From: Or Har-Toov <ohartoov@nvidia.com>
Date: Thu, 21 May 2026 11:08:40 +0000 (+0300)
Subject: net/mlx5: Register SF resource on satellite PF ports
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ac338d8011c0c8ad2d3b54b1ed5fc3cc5fee683b;p=thirdparty%2Flinux.git

net/mlx5: Register SF resource on satellite PF ports

Extend port-level resource registration to satellite PF vports.

Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260521110843.367329-10-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/devlink_port.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/devlink_port.c
index 05d89769b917..6e50311faa27 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/devlink_port.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/devlink_port.c
@@ -176,14 +176,28 @@ static const struct devlink_port_ops mlx5_esw_dl_sf_port_ops = {
 };
 
 static int mlx5_esw_devlink_port_res_register(struct mlx5_eswitch *esw,
-					      struct devlink_port *dl_port)
+					      struct devlink_port *dl_port,
+					      u16 vport_num)
 {
 	struct devlink_resource_size_params size_params;
 	struct mlx5_core_dev *dev = esw->dev;
 	u16 max_sfs, sf_base_id;
 	int err;
 
-	err = mlx5_esw_sf_max_hpf_functions(dev, &max_sfs, &sf_base_id);
+	if (vport_num != MLX5_VPORT_HOST_PF &&
+	    !mlx5_esw_is_spf_vport(esw, vport_num))
+		return 0;
+
+	if (vport_num == MLX5_VPORT_HOST_PF) {
+		err = mlx5_esw_sf_max_hpf_functions(dev, &max_sfs,
+						    &sf_base_id);
+	} else {
+		int spf_idx = mlx5_esw_spf_vport_to_idx(esw, vport_num);
+
+		err = mlx5_esw_sf_max_spf_functions(dev, spf_idx, &max_sfs,
+						    &sf_base_id);
+	}
+
 	if (err)
 		return err;
 
@@ -232,14 +246,11 @@ int mlx5_esw_offloads_devlink_port_register(struct mlx5_eswitch *esw, struct mlx
 	if (err)
 		goto rate_err;
 
-	if (vport_num == MLX5_VPORT_HOST_PF) {
-		err = mlx5_esw_devlink_port_res_register(esw,
-							 &dl_port->dl_port);
-		if (err)
-			mlx5_core_dbg(dev,
-				      "Failed to register port resources: %d\n",
-				       err);
-	}
+	err = mlx5_esw_devlink_port_res_register(esw, &dl_port->dl_port,
+						 vport_num);
+	if (err)
+		mlx5_core_dbg(dev, "Failed to register port resources: %d\n",
+			      err);
 
 	return 0;