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Commit a124d13e authored by Majd Dibbiny's avatar Majd Dibbiny Committed by David S. Miller
Browse files

net/mlx5_core: Add more query port helpers 



Add the following helpers:

1. mlx5_query_port_proto_oper -- queries the port speed port mask
2. mlx5_query_port_link_width_oper - queries the port link with bitmask
3. mlx5_query_port_vl_hw_cap - queries the Virtual Lanes supported on this port

These helpers will be used from the IB driver when working in ISSI > 0 mode.

Signed-off-by: default avatarMajd Dibbiny <majd@mellanox.com>
Signed-off-by: default avatarOr Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a05bdefa

drivers/net/ethernet/mellanox/mlx5/core/port.c

+67 −0
Original line number Diff line number Diff line
@@ -158,6 +158,42 @@ int mlx5_query_port_proto_admin(struct mlx5_core_dev *dev, 
}

EXPORT_SYMBOL_GPL(mlx5_query_port_proto_admin);



int mlx5_query_port_link_width_oper(struct mlx5_core_dev *dev,

				    u8 *link_width_oper, u8 local_port)

{

	u32 out[MLX5_ST_SZ_DW(ptys_reg)];

	int err;



	err = mlx5_query_port_ptys(dev, out, sizeof(out), MLX5_PTYS_IB, local_port);

	if (err)

		return err;



	*link_width_oper = MLX5_GET(ptys_reg, out, ib_link_width_oper);



	return 0;

}

EXPORT_SYMBOL_GPL(mlx5_query_port_link_width_oper);



int mlx5_query_port_proto_oper(struct mlx5_core_dev *dev,

			       u8 *proto_oper, int proto_mask,

			       u8 local_port)

{

	u32 out[MLX5_ST_SZ_DW(ptys_reg)];

	int err;



	err = mlx5_query_port_ptys(dev, out, sizeof(out), proto_mask, local_port);

	if (err)

		return err;



	if (proto_mask == MLX5_PTYS_EN)

		*proto_oper = MLX5_GET(ptys_reg, out, eth_proto_oper);

	else

		*proto_oper = MLX5_GET(ptys_reg, out, ib_proto_oper);



	return 0;

}

EXPORT_SYMBOL_GPL(mlx5_query_port_proto_oper);



int mlx5_set_port_proto(struct mlx5_core_dev *dev, u32 proto_admin,

			int proto_mask)

{
@@ -267,3 +303,34 @@ int mlx5_query_port_oper_mtu(struct mlx5_core_dev *dev, int *oper_mtu, 
	return mlx5_query_port_mtu(dev, NULL, NULL, oper_mtu, local_port);

}

EXPORT_SYMBOL_GPL(mlx5_query_port_oper_mtu);



static int mlx5_query_port_pvlc(struct mlx5_core_dev *dev, u32 *pvlc,

				int pvlc_size,  u8 local_port)

{

	u32 in[MLX5_ST_SZ_DW(pvlc_reg)];

	int err;



	memset(in, 0, sizeof(in));

	MLX5_SET(ptys_reg, in, local_port, local_port);



	err = mlx5_core_access_reg(dev, in, sizeof(in), pvlc,

				   pvlc_size, MLX5_REG_PVLC, 0, 0);



	return err;

}



int mlx5_query_port_vl_hw_cap(struct mlx5_core_dev *dev,

			      u8 *vl_hw_cap, u8 local_port)

{

	u32 out[MLX5_ST_SZ_DW(pvlc_reg)];

	int err;



	err = mlx5_query_port_pvlc(dev, out, sizeof(out), local_port);

	if (err)

		return err;



	*vl_hw_cap = MLX5_GET(pvlc_reg, out, vl_hw_cap);



	return 0;

}

EXPORT_SYMBOL_GPL(mlx5_query_port_vl_hw_cap);

include/linux/mlx5/driver.h

+8 −0
Original line number Diff line number Diff line
@@ -107,6 +107,7 @@ enum { 
	MLX5_REG_PUDE		 = 0x5009,

	MLX5_REG_PMPE		 = 0x5010,

	MLX5_REG_PELC		 = 0x500e,

	MLX5_REG_PVLC		 = 0x500f,

	MLX5_REG_PMLP		 = 0, /* TBD */

	MLX5_REG_NODE_DESC	 = 0x6001,

	MLX5_REG_HOST_ENDIANNESS = 0x7004,
@@ -744,6 +745,11 @@ int mlx5_query_port_proto_cap(struct mlx5_core_dev *dev, 
			      u32 *proto_cap, int proto_mask);

int mlx5_query_port_proto_admin(struct mlx5_core_dev *dev,

				u32 *proto_admin, int proto_mask);

int mlx5_query_port_link_width_oper(struct mlx5_core_dev *dev,

				    u8 *link_width_oper, u8 local_port);

int mlx5_query_port_proto_oper(struct mlx5_core_dev *dev,

			       u8 *proto_oper, int proto_mask,

			       u8 local_port);

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,
@@ -755,6 +761,8 @@ int mlx5_query_port_max_mtu(struct mlx5_core_dev *dev, int *max_mtu, 
			    u8 local_port);

int mlx5_query_port_oper_mtu(struct mlx5_core_dev *dev, int *oper_mtu,

			     u8 local_port);

int mlx5_query_port_vl_hw_cap(struct mlx5_core_dev *dev,

			      u8 *vl_hw_cap, u8 local_port);



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);