632 lines
18 KiB
C
632 lines
18 KiB
C
|
/*
|
||
|
|
* 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
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This file represents the QAT implementation of checksums and encryption.
|
||
|
|
* Internally, QAT shares the same cryptographic instances for both of these
|
||
|
|
* operations, so the code has been combined here. QAT data compression uses
|
||
|
|
* compression instances, so that code is separated into qat_compress.c
|
||
|
|
*/
|
||
|
|
|
||
|
|
#if defined(_KERNEL) && defined(HAVE_QAT)
|
||
|
|
#include <linux/slab.h>
|
||
|
|
#include <linux/vmalloc.h>
|
||
|
|
#include <linux/pagemap.h>
|
||
|
|
#include <linux/completion.h>
|
||
|
|
#include <linux/mod_compat.h>
|
||
|
|
#include <sys/zfs_context.h>
|
||
|
|
#include <sys/zio_crypt.h>
|
||
|
|
#include "lac/cpa_cy_im.h"
|
||
|
|
#include "lac/cpa_cy_common.h"
|
||
|
|
#include <sys/qat.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Max instances in a QAT device, each instance is a channel to submit
|
||
|
|
* jobs to QAT hardware, this is only for pre-allocating instances
|
||
|
|
* and session arrays; the actual number of instances are defined in
|
||
|
|
* the QAT driver's configure file.
|
||
|
|
*/
|
||
|
|
#define QAT_CRYPT_MAX_INSTANCES 48
|
||
|
|
|
||
|
|
#define MAX_PAGE_NUM 1024
|
||
|
|
|
||
|
|
static Cpa32U inst_num = 0;
|
||
|
|
static Cpa16U num_inst = 0;
|
||
|
|
static CpaInstanceHandle cy_inst_handles[QAT_CRYPT_MAX_INSTANCES];
|
||
|
|
static boolean_t qat_cy_init_done = B_FALSE;
|
||
|
|
int zfs_qat_encrypt_disable = 0;
|
||
|
|
int zfs_qat_checksum_disable = 0;
|
||
|
|
|
||
|
|
typedef struct cy_callback {
|
||
|
|
CpaBoolean verify_result;
|
||
|
|
struct completion complete;
|
||
|
|
} cy_callback_t;
|
||
|
|
|
||
|
|
static void
|
||
|
|
symcallback(void *p_callback, CpaStatus status, const CpaCySymOp operation,
|
||
|
|
void *op_data, CpaBufferList *buf_list_dst, CpaBoolean verify)
|
||
|
|
{
|
||
|
|
cy_callback_t *cb = p_callback;
|
||
|
|
|
||
|
|
if (cb != NULL) {
|
||
|
|
/* indicate that the function has been called */
|
||
|
|
cb->verify_result = verify;
|
||
|
|
complete(&cb->complete);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
boolean_t
|
||
|
|
qat_crypt_use_accel(size_t s_len)
|
||
|
|
{
|
||
|
|
return (!zfs_qat_encrypt_disable &&
|
||
|
|
qat_cy_init_done &&
|
||
|
|
s_len >= QAT_MIN_BUF_SIZE &&
|
||
|
|
s_len <= QAT_MAX_BUF_SIZE);
|
||
|
|
}
|
||
|
|
|
||
|
|
boolean_t
|
||
|
|
qat_checksum_use_accel(size_t s_len)
|
||
|
|
{
|
||
|
|
return (!zfs_qat_checksum_disable &&
|
||
|
|
qat_cy_init_done &&
|
||
|
|
s_len >= QAT_MIN_BUF_SIZE &&
|
||
|
|
s_len <= QAT_MAX_BUF_SIZE);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
qat_cy_clean(void)
|
||
|
|
{
|
||
|
|
for (Cpa16U i = 0; i < num_inst; i++)
|
||
|
|
cpaCyStopInstance(cy_inst_handles[i]);
