336 lines
9.5 KiB
C
336 lines
9.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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#ifndef __LAN966X_MAIN_H__
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#define __LAN966X_MAIN_H__
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#include <linux/etherdevice.h>
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#include <linux/if_vlan.h>
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#include <linux/jiffies.h>
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#include <linux/phy.h>
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#include <linux/phylink.h>
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#include <linux/ptp_clock_kernel.h>
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#include <net/switchdev.h>
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#include "lan966x_regs.h"
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#include "lan966x_ifh.h"
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#define TABLE_UPDATE_SLEEP_US 10
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#define TABLE_UPDATE_TIMEOUT_US 100000
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#define LAN966X_BUFFER_CELL_SZ 64
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#define LAN966X_BUFFER_MEMORY (160 * 1024)
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#define LAN966X_BUFFER_MIN_SZ 60
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#define PGID_AGGR 64
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#define PGID_SRC 80
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#define PGID_ENTRIES 89
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#define UNAWARE_PVID 0
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#define HOST_PVID 4095
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/* Reserved amount for (SRC, PRIO) at index 8*SRC + PRIO */
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#define QSYS_Q_RSRV 95
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#define NUM_PHYS_PORTS 8
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#define CPU_PORT 8
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/* Reserved PGIDs */
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#define PGID_CPU (PGID_AGGR - 6)
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#define PGID_UC (PGID_AGGR - 5)
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#define PGID_BC (PGID_AGGR - 4)
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#define PGID_MC (PGID_AGGR - 3)
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#define PGID_MCIPV4 (PGID_AGGR - 2)
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#define PGID_MCIPV6 (PGID_AGGR - 1)
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/* Non-reserved PGIDs, used for general purpose */
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#define PGID_GP_START (CPU_PORT + 1)
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#define PGID_GP_END PGID_CPU
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#define LAN966X_SPEED_NONE 0
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#define LAN966X_SPEED_2500 1
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#define LAN966X_SPEED_1000 1
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#define LAN966X_SPEED_100 2
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#define LAN966X_SPEED_10 3
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#define LAN966X_PHC_COUNT 3
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#define LAN966X_PHC_PORT 0
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#define IFH_REW_OP_NOOP 0x0
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#define IFH_REW_OP_ONE_STEP_PTP 0x3
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#define IFH_REW_OP_TWO_STEP_PTP 0x4
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/* MAC table entry types.
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* ENTRYTYPE_NORMAL is subject to aging.
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* ENTRYTYPE_LOCKED is not subject to aging.
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* ENTRYTYPE_MACv4 is not subject to aging. For IPv4 multicast.
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* ENTRYTYPE_MACv6 is not subject to aging. For IPv6 multicast.
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*/
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enum macaccess_entry_type {
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ENTRYTYPE_NORMAL = 0,
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ENTRYTYPE_LOCKED,
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ENTRYTYPE_MACV4,
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ENTRYTYPE_MACV6,
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};
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struct lan966x_port;
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struct lan966x_stat_layout {
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u32 offset;
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char name[ETH_GSTRING_LEN];
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};
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struct lan966x_phc {
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struct ptp_clock *clock;
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struct ptp_clock_info info;
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struct hwtstamp_config hwtstamp_config;
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struct lan966x *lan966x;
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u8 index;
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};
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struct lan966x_skb_cb {
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u8 rew_op;
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u16 ts_id;
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unsigned long jiffies;
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};
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#define LAN966X_PTP_TIMEOUT msecs_to_jiffies(10)
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#define LAN966X_SKB_CB(skb) \
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((struct lan966x_skb_cb *)((skb)->cb))
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struct lan966x {
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struct device *dev;
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u8 num_phys_ports;
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struct lan966x_port **ports;
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void __iomem *regs[NUM_TARGETS];
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int shared_queue_sz;
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u8 base_mac[ETH_ALEN];
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spinlock_t tx_lock; /* lock for frame transmition */
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struct net_device *bridge;
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u16 bridge_mask;
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u16 bridge_fwd_mask;
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struct list_head mac_entries;
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spinlock_t mac_lock; /* lock for mac_entries list */
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u16 vlan_mask[VLAN_N_VID];
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DECLARE_BITMAP(cpu_vlan_mask, VLAN_N_VID);
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/* stats */
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const struct lan966x_stat_layout *stats_layout;
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u32 num_stats;
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/* workqueue for reading stats */
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struct mutex stats_lock;
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u64 *stats;
