713 lines
19 KiB
C
713 lines
19 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/*
|
|
* include/net/dsa.h - Driver for Distributed Switch Architecture switch chips
|
|
* Copyright (c) 2008-2009 Marvell Semiconductor
|
|
*/
|
|
|
|
#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 <linux/net_tstamp.h>
|
|
#include <linux/phy.h>
|
|
#include <linux/platform_data/dsa.h>
|
|
#include <linux/phylink.h>
|
|
#include <net/devlink.h>
|
|
#include <net/switchdev.h>
|
|
|
|
struct tc_action;
|
|
struct phy_device;
|
|
struct fixed_phy_status;
|
|
struct phylink_link_state;
|
|
|
|
#define DSA_TAG_PROTO_NONE_VALUE 0
|
|
#define DSA_TAG_PROTO_BRCM_VALUE 1
|
|
#define DSA_TAG_PROTO_BRCM_PREPEND_VALUE 2
|
|
#define DSA_TAG_PROTO_DSA_VALUE 3
|
|
#define DSA_TAG_PROTO_EDSA_VALUE 4
|
|
#define DSA_TAG_PROTO_GSWIP_VALUE 5
|
|
#define DSA_TAG_PROTO_KSZ9477_VALUE 6
|
|
#define DSA_TAG_PROTO_KSZ9893_VALUE 7
|
|
#define DSA_TAG_PROTO_LAN9303_VALUE 8
|
|
#define DSA_TAG_PROTO_MTK_VALUE 9
|
|
#define DSA_TAG_PROTO_QCA_VALUE 10
|
|
#define DSA_TAG_PROTO_TRAILER_VALUE 11
|
|
#define DSA_TAG_PROTO_8021Q_VALUE 12
|
|
#define DSA_TAG_PROTO_SJA1105_VALUE 13
|
|
|
|
enum dsa_tag_protocol {
|
|
DSA_TAG_PROTO_NONE = DSA_TAG_PROTO_NONE_VALUE,
|
|
DSA_TAG_PROTO_BRCM = DSA_TAG_PROTO_BRCM_VALUE,
|
|
DSA_TAG_PROTO_BRCM_PREPEND = DSA_TAG_PROTO_BRCM_PREPEND_VALUE,
|
|
DSA_TAG_PROTO_DSA = DSA_TAG_PROTO_DSA_VALUE,
|
|
DSA_TAG_PROTO_EDSA = DSA_TAG_PROTO_EDSA_VALUE,
|
|
DSA_TAG_PROTO_GSWIP = DSA_TAG_PROTO_GSWIP_VALUE,
|
|
DSA_TAG_PROTO_KSZ9477 = DSA_TAG_PROTO_KSZ9477_VALUE,
|
|
DSA_TAG_PROTO_KSZ9893 = DSA_TAG_PROTO_KSZ9893_VALUE,
|
|
DSA_TAG_PROTO_LAN9303 = DSA_TAG_PROTO_LAN9303_VALUE,
|
|
DSA_TAG_PROTO_MTK = DSA_TAG_PROTO_MTK_VALUE,
|
|
DSA_TAG_PROTO_QCA = DSA_TAG_PROTO_QCA_VALUE,
|
|
DSA_TAG_PROTO_TRAILER = DSA_TAG_PROTO_TRAILER_VALUE,
|
|
DSA_TAG_PROTO_8021Q = DSA_TAG_PROTO_8021Q_VALUE,
|
|
DSA_TAG_PROTO_SJA1105 = DSA_TAG_PROTO_SJA1105_VALUE,
|
|
};
|
|
|
|
struct packet_type;
|
|
struct dsa_switch;
|
|
|
|
struct dsa_device_ops {
|
|
struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev);
|
|
struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev,
|
|
struct packet_type *pt);
|
|
int (*flow_dissect)(const struct sk_buff *skb, __be16 *proto,
|
|
int *offset);
|
|
/* Used to determine which traffic should match the DSA filter in
|
|
* eth_type_trans, and which, if any, should bypass it and be processed
|
|
* as regular on the master net device.
