diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/spectrum_span.h')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_span.h | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_span.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum_span.h new file mode 100644 index 000000000..82e711afb --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_span.h @@ -0,0 +1,129 @@ +/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ +/* Copyright (c) 2018 Mellanox Technologies. All rights reserved */ + +#ifndef _MLXSW_SPECTRUM_SPAN_H +#define _MLXSW_SPECTRUM_SPAN_H + +#include <linux/types.h> +#include <linux/if_ether.h> +#include <linux/refcount.h> + +#include "spectrum_router.h" + +struct mlxsw_sp; +struct mlxsw_sp_port; + +/* SPAN session identifiers that correspond to MLXSW_TRAP_ID_MIRROR_SESSION<i> + * trap identifiers. The session identifier is an attribute of the SPAN agent, + * which determines the trap identifier of packets that are mirrored to the + * CPU. Packets that are trapped to the CPU for the same logical reason (e.g., + * buffer drops) should use the same session identifier. + */ +enum mlxsw_sp_span_session_id { + MLXSW_SP_SPAN_SESSION_ID_BUFFER, + MLXSW_SP_SPAN_SESSION_ID_SAMPLING, + + __MLXSW_SP_SPAN_SESSION_ID_MAX = 8, +}; + +struct mlxsw_sp_span_parms { + struct mlxsw_sp_port *dest_port; /* NULL for unoffloaded SPAN. */ + unsigned int ttl; + unsigned char dmac[ETH_ALEN]; + unsigned char smac[ETH_ALEN]; + union mlxsw_sp_l3addr daddr; + union mlxsw_sp_l3addr saddr; + u16 vid; + u16 policer_id; + bool policer_enable; + enum mlxsw_sp_span_session_id session_id; +}; + +enum mlxsw_sp_span_trigger { + MLXSW_SP_SPAN_TRIGGER_INGRESS, + MLXSW_SP_SPAN_TRIGGER_EGRESS, + MLXSW_SP_SPAN_TRIGGER_TAIL_DROP, + MLXSW_SP_SPAN_TRIGGER_EARLY_DROP, + MLXSW_SP_SPAN_TRIGGER_ECN, +}; + +struct mlxsw_sp_span_trigger_parms { + int span_id; + u32 probability_rate; +}; + +struct mlxsw_sp_span_agent_parms { + const struct net_device *to_dev; + u16 policer_id; + bool policer_enable; + enum mlxsw_sp_span_session_id session_id; +}; + +struct mlxsw_sp_span_entry_ops; + +struct mlxsw_sp_span_ops { + int (*init)(struct mlxsw_sp *mlxsw_sp); + int (*policer_id_base_set)(struct mlxsw_sp *mlxsw_sp, + u16 policer_id_base); +}; + +struct mlxsw_sp_span_entry { + const struct net_device *to_dev; + const struct mlxsw_sp_span_entry_ops *ops; + struct mlxsw_sp_span_parms parms; + refcount_t ref_count; + int id; +}; + +struct mlxsw_sp_span_entry_ops { + bool is_static; + bool (*can_handle)(const struct net_device *to_dev); + int (*parms_set)(struct mlxsw_sp *mlxsw_sp, + const struct net_device *to_dev, + struct mlxsw_sp_span_parms *sparmsp); + int (*configure)(struct mlxsw_sp_span_entry *span_entry, + struct mlxsw_sp_span_parms sparms); + void (*deconfigure)(struct mlxsw_sp_span_entry *span_entry); +}; + +int mlxsw_sp_span_init(struct mlxsw_sp *mlxsw_sp); +void mlxsw_sp_span_fini(struct mlxsw_sp *mlxsw_sp); +void mlxsw_sp_span_respin(struct mlxsw_sp *mlxsw_sp); + +struct mlxsw_sp_span_entry * +mlxsw_sp_span_entry_find_by_port(struct mlxsw_sp *mlxsw_sp, + const struct net_device *to_dev); + +void mlxsw_sp_span_entry_invalidate(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_span_entry *span_entry); + +int mlxsw_sp_span_port_mtu_update(struct mlxsw_sp_port *port, u16 mtu); +void mlxsw_sp_span_speed_update_work(struct work_struct *work); + +int mlxsw_sp_span_agent_get(struct mlxsw_sp *mlxsw_sp, int *p_span_id, + const struct mlxsw_sp_span_agent_parms *parms); +void mlxsw_sp_span_agent_put(struct mlxsw_sp *mlxsw_sp, int span_id); +int mlxsw_sp_span_analyzed_port_get(struct mlxsw_sp_port *mlxsw_sp_port, + bool ingress); +void mlxsw_sp_span_analyzed_port_put(struct mlxsw_sp_port *mlxsw_sp_port, + bool ingress); +int mlxsw_sp_span_agent_bind(struct mlxsw_sp *mlxsw_sp, + enum mlxsw_sp_span_trigger trigger, + struct mlxsw_sp_port *mlxsw_sp_port, + const struct mlxsw_sp_span_trigger_parms *parms); +void +mlxsw_sp_span_agent_unbind(struct mlxsw_sp *mlxsw_sp, + enum mlxsw_sp_span_trigger trigger, + struct mlxsw_sp_port *mlxsw_sp_port, + const struct mlxsw_sp_span_trigger_parms *parms); +int mlxsw_sp_span_trigger_enable(struct mlxsw_sp_port *mlxsw_sp_port, + enum mlxsw_sp_span_trigger trigger, u8 tc); +void mlxsw_sp_span_trigger_disable(struct mlxsw_sp_port *mlxsw_sp_port, + enum mlxsw_sp_span_trigger trigger, u8 tc); +bool mlxsw_sp_span_trigger_is_ingress(enum mlxsw_sp_span_trigger trigger); + +extern const struct mlxsw_sp_span_ops mlxsw_sp1_span_ops; +extern const struct mlxsw_sp_span_ops mlxsw_sp2_span_ops; +extern const struct mlxsw_sp_span_ops mlxsw_sp3_span_ops; + +#endif |