1 files changed, 417 insertions, 0 deletions
diff --git a/drivers/net/ethernet/marvell/prestera/prestera.h b/drivers/net/ethernet/marvell/prestera/prestera.h
new file mode 100644
index 000000000..35554ee80
--- /dev/null
+++ b/drivers/net/ethernet/marvell/prestera/prestera.h
@@ -0,0 +1,417 @@
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
+/* Copyright (c) 2019-2020 Marvell International Ltd. All rights reserved. */
+
+#ifndef _PRESTERA_H_
+#define _PRESTERA_H_
+
+#include <linux/notifier.h>
+#include <linux/skbuff.h>
+#include <linux/workqueue.h>
+#include <linux/phylink.h>
+#include <net/devlink.h>
+#include <uapi/linux/if_ether.h>
+
+#define PRESTERA_DRV_NAME	"prestera"
+
+#define PRESTERA_DEFAULT_VID    1
+
+struct prestera_fw_rev {
+	u16 maj;
+	u16 min;
+	u16 sub;
+};
+
+struct prestera_flood_domain {
+	struct prestera_switch *sw;
+	struct list_head flood_domain_port_list;
+	u32 idx;
+};
+
+struct prestera_mdb_entry {
+	struct prestera_switch *sw;
+	struct prestera_flood_domain *flood_domain;
+	unsigned char addr[ETH_ALEN];
+	u16 vid;
+};
+
+struct prestera_flood_domain_port {
+	struct prestera_flood_domain *flood_domain;
+	struct net_device *dev;
+	struct list_head flood_domain_port_node;
+	u16 vid;
+};
+
+struct prestera_port_stats {
+	u64 good_octets_received;
+	u64 bad_octets_received;
+	u64 mac_trans_error;
+	u64 broadcast_frames_received;
+	u64 multicast_frames_received;
+	u64 frames_64_octets;
+	u64 frames_65_to_127_octets;
+	u64 frames_128_to_255_octets;
+	u64 frames_256_to_511_octets;
+	u64 frames_512_to_1023_octets;
+	u64 frames_1024_to_max_octets;
+	u64 excessive_collision;
+	u64 multicast_frames_sent;
+	u64 broadcast_frames_sent;
+	u64 fc_sent;
+	u64 fc_received;
+	u64 buffer_overrun;
+	u64 undersize;
+	u64 fragments;
+	u64 oversize;
+	u64 jabber;
+	u64 rx_error_frame_received;
+	u64 bad_crc;
+	u64 collisions;
+	u64 late_collision;
+	u64 unicast_frames_received;
+	u64 unicast_frames_sent;
+	u64 sent_multiple;
+	u64 sent_deferred;
+	u64 good_octets_sent;
+};
+
+#define PRESTERA_AP_PORT_MAX   (10)
+
+struct prestera_port_caps {
+	u64 supp_link_modes;
+	u8 supp_fec;
+	u8 type;
+	u8 transceiver;
+};
+
+struct prestera_lag {
+	struct net_device *dev;
+	struct list_head members;
+	u16 member_count;
+	u16 lag_id;
+};
+
+struct prestera_flow_block;
+
+struct prestera_port_mac_state {
+	bool valid;
+	u32 mode;
+	u32 speed;
+	bool oper;
+	u8 duplex;
+	u8 fc;
+	u8 fec;
+};
+
+struct prestera_port_phy_state {
+	u64 lmode_bmap;
+	struct {
+		bool pause;
+		bool asym_pause;
+	} remote_fc;
+	u8 mdix;
+};
+
+struct prestera_port_mac_config {
+	u32 mode;
+	u32 speed;
+	bool admin;
+	u8 inband;
+	u8 duplex;
+	u8 fec;
+};
+
+struct prestera_port_phy_config {
+	u32 mode;
+	bool admin;
+	u8 mdix;
+};
+
+struct prestera_port {
+	struct net_device *dev;
+	struct prestera_switch *sw;
+	struct prestera_flow_block *ingress_flow_block;
+	struct prestera_flow_block *egress_flow_block;
+	struct devlink_port dl_port;
+	struct list_head lag_member;
+	struct prestera_lag *lag;
+	u32 id;
+	u32 hw_id;
+	u32 dev_id;
+	u16 fp_id;
+	u16 pvid;
+	bool autoneg;
+	u64 adver_link_modes;
+	u8 adver_fec;
+	struct prestera_port_caps caps;
+	struct list_head list;
+	struct list_head vlans_list;
+	struct {
+		struct prestera_port_stats stats;
+		struct delayed_work caching_dw;
+	} cached_hw_stats;
+	struct prestera_port_mac_config cfg_mac;
+	struct prestera_port_phy_config cfg_phy;
+	struct prestera_port_mac_state state_mac;