|
|
*/
|
|
bool (*filter)(const struct sk_buff *skb, struct net_device *dev);
|
|
unsigned int overhead;
|
|
const char *name;
|
|
enum dsa_tag_protocol proto;
|
|
};
|
|
|
|
#define DSA_TAG_DRIVER_ALIAS "dsa_tag-"
|
|
#define MODULE_ALIAS_DSA_TAG_DRIVER(__proto) \
|
|
MODULE_ALIAS(DSA_TAG_DRIVER_ALIAS __stringify(__proto##_VALUE))
|
|
|
|
struct dsa_skb_cb {
|
|
struct sk_buff *clone;
|
|
bool deferred_xmit;
|
|
};
|
|
|
|
struct __dsa_skb_cb {
|
|
struct dsa_skb_cb cb;
|
|
u8 priv[48 - sizeof(struct dsa_skb_cb)];
|
|
};
|
|
|
|
#define __DSA_SKB_CB(skb) ((struct __dsa_skb_cb *)((skb)->cb))
|
|
|
|
#define DSA_SKB_CB(skb) ((struct dsa_skb_cb *)((skb)->cb))
|
|
|
|
#define DSA_SKB_CB_PRIV(skb) \
|
|
((void *)(skb)->cb + offsetof(struct __dsa_skb_cb, priv))
|
|
|
|
struct dsa_switch_tree {
|
|
struct list_head list;
|
|
|
|
/* Notifier chain for switch-wide events */
|
|
struct raw_notifier_head nh;
|
|
|
|
/* Tree identifier */
|
|
unsigned int index;
|
|
|
|
/* Number of switches attached to this tree */
|
|
struct kref refcount;
|
|
|
|
/* Has this tree been applied to the hardware? */
|
|
bool setup;
|
|
|
|
/*
|
|
* Configuration data for the platform device that owns
|
|
* this dsa switch tree instance.
|
|
*/
|
|
struct dsa_platform_data *pd;
|
|
|
|
/*
|
|
* 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];
|
|
};
|
|
|
|
/* 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 {
|
|
/* A CPU port is physically connected to a master device.
|
|
* A user port exposed to userspace has a slave device.
|
|
*/
|
|
union {
|
|
struct net_device *master;
|
|
struct net_device *slave;
|
|
};
|
|
|
|
/* CPU port tagging operations used by master or slave devices */
|
|
const struct dsa_device_ops *tag_ops;
|
|
|
|
/* Copies for faster access in master receive hot path */
|
|
struct dsa_switch_tree *dst;
|
|
struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev,
|
|
struct packet_type *pt);
|
|
bool (*filter)(const struct sk_buff *skb, struct net_device *dev);
|
|
|
|
enum {
|
|
DSA_PORT_TYPE_UNUSED = 0,
|
|
DSA_PORT_TYPE_CPU,
|
|
DSA_PORT_TYPE_DSA,
|
|
DSA_PORT_TYPE_USER,
|
|
} type;
|
|
|
|
struct dsa_switch *ds;
|
|
unsigned int index;
|
|
const char *name;
|
|
struct dsa_port *cpu_dp;
|
|
const char *mac;
|
|
struct device_node *dn;
|
|
unsigned int ageing_time;
|
|
bool vlan_filtering;
|
|
u8 stp_state;
|
|
struct net_device *bridge_dev;
|
|
struct devlink_port devlink_port;
|
|
struct phylink *pl;
|
|
struct phylink_config pl_config;
|
|
|
|
struct work_struct xmit_work;
|
|
struct sk_buff_head xmit_queue;
|
|
|
|
/*
|
|
* Give the switch driver somewhere to hang its per-port private data
|
|
* structures (accessible from the tagger).
|
|
*/
|
|
void *priv;
|
|
|
|
/*
|
|
* Original copy of the master netdev ethtool_ops
|
|
*/
|
|
const struct ethtool_ops *orig_ethtool_ops;
|
|
|
|
/*
|
|
* Original copy of the master netdev net_device_ops
|
|
*/
|
|
const struct net_device_ops *orig_ndo_ops;
|
|
};
|
|
|
|
struct dsa_switch {
|
|
struct device *dev;
|
|
|
|
/*
|
|
* Parent switch tree, and switch index.
