Commit a9c8336f authored by Shalom Toledo's avatar Shalom Toledo Committed by David S. Miller
Browse files

mlxsw: core: Add support for devlink info command 



Expose the following ASIC information via devlink info command:
  - Driver name
  - Hardware revision
  - Firmware PSID
  - Running firmware version

Standard output example:
  $ devlink dev info pci/0000:03:00.0
  pci/0000:03:00.0:
    driver mlxsw_spectrum
    versions:
        fixed:
          hw.revision A0
          fw.psid MT_2750110033
        running:
          fw.version 13.1910.622

Signed-off-by: default avatarShalom Toledo <shalomt@mellanox.com>
Acked-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8d77d4bf

drivers/net/ethernet/mellanox/mlxsw/core.c

+41 −0
Original line number Diff line number Diff line
@@ -934,6 +934,46 @@ mlxsw_devlink_sb_occ_tc_port_bind_get(struct devlink_port *devlink_port, 
						     pool_type, p_cur, p_max);

}



static int

mlxsw_devlink_info_get(struct devlink *devlink, struct devlink_info_req *req,

		       struct netlink_ext_ack *extack)

{

	struct mlxsw_core *mlxsw_core = devlink_priv(devlink);

	char fw_info_psid[MLXSW_REG_MGIR_FW_INFO_PSID_SIZE];

	u32 hw_rev, fw_major, fw_minor, fw_sub_minor;

	char mgir_pl[MLXSW_REG_MGIR_LEN];

	char buf[32];

	int err;



	err = devlink_info_driver_name_put(req,

					   mlxsw_core->bus_info->device_kind);

	if (err)

		return err;



	mlxsw_reg_mgir_pack(mgir_pl);

	err = mlxsw_reg_query(mlxsw_core, MLXSW_REG(mgir), mgir_pl);

	if (err)

		return err;

	mlxsw_reg_mgir_unpack(mgir_pl, &hw_rev, fw_info_psid, &fw_major,

			      &fw_minor, &fw_sub_minor);



	sprintf(buf, "%X", hw_rev);

	err = devlink_info_version_fixed_put(req, "hw.revision", buf);

	if (err)

		return err;



	err = devlink_info_version_fixed_put(req, "fw.psid", fw_info_psid);

	if (err)

		return err;



	sprintf(buf, "%d.%d.%d", fw_major, fw_minor, fw_sub_minor);

	err = devlink_info_version_running_put(req, "fw.version", buf);

	if (err)

		return err;



	return 0;

}



static int mlxsw_devlink_core_bus_device_reload(struct devlink *devlink,

						struct netlink_ext_ack *extack)

{
@@ -968,6 +1008,7 @@ static const struct devlink_ops mlxsw_devlink_ops = { 
	.sb_occ_max_clear		= mlxsw_devlink_sb_occ_max_clear,

	.sb_occ_port_pool_get		= mlxsw_devlink_sb_occ_port_pool_get,

	.sb_occ_tc_port_bind_get	= mlxsw_devlink_sb_occ_tc_port_bind_get,

	.info_get			= mlxsw_devlink_info_get,

};



static int

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