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
  34 struct ocelot_port_tc {
  35         bool block_shared;
  36         unsigned long offload_cnt;
  37
  38         unsigned long police_id;
  39 };
  40
  41 struct 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
  50 struct 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  */
  63 enum 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  */
  77 struct ocelot_pgid {
  78         unsigned long ports;
  79         int index;
  80         refcount_t refcount;
  81         struct list_head list;
  82 };
  83
  84 struct 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
  93 int ocelot_port_fdb_do_dump(const unsigned char *addr, u16 vid,
  94                             bool is_static, void *data);
  95 int ocelot_mact_learn(struct ocelot *ocelot, int port,
  96                       const unsigned char mac[ETH_ALEN],
  97                       unsigned int vid, enum macaccess_entry_type type);
  98 int ocelot_mact_forget(struct ocelot *ocelot,
  99                        const unsigned char mac[ETH_ALEN], unsigned int vid);
 100 struct net_device *ocelot_port_to_netdev(struct ocelot *ocelot, int port);
 101 int ocelot_netdev_to_port(struct net_device *dev);
 102
 103 u32 ocelot_port_readl(struct ocelot_port *port, u32 reg);
 104 void ocelot_port_writel(struct ocelot_port *port, u32 val, u32 reg);
 105
 106 int ocelot_probe_port(struct ocelot *ocelot, int port, struct regmap *target,
 107                       struct device_node *portnp);
 108 void ocelot_release_port(struct ocelot_port *ocelot_port);
 109 int ocelot_devlink_init(struct ocelot *ocelot);
 110 void ocelot_devlink_teardown(struct ocelot *ocelot);
 111 int ocelot_port_devlink_init(struct ocelot *ocelot, int port,
 112                              enum devlink_port_flavour flavour);
 113 void ocelot_port_devlink_teardown(struct ocelot *ocelot, int port);
 114
 115 extern struct notifier_block ocelot_netdevice_nb;
 116 extern struct notifier_block ocelot_switchdev_nb;
 117 extern struct notifier_block ocelot_switchdev_blocking_nb;
 118 extern const struct devlink_ops ocelot_devlink_ops;
 119
 120 #endif