|
|
*/
|
|
struct dsa_switch_tree *dst;
|
|
unsigned 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 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;
|
|
|
|
/* Number of switch port queues */
|
|
unsigned int num_tx_queues;
|
|
|
|
/* Disallow bridge core from requesting different VLAN awareness
|
|
* settings on ports if not hardware-supported
|
|
*/
|
|
bool vlan_filtering_is_global;
|
|
|
|
/* In case vlan_filtering_is_global is set, the VLAN awareness state
|
|
* should be retrieved from here and not from the per-port settings.
|
|
*/
|
|
bool vlan_filtering;
|
|
|
|
unsigned long *bitmap;
|
|
unsigned long _bitmap;
|
|
|
|
/* Dynamically allocated ports, keep last */
|
|
size_t num_ports;
|
|
struct dsa_port ports[];
|
|
};
|
|
|
|
static inline const struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p)
|
|
{
|
|
return &ds->ports[p];
|
|
}
|
|
|
|
static inline bool dsa_is_unused_port(struct dsa_switch *ds, int p)
|
|
{
|
|
return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_UNUSED;
|
|
}
|
|
|
|
static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p)
|
|
{
|
|
return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_CPU;
|
|
}
|
|
|
|
static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p)
|
|
{
|
|
return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_DSA;
|
|
}
|
|
|
|
static inline bool dsa_is_user_port(struct dsa_switch *ds, int p)
|
|
{
|
|
return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_USER;
|
|
}
|
|
|
|
static inline u32 dsa_user_ports(struct dsa_switch *ds)
|
|
{
|
|
u32 mask = 0;
|
|
int p;
|
|
|
|
for (p = 0; p < ds->num_ports; p++)
|
|
if (dsa_is_user_port(ds, p))
|
|
mask |= BIT(p);
|
|
|
|
return mask;
|
|
}
|
|
|
|
/* Return the local port used to reach an arbitrary switch port */
|
|
static inline unsigned int dsa_towards_port(struct dsa_switch *ds, int device,
|
|
int port)
|
|
{
|
|
if (device == ds->index)
|
|
return port;
|
|
else
|
|
return ds->rtable[device];
|
|
}
|
|
|
|
/* Return the local port used to reach the dedicated CPU port */
|
|
static inline unsigned int dsa_upstream_port(struct dsa_switch *ds, int port)
|
|
{
|
|
const struct dsa_port *dp = dsa_to_port(ds, port);
|
|
const struct dsa_port *cpu_dp = dp->cpu_dp;
|
|
|
|
if (!cpu_dp)
|
|
return port;
|
|
|
|
return dsa_towards_port(ds, cpu_dp->ds->index, cpu_dp->index);
|
|
}
|
|
|
|
static inline bool dsa_port_is_vlan_filtering(const struct dsa_port *dp)
|
|
{
|
|
const struct dsa_switch *ds = dp->ds;
|
|
|
|
if (ds->vlan_filtering_is_global)
|
|
return ds->vlan_filtering;
|
|
else
|
|
return dp->vlan_filtering;
|
|
}
|
|
|
|
typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid,
|
|
bool is_static, void *data);
|
|
struct dsa_switch_ops {
|
|
enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds,
|
|
int port);
|
|
|
|
int (*setup)(struct dsa_switch *ds);
|
|
void (*teardown)(struct dsa_switch *ds);
|
|
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);
|
|
|
|
/*
|
|
* PHYLINK integration
|
|
*/
|
|
void (*phylink_validate)(struct dsa_switch *ds, int port,
|
|
unsigned long *supported,
|
|
struct phylink_link_state *state);
|
|
int (*phylink_mac_link_state)(struct dsa_switch *ds, int port,
|
|
struct phylink_link_state *state);
|
|
void (*phylink_mac_config)(struct dsa_switch *ds, int port,
|
|
unsigned int mode,
|
|
const struct phylink_link_state *state);
|
|
void (*phylink_mac_an_restart)(struct dsa_switch *ds, int port);
|
|
void (*phylink_mac_link_down)(struct dsa_switch *ds, int port,
|
|
unsigned int mode,
|
|
phy_interface_t interface);
|
|
void (*phylink_mac_link_up)(struct dsa_switch *ds, int port,
|
|
unsigned int mode,
|
|
phy_interface_t interface,
|
|
struct phy_device *phydev);
|
|
void (*phylink_fixed_state)(struct dsa_switch *ds, int port,
|
|
struct phylink_link_state *state);
|
|
/*
|
|
* ethtool hardware statistics.
