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authorGabor Juhos <juhosg@openwrt.org>2008-11-18 20:45:28 +0000
committerGabor Juhos <juhosg@openwrt.org>2008-11-18 20:45:28 +0000
commit006f326bc1a5cf2a93857f1cfeb69add83950fce (patch)
treea6bd432a0e7cbbe9e3b96fa48dad63ac7925c4f6 /target/linux/generic-2.6/patches-2.6.25
parentae87ca9a832adb53c6120d68e2a51499d6863c20 (diff)
downloadupstream-006f326bc1a5cf2a93857f1cfeb69add83950fce.tar.gz
upstream-006f326bc1a5cf2a93857f1cfeb69add83950fce.tar.bz2
upstream-006f326bc1a5cf2a93857f1cfeb69add83950fce.zip
update ocf-linux to 20080917
SVN-Revision: 13282
Diffstat (limited to 'target/linux/generic-2.6/patches-2.6.25')
-rw-r--r--target/linux/generic-2.6/patches-2.6.25/970-ocf_kbuild_integration.patch25
-rw-r--r--target/linux/generic-2.6/patches-2.6.25/971-ocf_20080917.patch (renamed from target/linux/generic-2.6/patches-2.6.25/950-ocf-linux-26-20080704.patch)4201
-rw-r--r--target/linux/generic-2.6/patches-2.6.25/972-ocf_compile_fix.patch (renamed from target/linux/generic-2.6/patches-2.6.25/951-ocf-scatterlist-inc.patch)5
3 files changed, 4191 insertions, 40 deletions
diff --git a/target/linux/generic-2.6/patches-2.6.25/970-ocf_kbuild_integration.patch b/target/linux/generic-2.6/patches-2.6.25/970-ocf_kbuild_integration.patch
new file mode 100644
index 0000000000..a00b72c11b
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.25/970-ocf_kbuild_integration.patch
@@ -0,0 +1,25 @@
+--- a/crypto/Kconfig
++++ b/crypto/Kconfig
+@@ -590,6 +590,8 @@ config CRYPTO_LZO
+ help
+ This is the LZO algorithm.
+
++source "crypto/ocf/Kconfig"
++
+ source "drivers/crypto/Kconfig"
+
+ endif # if CRYPTO
+--- a/crypto/Makefile
++++ b/crypto/Makefile
+@@ -66,6 +66,11 @@ obj-$(CONFIG_CRYPTO_LZO) += lzo.o
+ obj-$(CONFIG_CRYPTO_TEST) += tcrypt.o
+
+ #
++# OCF
++#
++obj-$(CONFIG_OCF_OCF) += ocf/
++
++#
+ # generic algorithms and the async_tx api
+ #
+ obj-$(CONFIG_XOR_BLOCKS) += xor.o
diff --git a/target/linux/generic-2.6/patches-2.6.25/950-ocf-linux-26-20080704.patch b/target/linux/generic-2.6/patches-2.6.25/971-ocf_20080917.patch
index 7912a4e8dd..f3702a173b 100644
--- a/target/linux/generic-2.6/patches-2.6.25/950-ocf-linux-26-20080704.patch
+++ b/target/linux/generic-2.6/patches-2.6.25/971-ocf_20080917.patch
@@ -1,23 +1,3 @@
---- a/crypto/Kconfig
-+++ b/crypto/Kconfig
-@@ -593,3 +593,6 @@ config CRYPTO_LZO
- source "drivers/crypto/Kconfig"
-
- endif # if CRYPTO
-+
-+source "crypto/ocf/Kconfig"
-+
---- a/crypto/Makefile
-+++ b/crypto/Makefile
-@@ -65,6 +65,8 @@ obj-$(CONFIG_CRYPTO_LZO) += lzo.o
-
- obj-$(CONFIG_CRYPTO_TEST) += tcrypt.o
-
-+obj-$(CONFIG_OCF_OCF) += ocf/
-+
- #
- # generic algorithms and the async_tx api
- #
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -129,6 +129,9 @@
@@ -60,9 +40,9 @@
+ */
+void random_input_words(__u32 *buf, size_t wordcount, int ent_count)
+{
-+ add_entropy_words(&input_pool, buf, wordcount);
++ mix_pool_bytes(&input_pool, buf, wordcount*4);
+
-+ credit_entropy_store(&input_pool, ent_count);
++ credit_entropy_bits(&input_pool, ent_count);
+
+ DEBUG_ENT("crediting %d bits => %d\n",
+ ent_count, input_pool.entropy_count);
@@ -211,7 +191,7 @@
+
--- /dev/null
+++ b/crypto/ocf/Makefile
-@@ -0,0 +1,120 @@
+@@ -0,0 +1,121 @@
+# for SGlinux builds
+-include $(ROOTDIR)/modules/.config
+
@@ -256,6 +236,7 @@
+$(_obj)-$(CONFIG_OCF_IXP4XX) += ixp4xx$(_slash)
+$(_obj)-$(CONFIG_OCF_TALITOS) += talitos$(_slash)
+$(_obj)-$(CONFIG_OCF_PASEMI) += pasemi$(_slash)
++$(_obj)-$(CONFIG_OCF_EP80579) += ep80579$(_slash)
+$(_obj)-$(CONFIG_OCF_OCFNULL) += ocfnull$(_slash)
+
+ocf-objs := $(OCF_OBJS)
@@ -292,7 +273,7 @@
+ diff -Nau /dev/null $$t | sed 's?^+++ \./?+++ linux/crypto/ocf/?'; \
+ done > $$patch; \
+ cat patches/linux-2.4.35-ocf.patch $$patch > $$patch24; \
-+ cat patches/linux-2.6.25-ocf.patch $$patch > $$patch26
++ cat patches/linux-2.6.26-ocf.patch $$patch > $$patch26
+
+.PHONY: tarball
+tarball:
@@ -470,6 +451,116 @@
+endif
+
--- /dev/null
++++ b/crypto/ocf/ep80579/Makefile
+@@ -0,0 +1,107 @@
++#########################################################################
++#
++# Targets supported
++# all - builds everything and installs
++# install - identical to all
++# depend - build dependencies
++# clean - clears derived objects except the .depend files
++# distclean- clears all derived objects and the .depend file
++#
++# @par
++# This file is provided under a dual BSD/GPLv2 license. When using or
++# redistributing this file, you may do so under either license.
++#
++# GPL LICENSE SUMMARY
++#
++# Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
++#
++# This program is free software; you can redistribute it and/or modify
++# it under the terms of version 2 of the GNU General Public License as
++# published by the Free Software Foundation.
++#
++# This program is distributed in the hope that it will be useful, but
++# WITHOUT ANY WARRANTY; without even the implied warranty of
++# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++# General Public License for more details.
++#
++# You should have received a copy of the GNU General Public License
++# along with this program; if not, write to the Free Software
++# Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
++# The full GNU General Public License is included in this distribution
++# in the file called LICENSE.GPL.
++#
++# Contact Information:
++# Intel Corporation
++#
++# BSD LICENSE
++#
++# Copyright(c) 2007,2008 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.
++#
++#
++# version: Security.L.1.0.130
++############################################################################
++
++
++####################Common variables and definitions########################
++
++# Ensure The ENV_DIR environmental var is defined.
++ifndef ICP_ENV_DIR
++$(error ICP_ENV_DIR is undefined. Please set the path to your environment makefile \
++ "-> setenv ICP_ENV_DIR <path>")
++endif
++
++#Add your project environment Makefile
++include $(ICP_ENV_DIR)/environment.mk
++
++#include the makefile with all the default and common Make variable definitions
++include $(ICP_BUILDSYSTEM_PATH)/build_files/common.mk
++
++#Add the name for the executable, Library or Module output definitions
++OUTPUT_NAME= icp_ocf
++
++# List of Source Files to be compiled
++SOURCES= icp_common.c icp_sym.c icp_asym.c
++
++#common includes between all supported OSes
++INCLUDES= -I $(ICP_API_DIR) -I$(ICP_LAC_API) \
++-I$(ICP_OCF_SRC_DIR)
++
++# The location of the os level makefile needs to be changed.
++include $(ICP_ENV_DIR)/$(ICP_OS)_$(ICP_OS_LEVEL).mk
++
++# On the line directly below list the outputs you wish to build for,
++# e.g "lib_static lib_shared exe module" as show below
++install: module
++
++###################Include rules makefiles########################
++include $(ICP_BUILDSYSTEM_PATH)/build_files/rules.mk
++###################End of Rules inclusion#########################
++
++
+--- /dev/null
+++ b/crypto/ocf/pasemi/Makefile
@@ -0,0 +1,12 @@
+# for SGlinux builds
@@ -486,7 +577,7 @@
+
--- /dev/null
+++ b/crypto/ocf/Config.in
-@@ -0,0 +1,32 @@
+@@ -0,0 +1,34 @@
+#############################################################################
+
+mainmenu_option next_comment
@@ -512,6 +603,8 @@
+ CONFIG_OCF_TALITOS $CONFIG_OCF_OCF
+dep_tristate ' pasemi (HW crypto engine)' \
+ CONFIG_OCF_PASEMI $CONFIG_OCF_OCF
++dep_tristate ' ep80579 (HW crypto engine)' \
++ CONFIG_OCF_EP80579 $CONFIG_OCF_OCF
+dep_tristate ' ocfnull (does no crypto)' \
+ CONFIG_OCF_OCFNULL $CONFIG_OCF_OCF
+dep_tristate ' ocf-bench (HW crypto in-kernel benchmark)' \
@@ -521,7 +614,7 @@
+#############################################################################
--- /dev/null
+++ b/crypto/ocf/Kconfig
-@@ -0,0 +1,95 @@
+@@ -0,0 +1,101 @@
+menu "OCF Configuration"
+
+config OCF_OCF
@@ -597,10 +690,16 @@
+ OCF driver for Freescale's security engine (SEC/talitos).
+
+config OCF_PASEMI
-+ tristate "pasemi (HW crypto engine)"
-+ depends on OCF_OCF && PPC_PASEMI
-+ help
-+ OCF driver for for PA Semi PWRficient DMA Engine
++ tristate "pasemi (HW crypto engine)"
++ depends on OCF_OCF && PPC_PASEMI
++ help
++ OCF driver for the PA Semi PWRficient DMA Engine
++
++config OCF_EP80579
++ tristate "ep80579 (HW crypto engine)"
++ depends on OCF_OCF
++ help
++ OCF driver for the Intel EP80579 Integrated Processor Product Line.
+
+config OCF_OCFNULL
+ tristate "ocfnull (fake crypto engine)"
@@ -619,7 +718,7 @@
+endmenu
--- /dev/null
+++ b/crypto/ocf/README
-@@ -0,0 +1,166 @@
+@@ -0,0 +1,167 @@
+README - ocf-linux-20071215
+---------------------------
+
@@ -656,12 +755,13 @@
+ cd ..
+ patch -p1 < crypto/ocf/patches/linux-2.4.35-ocf.patch
+
-+ for 2.6.23 (and later)
++ for 2.6.23 (and later), find the kernel patch specific (or nearest)
++ to your kernel versions and then:
+
-+ cd linux-2.6.23/crypto
++ cd linux-2.6.NN/crypto
+ tar xvzf ocf-linux.tar.gz
+ cd ..
-+ patch -p1 < crypto/ocf/patches/linux-2.6.23-ocf.patch
++ patch -p1 < crypto/ocf/patches/linux-2.6.NN-ocf.patch
+
+ It should be easy to take this patch and apply it to other more
+ recent versions of the kernels. The same patches should also work
@@ -686,7 +786,7 @@
+
+ /usr/include/crypto/cryptodev.h
+
-+ * patch your openssl-0.9.8g code with the openssl-0.9.8g.patch.
++ * patch your openssl-0.9.8i code with the openssl-0.9.8i.patch.
+ (NOTE: there is no longer a need to patch ssh). The patch is against:
+ openssl-0_9_8e
+
@@ -694,7 +794,7 @@
+ to older OCF releases. This patch is unlikely to work on older
+ openssl versions.
+
-+ openssl-0.9.8g.patch
++ openssl-0.9.8i.patch
+ - enables --with-cryptodev for non BSD systems
+ - adds -cpu option to openssl speed for calculating CPU load
+ under linux
@@ -17769,7 +17869,7 @@
+extern int rndtest_buf(unsigned char *buf);
--- /dev/null
+++ b/crypto/ocf/ocf-compat.h
-@@ -0,0 +1,268 @@
+@@ -0,0 +1,270 @@
+#ifndef _BSD_COMPAT_H_
+#define _BSD_COMPAT_H_ 1
+/****************************************************************************/
@@ -17895,7 +17995,9 @@
+
+#endif
+
-+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11)
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
++#include <linux/fdtable.h>
++#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11)
+#define files_fdtable(files) (files)
+#endif
+
@@ -18039,6 +18141,4029 @@
+/****************************************************************************/
+#endif /* _BSD_COMPAT_H_ */
--- /dev/null
++++ b/crypto/ocf/ep80579/icp_asym.c
+@@ -0,0 +1,1375 @@
++/***************************************************************************
++ *
++ * This file is provided under a dual BSD/GPLv2 license. When using or
++ * redistributing this file, you may do so under either license.
++ *
++ * GPL LICENSE SUMMARY
++ *
++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of version 2 of the GNU General Public License as
++ * published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
++ * The full GNU General Public License is included in this distribution
++ * in the file called LICENSE.GPL.
++ *
++ * Contact Information:
++ * Intel Corporation
++ *
++ * BSD LICENSE
++ *
++ * Copyright(c) 2007,2008 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.
++ *
++ *
++ * version: Security.L.1.0.130
++ *
++ ***************************************************************************/
++
++#include "icp_ocf.h"
++
++/*The following define values (containing the word 'INDEX') are used to find
++the index of each input buffer of the crypto_kop struct (see OCF cryptodev.h).
++These values were found through analysis of the OCF OpenSSL patch. If the
++calling program uses different input buffer positions, these defines will have
++to be changed.*/
++
++/*DIFFIE HELLMAN buffer index values*/
++#define ICP_DH_KRP_PARAM_PRIME_INDEX (0)
++#define ICP_DH_KRP_PARAM_BASE_INDEX (1)
++#define ICP_DH_KRP_PARAM_PRIVATE_VALUE_INDEX (2)
++#define ICP_DH_KRP_PARAM_RESULT_INDEX (3)
++
++/*MOD EXP buffer index values*/
++#define ICP_MOD_EXP_KRP_PARAM_BASE_INDEX (0)
++#define ICP_MOD_EXP_KRP_PARAM_EXPONENT_INDEX (1)
++#define ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX (2)
++#define ICP_MOD_EXP_KRP_PARAM_RESULT_INDEX (3)
++
++#define SINGLE_BYTE_VALUE (4)
++
++/*MOD EXP CRT buffer index values*/
++#define ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_P_INDEX (0)
++#define ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_Q_INDEX (1)
++#define ICP_MOD_EXP_CRT_KRP_PARAM_I_INDEX (2)
++#define ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DP_INDEX (3)
++#define ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DQ_INDEX (4)
++#define ICP_MOD_EXP_CRT_KRP_PARAM_COEFF_QINV_INDEX (5)
++#define ICP_MOD_EXP_CRT_KRP_PARAM_RESULT_INDEX (6)
++
++/*DSA sign buffer index values*/
++#define ICP_DSA_SIGN_KRP_PARAM_DGST_INDEX (0)
++#define ICP_DSA_SIGN_KRP_PARAM_PRIME_P_INDEX (1)
++#define ICP_DSA_SIGN_KRP_PARAM_PRIME_Q_INDEX (2)
++#define ICP_DSA_SIGN_KRP_PARAM_G_INDEX (3)
++#define ICP_DSA_SIGN_KRP_PARAM_X_INDEX (4)
++#define ICP_DSA_SIGN_KRP_PARAM_R_RESULT_INDEX (5)
++#define ICP_DSA_SIGN_KRP_PARAM_S_RESULT_INDEX (6)
++
++/*DSA verify buffer index values*/
++#define ICP_DSA_VERIFY_KRP_PARAM_DGST_INDEX (0)
++#define ICP_DSA_VERIFY_KRP_PARAM_PRIME_P_INDEX (1)
++#define ICP_DSA_VERIFY_KRP_PARAM_PRIME_Q_INDEX (2)
++#define ICP_DSA_VERIFY_KRP_PARAM_G_INDEX (3)
++#define ICP_DSA_VERIFY_KRP_PARAM_PUBKEY_INDEX (4)
++#define ICP_DSA_VERIFY_KRP_PARAM_SIG_R_INDEX (5)
++#define ICP_DSA_VERIFY_KRP_PARAM_SIG_S_INDEX (6)
++
++/*DSA sign prime Q vs random number K size check values*/
++#define DONT_RUN_LESS_THAN_CHECK (0)
++#define FAIL_A_IS_GREATER_THAN_B (1)
++#define FAIL_A_IS_EQUAL_TO_B (1)
++#define SUCCESS_A_IS_LESS_THAN_B (0)
++#define DSA_SIGN_RAND_GEN_VAL_CHECK_MAX_ITERATIONS (500)
++
++/* We need to set a cryptokp success value just in case it is set or allocated
++ and not set to zero outside of this module */
++#define CRYPTO_OP_SUCCESS (0)
++
++static int icp_ocfDrvDHComputeKey(struct cryptkop *krp);
++
++static int icp_ocfDrvModExp(struct cryptkop *krp);
++
++static int icp_ocfDrvModExpCRT(struct cryptkop *krp);
++
++static int
++icp_ocfDrvCheckALessThanB(CpaFlatBuffer * pK, CpaFlatBuffer * pQ, int *doCheck);
++
++static int icp_ocfDrvDsaSign(struct cryptkop *krp);
++
++static int icp_ocfDrvDsaVerify(struct cryptkop *krp);
++
++static void
++icp_ocfDrvDhP1CallBack(void *callbackTag,
++ CpaStatus status,
++ void *pOpData, CpaFlatBuffer * pLocalOctetStringPV);
++
++static void
++icp_ocfDrvModExpCallBack(void *callbackTag,
++ CpaStatus status,
++ void *pOpData, CpaFlatBuffer * pResult);
++
++static void
++icp_ocfDrvModExpCRTCallBack(void *callbackTag,
++ CpaStatus status,
++ void *pOpData, CpaFlatBuffer * pOutputData);
++
++static void
++icp_ocfDrvDsaVerifyCallBack(void *callbackTag,
++ CpaStatus status,
++ void *pOpData, CpaBoolean verifyStatus);
++
++static void
++icp_ocfDrvDsaRSSignCallBack(void *callbackTag,
++ CpaStatus status,
++ void *pOpData,
++ CpaBoolean protocolStatus,
++ CpaFlatBuffer * pR, CpaFlatBuffer * pS);
++
++/* Name : icp_ocfDrvPkeProcess
++ *
++ * Description : This function will choose which PKE process to follow
++ * based on the input arguments
++ */
++int icp_ocfDrvPkeProcess(device_t dev, struct cryptkop *krp, int hint)
++{
++ CpaStatus lacStatus = CPA_STATUS_SUCCESS;
++
++ if (NULL == krp) {
++ DPRINTK("%s(): Invalid input parameters, cryptkop = %p\n",
++ __FUNCTION__, krp);
++ return EINVAL;
++ }
++
++ if (CPA_TRUE == atomic_read(&icp_ocfDrvIsExiting)) {
++ krp->krp_status = ECANCELED;
++ return ECANCELED;
++ }
++
++ switch (krp->krp_op) {
++ case CRK_DH_COMPUTE_KEY:
++ DPRINTK("%s() doing DH_COMPUTE_KEY\n", __FUNCTION__);
++ lacStatus = icp_ocfDrvDHComputeKey(krp);
++ if (CPA_STATUS_SUCCESS != lacStatus) {
++ EPRINTK("%s(): icp_ocfDrvDHComputeKey failed "
++ "(%d).\n", __FUNCTION__, lacStatus);
++ krp->krp_status = ECANCELED;
++ return ECANCELED;
++ }
++
++ break;
++
++ case CRK_MOD_EXP:
++ DPRINTK("%s() doing MOD_EXP \n", __FUNCTION__);
++ lacStatus = icp_ocfDrvModExp(krp);
++ if (CPA_STATUS_SUCCESS != lacStatus) {
++ EPRINTK("%s(): icp_ocfDrvModExp failed (%d).\n",
++ __FUNCTION__, lacStatus);
++ krp->krp_status = ECANCELED;
++ return ECANCELED;
++ }
++
++ break;
++
++ case CRK_MOD_EXP_CRT:
++ DPRINTK("%s() doing MOD_EXP_CRT \n", __FUNCTION__);
++ lacStatus = icp_ocfDrvModExpCRT(krp);
++ if (CPA_STATUS_SUCCESS != lacStatus) {
++ EPRINTK("%s(): icp_ocfDrvModExpCRT "
++ "failed (%d).\n", __FUNCTION__, lacStatus);
++ krp->krp_status = ECANCELED;
++ return ECANCELED;
++ }
++
++ break;
++
++ case CRK_DSA_SIGN:
++ DPRINTK("%s() doing DSA_SIGN \n", __FUNCTION__);
++ lacStatus = icp_ocfDrvDsaSign(krp);
++ if (CPA_STATUS_SUCCESS != lacStatus) {
++ EPRINTK("%s(): icp_ocfDrvDsaSign "
++ "failed (%d).\n", __FUNCTION__, lacStatus);
++ krp->krp_status = ECANCELED;
++ return ECANCELED;
++ }
++
++ break;
++
++ case CRK_DSA_VERIFY:
++ DPRINTK("%s() doing DSA_VERIFY \n", __FUNCTION__);
++ lacStatus = icp_ocfDrvDsaVerify(krp);
++ if (CPA_STATUS_SUCCESS != lacStatus) {
++ EPRINTK("%s(): icp_ocfDrvDsaVerify "
++ "failed (%d).\n", __FUNCTION__, lacStatus);
++ krp->krp_status = ECANCELED;
++ return ECANCELED;
++ }
++
++ break;
++
++ default:
++ EPRINTK("%s(): Asymettric function not "
++ "supported (%d).\n", __FUNCTION__, krp->krp_op);
++ krp->krp_status = EOPNOTSUPP;
++ return EOPNOTSUPP;
++ }
++
++ return ICP_OCF_DRV_STATUS_SUCCESS;
++}
++
++/* Name : icp_ocfDrvSwapBytes
++ *
++ * Description : This function is used to swap the byte order of a buffer.
