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net/mlx4_core: Expose physical port id as PF/VF capability

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Add the infrastructure needed to support ndo_get_phys_port_id which
allows users to identify to which physical port a net-device is connected
to by reading a unique port id.
This will work for VFs and PFs.
The driver uses a new device capability - phys_port_id, The PF driver
reads the port phys_port_id from Firmware and stores it. The VF driver
reads the port phys_port_id from the PF using QUERY_FUNC_CAP command.

Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hadar Hen Zion 2013-12-19 21:20:12 +02:00 • committed by David S. Miller
commit 8e1a28e8e6
4 changed files with 53 additions and 0 deletions
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2
include/linux/mlx4/device.h
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@ -454,6 +454,7 @@ struct mlx4_caps {
u32 userspace_caps; /* userspace must be aware of these */
u32 function_caps; /* VFs must be aware of these */
u16 hca_core_clock;
u64 phys_port_id[MLX4_MAX_PORTS + 1];
};
struct mlx4_buf_list {
@ -1113,6 +1114,7 @@ int mlx4_assign_eq(struct mlx4_dev *dev, char *name, struct cpu_rmap *rmap,
int *vector);
void mlx4_release_eq(struct mlx4_dev *dev, int vec);
int mlx4_get_phys_port_id(struct mlx4_dev *dev);
int mlx4_wol_read(struct mlx4_dev *dev, u64 *config, int port);
int mlx4_wol_write(struct mlx4_dev *dev, u64 config, int port);