diff options
Diffstat (limited to 'include/net/dsa.h')
| -rw-r--r-- | include/net/dsa.h | 1100 |
1 files changed, 772 insertions, 328 deletions
diff --git a/include/net/dsa.h b/include/net/dsa.h index 35429a140dfa..55e2d97f247e 100644 --- a/include/net/dsa.h +++ b/include/net/dsa.h @@ -22,10 +22,8 @@ #include <net/devlink.h> #include <net/switchdev.h> +struct dsa_8021q_context; 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 @@ -45,10 +43,22 @@ struct phylink_link_state; #define DSA_TAG_PROTO_OCELOT_VALUE 15 #define DSA_TAG_PROTO_AR9331_VALUE 16 #define DSA_TAG_PROTO_RTL4_A_VALUE 17 +#define DSA_TAG_PROTO_HELLCREEK_VALUE 18 +#define DSA_TAG_PROTO_XRS700X_VALUE 19 +#define DSA_TAG_PROTO_OCELOT_8021Q_VALUE 20 +#define DSA_TAG_PROTO_SEVILLE_VALUE 21 +#define DSA_TAG_PROTO_BRCM_LEGACY_VALUE 22 +#define DSA_TAG_PROTO_SJA1110_VALUE 23 +#define DSA_TAG_PROTO_RTL8_4_VALUE 24 +#define DSA_TAG_PROTO_RTL8_4T_VALUE 25 +#define DSA_TAG_PROTO_RZN1_A5PSW_VALUE 26 +#define DSA_TAG_PROTO_LAN937X_VALUE 27 +#define DSA_TAG_PROTO_VSC73XX_8021Q_VALUE 28 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_LEGACY = DSA_TAG_PROTO_BRCM_LEGACY_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, @@ -65,65 +75,53 @@ enum dsa_tag_protocol { DSA_TAG_PROTO_OCELOT = DSA_TAG_PROTO_OCELOT_VALUE, DSA_TAG_PROTO_AR9331 = DSA_TAG_PROTO_AR9331_VALUE, DSA_TAG_PROTO_RTL4_A = DSA_TAG_PROTO_RTL4_A_VALUE, + DSA_TAG_PROTO_HELLCREEK = DSA_TAG_PROTO_HELLCREEK_VALUE, + DSA_TAG_PROTO_XRS700X = DSA_TAG_PROTO_XRS700X_VALUE, + DSA_TAG_PROTO_OCELOT_8021Q = DSA_TAG_PROTO_OCELOT_8021Q_VALUE, + DSA_TAG_PROTO_SEVILLE = DSA_TAG_PROTO_SEVILLE_VALUE, + DSA_TAG_PROTO_SJA1110 = DSA_TAG_PROTO_SJA1110_VALUE, + DSA_TAG_PROTO_RTL8_4 = DSA_TAG_PROTO_RTL8_4_VALUE, + DSA_TAG_PROTO_RTL8_4T = DSA_TAG_PROTO_RTL8_4T_VALUE, + DSA_TAG_PROTO_RZN1_A5PSW = DSA_TAG_PROTO_RZN1_A5PSW_VALUE, + DSA_TAG_PROTO_LAN937X = DSA_TAG_PROTO_LAN937X_VALUE, + DSA_TAG_PROTO_VSC73XX_8021Q = DSA_TAG_PROTO_VSC73XX_8021Q_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); + struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev); void (*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; + int (*connect)(struct dsa_switch *ds); + void (*disconnect)(struct dsa_switch *ds); + unsigned int needed_headroom; + unsigned int needed_tailroom; const char *name; enum dsa_tag_protocol proto; /* Some tagging protocols either mangle or shift the destination MAC - * address, in which case the DSA master would drop packets on ingress + * address, in which case the DSA conduit would drop packets on ingress * if what it understands out of the destination MAC address is not in * its RX filter. */ - bool promisc_on_master; - bool tail_tag; -}; - -/* This structure defines the control interfaces that are overlayed by the - * DSA layer on top of the DSA CPU/management net_device instance. This is - * used by the core net_device layer while calling various net_device_ops - * function pointers. - */ -struct dsa_netdevice_ops { - int (*ndo_do_ioctl)(struct net_device *dev, struct ifreq *ifr, - int cmd); -}; - -#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 promisc_on_conduit; }; -struct __dsa_skb_cb { - struct dsa_skb_cb cb; - u8 priv[48 - sizeof(struct dsa_skb_cb)]; +struct dsa_lag { + struct net_device *dev; + unsigned int id; + struct mutex fdb_lock; + struct list_head fdbs; + refcount_t refcount; }; -#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; + /* List of switch ports */ + struct list_head ports; + /* Notifier chain for switch-wide events */ struct raw_notifier_head nh; @@ -133,6 +131,19 @@ struct dsa_switch_tree { /* Number of switches attached to this tree */ struct kref refcount; + /* Maps offloaded LAG netdevs to a zero-based linear ID for + * drivers that need it. + */ + struct dsa_lag **lags; + + /* Tagging protocol operations */ + const struct dsa_device_ops *tag_ops; + + /* Default tagging protocol preferred by the switches in this + * tree. + */ + enum dsa_tag_protocol default_proto; + /* Has this tree been applied to the hardware? */ bool setup; @@ -142,13 +153,51 @@ struct dsa_switch_tree { */ struct dsa_platform_data *pd; - /* List of switch ports */ - struct list_head ports; - /* List of DSA links composing the routing table */ struct list_head rtable; + + /* Length of "lags" array */ + unsigned int lags_len; + + /* Track the largest switch index within a tree */ + unsigned int last_switch; }; +/* LAG IDs are one-based, the dst->lags array is zero-based */ +#define dsa_lags_foreach_id(_id, _dst) \ + for ((_id) = 1; (_id) <= (_dst)->lags_len; (_id)++) \ + if ((_dst)->lags[(_id) - 1]) + +#define dsa_lag_foreach_port(_dp, _dst, _lag) \ + list_for_each_entry((_dp), &(_dst)->ports, list) \ + if (dsa_port_offloads_lag((_dp), (_lag))) + +#define dsa_hsr_foreach_port(_dp, _ds, _hsr) \ + list_for_each_entry((_dp), &(_ds)->dst->ports, list) \ + if ((_dp)->ds == (_ds) && (_dp)->hsr_dev == (_hsr)) + +static inline struct dsa_lag *dsa_lag_by_id(struct dsa_switch_tree *dst, + unsigned int id) +{ + /* DSA LAG IDs are one-based, dst->lags is zero-based */ + return dst->lags[id - 1]; +} + +static inline int dsa_lag_id(struct dsa_switch_tree *dst, + struct net_device *lag_dev) +{ + unsigned int id; + + dsa_lags_foreach_id(id, dst) { + struct dsa_lag *lag = dsa_lag_by_id(dst, id); + + if (lag->dev == lag_dev) + return lag->id; + } + + return -ENODEV; +} + /* TC matchall action types */ enum dsa_port_mall_action_type { DSA_PORT_MALL_MIRROR, @@ -178,24 +227,34 @@ struct dsa_mall_tc_entry { }; }; +struct dsa_bridge { + struct net_device *dev; + unsigned int num; + bool tx_fwd_offload; + refcount_t refcount; +}; struct dsa_port { - /* A CPU port is physically connected to a master device. - * A user port exposed to userspace has a slave device. + /* A CPU port is physically connected to a conduit device. A user port + * exposes a network device to user-space, called 'user' here. */ union { - struct net_device *master; - struct net_device *slave; + struct net_device *conduit; + struct net_device *user; }; - /* CPU port tagging operations used by master or slave devices */ + /* Copy of the tagging protocol operations, for quicker access + * in the data path. Valid only for the CPU ports. + */ const struct dsa_device_ops *tag_ops; - /* Copies for faster access in master receive hot path */ + /* Copies for faster access in conduit 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); + struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev); + + struct dsa_switch *ds; + + unsigned int index; enum { DSA_PORT_TYPE_UNUSED = 0, @@ -204,42 +263,75 @@ struct dsa_port { DSA_PORT_TYPE_USER, } type; - struct dsa_switch *ds; - unsigned int index; const char *name; struct dsa_port *cpu_dp; - const char *mac; + u8 mac[ETH_ALEN]; + + u8 stp_state; + + /* Warning: the following bit fields are not atomic, and updating them + * can only be done from code paths where concurrency is not possible + * (probe time or under rtnl_lock). + */ + u8 vlan_filtering:1; + + /* Managed by DSA on user ports and by drivers on CPU and DSA ports */ + u8 learning:1; + + u8 lag_tx_enabled:1; + + /* conduit state bits, valid only on CPU ports */ + u8 conduit_admin_up:1; + u8 conduit_oper_up:1; + + /* Valid only on user ports */ + u8 cpu_port_in_lag:1; + + u8 setup:1; + struct device_node *dn; unsigned int ageing_time; - bool vlan_filtering; - u8 stp_state; - struct net_device *bridge_dev; + + struct dsa_bridge *bridge; struct devlink_port devlink_port; - bool devlink_port_setup; struct phylink *pl; struct phylink_config pl_config; + struct dsa_lag *lag; + struct net_device *hsr_dev; struct list_head list; /* - * 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 + * Original copy of the conduit netdev ethtool_ops */ const struct ethtool_ops *orig_ethtool_ops; - /* - * Original copy of the master netdev net_device_ops + /* List of MAC addresses that must be forwarded on this port. + * These are only valid on CPU ports and DSA links. */ - const struct dsa_netdevice_ops *netdev_ops; + struct mutex addr_lists_lock; + struct list_head fdbs; + struct list_head mdbs; - bool setup; + struct mutex vlans_lock; + union { + /* List of VLANs that CPU and DSA ports are members of. + * Access to this is serialized by the sleepable @vlans_lock. + */ + struct list_head vlans; + /* List of VLANs that user ports are members of. + * Access to this is serialized by netif_addr_lock_bh(). + */ + struct list_head user_vlans; + }; }; +static inline struct dsa_port * +dsa_phylink_to_port(struct phylink_config *config) +{ + return container_of(config, struct dsa_port, pl_config); +} + /* TODO: ideally DSA ports would have a single dp->link_dp member, * and no dst->rtable nor this struct dsa_link would be needed, * but this would require some more complex tree walking, @@ -251,9 +343,37 @@ struct dsa_link { struct list_head list; }; -struct dsa_switch { - bool setup; +enum dsa_db_type { + DSA_DB_PORT, + DSA_DB_LAG, + DSA_DB_BRIDGE, +}; + +struct dsa_db { + enum dsa_db_type type; + + union { + const struct dsa_port *dp; + struct dsa_lag lag; + struct dsa_bridge bridge; + }; +}; + +struct dsa_mac_addr { + unsigned char addr[ETH_ALEN]; + u16 vid; + refcount_t refcount; + struct list_head list; + struct dsa_db db; +}; +struct dsa_vlan { + u16 vid; + refcount_t refcount; + struct list_head list; +}; + +struct dsa_switch { struct device *dev; /* @@ -262,6 +382,68 @@ struct dsa_switch { struct dsa_switch_tree *dst; unsigned int index; + /* Warning: