mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-21 16:29:59 +00:00
![Arkadi Sharshevsky](/assets/img/avatar_default.png)
>From all switchdev devices only DSA requires special FDB dump. This is due to lack of ability for syncing the hardware learned FDBs with the bridge. Due to this it is removed from switchdev and moved inside DSA. Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
468 lines
12 KiB
C
468 lines
12 KiB
C
/*
|
|
* 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.h>
|
|
#include <linux/if_ether.h>
|
|
#include <linux/list.h>
|
|
#include <linux/notifier.h>
|
|
#include <linux/timer.h>
|
|
#include <linux/workqueue.h>
|
|
#include <linux/of.h>
|
|
#include <linux/ethtool.h>
|
|
#include <net/devlink.h>
|
|
#include <net/switchdev.h>
|
|
|
|
struct tc_action;
|
|
struct phy_device;
|
|
struct fixed_phy_status;
|
|
|
|
enum dsa_tag_protocol {
|
|
DSA_TAG_PROTO_NONE = 0,
|
|
DSA_TAG_PROTO_BRCM,
|
|
DSA_TAG_PROTO_DSA,
|
|
DSA_TAG_PROTO_EDSA,
|
|
DSA_TAG_PROTO_KSZ,
|
|
DSA_TAG_PROTO_LAN9303,
|
|
DSA_TAG_PROTO_MTK,
|
|
DSA_TAG_PROTO_QCA,
|
|
DSA_TAG_PROTO_TRAILER,
|
|
DSA_TAG_LAST, /* MUST BE LAST */
|
|
};
|
|
|
|
#define DSA_MAX_SWITCHES 4
|
|
#define DSA_MAX_PORTS 12
|
|
|
|
#define DSA_RTABLE_NONE -1
|
|
|
|
struct dsa_chip_data {
|
|
/*
|
|
* How to access the switch configuration registers.
|
|
*/
|
|
struct device *host_dev;
|
|
int sw_addr;
|
|
|
|
/*
|
|
* Reference to network devices
|
|
*/
|
|
struct device *netdev[DSA_MAX_PORTS];
|
|
|
|
/* 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 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[DSA_MAX_SWITCHES];
|
|
};
|
|
|
|
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 {
|
|
struct list_head list;
|
|
|
|
/* Notifier chain for switch-wide events */
|
|
struct raw_notifier_head nh;
|
|
|
|
/* Tree identifier */
|
|
u32 tree;
|
|
|
|
/* Number of switches attached to this tree */
|
|
struct kref refcount;
|
|
|
|
/* Has this tree been applied to the hardware? */
|
|
bool applied;
|
|
|
|
/*
|
|
* Configuration data for the platform device that owns
|
|
* this dsa switch tree instance.
|
|
*/
|
|
struct dsa_platform_data *pd;
|
|
|
|
/* Copy of tag_ops->rcv for faster access in hot path */
|
|
struct sk_buff * (*rcv)(struct sk_buff *skb,
|
|
struct net_device *dev,
|
|
struct packet_type *pt,
|
|
struct net_device *orig_dev);
|
|
|
|
/*
|
|
* The switch port to which the CPU is attached.
|
|
*/
|
|
struct dsa_port *cpu_dp;
|
|
|
|
/*
|
|
* Data for the individual switch chips.
|
|
*/
|
|
struct dsa_switch *ds[DSA_MAX_SWITCHES];
|
|
|
|
/*
|
|
* Tagging protocol operations for adding and removing an
|
|
* encapsulation tag.
