diff options
Diffstat (limited to 'drivers/bus/dpaa/include/fsl_fman_crc64.h')
| -rw-r--r-- | drivers/bus/dpaa/include/fsl_fman_crc64.h | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/drivers/bus/dpaa/include/fsl_fman_crc64.h b/drivers/bus/dpaa/include/fsl_fman_crc64.h new file mode 100644 index 00000000..af5803f3 --- /dev/null +++ b/drivers/bus/dpaa/include/fsl_fman_crc64.h @@ -0,0 +1,263 @@ +/*- + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * BSD LICENSE + * + * Copyright 2011 Freescale Semiconductor, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * 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. + * * Neither the name of the above-listed copyright holders nor the + * names of any contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * GPL LICENSE SUMMARY + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT HOLDERS OR CONTRIBUTORS 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. + */ + +#ifndef __FSL_FMAN_CRC64_H +#define __FSL_FMAN_CRC64_H + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * This following definitions provide a software implementation of the CRC64 + * algorithm implemented within Fman. + * + * The following example shows how to compute a CRC64 hash value based on + * SRC_IP, DST_IP and ESP_SPI values + * + * #define compute_hash(saddr,daddr,spi) \ + * do { \ + * uint64_t result; \ + * result = fman_crc64_init(); \ + * result = fman_crc64_compute_32bit(saddr, result); \ + * result = fman_crc64_compute_32bit(daddr, result); \ + * result = fman_crc64_compute_32bit(spi, result); \ + * return (uint32_t) result & RC_HASH_MASK; \ + * } while (0); + * + * If hashing over a different number of fields (or of different types) is + * required, this can be implemented using the following primitives. + */ + +/* The following table provides the constants used by the Fman CRC64 + * implementation. The table is instantiated within the DPAA fman driver. + * However if the application is not going to be linked against the DPAA fman + * driver but will use this Fman CRC64 implementation, then it will need to + * instantiate this table by using the DECLARE_FMAN_CRC64_TABLE() macro. + */ +struct fman_crc64_t { + uint64_t initial; + uint64_t table[1 << 8]; +}; +extern struct fman_crc64_t FMAN_CRC64_ECMA_182; +#define DECLARE_FMAN_CRC64_TABLE() \ +struct fman_crc64_t FMAN_CRC64_ECMA_182 = { \ + 0xFFFFFFFFFFFFFFFFULL, \ + { \ + 0x0000000000000000ULL, 0xb32e4cbe03a75f6fULL, \ + 0xf4843657a840a05bULL, 0x47aa7ae9abe7ff34ULL, \ + 0x7bd0c384ff8f5e33ULL, 0xc8fe8f3afc28015cULL, \ + 0x8f54f5d357cffe68ULL, 0x3c7ab96d5468a107ULL, \ + 0xf7a18709ff1ebc66ULL, 0x448fcbb7fcb9e309ULL, \ + 0x0325b15e575e1c3dULL, 0xb00bfde054f94352ULL, \ + 0x8c71448d0091e255ULL, 0x3f5f08330336bd3aULL, \ + 0x78f572daa8d1420eULL, 0xcbdb3e64ab761d61ULL, \ + 0x7d9ba13851336649ULL, 0xceb5ed8652943926ULL, \ + 0x891f976ff973c612ULL, 0x3a31dbd1fad4997dULL, \ + 0x064b62bcaebc387aULL, 0xb5652e02ad1b6715ULL, \ + 0xf2cf54eb06fc9821ULL, 0x41e11855055bc74eULL, \ + 0x8a3a2631ae2dda2fULL, 0x39146a8fad8a8540ULL, \ + 0x7ebe1066066d7a74ULL, 0xcd905cd805ca251bULL, \ + 0xf1eae5b551a2841cULL, 0x42c4a90b5205db73ULL, \ + 0x056ed3e2f9e22447ULL, 0xb6409f5cfa457b28ULL, \ + 0xfb374270a266cc92ULL, 0x48190ecea1c193fdULL, \ + 0x0fb374270a266cc9ULL, 0xbc9d3899098133a6ULL, \ + 0x80e781f45de992a1ULL, 0x33c9cd4a5e4ecdceULL, \ + 0x7463b7a3f5a932faULL, 0xc74dfb1df60e6d95ULL, \ + 0x0c96c5795d7870f4ULL, 0xbfb889c75edf2f9bULL, \ + 0xf812f32ef538d0afULL, 0x4b3cbf90f69f8fc0ULL, \ + 0x774606fda2f72ec7ULL, 0xc4684a43a15071a8ULL, \ + 0x83c230aa0ab78e9cULL, 0x30ec7c140910d1f3ULL, \ + 0x86ace348f355aadbULL, 0x3582aff6f0f2f5b4ULL, \ + 0x7228d51f5b150a80ULL, 0xc10699a158b255efULL, \ + 0xfd7c20cc0cdaf4e8ULL, 0x4e526c720f7dab87ULL, \ + 0x09f8169ba49a54b3ULL, 0xbad65a25a73d0bdcULL, \ + 0x710d64410c4b16bdULL, 0xc22328ff0fec49d2ULL, \ + 0x85895216a40bb6e6ULL, 0x36a71ea8a7ace989ULL, \ + 0x0adda7c5f3c4488eULL, 0xb9f3eb7bf06317e1ULL, \ + 0xfe5991925b84e8d5ULL, 0x4d77dd2c5823b7baULL, \ + 0x64b62bcaebc387a1ULL, 0xd7986774e864d8ceULL, \ + 0x90321d9d438327faULL, 0x231c512340247895ULL, \ + 0x1f66e84e144cd992ULL, 0xac48a4f017eb86fdULL, \ + 0xebe2de19bc0c79c9ULL, 0x58cc92a7bfab26a6ULL, \ + 0x9317acc314dd3bc7ULL, 0x2039e07d177a64a8ULL, \ + 0x67939a94bc9d9b9cULL, 0xd4bdd62abf3ac4f3ULL, \ + 0xe8c76f47eb5265f4ULL, 0x5be923f9e8f53a9bULL, \ + 0x1c4359104312c5afULL, 0xaf6d15ae40b59ac0ULL, \ + 0x192d8af2baf0e1e8ULL, 0xaa03c64cb957be87ULL, \ + 0xeda9bca512b041b3ULL, 0x5e87f01b11171edcULL, \ + 0x62fd4976457fbfdbULL, 0xd1d305c846d8e0b4ULL, \ + 0x96797f21ed3f1f80ULL, 0x2557339fee9840efULL, \ + 0xee8c0dfb45ee5d8eULL, 0x5da24145464902e1ULL, \ + 0x1a083bacedaefdd5ULL, 0xa9267712ee09a2baULL, \ + 0x955cce7fba6103bdULL, 0x267282c1b9c65cd2ULL, \ + 0x61d8f8281221a3e6ULL, 0xd2f6b4961186fc89ULL, \ + 0x9f8169ba49a54b33ULL, 0x2caf25044a02145cULL, \ + 0x6b055fede1e5eb68ULL, 0xd82b1353e242b407ULL, \ + 0xe451aa3eb62a1500ULL, 0x577fe680b58d4a6fULL, \ + 0x10d59c691e6ab55bULL, 0xa3fbd0d71dcdea34ULL, \ + 0x6820eeb3b6bbf755ULL, 0xdb0ea20db51ca83aULL, \ + 0x9ca4d8e41efb570eULL, 