From: Ravi Kumar Date: Mon, 19 Mar 2018 12:23:51 +0000 (-0400) Subject: crypto/ccp: support CPU based MD5 and SHA2 family X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=6c561b03b54c3d09e333ff14caa06a40c894dfd2;p=dpdk.git crypto/ccp: support CPU based MD5 and SHA2 family Auth operations can be performed on CPU without offloading to CCP if CONFIG_RTE_LIBRTE_PMD_CCP_CPU_AUTH is enabled in DPDK configuration. CCP PMD skip offloading auth operations to hardware engines and perform them using openssl APIs. Signed-off-by: Ravi Kumar --- diff --git a/config/common_base b/config/common_base index 3212b2ddd8..dc30247538 100644 --- a/config/common_base +++ b/config/common_base @@ -544,6 +544,7 @@ CONFIG_RTE_LIBRTE_PMD_NULL_CRYPTO=y # Compile PMD for AMD CCP crypto device # CONFIG_RTE_LIBRTE_PMD_CCP=n +CONFIG_RTE_LIBRTE_PMD_CCP_CPU_AUTH=n # # Compile PMD for Marvell Crypto device diff --git a/drivers/crypto/ccp/ccp_crypto.c b/drivers/crypto/ccp/ccp_crypto.c index 53e731b7e3..a0809e41e9 100644 --- a/drivers/crypto/ccp/ccp_crypto.c +++ b/drivers/crypto/ccp/ccp_crypto.c @@ -27,6 +27,12 @@ #include "ccp_pci.h" #include "ccp_pmd_private.h" +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH +#include +#include +#include +#endif + /* SHA initial context values */ static uint32_t ccp_sha1_init[SHA_COMMON_DIGEST_SIZE / sizeof(uint32_t)] = { SHA1_H4, SHA1_H3, @@ -760,6 +766,17 @@ ccp_configure_session_auth(struct ccp_session *sess, else sess->auth.op = CCP_AUTH_OP_VERIFY; switch (auth_xform->algo) { +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH + case RTE_CRYPTO_AUTH_MD5_HMAC: + sess->auth.algo = CCP_AUTH_ALGO_MD5_HMAC; + sess->auth.offset = (CCP_SB_BYTES << 1) - MD5_DIGEST_SIZE; + sess->auth.key_length = auth_xform->key.length; + sess->auth.block_size = MD5_BLOCK_SIZE; + memset(sess->auth.key, 0, sess->auth.block_size); + rte_memcpy(sess->auth.key, auth_xform->key.data, + auth_xform->key.length); + break; +#endif case RTE_CRYPTO_AUTH_SHA1: sess->auth.engine = CCP_ENGINE_SHA; sess->auth.algo = CCP_AUTH_ALGO_SHA1; @@ -769,6 +786,17 @@ ccp_configure_session_auth(struct ccp_session *sess, sess->auth.offset = CCP_SB_BYTES - SHA1_DIGEST_SIZE; break; case RTE_CRYPTO_AUTH_SHA1_HMAC: +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH + if (auth_xform->key.length > SHA1_BLOCK_SIZE) + return -1; + sess->auth.algo = CCP_AUTH_ALGO_SHA1_HMAC; + sess->auth.offset = CCP_SB_BYTES - SHA1_DIGEST_SIZE; + sess->auth.block_size = SHA1_BLOCK_SIZE; + sess->auth.key_length = auth_xform->key.length; + memset(sess->auth.key, 0, sess->auth.block_size); + rte_memcpy(sess->auth.key, auth_xform->key.data, + auth_xform->key.length); +#else if (auth_xform->key.length > SHA1_BLOCK_SIZE) return -1; sess->auth.engine = CCP_ENGINE_SHA; @@ -784,6 +812,7 @@ ccp_configure_session_auth(struct ccp_session *sess, auth_xform->key.length); if (generate_partial_hash(sess)) return -1; +#endif break; case RTE_CRYPTO_AUTH_SHA224: sess->auth.algo = CCP_AUTH_ALGO_SHA224; @@ -794,6 +823,17 @@ ccp_configure_session_auth(struct ccp_session *sess, sess->auth.offset = CCP_SB_BYTES - SHA224_DIGEST_SIZE; break; case RTE_CRYPTO_AUTH_SHA224_HMAC: +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH + if (auth_xform->key.length > SHA224_BLOCK_SIZE) + return -1; + sess->auth.algo = CCP_AUTH_ALGO_SHA224_HMAC; + sess->auth.offset = CCP_SB_BYTES - SHA224_DIGEST_SIZE; + sess->auth.block_size = SHA224_BLOCK_SIZE; + sess->auth.key_length = auth_xform->key.length; + memset(sess->auth.key, 0, sess->auth.block_size); + rte_memcpy(sess->auth.key, auth_xform->key.data, + auth_xform->key.length); +#else if (auth_xform->key.length > SHA224_BLOCK_SIZE) return -1; sess->auth.algo = CCP_AUTH_ALGO_SHA224_HMAC; @@ -809,6 +849,7 @@ ccp_configure_session_auth(struct ccp_session *sess, auth_xform->key.length); if (generate_partial_hash(sess)) return -1; +#endif break; case RTE_CRYPTO_AUTH_SHA3_224: sess->auth.algo = CCP_AUTH_ALGO_SHA3_224; @@ -843,6 +884,17 @@ ccp_configure_session_auth(struct ccp_session *sess, sess->auth.offset = CCP_SB_BYTES - SHA256_DIGEST_SIZE; break; case RTE_CRYPTO_AUTH_SHA256_HMAC: +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH + if (auth_xform->key.length > SHA256_BLOCK_SIZE) + return -1; + sess->auth.algo = CCP_AUTH_ALGO_SHA256_HMAC; + sess->auth.offset = CCP_SB_BYTES - SHA256_DIGEST_SIZE; + sess->auth.block_size = SHA256_BLOCK_SIZE; + sess->auth.key_length = auth_xform->key.length; + memset(sess->auth.key, 0, sess->auth.block_size); + rte_memcpy(sess->auth.key, auth_xform->key.data, + auth_xform->key.length); +#else if (auth_xform->key.length > SHA256_BLOCK_SIZE) return -1; sess->auth.algo = CCP_AUTH_ALGO_SHA256_HMAC; @@ -858,6 +910,7 @@ ccp_configure_session_auth(struct ccp_session *sess, auth_xform->key.length); if (generate_partial_hash(sess)) return -1; +#endif break; case RTE_CRYPTO_AUTH_SHA3_256: sess->auth.algo = CCP_AUTH_ALGO_SHA3_256; @@ -892,6 +945,17 @@ ccp_configure_session_auth(struct ccp_session *sess, sess->auth.offset = (CCP_SB_BYTES << 1) - SHA384_DIGEST_SIZE; break; case RTE_CRYPTO_AUTH_SHA384_HMAC: +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH + if (auth_xform->key.length > SHA384_BLOCK_SIZE) + return -1; + sess->auth.algo = CCP_AUTH_ALGO_SHA384_HMAC; + sess->auth.offset = (CCP_SB_BYTES << 1) - SHA384_DIGEST_SIZE; + sess->auth.block_size = SHA384_BLOCK_SIZE; + sess->auth.key_length = auth_xform->key.length; + memset(sess->auth.key, 0, sess->auth.block_size); + rte_memcpy(sess->auth.key, auth_xform->key.data, + auth_xform->key.length); +#else if (auth_xform->key.length > SHA384_BLOCK_SIZE) return -1; sess->auth.algo = CCP_AUTH_ALGO_SHA384_HMAC; @@ -907,6 +971,7 @@ ccp_configure_session_auth(struct ccp_session *sess, auth_xform->key.length); if (generate_partial_hash(sess)) return -1; +#endif break; case RTE_CRYPTO_AUTH_SHA3_384: sess->auth.algo = CCP_AUTH_ALGO_SHA3_384; @@ -941,6 +1006,17 @@ ccp_configure_session_auth(struct ccp_session *sess, sess->auth.offset = (CCP_SB_BYTES << 