|
||
|
|
|
||
|
|
num_inst = 0;
|
||
|
|
qat_cy_init_done = B_FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
qat_cy_init(void)
|
||
|
|
{
|
||
|
|
CpaStatus status = CPA_STATUS_FAIL;
|
||
|
|
|
||
|
|
if (qat_cy_init_done)
|
||
|
|
return (0);
|
||
|
|
|
||
|
|
status = cpaCyGetNumInstances(&num_inst);
|
||
|
|
if (status != CPA_STATUS_SUCCESS)
|
||
|
|
return (-1);
|
||
|
|
|
||
|
|
/* if the user has configured no QAT encryption units just return */
|
||
|
|
if (num_inst == 0)
|
||
|
|
return (0);
|
||
|
|
|
||
|
|
if (num_inst > QAT_CRYPT_MAX_INSTANCES)
|
||
|
|
num_inst = QAT_CRYPT_MAX_INSTANCES;
|
||
|
|
|
||
|
|
status = cpaCyGetInstances(num_inst, &cy_inst_handles[0]);
|
||
|
|
if (status != CPA_STATUS_SUCCESS)
|
||
|
|
return (-1);
|
||
|
|
|
||
|
|
for (Cpa16U i = 0; i < num_inst; i++) {
|
||
|
|
status = cpaCySetAddressTranslation(cy_inst_handles[i],
|
||
|
|
(void *)virt_to_phys);
|
||
|
|
if (status != CPA_STATUS_SUCCESS)
|
||
|
|
goto error;
|
||
|
|
|
||
|
|
status = cpaCyStartInstance(cy_inst_handles[i]);
|
||
|
|
if (status != CPA_STATUS_SUCCESS)
|
||
|
|
goto error;
|
||
|
|
}
|
||
|
|
|
||
|
|
qat_cy_init_done = B_TRUE;
|
||
|
|
return (0);
|
||
|
|
|
||
|
|
error:
|
||
|
|
qat_cy_clean();
|
||
|
|
return (-1);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
qat_cy_fini(void)
|
||
|
|
{
|
||
|
|
if (!qat_cy_init_done)
|
||
|
|
return;
|
||
|
|
|
||
|
|
qat_cy_clean();
|
||
|
|
}
|
||
|
|
|
||
|
|
static CpaStatus
|
||
|
|
qat_init_crypt_session_ctx(qat_encrypt_dir_t dir, CpaInstanceHandle inst_handle,
|
||
|
|
CpaCySymSessionCtx **cy_session_ctx, crypto_key_t *key,
|
||
|
|
Cpa64U crypt, Cpa32U aad_len)
|
||
|
|
{
|
||
|
|
CpaStatus status = CPA_STATUS_SUCCESS;
|
||
|
|
Cpa32U ctx_size;
|
||
|
|
Cpa32U ciper_algorithm;
|
||
|
|
Cpa32U hash_algorithm;
|
||
|
|
CpaCySymSessionSetupData sd = { 0 };
|
||
|
|
|
||
|
|
if (zio_crypt_table[crypt].ci_crypt_type == ZC_TYPE_CCM) {
|
||
|
|
return (CPA_STATUS_FAIL);
|
||
|
|
} else {
|
||
|
|
ciper_algorithm = CPA_CY_SYM_CIPHER_AES_GCM;
|
||
|
|
hash_algorithm = CPA_CY_SYM_HASH_AES_GCM;
|
||
|
|
}
|
||
|
|
|
||
|
|
sd.cipherSetupData.cipherAlgorithm = ciper_algorithm;
|
||
|
|
sd.cipherSetupData.pCipherKey = key->ck_data;
|
||
|
|
sd.cipherSetupData.cipherKeyLenInBytes = key->ck_length / 8;
|
||
|
|
sd.hashSetupData.hashAlgorithm = hash_algorithm;
|
||
|
|
sd.hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH;
|
||
|
|
sd.hashSetupData.digestResultLenInBytes = ZIO_DATA_MAC_LEN;
|
||
|
|
sd.hashSetupData.authModeSetupData.aadLenInBytes = aad_len;
|
||
|
|
sd.sessionPriority = CPA_CY_PRIORITY_NORMAL;
|
||
|
|
sd.symOperation = CPA_CY_SYM_OP_ALGORITHM_CHAINING;
|
||
|
|
sd.digestIsAppended = CPA_FALSE;
|
||
|
|
sd.verifyDigest = CPA_FALSE;
|
||
|
|
|
||
|
|
if (dir == QAT_ENCRYPT) {
|
||
|
|
sd.cipherSetupData.cipherDirection =
|
||
|
|
