Searched refs:CRC (Results 1 – 25 of 98) sorted by relevance
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2 Brief tutorial on CRC computation5 A CRC is a long-division remainder. You add the CRC to the message,6 and the whole thing (message+CRC) is a multiple of the given7 CRC polynomial. To check the CRC, you can either check that the8 CRC matches the recomputed value, *or* you can check that the9 remainder computed on the message+CRC is 0. This latter approach11 protocols put the end-of-frame flag after the CRC.21 To produce a 32-bit CRC, the divisor is actually a 33-bit CRC polynomial.23 CRC is written in hex with the most significant bit omitted. (If you're26 Note that a CRC is computed over a string of *bits*, so you have[all …]
3 # Kconfig for the kernel's cyclic redundancy check (CRC) library code32 The CRC-CCITT library functions. Select this if your module uses any38 The CRC-ITU-T library functions. Select this if your module uses44 The CRC-T10DIF library functions. Select this if your module uses89 bool "Enable optimized CRC implementations" if EXPERT94 architecture-optimized implementations of any CRC variants that are95 enabled. CRC checksumming performance may get much slower.101 tristate "KUnit tests for CRC functions" if !KUNIT_ALL_TESTS110 Unit tests for the CRC library functions.116 bool "Benchmark for the CRC functions"[all …]
19 (5) Padding shall be inserted as needed so that the Header CRC,20 Header response, Footer CRC, Footer response are always in36 + | | | pad | WR HDR CRC |41 + 0 | 1 | | pad | WR Data CRC |46 + 0 | 1 | | pad | RD HDR CRC |64 + | | | pad | RD Data CRC |
84 (1) A CRC on the 7-byte header. This CRC helps the Peripheral Device88 (2) A CRC on the data block (header excluded). This CRC is99 (2) Nak (CRC failure)117 + C | HEADER CRC |128 + | DATA CRC |211 computation of CRC and handling of responses is handled in helpers and
74 Each frame structure is followed by a CRC over this structure. The CRC over77 its own CRC (over all payload bytes). If the payload is not present (i.e.78 the frame has ``LEN=0``), the CRC of the payload is still present and will80 equals the number of bytes between the CRC of the frame and the CRC of the98 CRC) and, if specified in the frame (i.e. ``LEN > 0``), payload bytes,99 followed finally, regardless if the payload is present, the payload CRC. The141 |DATA_NSQ|-type frame, followed by its CRC, payload, and payload CRC. In147 error, e.g. an invalid CRC, the receiving party responds with a message165 tx: -- SYN FRAME(D) CRC(F) PAYLOAD CRC(P) -----------------------------166 rx: ------------------------------------- SYN FRAME(A) CRC(F) CRC(P) --[all …]
49 ## ISCSI CRC 32 Implementation with crc32 and pclmulqdq Instruction52 # regular CRC code that does not interleave the CRC instructions.115 ## 3) CRC each of three lanes:
242 .set CRC, %edi define244 .set CRC, %rdi define254 .set CRC, %eax define286 _cond_vex movd, CRC, %xmm0288 _cond_vex movq, CRC, %xmm0
53 此外，SCSI 与 SATA 规范要求的16位 CRC 校验在软件中计算代价较高。基准测试发56 时会转换为16位 CRC，读取时则相反。这允许 Linux 或应用程序以极低的开销生成59 IP 校验在检测位错误方面比 CRC 弱，但关键在于数据缓冲区与完整性元数据缓冲区
53 bool "S3C2410 PM Suspend Memory CRC"66 int "S3C2410 PM Suspend CRC Chunksize (KiB)"70 Set the chunksize in Kilobytes of the CRC for checking memory72 the CRC data block will take more memory, but will identify any
21 == 2`) and protected with CRC+sequence numbers.47 * ``false`` – skip CRC (faster)131 and are themselves crash-safe (CRC).148 CRC verification153 validate the CRC before copying to the caller.
1287 static void updateCRC(int *CRC, int bit) in updateCRC() argument1301 CRC[j] = CRC[j-1]; in updateCRC()1302 CRC[0] = 0; in updateCRC()1305 if (bit ^ CRC[32]) in updateCRC()1307 CRC[j] ^= poly[j]; in updateCRC()1321 int CRC[33]={1}; /* CRC register, 1 word/bit + extra control bit */ in BuildLAF() local1326 CRC[32]=0; in BuildLAF()1330 updateCRC(CRC, (adr[byte] >> i) & 1); in BuildLAF()1334 hashcode = (hashcode << 1) + CRC[i]; in BuildLAF()
121 Linux中的CRC和数学函数131 CRC函数134 *译注：CRC，Cyclic Redundancy Check，循环冗余校验*
164 received. This count does not include any error packets such as CRC errors,169 an integral number of bytes in length and do not pass the CRC test as the frame174 integral number of bytes in length and do not pass the CRC test as the frame is280 octets, and had either a bad CRC with an integral number of octets (CRC Error)281 or a bad CRC with a non-integral number of octets (Alignment Error).285 in length and had either a bad CRC with an integral number of octets (CRC286 error) or a bad CRC with a non-integral number of octets (Alignment Error).
20 Support is provided through the sysfs files "eeprom" and "pio". CRC checking31 to the EEPROM of the DS28E04. If CRC checking mode is enabled only
43 Internally when this file is read, the additional CRC byte is also obtained51 Internally when this file is read, the additional CRC byte is also obtained
77 no_chk_data_crc (*) 跳过数据节点的 CRC 校验以提高读取性能。 仅在闪存80 chk_data_crc 强制校验数据节点的 CRC
87 hence a 32 bit CRC is more than sufficient to detect multi-bit errors in176 whether CRC validating is necessary. If it is, the CRC32c is calculated and184 modification made to the object, After this, we calculate the CRC and insert it196 __be32 crc; /* CRC, not logged */240 The code ensures that the CRC is only checked if the filesystem has CRCs enabled241 by checking the superblock of the feature bit, and then if the CRC verifies OK327 update the LSN field (when it was last modified) and calculate the CRC on the333 Inodes and dquots are special snowflakes. They have per-object CRC and336 verification and CRC calculations. The per-buffer verifiers simply perform basic338 there are magic numbers in all the expected spots. All further CRC and[all …]
12 BIT(0) 0: No CRC error13 1: CRC error
53 * reconfig CRC error - CRC error detected by
20 crc_err_cnt: (RO) total CRC err count for all ports on this44 crc_err_cnt: (RO) total CRC err count for all ports on this80 crc_err_cnt: (RO) CRC err count on this port.
23 2) b16_crc_dllp - 16b CRC error injection of ACK/NAK DLLP24 3) b16_crc_upd_fc - 16b CRC error injection of Update-FC DLLP107 11) Margin CRC and Parity Error
29 | Package Header CRC |192 Package Header CRC195 Following the component information is a short 4-byte CRC calculated over
57 * If a CRC validation fails, a soft reset command is sent, which resets65 set it to true to enable CRC validation of the readings (default to false).
118 .CRC = 0,143 .CRC = 0,168 .CRC = 0,193 .CRC = 0,
392 as a simple ABI consistency check. A CRC value of the full prototype394 CRC values contained in the kernel are compared with similar values in407 corresponding CRC value is also stored.411 <CRC> <Symbol> <Module> <Export Type> <Namespace>418 For a kernel build without CONFIG_MODVERSIONS enabled, the CRC424 2) It lists the CRC if CONFIG_MODVERSIONS is enabled.437 CRC stored in the __versions section of the importing module. This