++ * It has been seen that in general we are passed little endian byte order
++ * buffers, but LAC only accepts big endian byte order buffers.
++ */
++static void inline
++icp_ocfDrvSwapBytes(u_int8_t * num, u_int32_t buff_len_bytes)
++{
++
++ int i;
++ u_int8_t *end_ptr;
++ u_int8_t hold_val;
++
++ end_ptr = num + (buff_len_bytes - 1);
++ buff_len_bytes = buff_len_bytes >> 1;
++ for (i = 0; i < buff_len_bytes; i++) {
++ hold_val = *num;
++ *num = *end_ptr;
++ num++;
++ *end_ptr = hold_val;
++ end_ptr--;
++ }
++}
++
++/* Name : icp_ocfDrvDHComputeKey
++ *
++ * Description : This function will map Diffie Hellman calls from OCF
++ * to the LAC API. OCF uses this function for Diffie Hellman Phase1 and
++ * Phase2. LAC has a separate Diffie Hellman Phase2 call, however both phases
++ * break down to a modular exponentiation.
++ */
++static int icp_ocfDrvDHComputeKey(struct cryptkop *krp)
++{
++ CpaStatus lacStatus = CPA_STATUS_SUCCESS;
++ void *callbackTag = NULL;
++ CpaCyDhPhase1KeyGenOpData *pPhase1OpData = NULL;
++ CpaFlatBuffer *pLocalOctetStringPV = NULL;
++ uint32_t dh_prime_len_bytes = 0, dh_prime_len_bits = 0;
++
++ /* Input checks - check prime is a multiple of 8 bits to allow for
++ allocation later */
++ dh_prime_len_bits =
++ (krp->krp_param[ICP_DH_KRP_PARAM_PRIME_INDEX].crp_nbits);
++
++ /* LAC can reject prime lengths based on prime key sizes, we just
++ need to make sure we can allocate space for the base and
++ exponent buffers correctly */
++ if ((dh_prime_len_bits % NUM_BITS_IN_BYTE) != 0) {
++ APRINTK("%s(): Warning Prime number buffer size is not a "
++ "multiple of 8 bits\n", __FUNCTION__);
++ }
++
++ /* Result storage space should be the same size as the prime as this
++ value can take up the same amount of storage space */
++ if (dh_prime_len_bits !=
++ krp->krp_param[ICP_DH_KRP_PARAM_RESULT_INDEX].crp_nbits) {
++ DPRINTK("%s(): Return Buffer must be the same size "
++ "as the Prime buffer\n", __FUNCTION__);
++ krp->krp_status = EINVAL;
++ return EINVAL;
++ }
++ /* Switch to size in bytes */
++ BITS_TO_BYTES(dh_prime_len_bytes, dh_prime_len_bits);
++
++ callbackTag = krp;
++
++ pPhase1OpData = kmem_cache_zalloc(drvDH_zone, GFP_KERNEL);
++ if (NULL == pPhase1OpData) {
++ APRINTK("%s():Failed to get memory for key gen data\n",
++ __FUNCTION__);
++ krp->krp_status = ENOMEM;
++ return ENOMEM;
++ }
++
++ pLocalOctetStringPV = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL);
++ if (NULL == pLocalOctetStringPV) {
++ APRINTK("%s():Failed to get memory for pLocalOctetStringPV\n",
++ __FUNCTION__);
++ kmem_cache_free(drvDH_zone, pPhase1OpData);
++ krp->krp_status = ENOMEM;
++ return ENOMEM;
++ }
++
++ /* Link parameters */
++ pPhase1OpData->primeP.pData =
++ krp->krp_param[ICP_DH_KRP_PARAM_PRIME_INDEX].crp_p;
++
++ pPhase1OpData->primeP.dataLenInBytes = dh_prime_len_bytes;
++
++ icp_ocfDrvSwapBytes(pPhase1OpData->primeP.pData, dh_prime_len_bytes);
++
++ pPhase1OpData->baseG.pData =
++ krp->krp_param[ICP_DH_KRP_PARAM_BASE_INDEX].crp_p;
++
++ BITS_TO_BYTES(pPhase1OpData->baseG.dataLenInBytes,
++ krp->krp_param[ICP_DH_KRP_PARAM_BASE_INDEX].crp_nbits);
++
++ icp_ocfDrvSwapBytes(pPhase1OpData->baseG.pData,
++ pPhase1OpData->baseG.dataLenInBytes);
++
++ pPhase1OpData->privateValueX.pData =
++ krp->krp_param[ICP_DH_KRP_PARAM_PRIVATE_VALUE_INDEX].crp_p;
++
++ BITS_TO_BYTES(pPhase1OpData->privateValueX.dataLenInBytes,
++ krp->krp_param[ICP_DH_KRP_PARAM_PRIVATE_VALUE_INDEX].
++ crp_nbits);
++
++ icp_ocfDrvSwapBytes(pPhase1OpData->privateValueX.pData,
++ pPhase1OpData->privateValueX.dataLenInBytes);
++
++ /* Output parameters */
++ pLocalOctetStringPV->pData =
++ krp->krp_param[ICP_DH_KRP_PARAM_RESULT_INDEX].crp_p;
++
++ BITS_TO_BYTES(pLocalOctetStringPV->dataLenInBytes,
++ krp->krp_param[ICP_DH_KRP_PARAM_RESULT_INDEX].crp_nbits);
++
++ lacStatus = cpaCyDhKeyGenPhase1(CPA_INSTANCE_HANDLE_SINGLE,
++ icp_ocfDrvDhP1CallBack,
++ callbackTag, pPhase1OpData,
++ pLocalOctetStringPV);
++
++ if (CPA_STATUS_SUCCESS != lacStatus) {
++ EPRINTK("%s(): DH Phase 1 Key Gen failed (%d).\n",
++ __FUNCTION__, lacStatus);
++ icp_ocfDrvFreeFlatBuffer(pLocalOctetStringPV);
++ kmem_cache_free(drvDH_zone, pPhase1OpData);
++ }
++
++ return lacStatus;
++}
++
++/* Name : icp_ocfDrvModExp
++ *
++ * Description : This function will map ordinary Modular Exponentiation calls
++ * from OCF to the LAC API.
++ *
++ */
++static int icp_ocfDrvModExp(struct cryptkop *krp)
++{
++ CpaStatus lacStatus = CPA_STATUS_SUCCESS;
++ void *callbackTag = NULL;
++ CpaCyLnModExpOpData *pModExpOpData = NULL;
++ CpaFlatBuffer *pResult = NULL;
++
++ if ((krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX].crp_nbits %
++ NUM_BITS_IN_BYTE) != 0) {
++ DPRINTK("%s(): Warning - modulus buffer size (%d) is not a "
++ "multiple of 8 bits\n", __FUNCTION__,
++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX].
++ crp_nbits);
++ }
++
++ /* Result storage space should be the same size as the prime as this
++ value can take up the same amount of storage space */
++ if (krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX].crp_nbits >
++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_RESULT_INDEX].crp_nbits) {
++ APRINTK("%s(): Return Buffer size must be the same or"
++ " greater than the Modulus buffer\n", __FUNCTION__);
++ krp->krp_status = EINVAL;
++ return EINVAL;
++ }
++
++ callbackTag = krp;
++
++ pModExpOpData = kmem_cache_zalloc(drvLnModExp_zone, GFP_KERNEL);
++ if (NULL == pModExpOpData) {
++ APRINTK("%s():Failed to get memory for key gen data\n",
++ __FUNCTION__);
++ krp->krp_status = ENOMEM;
++ return ENOMEM;
++ }
++
++ pResult = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL);
++ if (NULL == pResult) {
++ APRINTK("%s():Failed to get memory for ModExp result\n",
++ __FUNCTION__);
++ kmem_cache_free(drvLnModExp_zone, pModExpOpData);
++ krp->krp_status = ENOMEM;
++ return ENOMEM;
++ }
++
++ /* Link parameters */
++ pModExpOpData->modulus.pData =
++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX].crp_p;
++ BITS_TO_BYTES(pModExpOpData->modulus.dataLenInBytes,
++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX].
++ crp_nbits);
++
++ icp_ocfDrvSwapBytes(pModExpOpData->modulus.pData,
++ pModExpOpData->modulus.dataLenInBytes);
++
++ /*OCF patch to Openswan Pluto regularly sends the base value as 2
++ bits in size. In this case, it has been found it is better to
++ use the base size memory space as the input buffer (if the number
++ is in bits is less than a byte, the number of bits is the input
++ value) */
++ if (krp->krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].crp_nbits <
++ NUM_BITS_IN_BYTE) {
++ DPRINTK("%s : base is small (%d)\n", __FUNCTION__, krp->
++ krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].crp_nbits);
++ pModExpOpData->base.dataLenInBytes = SINGLE_BYTE_VALUE;
++ pModExpOpData->base.pData =
++ (uint8_t *) & (krp->
++ krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].
++ crp_nbits);
++ *((uint32_t *) pModExpOpData->base.pData) =
++ htonl(*((uint32_t *) pModExpOpData->base.pData));
++
++ } else {
++
++ DPRINTK("%s : base is big (%d)\n", __FUNCTION__, krp->
++ krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].crp_nbits);
++ pModExpOpData->base.pData =
++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].crp_p;
++ BITS_TO_BYTES(pModExpOpData->base.dataLenInBytes,
++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].
++ crp_nbits);
++ icp_ocfDrvSwapBytes(pModExpOpData->base.pData,
++ pModExpOpData->base.dataLenInBytes);
++ }
++
++ pModExpOpData->exponent.pData =
++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_EXPONENT_INDEX].crp_p;
++ BITS_TO_BYTES(pModExpOpData->exponent.dataLenInBytes,
++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_EXPONENT_INDEX].
++ crp_nbits);
++
++ icp_ocfDrvSwapBytes(pModExpOpData->exponent.pData,
++ pModExpOpData->exponent.dataLenInBytes);
++ /* Output parameters */
++ pResult->pData =
++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_RESULT_INDEX].crp_p,
++ BITS_TO_BYTES(pResult->dataLenInBytes,
++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_RESULT_INDEX].
++ crp_nbits);
++
++ lacStatus = cpaCyLnModExp(CPA_INSTANCE_HANDLE_SINGLE,
++ icp_ocfDrvModExpCallBack,
++ callbackTag, pModExpOpData, pResult);
++
++ if (CPA_STATUS_SUCCESS != lacStatus) {
++ EPRINTK("%s(): Mod Exp Operation failed (%d).\n",
++ __FUNCTION__, lacStatus);
++ krp->krp_status = ECANCELED;
++ icp_ocfDrvFreeFlatBuffer(pResult);
++ kmem_cache_free(drvLnModExp_zone, pModExpOpData);
++ }
++
++ return lacStatus;
++}
++
++/* Name : icp_ocfDrvModExpCRT
++ *
++ * Description : This function will map ordinary Modular Exponentiation Chinese
++ * Remainder Theorem implementaion calls from OCF to the LAC API.
++ *
++ * Note : Mod Exp CRT for this driver is accelerated through LAC RSA type 2
++ * decrypt operation. Therefore P and Q input values must always be prime
++ * numbers. Although basic primality checks are done in LAC, it is up to the
++ * user to do any correct prime number checking before passing the inputs.
++ */
++
++static int icp_ocfDrvModExpCRT(struct cryptkop *krp)
++{
++ CpaStatus lacStatus = CPA_STATUS_SUCCESS;
++ CpaCyRsaDecryptOpData *rsaDecryptOpData = NULL;
++ void *callbackTag = NULL;
++ CpaFlatBuffer *pOutputData = NULL;
++
++ /*Parameter input checks are all done by LAC, no need to repeat
++ them here. */
++ callbackTag = krp;
++
++ rsaDecryptOpData = kmem_cache_zalloc(drvRSADecrypt_zone, GFP_KERNEL);
++ if (NULL == rsaDecryptOpData) {
++ APRINTK("%s():Failed to get memory"
++ " for MOD EXP CRT Op data struct\n", __FUNCTION__);
++ krp->krp_status = ENOMEM;
++ return ENOMEM;
++ }
++
++ rsaDecryptOpData->pRecipientPrivateKey
++ = kmem_cache_zalloc(drvRSAPrivateKey_zone, GFP_KERNEL);
++ if (NULL == rsaDecryptOpData->pRecipientPrivateKey) {
++ APRINTK("%s():Failed to get memory for MOD EXP CRT"
++ " private key values struct\n", __FUNCTION__);
++ kmem_cache_free(drvRSADecrypt_zone, rsaDecryptOpData);
++ krp->krp_status = ENOMEM;
++ return ENOMEM;
++ }
++
++ rsaDecryptOpData->pRecipientPrivateKey->
++ version = CPA_CY_RSA_VERSION_TWO_PRIME;
++ rsaDecryptOpData->pRecipientPrivateKey->
++ privateKeyRepType = CPA_CY_RSA_PRIVATE_KEY_REP_TYPE_2;
++
++ pOutputData = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL);
++ if (NULL == pOutputData) {
++ APRINTK("%s():Failed to get memory"
++ " for MOD EXP CRT output data\n", __FUNCTION__);
++ kmem_cache_free(drvRSAPrivateKey_zone,
++ rsaDecryptOpData->pRecipientPrivateKey);
++ kmem_cache_free(drvRSADecrypt_zone, rsaDecryptOpData);
++ krp->krp_status = ENOMEM;
++ return ENOMEM;
++ }
++
++ rsaDecryptOpData->pRecipientPrivateKey->
++ version = CPA_CY_RSA_VERSION_TWO_PRIME;
++ rsaDecryptOpData->pRecipientPrivateKey->
++ privateKeyRepType = CPA_CY_RSA_PRIVATE_KEY_REP_TYPE_2;
++
++ /* Link parameters */
++ rsaDecryptOpData->inputData.pData =
++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_I_INDEX].crp_p;
++ BITS_TO_BYTES(rsaDecryptOpData->inputData.dataLenInBytes,
++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_I_INDEX].
++ crp_nbits);
++
++ icp_ocfDrvSwapBytes(rsaDecryptOpData->inputData.pData,
++ rsaDecryptOpData->inputData.dataLenInBytes);
++
++ rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2.prime1P.pData =
++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_P_INDEX].crp_p;
++ BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2.
++ prime1P.dataLenInBytes,
++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_P_INDEX].
++ crp_nbits);
++
++ icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey->
++ privateKeyRep2.prime1P.pData,
++ rsaDecryptOpData->pRecipientPrivateKey->
++ privateKeyRep2.prime1P.dataLenInBytes);
++
++ rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2.prime2Q.pData =
++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_Q_INDEX].crp_p;
++ BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2.
++ prime2Q.dataLenInBytes,
++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_Q_INDEX].
++ crp_nbits);
++
++ icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey->
++ privateKeyRep2.prime2Q.pData,
++ rsaDecryptOpData->pRecipientPrivateKey->
++ privateKeyRep2.prime2Q.dataLenInBytes);
++
++ rsaDecryptOpData->pRecipientPrivateKey->
++ privateKeyRep2.exponent1Dp.pData =
++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DP_INDEX].crp_p;
++ BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2.
++ exponent1Dp.dataLenInBytes,
++ krp->
++ krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DP_INDEX].
++ crp_nbits);
++
++ icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey->
++ privateKeyRep2.exponent1Dp.pData,
++ rsaDecryptOpData->pRecipientPrivateKey->
++ privateKeyRep2.exponent1Dp.dataLenInBytes);
++
++ rsaDecryptOpData->pRecipientPrivateKey->
++ privateKeyRep2.exponent2Dq.pData =
++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DQ_INDEX].crp_p;
++ BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey->
++ privateKeyRep2.exponent2Dq.dataLenInBytes,
++ krp->
++ krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DQ_INDEX].
++ crp_nbits);
++
++ icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey->
++ privateKeyRep2.exponent2Dq.pData,
++ rsaDecryptOpData->pRecipientPrivateKey->
++ privateKeyRep2.exponent2Dq.dataLenInBytes);
++
++ rsaDecryptOpData->pRecipientPrivateKey->
++ privateKeyRep2.coefficientQInv.pData =
++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_COEFF_QINV_INDEX].crp_p;
++ BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey->
++ privateKeyRep2.coefficientQInv.dataLenInBytes,
++ krp->
++ krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_COEFF_QINV_INDEX].
++ crp_nbits);
++
++ icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey->
++ privateKeyRep2.coefficientQInv.pData,
++ rsaDecryptOpData->pRecipientPrivateKey->
++ privateKeyRep2.coefficientQInv.dataLenInBytes);
++
++ /* Output Parameter */
++ pOutputData->pData =
++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_RESULT_INDEX].crp_p;
++ BITS_TO_BYTES(pOutputData->dataLenInBytes,
++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_RESULT_INDEX].
++ crp_nbits);
++
++ lacStatus = cpaCyRsaDecrypt(CPA_INSTANCE_HANDLE_SINGLE,
++ icp_ocfDrvModExpCRTCallBack,
++ callbackTag, rsaDecryptOpData, pOutputData);
++
++ if (CPA_STATUS_SUCCESS != lacStatus) {
++ EPRINTK("%s(): Mod Exp CRT Operation failed (%d).\n",
++ __FUNCTION__, lacStatus);
++ krp->krp_status = ECANCELED;
++ icp_ocfDrvFreeFlatBuffer(pOutputData);
++ kmem_cache_free(drvRSAPrivateKey_zone,
++ rsaDecryptOpData->pRecipientPrivateKey);
++ kmem_cache_free(drvRSADecrypt_zone, rsaDecryptOpData);
++ }
++
++ return lacStatus;
++}
++
++/* Name : icp_ocfDrvCheckALessThanB
++ *
++ * Description : This function will check whether the first argument is less
++ * than the second. It is used to check whether the DSA RS sign Random K
++ * value is less than the Prime Q value (as defined in the specification)
++ *
++ */
++static int
++icp_ocfDrvCheckALessThanB(CpaFlatBuffer * pK, CpaFlatBuffer * pQ, int *doCheck)
++{
++
++ uint8_t *MSB_K = pK->pData;
++ uint8_t *MSB_Q = pQ->pData;
++ uint32_t buffer_lengths_in_bytes = pQ->dataLenInBytes;
++
++ if (DONT_RUN_LESS_THAN_CHECK == *doCheck) {
++ return FAIL_A_IS_GREATER_THAN_B;
++ }
++
++/*Check MSBs
++if A == B, check next MSB
++if A > B, return A_IS_GREATER_THAN_B
++if A < B, return A_IS_LESS_THAN_B (success)
++*/
++ while (*MSB_K == *MSB_Q) {
++ MSB_K++;
++ MSB_Q++;
++
++ buffer_lengths_in_bytes--;
++ if (0 == buffer_lengths_in_bytes) {
++ DPRINTK("%s() Buffers have equal value!!\n",
++ __FUNCTION__);
++ return FAIL_A_IS_EQUAL_TO_B;
++ }
++
++ }
++
++ if (*MSB_K < *MSB_Q) {
++ return SUCCESS_A_IS_LESS_THAN_B;
++ } else {
++ return FAIL_A_IS_GREATER_THAN_B;
++ }
++
++}
++
++/* Name : icp_ocfDrvDsaSign
++ *
++ * Description : This function will map DSA RS Sign from OCF to the LAC API.
++ *
++ * NOTE: From looking at OCF patch to OpenSSL and even the number of input
++ * parameters, OCF expects us to generate the random seed value. This value
++ * is generated and passed to LAC, however the number is discared in the
++ * callback and not returned to the user.
++ */
++static int icp_ocfDrvDsaSign(struct cryptkop *krp)
++{
++ CpaStatus lacStatus = CPA_STATUS_SUCCESS;
++ CpaCyDsaRSSignOpData *dsaRsSignOpData = NULL;
++ void *callbackTag = NULL;
++ CpaCyRandGenOpData randGenOpData;
++ int primeQSizeInBytes = 0;
++ int doCheck = 0;
++ CpaFlatBuffer randData;
++ CpaBoolean protocolStatus = CPA_FALSE;
++ CpaFlatBuffer *pR = NULL;
++ CpaFlatBuffer *pS = NULL;
++
++ callbackTag = krp;
++
++ BITS_TO_BYTES(primeQSizeInBytes,
++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_Q_INDEX].
