Imported Upstream version 16.04
[deb_dpdk.git] / drivers / crypto / qat / qat_crypto.c
diff --git a/drivers/crypto/qat/qat_crypto.c b/drivers/crypto/qat/qat_crypto.c
new file mode 100644 (file)
index 0000000..495ea1c
--- /dev/null
@@ -0,0 +1,900 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2015-2016 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *      * Redistributions of source code must retain the above copyright
+ *        notice, this list of conditions and the following disclaimer.
+ *      * 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.
+ *      * Neither the name of Intel Corporation nor the names of its
+ *        contributors may be used to endorse or promote products derived
+ *        from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
+ *   OWNER 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.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <strings.h>
+#include <string.h>
+#include <inttypes.h>
+#include <errno.h>
+#include <sys/queue.h>
+#include <stdarg.h>
+
+#include <rte_common.h>
+#include <rte_log.h>
+#include <rte_debug.h>
+#include <rte_memory.h>
+#include <rte_memzone.h>
+#include <rte_tailq.h>
+#include <rte_ether.h>
+#include <rte_malloc.h>
+#include <rte_launch.h>
+#include <rte_eal.h>
+#include <rte_per_lcore.h>
+#include <rte_lcore.h>
+#include <rte_atomic.h>
+#include <rte_branch_prediction.h>
+#include <rte_ring.h>
+#include <rte_mempool.h>
+#include <rte_mbuf.h>
+#include <rte_string_fns.h>
+#include <rte_spinlock.h>
+#include <rte_hexdump.h>
+
+#include "qat_logs.h"
+#include "qat_algs.h"
+#include "qat_crypto.h"
+#include "adf_transport_access_macros.h"
+
+#define BYTE_LENGTH    8
+
+static const struct rte_cryptodev_capabilities qat_pmd_capabilities[] = {
+       {       /* SHA1 HMAC */
+               .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
+               {.sym = {
+                       .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
+                       {.auth = {
+                               .algo = RTE_CRYPTO_AUTH_SHA1_HMAC,
+                               .block_size = 64,
+                               .key_size = {
+                                       .min = 64,
+                                       .max = 64,
+                                       .increment = 0
+                               },
+                               .digest_size = {
+                                       .min = 20,
+                                       .max = 20,
+                                       .increment = 0
+                               },
+                               .aad_size = { 0 }
+                       }, }
+               }, }
+       },
+       {       /* SHA256 HMAC */
+               .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
+               {.sym = {
+                       .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
+                       {.auth = {
+                               .algo = RTE_CRYPTO_AUTH_SHA256_HMAC,
+                               .block_size = 64,
+                               .key_size = {
+                                       .min = 64,
+                                       .max = 64,
+                                       .increment = 0
+                               },
+                               .digest_size = {
+                                       .min = 32,
+                                       .max = 32,
+                                       .increment = 0
+                               },
+                               .aad_size = { 0 }
+                       }, }
+               }, }
+       },
+       {       /* SHA512 HMAC */
+               .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
+               {.sym = {
+                       .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
+                       {.auth = {
+                               .algo = RTE_CRYPTO_AUTH_SHA512_HMAC,
+                               .block_size = 128,
+                               .key_size = {
+                                       .min = 128,
+                                       .max = 128,
+                                       .increment = 0
+                               },
+                               .digest_size = {
+                                       .min = 64,
+                                       .max = 64,
