xge_hal_mgmt_reg_read
xge_hal_mgmt_reg_read(xge_hal_device_h devh, int bar_id, unsigned int offset,
status = xge_hal_mgmt_reg_read(devh, 1, offset, &retval);
status = xge_hal_mgmt_reg_read(hldev, 0, offset*8, &retval);
status = xge_hal_mgmt_reg_read(devh, 0, offset, &retval);