[net-next 5/8] net/mlx5: Add trace points for flow tables create/destroy

[Saeed Mahameed]

From: Or Gerlitz <ogerl...@mellanox.com>

We were not tracking flow tables so far, add it up.

Signed-off-by: Or Gerlitz <ogerl...@mellanox.com>
Signed-off-by: Saeed Mahameed <sae...@mellanox.com>
---
 .../mellanox/mlx5/core/diag/fs_tracepoint.c   |  2 ++
 .../mellanox/mlx5/core/diag/fs_tracepoint.h   | 35 +++++++++++++++++++
 .../net/ethernet/mellanox/mlx5/core/fs_core.c |  2 ++
 3 files changed, 39 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.c 
b/drivers/net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.c
index 424457ff9759..8ecac81a385d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.c
@@ -258,6 +258,8 @@ const char *parse_fs_dst(struct trace_seq *p,
        return ret;
 }
 
+EXPORT_TRACEPOINT_SYMBOL(mlx5_fs_add_ft);
+EXPORT_TRACEPOINT_SYMBOL(mlx5_fs_del_ft);
 EXPORT_TRACEPOINT_SYMBOL(mlx5_fs_add_fg);
 EXPORT_TRACEPOINT_SYMBOL(mlx5_fs_del_fg);
 EXPORT_TRACEPOINT_SYMBOL(mlx5_fs_set_fte);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.h 
b/drivers/net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.h
index d027ce00c8ce..a4cf123e3f17 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.h
@@ -61,6 +61,41 @@ const char *parse_fs_dst(struct trace_seq *p,
                         const struct mlx5_flow_destination *dst,
                         u32 counter_id);
 
+TRACE_EVENT(mlx5_fs_add_ft,
+           TP_PROTO(const struct mlx5_flow_table *ft),
+           TP_ARGS(ft),
+           TP_STRUCT__entry(
+               __field(const struct mlx5_flow_table *, ft)
+               __field(u32, id)
+               __field(u32, level)
+               __field(u32, type)
+           ),
+           TP_fast_assign(
+                          __entry->ft = ft;
+                          __entry->id = ft->id;
+                          __entry->level = ft->level;
+                          __entry->type = ft->type;
+           ),
+           TP_printk("ft=%p id=%u level=%u type=%u \n",
+                     __entry->ft, __entry->id, __entry->level, __entry->type)
+           );
+
+TRACE_EVENT(mlx5_fs_del_ft,
+           TP_PROTO(const struct mlx5_flow_table *ft),
+           TP_ARGS(ft),
+           TP_STRUCT__entry(
+               __field(const struct mlx5_flow_table *, ft)
+               __field(u32, id)
+           ),
+           TP_fast_assign(
+                          __entry->ft = ft;
+                          __entry->id = ft->id;
+
+           ),
+           TP_printk("ft=%p id=%u\n",
+                     __entry->ft, __entry->id)
+           );
+
 TRACE_EVENT(mlx5_fs_add_fg,
            TP_PROTO(const struct mlx5_flow_group *fg),
            TP_ARGS(fg),
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c 
b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
index 79f122b45def..b2df7c3749fb 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
@@ -397,6 +397,7 @@ static void del_hw_flow_table(struct fs_node *node)
        fs_get_obj(ft, node);
        dev = get_dev(&ft->node);
        root = find_root(&ft->node);
+       trace_mlx5_fs_del_ft(ft);
 
        if (node->active) {
                err = root->cmds->destroy_flow_table(dev, ft);
@@ -1019,6 +1020,7 @@ static struct mlx5_flow_table 
*__mlx5_create_flow_table(struct mlx5_flow_namespa
        fs_prio->num_ft++;
        up_write_ref_node(&fs_prio->node);
        mutex_unlock(&root->chain_lock);
+       trace_mlx5_fs_add_ft(ft);
        return ft;
 destroy_ft:
        root->cmds->destroy_flow_table(root->dev, ft);
-- 
2.20.1