Fidconvert

Enumerations
enum	{   M0_FID_DEVICE_ID_BITS = 24, M0_FID_DEVICE_ID_OFFSET = 32, M0_FID_DEVICE_ID_MASK, M0_FID_DEVICE_ID_MAX = (1ULL << M0_FID_DEVICE_ID_BITS) - 1,   M0_FID_GOB_CONTAINER_MASK = (1ULL << M0_FID_DEVICE_ID_OFFSET) - 1, M0_AD_STOB_LINUX_DOM_KEY = 0xadf11e, M0_SDEV_CID_DEFAULT = 1 }

Functions
M0_INTERNAL uint32_t	m0_fid__device_id_extract (const struct m0_fid *fid)
M0_INTERNAL void	m0_fid_gob_make (struct m0_fid *gob_fid, uint32_t container, uint64_t key)
M0_INTERNAL void	m0_fid_convert_gob2cob (const struct m0_fid *gob_fid, struct m0_fid *cob_fid, uint32_t device_id)
M0_INTERNAL void	m0_fid_convert_cob2gob (const struct m0_fid *cob_fid, struct m0_fid *gob_fid)
M0_INTERNAL uint32_t	m0_fid_cob_device_id (const struct m0_fid *cob_fid)
M0_INTERNAL uint64_t	m0_fid_conf_sdev_device_id (const struct m0_fid *sdev_fid)
M0_INTERNAL bool	m0_fid_validate_gob (const struct m0_fid *gob_fid)
M0_INTERNAL bool	m0_fid_validate_cob (const struct m0_fid *cob_fid)
M0_INTERNAL void	m0_fid_convert_cob2stob (const struct m0_fid *cob_fid, struct m0_stob_id *stob_id)
M0_INTERNAL void	m0_fid_convert_cob2adstob (const struct m0_fid *cob_fid, struct m0_stob_id *stob_id)
M0_INTERNAL void	m0_fid_convert_adstob2cob (const struct m0_stob_id *stob_id, struct m0_fid *cob_fid)
M0_INTERNAL void	m0_fid_convert_stob2cob (const struct m0_stob_id *stob_id, struct m0_fid *cob_fid)
M0_INTERNAL void	m0_fid_convert_bstore2adstob (const struct m0_fid *bstore_fid, struct m0_fid *stob_domain_fid)
M0_INTERNAL void	m0_fid_convert_adstob2bstore (const struct m0_fid *stob_domain_fid, struct m0_fid *bstore_fid)
M0_INTERNAL bool	m0_fid_validate_adstob (const struct m0_stob_id *stob_id)
M0_INTERNAL bool	m0_fid_validate_bstore (const struct m0_fid *bstore_fid)
M0_INTERNAL bool	m0_fid_validate_linuxstob (const struct m0_stob_id *stob_id)
M0_INTERNAL void	m0_fid_convert_cob2linuxstob (const struct m0_fid *cob_fid, struct m0_stob_id *stob_id)
M0_INTERNAL void	m0_fid_convert_linuxstob2cob (const struct m0_stob_id *stob_id, struct m0_fid *cob_fid)

Detailed Description

*                     8 bits           24 bits             96 bits
*                 +-----------------+-----------+---------------------------+
*    GOB fid      |   GOB type id   |  zeroed   |                           |
*                 +-----------------+-----------+---------------------------+
*                                                            ||
*                                                            \/
*                 +-----------------+-----------+---------------------------+
*    COB fid      |   COB type id   | device id |                           |
*                 +-----------------+-----------+---------------------------+
*                                        ||                  ||
*                                        \/                  \/
*    AD stob      +-----------------+-----------+---------------------------+
*      fid        | AD stob type id | device id |                           |
*                 +-----------------+-----------+---------------------------+
*
*                       8 bits                96 bits             24 bits
*                 +-----------------+---------------------------+-----------+
*     AD stob     | AD stob domain  |          zeroed           | device id |
*   domain fid    |    type id      |                           |           |
*                 +-----------------+---------------------------------------+
*                                                      ||
*                                                      \/
*  AD stob domain +-----------------+---------------------------------------+
*  backing store  |   linux stob    |                                       |
*    stob fid     |     type id     |                                       |
*                 +-----------------+---------------------------------------+
*                       8 bits                     120 bits
*                 +-----------------+---------------------------------------+
*     Linux stob  | Linux stob dom  |                                       |
*   domain fid    |    type id      |        FIXED DOM KEY                  |
*                 +-----------------+---------------------------------------+
* 

Note: ad stob backing store conversion is here because ad stob itself doesn't have limitation on backing store stob fid, but ioservice has such limitation.

