netdev - [PATCH net-next V2 05/11] net/mlx5e: SHAMPO: Improve hw gro capability checking

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1747950086-1246773-6-git-send-email-tariqt@nvidia.com>
Date: Fri, 23 May 2025 00:41:20 +0300
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: Saeed Mahameed <saeedm@...dia.com>, Leon Romanovsky <leon@...nel.org>,
	Tariq Toukan <tariqt@...dia.com>, Richard Cochran <richardcochran@...il.com>,
	Alexei Starovoitov <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>,
	Jesper Dangaard Brouer <hawk@...nel.org>, John Fastabend
	<john.fastabend@...il.com>, <netdev@...r.kernel.org>,
	<linux-rdma@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<bpf@...r.kernel.org>, Moshe Shemesh <moshe@...dia.com>, Mark Bloch
	<mbloch@...dia.com>, Gal Pressman <gal@...dia.com>, Cosmin Ratiu
	<cratiu@...dia.com>, Dragos Tatulea <dtatulea@...dia.com>
Subject: [PATCH net-next V2 05/11] net/mlx5e: SHAMPO: Improve hw gro capability checking

From: Saeed Mahameed <saeedm@...dia.com>

Add missing HW capabilities, declare the feature in
netdev->vlan_features, similar to other features in mlx5e_build_nic_netdev.
No functional change here as all by default disabled features are
explicitly disabled at the bottom of the function.

Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
Reviewed-by: Dragos Tatulea <dtatulea@...dia.com>
Signed-off-by: Cosmin Ratiu <cratiu@...dia.com>
Signed-off-by: Tariq Toukan <tariqt@...dia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index e1e44533b744..a81d354af7c8 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -78,7 +78,8 @@
 
 static bool mlx5e_hw_gro_supported(struct mlx5_core_dev *mdev)
 {
-	if (!MLX5_CAP_GEN(mdev, shampo))
+	if (!MLX5_CAP_GEN(mdev, shampo) ||
+	    !MLX5_CAP_SHAMPO(mdev, shampo_header_split_data_merge))
 		return false;
 
 	/* Our HW-GRO implementation relies on "KSM Mkey" for
@@ -5499,17 +5500,17 @@ static void mlx5e_build_nic_netdev(struct net_device *netdev)
 						   MLX5E_MPWRQ_UMR_MODE_ALIGNED))
 		netdev->vlan_features    |= NETIF_F_LRO;
 
+	if (mlx5e_hw_gro_supported(mdev) &&
+	    mlx5e_check_fragmented_striding_rq_cap(mdev, PAGE_SHIFT,
+						   MLX5E_MPWRQ_UMR_MODE_ALIGNED))
+		netdev->vlan_features |= NETIF_F_GRO_HW;
+
 	netdev->hw_features       = netdev->vlan_features;
 	netdev->hw_features      |= NETIF_F_HW_VLAN_CTAG_TX;
 	netdev->hw_features      |= NETIF_F_HW_VLAN_CTAG_RX;
 	netdev->hw_features      |= NETIF_F_HW_VLAN_CTAG_FILTER;
 	netdev->hw_features      |= NETIF_F_HW_VLAN_STAG_TX;
 
-	if (mlx5e_hw_gro_supported(mdev) &&
-	    mlx5e_check_fragmented_striding_rq_cap(mdev, PAGE_SHIFT,
-						   MLX5E_MPWRQ_UMR_MODE_ALIGNED))
-		netdev->hw_features    |= NETIF_F_GRO_HW;
-
 	if (mlx5e_tunnel_any_tx_proto_supported(mdev)) {
 		netdev->hw_enc_features |= NETIF_F_HW_CSUM;
 		netdev->hw_enc_features |= NETIF_F_TSO;
-- 
2.31.1