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-rw-r--r--src/crypto/qat/CMakeLists.txt25
-rw-r--r--src/crypto/qat/qat_crypto_accel.cc42
-rw-r--r--src/crypto/qat/qat_crypto_accel.h35
-rw-r--r--src/crypto/qat/qat_crypto_plugin.cc35
-rw-r--r--src/crypto/qat/qat_crypto_plugin.h43
-rw-r--r--src/crypto/qat/qcccrypto.cc469
-rw-r--r--src/crypto/qat/qcccrypto.h176
7 files changed, 825 insertions, 0 deletions
diff --git a/src/crypto/qat/CMakeLists.txt b/src/crypto/qat/CMakeLists.txt
new file mode 100644
index 000000000..ea4c1e25d
--- /dev/null
+++ b/src/crypto/qat/CMakeLists.txt
@@ -0,0 +1,25 @@
+##
+# QAT wrapper for Ceph
+##
+
+# Build QAT driver library first
+include(BuildQatDrv)
+
+set(qat_crypto_plugin_srcs
+ qat_crypto_accel.cc
+ qat_crypto_plugin.cc
+ qcccrypto.cc)
+
+add_library(ceph_crypto_qat SHARED ${qat_crypto_plugin_srcs})
+add_dependencies(ceph_crypto_qat QatDrv)
+target_include_directories(ceph_crypto_qat PRIVATE
+ ${EXTRA_LIBS}
+ ${QatDrv_INCLUDE_DIRS})
+
+add_dependencies(crypto_plugins ceph_crypto_qat)
+
+target_link_libraries(ceph_crypto_qat
+ ${QatDrv_LIBRARIES})
+add_dependencies(crypto_plugins ceph_crypto_qat)
+set_target_properties(ceph_crypto_qat PROPERTIES VERSION 1.0.0 SOVERSION 1)
+install(TARGETS ceph_crypto_qat DESTINATION ${crypto_plugin_dir})
diff --git a/src/crypto/qat/qat_crypto_accel.cc b/src/crypto/qat/qat_crypto_accel.cc
new file mode 100644
index 000000000..23f86edfa
--- /dev/null
+++ b/src/crypto/qat/qat_crypto_accel.cc
@@ -0,0 +1,42 @@
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2017 Intel Corporation
+ *
+ * Author: Qiaowei Ren <qiaowei.ren@intel.com>
+ * Author: Ganesh Mahalingam <ganesh.mahalingam@intel.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ */
+
+#include "crypto/qat/qat_crypto_accel.h"
+
+bool QccCryptoAccel::cbc_encrypt(unsigned char* out, const unsigned char* in, size_t size,
+ const unsigned char (&iv)[AES_256_IVSIZE],
+ const unsigned char (&key)[AES_256_KEYSIZE])
+{
+ if ((size % AES_256_IVSIZE) != 0) {
+ return false;
+ }
+
+ return qcccrypto.perform_op(out, in, size,
+ const_cast<unsigned char *>(&iv[0]),
+ const_cast<unsigned char *>(&key[0]), CPA_CY_SYM_CIPHER_DIRECTION_ENCRYPT);
+}
+
+bool QccCryptoAccel::cbc_decrypt(unsigned char* out, const unsigned char* in, size_t size,
+ const unsigned char (&iv)[AES_256_IVSIZE],
+ const unsigned char (&key)[AES_256_KEYSIZE])
+{
+ if ((size % AES_256_IVSIZE) != 0) {
+ return false;
+ }
+
+ return qcccrypto.perform_op(out, in, size,
+ const_cast<unsigned char *>(&iv[0]),
+ const_cast<unsigned char *>(&key[0]), CPA_CY_SYM_CIPHER_DIRECTION_DECRYPT);
+}
diff --git a/src/crypto/qat/qat_crypto_accel.h b/src/crypto/qat/qat_crypto_accel.h
new file mode 100644
index 000000000..5badefc28
--- /dev/null
+++ b/src/crypto/qat/qat_crypto_accel.h
@@ -0,0 +1,35 @@
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2017 Intel Corporation
+ *
+ * Author: Qiaowei Ren <qiaowei.ren@intel.com>
+ * Author: Ganesh Mahalingam <ganesh.mahalingam@intel.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ */
+
+#ifndef QAT_CRYPTO_ACCEL_H
+#define QAT_CRYPTO_ACCEL_H
+
+#include "crypto/crypto_accel.h"
+#include "crypto/qat/qcccrypto.h"
+
+class QccCryptoAccel : public CryptoAccel {
+ public:
+ QccCrypto qcccrypto;
+ QccCryptoAccel() { qcccrypto.init(); };
+ ~QccCryptoAccel() { qcccrypto.destroy(); };
+
+ bool cbc_encrypt(unsigned char* out, const unsigned char* in, size_t size,
+ const unsigned char (&iv)[AES_256_IVSIZE],