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struct delayed_work stats_work;
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struct workqueue_struct *stats_queue;
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/* interrupts */
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int xtr_irq;
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int ana_irq;
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int ptp_irq;
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/* worqueue for fdb */
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struct workqueue_struct *fdb_work;
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struct list_head fdb_entries;
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/* mdb */
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struct list_head mdb_entries;
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struct list_head pgid_entries;
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/* ptp */
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bool ptp;
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struct lan966x_phc phc[LAN966X_PHC_COUNT];
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spinlock_t ptp_clock_lock; /* lock for phc */
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spinlock_t ptp_ts_id_lock; /* lock for ts_id */
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struct mutex ptp_lock; /* lock for ptp interface state */
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u16 ptp_skbs;
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};
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struct lan966x_port_config {
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phy_interface_t portmode;
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const unsigned long *advertising;
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int speed;
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int duplex;
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u32 pause;
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bool inband;
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bool autoneg;
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};
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struct lan966x_port {
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struct net_device *dev;
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struct lan966x *lan966x;
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u8 chip_port;
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u16 pvid;
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u16 vid;
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bool vlan_aware;
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bool learn_ena;
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bool mcast_ena;
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struct phylink_config phylink_config;
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struct phylink_pcs phylink_pcs;
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struct lan966x_port_config config;
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struct phylink *phylink;
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struct phy *serdes;
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struct fwnode_handle *fwnode;
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u8 ptp_cmd;
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u16 ts_id;
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struct sk_buff_head tx_skbs;
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};
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extern const struct phylink_mac_ops lan966x_phylink_mac_ops;
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extern const struct phylink_pcs_ops lan966x_phylink_pcs_ops;
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extern const struct ethtool_ops lan966x_ethtool_ops;
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bool lan966x_netdevice_check(const struct net_device *dev);
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void lan966x_register_notifier_blocks(void);
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void lan966x_unregister_notifier_blocks(void);
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void lan966x_stats_get(struct net_device *dev,
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struct rtnl_link_stats64 *stats);
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int lan966x_stats_init(struct lan966x *lan966x);
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void lan966x_port_config_down(struct lan966x_port *port);
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void lan966x_port_config_up(struct lan966x_port *port);
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void lan966x_port_status_get(struct lan966x_port *port,
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struct phylink_link_state *state);
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int lan966x_port_pcs_set(struct lan966x_port *port,
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struct lan966x_port_config *config);
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void lan966x_port_init(struct lan966x_port *port);
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int lan966x_mac_ip_learn(struct lan966x *lan966x,
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bool cpu_copy,
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const unsigned char mac[ETH_ALEN],
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unsigned int vid,
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enum macaccess_entry_type type);
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int lan966x_mac_learn(struct lan966x *lan966x, int port,
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const unsigned char mac[ETH_ALEN],
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unsigned int vid,
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enum macaccess_entry_type type);
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int lan966x_mac_forget(struct lan966x *lan966x,
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const unsigned char mac[ETH_ALEN],
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unsigned int vid,
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enum macaccess_entry_type type);
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int lan966x_mac_cpu_learn(struct lan966x *lan966x, const char *addr, u16 vid);
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int lan966x_mac_cpu_forget(struct lan966x *lan966x, const char *addr, u16 vid);
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void lan966x_mac_init(struct lan966x *lan966x);
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void lan966x_mac_set_ageing(struct lan966x *lan966x,
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u32 ageing);
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int lan966x_mac_del_entry(struct lan966x *lan966x,
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const unsigned char *addr,
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u16 vid);
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int lan966x_mac_add_entry(struct lan966x *lan966x,
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struct lan966x_port *port,
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const unsigned char *addr,
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u16 vid);
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void lan966x_mac_purge_entries(struct lan966x *lan966x);
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irqreturn_t lan966x_mac_irq_handler(struct lan966x *lan966x);
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void lan966x_vlan_init(struct lan966x *lan966x);
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void lan966x_vlan_port_apply(struct lan966x_port *port);
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bool lan966x_vlan_cpu_member_cpu_vlan_mask(struct lan966x *lan966x, u16 vid);
