>This table should be const, and is the same CRC32 as implemented alread> in lib/hash/rte_crc ?

Hi Stepen,

The table and CRC32 as implemented already in lib/hash/rte_crc are different.The table is calculated by build_crc8_table in app/test/test_atomic.c

Thanks




李晗晓
IT开发工程师
RCH八部/无线及算力研究院/无线及算力产品经营部
RCH Dept. VIII/Wireless and Computing Product R&D Institute/Wireless and Computing Product Operation Division
 
中兴通讯股份有限公司
天津市空港经济区东七道2号中兴产业基地8#楼, 邮编: 300300
T: +86 15531662716      
E: li.hanxiao@zte.com.cn
www.zte.com.cn




Original


From: StephenHemminger <stephen@networkplumber.org>
To: 李晗晓10332965;
Cc: dev@dpdk.org <dev@dpdk.org>;
Date: 2024年08月08日 23:22
Subject: Re: [PATCH 1/4] [v1,1/4] zsda: Introduce zsda device drivers

On Thu,  8 Aug 2024 16:50:11 +0800
Hanxiao Li <li.hanxiao@zte.com.cn> wrote:
 
> diff --git a/drivers/common/zsda/zsda_common.c b/drivers/common/zsda/zsda_common.c
> new file mode 100644
> index 0000000000..8f0849c660
> --- /dev/null
> +++ b/drivers/common/zsda/zsda_common.c
> @@ -0,0 +1,166 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2024 ZTE Corporation
> + */
> +
> +#include "zsda_common.h" 
> +#include "zsda_logs.h" 
> +
> +#include "bus_pci_driver.h" 
> +
> +#define MAGIC_SEND 0xab
> +#define MAGIC_RECV 0xcd
> +#define ADMIN_VER 1
> +
> +static uint8_t crc8_table[256] = {
> +    0x00, 0x41, 0x13, 0x52, 0x26, 0x67, 0x35, 0x74, 0x4c, 0x0d, 0x5f, 0x1e,
> +    0x6a, 0x2b, 0x79, 0x38, 0x09, 0x48, 0x1a, 0x5b, 0x2f, 0x6e, 0x3c, 0x7d,
> +    0x45, 0x04, 0x56, 0x17, 0x63, 0x22, 0x70, 0x31, 0x12, 0x53, 0x01, 0x40,
> +    0x34, 0x75, 0x27, 0x66, 0x5e, 0x1f, 0x4d, 0x0c, 0x78, 0x39, 0x6b, 0x2a,
> +    0x1b, 0x5a, 0x08, 0x49, 0x3d, 0x7c, 0x2e, 0x6f, 0x57, 0x16, 0x44, 0x05,
> +    0x71, 0x30, 0x62, 0x23, 0x24, 0x65, 0x37, 0x76, 0x02, 0x43, 0x11, 0x50,
> +    0x68, 0x29, 0x7b, 0x3a, 0x4e, 0x0f, 0x5d, 0x1c, 0x2d, 0x6c, 0x3e, 0x7f,
> +    0x0b, 0x4a, 0x18, 0x59, 0x61, 0x20, 0x72, 0x33, 0x47, 0x06, 0x54, 0x15,
> +    0x36, 0x77, 0x25, 0x64, 0x10, 0x51, 0x03, 0x42, 0x7a, 0x3b, 0x69, 0x28,
> +    0x5c, 0x1d, 0x4f, 0x0e, 0x3f, 0x7e, 0x2c, 0x6d, 0x19, 0x58, 0x0a, 0x4b,
> +    0x73, 0x32, 0x60, 0x21, 0x55, 0x14, 0x46, 0x07, 0x48, 0x09, 0x5b, 0x1a,
> +    0x6e, 0x2f, 0x7d, 0x3c, 0x04, 0x45, 0x17, 0x56, 0x22, 0x63, 0x31, 0x70,
> +    0x41, 0x00, 0x52, 0x13, 0x67, 0x26, 0x74, 0x35, 0x0d, 0x4c, 0x1e, 0x5f,
> +    0x2b, 0x6a, 0x38, 0x79, 0x5a, 0x1b, 0x49, 0x08, 0x7c, 0x3d, 0x6f, 0x2e,
> +    0x16, 0x57, 0x05, 0x44, 0x30, 0x71, 0x23, 0x62, 0x53, 0x12, 0x40, 0x01,
> +    0x75, 0x34, 0x66, 0x27, 0x1f, 0x5e, 0x0c, 0x4d, 0x39, 0x78, 0x2a, 0x6b,
> +    0x6c, 0x2d, 0x7f, 0x3e, 0x4a, 0x0b, 0x59, 0x18, 0x20, 0x61, 0x33, 0x72,
> +    0x06, 0x47, 0x15, 0x54, 0x65, 0x24, 0x76, 0x37, 0x43, 0x02, 0x50, 0x11,
> +    0x29, 0x68, 0x3a, 0x7b, 0x0f, 0x4e, 0x1c, 0x5d, 0x7e, 0x3f, 0x6d, 0x2c,
> +    0x58, 0x19, 0x4b, 0x0a, 0x32, 0x73, 0x21, 0x60, 0x14, 0x55, 0x07, 0x46,
> +    0x77, 0x36, 0x64, 0x25, 0x51, 0x10, 0x42, 0x03, 0x3b, 0x7a, 0x28, 0x69,
> +    0x1d, 0x5c, 0x0e, 0x4f};
> +
 
This table should be const, and is the same CRC32 as implemented alread
in lib/hash/rte_crc ?