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      1 /*	$NetBSD: ubsecreg.h,v 1.5 2015/04/13 15:43:43 riastradh Exp $	*/
      2 /*	$OpenBSD: ubsecreg.h,v 1.29 2009/03/25 12:17:30 reyk Exp $	*/
      3 
      4 /*
      5  * Copyright (c) 2000 Theo de Raadt
      6  * Copyright (c) 2001 Patrik Lindergren (patrik (at) ipunplugged.com)
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  *
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     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  * Effort sponsored in part by the Defense Advanced Research Projects
     30  * Agency (DARPA) and Air Force Research Laboratory, Air Force
     31  * Materiel Command, USAF, under agreement number F30602-01-2-0537.
     32  *
     33  */
     34 
     35 #ifndef	_DEV_PCI_UBSECREG_H
     36 #define	_DEV_PCI_UBSECREG_H
     37 
     38 /*
     39  * Register definitions for 5601 BlueSteel Networks Ubiquitous Broadband
     40  * Security "uBSec" chip.  Definitions from revision 2.8 of the product
     41  * datasheet.
     42  */
     43 
     44 #define BS_BAR			0x10	/* DMA base address register */
     45 #define	BS_TRDY_TIMEOUT		0x40	/* TRDY timeout */
     46 #define	BS_RETRY_TIMEOUT	0x41	/* DMA retry timeout */
     47 
     48 #define	UBS_PCI_RTY_SHIFT			8
     49 #define	UBS_PCI_RTY_MASK			0xff
     50 #define	UBS_PCI_RTY(misc) \
     51     (((misc) >> UBS_PCI_RTY_SHIFT) & UBS_PCI_RTY_MASK)
     52 
     53 #define	UBS_PCI_TOUT_SHIFT			0
     54 #define	UBS_PCI_TOUT_MASK			0xff
     55 #define	UBS_PCI_TOUT(misc) \
     56     (((misc) >> PCI_TOUT_SHIFT) & PCI_TOUT_MASK)
     57 
     58 /*
     59  * DMA Control & Status Registers (offset from BS_BAR)
     60  */
     61 #define	BS_MCR1		0x00	/* DMA Master Command Record 1 */
     62 #define	BS_CTRL		0x04	/* DMA Control */
     63 #define	BS_STAT		0x08	/* DMA Status */
     64 #define	BS_ERR		0x0c	/* DMA Error Address */
     65 #define	BS_MCR2		0x10	/* DMA Master Command Record 2 */
     66 #define	BS_MCR3		0x0014	/* 5827+, DMA Master Command Record 3 */
     67 #define	BS_MCR4		0x001c	/* 5827+, DMA Master Command Record 4 */
     68 #define	BS_CFG		0x0700	/* 5827+, Configuration Register */
     69 #define	BS_INT		0x0f00	/* 5827+, Interrupt Register */
     70 
     71 /* BS_CTRL - DMA Control */
     72 #define	BS_CTRL_RESET		0x80000000	/* hardware reset, 5805/5820 */
     73 #define	BS_CTRL_MCR2INT		0x40000000	/* enable intr MCR for MCR2 */
     74 #define	BS_CTRL_MCR1INT		0x20000000	/* enable intr MCR for MCR1 */
     75 #define	BS_CTRL_OFM		0x10000000	/* Output fragment mode */
     76 #define	BS_CTRL_BE32		0x08000000	/* big-endian, 32bit bytes */
     77 #define	BS_CTRL_BE64		0x04000000	/* big-endian, 64bit bytes */
     78 #define	BS_CTRL_DMAERR		0x02000000	/* enable intr DMA error */
     79 #define	BS_CTRL_RNG_M		0x01800000	/* RNG mode */
     80 #define	BS_CTRL_RNG_1		0x00000000	/* 1bit rn/one slow clock */