the following bit fields are not atomic, and updating them + * can only be done from code paths where concurrency is not possible + * (probe time or under rtnl_lock). + */ + u32 setup:1; + + /* Disallow bridge core from requesting different VLAN awareness + * settings on ports if not hardware-supported + */ + u32 vlan_filtering_is_global:1; + + /* Keep VLAN filtering enabled on ports not offloading any upper */ + u32 needs_standalone_vlan_filtering:1; + + /* Pass .port_vlan_add and .port_vlan_del to drivers even for bridges + * that have vlan_filtering=0. All drivers should ideally set this (and + * then the option would get removed), but it is unknown whether this + * would break things or not. + */ + u32 configure_vlan_while_not_filtering:1; + + /* Pop the default_pvid of VLAN-unaware bridge ports from tagged frames. + * DEPRECATED: Do NOT set this field in new drivers. Instead look at + * the dsa_software_vlan_untag() comments. + */ + u32 untag_bridge_pvid:1; + /* Pop the default_pvid of VLAN-aware bridge ports from tagged frames. + * Useful if the switch cannot preserve the VLAN tag as seen on the + * wire for user port ingress, and chooses to send all frames as + * VLAN-tagged to the CPU, including those which were originally + * untagged. + */ + u32 untag_vlan_aware_bridge_pvid:1; + + /* Let DSA manage the FDB entries towards the + * CPU, based on the software bridge database. + */ + u32 assisted_learning_on_cpu_port:1; + + /* In case vlan_filtering_is_global is set, the VLAN awareness state + * should be retrieved from here and not from the per-port settings. + */ + u32 vlan_filtering:1; + + /* For switches that only have the MRU configurable. To ensure the + * configured MTU is not exceeded, normalization of MRU on all bridged + * interfaces is needed. + */ + u32 mtu_enforcement_ingress:1; + + /* Drivers that isolate the FDBs of multiple bridges must set this + * to true to receive the bridge as an argument in .port_fdb_{add,del} + * and .port_mdb_{add,del}. Otherwise, the bridge.num will always be + * passed as zero. + */ + u32 fdb_isolation:1; + + /* Drivers that have global DSCP mapping settings must set this to + * true to automatically apply the settings to all ports. + */ + u32 dscp_prio_mapping_is_global:1; + /* Listener for switch fabric events */ struct notifier_block nb; @@ -271,6 +453,8 @@ struct dsa_switch { */ void *priv; + void *tagger_data; + /* * Configuration data for this switch. */ @@ -282,58 +466,45 @@ struct dsa_switch { const struct dsa_switch_ops *ops; /* - * Slave mii_bus and devices for the individual ports. + * Allow a DSA switch driver to override the phylink MAC ops + */ + const struct phylink_mac_ops *phylink_mac_ops; + + /* + * User mii_bus and devices for the individual ports. */ u32 phys_mii_mask; - struct mii_bus *slave_mii_bus; + struct mii_bus *user_mii_bus; /* Ageing Time limits in msecs */ unsigned int ageing_time_min; unsigned int ageing_time_max; + /* Storage for drivers using tag_8021q */ + struct dsa_8021q_context *tag_8021q_ctx; + /* 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; - - /* Pass .port_vlan_add and .port_vlan_del to drivers even for bridges - * that have vlan_filtering=0. All drivers should ideally set this (and - * then the option would get removed), but it is unknown whether this - * would break things or not. - */ - bool configure_vlan_while_not_filtering; - - /* If the switch driver always programs the CPU port as egress tagged - * despite the VLAN configuration indicating otherwise, then setting - * @untag_bridge_pvid will force the DSA receive path to pop the bridge's - * default_pvid VLAN tagged frames to offer a consistent behavior - * between a vlan_filtering=0 and vlan_filtering=1 bridge device. + /* Drivers that benefit from having an ID associated with each + * offloaded LAG should set this to the maximum number of + * supported IDs. DSA will then maintain a mapping of _at + * least_ these many IDs, accessible to drivers via + * dsa_lag_id(). */ - bool untag_bridge_pvid; + unsigned int num_lag_ids; - /* 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; - - /* MAC PCS does not provide link state change interrupt, and requires - * polling. Flag passed on to PHYLINK. + /* Drivers that support bridge forwarding offload or FDB isolation + * should set this to the maximum number of bridges spanning the same + * switch tree (or all trees, in the case of cross-tree bridging + * support) that can be offloaded. */ - bool pcs_poll; + unsigned int max_num_bridges; - /* For switches that only have the MRU configurable. To ensure the - * configured MTU is not exceeded, normalization of MRU on all bridged - * interfaces is needed. - */ - bool mtu_enforcement_ingress; - - size_t