1) - SHA512_DIGEST_SIZE; break; case RTE_CRYPTO_AUTH_SHA512_HMAC: +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH + if (auth_xform->key.length > SHA512_BLOCK_SIZE) + return -1; + sess->auth.algo = CCP_AUTH_ALGO_SHA512_HMAC; + sess->auth.offset = (CCP_SB_BYTES << 1) - SHA512_DIGEST_SIZE; + sess->auth.block_size = SHA512_BLOCK_SIZE; + sess->auth.key_length = auth_xform->key.length; + memset(sess->auth.key, 0, sess->auth.block_size); + rte_memcpy(sess->auth.key, auth_xform->key.data, + auth_xform->key.length); +#else if (auth_xform->key.length > SHA512_BLOCK_SIZE) return -1; sess->auth.algo = CCP_AUTH_ALGO_SHA512_HMAC; @@ -956,6 +1032,7 @@ ccp_configure_session_auth(struct ccp_session *sess, auth_xform->key.length); if (generate_partial_hash(sess)) return -1; +#endif break; case RTE_CRYPTO_AUTH_SHA3_512: sess->auth.algo = CCP_AUTH_ALGO_SHA3_512; @@ -986,7 +1063,7 @@ ccp_configure_session_auth(struct ccp_session *sess, sess->auth.engine = CCP_ENGINE_AES; sess->auth.um.aes_mode = CCP_AES_MODE_CMAC; sess->auth.key_length = auth_xform->key.length; - /**auth.ctx_len = CCP_SB_BYTES << 1; sess->auth.offset = AES_BLOCK_SIZE; sess->auth.block_size = AES_BLOCK_SIZE; @@ -1182,14 +1259,22 @@ ccp_auth_slot(struct ccp_session *session) count = 3; /**< op + lsb passthrough cpy to/from*/ break; +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH + case CCP_AUTH_ALGO_MD5_HMAC: + break; +#endif case CCP_AUTH_ALGO_SHA1_HMAC: case CCP_AUTH_ALGO_SHA224_HMAC: case CCP_AUTH_ALGO_SHA256_HMAC: +#ifndef RTE_LIBRTE_PMD_CCP_CPU_AUTH count = 6; +#endif break; case CCP_AUTH_ALGO_SHA384_HMAC: case CCP_AUTH_ALGO_SHA512_HMAC: +#ifndef RTE_LIBRTE_PMD_CCP_CPU_AUTH count = 7; +#endif /** * 1. Load PHash1 = H(k ^ ipad); to LSB * 2. generate IHash = H(hash on meassage with PHash1 @@ -1296,6 +1381,122 @@ ccp_compute_slot_count(struct ccp_session *session) return count; } +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH +static uint8_t +algo_select(int sessalgo, + const EVP_MD **algo) +{ + int res = 0; + + switch (sessalgo) { + case CCP_AUTH_ALGO_MD5_HMAC: + *algo = EVP_md5(); + break; + case CCP_AUTH_ALGO_SHA1_HMAC: + *algo = EVP_sha1(); + break; + case CCP_AUTH_ALGO_SHA224_HMAC: + *algo = EVP_sha224(); + break; + case CCP_AUTH_ALGO_SHA256_HMAC: + *algo = EVP_sha256(); + break; + case CCP_AUTH_ALGO_SHA384_HMAC: + *algo = EVP_sha384(); + break; + case CCP_AUTH_ALGO_SHA512_HMAC: + *algo = EVP_sha512(); + break; + default: + res = -EINVAL; + break; + } + return res; +} + +static int +process_cpu_auth_hmac(uint8_t *src, uint8_t *dst, + __rte_unused uint8_t *iv, + EVP_PKEY *pkey, + int srclen, + EVP_MD_CTX *ctx, + const EVP_MD *algo, + uint16_t d_len) +{ + size_t dstlen; + unsigned char temp_dst[64]; + + if (EVP_DigestSignInit(ctx, NULL, algo, NULL, pkey) <= 0) + goto process_auth_err; + + if (EVP_DigestSignUpdate(ctx, (char *)src, srclen) <= 0) + goto process_auth_err; + + if (EVP_DigestSignFinal(ctx, temp_dst, &dstlen) <= 0) + goto process_auth_err; + + memcpy(dst, temp_dst, d_len); + return 