1/* 2 * Freescale SEC data structures for integration with ocf-linux 3 * 4 * Copyright (c) 2006 Freescale Semiconductor, Inc. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30/* 31 * paired descriptor and associated crypto operation 32 */ 33struct desc_cryptop_pair { 34 struct talitos_desc cf_desc; /* descriptor ptr */ 35 struct cryptop *cf_crp; /* cryptop ptr */ 36}; 37 38/* 39 * Holds data specific to a single talitos device. 40 */ 41struct talitos_softc { 42 softc_device_decl sc_cdev; 43 struct platform_device *sc_dev; /* device backpointer */ 44 ocf_iomem_t sc_base_addr; 45 int sc_irq; 46 int sc_num; /* if we have multiple chips */ 47 int32_t sc_cid; /* crypto tag */ 48 u64 sc_chiprev; /* major/minor chip revision */ 49 int sc_nsessions; 50 struct talitos_session *sc_sessions; 51 int sc_num_channels;/* number of crypto channels */ 52 int sc_chfifo_len; /* channel fetch fifo len */ 53 int sc_exec_units; /* execution units mask */ 54 int sc_desc_types; /* descriptor types mask */ 55 /* 56 * mutual exclusion for intra-channel resources, e.g. fetch fifos 57 * the last entry is a meta-channel lock used by the channel scheduler 58 */ 59 spinlock_t *sc_chnfifolock; 60 /* sc_chnlastalgo contains last algorithm for that channel */ 61 int *sc_chnlastalg; 62 /* sc_chnfifo holds pending descriptor--crypto operation pairs */ 63 struct desc_cryptop_pair **sc_chnfifo; 64}; 65 66struct talitos_session { 67 u_int32_t ses_used; 68 u_int32_t ses_klen; /* key length in bits */ 69 u_int32_t ses_key[8]; /* DES/3DES/AES key */ 70 u_int32_t ses_hmac[5]; /* hmac inner state */ 71 u_int32_t ses_hmac_len; /* hmac length */ 72 u_int32_t ses_mlen; /* desired hash result len (12=ipsec or 16) */ 73}; 74 75#define TALITOS_SESSION(sid) ((sid) & 0x0fffffff) 76#define TALITOS_SID(crd, sesn) (((crd) << 28) | ((sesn) & 0x0fffffff)) 77