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Searched refs:checksum (Results 1 – 25 of 1031) sorted by relevance

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/linux/arch/alpha/lib/
A Dcsum_partial_copy.c94 checksum += carry; in csum_partial_cfu_aligned()
96 checksum += word; in csum_partial_cfu_aligned()
103 checksum += carry; in csum_partial_cfu_aligned()
110 checksum += word; in csum_partial_cfu_aligned()
116 return checksum; in csum_partial_cfu_aligned()
149 checksum += word; in csum_partial_cfu_dest_aligned()
155 checksum += carry; in csum_partial_cfu_dest_aligned()
166 checksum += word; in csum_partial_cfu_dest_aligned()
172 return checksum; in csum_partial_cfu_dest_aligned()
229 return checksum; in csum_partial_cfu_src_aligned()
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/linux/net/ncsi/
A Dncsi-pkt.h39 __be32 checksum; /* Checksum */ member
45 __be32 checksum; /* Checksum */ member
71 __be32 checksum; /* Checksum */ member
129 __be32 checksum; /* Checksum */ member
137 __be32 checksum; /* Checksum */ member
193 __be32 checksum; member
207 __be32 checksum; member
328 __be32 checksum; member
335 __be32 checksum; member
350 __be32 checksum; /* Checksum */ member
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A Dncsi-cmd.c25 u32 checksum = 0; in ncsi_calculate_checksum() local
29 checksum += (((u32)data[i] << 8) | data[i + 1]); in ncsi_calculate_checksum()
31 checksum = (~checksum + 1); in ncsi_calculate_checksum()
32 return checksum; in ncsi_calculate_checksum()
41 u32 checksum; in ncsi_cmd_build_header() local
56 checksum = ncsi_calculate_checksum((unsigned char *)h, in ncsi_cmd_build_header()
60 *pchecksum = htonl(checksum); in ncsi_cmd_build_header()
/linux/Documentation/networking/
A Dchecksum-offloads.rst12 take advantage of checksum offload capabilities of various NICs.
34 The device should compute the 16-bit ones-complement checksum (i.e. the
39 the checksum field is included in the checksum computation, thus it can be used
40 to supply any needed corrections to the checksum (such as the sum of the
43 This interface only allows a single checksum to be offloaded. Where
44 encapsulation is used, the packet may have multiple checksum fields in
84 LCO is a technique for efficiently computing the outer checksum of an
89 'cancelled out' by the checksum field. This is because the sum was
90 complemented before being written to the checksum field.
93 checksum is used, and thus any checksum that TX Checksum Offload supports.
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A Dila.rst112 Transport checksum handling
118 including checksum offload in NICs, that process the checksum. There are
122 a receiver verifies a checksum the ILA to SIR address
125 - adjust transport checksum
127 and if a transport layer checksum is found then it is
128 adjusted to reflect the correct checksum per the
131 - checksum neutral mapping
134 the checksum. The low order sixteen bits of the identifier
183 In the simplest format the identifier types, C-bit, and checksum
193 The checksum neutral adjustment may be configured to always be
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A Dudplite.rst9 is a variable-length checksum. This has advantages for transport of multimedia
11 fed into the codec instead of being discarded due to a failed checksum test.
63 * Sender checksum coverage: UDPLITE_SEND_CSCOV
76 * Receiver checksum coverage: UDPLITE_RECV_CSCOV
125 and according checksum. If the sender specifies a coverage < 8 and
154 is meaningless (as in TCP). Packets with a zero checksum field are
159 The checksum computation respects both buffersize and MTU. The size
204 *****checksum coverage*************
213 MTU of 1280 bytes and a write buffer of 3356 bytes. If the checksum
257 * checksum coverage violated
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/linux/drivers/platform/chrome/wilco_ec/
A Dmailbox.c77 u8 checksum = 0; in wilco_ec_checksum() local
81 checksum += data_bytes[i]; in wilco_ec_checksum()
83 return checksum; in wilco_ec_checksum()
101 rq->checksum = wilco_ec_checksum(rq, sizeof(*rq)); in wilco_ec_prepare()
102 rq->checksum += wilco_ec_checksum(msg->request_data, msg->request_size); in wilco_ec_prepare()
103 rq->checksum = -rq->checksum; in wilco_ec_prepare()
120 u8 checksum; in wilco_ec_transfer() local
152 checksum = cros_ec_lpc_io_bytes_mec(MEC_IO_READ, 0, in wilco_ec_transfer()
155 if (checksum) { in wilco_ec_transfer()
156 dev_dbg(ec->dev, "bad packet checksum 0x%02x\n", rs->checksum); in wilco_ec_transfer()
/linux/Documentation/filesystems/ext4/
A Dchecksums.rst8 The desired checksum algorithm is indicated in the superblock, though as
10 structures did not have space to fit a full 32-bit checksum, so only the
20 checksum, it will request that you run ``e2fsck -D`` to have the
24 protected by a checksum!
