diff options
Diffstat (limited to 'drivers/net/ethernet/microchip/lan966x/lan966x_main.h')
| -rw-r--r-- | drivers/net/ethernet/microchip/lan966x/lan966x_main.h | 577 |
1 files changed, 577 insertions, 0 deletions
diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_main.h b/drivers/net/ethernet/microchip/lan966x/lan966x_main.h new file mode 100644 index 000000000000..4ec33999e4df --- /dev/null +++ b/drivers/net/ethernet/microchip/lan966x/lan966x_main.h @@ -0,0 +1,577 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ + +#ifndef __LAN966X_MAIN_H__ +#define __LAN966X_MAIN_H__ + +#include <linux/etherdevice.h> +#include <linux/if_vlan.h> +#include <linux/jiffies.h> +#include <linux/phy.h> +#include <linux/phylink.h> +#include <linux/ptp_clock_kernel.h> +#include <net/pkt_cls.h> +#include <net/pkt_sched.h> +#include <net/switchdev.h> + +#include "lan966x_regs.h" +#include "lan966x_ifh.h" + +#define TABLE_UPDATE_SLEEP_US 10 +#define TABLE_UPDATE_TIMEOUT_US 100000 + +#define READL_SLEEP_US 10 +#define READL_TIMEOUT_US 100000000 + +#define LAN966X_BUFFER_CELL_SZ 64 +#define LAN966X_BUFFER_MEMORY (160 * 1024) +#define LAN966X_BUFFER_MIN_SZ 60 + +#define LAN966X_HW_MTU(mtu) ((mtu) + ETH_HLEN + ETH_FCS_LEN) + +#define PGID_AGGR 64 +#define PGID_SRC 80 +#define PGID_ENTRIES 89 + +#define UNAWARE_PVID 0 +#define HOST_PVID 4095 + +/* Reserved amount for (SRC, PRIO) at index 8*SRC + PRIO */ +#define QSYS_Q_RSRV 95 + +#define NUM_PHYS_PORTS 8 +#define CPU_PORT 8 +#define NUM_PRIO_QUEUES 8 + +/* Reserved PGIDs */ +#define PGID_CPU (PGID_AGGR - 6) +#define PGID_UC (PGID_AGGR - 5) +#define PGID_BC (PGID_AGGR - 4) +#define PGID_MC (PGID_AGGR - 3) +#define PGID_MCIPV4 (PGID_AGGR - 2) +#define PGID_MCIPV6 (PGID_AGGR - 1) + +/* Non-reserved PGIDs, used for general purpose */ +#define PGID_GP_START (CPU_PORT + 1) +#define PGID_GP_END PGID_CPU + +#define LAN966X_SPEED_NONE 0 +#define LAN966X_SPEED_2500 1 +#define LAN966X_SPEED_1000 1 +#define LAN966X_SPEED_100 2 +#define LAN966X_SPEED_10 3 + +#define LAN966X_PHC_COUNT 3 +#define LAN966X_PHC_PORT 0 +#define LAN966X_PHC_PINS_NUM 7 + +#define IFH_REW_OP_NOOP 0x0 +#define IFH_REW_OP_ONE_STEP_PTP 0x3 +#define IFH_REW_OP_TWO_STEP_PTP 0x4 + +#define FDMA_RX_DCB_MAX_DBS 1 +#define FDMA_TX_DCB_MAX_DBS 1 +#define FDMA_DCB_INFO_DATAL(x) ((x) & GENMASK(15, 0)) + +#define FDMA_DCB_STATUS_BLOCKL(x) ((x) & GENMASK(15, 0)) +#define FDMA_DCB_STATUS_SOF BIT(16) +#define FDMA_DCB_STATUS_EOF BIT(17) +#define FDMA_DCB_STATUS_INTR BIT(18) +#define FDMA_DCB_STATUS_DONE BIT(19) +#define FDMA_DCB_STATUS_BLOCKO(x) (((x) << 20) & GENMASK(31, 20)) +#define FDMA_DCB_INVALID_DATA 0x1 + +#define FDMA_XTR_CHANNEL 6 +#define FDMA_INJ_CHANNEL 0 +#define FDMA_DCB_MAX 512 + +#define SE_IDX_QUEUE 0 /* 0-79 : Queue scheduler elements */ +#define SE_IDX_PORT 80 /* 80-89 : Port schedular elements */ + +/* MAC table entry types. + * ENTRYTYPE_NORMAL is subject to aging. + * ENTRYTYPE_LOCKED is not subject to aging. + * ENTRYTYPE_MACv4 is not subject