+                                       .increment = 0
+                               },
+                               .aad_size = { 0 }
+                       }, }
+               }, }
+       },
+       {       /* AES XCBC MAC */
+               .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
+               {.sym = {
+                       .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
+                       {.auth = {
+                               .algo = RTE_CRYPTO_AUTH_AES_XCBC_MAC,
+                               .block_size = 16,
+                               .key_size = {
+                                       .min = 16,
+                                       .max = 16,
+                                       .increment = 0
+                               },
+                               .digest_size = {
+                                       .min = 16,
+                                       .max = 16,
+                                       .increment = 0
+                               },
+                               .aad_size = { 0 }
+                       }, }
+               }, }
+       },
+       {       /* AES GCM (AUTH) */
+               .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
+               {.sym = {
+                       .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
+                       {.auth = {
+                               .algo = RTE_CRYPTO_AUTH_AES_GCM,
+                               .block_size = 16,
+                               .key_size = {
+                                       .min = 16,
+                                       .max = 32,
+                                       .increment = 8
+                               },
+                               .digest_size = {
+                                       .min = 8,
+                                       .max = 16,
+                                       .increment = 4
+                               },
+                               .aad_size = {
+                                       .min = 8,
+                                       .max = 12,
+                                       .increment = 4
+                               }
+                       }, }
+               }, }
+       },
+       {       /* SNOW3G (UIA2) */
+               .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
+               {.sym = {
+                       .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
+                       {.auth = {
+                               .algo = RTE_CRYPTO_AUTH_SNOW3G_UIA2,
+                               .block_size = 16,
+                               .key_size = {
+                                       .min = 16,
+                                       .max = 16,
+                                       .increment = 0
+                               },
+                               .digest_size = {
+                                       .min = 4,
+                                       .max = 4,
+                                       .increment = 0
+                               },
+                               .aad_size = {
+                                       .min = 16,
+                                       .max = 16,
+                                       .increment = 0
+                               }
+                       }, }
+               }, }
+       },
+       {       /* AES GCM (CIPHER) */
+               .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
+               {.sym = {
+                       .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
+                       {.cipher = {
+                               .algo = RTE_CRYPTO_CIPHER_AES_GCM,
+                               .block_size = 16,
+                               .key_size = {
+                                       .min = 16,
+                                       .max = 32,
+                                       .increment = 8
+                               },
+                               .iv_size = {
+                                       .min = 16,
+                                       .max = 16,
+                                       .increment = 0
+                               }
+                       }, }
+               }, }
+       },
+       {       /* AES CBC */
+               .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