CPA_CY_SYM_CIPHER_DIRECTION_ENCRYPT;
|
||
|
|
sd.algChainOrder =
|
||
|
|
CPA_CY_SYM_ALG_CHAIN_ORDER_HASH_THEN_CIPHER;
|
||
|
|
} else {
|
||
|
|
ASSERT3U(dir, ==, QAT_DECRYPT);
|
||
|
|
sd.cipherSetupData.cipherDirection =
|
||
|
|
CPA_CY_SYM_CIPHER_DIRECTION_DECRYPT;
|
||
|
|
sd.algChainOrder =
|
||
|
|
CPA_CY_SYM_ALG_CHAIN_ORDER_CIPHER_THEN_HASH;
|
||
|
|
}
|
||
|
|
|
||
|
|
status = cpaCySymSessionCtxGetSize(inst_handle, &sd, &ctx_size);
|
||
|
|
if (status != CPA_STATUS_SUCCESS)
|
||
|
|
return (status);
|
||
|
|
|
||
|
|
status = QAT_PHYS_CONTIG_ALLOC(cy_session_ctx, ctx_size);
|
||
|
|
if (status != CPA_STATUS_SUCCESS)
|
||
|
|
return (status);
|
||
|
|
|
||
|
|
status = cpaCySymInitSession(inst_handle, symcallback, &sd,
|
||
|
|
*cy_session_ctx);
|
||
|
|
if (status != CPA_STATUS_SUCCESS) {
|
||
|
|
QAT_PHYS_CONTIG_FREE(*cy_session_ctx);
|
||
|
|
return (status);
|
||
|
|
}
|
||
|
|
|
||
|
|
return (CPA_STATUS_SUCCESS);
|
||
|
|
}
|
||
|
|
|
||
|
|
static CpaStatus
|
||
|
|
qat_init_checksum_session_ctx(CpaInstanceHandle inst_handle,
|
||
|
|
CpaCySymSessionCtx **cy_session_ctx, Cpa64U cksum)
|
||
|
|
{
|
||
|
|
CpaStatus status = CPA_STATUS_SUCCESS;
|
||
|
|
Cpa32U ctx_size;
|
||
|
|
Cpa32U hash_algorithm;
|
||
|
|
CpaCySymSessionSetupData sd = { 0 };
|
||
|
|
|
||
|
|
/*
|
||
|
|
* ZFS's SHA512 checksum is actually SHA512/256, which uses
|
||
|
|
* a different IV from standard SHA512. QAT does not support
|
||
|
|
* SHA512/256, so we can only support SHA256.
|
||
|
|
*/
|
||
|
|
if (cksum == ZIO_CHECKSUM_SHA256)
|
||
|
|
hash_algorithm = CPA_CY_SYM_HASH_SHA256;
|
||
|
|
else
|
||
|
|
return (CPA_STATUS_FAIL);
|
||
|
|
|
||
|
|
sd.sessionPriority = CPA_CY_PRIORITY_NORMAL;
|
||
|
|
sd.symOperation = CPA_CY_SYM_OP_HASH;
|
||
|
|
sd.hashSetupData.hashAlgorithm = hash_algorithm;
|
||
|
|
sd.hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN;
|
||
|
|
sd.hashSetupData.digestResultLenInBytes = sizeof (zio_cksum_t);
|
||
|
|
sd.digestIsAppended = CPA_FALSE;
|
||
|
|
sd.verifyDigest = CPA_FALSE;
|
||
|
|
|
||
|
|
status = cpaCySymSessionCtxGetSize(inst_handle, &sd, &ctx_size);
|
||
|
|
if (status != CPA_STATUS_SUCCESS)
|
||
|
|
return (status);
|
||
|
|
|
||
|
|
status = QAT_PHYS_CONTIG_ALLOC(cy_session_ctx, ctx_size);
|
||
|
|
if (status != CPA_STATUS_SUCCESS)
|
||
|
|
return (status);
|
||
|
|
|
||
|
|
status = cpaCySymInitSession(inst_handle, symcallback, &sd,
|
||
|
|
*cy_session_ctx);
|
||
|
|
if (status != CPA_STATUS_SUCCESS) {
|
||
|
|
QAT_PHYS_CONTIG_FREE(*cy_session_ctx);
|
||
|
|
return (status);
|
||
|
|
}
|
||
|
|
|
||
|
|
return (CPA_STATUS_SUCCESS);
|
||
|
|
}
|
||
|
|
|
||
|
|
static CpaStatus
|
||
|
|
qat_init_cy_buffer_lists(CpaInstanceHandle inst_handle, uint32_t nr_bufs,
|
||
|
|
CpaBufferList *src, CpaBufferList *dst)
|
||
|
|
{
|
||
|
|
CpaStatus status = CPA_STATUS_SUCCESS;
|
||
|
|
