1*86d7f5d3SJohn Marino /* $FreeBSD: src/sys/dev/hifn/hifn7751var.h,v 1.1.2.2 2003/06/04 17:56:59 sam Exp $ */ 2*86d7f5d3SJohn Marino /* $DragonFly: src/sys/dev/crypto/hifn/hifn7751var.h,v 1.3 2007/12/04 09:11:12 hasso Exp $ */ 3*86d7f5d3SJohn Marino /* $OpenBSD: hifn7751var.h,v 1.42 2002/04/08 17:49:42 jason Exp $ */ 4*86d7f5d3SJohn Marino 5*86d7f5d3SJohn Marino /*- 6*86d7f5d3SJohn Marino * Invertex AEON / Hifn 7751 driver 7*86d7f5d3SJohn Marino * Copyright (c) 1999 Invertex Inc. All rights reserved. 8*86d7f5d3SJohn Marino * Copyright (c) 1999 Theo de Raadt 9*86d7f5d3SJohn Marino * Copyright (c) 2000-2001 Network Security Technologies, Inc. 10*86d7f5d3SJohn Marino * http://www.netsec.net 11*86d7f5d3SJohn Marino * 12*86d7f5d3SJohn Marino * Please send any comments, feedback, bug-fixes, or feature requests to 13*86d7f5d3SJohn Marino * software@invertex.com. 14*86d7f5d3SJohn Marino * 15*86d7f5d3SJohn Marino * Redistribution and use in source and binary forms, with or without 16*86d7f5d3SJohn Marino * modification, are permitted provided that the following conditions 17*86d7f5d3SJohn Marino * are met: 18*86d7f5d3SJohn Marino * 19*86d7f5d3SJohn Marino * 1. Redistributions of source code must retain the above copyright 20*86d7f5d3SJohn Marino * notice, this list of conditions and the following disclaimer. 21*86d7f5d3SJohn Marino * 2. Redistributions in binary form must reproduce the above copyright 22*86d7f5d3SJohn Marino * notice, this list of conditions and the following disclaimer in the 23*86d7f5d3SJohn Marino * documentation and/or other materials provided with the distribution. 24*86d7f5d3SJohn Marino * 3. The name of the author may not be used to endorse or promote products 25*86d7f5d3SJohn Marino * derived from this software without specific prior written permission. 26*86d7f5d3SJohn Marino * 27*86d7f5d3SJohn Marino * 28*86d7f5d3SJohn Marino * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 29*86d7f5d3SJohn Marino * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 30*86d7f5d3SJohn Marino * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 31*86d7f5d3SJohn Marino * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 32*86d7f5d3SJohn Marino * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 33*86d7f5d3SJohn Marino * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 34*86d7f5d3SJohn Marino * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 35*86d7f5d3SJohn Marino * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 36*86d7f5d3SJohn Marino * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 37*86d7f5d3SJohn Marino * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 38*86d7f5d3SJohn Marino * 39*86d7f5d3SJohn Marino * Effort sponsored in part by the Defense Advanced Research Projects 40*86d7f5d3SJohn Marino * Agency (DARPA) and Air Force Research Laboratory, Air Force 41*86d7f5d3SJohn Marino * Materiel Command, USAF, under agreement number F30602-01-2-0537. 