+               {.sym = {
+                       .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
+                       {.cipher = {
+                               .algo = RTE_CRYPTO_CIPHER_AES_CBC,
+                               .block_size = 16,
+                               .key_size = {
+                                       .min = 16,
+                                       .max = 32,
+                                       .increment = 8
+                               },
+                               .iv_size = {
+                                       .min = 16,
+                                       .max = 16,
+                                       .increment = 0
+                               }
+                       }, }
+               }, }
+       },
+       {       /* SNOW3G (UEA2) */
+               .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
+               {.sym = {
+                       .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
+                       {.cipher = {
+                               .algo = RTE_CRYPTO_CIPHER_SNOW3G_UEA2,
+                               .block_size = 16,
+                               .key_size = {
+                                       .min = 16,
+                                       .max = 16,
+                                       .increment = 0
+                               },
+                               .iv_size = {
+                                       .min = 16,
+                                       .max = 16,
+                                       .increment = 0
+                               }
+                       }, }
+               }, }
+       },
+       RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
+};
+
+static inline uint32_t
+adf_modulo(uint32_t data, uint32_t shift);
+
+static inline int
+qat_write_hw_desc_entry(struct rte_crypto_op *op, uint8_t *out_msg);
+
+void qat_crypto_sym_clear_session(struct rte_cryptodev *dev,
+               void *session)
+{
+       struct qat_session *sess = session;
+       phys_addr_t cd_paddr = sess->cd_paddr;
+
+       PMD_INIT_FUNC_TRACE();
+       if (session) {
+               memset(sess, 0, qat_crypto_sym_get_session_private_size(dev));
+
+               sess->cd_paddr = cd_paddr;
+       }
+}
+
+static int
+qat_get_cmd_id(const struct rte_crypto_sym_xform *xform)
+{
+       /* Cipher Only */
+       if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER && xform->next == NULL)
+               return ICP_QAT_FW_LA_CMD_CIPHER;
+
+       /* Authentication Only */
+       if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH && xform->next == NULL)
+               return ICP_QAT_FW_LA_CMD_AUTH;
+
+       if (xform->next == NULL)
+               return -1;
+
+       /* Cipher then Authenticate */
+       if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
+                       xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH)
+               return ICP_QAT_FW_LA_CMD_CIPHER_HASH;
+
+       /* Authenticate then Cipher */
+       if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH &&
+                       xform->next->type == RTE_CRYPTO_SYM_XFORM_CIPHER)
+               return ICP_QAT_FW_LA_CMD_HASH_CIPHER;
+
+       return -1;
+}
+
+static struct rte_crypto_auth_xform *
+qat_get_auth_xform(struct rte_crypto_sym_xform *xform)
+{
+       do {
+               if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH)
+                       return &xform->auth;
+
+               xform = xform->next;
+       } while (xform);
+
+       return NULL;
+}
+
+static struct rte_crypto_cipher_xform *
+qat_get_cipher_xform(struct rte_crypto_sym_xform *xform)
+{
+       do {
+               if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER)
+                       return &xform->cipher;
+
+               xform = xform->next;
+       } while (xform);
+
+       return NULL;
+}
+void *
+qat_crypto_sym_configure_session_cipher(struct rte_cryptodev *dev,
+               struct rte_crypto_sym_xform *xform, void *session_private)
+{
+       struct qat_pmd_private *internals = dev->data->dev_private;
+
+       struct qat_session *session = session_private;
+
+       struct rte_crypto_cipher_xform *cipher_xform = NULL;
+
+       /* Get cipher xform from crypto xform chain */
+       cipher_xform = qat_get_cipher_xform(xform);
+
