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mlxsw: spectrum_acl: Add couple of vregion rehash tracepoints

Browse source 
As vregion rehash is happening in delayed work, add some visibility to
the process using a few tracepoints.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2019-02-07 11:22:55 +00:00 committed by David S. Miller
parent 98bbf70c1c
commit 3985de7260
2 changed files with 69 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c
View file

@ -8,6 +8,7 @@
#include <linux/list.h>
#include <linux/rhashtable.h>
#include <linux/netdevice.h>
#include <trace/events/mlxsw.h>
#include "reg.h"
#include "core.h"
@ -1175,6 +1176,8 @@ mlxsw_sp_acl_tcam_vregion_migrate(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_tcam_region *region2, *unused_region;
int err;
trace_mlxsw_sp_acl_tcam_vregion_migrate(mlxsw_sp, vregion);
region2 = mlxsw_sp_acl_tcam_region_create(mlxsw_sp, vregion->tcam,
vregion, hints_priv);
if (IS_ERR(region2))
@ -1219,6 +1222,7 @@ mlxsw_sp_acl_tcam_vregion_rehash(struct mlxsw_sp *mlxsw_sp,
void *hints_priv;
int err;
trace_mlxsw_sp_acl_tcam_vregion_rehash(mlxsw_sp, vregion);
if (vregion->failed_rollback)
return -EBUSY;
@ -1233,8 +1237,11 @@ mlxsw_sp_acl_tcam_vregion_rehash(struct mlxsw_sp *mlxsw_sp,
err = mlxsw_sp_acl_tcam_vregion_migrate(mlxsw_sp, vregion, hints_priv);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Failed to migrate vregion\n");
if (vregion->failed_rollback)
if (vregion->failed_rollback) {
trace_mlxsw_sp_acl_tcam_vregion_rehash_dis(mlxsw_sp,
vregion);
dev_err(mlxsw_sp->bus_info->dev, "Failed to rollback during vregion migration fail\n");
}
}
ops->region_rehash_hints_put(hints_priv);

61
include/trace/events/mlxsw.h
View file

@ -11,6 +11,7 @@
struct mlxsw_sp;
struct mlxsw_sp_acl_atcam_region;
struct mlxsw_sp_acl_tcam_vregion;
TRACE_EVENT(mlxsw_sp_acl_atcam_entry_add_ctcam_spill,
TP_PROTO(const struct mlxsw_sp *mlxsw_sp,
@ -32,6 +33,66 @@ TRACE_EVENT(mlxsw_sp_acl_atcam_entry_add_ctcam_spill,
__entry->mlxsw_sp, __entry->aregion)
);
TRACE_EVENT(mlxsw_sp_acl_tcam_vregion_rehash,
TP_PROTO(const struct mlxsw_sp *mlxsw_sp,
const struct mlxsw_sp_acl_tcam_vregion *vregion),
TP_ARGS(mlxsw_sp, vregion),
TP_STRUCT__entry(
__field(const void *, mlxsw_sp)
__field(const void *, vregion)
),
TP_fast_assign(
__entry->mlxsw_sp = mlxsw_sp;
__entry->vregion = vregion;
),
TP_printk("mlxsw_sp %p, vregion %p",
__entry->mlxsw_sp, __entry->vregion)
);
TRACE_EVENT(mlxsw_sp_acl_tcam_vregion_migrate,
TP_PROTO(const struct mlxsw_sp *mlxsw_sp,
const struct mlxsw_sp_acl_tcam_vregion *vregion),
TP_ARGS(mlxsw_sp, vregion),
TP_STRUCT__entry(
__field(const void *, mlxsw_sp)
__field(const void *, vregion)
),
TP_fast_assign(
__entry->mlxsw_sp = mlxsw_sp;
__entry->vregion = vregion;
),
TP_printk("mlxsw_sp %p, vregion %p",
__entry->mlxsw_sp, __entry->vregion)
);
TRACE_EVENT(mlxsw_sp_acl_tcam_vregion_rehash_dis,
TP_PROTO(const struct mlxsw_sp *mlxsw_sp,
const struct mlxsw_sp_acl_tcam_vregion *vregion),
TP_ARGS(mlxsw_sp, vregion),
TP_STRUCT__entry(
__field(const void *, mlxsw_sp)
__field(const void *, vregion)
),
TP_fast_assign(
__entry->mlxsw_sp = mlxsw_sp;
__entry->vregion = vregion;
),
TP_printk("mlxsw_sp %p, vregion %p",
__entry->mlxsw_sp, __entry->vregion)
);
#endif /* _MLXSW_TRACEPOINT_H */
/* This part must be outside protection */