+ const unsigned char (&key)[AES_256_KEYSIZE]) override;
+ bool cbc_decrypt(unsigned char* out, const unsigned char* in, size_t size,
+ const unsigned char (&iv)[AES_256_IVSIZE],
+ const unsigned char (&key)[AES_256_KEYSIZE]) override;
+};
+#endif
diff --git a/src/crypto/qat/qat_crypto_plugin.cc b/src/crypto/qat/qat_crypto_plugin.cc
new file mode 100644
index 000000000..4bf3d61bb
--- /dev/null
+++ b/src/crypto/qat/qat_crypto_plugin.cc
@@ -0,0 +1,35 @@
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2017 Intel Corporation
+ *
+ * Author: Qiaowei Ren <qiaowei.ren@intel.com>
+ * Author: Ganesh Mahalingam <ganesh.mahalingam@intel.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ */
+
+
+#include "crypto/qat/qat_crypto_plugin.h"
+
+#include "ceph_ver.h"
+
+std::mutex QccCryptoPlugin::qat_init;
+
+const char *__ceph_plugin_version()
+{
+ return CEPH_GIT_NICE_VER;
+}
+
+int __ceph_plugin_init(CephContext *cct,
+ const std::string& type,
+ const std::string& name)
+{
+ PluginRegistry *instance = cct->get_plugin_registry();
+
+ return instance->add(type, name, new QccCryptoPlugin(cct));
+}
diff --git a/src/crypto/qat/qat_crypto_plugin.h b/src/crypto/qat/qat_crypto_plugin.h
new file mode 100644
index 000000000..736f14706
--- /dev/null
+++ b/src/crypto/qat/qat_crypto_plugin.h
@@ -0,0 +1,43 @@
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2017 Intel Corporation
+ *
+ * Author: Qiaowei Ren <qiaowei.ren@intel.com>
+ * Author: Ganesh Mahalingam <ganesh.mahalingam@intel.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ */
+
+#ifndef QAT_CRYPTO_PLUGIN_H
+#define QAT_CRYPTO_PLUGIN_H
+
+#include "crypto/crypto_plugin.h"
+#include "crypto/qat/qat_crypto_accel.h"
+
+
+class QccCryptoPlugin : public CryptoPlugin {
+ static std::mutex qat_init;
+
+public:
+
+ explicit QccCryptoPlugin(CephContext* cct) : CryptoPlugin(cct)
+ {}
+ ~QccCryptoPlugin()
+ {}
+ virtual int factory(CryptoAccelRef *cs,
+ ostream *ss)
+ {
+ std::lock_guard<std::mutex> l(qat_init);
+ if (cryptoaccel == nullptr)
+ cryptoaccel = CryptoAccelRef(new QccCryptoAccel);
+
+ *cs = cryptoaccel;
+ return 0;
+ }
+};
+#endif
diff --git a/src/crypto/qat/qcccrypto.cc b/src/crypto/qat/qcccrypto.cc
new file mode 100644
index 000000000..410727d3b
--- /dev/null
+++ b/src/crypto/qat/qcccrypto.cc
@@ -0,0 +1,469 @@
+#include "qcccrypto.h"
+#include <iostream>
+#include "string.h"
+#include <pthread.h>
+#include "common/debug.h"
+#include "include/scope_guard.h"
+
+// -----------------------------------------------------------------------------
+#define dout_context g_ceph_context
+#define dout_subsys ceph_subsys_rgw
+#undef dout_prefix
+#define dout_prefix _prefix(_dout)
+
+static ostream&
+_prefix(std::ostream* _dout)
+{
+ return *_dout << "QccCrypto: ";
+}
+// -----------------------------------------------------------------------------
+
+/*
+ * Poller thread & functions
+*/
+static std::mutex qcc_alloc_mutex;
+static std::mutex qcc_eng_mutex;
+static std::atomic<bool> init_called = { false };
+
+void* QccCrypto::crypt_thread(void *args) {
+ struct qcc_thread_args *thread_args = (struct qcc_thread_args *)args;
+ thread_args->qccinstance->do_crypt(thread_args);
+}
+
+void QccCrypto::QccFreeInstance(int entry) {
+ std::lock_guard<std::mutex> freeinst(qcc_alloc_mutex);
+ open_instances.push(entry);
+}
+
+int QccCrypto::QccGetFreeInstance() {
+ int ret = -1;
+ std::lock_guard<std::mutex> getinst(qcc_alloc_mutex);
+ if (!open_instances.empty()) {
+ ret = open_instances.front();