Cpa32U meta_size = 0;
|
||
|
|
|
||
|
|
status = cpaCyBufferListGetMetaSize(inst_handle, nr_bufs, &meta_size);
|
||
|
|
if (status != CPA_STATUS_SUCCESS)
|
||
|
|
return (status);
|
||
|
|
|
||
|
|
status = QAT_PHYS_CONTIG_ALLOC(&src->pPrivateMetaData, meta_size);
|
||
|
|
if (status != CPA_STATUS_SUCCESS)
|
||
|
|
goto error;
|
||
|
|
|
||
|
|
if (src != dst) {
|
||
|
|
status = QAT_PHYS_CONTIG_ALLOC(&dst->pPrivateMetaData,
|
||
|
|
meta_size);
|
||
|
|
if (status != CPA_STATUS_SUCCESS)
|
||
|
|
goto error;
|
||
|
|
}
|
||
|
|
|
||
|
|
return (CPA_STATUS_SUCCESS);
|
||
|
|
|
||
|
|
error:
|
||
|
|
QAT_PHYS_CONTIG_FREE(src->pPrivateMetaData);
|
||
|
|
if (src != dst)
|
||
|
|
QAT_PHYS_CONTIG_FREE(dst->pPrivateMetaData);
|
||
|
|
|
||
|
|
return (status);
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
qat_crypt(qat_encrypt_dir_t dir, uint8_t *src_buf, uint8_t *dst_buf,
|
||
|
|
uint8_t *aad_buf, uint32_t aad_len, uint8_t *iv_buf, uint8_t *digest_buf,
|
||
|
|
crypto_key_t *key, uint64_t crypt, uint32_t enc_len)
|
||
|
|
{
|
||
|
|
CpaStatus status = CPA_STATUS_SUCCESS;
|
||
|
|
Cpa16U i;
|
||
|
|
CpaInstanceHandle cy_inst_handle;
|
||
|
|
Cpa16U nr_bufs = (enc_len >> PAGE_SHIFT) + 2;
|
||
|
|
Cpa32U bytes_left = 0;
|
||
|
|
Cpa8S *data = NULL;
|
||
|
|
CpaCySymSessionCtx *cy_session_ctx = NULL;
|
||
|
|
cy_callback_t cb;
|
||
|
|
CpaCySymOpData op_data = { 0 };
|
||
|
|
CpaBufferList src_buffer_list = { 0 };
|
||
|
|
CpaBufferList dst_buffer_list = { 0 };
|
||
|
|
CpaFlatBuffer *flat_src_buf_array = NULL;
|
||
|
|
CpaFlatBuffer *flat_src_buf = NULL;
|
||
|
|
CpaFlatBuffer *flat_dst_buf_array = NULL;
|
||
|
|
CpaFlatBuffer *flat_dst_buf = NULL;
|
||
|
|
struct page *in_pages[MAX_PAGE_NUM];
|
||
|
|
struct page *out_pages[MAX_PAGE_NUM];
|
||
|
|
Cpa32U in_page_num = 0;
|
||
|
|
Cpa32U out_page_num = 0;
|
||
|
|
Cpa32U in_page_off = 0;
|
||
|
|
Cpa32U out_page_off = 0;
|
||
|
|
|
||
|
|
if (dir == QAT_ENCRYPT) {
|
||
|
|
QAT_STAT_BUMP(encrypt_requests);
|
||
|
|
QAT_STAT_INCR(encrypt_total_in_bytes, enc_len);
|
||
|
|
} else {
|
||
|
|
QAT_STAT_BUMP(decrypt_requests);
|
||
|
|
QAT_STAT_INCR(decrypt_total_in_bytes, enc_len);
|
||
|
|
}
|
||
|
|
|
||
|
|
i = (Cpa32U)atomic_inc_32_nv(&inst_num) % num_inst;
|
||
|
|
cy_inst_handle = cy_inst_handles[i];
|
||
|
|
|
||
|
|
status = qat_init_crypt_session_ctx(dir, cy_inst_handle,
|
||
|
|
&cy_session_ctx, key, crypt, aad_len);
|
||
|
|
if (status != CPA_STATUS_SUCCESS) {
|
||
|
|
/* don't count CCM as a failure since it's not supported */
|
||
|
|
if (zio_crypt_table[crypt].ci_crypt_type == ZC_TYPE_GCM)
|
||
|
|
QAT_STAT_BUMP(crypt_fails);
|
||
|
|
return (status);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* We increment nr_bufs by 2 to allow us to handle non
|
||
|
|
* page-aligned buffer addresses and buffers whose sizes
|
||
|
|
* are not divisible by PAGE_SIZE.
