netdev - [PATCH mlx5-next 04/10] net/mlx5: Add support for querying bond speed

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: <20251218-vf-bw-lag-mode-v1-4-7d8ed4368bea@nvidia.com>
Date: Thu, 18 Dec 2025 17:58:20 +0200
From: Edward Srouji <edwards@...dia.com>
To: <edwards@...dia.com>, Leon Romanovsky <leon@...nel.org>, Saeed Mahameed
	<saeedm@...dia.com>, Tariq Toukan <tariqt@...dia.com>, Mark Bloch
	<mbloch@...dia.com>, Andrew Lunn <andrew+netdev@...n.ch>, "David S. Miller"
	<davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski
	<kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Jason Gunthorpe
	<jgg@...pe.ca>
CC: <netdev@...r.kernel.org>, <linux-rdma@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, Or Har-Toov <ohartoov@...dia.com>
Subject: [PATCH mlx5-next 04/10] net/mlx5: Add support for querying bond  speed

From: Or Har-Toov <ohartoov@...dia.com>

Add mlx5_lag_query_bond_speed() to query the aggregated speed of
lag configurationsi with a bond device.

Signed-off-by: Or Har-Toov <ohartoov@...dia.com>
Reviewed-by: Mark Bloch <mbloch@...dia.com>
Signed-off-by: Edward Srouji <edwards@...dia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/lag/lag.c | 27 +++++++++++++++++++++++
 include/linux/mlx5/driver.h                       |  2 +-
 2 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag/lag.c b/drivers/net/ethernet/mellanox/mlx5/core/lag/lag.c
index 0b931aaecef8..187ea8219ca9 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag/lag.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag/lag.c
@@ -1464,6 +1464,33 @@ static void mlx5_lag_update_tracker_speed(struct lag_tracker *tracker,
 		tracker->bond_speed_mbps = lksettings.base.speed;
 }
 
+/* Returns speed in Mbps. */
+int mlx5_lag_query_bond_speed(struct mlx5_core_dev *mdev, u32 *speed)
+{
+	struct mlx5_lag *ldev;
+	unsigned long flags;
+	int ret = 0;
+
+	spin_lock_irqsave(&lag_lock, flags);
+	ldev = mlx5_lag_dev(mdev);
+	if (!ldev) {
+		ret = -ENODEV;
+		goto unlock;
+	}
+
+	*speed = ldev->tracker.bond_speed_mbps;
+
+	if (*speed == SPEED_UNKNOWN) {
+		mlx5_core_dbg(mdev, "Bond speed is unknown\n");
+		ret = -EINVAL;
+	}
+
+unlock:
+	spin_unlock_irqrestore(&lag_lock, flags);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(mlx5_lag_query_bond_speed);
+
 /* this handler is always registered to netdev events */
 static int mlx5_lag_netdev_event(struct notifier_block *this,
 				 unsigned long event, void *ptr)
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 9e0ab3cfab73..e2d067b1e67b 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -1149,7 +1149,7 @@ int mlx5_cmd_destroy_vport_lag(struct mlx5_core_dev *dev);
 bool mlx5_lag_is_roce(struct mlx5_core_dev *dev);
 bool mlx5_lag_is_sriov(struct mlx5_core_dev *dev);
 bool mlx5_lag_is_active(struct mlx5_core_dev *dev);
-int mlx5_lag_query_bond_speed(struct net_device *bond_dev, u32 *speed);
+int mlx5_lag_query_bond_speed(struct mlx5_core_dev *dev, u32 *speed);
 bool mlx5_lag_mode_is_hash(struct mlx5_core_dev *dev);
 bool mlx5_lag_is_master(struct mlx5_core_dev *dev);
 bool mlx5_lag_is_shared_fdb(struct mlx5_core_dev *dev);

-- 
2.47.1