1 /* SPDX-License-Identifier: (GPL-2.0 OR MIT) */ 2 /* 3 * Microsemi Ocelot Switch driver 4 * 5 * Copyright (c) 2017 Microsemi Corporation 6 */ 7 8 #ifndef _MSCC_OCELOT_H_ 9 #define _MSCC_OCELOT_H_ 10 11 #include <linux/bitops.h> 12 #include <linux/etherdevice.h> 13 #include <linux/if_vlan.h> 14 #include <linux/net_tstamp.h> 15 #include <linux/phylink.h> 16 #include <linux/platform_device.h> 17 #include <linux/regmap.h> 18 19 #include <soc/mscc/ocelot_qsys.h> 20 #include <soc/mscc/ocelot_sys.h> 21 #include <soc/mscc/ocelot_dev.h> 22 #include <soc/mscc/ocelot_ana.h> 23 #include <soc/mscc/ocelot_ptp.h> 24 #include <soc/mscc/ocelot.h> 25 #include "ocelot_rew.h" 26 #include "ocelot_qs.h" 27 28 #define OCELOT_VLAN_UNAWARE_PVID 0 29 #define OCELOT_BUFFER_CELL_SZ 60 30 31 #define OCELOT_STATS_CHECK_DELAY (2 * HZ) 32 33 #define OCELOT_PTP_QUEUE_SZ 128 34 35 struct ocelot_port_tc { 36 bool block_shared; 37 unsigned long offload_cnt; 38 39 unsigned long police_id; 40 }; 41 42 struct ocelot_port_private { 43 struct ocelot_port port; 44 struct net_device *dev; 45 struct phylink *phylink; 46 struct phylink_config phylink_config; 47 u8 chip_port; 48 struct ocelot_port_tc tc; 49 }; 50 51 struct ocelot_dump_ctx { 52 struct net_device *dev; 53 struct sk_buff *skb; 54 struct netlink_callback *cb; 55 int idx; 56 }; 57 58 /* MAC table entry types. 59 * ENTRYTYPE_NORMAL is subject to aging. 60 * ENTRYTYPE_LOCKED is not subject to aging. 61 * ENTRYTYPE_MACv4 is not subject to aging. For IPv4 multicast. 62 * ENTRYTYPE_MACv6 is not subject to aging. For IPv6 multicast. 63 */ 64 enum macaccess_entry_type { 65 ENTRYTYPE_NORMAL = 0, 66 ENTRYTYPE_LOCKED, 67 ENTRYTYPE_MACv4, 68 ENTRYTYPE_MACv6, 69 }; 70 71 /* A (PGID) port mask structure, encoding the 2^ocelot->num_phys_ports 72 * possibilities of egress port masks for L2 multicast traffic. 73 * For a switch with 9 user ports, there are 512 possible port masks, but the 74 * hardware only has 46 individual PGIDs that it can forward multicast traffic 75 * to. So we need a structure that maps the limited PGID indices to the port 76 * destinations requested by the user for L2 multicast. 77 */ 78 struct ocelot_pgid { 79 unsigned long ports; 80 int index; 81 refcount_t refcount; 82 struct list_head list; 83 }; 84 85 struct ocelot_multicast { 86 struct list_head list; 87 enum macaccess_entry_type entry_type; 88 unsigned char addr[ETH_ALEN]; 89 u16 vid; 90 u16 ports; 91 struct ocelot_pgid *pgid; 92 }; 93 94 int ocelot_port_fdb_do_dump(const unsigned char *addr, u16 vid, 95 bool is_static, void *data); 96 int ocelot_mact_learn(struct ocelot *ocelot, int port, 97 const unsigned char mac[ETH_ALEN], 98 unsigned int vid, enum macaccess_entry_type type); 99 int ocelot_mact_forget(struct ocelot *ocelot, 100 const unsigned char mac[ETH_ALEN], unsigned int vid); 101 struct net_device *ocelot_port_to_netdev(struct ocelot *ocelot, int port); 102 int ocelot_netdev_to_port(struct net_device *dev); 103 104 u32 ocelot_port_readl(struct ocelot_port *port, u32 reg); 105 void ocelot_port_writel(struct ocelot_port *port, u32 val, u32 reg); 106 107 int ocelot_probe_port(struct ocelot *ocelot, int port, struct regmap *target, 108 struct device_node *portnp); 109 void ocelot_release_port(struct ocelot_port *ocelot_port); 110 int ocelot_devlink_init(struct ocelot *ocelot); 111 void ocelot_devlink_teardown(struct ocelot *ocelot); 112 int ocelot_port_devlink_init(struct ocelot *ocelot, int port, 113 enum devlink_port_flavour flavour); 114 void ocelot_port_devlink_teardown(struct ocelot *ocelot, int port); 115 116 extern struct notifier_block ocelot_netdevice_nb; 117 extern struct notifier_block ocelot_switchdev_nb; 118 extern struct notifier_block ocelot_switchdev_blocking_nb; 119 extern const struct devlink_ops ocelot_devlink_ops; 120 121 #endif 122