Thread (16 messages) 16 messages, 3 authors, 2025-11-05
STALE234d REVIEWED: 1 (0M)
Revisions (2)
  1. v1 [diff vs current]
  2. v2 current

[PATCH net-next V2 4/7] net/mlx5: IPoIB, set self loopback prevention in TIR init

From: Tariq Toukan <tariqt@nvidia.com>
Date: 2025-10-30 13:33:55
Also in: linux-rdma, lkml
Subsystem: mellanox mlx5 core vpi driver, networking drivers, the rest · Maintainers: Saeed Mahameed, Leon Romanovsky, Tariq Toukan, Mark Bloch, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

In IPoIB, the self loopback prevention configuration apply in activation
stage has two roles: fulfill a firmware requirement for old firmware
(tis_tir_td_order=0), and update the proper configuration as it was not
set in init.

Here we set the proper configuration in init, to allow skipping the
modify_tirs commands on new firmware in a downstream patch.

Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Carolina Jubran <redacted>
---
 drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
index 49ab0de762c9..7f3f6d7edb38 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
@@ -409,6 +409,7 @@ static void mlx5i_destroy_flow_steering(struct mlx5e_priv *priv)
 static int mlx5i_init_rx(struct mlx5e_priv *priv)
 {
 	struct mlx5_core_dev *mdev = priv->mdev;
+	enum mlx5e_rx_res_features features;
 	int err;
 
 	priv->fs = mlx5e_fs_init(priv->profile, mdev,
@@ -427,7 +428,9 @@ static int mlx5i_init_rx(struct mlx5e_priv *priv)
 		goto err_destroy_q_counters;
 	}
 
-	priv->rx_res = mlx5e_rx_res_create(priv->mdev, 0, priv->max_nch, priv->drop_rq.rqn,
+	features = MLX5E_RX_RES_FEATURE_SELF_LB_BLOCK;
+	priv->rx_res = mlx5e_rx_res_create(priv->mdev, features, priv->max_nch,
+					   priv->drop_rq.rqn,
 					   &priv->channels.params.packet_merge,
 					   priv->channels.params.num_channels);
 	if (IS_ERR(priv->rx_res)) {
-- 
2.31.1
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