++ crp_nbits);
++
++ if (DSA_RS_SIGN_PRIMEQ_SIZE_IN_BYTES != primeQSizeInBytes) {
++ APRINTK("%s(): DSA PRIME Q size not equal to the "
++ "FIPS defined 20bytes, = %d\n",
++ __FUNCTION__, primeQSizeInBytes);
++ krp->krp_status = EDOM;
++ return EDOM;
++ }
++
++ dsaRsSignOpData = kmem_cache_zalloc(drvDSARSSign_zone, GFP_KERNEL);
++ if (NULL == dsaRsSignOpData) {
++ APRINTK("%s():Failed to get memory"
++ " for DSA RS Sign Op data struct\n", __FUNCTION__);
++ krp->krp_status = ENOMEM;
++ return ENOMEM;
++ }
++
++ dsaRsSignOpData->K.pData =
++ kmem_cache_alloc(drvDSARSSignKValue_zone, GFP_ATOMIC);
++
++ if (NULL == dsaRsSignOpData->K.pData) {
++ APRINTK("%s():Failed to get memory"
++ " for DSA RS Sign Op Random value\n", __FUNCTION__);
++ kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData);
++ krp->krp_status = ENOMEM;
++ return ENOMEM;
++ }
++
++ pR = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL);
++ if (NULL == pR) {
++ APRINTK("%s():Failed to get memory"
++ " for DSA signature R\n", __FUNCTION__);
++ kmem_cache_free(drvDSARSSignKValue_zone,
++ dsaRsSignOpData->K.pData);
++ kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData);
++ krp->krp_status = ENOMEM;
++ return ENOMEM;
++ }
++
++ pS = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL);
++ if (NULL == pS) {
++ APRINTK("%s():Failed to get memory"
++ " for DSA signature S\n", __FUNCTION__);
++ icp_ocfDrvFreeFlatBuffer(pR);
++ kmem_cache_free(drvDSARSSignKValue_zone,
++ dsaRsSignOpData->K.pData);
++ kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData);
++ krp->krp_status = ENOMEM;
++ return ENOMEM;
++ }
++
++ /*link prime number parameter for ease of processing */
++ dsaRsSignOpData->P.pData =
++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_P_INDEX].crp_p;
++ BITS_TO_BYTES(dsaRsSignOpData->P.dataLenInBytes,
++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_P_INDEX].
++ crp_nbits);
++
++ icp_ocfDrvSwapBytes(dsaRsSignOpData->P.pData,
++ dsaRsSignOpData->P.dataLenInBytes);
++
++ dsaRsSignOpData->Q.pData =
++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_Q_INDEX].crp_p;
++ BITS_TO_BYTES(dsaRsSignOpData->Q.dataLenInBytes,
++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_Q_INDEX].
++ crp_nbits);
++
++ icp_ocfDrvSwapBytes(dsaRsSignOpData->Q.pData,
++ dsaRsSignOpData->Q.dataLenInBytes);
++
++ /*generate random number with equal buffer size to Prime value Q,
++ but value less than Q */
++ dsaRsSignOpData->K.dataLenInBytes = dsaRsSignOpData->Q.dataLenInBytes;
++
++ randGenOpData.generateBits = CPA_TRUE;
++ randGenOpData.lenInBytes = dsaRsSignOpData->K.dataLenInBytes;
++
++ icp_ocfDrvPtrAndLenToFlatBuffer(dsaRsSignOpData->K.pData,
++ dsaRsSignOpData->K.dataLenInBytes,
++ &randData);
++
++ doCheck = 0;
++ while (icp_ocfDrvCheckALessThanB(&(dsaRsSignOpData->K),
++ &(dsaRsSignOpData->Q), &doCheck)) {
++
++ if (CPA_STATUS_SUCCESS
++ != cpaCyRandGen(CPA_INSTANCE_HANDLE_SINGLE,
++ NULL, NULL, &randGenOpData, &randData)) {
++ APRINTK("%s(): ERROR - Failed to generate DSA RS Sign K"
++ "value\n", __FUNCTION__);
++ icp_ocfDrvFreeFlatBuffer(pS);
++ icp_ocfDrvFreeFlatBuffer(pR);
++ kmem_cache_free(drvDSARSSignKValue_zone,
++ dsaRsSignOpData->K.pData);
++ kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData);
++ krp->krp_status = EAGAIN;
++ return EAGAIN;
++ }
++
++ doCheck++;
++ if (DSA_SIGN_RAND_GEN_VAL_CHECK_MAX_ITERATIONS == doCheck) {
++ APRINTK("%s(): ERROR - Failed to find DSA RS Sign K "
++ "value less than Q value\n", __FUNCTION__);
++ icp_ocfDrvFreeFlatBuffer(pS);
++ icp_ocfDrvFreeFlatBuffer(pR);
++ kmem_cache_free(drvDSARSSignKValue_zone,
++ dsaRsSignOpData->K.pData);
++ kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData);
++ krp->krp_status = EAGAIN;
++ return EAGAIN;
++ }
++
++ }
++ /*Rand Data - no need to swap bytes for pK */
++
++ /* Link parameters */
++ dsaRsSignOpData->G.pData =
++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_G_INDEX].crp_p;
++ BITS_TO_BYTES(dsaRsSignOpData->G.dataLenInBytes,
++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_G_INDEX].crp_nbits);
++
++ icp_ocfDrvSwapBytes(dsaRsSignOpData->G.pData,
++ dsaRsSignOpData->G.dataLenInBytes);
++
++ dsaRsSignOpData->X.pData =
++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_X_INDEX].crp_p;
++ BITS_TO_BYTES(dsaRsSignOpData->X.dataLenInBytes,
++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_X_INDEX].crp_nbits);
++ icp_ocfDrvSwapBytes(dsaRsSignOpData->X.pData,
++ dsaRsSignOpData->X.dataLenInBytes);
++
++ dsaRsSignOpData->M.pData =
++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_DGST_INDEX].crp_p;
++ BITS_TO_BYTES(dsaRsSignOpData->M.dataLenInBytes,
++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_DGST_INDEX].
++ crp_nbits);
++ icp_ocfDrvSwapBytes(dsaRsSignOpData->M.pData,
++ dsaRsSignOpData->M.dataLenInBytes);
++
++ /* Output Parameters */
++ pS->pData = krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_S_RESULT_INDEX].crp_p;
++ BITS_TO_BYTES(pS->dataLenInBytes,
++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_S_RESULT_INDEX].
++ crp_nbits);
++
++ pR->pData = krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_R_RESULT_INDEX].crp_p;
++ BITS_TO_BYTES(pR->dataLenInBytes,
++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_R_RESULT_INDEX].
++ crp_nbits);
++
++ lacStatus = cpaCyDsaSignRS(CPA_INSTANCE_HANDLE_SINGLE,
++ icp_ocfDrvDsaRSSignCallBack,
++ callbackTag, dsaRsSignOpData,
++ &protocolStatus, pR, pS);
++
++ if (CPA_STATUS_SUCCESS != lacStatus) {
++ EPRINTK("%s(): DSA RS Sign Operation failed (%d).\n",
++ __FUNCTION__, lacStatus);
++ krp->krp_status = ECANCELED;
++ icp_ocfDrvFreeFlatBuffer(pS);
++ icp_ocfDrvFreeFlatBuffer(pR);
++ kmem_cache_free(drvDSARSSignKValue_zone,
++ dsaRsSignOpData->K.pData);
++ kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData);
++ }
++
++ return lacStatus;
++}
++
++/* Name : icp_ocfDrvDsaVerify
++ *
++ * Description : This function will map DSA RS Verify from OCF to the LAC API.
++ *
++ */
++static int icp_ocfDrvDsaVerify(struct cryptkop *krp)
++{
++ CpaStatus lacStatus = CPA_STATUS_SUCCESS;
++ CpaCyDsaVerifyOpData *dsaVerifyOpData = NULL;
++ void *callbackTag = NULL;
++ CpaBoolean verifyStatus = CPA_FALSE;
++
++ callbackTag = krp;
++
++ dsaVerifyOpData = kmem_cache_zalloc(drvDSAVerify_zone, GFP_KERNEL);
++ if (NULL == dsaVerifyOpData) {
++ APRINTK("%s():Failed to get memory"
++ " for DSA Verify Op data struct\n", __FUNCTION__);
++ krp->krp_status = ENOMEM;
++ return ENOMEM;
++ }
++
++ /* Link parameters */
++ dsaVerifyOpData->P.pData =
++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PRIME_P_INDEX].crp_p;
++ BITS_TO_BYTES(dsaVerifyOpData->P.dataLenInBytes,
++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PRIME_P_INDEX].
++ crp_nbits);
++ icp_ocfDrvSwapBytes(dsaVerifyOpData->P.pData,
++ dsaVerifyOpData->P.dataLenInBytes);
++
++ dsaVerifyOpData->Q.pData =
++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PRIME_Q_INDEX].crp_p;
++ BITS_TO_BYTES(dsaVerifyOpData->Q.dataLenInBytes,
++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PRIME_Q_INDEX].
++ crp_nbits);
++ icp_ocfDrvSwapBytes(dsaVerifyOpData->Q.pData,
++ dsaVerifyOpData->Q.dataLenInBytes);
++
++ dsaVerifyOpData->G.pData =
++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_G_INDEX].crp_p;
++ BITS_TO_BYTES(dsaVerifyOpData->G.dataLenInBytes,
++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_G_INDEX].
++ crp_nbits);
++ icp_ocfDrvSwapBytes(dsaVerifyOpData->G.pData,
++ dsaVerifyOpData->G.dataLenInBytes);
++
++ dsaVerifyOpData->Y.pData =
++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PUBKEY_INDEX].crp_p;
++ BITS_TO_BYTES(dsaVerifyOpData->Y.dataLenInBytes,
++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PUBKEY_INDEX].
++ crp_nbits);
++ icp_ocfDrvSwapBytes(dsaVerifyOpData->Y.pData,
++ dsaVerifyOpData->Y.dataLenInBytes);
++
++ dsaVerifyOpData->M.pData =
++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_DGST_INDEX].crp_p;
++ BITS_TO_BYTES(dsaVerifyOpData->M.dataLenInBytes,
++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_DGST_INDEX].
++ crp_nbits);
++ icp_ocfDrvSwapBytes(dsaVerifyOpData->M.pData,
++ dsaVerifyOpData->M.dataLenInBytes);
++
++ dsaVerifyOpData->R.pData =
++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_SIG_R_INDEX].crp_p;
++ BITS_TO_BYTES(dsaVerifyOpData->R.dataLenInBytes,
++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_SIG_R_INDEX].
++ crp_nbits);
++ icp_ocfDrvSwapBytes(dsaVerifyOpData->R.pData,
++ dsaVerifyOpData->R.dataLenInBytes);
++
++ dsaVerifyOpData->S.pData =
++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_SIG_S_INDEX].crp_p;
++ BITS_TO_BYTES(dsaVerifyOpData->S.dataLenInBytes,
++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_SIG_S_INDEX].
++ crp_nbits);
++ icp_ocfDrvSwapBytes(dsaVerifyOpData->S.pData,
++ dsaVerifyOpData->S.dataLenInBytes);
++
++ lacStatus = cpaCyDsaVerify(CPA_INSTANCE_HANDLE_SINGLE,
++ icp_ocfDrvDsaVerifyCallBack,
++ callbackTag, dsaVerifyOpData, &verifyStatus);
++
++ if (CPA_STATUS_SUCCESS != lacStatus) {
++ EPRINTK("%s(): DSA Verify Operation failed (%d).\n",
++ __FUNCTION__, lacStatus);
++ kmem_cache_free(drvDSAVerify_zone, dsaVerifyOpData);
++ krp->krp_status = ECANCELED;
++ }
++
++ return lacStatus;
++}
++
++/* Name : icp_ocfDrvReadRandom
++ *
++ * Description : This function will map RNG functionality calls from OCF
++ * to the LAC API.
++ */
++int icp_ocfDrvReadRandom(void *arg, uint32_t * buf, int maxwords)
++{
++ CpaStatus lacStatus = CPA_STATUS_SUCCESS;
++ CpaCyRandGenOpData randGenOpData;
++ CpaFlatBuffer randData;
++
++ if (NULL == buf) {
++ APRINTK("%s(): Invalid input parameters\n", __FUNCTION__);
++ return EINVAL;
++ }
++
++ /* maxwords here is number of integers to generate data for */
++ randGenOpData.generateBits = CPA_TRUE;
++
++ randGenOpData.lenInBytes = maxwords * sizeof(uint32_t);
++
++ icp_ocfDrvPtrAndLenToFlatBuffer((Cpa8U *) buf,
++ randGenOpData.lenInBytes, &randData);
++
++ lacStatus = cpaCyRandGen(CPA_INSTANCE_HANDLE_SINGLE,
++ NULL, NULL, &randGenOpData, &randData);
++ if (CPA_STATUS_SUCCESS != lacStatus) {
++ EPRINTK("%s(): icp_LacSymRandGen failed (%d). \n",
++ __FUNCTION__, lacStatus);
++ return RETURN_RAND_NUM_GEN_FAILED;
++ }
++
++ return randGenOpData.lenInBytes / sizeof(uint32_t);
++}
++
++/* Name : icp_ocfDrvDhP1Callback
++ *
++ * Description : When this function returns it signifies that the LAC
++ * component has completed the DH operation.
++ */
++static void
++icp_ocfDrvDhP1CallBack(void *callbackTag,
++ CpaStatus status,
++ void *pOpData, CpaFlatBuffer * pLocalOctetStringPV)
++{
++ struct cryptkop *krp = NULL;
++ CpaCyDhPhase1KeyGenOpData *pPhase1OpData = NULL;
++
++ if (NULL == callbackTag) {
++ DPRINTK("%s(): Invalid input parameters - "
++ "callbackTag data is NULL\n", __FUNCTION__);
++ return;
++ }
++ krp = (struct cryptkop *)callbackTag;
++
++ if (NULL == pOpData) {
++ DPRINTK("%s(): Invalid input parameters - "
++ "Operation Data is NULL\n", __FUNCTION__);
++ krp->krp_status = ECANCELED;
++ crypto_kdone(krp);
++ return;
++ }
++ pPhase1OpData = (CpaCyDhPhase1KeyGenOpData *) pOpData;
++
++ if (NULL == pLocalOctetStringPV) {
++ DPRINTK("%s(): Invalid input parameters - "
++ "pLocalOctetStringPV Data is NULL\n", __FUNCTION__);
++ memset(pPhase1OpData, 0, sizeof(CpaCyDhPhase1KeyGenOpData));
++ kmem_cache_free(drvDH_zone, pPhase1OpData);
++ krp->krp_status = ECANCELED;
++ crypto_kdone(krp);
++ return;
++ }
++
++ if (CPA_STATUS_SUCCESS == status) {
++ krp->krp_status = CRYPTO_OP_SUCCESS;
++ } else {
++ APRINTK("%s(): Diffie Hellman Phase1 Key Gen failed - "
++ "Operation Status = %d\n", __FUNCTION__, status);
++ krp->krp_status = ECANCELED;
++ }
++
++ icp_ocfDrvSwapBytes(pLocalOctetStringPV->pData,
++ pLocalOctetStringPV->dataLenInBytes);
++
++ icp_ocfDrvFreeFlatBuffer(pLocalOctetStringPV);
++ memset(pPhase1OpData, 0, sizeof(CpaCyDhPhase1KeyGenOpData));
++ kmem_cache_free(drvDH_zone, pPhase1OpData);
++
++ crypto_kdone(krp);
++
++ return;
++}
++
++/* Name : icp_ocfDrvModExpCallBack
++ *
++ * Description : When this function returns it signifies that the LAC
++ * component has completed the Mod Exp operation.
++ */
++static void
++icp_ocfDrvModExpCallBack(void *callbackTag,
++ CpaStatus status,
++ void *pOpdata, CpaFlatBuffer * pResult)
++{
++ struct cryptkop *krp = NULL;
++ CpaCyLnModExpOpData *pLnModExpOpData = NULL;
++
++ if (NULL == callbackTag) {
++ DPRINTK("%s(): Invalid input parameters - "
++ "callbackTag data is NULL\n", __FUNCTION__);
++ return;
++ }
++ krp = (struct cryptkop *)callbackTag;
++
++ if (NULL == pOpdata) {
++ DPRINTK("%s(): Invalid Mod Exp input parameters - "
++ "Operation Data is NULL\n", __FUNCTION__);
++ krp->krp_status = ECANCELED;
++ crypto_kdone(krp);
++ return;
++ }
++ pLnModExpOpData = (CpaCyLnModExpOpData *) pOpdata;
++
++ if (NULL == pResult) {
++ DPRINTK("%s(): Invalid input parameters - "
++ "pResult data is NULL\n", __FUNCTION__);
++ krp->krp_status = ECANCELED;
++ memset(pLnModExpOpData, 0, sizeof(CpaCyLnModExpOpData));
++ kmem_cache_free(drvLnModExp_zone, pLnModExpOpData);
++ crypto_kdone(krp);
++ return;
++ }
++
++ if (CPA_STATUS_SUCCESS == status) {
++ krp->krp_status = CRYPTO_OP_SUCCESS;
++ } else {
++ APRINTK("%s(): LAC Mod Exp Operation failed - "
++ "Operation Status = %d\n", __FUNCTION__, status);
++ krp->krp_status = ECANCELED;
++ }
++
++ icp_ocfDrvSwapBytes(pResult->pData, pResult->dataLenInBytes);
++
++ /*switch base size value back to original */
++ if (pLnModExpOpData->base.pData ==
++ (uint8_t *) & (krp->
++ krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].
++ crp_nbits)) {
++ *((uint32_t *) pLnModExpOpData->base.pData) =
++ ntohl(*((uint32_t *) pLnModExpOpData->base.pData));
++ }
++ icp_ocfDrvFreeFlatBuffer(pResult);
++ memset(pLnModExpOpData, 0, sizeof(CpaCyLnModExpOpData));
++ kmem_cache_free(drvLnModExp_zone, pLnModExpOpData);
++
++ crypto_kdone(krp);
++
++ return;
++
++}
++
++/* Name : icp_ocfDrvModExpCRTCallBack
++ *
++ * Description : When this function returns it signifies that the LAC
++ * component has completed the Mod Exp CRT operation.
++ */
++static void
++icp_ocfDrvModExpCRTCallBack(void *callbackTag,
++ CpaStatus status,
++ void *pOpData, CpaFlatBuffer * pOutputData)
++{
++ struct cryptkop *krp = NULL;
++ CpaCyRsaDecryptOpData *pDecryptData = NULL;
++
++ if (NULL == callbackTag) {
++ DPRINTK("%s(): Invalid input parameters - "
++ "callbackTag data is NULL\n", __FUNCTION__);
++ return;
++ }
++
++ krp = (struct cryptkop *)callbackTag;
++
++ if (NULL == pOpData) {
++ DPRINTK("%s(): Invalid input parameters - "
++ "Operation Data is NULL\n", __FUNCTION__);
++ krp->krp_status = ECANCELED;
++ crypto_kdone(krp);
++ return;
++ }
++ pDecryptData = (CpaCyRsaDecryptOpData *) pOpData;
++
++ if (NULL == pOutputData) {
++ DPRINTK("%s(): Invalid input parameter - "
++ "pOutputData is NULL\n", __FUNCTION__);
++ memset(pDecryptData->pRecipientPrivateKey, 0,
++ sizeof(CpaCyRsaPrivateKey));
++ kmem_cache_free(drvRSAPrivateKey_zone,
++ pDecryptData->pRecipientPrivateKey);
++ memset(pDecryptData, 0, sizeof(CpaCyRsaDecryptOpData));
++ kmem_cache_free(drvRSADecrypt_zone, pDecryptData);
++ krp->krp_status = ECANCELED;
++ crypto_kdone(krp);
++ return;
++ }
++
++ if (CPA_STATUS_SUCCESS == status) {
++ krp->krp_status = CRYPTO_OP_SUCCESS;
++ } else {
++ APRINTK("%s(): LAC Mod Exp CRT operation failed - "
++ "Operation Status = %d\n", __FUNCTION__, status);
++ krp->krp_status = ECANCELED;
++ }
++
++ icp_ocfDrvSwapBytes(pOutputData->pData, pOutputData->dataLenInBytes);
++
++ icp_ocfDrvFreeFlatBuffer(pOutputData);
++ memset(pDecryptData->pRecipientPrivateKey, 0,
++ sizeof(CpaCyRsaPrivateKey));
++ kmem_cache_free(drvRSAPrivateKey_zone,
++ pDecryptData->pRecipientPrivateKey);
++ memset(pDecryptData, 0, sizeof(CpaCyRsaDecryptOpData));
++ kmem_cache_free(drvRSADecrypt_zone, pDecryptData);
++
++ crypto_kdone(krp);
++
++ return;
++}
++
++/* Name : icp_ocfDrvDsaRSSignCallBack
++ *
++ * Description : When this function returns it signifies that the LAC
++ * component has completed the DSA RS sign operation.
