1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22#if defined(_KERNEL) && defined(HAVE_QAT)
23#include <sys/zfs_context.h>
24#include <sys/qat.h>
25
26qat_stats_t qat_stats = {
27	{ "comp_requests",			KSTAT_DATA_UINT64 },
28	{ "comp_total_in_bytes",		KSTAT_DATA_UINT64 },
29	{ "comp_total_out_bytes",		KSTAT_DATA_UINT64 },
30	{ "decomp_requests",			KSTAT_DATA_UINT64 },
31	{ "decomp_total_in_bytes",		KSTAT_DATA_UINT64 },
32	{ "decomp_total_out_bytes",		KSTAT_DATA_UINT64 },
33	{ "dc_fails",				KSTAT_DATA_UINT64 },
34	{ "encrypt_requests",			KSTAT_DATA_UINT64 },
35	{ "encrypt_total_in_bytes",		KSTAT_DATA_UINT64 },
36	{ "encrypt_total_out_bytes",		KSTAT_DATA_UINT64 },
37	{ "decrypt_requests",			KSTAT_DATA_UINT64 },
38	{ "decrypt_total_in_bytes",		KSTAT_DATA_UINT64 },
39	{ "decrypt_total_out_bytes",		KSTAT_DATA_UINT64 },
40	{ "crypt_fails",			KSTAT_DATA_UINT64 },
41	{ "cksum_requests",			KSTAT_DATA_UINT64 },
42	{ "cksum_total_in_bytes",		KSTAT_DATA_UINT64 },
43	{ "cksum_fails",			KSTAT_DATA_UINT64 },
44};
45
46static kstat_t *qat_ksp = NULL;
47
48CpaStatus
49qat_mem_alloc_contig(void **pp_mem_addr, Cpa32U size_bytes)
50{
51	*pp_mem_addr = kmalloc(size_bytes, GFP_KERNEL);
52	if (*pp_mem_addr == NULL)
53		return (CPA_STATUS_RESOURCE);
54	return (CPA_STATUS_SUCCESS);
55}
56
57void
58qat_mem_free_contig(void **pp_mem_addr)
59{
60	if (*pp_mem_addr != NULL) {
61		kfree(*pp_mem_addr);
62		*pp_mem_addr = NULL;
63	}
64}
65
66int
67qat_init(void)
68{
69	qat_ksp = kstat_create("zfs", 0, "qat", "misc",
70	    KSTAT_TYPE_NAMED, sizeof (qat_stats) / sizeof (kstat_named_t),
71	    KSTAT_FLAG_VIRTUAL);
72	if (qat_ksp != NULL) {
73		qat_ksp->ks_data = &qat_stats;
74		kstat_install(qat_ksp);
75	}
76
77	/*
78	 * Just set the disable flag when qat init failed, qat can be
79	 * turned on again in post-process after zfs module is loaded, e.g.:
80	 * echo 0 > /sys/module/zfs/parameters/zfs_qat_compress_disable
81	 */
82	if (qat_dc_init() != 0)
83		zfs_qat_compress_disable = 1;
84
85	if (qat_cy_init() != 0) {
86		zfs_qat_checksum_disable = 1;
87		zfs_qat_encrypt_disable = 1;
88	}
89
90	return (0);
91}
92
93void
94qat_fini(void)
95{
96	if (qat_ksp != NULL) {
97		kstat_delete(qat_ksp);
98		qat_ksp = NULL;
99	}
100
101	qat_cy_fini();
102	qat_dc_fini();
103}
104
105#endif
106