+       switch (cipher_xform->algo) {
+       case RTE_CRYPTO_CIPHER_AES_CBC:
+               if (qat_alg_validate_aes_key(cipher_xform->key.length,
+                               &session->qat_cipher_alg) != 0) {
+                       PMD_DRV_LOG(ERR, "Invalid AES cipher key size");
+                       goto error_out;
+               }
+               session->qat_mode = ICP_QAT_HW_CIPHER_CBC_MODE;
+               break;
+       case RTE_CRYPTO_CIPHER_AES_GCM:
+               if (qat_alg_validate_aes_key(cipher_xform->key.length,
+                               &session->qat_cipher_alg) != 0) {
+                       PMD_DRV_LOG(ERR, "Invalid AES cipher key size");
+                       goto error_out;
+               }
+               session->qat_mode = ICP_QAT_HW_CIPHER_CTR_MODE;
+               break;
+       case RTE_CRYPTO_CIPHER_SNOW3G_UEA2:
+               if (qat_alg_validate_snow3g_key(cipher_xform->key.length,
+                                       &session->qat_cipher_alg) != 0) {
+                       PMD_DRV_LOG(ERR, "Invalid SNOW3G cipher key size");
+                       goto error_out;
+               }
+               session->qat_mode = ICP_QAT_HW_CIPHER_ECB_MODE;
+               break;
+       case RTE_CRYPTO_CIPHER_NULL:
+       case RTE_CRYPTO_CIPHER_3DES_ECB:
+       case RTE_CRYPTO_CIPHER_3DES_CBC:
+       case RTE_CRYPTO_CIPHER_AES_ECB:
+       case RTE_CRYPTO_CIPHER_AES_CTR:
+       case RTE_CRYPTO_CIPHER_AES_CCM:
+       case RTE_CRYPTO_CIPHER_KASUMI_F8:
+               PMD_DRV_LOG(ERR, "Crypto: Unsupported Cipher alg %u",
+                               cipher_xform->algo);
+               goto error_out;
+       default:
+               PMD_DRV_LOG(ERR, "Crypto: Undefined Cipher specified %u\n",
+                               cipher_xform->algo);
+               goto error_out;
+       }
+
+       if (cipher_xform->op == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
+               session->qat_dir = ICP_QAT_HW_CIPHER_ENCRYPT;
+       else
+               session->qat_dir = ICP_QAT_HW_CIPHER_DECRYPT;
+
+       if (qat_alg_aead_session_create_content_desc_cipher(session,
+                                               cipher_xform->key.data,
+                                               cipher_xform->key.length))
+               goto error_out;
+
+       return session;
+
+error_out:
+       rte_mempool_put(internals->sess_mp, session);
+       return NULL;
+}
+
+
+void *
+qat_crypto_sym_configure_session(struct rte_cryptodev *dev,
+               struct rte_crypto_sym_xform *xform, void *session_private)
+{
+       struct qat_pmd_private *internals = dev->data->dev_private;
+
+       struct qat_session *session = session_private;
+
+       int qat_cmd_id;
+
+       PMD_INIT_FUNC_TRACE();
+
+       /* Get requested QAT command id */
+       qat_cmd_id = qat_get_cmd_id(xform);
+       if (qat_cmd_id < 0 || qat_cmd_id >= ICP_QAT_FW_LA_CMD_DELIMITER) {
+               PMD_DRV_LOG(ERR, "Unsupported xform chain requested");
+               goto error_out;
+       }
+       session->qat_cmd = (enum icp_qat_fw_la_cmd_id)qat_cmd_id;
+       switch (session->qat_cmd) {
+       case ICP_QAT_FW_LA_CMD_CIPHER:
+       session = qat_crypto_sym_configure_session_cipher(dev, xform, session);
+               break;
+       case ICP_QAT_FW_LA_CMD_AUTH:
+       session = qat_crypto_sym_configure_session_auth(dev, xform, session);
+               break;
+       case ICP_QAT_FW_LA_CMD_CIPHER_HASH:
+       session = qat_crypto_sym_configure_session_cipher(dev, xform, session);
+       session = qat_crypto_sym_configure_session_auth(dev, xform, session);
+               break;
+       case ICP_QAT_FW_LA_CMD_HASH_CIPHER:
+       session = qat_crypto_sym_configure_session_auth(dev, xform, session);
+       session = qat_crypto_sym_configure_session_cipher(dev, xform, session);
+               break;
+       case ICP_QAT_FW_LA_CMD_TRNG_GET_RANDOM:
+       case ICP_QAT_FW_LA_CMD_TRNG_TEST:
+       case ICP_QAT_FW_LA_CMD_SSL3_KEY_DERIVE:
+       case ICP_QAT_FW_LA_CMD_TLS_V1_1_KEY_DERIVE:
+       case ICP_QAT_FW_LA_CMD_TLS_V1_2_KEY_DERIVE:
+       case ICP_QAT_FW_LA_CMD_MGF1:
+       case ICP_QAT_FW_LA_CMD_AUTH_PRE_COMP:
+       case ICP_QAT_FW_LA_CMD_CIPHER_PRE_COMP:
+       case ICP_QAT_FW_LA_CMD_DELIMITER:
+       PMD_DRV_LOG(ERR, "Unsupported Service %u",
+               session->qat_cmd);