++ */
++static void
++icp_ocfDrvDsaRSSignCallBack(void *callbackTag,
++ CpaStatus status,
++ void *pOpData,
++ CpaBoolean protocolStatus,
++ CpaFlatBuffer * pR, CpaFlatBuffer * pS)
++{
++ struct cryptkop *krp = NULL;
++ CpaCyDsaRSSignOpData *pSignData = NULL;
++
++ if (NULL == callbackTag) {
++ DPRINTK("%s(): Invalid input parameters - "
++ "callbackTag data is NULL\n", __FUNCTION__);
++ return;
++ }
++
++ krp = (struct cryptkop *)callbackTag;
++
++ if (NULL == pOpData) {
++ DPRINTK("%s(): Invalid input parameters - "
++ "Operation Data is NULL\n", __FUNCTION__);
++ krp->krp_status = ECANCELED;
++ crypto_kdone(krp);
++ return;
++ }
++ pSignData = (CpaCyDsaRSSignOpData *) pOpData;
++
++ if (NULL == pR) {
++ DPRINTK("%s(): Invalid input parameter - "
++ "pR sign is NULL\n", __FUNCTION__);
++ icp_ocfDrvFreeFlatBuffer(pS);
++ kmem_cache_free(drvDSARSSign_zone, pSignData);
++ krp->krp_status = ECANCELED;
++ crypto_kdone(krp);
++ return;
++ }
++
++ if (NULL == pS) {
++ DPRINTK("%s(): Invalid input parameter - "
++ "pS sign is NULL\n", __FUNCTION__);
++ icp_ocfDrvFreeFlatBuffer(pR);
++ kmem_cache_free(drvDSARSSign_zone, pSignData);
++ krp->krp_status = ECANCELED;
++ crypto_kdone(krp);
++ return;
++ }
++
++ if (CPA_STATUS_SUCCESS != status) {
++ APRINTK("%s(): LAC DSA RS Sign operation failed - "
++ "Operation Status = %d\n", __FUNCTION__, status);
++ krp->krp_status = ECANCELED;
++ } else {
++ krp->krp_status = CRYPTO_OP_SUCCESS;
++
++ if (CPA_TRUE != protocolStatus) {
++ DPRINTK("%s(): LAC DSA RS Sign operation failed due "
++ "to protocol error\n", __FUNCTION__);
++ krp->krp_status = EIO;
++ }
++ }
++
++ /* Swap bytes only when the callback status is successful and
++ protocolStatus is set to true */
++ if (CPA_STATUS_SUCCESS == status && CPA_TRUE == protocolStatus) {
++ icp_ocfDrvSwapBytes(pR->pData, pR->dataLenInBytes);
++ icp_ocfDrvSwapBytes(pS->pData, pS->dataLenInBytes);
++ }
++
++ icp_ocfDrvFreeFlatBuffer(pR);
++ icp_ocfDrvFreeFlatBuffer(pS);
++ memset(pSignData->K.pData, 0, pSignData->K.dataLenInBytes);
++ kmem_cache_free(drvDSARSSignKValue_zone, pSignData->K.pData);
++ memset(pSignData, 0, sizeof(CpaCyDsaRSSignOpData));
++ kmem_cache_free(drvDSARSSign_zone, pSignData);
++ crypto_kdone(krp);
++
++ return;
++}
++
++/* Name : icp_ocfDrvDsaVerifyCallback
++ *
++ * Description : When this function returns it signifies that the LAC
++ * component has completed the DSA Verify operation.
++ */
++static void
++icp_ocfDrvDsaVerifyCallBack(void *callbackTag,
++ CpaStatus status,
++ void *pOpData, CpaBoolean verifyStatus)
++{
++
++ struct cryptkop *krp = NULL;
++ CpaCyDsaVerifyOpData *pVerData = NULL;
++
++ if (NULL == callbackTag) {
++ DPRINTK("%s(): Invalid input parameters - "
++ "callbackTag data is NULL\n", __FUNCTION__);
++ return;
++ }
++
++ krp = (struct cryptkop *)callbackTag;
++
++ if (NULL == pOpData) {
++ DPRINTK("%s(): Invalid input parameters - "
++ "Operation Data is NULL\n", __FUNCTION__);
++ krp->krp_status = ECANCELED;
++ crypto_kdone(krp);
++ return;
++ }
++ pVerData = (CpaCyDsaVerifyOpData *) pOpData;
++
++ if (CPA_STATUS_SUCCESS != status) {
++ APRINTK("%s(): LAC DSA Verify operation failed - "
++ "Operation Status = %d\n", __FUNCTION__, status);
++ krp->krp_status = ECANCELED;
++ } else {
++ krp->krp_status = CRYPTO_OP_SUCCESS;
++
++ if (CPA_TRUE != verifyStatus) {
++ DPRINTK("%s(): DSA signature invalid\n", __FUNCTION__);
++ krp->krp_status = EIO;
++ }
++ }
++
++ /* Swap bytes only when the callback status is successful and
++ verifyStatus is set to true */
++ /*Just swapping back the key values for now. Possibly all
++ swapped buffers need to be reverted */
++ if (CPA_STATUS_SUCCESS == status && CPA_TRUE == verifyStatus) {
++ icp_ocfDrvSwapBytes(pVerData->R.pData,
++ pVerData->R.dataLenInBytes);
++ icp_ocfDrvSwapBytes(pVerData->S.pData,
++ pVerData->S.dataLenInBytes);
++ }
++
++ memset(pVerData, 0, sizeof(CpaCyDsaVerifyOpData));
++ kmem_cache_free(drvDSAVerify_zone, pVerData);
++ crypto_kdone(krp);
++
++ return;
++}
+--- /dev/null
++++ b/crypto/ocf/ep80579/icp_common.c
+@@ -0,0 +1,891 @@
++/***************************************************************************
++ *
++ * This file is provided under a dual BSD/GPLv2 license. When using or
++ * redistributing this file, you may do so under either license.
++ *
++ * GPL LICENSE SUMMARY
++ *
++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of version 2 of the GNU General Public License as
++ * published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
++ * The full GNU General Public License is included in this distribution
++ * in the file called LICENSE.GPL.
++ *
++ * Contact Information:
++ * Intel Corporation
++ *
++ * BSD LICENSE
++ *
++ * Copyright(c) 2007,2008 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.
++ *
++ *
++ * version: Security.L.1.0.130
++ *
++ ***************************************************************************/
++
++/*
++ * An OCF module that uses Intel® QuickAssist Integrated Accelerator to do the
++ * crypto.
++ *
++ * This driver requires the ICP Access Library that is available from Intel in
++ * order to operate.
++ */
++
++#include "icp_ocf.h"
++
++#define ICP_OCF_COMP_NAME "ICP_OCF"
++#define ICP_OCF_VER_MAIN (2)
++#define ICP_OCF_VER_MJR (0)
++#define ICP_OCF_VER_MNR (0)
++
++#define MAX_DEREG_RETRIES (100)
++#define DEFAULT_DEREG_RETRIES (10)
++#define DEFAULT_DEREG_DELAY_IN_JIFFIES (10)
++
++/* This defines the maximum number of sessions possible between OCF
++ and the OCF Tolapai Driver. If set to zero, there is no limit. */
++#define DEFAULT_OCF_TO_DRV_MAX_SESSION_COUNT (0)
++#define NUM_SUPPORTED_CAPABILITIES (21)
++
++/*Slabs zones*/
++struct kmem_cache *drvSessionData_zone = NULL;
++struct kmem_cache *drvOpData_zone = NULL;
++struct kmem_cache *drvDH_zone = NULL;
++struct kmem_cache *drvLnModExp_zone = NULL;
++struct kmem_cache *drvRSADecrypt_zone = NULL;
++struct kmem_cache *drvRSAPrivateKey_zone = NULL;
++struct kmem_cache *drvDSARSSign_zone = NULL;
++struct kmem_cache *drvDSARSSignKValue_zone = NULL;
++struct kmem_cache *drvDSAVerify_zone = NULL;
++
++/*Slab zones for flatbuffers and bufferlist*/
++struct kmem_cache *drvFlatBuffer_zone = NULL;
++
++static int icp_ocfDrvInit(void);
++static void icp_ocfDrvExit(void);
++static void icp_ocfDrvFreeCaches(void);
++static void icp_ocfDrvDeferedFreeLacSessionProcess(void *arg);
++
++int32_t icp_ocfDrvDriverId = INVALID_DRIVER_ID;
++
++/* Module parameter - gives the number of times LAC deregistration shall be
++ re-tried */
++int num_dereg_retries = DEFAULT_DEREG_RETRIES;
++
++/* Module parameter - gives the delay time in jiffies before a LAC session
++ shall be attempted to be deregistered again */
++int dereg_retry_delay_in_jiffies = DEFAULT_DEREG_DELAY_IN_JIFFIES;
++
++/* Module parameter - gives the maximum number of sessions possible between
++ OCF and the OCF Tolapai Driver. If set to zero, there is no limit.*/
++int max_sessions = DEFAULT_OCF_TO_DRV_MAX_SESSION_COUNT;
++
++/* This is set when the module is removed from the system, no further
++ processing can take place if this is set */
++atomic_t icp_ocfDrvIsExiting = ATOMIC_INIT(0);
++
++/* This is used to show how many lac sessions were not deregistered*/
++atomic_t lac_session_failed_dereg_count = ATOMIC_INIT(0);
++
++/* This is used to track the number of registered sessions between OCF and
++ * and the OCF Tolapai driver, when max_session is set to value other than
++ * zero. This ensures that the max_session set for the OCF and the driver
++ * is equal to the LAC registered sessions */
++atomic_t num_ocf_to_drv_registered_sessions = ATOMIC_INIT(0);
++
++/* Head of linked list used to store session data */
++struct list_head icp_ocfDrvGlobalSymListHead;
++struct list_head icp_ocfDrvGlobalSymListHead_FreeMemList;
++
++spinlock_t icp_ocfDrvSymSessInfoListSpinlock = SPIN_LOCK_UNLOCKED;
++rwlock_t icp_kmem_cache_destroy_alloc_lock = RW_LOCK_UNLOCKED;
++
++struct workqueue_struct *icp_ocfDrvFreeLacSessionWorkQ;
++
++struct icp_drvBuffListInfo defBuffListInfo;
++
++static struct {
++ softc_device_decl sc_dev;
++} icpDev;
++
++static device_method_t icp_methods = {
++ /* crypto device methods */
++ DEVMETHOD(cryptodev_newsession, icp_ocfDrvNewSession),
++ DEVMETHOD(cryptodev_freesession, icp_ocfDrvFreeLACSession),
++ DEVMETHOD(cryptodev_process, icp_ocfDrvSymProcess),
++ DEVMETHOD(cryptodev_kprocess, icp_ocfDrvPkeProcess),
++};
++
++module_param(num_dereg_retries, int, S_IRUGO);
++module_param(dereg_retry_delay_in_jiffies, int, S_IRUGO);
++module_param(max_sessions, int, S_IRUGO);
++
++MODULE_PARM_DESC(num_dereg_retries,
++ "Number of times to retry LAC Sym Session Deregistration. "
++ "Default 10, Max 100");
++MODULE_PARM_DESC(dereg_retry_delay_in_jiffies, "Delay in jiffies "
++ "(added to a schedule() function call) before a LAC Sym "
++ "Session Dereg is retried. Default 10");
++MODULE_PARM_DESC(max_sessions, "This sets the maximum number of sessions "
++ "between OCF and this driver. If this value is set to zero, "
++ "max session count checking is disabled. Default is zero(0)");
++
++/* Name : icp_ocfDrvInit
++ *
++ * Description : This function will register all the symmetric and asymmetric
++ * functionality that will be accelerated by the hardware. It will also
++ * get a unique driver ID from the OCF and initialise all slab caches
++ */
++static int __init icp_ocfDrvInit(void)
++{
++ int ocfStatus = 0;
++
++ IPRINTK("=== %s ver %d.%d.%d ===\n", ICP_OCF_COMP_NAME,
++ ICP_OCF_VER_MAIN, ICP_OCF_VER_MJR, ICP_OCF_VER_MNR);
++
++ if (MAX_DEREG_RETRIES < num_dereg_retries) {
++ EPRINTK("Session deregistration retry count set to greater "
++ "than %d", MAX_DEREG_RETRIES);
++ return -1;
++ }
++
++ /* Initialize and Start the Cryptographic component */
++ if (CPA_STATUS_SUCCESS !=
++ cpaCyStartInstance(CPA_INSTANCE_HANDLE_SINGLE)) {
++ EPRINTK("Failed to initialize and start the instance "
++ "of the Cryptographic component.\n");
++ return -1;
++ }
++
++ /* Set the default size of BufferList to allocate */
++ memset(&defBuffListInfo, 0, sizeof(struct icp_drvBuffListInfo));
++ if (ICP_OCF_DRV_STATUS_SUCCESS !=
++ icp_ocfDrvBufferListMemInfo(ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS,
++ &defBuffListInfo)) {
++ EPRINTK("Failed to get bufferlist memory info.\n");
++ return -1;
++ }
++
++ /*Register OCF Tolapai Driver with OCF */
++ memset(&icpDev, 0, sizeof(icpDev));
++ softc_device_init(&icpDev, "icp", 0, icp_methods);
++
++ icp_ocfDrvDriverId = crypto_get_driverid(softc_get_device(&icpDev),
++ CRYPTOCAP_F_HARDWARE);
++
++ if (icp_ocfDrvDriverId < 0) {
++ EPRINTK("%s : ICP driver failed to register with OCF!\n",
++ __FUNCTION__);
++ return -ENODEV;
++ }
++
++ /*Create all the slab caches used by the OCF Tolapai Driver */
++ drvSessionData_zone =
++ ICP_CACHE_CREATE("ICP Session Data", struct icp_drvSessionData);
++ ICP_CACHE_NULL_CHECK(drvSessionData_zone);
++
++ /*
++ * Allocation of the OpData includes the allocation space for meta data.
++ * The memory after the opData structure is reserved for this meta data.
++ */
++ drvOpData_zone =
++ kmem_cache_create("ICP Op Data", sizeof(struct icp_drvOpData) +
++ defBuffListInfo.metaSize ,0, SLAB_HWCACHE_ALIGN, NULL, NULL);
++
++
++ ICP_CACHE_NULL_CHECK(drvOpData_zone);
++
++ drvDH_zone = ICP_CACHE_CREATE("ICP DH data", CpaCyDhPhase1KeyGenOpData);
++ ICP_CACHE_NULL_CHECK(drvDH_zone);
++
++ drvLnModExp_zone =
++ ICP_CACHE_CREATE("ICP ModExp data", CpaCyLnModExpOpData);
++ ICP_CACHE_NULL_CHECK(drvLnModExp_zone);
++
++ drvRSADecrypt_zone =
++ ICP_CACHE_CREATE("ICP RSA decrypt data", CpaCyRsaDecryptOpData);
++ ICP_CACHE_NULL_CHECK(drvRSADecrypt_zone);
++
++ drvRSAPrivateKey_zone =
++ ICP_CACHE_CREATE("ICP RSA private key data", CpaCyRsaPrivateKey);
++ ICP_CACHE_NULL_CHECK(drvRSAPrivateKey_zone);
++
++ drvDSARSSign_zone =
++ ICP_CACHE_CREATE("ICP DSA Sign", CpaCyDsaRSSignOpData);
++ ICP_CACHE_NULL_CHECK(drvDSARSSign_zone);
++
++ /*too awkward to use a macro here */
++ drvDSARSSignKValue_zone =
++ kmem_cache_create("ICP DSA Sign Rand Val",
++ DSA_RS_SIGN_PRIMEQ_SIZE_IN_BYTES, 0,
++ SLAB_HWCACHE_ALIGN, NULL, NULL);
++ ICP_CACHE_NULL_CHECK(drvDSARSSignKValue_zone);
++
++ drvDSAVerify_zone =
++ ICP_CACHE_CREATE("ICP DSA Verify", CpaCyDsaVerifyOpData);
++ ICP_CACHE_NULL_CHECK(drvDSAVerify_zone);
++
++ drvFlatBuffer_zone =
++ ICP_CACHE_CREATE("ICP Flat Buffers", CpaFlatBuffer);
++ ICP_CACHE_NULL_CHECK(drvFlatBuffer_zone);
++
++ /* Register the ICP symmetric crypto support. */
++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_NULL_CBC);
++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_DES_CBC);
++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_3DES_CBC);
++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_AES_CBC);
++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_ARC4);
++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_MD5);
++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_MD5_HMAC);
++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA1);
++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA1_HMAC);
++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_256);
++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_256_HMAC);
++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_384);
++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_384_HMAC);
++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_512);
++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_512_HMAC);
++
++ /* Register the ICP asymmetric algorithm support */
++ ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_DH_COMPUTE_KEY);
++ ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_MOD_EXP);
++ ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_MOD_EXP_CRT);
++ ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_DSA_SIGN);
++ ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_DSA_VERIFY);
++
++ /* Register the ICP random number generator support */
++ if (OCF_REGISTRATION_STATUS_SUCCESS ==
++ crypto_rregister(icp_ocfDrvDriverId, icp_ocfDrvReadRandom, NULL)) {
++ ocfStatus++;
++ }
++
++ if (OCF_ZERO_FUNCTIONALITY_REGISTERED == ocfStatus) {
++ DPRINTK("%s: Failed to register any device capabilities\n",
++ __FUNCTION__);
++ icp_ocfDrvFreeCaches();
++ icp_ocfDrvDriverId = INVALID_DRIVER_ID;
++ return -ECANCELED;
++ }
++
++ DPRINTK("%s: Registered %d of %d device capabilities\n",
++ __FUNCTION__, ocfStatus, NUM_SUPPORTED_CAPABILITIES);
++
++/*Session data linked list used during module exit*/
++ INIT_LIST_HEAD(&icp_ocfDrvGlobalSymListHead);
++ INIT_LIST_HEAD(&icp_ocfDrvGlobalSymListHead_FreeMemList);
++
++ icp_ocfDrvFreeLacSessionWorkQ =
++ create_singlethread_workqueue("ocfLacDeregWorkQueue");
++
++ return 0;
++}
++
++/* Name : icp_ocfDrvExit
++ *
++ * Description : This function will deregister all the symmetric sessions
++ * registered with the LAC component. It will also deregister all symmetric
++ * and asymmetric functionality that can be accelerated by the hardware via OCF
++ * and random number generation if it is enabled.