+ open_instances.pop();
+ }
+ return ret;
+}
+
+void QccCrypto::cleanup() {
+ icp_sal_userStop();
+ qaeMemDestroy();
+ is_init = false;
+ init_stat = stat;
+ init_called = false;
+ derr << "Failure during QAT init sequence. Quitting" << dendl;
+}
+
+/*
+ * We initialize QAT instance and everything that is common for all ops
+*/
+bool QccCrypto::init()
+{
+
+ std::lock_guard<std::mutex> l(qcc_eng_mutex);
+
+ if(init_called) {
+ dout(10) << "Init sequence already called. Skipping duplicate call" << dendl;
+ return true;
+ }
+
+ // First call to init
+ dout(15) << "First init for QAT" << dendl;
+ init_called = true;
+
+ // Find if the usermode memory driver is available. We need to this to
+ // create contiguous memory needed by QAT.
+ stat = qaeMemInit();
+ if(stat != CPA_STATUS_SUCCESS) {
+ derr << "Unable to load memory driver" << dendl;
+ this->cleanup();
+ return false;
+ }
+
+ stat = icp_sal_userStart("CEPH");
+ if(stat != CPA_STATUS_SUCCESS) {
+ derr << "Unable to start qat device" << dendl;
+ this->cleanup();
+ return false;
+ }
+
+ qcc_os_mem_alloc((void **)&qcc_inst, sizeof(QCCINST));
+ if(qcc_inst == NULL) {
+ derr << "Unable to alloc mem for instance struct" << dendl;
+ this->cleanup();
+ return false;
+ }
+
+ // Initialize contents of qcc_inst
+ qcc_inst->num_instances = 0;
+ qcc_inst->cy_inst_handles = NULL;
+
+ stat = cpaCyGetNumInstances(&(qcc_inst->num_instances));
+ if ((stat != CPA_STATUS_SUCCESS) || (qcc_inst->num_instances <= 0)) {
+ derr << "Unable to find available instances" << dendl;
+ this->cleanup();
+ return false;
+ }
+
+ qcc_os_mem_alloc((void **)&qcc_inst->cy_inst_handles,
+ ((int)qcc_inst->num_instances * sizeof(CpaInstanceHandle)));
+ if (qcc_inst->cy_inst_handles == NULL) {
+ derr << "Unable to allocate instances array memory" << dendl;
+ this->cleanup();
+ return false;
+ }
+
+ stat = cpaCyGetInstances(qcc_inst->num_instances, qcc_inst->cy_inst_handles);
+ if (stat != CPA_STATUS_SUCCESS) {
+ derr << "Unable to get instances" << dendl;
+ this->cleanup();
+ return false;
+ }
+
+ int iter = 0;
+ //Start Instances
+ for(iter = 0; iter < qcc_inst->num_instances; iter++) {
+ stat = cpaCyStartInstance(qcc_inst->cy_inst_handles[iter]);
+ if(stat != CPA_STATUS_SUCCESS) {
+ derr << "Unable to start instance" << dendl;
+ this->cleanup();
+ return false;
+ }
+ }
+
+ qcc_os_mem_alloc((void **)&qcc_inst->is_polled,
+ ((int)qcc_inst->num_instances * sizeof(CpaBoolean)));
+ CpaInstanceInfo2 info;
+ for(iter = 0; iter < qcc_inst->num_instances; iter++) {
+ qcc_inst->is_polled[iter] = cpaCyInstanceGetInfo2(qcc_inst->cy_inst_handles[iter],
+ &info) == CPA_STATUS_SUCCESS ? info.isPolled : CPA_FALSE;
+ }
+
+ // Allocate memory structures for all instances
+ qcc_os_mem_alloc((void **)&qcc_sess,
+ ((int)qcc_inst->num_instances * sizeof(QCCSESS)));
+ if(qcc_sess == NULL) {
+ derr << "Unable to allocate memory for session struct" << dendl;
+ this->cleanup();
+ return false;
+ }
+
+ qcc_os_mem_alloc((void **)&qcc_op_mem,
+ ((int)qcc_inst->num_instances * sizeof(QCCOPMEM)));
+ if(qcc_sess == NULL) {
+ derr << "Unable to allocate memory for opmem struct" << dendl;
+ this->cleanup();
+ return false;
+ }
+
+ qcc_os_mem_alloc((void **)&cypollthreads,
+ ((int)qcc_inst->num_instances * sizeof(pthread_t)));
+ if(cypollthreads == NULL) {
+ derr << "Unable to allocate memory for pthreads" << dendl;
+ this->cleanup();
+ return false;
+ }
+
+ //At this point we are only doing an user-space version.
