diff options
Diffstat (limited to 'target/linux/generic-2.6/files/crypto/ocf/ep80579/icp_ocf.h')
| -rw-r--r-- | target/linux/generic-2.6/files/crypto/ocf/ep80579/icp_ocf.h | 337 |
1 files changed, 175 insertions, 162 deletions
diff --git a/target/linux/generic-2.6/files/crypto/ocf/ep80579/icp_ocf.h b/target/linux/generic-2.6/files/crypto/ocf/ep80579/icp_ocf.h index dff0a8b7d4..d9dde87402 100644 --- a/target/linux/generic-2.6/files/crypto/ocf/ep80579/icp_ocf.h +++ b/target/linux/generic-2.6/files/crypto/ocf/ep80579/icp_ocf.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. + * Copyright(c) 2007,2008,2009 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 @@ -27,7 +27,7 @@ * * BSD LICENSE * - * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. + * Copyright(c) 2007,2008,2009 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -57,42 +57,34 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * - * version: Security.L.1.0.130 + * version: Security.L.1.0.2-229 * ***************************************************************************/ /* - * OCF drv driver header file for the Intel ICP processor. + * OCF driver header file for the Intel ICP processor. */ -#ifndef ICP_OCF_H -#define ICP_OCF_H +#ifndef ICP_OCF_H_ +#define ICP_OCF_H_ -#include <linux/crypto.h> -#include <linux/delay.h> -#include <linux/skbuff.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> -#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" +#include "icp_os.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 @@ -118,61 +110,10 @@ #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); \ + ICP_IPRINTK(args); \ } #else //ICP_OCF_PRINT_DEBUG_MESSAGES == 1 @@ -184,7 +125,7 @@ #if ICP_OCF_PRINT_KERN_ALERT == 1 #define APRINTK(args...) \ { \ - printk(KERN_ALERT args); \ + ICP_APRINTK(args); \ } #else //ICP_OCF_PRINT_KERN_ALERT == 1 @@ -196,7 +137,7 @@ #if ICP_OCF_PRINT_KERN_ERRS == 1 #define EPRINTK(args...) \ { \ - printk(KERN_ERR args); \ + ICP_EPRINTK(args); \ } #else //ICP_OCF_PRINT_KERN_ERRS == 1 @@ -207,47 +148,110 @@ #define IPRINTK(args...) \ { \ - printk(KERN_INFO args); \ + ICP_IPRINTK(args); \ } -/*END OF MACRO DEFINITIONS*/ +/*DSA Prime Q size in bytes (as defined in the standard) */ +#define DSA_RS_SIGN_PRIMEQ_SIZE_IN_BYTES (20) + +#define BITS_TO_BYTES(bytes, bits) \ + bytes = (bits + NUM_BITS_IN_BYTE_MINUS_ONE) / NUM_BITS_IN_BYTE 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; +typedef ICP_LIST_HEAD(icp_drvSessionListHead_s, + icp_drvSessionData) icp_drvSessionListHead_t; -/*These are use inputs used in icp_sym.c and icp_common.c - They are instantiated in icp_common.c*/ -extern int max_sessions; +/*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 struct is required for deferred session + deregistration as a work queue function can + only have one argument*/ +struct icp_ocfDrvFreeLacSession { + CpaCySymSessionCtx sessionToDeregister; + icp_workstruct work; +}; + +/* +This is the OCF<->OCF_DRV session object: + +1.listNode + 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.inUse + 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.sessHandle + The third member is a LAC<->OCF_DRV session handle (initialised with the first + perform request for that session). + +4.lacSessCtx + 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 EP80579 Driver only registers a new LAC session at perform time +*/ +struct icp_drvSessionData { + ICP_LIST_ENTRY(icp_drvSessionData) listNode; + usage_derisk inUse; + CpaCySymSessionCtx sessHandle; + CpaCySymSessionSetupData lacSessCtx; +}; + +/* These are all defined in icp_common.c */ +extern icp_atomic_t lac_session_failed_dereg_count; +extern icp_atomic_t icp_ocfDrvIsExiting; +extern icp_atomic_t num_ocf_to_drv_registered_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; + +extern icp_drvSessionListHead_t icp_ocfDrvGlobalSymListHead; +extern icp_drvSessionListHead_t icp_ocfDrvGlobalSymListHead_FreeMemList; +extern icp_workqueue *icp_ocfDrvFreeLacSessionWorkQ; +extern icp_spinlock_t icp_ocfDrvSymSessInfoListSpinlock; /*Slab zones for symettric functionality, instantiated in icp_common.c*/ -extern struct kmem_cache *drvSessionData_zone; -extern struct kmem_cache *drvOpData_zone; +extern icp_kmem_cache drvSessionData_zone; +extern icp_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; +extern icp_kmem_cache drvDH_zone; +extern icp_kmem_cache drvLnModExp_zone; +extern icp_kmem_cache drvRSADecrypt_zone; +extern icp_kmem_cache drvRSAPrivateKey_zone; +extern icp_kmem_cache drvDSARSSign_zone; +extern icp_kmem_cache drvDSARSSignKValue_zone; +extern icp_kmem_cache drvDSAVerify_zone; + +/* Module parameters defined in icp_cpmmon.c*/ + +/* Module parameters - gives the number of times LAC deregistration shall be + re-tried */ +extern int num_dereg_retries; + +/* Module parameter - gives the delay time in jiffies before a LAC session + shall be attempted to be deregistered again */ +extern int dereg_retry_delay_in_jiffies; + +/* Module parameter - gives the maximum number of sessions possible between + OCF and the OCF EP80579 Driver. If set to zero, there is no limit.