diff options
Diffstat (limited to 'target/linux/generic/files/crypto/ocf/hifn/hifn7751var.h')
| -rw-r--r-- | target/linux/generic/files/crypto/ocf/hifn/hifn7751var.h | 368 |
1 files changed, 0 insertions, 368 deletions
diff --git a/target/linux/generic/files/crypto/ocf/hifn/hifn7751var.h b/target/linux/generic/files/crypto/ocf/hifn/hifn7751var.h deleted file mode 100644 index c5d30f962a..0000000000 --- a/target/linux/generic/files/crypto/ocf/hifn/hifn7751var.h +++ /dev/null @@ -1,368 +0,0 @@ -/* $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; -}; - -#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__ */ |