42*86d7f5d3SJohn Marino * 43*86d7f5d3SJohn Marino */ 44*86d7f5d3SJohn Marino 45*86d7f5d3SJohn Marino #ifndef __HIFN7751VAR_H__ 46*86d7f5d3SJohn Marino #define __HIFN7751VAR_H__ 47*86d7f5d3SJohn Marino 48*86d7f5d3SJohn Marino #ifdef _KERNEL 49*86d7f5d3SJohn Marino 50*86d7f5d3SJohn Marino /* 51*86d7f5d3SJohn Marino * Some configurable values for the driver. By default command+result 52*86d7f5d3SJohn Marino * descriptor rings are the same size. The src+dst descriptor rings 53*86d7f5d3SJohn Marino * are sized at 3.5x the number of potential commands. Slower parts 54*86d7f5d3SJohn Marino * (e.g. 7951) tend to run out of src descriptors; faster parts (7811) 55*86d7f5d3SJohn Marino * src+cmd/result descriptors. It's not clear that increasing the size 56*86d7f5d3SJohn Marino * of the descriptor rings helps performance significantly as other 57*86d7f5d3SJohn Marino * factors tend to come into play (e.g. copying misaligned packets). 58*86d7f5d3SJohn Marino */ 59*86d7f5d3SJohn Marino #define HIFN_D_CMD_RSIZE 24 /* command descriptors */ 60*86d7f5d3SJohn Marino #define HIFN_D_SRC_RSIZE ((HIFN_D_CMD_RSIZE * 7) / 2) /* source descriptors */ 61*86d7f5d3SJohn Marino #define HIFN_D_RES_RSIZE HIFN_D_CMD_RSIZE /* result descriptors */ 62*86d7f5d3SJohn Marino #define HIFN_D_DST_RSIZE HIFN_D_SRC_RSIZE /* destination descriptors */ 63*86d7f5d3SJohn Marino 64*86d7f5d3SJohn Marino /* 65*86d7f5d3SJohn Marino * Length values for cryptography 66*86d7f5d3SJohn Marino */ 67*86d7f5d3SJohn Marino #define HIFN_DES_KEY_LENGTH 8 68*86d7f5d3SJohn Marino #define HIFN_3DES_KEY_LENGTH 24 69*86d7f5d3SJohn Marino #define HIFN_MAX_CRYPT_KEY_LENGTH HIFN_3DES_KEY_LENGTH 70*86d7f5d3SJohn Marino #define HIFN_IV_LENGTH 8 71*86d7f5d3SJohn Marino #define HIFN_AES_IV_LENGTH 16 72*86d7f5d3SJohn Marino #define HIFN_MAX_IV_LENGTH HIFN_AES_IV_LENGTH 73*86d7f5d3SJohn Marino 74*86d7f5d3SJohn Marino /* 75*86d7f5d3SJohn Marino * Length values for authentication 76*86d7f5d3SJohn Marino */ 77*86d7f5d3SJohn Marino #define HIFN_MAC_KEY_LENGTH 64 78*86d7f5d3SJohn Marino #define HIFN_MD5_LENGTH 16 79*86d7f5d3SJohn Marino #define HIFN_SHA1_LENGTH 20 80*86d7f5d3SJohn Marino #define HIFN_MAC_TRUNC_LENGTH 12 81*86d7f5d3SJohn Marino 82*86d7f5d3SJohn Marino #define MAX_SCATTER 64 83*86d7f5d3SJohn Marino 84*86d7f5d3SJohn Marino /* 85*86d7f5d3SJohn Marino * Data structure to hold all 4 rings and any other ring related data. 86*86d7f5d3SJohn Marino */ 87*86d7f5d3SJohn Marino struct hifn_dma { 88*86d7f5d3SJohn Marino /* 89*86d7f5d3SJohn Marino * Descriptor rings. We add +1 to the size to accomidate the 90*86d7f5d3SJohn Marino * jump descriptor. 