[PATCH net-next 12/12] net/mlx5: HWS, Export action STE tables to debugfs

Tariq Toukan
2025-04-08T14:03:28Z

From: Vlad Dogaru <vdogaru@nvidia.com>

Introduce a new type of dump object and dump all action STE tables,
along with information on their RTCs and STEs.

Signed-off-by: Vlad Dogaru <vdogaru@nvidia.com>
Reviewed-by: Hamdan Agbariya <hamdani@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
---
.../mellanox/mlx5/core/steering/hws/debug.c | 36 ++++++++++++++++++-
.../mellanox/mlx5/core/steering/hws/debug.h | 2 ++
2 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/debug.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/debug.c
index 38f75dec9cfc..91568d6c1dac 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/debug.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/debug.c
@@ -387,10 +387,41 @@ static int hws_debug_dump_context_stc(struct seq_file *f, struct mlx5hws_context
return 0;
}

+static void
+hws_debug_dump_action_ste_table(struct seq_file *f,
+ struct mlx5hws_action_ste_table *action_tbl)
+{
+ int ste_0_id = mlx5hws_pool_get_base_id(action_tbl->pool);
+ int ste_1_id = mlx5hws_pool_get_base_mirror_id(action_tbl->pool);
+
+ seq_printf(f, "%d,0x%llx,%d,%d,%d,%d\n",
+ MLX5HWS_DEBUG_RES_TYPE_ACTION_STE_TABLE,
+ HWS_PTR_TO_ID(action_tbl),
+ action_tbl->rtc_0_id, ste_0_id,
+ action_tbl->rtc_1_id, ste_1_id);
+}
+
+static void hws_debug_dump_action_ste_pool(struct seq_file *f,
+ struct mlx5hws_action_ste_pool *pool)
+{
+ struct mlx5hws_action_ste_table *action_tbl;
+ enum mlx5hws_pool_optimize opt;
+
+ mutex_lock(&pool->lock);
+ for (opt = MLX5HWS_POOL_OPTIMIZE_NONE; opt < MLX5HWS_POOL_OPTIMIZE_MAX;
+ opt++) {
+ list_for_each_entry(action_tbl, &pool->elems[opt].available,
+ list_node) {
+ hws_debug_dump_action_ste_table(f, action_tbl);
+ }
+ }
+ mutex_unlock(&pool->lock);
+}
+
static int hws_debug_dump_context(struct seq_file *f, struct mlx5hws_context *ctx)
{
struct mlx5hws_table *tbl;
- int ret;
+ int ret, i;

ret = hws_debug_dump_context_info(f, ctx);
if (ret)
@@ -410,6 +441,9 @@ static int hws_debug_dump_context(struct seq_file *f, struct mlx5hws_context *ct
return ret;
}

+ for (i = 0; i < ctx->queues; i++)
+ hws_debug_dump_action_ste_pool(f, &ctx->action_ste_pool[i]);
+
return 0;
}

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/debug.h b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/debug.h
index e44e7ae28f93..89c396f9f266 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/debug.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/debug.h
@@ -26,6 +26,8 @@ enum mlx5hws_debug_res_type {
MLX5HWS_DEBUG_RES_TYPE_MATCHER_TEMPLATE_HASH_DEFINER = 4205,
MLX5HWS_DEBUG_RES_TYPE_MATCHER_TEMPLATE_RANGE_DEFINER = 4206,
MLX5HWS_DEBUG_RES_TYPE_MATCHER_TEMPLATE_COMPARE_MATCH_DEFINER = 4207,
+
+ MLX5HWS_DEBUG_RES_TYPE_ACTION_STE_TABLE = 4300,
};

static inline u64
--
2.31.1