     81 #define	BS_CTRL_RNG_4		0x00800000	/* 1bit rn/four slow clocks */
     82 #define	BS_CTRL_RNG_8		0x01000000	/* 1bit rn/eight slow clocks */
     83 #define	BS_CTRL_RNG_16		0x01800000	/* 1bit rn/16 slow clocks */
     84 #define	BS_CTRL_SWNORM		0x00400000	/* 582[01], sw normalization */
     85 #define	BS_CTRL_MCR3INT		0x00400000	/* 5827+, intr for MCR3 */
     86 #define	BS_CTRL_MCR4INT		0x00200000	/* 5827+, intr for MCR4 */
     87 #define	BS_CTRL_BSIZE240	0x000f0000	/* 5827+, burst size 240 */
     88 #define	BS_CTRL_FRAG_M		0x0000ffff	/* output fragment size mask */
     89 #define	BS_CTRL_LITTLE_ENDIAN	(BS_CTRL_BE32 | BS_CTRL_BE64)
     90 
     91 /* BS_STAT - DMA Status */
     92 #define	BS_STAT_MCR1_BUSY	0x80000000	/* MCR1 is busy */
     93 #define	BS_STAT_MCR1_FULL	0x40000000	/* MCR1 is full */
     94 #define	BS_STAT_MCR1_DONE	0x20000000	/* MCR1 is done */
     95 #define	BS_STAT_DMAERR		0x10000000	/* DMA error */
     96 #define	BS_STAT_MCR2_FULL	0x08000000	/* MCR2 is full */
     97 #define	BS_STAT_MCR2_DONE	0x04000000	/* MCR2 is done */
     98 #define	BS_STAT_MCR1_ALLEMPTY	0x02000000	/* 5821, MCR1 is empty */
     99 #define	BS_STAT_MCR2_ALLEMPTY	0x01000000	/* 5821, MCR2 is empty */
    100 #define	BS_STAT_MCR3_ALLEMPTY	0x00800000	/* 5827+, MCR3 is empty */
    101 #define	BS_STAT_MCR4_ALLEMPTY	0x00400000	/* 5827+, MCR4 is empty */
    102 #define	BS_STAT_MCR3_FULL	0x00080000	/* 5827+, MCR3 is full */
    103 #define	BS_STAT_MCR3_DONE	0x00040000	/* 5827+, MCR3 is done */
    104 #define	BS_STAT_MCR4_FULL	0x00020000	/* 5827+, MCR4 is full */
    105 #define	BS_STAT_MCR4_DONE	0x00010000	/* 5827+, MCR4 is done */
    106 
    107 /* BS_ERR - DMA Error Address */
    108 #define	BS_ERR_ADDR		0xfffffffc	/* error address mask */
    109 #define	BS_ERR_READ		0x00000002	/* fault was on read */
    110 
    111 /* BS_CFG */
    112 #define	BS_CFG_RNG		0x00000001	/* 5827+, enable RNG */
    113 
    114 /* BS_INT */
    115 #define	BS_INT_DMAINT		0x80000000	/* 5827+, enable DMA intr */
    116 
    117 /* DES/3DES */
    118 struct ubsec_pktctx {
    119 	u_int32_t	pc_deskey[6];		/* 3DES key */
    120 	u_int32_t	pc_hminner[5];		/* hmac inner state */
    121 	u_int32_t	pc_hmouter[5];		/* hmac outer state */
    122 	u_int32_t	pc_iv[2];		/* [3]DES iv */
    123 	u_int16_t	pc_flags;		/* flags, below */
    124 	u_int16_t	pc_offset;		/* crypto offset */
    125 };
    126 #define	UBS_PKTCTX_ENC_3DES	0x8000		/* use 3des */
    127 #define	UBS_PKTCTX_ENC_NONE	0x0000		/* no encryption */
    128 #define	UBS_PKTCTX_INBOUND	0x4000		/* inbound packet */
    129 #define	UBS_PKTCTX_AUTH		0x3000		/* authentication mask */
    130 #define	UBS_PKTCTX_AUTH_NONE	0x0000		/* no authentication */
    131 #define	UBS_PKTCTX_AUTH_MD5	0x1000		/* use hmac-md5 */
    132 #define	UBS_PKTCTX_AUTH_SHA1	0x2000		/* use hmac-sha1 */
    133 