+               goto error_out;
+       default:
+       PMD_DRV_LOG(ERR, "Unsupported Service %u",
+               session->qat_cmd);
+               goto error_out;
+       }
+       return session;
+
+error_out:
+       rte_mempool_put(internals->sess_mp, session);
+       return NULL;
+}
+
+struct qat_session *
+qat_crypto_sym_configure_session_auth(struct rte_cryptodev *dev,
+                               struct rte_crypto_sym_xform *xform,
+                               struct qat_session *session_private)
+{
+
+       struct qat_pmd_private *internals = dev->data->dev_private;
+       struct qat_session *session = session_private;
+       struct rte_crypto_auth_xform *auth_xform = NULL;
+       struct rte_crypto_cipher_xform *cipher_xform = NULL;
+       auth_xform = qat_get_auth_xform(xform);
+
+       switch (auth_xform->algo) {
+       case RTE_CRYPTO_AUTH_SHA1_HMAC:
+               session->qat_hash_alg = ICP_QAT_HW_AUTH_ALGO_SHA1;
+               break;
+       case RTE_CRYPTO_AUTH_SHA256_HMAC:
+               session->qat_hash_alg = ICP_QAT_HW_AUTH_ALGO_SHA256;
+               break;
+       case RTE_CRYPTO_AUTH_SHA512_HMAC:
+               session->qat_hash_alg = ICP_QAT_HW_AUTH_ALGO_SHA512;
+               break;
+       case RTE_CRYPTO_AUTH_AES_XCBC_MAC:
+               session->qat_hash_alg = ICP_QAT_HW_AUTH_ALGO_AES_XCBC_MAC;
+               break;
+       case RTE_CRYPTO_AUTH_AES_GCM:
+               session->qat_hash_alg = ICP_QAT_HW_AUTH_ALGO_GALOIS_128;
+               break;
+       case RTE_CRYPTO_AUTH_SNOW3G_UIA2:
+               session->qat_hash_alg = ICP_QAT_HW_AUTH_ALGO_SNOW_3G_UIA2;
+               break;
+       case RTE_CRYPTO_AUTH_NULL:
+       case RTE_CRYPTO_AUTH_SHA1:
+       case RTE_CRYPTO_AUTH_SHA256:
+       case RTE_CRYPTO_AUTH_SHA512:
+       case RTE_CRYPTO_AUTH_SHA224:
+       case RTE_CRYPTO_AUTH_SHA224_HMAC:
+       case RTE_CRYPTO_AUTH_SHA384:
+       case RTE_CRYPTO_AUTH_SHA384_HMAC:
+       case RTE_CRYPTO_AUTH_MD5:
+       case RTE_CRYPTO_AUTH_MD5_HMAC:
+       case RTE_CRYPTO_AUTH_AES_CCM:
+       case RTE_CRYPTO_AUTH_AES_GMAC:
+       case RTE_CRYPTO_AUTH_KASUMI_F9:
+       case RTE_CRYPTO_AUTH_AES_CMAC:
+       case RTE_CRYPTO_AUTH_AES_CBC_MAC:
+       case RTE_CRYPTO_AUTH_ZUC_EIA3:
+               PMD_DRV_LOG(ERR, "Crypto: Unsupported hash alg %u",
+                               auth_xform->algo);
+               goto error_out;
+       default:
+               PMD_DRV_LOG(ERR, "Crypto: Undefined Hash algo %u specified",
+                               auth_xform->algo);
+               goto error_out;
+       }
+       cipher_xform = qat_get_cipher_xform(xform);
+
+       if ((session->qat_hash_alg == ICP_QAT_HW_AUTH_ALGO_GALOIS_128) ||
+                       (session->qat_hash_alg ==
+                               ICP_QAT_HW_AUTH_ALGO_GALOIS_64))  {
+               if (qat_alg_aead_session_create_content_desc_auth(session,
+                               cipher_xform->key.data,
+                               cipher_xform->key.length,
+                               auth_xform->add_auth_data_length,
+                               auth_xform->digest_length))
+                       goto error_out;
+       } else {
+               if (qat_alg_aead_session_create_content_desc_auth(session,
+                               auth_xform->key.data,
+                               auth_xform->key.length,
+                               auth_xform->add_auth_data_length,
+                               auth_xform->digest_length))
+                       goto error_out;
+       }
+       return session;
+
+error_out:
+       rte_mempool_put(internals->sess_mp, session);
+       return NULL;
+}
+
+unsigned qat_crypto_sym_get_session_private_size(
+               struct rte_cryptodev *dev __rte_unused)
+{
+       return RTE_ALIGN_CEIL(sizeof(struct qat_session), 8);
+}
+
+
+uint16_t
+qat_pmd_enqueue_op_burst(void *qp, struct rte_crypto_op **ops,
+               uint16_t nb_ops)
+{
+       register struct qat_queue *queue;
+       struct qat_qp *tmp_qp = (struct qat_qp *)qp;
+       register uint32_t nb_ops_sent = 0;
+       register struct rte_crypto_op **cur_op = ops;
+       register int ret;
+       uint16_t nb_ops_possible = nb_ops;
+       register uint8_t *base_addr;
+       register uint32_t tail;
+       int overflow;
+
+       if (unlikely(nb_ops == 0))
+               return 0;
+
