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zfs/module/icp/include/modes/gcm_impl.h

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Add support for selecting encryption backend - Add two new module parameters to icp (icp_aes_impl, icp_gcm_impl) that control the crypto implementation. At the moment there is a choice between generic and aesni (on platforms that support it). - This enables support for AES-NI and PCLMULQDQ-NI on AMD Family 15h (bulldozer) and newer CPUs (zen). - Modify aes_key_t to track what implementation it was generated with as key schedules generated with various implementations are not necessarily interchangable. Reviewed by: Gvozden Neskovic <neskovic@gmail.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tom Caputi <tcaputi@datto.com> Reviewed-by: Richard Laager <rlaager@wiktel.com> Signed-off-by: Nathaniel R. Lewis <linux.robotdude@gmail.com> Closes #7102 Closes #7103
2018-08-02 18:59:24 +00:00
/*
* 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
*/
/*
* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
*/
#ifndef _GCM_IMPL_H
#define _GCM_IMPL_H
/*
* GCM function dispatcher.
*/
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/zfs_context.h>
#include <sys/crypto/common.h>
/*
Minor style cleanup Resolve an assortment of style inconsistencies including use of white space, typos, capitalization, and line wrapping. There is no functional change. Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: George Melikov <mail@gmelikov.ru> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #9030
2019-07-17 00:22:31 +00:00
* Methods used to define GCM implementation
Add support for selecting encryption backend - Add two new module parameters to icp (icp_aes_impl, icp_gcm_impl) that control the crypto implementation. At the moment there is a choice between generic and aesni (on platforms that support it). - This enables support for AES-NI and PCLMULQDQ-NI on AMD Family 15h (bulldozer) and newer CPUs (zen). - Modify aes_key_t to track what implementation it was generated with as key schedules generated with various implementations are not necessarily interchangable. Reviewed by: Gvozden Neskovic <neskovic@gmail.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tom Caputi <tcaputi@datto.com> Reviewed-by: Richard Laager <rlaager@wiktel.com> Signed-off-by: Nathaniel R. Lewis <linux.robotdude@gmail.com> Closes #7102 Closes #7103
2018-08-02 18:59:24 +00:00
*
* @gcm_mul_f Perform carry-less multiplication
* @gcm_will_work_f Function tests whether implementation will function
*/
Minor style cleanup Resolve an assortment of style inconsistencies including use of white space, typos, capitalization, and line wrapping. There is no functional change. Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: George Melikov <mail@gmelikov.ru> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #9030
2019-07-17 00:22:31 +00:00
typedef void (*gcm_mul_f)(uint64_t *, uint64_t *, uint64_t *);
Add support for selecting encryption backend - Add two new module parameters to icp (icp_aes_impl, icp_gcm_impl) that control the crypto implementation. At the moment there is a choice between generic and aesni (on platforms that support it). - This enables support for AES-NI and PCLMULQDQ-NI on AMD Family 15h (bulldozer) and newer CPUs (zen). - Modify aes_key_t to track what implementation it was generated with as key schedules generated with various implementations are not necessarily interchangable. Reviewed by: Gvozden Neskovic <neskovic@gmail.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tom Caputi <tcaputi@datto.com> Reviewed-by: Richard Laager <rlaager@wiktel.com> Signed-off-by: Nathaniel R. Lewis <linux.robotdude@gmail.com> Closes #7102 Closes #7103
2018-08-02 18:59:24 +00:00
typedef boolean_t (*gcm_will_work_f)(void);
#define GCM_IMPL_NAME_MAX (16)
typedef struct gcm_impl_ops {
gcm_mul_f mul;
gcm_will_work_f is_supported;
char name[GCM_IMPL_NAME_MAX];
} gcm_impl_ops_t;
extern const gcm_impl_ops_t gcm_generic_impl;
#if defined(__x86_64) && defined(HAVE_PCLMULQDQ)
extern const gcm_impl_ops_t gcm_pclmulqdq_impl;
#endif
/*
* Initializes fastest implementation
*/
void gcm_impl_init(void);
/*
* Get selected aes implementation
*/
struct gcm_impl_ops *gcm_impl_get_ops(void);
#ifdef __cplusplus
}
#endif
#endif /* _GCM_IMPL_H */