22881adf85
Traffic mirroring modes that are in-chip implemented on egress need an internal buffer to work. As the only client, the SPAN module was managing the buffer so far. However logically it belongs to the buffers module. E.g. buffer size validation needs to take the size of the internal buffer into account. Therefore move the related code from SPAN to spectrum_buffers. Move over the callbacks that determine the minimum buffer size as a function of maximum speed and MTU. Add a field describing the internal buffer to struct mlxsw_sp_hdroom. Extend mlxsw_sp_hdroom_bufs_reset_sizes() to take care of sizing the internal buffer as well. Change the SPAN module to invoke that function and mlxsw_sp_hdroom_configure() like all the other hdroom clients. Drop the now-unnecessary mlxsw_sp_span_port_buffer_disable(). Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
112 lines
3.4 KiB
C
112 lines
3.4 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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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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};
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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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};
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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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};
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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 (*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_port_mtu_update(struct mlxsw_sp_port *port, u16 mtu);
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void mlxsw_sp_span_speed_update_work(struct work_struct *work);
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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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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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