+       /* read params used a lot in main loop into registers */
+       queue = &(tmp_qp->tx_q);
+       base_addr = (uint8_t *)queue->base_addr;
+       tail = queue->tail;
+
+       /* Find how many can actually fit on the ring */
+       overflow = rte_atomic16_add_return(&tmp_qp->inflights16, nb_ops)
+                               - queue->max_inflights;
+       if (overflow > 0) {
+               rte_atomic16_sub(&tmp_qp->inflights16, overflow);
+               nb_ops_possible = nb_ops - overflow;
+               if (nb_ops_possible == 0)
+                       return 0;
+       }
+
+       while (nb_ops_sent != nb_ops_possible) {
+               ret = qat_write_hw_desc_entry(*cur_op, base_addr + tail);
+               if (ret != 0) {
+                       tmp_qp->stats.enqueue_err_count++;
+                       if (nb_ops_sent == 0)
+                               return 0;
+                       goto kick_tail;
+               }
+
+               tail = adf_modulo(tail + queue->msg_size, queue->modulo);
+               nb_ops_sent++;
+               cur_op++;
+       }
+kick_tail:
+       WRITE_CSR_RING_TAIL(tmp_qp->mmap_bar_addr, queue->hw_bundle_number,
+                       queue->hw_queue_number, tail);
+       queue->tail = tail;
+       tmp_qp->stats.enqueued_count += nb_ops_sent;
+       return nb_ops_sent;
+}
+
+uint16_t
+qat_pmd_dequeue_op_burst(void *qp, struct rte_crypto_op **ops,
+               uint16_t nb_ops)
+{
+       struct qat_queue *queue;
+       struct qat_qp *tmp_qp = (struct qat_qp *)qp;
+       uint32_t msg_counter = 0;
+       struct rte_crypto_op *rx_op;
+       struct icp_qat_fw_comn_resp *resp_msg;
+
+       queue = &(tmp_qp->rx_q);
+       resp_msg = (struct icp_qat_fw_comn_resp *)
+                       ((uint8_t *)queue->base_addr + queue->head);
+
+       while (*(uint32_t *)resp_msg != ADF_RING_EMPTY_SIG &&
+                       msg_counter != nb_ops) {
+               rx_op = (struct rte_crypto_op *)(uintptr_t)
+                               (resp_msg->opaque_data);
+
+#ifdef RTE_LIBRTE_PMD_QAT_DEBUG_RX
+               rte_hexdump(stdout, "qat_response:", (uint8_t *)resp_msg,
+                               sizeof(struct icp_qat_fw_comn_resp));
+#endif
+               if (ICP_QAT_FW_COMN_STATUS_FLAG_OK !=
+                               ICP_QAT_FW_COMN_RESP_CRYPTO_STAT_GET(
+                                       resp_msg->comn_hdr.comn_status)) {
+                       rx_op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
+               } else {
+                       rx_op->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
+               }
+               *(uint32_t *)resp_msg = ADF_RING_EMPTY_SIG;
+               queue->head = adf_modulo(queue->head +
+                               queue->msg_size,
+                               ADF_RING_SIZE_MODULO(queue->queue_size));
+               resp_msg = (struct icp_qat_fw_comn_resp *)
+                                       ((uint8_t *)queue->base_addr +
+                                                       queue->head);
+               *ops = rx_op;
+               ops++;
+               msg_counter++;
+       }
+       if (msg_counter > 0) {
+               WRITE_CSR_RING_HEAD(tmp_qp->mmap_bar_addr,
+                                       queue->hw_bundle_number,
+                                       queue->hw_queue_number, queue->head);
+               rte_atomic16_sub(&tmp_qp->inflights16, msg_counter);
+               tmp_qp->stats.dequeued_count += msg_counter;
+       }
+       return msg_counter;
+}
+
+static inline int
+qat_write_hw_desc_entry(struct rte_crypto_op *op, uint8_t *out_msg)
+{
+       struct qat_session *ctx;
+       struct icp_qat_fw_la_cipher_req_params *cipher_param;
+       struct icp_qat_fw_la_auth_req_params *auth_param;
+       register struct icp_qat_fw_la_bulk_req *qat_req;
+
+#ifdef RTE_LIBRTE_PMD_QAT_DEBUG_TX
+       if (unlikely(op->type != RTE_CRYPTO_OP_TYPE_SYMMETRIC)) {
+               PMD_DRV_LOG(ERR, "QAT PMD only supports symmetric crypto "
+                               "operation requests, op (%p) is not a "
+                               "symmetric operation.", op);
+               return -EINVAL;
+       }
+#endif
+       if (unlikely(op->sym->sess_type == RTE_CRYPTO_SYM_OP_SESSIONLESS)) {
+               PMD_DRV_LOG(ERR, "QAT PMD only supports session oriented"