++ */
++static void icp_ocfDrvExit(void)
++{
++ CpaStatus lacStatus = CPA_STATUS_SUCCESS;
++ struct icp_drvSessionData *sessionData = NULL;
++ struct icp_drvSessionData *tempSessionData = NULL;
++ int i, remaining_delay_time_in_jiffies = 0;
++ /* There is a possibility of a process or new session command being */
++ /* sent before this variable is incremented. The aim of this variable */
++ /* is to stop a loop of calls creating a deadlock situation which */
++ /* would prevent the driver from exiting. */
++
++ atomic_inc(&icp_ocfDrvIsExiting);
++
++ /*Existing sessions will be routed to another driver after these calls */
++ crypto_unregister_all(icp_ocfDrvDriverId);
++ crypto_runregister_all(icp_ocfDrvDriverId);
++
++ /*If any sessions are waiting to be deregistered, do that. This also
++ flushes the work queue */
++ destroy_workqueue(icp_ocfDrvFreeLacSessionWorkQ);
++
++ /*ENTER CRITICAL SECTION */
++ spin_lock_bh(&icp_ocfDrvSymSessInfoListSpinlock);
++ list_for_each_entry_safe(tempSessionData, sessionData,
++ &icp_ocfDrvGlobalSymListHead, listNode) {
++ for (i = 0; i < num_dereg_retries; i++) {
++ /*No harm if bad input - LAC will handle error cases */
++ if (ICP_SESSION_RUNNING == tempSessionData->inUse) {
++ lacStatus =
++ cpaCySymRemoveSession
++ (CPA_INSTANCE_HANDLE_SINGLE,
++ tempSessionData->sessHandle);
++ if (CPA_STATUS_SUCCESS == lacStatus) {
++ /* Succesfully deregistered */
++ break;
++ } else if (CPA_STATUS_RETRY != lacStatus) {
++ atomic_inc
++ (&lac_session_failed_dereg_count);
++ break;
++ }
++
++ /*schedule_timout returns the time left for completion if
++ * this task is set to TASK_INTERRUPTIBLE */
++ remaining_delay_time_in_jiffies =
++ dereg_retry_delay_in_jiffies;
++ while (0 > remaining_delay_time_in_jiffies) {
++ remaining_delay_time_in_jiffies =
++ schedule_timeout
++ (remaining_delay_time_in_jiffies);
++ }
++
++ DPRINTK
++ ("%s(): Retry %d to deregistrate the session\n",
++ __FUNCTION__, i);
++ }
++ }
++
++ /*remove from current list */
++ list_del(&(tempSessionData->listNode));
++ /*add to free mem linked list */
++ list_add(&(tempSessionData->listNode),
++ &icp_ocfDrvGlobalSymListHead_FreeMemList);
++
++ }
++
++ /*EXIT CRITICAL SECTION */
++ spin_unlock_bh(&icp_ocfDrvSymSessInfoListSpinlock);
++
++ /*set back to initial values */
++ sessionData = NULL;
++ /*still have a reference in our list! */
++ tempSessionData = NULL;
++ /*free memory */
++ list_for_each_entry_safe(tempSessionData, sessionData,
++ &icp_ocfDrvGlobalSymListHead_FreeMemList,
++ listNode) {
++
++ list_del(&(tempSessionData->listNode));
++ /* Free allocated CpaCySymSessionCtx */
++ if (NULL != tempSessionData->sessHandle) {
++ kfree(tempSessionData->sessHandle);
++ }
++ memset(tempSessionData, 0, sizeof(struct icp_drvSessionData));
++ kmem_cache_free(drvSessionData_zone, tempSessionData);
++ }
++
++ if (0 != atomic_read(&lac_session_failed_dereg_count)) {
++ DPRINTK("%s(): %d LAC sessions were not deregistered "
++ "correctly. This is not a clean exit! \n",
++ __FUNCTION__,
++ atomic_read(&lac_session_failed_dereg_count));
++ }
++
++ icp_ocfDrvFreeCaches();
++ icp_ocfDrvDriverId = INVALID_DRIVER_ID;
++
++ /* Shutdown the Cryptographic component */
++ lacStatus = cpaCyStopInstance(CPA_INSTANCE_HANDLE_SINGLE);
++ if (CPA_STATUS_SUCCESS != lacStatus) {
++ DPRINTK("%s(): Failed to stop instance of the "
++ "Cryptographic component.(status == %d)\n",
++ __FUNCTION__, lacStatus);
++ }
++
++}
++
++/* Name : icp_ocfDrvFreeCaches
++ *
++ * Description : This function deregisters all slab caches
++ */
++static void icp_ocfDrvFreeCaches(void)
++{
++ if (atomic_read(&icp_ocfDrvIsExiting) != CPA_TRUE) {
++ atomic_set(&icp_ocfDrvIsExiting, 1);
++ }
++
++ /*Sym Zones */
++ ICP_CACHE_DESTROY(drvSessionData_zone);
++ ICP_CACHE_DESTROY(drvOpData_zone);
++
++ /*Asym zones */
++ ICP_CACHE_DESTROY(drvDH_zone);
++ ICP_CACHE_DESTROY(drvLnModExp_zone);
++ ICP_CACHE_DESTROY(drvRSADecrypt_zone);
++ ICP_CACHE_DESTROY(drvRSAPrivateKey_zone);
++ ICP_CACHE_DESTROY(drvDSARSSignKValue_zone);
++ ICP_CACHE_DESTROY(drvDSARSSign_zone);
++ ICP_CACHE_DESTROY(drvDSAVerify_zone);
++
++ /*FlatBuffer and BufferList Zones */
++ ICP_CACHE_DESTROY(drvFlatBuffer_zone);
++
++}
++
++/* Name : icp_ocfDrvDeregRetry
++ *
++ * Description : This function will try to farm the session deregistration
++ * off to a work queue. If it fails, nothing more can be done and it
++ * returns an error
++ */
++
++int icp_ocfDrvDeregRetry(CpaCySymSessionCtx sessionToDeregister)
++{
++ struct icp_ocfDrvFreeLacSession *workstore = NULL;
++
++ DPRINTK("%s(): Retry - Deregistering session (%p)\n",
++ __FUNCTION__, sessionToDeregister);
++
++ /*make sure the session is not available to be allocated during this
++ process */
++ atomic_inc(&lac_session_failed_dereg_count);
++
++ /*Farm off to work queue */
++ workstore =
++ kmalloc(sizeof(struct icp_ocfDrvFreeLacSession), GFP_ATOMIC);
++ if (NULL == workstore) {
++ DPRINTK("%s(): unable to free session - no memory available "
++ "for work queue\n", __FUNCTION__);
++ return ENOMEM;
++ }
++
++ workstore->sessionToDeregister = sessionToDeregister;
++
++ INIT_WORK(&(workstore->work), icp_ocfDrvDeferedFreeLacSessionProcess,
++ workstore);
++ queue_work(icp_ocfDrvFreeLacSessionWorkQ, &(workstore->work));
++
++ return ICP_OCF_DRV_STATUS_SUCCESS;
++
++}
++
++/* Name : icp_ocfDrvDeferedFreeLacSessionProcess
++ *
++ * Description : This function will retry (module input parameter)
++ * 'num_dereg_retries' times to deregister any symmetric session that recieves a
++ * CPA_STATUS_RETRY message from the LAC component. This function is run in
++ * Thread context because it is called from a worker thread
++ */
++static void icp_ocfDrvDeferedFreeLacSessionProcess(void *arg)
++{
++ struct icp_ocfDrvFreeLacSession *workstore = NULL;
++ CpaCySymSessionCtx sessionToDeregister = NULL;
++ int i = 0;
++ int remaining_delay_time_in_jiffies = 0;
++ CpaStatus lacStatus = CPA_STATUS_SUCCESS;
++
++ workstore = (struct icp_ocfDrvFreeLacSession *)arg;
++ if (NULL == workstore) {
++ DPRINTK("%s() function called with null parameter \n",
++ __FUNCTION__);
++ return;
++ }
++
++ sessionToDeregister = workstore->sessionToDeregister;
++ kfree(workstore);
++
++ /*if exiting, give deregistration one more blast only */
++ if (atomic_read(&icp_ocfDrvIsExiting) == CPA_TRUE) {
++ lacStatus = cpaCySymRemoveSession(CPA_INSTANCE_HANDLE_SINGLE,
++ sessionToDeregister);
++
++ if (lacStatus != CPA_STATUS_SUCCESS) {
++ DPRINTK("%s() Failed to Dereg LAC session %p "
++ "during module exit\n", __FUNCTION__,
++ sessionToDeregister);
++ return;
++ }
++
++ atomic_dec(&lac_session_failed_dereg_count);
++ return;
++ }
++
++ for (i = 0; i <= num_dereg_retries; i++) {
++ lacStatus = cpaCySymRemoveSession(CPA_INSTANCE_HANDLE_SINGLE,
++ sessionToDeregister);
++
++ if (lacStatus == CPA_STATUS_SUCCESS) {
++ atomic_dec(&lac_session_failed_dereg_count);
++ return;
++ }
++ if (lacStatus != CPA_STATUS_RETRY) {
++ DPRINTK("%s() Failed to deregister session - lacStatus "
++ " = %d", __FUNCTION__, lacStatus);
++ break;
++ }
++
++ /*schedule_timout returns the time left for completion if this
++ task is set to TASK_INTERRUPTIBLE */
++ remaining_delay_time_in_jiffies = dereg_retry_delay_in_jiffies;
++ while (0 > remaining_delay_time_in_jiffies) {
++ remaining_delay_time_in_jiffies =
++ schedule_timeout(remaining_delay_time_in_jiffies);
++ }
++
++ }
++
++ DPRINTK("%s(): Unable to deregister session\n", __FUNCTION__);
++ DPRINTK("%s(): Number of unavailable LAC sessions = %d\n", __FUNCTION__,
++ atomic_read(&lac_session_failed_dereg_count));
++}
++
++/* Name : icp_ocfDrvPtrAndLenToFlatBuffer
++ *
++ * Description : This function converts a "pointer and length" buffer
++ * structure to Fredericksburg Flat Buffer (CpaFlatBuffer) format.
++ *
++ * This function assumes that the data passed in are valid.
++ */
++inline void
++icp_ocfDrvPtrAndLenToFlatBuffer(void *pData, uint32_t len,
++ CpaFlatBuffer * pFlatBuffer)
++{
++ pFlatBuffer->pData = pData;
++ pFlatBuffer->dataLenInBytes = len;
++}
++
++/* Name : icp_ocfDrvSingleSkBuffToFlatBuffer
++ *
++ * Description : This function converts a single socket buffer (sk_buff)
++ * structure to a Fredericksburg Flat Buffer (CpaFlatBuffer) format.
++ *
++ * This function assumes that the data passed in are valid.
++ */
++static inline void
++icp_ocfDrvSingleSkBuffToFlatBuffer(struct sk_buff *pSkb,
++ CpaFlatBuffer * pFlatBuffer)
++{
++ pFlatBuffer->pData = pSkb->data;
++ pFlatBuffer->dataLenInBytes = skb_headlen(pSkb);
++}
++
++/* Name : icp_ocfDrvSkBuffToBufferList
++ *
++ * Description : This function converts a socket buffer (sk_buff) structure to
++ * Fredericksburg Scatter/Gather (CpaBufferList) buffer format.
++ *
++ * This function assumes that the bufferlist has been allocated with the correct
++ * number of buffer arrays.
++ *
++ */
++inline int
++icp_ocfDrvSkBuffToBufferList(struct sk_buff *pSkb, CpaBufferList * bufferList)
++{
++ CpaFlatBuffer *curFlatBuffer = NULL;
++ char *skbuffPageAddr = NULL;
++ struct sk_buff *pCurFrag = NULL;
++ struct skb_shared_info *pShInfo = NULL;
++ uint32_t page_offset = 0, i = 0;
++
++ DPRINTK("%s(): Entry Point\n", __FUNCTION__);
++
++ /*
++ * In all cases, the first skb needs to be translated to FlatBuffer.
++ * Perform a buffer translation for the first skbuff
++ */
++ curFlatBuffer = bufferList->pBuffers;
++ icp_ocfDrvSingleSkBuffToFlatBuffer(pSkb, curFlatBuffer);
++
++ /* Set the userData to point to the original sk_buff */
++ bufferList->pUserData = (void *)pSkb;
++
++ /* We now know we'll have at least one element in the SGL */
++ bufferList->numBuffers = 1;
++
++ if (0 == skb_is_nonlinear(pSkb)) {
++ /* Is a linear buffer - therefore it's a single skbuff */
++ DPRINTK("%s(): Exit Point\n", __FUNCTION__);
++ return ICP_OCF_DRV_STATUS_SUCCESS;
++ }
++
++ curFlatBuffer++;
++ pShInfo = skb_shinfo(pSkb);
++ if (pShInfo->frag_list != NULL && pShInfo->nr_frags != 0) {
++ EPRINTK("%s():"
++ "Translation for a combination of frag_list "
++ "and frags[] array not supported!\n", __FUNCTION__);
++ return ICP_OCF_DRV_STATUS_FAIL;
++ } else if (pShInfo->frag_list != NULL) {
++ /*
++ * Non linear skbuff supported through frag_list
++ * Perform translation for each fragment (sk_buff)
++ * in the frag_list of the first sk_buff.
++ */
++ for (pCurFrag = pShInfo->frag_list;
++ pCurFrag != NULL; pCurFrag = pCurFrag->next) {
++ icp_ocfDrvSingleSkBuffToFlatBuffer(pCurFrag,
++ curFlatBuffer);
++ curFlatBuffer++;
++ bufferList->numBuffers++;
++ }
++ } else if (pShInfo->nr_frags != 0) {
++ /*
++ * Perform translation for each fragment in frags array
++ * and add to the BufferList
++ */
++ for (i = 0; i < pShInfo->nr_frags; i++) {
++ /* Get the page address and offset of this frag */
++ skbuffPageAddr = (char *)pShInfo->frags[i].page;
++ page_offset = pShInfo->frags[i].page_offset;
++
++ /* Convert a pointer and length to a flat buffer */
++ icp_ocfDrvPtrAndLenToFlatBuffer(skbuffPageAddr +
++ page_offset,
++ pShInfo->frags[i].size,
++ curFlatBuffer);
++ curFlatBuffer++;
++ bufferList->numBuffers++;
++ }
++ } else {
++ EPRINTK("%s():" "Could not recognize skbuff fragments!\n",
++ __FUNCTION__);
++ return ICP_OCF_DRV_STATUS_FAIL;
++ }
++
++ DPRINTK("%s(): Exit Point\n", __FUNCTION__);
++ return ICP_OCF_DRV_STATUS_SUCCESS;
++}
++
++/* Name : icp_ocfDrvBufferListToSkBuff
++ *
++ * Description : This function converts a Fredericksburg Scatter/Gather
++ * (CpaBufferList) buffer format to socket buffer structure.
++ */
++inline int
++icp_ocfDrvBufferListToSkBuff(CpaBufferList * bufferList, struct sk_buff **skb)
++{
++ DPRINTK("%s(): Entry Point\n", __FUNCTION__);
++
++ /* Retrieve the orignal skbuff */
++ *skb = (struct sk_buff *)bufferList->pUserData;
++ if (NULL == *skb) {
++ EPRINTK("%s():"
++ "Error on converting from a BufferList. "
++ "The BufferList does not contain an sk_buff.\n",
++ __FUNCTION__);
++ return ICP_OCF_DRV_STATUS_FAIL;
++ }
++ DPRINTK("%s(): Exit Point\n", __FUNCTION__);
++ return ICP_OCF_DRV_STATUS_SUCCESS;
++}
++
++/* Name : icp_ocfDrvPtrAndLenToBufferList
++ *
++ * Description : This function converts a "pointer and length" buffer
++ * structure to Fredericksburg Scatter/Gather Buffer (CpaBufferList) format.
++ *
++ * This function assumes that the data passed in are valid.
++ */
++inline void
++icp_ocfDrvPtrAndLenToBufferList(void *pDataIn, uint32_t length,
++ CpaBufferList * pBufferList)
++{
++ pBufferList->numBuffers = 1;
++ pBufferList->pBuffers->pData = pDataIn;
++ pBufferList->pBuffers->dataLenInBytes = length;
++}
++
++/* Name : icp_ocfDrvBufferListToPtrAndLen
++ *
++ * Description : This function converts Fredericksburg Scatter/Gather Buffer
++ * (CpaBufferList) format to a "pointer and length" buffer structure.
++ *
++ * This function assumes that the data passed in are valid.
++ */
++inline void
++icp_ocfDrvBufferListToPtrAndLen(CpaBufferList * pBufferList,
++ void **ppDataOut, uint32_t * pLength)
++{
++ *ppDataOut = pBufferList->pBuffers->pData;
++ *pLength = pBufferList->pBuffers->dataLenInBytes;
++}
++
++/* Name : icp_ocfDrvBufferListMemInfo
++ *
++ * Description : This function will set the number of flat buffers in
++ * bufferlist, the size of memory to allocate for the pPrivateMetaData
++ * member of the CpaBufferList.
++ */
++int
++icp_ocfDrvBufferListMemInfo(uint16_t numBuffers,
++ struct icp_drvBuffListInfo *buffListInfo)
++{
++ buffListInfo->numBuffers = numBuffers;
++
++ if (CPA_STATUS_SUCCESS !=
++ cpaCyBufferListGetMetaSize(CPA_INSTANCE_HANDLE_SINGLE,
++ buffListInfo->numBuffers,
++ &(buffListInfo->metaSize))) {
++ EPRINTK("%s() Failed to get buffer list meta size.\n",
++ __FUNCTION__);
++ return ICP_OCF_DRV_STATUS_FAIL;
++ }
++
++ return ICP_OCF_DRV_STATUS_SUCCESS;
++}
++
++/* Name : icp_ocfDrvGetSkBuffFrags
++ *
++ * Description : This function will determine the number of
++ * fragments in a socket buffer(sk_buff).
++ */
++inline uint16_t icp_ocfDrvGetSkBuffFrags(struct sk_buff * pSkb)
++{
++ uint16_t numFrags = 0;
++ struct sk_buff *pCurFrag = NULL;
++ struct skb_shared_info *pShInfo = NULL;
++
++ if (NULL == pSkb)
++ return 0;
++
++ numFrags = 1;
++ if (0 == skb_is_nonlinear(pSkb)) {
++ /* Linear buffer - it's a single skbuff */
++ return numFrags;
++ }
++
++ pShInfo = skb_shinfo(pSkb);
++ if (NULL != pShInfo->frag_list && 0 != pShInfo->nr_frags) {
++ EPRINTK("%s(): Combination of frag_list "
++ "and frags[] array not supported!\n", __FUNCTION__);
++ return 0;
++ } else if (0 != pShInfo->nr_frags) {
++ numFrags += pShInfo->nr_frags;
++ return numFrags;
++ } else if (NULL != pShInfo->frag_list) {
++ for (pCurFrag = pShInfo->frag_list;
++ pCurFrag != NULL; pCurFrag = pCurFrag->next) {
++ numFrags++;
++ }
++ return numFrags;
++ } else {
++ return 0;
++ }
++}
++
++/* Name : icp_ocfDrvFreeFlatBuffer
++ *
++ * Description : This function will deallocate flat buffer.
++ */
++inline void icp_ocfDrvFreeFlatBuffer(CpaFlatBuffer * pFlatBuffer)
++{
++ if (pFlatBuffer != NULL) {
++ memset(pFlatBuffer, 0, sizeof(CpaFlatBuffer));
++ kmem_cache_free(drvFlatBuffer_zone, pFlatBuffer);
++ }
++}
++
++/* Name : icp_ocfDrvAllocMetaData
++ *
++ * Description : This function will allocate memory for the
++ * pPrivateMetaData member of CpaBufferList.
++ */
++inline int
++icp_ocfDrvAllocMetaData(CpaBufferList * pBufferList,
++ const struct icp_drvOpData *pOpData)
++{
++ Cpa32U metaSize = 0;
++
++ if (pBufferList->numBuffers <= ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS){
++ void *pOpDataStartAddr = (void *)pOpData;
++
++ if (0 == defBuffListInfo.metaSize) {
++ pBufferList->pPrivateMetaData = NULL;
++ return ICP_OCF_DRV_STATUS_SUCCESS;
++ }
++ /*
++ * The meta data allocation has been included as part of the
++ * op data. It has been pre-allocated in memory just after the
++ * icp_drvOpData structure.
++ */
++ pBufferList->pPrivateMetaData = pOpDataStartAddr +
++ sizeof(struct icp_drvOpData);
++ } else {
++ if (CPA_STATUS_SUCCESS !=
++ cpaCyBufferListGetMetaSize(CPA_INSTANCE_HANDLE_SINGLE,
++ pBufferList->numBuffers,
++ &metaSize)) {
++ EPRINTK("%s() Failed to get buffer list meta size.\n",
++ __FUNCTION__);
++ return ICP_OCF_DRV_STATUS_FAIL;
++ }
++
++ if (0 == metaSize) {
++ pBufferList->pPrivateMetaData = NULL;
++ return ICP_OCF_DRV_STATUS_SUCCESS;
++ }
++
++ pBufferList->pPrivateMetaData = kmalloc(metaSize, GFP_ATOMIC);
++ }
++ if (NULL == pBufferList->pPrivateMetaData) {
++ EPRINTK("%s() Failed to allocate pPrivateMetaData.\n",
++ __FUNCTION__);
++ return ICP_OCF_DRV_STATUS_FAIL;
++ }
++
++ return ICP_OCF_DRV_STATUS_SUCCESS;
++}
++
++/* Name : icp_ocfDrvFreeMetaData
++ *
++ * Description : This function will deallocate pPrivateMetaData memory.
++ */
++inline void icp_ocfDrvFreeMetaData(CpaBufferList * pBufferList)
++{
++ if (NULL == pBufferList->pPrivateMetaData) {
++ return;
++ }
++
++ /*
++ * Only free the meta data if the BufferList has more than
++ * ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS number of buffers.
++ * Otherwise, the meta data shall be freed when the icp_drvOpData is
++ * freed.
++ */
++ if (ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS < pBufferList->numBuffers){
++ kfree(pBufferList->pPrivateMetaData);
++ }
++}
++
++module_init(icp_ocfDrvInit);
++module_exit(icp_ocfDrvExit);
++MODULE_LICENSE("Dual BSD/GPL");
++MODULE_AUTHOR("Intel");
++MODULE_DESCRIPTION("OCF Driver for Intel Quick Assist crypto acceleration");
+--- /dev/null
++++ b/crypto/ocf/ep80579/icp_ocf.h
+@@ -0,0 +1,363 @@
++/***************************************************************************
++ *
++ * This file is provided under a dual BSD/GPLv2 license. When using or
++ * redistributing this file, you may do so under either license.
++ *
++ * GPL LICENSE SUMMARY
++ *
++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of version 2 of the GNU General Public License as
++ * published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
++ * The full GNU General Public License is included in this distribution
++ * in the file called LICENSE.GPL.
++ *
++ * Contact Information:
++ * Intel Corporation
++ *
++ * BSD LICENSE
++ *
++ * Copyright(c) 2007,2008 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.
++ *
++ *
++ * version: Security.L.1.0.130
++ *
++ ***************************************************************************/
++
++/*
++ * OCF drv driver header file for the Intel ICP processor.
++ */
++
++#ifndef ICP_OCF_H
++#define ICP_OCF_H
++
++#include <linux/crypto.h>
++#include <linux/delay.h>
++#include <linux/skbuff.h>
++
++#include "cryptodev.h"
++#include "uio.h"
++
++#include "cpa.h"
++#include "cpa_cy_im.h"
++#include "cpa_cy_sym.h"
++#include "cpa_cy_rand.h"
++#include "cpa_cy_dh.h"
++#include "cpa_cy_rsa.h"
++#include "cpa_cy_ln.h"
++#include "cpa_cy_common.h"
++#include "cpa_cy_dsa.h"
++
++#define NUM_BITS_IN_BYTE (8)
++#define NUM_BITS_IN_BYTE_MINUS_ONE (NUM_BITS_IN_BYTE -1)
++#define INVALID_DRIVER_ID (-1)
++#define RETURN_RAND_NUM_GEN_FAILED (-1)
++
++/*This is define means only one operation can be chained to another
++(resulting in one chain of two operations)*/
++#define MAX_NUM_OF_CHAINED_OPS (1)
++/*This is the max block cipher initialisation vector*/
++#define MAX_IV_LEN_IN_BYTES (20)
++/*This is used to check whether the OCF to this driver session limit has
++ been disabled*/
++#define NO_OCF_TO_DRV_MAX_SESSIONS (0)
++
++/*OCF values mapped here*/
++#define ICP_SHA1_DIGEST_SIZE_IN_BYTES (SHA1_HASH_LEN)
++#define ICP_SHA256_DIGEST_SIZE_IN_BYTES (SHA2_256_HASH_LEN)
++#define ICP_SHA384_DIGEST_SIZE_IN_BYTES (SHA2_384_HASH_LEN)
++#define ICP_SHA512_DIGEST_SIZE_IN_BYTES (SHA2_512_HASH_LEN)
++#define ICP_MD5_DIGEST_SIZE_IN_BYTES (MD5_HASH_LEN)
++#define ARC4_COUNTER_LEN (ARC4_BLOCK_LEN)
++
++#define OCF_REGISTRATION_STATUS_SUCCESS (0)
++#define OCF_ZERO_FUNCTIONALITY_REGISTERED (0)
++#define ICP_OCF_DRV_NO_CRYPTO_PROCESS_ERROR (0)
++#define ICP_OCF_DRV_STATUS_SUCCESS (0)
++#define ICP_OCF_DRV_STATUS_FAIL (1)
++
++/*Turn on/off debug options*/
++#define ICP_OCF_PRINT_DEBUG_MESSAGES (0)
++#define ICP_OCF_PRINT_KERN_ALERT (1)
++#define ICP_OCF_PRINT_KERN_ERRS (1)
++
++/*DSA Prime Q size in bytes (as defined in the standard) */
++#define DSA_RS_SIGN_PRIMEQ_SIZE_IN_BYTES (20)
++
++/*MACRO DEFINITIONS*/
++
++#define BITS_TO_BYTES(bytes, bits) \
++ bytes = (bits + NUM_BITS_IN_BYTE_MINUS_ONE) / NUM_BITS_IN_BYTE
++
++#define ICP_CACHE_CREATE(cache_ID, cache_name) \
++ kmem_cache_create(cache_ID, sizeof(cache_name),0, \
++ SLAB_HWCACHE_ALIGN, NULL, NULL);
++
++#define ICP_CACHE_NULL_CHECK(slab_zone) \
++{ \
++ if(NULL == slab_zone){ \
++ icp_ocfDrvFreeCaches(); \
++ EPRINTK("%s() line %d: Not enough memory!\n", \
++ __FUNCTION__, __LINE__); \
++ return ENOMEM; \
++ } \
++}
++
++#define ICP_CACHE_DESTROY(slab_zone) \
++{ \
++ if(NULL != slab_zone){ \
++ kmem_cache_destroy(slab_zone); \
++ slab_zone = NULL; \
++ } \
++}
++
++#define ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(alg) \
++{ \
++ if(OCF_REGISTRATION_STATUS_SUCCESS == \
++ crypto_register(icp_ocfDrvDriverId, \
++ alg, \
++ 0, \
++ 0)) { \
++ ocfStatus++; \
++ } \
++}
++
++#define ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(alg) \
++{ \
++ if(OCF_REGISTRATION_STATUS_SUCCESS == \
++ crypto_kregister(icp_ocfDrvDriverId, \
++ alg, \
++ 0)){ \
++ ocfStatus++; \
++ } \
++}
++
++#if ICP_OCF_PRINT_DEBUG_MESSAGES == 1
++#define DPRINTK(args...) \
++{ \
++ printk(args); \
++}
++
++#else //ICP_OCF_PRINT_DEBUG_MESSAGES == 1
++
++#define DPRINTK(args...)
