+++ /dev/null
-/* $FreeBSD: src/sys/dev/hifn/hifn7751var.h,v 1.9 2007/03/21 03:42:49 sam Exp $ */
-/* $OpenBSD: hifn7751var.h,v 1.42 2002/04/08 17:49:42 jason Exp $ */
-
-/*-
- * Invertex AEON / Hifn 7751 driver
- * Copyright (c) 1999 Invertex Inc. All rights reserved.
- * Copyright (c) 1999 Theo de Raadt
- * Copyright (c) 2000-2001 Network Security Technologies, Inc.
- * http://www.netsec.net
- *
- * Please send any comments, feedback, bug-fixes, or feature requests to
- * software@invertex.com.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Effort sponsored in part by the Defense Advanced Research Projects
- * Agency (DARPA) and Air Force Research Laboratory, Air Force
- * Materiel Command, USAF, under agreement number F30602-01-2-0537.
- *
- */
-
-#ifndef __HIFN7751VAR_H__
-#define __HIFN7751VAR_H__
-
-#ifdef __KERNEL__
-
-/*
- * Some configurable values for the driver. By default command+result
- * descriptor rings are the same size. The src+dst descriptor rings
- * are sized at 3.5x the number of potential commands. Slower parts
- * (e.g. 7951) tend to run out of src descriptors; faster parts (7811)
- * src+cmd/result descriptors. It's not clear that increasing the size
- * of the descriptor rings helps performance significantly as other
- * factors tend to come into play (e.g. copying misaligned packets).
- */
-#define HIFN_D_CMD_RSIZE 24 /* command descriptors */
-#define HIFN_D_SRC_RSIZE ((HIFN_D_CMD_RSIZE * 7) / 2) /* source descriptors */
-#define HIFN_D_RES_RSIZE HIFN_D_CMD_RSIZE /* result descriptors */
-#define HIFN_D_DST_RSIZE HIFN_D_SRC_RSIZE /* destination descriptors */
-
-/*
- * Length values for cryptography
- */
-#define HIFN_DES_KEY_LENGTH 8
-#define HIFN_3DES_KEY_LENGTH 24
-#define HIFN_MAX_CRYPT_KEY_LENGTH HIFN_3DES_KEY_LENGTH
-#define HIFN_IV_LENGTH 8
-#define HIFN_AES_IV_LENGTH 16
-#define HIFN_MAX_IV_LENGTH HIFN_AES_IV_LENGTH
-
-/*
- * Length values for authentication
- */
-#define HIFN_MAC_KEY_LENGTH 64
-#define HIFN_MD5_LENGTH 16
-#define HIFN_SHA1_LENGTH 20
-#define HIFN_MAC_TRUNC_LENGTH 12
-
-#define MAX_SCATTER 64
-
-/*
- * Data structure to hold all 4 rings and any other ring related data.
- */
-struct hifn_dma {
- /*
- * Descriptor rings. We add +1 to the size to accomidate the
- * jump descriptor.
- */
- struct hifn_desc cmdr[HIFN_D_CMD_RSIZE+1];
- struct hifn_desc srcr[HIFN_D_SRC_RSIZE+1];
- struct hifn_desc dstr[HIFN_D_DST_RSIZE+1];
- struct hifn_desc resr[HIFN_D_RES_RSIZE+1];
-
- struct hifn_command *hifn_commands[HIFN_D_RES_RSIZE];
-
- u_char command_bufs[HIFN_D_CMD_RSIZE][HIFN_MAX_COMMAND];
- u_char result_bufs[HIFN_D_CMD_RSIZE][HIFN_MAX_RESULT];
- u_int32_t slop[HIFN_D_CMD_RSIZE];
-
- u_int64_t test_src, test_dst;
-
- /*
- * Our current positions for insertion and removal from the desriptor
- * rings.
- */
- int cmdi, srci, dsti, resi;
- volatile int cmdu, srcu, dstu, resu;
- int cmdk, srck, dstk, resk;
-};
-
-struct hifn_session {
- int hs_used;
- int hs_mlen;
- u_int8_t hs_iv[HIFN_MAX_IV_LENGTH];
-};
-
-#define HIFN_RING_SYNC(sc, r, i, f) \
- /* DAVIDM bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_dmamap, (f)) */
-
-#define HIFN_CMDR_SYNC(sc, i, f) HIFN_RING_SYNC((sc), cmdr, (i), (f))
-#define HIFN_RESR_SYNC(sc, i, f) HIFN_RING_SYNC((sc), resr, (i), (f))
-#define HIFN_SRCR_SYNC(sc, i, f) HIFN_RING_SYNC((sc), srcr, (i), (f))
-#define HIFN_DSTR_SYNC(sc, i, f) HIFN_RING_SYNC((sc), dstr, (i), (f))
-
-#define HIFN_CMD_SYNC(sc, i, f) \
- /* DAVIDM bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_dmamap, (f)) */
-
-#define HIFN_RES_SYNC(sc, i, f) \
- /* DAVIDM bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_dmamap, (f)) */
-
-typedef int bus_size_t;
-
-/*
- * Holds data specific to a single HIFN board.