+                               " requests, op (%p) is sessionless.", op);
+               return -EINVAL;
+       }
+
+       if (unlikely(op->sym->session->dev_type != RTE_CRYPTODEV_QAT_SYM_PMD)) {
+               PMD_DRV_LOG(ERR, "Session was not created for this device");
+               return -EINVAL;
+       }
+
+       ctx = (struct qat_session *)op->sym->session->_private;
+       qat_req = (struct icp_qat_fw_la_bulk_req *)out_msg;
+       *qat_req = ctx->fw_req;
+       qat_req->comn_mid.opaque_data = (uint64_t)(uintptr_t)op;
+
+       qat_req->comn_mid.dst_length =
+               qat_req->comn_mid.src_length =
+                               rte_pktmbuf_data_len(op->sym->m_src);
+
+       qat_req->comn_mid.dest_data_addr =
+               qat_req->comn_mid.src_data_addr =
+                           rte_pktmbuf_mtophys(op->sym->m_src);
+
+       if (unlikely(op->sym->m_dst != NULL)) {
+               qat_req->comn_mid.dest_data_addr =
+                               rte_pktmbuf_mtophys(op->sym->m_dst);
+               qat_req->comn_mid.dst_length =
+                               rte_pktmbuf_data_len(op->sym->m_dst);
+       }
+
+       cipher_param = (void *)&qat_req->serv_specif_rqpars;
+       auth_param = (void *)((uint8_t *)cipher_param + sizeof(*cipher_param));
+
+       cipher_param->cipher_length = op->sym->cipher.data.length;
+       cipher_param->cipher_offset = op->sym->cipher.data.offset;
+       if (ctx->qat_cipher_alg == ICP_QAT_HW_CIPHER_ALGO_SNOW_3G_UEA2) {
+               if (unlikely((cipher_param->cipher_length % BYTE_LENGTH != 0) ||
+                               (cipher_param->cipher_offset
+                                       % BYTE_LENGTH != 0))) {
+                       PMD_DRV_LOG(ERR, " For Snow3g, QAT PMD only "
+                               "supports byte aligned values");
+                       op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
+                       return -EINVAL;
+               }
+               cipher_param->cipher_length >>= 3;
+               cipher_param->cipher_offset >>= 3;
+       }
+
+       if (op->sym->cipher.iv.length && (op->sym->cipher.iv.length <=
+                       sizeof(cipher_param->u.cipher_IV_array))) {
+               rte_memcpy(cipher_param->u.cipher_IV_array,
+                               op->sym->cipher.iv.data,
+                               op->sym->cipher.iv.length);
+       } else {
+               ICP_QAT_FW_LA_CIPH_IV_FLD_FLAG_SET(
+                               qat_req->comn_hdr.serv_specif_flags,
+                               ICP_QAT_FW_CIPH_IV_64BIT_PTR);
+               cipher_param->u.s.cipher_IV_ptr = op->sym->cipher.iv.phys_addr;
+       }
+       if (op->sym->auth.digest.phys_addr) {
+               ICP_QAT_FW_LA_DIGEST_IN_BUFFER_SET(
+                               qat_req->comn_hdr.serv_specif_flags,
+                               ICP_QAT_FW_LA_NO_DIGEST_IN_BUFFER);
+               auth_param->auth_res_addr = op->sym->auth.digest.phys_addr;
+       }
+       auth_param->auth_off = op->sym->auth.data.offset;
+       auth_param->auth_len = op->sym->auth.data.length;
+       if (ctx->qat_hash_alg == ICP_QAT_HW_AUTH_ALGO_SNOW_3G_UIA2) {
+               if (unlikely((auth_param->auth_off % BYTE_LENGTH != 0) ||
+                               (auth_param->auth_len % BYTE_LENGTH != 0))) {
+                       PMD_DRV_LOG(ERR, " For Snow3g, QAT PMD only "
+                               "supports byte aligned values");
+                       op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
+                       return -EINVAL;
+               }
+               auth_param->auth_off >>= 3;
+               auth_param->auth_len >>= 3;
+       }
+       auth_param->u1.aad_adr = op->sym->auth.aad.phys_addr;
+       /* (GCM) aad length(240 max) will be at this location after precompute */
+       if (ctx->qat_hash_alg == ICP_QAT_HW_AUTH_ALGO_GALOIS_128 ||
+                       ctx->qat_hash_alg == ICP_QAT_HW_AUTH_ALGO_GALOIS_64) {
+               struct icp_qat_hw_auth_algo_blk *hash;
+
+               if (ctx->qat_cmd == ICP_QAT_FW_LA_CMD_HASH_CIPHER)
+                       hash = (struct icp_qat_hw_auth_algo_blk *)((char *)&ctx->cd);
+               else
+                       hash = (struct icp_qat_hw_auth_algo_blk *)((char *)&ctx->cd +
+                               sizeof(struct icp_qat_hw_cipher_algo_blk));
+
