blob: 3b86ddddc7560f173dd34b81fa94b481dfde5563 [file] [log] [blame]
/* 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/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 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 CPU_PORT 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
/* 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;
};
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 {
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;
};
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;
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_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);
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);
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);
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__ */