to aging. For IPv4 multicast. + * ENTRYTYPE_MACv6 is not subject to aging. For IPv6 multicast. + */ +enum macaccess_entry_type { + ENTRYTYPE_NORMAL = 0, + ENTRYTYPE_LOCKED, + ENTRYTYPE_MACV4, + ENTRYTYPE_MACV6, +}; + +struct lan966x_port; + +struct lan966x_db { + u64 dataptr; + u64 status; +}; + +struct lan966x_rx_dcb { + u64 nextptr; + u64 info; + struct lan966x_db db[FDMA_RX_DCB_MAX_DBS]; +}; + +struct lan966x_tx_dcb { + u64 nextptr; + u64 info; + struct lan966x_db db[FDMA_TX_DCB_MAX_DBS]; +}; + +struct lan966x_rx { + struct lan966x *lan966x; + + /* Pointer to the array of hardware dcbs. */ + struct lan966x_rx_dcb *dcbs; + + /* Pointer to the last address in the dcbs. */ + struct lan966x_rx_dcb *last_entry; + + /* For each DB, there is a page */ + struct page *page[FDMA_DCB_MAX][FDMA_RX_DCB_MAX_DBS]; + + /* Represents the db_index, it can have a value between 0 and + * FDMA_RX_DCB_MAX_DBS, once it reaches the value of FDMA_RX_DCB_MAX_DBS + * it means that the DCB can be reused. + */ + int db_index; + + /* Represents the index in the dcbs. It has a value between 0 and + * FDMA_DCB_MAX + */ + int dcb_index; + + /* Represents the dma address to the dcbs array */ + dma_addr_t dma; + + /* Represents the page order that is used to allocate the pages for the + * RX buffers. This value is calculated based on max MTU of the devices. + */ + u8 page_order; + + u8 channel_id; +}; + +struct lan966x_tx_dcb_buf { + struct net_device *dev; + struct sk_buff *skb; + dma_addr_t dma_addr; + bool used; + bool ptp; +}; + +struct lan966x_tx { + struct lan966x *lan966x; + + /* Pointer to the dcb list */ + struct lan966x_tx_dcb *dcbs; + u16 last_in_use; + + /* Represents the DMA address to the first entry of the dcb entries. */ + dma_addr_t dma; + + /* Array of dcbs that are given to the HW */ + struct lan966x_tx_dcb_buf *dcbs_buf; + + u8 channel_id; + + bool activated; +}; + +struct lan966x_stat_layout { + u32 offset; + char name[ETH_GSTRING_LEN]; +}; + +struct lan966x_phc { + struct ptp_clock *clock; + struct ptp_clock_info info; + struct ptp_pin_desc pins[LAN966X_PHC_PINS_NUM]; + struct hwtstamp_config hwtstamp_config; + struct lan966x *lan966x; + u8 index; +}; + +struct lan966x_skb_cb { + u8 rew_op; + u16 ts_id; + unsigned long jiffies; +}; + +#define LAN966X_PTP_TIMEOUT msecs_to_jiffies(10) +#define LAN966X_SKB_CB(skb) \ + ((struct lan966x_skb_cb *)((skb)->cb)) + +struct lan966x { + struct device *dev; + + u8 num_phys_ports; + struct lan966x_port **ports; + + void __iomem *regs[NUM_TARGETS]; + + int shared_queue_sz; + + u8 base_mac[ETH_ALEN]; + + spinlock_t tx_lock; /* lock for frame transmition */ + + struct net_device *bridge; + u16 bridge_mask; + u16 bridge_fwd_mask; + + struct list_head mac_entries; + spinlock_t mac_lock; /* lock for mac_entries list */ + + u16 vlan_mask[VLAN_N_VID]; + DECLARE_BITMAP(cpu_vlan_mask, VLAN_N_VID); + + /* stats */ + const struct lan966x_stat_layout *stats_layout; + u32 num_stats; + + /* workqueue for reading stats */ + struct mutex stats_lock; + u64 *stats; + struct delayed_work stats_work; + struct workqueue_struct *stats_queue; + + /* interrupts */ + int xtr_irq; + int ana_irq; + int ptp_irq; + int fdma_irq; + int ptp_ext_irq; + + /* worqueue for fdb */ + struct workqueue_struct *fdb_work; + struct list_head fdb_entries; + + /* mdb */ + struct list_head mdb_entries; + struct list_head pgid_entries; + + /* ptp */ + bool ptp; + struct lan966x_phc phc[LAN966X_PHC_COUNT]; + spinlock_t ptp_clock_lock; /* lock for phc */ + spinlock_t ptp_ts_id_lock; /* lock for ts_id */ + struct mutex ptp_lock; /* lock for ptp interface state */ + u16 ptp_skbs; + + /* fdma */ + bool fdma; + struct net_device *fdma_ndev; + struct lan966x_rx rx; + struct lan966x_tx tx; + struct napi_struct napi; + + /* Mirror */ + struct lan966x_port *mirror_monitor; + u32 mirror_mask[2]; + u32 mirror_count; +}; + +struct lan966x_port_config { + phy_interface_t portmode; + const unsigned long *advertising; + int speed; + int duplex; + u32 pause; + bool inband; + bool autoneg; +}; + +struct lan966x_port_tc { + bool ingress_shared_block; + unsigned long police_id; + unsigned long ingress_mirror_id; + unsigned long egress_mirror_id; + struct flow_stats police_stat; + struct flow_stats mirror_stat; +}; + +struct lan966x_port { + struct net_device *dev; + struct lan966x *lan966x; + + u8 chip_port; + u16 pvid; + u16 vid; + bool vlan_aware; + + bool learn_ena; + bool mcast_ena; + + struct phylink_config phylink_config; + struct phylink_pcs phylink_pcs; + struct lan966x_port_config config; + struct phylink *phylink; + struct phy *serdes; + struct fwnode_handle *fwnode; + + u8 ptp_cmd; + u16 ts_id; + struct sk_buff_head tx_skbs; + + struct net_device *bond; + bool lag_tx_active; + enum netdev_lag_hash hash_type; + + struct lan966x_port_tc tc; +}; + +extern const struct phylink_mac_ops lan966x_phylink_mac_ops; +extern const struct phylink_pcs_ops lan966x_phylink_pcs_ops; +extern const struct ethtool_ops lan966x_ethtool_ops; +extern struct notifier_block lan966x_switchdev_nb __read_mostly; +extern struct notifier_block lan966x_switchdev_blocking_nb __read_mostly; + +bool lan966x_netdevice_check(const struct net_device *dev); + +void lan966x_register_notifier_blocks(void); +void lan966x_unregister_notifier_blocks(void); + +bool lan966x_hw_offload(struct lan966x *lan966x, u32 port, struct sk_buff *skb); + +void lan966x_ifh_get_src_port(void *ifh, u64 *src_port); +void lan966x_ifh_get_timestamp(void *ifh, u64 *timestamp); + +void lan966x_stats_get(struct net_device *dev, + struct rtnl_link_stats64 *stats); +int lan966x_stats_init(struct lan966x *lan966x); + +void lan966x_port_config_down(struct lan966x_port *port); +void lan966x_port_config_up(struct lan966x_port *port); +void lan966x_port_status_get(struct lan966x_port *port, + struct phylink_link_state *state); +int lan966x_port_pcs_set(struct lan966x_port *port, + struct lan966x_port_config *config); +void lan966x_port_init(struct lan966x_port *port); + +int