freebsd-skq/sys/crypto/ccp/ccp_lsb.h

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Add ccp(4): experimental driver for AMD Crypto Co-Processor * Registers TRNG source for random(4) * Finds available queues, LSBs; allocates static objects * Allocates a shared MSI-X for all queues. The hardware does not have separate interrupts per queue. Working interrupt mode driver. * Computes SHA hashes, HMAC. Passes cryptotest.py, cryptocheck tests. * Does AES-CBC, CTR mode, and XTS. cryptotest.py and cryptocheck pass. * Support for "authenc" (AES + HMAC). (SHA1 seems to result in "unaligned" cleartext inputs from cryptocheck -- which the engine cannot handle. SHA2 seems to work fine.) * GCM passes for block-multiple AAD, input lengths Largely based on ccr(4), part of cxgbe(4). Rough performance averages on AMD Ryzen 1950X (4kB buffer): aesni: SHA1: ~8300 Mb/s SHA256: ~8000 Mb/s ccp: ~630 Mb/s SHA256: ~660 Mb/s SHA512: ~700 Mb/s cryptosoft: ~1800 Mb/s SHA256: ~1800 Mb/s SHA512: ~2700 Mb/s As you can see, performance is poor in comparison to aesni(4) and even cryptosoft (due to high setup cost). At a larger buffer size (128kB), throughput is a little better (but still worse than aesni(4)): aesni: SHA1:~10400 Mb/s SHA256: ~9950 Mb/s ccp: ~2200 Mb/s SHA256: ~2600 Mb/s SHA512: ~3800 Mb/s cryptosoft: ~1750 Mb/s SHA256: ~1800 Mb/s SHA512: ~2700 Mb/s AES performance has a similar story: aesni: 4kB: ~11250 Mb/s 128kB: ~11250 Mb/s ccp: ~350 Mb/s 128kB: ~4600 Mb/s cryptosoft: ~1750 Mb/s 128kB: ~1700 Mb/s This driver is EXPERIMENTAL. You should verify cryptographic results on typical and corner case inputs from your application against a known- good implementation. Sponsored by: Dell EMC Isilon Differential Revision: https://reviews.freebsd.org/D12723
2018-01-18 22:01:30 +00:00
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2017 Conrad Meyer <cem@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#pragma once
#define LSB_ENTRY_SIZE 32 /* bytes, or 256 bits */
#define LSB_REGION_LENGTH 16 /* entries */
/* For now, just statically allocate some LSB entries for specific purposes. */
#define LSB_ENTRY_KEY 0
#define LSB_ENTRY_IV 2
#define LSB_ENTRY_SHA 4
#define LSB_ENTRY_GHASH 6
#define LSB_ENTRY_GHASH_IN 7
void ccp_queue_decode_lsb_regions(struct ccp_softc *sc, uint64_t lsbmask,
unsigned queue);
void ccp_assign_lsb_regions(struct ccp_softc *sc, uint64_t lsbmask);