0x2f8a945a1d5c0861ULL, \ + 0x13f02d374934a966ULL, 0xa0de61894a93f609ULL, \ + 0xe7741b60e174093dULL, 0x545a57dee2d35652ULL, \ + 0xe21ac88218962d7aULL, 0x5134843c1b317215ULL, \ + 0x169efed5b0d68d21ULL, 0xa5b0b26bb371d24eULL, \ + 0x99ca0b06e7197349ULL, 0x2ae447b8e4be2c26ULL, \ + 0x6d4e3d514f59d312ULL, 0xde6071ef4cfe8c7dULL, \ + 0x15bb4f8be788911cULL, 0xa6950335e42fce73ULL, \ + 0xe13f79dc4fc83147ULL, 0x521135624c6f6e28ULL, \ + 0x6e6b8c0f1807cf2fULL, 0xdd45c0b11ba09040ULL, \ + 0x9aefba58b0476f74ULL, 0x29c1f6e6b3e0301bULL, \ + 0xc96c5795d7870f42ULL, 0x7a421b2bd420502dULL, \ + 0x3de861c27fc7af19ULL, 0x8ec62d7c7c60f076ULL, \ + 0xb2bc941128085171ULL, 0x0192d8af2baf0e1eULL, \ + 0x4638a2468048f12aULL, 0xf516eef883efae45ULL, \ + 0x3ecdd09c2899b324ULL, 0x8de39c222b3eec4bULL, \ + 0xca49e6cb80d9137fULL, 0x7967aa75837e4c10ULL, \ + 0x451d1318d716ed17ULL, 0xf6335fa6d4b1b278ULL, \ + 0xb199254f7f564d4cULL, 0x02b769f17cf11223ULL, \ + 0xb4f7f6ad86b4690bULL, 0x07d9ba1385133664ULL, \ + 0x4073c0fa2ef4c950ULL, 0xf35d8c442d53963fULL, \ + 0xcf273529793b3738ULL, 0x7c0979977a9c6857ULL, \ + 0x3ba3037ed17b9763ULL, 0x888d4fc0d2dcc80cULL, \ + 0x435671a479aad56dULL, 0xf0783d1a7a0d8a02ULL, \ + 0xb7d247f3d1ea7536ULL, 0x04fc0b4dd24d2a59ULL, \ + 0x3886b22086258b5eULL, 0x8ba8fe9e8582d431ULL, \ + 0xcc0284772e652b05ULL, 0x7f2cc8c92dc2746aULL, \ + 0x325b15e575e1c3d0ULL, 0x8175595b76469cbfULL, \ + 0xc6df23b2dda1638bULL, 0x75f16f0cde063ce4ULL, \ + 0x498bd6618a6e9de3ULL, 0xfaa59adf89c9c28cULL, \ + 0xbd0fe036222e3db8ULL, 0x0e21ac88218962d7ULL, \ + 0xc5fa92ec8aff7fb6ULL, 0x76d4de52895820d9ULL, \ + 0x317ea4bb22bfdfedULL, 0x8250e80521188082ULL, \ + 0xbe2a516875702185ULL, 0x0d041dd676d77eeaULL, \ + 0x4aae673fdd3081deULL, 0xf9802b81de97deb1ULL, \ + 0x4fc0b4dd24d2a599ULL, 0xfceef8632775faf6ULL, \ + 0xbb44828a8c9205c2ULL, 0x086ace348f355aadULL, \ + 0x34107759db5dfbaaULL, 0x873e3be7d8faa4c5ULL, \ + 0xc094410e731d5bf1ULL, 0x73ba0db070ba049eULL, \ + 0xb86133d4dbcc19ffULL, 0x0b4f7f6ad86b4690ULL, \ + 0x4ce50583738cb9a4ULL, 0xffcb493d702be6cbULL, \ + 0xc3b1f050244347ccULL, 0x709fbcee27e418a3ULL, \ + 0x3735c6078c03e797ULL, 0x841b8ab98fa4b8f8ULL, \ + 0xadda7c5f3c4488e3ULL, 0x1ef430e13fe3d78cULL, \ + 0x595e4a08940428b8ULL, 0xea7006b697a377d7ULL, \ + 0xd60abfdbc3cbd6d0ULL, 0x6524f365c06c89bfULL, \ + 0x228e898c6b8b768bULL, 0x91a0c532682c29e4ULL, \ + 0x5a7bfb56c35a3485ULL, 0xe955b7e8c0fd6beaULL, \ + 0xaeffcd016b1a94deULL, 0x1dd181bf68bdcbb1ULL, \ + 0x21ab38d23cd56ab6ULL, 0x9285746c3f7235d9ULL, \ + 0xd52f0e859495caedULL, 0x6601423b97329582ULL, \ + 0xd041dd676d77eeaaULL, 