1 // SPDX-License-Identifier: CDDL-1.0
2 /*
3 * CDDL HEADER START
4 *
5 * The contents of this file are subject to the terms of the
6 * Common Development and Distribution License (the "License").
7 * You may not use this file except in compliance with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or https://opensource.org/licenses/CDDL-1.0.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22
23 #if defined(_KERNEL) && defined(HAVE_QAT)
24 #include <sys/zfs_context.h>
25 #include <sys/qat.h>
26
27 qat_stats_t qat_stats = {
28 { "comp_requests", KSTAT_DATA_UINT64 },
29 { "comp_total_in_bytes", KSTAT_DATA_UINT64 },
30 { "comp_total_out_bytes", KSTAT_DATA_UINT64 },
31 { "decomp_requests", KSTAT_DATA_UINT64 },
32 { "decomp_total_in_bytes", KSTAT_DATA_UINT64 },
33 { "decomp_total_out_bytes", KSTAT_DATA_UINT64 },
34 { "dc_fails", KSTAT_DATA_UINT64 },
35 { "encrypt_requests", KSTAT_DATA_UINT64 },
36 { "encrypt_total_in_bytes", KSTAT_DATA_UINT64 },
37 { "encrypt_total_out_bytes", KSTAT_DATA_UINT64 },
38 { "decrypt_requests", KSTAT_DATA_UINT64 },
39 { "decrypt_total_in_bytes", KSTAT_DATA_UINT64 },
40 { "decrypt_total_out_bytes", KSTAT_DATA_UINT64 },
41 { "crypt_fails", KSTAT_DATA_UINT64 },
42 { "cksum_requests", KSTAT_DATA_UINT64 },
43 { "cksum_total_in_bytes", KSTAT_DATA_UINT64 },
44 { "cksum_fails", KSTAT_DATA_UINT64 },
45 };
46
47 static kstat_t *qat_ksp = NULL;
48
49 CpaStatus
qat_mem_alloc_contig(void ** pp_mem_addr,Cpa32U size_bytes)50 qat_mem_alloc_contig(void **pp_mem_addr, Cpa32U size_bytes)
51 {
52 *pp_mem_addr = kmalloc(size_bytes, GFP_KERNEL);
53 if (*pp_mem_addr == NULL)
54 return (CPA_STATUS_RESOURCE);
55 return (CPA_STATUS_SUCCESS);
56 }
57
58 void
qat_mem_free_contig(void ** pp_mem_addr)59 qat_mem_free_contig(void **pp_mem_addr)
60 {
61 if (*pp_mem_addr != NULL) {
62 kfree(*pp_mem_addr);
63 *pp_mem_addr = NULL;
64 }
65 }
66
67 int
qat_init(void)68 qat_init(void)
69 {
70 qat_ksp = kstat_create("zfs", 0, "qat", "misc",
71 KSTAT_TYPE_NAMED, sizeof (qat_stats) / sizeof (kstat_named_t),
72 KSTAT_FLAG_VIRTUAL);
73 if (qat_ksp != NULL) {
74 qat_ksp->ks_data = &qat_stats;
75 kstat_install(qat_ksp);
76 }
77
78 /*
79 * Just set the disable flag when qat init failed, qat can be
80 * turned on again in post-process after zfs module is loaded, e.g.:
81 * echo 0 > /sys/module/zfs/parameters/zfs_qat_compress_disable
82 */
83 if (qat_dc_init() != 0)
84 zfs_qat_compress_disable = 1;
85
86 if (qat_cy_init() != 0) {
87 zfs_qat_checksum_disable = 1;
88 zfs_qat_encrypt_disable = 1;
89 }
90
91 return (0);
92 }
93
94 void
qat_fini(void)95 qat_fini(void)
96 {
97 if (qat_ksp != NULL) {
98 kstat_delete(qat_ksp);
99 qat_ksp = NULL;
100 }
101
102 qat_cy_fini();
103 qat_dc_fini();
104 }
105
106 #endif
107