cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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ocelot.h (3773B)


      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_vcap.h>
     25#include <soc/mscc/ocelot.h>
     26#include "ocelot_rew.h"
     27#include "ocelot_qs.h"
     28
     29#define OCELOT_STANDALONE_PVID 0
     30#define OCELOT_BUFFER_CELL_SZ 60
     31
     32#define OCELOT_STATS_CHECK_DELAY (2 * HZ)
     33
     34#define OCELOT_PTP_QUEUE_SZ	128
     35
     36#define OCELOT_JUMBO_MTU	9000
     37
     38struct ocelot_port_tc {
     39	bool block_shared;
     40	unsigned long offload_cnt;
     41	unsigned long ingress_mirred_id;
     42	unsigned long egress_mirred_id;
     43	unsigned long police_id;
     44};
     45
     46struct ocelot_port_private {
     47	struct ocelot_port port;
     48	struct net_device *dev;
     49	struct phylink *phylink;
     50	struct phylink_config phylink_config;
     51	struct ocelot_port_tc tc;
     52};
     53
     54struct ocelot_dump_ctx {
     55	struct net_device *dev;
     56	struct sk_buff *skb;
     57	struct netlink_callback *cb;
     58	int idx;
     59};
     60
     61/* A (PGID) port mask structure, encoding the 2^ocelot->num_phys_ports
     62 * possibilities of egress port masks for L2 multicast traffic.
     63 * For a switch with 9 user ports, there are 512 possible port masks, but the
     64 * hardware only has 46 individual PGIDs that it can forward multicast traffic
     65 * to. So we need a structure that maps the limited PGID indices to the port
     66 * destinations requested by the user for L2 multicast.
     67 */
     68struct ocelot_pgid {
     69	unsigned long ports;
     70	int index;
     71	refcount_t refcount;
     72	struct list_head list;
     73};
     74
     75struct ocelot_multicast {
     76	struct list_head list;
     77	enum macaccess_entry_type entry_type;
     78	unsigned char addr[ETH_ALEN];
     79	u16 vid;
     80	u16 ports;
     81	struct ocelot_pgid *pgid;
     82};
     83
     84int ocelot_bridge_num_find(struct ocelot *ocelot,
     85			   const struct net_device *bridge);
     86
     87int ocelot_port_fdb_do_dump(const unsigned char *addr, u16 vid,
     88			    bool is_static, void *data);
     89int ocelot_mact_learn(struct ocelot *ocelot, int port,
     90		      const unsigned char mac[ETH_ALEN],
     91		      unsigned int vid, enum macaccess_entry_type type);
     92int ocelot_mact_forget(struct ocelot *ocelot,
     93		       const unsigned char mac[ETH_ALEN], unsigned int vid);
     94struct net_device *ocelot_port_to_netdev(struct ocelot *ocelot, int port);
     95int ocelot_netdev_to_port(struct net_device *dev);
     96
     97u32 ocelot_port_readl(struct ocelot_port *port, u32 reg);
     98void ocelot_port_writel(struct ocelot_port *port, u32 val, u32 reg);
     99
    100int ocelot_probe_port(struct ocelot *ocelot, int port, struct regmap *target,
    101		      struct device_node *portnp);
    102void ocelot_release_port(struct ocelot_port *ocelot_port);
    103int ocelot_devlink_init(struct ocelot *ocelot);
    104void ocelot_devlink_teardown(struct ocelot *ocelot);
    105int ocelot_port_devlink_init(struct ocelot *ocelot, int port,
    106			     enum devlink_port_flavour flavour);
    107void ocelot_port_devlink_teardown(struct ocelot *ocelot, int port);
    108
    109int ocelot_trap_add(struct ocelot *ocelot, int port,
    110		    unsigned long cookie, bool take_ts,
    111		    void (*populate)(struct ocelot_vcap_filter *f));
    112int ocelot_trap_del(struct ocelot *ocelot, int port, unsigned long cookie);
    113
    114struct ocelot_mirror *ocelot_mirror_get(struct ocelot *ocelot, int to,
    115					struct netlink_ext_ack *extack);
    116void ocelot_mirror_put(struct ocelot *ocelot);
    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