    134 /* "Long" cryptographic operations on newer chipsets */
    135 #define	UBS_PKTCTX_TYPE_IPSEC_3DES	0x0000
    136 #define	UBS_PKTCTX_TYPE_IPSEC_AES	0x0040
    137 
    138 struct ubsec_pktctx_hdr {
    139 	volatile u_int16_t	ph_len;		/* length of ctx struct */
    140 	volatile u_int16_t	ph_type;	/* context type, 0 */
    141 	volatile u_int16_t	ph_flags;	/* flags, same as above */
    142 	volatile u_int16_t	ph_offset;	/* crypto/auth offset */
    143 };
    144 
    145 /* Long version of DES/3DES */
    146 struct ubsec_pktctx_3des {
    147 	struct ubsec_pktctx_hdr	pc_hdr;		/* Common header */
    148 	volatile u_int32_t	pc_deskey[6];	/* 3DES key */
    149 	volatile u_int32_t	pc_iv[2];	/* [3]DES iv */
    150 	volatile u_int32_t	pc_hminner[5];	/* hmac inner state */
    151 	volatile u_int32_t	pc_hmouter[5];	/* hmac outer state */
    152 };
    153 
    154 /* AES uses different structures for each supported key size */
    155 struct ubsec_pktctx_aes128 {
    156 	struct ubsec_pktctx_hdr	pc_hdr;		/* Common header */
    157 	volatile u_int32_t	pc_aeskey[4];	/* AES128 key */
    158 	volatile u_int32_t	pc_iv[4];	/* AES iv/ucv */
    159 	volatile u_int32_t	pc_hminner[5];	/* hmac inner state */
    160 	volatile u_int32_t	pc_hmouter[5];	/* hmac outer state */
    161 };
    162 
    163 struct ubsec_pktctx_aes192 {
    164 	struct ubsec_pktctx_hdr	pc_hdr;		/* Common header */
    165 	volatile u_int32_t	pc_aeskey[6];	/* AES192 key */
    166 	volatile u_int32_t	pc_iv[4];	/* AES iv/icv */
    167 	volatile u_int32_t	pc_hminner[5];	/* hmac inner state */
    168 	volatile u_int32_t	pc_hmouter[5];	/* hmac outer state */
    169 };
    170 
    171 struct ubsec_pktctx_aes256 {
    172 	struct ubsec_pktctx_hdr	pc_hdr;		/* Common header */
    173 	volatile u_int32_t	pc_aeskey[8];	/* AES256 key */
    174 	volatile u_int32_t	pc_iv[4];	/* AES iv/icv */
    175 	volatile u_int32_t	pc_hminner[5];	/* hmac inner state */
    176 	volatile u_int32_t	pc_hmouter[5];	/* hmac outer state */
    177 };
    178 #define UBS_PKTCTX_ENC_AES	0x8000		/* use aes */
    179 #define UBS_PKTCTX_MODE_CBC	0x0000		/* Cipher Block Chaining mode */
    180 #define UBS_PKTCTX_MODE_CTR	0x0400		/* Counter mode */
    181 #define UBS_PKTCTX_KEYSIZE_128	0x0000		/* AES128 */
    182 #define UBS_PKTCTX_KEYSIZE_192	0x0100		/* AES192 */
    183 #define UBS_PKTCTX_KEYSIZE_256	0x0200		/* AES256 */
    184 
    185 struct ubsec_pktbuf {
    186 	volatile u_int32_t	pb_addr;	/* address of buffer start */
    187 	volatile u_int32_t	pb_next;	/* pointer to next pktbuf */
    188 	volatile u_int32_t	pb_len;		/* packet length */
    189 };
    190 #define	UBS_PKTBUF_LEN		0x0000ffff	/* length mask */
    191 
    192 struct ubsec_mcr {
    193 	volatile u_int16_t	mcr_pkts;	/* #pkts in this mcr */
    194 	volatile u_int16_t	mcr_flags;	/* mcr flags (below) */
    195 	volatile u_int32_t	mcr_cmdctxp;	/* command ctx pointer */