+               auth_param->u2.aad_sz = ALIGN_POW2_ROUNDUP(hash->sha.state1[
+                                       ICP_QAT_HW_GALOIS_128_STATE1_SZ +
+                                       ICP_QAT_HW_GALOIS_H_SZ + 3], 16);
+               if (op->sym->cipher.iv.length == 12) {
+                       /*
+                        * For GCM a 12 bit IV is allowed,
+                        * but we need to inform the f/w
+                        */
+                       ICP_QAT_FW_LA_GCM_IV_LEN_FLAG_SET(
+                               qat_req->comn_hdr.serv_specif_flags,
+                               ICP_QAT_FW_LA_GCM_IV_LEN_12_OCTETS);
+               }
+       }
+       auth_param->hash_state_sz = (auth_param->u2.aad_sz) >> 3;
+
+
+#ifdef RTE_LIBRTE_PMD_QAT_DEBUG_TX
+       rte_hexdump(stdout, "qat_req:", qat_req,
+                       sizeof(struct icp_qat_fw_la_bulk_req));
+       rte_hexdump(stdout, "src_data:",
+                       rte_pktmbuf_mtod(op->sym->m_src, uint8_t*),
+                       rte_pktmbuf_data_len(op->sym->m_src));
+       rte_hexdump(stdout, "iv:", op->sym->cipher.iv.data,
+                       op->sym->cipher.iv.length);
+       rte_hexdump(stdout, "digest:", op->sym->auth.digest.data,
+                       op->sym->auth.digest.length);
+       rte_hexdump(stdout, "aad:", op->sym->auth.aad.data,
+                       op->sym->auth.aad.length);
+#endif
+       return 0;
+}
+
+static inline uint32_t adf_modulo(uint32_t data, uint32_t shift)
+{
+       uint32_t div = data >> shift;
+       uint32_t mult = div << shift;
+
+       return data - mult;
+}
+
+void qat_crypto_sym_session_init(struct rte_mempool *mp, void *priv_sess)
+{
+       struct qat_session *s = priv_sess;
+
+       PMD_INIT_FUNC_TRACE();
+       s->cd_paddr = rte_mempool_virt2phy(mp, &s->cd);
+}
+
+int qat_dev_config(__rte_unused struct rte_cryptodev *dev)
+{
+       PMD_INIT_FUNC_TRACE();
+       return -ENOTSUP;
+}
+
+int qat_dev_start(__rte_unused struct rte_cryptodev *dev)
+{
+       PMD_INIT_FUNC_TRACE();
+       return 0;
+}
+
+void qat_dev_stop(__rte_unused struct rte_cryptodev *dev)
+{
+       PMD_INIT_FUNC_TRACE();
+}
+
+int qat_dev_close(struct rte_cryptodev *dev)
+{
+       int i, ret;
+
+       PMD_INIT_FUNC_TRACE();
+
+       for (i = 0; i < dev->data->nb_queue_pairs; i++) {
+               ret = qat_crypto_sym_qp_release(dev, i);
+               if (ret < 0)
+                       return ret;
+       }
+
+       return 0;
+}
+
+void qat_dev_info_get(__rte_unused struct rte_cryptodev *dev,
+                               struct rte_cryptodev_info *info)
+{
+       struct qat_pmd_private *internals = dev->data->dev_private;
+
+       PMD_INIT_FUNC_TRACE();
+       if (info != NULL) {
+               info->max_nb_queue_pairs =
+                               ADF_NUM_SYM_QPS_PER_BUNDLE *
+                               ADF_NUM_BUNDLES_PER_DEV;
+               info->feature_flags = dev->feature_flags;
+               info->capabilities = qat_pmd_capabilities;
+               info->sym.max_nb_sessions = internals->max_nb_sessions;
+               info->dev_type = RTE_CRYPTODEV_QAT_SYM_PMD;
+       }
+}
+
+void qat_crypto_sym_stats_get(struct rte_cryptodev *dev,
+               struct rte_cryptodev_stats *stats)
+{
+       int i;
+       struct qat_qp **qp = (struct qat_qp **)(dev->data->queue_pairs);
+
+       PMD_INIT_FUNC_TRACE();
+       if (stats == NULL) {
+               PMD_DRV_LOG(ERR, "invalid stats ptr NULL");
+               return;
+       }
+       for (i = 0; i < dev->data->nb_queue_pairs; i++) {
+               if (qp[i] == NULL) {
+                       PMD_DRV_LOG(DEBUG, "Uninitialised queue pair");
+                       continue;
+               }
+
+               stats->enqueued_count += qp[i]->stats.enqueued_count;
+               stats->dequeued_count += qp[i]->stats.enqueued_count;
+               stats->enqueue_err_count += qp[i]->stats.enqueue_err_count;
+               stats->dequeue_err_count += qp[i]->stats.enqueue_err_count;
+       }
+}
+
+void qat_crypto_sym_stats_reset(struct rte_cryptodev *dev)
+{
+       int i;
+       struct qat_qp **qp = (struct qat_qp **)(dev->data->queue_pairs);
+
+       PMD_INIT_FUNC_TRACE();
+       for (i = 0; i < dev->data->nb_queue_pairs; i++)
+               memset(&(qp[i]->stats), 0, sizeof(qp[i]->stats));
+       PMD_DRV_LOG(DEBUG, "QAT crypto: stats cleared");
+}