++
++#endif //ICP_OCF_PRINT_DEBUG_MESSAGES == 1
++
++#if ICP_OCF_PRINT_KERN_ALERT == 1
++#define APRINTK(args...) \
++{ \
++ printk(KERN_ALERT args); \
++}
++
++#else //ICP_OCF_PRINT_KERN_ALERT == 1
++
++#define APRINTK(args...)
++
++#endif //ICP_OCF_PRINT_KERN_ALERT == 1
++
++#if ICP_OCF_PRINT_KERN_ERRS == 1
++#define EPRINTK(args...) \
++{ \
++ printk(KERN_ERR args); \
++}
++
++#else //ICP_OCF_PRINT_KERN_ERRS == 1
++
++#define EPRINTK(args...)
++
++#endif //ICP_OCF_PRINT_KERN_ERRS == 1
++
++#define IPRINTK(args...) \
++{ \
++ printk(KERN_INFO args); \
++}
++
++/*END OF MACRO DEFINITIONS*/
++
++typedef enum {
++ ICP_OCF_DRV_ALG_CIPHER = 0,
++ ICP_OCF_DRV_ALG_HASH
++} icp_ocf_drv_alg_type_t;
++
++/* These are all defined in icp_common.c */
++extern atomic_t lac_session_failed_dereg_count;
++extern atomic_t icp_ocfDrvIsExiting;
++extern atomic_t num_ocf_to_drv_registered_sessions;
++
++/*These are use inputs used in icp_sym.c and icp_common.c
++ They are instantiated in icp_common.c*/
++extern int max_sessions;
++
++extern int32_t icp_ocfDrvDriverId;
++extern struct list_head icp_ocfDrvGlobalSymListHead;
++extern struct list_head icp_ocfDrvGlobalSymListHead_FreeMemList;
++extern struct workqueue_struct *icp_ocfDrvFreeLacSessionWorkQ;
++extern spinlock_t icp_ocfDrvSymSessInfoListSpinlock;
++extern rwlock_t icp_kmem_cache_destroy_alloc_lock;
++
++/*Slab zones for symettric functionality, instantiated in icp_common.c*/
++extern struct kmem_cache *drvSessionData_zone;
++extern struct kmem_cache *drvOpData_zone;
++
++/*Slabs zones for asymettric functionality, instantiated in icp_common.c*/
++extern struct kmem_cache *drvDH_zone;
++extern struct kmem_cache *drvLnModExp_zone;
++extern struct kmem_cache *drvRSADecrypt_zone;
++extern struct kmem_cache *drvRSAPrivateKey_zone;
++extern struct kmem_cache *drvDSARSSign_zone;
++extern struct kmem_cache *drvDSARSSignKValue_zone;
++extern struct kmem_cache *drvDSAVerify_zone;
++
++/*Slab zones for flatbuffers and bufferlist*/
++extern struct kmem_cache *drvFlatBuffer_zone;
++
++#define ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS (16)
++
++struct icp_drvBuffListInfo {
++ Cpa16U numBuffers;
++ Cpa32U metaSize;
++ Cpa32U metaOffset;
++ Cpa32U buffListSize;
++};
++extern struct icp_drvBuffListInfo defBuffListInfo;
++
++/*
++* This struct is used to keep a reference to the relevant node in the list
++* of sessionData structs, to the buffer type required by OCF and to the OCF
++* provided crp struct that needs to be returned. All this info is needed in
++* the callback function.
++*
++* IV can sometimes be stored in non-contiguous memory (e.g. skbuff
++* linked/frag list, therefore a contiguous memory space for the IV data must be
++* created and passed to LAC
++*
++*/
++struct icp_drvOpData {
++ CpaCySymOpData lacOpData;
++ uint32_t digestSizeInBytes;
++ struct cryptop *crp;
++ uint8_t bufferType;
++ uint8_t ivData[MAX_IV_LEN_IN_BYTES];
++ uint16_t numBufferListArray;
++ CpaBufferList srcBuffer;
++ CpaFlatBuffer bufferListArray[ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS];
++ CpaBoolean verifyResult;
++};
++/*Values used to derisk chances of performs being called against
++deregistered sessions (for which the slab page has been reclaimed)
++This is not a fix - since page frames are reclaimed from a slab, one cannot
++rely on that memory not being re-used by another app.*/
++typedef enum {
++ ICP_SESSION_INITIALISED = 0x5C5C5C,
++ ICP_SESSION_RUNNING = 0x005C00,
++ ICP_SESSION_DEREGISTERED = 0xC5C5C5
++} usage_derisk;
++
++/*
++This is the OCF<->OCF_DRV session object:
++
++1.The first member is a listNode. These session objects are added to a linked
++ list in order to make it easier to remove them all at session exit time.
++2.The second member is used to give the session object state and derisk the
++ possibility of OCF batch calls executing against a deregistered session (as
++ described above).
++3.The third member is a LAC<->OCF_DRV session handle (initialised with the first
++ perform request for that session).
++4.The fourth is the LAC session context. All the parameters for this structure
++ are only known when the first perform request for this session occurs. That is
++ why the OCF Tolapai Driver only registers a new LAC session at perform time
++*/
++struct icp_drvSessionData {
++ struct list_head listNode;
++ usage_derisk inUse;
++ CpaCySymSessionCtx sessHandle;
++ CpaCySymSessionSetupData lacSessCtx;
++};
++
++/* This struct is required for deferred session
++ deregistration as a work queue function can
++ only have one argument*/
++struct icp_ocfDrvFreeLacSession {
++ CpaCySymSessionCtx sessionToDeregister;
++ struct work_struct work;
++};
++
++int icp_ocfDrvNewSession(device_t dev, uint32_t * sild, struct cryptoini *cri);
++
++int icp_ocfDrvFreeLACSession(device_t dev, uint64_t sid);
++
++int icp_ocfDrvSymProcess(device_t dev, struct cryptop *crp, int hint);
++
++int icp_ocfDrvPkeProcess(device_t dev, struct cryptkop *krp, int hint);
++
++int icp_ocfDrvReadRandom(void *arg, uint32_t * buf, int maxwords);
++
++int icp_ocfDrvDeregRetry(CpaCySymSessionCtx sessionToDeregister);
++
++int icp_ocfDrvSkBuffToBufferList(struct sk_buff *skb,
++ CpaBufferList * bufferList);
++
++int icp_ocfDrvBufferListToSkBuff(CpaBufferList * bufferList,
++ struct sk_buff **skb);
++
++void icp_ocfDrvPtrAndLenToFlatBuffer(void *pData, uint32_t len,
++ CpaFlatBuffer * pFlatBuffer);
++
++void icp_ocfDrvPtrAndLenToBufferList(void *pDataIn, uint32_t length,
++ CpaBufferList * pBufferList);
++
++void icp_ocfDrvBufferListToPtrAndLen(CpaBufferList * pBufferList,
++ void **ppDataOut, uint32_t * pLength);
++
++int icp_ocfDrvBufferListMemInfo(uint16_t numBuffers,
++ struct icp_drvBuffListInfo *buffListInfo);
++
++uint16_t icp_ocfDrvGetSkBuffFrags(struct sk_buff *pSkb);
++
++void icp_ocfDrvFreeFlatBuffer(CpaFlatBuffer * pFlatBuffer);
++
++int icp_ocfDrvAllocMetaData(CpaBufferList * pBufferList,
++ const struct icp_drvOpData *pOpData);
++
++void icp_ocfDrvFreeMetaData(CpaBufferList * pBufferList);
++
++#endif
++/* ICP_OCF_H */
+--- /dev/null
++++ b/crypto/ocf/ep80579/icp_sym.c
+@@ -0,0 +1,1382 @@
++/***************************************************************************
++ *
++ * This file is provided under a dual BSD/GPLv2 license. When using or
++ * redistributing this file, you may do so under either license.
++ *
++ * GPL LICENSE SUMMARY
++ *
++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of version 2 of the GNU General Public License as
++ * published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
++ * The full GNU General Public License is included in this distribution
++ * in the file called LICENSE.GPL.
++ *
++ * Contact Information:
++ * Intel Corporation
++ *
++ * BSD LICENSE
++ *
++ * Copyright(c) 2007,2008 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.
++ *
++ *
++ * version: Security.L.1.0.130
++ *
++ ***************************************************************************/
++/*
++ * An OCF module that uses the API for Intel® QuickAssist Technology to do the
++ * cryptography.
++ *
++ * This driver requires the ICP Access Library that is available from Intel in
++ * order to operate.
++ */
++
++#include "icp_ocf.h"
++
++/*This is the call back function for all symmetric cryptographic processes.
++ Its main functionality is to free driver crypto operation structure and to
++ call back to OCF*/
++static void
++icp_ocfDrvSymCallBack(void *callbackTag,
++ CpaStatus status,
++ const CpaCySymOp operationType,
++ void *pOpData,
++ CpaBufferList * pDstBuffer, CpaBoolean verifyResult);
++
++/*This function is used to extract crypto processing information from the OCF
++ inputs, so as that it may be passed onto LAC*/
++static int
++icp_ocfDrvProcessDataSetup(struct icp_drvOpData *drvOpData,
++ struct cryptodesc *crp_desc);
++
++/*This function checks whether the crp_desc argument pertains to a digest or a
++ cipher operation*/
++static int icp_ocfDrvAlgCheck(struct cryptodesc *crp_desc);
++
++/*This function copies all the passed in session context information and stores
++ it in a LAC context structure*/
++static int
++icp_ocfDrvAlgorithmSetup(struct cryptoini *cri,
++ CpaCySymSessionSetupData * lacSessCtx);
++
++/*This top level function is used to find a pointer to where a digest is
++ stored/needs to be inserted. */
++static uint8_t *icp_ocfDrvDigestPointerFind(struct icp_drvOpData *drvOpData,
++ struct cryptodesc *crp_desc);
++
++/*This function is called when a digest pointer has to be found within a
++ SKBUFF.*/
++static inline uint8_t *icp_ocfDrvSkbuffDigestPointerFind(struct icp_drvOpData
++ *drvOpData,
++ int offsetInBytes,
++ uint32_t
++ digestSizeInBytes);
++
++/*The following two functions are called if the SKBUFF digest pointer is not
++ positioned in the linear portion of the buffer (i.e. it is in a linked SKBUFF
++ or page fragment).*/
++/*This function takes care of the page fragment case.*/
++static inline uint8_t *icp_ocfDrvDigestSkbNRFragsCheck(struct sk_buff *skb,
++ struct skb_shared_info
++ *skb_shared,
++ int offsetInBytes,
++ uint32_t
++ digestSizeInBytes);
++
++/*This function takes care of the linked list case.*/
++static inline uint8_t *icp_ocfDrvDigestSkbFragListCheck(struct sk_buff *skb,
++ struct skb_shared_info
++ *skb_shared,
++ int offsetInBytes,
++ uint32_t
++ digestSizeInBytes);
++
++/*This function is used to free an OCF->OCF_DRV session object*/
++static void icp_ocfDrvFreeOCFSession(struct icp_drvSessionData *sessionData);
++
++/*max IOV buffs supported in a UIO structure*/
++#define NUM_IOV_SUPPORTED (1)
++
++/* Name : icp_ocfDrvSymCallBack
++ *
++ * Description : When this function returns it signifies that the LAC
++ * component has completed the relevant symmetric operation.
++ *
++ * Notes : The callbackTag is a pointer to an icp_drvOpData. This memory
++ * object was passed to LAC for the cryptographic processing and contains all
++ * the relevant information for cleaning up buffer handles etc. so that the
++ * OCF Tolapai Driver portion of this crypto operation can be fully completed.
++ */
++static void
++icp_ocfDrvSymCallBack(void *callbackTag,
++ CpaStatus status,
++ const CpaCySymOp operationType,
++ void *pOpData,
++ CpaBufferList * pDstBuffer, CpaBoolean verifyResult)
++{
++ struct cryptop *crp = NULL;
++ struct icp_drvOpData *temp_drvOpData =
++ (struct icp_drvOpData *)callbackTag;
++ uint64_t *tempBasePtr = NULL;
++ uint32_t tempLen = 0;
++
++ if (NULL == temp_drvOpData) {
++ DPRINTK("%s(): The callback from the LAC component"
++ " has failed due to Null userOpaque data"
++ "(status == %d).\n", __FUNCTION__, status);
++ DPRINTK("%s(): Unable to call OCF back! \n", __FUNCTION__);
++ return;
++ }
++
++ crp = temp_drvOpData->crp;
++ crp->crp_etype = ICP_OCF_DRV_NO_CRYPTO_PROCESS_ERROR;
++
++ if (NULL == pOpData) {
++ DPRINTK("%s(): The callback from the LAC component"
++ " has failed due to Null Symmetric Op data"
++ "(status == %d).\n", __FUNCTION__, status);
++ crp->crp_etype = ECANCELED;
++ crypto_done(crp);
++ return;
++ }
++
++ if (NULL == pDstBuffer) {
++ DPRINTK("%s(): The callback from the LAC component"
++ " has failed due to Null Dst Bufferlist data"
++ "(status == %d).\n", __FUNCTION__, status);
++ crp->crp_etype = ECANCELED;
++ crypto_done(crp);
++ return;
++ }
++
++ if (CPA_STATUS_SUCCESS == status) {
++
++ if (temp_drvOpData->bufferType == CRYPTO_F_SKBUF) {
++ if (ICP_OCF_DRV_STATUS_SUCCESS !=
++ icp_ocfDrvBufferListToSkBuff(pDstBuffer,
++ (struct sk_buff **)
++ &(crp->crp_buf))) {
++ EPRINTK("%s(): BufferList to SkBuff "
++ "conversion error.\n", __FUNCTION__);
++ crp->crp_etype = EPERM;
++ }
++ } else {
++ icp_ocfDrvBufferListToPtrAndLen(pDstBuffer,
++ (void **)&tempBasePtr,
++ &tempLen);
++ crp->crp_olen = (int)tempLen;
++ }
++
++ } else {
++ DPRINTK("%s(): The callback from the LAC component has failed"
++ "(status == %d).\n", __FUNCTION__, status);
++
++ crp->crp_etype = ECANCELED;
++ }
++
++ if (temp_drvOpData->numBufferListArray >
++ ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS) {
++ kfree(pDstBuffer->pBuffers);
++ }
++ icp_ocfDrvFreeMetaData(pDstBuffer);
++ kmem_cache_free(drvOpData_zone, temp_drvOpData);
++
++ /* Invoke the OCF callback function */
++ crypto_done(crp);
++
++ return;
++}
++
++/* Name : icp_ocfDrvNewSession
++ *
++ * Description : This function will create a new Driver<->OCF session
++ *
++ * Notes : LAC session registration happens during the first perform call.
++ * That is the first time we know all information about a given session.
++ */
++int icp_ocfDrvNewSession(device_t dev, uint32_t * sid, struct cryptoini *cri)
++{
++ struct icp_drvSessionData *sessionData = NULL;
++ uint32_t delete_session = 0;
++
++ /* The SID passed in should be our driver ID. We can return the */
++ /* local ID (LID) which is a unique identifier which we can use */
++ /* to differentiate between the encrypt/decrypt LAC session handles */
++ if (NULL == sid) {
++ EPRINTK("%s(): Invalid input parameters - NULL sid.\n",
++ __FUNCTION__);
++ return EINVAL;
++ }
++
++ if (NULL == cri) {
++ EPRINTK("%s(): Invalid input parameters - NULL cryptoini.\n",
++ __FUNCTION__);
++ return EINVAL;
++ }
++
++ if (icp_ocfDrvDriverId != *sid) {
++ EPRINTK("%s(): Invalid input parameters - bad driver ID\n",
++ __FUNCTION__);
++ EPRINTK("\t sid = 0x08%p \n \t cri = 0x08%p \n", sid, cri);
++ return EINVAL;
++ }
++
++ sessionData = kmem_cache_zalloc(drvSessionData_zone, GFP_ATOMIC);
++ if (NULL == sessionData) {
++ DPRINTK("%s():No memory for Session Data\n", __FUNCTION__);
++ return ENOMEM;
++ }
++
++ /*ENTER CRITICAL SECTION */
++ spin_lock_bh(&icp_ocfDrvSymSessInfoListSpinlock);
++ /*put this check in the spinlock so no new sessions can be added to the
++ linked list when we are exiting */
++ if (CPA_TRUE == atomic_read(&icp_ocfDrvIsExiting)) {
++ delete_session++;
++
++ } else if (NO_OCF_TO_DRV_MAX_SESSIONS != max_sessions) {
++ if (atomic_read(&num_ocf_to_drv_registered_sessions) >=
++ (max_sessions -
++ atomic_read(&lac_session_failed_dereg_count))) {
++ delete_session++;
++ } else {
++ atomic_inc(&num_ocf_to_drv_registered_sessions);
++ /* Add to session data linked list */
++ list_add(&(sessionData->listNode),
++ &icp_ocfDrvGlobalSymListHead);
++ }
++
++ } else if (NO_OCF_TO_DRV_MAX_SESSIONS == max_sessions) {
++ list_add(&(sessionData->listNode),
++ &icp_ocfDrvGlobalSymListHead);
++ }
++
++ sessionData->inUse = ICP_SESSION_INITIALISED;
++
++ /*EXIT CRITICAL SECTION */
++ spin_unlock_bh(&icp_ocfDrvSymSessInfoListSpinlock);
++
++ if (delete_session) {
++ DPRINTK("%s():No Session handles available\n", __FUNCTION__);
++ kmem_cache_free(drvSessionData_zone, sessionData);
++ return EPERM;
++ }
++
++ if (ICP_OCF_DRV_STATUS_SUCCESS !=
++ icp_ocfDrvAlgorithmSetup(cri, &(sessionData->lacSessCtx))) {
++ DPRINTK("%s():algorithm not supported\n", __FUNCTION__);
++ icp_ocfDrvFreeOCFSession(sessionData);
++ return EINVAL;
++ }
++
++ if (cri->cri_next) {
++ if (cri->cri_next->cri_next != NULL) {
++ DPRINTK("%s():only two chained algorithms supported\n",
++ __FUNCTION__);
++ icp_ocfDrvFreeOCFSession(sessionData);
++ return EPERM;
++ }
++
++ if (ICP_OCF_DRV_STATUS_SUCCESS !=
++ icp_ocfDrvAlgorithmSetup(cri->cri_next,
++ &(sessionData->lacSessCtx))) {
++ DPRINTK("%s():second algorithm not supported\n",
++ __FUNCTION__);
++ icp_ocfDrvFreeOCFSession(sessionData);
++ return EINVAL;
++ }
++
++ sessionData->lacSessCtx.symOperation =
++ CPA_CY_SYM_OP_ALGORITHM_CHAINING;
++ }
++
++ *sid = (uint32_t) sessionData;
++
++ return ICP_OCF_DRV_STATUS_SUCCESS;
++}
++
++/* Name : icp_ocfDrvAlgorithmSetup
++ *
++ * Description : This function builds the session context data from the
++ * information supplied through OCF. Algorithm chain order and whether the
++ * session is Encrypt/Decrypt can only be found out at perform time however, so
++ * the session is registered with LAC at that time.