27 of checksum. The checksum function is whatever the superblock describes
39 - The entire superblock up to the checksum field. The UUID lives inside
43 - UUID + the entire MMP block up to the checksum field.
51 fake entry enclosing the checksum field.
55 The checksum field is set to zero.
59 the checksum field.
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A Dgroup_descr.rst36 checksum is the crc16 of the FS UUID, the group number, and the group
38 checksum is the lower 16 bits of the checksum of the FS UUID, the group
88 - Lower 16-bits of the block bitmap checksum.
92 - Lower 16-bits of the inode bitmap checksum.
102 - Group descriptor checksum; crc16(sb\_uuid+group\_num+bg\_desc) if the
106 field in bg\_desc is skipped when calculating crc16 checksum,
107 and set to zero if crc32c checksum is used.
148 - Upper 16-bits of the block bitmap checksum.
152 - Upper 16-bits of the inode bitmap checksum.
/linux/drivers/gpu/drm/vboxvideo/
A Dvbox_hgsmi.c37 u32 checksum; in hgsmi_checksum() local
39 checksum = hgsmi_hash_process(0, (u8 *)&offset, sizeof(offset)); in hgsmi_checksum()
40 checksum = hgsmi_hash_process(checksum, (u8 *)header, sizeof(*header)); in hgsmi_checksum()
42 checksum = hgsmi_hash_process(checksum, (u8 *)tail, 4); in hgsmi_checksum()
44 return hgsmi_hash_end(checksum); in hgsmi_checksum()
69 t->checksum = hgsmi_checksum(offset, h, t); in hgsmi_buffer_alloc()
/linux/kernel/gcov/
A Dclang.c62 u32 checksum; member
71 u32 checksum; member
105 void llvm_gcda_start_file(const char *orig_filename, u32 version, u32 checksum) in llvm_gcda_start_file() argument
109 current_info->checksum = checksum; in llvm_gcda_start_file()
122 info->checksum = func_checksum; in llvm_gcda_emit_function()
248 if (info1->checksum != info2->checksum) in gcov_info_is_compatible()
254 if (fn_ptr1->checksum != fn_ptr2->checksum) in gcov_info_is_compatible()
374 pos += store_gcov_u32(buffer, pos, info->checksum); in convert_to_gcda()
382 pos += store_gcov_u32(buffer, pos, fi_ptr->checksum); in convert_to_gcda()
/linux/drivers/net/ethernet/intel/igc/
A Digc_nvm.c163 u16 checksum = 0; in igc_validate_nvm_checksum() local
173 checksum += nvm_data; in igc_validate_nvm_checksum()
176 if (checksum != (u16)NVM_SUM) { in igc_validate_nvm_checksum()
196 u16 checksum = 0; in igc_update_nvm_checksum() local
206 checksum += nvm_data; in igc_update_nvm_checksum()
208 checksum = (u16)NVM_SUM - checksum; in igc_update_nvm_checksum()
209 ret_val = hw->nvm.ops.write(hw, NVM_CHECKSUM_REG, 1, &checksum); in igc_update_nvm_checksum()
/linux/drivers/net/ethernet/intel/ixgb/
A Dixgb_ee.c307 u16 checksum = 0; in ixgb_validate_eeprom_checksum() local
311 checksum += ixgb_read_eeprom(hw, i); in ixgb_validate_eeprom_checksum()
313 if (checksum == (u16) EEPROM_SUM) in ixgb_validate_eeprom_checksum()
330 u16 checksum = 0; in ixgb_update_eeprom_checksum() local
334 checksum += ixgb_read_eeprom(hw, i); in ixgb_update_eeprom_checksum()
336 checksum = (u16) EEPROM_SUM - checksum; in ixgb_update_eeprom_checksum()
338 ixgb_write_eeprom(hw, EEPROM_CHECKSUM_REG, checksum); in ixgb_update_eeprom_checksum()
443 u16 checksum = 0; in ixgb_get_eeprom_data() local
454 checksum += ee_data; in ixgb_get_eeprom_data()
458 if (checksum != (u16) EEPROM_SUM) { in ixgb_get_eeprom_data()