+ //To-Do: Maybe a kernel based one
+ for(iter = 0; iter < qcc_inst->num_instances; iter++) {
+ stat = cpaCySetAddressTranslation(qcc_inst->cy_inst_handles[iter],
+ qaeVirtToPhysNUMA);
+ if(stat == CPA_STATUS_SUCCESS) {
+ // Start HW Polling Thread
+ // To-Do: Enable epoll & interrupt based later?
+ // QccCyStartPoll(iter);
+ // Setup the session structures for crypto operation and populate
+ // whatever we can now. Rest will be filled in when crypto operation
+ // happens.
+ qcc_sess[iter].sess_ctx_sz = 0;
+ qcc_sess[iter].sess_ctx = NULL;
+ qcc_sess[iter].sess_stp_data.sessionPriority = CPA_CY_PRIORITY_NORMAL;
+ qcc_sess[iter].sess_stp_data.symOperation = CPA_CY_SYM_OP_CIPHER;
+ open_instances.push(iter);
+ qcc_op_mem[iter].is_mem_alloc = false;
+ qcc_op_mem[iter].op_complete = false;
+ qcc_op_mem[iter].op_result = CPA_STATUS_SUCCESS;
+ qcc_op_mem[iter].sym_op_data = NULL;
+ qcc_op_mem[iter].buff_meta_size = qcc_op_mem[iter].buff_size = 0;
+ qcc_op_mem[iter].src_buff_meta = qcc_op_mem[iter].src_buff
+ = qcc_op_mem[iter].iv_buff = NULL;
+ qcc_op_mem[iter].src_buff_list = NULL;
+ qcc_op_mem[iter].src_buff_flat = NULL;
+ qcc_op_mem[iter].num_buffers = 1;
+ } else {
+ derr << "Unable to find address translations of instance " << iter << dendl;
+ this->cleanup();
+ return false;
+ }
+ }
+ is_init = true;
+ dout(10) << "Init complete" << dendl;
+ return true;
+}
+
+bool QccCrypto::destroy() {
+ if((!is_init) || (!init_called)) {
+ dout(15) << "QAT not initialized here. Nothing to do" << dendl;
+ return false;
+ }
+
+ unsigned int retry = 0;
+ while(retry <= QCC_MAX_RETRIES) {
+ if(open_instances.size() == qcc_inst->num_instances) {
+ break;
+ } else {
+ retry++;
+ }
+ dout(5) << "QAT is still busy and cannot free resources yet" << dendl;
+ return false;
+ }
+
+ dout(10) << "Destroying QAT crypto & related memory" << dendl;
+ int iter = 0;
+
+ // Free up op related memory
+ for (iter =0; iter < qcc_inst->num_instances; iter++) {
+ qcc_contig_mem_free((void **)&(qcc_op_mem[iter].src_buff));
+ qcc_contig_mem_free((void **)&(qcc_op_mem[iter].iv_buff));
+ qcc_os_mem_free((void **)&(qcc_op_mem[iter].src_buff_list));
+ qcc_os_mem_free((void **)&(qcc_op_mem[iter].src_buff_flat));
+ qcc_contig_mem_free((void **)&(qcc_op_mem[iter].sym_op_data));
+ }
+
+ // Free up Session memory
+ for(iter = 0; iter < qcc_inst->num_instances; iter++) {
+ cpaCySymRemoveSession(qcc_inst->cy_inst_handles[iter], qcc_sess[iter].sess_ctx);