++ */
++static int
++icp_ocfDrvAlgorithmSetup(struct cryptoini *cri,
++ CpaCySymSessionSetupData * lacSessCtx)
++{
++
++ lacSessCtx->sessionPriority = CPA_CY_PRIORITY_NORMAL;
++
++ switch (cri->cri_alg) {
++
++ case CRYPTO_NULL_CBC:
++ DPRINTK("%s(): NULL CBC\n", __FUNCTION__);
++ lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER;
++ lacSessCtx->cipherSetupData.cipherAlgorithm =
++ CPA_CY_SYM_CIPHER_NULL;
++ lacSessCtx->cipherSetupData.cipherKeyLenInBytes =
++ cri->cri_klen / NUM_BITS_IN_BYTE;
++ lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key;
++ break;
++
++ case CRYPTO_DES_CBC:
++ DPRINTK("%s(): DES CBC\n", __FUNCTION__);
++ lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER;
++ lacSessCtx->cipherSetupData.cipherAlgorithm =
++ CPA_CY_SYM_CIPHER_DES_CBC;
++ lacSessCtx->cipherSetupData.cipherKeyLenInBytes =
++ cri->cri_klen / NUM_BITS_IN_BYTE;
++ lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key;
++ break;
++
++ case CRYPTO_3DES_CBC:
++ DPRINTK("%s(): 3DES CBC\n", __FUNCTION__);
++ lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER;
++ lacSessCtx->cipherSetupData.cipherAlgorithm =
++ CPA_CY_SYM_CIPHER_3DES_CBC;
++ lacSessCtx->cipherSetupData.cipherKeyLenInBytes =
++ cri->cri_klen / NUM_BITS_IN_BYTE;
++ lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key;
++ break;
++
++ case CRYPTO_AES_CBC:
++ DPRINTK("%s(): AES CBC\n", __FUNCTION__);
++ lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER;
++ lacSessCtx->cipherSetupData.cipherAlgorithm =
++ CPA_CY_SYM_CIPHER_AES_CBC;
++ lacSessCtx->cipherSetupData.cipherKeyLenInBytes =
++ cri->cri_klen / NUM_BITS_IN_BYTE;
++ lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key;
++ break;
++
++ case CRYPTO_ARC4:
++ DPRINTK("%s(): ARC4\n", __FUNCTION__);
++ lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER;
++ lacSessCtx->cipherSetupData.cipherAlgorithm =
++ CPA_CY_SYM_CIPHER_ARC4;
++ lacSessCtx->cipherSetupData.cipherKeyLenInBytes =
++ cri->cri_klen / NUM_BITS_IN_BYTE;
++ lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key;
++ break;
++
++ case CRYPTO_SHA1:
++ DPRINTK("%s(): SHA1\n", __FUNCTION__);
++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
++ lacSessCtx->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_SHA1;
++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN;
++ lacSessCtx->hashSetupData.digestResultLenInBytes =
++ (cri->cri_mlen ?
++ cri->cri_mlen : ICP_SHA1_DIGEST_SIZE_IN_BYTES);
++
++ break;
++
++ case CRYPTO_SHA1_HMAC:
++ DPRINTK("%s(): SHA1_HMAC\n", __FUNCTION__);
++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
++ lacSessCtx->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_SHA1;
++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH;
++ lacSessCtx->hashSetupData.digestResultLenInBytes =
++ (cri->cri_mlen ?
++ cri->cri_mlen : ICP_SHA1_DIGEST_SIZE_IN_BYTES);
++ lacSessCtx->hashSetupData.authModeSetupData.authKey =
++ cri->cri_key;
++ lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes =
++ cri->cri_klen / NUM_BITS_IN_BYTE;
++ lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0;
++
++ break;
++
++ case CRYPTO_SHA2_256:
++ DPRINTK("%s(): SHA256\n", __FUNCTION__);
++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
++ lacSessCtx->hashSetupData.hashAlgorithm =
++ CPA_CY_SYM_HASH_SHA256;
++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN;
++ lacSessCtx->hashSetupData.digestResultLenInBytes =
++ (cri->cri_mlen ?
++ cri->cri_mlen : ICP_SHA256_DIGEST_SIZE_IN_BYTES);
++
++ break;
++
++ case CRYPTO_SHA2_256_HMAC:
++ DPRINTK("%s(): SHA256_HMAC\n", __FUNCTION__);
++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
++ lacSessCtx->hashSetupData.hashAlgorithm =
++ CPA_CY_SYM_HASH_SHA256;
++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH;
++ lacSessCtx->hashSetupData.digestResultLenInBytes =
++ (cri->cri_mlen ?
++ cri->cri_mlen : ICP_SHA256_DIGEST_SIZE_IN_BYTES);
++ lacSessCtx->hashSetupData.authModeSetupData.authKey =
++ cri->cri_key;
++ lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes =
++ cri->cri_klen / NUM_BITS_IN_BYTE;
++ lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0;
++
++ break;
++
++ case CRYPTO_SHA2_384:
++ DPRINTK("%s(): SHA384\n", __FUNCTION__);
++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
++ lacSessCtx->hashSetupData.hashAlgorithm =
++ CPA_CY_SYM_HASH_SHA384;
++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN;
++ lacSessCtx->hashSetupData.digestResultLenInBytes =
++ (cri->cri_mlen ?
++ cri->cri_mlen : ICP_SHA384_DIGEST_SIZE_IN_BYTES);
++
++ break;
++
++ case CRYPTO_SHA2_384_HMAC:
++ DPRINTK("%s(): SHA384_HMAC\n", __FUNCTION__);
++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
++ lacSessCtx->hashSetupData.hashAlgorithm =
++ CPA_CY_SYM_HASH_SHA384;
++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH;
++ lacSessCtx->hashSetupData.digestResultLenInBytes =
++ (cri->cri_mlen ?
++ cri->cri_mlen : ICP_SHA384_DIGEST_SIZE_IN_BYTES);
++ lacSessCtx->hashSetupData.authModeSetupData.authKey =
++ cri->cri_key;
++ lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes =
++ cri->cri_klen / NUM_BITS_IN_BYTE;
++ lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0;
++
++ break;
++
++ case CRYPTO_SHA2_512:
++ DPRINTK("%s(): SHA512\n", __FUNCTION__);
++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
++ lacSessCtx->hashSetupData.hashAlgorithm =
++ CPA_CY_SYM_HASH_SHA512;
++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN;
++ lacSessCtx->hashSetupData.digestResultLenInBytes =
++ (cri->cri_mlen ?
++ cri->cri_mlen : ICP_SHA512_DIGEST_SIZE_IN_BYTES);
++
++ break;
++
++ case CRYPTO_SHA2_512_HMAC:
++ DPRINTK("%s(): SHA512_HMAC\n", __FUNCTION__);
++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
++ lacSessCtx->hashSetupData.hashAlgorithm =
++ CPA_CY_SYM_HASH_SHA512;
++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH;
++ lacSessCtx->hashSetupData.digestResultLenInBytes =
++ (cri->cri_mlen ?
++ cri->cri_mlen : ICP_SHA512_DIGEST_SIZE_IN_BYTES);
++ lacSessCtx->hashSetupData.authModeSetupData.authKey =
++ cri->cri_key;
++ lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes =
++ cri->cri_klen / NUM_BITS_IN_BYTE;
++ lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0;
++
++ break;
++
++ case CRYPTO_MD5:
++ DPRINTK("%s(): MD5\n", __FUNCTION__);
++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
++ lacSessCtx->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_MD5;
++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN;
++ lacSessCtx->hashSetupData.digestResultLenInBytes =
++ (cri->cri_mlen ?
++ cri->cri_mlen : ICP_MD5_DIGEST_SIZE_IN_BYTES);
++
++ break;
++
++ case CRYPTO_MD5_HMAC:
++ DPRINTK("%s(): MD5_HMAC\n", __FUNCTION__);
++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
++ lacSessCtx->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_MD5;
++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH;
++ lacSessCtx->hashSetupData.digestResultLenInBytes =
++ (cri->cri_mlen ?
++ cri->cri_mlen : ICP_MD5_DIGEST_SIZE_IN_BYTES);
++ lacSessCtx->hashSetupData.authModeSetupData.authKey =
++ cri->cri_key;
++ lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes =
++ cri->cri_klen / NUM_BITS_IN_BYTE;
++ lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0;
++
++ break;
++
++ default:
++ DPRINTK("%s(): ALG Setup FAIL\n", __FUNCTION__);
++ return ICP_OCF_DRV_STATUS_FAIL;
++ }
++
++ return ICP_OCF_DRV_STATUS_SUCCESS;
++}
++
++/* Name : icp_ocfDrvFreeOCFSession
++ *
++ * Description : This function deletes all existing Session data representing
++ * the Cryptographic session established between OCF and this driver. This
++ * also includes freeing the memory allocated for the session context. The
++ * session object is also removed from the session linked list.
++ */
++static void icp_ocfDrvFreeOCFSession(struct icp_drvSessionData *sessionData)
++{
++
++ sessionData->inUse = ICP_SESSION_DEREGISTERED;
++
++ /*ENTER CRITICAL SECTION */
++ spin_lock_bh(&icp_ocfDrvSymSessInfoListSpinlock);
++
++ if (CPA_TRUE == atomic_read(&icp_ocfDrvIsExiting)) {
++ /*If the Driver is exiting, allow that process to
++ handle any deletions */
++ /*EXIT CRITICAL SECTION */
++ spin_unlock_bh(&icp_ocfDrvSymSessInfoListSpinlock);
++ return;
++ }
++
++ atomic_dec(&num_ocf_to_drv_registered_sessions);
++
++ list_del(&(sessionData->listNode));
++
++ /*EXIT CRITICAL SECTION */
++ spin_unlock_bh(&icp_ocfDrvSymSessInfoListSpinlock);
++
++ if (NULL != sessionData->sessHandle) {
++ kfree(sessionData->sessHandle);
++ }
++ kmem_cache_free(drvSessionData_zone, sessionData);
++}
++
++/* Name : icp_ocfDrvFreeLACSession
++ *
++ * Description : This attempts to deregister a LAC session. If it fails, the
++ * deregistation retry function is called.
++ */
++int icp_ocfDrvFreeLACSession(device_t dev, uint64_t sid)
++{
++ CpaCySymSessionCtx sessionToDeregister = NULL;
++ struct icp_drvSessionData *sessionData = NULL;
++ CpaStatus lacStatus = CPA_STATUS_SUCCESS;
++ int retval = 0;
++
++ sessionData = (struct icp_drvSessionData *)CRYPTO_SESID2LID(sid);
++ if (NULL == sessionData) {
++ EPRINTK("%s(): OCF Free session called with Null Session ID.\n",
++ __FUNCTION__);
++ return EINVAL;
++ }
++
++ sessionToDeregister = sessionData->sessHandle;
++
++ if (ICP_SESSION_INITIALISED == sessionData->inUse) {
++ DPRINTK("%s() Session not registered with LAC\n", __FUNCTION__);
++ } else if (NULL == sessionData->sessHandle) {
++ EPRINTK
++ ("%s(): OCF Free session called with Null Session Handle.\n",
++ __FUNCTION__);
++ return EINVAL;
++ } else {
++ lacStatus = cpaCySymRemoveSession(CPA_INSTANCE_HANDLE_SINGLE,
++ sessionToDeregister);
++ if (CPA_STATUS_RETRY == lacStatus) {
++ if (ICP_OCF_DRV_STATUS_SUCCESS !=
++ icp_ocfDrvDeregRetry(&sessionToDeregister)) {
++ /* the retry function increments the
++ dereg failed count */
++ DPRINTK("%s(): LAC failed to deregister the "
++ "session. (localSessionId= %p)\n",
++ __FUNCTION__, sessionToDeregister);
++ retval = EPERM;
++ }
++
++ } else if (CPA_STATUS_SUCCESS != lacStatus) {
++ DPRINTK("%s(): LAC failed to deregister the session. "
++ "localSessionId= %p, lacStatus = %d\n",
++ __FUNCTION__, sessionToDeregister, lacStatus);
++ atomic_inc(&lac_session_failed_dereg_count);
++ retval = EPERM;
++ }
++ }
++
++ icp_ocfDrvFreeOCFSession(sessionData);
++ return retval;
++
++}
++
++/* Name : icp_ocfDrvAlgCheck
++ *
++ * Description : This function checks whether the cryptodesc argument pertains
++ * to a sym or hash function
++ */
++static int icp_ocfDrvAlgCheck(struct cryptodesc *crp_desc)
++{
++
++ if (crp_desc->crd_alg == CRYPTO_3DES_CBC ||
++ crp_desc->crd_alg == CRYPTO_AES_CBC ||
++ crp_desc->crd_alg == CRYPTO_DES_CBC ||
++ crp_desc->crd_alg == CRYPTO_NULL_CBC ||
++ crp_desc->crd_alg == CRYPTO_ARC4) {
++ return ICP_OCF_DRV_ALG_CIPHER;
++ }
++
++ return ICP_OCF_DRV_ALG_HASH;
++}
++
++/* Name : icp_ocfDrvSymProcess
++ *
++ * Description : This function will map symmetric functionality calls from OCF
++ * to the LAC API. It will also allocate memory to store the session context.
++ *
++ * Notes: If it is the first perform call for a given session, then a LAC
++ * session is registered. After the session is registered, no checks as
++ * to whether session paramaters have changed (e.g. alg chain order) are
++ * done.
++ */
++int icp_ocfDrvSymProcess(device_t dev, struct cryptop *crp, int hint)
++{
++ struct icp_drvSessionData *sessionData = NULL;
++ struct icp_drvOpData *drvOpData = NULL;
++ CpaStatus lacStatus = CPA_STATUS_SUCCESS;
++ Cpa32U sessionCtxSizeInBytes = 0;
++ uint16_t numBufferListArray = 0;
++
++ if (NULL == crp) {
++ DPRINTK("%s(): Invalid input parameters, cryptop is NULL\n",
++ __FUNCTION__);
++ return EINVAL;
++ }
++
++ if (NULL == crp->crp_desc) {
++ DPRINTK("%s(): Invalid input parameters, no crp_desc attached "
++ "to crp\n", __FUNCTION__);
++ crp->crp_etype = EINVAL;
++ return EINVAL;
++ }
++
++ if (NULL == crp->crp_buf) {
++ DPRINTK("%s(): Invalid input parameters, no buffer attached "
++ "to crp\n", __FUNCTION__);
++ crp->crp_etype = EINVAL;
++ return EINVAL;
++ }
++
++ if (CPA_TRUE == atomic_read(&icp_ocfDrvIsExiting)) {
++ crp->crp_etype = EFAULT;
++ return EFAULT;
++ }
++
++ sessionData = (struct icp_drvSessionData *)
++ (CRYPTO_SESID2LID(crp->crp_sid));
++ if (NULL == sessionData) {
++ DPRINTK("%s(): Invalid input parameters, Null Session ID \n",
++ __FUNCTION__);
++ crp->crp_etype = EINVAL;
++ return EINVAL;
++ }
++
++/*If we get a request against a deregisted session, cancel operation*/
++ if (ICP_SESSION_DEREGISTERED == sessionData->inUse) {
++ DPRINTK("%s(): Session ID %d was deregistered \n",
++ __FUNCTION__, (int)(CRYPTO_SESID2LID(crp->crp_sid)));
++ crp->crp_etype = EFAULT;
++ return EFAULT;
++ }
++
++/*If none of the session states are set, then the session structure was either
++ not initialised properly or we are reading from a freed memory area (possible
++ due to OCF batch mode not removing queued requests against deregistered
++ sessions*/
++ if (ICP_SESSION_INITIALISED != sessionData->inUse &&
++ ICP_SESSION_RUNNING != sessionData->inUse) {
++ DPRINTK("%s(): Session - ID %d - not properly initialised or "
++ "memory freed back to the kernel \n",
++ __FUNCTION__, (int)(CRYPTO_SESID2LID(crp->crp_sid)));
++ crp->crp_etype = EINVAL;
++ return EINVAL;
++ }
++
++ /*For the below checks, remember error checking is already done in LAC.
++ We're not validating inputs subsequent to registration */
++ if (sessionData->inUse == ICP_SESSION_INITIALISED) {
++ DPRINTK("%s(): Initialising session\n", __FUNCTION__);
++
++ if (NULL != crp->crp_desc->crd_next) {
++ if (ICP_OCF_DRV_ALG_CIPHER ==
++ icp_ocfDrvAlgCheck(crp->crp_desc)) {
++
++ sessionData->lacSessCtx.algChainOrder =
++ CPA_CY_SYM_ALG_CHAIN_ORDER_CIPHER_THEN_HASH;
++
++ if (crp->crp_desc->crd_flags & CRD_F_ENCRYPT) {
++ sessionData->lacSessCtx.cipherSetupData.
++ cipherDirection =
++ CPA_CY_SYM_CIPHER_DIRECTION_ENCRYPT;
++ } else {
++ sessionData->lacSessCtx.cipherSetupData.
++ cipherDirection =
++ CPA_CY_SYM_CIPHER_DIRECTION_DECRYPT;
++ }
++ } else {
++ sessionData->lacSessCtx.algChainOrder =
++ CPA_CY_SYM_ALG_CHAIN_ORDER_HASH_THEN_CIPHER;
++
++ if (crp->crp_desc->crd_next->crd_flags &
++ CRD_F_ENCRYPT) {
++ sessionData->lacSessCtx.cipherSetupData.
++ cipherDirection =
++ CPA_CY_SYM_CIPHER_DIRECTION_ENCRYPT;
++ } else {
++ sessionData->lacSessCtx.cipherSetupData.
++ cipherDirection =
++ CPA_CY_SYM_CIPHER_DIRECTION_DECRYPT;
++ }
++
++ }
++
++ } else if (ICP_OCF_DRV_ALG_CIPHER ==
++ icp_ocfDrvAlgCheck(crp->crp_desc)) {
++ if (crp->crp_desc->crd_flags & CRD_F_ENCRYPT) {
++ sessionData->lacSessCtx.cipherSetupData.
++ cipherDirection =
++ CPA_CY_SYM_CIPHER_DIRECTION_ENCRYPT;
++ } else {
++ sessionData->lacSessCtx.cipherSetupData.
++ cipherDirection =
++ CPA_CY_SYM_CIPHER_DIRECTION_DECRYPT;
++ }
++
++ }
++
++ /*No action required for standalone Auth here */
++
++ /* Allocate memory for SymSessionCtx before the Session Registration */
++ lacStatus =
++ cpaCySymSessionCtxGetSize(CPA_INSTANCE_HANDLE_SINGLE,
++ &(sessionData->lacSessCtx),
++ &sessionCtxSizeInBytes);
++ if (CPA_STATUS_SUCCESS != lacStatus) {
++ EPRINTK("%s(): cpaCySymSessionCtxGetSize failed - %d\n",
++ __FUNCTION__, lacStatus);
++ return EINVAL;
++ }
++ sessionData->sessHandle =
++ kmalloc(sessionCtxSizeInBytes, GFP_ATOMIC);
++ if (NULL == sessionData->sessHandle) {
++ EPRINTK
++ ("%s(): Failed to get memory for SymSessionCtx\n",
++ __FUNCTION__);
++ return ENOMEM;
++ }
++
++ lacStatus = cpaCySymInitSession(CPA_INSTANCE_HANDLE_SINGLE,
++ icp_ocfDrvSymCallBack,
++ &(sessionData->lacSessCtx),
++ sessionData->sessHandle);
++
++ if (CPA_STATUS_SUCCESS != lacStatus) {
++ EPRINTK("%s(): cpaCySymInitSession failed -%d \n",
++ __FUNCTION__, lacStatus);
++ return EFAULT;
++ }
++
++ sessionData->inUse = ICP_SESSION_RUNNING;
++ }
++
++ drvOpData = kmem_cache_zalloc(drvOpData_zone, GFP_ATOMIC);
++ if (NULL == drvOpData) {
++ EPRINTK("%s():Failed to get memory for drvOpData\n",
++ __FUNCTION__);
++ crp->crp_etype = ENOMEM;
++ return ENOMEM;
++ }
++
++ drvOpData->lacOpData.pSessionCtx = sessionData->sessHandle;
++ drvOpData->digestSizeInBytes = sessionData->lacSessCtx.hashSetupData.
++ digestResultLenInBytes;
++ drvOpData->crp = crp;
++
++ /* Set the default buffer list array memory allocation */
++ drvOpData->srcBuffer.pBuffers = drvOpData->bufferListArray;
++ drvOpData->numBufferListArray = ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS;
++
++ /*
++ * Allocate buffer list array memory allocation if the
++ * data fragment is more than the default allocation
++ */
++ if (crp->crp_flags & CRYPTO_F_SKBUF) {
++ numBufferListArray = icp_ocfDrvGetSkBuffFrags((struct sk_buff *)
++ crp->crp_buf);
++ if (ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS < numBufferListArray) {
++ DPRINTK("%s() numBufferListArray more than default\n",
++ __FUNCTION__);
++ drvOpData->srcBuffer.pBuffers = NULL;
++ drvOpData->srcBuffer.pBuffers =
++ kmalloc(numBufferListArray *
++ sizeof(CpaFlatBuffer), GFP_ATOMIC);
++ if (NULL == drvOpData->srcBuffer.pBuffers) {
++ EPRINTK("%s() Failed to get memory for "
++ "pBuffers\n", __FUNCTION__);
++ kmem_cache_free(drvOpData_zone, drvOpData);
++ crp->crp_etype = ENOMEM;
++ return ENOMEM;
++ }
++ drvOpData->numBufferListArray = numBufferListArray;
++ }
++ }
++
++ /*
++ * Check the type of buffer structure we got and convert it into
++ * CpaBufferList format.
