| /linux/drivers/crypto/intel/qat/qat_common/ |
| H A D | adf_gen4_ras.h | 37 /* HI CPP Agent Command parity error log */
40 /* HI CPP Agent Command parity error logging enable */
43 /* RI Memory parity error status register */
46 /* RI Memory parity error reporting enable */
50 * RI Memory parity error mask
51 * BIT(0) - BIT(3) - ri_iosf_pdata_rxq[0:3] parity error
52 * BIT(4) - ri_tlq_phdr parity error
53 * BIT(5) - ri_tlq_pdata parity error
54 * BIT(6) - ri_tlq_nphdr parity error
55 * BIT(7) - ri_tlq_npdata parity error
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| /linux/Documentation/driver-api/mtd/ |
| H A D | nand_ecc.rst | 32 bytes. This is done by calculating several parity bits over the rows and
33 columns. The parity used is even parity which means that the parity bit = 1
34 if the data over which the parity is calculated is 1 and the parity bit = 0
35 if the data over which the parity is calculated is 0. So the total
36 number of bits over the data over which the parity is calculated + the
37 parity bit is even. (see wikipedia if you can't follow this).
38 Parity is often calculated by means of an exclusive or operation,
59 cp is my abbreviation for column parity, rp for row parity.
61 Let's start to explain column parity.
63 - cp0 is the parity that belongs to all bit0, bit2, bit4, bit6.
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| /linux/drivers/scsi/csiostor/ |
| H A D | csio_hw_t5.c | 75 { MSTGRPPERR_F, "Master Response Read Queue parity error", in csio_t5_pcie_intr_handler()
77 { MSTTIMEOUTPERR_F, "Master Timeout FIFO parity error", -1, 1 }, in csio_t5_pcie_intr_handler()
78 { MSIXSTIPERR_F, "MSI-X STI SRAM parity error", -1, 1 }, in csio_t5_pcie_intr_handler()
79 { MSIXADDRLPERR_F, "MSI-X AddrL parity error", -1, 1 }, in csio_t5_pcie_intr_handler()
80 { MSIXADDRHPERR_F, "MSI-X AddrH parity error", -1, 1 }, in csio_t5_pcie_intr_handler()
81 { MSIXDATAPERR_F, "MSI-X data parity error", -1, 1 }, in csio_t5_pcie_intr_handler()
82 { MSIXDIPERR_F, "MSI-X DI parity error", -1, 1 }, in csio_t5_pcie_intr_handler()
83 { PIOCPLGRPPERR_F, "PCI PIO completion Group FIFO parity error", in csio_t5_pcie_intr_handler()
85 { PIOREQGRPPERR_F, "PCI PIO request Group FIFO parity error", in csio_t5_pcie_intr_handler()
87 { TARTAGPERR_F, "PCI PCI target tag FIFO parity error", -1, 1 }, in csio_t5_pcie_intr_handler()
[all …]
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| /linux/Documentation/driver-api/md/ |
| H A D | raid5-ppl.rst | 2 Partial Parity Log
5 Partial Parity Log (PPL) is a feature available for RAID5 arrays. The issue
6 addressed by PPL is that after a dirty shutdown, parity of a particular stripe
8 in degraded state, there is no way to recalculate parity, because one of the
10 array or using it is as degraded - data calculated from parity for array blocks
15 Partial parity for a write operation is the XOR of stripe data chunks not
17 write hole. XORing partial parity with the modified chunks produces parity for
20 this stripe is missing, this updated parity can be used to recover its
26 When handling a write request PPL writes partial parity before new data and
27 parity are dispatched to disks. PPL is a distributed log - it is stored on
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| H A D | raid5-cache.rst | 27 and parity don't match. The reason is that a stripe write involves several RAID
53 write. For non-full-stripe writes, MD must read old data before the new parity
83 ID for recovery identification. Data can be IO data and parity data. Data is
91 write-through mode, MD calculates parity for IO data, writes both IO data and
92 parity to the log, writes the data and parity to RAID disks after the data and
93 parity is settled down in log and finally the IO is finished. Read just reads
99 MD will calculate parity for the data and write parity into the log. After this
100 is finished, MD will write both data and parity into RAID disks, then MD can
107 data and data. If MD finds a stripe with data and valid parities (1 parity for
|
| /linux/arch/mips/mm/ |
| H A D | cerr-sb1.c | 80 printk(" tag-parity"); in breakout_cerri()
82 printk(" data-parity"); in breakout_cerri()
255 /* Parity lookup table. */
256 static const uint8_t parity[256] = { variable
275 /* Masks to select bits for Hamming parity, mask_72_64[i] for bit[i] */