|
||
|
|
*/
|
||
|
|
status = qat_init_cy_buffer_lists(cy_inst_handle, nr_bufs,
|
||
|
|
&src_buffer_list, &dst_buffer_list);
|
||
|
|
if (status != CPA_STATUS_SUCCESS)
|
||
|
|
goto fail;
|
||
|
|
|
||
|
|
status = QAT_PHYS_CONTIG_ALLOC(&flat_src_buf_array,
|
||
|
|
nr_bufs * sizeof (CpaFlatBuffer));
|
||
|
|
if (status != CPA_STATUS_SUCCESS)
|
||
|
|
goto fail;
|
||
|
|
status = QAT_PHYS_CONTIG_ALLOC(&flat_dst_buf_array,
|
||
|
|
nr_bufs * sizeof (CpaFlatBuffer));
|
||
|
|
if (status != CPA_STATUS_SUCCESS)
|
||
|
|
goto fail;
|
||
|
|
status = QAT_PHYS_CONTIG_ALLOC(&op_data.pDigestResult,
|
||
|
|
ZIO_DATA_MAC_LEN);
|
||
|
|
if (status != CPA_STATUS_SUCCESS)
|
||
|
|
goto fail;
|
||
|
|
status = QAT_PHYS_CONTIG_ALLOC(&op_data.pIv,
|
||
|
|
ZIO_DATA_IV_LEN);
|
||
|
|
if (status != CPA_STATUS_SUCCESS)
|
||
|
|
goto fail;
|
||
|
|
if (aad_len > 0) {
|
||
|
|
status = QAT_PHYS_CONTIG_ALLOC(&op_data.pAdditionalAuthData,
|
||
|
|
aad_len);
|
||
|
|
if (status != CPA_STATUS_SUCCESS)
|
||
|
|
goto fail;
|
||
|
|
bcopy(aad_buf, op_data.pAdditionalAuthData, aad_len);
|
||
|
|
}
|
||
|
|
|
||
|
|
bytes_left = enc_len;
|
||
|
|
data = src_buf;
|
||
|
|
flat_src_buf = flat_src_buf_array;
|
||
|
|
while (bytes_left > 0) {
|
||
|
|
in_page_off = ((long)data & ~PAGE_MASK);
|
||
|
|
in_pages[in_page_num] = qat_mem_to_page(data);
|
||
|
|
flat_src_buf->pData = kmap(in_pages[in_page_num]) + in_page_off;
|
||
|
|
flat_src_buf->dataLenInBytes =
|
||
|
|
min((long)PAGE_SIZE - in_page_off, (long)bytes_left);
|
||
|
|
data += flat_src_buf->dataLenInBytes;
|
||
|
|
bytes_left -= flat_src_buf->dataLenInBytes;
|
||
|
|
flat_src_buf++;
|
||
|
|
in_page_num++;
|
||
|
|
}
|
||
|
|
src_buffer_list.pBuffers = flat_src_buf_array;
|
||
|
|
src_buffer_list.numBuffers = in_page_num;
|
||
|
|
|
||
|
|
bytes_left = enc_len;
|
||
|
|
data = dst_buf;
|
||
|
|
flat_dst_buf = flat_dst_buf_array;
|
||
|
|
while (bytes_left > 0) {
|
||
|
|
out_page_off = ((long)data & ~PAGE_MASK);
|
||
|
|
out_pages[out_page_num] = qat_mem_to_page(data);
|
||
|
|
flat_dst_buf->pData = kmap(out_pages[out_page_num]) +
|
||
|
|
out_page_off;
|
||
|
|
flat_dst_buf->dataLenInBytes =
|
||
|
|
min((long)PAGE_SIZE - out_page_off, (long)bytes_left);
|
||
|
|
data += flat_dst_buf->dataLenInBytes;
|
||
|
|
bytes_left -= flat_dst_buf->dataLenInBytes;
|
||
|
|
flat_dst_buf++;
|
||
|
|
out_page_num++;
|
||
|
|
}
|
||
|
|
dst_buffer_list.pBuffers = flat_dst_buf_array;
|
||
|
|
dst_buffer_list.numBuffers = out_page_num;
|
||
|
|
|
||
|
|
op_data.sessionCtx = cy_session_ctx;
|
||
|
|
op_data.packetType = CPA_CY_SYM_PACKET_TYPE_FULL;
|
||
|
|
op_data.cryptoStartSrcOffsetInBytes = 0;
|
||
|
|