+ qcc_contig_mem_free((void **)&(qcc_sess[iter].sess_ctx));
+ }
+
+ // Stop QAT Instances
+ for(iter = 0; iter < qcc_inst->num_instances; iter++) {
+ cpaCyStopInstance(qcc_inst->cy_inst_handles[iter]);
+ }
+
+ // Free up the base structures we use
+ qcc_os_mem_free((void **)&qcc_op_mem);
+ qcc_os_mem_free((void **)&qcc_sess);
+ qcc_os_mem_free((void **)&(qcc_inst->cy_inst_handles));
+ qcc_os_mem_free((void **)&(qcc_inst->is_polled));
+ qcc_os_mem_free((void **)&cypollthreads);
+ qcc_os_mem_free((void **)&qcc_inst);
+
+ //Un-init memory driver and QAT HW
+ icp_sal_userStop();
+ qaeMemDestroy();
+ init_called = false;
+ is_init = false;
+ return true;
+}
+
+void QccCrypto::do_crypt(qcc_thread_args *thread_args) {
+ auto entry = thread_args->entry;
+ qcc_op_mem[entry].op_result = cpaCySymPerformOp(qcc_inst->cy_inst_handles[entry],
+ NULL,
+ qcc_op_mem[entry].sym_op_data,
+ qcc_op_mem[entry].src_buff_list,
+ qcc_op_mem[entry].src_buff_list,
+ NULL);
+ qcc_op_mem[entry].op_complete = true;
+ free(thread_args);
+}
+
+bool QccCrypto::perform_op(unsigned char* out, const unsigned char* in,
+ size_t size, uint8_t *iv, uint8_t *key, CpaCySymCipherDirection op_type)
+{
+ if (!init_called) {
+ dout(10) << "QAT not intialized yet. Initializing now..." << dendl;
+ if(!QccCrypto::init()) {
+ derr << "QAT init failed" << dendl;
+ return false;
+ }
+ }
+
+ if(!is_init)
+ {
+ dout(10) << "QAT not initialized in this instance or init failed with possible error " << (int)init_stat << dendl;
+ return is_init;
+ }
+
+ int avail_inst = -1;
+ unsigned int retrycount = 0;
+ while(retrycount <= QCC_MAX_RETRIES) {
+ avail_inst = QccGetFreeInstance();
+ if(avail_inst != -1) {
+ break;
+ } else {
+ retrycount++;
+ usleep(qcc_sleep_duration);
+ }
+ }
+
+ if(avail_inst == -1) {
+ derr << "Unable to get an QAT instance. Failing request" << dendl;
+ return false;
+ }
+
+ dout(15) << "Using inst " << avail_inst << dendl;
+ // Start polling threads for this instance
+ //QccCyStartPoll(avail_inst);
+
+ auto sg = make_scope_guard([=] {
+ //free up the instance irrespective of the op status
+ dout(15) << "Completed task under " << avail_inst << dendl;
+ qcc_op_mem[avail_inst].op_complete = false;
+ QccCrypto::QccFreeInstance(avail_inst);
+ });
+
+ /*
+ * Allocate buffers for this version of the instance if not already done.
+ * Hold onto to most of them until destructor is called.
