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SCSI add support for POSIX compatible iovectos

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This patch defines an scsi_iovec struct which is guaranteed
to be POSIX compatible. It furthermore adds support for
in+out iovectors for bi-directional operations
Signed-off-by: Peter Lieven <pl@kamp.de>
This commit is contained in:
Peter Lieven
2012-11-23 15:43:00 +01:00
parent 55f76cfb0c
commit e7cc6dc1ca
6 changed files with 74 additions and 49 deletions
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5
include/iscsi.h
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@@ -950,6 +950,11 @@ iscsi_report_supported_opcodes_sync(struct iscsi_context *iscsi, int lun,
* task->datain.data will be NULL
*/
EXTERN int scsi_task_add_data_in_buffer(struct scsi_task *task, int len, unsigned char *buf);
EXTERN int scsi_task_add_data_out_buffer(struct scsi_task *task, int len, unsigned char *buf);
struct scsi_iovec;
EXTERN void scsi_task_set_iov_out(struct scsi_task *task, struct scsi_iovec *iov, int niov);
EXTERN void scsi_task_set_iov_in(struct scsi_task *task, struct scsi_iovec *iov, int niov);
/*
* This function is used when you want to cancel a scsi task.