++ */
++ if (crp->crp_flags & CRYPTO_F_SKBUF) {
++ if (ICP_OCF_DRV_STATUS_SUCCESS !=
++ icp_ocfDrvSkBuffToBufferList((struct sk_buff *)crp->crp_buf,
++ &(drvOpData->srcBuffer))) {
++ EPRINTK("%s():Failed to translate from SK_BUF "
++ "to bufferlist\n", __FUNCTION__);
++ crp->crp_etype = EINVAL;
++ goto err;
++ }
++
++ drvOpData->bufferType = CRYPTO_F_SKBUF;
++ } else if (crp->crp_flags & CRYPTO_F_IOV) {
++ /* OCF only supports IOV of one entry. */
++ if (NUM_IOV_SUPPORTED ==
++ ((struct uio *)(crp->crp_buf))->uio_iovcnt) {
++
++ icp_ocfDrvPtrAndLenToBufferList(((struct uio *)(crp->
++ crp_buf))->
++ uio_iov[0].iov_base,
++ ((struct uio *)(crp->
++ crp_buf))->
++ uio_iov[0].iov_len,
++ &(drvOpData->
++ srcBuffer));
++
++ drvOpData->bufferType = CRYPTO_F_IOV;
++
++ } else {
++ DPRINTK("%s():Unable to handle IOVs with lengths of "
++ "greater than one!\n", __FUNCTION__);
++ crp->crp_etype = EINVAL;
++ goto err;
++ }
++
++ } else {
++ icp_ocfDrvPtrAndLenToBufferList(crp->crp_buf,
++ crp->crp_ilen,
++ &(drvOpData->srcBuffer));
++
++ drvOpData->bufferType = CRYPTO_BUF_CONTIG;
++ }
++
++ if (ICP_OCF_DRV_STATUS_SUCCESS !=
++ icp_ocfDrvProcessDataSetup(drvOpData, drvOpData->crp->crp_desc)) {
++ crp->crp_etype = EINVAL;
++ goto err;
++ }
++
++ if (drvOpData->crp->crp_desc->crd_next != NULL) {
++ if (icp_ocfDrvProcessDataSetup(drvOpData, drvOpData->crp->
++ crp_desc->crd_next)) {
++ crp->crp_etype = EINVAL;
++ goto err;
++ }
++
++ }
++
++ /* Allocate srcBuffer's private meta data */
++ if (ICP_OCF_DRV_STATUS_SUCCESS !=
++ icp_ocfDrvAllocMetaData(&(drvOpData->srcBuffer), drvOpData)) {
++ EPRINTK("%s() icp_ocfDrvAllocMetaData failed\n", __FUNCTION__);
++ memset(&(drvOpData->lacOpData), 0, sizeof(CpaCySymOpData));
++ crp->crp_etype = EINVAL;
++ goto err;
++ }
++
++ /* Perform "in-place" crypto operation */
++ lacStatus = cpaCySymPerformOp(CPA_INSTANCE_HANDLE_SINGLE,
++ (void *)drvOpData,
++ &(drvOpData->lacOpData),
++ &(drvOpData->srcBuffer),
++ &(drvOpData->srcBuffer),
++ &(drvOpData->verifyResult));
++ if (CPA_STATUS_RETRY == lacStatus) {
++ DPRINTK("%s(): cpaCySymPerformOp retry, lacStatus = %d\n",
++ __FUNCTION__, lacStatus);
++ memset(&(drvOpData->lacOpData), 0, sizeof(CpaCySymOpData));
++ crp->crp_etype = EINVAL;
++ goto err;
++ }
++ if (CPA_STATUS_SUCCESS != lacStatus) {
++ EPRINTK("%s(): cpaCySymPerformOp failed, lacStatus = %d\n",
++ __FUNCTION__, lacStatus);
++ memset(&(drvOpData->lacOpData), 0, sizeof(CpaCySymOpData));
++ crp->crp_etype = EINVAL;
++ goto err;
++ }
++
++ return 0; //OCF success status value
++
++ err:
++ if (drvOpData->numBufferListArray > ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS) {
++ kfree(drvOpData->srcBuffer.pBuffers);
++ }
++ icp_ocfDrvFreeMetaData(&(drvOpData->srcBuffer));
++ kmem_cache_free(drvOpData_zone, drvOpData);
++
++ return crp->crp_etype;
++}
++
++/* Name : icp_ocfDrvProcessDataSetup
++ *
++ * Description : This function will setup all the cryptographic operation data
++ * that is required by LAC to execute the operation.
++ */
++static int icp_ocfDrvProcessDataSetup(struct icp_drvOpData *drvOpData,
++ struct cryptodesc *crp_desc)
++{
++ CpaCyRandGenOpData randGenOpData;
++ CpaFlatBuffer randData;
++
++ drvOpData->lacOpData.packetType = CPA_CY_SYM_PACKET_TYPE_FULL;
++
++ /* Convert from the cryptop to the ICP LAC crypto parameters */
++ switch (crp_desc->crd_alg) {
++ case CRYPTO_NULL_CBC:
++ drvOpData->lacOpData.
++ cryptoStartSrcOffsetInBytes = crp_desc->crd_skip;
++ drvOpData->lacOpData.
++ messageLenToCipherInBytes = crp_desc->crd_len;
++ drvOpData->verifyResult = CPA_FALSE;
++ drvOpData->lacOpData.ivLenInBytes = NULL_BLOCK_LEN;
++ break;
++ case CRYPTO_DES_CBC:
++ drvOpData->lacOpData.
++ cryptoStartSrcOffsetInBytes = crp_desc->crd_skip;
++ drvOpData->lacOpData.
++ messageLenToCipherInBytes = crp_desc->crd_len;
++ drvOpData->verifyResult = CPA_FALSE;
++ drvOpData->lacOpData.ivLenInBytes = DES_BLOCK_LEN;
++ break;
++ case CRYPTO_3DES_CBC:
++ drvOpData->lacOpData.
++ cryptoStartSrcOffsetInBytes = crp_desc->crd_skip;
++ drvOpData->lacOpData.
++ messageLenToCipherInBytes = crp_desc->crd_len;
++ drvOpData->verifyResult = CPA_FALSE;
++ drvOpData->lacOpData.ivLenInBytes = DES3_BLOCK_LEN;
++ break;
++ case CRYPTO_ARC4:
++ drvOpData->lacOpData.
++ cryptoStartSrcOffsetInBytes = crp_desc->crd_skip;
++ drvOpData->lacOpData.
++ messageLenToCipherInBytes = crp_desc->crd_len;
++ drvOpData->verifyResult = CPA_FALSE;
++ drvOpData->lacOpData.ivLenInBytes = ARC4_COUNTER_LEN;
++ break;
++ case CRYPTO_AES_CBC:
++ drvOpData->lacOpData.
++ cryptoStartSrcOffsetInBytes = crp_desc->crd_skip;
++ drvOpData->lacOpData.
++ messageLenToCipherInBytes = crp_desc->crd_len;
++ drvOpData->verifyResult = CPA_FALSE;
++ drvOpData->lacOpData.ivLenInBytes = RIJNDAEL128_BLOCK_LEN;
++ break;
++ case CRYPTO_SHA1:
++ case CRYPTO_SHA1_HMAC:
++ case CRYPTO_SHA2_256:
++ case CRYPTO_SHA2_256_HMAC:
++ case CRYPTO_SHA2_384:
++ case CRYPTO_SHA2_384_HMAC:
++ case CRYPTO_SHA2_512:
++ case CRYPTO_SHA2_512_HMAC:
++ case CRYPTO_MD5:
++ case CRYPTO_MD5_HMAC:
++ drvOpData->lacOpData.
++ hashStartSrcOffsetInBytes = crp_desc->crd_skip;
++ drvOpData->lacOpData.
++ messageLenToHashInBytes = crp_desc->crd_len;
++ drvOpData->lacOpData.
++ pDigestResult =
++ icp_ocfDrvDigestPointerFind(drvOpData, crp_desc);
++
++ if (NULL == drvOpData->lacOpData.pDigestResult) {
++ DPRINTK("%s(): ERROR - could not calculate "
++ "Digest Result memory address\n", __FUNCTION__);
++ return ICP_OCF_DRV_STATUS_FAIL;
++ }
++
++ drvOpData->lacOpData.digestVerify = CPA_FALSE;
++ break;
++ default:
++ DPRINTK("%s(): Crypto process error - algorithm not "
++ "found \n", __FUNCTION__);
++ return ICP_OCF_DRV_STATUS_FAIL;
++ }
++
++ /* Figure out what the IV is supposed to be */
++ if ((crp_desc->crd_alg == CRYPTO_DES_CBC) ||
++ (crp_desc->crd_alg == CRYPTO_3DES_CBC) ||
++ (crp_desc->crd_alg == CRYPTO_AES_CBC)) {
++ /*ARC4 doesn't use an IV */
++ if (crp_desc->crd_flags & CRD_F_IV_EXPLICIT) {
++ /* Explicit IV provided to OCF */
++ drvOpData->lacOpData.pIv = crp_desc->crd_iv;
++ } else {
++ /* IV is not explicitly provided to OCF */
++
++ /* Point the LAC OP Data IV pointer to our allocated
++ storage location for this session. */
++ drvOpData->lacOpData.pIv = drvOpData->ivData;
++
++ if ((crp_desc->crd_flags & CRD_F_ENCRYPT) &&
++ ((crp_desc->crd_flags & CRD_F_IV_PRESENT) == 0)) {
++
++ /* Encrypting - need to create IV */
++ randGenOpData.generateBits = CPA_TRUE;
++ randGenOpData.lenInBytes = MAX_IV_LEN_IN_BYTES;
++
++ icp_ocfDrvPtrAndLenToFlatBuffer((Cpa8U *)
++ drvOpData->
++ ivData,
++ MAX_IV_LEN_IN_BYTES,
++ &randData);
++
++ if (CPA_STATUS_SUCCESS !=
++ cpaCyRandGen(CPA_INSTANCE_HANDLE_SINGLE,
++ NULL, NULL,
++ &randGenOpData, &randData)) {
++ DPRINTK("%s(): ERROR - Failed to"
++ " generate"
++ " Initialisation Vector\n",
++ __FUNCTION__);
++ return ICP_OCF_DRV_STATUS_FAIL;
++ }
++
++ crypto_copyback(drvOpData->crp->
++ crp_flags,
++ drvOpData->crp->crp_buf,
++ crp_desc->crd_inject,
++ drvOpData->lacOpData.
++ ivLenInBytes,
++ (caddr_t) (drvOpData->lacOpData.
++ pIv));
++ } else {
++ /* Reading IV from buffer */
++ crypto_copydata(drvOpData->crp->
++ crp_flags,
++ drvOpData->crp->crp_buf,
++ crp_desc->crd_inject,
++ drvOpData->lacOpData.
++ ivLenInBytes,
++ (caddr_t) (drvOpData->lacOpData.
++ pIv));
++ }
++
++ }
++
++ }
++
++ return ICP_OCF_DRV_STATUS_SUCCESS;
++}
++
++/* Name : icp_ocfDrvDigestPointerFind
++ *
++ * Description : This function is used to find the memory address of where the
++ * digest information shall be stored in. Input buffer types are an skbuff, iov
++ * or flat buffer. The address is found using the buffer data start address and
++ * an offset.
++ *
++ * Note: In the case of a linux skbuff, the digest address may exist within
++ * a memory space linked to from the start buffer. These linked memory spaces
++ * must be traversed by the data length offset in order to find the digest start
++ * address. Whether there is enough space for the digest must also be checked.
++ */
++
++static uint8_t *icp_ocfDrvDigestPointerFind(struct icp_drvOpData *drvOpData,
++ struct cryptodesc *crp_desc)
++{
++
++ int offsetInBytes = crp_desc->crd_inject;
++ uint32_t digestSizeInBytes = drvOpData->digestSizeInBytes;
++ uint8_t *flat_buffer_base = NULL;
++ int flat_buffer_length = 0;
++ struct sk_buff *skb;
++
++ if (drvOpData->crp->crp_flags & CRYPTO_F_SKBUF) {
++ /*check if enough overall space to store hash */
++ skb = (struct sk_buff *)(drvOpData->crp->crp_buf);
++
++ if (skb->len < (offsetInBytes + digestSizeInBytes)) {
++ DPRINTK("%s() Not enough space for Digest"
++ " payload after the offset (%d), "
++ "digest size (%d) \n", __FUNCTION__,
++ offsetInBytes, digestSizeInBytes);
++ return NULL;
++ }
++
++ return icp_ocfDrvSkbuffDigestPointerFind(drvOpData,
++ offsetInBytes,
++ digestSizeInBytes);
++
++ } else {
++ /* IOV or flat buffer */
++ if (drvOpData->crp->crp_flags & CRYPTO_F_IOV) {
++ /*single IOV check has already been done */
++ flat_buffer_base = ((struct uio *)
++ (drvOpData->crp->crp_buf))->
++ uio_iov[0].iov_base;
++ flat_buffer_length = ((struct uio *)
++ (drvOpData->crp->crp_buf))->
++ uio_iov[0].iov_len;
++ } else {
++ flat_buffer_base = (uint8_t *) drvOpData->crp->crp_buf;
++ flat_buffer_length = drvOpData->crp->crp_ilen;
++ }
++
++ if (flat_buffer_length < (offsetInBytes + digestSizeInBytes)) {
++ DPRINTK("%s() Not enough space for Digest "
++ "(IOV/Flat Buffer) \n", __FUNCTION__);
++ return NULL;
++ } else {
++ return (uint8_t *) (flat_buffer_base + offsetInBytes);
++ }
++ }
++ DPRINTK("%s() Should not reach this point\n", __FUNCTION__);
++ return NULL;
++}
++
++/* Name : icp_ocfDrvSkbuffDigestPointerFind
++ *
++ * Description : This function is used by icp_ocfDrvDigestPointerFind to process
++ * the non-linear portion of the skbuff if the fragmentation type is a linked
++ * list (frag_list is not NULL in the skb_shared_info structure)
++ */
++static inline uint8_t *icp_ocfDrvSkbuffDigestPointerFind(struct icp_drvOpData
++ *drvOpData,
++ int offsetInBytes,
++ uint32_t
++ digestSizeInBytes)
++{
++
++ struct sk_buff *skb = NULL;
++ struct skb_shared_info *skb_shared = NULL;
++
++ uint32_t skbuffisnonlinear = 0;
++
++ uint32_t skbheadlen = 0;
++
++ skb = (struct sk_buff *)(drvOpData->crp->crp_buf);
++ skbuffisnonlinear = skb_is_nonlinear(skb);
++
++ skbheadlen = skb_headlen(skb);
++
++ /*Linear skb checks */
++ if (skbheadlen > offsetInBytes) {
++
++ if (skbheadlen >= (offsetInBytes + digestSizeInBytes)) {
++ return (uint8_t *) (skb->data + offsetInBytes);
++ } else {
++ DPRINTK("%s() Auth payload stretches "
++ "accross contiguous memory\n", __FUNCTION__);
++ return NULL;
++ }
++ } else {
++ if (skbuffisnonlinear) {
++ offsetInBytes -= skbheadlen;
++ } else {
++ DPRINTK("%s() Offset outside of buffer boundaries\n",
++ __FUNCTION__);
++ return NULL;
++ }
++ }
++
++ /*Non Linear checks */
++ skb_shared = (struct skb_shared_info *)(skb->end);
++ if (unlikely(NULL == skb_shared)) {
++ DPRINTK("%s() skbuff shared info stucture is NULL! \n",
++ __FUNCTION__);
++ return NULL;
++ } else if ((0 != skb_shared->nr_frags) &&
++ (skb_shared->frag_list != NULL)) {
++ DPRINTK("%s() skbuff nr_frags AND "
++ "frag_list not supported \n", __FUNCTION__);
++ return NULL;
++ }
++
++ /*TCP segmentation more likely than IP fragmentation */
++ if (likely(0 != skb_shared->nr_frags)) {
++ return icp_ocfDrvDigestSkbNRFragsCheck(skb, skb_shared,
++ offsetInBytes,
++ digestSizeInBytes);
++ } else if (skb_shared->frag_list != NULL) {
++ return icp_ocfDrvDigestSkbFragListCheck(skb, skb_shared,
++ offsetInBytes,
++ digestSizeInBytes);
++ } else {
++ DPRINTK("%s() skbuff is non-linear but does not show any "
++ "linked data\n", __FUNCTION__);
++ return NULL;
++ }
++
++}
++
++/* Name : icp_ocfDrvDigestSkbNRFragsCheck
++ *
++ * Description : This function is used by icp_ocfDrvSkbuffDigestPointerFind to
++ * process the non-linear portion of the skbuff, if the fragmentation type is
++ * page fragments
++ */
++static inline uint8_t *icp_ocfDrvDigestSkbNRFragsCheck(struct sk_buff *skb,
++ struct skb_shared_info
++ *skb_shared,
++ int offsetInBytes,
++ uint32_t
++ digestSizeInBytes)
++{
++ int i = 0;
++ /*nr_frags starts from 1 */
++ if (MAX_SKB_FRAGS < skb_shared->nr_frags) {
++ DPRINTK("%s error processing skbuff "
++ "page frame -- MAX FRAGS exceeded \n", __FUNCTION__);
++ return NULL;
++ }
++
++ for (i = 0; i < skb_shared->nr_frags; i++) {
++
++ if (offsetInBytes >= skb_shared->frags[i].size) {
++ /*offset still greater than data position */
++ offsetInBytes -= skb_shared->frags[i].size;
++ } else {
++ /* found the page containing start of hash */
++
++ if (NULL == skb_shared->frags[i].page) {
++ DPRINTK("%s() Linked page is NULL!\n",
++ __FUNCTION__);
++ return NULL;
++ }
++
++ if (offsetInBytes + digestSizeInBytes >
++ skb_shared->frags[i].size) {
++ DPRINTK("%s() Auth payload stretches accross "
++ "contiguous memory\n", __FUNCTION__);
++ return NULL;
++ } else {
++ return (uint8_t *) (skb_shared->frags[i].page +
++ skb_shared->frags[i].
++ page_offset +
++ offsetInBytes);
++ }
++ }
++ /*only possible if internal page sizes are set wrong */
++ if (offsetInBytes < 0) {
++ DPRINTK("%s error processing skbuff page frame "
++ "-- offset calculation \n", __FUNCTION__);
++ return NULL;
++ }
++ }
++ /*only possible if internal page sizes are set wrong */
++ DPRINTK("%s error processing skbuff page frame "
++ "-- ran out of page fragments, remaining offset = %d \n",
++ __FUNCTION__, offsetInBytes);
++ return NULL;
++
++}
++
++/* Name : icp_ocfDrvDigestSkbFragListCheck
++ *
++ * Description : This function is used by icp_ocfDrvSkbuffDigestPointerFind to
++ * process the non-linear portion of the skbuff, if the fragmentation type is
++ * a linked list
++ *
++ */
++static inline uint8_t *icp_ocfDrvDigestSkbFragListCheck(struct sk_buff *skb,
++ struct skb_shared_info
++ *skb_shared,
++ int offsetInBytes,
++ uint32_t
++ digestSizeInBytes)
++{
++
++ struct sk_buff *skb_list = skb_shared->frag_list;
++ /*check added for readability */
++ if (NULL == skb_list) {
++ DPRINTK("%s error processing skbuff "
++ "-- no more list! \n", __FUNCTION__);
++ return NULL;
++ }
++
++ for (; skb_list; skb_list = skb_list->next) {
++ if (NULL == skb_list) {
++ DPRINTK("%s error processing skbuff "
++ "-- no more list! \n", __FUNCTION__);
++ return NULL;
++ }
++
++ if (offsetInBytes >= skb_list->len) {
++ offsetInBytes -= skb_list->len;
++
++ } else {
++ if (offsetInBytes + digestSizeInBytes > skb_list->len) {
++ DPRINTK("%s() Auth payload stretches accross "
++ "contiguous memory\n", __FUNCTION__);
++ return NULL;
++ } else {
++ return (uint8_t *)
++ (skb_list->data + offsetInBytes);
++ }
++
++ }
++
++ /*This check is only needed if internal skb_list length values
++ are set wrong. */
++ if (0 > offsetInBytes) {
++ DPRINTK("%s() error processing skbuff object -- offset "
++ "calculation \n", __FUNCTION__);
++ return NULL;
++ }
++
++ }
++
++ /*catch all for unusual for-loop exit.
++ This code should never be reached */
++ DPRINTK("%s() Catch-All hit! Process error.\n", __FUNCTION__);
++ return NULL;
++}
+--- /dev/null
+++ b/crypto/ocf/pasemi/pasemi.c
@@ -0,0 +1,1009 @@
+/*
diff --git a/target/linux/generic-2.6/patches-2.6.25/951-ocf-scatterlist-inc.patch b/target/linux/generic-2.6/patches-2.6.25/972-ocf_compile_fix.patch
index 578558d0b7..a3fa226814 100644
--- a/target/linux/generic-2.6/patches-2.6.25/951-ocf-scatterlist-inc.patch
+++ b/target/linux/generic-2.6/patches-2.6.25/972-ocf_compile_fix.patch
@@ -1,9 +1,10 @@
--- a/crypto/ocf/cryptosoft.c
+++ b/crypto/ocf/cryptosoft.c
-@@ -48,6 +48,7 @@
+@@ -47,7 +47,7 @@
+ #include <linux/mm.h>
#include <linux/skbuff.h>
#include <linux/random.h>
- #include <asm/scatterlist.h>
+-#include <asm/scatterlist.h>
+#include <linux/scatterlist.h>
#include <cryptodev.h>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-04 16:38:59 +0000