|
|
*/
|
|
const struct dsa_device_ops *tag_ops;
|
|
};
|
|
|
|
/* TC matchall action types, only mirroring for now */
|
|
enum dsa_port_mall_action_type {
|
|
DSA_PORT_MALL_MIRROR,
|
|
};
|
|
|
|
/* TC mirroring entry */
|
|
struct dsa_mall_mirror_tc_entry {
|
|
u8 to_local_port;
|
|
bool ingress;
|
|
};
|
|
|
|
/* TC matchall entry */
|
|
struct dsa_mall_tc_entry {
|
|
struct list_head list;
|
|
unsigned long cookie;
|
|
enum dsa_port_mall_action_type type;
|
|
union {
|
|
struct dsa_mall_mirror_tc_entry mirror;
|
|
};
|
|
};
|
|
|
|
|
|
struct dsa_port {
|
|
struct dsa_switch *ds;
|
|
unsigned int index;
|
|
const char *name;
|
|
struct dsa_port *cpu_dp;
|
|
struct net_device *netdev;
|
|
struct device_node *dn;
|
|
unsigned int ageing_time;
|
|
u8 stp_state;
|
|
struct net_device *bridge_dev;
|
|
struct devlink_port devlink_port;
|
|
/*
|
|
* Original copy of the master netdev ethtool_ops
|
|
*/
|
|
struct ethtool_ops ethtool_ops;
|
|
const struct ethtool_ops *orig_ethtool_ops;
|
|
};
|
|
|
|
struct dsa_switch {
|
|
struct device *dev;
|
|
|
|
/*
|
|
* Parent switch tree, and switch index.
|
|
*/
|
|
struct dsa_switch_tree *dst;
|
|
int index;
|
|
|
|
/* Listener for switch fabric events */
|
|
struct notifier_block nb;
|
|
|
|
/*
|
|
* Give the switch driver somewhere to hang its private data
|
|
* structure.
|
|
*/
|
|
void *priv;
|
|
|
|
/*
|
|
* Configuration data for this switch.
|
|
*/
|
|
struct dsa_chip_data *cd;
|
|
|
|
/*
|
|
* The switch operations.
|
|
*/
|
|
const struct dsa_switch_ops *ops;
|
|
|
|
/*
|
|
* An array 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[DSA_MAX_SWITCHES];
|
|
|
|
/*
|
|
* Slave mii_bus and devices for the individual ports.
|
|
*/
|
|
u32 dsa_port_mask;
|
|
u32 cpu_port_mask;
|
|
u32 enabled_port_mask;
|
|
u32 phys_mii_mask;
|
|
struct mii_bus *slave_mii_bus;
|
|
|
|
/* Ageing Time limits in msecs */
|
|
unsigned int ageing_time_min;
|
|
unsigned int ageing_time_max;
|
|
|
|
/* devlink used to represent this switch device */
|
|
struct devlink *devlink;
|
|
|
|
/* Dynamically allocated ports, keep last */
|
|
size_t num_ports;
|
|
struct dsa_port ports[];
|
|
};
|
|
|
|
static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p)
|
|
{
|
|
return !!(ds->cpu_port_mask & (1 << p));
|
|
}
|
|
|
|
static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p)
|
|
{
|
|
return !!((ds->dsa_port_mask) & (1 << p));
|
|
}
|
|
|
|
static inline bool dsa_is_normal_port(struct dsa_switch *ds, int p)
|
|
{
|
|
return !dsa_is_cpu_port(ds, p) && !dsa_is_dsa_port(ds, p);
|
|
}
|
|
|
|
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_dp->ds == ds)
|
|
return dst->cpu_dp->index;
|
|
else
|
|
return ds->rtable[dst->cpu_dp->ds->index];
|
|
}
|
|
|
|
typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid,
|
|
bool is_static, void *data);
|
|
struct dsa_switch_ops {
|
|
/*
|
|
* Legacy probing.
