125 lines
4.0 KiB
C
125 lines
4.0 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
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/* Copyright (c) 2018 Mellanox Technologies. All rights reserved */
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#ifndef _MLXSW_SPECTRUM_SPAN_H
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#define _MLXSW_SPECTRUM_SPAN_H
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#include <linux/types.h>
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#include <linux/if_ether.h>
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#include <linux/refcount.h>
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#include "spectrum_router.h"
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struct mlxsw_sp;
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struct mlxsw_sp_port;
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/* SPAN session identifiers that correspond to MLXSW_TRAP_ID_MIRROR_SESSION<i>
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* trap identifiers. The session identifier is an attribute of the SPAN agent,
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* which determines the trap identifier of packets that are mirrored to the
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* CPU. Packets that are trapped to the CPU for the same logical reason (e.g.,
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* buffer drops) should use the same session identifier.
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*/
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enum mlxsw_sp_span_session_id {
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MLXSW_SP_SPAN_SESSION_ID_BUFFER,
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MLXSW_SP_SPAN_SESSION_ID_SAMPLING,
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__MLXSW_SP_SPAN_SESSION_ID_MAX = 8,
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};
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struct mlxsw_sp_span_parms {
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struct mlxsw_sp_port *dest_port; /* NULL for unoffloaded SPAN. */
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unsigned int ttl;
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unsigned char dmac[ETH_ALEN];
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unsigned char smac[ETH_ALEN];
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union mlxsw_sp_l3addr daddr;
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union mlxsw_sp_l3addr saddr;
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u16 vid;
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u16 policer_id;
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bool policer_enable;
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enum mlxsw_sp_span_session_id session_id;
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};
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enum mlxsw_sp_span_trigger {
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MLXSW_SP_SPAN_TRIGGER_INGRESS,
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MLXSW_SP_SPAN_TRIGGER_EGRESS,
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MLXSW_SP_SPAN_TRIGGER_TAIL_DROP,
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MLXSW_SP_SPAN_TRIGGER_EARLY_DROP,
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MLXSW_SP_SPAN_TRIGGER_ECN,
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};
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struct mlxsw_sp_span_trigger_parms {
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int span_id;
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u32 probability_rate;
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};
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struct mlxsw_sp_span_agent_parms {
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const struct net_device *to_dev;
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u16 policer_id;
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bool policer_enable;
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enum mlxsw_sp_span_session_id session_id;
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};
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struct mlxsw_sp_span_entry_ops;
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struct mlxsw_sp_span_ops {
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int (*init)(struct mlxsw_sp *mlxsw_sp);
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int (*policer_id_base_set)(struct mlxsw_sp *mlxsw_sp,
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u16 policer_id_base);
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};
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struct mlxsw_sp_span_entry {
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const struct net_device *to_dev;
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const struct mlxsw_sp_span_entry_ops *ops;
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struct mlxsw_sp_span_parms parms;
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refcount_t ref_count;
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int id;
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};
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struct mlxsw_sp_span_entry_ops {
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bool is_static;
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bool (*can_handle)(const struct net_device *to_dev);
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int (*parms_set)(struct mlxsw_sp *mlxsw_sp,
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const struct net_device *to_dev,
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struct mlxsw_sp_span_parms *sparmsp);
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int (*configure)(struct mlxsw_sp_span_entry *span_entry,
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struct mlxsw_sp_span_parms sparms);
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void (*deconfigure)(struct mlxsw_sp_span_entry *span_entry);
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};
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int mlxsw_sp_span_init(struct mlxsw_sp *mlxsw_sp);
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void mlxsw_sp_span_fini(struct mlxsw_sp *mlxsw_sp);
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void mlxsw_sp_span_respin(struct mlxsw_sp *mlxsw_sp);
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struct mlxsw_sp_span_entry *
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mlxsw_sp_span_entry_find_by_port(struct mlxsw_sp *mlxsw_sp,
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const struct net_device *to_dev);
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void mlxsw_sp_span_entry_invalidate(struct mlxsw_sp *mlxsw_sp,
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struct mlxsw_sp_span_entry *span_entry);
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int mlxsw_sp_span_agent_get(struct mlxsw_sp *mlxsw_sp, int *p_span_id,
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const struct mlxsw_sp_span_agent_parms *parms);
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void mlxsw_sp_span_agent_put(struct mlxsw_sp *mlxsw_sp, int span_id);
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int mlxsw_sp_span_analyzed_port_get(struct mlxsw_sp_port *mlxsw_sp_port,
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bool ingress);
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void mlxsw_sp_span_analyzed_port_put(struct mlxsw_sp_port *mlxsw_sp_port,
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bool ingress);
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int mlxsw_sp_span_agent_bind(struct mlxsw_sp *mlxsw_sp,
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enum mlxsw_sp_span_trigger trigger,
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struct mlxsw_sp_port *mlxsw_sp_port,
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const struct mlxsw_sp_span_trigger_parms *parms);
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void
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mlxsw_sp_span_agent_unbind(struct mlxsw_sp *mlxsw_sp,
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enum mlxsw_sp_span_trigger trigger,
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struct mlxsw_sp_port *mlxsw_sp_port,
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const struct mlxsw_sp_span_trigger_parms *parms);
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int mlxsw_sp_span_trigger_enable(struct mlxsw_sp_port *mlxsw_sp_port,
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enum mlxsw_sp_span_trigger trigger, u8 tc);
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void mlxsw_sp_span_trigger_disable(struct mlxsw_sp_port *mlxsw_sp_port,
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enum mlxsw_sp_span_trigger trigger, u8 tc);
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bool mlxsw_sp_span_trigger_is_ingress(enum mlxsw_sp_span_trigger trigger);
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extern const struct mlxsw_sp_span_ops mlxsw_sp1_span_ops;
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extern const struct mlxsw_sp_span_ops mlxsw_sp2_span_ops;
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extern const struct mlxsw_sp_span_ops mlxsw_sp3_span_ops;
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#endif
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