- */
-struct hifn_softc {
- softc_device_decl sc_dev;
-
- struct pci_dev *sc_pcidev; /* PCI device pointer */
- spinlock_t sc_mtx; /* per-instance lock */
-
- int sc_num; /* for multiple devs */
-
- ocf_iomem_t sc_bar0;
- bus_size_t sc_bar0_lastreg;/* bar0 last reg written */
- ocf_iomem_t sc_bar1;
- bus_size_t sc_bar1_lastreg;/* bar1 last reg written */
-
- int sc_irq;
-
- u_int32_t sc_dmaier;
- u_int32_t sc_drammodel; /* 1=dram, 0=sram */
- u_int32_t sc_pllconfig; /* 7954/7955/7956 PLL config */
-
- struct hifn_dma *sc_dma;
- dma_addr_t sc_dma_physaddr;/* physical address of sc_dma */
-
- int sc_dmansegs;
- int32_t sc_cid;
- int sc_maxses;
- int sc_nsessions;
- struct hifn_session *sc_sessions;
- int sc_ramsize;
- int sc_flags;
-#define HIFN_HAS_RNG 0x1 /* includes random number generator */
-#define HIFN_HAS_PUBLIC 0x2 /* includes public key support */
-#define HIFN_HAS_AES 0x4 /* includes AES support */
-#define HIFN_IS_7811 0x8 /* Hifn 7811 part */
-#define HIFN_IS_7956 0x10 /* Hifn 7956/7955 don't have SDRAM */
-
- struct timer_list sc_tickto; /* for managing DMA */
-
- int sc_rngfirst;
- int sc_rnghz; /* RNG polling frequency */
-
- int sc_c_busy; /* command ring busy */
- int sc_s_busy; /* source data ring busy */
- int sc_d_busy; /* destination data ring busy */
- int sc_r_busy; /* result ring busy */
- int sc_active; /* for initial countdown */
- int sc_needwakeup; /* ops q'd wating on resources */
- int sc_curbatch; /* # ops submitted w/o int */
- int sc_suspended;
-#ifdef HIFN_VULCANDEV
- struct cdev *sc_pkdev;
-#endif
-};
-
-#define HIFN_LOCK(_sc) spin_lock_irqsave(&(_sc)->sc_mtx, l_flags)
-#define HIFN_UNLOCK(_sc) spin_unlock_irqrestore(&(_sc)->sc_mtx, l_flags)
-
-/*
- * hifn_command_t
- *
- * This is the control structure used to pass commands to hifn_encrypt().
- *
- * flags
- * -----
- * Flags is the bitwise "or" values for command configuration. A single
- * encrypt direction needs to be set:
- *
- * HIFN_ENCODE or HIFN_DECODE
- *
- * To use cryptography, a single crypto algorithm must be included:
- *
- * HIFN_CRYPT_3DES or HIFN_CRYPT_DES
- *
- * To use authentication is used, a single MAC algorithm must be included:
- *
- * HIFN_MAC_MD5 or HIFN_MAC_SHA1
- *
- * By default MD5 uses a 16 byte hash and SHA-1 uses a 20 byte hash.
- * If the value below is set, hash values are truncated or assumed
- * truncated to 12 bytes:
- *
- * HIFN_MAC_TRUNC
- *
- * Keys for encryption and authentication can be sent as part of a command,
- * or the last key value used with a particular session can be retrieved
- * and used again if either of these flags are not specified.
- *
- * HIFN_CRYPT_NEW_KEY, HIFN_MAC_NEW_KEY
- *
- * session_num
- * -----------
- * A number between 0 and 2048 (for DRAM models) or a number between
- * 0 and 768 (for SRAM models). Those who don't want to use session
- * numbers should leave value at zero and send a new crypt key and/or
- * new MAC key on every command. If you use session numbers and
- * don't send a key with a command, the last key sent for that same
- * session number will be used.
- *
- * Warning: Using session numbers and multiboard at the same time
- * is currently broken.
- *
- * mbuf
- * ----
- * Either fill in the mbuf pointer and npa=0 or
- * fill packp[] and packl[] and set npa to > 0
- *
- * mac_header_skip
- * ---------------
- * The number of bytes of the source_buf that are skipped over before
- * authentication begins. This must be a number between 0 and 2^16-1
- * and can be used by IPsec implementers to skip over IP headers.