+ */
+ if (qcc_op_mem[avail_inst].is_mem_alloc == false) {
+
+ qcc_sess[avail_inst].sess_stp_data.cipherSetupData.cipherAlgorithm =
+ CPA_CY_SYM_CIPHER_AES_CBC;
+ qcc_sess[avail_inst].sess_stp_data.cipherSetupData.cipherKeyLenInBytes =
+ AES_256_KEY_SIZE;
+
+ // Allocate contig memory for buffers that are independent of the
+ // input/output
+ stat = cpaCyBufferListGetMetaSize(qcc_inst->cy_inst_handles[avail_inst],
+ qcc_op_mem[avail_inst].num_buffers, &(qcc_op_mem[avail_inst].buff_meta_size));
+ if(stat != CPA_STATUS_SUCCESS) {
+ derr << "Unable to get buff meta size" << dendl;
+ return false;
+ }
+
+ // Allocate Buffer List Private metadata
+ stat = qcc_contig_mem_alloc((void **)&(qcc_op_mem[avail_inst].src_buff_meta),
+ qcc_op_mem[avail_inst].buff_meta_size, 1);
+ if(stat != CPA_STATUS_SUCCESS) {
+ derr << "Unable to allocate private metadata memory" << dendl;
+ return false;
+ }
+
+ // Allocate Buffer List Memory
+ qcc_os_mem_alloc((void **)&(qcc_op_mem[avail_inst].src_buff_list), sizeof(CpaBufferList));
+ qcc_os_mem_alloc((void **)&(qcc_op_mem[avail_inst].src_buff_flat),
+ (qcc_op_mem[avail_inst].num_buffers * sizeof(CpaFlatBuffer)));
+ if(qcc_op_mem[avail_inst].src_buff_list == NULL || qcc_op_mem[avail_inst].src_buff_flat == NULL) {
+ derr << "Unable to allocate bufferlist memory" << dendl;
+ return false;
+ }
+
+ // Allocate IV memory
+ stat = qcc_contig_mem_alloc((void **)&(qcc_op_mem[avail_inst].iv_buff), AES_256_IV_LEN);
+ if(stat != CPA_STATUS_SUCCESS) {
+ derr << "Unable to allocate bufferlist memory" << dendl;
+ return false;
+ }
+
+ //Assign src stuff for the operation
+ (qcc_op_mem[avail_inst].src_buff_list)->pBuffers = qcc_op_mem[avail_inst].src_buff_flat;
+ (qcc_op_mem[avail_inst].src_buff_list)->numBuffers = qcc_op_mem[avail_inst].num_buffers;
+ (qcc_op_mem[avail_inst].src_buff_list)->pPrivateMetaData = qcc_op_mem[avail_inst].src_buff_meta;
+
+ //Setup OpData
+ stat = qcc_contig_mem_alloc((void **)&(qcc_op_mem[avail_inst].sym_op_data),
+ sizeof(CpaCySymOpData));
+ if(stat != CPA_STATUS_SUCCESS) {
+ derr << "Unable to allocate opdata memory" << dendl;
+ return false;
+ }
+
+ // Assuming op to be encryption for initiation. This will be reset when we
+ // exit this block
+ qcc_sess[avail_inst].sess_stp_data.cipherSetupData.cipherDirection =
+ CPA_CY_SYM_CIPHER_DIRECTION_ENCRYPT;
+ // Allocate Session memory
+ stat = cpaCySymSessionCtxGetSize(qcc_inst->cy_inst_handles[avail_inst],
+ &(qcc_sess[avail_inst].sess_stp_data), &(qcc_sess[avail_inst].sess_ctx_sz));
+ if(stat != CPA_STATUS_SUCCESS) {
+ derr << "Unable to find session size" << dendl;
+ return false;
+ }
+
+ stat = qcc_contig_mem_alloc((void **)&(qcc_sess[avail_inst].sess_ctx),
+ qcc_sess[avail_inst].sess_ctx_sz);
+ if(stat != CPA_STATUS_SUCCESS) {
+ derr << "Unable to allocate contig memory" << dendl;
+ return false;
+ }
+
+ // Set memalloc flag so that we don't go through this exercise again.
+ qcc_op_mem[avail_inst].is_mem_alloc = true;
+ dout(15) << "Instantiation complete for " << avail_inst << dendl;
+ }
+
+ // Section that runs on every call
+ // Identify the operation and assign to session
+ qcc_sess[avail_inst].sess_stp_data.cipherSetupData.cipherDirection = op_type;
+ qcc_sess[avail_inst].sess_stp_data.cipherSetupData.pCipherKey = (Cpa8U *)key;
+
+ stat = cpaCySymInitSession(qcc_inst->cy_inst_handles[avail_inst],
+ NULL,
+ &(qcc_sess[avail_inst].sess_stp_data),
+ qcc_sess[avail_inst].sess_ctx);
+ if (stat != CPA_STATUS_SUCCESS) {
+ derr << "Unable to init session" << dendl;
+ return false;
+ }
+
+ // Allocate actual buffers that will hold data
