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Read10/Write10 parameters

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LBA is uint32_t for read/write10

Also store the lba/numblocks arguments in the task structure for read10/write10
This makes it much easier to implement a fully async "read lots/write lots"
applications.
This commit is contained in:
Ronnie Sahlberg
2011-01-23 18:34:16 +11:00
parent 7b5ff1095c
commit ec08fe7a45
4 changed files with 26 additions and 10 deletions
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6
include/iscsi.h
View File

@@ -480,11 +480,11 @@ int iscsi_synchronizecache10_async(struct iscsi_context *iscsi, int lun,
int immed, iscsi_command_cb cb,
void *private_data);
int iscsi_read10_async(struct iscsi_context *iscsi, int lun, int lba,
int datalen, int blocksize, iscsi_command_cb cb,
int iscsi_read10_async(struct iscsi_context *iscsi, int lun, uint32_t lba,
uint32_t datalen, int blocksize, iscsi_command_cb cb,
void *private_data);
int iscsi_write10_async(struct iscsi_context *iscsi, int lun,
unsigned char *data, int datalen, int lba, int fua,
unsigned char *data, uint32_t datalen, uint32_t lba, int fua,
int fuanv, int blocksize, iscsi_command_cb cb,
void *private_data);
int iscsi_modesense6_async(struct iscsi_context *iscsi, int lun, int dbd,

14
include/scsi-lowlevel.h
View File

@@ -66,6 +66,14 @@ enum scsi_xfer_dir {
struct scsi_reportluns_params {
int report_type;
};
struct scsi_read10_params {
uint32_t lba;
uint32_t num_blocks;
};
struct scsi_write10_params {
uint32_t lba;
uint32_t num_blocks;
};
struct scsi_readcapacity10_params {
int lba;
int pmi;
@@ -105,6 +113,8 @@ struct scsi_task {
int expxferlen;
unsigned char cdb[SCSI_CDB_MAX_SIZE];
union {
struct scsi_read10_params read10;
struct scsi_write10_params write10;
struct scsi_readcapacity10_params readcapacity10;
struct scsi_reportluns_params reportluns;
struct scsi_inquiry_params inquiry;
@@ -361,8 +371,8 @@ struct scsi_task *scsi_cdb_modesense6(int dbd,
int scsi_datain_getfullsize(struct scsi_task *task);
void *scsi_datain_unmarshall(struct scsi_task *task);
struct scsi_task *scsi_cdb_read10(int lba, int xferlen, int blocksize);
struct scsi_task *scsi_cdb_write10(int lba, int xferlen, int fua, int fuanv,
struct scsi_task *scsi_cdb_read10(uint32_t lba, uint32_t xferlen, int blocksize);
struct scsi_task *scsi_cdb_write10(uint32_t lba, uint32_t xferlen, int fua, int fuanv,
int blocksize);
struct scsi_task *scsi_cdb_synchronizecache10(int lba, int num_blocks,

6
lib/scsi-command.c
View File

@@ -569,8 +569,8 @@ iscsi_readcapacity10_async(struct iscsi_context *iscsi, int lun, int lba,
}
int
iscsi_read10_async(struct iscsi_context *iscsi, int lun, int lba,
int datalen, int blocksize,
iscsi_read10_async(struct iscsi_context *iscsi, int lun, uint32_t lba,
uint32_t datalen, int blocksize,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
@@ -597,7 +597,7 @@ iscsi_read10_async(struct iscsi_context *iscsi, int lun, int lba,
int
iscsi_write10_async(struct iscsi_context *iscsi, int lun, unsigned char *data,
int datalen, int lba, int fua, int fuanv, int blocksize,
uint32_t datalen, uint32_t lba, int fua, int fuanv, int blocksize,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;

10
lib/scsi-lowlevel.c
View File

@@ -507,7 +507,7 @@ scsi_inquiry_datain_unmarshall(struct scsi_task *task)
* READ10
*/
struct scsi_task *
scsi_cdb_read10(int lba, int xferlen, int blocksize)
scsi_cdb_read10(uint32_t lba, uint32_t xferlen, int blocksize)
{
struct scsi_task *task;
@@ -526,6 +526,9 @@ scsi_cdb_read10(int lba, int xferlen, int blocksize)
task->xfer_dir = SCSI_XFER_READ;
task->expxferlen = xferlen;
task->params.read10.lba = lba;
task->params.read10.num_blocks = xferlen/blocksize;
return task;
}
@@ -533,7 +536,7 @@ scsi_cdb_read10(int lba, int xferlen, int blocksize)
* WRITE10
*/
struct scsi_task *
scsi_cdb_write10(int lba, int xferlen, int fua, int fuanv, int blocksize)
scsi_cdb_write10(uint32_t lba, uint32_t xferlen, int fua, int fuanv, int blocksize)
{
struct scsi_task *task;
@@ -559,6 +562,9 @@ scsi_cdb_write10(int lba, int xferlen, int fua, int fuanv, int blocksize)
task->xfer_dir = SCSI_XFER_WRITE;
task->expxferlen = xferlen;
task->params.write10.lba = lba;
task->params.write10.num_blocks = xferlen/blocksize;
return task;
}