Commit a97cfe4d authored by Jiri Pirko's avatar Jiri Pirko Committed by David S. Miller
Browse files

mlxsw: spectrum_acl: Add C-TCAM spill tracepoint



Add some visibility to the rule addition process and trace whenever rule
spilled into C-TCAM.

Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent cb56e214
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+3 −0
Original line number Diff line number Diff line
@@ -7,6 +7,8 @@
#include <linux/gfp.h>
#include <linux/refcount.h>
#include <linux/rhashtable.h>
#define CREATE_TRACE_POINTS
#include <trace/events/mlxsw.h>

#include "reg.h"
#include "core.h"
@@ -578,6 +580,7 @@ int mlxsw_sp_acl_atcam_entry_add(struct mlxsw_sp *mlxsw_sp,
	/* It is possible we failed to add the rule to the A-TCAM due to
	 * exceeded number of masks. Try to spill into C-TCAM.
	 */
	trace_mlxsw_sp_acl_atcam_entry_add_ctcam_spill(mlxsw_sp, aregion);
	err = mlxsw_sp_acl_ctcam_entry_add(mlxsw_sp, &aregion->cregion,
					   &achunk->cchunk, &aentry->centry,
					   rulei, true);
+38 −0
Original line number Diff line number Diff line
/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
/* Copyright (c) 2019 Mellanox Technologies. All rights reserved */

#undef TRACE_SYSTEM
#define TRACE_SYSTEM mlxsw

#if !defined(_MLXSW_TRACEPOINT_H) || defined(TRACE_HEADER_MULTI_READ)
#define _MLXSW_TRACEPOINT_H

#include <linux/tracepoint.h>

struct mlxsw_sp;
struct mlxsw_sp_acl_atcam_region;

TRACE_EVENT(mlxsw_sp_acl_atcam_entry_add_ctcam_spill,
	TP_PROTO(const struct mlxsw_sp *mlxsw_sp,
		 const struct mlxsw_sp_acl_atcam_region *aregion),

	TP_ARGS(mlxsw_sp, aregion),

	TP_STRUCT__entry(
		__field(const void *, mlxsw_sp)
		__field(const void *, aregion)
	),

	TP_fast_assign(
		__entry->mlxsw_sp = mlxsw_sp;
		__entry->aregion = aregion;
	),

	TP_printk("mlxsw_sp %p, aregion %p",
		  __entry->mlxsw_sp, __entry->aregion)
);

#endif /* _MLXSW_TRACEPOINT_H */

/* This part must be outside protection */
#include <trace/define_trace.h>