+	struct prestera_port_phy_state state_phy;
+
+	struct phylink_config phy_config;
+	struct phylink *phy_link;
+	struct phylink_pcs phylink_pcs;
+
+	/* protects state_mac */
+	spinlock_t state_mac_lock;
+};
+
+struct prestera_device {
+	struct device *dev;
+	u8 __iomem *ctl_regs;
+	u8 __iomem *pp_regs;
+	struct prestera_fw_rev fw_rev;
+	void *priv;
+
+	/* called by device driver to handle received packets */
+	void (*recv_pkt)(struct prestera_device *dev);
+
+	/* called by device driver to pass event up to the higher layer */
+	int (*recv_msg)(struct prestera_device *dev, void *msg, size_t size);
+
+	/* called by higher layer to send request to the firmware */
+	int (*send_req)(struct prestera_device *dev, int qid, void *in_msg,
+			size_t in_size, void *out_msg, size_t out_size,
+			unsigned int wait);
+};
+
+enum prestera_event_type {
+	PRESTERA_EVENT_TYPE_UNSPEC,
+
+	PRESTERA_EVENT_TYPE_PORT,
+	PRESTERA_EVENT_TYPE_FDB,
+	PRESTERA_EVENT_TYPE_RXTX,
+
+	PRESTERA_EVENT_TYPE_MAX
+};
+
+enum prestera_rxtx_event_id {
+	PRESTERA_RXTX_EVENT_UNSPEC,
+	PRESTERA_RXTX_EVENT_RCV_PKT,
+};
+
+enum prestera_port_event_id {
+	PRESTERA_PORT_EVENT_UNSPEC,
+	PRESTERA_PORT_EVENT_MAC_STATE_CHANGED,
+};
+
+struct prestera_port_event {
+	u32 port_id;
+	union {
+		struct {
+			u32 mode;
+			u32 speed;
+			u8 oper;
+			u8 duplex;
+			u8 fc;
+			u8 fec;
+		} mac;
+		struct {
+			u64 lmode_bmap;
+			struct {
+				bool pause;
+				bool asym_pause;
+			} remote_fc;
+			u8 mdix;
+		} phy;
+	} data;
+};
+
+enum prestera_fdb_entry_type {
+	PRESTERA_FDB_ENTRY_TYPE_REG_PORT,
+	PRESTERA_FDB_ENTRY_TYPE_LAG,
+	PRESTERA_FDB_ENTRY_TYPE_MAX
+};
+
+enum prestera_fdb_event_id {
+	PRESTERA_FDB_EVENT_UNSPEC,
+	PRESTERA_FDB_EVENT_LEARNED,
+	PRESTERA_FDB_EVENT_AGED,
+};
+
+struct prestera_fdb_event {
+	enum prestera_fdb_entry_type type;
+	union {
+		u32 port_id;
+		u16 lag_id;
+	} dest;
+	u32 vid;
+	union {
+		u8 mac[ETH_ALEN];
+	} data;
+};
+
+struct prestera_event {
+	u16 id;
+	union {
+		struct prestera_port_event port_evt;
+		struct prestera_fdb_event fdb_evt;
+	};
+};
+
+enum prestera_if_type {
+	/* the interface is of port type (dev,port) */
+	PRESTERA_IF_PORT_E = 0,
+
+	/* the interface is of lag type (lag-id) */
+	PRESTERA_IF_LAG_E = 1,
+
+	/* the interface is of Vid type (vlan-id) */
+	PRESTERA_IF_VID_E = 3,
+};
+
+struct prestera_iface {
+	enum prestera_if_type type;
+	struct {
+		u32 hw_dev_num;
+		u32 port_num;
+	} dev_port;
+	u32 hw_dev_num;
+	u16 vr_id;
+	u16 lag_id;
+	u16 vlan_id;
+};
+
+struct prestera_switchdev;
+struct prestera_span;
+struct prestera_rxtx;
+struct prestera_trap_data;
+struct prestera_acl;
+
+struct prestera_switch {
+	struct prestera_device *dev;
+	struct prestera_switchdev *swdev;
+	struct prestera_rxtx *rxtx;
+	struct prestera_acl *acl;
+	struct prestera_span *span;
+	struct list_head event_handlers;
+	struct notifier_block netdev_nb;
+	struct prestera_trap_data *trap_data;
+	char base_mac[ETH_ALEN];
+	struct list_head port_list;
+	rwlock_t port_list_lock;
+	u32 port_count;
+	u32 mtu_min;
+	u32 mtu_max;
+	u8 id;
+	struct device_node *np;
+	struct prestera_router *router;
+	struct prestera_lag *lags;
+	struct prestera_counter *counter;
+	u8 lag_member_max;
+	u8 lag_max;
+	u32 size_tbl_router_nexthop;
+};
+
+struct prestera_router {
+	struct prestera_switch *sw;
+	struct list_head vr_list;
+	struct list_head rif_entry_list;
+	struct rhashtable nh_neigh_ht;
+	struct rhashtable nexthop_group_ht;
+	struct rhashtable fib_ht;
