LXR linux/drivers/net/ethernet/mscc/ocelot.h

   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_BUFFER_CELL_SZ 60
  29
  30#define OCELOT_STATS_CHECK_DELAY (2 * HZ)
  31
  32#define OCELOT_PTP_QUEUE_SZ     128
  33
  34struct ocelot_port_tc {
  35        bool block_shared;
  36        unsigned long offload_cnt;
  37
  38        unsigned long police_id;
  39};
  40
  41struct ocelot_port_private {
  42        struct ocelot_port port;
  43        struct net_device *dev;
  44        struct phylink *phylink;
  45        struct phylink_config phylink_config;
  46        u8 chip_port;
  47        struct ocelot_port_tc tc;
  48};
  49
  50struct ocelot_dump_ctx {
  51        struct net_device *dev;
  52        struct sk_buff *skb;
  53        struct netlink_callback *cb;
  54        int idx;
  55};
  56
  57/* MAC table entry types.
  58 * ENTRYTYPE_NORMAL is subject to aging.
  59 * ENTRYTYPE_LOCKED is not subject to aging.
  60 * ENTRYTYPE_MACv4 is not subject to aging. For IPv4 multicast.
  61 * ENTRYTYPE_MACv6 is not subject to aging. For IPv6 multicast.
  62 */
  63enum macaccess_entry_type {
  64        ENTRYTYPE_NORMAL = 0,
  65        ENTRYTYPE_LOCKED,
  66        ENTRYTYPE_MACv4,
  67        ENTRYTYPE_MACv6,
  68};
  69
  70/* A (PGID) port mask structure, encoding the 2^ocelot->num_phys_ports
  71 * possibilities of egress port masks for L2 multicast traffic.
  72 * For a switch with 9 user ports, there are 512 possible port masks, but the
  73 * hardware only has 46 individual PGIDs that it can forward multicast traffic
  74 * to. So we need a structure that maps the limited PGID indices to the port
  75 * destinations requested by the user for L2 multicast.
  76 */
  77struct ocelot_pgid {
  78        unsigned long ports;
  79        int index;
  80        refcount_t refcount;
  81        struct list_head list;
  82};
  83
  84struct ocelot_multicast {
  85        struct list_head list;
  86        enum macaccess_entry_type entry_type;
  87        unsigned char addr[ETH_ALEN];
  88        u16 vid;
  89        u16 ports;
  90        struct ocelot_pgid *pgid;
  91};
  92
  93int ocelot_port_fdb_do_dump(const unsigned char *addr, u16 vid,
  94                            bool is_static, void *data);
  95int ocelot_mact_learn(struct ocelot *ocelot, int port,
  96                      const unsigned char mac[ETH_ALEN],
  97                      unsigned int vid, enum macaccess_entry_type type);
  98int ocelot_mact_forget(struct ocelot *ocelot,
  99                       const unsigned char mac[ETH_ALEN], unsigned int vid);
 100struct net_device *ocelot_port_to_netdev(struct ocelot *ocelot, int port);
 101int ocelot_netdev_to_port(struct net_device *dev);
 102
 103u32 ocelot_port_readl(struct ocelot_port *port, u32 reg);
 104void ocelot_port_writel(struct ocelot_port *port, u32 val, u32 reg);
 105
 106int ocelot_probe_port(struct ocelot *ocelot, int port, struct regmap *target,
 107                      struct device_node *portnp);
 108void ocelot_release_port(struct ocelot_port *ocelot_port);
 109int ocelot_devlink_init(struct ocelot *ocelot);
 110void ocelot_devlink_teardown(struct ocelot *ocelot);
 111int ocelot_port_devlink_init(struct ocelot *ocelot, int port,
 112                             enum devlink_port_flavour flavour);
 113void ocelot_port_devlink_teardown(struct ocelot *ocelot, int port);
 114
 115extern struct notifier_block ocelot_netdevice_nb;
 116extern struct notifier_block ocelot_switchdev_nb;
 117extern struct notifier_block ocelot_switchdev_blocking_nb;
 118extern const struct devlink_ops ocelot_devlink_ops;
 119
 120#endif
 121