op_data.messageLenToCipherInBytes = 0;
|
||
|
|
op_data.hashStartSrcOffsetInBytes = 0;
|
||
|
|
op_data.messageLenToHashInBytes = 0;
|
||
|
|
op_data.messageLenToCipherInBytes = enc_len;
|
||
|
|
op_data.ivLenInBytes = ZIO_DATA_IV_LEN;
|
||
|
|
bcopy(iv_buf, op_data.pIv, ZIO_DATA_IV_LEN);
|
||
|
|
/* if dir is QAT_DECRYPT, copy digest_buf to pDigestResult */
|
||
|
|
if (dir == QAT_DECRYPT)
|
||
|
|
bcopy(digest_buf, op_data.pDigestResult, ZIO_DATA_MAC_LEN);
|
||
|
|
|
||
|
|
cb.verify_result = CPA_FALSE;
|
||
|
|
init_completion(&cb.complete);
|
||
|
|
status = cpaCySymPerformOp(cy_inst_handle, &cb, &op_data,
|
||
|
|
&src_buffer_list, &dst_buffer_list, NULL);
|
||
|
|
if (status != CPA_STATUS_SUCCESS)
|
||
|
|
goto fail;
|
||
|
|
|
||
|
|
/* we now wait until the completion of the operation. */
|
||
|
|
wait_for_completion(&cb.complete);
|
||
|
|
|
||
|
|
if (cb.verify_result == CPA_FALSE) {
|
||
|
|
status = CPA_STATUS_FAIL;
|
||
|
|
goto fail;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (dir == QAT_ENCRYPT) {
|
||
|
|
/* if dir is QAT_ENCRYPT, save pDigestResult to digest_buf */
|
||
|
|
bcopy(op_data.pDigestResult, digest_buf, ZIO_DATA_MAC_LEN);
|
||
|
|
QAT_STAT_INCR(encrypt_total_out_bytes, enc_len);
|
||
|
|
} else {
|
||
|
|
QAT_STAT_INCR(decrypt_total_out_bytes, enc_len);
|
||
|
|
}
|
||
|
|
|
||
|
|
fail:
|
||
|
|
if (status != CPA_STATUS_SUCCESS)
|
||
|
|
QAT_STAT_BUMP(crypt_fails);
|
||
|
|
|
||
|
|
for (i = 0; i < in_page_num; i++)
|
||
|
|
kunmap(in_pages[i]);
|
||
|
|
for (i = 0; i < out_page_num; i++)
|
||
|
|
kunmap(out_pages[i]);
|
||
|
|
|
||
|
|
cpaCySymRemoveSession(cy_inst_handle, cy_session_ctx);
|
||
|
|
if (aad_len > 0)
|
||
|
|
QAT_PHYS_CONTIG_FREE(op_data.pAdditionalAuthData);
|
||
|
|
QAT_PHYS_CONTIG_FREE(op_data.pIv);
|
||
|
|
QAT_PHYS_CONTIG_FREE(op_data.pDigestResult);
|
||
|
|
QAT_PHYS_CONTIG_FREE(src_buffer_list.pPrivateMetaData);
|
||
|
|
QAT_PHYS_CONTIG_FREE(dst_buffer_list.pPrivateMetaData);
|
||
|
|
QAT_PHYS_CONTIG_FREE(cy_session_ctx);
|
||
|
|
QAT_PHYS_CONTIG_FREE(flat_src_buf_array);
|
||
|
|
QAT_PHYS_CONTIG_FREE(flat_dst_buf_array);
|
||
|
|
|
||
|
|
return (status);
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
qat_checksum(uint64_t cksum, uint8_t *buf, uint64_t size, zio_cksum_t *zcp)
|
||
|
|
{
|
||
|
|
CpaStatus status;
|
||
|
|
Cpa16U i;
|
||
|
|
CpaInstanceHandle cy_inst_handle;
|
||
|
|
Cpa16U nr_bufs = (size >> PAGE_SHIFT) + 2;
|
||
|
|
Cpa32U bytes_left = 0;
|
||
|
|
Cpa8S *data = NULL;
|
||
|
|
CpaCySymSessionCtx *cy_session_ctx = NULL;
|
||
|
|
cy_callback_t cb;
|
||
|
|
Cpa8U *digest_buffer = NULL;
|
||
|
|
CpaCySymOpData op_data = { 0 };
|
||
|
|