+	struct rhashtable kern_neigh_cache_ht;
+	struct rhashtable kern_fib_cache_ht;
+	struct notifier_block inetaddr_nb;
+	struct notifier_block inetaddr_valid_nb;
+	struct notifier_block fib_nb;
+	struct notifier_block netevent_nb;
+	u8 *nhgrp_hw_state_cache; /* Bitmap cached hw state of nhs */
+	unsigned long nhgrp_hw_cache_kick; /* jiffies */
+	struct {
+		struct delayed_work dw;
+	} neighs_update;
+};
+
+struct prestera_rxtx_params {
+	bool use_sdma;
+	u32 map_addr;
+};
+
+#define prestera_dev(sw)		((sw)->dev->dev)
+
+static inline void prestera_write(const struct prestera_switch *sw,
+				  unsigned int reg, u32 val)
+{
+	writel(val, sw->dev->pp_regs + reg);
+}
+
+static inline u32 prestera_read(const struct prestera_switch *sw,
+				unsigned int reg)
+{
+	return readl(sw->dev->pp_regs + reg);
+}
+
+int prestera_device_register(struct prestera_device *dev);
+void prestera_device_unregister(struct prestera_device *dev);
+
+struct prestera_port *prestera_port_find_by_hwid(struct prestera_switch *sw,
+						 u32 dev_id, u32 hw_id);
+
+int prestera_port_autoneg_set(struct prestera_port *port, u64 link_modes);
+
+int prestera_router_init(struct prestera_switch *sw);
+void prestera_router_fini(struct prestera_switch *sw);
+
+struct prestera_port *prestera_find_port(struct prestera_switch *sw, u32 id);
+
+struct prestera_switch *prestera_switch_get(struct net_device *dev);
+
+int prestera_port_cfg_mac_read(struct prestera_port *port,
+			       struct prestera_port_mac_config *cfg);
+
+int prestera_port_cfg_mac_write(struct prestera_port *port,
+				struct prestera_port_mac_config *cfg);
+
+struct prestera_port *prestera_port_dev_lower_find(struct net_device *dev);
+
+void prestera_queue_work(struct work_struct *work);
+void prestera_queue_delayed_work(struct delayed_work *work, unsigned long delay);
+void prestera_queue_drain(void);
+
+int prestera_port_learning_set(struct prestera_port *port, bool learn_enable);
+int prestera_port_uc_flood_set(struct prestera_port *port, bool flood);
+int prestera_port_mc_flood_set(struct prestera_port *port, bool flood);
+
+int prestera_port_br_locked_set(struct prestera_port *port, bool br_locked);
+
+int prestera_port_pvid_set(struct prestera_port *port, u16 vid);
+
+bool prestera_netdev_check(const struct net_device *dev);
+
+int prestera_is_valid_mac_addr(struct prestera_port *port, const u8 *addr);
+
+bool prestera_port_is_lag_member(const struct prestera_port *port);
+int prestera_lag_id(struct prestera_switch *sw,
+		    struct net_device *lag_dev, u16 *lag_id);
+
+struct prestera_lag *prestera_lag_by_id(struct prestera_switch *sw, u16 id);
+
+u16 prestera_port_lag_id(const struct prestera_port *port);
+
+struct prestera_mdb_entry *
+prestera_mdb_entry_create(struct prestera_switch *sw,
+			  const unsigned char *addr, u16 vid);
+void prestera_mdb_entry_destroy(struct prestera_mdb_entry *mdb_entry);
+
+struct prestera_flood_domain *
+prestera_flood_domain_create(struct prestera_switch *sw);
+void prestera_flood_domain_destroy(struct prestera_flood_domain *flood_domain);
+
+int
+prestera_flood_domain_port_create(struct prestera_flood_domain *flood_domain,
+				  struct net_device *dev,
+				  u16 vid);
+void
+prestera_flood_domain_port_destroy(struct prestera_flood_domain_port *port);
+struct prestera_flood_domain_port *
+prestera_flood_domain_port_find(struct prestera_flood_domain *flood_domain,
+				struct net_device *dev, u16 vid);
+
+#endif /* _PRESTERA_H_ */