| /* |
| * 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 "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 |