings | ben hutchings | 49 | 98.00% | 1 | 50.00% |
| andrew lunn | andrew lunn | 1 | 2.00% | 1 | 50.00% |
| Total | 50 | 100.00% | 2 | 100.00% |
struct switchdev_trans;
struct switchdev_obj;
struct switchdev_obj_port_fdb;
struct switchdev_obj_port_vlan;
struct dsa_switch_driver {
struct list_head list;
enum dsa_tag_protocol tag_protocol;
/*
* Probing and setup.
*/
const char *(*probe)(struct device *dsa_dev,
struct device *host_dev, int sw_addr,
void **priv);
int (*setup)(struct dsa_switch *ds);
int (*set_addr)(struct dsa_switch *ds, u8 *addr);
u32 (*get_phy_flags)(struct dsa_switch *ds, int port);
/*
* Access to the switch's PHY registers.
*/
int (*phy_read)(struct dsa_switch *ds, int port, int regnum);
int (*phy_write)(struct dsa_switch *ds, int port,
int regnum, u16 val);
/*
* Link state adjustment (called from libphy)
*/
void (*adjust_link)(struct dsa_switch *ds, int port,
struct phy_device *phydev);
void (*fixed_link_update)(struct dsa_switch *ds, int port,
struct fixed_phy_status *st);
/*
* ethtool hardware statistics.
*/
void (*get_strings)(struct dsa_switch *ds, int port, uint8_t *data);
void (*get_ethtool_stats)(struct dsa_switch *ds,
int port, uint64_t *data);
int (*get_sset_count)(struct dsa_switch *ds);
/*
* ethtool Wake-on-LAN
*/
void (*get_wol)(struct dsa_switch *ds, int port,
struct ethtool_wolinfo *w);
int (*set_wol)(struct dsa_switch *ds, int port,
struct ethtool_wolinfo *w);
/*
* Suspend and resume
*/
int (*suspend)(struct dsa_switch *ds);
int (*resume)(struct dsa_switch *ds);
/*
* Port enable/disable
*/
int (*port_enable)(struct dsa_switch *ds, int port,
struct phy_device *phy);
void (*port_disable)(struct dsa_switch *ds, int port,
struct phy_device *phy);
/*
* EEE setttings
*/
int (*set_eee)(struct dsa_switch *ds, int port,
struct phy_device *phydev,
struct ethtool_eee *e);
int (*get_eee)(struct dsa_switch *ds, int port,
struct ethtool_eee *e);
#ifdef CONFIG_NET_DSA_HWMON
/* Hardware monitoring */
int (*get_temp)(struct dsa_switch *ds, int *temp);
int (*get_temp_limit)(struct dsa_switch *ds, int *temp);
int (*set_temp_limit)(struct dsa_switch *ds, int temp);
int (*get_temp_alarm)(struct dsa_switch *ds, bool *alarm);
#endif
/* EEPROM access */
int (*get_eeprom_len)(struct dsa_switch *ds);
int (*get_eeprom)(struct dsa_switch *ds,
struct ethtool_eeprom *eeprom, u8 *data);
int (*set_eeprom)(struct dsa_switch *ds,
struct ethtool_eeprom *eeprom, u8 *data);
/*
* Register access.
*/
int (*get_regs_len)(struct dsa_switch *ds, int port);
void (*get_regs)(struct dsa_switch *ds, int port,
struct ethtool_regs *regs, void *p);
/*
* Bridge integration
*/
int (*port_bridge_join)(struct dsa_switch *ds, int port,
struct net_device *bridge);
void (*port_bridge_leave)(struct dsa_switch *ds, int port);
void (*port_stp_state_set)(struct dsa_switch *ds, int port,
u8 state);
/*
* VLAN support
*/
int (*port_vlan_filtering)(struct dsa_switch *ds, int port,
bool vlan_filtering);
int (*port_vlan_prepare)(struct dsa_switch *ds, int port,
const struct switchdev_obj_port_vlan *vlan,
struct switchdev_trans *trans);
void (*port_vlan_add)(struct dsa_switch *ds, int port,
const struct switchdev_obj_port_vlan *vlan,
struct switchdev_trans *trans);
int (*port_vlan_del)(struct dsa_switch *ds, int port,
const struct switchdev_obj_port_vlan *vlan);
int (*port_vlan_dump)(struct dsa_switch *ds, int port,
struct switchdev_obj_port_vlan *vlan,
int (*cb)(struct switchdev_obj *obj));
/*
* Forwarding database
*/
int (*port_fdb_prepare)(struct dsa_switch *ds, int port,
const struct switchdev_obj_port_fdb *fdb,
struct switchdev_trans *trans);
void (*port_fdb_add)(struct dsa_switch *ds, int port,
const struct switchdev_obj_port_fdb *fdb,
struct switchdev_trans *trans);
int (*port_fdb_del)(struct dsa_switch *ds, int port,
const struct switchdev_obj_port_fdb *fdb);
int (*port_fdb_dump)(struct dsa_switch *ds, int port,
struct switchdev_obj_port_fdb *fdb,
int (*cb)(struct switchdev_obj *obj));
};
void register_switch_driver(struct dsa_switch_driver *type);
void unregister_switch_driver(struct dsa_switch_driver *type);
struct mii_bus *dsa_host_dev_to_mii_bus(struct device *dev);
static inline void *ds_to_priv(struct dsa_switch *ds)
{
return ds->priv;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| florian fainelli | florian fainelli | 16 | 88.89% | 1 | 50.00% |
| andrew lunn | andrew lunn | 2 | 11.11% | 1 | 50.00% |
| Total | 18 | 100.00% | 2 | 100.00% |
static inline bool dsa_uses_tagged_protocol(struct dsa_switch_tree *dst)
{
return dst->rcv != NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| florian fainelli | florian fainelli | 17 | 89.47% | 1 | 50.00% |
| alexander duyck | alexander duyck | 2 | 10.53% | 1 | 50.00% |
| Total | 19 | 100.00% | 2 | 100.00% |
#endif
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| florian fainelli | florian fainelli | 350 | 26.42% | 18 | 33.33% |
| ben hutchings | ben hutchings | 338 | 25.51% | 2 | 3.70% |
| guenter roeck | guenter roeck | 248 | 18.72% | 5 | 9.26% |
| vivien didelot | vivien didelot | 220 | 16.60% | 17 | 31.48% |
| lennert buytenhek | lennert buytenhek | 63 | 4.75% | 2 | 3.70% |
| andrew lunn | andrew lunn | 58 | 4.38% | 6 | 11.11% |
| alexander duyck | alexander duyck | 42 | 3.17% | 2 | 3.70% |
| david s. miller | david s. miller | 3 | 0.23% | 1 | 1.85% |
| axel lin | axel lin | 3 | 0.23% | 1 | 1.85% |
| Total | 1325 | 100.00% | 54 | 100.00% |
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