0; +process_auth_err: + CCP_LOG_ERR("Process cpu auth failed"); + return -EINVAL; +} + +static int cpu_crypto_auth(struct ccp_qp *qp, + struct rte_crypto_op *op, + struct ccp_session *sess, + EVP_MD_CTX *ctx) +{ + uint8_t *src, *dst; + int srclen, status; + struct rte_mbuf *mbuf_src, *mbuf_dst; + const EVP_MD *algo = NULL; + EVP_PKEY *pkey; + + algo_select(sess->auth.algo, &algo); + pkey = EVP_PKEY_new_mac_key(EVP_PKEY_HMAC, NULL, sess->auth.key, + sess->auth.key_length); + mbuf_src = op->sym->m_src; + mbuf_dst = op->sym->m_dst ? op->sym->m_dst : op->sym->m_src; + srclen = op->sym->auth.data.length; + src = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *, + op->sym->auth.data.offset); + + if (sess->auth.op == CCP_AUTH_OP_VERIFY) { + dst = qp->temp_digest; + } else { + dst = op->sym->auth.digest.data; + if (dst == NULL) { + dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *, + op->sym->auth.data.offset + + sess->auth.digest_length); + } + } + status = process_cpu_auth_hmac(src, dst, NULL, + pkey, srclen, + ctx, + algo, + sess->auth.digest_length); + if (status) { + op->status = RTE_CRYPTO_OP_STATUS_ERROR; + return status; + } + + if (sess->auth.op == CCP_AUTH_OP_VERIFY) { + if (memcmp(dst, op->sym->auth.digest.data, + sess->auth.digest_length) != 0) { + op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED; + } else { + op->status = RTE_CRYPTO_OP_STATUS_SUCCESS; + } + } else { + op->status = RTE_CRYPTO_OP_STATUS_SUCCESS; + } + EVP_PKEY_free(pkey); + return 0; +} +#endif + static void ccp_perform_passthru(struct ccp_passthru *pst, struct ccp_queue *cmd_q) @@ -2391,14 +2592,24 @@ ccp_crypto_auth(struct rte_crypto_op *op, result = ccp_perform_sha(op, cmd_q); b_info->desccnt += 3; break; +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH + case CCP_AUTH_ALGO_MD5_HMAC: + break; +#endif case CCP_AUTH_ALGO_SHA1_HMAC: case CCP_AUTH_ALGO_SHA224_HMAC: case CCP_AUTH_ALGO_SHA256_HMAC: +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH + break; +#endif result = ccp_perform_hmac(op, cmd_q); b_info->desccnt += 6; break; case CCP_AUTH_ALGO_SHA384_HMAC: case CCP_AUTH_ALGO_SHA512_HMAC: +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH + break; +#endif result = ccp_perform_hmac(op, cmd_q); b_info->desccnt += 7; break; @@ -2462,7 +2673,7 @@ ccp_crypto_aead(struct rte_crypto_op *op, } int -process_ops_to_enqueue(const struct ccp_qp *qp, +process_ops_to_enqueue(struct ccp_qp *qp, struct rte_crypto_op **op, struct ccp_queue *cmd_q, uint16_t nb_ops, @@ -2471,11 +2682,22 @@ process_ops_to_enqueue(const struct ccp_qp *qp, int i, result = 0; struct ccp_batch_info *b_info; struct ccp_session *session; +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH + EVP_MD_CTX *auth_ctx = NULL; +#endif if (rte_mempool_get(qp->batch_mp, (void **)&b_info)) { CCP_LOG_ERR("batch info allocation failed"); return 0; } +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH + auth_ctx = EVP_MD_CTX_create(); + if (unlikely(!auth_ctx)) { + CCP_LOG_ERR("Unable to create auth ctx"); + return 0; + } + b_info->auth_ctr = 0; +#endif /* populate batch info necessary for dequeue */ b_info->op_idx = 0; b_info->lsb_buf_idx = 0; @@ -2497,6 +2719,11 @@ process_ops_to_enqueue(const struct ccp_qp *qp, break; case CCP_CMD_AUTH: result = ccp_crypto_auth(op[i], cmd_q, b_info); +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH + b_info->auth_ctr++; + result = cpu_crypto_auth(qp, op[i], + session, auth_ctx); +#endif break; case CCP_CMD_CIPHER_HASH: result = ccp_crypto_cipher(op[i], cmd_q, b_info); @@ -2506,6 +2733,12 @@ process_ops_to_enqueue(const struct ccp_qp *qp, break; case CCP_CMD_HASH_CIPHER: result = ccp_crypto_auth(op[i], cmd_q, b_info); +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH + result = cpu_crypto_auth(qp, op[i], + session, auth_ctx); + if (op[i]->status != RTE_CRYPTO_OP_STATUS_SUCCESS) + continue; +#endif if (result) break; result = ccp_crypto_cipher(op[i], cmd_q, b_info); @@ -2539,6 +2772,9 @@ process_ops_to_enqueue(const struct ccp_qp *qp, rte_ring_enqueue(qp->processed_pkts, (void *)b_info); +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH + EVP_MD_CTX_destroy(auth_ctx); +#endif return i; } @@ -2607,13 +2843,27 @@ static inline void ccp_auth_dq_prepare(struct rte_crypto_op *op) } static int -ccp_prepare_ops(struct rte_crypto_op **op_d, +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH +ccp_prepare_ops(struct ccp_qp *qp, +#else +ccp_prepare_ops(struct ccp_qp *qp __rte_unused, +#endif + struct rte_crypto_op **op_d, struct ccp_batch_info *b_info, uint16_t nb_ops) { int i, min_ops; struct ccp_session *session; +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH + EVP_MD_CTX *auth_ctx = NULL; + + auth_ctx = EVP_MD_CTX_create(); + if (unlikely(!auth_ctx)) { + CCP_LOG_ERR("Unable to create auth ctx"); + return 0; + } +#endif min_ops = RTE_MIN(nb_ops, b_info->opcnt); for (i = 0; i < min_ops; i++) { @@ -2626,8 +2876,25 @@ ccp_prepare_ops(struct rte_crypto_op **op_d, op_d[i]->status = RTE_CRYPTO_OP_STATUS_SUCCESS; break; case CCP_CMD_AUTH: +#ifndef RTE_LIBRTE_PMD_CCP_CPU_AUTH + ccp_auth_dq_prepare(op_d[i]); +#endif + break; case CCP_CMD_CIPHER_HASH: +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH + cpu_crypto_auth(qp, op_d[i], + session, auth_ctx); +#else + ccp_auth_dq_prepare(op_d[i]); +#endif + break; case CCP_CMD_HASH_CIPHER: +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH + op_d[i]->status = RTE_CRYPTO_OP_STATUS_SUCCESS; +#else + ccp_auth_dq_prepare(op_d[i]); +#endif + break; case CCP_CMD_COMBINED: ccp_auth_dq_prepare(op_d[i]); break; @@ -2636,6 +2903,9 @@ ccp_prepare_ops(struct rte_crypto_op **op_d, } } +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH + EVP_MD_CTX_destroy(auth_ctx); +#endif b_info->opcnt -= min_ops; return min_ops; } @@ -2655,6 +2925,10 @@ process_ops_to_dequeue(struct ccp_qp *qp, } else if (rte_ring_dequeue(qp->processed_pkts, (void **)&b_info)) return 0; +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH + if (b_info->auth_ctr == b_info->opcnt) + goto success; +#endif cur_head_offset = CCP_READ_REG(b_info->cmd_q->reg_base, CMD_Q_HEAD_LO_BASE); @@ -2674,7 +2948,7 @@ process_ops_to_dequeue(struct ccp_qp *qp, success: - nb_ops = ccp_prepare_ops(op, b_info, nb_ops); + nb_ops = ccp_prepare_ops(qp, op, b_info, nb_ops); rte_atomic64_add(&b_info->cmd_q->free_slots, b_info->desccnt); b_info->desccnt = 0; if (b_info->opcnt > 0) { diff --git a/drivers/crypto/ccp/ccp_crypto.h b/drivers/crypto/ccp/ccp_crypto.h index 23b048671b..dd89ad9185 100644 --- a/drivers/crypto/ccp/ccp_crypto.h +++ b/drivers/crypto/ccp/ccp_crypto.h @@ -68,6 +68,9 @@ #define SHA512_BLOCK_SIZE 128 #define SHA3_512_BLOCK_SIZE 72 +/* Maximum length for digest */ +#define DIGEST_LENGTH_MAX 64 + /* SHA LSB intialiazation values */ #define SHA1_H0 0x67452301UL @@ -346,7 +349,7 @@ int ccp_compute_slot_count(struct ccp_session *session); * @param nb_ops No. of ops to be submitted * @return 0 on success otherwise -1 */ -int process_ops_to_enqueue(const struct ccp_qp *qp, +int process_ops_to_enqueue(struct ccp_qp *qp, struct rte_crypto_op **op, struct ccp_queue *cmd_q, uint16_t nb_ops, diff --git a/drivers/crypto/ccp/ccp_pmd_ops.c b/drivers/crypto/ccp/ccp_pmd_ops.c index 24ad961fbb..3d0d8758c4 100644 --- a/drivers/crypto/ccp/ccp_pmd_ops.c +++ b/drivers/crypto/ccp/ccp_pmd_ops.c @@ -13,6 +13,29 @@ #include "ccp_crypto.h" static const struct rte_cryptodev_capabilities ccp_pmd_capabilities[] = { +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH + { /* MD5 HMAC */ + .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC, + {.sym = { + .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH, + {.auth = { + .algo = RTE_CRYPTO_AUTH_MD5_HMAC, + .block_size = 64, + .key_size = { + .min = 1, + .max = 64, + .increment = 1 + }, + .digest_size = { + .min = 16, + .max = 16, + .increment = 0 + }, + .aad_size = { 0 } + }, } + }, } + }, +#endif { /* SHA1 */ .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC, {.sym = { diff --git a/drivers/crypto/ccp/ccp_pmd_private.h b/drivers/crypto/ccp/ccp_pmd_private.h index 47c4fb2e76..560bed97cf 100644 --- a/drivers/crypto/ccp/ccp_pmd_private.h +++ b/drivers/crypto/ccp/ccp_pmd_private.h @@ -6,6 +6,7 @@ #define _CCP_PMD_PRIVATE_H_ #include +#include "ccp_crypto.h" #define CRYPTODEV_NAME_CCP_PMD crypto_ccp @@ -61,6 +62,10 @@ struct ccp_batch_info { phys_addr_t lsb_buf_phys; /**< LSB intermediate buf for passthru */ int lsb_buf_idx; +#ifdef RTE_LIBRTE_PMD_CCP_CPU_AUTH + uint16_t auth_ctr; + /**< auth only ops batch */ +#endif } __rte_cache_aligned; /**< CCP crypto queue pair */ @@ -81,6 +86,11 @@ struct ccp_qp { /**< Store ops pulled out of queue */ struct rte_cryptodev *dev; /**< rte crypto device to which this qp belongs */ + uint8_t temp_digest[DIGEST_LENGTH_MAX]; + /**< Buffer used to store the digest generated + * by the driver when verifying a digest provided + * by the user (using authentication verify operation) + */ } __rte_cache_aligned;