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/*
* Freescale SEC data structures for integration with ocf-linux
*
* Copyright (c) 2006 Freescale Semiconductor, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
/*
* paired descriptor and associated crypto operation
*/
struct desc_cryptop_pair {
struct talitos_desc cf_desc; /* descriptor ptr */
struct cryptop *cf_crp; /* cryptop ptr */
};
/*
* Holds data specific to a single talitos device.
*/
struct talitos_softc {
softc_device_decl sc_cdev;
struct platform_device *sc_dev; /* device backpointer */
ocf_iomem_t sc_base_addr;
int sc_irq;
int sc_num; /* if we have multiple chips */
int32_t sc_cid; /* crypto tag */
u64 sc_chiprev; /* major/minor chip revision */
int sc_nsessions;
struct talitos_session *sc_sessions;
int sc_num_channels;/* number of crypto channels */
int sc_chfifo_len; /* channel fetch fifo len */
int sc_exec_units; /* execution units mask */
int sc_desc_types; /* descriptor types mask */
/*
* mutual exclusion for intra-channel resources, e.g. fetch fifos
* the last entry is a meta-channel lock used by the channel scheduler
*/
spinlock_t *sc_chnfifolock;
/* sc_chnlastalgo contains last algorithm for that channel */
int *sc_chnlastalg;
/* sc_chnfifo holds pending descriptor--crypto operation pairs */
struct desc_cryptop_pair **sc_chnfifo;
};
struct talitos_session {
u_int32_t ses_used;
u_int32_t ses_klen; /* key length in bits */
u_int32_t ses_key[8]; /* DES/3DES/AES key */
u_int32_t ses_hmac[5]; /* hmac inner state */
u_int32_t ses_hmac_len; /* hmac length */
u_int32_t ses_iv[4]; /* DES/3DES/AES iv */
u_int32_t ses_mlen; /* desired hash result len (12=ipsec or 16) */
};
#define TALITOS_SESSION(sid) ((sid) & 0x0fffffff)
#define TALITOS_SID(crd, sesn) (((crd) << 28) | ((sesn) & 0x0fffffff))
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