+ if (qcc_op_mem[avail_inst].buff_size != (Cpa32U)size) {
+ qcc_contig_mem_free((void **)&(qcc_op_mem[avail_inst].src_buff));
+ qcc_op_mem[avail_inst].buff_size = (Cpa32U)size;
+ stat = qcc_contig_mem_alloc((void **)&(qcc_op_mem[avail_inst].src_buff),
+ qcc_op_mem[avail_inst].buff_size);
+ if(stat != CPA_STATUS_SUCCESS) {
+ derr << "Unable to allocate contig memory" << dendl;
+ return false;
+ }
+ }
+
+ // Copy src & iv into the respective buffers
+ memcpy(qcc_op_mem[avail_inst].src_buff, in, size);
+ memcpy(qcc_op_mem[avail_inst].iv_buff, iv, AES_256_IV_LEN);
+
+ //Assign the reminder of the stuff
+ qcc_op_mem[avail_inst].src_buff_flat->dataLenInBytes = qcc_op_mem[avail_inst].buff_size;
+ qcc_op_mem[avail_inst].src_buff_flat->pData = qcc_op_mem[avail_inst].src_buff;
+
+ //OpData assignment
+ qcc_op_mem[avail_inst].sym_op_data->sessionCtx = qcc_sess[avail_inst].sess_ctx;
+ qcc_op_mem[avail_inst].sym_op_data->packetType = CPA_CY_SYM_PACKET_TYPE_FULL;
+ qcc_op_mem[avail_inst].sym_op_data->pIv = qcc_op_mem[avail_inst].iv_buff;
+ qcc_op_mem[avail_inst].sym_op_data->ivLenInBytes = AES_256_IV_LEN;
+ qcc_op_mem[avail_inst].sym_op_data->cryptoStartSrcOffsetInBytes = 0;
+ qcc_op_mem[avail_inst].sym_op_data->messageLenToCipherInBytes = qcc_op_mem[avail_inst].buff_size;
+
+ // Perform cipher operation in a thread
+ qcc_thread_args* thread_args = new qcc_thread_args();
+ thread_args->qccinstance = this;
+ thread_args->entry = avail_inst;
+
+ if (pthread_create(&cypollthreads[avail_inst], NULL, crypt_thread, (void *)thread_args) != 0) {
+ derr << "Unable to create thread for crypt operation" << dendl;
+ return false;
+ }
+ if (qcc_inst->is_polled[avail_inst] == CPA_TRUE) {
+ while (!qcc_op_mem[avail_inst].op_complete) {
+ icp_sal_CyPollInstance(qcc_inst->cy_inst_handles[avail_inst], 0);
+ }
+ }
+ pthread_join(cypollthreads[avail_inst], NULL);
+
+ if(qcc_op_mem[avail_inst].op_result != CPA_STATUS_SUCCESS) {
+ derr << "Unable to perform crypt operation" << dendl;
+ return false;
+ }
+
+ //Copy data back to out buffer
+ memcpy(out, qcc_op_mem[avail_inst].src_buff, size);
+ //Always cleanup memory holding user-data at the end
+ memset(qcc_op_mem[avail_inst].iv_buff, 0, AES_256_IV_LEN);
+ memset(qcc_op_mem[avail_inst].src_buff, 0, qcc_op_mem[avail_inst].buff_size);
+
+ return true;
+}
diff --git a/src/crypto/qat/qcccrypto.h b/src/crypto/qat/qcccrypto.h
new file mode 100644
index 000000000..a36b0898b
--- /dev/null
+++ b/src/crypto/qat/qcccrypto.h
@@ -0,0 +1,176 @@
+#ifndef QCCCRYPTO_H
+#define QCCCRYPTO_H
+
+#include <atomic>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <pthread.h>
+#include <queue>
+extern "C" {
+#include "cpa.h"
+#include "lac/cpa_cy_sym.h"
+#include "lac/cpa_cy_im.h"
+#include "qae_mem.h"
+#include "icp_sal_user.h"
+#include "icp_sal_poll.h"
+#include "qae_mem_utils.h"
+}
+
+class QccCrypto {
+
+ public:
+ CpaCySymCipherDirection qcc_op_type;
+
+ QccCrypto() {};
+ ~QccCrypto() {};
+
+ bool init();
+ bool destroy();
+ bool perform_op(unsigned char* out, const unsigned char* in, size_t size,
+ uint8_t *iv,
+ uint8_t *key,
+ CpaCySymCipherDirection op_type);
+
+ private:
+
+ // Currently only supporting AES_256_CBC.
+ // To-Do: Needs to be expanded
+ static const size_t AES_256_IV_LEN = 16;
+ static const size_t AES_256_KEY_SIZE = 32;
+ static const size_t QCC_MAX_RETRIES = 5000;
+
+ /*
+ * Struct to hold an instance of QAT to handle the crypto operations. These
+ * will be identified at the start and held until the destructor is called
+ * To-Do:
+ * The struct was creating assuming that we will use all the instances.