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void lan966x_vlan_port_set_vlan_aware(struct lan966x_port *port,
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bool vlan_aware);
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int lan966x_vlan_port_set_vid(struct lan966x_port *port,
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u16 vid,
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bool pvid,
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bool untagged);
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void lan966x_vlan_port_add_vlan(struct lan966x_port *port,
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u16 vid,
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bool pvid,
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bool untagged);
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void lan966x_vlan_port_del_vlan(struct lan966x_port *port, u16 vid);
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void lan966x_vlan_cpu_add_vlan(struct lan966x *lan966x, u16 vid);
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void lan966x_vlan_cpu_del_vlan(struct lan966x *lan966x, u16 vid);
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void lan966x_fdb_write_entries(struct lan966x *lan966x, u16 vid);
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void lan966x_fdb_erase_entries(struct lan966x *lan966x, u16 vid);
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int lan966x_fdb_init(struct lan966x *lan966x);
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void lan966x_fdb_deinit(struct lan966x *lan966x);
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int lan966x_handle_fdb(struct net_device *dev,
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struct net_device *orig_dev,
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unsigned long event, const void *ctx,
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const struct switchdev_notifier_fdb_info *fdb_info);
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void lan966x_mdb_init(struct lan966x *lan966x);
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void lan966x_mdb_deinit(struct lan966x *lan966x);
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int lan966x_handle_port_mdb_add(struct lan966x_port *port,
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const struct switchdev_obj *obj);
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int lan966x_handle_port_mdb_del(struct lan966x_port *port,
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const struct switchdev_obj *obj);
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void lan966x_mdb_erase_entries(struct lan966x *lan966x, u16 vid);
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void lan966x_mdb_write_entries(struct lan966x *lan966x, u16 vid);
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void lan966x_mdb_clear_entries(struct lan966x *lan966x);
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void lan966x_mdb_restore_entries(struct lan966x *lan966x);
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int lan966x_ptp_init(struct lan966x *lan966x);
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void lan966x_ptp_deinit(struct lan966x *lan966x);
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int lan966x_ptp_hwtstamp_set(struct lan966x_port *port, struct ifreq *ifr);
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int lan966x_ptp_hwtstamp_get(struct lan966x_port *port, struct ifreq *ifr);
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void lan966x_ptp_rxtstamp(struct lan966x *lan966x, struct sk_buff *skb,
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u64 timestamp);
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int lan966x_ptp_txtstamp_request(struct lan966x_port *port,
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struct sk_buff *skb);
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void lan966x_ptp_txtstamp_release(struct lan966x_port *port,
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struct sk_buff *skb);
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irqreturn_t lan966x_ptp_irq_handler(int irq, void *args);
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static inline void __iomem *lan_addr(void __iomem *base[],
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int id, int tinst, int tcnt,
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int gbase, int ginst,
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int gcnt, int gwidth,
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int raddr, int rinst,
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int rcnt, int rwidth)
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{
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WARN_ON((tinst) >= tcnt);
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WARN_ON((ginst) >= gcnt);
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WARN_ON((rinst) >= rcnt);
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return base[id + (tinst)] +
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gbase + ((ginst) * gwidth) +
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raddr + ((rinst) * rwidth);
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}
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static inline u32 lan_rd(struct lan966x *lan966x, int id, int tinst, int tcnt,
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int gbase, int ginst, int gcnt, int gwidth,
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int raddr, int rinst, int rcnt, int rwidth)
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{
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return readl(lan_addr(lan966x->regs, id, tinst, tcnt, gbase, ginst,
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gcnt, gwidth, raddr, rinst, rcnt, rwidth));
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}
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static inline void lan_wr(u32 val, struct lan966x *lan966x,
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int id, int tinst, int tcnt,
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int gbase, int ginst, int gcnt, int gwidth,
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int raddr, int rinst, int rcnt, int rwidth)
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{
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writel(val, lan_addr(lan966x->regs, id, tinst, tcnt,
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gbase, ginst, gcnt, gwidth,
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raddr, rinst, rcnt, rwidth));
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}
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static inline void lan_rmw(u32 val, u32 mask, struct lan966x *lan966x,
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int id, int tinst, int tcnt,
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int gbase, int ginst, int gcnt, int gwidth,
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int raddr, int rinst, int rcnt, int rwidth)
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{
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u32 nval;
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nval = readl(lan_addr(lan966x->regs, id, tinst, tcnt, gbase, ginst,
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gcnt, gwidth, raddr, rinst, rcnt, rwidth));
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nval = (nval & ~mask) | (val & mask);
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writel(nval, lan_addr(lan966x->regs, id, tinst, tcnt, gbase, ginst,
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gcnt, gwidth, raddr, rinst, rcnt, rwidth));
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}
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#endif /* __LAN966X_MAIN_H__ */
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