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Add support for COMPARE_AND_WRITE command

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This commit is contained in:
Ronnie Sahlberg
2012-07-14 11:34:40 +10:00
parent f6705d4691
commit bdd6e6bb11
7 changed files with 126 additions and 0 deletions
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10
include/iscsi.h
View File

@@ -656,6 +656,11 @@ iscsi_write16_task(struct iscsi_context *iscsi, int lun, uint64_t lba,
int wrprotect, int dpo, int fua, int fua_nv, int group_number,
iscsi_command_cb cb, void *private_data);
EXTERN struct scsi_task *
iscsi_compareandwrite_task(struct iscsi_context *iscsi, int lun, uint64_t lba,
unsigned char *data, uint32_t datalen, int blocksize,
int wrprotect, int dpo, int fua, int fua_nv, int group_number,
iscsi_command_cb cb, void *private_data);
EXTERN struct scsi_task *
iscsi_writeverify16_task(struct iscsi_context *iscsi, int lun, uint64_t lba,
unsigned char *data, uint32_t datalen, int blocksize,
int wrprotect, int dpo, int bytchk, int group_number,
@@ -776,6 +781,11 @@ iscsi_write16_sync(struct iscsi_context *iscsi, int lun, uint64_t lba,
unsigned char *data, uint32_t datalen, int blocksize,
int wrprotect, int dpo, int fua, int fua_nv, int group_number);
EXTERN struct scsi_task *
iscsi_compareandwrite_sync(struct iscsi_context *iscsi, int lun, uint64_t lba,
unsigned char *data, uint32_t datalen, int blocksize,
int wrprotect, int dpo, int fua, int fua_nv, int group_number);
EXTERN struct scsi_task *
iscsi_writeverify16_sync(struct iscsi_context *iscsi, int lun, uint64_t lba,
unsigned char *data, uint32_t datalen, int blocksize,

7
include/scsi-lowlevel.h
View File

@@ -38,6 +38,7 @@ enum scsi_opcode {
SCSI_OPCODE_WRITE_SAME10 = 0x41,
SCSI_OPCODE_UNMAP = 0x42,
SCSI_OPCODE_READ16 = 0x88,
SCSI_OPCODE_COMPARE_AND_WRITE = 0x89,
SCSI_OPCODE_WRITE16 = 0x8A,
SCSI_OPCODE_WRITE_VERIFY16 = 0x8E,
SCSI_OPCODE_VERIFY16 = 0x8F,
@@ -130,6 +131,10 @@ struct scsi_write16_params {
uint64_t lba;
uint32_t num_blocks;
};
struct scsi_compareandwrite_params {
uint64_t lba;
uint32_t num_blocks;
};
struct scsi_writeverify10_params {
uint32_t lba;
uint32_t num_blocks;
@@ -218,6 +223,7 @@ struct scsi_task {
struct scsi_write10_params write10;
struct scsi_write12_params write12;
struct scsi_write16_params write16;
struct scsi_compareandwrite_params compareandwrite;
struct scsi_writeverify10_params writeverify10;
struct scsi_writeverify12_params writeverify12;
struct scsi_writeverify16_params writeverify16;
@@ -649,6 +655,7 @@ EXTERN struct scsi_task *scsi_cdb_read16(uint64_t lba, uint32_t xferlen, int blo
EXTERN struct scsi_task *scsi_cdb_write10(uint32_t lba, uint32_t xferlen, int blocksize, int wrprotect, int dpo, int fua, int fua_nv, int group_number);
EXTERN struct scsi_task *scsi_cdb_write12(uint32_t lba, uint32_t xferlen, int blocksize, int wrprotect, int dpo, int fua, int fua_nv, int group_number);
EXTERN struct scsi_task *scsi_cdb_write16(uint64_t lba, uint32_t xferlen, int blocksize, int wrprotect, int dpo, int fua, int fua_nv, int group_number);
EXTERN struct scsi_task *scsi_cdb_compareandwrite(uint64_t lba, uint8_t xferlen, int blocksize, int wrprotect, int dpo, int fua, int fua_nv, int group_number);
EXTERN struct scsi_task *scsi_cdb_writeverify10(uint32_t lba, uint32_t xferlen, int blocksize, int wrprotect, int dpo, int bytchk, int group_number);
EXTERN struct scsi_task *scsi_cdb_writeverify12(uint32_t lba, uint32_t xferlen, int blocksize, int wrprotect, int dpo, int bytchk, int group_number);
EXTERN struct scsi_task *scsi_cdb_writeverify16(uint64_t lba, uint32_t xferlen, int blocksize, int wrprotect, int dpo, int bytchk, int group_number);