lan966x_mac_ip_learn(struct lan966x *lan966x, + bool cpu_copy, + const unsigned char mac[ETH_ALEN], + unsigned int vid, + enum macaccess_entry_type type); +int lan966x_mac_learn(struct lan966x *lan966x, int port, + const unsigned char mac[ETH_ALEN], + unsigned int vid, + enum macaccess_entry_type type); +int lan966x_mac_forget(struct lan966x *lan966x, + const unsigned char mac[ETH_ALEN], + unsigned int vid, + enum macaccess_entry_type type); +int lan966x_mac_cpu_learn(struct lan966x *lan966x, const char *addr, u16 vid); +int lan966x_mac_cpu_forget(struct lan966x *lan966x, const char *addr, u16 vid); +void lan966x_mac_init(struct lan966x *lan966x); +void lan966x_mac_set_ageing(struct lan966x *lan966x, + u32 ageing); +int lan966x_mac_del_entry(struct lan966x *lan966x, + const unsigned char *addr, + u16 vid); +int lan966x_mac_add_entry(struct lan966x *lan966x, + struct lan966x_port *port, + const unsigned char *addr, + u16 vid); +void lan966x_mac_lag_replace_port_entry(struct lan966x *lan966x, + struct lan966x_port *src, + struct lan966x_port *dst); +void lan966x_mac_lag_remove_port_entry(struct lan966x *lan966x, + struct lan966x_port *src); +void lan966x_mac_purge_entries(struct lan966x *lan966x); +irqreturn_t lan966x_mac_irq_handler(struct lan966x *lan966x); + +void lan966x_vlan_init(struct lan966x *lan966x); +void lan966x_vlan_port_apply(struct lan966x_port *port); +bool lan966x_vlan_cpu_member_cpu_vlan_mask(struct lan966x *lan966x, u16 vid); +void lan966x_vlan_port_set_vlan_aware(struct lan966x_port *port, + bool vlan_aware); +int lan966x_vlan_port_set_vid(struct lan966x_port *port, + u16 vid, + bool pvid, + bool untagged); +void lan966x_vlan_port_add_vlan(struct lan966x_port *port, + u16 vid, + bool pvid, + bool untagged); +void lan966x_vlan_port_del_vlan(struct lan966x_port *port, u16 vid); +void lan966x_vlan_cpu_add_vlan(struct lan966x *lan966x, u16 vid); +void lan966x_vlan_cpu_del_vlan(struct lan966x *lan966x, u16 vid); + +void lan966x_fdb_write_entries(struct lan966x *lan966x, u16 vid); +void lan966x_fdb_erase_entries(struct lan966x *lan966x, u16 vid); +int lan966x_fdb_init(struct lan966x *lan966x); +void lan966x_fdb_deinit(struct lan966x *lan966x); +void lan966x_fdb_flush_workqueue(struct lan966x *lan966x); +int lan966x_handle_fdb(struct net_device *dev, + struct net_device *orig_dev, + unsigned long event, const void *ctx, + const struct switchdev_notifier_fdb_info *fdb_info); + +void lan966x_mdb_init(struct lan966x *lan966x); +void lan966x_mdb_deinit(struct lan966x *lan966x); +int lan966x_handle_port_mdb_add(struct lan966x_port *port, + const struct switchdev_obj *obj); +int lan966x_handle_port_mdb_del(struct lan966x_port *port, + const struct switchdev_obj *obj); +void lan966x_mdb_erase_entries(struct lan966x *lan966x, u16 vid); +void lan966x_mdb_write_entries(struct lan966x *lan966x, u16 vid); +void lan966x_mdb_clear_entries(struct lan966x *lan966x); +void lan966x_mdb_restore_entries(struct lan966x *lan966x); + +int