CpaBufferList src_buffer_list = { 0 };
|
||
|
|
CpaFlatBuffer *flat_src_buf_array = NULL;
|
||
|
|
CpaFlatBuffer *flat_src_buf = NULL;
|
||
|
|
struct page *in_pages[MAX_PAGE_NUM];
|
||
|
|
Cpa32U page_num = 0;
|
||
|
|
Cpa32U page_off = 0;
|
||
|
|
|
||
|
|
QAT_STAT_BUMP(cksum_requests);
|
||
|
|
QAT_STAT_INCR(cksum_total_in_bytes, size);
|
||
|
|
|
||
|
|
i = (Cpa32U)atomic_inc_32_nv(&inst_num) % num_inst;
|
||
|
|
cy_inst_handle = cy_inst_handles[i];
|
||
|
|
|
||
|
|
status = qat_init_checksum_session_ctx(cy_inst_handle,
|
||
|
|
&cy_session_ctx, cksum);
|
||
|
|
if (status != CPA_STATUS_SUCCESS) {
|
||
|
|
/* don't count unsupported checksums as a failure */
|
||
|
|
if (cksum == ZIO_CHECKSUM_SHA256 ||
|
||
|
|
cksum == ZIO_CHECKSUM_SHA512)
|
||
|
|
QAT_STAT_BUMP(cksum_fails);
|
||
|
|
return (status);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* We increment nr_bufs by 2 to allow us to handle non
|
||
|
|
* page-aligned buffer addresses and buffers whose sizes
|
||
|
|
* are not divisible by PAGE_SIZE.
|
||
|
|
*/
|
||
|
|
status = qat_init_cy_buffer_lists(cy_inst_handle, nr_bufs,
|
||
|
|
&src_buffer_list, &src_buffer_list);
|
||
|
|
if (status != CPA_STATUS_SUCCESS)
|
||
|
|
goto fail;
|
||
|
|
|
||
|
|
status = QAT_PHYS_CONTIG_ALLOC(&flat_src_buf_array,
|
||
|
|
nr_bufs * sizeof (CpaFlatBuffer));
|
||
|
|
if (status != CPA_STATUS_SUCCESS)
|
||
|
|
goto fail;
|
||
|
|
status = QAT_PHYS_CONTIG_ALLOC(&digest_buffer,
|
||
|
|
sizeof (zio_cksum_t));
|
||
|
|
if (status != CPA_STATUS_SUCCESS)
|
||
|
|
goto fail;
|
||
|
|
|
||
|
|
bytes_left = size;
|
||
|
|
data = buf;
|
||
|
|
flat_src_buf = flat_src_buf_array;
|
||
|
|
while (bytes_left > 0) {
|
||
|
|
page_off = ((long)data & ~PAGE_MASK);
|
||
|
|
in_pages[page_num] = qat_mem_to_page(data);
|
||
|
|
flat_src_buf->pData = kmap(in_pages[page_num]) + page_off;
|
||
|
|
flat_src_buf->dataLenInBytes =
|
||
|
|
min((long)PAGE_SIZE - page_off, (long)bytes_left);
|
||
|
|
data += flat_src_buf->dataLenInBytes;
|
||
|
|
bytes_left -= flat_src_buf->dataLenInBytes;
|
||
|
|
flat_src_buf++;
|
||
|
|
page_num++;
|
||
|
|
}
|
||
|
|
src_buffer_list.pBuffers = flat_src_buf_array;
|
||
|
|
src_buffer_list.numBuffers = page_num;
|
||
|
|
|
||
|
|
op_data.sessionCtx = cy_session_ctx;
|
||
|
|
op_data.packetType = CPA_CY_SYM_PACKET_TYPE_FULL;
|
||
|
|
op_data.hashStartSrcOffsetInBytes = 0;
|
||
|
|
op_data.messageLenToHashInBytes = size;
|
||
|
|
op_data.pDigestResult = digest_buffer;
|
||
|
|
|
||
|
|
cb.verify_result = CPA_FALSE;
|
||
|
|
init_completion(&cb.complete);
|
||
|
|
status = cpaCySymPerformOp(cy_inst_handle, &cb, &op_data,
|
||
|
|
&src_buffer_list, &src_buffer_list, NULL);
|