/linux/drivers/input/touchscreen/
A Dgoodix_fwupload.c35 u16 checksum = 0; in goodix_firmware_checksum() local
39 checksum += (data[i] << 8) + data[i + 1]; in goodix_firmware_checksum()
41 return checksum; in goodix_firmware_checksum()
49 u16 checksum; in goodix_firmware_verify() local
61 checksum = goodix_firmware_checksum(data, 4 * GOODIX_FW_SECTION_LENGTH); in goodix_firmware_verify()
62 if (checksum) { in goodix_firmware_verify()
68 checksum = goodix_firmware_checksum(data, GOODIX_FW_DSP_LENGTH); in goodix_firmware_verify()
69 if (checksum) { in goodix_firmware_verify()
312 u8 checksum = 0; in goodix_send_main_clock() local
320 checksum += main_clk; in goodix_send_main_clock()
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/linux/drivers/acpi/acpica/
A Dtbprint.c154 u8 checksum; in acpi_tb_verify_checksum() local
168 checksum = acpi_tb_checksum(ACPI_CAST_PTR(u8, table), length); in acpi_tb_verify_checksum()
172 if (checksum) { in acpi_tb_verify_checksum()
176 table->signature, table->checksum, in acpi_tb_verify_checksum()
177 (u8)(table->checksum - checksum))); in acpi_tb_verify_checksum()
/linux/drivers/net/wireless/ath/ath9k/
A Dar9003_mac.c30 int checksum = 0; in ar9003_set_txdesc() local
41 checksum += val; in ar9003_set_txdesc()
44 checksum += i->link; in ar9003_set_txdesc()
47 checksum += i->buf_addr[0]; in ar9003_set_txdesc()
49 checksum += i->buf_addr[1]; in ar9003_set_txdesc()
51 checksum += i->buf_addr[2]; in ar9003_set_txdesc()
53 checksum += i->buf_addr[3]; in ar9003_set_txdesc()
65 checksum = (u16) (((checksum & 0xffff) + (checksum >> 16)) & 0xffff); in ar9003_set_txdesc()
66 WRITE_ONCE(ads->ctl10, checksum); in ar9003_set_txdesc()
162 int checksum; in ar9003_calc_ptr_chksum() local
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/linux/drivers/mtd/parsers/
A Dar7part.c26 unsigned int checksum; member
63 if (header.checksum == LOADER_MAGIC1) in create_mtd_partitions()
65 if (header.checksum == LOADER_MAGIC2) in create_mtd_partitions()
77 switch (header.checksum) { in create_mtd_partitions()
96 printk(KERN_WARNING "Unknown magic: %08x\n", header.checksum); in create_mtd_partitions()
101 if (header.checksum != SQUASHFS_MAGIC) { in create_mtd_partitions()
/linux/drivers/fsi/
A Dfsi-occ.c235 u16 checksum; in occ_verify_checksum() local
238 checksum = resp->seq_no; in occ_verify_checksum()
239 checksum += resp->cmd_type; in occ_verify_checksum()
240 checksum += resp->return_status; in occ_verify_checksum()
244 checksum += resp->data[i]; in occ_verify_checksum()
246 if (checksum != checksum_resp) { in occ_verify_checksum()
316 u8 seq_no, u16 checksum) in occ_putsram() argument
358 byte_buf[len - 2] = checksum >> 8; in occ_putsram()
464 u16 checksum = 0; in fsi_occ_submit() local
483 checksum += byte_request[i]; in fsi_occ_submit()
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/linux/kernel/debug/
A Dgdbstub.c90 unsigned char checksum; in get_packet() local
104 checksum = 0; in get_packet()
116 checksum = checksum + ch; in get_packet()
125 if (checksum != xmitcsum) in get_packet()
135 } while (checksum != xmitcsum); in get_packet()
144 unsigned char checksum; in put_packet() local
153 checksum = 0; in put_packet()
158 checksum += ch; in put_packet()