0x636f91d96ed0b1c5ULL, \ + 0x24c5eb30c5374ef1ULL, 0x97eba78ec690119eULL, \ + 0xab911ee392f8b099ULL, 0x18bf525d915feff6ULL, \ + 0x5f1528b43ab810c2ULL, 0xec3b640a391f4fadULL, \ + 0x27e05a6e926952ccULL, 0x94ce16d091ce0da3ULL, \ + 0xd3646c393a29f297ULL, 0x604a2087398eadf8ULL, \ + 0x5c3099ea6de60cffULL, 0xef1ed5546e415390ULL, \ + 0xa8b4afbdc5a6aca4ULL, 0x1b9ae303c601f3cbULL, \ + 0x56ed3e2f9e224471ULL, 0xe5c372919d851b1eULL, \ + 0xa26908783662e42aULL, 0x114744c635c5bb45ULL, \ + 0x2d3dfdab61ad1a42ULL, 0x9e13b115620a452dULL, \ + 0xd9b9cbfcc9edba19ULL, 0x6a978742ca4ae576ULL, \ + 0xa14cb926613cf817ULL, 0x1262f598629ba778ULL, \ + 0x55c88f71c97c584cULL, 0xe6e6c3cfcadb0723ULL, \ + 0xda9c7aa29eb3a624ULL, 0x69b2361c9d14f94bULL, \ + 0x2e184cf536f3067fULL, 0x9d36004b35545910ULL, \ + 0x2b769f17cf112238ULL, 0x9858d3a9ccb67d57ULL, \ + 0xdff2a94067518263ULL, 0x6cdce5fe64f6dd0cULL, \ + 0x50a65c93309e7c0bULL, 0xe388102d33392364ULL, \ + 0xa4226ac498dedc50ULL, 0x170c267a9b79833fULL, \ + 0xdcd7181e300f9e5eULL, 0x6ff954a033a8c131ULL, \ + 0x28532e49984f3e05ULL, 0x9b7d62f79be8616aULL, \ + 0xa707db9acf80c06dULL, 0x14299724cc279f02ULL, \ + 0x5383edcd67c06036ULL, 0xe0ada17364673f59ULL} \ +} + +/* + * Return the initial CRC seed. Use the value returned from this API as the + * "crc" parameter to the first call to add data. + */ +static inline uint64_t fman_crc64_init(void) +{ + return FMAN_CRC64_ECMA_182.initial; +} + +/* Updates the CRC with arbitrary data */ +static inline uint64_t fman_crc64_update(uint64_t crc, + void *data, unsigned int len) +{ + uint8_t *p = data; + while (len--) + crc = FMAN_CRC64_ECMA_182.table[(crc ^ *(p++)) & 0xff] ^ + (crc >> 8); + return crc; +} + +/* Shorthands for updating the CRC with 8/16/32 bits of data. + * IMPORTANT NOTE: the typed "data" arguments should not be mistaken for + * host-endian numerical values, the assumption is that these values contain + * big-endian (ie. network byte order) data. + */ +static inline uint64_t fman_crc64_compute_32bit(uint32_t data, uint64_t crc) +{ + return fman_crc64_update(crc, &data, sizeof(data)); +} +static inline uint64_t fman_crc64_compute_16bit(uint16_t data, uint64_t crc) +{ + return fman_crc64_update(crc, &data, sizeof(data)); +} +static inline uint64_t fman_crc64_compute_8bit(uint8_t data, uint64_t crc) +{ + return fman_crc64_update(crc, &data, sizeof(data)); +} + +/* + * Finalise the CRC (using 2's complement) + */ +static inline uint64_t fman_crc64_finish(uint64_t seed) +{ + return ~seed; +} + +#ifdef __cplusplus +} +#endif + +#endif /* __FSL_FMAN_CRC64_H */ |