|
|
*/
|
|
const char *(*probe)(struct device *dsa_dev,
|
|
struct device *host_dev, int sw_addr,
|
|
void **priv);
|
|
|
|
enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds);
|
|
|
|
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);
|
|
|
|
/*
|
|
* Port's MAC EEE settings
|
|
*/
|
|
int (*set_mac_eee)(struct dsa_switch *ds, int port,
|
|
struct ethtool_eee *e);
|
|
int (*get_mac_eee)(struct dsa_switch *ds, int port,
|
|
struct ethtool_eee *e);
|
|
|
|
/* 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 (*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs);
|
|
int (*port_bridge_join)(struct dsa_switch *ds, int port,
|
|
struct net_device *bridge);
|
|
void (*port_bridge_leave)(struct dsa_switch *ds, int port,
|
|
struct net_device *bridge);
|
|
void (*port_stp_state_set)(struct dsa_switch *ds, int port,
|
|
u8 state);
|
|
void (*port_fast_age)(struct dsa_switch *ds, int port);
|
|
|
|
/*
|
|
* 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);
|
|
/*
|
|
* Forwarding database
|
|
*/
|
|
int (*port_fdb_add)(struct dsa_switch *ds, int port,
|
|
const unsigned char *addr, u16 vid);
|
|
int (*port_fdb_del)(struct dsa_switch *ds, int port,
|
|
const unsigned char *addr, u16 vid);
|
|
int (*port_fdb_dump)(struct dsa_switch *ds, int port,
|
|
dsa_fdb_dump_cb_t *cb, void *data);
|
|
|
|
/*
|
|
* Multicast database
|
|
*/
|
|
int (*port_mdb_prepare)(struct dsa_switch *ds, int port,
|
|
const struct switchdev_obj_port_mdb *mdb,
|
|
struct switchdev_trans *trans);
|
|
void (*port_mdb_add)(struct dsa_switch *ds, int port,
|
|
const struct switchdev_obj_port_mdb *mdb,
|
|
struct switchdev_trans *trans);
|
|
int (*port_mdb_del)(struct dsa_switch *ds, int port,
|
|
const struct switchdev_obj_port_mdb *mdb);
|
|
/*
|
|
* RXNFC
|
|
*/
|
|
int (*get_rxnfc)(struct dsa_switch *ds, int port,
|
|
struct ethtool_rxnfc *nfc, u32 *rule_locs);
|
|
int (*set_rxnfc)(struct dsa_switch *ds, int port,
|
|
struct ethtool_rxnfc *nfc);
|
|
|
|
/*
|
|
* TC integration
|
|
*/
|
|
int (*port_mirror_add)(struct dsa_switch *ds, int port,
|
|
struct dsa_mall_mirror_tc_entry *mirror,
|
|
bool ingress);
|
|
void (*port_mirror_del)(struct dsa_switch *ds, int port,
|
|
struct dsa_mall_mirror_tc_entry *mirror);
|
|
|
|
/*
|
|
* Cross-chip operations
|
|
*/
|
|
int (*crosschip_bridge_join)(struct dsa_switch *ds, int sw_index,
|
|
int port, struct net_device *br);
|
|
void (*crosschip_bridge_leave)(struct dsa_switch *ds, int sw_index,
|
|
int port, struct net_device *br);
|
|
};
|
|
|
|
struct dsa_switch_driver {
|
|
struct list_head list;
|
|
const struct dsa_switch_ops *ops;
|
|
};
|
|
|
|
/* Legacy driver registration */
|
|
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);
|
|
|
|
struct net_device *dsa_dev_to_net_device(struct device *dev);
|
|
|
|
/* Keep inline for faster access in hot path */
|
|
static inline bool netdev_uses_dsa(struct net_device *dev)
|
|
{
|
|
#if IS_ENABLED(CONFIG_NET_DSA)
|
|
return dev->dsa_ptr && dev->dsa_ptr->rcv;
|
|
#endif
|
|
return false;
|
|
}
|
|
|
|
struct dsa_switch *dsa_switch_alloc(struct device *dev, size_t n);
|
|
void dsa_unregister_switch(struct dsa_switch *ds);
|
|
int dsa_register_switch(struct dsa_switch *ds);
|
|
#ifdef CONFIG_PM_SLEEP
|
|
int dsa_switch_suspend(struct dsa_switch *ds);
|
|
int dsa_switch_resume(struct dsa_switch *ds);
|
|
#else
|
|
static inline int dsa_switch_suspend(struct dsa_switch *ds)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline int dsa_switch_resume(struct dsa_switch *ds)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_PM_SLEEP */
|
|
|
|
#endif
|