|
|
*/
|
|
void (*get_strings)(struct dsa_switch *ds, int port,
|
|
u32 stringset, uint8_t *data);
|
|
void (*get_ethtool_stats)(struct dsa_switch *ds,
|
|
int port, uint64_t *data);
|
|
int (*get_sset_count)(struct dsa_switch *ds, int port, int sset);
|
|
void (*get_ethtool_phy_stats)(struct dsa_switch *ds,
|
|
int port, uint64_t *data);
|
|
|
|
/*
|
|
* 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);
|
|
|
|
/*
|
|
* ethtool timestamp info
|
|
*/
|
|
int (*get_ts_info)(struct dsa_switch *ds, int port,
|
|
struct ethtool_ts_info *ts);
|
|
|
|
/*
|
|
* 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);
|
|
|
|
/*
|
|
* 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);
|
|
int (*port_egress_floods)(struct dsa_switch *ds, int port,
|
|
bool unicast, bool multicast);
|
|
|
|
/*
|
|
* 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);
|
|
void (*port_vlan_add)(struct dsa_switch *ds, int port,
|
|
const struct switchdev_obj_port_vlan *vlan);
|
|
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);
|
|
void (*port_mdb_add)(struct dsa_switch *ds, int port,
|
|
const struct switchdev_obj_port_mdb *mdb);
|
|
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);
|
|
|
|
/*
|
|
* PTP functionality
|
|
*/
|
|
int (*port_hwtstamp_get)(struct dsa_switch *ds, int port,
|
|
struct ifreq *ifr);
|
|
int (*port_hwtstamp_set)(struct dsa_switch *ds, int port,
|
|
struct ifreq *ifr);
|
|
bool (*port_txtstamp)(struct dsa_switch *ds, int port,
|
|
struct sk_buff *clone, unsigned int type);
|
|
bool (*port_rxtstamp)(struct dsa_switch *ds, int port,
|
|
struct sk_buff *skb, unsigned int type);
|
|
|
|
/*
|
|
* Deferred frame Tx
|
|
*/
|
|
netdev_tx_t (*port_deferred_xmit)(struct dsa_switch *ds, int port,
|
|
struct sk_buff *skb);
|
|
};
|
|
|
|
struct dsa_switch_driver {
|
|
struct list_head list;
|
|
const struct dsa_switch_ops *ops;
|
|
};
|
|
|
|
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;
|
|
}
|
|
|
|
static inline bool dsa_can_decode(const struct sk_buff *skb,
|
|
struct net_device *dev)
|
|
{
|
|
#if IS_ENABLED(CONFIG_NET_DSA)
|
|
return !dev->dsa_ptr->filter || dev->dsa_ptr->filter(skb, dev);
|
|
#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 */
|
|
|
|
enum dsa_notifier_type {
|
|
DSA_PORT_REGISTER,
|
|
DSA_PORT_UNREGISTER,
|
|
};
|
|
|
|
struct dsa_notifier_info {
|
|
struct net_device *dev;
|
|
};
|
|
|
|
struct dsa_notifier_register_info {
|
|
struct dsa_notifier_info info; /* must be first */
|
|
struct net_device *master;
|
|
unsigned int port_number;
|
|
unsigned int switch_number;
|
|
};
|
|
|
|
static inline struct net_device *
|
|
dsa_notifier_info_to_dev(const struct dsa_notifier_info *info)
|
|
{
|
|
return info->dev;
|
|
}
|
|
|
|
#if IS_ENABLED(CONFIG_NET_DSA)
|
|
int register_dsa_notifier(struct notifier_block *nb);
|
|
int unregister_dsa_notifier(struct notifier_block *nb);
|
|
int call_dsa_notifiers(unsigned long val, struct net_device *dev,
|
|
struct dsa_notifier_info *info);
|
|
#else
|
|
