netdev - [PATCH net-next V4 07/12] net/mlx5_core: Implement get/set port status

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Message-Id: <1431867743-13149-8-git-send-email-amirv@mellanox.com>
Date:	Sun, 17 May 2015 16:02:18 +0300
From:	Amir Vadai <amirv@...lanox.com>
To:	"David S. Miller" <davem@...emloft.net>
Cc:	netdev@...r.kernel.org, Or Gerlitz <ogerlitz@...lanox.com>,
	Amir Vadai <amirv@...lanox.com>, Tal Alon <talal@...lanox.com>,
	Achiad Shochat <achiad@...lanox.com>,
	Saeed Mahameed <saeedm@...lanox.com>,
	Rana Shahout <ranas@...lanox.com>
Subject: [PATCH net-next V4 07/12] net/mlx5_core: Implement get/set port status

From: Rana Shahout <ranas@...lanox.com>

Implemet get/set port status low level functions to be exposed by the
netdev.

Signed-off-by: Rana Shahout <ranas@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
Signed-off-by: Amir Vadai <amirv@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/port.c | 32 ++++++++++++++++++++++++++
 include/linux/mlx5/driver.h                    |  8 +++++++
 2 files changed, 40 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/port.c b/drivers/net/ethernet/mellanox/mlx5/core/port.c
index 6e2d99c..742a6fb 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/port.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/port.c
@@ -179,3 +179,35 @@ int mlx5_set_port_proto(struct mlx5_core_dev *dev, u32 proto_admin,
 	return err;
 }
 EXPORT_SYMBOL_GPL(mlx5_set_port_proto);
+
+int mlx5_set_port_status(struct mlx5_core_dev *dev,
+			 enum mlx5_port_status status)
+{
+	u32 in[MLX5_ST_SZ_DW(paos_reg)];
+	u32 out[MLX5_ST_SZ_DW(paos_reg)];
+
+	memset(in, 0, sizeof(in));
+
+	MLX5_SET(paos_reg, in, admin_status, status);
+	MLX5_SET(paos_reg, in, ase, 1);
+
+	return mlx5_core_access_reg(dev, in, sizeof(in), out,
+				    sizeof(out), MLX5_REG_PAOS, 0, 1);
+}
+
+int mlx5_query_port_status(struct mlx5_core_dev *dev, u8 *status)
+{
+	u32 in[MLX5_ST_SZ_DW(paos_reg)];
+	u32 out[MLX5_ST_SZ_DW(paos_reg)];
+	int err;
+
+	memset(in, 0, sizeof(in));
+
+	err = mlx5_core_access_reg(dev, in, sizeof(in), out,
+				   sizeof(out), MLX5_REG_PAOS, 0, 0);
+	if (err)
+		return err;
+
+	*status = MLX5_GET(paos_reg, out, oper_status);
+	return err;
+}
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 266d549..6438444 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -149,6 +149,11 @@ enum mlx5_dev_event {
 	MLX5_DEV_EVENT_CLIENT_REREG,
 };
 
+enum mlx5_port_status {
+	MLX5_PORT_UP        = 1 << 1,
+	MLX5_PORT_DOWN      = 1 << 2,
+};
+
 struct mlx5_uuar_info {
 	struct mlx5_uar	       *uars;
 	int			num_uars;
@@ -701,6 +706,9 @@ int mlx5_query_port_proto_admin(struct mlx5_core_dev *dev,
 				u32 *proto_admin, int proto_mask);
 int mlx5_set_port_proto(struct mlx5_core_dev *dev, u32 proto_admin,
 			int proto_mask);
+int mlx5_set_port_status(struct mlx5_core_dev *dev,
+			 enum mlx5_port_status status);
+int mlx5_query_port_status(struct mlx5_core_dev *dev, u8 *status);
 
 int mlx5_debug_eq_add(struct mlx5_core_dev *dev, struct mlx5_eq *eq);
 void mlx5_debug_eq_remove(struct mlx5_core_dev *dev, struct mlx5_eq *eq);
-- 
1.9.3

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