- * *** Value ignored if authentication not used ***
- *
- * crypt_header_skip
- * -----------------
- * The number of bytes of the source_buf that are skipped over before
- * the cryptographic operation begins. This must be a number between 0
- * and 2^16-1. For IPsec, this number will always be 8 bytes larger
- * than the auth_header_skip (to skip over the ESP header).
- * *** Value ignored if cryptography not used ***
- *
- */
-struct hifn_operand {
- union {
- struct sk_buff *skb;
- struct uio *io;
- unsigned char *buf;
- } u;
- void *map;
- bus_size_t mapsize;
- int nsegs;
- struct {
- dma_addr_t ds_addr;
- int ds_len;
- } segs[MAX_SCATTER];
-};
-
-struct hifn_command {
- u_int16_t session_num;
- u_int16_t base_masks, cry_masks, mac_masks;
- u_int8_t iv[HIFN_MAX_IV_LENGTH], *ck, mac[HIFN_MAC_KEY_LENGTH];
- int cklen;
- int sloplen, slopidx;
-
- struct hifn_operand src;
- struct hifn_operand dst;
-
- struct hifn_softc *softc;
- struct cryptop *crp;
- struct cryptodesc *enccrd, *maccrd;
-};
-
-#define src_skb src.u.skb
-#define src_io src.u.io
-#define src_map src.map
-#define src_mapsize src.mapsize
-#define src_segs src.segs
-#define src_nsegs src.nsegs
-#define src_buf src.u.buf
-
-#define dst_skb dst.u.skb
-#define dst_io dst.u.io
-#define dst_map dst.map
-#define dst_mapsize dst.mapsize
-#define dst_segs dst.segs
-#define dst_nsegs dst.nsegs
-#define dst_buf dst.u.buf
-
-/*
- * Return values for hifn_crypto()
- */
-#define HIFN_CRYPTO_SUCCESS 0
-#define HIFN_CRYPTO_BAD_INPUT (-1)
-#define HIFN_CRYPTO_RINGS_FULL (-2)
-
-/**************************************************************************
- *
- * Function: hifn_crypto
- *
- * Purpose: Called by external drivers to begin an encryption on the
- * HIFN board.
- *
- * Blocking/Non-blocking Issues
- * ============================
- * The driver cannot block in hifn_crypto (no calls to tsleep) currently.
- * hifn_crypto() returns HIFN_CRYPTO_RINGS_FULL if there is not enough
- * room in any of the rings for the request to proceed.
- *
- * Return Values
- * =============
- * 0 for success, negative values on error
- *
- * Defines for negative error codes are:
- *
- * HIFN_CRYPTO_BAD_INPUT : The passed in command had invalid settings.
- * HIFN_CRYPTO_RINGS_FULL : All DMA rings were full and non-blocking
- * behaviour was requested.
- *
- *************************************************************************/
-
-/*
- * Convert back and forth from 'sid' to 'card' and 'session'
- */
-#define HIFN_CARD(sid) (((sid) & 0xf0000000) >> 28)
-#define HIFN_SESSION(sid) ((sid) & 0x000007ff)
-#define HIFN_SID(crd,ses) (((crd) << 28) | ((ses) & 0x7ff))
-
-#endif /* _KERNEL */
-
-struct hifn_stats {
- u_int64_t hst_ibytes;
- u_int64_t hst_obytes;
- u_int32_t hst_ipackets;
- u_int32_t hst_opackets;
- u_int32_t hst_invalid;
- u_int32_t hst_nomem; /* malloc or one of hst_nomem_* */
- u_int32_t hst_abort;
- u_int32_t hst_noirq; /* IRQ for no reason */
- u_int32_t hst_totbatch; /* ops submitted w/o interrupt */
- u_int32_t hst_maxbatch; /* max ops submitted together */
- u_int32_t hst_unaligned; /* unaligned src caused copy */
- /*
- * The following divides hst_nomem into more specific buckets.
- */
- u_int32_t hst_nomem_map; /* bus_dmamap_create failed */
- u_int32_t hst_nomem_load; /* bus_dmamap_load_* failed */
- u_int32_t hst_nomem_mbuf; /* MGET* failed */
- u_int32_t hst_nomem_mcl; /* MCLGET* failed */
- u_int32_t hst_nomem_cr; /* out of command/result descriptor */
- u_int32_t hst_nomem_sd; /* out of src/dst descriptors */
-};
-
-#endif /* __HIFN7751VAR_H__ */
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