1 /* $OpenBSD: noctvar.h,v 1.7 2003/06/02 19:08:58 jason Exp $ */ 2 3 /* 4 * Copyright (c) 2002 Jason L. Wright (jason@thought.net) 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Effort sponsored in part by the Defense Advanced Research Projects 29 * Agency (DARPA) and Air Force Research Laboratory, Air Force 30 * Materiel Command, USAF, under agreement number F30602-01-2-0537. 31 * 32 */ 33 34 #define NOCT_RNG_QLEN 15 35 #define NOCT_RNG_ENTRIES (1 << NOCT_RNG_QLEN) 36 #define NOCT_RNG_BUFSIZE (NOCT_RNG_ENTRIES * sizeof(u_int64_t)) 37 38 #define NOCT_PKH_QLEN 15 39 #define NOCT_PKH_ENTRIES (1 << NOCT_PKH_QLEN) 40 #define NOCT_PKH_BUFSIZE (NOCT_PKH_ENTRIES * sizeof(union noct_pkh_cmd)) 41 42 #define NOCT_EA_QLEN 15 43 #define NOCT_EA_ENTRIES (1 << NOCT_EA_QLEN) 44 #define NOCT_EA_BUFSIZE (NOCT_EA_ENTRIES * sizeof(struct noct_ea_cmd)) 45 46 #define NOCT_BN_CACHE_SIZE ((256) * (128 / 8)) 47 48 struct noct_workq { 49 SIMPLEQ_ENTRY(noct_workq) q_next; 50 struct cryptop *q_crp; 51 bus_dmamap_t q_dmamap; 52 bus_dma_segment_t q_dmaseg; 53 caddr_t q_buf; 54 u_int8_t q_macbuf[20]; 55 }; 56 57 struct noct_softc; 58 59 struct noct_bnc_sw { 60 u_long bn_off; /* cache offset */ 61 u_long bn_siz; /* cache size */ 62 void (*bn_callback)(struct noct_softc *, u_int32_t, int); 63 struct cryptkop *bn_krp; 64 }; 65 66 struct noct_softc { 67 struct device sc_dv; 68 bus_space_tag_t sc_st; 69 bus_space_handle_t sc_sh; 70 bus_dma_tag_t sc_dmat; 71 void *sc_ih; 72 bus_size_t sc_rar_last, sc_waw_last; 73 u_int sc_ramsize; 74 int32_t sc_cid; /* cryptodev id */ 75 76 u_int64_t *sc_rngbuf; 77 bus_dmamap_t sc_rngmap; 78 struct timeout sc_rngto; 79 int sc_rngtick; 80 81 bus_dmamap_t sc_pkhmap; /* pkh buffer map */ 82 bus_dmamap_t sc_bnmap; /* bignumber cache map */ 83 union noct_pkh_cmd *sc_pkhcmd; /* pkh command buffers */ 84 u_int8_t *sc_bncache; /* bignumber cache buffer */ 85 u_int32_t sc_pkhwp; /* pkh write pointer */ 86 u_int32_t sc_pkhrp; /* pkh read pointer */ 87 struct extent *sc_pkh_bn; /* pkh big number cache usage */ 88 struct noct_bnc_sw sc_pkh_bnsw[NOCT_PKH_ENTRIES]; 89 90 bus_dmamap_t sc_eamap; /* ea buffer map */ 91 u_int32_t sc_eawp; /* ea write pointer */ 92 u_int32_t sc_earp; /* ea read pointer */ 93 struct noct_ea_cmd *sc_eacmd; /* ea command buffers */ 94 95 SIMPLEQ_HEAD(,noct_workq) sc_inq; 96 SIMPLEQ_HEAD(,noct_workq) sc_chipq; 97 SIMPLEQ_HEAD(,noct_workq) sc_outq; 98 }; 99 100 #define NOCT_READ_4(sc,r) noct_read_4((sc), (r)) 101 #define NOCT_WRITE_4(sc,r,v) noct_write_4((sc), (r), (v)) 102 #define NOCT_READ_8(sc,r) noct_read_8((sc), (r)) 103 #define NOCT_WRITE_8(sc,r,v) noct_write_8((sc), (r), (v)) 104 105 #define NOCT_CARD(sid) (((sid) & 0xf0000000) >> 28) 106 #define NOCT_SESSION(sid) ( (sid) & 0x0fffffff) 107 #define NOCT_SID(crd, sesn) (((crd) << 28) | ((sesn) & 0x0fffffff)) 108 109 #define NOCT_WAKEUP(sc) wakeup(&(sc)->sc_eawp) 110 #define NOCT_SLEEP(sc) tsleep(&(sc)->sc_eawp, PWAIT, "noctea", 0) 111 112