    196 	struct ubsec_pktbuf	mcr_ipktbuf;	/* input chain header */
    197 	volatile u_int16_t	mcr_reserved;
    198 	volatile u_int16_t	mcr_pktlen;
    199 	struct ubsec_pktbuf	mcr_opktbuf;	/* output chain header */
    200 };
    201 
    202 struct ubsec_mcr_add {
    203 	volatile u_int32_t	mcr_cmdctxp;	/* command ctx pointer */
    204 	struct ubsec_pktbuf	mcr_ipktbuf;	/* input chain header */
    205 	volatile u_int16_t	mcr_reserved;
    206 	volatile u_int16_t	mcr_pktlen;
    207 	struct ubsec_pktbuf	mcr_opktbuf;	/* output chain header */
    208 };
    209 
    210 #define	UBS_MCR_DONE		0x0001		/* mcr has been processed */
    211 #define	UBS_MCR_ERROR		0x0002		/* error in processing */
    212 #define	UBS_MCR_ERRORCODE	0xff00		/* error type */
    213 
    214 struct ubsec_ctx_keyop {
    215 	volatile u_int16_t	ctx_len;	/* command length */
    216 	volatile u_int16_t	ctx_op;		/* operation code */
    217 	volatile u_int8_t	ctx_pad[60];	/* padding */
    218 };
    219 #define	UBS_CTXOP_DHPKGEN	0x01		/* dh public key generation */
    220 #define	UBS_CTXOP_DHSSGEN	0x02		/* dh shared secret gen. */
    221 #define	UBS_CTXOP_RSAPUB	0x03		/* rsa public key op */
    222 #define	UBS_CTXOP_RSAPRIV	0x04		/* rsa private key op */
    223 #define	UBS_CTXOP_DSASIGN	0x05		/* dsa signing op */
    224 #define	UBS_CTXOP_DSAVRFY	0x06		/* dsa verification */
    225 #define	UBS_CTXOP_RNGBYPASS	0x41		/* rng direct test mode */
    226 #define	UBS_CTXOP_RNGSHA1	0x42		/* rng sha1 test mode */
    227 #define	UBS_CTXOP_MODADD	0x43		/* modular addition */
    228 #define	UBS_CTXOP_MODSUB	0x44		/* modular subtraction */
    229 #define	UBS_CTXOP_MODMUL	0x45		/* modular multiplication */
    230 #define	UBS_CTXOP_MODRED	0x46		/* modular reduction */
    231 #define	UBS_CTXOP_MODEXP	0x47		/* modular exponentiation */
    232 #define	UBS_CTXOP_MODINV	0x48		/* modular inverse */
    233 
    234 struct ubsec_ctx_rngbypass {
    235 	volatile u_int16_t	rbp_len;	/* command length, 64 */
    236 	volatile u_int16_t	rbp_op;		/* rng bypass, 0x41 */
    237 	volatile u_int8_t	rbp_pad[60];	/* padding */
    238 };
    239 
    240 /* modexp: C = (M ^ E) mod N */
    241 struct ubsec_ctx_modexp {
    242 	volatile u_int16_t	me_len;		/* command length */
    243 	volatile u_int16_t	me_op;		/* modexp, 0x47 */
    244 	volatile u_int16_t	me_E_len;	/* E (bits) */
    245 	volatile u_int16_t	me_N_len;	/* N (bits) */
    246 	u_int8_t		me_N[2048/8];	/* N */
    247 };
    248 
    249 struct ubsec_ctx_rsapriv {
    250 	volatile u_int16_t	rpr_len;	/* command length */
    251 	volatile u_int16_t	rpr_op;		/* rsaprivate, 0x04 */
    252 	volatile u_int16_t	rpr_q_len;	/* q (bits) */
    253 	volatile u_int16_t	rpr_p_len;	/* p (bits) */
    254 	u_int8_t		rpr_buf[5 * 1024 / 8];	/* parameters: */
    255 						/* p, q, dp, dq, pinv */
    256 };
    257 
    258 #endif	/* _DEV_PCI_UBSECREG_H */
    259