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
  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 phy_device *phy;
  46         u8 chip_port;
  47
  48         struct phy *serdes;
  49
  50         struct ocelot_port_tc tc;
  51 };
  52
  53 struct 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  */
  66 enum 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  */
  80 struct ocelot_pgid {
  81         unsigned long ports;
  82         int index;
  83         refcount_t refcount;
  84         struct list_head list;
  85 };
  86
  87 struct 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
  96 int ocelot_port_fdb_do_dump(const unsigned char *addr, u16 vid,
  97                             bool is_static, void *data);
  98 int ocelot_mact_learn(struct ocelot *ocelot, int port,
  99                       const unsigned char mac[ETH_ALEN],
 100                       unsigned int vid, enum macaccess_entry_type type);
 101 int ocelot_mact_forget(struct ocelot *ocelot,
 102                        const unsigned char mac[ETH_ALEN], unsigned int vid);
 103 struct net_device *ocelot_port_to_netdev(struct ocelot *ocelot, int port);
 104 int ocelot_netdev_to_port(struct net_device *dev);
 105
 106 u32 ocelot_port_readl(struct ocelot_port *port, u32 reg);
 107 void ocelot_port_writel(struct ocelot_port *port, u32 val, u32 reg);
 108
 109 int ocelot_probe_port(struct ocelot *ocelot, int port, struct regmap *target,
 110                       struct phy_device *phy);
 111 void ocelot_release_port(struct ocelot_port *ocelot_port);
 112 int ocelot_devlink_init(struct ocelot *ocelot);
 113 void ocelot_devlink_teardown(struct ocelot *ocelot);
 114 int ocelot_port_devlink_init(struct ocelot *ocelot, int port,
 115                              enum devlink_port_flavour flavour);
 116 void ocelot_port_devlink_teardown(struct ocelot *ocelot, int port);
 117
 118 extern struct notifier_block ocelot_netdevice_nb;
 119 extern struct notifier_block ocelot_switchdev_nb;
 120 extern struct notifier_block ocelot_switchdev_blocking_nb;
 121 extern const struct devlink_ops ocelot_devlink_ops;
 122
 123 #endif