91*86d7f5d3SJohn Marino */ 92*86d7f5d3SJohn Marino struct hifn_desc cmdr[HIFN_D_CMD_RSIZE+1]; 93*86d7f5d3SJohn Marino struct hifn_desc srcr[HIFN_D_SRC_RSIZE+1]; 94*86d7f5d3SJohn Marino struct hifn_desc dstr[HIFN_D_DST_RSIZE+1]; 95*86d7f5d3SJohn Marino struct hifn_desc resr[HIFN_D_RES_RSIZE+1]; 96*86d7f5d3SJohn Marino 97*86d7f5d3SJohn Marino struct hifn_command *hifn_commands[HIFN_D_RES_RSIZE]; 98*86d7f5d3SJohn Marino 99*86d7f5d3SJohn Marino u_char command_bufs[HIFN_D_CMD_RSIZE][HIFN_MAX_COMMAND]; 100*86d7f5d3SJohn Marino u_char result_bufs[HIFN_D_CMD_RSIZE][HIFN_MAX_RESULT]; 101*86d7f5d3SJohn Marino u_int32_t slop[HIFN_D_CMD_RSIZE]; 102*86d7f5d3SJohn Marino 103*86d7f5d3SJohn Marino u_int64_t test_src, test_dst; 104*86d7f5d3SJohn Marino 105*86d7f5d3SJohn Marino /* 106*86d7f5d3SJohn Marino * Our current positions for insertion and removal from the desriptor 107*86d7f5d3SJohn Marino * rings. 108*86d7f5d3SJohn Marino */ 109*86d7f5d3SJohn Marino int cmdi, srci, dsti, resi; 110*86d7f5d3SJohn Marino volatile int cmdu, srcu, dstu, resu; 111*86d7f5d3SJohn Marino int cmdk, srck, dstk, resk; 112*86d7f5d3SJohn Marino }; 113*86d7f5d3SJohn Marino 114*86d7f5d3SJohn Marino struct hifn_session { 115*86d7f5d3SJohn Marino int hs_used; 116*86d7f5d3SJohn Marino int hs_mlen; 117*86d7f5d3SJohn Marino u_int8_t hs_iv[HIFN_MAX_IV_LENGTH]; 118*86d7f5d3SJohn Marino }; 119*86d7f5d3SJohn Marino 120*86d7f5d3SJohn Marino #define HIFN_RING_SYNC(sc, r, i, f) \ 121*86d7f5d3SJohn Marino bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_dmamap, (f)) 122*86d7f5d3SJohn Marino 123*86d7f5d3SJohn Marino #define HIFN_CMDR_SYNC(sc, i, f) HIFN_RING_SYNC((sc), cmdr, (i), (f)) 124*86d7f5d3SJohn Marino #define HIFN_RESR_SYNC(sc, i, f) HIFN_RING_SYNC((sc), resr, (i), (f)) 125*86d7f5d3SJohn Marino #define HIFN_SRCR_SYNC(sc, i, f) HIFN_RING_SYNC((sc), srcr, (i), (f)) 126*86d7f5d3SJohn Marino #define HIFN_DSTR_SYNC(sc, i, f) HIFN_RING_SYNC((sc), dstr, (i), (f)) 127*86d7f5d3SJohn Marino 128*86d7f5d3SJohn Marino #define HIFN_CMD_SYNC(sc, i, f) \ 129*86d7f5d3SJohn Marino bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_dmamap, (f)) 130*86d7f5d3SJohn Marino 131*86d7f5d3SJohn Marino #define HIFN_RES_SYNC(sc, i, f) \ 132*86d7f5d3SJohn Marino bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_dmamap, (f)) 133*86d7f5d3SJohn Marino 134*86d7f5d3SJohn Marino /* We use a state machine to on sessions */ 135*86d7f5d3SJohn Marino #define HS_STATE_FREE 0 /* unused session entry */ 136*86d7f5d3SJohn Marino #define HS_STATE_USED 1 /* allocated, but key not on card */ 137*86d7f5d3SJohn Marino #define HS_STATE_KEY 2 /* allocated and key is on card */ 138*86d7f5d3SJohn Marino 139*86d7f5d3SJohn Marino /* 140*86d7f5d3SJohn Marino * Holds data specific to a single HIFN board. 141*86d7f5d3SJohn Marino */ 142*86d7f5d3SJohn Marino struct hifn_softc { 143*86d7f5d3SJohn Marino device_t sc_dev; /* device backpointer */ 144*86d7f5d3SJohn Marino struct lock sc_lock; /* per-instance lock */ 145*86d7f5d3SJohn Marino bus_dma_tag_t sc_dmat; /* parent DMA tag decriptor */ 146*86d7f5d3SJohn Marino struct resource *sc_bar0res; 147*86d7f5d3SJohn Marino bus_space_handle_t sc_sh0; /* bar0 bus space handle */ 148*86d7f5d3SJohn Marino bus_space_tag_t sc_st0; /* bar0 bus space tag */ 149*86d7f5d3SJohn Marino bus_size_t sc_bar0_lastreg;/* bar0 last reg written */ 150*86d7f5d3SJohn Marino struct resource *sc_bar1res; 151*86d7f5d3SJohn Marino