287 /* Calculate the parity on a range of bits */
290 char parity = 0; in range_parity() local
295 parity = !parity; in range_parity()
298 return parity; in range_parity()
301 /* Calculate the 4-bit even byte-parity for an instruction */
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| /linux/drivers/scsi/aic7xxx/aicasm/ |
| H A D | aicasm_insformat.h | 55 parity : 1; member
57 uint32_t parity : 1,
74 parity : 1; member
76 uint32_t parity : 1,
92 parity : 1; member
94 uint32_t parity : 1,
110 parity : 1; member
112 uint32_t parity : 1,
128 parity : 1; member
130 uint32_t parity : 1,
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| /linux/arch/powerpc/platforms/44x/ |
| H A D | machine_check.c | 45 printk("TLB Parity Error\n"); in machine_check_440A()
48 printk("I-Cache Parity Error\n"); in machine_check_440A()
51 printk("D-Cache Search Parity Error\n"); in machine_check_440A()
53 printk("D-Cache Flush Parity Error\n"); in machine_check_440A()
83 printk(KERN_ERR "TLB Parity Error\n"); in machine_check_47x()
86 printk(KERN_ERR "I-Cache Parity Error\n"); in machine_check_47x()
89 printk(KERN_ERR "D-Cache Search Parity Error\n"); in machine_check_47x()
91 printk(KERN_ERR "GPR Parity Error\n"); in machine_check_47x()
93 printk(KERN_ERR "FPR Parity Error\n"); in machine_check_47x()
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| /linux/Documentation/devicetree/bindings/serial/ |
| H A D | xlnx,opb-uartlite.yaml | 45 xlnx,use-parity:
49 Whether parity checking was enabled when the device was configured.
51 xlnx,odd-parity:
55 Whether odd parity was configured.
63 - xlnx,use-parity
69 xlnx,use-parity:
73 - xlnx,odd-parity
86 xlnx,use-parity = <0>;
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| /linux/arch/mips/include/asm/sgi/ |
| H A D | mc.h | 21 #define SGIMC_CCTRL0_EPERRGIO 0x00000020 /* GIO parity error enable */
22 #define SGIMC_CCTRL0_EPERRMEM 0x00000040 /* Main mem parity error enable */
23 #define SGIMC_CCTRL0_EPERRCPU 0x00000080 /* CPU bus parity error enable */
28 #define SGIMC_CCTRL0_EPERRSCMD 0x00001000 /* SysCMD bus parity error enable */
36 #define SGIMC_CCTRL0_R4KNOCHKPARR 0x04000000 /* Don't chk parity on mem data reads */
122 #define SGIMC_CSTAT_RD 0x00000100 /* read parity error */
123 #define SGIMC_CSTAT_PAR 0x00000200 /* CPU parity error */
125 #define SGIMC_CSTAT_SYSAD_PAR 0x00000800 /* sysad parity error */
126 #define SGIMC_CSTAT_SYSCMD_PAR 0x00001000 /* syscmd parity error */
128 #define SGIMC_CSTAT_PAR_MASK 0x00001f00 /* parity error mask */
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| /linux/drivers/usb/serial/ |
| H A D | keyspan_usa28msg.h | 48 If the port is configured for parity, the data will be an
49 alternating string of parity and data bytes, so the message
57 If there is no parity, the format is simply:
63 USB IN (USA28 -> host, receive) messages contain data and parity
64 if parity is configred, thusly:
70 If parity is not configured, the format is:
76 In the TX messages (USB OUT), the 0x01 bit of the PARity byte is
77 the parity bit. In the RX messages (USB IN), the PARity byte is
78 the content of the 8051's status register; the parity bit
112 u8 parity, // 1=use parity, 0=don't member
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| /linux/drivers/edac/ |
| H A D | edac_pci_sysfs.c | 20 static int check_pci_errors; /* default NO check PCI parity */
21 static int edac_pci_panic_on_pe; /* default NO panic on PCI Parity */
22 static int edac_pci_log_pe = 1; /* log PCI parity errors */
23 static int edac_pci_log_npe = 1; /* log PCI non-parity error errors */
238 /* Set of show/store abstract level functions for PCI Parity object */
283 /* PCI Parity control files */
514 /* Clear any PCI parity errors logged by this device. */
529 * PCI Parity polling
531 * Function to retrieve the current parity status
567 "Master Data Parity Error on %s\n", in edac_pci_dev_parity_test()
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| /linux/Documentation/core-api/ |
| H A D | librs.rst | 57 and stores the result in the parity buffer. Note that the parity buffer
74 /* Parity buffer. Size = number of roots */
76 /* Initialize the parity buffer */
78 /* Encode 512 byte in data8. Store parity in buffer par */
86 received parity symbols and corrects errors in the data.
