spdk_bdev_io_block_params Struct Reference

Collaboration diagram for spdk_bdev_io_block_params:

Data Fields
struct iovec *	iovs
	For SG buffer cases, array of iovecs to transfer.
int	iovcnt
	For SG buffer cases, number of iovecs in iovec array.
uint64_t	num_blocks
	Total size of data to be transferred.
uint64_t	offset_blocks
	Starting offset (in blocks) of the bdev for this I/O.
struct spdk_memory_domain *	memory_domain
	Memory domain and its context to be used by bdev modules.
void *	memory_domain_ctx
struct spdk_accel_sequence *	accel_sequence
void *	md_buf
struct iovec *	fused_iovs
	For fused operations such as COMPARE_AND_WRITE, array of iovecs for the second operation.
int	fused_iovcnt
	Number of iovecs in fused_iovs.
uint32_t	dif_check_flags
	Specify whether each DIF check type is enabled.
union spdk_bdev_nvme_cdw12	nvme_cdw12
	defined by spdk_bdev_nvme_cdw12
union spdk_bdev_nvme_cdw13	nvme_cdw13
	defined by spdk_bdev_nvme_cdw13
struct {
uint8_t   populate: 1
	Whether the buffer should be populated with the real data.
uint8_t   commit: 1
	Whether the buffer should be committed back to disk.
uint8_t   start: 1
	True if this request is in the 'start' phase of zcopy. More...
}	zcopy
struct {
void *   bio_cb_arg
	The callback argument for the outstanding request which this abort attempts to cancel.
}	abort
struct {
uint64_t   offset
	The offset of next data/hole. More...
}	seek
struct {
uint64_t   src_offset_blocks
	Starting source offset (in blocks) of the bdev for copy I/O.
}	copy
struct spdk_dif_ctx	dif_ctx
	DIF context.
struct spdk_dif_error	dif_err
	DIF error information.

Field Documentation

offset

uint64_t spdk_bdev_io_block_params::offset

The offset of next data/hole.

start

uint8_t spdk_bdev_io_block_params::start

True if this request is in the 'start' phase of zcopy.

False if in 'end'.

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The documentation for this struct was generated from the following file:

• bdev_module.h