*/ +extern int max_sessions; /*Slab zones for flatbuffers and bufferlist*/ -extern struct kmem_cache *drvFlatBuffer_zone; +extern icp_kmem_cache drvFlatBuffer_zone; #define ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS (16) @@ -257,19 +261,13 @@ struct icp_drvBuffListInfo { 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 -* -*/ +/* 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.*/ struct icp_drvOpData { CpaCySymOpData lacOpData; uint32_t digestSizeInBytes; @@ -281,83 +279,98 @@ struct icp_drvOpData { 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; -}; +/* Create a new session between OCF and this driver*/ +int icp_ocfDrvNewSession(icp_device_t dev, uint32_t * sild, + struct cryptoini *cri); -int icp_ocfDrvNewSession(device_t dev, uint32_t * sild, struct cryptoini *cri); +/* Free a session between this driver and the Quick Assist Framework*/ +int icp_ocfDrvFreeLACSession(icp_device_t dev, uint64_t sid); -int icp_ocfDrvFreeLACSession(device_t dev, uint64_t sid); +/* Defer freeing a Quick Assist session*/ +void icp_ocfDrvDeferedFreeLacSessionProcess(void *arg); -int icp_ocfDrvSymProcess(device_t dev, struct cryptop *crp, int hint); +/* Process OCF cryptographic request for a symmetric algorithm*/ +int icp_ocfDrvSymProcess(icp_device_t dev, struct cryptop *crp, int hint); -int icp_ocfDrvPkeProcess(device_t dev, struct cryptkop *krp, int hint); +/* Process OCF cryptographic request for an asymmetric algorithm*/ +int icp_ocfDrvPkeProcess(icp_device_t dev, struct cryptkop *krp, int hint); +/* Populate a buffer with random data*/ int icp_ocfDrvReadRandom(void *arg, uint32_t * buf, int maxwords); +/* Retry Quick Assist session deregistration*/ int icp_ocfDrvDeregRetry(CpaCySymSessionCtx sessionToDeregister); -int icp_ocfDrvSkBuffToBufferList(struct sk_buff *skb, - CpaBufferList * bufferList); +/* Convert an OS scatter gather list to a CPA buffer list*/ +int icp_ocfDrvPacketBuffToBufferList(icp_packet_buffer_t * pPacketBuffer, + CpaBufferList * bufferList); + +/* Convert a CPA buffer list to an OS scatter gather list*/ +int icp_ocfDrvBufferListToPacketBuff(CpaBufferList * bufferList, + icp_packet_buffer_t ** pPacketBuffer); -int icp_ocfDrvBufferListToSkBuff(CpaBufferList * bufferList, - struct sk_buff **skb); +/* Get the number of buffers in an OS scatter gather list*/ +uint16_t icp_ocfDrvGetPacketBuffFrags(icp_packet_buffer_t * pPacketBuffer); +/* Convert a single OS buffer to a CPA Flat Buffer*/ +void icp_ocfDrvSinglePacketBuffToFlatBuffer(icp_packet_buffer_t * pPacketBuffer, + CpaFlatBuffer * pFlatBuffer); + +/* Add pointer and length to a CPA Flat Buffer structure*/ void icp_ocfDrvPtrAndLenToFlatBuffer(void *pData, uint32_t len, CpaFlatBuffer * pFlatBuffer); +/* Convert pointer and length values to a CPA buffer list*/ void icp_ocfDrvPtrAndLenToBufferList(void *pDataIn, uint32_t length, CpaBufferList * pBufferList); +/* Convert a CPA buffer list to pointer and length values*/ void icp_ocfDrvBufferListToPtrAndLen(CpaBufferList * pBufferList, void **ppDataOut, uint32_t * pLength); +/* Set the number of flat buffers in bufferlist and the size of memory + to allocate for the pPrivateMetaData member of the CpaBufferList.*/ int icp_ocfDrvBufferListMemInfo(uint16_t numBuffers, struct icp_drvBuffListInfo *buffListInfo); -uint16_t icp_ocfDrvGetSkBuffFrags(struct sk_buff *pSkb); +/* Find pointer position of the digest within an OS scatter gather list*/ +uint8_t *icp_ocfDrvPacketBufferDigestPointerFind(struct icp_drvOpData + *drvOpData, + int offsetInBytes, + uint32_t digestSizeInBytes); + +/*This top level function is used to find a pointer to where a digest is + stored/needs to be inserted. */ +uint8_t *icp_ocfDrvDigestPointerFind(struct icp_drvOpData *drvOpData, + struct cryptodesc *crp_desc); +/* Free a CPA flat buffer*/ void icp_ocfDrvFreeFlatBuffer(CpaFlatBuffer * pFlatBuffer); -int icp_ocfDrvAllocMetaData(CpaBufferList * pBufferList, - const struct icp_drvOpData *pOpData); +/* This function will allocate memory for the pPrivateMetaData + member of CpaBufferList. */ +int icp_ocfDrvAllocMetaData(CpaBufferList * pBufferList, + struct icp_drvOpData *pOpData); +/* Free data allocated for the pPrivateMetaData + member of CpaBufferList.*/ void icp_ocfDrvFreeMetaData(CpaBufferList * pBufferList); +#define ICP_CACHE_CREATE(cache_ID, cache_name) \ + icp_kmem_cache_create(cache_ID, sizeof(cache_name),ICP_KERNEL_CACHE_ALIGN,\ + ICP_KERNEL_CACHE_NOINIT) + +#define ICP_CACHE_FREE(args...) \ + icp_kmem_cache_free (args) + +#define ICP_CACHE_DESTROY(slab_zone)\ +{\ + if(NULL != slab_zone){\ + icp_kmem_cache_destroy(slab_zone);\ + slab_zone = NULL;\ + }\ +} + #endif -/* ICP_OCF_H */ +/* ICP_OCF_H_ */ |