107 /* Parity buffer. Size = number of roots */
113 /* Receive parity */
124 /* Parity buffer. Size = number of roots */
130 /* Receive parity */
141 Note: It's not necessary to give data and received parity to the
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| /linux/drivers/media/pci/mantis/ |
| H A D | mantis_uart.c | 31 enum mantis_parity parity; member
46 } parity[3] = { variable
71 dprintk(MANTIS_ERROR, 1, "UART parity error"); in mantis_uart_read()
114 mmwrite((mmread(MANTIS_UART_CTL) | (params->parity & 0x3)), MANTIS_UART_CTL); in mantis_uart_setup()
148 /* default parity: */ in mantis_uart_init()
150 params.parity = config->parity; in mantis_uart_init()
151 dprintk(MANTIS_INFO, 1, "Initializing UART @ %sbps parity:%s", in mantis_uart_init()
153 parity[params.parity].string); in mantis_uart_init()
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| /linux/drivers/net/ethernet/broadcom/bnx2x/ |
| H A D | bnx2x_reg.h | 38 /* [RW 5] Parity mask register #0 read/write */
40 /* [R 5] Parity register #0 read */
42 /* [RC 5] Parity register #0 read clear */
48 /* [RW 4] Parity mask register #0 read/write */
50 /* [R 4] Parity register #0 read */
52 /* [RC 4] Parity register #0 read clear */
192 /* [RW 27] Parity mask register #0 read/write */
194 /* [R 27] Parity register #0 read */
196 /* [RC 27] Parity register #0 read clear */
410 /* [RW 5] Parity mask register #0 read/write */
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| /linux/drivers/tty/serial/ |
| H A D | max3100.c | 93 int parity; /* keeps track if we should send parity */ member
124 int parity; in max3100_do_parity() local
126 if (s->parity & MAX3100_PARITY_ODD) in max3100_do_parity()
127 parity = 1; in max3100_do_parity()
129 parity = 0; in max3100_do_parity()
131 if (s->parity & MAX3100_7BIT) in max3100_do_parity()
136 parity = parity ^ (hweight8(c) & 1); in max3100_do_parity()
137 return parity; in max3100_do_parity()
147 if (s->parity & MAX3100_7BIT) in max3100_calc_parity()
152 if (s->parity & MAX3100_PARITY_ON) in max3100_calc_parity()
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| /linux/drivers/md/ |
| H A D | raid5.h | 31 * Empty -> Want - on read or write to get old data for parity calc
52 * from parity calculations, and a clean block that has been
53 * successfully written to the spare ( or to parity when resyncing).
55 * is set whenever a write is scheduled to the spare, or to the parity
77 * third list, the written list (bh_written). Once both the parity
133 * -updating the parity on a write operation (reconstruct write and
135 * -checking parity correctness
144 * 1/ Parity check operations destroy the in cache version of the parity block,
145 * so we prevent parity dependent operations like writes and compute_blocks
147 * the check without damaging the parity block, in these cases the parity
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| /linux/fs/ocfs2/ |
| H A D | blockcheck.h | 63 * Encoding hamming code parity bits for a buffer.
70 * parity = ocfs2_hamming_encode(0, buf1, 512 * 8, 0);
71 * parity = ocfs2_hamming_encode(parity, buf2, 512 * 8, 512 * 8);
75 u32 ocfs2_hamming_encode(u32 parity, void *data, unsigned int d,
78 * Fix a buffer with a bit error. The 'fix' is the original parity
79 * xor'd with the parity calculated now.
|
| H A D | blockcheck.c | 31 * p = # parity bits
39 * power-of-two bits for parity, the data bit number and the code bit
40 * number are offset by all the parity bits beforehand.
46 * so it's a parity bit. 2 is a power of two (2^1), so it's a parity bit.