bus_space_handle_t sc_sh1; /* bar1 bus space handle */ 152*86d7f5d3SJohn Marino bus_space_tag_t sc_st1; /* bar1 bus space tag */ 153*86d7f5d3SJohn Marino bus_size_t sc_bar1_lastreg;/* bar1 last reg written */ 154*86d7f5d3SJohn Marino struct resource *sc_irq; 155*86d7f5d3SJohn Marino void *sc_intrhand; /* interrupt handle */ 156*86d7f5d3SJohn Marino 157*86d7f5d3SJohn Marino u_int32_t sc_dmaier; 158*86d7f5d3SJohn Marino u_int32_t sc_drammodel; /* 1=dram, 0=sram */ 159*86d7f5d3SJohn Marino u_int32_t sc_pllconfig; /* 7954/7955/7956 PLL config */ 160*86d7f5d3SJohn Marino 161*86d7f5d3SJohn Marino struct hifn_dma *sc_dma; 162*86d7f5d3SJohn Marino bus_dmamap_t sc_dmamap; 163*86d7f5d3SJohn Marino bus_dma_segment_t sc_dmasegs[1]; 164*86d7f5d3SJohn Marino bus_addr_t sc_dma_physaddr;/* physical address of sc_dma */ 165*86d7f5d3SJohn Marino int sc_dmansegs; 166*86d7f5d3SJohn Marino int32_t sc_cid; 167*86d7f5d3SJohn Marino int sc_maxses; 168*86d7f5d3SJohn Marino int sc_nsessions; 169*86d7f5d3SJohn Marino struct hifn_session *sc_sessions; 170*86d7f5d3SJohn Marino int sc_ramsize; 171*86d7f5d3SJohn Marino int sc_flags; 172*86d7f5d3SJohn Marino #define HIFN_HAS_RNG 0x1 /* includes random number generator */ 173*86d7f5d3SJohn Marino #define HIFN_HAS_PUBLIC 0x2 /* includes public key support */ 174*86d7f5d3SJohn Marino #define HIFN_HAS_AES 0x4 /* includes AES support */ 175*86d7f5d3SJohn Marino #define HIFN_IS_7811 0x8 /* Hifn 7811 part */ 176*86d7f5d3SJohn Marino #define HIFN_IS_7956 0x10 /* Hifn 7956/7955 don't have SDRAM */ 177*86d7f5d3SJohn Marino struct callout sc_rngto; /* for polling RNG */ 178*86d7f5d3SJohn Marino struct callout sc_tickto; /* for managing DMA */ 179*86d7f5d3SJohn Marino int sc_rngfirst; 180*86d7f5d3SJohn Marino int sc_rnghz; /* RNG polling frequency */ 181*86d7f5d3SJohn Marino struct rndtest_state *sc_rndtest; /* RNG test state */ 182*86d7f5d3SJohn Marino void (*sc_harvest)(struct rndtest_state *, 183*86d7f5d3SJohn Marino void *, u_int); 184*86d7f5d3SJohn Marino int sc_c_busy; /* command ring busy */ 185*86d7f5d3SJohn Marino int sc_s_busy; /* source data ring busy */ 186*86d7f5d3SJohn Marino int sc_d_busy; /* destination data ring busy */ 187*86d7f5d3SJohn Marino int sc_r_busy; /* result ring busy */ 188*86d7f5d3SJohn Marino int sc_active; /* for initial countdown */ 189*86d7f5d3SJohn Marino int sc_needwakeup; /* ops q'd wating on resources */ 190*86d7f5d3SJohn Marino int sc_curbatch; /* # ops submitted w/o int */ 191*86d7f5d3SJohn Marino int sc_suspended; 192*86d7f5d3SJohn Marino }; 193*86d7f5d3SJohn Marino 194*86d7f5d3SJohn Marino #define HIFN_LOCK(_sc) lockmgr(&(_sc)->sc_lock, LK_EXCLUSIVE) 195*86d7f5d3SJohn Marino #define HIFN_UNLOCK(_sc) lockmgr(&(_sc)->sc_lock, LK_RELEASE) 196*86d7f5d3SJohn Marino 197*86d7f5d3SJohn Marino /* 198*86d7f5d3SJohn Marino * hifn_command_t 199*86d7f5d3SJohn Marino * 200*86d7f5d3SJohn Marino * This is the control structure used to pass commands to hifn_encrypt(). 