linux/drivers/net/ethernet/intel/igc/igc_diag.h

/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c)  2020 Intel Corporation */

bool igc_reg_test(struct igc_adapter *adapter, u64 *data);
bool igc_eeprom_test(struct igc_adapter *adapter, u64 *data);
bool igc_link_test(struct igc_adapter *adapter, u64 *data);

struct igc_reg_test { … };

/* In the hardware, registers are laid out either singly, in arrays
 * spaced 0x40 bytes apart, or in contiguous tables.  We assume
 * most tests take place on arrays or single registers (handled
 * as a single-element array) and special-case the tables.
 * Table tests are always pattern tests.
 *
 * We also make provision for some required setup steps by specifying
 * registers to be written without any read-back testing.
 */

#define PATTERN_TEST …
#define SET_READ_TEST …
#define TABLE32_TEST …
#define TABLE64_TEST_LO …
#define TABLE64_TEST_HI …