netdev - [PATCH net-next V2 4/4] net/mlx5e: Add more information to hairpin table dump

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Date:   Wed, 22 Feb 2023 15:02:02 -0800
From:   Saeed Mahameed <saeed@...nel.org>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     Saeed Mahameed <saeedm@...dia.com>,
        "David S. Miller" <davem@...emloft.net>,
        Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org,
        Tariq Toukan <tariqt@...dia.com>, Gal Pressman <gal@...dia.com>
Subject: [PATCH net-next V2 4/4] net/mlx5e: Add more information to hairpin table dump

From: Gal Pressman <gal@...dia.com>

Print the number of hairpin queues and size as part of the hairpin table
dump.

Signed-off-by: Gal Pressman <gal@...dia.com>
Reviewed-by: Tariq Toukan <tariqt@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index 2e6351ef4d9c..a139b5e88e2a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -583,6 +583,7 @@ struct mlx5e_hairpin {
 	struct mlx5e_tir direct_tir;
 
 	int num_channels;
+	u8 log_num_packets;
 	struct mlx5e_rqt indir_rqt;
 	struct mlx5e_tir indir_tir[MLX5E_NUM_INDIR_TIRS];
 	struct mlx5_ttc_table *ttc;
@@ -929,6 +930,7 @@ mlx5e_hairpin_create(struct mlx5e_priv *priv, struct mlx5_hairpin_params *params
 	hp->func_mdev = func_mdev;
 	hp->func_priv = priv;
 	hp->num_channels = params->num_channels;
+	hp->log_num_packets = params->log_num_packets;
 
 	err = mlx5e_hairpin_create_transport(hp);
 	if (err)
@@ -1070,9 +1072,11 @@ static int debugfs_hairpin_table_dump_show(struct seq_file *file, void *priv)
 
 	mutex_lock(&tc->hairpin_tbl_lock);
 	hash_for_each(tc->hairpin_tbl, bkt, hpe, hairpin_hlist)
-		seq_printf(file, "Hairpin peer_vhca_id %u prio %u refcnt %u\n",
+		seq_printf(file,
+			   "Hairpin peer_vhca_id %u prio %u refcnt %u num_channels %u num_packets %lu\n",
 			   hpe->peer_vhca_id, hpe->prio,
-			   refcount_read(&hpe->refcnt));
+			   refcount_read(&hpe->refcnt), hpe->hp->num_channels,
+			   BIT(hpe->hp->log_num_packets));
 	mutex_unlock(&tc->hairpin_tbl_lock);
 
 	return 0;
-- 
2.39.1