ioat_test.h revision 302408
1/*-
2 * Copyright (C) 2012 Intel Corporation
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27__FBSDID("$FreeBSD: stable/11/sys/dev/ioat/ioat_test.h 292229 2015-12-14 22:02:01Z cem $");
28
29#ifndef __IOAT_TEST_H__
30#define __IOAT_TEST_H__
31
32enum ioat_res {
33	IOAT_TEST_OK = 0,
34	IOAT_TEST_NO_DMA_ENGINE,
35	IOAT_TEST_NO_MEMORY,
36	IOAT_TEST_MISCOMPARE,
37	IOAT_TEST_INVALID_INPUT,
38	IOAT_NUM_RES
39};
40
41enum ioat_test_kind {
42	IOAT_TEST_FILL = 0,
43	IOAT_TEST_DMA,
44	IOAT_TEST_RAW_DMA,
45	IOAT_TEST_DMA_8K,
46	IOAT_TEST_MEMCPY,
47	IOAT_NUM_TESTKINDS
48};
49
50struct test_transaction;
51
52struct ioat_test {
53	volatile uint32_t status[IOAT_NUM_RES];
54	uint32_t channel_index;
55
56	enum ioat_test_kind testkind;
57
58	/* HW max of 1MB */
59	uint32_t buffer_size;
60	uint32_t chain_depth;
61	uint32_t transactions;
62
63	/*
64	 * If non-zero, duration is time in ms;
65	 * If zero, bounded by 'transactions' above.
66	 */
67	uint32_t duration;
68
69	/* If true, check for miscompares after a copy. */
70	bool verify;
71
72	/* DMA directly to/from some memory address */
73	uint64_t raw_target;
74	void *raw_vtarget;
75	bool raw_write;
76	bool raw_is_virtual;
77
78	bool zero_stats;
79	/* Configure coalesce period */
80	uint16_t coalesce_period;
81
82	/* Internal usage -- not test inputs */
83	TAILQ_HEAD(, test_transaction) free_q;
84	TAILQ_HEAD(, test_transaction) pend_q;
85	volatile bool too_late;
86};
87
88#define	IOAT_DMATEST	_IOWR('i', 0, struct ioat_test)
89
90#endif /* __IOAT_TEST_H__ */
91