num_ports; + unsigned int num_ports; }; static inline struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p) @@ -348,6 +519,32 @@ static inline struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p) return NULL; } +static inline bool dsa_port_is_dsa(struct dsa_port *port) +{ + return port->type == DSA_PORT_TYPE_DSA; +} + +static inline bool dsa_port_is_cpu(struct dsa_port *port) +{ + return port->type == DSA_PORT_TYPE_CPU; +} + +static inline bool dsa_port_is_user(struct dsa_port *dp) +{ + return dp->type == DSA_PORT_TYPE_USER; +} + +static inline bool dsa_port_is_unused(struct dsa_port *dp) +{ + return dp->type == DSA_PORT_TYPE_UNUSED; +} + +static inline bool dsa_port_conduit_is_operational(struct dsa_port *dp) +{ + return dsa_port_is_cpu(dp) && dp->conduit_admin_up && + dp->conduit_oper_up; +} + static inline bool dsa_is_unused_port(struct dsa_switch *ds, int p) { return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_UNUSED; @@ -368,14 +565,68 @@ static inline bool dsa_is_user_port(struct dsa_switch *ds, int p) return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_USER; } +#define dsa_tree_for_each_user_port(_dp, _dst) \ + list_for_each_entry((_dp), &(_dst)->ports, list) \ + if (dsa_port_is_user((_dp))) + +#define dsa_tree_for_each_user_port_continue_reverse(_dp, _dst) \ + list_for_each_entry_continue_reverse((_dp), &(_dst)->ports, list) \ + if (dsa_port_is_user((_dp))) + +#define dsa_tree_for_each_cpu_port(_dp, _dst) \ + list_for_each_entry((_dp), &(_dst)->ports, list) \ + if (dsa_port_is_cpu((_dp))) + +#define dsa_switch_for_each_port(_dp, _ds) \ + list_for_each_entry((_dp), &(_ds)->dst->ports, list) \ + if ((_dp)->ds == (_ds)) + +#define dsa_switch_for_each_port_safe(_dp, _next, _ds) \ + list_for_each_entry_safe((_dp), (_next), &(_ds)->dst->ports, list) \ + if ((_dp)->ds == (_ds)) + +#define dsa_switch_for_each_port_continue_reverse(_dp, _ds) \ + list_for_each_entry_continue_reverse((_dp), &(_ds)->dst->ports, list) \ + if ((_dp)->ds == (_ds)) + +#define dsa_switch_for_each_available_port(_dp, _ds) \ + dsa_switch_for_each_port((_dp), (_ds)) \ + if (!dsa_port_is_unused((_dp))) + +#define dsa_switch_for_each_user_port(_dp, _ds) \ + dsa_switch_for_each_port((_dp), (_ds)) \ + if (dsa_port_is_user((_dp))) + +#define dsa_switch_for_each_user_port_continue_reverse(_dp, _ds) \ + dsa_switch_for_each_port_continue_reverse((_dp), (_ds)) \ + if (dsa_port_is_user((_dp))) + +#define dsa_switch_for_each_cpu_port(_dp, _ds) \ + dsa_switch_for_each_port((_dp), (_ds)) \ + if (dsa_port_is_cpu((_dp))) + +#define dsa_switch_for_each_cpu_port_continue_reverse(_dp, _ds) \ + dsa_switch_for_each_port_continue_reverse((_dp), (_ds)) \ + if (dsa_port_is_cpu((_dp))) + static inline u32 dsa_user_ports(struct dsa_switch *ds) { + struct dsa_port *dp; + u32 mask = 0; + + dsa_switch_for_each_user_port(dp, ds) + mask |= BIT(dp->index); + + return mask; +} + +static inline u32 dsa_cpu_ports(struct dsa_switch *ds) +{ + struct dsa_port *cpu_dp; u32 mask = 0; - int p; - for (p = 0; p < ds->num_ports; p++) - if (dsa_is_user_port(ds, p)) - mask |= BIT(p); + dsa_switch_for_each_cpu_port(cpu_dp, ds) + mask |= BIT(cpu_dp->index); return mask; } @@ -415,6 +666,50 @@ static inline unsigned int dsa_upstream_port(struct dsa_switch *ds, int port) return dsa_towards_port(ds, cpu_dp->ds->index, cpu_dp->index); } +/* Return true if this is the local port used to reach the CPU port */ +static inline bool dsa_is_upstream_port(struct dsa_switch *ds, int port) +{ + if (dsa_is_unused_port(ds, port)) + return false; + + return port == dsa_upstream_port(ds, port); +} + +/* Return true if this is a DSA port leading away from the CPU */ +static inline bool dsa_is_downstream_port(struct dsa_switch *ds, int port) +{ + return dsa_is_dsa_port(ds, port) && !dsa_is_upstream_port(ds, port); +} + +/* Return the local port used to reach the CPU port */ +static inline unsigned int dsa_switch_upstream_port(struct dsa_switch *ds) +{ + struct dsa_port *dp; + + dsa_switch_for_each_available_port(dp, ds) { + return dsa_upstream_port(ds, dp->index); + } + + return ds->num_ports; +} + +/* Return true if @upstream_ds is an upstream switch of @downstream_ds, meaning + * that the routing port from @downstream_ds to @upstream_ds is also the port + * which @downstream_ds uses to reach its dedicated CPU. + */ +static inline bool dsa_switch_is_upstream_of(struct dsa_switch *upstream_ds, + struct dsa_switch *downstream_ds) +{ + int routing_port; + + if (upstream_ds == downstream_ds) + return true; + + routing_port = dsa_routing_port(downstream_ds, upstream_ds->index); + + return dsa_is_upstream_port(downstream_ds, routing_port); +} + static inline bool dsa_port_is_vlan_filtering(const struct dsa_port *dp) { const struct dsa_switch *ds = dp->ds; @@ -425,15 +720,157 @@ static inline bool dsa_port_is_vlan_filtering(const struct dsa_port *dp) return dp->vlan_filtering; } +static inline unsigned int dsa_port_lag_id_get(struct dsa_port *dp) +{ + return dp->lag ? dp->lag->id : 0; +} + +static inline struct net_device *dsa_port_lag_dev_get(struct dsa_port *dp) +{ + return dp->lag ? dp->lag->dev : NULL; +} + +static inline bool dsa_port_offloads_lag(struct dsa_port *dp, + const struct dsa_lag *lag) +{ + return dsa_port_lag_dev_get(dp) == lag->dev; +} + +static inline struct net_device *dsa_port_to_conduit(const struct dsa_port *dp) +{ + if (dp->cpu_port_in_lag) + return dsa_port_lag_dev_get(dp->cpu_dp); + + return dp->cpu_dp->conduit; +} + +static inline +struct net_device *dsa_port_to_bridge_port(const struct dsa_port *dp) +{ + if (!dp->bridge) + return NULL; + + if (dp->lag) + return dp->lag->dev; + else if (dp->hsr_dev) + return dp->hsr_dev; + + return dp->user; +} + +static inline struct net_device * +dsa_port_bridge_dev_get(const struct dsa_port *dp) +{ + return dp->bridge ? dp->bridge->dev : NULL; +} + +static inline unsigned int dsa_port_bridge_num_get(struct dsa_port *dp) +{ + return dp->bridge ? dp->bridge->num : 0; +} + +static inline bool dsa_port_bridge_same(const struct dsa_port *a, + const struct dsa_port *b) +{ + struct net_device *br_a = dsa_port_bridge_dev_get(a); + struct net_device *br_b = dsa_port_bridge_dev_get(b); + + /* Standalone ports are not in the same bridge with one another */ + return (!br_a || !br_b) ? false : (br_a == br_b); +} + +static inline bool dsa_port_offloads_bridge_port(struct dsa_port *dp, + const struct net_device *dev) +{ + return dsa_port_to_bridge_port(dp) == dev; +} + +static inline bool +dsa_port_offloads_bridge_dev(struct dsa_port *dp, + const struct net_device *bridge_dev) +{ + /* DSA ports connected to a bridge, and event was emitted + * for the bridge. + */ + return dsa_port_bridge_dev_get(dp) == bridge_dev; +} + +static inline bool dsa_port_offloads_bridge(struct dsa_port *dp, + const struct dsa_bridge *bridge) +{ + return dsa_port_bridge_dev_get(dp) == bridge->dev; +} + +/* Returns true if any port of this tree offloads the given net_device */ +static inline bool dsa_tree_offloads_bridge_port(struct dsa_switch_tree *dst, + const struct net_device *dev) +{ + struct dsa_port *dp; + + list_for_each_entry(dp, &dst->ports, list) + if (dsa_port_offloads_bridge_port(dp, dev)) + return true; + + return false; +} + +/* Returns true if any port of this tree offloads the given bridge */ +static inline bool +dsa_tree_offloads_bridge_dev(struct dsa_switch_tree *dst, + const struct net_device *bridge_dev) +{ + struct dsa_port *dp; + + list_for_each_entry(dp, &dst->ports, list) + if (dsa_port_offloads_bridge_dev(dp, bridge_dev)) + return true; + + return false; +} + +static inline bool dsa_port_tree_same(const struct dsa_port *a, + const struct dsa_port *b) +{ + return a->ds->dst == b->ds->dst; +} + typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid, bool is_static, void *data); struct dsa_switch_ops { + /* + * Tagging protocol helpers called for the CPU ports and DSA links. + * @get_tag_protocol retrieves the initial tagging protocol and is + * mandatory. Switches which can operate using multiple tagging + * protocols should implement @change_tag_protocol and report in + * @get_tag_protocol the tagger in current use. + */ enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds, int port, enum dsa_tag_protocol mprot); + int (*change_tag_protocol)(struct dsa_switch *ds, + enum dsa_tag_protocol proto); + /* + * Method for switch drivers to connect to the tagging protocol driver + * in current use. The switch driver can provide handlers for certain + * types of packets for switch management. + */ + int (*connect_tag_protocol)(struct dsa_switch *ds, + enum dsa_tag_protocol proto); + + int (*port_change_conduit)(struct dsa_switch *ds, int port, + struct net_device *conduit, + struct netlink_ext_ack *extack); + /* Optional switch-wide initialization and destruction methods */ int (*setup)(struct dsa_switch *ds); void (*teardown)(struct dsa_switch *ds); + + /* Per-port initialization and destruction methods. Mandatory if the + * driver registers devlink port regions, optional otherwise. + */ + int (*port_setup)(struct dsa_switch *ds, int port); + void (*port_teardown)(struct dsa_switch *ds, int port); + u32 (*get_phy_flags)(struct dsa_switch *ds, int port); /* @@ -444,38 +881,14 @@ struct dsa_switch_ops { 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, - int speed, int duplex, - bool tx_pause, bool rx_pause); + void (*phylink_get_caps)(struct dsa_switch *ds, int port, + struct phylink_config *config); void (*phylink_fixed_state)(struct dsa_switch *ds, int port, struct phylink_link_state *state); /* - * ethtool hardware statistics. + * Port statistics counters. */ void (*get_strings)(struct dsa_switch *ds, int port, u32 stringset, uint8_t *data); @@ -484,6 +897,23 @@ struct dsa_switch_ops { 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); + void (*get_eth_phy_stats)(struct dsa_switch *ds, int port, + struct ethtool_eth_phy_stats *phy_stats); + void (*get_eth_mac_stats)(struct dsa_switch *ds, int port, + struct ethtool_eth_mac_stats *mac_stats); + void (*get_eth_ctrl_stats)(struct dsa_switch *ds, int port, + struct ethtool_eth_ctrl_stats *ctrl_stats); + void (*get_rmon_stats)(struct dsa_switch *ds, int port, + struct ethtool_rmon_stats *rmon_stats, + const struct ethtool_rmon_hist_range **ranges); + void (*get_ts_stats)(struct dsa_switch *ds, int port, + struct ethtool_ts_stats *ts_stats); + void (*get_stats64)(struct dsa_switch *ds, int port, + struct rtnl_link_stats64 *s); + void (*get_pause_stats)(struct dsa_switch *ds, int port, + struct ethtool_pause_stats *pause_stats); + void (*self_test)(struct dsa_switch *ds, int port, + struct ethtool_test *etest, u64 *data); /* * ethtool Wake-on-LAN @@ -497,7 +927,34 @@ struct dsa_switch_ops { * ethtool timestamp info */ int (*get_ts_info)(struct dsa_switch *ds, int port, - struct ethtool_ts_info *ts); + struct kernel_ethtool_ts_info *ts); + + /* + * ethtool MAC merge layer + */ + int (*get_mm)(struct dsa_switch *ds, int port, + struct ethtool_mm_state *state); + int (*set_mm)(struct dsa_switch *ds, int port, + struct ethtool_mm_cfg *cfg, + struct netlink_ext_ack *extack); + void (*get_mm_stats)(struct dsa_switch *ds, int port, + struct ethtool_mm_stats *stats); + + /* + * DCB ops + */ + int (*port_get_default_prio)(struct dsa_switch *ds, int port); + int (*port_set_default_prio)(struct dsa_switch *ds, int port, + u8 prio); + int (*port_get_dscp_prio)(struct dsa_switch *ds, int port, u8 dscp); + int (*port_add_dscp_prio)(struct dsa_switch *ds, int port, u8 dscp, + u8 prio); + int (*port_del_dscp_prio)(struct dsa_switch *ds, int port, u8 dscp, + u8 prio); + int (*port_set_apptrust)(struct dsa_switch *ds, int port, + const u8 *sel, int nsel); + int (*port_get_apptrust)(struct dsa_switch *ds, int port, u8 *sel, + int *nsel); /* * Suspend and resume @@ -512,13 +969,30 @@ struct dsa_switch_ops { struct phy_device *phy); void (*port_disable)(struct dsa_switch *ds, int port); + + /* + * Notification for MAC address changes on user ports. Drivers can + * currently only veto operations. They should not use the method to + * program the hardware, since the operation is not rolled back in case + * of other errors. + */ + int (*port_set_mac_address)(struct dsa_switch *ds, int port, + const unsigned char *addr); + + /* + * Compatibility between device trees defining multiple CPU ports and + * drivers which are not OK to use by default the numerically smallest + * CPU port of a switch for its local ports. This can return NULL, + * meaning "don't know/don't care". + */ + struct dsa_port *(*preferred_default_local_cpu_port)(struct dsa_switch *ds); + /* * Port's MAC EEE settings */ + bool (*support_eee)(struct dsa_switch *ds, int port); 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); + struct ethtool_keee *e); /* EEPROM access */ int (*get_eeprom_len)(struct dsa_switch *ds); @@ -535,50 +1009,77 @@ struct dsa_switch_ops { struct ethtool_regs *regs, void *p); /* + * Upper device tracking. + */ + int (*port_prechangeupper)(struct dsa_switch *ds, int port, + struct netdev_notifier_changeupper_info *info); + + /* * 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); + struct dsa_bridge bridge, + bool *tx_fwd_offload, + struct netlink_ext_ack *extack); void (*port_bridge_leave)(struct dsa_switch *ds, int port, - struct net_device *bridge); + struct dsa_bridge bridge); void (*port_stp_state_set)(struct dsa_switch *ds, int port, u8 state); + int (*port_mst_state_set)(struct dsa_switch *ds, int port, + const struct switchdev_mst_state *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); + int (*port_vlan_fast_age)(struct dsa_switch *ds, int port, u16 vid); + int (*port_pre_bridge_flags)(struct dsa_switch *ds, int port, + struct switchdev_brport_flags flags, + struct netlink_ext_ack *extack); + int (*port_bridge_flags)(struct dsa_switch *ds, int port, + struct switchdev_brport_flags flags, + struct netlink_ext_ack *extack); + void (*port_set_host_flood)(struct dsa_switch *ds, int port, + bool uc, bool mc); /* * VLAN support */ int (*port_vlan_filtering)(struct dsa_switch *ds, int port, bool vlan_filtering, - struct switchdev_trans *trans); - 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); + struct netlink_ext_ack *extack); + int (*port_vlan_add)(struct dsa_switch *ds, int port, + const struct switchdev_obj_port_vlan *vlan, + struct netlink_ext_ack *extack); int (*port_vlan_del)(struct dsa_switch *ds, int port, const struct switchdev_obj_port_vlan *vlan); + int (*vlan_msti_set)(struct dsa_switch *ds, struct dsa_bridge bridge, + const struct switchdev_vlan_msti *msti); + /* * Forwarding database */ int (*port_fdb_add)(struct dsa_switch *ds, int port, - const unsigned char *addr, u16 vid); + const unsigned char *addr, u16 vid, + struct dsa_db db); int (*port_fdb_del)(struct dsa_switch *ds, int port, - const unsigned char *addr, u16 vid); + const unsigned char *addr, u16 vid, + struct dsa_db db); int (*port_fdb_dump)(struct dsa_switch *ds, int port, dsa_fdb_dump_cb_t *cb, void *data); + int (*lag_fdb_add)(struct dsa_switch *ds, struct dsa_lag lag, + const unsigned char *addr, u16 vid, + struct dsa_db db); + int (*lag_fdb_del)(struct dsa_switch *ds, struct dsa_lag lag, + const unsigned char *addr, u16 vid, + struct dsa_db db); /* * 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_add)(struct dsa_switch *ds, int port, + const struct switchdev_obj_port_mdb *mdb, + struct dsa_db db); int (*port_mdb_del)(struct dsa_switch *ds, int port, - const struct switchdev_obj_port_mdb *mdb); + const struct switchdev_obj_port_mdb *mdb, + struct dsa_db db); /* * RXNFC */ @@ -598,7 +1099,7 @@ struct dsa_switch_ops { struct flow_cls_offload *cls, bool ingress); int (*port_mirror_add)(struct dsa_switch *ds, int port, struct dsa_mall_mirror_tc_entry *mirror, - bool ingress); + bool ingress, struct netlink_ext_ack *extack); void (*port_mirror_del)(struct dsa_switch *ds, int port, struct dsa_mall_mirror_tc_entry *mirror); int (*port_policer_add)(struct dsa_switch *ds, int port, @@ -612,20 +1113,30 @@ struct dsa_switch_ops { */ int (*crosschip_bridge_join)(struct dsa_switch *ds, int tree_index, int sw_index, int port, - struct net_device *br); + struct dsa_bridge bridge, + struct netlink_ext_ack *extack); void (*crosschip_bridge_leave)(struct dsa_switch *ds, int tree_index, int sw_index, int port, - struct net_device *br); + struct dsa_bridge bridge); + int (*crosschip_lag_change)(struct dsa_switch *ds, int sw_index, + int port); + int (*crosschip_lag_join)(struct dsa_switch *ds, int sw_index, + int port, struct dsa_lag lag, + struct netdev_lag_upper_info *info, + struct netlink_ext_ack *extack); + int (*crosschip_lag_leave)(struct dsa_switch *ds, int sw_index, + int port, struct dsa_lag lag); /* * PTP functionality */ int (*port_hwtstamp_get)(struct dsa_switch *ds, int port, - struct ifreq *ifr); + struct kernel_hwtstamp_config *config); 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); + struct kernel_hwtstamp_config *config, + struct netlink_ext_ack *extack); + void (*port_txtstamp)(struct dsa_switch *ds, int port, + struct sk_buff *skb); bool (*port_rxtstamp)(struct dsa_switch *ds, int port, struct sk_buff *skb, unsigned int type); @@ -637,6 +1148,40 @@ struct dsa_switch_ops { int (*devlink_info_get)(struct dsa_switch *ds, struct devlink_info_req *req, struct netlink_ext_ack *extack); + int (*devlink_sb_pool_get)(struct dsa_switch *ds, + unsigned int sb_index, u16 pool_index, + struct devlink_sb_pool_info *pool_info); + int (*devlink_sb_pool_set)(struct dsa_switch *ds, unsigned int sb_index, + u16 pool_index, u32 size, + enum devlink_sb_threshold_type threshold_type, + struct netlink_ext_ack *extack); + int (*devlink_sb_port_pool_get)(struct dsa_switch *ds, int port, + unsigned int sb_index, u16 pool_index, + u32 *p_threshold); + int (*devlink_sb_port_pool_set)(struct dsa_switch *ds, int port, + unsigned int sb_index, u16 pool_index, + u32 threshold, + struct netlink_ext_ack *extack); + int (*devlink_sb_tc_pool_bind_get)(struct dsa_switch *ds, int port, + unsigned int sb_index, u16 tc_index, + enum devlink_sb_pool_type pool_type, + u16 *p_pool_index, u32 *p_threshold); + int (*devlink_sb_tc_pool_bind_set)(struct dsa_switch *ds, int port, + unsigned int sb_index, u16 tc_index, + enum devlink_sb_pool_type pool_type, + u16 pool_index, u32 threshold, + struct netlink_ext_ack *extack); + int (*devlink_sb_occ_snapshot)(struct dsa_switch *ds, + unsigned int sb_index); + int (*devlink_sb_occ_max_clear)(struct dsa_switch *ds, + unsigned int sb_index); + int (*devlink_sb_occ_port_pool_get)(struct dsa_switch *ds, int port, + unsigned int sb_index, u16 pool_index, + u32 *p_cur, u32 *p_max); + int (*devlink_sb_occ_tc_port_bind_get)(struct dsa_switch *ds, int port, + unsigned int sb_index, u16 tc_index, + enum devlink_sb_pool_type pool_type, + u32 *p_cur, u32 *p_max); /* * MTU change functionality. Switches can also adjust their MRU through @@ -647,6 +1192,52 @@ struct dsa_switch_ops { int (*port_change_mtu)(struct dsa_switch *ds, int port, int new_mtu); int (*port_max_mtu)(struct dsa_switch *ds, int port); + + /* + * LAG integration + */ + int (*port_lag_change)(struct dsa_switch *ds, int port); + int (*port_lag_join)(struct dsa_switch *ds, int port, + struct dsa_lag lag, + struct netdev_lag_upper_info *info, + struct netlink_ext_ack *extack); + int (*port_lag_leave)(struct dsa_switch *ds, int port, + struct dsa_lag lag); + + /* + * HSR integration + */ + int (*port_hsr_join)(struct dsa_switch *ds, int port, + struct net_device *hsr, + struct netlink_ext_ack *extack); + int (*port_hsr_leave)(struct dsa_switch *ds, int port, + struct net_device *hsr); + + /* + * MRP integration + */ + int (*port_mrp_add)(struct dsa_switch *ds, int port, + const struct switchdev_obj_mrp *mrp); + int (*port_mrp_del)(struct dsa_switch *ds, int port, + const struct switchdev_obj_mrp *mrp); + int (*port_mrp_add_ring_role)(struct dsa_switch *ds, int port, + const struct switchdev_obj_ring_role_mrp *mrp); + int (*port_mrp_del_ring_role)(struct dsa_switch *ds, int port, + const struct switchdev_obj_ring_role_mrp *mrp); + + /* + * tag_8021q operations + */ + int (*tag_8021q_vlan_add)(struct dsa_switch *ds, int port, u16 vid, + u16 flags); + int (*tag_8021q_vlan_del)(struct dsa_switch *ds, int port, u16 vid); + + /* + * DSA conduit tracking operations + */ + void (*conduit_state_change)(struct dsa_switch *ds, + const struct net_device *conduit, + bool operational); }; #define DSA_DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes) \ @@ -656,7 +1247,8 @@ struct dsa_switch_ops { int dsa_devlink_param_get(struct devlink *dl, u32 id, struct devlink_param_gset_ctx *ctx); int dsa_devlink_param_set(struct devlink *dl, u32 id, - struct devlink_param_gset_ctx *ctx); + struct devlink_param_gset_ctx *ctx, + struct netlink_ext_ack *extack); int dsa_devlink_params_register(struct dsa_switch *ds, const struct devlink_param *params, size_t params_count); @@ -721,7 +1313,12 @@ struct dsa_switch_driver { const struct dsa_switch_ops *ops; }; -struct net_device *dsa_dev_to_net_device(struct device *dev); +bool dsa_fdb_present_in_other_db(struct dsa_switch *ds, int port, + const unsigned char *addr, u16 vid, + struct dsa_db db); +bool dsa_mdb_present_in_other_db(struct dsa_switch *ds, int port, + const struct switchdev_obj_port_mdb *mdb, + struct dsa_db db); /* Keep inline for faster access in hot path */ static inline bool netdev_uses_dsa(const struct net_device *dev) @@ -732,15 +1329,6 @@ static inline bool netdev_uses_dsa(const struct net_device *dev) 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; -} - /* All DSA tags that push the EtherType to the right (basically all except tail * tags, which don't break dissection) can be treated the same from the * perspective of the flow dissector. @@ -760,52 +1348,18 @@ static inline void dsa_tag_generic_flow_dissect(const struct sk_buff *skb, { #if IS_ENABLED(CONFIG_NET_DSA) const struct dsa_device_ops *ops = skb->dev->dsa_ptr->tag_ops; - int tag_len = ops->overhead; + int tag_len = ops->needed_headroom; *offset = tag_len; *proto = ((__be16 *)skb->data)[(tag_len / 2) - 1]; #endif } -#if IS_ENABLED(CONFIG_NET_DSA) -static inline int __dsa_netdevice_ops_check(struct net_device *dev) -{ - int err = -EOPNOTSUPP; - - if (!dev->dsa_ptr) - return err; - - if (!dev->dsa_ptr->netdev_ops) - return err; - - return 0; -} - -static inline int dsa_ndo_do_ioctl(struct net_device *dev, struct ifreq *ifr, - int cmd) -{ - const struct dsa_netdevice_ops *ops; - int err; - - err = __dsa_netdevice_ops_check(dev); - if (err) - return err; - - ops = dev->dsa_ptr->netdev_ops; - - return ops->ndo_do_ioctl(dev, ifr, cmd); -} -#else -static inline int dsa_ndo_do_ioctl(struct net_device *dev, struct ifreq *ifr, - int cmd) -{ - return -EOPNOTSUPP; -} -#endif - void dsa_unregister_switch(struct dsa_switch *ds); int dsa_register_switch(struct dsa_switch *ds); +void dsa_switch_shutdown(struct dsa_switch *ds); struct dsa_switch *dsa_switch_find(int tree_index, int sw_index); +void dsa_flush_workqueue(void); #ifdef CONFIG_PM_SLEEP int dsa_switch_suspend(struct dsa_switch *ds); int dsa_switch_resume(struct dsa_switch *ds); @@ -820,127 +1374,17 @@ static inline int dsa_switch_resume(struct dsa_switch *ds) } #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); +bool dsa_user_dev_check(const struct net_device *dev); #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) +static inline bool dsa_user_dev_check(const struct net_device *dev) { - return NOTIFY_DONE; + return false; } #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); +bool dsa_supports_eee(struct dsa_switch *ds, int port); -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 - |