1126 unsigned char checksum, ch, buffer[3]; in gdbstub_exit() local
1141 checksum = 0; in gdbstub_exit()
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/linux/drivers/nfc/s3fwrn5/
A Dnci.c55 u32 checksum; in s3fwrn5_nci_rf_configure() local
65 checksum = 0; in s3fwrn5_nci_rf_configure()
67 checksum += *((u32 *)(fw->data+i)); in s3fwrn5_nci_rf_configure()
107 stop_rfreg.checksum = checksum & 0xffff; in s3fwrn5_nci_rf_configure()
/linux/drivers/net/ethernet/intel/ixgbe/
A Dixgbe_x540.c310 u16 checksum = 0; in ixgbe_calc_eeprom_checksum_X540() local
329 checksum += word; in ixgbe_calc_eeprom_checksum_X540()
365 checksum += word; in ixgbe_calc_eeprom_checksum_X540()
369 checksum = (u16)IXGBE_EEPROM_SUM - checksum; in ixgbe_calc_eeprom_checksum_X540()
371 return (s32)checksum; in ixgbe_calc_eeprom_checksum_X540()
386 u16 checksum; in ixgbe_validate_eeprom_checksum_X540() local
406 checksum = (u16)(status & 0xffff); in ixgbe_validate_eeprom_checksum_X540()
419 if (read_checksum != checksum) { in ixgbe_validate_eeprom_checksum_X540()
426 *checksum_val = checksum; in ixgbe_validate_eeprom_checksum_X540()
445 u16 checksum; in ixgbe_update_eeprom_checksum_X540() local
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/linux/drivers/media/test-drivers/vivid/
A Dvivid-vbi-gen.c179 u8 checksum, i; in vivid_vbi_gen_set_time_of_day() local
194 for (checksum = i = 0; i <= 8; i++) in vivid_vbi_gen_set_time_of_day()
195 checksum += packet[i] & 0x7f; in vivid_vbi_gen_set_time_of_day()
196 packet[9] = calc_parity(0x100 - checksum); in vivid_vbi_gen_set_time_of_day()
197 checksum = 0; in vivid_vbi_gen_set_time_of_day()
206 for (checksum = 0, i = 10; i <= 14; i++) in vivid_vbi_gen_set_time_of_day()
207 checksum += packet[i] & 0x7f; in vivid_vbi_gen_set_time_of_day()
208 packet[15] = calc_parity(0x100 - checksum); in vivid_vbi_gen_set_time_of_day()
/linux/drivers/scsi/aic7xxx/
A Daic7xxx_93cx6.c303 uint32_t checksum; in ahc_verify_cksum() local
307 checksum = 0; in ahc_verify_cksum()
311 checksum = checksum + scarray[i]; in ahc_verify_cksum()
312 if (checksum == 0 in ahc_verify_cksum()
313 || (checksum & 0xFFFF) != sc->checksum) { in ahc_verify_cksum()
/linux/drivers/gpu/drm/amd/display/modules/info_packet/
A Dinfo_packet.c423 uint8_t checksum = 0; in mod_build_hf_vsif_infopacket() local
479 checksum += info_packet->hb0; in mod_build_hf_vsif_infopacket()
480 checksum += info_packet->hb1; in mod_build_hf_vsif_infopacket()
481 checksum += info_packet->hb2; in mod_build_hf_vsif_infopacket()
484 checksum += info_packet->sb[i]; in mod_build_hf_vsif_infopacket()
486 info_packet->sb[0] = (uint8_t) (0x100 - checksum); in mod_build_hf_vsif_infopacket()
/linux/drivers/media/usb/dvb-usb/
A Daf9005.c556 u16 checksum; in af9005_boot_packet() local
568 checksum = buf[4] + buf[5]; in af9005_boot_packet()
570 buf[7] = (u8) (checksum & 0xff); in af9005_boot_packet()
577 checksum = buf[4] + buf[5]; in af9005_boot_packet()
579 buf[7] = (u8) (checksum & 0xff); in af9005_boot_packet()
590 checksum = 0; in af9005_boot_packet()
592 checksum += buf[i]; in af9005_boot_packet()
622 checksum = 0; in af9005_boot_packet()
642 checksum += buf[i]; in af9005_boot_packet()
667 checksum += buf[i]; in af9005_boot_packet()
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