77 lines
3.1 KiB
C
77 lines
3.1 KiB
C
/*
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* Freescale SEC data structures for integration with ocf-linux
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*
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* Copyright (c) 2006 Freescale Semiconductor, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* paired descriptor and associated crypto operation
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*/
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struct desc_cryptop_pair {
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struct talitos_desc cf_desc; /* descriptor ptr */
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struct cryptop *cf_crp; /* cryptop ptr */
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};
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/*
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* Holds data specific to a single talitos device.
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*/
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struct talitos_softc {
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softc_device_decl sc_cdev;
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struct platform_device *sc_dev; /* device backpointer */
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ocf_iomem_t sc_base_addr;
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int sc_irq;
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int sc_num; /* if we have multiple chips */
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int32_t sc_cid; /* crypto tag */
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u64 sc_chiprev; /* major/minor chip revision */
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int sc_nsessions;
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struct talitos_session *sc_sessions;
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int sc_num_channels;/* number of crypto channels */
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int sc_chfifo_len; /* channel fetch fifo len */
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int sc_exec_units; /* execution units mask */
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int sc_desc_types; /* descriptor types mask */
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/*
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* mutual exclusion for intra-channel resources, e.g. fetch fifos
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* the last entry is a meta-channel lock used by the channel scheduler
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*/
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spinlock_t *sc_chnfifolock;
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/* sc_chnlastalgo contains last algorithm for that channel */
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int *sc_chnlastalg;
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/* sc_chnfifo holds pending descriptor--crypto operation pairs */
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struct desc_cryptop_pair **sc_chnfifo;
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};
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struct talitos_session {
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u_int32_t ses_used;
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u_int32_t ses_klen; /* key length in bits */
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u_int32_t ses_key[8]; /* DES/3DES/AES key */
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u_int32_t ses_hmac[5]; /* hmac inner state */
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u_int32_t ses_hmac_len; /* hmac length */
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u_int32_t ses_iv[4]; /* DES/3DES/AES iv */
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u_int32_t ses_mlen; /* desired hash result len (12=ipsec or 16) */
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};
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#define TALITOS_SESSION(sid) ((sid) & 0x0fffffff)
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#define TALITOS_SID(crd, sesn) (((crd) << 28) | ((sesn) & 0x0fffffff))
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