static inline int register_dsa_notifier(struct notifier_block *nb)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int unregister_dsa_notifier(struct notifier_block *nb)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int call_dsa_notifiers(unsigned long val, struct net_device *dev,
|
|
struct dsa_notifier_info *info)
|
|
{
|
|
return NOTIFY_DONE;
|
|
}
|
|
#endif
|
|
|
|
/* Broadcom tag specific helpers to insert and extract queue/port number */
|
|
#define BRCM_TAG_SET_PORT_QUEUE(p, q) ((p) << 8 | q)
|
|
#define BRCM_TAG_GET_PORT(v) ((v) >> 8)
|
|
#define BRCM_TAG_GET_QUEUE(v) ((v) & 0xff)
|
|
|
|
|
|
netdev_tx_t dsa_enqueue_skb(struct sk_buff *skb, struct net_device *dev);
|
|
int dsa_port_get_phy_strings(struct dsa_port *dp, uint8_t *data);
|
|
int dsa_port_get_ethtool_phy_stats(struct dsa_port *dp, uint64_t *data);
|
|
int dsa_port_get_phy_sset_count(struct dsa_port *dp);
|
|
void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up);
|
|
|
|
struct dsa_tag_driver {
|
|
const struct dsa_device_ops *ops;
|
|
struct list_head list;
|
|
struct module *owner;
|
|
};
|
|
|
|
void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[],
|
|
unsigned int count,
|
|
struct module *owner);
|
|
void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[],
|
|
unsigned int count);
|
|
|
|
#define dsa_tag_driver_module_drivers(__dsa_tag_drivers_array, __count) \
|
|
static int __init dsa_tag_driver_module_init(void) \
|
|
{ \
|
|
dsa_tag_drivers_register(__dsa_tag_drivers_array, __count, \
|
|
THIS_MODULE); \
|
|
return 0; \
|
|
} \
|
|
module_init(dsa_tag_driver_module_init); \
|
|
\
|
|
static void __exit dsa_tag_driver_module_exit(void) \
|
|
{ \
|
|
dsa_tag_drivers_unregister(__dsa_tag_drivers_array, __count); \
|
|
} \
|
|
module_exit(dsa_tag_driver_module_exit)
|
|
|
|
/**
|
|
* module_dsa_tag_drivers() - Helper macro for registering DSA tag
|
|
* drivers
|
|
* @__ops_array: Array of tag driver strucutres
|
|
*
|
|
* Helper macro for DSA tag drivers which do not do anything special
|
|
* in module init/exit. Each module may only use this macro once, and
|
|
* calling it replaces module_init() and module_exit().
|
|
*/
|
|
#define module_dsa_tag_drivers(__ops_array) \
|
|
dsa_tag_driver_module_drivers(__ops_array, ARRAY_SIZE(__ops_array))
|
|
|
|
#define DSA_TAG_DRIVER_NAME(__ops) dsa_tag_driver ## _ ## __ops
|
|
|
|
/* Create a static structure we can build a linked list of dsa_tag
|
|
* drivers
|
|
*/
|
|
#define DSA_TAG_DRIVER(__ops) \
|
|
static struct dsa_tag_driver DSA_TAG_DRIVER_NAME(__ops) = { \
|
|
.ops = &__ops, \
|
|
}
|
|
|
|
/**
|
|
* module_dsa_tag_driver() - Helper macro for registering a single DSA tag
|
|
* driver
|
|
* @__ops: Single tag driver structures
|
|
*
|
|
* Helper macro for DSA tag drivers which do not do anything special
|
|
* in module init/exit. Each module may only use this macro once, and
|
|
* calling it replaces module_init() and module_exit().
|
|
*/
|
|
#define module_dsa_tag_driver(__ops) \
|
|
DSA_TAG_DRIVER(__ops); \
|
|
\
|
|
static struct dsa_tag_driver *dsa_tag_driver_array[] = { \
|
|
&DSA_TAG_DRIVER_NAME(__ops) \
|
|
}; \
|
|
module_dsa_tag_drivers(dsa_tag_driver_array)
|
|
#endif
|
|
|