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/phy.h>
  16#include <linux/phy/phy.h>
  17#include <linux/platform_device.h>
  18#include <linux/regmap.h>
  19
  20#include <soc/mscc/ocelot_qsys.h>
  21#include <soc/mscc/ocelot_sys.h>
  22#include <soc/mscc/ocelot_dev.h>
  23#include <soc/mscc/ocelot_ana.h>
  24#include <soc/mscc/ocelot_ptp.h>
  25#include <soc/mscc/ocelot.h>
  26#include "ocelot_rew.h"
  27#include "ocelot_qs.h"
  28
  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
  35struct ocelot_port_tc {
  36        bool block_shared;
  37        unsigned long offload_cnt;
  38
  39        unsigned long police_id;
  40};
  41
  42struct ocelot_port_private {
  43        struct ocelot_port port;
  44        struct net_device *dev;
  45        struct phy_device *phy;
  46        u8 chip_port;
  47
  48        struct phy *serdes;
  49
  50        struct ocelot_port_tc tc;
  51};
  52
  53struct ocelot_dump_ctx {
  54        struct net_device *dev;
  55        struct sk_buff *skb;
  56        struct netlink_callback *cb;
  57        int idx;
  58};
  59
  60/* MAC table entry types.
  61 * ENTRYTYPE_NORMAL is subject to aging.
  62 * ENTRYTYPE_LOCKED is not subject to aging.
  63 * ENTRYTYPE_MACv4 is not subject to aging. For IPv4 multicast.
  64 * ENTRYTYPE_MACv6 is not subject to aging. For IPv6 multicast.
  65 */
  66enum macaccess_entry_type {
  67        ENTRYTYPE_NORMAL = 0,
  68        ENTRYTYPE_LOCKED,
  69        ENTRYTYPE_MACv4,
  70        ENTRYTYPE_MACv6,
  71};
  72
  73/* A (PGID) port mask structure, encoding the 2^ocelot->num_phys_ports
  74 * possibilities of egress port masks for L2 multicast traffic.
  75 * For a switch with 9 user ports, there are 512 possible port masks, but the
  76 * hardware only has 46 individual PGIDs that it can forward multicast traffic
  77 * to. So we need a structure that maps the limited PGID indices to the port
  78 * destinations requested by the user for L2 multicast.
  79 */
  80struct ocelot_pgid {
  81        unsigned long ports;
  82        int index;
  83        refcount_t refcount;
  84        struct list_head list;
  85};
  86
  87struct ocelot_multicast {
  88        struct list_head list;
  89        enum macaccess_entry_type entry_type;
  90        unsigned char addr[ETH_ALEN];
  91        u16 vid;
  92        u16 ports;
  93        struct ocelot_pgid *pgid;
  94};
  95
  96int ocelot_port_fdb_do_dump(const unsigned char *addr, u16 vid,
  97                            bool is_static, void *data);
  98int ocelot_mact_learn(struct ocelot *ocelot, int port,
  99                      const unsigned char mac[ETH_ALEN],
 100                      unsigned int vid, enum macaccess_entry_type type);
 101int ocelot_mact_forget(struct ocelot *ocelot,
 102                       const unsigned char mac[ETH_ALEN], unsigned int vid);
 103struct net_device *ocelot_port_to_netdev(struct ocelot *ocelot, int port);
 104int ocelot_netdev_to_port(struct net_device *dev);
 105
 106u32 ocelot_port_readl(struct ocelot_port *port, u32 reg);
 107void ocelot_port_writel(struct ocelot_port *port, u32 val, u32 reg);
 108
 109int ocelot_probe_port(struct ocelot *ocelot, int port, struct regmap *target,
 110                      struct phy_device *phy);
 111void ocelot_release_port(struct ocelot_port *ocelot_port);
 112int ocelot_devlink_init(struct ocelot *ocelot);
 113void ocelot_devlink_teardown(struct ocelot *ocelot);
 114int ocelot_port_devlink_init(struct ocelot *ocelot, int port,
 115                             enum devlink_port_flavour flavour);
 116void ocelot_port_devlink_teardown(struct ocelot *ocelot, int port);
 117
 118extern struct notifier_block ocelot_netdevice_nb;
 119extern struct notifier_block ocelot_switchdev_nb;
 120extern struct notifier_block ocelot_switchdev_blocking_nb;
 121extern const struct devlink_ops ocelot_devlink_ops;
 122
 123#endif
 124