51 * number of parity bits added. This allows the function to start the
73 * would be _if_ it were bumped up by the parity bit. Capice? in calc_code_bit()
92 * parity = ocfs2_hamming_encode(0, buf1, 512 * 8, 0);
93 * parity = ocfs2_hamming_encode(parity, buf2, 512 * 8, 512 * 8);
97 u32 ocfs2_hamming_encode(u32 parity, void *data, unsigned int d, unsigned int nr) in ocfs2_hamming_encode() argument
122 * parity bits that are part of the bit number in ocfs2_hamming_encode()
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| /linux/Documentation/admin-guide/device-mapper/ |
| H A D | dm-raid.rst | 22 raid4 RAID4 with dedicated last parity disk
23 raid5_n RAID5 with dedicated last parity disk supporting takeover
29 - rotating parity 0 with data continuation
32 - rotating parity N with data continuation
35 - rotating parity 0 with data restart
38 - rotating parity N with data restart
41 - rotating parity zero (left-to-right) with data restart
44 - rotating parity N (right-to-left) with data restart
47 - rotating parity N (right-to-left) with data continuation
48 raid6_n_6 RAID6 with dedicate parity disks
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| /linux/lib/reed_solomon/ |
| H A D | reed_solomon.c | 317 * encode_rs8 - Calculate the parity for data values (8bit data width)
321 * @par: parity data, must be initialized by caller (usually all 0)
324 * The parity uses a uint16_t data type to enable
341 * @par: received parity data field
347 * @invmsk: invert data mask (will be xored on data, not on parity!)
350 * The syndrome and parity uses a uint16_t data type to enable
352 * syndrome result and the received parity before calling this code.
359 * errors. The count includes errors in the parity.
372 * encode_rs16 - Calculate the parity for data values (16bit data width)
376 * @par: parity data, must be initialized by caller (usually all 0)
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| /linux/drivers/fsi/ |
| H A D | fsi-master-i2cr.c | 39 static bool i2cr_check_parity32(u32 v, bool parity) in i2cr_check_parity32() argument
45 parity = !parity; in i2cr_check_parity32()
48 return parity; in i2cr_check_parity32()
54 bool parity = I2CR_INITIAL_PARITY; in i2cr_check_parity64() local
58 parity = !parity; in i2cr_check_parity64()
61 return parity; in i2cr_check_parity64()
64 static u32 i2cr_get_command(u32 address, bool parity) in i2cr_get_command() argument
68 if (i2cr_check_parity32(address, parity)) in i2cr_get_command()
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| /linux/Documentation/scsi/ |
| H A D | aha152x.rst | 30 PARITY enable parity checking (0/1; default 1 [on])
48 - DSETUP0="{ IOPORT, IRQ, SCSI_ID, RECONNECT, PARITY, SYNCHRONOUS, DELAY, EXT_TRANS }"
51 - DSETUP1="{ IOPORT, IRQ, SCSI_ID, RECONNECT, PARITY, SYNCHRONOUS, DELAY, EXT_TRANS }"
66 …aha152x=<IOPORT>[,<IRQ>[,<SCSI-ID>[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY> [,<EXT_TRANS]]]]…
82 aha152x=IOPORT,IRQ,SCSI_ID,RECONNECT,PARITY,SYNCHRONOUS,DELAY,EXT_TRANS
88 aha152x1=IOPORT,IRQ,SCSI_ID,RECONNECT,PARITY,SYNCHRONOUS,DELAY,EXT_TRANS
106 parity=PAR0[PAR1]
107 use parity for first and second controller
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| /linux/arch/arm/mm/ |
| H A D | fsr-3level.c | 27 { do_bad, SIGBUS, 0, "synchronous parity error" },
28 { do_bad, SIGBUS, 0, "asynchronous parity error" },
31 { do_bad, SIGBUS, 0, "synchronous parity error (translation table walk" },
32 { do_bad, SIGBUS, 0, "synchronous parity error (translation table walk" },
33 { do_bad, SIGBUS, 0, "synchronous parity error (translation table walk" },
34 { do_bad, SIGBUS, 0, "synchronous parity error (translation table walk" },
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| /linux/arch/mips/mti-malta/ |
| H A D | malta-init.c | 46 char parity = '\0', bits = '\0', flow = '\0'; in console_config() local
56 parity = *s++; in console_config()
68 if (parity != 'n' && parity != 'o' && parity != 'e') in console_config()
69 parity = 'n'; in console_config()
77 parity, bits); in console_config()
83 parity, bits, flow); in console_config()
|