ocf_volume_ops Struct Reference

OCF volume interface declaration. More...

#include <ocf_volume.h>

Data Fields
void(*	submit_io )(struct ocf_io *io)
	Submit IO on this volume. More...
void(*	submit_flush )(struct ocf_io *io)
	Submit IO with flush command. More...
void(*	submit_metadata )(struct ocf_io *io)
	Submit IO with metadata. More...
void(*	submit_discard )(struct ocf_io *io)
	Submit IO with discard command. More...
void(*	submit_write_zeroes )(struct ocf_io *io)
	Submit operation to write zeroes to target address (including metadata extended LBAs in atomic mode) More...
int(*	open )(ocf_volume_t volume, void *volume_params)
	Open volume. More...
void(*	close )(ocf_volume_t volume)
	Close volume. More...
unsigned int(*	get_max_io_size )(ocf_volume_t volume)
	Get maximum io size. More...
uint64_t(*	get_length )(ocf_volume_t volume)
	Get volume length. More...

Detailed Description

OCF volume interface declaration.

Field Documentation

close

void(* close) (ocf_volume_t volume)

Close volume.

Parameters

[in]

volume

Volume

get_length

uint64_t(* get_length) (ocf_volume_t volume)

Get volume length.

Parameters

[in]

volume

Volume

Returns

Volume lenght in bytes

get_max_io_size

unsigned int(* get_max_io_size) (ocf_volume_t volume)

Get maximum io size.

Parameters

[in]

volume

Volume

Returns

Maximum io size in bytes

open

int(* open) (ocf_volume_t volume, void *volume_params)

Open volume.

Note

This function performs volume initialization and should be called before any other operation on volume

Parameters

[in]	volume	Volume
[in]	volume_params	optional volume parameters, opaque to OCF

Returns

Zero on success, otherwise error code

submit_discard

void(* submit_discard) (struct ocf_io *io)

Submit IO with discard command.

Parameters

[in]

io

IO to be submitted

submit_flush

void(* submit_flush) (struct ocf_io *io)

Submit IO with flush command.

Parameters

[in]

io

IO to be submitted

submit_io

void(* submit_io) (struct ocf_io *io)

Submit IO on this volume.

Parameters

[in]

io

IO to be submitted

submit_metadata

void(* submit_metadata) (struct ocf_io *io)

Submit IO with metadata.

Parameters

[in]

io

IO to be submitted

submit_write_zeroes

void(* submit_write_zeroes) (struct ocf_io *io)

Submit operation to write zeroes to target address (including metadata extended LBAs in atomic mode)

Parameters

[in]

io

IO description (addr, size)

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

• ocf_volume.h