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
M0_FID_DEVICE_ID_BITS
M0_FID_DEVICE_ID_OFFSET
M0_FID_DEVICE_ID_MASK
M0_FID_DEVICE_ID_MAX
M0_FID_GOB_CONTAINER_MASK
M0_AD_STOB_LINUX_DOM_KEY
M0_SDEV_CID_DEFAULT	Default cid for fake linuxstob storage.

Definition at line 76 of file fid_convert.h.

Function Documentation

m0_fid__device_id_extract()

M0_INTERNAL uint32_t m0_fid__device_id_extract

(

const struct m0_fid *

fid

)

Definition at line 40 of file fid_convert.c.

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m0_fid_cob_device_id()

M0_INTERNAL uint32_t m0_fid_cob_device_id

(

const struct m0_fid *

cob_fid

)

Definition at line 81 of file fid_convert.c.

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m0_fid_conf_sdev_device_id()

M0_INTERNAL uint64_t m0_fid_conf_sdev_device_id

(

const struct m0_fid *

sdev_fid

)

Definition at line 88 of file fid_convert.c.

m0_fid_convert_adstob2bstore()

M0_INTERNAL void m0_fid_convert_adstob2bstore	(	const struct m0_fid *	stob_domain_fid,
		struct m0_fid *	bstore_fid
	)

Definition at line 76 of file fid_convert.c.

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m0_fid_convert_adstob2cob()

M0_INTERNAL void m0_fid_convert_adstob2cob	(	const struct m0_stob_id *	stob_id,
		struct m0_fid *	cob_fid
	)

Definition at line 54 of file fid_convert.c.

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m0_fid_convert_bstore2adstob()

M0_INTERNAL void m0_fid_convert_bstore2adstob	(	const struct m0_fid *	bstore_fid,
		struct m0_fid *	stob_domain_fid
	)

Definition at line 66 of file fid_convert.c.

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m0_fid_convert_cob2adstob()

M0_INTERNAL void m0_fid_convert_cob2adstob	(	const struct m0_fid *	cob_fid,
		struct m0_stob_id *	stob_id
	)

Definition at line 38 of file fid_convert.c.

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m0_fid_convert_cob2gob()

M0_INTERNAL void m0_fid_convert_cob2gob	(	const struct m0_fid *	cob_fid,
		struct m0_fid *	gob_fid
	)

Definition at line 69 of file fid_convert.c.

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m0_fid_convert_cob2linuxstob()

M0_INTERNAL void m0_fid_convert_cob2linuxstob	(	const struct m0_fid *	cob_fid,
		struct m0_stob_id *	stob_id
	)

Definition at line 113 of file fid_convert.c.

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m0_fid_convert_cob2stob()

M0_INTERNAL void m0_fid_convert_cob2stob	(	const struct m0_fid *	cob_fid,
		struct m0_stob_id *	stob_id
	)

Definition at line 141 of file fid_convert.c.

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m0_fid_convert_gob2cob()

M0_INTERNAL void m0_fid_convert_gob2cob	(	const struct m0_fid *	gob_fid,
		struct m0_fid *	cob_fid,
		uint32_t	device_id
	)

Definition at line 55 of file fid_convert.c.

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m0_fid_convert_linuxstob2cob()

M0_INTERNAL void m0_fid_convert_linuxstob2cob	(	const struct m0_stob_id *	stob_id,
		struct m0_fid *	cob_fid
	)

Definition at line 130 of file fid_convert.c.

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m0_fid_convert_stob2cob()

M0_INTERNAL void m0_fid_convert_stob2cob	(	const struct m0_stob_id *	stob_id,
		struct m0_fid *	cob_fid
	)

Definition at line 152 of file fid_convert.c.

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m0_fid_gob_make()

M0_INTERNAL void m0_fid_gob_make	(	struct m0_fid *	gob_fid,
		uint32_t	container,
		uint64_t	key
	)

Definition at line 46 of file fid_convert.c.

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m0_fid_validate_adstob()

M0_INTERNAL bool m0_fid_validate_adstob

(

const struct m0_stob_id *

stob_id

)

Definition at line 87 of file fid_convert.c.

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m0_fid_validate_bstore()

M0_INTERNAL bool m0_fid_validate_bstore

(

const struct m0_fid *

bstore_fid

)

Definition at line 98 of file fid_convert.c.

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m0_fid_validate_cob()

M0_INTERNAL bool m0_fid_validate_cob

(

const struct m0_fid *

cob_fid

)

Definition at line 99 of file fid_convert.c.

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m0_fid_validate_gob()

M0_INTERNAL bool m0_fid_validate_gob

(

const struct m0_fid *

gob_fid

)

Definition at line 93 of file fid_convert.c.

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m0_fid_validate_linuxstob()

M0_INTERNAL bool m0_fid_validate_linuxstob

(

const struct m0_stob_id *

stob_id

)

Definition at line 103 of file fid_convert.c.

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