diff options
Diffstat (limited to 'module/os/linux/zfs/qat.c')
| -rw-r--r-- | module/os/linux/zfs/qat.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/module/os/linux/zfs/qat.c b/module/os/linux/zfs/qat.c new file mode 100644 index 000000000..a6f024cb4 --- /dev/null +++ b/module/os/linux/zfs/qat.c @@ -0,0 +1,105 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ + +#if defined(_KERNEL) && defined(HAVE_QAT) +#include <sys/zfs_context.h> +#include "qat.h" + +qat_stats_t qat_stats = { + { "comp_requests", KSTAT_DATA_UINT64 }, + { "comp_total_in_bytes", KSTAT_DATA_UINT64 }, + { "comp_total_out_bytes", KSTAT_DATA_UINT64 }, + { "decomp_requests", KSTAT_DATA_UINT64 }, + { "decomp_total_in_bytes", KSTAT_DATA_UINT64 }, + { "decomp_total_out_bytes", KSTAT_DATA_UINT64 }, + { "dc_fails", KSTAT_DATA_UINT64 }, + { "encrypt_requests", KSTAT_DATA_UINT64 }, + { "encrypt_total_in_bytes", KSTAT_DATA_UINT64 }, + { "encrypt_total_out_bytes", KSTAT_DATA_UINT64 }, + { "decrypt_requests", KSTAT_DATA_UINT64 }, + { "decrypt_total_in_bytes", KSTAT_DATA_UINT64 }, + { "decrypt_total_out_bytes", KSTAT_DATA_UINT64 }, + { "crypt_fails", KSTAT_DATA_UINT64 }, + { "cksum_requests", KSTAT_DATA_UINT64 }, + { "cksum_total_in_bytes", KSTAT_DATA_UINT64 }, + { "cksum_fails", KSTAT_DATA_UINT64 }, +}; + +static kstat_t *qat_ksp = NULL; + +CpaStatus +qat_mem_alloc_contig(void **pp_mem_addr, Cpa32U size_bytes) +{ + *pp_mem_addr = kmalloc(size_bytes, GFP_KERNEL); + if (*pp_mem_addr == NULL) + return (CPA_STATUS_RESOURCE); + return (CPA_STATUS_SUCCESS); +} + +void +qat_mem_free_contig(void **pp_mem_addr) +{ + if (*pp_mem_addr != NULL) { + kfree(*pp_mem_addr); + *pp_mem_addr = NULL; + } +} + +int +qat_init(void) +{ + qat_ksp = kstat_create("zfs", 0, "qat", "misc", + KSTAT_TYPE_NAMED, sizeof (qat_stats) / sizeof (kstat_named_t), + KSTAT_FLAG_VIRTUAL); + if (qat_ksp != NULL) { + qat_ksp->ks_data = &qat_stats; + kstat_install(qat_ksp); + } + + /* + * Just set the disable flag when qat init failed, qat can be + * turned on again in post-process after zfs module is loaded, e.g.: + * echo 0 > /sys/module/zfs/parameters/zfs_qat_compress_disable + */ + if (qat_dc_init() != 0) + zfs_qat_compress_disable = 1; + + if (qat_cy_init() != 0) { + zfs_qat_checksum_disable = 1; + zfs_qat_encrypt_disable = 1; + } + + return (0); +} + +void +qat_fini(void) +{ + if (qat_ksp != NULL) { + kstat_delete(qat_ksp); + qat_ksp = NULL; + } + + qat_cy_fini(); + qat_dc_fini(); +} + +#endif |