201*86d7f5d3SJohn Marino * 202*86d7f5d3SJohn Marino * flags 203*86d7f5d3SJohn Marino * ----- 204*86d7f5d3SJohn Marino * Flags is the bitwise "or" values for command configuration. A single 205*86d7f5d3SJohn Marino * encrypt direction needs to be set: 206*86d7f5d3SJohn Marino * 207*86d7f5d3SJohn Marino * HIFN_ENCODE or HIFN_DECODE 208*86d7f5d3SJohn Marino * 209*86d7f5d3SJohn Marino * To use cryptography, a single crypto algorithm must be included: 210*86d7f5d3SJohn Marino * 211*86d7f5d3SJohn Marino * HIFN_CRYPT_3DES or HIFN_CRYPT_DES 212*86d7f5d3SJohn Marino * 213*86d7f5d3SJohn Marino * To use authentication is used, a single MAC algorithm must be included: 214*86d7f5d3SJohn Marino * 215*86d7f5d3SJohn Marino * HIFN_MAC_MD5 or HIFN_MAC_SHA1 216*86d7f5d3SJohn Marino * 217*86d7f5d3SJohn Marino * By default MD5 uses a 16 byte hash and SHA-1 uses a 20 byte hash. 218*86d7f5d3SJohn Marino * If the value below is set, hash values are truncated or assumed 219*86d7f5d3SJohn Marino * truncated to 12 bytes: 220*86d7f5d3SJohn Marino * 221*86d7f5d3SJohn Marino * HIFN_MAC_TRUNC 222*86d7f5d3SJohn Marino * 223*86d7f5d3SJohn Marino * Keys for encryption and authentication can be sent as part of a command, 224*86d7f5d3SJohn Marino * or the last key value used with a particular session can be retrieved 225*86d7f5d3SJohn Marino * and used again if either of these flags are not specified. 226*86d7f5d3SJohn Marino * 227*86d7f5d3SJohn Marino * HIFN_CRYPT_NEW_KEY, HIFN_MAC_NEW_KEY 228*86d7f5d3SJohn Marino * 229*86d7f5d3SJohn Marino * session_num 230*86d7f5d3SJohn Marino * ----------- 231*86d7f5d3SJohn Marino * A number between 0 and 2048 (for DRAM models) or a number between 232*86d7f5d3SJohn Marino * 0 and 768 (for SRAM models). Those who don't want to use session 233*86d7f5d3SJohn Marino * numbers should leave value at zero and send a new crypt key and/or 234*86d7f5d3SJohn Marino * new MAC key on every command. If you use session numbers and 235*86d7f5d3SJohn Marino * don't send a key with a command, the last key sent for that same 236*86d7f5d3SJohn Marino * session number will be used. 237*86d7f5d3SJohn Marino * 238*86d7f5d3SJohn Marino * Warning: Using session numbers and multiboard at the same time 239*86d7f5d3SJohn Marino * is currently broken. 240*86d7f5d3SJohn Marino * 241*86d7f5d3SJohn Marino * mbuf 242*86d7f5d3SJohn Marino * ---- 243*86d7f5d3SJohn Marino * Either fill in the mbuf pointer and npa=0 or 244*86d7f5d3SJohn Marino * fill packp[] and packl[] and set npa to > 0 245*86d7f5d3SJohn Marino * 246*86d7f5d3SJohn Marino * mac_header_skip 247*86d7f5d3SJohn Marino * --------------- 248*86d7f5d3SJohn Marino * The number of bytes of the source_buf that are skipped over before 249*86d7f5d3SJohn Marino * authentication begins. This must be a number between 0 and 2^16-1 250*86d7f5d3SJohn Marino * and can be used by IPsec implementers to skip over IP headers. 