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1/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */2/* Copyright (c) 2018 Mellanox Technologies. All rights reserved */3 4#ifndef _MLXSW_SPECTRUM_SPAN_H5#define _MLXSW_SPECTRUM_SPAN_H6 7#include <linux/types.h>8#include <linux/if_ether.h>9#include <linux/refcount.h>10 11#include "spectrum_router.h"12 13struct mlxsw_sp;14struct mlxsw_sp_port;15 16/* SPAN session identifiers that correspond to MLXSW_TRAP_ID_MIRROR_SESSION<i>17 * trap identifiers. The session identifier is an attribute of the SPAN agent,18 * which determines the trap identifier of packets that are mirrored to the19 * CPU. Packets that are trapped to the CPU for the same logical reason (e.g.,20 * buffer drops) should use the same session identifier.21 */22enum mlxsw_sp_span_session_id {23 MLXSW_SP_SPAN_SESSION_ID_BUFFER,24 MLXSW_SP_SPAN_SESSION_ID_SAMPLING,25 26 __MLXSW_SP_SPAN_SESSION_ID_MAX = 8,27};28 29struct mlxsw_sp_span_parms {30 struct mlxsw_sp_port *dest_port; /* NULL for unoffloaded SPAN. */31 unsigned int ttl;32 unsigned char dmac[ETH_ALEN];33 unsigned char smac[ETH_ALEN];34 union mlxsw_sp_l3addr daddr;35 union mlxsw_sp_l3addr saddr;36 u16 vid;37 u16 policer_id;38 bool policer_enable;39 enum mlxsw_sp_span_session_id session_id;40};41 42enum mlxsw_sp_span_trigger {43 MLXSW_SP_SPAN_TRIGGER_INGRESS,44 MLXSW_SP_SPAN_TRIGGER_EGRESS,45 MLXSW_SP_SPAN_TRIGGER_TAIL_DROP,46 MLXSW_SP_SPAN_TRIGGER_EARLY_DROP,47 MLXSW_SP_SPAN_TRIGGER_ECN,48};49 50struct mlxsw_sp_span_trigger_parms {51 int span_id;52 u32 probability_rate;53};54 55struct mlxsw_sp_span_agent_parms {56 const struct net_device *to_dev;57 u16 policer_id;58 bool policer_enable;59 enum mlxsw_sp_span_session_id session_id;60};61 62struct mlxsw_sp_span_entry_ops;63 64struct mlxsw_sp_span_ops {65 int (*init)(struct mlxsw_sp *mlxsw_sp);66 int (*policer_id_base_set)(struct mlxsw_sp *mlxsw_sp,67 u16 policer_id_base);68};69 70struct mlxsw_sp_span_entry {71 const struct net_device *to_dev;72 const struct mlxsw_sp_span_entry_ops *ops;73 struct mlxsw_sp_span_parms parms;74 refcount_t ref_count;75 int id;76};77 78struct mlxsw_sp_span_entry_ops {79 bool is_static;80 bool (*can_handle)(const struct net_device *to_dev);81 int (*parms_set)(struct mlxsw_sp *mlxsw_sp,82 const struct net_device *to_dev,83 struct mlxsw_sp_span_parms *sparmsp);84 int (*configure)(struct mlxsw_sp_span_entry *span_entry,85 struct mlxsw_sp_span_parms sparms);86 void (*deconfigure)(struct mlxsw_sp_span_entry *span_entry);87};88 89int mlxsw_sp_span_init(struct mlxsw_sp *mlxsw_sp);90void mlxsw_sp_span_fini(struct mlxsw_sp *mlxsw_sp);91void mlxsw_sp_span_respin(struct mlxsw_sp *mlxsw_sp);92 93struct mlxsw_sp_span_entry *94mlxsw_sp_span_entry_find_by_port(struct mlxsw_sp *mlxsw_sp,95 const struct net_device *to_dev);96void mlxsw_sp_span_entry_invalidate(struct mlxsw_sp *mlxsw_sp,97 struct mlxsw_sp_span_entry *span_entry);98int mlxsw_sp_span_agent_get(struct mlxsw_sp *mlxsw_sp, int *p_span_id,99 const struct mlxsw_sp_span_agent_parms *parms);100void mlxsw_sp_span_agent_put(struct mlxsw_sp *mlxsw_sp, int span_id);101int mlxsw_sp_span_analyzed_port_get(struct mlxsw_sp_port *mlxsw_sp_port,102 bool ingress);103void mlxsw_sp_span_analyzed_port_put(struct mlxsw_sp_port *mlxsw_sp_port,104 bool ingress);105int mlxsw_sp_span_agent_bind(struct mlxsw_sp *mlxsw_sp,106 enum mlxsw_sp_span_trigger trigger,107 struct mlxsw_sp_port *mlxsw_sp_port,108 const struct mlxsw_sp_span_trigger_parms *parms);109void110mlxsw_sp_span_agent_unbind(struct mlxsw_sp *mlxsw_sp,111 enum mlxsw_sp_span_trigger trigger,112 struct mlxsw_sp_port *mlxsw_sp_port,113 const struct mlxsw_sp_span_trigger_parms *parms);114int mlxsw_sp_span_trigger_enable(struct mlxsw_sp_port *mlxsw_sp_port,115 enum mlxsw_sp_span_trigger trigger, u8 tc);116void mlxsw_sp_span_trigger_disable(struct mlxsw_sp_port *mlxsw_sp_port,117 enum mlxsw_sp_span_trigger trigger, u8 tc);118bool mlxsw_sp_span_trigger_is_ingress(enum mlxsw_sp_span_trigger trigger);119 120extern const struct mlxsw_sp_span_ops mlxsw_sp1_span_ops;121extern const struct mlxsw_sp_span_ops mlxsw_sp2_span_ops;122extern const struct mlxsw_sp_span_ops mlxsw_sp3_span_ops;123 124#endif125