netdev - [PATCH net-next V4 11/11] net/mlx5: fs, Add support for RDMA RX steering over IB link layer

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Message-ID: <20241219175841.1094544-12-tariqt@nvidia.com>
Date: Thu, 19 Dec 2024 19:58:41 +0200
From: Tariq Toukan <tariqt@...dia.com>
To: "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>, Eric Dumazet <edumazet@...gle.com>, "Andrew
 Lunn" <andrew+netdev@...n.ch>
CC: <netdev@...r.kernel.org>, Saeed Mahameed <saeedm@...dia.com>, Gal Pressman
	<gal@...dia.com>, Leon Romanovsky <leonro@...dia.com>, Mark Bloch
	<mbloch@...dia.com>, Przemek Kitszel <przemyslaw.kitszel@...el.com>,
	Patrisious Haddad <phaddad@...dia.com>, Tariq Toukan <tariqt@...dia.com>
Subject: [PATCH net-next V4 11/11] net/mlx5: fs, Add support for RDMA RX steering over IB link layer

From: Patrisious Haddad <phaddad@...dia.com>

Relax the capability check for creating the RDMA RX steering domain
by considering only the capabilities reported by the firmware
as necessary for its creation, which in turn allows RDMA RX creation
over devices with IB link layer as well.

The table_miss_action_domain capability is required only for a specific
priority, which is handled in mlx5_rdma_enable_roce_steering().
The additional capability check for this case is already in place.

Signed-off-by: Patrisious Haddad <phaddad@...dia.com>
Reviewed-by: Mark Bloch <mbloch@...dia.com>
Signed-off-by: Tariq Toukan <tariqt@...dia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c  | 3 ++-
 drivers/net/ethernet/mellanox/mlx5/core/fs_core.c | 3 +--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
index 6bf0aade69d7..ae20c061e0fb 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
@@ -217,7 +217,8 @@ static int mlx5_cmd_update_root_ft(struct mlx5_flow_root_namespace *ns,
 	int err;
 
 	if ((MLX5_CAP_GEN(dev, port_type) == MLX5_CAP_PORT_TYPE_IB) &&
-	    underlay_qpn == 0)
+	    underlay_qpn == 0 &&
+	    (ft->type != FS_FT_RDMA_RX && ft->type != FS_FT_RDMA_TX))
 		return 0;
 
 	if (ft->type == FS_FT_FDB &&
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
index ae1a5705b26d..41b5e98a0495 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
@@ -3665,8 +3665,7 @@ int mlx5_fs_core_init(struct mlx5_core_dev *dev)
 			goto err;
 	}
 
-	if (MLX5_CAP_FLOWTABLE_RDMA_RX(dev, ft_support) &&
-	    MLX5_CAP_FLOWTABLE_RDMA_RX(dev, table_miss_action_domain)) {
+	if (MLX5_CAP_FLOWTABLE_RDMA_RX(dev, ft_support)) {
 		err = init_rdma_rx_root_ns(steering);
 		if (err)
 			goto err;
-- 
2.45.0