251*86d7f5d3SJohn Marino * *** Value ignored if authentication not used *** 252*86d7f5d3SJohn Marino * 253*86d7f5d3SJohn Marino * crypt_header_skip 254*86d7f5d3SJohn Marino * ----------------- 255*86d7f5d3SJohn Marino * The number of bytes of the source_buf that are skipped over before 256*86d7f5d3SJohn Marino * the cryptographic operation begins. This must be a number between 0 257*86d7f5d3SJohn Marino * and 2^16-1. For IPsec, this number will always be 8 bytes larger 258*86d7f5d3SJohn Marino * than the auth_header_skip (to skip over the ESP header). 259*86d7f5d3SJohn Marino * *** Value ignored if cryptography not used *** 260*86d7f5d3SJohn Marino * 261*86d7f5d3SJohn Marino */ 262*86d7f5d3SJohn Marino struct hifn_operand { 263*86d7f5d3SJohn Marino union { 264*86d7f5d3SJohn Marino struct mbuf *m; 265*86d7f5d3SJohn Marino struct uio *io; 266*86d7f5d3SJohn Marino } u; 267*86d7f5d3SJohn Marino bus_dmamap_t map; 268*86d7f5d3SJohn Marino bus_size_t mapsize; 269*86d7f5d3SJohn Marino int nsegs; 270*86d7f5d3SJohn Marino bus_dma_segment_t segs[MAX_SCATTER]; 271*86d7f5d3SJohn Marino }; 272*86d7f5d3SJohn Marino struct hifn_command { 273*86d7f5d3SJohn Marino u_int16_t session_num; 274*86d7f5d3SJohn Marino u_int16_t base_masks, cry_masks, mac_masks; 275*86d7f5d3SJohn Marino u_int8_t iv[HIFN_MAX_IV_LENGTH], *ck, mac[HIFN_MAC_KEY_LENGTH]; 276*86d7f5d3SJohn Marino int cklen; 277*86d7f5d3SJohn Marino int sloplen, slopidx; 278*86d7f5d3SJohn Marino 279*86d7f5d3SJohn Marino struct hifn_operand src; 280*86d7f5d3SJohn Marino struct hifn_operand dst; 281*86d7f5d3SJohn Marino 282*86d7f5d3SJohn Marino struct hifn_softc *softc; 283*86d7f5d3SJohn Marino struct cryptop *crp; 284*86d7f5d3SJohn Marino struct cryptodesc *enccrd, *maccrd; 285*86d7f5d3SJohn Marino }; 286*86d7f5d3SJohn Marino 287*86d7f5d3SJohn Marino #define src_m src.u.m 288*86d7f5d3SJohn Marino #define src_io src.u.io 289*86d7f5d3SJohn Marino #define src_map src.map 290*86d7f5d3SJohn Marino #define src_mapsize src.mapsize 291*86d7f5d3SJohn Marino #define src_segs src.segs 292*86d7f5d3SJohn Marino #define src_nsegs src.nsegs 293*86d7f5d3SJohn Marino 294*86d7f5d3SJohn Marino #define dst_m dst.u.m 295*86d7f5d3SJohn Marino #define dst_io dst.u.io 296*86d7f5d3SJohn Marino #define dst_map dst.map 297*86d7f5d3SJohn Marino #define dst_mapsize dst.mapsize 298*86d7f5d3SJohn Marino #define dst_segs dst.segs 299*86d7f5d3SJohn Marino #define dst_nsegs dst.nsegs 300*86d7f5d3SJohn Marino 301*86d7f5d3SJohn Marino /* 302*86d7f5d3SJohn Marino * Return values for hifn_crypto() 303*86d7f5d3SJohn Marino */ 304*86d7f5d3SJohn Marino #define HIFN_CRYPTO_SUCCESS 0 305*86d7f5d3SJohn Marino #define HIFN_CRYPTO_BAD_INPUT (-1) 306*86d7f5d3SJohn Marino #define HIFN_CRYPTO_RINGS_FULL (-2) 307*86d7f5d3SJohn Marino 308*86d7f5d3SJohn Marino /************************************************************************** 309*86d7f5d3SJohn Marino * 310*86d7f5d3SJohn Marino * Function: hifn_crypto 311*86d7f5d3SJohn Marino * 312*86d7f5d3SJohn Marino * Purpose: Called by external drivers to begin an encryption on the 313*86d7f5d3SJohn Marino * HIFN board. 