+ * Expand current implementation to allow multiple instances to operate
+ * independently.
+ */
+ struct QCCINST {
+ CpaInstanceHandle *cy_inst_handles;
+ CpaBoolean *is_polled;
+ Cpa16U num_instances;
+ } *qcc_inst;
+
+ /*
+ * QAT Crypto Session
+ * Crypto Session Context and setupdata holds
+ * priority, type of crypto operation (cipher/chained),
+ * cipher algorithm (AES, DES, etc),
+ * single crypto or multi-buffer crypto.
+ */
+ struct QCCSESS {
+ CpaCySymSessionSetupData sess_stp_data;
+ Cpa32U sess_ctx_sz;
+ CpaCySymSessionCtx sess_ctx;
+ } *qcc_sess;
+
+ /*
+ * Cipher Memory Allocations
+ * Holds bufferlist, flatbuffer, cipher opration data and buffermeta needed
+ * by QAT to perform the operation. Also buffers for IV, SRC, DEST.
+ */
+ struct QCCOPMEM {
+ // Op common items
+ bool is_mem_alloc;
+ bool op_complete;
+ CpaStatus op_result;
+ CpaCySymOpData *sym_op_data;
+ Cpa32U buff_meta_size;
+ Cpa32U num_buffers;
+ Cpa32U buff_size;
+
+ //Src data items
+ Cpa8U *src_buff_meta;
+ CpaBufferList *src_buff_list;
+ CpaFlatBuffer *src_buff_flat;
+ Cpa8U *src_buff;
+ Cpa8U *iv_buff;
+ } *qcc_op_mem;
+
+ //QAT HW polling thread input structure
+ struct qcc_thread_args {
+ QccCrypto* qccinstance;
+ int entry;
+ };
+
+
+ /*
+ * Function to handle the crypt operation. Will run while the main thread
+ * runs the polling function on the instance doing the op
+ */
+ void do_crypt(qcc_thread_args *thread_args);
+
+ /*
+ * Handle queue with free instances to handle op
+ */
+ std::queue<int> open_instances;
+ int QccGetFreeInstance();
+ void QccFreeInstance(int entry);
+
+ /*
+ * Contiguous Memory Allocator and de-allocator. We are using the usdm
+ * driver that comes along with QAT to get us direct memory access using
+ * hugepages.
+ * To-Do: A kernel based one.
+ */
+ static inline void qcc_contig_mem_free(void **ptr) {
+ if (*ptr) {
+ qaeMemFreeNUMA(ptr);
+ *ptr = NULL;
+ }
+ }
+
+ static inline CpaStatus qcc_contig_mem_alloc(void **ptr, Cpa32U size, Cpa32U alignment = 1) {
+ *ptr = qaeMemAllocNUMA(size, 0, alignment);
+ if (NULL == *ptr)
+ {
+ return CPA_STATUS_RESOURCE;
+ }
+ return CPA_STATUS_SUCCESS;
+ }
+
+ /*
+ * Malloc & free calls masked to maintain consistency and future kernel
+ * alloc support.
+ */
+ static inline void qcc_os_mem_free(void **ptr) {
+ if (*ptr) {
+ free(*ptr);
+ *ptr = NULL;
+ }
+ }
+
+ static inline CpaStatus qcc_os_mem_alloc(void **ptr, Cpa32U size) {
+ *ptr = malloc(size);
+ if (*ptr == NULL)
+ {
+ return CPA_STATUS_RESOURCE;
+ }
+ return CPA_STATUS_SUCCESS;
+ }
+
+ std::atomic<bool> is_init = { false };
+ CpaStatus init_stat, stat;
+
+ /*
+ * Function to cleanup memory if constructor fails
+ */
+ void cleanup();
+
+ /*
+ * Crypto Polling Function & helpers
+ * This helps to retrieve data from the QAT rings and dispatching the
+ * associated callbacks. For synchronous operation (like this one), QAT
+ * library creates an internal callback for the operation.
+ */
+ static void* crypt_thread(void* entry);
+ CpaStatus QccCyStartPoll(int entry);
+ void poll_instance(int entry);
+
+ pthread_t *cypollthreads;
+ static const size_t qcc_sleep_duration = 2;
+};
+#endif //QCCCRYPTO_H
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