lan966x_ptp_init(struct lan966x *lan966x); +void lan966x_ptp_deinit(struct lan966x *lan966x); +int lan966x_ptp_hwtstamp_set(struct lan966x_port *port, struct ifreq *ifr); +int lan966x_ptp_hwtstamp_get(struct lan966x_port *port, struct ifreq *ifr); +void lan966x_ptp_rxtstamp(struct lan966x *lan966x, struct sk_buff *skb, + u64 timestamp); +int lan966x_ptp_txtstamp_request(struct lan966x_port *port, + struct sk_buff *skb); +void lan966x_ptp_txtstamp_release(struct lan966x_port *port, + struct sk_buff *skb); +irqreturn_t lan966x_ptp_irq_handler(int irq, void *args); +irqreturn_t lan966x_ptp_ext_irq_handler(int irq, void *args); +u32 lan966x_ptp_get_period_ps(void); +int lan966x_ptp_gettime64(struct ptp_clock_info *ptp, struct timespec64 *ts); + +int lan966x_fdma_xmit(struct sk_buff *skb, __be32 *ifh, struct net_device *dev); +int lan966x_fdma_change_mtu(struct lan966x *lan966x); +void lan966x_fdma_netdev_init(struct lan966x *lan966x, struct net_device *dev); +void lan966x_fdma_netdev_deinit(struct lan966x *lan966x, struct net_device *dev); +int lan966x_fdma_init(struct lan966x *lan966x); +void lan966x_fdma_deinit(struct lan966x *lan966x); +irqreturn_t lan966x_fdma_irq_handler(int irq, void *args); + +int lan966x_lag_port_join(struct lan966x_port *port, + struct net_device *brport_dev, + struct net_device *bond, + struct netlink_ext_ack *extack); +void lan966x_lag_port_leave(struct lan966x_port *port, struct net_device *bond); +int lan966x_lag_port_prechangeupper(struct net_device *dev, + struct netdev_notifier_changeupper_info *info); +int lan966x_lag_port_changelowerstate(struct net_device *dev, + struct netdev_notifier_changelowerstate_info *info); +int lan966x_lag_netdev_prechangeupper(struct net_device *dev, + struct netdev_notifier_changeupper_info *info); +int lan966x_lag_netdev_changeupper(struct net_device *dev, + struct netdev_notifier_changeupper_info *info); +bool lan966x_lag_first_port(struct net_device *lag, struct net_device *dev); +u32 lan966x_lag_get_mask(struct lan966x *lan966x, struct net_device *bond); + +int lan966x_port_changeupper(struct net_device *dev, + struct net_device *brport_dev, + struct netdev_notifier_changeupper_info *info); +int lan966x_port_prechangeupper(struct net_device *dev, + struct net_device *brport_dev, + struct netdev_notifier_changeupper_info *info); +void lan966x_port_stp_state_set(struct lan966x_port *port, u8 state); +void lan966x_port_ageing_set(struct lan966x_port *port, + unsigned long ageing_clock_t); +void lan966x_update_fwd_mask(struct lan966x *lan966x); + +int lan966x_tc_setup(struct net_device *dev, enum tc_setup_type type, + void *type_data); + +int lan966x_mqprio_add(struct lan966x_port *port, u8 num_tc); +int lan966x_mqprio_del(struct lan966x_port *port); + +void lan966x_taprio_init(struct lan966x *lan966x); +void lan966x_taprio_deinit(struct lan966x *lan966x); +int lan966x_taprio_add(struct lan966x_port *port, + struct tc_taprio_qopt_offload *qopt); +int lan966x_taprio_del(struct lan966x_port *port); +int lan966x_taprio_speed_set(struct lan966x_port *port, int speed); + +int lan966x_tbf_add(struct lan966x_port *port, + struct tc_tbf_qopt_offload *qopt); +int lan966x_tbf_del(struct lan966x_port *port, + struct tc_tbf_qopt_offload *qopt); + +int lan966x_cbs_add(struct lan966x_port *port, + struct tc_cbs_qopt_offload *qopt); +int lan966x_cbs_del(struct lan966x_port *port, + struct tc_cbs_qopt_offload *qopt); + +int lan966x_ets_add(struct lan966x_port *port, + struct tc_ets_qopt_offload *qopt); +int lan966x_ets_del(struct lan966x_port *port, + struct tc_ets_qopt_offload *qopt); + +int lan966x_tc_matchall(struct lan966x_port *port, + struct tc_cls_matchall_offload *f, + bool ingress); + +int lan966x_police_port_add(struct lan966x_port *port, + struct flow_action *action, + struct flow_action_entry *act, + unsigned long police_id, + bool ingress, + struct netlink_ext_ack *extack); +int lan966x_police_port_del(struct lan966x_port *port, + unsigned long police_id, + struct netlink_ext_ack *extack); +void lan966x_police_port_stats(struct lan966x_port *port, + struct flow_stats *stats); + +int lan966x_mirror_port_add(struct lan966x_port *port, + struct flow_action_entry *action, + unsigned long mirror_id, + bool ingress, + struct netlink_ext_ack *extack); +int lan966x_mirror_port_del(struct lan966x_port *port, + bool ingress, + struct netlink_ext_ack *extack); +void lan966x_mirror_port_stats(struct lan966x_port *port, + struct flow_stats *stats, + bool ingress); + +static inline void __iomem *lan_addr(void __iomem *base[], + int id, int tinst, int tcnt, + int gbase, int ginst, + int gcnt, int gwidth, + int raddr, int rinst, + int rcnt, int rwidth) +{ + WARN_ON((tinst) >= tcnt); + WARN_ON((ginst) >= gcnt); + WARN_ON((rinst) >= rcnt); + return base[id + (tinst)] + + gbase + ((ginst) * gwidth) + + raddr + ((rinst) * rwidth); +} + +static inline u32 lan_rd(struct lan966x *lan966x, int id, int tinst, int tcnt, + int gbase, int ginst, int gcnt, int gwidth, + int raddr, int rinst, int rcnt, int rwidth) +{ + return readl(lan_addr(lan966x->regs, id, tinst, tcnt, gbase, ginst, + gcnt, gwidth, raddr, rinst, rcnt, rwidth)); +} + +static inline void lan_wr(u32 val, struct lan966x *lan966x, + int id, int tinst, int tcnt, + int gbase, int ginst, int gcnt, int gwidth, + int raddr, int rinst, int rcnt, int rwidth) +{ + writel(val, lan_addr(lan966x->regs, id, tinst, tcnt, + gbase, ginst, gcnt, gwidth, + raddr, rinst, rcnt, rwidth)); +} + +static inline void lan_rmw(u32 val, u32 mask, struct lan966x *lan966x, + int id, int tinst, int tcnt, + int gbase, int ginst, int gcnt, int gwidth, + int raddr, int rinst, int rcnt, int rwidth) +{ + u32 nval; + + nval = readl(lan_addr(lan966x->regs, id, tinst, tcnt, gbase, ginst, + gcnt, gwidth, raddr, rinst, rcnt, rwidth)); + nval = (nval & ~mask) | (val & mask); + writel(nval, lan_addr(lan966x->regs, id, tinst, tcnt, gbase, ginst, + gcnt, gwidth, raddr, rinst, rcnt, rwidth)); +} + +#endif /* __LAN966X_MAIN_H__ */ |