314*86d7f5d3SJohn Marino * 315*86d7f5d3SJohn Marino * Blocking/Non-blocking Issues 316*86d7f5d3SJohn Marino * ============================ 317*86d7f5d3SJohn Marino * The driver cannot block in hifn_crypto (no calls to tsleep) currently. 318*86d7f5d3SJohn Marino * hifn_crypto() returns HIFN_CRYPTO_RINGS_FULL if there is not enough 319*86d7f5d3SJohn Marino * room in any of the rings for the request to proceed. 320*86d7f5d3SJohn Marino * 321*86d7f5d3SJohn Marino * Return Values 322*86d7f5d3SJohn Marino * ============= 323*86d7f5d3SJohn Marino * 0 for success, negative values on error 324*86d7f5d3SJohn Marino * 325*86d7f5d3SJohn Marino * Defines for negative error codes are: 326*86d7f5d3SJohn Marino * 327*86d7f5d3SJohn Marino * HIFN_CRYPTO_BAD_INPUT : The passed in command had invalid settings. 328*86d7f5d3SJohn Marino * HIFN_CRYPTO_RINGS_FULL : All DMA rings were full and non-blocking 329*86d7f5d3SJohn Marino * behaviour was requested. 330*86d7f5d3SJohn Marino * 331*86d7f5d3SJohn Marino *************************************************************************/ 332*86d7f5d3SJohn Marino 333*86d7f5d3SJohn Marino /* 334*86d7f5d3SJohn Marino * Convert back and forth from 'sid' to 'card' and 'session' 335*86d7f5d3SJohn Marino */ 336*86d7f5d3SJohn Marino #define HIFN_CARD(sid) (((sid) & 0xf0000000) >> 28) 337*86d7f5d3SJohn Marino #define HIFN_SESSION(sid) ((sid) & 0x000007ff) 338*86d7f5d3SJohn Marino #define HIFN_SID(crd,ses) (((crd) << 28) | ((ses) & 0x7ff)) 339*86d7f5d3SJohn Marino 340*86d7f5d3SJohn Marino #endif /* _KERNEL */ 341*86d7f5d3SJohn Marino 342*86d7f5d3SJohn Marino struct hifn_stats { 343*86d7f5d3SJohn Marino u_int64_t hst_ibytes; 344*86d7f5d3SJohn Marino u_int64_t hst_obytes; 345*86d7f5d3SJohn Marino u_int32_t hst_ipackets; 346*86d7f5d3SJohn Marino u_int32_t hst_opackets; 347*86d7f5d3SJohn Marino u_int32_t hst_invalid; 348*86d7f5d3SJohn Marino u_int32_t hst_nomem; /* malloc or one of hst_nomem_* */ 349*86d7f5d3SJohn Marino u_int32_t hst_abort; 350*86d7f5d3SJohn Marino u_int32_t hst_noirq; /* IRQ for no reason */ 351*86d7f5d3SJohn Marino u_int32_t hst_totbatch; /* ops submitted w/o interrupt */ 352*86d7f5d3SJohn Marino u_int32_t hst_maxbatch; /* max ops submitted together */ 353*86d7f5d3SJohn Marino u_int32_t hst_unaligned; /* unaligned src caused copy */ 354*86d7f5d3SJohn Marino /* 355*86d7f5d3SJohn Marino * The following divides hst_nomem into more specific buckets. 356*86d7f5d3SJohn Marino */ 357*86d7f5d3SJohn Marino u_int32_t hst_nomem_map; /* bus_dmamap_create failed */ 358*86d7f5d3SJohn Marino u_int32_t hst_nomem_load; /* bus_dmamap_load_* failed */ 359*86d7f5d3SJohn Marino u_int32_t hst_nomem_mbuf; /* MGET* failed */ 360*86d7f5d3SJohn Marino u_int32_t hst_nomem_mcl; /* MCLGET* failed */ 361*86d7f5d3SJohn Marino u_int32_t hst_nomem_cr; /* out of command/result descriptor */ 362*86d7f5d3SJohn Marino u_int32_t hst_nomem_sd; /* out of src/dst descriptors */ 363*86d7f5d3SJohn Marino }; 364*86d7f5d3SJohn Marino 365*86d7f5d3SJohn Marino #endif /* __HIFN7751VAR_H__ */ 366