||
|
|
if (status != CPA_STATUS_SUCCESS)
|
||
|
|
goto fail;
|
||
|
|
|
||
|
|
/* we now wait until the completion of the operation. */
|
||
|
|
wait_for_completion(&cb.complete);
|
||
|
|
|
||
|
|
if (cb.verify_result == CPA_FALSE) {
|
||
|
|
status = CPA_STATUS_FAIL;
|
||
|
|
goto fail;
|
||
|
|
}
|
||
|
|
|
||
|
|
bcopy(digest_buffer, zcp, sizeof (zio_cksum_t));
|
||
|
|
|
||
|
|
fail:
|
||
|
|
if (status != CPA_STATUS_SUCCESS)
|
||
|
|
QAT_STAT_BUMP(cksum_fails);
|
||
|
|
|
||
|
|
for (i = 0; i < page_num; i++)
|
||
|
|
kunmap(in_pages[i]);
|
||
|
|
|
||
|
|
cpaCySymRemoveSession(cy_inst_handle, cy_session_ctx);
|
||
|
|
QAT_PHYS_CONTIG_FREE(digest_buffer);
|
||
|
|
QAT_PHYS_CONTIG_FREE(src_buffer_list.pPrivateMetaData);
|
||
|
|
QAT_PHYS_CONTIG_FREE(cy_session_ctx);
|
||
|
|
QAT_PHYS_CONTIG_FREE(flat_src_buf_array);
|
||
|
|
|
||
|
|
return (status);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
param_set_qat_encrypt(const char *val, zfs_kernel_param_t *kp)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
int *pvalue = kp->arg;
|
||
|
|
ret = param_set_int(val, kp);
|
||
|
|
if (ret)
|
||
|
|
return (ret);
|
||
|
|
/*
|
||
|
|
* zfs_qat_encrypt_disable = 0: enable qat encrypt
|
||
|
|
* try to initialize qat instance if it has not been done
|
||
|
|
*/
|
||
|
|
if (*pvalue == 0 && !qat_cy_init_done) {
|
||
|
|
ret = qat_cy_init();
|
||
|
|
if (ret != 0) {
|
||
|
|
zfs_qat_encrypt_disable = 1;
|
||
|
|
return (ret);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return (ret);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
param_set_qat_checksum(const char *val, zfs_kernel_param_t *kp)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
int *pvalue = kp->arg;
|
||
|
|
ret = param_set_int(val, kp);
|
||
|
|
if (ret)
|
||
|
|
return (ret);
|
||
|
|
/*
|
||
|
|
* set_checksum_param_ops = 0: enable qat checksum
|
||
|
|
* try to initialize qat instance if it has not been done
|
||
|
|
*/
|
||
|
|
if (*pvalue == 0 && !qat_cy_init_done) {
|
||
|
|
ret = qat_cy_init();
|
||
|
|
if (ret != 0) {
|
||
|
|
zfs_qat_checksum_disable = 1;
|
||
|
|
return (ret);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return (ret);
|
||
|
|
}
|
||
|
|
|
||
|
|
module_param_call(zfs_qat_encrypt_disable, param_set_qat_encrypt,
|
||
|
|
param_get_int, &zfs_qat_encrypt_disable, 0644);
|
||
|
|
MODULE_PARM_DESC(zfs_qat_encrypt_disable, "Enable/Disable QAT encryption");
|
||
|
|
|
||
|
|
module_param_call(zfs_qat_checksum_disable, param_set_qat_checksum,
|
||
|
|
param_get_int, &zfs_qat_checksum_disable, 0644);
|
||
|
|
MODULE_PARM_DESC(zfs_qat_checksum_disable, "Enable/Disable QAT checksumming");
|
||
|
|
|
||
|
|
#endif
|